Commit | Line | Data |
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79e53945 JB |
1 | /* |
2 | * Copyright © 2006-2007 Intel Corporation | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice (including the next | |
12 | * paragraph) shall be included in all copies or substantial portions of the | |
13 | * Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
21 | * DEALINGS IN THE SOFTWARE. | |
22 | * | |
23 | * Authors: | |
24 | * Eric Anholt <eric@anholt.net> | |
25 | */ | |
26 | ||
618563e3 | 27 | #include <linux/dmi.h> |
c1c7af60 JB |
28 | #include <linux/module.h> |
29 | #include <linux/input.h> | |
79e53945 | 30 | #include <linux/i2c.h> |
7662c8bd | 31 | #include <linux/kernel.h> |
5a0e3ad6 | 32 | #include <linux/slab.h> |
9cce37f4 | 33 | #include <linux/vgaarb.h> |
e0dac65e | 34 | #include <drm/drm_edid.h> |
760285e7 | 35 | #include <drm/drmP.h> |
79e53945 | 36 | #include "intel_drv.h" |
760285e7 | 37 | #include <drm/i915_drm.h> |
79e53945 | 38 | #include "i915_drv.h" |
db18b6a6 | 39 | #include "intel_dsi.h" |
e5510fac | 40 | #include "i915_trace.h" |
319c1d42 | 41 | #include <drm/drm_atomic.h> |
c196e1d6 | 42 | #include <drm/drm_atomic_helper.h> |
760285e7 DH |
43 | #include <drm/drm_dp_helper.h> |
44 | #include <drm/drm_crtc_helper.h> | |
465c120c MR |
45 | #include <drm/drm_plane_helper.h> |
46 | #include <drm/drm_rect.h> | |
c0f372b3 | 47 | #include <linux/dma_remapping.h> |
fd8e058a AG |
48 | #include <linux/reservation.h> |
49 | #include <linux/dma-buf.h> | |
79e53945 | 50 | |
465c120c | 51 | /* Primary plane formats for gen <= 3 */ |
568db4f2 | 52 | static const uint32_t i8xx_primary_formats[] = { |
67fe7dc5 DL |
53 | DRM_FORMAT_C8, |
54 | DRM_FORMAT_RGB565, | |
465c120c | 55 | DRM_FORMAT_XRGB1555, |
67fe7dc5 | 56 | DRM_FORMAT_XRGB8888, |
465c120c MR |
57 | }; |
58 | ||
59 | /* Primary plane formats for gen >= 4 */ | |
568db4f2 | 60 | static const uint32_t i965_primary_formats[] = { |
6c0fd451 DL |
61 | DRM_FORMAT_C8, |
62 | DRM_FORMAT_RGB565, | |
63 | DRM_FORMAT_XRGB8888, | |
64 | DRM_FORMAT_XBGR8888, | |
65 | DRM_FORMAT_XRGB2101010, | |
66 | DRM_FORMAT_XBGR2101010, | |
67 | }; | |
68 | ||
69 | static const uint32_t skl_primary_formats[] = { | |
67fe7dc5 DL |
70 | DRM_FORMAT_C8, |
71 | DRM_FORMAT_RGB565, | |
72 | DRM_FORMAT_XRGB8888, | |
465c120c | 73 | DRM_FORMAT_XBGR8888, |
67fe7dc5 | 74 | DRM_FORMAT_ARGB8888, |
465c120c MR |
75 | DRM_FORMAT_ABGR8888, |
76 | DRM_FORMAT_XRGB2101010, | |
465c120c | 77 | DRM_FORMAT_XBGR2101010, |
ea916ea0 KM |
78 | DRM_FORMAT_YUYV, |
79 | DRM_FORMAT_YVYU, | |
80 | DRM_FORMAT_UYVY, | |
81 | DRM_FORMAT_VYUY, | |
465c120c MR |
82 | }; |
83 | ||
3d7d6510 MR |
84 | /* Cursor formats */ |
85 | static const uint32_t intel_cursor_formats[] = { | |
86 | DRM_FORMAT_ARGB8888, | |
87 | }; | |
88 | ||
f1f644dc | 89 | static void i9xx_crtc_clock_get(struct intel_crtc *crtc, |
5cec258b | 90 | struct intel_crtc_state *pipe_config); |
18442d08 | 91 | static void ironlake_pch_clock_get(struct intel_crtc *crtc, |
5cec258b | 92 | struct intel_crtc_state *pipe_config); |
f1f644dc | 93 | |
eb1bfe80 JB |
94 | static int intel_framebuffer_init(struct drm_device *dev, |
95 | struct intel_framebuffer *ifb, | |
96 | struct drm_mode_fb_cmd2 *mode_cmd, | |
97 | struct drm_i915_gem_object *obj); | |
5b18e57c DV |
98 | static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc); |
99 | static void intel_set_pipe_timings(struct intel_crtc *intel_crtc); | |
bc58be60 | 100 | static void intel_set_pipe_src_size(struct intel_crtc *intel_crtc); |
29407aab | 101 | static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc, |
f769cd24 VK |
102 | struct intel_link_m_n *m_n, |
103 | struct intel_link_m_n *m2_n2); | |
29407aab | 104 | static void ironlake_set_pipeconf(struct drm_crtc *crtc); |
229fca97 | 105 | static void haswell_set_pipeconf(struct drm_crtc *crtc); |
391bf048 | 106 | static void haswell_set_pipemisc(struct drm_crtc *crtc); |
d288f65f | 107 | static void vlv_prepare_pll(struct intel_crtc *crtc, |
5cec258b | 108 | const struct intel_crtc_state *pipe_config); |
d288f65f | 109 | static void chv_prepare_pll(struct intel_crtc *crtc, |
5cec258b | 110 | const struct intel_crtc_state *pipe_config); |
613d2b27 ML |
111 | static void intel_begin_crtc_commit(struct drm_crtc *, struct drm_crtc_state *); |
112 | static void intel_finish_crtc_commit(struct drm_crtc *, struct drm_crtc_state *); | |
549e2bfb CK |
113 | static void skl_init_scalers(struct drm_device *dev, struct intel_crtc *intel_crtc, |
114 | struct intel_crtc_state *crtc_state); | |
bfd16b2a ML |
115 | static void skylake_pfit_enable(struct intel_crtc *crtc); |
116 | static void ironlake_pfit_disable(struct intel_crtc *crtc, bool force); | |
117 | static void ironlake_pfit_enable(struct intel_crtc *crtc); | |
043e9bda | 118 | static void intel_modeset_setup_hw_state(struct drm_device *dev); |
2622a081 | 119 | static void intel_pre_disable_primary_noatomic(struct drm_crtc *crtc); |
e7457a9a | 120 | |
79e53945 | 121 | typedef struct { |
0206e353 | 122 | int min, max; |
79e53945 JB |
123 | } intel_range_t; |
124 | ||
125 | typedef struct { | |
0206e353 AJ |
126 | int dot_limit; |
127 | int p2_slow, p2_fast; | |
79e53945 JB |
128 | } intel_p2_t; |
129 | ||
d4906093 ML |
130 | typedef struct intel_limit intel_limit_t; |
131 | struct intel_limit { | |
0206e353 AJ |
132 | intel_range_t dot, vco, n, m, m1, m2, p, p1; |
133 | intel_p2_t p2; | |
d4906093 | 134 | }; |
79e53945 | 135 | |
bfa7df01 VS |
136 | /* returns HPLL frequency in kHz */ |
137 | static int valleyview_get_vco(struct drm_i915_private *dev_priv) | |
138 | { | |
139 | int hpll_freq, vco_freq[] = { 800, 1600, 2000, 2400 }; | |
140 | ||
141 | /* Obtain SKU information */ | |
142 | mutex_lock(&dev_priv->sb_lock); | |
143 | hpll_freq = vlv_cck_read(dev_priv, CCK_FUSE_REG) & | |
144 | CCK_FUSE_HPLL_FREQ_MASK; | |
145 | mutex_unlock(&dev_priv->sb_lock); | |
146 | ||
147 | return vco_freq[hpll_freq] * 1000; | |
148 | } | |
149 | ||
c30fec65 VS |
150 | int vlv_get_cck_clock(struct drm_i915_private *dev_priv, |
151 | const char *name, u32 reg, int ref_freq) | |
bfa7df01 VS |
152 | { |
153 | u32 val; | |
154 | int divider; | |
155 | ||
bfa7df01 VS |
156 | mutex_lock(&dev_priv->sb_lock); |
157 | val = vlv_cck_read(dev_priv, reg); | |
158 | mutex_unlock(&dev_priv->sb_lock); | |
159 | ||
160 | divider = val & CCK_FREQUENCY_VALUES; | |
161 | ||
162 | WARN((val & CCK_FREQUENCY_STATUS) != | |
163 | (divider << CCK_FREQUENCY_STATUS_SHIFT), | |
164 | "%s change in progress\n", name); | |
165 | ||
c30fec65 | 166 | return DIV_ROUND_CLOSEST(ref_freq << 1, divider + 1); |
bfa7df01 VS |
167 | } |
168 | ||
c30fec65 VS |
169 | static int vlv_get_cck_clock_hpll(struct drm_i915_private *dev_priv, |
170 | const char *name, u32 reg) | |
d2acd215 | 171 | { |
c30fec65 VS |
172 | if (dev_priv->hpll_freq == 0) |
173 | dev_priv->hpll_freq = valleyview_get_vco(dev_priv); | |
d2acd215 | 174 | |
c30fec65 VS |
175 | return vlv_get_cck_clock(dev_priv, name, reg, |
176 | dev_priv->hpll_freq); | |
bfa7df01 | 177 | } |
d2acd215 | 178 | |
e7dc33f3 VS |
179 | static int |
180 | intel_pch_rawclk(struct drm_i915_private *dev_priv) | |
d2acd215 | 181 | { |
e7dc33f3 | 182 | return (I915_READ(PCH_RAWCLK_FREQ) & RAWCLK_FREQ_MASK) * 1000; |
d2acd215 DV |
183 | } |
184 | ||
e7dc33f3 VS |
185 | static int |
186 | intel_vlv_hrawclk(struct drm_i915_private *dev_priv) | |
79e50a4f | 187 | { |
35d38d1f VS |
188 | return vlv_get_cck_clock_hpll(dev_priv, "hrawclk", |
189 | CCK_DISPLAY_REF_CLOCK_CONTROL); | |
d2acd215 | 190 | } |
79e50a4f | 191 | |
e7dc33f3 VS |
192 | static int |
193 | intel_g4x_hrawclk(struct drm_i915_private *dev_priv) | |
79e50a4f | 194 | { |
79e50a4f | 195 | uint32_t clkcfg; |
79e50a4f | 196 | |
e7dc33f3 | 197 | /* hrawclock is 1/4 the FSB frequency */ |
79e50a4f JN |
198 | clkcfg = I915_READ(CLKCFG); |
199 | switch (clkcfg & CLKCFG_FSB_MASK) { | |
200 | case CLKCFG_FSB_400: | |
e7dc33f3 | 201 | return 100000; |
79e50a4f | 202 | case CLKCFG_FSB_533: |
e7dc33f3 | 203 | return 133333; |
79e50a4f | 204 | case CLKCFG_FSB_667: |
e7dc33f3 | 205 | return 166667; |
79e50a4f | 206 | case CLKCFG_FSB_800: |
e7dc33f3 | 207 | return 200000; |
79e50a4f | 208 | case CLKCFG_FSB_1067: |
e7dc33f3 | 209 | return 266667; |
79e50a4f | 210 | case CLKCFG_FSB_1333: |
e7dc33f3 | 211 | return 333333; |
79e50a4f JN |
212 | /* these two are just a guess; one of them might be right */ |
213 | case CLKCFG_FSB_1600: | |
214 | case CLKCFG_FSB_1600_ALT: | |
e7dc33f3 | 215 | return 400000; |
79e50a4f | 216 | default: |
e7dc33f3 | 217 | return 133333; |
79e50a4f JN |
218 | } |
219 | } | |
220 | ||
e7dc33f3 VS |
221 | static void intel_update_rawclk(struct drm_i915_private *dev_priv) |
222 | { | |
223 | if (HAS_PCH_SPLIT(dev_priv)) | |
224 | dev_priv->rawclk_freq = intel_pch_rawclk(dev_priv); | |
225 | else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) | |
226 | dev_priv->rawclk_freq = intel_vlv_hrawclk(dev_priv); | |
227 | else if (IS_G4X(dev_priv) || IS_PINEVIEW(dev_priv)) | |
228 | dev_priv->rawclk_freq = intel_g4x_hrawclk(dev_priv); | |
229 | else | |
230 | return; /* no rawclk on other platforms, or no need to know it */ | |
231 | ||
232 | DRM_DEBUG_DRIVER("rawclk rate: %d kHz\n", dev_priv->rawclk_freq); | |
233 | } | |
234 | ||
bfa7df01 VS |
235 | static void intel_update_czclk(struct drm_i915_private *dev_priv) |
236 | { | |
666a4537 | 237 | if (!(IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))) |
bfa7df01 VS |
238 | return; |
239 | ||
240 | dev_priv->czclk_freq = vlv_get_cck_clock_hpll(dev_priv, "czclk", | |
241 | CCK_CZ_CLOCK_CONTROL); | |
242 | ||
243 | DRM_DEBUG_DRIVER("CZ clock rate: %d kHz\n", dev_priv->czclk_freq); | |
244 | } | |
245 | ||
021357ac | 246 | static inline u32 /* units of 100MHz */ |
21a727b3 VS |
247 | intel_fdi_link_freq(struct drm_i915_private *dev_priv, |
248 | const struct intel_crtc_state *pipe_config) | |
021357ac | 249 | { |
21a727b3 VS |
250 | if (HAS_DDI(dev_priv)) |
251 | return pipe_config->port_clock; /* SPLL */ | |
252 | else if (IS_GEN5(dev_priv)) | |
253 | return ((I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2) * 10000; | |
e3b247da | 254 | else |
21a727b3 | 255 | return 270000; |
021357ac CW |
256 | } |
257 | ||
5d536e28 | 258 | static const intel_limit_t intel_limits_i8xx_dac = { |
0206e353 | 259 | .dot = { .min = 25000, .max = 350000 }, |
9c333719 | 260 | .vco = { .min = 908000, .max = 1512000 }, |
91dbe5fb | 261 | .n = { .min = 2, .max = 16 }, |
0206e353 AJ |
262 | .m = { .min = 96, .max = 140 }, |
263 | .m1 = { .min = 18, .max = 26 }, | |
264 | .m2 = { .min = 6, .max = 16 }, | |
265 | .p = { .min = 4, .max = 128 }, | |
266 | .p1 = { .min = 2, .max = 33 }, | |
273e27ca EA |
267 | .p2 = { .dot_limit = 165000, |
268 | .p2_slow = 4, .p2_fast = 2 }, | |
e4b36699 KP |
269 | }; |
270 | ||
5d536e28 DV |
271 | static const intel_limit_t intel_limits_i8xx_dvo = { |
272 | .dot = { .min = 25000, .max = 350000 }, | |
9c333719 | 273 | .vco = { .min = 908000, .max = 1512000 }, |
91dbe5fb | 274 | .n = { .min = 2, .max = 16 }, |
5d536e28 DV |
275 | .m = { .min = 96, .max = 140 }, |
276 | .m1 = { .min = 18, .max = 26 }, | |
277 | .m2 = { .min = 6, .max = 16 }, | |
278 | .p = { .min = 4, .max = 128 }, | |
279 | .p1 = { .min = 2, .max = 33 }, | |
280 | .p2 = { .dot_limit = 165000, | |
281 | .p2_slow = 4, .p2_fast = 4 }, | |
282 | }; | |
283 | ||
e4b36699 | 284 | static const intel_limit_t intel_limits_i8xx_lvds = { |
0206e353 | 285 | .dot = { .min = 25000, .max = 350000 }, |
9c333719 | 286 | .vco = { .min = 908000, .max = 1512000 }, |
91dbe5fb | 287 | .n = { .min = 2, .max = 16 }, |
0206e353 AJ |
288 | .m = { .min = 96, .max = 140 }, |
289 | .m1 = { .min = 18, .max = 26 }, | |
290 | .m2 = { .min = 6, .max = 16 }, | |
291 | .p = { .min = 4, .max = 128 }, | |
292 | .p1 = { .min = 1, .max = 6 }, | |
273e27ca EA |
293 | .p2 = { .dot_limit = 165000, |
294 | .p2_slow = 14, .p2_fast = 7 }, | |
e4b36699 | 295 | }; |
273e27ca | 296 | |
e4b36699 | 297 | static const intel_limit_t intel_limits_i9xx_sdvo = { |
0206e353 AJ |
298 | .dot = { .min = 20000, .max = 400000 }, |
299 | .vco = { .min = 1400000, .max = 2800000 }, | |
300 | .n = { .min = 1, .max = 6 }, | |
301 | .m = { .min = 70, .max = 120 }, | |
4f7dfb67 PJ |
302 | .m1 = { .min = 8, .max = 18 }, |
303 | .m2 = { .min = 3, .max = 7 }, | |
0206e353 AJ |
304 | .p = { .min = 5, .max = 80 }, |
305 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
306 | .p2 = { .dot_limit = 200000, |
307 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
308 | }; |
309 | ||
310 | static const intel_limit_t intel_limits_i9xx_lvds = { | |
0206e353 AJ |
311 | .dot = { .min = 20000, .max = 400000 }, |
312 | .vco = { .min = 1400000, .max = 2800000 }, | |
313 | .n = { .min = 1, .max = 6 }, | |
314 | .m = { .min = 70, .max = 120 }, | |
53a7d2d1 PJ |
315 | .m1 = { .min = 8, .max = 18 }, |
316 | .m2 = { .min = 3, .max = 7 }, | |
0206e353 AJ |
317 | .p = { .min = 7, .max = 98 }, |
318 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
319 | .p2 = { .dot_limit = 112000, |
320 | .p2_slow = 14, .p2_fast = 7 }, | |
e4b36699 KP |
321 | }; |
322 | ||
273e27ca | 323 | |
e4b36699 | 324 | static const intel_limit_t intel_limits_g4x_sdvo = { |
273e27ca EA |
325 | .dot = { .min = 25000, .max = 270000 }, |
326 | .vco = { .min = 1750000, .max = 3500000}, | |
327 | .n = { .min = 1, .max = 4 }, | |
328 | .m = { .min = 104, .max = 138 }, | |
329 | .m1 = { .min = 17, .max = 23 }, | |
330 | .m2 = { .min = 5, .max = 11 }, | |
331 | .p = { .min = 10, .max = 30 }, | |
332 | .p1 = { .min = 1, .max = 3}, | |
333 | .p2 = { .dot_limit = 270000, | |
334 | .p2_slow = 10, | |
335 | .p2_fast = 10 | |
044c7c41 | 336 | }, |
e4b36699 KP |
337 | }; |
338 | ||
339 | static const intel_limit_t intel_limits_g4x_hdmi = { | |
273e27ca EA |
340 | .dot = { .min = 22000, .max = 400000 }, |
341 | .vco = { .min = 1750000, .max = 3500000}, | |
342 | .n = { .min = 1, .max = 4 }, | |
343 | .m = { .min = 104, .max = 138 }, | |
344 | .m1 = { .min = 16, .max = 23 }, | |
345 | .m2 = { .min = 5, .max = 11 }, | |
346 | .p = { .min = 5, .max = 80 }, | |
347 | .p1 = { .min = 1, .max = 8}, | |
348 | .p2 = { .dot_limit = 165000, | |
349 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
350 | }; |
351 | ||
352 | static const intel_limit_t intel_limits_g4x_single_channel_lvds = { | |
273e27ca EA |
353 | .dot = { .min = 20000, .max = 115000 }, |
354 | .vco = { .min = 1750000, .max = 3500000 }, | |
355 | .n = { .min = 1, .max = 3 }, | |
356 | .m = { .min = 104, .max = 138 }, | |
357 | .m1 = { .min = 17, .max = 23 }, | |
358 | .m2 = { .min = 5, .max = 11 }, | |
359 | .p = { .min = 28, .max = 112 }, | |
360 | .p1 = { .min = 2, .max = 8 }, | |
361 | .p2 = { .dot_limit = 0, | |
362 | .p2_slow = 14, .p2_fast = 14 | |
044c7c41 | 363 | }, |
e4b36699 KP |
364 | }; |
365 | ||
366 | static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { | |
273e27ca EA |
367 | .dot = { .min = 80000, .max = 224000 }, |
368 | .vco = { .min = 1750000, .max = 3500000 }, | |
369 | .n = { .min = 1, .max = 3 }, | |
370 | .m = { .min = 104, .max = 138 }, | |
371 | .m1 = { .min = 17, .max = 23 }, | |
372 | .m2 = { .min = 5, .max = 11 }, | |
373 | .p = { .min = 14, .max = 42 }, | |
374 | .p1 = { .min = 2, .max = 6 }, | |
375 | .p2 = { .dot_limit = 0, | |
376 | .p2_slow = 7, .p2_fast = 7 | |
044c7c41 | 377 | }, |
e4b36699 KP |
378 | }; |
379 | ||
f2b115e6 | 380 | static const intel_limit_t intel_limits_pineview_sdvo = { |
0206e353 AJ |
381 | .dot = { .min = 20000, .max = 400000}, |
382 | .vco = { .min = 1700000, .max = 3500000 }, | |
273e27ca | 383 | /* Pineview's Ncounter is a ring counter */ |
0206e353 AJ |
384 | .n = { .min = 3, .max = 6 }, |
385 | .m = { .min = 2, .max = 256 }, | |
273e27ca | 386 | /* Pineview only has one combined m divider, which we treat as m2. */ |
0206e353 AJ |
387 | .m1 = { .min = 0, .max = 0 }, |
388 | .m2 = { .min = 0, .max = 254 }, | |
389 | .p = { .min = 5, .max = 80 }, | |
390 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
391 | .p2 = { .dot_limit = 200000, |
392 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
393 | }; |
394 | ||
f2b115e6 | 395 | static const intel_limit_t intel_limits_pineview_lvds = { |
0206e353 AJ |
396 | .dot = { .min = 20000, .max = 400000 }, |
397 | .vco = { .min = 1700000, .max = 3500000 }, | |
398 | .n = { .min = 3, .max = 6 }, | |
399 | .m = { .min = 2, .max = 256 }, | |
400 | .m1 = { .min = 0, .max = 0 }, | |
401 | .m2 = { .min = 0, .max = 254 }, | |
402 | .p = { .min = 7, .max = 112 }, | |
403 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
404 | .p2 = { .dot_limit = 112000, |
405 | .p2_slow = 14, .p2_fast = 14 }, | |
e4b36699 KP |
406 | }; |
407 | ||
273e27ca EA |
408 | /* Ironlake / Sandybridge |
409 | * | |
410 | * We calculate clock using (register_value + 2) for N/M1/M2, so here | |
411 | * the range value for them is (actual_value - 2). | |
412 | */ | |
b91ad0ec | 413 | static const intel_limit_t intel_limits_ironlake_dac = { |
273e27ca EA |
414 | .dot = { .min = 25000, .max = 350000 }, |
415 | .vco = { .min = 1760000, .max = 3510000 }, | |
416 | .n = { .min = 1, .max = 5 }, | |
417 | .m = { .min = 79, .max = 127 }, | |
418 | .m1 = { .min = 12, .max = 22 }, | |
419 | .m2 = { .min = 5, .max = 9 }, | |
420 | .p = { .min = 5, .max = 80 }, | |
421 | .p1 = { .min = 1, .max = 8 }, | |
422 | .p2 = { .dot_limit = 225000, | |
423 | .p2_slow = 10, .p2_fast = 5 }, | |
e4b36699 KP |
424 | }; |
425 | ||
b91ad0ec | 426 | static const intel_limit_t intel_limits_ironlake_single_lvds = { |
273e27ca EA |
427 | .dot = { .min = 25000, .max = 350000 }, |
428 | .vco = { .min = 1760000, .max = 3510000 }, | |
429 | .n = { .min = 1, .max = 3 }, | |
430 | .m = { .min = 79, .max = 118 }, | |
431 | .m1 = { .min = 12, .max = 22 }, | |
432 | .m2 = { .min = 5, .max = 9 }, | |
433 | .p = { .min = 28, .max = 112 }, | |
434 | .p1 = { .min = 2, .max = 8 }, | |
435 | .p2 = { .dot_limit = 225000, | |
436 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
437 | }; |
438 | ||
439 | static const intel_limit_t intel_limits_ironlake_dual_lvds = { | |
273e27ca EA |
440 | .dot = { .min = 25000, .max = 350000 }, |
441 | .vco = { .min = 1760000, .max = 3510000 }, | |
442 | .n = { .min = 1, .max = 3 }, | |
443 | .m = { .min = 79, .max = 127 }, | |
444 | .m1 = { .min = 12, .max = 22 }, | |
445 | .m2 = { .min = 5, .max = 9 }, | |
446 | .p = { .min = 14, .max = 56 }, | |
447 | .p1 = { .min = 2, .max = 8 }, | |
448 | .p2 = { .dot_limit = 225000, | |
449 | .p2_slow = 7, .p2_fast = 7 }, | |
b91ad0ec ZW |
450 | }; |
451 | ||
273e27ca | 452 | /* LVDS 100mhz refclk limits. */ |
b91ad0ec | 453 | static const intel_limit_t intel_limits_ironlake_single_lvds_100m = { |
273e27ca EA |
454 | .dot = { .min = 25000, .max = 350000 }, |
455 | .vco = { .min = 1760000, .max = 3510000 }, | |
456 | .n = { .min = 1, .max = 2 }, | |
457 | .m = { .min = 79, .max = 126 }, | |
458 | .m1 = { .min = 12, .max = 22 }, | |
459 | .m2 = { .min = 5, .max = 9 }, | |
460 | .p = { .min = 28, .max = 112 }, | |
0206e353 | 461 | .p1 = { .min = 2, .max = 8 }, |
273e27ca EA |
462 | .p2 = { .dot_limit = 225000, |
463 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
464 | }; |
465 | ||
466 | static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = { | |
273e27ca EA |
467 | .dot = { .min = 25000, .max = 350000 }, |
468 | .vco = { .min = 1760000, .max = 3510000 }, | |
469 | .n = { .min = 1, .max = 3 }, | |
470 | .m = { .min = 79, .max = 126 }, | |
471 | .m1 = { .min = 12, .max = 22 }, | |
472 | .m2 = { .min = 5, .max = 9 }, | |
473 | .p = { .min = 14, .max = 42 }, | |
0206e353 | 474 | .p1 = { .min = 2, .max = 6 }, |
273e27ca EA |
475 | .p2 = { .dot_limit = 225000, |
476 | .p2_slow = 7, .p2_fast = 7 }, | |
4547668a ZY |
477 | }; |
478 | ||
dc730512 | 479 | static const intel_limit_t intel_limits_vlv = { |
f01b7962 VS |
480 | /* |
481 | * These are the data rate limits (measured in fast clocks) | |
482 | * since those are the strictest limits we have. The fast | |
483 | * clock and actual rate limits are more relaxed, so checking | |
484 | * them would make no difference. | |
485 | */ | |
486 | .dot = { .min = 25000 * 5, .max = 270000 * 5 }, | |
75e53986 | 487 | .vco = { .min = 4000000, .max = 6000000 }, |
a0c4da24 | 488 | .n = { .min = 1, .max = 7 }, |
a0c4da24 JB |
489 | .m1 = { .min = 2, .max = 3 }, |
490 | .m2 = { .min = 11, .max = 156 }, | |
b99ab663 | 491 | .p1 = { .min = 2, .max = 3 }, |
5fdc9c49 | 492 | .p2 = { .p2_slow = 2, .p2_fast = 20 }, /* slow=min, fast=max */ |
a0c4da24 JB |
493 | }; |
494 | ||
ef9348c8 CML |
495 | static const intel_limit_t intel_limits_chv = { |
496 | /* | |
497 | * These are the data rate limits (measured in fast clocks) | |
498 | * since those are the strictest limits we have. The fast | |
499 | * clock and actual rate limits are more relaxed, so checking | |
500 | * them would make no difference. | |
501 | */ | |
502 | .dot = { .min = 25000 * 5, .max = 540000 * 5}, | |
17fe1021 | 503 | .vco = { .min = 4800000, .max = 6480000 }, |
ef9348c8 CML |
504 | .n = { .min = 1, .max = 1 }, |
505 | .m1 = { .min = 2, .max = 2 }, | |
506 | .m2 = { .min = 24 << 22, .max = 175 << 22 }, | |
507 | .p1 = { .min = 2, .max = 4 }, | |
508 | .p2 = { .p2_slow = 1, .p2_fast = 14 }, | |
509 | }; | |
510 | ||
5ab7b0b7 ID |
511 | static const intel_limit_t intel_limits_bxt = { |
512 | /* FIXME: find real dot limits */ | |
513 | .dot = { .min = 0, .max = INT_MAX }, | |
e6292556 | 514 | .vco = { .min = 4800000, .max = 6700000 }, |
5ab7b0b7 ID |
515 | .n = { .min = 1, .max = 1 }, |
516 | .m1 = { .min = 2, .max = 2 }, | |
517 | /* FIXME: find real m2 limits */ | |
518 | .m2 = { .min = 2 << 22, .max = 255 << 22 }, | |
519 | .p1 = { .min = 2, .max = 4 }, | |
520 | .p2 = { .p2_slow = 1, .p2_fast = 20 }, | |
521 | }; | |
522 | ||
cdba954e ACO |
523 | static bool |
524 | needs_modeset(struct drm_crtc_state *state) | |
525 | { | |
fc596660 | 526 | return drm_atomic_crtc_needs_modeset(state); |
cdba954e ACO |
527 | } |
528 | ||
e0638cdf PZ |
529 | /** |
530 | * Returns whether any output on the specified pipe is of the specified type | |
531 | */ | |
4093561b | 532 | bool intel_pipe_has_type(struct intel_crtc *crtc, enum intel_output_type type) |
e0638cdf | 533 | { |
409ee761 | 534 | struct drm_device *dev = crtc->base.dev; |
e0638cdf PZ |
535 | struct intel_encoder *encoder; |
536 | ||
409ee761 | 537 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) |
e0638cdf PZ |
538 | if (encoder->type == type) |
539 | return true; | |
540 | ||
541 | return false; | |
542 | } | |
543 | ||
d0737e1d ACO |
544 | /** |
545 | * Returns whether any output on the specified pipe will have the specified | |
546 | * type after a staged modeset is complete, i.e., the same as | |
547 | * intel_pipe_has_type() but looking at encoder->new_crtc instead of | |
548 | * encoder->crtc. | |
549 | */ | |
a93e255f ACO |
550 | static bool intel_pipe_will_have_type(const struct intel_crtc_state *crtc_state, |
551 | int type) | |
d0737e1d | 552 | { |
a93e255f | 553 | struct drm_atomic_state *state = crtc_state->base.state; |
da3ced29 | 554 | struct drm_connector *connector; |
a93e255f | 555 | struct drm_connector_state *connector_state; |
d0737e1d | 556 | struct intel_encoder *encoder; |
a93e255f ACO |
557 | int i, num_connectors = 0; |
558 | ||
da3ced29 | 559 | for_each_connector_in_state(state, connector, connector_state, i) { |
a93e255f ACO |
560 | if (connector_state->crtc != crtc_state->base.crtc) |
561 | continue; | |
562 | ||
563 | num_connectors++; | |
d0737e1d | 564 | |
a93e255f ACO |
565 | encoder = to_intel_encoder(connector_state->best_encoder); |
566 | if (encoder->type == type) | |
d0737e1d | 567 | return true; |
a93e255f ACO |
568 | } |
569 | ||
570 | WARN_ON(num_connectors == 0); | |
d0737e1d ACO |
571 | |
572 | return false; | |
573 | } | |
574 | ||
dccbea3b ID |
575 | /* |
576 | * Platform specific helpers to calculate the port PLL loopback- (clock.m), | |
577 | * and post-divider (clock.p) values, pre- (clock.vco) and post-divided fast | |
578 | * (clock.dot) clock rates. This fast dot clock is fed to the port's IO logic. | |
579 | * The helpers' return value is the rate of the clock that is fed to the | |
580 | * display engine's pipe which can be the above fast dot clock rate or a | |
581 | * divided-down version of it. | |
582 | */ | |
f2b115e6 | 583 | /* m1 is reserved as 0 in Pineview, n is a ring counter */ |
dccbea3b | 584 | static int pnv_calc_dpll_params(int refclk, intel_clock_t *clock) |
79e53945 | 585 | { |
2177832f SL |
586 | clock->m = clock->m2 + 2; |
587 | clock->p = clock->p1 * clock->p2; | |
ed5ca77e | 588 | if (WARN_ON(clock->n == 0 || clock->p == 0)) |
dccbea3b | 589 | return 0; |
fb03ac01 VS |
590 | clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n); |
591 | clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); | |
dccbea3b ID |
592 | |
593 | return clock->dot; | |
2177832f SL |
594 | } |
595 | ||
7429e9d4 DV |
596 | static uint32_t i9xx_dpll_compute_m(struct dpll *dpll) |
597 | { | |
598 | return 5 * (dpll->m1 + 2) + (dpll->m2 + 2); | |
599 | } | |
600 | ||
dccbea3b | 601 | static int i9xx_calc_dpll_params(int refclk, intel_clock_t *clock) |
2177832f | 602 | { |
7429e9d4 | 603 | clock->m = i9xx_dpll_compute_m(clock); |
79e53945 | 604 | clock->p = clock->p1 * clock->p2; |
ed5ca77e | 605 | if (WARN_ON(clock->n + 2 == 0 || clock->p == 0)) |
dccbea3b | 606 | return 0; |
fb03ac01 VS |
607 | clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n + 2); |
608 | clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); | |
dccbea3b ID |
609 | |
610 | return clock->dot; | |
79e53945 JB |
611 | } |
612 | ||
dccbea3b | 613 | static int vlv_calc_dpll_params(int refclk, intel_clock_t *clock) |
589eca67 ID |
614 | { |
615 | clock->m = clock->m1 * clock->m2; | |
616 | clock->p = clock->p1 * clock->p2; | |
617 | if (WARN_ON(clock->n == 0 || clock->p == 0)) | |
dccbea3b | 618 | return 0; |
589eca67 ID |
619 | clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n); |
620 | clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); | |
dccbea3b ID |
621 | |
622 | return clock->dot / 5; | |
589eca67 ID |
623 | } |
624 | ||
dccbea3b | 625 | int chv_calc_dpll_params(int refclk, intel_clock_t *clock) |
ef9348c8 CML |
626 | { |
627 | clock->m = clock->m1 * clock->m2; | |
628 | clock->p = clock->p1 * clock->p2; | |
629 | if (WARN_ON(clock->n == 0 || clock->p == 0)) | |
dccbea3b | 630 | return 0; |
ef9348c8 CML |
631 | clock->vco = DIV_ROUND_CLOSEST_ULL((uint64_t)refclk * clock->m, |
632 | clock->n << 22); | |
633 | clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p); | |
dccbea3b ID |
634 | |
635 | return clock->dot / 5; | |
ef9348c8 CML |
636 | } |
637 | ||
7c04d1d9 | 638 | #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) |
79e53945 JB |
639 | /** |
640 | * Returns whether the given set of divisors are valid for a given refclk with | |
641 | * the given connectors. | |
642 | */ | |
643 | ||
1b894b59 CW |
644 | static bool intel_PLL_is_valid(struct drm_device *dev, |
645 | const intel_limit_t *limit, | |
646 | const intel_clock_t *clock) | |
79e53945 | 647 | { |
f01b7962 VS |
648 | if (clock->n < limit->n.min || limit->n.max < clock->n) |
649 | INTELPllInvalid("n out of range\n"); | |
79e53945 | 650 | if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1) |
0206e353 | 651 | INTELPllInvalid("p1 out of range\n"); |
79e53945 | 652 | if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2) |
0206e353 | 653 | INTELPllInvalid("m2 out of range\n"); |
79e53945 | 654 | if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1) |
0206e353 | 655 | INTELPllInvalid("m1 out of range\n"); |
f01b7962 | 656 | |
666a4537 WB |
657 | if (!IS_PINEVIEW(dev) && !IS_VALLEYVIEW(dev) && |
658 | !IS_CHERRYVIEW(dev) && !IS_BROXTON(dev)) | |
f01b7962 VS |
659 | if (clock->m1 <= clock->m2) |
660 | INTELPllInvalid("m1 <= m2\n"); | |
661 | ||
666a4537 | 662 | if (!IS_VALLEYVIEW(dev) && !IS_CHERRYVIEW(dev) && !IS_BROXTON(dev)) { |
f01b7962 VS |
663 | if (clock->p < limit->p.min || limit->p.max < clock->p) |
664 | INTELPllInvalid("p out of range\n"); | |
665 | if (clock->m < limit->m.min || limit->m.max < clock->m) | |
666 | INTELPllInvalid("m out of range\n"); | |
667 | } | |
668 | ||
79e53945 | 669 | if (clock->vco < limit->vco.min || limit->vco.max < clock->vco) |
0206e353 | 670 | INTELPllInvalid("vco out of range\n"); |
79e53945 JB |
671 | /* XXX: We may need to be checking "Dot clock" depending on the multiplier, |
672 | * connector, etc., rather than just a single range. | |
673 | */ | |
674 | if (clock->dot < limit->dot.min || limit->dot.max < clock->dot) | |
0206e353 | 675 | INTELPllInvalid("dot out of range\n"); |
79e53945 JB |
676 | |
677 | return true; | |
678 | } | |
679 | ||
3b1429d9 VS |
680 | static int |
681 | i9xx_select_p2_div(const intel_limit_t *limit, | |
682 | const struct intel_crtc_state *crtc_state, | |
683 | int target) | |
79e53945 | 684 | { |
3b1429d9 | 685 | struct drm_device *dev = crtc_state->base.crtc->dev; |
79e53945 | 686 | |
a93e255f | 687 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) { |
79e53945 | 688 | /* |
a210b028 DV |
689 | * For LVDS just rely on its current settings for dual-channel. |
690 | * We haven't figured out how to reliably set up different | |
691 | * single/dual channel state, if we even can. | |
79e53945 | 692 | */ |
1974cad0 | 693 | if (intel_is_dual_link_lvds(dev)) |
3b1429d9 | 694 | return limit->p2.p2_fast; |
79e53945 | 695 | else |
3b1429d9 | 696 | return limit->p2.p2_slow; |
79e53945 JB |
697 | } else { |
698 | if (target < limit->p2.dot_limit) | |
3b1429d9 | 699 | return limit->p2.p2_slow; |
79e53945 | 700 | else |
3b1429d9 | 701 | return limit->p2.p2_fast; |
79e53945 | 702 | } |
3b1429d9 VS |
703 | } |
704 | ||
70e8aa21 ACO |
705 | /* |
706 | * Returns a set of divisors for the desired target clock with the given | |
707 | * refclk, or FALSE. The returned values represent the clock equation: | |
708 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
709 | * | |
710 | * Target and reference clocks are specified in kHz. | |
711 | * | |
712 | * If match_clock is provided, then best_clock P divider must match the P | |
713 | * divider from @match_clock used for LVDS downclocking. | |
714 | */ | |
3b1429d9 VS |
715 | static bool |
716 | i9xx_find_best_dpll(const intel_limit_t *limit, | |
717 | struct intel_crtc_state *crtc_state, | |
718 | int target, int refclk, intel_clock_t *match_clock, | |
719 | intel_clock_t *best_clock) | |
720 | { | |
721 | struct drm_device *dev = crtc_state->base.crtc->dev; | |
722 | intel_clock_t clock; | |
723 | int err = target; | |
79e53945 | 724 | |
0206e353 | 725 | memset(best_clock, 0, sizeof(*best_clock)); |
79e53945 | 726 | |
3b1429d9 VS |
727 | clock.p2 = i9xx_select_p2_div(limit, crtc_state, target); |
728 | ||
42158660 ZY |
729 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
730 | clock.m1++) { | |
731 | for (clock.m2 = limit->m2.min; | |
732 | clock.m2 <= limit->m2.max; clock.m2++) { | |
c0efc387 | 733 | if (clock.m2 >= clock.m1) |
42158660 ZY |
734 | break; |
735 | for (clock.n = limit->n.min; | |
736 | clock.n <= limit->n.max; clock.n++) { | |
737 | for (clock.p1 = limit->p1.min; | |
738 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
739 | int this_err; |
740 | ||
dccbea3b | 741 | i9xx_calc_dpll_params(refclk, &clock); |
ac58c3f0 DV |
742 | if (!intel_PLL_is_valid(dev, limit, |
743 | &clock)) | |
744 | continue; | |
745 | if (match_clock && | |
746 | clock.p != match_clock->p) | |
747 | continue; | |
748 | ||
749 | this_err = abs(clock.dot - target); | |
750 | if (this_err < err) { | |
751 | *best_clock = clock; | |
752 | err = this_err; | |
753 | } | |
754 | } | |
755 | } | |
756 | } | |
757 | } | |
758 | ||
759 | return (err != target); | |
760 | } | |
761 | ||
70e8aa21 ACO |
762 | /* |
763 | * Returns a set of divisors for the desired target clock with the given | |
764 | * refclk, or FALSE. The returned values represent the clock equation: | |
765 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
766 | * | |
767 | * Target and reference clocks are specified in kHz. | |
768 | * | |
769 | * If match_clock is provided, then best_clock P divider must match the P | |
770 | * divider from @match_clock used for LVDS downclocking. | |
771 | */ | |
ac58c3f0 | 772 | static bool |
a93e255f ACO |
773 | pnv_find_best_dpll(const intel_limit_t *limit, |
774 | struct intel_crtc_state *crtc_state, | |
ee9300bb DV |
775 | int target, int refclk, intel_clock_t *match_clock, |
776 | intel_clock_t *best_clock) | |
79e53945 | 777 | { |
3b1429d9 | 778 | struct drm_device *dev = crtc_state->base.crtc->dev; |
79e53945 | 779 | intel_clock_t clock; |
79e53945 JB |
780 | int err = target; |
781 | ||
0206e353 | 782 | memset(best_clock, 0, sizeof(*best_clock)); |
79e53945 | 783 | |
3b1429d9 VS |
784 | clock.p2 = i9xx_select_p2_div(limit, crtc_state, target); |
785 | ||
42158660 ZY |
786 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
787 | clock.m1++) { | |
788 | for (clock.m2 = limit->m2.min; | |
789 | clock.m2 <= limit->m2.max; clock.m2++) { | |
42158660 ZY |
790 | for (clock.n = limit->n.min; |
791 | clock.n <= limit->n.max; clock.n++) { | |
792 | for (clock.p1 = limit->p1.min; | |
793 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
794 | int this_err; |
795 | ||
dccbea3b | 796 | pnv_calc_dpll_params(refclk, &clock); |
1b894b59 CW |
797 | if (!intel_PLL_is_valid(dev, limit, |
798 | &clock)) | |
79e53945 | 799 | continue; |
cec2f356 SP |
800 | if (match_clock && |
801 | clock.p != match_clock->p) | |
802 | continue; | |
79e53945 JB |
803 | |
804 | this_err = abs(clock.dot - target); | |
805 | if (this_err < err) { | |
806 | *best_clock = clock; | |
807 | err = this_err; | |
808 | } | |
809 | } | |
810 | } | |
811 | } | |
812 | } | |
813 | ||
814 | return (err != target); | |
815 | } | |
816 | ||
997c030c ACO |
817 | /* |
818 | * Returns a set of divisors for the desired target clock with the given | |
819 | * refclk, or FALSE. The returned values represent the clock equation: | |
820 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
70e8aa21 ACO |
821 | * |
822 | * Target and reference clocks are specified in kHz. | |
823 | * | |
824 | * If match_clock is provided, then best_clock P divider must match the P | |
825 | * divider from @match_clock used for LVDS downclocking. | |
997c030c | 826 | */ |
d4906093 | 827 | static bool |
a93e255f ACO |
828 | g4x_find_best_dpll(const intel_limit_t *limit, |
829 | struct intel_crtc_state *crtc_state, | |
ee9300bb DV |
830 | int target, int refclk, intel_clock_t *match_clock, |
831 | intel_clock_t *best_clock) | |
d4906093 | 832 | { |
3b1429d9 | 833 | struct drm_device *dev = crtc_state->base.crtc->dev; |
d4906093 ML |
834 | intel_clock_t clock; |
835 | int max_n; | |
3b1429d9 | 836 | bool found = false; |
6ba770dc AJ |
837 | /* approximately equals target * 0.00585 */ |
838 | int err_most = (target >> 8) + (target >> 9); | |
d4906093 ML |
839 | |
840 | memset(best_clock, 0, sizeof(*best_clock)); | |
3b1429d9 VS |
841 | |
842 | clock.p2 = i9xx_select_p2_div(limit, crtc_state, target); | |
843 | ||
d4906093 | 844 | max_n = limit->n.max; |
f77f13e2 | 845 | /* based on hardware requirement, prefer smaller n to precision */ |
d4906093 | 846 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
f77f13e2 | 847 | /* based on hardware requirement, prefere larger m1,m2 */ |
d4906093 ML |
848 | for (clock.m1 = limit->m1.max; |
849 | clock.m1 >= limit->m1.min; clock.m1--) { | |
850 | for (clock.m2 = limit->m2.max; | |
851 | clock.m2 >= limit->m2.min; clock.m2--) { | |
852 | for (clock.p1 = limit->p1.max; | |
853 | clock.p1 >= limit->p1.min; clock.p1--) { | |
854 | int this_err; | |
855 | ||
dccbea3b | 856 | i9xx_calc_dpll_params(refclk, &clock); |
1b894b59 CW |
857 | if (!intel_PLL_is_valid(dev, limit, |
858 | &clock)) | |
d4906093 | 859 | continue; |
1b894b59 CW |
860 | |
861 | this_err = abs(clock.dot - target); | |
d4906093 ML |
862 | if (this_err < err_most) { |
863 | *best_clock = clock; | |
864 | err_most = this_err; | |
865 | max_n = clock.n; | |
866 | found = true; | |
867 | } | |
868 | } | |
869 | } | |
870 | } | |
871 | } | |
2c07245f ZW |
872 | return found; |
873 | } | |
874 | ||
d5dd62bd ID |
875 | /* |
876 | * Check if the calculated PLL configuration is more optimal compared to the | |
877 | * best configuration and error found so far. Return the calculated error. | |
878 | */ | |
879 | static bool vlv_PLL_is_optimal(struct drm_device *dev, int target_freq, | |
880 | const intel_clock_t *calculated_clock, | |
881 | const intel_clock_t *best_clock, | |
882 | unsigned int best_error_ppm, | |
883 | unsigned int *error_ppm) | |
884 | { | |
9ca3ba01 ID |
885 | /* |
886 | * For CHV ignore the error and consider only the P value. | |
887 | * Prefer a bigger P value based on HW requirements. | |
888 | */ | |
889 | if (IS_CHERRYVIEW(dev)) { | |
890 | *error_ppm = 0; | |
891 | ||
892 | return calculated_clock->p > best_clock->p; | |
893 | } | |
894 | ||
24be4e46 ID |
895 | if (WARN_ON_ONCE(!target_freq)) |
896 | return false; | |
897 | ||
d5dd62bd ID |
898 | *error_ppm = div_u64(1000000ULL * |
899 | abs(target_freq - calculated_clock->dot), | |
900 | target_freq); | |
901 | /* | |
902 | * Prefer a better P value over a better (smaller) error if the error | |
903 | * is small. Ensure this preference for future configurations too by | |
904 | * setting the error to 0. | |
905 | */ | |
906 | if (*error_ppm < 100 && calculated_clock->p > best_clock->p) { | |
907 | *error_ppm = 0; | |
908 | ||
909 | return true; | |
910 | } | |
911 | ||
912 | return *error_ppm + 10 < best_error_ppm; | |
913 | } | |
914 | ||
65b3d6a9 ACO |
915 | /* |
916 | * Returns a set of divisors for the desired target clock with the given | |
917 | * refclk, or FALSE. The returned values represent the clock equation: | |
918 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
919 | */ | |
a0c4da24 | 920 | static bool |
a93e255f ACO |
921 | vlv_find_best_dpll(const intel_limit_t *limit, |
922 | struct intel_crtc_state *crtc_state, | |
ee9300bb DV |
923 | int target, int refclk, intel_clock_t *match_clock, |
924 | intel_clock_t *best_clock) | |
a0c4da24 | 925 | { |
a93e255f | 926 | struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); |
a919ff14 | 927 | struct drm_device *dev = crtc->base.dev; |
6b4bf1c4 | 928 | intel_clock_t clock; |
69e4f900 | 929 | unsigned int bestppm = 1000000; |
27e639bf VS |
930 | /* min update 19.2 MHz */ |
931 | int max_n = min(limit->n.max, refclk / 19200); | |
49e497ef | 932 | bool found = false; |
a0c4da24 | 933 | |
6b4bf1c4 VS |
934 | target *= 5; /* fast clock */ |
935 | ||
936 | memset(best_clock, 0, sizeof(*best_clock)); | |
a0c4da24 JB |
937 | |
938 | /* based on hardware requirement, prefer smaller n to precision */ | |
27e639bf | 939 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
811bbf05 | 940 | for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) { |
889059d8 | 941 | for (clock.p2 = limit->p2.p2_fast; clock.p2 >= limit->p2.p2_slow; |
c1a9ae43 | 942 | clock.p2 -= clock.p2 > 10 ? 2 : 1) { |
6b4bf1c4 | 943 | clock.p = clock.p1 * clock.p2; |
a0c4da24 | 944 | /* based on hardware requirement, prefer bigger m1,m2 values */ |
6b4bf1c4 | 945 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; clock.m1++) { |
d5dd62bd | 946 | unsigned int ppm; |
69e4f900 | 947 | |
6b4bf1c4 VS |
948 | clock.m2 = DIV_ROUND_CLOSEST(target * clock.p * clock.n, |
949 | refclk * clock.m1); | |
950 | ||
dccbea3b | 951 | vlv_calc_dpll_params(refclk, &clock); |
43b0ac53 | 952 | |
f01b7962 VS |
953 | if (!intel_PLL_is_valid(dev, limit, |
954 | &clock)) | |
43b0ac53 VS |
955 | continue; |
956 | ||
d5dd62bd ID |
957 | if (!vlv_PLL_is_optimal(dev, target, |
958 | &clock, | |
959 | best_clock, | |
960 | bestppm, &ppm)) | |
961 | continue; | |
6b4bf1c4 | 962 | |
d5dd62bd ID |
963 | *best_clock = clock; |
964 | bestppm = ppm; | |
965 | found = true; | |
a0c4da24 JB |
966 | } |
967 | } | |
968 | } | |
969 | } | |
a0c4da24 | 970 | |
49e497ef | 971 | return found; |
a0c4da24 | 972 | } |
a4fc5ed6 | 973 | |
65b3d6a9 ACO |
974 | /* |
975 | * Returns a set of divisors for the desired target clock with the given | |
976 | * refclk, or FALSE. The returned values represent the clock equation: | |
977 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
978 | */ | |
ef9348c8 | 979 | static bool |
a93e255f ACO |
980 | chv_find_best_dpll(const intel_limit_t *limit, |
981 | struct intel_crtc_state *crtc_state, | |
ef9348c8 CML |
982 | int target, int refclk, intel_clock_t *match_clock, |
983 | intel_clock_t *best_clock) | |
984 | { | |
a93e255f | 985 | struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); |
a919ff14 | 986 | struct drm_device *dev = crtc->base.dev; |
9ca3ba01 | 987 | unsigned int best_error_ppm; |
ef9348c8 CML |
988 | intel_clock_t clock; |
989 | uint64_t m2; | |
990 | int found = false; | |
991 | ||
992 | memset(best_clock, 0, sizeof(*best_clock)); | |
9ca3ba01 | 993 | best_error_ppm = 1000000; |
ef9348c8 CML |
994 | |
995 | /* | |
996 | * Based on hardware doc, the n always set to 1, and m1 always | |
997 | * set to 2. If requires to support 200Mhz refclk, we need to | |
998 | * revisit this because n may not 1 anymore. | |
999 | */ | |
1000 | clock.n = 1, clock.m1 = 2; | |
1001 | target *= 5; /* fast clock */ | |
1002 | ||
1003 | for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) { | |
1004 | for (clock.p2 = limit->p2.p2_fast; | |
1005 | clock.p2 >= limit->p2.p2_slow; | |
1006 | clock.p2 -= clock.p2 > 10 ? 2 : 1) { | |
9ca3ba01 | 1007 | unsigned int error_ppm; |
ef9348c8 CML |
1008 | |
1009 | clock.p = clock.p1 * clock.p2; | |
1010 | ||
1011 | m2 = DIV_ROUND_CLOSEST_ULL(((uint64_t)target * clock.p * | |
1012 | clock.n) << 22, refclk * clock.m1); | |
1013 | ||
1014 | if (m2 > INT_MAX/clock.m1) | |
1015 | continue; | |
1016 | ||
1017 | clock.m2 = m2; | |
1018 | ||
dccbea3b | 1019 | chv_calc_dpll_params(refclk, &clock); |
ef9348c8 CML |
1020 | |
1021 | if (!intel_PLL_is_valid(dev, limit, &clock)) | |
1022 | continue; | |
1023 | ||
9ca3ba01 ID |
1024 | if (!vlv_PLL_is_optimal(dev, target, &clock, best_clock, |
1025 | best_error_ppm, &error_ppm)) | |
1026 | continue; | |
1027 | ||
1028 | *best_clock = clock; | |
1029 | best_error_ppm = error_ppm; | |
1030 | found = true; | |
ef9348c8 CML |
1031 | } |
1032 | } | |
1033 | ||
1034 | return found; | |
1035 | } | |
1036 | ||
5ab7b0b7 ID |
1037 | bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state, int target_clock, |
1038 | intel_clock_t *best_clock) | |
1039 | { | |
65b3d6a9 ACO |
1040 | int refclk = 100000; |
1041 | const intel_limit_t *limit = &intel_limits_bxt; | |
5ab7b0b7 | 1042 | |
65b3d6a9 | 1043 | return chv_find_best_dpll(limit, crtc_state, |
5ab7b0b7 ID |
1044 | target_clock, refclk, NULL, best_clock); |
1045 | } | |
1046 | ||
20ddf665 VS |
1047 | bool intel_crtc_active(struct drm_crtc *crtc) |
1048 | { | |
1049 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1050 | ||
1051 | /* Be paranoid as we can arrive here with only partial | |
1052 | * state retrieved from the hardware during setup. | |
1053 | * | |
241bfc38 | 1054 | * We can ditch the adjusted_mode.crtc_clock check as soon |
20ddf665 VS |
1055 | * as Haswell has gained clock readout/fastboot support. |
1056 | * | |
66e514c1 | 1057 | * We can ditch the crtc->primary->fb check as soon as we can |
20ddf665 | 1058 | * properly reconstruct framebuffers. |
c3d1f436 MR |
1059 | * |
1060 | * FIXME: The intel_crtc->active here should be switched to | |
1061 | * crtc->state->active once we have proper CRTC states wired up | |
1062 | * for atomic. | |
20ddf665 | 1063 | */ |
c3d1f436 | 1064 | return intel_crtc->active && crtc->primary->state->fb && |
6e3c9717 | 1065 | intel_crtc->config->base.adjusted_mode.crtc_clock; |
20ddf665 VS |
1066 | } |
1067 | ||
a5c961d1 PZ |
1068 | enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv, |
1069 | enum pipe pipe) | |
1070 | { | |
1071 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
1072 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1073 | ||
6e3c9717 | 1074 | return intel_crtc->config->cpu_transcoder; |
a5c961d1 PZ |
1075 | } |
1076 | ||
fbf49ea2 VS |
1077 | static bool pipe_dsl_stopped(struct drm_device *dev, enum pipe pipe) |
1078 | { | |
1079 | struct drm_i915_private *dev_priv = dev->dev_private; | |
f0f59a00 | 1080 | i915_reg_t reg = PIPEDSL(pipe); |
fbf49ea2 VS |
1081 | u32 line1, line2; |
1082 | u32 line_mask; | |
1083 | ||
1084 | if (IS_GEN2(dev)) | |
1085 | line_mask = DSL_LINEMASK_GEN2; | |
1086 | else | |
1087 | line_mask = DSL_LINEMASK_GEN3; | |
1088 | ||
1089 | line1 = I915_READ(reg) & line_mask; | |
6adfb1ef | 1090 | msleep(5); |
fbf49ea2 VS |
1091 | line2 = I915_READ(reg) & line_mask; |
1092 | ||
1093 | return line1 == line2; | |
1094 | } | |
1095 | ||
ab7ad7f6 KP |
1096 | /* |
1097 | * intel_wait_for_pipe_off - wait for pipe to turn off | |
575f7ab7 | 1098 | * @crtc: crtc whose pipe to wait for |
9d0498a2 JB |
1099 | * |
1100 | * After disabling a pipe, we can't wait for vblank in the usual way, | |
1101 | * spinning on the vblank interrupt status bit, since we won't actually | |
1102 | * see an interrupt when the pipe is disabled. | |
1103 | * | |
ab7ad7f6 KP |
1104 | * On Gen4 and above: |
1105 | * wait for the pipe register state bit to turn off | |
1106 | * | |
1107 | * Otherwise: | |
1108 | * wait for the display line value to settle (it usually | |
1109 | * ends up stopping at the start of the next frame). | |
58e10eb9 | 1110 | * |
9d0498a2 | 1111 | */ |
575f7ab7 | 1112 | static void intel_wait_for_pipe_off(struct intel_crtc *crtc) |
9d0498a2 | 1113 | { |
575f7ab7 | 1114 | struct drm_device *dev = crtc->base.dev; |
9d0498a2 | 1115 | struct drm_i915_private *dev_priv = dev->dev_private; |
6e3c9717 | 1116 | enum transcoder cpu_transcoder = crtc->config->cpu_transcoder; |
575f7ab7 | 1117 | enum pipe pipe = crtc->pipe; |
ab7ad7f6 KP |
1118 | |
1119 | if (INTEL_INFO(dev)->gen >= 4) { | |
f0f59a00 | 1120 | i915_reg_t reg = PIPECONF(cpu_transcoder); |
ab7ad7f6 KP |
1121 | |
1122 | /* Wait for the Pipe State to go off */ | |
58e10eb9 CW |
1123 | if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0, |
1124 | 100)) | |
284637d9 | 1125 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 1126 | } else { |
ab7ad7f6 | 1127 | /* Wait for the display line to settle */ |
fbf49ea2 | 1128 | if (wait_for(pipe_dsl_stopped(dev, pipe), 100)) |
284637d9 | 1129 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 1130 | } |
79e53945 JB |
1131 | } |
1132 | ||
b24e7179 | 1133 | /* Only for pre-ILK configs */ |
55607e8a DV |
1134 | void assert_pll(struct drm_i915_private *dev_priv, |
1135 | enum pipe pipe, bool state) | |
b24e7179 | 1136 | { |
b24e7179 JB |
1137 | u32 val; |
1138 | bool cur_state; | |
1139 | ||
649636ef | 1140 | val = I915_READ(DPLL(pipe)); |
b24e7179 | 1141 | cur_state = !!(val & DPLL_VCO_ENABLE); |
e2c719b7 | 1142 | I915_STATE_WARN(cur_state != state, |
b24e7179 | 1143 | "PLL state assertion failure (expected %s, current %s)\n", |
87ad3212 | 1144 | onoff(state), onoff(cur_state)); |
b24e7179 | 1145 | } |
b24e7179 | 1146 | |
23538ef1 | 1147 | /* XXX: the dsi pll is shared between MIPI DSI ports */ |
8563b1e8 | 1148 | void assert_dsi_pll(struct drm_i915_private *dev_priv, bool state) |
23538ef1 JN |
1149 | { |
1150 | u32 val; | |
1151 | bool cur_state; | |
1152 | ||
a580516d | 1153 | mutex_lock(&dev_priv->sb_lock); |
23538ef1 | 1154 | val = vlv_cck_read(dev_priv, CCK_REG_DSI_PLL_CONTROL); |
a580516d | 1155 | mutex_unlock(&dev_priv->sb_lock); |
23538ef1 JN |
1156 | |
1157 | cur_state = val & DSI_PLL_VCO_EN; | |
e2c719b7 | 1158 | I915_STATE_WARN(cur_state != state, |
23538ef1 | 1159 | "DSI PLL state assertion failure (expected %s, current %s)\n", |
87ad3212 | 1160 | onoff(state), onoff(cur_state)); |
23538ef1 | 1161 | } |
040484af JB |
1162 | |
1163 | static void assert_fdi_tx(struct drm_i915_private *dev_priv, | |
1164 | enum pipe pipe, bool state) | |
1165 | { | |
040484af | 1166 | bool cur_state; |
ad80a810 PZ |
1167 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1168 | pipe); | |
040484af | 1169 | |
2d1fe073 | 1170 | if (HAS_DDI(dev_priv)) { |
affa9354 | 1171 | /* DDI does not have a specific FDI_TX register */ |
649636ef | 1172 | u32 val = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)); |
ad80a810 | 1173 | cur_state = !!(val & TRANS_DDI_FUNC_ENABLE); |
bf507ef7 | 1174 | } else { |
649636ef | 1175 | u32 val = I915_READ(FDI_TX_CTL(pipe)); |
bf507ef7 ED |
1176 | cur_state = !!(val & FDI_TX_ENABLE); |
1177 | } | |
e2c719b7 | 1178 | I915_STATE_WARN(cur_state != state, |
040484af | 1179 | "FDI TX state assertion failure (expected %s, current %s)\n", |
87ad3212 | 1180 | onoff(state), onoff(cur_state)); |
040484af JB |
1181 | } |
1182 | #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true) | |
1183 | #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false) | |
1184 | ||
1185 | static void assert_fdi_rx(struct drm_i915_private *dev_priv, | |
1186 | enum pipe pipe, bool state) | |
1187 | { | |
040484af JB |
1188 | u32 val; |
1189 | bool cur_state; | |
1190 | ||
649636ef | 1191 | val = I915_READ(FDI_RX_CTL(pipe)); |
d63fa0dc | 1192 | cur_state = !!(val & FDI_RX_ENABLE); |
e2c719b7 | 1193 | I915_STATE_WARN(cur_state != state, |
040484af | 1194 | "FDI RX state assertion failure (expected %s, current %s)\n", |
87ad3212 | 1195 | onoff(state), onoff(cur_state)); |
040484af JB |
1196 | } |
1197 | #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true) | |
1198 | #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false) | |
1199 | ||
1200 | static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv, | |
1201 | enum pipe pipe) | |
1202 | { | |
040484af JB |
1203 | u32 val; |
1204 | ||
1205 | /* ILK FDI PLL is always enabled */ | |
2d1fe073 | 1206 | if (INTEL_INFO(dev_priv)->gen == 5) |
040484af JB |
1207 | return; |
1208 | ||
bf507ef7 | 1209 | /* On Haswell, DDI ports are responsible for the FDI PLL setup */ |
2d1fe073 | 1210 | if (HAS_DDI(dev_priv)) |
bf507ef7 ED |
1211 | return; |
1212 | ||
649636ef | 1213 | val = I915_READ(FDI_TX_CTL(pipe)); |
e2c719b7 | 1214 | I915_STATE_WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n"); |
040484af JB |
1215 | } |
1216 | ||
55607e8a DV |
1217 | void assert_fdi_rx_pll(struct drm_i915_private *dev_priv, |
1218 | enum pipe pipe, bool state) | |
040484af | 1219 | { |
040484af | 1220 | u32 val; |
55607e8a | 1221 | bool cur_state; |
040484af | 1222 | |
649636ef | 1223 | val = I915_READ(FDI_RX_CTL(pipe)); |
55607e8a | 1224 | cur_state = !!(val & FDI_RX_PLL_ENABLE); |
e2c719b7 | 1225 | I915_STATE_WARN(cur_state != state, |
55607e8a | 1226 | "FDI RX PLL assertion failure (expected %s, current %s)\n", |
87ad3212 | 1227 | onoff(state), onoff(cur_state)); |
040484af JB |
1228 | } |
1229 | ||
b680c37a DV |
1230 | void assert_panel_unlocked(struct drm_i915_private *dev_priv, |
1231 | enum pipe pipe) | |
ea0760cf | 1232 | { |
bedd4dba | 1233 | struct drm_device *dev = dev_priv->dev; |
f0f59a00 | 1234 | i915_reg_t pp_reg; |
ea0760cf JB |
1235 | u32 val; |
1236 | enum pipe panel_pipe = PIPE_A; | |
0de3b485 | 1237 | bool locked = true; |
ea0760cf | 1238 | |
bedd4dba JN |
1239 | if (WARN_ON(HAS_DDI(dev))) |
1240 | return; | |
1241 | ||
1242 | if (HAS_PCH_SPLIT(dev)) { | |
1243 | u32 port_sel; | |
1244 | ||
ea0760cf | 1245 | pp_reg = PCH_PP_CONTROL; |
bedd4dba JN |
1246 | port_sel = I915_READ(PCH_PP_ON_DELAYS) & PANEL_PORT_SELECT_MASK; |
1247 | ||
1248 | if (port_sel == PANEL_PORT_SELECT_LVDS && | |
1249 | I915_READ(PCH_LVDS) & LVDS_PIPEB_SELECT) | |
1250 | panel_pipe = PIPE_B; | |
1251 | /* XXX: else fix for eDP */ | |
666a4537 | 1252 | } else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { |
bedd4dba JN |
1253 | /* presumably write lock depends on pipe, not port select */ |
1254 | pp_reg = VLV_PIPE_PP_CONTROL(pipe); | |
1255 | panel_pipe = pipe; | |
ea0760cf JB |
1256 | } else { |
1257 | pp_reg = PP_CONTROL; | |
bedd4dba JN |
1258 | if (I915_READ(LVDS) & LVDS_PIPEB_SELECT) |
1259 | panel_pipe = PIPE_B; | |
ea0760cf JB |
1260 | } |
1261 | ||
1262 | val = I915_READ(pp_reg); | |
1263 | if (!(val & PANEL_POWER_ON) || | |
ec49ba2d | 1264 | ((val & PANEL_UNLOCK_MASK) == PANEL_UNLOCK_REGS)) |
ea0760cf JB |
1265 | locked = false; |
1266 | ||
e2c719b7 | 1267 | I915_STATE_WARN(panel_pipe == pipe && locked, |
ea0760cf | 1268 | "panel assertion failure, pipe %c regs locked\n", |
9db4a9c7 | 1269 | pipe_name(pipe)); |
ea0760cf JB |
1270 | } |
1271 | ||
93ce0ba6 JN |
1272 | static void assert_cursor(struct drm_i915_private *dev_priv, |
1273 | enum pipe pipe, bool state) | |
1274 | { | |
1275 | struct drm_device *dev = dev_priv->dev; | |
1276 | bool cur_state; | |
1277 | ||
d9d82081 | 1278 | if (IS_845G(dev) || IS_I865G(dev)) |
0b87c24e | 1279 | cur_state = I915_READ(CURCNTR(PIPE_A)) & CURSOR_ENABLE; |
d9d82081 | 1280 | else |
5efb3e28 | 1281 | cur_state = I915_READ(CURCNTR(pipe)) & CURSOR_MODE; |
93ce0ba6 | 1282 | |
e2c719b7 | 1283 | I915_STATE_WARN(cur_state != state, |
93ce0ba6 | 1284 | "cursor on pipe %c assertion failure (expected %s, current %s)\n", |
87ad3212 | 1285 | pipe_name(pipe), onoff(state), onoff(cur_state)); |
93ce0ba6 JN |
1286 | } |
1287 | #define assert_cursor_enabled(d, p) assert_cursor(d, p, true) | |
1288 | #define assert_cursor_disabled(d, p) assert_cursor(d, p, false) | |
1289 | ||
b840d907 JB |
1290 | void assert_pipe(struct drm_i915_private *dev_priv, |
1291 | enum pipe pipe, bool state) | |
b24e7179 | 1292 | { |
63d7bbe9 | 1293 | bool cur_state; |
702e7a56 PZ |
1294 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1295 | pipe); | |
4feed0eb | 1296 | enum intel_display_power_domain power_domain; |
b24e7179 | 1297 | |
b6b5d049 VS |
1298 | /* if we need the pipe quirk it must be always on */ |
1299 | if ((pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || | |
1300 | (pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
8e636784 DV |
1301 | state = true; |
1302 | ||
4feed0eb ID |
1303 | power_domain = POWER_DOMAIN_TRANSCODER(cpu_transcoder); |
1304 | if (intel_display_power_get_if_enabled(dev_priv, power_domain)) { | |
649636ef | 1305 | u32 val = I915_READ(PIPECONF(cpu_transcoder)); |
69310161 | 1306 | cur_state = !!(val & PIPECONF_ENABLE); |
4feed0eb ID |
1307 | |
1308 | intel_display_power_put(dev_priv, power_domain); | |
1309 | } else { | |
1310 | cur_state = false; | |
69310161 PZ |
1311 | } |
1312 | ||
e2c719b7 | 1313 | I915_STATE_WARN(cur_state != state, |
63d7bbe9 | 1314 | "pipe %c assertion failure (expected %s, current %s)\n", |
87ad3212 | 1315 | pipe_name(pipe), onoff(state), onoff(cur_state)); |
b24e7179 JB |
1316 | } |
1317 | ||
931872fc CW |
1318 | static void assert_plane(struct drm_i915_private *dev_priv, |
1319 | enum plane plane, bool state) | |
b24e7179 | 1320 | { |
b24e7179 | 1321 | u32 val; |
931872fc | 1322 | bool cur_state; |
b24e7179 | 1323 | |
649636ef | 1324 | val = I915_READ(DSPCNTR(plane)); |
931872fc | 1325 | cur_state = !!(val & DISPLAY_PLANE_ENABLE); |
e2c719b7 | 1326 | I915_STATE_WARN(cur_state != state, |
931872fc | 1327 | "plane %c assertion failure (expected %s, current %s)\n", |
87ad3212 | 1328 | plane_name(plane), onoff(state), onoff(cur_state)); |
b24e7179 JB |
1329 | } |
1330 | ||
931872fc CW |
1331 | #define assert_plane_enabled(d, p) assert_plane(d, p, true) |
1332 | #define assert_plane_disabled(d, p) assert_plane(d, p, false) | |
1333 | ||
b24e7179 JB |
1334 | static void assert_planes_disabled(struct drm_i915_private *dev_priv, |
1335 | enum pipe pipe) | |
1336 | { | |
653e1026 | 1337 | struct drm_device *dev = dev_priv->dev; |
649636ef | 1338 | int i; |
b24e7179 | 1339 | |
653e1026 VS |
1340 | /* Primary planes are fixed to pipes on gen4+ */ |
1341 | if (INTEL_INFO(dev)->gen >= 4) { | |
649636ef | 1342 | u32 val = I915_READ(DSPCNTR(pipe)); |
e2c719b7 | 1343 | I915_STATE_WARN(val & DISPLAY_PLANE_ENABLE, |
28c05794 AJ |
1344 | "plane %c assertion failure, should be disabled but not\n", |
1345 | plane_name(pipe)); | |
19ec1358 | 1346 | return; |
28c05794 | 1347 | } |
19ec1358 | 1348 | |
b24e7179 | 1349 | /* Need to check both planes against the pipe */ |
055e393f | 1350 | for_each_pipe(dev_priv, i) { |
649636ef VS |
1351 | u32 val = I915_READ(DSPCNTR(i)); |
1352 | enum pipe cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >> | |
b24e7179 | 1353 | DISPPLANE_SEL_PIPE_SHIFT; |
e2c719b7 | 1354 | I915_STATE_WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe, |
9db4a9c7 JB |
1355 | "plane %c assertion failure, should be off on pipe %c but is still active\n", |
1356 | plane_name(i), pipe_name(pipe)); | |
b24e7179 JB |
1357 | } |
1358 | } | |
1359 | ||
19332d7a JB |
1360 | static void assert_sprites_disabled(struct drm_i915_private *dev_priv, |
1361 | enum pipe pipe) | |
1362 | { | |
20674eef | 1363 | struct drm_device *dev = dev_priv->dev; |
649636ef | 1364 | int sprite; |
19332d7a | 1365 | |
7feb8b88 | 1366 | if (INTEL_INFO(dev)->gen >= 9) { |
3bdcfc0c | 1367 | for_each_sprite(dev_priv, pipe, sprite) { |
649636ef | 1368 | u32 val = I915_READ(PLANE_CTL(pipe, sprite)); |
e2c719b7 | 1369 | I915_STATE_WARN(val & PLANE_CTL_ENABLE, |
7feb8b88 DL |
1370 | "plane %d assertion failure, should be off on pipe %c but is still active\n", |
1371 | sprite, pipe_name(pipe)); | |
1372 | } | |
666a4537 | 1373 | } else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { |
3bdcfc0c | 1374 | for_each_sprite(dev_priv, pipe, sprite) { |
649636ef | 1375 | u32 val = I915_READ(SPCNTR(pipe, sprite)); |
e2c719b7 | 1376 | I915_STATE_WARN(val & SP_ENABLE, |
20674eef | 1377 | "sprite %c assertion failure, should be off on pipe %c but is still active\n", |
1fe47785 | 1378 | sprite_name(pipe, sprite), pipe_name(pipe)); |
20674eef VS |
1379 | } |
1380 | } else if (INTEL_INFO(dev)->gen >= 7) { | |
649636ef | 1381 | u32 val = I915_READ(SPRCTL(pipe)); |
e2c719b7 | 1382 | I915_STATE_WARN(val & SPRITE_ENABLE, |
06da8da2 | 1383 | "sprite %c assertion failure, should be off on pipe %c but is still active\n", |
20674eef VS |
1384 | plane_name(pipe), pipe_name(pipe)); |
1385 | } else if (INTEL_INFO(dev)->gen >= 5) { | |
649636ef | 1386 | u32 val = I915_READ(DVSCNTR(pipe)); |
e2c719b7 | 1387 | I915_STATE_WARN(val & DVS_ENABLE, |
06da8da2 | 1388 | "sprite %c assertion failure, should be off on pipe %c but is still active\n", |
20674eef | 1389 | plane_name(pipe), pipe_name(pipe)); |
19332d7a JB |
1390 | } |
1391 | } | |
1392 | ||
08c71e5e VS |
1393 | static void assert_vblank_disabled(struct drm_crtc *crtc) |
1394 | { | |
e2c719b7 | 1395 | if (I915_STATE_WARN_ON(drm_crtc_vblank_get(crtc) == 0)) |
08c71e5e VS |
1396 | drm_crtc_vblank_put(crtc); |
1397 | } | |
1398 | ||
7abd4b35 ACO |
1399 | void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv, |
1400 | enum pipe pipe) | |
92f2584a | 1401 | { |
92f2584a JB |
1402 | u32 val; |
1403 | bool enabled; | |
1404 | ||
649636ef | 1405 | val = I915_READ(PCH_TRANSCONF(pipe)); |
92f2584a | 1406 | enabled = !!(val & TRANS_ENABLE); |
e2c719b7 | 1407 | I915_STATE_WARN(enabled, |
9db4a9c7 JB |
1408 | "transcoder assertion failed, should be off on pipe %c but is still active\n", |
1409 | pipe_name(pipe)); | |
92f2584a JB |
1410 | } |
1411 | ||
4e634389 KP |
1412 | static bool dp_pipe_enabled(struct drm_i915_private *dev_priv, |
1413 | enum pipe pipe, u32 port_sel, u32 val) | |
f0575e92 KP |
1414 | { |
1415 | if ((val & DP_PORT_EN) == 0) | |
1416 | return false; | |
1417 | ||
2d1fe073 | 1418 | if (HAS_PCH_CPT(dev_priv)) { |
f0f59a00 | 1419 | u32 trans_dp_ctl = I915_READ(TRANS_DP_CTL(pipe)); |
f0575e92 KP |
1420 | if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel) |
1421 | return false; | |
2d1fe073 | 1422 | } else if (IS_CHERRYVIEW(dev_priv)) { |
44f37d1f CML |
1423 | if ((val & DP_PIPE_MASK_CHV) != DP_PIPE_SELECT_CHV(pipe)) |
1424 | return false; | |
f0575e92 KP |
1425 | } else { |
1426 | if ((val & DP_PIPE_MASK) != (pipe << 30)) | |
1427 | return false; | |
1428 | } | |
1429 | return true; | |
1430 | } | |
1431 | ||
1519b995 KP |
1432 | static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv, |
1433 | enum pipe pipe, u32 val) | |
1434 | { | |
dc0fa718 | 1435 | if ((val & SDVO_ENABLE) == 0) |
1519b995 KP |
1436 | return false; |
1437 | ||
2d1fe073 | 1438 | if (HAS_PCH_CPT(dev_priv)) { |
dc0fa718 | 1439 | if ((val & SDVO_PIPE_SEL_MASK_CPT) != SDVO_PIPE_SEL_CPT(pipe)) |
1519b995 | 1440 | return false; |
2d1fe073 | 1441 | } else if (IS_CHERRYVIEW(dev_priv)) { |
44f37d1f CML |
1442 | if ((val & SDVO_PIPE_SEL_MASK_CHV) != SDVO_PIPE_SEL_CHV(pipe)) |
1443 | return false; | |
1519b995 | 1444 | } else { |
dc0fa718 | 1445 | if ((val & SDVO_PIPE_SEL_MASK) != SDVO_PIPE_SEL(pipe)) |
1519b995 KP |
1446 | return false; |
1447 | } | |
1448 | return true; | |
1449 | } | |
1450 | ||
1451 | static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv, | |
1452 | enum pipe pipe, u32 val) | |
1453 | { | |
1454 | if ((val & LVDS_PORT_EN) == 0) | |
1455 | return false; | |
1456 | ||
2d1fe073 | 1457 | if (HAS_PCH_CPT(dev_priv)) { |
1519b995 KP |
1458 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) |
1459 | return false; | |
1460 | } else { | |
1461 | if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe)) | |
1462 | return false; | |
1463 | } | |
1464 | return true; | |
1465 | } | |
1466 | ||
1467 | static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv, | |
1468 | enum pipe pipe, u32 val) | |
1469 | { | |
1470 | if ((val & ADPA_DAC_ENABLE) == 0) | |
1471 | return false; | |
2d1fe073 | 1472 | if (HAS_PCH_CPT(dev_priv)) { |
1519b995 KP |
1473 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) |
1474 | return false; | |
1475 | } else { | |
1476 | if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe)) | |
1477 | return false; | |
1478 | } | |
1479 | return true; | |
1480 | } | |
1481 | ||
291906f1 | 1482 | static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv, |
f0f59a00 VS |
1483 | enum pipe pipe, i915_reg_t reg, |
1484 | u32 port_sel) | |
291906f1 | 1485 | { |
47a05eca | 1486 | u32 val = I915_READ(reg); |
e2c719b7 | 1487 | I915_STATE_WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val), |
291906f1 | 1488 | "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n", |
f0f59a00 | 1489 | i915_mmio_reg_offset(reg), pipe_name(pipe)); |
de9a35ab | 1490 | |
2d1fe073 | 1491 | I915_STATE_WARN(HAS_PCH_IBX(dev_priv) && (val & DP_PORT_EN) == 0 |
75c5da27 | 1492 | && (val & DP_PIPEB_SELECT), |
de9a35ab | 1493 | "IBX PCH dp port still using transcoder B\n"); |
291906f1 JB |
1494 | } |
1495 | ||
1496 | static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv, | |
f0f59a00 | 1497 | enum pipe pipe, i915_reg_t reg) |
291906f1 | 1498 | { |
47a05eca | 1499 | u32 val = I915_READ(reg); |
e2c719b7 | 1500 | I915_STATE_WARN(hdmi_pipe_enabled(dev_priv, pipe, val), |
23c99e77 | 1501 | "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n", |
f0f59a00 | 1502 | i915_mmio_reg_offset(reg), pipe_name(pipe)); |
de9a35ab | 1503 | |
2d1fe073 | 1504 | I915_STATE_WARN(HAS_PCH_IBX(dev_priv) && (val & SDVO_ENABLE) == 0 |
75c5da27 | 1505 | && (val & SDVO_PIPE_B_SELECT), |
de9a35ab | 1506 | "IBX PCH hdmi port still using transcoder B\n"); |
291906f1 JB |
1507 | } |
1508 | ||
1509 | static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, | |
1510 | enum pipe pipe) | |
1511 | { | |
291906f1 | 1512 | u32 val; |
291906f1 | 1513 | |
f0575e92 KP |
1514 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); |
1515 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); | |
1516 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); | |
291906f1 | 1517 | |
649636ef | 1518 | val = I915_READ(PCH_ADPA); |
e2c719b7 | 1519 | I915_STATE_WARN(adpa_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1520 | "PCH VGA enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1521 | pipe_name(pipe)); |
291906f1 | 1522 | |
649636ef | 1523 | val = I915_READ(PCH_LVDS); |
e2c719b7 | 1524 | I915_STATE_WARN(lvds_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1525 | "PCH LVDS enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1526 | pipe_name(pipe)); |
291906f1 | 1527 | |
e2debe91 PZ |
1528 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIB); |
1529 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIC); | |
1530 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMID); | |
291906f1 JB |
1531 | } |
1532 | ||
cd2d34d9 VS |
1533 | static void _vlv_enable_pll(struct intel_crtc *crtc, |
1534 | const struct intel_crtc_state *pipe_config) | |
1535 | { | |
1536 | struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); | |
1537 | enum pipe pipe = crtc->pipe; | |
1538 | ||
1539 | I915_WRITE(DPLL(pipe), pipe_config->dpll_hw_state.dpll); | |
1540 | POSTING_READ(DPLL(pipe)); | |
1541 | udelay(150); | |
1542 | ||
1543 | if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1)) | |
1544 | DRM_ERROR("DPLL %d failed to lock\n", pipe); | |
1545 | } | |
1546 | ||
d288f65f | 1547 | static void vlv_enable_pll(struct intel_crtc *crtc, |
5cec258b | 1548 | const struct intel_crtc_state *pipe_config) |
87442f73 | 1549 | { |
cd2d34d9 | 1550 | struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); |
8bd3f301 | 1551 | enum pipe pipe = crtc->pipe; |
87442f73 | 1552 | |
8bd3f301 | 1553 | assert_pipe_disabled(dev_priv, pipe); |
87442f73 | 1554 | |
87442f73 | 1555 | /* PLL is protected by panel, make sure we can write it */ |
7d1a83cb | 1556 | assert_panel_unlocked(dev_priv, pipe); |
426115cf | 1557 | |
cd2d34d9 VS |
1558 | if (pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE) |
1559 | _vlv_enable_pll(crtc, pipe_config); | |
87442f73 | 1560 | |
8bd3f301 VS |
1561 | I915_WRITE(DPLL_MD(pipe), pipe_config->dpll_hw_state.dpll_md); |
1562 | POSTING_READ(DPLL_MD(pipe)); | |
87442f73 DV |
1563 | } |
1564 | ||
cd2d34d9 VS |
1565 | |
1566 | static void _chv_enable_pll(struct intel_crtc *crtc, | |
1567 | const struct intel_crtc_state *pipe_config) | |
9d556c99 | 1568 | { |
cd2d34d9 | 1569 | struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); |
8bd3f301 | 1570 | enum pipe pipe = crtc->pipe; |
9d556c99 | 1571 | enum dpio_channel port = vlv_pipe_to_channel(pipe); |
9d556c99 CML |
1572 | u32 tmp; |
1573 | ||
a580516d | 1574 | mutex_lock(&dev_priv->sb_lock); |
9d556c99 CML |
1575 | |
1576 | /* Enable back the 10bit clock to display controller */ | |
1577 | tmp = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port)); | |
1578 | tmp |= DPIO_DCLKP_EN; | |
1579 | vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), tmp); | |
1580 | ||
54433e91 VS |
1581 | mutex_unlock(&dev_priv->sb_lock); |
1582 | ||
9d556c99 CML |
1583 | /* |
1584 | * Need to wait > 100ns between dclkp clock enable bit and PLL enable. | |
1585 | */ | |
1586 | udelay(1); | |
1587 | ||
1588 | /* Enable PLL */ | |
d288f65f | 1589 | I915_WRITE(DPLL(pipe), pipe_config->dpll_hw_state.dpll); |
9d556c99 CML |
1590 | |
1591 | /* Check PLL is locked */ | |
a11b0703 | 1592 | if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1)) |
9d556c99 | 1593 | DRM_ERROR("PLL %d failed to lock\n", pipe); |
cd2d34d9 | 1594 | } |
9d556c99 | 1595 | |
cd2d34d9 VS |
1596 | static void chv_enable_pll(struct intel_crtc *crtc, |
1597 | const struct intel_crtc_state *pipe_config) | |
1598 | { | |
1599 | struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); | |
1600 | enum pipe pipe = crtc->pipe; | |
1601 | ||
1602 | assert_pipe_disabled(dev_priv, pipe); | |
1603 | ||
1604 | /* PLL is protected by panel, make sure we can write it */ | |
1605 | assert_panel_unlocked(dev_priv, pipe); | |
1606 | ||
1607 | if (pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE) | |
1608 | _chv_enable_pll(crtc, pipe_config); | |
9d556c99 | 1609 | |
c231775c VS |
1610 | if (pipe != PIPE_A) { |
1611 | /* | |
1612 | * WaPixelRepeatModeFixForC0:chv | |
1613 | * | |
1614 | * DPLLCMD is AWOL. Use chicken bits to propagate | |
1615 | * the value from DPLLBMD to either pipe B or C. | |
1616 | */ | |
1617 | I915_WRITE(CBR4_VLV, pipe == PIPE_B ? CBR_DPLLBMD_PIPE_B : CBR_DPLLBMD_PIPE_C); | |
1618 | I915_WRITE(DPLL_MD(PIPE_B), pipe_config->dpll_hw_state.dpll_md); | |
1619 | I915_WRITE(CBR4_VLV, 0); | |
1620 | dev_priv->chv_dpll_md[pipe] = pipe_config->dpll_hw_state.dpll_md; | |
1621 | ||
1622 | /* | |
1623 | * DPLLB VGA mode also seems to cause problems. | |
1624 | * We should always have it disabled. | |
1625 | */ | |
1626 | WARN_ON((I915_READ(DPLL(PIPE_B)) & DPLL_VGA_MODE_DIS) == 0); | |
1627 | } else { | |
1628 | I915_WRITE(DPLL_MD(pipe), pipe_config->dpll_hw_state.dpll_md); | |
1629 | POSTING_READ(DPLL_MD(pipe)); | |
1630 | } | |
9d556c99 CML |
1631 | } |
1632 | ||
1c4e0274 VS |
1633 | static int intel_num_dvo_pipes(struct drm_device *dev) |
1634 | { | |
1635 | struct intel_crtc *crtc; | |
1636 | int count = 0; | |
1637 | ||
1638 | for_each_intel_crtc(dev, crtc) | |
3538b9df | 1639 | count += crtc->base.state->active && |
409ee761 | 1640 | intel_pipe_has_type(crtc, INTEL_OUTPUT_DVO); |
1c4e0274 VS |
1641 | |
1642 | return count; | |
1643 | } | |
1644 | ||
66e3d5c0 | 1645 | static void i9xx_enable_pll(struct intel_crtc *crtc) |
63d7bbe9 | 1646 | { |
66e3d5c0 DV |
1647 | struct drm_device *dev = crtc->base.dev; |
1648 | struct drm_i915_private *dev_priv = dev->dev_private; | |
f0f59a00 | 1649 | i915_reg_t reg = DPLL(crtc->pipe); |
6e3c9717 | 1650 | u32 dpll = crtc->config->dpll_hw_state.dpll; |
63d7bbe9 | 1651 | |
66e3d5c0 | 1652 | assert_pipe_disabled(dev_priv, crtc->pipe); |
58c6eaa2 | 1653 | |
63d7bbe9 | 1654 | /* PLL is protected by panel, make sure we can write it */ |
66e3d5c0 DV |
1655 | if (IS_MOBILE(dev) && !IS_I830(dev)) |
1656 | assert_panel_unlocked(dev_priv, crtc->pipe); | |
63d7bbe9 | 1657 | |
1c4e0274 VS |
1658 | /* Enable DVO 2x clock on both PLLs if necessary */ |
1659 | if (IS_I830(dev) && intel_num_dvo_pipes(dev) > 0) { | |
1660 | /* | |
1661 | * It appears to be important that we don't enable this | |
1662 | * for the current pipe before otherwise configuring the | |
1663 | * PLL. No idea how this should be handled if multiple | |
1664 | * DVO outputs are enabled simultaneosly. | |
1665 | */ | |
1666 | dpll |= DPLL_DVO_2X_MODE; | |
1667 | I915_WRITE(DPLL(!crtc->pipe), | |
1668 | I915_READ(DPLL(!crtc->pipe)) | DPLL_DVO_2X_MODE); | |
1669 | } | |
66e3d5c0 | 1670 | |
c2b63374 VS |
1671 | /* |
1672 | * Apparently we need to have VGA mode enabled prior to changing | |
1673 | * the P1/P2 dividers. Otherwise the DPLL will keep using the old | |
1674 | * dividers, even though the register value does change. | |
1675 | */ | |
1676 | I915_WRITE(reg, 0); | |
1677 | ||
8e7a65aa VS |
1678 | I915_WRITE(reg, dpll); |
1679 | ||
66e3d5c0 DV |
1680 | /* Wait for the clocks to stabilize. */ |
1681 | POSTING_READ(reg); | |
1682 | udelay(150); | |
1683 | ||
1684 | if (INTEL_INFO(dev)->gen >= 4) { | |
1685 | I915_WRITE(DPLL_MD(crtc->pipe), | |
6e3c9717 | 1686 | crtc->config->dpll_hw_state.dpll_md); |
66e3d5c0 DV |
1687 | } else { |
1688 | /* The pixel multiplier can only be updated once the | |
1689 | * DPLL is enabled and the clocks are stable. | |
1690 | * | |
1691 | * So write it again. | |
1692 | */ | |
1693 | I915_WRITE(reg, dpll); | |
1694 | } | |
63d7bbe9 JB |
1695 | |
1696 | /* We do this three times for luck */ | |
66e3d5c0 | 1697 | I915_WRITE(reg, dpll); |
63d7bbe9 JB |
1698 | POSTING_READ(reg); |
1699 | udelay(150); /* wait for warmup */ | |
66e3d5c0 | 1700 | I915_WRITE(reg, dpll); |
63d7bbe9 JB |
1701 | POSTING_READ(reg); |
1702 | udelay(150); /* wait for warmup */ | |
66e3d5c0 | 1703 | I915_WRITE(reg, dpll); |
63d7bbe9 JB |
1704 | POSTING_READ(reg); |
1705 | udelay(150); /* wait for warmup */ | |
1706 | } | |
1707 | ||
1708 | /** | |
50b44a44 | 1709 | * i9xx_disable_pll - disable a PLL |
63d7bbe9 JB |
1710 | * @dev_priv: i915 private structure |
1711 | * @pipe: pipe PLL to disable | |
1712 | * | |
1713 | * Disable the PLL for @pipe, making sure the pipe is off first. | |
1714 | * | |
1715 | * Note! This is for pre-ILK only. | |
1716 | */ | |
1c4e0274 | 1717 | static void i9xx_disable_pll(struct intel_crtc *crtc) |
63d7bbe9 | 1718 | { |
1c4e0274 VS |
1719 | struct drm_device *dev = crtc->base.dev; |
1720 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1721 | enum pipe pipe = crtc->pipe; | |
1722 | ||
1723 | /* Disable DVO 2x clock on both PLLs if necessary */ | |
1724 | if (IS_I830(dev) && | |
409ee761 | 1725 | intel_pipe_has_type(crtc, INTEL_OUTPUT_DVO) && |
3538b9df | 1726 | !intel_num_dvo_pipes(dev)) { |
1c4e0274 VS |
1727 | I915_WRITE(DPLL(PIPE_B), |
1728 | I915_READ(DPLL(PIPE_B)) & ~DPLL_DVO_2X_MODE); | |
1729 | I915_WRITE(DPLL(PIPE_A), | |
1730 | I915_READ(DPLL(PIPE_A)) & ~DPLL_DVO_2X_MODE); | |
1731 | } | |
1732 | ||
b6b5d049 VS |
1733 | /* Don't disable pipe or pipe PLLs if needed */ |
1734 | if ((pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || | |
1735 | (pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
63d7bbe9 JB |
1736 | return; |
1737 | ||
1738 | /* Make sure the pipe isn't still relying on us */ | |
1739 | assert_pipe_disabled(dev_priv, pipe); | |
1740 | ||
b8afb911 | 1741 | I915_WRITE(DPLL(pipe), DPLL_VGA_MODE_DIS); |
50b44a44 | 1742 | POSTING_READ(DPLL(pipe)); |
63d7bbe9 JB |
1743 | } |
1744 | ||
f6071166 JB |
1745 | static void vlv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) |
1746 | { | |
b8afb911 | 1747 | u32 val; |
f6071166 JB |
1748 | |
1749 | /* Make sure the pipe isn't still relying on us */ | |
1750 | assert_pipe_disabled(dev_priv, pipe); | |
1751 | ||
03ed5cbf VS |
1752 | val = DPLL_INTEGRATED_REF_CLK_VLV | |
1753 | DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS; | |
1754 | if (pipe != PIPE_A) | |
1755 | val |= DPLL_INTEGRATED_CRI_CLK_VLV; | |
1756 | ||
f6071166 JB |
1757 | I915_WRITE(DPLL(pipe), val); |
1758 | POSTING_READ(DPLL(pipe)); | |
076ed3b2 CML |
1759 | } |
1760 | ||
1761 | static void chv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) | |
1762 | { | |
d752048d | 1763 | enum dpio_channel port = vlv_pipe_to_channel(pipe); |
076ed3b2 CML |
1764 | u32 val; |
1765 | ||
a11b0703 VS |
1766 | /* Make sure the pipe isn't still relying on us */ |
1767 | assert_pipe_disabled(dev_priv, pipe); | |
076ed3b2 | 1768 | |
60bfe44f VS |
1769 | val = DPLL_SSC_REF_CLK_CHV | |
1770 | DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS; | |
a11b0703 VS |
1771 | if (pipe != PIPE_A) |
1772 | val |= DPLL_INTEGRATED_CRI_CLK_VLV; | |
03ed5cbf | 1773 | |
a11b0703 VS |
1774 | I915_WRITE(DPLL(pipe), val); |
1775 | POSTING_READ(DPLL(pipe)); | |
d752048d | 1776 | |
a580516d | 1777 | mutex_lock(&dev_priv->sb_lock); |
d752048d VS |
1778 | |
1779 | /* Disable 10bit clock to display controller */ | |
1780 | val = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port)); | |
1781 | val &= ~DPIO_DCLKP_EN; | |
1782 | vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), val); | |
1783 | ||
a580516d | 1784 | mutex_unlock(&dev_priv->sb_lock); |
f6071166 JB |
1785 | } |
1786 | ||
e4607fcf | 1787 | void vlv_wait_port_ready(struct drm_i915_private *dev_priv, |
9b6de0a1 VS |
1788 | struct intel_digital_port *dport, |
1789 | unsigned int expected_mask) | |
89b667f8 JB |
1790 | { |
1791 | u32 port_mask; | |
f0f59a00 | 1792 | i915_reg_t dpll_reg; |
89b667f8 | 1793 | |
e4607fcf CML |
1794 | switch (dport->port) { |
1795 | case PORT_B: | |
89b667f8 | 1796 | port_mask = DPLL_PORTB_READY_MASK; |
00fc31b7 | 1797 | dpll_reg = DPLL(0); |
e4607fcf CML |
1798 | break; |
1799 | case PORT_C: | |
89b667f8 | 1800 | port_mask = DPLL_PORTC_READY_MASK; |
00fc31b7 | 1801 | dpll_reg = DPLL(0); |
9b6de0a1 | 1802 | expected_mask <<= 4; |
00fc31b7 CML |
1803 | break; |
1804 | case PORT_D: | |
1805 | port_mask = DPLL_PORTD_READY_MASK; | |
1806 | dpll_reg = DPIO_PHY_STATUS; | |
e4607fcf CML |
1807 | break; |
1808 | default: | |
1809 | BUG(); | |
1810 | } | |
89b667f8 | 1811 | |
9b6de0a1 VS |
1812 | if (wait_for((I915_READ(dpll_reg) & port_mask) == expected_mask, 1000)) |
1813 | WARN(1, "timed out waiting for port %c ready: got 0x%x, expected 0x%x\n", | |
1814 | port_name(dport->port), I915_READ(dpll_reg) & port_mask, expected_mask); | |
89b667f8 JB |
1815 | } |
1816 | ||
b8a4f404 PZ |
1817 | static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv, |
1818 | enum pipe pipe) | |
b14b1055 | 1819 | { |
23670b32 | 1820 | struct drm_device *dev = dev_priv->dev; |
7c26e5c6 | 1821 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
e2b78267 | 1822 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
f0f59a00 VS |
1823 | i915_reg_t reg; |
1824 | uint32_t val, pipeconf_val; | |
b14b1055 | 1825 | |
040484af | 1826 | /* Make sure PCH DPLL is enabled */ |
8106ddbd | 1827 | assert_shared_dpll_enabled(dev_priv, intel_crtc->config->shared_dpll); |
be19f0ff | 1828 | |
040484af JB |
1829 | /* FDI must be feeding us bits for PCH ports */ |
1830 | assert_fdi_tx_enabled(dev_priv, pipe); | |
1831 | assert_fdi_rx_enabled(dev_priv, pipe); | |
b14b1055 | 1832 | |
23670b32 DV |
1833 | if (HAS_PCH_CPT(dev)) { |
1834 | /* Workaround: Set the timing override bit before enabling the | |
1835 | * pch transcoder. */ | |
1836 | reg = TRANS_CHICKEN2(pipe); | |
1837 | val = I915_READ(reg); | |
1838 | val |= TRANS_CHICKEN2_TIMING_OVERRIDE; | |
1839 | I915_WRITE(reg, val); | |
b14b1055 | 1840 | } |
b14b1055 | 1841 | |
ab9412ba | 1842 | reg = PCH_TRANSCONF(pipe); |
040484af | 1843 | val = I915_READ(reg); |
5f7f726d | 1844 | pipeconf_val = I915_READ(PIPECONF(pipe)); |
92f2584a | 1845 | |
2d1fe073 | 1846 | if (HAS_PCH_IBX(dev_priv)) { |
e9bcff5c | 1847 | /* |
c5de7c6f VS |
1848 | * Make the BPC in transcoder be consistent with |
1849 | * that in pipeconf reg. For HDMI we must use 8bpc | |
1850 | * here for both 8bpc and 12bpc. | |
e9bcff5c | 1851 | */ |
dfd07d72 | 1852 | val &= ~PIPECONF_BPC_MASK; |
c5de7c6f VS |
1853 | if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_HDMI)) |
1854 | val |= PIPECONF_8BPC; | |
1855 | else | |
1856 | val |= pipeconf_val & PIPECONF_BPC_MASK; | |
e9bcff5c | 1857 | } |
5f7f726d PZ |
1858 | |
1859 | val &= ~TRANS_INTERLACE_MASK; | |
1860 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK) | |
2d1fe073 | 1861 | if (HAS_PCH_IBX(dev_priv) && |
409ee761 | 1862 | intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_SDVO)) |
7c26e5c6 PZ |
1863 | val |= TRANS_LEGACY_INTERLACED_ILK; |
1864 | else | |
1865 | val |= TRANS_INTERLACED; | |
5f7f726d PZ |
1866 | else |
1867 | val |= TRANS_PROGRESSIVE; | |
1868 | ||
040484af JB |
1869 | I915_WRITE(reg, val | TRANS_ENABLE); |
1870 | if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100)) | |
4bb6f1f3 | 1871 | DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe)); |
040484af JB |
1872 | } |
1873 | ||
8fb033d7 | 1874 | static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv, |
937bb610 | 1875 | enum transcoder cpu_transcoder) |
040484af | 1876 | { |
8fb033d7 | 1877 | u32 val, pipeconf_val; |
8fb033d7 | 1878 | |
8fb033d7 | 1879 | /* FDI must be feeding us bits for PCH ports */ |
1a240d4d | 1880 | assert_fdi_tx_enabled(dev_priv, (enum pipe) cpu_transcoder); |
937bb610 | 1881 | assert_fdi_rx_enabled(dev_priv, TRANSCODER_A); |
8fb033d7 | 1882 | |
223a6fdf | 1883 | /* Workaround: set timing override bit. */ |
36c0d0cf | 1884 | val = I915_READ(TRANS_CHICKEN2(PIPE_A)); |
23670b32 | 1885 | val |= TRANS_CHICKEN2_TIMING_OVERRIDE; |
36c0d0cf | 1886 | I915_WRITE(TRANS_CHICKEN2(PIPE_A), val); |
223a6fdf | 1887 | |
25f3ef11 | 1888 | val = TRANS_ENABLE; |
937bb610 | 1889 | pipeconf_val = I915_READ(PIPECONF(cpu_transcoder)); |
8fb033d7 | 1890 | |
9a76b1c6 PZ |
1891 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK_HSW) == |
1892 | PIPECONF_INTERLACED_ILK) | |
a35f2679 | 1893 | val |= TRANS_INTERLACED; |
8fb033d7 PZ |
1894 | else |
1895 | val |= TRANS_PROGRESSIVE; | |
1896 | ||
ab9412ba DV |
1897 | I915_WRITE(LPT_TRANSCONF, val); |
1898 | if (wait_for(I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE, 100)) | |
937bb610 | 1899 | DRM_ERROR("Failed to enable PCH transcoder\n"); |
8fb033d7 PZ |
1900 | } |
1901 | ||
b8a4f404 PZ |
1902 | static void ironlake_disable_pch_transcoder(struct drm_i915_private *dev_priv, |
1903 | enum pipe pipe) | |
040484af | 1904 | { |
23670b32 | 1905 | struct drm_device *dev = dev_priv->dev; |
f0f59a00 VS |
1906 | i915_reg_t reg; |
1907 | uint32_t val; | |
040484af JB |
1908 | |
1909 | /* FDI relies on the transcoder */ | |
1910 | assert_fdi_tx_disabled(dev_priv, pipe); | |
1911 | assert_fdi_rx_disabled(dev_priv, pipe); | |
1912 | ||
291906f1 JB |
1913 | /* Ports must be off as well */ |
1914 | assert_pch_ports_disabled(dev_priv, pipe); | |
1915 | ||
ab9412ba | 1916 | reg = PCH_TRANSCONF(pipe); |
040484af JB |
1917 | val = I915_READ(reg); |
1918 | val &= ~TRANS_ENABLE; | |
1919 | I915_WRITE(reg, val); | |
1920 | /* wait for PCH transcoder off, transcoder state */ | |
1921 | if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50)) | |
4bb6f1f3 | 1922 | DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe)); |
23670b32 | 1923 | |
c465613b | 1924 | if (HAS_PCH_CPT(dev)) { |
23670b32 DV |
1925 | /* Workaround: Clear the timing override chicken bit again. */ |
1926 | reg = TRANS_CHICKEN2(pipe); | |
1927 | val = I915_READ(reg); | |
1928 | val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE; | |
1929 | I915_WRITE(reg, val); | |
1930 | } | |
040484af JB |
1931 | } |
1932 | ||
ab4d966c | 1933 | static void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv) |
8fb033d7 | 1934 | { |
8fb033d7 PZ |
1935 | u32 val; |
1936 | ||
ab9412ba | 1937 | val = I915_READ(LPT_TRANSCONF); |
8fb033d7 | 1938 | val &= ~TRANS_ENABLE; |
ab9412ba | 1939 | I915_WRITE(LPT_TRANSCONF, val); |
8fb033d7 | 1940 | /* wait for PCH transcoder off, transcoder state */ |
ab9412ba | 1941 | if (wait_for((I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE) == 0, 50)) |
8a52fd9f | 1942 | DRM_ERROR("Failed to disable PCH transcoder\n"); |
223a6fdf PZ |
1943 | |
1944 | /* Workaround: clear timing override bit. */ | |
36c0d0cf | 1945 | val = I915_READ(TRANS_CHICKEN2(PIPE_A)); |
23670b32 | 1946 | val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE; |
36c0d0cf | 1947 | I915_WRITE(TRANS_CHICKEN2(PIPE_A), val); |
040484af JB |
1948 | } |
1949 | ||
b24e7179 | 1950 | /** |
309cfea8 | 1951 | * intel_enable_pipe - enable a pipe, asserting requirements |
0372264a | 1952 | * @crtc: crtc responsible for the pipe |
b24e7179 | 1953 | * |
0372264a | 1954 | * Enable @crtc's pipe, making sure that various hardware specific requirements |
b24e7179 | 1955 | * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc. |
b24e7179 | 1956 | */ |
e1fdc473 | 1957 | static void intel_enable_pipe(struct intel_crtc *crtc) |
b24e7179 | 1958 | { |
0372264a PZ |
1959 | struct drm_device *dev = crtc->base.dev; |
1960 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1961 | enum pipe pipe = crtc->pipe; | |
1a70a728 | 1962 | enum transcoder cpu_transcoder = crtc->config->cpu_transcoder; |
1a240d4d | 1963 | enum pipe pch_transcoder; |
f0f59a00 | 1964 | i915_reg_t reg; |
b24e7179 JB |
1965 | u32 val; |
1966 | ||
9e2ee2dd VS |
1967 | DRM_DEBUG_KMS("enabling pipe %c\n", pipe_name(pipe)); |
1968 | ||
58c6eaa2 | 1969 | assert_planes_disabled(dev_priv, pipe); |
93ce0ba6 | 1970 | assert_cursor_disabled(dev_priv, pipe); |
58c6eaa2 DV |
1971 | assert_sprites_disabled(dev_priv, pipe); |
1972 | ||
2d1fe073 | 1973 | if (HAS_PCH_LPT(dev_priv)) |
cc391bbb PZ |
1974 | pch_transcoder = TRANSCODER_A; |
1975 | else | |
1976 | pch_transcoder = pipe; | |
1977 | ||
b24e7179 JB |
1978 | /* |
1979 | * A pipe without a PLL won't actually be able to drive bits from | |
1980 | * a plane. On ILK+ the pipe PLLs are integrated, so we don't | |
1981 | * need the check. | |
1982 | */ | |
2d1fe073 | 1983 | if (HAS_GMCH_DISPLAY(dev_priv)) |
a65347ba | 1984 | if (crtc->config->has_dsi_encoder) |
23538ef1 JN |
1985 | assert_dsi_pll_enabled(dev_priv); |
1986 | else | |
1987 | assert_pll_enabled(dev_priv, pipe); | |
040484af | 1988 | else { |
6e3c9717 | 1989 | if (crtc->config->has_pch_encoder) { |
040484af | 1990 | /* if driving the PCH, we need FDI enabled */ |
cc391bbb | 1991 | assert_fdi_rx_pll_enabled(dev_priv, pch_transcoder); |
1a240d4d DV |
1992 | assert_fdi_tx_pll_enabled(dev_priv, |
1993 | (enum pipe) cpu_transcoder); | |
040484af JB |
1994 | } |
1995 | /* FIXME: assert CPU port conditions for SNB+ */ | |
1996 | } | |
b24e7179 | 1997 | |
702e7a56 | 1998 | reg = PIPECONF(cpu_transcoder); |
b24e7179 | 1999 | val = I915_READ(reg); |
7ad25d48 | 2000 | if (val & PIPECONF_ENABLE) { |
b6b5d049 VS |
2001 | WARN_ON(!((pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || |
2002 | (pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE))); | |
00d70b15 | 2003 | return; |
7ad25d48 | 2004 | } |
00d70b15 CW |
2005 | |
2006 | I915_WRITE(reg, val | PIPECONF_ENABLE); | |
851855d8 | 2007 | POSTING_READ(reg); |
b7792d8b VS |
2008 | |
2009 | /* | |
2010 | * Until the pipe starts DSL will read as 0, which would cause | |
2011 | * an apparent vblank timestamp jump, which messes up also the | |
2012 | * frame count when it's derived from the timestamps. So let's | |
2013 | * wait for the pipe to start properly before we call | |
2014 | * drm_crtc_vblank_on() | |
2015 | */ | |
2016 | if (dev->max_vblank_count == 0 && | |
2017 | wait_for(intel_get_crtc_scanline(crtc) != crtc->scanline_offset, 50)) | |
2018 | DRM_ERROR("pipe %c didn't start\n", pipe_name(pipe)); | |
b24e7179 JB |
2019 | } |
2020 | ||
2021 | /** | |
309cfea8 | 2022 | * intel_disable_pipe - disable a pipe, asserting requirements |
575f7ab7 | 2023 | * @crtc: crtc whose pipes is to be disabled |
b24e7179 | 2024 | * |
575f7ab7 VS |
2025 | * Disable the pipe of @crtc, making sure that various hardware |
2026 | * specific requirements are met, if applicable, e.g. plane | |
2027 | * disabled, panel fitter off, etc. | |
b24e7179 JB |
2028 | * |
2029 | * Will wait until the pipe has shut down before returning. | |
2030 | */ | |
575f7ab7 | 2031 | static void intel_disable_pipe(struct intel_crtc *crtc) |
b24e7179 | 2032 | { |
575f7ab7 | 2033 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; |
6e3c9717 | 2034 | enum transcoder cpu_transcoder = crtc->config->cpu_transcoder; |
575f7ab7 | 2035 | enum pipe pipe = crtc->pipe; |
f0f59a00 | 2036 | i915_reg_t reg; |
b24e7179 JB |
2037 | u32 val; |
2038 | ||
9e2ee2dd VS |
2039 | DRM_DEBUG_KMS("disabling pipe %c\n", pipe_name(pipe)); |
2040 | ||
b24e7179 JB |
2041 | /* |
2042 | * Make sure planes won't keep trying to pump pixels to us, | |
2043 | * or we might hang the display. | |
2044 | */ | |
2045 | assert_planes_disabled(dev_priv, pipe); | |
93ce0ba6 | 2046 | assert_cursor_disabled(dev_priv, pipe); |
19332d7a | 2047 | assert_sprites_disabled(dev_priv, pipe); |
b24e7179 | 2048 | |
702e7a56 | 2049 | reg = PIPECONF(cpu_transcoder); |
