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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" |
e5510fac | 39 | #include "i915_trace.h" |
760285e7 DH |
40 | #include <drm/drm_dp_helper.h> |
41 | #include <drm/drm_crtc_helper.h> | |
c0f372b3 | 42 | #include <linux/dma_remapping.h> |
79e53945 | 43 | |
0206e353 | 44 | bool intel_pipe_has_type(struct drm_crtc *crtc, int type); |
3dec0095 | 45 | static void intel_increase_pllclock(struct drm_crtc *crtc); |
6b383a7f | 46 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on); |
79e53945 | 47 | |
79e53945 | 48 | typedef struct { |
0206e353 | 49 | int min, max; |
79e53945 JB |
50 | } intel_range_t; |
51 | ||
52 | typedef struct { | |
0206e353 AJ |
53 | int dot_limit; |
54 | int p2_slow, p2_fast; | |
79e53945 JB |
55 | } intel_p2_t; |
56 | ||
57 | #define INTEL_P2_NUM 2 | |
d4906093 ML |
58 | typedef struct intel_limit intel_limit_t; |
59 | struct intel_limit { | |
0206e353 AJ |
60 | intel_range_t dot, vco, n, m, m1, m2, p, p1; |
61 | intel_p2_t p2; | |
f4808ab8 VS |
62 | /** |
63 | * find_pll() - Find the best values for the PLL | |
64 | * @limit: limits for the PLL | |
65 | * @crtc: current CRTC | |
66 | * @target: target frequency in kHz | |
67 | * @refclk: reference clock frequency in kHz | |
68 | * @match_clock: if provided, @best_clock P divider must | |
69 | * match the P divider from @match_clock | |
70 | * used for LVDS downclocking | |
71 | * @best_clock: best PLL values found | |
72 | * | |
73 | * Returns true on success, false on failure. | |
74 | */ | |
75 | bool (*find_pll)(const intel_limit_t *limit, | |
76 | struct drm_crtc *crtc, | |
77 | int target, int refclk, | |
78 | intel_clock_t *match_clock, | |
79 | intel_clock_t *best_clock); | |
d4906093 | 80 | }; |
79e53945 | 81 | |
2377b741 JB |
82 | /* FDI */ |
83 | #define IRONLAKE_FDI_FREQ 2700000 /* in kHz for mode->clock */ | |
84 | ||
d2acd215 DV |
85 | int |
86 | intel_pch_rawclk(struct drm_device *dev) | |
87 | { | |
88 | struct drm_i915_private *dev_priv = dev->dev_private; | |
89 | ||
90 | WARN_ON(!HAS_PCH_SPLIT(dev)); | |
91 | ||
92 | return I915_READ(PCH_RAWCLK_FREQ) & RAWCLK_FREQ_MASK; | |
93 | } | |
94 | ||
d4906093 ML |
95 | static bool |
96 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
97 | int target, int refclk, intel_clock_t *match_clock, |
98 | intel_clock_t *best_clock); | |
d4906093 ML |
99 | static bool |
100 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
101 | int target, int refclk, intel_clock_t *match_clock, |
102 | intel_clock_t *best_clock); | |
79e53945 | 103 | |
a0c4da24 JB |
104 | static bool |
105 | intel_vlv_find_best_pll(const intel_limit_t *limit, struct drm_crtc *crtc, | |
106 | int target, int refclk, intel_clock_t *match_clock, | |
107 | intel_clock_t *best_clock); | |
108 | ||
021357ac CW |
109 | static inline u32 /* units of 100MHz */ |
110 | intel_fdi_link_freq(struct drm_device *dev) | |
111 | { | |
8b99e68c CW |
112 | if (IS_GEN5(dev)) { |
113 | struct drm_i915_private *dev_priv = dev->dev_private; | |
114 | return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2; | |
115 | } else | |
116 | return 27; | |
021357ac CW |
117 | } |
118 | ||
e4b36699 | 119 | static const intel_limit_t intel_limits_i8xx_dvo = { |
0206e353 AJ |
120 | .dot = { .min = 25000, .max = 350000 }, |
121 | .vco = { .min = 930000, .max = 1400000 }, | |
122 | .n = { .min = 3, .max = 16 }, | |
123 | .m = { .min = 96, .max = 140 }, | |
124 | .m1 = { .min = 18, .max = 26 }, | |
125 | .m2 = { .min = 6, .max = 16 }, | |
126 | .p = { .min = 4, .max = 128 }, | |
127 | .p1 = { .min = 2, .max = 33 }, | |
273e27ca EA |
128 | .p2 = { .dot_limit = 165000, |
129 | .p2_slow = 4, .p2_fast = 2 }, | |
d4906093 | 130 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
131 | }; |
132 | ||
133 | static const intel_limit_t intel_limits_i8xx_lvds = { | |
0206e353 AJ |
134 | .dot = { .min = 25000, .max = 350000 }, |
135 | .vco = { .min = 930000, .max = 1400000 }, | |
136 | .n = { .min = 3, .max = 16 }, | |
137 | .m = { .min = 96, .max = 140 }, | |
138 | .m1 = { .min = 18, .max = 26 }, | |
139 | .m2 = { .min = 6, .max = 16 }, | |
140 | .p = { .min = 4, .max = 128 }, | |
141 | .p1 = { .min = 1, .max = 6 }, | |
273e27ca EA |
142 | .p2 = { .dot_limit = 165000, |
143 | .p2_slow = 14, .p2_fast = 7 }, | |
d4906093 | 144 | .find_pll = intel_find_best_PLL, |
e4b36699 | 145 | }; |
273e27ca | 146 | |
e4b36699 | 147 | static const intel_limit_t intel_limits_i9xx_sdvo = { |
0206e353 AJ |
148 | .dot = { .min = 20000, .max = 400000 }, |
149 | .vco = { .min = 1400000, .max = 2800000 }, | |
150 | .n = { .min = 1, .max = 6 }, | |
151 | .m = { .min = 70, .max = 120 }, | |
4f7dfb67 PJ |
152 | .m1 = { .min = 8, .max = 18 }, |
153 | .m2 = { .min = 3, .max = 7 }, | |
0206e353 AJ |
154 | .p = { .min = 5, .max = 80 }, |
155 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
156 | .p2 = { .dot_limit = 200000, |
157 | .p2_slow = 10, .p2_fast = 5 }, | |
d4906093 | 158 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
159 | }; |
160 | ||
161 | static const intel_limit_t intel_limits_i9xx_lvds = { | |
0206e353 AJ |
162 | .dot = { .min = 20000, .max = 400000 }, |
163 | .vco = { .min = 1400000, .max = 2800000 }, | |
164 | .n = { .min = 1, .max = 6 }, | |
165 | .m = { .min = 70, .max = 120 }, | |
53a7d2d1 PJ |
166 | .m1 = { .min = 8, .max = 18 }, |
167 | .m2 = { .min = 3, .max = 7 }, | |
0206e353 AJ |
168 | .p = { .min = 7, .max = 98 }, |
169 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
170 | .p2 = { .dot_limit = 112000, |
171 | .p2_slow = 14, .p2_fast = 7 }, | |
d4906093 | 172 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
173 | }; |
174 | ||
273e27ca | 175 | |
e4b36699 | 176 | static const intel_limit_t intel_limits_g4x_sdvo = { |
273e27ca EA |
177 | .dot = { .min = 25000, .max = 270000 }, |
178 | .vco = { .min = 1750000, .max = 3500000}, | |
179 | .n = { .min = 1, .max = 4 }, | |
180 | .m = { .min = 104, .max = 138 }, | |
181 | .m1 = { .min = 17, .max = 23 }, | |
182 | .m2 = { .min = 5, .max = 11 }, | |
183 | .p = { .min = 10, .max = 30 }, | |
184 | .p1 = { .min = 1, .max = 3}, | |
185 | .p2 = { .dot_limit = 270000, | |
186 | .p2_slow = 10, | |
187 | .p2_fast = 10 | |
044c7c41 | 188 | }, |
d4906093 | 189 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
190 | }; |
191 | ||
192 | static const intel_limit_t intel_limits_g4x_hdmi = { | |
273e27ca EA |
193 | .dot = { .min = 22000, .max = 400000 }, |
194 | .vco = { .min = 1750000, .max = 3500000}, | |
195 | .n = { .min = 1, .max = 4 }, | |
196 | .m = { .min = 104, .max = 138 }, | |
197 | .m1 = { .min = 16, .max = 23 }, | |
198 | .m2 = { .min = 5, .max = 11 }, | |
199 | .p = { .min = 5, .max = 80 }, | |
200 | .p1 = { .min = 1, .max = 8}, | |
201 | .p2 = { .dot_limit = 165000, | |
202 | .p2_slow = 10, .p2_fast = 5 }, | |
d4906093 | 203 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
204 | }; |
205 | ||
206 | static const intel_limit_t intel_limits_g4x_single_channel_lvds = { | |
273e27ca EA |
207 | .dot = { .min = 20000, .max = 115000 }, |
208 | .vco = { .min = 1750000, .max = 3500000 }, | |
209 | .n = { .min = 1, .max = 3 }, | |