b24e7179 | 2050 | val = I915_READ(reg); |
00d70b15 CW |
2051 | if ((val & PIPECONF_ENABLE) == 0) |
2052 | return; | |
2053 | ||
67adc644 VS |
2054 | /* |
2055 | * Double wide has implications for planes | |
2056 | * so best keep it disabled when not needed. | |
2057 | */ | |
6e3c9717 | 2058 | if (crtc->config->double_wide) |
67adc644 VS |
2059 | val &= ~PIPECONF_DOUBLE_WIDE; |
2060 | ||
2061 | /* Don't disable pipe or pipe PLLs if needed */ | |
b6b5d049 VS |
2062 | if (!(pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) && |
2063 | !(pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
67adc644 VS |
2064 | val &= ~PIPECONF_ENABLE; |
2065 | ||
2066 | I915_WRITE(reg, val); | |
2067 | if ((val & PIPECONF_ENABLE) == 0) | |
2068 | intel_wait_for_pipe_off(crtc); | |
b24e7179 JB |
2069 | } |
2070 | ||
693db184 CW |
2071 | static bool need_vtd_wa(struct drm_device *dev) |
2072 | { | |
2073 | #ifdef CONFIG_INTEL_IOMMU | |
2074 | if (INTEL_INFO(dev)->gen >= 6 && intel_iommu_gfx_mapped) | |
2075 | return true; | |
2076 | #endif | |
2077 | return false; | |
2078 | } | |
2079 | ||
832be82f VS |
2080 | static unsigned int intel_tile_size(const struct drm_i915_private *dev_priv) |
2081 | { | |
2082 | return IS_GEN2(dev_priv) ? 2048 : 4096; | |
2083 | } | |
2084 | ||
27ba3910 VS |
2085 | static unsigned int intel_tile_width_bytes(const struct drm_i915_private *dev_priv, |
2086 | uint64_t fb_modifier, unsigned int cpp) | |
7b49f948 VS |
2087 | { |
2088 | switch (fb_modifier) { | |
2089 | case DRM_FORMAT_MOD_NONE: | |
2090 | return cpp; | |
2091 | case I915_FORMAT_MOD_X_TILED: | |
2092 | if (IS_GEN2(dev_priv)) | |
2093 | return 128; | |
2094 | else | |
2095 | return 512; | |
2096 | case I915_FORMAT_MOD_Y_TILED: | |
2097 | if (IS_GEN2(dev_priv) || HAS_128_BYTE_Y_TILING(dev_priv)) | |
2098 | return 128; | |
2099 | else | |
2100 | return 512; | |
2101 | case I915_FORMAT_MOD_Yf_TILED: | |
2102 | switch (cpp) { | |
2103 | case 1: | |
2104 | return 64; | |
2105 | case 2: | |
2106 | case 4: | |
2107 | return 128; | |
2108 | case 8: | |
2109 | case 16: | |
2110 | return 256; | |
2111 | default: | |
2112 | MISSING_CASE(cpp); | |
2113 | return cpp; | |
2114 | } | |
2115 | break; | |
2116 | default: | |
2117 | MISSING_CASE(fb_modifier); | |
2118 | return cpp; | |
2119 | } | |
2120 | } | |
2121 | ||
832be82f VS |
2122 | unsigned int intel_tile_height(const struct drm_i915_private *dev_priv, |
2123 | uint64_t fb_modifier, unsigned int cpp) | |
a57ce0b2 | 2124 | { |
832be82f VS |
2125 | if (fb_modifier == DRM_FORMAT_MOD_NONE) |
2126 | return 1; | |
2127 | else | |
2128 | return intel_tile_size(dev_priv) / | |
27ba3910 | 2129 | intel_tile_width_bytes(dev_priv, fb_modifier, cpp); |
6761dd31 TU |
2130 | } |
2131 | ||
8d0deca8 VS |
2132 | /* Return the tile dimensions in pixel units */ |
2133 | static void intel_tile_dims(const struct drm_i915_private *dev_priv, | |
2134 | unsigned int *tile_width, | |
2135 | unsigned int *tile_height, | |
2136 | uint64_t fb_modifier, | |
2137 | unsigned int cpp) | |
2138 | { | |
2139 | unsigned int tile_width_bytes = | |
2140 | intel_tile_width_bytes(dev_priv, fb_modifier, cpp); | |
2141 | ||
2142 | *tile_width = tile_width_bytes / cpp; | |
2143 | *tile_height = intel_tile_size(dev_priv) / tile_width_bytes; | |
6761dd31 TU |
2144 | } |
2145 | ||
2146 | unsigned int | |
2147 | intel_fb_align_height(struct drm_device *dev, unsigned int height, | |
832be82f | 2148 | uint32_t pixel_format, uint64_t fb_modifier) |
6761dd31 | 2149 | { |
832be82f VS |
2150 | unsigned int cpp = drm_format_plane_cpp(pixel_format, 0); |
2151 | unsigned int tile_height = intel_tile_height(to_i915(dev), fb_modifier, cpp); | |
2152 | ||
2153 | return ALIGN(height, tile_height); | |
a57ce0b2 JB |
2154 | } |
2155 | ||
1663b9d6 | 2156 | unsigned int intel_rotation_info_size(const struct intel_rotation_info *rot_info) |
f64b98cd | 2157 | { |
1663b9d6 VS |
2158 | unsigned int size = 0; |
2159 | int i; | |
f64b98cd | 2160 | |
1663b9d6 VS |
2161 | for (i = 0 ; i < ARRAY_SIZE(rot_info->plane); i++) |
2162 | size += rot_info->plane[i].width * rot_info->plane[i].height; | |
50470bb0 | 2163 | |
1663b9d6 VS |
2164 | return size; |
2165 | } | |
50470bb0 | 2166 | |
75c82a53 | 2167 | static void |
3465c580 VS |
2168 | intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, |
2169 | const struct drm_framebuffer *fb, | |
2170 | unsigned int rotation) | |
f64b98cd | 2171 | { |
2d7a215f VS |
2172 | if (intel_rotation_90_or_270(rotation)) { |
2173 | *view = i915_ggtt_view_rotated; | |
2174 | view->params.rotated = to_intel_framebuffer(fb)->rot_info; | |
2175 | } else { | |
2176 | *view = i915_ggtt_view_normal; | |
2177 | } | |
2178 | } | |
50470bb0 | 2179 | |
2d7a215f VS |
2180 | static void |
2181 | intel_fill_fb_info(struct drm_i915_private *dev_priv, | |
2182 | struct drm_framebuffer *fb) | |
2183 | { | |
2184 | struct intel_rotation_info *info = &to_intel_framebuffer(fb)->rot_info; | |
2185 | unsigned int tile_size, tile_width, tile_height, cpp; | |
50470bb0 | 2186 | |
d9b3288e VS |
2187 | tile_size = intel_tile_size(dev_priv); |
2188 | ||
2189 | cpp = drm_format_plane_cpp(fb->pixel_format, 0); | |
8d0deca8 VS |
2190 | intel_tile_dims(dev_priv, &tile_width, &tile_height, |
2191 | fb->modifier[0], cpp); | |
d9b3288e | 2192 | |
1663b9d6 VS |
2193 | info->plane[0].width = DIV_ROUND_UP(fb->pitches[0], tile_width * cpp); |
2194 | info->plane[0].height = DIV_ROUND_UP(fb->height, tile_height); | |
84fe03f7 | 2195 | |
89e3e142 | 2196 | if (info->pixel_format == DRM_FORMAT_NV12) { |
832be82f | 2197 | cpp = drm_format_plane_cpp(fb->pixel_format, 1); |
8d0deca8 VS |
2198 | intel_tile_dims(dev_priv, &tile_width, &tile_height, |
2199 | fb->modifier[1], cpp); | |
d9b3288e | 2200 | |
2d7a215f | 2201 | info->uv_offset = fb->offsets[1]; |
1663b9d6 VS |
2202 | info->plane[1].width = DIV_ROUND_UP(fb->pitches[1], tile_width * cpp); |
2203 | info->plane[1].height = DIV_ROUND_UP(fb->height / 2, tile_height); | |
89e3e142 | 2204 | } |
f64b98cd TU |
2205 | } |
2206 | ||
603525d7 | 2207 | static unsigned int intel_linear_alignment(const struct drm_i915_private *dev_priv) |
4e9a86b6 VS |
2208 | { |
2209 | if (INTEL_INFO(dev_priv)->gen >= 9) | |
2210 | return 256 * 1024; | |
985b8bb4 | 2211 | else if (IS_BROADWATER(dev_priv) || IS_CRESTLINE(dev_priv) || |
666a4537 | 2212 | IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) |
4e9a86b6 VS |
2213 | return 128 * 1024; |
2214 | else if (INTEL_INFO(dev_priv)->gen >= 4) | |
2215 | return 4 * 1024; | |
2216 | else | |
44c5905e | 2217 | return 0; |
4e9a86b6 VS |
2218 | } |
2219 | ||
603525d7 VS |
2220 | static unsigned int intel_surf_alignment(const struct drm_i915_private *dev_priv, |
2221 | uint64_t fb_modifier) | |
2222 | { | |
2223 | switch (fb_modifier) { | |
2224 | case DRM_FORMAT_MOD_NONE: | |
2225 | return intel_linear_alignment(dev_priv); | |
2226 | case I915_FORMAT_MOD_X_TILED: | |
2227 | if (INTEL_INFO(dev_priv)->gen >= 9) | |
2228 | return 256 * 1024; | |
2229 | return 0; | |
2230 | case I915_FORMAT_MOD_Y_TILED: | |
2231 | case I915_FORMAT_MOD_Yf_TILED: | |
2232 | return 1 * 1024 * 1024; | |
2233 | default: | |
2234 | MISSING_CASE(fb_modifier); | |
2235 | return 0; | |
2236 | } | |
2237 | } | |
2238 | ||
127bd2ac | 2239 | int |
3465c580 VS |
2240 | intel_pin_and_fence_fb_obj(struct drm_framebuffer *fb, |
2241 | unsigned int rotation) | |
6b95a207 | 2242 | { |
850c4cdc | 2243 | struct drm_device *dev = fb->dev; |
ce453d81 | 2244 | struct drm_i915_private *dev_priv = dev->dev_private; |
850c4cdc | 2245 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
f64b98cd | 2246 | struct i915_ggtt_view view; |
6b95a207 KH |
2247 | u32 alignment; |
2248 | int ret; | |
2249 | ||
ebcdd39e MR |
2250 | WARN_ON(!mutex_is_locked(&dev->struct_mutex)); |
2251 | ||
603525d7 | 2252 | alignment = intel_surf_alignment(dev_priv, fb->modifier[0]); |
6b95a207 | 2253 | |
3465c580 | 2254 | intel_fill_fb_ggtt_view(&view, fb, rotation); |
f64b98cd | 2255 | |
693db184 CW |
2256 | /* Note that the w/a also requires 64 PTE of padding following the |
2257 | * bo. We currently fill all unused PTE with the shadow page and so | |
2258 | * we should always have valid PTE following the scanout preventing | |
2259 | * the VT-d warning. | |
2260 | */ | |
2261 | if (need_vtd_wa(dev) && alignment < 256 * 1024) | |
2262 | alignment = 256 * 1024; | |
2263 | ||
d6dd6843 PZ |
2264 | /* |
2265 | * Global gtt pte registers are special registers which actually forward | |
2266 | * writes to a chunk of system memory. Which means that there is no risk | |
2267 | * that the register values disappear as soon as we call | |
2268 | * intel_runtime_pm_put(), so it is correct to wrap only the | |
2269 | * pin/unpin/fence and not more. | |
2270 | */ | |
2271 | intel_runtime_pm_get(dev_priv); | |
2272 | ||
7580d774 ML |
2273 | ret = i915_gem_object_pin_to_display_plane(obj, alignment, |
2274 | &view); | |
48b956c5 | 2275 | if (ret) |
b26a6b35 | 2276 | goto err_pm; |
6b95a207 KH |
2277 | |
2278 | /* Install a fence for tiled scan-out. Pre-i965 always needs a | |
2279 | * fence, whereas 965+ only requires a fence if using | |
2280 | * framebuffer compression. For simplicity, we always install | |
2281 | * a fence as the cost is not that onerous. | |
2282 | */ | |
9807216f VK |
2283 | if (view.type == I915_GGTT_VIEW_NORMAL) { |
2284 | ret = i915_gem_object_get_fence(obj); | |
2285 | if (ret == -EDEADLK) { | |
2286 | /* | |
2287 | * -EDEADLK means there are no free fences | |
2288 | * no pending flips. | |
2289 | * | |
2290 | * This is propagated to atomic, but it uses | |
2291 | * -EDEADLK to force a locking recovery, so | |
2292 | * change the returned error to -EBUSY. | |
2293 | */ | |
2294 | ret = -EBUSY; | |
2295 | goto err_unpin; | |
2296 | } else if (ret) | |
2297 | goto err_unpin; | |
1690e1eb | 2298 | |
9807216f VK |
2299 | i915_gem_object_pin_fence(obj); |
2300 | } | |
6b95a207 | 2301 | |
d6dd6843 | 2302 | intel_runtime_pm_put(dev_priv); |
6b95a207 | 2303 | return 0; |
48b956c5 CW |
2304 | |
2305 | err_unpin: | |
f64b98cd | 2306 | i915_gem_object_unpin_from_display_plane(obj, &view); |
b26a6b35 | 2307 | err_pm: |
d6dd6843 | 2308 | intel_runtime_pm_put(dev_priv); |
48b956c5 | 2309 | return ret; |
6b95a207 KH |
2310 | } |
2311 | ||
3465c580 | 2312 | static void intel_unpin_fb_obj(struct drm_framebuffer *fb, unsigned int rotation) |
1690e1eb | 2313 | { |
82bc3b2d | 2314 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
f64b98cd | 2315 | struct i915_ggtt_view view; |
82bc3b2d | 2316 | |
ebcdd39e MR |
2317 | WARN_ON(!mutex_is_locked(&obj->base.dev->struct_mutex)); |
2318 | ||
3465c580 | 2319 | intel_fill_fb_ggtt_view(&view, fb, rotation); |
f64b98cd | 2320 | |
9807216f VK |
2321 | if (view.type == I915_GGTT_VIEW_NORMAL) |
2322 | i915_gem_object_unpin_fence(obj); | |
2323 | ||
f64b98cd | 2324 | i915_gem_object_unpin_from_display_plane(obj, &view); |
1690e1eb CW |
2325 | } |
2326 | ||
29cf9491 VS |
2327 | /* |
2328 | * Adjust the tile offset by moving the difference into | |
2329 | * the x/y offsets. | |
2330 | * | |
2331 | * Input tile dimensions and pitch must already be | |
2332 | * rotated to match x and y, and in pixel units. | |
2333 | */ | |
2334 | static u32 intel_adjust_tile_offset(int *x, int *y, | |
2335 | unsigned int tile_width, | |
2336 | unsigned int tile_height, | |
2337 | unsigned int tile_size, | |
2338 | unsigned int pitch_tiles, | |
2339 | u32 old_offset, | |
2340 | u32 new_offset) | |
2341 | { | |
2342 | unsigned int tiles; | |
2343 | ||
2344 | WARN_ON(old_offset & (tile_size - 1)); | |
2345 | WARN_ON(new_offset & (tile_size - 1)); | |
2346 | WARN_ON(new_offset > old_offset); | |
2347 | ||
2348 | tiles = (old_offset - new_offset) / tile_size; | |
2349 | ||
2350 | *y += tiles / pitch_tiles * tile_height; | |
2351 | *x += tiles % pitch_tiles * tile_width; | |
2352 | ||
2353 | return new_offset; | |
2354 | } | |
2355 | ||
8d0deca8 VS |
2356 | /* |
2357 | * Computes the linear offset to the base tile and adjusts | |
2358 | * x, y. bytes per pixel is assumed to be a power-of-two. | |
2359 | * | |
2360 | * In the 90/270 rotated case, x and y are assumed | |
2361 | * to be already rotated to match the rotated GTT view, and | |
2362 | * pitch is the tile_height aligned framebuffer height. | |
2363 | */ | |
4f2d9934 VS |
2364 | u32 intel_compute_tile_offset(int *x, int *y, |
2365 | const struct drm_framebuffer *fb, int plane, | |
8d0deca8 VS |
2366 | unsigned int pitch, |
2367 | unsigned int rotation) | |
c2c75131 | 2368 | { |
4f2d9934 VS |
2369 | const struct drm_i915_private *dev_priv = to_i915(fb->dev); |
2370 | uint64_t fb_modifier = fb->modifier[plane]; | |
2371 | unsigned int cpp = drm_format_plane_cpp(fb->pixel_format, plane); | |
29cf9491 VS |
2372 | u32 offset, offset_aligned, alignment; |
2373 | ||
2374 | alignment = intel_surf_alignment(dev_priv, fb_modifier); | |
2375 | if (alignment) | |
2376 | alignment--; | |
2377 | ||
b5c65338 | 2378 | if (fb_modifier != DRM_FORMAT_MOD_NONE) { |
d843310d | 2379 | unsigned int tile_size, tile_width, tile_height; |
8d0deca8 | 2380 | unsigned int tile_rows, tiles, pitch_tiles; |
c2c75131 | 2381 | |
d843310d | 2382 | tile_size = intel_tile_size(dev_priv); |
8d0deca8 VS |
2383 | intel_tile_dims(dev_priv, &tile_width, &tile_height, |
2384 | fb_modifier, cpp); | |
2385 | ||
2386 | if (intel_rotation_90_or_270(rotation)) { | |
2387 | pitch_tiles = pitch / tile_height; | |
2388 | swap(tile_width, tile_height); | |
2389 | } else { | |
2390 | pitch_tiles = pitch / (tile_width * cpp); | |
2391 | } | |
d843310d VS |
2392 | |
2393 | tile_rows = *y / tile_height; | |
2394 | *y %= tile_height; | |
c2c75131 | 2395 | |
8d0deca8 VS |
2396 | tiles = *x / tile_width; |
2397 | *x %= tile_width; | |
bc752862 | 2398 | |
29cf9491 VS |
2399 | offset = (tile_rows * pitch_tiles + tiles) * tile_size; |
2400 | offset_aligned = offset & ~alignment; | |
bc752862 | 2401 | |
29cf9491 VS |
2402 | intel_adjust_tile_offset(x, y, tile_width, tile_height, |
2403 | tile_size, pitch_tiles, | |
2404 | offset, offset_aligned); | |
2405 | } else { | |
bc752862 | 2406 | offset = *y * pitch + *x * cpp; |
29cf9491 VS |
2407 | offset_aligned = offset & ~alignment; |
2408 | ||
4e9a86b6 VS |
2409 | *y = (offset & alignment) / pitch; |
2410 | *x = ((offset & alignment) - *y * pitch) / cpp; | |
bc752862 | 2411 | } |
29cf9491 VS |
2412 | |
2413 | return offset_aligned; | |
c2c75131 DV |
2414 | } |
2415 | ||
b35d63fa | 2416 | static int i9xx_format_to_fourcc(int format) |
46f297fb JB |
2417 | { |
2418 | switch (format) { | |
2419 | case DISPPLANE_8BPP: | |
2420 | return DRM_FORMAT_C8; | |
2421 | case DISPPLANE_BGRX555: | |
2422 | return DRM_FORMAT_XRGB1555; | |
2423 | case DISPPLANE_BGRX565: | |
2424 | return DRM_FORMAT_RGB565; | |
2425 | default: | |
2426 | case DISPPLANE_BGRX888: | |
2427 | return DRM_FORMAT_XRGB8888; | |
2428 | case DISPPLANE_RGBX888: | |
2429 | return DRM_FORMAT_XBGR8888; | |
2430 | case DISPPLANE_BGRX101010: | |
2431 | return DRM_FORMAT_XRGB2101010; | |
2432 | case DISPPLANE_RGBX101010: | |
2433 | return DRM_FORMAT_XBGR2101010; | |
2434 | } | |
2435 | } | |
2436 | ||
bc8d7dff DL |
2437 | static int skl_format_to_fourcc(int format, bool rgb_order, bool alpha) |
2438 | { | |
2439 | switch (format) { | |
2440 | case PLANE_CTL_FORMAT_RGB_565: | |
2441 | return DRM_FORMAT_RGB565; | |
2442 | default: | |
2443 | case PLANE_CTL_FORMAT_XRGB_8888: | |
2444 | if (rgb_order) { | |
2445 | if (alpha) | |
2446 | return DRM_FORMAT_ABGR8888; | |
2447 | else | |
2448 | return DRM_FORMAT_XBGR8888; | |
2449 | } else { | |
2450 | if (alpha) | |
2451 | return DRM_FORMAT_ARGB8888; | |
2452 | else | |
2453 | return DRM_FORMAT_XRGB8888; | |
2454 | } | |
2455 | case PLANE_CTL_FORMAT_XRGB_2101010: | |
2456 | if (rgb_order) | |
2457 | return DRM_FORMAT_XBGR2101010; | |
2458 | else | |
2459 | return DRM_FORMAT_XRGB2101010; | |
2460 | } | |
2461 | } | |
2462 | ||
5724dbd1 | 2463 | static bool |
f6936e29 DV |
2464 | intel_alloc_initial_plane_obj(struct intel_crtc *crtc, |
2465 | struct intel_initial_plane_config *plane_config) | |
46f297fb JB |
2466 | { |
2467 | struct drm_device *dev = crtc->base.dev; | |
3badb49f | 2468 | struct drm_i915_private *dev_priv = to_i915(dev); |
72e96d64 | 2469 | struct i915_ggtt *ggtt = &dev_priv->ggtt; |
46f297fb JB |
2470 | struct drm_i915_gem_object *obj = NULL; |
2471 | struct drm_mode_fb_cmd2 mode_cmd = { 0 }; | |
2d14030b | 2472 | struct drm_framebuffer *fb = &plane_config->fb->base; |
f37b5c2b DV |
2473 | u32 base_aligned = round_down(plane_config->base, PAGE_SIZE); |
2474 | u32 size_aligned = round_up(plane_config->base + plane_config->size, | |
2475 | PAGE_SIZE); | |
2476 | ||
2477 | size_aligned -= base_aligned; | |
46f297fb | 2478 | |
ff2652ea CW |
2479 | if (plane_config->size == 0) |
2480 | return false; | |
2481 | ||
3badb49f PZ |
2482 | /* If the FB is too big, just don't use it since fbdev is not very |
2483 | * important and we should probably use that space with FBC or other | |
2484 | * features. */ | |
72e96d64 | 2485 | if (size_aligned * 2 > ggtt->stolen_usable_size) |
3badb49f PZ |
2486 | return false; |
2487 | ||
12c83d99 TU |
2488 | mutex_lock(&dev->struct_mutex); |
2489 | ||
f37b5c2b DV |
2490 | obj = i915_gem_object_create_stolen_for_preallocated(dev, |
2491 | base_aligned, | |
2492 | base_aligned, | |
2493 | size_aligned); | |
12c83d99 TU |
2494 | if (!obj) { |
2495 | mutex_unlock(&dev->struct_mutex); | |
484b41dd | 2496 | return false; |
12c83d99 | 2497 | } |
46f297fb | 2498 | |
49af449b DL |
2499 | obj->tiling_mode = plane_config->tiling; |
2500 | if (obj->tiling_mode == I915_TILING_X) | |
6bf129df | 2501 | obj->stride = fb->pitches[0]; |
46f297fb | 2502 | |
6bf129df DL |
2503 | mode_cmd.pixel_format = fb->pixel_format; |
2504 | mode_cmd.width = fb->width; | |
2505 | mode_cmd.height = fb->height; | |
2506 | mode_cmd.pitches[0] = fb->pitches[0]; | |
18c5247e DV |
2507 | mode_cmd.modifier[0] = fb->modifier[0]; |
2508 | mode_cmd.flags = DRM_MODE_FB_MODIFIERS; | |
46f297fb | 2509 | |
6bf129df | 2510 | if (intel_framebuffer_init(dev, to_intel_framebuffer(fb), |
484b41dd | 2511 | &mode_cmd, obj)) { |
46f297fb JB |
2512 | DRM_DEBUG_KMS("intel fb init failed\n"); |
2513 | goto out_unref_obj; | |
2514 | } | |
12c83d99 | 2515 | |
46f297fb | 2516 | mutex_unlock(&dev->struct_mutex); |
484b41dd | 2517 | |
f6936e29 | 2518 | DRM_DEBUG_KMS("initial plane fb obj %p\n", obj); |
484b41dd | 2519 | return true; |
46f297fb JB |
2520 | |
2521 | out_unref_obj: | |
2522 | drm_gem_object_unreference(&obj->base); | |
2523 | mutex_unlock(&dev->struct_mutex); | |
484b41dd JB |
2524 | return false; |
2525 | } | |
2526 | ||
afd65eb4 MR |
2527 | /* Update plane->state->fb to match plane->fb after driver-internal updates */ |
2528 | static void | |
2529 | update_state_fb(struct drm_plane *plane) | |
2530 | { | |
2531 | if (plane->fb == plane->state->fb) | |
2532 | return; | |
2533 | ||
2534 | if (plane->state->fb) | |
2535 | drm_framebuffer_unreference(plane->state->fb); | |
2536 | plane->state->fb = plane->fb; | |
2537 | if (plane->state->fb) | |
2538 | drm_framebuffer_reference(plane->state->fb); | |
2539 | } | |
2540 | ||
5724dbd1 | 2541 | static void |
f6936e29 DV |
2542 | intel_find_initial_plane_obj(struct intel_crtc *intel_crtc, |
2543 | struct intel_initial_plane_config *plane_config) | |
484b41dd JB |
2544 | { |
2545 | struct drm_device *dev = intel_crtc->base.dev; | |
d9ceb816 | 2546 | struct drm_i915_private *dev_priv = dev->dev_private; |
484b41dd JB |
2547 | struct drm_crtc *c; |
2548 | struct intel_crtc *i; | |
2ff8fde1 | 2549 | struct drm_i915_gem_object *obj; |
88595ac9 | 2550 | struct drm_plane *primary = intel_crtc->base.primary; |
be5651f2 | 2551 | struct drm_plane_state *plane_state = primary->state; |
200757f5 MR |
2552 | struct drm_crtc_state *crtc_state = intel_crtc->base.state; |
2553 | struct intel_plane *intel_plane = to_intel_plane(primary); | |
0a8d8a86 MR |
2554 | struct intel_plane_state *intel_state = |
2555 | to_intel_plane_state(plane_state); | |
88595ac9 | 2556 | struct drm_framebuffer *fb; |
484b41dd | 2557 | |
2d14030b | 2558 | if (!plane_config->fb) |
484b41dd JB |
2559 | return; |
2560 | ||
f6936e29 | 2561 | if (intel_alloc_initial_plane_obj(intel_crtc, plane_config)) { |
88595ac9 DV |
2562 | fb = &plane_config->fb->base; |
2563 | goto valid_fb; | |
f55548b5 | 2564 | } |
484b41dd | 2565 | |
2d14030b | 2566 | kfree(plane_config->fb); |
484b41dd JB |
2567 | |
2568 | /* | |
2569 | * Failed to alloc the obj, check to see if we should share | |
2570 | * an fb with another CRTC instead | |
2571 | */ | |
70e1e0ec | 2572 | for_each_crtc(dev, c) { |
484b41dd JB |
2573 | i = to_intel_crtc(c); |
2574 | ||
2575 | if (c == &intel_crtc->base) | |
2576 | continue; | |
2577 | ||
2ff8fde1 MR |
2578 | if (!i->active) |
2579 | continue; | |
2580 | ||
88595ac9 DV |
2581 | fb = c->primary->fb; |
2582 | if (!fb) | |
484b41dd JB |
2583 | continue; |
2584 | ||
88595ac9 | 2585 | obj = intel_fb_obj(fb); |
2ff8fde1 | 2586 | if (i915_gem_obj_ggtt_offset(obj) == plane_config->base) { |
88595ac9 DV |
2587 | drm_framebuffer_reference(fb); |
2588 | goto valid_fb; | |
484b41dd JB |
2589 | } |
2590 | } | |
88595ac9 | 2591 | |
200757f5 MR |
2592 | /* |
2593 | * We've failed to reconstruct the BIOS FB. Current display state | |
2594 | * indicates that the primary plane is visible, but has a NULL FB, | |
2595 | * which will lead to problems later if we don't fix it up. The | |
2596 | * simplest solution is to just disable the primary plane now and | |
2597 | * pretend the BIOS never had it enabled. | |
2598 | */ | |
2599 | to_intel_plane_state(plane_state)->visible = false; | |
2600 | crtc_state->plane_mask &= ~(1 << drm_plane_index(primary)); | |
2622a081 | 2601 | intel_pre_disable_primary_noatomic(&intel_crtc->base); |
200757f5 MR |
2602 | intel_plane->disable_plane(primary, &intel_crtc->base); |
2603 | ||
88595ac9 DV |
2604 | return; |
2605 | ||
2606 | valid_fb: | |
f44e2659 VS |
2607 | plane_state->src_x = 0; |
2608 | plane_state->src_y = 0; | |
be5651f2 ML |
2609 | plane_state->src_w = fb->width << 16; |
2610 | plane_state->src_h = fb->height << 16; | |
2611 | ||
f44e2659 VS |
2612 | plane_state->crtc_x = 0; |
2613 | plane_state->crtc_y = 0; | |
be5651f2 ML |
2614 | plane_state->crtc_w = fb->width; |
2615 | plane_state->crtc_h = fb->height; | |
2616 | ||
0a8d8a86 MR |
2617 | intel_state->src.x1 = plane_state->src_x; |
2618 | intel_state->src.y1 = plane_state->src_y; | |
2619 | intel_state->src.x2 = plane_state->src_x + plane_state->src_w; | |
2620 | intel_state->src.y2 = plane_state->src_y + plane_state->src_h; | |
2621 | intel_state->dst.x1 = plane_state->crtc_x; | |
2622 | intel_state->dst.y1 = plane_state->crtc_y; | |
2623 | intel_state->dst.x2 = plane_state->crtc_x + plane_state->crtc_w; | |
2624 | intel_state->dst.y2 = plane_state->crtc_y + plane_state->crtc_h; | |
2625 | ||
88595ac9 DV |
2626 | obj = intel_fb_obj(fb); |
2627 | if (obj->tiling_mode != I915_TILING_NONE) | |
2628 | dev_priv->preserve_bios_swizzle = true; | |
2629 | ||
be5651f2 ML |
2630 | drm_framebuffer_reference(fb); |
2631 | primary->fb = primary->state->fb = fb; | |
36750f28 | 2632 | primary->crtc = primary->state->crtc = &intel_crtc->base; |
36750f28 | 2633 | intel_crtc->base.state->plane_mask |= (1 << drm_plane_index(primary)); |
a9ff8714 | 2634 | obj->frontbuffer_bits |= to_intel_plane(primary)->frontbuffer_bit; |
46f297fb JB |
2635 | } |
2636 | ||
a8d201af ML |
2637 | static void i9xx_update_primary_plane(struct drm_plane *primary, |
2638 | const struct intel_crtc_state *crtc_state, | |
2639 | const struct intel_plane_state *plane_state) | |
81255565 | 2640 | { |
a8d201af | 2641 | struct drm_device *dev = primary->dev; |
81255565 | 2642 | struct drm_i915_private *dev_priv = dev->dev_private; |
a8d201af ML |
2643 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc); |
2644 | struct drm_framebuffer *fb = plane_state->base.fb; | |
2645 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); | |
81255565 | 2646 | int plane = intel_crtc->plane; |
54ea9da8 | 2647 | u32 linear_offset; |
81255565 | 2648 | u32 dspcntr; |
f0f59a00 | 2649 | i915_reg_t reg = DSPCNTR(plane); |
8d0deca8 | 2650 | unsigned int rotation = plane_state->base.rotation; |
ac484963 | 2651 | int cpp = drm_format_plane_cpp(fb->pixel_format, 0); |
54ea9da8 VS |
2652 | int x = plane_state->src.x1 >> 16; |
2653 | int y = plane_state->src.y1 >> 16; | |
c9ba6fad | 2654 | |
f45651ba VS |
2655 | dspcntr = DISPPLANE_GAMMA_ENABLE; |
2656 | ||
fdd508a6 | 2657 | dspcntr |= DISPLAY_PLANE_ENABLE; |
f45651ba VS |
2658 | |
2659 | if (INTEL_INFO(dev)->gen < 4) { | |
2660 | if (intel_crtc->pipe == PIPE_B) | |
2661 | dspcntr |= DISPPLANE_SEL_PIPE_B; | |
2662 | ||
2663 | /* pipesrc and dspsize control the size that is scaled from, | |
2664 | * which should always be the user's requested size. | |
2665 | */ | |
2666 | I915_WRITE(DSPSIZE(plane), | |
a8d201af ML |
2667 | ((crtc_state->pipe_src_h - 1) << 16) | |
2668 | (crtc_state->pipe_src_w - 1)); | |
f45651ba | 2669 | I915_WRITE(DSPPOS(plane), 0); |
c14b0485 VS |
2670 | } else if (IS_CHERRYVIEW(dev) && plane == PLANE_B) { |
2671 | I915_WRITE(PRIMSIZE(plane), | |
a8d201af ML |
2672 | ((crtc_state->pipe_src_h - 1) << 16) | |
2673 | (crtc_state->pipe_src_w - 1)); | |
c14b0485 VS |
2674 | I915_WRITE(PRIMPOS(plane), 0); |
2675 | I915_WRITE(PRIMCNSTALPHA(plane), 0); | |
f45651ba | 2676 | } |
81255565 | 2677 | |
57779d06 VS |
2678 | switch (fb->pixel_format) { |
2679 | case DRM_FORMAT_C8: | |
81255565 JB |
2680 | dspcntr |= DISPPLANE_8BPP; |
2681 | break; | |
57779d06 | 2682 | case DRM_FORMAT_XRGB1555: |
57779d06 | 2683 | dspcntr |= DISPPLANE_BGRX555; |
81255565 | 2684 | break; |
57779d06 VS |
2685 | case DRM_FORMAT_RGB565: |
2686 | dspcntr |= DISPPLANE_BGRX565; | |
2687 | break; | |
2688 | case DRM_FORMAT_XRGB8888: | |
57779d06 VS |
2689 | dspcntr |= DISPPLANE_BGRX888; |
2690 | break; | |
2691 | case DRM_FORMAT_XBGR8888: | |
57779d06 VS |
2692 | dspcntr |= DISPPLANE_RGBX888; |
2693 | break; | |
2694 | case DRM_FORMAT_XRGB2101010: | |
57779d06 VS |
2695 | dspcntr |= DISPPLANE_BGRX101010; |
2696 | break; | |
2697 | case DRM_FORMAT_XBGR2101010: | |
57779d06 | 2698 | dspcntr |= DISPPLANE_RGBX101010; |
81255565 JB |
2699 | break; |
2700 | default: | |
baba133a | 2701 | BUG(); |
81255565 | 2702 | } |
57779d06 | 2703 | |
f45651ba VS |
2704 | if (INTEL_INFO(dev)->gen >= 4 && |
2705 | obj->tiling_mode != I915_TILING_NONE) | |
2706 | dspcntr |= DISPPLANE_TILED; | |
81255565 | 2707 | |
de1aa629 VS |
2708 | if (IS_G4X(dev)) |
2709 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; | |
2710 | ||
ac484963 | 2711 | linear_offset = y * fb->pitches[0] + x * cpp; |
81255565 | 2712 | |
c2c75131 DV |
2713 | if (INTEL_INFO(dev)->gen >= 4) { |
2714 | intel_crtc->dspaddr_offset = | |
4f2d9934 | 2715 | intel_compute_tile_offset(&x, &y, fb, 0, |
8d0deca8 | 2716 | fb->pitches[0], rotation); |
c2c75131 DV |
2717 | linear_offset -= intel_crtc->dspaddr_offset; |
2718 | } else { | |
e506a0c6 | 2719 | intel_crtc->dspaddr_offset = linear_offset; |
c2c75131 | 2720 | } |
e506a0c6 | 2721 | |
8d0deca8 | 2722 | if (rotation == BIT(DRM_ROTATE_180)) { |
48404c1e SJ |
2723 | dspcntr |= DISPPLANE_ROTATE_180; |
2724 | ||
a8d201af ML |
2725 | x += (crtc_state->pipe_src_w - 1); |
2726 | y += (crtc_state->pipe_src_h - 1); | |
48404c1e SJ |
2727 | |
2728 | /* Finding the last pixel of the last line of the display | |
2729 | data and adding to linear_offset*/ | |
2730 | linear_offset += | |
a8d201af | 2731 | (crtc_state->pipe_src_h - 1) * fb->pitches[0] + |
ac484963 | 2732 | (crtc_state->pipe_src_w - 1) * cpp; |
48404c1e SJ |
2733 | } |
2734 | ||
2db3366b PZ |
2735 | intel_crtc->adjusted_x = x; |
2736 | intel_crtc->adjusted_y = y; | |
2737 | ||
48404c1e SJ |
2738 | I915_WRITE(reg, dspcntr); |
2739 | ||
01f2c773 | 2740 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
a6c45cf0 | 2741 | if (INTEL_INFO(dev)->gen >= 4) { |
85ba7b7d DV |
2742 | I915_WRITE(DSPSURF(plane), |
2743 | i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset); | |
5eddb70b | 2744 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
e506a0c6 | 2745 | I915_WRITE(DSPLINOFF(plane), linear_offset); |
5eddb70b | 2746 | } else |
f343c5f6 | 2747 | I915_WRITE(DSPADDR(plane), i915_gem_obj_ggtt_offset(obj) + linear_offset); |
5eddb70b | 2748 | POSTING_READ(reg); |
17638cd6 JB |
2749 | } |
2750 | ||
a8d201af ML |
2751 | static void i9xx_disable_primary_plane(struct drm_plane *primary, |
2752 | struct drm_crtc *crtc) | |
17638cd6 JB |
2753 | { |
2754 | struct drm_device *dev = crtc->dev; | |
2755 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2756 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
17638cd6 | 2757 | int plane = intel_crtc->plane; |
f45651ba | 2758 | |
a8d201af ML |
2759 | I915_WRITE(DSPCNTR(plane), 0); |
2760 | if (INTEL_INFO(dev_priv)->gen >= 4) | |
fdd508a6 | 2761 | I915_WRITE(DSPSURF(plane), 0); |
a8d201af ML |
2762 | else |
2763 | I915_WRITE(DSPADDR(plane), 0); | |
2764 | POSTING_READ(DSPCNTR(plane)); | |
2765 | } | |
c9ba6fad | 2766 | |
a8d201af ML |
2767 | static void ironlake_update_primary_plane(struct drm_plane *primary, |
2768 | const struct intel_crtc_state *crtc_state, | |
2769 | const struct intel_plane_state *plane_state) | |
2770 | { | |
2771 | struct drm_device *dev = primary->dev; | |
2772 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2773 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc); | |
2774 | struct drm_framebuffer *fb = plane_state->base.fb; | |
2775 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); | |
2776 | int plane = intel_crtc->plane; | |
54ea9da8 | 2777 | u32 linear_offset; |
a8d201af ML |
2778 | u32 dspcntr; |
2779 | i915_reg_t reg = DSPCNTR(plane); | |
8d0deca8 | 2780 | unsigned int rotation = plane_state->base.rotation; |
ac484963 | 2781 | int cpp = drm_format_plane_cpp(fb->pixel_format, 0); |
a8d201af ML |
2782 | int x = plane_state->src.x1 >> 16; |
2783 | int y = plane_state->src.y1 >> 16; | |
c9ba6fad | 2784 | |
f45651ba | 2785 | dspcntr = DISPPLANE_GAMMA_ENABLE; |
fdd508a6 | 2786 | dspcntr |= DISPLAY_PLANE_ENABLE; |
f45651ba VS |
2787 | |
2788 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) | |
2789 | dspcntr |= DISPPLANE_PIPE_CSC_ENABLE; | |
17638cd6 | 2790 | |
57779d06 VS |
2791 | switch (fb->pixel_format) { |
2792 | case DRM_FORMAT_C8: | |
17638cd6 JB |
2793 | dspcntr |= DISPPLANE_8BPP; |
2794 | break; | |
57779d06 VS |
2795 | case DRM_FORMAT_RGB565: |
2796 | dspcntr |= DISPPLANE_BGRX565; | |
17638cd6 | 2797 | break; |
57779d06 | 2798 | case DRM_FORMAT_XRGB8888: |
57779d06 VS |
2799 | dspcntr |= DISPPLANE_BGRX888; |
2800 | break; | |
2801 | case DRM_FORMAT_XBGR8888: | |
57779d06 VS |
2802 | dspcntr |= DISPPLANE_RGBX888; |
2803 | break; | |
2804 | case DRM_FORMAT_XRGB2101010: | |
57779d06 VS |
2805 | dspcntr |= DISPPLANE_BGRX101010; |
2806 | break; | |
2807 | case DRM_FORMAT_XBGR2101010: | |
57779d06 | 2808 | dspcntr |= DISPPLANE_RGBX101010; |
17638cd6 JB |
2809 | break; |
2810 | default: | |
baba133a | 2811 | BUG(); |
17638cd6 JB |
2812 | } |
2813 | ||
2814 | if (obj->tiling_mode != I915_TILING_NONE) | |
2815 | dspcntr |= DISPPLANE_TILED; | |
17638cd6 | 2816 | |
f45651ba | 2817 | if (!IS_HASWELL(dev) && !IS_BROADWELL(dev)) |
1f5d76db | 2818 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; |
17638cd6 | 2819 | |
ac484963 | 2820 | linear_offset = y * fb->pitches[0] + x * cpp; |
c2c75131 | 2821 | intel_crtc->dspaddr_offset = |
4f2d9934 | 2822 | intel_compute_tile_offset(&x, &y, fb, 0, |
8d0deca8 | 2823 | fb->pitches[0], rotation); |
c2c75131 | 2824 | linear_offset -= intel_crtc->dspaddr_offset; |
8d0deca8 | 2825 | if (rotation == BIT(DRM_ROTATE_180)) { |
48404c1e SJ |
2826 | dspcntr |= DISPPLANE_ROTATE_180; |
2827 | ||
2828 | if (!IS_HASWELL(dev) && !IS_BROADWELL(dev)) { | |
a8d201af ML |
2829 | x += (crtc_state->pipe_src_w - 1); |
2830 | y += (crtc_state->pipe_src_h - 1); | |
48404c1e SJ |
2831 | |
2832 | /* Finding the last pixel of the last line of the display | |
2833 | data and adding to linear_offset*/ | |
2834 | linear_offset += | |
a8d201af | 2835 | (crtc_state->pipe_src_h - 1) * fb->pitches[0] + |
ac484963 | 2836 | (crtc_state->pipe_src_w - 1) * cpp; |
48404c1e SJ |
2837 | } |
2838 | } | |
2839 | ||
2db3366b PZ |
2840 | intel_crtc->adjusted_x = x; |
2841 | intel_crtc->adjusted_y = y; | |
2842 | ||
48404c1e | 2843 | I915_WRITE(reg, dspcntr); |
17638cd6 | 2844 | |
01f2c773 | 2845 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
85ba7b7d DV |
2846 | I915_WRITE(DSPSURF(plane), |
2847 | i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset); | |
b3dc685e | 2848 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) { |
bc1c91eb DL |
2849 | I915_WRITE(DSPOFFSET(plane), (y << 16) | x); |
2850 | } else { | |
2851 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); | |
2852 | I915_WRITE(DSPLINOFF(plane), linear_offset); | |
2853 | } | |
17638cd6 | 2854 | POSTING_READ(reg); |
17638cd6 JB |
2855 | } |
2856 | ||
7b49f948 VS |
2857 | u32 intel_fb_stride_alignment(const struct drm_i915_private *dev_priv, |
2858 | uint64_t fb_modifier, uint32_t pixel_format) | |
b321803d | 2859 | { |
7b49f948 | 2860 | if (fb_modifier == DRM_FORMAT_MOD_NONE) { |
b321803d | 2861 | return 64; |
7b49f948 VS |
2862 | } else { |
2863 | int cpp = drm_format_plane_cpp(pixel_format, 0); | |
2864 | ||
27ba3910 | 2865 | return intel_tile_width_bytes(dev_priv, fb_modifier, cpp); |
b321803d DL |
2866 | } |
2867 | } | |
2868 | ||
44eb0cb9 MK |
2869 | u32 intel_plane_obj_offset(struct intel_plane *intel_plane, |
2870 | struct drm_i915_gem_object *obj, | |
2871 | unsigned int plane) | |
121920fa | 2872 | { |
ce7f1728 | 2873 | struct i915_ggtt_view view; |
dedf278c | 2874 | struct i915_vma *vma; |
44eb0cb9 | 2875 | u64 offset; |
121920fa | 2876 | |
e7941294 | 2877 | intel_fill_fb_ggtt_view(&view, intel_plane->base.state->fb, |
3465c580 | 2878 | intel_plane->base.state->rotation); |
121920fa | 2879 | |
ce7f1728 | 2880 | vma = i915_gem_obj_to_ggtt_view(obj, &view); |
dedf278c | 2881 | if (WARN(!vma, "ggtt vma for display object not found! (view=%u)\n", |
ce7f1728 | 2882 | view.type)) |
dedf278c TU |
2883 | return -1; |
2884 | ||
44eb0cb9 | 2885 | offset = vma->node.start; |
dedf278c TU |
2886 | |
2887 | if (plane == 1) { | |
7723f47d | 2888 | offset += vma->ggtt_view.params.rotated.uv_start_page * |
dedf278c TU |
2889 | PAGE_SIZE; |
2890 | } | |
2891 | ||
44eb0cb9 MK |
2892 | WARN_ON(upper_32_bits(offset)); |
2893 | ||
2894 | return lower_32_bits(offset); | |
121920fa TU |
2895 | } |
2896 | ||
e435d6e5 ML |
2897 | static void skl_detach_scaler(struct intel_crtc *intel_crtc, int id) |
2898 | { | |
2899 | struct drm_device *dev = intel_crtc->base.dev; | |
2900 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2901 | ||
2902 | I915_WRITE(SKL_PS_CTRL(intel_crtc->pipe, id), 0); | |
2903 | I915_WRITE(SKL_PS_WIN_POS(intel_crtc->pipe, id), 0); | |
2904 | I915_WRITE(SKL_PS_WIN_SZ(intel_crtc->pipe, id), 0); | |
e435d6e5 ML |
2905 | } |
2906 | ||
a1b2278e CK |
2907 | /* |
2908 | * This function detaches (aka. unbinds) unused scalers in hardware | |
2909 | */ | |
0583236e | 2910 | static void skl_detach_scalers(struct intel_crtc *intel_crtc) |
a1b2278e | 2911 | { |
a1b2278e CK |
2912 | struct intel_crtc_scaler_state *scaler_state; |
2913 | int i; | |
2914 | ||
a1b2278e CK |
2915 | scaler_state = &intel_crtc->config->scaler_state; |
2916 | ||
2917 | /* loop through and disable scalers that aren't in use */ | |
2918 | for (i = 0; i < intel_crtc->num_scalers; i++) { | |
e435d6e5 ML |
2919 | if (!scaler_state->scalers[i].in_use) |
2920 | skl_detach_scaler(intel_crtc, i); | |
a1b2278e CK |
2921 | } |
2922 | } | |
2923 | ||
6156a456 | 2924 | u32 skl_plane_ctl_format(uint32_t pixel_format) |
70d21f0e | 2925 | { |
6156a456 | 2926 | switch (pixel_format) { |
d161cf7a | 2927 | case DRM_FORMAT_C8: |
c34ce3d1 | 2928 | return PLANE_CTL_FORMAT_INDEXED; |
70d21f0e | 2929 | case DRM_FORMAT_RGB565: |
c34ce3d1 | 2930 | return PLANE_CTL_FORMAT_RGB_565; |
70d21f0e | 2931 | case DRM_FORMAT_XBGR8888: |
c34ce3d1 | 2932 | return PLANE_CTL_FORMAT_XRGB_8888 | PLANE_CTL_ORDER_RGBX; |
6156a456 | 2933 | case DRM_FORMAT_XRGB8888: |
c34ce3d1 | 2934 | return PLANE_CTL_FORMAT_XRGB_8888; |
6156a456 CK |
2935 | /* |
2936 | * XXX: For ARBG/ABGR formats we default to expecting scanout buffers | |
2937 | * to be already pre-multiplied. We need to add a knob (or a different | |
2938 | * DRM_FORMAT) for user-space to configure that. | |
2939 | */ | |
f75fb42a | 2940 | case DRM_FORMAT_ABGR8888: |
c34ce3d1 | 2941 | return PLANE_CTL_FORMAT_XRGB_8888 | PLANE_CTL_ORDER_RGBX | |
6156a456 | 2942 | PLANE_CTL_ALPHA_SW_PREMULTIPLY; |
6156a456 | 2943 | case DRM_FORMAT_ARGB8888: |
c34ce3d1 | 2944 | return PLANE_CTL_FORMAT_XRGB_8888 | |
6156a456 | 2945 | PLANE_CTL_ALPHA_SW_PREMULTIPLY; |
70d21f0e | 2946 | case DRM_FORMAT_XRGB2101010: |
c34ce3d1 | 2947 | return PLANE_CTL_FORMAT_XRGB_2101010; |
70d21f0e | 2948 | case DRM_FORMAT_XBGR2101010: |
c34ce3d1 | 2949 | return PLANE_CTL_ORDER_RGBX | PLANE_CTL_FORMAT_XRGB_2101010; |
6156a456 | 2950 | case DRM_FORMAT_YUYV: |
c34ce3d1 | 2951 | return PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_YUYV; |
6156a456 | 2952 | case DRM_FORMAT_YVYU: |
c34ce3d1 | 2953 | return PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_YVYU; |
6156a456 | 2954 | case DRM_FORMAT_UYVY: |
c34ce3d1 | 2955 | return PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_UYVY; |
6156a456 | 2956 | case DRM_FORMAT_VYUY: |
c34ce3d1 | 2957 | return PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_VYUY; |
70d21f0e | 2958 | default: |
4249eeef | 2959 | MISSING_CASE(pixel_format); |
70d21f0e | 2960 | } |
8cfcba41 | 2961 | |
c34ce3d1 | 2962 | return 0; |
6156a456 | 2963 | } |
70d21f0e | 2964 | |
6156a456 CK |
2965 | u32 skl_plane_ctl_tiling(uint64_t fb_modifier) |
2966 | { | |
6156a456 | 2967 | switch (fb_modifier) { |
30af77c4 | 2968 | case DRM_FORMAT_MOD_NONE: |
70d21f0e | 2969 | break; |
30af77c4 | 2970 | case I915_FORMAT_MOD_X_TILED: |
c34ce3d1 | 2971 | return PLANE_CTL_TILED_X; |
b321803d | 2972 | case I915_FORMAT_MOD_Y_TILED: |
c34ce3d1 | 2973 | return PLANE_CTL_TILED_Y; |
b321803d | 2974 | case I915_FORMAT_MOD_Yf_TILED: |
c34ce3d1 | 2975 | return PLANE_CTL_TILED_YF; |
70d21f0e | 2976 | default: |
6156a456 | 2977 | MISSING_CASE(fb_modifier); |
70d21f0e | 2978 | } |
8cfcba41 | 2979 | |
c34ce3d1 | 2980 | return 0; |
6156a456 | 2981 | } |
70d21f0e | 2982 | |
6156a456 CK |
2983 | u32 skl_plane_ctl_rotation(unsigned int rotation) |
2984 | { | |
3b7a5119 | 2985 | switch (rotation) { |
6156a456 CK |
2986 | case BIT(DRM_ROTATE_0): |
2987 | break; | |
1e8df167 SJ |
2988 | /* |
2989 | * DRM_ROTATE_ is counter clockwise to stay compatible with Xrandr | |
2990 | * while i915 HW rotation is clockwise, thats why this swapping. | |
2991 | */ | |
3b7a5119 | 2992 | case BIT(DRM_ROTATE_90): |
1e8df167 | 2993 | return PLANE_CTL_ROTATE_270; |
3b7a5119 | 2994 | case BIT(DRM_ROTATE_180): |
c34ce3d1 | 2995 | return PLANE_CTL_ROTATE_180; |
3b7a5119 | 2996 | case BIT(DRM_ROTATE_270): |
1e8df167 | 2997 | return PLANE_CTL_ROTATE_90; |
6156a456 CK |
2998 | default: |
2999 | MISSING_CASE(rotation); | |
3000 | } | |
3001 | ||
c34ce3d1 | 3002 | return 0; |
6156a456 CK |
3003 | } |
3004 | ||
a8d201af ML |
3005 | static void skylake_update_primary_plane(struct drm_plane *plane, |
3006 | const struct intel_crtc_state *crtc_state, | |
3007 | const struct intel_plane_state *plane_state) | |
6156a456 | 3008 | { |
a8d201af | 3009 | struct drm_device *dev = plane->dev; |
6156a456 | 3010 | struct drm_i915_private *dev_priv = dev->dev_private; |
a8d201af ML |
3011 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc); |
3012 | struct drm_framebuffer *fb = plane_state->base.fb; | |
3013 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); | |
6156a456 CK |
3014 | int pipe = intel_crtc->pipe; |
3015 | u32 plane_ctl, stride_div, stride; | |
3016 | u32 tile_height, plane_offset, plane_size; | |
a8d201af | 3017 | unsigned int rotation = plane_state->base.rotation; |
6156a456 | 3018 | int x_offset, y_offset; |
44eb0cb9 | 3019 | u32 surf_addr; |
a8d201af ML |
3020 | int scaler_id = plane_state->scaler_id; |
3021 | int src_x = plane_state->src.x1 >> 16; | |
3022 | int src_y = plane_state->src.y1 >> 16; | |
3023 | int src_w = drm_rect_width(&plane_state->src) >> 16; | |
3024 | int src_h = drm_rect_height(&plane_state->src) >> 16; | |
3025 | int dst_x = plane_state->dst.x1; | |
3026 | int dst_y = plane_state->dst.y1; | |
3027 | int dst_w = drm_rect_width(&plane_state->dst); | |
3028 | int dst_h = drm_rect_height(&plane_state->dst); | |
70d21f0e | 3029 | |
6156a456 CK |
3030 | plane_ctl = PLANE_CTL_ENABLE | |
3031 | PLANE_CTL_PIPE_GAMMA_ENABLE | | |
3032 | PLANE_CTL_PIPE_CSC_ENABLE; | |
3033 | ||
3034 | plane_ctl |= skl_plane_ctl_format(fb->pixel_format); | |
3035 | plane_ctl |= skl_plane_ctl_tiling(fb->modifier[0]); | |
3036 | plane_ctl |= PLANE_CTL_PLANE_GAMMA_DISABLE; | |
6156a456 CK |
3037 | plane_ctl |= skl_plane_ctl_rotation(rotation); |
3038 | ||
7b49f948 | 3039 | stride_div = intel_fb_stride_alignment(dev_priv, fb->modifier[0], |
b321803d | 3040 | fb->pixel_format); |
dedf278c | 3041 | surf_addr = intel_plane_obj_offset(to_intel_plane(plane), obj, 0); |
3b7a5119 | 3042 | |
a42e5a23 PZ |
3043 | WARN_ON(drm_rect_width(&plane_state->src) == 0); |
3044 | ||
3b7a5119 | 3045 | if (intel_rotation_90_or_270(rotation)) { |
832be82f VS |
3046 | int cpp = drm_format_plane_cpp(fb->pixel_format, 0); |
3047 | ||
3b7a5119 | 3048 | /* stride = Surface height in tiles */ |
832be82f | 3049 | tile_height = intel_tile_height(dev_priv, fb->modifier[0], cpp); |
3b7a5119 | 3050 | stride = DIV_ROUND_UP(fb->height, tile_height); |
a8d201af ML |
3051 | x_offset = stride * tile_height - src_y - src_h; |
3052 | y_offset = src_x; | |
6156a456 | 3053 | plane_size = (src_w - 1) << 16 | (src_h - 1); |
3b7a5119 SJ |
3054 | } else { |
3055 | stride = fb->pitches[0] / stride_div; | |
a8d201af ML |
3056 | x_offset = src_x; |
3057 | y_offset = src_y; | |
6156a456 | 3058 | plane_size = (src_h - 1) << 16 | (src_w - 1); |
3b7a5119 SJ |
3059 | } |
3060 | plane_offset = y_offset << 16 | x_offset; | |
b321803d | 3061 | |
2db3366b PZ |
3062 | intel_crtc->adjusted_x = x_offset; |
3063 | intel_crtc->adjusted_y = y_offset; | |
3064 | ||
70d21f0e | 3065 | I915_WRITE(PLANE_CTL(pipe, 0), plane_ctl); |
3b7a5119 SJ |
3066 | I915_WRITE(PLANE_OFFSET(pipe, 0), plane_offset); |
3067 | I915_WRITE(PLANE_SIZE(pipe, 0), plane_size); | |
3068 | I915_WRITE(PLANE_STRIDE(pipe, 0), stride); | |
6156a456 CK |
3069 | |
3070 | if (scaler_id >= 0) { | |
3071 | uint32_t ps_ctrl = 0; | |
3072 | ||
3073 | WARN_ON(!dst_w || !dst_h); | |
3074 | ps_ctrl = PS_SCALER_EN | PS_PLANE_SEL(0) | | |
3075 | crtc_state->scaler_state.scalers[scaler_id].mode; | |
3076 | I915_WRITE(SKL_PS_CTRL(pipe, scaler_id), ps_ctrl); | |
3077 | I915_WRITE(SKL_PS_PWR_GATE(pipe, scaler_id), 0); | |
3078 | I915_WRITE(SKL_PS_WIN_POS(pipe, scaler_id), (dst_x << 16) | dst_y); | |
3079 | I915_WRITE(SKL_PS_WIN_SZ(pipe, scaler_id), (dst_w << 16) | dst_h); | |
3080 | I915_WRITE(PLANE_POS(pipe, 0), 0); | |
3081 | } else { | |
3082 | I915_WRITE(PLANE_POS(pipe, 0), (dst_y << 16) | dst_x); | |
3083 | } | |
3084 | ||
121920fa | 3085 | I915_WRITE(PLANE_SURF(pipe, 0), surf_addr); |
70d21f0e DL |
3086 | |
3087 | POSTING_READ(PLANE_SURF(pipe, 0)); | |
3088 | } | |
3089 | ||
a8d201af ML |
3090 | static void skylake_disable_primary_plane(struct drm_plane *primary, |
3091 | struct drm_crtc *crtc) | |
17638cd6 JB |
3092 | { |
3093 | struct drm_device *dev = crtc->dev; | |
3094 | struct drm_i915_private *dev_priv = dev->dev_private; | |
a8d201af | 3095 | int pipe = to_intel_crtc(crtc)->pipe; |
17638cd6 | 3096 | |
a8d201af ML |
3097 | I915_WRITE(PLANE_CTL(pipe, 0), 0); |
3098 | I915_WRITE(PLANE_SURF(pipe, 0), 0); | |
3099 | POSTING_READ(PLANE_SURF(pipe, 0)); | |
3100 | } | |
29b9bde6 | 3101 | |
a8d201af ML |
3102 | /* Assume fb object is pinned & idle & fenced and just update base pointers */ |
3103 | static int | |
3104 | intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb, | |
3105 | int x, int y, enum mode_set_atomic state) | |
3106 | { | |
3107 | /* Support for kgdboc is disabled, this needs a major rework. */ | |
3108 | DRM_ERROR("legacy panic handler not supported any more.\n"); | |
3109 | ||
3110 | return -ENODEV; | |
81255565 JB |
3111 | } |
3112 | ||
7514747d | 3113 | static void intel_complete_page_flips(struct drm_device *dev) |
96a02917 | 3114 | { |
96a02917 VS |
3115 | struct drm_crtc *crtc; |
3116 | ||
70e1e0ec | 3117 | for_each_crtc(dev, crtc) { |
96a02917 VS |
3118 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
3119 | enum plane plane = intel_crtc->plane; | |
3120 | ||
3121 | intel_prepare_page_flip(dev, plane); | |
3122 | intel_finish_page_flip_plane(dev, plane); | |
3123 | } | |
7514747d VS |
3124 | } |
3125 | ||
3126 | static void intel_update_primary_planes(struct drm_device *dev) | |
3127 | { | |
7514747d | 3128 | struct drm_crtc *crtc; |
96a02917 | 3129 | |
70e1e0ec | 3130 | for_each_crtc(dev, crtc) { |
11c22da6 ML |
3131 | struct intel_plane *plane = to_intel_plane(crtc->primary); |
3132 | struct intel_plane_state *plane_state; | |
96a02917 | 3133 | |
11c22da6 | 3134 | drm_modeset_lock_crtc(crtc, &plane->base); |
11c22da6 ML |
3135 | plane_state = to_intel_plane_state(plane->base.state); |
3136 | ||
a8d201af ML |
3137 | if (plane_state->visible) |
3138 | plane->update_plane(&plane->base, | |
3139 | to_intel_crtc_state(crtc->state), | |
3140 | plane_state); | |
11c22da6 ML |
3141 | |
3142 | drm_modeset_unlock_crtc(crtc); | |
96a02917 VS |
3143 | } |
3144 | } | |
3145 | ||
7514747d VS |
3146 | void intel_prepare_reset(struct drm_device *dev) |
3147 | { | |
3148 | /* no reset support for gen2 */ | |
3149 | if (IS_GEN2(dev)) | |
3150 | return; | |
3151 | ||
3152 | /* reset doesn't touch the display */ | |
3153 | if (INTEL_INFO(dev)->gen >= 5 || IS_G4X(dev)) | |
3154 | return; | |
3155 | ||
3156 | drm_modeset_lock_all(dev); | |
f98ce92f VS |
3157 | /* |
3158 | * Disabling the crtcs gracefully seems nicer. Also the | |
3159 | * g33 docs say we should at least disable all the planes. | |
3160 | */ | |
6b72d486 | 3161 | intel_display_suspend(dev); |
7514747d VS |
3162 | } |
3163 | ||
3164 | void intel_finish_reset(struct drm_device *dev) | |
3165 | { | |
3166 | struct drm_i915_private *dev_priv = to_i915(dev); | |
3167 | ||
3168 | /* | |
3169 | * Flips in the rings will be nuked by the reset, | |
3170 | * so complete all pending flips so that user space | |
3171 | * will get its events and not get stuck. | |
3172 | */ | |
3173 | intel_complete_page_flips(dev); | |
3174 | ||
3175 | /* no reset support for gen2 */ | |
3176 | if (IS_GEN2(dev)) | |
3177 | return; | |
3178 | ||
3179 | /* reset doesn't touch the display */ | |
3180 | if (INTEL_INFO(dev)->gen >= 5 || IS_G4X(dev)) { | |
3181 | /* | |
3182 | * Flips in the rings have been nuked by the reset, | |
3183 | * so update the base address of all primary | |
3184 | * planes to the the last fb to make sure we're | |
3185 | * showing the correct fb after a reset. | |
11c22da6 ML |
3186 | * |
3187 | * FIXME: Atomic will make this obsolete since we won't schedule | |
3188 | * CS-based flips (which might get lost in gpu resets) any more. | |
7514747d VS |
3189 | */ |
3190 | intel_update_primary_planes(dev); | |
3191 | return; | |
3192 | } | |
3193 | ||
3194 | /* | |
3195 | * The display has been reset as well, | |
3196 | * so need a full re-initialization. | |
3197 | */ | |
3198 | intel_runtime_pm_disable_interrupts(dev_priv); | |
3199 | intel_runtime_pm_enable_interrupts(dev_priv); | |
3200 | ||
3201 | intel_modeset_init_hw(dev); | |
3202 | ||
3203 | spin_lock_irq(&dev_priv->irq_lock); | |
3204 | if (dev_priv->display.hpd_irq_setup) | |
3205 | dev_priv->display.hpd_irq_setup(dev); | |
3206 | spin_unlock_irq(&dev_priv->irq_lock); | |
3207 | ||
043e9bda | 3208 | intel_display_resume(dev); |
7514747d VS |
3209 | |
3210 | intel_hpd_init(dev_priv); | |
3211 | ||
3212 | drm_modeset_unlock_all(dev); | |
3213 | } | |
3214 | ||
7d5e3799 CW |
3215 | static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc) |
3216 | { | |
3217 | struct drm_device *dev = crtc->dev; | |
7d5e3799 | 3218 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
c19ae989 | 3219 | unsigned reset_counter; |
7d5e3799 CW |
3220 | bool pending; |
3221 | ||
7f1847eb CW |
3222 | reset_counter = i915_reset_counter(&to_i915(dev)->gpu_error); |
3223 | if (intel_crtc->reset_counter != reset_counter) | |
7d5e3799 CW |
3224 | return false; |
3225 | ||
5e2d7afc | 3226 | spin_lock_irq(&dev->event_lock); |
7d5e3799 | 3227 | pending = to_intel_crtc(crtc)->unpin_work != NULL; |
5e2d7afc | 3228 | spin_unlock_irq(&dev->event_lock); |
7d5e3799 CW |
3229 | |
3230 | return pending; | |
3231 | } | |
3232 | ||
bfd16b2a ML |
3233 | static void intel_update_pipe_config(struct intel_crtc *crtc, |
3234 | struct intel_crtc_state *old_crtc_state) | |
e30e8f75 GP |
3235 | { |
3236 | struct drm_device *dev = crtc->base.dev; | |
3237 | struct drm_i915_private *dev_priv = dev->dev_private; | |
bfd16b2a ML |
3238 | struct intel_crtc_state *pipe_config = |
3239 | to_intel_crtc_state(crtc->base.state); | |
e30e8f75 | 3240 | |
bfd16b2a ML |
3241 | /* drm_atomic_helper_update_legacy_modeset_state might not be called. */ |
3242 | crtc->base.mode = crtc->base.state->mode; | |
3243 | ||
3244 | DRM_DEBUG_KMS("Updating pipe size %ix%i -> %ix%i\n", | |
3245 | old_crtc_state->pipe_src_w, old_crtc_state->pipe_src_h, | |
3246 | pipe_config->pipe_src_w, pipe_config->pipe_src_h); | |
e30e8f75 GP |
3247 | |
3248 | /* | |
3249 | * Update pipe size and adjust fitter if needed: the reason for this is | |
3250 | * that in compute_mode_changes we check the native mode (not the pfit | |
3251 | * mode) to see if we can flip rather than do a full mode set. In the | |
3252 | * fastboot case, we'll flip, but if we don't update the pipesrc and | |
3253 | * pfit state, we'll end up with a big fb scanned out into the wrong | |
3254 | * sized surface. | |
e30e8f75 GP |
3255 | */ |
3256 | ||
e30e8f75 | 3257 | I915_WRITE(PIPESRC(crtc->pipe), |
bfd16b2a ML |
3258 | ((pipe_config->pipe_src_w - 1) << 16) | |
3259 | (pipe_config->pipe_src_h - 1)); | |
3260 | ||
3261 | /* on skylake this is done by detaching scalers */ | |
3262 | if (INTEL_INFO(dev)->gen >= 9) { | |
3263 | skl_detach_scalers(crtc); | |
3264 | ||
3265 | if (pipe_config->pch_pfit.enabled) | |
3266 | skylake_pfit_enable(crtc); | |
3267 | } else if (HAS_PCH_SPLIT(dev)) { | |
3268 | if (pipe_config->pch_pfit.enabled) | |
3269 | ironlake_pfit_enable(crtc); | |
3270 | else if (old_crtc_state->pch_pfit.enabled) | |
3271 | ironlake_pfit_disable(crtc, true); | |
e30e8f75 | 3272 | } |
e30e8f75 GP |
3273 | } |
3274 | ||
5e84e1a4 ZW |
3275 | static void intel_fdi_normal_train(struct drm_crtc *crtc) |
3276 | { | |
3277 | struct drm_device *dev = crtc->dev; | |
3278 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3279 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3280 | int pipe = intel_crtc->pipe; | |
f0f59a00 VS |
3281 | i915_reg_t reg; |
3282 | u32 temp; | |
5e84e1a4 ZW |
3283 | |
3284 | /* enable normal train */ | |
3285 | reg = FDI_TX_CTL(pipe); | |
3286 | temp = I915_READ(reg); | |
61e499bf | 3287 | if (IS_IVYBRIDGE(dev)) { |
357555c0 JB |
3288 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
3289 | temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE; | |
61e499bf KP |
3290 | } else { |
3291 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3292 | temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE; | |
357555c0 | 3293 | } |
5e84e1a4 ZW |
3294 | I915_WRITE(reg, temp); |
3295 | ||
3296 | reg = FDI_RX_CTL(pipe); | |
3297 | temp = I915_READ(reg); | |
3298 | if (HAS_PCH_CPT(dev)) { | |
3299 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3300 | temp |= FDI_LINK_TRAIN_NORMAL_CPT; | |
3301 | } else { | |
3302 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3303 | temp |= FDI_LINK_TRAIN_NONE; | |
3304 | } | |
3305 | I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); | |
3306 | ||
3307 | /* wait one idle pattern time */ | |
3308 | POSTING_READ(reg); | |
3309 | udelay(1000); | |
357555c0 JB |
3310 | |
3311 | /* IVB wants error correction enabled */ | |
3312 | if (IS_IVYBRIDGE(dev)) | |
3313 | I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE | | |
3314 | FDI_FE_ERRC_ENABLE); | |
5e84e1a4 ZW |
3315 | } |
3316 | ||
8db9d77b ZW |
3317 | /* The FDI link training functions for ILK/Ibexpeak. */ |
3318 | static void ironlake_fdi_link_train(struct drm_crtc *crtc) | |
3319 | { | |
3320 | struct drm_device *dev = crtc->dev; | |
3321 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3322 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3323 | int pipe = intel_crtc->pipe; | |
f0f59a00 VS |
3324 | i915_reg_t reg; |
3325 | u32 temp, tries; | |
8db9d77b | 3326 | |
1c8562f6 | 3327 | /* FDI needs bits from pipe first */ |
0fc932b8 | 3328 | assert_pipe_enabled(dev_priv, pipe); |
0fc932b8 | 3329 | |
e1a44743 AJ |
3330 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
3331 | for train result */ | |
5eddb70b CW |
3332 | reg = FDI_RX_IMR(pipe); |
3333 | temp = I915_READ(reg); | |
e1a44743 AJ |
3334 | temp &= ~FDI_RX_SYMBOL_LOCK; |
3335 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
3336 | I915_WRITE(reg, temp); |
3337 | I915_READ(reg); | |
e1a44743 AJ |
3338 | udelay(150); |
3339 | ||
8db9d77b | 3340 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
3341 | reg = FDI_TX_CTL(pipe); |
3342 | temp = I915_READ(reg); | |
627eb5a3 | 3343 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
6e3c9717 | 3344 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config->fdi_lanes); |
8db9d77b ZW |
3345 | temp &= ~FDI_LINK_TRAIN_NONE; |
3346 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b | 3347 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 3348 | |
5eddb70b CW |
3349 | reg = FDI_RX_CTL(pipe); |
3350 | temp = I915_READ(reg); | |
8db9d77b ZW |
3351 | temp &= ~FDI_LINK_TRAIN_NONE; |
3352 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b CW |
3353 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
3354 | ||
3355 | POSTING_READ(reg); | |
8db9d77b ZW |
3356 | udelay(150); |
3357 | ||
5b2adf89 | 3358 | /* Ironlake workaround, enable clock pointer after FDI enable*/ |
8f5718a6 DV |
3359 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); |
3360 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR | | |
3361 | FDI_RX_PHASE_SYNC_POINTER_EN); | |
5b2adf89 | 3362 | |
5eddb70b | 3363 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 3364 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 3365 | temp = I915_READ(reg); |
8db9d77b ZW |
3366 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
3367 | ||
3368 | if ((temp & FDI_RX_BIT_LOCK)) { | |
3369 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
5eddb70b | 3370 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
8db9d77b ZW |
3371 | break; |
3372 | } | |
8db9d77b | 3373 | } |
e1a44743 | 3374 | if (tries == 5) |
5eddb70b | 3375 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
3376 | |
3377 | /* Train 2 */ | |
5eddb70b CW |
3378 | reg = FDI_TX_CTL(pipe); |
3379 | temp = I915_READ(reg); | |
8db9d77b ZW |
3380 | temp &= ~FDI_LINK_TRAIN_NONE; |
3381 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 3382 | I915_WRITE(reg, temp); |
8db9d77b | 3383 | |
5eddb70b CW |
3384 | reg = FDI_RX_CTL(pipe); |
3385 | temp = I915_READ(reg); | |
8db9d77b ZW |
3386 | temp &= ~FDI_LINK_TRAIN_NONE; |
3387 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 3388 | I915_WRITE(reg, temp); |
8db9d77b | 3389 | |
5eddb70b CW |
3390 | POSTING_READ(reg); |
3391 | udelay(150); | |
8db9d77b | 3392 | |
5eddb70b | 3393 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 3394 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 3395 | temp = I915_READ(reg); |
8db9d77b ZW |
3396 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
3397 | ||
3398 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
5eddb70b | 3399 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
8db9d77b ZW |
3400 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
3401 | break; | |
3402 | } | |
8db9d77b | 3403 | } |
e1a44743 | 3404 | if (tries == 5) |
5eddb70b | 3405 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
3406 | |
3407 | DRM_DEBUG_KMS("FDI train done\n"); | |
5c5313c8 | 3408 | |
8db9d77b ZW |
3409 | } |
3410 | ||
0206e353 | 3411 | static const int snb_b_fdi_train_param[] = { |
8db9d77b ZW |
3412 | FDI_LINK_TRAIN_400MV_0DB_SNB_B, |
3413 | FDI_LINK_TRAIN_400MV_6DB_SNB_B, | |
3414 | FDI_LINK_TRAIN_600MV_3_5DB_SNB_B, | |
3415 | FDI_LINK_TRAIN_800MV_0DB_SNB_B, | |
3416 | }; | |
3417 | ||
3418 | /* The FDI link training functions for SNB/Cougarpoint. */ | |
3419 | static void gen6_fdi_link_train(struct drm_crtc *crtc) | |
3420 | { | |
3421 | struct drm_device *dev = crtc->dev; | |
3422 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3423 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3424 | int pipe = intel_crtc->pipe; | |
f0f59a00 VS |
3425 | i915_reg_t reg; |
3426 | u32 temp, i, retry; | |
8db9d77b | 3427 | |
e1a44743 AJ |
3428 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
3429 | for train result */ | |
5eddb70b CW |
3430 | reg = FDI_RX_IMR(pipe); |
3431 | temp = I915_READ(reg); | |
e1a44743 AJ |
3432 | temp &= ~FDI_RX_SYMBOL_LOCK; |
3433 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
3434 | I915_WRITE(reg, temp); |
3435 | ||
3436 | POSTING_READ(reg); | |
e1a44743 AJ |
3437 | udelay(150); |
3438 | ||
8db9d77b | 3439 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
3440 | reg = FDI_TX_CTL(pipe); |
3441 | temp = I915_READ(reg); | |
627eb5a3 | 3442 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
6e3c9717 | 3443 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config->fdi_lanes); |
8db9d77b ZW |
3444 | temp &= ~FDI_LINK_TRAIN_NONE; |
3445 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
3446 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
3447 | /* SNB-B */ | |
3448 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
5eddb70b | 3449 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 3450 | |
d74cf324 DV |
3451 | I915_WRITE(FDI_RX_MISC(pipe), |
3452 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); | |
3453 | ||
5eddb70b CW |
3454 | reg = FDI_RX_CTL(pipe); |
3455 | temp = I915_READ(reg); | |
8db9d77b ZW |
3456 | if (HAS_PCH_CPT(dev)) { |
3457 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3458 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
3459 | } else { | |
3460 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3461 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
3462 | } | |
5eddb70b CW |
3463 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
3464 | ||
3465 | POSTING_READ(reg); | |
8db9d77b ZW |
3466 | udelay(150); |
3467 | ||
0206e353 | 3468 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
3469 | reg = FDI_TX_CTL(pipe); |
3470 | temp = I915_READ(reg); | |
8db9d77b ZW |
3471 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
3472 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
3473 | I915_WRITE(reg, temp); |
3474 | ||
3475 | POSTING_READ(reg); | |
8db9d77b ZW |
3476 | udelay(500); |
3477 | ||
fa37d39e SP |
3478 | for (retry = 0; retry < 5; retry++) { |
3479 | reg = FDI_RX_IIR(pipe); | |
3480 | temp = I915_READ(reg); | |
3481 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
3482 | if (temp & FDI_RX_BIT_LOCK) { | |
3483 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
3484 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
3485 | break; | |
3486 | } | |
3487 | udelay(50); | |
8db9d77b | 3488 | } |
fa37d39e SP |
3489 | if (retry < 5) |
3490 | break; | |
8db9d77b ZW |
3491 | } |
3492 | if (i == 4) | |
5eddb70b | 3493 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
3494 | |
3495 | /* Train 2 */ | |
5eddb70b CW |
3496 | reg = FDI_TX_CTL(pipe); |
3497 | temp = I915_READ(reg); | |
8db9d77b ZW |
3498 | temp &= ~FDI_LINK_TRAIN_NONE; |
3499 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
3500 | if (IS_GEN6(dev)) { | |
3501 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
3502 | /* SNB-B */ | |
3503 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
3504 | } | |
5eddb70b | 3505 | I915_WRITE(reg, temp); |
8db9d77b | 3506 | |
5eddb70b CW |
3507 | reg = FDI_RX_CTL(pipe); |
3508 | temp = I915_READ(reg); | |
8db9d77b ZW |
3509 | if (HAS_PCH_CPT(dev)) { |
3510 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3511 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
3512 | } else { | |
3513 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3514 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
3515 | } | |
5eddb70b CW |
3516 | I915_WRITE(reg, temp); |
3517 | ||
3518 | POSTING_READ(reg); | |
8db9d77b ZW |
3519 | udelay(150); |
3520 | ||
0206e353 | 3521 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
3522 | reg = FDI_TX_CTL(pipe); |
3523 | temp = I915_READ(reg); | |
8db9d77b ZW |
3524 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
3525 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
3526 | I915_WRITE(reg, temp); |
3527 | ||
3528 | POSTING_READ(reg); | |
8db9d77b ZW |
3529 | udelay(500); |
3530 | ||
fa37d39e SP |
3531 | for (retry = 0; retry < 5; retry++) { |
3532 | reg = FDI_RX_IIR(pipe); | |
3533 | temp = I915_READ(reg); | |
3534 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
3535 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
3536 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
3537 | DRM_DEBUG_KMS("FDI train 2 done.\n"); | |
3538 | break; | |
3539 | } | |
3540 | udelay(50); | |
8db9d77b | 3541 | } |
fa37d39e SP |
3542 | if (retry < 5) |
3543 | break; | |
8db9d77b ZW |
3544 | } |
3545 | if (i == 4) | |
5eddb70b | 3546 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
3547 | |
3548 | DRM_DEBUG_KMS("FDI train done.\n"); | |
3549 | } | |
3550 | ||
357555c0 JB |
3551 | /* Manual link training for Ivy Bridge A0 parts */ |
3552 | static void ivb_manual_fdi_link_train(struct drm_crtc *crtc) | |
3553 | { | |
3554 | struct drm_device *dev = crtc->dev; | |
3555 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3556 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3557 | int pipe = intel_crtc->pipe; | |
f0f59a00 VS |
3558 | i915_reg_t reg; |
3559 | u32 temp, i, j; | |
357555c0 JB |
3560 | |
3561 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit | |
3562 | for train result */ | |
3563 | reg = FDI_RX_IMR(pipe); | |
3564 | temp = I915_READ(reg); | |
3565 | temp &= ~FDI_RX_SYMBOL_LOCK; | |
3566 | temp &= ~FDI_RX_BIT_LOCK; | |
3567 | I915_WRITE(reg, temp); | |
3568 | ||
3569 | POSTING_READ(reg); | |
3570 | udelay(150); | |
3571 | ||
01a415fd DV |
3572 | DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n", |
3573 | I915_READ(FDI_RX_IIR(pipe))); | |
3574 | ||
139ccd3f JB |
3575 | /* Try each vswing and preemphasis setting twice before moving on */ |
3576 | for (j = 0; j < ARRAY_SIZE(snb_b_fdi_train_param) * 2; j++) { | |
3577 | /* disable first in case we need to retry */ | |
3578 | reg = FDI_TX_CTL(pipe); | |
3579 | temp = I915_READ(reg); | |
3580 | temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB); | |
3581 | temp &= ~FDI_TX_ENABLE; | |
3582 | I915_WRITE(reg, temp); | |
357555c0 | 3583 | |
139ccd3f JB |
3584 | reg = FDI_RX_CTL(pipe); |
3585 | temp = I915_READ(reg); | |
3586 | temp &= ~FDI_LINK_TRAIN_AUTO; | |
3587 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3588 | temp &= ~FDI_RX_ENABLE; | |
3589 | I915_WRITE(reg, temp); | |
357555c0 | 3590 | |
139ccd3f | 3591 | /* enable CPU FDI TX and PCH FDI RX */ |
357555c0 JB |
3592 | reg = FDI_TX_CTL(pipe); |
3593 | temp = I915_READ(reg); | |
139ccd3f | 3594 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
6e3c9717 | 3595 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config->fdi_lanes); |
139ccd3f | 3596 | temp |= FDI_LINK_TRAIN_PATTERN_1_IVB; |
357555c0 | 3597 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
139ccd3f JB |
3598 | temp |= snb_b_fdi_train_param[j/2]; |
3599 | temp |= FDI_COMPOSITE_SYNC; | |
3600 | I915_WRITE(reg, temp | FDI_TX_ENABLE); | |
357555c0 | 3601 | |
139ccd3f JB |
3602 | I915_WRITE(FDI_RX_MISC(pipe), |
3603 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); | |
357555c0 | 3604 | |
139ccd3f | 3605 | reg = FDI_RX_CTL(pipe); |
357555c0 | 3606 | temp = I915_READ(reg); |
139ccd3f JB |
3607 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; |
3608 | temp |= FDI_COMPOSITE_SYNC; | |
3609 | I915_WRITE(reg, temp | FDI_RX_ENABLE); | |
357555c0 | 3610 | |
139ccd3f JB |
3611 | POSTING_READ(reg); |
3612 | udelay(1); /* should be 0.5us */ | |
357555c0 | 3613 | |
139ccd3f JB |
3614 | for (i = 0; i < 4; i++) { |
3615 | reg = FDI_RX_IIR(pipe); | |
3616 | temp = I915_READ(reg); | |
3617 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
357555c0 | 3618 | |
139ccd3f JB |
3619 | if (temp & FDI_RX_BIT_LOCK || |
3620 | (I915_READ(reg) & FDI_RX_BIT_LOCK)) { | |
3621 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
3622 | DRM_DEBUG_KMS("FDI train 1 done, level %i.\n", | |
3623 | i); | |
3624 | break; | |
3625 | } | |
3626 | udelay(1); /* should be 0.5us */ | |
3627 | } | |
3628 | if (i == 4) { | |
3629 | DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j / 2); | |
3630 | continue; | |
3631 | } | |
357555c0 | 3632 | |
139ccd3f | 3633 | /* Train 2 */ |
357555c0 JB |
3634 | reg = FDI_TX_CTL(pipe); |
3635 | temp = I915_READ(reg); | |
139ccd3f JB |
3636 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
3637 | temp |= FDI_LINK_TRAIN_PATTERN_2_IVB; | |
3638 | I915_WRITE(reg, temp); | |
3639 | ||
3640 | reg = FDI_RX_CTL(pipe); | |
3641 | temp = I915_READ(reg); | |
3642 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3643 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
357555c0 JB |
3644 | I915_WRITE(reg, temp); |
3645 | ||
3646 | POSTING_READ(reg); | |
139ccd3f | 3647 | udelay(2); /* should be 1.5us */ |
357555c0 | 3648 | |
139ccd3f JB |
3649 | for (i = 0; i < 4; i++) { |
3650 | reg = FDI_RX_IIR(pipe); | |
3651 | temp = I915_READ(reg); | |
3652 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
357555c0 | 3653 | |
139ccd3f JB |
3654 | if (temp & FDI_RX_SYMBOL_LOCK || |
3655 | (I915_READ(reg) & FDI_RX_SYMBOL_LOCK)) { | |
3656 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
3657 | DRM_DEBUG_KMS("FDI train 2 done, level %i.\n", | |
3658 | i); | |
3659 | goto train_done; | |
3660 | } | |
3661 | udelay(2); /* should be 1.5us */ | |
357555c0 | 3662 | } |
139ccd3f JB |
3663 | if (i == 4) |
3664 | DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j / 2); | |
357555c0 | 3665 | } |
357555c0 | 3666 | |
139ccd3f | 3667 | train_done: |
357555c0 JB |
3668 | DRM_DEBUG_KMS("FDI train done.\n"); |
3669 | } | |
3670 | ||
88cefb6c | 3671 | static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc) |
2c07245f | 3672 | { |
88cefb6c | 3673 | struct drm_device *dev = intel_crtc->base.dev; |
2c07245f | 3674 | struct drm_i915_private *dev_priv = dev->dev_private; |
2c07245f | 3675 | int pipe = intel_crtc->pipe; |
f0f59a00 VS |
3676 | i915_reg_t reg; |
3677 | u32 temp; | |
c64e311e | 3678 | |
c98e9dcf | 3679 | /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ |
5eddb70b CW |
3680 | reg = FDI_RX_CTL(pipe); |
3681 | temp = I915_READ(reg); | |
627eb5a3 | 3682 | temp &= ~(FDI_DP_PORT_WIDTH_MASK | (0x7 << 16)); |
6e3c9717 | 3683 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config->fdi_lanes); |
dfd07d72 | 3684 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
5eddb70b CW |
3685 | I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE); |
3686 | ||
3687 | POSTING_READ(reg); | |
c98e9dcf JB |
3688 | udelay(200); |
3689 | ||
3690 | /* Switch from Rawclk to PCDclk */ | |
5eddb70b CW |
3691 | temp = I915_READ(reg); |
3692 | I915_WRITE(reg, temp | FDI_PCDCLK); | |
3693 | ||
3694 | POSTING_READ(reg); | |
c98e9dcf JB |
3695 | udelay(200); |
3696 | ||
20749730 PZ |
3697 | /* Enable CPU FDI TX PLL, always on for Ironlake */ |
3698 | reg = FDI_TX_CTL(pipe); | |
3699 | temp = I915_READ(reg); | |
3700 | if ((temp & FDI_TX_PLL_ENABLE) == 0) { | |
3701 | I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE); | |
5eddb70b | 3702 | |
20749730 PZ |
3703 | POSTING_READ(reg); |
3704 | udelay(100); | |
6be4a607 | 3705 | } |
0e23b99d JB |
3706 | } |
3707 | ||
88cefb6c DV |
3708 | static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc) |
3709 | { | |
3710 | struct drm_device *dev = intel_crtc->base.dev; | |
3711 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3712 | int pipe = intel_crtc->pipe; | |
f0f59a00 VS |
3713 | i915_reg_t reg; |
3714 | u32 temp; | |
88cefb6c DV |
3715 | |
3716 | /* Switch from PCDclk to Rawclk */ | |
3717 | reg = FDI_RX_CTL(pipe); | |
3718 | temp = I915_READ(reg); | |
3719 | I915_WRITE(reg, temp & ~FDI_PCDCLK); | |
3720 | ||
3721 | /* Disable CPU FDI TX PLL */ | |
3722 | reg = FDI_TX_CTL(pipe); | |
3723 | temp = I915_READ(reg); | |
3724 | I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE); | |
3725 | ||
3726 | POSTING_READ(reg); | |
3727 | udelay(100); | |
3728 | ||
3729 | reg = FDI_RX_CTL(pipe); | |
3730 | temp = I915_READ(reg); | |
3731 | I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE); | |
3732 | ||
3733 | /* Wait for the clocks to turn off. */ | |
3734 | POSTING_READ(reg); | |
3735 | udelay(100); | |
3736 | } | |
3737 | ||
0fc932b8 JB |
3738 | static void ironlake_fdi_disable(struct drm_crtc *crtc) |
3739 | { | |
3740 | struct drm_device *dev = crtc->dev; | |
3741 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3742 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3743 | int pipe = intel_crtc->pipe; | |
f0f59a00 VS |
3744 | i915_reg_t reg; |
3745 | u32 temp; | |
0fc932b8 JB |
3746 | |
3747 | /* disable CPU FDI tx and PCH FDI rx */ | |
3748 | reg = FDI_TX_CTL(pipe); | |
3749 | temp = I915_READ(reg); | |
3750 | I915_WRITE(reg, temp & ~FDI_TX_ENABLE); | |
3751 | POSTING_READ(reg); | |
3752 | ||
3753 | reg = FDI_RX_CTL(pipe); | |
3754 | temp = I915_READ(reg); | |
3755 | temp &= ~(0x7 << 16); | |
dfd07d72 | 3756 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
0fc932b8 JB |
3757 | I915_WRITE(reg, temp & ~FDI_RX_ENABLE); |
3758 | ||
3759 | POSTING_READ(reg); | |
3760 | udelay(100); | |
3761 | ||
3762 | /* Ironlake workaround, disable clock pointer after downing FDI */ | |
eba905b2 | 3763 | if (HAS_PCH_IBX(dev)) |
6f06ce18 | 3764 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); |
0fc932b8 JB |
3765 | |
3766 | /* still set train pattern 1 */ | |
3767 | reg = FDI_TX_CTL(pipe); | |
3768 | temp = I915_READ(reg); | |
3769 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3770 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
3771 | I915_WRITE(reg, temp); | |
3772 | ||
3773 | reg = FDI_RX_CTL(pipe); | |
3774 | temp = I915_READ(reg); | |
3775 | if (HAS_PCH_CPT(dev)) { | |
3776 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
3777 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
3778 | } else { | |
3779 | temp &= ~FDI_LINK_TRAIN_NONE; | |
3780 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
3781 | } | |
3782 | /* BPC in FDI rx is consistent with that in PIPECONF */ | |
3783 | temp &= ~(0x07 << 16); | |
dfd07d72 | 3784 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
0fc932b8 JB |
3785 | I915_WRITE(reg, temp); |
3786 | ||
3787 | POSTING_READ(reg); | |
3788 | udelay(100); | |
3789 | } | |
3790 | ||
5dce5b93 CW |
3791 | bool intel_has_pending_fb_unpin(struct drm_device *dev) |
3792 | { | |
3793 | struct intel_crtc *crtc; | |
3794 | ||
3795 | /* Note that we don't need to be called with mode_config.lock here | |
3796 | * as our list of CRTC objects is static for the lifetime of the | |
3797 | * device and so cannot disappear as we iterate. Similarly, we can | |
3798 | * happily treat the predicates as racy, atomic checks as userspace | |
3799 | * cannot claim and pin a new fb without at least acquring the | |
3800 | * struct_mutex and so serialising with us. | |
3801 | */ | |
d3fcc808 | 3802 | for_each_intel_crtc(dev, crtc) { |
5dce5b93 CW |
3803 | if (atomic_read(&crtc->unpin_work_count) == 0) |
3804 | continue; | |
3805 | ||
3806 | if (crtc->unpin_work) | |
3807 | intel_wait_for_vblank(dev, crtc->pipe); | |
3808 | ||
3809 | return true; | |
3810 | } | |
3811 | ||
3812 | return false; | |
3813 | } | |
3814 | ||
d6bbafa1 CW |
3815 | static void page_flip_completed(struct intel_crtc *intel_crtc) |
3816 | { | |
3817 | struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev); | |
3818 | struct intel_unpin_work *work = intel_crtc->unpin_work; | |
3819 | ||
3820 | /* ensure that the unpin work is consistent wrt ->pending. */ | |
3821 | smp_rmb(); | |
3822 | intel_crtc->unpin_work = NULL; | |
3823 | ||
3824 | if (work->event) | |
560ce1dc | 3825 | drm_crtc_send_vblank_event(&intel_crtc->base, work->event); |
d6bbafa1 CW |
3826 | |
3827 | drm_crtc_vblank_put(&intel_crtc->base); | |
3828 | ||
3829 | wake_up_all(&dev_priv->pending_flip_queue); | |
3830 | queue_work(dev_priv->wq, &work->work); | |
3831 | ||
3832 | trace_i915_flip_complete(intel_crtc->plane, | |
3833 | work->pending_flip_obj); | |
3834 | } | |
3835 | ||
5008e874 | 3836 | static int intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc) |
e6c3a2a6 | 3837 | { |
0f91128d | 3838 | struct drm_device *dev = crtc->dev; |
5bb61643 | 3839 | struct drm_i915_private *dev_priv = dev->dev_private; |
5008e874 | 3840 | long ret; |
e6c3a2a6 | 3841 | |
2c10d571 | 3842 | WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue)); |
5008e874 ML |
3843 | |
3844 | ret = wait_event_interruptible_timeout( | |
3845 | dev_priv->pending_flip_queue, | |
3846 | !intel_crtc_has_pending_flip(crtc), | |
3847 | 60*HZ); | |
3848 | ||
3849 | if (ret < 0) | |
3850 | return ret; | |
3851 | ||
3852 | if (ret == 0) { | |
9c787942 | 3853 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
2c10d571 | 3854 | |
5e2d7afc | 3855 | spin_lock_irq(&dev->event_lock); |
9c787942 CW |
3856 | if (intel_crtc->unpin_work) { |
3857 | WARN_ONCE(1, "Removing stuck page flip\n"); | |
3858 | page_flip_completed(intel_crtc); | |
3859 | } | |
5e2d7afc | 3860 | spin_unlock_irq(&dev->event_lock); |
9c787942 | 3861 | } |
5bb61643 | 3862 | |
5008e874 | 3863 | return 0; |
e6c3a2a6 CW |
3864 | } |
3865 | ||
060f02d8 VS |
3866 | static void lpt_disable_iclkip(struct drm_i915_private *dev_priv) |
3867 | { | |
3868 | u32 temp; | |
3869 | ||
3870 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE); | |
3871 | ||
3872 | mutex_lock(&dev_priv->sb_lock); | |
3873 | ||
3874 | temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK); | |
3875 | temp |= SBI_SSCCTL_DISABLE; | |
3876 | intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK); | |
3877 | ||
3878 | mutex_unlock(&dev_priv->sb_lock); | |
3879 | } | |
3880 | ||
e615efe4 ED |
3881 | /* Program iCLKIP clock to the desired frequency */ |
3882 | static void lpt_program_iclkip(struct drm_crtc *crtc) | |
3883 | { | |
64b46a06 | 3884 | struct drm_i915_private *dev_priv = to_i915(crtc->dev); |
6e3c9717 | 3885 | int clock = to_intel_crtc(crtc)->config->base.adjusted_mode.crtc_clock; |
e615efe4 ED |
3886 | u32 divsel, phaseinc, auxdiv, phasedir = 0; |
3887 | u32 temp; | |
3888 | ||
060f02d8 | 3889 | lpt_disable_iclkip(dev_priv); |
e615efe4 | 3890 | |
64b46a06 VS |
3891 | /* The iCLK virtual clock root frequency is in MHz, |
3892 | * but the adjusted_mode->crtc_clock in in KHz. To get the | |
3893 | * divisors, it is necessary to divide one by another, so we | |
3894 | * convert the virtual clock precision to KHz here for higher | |
3895 | * precision. | |
3896 | */ | |
3897 | for (auxdiv = 0; auxdiv < 2; auxdiv++) { | |
e615efe4 ED |
3898 | u32 iclk_virtual_root_freq = 172800 * 1000; |
3899 | u32 iclk_pi_range = 64; | |
64b46a06 | 3900 | u32 desired_divisor; |
e615efe4 | 3901 | |
64b46a06 VS |
3902 | desired_divisor = DIV_ROUND_CLOSEST(iclk_virtual_root_freq, |
3903 | clock << auxdiv); | |
3904 | divsel = (desired_divisor / iclk_pi_range) - 2; | |
3905 | phaseinc = desired_divisor % iclk_pi_range; | |
e615efe4 | 3906 | |
64b46a06 VS |
3907 | /* |
3908 | * Near 20MHz is a corner case which is | |
3909 | * out of range for the 7-bit divisor | |
3910 | */ | |
3911 | if (divsel <= 0x7f) | |
3912 | break; | |
e615efe4 ED |
3913 | } |
3914 | ||
3915 | /* This should not happen with any sane values */ | |
3916 | WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) & | |
3917 | ~SBI_SSCDIVINTPHASE_DIVSEL_MASK); | |
3918 | WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) & | |
3919 | ~SBI_SSCDIVINTPHASE_INCVAL_MASK); | |
3920 | ||
3921 | DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n", | |
12d7ceed | 3922 | clock, |
e615efe4 ED |
3923 | auxdiv, |
3924 | divsel, | |
3925 | phasedir, | |
3926 | phaseinc); | |
3927 | ||
060f02d8 VS |
3928 | mutex_lock(&dev_priv->sb_lock); |
3929 | ||
e615efe4 | 3930 | /* Program SSCDIVINTPHASE6 */ |
988d6ee8 | 3931 | temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6, SBI_ICLK); |
e615efe4 ED |
3932 | temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK; |
3933 | temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel); | |
3934 | temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK; | |
3935 | temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc); | |
3936 | temp |= SBI_SSCDIVINTPHASE_DIR(phasedir); | |
3937 | temp |= SBI_SSCDIVINTPHASE_PROPAGATE; | |
988d6ee8 | 3938 | intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE6, temp, SBI_ICLK); |
e615efe4 ED |
3939 | |
3940 | /* Program SSCAUXDIV */ | |
988d6ee8 | 3941 | temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6, SBI_ICLK); |
e615efe4 ED |
3942 | temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1); |
3943 | temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv); | |
988d6ee8 | 3944 | intel_sbi_write(dev_priv, SBI_SSCAUXDIV6, temp, SBI_ICLK); |
e615efe4 ED |
3945 | |
3946 | /* Enable modulator and associated divider */ | |
988d6ee8 | 3947 | temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK); |
e615efe4 | 3948 | temp &= ~SBI_SSCCTL_DISABLE; |
988d6ee8 | 3949 | intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK); |
e615efe4 | 3950 | |
060f02d8 VS |
3951 | mutex_unlock(&dev_priv->sb_lock); |
3952 | ||
e615efe4 ED |
3953 | /* Wait for initialization time */ |
3954 | udelay(24); | |
3955 | ||
3956 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE); | |
3957 | } | |
3958 | ||
8802e5b6 VS |
3959 | int lpt_get_iclkip(struct drm_i915_private *dev_priv) |
3960 | { | |
3961 | u32 divsel, phaseinc, auxdiv; | |
3962 | u32 iclk_virtual_root_freq = 172800 * 1000; | |
3963 | u32 iclk_pi_range = 64; | |
3964 | u32 desired_divisor; | |
3965 | u32 temp; | |
3966 | ||
3967 | if ((I915_READ(PIXCLK_GATE) & PIXCLK_GATE_UNGATE) == 0) | |
3968 | return 0; | |
3969 | ||
3970 | mutex_lock(&dev_priv->sb_lock); | |
3971 | ||
3972 | temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK); | |
3973 | if (temp & SBI_SSCCTL_DISABLE) { | |
3974 | mutex_unlock(&dev_priv->sb_lock); | |
3975 | return 0; | |
3976 | } | |
3977 | ||
3978 | temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6, SBI_ICLK); | |
3979 | divsel = (temp & SBI_SSCDIVINTPHASE_DIVSEL_MASK) >> | |
3980 | SBI_SSCDIVINTPHASE_DIVSEL_SHIFT; | |
3981 | phaseinc = (temp & SBI_SSCDIVINTPHASE_INCVAL_MASK) >> | |
3982 | SBI_SSCDIVINTPHASE_INCVAL_SHIFT; | |
3983 | ||
3984 | temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6, SBI_ICLK); | |
3985 | auxdiv = (temp & SBI_SSCAUXDIV_FINALDIV2SEL_MASK) >> | |
3986 | SBI_SSCAUXDIV_FINALDIV2SEL_SHIFT; | |
3987 | ||
3988 | mutex_unlock(&dev_priv->sb_lock); | |
3989 | ||
3990 | desired_divisor = (divsel + 2) * iclk_pi_range + phaseinc; | |
3991 | ||
3992 | return DIV_ROUND_CLOSEST(iclk_virtual_root_freq, | |
3993 | desired_divisor << auxdiv); | |
3994 | } | |
3995 | ||
275f01b2 DV |
3996 | static void ironlake_pch_transcoder_set_timings(struct intel_crtc *crtc, |
3997 | enum pipe pch_transcoder) | |
3998 | { | |
3999 | struct drm_device *dev = crtc->base.dev; | |
4000 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6e3c9717 | 4001 | enum transcoder cpu_transcoder = crtc->config->cpu_transcoder; |
275f01b2 DV |
4002 | |
4003 | I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder), | |
4004 | I915_READ(HTOTAL(cpu_transcoder))); | |
4005 | I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder), | |
4006 | I915_READ(HBLANK(cpu_transcoder))); | |
4007 | I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder), | |
4008 | I915_READ(HSYNC(cpu_transcoder))); | |
4009 | ||
4010 | I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder), | |
4011 | I915_READ(VTOTAL(cpu_transcoder))); | |
4012 | I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder), | |
4013 | I915_READ(VBLANK(cpu_transcoder))); | |
4014 | I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder), | |
4015 | I915_READ(VSYNC(cpu_transcoder))); | |
4016 | I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder), | |
4017 | I915_READ(VSYNCSHIFT(cpu_transcoder))); | |
4018 | } | |
4019 | ||
003632d9 | 4020 | static void cpt_set_fdi_bc_bifurcation(struct drm_device *dev, bool enable) |
1fbc0d78 DV |
4021 | { |
4022 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4023 | uint32_t temp; | |
4024 | ||
4025 | temp = I915_READ(SOUTH_CHICKEN1); | |
003632d9 | 4026 | if (!!(temp & FDI_BC_BIFURCATION_SELECT) == enable) |
1fbc0d78 DV |
4027 | return; |
4028 | ||
4029 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE); | |
4030 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE); | |
4031 | ||
003632d9 ACO |
4032 | temp &= ~FDI_BC_BIFURCATION_SELECT; |
4033 | if (enable) | |
4034 | temp |= FDI_BC_BIFURCATION_SELECT; | |
4035 | ||
4036 | DRM_DEBUG_KMS("%sabling fdi C rx\n", enable ? "en" : "dis"); | |
1fbc0d78 DV |
4037 | I915_WRITE(SOUTH_CHICKEN1, temp); |
4038 | POSTING_READ(SOUTH_CHICKEN1); | |
4039 | } | |
4040 | ||
4041 | static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc) | |
4042 | { | |
4043 | struct drm_device *dev = intel_crtc->base.dev; | |
1fbc0d78 DV |
4044 | |
4045 | switch (intel_crtc->pipe) { | |
4046 | case PIPE_A: | |
4047 | break; | |
4048 | case PIPE_B: | |
6e3c9717 | 4049 | if (intel_crtc->config->fdi_lanes > 2) |
003632d9 | 4050 | cpt_set_fdi_bc_bifurcation(dev, false); |
1fbc0d78 | 4051 | else |
003632d9 | 4052 | cpt_set_fdi_bc_bifurcation(dev, true); |
1fbc0d78 DV |
4053 | |
4054 | break; | |
4055 | case PIPE_C: | |
003632d9 | 4056 | cpt_set_fdi_bc_bifurcation(dev, true); |
1fbc0d78 DV |
4057 | |
4058 | break; | |
4059 | default: | |
4060 | BUG(); | |
4061 | } | |
4062 | } | |
4063 | ||
c48b5305 VS |
4064 | /* Return which DP Port should be selected for Transcoder DP control */ |
4065 | static enum port | |
4066 | intel_trans_dp_port_sel(struct drm_crtc *crtc) | |
4067 | { | |
4068 | struct drm_device *dev = crtc->dev; | |
4069 | struct intel_encoder *encoder; | |
4070 | ||
4071 | for_each_encoder_on_crtc(dev, crtc, encoder) { | |
4072 | if (encoder->type == INTEL_OUTPUT_DISPLAYPORT || | |
4073 | encoder->type == INTEL_OUTPUT_EDP) | |
4074 | return enc_to_dig_port(&encoder->base)->port; | |
4075 | } | |
4076 | ||
4077 | return -1; | |
4078 | } | |
4079 | ||
f67a559d JB |
4080 | /* |
4081 | * Enable PCH resources required for PCH ports: | |
4082 | * - PCH PLLs | |
4083 | * - FDI training & RX/TX | |
4084 | * - update transcoder timings | |
4085 | * - DP transcoding bits | |
4086 | * - transcoder | |
4087 | */ | |
4088 | static void ironlake_pch_enable(struct drm_crtc *crtc) | |
0e23b99d JB |
4089 | { |
4090 | struct drm_device *dev = crtc->dev; | |
4091 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4092 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4093 | int pipe = intel_crtc->pipe; | |
f0f59a00 | 4094 | u32 temp; |
2c07245f | 4095 | |
ab9412ba | 4096 | assert_pch_transcoder_disabled(dev_priv, pipe); |
e7e164db | 4097 | |
1fbc0d78 DV |
4098 | if (IS_IVYBRIDGE(dev)) |
4099 | ivybridge_update_fdi_bc_bifurcation(intel_crtc); | |
4100 | ||
cd986abb DV |
4101 | /* Write the TU size bits before fdi link training, so that error |
4102 | * detection works. */ | |
4103 | I915_WRITE(FDI_RX_TUSIZE1(pipe), | |
4104 | I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK); | |
4105 | ||
c98e9dcf | 4106 | /* For PCH output, training FDI link */ |
674cf967 | 4107 | dev_priv->display.fdi_link_train(crtc); |
2c07245f | 4108 | |
3ad8a208 DV |
4109 | /* We need to program the right clock selection before writing the pixel |
4110 | * mutliplier into the DPLL. */ | |
303b81e0 | 4111 | if (HAS_PCH_CPT(dev)) { |
ee7b9f93 | 4112 | u32 sel; |
4b645f14 | 4113 | |
c98e9dcf | 4114 | temp = I915_READ(PCH_DPLL_SEL); |
11887397 DV |
4115 | temp |= TRANS_DPLL_ENABLE(pipe); |
4116 | sel = TRANS_DPLLB_SEL(pipe); | |
8106ddbd ACO |
4117 | if (intel_crtc->config->shared_dpll == |
4118 | intel_get_shared_dpll_by_id(dev_priv, DPLL_ID_PCH_PLL_B)) | |
ee7b9f93 JB |
4119 | temp |= sel; |
4120 | else | |
4121 | temp &= ~sel; | |
c98e9dcf | 4122 | I915_WRITE(PCH_DPLL_SEL, temp); |
c98e9dcf | 4123 | } |
5eddb70b | 4124 | |
3ad8a208 DV |
4125 | /* XXX: pch pll's can be enabled any time before we enable the PCH |
4126 | * transcoder, and we actually should do this to not upset any PCH | |
4127 | * transcoder that already use the clock when we share it. | |
4128 | * | |
4129 | * Note that enable_shared_dpll tries to do the right thing, but | |
4130 | * get_shared_dpll unconditionally resets the pll - we need that to have | |
4131 | * the right LVDS enable sequence. */ | |
85b3894f | 4132 | intel_enable_shared_dpll(intel_crtc); |
3ad8a208 | 4133 | |
d9b6cb56 JB |
4134 | /* set transcoder timing, panel must allow it */ |
4135 | assert_panel_unlocked(dev_priv, pipe); | |
275f01b2 | 4136 | ironlake_pch_transcoder_set_timings(intel_crtc, pipe); |
8db9d77b | 4137 | |
303b81e0 | 4138 | intel_fdi_normal_train(crtc); |
5e84e1a4 | 4139 | |
c98e9dcf | 4140 | /* For PCH DP, enable TRANS_DP_CTL */ |
6e3c9717 | 4141 | if (HAS_PCH_CPT(dev) && intel_crtc->config->has_dp_encoder) { |
9c4edaee VS |
4142 | const struct drm_display_mode *adjusted_mode = |
4143 | &intel_crtc->config->base.adjusted_mode; | |
dfd07d72 | 4144 | u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) >> 5; |
f0f59a00 | 4145 | i915_reg_t reg = TRANS_DP_CTL(pipe); |
5eddb70b CW |
4146 | temp = I915_READ(reg); |
4147 | temp &= ~(TRANS_DP_PORT_SEL_MASK | | |
220cad3c EA |
4148 | TRANS_DP_SYNC_MASK | |
4149 | TRANS_DP_BPC_MASK); | |
e3ef4479 | 4150 | temp |= TRANS_DP_OUTPUT_ENABLE; |
9325c9f0 | 4151 | temp |= bpc << 9; /* same format but at 11:9 */ |
c98e9dcf | 4152 | |