210 | .m = { .min = 104, .max = 138 }, | |
211 | .m1 = { .min = 17, .max = 23 }, | |
212 | .m2 = { .min = 5, .max = 11 }, | |
213 | .p = { .min = 28, .max = 112 }, | |
214 | .p1 = { .min = 2, .max = 8 }, | |
215 | .p2 = { .dot_limit = 0, | |
216 | .p2_slow = 14, .p2_fast = 14 | |
044c7c41 | 217 | }, |
d4906093 | 218 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
219 | }; |
220 | ||
221 | static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { | |
273e27ca EA |
222 | .dot = { .min = 80000, .max = 224000 }, |
223 | .vco = { .min = 1750000, .max = 3500000 }, | |
224 | .n = { .min = 1, .max = 3 }, | |
225 | .m = { .min = 104, .max = 138 }, | |
226 | .m1 = { .min = 17, .max = 23 }, | |
227 | .m2 = { .min = 5, .max = 11 }, | |
228 | .p = { .min = 14, .max = 42 }, | |
229 | .p1 = { .min = 2, .max = 6 }, | |
230 | .p2 = { .dot_limit = 0, | |
231 | .p2_slow = 7, .p2_fast = 7 | |
044c7c41 | 232 | }, |
d4906093 | 233 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
234 | }; |
235 | ||
f2b115e6 | 236 | static const intel_limit_t intel_limits_pineview_sdvo = { |
0206e353 AJ |
237 | .dot = { .min = 20000, .max = 400000}, |
238 | .vco = { .min = 1700000, .max = 3500000 }, | |
273e27ca | 239 | /* Pineview's Ncounter is a ring counter */ |
0206e353 AJ |
240 | .n = { .min = 3, .max = 6 }, |
241 | .m = { .min = 2, .max = 256 }, | |
273e27ca | 242 | /* Pineview only has one combined m divider, which we treat as m2. */ |
0206e353 AJ |
243 | .m1 = { .min = 0, .max = 0 }, |
244 | .m2 = { .min = 0, .max = 254 }, | |
245 | .p = { .min = 5, .max = 80 }, | |
246 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
247 | .p2 = { .dot_limit = 200000, |
248 | .p2_slow = 10, .p2_fast = 5 }, | |
6115707b | 249 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
250 | }; |
251 | ||
f2b115e6 | 252 | static const intel_limit_t intel_limits_pineview_lvds = { |
0206e353 AJ |
253 | .dot = { .min = 20000, .max = 400000 }, |
254 | .vco = { .min = 1700000, .max = 3500000 }, | |
255 | .n = { .min = 3, .max = 6 }, | |
256 | .m = { .min = 2, .max = 256 }, | |
257 | .m1 = { .min = 0, .max = 0 }, | |
258 | .m2 = { .min = 0, .max = 254 }, | |
259 | .p = { .min = 7, .max = 112 }, | |
260 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
261 | .p2 = { .dot_limit = 112000, |
262 | .p2_slow = 14, .p2_fast = 14 }, | |
6115707b | 263 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
264 | }; |
265 | ||
273e27ca EA |
266 | /* Ironlake / Sandybridge |
267 | * | |
268 | * We calculate clock using (register_value + 2) for N/M1/M2, so here | |
269 | * the range value for them is (actual_value - 2). | |
270 | */ | |
b91ad0ec | 271 | static const intel_limit_t intel_limits_ironlake_dac = { |
273e27ca EA |
272 | .dot = { .min = 25000, .max = 350000 }, |
273 | .vco = { .min = 1760000, .max = 3510000 }, | |
274 | .n = { .min = 1, .max = 5 }, | |
275 | .m = { .min = 79, .max = 127 }, | |
276 | .m1 = { .min = 12, .max = 22 }, | |
277 | .m2 = { .min = 5, .max = 9 }, | |
278 | .p = { .min = 5, .max = 80 }, | |
279 | .p1 = { .min = 1, .max = 8 }, | |
280 | .p2 = { .dot_limit = 225000, | |
281 | .p2_slow = 10, .p2_fast = 5 }, | |
4547668a | 282 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
283 | }; |
284 | ||
b91ad0ec | 285 | static const intel_limit_t intel_limits_ironlake_single_lvds = { |
273e27ca EA |
286 | .dot = { .min = 25000, .max = 350000 }, |
287 | .vco = { .min = 1760000, .max = 3510000 }, | |
288 | .n = { .min = 1, .max = 3 }, | |
289 | .m = { .min = 79, .max = 118 }, | |
290 | .m1 = { .min = 12, .max = 22 }, | |
291 | .m2 = { .min = 5, .max = 9 }, | |
292 | .p = { .min = 28, .max = 112 }, | |
293 | .p1 = { .min = 2, .max = 8 }, | |
294 | .p2 = { .dot_limit = 225000, | |
295 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
296 | .find_pll = intel_g4x_find_best_PLL, |
297 | }; | |
298 | ||
299 | static const intel_limit_t intel_limits_ironlake_dual_lvds = { | |
273e27ca EA |
300 | .dot = { .min = 25000, .max = 350000 }, |
301 | .vco = { .min = 1760000, .max = 3510000 }, | |
302 | .n = { .min = 1, .max = 3 }, | |
303 | .m = { .min = 79, .max = 127 }, | |
304 | .m1 = { .min = 12, .max = 22 }, | |
305 | .m2 = { .min = 5, .max = 9 }, | |
306 | .p = { .min = 14, .max = 56 }, | |
307 | .p1 = { .min = 2, .max = 8 }, | |
308 | .p2 = { .dot_limit = 225000, | |
309 | .p2_slow = 7, .p2_fast = 7 }, | |
b91ad0ec ZW |
310 | .find_pll = intel_g4x_find_best_PLL, |
311 | }; | |
312 | ||
273e27ca | 313 | /* LVDS 100mhz refclk limits. */ |
b91ad0ec | 314 | static const intel_limit_t intel_limits_ironlake_single_lvds_100m = { |
273e27ca EA |
315 | .dot = { .min = 25000, .max = 350000 }, |
316 | .vco = { .min = 1760000, .max = 3510000 }, | |
317 | .n = { .min = 1, .max = 2 }, | |
318 | .m = { .min = 79, .max = 126 }, | |
319 | .m1 = { .min = 12, .max = 22 }, | |
320 | .m2 = { .min = 5, .max = 9 }, | |
321 | .p = { .min = 28, .max = 112 }, | |
0206e353 | 322 | .p1 = { .min = 2, .max = 8 }, |
273e27ca EA |
323 | .p2 = { .dot_limit = 225000, |
324 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
325 | .find_pll = intel_g4x_find_best_PLL, |
326 | }; | |
327 | ||
328 | static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = { | |
273e27ca EA |
329 | .dot = { .min = 25000, .max = 350000 }, |
330 | .vco = { .min = 1760000, .max = 3510000 }, | |
331 | .n = { .min = 1, .max = 3 }, | |
332 | .m = { .min = 79, .max = 126 }, | |
333 | .m1 = { .min = 12, .max = 22 }, | |
334 | .m2 = { .min = 5, .max = 9 }, | |
335 | .p = { .min = 14, .max = 42 }, | |
0206e353 | 336 | .p1 = { .min = 2, .max = 6 }, |
273e27ca EA |
337 | .p2 = { .dot_limit = 225000, |
338 | .p2_slow = 7, .p2_fast = 7 }, | |
4547668a ZY |
339 | .find_pll = intel_g4x_find_best_PLL, |
340 | }; | |
341 | ||
a0c4da24 JB |
342 | static const intel_limit_t intel_limits_vlv_dac = { |
343 | .dot = { .min = 25000, .max = 270000 }, | |
344 | .vco = { .min = 4000000, .max = 6000000 }, | |
345 | .n = { .min = 1, .max = 7 }, | |
346 | .m = { .min = 22, .max = 450 }, /* guess */ | |
347 | .m1 = { .min = 2, .max = 3 }, | |
348 | .m2 = { .min = 11, .max = 156 }, | |
349 | .p = { .min = 10, .max = 30 }, | |
75e53986 | 350 | .p1 = { .min = 1, .max = 3 }, |
a0c4da24 JB |
351 | .p2 = { .dot_limit = 270000, |
352 | .p2_slow = 2, .p2_fast = 20 }, | |
353 | .find_pll = intel_vlv_find_best_pll, | |
354 | }; | |
355 | ||
356 | static const intel_limit_t intel_limits_vlv_hdmi = { | |
75e53986 DV |
357 | .dot = { .min = 25000, .max = 270000 }, |
358 | .vco = { .min = 4000000, .max = 6000000 }, | |
a0c4da24 JB |
359 | .n = { .min = 1, .max = 7 }, |
360 | .m = { .min = 60, .max = 300 }, /* guess */ | |
361 | .m1 = { .min = 2, .max = 3 }, | |
362 | .m2 = { .min = 11, .max = 156 }, | |
363 | .p = { .min = 10, .max = 30 }, | |
364 | .p1 = { .min = 2, .max = 3 }, | |
365 | .p2 = { .dot_limit = 270000, | |
366 | .p2_slow = 2, .p2_fast = 20 }, | |
367 | .find_pll = intel_vlv_find_best_pll, | |
368 | }; | |
369 | ||
370 | static const intel_limit_t intel_limits_vlv_dp = { | |
74a4dd2e VP |
371 | .dot = { .min = 25000, .max = 270000 }, |
372 | .vco = { .min = 4000000, .max = 6000000 }, | |
a0c4da24 | 373 | .n = { .min = 1, .max = 7 }, |
74a4dd2e | 374 | .m = { .min = 22, .max = 450 }, |
a0c4da24 JB |
375 | .m1 = { .min = 2, .max = 3 }, |
376 | .m2 = { .min = 11, .max = 156 }, | |
377 | .p = { .min = 10, .max = 30 }, | |
75e53986 | 378 | .p1 = { .min = 1, .max = 3 }, |
a0c4da24 JB |
379 | .p2 = { .dot_limit = 270000, |
380 | .p2_slow = 2, .p2_fast = 20 }, | |
381 | .find_pll = intel_vlv_find_best_pll, | |
382 | }; | |
383 | ||
1b894b59 CW |
384 | static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc, |
385 | int refclk) | |
2c07245f | 386 | { |
b91ad0ec | 387 | struct drm_device *dev = crtc->dev; |
2c07245f | 388 | const intel_limit_t *limit; |
b91ad0ec ZW |
389 | |
390 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
1974cad0 | 391 | if (intel_is_dual_link_lvds(dev)) { |
1b894b59 | 392 | if (refclk == 100000) |
b91ad0ec ZW |
393 | limit = &intel_limits_ironlake_dual_lvds_100m; |
394 | else | |
395 | limit = &intel_limits_ironlake_dual_lvds; | |
396 | } else { | |
1b894b59 | 397 | if (refclk == 100000) |
b91ad0ec ZW |
398 | limit = &intel_limits_ironlake_single_lvds_100m; |
399 | else | |
400 | limit = &intel_limits_ironlake_single_lvds; | |
401 | } | |
c6bb3538 | 402 | } else |
b91ad0ec | 403 | limit = &intel_limits_ironlake_dac; |
2c07245f ZW |
404 | |
405 | return limit; | |
406 | } | |
407 | ||
044c7c41 ML |
408 | static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc) |
409 | { | |
410 | struct drm_device *dev = crtc->dev; | |
044c7c41 ML |
411 | const intel_limit_t *limit; |
412 | ||
413 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
1974cad0 | 414 | if (intel_is_dual_link_lvds(dev)) |
e4b36699 | 415 | limit = &intel_limits_g4x_dual_channel_lvds; |
044c7c41 | 416 | else |
e4b36699 | 417 | limit = &intel_limits_g4x_single_channel_lvds; |
044c7c41 ML |
418 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) || |
419 | intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { | |
e4b36699 | 420 | limit = &intel_limits_g4x_hdmi; |
044c7c41 | 421 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) { |
e4b36699 | 422 | limit = &intel_limits_g4x_sdvo; |
044c7c41 | 423 | } else /* The option is for other outputs */ |
e4b36699 | 424 | limit = &intel_limits_i9xx_sdvo; |
044c7c41 ML |
425 | |
426 | return limit; | |
427 | } | |
428 | ||
1b894b59 | 429 | static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk) |
79e53945 JB |
430 | { |
431 | struct drm_device *dev = crtc->dev; | |
432 | const intel_limit_t *limit; | |
433 | ||
bad720ff | 434 | if (HAS_PCH_SPLIT(dev)) |
1b894b59 | 435 | limit = intel_ironlake_limit(crtc, refclk); |
2c07245f | 436 | else if (IS_G4X(dev)) { |
044c7c41 | 437 | limit = intel_g4x_limit(crtc); |
f2b115e6 | 438 | } else if (IS_PINEVIEW(dev)) { |
2177832f | 439 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
f2b115e6 | 440 | limit = &intel_limits_pineview_lvds; |
2177832f | 441 | else |
f2b115e6 | 442 | limit = &intel_limits_pineview_sdvo; |
a0c4da24 JB |
443 | } else if (IS_VALLEYVIEW(dev)) { |
444 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) | |
445 | limit = &intel_limits_vlv_dac; | |
446 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) | |
447 | limit = &intel_limits_vlv_hdmi; | |
448 | else | |
449 | limit = &intel_limits_vlv_dp; | |
a6c45cf0 CW |
450 | } else if (!IS_GEN2(dev)) { |
451 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
452 | limit = &intel_limits_i9xx_lvds; | |
453 | else | |
454 | limit = &intel_limits_i9xx_sdvo; | |
79e53945 JB |
455 | } else { |
456 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
e4b36699 | 457 | limit = &intel_limits_i8xx_lvds; |
79e53945 | 458 | else |
e4b36699 | 459 | limit = &intel_limits_i8xx_dvo; |
79e53945 JB |
460 | } |
461 | return limit; | |
462 | } | |
463 | ||
f2b115e6 AJ |
464 | /* m1 is reserved as 0 in Pineview, n is a ring counter */ |
465 | static void pineview_clock(int refclk, intel_clock_t *clock) | |
79e53945 | 466 | { |
2177832f SL |
467 | clock->m = clock->m2 + 2; |
468 | clock->p = clock->p1 * clock->p2; | |
469 | clock->vco = refclk * clock->m / clock->n; | |
470 | clock->dot = clock->vco / clock->p; | |
471 | } | |
472 | ||
7429e9d4 DV |
473 | static uint32_t i9xx_dpll_compute_m(struct dpll *dpll) |
474 | { | |
475 | return 5 * (dpll->m1 + 2) + (dpll->m2 + 2); | |
476 | } | |
477 | ||
2177832f SL |
478 | static void intel_clock(struct drm_device *dev, int refclk, intel_clock_t *clock) |
479 | { | |
f2b115e6 AJ |
480 | if (IS_PINEVIEW(dev)) { |
481 | pineview_clock(refclk, clock); | |
2177832f SL |
482 | return; |
483 | } | |
7429e9d4 | 484 | clock->m = i9xx_dpll_compute_m(clock); |
79e53945 JB |
485 | clock->p = clock->p1 * clock->p2; |
486 | clock->vco = refclk * clock->m / (clock->n + 2); | |
487 | clock->dot = clock->vco / clock->p; | |
488 | } | |
489 | ||
79e53945 JB |
490 | /** |
491 | * Returns whether any output on the specified pipe is of the specified type | |
492 | */ | |
4ef69c7a | 493 | bool intel_pipe_has_type(struct drm_crtc *crtc, int type) |
79e53945 | 494 | { |
4ef69c7a | 495 | struct drm_device *dev = crtc->dev; |
4ef69c7a CW |
496 | struct intel_encoder *encoder; |
497 | ||
6c2b7c12 DV |
498 | for_each_encoder_on_crtc(dev, crtc, encoder) |
499 | if (encoder->type == type) | |
4ef69c7a CW |
500 | return true; |
501 | ||
502 | return false; | |
79e53945 JB |
503 | } |
504 | ||
7c04d1d9 | 505 | #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) |
79e53945 JB |
506 | /** |
507 | * Returns whether the given set of divisors are valid for a given refclk with | |
508 | * the given connectors. | |
509 | */ | |
510 | ||
1b894b59 CW |
511 | static bool intel_PLL_is_valid(struct drm_device *dev, |
512 | const intel_limit_t *limit, | |
513 | const intel_clock_t *clock) | |
79e53945 | 514 | { |
79e53945 | 515 | if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1) |
0206e353 | 516 | INTELPllInvalid("p1 out of range\n"); |
79e53945 | 517 | if (clock->p < limit->p.min || limit->p.max < clock->p) |
0206e353 | 518 | INTELPllInvalid("p out of range\n"); |
79e53945 | 519 | if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2) |
0206e353 | 520 | INTELPllInvalid("m2 out of range\n"); |
79e53945 | 521 | if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1) |
0206e353 | 522 | INTELPllInvalid("m1 out of range\n"); |
f2b115e6 | 523 | if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev)) |
0206e353 | 524 | INTELPllInvalid("m1 <= m2\n"); |
79e53945 | 525 | if (clock->m < limit->m.min || limit->m.max < clock->m) |
0206e353 | 526 | INTELPllInvalid("m out of range\n"); |
79e53945 | 527 | if (clock->n < limit->n.min || limit->n.max < clock->n) |
0206e353 | 528 | INTELPllInvalid("n out of range\n"); |
79e53945 | 529 | if (clock->vco < limit->vco.min || limit->vco.max < clock->vco) |
0206e353 | 530 | INTELPllInvalid("vco out of range\n"); |
79e53945 JB |
531 | /* XXX: We may need to be checking "Dot clock" depending on the multiplier, |
532 | * connector, etc., rather than just a single range. | |
533 | */ | |
534 | if (clock->dot < limit->dot.min || limit->dot.max < clock->dot) | |
0206e353 | 535 | INTELPllInvalid("dot out of range\n"); |
79e53945 JB |