9c4edaee | 4153 | if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC) |
5eddb70b | 4154 | temp |= TRANS_DP_HSYNC_ACTIVE_HIGH; |
9c4edaee | 4155 | if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC) |
5eddb70b | 4156 | temp |= TRANS_DP_VSYNC_ACTIVE_HIGH; |
c98e9dcf JB |
4157 | |
4158 | switch (intel_trans_dp_port_sel(crtc)) { | |
c48b5305 | 4159 | case PORT_B: |
5eddb70b | 4160 | temp |= TRANS_DP_PORT_SEL_B; |
c98e9dcf | 4161 | break; |
c48b5305 | 4162 | case PORT_C: |
5eddb70b | 4163 | temp |= TRANS_DP_PORT_SEL_C; |
c98e9dcf | 4164 | break; |
c48b5305 | 4165 | case PORT_D: |
5eddb70b | 4166 | temp |= TRANS_DP_PORT_SEL_D; |
c98e9dcf JB |
4167 | break; |
4168 | default: | |
e95d41e1 | 4169 | BUG(); |
32f9d658 | 4170 | } |
2c07245f | 4171 | |
5eddb70b | 4172 | I915_WRITE(reg, temp); |
6be4a607 | 4173 | } |
b52eb4dc | 4174 | |
b8a4f404 | 4175 | ironlake_enable_pch_transcoder(dev_priv, pipe); |
f67a559d JB |
4176 | } |
4177 | ||
1507e5bd PZ |
4178 | static void lpt_pch_enable(struct drm_crtc *crtc) |
4179 | { | |
4180 | struct drm_device *dev = crtc->dev; | |
4181 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4182 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6e3c9717 | 4183 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
1507e5bd | 4184 | |
ab9412ba | 4185 | assert_pch_transcoder_disabled(dev_priv, TRANSCODER_A); |
1507e5bd | 4186 | |
8c52b5e8 | 4187 | lpt_program_iclkip(crtc); |
1507e5bd | 4188 | |
0540e488 | 4189 | /* Set transcoder timing. */ |
275f01b2 | 4190 | ironlake_pch_transcoder_set_timings(intel_crtc, PIPE_A); |
1507e5bd | 4191 | |
937bb610 | 4192 | lpt_enable_pch_transcoder(dev_priv, cpu_transcoder); |
f67a559d JB |
4193 | } |
4194 | ||
a1520318 | 4195 | static void cpt_verify_modeset(struct drm_device *dev, int pipe) |
d4270e57 JB |
4196 | { |
4197 | struct drm_i915_private *dev_priv = dev->dev_private; | |
f0f59a00 | 4198 | i915_reg_t dslreg = PIPEDSL(pipe); |
d4270e57 JB |
4199 | u32 temp; |
4200 | ||
4201 | temp = I915_READ(dslreg); | |
4202 | udelay(500); | |
4203 | if (wait_for(I915_READ(dslreg) != temp, 5)) { | |
d4270e57 | 4204 | if (wait_for(I915_READ(dslreg) != temp, 5)) |
84f44ce7 | 4205 | DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe)); |
d4270e57 JB |
4206 | } |
4207 | } | |
4208 | ||
86adf9d7 ML |
4209 | static int |
4210 | skl_update_scaler(struct intel_crtc_state *crtc_state, bool force_detach, | |
4211 | unsigned scaler_user, int *scaler_id, unsigned int rotation, | |
4212 | int src_w, int src_h, int dst_w, int dst_h) | |
a1b2278e | 4213 | { |
86adf9d7 ML |
4214 | struct intel_crtc_scaler_state *scaler_state = |
4215 | &crtc_state->scaler_state; | |
4216 | struct intel_crtc *intel_crtc = | |
4217 | to_intel_crtc(crtc_state->base.crtc); | |
a1b2278e | 4218 | int need_scaling; |
6156a456 CK |
4219 | |
4220 | need_scaling = intel_rotation_90_or_270(rotation) ? | |
4221 | (src_h != dst_w || src_w != dst_h): | |
4222 | (src_w != dst_w || src_h != dst_h); | |
a1b2278e CK |
4223 | |
4224 | /* | |
4225 | * if plane is being disabled or scaler is no more required or force detach | |
4226 | * - free scaler binded to this plane/crtc | |
4227 | * - in order to do this, update crtc->scaler_usage | |
4228 | * | |
4229 | * Here scaler state in crtc_state is set free so that | |
4230 | * scaler can be assigned to other user. Actual register | |
4231 | * update to free the scaler is done in plane/panel-fit programming. | |
4232 | * For this purpose crtc/plane_state->scaler_id isn't reset here. | |
4233 | */ | |
86adf9d7 | 4234 | if (force_detach || !need_scaling) { |
a1b2278e | 4235 | if (*scaler_id >= 0) { |
86adf9d7 | 4236 | scaler_state->scaler_users &= ~(1 << scaler_user); |
a1b2278e CK |
4237 | scaler_state->scalers[*scaler_id].in_use = 0; |
4238 | ||
86adf9d7 ML |
4239 | DRM_DEBUG_KMS("scaler_user index %u.%u: " |
4240 | "Staged freeing scaler id %d scaler_users = 0x%x\n", | |
4241 | intel_crtc->pipe, scaler_user, *scaler_id, | |
a1b2278e CK |
4242 | scaler_state->scaler_users); |
4243 | *scaler_id = -1; | |
4244 | } | |
4245 | return 0; | |
4246 | } | |
4247 | ||
4248 | /* range checks */ | |
4249 | if (src_w < SKL_MIN_SRC_W || src_h < SKL_MIN_SRC_H || | |
4250 | dst_w < SKL_MIN_DST_W || dst_h < SKL_MIN_DST_H || | |
4251 | ||
4252 | src_w > SKL_MAX_SRC_W || src_h > SKL_MAX_SRC_H || | |
4253 | dst_w > SKL_MAX_DST_W || dst_h > SKL_MAX_DST_H) { | |
86adf9d7 | 4254 | DRM_DEBUG_KMS("scaler_user index %u.%u: src %ux%u dst %ux%u " |
a1b2278e | 4255 | "size is out of scaler range\n", |
86adf9d7 | 4256 | intel_crtc->pipe, scaler_user, src_w, src_h, dst_w, dst_h); |
a1b2278e CK |
4257 | return -EINVAL; |
4258 | } | |
4259 | ||
86adf9d7 ML |
4260 | /* mark this plane as a scaler user in crtc_state */ |
4261 | scaler_state->scaler_users |= (1 << scaler_user); | |
4262 | DRM_DEBUG_KMS("scaler_user index %u.%u: " | |
4263 | "staged scaling request for %ux%u->%ux%u scaler_users = 0x%x\n", | |
4264 | intel_crtc->pipe, scaler_user, src_w, src_h, dst_w, dst_h, | |
4265 | scaler_state->scaler_users); | |
4266 | ||
4267 | return 0; | |
4268 | } | |
4269 | ||
4270 | /** | |
4271 | * skl_update_scaler_crtc - Stages update to scaler state for a given crtc. | |
4272 | * | |
4273 | * @state: crtc's scaler state | |
86adf9d7 ML |
4274 | * |
4275 | * Return | |
4276 | * 0 - scaler_usage updated successfully | |
4277 | * error - requested scaling cannot be supported or other error condition | |
4278 | */ | |
e435d6e5 | 4279 | int skl_update_scaler_crtc(struct intel_crtc_state *state) |
86adf9d7 ML |
4280 | { |
4281 | struct intel_crtc *intel_crtc = to_intel_crtc(state->base.crtc); | |
7c5f93b0 | 4282 | const struct drm_display_mode *adjusted_mode = &state->base.adjusted_mode; |
86adf9d7 ML |
4283 | |
4284 | DRM_DEBUG_KMS("Updating scaler for [CRTC:%i] scaler_user index %u.%u\n", | |
4285 | intel_crtc->base.base.id, intel_crtc->pipe, SKL_CRTC_INDEX); | |
4286 | ||
e435d6e5 | 4287 | return skl_update_scaler(state, !state->base.active, SKL_CRTC_INDEX, |
fa5a7970 | 4288 | &state->scaler_state.scaler_id, BIT(DRM_ROTATE_0), |
86adf9d7 | 4289 | state->pipe_src_w, state->pipe_src_h, |
aad941d5 | 4290 | adjusted_mode->crtc_hdisplay, adjusted_mode->crtc_vdisplay); |
86adf9d7 ML |
4291 | } |
4292 | ||
4293 | /** | |
4294 | * skl_update_scaler_plane - Stages update to scaler state for a given plane. | |
4295 | * | |
4296 | * @state: crtc's scaler state | |
86adf9d7 ML |
4297 | * @plane_state: atomic plane state to update |
4298 | * | |
4299 | * Return | |
4300 | * 0 - scaler_usage updated successfully | |
4301 | * error - requested scaling cannot be supported or other error condition | |
4302 | */ | |
da20eabd ML |
4303 | static int skl_update_scaler_plane(struct intel_crtc_state *crtc_state, |
4304 | struct intel_plane_state *plane_state) | |
86adf9d7 ML |
4305 | { |
4306 | ||
4307 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc); | |
da20eabd ML |
4308 | struct intel_plane *intel_plane = |
4309 | to_intel_plane(plane_state->base.plane); | |
86adf9d7 ML |
4310 | struct drm_framebuffer *fb = plane_state->base.fb; |
4311 | int ret; | |
4312 | ||
4313 | bool force_detach = !fb || !plane_state->visible; | |
4314 | ||
4315 | DRM_DEBUG_KMS("Updating scaler for [PLANE:%d] scaler_user index %u.%u\n", | |
4316 | intel_plane->base.base.id, intel_crtc->pipe, | |
4317 | drm_plane_index(&intel_plane->base)); | |
4318 | ||
4319 | ret = skl_update_scaler(crtc_state, force_detach, | |
4320 | drm_plane_index(&intel_plane->base), | |
4321 | &plane_state->scaler_id, | |
4322 | plane_state->base.rotation, | |
4323 | drm_rect_width(&plane_state->src) >> 16, | |
4324 | drm_rect_height(&plane_state->src) >> 16, | |
4325 | drm_rect_width(&plane_state->dst), | |
4326 | drm_rect_height(&plane_state->dst)); | |
4327 | ||
4328 | if (ret || plane_state->scaler_id < 0) | |
4329 | return ret; | |
4330 | ||
a1b2278e | 4331 | /* check colorkey */ |
818ed961 | 4332 | if (plane_state->ckey.flags != I915_SET_COLORKEY_NONE) { |
86adf9d7 | 4333 | DRM_DEBUG_KMS("[PLANE:%d] scaling with color key not allowed", |
818ed961 | 4334 | intel_plane->base.base.id); |
a1b2278e CK |
4335 | return -EINVAL; |
4336 | } | |
4337 | ||
4338 | /* Check src format */ | |
86adf9d7 ML |
4339 | switch (fb->pixel_format) { |
4340 | case DRM_FORMAT_RGB565: | |
4341 | case DRM_FORMAT_XBGR8888: | |
4342 | case DRM_FORMAT_XRGB8888: | |
4343 | case DRM_FORMAT_ABGR8888: | |
4344 | case DRM_FORMAT_ARGB8888: | |
4345 | case DRM_FORMAT_XRGB2101010: | |
4346 | case DRM_FORMAT_XBGR2101010: | |
4347 | case DRM_FORMAT_YUYV: | |
4348 | case DRM_FORMAT_YVYU: | |
4349 | case DRM_FORMAT_UYVY: | |
4350 | case DRM_FORMAT_VYUY: | |
4351 | break; | |
4352 | default: | |
4353 | DRM_DEBUG_KMS("[PLANE:%d] FB:%d unsupported scaling format 0x%x\n", | |
4354 | intel_plane->base.base.id, fb->base.id, fb->pixel_format); | |
4355 | return -EINVAL; | |
a1b2278e CK |
4356 | } |
4357 | ||
a1b2278e CK |
4358 | return 0; |
4359 | } | |
4360 | ||
e435d6e5 ML |
4361 | static void skylake_scaler_disable(struct intel_crtc *crtc) |
4362 | { | |
4363 | int i; | |
4364 | ||
4365 | for (i = 0; i < crtc->num_scalers; i++) | |
4366 | skl_detach_scaler(crtc, i); | |
4367 | } | |
4368 | ||
4369 | static void skylake_pfit_enable(struct intel_crtc *crtc) | |
bd2e244f JB |
4370 | { |
4371 | struct drm_device *dev = crtc->base.dev; | |
4372 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4373 | int pipe = crtc->pipe; | |
a1b2278e CK |
4374 | struct intel_crtc_scaler_state *scaler_state = |
4375 | &crtc->config->scaler_state; | |
4376 | ||
4377 | DRM_DEBUG_KMS("for crtc_state = %p\n", crtc->config); | |
4378 | ||
6e3c9717 | 4379 | if (crtc->config->pch_pfit.enabled) { |
a1b2278e CK |
4380 | int id; |
4381 | ||
4382 | if (WARN_ON(crtc->config->scaler_state.scaler_id < 0)) { | |
4383 | DRM_ERROR("Requesting pfit without getting a scaler first\n"); | |
4384 | return; | |
4385 | } | |
4386 | ||
4387 | id = scaler_state->scaler_id; | |
4388 | I915_WRITE(SKL_PS_CTRL(pipe, id), PS_SCALER_EN | | |
4389 | PS_FILTER_MEDIUM | scaler_state->scalers[id].mode); | |
4390 | I915_WRITE(SKL_PS_WIN_POS(pipe, id), crtc->config->pch_pfit.pos); | |
4391 | I915_WRITE(SKL_PS_WIN_SZ(pipe, id), crtc->config->pch_pfit.size); | |
4392 | ||
4393 | DRM_DEBUG_KMS("for crtc_state = %p scaler_id = %d\n", crtc->config, id); | |
bd2e244f JB |
4394 | } |
4395 | } | |
4396 | ||
b074cec8 JB |
4397 | static void ironlake_pfit_enable(struct intel_crtc *crtc) |
4398 | { | |
4399 | struct drm_device *dev = crtc->base.dev; | |
4400 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4401 | int pipe = crtc->pipe; | |
4402 | ||
6e3c9717 | 4403 | if (crtc->config->pch_pfit.enabled) { |
b074cec8 JB |
4404 | /* Force use of hard-coded filter coefficients |
4405 | * as some pre-programmed values are broken, | |
4406 | * e.g. x201. | |
4407 | */ | |
4408 | if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) | |
4409 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 | | |
4410 | PF_PIPE_SEL_IVB(pipe)); | |
4411 | else | |
4412 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3); | |
6e3c9717 ACO |
4413 | I915_WRITE(PF_WIN_POS(pipe), crtc->config->pch_pfit.pos); |
4414 | I915_WRITE(PF_WIN_SZ(pipe), crtc->config->pch_pfit.size); | |
d4270e57 JB |
4415 | } |
4416 | } | |
4417 | ||
20bc8673 | 4418 | void hsw_enable_ips(struct intel_crtc *crtc) |
d77e4531 | 4419 | { |
cea165c3 VS |
4420 | struct drm_device *dev = crtc->base.dev; |
4421 | struct drm_i915_private *dev_priv = dev->dev_private; | |
d77e4531 | 4422 | |
6e3c9717 | 4423 | if (!crtc->config->ips_enabled) |
d77e4531 PZ |
4424 | return; |
4425 | ||
307e4498 ML |
4426 | /* |
4427 | * We can only enable IPS after we enable a plane and wait for a vblank | |
4428 | * This function is called from post_plane_update, which is run after | |
4429 | * a vblank wait. | |
4430 | */ | |
cea165c3 | 4431 | |
d77e4531 | 4432 | assert_plane_enabled(dev_priv, crtc->plane); |
cea165c3 | 4433 | if (IS_BROADWELL(dev)) { |
2a114cc1 BW |
4434 | mutex_lock(&dev_priv->rps.hw_lock); |
4435 | WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0xc0000000)); | |
4436 | mutex_unlock(&dev_priv->rps.hw_lock); | |
4437 | /* Quoting Art Runyan: "its not safe to expect any particular | |
4438 | * value in IPS_CTL bit 31 after enabling IPS through the | |
e59150dc JB |
4439 | * mailbox." Moreover, the mailbox may return a bogus state, |
4440 | * so we need to just enable it and continue on. | |
2a114cc1 BW |
4441 | */ |
4442 | } else { | |
4443 | I915_WRITE(IPS_CTL, IPS_ENABLE); | |
4444 | /* The bit only becomes 1 in the next vblank, so this wait here | |
4445 | * is essentially intel_wait_for_vblank. If we don't have this | |
4446 | * and don't wait for vblanks until the end of crtc_enable, then | |
4447 | * the HW state readout code will complain that the expected | |
4448 | * IPS_CTL value is not the one we read. */ | |
4449 | if (wait_for(I915_READ_NOTRACE(IPS_CTL) & IPS_ENABLE, 50)) | |
4450 | DRM_ERROR("Timed out waiting for IPS enable\n"); | |
4451 | } | |
d77e4531 PZ |
4452 | } |
4453 | ||
20bc8673 | 4454 | void hsw_disable_ips(struct intel_crtc *crtc) |
d77e4531 PZ |
4455 | { |
4456 | struct drm_device *dev = crtc->base.dev; | |
4457 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4458 | ||
6e3c9717 | 4459 | if (!crtc->config->ips_enabled) |
d77e4531 PZ |
4460 | return; |
4461 | ||
4462 | assert_plane_enabled(dev_priv, crtc->plane); | |
23d0b130 | 4463 | if (IS_BROADWELL(dev)) { |
2a114cc1 BW |
4464 | mutex_lock(&dev_priv->rps.hw_lock); |
4465 | WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0)); | |
4466 | mutex_unlock(&dev_priv->rps.hw_lock); | |
23d0b130 BW |
4467 | /* wait for pcode to finish disabling IPS, which may take up to 42ms */ |
4468 | if (wait_for((I915_READ(IPS_CTL) & IPS_ENABLE) == 0, 42)) | |
4469 | DRM_ERROR("Timed out waiting for IPS disable\n"); | |
e59150dc | 4470 | } else { |
2a114cc1 | 4471 | I915_WRITE(IPS_CTL, 0); |
e59150dc JB |
4472 | POSTING_READ(IPS_CTL); |
4473 | } | |
d77e4531 PZ |
4474 | |
4475 | /* We need to wait for a vblank before we can disable the plane. */ | |
4476 | intel_wait_for_vblank(dev, crtc->pipe); | |
4477 | } | |
4478 | ||
7cac945f | 4479 | static void intel_crtc_dpms_overlay_disable(struct intel_crtc *intel_crtc) |
d3eedb1a | 4480 | { |
7cac945f | 4481 | if (intel_crtc->overlay) { |
d3eedb1a VS |
4482 | struct drm_device *dev = intel_crtc->base.dev; |
4483 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4484 | ||
4485 | mutex_lock(&dev->struct_mutex); | |
4486 | dev_priv->mm.interruptible = false; | |
4487 | (void) intel_overlay_switch_off(intel_crtc->overlay); | |
4488 | dev_priv->mm.interruptible = true; | |
4489 | mutex_unlock(&dev->struct_mutex); | |
4490 | } | |
4491 | ||
4492 | /* Let userspace switch the overlay on again. In most cases userspace | |
4493 | * has to recompute where to put it anyway. | |
4494 | */ | |
4495 | } | |
4496 | ||
87d4300a ML |
4497 | /** |
4498 | * intel_post_enable_primary - Perform operations after enabling primary plane | |
4499 | * @crtc: the CRTC whose primary plane was just enabled | |
4500 | * | |
4501 | * Performs potentially sleeping operations that must be done after the primary | |
4502 | * plane is enabled, such as updating FBC and IPS. Note that this may be | |
4503 | * called due to an explicit primary plane update, or due to an implicit | |
4504 | * re-enable that is caused when a sprite plane is updated to no longer | |
4505 | * completely hide the primary plane. | |
4506 | */ | |
4507 | static void | |
4508 | intel_post_enable_primary(struct drm_crtc *crtc) | |
a5c4d7bc VS |
4509 | { |
4510 | struct drm_device *dev = crtc->dev; | |
87d4300a | 4511 | struct drm_i915_private *dev_priv = dev->dev_private; |
a5c4d7bc VS |
4512 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
4513 | int pipe = intel_crtc->pipe; | |
a5c4d7bc | 4514 | |
87d4300a ML |
4515 | /* |
4516 | * FIXME IPS should be fine as long as one plane is | |
4517 | * enabled, but in practice it seems to have problems | |
4518 | * when going from primary only to sprite only and vice | |
4519 | * versa. | |
4520 | */ | |
a5c4d7bc VS |
4521 | hsw_enable_ips(intel_crtc); |
4522 | ||
f99d7069 | 4523 | /* |
87d4300a ML |
4524 | * Gen2 reports pipe underruns whenever all planes are disabled. |
4525 | * So don't enable underrun reporting before at least some planes | |
4526 | * are enabled. | |
4527 | * FIXME: Need to fix the logic to work when we turn off all planes | |
4528 | * but leave the pipe running. | |
f99d7069 | 4529 | */ |
87d4300a ML |
4530 | if (IS_GEN2(dev)) |
4531 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); | |
4532 | ||
aca7b684 VS |
4533 | /* Underruns don't always raise interrupts, so check manually. */ |
4534 | intel_check_cpu_fifo_underruns(dev_priv); | |
4535 | intel_check_pch_fifo_underruns(dev_priv); | |
a5c4d7bc VS |
4536 | } |
4537 | ||
2622a081 | 4538 | /* FIXME move all this to pre_plane_update() with proper state tracking */ |
87d4300a ML |
4539 | static void |
4540 | intel_pre_disable_primary(struct drm_crtc *crtc) | |
a5c4d7bc VS |
4541 | { |
4542 | struct drm_device *dev = crtc->dev; | |
4543 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4544 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4545 | int pipe = intel_crtc->pipe; | |
a5c4d7bc | 4546 | |
87d4300a ML |
4547 | /* |
4548 | * Gen2 reports pipe underruns whenever all planes are disabled. | |
4549 | * So diasble underrun reporting before all the planes get disabled. | |
4550 | * FIXME: Need to fix the logic to work when we turn off all planes | |
4551 | * but leave the pipe running. | |
4552 | */ | |
4553 | if (IS_GEN2(dev)) | |
4554 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); | |
a5c4d7bc | 4555 | |
2622a081 VS |
4556 | /* |
4557 | * FIXME IPS should be fine as long as one plane is | |
4558 | * enabled, but in practice it seems to have problems | |
4559 | * when going from primary only to sprite only and vice | |
4560 | * versa. | |
4561 | */ | |
4562 | hsw_disable_ips(intel_crtc); | |
4563 | } | |
4564 | ||
4565 | /* FIXME get rid of this and use pre_plane_update */ | |
4566 | static void | |
4567 | intel_pre_disable_primary_noatomic(struct drm_crtc *crtc) | |
4568 | { | |
4569 | struct drm_device *dev = crtc->dev; | |
4570 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4571 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4572 | int pipe = intel_crtc->pipe; | |
4573 | ||
4574 | intel_pre_disable_primary(crtc); | |
4575 | ||
87d4300a ML |
4576 | /* |
4577 | * Vblank time updates from the shadow to live plane control register | |
4578 | * are blocked if the memory self-refresh mode is active at that | |
4579 | * moment. So to make sure the plane gets truly disabled, disable | |
4580 | * first the self-refresh mode. The self-refresh enable bit in turn | |
4581 | * will be checked/applied by the HW only at the next frame start | |
4582 | * event which is after the vblank start event, so we need to have a | |
4583 | * wait-for-vblank between disabling the plane and the pipe. | |
4584 | */ | |
262cd2e1 | 4585 | if (HAS_GMCH_DISPLAY(dev)) { |
87d4300a | 4586 | intel_set_memory_cxsr(dev_priv, false); |
262cd2e1 VS |
4587 | dev_priv->wm.vlv.cxsr = false; |
4588 | intel_wait_for_vblank(dev, pipe); | |
4589 | } | |
87d4300a ML |
4590 | } |
4591 | ||
cd202f69 | 4592 | static void intel_post_plane_update(struct intel_crtc_state *old_crtc_state) |
ac21b225 | 4593 | { |
cd202f69 ML |
4594 | struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->base.crtc); |
4595 | struct drm_atomic_state *old_state = old_crtc_state->base.state; | |
92826fcd ML |
4596 | struct intel_crtc_state *pipe_config = |
4597 | to_intel_crtc_state(crtc->base.state); | |
ac21b225 | 4598 | struct drm_device *dev = crtc->base.dev; |
cd202f69 ML |
4599 | struct drm_plane *primary = crtc->base.primary; |
4600 | struct drm_plane_state *old_pri_state = | |
4601 | drm_atomic_get_existing_plane_state(old_state, primary); | |
ac21b225 | 4602 | |
cd202f69 | 4603 | intel_frontbuffer_flip(dev, pipe_config->fb_bits); |
ac21b225 | 4604 | |
ab1d3a0e | 4605 | crtc->wm.cxsr_allowed = true; |
852eb00d | 4606 | |
caed361d | 4607 | if (pipe_config->update_wm_post && pipe_config->base.active) |
f015c551 VS |
4608 | intel_update_watermarks(&crtc->base); |
4609 | ||
cd202f69 ML |
4610 | if (old_pri_state) { |
4611 | struct intel_plane_state *primary_state = | |
4612 | to_intel_plane_state(primary->state); | |
4613 | struct intel_plane_state *old_primary_state = | |
4614 | to_intel_plane_state(old_pri_state); | |
ac21b225 | 4615 | |
31ae71fc | 4616 | intel_fbc_post_update(crtc); |
ac21b225 | 4617 | |
cd202f69 ML |
4618 | if (primary_state->visible && |
4619 | (needs_modeset(&pipe_config->base) || | |
4620 | !old_primary_state->visible)) | |
4621 | intel_post_enable_primary(&crtc->base); | |
4622 | } | |
ac21b225 ML |
4623 | } |
4624 | ||
5c74cd73 | 4625 | static void intel_pre_plane_update(struct intel_crtc_state *old_crtc_state) |
ac21b225 | 4626 | { |
5c74cd73 | 4627 | struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->base.crtc); |
ac21b225 | 4628 | struct drm_device *dev = crtc->base.dev; |
eddfcbcd | 4629 | struct drm_i915_private *dev_priv = dev->dev_private; |
ab1d3a0e ML |
4630 | struct intel_crtc_state *pipe_config = |
4631 | to_intel_crtc_state(crtc->base.state); | |
5c74cd73 ML |
4632 | struct drm_atomic_state *old_state = old_crtc_state->base.state; |
4633 | struct drm_plane *primary = crtc->base.primary; | |
4634 | struct drm_plane_state *old_pri_state = | |
4635 | drm_atomic_get_existing_plane_state(old_state, primary); | |
4636 | bool modeset = needs_modeset(&pipe_config->base); | |
ac21b225 | 4637 | |
5c74cd73 ML |
4638 | if (old_pri_state) { |
4639 | struct intel_plane_state *primary_state = | |
4640 | to_intel_plane_state(primary->state); | |
4641 | struct intel_plane_state *old_primary_state = | |
4642 | to_intel_plane_state(old_pri_state); | |
4643 | ||
31ae71fc ML |
4644 | intel_fbc_pre_update(crtc); |
4645 | ||
5c74cd73 ML |
4646 | if (old_primary_state->visible && |
4647 | (modeset || !primary_state->visible)) | |
4648 | intel_pre_disable_primary(&crtc->base); | |
4649 | } | |
852eb00d | 4650 | |
ab1d3a0e | 4651 | if (pipe_config->disable_cxsr) { |
852eb00d | 4652 | crtc->wm.cxsr_allowed = false; |
2dfd178d | 4653 | |
2622a081 VS |
4654 | /* |
4655 | * Vblank time updates from the shadow to live plane control register | |
4656 | * are blocked if the memory self-refresh mode is active at that | |
4657 | * moment. So to make sure the plane gets truly disabled, disable | |
4658 | * first the self-refresh mode. The self-refresh enable bit in turn | |
4659 | * will be checked/applied by the HW only at the next frame start | |
4660 | * event which is after the vblank start event, so we need to have a | |
4661 | * wait-for-vblank between disabling the plane and the pipe. | |
4662 | */ | |
4663 | if (old_crtc_state->base.active) { | |
2dfd178d | 4664 | intel_set_memory_cxsr(dev_priv, false); |
2622a081 VS |
4665 | dev_priv->wm.vlv.cxsr = false; |
4666 | intel_wait_for_vblank(dev, crtc->pipe); | |
4667 | } | |
852eb00d | 4668 | } |
92826fcd | 4669 | |
ed4a6a7c MR |
4670 | /* |
4671 | * IVB workaround: must disable low power watermarks for at least | |
4672 | * one frame before enabling scaling. LP watermarks can be re-enabled | |
4673 | * when scaling is disabled. | |
4674 | * | |
4675 | * WaCxSRDisabledForSpriteScaling:ivb | |
4676 | */ | |
4677 | if (pipe_config->disable_lp_wm) { | |
4678 | ilk_disable_lp_wm(dev); | |
4679 | intel_wait_for_vblank(dev, crtc->pipe); | |
4680 | } | |
4681 | ||
4682 | /* | |
4683 | * If we're doing a modeset, we're done. No need to do any pre-vblank | |
4684 | * watermark programming here. | |
4685 | */ | |
4686 | if (needs_modeset(&pipe_config->base)) | |
4687 | return; | |
4688 | ||
4689 | /* | |
4690 | * For platforms that support atomic watermarks, program the | |
4691 | * 'intermediate' watermarks immediately. On pre-gen9 platforms, these | |
4692 | * will be the intermediate values that are safe for both pre- and | |
4693 | * post- vblank; when vblank happens, the 'active' values will be set | |
4694 | * to the final 'target' values and we'll do this again to get the | |
4695 | * optimal watermarks. For gen9+ platforms, the values we program here | |
4696 | * will be the final target values which will get automatically latched | |
4697 | * at vblank time; no further programming will be necessary. | |
4698 | * | |
4699 | * If a platform hasn't been transitioned to atomic watermarks yet, | |
4700 | * we'll continue to update watermarks the old way, if flags tell | |
4701 | * us to. | |
4702 | */ | |
4703 | if (dev_priv->display.initial_watermarks != NULL) | |
4704 | dev_priv->display.initial_watermarks(pipe_config); | |
caed361d | 4705 | else if (pipe_config->update_wm_pre) |
92826fcd | 4706 | intel_update_watermarks(&crtc->base); |
ac21b225 ML |
4707 | } |
4708 | ||
d032ffa0 | 4709 | static void intel_crtc_disable_planes(struct drm_crtc *crtc, unsigned plane_mask) |
87d4300a ML |
4710 | { |
4711 | struct drm_device *dev = crtc->dev; | |
4712 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
d032ffa0 | 4713 | struct drm_plane *p; |
87d4300a ML |
4714 | int pipe = intel_crtc->pipe; |
4715 | ||
7cac945f | 4716 | intel_crtc_dpms_overlay_disable(intel_crtc); |
27321ae8 | 4717 | |
d032ffa0 ML |
4718 | drm_for_each_plane_mask(p, dev, plane_mask) |
4719 | to_intel_plane(p)->disable_plane(p, crtc); | |
f98551ae | 4720 | |
f99d7069 DV |
4721 | /* |
4722 | * FIXME: Once we grow proper nuclear flip support out of this we need | |
4723 | * to compute the mask of flip planes precisely. For the time being | |
4724 | * consider this a flip to a NULL plane. | |
4725 | */ | |
4726 | intel_frontbuffer_flip(dev, INTEL_FRONTBUFFER_ALL_MASK(pipe)); | |
a5c4d7bc VS |
4727 | } |
4728 | ||
f67a559d JB |
4729 | static void ironlake_crtc_enable(struct drm_crtc *crtc) |
4730 | { | |
4731 | struct drm_device *dev = crtc->dev; | |
4732 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4733 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 4734 | struct intel_encoder *encoder; |
f67a559d | 4735 | int pipe = intel_crtc->pipe; |
b95c5321 ML |
4736 | struct intel_crtc_state *pipe_config = |
4737 | to_intel_crtc_state(crtc->state); | |
f67a559d | 4738 | |
53d9f4e9 | 4739 | if (WARN_ON(intel_crtc->active)) |
f67a559d JB |
4740 | return; |
4741 | ||
b2c0593a VS |
4742 | /* |
4743 | * Sometimes spurious CPU pipe underruns happen during FDI | |
4744 | * training, at least with VGA+HDMI cloning. Suppress them. | |
4745 | * | |
4746 | * On ILK we get an occasional spurious CPU pipe underruns | |
4747 | * between eDP port A enable and vdd enable. Also PCH port | |
4748 | * enable seems to result in the occasional CPU pipe underrun. | |
4749 | * | |
4750 | * Spurious PCH underruns also occur during PCH enabling. | |
4751 | */ | |
4752 | if (intel_crtc->config->has_pch_encoder || IS_GEN5(dev_priv)) | |
4753 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); | |
81b088ca VS |
4754 | if (intel_crtc->config->has_pch_encoder) |
4755 | intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, false); | |
4756 | ||
6e3c9717 | 4757 | if (intel_crtc->config->has_pch_encoder) |
b14b1055 DV |
4758 | intel_prepare_shared_dpll(intel_crtc); |
4759 | ||
6e3c9717 | 4760 | if (intel_crtc->config->has_dp_encoder) |
fe3cd48d | 4761 | intel_dp_set_m_n(intel_crtc, M1_N1); |
29407aab DV |
4762 | |
4763 | intel_set_pipe_timings(intel_crtc); | |
bc58be60 | 4764 | intel_set_pipe_src_size(intel_crtc); |
29407aab | 4765 | |
6e3c9717 | 4766 | if (intel_crtc->config->has_pch_encoder) { |
29407aab | 4767 | intel_cpu_transcoder_set_m_n(intel_crtc, |
6e3c9717 | 4768 | &intel_crtc->config->fdi_m_n, NULL); |
29407aab DV |
4769 | } |
4770 | ||
4771 | ironlake_set_pipeconf(crtc); | |
4772 | ||
f67a559d | 4773 | intel_crtc->active = true; |
8664281b | 4774 | |
f6736a1a | 4775 | for_each_encoder_on_crtc(dev, crtc, encoder) |
952735ee DV |
4776 | if (encoder->pre_enable) |
4777 | encoder->pre_enable(encoder); | |
f67a559d | 4778 | |
6e3c9717 | 4779 | if (intel_crtc->config->has_pch_encoder) { |
fff367c7 DV |
4780 | /* Note: FDI PLL enabling _must_ be done before we enable the |
4781 | * cpu pipes, hence this is separate from all the other fdi/pch | |
4782 | * enabling. */ | |
88cefb6c | 4783 | ironlake_fdi_pll_enable(intel_crtc); |
46b6f814 DV |
4784 | } else { |
4785 | assert_fdi_tx_disabled(dev_priv, pipe); | |
4786 | assert_fdi_rx_disabled(dev_priv, pipe); | |
4787 | } | |
f67a559d | 4788 | |
b074cec8 | 4789 | ironlake_pfit_enable(intel_crtc); |
f67a559d | 4790 | |
9c54c0dd JB |
4791 | /* |
4792 | * On ILK+ LUT must be loaded before the pipe is running but with | |
4793 | * clocks enabled | |
4794 | */ | |
b95c5321 | 4795 | intel_color_load_luts(&pipe_config->base); |
9c54c0dd | 4796 | |
1d5bf5d9 ID |
4797 | if (dev_priv->display.initial_watermarks != NULL) |
4798 | dev_priv->display.initial_watermarks(intel_crtc->config); | |
e1fdc473 | 4799 | intel_enable_pipe(intel_crtc); |
f67a559d | 4800 | |
6e3c9717 | 4801 | if (intel_crtc->config->has_pch_encoder) |
f67a559d | 4802 | ironlake_pch_enable(crtc); |
c98e9dcf | 4803 | |
f9b61ff6 DV |
4804 | assert_vblank_disabled(crtc); |
4805 | drm_crtc_vblank_on(crtc); | |
4806 | ||
fa5c73b1 DV |
4807 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4808 | encoder->enable(encoder); | |
61b77ddd DV |
4809 | |
4810 | if (HAS_PCH_CPT(dev)) | |
a1520318 | 4811 | cpt_verify_modeset(dev, intel_crtc->pipe); |
37ca8d4c VS |
4812 | |
4813 | /* Must wait for vblank to avoid spurious PCH FIFO underruns */ | |
4814 | if (intel_crtc->config->has_pch_encoder) | |
4815 | intel_wait_for_vblank(dev, pipe); | |
b2c0593a | 4816 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
37ca8d4c | 4817 | intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, true); |
6be4a607 JB |
4818 | } |
4819 | ||
42db64ef PZ |
4820 | /* IPS only exists on ULT machines and is tied to pipe A. */ |
4821 | static bool hsw_crtc_supports_ips(struct intel_crtc *crtc) | |
4822 | { | |
f5adf94e | 4823 | return HAS_IPS(crtc->base.dev) && crtc->pipe == PIPE_A; |
42db64ef PZ |
4824 | } |
4825 | ||
4f771f10 PZ |
4826 | static void haswell_crtc_enable(struct drm_crtc *crtc) |
4827 | { | |
4828 | struct drm_device *dev = crtc->dev; | |
4829 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4830 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4831 | struct intel_encoder *encoder; | |
99d736a2 | 4832 | int pipe = intel_crtc->pipe, hsw_workaround_pipe; |
4d1de975 | 4833 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
99d736a2 ML |
4834 | struct intel_crtc_state *pipe_config = |
4835 | to_intel_crtc_state(crtc->state); | |
4f771f10 | 4836 | |
53d9f4e9 | 4837 | if (WARN_ON(intel_crtc->active)) |
4f771f10 PZ |
4838 | return; |
4839 | ||
81b088ca VS |
4840 | if (intel_crtc->config->has_pch_encoder) |
4841 | intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A, | |
4842 | false); | |
4843 | ||
8106ddbd | 4844 | if (intel_crtc->config->shared_dpll) |
df8ad70c DV |
4845 | intel_enable_shared_dpll(intel_crtc); |
4846 | ||
6e3c9717 | 4847 | if (intel_crtc->config->has_dp_encoder) |
fe3cd48d | 4848 | intel_dp_set_m_n(intel_crtc, M1_N1); |
229fca97 | 4849 | |
4d1de975 JN |
4850 | if (!intel_crtc->config->has_dsi_encoder) |
4851 | intel_set_pipe_timings(intel_crtc); | |
229fca97 | 4852 | |
bc58be60 | 4853 | intel_set_pipe_src_size(intel_crtc); |
229fca97 | 4854 | |
4d1de975 JN |
4855 | if (cpu_transcoder != TRANSCODER_EDP && |
4856 | !transcoder_is_dsi(cpu_transcoder)) { | |
4857 | I915_WRITE(PIPE_MULT(cpu_transcoder), | |
6e3c9717 | 4858 | intel_crtc->config->pixel_multiplier - 1); |
ebb69c95 CT |
4859 | } |
4860 | ||
6e3c9717 | 4861 | if (intel_crtc->config->has_pch_encoder) { |
229fca97 | 4862 | intel_cpu_transcoder_set_m_n(intel_crtc, |
6e3c9717 | 4863 | &intel_crtc->config->fdi_m_n, NULL); |
229fca97 DV |
4864 | } |
4865 | ||
4d1de975 JN |
4866 | if (!intel_crtc->config->has_dsi_encoder) |
4867 | haswell_set_pipeconf(crtc); | |
4868 | ||
391bf048 | 4869 | haswell_set_pipemisc(crtc); |
229fca97 | 4870 | |
b95c5321 | 4871 | intel_color_set_csc(&pipe_config->base); |
229fca97 | 4872 | |
4f771f10 | 4873 | intel_crtc->active = true; |
8664281b | 4874 | |
6b698516 DV |
4875 | if (intel_crtc->config->has_pch_encoder) |
4876 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); | |
4877 | else | |
4878 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); | |
4879 | ||
7d4aefd0 | 4880 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
4f771f10 PZ |
4881 | if (encoder->pre_enable) |
4882 | encoder->pre_enable(encoder); | |
7d4aefd0 | 4883 | } |
4f771f10 | 4884 | |
d2d65408 | 4885 | if (intel_crtc->config->has_pch_encoder) |
4fe9467d | 4886 | dev_priv->display.fdi_link_train(crtc); |
4fe9467d | 4887 | |
a65347ba | 4888 | if (!intel_crtc->config->has_dsi_encoder) |
7d4aefd0 | 4889 | intel_ddi_enable_pipe_clock(intel_crtc); |
4f771f10 | 4890 | |
1c132b44 | 4891 | if (INTEL_INFO(dev)->gen >= 9) |
e435d6e5 | 4892 | skylake_pfit_enable(intel_crtc); |
ff6d9f55 | 4893 | else |
1c132b44 | 4894 | ironlake_pfit_enable(intel_crtc); |
4f771f10 PZ |
4895 | |
4896 | /* | |
4897 | * On ILK+ LUT must be loaded before the pipe is running but with | |
4898 | * clocks enabled | |
4899 | */ | |
b95c5321 | 4900 | intel_color_load_luts(&pipe_config->base); |
4f771f10 | 4901 | |
1f544388 | 4902 | intel_ddi_set_pipe_settings(crtc); |
a65347ba | 4903 | if (!intel_crtc->config->has_dsi_encoder) |
7d4aefd0 | 4904 | intel_ddi_enable_transcoder_func(crtc); |
4f771f10 | 4905 | |
1d5bf5d9 ID |
4906 | if (dev_priv->display.initial_watermarks != NULL) |
4907 | dev_priv->display.initial_watermarks(pipe_config); | |
4908 | else | |
4909 | intel_update_watermarks(crtc); | |
4d1de975 JN |
4910 | |
4911 | /* XXX: Do the pipe assertions at the right place for BXT DSI. */ | |
4912 | if (!intel_crtc->config->has_dsi_encoder) | |
4913 | intel_enable_pipe(intel_crtc); | |
42db64ef | 4914 | |
6e3c9717 | 4915 | if (intel_crtc->config->has_pch_encoder) |
1507e5bd | 4916 | lpt_pch_enable(crtc); |
4f771f10 | 4917 | |
a65347ba | 4918 | if (intel_crtc->config->dp_encoder_is_mst) |
0e32b39c DA |
4919 | intel_ddi_set_vc_payload_alloc(crtc, true); |
4920 | ||
f9b61ff6 DV |
4921 | assert_vblank_disabled(crtc); |
4922 | drm_crtc_vblank_on(crtc); | |
4923 | ||
8807e55b | 4924 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
4f771f10 | 4925 | encoder->enable(encoder); |
8807e55b JN |
4926 | intel_opregion_notify_encoder(encoder, true); |
4927 | } | |
4f771f10 | 4928 | |
6b698516 DV |
4929 | if (intel_crtc->config->has_pch_encoder) { |
4930 | intel_wait_for_vblank(dev, pipe); | |
4931 | intel_wait_for_vblank(dev, pipe); | |
4932 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); | |
d2d65408 VS |
4933 | intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A, |
4934 | true); | |
6b698516 | 4935 | } |
d2d65408 | 4936 | |
e4916946 PZ |
4937 | /* If we change the relative order between pipe/planes enabling, we need |
4938 | * to change the workaround. */ | |
99d736a2 ML |
4939 | hsw_workaround_pipe = pipe_config->hsw_workaround_pipe; |
4940 | if (IS_HASWELL(dev) && hsw_workaround_pipe != INVALID_PIPE) { | |
4941 | intel_wait_for_vblank(dev, hsw_workaround_pipe); | |
4942 | intel_wait_for_vblank(dev, hsw_workaround_pipe); | |
4943 | } | |
4f771f10 PZ |
4944 | } |
4945 | ||
bfd16b2a | 4946 | static void ironlake_pfit_disable(struct intel_crtc *crtc, bool force) |
3f8dce3a DV |
4947 | { |
4948 | struct drm_device *dev = crtc->base.dev; | |
4949 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4950 | int pipe = crtc->pipe; | |
4951 | ||
4952 | /* To avoid upsetting the power well on haswell only disable the pfit if | |
4953 | * it's in use. The hw state code will make sure we get this right. */ | |
bfd16b2a | 4954 | if (force || crtc->config->pch_pfit.enabled) { |
3f8dce3a DV |
4955 | I915_WRITE(PF_CTL(pipe), 0); |
4956 | I915_WRITE(PF_WIN_POS(pipe), 0); | |
4957 | I915_WRITE(PF_WIN_SZ(pipe), 0); | |
4958 | } | |
4959 | } | |
4960 | ||
6be4a607 JB |
4961 | static void ironlake_crtc_disable(struct drm_crtc *crtc) |
4962 | { | |
4963 | struct drm_device *dev = crtc->dev; | |
4964 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4965 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 4966 | struct intel_encoder *encoder; |
6be4a607 | 4967 | int pipe = intel_crtc->pipe; |
b52eb4dc | 4968 | |
b2c0593a VS |
4969 | /* |
4970 | * Sometimes spurious CPU pipe underruns happen when the | |
4971 | * pipe is already disabled, but FDI RX/TX is still enabled. | |
4972 | * Happens at least with VGA+HDMI cloning. Suppress them. | |
4973 | */ | |
4974 | if (intel_crtc->config->has_pch_encoder) { | |
4975 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); | |
37ca8d4c | 4976 | intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, false); |
b2c0593a | 4977 | } |
37ca8d4c | 4978 | |
ea9d758d DV |
4979 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4980 | encoder->disable(encoder); | |
4981 | ||
f9b61ff6 DV |
4982 | drm_crtc_vblank_off(crtc); |
4983 | assert_vblank_disabled(crtc); | |
4984 | ||
575f7ab7 | 4985 | intel_disable_pipe(intel_crtc); |
32f9d658 | 4986 | |
bfd16b2a | 4987 | ironlake_pfit_disable(intel_crtc, false); |
2c07245f | 4988 | |
b2c0593a | 4989 | if (intel_crtc->config->has_pch_encoder) |
5a74f70a VS |
4990 | ironlake_fdi_disable(crtc); |
4991 | ||
bf49ec8c DV |
4992 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4993 | if (encoder->post_disable) | |
4994 | encoder->post_disable(encoder); | |
2c07245f | 4995 | |
6e3c9717 | 4996 | if (intel_crtc->config->has_pch_encoder) { |
d925c59a | 4997 | ironlake_disable_pch_transcoder(dev_priv, pipe); |
6be4a607 | 4998 | |
d925c59a | 4999 | if (HAS_PCH_CPT(dev)) { |
f0f59a00 VS |
5000 | i915_reg_t reg; |
5001 | u32 temp; | |
5002 | ||
d925c59a DV |
5003 | /* disable TRANS_DP_CTL */ |
5004 | reg = TRANS_DP_CTL(pipe); | |
5005 | temp = I915_READ(reg); | |
5006 | temp &= ~(TRANS_DP_OUTPUT_ENABLE | | |
5007 | TRANS_DP_PORT_SEL_MASK); | |
5008 | temp |= TRANS_DP_PORT_SEL_NONE; | |
5009 | I915_WRITE(reg, temp); | |
5010 | ||
5011 | /* disable DPLL_SEL */ | |
5012 | temp = I915_READ(PCH_DPLL_SEL); | |
11887397 | 5013 | temp &= ~(TRANS_DPLL_ENABLE(pipe) | TRANS_DPLLB_SEL(pipe)); |
d925c59a | 5014 | I915_WRITE(PCH_DPLL_SEL, temp); |
9db4a9c7 | 5015 | } |
e3421a18 | 5016 | |
d925c59a DV |
5017 | ironlake_fdi_pll_disable(intel_crtc); |
5018 | } | |
81b088ca | 5019 | |
b2c0593a | 5020 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
81b088ca | 5021 | intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, true); |
6be4a607 | 5022 | } |
1b3c7a47 | 5023 | |
4f771f10 | 5024 | static void haswell_crtc_disable(struct drm_crtc *crtc) |
ee7b9f93 | 5025 | { |
4f771f10 PZ |
5026 | struct drm_device *dev = crtc->dev; |
5027 | struct drm_i915_private *dev_priv = dev->dev_private; | |
ee7b9f93 | 5028 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
4f771f10 | 5029 | struct intel_encoder *encoder; |
6e3c9717 | 5030 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
ee7b9f93 | 5031 | |
d2d65408 VS |
5032 | if (intel_crtc->config->has_pch_encoder) |
5033 | intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A, | |
5034 | false); | |
5035 | ||
8807e55b JN |
5036 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
5037 | intel_opregion_notify_encoder(encoder, false); | |
4f771f10 | 5038 | encoder->disable(encoder); |
8807e55b | 5039 | } |
4f771f10 | 5040 | |
f9b61ff6 DV |
5041 | drm_crtc_vblank_off(crtc); |
5042 | assert_vblank_disabled(crtc); | |
5043 | ||
4d1de975 JN |
5044 | /* XXX: Do the pipe assertions at the right place for BXT DSI. */ |
5045 | if (!intel_crtc->config->has_dsi_encoder) | |
5046 | intel_disable_pipe(intel_crtc); | |
4f771f10 | 5047 | |
6e3c9717 | 5048 | if (intel_crtc->config->dp_encoder_is_mst) |
a4bf214f VS |
5049 | intel_ddi_set_vc_payload_alloc(crtc, false); |
5050 | ||
a65347ba | 5051 | if (!intel_crtc->config->has_dsi_encoder) |
7d4aefd0 | 5052 | intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder); |
4f771f10 | 5053 | |
1c132b44 | 5054 | if (INTEL_INFO(dev)->gen >= 9) |
e435d6e5 | 5055 | skylake_scaler_disable(intel_crtc); |
ff6d9f55 | 5056 | else |
bfd16b2a | 5057 | ironlake_pfit_disable(intel_crtc, false); |
4f771f10 | 5058 | |
a65347ba | 5059 | if (!intel_crtc->config->has_dsi_encoder) |
7d4aefd0 | 5060 | intel_ddi_disable_pipe_clock(intel_crtc); |
4f771f10 | 5061 | |
97b040aa ID |
5062 | for_each_encoder_on_crtc(dev, crtc, encoder) |
5063 | if (encoder->post_disable) | |
5064 | encoder->post_disable(encoder); | |
81b088ca | 5065 | |
92966a37 VS |
5066 | if (intel_crtc->config->has_pch_encoder) { |
5067 | lpt_disable_pch_transcoder(dev_priv); | |
503a74e9 | 5068 | lpt_disable_iclkip(dev_priv); |
92966a37 VS |
5069 | intel_ddi_fdi_disable(crtc); |
5070 | ||
81b088ca VS |
5071 | intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A, |
5072 | true); | |
92966a37 | 5073 | } |
4f771f10 PZ |
5074 | } |
5075 | ||
2dd24552 JB |
5076 | static void i9xx_pfit_enable(struct intel_crtc *crtc) |
5077 | { | |
5078 | struct drm_device *dev = crtc->base.dev; | |
5079 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6e3c9717 | 5080 | struct intel_crtc_state *pipe_config = crtc->config; |
2dd24552 | 5081 | |
681a8504 | 5082 | if (!pipe_config->gmch_pfit.control) |
2dd24552 JB |
5083 | return; |
5084 | ||
2dd24552 | 5085 | /* |
c0b03411 DV |
5086 | * The panel fitter should only be adjusted whilst the pipe is disabled, |
5087 | * according to register description and PRM. | |
2dd24552 | 5088 | */ |
c0b03411 DV |
5089 | WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE); |
5090 | assert_pipe_disabled(dev_priv, crtc->pipe); | |
2dd24552 | 5091 | |
b074cec8 JB |
5092 | I915_WRITE(PFIT_PGM_RATIOS, pipe_config->gmch_pfit.pgm_ratios); |
5093 | I915_WRITE(PFIT_CONTROL, pipe_config->gmch_pfit.control); | |
5a80c45c DV |
5094 | |
5095 | /* Border color in case we don't scale up to the full screen. Black by | |
5096 | * default, change to something else for debugging. */ | |
5097 | I915_WRITE(BCLRPAT(crtc->pipe), 0); | |
2dd24552 JB |
5098 | } |
5099 | ||
d05410f9 DA |
5100 | static enum intel_display_power_domain port_to_power_domain(enum port port) |
5101 | { | |
5102 | switch (port) { | |
5103 | case PORT_A: | |
6331a704 | 5104 | return POWER_DOMAIN_PORT_DDI_A_LANES; |
d05410f9 | 5105 | case PORT_B: |
6331a704 | 5106 | return POWER_DOMAIN_PORT_DDI_B_LANES; |
d05410f9 | 5107 | case PORT_C: |
6331a704 | 5108 | return POWER_DOMAIN_PORT_DDI_C_LANES; |
d05410f9 | 5109 | case PORT_D: |
6331a704 | 5110 | return POWER_DOMAIN_PORT_DDI_D_LANES; |
d8e19f99 | 5111 | case PORT_E: |
6331a704 | 5112 | return POWER_DOMAIN_PORT_DDI_E_LANES; |
d05410f9 | 5113 | default: |
b9fec167 | 5114 | MISSING_CASE(port); |
d05410f9 DA |
5115 | return POWER_DOMAIN_PORT_OTHER; |
5116 | } | |
5117 | } | |
5118 | ||
25f78f58 VS |
5119 | static enum intel_display_power_domain port_to_aux_power_domain(enum port port) |
5120 | { | |
5121 | switch (port) { | |
5122 | case PORT_A: | |
5123 | return POWER_DOMAIN_AUX_A; | |
5124 | case PORT_B: | |
5125 | return POWER_DOMAIN_AUX_B; | |
5126 | case PORT_C: | |
5127 | return POWER_DOMAIN_AUX_C; | |
5128 | case PORT_D: | |
5129 | return POWER_DOMAIN_AUX_D; | |
5130 | case PORT_E: | |
5131 | /* FIXME: Check VBT for actual wiring of PORT E */ | |
5132 | return POWER_DOMAIN_AUX_D; | |
5133 | default: | |
b9fec167 | 5134 | MISSING_CASE(port); |
25f78f58 VS |
5135 | return POWER_DOMAIN_AUX_A; |
5136 | } | |
5137 | } | |
5138 | ||
319be8ae ID |
5139 | enum intel_display_power_domain |
5140 | intel_display_port_power_domain(struct intel_encoder *intel_encoder) | |
5141 | { | |
5142 | struct drm_device *dev = intel_encoder->base.dev; | |
5143 | struct intel_digital_port *intel_dig_port; | |
5144 | ||
5145 | switch (intel_encoder->type) { | |
5146 | case INTEL_OUTPUT_UNKNOWN: | |
5147 | /* Only DDI platforms should ever use this output type */ | |
5148 | WARN_ON_ONCE(!HAS_DDI(dev)); | |
5149 | case INTEL_OUTPUT_DISPLAYPORT: | |
5150 | case INTEL_OUTPUT_HDMI: | |
5151 | case INTEL_OUTPUT_EDP: | |
5152 | intel_dig_port = enc_to_dig_port(&intel_encoder->base); | |
d05410f9 | 5153 | return port_to_power_domain(intel_dig_port->port); |
0e32b39c DA |
5154 | case INTEL_OUTPUT_DP_MST: |
5155 | intel_dig_port = enc_to_mst(&intel_encoder->base)->primary; | |
5156 | return port_to_power_domain(intel_dig_port->port); | |
319be8ae ID |
5157 | case INTEL_OUTPUT_ANALOG: |
5158 | return POWER_DOMAIN_PORT_CRT; | |
5159 | case INTEL_OUTPUT_DSI: | |
5160 | return POWER_DOMAIN_PORT_DSI; | |
5161 | default: | |
5162 | return POWER_DOMAIN_PORT_OTHER; | |
5163 | } | |
5164 | } | |
5165 | ||
25f78f58 VS |
5166 | enum intel_display_power_domain |
5167 | intel_display_port_aux_power_domain(struct intel_encoder *intel_encoder) | |
5168 | { | |
5169 | struct drm_device *dev = intel_encoder->base.dev; | |
5170 | struct intel_digital_port *intel_dig_port; | |
5171 | ||
5172 | switch (intel_encoder->type) { | |
5173 | case INTEL_OUTPUT_UNKNOWN: | |
651174a4 ID |
5174 | case INTEL_OUTPUT_HDMI: |
5175 | /* | |
5176 | * Only DDI platforms should ever use these output types. | |
5177 | * We can get here after the HDMI detect code has already set | |
5178 | * the type of the shared encoder. Since we can't be sure | |
5179 | * what's the status of the given connectors, play safe and | |
5180 | * run the DP detection too. | |
5181 | */ | |
25f78f58 VS |
5182 | WARN_ON_ONCE(!HAS_DDI(dev)); |
5183 | case INTEL_OUTPUT_DISPLAYPORT: | |
5184 | case INTEL_OUTPUT_EDP: | |
5185 | intel_dig_port = enc_to_dig_port(&intel_encoder->base); | |
5186 | return port_to_aux_power_domain(intel_dig_port->port); | |
5187 | case INTEL_OUTPUT_DP_MST: | |
5188 | intel_dig_port = enc_to_mst(&intel_encoder->base)->primary; | |
5189 | return port_to_aux_power_domain(intel_dig_port->port); | |
5190 | default: | |
b9fec167 | 5191 | MISSING_CASE(intel_encoder->type); |
25f78f58 VS |
5192 | return POWER_DOMAIN_AUX_A; |
5193 | } | |
5194 | } | |
5195 | ||
74bff5f9 ML |
5196 | static unsigned long get_crtc_power_domains(struct drm_crtc *crtc, |
5197 | struct intel_crtc_state *crtc_state) | |
77d22dca | 5198 | { |
319be8ae | 5199 | struct drm_device *dev = crtc->dev; |
74bff5f9 | 5200 | struct drm_encoder *encoder; |
319be8ae ID |
5201 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5202 | enum pipe pipe = intel_crtc->pipe; | |
77d22dca | 5203 | unsigned long mask; |
74bff5f9 | 5204 | enum transcoder transcoder = crtc_state->cpu_transcoder; |
77d22dca | 5205 | |
74bff5f9 | 5206 | if (!crtc_state->base.active) |
292b990e ML |
5207 | return 0; |
5208 | ||
77d22dca ID |
5209 | mask = BIT(POWER_DOMAIN_PIPE(pipe)); |
5210 | mask |= BIT(POWER_DOMAIN_TRANSCODER(transcoder)); | |
74bff5f9 ML |
5211 | if (crtc_state->pch_pfit.enabled || |
5212 | crtc_state->pch_pfit.force_thru) | |
77d22dca ID |
5213 | mask |= BIT(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe)); |
5214 | ||
74bff5f9 ML |
5215 | drm_for_each_encoder_mask(encoder, dev, crtc_state->base.encoder_mask) { |
5216 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); | |
5217 | ||
319be8ae | 5218 | mask |= BIT(intel_display_port_power_domain(intel_encoder)); |
74bff5f9 | 5219 | } |
319be8ae | 5220 | |
15e7ec29 ML |
5221 | if (crtc_state->shared_dpll) |
5222 | mask |= BIT(POWER_DOMAIN_PLLS); | |
5223 | ||
77d22dca ID |
5224 | return mask; |
5225 | } | |
5226 | ||
74bff5f9 ML |
5227 | static unsigned long |
5228 | modeset_get_crtc_power_domains(struct drm_crtc *crtc, | |
5229 | struct intel_crtc_state *crtc_state) | |
77d22dca | 5230 | { |
292b990e ML |
5231 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
5232 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5233 | enum intel_display_power_domain domain; | |
5234 | unsigned long domains, new_domains, old_domains; | |
77d22dca | 5235 | |
292b990e | 5236 | old_domains = intel_crtc->enabled_power_domains; |
74bff5f9 ML |
5237 | intel_crtc->enabled_power_domains = new_domains = |
5238 | get_crtc_power_domains(crtc, crtc_state); | |
77d22dca | 5239 | |
292b990e ML |
5240 | domains = new_domains & ~old_domains; |
5241 | ||
5242 | for_each_power_domain(domain, domains) | |
5243 | intel_display_power_get(dev_priv, domain); | |
5244 | ||
5245 | return old_domains & ~new_domains; | |
5246 | } | |
5247 | ||
5248 | static void modeset_put_power_domains(struct drm_i915_private *dev_priv, | |
5249 | unsigned long domains) | |
5250 | { | |
5251 | enum intel_display_power_domain domain; | |
5252 | ||
5253 | for_each_power_domain(domain, domains) | |
5254 | intel_display_power_put(dev_priv, domain); | |
5255 | } | |
77d22dca | 5256 | |
adafdc6f MK |
5257 | static int intel_compute_max_dotclk(struct drm_i915_private *dev_priv) |
5258 | { | |
5259 | int max_cdclk_freq = dev_priv->max_cdclk_freq; | |
5260 | ||
5261 | if (INTEL_INFO(dev_priv)->gen >= 9 || | |
5262 | IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) | |
5263 | return max_cdclk_freq; | |
5264 | else if (IS_CHERRYVIEW(dev_priv)) | |
5265 | return max_cdclk_freq*95/100; | |
5266 | else if (INTEL_INFO(dev_priv)->gen < 4) | |
5267 | return 2*max_cdclk_freq*90/100; | |
5268 | else | |
5269 | return max_cdclk_freq*90/100; | |
5270 | } | |
5271 | ||
560a7ae4 DL |
5272 | static void intel_update_max_cdclk(struct drm_device *dev) |
5273 | { | |
5274 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5275 | ||
ef11bdb3 | 5276 | if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) { |
560a7ae4 DL |
5277 | u32 limit = I915_READ(SKL_DFSM) & SKL_DFSM_CDCLK_LIMIT_MASK; |
5278 | ||
5279 | if (limit == SKL_DFSM_CDCLK_LIMIT_675) | |
5280 | dev_priv->max_cdclk_freq = 675000; | |
5281 | else if (limit == SKL_DFSM_CDCLK_LIMIT_540) | |
5282 | dev_priv->max_cdclk_freq = 540000; | |
5283 | else if (limit == SKL_DFSM_CDCLK_LIMIT_450) | |
5284 | dev_priv->max_cdclk_freq = 450000; | |
5285 | else | |
5286 | dev_priv->max_cdclk_freq = 337500; | |
281c114f MR |
5287 | } else if (IS_BROXTON(dev)) { |
5288 | dev_priv->max_cdclk_freq = 624000; | |
560a7ae4 DL |
5289 | } else if (IS_BROADWELL(dev)) { |
5290 | /* | |
5291 | * FIXME with extra cooling we can allow | |
5292 | * 540 MHz for ULX and 675 Mhz for ULT. | |
5293 | * How can we know if extra cooling is | |
5294 | * available? PCI ID, VTB, something else? | |
5295 | */ | |
5296 | if (I915_READ(FUSE_STRAP) & HSW_CDCLK_LIMIT) | |
5297 | dev_priv->max_cdclk_freq = 450000; | |
5298 | else if (IS_BDW_ULX(dev)) | |
5299 | dev_priv->max_cdclk_freq = 450000; | |
5300 | else if (IS_BDW_ULT(dev)) | |
5301 | dev_priv->max_cdclk_freq = 540000; | |
5302 | else | |
5303 | dev_priv->max_cdclk_freq = 675000; | |
0904deaf MK |
5304 | } else if (IS_CHERRYVIEW(dev)) { |
5305 | dev_priv->max_cdclk_freq = 320000; | |
560a7ae4 DL |
5306 | } else if (IS_VALLEYVIEW(dev)) { |
5307 | dev_priv->max_cdclk_freq = 400000; | |
5308 | } else { | |
5309 | /* otherwise assume cdclk is fixed */ | |
5310 | dev_priv->max_cdclk_freq = dev_priv->cdclk_freq; | |
5311 | } | |
5312 | ||
adafdc6f MK |
5313 | dev_priv->max_dotclk_freq = intel_compute_max_dotclk(dev_priv); |
5314 | ||
560a7ae4 DL |
5315 | DRM_DEBUG_DRIVER("Max CD clock rate: %d kHz\n", |
5316 | dev_priv->max_cdclk_freq); | |
adafdc6f MK |
5317 | |
5318 | DRM_DEBUG_DRIVER("Max dotclock rate: %d kHz\n", | |
5319 | dev_priv->max_dotclk_freq); | |
560a7ae4 DL |
5320 | } |
5321 | ||
5322 | static void intel_update_cdclk(struct drm_device *dev) | |
5323 | { | |
5324 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5325 | ||
5326 | dev_priv->cdclk_freq = dev_priv->display.get_display_clock_speed(dev); | |
5327 | DRM_DEBUG_DRIVER("Current CD clock rate: %d kHz\n", | |
5328 | dev_priv->cdclk_freq); | |
5329 | ||
5330 | /* | |
5331 | * Program the gmbus_freq based on the cdclk frequency. | |
5332 | * BSpec erroneously claims we should aim for 4MHz, but | |
5333 | * in fact 1MHz is the correct frequency. | |
5334 | */ | |
666a4537 | 5335 | if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { |
560a7ae4 DL |
5336 | /* |
5337 | * Program the gmbus_freq based on the cdclk frequency. | |
5338 | * BSpec erroneously claims we should aim for 4MHz, but | |
5339 | * in fact 1MHz is the correct frequency. | |
5340 | */ | |
5341 | I915_WRITE(GMBUSFREQ_VLV, DIV_ROUND_UP(dev_priv->cdclk_freq, 1000)); | |
5342 | } | |
5343 | ||
5344 | if (dev_priv->max_cdclk_freq == 0) | |
5345 | intel_update_max_cdclk(dev); | |
5346 | } | |
5347 | ||
c6c4696f | 5348 | static void broxton_set_cdclk(struct drm_i915_private *dev_priv, int frequency) |
f8437dd1 | 5349 | { |
f8437dd1 VK |
5350 | uint32_t divider; |
5351 | uint32_t ratio; | |
5352 | uint32_t current_freq; | |
5353 | int ret; | |
5354 | ||
5355 | /* frequency = 19.2MHz * ratio / 2 / div{1,1.5,2,4} */ | |
5356 | switch (frequency) { | |
5357 | case 144000: | |
5358 | divider = BXT_CDCLK_CD2X_DIV_SEL_4; | |
5359 | ratio = BXT_DE_PLL_RATIO(60); | |
5360 | break; | |
5361 | case 288000: | |
5362 | divider = BXT_CDCLK_CD2X_DIV_SEL_2; | |
5363 | ratio = BXT_DE_PLL_RATIO(60); | |
5364 | break; | |
5365 | case 384000: | |
5366 | divider = BXT_CDCLK_CD2X_DIV_SEL_1_5; | |
5367 | ratio = BXT_DE_PLL_RATIO(60); | |
5368 | break; | |
5369 | case 576000: | |
5370 | divider = BXT_CDCLK_CD2X_DIV_SEL_1; | |
5371 | ratio = BXT_DE_PLL_RATIO(60); | |
5372 | break; | |
5373 | case 624000: | |
5374 | divider = BXT_CDCLK_CD2X_DIV_SEL_1; | |
5375 | ratio = BXT_DE_PLL_RATIO(65); | |
5376 | break; | |
5377 | case 19200: | |
5378 | /* | |
5379 | * Bypass frequency with DE PLL disabled. Init ratio, divider | |
5380 | * to suppress GCC warning. | |
5381 | */ | |
5382 | ratio = 0; | |
5383 | divider = 0; | |
5384 | break; | |
5385 | default: | |
5386 | DRM_ERROR("unsupported CDCLK freq %d", frequency); | |
5387 | ||
5388 | return; | |
5389 | } | |
5390 | ||
5391 | mutex_lock(&dev_priv->rps.hw_lock); | |
5392 | /* Inform power controller of upcoming frequency change */ | |
5393 | ret = sandybridge_pcode_write(dev_priv, HSW_PCODE_DE_WRITE_FREQ_REQ, | |
5394 | 0x80000000); | |
5395 | mutex_unlock(&dev_priv->rps.hw_lock); | |
5396 | ||
5397 | if (ret) { | |
5398 | DRM_ERROR("PCode CDCLK freq change notify failed (err %d, freq %d)\n", | |
5399 | ret, frequency); | |
5400 | return; | |
5401 | } | |
5402 | ||
5403 | current_freq = I915_READ(CDCLK_CTL) & CDCLK_FREQ_DECIMAL_MASK; | |
5404 | /* convert from .1 fixpoint MHz with -1MHz offset to kHz */ | |
5405 | current_freq = current_freq * 500 + 1000; | |
5406 | ||
5407 | /* | |
5408 | * DE PLL has to be disabled when | |
5409 | * - setting to 19.2MHz (bypass, PLL isn't used) | |
5410 | * - before setting to 624MHz (PLL needs toggling) | |
5411 | * - before setting to any frequency from 624MHz (PLL needs toggling) | |
5412 | */ | |
5413 | if (frequency == 19200 || frequency == 624000 || | |
5414 | current_freq == 624000) { | |
5415 | I915_WRITE(BXT_DE_PLL_ENABLE, ~BXT_DE_PLL_PLL_ENABLE); | |
5416 | /* Timeout 200us */ | |
5417 | if (wait_for(!(I915_READ(BXT_DE_PLL_ENABLE) & BXT_DE_PLL_LOCK), | |
5418 | 1)) | |
5419 | DRM_ERROR("timout waiting for DE PLL unlock\n"); | |
5420 | } | |
5421 | ||
5422 | if (frequency != 19200) { | |
5423 | uint32_t val; | |
5424 | ||
5425 | val = I915_READ(BXT_DE_PLL_CTL); | |
5426 | val &= ~BXT_DE_PLL_RATIO_MASK; | |
5427 | val |= ratio; | |
5428 | I915_WRITE(BXT_DE_PLL_CTL, val); | |
5429 | ||
5430 | I915_WRITE(BXT_DE_PLL_ENABLE, BXT_DE_PLL_PLL_ENABLE); | |
5431 | /* Timeout 200us */ | |
5432 | if (wait_for(I915_READ(BXT_DE_PLL_ENABLE) & BXT_DE_PLL_LOCK, 1)) | |
5433 | DRM_ERROR("timeout waiting for DE PLL lock\n"); | |
5434 | ||
5435 | val = I915_READ(CDCLK_CTL); | |
5436 | val &= ~BXT_CDCLK_CD2X_DIV_SEL_MASK; | |
5437 | val |= divider; | |
5438 | /* | |
5439 | * Disable SSA Precharge when CD clock frequency < 500 MHz, | |
5440 | * enable otherwise. | |
5441 | */ | |
5442 | val &= ~BXT_CDCLK_SSA_PRECHARGE_ENABLE; | |
5443 | if (frequency >= 500000) | |
5444 | val |= BXT_CDCLK_SSA_PRECHARGE_ENABLE; | |
5445 | ||
5446 | val &= ~CDCLK_FREQ_DECIMAL_MASK; | |
5447 | /* convert from kHz to .1 fixpoint MHz with -1MHz offset */ | |
5448 | val |= (frequency - 1000) / 500; | |
5449 | I915_WRITE(CDCLK_CTL, val); | |
5450 | } | |
5451 | ||
5452 | mutex_lock(&dev_priv->rps.hw_lock); | |
5453 | ret = sandybridge_pcode_write(dev_priv, HSW_PCODE_DE_WRITE_FREQ_REQ, | |
5454 | DIV_ROUND_UP(frequency, 25000)); | |
5455 | mutex_unlock(&dev_priv->rps.hw_lock); | |
5456 | ||
5457 | if (ret) { | |
5458 | DRM_ERROR("PCode CDCLK freq set failed, (err %d, freq %d)\n", | |
5459 | ret, frequency); | |
5460 | return; | |
5461 | } | |
5462 | ||
c6c4696f | 5463 | intel_update_cdclk(dev_priv->dev); |
f8437dd1 VK |
5464 | } |
5465 | ||
c2e001ef | 5466 | static bool broxton_cdclk_is_enabled(struct drm_i915_private *dev_priv) |
f8437dd1 | 5467 | { |
c2e001ef ID |
5468 | if (!(I915_READ(BXT_DE_PLL_ENABLE) & BXT_DE_PLL_PLL_ENABLE)) |
5469 | return false; | |
f8437dd1 | 5470 | |
c2e001ef | 5471 | /* TODO: Check for a valid CDCLK rate */ |
f8437dd1 | 5472 | |
c2e001ef ID |
5473 | if (!(I915_READ(DBUF_CTL) & DBUF_POWER_REQUEST)) { |
5474 | DRM_DEBUG_DRIVER("CDCLK enabled, but DBUF power not requested\n"); | |
5475 | ||
5476 | return false; | |
5477 | } | |
5478 | ||
5479 | if (!(I915_READ(DBUF_CTL) & DBUF_POWER_STATE)) { | |
5480 | DRM_DEBUG_DRIVER("CDCLK enabled, but DBUF power hasn't settled\n"); | |
5481 | ||
5482 | return false; | |
5483 | } | |
5484 | ||
5485 | return true; | |
5486 | } | |
5487 | ||
adc7f04b ID |
5488 | bool broxton_cdclk_verify_state(struct drm_i915_private *dev_priv) |
5489 | { | |
5490 | return broxton_cdclk_is_enabled(dev_priv); | |
5491 | } | |
f8437dd1 | 5492 | |
c6c4696f | 5493 | void broxton_init_cdclk(struct drm_i915_private *dev_priv) |
f8437dd1 | 5494 | { |
f8437dd1 | 5495 | /* check if cd clock is enabled */ |
c2e001ef ID |
5496 | if (broxton_cdclk_is_enabled(dev_priv)) { |
5497 | DRM_DEBUG_KMS("CDCLK already enabled, won't reprogram it\n"); | |
f8437dd1 VK |
5498 | return; |
5499 | } | |
5500 | ||
c2e001ef ID |
5501 | DRM_DEBUG_KMS("CDCLK not enabled, enabling it\n"); |
5502 | ||
f8437dd1 VK |
5503 | /* |
5504 | * FIXME: | |
5505 | * - The initial CDCLK needs to be read from VBT. | |
5506 | * Need to make this change after VBT has changes for BXT. | |
5507 | * - check if setting the max (or any) cdclk freq is really necessary | |
5508 | * here, it belongs to modeset time | |
5509 | */ | |
c6c4696f | 5510 | broxton_set_cdclk(dev_priv, 624000); |
f8437dd1 VK |
5511 | |
5512 | I915_WRITE(DBUF_CTL, I915_READ(DBUF_CTL) | DBUF_POWER_REQUEST); | |
22e02c0b VS |
5513 | POSTING_READ(DBUF_CTL); |
5514 | ||
f8437dd1 VK |
5515 | udelay(10); |
5516 | ||
5517 | if (!(I915_READ(DBUF_CTL) & DBUF_POWER_STATE)) | |
5518 | DRM_ERROR("DBuf power enable timeout!\n"); | |
5519 | } | |
5520 | ||
c6c4696f | 5521 | void broxton_uninit_cdclk(struct drm_i915_private *dev_priv) |
f8437dd1 | 5522 | { |
f8437dd1 | 5523 | I915_WRITE(DBUF_CTL, I915_READ(DBUF_CTL) & ~DBUF_POWER_REQUEST); |
22e02c0b VS |
5524 | POSTING_READ(DBUF_CTL); |
5525 | ||
f8437dd1 VK |
5526 | udelay(10); |
5527 | ||
5528 | if (I915_READ(DBUF_CTL) & DBUF_POWER_STATE) | |
5529 | DRM_ERROR("DBuf power disable timeout!\n"); | |
5530 | ||
5531 | /* Set minimum (bypass) frequency, in effect turning off the DE PLL */ | |
c6c4696f | 5532 | broxton_set_cdclk(dev_priv, 19200); |
f8437dd1 VK |
5533 | } |
5534 | ||
5d96d8af DL |
5535 | static const struct skl_cdclk_entry { |
5536 | unsigned int freq; | |
5537 | unsigned int vco; | |
5538 | } skl_cdclk_frequencies[] = { | |
5539 | { .freq = 308570, .vco = 8640 }, | |
5540 | { .freq = 337500, .vco = 8100 }, | |
5541 | { .freq = 432000, .vco = 8640 }, | |
5542 | { .freq = 450000, .vco = 8100 }, | |
5543 | { .freq = 540000, .vco = 8100 }, | |
5544 | { .freq = 617140, .vco = 8640 }, | |
5545 | { .freq = 675000, .vco = 8100 }, | |
5546 | }; | |
5547 | ||
5548 | static unsigned int skl_cdclk_decimal(unsigned int freq) | |
5549 | { | |
5550 | return (freq - 1000) / 500; | |
5551 | } | |
5552 | ||
5553 | static unsigned int skl_cdclk_get_vco(unsigned int freq) | |
5554 | { | |
5555 | unsigned int i; | |
5556 | ||
5557 | for (i = 0; i < ARRAY_SIZE(skl_cdclk_frequencies); i++) { | |
5558 | const struct skl_cdclk_entry *e = &skl_cdclk_frequencies[i]; | |
5559 | ||
5560 | if (e->freq == freq) | |
5561 | return e->vco; | |
5562 | } | |
5563 | ||
5564 | return 8100; | |
5565 | } | |
5566 | ||
5567 | static void | |
5568 | skl_dpll0_enable(struct drm_i915_private *dev_priv, unsigned int required_vco) | |
5569 | { | |
5570 | unsigned int min_freq; | |
5571 | u32 val; | |
5572 | ||
5573 | /* select the minimum CDCLK before enabling DPLL 0 */ | |
5574 | val = I915_READ(CDCLK_CTL); | |
5575 | val &= ~CDCLK_FREQ_SEL_MASK | ~CDCLK_FREQ_DECIMAL_MASK; | |
5576 | val |= CDCLK_FREQ_337_308; | |
5577 | ||
5578 | if (required_vco == 8640) | |
5579 | min_freq = 308570; | |
5580 | else | |
5581 | min_freq = 337500; | |
5582 | ||
5583 | val = CDCLK_FREQ_337_308 | skl_cdclk_decimal(min_freq); | |
5584 | ||
5585 | I915_WRITE(CDCLK_CTL, val); | |
5586 | POSTING_READ(CDCLK_CTL); | |
5587 | ||
5588 | /* | |
5589 | * We always enable DPLL0 with the lowest link rate possible, but still | |
5590 | * taking into account the VCO required to operate the eDP panel at the | |
5591 | * desired frequency. The usual DP link rates operate with a VCO of | |
5592 | * 8100 while the eDP 1.4 alternate link rates need a VCO of 8640. | |
5593 | * The modeset code is responsible for the selection of the exact link | |
5594 | * rate later on, with the constraint of choosing a frequency that | |
5595 | * works with required_vco. | |
5596 | */ | |
5597 | val = I915_READ(DPLL_CTRL1); | |
5598 | ||
5599 | val &= ~(DPLL_CTRL1_HDMI_MODE(SKL_DPLL0) | DPLL_CTRL1_SSC(SKL_DPLL0) | | |
5600 | DPLL_CTRL1_LINK_RATE_MASK(SKL_DPLL0)); | |
5601 | val |= DPLL_CTRL1_OVERRIDE(SKL_DPLL0); | |
5602 | if (required_vco == 8640) | |
5603 | val |= DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_1080, | |
5604 | SKL_DPLL0); | |
5605 | else | |
5606 | val |= DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_810, | |
5607 | SKL_DPLL0); | |
5608 | ||
5609 | I915_WRITE(DPLL_CTRL1, val); | |
5610 | POSTING_READ(DPLL_CTRL1); | |
5611 | ||
5612 | I915_WRITE(LCPLL1_CTL, I915_READ(LCPLL1_CTL) | LCPLL_PLL_ENABLE); | |
5613 | ||
5614 | if (wait_for(I915_READ(LCPLL1_CTL) & LCPLL_PLL_LOCK, 5)) | |
5615 | DRM_ERROR("DPLL0 not locked\n"); | |
5616 | } | |
5617 | ||
5618 | static bool skl_cdclk_pcu_ready(struct drm_i915_private *dev_priv) | |
5619 | { | |
5620 | int ret; | |
5621 | u32 val; | |
5622 | ||
5623 | /* inform PCU we want to change CDCLK */ | |
5624 | val = SKL_CDCLK_PREPARE_FOR_CHANGE; | |
5625 | mutex_lock(&dev_priv->rps.hw_lock); | |
5626 | ret = sandybridge_pcode_read(dev_priv, SKL_PCODE_CDCLK_CONTROL, &val); | |
5627 | mutex_unlock(&dev_priv->rps.hw_lock); | |
5628 | ||
5629 | return ret == 0 && (val & SKL_CDCLK_READY_FOR_CHANGE); | |
5630 | } | |
5631 | ||
5632 | static bool skl_cdclk_wait_for_pcu_ready(struct drm_i915_private *dev_priv) | |
5633 | { | |
5634 | unsigned int i; | |
5635 | ||
5636 | for (i = 0; i < 15; i++) { | |
5637 | if (skl_cdclk_pcu_ready(dev_priv)) | |
5638 | return true; | |
5639 | udelay(10); | |
5640 | } | |
5641 | ||
5642 | return false; | |
5643 | } | |
5644 | ||
5645 | static void skl_set_cdclk(struct drm_i915_private *dev_priv, unsigned int freq) | |
5646 | { | |
560a7ae4 | 5647 | struct drm_device *dev = dev_priv->dev; |
5d96d8af DL |
5648 | u32 freq_select, pcu_ack; |
5649 | ||
5650 | DRM_DEBUG_DRIVER("Changing CDCLK to %dKHz\n", freq); | |
5651 | ||
5652 | if (!skl_cdclk_wait_for_pcu_ready(dev_priv)) { | |
5653 | DRM_ERROR("failed to inform PCU about cdclk change\n"); | |
5654 | return; | |
5655 | } | |
5656 | ||
5657 | /* set CDCLK_CTL */ | |
5658 | switch(freq) { | |
5659 | case 450000: | |
5660 | case 432000: | |
5661 | freq_select = CDCLK_FREQ_450_432; | |
5662 | pcu_ack = 1; | |
5663 | break; | |
5664 | case 540000: | |
5665 | freq_select = CDCLK_FREQ_540; | |
5666 | pcu_ack = 2; | |
5667 | break; | |
5668 | case 308570: | |
5669 | case 337500: | |
5670 | default: | |
5671 | freq_select = CDCLK_FREQ_337_308; | |
5672 | pcu_ack = 0; | |
5673 | break; | |
5674 | case 617140: | |
5675 | case 675000: | |
5676 | freq_select = CDCLK_FREQ_675_617; | |
5677 | pcu_ack = 3; | |
5678 | break; | |
5679 | } | |
5680 | ||
5681 | I915_WRITE(CDCLK_CTL, freq_select | skl_cdclk_decimal(freq)); | |
5682 | POSTING_READ(CDCLK_CTL); | |
5683 | ||
5684 | /* inform PCU of the change */ | |
5685 | mutex_lock(&dev_priv->rps.hw_lock); | |
5686 | sandybridge_pcode_write(dev_priv, SKL_PCODE_CDCLK_CONTROL, pcu_ack); | |
5687 | mutex_unlock(&dev_priv->rps.hw_lock); | |
560a7ae4 DL |
5688 | |
5689 | intel_update_cdclk(dev); | |
5d96d8af DL |
5690 | } |
5691 | ||
5692 | void skl_uninit_cdclk(struct drm_i915_private *dev_priv) | |
5693 | { | |
5694 | /* disable DBUF power */ | |
5695 | I915_WRITE(DBUF_CTL, I915_READ(DBUF_CTL) & ~DBUF_POWER_REQUEST); | |
5696 | POSTING_READ(DBUF_CTL); | |
5697 | ||
5698 | udelay(10); | |
5699 | ||
5700 | if (I915_READ(DBUF_CTL) & DBUF_POWER_STATE) | |
5701 | DRM_ERROR("DBuf power disable timeout\n"); | |
5702 | ||
ab96c1ee ID |
5703 | /* disable DPLL0 */ |
5704 | I915_WRITE(LCPLL1_CTL, I915_READ(LCPLL1_CTL) & ~LCPLL_PLL_ENABLE); | |
5705 | if (wait_for(!(I915_READ(LCPLL1_CTL) & LCPLL_PLL_LOCK), 1)) | |
5706 | DRM_ERROR("Couldn't disable DPLL0\n"); | |
5d96d8af DL |
5707 | } |
5708 | ||
5709 | void skl_init_cdclk(struct drm_i915_private *dev_priv) | |
5710 | { | |
5d96d8af DL |
5711 | unsigned int required_vco; |
5712 | ||
39d9b85a GW |
5713 | /* DPLL0 not enabled (happens on early BIOS versions) */ |
5714 | if (!(I915_READ(LCPLL1_CTL) & LCPLL_PLL_ENABLE)) { | |
5715 | /* enable DPLL0 */ | |
5716 | required_vco = skl_cdclk_get_vco(dev_priv->skl_boot_cdclk); | |
5717 | skl_dpll0_enable(dev_priv, required_vco); | |
5d96d8af DL |
5718 | } |
5719 | ||
5d96d8af DL |
5720 | /* set CDCLK to the frequency the BIOS chose */ |
5721 | skl_set_cdclk(dev_priv, dev_priv->skl_boot_cdclk); | |
5722 | ||
5723 | /* enable DBUF power */ | |
5724 | I915_WRITE(DBUF_CTL, I915_READ(DBUF_CTL) | DBUF_POWER_REQUEST); | |
5725 | POSTING_READ(DBUF_CTL); | |
5726 | ||
5727 | udelay(10); | |
5728 | ||
5729 | if (!(I915_READ(DBUF_CTL) & DBUF_POWER_STATE)) | |
5730 | DRM_ERROR("DBuf power enable timeout\n"); | |
5731 | } | |
5732 | ||
c73666f3 SK |
5733 | int skl_sanitize_cdclk(struct drm_i915_private *dev_priv) |
5734 | { | |
5735 | uint32_t lcpll1 = I915_READ(LCPLL1_CTL); | |
5736 | uint32_t cdctl = I915_READ(CDCLK_CTL); | |
5737 | int freq = dev_priv->skl_boot_cdclk; | |
5738 | ||
f1b391a5 SK |
5739 | /* |
5740 | * check if the pre-os intialized the display | |
5741 | * There is SWF18 scratchpad register defined which is set by the | |
5742 | * pre-os which can be used by the OS drivers to check the status | |
5743 | */ | |
5744 | if ((I915_READ(SWF_ILK(0x18)) & 0x00FFFFFF) == 0) | |
5745 | goto sanitize; | |
5746 | ||
c73666f3 SK |
5747 | /* Is PLL enabled and locked ? */ |
5748 | if (!((lcpll1 & LCPLL_PLL_ENABLE) && (lcpll1 & LCPLL_PLL_LOCK))) | |
5749 | goto sanitize; | |
5750 | ||
5751 | /* DPLL okay; verify the cdclock | |
5752 | * | |
5753 | * Noticed in some instances that the freq selection is correct but | |
5754 | * decimal part is programmed wrong from BIOS where pre-os does not | |
5755 | * enable display. Verify the same as well. | |
5756 | */ | |
5757 | if (cdctl == ((cdctl & CDCLK_FREQ_SEL_MASK) | skl_cdclk_decimal(freq))) | |
5758 | /* All well; nothing to sanitize */ | |
5759 | return false; | |
5760 | sanitize: | |
5761 | /* | |
5762 | * As of now initialize with max cdclk till | |
5763 | * we get dynamic cdclk support | |
5764 | * */ | |
5765 | dev_priv->skl_boot_cdclk = dev_priv->max_cdclk_freq; | |
5766 | skl_init_cdclk(dev_priv); | |
5767 | ||
5768 | /* we did have to sanitize */ | |
5769 | return true; | |
5770 | } | |
5771 | ||
30a970c6 JB |
5772 | /* Adjust CDclk dividers to allow high res or save power if possible */ |
5773 | static void valleyview_set_cdclk(struct drm_device *dev, int cdclk) | |
5774 | { | |
5775 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5776 | u32 val, cmd; | |
5777 | ||
164dfd28 VK |
5778 | WARN_ON(dev_priv->display.get_display_clock_speed(dev) |
5779 | != dev_priv->cdclk_freq); | |
d60c4473 | 5780 | |
dfcab17e | 5781 | if (cdclk >= 320000) /* jump to highest voltage for 400MHz too */ |
30a970c6 | 5782 | cmd = 2; |
dfcab17e | 5783 | else if (cdclk == 266667) |
30a970c6 JB |
5784 | cmd = 1; |
5785 | else | |
5786 | cmd = 0; | |
5787 | ||
5788 | mutex_lock(&dev_priv->rps.hw_lock); | |
5789 | val = vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ); | |
5790 | val &= ~DSPFREQGUAR_MASK; | |
5791 | val |= (cmd << DSPFREQGUAR_SHIFT); | |
5792 | vlv_punit_write(dev_priv, PUNIT_REG_DSPFREQ, val); | |
5793 | if (wait_for((vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ) & | |
5794 | DSPFREQSTAT_MASK) == (cmd << DSPFREQSTAT_SHIFT), | |
5795 | 50)) { | |
5796 | DRM_ERROR("timed out waiting for CDclk change\n"); | |
5797 | } | |
5798 | mutex_unlock(&dev_priv->rps.hw_lock); | |
5799 | ||
54433e91 VS |
5800 | mutex_lock(&dev_priv->sb_lock); |
5801 | ||
dfcab17e | 5802 | if (cdclk == 400000) { |
6bcda4f0 | 5803 | u32 divider; |
30a970c6 | 5804 | |
6bcda4f0 | 5805 | divider = DIV_ROUND_CLOSEST(dev_priv->hpll_freq << 1, cdclk) - 1; |
30a970c6 | 5806 | |
30a970c6 JB |
5807 | /* adjust cdclk divider */ |
5808 | val = vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL); | |
87d5d259 | 5809 | val &= ~CCK_FREQUENCY_VALUES; |
30a970c6 JB |
5810 | val |= divider; |
5811 | vlv_cck_write(dev_priv, CCK_DISPLAY_CLOCK_CONTROL, val); | |
a877e801 VS |
5812 | |
5813 | if (wait_for((vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL) & | |
87d5d259 | 5814 | CCK_FREQUENCY_STATUS) == (divider << CCK_FREQUENCY_STATUS_SHIFT), |
a877e801 VS |
5815 | 50)) |
5816 | DRM_ERROR("timed out waiting for CDclk change\n"); | |
30a970c6 JB |
5817 | } |
5818 | ||
30a970c6 JB |
5819 | /* adjust self-refresh exit latency value */ |
5820 | val = vlv_bunit_read(dev_priv, BUNIT_REG_BISOC); | |
5821 | val &= ~0x7f; | |
5822 | ||
5823 | /* | |
5824 | * For high bandwidth configs, we set a higher latency in the bunit | |
5825 | * so that the core display fetch happens in time to avoid underruns. | |
5826 | */ | |
dfcab17e | 5827 | if (cdclk == 400000) |
30a970c6 JB |
5828 | val |= 4500 / 250; /* 4.5 usec */ |
5829 | else | |
5830 | val |= 3000 / 250; /* 3.0 usec */ | |
5831 | vlv_bunit_write(dev_priv, BUNIT_REG_BISOC, val); | |
54433e91 | 5832 | |
a580516d | 5833 | mutex_unlock(&dev_priv->sb_lock); |
30a970c6 | 5834 | |
b6283055 | 5835 | intel_update_cdclk(dev); |
30a970c6 JB |
5836 | } |
5837 | ||
383c5a6a VS |
5838 | static void cherryview_set_cdclk(struct drm_device *dev, int cdclk) |
5839 | { | |
5840 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5841 | u32 val, cmd; | |
5842 | ||
164dfd28 VK |
5843 | WARN_ON(dev_priv->display.get_display_clock_speed(dev) |
5844 | != dev_priv->cdclk_freq); | |
383c5a6a VS |
5845 | |
5846 | switch (cdclk) { | |
383c5a6a VS |
5847 | case 333333: |
5848 | case 320000: | |
383c5a6a | 5849 | case 266667: |
383c5a6a | 5850 | case 200000: |
383c5a6a VS |
5851 | break; |
5852 | default: | |
5f77eeb0 | 5853 | MISSING_CASE(cdclk); |
383c5a6a VS |
5854 | return; |
5855 | } | |
5856 | ||
9d0d3fda VS |
5857 | /* |
5858 | * Specs are full of misinformation, but testing on actual | |
5859 | * hardware has shown that we just need to write the desired | |
5860 | * CCK divider into the Punit register. | |
5861 | */ | |
5862 | cmd = DIV_ROUND_CLOSEST(dev_priv->hpll_freq << 1, cdclk) - 1; | |
5863 | ||
383c5a6a VS |
5864 | mutex_lock(&dev_priv->rps.hw_lock); |
5865 | val = vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ); | |
5866 | val &= ~DSPFREQGUAR_MASK_CHV; | |
5867 | val |= (cmd << DSPFREQGUAR_SHIFT_CHV); | |
5868 | vlv_punit_write(dev_priv, PUNIT_REG_DSPFREQ, val); | |
5869 | if (wait_for((vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ) & | |
5870 | DSPFREQSTAT_MASK_CHV) == (cmd << DSPFREQSTAT_SHIFT_CHV), | |
5871 | 50)) { | |
5872 | DRM_ERROR("timed out waiting for CDclk change\n"); | |
5873 | } | |
5874 | mutex_unlock(&dev_priv->rps.hw_lock); | |
5875 | ||
b6283055 | 5876 | intel_update_cdclk(dev); |
383c5a6a VS |
5877 | } |
5878 | ||
30a970c6 JB |
5879 | static int valleyview_calc_cdclk(struct drm_i915_private *dev_priv, |
5880 | int max_pixclk) | |
5881 | { | |
6bcda4f0 | 5882 | int freq_320 = (dev_priv->hpll_freq << 1) % 320000 != 0 ? 333333 : 320000; |
6cca3195 | 5883 | int limit = IS_CHERRYVIEW(dev_priv) ? 95 : 90; |
29dc7ef3 | 5884 | |
30a970c6 JB |
5885 | /* |
5886 | * Really only a few cases to deal with, as only 4 CDclks are supported: | |
5887 | * 200MHz | |
5888 | * 267MHz | |
29dc7ef3 | 5889 | * 320/333MHz (depends on HPLL freq) |
6cca3195 VS |
5890 | * 400MHz (VLV only) |
5891 | * So we check to see whether we're above 90% (VLV) or 95% (CHV) | |
5892 | * of the lower bin and adjust if needed. | |
e37c67a1 VS |
5893 | * |
5894 | * We seem to get an unstable or solid color picture at 200MHz. | |
5895 | * Not sure what's wrong. For now use 200MHz only when all pipes | |
5896 | * are off. | |
30a970c6 | 5897 | */ |
6cca3195 VS |
5898 | if (!IS_CHERRYVIEW(dev_priv) && |
5899 | max_pixclk > freq_320*limit/100) | |
dfcab17e | 5900 | return 400000; |
6cca3195 | 5901 | else if (max_pixclk > 266667*limit/100) |
29dc7ef3 | 5902 | return freq_320; |
e37c67a1 | 5903 | else if (max_pixclk > 0) |
dfcab17e | 5904 | return 266667; |
e37c67a1 VS |
5905 | else |
5906 | return 200000; | |
30a970c6 JB |
5907 | } |
5908 | ||
f8437dd1 VK |
5909 | static int broxton_calc_cdclk(struct drm_i915_private *dev_priv, |
5910 | int max_pixclk) | |
5911 | { | |
5912 | /* | |
5913 | * FIXME: | |
5914 | * - remove the guardband, it's not needed on BXT | |
5915 | * - set 19.2MHz bypass frequency if there are no active pipes | |
5916 | */ | |
5917 | if (max_pixclk > 576000*9/10) | |
5918 | return 624000; | |
5919 | else if (max_pixclk > 384000*9/10) | |
5920 | return 576000; | |
5921 | else if (max_pixclk > 288000*9/10) | |
5922 | return 384000; | |
5923 | else if (max_pixclk > 144000*9/10) | |
5924 | return 288000; | |
5925 | else | |
5926 | return 144000; | |
5927 | } | |
5928 | ||
e8788cbc | 5929 | /* Compute the max pixel clock for new configuration. */ |
a821fc46 ACO |
5930 | static int intel_mode_max_pixclk(struct drm_device *dev, |
5931 | struct drm_atomic_state *state) | |
30a970c6 | 5932 | { |
565602d7 ML |
5933 | struct intel_atomic_state *intel_state = to_intel_atomic_state(state); |
5934 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5935 | struct drm_crtc *crtc; | |
5936 | struct drm_crtc_state *crtc_state; | |
5937 | unsigned max_pixclk = 0, i; | |
5938 | enum pipe pipe; | |
30a970c6 | 5939 | |
565602d7 ML |
5940 | memcpy(intel_state->min_pixclk, dev_priv->min_pixclk, |
5941 | sizeof(intel_state->min_pixclk)); | |
304603f4 | 5942 | |
565602d7 ML |
5943 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
5944 | int pixclk = 0; | |
5945 | ||
5946 | if (crtc_state->enable) | |
5947 | pixclk = crtc_state->adjusted_mode.crtc_clock; | |
304603f4 | 5948 | |
565602d7 | 5949 | intel_state->min_pixclk[i] = pixclk; |
30a970c6 JB |
5950 | } |
5951 | ||
565602d7 ML |
5952 | for_each_pipe(dev_priv, pipe) |
5953 | max_pixclk = max(intel_state->min_pixclk[pipe], max_pixclk); | |
5954 | ||
30a970c6 JB |
5955 | return max_pixclk; |
5956 | } | |
5957 | ||
27c329ed | 5958 | static int valleyview_modeset_calc_cdclk(struct drm_atomic_state *state) |
30a970c6 | 5959 | { |
27c329ed ML |
5960 | struct drm_device *dev = state->dev; |
5961 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5962 | int max_pixclk = intel_mode_max_pixclk(dev, state); | |
1a617b77 ML |
5963 | struct intel_atomic_state *intel_state = |
5964 | to_intel_atomic_state(state); | |
30a970c6 | 5965 | |
304603f4 ACO |
5966 | if (max_pixclk < 0) |
5967 | return max_pixclk; | |
30a970c6 | 5968 | |
1a617b77 | 5969 | intel_state->cdclk = intel_state->dev_cdclk = |
27c329ed | 5970 | valleyview_calc_cdclk(dev_priv, max_pixclk); |
0a9ab303 | 5971 | |
1a617b77 ML |
5972 | if (!intel_state->active_crtcs) |
5973 | intel_state->dev_cdclk = valleyview_calc_cdclk(dev_priv, 0); | |
5974 | ||
27c329ed ML |
5975 | return 0; |
5976 | } | |
304603f4 | 5977 | |
27c329ed ML |
5978 | static int broxton_modeset_calc_cdclk(struct drm_atomic_state *state) |
5979 | { | |
5980 | struct drm_device *dev = state->dev; | |
5981 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5982 | int max_pixclk = intel_mode_max_pixclk(dev, state); | |
1a617b77 ML |
5983 | struct intel_atomic_state *intel_state = |
5984 | to_intel_atomic_state(state); | |
85a96e7a | 5985 | |
27c329ed ML |
5986 | if (max_pixclk < 0) |
5987 | return max_pixclk; | |
85a96e7a | 5988 | |
1a617b77 | 5989 | intel_state->cdclk = intel_state->dev_cdclk = |
27c329ed | 5990 | broxton_calc_cdclk(dev_priv, max_pixclk); |
85a96e7a | 5991 | |
1a617b77 ML |
5992 | if (!intel_state->active_crtcs) |
5993 | intel_state->dev_cdclk = broxton_calc_cdclk(dev_priv, 0); | |
5994 | ||
27c329ed | 5995 | return 0; |
30a970c6 JB |
5996 | } |
5997 | ||
1e69cd74 VS |
5998 | static void vlv_program_pfi_credits(struct drm_i915_private *dev_priv) |
5999 | { | |
6000 | unsigned int credits, default_credits; | |
6001 | ||
6002 | if (IS_CHERRYVIEW(dev_priv)) | |
6003 | default_credits = PFI_CREDIT(12); | |
6004 | else | |
6005 | default_credits = PFI_CREDIT(8); | |
6006 | ||
bfa7df01 | 6007 | if (dev_priv->cdclk_freq >= dev_priv->czclk_freq) { |
1e69cd74 VS |
6008 | /* CHV suggested value is 31 or 63 */ |
6009 | if (IS_CHERRYVIEW(dev_priv)) | |
fcc0008f | 6010 | credits = PFI_CREDIT_63; |
1e69cd74 VS |
6011 | else |
6012 | credits = PFI_CREDIT(15); | |
6013 | } else { | |
6014 | credits = default_credits; | |
6015 | } | |
6016 | ||
6017 | /* | |
6018 | * WA - write default credits before re-programming | |
6019 | * FIXME: should we also set the resend bit here? | |
6020 | */ | |
6021 | I915_WRITE(GCI_CONTROL, VGA_FAST_MODE_DISABLE | | |
6022 | default_credits); | |
6023 | ||
6024 | I915_WRITE(GCI_CONTROL, VGA_FAST_MODE_DISABLE | | |
6025 | credits | PFI_CREDIT_RESEND); | |
6026 | ||
6027 | /* | |
6028 | * FIXME is this guaranteed to clear | |
6029 | * immediately or should we poll for it? | |
6030 | */ | |
6031 | WARN_ON(I915_READ(GCI_CONTROL) & PFI_CREDIT_RESEND); | |
6032 | } | |
6033 | ||
27c329ed | 6034 | static void valleyview_modeset_commit_cdclk(struct drm_atomic_state *old_state) |
30a970c6 | 6035 | { |
a821fc46 | 6036 | struct drm_device *dev = old_state->dev; |
30a970c6 | 6037 | struct drm_i915_private *dev_priv = dev->dev_private; |
1a617b77 ML |
6038 | struct intel_atomic_state *old_intel_state = |
6039 | to_intel_atomic_state(old_state); | |
6040 | unsigned req_cdclk = old_intel_state->dev_cdclk; | |
30a970c6 | 6041 | |
27c329ed ML |
6042 | /* |
6043 | * FIXME: We can end up here with all power domains off, yet | |
6044 | * with a CDCLK frequency other than the minimum. To account | |
6045 | * for this take the PIPE-A power domain, which covers the HW | |
6046 | * blocks needed for the following programming. This can be | |
6047 | * removed once it's guaranteed that we get here either with | |
6048 | * the minimum CDCLK set, or the required power domains | |
6049 | * enabled. | |
6050 | */ | |
6051 | intel_display_power_get(dev_priv, POWER_DOMAIN_PIPE_A); | |
738c05c0 | 6052 | |
27c329ed ML |
6053 | if (IS_CHERRYVIEW(dev)) |
6054 | cherryview_set_cdclk(dev, req_cdclk); | |
6055 | else | |
6056 | valleyview_set_cdclk(dev, req_cdclk); | |
738c05c0 | 6057 | |
27c329ed | 6058 | vlv_program_pfi_credits(dev_priv); |
1e69cd74 | 6059 | |
27c329ed | 6060 | intel_display_power_put(dev_priv, POWER_DOMAIN_PIPE_A); |
30a970c6 JB |
6061 | } |
6062 | ||
89b667f8 JB |
6063 | static void valleyview_crtc_enable(struct drm_crtc *crtc) |
6064 | { | |
6065 | struct drm_device *dev = crtc->dev; | |
a72e4c9f | 6066 | struct drm_i915_private *dev_priv = to_i915(dev); |
89b667f8 JB |
6067 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6068 | struct intel_encoder *encoder; | |
b95c5321 ML |
6069 | struct intel_crtc_state *pipe_config = |
6070 | to_intel_crtc_state(crtc->state); | |
89b667f8 | 6071 | int pipe = intel_crtc->pipe; |
89b667f8 | 6072 | |
53d9f4e9 | 6073 | if (WARN_ON(intel_crtc->active)) |
89b667f8 JB |
6074 | return; |
6075 | ||
6e3c9717 | 6076 | if (intel_crtc->config->has_dp_encoder) |
fe3cd48d | 6077 | intel_dp_set_m_n(intel_crtc, M1_N1); |
5b18e57c DV |
6078 | |
6079 | intel_set_pipe_timings(intel_crtc); | |
bc58be60 | 6080 | intel_set_pipe_src_size(intel_crtc); |
5b18e57c | 6081 | |
c14b0485 VS |
6082 | if (IS_CHERRYVIEW(dev) && pipe == PIPE_B) { |
6083 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6084 | ||
6085 | I915_WRITE(CHV_BLEND(pipe), CHV_BLEND_LEGACY); | |
6086 | I915_WRITE(CHV_CANVAS(pipe), 0); | |
6087 | } | |
6088 | ||
5b18e57c DV |
6089 | i9xx_set_pipeconf(intel_crtc); |
6090 | ||
89b667f8 | 6091 | intel_crtc->active = true; |
89b667f8 | 6092 | |
a72e4c9f | 6093 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
4a3436e8 | 6094 | |
89b667f8 JB |
6095 | for_each_encoder_on_crtc(dev, crtc, encoder) |
6096 | if (encoder->pre_pll_enable) | |
6097 | encoder->pre_pll_enable(encoder); | |
6098 | ||
cd2d34d9 VS |
6099 | if (IS_CHERRYVIEW(dev)) { |
6100 | chv_prepare_pll(intel_crtc, intel_crtc->config); | |
6101 | chv_enable_pll(intel_crtc, intel_crtc->config); | |
6102 | } else { | |
6103 | vlv_prepare_pll(intel_crtc, intel_crtc->config); | |
6104 | vlv_enable_pll(intel_crtc, intel_crtc->config); | |
9d556c99 | 6105 | } |
89b667f8 JB |
6106 | |
6107 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
6108 | if (encoder->pre_enable) | |
6109 | encoder->pre_enable(encoder); | |
6110 | ||
2dd24552 JB |
6111 | i9xx_pfit_enable(intel_crtc); |
6112 | ||
b95c5321 | 6113 | intel_color_load_luts(&pipe_config->base); |
63cbb074 | 6114 | |
caed361d | 6115 | intel_update_watermarks(crtc); |
e1fdc473 | 6116 | intel_enable_pipe(intel_crtc); |
be6a6f8e | 6117 | |
4b3a9526 VS |
6118 | assert_vblank_disabled(crtc); |
6119 | drm_crtc_vblank_on(crtc); | |
6120 | ||
f9b61ff6 DV |
6121 | for_each_encoder_on_crtc(dev, crtc, encoder) |
6122 | encoder->enable(encoder); | |
89b667f8 JB |
6123 | } |
6124 | ||
f13c2ef3 DV |
6125 | static void i9xx_set_pll_dividers(struct intel_crtc *crtc) |
6126 | { | |
6127 | struct drm_device *dev = crtc->base.dev; | |
6128 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6129 | ||
6e3c9717 ACO |
6130 | I915_WRITE(FP0(crtc->pipe), crtc->config->dpll_hw_state.fp0); |
6131 | I915_WRITE(FP1(crtc->pipe), crtc->config->dpll_hw_state.fp1); | |
f13c2ef3 DV |
6132 | } |
6133 | ||
0b8765c6 | 6134 | static void i9xx_crtc_enable(struct drm_crtc *crtc) |
79e53945 JB |
6135 | { |
6136 | struct drm_device *dev = crtc->dev; | |
a72e4c9f | 6137 | struct drm_i915_private *dev_priv = to_i915(dev); |
79e53945 | 6138 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
ef9c3aee | 6139 | struct intel_encoder *encoder; |
b95c5321 ML |
6140 | struct intel_crtc_state *pipe_config = |
6141 | to_intel_crtc_state(crtc->state); | |
cd2d34d9 | 6142 | enum pipe pipe = intel_crtc->pipe; |
79e53945 | 6143 | |
53d9f4e9 | 6144 | if (WARN_ON(intel_crtc->active)) |
f7abfe8b CW |
6145 | return; |
6146 | ||
f13c2ef3 DV |
6147 | i9xx_set_pll_dividers(intel_crtc); |
6148 | ||
6e3c9717 | 6149 | if (intel_crtc->config->has_dp_encoder) |
fe3cd48d | 6150 | intel_dp_set_m_n(intel_crtc, M1_N1); |
5b18e57c DV |
6151 | |
6152 | intel_set_pipe_timings(intel_crtc); | |
bc58be60 | 6153 | intel_set_pipe_src_size(intel_crtc); |
5b18e57c | 6154 | |
5b18e57c DV |
6155 | i9xx_set_pipeconf(intel_crtc); |
6156 | ||
f7abfe8b | 6157 | intel_crtc->active = true; |
6b383a7f | 6158 | |
4a3436e8 | 6159 | if (!IS_GEN2(dev)) |
a72e4c9f | 6160 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); |
4a3436e8 | 6161 | |
9d6d9f19 MK |
6162 | for_each_encoder_on_crtc(dev, crtc, encoder) |
6163 | if (encoder->pre_enable) | |
6164 | encoder->pre_enable(encoder); | |
6165 | ||
f6736a1a DV |
6166 | i9xx_enable_pll(intel_crtc); |
6167 | ||
2dd24552 JB |
6168 | i9xx_pfit_enable(intel_crtc); |
6169 | ||
b95c5321 | 6170 | intel_color_load_luts(&pipe_config->base); |
63cbb074 | 6171 | |
f37fcc2a | 6172 | intel_update_watermarks(crtc); |
e1fdc473 | 6173 | intel_enable_pipe(intel_crtc); |
be6a6f8e | 6174 | |
4b3a9526 VS |
6175 | assert_vblank_disabled(crtc); |
6176 | drm_crtc_vblank_on(crtc); | |
6177 | ||
f9b61ff6 DV |
6178 | for_each_encoder_on_crtc(dev, crtc, encoder) |
6179 | encoder->enable(encoder); | |
0b8765c6 | 6180 | } |
79e53945 | 6181 | |
87476d63 DV |
6182 | static void i9xx_pfit_disable(struct intel_crtc *crtc) |
6183 | { | |
6184 | struct drm_device *dev = crtc->base.dev; | |
6185 | struct drm_i915_private *dev_priv = dev->dev_private; | |
87476d63 | 6186 | |
6e3c9717 | 6187 | if (!crtc->config->gmch_pfit.control) |
328d8e82 | 6188 | return; |
87476d63 | 6189 | |
328d8e82 | 6190 | assert_pipe_disabled(dev_priv, crtc->pipe); |
87476d63 | 6191 | |
328d8e82 DV |
6192 | DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n", |
6193 | I915_READ(PFIT_CONTROL)); | |
6194 | I915_WRITE(PFIT_CONTROL, 0); | |
87476d63 DV |
6195 | } |
6196 | ||
0b8765c6 JB |
6197 | static void i9xx_crtc_disable(struct drm_crtc *crtc) |
6198 | { | |
6199 | struct drm_device *dev = crtc->dev; | |
6200 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6201 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 6202 | struct intel_encoder *encoder; |
0b8765c6 | 6203 | int pipe = intel_crtc->pipe; |
ef9c3aee | 6204 | |
6304cd91 VS |
6205 | /* |
6206 | * On gen2 planes are double buffered but the pipe isn't, so we must | |
6207 | * wait for planes to fully turn off before disabling the pipe. | |
6208 | */ | |
90e83e53 ACO |
6209 | if (IS_GEN2(dev)) |
6210 | intel_wait_for_vblank(dev, pipe); | |
6304cd91 | 6211 | |
4b3a9526 VS |
6212 | for_each_encoder_on_crtc(dev, crtc, encoder) |
6213 | encoder->disable(encoder); | |
6214 | ||
f9b61ff6 DV |
6215 | drm_crtc_vblank_off(crtc); |
6216 | assert_vblank_disabled(crtc); | |
6217 | ||
575f7ab7 | 6218 | intel_disable_pipe(intel_crtc); |
24a1f16d | 6219 | |
87476d63 | 6220 | i9xx_pfit_disable(intel_crtc); |
24a1f16d | 6221 | |
89b667f8 JB |
6222 | for_each_encoder_on_crtc(dev, crtc, encoder) |
6223 | if (encoder->post_disable) | |
6224 | encoder->post_disable(encoder); | |
6225 | ||
a65347ba | 6226 | if (!intel_crtc->config->has_dsi_encoder) { |
076ed3b2 CML |
6227 | if (IS_CHERRYVIEW(dev)) |