536 | |
537 | return true; | |
538 | } | |
539 | ||
d4906093 ML |
540 | static bool |
541 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
542 | int target, int refclk, intel_clock_t *match_clock, |
543 | intel_clock_t *best_clock) | |
d4906093 | 544 | |
79e53945 JB |
545 | { |
546 | struct drm_device *dev = crtc->dev; | |
79e53945 | 547 | intel_clock_t clock; |
79e53945 JB |
548 | int err = target; |
549 | ||
a210b028 | 550 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
79e53945 | 551 | /* |
a210b028 DV |
552 | * For LVDS just rely on its current settings for dual-channel. |
553 | * We haven't figured out how to reliably set up different | |
554 | * single/dual channel state, if we even can. | |
79e53945 | 555 | */ |
1974cad0 | 556 | if (intel_is_dual_link_lvds(dev)) |
79e53945 JB |
557 | clock.p2 = limit->p2.p2_fast; |
558 | else | |
559 | clock.p2 = limit->p2.p2_slow; | |
560 | } else { | |
561 | if (target < limit->p2.dot_limit) | |
562 | clock.p2 = limit->p2.p2_slow; | |
563 | else | |
564 | clock.p2 = limit->p2.p2_fast; | |
565 | } | |
566 | ||
0206e353 | 567 | memset(best_clock, 0, sizeof(*best_clock)); |
79e53945 | 568 | |
42158660 ZY |
569 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
570 | clock.m1++) { | |
571 | for (clock.m2 = limit->m2.min; | |
572 | clock.m2 <= limit->m2.max; clock.m2++) { | |
f2b115e6 AJ |
573 | /* m1 is always 0 in Pineview */ |
574 | if (clock.m2 >= clock.m1 && !IS_PINEVIEW(dev)) | |
42158660 ZY |
575 | break; |
576 | for (clock.n = limit->n.min; | |
577 | clock.n <= limit->n.max; clock.n++) { | |
578 | for (clock.p1 = limit->p1.min; | |
579 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
580 | int this_err; |
581 | ||
2177832f | 582 | intel_clock(dev, refclk, &clock); |
1b894b59 CW |
583 | if (!intel_PLL_is_valid(dev, limit, |
584 | &clock)) | |
79e53945 | 585 | continue; |
cec2f356 SP |
586 | if (match_clock && |
587 | clock.p != match_clock->p) | |
588 | continue; | |
79e53945 JB |
589 | |
590 | this_err = abs(clock.dot - target); | |
591 | if (this_err < err) { | |
592 | *best_clock = clock; | |
593 | err = this_err; | |
594 | } | |
595 | } | |
596 | } | |
597 | } | |
598 | } | |
599 | ||
600 | return (err != target); | |
601 | } | |
602 | ||
d4906093 ML |
603 | static bool |
604 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
605 | int target, int refclk, intel_clock_t *match_clock, |
606 | intel_clock_t *best_clock) | |
d4906093 ML |
607 | { |
608 | struct drm_device *dev = crtc->dev; | |
d4906093 ML |
609 | intel_clock_t clock; |
610 | int max_n; | |
611 | bool found; | |
6ba770dc AJ |
612 | /* approximately equals target * 0.00585 */ |
613 | int err_most = (target >> 8) + (target >> 9); | |
d4906093 ML |
614 | found = false; |
615 | ||
616 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
1974cad0 | 617 | if (intel_is_dual_link_lvds(dev)) |
d4906093 ML |
618 | clock.p2 = limit->p2.p2_fast; |
619 | else | |
620 | clock.p2 = limit->p2.p2_slow; | |
621 | } else { | |
622 | if (target < limit->p2.dot_limit) | |
623 | clock.p2 = limit->p2.p2_slow; | |
624 | else | |
625 | clock.p2 = limit->p2.p2_fast; | |
626 | } | |
627 | ||
628 | memset(best_clock, 0, sizeof(*best_clock)); | |
629 | max_n = limit->n.max; | |
f77f13e2 | 630 | /* based on hardware requirement, prefer smaller n to precision */ |
d4906093 | 631 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
f77f13e2 | 632 | /* based on hardware requirement, prefere larger m1,m2 */ |
d4906093 ML |
633 | for (clock.m1 = limit->m1.max; |
634 | clock.m1 >= limit->m1.min; clock.m1--) { | |
635 | for (clock.m2 = limit->m2.max; | |
636 | clock.m2 >= limit->m2.min; clock.m2--) { | |
637 | for (clock.p1 = limit->p1.max; | |
638 | clock.p1 >= limit->p1.min; clock.p1--) { | |
639 | int this_err; | |
640 | ||
2177832f | 641 | intel_clock(dev, refclk, &clock); |
1b894b59 CW |
642 | if (!intel_PLL_is_valid(dev, limit, |
643 | &clock)) | |
d4906093 | 644 | continue; |
1b894b59 CW |
645 | |
646 | this_err = abs(clock.dot - target); | |
d4906093 ML |
647 | if (this_err < err_most) { |
648 | *best_clock = clock; | |
649 | err_most = this_err; | |
650 | max_n = clock.n; | |
651 | found = true; | |
652 | } | |
653 | } | |
654 | } | |
655 | } | |
656 | } | |
2c07245f ZW |
657 | return found; |
658 | } | |
659 | ||
a0c4da24 JB |
660 | static bool |
661 | intel_vlv_find_best_pll(const intel_limit_t *limit, struct drm_crtc *crtc, | |
662 | int target, int refclk, intel_clock_t *match_clock, | |
663 | intel_clock_t *best_clock) | |
664 | { | |
665 | u32 p1, p2, m1, m2, vco, bestn, bestm1, bestm2, bestp1, bestp2; | |
666 | u32 m, n, fastclk; | |
667 | u32 updrate, minupdate, fracbits, p; | |
668 | unsigned long bestppm, ppm, absppm; | |
669 | int dotclk, flag; | |
670 | ||
af447bd3 | 671 | flag = 0; |
a0c4da24 JB |
672 | dotclk = target * 1000; |
673 | bestppm = 1000000; | |
674 | ppm = absppm = 0; | |
675 | fastclk = dotclk / (2*100); | |
676 | updrate = 0; | |
677 | minupdate = 19200; | |
678 | fracbits = 1; | |
679 | n = p = p1 = p2 = m = m1 = m2 = vco = bestn = 0; | |
680 | bestm1 = bestm2 = bestp1 = bestp2 = 0; | |
681 | ||
682 | /* based on hardware requirement, prefer smaller n to precision */ | |
683 | for (n = limit->n.min; n <= ((refclk) / minupdate); n++) { | |
684 | updrate = refclk / n; | |
685 | for (p1 = limit->p1.max; p1 > limit->p1.min; p1--) { | |
686 | for (p2 = limit->p2.p2_fast+1; p2 > 0; p2--) { | |
687 | if (p2 > 10) | |
688 | p2 = p2 - 1; | |
689 | p = p1 * p2; | |
690 | /* based on hardware requirement, prefer bigger m1,m2 values */ | |
691 | for (m1 = limit->m1.min; m1 <= limit->m1.max; m1++) { | |
692 | m2 = (((2*(fastclk * p * n / m1 )) + | |
693 | refclk) / (2*refclk)); | |
694 | m = m1 * m2; | |
695 | vco = updrate * m; | |
696 | if (vco >= limit->vco.min && vco < limit->vco.max) { | |
697 | ppm = 1000000 * ((vco / p) - fastclk) / fastclk; | |
698 | absppm = (ppm > 0) ? ppm : (-ppm); | |
699 | if (absppm < 100 && ((p1 * p2) > (bestp1 * bestp2))) { | |
700 | bestppm = 0; | |
701 | flag = 1; | |
702 | } | |
703 | if (absppm < bestppm - 10) { | |
704 | bestppm = absppm; | |
705 | flag = 1; | |
706 | } | |
707 | if (flag) { | |
708 | bestn = n; | |
709 | bestm1 = m1; | |
710 | bestm2 = m2; | |
711 | bestp1 = p1; | |
712 | bestp2 = p2; | |
713 | flag = 0; | |
714 | } | |
715 | } | |
716 | } | |
717 | } | |
718 | } | |
719 | } | |
720 | best_clock->n = bestn; | |
721 | best_clock->m1 = bestm1; | |
722 | best_clock->m2 = bestm2; | |
723 | best_clock->p1 = bestp1; | |
724 | best_clock->p2 = bestp2; | |
725 | ||
726 | return true; | |
727 | } | |
a4fc5ed6 | 728 | |
a5c961d1 PZ |
729 | enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv, |
730 | enum pipe pipe) | |
731 | { | |
732 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
733 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
734 | ||
3b117c8f | 735 | return intel_crtc->config.cpu_transcoder; |
a5c961d1 PZ |
736 | } |
737 | ||
a928d536 PZ |
738 | static void ironlake_wait_for_vblank(struct drm_device *dev, int pipe) |
739 | { | |
740 | struct drm_i915_private *dev_priv = dev->dev_private; | |