6228 | chv_disable_pll(dev_priv, pipe); | |
6229 | else if (IS_VALLEYVIEW(dev)) | |
6230 | vlv_disable_pll(dev_priv, pipe); | |
6231 | else | |
1c4e0274 | 6232 | i9xx_disable_pll(intel_crtc); |
076ed3b2 | 6233 | } |
0b8765c6 | 6234 | |
d6db995f VS |
6235 | for_each_encoder_on_crtc(dev, crtc, encoder) |
6236 | if (encoder->post_pll_disable) | |
6237 | encoder->post_pll_disable(encoder); | |
6238 | ||
4a3436e8 | 6239 | if (!IS_GEN2(dev)) |
a72e4c9f | 6240 | intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); |
0b8765c6 JB |
6241 | } |
6242 | ||
b17d48e2 ML |
6243 | static void intel_crtc_disable_noatomic(struct drm_crtc *crtc) |
6244 | { | |
842e0307 | 6245 | struct intel_encoder *encoder; |
b17d48e2 ML |
6246 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6247 | struct drm_i915_private *dev_priv = to_i915(crtc->dev); | |
6248 | enum intel_display_power_domain domain; | |
6249 | unsigned long domains; | |
6250 | ||
6251 | if (!intel_crtc->active) | |
6252 | return; | |
6253 | ||
a539205a | 6254 | if (to_intel_plane_state(crtc->primary->state)->visible) { |
fc32b1fd ML |
6255 | WARN_ON(intel_crtc->unpin_work); |
6256 | ||
2622a081 | 6257 | intel_pre_disable_primary_noatomic(crtc); |
54a41961 ML |
6258 | |
6259 | intel_crtc_disable_planes(crtc, 1 << drm_plane_index(crtc->primary)); | |
6260 | to_intel_plane_state(crtc->primary->state)->visible = false; | |
a539205a ML |
6261 | } |
6262 | ||
b17d48e2 | 6263 | dev_priv->display.crtc_disable(crtc); |
842e0307 ML |
6264 | |
6265 | DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was enabled, now disabled\n", | |
6266 | crtc->base.id); | |
6267 | ||
6268 | WARN_ON(drm_atomic_set_mode_for_crtc(crtc->state, NULL) < 0); | |
6269 | crtc->state->active = false; | |
37d9078b | 6270 | intel_crtc->active = false; |
842e0307 ML |
6271 | crtc->enabled = false; |
6272 | crtc->state->connector_mask = 0; | |
6273 | crtc->state->encoder_mask = 0; | |
6274 | ||
6275 | for_each_encoder_on_crtc(crtc->dev, crtc, encoder) | |
6276 | encoder->base.crtc = NULL; | |
6277 | ||
58f9c0bc | 6278 | intel_fbc_disable(intel_crtc); |
37d9078b | 6279 | intel_update_watermarks(crtc); |
1f7457b1 | 6280 | intel_disable_shared_dpll(intel_crtc); |
b17d48e2 ML |
6281 | |
6282 | domains = intel_crtc->enabled_power_domains; | |
6283 | for_each_power_domain(domain, domains) | |
6284 | intel_display_power_put(dev_priv, domain); | |
6285 | intel_crtc->enabled_power_domains = 0; | |
565602d7 ML |
6286 | |
6287 | dev_priv->active_crtcs &= ~(1 << intel_crtc->pipe); | |
6288 | dev_priv->min_pixclk[intel_crtc->pipe] = 0; | |
b17d48e2 ML |
6289 | } |
6290 | ||
6b72d486 ML |
6291 | /* |
6292 | * turn all crtc's off, but do not adjust state | |
6293 | * This has to be paired with a call to intel_modeset_setup_hw_state. | |
6294 | */ | |
70e0bd74 | 6295 | int intel_display_suspend(struct drm_device *dev) |
ee7b9f93 | 6296 | { |
e2c8b870 | 6297 | struct drm_i915_private *dev_priv = to_i915(dev); |
70e0bd74 | 6298 | struct drm_atomic_state *state; |
e2c8b870 | 6299 | int ret; |
70e0bd74 | 6300 | |
e2c8b870 ML |
6301 | state = drm_atomic_helper_suspend(dev); |
6302 | ret = PTR_ERR_OR_ZERO(state); | |
70e0bd74 ML |
6303 | if (ret) |
6304 | DRM_ERROR("Suspending crtc's failed with %i\n", ret); | |
e2c8b870 ML |
6305 | else |
6306 | dev_priv->modeset_restore_state = state; | |
70e0bd74 | 6307 | return ret; |
ee7b9f93 JB |
6308 | } |
6309 | ||
ea5b213a | 6310 | void intel_encoder_destroy(struct drm_encoder *encoder) |
7e7d76c3 | 6311 | { |
4ef69c7a | 6312 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); |
ea5b213a | 6313 | |
ea5b213a CW |
6314 | drm_encoder_cleanup(encoder); |
6315 | kfree(intel_encoder); | |
7e7d76c3 JB |
6316 | } |
6317 | ||
0a91ca29 DV |
6318 | /* Cross check the actual hw state with our own modeset state tracking (and it's |
6319 | * internal consistency). */ | |
c0ead703 | 6320 | static void intel_connector_verify_state(struct intel_connector *connector) |
79e53945 | 6321 | { |
35dd3c64 ML |
6322 | struct drm_crtc *crtc = connector->base.state->crtc; |
6323 | ||
6324 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", | |
6325 | connector->base.base.id, | |
6326 | connector->base.name); | |
6327 | ||
0a91ca29 | 6328 | if (connector->get_hw_state(connector)) { |
e85376cb | 6329 | struct intel_encoder *encoder = connector->encoder; |
35dd3c64 | 6330 | struct drm_connector_state *conn_state = connector->base.state; |
0a91ca29 | 6331 | |
35dd3c64 ML |
6332 | I915_STATE_WARN(!crtc, |
6333 | "connector enabled without attached crtc\n"); | |
0a91ca29 | 6334 | |
35dd3c64 ML |
6335 | if (!crtc) |
6336 | return; | |
6337 | ||
6338 | I915_STATE_WARN(!crtc->state->active, | |
6339 | "connector is active, but attached crtc isn't\n"); | |
6340 | ||
e85376cb | 6341 | if (!encoder || encoder->type == INTEL_OUTPUT_DP_MST) |
35dd3c64 ML |
6342 | return; |
6343 | ||
e85376cb | 6344 | I915_STATE_WARN(conn_state->best_encoder != &encoder->base, |
35dd3c64 ML |
6345 | "atomic encoder doesn't match attached encoder\n"); |
6346 | ||
e85376cb | 6347 | I915_STATE_WARN(conn_state->crtc != encoder->base.crtc, |
35dd3c64 ML |
6348 | "attached encoder crtc differs from connector crtc\n"); |
6349 | } else { | |
4d688a2a ML |
6350 | I915_STATE_WARN(crtc && crtc->state->active, |
6351 | "attached crtc is active, but connector isn't\n"); | |
35dd3c64 ML |
6352 | I915_STATE_WARN(!crtc && connector->base.state->best_encoder, |
6353 | "best encoder set without crtc!\n"); | |
0a91ca29 | 6354 | } |
79e53945 JB |
6355 | } |
6356 | ||
08d9bc92 ACO |
6357 | int intel_connector_init(struct intel_connector *connector) |
6358 | { | |
5350a031 | 6359 | drm_atomic_helper_connector_reset(&connector->base); |
08d9bc92 | 6360 | |
5350a031 | 6361 | if (!connector->base.state) |
08d9bc92 ACO |
6362 | return -ENOMEM; |
6363 | ||
08d9bc92 ACO |
6364 | return 0; |
6365 | } | |
6366 | ||
6367 | struct intel_connector *intel_connector_alloc(void) | |
6368 | { | |
6369 | struct intel_connector *connector; | |
6370 | ||
6371 | connector = kzalloc(sizeof *connector, GFP_KERNEL); | |
6372 | if (!connector) | |
6373 | return NULL; | |
6374 | ||
6375 | if (intel_connector_init(connector) < 0) { | |
6376 | kfree(connector); | |
6377 | return NULL; | |
6378 | } | |
6379 | ||
6380 | return connector; | |
6381 | } | |
6382 | ||
f0947c37 DV |
6383 | /* Simple connector->get_hw_state implementation for encoders that support only |
6384 | * one connector and no cloning and hence the encoder state determines the state | |
6385 | * of the connector. */ | |
6386 | bool intel_connector_get_hw_state(struct intel_connector *connector) | |
ea5b213a | 6387 | { |
24929352 | 6388 | enum pipe pipe = 0; |
f0947c37 | 6389 | struct intel_encoder *encoder = connector->encoder; |
ea5b213a | 6390 | |
f0947c37 | 6391 | return encoder->get_hw_state(encoder, &pipe); |
ea5b213a CW |
6392 | } |
6393 | ||
6d293983 | 6394 | static int pipe_required_fdi_lanes(struct intel_crtc_state *crtc_state) |
d272ddfa | 6395 | { |
6d293983 ACO |
6396 | if (crtc_state->base.enable && crtc_state->has_pch_encoder) |
6397 | return crtc_state->fdi_lanes; | |
d272ddfa VS |
6398 | |
6399 | return 0; | |
6400 | } | |
6401 | ||
6d293983 | 6402 | static int ironlake_check_fdi_lanes(struct drm_device *dev, enum pipe pipe, |
5cec258b | 6403 | struct intel_crtc_state *pipe_config) |
1857e1da | 6404 | { |
6d293983 ACO |
6405 | struct drm_atomic_state *state = pipe_config->base.state; |
6406 | struct intel_crtc *other_crtc; | |
6407 | struct intel_crtc_state *other_crtc_state; | |
6408 | ||
1857e1da DV |
6409 | DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n", |
6410 | pipe_name(pipe), pipe_config->fdi_lanes); | |
6411 | if (pipe_config->fdi_lanes > 4) { | |
6412 | DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n", | |
6413 | pipe_name(pipe), pipe_config->fdi_lanes); | |
6d293983 | 6414 | return -EINVAL; |
1857e1da DV |
6415 | } |
6416 | ||
bafb6553 | 6417 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) { |
1857e1da DV |
6418 | if (pipe_config->fdi_lanes > 2) { |
6419 | DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n", | |
6420 | pipe_config->fdi_lanes); | |
6d293983 | 6421 | return -EINVAL; |
1857e1da | 6422 | } else { |
6d293983 | 6423 | return 0; |
1857e1da DV |
6424 | } |
6425 | } | |
6426 | ||
6427 | if (INTEL_INFO(dev)->num_pipes == 2) | |
6d293983 | 6428 | return 0; |
1857e1da DV |
6429 | |
6430 | /* Ivybridge 3 pipe is really complicated */ | |
6431 | switch (pipe) { | |
6432 | case PIPE_A: | |
6d293983 | 6433 | return 0; |
1857e1da | 6434 | case PIPE_B: |
6d293983 ACO |
6435 | if (pipe_config->fdi_lanes <= 2) |
6436 | return 0; | |
6437 | ||
6438 | other_crtc = to_intel_crtc(intel_get_crtc_for_pipe(dev, PIPE_C)); | |
6439 | other_crtc_state = | |
6440 | intel_atomic_get_crtc_state(state, other_crtc); | |
6441 | if (IS_ERR(other_crtc_state)) | |
6442 | return PTR_ERR(other_crtc_state); | |
6443 | ||
6444 | if (pipe_required_fdi_lanes(other_crtc_state) > 0) { | |
1857e1da DV |
6445 | DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n", |
6446 | pipe_name(pipe), pipe_config->fdi_lanes); | |
6d293983 | 6447 | return -EINVAL; |
1857e1da | 6448 | } |
6d293983 | 6449 | return 0; |
1857e1da | 6450 | case PIPE_C: |
251cc67c VS |
6451 | if (pipe_config->fdi_lanes > 2) { |
6452 | DRM_DEBUG_KMS("only 2 lanes on pipe %c: required %i lanes\n", | |
6453 | pipe_name(pipe), pipe_config->fdi_lanes); | |
6d293983 | 6454 | return -EINVAL; |
251cc67c | 6455 | } |
6d293983 ACO |
6456 | |
6457 | other_crtc = to_intel_crtc(intel_get_crtc_for_pipe(dev, PIPE_B)); | |
6458 | other_crtc_state = | |
6459 | intel_atomic_get_crtc_state(state, other_crtc); | |
6460 | if (IS_ERR(other_crtc_state)) | |
6461 | return PTR_ERR(other_crtc_state); | |
6462 | ||
6463 | if (pipe_required_fdi_lanes(other_crtc_state) > 2) { | |
1857e1da | 6464 | DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n"); |
6d293983 | 6465 | return -EINVAL; |
1857e1da | 6466 | } |
6d293983 | 6467 | return 0; |
1857e1da DV |
6468 | default: |
6469 | BUG(); | |
6470 | } | |
6471 | } | |
6472 | ||
e29c22c0 DV |
6473 | #define RETRY 1 |
6474 | static int ironlake_fdi_compute_config(struct intel_crtc *intel_crtc, | |
5cec258b | 6475 | struct intel_crtc_state *pipe_config) |
877d48d5 | 6476 | { |
1857e1da | 6477 | struct drm_device *dev = intel_crtc->base.dev; |
7c5f93b0 | 6478 | const struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode; |
6d293983 ACO |
6479 | int lane, link_bw, fdi_dotclock, ret; |
6480 | bool needs_recompute = false; | |
877d48d5 | 6481 | |
e29c22c0 | 6482 | retry: |
877d48d5 DV |
6483 | /* FDI is a binary signal running at ~2.7GHz, encoding |
6484 | * each output octet as 10 bits. The actual frequency | |
6485 | * is stored as a divider into a 100MHz clock, and the | |
6486 | * mode pixel clock is stored in units of 1KHz. | |
6487 | * Hence the bw of each lane in terms of the mode signal | |
6488 | * is: | |
6489 | */ | |
21a727b3 | 6490 | link_bw = intel_fdi_link_freq(to_i915(dev), pipe_config); |
877d48d5 | 6491 | |
241bfc38 | 6492 | fdi_dotclock = adjusted_mode->crtc_clock; |
877d48d5 | 6493 | |
2bd89a07 | 6494 | lane = ironlake_get_lanes_required(fdi_dotclock, link_bw, |
877d48d5 DV |
6495 | pipe_config->pipe_bpp); |
6496 | ||
6497 | pipe_config->fdi_lanes = lane; | |
6498 | ||
2bd89a07 | 6499 | intel_link_compute_m_n(pipe_config->pipe_bpp, lane, fdi_dotclock, |
877d48d5 | 6500 | link_bw, &pipe_config->fdi_m_n); |
1857e1da | 6501 | |
e3b247da | 6502 | ret = ironlake_check_fdi_lanes(dev, intel_crtc->pipe, pipe_config); |
6d293983 | 6503 | if (ret == -EINVAL && pipe_config->pipe_bpp > 6*3) { |
e29c22c0 DV |
6504 | pipe_config->pipe_bpp -= 2*3; |
6505 | DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n", | |
6506 | pipe_config->pipe_bpp); | |
6507 | needs_recompute = true; | |
6508 | pipe_config->bw_constrained = true; | |
6509 | ||
6510 | goto retry; | |
6511 | } | |
6512 | ||
6513 | if (needs_recompute) | |
6514 | return RETRY; | |
6515 | ||
6d293983 | 6516 | return ret; |
877d48d5 DV |
6517 | } |
6518 | ||
8cfb3407 VS |
6519 | static bool pipe_config_supports_ips(struct drm_i915_private *dev_priv, |
6520 | struct intel_crtc_state *pipe_config) | |
6521 | { | |
6522 | if (pipe_config->pipe_bpp > 24) | |
6523 | return false; | |
6524 | ||
6525 | /* HSW can handle pixel rate up to cdclk? */ | |
2d1fe073 | 6526 | if (IS_HASWELL(dev_priv)) |
8cfb3407 VS |
6527 | return true; |
6528 | ||
6529 | /* | |
b432e5cf VS |
6530 | * We compare against max which means we must take |
6531 | * the increased cdclk requirement into account when | |
6532 | * calculating the new cdclk. | |
6533 | * | |
6534 | * Should measure whether using a lower cdclk w/o IPS | |
8cfb3407 VS |
6535 | */ |
6536 | return ilk_pipe_pixel_rate(pipe_config) <= | |
6537 | dev_priv->max_cdclk_freq * 95 / 100; | |
6538 | } | |
6539 | ||
42db64ef | 6540 | static void hsw_compute_ips_config(struct intel_crtc *crtc, |
5cec258b | 6541 | struct intel_crtc_state *pipe_config) |
42db64ef | 6542 | { |
8cfb3407 VS |
6543 | struct drm_device *dev = crtc->base.dev; |
6544 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6545 | ||
d330a953 | 6546 | pipe_config->ips_enabled = i915.enable_ips && |
8cfb3407 VS |
6547 | hsw_crtc_supports_ips(crtc) && |
6548 | pipe_config_supports_ips(dev_priv, pipe_config); | |
42db64ef PZ |
6549 | } |
6550 | ||
39acb4aa VS |
6551 | static bool intel_crtc_supports_double_wide(const struct intel_crtc *crtc) |
6552 | { | |
6553 | const struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); | |
6554 | ||
6555 | /* GDG double wide on either pipe, otherwise pipe A only */ | |
6556 | return INTEL_INFO(dev_priv)->gen < 4 && | |
6557 | (crtc->pipe == PIPE_A || IS_I915G(dev_priv)); | |
6558 | } | |
6559 | ||
a43f6e0f | 6560 | static int intel_crtc_compute_config(struct intel_crtc *crtc, |
5cec258b | 6561 | struct intel_crtc_state *pipe_config) |
79e53945 | 6562 | { |
a43f6e0f | 6563 | struct drm_device *dev = crtc->base.dev; |
8bd31e67 | 6564 | struct drm_i915_private *dev_priv = dev->dev_private; |
7c5f93b0 | 6565 | const struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode; |
89749350 | 6566 | |
ad3a4479 | 6567 | /* FIXME should check pixel clock limits on all platforms */ |
cf532bb2 | 6568 | if (INTEL_INFO(dev)->gen < 4) { |
39acb4aa | 6569 | int clock_limit = dev_priv->max_cdclk_freq * 9 / 10; |
cf532bb2 VS |
6570 | |
6571 | /* | |
39acb4aa | 6572 | * Enable double wide mode when the dot clock |
cf532bb2 | 6573 | * is > 90% of the (display) core speed. |
cf532bb2 | 6574 | */ |
39acb4aa VS |
6575 | if (intel_crtc_supports_double_wide(crtc) && |
6576 | adjusted_mode->crtc_clock > clock_limit) { | |
ad3a4479 | 6577 | clock_limit *= 2; |
cf532bb2 | 6578 | pipe_config->double_wide = true; |
ad3a4479 VS |
6579 | } |
6580 | ||
39acb4aa VS |
6581 | if (adjusted_mode->crtc_clock > clock_limit) { |
6582 | DRM_DEBUG_KMS("requested pixel clock (%d kHz) too high (max: %d kHz, double wide: %s)\n", | |
6583 | adjusted_mode->crtc_clock, clock_limit, | |
6584 | yesno(pipe_config->double_wide)); | |
e29c22c0 | 6585 | return -EINVAL; |
39acb4aa | 6586 | } |
2c07245f | 6587 | } |
89749350 | 6588 | |
1d1d0e27 VS |
6589 | /* |
6590 | * Pipe horizontal size must be even in: | |
6591 | * - DVO ganged mode | |
6592 | * - LVDS dual channel mode | |
6593 | * - Double wide pipe | |
6594 | */ | |
a93e255f | 6595 | if ((intel_pipe_will_have_type(pipe_config, INTEL_OUTPUT_LVDS) && |
1d1d0e27 VS |
6596 | intel_is_dual_link_lvds(dev)) || pipe_config->double_wide) |
6597 | pipe_config->pipe_src_w &= ~1; | |
6598 | ||
8693a824 DL |
6599 | /* Cantiga+ cannot handle modes with a hsync front porch of 0. |
6600 | * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw. | |
44f46b42 CW |
6601 | */ |
6602 | if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) && | |
aad941d5 | 6603 | adjusted_mode->crtc_hsync_start == adjusted_mode->crtc_hdisplay) |
e29c22c0 | 6604 | return -EINVAL; |
44f46b42 | 6605 | |
f5adf94e | 6606 | if (HAS_IPS(dev)) |
a43f6e0f DV |
6607 | hsw_compute_ips_config(crtc, pipe_config); |
6608 | ||
877d48d5 | 6609 | if (pipe_config->has_pch_encoder) |
a43f6e0f | 6610 | return ironlake_fdi_compute_config(crtc, pipe_config); |
877d48d5 | 6611 | |
cf5a15be | 6612 | return 0; |
79e53945 JB |
6613 | } |
6614 | ||
1652d19e VS |
6615 | static int skylake_get_display_clock_speed(struct drm_device *dev) |
6616 | { | |
6617 | struct drm_i915_private *dev_priv = to_i915(dev); | |
6618 | uint32_t lcpll1 = I915_READ(LCPLL1_CTL); | |
6619 | uint32_t cdctl = I915_READ(CDCLK_CTL); | |
6620 | uint32_t linkrate; | |
6621 | ||
414355a7 | 6622 | if (!(lcpll1 & LCPLL_PLL_ENABLE)) |
1652d19e | 6623 | return 24000; /* 24MHz is the cd freq with NSSC ref */ |
1652d19e VS |
6624 | |
6625 | if ((cdctl & CDCLK_FREQ_SEL_MASK) == CDCLK_FREQ_540) | |
6626 | return 540000; | |
6627 | ||
6628 | linkrate = (I915_READ(DPLL_CTRL1) & | |
71cd8423 | 6629 | DPLL_CTRL1_LINK_RATE_MASK(SKL_DPLL0)) >> 1; |
1652d19e | 6630 | |
71cd8423 DL |
6631 | if (linkrate == DPLL_CTRL1_LINK_RATE_2160 || |
6632 | linkrate == DPLL_CTRL1_LINK_RATE_1080) { | |
1652d19e VS |
6633 | /* vco 8640 */ |
6634 | switch (cdctl & CDCLK_FREQ_SEL_MASK) { | |
6635 | case CDCLK_FREQ_450_432: | |
6636 | return 432000; | |
6637 | case CDCLK_FREQ_337_308: | |
6638 | return 308570; | |
6639 | case CDCLK_FREQ_675_617: | |
6640 | return 617140; | |
6641 | default: | |
6642 | WARN(1, "Unknown cd freq selection\n"); | |
6643 | } | |
6644 | } else { | |
6645 | /* vco 8100 */ | |
6646 | switch (cdctl & CDCLK_FREQ_SEL_MASK) { | |
6647 | case CDCLK_FREQ_450_432: | |
6648 | return 450000; | |
6649 | case CDCLK_FREQ_337_308: | |
6650 | return 337500; | |
6651 | case CDCLK_FREQ_675_617: | |
6652 | return 675000; | |
6653 | default: | |
6654 | WARN(1, "Unknown cd freq selection\n"); | |
6655 | } | |
6656 | } | |
6657 | ||
6658 | /* error case, do as if DPLL0 isn't enabled */ | |
6659 | return 24000; | |
6660 | } | |
6661 | ||
acd3f3d3 BP |
6662 | static int broxton_get_display_clock_speed(struct drm_device *dev) |
6663 | { | |
6664 | struct drm_i915_private *dev_priv = to_i915(dev); | |
6665 | uint32_t cdctl = I915_READ(CDCLK_CTL); | |
6666 | uint32_t pll_ratio = I915_READ(BXT_DE_PLL_CTL) & BXT_DE_PLL_RATIO_MASK; | |
6667 | uint32_t pll_enab = I915_READ(BXT_DE_PLL_ENABLE); | |
6668 | int cdclk; | |
6669 | ||
6670 | if (!(pll_enab & BXT_DE_PLL_PLL_ENABLE)) | |
6671 | return 19200; | |
6672 | ||
6673 | cdclk = 19200 * pll_ratio / 2; | |
6674 | ||
6675 | switch (cdctl & BXT_CDCLK_CD2X_DIV_SEL_MASK) { | |
6676 | case BXT_CDCLK_CD2X_DIV_SEL_1: | |
6677 | return cdclk; /* 576MHz or 624MHz */ | |
6678 | case BXT_CDCLK_CD2X_DIV_SEL_1_5: | |
6679 | return cdclk * 2 / 3; /* 384MHz */ | |
6680 | case BXT_CDCLK_CD2X_DIV_SEL_2: | |
6681 | return cdclk / 2; /* 288MHz */ | |
6682 | case BXT_CDCLK_CD2X_DIV_SEL_4: | |
6683 | return cdclk / 4; /* 144MHz */ | |
6684 | } | |
6685 | ||
6686 | /* error case, do as if DE PLL isn't enabled */ | |
6687 | return 19200; | |
6688 | } | |
6689 | ||
1652d19e VS |
6690 | static int broadwell_get_display_clock_speed(struct drm_device *dev) |
6691 | { | |
6692 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6693 | uint32_t lcpll = I915_READ(LCPLL_CTL); | |
6694 | uint32_t freq = lcpll & LCPLL_CLK_FREQ_MASK; | |
6695 | ||
6696 | if (lcpll & LCPLL_CD_SOURCE_FCLK) | |
6697 | return 800000; | |
6698 | else if (I915_READ(FUSE_STRAP) & HSW_CDCLK_LIMIT) | |
6699 | return 450000; | |
6700 | else if (freq == LCPLL_CLK_FREQ_450) | |
6701 | return 450000; | |
6702 | else if (freq == LCPLL_CLK_FREQ_54O_BDW) | |
6703 | return 540000; | |
6704 | else if (freq == LCPLL_CLK_FREQ_337_5_BDW) | |
6705 | return 337500; | |
6706 | else | |
6707 | return 675000; | |
6708 | } | |
6709 | ||
6710 | static int haswell_get_display_clock_speed(struct drm_device *dev) | |
6711 | { | |
6712 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6713 | uint32_t lcpll = I915_READ(LCPLL_CTL); | |
6714 | uint32_t freq = lcpll & LCPLL_CLK_FREQ_MASK; | |
6715 | ||
6716 | if (lcpll & LCPLL_CD_SOURCE_FCLK) | |
6717 | return 800000; | |
6718 | else if (I915_READ(FUSE_STRAP) & HSW_CDCLK_LIMIT) | |
6719 | return 450000; | |
6720 | else if (freq == LCPLL_CLK_FREQ_450) | |
6721 | return 450000; | |
6722 | else if (IS_HSW_ULT(dev)) | |
6723 | return 337500; | |
6724 | else | |
6725 | return 540000; | |
79e53945 JB |
6726 | } |
6727 | ||
25eb05fc JB |
6728 | static int valleyview_get_display_clock_speed(struct drm_device *dev) |
6729 | { | |
bfa7df01 VS |
6730 | return vlv_get_cck_clock_hpll(to_i915(dev), "cdclk", |
6731 | CCK_DISPLAY_CLOCK_CONTROL); | |
25eb05fc JB |
6732 | } |
6733 | ||
b37a6434 VS |
6734 | static int ilk_get_display_clock_speed(struct drm_device *dev) |
6735 | { | |
6736 | return 450000; | |
6737 | } | |
6738 | ||
e70236a8 JB |
6739 | static int i945_get_display_clock_speed(struct drm_device *dev) |
6740 | { | |
6741 | return 400000; | |
6742 | } | |
79e53945 | 6743 | |
e70236a8 | 6744 | static int i915_get_display_clock_speed(struct drm_device *dev) |
79e53945 | 6745 | { |
e907f170 | 6746 | return 333333; |
e70236a8 | 6747 | } |
79e53945 | 6748 | |
e70236a8 JB |
6749 | static int i9xx_misc_get_display_clock_speed(struct drm_device *dev) |
6750 | { | |
6751 | return 200000; | |
6752 | } | |
79e53945 | 6753 | |
257a7ffc DV |
6754 | static int pnv_get_display_clock_speed(struct drm_device *dev) |
6755 | { | |
6756 | u16 gcfgc = 0; | |
6757 | ||
6758 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); | |
6759 | ||
6760 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
6761 | case GC_DISPLAY_CLOCK_267_MHZ_PNV: | |
e907f170 | 6762 | return 266667; |
257a7ffc | 6763 | case GC_DISPLAY_CLOCK_333_MHZ_PNV: |
e907f170 | 6764 | return 333333; |
257a7ffc | 6765 | case GC_DISPLAY_CLOCK_444_MHZ_PNV: |
e907f170 | 6766 | return 444444; |
257a7ffc DV |
6767 | case GC_DISPLAY_CLOCK_200_MHZ_PNV: |
6768 | return 200000; | |
6769 | default: | |
6770 | DRM_ERROR("Unknown pnv display core clock 0x%04x\n", gcfgc); | |
6771 | case GC_DISPLAY_CLOCK_133_MHZ_PNV: | |
e907f170 | 6772 | return 133333; |
257a7ffc | 6773 | case GC_DISPLAY_CLOCK_167_MHZ_PNV: |
e907f170 | 6774 | return 166667; |
257a7ffc DV |
6775 | } |
6776 | } | |
6777 | ||
e70236a8 JB |
6778 | static int i915gm_get_display_clock_speed(struct drm_device *dev) |
6779 | { | |
6780 | u16 gcfgc = 0; | |
79e53945 | 6781 | |
e70236a8 JB |
6782 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); |
6783 | ||
6784 | if (gcfgc & GC_LOW_FREQUENCY_ENABLE) | |
e907f170 | 6785 | return 133333; |
e70236a8 JB |
6786 | else { |
6787 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
6788 | case GC_DISPLAY_CLOCK_333_MHZ: | |
e907f170 | 6789 | return 333333; |
e70236a8 JB |
6790 | default: |
6791 | case GC_DISPLAY_CLOCK_190_200_MHZ: | |
6792 | return 190000; | |
79e53945 | 6793 | } |
e70236a8 JB |
6794 | } |
6795 | } | |
6796 | ||
6797 | static int i865_get_display_clock_speed(struct drm_device *dev) | |
6798 | { | |
e907f170 | 6799 | return 266667; |
e70236a8 JB |
6800 | } |
6801 | ||
1b1d2716 | 6802 | static int i85x_get_display_clock_speed(struct drm_device *dev) |
e70236a8 JB |
6803 | { |
6804 | u16 hpllcc = 0; | |
1b1d2716 | 6805 | |
65cd2b3f VS |
6806 | /* |
6807 | * 852GM/852GMV only supports 133 MHz and the HPLLCC | |
6808 | * encoding is different :( | |
6809 | * FIXME is this the right way to detect 852GM/852GMV? | |
6810 | */ | |
6811 | if (dev->pdev->revision == 0x1) | |
6812 | return 133333; | |
6813 | ||
1b1d2716 VS |
6814 | pci_bus_read_config_word(dev->pdev->bus, |
6815 | PCI_DEVFN(0, 3), HPLLCC, &hpllcc); | |
6816 | ||
e70236a8 JB |
6817 | /* Assume that the hardware is in the high speed state. This |
6818 | * should be the default. | |
6819 | */ | |
6820 | switch (hpllcc & GC_CLOCK_CONTROL_MASK) { | |
6821 | case GC_CLOCK_133_200: | |
1b1d2716 | 6822 | case GC_CLOCK_133_200_2: |
e70236a8 JB |
6823 | case GC_CLOCK_100_200: |
6824 | return 200000; | |
6825 | case GC_CLOCK_166_250: | |
6826 | return 250000; | |
6827 | case GC_CLOCK_100_133: | |
e907f170 | 6828 | return 133333; |
1b1d2716 VS |
6829 | case GC_CLOCK_133_266: |
6830 | case GC_CLOCK_133_266_2: | |
6831 | case GC_CLOCK_166_266: | |
6832 | return 266667; | |
e70236a8 | 6833 | } |
79e53945 | 6834 | |
e70236a8 JB |
6835 | /* Shouldn't happen */ |
6836 | return 0; | |
6837 | } | |
79e53945 | 6838 | |
e70236a8 JB |
6839 | static int i830_get_display_clock_speed(struct drm_device *dev) |
6840 | { | |
e907f170 | 6841 | return 133333; |
79e53945 JB |
6842 | } |
6843 | ||
34edce2f VS |
6844 | static unsigned int intel_hpll_vco(struct drm_device *dev) |
6845 | { | |
6846 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6847 | static const unsigned int blb_vco[8] = { | |
6848 | [0] = 3200000, | |
6849 | [1] = 4000000, | |
6850 | [2] = 5333333, | |
6851 | [3] = 4800000, | |
6852 | [4] = 6400000, | |
6853 | }; | |
6854 | static const unsigned int pnv_vco[8] = { | |
6855 | [0] = 3200000, | |
6856 | [1] = 4000000, | |
6857 | [2] = 5333333, | |
6858 | [3] = 4800000, | |
6859 | [4] = 2666667, | |
6860 | }; | |
6861 | static const unsigned int cl_vco[8] = { | |
6862 | [0] = 3200000, | |
6863 | [1] = 4000000, | |
6864 | [2] = 5333333, | |
6865 | [3] = 6400000, | |
6866 | [4] = 3333333, | |
6867 | [5] = 3566667, | |
6868 | [6] = 4266667, | |
6869 | }; | |
6870 | static const unsigned int elk_vco[8] = { | |
6871 | [0] = 3200000, | |
6872 | [1] = 4000000, | |
6873 | [2] = 5333333, | |
6874 | [3] = 4800000, | |
6875 | }; | |
6876 | static const unsigned int ctg_vco[8] = { | |
6877 | [0] = 3200000, | |
6878 | [1] = 4000000, | |
6879 | [2] = 5333333, | |
6880 | [3] = 6400000, | |
6881 | [4] = 2666667, | |
6882 | [5] = 4266667, | |
6883 | }; | |
6884 | const unsigned int *vco_table; | |
6885 | unsigned int vco; | |
6886 | uint8_t tmp = 0; | |
6887 | ||
6888 | /* FIXME other chipsets? */ | |
6889 | if (IS_GM45(dev)) | |
6890 | vco_table = ctg_vco; | |
6891 | else if (IS_G4X(dev)) | |
6892 | vco_table = elk_vco; | |
6893 | else if (IS_CRESTLINE(dev)) | |
6894 | vco_table = cl_vco; | |
6895 | else if (IS_PINEVIEW(dev)) | |
6896 | vco_table = pnv_vco; | |
6897 | else if (IS_G33(dev)) | |
6898 | vco_table = blb_vco; | |
6899 | else | |
6900 | return 0; | |
6901 | ||
6902 | tmp = I915_READ(IS_MOBILE(dev) ? HPLLVCO_MOBILE : HPLLVCO); | |
6903 | ||
6904 | vco = vco_table[tmp & 0x7]; | |
6905 | if (vco == 0) | |
6906 | DRM_ERROR("Bad HPLL VCO (HPLLVCO=0x%02x)\n", tmp); | |
6907 | else | |
6908 | DRM_DEBUG_KMS("HPLL VCO %u kHz\n", vco); | |
6909 | ||
6910 | return vco; | |
6911 | } | |
6912 | ||
6913 | static int gm45_get_display_clock_speed(struct drm_device *dev) | |
6914 | { | |
6915 | unsigned int cdclk_sel, vco = intel_hpll_vco(dev); | |
6916 | uint16_t tmp = 0; | |
6917 | ||
6918 | pci_read_config_word(dev->pdev, GCFGC, &tmp); | |
6919 | ||
6920 | cdclk_sel = (tmp >> 12) & 0x1; | |
6921 | ||
6922 | switch (vco) { | |
6923 | case 2666667: | |
6924 | case 4000000: | |
6925 | case 5333333: | |
6926 | return cdclk_sel ? 333333 : 222222; | |
6927 | case 3200000: | |
6928 | return cdclk_sel ? 320000 : 228571; | |
6929 | default: | |
6930 | DRM_ERROR("Unable to determine CDCLK. HPLL VCO=%u, CFGC=0x%04x\n", vco, tmp); | |
6931 | return 222222; | |
6932 | } | |
6933 | } | |
6934 | ||
6935 | static int i965gm_get_display_clock_speed(struct drm_device *dev) | |
6936 | { | |
6937 | static const uint8_t div_3200[] = { 16, 10, 8 }; | |
6938 | static const uint8_t div_4000[] = { 20, 12, 10 }; | |
6939 | static const uint8_t div_5333[] = { 24, 16, 14 }; | |
6940 | const uint8_t *div_table; | |
6941 | unsigned int cdclk_sel, vco = intel_hpll_vco(dev); | |
6942 | uint16_t tmp = 0; | |
6943 | ||
6944 | pci_read_config_word(dev->pdev, GCFGC, &tmp); | |
6945 | ||
6946 | cdclk_sel = ((tmp >> 8) & 0x1f) - 1; | |
6947 | ||
6948 | if (cdclk_sel >= ARRAY_SIZE(div_3200)) | |
6949 | goto fail; | |
6950 | ||
6951 | switch (vco) { | |
6952 | case 3200000: | |
6953 | div_table = div_3200; | |
6954 | break; | |
6955 | case 4000000: | |
6956 | div_table = div_4000; | |
6957 | break; | |
6958 | case 5333333: | |
6959 | div_table = div_5333; | |
6960 | break; | |
6961 | default: | |
6962 | goto fail; | |
6963 | } | |
6964 | ||
6965 | return DIV_ROUND_CLOSEST(vco, div_table[cdclk_sel]); | |
6966 | ||
caf4e252 | 6967 | fail: |
34edce2f VS |
6968 | DRM_ERROR("Unable to determine CDCLK. HPLL VCO=%u kHz, CFGC=0x%04x\n", vco, tmp); |
6969 | return 200000; | |
6970 | } | |
6971 | ||
6972 | static int g33_get_display_clock_speed(struct drm_device *dev) | |
6973 | { | |
6974 | static const uint8_t div_3200[] = { 12, 10, 8, 7, 5, 16 }; | |
6975 | static const uint8_t div_4000[] = { 14, 12, 10, 8, 6, 20 }; | |
6976 | static const uint8_t div_4800[] = { 20, 14, 12, 10, 8, 24 }; | |
6977 | static const uint8_t div_5333[] = { 20, 16, 12, 12, 8, 28 }; | |
6978 | const uint8_t *div_table; | |
6979 | unsigned int cdclk_sel, vco = intel_hpll_vco(dev); | |
6980 | uint16_t tmp = 0; | |
6981 | ||
6982 | pci_read_config_word(dev->pdev, GCFGC, &tmp); | |
6983 | ||
6984 | cdclk_sel = (tmp >> 4) & 0x7; | |
6985 | ||
6986 | if (cdclk_sel >= ARRAY_SIZE(div_3200)) | |
6987 | goto fail; | |
6988 | ||
6989 | switch (vco) { | |
6990 | case 3200000: | |
6991 | div_table = div_3200; | |
6992 | break; | |
6993 | case 4000000: | |
6994 | div_table = div_4000; | |
6995 | break; | |
6996 | case 4800000: | |
6997 | div_table = div_4800; | |
6998 | break; | |
6999 | case 5333333: | |
7000 | div_table = div_5333; | |
7001 | break; | |
7002 | default: | |
7003 | goto fail; | |
7004 | } | |
7005 | ||
7006 | return DIV_ROUND_CLOSEST(vco, div_table[cdclk_sel]); | |
7007 | ||
caf4e252 | 7008 | fail: |
34edce2f VS |
7009 | DRM_ERROR("Unable to determine CDCLK. HPLL VCO=%u kHz, CFGC=0x%08x\n", vco, tmp); |
7010 | return 190476; | |
7011 | } | |
7012 | ||
2c07245f | 7013 | static void |
a65851af | 7014 | intel_reduce_m_n_ratio(uint32_t *num, uint32_t *den) |
2c07245f | 7015 | { |
a65851af VS |
7016 | while (*num > DATA_LINK_M_N_MASK || |
7017 | *den > DATA_LINK_M_N_MASK) { | |
2c07245f ZW |
7018 | *num >>= 1; |
7019 | *den >>= 1; | |
7020 | } | |
7021 | } | |
7022 | ||
a65851af VS |
7023 | static void compute_m_n(unsigned int m, unsigned int n, |
7024 | uint32_t *ret_m, uint32_t *ret_n) | |
7025 | { | |
7026 | *ret_n = min_t(unsigned int, roundup_pow_of_two(n), DATA_LINK_N_MAX); | |
7027 | *ret_m = div_u64((uint64_t) m * *ret_n, n); | |
7028 | intel_reduce_m_n_ratio(ret_m, ret_n); | |
7029 | } | |
7030 | ||
e69d0bc1 DV |
7031 | void |
7032 | intel_link_compute_m_n(int bits_per_pixel, int nlanes, | |
7033 | int pixel_clock, int link_clock, | |
7034 | struct intel_link_m_n *m_n) | |
2c07245f | 7035 | { |
e69d0bc1 | 7036 | m_n->tu = 64; |
a65851af VS |
7037 | |
7038 | compute_m_n(bits_per_pixel * pixel_clock, | |
7039 | link_clock * nlanes * 8, | |
7040 | &m_n->gmch_m, &m_n->gmch_n); | |
7041 | ||
7042 | compute_m_n(pixel_clock, link_clock, | |
7043 | &m_n->link_m, &m_n->link_n); | |
2c07245f ZW |
7044 | } |
7045 | ||
a7615030 CW |
7046 | static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) |
7047 | { | |
d330a953 JN |
7048 | if (i915.panel_use_ssc >= 0) |
7049 | return i915.panel_use_ssc != 0; | |
41aa3448 | 7050 | return dev_priv->vbt.lvds_use_ssc |
435793df | 7051 | && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE); |
a7615030 CW |
7052 | } |
7053 | ||
7429e9d4 | 7054 | static uint32_t pnv_dpll_compute_fp(struct dpll *dpll) |
c65d77d8 | 7055 | { |
7df00d7a | 7056 | return (1 << dpll->n) << 16 | dpll->m2; |
7429e9d4 | 7057 | } |
f47709a9 | 7058 | |
7429e9d4 DV |
7059 | static uint32_t i9xx_dpll_compute_fp(struct dpll *dpll) |
7060 | { | |
7061 | return dpll->n << 16 | dpll->m1 << 8 | dpll->m2; | |
c65d77d8 JB |
7062 | } |
7063 | ||
f47709a9 | 7064 | static void i9xx_update_pll_dividers(struct intel_crtc *crtc, |
190f68c5 | 7065 | struct intel_crtc_state *crtc_state, |
a7516a05 JB |
7066 | intel_clock_t *reduced_clock) |
7067 | { | |
f47709a9 | 7068 | struct drm_device *dev = crtc->base.dev; |
a7516a05 JB |
7069 | u32 fp, fp2 = 0; |
7070 | ||
7071 | if (IS_PINEVIEW(dev)) { | |
190f68c5 | 7072 | fp = pnv_dpll_compute_fp(&crtc_state->dpll); |
a7516a05 | 7073 | if (reduced_clock) |
7429e9d4 | 7074 | fp2 = pnv_dpll_compute_fp(reduced_clock); |
a7516a05 | 7075 | } else { |
190f68c5 | 7076 | fp = i9xx_dpll_compute_fp(&crtc_state->dpll); |
a7516a05 | 7077 | if (reduced_clock) |
7429e9d4 | 7078 | fp2 = i9xx_dpll_compute_fp(reduced_clock); |
a7516a05 JB |
7079 | } |
7080 | ||
190f68c5 | 7081 | crtc_state->dpll_hw_state.fp0 = fp; |
a7516a05 | 7082 | |
f47709a9 | 7083 | crtc->lowfreq_avail = false; |
a93e255f | 7084 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS) && |
ab585dea | 7085 | reduced_clock) { |
190f68c5 | 7086 | crtc_state->dpll_hw_state.fp1 = fp2; |
f47709a9 | 7087 | crtc->lowfreq_avail = true; |
a7516a05 | 7088 | } else { |
190f68c5 | 7089 | crtc_state->dpll_hw_state.fp1 = fp; |
a7516a05 JB |
7090 | } |
7091 | } | |
7092 | ||
5e69f97f CML |
7093 | static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv, enum pipe |
7094 | pipe) | |
89b667f8 JB |
7095 | { |
7096 | u32 reg_val; | |
7097 | ||
7098 | /* | |
7099 | * PLLB opamp always calibrates to max value of 0x3f, force enable it | |
7100 | * and set it to a reasonable value instead. | |
7101 | */ | |
ab3c759a | 7102 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1)); |
89b667f8 JB |
7103 | reg_val &= 0xffffff00; |
7104 | reg_val |= 0x00000030; | |
ab3c759a | 7105 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val); |
89b667f8 | 7106 | |
ab3c759a | 7107 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13); |
89b667f8 JB |
7108 | reg_val &= 0x8cffffff; |
7109 | reg_val = 0x8c000000; | |
ab3c759a | 7110 | vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val); |
89b667f8 | 7111 | |
ab3c759a | 7112 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1)); |
89b667f8 | 7113 | reg_val &= 0xffffff00; |
ab3c759a | 7114 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val); |
89b667f8 | 7115 | |
ab3c759a | 7116 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13); |
89b667f8 JB |
7117 | reg_val &= 0x00ffffff; |
7118 | reg_val |= 0xb0000000; | |
ab3c759a | 7119 | vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val); |
89b667f8 JB |
7120 | } |
7121 | ||
b551842d DV |
7122 | static void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc, |
7123 | struct intel_link_m_n *m_n) | |
7124 | { | |
7125 | struct drm_device *dev = crtc->base.dev; | |
7126 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7127 | int pipe = crtc->pipe; | |
7128 | ||
e3b95f1e DV |
7129 | I915_WRITE(PCH_TRANS_DATA_M1(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m); |
7130 | I915_WRITE(PCH_TRANS_DATA_N1(pipe), m_n->gmch_n); | |
7131 | I915_WRITE(PCH_TRANS_LINK_M1(pipe), m_n->link_m); | |
7132 | I915_WRITE(PCH_TRANS_LINK_N1(pipe), m_n->link_n); | |
b551842d DV |
7133 | } |
7134 | ||
7135 | static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc, | |
f769cd24 VK |
7136 | struct intel_link_m_n *m_n, |
7137 | struct intel_link_m_n *m2_n2) | |
b551842d DV |
7138 | { |
7139 | struct drm_device *dev = crtc->base.dev; | |
7140 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7141 | int pipe = crtc->pipe; | |
6e3c9717 | 7142 | enum transcoder transcoder = crtc->config->cpu_transcoder; |
b551842d DV |
7143 | |
7144 | if (INTEL_INFO(dev)->gen >= 5) { | |
7145 | I915_WRITE(PIPE_DATA_M1(transcoder), TU_SIZE(m_n->tu) | m_n->gmch_m); | |
7146 | I915_WRITE(PIPE_DATA_N1(transcoder), m_n->gmch_n); | |
7147 | I915_WRITE(PIPE_LINK_M1(transcoder), m_n->link_m); | |
7148 | I915_WRITE(PIPE_LINK_N1(transcoder), m_n->link_n); | |
f769cd24 VK |
7149 | /* M2_N2 registers to be set only for gen < 8 (M2_N2 available |
7150 | * for gen < 8) and if DRRS is supported (to make sure the | |
7151 | * registers are not unnecessarily accessed). | |
7152 | */ | |
44395bfe | 7153 | if (m2_n2 && (IS_CHERRYVIEW(dev) || INTEL_INFO(dev)->gen < 8) && |
6e3c9717 | 7154 | crtc->config->has_drrs) { |
f769cd24 VK |
7155 | I915_WRITE(PIPE_DATA_M2(transcoder), |
7156 | TU_SIZE(m2_n2->tu) | m2_n2->gmch_m); | |
7157 | I915_WRITE(PIPE_DATA_N2(transcoder), m2_n2->gmch_n); | |
7158 | I915_WRITE(PIPE_LINK_M2(transcoder), m2_n2->link_m); | |
7159 | I915_WRITE(PIPE_LINK_N2(transcoder), m2_n2->link_n); | |
7160 | } | |
b551842d | 7161 | } else { |
e3b95f1e DV |
7162 | I915_WRITE(PIPE_DATA_M_G4X(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m); |
7163 | I915_WRITE(PIPE_DATA_N_G4X(pipe), m_n->gmch_n); | |
7164 | I915_WRITE(PIPE_LINK_M_G4X(pipe), m_n->link_m); | |
7165 | I915_WRITE(PIPE_LINK_N_G4X(pipe), m_n->link_n); | |
b551842d DV |
7166 | } |
7167 | } | |
7168 | ||
fe3cd48d | 7169 | void intel_dp_set_m_n(struct intel_crtc *crtc, enum link_m_n_set m_n) |
03afc4a2 | 7170 | { |
fe3cd48d R |
7171 | struct intel_link_m_n *dp_m_n, *dp_m2_n2 = NULL; |
7172 | ||
7173 | if (m_n == M1_N1) { | |
7174 | dp_m_n = &crtc->config->dp_m_n; | |
7175 | dp_m2_n2 = &crtc->config->dp_m2_n2; | |
7176 | } else if (m_n == M2_N2) { | |
7177 | ||
7178 | /* | |
7179 | * M2_N2 registers are not supported. Hence m2_n2 divider value | |
7180 | * needs to be programmed into M1_N1. | |
7181 | */ | |
7182 | dp_m_n = &crtc->config->dp_m2_n2; | |
7183 | } else { | |
7184 | DRM_ERROR("Unsupported divider value\n"); | |
7185 | return; | |
7186 | } | |
7187 | ||
6e3c9717 ACO |
7188 | if (crtc->config->has_pch_encoder) |
7189 | intel_pch_transcoder_set_m_n(crtc, &crtc->config->dp_m_n); | |
03afc4a2 | 7190 | else |
fe3cd48d | 7191 | intel_cpu_transcoder_set_m_n(crtc, dp_m_n, dp_m2_n2); |
03afc4a2 DV |
7192 | } |
7193 | ||
251ac862 DV |
7194 | static void vlv_compute_dpll(struct intel_crtc *crtc, |
7195 | struct intel_crtc_state *pipe_config) | |
bdd4b6a6 | 7196 | { |
03ed5cbf | 7197 | pipe_config->dpll_hw_state.dpll = DPLL_INTEGRATED_REF_CLK_VLV | |
cd2d34d9 | 7198 | DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS; |
03ed5cbf VS |
7199 | if (crtc->pipe != PIPE_A) |
7200 | pipe_config->dpll_hw_state.dpll |= DPLL_INTEGRATED_CRI_CLK_VLV; | |
bdd4b6a6 | 7201 | |
cd2d34d9 | 7202 | /* DPLL not used with DSI, but still need the rest set up */ |
187a1c07 | 7203 | if (!pipe_config->has_dsi_encoder) |
cd2d34d9 VS |
7204 | pipe_config->dpll_hw_state.dpll |= DPLL_VCO_ENABLE | |
7205 | DPLL_EXT_BUFFER_ENABLE_VLV; | |
7206 | ||
03ed5cbf VS |
7207 | pipe_config->dpll_hw_state.dpll_md = |
7208 | (pipe_config->pixel_multiplier - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
7209 | } | |
bdd4b6a6 | 7210 | |
03ed5cbf VS |
7211 | static void chv_compute_dpll(struct intel_crtc *crtc, |
7212 | struct intel_crtc_state *pipe_config) | |
7213 | { | |
7214 | pipe_config->dpll_hw_state.dpll = DPLL_SSC_REF_CLK_CHV | | |
cd2d34d9 | 7215 | DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS; |
03ed5cbf VS |
7216 | if (crtc->pipe != PIPE_A) |
7217 | pipe_config->dpll_hw_state.dpll |= DPLL_INTEGRATED_CRI_CLK_VLV; | |
7218 | ||
cd2d34d9 | 7219 | /* DPLL not used with DSI, but still need the rest set up */ |
187a1c07 | 7220 | if (!pipe_config->has_dsi_encoder) |
cd2d34d9 | 7221 | pipe_config->dpll_hw_state.dpll |= DPLL_VCO_ENABLE; |
bdd4b6a6 | 7222 | |
03ed5cbf VS |
7223 | pipe_config->dpll_hw_state.dpll_md = |
7224 | (pipe_config->pixel_multiplier - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
bdd4b6a6 DV |
7225 | } |
7226 | ||
d288f65f | 7227 | static void vlv_prepare_pll(struct intel_crtc *crtc, |
5cec258b | 7228 | const struct intel_crtc_state *pipe_config) |
a0c4da24 | 7229 | { |
f47709a9 | 7230 | struct drm_device *dev = crtc->base.dev; |
a0c4da24 | 7231 | struct drm_i915_private *dev_priv = dev->dev_private; |
cd2d34d9 | 7232 | enum pipe pipe = crtc->pipe; |
bdd4b6a6 | 7233 | u32 mdiv; |
a0c4da24 | 7234 | u32 bestn, bestm1, bestm2, bestp1, bestp2; |
bdd4b6a6 | 7235 | u32 coreclk, reg_val; |
a0c4da24 | 7236 | |
cd2d34d9 VS |
7237 | /* Enable Refclk */ |
7238 | I915_WRITE(DPLL(pipe), | |
7239 | pipe_config->dpll_hw_state.dpll & | |
7240 | ~(DPLL_VCO_ENABLE | DPLL_EXT_BUFFER_ENABLE_VLV)); | |
7241 | ||
7242 | /* No need to actually set up the DPLL with DSI */ | |
7243 | if ((pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE) == 0) | |
7244 | return; | |
7245 | ||
a580516d | 7246 | mutex_lock(&dev_priv->sb_lock); |
09153000 | 7247 | |
d288f65f VS |
7248 | bestn = pipe_config->dpll.n; |
7249 | bestm1 = pipe_config->dpll.m1; | |
7250 | bestm2 = pipe_config->dpll.m2; | |
7251 | bestp1 = pipe_config->dpll.p1; | |
7252 | bestp2 = pipe_config->dpll.p2; | |
a0c4da24 | 7253 | |
89b667f8 JB |
7254 | /* See eDP HDMI DPIO driver vbios notes doc */ |
7255 | ||
7256 | /* PLL B needs special handling */ | |
bdd4b6a6 | 7257 | if (pipe == PIPE_B) |
5e69f97f | 7258 | vlv_pllb_recal_opamp(dev_priv, pipe); |
89b667f8 JB |
7259 | |
7260 | /* Set up Tx target for periodic Rcomp update */ | |
ab3c759a | 7261 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9_BCAST, 0x0100000f); |
89b667f8 JB |
7262 | |
7263 | /* Disable target IRef on PLL */ | |
ab3c759a | 7264 | reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW8(pipe)); |
89b667f8 | 7265 | reg_val &= 0x00ffffff; |
ab3c759a | 7266 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW8(pipe), reg_val); |
89b667f8 JB |
7267 | |
7268 | /* Disable fast lock */ | |
ab3c759a | 7269 | vlv_dpio_write(dev_priv, pipe, VLV_CMN_DW0, 0x610); |
89b667f8 JB |
7270 | |
7271 | /* Set idtafcrecal before PLL is enabled */ | |
a0c4da24 JB |
7272 | mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK)); |
7273 | mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT)); | |
7274 | mdiv |= ((bestn << DPIO_N_SHIFT)); | |
a0c4da24 | 7275 | mdiv |= (1 << DPIO_K_SHIFT); |
7df5080b JB |
7276 | |
7277 | /* | |
7278 | * Post divider depends on pixel clock rate, DAC vs digital (and LVDS, | |
7279 | * but we don't support that). | |
7280 | * Note: don't use the DAC post divider as it seems unstable. | |
7281 | */ | |
7282 | mdiv |= (DPIO_POST_DIV_HDMIDP << DPIO_POST_DIV_SHIFT); | |
ab3c759a | 7283 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv); |
a0c4da24 | 7284 | |
a0c4da24 | 7285 | mdiv |= DPIO_ENABLE_CALIBRATION; |
ab3c759a | 7286 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv); |
a0c4da24 | 7287 | |
89b667f8 | 7288 | /* Set HBR and RBR LPF coefficients */ |
d288f65f | 7289 | if (pipe_config->port_clock == 162000 || |
409ee761 ACO |
7290 | intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG) || |
7291 | intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) | |
ab3c759a | 7292 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe), |
885b0120 | 7293 | 0x009f0003); |
89b667f8 | 7294 | else |
ab3c759a | 7295 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe), |
89b667f8 JB |
7296 | 0x00d0000f); |
7297 | ||
681a8504 | 7298 | if (pipe_config->has_dp_encoder) { |
89b667f8 | 7299 | /* Use SSC source */ |
bdd4b6a6 | 7300 | if (pipe == PIPE_A) |
ab3c759a | 7301 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe), |
89b667f8 JB |
7302 | 0x0df40000); |
7303 | else | |
ab3c759a | 7304 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe), |
89b667f8 JB |
7305 | 0x0df70000); |
7306 | } else { /* HDMI or VGA */ | |
7307 | /* Use bend source */ | |
bdd4b6a6 | 7308 | if (pipe == PIPE_A) |
ab3c759a | 7309 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe), |
89b667f8 JB |
7310 | 0x0df70000); |
7311 | else | |
ab3c759a | 7312 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe), |
89b667f8 JB |
7313 | 0x0df40000); |
7314 | } | |
a0c4da24 | 7315 | |
ab3c759a | 7316 | coreclk = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW7(pipe)); |
89b667f8 | 7317 | coreclk = (coreclk & 0x0000ff00) | 0x01c00000; |
409ee761 ACO |
7318 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || |
7319 | intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) | |
89b667f8 | 7320 | coreclk |= 0x01000000; |
ab3c759a | 7321 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW7(pipe), coreclk); |
a0c4da24 | 7322 | |
ab3c759a | 7323 | vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW11(pipe), 0x87871000); |
a580516d | 7324 | mutex_unlock(&dev_priv->sb_lock); |
a0c4da24 JB |
7325 | } |
7326 | ||
d288f65f | 7327 | static void chv_prepare_pll(struct intel_crtc *crtc, |
5cec258b | 7328 | const struct intel_crtc_state *pipe_config) |
9d556c99 CML |
7329 | { |
7330 | struct drm_device *dev = crtc->base.dev; | |
7331 | struct drm_i915_private *dev_priv = dev->dev_private; | |
cd2d34d9 | 7332 | enum pipe pipe = crtc->pipe; |
9d556c99 | 7333 | enum dpio_channel port = vlv_pipe_to_channel(pipe); |
9cbe40c1 | 7334 | u32 loopfilter, tribuf_calcntr; |
9d556c99 | 7335 | u32 bestn, bestm1, bestm2, bestp1, bestp2, bestm2_frac; |
a945ce7e | 7336 | u32 dpio_val; |
9cbe40c1 | 7337 | int vco; |
9d556c99 | 7338 | |
cd2d34d9 VS |
7339 | /* Enable Refclk and SSC */ |
7340 | I915_WRITE(DPLL(pipe), | |
7341 | pipe_config->dpll_hw_state.dpll & ~DPLL_VCO_ENABLE); | |
7342 | ||
7343 | /* No need to actually set up the DPLL with DSI */ | |
7344 | if ((pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE) == 0) | |
7345 | return; | |
7346 | ||
d288f65f VS |
7347 | bestn = pipe_config->dpll.n; |
7348 | bestm2_frac = pipe_config->dpll.m2 & 0x3fffff; | |
7349 | bestm1 = pipe_config->dpll.m1; | |
7350 | bestm2 = pipe_config->dpll.m2 >> 22; | |
7351 | bestp1 = pipe_config->dpll.p1; | |
7352 | bestp2 = pipe_config->dpll.p2; | |
9cbe40c1 | 7353 | vco = pipe_config->dpll.vco; |
a945ce7e | 7354 | dpio_val = 0; |
9cbe40c1 | 7355 | loopfilter = 0; |
9d556c99 | 7356 | |
a580516d | 7357 | mutex_lock(&dev_priv->sb_lock); |
9d556c99 | 7358 | |
9d556c99 CML |
7359 | /* p1 and p2 divider */ |
7360 | vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW13(port), | |
7361 | 5 << DPIO_CHV_S1_DIV_SHIFT | | |
7362 | bestp1 << DPIO_CHV_P1_DIV_SHIFT | | |
7363 | bestp2 << DPIO_CHV_P2_DIV_SHIFT | | |
7364 | 1 << DPIO_CHV_K_DIV_SHIFT); | |
7365 | ||
7366 | /* Feedback post-divider - m2 */ | |
7367 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW0(port), bestm2); | |
7368 | ||
7369 | /* Feedback refclk divider - n and m1 */ | |
7370 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW1(port), | |
7371 | DPIO_CHV_M1_DIV_BY_2 | | |
7372 | 1 << DPIO_CHV_N_DIV_SHIFT); | |
7373 | ||
7374 | /* M2 fraction division */ | |
25a25dfc | 7375 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW2(port), bestm2_frac); |
9d556c99 CML |
7376 | |
7377 | /* M2 fraction division enable */ | |
a945ce7e VP |
7378 | dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW3(port)); |
7379 | dpio_val &= ~(DPIO_CHV_FEEDFWD_GAIN_MASK | DPIO_CHV_FRAC_DIV_EN); | |
7380 | dpio_val |= (2 << DPIO_CHV_FEEDFWD_GAIN_SHIFT); | |
7381 | if (bestm2_frac) | |
7382 | dpio_val |= DPIO_CHV_FRAC_DIV_EN; | |
7383 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW3(port), dpio_val); | |
9d556c99 | 7384 | |
de3a0fde VP |
7385 | /* Program digital lock detect threshold */ |
7386 | dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW9(port)); | |
7387 | dpio_val &= ~(DPIO_CHV_INT_LOCK_THRESHOLD_MASK | | |
7388 | DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE); | |
7389 | dpio_val |= (0x5 << DPIO_CHV_INT_LOCK_THRESHOLD_SHIFT); | |
7390 | if (!bestm2_frac) | |
7391 | dpio_val |= DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE; | |
7392 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW9(port), dpio_val); | |
7393 | ||
9d556c99 | 7394 | /* Loop filter */ |
9cbe40c1 VP |
7395 | if (vco == 5400000) { |
7396 | loopfilter |= (0x3 << DPIO_CHV_PROP_COEFF_SHIFT); | |
7397 | loopfilter |= (0x8 << DPIO_CHV_INT_COEFF_SHIFT); | |
7398 | loopfilter |= (0x1 << DPIO_CHV_GAIN_CTRL_SHIFT); | |
7399 | tribuf_calcntr = 0x9; | |
7400 | } else if (vco <= 6200000) { | |
7401 | loopfilter |= (0x5 << DPIO_CHV_PROP_COEFF_SHIFT); | |
7402 | loopfilter |= (0xB << DPIO_CHV_INT_COEFF_SHIFT); | |
7403 | loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT); | |
7404 | tribuf_calcntr = 0x9; | |
7405 | } else if (vco <= 6480000) { | |
7406 | loopfilter |= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT); | |
7407 | loopfilter |= (0x9 << DPIO_CHV_INT_COEFF_SHIFT); | |
7408 | loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT); | |
7409 | tribuf_calcntr = 0x8; | |
7410 | } else { | |
7411 | /* Not supported. Apply the same limits as in the max case */ | |
7412 | loopfilter |= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT); | |
7413 | loopfilter |= (0x9 << DPIO_CHV_INT_COEFF_SHIFT); | |
7414 | loopfilter |= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT); | |
7415 | tribuf_calcntr = 0; | |
7416 | } | |
9d556c99 CML |
7417 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW6(port), loopfilter); |
7418 | ||
968040b2 | 7419 | dpio_val = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW8(port)); |
9cbe40c1 VP |
7420 | dpio_val &= ~DPIO_CHV_TDC_TARGET_CNT_MASK; |
7421 | dpio_val |= (tribuf_calcntr << DPIO_CHV_TDC_TARGET_CNT_SHIFT); | |
7422 | vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW8(port), dpio_val); | |
7423 | ||
9d556c99 CML |
7424 | /* AFC Recal */ |
7425 | vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), | |
7426 | vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port)) | | |
7427 | DPIO_AFC_RECAL); | |
7428 | ||
a580516d | 7429 | mutex_unlock(&dev_priv->sb_lock); |
9d556c99 CML |
7430 | } |
7431 | ||
d288f65f VS |
7432 | /** |
7433 | * vlv_force_pll_on - forcibly enable just the PLL | |
7434 | * @dev_priv: i915 private structure | |
7435 | * @pipe: pipe PLL to enable | |
7436 | * @dpll: PLL configuration | |
7437 | * | |
7438 | * Enable the PLL for @pipe using the supplied @dpll config. To be used | |
7439 | * in cases where we need the PLL enabled even when @pipe is not going to | |
7440 | * be enabled. | |
7441 | */ | |
3f36b937 TU |
7442 | int vlv_force_pll_on(struct drm_device *dev, enum pipe pipe, |
7443 | const struct dpll *dpll) | |
d288f65f VS |
7444 | { |
7445 | struct intel_crtc *crtc = | |
7446 | to_intel_crtc(intel_get_crtc_for_pipe(dev, pipe)); | |
3f36b937 TU |
7447 | struct intel_crtc_state *pipe_config; |
7448 | ||
7449 | pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL); | |
7450 | if (!pipe_config) | |
7451 | return -ENOMEM; | |
7452 | ||
7453 | pipe_config->base.crtc = &crtc->base; | |
7454 | pipe_config->pixel_multiplier = 1; | |
7455 | pipe_config->dpll = *dpll; | |
d288f65f VS |
7456 | |
7457 | if (IS_CHERRYVIEW(dev)) { | |
3f36b937 TU |
7458 | chv_compute_dpll(crtc, pipe_config); |
7459 | chv_prepare_pll(crtc, pipe_config); | |
7460 | chv_enable_pll(crtc, pipe_config); | |
d288f65f | 7461 | } else { |
3f36b937 TU |
7462 | vlv_compute_dpll(crtc, pipe_config); |
7463 | vlv_prepare_pll(crtc, pipe_config); | |
7464 | vlv_enable_pll(crtc, pipe_config); | |
d288f65f | 7465 | } |
3f36b937 TU |
7466 | |
7467 | kfree(pipe_config); | |
7468 | ||
7469 | return 0; | |
d288f65f VS |
7470 | } |
7471 | ||
7472 | /** | |
7473 | * vlv_force_pll_off - forcibly disable just the PLL | |
7474 | * @dev_priv: i915 private structure | |
7475 | * @pipe: pipe PLL to disable | |
7476 | * | |
7477 | * Disable the PLL for @pipe. To be used in cases where we need | |
7478 | * the PLL enabled even when @pipe is not going to be enabled. | |
7479 | */ | |
7480 | void vlv_force_pll_off(struct drm_device *dev, enum pipe pipe) | |
7481 | { | |
7482 | if (IS_CHERRYVIEW(dev)) | |
7483 | chv_disable_pll(to_i915(dev), pipe); | |
7484 | else | |
7485 | vlv_disable_pll(to_i915(dev), pipe); | |
7486 | } | |
7487 | ||
251ac862 DV |
7488 | static void i9xx_compute_dpll(struct intel_crtc *crtc, |
7489 | struct intel_crtc_state *crtc_state, | |
ceb41007 | 7490 | intel_clock_t *reduced_clock) |
eb1cbe48 | 7491 | { |
f47709a9 | 7492 | struct drm_device *dev = crtc->base.dev; |
eb1cbe48 | 7493 | struct drm_i915_private *dev_priv = dev->dev_private; |
eb1cbe48 DV |
7494 | u32 dpll; |
7495 | bool is_sdvo; | |
190f68c5 | 7496 | struct dpll *clock = &crtc_state->dpll; |
eb1cbe48 | 7497 | |
190f68c5 | 7498 | i9xx_update_pll_dividers(crtc, crtc_state, reduced_clock); |
2a8f64ca | 7499 | |
a93e255f ACO |
7500 | is_sdvo = intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_SDVO) || |
7501 | intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_HDMI); | |
eb1cbe48 DV |
7502 | |
7503 | dpll = DPLL_VGA_MODE_DIS; | |
7504 | ||
a93e255f | 7505 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) |
eb1cbe48 DV |
7506 | dpll |= DPLLB_MODE_LVDS; |
7507 | else | |
7508 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
6cc5f341 | 7509 | |
ef1b460d | 7510 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) { |
190f68c5 | 7511 | dpll |= (crtc_state->pixel_multiplier - 1) |
198a037f | 7512 | << SDVO_MULTIPLIER_SHIFT_HIRES; |
eb1cbe48 | 7513 | } |
198a037f DV |
7514 | |
7515 | if (is_sdvo) | |
4a33e48d | 7516 | dpll |= DPLL_SDVO_HIGH_SPEED; |
198a037f | 7517 | |
190f68c5 | 7518 | if (crtc_state->has_dp_encoder) |
4a33e48d | 7519 | dpll |= DPLL_SDVO_HIGH_SPEED; |
eb1cbe48 DV |
7520 | |
7521 | /* compute bitmask from p1 value */ | |
7522 | if (IS_PINEVIEW(dev)) | |
7523 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW; | |
7524 | else { | |
7525 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
7526 | if (IS_G4X(dev) && reduced_clock) | |
7527 | dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
7528 | } | |
7529 | switch (clock->p2) { | |
7530 | case 5: | |
7531 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
7532 | break; | |
7533 | case 7: | |
7534 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
7535 | break; | |
7536 | case 10: | |
7537 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
7538 | break; | |
7539 | case 14: | |
7540 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
7541 | break; | |
7542 | } | |
7543 | if (INTEL_INFO(dev)->gen >= 4) | |
7544 | dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT); | |
7545 | ||
190f68c5 | 7546 | if (crtc_state->sdvo_tv_clock) |
eb1cbe48 | 7547 | dpll |= PLL_REF_INPUT_TVCLKINBC; |
a93e255f | 7548 | else if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS) && |
ceb41007 | 7549 | intel_panel_use_ssc(dev_priv)) |
eb1cbe48 DV |
7550 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
7551 | else | |
7552 | dpll |= PLL_REF_INPUT_DREFCLK; | |
7553 | ||
7554 | dpll |= DPLL_VCO_ENABLE; | |
190f68c5 | 7555 | crtc_state->dpll_hw_state.dpll = dpll; |
8bcc2795 | 7556 | |
eb1cbe48 | 7557 | if (INTEL_INFO(dev)->gen >= 4) { |
190f68c5 | 7558 | u32 dpll_md = (crtc_state->pixel_multiplier - 1) |
ef1b460d | 7559 | << DPLL_MD_UDI_MULTIPLIER_SHIFT; |
190f68c5 | 7560 | crtc_state->dpll_hw_state.dpll_md = dpll_md; |
eb1cbe48 DV |
7561 | } |
7562 | } | |
7563 | ||
251ac862 DV |
7564 | static void i8xx_compute_dpll(struct intel_crtc *crtc, |
7565 | struct intel_crtc_state *crtc_state, | |
ceb41007 | 7566 | intel_clock_t *reduced_clock) |
eb1cbe48 | 7567 | { |
f47709a9 | 7568 | struct drm_device *dev = crtc->base.dev; |
eb1cbe48 | 7569 | struct drm_i915_private *dev_priv = dev->dev_private; |
eb1cbe48 | 7570 | u32 dpll; |
190f68c5 | 7571 | struct dpll *clock = &crtc_state->dpll; |
eb1cbe48 | 7572 | |
190f68c5 | 7573 | i9xx_update_pll_dividers(crtc, crtc_state, reduced_clock); |
2a8f64ca | 7574 | |
eb1cbe48 DV |
7575 | dpll = DPLL_VGA_MODE_DIS; |
7576 | ||
a93e255f | 7577 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) { |
eb1cbe48 DV |
7578 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
7579 | } else { | |
7580 | if (clock->p1 == 2) | |
7581 | dpll |= PLL_P1_DIVIDE_BY_TWO; | |
7582 | else | |
7583 | dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
7584 | if (clock->p2 == 4) | |
7585 | dpll |= PLL_P2_DIVIDE_BY_4; | |
7586 | } | |
7587 | ||
a93e255f | 7588 | if (!IS_I830(dev) && intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_DVO)) |
4a33e48d DV |
7589 | dpll |= DPLL_DVO_2X_MODE; |
7590 | ||
a93e255f | 7591 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS) && |
ceb41007 | 7592 | intel_panel_use_ssc(dev_priv)) |
eb1cbe48 DV |
7593 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
7594 | else | |
7595 | dpll |= PLL_REF_INPUT_DREFCLK; | |
7596 | ||
7597 | dpll |= DPLL_VCO_ENABLE; | |
190f68c5 | 7598 | crtc_state->dpll_hw_state.dpll = dpll; |
eb1cbe48 DV |
7599 | } |
7600 | ||
8a654f3b | 7601 | static void intel_set_pipe_timings(struct intel_crtc *intel_crtc) |
b0e77b9c PZ |
7602 | { |
7603 | struct drm_device *dev = intel_crtc->base.dev; | |
7604 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7605 | enum pipe pipe = intel_crtc->pipe; | |
6e3c9717 | 7606 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
7c5f93b0 | 7607 | const struct drm_display_mode *adjusted_mode = &intel_crtc->config->base.adjusted_mode; |
1caea6e9 VS |
7608 | uint32_t crtc_vtotal, crtc_vblank_end; |
7609 | int vsyncshift = 0; | |
4d8a62ea DV |
7610 | |
7611 | /* We need to be careful not to changed the adjusted mode, for otherwise | |
7612 | * the hw state checker will get angry at the mismatch. */ | |
7613 | crtc_vtotal = adjusted_mode->crtc_vtotal; | |
7614 | crtc_vblank_end = adjusted_mode->crtc_vblank_end; | |
b0e77b9c | 7615 | |
609aeaca | 7616 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { |
b0e77b9c | 7617 | /* the chip adds 2 halflines automatically */ |
4d8a62ea DV |
7618 | crtc_vtotal -= 1; |
7619 | crtc_vblank_end -= 1; | |
609aeaca | 7620 | |
409ee761 | 7621 | if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_SDVO)) |
609aeaca VS |
7622 | vsyncshift = (adjusted_mode->crtc_htotal - 1) / 2; |
7623 | else | |
7624 | vsyncshift = adjusted_mode->crtc_hsync_start - | |
7625 | adjusted_mode->crtc_htotal / 2; | |
1caea6e9 VS |
7626 | if (vsyncshift < 0) |
7627 | vsyncshift += adjusted_mode->crtc_htotal; | |
b0e77b9c PZ |
7628 | } |
7629 | ||
7630 | if (INTEL_INFO(dev)->gen > 3) | |
fe2b8f9d | 7631 | I915_WRITE(VSYNCSHIFT(cpu_transcoder), vsyncshift); |
b0e77b9c | 7632 | |
fe2b8f9d | 7633 | I915_WRITE(HTOTAL(cpu_transcoder), |
b0e77b9c PZ |
7634 | (adjusted_mode->crtc_hdisplay - 1) | |
7635 | ((adjusted_mode->crtc_htotal - 1) << 16)); | |
fe2b8f9d | 7636 | I915_WRITE(HBLANK(cpu_transcoder), |
b0e77b9c PZ |
7637 | (adjusted_mode->crtc_hblank_start - 1) | |
7638 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); | |
fe2b8f9d | 7639 | I915_WRITE(HSYNC(cpu_transcoder), |
b0e77b9c PZ |
7640 | (adjusted_mode->crtc_hsync_start - 1) | |
7641 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); | |
7642 | ||
fe2b8f9d | 7643 | I915_WRITE(VTOTAL(cpu_transcoder), |
b0e77b9c | 7644 | (adjusted_mode->crtc_vdisplay - 1) | |
4d8a62ea | 7645 | ((crtc_vtotal - 1) << 16)); |
fe2b8f9d | 7646 | I915_WRITE(VBLANK(cpu_transcoder), |
b0e77b9c | 7647 | (adjusted_mode->crtc_vblank_start - 1) | |
4d8a62ea | 7648 | ((crtc_vblank_end - 1) << 16)); |
fe2b8f9d | 7649 | I915_WRITE(VSYNC(cpu_transcoder), |
b0e77b9c PZ |
7650 | (adjusted_mode->crtc_vsync_start - 1) | |
7651 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); | |
7652 | ||
b5e508d4 PZ |
7653 | /* Workaround: when the EDP input selection is B, the VTOTAL_B must be |
7654 | * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is | |
7655 | * documented on the DDI_FUNC_CTL register description, EDP Input Select | |
7656 | * bits. */ | |
7657 | if (IS_HASWELL(dev) && cpu_transcoder == TRANSCODER_EDP && | |
7658 | (pipe == PIPE_B || pipe == PIPE_C)) | |
7659 | I915_WRITE(VTOTAL(pipe), I915_READ(VTOTAL(cpu_transcoder))); | |
7660 | ||
bc58be60 JN |
7661 | } |
7662 | ||
7663 | static void intel_set_pipe_src_size(struct intel_crtc *intel_crtc) | |
7664 | { | |
7665 | struct drm_device *dev = intel_crtc->base.dev; | |
7666 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7667 | enum pipe pipe = intel_crtc->pipe; | |
7668 | ||
b0e77b9c PZ |
7669 | /* pipesrc controls the size that is scaled from, which should |
7670 | * always be the user's requested size. | |
7671 | */ | |
7672 | I915_WRITE(PIPESRC(pipe), | |
6e3c9717 ACO |
7673 | ((intel_crtc->config->pipe_src_w - 1) << 16) | |
7674 | (intel_crtc->config->pipe_src_h - 1)); | |
b0e77b9c PZ |
7675 | } |
7676 | ||
1bd1bd80 | 7677 | static void intel_get_pipe_timings(struct intel_crtc *crtc, |
5cec258b | 7678 | struct intel_crtc_state *pipe_config) |
1bd1bd80 DV |
7679 | { |
7680 | struct drm_device *dev = crtc->base.dev; | |
7681 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7682 | enum transcoder cpu_transcoder = pipe_config->cpu_transcoder; | |
7683 | uint32_t tmp; | |
7684 | ||
7685 | tmp = I915_READ(HTOTAL(cpu_transcoder)); | |
2d112de7 ACO |
7686 | pipe_config->base.adjusted_mode.crtc_hdisplay = (tmp & 0xffff) + 1; |
7687 | pipe_config->base.adjusted_mode.crtc_htotal = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 | 7688 | tmp = I915_READ(HBLANK(cpu_transcoder)); |
2d112de7 ACO |
7689 | pipe_config->base.adjusted_mode.crtc_hblank_start = (tmp & 0xffff) + 1; |
7690 | pipe_config->base.adjusted_mode.crtc_hblank_end = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 | 7691 | tmp = I915_READ(HSYNC(cpu_transcoder)); |
2d112de7 ACO |
7692 | pipe_config->base.adjusted_mode.crtc_hsync_start = (tmp & 0xffff) + 1; |
7693 | pipe_config->base.adjusted_mode.crtc_hsync_end = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 DV |
7694 | |
7695 | tmp = I915_READ(VTOTAL(cpu_transcoder)); | |
2d112de7 ACO |
7696 | pipe_config->base.adjusted_mode.crtc_vdisplay = (tmp & 0xffff) + 1; |
7697 | pipe_config->base.adjusted_mode.crtc_vtotal = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 | 7698 | tmp = I915_READ(VBLANK(cpu_transcoder)); |
2d112de7 ACO |
7699 | pipe_config->base.adjusted_mode.crtc_vblank_start = (tmp & 0xffff) + 1; |
7700 | pipe_config->base.adjusted_mode.crtc_vblank_end = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 | 7701 | tmp = I915_READ(VSYNC(cpu_transcoder)); |
2d112de7 ACO |
7702 | pipe_config->base.adjusted_mode.crtc_vsync_start = (tmp & 0xffff) + 1; |
7703 | pipe_config->base.adjusted_mode.crtc_vsync_end = ((tmp >> 16) & 0xffff) + 1; | |
1bd1bd80 DV |
7704 | |
7705 | if (I915_READ(PIPECONF(cpu_transcoder)) & PIPECONF_INTERLACE_MASK) { | |
2d112de7 ACO |
7706 | pipe_config->base.adjusted_mode.flags |= DRM_MODE_FLAG_INTERLACE; |
7707 | pipe_config->base.adjusted_mode.crtc_vtotal += 1; | |
7708 | pipe_config->base.adjusted_mode.crtc_vblank_end += 1; | |
1bd1bd80 | 7709 | } |
bc58be60 JN |
7710 | } |
7711 | ||
7712 | static void intel_get_pipe_src_size(struct intel_crtc *crtc, | |
7713 | struct intel_crtc_state *pipe_config) | |
7714 | { | |
7715 | struct drm_device *dev = crtc->base.dev; | |
7716 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7717 | u32 tmp; | |
1bd1bd80 DV |
7718 | |
7719 | tmp = I915_READ(PIPESRC(crtc->pipe)); | |
37327abd VS |
7720 | pipe_config->pipe_src_h = (tmp & 0xffff) + 1; |
7721 | pipe_config->pipe_src_w = ((tmp >> 16) & 0xffff) + 1; | |
7722 | ||
2d112de7 ACO |
7723 | pipe_config->base.mode.vdisplay = pipe_config->pipe_src_h; |
7724 | pipe_config->base.mode.hdisplay = pipe_config->pipe_src_w; | |
1bd1bd80 DV |
7725 | } |
7726 | ||
f6a83288 | 7727 | void intel_mode_from_pipe_config(struct drm_display_mode *mode, |
5cec258b | 7728 | struct intel_crtc_state *pipe_config) |
babea61d | 7729 | { |
2d112de7 ACO |
7730 | mode->hdisplay = pipe_config->base.adjusted_mode.crtc_hdisplay; |
7731 | mode->htotal = pipe_config->base.adjusted_mode.crtc_htotal; | |
7732 | mode->hsync_start = pipe_config->base.adjusted_mode.crtc_hsync_start; | |
7733 | mode->hsync_end = pipe_config->base.adjusted_mode.crtc_hsync_end; | |
babea61d | 7734 | |
2d112de7 ACO |
7735 | mode->vdisplay = pipe_config->base.adjusted_mode.crtc_vdisplay; |
7736 | mode->vtotal = pipe_config->base.adjusted_mode.crtc_vtotal; | |
7737 | mode->vsync_start = pipe_config->base.adjusted_mode.crtc_vsync_start; | |
7738 | mode->vsync_end = pipe_config->base.adjusted_mode.crtc_vsync_end; | |
babea61d | 7739 | |
2d112de7 | 7740 | mode->flags = pipe_config->base.adjusted_mode.flags; |
cd13f5ab | 7741 | mode->type = DRM_MODE_TYPE_DRIVER; |
babea61d | 7742 | |
2d112de7 ACO |
7743 | mode->clock = pipe_config->base.adjusted_mode.crtc_clock; |
7744 | mode->flags |= pipe_config->base.adjusted_mode.flags; | |
cd13f5ab ML |
7745 | |
7746 | mode->hsync = drm_mode_hsync(mode); | |
7747 | mode->vrefresh = drm_mode_vrefresh(mode); | |
7748 | drm_mode_set_name(mode); | |
babea61d JB |
7749 | } |
7750 | ||
84b046f3 DV |
7751 | static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc) |
7752 | { | |
7753 | struct drm_device *dev = intel_crtc->base.dev; | |
7754 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7755 | uint32_t pipeconf; | |
7756 | ||
9f11a9e4 | 7757 | pipeconf = 0; |
84b046f3 | 7758 | |
b6b5d049 VS |
7759 | if ((intel_crtc->pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || |
7760 | (intel_crtc->pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
7761 | pipeconf |= I915_READ(PIPECONF(intel_crtc->pipe)) & PIPECONF_ENABLE; | |
67c72a12 | 7762 | |
6e3c9717 | 7763 | if (intel_crtc->config->double_wide) |
cf532bb2 | 7764 | pipeconf |= PIPECONF_DOUBLE_WIDE; |
84b046f3 | 7765 | |
ff9ce46e | 7766 | /* only g4x and later have fancy bpc/dither controls */ |
666a4537 | 7767 | if (IS_G4X(dev) || IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { |
ff9ce46e | 7768 | /* Bspec claims that we can't use dithering for 30bpp pipes. */ |
6e3c9717 | 7769 | if (intel_crtc->config->dither && intel_crtc->config->pipe_bpp != 30) |
ff9ce46e | 7770 | pipeconf |= PIPECONF_DITHER_EN | |
84b046f3 | 7771 | PIPECONF_DITHER_TYPE_SP; |
84b046f3 | 7772 | |
6e3c9717 | 7773 | switch (intel_crtc->config->pipe_bpp) { |
ff9ce46e DV |
7774 | case 18: |
7775 | pipeconf |= PIPECONF_6BPC; | |
7776 | break; | |
7777 | case 24: | |
7778 | pipeconf |= PIPECONF_8BPC; | |
7779 | break; | |
7780 | case 30: | |
7781 | pipeconf |= PIPECONF_10BPC; | |
7782 | break; | |
7783 | default: | |
7784 | /* Case prevented by intel_choose_pipe_bpp_dither. */ | |
7785 | BUG(); | |
84b046f3 DV |
7786 | } |
7787 | } | |
7788 | ||
7789 | if (HAS_PIPE_CXSR(dev)) { | |
7790 | if (intel_crtc->lowfreq_avail) { | |
7791 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); | |
7792 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; | |
7793 | } else { | |
7794 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); | |
84b046f3 DV |
7795 | } |
7796 | } | |
7797 | ||
6e3c9717 | 7798 | if (intel_crtc->config->base.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) { |
efc2cfff | 7799 | if (INTEL_INFO(dev)->gen < 4 || |
409ee761 | 7800 | intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_SDVO)) |
efc2cfff VS |
7801 | pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; |
7802 | else | |
7803 | pipeconf |= PIPECONF_INTERLACE_W_SYNC_SHIFT; | |
7804 | } else | |
84b046f3 DV |
7805 | pipeconf |= PIPECONF_PROGRESSIVE; |
7806 | ||
666a4537 WB |
7807 | if ((IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) && |
7808 | intel_crtc->config->limited_color_range) | |
9f11a9e4 | 7809 | pipeconf |= PIPECONF_COLOR_RANGE_SELECT; |
9c8e09b7 | 7810 | |
84b046f3 DV |
7811 | I915_WRITE(PIPECONF(intel_crtc->pipe), pipeconf); |
7812 | POSTING_READ(PIPECONF(intel_crtc->pipe)); | |
7813 | } | |
7814 | ||
81c97f52 | 7815 | static int i8xx_crtc_compute_clock(struct intel_crtc *crtc, |
190f68c5 | 7816 | struct intel_crtc_state *crtc_state) |
79e53945 | 7817 | { |
c7653199 | 7818 | struct drm_device *dev = crtc->base.dev; |
79e53945 | 7819 | struct drm_i915_private *dev_priv = dev->dev_private; |
d4906093 | 7820 | const intel_limit_t *limit; |
81c97f52 | 7821 | int refclk = 48000; |
79e53945 | 7822 | |
dd3cd74a ACO |
7823 | memset(&crtc_state->dpll_hw_state, 0, |
7824 | sizeof(crtc_state->dpll_hw_state)); | |
7825 | ||
81c97f52 ACO |
7826 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) { |
7827 | if (intel_panel_use_ssc(dev_priv)) { | |
7828 | refclk = dev_priv->vbt.lvds_ssc_freq; | |
7829 | DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk); | |
7830 | } | |
43565a06 | 7831 | |
81c97f52 ACO |
7832 | limit = &intel_limits_i8xx_lvds; |
7833 | } else if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_DVO)) { | |
7834 | limit = &intel_limits_i8xx_dvo; | |
7835 | } else { | |
7836 | limit = &intel_limits_i8xx_dac; | |
79e53945 JB |
7837 | } |
7838 | ||
81c97f52 ACO |
7839 | if (!crtc_state->clock_set && |
7840 | !i9xx_find_best_dpll(limit, crtc_state, crtc_state->port_clock, | |
7841 | refclk, NULL, &crtc_state->dpll)) { | |
7842 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
7843 | return -EINVAL; | |
7844 | } | |
79e53945 | 7845 | |
81c97f52 ACO |
7846 | i8xx_compute_dpll(crtc, crtc_state, NULL); |
7847 | ||
7848 | return 0; | |
7849 | } | |
7850 | ||
19ec6693 ACO |
7851 | static int g4x_crtc_compute_clock(struct intel_crtc *crtc, |
7852 | struct intel_crtc_state *crtc_state) | |
7853 | { | |
7854 | struct drm_device *dev = crtc->base.dev; | |
7855 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7856 | const intel_limit_t *limit; | |
7857 | int refclk = 96000; | |
7858 | ||
7859 | memset(&crtc_state->dpll_hw_state, 0, | |
7860 | sizeof(crtc_state->dpll_hw_state)); | |
7861 | ||
7862 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) { | |
7863 | if (intel_panel_use_ssc(dev_priv)) { | |
7864 | refclk = dev_priv->vbt.lvds_ssc_freq; | |
7865 | DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk); | |
e9fd1c02 | 7866 | } |
79e53945 | 7867 | |
19ec6693 ACO |
7868 | if (intel_is_dual_link_lvds(dev)) |
7869 | limit = &intel_limits_g4x_dual_channel_lvds; | |
7870 | else | |
7871 | limit = &intel_limits_g4x_single_channel_lvds; | |
7872 | } else if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_HDMI) || | |
7873 | intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_ANALOG)) { | |
7874 | limit = &intel_limits_g4x_hdmi; | |
7875 | } else if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_SDVO)) { | |
7876 | limit = &intel_limits_g4x_sdvo; | |
7877 | } else { | |
7878 | /* The option is for other outputs */ | |
7879 | limit = &intel_limits_i9xx_sdvo; | |
f47709a9 | 7880 | } |
7026d4ac | 7881 | |
19ec6693 ACO |
7882 | if (!crtc_state->clock_set && |
7883 | !g4x_find_best_dpll(limit, crtc_state, crtc_state->port_clock, | |
7884 | refclk, NULL, &crtc_state->dpll)) { | |
7885 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
7886 | return -EINVAL; | |
7887 | } | |
7888 | ||
7889 | i9xx_compute_dpll(crtc, crtc_state, NULL); | |
7890 | ||
7891 | return 0; | |
7892 | } | |
7893 | ||
70e8aa21 ACO |
7894 | static int pnv_crtc_compute_clock(struct intel_crtc *crtc, |
7895 | struct intel_crtc_state *crtc_state) | |
7896 | { | |
7897 | struct drm_device *dev = crtc->base.dev; | |
7898 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7899 | const intel_limit_t *limit; | |
7900 | int refclk = 96000; | |
7901 | ||
7902 | memset(&crtc_state->dpll_hw_state, 0, | |
7903 | sizeof(crtc_state->dpll_hw_state)); | |
7904 | ||
7905 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) { | |
7906 | if (intel_panel_use_ssc(dev_priv)) { | |
7907 | refclk = dev_priv->vbt.lvds_ssc_freq; | |
7908 | DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk); | |
7909 | } | |
7910 | ||
7911 | limit = &intel_limits_pineview_lvds; | |
e9fd1c02 | 7912 | } else { |
70e8aa21 ACO |
7913 | limit = &intel_limits_pineview_sdvo; |
7914 | } | |
7915 | ||
7916 | if (!crtc_state->clock_set && | |
7917 | !pnv_find_best_dpll(limit, crtc_state, crtc_state->port_clock, | |
7918 | refclk, NULL, &crtc_state->dpll)) { | |
7919 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
7920 | return -EINVAL; | |
7921 | } | |
7922 | ||
7923 | i9xx_compute_dpll(crtc, crtc_state, NULL); | |
7924 | ||
7925 | return 0; | |
7926 | } | |
7927 | ||
190f68c5 ACO |
7928 | static int i9xx_crtc_compute_clock(struct intel_crtc *crtc, |
7929 | struct intel_crtc_state *crtc_state) | |
79e53945 | 7930 | { |
c7653199 | 7931 | struct drm_device *dev = crtc->base.dev; |
79e53945 | 7932 | struct drm_i915_private *dev_priv = dev->dev_private; |
d4906093 | 7933 | const intel_limit_t *limit; |
81c97f52 | 7934 | int refclk = 96000; |
79e53945 | 7935 | |
dd3cd74a ACO |
7936 | memset(&crtc_state->dpll_hw_state, 0, |
7937 | sizeof(crtc_state->dpll_hw_state)); | |
7938 | ||
70e8aa21 ACO |
7939 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) { |
7940 | if (intel_panel_use_ssc(dev_priv)) { | |
7941 | refclk = dev_priv->vbt.lvds_ssc_freq; | |
7942 | DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk); | |
7943 | } | |
43565a06 | 7944 | |
70e8aa21 ACO |
7945 | limit = &intel_limits_i9xx_lvds; |
7946 | } else { | |
7947 | limit = &intel_limits_i9xx_sdvo; | |
81c97f52 | 7948 | } |
79e53945 | 7949 | |
70e8aa21 ACO |
7950 | if (!crtc_state->clock_set && |
7951 | !i9xx_find_best_dpll(limit, crtc_state, crtc_state->port_clock, | |
7952 | refclk, NULL, &crtc_state->dpll)) { | |
7953 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
7954 | return -EINVAL; | |
f47709a9 | 7955 | } |
7026d4ac | 7956 | |
81c97f52 | 7957 | i9xx_compute_dpll(crtc, crtc_state, NULL); |
79e53945 | 7958 | |
c8f7a0db | 7959 | return 0; |
f564048e EA |
7960 | } |
7961 | ||
65b3d6a9 ACO |
7962 | static int chv_crtc_compute_clock(struct intel_crtc *crtc, |
7963 | struct intel_crtc_state *crtc_state) | |
7964 | { | |
7965 | int refclk = 100000; | |
7966 | const intel_limit_t *limit = &intel_limits_chv; | |
7967 | ||
7968 | memset(&crtc_state->dpll_hw_state, 0, | |
7969 | sizeof(crtc_state->dpll_hw_state)); | |
7970 | ||
65b3d6a9 ACO |
7971 | if (!crtc_state->clock_set && |
7972 | !chv_find_best_dpll(limit, crtc_state, crtc_state->port_clock, | |
7973 | refclk, NULL, &crtc_state->dpll)) { | |
7974 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
7975 | return -EINVAL; | |
7976 | } | |
7977 | ||
7978 | chv_compute_dpll(crtc, crtc_state); | |
7979 | ||
7980 | return 0; | |
7981 | } | |
7982 | ||
7983 | static int vlv_crtc_compute_clock(struct intel_crtc *crtc, | |
7984 | struct intel_crtc_state *crtc_state) | |
7985 | { | |
7986 | int refclk = 100000; | |
7987 | const intel_limit_t *limit = &intel_limits_vlv; | |
7988 | ||
7989 | memset(&crtc_state->dpll_hw_state, 0, | |
7990 | sizeof(crtc_state->dpll_hw_state)); | |
7991 | ||
65b3d6a9 ACO |
7992 | if (!crtc_state->clock_set && |
7993 | !vlv_find_best_dpll(limit, crtc_state, crtc_state->port_clock, | |
7994 | refclk, NULL, &crtc_state->dpll)) { | |
7995 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
7996 | return -EINVAL; | |
e9fd1c02 | 7997 | } |
79e53945 | 7998 | |
65b3d6a9 ACO |
7999 | vlv_compute_dpll(crtc, crtc_state); |
8000 | ||
c8f7a0db | 8001 | return 0; |
f564048e EA |
8002 | } |
8003 | ||
2fa2fe9a | 8004 | static void i9xx_get_pfit_config(struct intel_crtc *crtc, |
5cec258b | 8005 | struct intel_crtc_state *pipe_config) |
2fa2fe9a DV |
8006 | { |
8007 | struct drm_device *dev = crtc->base.dev; | |
8008 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8009 | uint32_t tmp; | |
8010 | ||
dc9e7dec VS |
8011 | if (INTEL_INFO(dev)->gen <= 3 && (IS_I830(dev) || !IS_MOBILE(dev))) |
8012 | return; | |
8013 | ||
2fa2fe9a | 8014 | tmp = I915_READ(PFIT_CONTROL); |
06922821 DV |
8015 | if (!(tmp & PFIT_ENABLE)) |
8016 | return; | |
2fa2fe9a | 8017 | |
06922821 | 8018 | /* Check whether the pfit is attached to our pipe. */ |
2fa2fe9a DV |
8019 | if (INTEL_INFO(dev)->gen < 4) { |
8020 | if (crtc->pipe != PIPE_B) | |
8021 | return; | |
2fa2fe9a DV |
8022 | } else { |
8023 | if ((tmp & PFIT_PIPE_MASK) != (crtc->pipe << PFIT_PIPE_SHIFT)) | |
8024 | return; | |
8025 | } | |
8026 | ||
06922821 | 8027 | pipe_config->gmch_pfit.control = tmp; |
2fa2fe9a | 8028 | pipe_config->gmch_pfit.pgm_ratios = I915_READ(PFIT_PGM_RATIOS); |
2fa2fe9a DV |
8029 | } |
8030 | ||
acbec814 | 8031 | static void vlv_crtc_clock_get(struct intel_crtc *crtc, |
5cec258b | 8032 | struct intel_crtc_state *pipe_config) |
acbec814 JB |
8033 | { |
8034 | struct drm_device *dev = crtc->base.dev; | |
8035 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8036 | int pipe = pipe_config->cpu_transcoder; | |
8037 | intel_clock_t clock; | |
8038 | u32 mdiv; | |
662c6ecb | 8039 | int refclk = 100000; |
acbec814 | 8040 | |
b521973b VS |
8041 | /* In case of DSI, DPLL will not be used */ |
8042 | if ((pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE) == 0) | |
f573de5a SK |
8043 | return; |
8044 | ||
a580516d | 8045 | mutex_lock(&dev_priv->sb_lock); |
ab3c759a | 8046 | mdiv = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW3(pipe)); |
a580516d | 8047 | mutex_unlock(&dev_priv->sb_lock); |
acbec814 JB |
8048 | |
8049 | clock.m1 = (mdiv >> DPIO_M1DIV_SHIFT) & 7; | |
8050 | clock.m2 = mdiv & DPIO_M2DIV_MASK; | |
8051 | clock.n = (mdiv >> DPIO_N_SHIFT) & 0xf; | |
8052 | clock.p1 = (mdiv >> DPIO_P1_SHIFT) & 7; | |
8053 | clock.p2 = (mdiv >> DPIO_P2_SHIFT) & 0x1f; | |
8054 | ||
dccbea3b | 8055 | pipe_config->port_clock = vlv_calc_dpll_params(refclk, &clock); |
acbec814 JB |
8056 | } |
8057 | ||
5724dbd1 DL |
8058 | static void |
8059 | i9xx_get_initial_plane_config(struct intel_crtc *crtc, | |
8060 | struct intel_initial_plane_config *plane_config) | |
1ad292b5 JB |
8061 | { |
8062 | struct drm_device *dev = crtc->base.dev; | |
8063 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8064 | u32 val, base, offset; | |
8065 | int pipe = crtc->pipe, plane = crtc->plane; | |
8066 | int fourcc, pixel_format; | |
6761dd31 | 8067 | unsigned int aligned_height; |
b113d5ee | 8068 | struct drm_framebuffer *fb; |
1b842c89 | 8069 | struct intel_framebuffer *intel_fb; |
1ad292b5 | 8070 | |
42a7b088 DL |
8071 | val = I915_READ(DSPCNTR(plane)); |
8072 | if (!(val & DISPLAY_PLANE_ENABLE)) | |
8073 | return; | |
8074 | ||
d9806c9f | 8075 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); |
1b842c89 | 8076 | if (!intel_fb) { |
1ad292b5 JB |
8077 | DRM_DEBUG_KMS("failed to alloc fb\n"); |
8078 | return; | |
8079 | } | |
8080 | ||
1b842c89 DL |
8081 | fb = &intel_fb->base; |
8082 | ||
18c5247e DV |
8083 | if (INTEL_INFO(dev)->gen >= 4) { |
8084 | if (val & DISPPLANE_TILED) { | |
49af449b | 8085 | plane_config->tiling = I915_TILING_X; |
18c5247e DV |
8086 | fb->modifier[0] = I915_FORMAT_MOD_X_TILED; |
8087 | } | |
8088 | } | |
1ad292b5 JB |
8089 | |
8090 | pixel_format = val & DISPPLANE_PIXFORMAT_MASK; | |
b35d63fa | 8091 | fourcc = i9xx_format_to_fourcc(pixel_format); |
b113d5ee DL |
8092 | fb->pixel_format = fourcc; |
8093 | fb->bits_per_pixel = drm_format_plane_cpp(fourcc, 0) * 8; | |
1ad292b5 JB |
8094 | |
8095 | if (INTEL_INFO(dev)->gen >= 4) { | |
49af449b | 8096 | if (plane_config->tiling) |
1ad292b5 JB |
8097 | offset = I915_READ(DSPTILEOFF(plane)); |
8098 | else | |
8099 | offset = I915_READ(DSPLINOFF(plane)); | |
8100 | base = I915_READ(DSPSURF(plane)) & 0xfffff000; | |
8101 | } else { | |
8102 | base = I915_READ(DSPADDR(plane)); | |
8103 | } | |
8104 | plane_config->base = base; | |
8105 | ||
8106 | val = I915_READ(PIPESRC(pipe)); | |
b113d5ee DL |
8107 | fb->width = ((val >> 16) & 0xfff) + 1; |
8108 | fb->height = ((val >> 0) & 0xfff) + 1; | |
1ad292b5 JB |
8109 | |
8110 | val = I915_READ(DSPSTRIDE(pipe)); | |
b113d5ee | 8111 | fb->pitches[0] = val & 0xffffffc0; |
1ad292b5 | 8112 | |
b113d5ee | 8113 | aligned_height = intel_fb_align_height(dev, fb->height, |
091df6cb DV |
8114 | fb->pixel_format, |
8115 | fb->modifier[0]); | |
1ad292b5 | 8116 | |
f37b5c2b | 8117 | plane_config->size = fb->pitches[0] * aligned_height; |
1ad292b5 | 8118 | |
2844a921 DL |
8119 | DRM_DEBUG_KMS("pipe/plane %c/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n", |
8120 | pipe_name(pipe), plane, fb->width, fb->height, | |
8121 | fb->bits_per_pixel, base, fb->pitches[0], | |
8122 | plane_config->size); | |
1ad292b5 | 8123 | |
2d14030b | 8124 | plane_config->fb = intel_fb; |
1ad292b5 JB |
8125 | } |
8126 | ||
70b23a98 | 8127 | static void chv_crtc_clock_get(struct intel_crtc *crtc, |
5cec258b | 8128 | struct intel_crtc_state *pipe_config) |
70b23a98 VS |
8129 | { |
8130 | struct drm_device *dev = crtc->base.dev; | |
8131 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8132 | int pipe = pipe_config->cpu_transcoder; | |
8133 | enum dpio_channel port = vlv_pipe_to_channel(pipe); | |
8134 | intel_clock_t clock; | |
0d7b6b11 | 8135 | u32 cmn_dw13, pll_dw0, pll_dw1, pll_dw2, pll_dw3; |
70b23a98 VS |
8136 | int refclk = 100000; |
8137 | ||
b521973b VS |
8138 | /* In case of DSI, DPLL will not be used */ |
8139 | if ((pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE) == 0) | |
8140 | return; | |
8141 | ||
a580516d | 8142 | mutex_lock(&dev_priv->sb_lock); |
70b23a98 VS |
8143 | cmn_dw13 = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW13(port)); |
8144 | pll_dw0 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW0(port)); | |
8145 | pll_dw1 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW1(port)); | |
8146 | pll_dw2 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW2(port)); | |
0d7b6b11 | 8147 | pll_dw3 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW3(port)); |
a580516d | 8148 | mutex_unlock(&dev_priv->sb_lock); |
70b23a98 VS |
8149 | |
8150 | clock.m1 = (pll_dw1 & 0x7) == DPIO_CHV_M1_DIV_BY_2 ? 2 : 0; | |
0d7b6b11 ID |
8151 | clock.m2 = (pll_dw0 & 0xff) << 22; |
8152 | if (pll_dw3 & DPIO_CHV_FRAC_DIV_EN) | |
8153 | clock.m2 |= pll_dw2 & 0x3fffff; | |
70b23a98 VS |
8154 | clock.n = (pll_dw1 >> DPIO_CHV_N_DIV_SHIFT) & 0xf; |
8155 | clock.p1 = (cmn_dw13 >> DPIO_CHV_P1_DIV_SHIFT) & 0x7; | |
8156 | clock.p2 = (cmn_dw13 >> DPIO_CHV_P2_DIV_SHIFT) & 0x1f; | |
8157 | ||
dccbea3b | 8158 | pipe_config->port_clock = chv_calc_dpll_params(refclk, &clock); |
70b23a98 VS |
8159 | } |
8160 | ||
0e8ffe1b | 8161 | static bool i9xx_get_pipe_config(struct intel_crtc *crtc, |
5cec258b | 8162 | struct intel_crtc_state *pipe_config) |
0e8ffe1b DV |
8163 | { |
8164 | struct drm_device *dev = crtc->base.dev; | |
8165 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1729050e | 8166 | enum intel_display_power_domain power_domain; |
0e8ffe1b | 8167 | uint32_t tmp; |
1729050e | 8168 | bool ret; |
0e8ffe1b | 8169 | |
1729050e ID |
8170 | power_domain = POWER_DOMAIN_PIPE(crtc->pipe); |
8171 | if (!intel_display_power_get_if_enabled(dev_priv, power_domain)) | |
b5482bd0 ID |
8172 | return false; |
8173 | ||
e143a21c | 8174 | pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe; |
8106ddbd | 8175 | pipe_config->shared_dpll = NULL; |
eccb140b | 8176 | |
1729050e ID |
8177 | ret = false; |
8178 | ||
0e8ffe1b DV |
8179 | tmp = I915_READ(PIPECONF(crtc->pipe)); |
8180 | if (!(tmp & PIPECONF_ENABLE)) | |
1729050e | 8181 | goto out; |
0e8ffe1b | 8182 | |
666a4537 | 8183 | if (IS_G4X(dev) || IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { |
42571aef VS |
8184 | switch (tmp & PIPECONF_BPC_MASK) { |
8185 | case PIPECONF_6BPC: | |
8186 | pipe_config->pipe_bpp = 18; | |
8187 | break; | |
8188 | case PIPECONF_8BPC: | |
8189 | pipe_config->pipe_bpp = 24; | |
8190 | break; | |
8191 | case PIPECONF_10BPC: | |
8192 | pipe_config->pipe_bpp = 30; | |
8193 | break; | |
8194 | default: | |
8195 | break; | |
8196 | } | |
8197 | } | |
8198 | ||
666a4537 WB |
8199 | if ((IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) && |
8200 | (tmp & PIPECONF_COLOR_RANGE_SELECT)) | |
b5a9fa09 DV |
8201 | pipe_config->limited_color_range = true; |
8202 | ||
282740f7 VS |
8203 | if (INTEL_INFO(dev)->gen < 4) |
8204 | pipe_config->double_wide = tmp & PIPECONF_DOUBLE_WIDE; | |
8205 | ||
1bd1bd80 | 8206 | intel_get_pipe_timings(crtc, pipe_config); |
bc58be60 | 8207 | intel_get_pipe_src_size(crtc, pipe_config); |
1bd1bd80 | 8208 | |
2fa2fe9a DV |
8209 | i9xx_get_pfit_config(crtc, pipe_config); |
8210 | ||
6c49f241 | 8211 | if (INTEL_INFO(dev)->gen >= 4) { |
c231775c VS |
8212 | /* No way to read it out on pipes B and C */ |
8213 | if (IS_CHERRYVIEW(dev) && crtc->pipe != PIPE_A) | |
8214 | tmp = dev_priv->chv_dpll_md[crtc->pipe]; | |
8215 | else | |
8216 | tmp = I915_READ(DPLL_MD(crtc->pipe)); | |
6c49f241 DV |
8217 | pipe_config->pixel_multiplier = |
8218 | ((tmp & DPLL_MD_UDI_MULTIPLIER_MASK) | |
8219 | >> DPLL_MD_UDI_MULTIPLIER_SHIFT) + 1; | |
8bcc2795 | 8220 | pipe_config->dpll_hw_state.dpll_md = tmp; |
6c49f241 DV |
8221 | } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) { |
8222 | tmp = I915_READ(DPLL(crtc->pipe)); | |
8223 | pipe_config->pixel_multiplier = | |
8224 | ((tmp & SDVO_MULTIPLIER_MASK) | |
8225 | >> SDVO_MULTIPLIER_SHIFT_HIRES) + 1; | |
8226 | } else { | |
8227 | /* Note that on i915G/GM the pixel multiplier is in the sdvo | |
8228 | * port and will be fixed up in the encoder->get_config | |
8229 | * function. */ | |
8230 | pipe_config->pixel_multiplier = 1; | |
8231 | } | |
8bcc2795 | 8232 | pipe_config->dpll_hw_state.dpll = I915_READ(DPLL(crtc->pipe)); |
666a4537 | 8233 | if (!IS_VALLEYVIEW(dev) && !IS_CHERRYVIEW(dev)) { |
1c4e0274 VS |
8234 | /* |
8235 | * DPLL_DVO_2X_MODE must be enabled for both DPLLs | |
8236 | * on 830. Filter it out here so that we don't | |
8237 | * report errors due to that. | |
8238 | */ | |
8239 | if (IS_I830(dev)) | |
8240 | pipe_config->dpll_hw_state.dpll &= ~DPLL_DVO_2X_MODE; | |
8241 | ||
8bcc2795 DV |
8242 | pipe_config->dpll_hw_state.fp0 = I915_READ(FP0(crtc->pipe)); |
8243 | pipe_config->dpll_hw_state.fp1 = I915_READ(FP1(crtc->pipe)); | |
165e901c VS |
8244 | } else { |
8245 | /* Mask out read-only status bits. */ | |
8246 | pipe_config->dpll_hw_state.dpll &= ~(DPLL_LOCK_VLV | | |
8247 | DPLL_PORTC_READY_MASK | | |
8248 | DPLL_PORTB_READY_MASK); | |
8bcc2795 | 8249 | } |
6c49f241 | 8250 | |
70b23a98 VS |
8251 | if (IS_CHERRYVIEW(dev)) |
8252 | chv_crtc_clock_get(crtc, pipe_config); | |
8253 | else if (IS_VALLEYVIEW(dev)) | |
acbec814 JB |
8254 | vlv_crtc_clock_get(crtc, pipe_config); |
8255 | else | |
8256 | i9xx_crtc_clock_get(crtc, pipe_config); | |
18442d08 | 8257 | |
0f64614d VS |
8258 | /* |
8259 | * Normally the dotclock is filled in by the encoder .get_config() | |
8260 | * but in case the pipe is enabled w/o any ports we need a sane | |
8261 | * default. | |
8262 | */ | |
8263 | pipe_config->base.adjusted_mode.crtc_clock = | |
8264 | pipe_config->port_clock / pipe_config->pixel_multiplier; | |
8265 | ||
1729050e ID |
8266 | ret = true; |
8267 | ||
8268 | out: | |
8269 | intel_display_power_put(dev_priv, power_domain); | |
8270 | ||
8271 | return ret; | |
0e8ffe1b DV |
8272 | } |
8273 | ||
dde86e2d | 8274 | static void ironlake_init_pch_refclk(struct drm_device *dev) |
13d83a67 JB |
8275 | { |
8276 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13d83a67 | 8277 | struct intel_encoder *encoder; |
476490a9 | 8278 | int i; |
74cfd7ac | 8279 | u32 val, final; |
13d83a67 | 8280 | bool has_lvds = false; |
199e5d79 | 8281 | bool has_cpu_edp = false; |
199e5d79 | 8282 | bool has_panel = false; |
99eb6a01 KP |
8283 | bool has_ck505 = false; |
8284 | bool can_ssc = false; | |
476490a9 | 8285 | bool using_ssc_source = false; |