741 | u32 frame, frame_reg = PIPEFRAME(pipe); | |
742 | ||
743 | frame = I915_READ(frame_reg); | |
744 | ||
745 | if (wait_for(I915_READ_NOTRACE(frame_reg) != frame, 50)) | |
746 | DRM_DEBUG_KMS("vblank wait timed out\n"); | |
747 | } | |
748 | ||
9d0498a2 JB |
749 | /** |
750 | * intel_wait_for_vblank - wait for vblank on a given pipe | |
751 | * @dev: drm device | |
752 | * @pipe: pipe to wait for | |
753 | * | |
754 | * Wait for vblank to occur on a given pipe. Needed for various bits of | |
755 | * mode setting code. | |
756 | */ | |
757 | void intel_wait_for_vblank(struct drm_device *dev, int pipe) | |
79e53945 | 758 | { |
9d0498a2 | 759 | struct drm_i915_private *dev_priv = dev->dev_private; |
9db4a9c7 | 760 | int pipestat_reg = PIPESTAT(pipe); |
9d0498a2 | 761 | |
a928d536 PZ |
762 | if (INTEL_INFO(dev)->gen >= 5) { |
763 | ironlake_wait_for_vblank(dev, pipe); | |
764 | return; | |
765 | } | |
766 | ||
300387c0 CW |
767 | /* Clear existing vblank status. Note this will clear any other |
768 | * sticky status fields as well. | |
769 | * | |
770 | * This races with i915_driver_irq_handler() with the result | |
771 | * that either function could miss a vblank event. Here it is not | |
772 | * fatal, as we will either wait upon the next vblank interrupt or | |
773 | * timeout. Generally speaking intel_wait_for_vblank() is only | |
774 | * called during modeset at which time the GPU should be idle and | |
775 | * should *not* be performing page flips and thus not waiting on | |
776 | * vblanks... | |
777 | * Currently, the result of us stealing a vblank from the irq | |
778 | * handler is that a single frame will be skipped during swapbuffers. | |
779 | */ | |
780 | I915_WRITE(pipestat_reg, | |
781 | I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS); | |
782 | ||
9d0498a2 | 783 | /* Wait for vblank interrupt bit to set */ |
481b6af3 CW |
784 | if (wait_for(I915_READ(pipestat_reg) & |
785 | PIPE_VBLANK_INTERRUPT_STATUS, | |
786 | 50)) | |
9d0498a2 JB |
787 | DRM_DEBUG_KMS("vblank wait timed out\n"); |
788 | } | |
789 | ||
ab7ad7f6 KP |
790 | /* |
791 | * intel_wait_for_pipe_off - wait for pipe to turn off | |
9d0498a2 JB |
792 | * @dev: drm device |
793 | * @pipe: pipe to wait for | |
794 | * | |
795 | * After disabling a pipe, we can't wait for vblank in the usual way, | |
796 | * spinning on the vblank interrupt status bit, since we won't actually | |
797 | * see an interrupt when the pipe is disabled. | |
798 | * | |
ab7ad7f6 KP |
799 | * On Gen4 and above: |
800 | * wait for the pipe register state bit to turn off | |
801 | * | |
802 | * Otherwise: | |
803 | * wait for the display line value to settle (it usually | |
804 | * ends up stopping at the start of the next frame). | |
58e10eb9 | 805 | * |
9d0498a2 | 806 | */ |
58e10eb9 | 807 | void intel_wait_for_pipe_off(struct drm_device *dev, int pipe) |
9d0498a2 JB |
808 | { |
809 | struct drm_i915_private *dev_priv = dev->dev_private; | |
702e7a56 PZ |
810 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
811 | pipe); | |
ab7ad7f6 KP |
812 | |
813 | if (INTEL_INFO(dev)->gen >= 4) { | |
702e7a56 | 814 | int reg = PIPECONF(cpu_transcoder); |
ab7ad7f6 KP |
815 | |
816 | /* Wait for the Pipe State to go off */ | |
58e10eb9 CW |
817 | if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0, |
818 | 100)) | |
284637d9 | 819 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 820 | } else { |
837ba00f | 821 | u32 last_line, line_mask; |
58e10eb9 | 822 | int reg = PIPEDSL(pipe); |
ab7ad7f6 KP |
823 | unsigned long timeout = jiffies + msecs_to_jiffies(100); |
824 | ||
837ba00f PZ |
825 | if (IS_GEN2(dev)) |
826 | line_mask = DSL_LINEMASK_GEN2; | |
827 | else | |
828 | line_mask = DSL_LINEMASK_GEN3; | |
829 | ||
ab7ad7f6 KP |
830 | /* Wait for the display line to settle */ |
831 | do { | |
837ba00f | 832 | last_line = I915_READ(reg) & line_mask; |
ab7ad7f6 | 833 | mdelay(5); |
837ba00f | 834 | } while (((I915_READ(reg) & line_mask) != last_line) && |
ab7ad7f6 KP |
835 | time_after(timeout, jiffies)); |
836 | if (time_after(jiffies, timeout)) | |
284637d9 | 837 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 838 | } |
79e53945 JB |
839 | } |
840 | ||
b0ea7d37 DL |
841 | /* |
842 | * ibx_digital_port_connected - is the specified port connected? | |
843 | * @dev_priv: i915 private structure | |
844 | * @port: the port to test | |
845 | * | |
846 | * Returns true if @port is connected, false otherwise. | |
847 | */ | |
848 | bool ibx_digital_port_connected(struct drm_i915_private *dev_priv, | |
849 | struct intel_digital_port *port) | |
850 | { | |
851 | u32 bit; | |
852 | ||
c36346e3 DL |
853 | if (HAS_PCH_IBX(dev_priv->dev)) { |
854 | switch(port->port) { | |
855 | case PORT_B: | |
856 | bit = SDE_PORTB_HOTPLUG; | |
857 | break; | |
858 | case PORT_C: | |
859 | bit = SDE_PORTC_HOTPLUG; | |
860 | break; | |
861 | case PORT_D: | |
862 | bit = SDE_PORTD_HOTPLUG; | |
863 | break; | |
864 | default: | |
865 | return true; | |
866 | } | |
867 | } else { | |
868 | switch(port->port) { | |
869 | case PORT_B: | |
870 | bit = SDE_PORTB_HOTPLUG_CPT; | |
871 | break; | |
872 | case PORT_C: | |
873 | bit = SDE_PORTC_HOTPLUG_CPT; | |
874 | break; | |
875 | case PORT_D: | |
876 | bit = SDE_PORTD_HOTPLUG_CPT; | |
877 | break; | |
878 | default: | |
879 | return true; | |
880 | } | |
b0ea7d37 DL |
881 | } |
882 | ||
883 | return I915_READ(SDEISR) & bit; | |
884 | } | |
885 | ||
b24e7179 JB |
886 | static const char *state_string(bool enabled) |
887 | { | |
888 | return enabled ? "on" : "off"; | |
889 | } | |
890 | ||
891 | /* Only for pre-ILK configs */ | |
892 | static void assert_pll(struct drm_i915_private *dev_priv, | |
893 | enum pipe pipe, bool state) | |
894 | { | |
895 | int reg; | |
896 | u32 val; | |
897 | bool cur_state; | |
898 | ||
899 | reg = DPLL(pipe); | |
900 | val = I915_READ(reg); | |
901 | cur_state = !!(val & DPLL_VCO_ENABLE); | |
902 | WARN(cur_state != state, | |
903 | "PLL state assertion failure (expected %s, current %s)\n", | |
904 | state_string(state), state_string(cur_state)); | |
905 | } | |
906 | #define assert_pll_enabled(d, p) assert_pll(d, p, true) | |
907 | #define assert_pll_disabled(d, p) assert_pll(d, p, false) | |
908 | ||
040484af JB |
909 | /* For ILK+ */ |
910 | static void assert_pch_pll(struct drm_i915_private *dev_priv, | |
92b27b08 CW |
911 | struct intel_pch_pll *pll, |
912 | struct intel_crtc *crtc, | |
913 | bool state) | |
040484af | 914 | { |
040484af JB |
915 | u32 val; |
916 | bool cur_state; | |
917 | ||
9d82aa17 ED |
918 | if (HAS_PCH_LPT(dev_priv->dev)) { |
919 | DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n"); | |
920 | return; | |
921 | } | |
922 | ||
92b27b08 CW |
923 | if (WARN (!pll, |
924 | "asserting PCH PLL %s with no PLL\n", state_string(state))) | |
ee7b9f93 | 925 | return; |
ee7b9f93 | 926 | |
92b27b08 CW |
927 | val = I915_READ(pll->pll_reg); |
928 | cur_state = !!(val & DPLL_VCO_ENABLE); | |
929 | WARN(cur_state != state, | |
930 | "PCH PLL state for reg %x assertion failure (expected %s, current %s), val=%08x\n", | |
931 | pll->pll_reg, state_string(state), state_string(cur_state), val); | |
932 | ||
933 | /* Make sure the selected PLL is correctly attached to the transcoder */ | |
934 | if (crtc && HAS_PCH_CPT(dev_priv->dev)) { | |
d3ccbe86 JB |
935 | u32 pch_dpll; |
936 | ||
937 | pch_dpll = I915_READ(PCH_DPLL_SEL); | |
92b27b08 CW |
938 | cur_state = pll->pll_reg == _PCH_DPLL_B; |
939 | if (!WARN(((pch_dpll >> (4 * crtc->pipe)) & 1) != cur_state, | |
4bb6f1f3 VS |
940 | "PLL[%d] not attached to this transcoder %c: %08x\n", |
941 | cur_state, pipe_name(crtc->pipe), pch_dpll)) { | |
92b27b08 CW |
942 | cur_state = !!(val >> (4*crtc->pipe + 3)); |
943 | WARN(cur_state != state, | |
4bb6f1f3 | 944 | "PLL[%d] not %s on this transcoder %c: %08x\n", |
92b27b08 CW |
945 | pll->pll_reg == _PCH_DPLL_B, |
946 | state_string(state), | |
4bb6f1f3 | 947 | pipe_name(crtc->pipe), |
92b27b08 CW |
948 | val); |
949 | } | |
d3ccbe86 | 950 | } |
040484af | 951 | } |
92b27b08 CW |
952 | #define assert_pch_pll_enabled(d, p, c) assert_pch_pll(d, p, c, true) |
953 | #define assert_pch_pll_disabled(d, p, c) assert_pch_pll(d, p, c, false) | |
040484af JB |
954 | |
955 | static void assert_fdi_tx(struct drm_i915_private *dev_priv, | |
956 | enum pipe pipe, bool state) | |
957 | { | |
958 | int reg; | |
959 | u32 val; | |
960 | bool cur_state; | |
ad80a810 PZ |
961 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
962 | pipe); | |
040484af | 963 | |
affa9354 PZ |
964 | if (HAS_DDI(dev_priv->dev)) { |
965 | /* DDI does not have a specific FDI_TX register */ | |
ad80a810 | 966 | reg = TRANS_DDI_FUNC_CTL(cpu_transcoder); |
bf507ef7 | 967 | val = I915_READ(reg); |
ad80a810 | 968 | cur_state = !!(val & TRANS_DDI_FUNC_ENABLE); |
bf507ef7 ED |
969 | } else { |
970 | reg = FDI_TX_CTL(pipe); | |
971 | val = I915_READ(reg); | |
972 | cur_state = !!(val & FDI_TX_ENABLE); | |
973 | } | |
040484af JB |
974 | WARN(cur_state != state, |
975 | "FDI TX state assertion failure (expected %s, current %s)\n", | |
976 | state_string(state), state_string(cur_state)); | |
977 | } | |
978 | #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true) | |
979 | #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false) | |
980 | ||
981 | static void assert_fdi_rx(struct drm_i915_private *dev_priv, | |
982 | enum pipe pipe, bool state) | |
983 | { | |
984 | int reg; | |
985 | u32 val; | |
986 | bool cur_state; | |
987 | ||
d63fa0dc PZ |
988 | reg = FDI_RX_CTL(pipe); |
989 | val = I915_READ(reg); | |
990 | cur_state = !!(val & FDI_RX_ENABLE); | |
040484af JB |
991 | WARN(cur_state != state, |
992 | "FDI RX state assertion failure (expected %s, current %s)\n", | |
993 | state_string(state), state_string(cur_state)); | |
994 | } | |
995 | #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true) | |
996 | #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false) | |
997 | ||
998 | static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv, | |
999 | enum pipe pipe) | |
1000 | { | |
1001 | int reg; | |
1002 | u32 val; | |
1003 | ||
1004 | /* ILK FDI PLL is always enabled */ | |
1005 | if (dev_priv->info->gen == 5) | |
1006 | return; | |
1007 | ||
bf507ef7 | 1008 | /* On Haswell, DDI ports are responsible for the FDI PLL setup */ |
affa9354 | 1009 | if (HAS_DDI(dev_priv->dev)) |
bf507ef7 ED |
1010 | return; |
1011 | ||
040484af JB |
1012 | reg = FDI_TX_CTL(pipe); |
1013 | val = I915_READ(reg); | |
1014 | WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n"); | |
1015 | } | |
1016 | ||
1017 | static void assert_fdi_rx_pll_enabled(struct drm_i915_private *dev_priv, | |
1018 | enum pipe pipe) | |
1019 | { | |
1020 | int reg; | |
1021 | u32 val; | |
1022 | ||
1023 | reg = FDI_RX_CTL(pipe); | |
1024 | val = I915_READ(reg); | |
1025 | WARN(!(val & FDI_RX_PLL_ENABLE), "FDI RX PLL assertion failure, should be active but is disabled\n"); | |
1026 | } | |
1027 | ||
ea0760cf JB |
1028 | static void assert_panel_unlocked(struct drm_i915_private *dev_priv, |
1029 | enum pipe pipe) | |
1030 | { | |
1031 | int pp_reg, lvds_reg; | |
1032 | u32 val; | |
1033 | enum pipe panel_pipe = PIPE_A; | |
0de3b485 | 1034 | bool locked = true; |
ea0760cf JB |
1035 | |
1036 | if (HAS_PCH_SPLIT(dev_priv->dev)) { | |
1037 | pp_reg = PCH_PP_CONTROL; | |
1038 | lvds_reg = PCH_LVDS; | |
1039 | } else { | |
1040 | pp_reg = PP_CONTROL; | |
1041 | lvds_reg = LVDS; | |
1042 | } | |
1043 | ||
1044 | val = I915_READ(pp_reg); | |
1045 | if (!(val & PANEL_POWER_ON) || | |
1046 | ((val & PANEL_UNLOCK_REGS) == PANEL_UNLOCK_REGS)) | |
1047 | locked = false; | |
1048 | ||
1049 | if (I915_READ(lvds_reg) & LVDS_PIPEB_SELECT) | |
1050 | panel_pipe = PIPE_B; | |
1051 | ||
1052 | WARN(panel_pipe == pipe && locked, | |
1053 | "panel assertion failure, pipe %c regs locked\n", | |
9db4a9c7 | 1054 | pipe_name(pipe)); |
ea0760cf JB |
1055 | } |
1056 | ||
b840d907 JB |
1057 | void assert_pipe(struct drm_i915_private *dev_priv, |
1058 | enum pipe pipe, bool state) | |
b24e7179 JB |
1059 | { |
1060 | int reg; | |
1061 | u32 val; | |
63d7bbe9 | 1062 | bool cur_state; |
702e7a56 PZ |
1063 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1064 | pipe); | |
b24e7179 | 1065 | |
8e636784 DV |
1066 | /* if we need the pipe A quirk it must be always on */ |
1067 | if (pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) | |
1068 | state = true; | |
1069 | ||
b97186f0 PZ |
1070 | if (!intel_display_power_enabled(dev_priv->dev, |
1071 | POWER_DOMAIN_TRANSCODER(cpu_transcoder))) { | |
69310161 PZ |
1072 | cur_state = false; |
1073 | } else { | |
1074 | reg = PIPECONF(cpu_transcoder); | |
1075 | val = I915_READ(reg); | |
1076 | cur_state = !!(val & PIPECONF_ENABLE); | |
1077 | } | |
1078 | ||
63d7bbe9 JB |
1079 | WARN(cur_state != state, |
1080 | "pipe %c assertion failure (expected %s, current %s)\n", | |
9db4a9c7 | 1081 | pipe_name(pipe), state_string(state), state_string(cur_state)); |
b24e7179 JB |
1082 | } |
1083 | ||
931872fc CW |
1084 | static void assert_plane(struct drm_i915_private *dev_priv, |
1085 | enum plane plane, bool state) | |
b24e7179 JB |
1086 | { |
1087 | int reg; | |
1088 | u32 val; | |
931872fc | 1089 | bool cur_state; |
b24e7179 JB |
1090 | |
1091 | reg = DSPCNTR(plane); | |
1092 | val = I915_READ(reg); | |
931872fc CW |
1093 | cur_state = !!(val & DISPLAY_PLANE_ENABLE); |
1094 | WARN(cur_state != state, | |
1095 | "plane %c assertion failure (expected %s, current %s)\n", | |
1096 | plane_name(plane), state_string(state), state_string(cur_state)); | |
b24e7179 JB |
1097 | } |
1098 | ||
931872fc CW |
1099 | #define assert_plane_enabled(d, p) assert_plane(d, p, true) |
1100 | #define assert_plane_disabled(d, p) assert_plane(d, p, false) | |
1101 | ||
b24e7179 JB |
1102 | static void assert_planes_disabled(struct drm_i915_private *dev_priv, |
1103 | enum pipe pipe) | |
1104 | { | |
1105 | int reg, i; | |
1106 | u32 val; | |
1107 | int cur_pipe; | |
1108 | ||
19ec1358 | 1109 | /* Planes are fixed to pipes on ILK+ */ |
da6ecc5d | 1110 | if (HAS_PCH_SPLIT(dev_priv->dev) || IS_VALLEYVIEW(dev_priv->dev)) { |
28c05794 AJ |
1111 | reg = DSPCNTR(pipe); |
1112 | val = I915_READ(reg); | |
1113 | WARN((val & DISPLAY_PLANE_ENABLE), | |
1114 | "plane %c assertion failure, should be disabled but not\n", | |