13d83a67 JB |
8286 | |
8287 | /* We need to take the global config into account */ | |
b2784e15 | 8288 | for_each_intel_encoder(dev, encoder) { |
199e5d79 KP |
8289 | switch (encoder->type) { |
8290 | case INTEL_OUTPUT_LVDS: | |
8291 | has_panel = true; | |
8292 | has_lvds = true; | |
8293 | break; | |
8294 | case INTEL_OUTPUT_EDP: | |
8295 | has_panel = true; | |
2de6905f | 8296 | if (enc_to_dig_port(&encoder->base)->port == PORT_A) |
199e5d79 KP |
8297 | has_cpu_edp = true; |
8298 | break; | |
6847d71b PZ |
8299 | default: |
8300 | break; | |
13d83a67 JB |
8301 | } |
8302 | } | |
8303 | ||
99eb6a01 | 8304 | if (HAS_PCH_IBX(dev)) { |
41aa3448 | 8305 | has_ck505 = dev_priv->vbt.display_clock_mode; |
99eb6a01 KP |
8306 | can_ssc = has_ck505; |
8307 | } else { | |
8308 | has_ck505 = false; | |
8309 | can_ssc = true; | |
8310 | } | |
8311 | ||
476490a9 L |
8312 | /* Check if any DPLLs are using the SSC source */ |
8313 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { | |
8314 | u32 temp = I915_READ(PCH_DPLL(i)); | |
8315 | ||
8316 | if (!(temp & DPLL_VCO_ENABLE)) | |
8317 | continue; | |
8318 | ||
8319 | if ((temp & PLL_REF_INPUT_MASK) == | |
8320 | PLLB_REF_INPUT_SPREADSPECTRUMIN) { | |
8321 | using_ssc_source = true; | |
8322 | break; | |
8323 | } | |
8324 | } | |
8325 | ||
8326 | DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d using_ssc_source %d\n", | |
8327 | has_panel, has_lvds, has_ck505, using_ssc_source); | |
13d83a67 JB |
8328 | |
8329 | /* Ironlake: try to setup display ref clock before DPLL | |
8330 | * enabling. This is only under driver's control after | |
8331 | * PCH B stepping, previous chipset stepping should be | |
8332 | * ignoring this setting. | |
8333 | */ | |
74cfd7ac CW |
8334 | val = I915_READ(PCH_DREF_CONTROL); |
8335 | ||
8336 | /* As we must carefully and slowly disable/enable each source in turn, | |
8337 | * compute the final state we want first and check if we need to | |
8338 | * make any changes at all. | |
8339 | */ | |
8340 | final = val; | |
8341 | final &= ~DREF_NONSPREAD_SOURCE_MASK; | |
8342 | if (has_ck505) | |
8343 | final |= DREF_NONSPREAD_CK505_ENABLE; | |
8344 | else | |
8345 | final |= DREF_NONSPREAD_SOURCE_ENABLE; | |
8346 | ||
8347 | final &= ~DREF_SSC_SOURCE_MASK; | |
8348 | final &= ~DREF_CPU_SOURCE_OUTPUT_MASK; | |
8349 | final &= ~DREF_SSC1_ENABLE; | |
8350 | ||
8351 | if (has_panel) { | |
8352 | final |= DREF_SSC_SOURCE_ENABLE; | |
8353 | ||
8354 | if (intel_panel_use_ssc(dev_priv) && can_ssc) | |
8355 | final |= DREF_SSC1_ENABLE; | |
8356 | ||
8357 | if (has_cpu_edp) { | |
8358 | if (intel_panel_use_ssc(dev_priv) && can_ssc) | |
8359 | final |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; | |
8360 | else | |
8361 | final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; | |
8362 | } else | |
8363 | final |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
476490a9 L |
8364 | } else if (using_ssc_source) { |
8365 | final |= DREF_SSC_SOURCE_ENABLE; | |
8366 | final |= DREF_SSC1_ENABLE; | |
74cfd7ac CW |
8367 | } |
8368 | ||
8369 | if (final == val) | |
8370 | return; | |
8371 | ||
13d83a67 | 8372 | /* Always enable nonspread source */ |
74cfd7ac | 8373 | val &= ~DREF_NONSPREAD_SOURCE_MASK; |
13d83a67 | 8374 | |
99eb6a01 | 8375 | if (has_ck505) |
74cfd7ac | 8376 | val |= DREF_NONSPREAD_CK505_ENABLE; |
99eb6a01 | 8377 | else |
74cfd7ac | 8378 | val |= DREF_NONSPREAD_SOURCE_ENABLE; |
13d83a67 | 8379 | |
199e5d79 | 8380 | if (has_panel) { |
74cfd7ac CW |
8381 | val &= ~DREF_SSC_SOURCE_MASK; |
8382 | val |= DREF_SSC_SOURCE_ENABLE; | |
13d83a67 | 8383 | |
199e5d79 | 8384 | /* SSC must be turned on before enabling the CPU output */ |
99eb6a01 | 8385 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 8386 | DRM_DEBUG_KMS("Using SSC on panel\n"); |
74cfd7ac | 8387 | val |= DREF_SSC1_ENABLE; |
e77166b5 | 8388 | } else |
74cfd7ac | 8389 | val &= ~DREF_SSC1_ENABLE; |
199e5d79 KP |
8390 | |
8391 | /* Get SSC going before enabling the outputs */ | |
74cfd7ac | 8392 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
8393 | POSTING_READ(PCH_DREF_CONTROL); |
8394 | udelay(200); | |
8395 | ||
74cfd7ac | 8396 | val &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
13d83a67 JB |
8397 | |
8398 | /* Enable CPU source on CPU attached eDP */ | |
199e5d79 | 8399 | if (has_cpu_edp) { |
99eb6a01 | 8400 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 8401 | DRM_DEBUG_KMS("Using SSC on eDP\n"); |
74cfd7ac | 8402 | val |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; |
eba905b2 | 8403 | } else |
74cfd7ac | 8404 | val |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; |
199e5d79 | 8405 | } else |
74cfd7ac | 8406 | val |= DREF_CPU_SOURCE_OUTPUT_DISABLE; |
199e5d79 | 8407 | |
74cfd7ac | 8408 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
8409 | POSTING_READ(PCH_DREF_CONTROL); |
8410 | udelay(200); | |
8411 | } else { | |
476490a9 | 8412 | DRM_DEBUG_KMS("Disabling CPU source output\n"); |
199e5d79 | 8413 | |
74cfd7ac | 8414 | val &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
199e5d79 KP |
8415 | |
8416 | /* Turn off CPU output */ | |
74cfd7ac | 8417 | val |= DREF_CPU_SOURCE_OUTPUT_DISABLE; |
199e5d79 | 8418 | |
74cfd7ac | 8419 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
8420 | POSTING_READ(PCH_DREF_CONTROL); |
8421 | udelay(200); | |
8422 | ||
476490a9 L |
8423 | if (!using_ssc_source) { |
8424 | DRM_DEBUG_KMS("Disabling SSC source\n"); | |
199e5d79 | 8425 | |
476490a9 L |
8426 | /* Turn off the SSC source */ |
8427 | val &= ~DREF_SSC_SOURCE_MASK; | |
8428 | val |= DREF_SSC_SOURCE_DISABLE; | |
199e5d79 | 8429 | |
476490a9 L |
8430 | /* Turn off SSC1 */ |
8431 | val &= ~DREF_SSC1_ENABLE; | |
8432 | ||
8433 | I915_WRITE(PCH_DREF_CONTROL, val); | |
8434 | POSTING_READ(PCH_DREF_CONTROL); | |
8435 | udelay(200); | |
8436 | } | |
13d83a67 | 8437 | } |
74cfd7ac CW |
8438 | |
8439 | BUG_ON(val != final); | |
13d83a67 JB |
8440 | } |
8441 | ||
f31f2d55 | 8442 | static void lpt_reset_fdi_mphy(struct drm_i915_private *dev_priv) |
dde86e2d | 8443 | { |
f31f2d55 | 8444 | uint32_t tmp; |
dde86e2d | 8445 | |
0ff066a9 PZ |
8446 | tmp = I915_READ(SOUTH_CHICKEN2); |
8447 | tmp |= FDI_MPHY_IOSFSB_RESET_CTL; | |
8448 | I915_WRITE(SOUTH_CHICKEN2, tmp); | |
dde86e2d | 8449 | |
11f61457 ID |
8450 | if (wait_for_us(I915_READ(SOUTH_CHICKEN2) & |
8451 | FDI_MPHY_IOSFSB_RESET_STATUS, 100)) | |
0ff066a9 | 8452 | DRM_ERROR("FDI mPHY reset assert timeout\n"); |
dde86e2d | 8453 | |
0ff066a9 PZ |
8454 | tmp = I915_READ(SOUTH_CHICKEN2); |
8455 | tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL; | |
8456 | I915_WRITE(SOUTH_CHICKEN2, tmp); | |
dde86e2d | 8457 | |
11f61457 ID |
8458 | if (wait_for_us((I915_READ(SOUTH_CHICKEN2) & |
8459 | FDI_MPHY_IOSFSB_RESET_STATUS) == 0, 100)) | |
0ff066a9 | 8460 | DRM_ERROR("FDI mPHY reset de-assert timeout\n"); |
f31f2d55 PZ |
8461 | } |
8462 | ||
8463 | /* WaMPhyProgramming:hsw */ | |
8464 | static void lpt_program_fdi_mphy(struct drm_i915_private *dev_priv) | |
8465 | { | |
8466 | uint32_t tmp; | |
dde86e2d PZ |
8467 | |
8468 | tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY); | |
8469 | tmp &= ~(0xFF << 24); | |
8470 | tmp |= (0x12 << 24); | |
8471 | intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY); | |
8472 | ||
dde86e2d PZ |
8473 | tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY); |
8474 | tmp |= (1 << 11); | |
8475 | intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY); | |
8476 | ||
8477 | tmp = intel_sbi_read(dev_priv, 0x2108, SBI_MPHY); | |
8478 | tmp |= (1 << 11); | |
8479 | intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY); | |
8480 | ||
dde86e2d PZ |
8481 | tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY); |
8482 | tmp |= (1 << 24) | (1 << 21) | (1 << 18); | |
8483 | intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY); | |
8484 | ||
8485 | tmp = intel_sbi_read(dev_priv, 0x216C, SBI_MPHY); | |
8486 | tmp |= (1 << 24) | (1 << 21) | (1 << 18); | |
8487 | intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY); | |
8488 | ||
0ff066a9 PZ |
8489 | tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY); |
8490 | tmp &= ~(7 << 13); | |
8491 | tmp |= (5 << 13); | |
8492 | intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY); | |
dde86e2d | 8493 | |
0ff066a9 PZ |
8494 | tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY); |
8495 | tmp &= ~(7 << 13); | |
8496 | tmp |= (5 << 13); | |
8497 | intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY); | |
dde86e2d PZ |
8498 | |
8499 | tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY); | |
8500 | tmp &= ~0xFF; | |
8501 | tmp |= 0x1C; | |
8502 | intel_sbi_write(dev_priv, 0x208C, tmp, SBI_MPHY); | |
8503 | ||
8504 | tmp = intel_sbi_read(dev_priv, 0x218C, SBI_MPHY); | |
8505 | tmp &= ~0xFF; | |
8506 | tmp |= 0x1C; | |
8507 | intel_sbi_write(dev_priv, 0x218C, tmp, SBI_MPHY); | |
8508 | ||
8509 | tmp = intel_sbi_read(dev_priv, 0x2098, SBI_MPHY); | |
8510 | tmp &= ~(0xFF << 16); | |
8511 | tmp |= (0x1C << 16); | |
8512 | intel_sbi_write(dev_priv, 0x2098, tmp, SBI_MPHY); | |
8513 | ||
8514 | tmp = intel_sbi_read(dev_priv, 0x2198, SBI_MPHY); | |
8515 | tmp &= ~(0xFF << 16); | |
8516 | tmp |= (0x1C << 16); | |
8517 | intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY); | |
8518 | ||
0ff066a9 PZ |
8519 | tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY); |
8520 | tmp |= (1 << 27); | |
8521 | intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY); | |
dde86e2d | 8522 | |
0ff066a9 PZ |
8523 | tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY); |
8524 | tmp |= (1 << 27); | |
8525 | intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY); | |
dde86e2d | 8526 | |
0ff066a9 PZ |
8527 | tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY); |
8528 | tmp &= ~(0xF << 28); | |
8529 | tmp |= (4 << 28); | |
8530 | intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY); | |
dde86e2d | 8531 | |
0ff066a9 PZ |
8532 | tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY); |
8533 | tmp &= ~(0xF << 28); | |
8534 | tmp |= (4 << 28); | |
8535 | intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY); | |
f31f2d55 PZ |
8536 | } |
8537 | ||
2fa86a1f PZ |
8538 | /* Implements 3 different sequences from BSpec chapter "Display iCLK |
8539 | * Programming" based on the parameters passed: | |
8540 | * - Sequence to enable CLKOUT_DP | |
8541 | * - Sequence to enable CLKOUT_DP without spread | |
8542 | * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O | |
8543 | */ | |
8544 | static void lpt_enable_clkout_dp(struct drm_device *dev, bool with_spread, | |
8545 | bool with_fdi) | |
f31f2d55 PZ |
8546 | { |
8547 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2fa86a1f PZ |
8548 | uint32_t reg, tmp; |
8549 | ||
8550 | if (WARN(with_fdi && !with_spread, "FDI requires downspread\n")) | |
8551 | with_spread = true; | |
c2699524 | 8552 | if (WARN(HAS_PCH_LPT_LP(dev) && with_fdi, "LP PCH doesn't have FDI\n")) |
2fa86a1f | 8553 | with_fdi = false; |
f31f2d55 | 8554 | |
a580516d | 8555 | mutex_lock(&dev_priv->sb_lock); |
f31f2d55 PZ |
8556 | |
8557 | tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK); | |
8558 | tmp &= ~SBI_SSCCTL_DISABLE; | |
8559 | tmp |= SBI_SSCCTL_PATHALT; | |
8560 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
8561 | ||
8562 | udelay(24); | |
8563 | ||
2fa86a1f PZ |
8564 | if (with_spread) { |
8565 | tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK); | |
8566 | tmp &= ~SBI_SSCCTL_PATHALT; | |
8567 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
f31f2d55 | 8568 | |
2fa86a1f PZ |
8569 | if (with_fdi) { |
8570 | lpt_reset_fdi_mphy(dev_priv); | |
8571 | lpt_program_fdi_mphy(dev_priv); | |
8572 | } | |
8573 | } | |
dde86e2d | 8574 | |
c2699524 | 8575 | reg = HAS_PCH_LPT_LP(dev) ? SBI_GEN0 : SBI_DBUFF0; |
2fa86a1f PZ |
8576 | tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK); |
8577 | tmp |= SBI_GEN0_CFG_BUFFENABLE_DISABLE; | |
8578 | intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK); | |
c00db246 | 8579 | |
a580516d | 8580 | mutex_unlock(&dev_priv->sb_lock); |
dde86e2d PZ |
8581 | } |
8582 | ||
47701c3b PZ |
8583 | /* Sequence to disable CLKOUT_DP */ |
8584 | static void lpt_disable_clkout_dp(struct drm_device *dev) | |
8585 | { | |
8586 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8587 | uint32_t reg, tmp; | |
8588 | ||
a580516d | 8589 | mutex_lock(&dev_priv->sb_lock); |
47701c3b | 8590 | |
c2699524 | 8591 | reg = HAS_PCH_LPT_LP(dev) ? SBI_GEN0 : SBI_DBUFF0; |
47701c3b PZ |
8592 | tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK); |
8593 | tmp &= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE; | |
8594 | intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK); | |
8595 | ||
8596 | tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK); | |
8597 | if (!(tmp & SBI_SSCCTL_DISABLE)) { | |
8598 | if (!(tmp & SBI_SSCCTL_PATHALT)) { | |
8599 | tmp |= SBI_SSCCTL_PATHALT; | |
8600 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
8601 | udelay(32); | |
8602 | } | |
8603 | tmp |= SBI_SSCCTL_DISABLE; | |
8604 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
8605 | } | |
8606 | ||
a580516d | 8607 | mutex_unlock(&dev_priv->sb_lock); |
47701c3b PZ |
8608 | } |
8609 | ||
f7be2c21 VS |
8610 | #define BEND_IDX(steps) ((50 + (steps)) / 5) |
8611 | ||
8612 | static const uint16_t sscdivintphase[] = { | |
8613 | [BEND_IDX( 50)] = 0x3B23, | |
8614 | [BEND_IDX( 45)] = 0x3B23, | |
8615 | [BEND_IDX( 40)] = 0x3C23, | |
8616 | [BEND_IDX( 35)] = 0x3C23, | |
8617 | [BEND_IDX( 30)] = 0x3D23, | |
8618 | [BEND_IDX( 25)] = 0x3D23, | |
8619 | [BEND_IDX( 20)] = 0x3E23, | |
8620 | [BEND_IDX( 15)] = 0x3E23, | |
8621 | [BEND_IDX( 10)] = 0x3F23, | |
8622 | [BEND_IDX( 5)] = 0x3F23, | |
8623 | [BEND_IDX( 0)] = 0x0025, | |
8624 | [BEND_IDX( -5)] = 0x0025, | |
8625 | [BEND_IDX(-10)] = 0x0125, | |
8626 | [BEND_IDX(-15)] = 0x0125, | |
8627 | [BEND_IDX(-20)] = 0x0225, | |
8628 | [BEND_IDX(-25)] = 0x0225, | |
8629 | [BEND_IDX(-30)] = 0x0325, | |
8630 | [BEND_IDX(-35)] = 0x0325, | |
8631 | [BEND_IDX(-40)] = 0x0425, | |
8632 | [BEND_IDX(-45)] = 0x0425, | |
8633 | [BEND_IDX(-50)] = 0x0525, | |
8634 | }; | |
8635 | ||
8636 | /* | |
8637 | * Bend CLKOUT_DP | |
8638 | * steps -50 to 50 inclusive, in steps of 5 | |
8639 | * < 0 slow down the clock, > 0 speed up the clock, 0 == no bend (135MHz) | |
8640 | * change in clock period = -(steps / 10) * 5.787 ps | |
8641 | */ | |
8642 | static void lpt_bend_clkout_dp(struct drm_i915_private *dev_priv, int steps) | |
8643 | { | |
8644 | uint32_t tmp; | |
8645 | int idx = BEND_IDX(steps); | |
8646 | ||
8647 | if (WARN_ON(steps % 5 != 0)) | |
8648 | return; | |
8649 | ||
8650 | if (WARN_ON(idx >= ARRAY_SIZE(sscdivintphase))) | |
8651 | return; | |
8652 | ||
8653 | mutex_lock(&dev_priv->sb_lock); | |
8654 | ||
8655 | if (steps % 10 != 0) | |
8656 | tmp = 0xAAAAAAAB; | |
8657 | else | |
8658 | tmp = 0x00000000; | |
8659 | intel_sbi_write(dev_priv, SBI_SSCDITHPHASE, tmp, SBI_ICLK); | |
8660 | ||
8661 | tmp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE, SBI_ICLK); | |
8662 | tmp &= 0xffff0000; | |
8663 | tmp |= sscdivintphase[idx]; | |
8664 | intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE, tmp, SBI_ICLK); | |
8665 | ||
8666 | mutex_unlock(&dev_priv->sb_lock); | |
8667 | } | |
8668 | ||
8669 | #undef BEND_IDX | |
8670 | ||
bf8fa3d3 PZ |
8671 | static void lpt_init_pch_refclk(struct drm_device *dev) |
8672 | { | |
bf8fa3d3 PZ |
8673 | struct intel_encoder *encoder; |
8674 | bool has_vga = false; | |
8675 | ||
b2784e15 | 8676 | for_each_intel_encoder(dev, encoder) { |
bf8fa3d3 PZ |
8677 | switch (encoder->type) { |
8678 | case INTEL_OUTPUT_ANALOG: | |
8679 | has_vga = true; | |
8680 | break; | |
6847d71b PZ |
8681 | default: |
8682 | break; | |
bf8fa3d3 PZ |
8683 | } |
8684 | } | |
8685 | ||
f7be2c21 VS |
8686 | if (has_vga) { |
8687 | lpt_bend_clkout_dp(to_i915(dev), 0); | |
47701c3b | 8688 | lpt_enable_clkout_dp(dev, true, true); |
f7be2c21 | 8689 | } else { |
47701c3b | 8690 | lpt_disable_clkout_dp(dev); |
f7be2c21 | 8691 | } |
bf8fa3d3 PZ |
8692 | } |
8693 | ||
dde86e2d PZ |
8694 | /* |
8695 | * Initialize reference clocks when the driver loads | |
8696 | */ | |
8697 | void intel_init_pch_refclk(struct drm_device *dev) | |
8698 | { | |
8699 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) | |
8700 | ironlake_init_pch_refclk(dev); | |
8701 | else if (HAS_PCH_LPT(dev)) | |
8702 | lpt_init_pch_refclk(dev); | |
8703 | } | |
8704 | ||
6ff93609 | 8705 | static void ironlake_set_pipeconf(struct drm_crtc *crtc) |
79e53945 | 8706 | { |
c8203565 | 8707 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
79e53945 JB |
8708 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
8709 | int pipe = intel_crtc->pipe; | |
c8203565 PZ |
8710 | uint32_t val; |
8711 | ||
78114071 | 8712 | val = 0; |
c8203565 | 8713 | |
6e3c9717 | 8714 | switch (intel_crtc->config->pipe_bpp) { |
c8203565 | 8715 | case 18: |
dfd07d72 | 8716 | val |= PIPECONF_6BPC; |
c8203565 PZ |
8717 | break; |
8718 | case 24: | |
dfd07d72 | 8719 | val |= PIPECONF_8BPC; |
c8203565 PZ |
8720 | break; |
8721 | case 30: | |
dfd07d72 | 8722 | val |= PIPECONF_10BPC; |
c8203565 PZ |
8723 | break; |
8724 | case 36: | |
dfd07d72 | 8725 | val |= PIPECONF_12BPC; |
c8203565 PZ |
8726 | break; |
8727 | default: | |
cc769b62 PZ |
8728 | /* Case prevented by intel_choose_pipe_bpp_dither. */ |
8729 | BUG(); | |
c8203565 PZ |
8730 | } |
8731 | ||
6e3c9717 | 8732 | if (intel_crtc->config->dither) |
c8203565 PZ |
8733 | val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP); |
8734 | ||
6e3c9717 | 8735 | if (intel_crtc->config->base.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) |
c8203565 PZ |
8736 | val |= PIPECONF_INTERLACED_ILK; |
8737 | else | |
8738 | val |= PIPECONF_PROGRESSIVE; | |
8739 | ||
6e3c9717 | 8740 | if (intel_crtc->config->limited_color_range) |
3685a8f3 | 8741 | val |= PIPECONF_COLOR_RANGE_SELECT; |
3685a8f3 | 8742 | |
c8203565 PZ |
8743 | I915_WRITE(PIPECONF(pipe), val); |
8744 | POSTING_READ(PIPECONF(pipe)); | |
8745 | } | |
8746 | ||
6ff93609 | 8747 | static void haswell_set_pipeconf(struct drm_crtc *crtc) |
ee2b0b38 | 8748 | { |
391bf048 | 8749 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
ee2b0b38 | 8750 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6e3c9717 | 8751 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
391bf048 | 8752 | u32 val = 0; |
ee2b0b38 | 8753 | |
391bf048 | 8754 | if (IS_HASWELL(dev_priv) && intel_crtc->config->dither) |
ee2b0b38 PZ |
8755 | val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP); |
8756 | ||
6e3c9717 | 8757 | if (intel_crtc->config->base.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) |
ee2b0b38 PZ |
8758 | val |= PIPECONF_INTERLACED_ILK; |
8759 | else | |
8760 | val |= PIPECONF_PROGRESSIVE; | |
8761 | ||
702e7a56 PZ |
8762 | I915_WRITE(PIPECONF(cpu_transcoder), val); |
8763 | POSTING_READ(PIPECONF(cpu_transcoder)); | |
391bf048 | 8764 | } |
3eff4faa | 8765 | |
391bf048 JN |
8766 | static void haswell_set_pipemisc(struct drm_crtc *crtc) |
8767 | { | |
8768 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; | |
8769 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
756f85cf | 8770 | |
391bf048 JN |
8771 | if (IS_BROADWELL(dev_priv) || INTEL_INFO(dev_priv)->gen >= 9) { |
8772 | u32 val = 0; | |
756f85cf | 8773 | |
6e3c9717 | 8774 | switch (intel_crtc->config->pipe_bpp) { |
756f85cf PZ |
8775 | case 18: |
8776 | val |= PIPEMISC_DITHER_6_BPC; | |
8777 | break; | |
8778 | case 24: | |
8779 | val |= PIPEMISC_DITHER_8_BPC; | |
8780 | break; | |
8781 | case 30: | |
8782 | val |= PIPEMISC_DITHER_10_BPC; | |
8783 | break; | |
8784 | case 36: | |
8785 | val |= PIPEMISC_DITHER_12_BPC; | |
8786 | break; | |
8787 | default: | |
8788 | /* Case prevented by pipe_config_set_bpp. */ | |
8789 | BUG(); | |
8790 | } | |
79e53945 | 8791 | |
6e3c9717 | 8792 | if (intel_crtc->config->dither) |
756f85cf | 8793 | val |= PIPEMISC_DITHER_ENABLE | PIPEMISC_DITHER_TYPE_SP; |
cda4b7d3 | 8794 | |
391bf048 | 8795 | I915_WRITE(PIPEMISC(intel_crtc->pipe), val); |
756f85cf | 8796 | } |
6591c6e4 PZ |
8797 | } |
8798 | ||
d4b1931c PZ |
8799 | int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp) |
8800 | { | |
8801 | /* | |
8802 | * Account for spread spectrum to avoid | |
8803 | * oversubscribing the link. Max center spread | |
8804 | * is 2.5%; use 5% for safety's sake. | |
8805 | */ | |
8806 | u32 bps = target_clock * bpp * 21 / 20; | |
619d4d04 | 8807 | return DIV_ROUND_UP(bps, link_bw * 8); |
d4b1931c PZ |
8808 | } |
8809 | ||
7429e9d4 | 8810 | static bool ironlake_needs_fb_cb_tune(struct dpll *dpll, int factor) |
6cf86a5e | 8811 | { |
7429e9d4 | 8812 | return i9xx_dpll_compute_m(dpll) < factor * dpll->n; |
f48d8f23 PZ |
8813 | } |
8814 | ||
b75ca6f6 ACO |
8815 | static void ironlake_compute_dpll(struct intel_crtc *intel_crtc, |
8816 | struct intel_crtc_state *crtc_state, | |
8817 | intel_clock_t *reduced_clock) | |
79e53945 | 8818 | { |
de13a2e3 | 8819 | struct drm_crtc *crtc = &intel_crtc->base; |
79e53945 JB |
8820 | struct drm_device *dev = crtc->dev; |
8821 | struct drm_i915_private *dev_priv = dev->dev_private; | |
55bb9992 | 8822 | struct drm_atomic_state *state = crtc_state->base.state; |
da3ced29 | 8823 | struct drm_connector *connector; |
55bb9992 ACO |
8824 | struct drm_connector_state *connector_state; |
8825 | struct intel_encoder *encoder; | |
b75ca6f6 | 8826 | u32 dpll, fp, fp2; |
ceb41007 | 8827 | int factor, i; |
09ede541 | 8828 | bool is_lvds = false, is_sdvo = false; |
79e53945 | 8829 | |
da3ced29 | 8830 | for_each_connector_in_state(state, connector, connector_state, i) { |
55bb9992 ACO |
8831 | if (connector_state->crtc != crtc_state->base.crtc) |
8832 | continue; | |
8833 | ||
8834 | encoder = to_intel_encoder(connector_state->best_encoder); | |
8835 | ||
8836 | switch (encoder->type) { | |
79e53945 JB |
8837 | case INTEL_OUTPUT_LVDS: |
8838 | is_lvds = true; | |
8839 | break; | |
8840 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 8841 | case INTEL_OUTPUT_HDMI: |
79e53945 | 8842 | is_sdvo = true; |
79e53945 | 8843 | break; |
6847d71b PZ |
8844 | default: |
8845 | break; | |
79e53945 JB |
8846 | } |
8847 | } | |
79e53945 | 8848 | |
c1858123 | 8849 | /* Enable autotuning of the PLL clock (if permissible) */ |
8febb297 EA |
8850 | factor = 21; |
8851 | if (is_lvds) { | |
8852 | if ((intel_panel_use_ssc(dev_priv) && | |
e91e941b | 8853 | dev_priv->vbt.lvds_ssc_freq == 100000) || |
f0b44056 | 8854 | (HAS_PCH_IBX(dev) && intel_is_dual_link_lvds(dev))) |
8febb297 | 8855 | factor = 25; |
190f68c5 | 8856 | } else if (crtc_state->sdvo_tv_clock) |
8febb297 | 8857 | factor = 20; |
c1858123 | 8858 | |
b75ca6f6 ACO |
8859 | fp = i9xx_dpll_compute_fp(&crtc_state->dpll); |
8860 | ||
190f68c5 | 8861 | if (ironlake_needs_fb_cb_tune(&crtc_state->dpll, factor)) |
b75ca6f6 | 8862 | fp |= FP_CB_TUNE; |
2c07245f | 8863 | |
b75ca6f6 ACO |
8864 | if (reduced_clock) { |
8865 | fp2 = i9xx_dpll_compute_fp(reduced_clock); | |
2c07245f | 8866 | |
b75ca6f6 ACO |
8867 | if (reduced_clock->m < factor * reduced_clock->n) |
8868 | fp2 |= FP_CB_TUNE; | |
8869 | } else { | |
8870 | fp2 = fp; | |
8871 | } | |
9a7c7890 | 8872 | |
5eddb70b | 8873 | dpll = 0; |
2c07245f | 8874 | |
a07d6787 EA |
8875 | if (is_lvds) |
8876 | dpll |= DPLLB_MODE_LVDS; | |
8877 | else | |
8878 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
198a037f | 8879 | |
190f68c5 | 8880 | dpll |= (crtc_state->pixel_multiplier - 1) |
ef1b460d | 8881 | << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; |
198a037f DV |
8882 | |
8883 | if (is_sdvo) | |
4a33e48d | 8884 | dpll |= DPLL_SDVO_HIGH_SPEED; |
190f68c5 | 8885 | if (crtc_state->has_dp_encoder) |
4a33e48d | 8886 | dpll |= DPLL_SDVO_HIGH_SPEED; |
79e53945 | 8887 | |
a07d6787 | 8888 | /* compute bitmask from p1 value */ |
190f68c5 | 8889 | dpll |= (1 << (crtc_state->dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
a07d6787 | 8890 | /* also FPA1 */ |
190f68c5 | 8891 | dpll |= (1 << (crtc_state->dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; |
a07d6787 | 8892 | |
190f68c5 | 8893 | switch (crtc_state->dpll.p2) { |
a07d6787 EA |
8894 | case 5: |
8895 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
8896 | break; | |
8897 | case 7: | |
8898 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
8899 | break; | |
8900 | case 10: | |
8901 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
8902 | break; | |
8903 | case 14: | |
8904 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
8905 | break; | |
79e53945 JB |
8906 | } |
8907 | ||
ceb41007 | 8908 | if (is_lvds && intel_panel_use_ssc(dev_priv)) |
43565a06 | 8909 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
79e53945 JB |
8910 | else |
8911 | dpll |= PLL_REF_INPUT_DREFCLK; | |
8912 | ||
b75ca6f6 ACO |
8913 | dpll |= DPLL_VCO_ENABLE; |
8914 | ||
8915 | crtc_state->dpll_hw_state.dpll = dpll; | |
8916 | crtc_state->dpll_hw_state.fp0 = fp; | |
8917 | crtc_state->dpll_hw_state.fp1 = fp2; | |
de13a2e3 PZ |
8918 | } |
8919 | ||
190f68c5 ACO |
8920 | static int ironlake_crtc_compute_clock(struct intel_crtc *crtc, |
8921 | struct intel_crtc_state *crtc_state) | |
de13a2e3 | 8922 | { |
c7653199 | 8923 | struct drm_device *dev = crtc->base.dev; |
997c030c | 8924 | struct drm_i915_private *dev_priv = dev->dev_private; |
364ee29d | 8925 | intel_clock_t reduced_clock; |
7ed9f894 | 8926 | bool has_reduced_clock = false; |
e2b78267 | 8927 | struct intel_shared_dpll *pll; |
997c030c ACO |
8928 | const intel_limit_t *limit; |
8929 | int refclk = 120000; | |
de13a2e3 | 8930 | |
dd3cd74a ACO |
8931 | memset(&crtc_state->dpll_hw_state, 0, |
8932 | sizeof(crtc_state->dpll_hw_state)); | |
8933 | ||
ded220e2 ACO |
8934 | crtc->lowfreq_avail = false; |
8935 | ||
8936 | /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */ | |
8937 | if (!crtc_state->has_pch_encoder) | |
8938 | return 0; | |
79e53945 | 8939 | |
997c030c ACO |
8940 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) { |
8941 | if (intel_panel_use_ssc(dev_priv)) { | |
8942 | DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", | |
8943 | dev_priv->vbt.lvds_ssc_freq); | |
8944 | refclk = dev_priv->vbt.lvds_ssc_freq; | |
8945 | } | |
79e53945 | 8946 | |
997c030c ACO |
8947 | if (intel_is_dual_link_lvds(dev)) { |
8948 | if (refclk == 100000) | |
8949 | limit = &intel_limits_ironlake_dual_lvds_100m; | |
8950 | else | |
8951 | limit = &intel_limits_ironlake_dual_lvds; | |
8952 | } else { | |
8953 | if (refclk == 100000) | |
8954 | limit = &intel_limits_ironlake_single_lvds_100m; | |
8955 | else | |
8956 | limit = &intel_limits_ironlake_single_lvds; | |
8957 | } | |
8958 | } else { | |
8959 | limit = &intel_limits_ironlake_dac; | |
8960 | } | |
a07d6787 | 8961 | |
364ee29d | 8962 | if (!crtc_state->clock_set && |
997c030c ACO |
8963 | !g4x_find_best_dpll(limit, crtc_state, crtc_state->port_clock, |
8964 | refclk, NULL, &crtc_state->dpll)) { | |
de13a2e3 PZ |
8965 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); |
8966 | return -EINVAL; | |
79e53945 | 8967 | } |
cbbab5bd | 8968 | |
b75ca6f6 ACO |
8969 | ironlake_compute_dpll(crtc, crtc_state, |
8970 | has_reduced_clock ? &reduced_clock : NULL); | |
66e985c0 | 8971 | |
ded220e2 ACO |
8972 | pll = intel_get_shared_dpll(crtc, crtc_state, NULL); |
8973 | if (pll == NULL) { | |
8974 | DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n", | |
8975 | pipe_name(crtc->pipe)); | |
8976 | return -EINVAL; | |
3fb37703 | 8977 | } |
79e53945 | 8978 | |
ded220e2 ACO |
8979 | if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS) && |
8980 | has_reduced_clock) | |
c7653199 | 8981 | crtc->lowfreq_avail = true; |
e2b78267 | 8982 | |
c8f7a0db | 8983 | return 0; |
79e53945 JB |
8984 | } |
8985 | ||
eb14cb74 VS |
8986 | static void intel_pch_transcoder_get_m_n(struct intel_crtc *crtc, |
8987 | struct intel_link_m_n *m_n) | |
8988 | { | |
8989 | struct drm_device *dev = crtc->base.dev; | |
8990 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8991 | enum pipe pipe = crtc->pipe; | |
8992 | ||
8993 | m_n->link_m = I915_READ(PCH_TRANS_LINK_M1(pipe)); | |
8994 | m_n->link_n = I915_READ(PCH_TRANS_LINK_N1(pipe)); | |
8995 | m_n->gmch_m = I915_READ(PCH_TRANS_DATA_M1(pipe)) | |
8996 | & ~TU_SIZE_MASK; | |
8997 | m_n->gmch_n = I915_READ(PCH_TRANS_DATA_N1(pipe)); | |
8998 | m_n->tu = ((I915_READ(PCH_TRANS_DATA_M1(pipe)) | |
8999 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
9000 | } | |
9001 | ||
9002 | static void intel_cpu_transcoder_get_m_n(struct intel_crtc *crtc, | |
9003 | enum transcoder transcoder, | |
b95af8be VK |
9004 | struct intel_link_m_n *m_n, |
9005 | struct intel_link_m_n *m2_n2) | |
72419203 DV |
9006 | { |
9007 | struct drm_device *dev = crtc->base.dev; | |
9008 | struct drm_i915_private *dev_priv = dev->dev_private; | |
eb14cb74 | 9009 | enum pipe pipe = crtc->pipe; |
72419203 | 9010 | |
eb14cb74 VS |
9011 | if (INTEL_INFO(dev)->gen >= 5) { |
9012 | m_n->link_m = I915_READ(PIPE_LINK_M1(transcoder)); | |
9013 | m_n->link_n = I915_READ(PIPE_LINK_N1(transcoder)); | |
9014 | m_n->gmch_m = I915_READ(PIPE_DATA_M1(transcoder)) | |
9015 | & ~TU_SIZE_MASK; | |
9016 | m_n->gmch_n = I915_READ(PIPE_DATA_N1(transcoder)); | |
9017 | m_n->tu = ((I915_READ(PIPE_DATA_M1(transcoder)) | |
9018 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
b95af8be VK |
9019 | /* Read M2_N2 registers only for gen < 8 (M2_N2 available for |
9020 | * gen < 8) and if DRRS is supported (to make sure the | |
9021 | * registers are not unnecessarily read). | |
9022 | */ | |
9023 | if (m2_n2 && INTEL_INFO(dev)->gen < 8 && | |
6e3c9717 | 9024 | crtc->config->has_drrs) { |
b95af8be VK |
9025 | m2_n2->link_m = I915_READ(PIPE_LINK_M2(transcoder)); |
9026 | m2_n2->link_n = I915_READ(PIPE_LINK_N2(transcoder)); | |
9027 | m2_n2->gmch_m = I915_READ(PIPE_DATA_M2(transcoder)) | |
9028 | & ~TU_SIZE_MASK; | |
9029 | m2_n2->gmch_n = I915_READ(PIPE_DATA_N2(transcoder)); | |
9030 | m2_n2->tu = ((I915_READ(PIPE_DATA_M2(transcoder)) | |
9031 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
9032 | } | |
eb14cb74 VS |
9033 | } else { |
9034 | m_n->link_m = I915_READ(PIPE_LINK_M_G4X(pipe)); | |
9035 | m_n->link_n = I915_READ(PIPE_LINK_N_G4X(pipe)); | |
9036 | m_n->gmch_m = I915_READ(PIPE_DATA_M_G4X(pipe)) | |
9037 | & ~TU_SIZE_MASK; | |
9038 | m_n->gmch_n = I915_READ(PIPE_DATA_N_G4X(pipe)); | |
9039 | m_n->tu = ((I915_READ(PIPE_DATA_M_G4X(pipe)) | |
9040 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
9041 | } | |
9042 | } | |
9043 | ||
9044 | void intel_dp_get_m_n(struct intel_crtc *crtc, | |
5cec258b | 9045 | struct intel_crtc_state *pipe_config) |
eb14cb74 | 9046 | { |
681a8504 | 9047 | if (pipe_config->has_pch_encoder) |
eb14cb74 VS |
9048 | intel_pch_transcoder_get_m_n(crtc, &pipe_config->dp_m_n); |
9049 | else | |
9050 | intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder, | |
b95af8be VK |
9051 | &pipe_config->dp_m_n, |
9052 | &pipe_config->dp_m2_n2); | |
eb14cb74 | 9053 | } |
72419203 | 9054 | |
eb14cb74 | 9055 | static void ironlake_get_fdi_m_n_config(struct intel_crtc *crtc, |
5cec258b | 9056 | struct intel_crtc_state *pipe_config) |
eb14cb74 VS |
9057 | { |
9058 | intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder, | |
b95af8be | 9059 | &pipe_config->fdi_m_n, NULL); |
72419203 DV |
9060 | } |
9061 | ||
bd2e244f | 9062 | static void skylake_get_pfit_config(struct intel_crtc *crtc, |
5cec258b | 9063 | struct intel_crtc_state *pipe_config) |
bd2e244f JB |
9064 | { |
9065 | struct drm_device *dev = crtc->base.dev; | |
9066 | struct drm_i915_private *dev_priv = dev->dev_private; | |
a1b2278e CK |
9067 | struct intel_crtc_scaler_state *scaler_state = &pipe_config->scaler_state; |
9068 | uint32_t ps_ctrl = 0; | |
9069 | int id = -1; | |
9070 | int i; | |
bd2e244f | 9071 | |
a1b2278e CK |
9072 | /* find scaler attached to this pipe */ |
9073 | for (i = 0; i < crtc->num_scalers; i++) { | |
9074 | ps_ctrl = I915_READ(SKL_PS_CTRL(crtc->pipe, i)); | |
9075 | if (ps_ctrl & PS_SCALER_EN && !(ps_ctrl & PS_PLANE_SEL_MASK)) { | |
9076 | id = i; | |
9077 | pipe_config->pch_pfit.enabled = true; | |
9078 | pipe_config->pch_pfit.pos = I915_READ(SKL_PS_WIN_POS(crtc->pipe, i)); | |
9079 | pipe_config->pch_pfit.size = I915_READ(SKL_PS_WIN_SZ(crtc->pipe, i)); | |
9080 | break; | |
9081 | } | |
9082 | } | |
bd2e244f | 9083 | |
a1b2278e CK |
9084 | scaler_state->scaler_id = id; |
9085 | if (id >= 0) { | |
9086 | scaler_state->scaler_users |= (1 << SKL_CRTC_INDEX); | |
9087 | } else { | |
9088 | scaler_state->scaler_users &= ~(1 << SKL_CRTC_INDEX); | |
bd2e244f JB |
9089 | } |
9090 | } | |
9091 | ||
5724dbd1 DL |
9092 | static void |
9093 | skylake_get_initial_plane_config(struct intel_crtc *crtc, | |
9094 | struct intel_initial_plane_config *plane_config) | |
bc8d7dff DL |
9095 | { |
9096 | struct drm_device *dev = crtc->base.dev; | |
9097 | struct drm_i915_private *dev_priv = dev->dev_private; | |
40f46283 | 9098 | u32 val, base, offset, stride_mult, tiling; |
bc8d7dff DL |
9099 | int pipe = crtc->pipe; |
9100 | int fourcc, pixel_format; | |
6761dd31 | 9101 | unsigned int aligned_height; |
bc8d7dff | 9102 | struct drm_framebuffer *fb; |
1b842c89 | 9103 | struct intel_framebuffer *intel_fb; |
bc8d7dff | 9104 | |
d9806c9f | 9105 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); |
1b842c89 | 9106 | if (!intel_fb) { |
bc8d7dff DL |
9107 | DRM_DEBUG_KMS("failed to alloc fb\n"); |
9108 | return; | |
9109 | } | |
9110 | ||
1b842c89 DL |
9111 | fb = &intel_fb->base; |
9112 | ||
bc8d7dff | 9113 | val = I915_READ(PLANE_CTL(pipe, 0)); |
42a7b088 DL |
9114 | if (!(val & PLANE_CTL_ENABLE)) |
9115 | goto error; | |
9116 | ||
bc8d7dff DL |
9117 | pixel_format = val & PLANE_CTL_FORMAT_MASK; |
9118 | fourcc = skl_format_to_fourcc(pixel_format, | |
9119 | val & PLANE_CTL_ORDER_RGBX, | |
9120 | val & PLANE_CTL_ALPHA_MASK); | |
9121 | fb->pixel_format = fourcc; | |
9122 | fb->bits_per_pixel = drm_format_plane_cpp(fourcc, 0) * 8; | |
9123 | ||
40f46283 DL |
9124 | tiling = val & PLANE_CTL_TILED_MASK; |
9125 | switch (tiling) { | |
9126 | case PLANE_CTL_TILED_LINEAR: | |
9127 | fb->modifier[0] = DRM_FORMAT_MOD_NONE; | |
9128 | break; | |
9129 | case PLANE_CTL_TILED_X: | |
9130 | plane_config->tiling = I915_TILING_X; | |
9131 | fb->modifier[0] = I915_FORMAT_MOD_X_TILED; | |
9132 | break; | |
9133 | case PLANE_CTL_TILED_Y: | |
9134 | fb->modifier[0] = I915_FORMAT_MOD_Y_TILED; | |
9135 | break; | |
9136 | case PLANE_CTL_TILED_YF: | |
9137 | fb->modifier[0] = I915_FORMAT_MOD_Yf_TILED; | |
9138 | break; | |
9139 | default: | |
9140 | MISSING_CASE(tiling); | |
9141 | goto error; | |
9142 | } | |
9143 | ||
bc8d7dff DL |
9144 | base = I915_READ(PLANE_SURF(pipe, 0)) & 0xfffff000; |
9145 | plane_config->base = base; | |
9146 | ||
9147 | offset = I915_READ(PLANE_OFFSET(pipe, 0)); | |
9148 | ||
9149 | val = I915_READ(PLANE_SIZE(pipe, 0)); | |
9150 | fb->height = ((val >> 16) & 0xfff) + 1; | |
9151 | fb->width = ((val >> 0) & 0x1fff) + 1; | |
9152 | ||
9153 | val = I915_READ(PLANE_STRIDE(pipe, 0)); | |
7b49f948 | 9154 | stride_mult = intel_fb_stride_alignment(dev_priv, fb->modifier[0], |
40f46283 | 9155 | fb->pixel_format); |
bc8d7dff DL |
9156 | fb->pitches[0] = (val & 0x3ff) * stride_mult; |
9157 | ||
9158 | aligned_height = intel_fb_align_height(dev, fb->height, | |
091df6cb DV |
9159 | fb->pixel_format, |
9160 | fb->modifier[0]); | |
bc8d7dff | 9161 | |
f37b5c2b | 9162 | plane_config->size = fb->pitches[0] * aligned_height; |
bc8d7dff DL |
9163 | |
9164 | DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n", | |
9165 | pipe_name(pipe), fb->width, fb->height, | |
9166 | fb->bits_per_pixel, base, fb->pitches[0], | |
9167 | plane_config->size); | |
9168 | ||
2d14030b | 9169 | plane_config->fb = intel_fb; |
bc8d7dff DL |
9170 | return; |
9171 | ||
9172 | error: | |
9173 | kfree(fb); | |
9174 | } | |
9175 | ||
2fa2fe9a | 9176 | static void ironlake_get_pfit_config(struct intel_crtc *crtc, |
5cec258b | 9177 | struct intel_crtc_state *pipe_config) |
2fa2fe9a DV |
9178 | { |
9179 | struct drm_device *dev = crtc->base.dev; | |
9180 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9181 | uint32_t tmp; | |
9182 | ||
9183 | tmp = I915_READ(PF_CTL(crtc->pipe)); | |
9184 | ||
9185 | if (tmp & PF_ENABLE) { | |
fd4daa9c | 9186 | pipe_config->pch_pfit.enabled = true; |
2fa2fe9a DV |
9187 | pipe_config->pch_pfit.pos = I915_READ(PF_WIN_POS(crtc->pipe)); |
9188 | pipe_config->pch_pfit.size = I915_READ(PF_WIN_SZ(crtc->pipe)); | |
cb8b2a30 DV |
9189 | |
9190 | /* We currently do not free assignements of panel fitters on | |
9191 | * ivb/hsw (since we don't use the higher upscaling modes which | |
9192 | * differentiates them) so just WARN about this case for now. */ | |
9193 | if (IS_GEN7(dev)) { | |
9194 | WARN_ON((tmp & PF_PIPE_SEL_MASK_IVB) != | |
9195 | PF_PIPE_SEL_IVB(crtc->pipe)); | |
9196 | } | |
2fa2fe9a | 9197 | } |
79e53945 JB |
9198 | } |
9199 | ||
5724dbd1 DL |
9200 | static void |
9201 | ironlake_get_initial_plane_config(struct intel_crtc *crtc, | |
9202 | struct intel_initial_plane_config *plane_config) | |
4c6baa59 JB |
9203 | { |
9204 | struct drm_device *dev = crtc->base.dev; | |
9205 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9206 | u32 val, base, offset; | |
aeee5a49 | 9207 | int pipe = crtc->pipe; |
4c6baa59 | 9208 | int fourcc, pixel_format; |
6761dd31 | 9209 | unsigned int aligned_height; |
b113d5ee | 9210 | struct drm_framebuffer *fb; |
1b842c89 | 9211 | struct intel_framebuffer *intel_fb; |
4c6baa59 | 9212 | |
42a7b088 DL |
9213 | val = I915_READ(DSPCNTR(pipe)); |
9214 | if (!(val & DISPLAY_PLANE_ENABLE)) | |
9215 | return; | |
9216 | ||
d9806c9f | 9217 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); |
1b842c89 | 9218 | if (!intel_fb) { |
4c6baa59 JB |
9219 | DRM_DEBUG_KMS("failed to alloc fb\n"); |
9220 | return; | |
9221 | } | |
9222 | ||
1b842c89 DL |
9223 | fb = &intel_fb->base; |
9224 | ||
18c5247e DV |
9225 | if (INTEL_INFO(dev)->gen >= 4) { |
9226 | if (val & DISPPLANE_TILED) { | |
49af449b | 9227 | plane_config->tiling = I915_TILING_X; |
18c5247e DV |
9228 | fb->modifier[0] = I915_FORMAT_MOD_X_TILED; |
9229 | } | |
9230 | } | |
4c6baa59 JB |
9231 | |
9232 | pixel_format = val & DISPPLANE_PIXFORMAT_MASK; | |
b35d63fa | 9233 | fourcc = i9xx_format_to_fourcc(pixel_format); |
b113d5ee DL |
9234 | fb->pixel_format = fourcc; |
9235 | fb->bits_per_pixel = drm_format_plane_cpp(fourcc, 0) * 8; | |
4c6baa59 | 9236 | |
aeee5a49 | 9237 | base = I915_READ(DSPSURF(pipe)) & 0xfffff000; |
4c6baa59 | 9238 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) { |
aeee5a49 | 9239 | offset = I915_READ(DSPOFFSET(pipe)); |
4c6baa59 | 9240 | } else { |
49af449b | 9241 | if (plane_config->tiling) |
aeee5a49 | 9242 | offset = I915_READ(DSPTILEOFF(pipe)); |
4c6baa59 | 9243 | else |
aeee5a49 | 9244 | offset = I915_READ(DSPLINOFF(pipe)); |
4c6baa59 JB |
9245 | } |
9246 | plane_config->base = base; | |
9247 | ||
9248 | val = I915_READ(PIPESRC(pipe)); | |
b113d5ee DL |
9249 | fb->width = ((val >> 16) & 0xfff) + 1; |
9250 | fb->height = ((val >> 0) & 0xfff) + 1; | |
4c6baa59 JB |
9251 | |
9252 | val = I915_READ(DSPSTRIDE(pipe)); | |
b113d5ee | 9253 | fb->pitches[0] = val & 0xffffffc0; |
4c6baa59 | 9254 | |
b113d5ee | 9255 | aligned_height = intel_fb_align_height(dev, fb->height, |
091df6cb DV |
9256 | fb->pixel_format, |
9257 | fb->modifier[0]); | |
4c6baa59 | 9258 | |
f37b5c2b | 9259 | plane_config->size = fb->pitches[0] * aligned_height; |
4c6baa59 | 9260 | |
2844a921 DL |
9261 | DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n", |
9262 | pipe_name(pipe), fb->width, fb->height, | |
9263 | fb->bits_per_pixel, base, fb->pitches[0], | |
9264 | plane_config->size); | |
b113d5ee | 9265 | |
2d14030b | 9266 | plane_config->fb = intel_fb; |
4c6baa59 JB |
9267 | } |
9268 | ||
0e8ffe1b | 9269 | static bool ironlake_get_pipe_config(struct intel_crtc *crtc, |
5cec258b | 9270 | struct intel_crtc_state *pipe_config) |
0e8ffe1b DV |
9271 | { |
9272 | struct drm_device *dev = crtc->base.dev; | |
9273 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1729050e | 9274 | enum intel_display_power_domain power_domain; |
0e8ffe1b | 9275 | uint32_t tmp; |
1729050e | 9276 | bool ret; |
0e8ffe1b | 9277 | |
1729050e ID |
9278 | power_domain = POWER_DOMAIN_PIPE(crtc->pipe); |
9279 | if (!intel_display_power_get_if_enabled(dev_priv, power_domain)) | |
930e8c9e PZ |
9280 | return false; |
9281 | ||
e143a21c | 9282 | pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe; |
8106ddbd | 9283 | pipe_config->shared_dpll = NULL; |
eccb140b | 9284 | |
1729050e | 9285 | ret = false; |
0e8ffe1b DV |
9286 | tmp = I915_READ(PIPECONF(crtc->pipe)); |
9287 | if (!(tmp & PIPECONF_ENABLE)) | |
1729050e | 9288 | goto out; |
0e8ffe1b | 9289 | |
42571aef VS |
9290 | switch (tmp & PIPECONF_BPC_MASK) { |
9291 | case PIPECONF_6BPC: | |
9292 | pipe_config->pipe_bpp = 18; | |
9293 | break; | |
9294 | case PIPECONF_8BPC: | |
9295 | pipe_config->pipe_bpp = 24; | |
9296 | break; | |
9297 | case PIPECONF_10BPC: | |
9298 | pipe_config->pipe_bpp = 30; | |
9299 | break; | |
9300 | case PIPECONF_12BPC: | |
9301 | pipe_config->pipe_bpp = 36; | |
9302 | break; | |
9303 | default: | |
9304 | break; | |
9305 | } | |
9306 | ||
b5a9fa09 DV |
9307 | if (tmp & PIPECONF_COLOR_RANGE_SELECT) |
9308 | pipe_config->limited_color_range = true; | |
9309 | ||
ab9412ba | 9310 | if (I915_READ(PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) { |
66e985c0 | 9311 | struct intel_shared_dpll *pll; |
8106ddbd | 9312 | enum intel_dpll_id pll_id; |
66e985c0 | 9313 | |
88adfff1 DV |
9314 | pipe_config->has_pch_encoder = true; |
9315 | ||
627eb5a3 DV |
9316 | tmp = I915_READ(FDI_RX_CTL(crtc->pipe)); |
9317 | pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >> | |
9318 | FDI_DP_PORT_WIDTH_SHIFT) + 1; | |
72419203 DV |
9319 | |
9320 | ironlake_get_fdi_m_n_config(crtc, pipe_config); | |
6c49f241 | 9321 | |
2d1fe073 | 9322 | if (HAS_PCH_IBX(dev_priv)) { |
8106ddbd | 9323 | pll_id = (enum intel_dpll_id) crtc->pipe; |
c0d43d62 DV |
9324 | } else { |
9325 | tmp = I915_READ(PCH_DPLL_SEL); | |
9326 | if (tmp & TRANS_DPLLB_SEL(crtc->pipe)) | |
8106ddbd | 9327 | pll_id = DPLL_ID_PCH_PLL_B; |
c0d43d62 | 9328 | else |
8106ddbd | 9329 | pll_id= DPLL_ID_PCH_PLL_A; |
c0d43d62 | 9330 | } |
66e985c0 | 9331 | |
8106ddbd ACO |
9332 | pipe_config->shared_dpll = |
9333 | intel_get_shared_dpll_by_id(dev_priv, pll_id); | |
9334 | pll = pipe_config->shared_dpll; | |
66e985c0 | 9335 | |
2edd6443 ACO |
9336 | WARN_ON(!pll->funcs.get_hw_state(dev_priv, pll, |
9337 | &pipe_config->dpll_hw_state)); | |
c93f54cf DV |
9338 | |
9339 | tmp = pipe_config->dpll_hw_state.dpll; | |
9340 | pipe_config->pixel_multiplier = | |
9341 | ((tmp & PLL_REF_SDVO_HDMI_MULTIPLIER_MASK) | |
9342 | >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT) + 1; | |
18442d08 VS |
9343 | |
9344 | ironlake_pch_clock_get(crtc, pipe_config); | |
6c49f241 DV |
9345 | } else { |
9346 | pipe_config->pixel_multiplier = 1; | |
627eb5a3 DV |
9347 | } |
9348 | ||
1bd1bd80 | 9349 | intel_get_pipe_timings(crtc, pipe_config); |
bc58be60 | 9350 | intel_get_pipe_src_size(crtc, pipe_config); |
1bd1bd80 | 9351 | |
2fa2fe9a DV |
9352 | ironlake_get_pfit_config(crtc, pipe_config); |
9353 | ||
1729050e ID |
9354 | ret = true; |
9355 | ||
9356 | out: | |
9357 | intel_display_power_put(dev_priv, power_domain); | |
9358 | ||
9359 | return ret; | |
0e8ffe1b DV |
9360 | } |
9361 | ||
be256dc7 PZ |
9362 | static void assert_can_disable_lcpll(struct drm_i915_private *dev_priv) |
9363 | { | |
9364 | struct drm_device *dev = dev_priv->dev; | |
be256dc7 | 9365 | struct intel_crtc *crtc; |
be256dc7 | 9366 | |
d3fcc808 | 9367 | for_each_intel_crtc(dev, crtc) |
e2c719b7 | 9368 | I915_STATE_WARN(crtc->active, "CRTC for pipe %c enabled\n", |
be256dc7 PZ |
9369 | pipe_name(crtc->pipe)); |
9370 | ||
e2c719b7 RC |
9371 | I915_STATE_WARN(I915_READ(HSW_PWR_WELL_DRIVER), "Power well on\n"); |
9372 | I915_STATE_WARN(I915_READ(SPLL_CTL) & SPLL_PLL_ENABLE, "SPLL enabled\n"); | |
01403de3 VS |
9373 | I915_STATE_WARN(I915_READ(WRPLL_CTL(0)) & WRPLL_PLL_ENABLE, "WRPLL1 enabled\n"); |
9374 | I915_STATE_WARN(I915_READ(WRPLL_CTL(1)) & WRPLL_PLL_ENABLE, "WRPLL2 enabled\n"); | |
e2c719b7 RC |
9375 | I915_STATE_WARN(I915_READ(PCH_PP_STATUS) & PP_ON, "Panel power on\n"); |
9376 | I915_STATE_WARN(I915_READ(BLC_PWM_CPU_CTL2) & BLM_PWM_ENABLE, | |
be256dc7 | 9377 | "CPU PWM1 enabled\n"); |
c5107b87 | 9378 | if (IS_HASWELL(dev)) |
e2c719b7 | 9379 | I915_STATE_WARN(I915_READ(HSW_BLC_PWM2_CTL) & BLM_PWM_ENABLE, |
c5107b87 | 9380 | "CPU PWM2 enabled\n"); |
e2c719b7 | 9381 | I915_STATE_WARN(I915_READ(BLC_PWM_PCH_CTL1) & BLM_PCH_PWM_ENABLE, |
be256dc7 | 9382 | "PCH PWM1 enabled\n"); |
e2c719b7 | 9383 | I915_STATE_WARN(I915_READ(UTIL_PIN_CTL) & UTIL_PIN_ENABLE, |
be256dc7 | 9384 | "Utility pin enabled\n"); |
e2c719b7 | 9385 | I915_STATE_WARN(I915_READ(PCH_GTC_CTL) & PCH_GTC_ENABLE, "PCH GTC enabled\n"); |
be256dc7 | 9386 | |
9926ada1 PZ |
9387 | /* |
9388 | * In theory we can still leave IRQs enabled, as long as only the HPD | |
9389 | * interrupts remain enabled. We used to check for that, but since it's | |
9390 | * gen-specific and since we only disable LCPLL after we fully disable | |
9391 | * the interrupts, the check below should be enough. | |
9392 | */ | |
e2c719b7 | 9393 | I915_STATE_WARN(intel_irqs_enabled(dev_priv), "IRQs enabled\n"); |
be256dc7 PZ |
9394 | } |
9395 | ||
9ccd5aeb PZ |
9396 | static uint32_t hsw_read_dcomp(struct drm_i915_private *dev_priv) |
9397 | { | |
9398 | struct drm_device *dev = dev_priv->dev; | |
9399 | ||
9400 | if (IS_HASWELL(dev)) | |
9401 | return I915_READ(D_COMP_HSW); | |
9402 | else | |
9403 | return I915_READ(D_COMP_BDW); | |
9404 | } | |
9405 | ||
3c4c9b81 PZ |
9406 | static void hsw_write_dcomp(struct drm_i915_private *dev_priv, uint32_t val) |
9407 | { | |
9408 | struct drm_device *dev = dev_priv->dev; | |
9409 | ||
9410 | if (IS_HASWELL(dev)) { | |
9411 | mutex_lock(&dev_priv->rps.hw_lock); | |
9412 | if (sandybridge_pcode_write(dev_priv, GEN6_PCODE_WRITE_D_COMP, | |
9413 | val)) | |
f475dadf | 9414 | DRM_ERROR("Failed to write to D_COMP\n"); |
3c4c9b81 PZ |
9415 | mutex_unlock(&dev_priv->rps.hw_lock); |
9416 | } else { | |
9ccd5aeb PZ |
9417 | I915_WRITE(D_COMP_BDW, val); |
9418 | POSTING_READ(D_COMP_BDW); | |
3c4c9b81 | 9419 | } |
be256dc7 PZ |
9420 | } |
9421 | ||
9422 | /* | |
9423 | * This function implements pieces of two sequences from BSpec: | |
9424 | * - Sequence for display software to disable LCPLL | |
9425 | * - Sequence for display software to allow package C8+ | |
9426 | * The steps implemented here are just the steps that actually touch the LCPLL | |
9427 | * register. Callers should take care of disabling all the display engine | |
9428 | * functions, doing the mode unset, fixing interrupts, etc. | |
9429 | */ | |
6ff58d53 PZ |
9430 | static void hsw_disable_lcpll(struct drm_i915_private *dev_priv, |
9431 | bool switch_to_fclk, bool allow_power_down) | |
be256dc7 PZ |
9432 | { |
9433 | uint32_t val; | |
9434 | ||
9435 | assert_can_disable_lcpll(dev_priv); | |
9436 | ||
9437 | val = I915_READ(LCPLL_CTL); | |
9438 | ||
9439 | if (switch_to_fclk) { | |
9440 | val |= LCPLL_CD_SOURCE_FCLK; | |
9441 | I915_WRITE(LCPLL_CTL, val); | |
9442 | ||
fa7c13e5 ID |
9443 | if (wait_for_us(I915_READ(LCPLL_CTL) & |
9444 | LCPLL_CD_SOURCE_FCLK_DONE, 1)) | |
be256dc7 PZ |
9445 | DRM_ERROR("Switching to FCLK failed\n"); |
9446 | ||
9447 | val = I915_READ(LCPLL_CTL); | |
9448 | } | |
9449 | ||
9450 | val |= LCPLL_PLL_DISABLE; | |
9451 | I915_WRITE(LCPLL_CTL, val); | |
9452 | POSTING_READ(LCPLL_CTL); | |
9453 | ||
9454 | if (wait_for((I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK) == 0, 1)) | |
9455 | DRM_ERROR("LCPLL still locked\n"); | |
9456 | ||
9ccd5aeb | 9457 | val = hsw_read_dcomp(dev_priv); |
be256dc7 | 9458 | val |= D_COMP_COMP_DISABLE; |
3c4c9b81 | 9459 | hsw_write_dcomp(dev_priv, val); |
be256dc7 PZ |
9460 | ndelay(100); |
9461 | ||
9ccd5aeb PZ |
9462 | if (wait_for((hsw_read_dcomp(dev_priv) & D_COMP_RCOMP_IN_PROGRESS) == 0, |
9463 | 1)) | |
be256dc7 PZ |
9464 | DRM_ERROR("D_COMP RCOMP still in progress\n"); |
9465 | ||
9466 | if (allow_power_down) { | |
9467 | val = I915_READ(LCPLL_CTL); | |
9468 | val |= LCPLL_POWER_DOWN_ALLOW; | |
9469 | I915_WRITE(LCPLL_CTL, val); | |
9470 | POSTING_READ(LCPLL_CTL); | |
9471 | } | |
9472 | } | |
9473 | ||
9474 | /* | |
9475 | * Fully restores LCPLL, disallowing power down and switching back to LCPLL | |
9476 | * source. | |
9477 | */ | |
6ff58d53 | 9478 | static void hsw_restore_lcpll(struct drm_i915_private *dev_priv) |
be256dc7 PZ |
9479 | { |
9480 | uint32_t val; | |
9481 | ||
9482 | val = I915_READ(LCPLL_CTL); | |
9483 | ||
9484 | if ((val & (LCPLL_PLL_LOCK | LCPLL_PLL_DISABLE | LCPLL_CD_SOURCE_FCLK | | |
9485 | LCPLL_POWER_DOWN_ALLOW)) == LCPLL_PLL_LOCK) | |
9486 | return; | |
9487 | ||
a8a8bd54 PZ |
9488 | /* |
9489 | * Make sure we're not on PC8 state before disabling PC8, otherwise | |
9490 | * we'll hang the machine. To prevent PC8 state, just enable force_wake. | |
a8a8bd54 | 9491 | */ |
59bad947 | 9492 | intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL); |
215733fa | 9493 | |
be256dc7 PZ |
9494 | if (val & LCPLL_POWER_DOWN_ALLOW) { |
9495 | val &= ~LCPLL_POWER_DOWN_ALLOW; | |
9496 | I915_WRITE(LCPLL_CTL, val); | |
35d8f2eb | 9497 | POSTING_READ(LCPLL_CTL); |
be256dc7 PZ |
9498 | } |
9499 | ||
9ccd5aeb | 9500 | val = hsw_read_dcomp(dev_priv); |
be256dc7 PZ |
9501 | val |= D_COMP_COMP_FORCE; |
9502 | val &= ~D_COMP_COMP_DISABLE; | |
3c4c9b81 | 9503 | hsw_write_dcomp(dev_priv, val); |
be256dc7 PZ |
9504 | |
9505 | val = I915_READ(LCPLL_CTL); | |
9506 | val &= ~LCPLL_PLL_DISABLE; | |
9507 | I915_WRITE(LCPLL_CTL, val); | |
9508 | ||
9509 | if (wait_for(I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK, 5)) | |
9510 | DRM_ERROR("LCPLL not locked yet\n"); | |
9511 | ||
9512 | if (val & LCPLL_CD_SOURCE_FCLK) { | |
9513 | val = I915_READ(LCPLL_CTL); | |
9514 | val &= ~LCPLL_CD_SOURCE_FCLK; | |
9515 | I915_WRITE(LCPLL_CTL, val); | |
9516 | ||
fa7c13e5 ID |
9517 | if (wait_for_us((I915_READ(LCPLL_CTL) & |
9518 | LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1)) | |
be256dc7 PZ |
9519 | DRM_ERROR("Switching back to LCPLL failed\n"); |
9520 | } | |
215733fa | 9521 | |
59bad947 | 9522 | intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); |
b6283055 | 9523 | intel_update_cdclk(dev_priv->dev); |
be256dc7 PZ |
9524 | } |
9525 | ||
765dab67 PZ |
9526 | /* |
9527 | * Package states C8 and deeper are really deep PC states that can only be | |
9528 | * reached when all the devices on the system allow it, so even if the graphics | |
9529 | * device allows PC8+, it doesn't mean the system will actually get to these | |
9530 | * states. Our driver only allows PC8+ when going into runtime PM. | |
9531 | * | |
9532 | * The requirements for PC8+ are that all the outputs are disabled, the power | |
9533 | * well is disabled and most interrupts are disabled, and these are also | |
9534 | * requirements for runtime PM. When these conditions are met, we manually do | |
9535 | * the other conditions: disable the interrupts, clocks and switch LCPLL refclk | |
9536 | * to Fclk. If we're in PC8+ and we get an non-hotplug interrupt, we can hard | |
9537 | * hang the machine. | |
9538 | * | |
9539 | * When we really reach PC8 or deeper states (not just when we allow it) we lose | |
9540 | * the state of some registers, so when we come back from PC8+ we need to | |
9541 | * restore this state. We don't get into PC8+ if we're not in RC6, so we don't | |
9542 | * need to take care of the registers kept by RC6. Notice that this happens even | |
9543 | * if we don't put the device in PCI D3 state (which is what currently happens | |
9544 | * because of the runtime PM support). | |
9545 | * | |
9546 | * For more, read "Display Sequences for Package C8" on the hardware | |
9547 | * documentation. | |
9548 | */ | |
a14cb6fc | 9549 | void hsw_enable_pc8(struct drm_i915_private *dev_priv) |
c67a470b | 9550 | { |
c67a470b PZ |
9551 | struct drm_device *dev = dev_priv->dev; |
9552 | uint32_t val; | |
9553 | ||
c67a470b PZ |
9554 | DRM_DEBUG_KMS("Enabling package C8+\n"); |
9555 | ||
c2699524 | 9556 | if (HAS_PCH_LPT_LP(dev)) { |
c67a470b PZ |
9557 | val = I915_READ(SOUTH_DSPCLK_GATE_D); |
9558 | val &= ~PCH_LP_PARTITION_LEVEL_DISABLE; | |
9559 | I915_WRITE(SOUTH_DSPCLK_GATE_D, val); | |
9560 | } | |
9561 | ||
9562 | lpt_disable_clkout_dp(dev); | |
c67a470b PZ |
9563 | hsw_disable_lcpll(dev_priv, true, true); |
9564 | } | |
9565 | ||
a14cb6fc | 9566 | void hsw_disable_pc8(struct drm_i915_private *dev_priv) |
c67a470b PZ |
9567 | { |
9568 | struct drm_device *dev = dev_priv->dev; | |
9569 | uint32_t val; | |
9570 | ||
c67a470b PZ |
9571 | DRM_DEBUG_KMS("Disabling package C8+\n"); |
9572 | ||
9573 | hsw_restore_lcpll(dev_priv); | |
c67a470b PZ |
9574 | lpt_init_pch_refclk(dev); |
9575 | ||
c2699524 | 9576 | if (HAS_PCH_LPT_LP(dev)) { |
c67a470b PZ |
9577 | val = I915_READ(SOUTH_DSPCLK_GATE_D); |
9578 | val |= PCH_LP_PARTITION_LEVEL_DISABLE; | |
9579 | I915_WRITE(SOUTH_DSPCLK_GATE_D, val); | |
9580 | } | |
c67a470b PZ |
9581 | } |
9582 | ||
27c329ed | 9583 | static void broxton_modeset_commit_cdclk(struct drm_atomic_state *old_state) |
f8437dd1 | 9584 | { |
a821fc46 | 9585 | struct drm_device *dev = old_state->dev; |
1a617b77 ML |
9586 | struct intel_atomic_state *old_intel_state = |
9587 | to_intel_atomic_state(old_state); | |
9588 | unsigned int req_cdclk = old_intel_state->dev_cdclk; | |
f8437dd1 | 9589 | |
c6c4696f | 9590 | broxton_set_cdclk(to_i915(dev), req_cdclk); |
f8437dd1 VK |
9591 | } |
9592 | ||
b432e5cf | 9593 | /* compute the max rate for new configuration */ |
27c329ed | 9594 | static int ilk_max_pixel_rate(struct drm_atomic_state *state) |
b432e5cf | 9595 | { |
565602d7 ML |
9596 | struct intel_atomic_state *intel_state = to_intel_atomic_state(state); |
9597 | struct drm_i915_private *dev_priv = state->dev->dev_private; | |
9598 | struct drm_crtc *crtc; | |
9599 | struct drm_crtc_state *cstate; | |
27c329ed | 9600 | struct intel_crtc_state *crtc_state; |
565602d7 ML |
9601 | unsigned max_pixel_rate = 0, i; |
9602 | enum pipe pipe; | |
b432e5cf | 9603 | |
565602d7 ML |
9604 | memcpy(intel_state->min_pixclk, dev_priv->min_pixclk, |
9605 | sizeof(intel_state->min_pixclk)); | |
27c329ed | 9606 | |
565602d7 ML |
9607 | for_each_crtc_in_state(state, crtc, cstate, i) { |
9608 | int pixel_rate; | |
27c329ed | 9609 | |
565602d7 ML |
9610 | crtc_state = to_intel_crtc_state(cstate); |
9611 | if (!crtc_state->base.enable) { | |
9612 | intel_state->min_pixclk[i] = 0; | |
b432e5cf | 9613 | continue; |
565602d7 | 9614 | } |
b432e5cf | 9615 | |
27c329ed | 9616 | pixel_rate = ilk_pipe_pixel_rate(crtc_state); |
b432e5cf VS |
9617 | |
9618 | /* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */ | |
565602d7 | 9619 | if (IS_BROADWELL(dev_priv) && crtc_state->ips_enabled) |
b432e5cf VS |
9620 | pixel_rate = DIV_ROUND_UP(pixel_rate * 100, 95); |
9621 | ||
565602d7 | 9622 | intel_state->min_pixclk[i] = pixel_rate; |
b432e5cf VS |
9623 | } |
9624 | ||
565602d7 ML |
9625 | for_each_pipe(dev_priv, pipe) |
9626 | max_pixel_rate = max(intel_state->min_pixclk[pipe], max_pixel_rate); | |
9627 | ||
b432e5cf VS |
9628 | return max_pixel_rate; |
9629 | } | |
9630 | ||
9631 | static void broadwell_set_cdclk(struct drm_device *dev, int cdclk) | |
9632 | { | |
9633 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9634 | uint32_t val, data; | |
9635 | int ret; | |
9636 | ||
9637 | if (WARN((I915_READ(LCPLL_CTL) & | |
9638 | (LCPLL_PLL_DISABLE | LCPLL_PLL_LOCK | | |
9639 | LCPLL_CD_CLOCK_DISABLE | LCPLL_ROOT_CD_CLOCK_DISABLE | | |
9640 | LCPLL_CD2X_CLOCK_DISABLE | LCPLL_POWER_DOWN_ALLOW | | |
9641 | LCPLL_CD_SOURCE_FCLK)) != LCPLL_PLL_LOCK, | |
9642 | "trying to change cdclk frequency with cdclk not enabled\n")) | |
9643 | return; | |
9644 | ||
9645 | mutex_lock(&dev_priv->rps.hw_lock); | |
9646 | ret = sandybridge_pcode_write(dev_priv, | |
9647 | BDW_PCODE_DISPLAY_FREQ_CHANGE_REQ, 0x0); | |
9648 | mutex_unlock(&dev_priv->rps.hw_lock); | |
9649 | if (ret) { | |
9650 | DRM_ERROR("failed to inform pcode about cdclk change\n"); | |
9651 | return; | |
9652 | } | |
9653 | ||
9654 | val = I915_READ(LCPLL_CTL); | |
9655 | val |= LCPLL_CD_SOURCE_FCLK; | |
9656 | I915_WRITE(LCPLL_CTL, val); | |
9657 | ||
5ba00178 TU |
9658 | if (wait_for_us(I915_READ(LCPLL_CTL) & |
9659 | LCPLL_CD_SOURCE_FCLK_DONE, 1)) | |
b432e5cf VS |
9660 | DRM_ERROR("Switching to FCLK failed\n"); |
9661 | ||
9662 | val = I915_READ(LCPLL_CTL); | |
9663 | val &= ~LCPLL_CLK_FREQ_MASK; | |
9664 | ||
9665 | switch (cdclk) { | |
9666 | case 450000: | |
9667 | val |= LCPLL_CLK_FREQ_450; | |
9668 | data = 0; | |
9669 | break; | |
9670 | case 540000: | |
9671 | val |= LCPLL_CLK_FREQ_54O_BDW; | |
9672 | data = 1; | |
9673 | break; | |
9674 | case 337500: | |
9675 | val |= LCPLL_CLK_FREQ_337_5_BDW; | |
9676 | data = 2; | |
9677 | break; | |
9678 | case 675000: | |
9679 | val |= LCPLL_CLK_FREQ_675_BDW; | |
9680 | data = 3; | |
9681 | break; | |
9682 | default: | |
9683 | WARN(1, "invalid cdclk frequency\n"); | |
9684 | return; | |
9685 | } | |
9686 | ||
9687 | I915_WRITE(LCPLL_CTL, val); | |
9688 | ||
9689 | val = I915_READ(LCPLL_CTL); | |
9690 | val &= ~LCPLL_CD_SOURCE_FCLK; | |
9691 | I915_WRITE(LCPLL_CTL, val); | |
9692 | ||
5ba00178 TU |
9693 | if (wait_for_us((I915_READ(LCPLL_CTL) & |
9694 | LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1)) | |
b432e5cf VS |
9695 | DRM_ERROR("Switching back to LCPLL failed\n"); |
9696 | ||
9697 | mutex_lock(&dev_priv->rps.hw_lock); | |
9698 | sandybridge_pcode_write(dev_priv, HSW_PCODE_DE_WRITE_FREQ_REQ, data); | |
9699 | mutex_unlock(&dev_priv->rps.hw_lock); | |
9700 | ||
a04e23d4 VS |
9701 | I915_WRITE(CDCLK_FREQ, DIV_ROUND_CLOSEST(cdclk, 1000) - 1); |
9702 | ||
b432e5cf VS |
9703 | intel_update_cdclk(dev); |
9704 | ||
9705 | WARN(cdclk != dev_priv->cdclk_freq, | |
9706 | "cdclk requested %d kHz but got %d kHz\n", | |
9707 | cdclk, dev_priv->cdclk_freq); | |
9708 | } | |
9709 | ||
27c329ed | 9710 | static int broadwell_modeset_calc_cdclk(struct drm_atomic_state *state) |
b432e5cf | 9711 | { |
27c329ed | 9712 | struct drm_i915_private *dev_priv = to_i915(state->dev); |
1a617b77 | 9713 | struct intel_atomic_state *intel_state = to_intel_atomic_state(state); |
27c329ed | 9714 | int max_pixclk = ilk_max_pixel_rate(state); |
b432e5cf VS |
9715 | int cdclk; |
9716 | ||
9717 | /* | |
9718 | * FIXME should also account for plane ratio | |
9719 | * once 64bpp pixel formats are supported. | |
9720 | */ | |
27c329ed | 9721 | if (max_pixclk > 540000) |
b432e5cf | 9722 | cdclk = 675000; |
27c329ed | 9723 | else if (max_pixclk > 450000) |
b432e5cf | 9724 | cdclk = 540000; |
27c329ed | 9725 | else if (max_pixclk > 337500) |
b432e5cf VS |
9726 | cdclk = 450000; |
9727 | else | |
9728 | cdclk = 337500; | |
9729 | ||
b432e5cf | 9730 | if (cdclk > dev_priv->max_cdclk_freq) { |
63ba534e ML |
9731 | DRM_DEBUG_KMS("requested cdclk (%d kHz) exceeds max (%d kHz)\n", |
9732 | cdclk, dev_priv->max_cdclk_freq); | |
9733 | return -EINVAL; | |
b432e5cf VS |
9734 | } |
9735 | ||
1a617b77 ML |
9736 | intel_state->cdclk = intel_state->dev_cdclk = cdclk; |
9737 | if (!intel_state->active_crtcs) | |
9738 | intel_state->dev_cdclk = 337500; | |
b432e5cf VS |
9739 | |
9740 | return 0; | |
9741 | } | |
9742 | ||
27c329ed | 9743 | static void broadwell_modeset_commit_cdclk(struct drm_atomic_state *old_state) |
b432e5cf | 9744 | { |
27c329ed | 9745 | struct drm_device *dev = old_state->dev; |
1a617b77 ML |
9746 | struct intel_atomic_state *old_intel_state = |
9747 | to_intel_atomic_state(old_state); | |
9748 | unsigned req_cdclk = old_intel_state->dev_cdclk; | |
b432e5cf | 9749 | |
27c329ed | 9750 | broadwell_set_cdclk(dev, req_cdclk); |
b432e5cf VS |
9751 | } |
9752 | ||
190f68c5 ACO |
9753 | static int haswell_crtc_compute_clock(struct intel_crtc *crtc, |
9754 | struct intel_crtc_state *crtc_state) | |
09b4ddf9 | 9755 | { |
af3997b5 MK |
9756 | struct intel_encoder *intel_encoder = |
9757 | intel_ddi_get_crtc_new_encoder(crtc_state); | |
9758 | ||
9759 | if (intel_encoder->type != INTEL_OUTPUT_DSI) { | |
9760 | if (!intel_ddi_pll_select(crtc, crtc_state)) | |
9761 | return -EINVAL; | |
9762 | } | |
716c2e55 | 9763 | |
c7653199 | 9764 | crtc->lowfreq_avail = false; |
644cef34 | 9765 | |
c8f7a0db | 9766 | return 0; |
79e53945 JB |
9767 | } |
9768 | ||
3760b59c S |
9769 | static void bxt_get_ddi_pll(struct drm_i915_private *dev_priv, |
9770 | enum port port, | |
9771 | struct intel_crtc_state *pipe_config) | |
9772 | { | |
8106ddbd ACO |
9773 | enum intel_dpll_id id; |
9774 | ||
3760b59c S |
9775 | switch (port) { |
9776 | case PORT_A: | |
9777 | pipe_config->ddi_pll_sel = SKL_DPLL0; | |
08250c4b | 9778 | id = DPLL_ID_SKL_DPLL0; |
3760b59c S |
9779 | break; |
9780 | case PORT_B: | |
9781 | pipe_config->ddi_pll_sel = SKL_DPLL1; | |
08250c4b | 9782 | id = DPLL_ID_SKL_DPLL1; |
3760b59c S |
9783 | break; |
9784 | case PORT_C: | |
9785 | pipe_config->ddi_pll_sel = SKL_DPLL2; | |
08250c4b | 9786 | id = DPLL_ID_SKL_DPLL2; |
3760b59c S |
9787 | break; |
9788 | default: | |
9789 | DRM_ERROR("Incorrect port type\n"); | |
8106ddbd | 9790 | return; |
3760b59c | 9791 | } |
8106ddbd ACO |
9792 | |
9793 | pipe_config->shared_dpll = intel_get_shared_dpll_by_id(dev_priv, id); | |
3760b59c S |
9794 | } |
9795 | ||
96b7dfb7 S |
9796 | static void skylake_get_ddi_pll(struct drm_i915_private *dev_priv, |
9797 | enum port port, | |
5cec258b | 9798 | struct intel_crtc_state *pipe_config) |
96b7dfb7 | 9799 | { |
8106ddbd | 9800 | enum intel_dpll_id id; |
a3c988ea | 9801 | u32 temp; |
96b7dfb7 S |
9802 | |
9803 | temp = I915_READ(DPLL_CTRL2) & DPLL_CTRL2_DDI_CLK_SEL_MASK(port); | |
9804 | pipe_config->ddi_pll_sel = temp >> (port * 3 + 1); | |
9805 | ||
9806 | switch (pipe_config->ddi_pll_sel) { | |
3148ade7 | 9807 | case SKL_DPLL0: |
a3c988ea | 9808 | id = DPLL_ID_SKL_DPLL0; |
3148ade7 | 9809 | break; |
96b7dfb7 | 9810 | case SKL_DPLL1: |
8106ddbd | 9811 | id = DPLL_ID_SKL_DPLL1; |
96b7dfb7 S |
9812 | break; |
9813 | case SKL_DPLL2: | |
8106ddbd | 9814 | id = DPLL_ID_SKL_DPLL2; |
96b7dfb7 S |
9815 | break; |
9816 | case SKL_DPLL3: | |
8106ddbd | 9817 | id = DPLL_ID_SKL_DPLL3; |
96b7dfb7 | 9818 | break; |
8106ddbd ACO |
9819 | default: |
9820 | MISSING_CASE(pipe_config->ddi_pll_sel); | |
9821 | return; | |
96b7dfb7 | 9822 | } |
8106ddbd ACO |
9823 | |
9824 | pipe_config->shared_dpll = intel_get_shared_dpll_by_id(dev_priv, id); | |
96b7dfb7 S |
9825 | } |
9826 | ||
7d2c8175 DL |
9827 | static void haswell_get_ddi_pll(struct drm_i915_private *dev_priv, |
9828 | enum port port, | |
5cec258b | 9829 | struct intel_crtc_state *pipe_config) |
7d2c8175 | 9830 | { |
8106ddbd ACO |
9831 | enum intel_dpll_id id; |
9832 | ||
7d2c8175 DL |
9833 | pipe_config->ddi_pll_sel = I915_READ(PORT_CLK_SEL(port)); |
9834 | ||
9835 | switch (pipe_config->ddi_pll_sel) { | |
9836 | case PORT_CLK_SEL_WRPLL1: | |
8106ddbd | 9837 | id = DPLL_ID_WRPLL1; |
7d2c8175 DL |
9838 | break; |
9839 | case PORT_CLK_SEL_WRPLL2: | |
8106ddbd | 9840 | id = DPLL_ID_WRPLL2; |
7d2c8175 | 9841 | break; |
00490c22 | 9842 | case PORT_CLK_SEL_SPLL: |
8106ddbd | 9843 | id = DPLL_ID_SPLL; |
79bd23da | 9844 | break; |
9d16da65 ACO |
9845 | case PORT_CLK_SEL_LCPLL_810: |
9846 | id = DPLL_ID_LCPLL_810; | |
9847 | break; | |
9848 | case PORT_CLK_SEL_LCPLL_1350: | |
9849 | id = DPLL_ID_LCPLL_1350; | |
9850 | break; | |
9851 | case PORT_CLK_SEL_LCPLL_2700: | |
9852 | id = DPLL_ID_LCPLL_2700; | |
9853 | break; | |
8106ddbd ACO |
9854 | default: |
9855 | MISSING_CASE(pipe_config->ddi_pll_sel); | |
9856 | /* fall through */ | |
9857 | case PORT_CLK_SEL_NONE: | |
8106ddbd | 9858 | return; |
7d2c8175 | 9859 | } |
8106ddbd ACO |
9860 | |
9861 | pipe_config->shared_dpll = intel_get_shared_dpll_by_id(dev_priv, id); | |
7d2c8175 DL |
9862 | } |
9863 | ||
cf30429e JN |
9864 | static bool hsw_get_transcoder_state(struct intel_crtc *crtc, |
9865 | struct intel_crtc_state *pipe_config, | |
9866 | unsigned long *power_domain_mask) | |
9867 | { | |
9868 | struct drm_device *dev = crtc->base.dev; | |
9869 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9870 | enum intel_display_power_domain power_domain; | |
9871 | u32 tmp; | |
9872 | ||
9873 | pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe; | |
9874 | ||
9875 | /* | |
9876 | * XXX: Do intel_display_power_get_if_enabled before reading this (for | |
9877 | * consistency and less surprising code; it's in always on power). | |
9878 | */ | |
9879 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP)); | |
9880 | if (tmp & TRANS_DDI_FUNC_ENABLE) { | |
9881 | enum pipe trans_edp_pipe; | |
9882 | switch (tmp & TRANS_DDI_EDP_INPUT_MASK) { | |
9883 | default: | |
9884 | WARN(1, "unknown pipe linked to edp transcoder\n"); | |
9885 | case TRANS_DDI_EDP_INPUT_A_ONOFF: | |
9886 | case TRANS_DDI_EDP_INPUT_A_ON: | |
9887 | trans_edp_pipe = PIPE_A; | |
9888 | break; | |
9889 | case TRANS_DDI_EDP_INPUT_B_ONOFF: | |
9890 | trans_edp_pipe = PIPE_B; | |
9891 | break; | |
9892 | case TRANS_DDI_EDP_INPUT_C_ONOFF: | |
9893 | trans_edp_pipe = PIPE_C; | |
9894 | break; | |
9895 | } | |
9896 | ||
9897 | if (trans_edp_pipe == crtc->pipe) | |
9898 | pipe_config->cpu_transcoder = TRANSCODER_EDP; | |
9899 | } | |
9900 | ||
9901 | power_domain = POWER_DOMAIN_TRANSCODER(pipe_config->cpu_transcoder); | |
9902 | if (!intel_display_power_get_if_enabled(dev_priv, power_domain)) | |
9903 | return false; | |
9904 | *power_domain_mask |= BIT(power_domain); | |
9905 | ||
9906 | tmp = I915_READ(PIPECONF(pipe_config->cpu_transcoder)); | |
9907 | ||
9908 | return tmp & PIPECONF_ENABLE; | |
9909 | } | |
9910 | ||
4d1de975 JN |
9911 | static bool bxt_get_dsi_transcoder_state(struct intel_crtc *crtc, |
9912 | struct intel_crtc_state *pipe_config, | |
9913 | unsigned long *power_domain_mask) | |
9914 | { | |
9915 | struct drm_device *dev = crtc->base.dev; | |
9916 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9917 | enum intel_display_power_domain power_domain; | |
9918 | enum port port; | |
9919 | enum transcoder cpu_transcoder; | |
9920 | u32 tmp; | |
9921 | ||
9922 | pipe_config->has_dsi_encoder = false; | |
9923 | ||
9924 | for_each_port_masked(port, BIT(PORT_A) | BIT(PORT_C)) { | |
9925 | if (port == PORT_A) | |
9926 | cpu_transcoder = TRANSCODER_DSI_A; | |
9927 | else | |
9928 | cpu_transcoder = TRANSCODER_DSI_C; | |
9929 | ||
9930 | power_domain = POWER_DOMAIN_TRANSCODER(cpu_transcoder); | |
9931 | if (!intel_display_power_get_if_enabled(dev_priv, power_domain)) | |
9932 | continue; | |
9933 | *power_domain_mask |= BIT(power_domain); | |
9934 | ||
db18b6a6 ID |
9935 | /* |
9936 | * The PLL needs to be enabled with a valid divider | |
9937 | * configuration, otherwise accessing DSI registers will hang | |
9938 | * the machine. See BSpec North Display Engine | |
9939 | * registers/MIPI[BXT]. We can break out here early, since we | |
9940 | * need the same DSI PLL to be enabled for both DSI ports. | |
9941 | */ | |
9942 | if (!intel_dsi_pll_is_enabled(dev_priv)) | |
9943 | break; | |
9944 | ||
4d1de975 JN |
9945 | /* XXX: this works for video mode only */ |
9946 | tmp = I915_READ(BXT_MIPI_PORT_CTRL(port)); | |
9947 | if (!(tmp & DPI_ENABLE)) | |
9948 | continue; | |
9949 | ||
9950 | tmp = I915_READ(MIPI_CTRL(port)); | |
9951 | if ((tmp & BXT_PIPE_SELECT_MASK) != BXT_PIPE_SELECT(crtc->pipe)) | |
9952 | continue; | |
9953 | ||
9954 | pipe_config->cpu_transcoder = cpu_transcoder; | |
9955 | pipe_config->has_dsi_encoder = true; | |
79bd23da | 9956 | break; |
7d2c8175 | 9957 | } |
4d1de975 JN |
9958 | |
9959 | return pipe_config->has_dsi_encoder; | |
7d2c8175 DL |
9960 | } |
9961 | ||
26804afd | 9962 | static void haswell_get_ddi_port_state(struct intel_crtc *crtc, |
5cec258b | 9963 | struct intel_crtc_state *pipe_config) |
26804afd DV |
9964 | { |
9965 | struct drm_device *dev = crtc->base.dev; | |
9966 | struct drm_i915_private *dev_priv = dev->dev_private; | |
d452c5b6 | 9967 | struct intel_shared_dpll *pll; |
26804afd DV |
9968 | enum port port; |
9969 | uint32_t tmp; | |
9970 | ||
9971 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder)); | |
9972 | ||
9973 | port = (tmp & TRANS_DDI_PORT_MASK) >> TRANS_DDI_PORT_SHIFT; | |
9974 | ||
ef11bdb3 | 9975 | if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) |
96b7dfb7 | 9976 | skylake_get_ddi_pll(dev_priv, port, pipe_config); |
3760b59c S |
9977 | else if (IS_BROXTON(dev)) |
9978 | bxt_get_ddi_pll(dev_priv, port, pipe_config); | |
96b7dfb7 S |
9979 | else |
9980 | haswell_get_ddi_pll(dev_priv, port, pipe_config); | |
9cd86933 | 9981 | |
8106ddbd ACO |
9982 | pll = pipe_config->shared_dpll; |
9983 | if (pll) { | |
2edd6443 ACO |
9984 | WARN_ON(!pll->funcs.get_hw_state(dev_priv, pll, |
9985 | &pipe_config->dpll_hw_state)); | |
d452c5b6 DV |
9986 | } |
9987 | ||
26804afd DV |
9988 | /* |
9989 | * Haswell has only FDI/PCH transcoder A. It is which is connected to | |
9990 | * DDI E. So just check whether this pipe is wired to DDI E and whether | |
9991 | * the PCH transcoder is on. | |
9992 | */ | |
ca370455 DL |
9993 | if (INTEL_INFO(dev)->gen < 9 && |
9994 | (port == PORT_E) && I915_READ(LPT_TRANSCONF) & TRANS_ENABLE) { | |
26804afd DV |
9995 | pipe_config->has_pch_encoder = true; |
9996 | ||
9997 | tmp = I915_READ(FDI_RX_CTL(PIPE_A)); | |
9998 | pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >> | |
9999 | FDI_DP_PORT_WIDTH_SHIFT) + 1; | |
10000 | ||
10001 | ironlake_get_fdi_m_n_config(crtc, pipe_config); | |
10002 | } | |
10003 | } | |
10004 | ||
0e8ffe1b | 10005 | static bool haswell_get_pipe_config(struct intel_crtc *crtc, |
5cec258b | 10006 | struct intel_crtc_state *pipe_config) |
0e8ffe1b DV |
10007 | { |
10008 | struct drm_device *dev = crtc->base.dev; | |
10009 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1729050e ID |
10010 | enum intel_display_power_domain power_domain; |
10011 | unsigned long power_domain_mask; | |
cf30429e | 10012 | bool active; |
0e8ffe1b | 10013 | |
1729050e ID |
10014 | power_domain = POWER_DOMAIN_PIPE(crtc->pipe); |
10015 | if (!intel_display_power_get_if_enabled(dev_priv, power_domain)) | |
b5482bd0 | 10016 | return false; |
1729050e ID |
10017 | power_domain_mask = BIT(power_domain); |
10018 | ||
8106ddbd | 10019 | pipe_config->shared_dpll = NULL; |
c0d43d62 | 10020 | |
cf30429e | 10021 | active = hsw_get_transcoder_state(crtc, pipe_config, &power_domain_mask); |
eccb140b | 10022 | |
4d1de975 JN |
10023 | if (IS_BROXTON(dev_priv)) { |
10024 | bxt_get_dsi_transcoder_state(crtc, pipe_config, | |
10025 | &power_domain_mask); | |
10026 | WARN_ON(active && pipe_config->has_dsi_encoder); | |
10027 | if (pipe_config->has_dsi_encoder) | |
10028 | active = true; | |
eccb140b DV |
10029 | } |
10030 | ||
cf30429e | 10031 | if (!active) |
1729050e | 10032 | goto out; |
2bfce950 | 10033 | |
4d1de975 JN |
10034 | if (!pipe_config->has_dsi_encoder) { |
10035 | haswell_get_ddi_port_state(crtc, pipe_config); | |
10036 | intel_get_pipe_timings(crtc, pipe_config); | |
10037 | } | |
0e8ffe1b | 10038 | |
bc58be60 | 10039 | intel_get_pipe_src_size(crtc, pipe_config); |
627eb5a3 | 10040 | |
05dc698c LL |
10041 | pipe_config->gamma_mode = |
10042 | I915_READ(GAMMA_MODE(crtc->pipe)) & GAMMA_MODE_MODE_MASK; | |
1bd1bd80 | 10043 | |
a1b2278e CK |
10044 | if (INTEL_INFO(dev)->gen >= 9) { |
10045 | skl_init_scalers(dev, crtc, pipe_config); | |
10046 | } | |
10047 | ||
af99ceda CK |
10048 | if (INTEL_INFO(dev)->gen >= 9) { |
10049 | pipe_config->scaler_state.scaler_id = -1; | |
10050 | pipe_config->scaler_state.scaler_users &= ~(1 << SKL_CRTC_INDEX); | |
10051 | } | |
10052 | ||
1729050e ID |
10053 | power_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe); |
10054 | if (intel_display_power_get_if_enabled(dev_priv, power_domain)) { | |
10055 | power_domain_mask |= BIT(power_domain); | |
1c132b44 | 10056 | if (INTEL_INFO(dev)->gen >= 9) |
bd2e244f | 10057 | skylake_get_pfit_config(crtc, pipe_config); |
ff6d9f55 | 10058 | else |
1c132b44 | 10059 | ironlake_get_pfit_config(crtc, pipe_config); |
bd2e244f | 10060 | } |
88adfff1 | 10061 | |
e59150dc JB |
10062 | if (IS_HASWELL(dev)) |
10063 | pipe_config->ips_enabled = hsw_crtc_supports_ips(crtc) && | |
10064 | (I915_READ(IPS_CTL) & IPS_ENABLE); | |
42db64ef | 10065 | |
4d1de975 JN |
10066 | if (pipe_config->cpu_transcoder != TRANSCODER_EDP && |
10067 | !transcoder_is_dsi(pipe_config->cpu_transcoder)) { | |
ebb69c95 CT |
10068 | pipe_config->pixel_multiplier = |
10069 | I915_READ(PIPE_MULT(pipe_config->cpu_transcoder)) + 1; | |
10070 | } else { | |
10071 | pipe_config->pixel_multiplier = 1; | |
10072 | } | |
6c49f241 | 10073 | |
1729050e ID |
10074 | out: |
10075 | for_each_power_domain(power_domain, power_domain_mask) | |
10076 | intel_display_power_put(dev_priv, power_domain); | |
10077 | ||
cf30429e | 10078 | return active; |
0e8ffe1b DV |
10079 | } |
10080 | ||
55a08b3f ML |
10081 | static void i845_update_cursor(struct drm_crtc *crtc, u32 base, |
10082 | const struct intel_plane_state *plane_state) | |
560b85bb CW |
10083 | { |
10084 | struct drm_device *dev = crtc->dev; | |
10085 | struct drm_i915_private *dev_priv = dev->dev_private; | |
10086 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
dc41c154 | 10087 | uint32_t cntl = 0, size = 0; |
560b85bb | 10088 | |
55a08b3f ML |
10089 | if (plane_state && plane_state->visible) { |
10090 | unsigned int width = plane_state->base.crtc_w; | |
10091 | unsigned int height = plane_state->base.crtc_h; | |
dc41c154 VS |
10092 | unsigned int stride = roundup_pow_of_two(width) * 4; |
10093 | ||
10094 | switch (stride) { | |
10095 | default: | |
10096 | WARN_ONCE(1, "Invalid cursor width/stride, width=%u, stride=%u\n", | |
10097 | width, stride); | |
10098 | stride = 256; | |
10099 | /* fallthrough */ | |
10100 | case 256: | |
10101 | case 512: | |
10102 | case 1024: | |
10103 | case 2048: | |
10104 | break; | |
4b0e333e CW |
10105 | } |
10106 | ||
dc41c154 VS |
10107 | cntl |= CURSOR_ENABLE | |
10108 | CURSOR_GAMMA_ENABLE | | |
10109 | CURSOR_FORMAT_ARGB | | |
10110 | CURSOR_STRIDE(stride); | |
10111 | ||
10112 | size = (height << 12) | width; | |
4b0e333e | 10113 | } |
560b85bb | 10114 | |
dc41c154 VS |
10115 | if (intel_crtc->cursor_cntl != 0 && |
10116 | (intel_crtc->cursor_base != base || | |
10117 | intel_crtc->cursor_size != size || | |
10118 | intel_crtc->cursor_cntl != cntl)) { | |
10119 | /* On these chipsets we can only modify the base/size/stride | |
10120 | * whilst the cursor is disabled. | |
10121 | */ | |
0b87c24e VS |
10122 | I915_WRITE(CURCNTR(PIPE_A), 0); |
10123 | POSTING_READ(CURCNTR(PIPE_A)); | |
dc41c154 | 10124 | intel_crtc->cursor_cntl = 0; |
4b0e333e | 10125 | } |
560b85bb | 10126 | |
99d1f387 | 10127 | if (intel_crtc->cursor_base != base) { |
0b87c24e | 10128 | I915_WRITE(CURBASE(PIPE_A), base); |
99d1f387 VS |
10129 | intel_crtc->cursor_base = base; |
10130 | } | |
4726e0b0 | 10131 | |
dc41c154 VS |
10132 | if (intel_crtc->cursor_size != size) { |
10133 | I915_WRITE(CURSIZE, size); | |
10134 | intel_crtc->cursor_size = size; | |
4b0e333e | 10135 | } |
560b85bb | 10136 | |
4b0e333e | 10137 | if (intel_crtc->cursor_cntl != cntl) { |
0b87c24e VS |
10138 | I915_WRITE(CURCNTR(PIPE_A), cntl); |
10139 | POSTING_READ(CURCNTR(PIPE_A)); | |
4b0e333e | 10140 | intel_crtc->cursor_cntl = cntl; |
560b85bb | 10141 | } |
560b85bb CW |
10142 | } |
10143 | ||
55a08b3f ML |
10144 | static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base, |
10145 | const struct intel_plane_state *plane_state) | |
65a21cd6 JB |
10146 | { |
10147 | struct drm_device *dev = crtc->dev; | |
10148 | struct drm_i915_private *dev_priv = dev->dev_private; | |
10149 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
10150 | int pipe = intel_crtc->pipe; | |
663f3122 | 10151 | uint32_t cntl = 0; |
4b0e333e | 10152 | |
55a08b3f | 10153 | if (plane_state && plane_state->visible) { |
4b0e333e | 10154 | cntl = MCURSOR_GAMMA_ENABLE; |
55a08b3f | 10155 | switch (plane_state->base.crtc_w) { |
4726e0b0 SK |
10156 | case 64: |
10157 | cntl |= CURSOR_MODE_64_ARGB_AX; | |
10158 | break; | |
10159 | case 128: | |
10160 | cntl |= CURSOR_MODE_128_ARGB_AX; | |
10161 | break; | |
10162 | case 256: | |
10163 | cntl |= CURSOR_MODE_256_ARGB_AX; | |
10164 | break; | |
10165 | default: | |
55a08b3f | 10166 | MISSING_CASE(plane_state->base.crtc_w); |
4726e0b0 | 10167 | return; |
65a21cd6 | 10168 | } |
4b0e333e | 10169 | cntl |= pipe << 28; /* Connect to correct pipe */ |
47bf17a7 | 10170 | |
fc6f93bc | 10171 | if (HAS_DDI(dev)) |
47bf17a7 | 10172 | cntl |= CURSOR_PIPE_CSC_ENABLE; |
65a21cd6 | 10173 | |
55a08b3f ML |
10174 | if (plane_state->base.rotation == BIT(DRM_ROTATE_180)) |
10175 | cntl |= CURSOR_ROTATE_180; | |
10176 | } | |
4398ad45 | 10177 | |
4b0e333e CW |
10178 | if (intel_crtc->cursor_cntl != cntl) { |
10179 | I915_WRITE(CURCNTR(pipe), cntl); | |
10180 | POSTING_READ(CURCNTR(pipe)); | |
10181 | intel_crtc->cursor_cntl = cntl; | |
65a21cd6 | 10182 | } |
4b0e333e | 10183 | |
65a21cd6 | 10184 | /* and commit changes on next vblank */ |
5efb3e28 VS |
10185 | I915_WRITE(CURBASE(pipe), base); |
10186 | POSTING_READ(CURBASE(pipe)); | |
99d1f387 VS |
10187 | |
10188 | intel_crtc->cursor_base = base; | |
65a21cd6 JB |
10189 | } |
10190 | ||
cda4b7d3 | 10191 | /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */ |
6b383a7f | 10192 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, |
55a08b3f | 10193 | const struct intel_plane_state *plane_state) |
cda4b7d3 CW |
10194 | { |
10195 | struct drm_device *dev = crtc->dev; | |
10196 | struct drm_i915_private *dev_priv = dev->dev_private; | |
10197 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
10198 | int pipe = intel_crtc->pipe; | |
55a08b3f ML |
10199 | u32 base = intel_crtc->cursor_addr; |
10200 | u32 pos = 0; | |
cda4b7d3 | 10201 | |
55a08b3f ML |
10202 | if (plane_state) { |
10203 | int x = plane_state->base.crtc_x; | |
10204 | int y = plane_state->base.crtc_y; | |
cda4b7d3 | 10205 | |
55a08b3f ML |
10206 | if (x < 0) { |
10207 | pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT; | |
10208 | x = -x; | |
10209 | } | |
10210 | pos |= x << CURSOR_X_SHIFT; | |
cda4b7d3 | 10211 | |
55a08b3f ML |
10212 | if (y < 0) { |
10213 | pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT; | |
10214 | y = -y; | |
10215 | } | |
10216 | pos |= y << CURSOR_Y_SHIFT; | |
10217 | ||
10218 | /* ILK+ do this automagically */ | |
10219 | if (HAS_GMCH_DISPLAY(dev) && | |
10220 | plane_state->base.rotation == BIT(DRM_ROTATE_180)) { | |
10221 | base += (plane_state->base.crtc_h * | |
10222 | plane_state->base.crtc_w - 1) * 4; | |
10223 | } | |
cda4b7d3 | 10224 | } |
cda4b7d3 | 10225 | |
5efb3e28 VS |
10226 | I915_WRITE(CURPOS(pipe), pos); |
10227 | ||
8ac54669 | 10228 | if (IS_845G(dev) || IS_I865G(dev)) |
55a08b3f | 10229 | i845_update_cursor(crtc, base, plane_state); |
5efb3e28 | 10230 | else |
55a08b3f | 10231 | i9xx_update_cursor(crtc, base, plane_state); |
cda4b7d3 CW |
10232 | } |
10233 | ||
dc41c154 VS |
10234 | static bool cursor_size_ok(struct drm_device *dev, |
10235 | uint32_t width, uint32_t height) | |
10236 | { | |
10237 | if (width == 0 || height == 0) | |
10238 | return false; | |
10239 | ||
10240 | /* | |
10241 | * 845g/865g are special in that they are only limited by | |
10242 | * the width of their cursors, the height is arbitrary up to | |
10243 | * the precision of the register. Everything else requires | |
10244 | * square cursors, limited to a few power-of-two sizes. | |
10245 | */ | |
10246 | if (IS_845G(dev) || IS_I865G(dev)) { | |
10247 | if ((width & 63) != 0) | |
10248 | return false; | |
10249 | ||
10250 | if (width > (IS_845G(dev) ? 64 : 512)) | |
10251 | return false; | |
10252 | ||
10253 | if (height > 1023) | |
10254 | return false; | |
10255 | } else { | |
10256 | switch (width | height) { | |
10257 | case 256: | |
10258 | case 128: | |
10259 | if (IS_GEN2(dev)) | |
10260 | return false; | |
10261 | case 64: | |
10262 | break; | |
10263 | default: | |
10264 | return false; | |
10265 | } | |
10266 | } | |
10267 | ||
10268 | return true; | |
10269 | } | |
10270 | ||
79e53945 JB |
10271 | /* VESA 640x480x72Hz mode to set on the pipe */ |
10272 | static struct drm_display_mode load_detect_mode = { | |
10273 | DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, | |
10274 | 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), | |
10275 | }; | |
10276 | ||
a8bb6818 DV |
10277 | struct drm_framebuffer * |
10278 | __intel_framebuffer_create(struct drm_device *dev, | |
10279 | struct drm_mode_fb_cmd2 *mode_cmd, | |
10280 | struct drm_i915_gem_object *obj) | |
d2dff872 CW |
10281 | { |
10282 | struct intel_framebuffer *intel_fb; | |
10283 | int ret; | |
10284 | ||
10285 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); | |
dcb1394e | 10286 | if (!intel_fb) |
d2dff872 | 10287 | return ERR_PTR(-ENOMEM); |
d2dff872 CW |
10288 | |
10289 | ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj); | |
dd4916c5 DV |
10290 | if (ret) |
10291 | goto err; | |
d2dff872 CW |
10292 | |
10293 | return &intel_fb->base; | |
dcb1394e | 10294 | |
dd4916c5 | 10295 | err: |
dd4916c5 | 10296 | kfree(intel_fb); |
dd4916c5 | 10297 | return ERR_PTR(ret); |
d2dff872 CW |
10298 | } |
10299 | ||
b5ea642a | 10300 | static struct drm_framebuffer * |
a8bb6818 DV |
10301 | intel_framebuffer_create(struct drm_device *dev, |
10302 | struct drm_mode_fb_cmd2 *mode_cmd, | |
10303 | struct drm_i915_gem_object *obj) | |
10304 | { | |
10305 | struct drm_framebuffer *fb; | |
10306 | int ret; | |
10307 | ||
10308 | ret = i915_mutex_lock_interruptible(dev); | |
10309 | if (ret) | |
10310 | return ERR_PTR(ret); | |
10311 | fb = __intel_framebuffer_create(dev, mode_cmd, obj); | |
10312 | mutex_unlock(&dev->struct_mutex); | |
10313 | ||
10314 | return fb; | |
10315 | } | |
10316 | ||
d2dff872 CW |
10317 | static u32 |
10318 | intel_framebuffer_pitch_for_width(int width, int bpp) | |
10319 | { | |
10320 | u32 pitch = DIV_ROUND_UP(width * bpp, 8); | |
10321 | return ALIGN(pitch, 64); | |
10322 | } | |
10323 | ||
10324 | static u32 | |
10325 | intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp) | |
10326 | { | |
10327 | u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp); | |
1267a26b | 10328 | return PAGE_ALIGN(pitch * mode->vdisplay); |
d2dff872 CW |
10329 | } |
10330 | ||
10331 | static struct drm_framebuffer * | |
10332 | intel_framebuffer_create_for_mode(struct drm_device *dev, | |
10333 | struct drm_display_mode *mode, | |
10334 | int depth, int bpp) | |
10335 | { | |
dcb1394e | 10336 | struct drm_framebuffer *fb; |
d2dff872 | 10337 | struct drm_i915_gem_object *obj; |
0fed39bd | 10338 | struct drm_mode_fb_cmd2 mode_cmd = { 0 }; |
d2dff872 CW |
10339 | |
10340 | obj = i915_gem_alloc_object(dev, | |
10341 | intel_framebuffer_size_for_mode(mode, bpp)); | |
10342 | if (obj == NULL) | |
10343 | return ERR_PTR(-ENOMEM); | |
10344 | ||
10345 | mode_cmd.width = mode->hdisplay; | |
10346 | mode_cmd.height = mode->vdisplay; | |
308e5bcb JB |
10347 | mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width, |
10348 | bpp); | |
5ca0c34a | 10349 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); |
d2dff872 | 10350 | |
dcb1394e LW |
10351 | fb = intel_framebuffer_create(dev, &mode_cmd, obj); |
10352 | if (IS_ERR(fb)) | |
10353 | drm_gem_object_unreference_unlocked(&obj->base); | |
10354 | ||
10355 | return fb; | |
d2dff872 CW |
10356 | } |
10357 | ||
10358 | static struct drm_framebuffer * | |
10359 | mode_fits_in_fbdev(struct drm_device *dev, | |
10360 | struct drm_display_mode *mode) | |
10361 | { | |
0695726e | 10362 | #ifdef CONFIG_DRM_FBDEV_EMULATION |
d2dff872 CW |
10363 | struct drm_i915_private *dev_priv = dev->dev_private; |
10364 | struct drm_i915_gem_object *obj; | |
10365 | struct drm_framebuffer *fb; | |
10366 | ||
4c0e5528 | 10367 | if (!dev_priv->fbdev) |
d2dff872 CW |
10368 | return NULL; |
10369 | ||
4c0e5528 | 10370 | if (!dev_priv->fbdev->fb) |
d2dff872 CW |
10371 | return NULL; |
10372 | ||
4c0e5528 DV |
10373 | obj = dev_priv->fbdev->fb->obj; |
10374 | BUG_ON(!obj); | |
10375 | ||
8bcd4553 | 10376 | fb = &dev_priv->fbdev->fb->base; |
01f2c773 VS |
10377 | if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay, |
10378 | fb->bits_per_pixel)) | |
d2dff872 CW |
10379 | return NULL; |
10380 | ||
01f2c773 | 10381 | if (obj->base.size < mode->vdisplay * fb->pitches[0]) |
d2dff872 CW |
10382 | return NULL; |
10383 | ||
edde3617 | 10384 | drm_framebuffer_reference(fb); |
d2dff872 | 10385 | return fb; |
4520f53a DV |
10386 | #else |
10387 | return NULL; | |
10388 | #endif | |
d2dff872 CW |
10389 | } |
10390 | ||
d3a40d1b ACO |
10391 | static int intel_modeset_setup_plane_state(struct drm_atomic_state *state, |
10392 | struct drm_crtc *crtc, | |
10393 | struct drm_display_mode *mode, | |
10394 | struct drm_framebuffer *fb, | |
10395 | int x, int y) | |
10396 | { | |
10397 | struct drm_plane_state *plane_state; | |
10398 | int hdisplay, vdisplay; | |
10399 | int ret; | |
10400 | ||
10401 | plane_state = drm_atomic_get_plane_state(state, crtc->primary); | |
10402 | if (IS_ERR(plane_state)) | |
10403 | return PTR_ERR(plane_state); | |
10404 | ||
10405 | if (mode) | |
10406 | drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); | |
10407 | else | |
10408 | hdisplay = vdisplay = 0; | |
10409 | ||
10410 | ret = drm_atomic_set_crtc_for_plane(plane_state, fb ? crtc : NULL); | |
10411 | if (ret) | |
10412 | return ret; | |
10413 | drm_atomic_set_fb_for_plane(plane_state, fb); | |
10414 | plane_state->crtc_x = 0; | |
10415 | plane_state->crtc_y = 0; | |
10416 | plane_state->crtc_w = hdisplay; | |
10417 | plane_state->crtc_h = vdisplay; | |
10418 | plane_state->src_x = x << 16; | |
10419 | plane_state->src_y = y << 16; | |
10420 | plane_state->src_w = hdisplay << 16; | |
10421 | plane_state->src_h = vdisplay << 16; | |
10422 | ||
10423 | return 0; | |
10424 | } | |
10425 | ||
d2434ab7 | 10426 | bool intel_get_load_detect_pipe(struct drm_connector *connector, |
7173188d | 10427 | struct drm_display_mode *mode, |
51fd371b RC |
10428 | struct intel_load_detect_pipe *old, |
10429 | struct drm_modeset_acquire_ctx *ctx) | |
79e53945 JB |
10430 | { |
10431 | struct intel_crtc *intel_crtc; | |
d2434ab7 DV |
10432 | struct intel_encoder *intel_encoder = |
10433 | intel_attached_encoder(connector); | |
79e53945 | 10434 | struct drm_crtc *possible_crtc; |
4ef69c7a | 10435 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 JB |
10436 | struct drm_crtc *crtc = NULL; |
10437 | struct drm_device *dev = encoder->dev; | |
94352cf9 | 10438 | struct drm_framebuffer *fb; |
51fd371b | 10439 | struct drm_mode_config *config = &dev->mode_config; |
edde3617 | 10440 | struct drm_atomic_state *state = NULL, *restore_state = NULL; |
944b0c76 | 10441 | struct drm_connector_state *connector_state; |
4be07317 | 10442 | struct intel_crtc_state *crtc_state; |
51fd371b | 10443 | int ret, i = -1; |
79e53945 | 10444 | |
d2dff872 | 10445 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
c23cc417 | 10446 | connector->base.id, connector->name, |
8e329a03 | 10447 | encoder->base.id, encoder->name); |
d2dff872 | 10448 | |
edde3617 ML |
10449 | old->restore_state = NULL; |
10450 | ||
51fd371b RC |
10451 | retry: |
10452 | ret = drm_modeset_lock(&config->connection_mutex, ctx); | |
10453 | if (ret) | |
ad3c558f | 10454 | goto fail; |
6e9f798d | 10455 | |
79e53945 JB |
10456 | /* |
10457 | * Algorithm gets a little messy: | |
7a5e4805 | 10458 | * |
79e53945 JB |
10459 | * - if the connector already has an assigned crtc, use it (but make |
10460 | * sure it's on first) | |
7a5e4805 | 10461 | * |
79e53945 JB |
10462 | * - try to find the first unused crtc that can drive this connector, |
10463 | * and use that if we find one | |
79e53945 JB |
10464 | */ |
10465 | ||
10466 | /* See if we already have a CRTC for this connector */ | |
edde3617 ML |
10467 | if (connector->state->crtc) { |
10468 | crtc = connector->state->crtc; | |
8261b191 | 10469 | |
51fd371b | 10470 | ret = drm_modeset_lock(&crtc->mutex, ctx); |
4d02e2de | 10471 | if (ret) |
ad3c558f | 10472 | goto fail; |
8261b191 CW |
10473 | |
10474 | /* Make sure the crtc and connector are running */ | |
edde3617 | 10475 | goto found; |
79e53945 JB |
10476 | } |
10477 | ||
10478 | /* Find an unused one (if possible) */ | |
70e1e0ec | 10479 | for_each_crtc(dev, possible_crtc) { |
79e53945 JB |
10480 | i++; |
10481 | if (!(encoder->possible_crtcs & (1 << i))) | |
10482 | continue; | |
edde3617 ML |
10483 | |
10484 | ret = drm_modeset_lock(&possible_crtc->mutex, ctx); | |
10485 | if (ret) | |
10486 | goto fail; | |
10487 | ||
10488 | if (possible_crtc->state->enable) { | |
10489 | drm_modeset_unlock(&possible_crtc->mutex); | |
a459249c | 10490 | continue; |
edde3617 | 10491 | } |
a459249c VS |
10492 | |
10493 | crtc = possible_crtc; | |
10494 | break; | |
79e53945 JB |
10495 | } |
10496 | ||
10497 | /* | |
10498 | * If we didn't find an unused CRTC, don't use any. | |
10499 | */ | |
10500 | if (!crtc) { | |
7173188d | 10501 | DRM_DEBUG_KMS("no pipe available for load-detect\n"); |
ad3c558f | 10502 | goto fail; |
79e53945 JB |
10503 | } |
10504 | ||
edde3617 ML |
10505 | found: |
10506 | intel_crtc = to_intel_crtc(crtc); | |
10507 | ||
4d02e2de DV |
10508 | ret = drm_modeset_lock(&crtc->primary->mutex, ctx); |
10509 | if (ret) | |
ad3c558f | 10510 | goto fail; |
79e53945 | 10511 | |
83a57153 | 10512 | state = drm_atomic_state_alloc(dev); |
edde3617 ML |
10513 | restore_state = drm_atomic_state_alloc(dev); |
10514 | if (!state || !restore_state) { | |
10515 | ret = -ENOMEM; | |
10516 | goto fail; | |
10517 | } | |
83a57153 ACO |
10518 | |
10519 | state->acquire_ctx = ctx; | |
edde3617 | 10520 | restore_state->acquire_ctx = ctx; |
83a57153 | 10521 | |
944b0c76 ACO |
10522 | connector_state = drm_atomic_get_connector_state(state, connector); |
10523 | if (IS_ERR(connector_state)) { | |
10524 | ret = PTR_ERR(connector_state); | |
10525 | goto fail; | |
10526 | } | |
10527 | ||
edde3617 ML |
10528 | ret = drm_atomic_set_crtc_for_connector(connector_state, crtc); |
10529 | if (ret) | |
10530 | goto fail; | |
944b0c76 | 10531 | |
4be07317 ACO |
10532 | crtc_state = intel_atomic_get_crtc_state(state, intel_crtc); |
10533 | if (IS_ERR(crtc_state)) { | |
10534 | ret = PTR_ERR(crtc_state); | |
10535 | goto fail; | |
10536 | } | |
10537 | ||
49d6fa21 | 10538 | crtc_state->base.active = crtc_state->base.enable = true; |
4be07317 | 10539 | |
6492711d CW |
10540 | if (!mode) |
10541 | mode = &load_detect_mode; | |
79e53945 | 10542 | |
d2dff872 CW |
10543 | /* We need a framebuffer large enough to accommodate all accesses |
10544 | * that the plane may generate whilst we perform load detection. | |
10545 | * We can not rely on the fbcon either being present (we get called | |
10546 | * during its initialisation to detect all boot displays, or it may | |
10547 | * not even exist) or that it is large enough to satisfy the | |
10548 | * requested mode. | |
10549 | */ | |
94352cf9 DV |
10550 | fb = mode_fits_in_fbdev(dev, mode); |
10551 | if (fb == NULL) { | |
d2dff872 | 10552 | DRM_DEBUG_KMS("creating tmp fb for load-detection\n"); |
94352cf9 | 10553 | fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32); |
d2dff872 CW |
10554 | } else |
10555 | DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n"); | |
94352cf9 | 10556 | if (IS_ERR(fb)) { |
d2dff872 | 10557 | DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n"); |
412b61d8 | 10558 | goto fail; |
79e53945 | 10559 | } |
79e53945 | 10560 | |
d3a40d1b ACO |
10561 | ret = intel_modeset_setup_plane_state(state, crtc, mode, fb, 0, 0); |
10562 | if (ret) | |
10563 | goto fail; | |
10564 | ||
edde3617 ML |
10565 | drm_framebuffer_unreference(fb); |
10566 | ||
10567 | ret = drm_atomic_set_mode_for_crtc(&crtc_state->base, mode); | |
10568 | if (ret) | |
10569 | goto fail; | |
10570 | ||
10571 | ret = PTR_ERR_OR_ZERO(drm_atomic_get_connector_state(restore_state, connector)); | |
10572 | if (!ret) | |
10573 | ret = PTR_ERR_OR_ZERO(drm_atomic_get_crtc_state(restore_state, crtc)); | |
10574 | if (!ret) | |
10575 | ret = PTR_ERR_OR_ZERO(drm_atomic_get_plane_state(restore_state, crtc->primary)); | |
10576 | if (ret) { | |
10577 | DRM_DEBUG_KMS("Failed to create a copy of old state to restore: %i\n", ret); | |
10578 | goto fail; | |
10579 | } | |
8c7b5ccb | 10580 | |
94669e6b ML |
10581 | ret = drm_atomic_commit(state); |
10582 | if (ret) { | |
6492711d | 10583 | DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n"); |
412b61d8 | 10584 | goto fail; |
79e53945 | 10585 | } |
edde3617 ML |
10586 | |
10587 | old->restore_state = restore_state; | |
7173188d | 10588 | |
79e53945 | 10589 | /* let the connector get through one full cycle before testing */ |
9d0498a2 | 10590 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
7173188d | 10591 | return true; |
412b61d8 | 10592 | |
ad3c558f | 10593 | fail: |
e5d958ef | 10594 | drm_atomic_state_free(state); |
edde3617 ML |
10595 | drm_atomic_state_free(restore_state); |
10596 | restore_state = state = NULL; | |
83a57153 | 10597 | |
51fd371b RC |
10598 | if (ret == -EDEADLK) { |
10599 | drm_modeset_backoff(ctx); | |
10600 | goto retry; | |
10601 | } | |
10602 | ||
412b61d8 | 10603 | return false; |
79e53945 JB |
10604 | } |
10605 | ||
d2434ab7 | 10606 | void intel_release_load_detect_pipe(struct drm_connector *connector, |
49172fee ACO |
10607 | struct intel_load_detect_pipe *old, |
10608 | struct drm_modeset_acquire_ctx *ctx) | |
79e53945 | 10609 | { |
d2434ab7 DV |
10610 | struct intel_encoder *intel_encoder = |
10611 | intel_attached_encoder(connector); | |
4ef69c7a | 10612 | struct drm_encoder *encoder = &intel_encoder->base; |
edde3617 | 10613 | struct drm_atomic_state *state = old->restore_state; |
d3a40d1b | 10614 | int ret; |
79e53945 | 10615 | |
d2dff872 | 10616 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
c23cc417 | 10617 | connector->base.id, connector->name, |
8e329a03 | 10618 | encoder->base.id, encoder->name); |
d2dff872 | 10619 | |
edde3617 | 10620 | if (!state) |
0622a53c | 10621 | return; |
79e53945 | 10622 | |
edde3617 ML |
10623 | ret = drm_atomic_commit(state); |
10624 | if (ret) { | |
10625 | DRM_DEBUG_KMS("Couldn't release load detect pipe: %i\n", ret); | |
10626 | drm_atomic_state_free(state); | |
10627 | } | |
79e53945 JB |
10628 | } |
10629 | ||
da4a1efa | 10630 | static int i9xx_pll_refclk(struct drm_device *dev, |
5cec258b | 10631 | const struct intel_crtc_state *pipe_config) |
da4a1efa VS |
10632 | { |
10633 | struct drm_i915_private *dev_priv = dev->dev_private; | |
10634 | u32 dpll = pipe_config->dpll_hw_state.dpll; | |
10635 | ||
10636 | if ((dpll & PLL_REF_INPUT_MASK) == PLLB_REF_INPUT_SPREADSPECTRUMIN) | |
e91e941b | 10637 | return dev_priv->vbt.lvds_ssc_freq; |
da4a1efa VS |
10638 | else if (HAS_PCH_SPLIT(dev)) |
10639 | return 120000; | |
10640 | else if (!IS_GEN2(dev)) | |
10641 | return 96000; | |
10642 | else | |
10643 | return 48000; | |
10644 | } | |
10645 | ||
79e53945 | 10646 | /* Returns the clock of the currently programmed mode of the given pipe. */ |
f1f644dc | 10647 | static void i9xx_crtc_clock_get(struct intel_crtc *crtc, |
5cec258b | 10648 | struct intel_crtc_state *pipe_config) |
79e53945 | 10649 | { |
f1f644dc | 10650 | struct drm_device *dev = crtc->base.dev; |
79e53945 | 10651 | struct drm_i915_private *dev_priv = dev->dev_private; |
f1f644dc | 10652 | int pipe = pipe_config->cpu_transcoder; |
293623f7 | 10653 | u32 dpll = pipe_config->dpll_hw_state.dpll; |
79e53945 JB |
10654 | u32 fp; |
10655 | intel_clock_t clock; | |
dccbea3b | 10656 | int port_clock; |
da4a1efa | 10657 | int refclk = i9xx_pll_refclk(dev, pipe_config); |
79e53945 JB |
10658 | |
10659 | if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) | |
293623f7 | 10660 | fp = pipe_config->dpll_hw_state.fp0; |
79e53945 | 10661 | else |
293623f7 | 10662 | fp = pipe_config->dpll_hw_state.fp1; |
79e53945 JB |
10663 | |
10664 | clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; | |
f2b115e6 AJ |
10665 | if (IS_PINEVIEW(dev)) { |
10666 | clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; | |
10667 | clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
2177832f SL |
10668 | } else { |
10669 | clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; | |
10670 | clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
10671 | } | |
10672 | ||
a6c45cf0 | 10673 | if (!IS_GEN2(dev)) { |
f2b115e6 AJ |
10674 | if (IS_PINEVIEW(dev)) |
10675 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >> | |
10676 | DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW); | |
2177832f SL |
10677 | else |
10678 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> | |
79e53945 JB |
10679 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
10680 | ||
10681 | switch (dpll & DPLL_MODE_MASK) { | |
10682 | case DPLLB_MODE_DAC_SERIAL: | |
10683 | clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? | |
10684 | 5 : 10; | |
10685 | break; | |
10686 | case DPLLB_MODE_LVDS: | |
10687 | clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? | |
10688 | 7 : 14; | |
10689 | break; | |
10690 | default: | |
28c97730 | 10691 | DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed " |
79e53945 | 10692 | "mode\n", (int)(dpll & DPLL_MODE_MASK)); |
f1f644dc | 10693 | return; |
79e53945 JB |
10694 | } |
10695 | ||
ac58c3f0 | 10696 | if (IS_PINEVIEW(dev)) |
dccbea3b | 10697 | port_clock = pnv_calc_dpll_params(refclk, &clock); |
ac58c3f0 | 10698 | else |
dccbea3b | 10699 | port_clock = i9xx_calc_dpll_params(refclk, &clock); |
79e53945 | 10700 | } else { |
0fb58223 | 10701 | u32 lvds = IS_I830(dev) ? 0 : I915_READ(LVDS); |
b1c560d1 | 10702 | bool is_lvds = (pipe == 1) && (lvds & LVDS_PORT_EN); |
79e53945 JB |
10703 | |
10704 | if (is_lvds) { | |
10705 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> | |
10706 | DPLL_FPA01_P1_POST_DIV_SHIFT); | |
b1c560d1 VS |
10707 | |
10708 | if (lvds & LVDS_CLKB_POWER_UP) | |
10709 | clock.p2 = 7; | |
10710 | else | |
10711 | clock.p2 = 14; | |
79e53945 JB |
10712 | } else { |
10713 | if (dpll & PLL_P1_DIVIDE_BY_TWO) | |
10714 | clock.p1 = 2; | |
10715 | else { | |
10716 | clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> | |
10717 | DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; | |
10718 | } | |
10719 | if (dpll & PLL_P2_DIVIDE_BY_4) | |
10720 | clock.p2 = 4; | |
10721 | else | |
10722 | clock.p2 = 2; | |
79e53945 | 10723 | } |
da4a1efa | 10724 | |
dccbea3b | 10725 | port_clock = i9xx_calc_dpll_params(refclk, &clock); |
79e53945 JB |
10726 | } |
10727 | ||
18442d08 VS |
10728 | /* |
10729 | * This value includes pixel_multiplier. We will use | |
241bfc38 | 10730 | * port_clock to compute adjusted_mode.crtc_clock in the |
18442d08 VS |
10731 | * encoder's get_config() function. |
10732 | */ | |
dccbea3b | 10733 | pipe_config->port_clock = port_clock; |
f1f644dc JB |
10734 | } |
10735 | ||
6878da05 VS |
10736 | int intel_dotclock_calculate(int link_freq, |
10737 | const struct intel_link_m_n *m_n) | |
f1f644dc | 10738 | { |
f1f644dc JB |
10739 | /* |
10740 | * The calculation for the data clock is: | |
1041a02f | 10741 | * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp |
f1f644dc | 10742 | * But we want to avoid losing precison if possible, so: |
1041a02f | 10743 | * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp)) |
f1f644dc JB |
10744 | * |
10745 | * and the link clock is simpler: | |
1041a02f | 10746 | * link_clock = (m * link_clock) / n |
f1f644dc JB |
10747 | */ |
10748 | ||
6878da05 VS |
10749 | if (!m_n->link_n) |
10750 | return 0; | |
f1f644dc | 10751 | |
6878da05 VS |
10752 | return div_u64((u64)m_n->link_m * link_freq, m_n->link_n); |
10753 | } | |
f1f644dc | 10754 | |
18442d08 | 10755 | static void ironlake_pch_clock_get(struct intel_crtc *crtc, |
5cec258b | 10756 | struct intel_crtc_state *pipe_config) |
6878da05 | 10757 | { |
e3b247da | 10758 | struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); |
79e53945 | 10759 | |
18442d08 VS |
10760 | /* read out port_clock from the DPLL */ |
10761 | i9xx_crtc_clock_get(crtc, pipe_config); | |
f1f644dc | 10762 | |
f1f644dc | 10763 | /* |
e3b247da VS |
10764 | * In case there is an active pipe without active ports, |
10765 | * we may need some idea for the dotclock anyway. | |
10766 | * Calculate one based on the FDI configuration. | |
79e53945 | 10767 | */ |
2d112de7 | 10768 | pipe_config->base.adjusted_mode.crtc_clock = |
21a727b3 | 10769 | intel_dotclock_calculate(intel_fdi_link_freq(dev_priv, pipe_config), |
18442d08 | 10770 | &pipe_config->fdi_m_n); |
79e53945 JB |
10771 | } |
10772 | ||
10773 | /** Returns the currently programmed mode of the given pipe. */ | |
10774 | struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, | |
10775 | struct drm_crtc *crtc) | |
10776 | { | |
548f245b | 10777 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 | 10778 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6e3c9717 | 10779 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
79e53945 | 10780 | struct drm_display_mode *mode; |
3f36b937 | 10781 | struct intel_crtc_state *pipe_config; |
fe2b8f9d PZ |
10782 | int htot = I915_READ(HTOTAL(cpu_transcoder)); |
10783 | int hsync = I915_READ(HSYNC(cpu_transcoder)); | |
10784 | int vtot = I915_READ(VTOTAL(cpu_transcoder)); | |
10785 | int vsync = I915_READ(VSYNC(cpu_transcoder)); | |
293623f7 | 10786 | enum pipe pipe = intel_crtc->pipe; |
79e53945 JB |
10787 | |
10788 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); | |
10789 | if (!mode) | |
10790 | return NULL; | |
10791 | ||
3f36b937 TU |
10792 | pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL); |
10793 | if (!pipe_config) { | |
10794 | kfree(mode); | |
10795 | return NULL; | |
10796 | } | |
10797 | ||
f1f644dc JB |
10798 | /* |
10799 | * Construct a pipe_config sufficient for getting the clock info | |
10800 | * back out of crtc_clock_get. | |
10801 | * | |
10802 | * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need | |
10803 | * to use a real value here instead. | |
10804 | */ | |
3f36b937 TU |
10805 | pipe_config->cpu_transcoder = (enum transcoder) pipe; |
10806 | pipe_config->pixel_multiplier = 1; | |
10807 | pipe_config->dpll_hw_state.dpll = I915_READ(DPLL(pipe)); | |
10808 | pipe_config->dpll_hw_state.fp0 = I915_READ(FP0(pipe)); | |
10809 | pipe_config->dpll_hw_state.fp1 = I915_READ(FP1(pipe)); | |
10810 | i9xx_crtc_clock_get(intel_crtc, pipe_config); | |
10811 | ||
10812 | mode->clock = pipe_config->port_clock / pipe_config->pixel_multiplier; | |
79e53945 JB |
10813 | mode->hdisplay = (htot & 0xffff) + 1; |
10814 | mode->htotal = ((htot & 0xffff0000) >> 16) + 1; | |
10815 | mode->hsync_start = (hsync & 0xffff) + 1; | |
10816 | mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; | |
10817 | mode->vdisplay = (vtot & 0xffff) + 1; | |
10818 | mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; | |
10819 | mode->vsync_start = (vsync & 0xffff) + 1; | |
10820 | mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; | |
10821 | ||
10822 | drm_mode_set_name(mode); | |
79e53945 | 10823 | |
3f36b937 TU |
10824 | kfree(pipe_config); |
10825 | ||
79e53945 JB |
10826 | return mode; |
10827 | } | |
10828 | ||
f047e395 CW |
10829 | void intel_mark_busy(struct drm_device *dev) |
10830 | { | |
c67a470b PZ |
10831 | struct drm_i915_private *dev_priv = dev->dev_private; |
10832 | ||
f62a0076 CW |
10833 | if (dev_priv->mm.busy) |
10834 | return; | |
10835 | ||
43694d69 | 10836 | intel_runtime_pm_get(dev_priv); |
c67a470b | 10837 | i915_update_gfx_val(dev_priv); |
43cf3bf0 CW |
10838 | if (INTEL_INFO(dev)->gen >= 6) |
10839 | gen6_rps_busy(dev_priv); | |
f62a0076 | 10840 | dev_priv->mm.busy = true; |
f047e395 CW |
10841 | } |
10842 | ||
10843 | void intel_mark_idle(struct drm_device *dev) | |
652c393a | 10844 | { |
c67a470b | 10845 | struct drm_i915_private *dev_priv = dev->dev_private; |
652c393a | 10846 | |
f62a0076 CW |
10847 | if (!dev_priv->mm.busy) |
10848 | return; | |
10849 | ||
10850 | dev_priv->mm.busy = false; | |
10851 | ||
3d13ef2e | 10852 | if (INTEL_INFO(dev)->gen >= 6) |
b29c19b6 | 10853 | gen6_rps_idle(dev->dev_private); |
bb4cdd53 | 10854 | |
43694d69 | 10855 | intel_runtime_pm_put(dev_priv); |
652c393a JB |
10856 | } |
10857 | ||
79e53945 JB |
10858 | static void intel_crtc_destroy(struct drm_crtc *crtc) |
10859 | { | |
10860 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
67e77c5a DV |
10861 | struct drm_device *dev = crtc->dev; |
10862 | struct intel_unpin_work *work; | |
67e77c5a | 10863 | |
5e2d7afc | 10864 | spin_lock_irq(&dev->event_lock); |
67e77c5a DV |
10865 | work = intel_crtc->unpin_work; |
10866 | intel_crtc->unpin_work = NULL; | |
5e2d7afc | 10867 | spin_unlock_irq(&dev->event_lock); |
67e77c5a DV |
10868 | |
10869 | if (work) { | |
10870 | cancel_work_sync(&work->work); | |
10871 | kfree(work); | |
10872 | } | |
79e53945 JB |
10873 | |
10874 | drm_crtc_cleanup(crtc); | |
67e77c5a | 10875 | |
79e53945 JB |
10876 | kfree(intel_crtc); |
10877 | } | |
10878 | ||
6b95a207 KH |
10879 | static void intel_unpin_work_fn(struct work_struct *__work) |
10880 | { | |
10881 | struct intel_unpin_work *work = | |
10882 | container_of(__work, struct intel_unpin_work, work); | |
a9ff8714 VS |
10883 | struct intel_crtc *crtc = to_intel_crtc(work->crtc); |
10884 | struct drm_device *dev = crtc->base.dev; | |
10885 | struct drm_plane *primary = crtc->base.primary; | |
6b95a207 | 10886 | |
b4a98e57 | 10887 | mutex_lock(&dev->struct_mutex); |
3465c580 | 10888 | intel_unpin_fb_obj(work->old_fb, primary->state->rotation); |
05394f39 | 10889 | drm_gem_object_unreference(&work->pending_flip_obj->base); |
d9e86c0e | 10890 | |
f06cc1b9 | 10891 | if (work->flip_queued_req) |
146d84f0 | 10892 | i915_gem_request_assign(&work->flip_queued_req, NULL); |
b4a98e57 CW |
10893 | mutex_unlock(&dev->struct_mutex); |
10894 | ||
a9ff8714 | 10895 | intel_frontbuffer_flip_complete(dev, to_intel_plane(primary)->frontbuffer_bit); |
1eb52238 | 10896 | intel_fbc_post_update(crtc); |
89ed88ba | 10897 | drm_framebuffer_unreference(work->old_fb); |
f99d7069 | 10898 | |
a9ff8714 VS |
10899 | BUG_ON(atomic_read(&crtc->unpin_work_count) == 0); |
10900 | atomic_dec(&crtc->unpin_work_count); | |
b4a98e57 | 10901 | |
6b95a207 KH |
10902 | kfree(work); |
10903 | } | |
10904 | ||
1afe3e9d | 10905 | static void do_intel_finish_page_flip(struct drm_device *dev, |
49b14a5c | 10906 | struct drm_crtc *crtc) |
6b95a207 | 10907 | { |
6b95a207 KH |
10908 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
10909 | struct intel_unpin_work *work; | |
6b95a207 KH |
10910 | unsigned long flags; |
10911 | ||
10912 | /* Ignore early vblank irqs */ | |
10913 | if (intel_crtc == NULL) | |
10914 | return; | |
10915 | ||
f326038a DV |
10916 | /* |
10917 | * This is called both by irq handlers and the reset code (to complete | |
10918 | * lost pageflips) so needs the full irqsave spinlocks. | |
10919 | */ | |
6b95a207 KH |
10920 | spin_lock_irqsave(&dev->event_lock, flags); |
10921 | work = intel_crtc->unpin_work; | |
e7d841ca CW |
10922 | |
10923 | /* Ensure we don't miss a work->pending update ... */ | |
10924 | smp_rmb(); | |
10925 | ||
10926 | if (work == NULL || atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) { | |
6b95a207 KH |
10927 | spin_unlock_irqrestore(&dev->event_lock, flags); |
10928 | return; | |
10929 | } | |
10930 | ||
d6bbafa1 | 10931 | page_flip_completed(intel_crtc); |
0af7e4df | 10932 | |
6b95a207 | 10933 | spin_unlock_irqrestore(&dev->event_lock, flags); |
6b95a207 KH |
10934 | } |
10935 | ||
1afe3e9d JB |
10936 | void intel_finish_page_flip(struct drm_device *dev, int pipe) |
10937 | { | |
fbee40df | 10938 | struct drm_i915_private *dev_priv = dev->dev_private; |
1afe3e9d JB |
10939 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
10940 | ||
49b14a5c | 10941 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
10942 | } |
10943 | ||
10944 | void intel_finish_page_flip_plane(struct drm_device *dev, int plane) | |
10945 | { | |
fbee40df | 10946 | struct drm_i915_private *dev_priv = dev->dev_private; |
1afe3e9d JB |
10947 | struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane]; |
10948 | ||
49b14a5c | 10949 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
10950 | } |
10951 | ||
75f7f3ec VS |
10952 | /* Is 'a' after or equal to 'b'? */ |
10953 | static bool g4x_flip_count_after_eq(u32 a, u32 b) | |
10954 | { | |
10955 | return !((a - b) & 0x80000000); | |
10956 | } | |
10957 | ||
10958 | static bool page_flip_finished(struct intel_crtc *crtc) | |
10959 | { | |
10960 | struct drm_device *dev = crtc->base.dev; | |
10961 | struct drm_i915_private *dev_priv = dev->dev_private; | |
c19ae989 | 10962 | unsigned reset_counter; |
75f7f3ec | 10963 | |
c19ae989 | 10964 | reset_counter = i915_reset_counter(&dev_priv->gpu_error); |
7f1847eb | 10965 | if (crtc->reset_counter != reset_counter) |
bdfa7542 VS |
10966 | return true; |
10967 | ||
75f7f3ec VS |
10968 | /* |
10969 | * The relevant registers doen't exist on pre-ctg. | |
10970 | * As the flip done interrupt doesn't trigger for mmio | |
10971 | * flips on gmch platforms, a flip count check isn't | |
10972 | * really needed there. But since ctg has the registers, | |
10973 | * include it in the check anyway. | |
10974 | */ | |
10975 | if (INTEL_INFO(dev)->gen < 5 && !IS_G4X(dev)) | |
10976 | return true; | |
10977 | ||
e8861675 ML |
10978 | /* |
10979 | * BDW signals flip done immediately if the plane | |
10980 | * is disabled, even if the plane enable is already | |
10981 | * armed to occur at the next vblank :( | |
10982 | */ | |
10983 | ||
75f7f3ec VS |
10984 | /* |
10985 | * A DSPSURFLIVE check isn't enough in case the mmio and CS flips | |
10986 | * used the same base address. In that case the mmio flip might | |
10987 | * have completed, but the CS hasn't even executed the flip yet. | |
10988 | * | |
10989 | * A flip count check isn't enough as the CS might have updated | |
10990 | * the base address just after start of vblank, but before we | |
10991 | * managed to process the interrupt. This means we'd complete the | |
10992 | * CS flip too soon. | |
10993 | * | |
10994 | * Combining both checks should get us a good enough result. It may | |
10995 | * still happen that the CS flip has been executed, but has not | |
10996 | * yet actually completed. But in case the base address is the same | |
10997 | * anyway, we don't really care. | |
10998 | */ | |
10999 | return (I915_READ(DSPSURFLIVE(crtc->plane)) & ~0xfff) == | |
11000 | crtc->unpin_work->gtt_offset && | |
fd8f507c | 11001 | g4x_flip_count_after_eq(I915_READ(PIPE_FLIPCOUNT_G4X(crtc->pipe)), |
75f7f3ec VS |
11002 | crtc->unpin_work->flip_count); |
11003 | } | |
11004 | ||
6b95a207 KH |
11005 | void intel_prepare_page_flip(struct drm_device *dev, int plane) |
11006 | { | |
fbee40df | 11007 | struct drm_i915_private *dev_priv = dev->dev_private; |
6b95a207 KH |
11008 | struct intel_crtc *intel_crtc = |
11009 | to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]); | |
11010 | unsigned long flags; | |
11011 | ||
f326038a DV |
11012 | |
11013 | /* | |
11014 | * This is called both by irq handlers and the reset code (to complete | |
11015 | * lost pageflips) so needs the full irqsave spinlocks. | |
11016 | * | |
11017 | * NB: An MMIO update of the plane base pointer will also | |
e7d841ca CW |
11018 | * generate a page-flip completion irq, i.e. every modeset |
11019 | * is also accompanied by a spurious intel_prepare_page_flip(). | |
11020 | */ | |
6b95a207 | 11021 | spin_lock_irqsave(&dev->event_lock, flags); |
75f7f3ec | 11022 | if (intel_crtc->unpin_work && page_flip_finished(intel_crtc)) |
e7d841ca | 11023 | atomic_inc_not_zero(&intel_crtc->unpin_work->pending); |
6b95a207 KH |
11024 | spin_unlock_irqrestore(&dev->event_lock, flags); |
11025 | } | |
11026 | ||
6042639c | 11027 | static inline void intel_mark_page_flip_active(struct intel_unpin_work *work) |
e7d841ca CW |
11028 | { |
11029 | /* Ensure that the work item is consistent when activating it ... */ | |
11030 | smp_wmb(); | |
6042639c | 11031 | atomic_set(&work->pending, INTEL_FLIP_PENDING); |
e7d841ca CW |
11032 | /* and that it is marked active as soon as the irq could fire. */ |
11033 | smp_wmb(); | |
11034 | } | |
11035 | ||
8c9f3aaf JB |
11036 | static int intel_gen2_queue_flip(struct drm_device *dev, |
11037 | struct drm_crtc *crtc, | |
11038 | struct drm_framebuffer *fb, | |
ed8d1975 | 11039 | struct drm_i915_gem_object *obj, |
6258fbe2 | 11040 | struct drm_i915_gem_request *req, |
ed8d1975 | 11041 | uint32_t flags) |
8c9f3aaf | 11042 | { |
4a570db5 | 11043 | struct intel_engine_cs *engine = req->engine; |
8c9f3aaf | 11044 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
8c9f3aaf JB |
11045 | u32 flip_mask; |
11046 | int ret; | |
11047 | ||
5fb9de1a | 11048 | ret = intel_ring_begin(req, 6); |
8c9f3aaf | 11049 | if (ret) |
4fa62c89 | 11050 | return ret; |
8c9f3aaf JB |
11051 | |
11052 | /* Can't queue multiple flips, so wait for the previous | |
11053 | * one to finish before executing the next. | |
11054 | */ | |
11055 | if (intel_crtc->plane) | |
11056 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
11057 | else | |
11058 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
e2f80391 TU |
11059 | intel_ring_emit(engine, MI_WAIT_FOR_EVENT | flip_mask); |
11060 | intel_ring_emit(engine, MI_NOOP); | |
11061 | intel_ring_emit(engine, MI_DISPLAY_FLIP | | |
6d90c952 | 11062 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); |
e2f80391 TU |
11063 | intel_ring_emit(engine, fb->pitches[0]); |
11064 | intel_ring_emit(engine, intel_crtc->unpin_work->gtt_offset); | |
11065 | intel_ring_emit(engine, 0); /* aux display base address, unused */ | |
e7d841ca | 11066 | |
6042639c | 11067 | intel_mark_page_flip_active(intel_crtc->unpin_work); |
83d4092b | 11068 | return 0; |
8c9f3aaf JB |
11069 | } |
11070 | ||
11071 | static int intel_gen3_queue_flip(struct drm_device *dev, | |
11072 | struct drm_crtc *crtc, | |
11073 | struct drm_framebuffer *fb, | |
ed8d1975 | 11074 | struct drm_i915_gem_object *obj, |
6258fbe2 | 11075 | struct drm_i915_gem_request *req, |
ed8d1975 | 11076 | uint32_t flags) |
8c9f3aaf | 11077 | { |
4a570db5 | 11078 | struct intel_engine_cs *engine = req->engine; |
8c9f3aaf | 11079 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
8c9f3aaf JB |
11080 | u32 flip_mask; |
11081 | int ret; | |
11082 | ||
5fb9de1a | 11083 | ret = intel_ring_begin(req, 6); |
8c9f3aaf | 11084 | if (ret) |
4fa62c89 | 11085 | return ret; |
8c9f3aaf JB |
11086 | |
11087 | if (intel_crtc->plane) | |
11088 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
11089 | else | |
11090 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
e2f80391 TU |
11091 | intel_ring_emit(engine, MI_WAIT_FOR_EVENT | flip_mask); |
11092 | intel_ring_emit(engine, MI_NOOP); | |
11093 | intel_ring_emit(engine, MI_DISPLAY_FLIP_I915 | | |
6d90c952 | 11094 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); |
e2f80391 TU |
11095 | intel_ring_emit(engine, fb->pitches[0]); |
11096 | intel_ring_emit(engine, intel_crtc->unpin_work->gtt_offset); | |
11097 | intel_ring_emit(engine, MI_NOOP); | |
6d90c952 | 11098 | |
6042639c | 11099 | intel_mark_page_flip_active(intel_crtc->unpin_work); |
83d4092b | 11100 | return 0; |
8c9f3aaf JB |
11101 | } |
11102 | ||
11103 | static int intel_gen4_queue_flip(struct drm_device *dev, | |
11104 | struct drm_crtc *crtc, | |
11105 | struct drm_framebuffer *fb, | |
ed8d1975 | 11106 | struct drm_i915_gem_object *obj, |
6258fbe2 | 11107 | struct drm_i915_gem_request *req, |
ed8d1975 | 11108 | uint32_t flags) |
8c9f3aaf | 11109 | { |
4a570db5 | 11110 | struct intel_engine_cs *engine = req->engine; |
8c9f3aaf JB |
11111 | struct drm_i915_private *dev_priv = dev->dev_private; |
11112 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
11113 | uint32_t pf, pipesrc; | |
11114 | int ret; | |
11115 | ||
5fb9de1a | 11116 | ret = intel_ring_begin(req, 4); |
8c9f3aaf | 11117 | if (ret) |
4fa62c89 | 11118 | return ret; |
8c9f3aaf JB |
11119 | |
11120 | /* i965+ uses the linear or tiled offsets from the | |
11121 | * Display Registers (which do not change across a page-flip) | |
11122 | * so we need only reprogram the base address. | |
11123 | */ | |
e2f80391 | 11124 | intel_ring_emit(engine, MI_DISPLAY_FLIP | |
6d90c952 | 11125 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); |
e2f80391 TU |
11126 | intel_ring_emit(engine, fb->pitches[0]); |
11127 | intel_ring_emit(engine, intel_crtc->unpin_work->gtt_offset | | |
c2c75131 | 11128 | obj->tiling_mode); |
8c9f3aaf JB |
11129 | |
11130 | /* XXX Enabling the panel-fitter across page-flip is so far | |
11131 | * untested on non-native modes, so ignore it for now. | |
11132 | * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE; | |
11133 | */ | |
11134 | pf = 0; | |
11135 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; | |
e2f80391 | 11136 | intel_ring_emit(engine, pf | pipesrc); |
e7d841ca | 11137 | |
6042639c | 11138 | intel_mark_page_flip_active(intel_crtc->unpin_work); |
83d4092b | 11139 | return 0; |
8c9f3aaf JB |
11140 | } |
11141 | ||
11142 | static int intel_gen6_queue_flip(struct drm_device *dev, | |
11143 | struct drm_crtc *crtc, | |
11144 | struct drm_framebuffer *fb, | |
ed8d1975 | 11145 | struct drm_i915_gem_object *obj, |
6258fbe2 | 11146 | struct drm_i915_gem_request *req, |
ed8d1975 | 11147 | uint32_t flags) |
8c9f3aaf | 11148 | { |
4a570db5 | 11149 | struct intel_engine_cs *engine = req->engine; |
8c9f3aaf JB |
11150 | struct drm_i915_private *dev_priv = dev->dev_private; |
11151 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
11152 | uint32_t pf, pipesrc; | |
11153 | int ret; | |
11154 | ||
5fb9de1a | 11155 | ret = intel_ring_begin(req, 4); |
8c9f3aaf | 11156 | if (ret) |
4fa62c89 | 11157 | return ret; |
8c9f3aaf | 11158 | |
e2f80391 | 11159 | intel_ring_emit(engine, MI_DISPLAY_FLIP | |
6d90c952 | 11160 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); |
e2f80391 TU |
11161 | intel_ring_emit(engine, fb->pitches[0] | obj->tiling_mode); |
11162 | intel_ring_emit(engine, intel_crtc->unpin_work->gtt_offset); | |
8c9f3aaf | 11163 | |
dc257cf1 DV |
11164 | /* Contrary to the suggestions in the documentation, |
11165 | * "Enable Panel Fitter" does not seem to be required when page | |
11166 | * flipping with a non-native mode, and worse causes a normal | |
11167 | * modeset to fail. | |
11168 | * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE; | |
11169 | */ | |
11170 | pf = 0; | |
8c9f3aaf | 11171 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; |
e2f80391 | 11172 | intel_ring_emit(engine, pf | pipesrc); |
e7d841ca | 11173 | |
6042639c | 11174 | intel_mark_page_flip_active(intel_crtc->unpin_work); |
83d4092b | 11175 | return 0; |
8c9f3aaf JB |
11176 | } |
11177 | ||
7c9017e5 JB |
11178 | static int intel_gen7_queue_flip(struct drm_device *dev, |
11179 | struct drm_crtc *crtc, | |
11180 | struct drm_framebuffer *fb, | |
ed8d1975 | 11181 | struct drm_i915_gem_object *obj, |
6258fbe2 | 11182 | struct drm_i915_gem_request *req, |
ed8d1975 | 11183 | uint32_t flags) |
7c9017e5 | 11184 | { |
4a570db5 | 11185 | struct intel_engine_cs *engine = req->engine; |
7c9017e5 | 11186 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
cb05d8de | 11187 | uint32_t plane_bit = 0; |
ffe74d75 CW |
11188 | int len, ret; |
11189 | ||
eba905b2 | 11190 | switch (intel_crtc->plane) { |
cb05d8de DV |
11191 | case PLANE_A: |
11192 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A; | |
11193 | break; | |
11194 | case PLANE_B: | |
11195 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B; | |
11196 | break; | |
11197 | case PLANE_C: | |
11198 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C; | |
11199 | break; | |
11200 | default: | |
11201 | WARN_ONCE(1, "unknown plane in flip command\n"); | |
4fa62c89 | 11202 | return -ENODEV; |
cb05d8de DV |
11203 | } |
11204 | ||
ffe74d75 | 11205 | len = 4; |
e2f80391 | 11206 | if (engine->id == RCS) { |
ffe74d75 | 11207 | len += 6; |
f476828a DL |
11208 | /* |
11209 | * On Gen 8, SRM is now taking an extra dword to accommodate | |
11210 | * 48bits addresses, and we need a NOOP for the batch size to | |
11211 | * stay even. | |
11212 | */ | |
11213 | if (IS_GEN8(dev)) | |
11214 | len += 2; | |
11215 | } | |
ffe74d75 | 11216 | |
f66fab8e VS |
11217 | /* |
11218 | * BSpec MI_DISPLAY_FLIP for IVB: | |
11219 | * "The full packet must be contained within the same cache line." | |
11220 | * | |
11221 | * Currently the LRI+SRM+MI_DISPLAY_FLIP all fit within the same | |
11222 | * cacheline, if we ever start emitting more commands before | |
11223 | * the MI_DISPLAY_FLIP we may need to first emit everything else, | |
11224 | * then do the cacheline alignment, and finally emit the | |
11225 | * MI_DISPLAY_FLIP. | |
11226 | */ | |
bba09b12 | 11227 | ret = intel_ring_cacheline_align(req); |
f66fab8e | 11228 | if (ret) |
4fa62c89 | 11229 | return ret; |
f66fab8e | 11230 | |
5fb9de1a | 11231 | ret = intel_ring_begin(req, len); |
7c9017e5 | 11232 | if (ret) |
4fa62c89 | 11233 | return ret; |
7c9017e5 | 11234 | |
ffe74d75 CW |
11235 | /* Unmask the flip-done completion message. Note that the bspec says that |
11236 | * we should do this for both the BCS and RCS, and that we must not unmask | |
11237 | * more than one flip event at any time (or ensure that one flip message | |
11238 | * can be sent by waiting for flip-done prior to queueing new flips). | |
11239 | * Experimentation says that BCS works despite DERRMR masking all | |
11240 | * flip-done completion events and that unmasking all planes at once | |
11241 | * for the RCS also doesn't appear to drop events. Setting the DERRMR | |
11242 | * to zero does lead to lockups within MI_DISPLAY_FLIP. | |
11243 | */ | |
e2f80391 TU |
11244 | if (engine->id == RCS) { |
11245 | intel_ring_emit(engine, MI_LOAD_REGISTER_IMM(1)); | |
11246 | intel_ring_emit_reg(engine, DERRMR); | |
11247 | intel_ring_emit(engine, ~(DERRMR_PIPEA_PRI_FLIP_DONE | | |
11248 | DERRMR_PIPEB_PRI_FLIP_DONE | | |
11249 | DERRMR_PIPEC_PRI_FLIP_DONE)); | |
f476828a | 11250 | if (IS_GEN8(dev)) |
e2f80391 | 11251 | intel_ring_emit(engine, MI_STORE_REGISTER_MEM_GEN8 | |
f476828a DL |
11252 | MI_SRM_LRM_GLOBAL_GTT); |
11253 | else | |
e2f80391 | 11254 | intel_ring_emit(engine, MI_STORE_REGISTER_MEM | |
f476828a | 11255 | MI_SRM_LRM_GLOBAL_GTT); |
e2f80391 TU |
11256 | intel_ring_emit_reg(engine, DERRMR); |
11257 | intel_ring_emit(engine, engine->scratch.gtt_offset + 256); | |
f476828a | 11258 | if (IS_GEN8(dev)) { |
e2f80391 TU |
11259 | intel_ring_emit(engine, 0); |
11260 | intel_ring_emit(engine, MI_NOOP); | |
f476828a | 11261 | } |
ffe74d75 CW |
11262 | } |
11263 | ||
e2f80391 TU |
11264 | intel_ring_emit(engine, MI_DISPLAY_FLIP_I915 | plane_bit); |
11265 | intel_ring_emit(engine, (fb->pitches[0] | obj->tiling_mode)); | |
11266 | intel_ring_emit(engine, intel_crtc->unpin_work->gtt_offset); | |
11267 | intel_ring_emit(engine, (MI_NOOP)); | |
e7d841ca | 11268 | |
6042639c | 11269 | intel_mark_page_flip_active(intel_crtc->unpin_work); |
83d4092b | 11270 | return 0; |
7c9017e5 JB |
11271 | } |
11272 | ||
0bc40be8 | 11273 | static bool use_mmio_flip(struct intel_engine_cs *engine, |
84c33a64 SG |
11274 | struct drm_i915_gem_object *obj) |
11275 | { | |
11276 | /* | |
11277 | * This is not being used for older platforms, because | |
11278 | * non-availability of flip done interrupt forces us to use | |
11279 | * CS flips. Older platforms derive flip done using some clever | |
11280 | * tricks involving the flip_pending status bits and vblank irqs. | |
11281 | * So using MMIO flips there would disrupt this mechanism. | |
11282 | */ | |
11283 | ||
0bc40be8 | 11284 | if (engine == NULL) |
8e09bf83 CW |
11285 | return true; |
11286 | ||
0bc40be8 | 11287 | if (INTEL_INFO(engine->dev)->gen < 5) |
84c33a64 SG |
11288 | return false; |
11289 | ||
11290 | if (i915.use_mmio_flip < 0) | |
11291 | return false; | |
11292 | else if (i915.use_mmio_flip > 0) | |
11293 | return true; | |
14bf993e OM |
11294 | else if (i915.enable_execlists) |
11295 | return true; | |
fd8e058a AG |
11296 | else if (obj->base.dma_buf && |
11297 | !reservation_object_test_signaled_rcu(obj->base.dma_buf->resv, | |
11298 | false)) | |
11299 | return true; | |
84c33a64 | 11300 | else |
666796da | 11301 | return engine != i915_gem_request_get_engine(obj->last_write_req); |
84c33a64 SG |
11302 | } |
11303 | ||
6042639c | 11304 | static void skl_do_mmio_flip(struct intel_crtc *intel_crtc, |
86efe24a | 11305 | unsigned int rotation, |
6042639c | 11306 | struct intel_unpin_work *work) |
ff944564 DL |
11307 | { |
11308 | struct drm_device *dev = intel_crtc->base.dev; | |
11309 | struct drm_i915_private *dev_priv = dev->dev_private; | |
11310 | struct drm_framebuffer *fb = intel_crtc->base.primary->fb; | |
ff944564 | 11311 | const enum pipe pipe = intel_crtc->pipe; |
86efe24a | 11312 | u32 ctl, stride, tile_height; |
ff944564 DL |
11313 | |
11314 | ctl = I915_READ(PLANE_CTL(pipe, 0)); | |
11315 | ctl &= ~PLANE_CTL_TILED_MASK; | |
2ebef630 TU |
11316 | switch (fb->modifier[0]) { |
11317 | case DRM_FORMAT_MOD_NONE: | |
11318 | break; | |
11319 | case I915_FORMAT_MOD_X_TILED: | |
ff944564 | 11320 | ctl |= PLANE_CTL_TILED_X; |
2ebef630 TU |
11321 | break; |
11322 | case I915_FORMAT_MOD_Y_TILED: | |
11323 | ctl |= PLANE_CTL_TILED_Y; | |
11324 | break; | |
11325 | case I915_FORMAT_MOD_Yf_TILED: | |
11326 | ctl |= PLANE_CTL_TILED_YF; | |
11327 | break; | |
11328 | default: | |
11329 | MISSING_CASE(fb->modifier[0]); | |
11330 | } | |
ff944564 DL |
11331 | |
11332 | /* | |
11333 | * The stride is either expressed as a multiple of 64 bytes chunks for | |
11334 | * linear buffers or in number of tiles for tiled buffers. | |
11335 | */ | |
86efe24a TU |
11336 | if (intel_rotation_90_or_270(rotation)) { |
11337 | /* stride = Surface height in tiles */ | |
832be82f | 11338 | tile_height = intel_tile_height(dev_priv, fb->modifier[0], 0); |
86efe24a TU |
11339 | stride = DIV_ROUND_UP(fb->height, tile_height); |
11340 | } else { | |
11341 | stride = fb->pitches[0] / | |
7b49f948 VS |
11342 | intel_fb_stride_alignment(dev_priv, fb->modifier[0], |
11343 | fb->pixel_format); | |
86efe24a | 11344 | } |
ff944564 DL |
11345 | |
11346 | /* | |
11347 | * Both PLANE_CTL and PLANE_STRIDE are not updated on vblank but on | |
11348 | * PLANE_SURF updates, the update is then guaranteed to be atomic. | |
11349 | */ | |
11350 | I915_WRITE(PLANE_CTL(pipe, 0), ctl); | |
11351 | I915_WRITE(PLANE_STRIDE(pipe, 0), stride); | |
11352 | ||
6042639c | 11353 | I915_WRITE(PLANE_SURF(pipe, 0), work->gtt_offset); |
ff944564 DL |
11354 | POSTING_READ(PLANE_SURF(pipe, 0)); |
11355 | } | |
11356 | ||
6042639c CW |
11357 | static void ilk_do_mmio_flip(struct intel_crtc *intel_crtc, |
11358 | struct intel_unpin_work *work) | |
84c33a64 SG |
11359 | { |
11360 | struct drm_device *dev = intel_crtc->base.dev; | |
11361 | struct drm_i915_private *dev_priv = dev->dev_private; | |
11362 | struct intel_framebuffer *intel_fb = | |
11363 | to_intel_framebuffer(intel_crtc->base.primary->fb); | |
11364 | struct drm_i915_gem_object *obj = intel_fb->obj; | |
f0f59a00 | 11365 | i915_reg_t reg = DSPCNTR(intel_crtc->plane); |
84c33a64 | 11366 | u32 dspcntr; |
84c33a64 | 11367 | |
84c33a64 SG |
11368 | dspcntr = I915_READ(reg); |
11369 | ||
c5d97472 DL |
11370 | if (obj->tiling_mode != I915_TILING_NONE) |
11371 | dspcntr |= DISPPLANE_TILED; | |
11372 | else | |
11373 | dspcntr &= ~DISPPLANE_TILED; | |
11374 | ||
84c33a64 SG |
11375 | I915_WRITE(reg, dspcntr); |
11376 | ||
6042639c | 11377 | I915_WRITE(DSPSURF(intel_crtc->plane), work->gtt_offset); |
84c33a64 | 11378 | POSTING_READ(DSPSURF(intel_crtc->plane)); |
ff944564 DL |
11379 | } |
11380 | ||
11381 | /* | |
11382 | * XXX: This is the temporary way to update the plane registers until we get | |
11383 | * around to using the usual plane update functions for MMIO flips | |
11384 | */ | |
6042639c | 11385 | static void intel_do_mmio_flip(struct intel_mmio_flip *mmio_flip) |
ff944564 | 11386 | { |
6042639c CW |
11387 | struct intel_crtc *crtc = mmio_flip->crtc; |
11388 | struct intel_unpin_work *work; | |
11389 | ||
11390 | spin_lock_irq(&crtc->base.dev->event_lock); | |
11391 | work = crtc->unpin_work; | |
11392 | spin_unlock_irq(&crtc->base.dev->event_lock); | |
11393 | if (work == NULL) | |
11394 | return; | |
ff944564 | 11395 | |
6042639c | 11396 | intel_mark_page_flip_active(work); |
ff944564 | 11397 | |
6042639c | 11398 | intel_pipe_update_start(crtc); |
ff944564 | 11399 | |
6042639c | 11400 | if (INTEL_INFO(mmio_flip->i915)->gen >= 9) |
86efe24a | 11401 | skl_do_mmio_flip(crtc, mmio_flip->rotation, work); |
ff944564 DL |
11402 | else |
11403 | /* use_mmio_flip() retricts MMIO flips to ilk+ */ | |
6042639c | 11404 | ilk_do_mmio_flip(crtc, work); |
ff944564 | 11405 | |
6042639c | 11406 | intel_pipe_update_end(crtc); |
84c33a64 SG |
11407 | } |
11408 | ||
9362c7c5 | 11409 | static void intel_mmio_flip_work_func(struct work_struct *work) |
84c33a64 | 11410 | { |
b2cfe0ab CW |
11411 | struct intel_mmio_flip *mmio_flip = |
11412 | container_of(work, struct intel_mmio_flip, work); | |
fd8e058a AG |
11413 | struct intel_framebuffer *intel_fb = |
11414 | to_intel_framebuffer(mmio_flip->crtc->base.primary->fb); | |
11415 | struct drm_i915_gem_object *obj = intel_fb->obj; | |
84c33a64 | 11416 | |
6042639c | 11417 | if (mmio_flip->req) { |
eed29a5b | 11418 | WARN_ON(__i915_wait_request(mmio_flip->req, |
bcafc4e3 CW |
11419 | false, NULL, |
11420 | &mmio_flip->i915->rps.mmioflips)); | |
6042639c CW |
11421 | i915_gem_request_unreference__unlocked(mmio_flip->req); |
11422 | } | |
84c33a64 | 11423 | |
fd8e058a AG |
11424 | /* For framebuffer backed by dmabuf, wait for fence */ |
11425 | if (obj->base.dma_buf) | |
11426 | WARN_ON(reservation_object_wait_timeout_rcu(obj->base.dma_buf->resv, | |
11427 | false, false, | |
11428 | MAX_SCHEDULE_TIMEOUT) < 0); | |
11429 | ||
6042639c | 11430 | intel_do_mmio_flip(mmio_flip); |
b2cfe0ab | 11431 | kfree(mmio_flip); |
84c33a64 SG |
11432 | } |
11433 | ||
11434 | static int intel_queue_mmio_flip(struct drm_device *dev, | |
11435 | struct drm_crtc *crtc, | |
86efe24a | 11436 | struct drm_i915_gem_object *obj) |
84c33a64 | 11437 | { |
b2cfe0ab CW |
11438 | struct intel_mmio_flip *mmio_flip; |
11439 | ||
11440 | mmio_flip = kmalloc(sizeof(*mmio_flip), GFP_KERNEL); | |
11441 | if (mmio_flip == NULL) | |
11442 | return -ENOMEM; | |
84c33a64 | 11443 | |
bcafc4e3 | 11444 | mmio_flip->i915 = to_i915(dev); |
eed29a5b | 11445 | mmio_flip->req = i915_gem_request_reference(obj->last_write_req); |
b2cfe0ab | 11446 | mmio_flip->crtc = to_intel_crtc(crtc); |
86efe24a | 11447 | mmio_flip->rotation = crtc->primary->state->rotation; |
536f5b5e | 11448 | |
b2cfe0ab CW |
11449 | INIT_WORK(&mmio_flip->work, intel_mmio_flip_work_func); |
11450 | schedule_work(&mmio_flip->work); | |
84c33a64 | 11451 | |
84c33a64 SG |
11452 | return 0; |
11453 | } | |
11454 | ||
8c9f3aaf JB |
11455 | static int intel_default_queue_flip(struct drm_device *dev, |
11456 | struct drm_crtc *crtc, | |
11457 | struct drm_framebuffer *fb, | |
ed8d1975 | 11458 | struct drm_i915_gem_object *obj, |
6258fbe2 | 11459 | struct drm_i915_gem_request *req, |
ed8d1975 | 11460 | uint32_t flags) |
8c9f3aaf JB |
11461 | { |
11462 | return -ENODEV; | |
11463 | } | |
11464 | ||
d6bbafa1 CW |
11465 | static bool __intel_pageflip_stall_check(struct drm_device *dev, |
11466 | struct drm_crtc *crtc) | |
11467 | { | |
11468 | struct drm_i915_private *dev_priv = dev->dev_private; | |
11469 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
11470 | struct intel_unpin_work *work = intel_crtc->unpin_work; | |
11471 | u32 addr; | |
11472 | ||
11473 | if (atomic_read(&work->pending) >= INTEL_FLIP_COMPLETE) | |
11474 | return true; | |
11475 | ||
908565c2 CW |
11476 | if (atomic_read(&work->pending) < INTEL_FLIP_PENDING) |
11477 | return false; | |
11478 | ||
d6bbafa1 CW |
11479 | if (!work->enable_stall_check) |
11480 | return false; | |
11481 | ||
11482 | if (work->flip_ready_vblank == 0) { | |
3a8a946e DV |
11483 | if (work->flip_queued_req && |
11484 | !i915_gem_request_completed(work->flip_queued_req, true)) | |
d6bbafa1 CW |
11485 | return false; |
11486 | ||
1e3feefd | 11487 | work->flip_ready_vblank = drm_crtc_vblank_count(crtc); |
d6bbafa1 CW |
11488 | } |
11489 | ||
1e3feefd | 11490 | if (drm_crtc_vblank_count(crtc) - work->flip_ready_vblank < 3) |
d6bbafa1 CW |
11491 | return false; |
11492 | ||
11493 | /* Potential stall - if we see that the flip has happened, | |
11494 | * assume a missed interrupt. */ | |
11495 | if (INTEL_INFO(dev)->gen >= 4) | |
11496 | addr = I915_HI_DISPBASE(I915_READ(DSPSURF(intel_crtc->plane))); | |
11497 | else | |
11498 | addr = I915_READ(DSPADDR(intel_crtc->plane)); | |
11499 | ||
11500 | /* There is a potential issue here with a false positive after a flip | |
11501 | * to the same address. We could address this by checking for a | |
11502 | * non-incrementing frame counter. | |
11503 | */ | |
11504 | return addr == work->gtt_offset; | |
11505 | } | |
11506 | ||
11507 | void intel_check_page_flip(struct drm_device *dev, int pipe) | |
11508 | { | |
11509 | struct drm_i915_private *dev_priv = dev->dev_private; | |
11510 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
11511 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6ad790c0 | 11512 | struct intel_unpin_work *work; |
f326038a | 11513 | |
6c51d46f | 11514 | WARN_ON(!in_interrupt()); |
d6bbafa1 CW |
11515 | |
11516 | if (crtc == NULL) | |
11517 | return; | |
11518 | ||
f326038a | 11519 | spin_lock(&dev->event_lock); |
6ad790c0 CW |
11520 | work = intel_crtc->unpin_work; |
11521 | if (work != NULL && __intel_pageflip_stall_check(dev, crtc)) { | |
d6bbafa1 | 11522 | WARN_ONCE(1, "Kicking stuck page flip: queued at %d, now %d\n", |
6ad790c0 | 11523 | work->flip_queued_vblank, drm_vblank_count(dev, pipe)); |
d6bbafa1 | 11524 | page_flip_completed(intel_crtc); |
6ad790c0 | 11525 | work = NULL; |
d6bbafa1 | 11526 | } |
6ad790c0 CW |
11527 | if (work != NULL && |
11528 | drm_vblank_count(dev, pipe) - work->flip_queued_vblank > 1) | |
11529 | intel_queue_rps_boost_for_request(dev, work->flip_queued_req); | |
f326038a | 11530 | spin_unlock(&dev->event_lock); |
d6bbafa1 CW |
11531 | } |
11532 | ||
6b95a207 KH |
11533 | static int intel_crtc_page_flip(struct drm_crtc *crtc, |
11534 | struct drm_framebuffer *fb, | |
ed8d1975 KP |
11535 | struct drm_pending_vblank_event *event, |
11536 | uint32_t page_flip_flags) | |
6b95a207 KH |
11537 | { |
11538 | struct drm_device *dev = crtc->dev; | |
11539 | struct drm_i915_private *dev_priv = dev->dev_private; | |
f4510a27 | 11540 | struct drm_framebuffer *old_fb = crtc->primary->fb; |
2ff8fde1 | 11541 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
6b95a207 | 11542 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
455a6808 | 11543 | struct drm_plane *primary = crtc->primary; |
a071fa00 | 11544 | enum pipe pipe = intel_crtc->pipe; |
6b95a207 | 11545 | struct intel_unpin_work *work; |
e2f80391 | 11546 | struct intel_engine_cs *engine; |
cf5d8a46 | 11547 | bool mmio_flip; |
91af127f | 11548 | struct drm_i915_gem_request *request = NULL; |
52e68630 | 11549 | int ret; |
6b95a207 | 11550 | |
2ff8fde1 MR |
11551 | /* |
11552 | * drm_mode_page_flip_ioctl() should already catch this, but double | |
11553 | * check to be safe. In the future we may enable pageflipping from | |
11554 | * a disabled primary plane. | |
11555 | */ | |
11556 | if (WARN_ON(intel_fb_obj(old_fb) == NULL)) | |
11557 | return -EBUSY; | |
11558 | ||
e6a595d2 | 11559 | /* Can't change pixel format via MI display flips. */ |
f4510a27 | 11560 | if (fb->pixel_format != crtc->primary->fb->pixel_format) |
e6a595d2 VS |
11561 | return -EINVAL; |
11562 | ||
11563 | /* | |
11564 | * TILEOFF/LINOFF registers can't be changed via MI display flips. | |
11565 | * Note that pitch changes could also affect these register. | |
11566 | */ | |
11567 | if (INTEL_INFO(dev)->gen > 3 && | |
f4510a27 MR |
11568 | (fb->offsets[0] != crtc->primary->fb->offsets[0] || |
11569 | fb->pitches[0] != crtc->primary->fb->pitches[0])) | |
e6a595d2 VS |
11570 | return -EINVAL; |
11571 | ||
f900db47 CW |
11572 | if (i915_terminally_wedged(&dev_priv->gpu_error)) |
11573 | goto out_hang; | |
11574 | ||
b14c5679 | 11575 | work = kzalloc(sizeof(*work), GFP_KERNEL); |
6b95a207 KH |
11576 | if (work == NULL) |
11577 | return -ENOMEM; | |
11578 | ||
6b95a207 | 11579 | work->event = event; |
b4a98e57 | 11580 | work->crtc = crtc; |
ab8d6675 | 11581 | work->old_fb = old_fb; |
6b95a207 KH |
11582 | INIT_WORK(&work->work, intel_unpin_work_fn); |
11583 | ||
87b6b101 | 11584 | ret = drm_crtc_vblank_get(crtc); |
7317c75e JB |
11585 | if (ret) |
11586 | goto free_work; | |
11587 | ||
6b95a207 | 11588 | /* We borrow the event spin lock for protecting unpin_work */ |
5e2d7afc | 11589 | spin_lock_irq(&dev->event_lock); |
6b95a207 | 11590 | if (intel_crtc->unpin_work) { |
d6bbafa1 CW |
11591 | /* Before declaring the flip queue wedged, check if |
11592 | * the hardware completed the operation behind our backs. | |
11593 | */ | |
11594 | if (__intel_pageflip_stall_check(dev, crtc)) { | |
11595 | DRM_DEBUG_DRIVER("flip queue: previous flip completed, continuing\n"); | |
11596 | page_flip_completed(intel_crtc); | |
11597 | } else { | |
11598 | DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); | |
5e2d7afc | 11599 | spin_unlock_irq(&dev->event_lock); |
468f0b44 | 11600 | |
d6bbafa1 CW |
11601 | drm_crtc_vblank_put(crtc); |
11602 | kfree(work); | |
11603 | return -EBUSY; | |
11604 | } | |
6b95a207 KH |
11605 | } |
11606 | intel_crtc->unpin_work = work; | |
5e2d7afc | 11607 | spin_unlock_irq(&dev->event_lock); |
6b95a207 | 11608 | |
b4a98e57 CW |
11609 | if (atomic_read(&intel_crtc->unpin_work_count) >= 2) |
11610 | flush_workqueue(dev_priv->wq); | |
11611 | ||
75dfca80 | 11612 | /* Reference the objects for the scheduled work. */ |
ab8d6675 | 11613 | drm_framebuffer_reference(work->old_fb); |
05394f39 | 11614 | drm_gem_object_reference(&obj->base); |
6b95a207 | 11615 | |
f4510a27 | 11616 | crtc->primary->fb = fb; |
afd65eb4 | 11617 | update_state_fb(crtc->primary); |
e8216e50 | 11618 | intel_fbc_pre_update(intel_crtc); |
1ed1f968 | 11619 | |
e1f99ce6 | 11620 | work->pending_flip_obj = obj; |
e1f99ce6 | 11621 | |
89ed88ba CW |
11622 | ret = i915_mutex_lock_interruptible(dev); |
11623 | if (ret) | |
11624 | goto cleanup; | |
11625 | ||
c19ae989 | 11626 | intel_crtc->reset_counter = i915_reset_counter(&dev_priv->gpu_error); |
7f1847eb CW |
11627 | if (__i915_reset_in_progress_or_wedged(intel_crtc->reset_counter)) { |
11628 | ret = -EIO; | |
11629 | goto cleanup; | |
11630 | } | |
11631 | ||
b4a98e57 | 11632 | atomic_inc(&intel_crtc->unpin_work_count); |
e1f99ce6 | 11633 | |
75f7f3ec | 11634 | if (INTEL_INFO(dev)->gen >= 5 || IS_G4X(dev)) |
fd8f507c | 11635 | work->flip_count = I915_READ(PIPE_FLIPCOUNT_G4X(pipe)) + 1; |
75f7f3ec | 11636 | |
666a4537 | 11637 | if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { |
4a570db5 | 11638 | engine = &dev_priv->engine[BCS]; |
ab8d6675 | 11639 | if (obj->tiling_mode != intel_fb_obj(work->old_fb)->tiling_mode) |
8e09bf83 | 11640 | /* vlv: DISPLAY_FLIP fails to change tiling */ |
e2f80391 | 11641 | engine = NULL; |
48bf5b2d | 11642 | } else if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) { |
4a570db5 | 11643 | engine = &dev_priv->engine[BCS]; |
4fa62c89 | 11644 | } else if (INTEL_INFO(dev)->gen >= 7) { |
666796da | 11645 | engine = i915_gem_request_get_engine(obj->last_write_req); |
e2f80391 | 11646 | if (engine == NULL || engine->id != RCS) |
4a570db5 | 11647 | engine = &dev_priv->engine[BCS]; |
4fa62c89 | 11648 | } else { |
4a570db5 | 11649 | engine = &dev_priv->engine[RCS]; |
4fa62c89 VS |
11650 | } |
11651 | ||
e2f80391 | 11652 | mmio_flip = use_mmio_flip(engine, obj); |
cf5d8a46 CW |
11653 | |
11654 | /* When using CS flips, we want to emit semaphores between rings. | |
11655 | * However, when using mmio flips we will create a task to do the | |
11656 | * synchronisation, so all we want here is to pin the framebuffer | |
11657 | * into the display plane and skip any waits. | |
11658 | */ | |
7580d774 | 11659 | if (!mmio_flip) { |
e2f80391 | 11660 | ret = i915_gem_object_sync(obj, engine, &request); |
7580d774 ML |
11661 | if (ret) |
11662 | goto cleanup_pending; | |
11663 | } | |
11664 | ||
3465c580 | 11665 | ret = intel_pin_and_fence_fb_obj(fb, primary->state->rotation); |
8c9f3aaf JB |
11666 | if (ret) |
11667 | goto cleanup_pending; | |
6b95a207 | 11668 | |
dedf278c TU |
11669 | work->gtt_offset = intel_plane_obj_offset(to_intel_plane(primary), |
11670 | obj, 0); | |
11671 | work->gtt_offset += intel_crtc->dspaddr_offset; | |
4fa62c89 | 11672 | |
cf5d8a46 | 11673 | if (mmio_flip) { |
86efe24a | 11674 | ret = intel_queue_mmio_flip(dev, crtc, obj); |
d6bbafa1 CW |
11675 | if (ret) |
11676 | goto cleanup_unpin; | |
11677 | ||
f06cc1b9 JH |
11678 | i915_gem_request_assign(&work->flip_queued_req, |
11679 | obj->last_write_req); | |
d6bbafa1 | 11680 | } else { |
6258fbe2 | 11681 | if (!request) { |
e2f80391 | 11682 | request = i915_gem_request_alloc(engine, NULL); |
26827088 DG |
11683 | if (IS_ERR(request)) { |
11684 | ret = PTR_ERR(request); | |
6258fbe2 | 11685 | goto cleanup_unpin; |
26827088 | 11686 | } |
6258fbe2 JH |
11687 | } |
11688 | ||
11689 | ret = dev_priv->display.queue_flip(dev, crtc, fb, obj, request, | |
d6bbafa1 CW |
11690 | page_flip_flags); |
11691 | if (ret) | |
11692 | goto cleanup_unpin; | |
11693 | ||
6258fbe2 | 11694 | i915_gem_request_assign(&work->flip_queued_req, request); |
d6bbafa1 CW |
11695 | } |
11696 | ||
91af127f | 11697 | if (request) |
75289874 | 11698 | i915_add_request_no_flush(request); |
91af127f | 11699 | |
1e3feefd | 11700 | work->flip_queued_vblank = drm_crtc_vblank_count(crtc); |
d6bbafa1 | 11701 | work->enable_stall_check = true; |
4fa62c89 | 11702 | |
ab8d6675 | 11703 | i915_gem_track_fb(intel_fb_obj(work->old_fb), obj, |
a9ff8714 | 11704 | to_intel_plane(primary)->frontbuffer_bit); |
c80ac854 | 11705 | mutex_unlock(&dev->struct_mutex); |
a071fa00 | 11706 | |
a9ff8714 VS |
11707 | intel_frontbuffer_flip_prepare(dev, |
11708 | to_intel_plane(primary)->frontbuffer_bit); | |
6b95a207 | 11709 | |
e5510fac JB |
11710 | trace_i915_flip_request(intel_crtc->plane, obj); |
11711 | ||
6b95a207 | 11712 | return 0; |
96b099fd | 11713 | |
4fa62c89 | 11714 | cleanup_unpin: |
3465c580 | 11715 | intel_unpin_fb_obj(fb, crtc->primary->state->rotation); |
8c9f3aaf | 11716 | cleanup_pending: |
0aa498d5 | 11717 | if (!IS_ERR_OR_NULL(request)) |
aa9b7810 | 11718 | i915_add_request_no_flush(request); |
b4a98e57 | 11719 | atomic_dec(&intel_crtc->unpin_work_count); |
89ed88ba CW |
11720 | mutex_unlock(&dev->struct_mutex); |
11721 | cleanup: | |
f4510a27 | 11722 | crtc->primary->fb = old_fb; |
afd65eb4 | 11723 | update_state_fb(crtc->primary); |
89ed88ba CW |
11724 | |
11725 | drm_gem_object_unreference_unlocked(&obj->base); | |
ab8d6675 | 11726 | drm_framebuffer_unreference(work->old_fb); |
96b099fd | 11727 | |
5e2d7afc | 11728 | spin_lock_irq(&dev->event_lock); |
96b099fd | 11729 | intel_crtc->unpin_work = NULL; |
5e2d7afc | 11730 | spin_unlock_irq(&dev->event_lock); |
96b099fd | 11731 | |
87b6b101 | 11732 | drm_crtc_vblank_put(crtc); |
7317c75e | 11733 | free_work: |
96b099fd CW |
11734 | kfree(work); |
11735 | ||
f900db47 | 11736 | if (ret == -EIO) { |
02e0efb5 ML |
11737 | struct drm_atomic_state *state; |
11738 | struct drm_plane_state *plane_state; | |
11739 | ||
f900db47 | 11740 | out_hang: |
02e0efb5 ML |
11741 | state = drm_atomic_state_alloc(dev); |
11742 | if (!state) | |
11743 | return -ENOMEM; | |
11744 | state->acquire_ctx = drm_modeset_legacy_acquire_ctx(crtc); | |
11745 | ||
11746 | retry: | |
11747 | plane_state = drm_atomic_get_plane_state(state, primary); | |
11748 | ret = PTR_ERR_OR_ZERO(plane_state); | |
11749 | if (!ret) { | |
11750 | drm_atomic_set_fb_for_plane(plane_state, fb); | |
11751 | ||
11752 | ret = drm_atomic_set_crtc_for_plane(plane_state, crtc); | |
11753 | if (!ret) | |
11754 | ret = drm_atomic_commit(state); | |
11755 | } | |
11756 | ||
11757 | if (ret == -EDEADLK) { | |
11758 | drm_modeset_backoff(state->acquire_ctx); | |
11759 | drm_atomic_state_clear(state); | |
11760 | goto retry; | |
11761 | } | |
11762 | ||
11763 | if (ret) | |
11764 | drm_atomic_state_free(state); | |
11765 | ||
f0d3dad3 | 11766 | if (ret == 0 && event) { |
5e2d7afc | 11767 | spin_lock_irq(&dev->event_lock); |
560ce1dc | 11768 | drm_crtc_send_vblank_event(crtc, event); |
5e2d7afc | 11769 | spin_unlock_irq(&dev->event_lock); |
f0d3dad3 | 11770 | } |
f900db47 | 11771 | } |
96b099fd | 11772 | return ret; |
6b95a207 KH |
11773 | } |
11774 | ||
da20eabd ML |
11775 | |
11776 | /** | |
11777 | * intel_wm_need_update - Check whether watermarks need updating | |
11778 | * @plane: drm plane | |
11779 | * @state: new plane state | |
11780 | * | |
11781 | * Check current plane state versus the new one to determine whether | |
11782 | * watermarks need to be recalculated. | |
11783 | * | |
11784 | * Returns true or false. | |
11785 | */ | |
11786 | static bool intel_wm_need_update(struct drm_plane *plane, | |
11787 | struct drm_plane_state *state) | |
11788 | { | |
d21fbe87 MR |
11789 | struct intel_plane_state *new = to_intel_plane_state(state); |
11790 | struct intel_plane_state *cur = to_intel_plane_state(plane->state); | |
11791 | ||
11792 | /* Update watermarks on tiling or size changes. */ | |
92826fcd ML |
11793 | if (new->visible != cur->visible) |
11794 | return true; | |
11795 | ||
11796 | if (!cur->base.fb || !new->base.fb) | |
11797 | return false; | |
11798 | ||
11799 | if (cur->base.fb->modifier[0] != new->base.fb->modifier[0] || | |
11800 | cur->base.rotation != new->base.rotation || | |
d21fbe87 MR |
11801 | drm_rect_width(&new->src) != drm_rect_width(&cur->src) || |
11802 | drm_rect_height(&new->src) != drm_rect_height(&cur->src) || | |
11803 | drm_rect_width(&new->dst) != drm_rect_width(&cur->dst) || | |
11804 | drm_rect_height(&new->dst) != drm_rect_height(&cur->dst)) | |
2791a16c | 11805 | return true; |
7809e5ae | 11806 | |
2791a16c | 11807 | return false; |
7809e5ae MR |
11808 | } |
11809 | ||
d21fbe87 MR |
11810 | static bool needs_scaling(struct intel_plane_state *state) |
11811 | { | |
11812 | int src_w = drm_rect_width(&state->src) >> 16; | |
11813 | int src_h = drm_rect_height(&state->src) >> 16; | |
11814 | int dst_w = drm_rect_width(&state->dst); | |
11815 | int dst_h = drm_rect_height(&state->dst); | |
11816 | ||
11817 | return (src_w != dst_w || src_h != dst_h); | |
11818 | } | |
11819 | ||
da20eabd ML |
11820 | int intel_plane_atomic_calc_changes(struct drm_crtc_state *crtc_state, |
11821 | struct drm_plane_state *plane_state) | |
11822 | { | |
ab1d3a0e | 11823 | struct intel_crtc_state *pipe_config = to_intel_crtc_state(crtc_state); |
da20eabd ML |
11824 | struct drm_crtc *crtc = crtc_state->crtc; |
11825 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
11826 | struct drm_plane *plane = plane_state->plane; | |
11827 | struct drm_device *dev = crtc->dev; | |
ed4a6a7c | 11828 | struct drm_i915_private *dev_priv = to_i915(dev); |
da20eabd ML |
11829 | struct intel_plane_state *old_plane_state = |
11830 | to_intel_plane_state(plane->state); | |
11831 | int idx = intel_crtc->base.base.id, ret; | |
da20eabd ML |
11832 | bool mode_changed = needs_modeset(crtc_state); |
11833 | bool was_crtc_enabled = crtc->state->active; | |
11834 | bool is_crtc_enabled = crtc_state->active; | |
da20eabd ML |
11835 | bool turn_off, turn_on, visible, was_visible; |
11836 | struct drm_framebuffer *fb = plane_state->fb; | |
11837 | ||
11838 | if (crtc_state && INTEL_INFO(dev)->gen >= 9 && | |
11839 | plane->type != DRM_PLANE_TYPE_CURSOR) { | |
11840 | ret = skl_update_scaler_plane( | |
11841 | to_intel_crtc_state(crtc_state), | |
11842 | to_intel_plane_state(plane_state)); | |
11843 | if (ret) | |
11844 | return ret; | |
11845 | } | |
11846 | ||
da20eabd ML |
11847 | was_visible = old_plane_state->visible; |
11848 | visible = to_intel_plane_state(plane_state)->visible; | |
11849 | ||
11850 | if (!was_crtc_enabled && WARN_ON(was_visible)) | |
11851 | was_visible = false; | |
11852 | ||
35c08f43 ML |
11853 | /* |
11854 | * Visibility is calculated as if the crtc was on, but | |
11855 | * after scaler setup everything depends on it being off | |
11856 | * when the crtc isn't active. | |
11857 | */ | |
11858 | if (!is_crtc_enabled) | |
11859 | to_intel_plane_state(plane_state)->visible = visible = false; | |
da20eabd ML |
11860 | |
11861 | if (!was_visible && !visible) | |
11862 | return 0; | |
11863 | ||
e8861675 ML |
11864 | if (fb != old_plane_state->base.fb) |
11865 | pipe_config->fb_changed = true; | |
11866 | ||
da20eabd ML |
11867 | turn_off = was_visible && (!visible || mode_changed); |
11868 | turn_on = visible && (!was_visible || mode_changed); | |
11869 | ||
11870 | DRM_DEBUG_ATOMIC("[CRTC:%i] has [PLANE:%i] with fb %i\n", idx, | |
11871 | plane->base.id, fb ? fb->base.id : -1); | |
11872 | ||
11873 | DRM_DEBUG_ATOMIC("[PLANE:%i] visible %i -> %i, off %i, on %i, ms %i\n", | |
11874 | plane->base.id, was_visible, visible, | |
11875 | turn_off, turn_on, mode_changed); | |
11876 | ||
caed361d VS |
11877 | if (turn_on) { |
11878 | pipe_config->update_wm_pre = true; | |
11879 | ||
11880 | /* must disable cxsr around plane enable/disable */ | |
11881 | if (plane->type != DRM_PLANE_TYPE_CURSOR) | |
11882 | pipe_config->disable_cxsr = true; | |
11883 | } else if (turn_off) { | |
11884 | pipe_config->update_wm_post = true; | |
92826fcd | 11885 | |
852eb00d | 11886 | /* must disable cxsr around plane enable/disable */ |
e8861675 | 11887 | if (plane->type != DRM_PLANE_TYPE_CURSOR) |
ab1d3a0e | 11888 | pipe_config->disable_cxsr = true; |
852eb00d | 11889 | } else if (intel_wm_need_update(plane, plane_state)) { |
caed361d VS |
11890 | /* FIXME bollocks */ |
11891 | pipe_config->update_wm_pre = true; | |
11892 | pipe_config->update_wm_post = true; | |
852eb00d | 11893 | } |
da20eabd | 11894 | |
ed4a6a7c | 11895 | /* Pre-gen9 platforms need two-step watermark updates */ |
caed361d VS |
11896 | if ((pipe_config->update_wm_pre || pipe_config->update_wm_post) && |
11897 | INTEL_INFO(dev)->gen < 9 && dev_priv->display.optimize_watermarks) | |
ed4a6a7c | 11898 | to_intel_crtc_state(crtc_state)->wm.need_postvbl_update = true; |
a9ff8714 | 11899 | |
8be6ca85 | 11900 | if (visible || was_visible) |
cd202f69 | 11901 | pipe_config->fb_bits |= to_intel_plane(plane)->frontbuffer_bit; |
da20eabd | 11902 | |
31ae71fc ML |
11903 | /* |
11904 | * WaCxSRDisabledForSpriteScaling:ivb | |
11905 | * | |
11906 | * cstate->update_wm was already set above, so this flag will | |
11907 | * take effect when we commit and program watermarks. | |
11908 | */ | |
11909 | if (plane->type == DRM_PLANE_TYPE_OVERLAY && IS_IVYBRIDGE(dev) && | |
11910 | needs_scaling(to_intel_plane_state(plane_state)) && | |
11911 | !needs_scaling(old_plane_state)) | |
11912 | pipe_config->disable_lp_wm = true; | |
d21fbe87 | 11913 | |
da20eabd ML |
11914 | return 0; |
11915 | } | |
11916 | ||
6d3a1ce7 ML |
11917 | static bool encoders_cloneable(const struct intel_encoder *a, |
11918 | const struct intel_encoder *b) | |
11919 | { | |
11920 | /* masks could be asymmetric, so check both ways */ | |
11921 | return a == b || (a->cloneable & (1 << b->type) && | |
11922 | b->cloneable & (1 << a->type)); | |
11923 | } | |
11924 | ||
11925 | static bool check_single_encoder_cloning(struct drm_atomic_state *state, | |
11926 | struct intel_crtc *crtc, | |
11927 | struct intel_encoder *encoder) | |
11928 | { | |
11929 | struct intel_encoder *source_encoder; | |
11930 | struct drm_connector *connector; | |
11931 | struct drm_connector_state *connector_state; | |
11932 | int i; | |
11933 | ||
11934 | for_each_connector_in_state(state, connector, connector_state, i) { | |
11935 | if (connector_state->crtc != &crtc->base) | |
11936 | continue; | |
11937 | ||
11938 | source_encoder = | |
11939 | to_intel_encoder(connector_state->best_encoder); | |
11940 | if (!encoders_cloneable(encoder, source_encoder)) | |
11941 | return false; | |
11942 | } | |
11943 | ||
11944 | return true; | |
11945 | } | |
11946 | ||
11947 | static bool check_encoder_cloning(struct drm_atomic_state *state, | |
11948 | struct intel_crtc *crtc) | |
11949 | { | |
11950 | struct intel_encoder *encoder; | |
11951 | struct drm_connector *connector; | |
11952 | struct drm_connector_state *connector_state; | |
11953 | int i; | |
11954 | ||
11955 | for_each_connector_in_state(state, connector, connector_state, i) { | |
11956 | if (connector_state->crtc != &crtc->base) | |
11957 | continue; | |
11958 | ||
11959 | encoder = to_intel_encoder(connector_state->best_encoder); | |
11960 | if (!check_single_encoder_cloning(state, crtc, encoder)) | |
11961 | return false; | |
11962 | } | |
11963 | ||
11964 | return true; | |
11965 | } | |
11966 | ||
11967 | static int intel_crtc_atomic_check(struct drm_crtc *crtc, | |
11968 | struct drm_crtc_state *crtc_state) | |
11969 | { | |
cf5a15be | 11970 | struct drm_device *dev = crtc->dev; |
ad421372 | 11971 | struct drm_i915_private *dev_priv = dev->dev_private; |
6d3a1ce7 | 11972 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
cf5a15be ML |
11973 | struct intel_crtc_state *pipe_config = |
11974 | to_intel_crtc_state(crtc_state); | |
6d3a1ce7 | 11975 | struct drm_atomic_state *state = crtc_state->state; |
4d20cd86 | 11976 | int ret; |
6d3a1ce7 ML |
11977 | bool mode_changed = needs_modeset(crtc_state); |
11978 | ||
11979 | if (mode_changed && !check_encoder_cloning(state, intel_crtc)) { | |
11980 | DRM_DEBUG_KMS("rejecting invalid cloning configuration\n"); | |
11981 | return -EINVAL; | |
11982 | } | |
11983 | ||
852eb00d | 11984 | if (mode_changed && !crtc_state->active) |
caed361d | 11985 | pipe_config->update_wm_post = true; |
eddfcbcd | 11986 | |
ad421372 ML |
11987 | if (mode_changed && crtc_state->enable && |
11988 | dev_priv->display.crtc_compute_clock && | |
8106ddbd | 11989 | !WARN_ON(pipe_config->shared_dpll)) { |
ad421372 ML |
11990 | ret = dev_priv->display.crtc_compute_clock(intel_crtc, |
11991 | pipe_config); | |
11992 | if (ret) | |
11993 | return ret; | |
11994 | } | |
11995 | ||
82cf435b LL |
11996 | if (crtc_state->color_mgmt_changed) { |
11997 | ret = intel_color_check(crtc, crtc_state); | |
11998 | if (ret) | |
11999 | return ret; | |
ed2eebbd LL |
12000 | |
12001 | /* | |
12002 | * Changing color management on Intel hardware is | |
12003 | * handled as part of planes update. | |
12004 | */ | |
12005 | crtc_state->planes_changed = true; | |
82cf435b LL |
12006 | } |
12007 | ||
e435d6e5 | 12008 | ret = 0; |
86c8bbbe | 12009 | if (dev_priv->display.compute_pipe_wm) { |
e3bddded | 12010 | ret = dev_priv->display.compute_pipe_wm(pipe_config); |
ed4a6a7c MR |
12011 | if (ret) { |
12012 | DRM_DEBUG_KMS("Target pipe watermarks are invalid\n"); | |
12013 | return ret; | |
12014 | } | |
12015 | } | |
12016 | ||
12017 | if (dev_priv->display.compute_intermediate_wm && | |
12018 | !to_intel_atomic_state(state)->skip_intermediate_wm) { | |
12019 | if (WARN_ON(!dev_priv->display.compute_pipe_wm)) | |
12020 | return 0; | |
12021 | ||
12022 | /* | |
12023 | * Calculate 'intermediate' watermarks that satisfy both the | |
12024 | * old state and the new state. We can program these | |
12025 | * immediately. | |
12026 | */ | |
12027 | ret = dev_priv->display.compute_intermediate_wm(crtc->dev, | |
12028 | intel_crtc, | |
12029 | pipe_config); | |
12030 | if (ret) { | |
12031 | DRM_DEBUG_KMS("No valid intermediate pipe watermarks are possible\n"); | |
86c8bbbe | 12032 | return ret; |
ed4a6a7c | 12033 | } |
9bd18728 VS |
12034 | } else if (dev_priv->display.compute_intermediate_wm) { |
12035 | if (HAS_PCH_SPLIT(dev_priv) && INTEL_GEN(dev_priv) < 9) | |
12036 | pipe_config->wm.intermediate = pipe_config->wm.optimal.ilk; | |
86c8bbbe MR |
12037 | } |
12038 | ||
e435d6e5 ML |
12039 | if (INTEL_INFO(dev)->gen >= 9) { |
12040 | if (mode_changed) | |
12041 | ret = skl_update_scaler_crtc(pipe_config); | |
12042 | ||
12043 | if (!ret) | |
12044 | ret = intel_atomic_setup_scalers(dev, intel_crtc, | |
12045 | pipe_config); | |
12046 | } | |
12047 | ||
12048 | return ret; | |
6d3a1ce7 ML |
12049 | } |
12050 | ||
65b38e0d | 12051 | static const struct drm_crtc_helper_funcs intel_helper_funcs = { |
f6e5b160 | 12052 | .mode_set_base_atomic = intel_pipe_set_base_atomic, |
ea2c67bb MR |
12053 | .atomic_begin = intel_begin_crtc_commit, |
12054 | .atomic_flush = intel_finish_crtc_commit, | |
6d3a1ce7 | 12055 | .atomic_check = intel_crtc_atomic_check, |
f6e5b160 CW |
12056 | }; |
12057 | ||
d29b2f9d ACO |
12058 | static void intel_modeset_update_connector_atomic_state(struct drm_device *dev) |
12059 | { | |
12060 | struct intel_connector *connector; | |
12061 | ||
12062 | for_each_intel_connector(dev, connector) { | |
8863dc7f DV |
12063 | if (connector->base.state->crtc) |
12064 | drm_connector_unreference(&connector->base); | |
12065 | ||
d29b2f9d ACO |
12066 | if (connector->base.encoder) { |
12067 | connector->base.state->best_encoder = | |
12068 | connector->base.encoder; | |
12069 | connector->base.state->crtc = | |
12070 | connector->base.encoder->crtc; | |
8863dc7f DV |
12071 | |
12072 | drm_connector_reference(&connector->base); | |
d29b2f9d ACO |
12073 | } else { |
12074 | connector->base.state->best_encoder = NULL; | |
12075 | connector->base.state->crtc = NULL; | |
12076 | } | |
12077 | } | |
12078 | } | |
12079 | ||
050f7aeb | 12080 | static void |
eba905b2 | 12081 | connected_sink_compute_bpp(struct intel_connector *connector, |
5cec258b | 12082 | struct intel_crtc_state *pipe_config) |
050f7aeb DV |
12083 | { |
12084 | int bpp = pipe_config->pipe_bpp; | |
12085 | ||
12086 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n", | |
12087 | connector->base.base.id, | |
c23cc417 | 12088 | connector->base.name); |
050f7aeb DV |
12089 | |
12090 | /* Don't use an invalid EDID bpc value */ | |
12091 | if (connector->base.display_info.bpc && | |
12092 | connector->base.display_info.bpc * 3 < bpp) { | |
12093 | DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n", | |
12094 | bpp, connector->base.display_info.bpc*3); | |
12095 | pipe_config->pipe_bpp = connector->base.display_info.bpc*3; | |
12096 | } | |
12097 | ||
013dd9e0 JN |
12098 | /* Clamp bpp to default limit on screens without EDID 1.4 */ |
12099 | if (connector->base.display_info.bpc == 0) { | |
12100 | int type = connector->base.connector_type; | |
12101 | int clamp_bpp = 24; | |
12102 | ||
12103 | /* Fall back to 18 bpp when DP sink capability is unknown. */ | |
12104 | if (type == DRM_MODE_CONNECTOR_DisplayPort || | |
12105 | type == DRM_MODE_CONNECTOR_eDP) | |
12106 | clamp_bpp = 18; | |
12107 | ||
12108 | if (bpp > clamp_bpp) { | |
12109 | DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of %d\n", | |
12110 | bpp, clamp_bpp); | |
12111 | pipe_config->pipe_bpp = clamp_bpp; | |
12112 | } | |
050f7aeb DV |
12113 | } |
12114 | } | |
12115 | ||
4e53c2e0 | 12116 | static int |
050f7aeb | 12117 | compute_baseline_pipe_bpp(struct intel_crtc *crtc, |
5cec258b | 12118 | struct intel_crtc_state *pipe_config) |
4e53c2e0 | 12119 | { |
050f7aeb | 12120 | struct drm_device *dev = crtc->base.dev; |
1486017f | 12121 | struct drm_atomic_state *state; |
da3ced29 ACO |
12122 | struct drm_connector *connector; |
12123 | struct drm_connector_state *connector_state; | |
1486017f | 12124 | int bpp, i; |
4e53c2e0 | 12125 | |
666a4537 | 12126 | if ((IS_G4X(dev) || IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))) |
4e53c2e0 | 12127 | bpp = 10*3; |
d328c9d7 DV |
12128 | else if (INTEL_INFO(dev)->gen >= 5) |
12129 | bpp = 12*3; | |
12130 | else | |
12131 | bpp = 8*3; | |
12132 | ||
4e53c2e0 | 12133 | |
4e53c2e0 DV |
12134 | pipe_config->pipe_bpp = bpp; |
12135 | ||
1486017f ACO |
12136 | state = pipe_config->base.state; |
12137 | ||
4e53c2e0 | 12138 | /* Clamp display bpp to EDID value */ |
da3ced29 ACO |
12139 | for_each_connector_in_state(state, connector, connector_state, i) { |
12140 | if (connector_state->crtc != &crtc->base) | |
4e53c2e0 DV |
12141 | continue; |
12142 | ||
da3ced29 ACO |
12143 | connected_sink_compute_bpp(to_intel_connector(connector), |
12144 | pipe_config); | |
4e53c2e0 DV |
12145 | } |
12146 | ||
12147 | return bpp; | |
12148 | } | |
12149 | ||
644db711 DV |
12150 | static void intel_dump_crtc_timings(const struct drm_display_mode *mode) |
12151 | { | |
12152 | DRM_DEBUG_KMS("crtc timings: %d %d %d %d %d %d %d %d %d, " | |
12153 | "type: 0x%x flags: 0x%x\n", | |
1342830c | 12154 | mode->crtc_clock, |
644db711 DV |
12155 | mode->crtc_hdisplay, mode->crtc_hsync_start, |
12156 | mode->crtc_hsync_end, mode->crtc_htotal, | |
12157 | mode->crtc_vdisplay, mode->crtc_vsync_start, | |
12158 | mode->crtc_vsync_end, mode->crtc_vtotal, mode->type, mode->flags); | |
12159 | } | |
12160 | ||
c0b03411 | 12161 | static void intel_dump_pipe_config(struct intel_crtc *crtc, |
5cec258b | 12162 | struct intel_crtc_state *pipe_config, |
c0b03411 DV |
12163 | const char *context) |
12164 | { | |
6a60cd87 CK |
12165 | struct drm_device *dev = crtc->base.dev; |
12166 | struct drm_plane *plane; | |
12167 | struct intel_plane *intel_plane; | |
12168 | struct intel_plane_state *state; | |
12169 | struct drm_framebuffer *fb; | |
12170 | ||
12171 | DRM_DEBUG_KMS("[CRTC:%d]%s config %p for pipe %c\n", crtc->base.base.id, | |
12172 | context, pipe_config, pipe_name(crtc->pipe)); | |
c0b03411 | 12173 | |
da205630 | 12174 | DRM_DEBUG_KMS("cpu_transcoder: %s\n", transcoder_name(pipe_config->cpu_transcoder)); |
c0b03411 DV |
12175 | DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n", |
12176 | pipe_config->pipe_bpp, pipe_config->dither); | |
12177 | DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n", | |
12178 | pipe_config->has_pch_encoder, | |
12179 | pipe_config->fdi_lanes, | |
12180 | pipe_config->fdi_m_n.gmch_m, pipe_config->fdi_m_n.gmch_n, | |
12181 | pipe_config->fdi_m_n.link_m, pipe_config->fdi_m_n.link_n, | |
12182 | pipe_config->fdi_m_n.tu); | |
90a6b7b0 | 12183 | DRM_DEBUG_KMS("dp: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n", |
eb14cb74 | 12184 | pipe_config->has_dp_encoder, |
90a6b7b0 | 12185 | pipe_config->lane_count, |
eb14cb74 VS |
12186 | pipe_config->dp_m_n.gmch_m, pipe_config->dp_m_n.gmch_n, |
12187 | pipe_config->dp_m_n.link_m, pipe_config->dp_m_n.link_n, | |
12188 | pipe_config->dp_m_n.tu); | |
b95af8be | 12189 | |
90a6b7b0 | 12190 | DRM_DEBUG_KMS("dp: %i, lanes: %i, gmch_m2: %u, gmch_n2: %u, link_m2: %u, link_n2: %u, tu2: %u\n", |
b95af8be | 12191 | pipe_config->has_dp_encoder, |
90a6b7b0 | 12192 | pipe_config->lane_count, |
b95af8be VK |
12193 | pipe_config->dp_m2_n2.gmch_m, |
12194 | pipe_config->dp_m2_n2.gmch_n, | |
12195 | pipe_config->dp_m2_n2.link_m, | |
12196 | pipe_config->dp_m2_n2.link_n, | |
12197 | pipe_config->dp_m2_n2.tu); | |
12198 | ||
55072d19 DV |
12199 | DRM_DEBUG_KMS("audio: %i, infoframes: %i\n", |
12200 | pipe_config->has_audio, | |
12201 | pipe_config->has_infoframe); | |
12202 | ||
c0b03411 | 12203 | DRM_DEBUG_KMS("requested mode:\n"); |
2d112de7 | 12204 | drm_mode_debug_printmodeline(&pipe_config->base.mode); |
c0b03411 | 12205 | DRM_DEBUG_KMS("adjusted mode:\n"); |
2d112de7 ACO |
12206 | drm_mode_debug_printmodeline(&pipe_config->base.adjusted_mode); |
12207 | intel_dump_crtc_timings(&pipe_config->base.adjusted_mode); | |
d71b8d4a | 12208 | DRM_DEBUG_KMS("port clock: %d\n", pipe_config->port_clock); |
37327abd VS |
12209 | DRM_DEBUG_KMS("pipe src size: %dx%d\n", |
12210 | pipe_config->pipe_src_w, pipe_config->pipe_src_h); | |
0ec463d3 TU |
12211 | DRM_DEBUG_KMS("num_scalers: %d, scaler_users: 0x%x, scaler_id: %d\n", |
12212 | crtc->num_scalers, | |
12213 | pipe_config->scaler_state.scaler_users, | |
12214 | pipe_config->scaler_state.scaler_id); | |
c0b03411 DV |
12215 | DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n", |
12216 | pipe_config->gmch_pfit.control, | |
12217 | pipe_config->gmch_pfit.pgm_ratios, | |
12218 | pipe_config->gmch_pfit.lvds_border_bits); | |
fd4daa9c | 12219 | DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n", |
c0b03411 | 12220 | pipe_config->pch_pfit.pos, |
fd4daa9c CW |
12221 | pipe_config->pch_pfit.size, |
12222 | pipe_config->pch_pfit.enabled ? "enabled" : "disabled"); | |
42db64ef | 12223 | DRM_DEBUG_KMS("ips: %i\n", pipe_config->ips_enabled); |
cf532bb2 | 12224 | DRM_DEBUG_KMS("double wide: %i\n", pipe_config->double_wide); |
6a60cd87 | 12225 | |
415ff0f6 | 12226 | if (IS_BROXTON(dev)) { |
05712c15 | 12227 | DRM_DEBUG_KMS("ddi_pll_sel: %u; dpll_hw_state: ebb0: 0x%x, ebb4: 0x%x," |
415ff0f6 | 12228 | "pll0: 0x%x, pll1: 0x%x, pll2: 0x%x, pll3: 0x%x, " |
c8453338 | 12229 | "pll6: 0x%x, pll8: 0x%x, pll9: 0x%x, pll10: 0x%x, pcsdw12: 0x%x\n", |
415ff0f6 TU |
12230 | pipe_config->ddi_pll_sel, |
12231 | pipe_config->dpll_hw_state.ebb0, | |
05712c15 | 12232 | pipe_config->dpll_hw_state.ebb4, |
415ff0f6 TU |
12233 | pipe_config->dpll_hw_state.pll0, |
12234 | pipe_config->dpll_hw_state.pll1, | |
12235 | pipe_config->dpll_hw_state.pll2, | |
12236 | pipe_config->dpll_hw_state.pll3, | |
12237 | pipe_config->dpll_hw_state.pll6, | |
12238 | pipe_config->dpll_hw_state.pll8, | |
05712c15 | 12239 | pipe_config->dpll_hw_state.pll9, |
c8453338 | 12240 | pipe_config->dpll_hw_state.pll10, |
415ff0f6 | 12241 | pipe_config->dpll_hw_state.pcsdw12); |
ef11bdb3 | 12242 | } else if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) { |
415ff0f6 TU |
12243 | DRM_DEBUG_KMS("ddi_pll_sel: %u; dpll_hw_state: " |
12244 | "ctrl1: 0x%x, cfgcr1: 0x%x, cfgcr2: 0x%x\n", | |
12245 | pipe_config->ddi_pll_sel, | |
12246 | pipe_config->dpll_hw_state.ctrl1, | |
12247 | pipe_config->dpll_hw_state.cfgcr1, | |
12248 | pipe_config->dpll_hw_state.cfgcr2); | |
12249 | } else if (HAS_DDI(dev)) { | |
1260f07e | 12250 | DRM_DEBUG_KMS("ddi_pll_sel: 0x%x; dpll_hw_state: wrpll: 0x%x spll: 0x%x\n", |
415ff0f6 | 12251 | pipe_config->ddi_pll_sel, |
00490c22 ML |
12252 | pipe_config->dpll_hw_state.wrpll, |
12253 | pipe_config->dpll_hw_state.spll); | |
415ff0f6 TU |
12254 | } else { |
12255 | DRM_DEBUG_KMS("dpll_hw_state: dpll: 0x%x, dpll_md: 0x%x, " | |
12256 | "fp0: 0x%x, fp1: 0x%x\n", | |
12257 | pipe_config->dpll_hw_state.dpll, | |
12258 | pipe_config->dpll_hw_state.dpll_md, | |
12259 | pipe_config->dpll_hw_state.fp0, | |
12260 | pipe_config->dpll_hw_state.fp1); | |
12261 | } | |
12262 | ||
6a60cd87 CK |
12263 | DRM_DEBUG_KMS("planes on this crtc\n"); |
12264 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) { | |
12265 | intel_plane = to_intel_plane(plane); | |
12266 | if (intel_plane->pipe != crtc->pipe) | |
12267 | continue; | |
12268 | ||
12269 | state = to_intel_plane_state(plane->state); | |
12270 | fb = state->base.fb; | |
12271 | if (!fb) { | |
12272 | DRM_DEBUG_KMS("%s PLANE:%d plane: %u.%u idx: %d " | |
12273 | "disabled, scaler_id = %d\n", | |
12274 | plane->type == DRM_PLANE_TYPE_CURSOR ? "CURSOR" : "STANDARD", | |
12275 | plane->base.id, intel_plane->pipe, | |
12276 | (crtc->base.primary == plane) ? 0 : intel_plane->plane + 1, | |
12277 | drm_plane_index(plane), state->scaler_id); | |
12278 | continue; | |
12279 | } | |
12280 | ||
12281 | DRM_DEBUG_KMS("%s PLANE:%d plane: %u.%u idx: %d enabled", | |
12282 | plane->type == DRM_PLANE_TYPE_CURSOR ? "CURSOR" : "STANDARD", | |
12283 | plane->base.id, intel_plane->pipe, | |
12284 | crtc->base.primary == plane ? 0 : intel_plane->plane + 1, | |
12285 | drm_plane_index(plane)); | |
12286 | DRM_DEBUG_KMS("\tFB:%d, fb = %ux%u format = 0x%x", | |
12287 | fb->base.id, fb->width, fb->height, fb->pixel_format); | |
12288 | DRM_DEBUG_KMS("\tscaler:%d src (%u, %u) %ux%u dst (%u, %u) %ux%u\n", | |
12289 | state->scaler_id, | |
12290 | state->src.x1 >> 16, state->src.y1 >> 16, | |
12291 | drm_rect_width(&state->src) >> 16, | |
12292 | drm_rect_height(&state->src) >> 16, | |
12293 | state->dst.x1, state->dst.y1, | |
12294 | drm_rect_width(&state->dst), drm_rect_height(&state->dst)); | |
12295 | } | |
c0b03411 DV |
12296 | } |
12297 | ||
5448a00d | 12298 | static bool check_digital_port_conflicts(struct drm_atomic_state *state) |
00f0b378 | 12299 | { |
5448a00d | 12300 | struct drm_device *dev = state->dev; |
da3ced29 | 12301 | struct drm_connector *connector; |
00f0b378 VS |
12302 | unsigned int used_ports = 0; |
12303 | ||
12304 | /* | |
12305 | * Walk the connector list instead of the encoder | |
12306 | * list to detect the problem on ddi platforms | |
12307 | * where there's just one encoder per digital port. | |
12308 | */ | |
0bff4858 VS |
12309 | drm_for_each_connector(connector, dev) { |
12310 | struct drm_connector_state *connector_state; | |
12311 | struct intel_encoder *encoder; | |
12312 | ||
12313 | connector_state = drm_atomic_get_existing_connector_state(state, connector); | |
12314 | if (!connector_state) | |
12315 | connector_state = connector->state; | |
12316 | ||
5448a00d | 12317 | if (!connector_state->best_encoder) |
00f0b378 VS |
12318 | continue; |
12319 | ||
5448a00d ACO |
12320 | encoder = to_intel_encoder(connector_state->best_encoder); |
12321 | ||
12322 | WARN_ON(!connector_state->crtc); | |
00f0b378 VS |
12323 | |
12324 | switch (encoder->type) { | |
12325 | unsigned int port_mask; | |
12326 | case INTEL_OUTPUT_UNKNOWN: | |
12327 | if (WARN_ON(!HAS_DDI(dev))) | |
12328 | break; | |
12329 | case INTEL_OUTPUT_DISPLAYPORT: | |
12330 | case INTEL_OUTPUT_HDMI: | |
12331 | case INTEL_OUTPUT_EDP: | |
12332 | port_mask = 1 << enc_to_dig_port(&encoder->base)->port; | |
12333 | ||
12334 | /* the same port mustn't appear more than once */ | |
12335 | if (used_ports & port_mask) | |
12336 | return false; | |
12337 | ||
12338 | used_ports |= port_mask; | |
12339 | default: | |
12340 | break; | |
12341 | } | |
12342 | } | |
12343 | ||
12344 | return true; | |
12345 | } | |
12346 | ||
83a57153 ACO |
12347 | static void |
12348 | clear_intel_crtc_state(struct intel_crtc_state *crtc_state) | |
12349 | { | |
12350 | struct drm_crtc_state tmp_state; | |
663a3640 | 12351 | struct intel_crtc_scaler_state scaler_state; |
4978cc93 | 12352 | struct intel_dpll_hw_state dpll_hw_state; |
8106ddbd | 12353 | struct intel_shared_dpll *shared_dpll; |
8504c74c | 12354 | uint32_t ddi_pll_sel; |
c4e2d043 | 12355 | bool force_thru; |
83a57153 | 12356 | |
7546a384 ACO |
12357 | /* FIXME: before the switch to atomic started, a new pipe_config was |
12358 | * kzalloc'd. Code that depends on any field being zero should be | |
12359 | * fixed, so that the crtc_state can be safely duplicated. For now, | |
12360 | * only fields that are know to not cause problems are preserved. */ | |
12361 | ||
83a57153 | 12362 | tmp_state = crtc_state->base; |
663a3640 | 12363 | scaler_state = crtc_state->scaler_state; |
4978cc93 ACO |
12364 | shared_dpll = crtc_state->shared_dpll; |
12365 | dpll_hw_state = crtc_state->dpll_hw_state; | |
8504c74c | 12366 | ddi_pll_sel = crtc_state->ddi_pll_sel; |
c4e2d043 | 12367 | force_thru = crtc_state->pch_pfit.force_thru; |
4978cc93 | 12368 | |
83a57153 | 12369 | memset(crtc_state, 0, sizeof *crtc_state); |
4978cc93 | 12370 | |
83a57153 | 12371 | crtc_state->base = tmp_state; |
663a3640 | 12372 | crtc_state->scaler_state = scaler_state; |
4978cc93 ACO |
12373 | crtc_state->shared_dpll = shared_dpll; |
12374 | crtc_state->dpll_hw_state = dpll_hw_state; | |
8504c74c | 12375 | crtc_state->ddi_pll_sel = ddi_pll_sel; |
c4e2d043 | 12376 | crtc_state->pch_pfit.force_thru = force_thru; |
83a57153 ACO |
12377 | } |
12378 | ||
548ee15b | 12379 | static int |
b8cecdf5 | 12380 | intel_modeset_pipe_config(struct drm_crtc *crtc, |
b359283a | 12381 | struct intel_crtc_state *pipe_config) |
ee7b9f93 | 12382 | { |
b359283a | 12383 | struct drm_atomic_state *state = pipe_config->base.state; |
7758a113 | 12384 | struct intel_encoder *encoder; |
da3ced29 | 12385 | struct drm_connector *connector; |
0b901879 | 12386 | struct drm_connector_state *connector_state; |
d328c9d7 | 12387 | int base_bpp, ret = -EINVAL; |
0b901879 | 12388 | int i; |
e29c22c0 | 12389 | bool retry = true; |
ee7b9f93 | 12390 | |
83a57153 | 12391 | clear_intel_crtc_state(pipe_config); |
7758a113 | 12392 | |
e143a21c DV |
12393 | pipe_config->cpu_transcoder = |
12394 | (enum transcoder) to_intel_crtc(crtc)->pipe; | |
b8cecdf5 | 12395 | |
2960bc9c ID |
12396 | /* |
12397 | * Sanitize sync polarity flags based on requested ones. If neither | |
12398 | * positive or negative polarity is requested, treat this as meaning | |
12399 | * negative polarity. | |
12400 | */ | |
2d112de7 | 12401 | if (!(pipe_config->base.adjusted_mode.flags & |
2960bc9c | 12402 | (DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NHSYNC))) |
2d112de7 | 12403 | pipe_config->base.adjusted_mode.flags |= DRM_MODE_FLAG_NHSYNC; |
2960bc9c | 12404 | |
2d112de7 | 12405 | if (!(pipe_config->base.adjusted_mode.flags & |
2960bc9c | 12406 | (DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_NVSYNC))) |
2d112de7 | 12407 | pipe_config->base.adjusted_mode.flags |= DRM_MODE_FLAG_NVSYNC; |
2960bc9c | 12408 | |
d328c9d7 DV |
12409 | base_bpp = compute_baseline_pipe_bpp(to_intel_crtc(crtc), |