1115 | plane_name(pipe)); | |
19ec1358 | 1116 | return; |
28c05794 | 1117 | } |
19ec1358 | 1118 | |
b24e7179 JB |
1119 | /* Need to check both planes against the pipe */ |
1120 | for (i = 0; i < 2; i++) { | |
1121 | reg = DSPCNTR(i); | |
1122 | val = I915_READ(reg); | |
1123 | cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >> | |
1124 | DISPPLANE_SEL_PIPE_SHIFT; | |
1125 | WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe, | |
9db4a9c7 JB |
1126 | "plane %c assertion failure, should be off on pipe %c but is still active\n", |
1127 | plane_name(i), pipe_name(pipe)); | |
b24e7179 JB |
1128 | } |
1129 | } | |
1130 | ||
19332d7a JB |
1131 | static void assert_sprites_disabled(struct drm_i915_private *dev_priv, |
1132 | enum pipe pipe) | |
1133 | { | |
1134 | int reg, i; | |
1135 | u32 val; | |
1136 | ||
1137 | if (!IS_VALLEYVIEW(dev_priv->dev)) | |
1138 | return; | |
1139 | ||
1140 | /* Need to check both planes against the pipe */ | |
1141 | for (i = 0; i < dev_priv->num_plane; i++) { | |
1142 | reg = SPCNTR(pipe, i); | |
1143 | val = I915_READ(reg); | |
1144 | WARN((val & SP_ENABLE), | |
06da8da2 VS |
1145 | "sprite %c assertion failure, should be off on pipe %c but is still active\n", |
1146 | sprite_name(pipe, i), pipe_name(pipe)); | |
19332d7a JB |
1147 | } |
1148 | } | |
1149 | ||
92f2584a JB |
1150 | static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv) |
1151 | { | |
1152 | u32 val; | |
1153 | bool enabled; | |
1154 | ||
9d82aa17 ED |
1155 | if (HAS_PCH_LPT(dev_priv->dev)) { |
1156 | DRM_DEBUG_DRIVER("LPT does not has PCH refclk, skipping check\n"); | |
1157 | return; | |
1158 | } | |
1159 | ||
92f2584a JB |
1160 | val = I915_READ(PCH_DREF_CONTROL); |
1161 | enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK | | |
1162 | DREF_SUPERSPREAD_SOURCE_MASK)); | |
1163 | WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n"); | |
1164 | } | |
1165 | ||
ab9412ba DV |
1166 | static void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv, |
1167 | enum pipe pipe) | |
92f2584a JB |
1168 | { |
1169 | int reg; | |
1170 | u32 val; | |
1171 | bool enabled; | |
1172 | ||
ab9412ba | 1173 | reg = PCH_TRANSCONF(pipe); |
92f2584a JB |
1174 | val = I915_READ(reg); |
1175 | enabled = !!(val & TRANS_ENABLE); | |
9db4a9c7 JB |
1176 | WARN(enabled, |
1177 | "transcoder assertion failed, should be off on pipe %c but is still active\n", | |
1178 | pipe_name(pipe)); | |
92f2584a JB |
1179 | } |
1180 | ||
4e634389 KP |
1181 | static bool dp_pipe_enabled(struct drm_i915_private *dev_priv, |
1182 | enum pipe pipe, u32 port_sel, u32 val) | |
f0575e92 KP |
1183 | { |
1184 | if ((val & DP_PORT_EN) == 0) | |
1185 | return false; | |
1186 | ||
1187 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1188 | u32 trans_dp_ctl_reg = TRANS_DP_CTL(pipe); | |
1189 | u32 trans_dp_ctl = I915_READ(trans_dp_ctl_reg); | |
1190 | if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel) | |
1191 | return false; | |
1192 | } else { | |
1193 | if ((val & DP_PIPE_MASK) != (pipe << 30)) | |
1194 | return false; | |
1195 | } | |
1196 | return true; | |
1197 | } | |
1198 | ||
1519b995 KP |
1199 | static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv, |
1200 | enum pipe pipe, u32 val) | |
1201 | { | |
dc0fa718 | 1202 | if ((val & SDVO_ENABLE) == 0) |
1519b995 KP |
1203 | return false; |
1204 | ||
1205 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
dc0fa718 | 1206 | if ((val & SDVO_PIPE_SEL_MASK_CPT) != SDVO_PIPE_SEL_CPT(pipe)) |
1519b995 KP |
1207 | return false; |
1208 | } else { | |
dc0fa718 | 1209 | if ((val & SDVO_PIPE_SEL_MASK) != SDVO_PIPE_SEL(pipe)) |
1519b995 KP |
1210 | return false; |
1211 | } | |
1212 | return true; | |
1213 | } | |
1214 | ||
1215 | static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv, | |
1216 | enum pipe pipe, u32 val) | |
1217 | { | |
1218 | if ((val & LVDS_PORT_EN) == 0) | |
1219 | return false; | |
1220 | ||
1221 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1222 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1223 | return false; | |
1224 | } else { | |
1225 | if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe)) | |
1226 | return false; | |
1227 | } | |
1228 | return true; | |
1229 | } | |
1230 | ||
1231 | static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv, | |
1232 | enum pipe pipe, u32 val) | |
1233 | { | |
1234 | if ((val & ADPA_DAC_ENABLE) == 0) | |
1235 | return false; | |
1236 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1237 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1238 | return false; | |
1239 | } else { | |
1240 | if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe)) | |
1241 | return false; | |
1242 | } | |
1243 | return true; | |
1244 | } | |
1245 | ||
291906f1 | 1246 | static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv, |
f0575e92 | 1247 | enum pipe pipe, int reg, u32 port_sel) |
291906f1 | 1248 | { |
47a05eca | 1249 | u32 val = I915_READ(reg); |
4e634389 | 1250 | WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val), |
291906f1 | 1251 | "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1252 | reg, pipe_name(pipe)); |
de9a35ab | 1253 | |
75c5da27 DV |
1254 | WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0 |
1255 | && (val & DP_PIPEB_SELECT), | |
de9a35ab | 1256 | "IBX PCH dp port still using transcoder B\n"); |
291906f1 JB |
1257 | } |
1258 | ||
1259 | static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv, | |
1260 | enum pipe pipe, int reg) | |
1261 | { | |
47a05eca | 1262 | u32 val = I915_READ(reg); |
b70ad586 | 1263 | WARN(hdmi_pipe_enabled(dev_priv, pipe, val), |
23c99e77 | 1264 | "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1265 | reg, pipe_name(pipe)); |
de9a35ab | 1266 | |
dc0fa718 | 1267 | WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_ENABLE) == 0 |
75c5da27 | 1268 | && (val & SDVO_PIPE_B_SELECT), |
de9a35ab | 1269 | "IBX PCH hdmi port still using transcoder B\n"); |
291906f1 JB |
1270 | } |
1271 | ||
1272 | static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, | |
1273 | enum pipe pipe) | |
1274 | { | |
1275 | int reg; | |
1276 | u32 val; | |
291906f1 | 1277 | |
f0575e92 KP |
1278 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); |
1279 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); | |
1280 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); | |
291906f1 JB |
1281 | |
1282 | reg = PCH_ADPA; | |
1283 | val = I915_READ(reg); | |
b70ad586 | 1284 | WARN(adpa_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1285 | "PCH VGA enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1286 | pipe_name(pipe)); |
291906f1 JB |
1287 | |
1288 | reg = PCH_LVDS; | |
1289 | val = I915_READ(reg); | |
b70ad586 | 1290 | WARN(lvds_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1291 | "PCH LVDS enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1292 | pipe_name(pipe)); |
291906f1 | 1293 | |
e2debe91 PZ |
1294 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIB); |
1295 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIC); | |
1296 | assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMID); | |