12410 | pipe_config); | |
12411 | if (base_bpp < 0) | |
4e53c2e0 DV |
12412 | goto fail; |
12413 | ||
e41a56be VS |
12414 | /* |
12415 | * Determine the real pipe dimensions. Note that stereo modes can | |
12416 | * increase the actual pipe size due to the frame doubling and | |
12417 | * insertion of additional space for blanks between the frame. This | |
12418 | * is stored in the crtc timings. We use the requested mode to do this | |
12419 | * computation to clearly distinguish it from the adjusted mode, which | |
12420 | * can be changed by the connectors in the below retry loop. | |
12421 | */ | |
2d112de7 | 12422 | drm_crtc_get_hv_timing(&pipe_config->base.mode, |
ecb7e16b GP |
12423 | &pipe_config->pipe_src_w, |
12424 | &pipe_config->pipe_src_h); | |
e41a56be | 12425 | |
e29c22c0 | 12426 | encoder_retry: |
ef1b460d | 12427 | /* Ensure the port clock defaults are reset when retrying. */ |
ff9a6750 | 12428 | pipe_config->port_clock = 0; |
ef1b460d | 12429 | pipe_config->pixel_multiplier = 1; |
ff9a6750 | 12430 | |
135c81b8 | 12431 | /* Fill in default crtc timings, allow encoders to overwrite them. */ |
2d112de7 ACO |
12432 | drm_mode_set_crtcinfo(&pipe_config->base.adjusted_mode, |
12433 | CRTC_STEREO_DOUBLE); | |
135c81b8 | 12434 | |
7758a113 DV |
12435 | /* Pass our mode to the connectors and the CRTC to give them a chance to |
12436 | * adjust it according to limitations or connector properties, and also | |
12437 | * a chance to reject the mode entirely. | |
47f1c6c9 | 12438 | */ |
da3ced29 | 12439 | for_each_connector_in_state(state, connector, connector_state, i) { |
0b901879 | 12440 | if (connector_state->crtc != crtc) |
7758a113 | 12441 | continue; |
7ae89233 | 12442 | |
0b901879 ACO |
12443 | encoder = to_intel_encoder(connector_state->best_encoder); |
12444 | ||
efea6e8e DV |
12445 | if (!(encoder->compute_config(encoder, pipe_config))) { |
12446 | DRM_DEBUG_KMS("Encoder config failure\n"); | |
7758a113 DV |
12447 | goto fail; |
12448 | } | |
ee7b9f93 | 12449 | } |
47f1c6c9 | 12450 | |
ff9a6750 DV |
12451 | /* Set default port clock if not overwritten by the encoder. Needs to be |
12452 | * done afterwards in case the encoder adjusts the mode. */ | |
12453 | if (!pipe_config->port_clock) | |
2d112de7 | 12454 | pipe_config->port_clock = pipe_config->base.adjusted_mode.crtc_clock |
241bfc38 | 12455 | * pipe_config->pixel_multiplier; |
ff9a6750 | 12456 | |
a43f6e0f | 12457 | ret = intel_crtc_compute_config(to_intel_crtc(crtc), pipe_config); |
e29c22c0 | 12458 | if (ret < 0) { |
7758a113 DV |
12459 | DRM_DEBUG_KMS("CRTC fixup failed\n"); |
12460 | goto fail; | |
ee7b9f93 | 12461 | } |
e29c22c0 DV |
12462 | |
12463 | if (ret == RETRY) { | |
12464 | if (WARN(!retry, "loop in pipe configuration computation\n")) { | |
12465 | ret = -EINVAL; | |
12466 | goto fail; | |
12467 | } | |
12468 | ||
12469 | DRM_DEBUG_KMS("CRTC bw constrained, retrying\n"); | |
12470 | retry = false; | |
12471 | goto encoder_retry; | |
12472 | } | |
12473 | ||
e8fa4270 DV |
12474 | /* Dithering seems to not pass-through bits correctly when it should, so |
12475 | * only enable it on 6bpc panels. */ | |
12476 | pipe_config->dither = pipe_config->pipe_bpp == 6*3; | |
62f0ace5 | 12477 | DRM_DEBUG_KMS("hw max bpp: %i, pipe bpp: %i, dithering: %i\n", |
d328c9d7 | 12478 | base_bpp, pipe_config->pipe_bpp, pipe_config->dither); |
4e53c2e0 | 12479 | |
7758a113 | 12480 | fail: |
548ee15b | 12481 | return ret; |
ee7b9f93 | 12482 | } |
47f1c6c9 | 12483 | |
ea9d758d | 12484 | static void |
4740b0f2 | 12485 | intel_modeset_update_crtc_state(struct drm_atomic_state *state) |
ea9d758d | 12486 | { |
0a9ab303 ACO |
12487 | struct drm_crtc *crtc; |
12488 | struct drm_crtc_state *crtc_state; | |
8a75d157 | 12489 | int i; |
ea9d758d | 12490 | |
7668851f | 12491 | /* Double check state. */ |
8a75d157 | 12492 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
3cb480bc | 12493 | to_intel_crtc(crtc)->config = to_intel_crtc_state(crtc->state); |
fc467a22 ML |
12494 | |
12495 | /* Update hwmode for vblank functions */ | |
12496 | if (crtc->state->active) | |
12497 | crtc->hwmode = crtc->state->adjusted_mode; | |
12498 | else | |
12499 | crtc->hwmode.crtc_clock = 0; | |
61067a5e ML |
12500 | |
12501 | /* | |
12502 | * Update legacy state to satisfy fbc code. This can | |
12503 | * be removed when fbc uses the atomic state. | |
12504 | */ | |
12505 | if (drm_atomic_get_existing_plane_state(state, crtc->primary)) { | |
12506 | struct drm_plane_state *plane_state = crtc->primary->state; | |
12507 | ||
12508 | crtc->primary->fb = plane_state->fb; | |
12509 | crtc->x = plane_state->src_x >> 16; | |
12510 | crtc->y = plane_state->src_y >> 16; | |
12511 | } | |
ea9d758d | 12512 | } |
ea9d758d DV |
12513 | } |
12514 | ||
3bd26263 | 12515 | static bool intel_fuzzy_clock_check(int clock1, int clock2) |
f1f644dc | 12516 | { |
3bd26263 | 12517 | int diff; |
f1f644dc JB |
12518 | |
12519 | if (clock1 == clock2) | |
12520 | return true; | |
12521 | ||
12522 | if (!clock1 || !clock2) | |
12523 | return false; | |
12524 | ||
12525 | diff = abs(clock1 - clock2); | |
12526 | ||
12527 | if (((((diff + clock1 + clock2) * 100)) / (clock1 + clock2)) < 105) | |
12528 | return true; | |
12529 | ||
12530 | return false; | |
12531 | } | |
12532 | ||
25c5b266 DV |
12533 | #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \ |
12534 | list_for_each_entry((intel_crtc), \ | |
12535 | &(dev)->mode_config.crtc_list, \ | |
12536 | base.head) \ | |
95150bdf | 12537 | for_each_if (mask & (1 <<(intel_crtc)->pipe)) |
25c5b266 | 12538 | |
cfb23ed6 ML |
12539 | static bool |
12540 | intel_compare_m_n(unsigned int m, unsigned int n, | |
12541 | unsigned int m2, unsigned int n2, | |
12542 | bool exact) | |
12543 | { | |
12544 | if (m == m2 && n == n2) | |
12545 | return true; | |
12546 | ||
12547 | if (exact || !m || !n || !m2 || !n2) | |
12548 | return false; | |
12549 | ||
12550 | BUILD_BUG_ON(DATA_LINK_M_N_MASK > INT_MAX); | |
12551 | ||
31d10b57 ML |
12552 | if (n > n2) { |
12553 | while (n > n2) { | |
cfb23ed6 ML |
12554 | m2 <<= 1; |
12555 | n2 <<= 1; | |
12556 | } | |
31d10b57 ML |
12557 | } else if (n < n2) { |
12558 | while (n < n2) { | |
cfb23ed6 ML |
12559 | m <<= 1; |
12560 | n <<= 1; | |
12561 | } | |
12562 | } | |
12563 | ||
31d10b57 ML |
12564 | if (n != n2) |
12565 | return false; | |
12566 | ||
12567 | return intel_fuzzy_clock_check(m, m2); | |
cfb23ed6 ML |
12568 | } |
12569 | ||
12570 | static bool | |
12571 | intel_compare_link_m_n(const struct intel_link_m_n *m_n, | |
12572 | struct intel_link_m_n *m2_n2, | |
12573 | bool adjust) | |
12574 | { | |
12575 | if (m_n->tu == m2_n2->tu && | |
12576 | intel_compare_m_n(m_n->gmch_m, m_n->gmch_n, | |
12577 | m2_n2->gmch_m, m2_n2->gmch_n, !adjust) && | |
12578 | intel_compare_m_n(m_n->link_m, m_n->link_n, | |
12579 | m2_n2->link_m, m2_n2->link_n, !adjust)) { | |
12580 | if (adjust) | |
12581 | *m2_n2 = *m_n; | |
12582 | ||
12583 | return true; | |
12584 | } | |
12585 | ||
12586 | return false; | |
12587 | } | |
12588 | ||
0e8ffe1b | 12589 | static bool |
2fa2fe9a | 12590 | intel_pipe_config_compare(struct drm_device *dev, |
5cec258b | 12591 | struct intel_crtc_state *current_config, |
cfb23ed6 ML |
12592 | struct intel_crtc_state *pipe_config, |
12593 | bool adjust) | |
0e8ffe1b | 12594 | { |
cfb23ed6 ML |
12595 | bool ret = true; |
12596 | ||
12597 | #define INTEL_ERR_OR_DBG_KMS(fmt, ...) \ | |
12598 | do { \ | |
12599 | if (!adjust) \ | |
12600 | DRM_ERROR(fmt, ##__VA_ARGS__); \ | |
12601 | else \ | |
12602 | DRM_DEBUG_KMS(fmt, ##__VA_ARGS__); \ | |
12603 | } while (0) | |
12604 | ||
66e985c0 DV |
12605 | #define PIPE_CONF_CHECK_X(name) \ |
12606 | if (current_config->name != pipe_config->name) { \ | |
cfb23ed6 | 12607 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \ |
66e985c0 DV |
12608 | "(expected 0x%08x, found 0x%08x)\n", \ |
12609 | current_config->name, \ | |
12610 | pipe_config->name); \ | |
cfb23ed6 | 12611 | ret = false; \ |
66e985c0 DV |
12612 | } |
12613 | ||
08a24034 DV |
12614 | #define PIPE_CONF_CHECK_I(name) \ |
12615 | if (current_config->name != pipe_config->name) { \ | |
cfb23ed6 | 12616 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \ |
08a24034 DV |
12617 | "(expected %i, found %i)\n", \ |
12618 | current_config->name, \ | |
12619 | pipe_config->name); \ | |
cfb23ed6 ML |
12620 | ret = false; \ |
12621 | } | |
12622 | ||
8106ddbd ACO |
12623 | #define PIPE_CONF_CHECK_P(name) \ |
12624 | if (current_config->name != pipe_config->name) { \ | |
12625 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \ | |
12626 | "(expected %p, found %p)\n", \ | |
12627 | current_config->name, \ | |
12628 | pipe_config->name); \ | |
12629 | ret = false; \ | |
12630 | } | |
12631 | ||
cfb23ed6 ML |
12632 | #define PIPE_CONF_CHECK_M_N(name) \ |
12633 | if (!intel_compare_link_m_n(¤t_config->name, \ | |
12634 | &pipe_config->name,\ | |
12635 | adjust)) { \ | |
12636 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \ | |
12637 | "(expected tu %i gmch %i/%i link %i/%i, " \ | |
12638 | "found tu %i, gmch %i/%i link %i/%i)\n", \ | |
12639 | current_config->name.tu, \ | |
12640 | current_config->name.gmch_m, \ | |
12641 | current_config->name.gmch_n, \ | |
12642 | current_config->name.link_m, \ | |
12643 | current_config->name.link_n, \ | |
12644 | pipe_config->name.tu, \ | |
12645 | pipe_config->name.gmch_m, \ | |
12646 | pipe_config->name.gmch_n, \ | |
12647 | pipe_config->name.link_m, \ | |
12648 | pipe_config->name.link_n); \ | |
12649 | ret = false; \ | |
12650 | } | |
12651 | ||
55c561a7 DV |
12652 | /* This is required for BDW+ where there is only one set of registers for |
12653 | * switching between high and low RR. | |
12654 | * This macro can be used whenever a comparison has to be made between one | |
12655 | * hw state and multiple sw state variables. | |
12656 | */ | |
cfb23ed6 ML |
12657 | #define PIPE_CONF_CHECK_M_N_ALT(name, alt_name) \ |
12658 | if (!intel_compare_link_m_n(¤t_config->name, \ | |
12659 | &pipe_config->name, adjust) && \ | |
12660 | !intel_compare_link_m_n(¤t_config->alt_name, \ | |
12661 | &pipe_config->name, adjust)) { \ | |
12662 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \ | |
12663 | "(expected tu %i gmch %i/%i link %i/%i, " \ | |
12664 | "or tu %i gmch %i/%i link %i/%i, " \ | |
12665 | "found tu %i, gmch %i/%i link %i/%i)\n", \ | |
12666 | current_config->name.tu, \ | |
12667 | current_config->name.gmch_m, \ | |
12668 | current_config->name.gmch_n, \ | |
12669 | current_config->name.link_m, \ | |
12670 | current_config->name.link_n, \ | |
12671 | current_config->alt_name.tu, \ | |
12672 | current_config->alt_name.gmch_m, \ | |
12673 | current_config->alt_name.gmch_n, \ | |
12674 | current_config->alt_name.link_m, \ | |
12675 | current_config->alt_name.link_n, \ | |
12676 | pipe_config->name.tu, \ | |
12677 | pipe_config->name.gmch_m, \ | |
12678 | pipe_config->name.gmch_n, \ | |
12679 | pipe_config->name.link_m, \ | |
12680 | pipe_config->name.link_n); \ | |
12681 | ret = false; \ | |
88adfff1 DV |
12682 | } |
12683 | ||
1bd1bd80 DV |
12684 | #define PIPE_CONF_CHECK_FLAGS(name, mask) \ |
12685 | if ((current_config->name ^ pipe_config->name) & (mask)) { \ | |
cfb23ed6 | 12686 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name "(" #mask ") " \ |
1bd1bd80 DV |
12687 | "(expected %i, found %i)\n", \ |
12688 | current_config->name & (mask), \ | |
12689 | pipe_config->name & (mask)); \ | |
cfb23ed6 | 12690 | ret = false; \ |
1bd1bd80 DV |
12691 | } |
12692 | ||
5e550656 VS |
12693 | #define PIPE_CONF_CHECK_CLOCK_FUZZY(name) \ |
12694 | if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \ | |
cfb23ed6 | 12695 | INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \ |
5e550656 VS |
12696 | "(expected %i, found %i)\n", \ |
12697 | current_config->name, \ | |
12698 | pipe_config->name); \ | |
cfb23ed6 | 12699 | ret = false; \ |
5e550656 VS |
12700 | } |
12701 | ||
bb760063 DV |
12702 | #define PIPE_CONF_QUIRK(quirk) \ |
12703 | ((current_config->quirks | pipe_config->quirks) & (quirk)) | |
12704 | ||
eccb140b DV |
12705 | PIPE_CONF_CHECK_I(cpu_transcoder); |
12706 | ||
08a24034 DV |
12707 | PIPE_CONF_CHECK_I(has_pch_encoder); |
12708 | PIPE_CONF_CHECK_I(fdi_lanes); | |
cfb23ed6 | 12709 | PIPE_CONF_CHECK_M_N(fdi_m_n); |
08a24034 | 12710 | |
eb14cb74 | 12711 | PIPE_CONF_CHECK_I(has_dp_encoder); |
90a6b7b0 | 12712 | PIPE_CONF_CHECK_I(lane_count); |
b95af8be VK |
12713 | |
12714 | if (INTEL_INFO(dev)->gen < 8) { | |
cfb23ed6 ML |
12715 | PIPE_CONF_CHECK_M_N(dp_m_n); |
12716 | ||
cfb23ed6 ML |
12717 | if (current_config->has_drrs) |
12718 | PIPE_CONF_CHECK_M_N(dp_m2_n2); | |
12719 | } else | |
12720 | PIPE_CONF_CHECK_M_N_ALT(dp_m_n, dp_m2_n2); | |
eb14cb74 | 12721 | |
a65347ba JN |
12722 | PIPE_CONF_CHECK_I(has_dsi_encoder); |
12723 | ||
2d112de7 ACO |
12724 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hdisplay); |
12725 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_htotal); | |
12726 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hblank_start); | |
12727 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hblank_end); | |
12728 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hsync_start); | |
12729 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_hsync_end); | |
1bd1bd80 | 12730 | |
2d112de7 ACO |
12731 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vdisplay); |
12732 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vtotal); | |
12733 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vblank_start); | |
12734 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vblank_end); | |
12735 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vsync_start); | |
12736 | PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vsync_end); | |
1bd1bd80 | 12737 | |
c93f54cf | 12738 | PIPE_CONF_CHECK_I(pixel_multiplier); |
6897b4b5 | 12739 | PIPE_CONF_CHECK_I(has_hdmi_sink); |
b5a9fa09 | 12740 | if ((INTEL_INFO(dev)->gen < 8 && !IS_HASWELL(dev)) || |
666a4537 | 12741 | IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) |
b5a9fa09 | 12742 | PIPE_CONF_CHECK_I(limited_color_range); |
e43823ec | 12743 | PIPE_CONF_CHECK_I(has_infoframe); |
6c49f241 | 12744 | |
9ed109a7 DV |
12745 | PIPE_CONF_CHECK_I(has_audio); |
12746 | ||
2d112de7 | 12747 | PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags, |
1bd1bd80 DV |
12748 | DRM_MODE_FLAG_INTERLACE); |
12749 | ||
bb760063 | 12750 | if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS)) { |
2d112de7 | 12751 | PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags, |
bb760063 | 12752 | DRM_MODE_FLAG_PHSYNC); |
2d112de7 | 12753 | PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags, |
bb760063 | 12754 | DRM_MODE_FLAG_NHSYNC); |
2d112de7 | 12755 | PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags, |
bb760063 | 12756 | DRM_MODE_FLAG_PVSYNC); |
2d112de7 | 12757 | PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags, |
bb760063 DV |
12758 | DRM_MODE_FLAG_NVSYNC); |
12759 | } | |
045ac3b5 | 12760 | |
333b8ca8 | 12761 | PIPE_CONF_CHECK_X(gmch_pfit.control); |
e2ff2d4a DV |
12762 | /* pfit ratios are autocomputed by the hw on gen4+ */ |
12763 | if (INTEL_INFO(dev)->gen < 4) | |
7f7d8dd6 | 12764 | PIPE_CONF_CHECK_X(gmch_pfit.pgm_ratios); |
333b8ca8 | 12765 | PIPE_CONF_CHECK_X(gmch_pfit.lvds_border_bits); |
9953599b | 12766 | |
bfd16b2a ML |
12767 | if (!adjust) { |
12768 | PIPE_CONF_CHECK_I(pipe_src_w); | |
12769 | PIPE_CONF_CHECK_I(pipe_src_h); | |
12770 | ||
12771 | PIPE_CONF_CHECK_I(pch_pfit.enabled); | |
12772 | if (current_config->pch_pfit.enabled) { | |
12773 | PIPE_CONF_CHECK_X(pch_pfit.pos); | |
12774 | PIPE_CONF_CHECK_X(pch_pfit.size); | |
12775 | } | |
2fa2fe9a | 12776 | |
7aefe2b5 ML |
12777 | PIPE_CONF_CHECK_I(scaler_state.scaler_id); |
12778 | } | |
a1b2278e | 12779 | |
e59150dc JB |
12780 | /* BDW+ don't expose a synchronous way to read the state */ |
12781 | if (IS_HASWELL(dev)) | |
12782 | PIPE_CONF_CHECK_I(ips_enabled); | |
42db64ef | 12783 | |
282740f7 VS |
12784 | PIPE_CONF_CHECK_I(double_wide); |
12785 | ||
26804afd DV |
12786 | PIPE_CONF_CHECK_X(ddi_pll_sel); |
12787 | ||
8106ddbd | 12788 | PIPE_CONF_CHECK_P(shared_dpll); |
66e985c0 | 12789 | PIPE_CONF_CHECK_X(dpll_hw_state.dpll); |
8bcc2795 | 12790 | PIPE_CONF_CHECK_X(dpll_hw_state.dpll_md); |
66e985c0 DV |
12791 | PIPE_CONF_CHECK_X(dpll_hw_state.fp0); |
12792 | PIPE_CONF_CHECK_X(dpll_hw_state.fp1); | |
d452c5b6 | 12793 | PIPE_CONF_CHECK_X(dpll_hw_state.wrpll); |
00490c22 | 12794 | PIPE_CONF_CHECK_X(dpll_hw_state.spll); |
3f4cd19f DL |
12795 | PIPE_CONF_CHECK_X(dpll_hw_state.ctrl1); |
12796 | PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr1); | |
12797 | PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr2); | |
c0d43d62 | 12798 | |
47eacbab VS |
12799 | PIPE_CONF_CHECK_X(dsi_pll.ctrl); |
12800 | PIPE_CONF_CHECK_X(dsi_pll.div); | |
12801 | ||
42571aef VS |
12802 | if (IS_G4X(dev) || INTEL_INFO(dev)->gen >= 5) |
12803 | PIPE_CONF_CHECK_I(pipe_bpp); | |
12804 | ||
2d112de7 | 12805 | PIPE_CONF_CHECK_CLOCK_FUZZY(base.adjusted_mode.crtc_clock); |
a9a7e98a | 12806 | PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock); |
5e550656 | 12807 | |
66e985c0 | 12808 | #undef PIPE_CONF_CHECK_X |
08a24034 | 12809 | #undef PIPE_CONF_CHECK_I |
8106ddbd | 12810 | #undef PIPE_CONF_CHECK_P |
1bd1bd80 | 12811 | #undef PIPE_CONF_CHECK_FLAGS |
5e550656 | 12812 | #undef PIPE_CONF_CHECK_CLOCK_FUZZY |
bb760063 | 12813 | #undef PIPE_CONF_QUIRK |
cfb23ed6 | 12814 | #undef INTEL_ERR_OR_DBG_KMS |
88adfff1 | 12815 | |
cfb23ed6 | 12816 | return ret; |
0e8ffe1b DV |
12817 | } |
12818 | ||
e3b247da VS |
12819 | static void intel_pipe_config_sanity_check(struct drm_i915_private *dev_priv, |
12820 | const struct intel_crtc_state *pipe_config) | |
12821 | { | |
12822 | if (pipe_config->has_pch_encoder) { | |
21a727b3 | 12823 | int fdi_dotclock = intel_dotclock_calculate(intel_fdi_link_freq(dev_priv, pipe_config), |
e3b247da VS |
12824 | &pipe_config->fdi_m_n); |
12825 | int dotclock = pipe_config->base.adjusted_mode.crtc_clock; | |
12826 | ||
12827 | /* | |
12828 | * FDI already provided one idea for the dotclock. | |
12829 | * Yell if the encoder disagrees. | |
12830 | */ | |
12831 | WARN(!intel_fuzzy_clock_check(fdi_dotclock, dotclock), | |
12832 | "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n", | |
12833 | fdi_dotclock, dotclock); | |
12834 | } | |
12835 | } | |
12836 | ||
c0ead703 ML |
12837 | static void verify_wm_state(struct drm_crtc *crtc, |
12838 | struct drm_crtc_state *new_state) | |
08db6652 | 12839 | { |
e7c84544 | 12840 | struct drm_device *dev = crtc->dev; |
08db6652 DL |
12841 | struct drm_i915_private *dev_priv = dev->dev_private; |
12842 | struct skl_ddb_allocation hw_ddb, *sw_ddb; | |
e7c84544 ML |
12843 | struct skl_ddb_entry *hw_entry, *sw_entry; |
12844 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
12845 | const enum pipe pipe = intel_crtc->pipe; | |
08db6652 DL |
12846 | int plane; |
12847 | ||
e7c84544 | 12848 | if (INTEL_INFO(dev)->gen < 9 || !new_state->active) |
08db6652 DL |
12849 | return; |
12850 | ||
12851 | skl_ddb_get_hw_state(dev_priv, &hw_ddb); | |
12852 | sw_ddb = &dev_priv->wm.skl_hw.ddb; | |
12853 | ||
e7c84544 ML |
12854 | /* planes */ |
12855 | for_each_plane(dev_priv, pipe, plane) { | |
12856 | hw_entry = &hw_ddb.plane[pipe][plane]; | |
12857 | sw_entry = &sw_ddb->plane[pipe][plane]; | |
08db6652 | 12858 | |
e7c84544 | 12859 | if (skl_ddb_entry_equal(hw_entry, sw_entry)) |
08db6652 DL |
12860 | continue; |
12861 | ||
e7c84544 ML |
12862 | DRM_ERROR("mismatch in DDB state pipe %c plane %d " |
12863 | "(expected (%u,%u), found (%u,%u))\n", | |
12864 | pipe_name(pipe), plane + 1, | |
12865 | sw_entry->start, sw_entry->end, | |
12866 | hw_entry->start, hw_entry->end); | |
12867 | } | |
08db6652 | 12868 | |
e7c84544 ML |
12869 | /* cursor */ |
12870 | hw_entry = &hw_ddb.plane[pipe][PLANE_CURSOR]; | |
12871 | sw_entry = &sw_ddb->plane[pipe][PLANE_CURSOR]; | |
08db6652 | 12872 | |
e7c84544 | 12873 | if (!skl_ddb_entry_equal(hw_entry, sw_entry)) { |
08db6652 DL |
12874 | DRM_ERROR("mismatch in DDB state pipe %c cursor " |
12875 | "(expected (%u,%u), found (%u,%u))\n", | |
12876 | pipe_name(pipe), | |
12877 | sw_entry->start, sw_entry->end, | |
12878 | hw_entry->start, hw_entry->end); | |
12879 | } | |
12880 | } | |
12881 | ||
91d1b4bd | 12882 | static void |
c0ead703 | 12883 | verify_connector_state(struct drm_device *dev, struct drm_crtc *crtc) |
8af6cf88 | 12884 | { |
35dd3c64 | 12885 | struct drm_connector *connector; |
8af6cf88 | 12886 | |
e7c84544 | 12887 | drm_for_each_connector(connector, dev) { |
35dd3c64 ML |
12888 | struct drm_encoder *encoder = connector->encoder; |
12889 | struct drm_connector_state *state = connector->state; | |
ad3c558f | 12890 | |
e7c84544 ML |
12891 | if (state->crtc != crtc) |
12892 | continue; | |
12893 | ||
c0ead703 | 12894 | intel_connector_verify_state(to_intel_connector(connector)); |
8af6cf88 | 12895 | |
ad3c558f | 12896 | I915_STATE_WARN(state->best_encoder != encoder, |
35dd3c64 | 12897 | "connector's atomic encoder doesn't match legacy encoder\n"); |
8af6cf88 | 12898 | } |
91d1b4bd DV |
12899 | } |
12900 | ||
12901 | static void | |
c0ead703 | 12902 | verify_encoder_state(struct drm_device *dev) |
91d1b4bd DV |
12903 | { |
12904 | struct intel_encoder *encoder; | |
12905 | struct intel_connector *connector; | |
8af6cf88 | 12906 | |
b2784e15 | 12907 | for_each_intel_encoder(dev, encoder) { |
8af6cf88 | 12908 | bool enabled = false; |
4d20cd86 | 12909 | enum pipe pipe; |
8af6cf88 DV |
12910 | |
12911 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", | |
12912 | encoder->base.base.id, | |
8e329a03 | 12913 | encoder->base.name); |
8af6cf88 | 12914 | |
3a3371ff | 12915 | for_each_intel_connector(dev, connector) { |
4d20cd86 | 12916 | if (connector->base.state->best_encoder != &encoder->base) |
8af6cf88 DV |
12917 | continue; |
12918 | enabled = true; | |
ad3c558f ML |
12919 | |
12920 | I915_STATE_WARN(connector->base.state->crtc != | |
12921 | encoder->base.crtc, | |
12922 | "connector's crtc doesn't match encoder crtc\n"); | |
8af6cf88 | 12923 | } |
0e32b39c | 12924 | |
e2c719b7 | 12925 | I915_STATE_WARN(!!encoder->base.crtc != enabled, |
8af6cf88 DV |
12926 | "encoder's enabled state mismatch " |
12927 | "(expected %i, found %i)\n", | |
12928 | !!encoder->base.crtc, enabled); | |
7c60d198 ML |
12929 | |
12930 | if (!encoder->base.crtc) { | |
4d20cd86 | 12931 | bool active; |
7c60d198 | 12932 | |
4d20cd86 ML |
12933 | active = encoder->get_hw_state(encoder, &pipe); |
12934 | I915_STATE_WARN(active, | |
12935 | "encoder detached but still enabled on pipe %c.\n", | |
12936 | pipe_name(pipe)); | |
7c60d198 | 12937 | } |
8af6cf88 | 12938 | } |
91d1b4bd DV |
12939 | } |
12940 | ||
12941 | static void | |
c0ead703 ML |
12942 | verify_crtc_state(struct drm_crtc *crtc, |
12943 | struct drm_crtc_state *old_crtc_state, | |
12944 | struct drm_crtc_state *new_crtc_state) | |
91d1b4bd | 12945 | { |
e7c84544 | 12946 | struct drm_device *dev = crtc->dev; |
fbee40df | 12947 | struct drm_i915_private *dev_priv = dev->dev_private; |
91d1b4bd | 12948 | struct intel_encoder *encoder; |
e7c84544 ML |
12949 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
12950 | struct intel_crtc_state *pipe_config, *sw_config; | |
12951 | struct drm_atomic_state *old_state; | |
12952 | bool active; | |
8af6cf88 | 12953 | |
e7c84544 | 12954 | old_state = old_crtc_state->state; |
ec2dc6a0 | 12955 | __drm_atomic_helper_crtc_destroy_state(old_crtc_state); |
e7c84544 ML |
12956 | pipe_config = to_intel_crtc_state(old_crtc_state); |
12957 | memset(pipe_config, 0, sizeof(*pipe_config)); | |
12958 | pipe_config->base.crtc = crtc; | |
12959 | pipe_config->base.state = old_state; | |
045ac3b5 | 12960 | |
e7c84544 | 12961 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
8af6cf88 | 12962 | |
e7c84544 | 12963 | active = dev_priv->display.get_pipe_config(intel_crtc, pipe_config); |
8af6cf88 | 12964 | |
e7c84544 ML |
12965 | /* hw state is inconsistent with the pipe quirk */ |
12966 | if ((intel_crtc->pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) || | |
12967 | (intel_crtc->pipe == PIPE_B && dev_priv->quirks & QUIRK_PIPEB_FORCE)) | |
12968 | active = new_crtc_state->active; | |
d62cf62a | 12969 | |
e7c84544 ML |
12970 | I915_STATE_WARN(new_crtc_state->active != active, |
12971 | "crtc active state doesn't match with hw state " | |
12972 | "(expected %i, found %i)\n", new_crtc_state->active, active); | |
6c49f241 | 12973 | |
e7c84544 ML |
12974 | I915_STATE_WARN(intel_crtc->active != new_crtc_state->active, |
12975 | "transitional active state does not match atomic hw state " | |
12976 | "(expected %i, found %i)\n", new_crtc_state->active, intel_crtc->active); | |
0e8ffe1b | 12977 | |
e7c84544 ML |
12978 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
12979 | enum pipe pipe; | |
4d20cd86 | 12980 | |
e7c84544 ML |
12981 | active = encoder->get_hw_state(encoder, &pipe); |
12982 | I915_STATE_WARN(active != new_crtc_state->active, | |
12983 | "[ENCODER:%i] active %i with crtc active %i\n", | |
12984 | encoder->base.base.id, active, new_crtc_state->active); | |
4d20cd86 | 12985 | |
e7c84544 ML |
12986 | I915_STATE_WARN(active && intel_crtc->pipe != pipe, |
12987 | "Encoder connected to wrong pipe %c\n", | |
12988 | pipe_name(pipe)); | |
4d20cd86 | 12989 | |
e7c84544 ML |
12990 | if (active) |
12991 | encoder->get_config(encoder, pipe_config); | |
12992 | } | |
4d20cd86 | 12993 | |
e7c84544 ML |
12994 | if (!new_crtc_state->active) |
12995 | return; | |
53d9f4e9 | 12996 | |
e7c84544 | 12997 | intel_pipe_config_sanity_check(dev_priv, pipe_config); |
cfb23ed6 | 12998 | |
e7c84544 ML |
12999 | sw_config = to_intel_crtc_state(crtc->state); |
13000 | if (!intel_pipe_config_compare(dev, sw_config, | |
13001 | pipe_config, false)) { | |
13002 | I915_STATE_WARN(1, "pipe state doesn't match!\n"); | |
13003 | intel_dump_pipe_config(intel_crtc, pipe_config, | |
13004 | "[hw state]"); | |
13005 | intel_dump_pipe_config(intel_crtc, sw_config, | |
13006 | "[sw state]"); | |
8af6cf88 DV |
13007 | } |
13008 | } | |
13009 | ||
91d1b4bd | 13010 | static void |
c0ead703 ML |
13011 | verify_single_dpll_state(struct drm_i915_private *dev_priv, |
13012 | struct intel_shared_dpll *pll, | |
13013 | struct drm_crtc *crtc, | |
13014 | struct drm_crtc_state *new_state) | |
91d1b4bd | 13015 | { |
91d1b4bd | 13016 | struct intel_dpll_hw_state dpll_hw_state; |
e7c84544 ML |
13017 | unsigned crtc_mask; |
13018 | bool active; | |
5358901f | 13019 | |
e7c84544 | 13020 | memset(&dpll_hw_state, 0, sizeof(dpll_hw_state)); |
5358901f | 13021 | |
e7c84544 | 13022 | DRM_DEBUG_KMS("%s\n", pll->name); |
5358901f | 13023 | |
e7c84544 | 13024 | active = pll->funcs.get_hw_state(dev_priv, pll, &dpll_hw_state); |
5358901f | 13025 | |
e7c84544 ML |
13026 | if (!(pll->flags & INTEL_DPLL_ALWAYS_ON)) { |
13027 | I915_STATE_WARN(!pll->on && pll->active_mask, | |
5358901f | 13028 | "pll in active use but not on in sw tracking\n"); |
e7c84544 ML |
13029 | I915_STATE_WARN(pll->on && !pll->active_mask, |
13030 | "pll is on but not used by any active crtc\n"); | |
e2c719b7 | 13031 | I915_STATE_WARN(pll->on != active, |
5358901f DV |
13032 | "pll on state mismatch (expected %i, found %i)\n", |
13033 | pll->on, active); | |
e7c84544 | 13034 | } |
5358901f | 13035 | |
e7c84544 | 13036 | if (!crtc) { |
2dd66ebd | 13037 | I915_STATE_WARN(pll->active_mask & ~pll->config.crtc_mask, |
e7c84544 ML |
13038 | "more active pll users than references: %x vs %x\n", |
13039 | pll->active_mask, pll->config.crtc_mask); | |
5358901f | 13040 | |
e7c84544 ML |
13041 | return; |
13042 | } | |
13043 | ||
13044 | crtc_mask = 1 << drm_crtc_index(crtc); | |
13045 | ||
13046 | if (new_state->active) | |
13047 | I915_STATE_WARN(!(pll->active_mask & crtc_mask), | |
13048 | "pll active mismatch (expected pipe %c in active mask 0x%02x)\n", | |
13049 | pipe_name(drm_crtc_index(crtc)), pll->active_mask); | |
13050 | else | |
13051 | I915_STATE_WARN(pll->active_mask & crtc_mask, | |
13052 | "pll active mismatch (didn't expect pipe %c in active mask 0x%02x)\n", | |
13053 | pipe_name(drm_crtc_index(crtc)), pll->active_mask); | |
2dd66ebd | 13054 | |
e7c84544 ML |
13055 | I915_STATE_WARN(!(pll->config.crtc_mask & crtc_mask), |
13056 | "pll enabled crtcs mismatch (expected 0x%x in 0x%02x)\n", | |
13057 | crtc_mask, pll->config.crtc_mask); | |
66e985c0 | 13058 | |
e7c84544 ML |
13059 | I915_STATE_WARN(pll->on && memcmp(&pll->config.hw_state, |
13060 | &dpll_hw_state, | |
13061 | sizeof(dpll_hw_state)), | |
13062 | "pll hw state mismatch\n"); | |
13063 | } | |
13064 | ||
13065 | static void | |
c0ead703 ML |
13066 | verify_shared_dpll_state(struct drm_device *dev, struct drm_crtc *crtc, |
13067 | struct drm_crtc_state *old_crtc_state, | |
13068 | struct drm_crtc_state *new_crtc_state) | |
e7c84544 ML |
13069 | { |
13070 | struct drm_i915_private *dev_priv = dev->dev_private; | |
13071 | struct intel_crtc_state *old_state = to_intel_crtc_state(old_crtc_state); | |
13072 | struct intel_crtc_state *new_state = to_intel_crtc_state(new_crtc_state); | |
13073 | ||
13074 | if (new_state->shared_dpll) | |
c0ead703 | 13075 | verify_single_dpll_state(dev_priv, new_state->shared_dpll, crtc, new_crtc_state); |
e7c84544 ML |
13076 | |
13077 | if (old_state->shared_dpll && | |
13078 | old_state->shared_dpll != new_state->shared_dpll) { | |
13079 | unsigned crtc_mask = 1 << drm_crtc_index(crtc); | |
13080 | struct intel_shared_dpll *pll = old_state->shared_dpll; | |
66e985c0 | 13081 | |
e7c84544 ML |
13082 | I915_STATE_WARN(pll->active_mask & crtc_mask, |
13083 | "pll active mismatch (didn't expect pipe %c in active mask)\n", | |
13084 | pipe_name(drm_crtc_index(crtc))); | |
13085 | I915_STATE_WARN(pll->config.crtc_mask & crtc_mask, | |
13086 | "pll enabled crtcs mismatch (found %x in enabled mask)\n", | |
13087 | pipe_name(drm_crtc_index(crtc))); | |
5358901f | 13088 | } |
8af6cf88 DV |
13089 | } |
13090 | ||
ee165b1a | 13091 | static void |
c0ead703 | 13092 | intel_modeset_verify_crtc(struct drm_crtc *crtc, |
e7c84544 ML |
13093 | struct drm_crtc_state *old_state, |
13094 | struct drm_crtc_state *new_state) | |
91d1b4bd | 13095 | { |
e7c84544 ML |
13096 | if (!needs_modeset(new_state) && |
13097 | !to_intel_crtc_state(new_state)->update_pipe) | |
13098 | return; | |
13099 | ||
c0ead703 ML |
13100 | verify_wm_state(crtc, new_state); |
13101 | verify_connector_state(crtc->dev, crtc); | |
13102 | verify_crtc_state(crtc, old_state, new_state); | |
13103 | verify_shared_dpll_state(crtc->dev, crtc, old_state, new_state); | |
91d1b4bd DV |
13104 | } |
13105 | ||
e7c84544 | 13106 | static void |
c0ead703 | 13107 | verify_disabled_dpll_state(struct drm_device *dev) |
18442d08 | 13108 | { |
e7c84544 ML |
13109 | struct drm_i915_private *dev_priv = dev->dev_private; |
13110 | int i; | |
13111 | ||
13112 | for (i = 0; i < dev_priv->num_shared_dpll; i++) | |
c0ead703 | 13113 | verify_single_dpll_state(dev_priv, &dev_priv->shared_dplls[i], NULL, NULL); |
e7c84544 ML |
13114 | } |
13115 | ||
13116 | static void | |
c0ead703 | 13117 | intel_modeset_verify_disabled(struct drm_device *dev) |
e7c84544 | 13118 | { |
c0ead703 ML |
13119 | verify_encoder_state(dev); |
13120 | verify_connector_state(dev, NULL); | |
13121 | verify_disabled_dpll_state(dev); | |
18442d08 VS |
13122 | } |
13123 | ||
80715b2f VS |
13124 | static void update_scanline_offset(struct intel_crtc *crtc) |
13125 | { | |
13126 | struct drm_device *dev = crtc->base.dev; | |
13127 | ||
13128 | /* | |
13129 | * The scanline counter increments at the leading edge of hsync. | |
13130 | * | |
13131 | * On most platforms it starts counting from vtotal-1 on the | |
13132 | * first active line. That means the scanline counter value is | |
13133 | * always one less than what we would expect. Ie. just after | |
13134 | * start of vblank, which also occurs at start of hsync (on the | |
13135 | * last active line), the scanline counter will read vblank_start-1. | |
13136 | * | |
13137 | * On gen2 the scanline counter starts counting from 1 instead | |
13138 | * of vtotal-1, so we have to subtract one (or rather add vtotal-1 | |
13139 | * to keep the value positive), instead of adding one. | |
13140 | * | |
13141 | * On HSW+ the behaviour of the scanline counter depends on the output | |
13142 | * type. For DP ports it behaves like most other platforms, but on HDMI | |
13143 | * there's an extra 1 line difference. So we need to add two instead of | |
13144 | * one to the value. | |
13145 | */ | |
13146 | if (IS_GEN2(dev)) { | |
124abe07 | 13147 | const struct drm_display_mode *adjusted_mode = &crtc->config->base.adjusted_mode; |
80715b2f VS |
13148 | int vtotal; |
13149 | ||
124abe07 VS |
13150 | vtotal = adjusted_mode->crtc_vtotal; |
13151 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) | |
80715b2f VS |
13152 | vtotal /= 2; |
13153 | ||
13154 | crtc->scanline_offset = vtotal - 1; | |
13155 | } else if (HAS_DDI(dev) && | |
409ee761 | 13156 | intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) { |
80715b2f VS |
13157 | crtc->scanline_offset = 2; |
13158 | } else | |
13159 | crtc->scanline_offset = 1; | |
13160 | } | |
13161 | ||
ad421372 | 13162 | static void intel_modeset_clear_plls(struct drm_atomic_state *state) |
ed6739ef | 13163 | { |
225da59b | 13164 | struct drm_device *dev = state->dev; |
ed6739ef | 13165 | struct drm_i915_private *dev_priv = to_i915(dev); |
ad421372 | 13166 | struct intel_shared_dpll_config *shared_dpll = NULL; |
0a9ab303 ACO |
13167 | struct drm_crtc *crtc; |
13168 | struct drm_crtc_state *crtc_state; | |
0a9ab303 | 13169 | int i; |
ed6739ef ACO |
13170 | |
13171 | if (!dev_priv->display.crtc_compute_clock) | |
ad421372 | 13172 | return; |
ed6739ef | 13173 | |
0a9ab303 | 13174 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
fb1a38a9 | 13175 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
8106ddbd ACO |
13176 | struct intel_shared_dpll *old_dpll = |
13177 | to_intel_crtc_state(crtc->state)->shared_dpll; | |
0a9ab303 | 13178 | |
fb1a38a9 | 13179 | if (!needs_modeset(crtc_state)) |
225da59b ACO |
13180 | continue; |
13181 | ||
8106ddbd | 13182 | to_intel_crtc_state(crtc_state)->shared_dpll = NULL; |
fb1a38a9 | 13183 | |
8106ddbd | 13184 | if (!old_dpll) |
fb1a38a9 | 13185 | continue; |
0a9ab303 | 13186 | |
ad421372 ML |
13187 | if (!shared_dpll) |
13188 | shared_dpll = intel_atomic_get_shared_dpll_state(state); | |
ed6739ef | 13189 | |
8106ddbd | 13190 | intel_shared_dpll_config_put(shared_dpll, old_dpll, intel_crtc); |
ad421372 | 13191 | } |
ed6739ef ACO |
13192 | } |
13193 | ||
99d736a2 ML |
13194 | /* |
13195 | * This implements the workaround described in the "notes" section of the mode | |
13196 | * set sequence documentation. When going from no pipes or single pipe to | |
13197 | * multiple pipes, and planes are enabled after the pipe, we need to wait at | |
13198 | * least 2 vblanks on the first pipe before enabling planes on the second pipe. | |
13199 | */ | |
13200 | static int haswell_mode_set_planes_workaround(struct drm_atomic_state *state) | |
13201 | { | |
13202 | struct drm_crtc_state *crtc_state; | |
13203 | struct intel_crtc *intel_crtc; | |
13204 | struct drm_crtc *crtc; | |
13205 | struct intel_crtc_state *first_crtc_state = NULL; | |
13206 | struct intel_crtc_state *other_crtc_state = NULL; | |
13207 | enum pipe first_pipe = INVALID_PIPE, enabled_pipe = INVALID_PIPE; | |
13208 | int i; | |
13209 | ||
13210 | /* look at all crtc's that are going to be enabled in during modeset */ | |
13211 | for_each_crtc_in_state(state, crtc, crtc_state, i) { | |
13212 | intel_crtc = to_intel_crtc(crtc); | |
13213 | ||
13214 | if (!crtc_state->active || !needs_modeset(crtc_state)) | |
13215 | continue; | |
13216 | ||
13217 | if (first_crtc_state) { | |
13218 | other_crtc_state = to_intel_crtc_state(crtc_state); | |
13219 | break; | |
13220 | } else { | |
13221 | first_crtc_state = to_intel_crtc_state(crtc_state); | |
13222 | first_pipe = intel_crtc->pipe; | |
13223 | } | |
13224 | } | |
13225 | ||
13226 | /* No workaround needed? */ | |
13227 | if (!first_crtc_state) | |
13228 | return 0; | |
13229 | ||
13230 | /* w/a possibly needed, check how many crtc's are already enabled. */ | |
13231 | for_each_intel_crtc(state->dev, intel_crtc) { | |
13232 | struct intel_crtc_state *pipe_config; | |
13233 | ||
13234 | pipe_config = intel_atomic_get_crtc_state(state, intel_crtc); | |
13235 | if (IS_ERR(pipe_config)) | |
13236 | return PTR_ERR(pipe_config); | |
13237 | ||
13238 | pipe_config->hsw_workaround_pipe = INVALID_PIPE; | |
13239 | ||
13240 | if (!pipe_config->base.active || | |
13241 | needs_modeset(&pipe_config->base)) | |
13242 | continue; | |
13243 | ||
13244 | /* 2 or more enabled crtcs means no need for w/a */ | |
13245 | if (enabled_pipe != INVALID_PIPE) | |
13246 | return 0; | |
13247 | ||
13248 | enabled_pipe = intel_crtc->pipe; | |
13249 | } | |
13250 | ||
13251 | if (enabled_pipe != INVALID_PIPE) | |
13252 | first_crtc_state->hsw_workaround_pipe = enabled_pipe; | |
13253 | else if (other_crtc_state) | |
13254 | other_crtc_state->hsw_workaround_pipe = first_pipe; | |
13255 | ||
13256 | return 0; | |
13257 | } | |
13258 | ||
27c329ed ML |
13259 | static int intel_modeset_all_pipes(struct drm_atomic_state *state) |
13260 | { | |
13261 | struct drm_crtc *crtc; | |
13262 | struct drm_crtc_state *crtc_state; | |
13263 | int ret = 0; | |
13264 | ||
13265 | /* add all active pipes to the state */ | |
13266 | for_each_crtc(state->dev, crtc) { | |
13267 | crtc_state = drm_atomic_get_crtc_state(state, crtc); | |
13268 | if (IS_ERR(crtc_state)) | |
13269 | return PTR_ERR(crtc_state); | |
13270 | ||
13271 | if (!crtc_state->active || needs_modeset(crtc_state)) | |
13272 | continue; | |
13273 | ||
13274 | crtc_state->mode_changed = true; | |
13275 | ||
13276 | ret = drm_atomic_add_affected_connectors(state, crtc); | |
13277 | if (ret) | |
13278 | break; | |
13279 | ||
13280 | ret = drm_atomic_add_affected_planes(state, crtc); | |
13281 | if (ret) | |
13282 | break; | |
13283 | } | |
13284 | ||
13285 | return ret; | |
13286 | } | |
13287 | ||
c347a676 | 13288 | static int intel_modeset_checks(struct drm_atomic_state *state) |
054518dd | 13289 | { |
565602d7 ML |
13290 | struct intel_atomic_state *intel_state = to_intel_atomic_state(state); |
13291 | struct drm_i915_private *dev_priv = state->dev->dev_private; | |
13292 | struct drm_crtc *crtc; | |
13293 | struct drm_crtc_state *crtc_state; | |
13294 | int ret = 0, i; | |
054518dd | 13295 | |
b359283a ML |
13296 | if (!check_digital_port_conflicts(state)) { |
13297 | DRM_DEBUG_KMS("rejecting conflicting digital port configuration\n"); | |
13298 | return -EINVAL; | |
13299 | } | |
13300 | ||
565602d7 ML |
13301 | intel_state->modeset = true; |
13302 | intel_state->active_crtcs = dev_priv->active_crtcs; | |
13303 | ||
13304 | for_each_crtc_in_state(state, crtc, crtc_state, i) { | |
13305 | if (crtc_state->active) | |
13306 | intel_state->active_crtcs |= 1 << i; | |
13307 | else | |
13308 | intel_state->active_crtcs &= ~(1 << i); | |
13309 | } | |
13310 | ||
054518dd ACO |
13311 | /* |
13312 | * See if the config requires any additional preparation, e.g. | |
13313 | * to adjust global state with pipes off. We need to do this | |
13314 | * here so we can get the modeset_pipe updated config for the new | |
13315 | * mode set on this crtc. For other crtcs we need to use the | |
13316 | * adjusted_mode bits in the crtc directly. | |
13317 | */ | |
27c329ed | 13318 | if (dev_priv->display.modeset_calc_cdclk) { |
27c329ed ML |
13319 | ret = dev_priv->display.modeset_calc_cdclk(state); |
13320 | ||
1a617b77 | 13321 | if (!ret && intel_state->dev_cdclk != dev_priv->cdclk_freq) |
27c329ed ML |
13322 | ret = intel_modeset_all_pipes(state); |
13323 | ||
13324 | if (ret < 0) | |
054518dd | 13325 | return ret; |
e8788cbc ML |
13326 | |
13327 | DRM_DEBUG_KMS("New cdclk calculated to be atomic %u, actual %u\n", | |
13328 | intel_state->cdclk, intel_state->dev_cdclk); | |
27c329ed | 13329 | } else |
1a617b77 | 13330 | to_intel_atomic_state(state)->cdclk = dev_priv->atomic_cdclk_freq; |
054518dd | 13331 | |
ad421372 | 13332 | intel_modeset_clear_plls(state); |
054518dd | 13333 | |
565602d7 | 13334 | if (IS_HASWELL(dev_priv)) |
ad421372 | 13335 | return haswell_mode_set_planes_workaround(state); |
99d736a2 | 13336 | |
ad421372 | 13337 | return 0; |
c347a676 ACO |
13338 | } |
13339 | ||
aa363136 MR |
13340 | /* |
13341 | * Handle calculation of various watermark data at the end of the atomic check | |
13342 | * phase. The code here should be run after the per-crtc and per-plane 'check' | |
13343 | * handlers to ensure that all derived state has been updated. | |
13344 | */ | |
13345 | static void calc_watermark_data(struct drm_atomic_state *state) | |
13346 | { | |
13347 | struct drm_device *dev = state->dev; | |
13348 | struct intel_atomic_state *intel_state = to_intel_atomic_state(state); | |
13349 | struct drm_crtc *crtc; | |
13350 | struct drm_crtc_state *cstate; | |
13351 | struct drm_plane *plane; | |
13352 | struct drm_plane_state *pstate; | |
13353 | ||
13354 | /* | |
13355 | * Calculate watermark configuration details now that derived | |
13356 | * plane/crtc state is all properly updated. | |
13357 | */ | |
13358 | drm_for_each_crtc(crtc, dev) { | |
13359 | cstate = drm_atomic_get_existing_crtc_state(state, crtc) ?: | |
13360 | crtc->state; | |
13361 | ||
13362 | if (cstate->active) | |
13363 | intel_state->wm_config.num_pipes_active++; | |
13364 | } | |
13365 | drm_for_each_legacy_plane(plane, dev) { | |
13366 | pstate = drm_atomic_get_existing_plane_state(state, plane) ?: | |
13367 | plane->state; | |
13368 | ||
13369 | if (!to_intel_plane_state(pstate)->visible) | |
13370 | continue; | |
13371 | ||
13372 | intel_state->wm_config.sprites_enabled = true; | |
13373 | if (pstate->crtc_w != pstate->src_w >> 16 || | |
13374 | pstate->crtc_h != pstate->src_h >> 16) | |
13375 | intel_state->wm_config.sprites_scaled = true; | |
13376 | } | |
13377 | } | |
13378 | ||
74c090b1 ML |
13379 | /** |
13380 | * intel_atomic_check - validate state object | |
13381 | * @dev: drm device | |
13382 | * @state: state to validate | |
13383 | */ | |
13384 | static int intel_atomic_check(struct drm_device *dev, | |
13385 | struct drm_atomic_state *state) | |
c347a676 | 13386 | { |
dd8b3bdb | 13387 | struct drm_i915_private *dev_priv = to_i915(dev); |
aa363136 | 13388 | struct intel_atomic_state *intel_state = to_intel_atomic_state(state); |
c347a676 ACO |
13389 | struct drm_crtc *crtc; |
13390 | struct drm_crtc_state *crtc_state; | |
13391 | int ret, i; | |
61333b60 | 13392 | bool any_ms = false; |
c347a676 | 13393 | |
74c090b1 | 13394 | ret = drm_atomic_helper_check_modeset(dev, state); |
054518dd ACO |
13395 | if (ret) |
13396 | return ret; | |
13397 | ||
c347a676 | 13398 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
cfb23ed6 ML |
13399 | struct intel_crtc_state *pipe_config = |
13400 | to_intel_crtc_state(crtc_state); | |
1ed51de9 DV |
13401 | |
13402 | /* Catch I915_MODE_FLAG_INHERITED */ | |
13403 | if (crtc_state->mode.private_flags != crtc->state->mode.private_flags) | |
13404 | crtc_state->mode_changed = true; | |
cfb23ed6 | 13405 | |
61333b60 ML |
13406 | if (!crtc_state->enable) { |
13407 | if (needs_modeset(crtc_state)) | |
13408 | any_ms = true; | |
c347a676 | 13409 | continue; |
61333b60 | 13410 | } |
c347a676 | 13411 | |
26495481 | 13412 | if (!needs_modeset(crtc_state)) |
cfb23ed6 ML |
13413 | continue; |
13414 | ||
26495481 DV |
13415 | /* FIXME: For only active_changed we shouldn't need to do any |
13416 | * state recomputation at all. */ | |
13417 | ||
1ed51de9 DV |
13418 | ret = drm_atomic_add_affected_connectors(state, crtc); |
13419 | if (ret) | |
13420 | return ret; | |
b359283a | 13421 | |
cfb23ed6 | 13422 | ret = intel_modeset_pipe_config(crtc, pipe_config); |
c347a676 ACO |
13423 | if (ret) |
13424 | return ret; | |
13425 | ||
73831236 | 13426 | if (i915.fastboot && |
dd8b3bdb | 13427 | intel_pipe_config_compare(dev, |
cfb23ed6 | 13428 | to_intel_crtc_state(crtc->state), |
1ed51de9 | 13429 | pipe_config, true)) { |
26495481 | 13430 | crtc_state->mode_changed = false; |
bfd16b2a | 13431 | to_intel_crtc_state(crtc_state)->update_pipe = true; |
26495481 DV |
13432 | } |
13433 | ||
13434 | if (needs_modeset(crtc_state)) { | |
13435 | any_ms = true; | |
cfb23ed6 ML |
13436 | |
13437 | ret = drm_atomic_add_affected_planes(state, crtc); | |
13438 | if (ret) | |
13439 | return ret; | |
13440 | } | |
61333b60 | 13441 | |
26495481 DV |
13442 | intel_dump_pipe_config(to_intel_crtc(crtc), pipe_config, |
13443 | needs_modeset(crtc_state) ? | |
13444 | "[modeset]" : "[fastset]"); | |
c347a676 ACO |
13445 | } |
13446 | ||
61333b60 ML |
13447 | if (any_ms) { |
13448 | ret = intel_modeset_checks(state); | |
13449 | ||
13450 | if (ret) | |
13451 | return ret; | |
27c329ed | 13452 | } else |
dd8b3bdb | 13453 | intel_state->cdclk = dev_priv->cdclk_freq; |
76305b1a | 13454 | |
dd8b3bdb | 13455 | ret = drm_atomic_helper_check_planes(dev, state); |
aa363136 MR |
13456 | if (ret) |
13457 | return ret; | |
13458 | ||
f51be2e0 | 13459 | intel_fbc_choose_crtc(dev_priv, state); |
aa363136 MR |
13460 | calc_watermark_data(state); |
13461 | ||
13462 | return 0; | |
054518dd ACO |
13463 | } |
13464 | ||
5008e874 ML |
13465 | static int intel_atomic_prepare_commit(struct drm_device *dev, |
13466 | struct drm_atomic_state *state, | |
81072bfd | 13467 | bool nonblock) |
5008e874 | 13468 | { |
7580d774 ML |
13469 | struct drm_i915_private *dev_priv = dev->dev_private; |
13470 | struct drm_plane_state *plane_state; | |
5008e874 | 13471 | struct drm_crtc_state *crtc_state; |
7580d774 | 13472 | struct drm_plane *plane; |
5008e874 ML |
13473 | struct drm_crtc *crtc; |
13474 | int i, ret; | |
13475 | ||
81072bfd ML |
13476 | if (nonblock) { |
13477 | DRM_DEBUG_KMS("i915 does not yet support nonblocking commit\n"); | |
5008e874 ML |
13478 | return -EINVAL; |
13479 | } | |
13480 | ||
13481 | for_each_crtc_in_state(state, crtc, crtc_state, i) { | |
7ac7d19f CW |
13482 | if (state->legacy_cursor_update) |
13483 | continue; | |
13484 | ||
5008e874 ML |
13485 | ret = intel_crtc_wait_for_pending_flips(crtc); |
13486 | if (ret) | |
13487 | return ret; | |
7580d774 ML |
13488 | |
13489 | if (atomic_read(&to_intel_crtc(crtc)->unpin_work_count) >= 2) | |
13490 | flush_workqueue(dev_priv->wq); | |
5008e874 ML |
13491 | } |
13492 | ||
f935675f ML |
13493 | ret = mutex_lock_interruptible(&dev->struct_mutex); |
13494 | if (ret) | |
13495 | return ret; | |
13496 | ||
5008e874 | 13497 | ret = drm_atomic_helper_prepare_planes(dev, state); |
f7e5838b | 13498 | mutex_unlock(&dev->struct_mutex); |
7580d774 | 13499 | |
21daaeee | 13500 | if (!ret && !nonblock) { |
7580d774 ML |
13501 | for_each_plane_in_state(state, plane, plane_state, i) { |
13502 | struct intel_plane_state *intel_plane_state = | |
13503 | to_intel_plane_state(plane_state); | |
13504 | ||
13505 | if (!intel_plane_state->wait_req) | |
13506 | continue; | |
13507 | ||
13508 | ret = __i915_wait_request(intel_plane_state->wait_req, | |
299259a3 | 13509 | true, NULL, NULL); |
f7e5838b | 13510 | if (ret) { |
f4457ae7 CW |
13511 | /* Any hang should be swallowed by the wait */ |
13512 | WARN_ON(ret == -EIO); | |
f7e5838b CW |
13513 | mutex_lock(&dev->struct_mutex); |
13514 | drm_atomic_helper_cleanup_planes(dev, state); | |
13515 | mutex_unlock(&dev->struct_mutex); | |
7580d774 | 13516 | break; |
f7e5838b | 13517 | } |
7580d774 | 13518 | } |
7580d774 | 13519 | } |
5008e874 ML |
13520 | |
13521 | return ret; | |
13522 | } | |
13523 | ||
e8861675 ML |
13524 | static void intel_atomic_wait_for_vblanks(struct drm_device *dev, |
13525 | struct drm_i915_private *dev_priv, | |
13526 | unsigned crtc_mask) | |
13527 | { | |
13528 | unsigned last_vblank_count[I915_MAX_PIPES]; | |
13529 | enum pipe pipe; | |
13530 | int ret; | |
13531 | ||
13532 | if (!crtc_mask) | |
13533 | return; | |
13534 | ||
13535 | for_each_pipe(dev_priv, pipe) { | |
13536 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
13537 | ||
13538 | if (!((1 << pipe) & crtc_mask)) | |
13539 | continue; | |
13540 | ||
13541 | ret = drm_crtc_vblank_get(crtc); | |
13542 | if (WARN_ON(ret != 0)) { | |
13543 | crtc_mask &= ~(1 << pipe); | |
13544 | continue; | |
13545 | } | |
13546 | ||
13547 | last_vblank_count[pipe] = drm_crtc_vblank_count(crtc); | |
13548 | } | |
13549 | ||
13550 | for_each_pipe(dev_priv, pipe) { | |
13551 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
13552 | long lret; | |
13553 | ||
13554 | if (!((1 << pipe) & crtc_mask)) | |
13555 | continue; | |
13556 | ||
13557 | lret = wait_event_timeout(dev->vblank[pipe].queue, | |
13558 | last_vblank_count[pipe] != | |
13559 | drm_crtc_vblank_count(crtc), | |
13560 | msecs_to_jiffies(50)); | |
13561 | ||
8a8dae26 | 13562 | WARN(!lret, "pipe %c vblank wait timed out\n", pipe_name(pipe)); |
e8861675 ML |
13563 | |
13564 | drm_crtc_vblank_put(crtc); | |
13565 | } | |
13566 | } | |
13567 | ||
13568 | static bool needs_vblank_wait(struct intel_crtc_state *crtc_state) | |
13569 | { | |
13570 | /* fb updated, need to unpin old fb */ | |
13571 | if (crtc_state->fb_changed) | |
13572 | return true; | |
13573 | ||
13574 | /* wm changes, need vblank before final wm's */ | |
caed361d | 13575 | if (crtc_state->update_wm_post) |
e8861675 ML |
13576 | return true; |
13577 | ||
13578 | /* | |
13579 | * cxsr is re-enabled after vblank. | |
caed361d | 13580 | * This is already handled by crtc_state->update_wm_post, |
e8861675 ML |
13581 | * but added for clarity. |
13582 | */ | |
13583 | if (crtc_state->disable_cxsr) | |
13584 | return true; | |
13585 | ||
13586 | return false; | |
13587 | } | |
13588 | ||
74c090b1 ML |
13589 | /** |
13590 | * intel_atomic_commit - commit validated state object | |
13591 | * @dev: DRM device | |
13592 | * @state: the top-level driver state object | |
81072bfd | 13593 | * @nonblock: nonblocking commit |
74c090b1 ML |
13594 | * |
13595 | * This function commits a top-level state object that has been validated | |
13596 | * with drm_atomic_helper_check(). | |
13597 | * | |
13598 | * FIXME: Atomic modeset support for i915 is not yet complete. At the moment | |
13599 | * we can only handle plane-related operations and do not yet support | |
81072bfd | 13600 | * nonblocking commit. |
74c090b1 ML |
13601 | * |
13602 | * RETURNS | |
13603 | * Zero for success or -errno. | |
13604 | */ | |
13605 | static int intel_atomic_commit(struct drm_device *dev, | |
13606 | struct drm_atomic_state *state, | |
81072bfd | 13607 | bool nonblock) |
a6778b3c | 13608 | { |
565602d7 | 13609 | struct intel_atomic_state *intel_state = to_intel_atomic_state(state); |
fbee40df | 13610 | struct drm_i915_private *dev_priv = dev->dev_private; |
29ceb0e6 | 13611 | struct drm_crtc_state *old_crtc_state; |
7580d774 | 13612 | struct drm_crtc *crtc; |
ed4a6a7c | 13613 | struct intel_crtc_state *intel_cstate; |
565602d7 ML |
13614 | int ret = 0, i; |
13615 | bool hw_check = intel_state->modeset; | |
33c8df89 | 13616 | unsigned long put_domains[I915_MAX_PIPES] = {}; |
e8861675 | 13617 | unsigned crtc_vblank_mask = 0; |
a6778b3c | 13618 | |
81072bfd | 13619 | ret = intel_atomic_prepare_commit(dev, state, nonblock); |
7580d774 ML |
13620 | if (ret) { |
13621 | DRM_DEBUG_ATOMIC("Preparing state failed with %i\n", ret); | |
d4afb8cc | 13622 | return ret; |
7580d774 | 13623 | } |
d4afb8cc | 13624 | |
1c5e19f8 | 13625 | drm_atomic_helper_swap_state(dev, state); |
a1475e77 ML |
13626 | dev_priv->wm.config = intel_state->wm_config; |
13627 | intel_shared_dpll_commit(state); | |
1c5e19f8 | 13628 | |
565602d7 ML |
13629 | if (intel_state->modeset) { |
13630 | memcpy(dev_priv->min_pixclk, intel_state->min_pixclk, | |
13631 | sizeof(intel_state->min_pixclk)); | |
13632 | dev_priv->active_crtcs = intel_state->active_crtcs; | |
1a617b77 | 13633 | dev_priv->atomic_cdclk_freq = intel_state->cdclk; |
33c8df89 ML |
13634 | |
13635 | intel_display_power_get(dev_priv, POWER_DOMAIN_MODESET); | |
565602d7 ML |
13636 | } |
13637 | ||
29ceb0e6 | 13638 | for_each_crtc_in_state(state, crtc, old_crtc_state, i) { |
a539205a ML |
13639 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
13640 | ||
33c8df89 ML |
13641 | if (needs_modeset(crtc->state) || |
13642 | to_intel_crtc_state(crtc->state)->update_pipe) { | |
13643 | hw_check = true; | |
13644 | ||
13645 | put_domains[to_intel_crtc(crtc)->pipe] = | |
13646 | modeset_get_crtc_power_domains(crtc, | |
13647 | to_intel_crtc_state(crtc->state)); | |
13648 | } | |
13649 | ||
61333b60 ML |
13650 | if (!needs_modeset(crtc->state)) |
13651 | continue; | |
13652 | ||
29ceb0e6 | 13653 | intel_pre_plane_update(to_intel_crtc_state(old_crtc_state)); |
460da916 | 13654 | |
29ceb0e6 VS |
13655 | if (old_crtc_state->active) { |
13656 | intel_crtc_disable_planes(crtc, old_crtc_state->plane_mask); | |
a539205a | 13657 | dev_priv->display.crtc_disable(crtc); |
eddfcbcd | 13658 | intel_crtc->active = false; |
58f9c0bc | 13659 | intel_fbc_disable(intel_crtc); |
eddfcbcd | 13660 | intel_disable_shared_dpll(intel_crtc); |
9bbc8258 VS |
13661 | |
13662 | /* | |
13663 | * Underruns don't always raise | |
13664 | * interrupts, so check manually. | |
13665 | */ | |
13666 | intel_check_cpu_fifo_underruns(dev_priv); | |
13667 | intel_check_pch_fifo_underruns(dev_priv); | |
b9001114 ML |
13668 | |
13669 | if (!crtc->state->active) | |
13670 | intel_update_watermarks(crtc); | |
a539205a | 13671 | } |
b8cecdf5 | 13672 | } |
7758a113 | 13673 | |
ea9d758d DV |
13674 | /* Only after disabling all output pipelines that will be changed can we |
13675 | * update the the output configuration. */ | |
4740b0f2 | 13676 | intel_modeset_update_crtc_state(state); |
f6e5b160 | 13677 | |
565602d7 | 13678 | if (intel_state->modeset) { |
4740b0f2 | 13679 | drm_atomic_helper_update_legacy_modeset_state(state->dev, state); |
33c8df89 ML |
13680 | |
13681 | if (dev_priv->display.modeset_commit_cdclk && | |
13682 | intel_state->dev_cdclk != dev_priv->cdclk_freq) | |
13683 | dev_priv->display.modeset_commit_cdclk(state); | |
f6d1973d | 13684 | |
c0ead703 | 13685 | intel_modeset_verify_disabled(dev); |
4740b0f2 | 13686 | } |
47fab737 | 13687 | |
a6778b3c | 13688 | /* Now enable the clocks, plane, pipe, and connectors that we set up. */ |
29ceb0e6 | 13689 | for_each_crtc_in_state(state, crtc, old_crtc_state, i) { |
f6ac4b2a ML |
13690 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
13691 | bool modeset = needs_modeset(crtc->state); | |
e8861675 ML |
13692 | struct intel_crtc_state *pipe_config = |
13693 | to_intel_crtc_state(crtc->state); | |
13694 | bool update_pipe = !modeset && pipe_config->update_pipe; | |
9f836f90 | 13695 | |
f6ac4b2a | 13696 | if (modeset && crtc->state->active) { |
a539205a ML |
13697 | update_scanline_offset(to_intel_crtc(crtc)); |
13698 | dev_priv->display.crtc_enable(crtc); | |
13699 | } | |
80715b2f | 13700 | |
f6ac4b2a | 13701 | if (!modeset) |
29ceb0e6 | 13702 | intel_pre_plane_update(to_intel_crtc_state(old_crtc_state)); |
f6ac4b2a | 13703 | |
31ae71fc ML |
13704 | if (crtc->state->active && |
13705 | drm_atomic_get_existing_plane_state(state, crtc->primary)) | |
49227c4a PZ |
13706 | intel_fbc_enable(intel_crtc); |
13707 | ||
6173ee28 ML |
13708 | if (crtc->state->active && |
13709 | (crtc->state->planes_changed || update_pipe)) | |
29ceb0e6 | 13710 | drm_atomic_helper_commit_planes_on_crtc(old_crtc_state); |
bfd16b2a | 13711 | |
e8861675 ML |
13712 | if (pipe_config->base.active && needs_vblank_wait(pipe_config)) |
13713 | crtc_vblank_mask |= 1 << i; | |
80715b2f | 13714 | } |
a6778b3c | 13715 | |
a6778b3c | 13716 | /* FIXME: add subpixel order */ |
83a57153 | 13717 | |
e8861675 ML |
13718 | if (!state->legacy_cursor_update) |
13719 | intel_atomic_wait_for_vblanks(dev, dev_priv, crtc_vblank_mask); | |
f935675f | 13720 | |
ed4a6a7c MR |
13721 | /* |
13722 | * Now that the vblank has passed, we can go ahead and program the | |
13723 | * optimal watermarks on platforms that need two-step watermark | |
13724 | * programming. | |
13725 | * | |
13726 | * TODO: Move this (and other cleanup) to an async worker eventually. | |
13727 | */ | |
29ceb0e6 | 13728 | for_each_crtc_in_state(state, crtc, old_crtc_state, i) { |
ed4a6a7c MR |
13729 | intel_cstate = to_intel_crtc_state(crtc->state); |
13730 | ||
13731 | if (dev_priv->display.optimize_watermarks) | |
13732 | dev_priv->display.optimize_watermarks(intel_cstate); | |
13733 | } | |
13734 | ||
177246a8 MR |
13735 | for_each_crtc_in_state(state, crtc, old_crtc_state, i) { |
13736 | intel_post_plane_update(to_intel_crtc_state(old_crtc_state)); | |
e8861675 | 13737 | |
33c8df89 ML |
13738 | if (put_domains[i]) |
13739 | modeset_put_power_domains(dev_priv, put_domains[i]); | |
f6d1973d | 13740 | |
c0ead703 | 13741 | intel_modeset_verify_crtc(crtc, old_crtc_state, crtc->state); |
33c8df89 ML |
13742 | } |
13743 | ||
13744 | if (intel_state->modeset) | |
13745 | intel_display_power_put(dev_priv, POWER_DOMAIN_MODESET); | |
13746 | ||
f935675f | 13747 | mutex_lock(&dev->struct_mutex); |
d4afb8cc | 13748 | drm_atomic_helper_cleanup_planes(dev, state); |
f935675f | 13749 | mutex_unlock(&dev->struct_mutex); |
2bfb4627 | 13750 | |
ee165b1a | 13751 | drm_atomic_state_free(state); |
f30da187 | 13752 | |
75714940 MK |
13753 | /* As one of the primary mmio accessors, KMS has a high likelihood |
13754 | * of triggering bugs in unclaimed access. After we finish | |
13755 | * modesetting, see if an error has been flagged, and if so | |
13756 | * enable debugging for the next modeset - and hope we catch | |
13757 | * the culprit. | |
13758 | * | |
13759 | * XXX note that we assume display power is on at this point. | |
13760 | * This might hold true now but we need to add pm helper to check | |
13761 | * unclaimed only when the hardware is on, as atomic commits | |
13762 | * can happen also when the device is completely off. | |
13763 | */ | |
13764 | intel_uncore_arm_unclaimed_mmio_detection(dev_priv); | |
13765 | ||
74c090b1 | 13766 | return 0; |
7f27126e JB |
13767 | } |
13768 | ||
c0c36b94 CW |
13769 | void intel_crtc_restore_mode(struct drm_crtc *crtc) |
13770 | { | |
83a57153 ACO |
13771 | struct drm_device *dev = crtc->dev; |
13772 | struct drm_atomic_state *state; | |
e694eb02 | 13773 | struct drm_crtc_state *crtc_state; |
2bfb4627 | 13774 | int ret; |
83a57153 ACO |
13775 | |
13776 | state = drm_atomic_state_alloc(dev); | |
13777 | if (!state) { | |
e694eb02 | 13778 | DRM_DEBUG_KMS("[CRTC:%d] crtc restore failed, out of memory", |
83a57153 ACO |
13779 | crtc->base.id); |
13780 | return; | |
13781 | } | |
13782 | ||
e694eb02 | 13783 | state->acquire_ctx = drm_modeset_legacy_acquire_ctx(crtc); |
83a57153 | 13784 | |
e694eb02 ML |
13785 | retry: |
13786 | crtc_state = drm_atomic_get_crtc_state(state, crtc); | |
13787 | ret = PTR_ERR_OR_ZERO(crtc_state); | |
13788 | if (!ret) { | |
13789 | if (!crtc_state->active) | |
13790 | goto out; | |
83a57153 | 13791 | |
e694eb02 | 13792 | crtc_state->mode_changed = true; |
74c090b1 | 13793 | ret = drm_atomic_commit(state); |
83a57153 ACO |
13794 | } |
13795 | ||
e694eb02 ML |
13796 | if (ret == -EDEADLK) { |
13797 | drm_atomic_state_clear(state); | |
13798 | drm_modeset_backoff(state->acquire_ctx); | |
13799 | goto retry; | |
4ed9fb37 | 13800 | } |
4be07317 | 13801 | |
2bfb4627 | 13802 | if (ret) |
e694eb02 | 13803 | out: |
2bfb4627 | 13804 | drm_atomic_state_free(state); |
c0c36b94 CW |
13805 | } |
13806 | ||
25c5b266 DV |
13807 | #undef for_each_intel_crtc_masked |
13808 | ||
f6e5b160 | 13809 | static const struct drm_crtc_funcs intel_crtc_funcs = { |
82cf435b | 13810 | .gamma_set = drm_atomic_helper_legacy_gamma_set, |
74c090b1 | 13811 | .set_config = drm_atomic_helper_set_config, |
82cf435b | 13812 | .set_property = drm_atomic_helper_crtc_set_property, |
f6e5b160 CW |
13813 | .destroy = intel_crtc_destroy, |
13814 | .page_flip = intel_crtc_page_flip, | |
1356837e MR |
13815 | .atomic_duplicate_state = intel_crtc_duplicate_state, |
13816 | .atomic_destroy_state = intel_crtc_destroy_state, | |
f6e5b160 CW |
13817 | }; |
13818 | ||
6beb8c23 MR |
13819 | /** |
13820 | * intel_prepare_plane_fb - Prepare fb for usage on plane | |
13821 | * @plane: drm plane to prepare for | |
13822 | * @fb: framebuffer to prepare for presentation | |
13823 | * | |
13824 | * Prepares a framebuffer for usage on a display plane. Generally this | |
13825 | * involves pinning the underlying object and updating the frontbuffer tracking | |
13826 | * bits. Some older platforms need special physical address handling for | |
13827 | * cursor planes. | |
13828 | * | |
f935675f ML |
13829 | * Must be called with struct_mutex held. |
13830 | * | |
6beb8c23 MR |
13831 | * Returns 0 on success, negative error code on failure. |
13832 | */ | |
13833 | int | |
13834 | intel_prepare_plane_fb(struct drm_plane *plane, | |
d136dfee | 13835 | const struct drm_plane_state *new_state) |
465c120c MR |
13836 | { |
13837 | struct drm_device *dev = plane->dev; | |
844f9111 | 13838 | struct drm_framebuffer *fb = new_state->fb; |
6beb8c23 | 13839 | struct intel_plane *intel_plane = to_intel_plane(plane); |
6beb8c23 | 13840 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
1ee49399 | 13841 | struct drm_i915_gem_object *old_obj = intel_fb_obj(plane->state->fb); |
6beb8c23 | 13842 | int ret = 0; |
465c120c | 13843 | |
1ee49399 | 13844 | if (!obj && !old_obj) |
465c120c MR |
13845 | return 0; |
13846 | ||
5008e874 ML |
13847 | if (old_obj) { |
13848 | struct drm_crtc_state *crtc_state = | |
13849 | drm_atomic_get_existing_crtc_state(new_state->state, plane->state->crtc); | |
13850 | ||
13851 | /* Big Hammer, we also need to ensure that any pending | |
13852 | * MI_WAIT_FOR_EVENT inside a user batch buffer on the | |
13853 | * current scanout is retired before unpinning the old | |
13854 | * framebuffer. Note that we rely on userspace rendering | |
13855 | * into the buffer attached to the pipe they are waiting | |
13856 | * on. If not, userspace generates a GPU hang with IPEHR | |
13857 | * point to the MI_WAIT_FOR_EVENT. | |
13858 | * | |
13859 | * This should only fail upon a hung GPU, in which case we | |
13860 | * can safely continue. | |
13861 | */ | |
13862 | if (needs_modeset(crtc_state)) | |
13863 | ret = i915_gem_object_wait_rendering(old_obj, true); | |
f4457ae7 CW |
13864 | if (ret) { |
13865 | /* GPU hangs should have been swallowed by the wait */ | |
13866 | WARN_ON(ret == -EIO); | |
f935675f | 13867 | return ret; |
f4457ae7 | 13868 | } |
5008e874 ML |
13869 | } |
13870 | ||
3c28ff22 AG |
13871 | /* For framebuffer backed by dmabuf, wait for fence */ |
13872 | if (obj && obj->base.dma_buf) { | |
bcf8be27 ML |
13873 | long lret; |
13874 | ||
13875 | lret = reservation_object_wait_timeout_rcu(obj->base.dma_buf->resv, | |
13876 | false, true, | |
13877 | MAX_SCHEDULE_TIMEOUT); | |
13878 | if (lret == -ERESTARTSYS) | |
13879 | return lret; | |
3c28ff22 | 13880 | |
bcf8be27 | 13881 | WARN(lret < 0, "waiting returns %li\n", lret); |
3c28ff22 AG |
13882 | } |
13883 | ||
1ee49399 ML |
13884 | if (!obj) { |
13885 | ret = 0; | |
13886 | } else if (plane->type == DRM_PLANE_TYPE_CURSOR && | |
6beb8c23 MR |
13887 | INTEL_INFO(dev)->cursor_needs_physical) { |
13888 | int align = IS_I830(dev) ? 16 * 1024 : 256; | |
13889 | ret = i915_gem_object_attach_phys(obj, align); | |
13890 | if (ret) | |
13891 | DRM_DEBUG_KMS("failed to attach phys object\n"); | |
13892 | } else { | |
3465c580 | 13893 | ret = intel_pin_and_fence_fb_obj(fb, new_state->rotation); |
6beb8c23 | 13894 | } |
465c120c | 13895 | |
7580d774 ML |
13896 | if (ret == 0) { |
13897 | if (obj) { | |
13898 | struct intel_plane_state *plane_state = | |
13899 | to_intel_plane_state(new_state); | |
13900 | ||
13901 | i915_gem_request_assign(&plane_state->wait_req, | |
13902 | obj->last_write_req); | |
13903 | } | |
13904 | ||
a9ff8714 | 13905 | i915_gem_track_fb(old_obj, obj, intel_plane->frontbuffer_bit); |
7580d774 | 13906 | } |
fdd508a6 | 13907 | |
6beb8c23 MR |
13908 | return ret; |
13909 | } | |
13910 | ||
38f3ce3a MR |
13911 | /** |
13912 | * intel_cleanup_plane_fb - Cleans up an fb after plane use | |
13913 | * @plane: drm plane to clean up for | |
13914 | * @fb: old framebuffer that was on plane | |
13915 | * | |
13916 | * Cleans up a framebuffer that has just been removed from a plane. | |
f935675f ML |
13917 | * |
13918 | * Must be called with struct_mutex held. | |
38f3ce3a MR |
13919 | */ |
13920 | void | |
13921 | intel_cleanup_plane_fb(struct drm_plane *plane, | |
d136dfee | 13922 | const struct drm_plane_state *old_state) |
38f3ce3a MR |
13923 | { |
13924 | struct drm_device *dev = plane->dev; | |
1ee49399 | 13925 | struct intel_plane *intel_plane = to_intel_plane(plane); |
7580d774 | 13926 | struct intel_plane_state *old_intel_state; |
1ee49399 ML |
13927 | struct drm_i915_gem_object *old_obj = intel_fb_obj(old_state->fb); |
13928 | struct drm_i915_gem_object *obj = intel_fb_obj(plane->state->fb); | |
38f3ce3a | 13929 | |
7580d774 ML |
13930 | old_intel_state = to_intel_plane_state(old_state); |
13931 | ||
1ee49399 | 13932 | if (!obj && !old_obj) |
38f3ce3a MR |
13933 | return; |
13934 | ||
1ee49399 ML |
13935 | if (old_obj && (plane->type != DRM_PLANE_TYPE_CURSOR || |
13936 | !INTEL_INFO(dev)->cursor_needs_physical)) | |
3465c580 | 13937 | intel_unpin_fb_obj(old_state->fb, old_state->rotation); |
1ee49399 ML |
13938 | |
13939 | /* prepare_fb aborted? */ | |
13940 | if ((old_obj && (old_obj->frontbuffer_bits & intel_plane->frontbuffer_bit)) || | |
13941 | (obj && !(obj->frontbuffer_bits & intel_plane->frontbuffer_bit))) | |
13942 | i915_gem_track_fb(old_obj, obj, intel_plane->frontbuffer_bit); | |
7580d774 ML |
13943 | |
13944 | i915_gem_request_assign(&old_intel_state->wait_req, NULL); | |
465c120c MR |
13945 | } |
13946 | ||
6156a456 CK |
13947 | int |
13948 | skl_max_scale(struct intel_crtc *intel_crtc, struct intel_crtc_state *crtc_state) | |
13949 | { | |
13950 | int max_scale; | |
13951 | struct drm_device *dev; | |
13952 | struct drm_i915_private *dev_priv; | |
13953 | int crtc_clock, cdclk; | |
13954 | ||
bf8a0af0 | 13955 | if (!intel_crtc || !crtc_state->base.enable) |
6156a456 CK |
13956 | return DRM_PLANE_HELPER_NO_SCALING; |
13957 | ||
13958 | dev = intel_crtc->base.dev; | |
13959 | dev_priv = dev->dev_private; | |
13960 | crtc_clock = crtc_state->base.adjusted_mode.crtc_clock; | |
27c329ed | 13961 | cdclk = to_intel_atomic_state(crtc_state->base.state)->cdclk; |
6156a456 | 13962 | |
54bf1ce6 | 13963 | if (WARN_ON_ONCE(!crtc_clock || cdclk < crtc_clock)) |
6156a456 CK |
13964 | return DRM_PLANE_HELPER_NO_SCALING; |
13965 | ||
13966 | /* | |
13967 | * skl max scale is lower of: | |
13968 | * close to 3 but not 3, -1 is for that purpose | |
13969 | * or | |
13970 | * cdclk/crtc_clock | |
13971 | */ | |
13972 | max_scale = min((1 << 16) * 3 - 1, (1 << 8) * ((cdclk << 8) / crtc_clock)); | |
13973 | ||
13974 | return max_scale; | |
13975 | } | |
13976 | ||
465c120c | 13977 | static int |
3c692a41 | 13978 | intel_check_primary_plane(struct drm_plane *plane, |
061e4b8d | 13979 | struct intel_crtc_state *crtc_state, |
3c692a41 GP |
13980 | struct intel_plane_state *state) |
13981 | { | |
2b875c22 MR |
13982 | struct drm_crtc *crtc = state->base.crtc; |
13983 | struct drm_framebuffer *fb = state->base.fb; | |
6156a456 | 13984 | int min_scale = DRM_PLANE_HELPER_NO_SCALING; |
061e4b8d ML |
13985 | int max_scale = DRM_PLANE_HELPER_NO_SCALING; |
13986 | bool can_position = false; | |
465c120c | 13987 | |
693bdc28 VS |
13988 | if (INTEL_INFO(plane->dev)->gen >= 9) { |
13989 | /* use scaler when colorkey is not required */ | |
13990 | if (state->ckey.flags == I915_SET_COLORKEY_NONE) { | |
13991 | min_scale = 1; | |
13992 | max_scale = skl_max_scale(to_intel_crtc(crtc), crtc_state); | |
13993 | } | |
d8106366 | 13994 | can_position = true; |
6156a456 | 13995 | } |
d8106366 | 13996 | |
061e4b8d ML |
13997 | return drm_plane_helper_check_update(plane, crtc, fb, &state->src, |
13998 | &state->dst, &state->clip, | |
da20eabd ML |
13999 | min_scale, max_scale, |
14000 | can_position, true, | |
14001 | &state->visible); | |
14af293f GP |
14002 | } |
14003 | ||
613d2b27 ML |
14004 | static void intel_begin_crtc_commit(struct drm_crtc *crtc, |
14005 | struct drm_crtc_state *old_crtc_state) | |
3c692a41 | 14006 | { |
32b7eeec | 14007 | struct drm_device *dev = crtc->dev; |
3c692a41 | 14008 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
bfd16b2a ML |
14009 | struct intel_crtc_state *old_intel_state = |
14010 | to_intel_crtc_state(old_crtc_state); | |
14011 | bool modeset = needs_modeset(crtc->state); | |
3c692a41 | 14012 | |
c34c9ee4 | 14013 | /* Perform vblank evasion around commit operation */ |
62852622 | 14014 | intel_pipe_update_start(intel_crtc); |
0583236e | 14015 | |
bfd16b2a ML |
14016 | if (modeset) |
14017 | return; | |
14018 | ||
20a34e78 ML |
14019 | if (crtc->state->color_mgmt_changed || to_intel_crtc_state(crtc->state)->update_pipe) { |
14020 | intel_color_set_csc(crtc->state); | |
14021 | intel_color_load_luts(crtc->state); | |
14022 | } | |
14023 | ||
bfd16b2a ML |
14024 | if (to_intel_crtc_state(crtc->state)->update_pipe) |
14025 | intel_update_pipe_config(intel_crtc, old_intel_state); | |
14026 | else if (INTEL_INFO(dev)->gen >= 9) | |
0583236e | 14027 | skl_detach_scalers(intel_crtc); |
32b7eeec MR |
14028 | } |
14029 | ||
613d2b27 ML |
14030 | static void intel_finish_crtc_commit(struct drm_crtc *crtc, |
14031 | struct drm_crtc_state *old_crtc_state) | |
32b7eeec | 14032 | { |
32b7eeec | 14033 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
32b7eeec | 14034 | |
62852622 | 14035 | intel_pipe_update_end(intel_crtc); |
3c692a41 GP |
14036 | } |
14037 | ||
cf4c7c12 | 14038 | /** |
4a3b8769 MR |
14039 | * intel_plane_destroy - destroy a plane |
14040 | * @plane: plane to destroy | |
cf4c7c12 | 14041 | * |
4a3b8769 MR |
14042 | * Common destruction function for all types of planes (primary, cursor, |
14043 | * sprite). | |
cf4c7c12 | 14044 | */ |
4a3b8769 | 14045 | void intel_plane_destroy(struct drm_plane *plane) |
465c120c MR |
14046 | { |
14047 | struct intel_plane *intel_plane = to_intel_plane(plane); | |
14048 | drm_plane_cleanup(plane); | |
14049 | kfree(intel_plane); | |
14050 | } | |
14051 | ||
65a3fea0 | 14052 | const struct drm_plane_funcs intel_plane_funcs = { |
70a101f8 MR |
14053 | .update_plane = drm_atomic_helper_update_plane, |
14054 | .disable_plane = drm_atomic_helper_disable_plane, | |
3d7d6510 | 14055 | .destroy = intel_plane_destroy, |
c196e1d6 | 14056 | .set_property = drm_atomic_helper_plane_set_property, |
a98b3431 MR |
14057 | .atomic_get_property = intel_plane_atomic_get_property, |
14058 | .atomic_set_property = intel_plane_atomic_set_property, | |
ea2c67bb MR |
14059 | .atomic_duplicate_state = intel_plane_duplicate_state, |
14060 | .atomic_destroy_state = intel_plane_destroy_state, | |
14061 | ||
465c120c MR |
14062 | }; |
14063 | ||
14064 | static struct drm_plane *intel_primary_plane_create(struct drm_device *dev, | |
14065 | int pipe) | |
14066 | { | |
fca0ce2a VS |
14067 | struct intel_plane *primary = NULL; |
14068 | struct intel_plane_state *state = NULL; | |
465c120c | 14069 | const uint32_t *intel_primary_formats; |
45e3743a | 14070 | unsigned int num_formats; |
fca0ce2a | 14071 | int ret; |
465c120c MR |
14072 | |
14073 | primary = kzalloc(sizeof(*primary), GFP_KERNEL); | |
fca0ce2a VS |
14074 | if (!primary) |
14075 | goto fail; | |
465c120c | 14076 | |
8e7d688b | 14077 | state = intel_create_plane_state(&primary->base); |
fca0ce2a VS |
14078 | if (!state) |
14079 | goto fail; | |
8e7d688b | 14080 | primary->base.state = &state->base; |
ea2c67bb | 14081 | |
465c120c MR |
14082 | primary->can_scale = false; |
14083 | primary->max_downscale = 1; | |
6156a456 CK |
14084 | if (INTEL_INFO(dev)->gen >= 9) { |
14085 | primary->can_scale = true; | |
af99ceda | 14086 | state->scaler_id = -1; |
6156a456 | 14087 | } |
465c120c MR |
14088 | primary->pipe = pipe; |
14089 | primary->plane = pipe; | |
a9ff8714 | 14090 | primary->frontbuffer_bit = INTEL_FRONTBUFFER_PRIMARY(pipe); |
c59cb179 | 14091 | primary->check_plane = intel_check_primary_plane; |
465c120c MR |
14092 | if (HAS_FBC(dev) && INTEL_INFO(dev)->gen < 4) |
14093 | primary->plane = !pipe; | |
14094 | ||
6c0fd451 DL |
14095 | if (INTEL_INFO(dev)->gen >= 9) { |
14096 | intel_primary_formats = skl_primary_formats; | |
14097 | num_formats = ARRAY_SIZE(skl_primary_formats); | |
a8d201af ML |
14098 | |
14099 | primary->update_plane = skylake_update_primary_plane; | |
14100 | primary->disable_plane = skylake_disable_primary_plane; | |
14101 | } else if (HAS_PCH_SPLIT(dev)) { | |
14102 | intel_primary_formats = i965_primary_formats; | |
14103 | num_formats = ARRAY_SIZE(i965_primary_formats); | |
14104 | ||
14105 | primary->update_plane = ironlake_update_primary_plane; | |
14106 | primary->disable_plane = i9xx_disable_primary_plane; | |
6c0fd451 | 14107 | } else if (INTEL_INFO(dev)->gen >= 4) { |
568db4f2 DL |
14108 | intel_primary_formats = i965_primary_formats; |
14109 | num_formats = ARRAY_SIZE(i965_primary_formats); | |
a8d201af ML |
14110 | |
14111 | primary->update_plane = i9xx_update_primary_plane; | |
14112 | primary->disable_plane = i9xx_disable_primary_plane; | |
6c0fd451 DL |
14113 | } else { |
14114 | intel_primary_formats = i8xx_primary_formats; | |
14115 | num_formats = ARRAY_SIZE(i8xx_primary_formats); | |
a8d201af ML |
14116 | |
14117 | primary->update_plane = i9xx_update_primary_plane; | |
14118 | primary->disable_plane = i9xx_disable_primary_plane; | |
465c120c MR |
14119 | } |
14120 | ||
fca0ce2a VS |
14121 | ret = drm_universal_plane_init(dev, &primary->base, 0, |
14122 | &intel_plane_funcs, | |
14123 | intel_primary_formats, num_formats, | |
14124 | DRM_PLANE_TYPE_PRIMARY, NULL); | |
14125 | if (ret) | |
14126 | goto fail; | |
48404c1e | 14127 | |
3b7a5119 SJ |
14128 | if (INTEL_INFO(dev)->gen >= 4) |
14129 | intel_create_rotation_property(dev, primary); | |
48404c1e | 14130 | |
ea2c67bb MR |
14131 | drm_plane_helper_add(&primary->base, &intel_plane_helper_funcs); |
14132 | ||
465c120c | 14133 | return &primary->base; |
fca0ce2a VS |
14134 | |
14135 | fail: | |
14136 | kfree(state); | |
14137 | kfree(primary); | |
14138 | ||
14139 | return NULL; | |
465c120c MR |
14140 | } |
14141 | ||
3b7a5119 SJ |
14142 | void intel_create_rotation_property(struct drm_device *dev, struct intel_plane *plane) |
14143 | { | |
14144 | if (!dev->mode_config.rotation_property) { | |
14145 | unsigned long flags = BIT(DRM_ROTATE_0) | | |
14146 | BIT(DRM_ROTATE_180); | |
14147 | ||
14148 | if (INTEL_INFO(dev)->gen >= 9) | |
14149 | flags |= BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270); | |
14150 | ||
14151 | dev->mode_config.rotation_property = | |
14152 | drm_mode_create_rotation_property(dev, flags); | |
14153 | } | |
14154 | if (dev->mode_config.rotation_property) | |
14155 | drm_object_attach_property(&plane->base.base, | |
14156 | dev->mode_config.rotation_property, | |
14157 | plane->base.state->rotation); | |
14158 | } | |
14159 | ||
3d7d6510 | 14160 | static int |
852e787c | 14161 | intel_check_cursor_plane(struct drm_plane *plane, |
061e4b8d | 14162 | struct intel_crtc_state *crtc_state, |
852e787c | 14163 | struct intel_plane_state *state) |
3d7d6510 | 14164 | { |
061e4b8d | 14165 | struct drm_crtc *crtc = crtc_state->base.crtc; |
2b875c22 | 14166 | struct drm_framebuffer *fb = state->base.fb; |
757f9a3e | 14167 | struct drm_i915_gem_object *obj = intel_fb_obj(fb); |
b29ec92c | 14168 | enum pipe pipe = to_intel_plane(plane)->pipe; |
757f9a3e GP |
14169 | unsigned stride; |
14170 | int ret; | |
3d7d6510 | 14171 | |
061e4b8d ML |
14172 | ret = drm_plane_helper_check_update(plane, crtc, fb, &state->src, |
14173 | &state->dst, &state->clip, | |
3d7d6510 MR |
14174 | DRM_PLANE_HELPER_NO_SCALING, |
14175 | DRM_PLANE_HELPER_NO_SCALING, | |
852e787c | 14176 | true, true, &state->visible); |
757f9a3e GP |
14177 | if (ret) |
14178 | return ret; | |
14179 | ||
757f9a3e GP |
14180 | /* if we want to turn off the cursor ignore width and height */ |
14181 | if (!obj) | |
da20eabd | 14182 | return 0; |
757f9a3e | 14183 | |
757f9a3e | 14184 | /* Check for which cursor types we support */ |
061e4b8d | 14185 | if (!cursor_size_ok(plane->dev, state->base.crtc_w, state->base.crtc_h)) { |
ea2c67bb MR |
14186 | DRM_DEBUG("Cursor dimension %dx%d not supported\n", |
14187 | state->base.crtc_w, state->base.crtc_h); | |
757f9a3e GP |
14188 | return -EINVAL; |
14189 | } | |
14190 | ||
ea2c67bb MR |
14191 | stride = roundup_pow_of_two(state->base.crtc_w) * 4; |
14192 | if (obj->base.size < stride * state->base.crtc_h) { | |
757f9a3e GP |
14193 | DRM_DEBUG_KMS("buffer is too small\n"); |
14194 | return -ENOMEM; | |
14195 | } | |
14196 | ||
3a656b54 | 14197 | if (fb->modifier[0] != DRM_FORMAT_MOD_NONE) { |
757f9a3e | 14198 | DRM_DEBUG_KMS("cursor cannot be tiled\n"); |
da20eabd | 14199 | return -EINVAL; |
32b7eeec MR |
14200 | } |
14201 | ||
b29ec92c VS |
14202 | /* |
14203 | * There's something wrong with the cursor on CHV pipe C. | |
14204 | * If it straddles the left edge of the screen then | |
14205 | * moving it away from the edge or disabling it often | |
14206 | * results in a pipe underrun, and often that can lead to | |
14207 | * dead pipe (constant underrun reported, and it scans | |
14208 | * out just a solid color). To recover from that, the | |
14209 | * display power well must be turned off and on again. | |
14210 | * Refuse the put the cursor into that compromised position. | |
14211 | */ | |
14212 | if (IS_CHERRYVIEW(plane->dev) && pipe == PIPE_C && | |
14213 | state->visible && state->base.crtc_x < 0) { | |
14214 | DRM_DEBUG_KMS("CHV cursor C not allowed to straddle the left screen edge\n"); | |
14215 | return -EINVAL; | |
14216 | } | |
14217 | ||
da20eabd | 14218 | return 0; |
852e787c | 14219 | } |
3d7d6510 | 14220 | |
a8ad0d8e ML |
14221 | static void |
14222 | intel_disable_cursor_plane(struct drm_plane *plane, | |
7fabf5ef | 14223 | struct drm_crtc *crtc) |
a8ad0d8e | 14224 | { |
f2858021 ML |
14225 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
14226 | ||
14227 | intel_crtc->cursor_addr = 0; | |
55a08b3f | 14228 | intel_crtc_update_cursor(crtc, NULL); |
a8ad0d8e ML |
14229 | } |
14230 | ||
f4a2cf29 | 14231 | static void |
55a08b3f ML |
14232 | intel_update_cursor_plane(struct drm_plane *plane, |
14233 | const struct intel_crtc_state *crtc_state, | |
14234 | const struct intel_plane_state *state) | |
852e787c | 14235 | { |
55a08b3f ML |
14236 | struct drm_crtc *crtc = crtc_state->base.crtc; |
14237 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ea2c67bb | 14238 | struct drm_device *dev = plane->dev; |
2b875c22 | 14239 | struct drm_i915_gem_object *obj = intel_fb_obj(state->base.fb); |
a912f12f | 14240 | uint32_t addr; |
852e787c | 14241 | |
f4a2cf29 | 14242 | if (!obj) |
a912f12f | 14243 | addr = 0; |
f4a2cf29 | 14244 | else if (!INTEL_INFO(dev)->cursor_needs_physical) |
a912f12f | 14245 | addr = i915_gem_obj_ggtt_offset(obj); |
f4a2cf29 | 14246 | else |
a912f12f | 14247 | addr = obj->phys_handle->busaddr; |
852e787c | 14248 | |
a912f12f | 14249 | intel_crtc->cursor_addr = addr; |
55a08b3f | 14250 | intel_crtc_update_cursor(crtc, state); |
852e787c GP |
14251 | } |
14252 | ||
3d7d6510 MR |
14253 | static struct drm_plane *intel_cursor_plane_create(struct drm_device *dev, |
14254 | int pipe) | |
14255 | { | |
fca0ce2a VS |
14256 | struct intel_plane *cursor = NULL; |
14257 | struct intel_plane_state *state = NULL; | |
14258 | int ret; | |
3d7d6510 MR |
14259 | |
14260 | cursor = kzalloc(sizeof(*cursor), GFP_KERNEL); | |
fca0ce2a VS |
14261 | if (!cursor) |
14262 | goto fail; | |
3d7d6510 | 14263 | |
8e7d688b | 14264 | state = intel_create_plane_state(&cursor->base); |
fca0ce2a VS |
14265 | if (!state) |
14266 | goto fail; | |
8e7d688b | 14267 | cursor->base.state = &state->base; |
ea2c67bb | 14268 | |
3d7d6510 MR |
14269 | cursor->can_scale = false; |
14270 | cursor->max_downscale = 1; | |
14271 | cursor->pipe = pipe; | |
14272 | cursor->plane = pipe; | |
a9ff8714 | 14273 | cursor->frontbuffer_bit = INTEL_FRONTBUFFER_CURSOR(pipe); |
c59cb179 | 14274 | cursor->check_plane = intel_check_cursor_plane; |
55a08b3f | 14275 | cursor->update_plane = intel_update_cursor_plane; |
a8ad0d8e | 14276 | cursor->disable_plane = intel_disable_cursor_plane; |
3d7d6510 | 14277 | |
fca0ce2a VS |
14278 | ret = drm_universal_plane_init(dev, &cursor->base, 0, |
14279 | &intel_plane_funcs, | |
14280 | intel_cursor_formats, | |
14281 | ARRAY_SIZE(intel_cursor_formats), | |
14282 | DRM_PLANE_TYPE_CURSOR, NULL); | |
14283 | if (ret) | |
14284 | goto fail; | |
4398ad45 VS |
14285 | |
14286 | if (INTEL_INFO(dev)->gen >= 4) { | |
14287 | if (!dev->mode_config.rotation_property) | |
14288 | dev->mode_config.rotation_property = | |
14289 | drm_mode_create_rotation_property(dev, | |
14290 | BIT(DRM_ROTATE_0) | | |
14291 | BIT(DRM_ROTATE_180)); | |
14292 | if (dev->mode_config.rotation_property) | |
14293 | drm_object_attach_property(&cursor->base.base, | |
14294 | dev->mode_config.rotation_property, | |
8e7d688b | 14295 | state->base.rotation); |
4398ad45 VS |
14296 | } |
14297 | ||
af99ceda CK |
14298 | if (INTEL_INFO(dev)->gen >=9) |
14299 | state->scaler_id = -1; | |
14300 | ||
ea2c67bb MR |
14301 | drm_plane_helper_add(&cursor->base, &intel_plane_helper_funcs); |
14302 | ||
3d7d6510 | 14303 | return &cursor->base; |
fca0ce2a VS |
14304 | |
14305 | fail: | |
14306 | kfree(state); | |
14307 | kfree(cursor); | |
14308 | ||
14309 | return NULL; | |
3d7d6510 MR |
14310 | } |
14311 | ||
549e2bfb CK |
14312 | static void skl_init_scalers(struct drm_device *dev, struct intel_crtc *intel_crtc, |
14313 | struct intel_crtc_state *crtc_state) | |
14314 | { | |
14315 | int i; | |
14316 | struct intel_scaler *intel_scaler; | |
14317 | struct intel_crtc_scaler_state *scaler_state = &crtc_state->scaler_state; | |
14318 | ||
14319 | for (i = 0; i < intel_crtc->num_scalers; i++) { | |
14320 | intel_scaler = &scaler_state->scalers[i]; | |
14321 | intel_scaler->in_use = 0; | |
549e2bfb CK |
14322 | intel_scaler->mode = PS_SCALER_MODE_DYN; |
14323 | } | |
14324 | ||
14325 | scaler_state->scaler_id = -1; | |
14326 | } | |
14327 | ||
b358d0a6 | 14328 | static void intel_crtc_init(struct drm_device *dev, int pipe) |
79e53945 | 14329 | { |
fbee40df | 14330 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 | 14331 | struct intel_crtc *intel_crtc; |
f5de6e07 | 14332 | struct intel_crtc_state *crtc_state = NULL; |
3d7d6510 MR |
14333 | struct drm_plane *primary = NULL; |
14334 | struct drm_plane *cursor = NULL; | |
8563b1e8 | 14335 | int ret; |
79e53945 | 14336 | |
955382f3 | 14337 | intel_crtc = kzalloc(sizeof(*intel_crtc), GFP_KERNEL); |
79e53945 JB |
14338 | if (intel_crtc == NULL) |
14339 | return; | |
14340 | ||
f5de6e07 ACO |
14341 | crtc_state = kzalloc(sizeof(*crtc_state), GFP_KERNEL); |
14342 | if (!crtc_state) | |
14343 | goto fail; | |
550acefd ACO |
14344 | intel_crtc->config = crtc_state; |
14345 | intel_crtc->base.state = &crtc_state->base; | |
07878248 | 14346 | crtc_state->base.crtc = &intel_crtc->base; |
f5de6e07 | 14347 | |
549e2bfb CK |
14348 | /* initialize shared scalers */ |
14349 | if (INTEL_INFO(dev)->gen >= 9) { | |
14350 | if (pipe == PIPE_C) | |
14351 | intel_crtc->num_scalers = 1; | |
14352 | else | |
14353 | intel_crtc->num_scalers = SKL_NUM_SCALERS; | |
14354 | ||
14355 | skl_init_scalers(dev, intel_crtc, crtc_state); | |
14356 | } | |
14357 | ||
465c120c | 14358 | primary = intel_primary_plane_create(dev, pipe); |
3d7d6510 MR |
14359 | if (!primary) |
14360 | goto fail; | |
14361 | ||
14362 | cursor = intel_cursor_plane_create(dev, pipe); | |
14363 | if (!cursor) | |
14364 | goto fail; | |
14365 | ||
465c120c | 14366 | ret = drm_crtc_init_with_planes(dev, &intel_crtc->base, primary, |
f9882876 | 14367 | cursor, &intel_crtc_funcs, NULL); |
3d7d6510 MR |
14368 | if (ret) |
14369 | goto fail; | |
79e53945 | 14370 | |
1f1c2e24 VS |
14371 | /* |
14372 | * On gen2/3 only plane A can do fbc, but the panel fitter and lvds port | |
8c0f92e1 | 14373 | * is hooked to pipe B. Hence we want plane A feeding pipe B. |
1f1c2e24 | 14374 | */ |
80824003 JB |
14375 | intel_crtc->pipe = pipe; |
14376 | intel_crtc->plane = pipe; | |
3a77c4c4 | 14377 | if (HAS_FBC(dev) && INTEL_INFO(dev)->gen < 4) { |
28c97730 | 14378 | DRM_DEBUG_KMS("swapping pipes & planes for FBC\n"); |
e2e767ab | 14379 | intel_crtc->plane = !pipe; |
80824003 JB |
14380 | } |
14381 | ||
4b0e333e CW |
14382 | intel_crtc->cursor_base = ~0; |
14383 | intel_crtc->cursor_cntl = ~0; | |
dc41c154 | 14384 | intel_crtc->cursor_size = ~0; |
8d7849db | 14385 | |
852eb00d VS |
14386 | intel_crtc->wm.cxsr_allowed = true; |
14387 | ||
22fd0fab JB |
14388 | BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) || |
14389 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL); | |
14390 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base; | |
14391 | dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base; | |
14392 | ||
79e53945 | 14393 | drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); |
87b6b101 | 14394 | |
8563b1e8 LL |
14395 | intel_color_init(&intel_crtc->base); |
14396 | ||
87b6b101 | 14397 | WARN_ON(drm_crtc_index(&intel_crtc->base) != intel_crtc->pipe); |
3d7d6510 MR |
14398 | return; |
14399 | ||
14400 | fail: | |
14401 | if (primary) | |
14402 | drm_plane_cleanup(primary); | |
14403 | if (cursor) | |
14404 | drm_plane_cleanup(cursor); | |
f5de6e07 | 14405 | kfree(crtc_state); |
3d7d6510 | 14406 | kfree(intel_crtc); |
79e53945 JB |
14407 | } |
14408 | ||
752aa88a JB |
14409 | enum pipe intel_get_pipe_from_connector(struct intel_connector *connector) |
14410 | { | |
14411 | struct drm_encoder *encoder = connector->base.encoder; | |
6e9f798d | 14412 | struct drm_device *dev = connector->base.dev; |
752aa88a | 14413 | |
51fd371b | 14414 | WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); |
752aa88a | 14415 | |
d3babd3f | 14416 | if (!encoder || WARN_ON(!encoder->crtc)) |
752aa88a JB |
14417 | return INVALID_PIPE; |
14418 | ||
14419 | return to_intel_crtc(encoder->crtc)->pipe; | |
14420 | } | |
14421 | ||
08d7b3d1 | 14422 | int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, |
05394f39 | 14423 | struct drm_file *file) |
08d7b3d1 | 14424 | { |
08d7b3d1 | 14425 | struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; |
7707e653 | 14426 | struct drm_crtc *drmmode_crtc; |
c05422d5 | 14427 | struct intel_crtc *crtc; |
08d7b3d1 | 14428 | |
7707e653 | 14429 | drmmode_crtc = drm_crtc_find(dev, pipe_from_crtc_id->crtc_id); |
08d7b3d1 | 14430 | |
7707e653 | 14431 | if (!drmmode_crtc) { |
08d7b3d1 | 14432 | DRM_ERROR("no such CRTC id\n"); |
3f2c2057 | 14433 | return -ENOENT; |
08d7b3d1 CW |
14434 | } |
14435 | ||
7707e653 | 14436 | crtc = to_intel_crtc(drmmode_crtc); |
c05422d5 | 14437 | pipe_from_crtc_id->pipe = crtc->pipe; |
08d7b3d1 | 14438 | |
c05422d5 | 14439 | return 0; |
08d7b3d1 CW |
14440 | } |
14441 | ||
66a9278e | 14442 | static int intel_encoder_clones(struct intel_encoder *encoder) |
79e53945 | 14443 | { |
66a9278e DV |
14444 | struct drm_device *dev = encoder->base.dev; |
14445 | struct intel_encoder *source_encoder; | |
79e53945 | 14446 | int index_mask = 0; |
79e53945 JB |
14447 | int entry = 0; |
14448 | ||
b2784e15 | 14449 | for_each_intel_encoder(dev, source_encoder) { |
bc079e8b | 14450 | if (encoders_cloneable(encoder, source_encoder)) |
66a9278e DV |
14451 | index_mask |= (1 << entry); |
14452 | ||
79e53945 JB |
14453 | entry++; |
14454 | } | |
4ef69c7a | 14455 | |
79e53945 JB |
14456 | return index_mask; |
14457 | } | |
14458 | ||
4d302442 CW |
14459 | static bool has_edp_a(struct drm_device *dev) |
14460 | { | |
14461 | struct drm_i915_private *dev_priv = dev->dev_private; | |
14462 | ||
14463 | if (!IS_MOBILE(dev)) | |
14464 | return false; | |
14465 | ||
14466 | if ((I915_READ(DP_A) & DP_DETECTED) == 0) | |
14467 | return false; | |
14468 | ||
e3589908 | 14469 | if (IS_GEN5(dev) && (I915_READ(FUSE_STRAP) & ILK_eDP_A_DISABLE)) |
4d302442 CW |
14470 | return false; |
14471 | ||
14472 | return true; | |
14473 | } | |
14474 | ||
84b4e042 JB |
14475 | static bool intel_crt_present(struct drm_device *dev) |
14476 | { | |
14477 | struct drm_i915_private *dev_priv = dev->dev_private; | |
14478 | ||
884497ed DL |
14479 | if (INTEL_INFO(dev)->gen >= 9) |
14480 | return false; | |
14481 | ||
cf404ce4 | 14482 | if (IS_HSW_ULT(dev) || IS_BDW_ULT(dev)) |
84b4e042 JB |
14483 | return false; |
14484 | ||
14485 | if (IS_CHERRYVIEW(dev)) | |
14486 | return false; | |
14487 | ||
65e472e4 VS |
14488 | if (HAS_PCH_LPT_H(dev) && I915_READ(SFUSE_STRAP) & SFUSE_STRAP_CRT_DISABLED) |
14489 | return false; | |
14490 | ||
70ac54d0 VS |
14491 | /* DDI E can't be used if DDI A requires 4 lanes */ |
14492 | if (HAS_DDI(dev) && I915_READ(DDI_BUF_CTL(PORT_A)) & DDI_A_4_LANES) | |
14493 | return false; | |
14494 | ||
e4abb733 | 14495 | if (!dev_priv->vbt.int_crt_support) |
84b4e042 JB |
14496 | return false; |
14497 | ||
14498 | return true; | |
14499 | } | |
14500 | ||
79e53945 JB |
14501 | static void intel_setup_outputs(struct drm_device *dev) |
14502 | { | |
725e30ad | 14503 | struct drm_i915_private *dev_priv = dev->dev_private; |
4ef69c7a | 14504 | struct intel_encoder *encoder; |
cb0953d7 | 14505 | bool dpd_is_edp = false; |
79e53945 | 14506 | |
c9093354 | 14507 | intel_lvds_init(dev); |
79e53945 | 14508 | |
84b4e042 | 14509 | if (intel_crt_present(dev)) |
79935fca | 14510 | intel_crt_init(dev); |
cb0953d7 | 14511 | |
c776eb2e VK |
14512 | if (IS_BROXTON(dev)) { |
14513 | /* | |
14514 | * FIXME: Broxton doesn't support port detection via the | |
14515 | * DDI_BUF_CTL_A or SFUSE_STRAP registers, find another way to | |
14516 | * detect the ports. | |
14517 | */ | |
14518 | intel_ddi_init(dev, PORT_A); | |
14519 | intel_ddi_init(dev, PORT_B); | |
14520 | intel_ddi_init(dev, PORT_C); | |
c6c794a2 SS |
14521 | |
14522 | intel_dsi_init(dev); | |
c776eb2e | 14523 | } else if (HAS_DDI(dev)) { |
0e72a5b5 ED |
14524 | int found; |
14525 | ||
de31facd JB |
14526 | /* |
14527 | * Haswell uses DDI functions to detect digital outputs. | |
14528 | * On SKL pre-D0 the strap isn't connected, so we assume | |
14529 | * it's there. | |
14530 | */ | |
77179400 | 14531 | found = I915_READ(DDI_BUF_CTL(PORT_A)) & DDI_INIT_DISPLAY_DETECTED; |
de31facd | 14532 | /* WaIgnoreDDIAStrap: skl */ |
ef11bdb3 | 14533 | if (found || IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) |
0e72a5b5 ED |
14534 | intel_ddi_init(dev, PORT_A); |
14535 | ||
14536 | /* DDI B, C and D detection is indicated by the SFUSE_STRAP | |
14537 | * register */ | |
14538 | found = I915_READ(SFUSE_STRAP); | |
14539 | ||
14540 | if (found & SFUSE_STRAP_DDIB_DETECTED) | |
14541 | intel_ddi_init(dev, PORT_B); | |
14542 | if (found & SFUSE_STRAP_DDIC_DETECTED) | |
14543 | intel_ddi_init(dev, PORT_C); | |
14544 | if (found & SFUSE_STRAP_DDID_DETECTED) | |
14545 | intel_ddi_init(dev, PORT_D); | |
2800e4c2 RV |
14546 | /* |
14547 | * On SKL we don't have a way to detect DDI-E so we rely on VBT. | |
14548 | */ | |
ef11bdb3 | 14549 | if ((IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) && |
2800e4c2 RV |
14550 | (dev_priv->vbt.ddi_port_info[PORT_E].supports_dp || |
14551 | dev_priv->vbt.ddi_port_info[PORT_E].supports_dvi || | |
14552 | dev_priv->vbt.ddi_port_info[PORT_E].supports_hdmi)) | |
14553 | intel_ddi_init(dev, PORT_E); | |
14554 | ||
0e72a5b5 | 14555 | } else if (HAS_PCH_SPLIT(dev)) { |
cb0953d7 | 14556 | int found; |
5d8a7752 | 14557 | dpd_is_edp = intel_dp_is_edp(dev, PORT_D); |
270b3042 DV |
14558 | |
14559 | if (has_edp_a(dev)) | |
14560 | intel_dp_init(dev, DP_A, PORT_A); | |
cb0953d7 | 14561 | |
dc0fa718 | 14562 | if (I915_READ(PCH_HDMIB) & SDVO_DETECTED) { |
461ed3ca | 14563 | /* PCH SDVOB multiplex with HDMIB */ |
2a5c0832 | 14564 | found = intel_sdvo_init(dev, PCH_SDVOB, PORT_B); |
30ad48b7 | 14565 | if (!found) |
e2debe91 | 14566 | intel_hdmi_init(dev, PCH_HDMIB, PORT_B); |
5eb08b69 | 14567 | if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) |
ab9d7c30 | 14568 | intel_dp_init(dev, PCH_DP_B, PORT_B); |
30ad48b7 ZW |
14569 | } |
14570 | ||
dc0fa718 | 14571 | if (I915_READ(PCH_HDMIC) & SDVO_DETECTED) |
e2debe91 | 14572 | intel_hdmi_init(dev, PCH_HDMIC, PORT_C); |
30ad48b7 | 14573 | |
dc0fa718 | 14574 | if (!dpd_is_edp && I915_READ(PCH_HDMID) & SDVO_DETECTED) |
e2debe91 | 14575 | intel_hdmi_init(dev, PCH_HDMID, PORT_D); |
30ad48b7 | 14576 | |
5eb08b69 | 14577 | if (I915_READ(PCH_DP_C) & DP_DETECTED) |
ab9d7c30 | 14578 | intel_dp_init(dev, PCH_DP_C, PORT_C); |
5eb08b69 | 14579 | |
270b3042 | 14580 | if (I915_READ(PCH_DP_D) & DP_DETECTED) |
ab9d7c30 | 14581 | intel_dp_init(dev, PCH_DP_D, PORT_D); |
666a4537 | 14582 | } else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) { |
a5aac5ab | 14583 | bool has_edp, has_port; |
fff7660d | 14584 | |
e17ac6db VS |
14585 | /* |
14586 | * The DP_DETECTED bit is the latched state of the DDC | |
14587 | * SDA pin at boot. However since eDP doesn't require DDC | |
14588 | * (no way to plug in a DP->HDMI dongle) the DDC pins for | |
14589 | * eDP ports may have been muxed to an alternate function. | |
14590 | * Thus we can't rely on the DP_DETECTED bit alone to detect | |
14591 | * eDP ports. Consult the VBT as well as DP_DETECTED to | |
14592 | * detect eDP ports. | |
a5aac5ab VS |
14593 | * |
14594 | * Sadly the straps seem to be missing sometimes even for HDMI | |
14595 | * ports (eg. on Voyo V3 - CHT x7-Z8700), so check both strap | |
14596 | * and VBT for the presence of the port. Additionally we can't | |
14597 | * trust the port type the VBT declares as we've seen at least | |
14598 | * HDMI ports that the VBT claim are DP or eDP. | |
e17ac6db | 14599 | */ |
fff7660d | 14600 | has_edp = intel_dp_is_edp(dev, PORT_B); |
a5aac5ab VS |
14601 | has_port = intel_bios_is_port_present(dev_priv, PORT_B); |
14602 | if (I915_READ(VLV_DP_B) & DP_DETECTED || has_port) | |
fff7660d | 14603 | has_edp &= intel_dp_init(dev, VLV_DP_B, PORT_B); |
a5aac5ab | 14604 | if ((I915_READ(VLV_HDMIB) & SDVO_DETECTED || has_port) && !has_edp) |
e66eb81d | 14605 | intel_hdmi_init(dev, VLV_HDMIB, PORT_B); |
585a94b8 | 14606 | |
fff7660d | 14607 | has_edp = intel_dp_is_edp(dev, PORT_C); |
a5aac5ab VS |
14608 | has_port = intel_bios_is_port_present(dev_priv, PORT_C); |
14609 | if (I915_READ(VLV_DP_C) & DP_DETECTED || has_port) | |
fff7660d | 14610 | has_edp &= intel_dp_init(dev, VLV_DP_C, PORT_C); |
a5aac5ab | 14611 | if ((I915_READ(VLV_HDMIC) & SDVO_DETECTED || has_port) && !has_edp) |
e66eb81d | 14612 | intel_hdmi_init(dev, VLV_HDMIC, PORT_C); |
19c03924 | 14613 | |
9418c1f1 | 14614 | if (IS_CHERRYVIEW(dev)) { |
a5aac5ab VS |
14615 | /* |
14616 | * eDP not supported on port D, | |
14617 | * so no need to worry about it | |
14618 | */ | |
14619 | has_port = intel_bios_is_port_present(dev_priv, PORT_D); | |
14620 | if (I915_READ(CHV_DP_D) & DP_DETECTED || has_port) | |
e66eb81d | 14621 | intel_dp_init(dev, CHV_DP_D, PORT_D); |
a5aac5ab VS |
14622 | if (I915_READ(CHV_HDMID) & SDVO_DETECTED || has_port) |
14623 | intel_hdmi_init(dev, CHV_HDMID, PORT_D); | |
9418c1f1 VS |
14624 | } |
14625 | ||
3cfca973 | 14626 | intel_dsi_init(dev); |
09da55dc | 14627 | } else if (!IS_GEN2(dev) && !IS_PINEVIEW(dev)) { |
27185ae1 | 14628 | bool found = false; |
7d57382e | 14629 | |
e2debe91 | 14630 | if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 14631 | DRM_DEBUG_KMS("probing SDVOB\n"); |
2a5c0832 | 14632 | found = intel_sdvo_init(dev, GEN3_SDVOB, PORT_B); |
3fec3d2f | 14633 | if (!found && IS_G4X(dev)) { |
b01f2c3a | 14634 | DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); |
e2debe91 | 14635 | intel_hdmi_init(dev, GEN4_HDMIB, PORT_B); |
b01f2c3a | 14636 | } |
27185ae1 | 14637 | |
3fec3d2f | 14638 | if (!found && IS_G4X(dev)) |
ab9d7c30 | 14639 | intel_dp_init(dev, DP_B, PORT_B); |
725e30ad | 14640 | } |
13520b05 KH |
14641 | |
14642 | /* Before G4X SDVOC doesn't have its own detect register */ | |
13520b05 | 14643 | |
e2debe91 | 14644 | if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 14645 | DRM_DEBUG_KMS("probing SDVOC\n"); |
2a5c0832 | 14646 | found = intel_sdvo_init(dev, GEN3_SDVOC, PORT_C); |
b01f2c3a | 14647 | } |
27185ae1 | 14648 | |
e2debe91 | 14649 | if (!found && (I915_READ(GEN3_SDVOC) & SDVO_DETECTED)) { |
27185ae1 | 14650 | |
3fec3d2f | 14651 | if (IS_G4X(dev)) { |
b01f2c3a | 14652 | DRM_DEBUG_KMS("probing HDMI on SDVOC\n"); |
e2debe91 | 14653 | intel_hdmi_init(dev, GEN4_HDMIC, PORT_C); |
b01f2c3a | 14654 | } |
3fec3d2f | 14655 | if (IS_G4X(dev)) |
ab9d7c30 | 14656 | intel_dp_init(dev, DP_C, PORT_C); |
725e30ad | 14657 | } |
27185ae1 | 14658 | |
3fec3d2f | 14659 | if (IS_G4X(dev) && |
e7281eab | 14660 | (I915_READ(DP_D) & DP_DETECTED)) |
ab9d7c30 | 14661 | intel_dp_init(dev, DP_D, PORT_D); |
bad720ff | 14662 | } else if (IS_GEN2(dev)) |
79e53945 JB |
14663 | intel_dvo_init(dev); |
14664 | ||
103a196f | 14665 | if (SUPPORTS_TV(dev)) |
79e53945 JB |
14666 | intel_tv_init(dev); |
14667 | ||
0bc12bcb | 14668 | intel_psr_init(dev); |
7c8f8a70 | 14669 | |
b2784e15 | 14670 | for_each_intel_encoder(dev, encoder) { |
4ef69c7a CW |
14671 | encoder->base.possible_crtcs = encoder->crtc_mask; |
14672 | encoder->base.possible_clones = | |
66a9278e | 14673 | intel_encoder_clones(encoder); |
79e53945 | 14674 | } |
47356eb6 | 14675 | |
dde86e2d | 14676 | intel_init_pch_refclk(dev); |
270b3042 DV |
14677 | |
14678 | drm_helper_move_panel_connectors_to_head(dev); | |
79e53945 JB |
14679 | } |
14680 | ||
14681 | static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb) | |
14682 | { | |
60a5ca01 | 14683 | struct drm_device *dev = fb->dev; |
79e53945 | 14684 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); |
79e53945 | 14685 | |
ef2d633e | 14686 | drm_framebuffer_cleanup(fb); |
60a5ca01 | 14687 | mutex_lock(&dev->struct_mutex); |
ef2d633e | 14688 | WARN_ON(!intel_fb->obj->framebuffer_references--); |
60a5ca01 VS |
14689 | drm_gem_object_unreference(&intel_fb->obj->base); |
14690 | mutex_unlock(&dev->struct_mutex); | |
79e53945 JB |
14691 | kfree(intel_fb); |
14692 | } | |
14693 | ||
14694 | static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb, | |
05394f39 | 14695 | struct drm_file *file, |
79e53945 JB |
14696 | unsigned int *handle) |
14697 | { | |
14698 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
05394f39 | 14699 | struct drm_i915_gem_object *obj = intel_fb->obj; |
79e53945 | 14700 | |
cc917ab4 CW |
14701 | if (obj->userptr.mm) { |
14702 | DRM_DEBUG("attempting to use a userptr for a framebuffer, denied\n"); | |
14703 | return -EINVAL; | |
14704 | } | |
14705 | ||
05394f39 | 14706 | return drm_gem_handle_create(file, &obj->base, handle); |
79e53945 JB |
14707 | } |
14708 | ||
86c98588 RV |
14709 | static int intel_user_framebuffer_dirty(struct drm_framebuffer *fb, |
14710 | struct drm_file *file, | |
14711 | unsigned flags, unsigned color, | |
14712 | struct drm_clip_rect *clips, | |
14713 | unsigned num_clips) | |
14714 | { | |
14715 | struct drm_device *dev = fb->dev; | |
14716 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
14717 | struct drm_i915_gem_object *obj = intel_fb->obj; | |
14718 | ||
14719 | mutex_lock(&dev->struct_mutex); | |
74b4ea1e | 14720 | intel_fb_obj_flush(obj, false, ORIGIN_DIRTYFB); |
86c98588 RV |
14721 | mutex_unlock(&dev->struct_mutex); |
14722 | ||
14723 | return 0; | |
14724 | } | |
14725 | ||
79e53945 JB |
14726 | static const struct drm_framebuffer_funcs intel_fb_funcs = { |
14727 | .destroy = intel_user_framebuffer_destroy, | |
14728 | .create_handle = intel_user_framebuffer_create_handle, | |
86c98588 | 14729 | .dirty = intel_user_framebuffer_dirty, |
79e53945 JB |
14730 | }; |
14731 | ||
b321803d DL |
14732 | static |
14733 | u32 intel_fb_pitch_limit(struct drm_device *dev, uint64_t fb_modifier, | |
14734 | uint32_t pixel_format) | |
14735 | { | |
14736 | u32 gen = INTEL_INFO(dev)->gen; | |
14737 | ||
14738 | if (gen >= 9) { | |
ac484963 VS |
14739 | int cpp = drm_format_plane_cpp(pixel_format, 0); |
14740 | ||
b321803d DL |
14741 | /* "The stride in bytes must not exceed the of the size of 8K |
14742 | * pixels and 32K bytes." | |
14743 | */ | |
ac484963 | 14744 | return min(8192 * cpp, 32768); |
666a4537 | 14745 | } else if (gen >= 5 && !IS_VALLEYVIEW(dev) && !IS_CHERRYVIEW(dev)) { |
b321803d DL |
14746 | return 32*1024; |
14747 | } else if (gen >= 4) { | |
14748 | if (fb_modifier == I915_FORMAT_MOD_X_TILED) | |
14749 | return 16*1024; | |
14750 | else | |
14751 | return 32*1024; | |
14752 | } else if (gen >= 3) { | |
14753 | if (fb_modifier == I915_FORMAT_MOD_X_TILED) | |
14754 | return 8*1024; | |
14755 | else | |
14756 | return 16*1024; | |
14757 | } else { | |
14758 | /* XXX DSPC is limited to 4k tiled */ | |
14759 | return 8*1024; | |
14760 | } | |
14761 | } | |
14762 | ||
b5ea642a DV |
14763 | static int intel_framebuffer_init(struct drm_device *dev, |
14764 | struct intel_framebuffer *intel_fb, | |
14765 | struct drm_mode_fb_cmd2 *mode_cmd, | |
14766 | struct drm_i915_gem_object *obj) | |
79e53945 | 14767 | { |
7b49f948 | 14768 | struct drm_i915_private *dev_priv = to_i915(dev); |
6761dd31 | 14769 | unsigned int aligned_height; |
79e53945 | 14770 | int ret; |
b321803d | 14771 | u32 pitch_limit, stride_alignment; |
79e53945 | 14772 | |
dd4916c5 DV |
14773 | WARN_ON(!mutex_is_locked(&dev->struct_mutex)); |
14774 | ||
2a80eada DV |
14775 | if (mode_cmd->flags & DRM_MODE_FB_MODIFIERS) { |
14776 | /* Enforce that fb modifier and tiling mode match, but only for | |
14777 | * X-tiled. This is needed for FBC. */ | |
14778 | if (!!(obj->tiling_mode == I915_TILING_X) != | |
14779 | !!(mode_cmd->modifier[0] == I915_FORMAT_MOD_X_TILED)) { | |
14780 | DRM_DEBUG("tiling_mode doesn't match fb modifier\n"); | |
14781 | return -EINVAL; | |
14782 | } | |
14783 | } else { | |
14784 | if (obj->tiling_mode == I915_TILING_X) | |
14785 | mode_cmd->modifier[0] = I915_FORMAT_MOD_X_TILED; | |
14786 | else if (obj->tiling_mode == I915_TILING_Y) { | |
14787 | DRM_DEBUG("No Y tiling for legacy addfb\n"); | |
14788 | return -EINVAL; | |
14789 | } | |
14790 | } | |
14791 | ||
9a8f0a12 TU |
14792 | /* Passed in modifier sanity checking. */ |
14793 | switch (mode_cmd->modifier[0]) { | |
14794 | case I915_FORMAT_MOD_Y_TILED: | |
14795 | case I915_FORMAT_MOD_Yf_TILED: | |
14796 | if (INTEL_INFO(dev)->gen < 9) { | |
14797 | DRM_DEBUG("Unsupported tiling 0x%llx!\n", | |
14798 | mode_cmd->modifier[0]); | |
14799 | return -EINVAL; | |
14800 | } | |
14801 | case DRM_FORMAT_MOD_NONE: | |
14802 | case I915_FORMAT_MOD_X_TILED: | |
14803 | break; | |
14804 | default: | |
c0f40428 JB |
14805 | DRM_DEBUG("Unsupported fb modifier 0x%llx!\n", |
14806 | mode_cmd->modifier[0]); | |
57cd6508 | 14807 | return -EINVAL; |
c16ed4be | 14808 | } |
57cd6508 | 14809 | |
7b49f948 VS |
14810 | stride_alignment = intel_fb_stride_alignment(dev_priv, |
14811 | mode_cmd->modifier[0], | |
b321803d DL |
14812 | mode_cmd->pixel_format); |
14813 | if (mode_cmd->pitches[0] & (stride_alignment - 1)) { | |
14814 | DRM_DEBUG("pitch (%d) must be at least %u byte aligned\n", | |
14815 | mode_cmd->pitches[0], stride_alignment); | |
57cd6508 | 14816 | return -EINVAL; |
c16ed4be | 14817 | } |
57cd6508 | 14818 | |
b321803d DL |
14819 | pitch_limit = intel_fb_pitch_limit(dev, mode_cmd->modifier[0], |
14820 | mode_cmd->pixel_format); | |
a35cdaa0 | 14821 | if (mode_cmd->pitches[0] > pitch_limit) { |
b321803d DL |
14822 | DRM_DEBUG("%s pitch (%u) must be at less than %d\n", |
14823 | mode_cmd->modifier[0] != DRM_FORMAT_MOD_NONE ? | |
2a80eada | 14824 | "tiled" : "linear", |
a35cdaa0 | 14825 | mode_cmd->pitches[0], pitch_limit); |
5d7bd705 | 14826 | return -EINVAL; |
c16ed4be | 14827 | } |
5d7bd705 | 14828 | |
2a80eada | 14829 | if (mode_cmd->modifier[0] == I915_FORMAT_MOD_X_TILED && |
c16ed4be CW |
14830 | mode_cmd->pitches[0] != obj->stride) { |
14831 | DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n", | |
14832 | mode_cmd->pitches[0], obj->stride); | |
5d7bd705 | 14833 | return -EINVAL; |
c16ed4be | 14834 | } |
5d7bd705 | 14835 | |
57779d06 | 14836 | /* Reject formats not supported by any plane early. */ |
308e5bcb | 14837 | switch (mode_cmd->pixel_format) { |
57779d06 | 14838 | case DRM_FORMAT_C8: |
04b3924d VS |
14839 | case DRM_FORMAT_RGB565: |
14840 | case DRM_FORMAT_XRGB8888: | |
14841 | case DRM_FORMAT_ARGB8888: | |
57779d06 VS |
14842 | break; |
14843 | case DRM_FORMAT_XRGB1555: | |
c16ed4be | 14844 | if (INTEL_INFO(dev)->gen > 3) { |
4ee62c76 VS |
14845 | DRM_DEBUG("unsupported pixel format: %s\n", |
14846 | drm_get_format_name(mode_cmd->pixel_format)); | |
57779d06 | 14847 | return -EINVAL; |
c16ed4be | 14848 | } |
57779d06 | 14849 | break; |
57779d06 | 14850 | case DRM_FORMAT_ABGR8888: |
666a4537 WB |
14851 | if (!IS_VALLEYVIEW(dev) && !IS_CHERRYVIEW(dev) && |
14852 | INTEL_INFO(dev)->gen < 9) { | |
6c0fd451 DL |
14853 | DRM_DEBUG("unsupported pixel format: %s\n", |
14854 | drm_get_format_name(mode_cmd->pixel_format)); | |
14855 | return -EINVAL; | |
14856 | } | |
14857 | break; | |
14858 | case DRM_FORMAT_XBGR8888: | |
04b3924d | 14859 | case DRM_FORMAT_XRGB2101010: |
57779d06 | 14860 | case DRM_FORMAT_XBGR2101010: |
c16ed4be | 14861 | if (INTEL_INFO(dev)->gen < 4) { |
4ee62c76 VS |
14862 | DRM_DEBUG("unsupported pixel format: %s\n", |
14863 | drm_get_format_name(mode_cmd->pixel_format)); | |
57779d06 | 14864 | return -EINVAL; |
c16ed4be | 14865 | } |
b5626747 | 14866 | break; |
7531208b | 14867 | case DRM_FORMAT_ABGR2101010: |
666a4537 | 14868 | if (!IS_VALLEYVIEW(dev) && !IS_CHERRYVIEW(dev)) { |
7531208b DL |
14869 | DRM_DEBUG("unsupported pixel format: %s\n", |
14870 | drm_get_format_name(mode_cmd->pixel_format)); | |
14871 | return -EINVAL; | |
14872 | } | |
14873 | break; | |
04b3924d VS |
14874 | case DRM_FORMAT_YUYV: |
14875 | case DRM_FORMAT_UYVY: | |
14876 | case DRM_FORMAT_YVYU: | |
14877 | case DRM_FORMAT_VYUY: | |
c16ed4be | 14878 | if (INTEL_INFO(dev)->gen < 5) { |
4ee62c76 VS |
14879 | DRM_DEBUG("unsupported pixel format: %s\n", |
14880 | drm_get_format_name(mode_cmd->pixel_format)); | |
57779d06 | 14881 | return -EINVAL; |
c16ed4be | 14882 | } |
57cd6508 CW |
14883 | break; |
14884 | default: | |
4ee62c76 VS |
14885 | DRM_DEBUG("unsupported pixel format: %s\n", |
14886 | drm_get_format_name(mode_cmd->pixel_format)); | |
57cd6508 CW |
14887 | return -EINVAL; |
14888 | } | |
14889 | ||
90f9a336 VS |
14890 | /* FIXME need to adjust LINOFF/TILEOFF accordingly. */ |
14891 | if (mode_cmd->offsets[0] != 0) | |
14892 | return -EINVAL; | |
14893 | ||
ec2c981e | 14894 | aligned_height = intel_fb_align_height(dev, mode_cmd->height, |
091df6cb DV |
14895 | mode_cmd->pixel_format, |
14896 | mode_cmd->modifier[0]); | |
53155c0a DV |
14897 | /* FIXME drm helper for size checks (especially planar formats)? */ |
14898 | if (obj->base.size < aligned_height * mode_cmd->pitches[0]) | |
14899 | return -EINVAL; | |
14900 | ||
c7d73f6a DV |
14901 | drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); |
14902 | intel_fb->obj = obj; | |
14903 | ||
2d7a215f VS |
14904 | intel_fill_fb_info(dev_priv, &intel_fb->base); |
14905 | ||
79e53945 JB |
14906 | ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); |
14907 | if (ret) { | |
14908 | DRM_ERROR("framebuffer init failed %d\n", ret); | |
14909 | return ret; | |
14910 | } | |
14911 | ||
0b05e1e0 VS |
14912 | intel_fb->obj->framebuffer_references++; |
14913 | ||
79e53945 JB |
14914 | return 0; |
14915 | } | |
14916 | ||
79e53945 JB |
14917 | static struct drm_framebuffer * |
14918 | intel_user_framebuffer_create(struct drm_device *dev, | |
14919 | struct drm_file *filp, | |
1eb83451 | 14920 | const struct drm_mode_fb_cmd2 *user_mode_cmd) |
79e53945 | 14921 | { |
dcb1394e | 14922 | struct drm_framebuffer *fb; |
05394f39 | 14923 | struct drm_i915_gem_object *obj; |
76dc3769 | 14924 | struct drm_mode_fb_cmd2 mode_cmd = *user_mode_cmd; |
79e53945 | 14925 | |
a8ad0bd8 | 14926 | obj = to_intel_bo(drm_gem_object_lookup(filp, mode_cmd.handles[0])); |
c8725226 | 14927 | if (&obj->base == NULL) |
cce13ff7 | 14928 | return ERR_PTR(-ENOENT); |
79e53945 | 14929 | |
92907cbb | 14930 | fb = intel_framebuffer_create(dev, &mode_cmd, obj); |
dcb1394e LW |
14931 | if (IS_ERR(fb)) |
14932 | drm_gem_object_unreference_unlocked(&obj->base); | |
14933 | ||
14934 | return fb; | |
79e53945 JB |
14935 | } |
14936 | ||
0695726e | 14937 | #ifndef CONFIG_DRM_FBDEV_EMULATION |
0632fef6 | 14938 | static inline void intel_fbdev_output_poll_changed(struct drm_device *dev) |
4520f53a DV |
14939 | { |
14940 | } | |
14941 | #endif | |
14942 | ||
79e53945 | 14943 | static const struct drm_mode_config_funcs intel_mode_funcs = { |
79e53945 | 14944 | .fb_create = intel_user_framebuffer_create, |
0632fef6 | 14945 | .output_poll_changed = intel_fbdev_output_poll_changed, |
5ee67f1c MR |
14946 | .atomic_check = intel_atomic_check, |
14947 | .atomic_commit = intel_atomic_commit, | |
de419ab6 ML |
14948 | .atomic_state_alloc = intel_atomic_state_alloc, |
14949 | .atomic_state_clear = intel_atomic_state_clear, | |
79e53945 JB |
14950 | }; |
14951 | ||
88212941 ID |
14952 | /** |
14953 | * intel_init_display_hooks - initialize the display modesetting hooks | |
14954 | * @dev_priv: device private | |
14955 | */ | |
14956 | void intel_init_display_hooks(struct drm_i915_private *dev_priv) | |
e70236a8 | 14957 | { |
88212941 | 14958 | if (INTEL_INFO(dev_priv)->gen >= 9) { |
bc8d7dff | 14959 | dev_priv->display.get_pipe_config = haswell_get_pipe_config; |
5724dbd1 DL |
14960 | dev_priv->display.get_initial_plane_config = |
14961 | skylake_get_initial_plane_config; | |
bc8d7dff DL |
14962 | dev_priv->display.crtc_compute_clock = |
14963 | haswell_crtc_compute_clock; | |
14964 | dev_priv->display.crtc_enable = haswell_crtc_enable; | |
14965 | dev_priv->display.crtc_disable = haswell_crtc_disable; | |
88212941 | 14966 | } else if (HAS_DDI(dev_priv)) { |
0e8ffe1b | 14967 | dev_priv->display.get_pipe_config = haswell_get_pipe_config; |
5724dbd1 DL |
14968 | dev_priv->display.get_initial_plane_config = |
14969 | ironlake_get_initial_plane_config; | |
797d0259 ACO |
14970 | dev_priv->display.crtc_compute_clock = |
14971 | haswell_crtc_compute_clock; | |
4f771f10 PZ |
14972 | dev_priv->display.crtc_enable = haswell_crtc_enable; |
14973 | dev_priv->display.crtc_disable = haswell_crtc_disable; | |
88212941 | 14974 | } else if (HAS_PCH_SPLIT(dev_priv)) { |
0e8ffe1b | 14975 | dev_priv->display.get_pipe_config = ironlake_get_pipe_config; |
5724dbd1 DL |
14976 | dev_priv->display.get_initial_plane_config = |
14977 | ironlake_get_initial_plane_config; | |
3fb37703 ACO |
14978 | dev_priv->display.crtc_compute_clock = |
14979 | ironlake_crtc_compute_clock; | |
76e5a89c DV |
14980 | dev_priv->display.crtc_enable = ironlake_crtc_enable; |
14981 | dev_priv->display.crtc_disable = ironlake_crtc_disable; | |
65b3d6a9 | 14982 | } else if (IS_CHERRYVIEW(dev_priv)) { |
89b667f8 | 14983 | dev_priv->display.get_pipe_config = i9xx_get_pipe_config; |
5724dbd1 DL |
14984 | dev_priv->display.get_initial_plane_config = |
14985 | i9xx_get_initial_plane_config; | |
65b3d6a9 | 14986 | dev_priv->display.crtc_compute_clock = chv_crtc_compute_clock; |
89b667f8 JB |
14987 | dev_priv->display.crtc_enable = valleyview_crtc_enable; |
14988 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
65b3d6a9 ACO |
14989 | } else if (IS_VALLEYVIEW(dev_priv)) { |
14990 | dev_priv->display.get_pipe_config = i9xx_get_pipe_config; | |
14991 | dev_priv->display.get_initial_plane_config = | |
14992 | i9xx_get_initial_plane_config; | |
14993 | dev_priv->display.crtc_compute_clock = vlv_crtc_compute_clock; | |
89b667f8 JB |
14994 | dev_priv->display.crtc_enable = valleyview_crtc_enable; |
14995 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
19ec6693 ACO |
14996 | } else if (IS_G4X(dev_priv)) { |
14997 | dev_priv->display.get_pipe_config = i9xx_get_pipe_config; | |
14998 | dev_priv->display.get_initial_plane_config = | |
14999 | i9xx_get_initial_plane_config; | |
15000 | dev_priv->display.crtc_compute_clock = g4x_crtc_compute_clock; | |
15001 | dev_priv->display.crtc_enable = i9xx_crtc_enable; | |
15002 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
70e8aa21 ACO |
15003 | } else if (IS_PINEVIEW(dev_priv)) { |
15004 | dev_priv->display.get_pipe_config = i9xx_get_pipe_config; | |
15005 | dev_priv->display.get_initial_plane_config = | |
15006 | i9xx_get_initial_plane_config; | |
15007 | dev_priv->display.crtc_compute_clock = pnv_crtc_compute_clock; | |
15008 | dev_priv->display.crtc_enable = i9xx_crtc_enable; | |
15009 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
81c97f52 | 15010 | } else if (!IS_GEN2(dev_priv)) { |
0e8ffe1b | 15011 | dev_priv->display.get_pipe_config = i9xx_get_pipe_config; |
5724dbd1 DL |
15012 | dev_priv->display.get_initial_plane_config = |
15013 | i9xx_get_initial_plane_config; | |
d6dfee7a | 15014 | dev_priv->display.crtc_compute_clock = i9xx_crtc_compute_clock; |
76e5a89c DV |
15015 | dev_priv->display.crtc_enable = i9xx_crtc_enable; |
15016 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
81c97f52 ACO |
15017 | } else { |
15018 | dev_priv->display.get_pipe_config = i9xx_get_pipe_config; | |
15019 | dev_priv->display.get_initial_plane_config = | |
15020 | i9xx_get_initial_plane_config; | |
15021 | dev_priv->display.crtc_compute_clock = i8xx_crtc_compute_clock; | |
15022 | dev_priv->display.crtc_enable = i9xx_crtc_enable; | |
15023 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
f564048e | 15024 | } |
e70236a8 | 15025 | |
e70236a8 | 15026 | /* Returns the core display clock speed */ |
88212941 | 15027 | if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) |
1652d19e VS |
15028 | dev_priv->display.get_display_clock_speed = |
15029 | skylake_get_display_clock_speed; | |
88212941 | 15030 | else if (IS_BROXTON(dev_priv)) |
acd3f3d3 BP |
15031 | dev_priv->display.get_display_clock_speed = |
15032 | broxton_get_display_clock_speed; | |
88212941 | 15033 | else if (IS_BROADWELL(dev_priv)) |
1652d19e VS |
15034 | dev_priv->display.get_display_clock_speed = |
15035 | broadwell_get_display_clock_speed; | |
88212941 | 15036 | else if (IS_HASWELL(dev_priv)) |
1652d19e VS |
15037 | dev_priv->display.get_display_clock_speed = |
15038 | haswell_get_display_clock_speed; | |
88212941 | 15039 | else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) |
25eb05fc JB |
15040 | dev_priv->display.get_display_clock_speed = |
15041 | valleyview_get_display_clock_speed; | |
88212941 | 15042 | else if (IS_GEN5(dev_priv)) |
b37a6434 VS |
15043 | dev_priv->display.get_display_clock_speed = |
15044 | ilk_get_display_clock_speed; | |
88212941 ID |
15045 | else if (IS_I945G(dev_priv) || IS_BROADWATER(dev_priv) || |
15046 | IS_GEN6(dev_priv) || IS_IVYBRIDGE(dev_priv)) | |
e70236a8 JB |
15047 | dev_priv->display.get_display_clock_speed = |
15048 | i945_get_display_clock_speed; | |
88212941 | 15049 | else if (IS_GM45(dev_priv)) |
34edce2f VS |
15050 | dev_priv->display.get_display_clock_speed = |
15051 | gm45_get_display_clock_speed; | |
88212941 | 15052 | else if (IS_CRESTLINE(dev_priv)) |
34edce2f VS |
15053 | dev_priv->display.get_display_clock_speed = |
15054 | i965gm_get_display_clock_speed; | |
88212941 | 15055 | else if (IS_PINEVIEW(dev_priv)) |
34edce2f VS |
15056 | dev_priv->display.get_display_clock_speed = |
15057 | pnv_get_display_clock_speed; | |
88212941 | 15058 | else if (IS_G33(dev_priv) || IS_G4X(dev_priv)) |
34edce2f VS |
15059 | dev_priv->display.get_display_clock_speed = |
15060 | g33_get_display_clock_speed; | |
88212941 | 15061 | else if (IS_I915G(dev_priv)) |
e70236a8 JB |
15062 | dev_priv->display.get_display_clock_speed = |
15063 | i915_get_display_clock_speed; | |
88212941 | 15064 | else if (IS_I945GM(dev_priv) || IS_845G(dev_priv)) |
e70236a8 JB |
15065 | dev_priv->display.get_display_clock_speed = |
15066 | i9xx_misc_get_display_clock_speed; | |
88212941 | 15067 | else if (IS_I915GM(dev_priv)) |
e70236a8 JB |
15068 | dev_priv->display.get_display_clock_speed = |
15069 | i915gm_get_display_clock_speed; | |
88212941 | 15070 | else if (IS_I865G(dev_priv)) |
e70236a8 JB |
15071 | dev_priv->display.get_display_clock_speed = |
15072 | i865_get_display_clock_speed; | |
88212941 | 15073 | else if (IS_I85X(dev_priv)) |
e70236a8 | 15074 | dev_priv->display.get_display_clock_speed = |
1b1d2716 | 15075 | i85x_get_display_clock_speed; |
623e01e5 | 15076 | else { /* 830 */ |
88212941 | 15077 | WARN(!IS_I830(dev_priv), "Unknown platform. Assuming 133 MHz CDCLK\n"); |
e70236a8 JB |
15078 | dev_priv->display.get_display_clock_speed = |
15079 | i830_get_display_clock_speed; | |
623e01e5 | 15080 | } |
e70236a8 | 15081 | |
88212941 | 15082 | if (IS_GEN5(dev_priv)) { |
3bb11b53 | 15083 | dev_priv->display.fdi_link_train = ironlake_fdi_link_train; |
88212941 | 15084 | } else if (IS_GEN6(dev_priv)) { |
3bb11b53 | 15085 | dev_priv->display.fdi_link_train = gen6_fdi_link_train; |
88212941 | 15086 | } else if (IS_IVYBRIDGE(dev_priv)) { |
3bb11b53 SJ |
15087 | /* FIXME: detect B0+ stepping and use auto training */ |
15088 | dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train; | |
88212941 | 15089 | } else if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) { |
3bb11b53 | 15090 | dev_priv->display.fdi_link_train = hsw_fdi_link_train; |
88212941 | 15091 | if (IS_BROADWELL(dev_priv)) { |
27c329ed ML |
15092 | dev_priv->display.modeset_commit_cdclk = |
15093 | broadwell_modeset_commit_cdclk; | |
15094 | dev_priv->display.modeset_calc_cdclk = | |
15095 | broadwell_modeset_calc_cdclk; | |
15096 | } | |
88212941 | 15097 | } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) { |
27c329ed ML |
15098 | dev_priv->display.modeset_commit_cdclk = |
15099 | valleyview_modeset_commit_cdclk; | |
15100 | dev_priv->display.modeset_calc_cdclk = | |
15101 | valleyview_modeset_calc_cdclk; | |
88212941 | 15102 | } else if (IS_BROXTON(dev_priv)) { |
27c329ed ML |
15103 | dev_priv->display.modeset_commit_cdclk = |
15104 | broxton_modeset_commit_cdclk; | |
15105 | dev_priv->display.modeset_calc_cdclk = | |
15106 | broxton_modeset_calc_cdclk; | |
e70236a8 | 15107 | } |
8c9f3aaf | 15108 | |
88212941 | 15109 | switch (INTEL_INFO(dev_priv)->gen) { |
8c9f3aaf JB |
15110 | case 2: |
15111 | dev_priv->display.queue_flip = intel_gen2_queue_flip; | |
15112 | break; | |
15113 | ||
15114 | case 3: | |
15115 | dev_priv->display.queue_flip = intel_gen3_queue_flip; | |
15116 | break; | |
15117 | ||
15118 | case 4: | |
15119 | case 5: | |
15120 | dev_priv->display.queue_flip = intel_gen4_queue_flip; | |
15121 | break; | |
15122 | ||
15123 | case 6: | |
15124 | dev_priv->display.queue_flip = intel_gen6_queue_flip; | |
15125 | break; | |
7c9017e5 | 15126 | case 7: |
4e0bbc31 | 15127 | case 8: /* FIXME(BDW): Check that the gen8 RCS flip works. */ |
7c9017e5 JB |
15128 | dev_priv->display.queue_flip = intel_gen7_queue_flip; |
15129 | break; | |
830c81db | 15130 | case 9: |
ba343e02 TU |
15131 | /* Drop through - unsupported since execlist only. */ |
15132 | default: | |
15133 | /* Default just returns -ENODEV to indicate unsupported */ | |
15134 | dev_priv->display.queue_flip = intel_default_queue_flip; | |
8c9f3aaf | 15135 | } |
e70236a8 JB |
15136 | } |
15137 | ||
b690e96c JB |
15138 | /* |
15139 | * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend, | |
15140 | * resume, or other times. This quirk makes sure that's the case for | |
15141 | * affected systems. | |
15142 | */ | |
0206e353 | 15143 | static void quirk_pipea_force(struct drm_device *dev) |
b690e96c JB |
15144 | { |
15145 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15146 | ||
15147 | dev_priv->quirks |= QUIRK_PIPEA_FORCE; | |
bc0daf48 | 15148 | DRM_INFO("applying pipe a force quirk\n"); |
b690e96c JB |
15149 | } |
15150 | ||
b6b5d049 VS |
15151 | static void quirk_pipeb_force(struct drm_device *dev) |
15152 | { | |
15153 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15154 | ||
15155 | dev_priv->quirks |= QUIRK_PIPEB_FORCE; | |
15156 | DRM_INFO("applying pipe b force quirk\n"); | |
15157 | } | |
15158 | ||
435793df KP |
15159 | /* |
15160 | * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason | |
15161 | */ | |
15162 | static void quirk_ssc_force_disable(struct drm_device *dev) | |
15163 | { | |
15164 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15165 | dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE; | |
bc0daf48 | 15166 | DRM_INFO("applying lvds SSC disable quirk\n"); |
435793df KP |
15167 | } |
15168 | ||
4dca20ef | 15169 | /* |
5a15ab5b CE |
15170 | * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight |
15171 | * brightness value | |
4dca20ef CE |
15172 | */ |
15173 | static void quirk_invert_brightness(struct drm_device *dev) | |
15174 | { | |
15175 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15176 | dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS; | |
bc0daf48 | 15177 | DRM_INFO("applying inverted panel brightness quirk\n"); |
435793df KP |
15178 | } |
15179 | ||
9c72cc6f SD |
15180 | /* Some VBT's incorrectly indicate no backlight is present */ |
15181 | static void quirk_backlight_present(struct drm_device *dev) | |
15182 | { | |
15183 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15184 | dev_priv->quirks |= QUIRK_BACKLIGHT_PRESENT; | |
15185 | DRM_INFO("applying backlight present quirk\n"); | |
15186 | } | |
15187 | ||
b690e96c JB |
15188 | struct intel_quirk { |
15189 | int device; | |
15190 | int subsystem_vendor; | |
15191 | int subsystem_device; | |
15192 | void (*hook)(struct drm_device *dev); | |
15193 | }; | |
15194 | ||
5f85f176 EE |
15195 | /* For systems that don't have a meaningful PCI subdevice/subvendor ID */ |
15196 | struct intel_dmi_quirk { | |
15197 | void (*hook)(struct drm_device *dev); | |
15198 | const struct dmi_system_id (*dmi_id_list)[]; | |
15199 | }; | |
15200 | ||
15201 | static int intel_dmi_reverse_brightness(const struct dmi_system_id *id) | |
15202 | { | |
15203 | DRM_INFO("Backlight polarity reversed on %s\n", id->ident); | |
15204 | return 1; | |
15205 | } | |
15206 | ||
15207 | static const struct intel_dmi_quirk intel_dmi_quirks[] = { | |
15208 | { | |
15209 | .dmi_id_list = &(const struct dmi_system_id[]) { | |
15210 | { | |
15211 | .callback = intel_dmi_reverse_brightness, | |
15212 | .ident = "NCR Corporation", | |
15213 | .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"), | |
15214 | DMI_MATCH(DMI_PRODUCT_NAME, ""), | |
15215 | }, | |
15216 | }, | |
15217 | { } /* terminating entry */ | |
15218 | }, | |
15219 | .hook = quirk_invert_brightness, | |
15220 | }, | |
15221 | }; | |
15222 | ||
c43b5634 | 15223 | static struct intel_quirk intel_quirks[] = { |
b690e96c JB |
15224 | /* Toshiba Protege R-205, S-209 needs pipe A force quirk */ |
15225 | { 0x2592, 0x1179, 0x0001, quirk_pipea_force }, | |
15226 | ||
b690e96c JB |
15227 | /* ThinkPad T60 needs pipe A force quirk (bug #16494) */ |
15228 | { 0x2782, 0x17aa, 0x201a, quirk_pipea_force }, | |
15229 | ||
5f080c0f VS |
15230 | /* 830 needs to leave pipe A & dpll A up */ |
15231 | { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, | |
15232 | ||
b6b5d049 VS |
15233 | /* 830 needs to leave pipe B & dpll B up */ |
15234 | { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipeb_force }, | |
15235 | ||
435793df KP |
15236 | /* Lenovo U160 cannot use SSC on LVDS */ |
15237 | { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable }, | |
070d329a MAS |
15238 | |
15239 | /* Sony Vaio Y cannot use SSC on LVDS */ | |
15240 | { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable }, | |
5a15ab5b | 15241 | |
be505f64 AH |
15242 | /* Acer Aspire 5734Z must invert backlight brightness */ |
15243 | { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness }, | |
15244 | ||
15245 | /* Acer/eMachines G725 */ | |
15246 | { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness }, | |
15247 | ||
15248 | /* Acer/eMachines e725 */ | |
15249 | { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness }, | |
15250 | ||
15251 | /* Acer/Packard Bell NCL20 */ | |
15252 | { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness }, | |
15253 | ||
15254 | /* Acer Aspire 4736Z */ | |
15255 | { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness }, | |
0f540c3a JN |
15256 | |
15257 | /* Acer Aspire 5336 */ | |
15258 | { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness }, | |
2e93a1aa SD |
15259 | |
15260 | /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */ | |
15261 | { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present }, | |
d4967d8c | 15262 | |
dfb3d47b SD |
15263 | /* Acer C720 Chromebook (Core i3 4005U) */ |
15264 | { 0x0a16, 0x1025, 0x0a11, quirk_backlight_present }, | |
15265 | ||
b2a9601c | 15266 | /* Apple Macbook 2,1 (Core 2 T7400) */ |
15267 | { 0x27a2, 0x8086, 0x7270, quirk_backlight_present }, | |
15268 | ||
1b9448b0 JN |
15269 | /* Apple Macbook 4,1 */ |
15270 | { 0x2a02, 0x106b, 0x00a1, quirk_backlight_present }, | |
15271 | ||
d4967d8c SD |
15272 | /* Toshiba CB35 Chromebook (Celeron 2955U) */ |
15273 | { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present }, | |
724cb06f SD |
15274 | |
15275 | /* HP Chromebook 14 (Celeron 2955U) */ | |
15276 | { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present }, | |
cf6f0af9 JN |
15277 | |
15278 | /* Dell Chromebook 11 */ | |
15279 | { 0x0a06, 0x1028, 0x0a35, quirk_backlight_present }, | |
9be64eee JN |
15280 | |
15281 | /* Dell Chromebook 11 (2015 version) */ | |
15282 | { 0x0a16, 0x1028, 0x0a35, quirk_backlight_present }, | |
b690e96c JB |
15283 | }; |
15284 | ||
15285 | static void intel_init_quirks(struct drm_device *dev) | |
15286 | { | |
15287 | struct pci_dev *d = dev->pdev; | |
15288 | int i; | |
15289 | ||
15290 | for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { | |
15291 | struct intel_quirk *q = &intel_quirks[i]; | |
15292 | ||
15293 | if (d->device == q->device && | |
15294 | (d->subsystem_vendor == q->subsystem_vendor || | |
15295 | q->subsystem_vendor == PCI_ANY_ID) && | |
15296 | (d->subsystem_device == q->subsystem_device || | |
15297 | q->subsystem_device == PCI_ANY_ID)) | |
15298 | q->hook(dev); | |
15299 | } | |
5f85f176 EE |
15300 | for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) { |
15301 | if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0) | |
15302 | intel_dmi_quirks[i].hook(dev); | |
15303 | } | |
b690e96c JB |
15304 | } |
15305 | ||
9cce37f4 JB |
15306 | /* Disable the VGA plane that we never use */ |
15307 | static void i915_disable_vga(struct drm_device *dev) | |
15308 | { | |
15309 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15310 | u8 sr1; | |
f0f59a00 | 15311 | i915_reg_t vga_reg = i915_vgacntrl_reg(dev); |
9cce37f4 | 15312 | |
2b37c616 | 15313 | /* WaEnableVGAAccessThroughIOPort:ctg,elk,ilk,snb,ivb,vlv,hsw */ |
9cce37f4 | 15314 | vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO); |
3fdcf431 | 15315 | outb(SR01, VGA_SR_INDEX); |
9cce37f4 JB |
15316 | sr1 = inb(VGA_SR_DATA); |
15317 | outb(sr1 | 1<<5, VGA_SR_DATA); | |
15318 | vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); | |
15319 | udelay(300); | |
15320 | ||
01f5a626 | 15321 | I915_WRITE(vga_reg, VGA_DISP_DISABLE); |
9cce37f4 JB |
15322 | POSTING_READ(vga_reg); |
15323 | } | |
15324 | ||
f817586c DV |
15325 | void intel_modeset_init_hw(struct drm_device *dev) |
15326 | { | |
1a617b77 ML |
15327 | struct drm_i915_private *dev_priv = dev->dev_private; |
15328 | ||
b6283055 | 15329 | intel_update_cdclk(dev); |
1a617b77 ML |
15330 | |
15331 | dev_priv->atomic_cdclk_freq = dev_priv->cdclk_freq; | |
15332 | ||
f817586c | 15333 | intel_init_clock_gating(dev); |
8090c6b9 | 15334 | intel_enable_gt_powersave(dev); |
f817586c DV |
15335 | } |
15336 | ||
d93c0372 MR |
15337 | /* |
15338 | * Calculate what we think the watermarks should be for the state we've read | |
15339 | * out of the hardware and then immediately program those watermarks so that | |
15340 | * we ensure the hardware settings match our internal state. | |
15341 | * | |
15342 | * We can calculate what we think WM's should be by creating a duplicate of the | |
15343 | * current state (which was constructed during hardware readout) and running it | |
15344 | * through the atomic check code to calculate new watermark values in the | |
15345 | * state object. | |
15346 | */ | |
15347 | static void sanitize_watermarks(struct drm_device *dev) | |
15348 | { | |
15349 | struct drm_i915_private *dev_priv = to_i915(dev); | |
15350 | struct drm_atomic_state *state; | |
15351 | struct drm_crtc *crtc; | |
15352 | struct drm_crtc_state *cstate; | |
15353 | struct drm_modeset_acquire_ctx ctx; | |
15354 | int ret; | |
15355 | int i; | |
15356 | ||
15357 | /* Only supported on platforms that use atomic watermark design */ | |
ed4a6a7c | 15358 | if (!dev_priv->display.optimize_watermarks) |
d93c0372 MR |
15359 | return; |
15360 | ||
15361 | /* | |
15362 | * We need to hold connection_mutex before calling duplicate_state so | |
15363 | * that the connector loop is protected. | |
15364 | */ | |
15365 | drm_modeset_acquire_init(&ctx, 0); | |
15366 | retry: | |
0cd1262d | 15367 | ret = drm_modeset_lock_all_ctx(dev, &ctx); |
d93c0372 MR |
15368 | if (ret == -EDEADLK) { |
15369 | drm_modeset_backoff(&ctx); | |
15370 | goto retry; | |
15371 | } else if (WARN_ON(ret)) { | |
0cd1262d | 15372 | goto fail; |
d93c0372 MR |
15373 | } |
15374 | ||
15375 | state = drm_atomic_helper_duplicate_state(dev, &ctx); | |
15376 | if (WARN_ON(IS_ERR(state))) | |
0cd1262d | 15377 | goto fail; |
d93c0372 | 15378 | |
ed4a6a7c MR |
15379 | /* |
15380 | * Hardware readout is the only time we don't want to calculate | |
15381 | * intermediate watermarks (since we don't trust the current | |
15382 | * watermarks). | |
15383 | */ | |
15384 | to_intel_atomic_state(state)->skip_intermediate_wm = true; | |
15385 | ||
d93c0372 MR |
15386 | ret = intel_atomic_check(dev, state); |
15387 | if (ret) { | |
15388 | /* | |
15389 | * If we fail here, it means that the hardware appears to be | |
15390 | * programmed in a way that shouldn't be possible, given our | |
15391 | * understanding of watermark requirements. This might mean a | |
15392 | * mistake in the hardware readout code or a mistake in the | |
15393 | * watermark calculations for a given platform. Raise a WARN | |
15394 | * so that this is noticeable. | |
15395 | * | |
15396 | * If this actually happens, we'll have to just leave the | |
15397 | * BIOS-programmed watermarks untouched and hope for the best. | |
15398 | */ | |
15399 | WARN(true, "Could not determine valid watermarks for inherited state\n"); | |
0cd1262d | 15400 | goto fail; |
d93c0372 MR |
15401 | } |
15402 | ||
15403 | /* Write calculated watermark values back */ | |
15404 | to_i915(dev)->wm.config = to_intel_atomic_state(state)->wm_config; | |
15405 | for_each_crtc_in_state(state, crtc, cstate, i) { | |
15406 | struct intel_crtc_state *cs = to_intel_crtc_state(cstate); | |
15407 | ||
ed4a6a7c MR |
15408 | cs->wm.need_postvbl_update = true; |
15409 | dev_priv->display.optimize_watermarks(cs); | |
d93c0372 MR |
15410 | } |
15411 | ||
15412 | drm_atomic_state_free(state); | |
0cd1262d | 15413 | fail: |
d93c0372 MR |
15414 | drm_modeset_drop_locks(&ctx); |
15415 | drm_modeset_acquire_fini(&ctx); | |
15416 | } | |
15417 | ||
79e53945 JB |
15418 | void intel_modeset_init(struct drm_device *dev) |
15419 | { | |
72e96d64 JL |
15420 | struct drm_i915_private *dev_priv = to_i915(dev); |
15421 | struct i915_ggtt *ggtt = &dev_priv->ggtt; | |
1fe47785 | 15422 | int sprite, ret; |
8cc87b75 | 15423 | enum pipe pipe; |
46f297fb | 15424 | struct intel_crtc *crtc; |
79e53945 JB |
15425 | |
15426 | drm_mode_config_init(dev); | |
15427 | ||
15428 | dev->mode_config.min_width = 0; | |
15429 | dev->mode_config.min_height = 0; | |
15430 | ||
019d96cb DA |
15431 | dev->mode_config.preferred_depth = 24; |
15432 | dev->mode_config.prefer_shadow = 1; | |
15433 | ||
25bab385 TU |
15434 | dev->mode_config.allow_fb_modifiers = true; |
15435 | ||
e6ecefaa | 15436 | dev->mode_config.funcs = &intel_mode_funcs; |
79e53945 | 15437 | |
b690e96c JB |
15438 | intel_init_quirks(dev); |
15439 | ||
1fa61106 ED |
15440 | intel_init_pm(dev); |
15441 | ||
e3c74757 BW |
15442 | if (INTEL_INFO(dev)->num_pipes == 0) |
15443 | return; | |
15444 | ||
69f92f67 LW |
15445 | /* |
15446 | * There may be no VBT; and if the BIOS enabled SSC we can | |
15447 | * just keep using it to avoid unnecessary flicker. Whereas if the | |
15448 | * BIOS isn't using it, don't assume it will work even if the VBT | |
15449 | * indicates as much. | |
15450 | */ | |
15451 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) { | |
15452 | bool bios_lvds_use_ssc = !!(I915_READ(PCH_DREF_CONTROL) & | |
15453 | DREF_SSC1_ENABLE); | |
15454 | ||
15455 | if (dev_priv->vbt.lvds_use_ssc != bios_lvds_use_ssc) { | |
15456 | DRM_DEBUG_KMS("SSC %sabled by BIOS, overriding VBT which says %sabled\n", | |
15457 | bios_lvds_use_ssc ? "en" : "dis", | |
15458 | dev_priv->vbt.lvds_use_ssc ? "en" : "dis"); | |
15459 | dev_priv->vbt.lvds_use_ssc = bios_lvds_use_ssc; | |
15460 | } | |
15461 | } | |
15462 | ||
a6c45cf0 CW |
15463 | if (IS_GEN2(dev)) { |
15464 | dev->mode_config.max_width = 2048; | |
15465 | dev->mode_config.max_height = 2048; | |
15466 | } else if (IS_GEN3(dev)) { | |
5e4d6fa7 KP |
15467 | dev->mode_config.max_width = 4096; |
15468 | dev->mode_config.max_height = 4096; | |
79e53945 | 15469 | } else { |
a6c45cf0 CW |
15470 | dev->mode_config.max_width = 8192; |
15471 | dev->mode_config.max_height = 8192; | |
79e53945 | 15472 | } |
068be561 | 15473 | |
dc41c154 VS |
15474 | if (IS_845G(dev) || IS_I865G(dev)) { |
15475 | dev->mode_config.cursor_width = IS_845G(dev) ? 64 : 512; | |
15476 | dev->mode_config.cursor_height = 1023; | |
15477 | } else if (IS_GEN2(dev)) { | |
068be561 DL |
15478 | dev->mode_config.cursor_width = GEN2_CURSOR_WIDTH; |
15479 | dev->mode_config.cursor_height = GEN2_CURSOR_HEIGHT; | |
15480 | } else { | |
15481 | dev->mode_config.cursor_width = MAX_CURSOR_WIDTH; | |
15482 | dev->mode_config.cursor_height = MAX_CURSOR_HEIGHT; | |
15483 | } | |
15484 | ||
72e96d64 | 15485 | dev->mode_config.fb_base = ggtt->mappable_base; |
79e53945 | 15486 | |
28c97730 | 15487 | DRM_DEBUG_KMS("%d display pipe%s available.\n", |
7eb552ae BW |
15488 | INTEL_INFO(dev)->num_pipes, |
15489 | INTEL_INFO(dev)->num_pipes > 1 ? "s" : ""); | |
79e53945 | 15490 | |
055e393f | 15491 | for_each_pipe(dev_priv, pipe) { |
8cc87b75 | 15492 | intel_crtc_init(dev, pipe); |
3bdcfc0c | 15493 | for_each_sprite(dev_priv, pipe, sprite) { |
1fe47785 | 15494 | ret = intel_plane_init(dev, pipe, sprite); |
7f1f3851 | 15495 | if (ret) |
06da8da2 | 15496 | DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n", |
1fe47785 | 15497 | pipe_name(pipe), sprite_name(pipe, sprite), ret); |
7f1f3851 | 15498 | } |
79e53945 JB |
15499 | } |
15500 | ||
bfa7df01 | 15501 | intel_update_czclk(dev_priv); |
e7dc33f3 | 15502 | intel_update_rawclk(dev_priv); |
bfa7df01 VS |
15503 | intel_update_cdclk(dev); |
15504 | ||
e72f9fbf | 15505 | intel_shared_dpll_init(dev); |
ee7b9f93 | 15506 | |
9cce37f4 JB |
15507 | /* Just disable it once at startup */ |
15508 | i915_disable_vga(dev); | |
79e53945 | 15509 | intel_setup_outputs(dev); |
11be49eb | 15510 | |
6e9f798d | 15511 | drm_modeset_lock_all(dev); |
043e9bda | 15512 | intel_modeset_setup_hw_state(dev); |
6e9f798d | 15513 | drm_modeset_unlock_all(dev); |
46f297fb | 15514 | |
d3fcc808 | 15515 | for_each_intel_crtc(dev, crtc) { |
eeebeac5 ML |
15516 | struct intel_initial_plane_config plane_config = {}; |
15517 | ||
46f297fb JB |
15518 | if (!crtc->active) |
15519 | continue; | |
15520 | ||
46f297fb | 15521 | /* |
46f297fb JB |
15522 | * Note that reserving the BIOS fb up front prevents us |
15523 | * from stuffing other stolen allocations like the ring | |
15524 | * on top. This prevents some ugliness at boot time, and | |
15525 | * can even allow for smooth boot transitions if the BIOS | |
15526 | * fb is large enough for the active pipe configuration. | |
15527 | */ | |
eeebeac5 ML |
15528 | dev_priv->display.get_initial_plane_config(crtc, |
15529 | &plane_config); | |
15530 | ||
15531 | /* | |
15532 | * If the fb is shared between multiple heads, we'll | |
15533 | * just get the first one. | |
15534 | */ | |
15535 | intel_find_initial_plane_obj(crtc, &plane_config); | |
46f297fb | 15536 | } |
d93c0372 MR |
15537 | |
15538 | /* | |
15539 | * Make sure hardware watermarks really match the state we read out. | |
15540 | * Note that we need to do this after reconstructing the BIOS fb's | |
15541 | * since the watermark calculation done here will use pstate->fb. | |
15542 | */ | |
15543 | sanitize_watermarks(dev); | |
2c7111db CW |
15544 | } |
15545 | ||
7fad798e DV |
15546 | static void intel_enable_pipe_a(struct drm_device *dev) |
15547 | { | |
15548 | struct intel_connector *connector; | |
15549 | struct drm_connector *crt = NULL; | |
15550 | struct intel_load_detect_pipe load_detect_temp; | |
208bf9fd | 15551 | struct drm_modeset_acquire_ctx *ctx = dev->mode_config.acquire_ctx; |
7fad798e DV |
15552 | |
15553 | /* We can't just switch on the pipe A, we need to set things up with a | |
15554 | * proper mode and output configuration. As a gross hack, enable pipe A | |
15555 | * by enabling the load detect pipe once. */ | |
3a3371ff | 15556 | for_each_intel_connector(dev, connector) { |
7fad798e DV |
15557 | if (connector->encoder->type == INTEL_OUTPUT_ANALOG) { |
15558 | crt = &connector->base; | |
15559 | break; | |
15560 | } | |
15561 | } | |
15562 | ||
15563 | if (!crt) | |
15564 | return; | |
15565 | ||
208bf9fd | 15566 | if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp, ctx)) |
49172fee | 15567 | intel_release_load_detect_pipe(crt, &load_detect_temp, ctx); |
7fad798e DV |
15568 | } |
15569 | ||
fa555837 DV |
15570 | static bool |
15571 | intel_check_plane_mapping(struct intel_crtc *crtc) | |
15572 | { | |
7eb552ae BW |
15573 | struct drm_device *dev = crtc->base.dev; |
15574 | struct drm_i915_private *dev_priv = dev->dev_private; | |
649636ef | 15575 | u32 val; |
fa555837 | 15576 | |
7eb552ae | 15577 | if (INTEL_INFO(dev)->num_pipes == 1) |
fa555837 DV |
15578 | return true; |
15579 | ||
649636ef | 15580 | val = I915_READ(DSPCNTR(!crtc->plane)); |
fa555837 DV |
15581 | |
15582 | if ((val & DISPLAY_PLANE_ENABLE) && | |
15583 | (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe)) | |
15584 | return false; | |
15585 | ||
15586 | return true; | |
15587 | } | |
15588 | ||
02e93c35 VS |
15589 | static bool intel_crtc_has_encoders(struct intel_crtc *crtc) |
15590 | { | |
15591 | struct drm_device *dev = crtc->base.dev; | |
15592 | struct intel_encoder *encoder; | |
15593 | ||
15594 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) | |
15595 | return true; | |
15596 | ||
15597 | return false; | |
15598 | } | |
15599 | ||
dd756198 VS |
15600 | static bool intel_encoder_has_connectors(struct intel_encoder *encoder) |
15601 | { | |
15602 | struct drm_device *dev = encoder->base.dev; | |
15603 | struct intel_connector *connector; | |
15604 | ||
15605 | for_each_connector_on_encoder(dev, &encoder->base, connector) | |
15606 | return true; | |
15607 | ||
15608 | return false; | |
15609 | } | |
15610 | ||
24929352 DV |
15611 | static void intel_sanitize_crtc(struct intel_crtc *crtc) |
15612 | { | |
15613 | struct drm_device *dev = crtc->base.dev; | |
15614 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4d1de975 | 15615 | enum transcoder cpu_transcoder = crtc->config->cpu_transcoder; |
24929352 | 15616 | |
24929352 | 15617 | /* Clear any frame start delays used for debugging left by the BIOS */ |
4d1de975 JN |
15618 | if (!transcoder_is_dsi(cpu_transcoder)) { |
15619 | i915_reg_t reg = PIPECONF(cpu_transcoder); | |
15620 | ||
15621 | I915_WRITE(reg, | |
15622 | I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK); | |
15623 | } | |
24929352 | 15624 | |
d3eaf884 | 15625 | /* restore vblank interrupts to correct state */ |
9625604c | 15626 | drm_crtc_vblank_reset(&crtc->base); |
d297e103 | 15627 | if (crtc->active) { |
f9cd7b88 VS |
15628 | struct intel_plane *plane; |
15629 | ||
9625604c | 15630 | drm_crtc_vblank_on(&crtc->base); |
f9cd7b88 VS |
15631 | |
15632 | /* Disable everything but the primary plane */ | |
15633 | for_each_intel_plane_on_crtc(dev, crtc, plane) { | |
15634 | if (plane->base.type == DRM_PLANE_TYPE_PRIMARY) | |
15635 | continue; | |
15636 | ||
15637 | plane->disable_plane(&plane->base, &crtc->base); | |
15638 | } | |
9625604c | 15639 | } |
d3eaf884 | 15640 | |
24929352 | 15641 | /* We need to sanitize the plane -> pipe mapping first because this will |
fa555837 DV |
15642 | * disable the crtc (and hence change the state) if it is wrong. Note |
15643 | * that gen4+ has a fixed plane -> pipe mapping. */ | |
15644 | if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) { | |
24929352 DV |
15645 | bool plane; |
15646 | ||
24929352 DV |
15647 | DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n", |
15648 | crtc->base.base.id); | |
15649 | ||
15650 | /* Pipe has the wrong plane attached and the plane is active. | |
15651 | * Temporarily change the plane mapping and disable everything | |
15652 | * ... */ | |
15653 | plane = crtc->plane; | |
b70709a6 | 15654 | to_intel_plane_state(crtc->base.primary->state)->visible = true; |
24929352 | 15655 | crtc->plane = !plane; |
b17d48e2 | 15656 | intel_crtc_disable_noatomic(&crtc->base); |
24929352 | 15657 | crtc->plane = plane; |
24929352 | 15658 | } |
24929352 | 15659 | |
7fad798e DV |
15660 | if (dev_priv->quirks & QUIRK_PIPEA_FORCE && |
15661 | crtc->pipe == PIPE_A && !crtc->active) { | |
15662 | /* BIOS forgot to enable pipe A, this mostly happens after | |
15663 | * resume. Force-enable the pipe to fix this, the update_dpms | |
15664 | * call below we restore the pipe to the right state, but leave | |
15665 | * the required bits on. */ | |
15666 | intel_enable_pipe_a(dev); | |
15667 | } | |
15668 | ||
24929352 DV |
15669 | /* Adjust the state of the output pipe according to whether we |
15670 | * have active connectors/encoders. */ | |
842e0307 | 15671 | if (crtc->active && !intel_crtc_has_encoders(crtc)) |
b17d48e2 | 15672 | intel_crtc_disable_noatomic(&crtc->base); |
24929352 | 15673 | |
a3ed6aad | 15674 | if (crtc->active || HAS_GMCH_DISPLAY(dev)) { |
4cc31489 DV |
15675 | /* |
15676 | * We start out with underrun reporting disabled to avoid races. | |
15677 | * For correct bookkeeping mark this on active crtcs. | |
15678 | * | |
c5ab3bc0 DV |
15679 | * Also on gmch platforms we dont have any hardware bits to |
15680 | * disable the underrun reporting. Which means we need to start | |
15681 | * out with underrun reporting disabled also on inactive pipes, | |
15682 | * since otherwise we'll complain about the garbage we read when | |
15683 | * e.g. coming up after runtime pm. | |
15684 | * | |
4cc31489 DV |
15685 | * No protection against concurrent access is required - at |
15686 | * worst a fifo underrun happens which also sets this to false. | |
15687 | */ | |
15688 | crtc->cpu_fifo_underrun_disabled = true; | |
15689 | crtc->pch_fifo_underrun_disabled = true; | |
15690 | } | |
24929352 DV |
15691 | } |
15692 | ||
15693 | static void intel_sanitize_encoder(struct intel_encoder *encoder) | |
15694 | { | |
15695 | struct intel_connector *connector; | |
15696 | struct drm_device *dev = encoder->base.dev; | |
15697 | ||
15698 | /* We need to check both for a crtc link (meaning that the | |
15699 | * encoder is active and trying to read from a pipe) and the | |
15700 | * pipe itself being active. */ | |
15701 | bool has_active_crtc = encoder->base.crtc && | |
15702 | to_intel_crtc(encoder->base.crtc)->active; | |
15703 | ||
dd756198 | 15704 | if (intel_encoder_has_connectors(encoder) && !has_active_crtc) { |
24929352 DV |
15705 | DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n", |
15706 | encoder->base.base.id, | |
8e329a03 | 15707 | encoder->base.name); |
24929352 DV |
15708 | |
15709 | /* Connector is active, but has no active pipe. This is | |
15710 | * fallout from our resume register restoring. Disable | |
15711 | * the encoder manually again. */ | |
15712 | if (encoder->base.crtc) { | |
15713 | DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n", | |
15714 | encoder->base.base.id, | |
8e329a03 | 15715 | encoder->base.name); |
24929352 | 15716 | encoder->disable(encoder); |
a62d1497 VS |
15717 | if (encoder->post_disable) |
15718 | encoder->post_disable(encoder); | |
24929352 | 15719 | } |
7f1950fb | 15720 | encoder->base.crtc = NULL; |
24929352 DV |
15721 | |
15722 | /* Inconsistent output/port/pipe state happens presumably due to | |
15723 | * a bug in one of the get_hw_state functions. Or someplace else | |
15724 | * in our code, like the register restore mess on resume. Clamp | |
15725 | * things to off as a safer default. */ | |
3a3371ff | 15726 | for_each_intel_connector(dev, connector) { |
24929352 DV |
15727 | if (connector->encoder != encoder) |
15728 | continue; | |
7f1950fb EE |
15729 | connector->base.dpms = DRM_MODE_DPMS_OFF; |
15730 | connector->base.encoder = NULL; | |
24929352 DV |
15731 | } |
15732 | } | |
15733 | /* Enabled encoders without active connectors will be fixed in | |
15734 | * the crtc fixup. */ | |
15735 | } | |
15736 | ||
04098753 | 15737 | void i915_redisable_vga_power_on(struct drm_device *dev) |
0fde901f KM |
15738 | { |
15739 | struct drm_i915_private *dev_priv = dev->dev_private; | |
f0f59a00 | 15740 | i915_reg_t vga_reg = i915_vgacntrl_reg(dev); |
0fde901f | 15741 | |
04098753 ID |
15742 | if (!(I915_READ(vga_reg) & VGA_DISP_DISABLE)) { |
15743 | DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n"); | |
15744 | i915_disable_vga(dev); | |
15745 | } | |
15746 | } | |
15747 | ||
15748 | void i915_redisable_vga(struct drm_device *dev) | |
15749 | { | |
15750 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15751 | ||
8dc8a27c PZ |
15752 | /* This function can be called both from intel_modeset_setup_hw_state or |
15753 | * at a very early point in our resume sequence, where the power well | |
15754 | * structures are not yet restored. Since this function is at a very | |
15755 | * paranoid "someone might have enabled VGA while we were not looking" | |
15756 | * level, just check if the power well is enabled instead of trying to | |
15757 | * follow the "don't touch the power well if we don't need it" policy | |
15758 | * the rest of the driver uses. */ | |
6392f847 | 15759 | if (!intel_display_power_get_if_enabled(dev_priv, POWER_DOMAIN_VGA)) |
8dc8a27c PZ |
15760 | return; |
15761 | ||
04098753 | 15762 | i915_redisable_vga_power_on(dev); |
6392f847 ID |
15763 | |
15764 | intel_display_power_put(dev_priv, POWER_DOMAIN_VGA); | |
0fde901f KM |
15765 | } |
15766 | ||
f9cd7b88 | 15767 | static bool primary_get_hw_state(struct intel_plane *plane) |
98ec7739 | 15768 | { |
f9cd7b88 | 15769 | struct drm_i915_private *dev_priv = to_i915(plane->base.dev); |
98ec7739 | 15770 | |
f9cd7b88 | 15771 | return I915_READ(DSPCNTR(plane->plane)) & DISPLAY_PLANE_ENABLE; |
d032ffa0 ML |
15772 | } |
15773 | ||
f9cd7b88 VS |
15774 | /* FIXME read out full plane state for all planes */ |
15775 | static void readout_plane_state(struct intel_crtc *crtc) | |
d032ffa0 | 15776 | { |
b26d3ea3 | 15777 | struct drm_plane *primary = crtc->base.primary; |
f9cd7b88 | 15778 | struct intel_plane_state *plane_state = |
b26d3ea3 | 15779 | to_intel_plane_state(primary->state); |
d032ffa0 | 15780 | |
19b8d387 | 15781 | plane_state->visible = crtc->active && |
b26d3ea3 ML |
15782 | primary_get_hw_state(to_intel_plane(primary)); |
15783 | ||
15784 | if (plane_state->visible) | |
15785 | crtc->base.state->plane_mask |= 1 << drm_plane_index(primary); | |
98ec7739 VS |
15786 | } |
15787 | ||
30e984df | 15788 | static void intel_modeset_readout_hw_state(struct drm_device *dev) |
24929352 DV |
15789 | { |
15790 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15791 | enum pipe pipe; | |
24929352 DV |
15792 | struct intel_crtc *crtc; |
15793 | struct intel_encoder *encoder; | |
15794 | struct intel_connector *connector; | |
5358901f | 15795 | int i; |
24929352 | 15796 | |
565602d7 ML |
15797 | dev_priv->active_crtcs = 0; |
15798 | ||
d3fcc808 | 15799 | for_each_intel_crtc(dev, crtc) { |
565602d7 ML |
15800 | struct intel_crtc_state *crtc_state = crtc->config; |
15801 | int pixclk = 0; | |
3b117c8f | 15802 | |
ec2dc6a0 | 15803 | __drm_atomic_helper_crtc_destroy_state(&crtc_state->base); |
565602d7 ML |
15804 | memset(crtc_state, 0, sizeof(*crtc_state)); |
15805 | crtc_state->base.crtc = &crtc->base; | |
24929352 | 15806 | |
565602d7 ML |
15807 | crtc_state->base.active = crtc_state->base.enable = |
15808 | dev_priv->display.get_pipe_config(crtc, crtc_state); | |
15809 | ||
15810 | crtc->base.enabled = crtc_state->base.enable; | |
15811 | crtc->active = crtc_state->base.active; | |
15812 | ||
15813 | if (crtc_state->base.active) { | |
15814 | dev_priv->active_crtcs |= 1 << crtc->pipe; | |
15815 | ||
15816 | if (IS_BROADWELL(dev_priv)) { | |
15817 | pixclk = ilk_pipe_pixel_rate(crtc_state); | |
15818 | ||
15819 | /* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */ | |
15820 | if (crtc_state->ips_enabled) | |
15821 | pixclk = DIV_ROUND_UP(pixclk * 100, 95); | |
15822 | } else if (IS_VALLEYVIEW(dev_priv) || | |
15823 | IS_CHERRYVIEW(dev_priv) || | |
15824 | IS_BROXTON(dev_priv)) | |
15825 | pixclk = crtc_state->base.adjusted_mode.crtc_clock; | |
15826 | else | |
15827 | WARN_ON(dev_priv->display.modeset_calc_cdclk); | |
15828 | } | |
15829 | ||
15830 | dev_priv->min_pixclk[crtc->pipe] = pixclk; | |
b70709a6 | 15831 | |
f9cd7b88 | 15832 | readout_plane_state(crtc); |
24929352 DV |
15833 | |
15834 | DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n", | |
15835 | crtc->base.base.id, | |
15836 | crtc->active ? "enabled" : "disabled"); | |
15837 | } | |
15838 | ||
5358901f DV |
15839 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
15840 | struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i]; | |
15841 | ||
2edd6443 ACO |
15842 | pll->on = pll->funcs.get_hw_state(dev_priv, pll, |
15843 | &pll->config.hw_state); | |
3e369b76 | 15844 | pll->config.crtc_mask = 0; |
d3fcc808 | 15845 | for_each_intel_crtc(dev, crtc) { |
2dd66ebd | 15846 | if (crtc->active && crtc->config->shared_dpll == pll) |
3e369b76 | 15847 | pll->config.crtc_mask |= 1 << crtc->pipe; |
5358901f | 15848 | } |
2dd66ebd | 15849 | pll->active_mask = pll->config.crtc_mask; |
5358901f | 15850 | |
1e6f2ddc | 15851 | DRM_DEBUG_KMS("%s hw state readout: crtc_mask 0x%08x, on %i\n", |
3e369b76 | 15852 | pll->name, pll->config.crtc_mask, pll->on); |
5358901f DV |
15853 | } |
15854 | ||
b2784e15 | 15855 | for_each_intel_encoder(dev, encoder) { |
24929352 DV |
15856 | pipe = 0; |
15857 | ||
15858 | if (encoder->get_hw_state(encoder, &pipe)) { | |
045ac3b5 JB |
15859 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); |
15860 | encoder->base.crtc = &crtc->base; | |
6e3c9717 | 15861 | encoder->get_config(encoder, crtc->config); |
24929352 DV |
15862 | } else { |
15863 | encoder->base.crtc = NULL; | |
15864 | } | |
15865 | ||
6f2bcceb | 15866 | DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n", |
24929352 | 15867 | encoder->base.base.id, |
8e329a03 | 15868 | encoder->base.name, |
24929352 | 15869 | encoder->base.crtc ? "enabled" : "disabled", |
6f2bcceb | 15870 | pipe_name(pipe)); |
24929352 DV |
15871 | } |
15872 | ||
3a3371ff | 15873 | for_each_intel_connector(dev, connector) { |
24929352 DV |
15874 | if (connector->get_hw_state(connector)) { |
15875 | connector->base.dpms = DRM_MODE_DPMS_ON; | |
2aa974c9 ML |
15876 | |
15877 | encoder = connector->encoder; | |
15878 | connector->base.encoder = &encoder->base; | |
15879 | ||
15880 | if (encoder->base.crtc && | |
15881 | encoder->base.crtc->state->active) { | |
15882 | /* | |
15883 | * This has to be done during hardware readout | |
15884 | * because anything calling .crtc_disable may | |
15885 | * rely on the connector_mask being accurate. | |
15886 | */ | |
15887 | encoder->base.crtc->state->connector_mask |= | |
15888 | 1 << drm_connector_index(&connector->base); | |
e87a52b3 ML |
15889 | encoder->base.crtc->state->encoder_mask |= |
15890 | 1 << drm_encoder_index(&encoder->base); | |
2aa974c9 ML |
15891 | } |
15892 | ||
24929352 DV |
15893 | } else { |
15894 | connector->base.dpms = DRM_MODE_DPMS_OFF; | |
15895 | connector->base.encoder = NULL; | |
15896 | } | |
15897 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n", | |
15898 | connector->base.base.id, | |
c23cc417 | 15899 | connector->base.name, |
24929352 DV |
15900 | connector->base.encoder ? "enabled" : "disabled"); |
15901 | } | |
7f4c6284 VS |
15902 | |
15903 | for_each_intel_crtc(dev, crtc) { | |
15904 | crtc->base.hwmode = crtc->config->base.adjusted_mode; | |
15905 | ||
15906 | memset(&crtc->base.mode, 0, sizeof(crtc->base.mode)); | |
15907 | if (crtc->base.state->active) { | |
15908 | intel_mode_from_pipe_config(&crtc->base.mode, crtc->config); | |
15909 | intel_mode_from_pipe_config(&crtc->base.state->adjusted_mode, crtc->config); | |
15910 | WARN_ON(drm_atomic_set_mode_for_crtc(crtc->base.state, &crtc->base.mode)); | |
15911 | ||
15912 | /* | |
15913 | * The initial mode needs to be set in order to keep | |
15914 | * the atomic core happy. It wants a valid mode if the | |
15915 | * crtc's enabled, so we do the above call. | |
15916 | * | |
15917 | * At this point some state updated by the connectors | |
15918 | * in their ->detect() callback has not run yet, so | |
15919 | * no recalculation can be done yet. | |
15920 | * | |
15921 | * Even if we could do a recalculation and modeset | |
15922 | * right now it would cause a double modeset if | |
15923 | * fbdev or userspace chooses a different initial mode. | |
15924 | * | |
15925 | * If that happens, someone indicated they wanted a | |
15926 | * mode change, which means it's safe to do a full | |
15927 | * recalculation. | |
15928 | */ | |
15929 | crtc->base.state->mode.private_flags = I915_MODE_FLAG_INHERITED; | |
9eca6832 VS |
15930 | |
15931 | drm_calc_timestamping_constants(&crtc->base, &crtc->base.hwmode); | |
15932 | update_scanline_offset(crtc); | |
7f4c6284 | 15933 | } |
e3b247da VS |
15934 | |
15935 | intel_pipe_config_sanity_check(dev_priv, crtc->config); | |
7f4c6284 | 15936 | } |
30e984df DV |
15937 | } |
15938 | ||
043e9bda ML |
15939 | /* Scan out the current hw modeset state, |
15940 | * and sanitizes it to the current state | |
15941 | */ | |
15942 | static void | |
15943 | intel_modeset_setup_hw_state(struct drm_device *dev) | |
30e984df DV |
15944 | { |
15945 | struct drm_i915_private *dev_priv = dev->dev_private; | |
15946 | enum pipe pipe; | |
30e984df DV |
15947 | struct intel_crtc *crtc; |
15948 | struct intel_encoder *encoder; | |
35c95375 | 15949 | int i; |
30e984df DV |
15950 | |
15951 | intel_modeset_readout_hw_state(dev); | |
24929352 DV |
15952 | |
15953 | /* HW state is read out, now we need to sanitize this mess. */ | |
b2784e15 | 15954 | for_each_intel_encoder(dev, encoder) { |
24929352 DV |
15955 | intel_sanitize_encoder(encoder); |
15956 | } | |
15957 | ||
055e393f | 15958 | for_each_pipe(dev_priv, pipe) { |
24929352 DV |
15959 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); |
15960 | intel_sanitize_crtc(crtc); | |
6e3c9717 ACO |
15961 | intel_dump_pipe_config(crtc, crtc->config, |
15962 | "[setup_hw_state]"); | |
24929352 | 15963 | } |
9a935856 | 15964 | |
d29b2f9d ACO |
15965 | intel_modeset_update_connector_atomic_state(dev); |
15966 | ||
35c95375 DV |
15967 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
15968 | struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i]; | |
15969 | ||
2dd66ebd | 15970 | if (!pll->on || pll->active_mask) |
35c95375 DV |
15971 | continue; |
15972 | ||
15973 | DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll->name); | |
15974 | ||
2edd6443 | 15975 | pll->funcs.disable(dev_priv, pll); |
35c95375 DV |
15976 | pll->on = false; |
15977 | } | |
15978 | ||
666a4537 | 15979 | if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) |
6eb1a681 VS |
15980 | vlv_wm_get_hw_state(dev); |
15981 | else if (IS_GEN9(dev)) | |
3078999f PB |
15982 | skl_wm_get_hw_state(dev); |
15983 | else if (HAS_PCH_SPLIT(dev)) | |
243e6a44 | 15984 | ilk_wm_get_hw_state(dev); |
292b990e ML |
15985 | |
15986 | for_each_intel_crtc(dev, crtc) { | |
15987 | unsigned long put_domains; | |
15988 | ||
74bff5f9 | 15989 | put_domains = modeset_get_crtc_power_domains(&crtc->base, crtc->config); |
292b990e ML |
15990 | if (WARN_ON(put_domains)) |
15991 | modeset_put_power_domains(dev_priv, put_domains); | |
15992 | } | |
15993 | intel_display_set_init_power(dev_priv, false); | |
010cf73d PZ |
15994 | |
15995 | intel_fbc_init_pipe_state(dev_priv); | |
043e9bda | 15996 | } |
7d0bc1ea | 15997 | |
043e9bda ML |
15998 | void intel_display_resume(struct drm_device *dev) |
15999 | { | |
e2c8b870 ML |
16000 | struct drm_i915_private *dev_priv = to_i915(dev); |
16001 | struct drm_atomic_state *state = dev_priv->modeset_restore_state; | |
16002 | struct drm_modeset_acquire_ctx ctx; | |
043e9bda | 16003 | int ret; |
e2c8b870 | 16004 | bool setup = false; |
f30da187 | 16005 | |
e2c8b870 | 16006 | dev_priv->modeset_restore_state = NULL; |
043e9bda | 16007 | |
ea49c9ac ML |
16008 | /* |
16009 | * This is a cludge because with real atomic modeset mode_config.mutex | |
16010 | * won't be taken. Unfortunately some probed state like | |
16011 | * audio_codec_enable is still protected by mode_config.mutex, so lock | |
16012 | * it here for now. | |
16013 | */ | |
16014 | mutex_lock(&dev->mode_config.mutex); | |
e2c8b870 | 16015 | drm_modeset_acquire_init(&ctx, 0); |
043e9bda | 16016 | |
e2c8b870 ML |
16017 | retry: |
16018 | ret = drm_modeset_lock_all_ctx(dev, &ctx); | |
043e9bda | 16019 | |
e2c8b870 ML |
16020 | if (ret == 0 && !setup) { |
16021 | setup = true; | |
043e9bda | 16022 | |
e2c8b870 ML |
16023 | intel_modeset_setup_hw_state(dev); |
16024 | i915_redisable_vga(dev); | |
45e2b5f6 | 16025 | } |
8af6cf88 | 16026 | |
e2c8b870 ML |
16027 | if (ret == 0 && state) { |
16028 | struct drm_crtc_state *crtc_state; | |
16029 | struct drm_crtc *crtc; | |
16030 | int i; | |
043e9bda | 16031 | |
e2c8b870 ML |
16032 | state->acquire_ctx = &ctx; |
16033 | ||
9bd18728 VS |
16034 | /* ignore any reset values/BIOS leftovers in the WM registers */ |
16035 | to_intel_atomic_state(state)->skip_intermediate_wm = true; | |
16036 | ||
e2c8b870 ML |
16037 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
16038 | /* | |
16039 | * Force recalculation even if we restore | |
16040 | * current state. With fast modeset this may not result | |
16041 | * in a modeset when the state is compatible. | |
16042 | */ | |
16043 | crtc_state->mode_changed = true; | |
16044 | } | |
16045 | ||
16046 | ret = drm_atomic_commit(state); | |
043e9bda ML |
16047 | } |
16048 | ||
e2c8b870 ML |
16049 | if (ret == -EDEADLK) { |
16050 | drm_modeset_backoff(&ctx); | |
16051 | goto retry; | |
16052 | } | |
043e9bda | 16053 | |
e2c8b870 ML |
16054 | drm_modeset_drop_locks(&ctx); |
16055 | drm_modeset_acquire_fini(&ctx); | |
ea49c9ac | 16056 | mutex_unlock(&dev->mode_config.mutex); |
043e9bda | 16057 | |
e2c8b870 ML |
16058 | if (ret) { |
16059 | DRM_ERROR("Restoring old state failed with %i\n", ret); | |
16060 | drm_atomic_state_free(state); | |
16061 | } | |
2c7111db CW |
16062 | } |
16063 | ||
16064 | void intel_modeset_gem_init(struct drm_device *dev) | |
16065 | { | |
484b41dd | 16066 | struct drm_crtc *c; |
2ff8fde1 | 16067 | struct drm_i915_gem_object *obj; |
e0d6149b | 16068 | int ret; |
484b41dd | 16069 | |
ae48434c | 16070 | intel_init_gt_powersave(dev); |
ae48434c | 16071 | |
1833b134 | 16072 | intel_modeset_init_hw(dev); |
02e792fb DV |
16073 | |
16074 | intel_setup_overlay(dev); | |
484b41dd JB |
16075 | |
16076 | /* | |
16077 | * Make sure any fbs we allocated at startup are properly | |
16078 | * pinned & fenced. When we do the allocation it's too early | |
16079 | * for this. | |
16080 | */ | |
70e1e0ec | 16081 | for_each_crtc(dev, c) { |
2ff8fde1 MR |
16082 | obj = intel_fb_obj(c->primary->fb); |
16083 | if (obj == NULL) | |
484b41dd JB |
16084 | continue; |
16085 | ||
e0d6149b | 16086 | mutex_lock(&dev->struct_mutex); |
3465c580 VS |
16087 | ret = intel_pin_and_fence_fb_obj(c->primary->fb, |
16088 | c->primary->state->rotation); | |
e0d6149b TU |
16089 | mutex_unlock(&dev->struct_mutex); |
16090 | if (ret) { | |
484b41dd JB |
16091 | DRM_ERROR("failed to pin boot fb on pipe %d\n", |
16092 | to_intel_crtc(c)->pipe); | |
66e514c1 DA |
16093 | drm_framebuffer_unreference(c->primary->fb); |
16094 | c->primary->fb = NULL; | |
36750f28 | 16095 | c->primary->crtc = c->primary->state->crtc = NULL; |
afd65eb4 | 16096 | update_state_fb(c->primary); |
36750f28 | 16097 | c->state->plane_mask &= ~(1 << drm_plane_index(c->primary)); |
484b41dd JB |
16098 | } |
16099 | } | |
0962c3c9 VS |
16100 | |
16101 | intel_backlight_register(dev); | |
79e53945 JB |
16102 | } |
16103 | ||
4932e2c3 ID |
16104 | void intel_connector_unregister(struct intel_connector *intel_connector) |
16105 | { | |
16106 | struct drm_connector *connector = &intel_connector->base; | |
16107 | ||
16108 | intel_panel_destroy_backlight(connector); | |
34ea3d38 | 16109 | drm_connector_unregister(connector); |
4932e2c3 ID |
16110 | } |
16111 | ||
79e53945 JB |
16112 | void intel_modeset_cleanup(struct drm_device *dev) |
16113 | { | |
652c393a | 16114 | struct drm_i915_private *dev_priv = dev->dev_private; |
19c8054c | 16115 | struct intel_connector *connector; |
652c393a | 16116 | |
2eb5252e ID |
16117 | intel_disable_gt_powersave(dev); |
16118 | ||
0962c3c9 VS |
16119 | intel_backlight_unregister(dev); |
16120 | ||
fd0c0642 DV |
16121 | /* |
16122 | * Interrupts and polling as the first thing to avoid creating havoc. | |
2eb5252e | 16123 | * Too much stuff here (turning of connectors, ...) would |
fd0c0642 DV |
16124 | * experience fancy races otherwise. |
16125 | */ | |
2aeb7d3a | 16126 | intel_irq_uninstall(dev_priv); |
eb21b92b | 16127 | |
fd0c0642 DV |
16128 | /* |
16129 | * Due to the hpd irq storm handling the hotplug work can re-arm the | |
16130 | * poll handlers. Hence disable polling after hpd handling is shut down. | |
16131 | */ | |
f87ea761 | 16132 | drm_kms_helper_poll_fini(dev); |
fd0c0642 | 16133 | |
723bfd70 JB |
16134 | intel_unregister_dsm_handler(); |
16135 | ||
c937ab3e | 16136 | intel_fbc_global_disable(dev_priv); |
69341a5e | 16137 | |
1630fe75 CW |
16138 | /* flush any delayed tasks or pending work */ |
16139 | flush_scheduled_work(); | |
16140 | ||
db31af1d | 16141 | /* destroy the backlight and sysfs files before encoders/connectors */ |
19c8054c JN |
16142 | for_each_intel_connector(dev, connector) |
16143 | connector->unregister(connector); | |
d9255d57 | 16144 | |
79e53945 | 16145 | drm_mode_config_cleanup(dev); |
4d7bb011 DV |
16146 | |
16147 | intel_cleanup_overlay(dev); | |
ae48434c | 16148 | |
ae48434c | 16149 | intel_cleanup_gt_powersave(dev); |
f5949141 DV |
16150 | |
16151 | intel_teardown_gmbus(dev); | |
79e53945 JB |
16152 | } |
16153 | ||
f1c79df3 ZW |
16154 | /* |
16155 | * Return which encoder is currently attached for connector. | |
16156 | */ | |
df0e9248 | 16157 | struct drm_encoder *intel_best_encoder(struct drm_connector *connector) |
79e53945 | 16158 | { |
df0e9248 CW |
16159 | return &intel_attached_encoder(connector)->base; |
16160 | } | |
f1c79df3 | 16161 | |
df0e9248 CW |
16162 | void intel_connector_attach_encoder(struct intel_connector *connector, |
16163 | struct intel_encoder *encoder) | |
16164 | { | |
16165 | connector->encoder = encoder; | |
16166 | drm_mode_connector_attach_encoder(&connector->base, | |
16167 | &encoder->base); | |
79e53945 | 16168 | } |
28d52043 DA |
16169 | |
16170 | /* | |
16171 | * set vga decode state - true == enable VGA decode | |
16172 | */ | |
16173 | int intel_modeset_vga_set_state(struct drm_device *dev, bool state) | |
16174 | { | |
16175 | struct drm_i915_private *dev_priv = dev->dev_private; | |
a885b3cc | 16176 | unsigned reg = INTEL_INFO(dev)->gen >= 6 ? SNB_GMCH_CTRL : INTEL_GMCH_CTRL; |
28d52043 DA |
16177 | u16 gmch_ctrl; |
16178 | ||
75fa041d CW |
16179 | if (pci_read_config_word(dev_priv->bridge_dev, reg, &gmch_ctrl)) { |
16180 | DRM_ERROR("failed to read control word\n"); | |
16181 | return -EIO; | |
16182 | } | |
16183 | ||
c0cc8a55 CW |
16184 | if (!!(gmch_ctrl & INTEL_GMCH_VGA_DISABLE) == !state) |
16185 | return 0; | |
16186 | ||
28d52043 DA |
16187 | if (state) |
16188 | gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE; | |
16189 | else | |
16190 | gmch_ctrl |= INTEL_GMCH_VGA_DISABLE; | |
75fa041d CW |
16191 | |
16192 | if (pci_write_config_word(dev_priv->bridge_dev, reg, gmch_ctrl)) { | |
16193 | DRM_ERROR("failed to write control word\n"); | |
16194 | return -EIO; | |
16195 | } | |
16196 | ||
28d52043 DA |
16197 | return 0; |
16198 | } | |
c4a1d9e4 | 16199 | |
c4a1d9e4 | 16200 | struct intel_display_error_state { |
ff57f1b0 PZ |
16201 | |
16202 | u32 power_well_driver; | |
16203 | ||
63b66e5b CW |
16204 | int num_transcoders; |
16205 | ||
c4a1d9e4 CW |
16206 | struct intel_cursor_error_state { |
16207 | u32 control; | |
16208 | u32 position; | |
16209 | u32 base; | |
16210 | u32 size; | |
52331309 | 16211 | } cursor[I915_MAX_PIPES]; |
c4a1d9e4 CW |
16212 | |
16213 | struct intel_pipe_error_state { | |
ddf9c536 | 16214 | bool power_domain_on; |
c4a1d9e4 | 16215 | u32 source; |
f301b1e1 | 16216 | u32 stat; |
52331309 | 16217 | } pipe[I915_MAX_PIPES]; |
c4a1d9e4 CW |
16218 | |
16219 | struct intel_plane_error_state { | |
16220 | u32 control; | |
16221 | u32 stride; | |
16222 | u32 size; | |
16223 | u32 pos; | |
16224 | u32 addr; | |
16225 | u32 surface; | |
16226 | u32 tile_offset; | |
52331309 | 16227 | } plane[I915_MAX_PIPES]; |
63b66e5b CW |
16228 | |
16229 | struct intel_transcoder_error_state { | |
ddf9c536 | 16230 | bool power_domain_on; |
63b66e5b CW |
16231 | enum transcoder cpu_transcoder; |
16232 | ||
16233 | u32 conf; | |
16234 | ||
16235 | u32 htotal; | |
16236 | u32 hblank; | |
16237 | u32 hsync; | |
16238 | u32 vtotal; | |
16239 | u32 vblank; | |
16240 | u32 vsync; | |
16241 | } transcoder[4]; | |
c4a1d9e4 CW |
16242 | }; |
16243 | ||
16244 | struct intel_display_error_state * | |
16245 | intel_display_capture_error_state(struct drm_device *dev) | |
16246 | { | |
fbee40df | 16247 | struct drm_i915_private *dev_priv = dev->dev_private; |
c4a1d9e4 | 16248 | struct intel_display_error_state *error; |
63b66e5b CW |
16249 | int transcoders[] = { |
16250 | TRANSCODER_A, | |
16251 | TRANSCODER_B, | |
16252 | TRANSCODER_C, | |
16253 | TRANSCODER_EDP, | |
16254 | }; | |
c4a1d9e4 CW |
16255 | int i; |
16256 | ||
63b66e5b CW |
16257 | if (INTEL_INFO(dev)->num_pipes == 0) |
16258 | return NULL; | |
16259 | ||
9d1cb914 | 16260 | error = kzalloc(sizeof(*error), GFP_ATOMIC); |
c4a1d9e4 CW |
16261 | if (error == NULL) |
16262 | return NULL; | |
16263 | ||
190be112 | 16264 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) |
ff57f1b0 PZ |
16265 | error->power_well_driver = I915_READ(HSW_PWR_WELL_DRIVER); |
16266 | ||
055e393f | 16267 | for_each_pipe(dev_priv, i) { |
ddf9c536 | 16268 | error->pipe[i].power_domain_on = |
f458ebbc DV |
16269 | __intel_display_power_is_enabled(dev_priv, |
16270 | POWER_DOMAIN_PIPE(i)); | |
ddf9c536 | 16271 | if (!error->pipe[i].power_domain_on) |
9d1cb914 PZ |
16272 | continue; |
16273 | ||
5efb3e28 VS |
16274 | error->cursor[i].control = I915_READ(CURCNTR(i)); |
16275 | error->cursor[i].position = I915_READ(CURPOS(i)); | |
16276 | error->cursor[i].base = I915_READ(CURBASE(i)); | |
c4a1d9e4 CW |
16277 | |
16278 | error->plane[i].control = I915_READ(DSPCNTR(i)); | |
16279 | error->plane[i].stride = I915_READ(DSPSTRIDE(i)); | |
80ca378b | 16280 | if (INTEL_INFO(dev)->gen <= 3) { |
51889b35 | 16281 | error->plane[i].size = I915_READ(DSPSIZE(i)); |
80ca378b PZ |
16282 | error->plane[i].pos = I915_READ(DSPPOS(i)); |
16283 | } | |
ca291363 PZ |
16284 | if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev)) |
16285 | error->plane[i].addr = I915_READ(DSPADDR(i)); | |
c4a1d9e4 CW |
16286 | if (INTEL_INFO(dev)->gen >= 4) { |
16287 | error->plane[i].surface = I915_READ(DSPSURF(i)); | |
16288 | error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i)); | |
16289 | } | |
16290 | ||
c4a1d9e4 | 16291 | error->pipe[i].source = I915_READ(PIPESRC(i)); |
f301b1e1 | 16292 | |
3abfce77 | 16293 | if (HAS_GMCH_DISPLAY(dev)) |
f301b1e1 | 16294 | error->pipe[i].stat = I915_READ(PIPESTAT(i)); |
63b66e5b CW |
16295 | } |
16296 | ||
4d1de975 | 16297 | /* Note: this does not include DSI transcoders. */ |
63b66e5b | 16298 | error->num_transcoders = INTEL_INFO(dev)->num_pipes; |
2d1fe073 | 16299 | if (HAS_DDI(dev_priv)) |
63b66e5b CW |
16300 | error->num_transcoders++; /* Account for eDP. */ |
16301 | ||
16302 | for (i = 0; i < error->num_transcoders; i++) { | |
16303 | enum transcoder cpu_transcoder = transcoders[i]; | |
16304 | ||
ddf9c536 | 16305 | error->transcoder[i].power_domain_on = |
f458ebbc | 16306 | __intel_display_power_is_enabled(dev_priv, |
38cc1daf | 16307 | POWER_DOMAIN_TRANSCODER(cpu_transcoder)); |
ddf9c536 | 16308 | if (!error->transcoder[i].power_domain_on) |
9d1cb914 PZ |
16309 | continue; |
16310 | ||
63b66e5b CW |
16311 | error->transcoder[i].cpu_transcoder = cpu_transcoder; |
16312 | ||
16313 | error->transcoder[i].conf = I915_READ(PIPECONF(cpu_transcoder)); | |
16314 | error->transcoder[i].htotal = I915_READ(HTOTAL(cpu_transcoder)); | |
16315 | error->transcoder[i].hblank = I915_READ(HBLANK(cpu_transcoder)); | |
16316 | error->transcoder[i].hsync = I915_READ(HSYNC(cpu_transcoder)); | |
16317 | error->transcoder[i].vtotal = I915_READ(VTOTAL(cpu_transcoder)); | |
16318 | error->transcoder[i].vblank = I915_READ(VBLANK(cpu_transcoder)); | |
16319 | error->transcoder[i].vsync = I915_READ(VSYNC(cpu_transcoder)); | |
c4a1d9e4 CW |
16320 | } |
16321 | ||
16322 | return error; | |
16323 | } | |
16324 | ||
edc3d884 MK |
16325 | #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__) |
16326 | ||
c4a1d9e4 | 16327 | void |
edc3d884 | 16328 | intel_display_print_error_state(struct drm_i915_error_state_buf *m, |
c4a1d9e4 CW |
16329 | struct drm_device *dev, |
16330 | struct intel_display_error_state *error) | |
16331 | { | |
055e393f | 16332 | struct drm_i915_private *dev_priv = dev->dev_private; |
c4a1d9e4 CW |
16333 | int i; |
16334 | ||
63b66e5b CW |
16335 | if (!error) |
16336 | return; | |
16337 | ||
edc3d884 | 16338 | err_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes); |
190be112 | 16339 | if (IS_HASWELL(dev) || IS_BROADWELL(dev)) |
edc3d884 | 16340 | err_printf(m, "PWR_WELL_CTL2: %08x\n", |
ff57f1b0 | 16341 | error->power_well_driver); |
055e393f | 16342 | for_each_pipe(dev_priv, i) { |
edc3d884 | 16343 | err_printf(m, "Pipe [%d]:\n", i); |
ddf9c536 | 16344 | err_printf(m, " Power: %s\n", |
87ad3212 | 16345 | onoff(error->pipe[i].power_domain_on)); |
edc3d884 | 16346 | err_printf(m, " SRC: %08x\n", error->pipe[i].source); |
f301b1e1 | 16347 | err_printf(m, " STAT: %08x\n", error->pipe[i].stat); |
edc3d884 MK |
16348 | |
16349 | err_printf(m, "Plane [%d]:\n", i); | |
16350 | err_printf(m, " CNTR: %08x\n", error->plane[i].control); | |
16351 | err_printf(m, " STRIDE: %08x\n", error->plane[i].stride); | |
80ca378b | 16352 | if (INTEL_INFO(dev)->gen <= 3) { |
edc3d884 MK |
16353 | err_printf(m, " SIZE: %08x\n", error->plane[i].size); |
16354 | err_printf(m, " POS: %08x\n", error->plane[i].pos); | |
80ca378b | 16355 | } |
4b71a570 | 16356 | if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev)) |
edc3d884 | 16357 | err_printf(m, " ADDR: %08x\n", error->plane[i].addr); |
c4a1d9e4 | 16358 | if (INTEL_INFO(dev)->gen >= 4) { |
edc3d884 MK |
16359 | err_printf(m, " SURF: %08x\n", error->plane[i].surface); |
16360 | err_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset); | |
c4a1d9e4 CW |
16361 | } |
16362 | ||
edc3d884 MK |
16363 | err_printf(m, "Cursor [%d]:\n", i); |
16364 | err_printf(m, " CNTR: %08x\n", error->cursor[i].control); | |
16365 | err_printf(m, " POS: %08x\n", error->cursor[i].position); | |
16366 | err_printf(m, " BASE: %08x\n", error->cursor[i].base); | |
c4a1d9e4 | 16367 | } |
63b66e5b CW |
16368 | |
16369 | for (i = 0; i < error->num_transcoders; i++) { | |
da205630 | 16370 | err_printf(m, "CPU transcoder: %s\n", |
63b66e5b | 16371 | transcoder_name(error->transcoder[i].cpu_transcoder)); |
ddf9c536 | 16372 | err_printf(m, " Power: %s\n", |
87ad3212 | 16373 | onoff(error->transcoder[i].power_domain_on)); |
63b66e5b CW |
16374 | err_printf(m, " CONF: %08x\n", error->transcoder[i].conf); |
16375 | err_printf(m, " HTOTAL: %08x\n", error->transcoder[i].htotal); | |
16376 | err_printf(m, " HBLANK: %08x\n", error->transcoder[i].hblank); | |
16377 | err_printf(m, " HSYNC: %08x\n", error->transcoder[i].hsync); | |
16378 | err_printf(m, " VTOTAL: %08x\n", error->transcoder[i].vtotal); | |
16379 | err_printf(m, " VBLANK: %08x\n", error->transcoder[i].vblank); | |
16380 | err_printf(m, " VSYNC: %08x\n", error->transcoder[i].vsync); | |
16381 | } | |
c4a1d9e4 | 16382 | } |