291906f1 JB |
1297 | } |
1298 | ||
63d7bbe9 JB |
1299 | /** |
1300 | * intel_enable_pll - enable a PLL | |
1301 | * @dev_priv: i915 private structure | |
1302 | * @pipe: pipe PLL to enable | |
1303 | * | |
1304 | * Enable @pipe's PLL so we can start pumping pixels from a plane. Check to | |
1305 | * make sure the PLL reg is writable first though, since the panel write | |
1306 | * protect mechanism may be enabled. | |
1307 | * | |
1308 | * Note! This is for pre-ILK only. | |
7434a255 TR |
1309 | * |
1310 | * Unfortunately needed by dvo_ns2501 since the dvo depends on it running. | |
63d7bbe9 JB |
1311 | */ |
1312 | static void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) | |
1313 | { | |
1314 | int reg; | |
1315 | u32 val; | |
1316 | ||
58c6eaa2 DV |
1317 | assert_pipe_disabled(dev_priv, pipe); |
1318 | ||
63d7bbe9 | 1319 | /* No really, not for ILK+ */ |
a0c4da24 | 1320 | BUG_ON(!IS_VALLEYVIEW(dev_priv->dev) && dev_priv->info->gen >= 5); |
63d7bbe9 JB |
1321 | |
1322 | /* PLL is protected by panel, make sure we can write it */ | |
1323 | if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev)) | |
1324 | assert_panel_unlocked(dev_priv, pipe); | |
1325 | ||
1326 | reg = DPLL(pipe); | |
1327 | val = I915_READ(reg); | |
1328 | val |= DPLL_VCO_ENABLE; | |
1329 | ||
1330 | /* We do this three times for luck */ | |
1331 | I915_WRITE(reg, val); | |
1332 | POSTING_READ(reg); | |
1333 | udelay(150); /* wait for warmup */ | |
1334 | I915_WRITE(reg, val); | |
1335 | POSTING_READ(reg); | |
1336 | udelay(150); /* wait for warmup */ | |
1337 | I915_WRITE(reg, val); | |
1338 | POSTING_READ(reg); | |
1339 | udelay(150); /* wait for warmup */ | |
1340 | } | |
1341 | ||
1342 | /** | |
1343 | * intel_disable_pll - disable a PLL | |
1344 | * @dev_priv: i915 private structure | |
1345 | * @pipe: pipe PLL to disable | |
1346 | * | |
1347 | * Disable the PLL for @pipe, making sure the pipe is off first. | |
1348 | * | |
1349 | * Note! This is for pre-ILK only. | |
1350 | */ | |
1351 | static void intel_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) | |
1352 | { | |
1353 | int reg; | |
1354 | u32 val; | |
1355 | ||
1356 | /* Don't disable pipe A or pipe A PLLs if needed */ | |
1357 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) | |
1358 | return; | |
1359 | ||
1360 | /* Make sure the pipe isn't still relying on us */ | |
1361 | assert_pipe_disabled(dev_priv, pipe); | |
1362 | ||
1363 | reg = DPLL(pipe); | |
1364 | val = I915_READ(reg); | |
1365 | val &= ~DPLL_VCO_ENABLE; | |
1366 | I915_WRITE(reg, val); | |
1367 | POSTING_READ(reg); | |
1368 | } | |
1369 | ||
89b667f8 JB |
1370 | void vlv_wait_port_ready(struct drm_i915_private *dev_priv, int port) |
1371 | { | |
1372 | u32 port_mask; | |
1373 | ||
1374 | if (!port) | |
1375 | port_mask = DPLL_PORTB_READY_MASK; | |
1376 | else | |
1377 | port_mask = DPLL_PORTC_READY_MASK; | |
1378 | ||
1379 | if (wait_for((I915_READ(DPLL(0)) & port_mask) == 0, 1000)) | |
1380 | WARN(1, "timed out waiting for port %c ready: 0x%08x\n", | |
1381 | 'B' + port, I915_READ(DPLL(0))); | |
1382 | } | |
1383 | ||
92f2584a | 1384 | /** |
b6b4e185 | 1385 | * ironlake_enable_pch_pll - enable PCH PLL |
92f2584a JB |
1386 | * @dev_priv: i915 private structure |
1387 | * @pipe: pipe PLL to enable | |
1388 | * | |
1389 | * The PCH PLL needs to be enabled before the PCH transcoder, since it | |
1390 | * drives the transcoder clock. | |
1391 | */ | |
b6b4e185 | 1392 | static void ironlake_enable_pch_pll(struct intel_crtc *intel_crtc) |
92f2584a | 1393 | { |
ee7b9f93 | 1394 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
48da64a8 | 1395 | struct intel_pch_pll *pll; |
92f2584a JB |
1396 | int reg; |
1397 | u32 val; | |
1398 | ||
48da64a8 | 1399 | /* PCH PLLs only available on ILK, SNB and IVB */ |
92f2584a | 1400 | BUG_ON(dev_priv->info->gen < 5); |
48da64a8 CW |
1401 | pll = intel_crtc->pch_pll; |
1402 | if (pll == NULL) | |
1403 | return; | |
1404 | ||
1405 | if (WARN_ON(pll->refcount == 0)) | |
1406 | return; | |
ee7b9f93 JB |
1407 | |
1408 | DRM_DEBUG_KMS("enable PCH PLL %x (active %d, on? %d)for crtc %d\n", | |
1409 | pll->pll_reg, pll->active, pll->on, | |
1410 | intel_crtc->base.base.id); | |
92f2584a JB |
1411 | |
1412 | /* PCH refclock must be enabled first */ | |
1413 | assert_pch_refclk_enabled(dev_priv); | |
1414 | ||
ee7b9f93 | 1415 | if (pll->active++ && pll->on) { |
92b27b08 | 1416 | assert_pch_pll_enabled(dev_priv, pll, NULL); |
ee7b9f93 JB |
1417 | return; |
1418 | } | |
1419 | ||
1420 | DRM_DEBUG_KMS("enabling PCH PLL %x\n", pll->pll_reg); | |
1421 | ||
1422 | reg = pll->pll_reg; | |
92f2584a JB |
1423 | val = I915_READ(reg); |
1424 | val |= DPLL_VCO_ENABLE; | |
1425 | I915_WRITE(reg, val); | |
1426 | POSTING_READ(reg); | |
1427 | udelay(200); | |
ee7b9f93 JB |
1428 | |
1429 | pll->on = true; | |
92f2584a JB |
1430 | } |
1431 | ||
ee7b9f93 | 1432 | static void intel_disable_pch_pll(struct intel_crtc *intel_crtc) |
92f2584a | 1433 | { |
ee7b9f93 JB |
1434 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
1435 | struct intel_pch_pll *pll = intel_crtc->pch_pll; | |
92f2584a | 1436 | int reg; |
ee7b9f93 | 1437 | u32 val; |
4c609cb8 | 1438 | |
92f2584a JB |
1439 | /* PCH only available on ILK+ */ |
1440 | BUG_ON(dev_priv->info->gen < 5); | |
ee7b9f93 JB |
1441 | if (pll == NULL) |
1442 | return; | |
92f2584a | 1443 | |
48da64a8 CW |
1444 | if (WARN_ON(pll->refcount == 0)) |
1445 | return; | |
7a419866 | 1446 | |
ee7b9f93 JB |
1447 | DRM_DEBUG_KMS("disable PCH PLL %x (active %d, on? %d) for crtc %d\n", |
1448 | pll->pll_reg, pll->active, pll->on, | |
1449 | intel_crtc->base.base.id); | |
7a419866 | 1450 | |
48da64a8 | 1451 | if (WARN_ON(pll->active == 0)) { |
92b27b08 | 1452 | assert_pch_pll_disabled(dev_priv, pll, NULL); |
48da64a8 CW |
1453 | return; |
1454 | } | |
1455 | ||
ee7b9f93 | 1456 | if (--pll->active) { |
92b27b08 | 1457 | assert_pch_pll_enabled(dev_priv, pll, NULL); |
7a419866 | 1458 | return; |
ee7b9f93 JB |
1459 | } |
1460 | ||
1461 | DRM_DEBUG_KMS("disabling PCH PLL %x\n", pll->pll_reg); | |
1462 | ||
1463 | /* Make sure transcoder isn't still depending on us */ | |
ab9412ba | 1464 | assert_pch_transcoder_disabled(dev_priv, intel_crtc->pipe); |
7a419866 | 1465 | |
ee7b9f93 | 1466 | reg = pll->pll_reg; |
92f2584a JB |
1467 | val = I915_READ(reg); |
1468 | val &= ~DPLL_VCO_ENABLE; | |
1469 | I915_WRITE(reg, val); | |
1470 | POSTING_READ(reg); | |
1471 | udelay(200); | |
ee7b9f93 JB |
1472 | |
1473 | pll->on = false; | |
92f2584a JB |
1474 | } |
1475 | ||
b8a4f404 PZ |
1476 | static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv, |
1477 | enum pipe pipe) | |
040484af | 1478 | { |
23670b32 | 1479 | struct drm_device *dev = dev_priv->dev; |
7c26e5c6 | 1480 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
23670b32 | 1481 | uint32_t reg, val, pipeconf_val; |
040484af JB |
1482 | |
1483 | /* PCH only available on ILK+ */ | |
1484 | BUG_ON(dev_priv->info->gen < 5); | |
1485 | ||
1486 | /* Make sure PCH DPLL is enabled */ | |
92b27b08 CW |
1487 | assert_pch_pll_enabled(dev_priv, |
1488 | to_intel_crtc(crtc)->pch_pll, | |
1489 | to_intel_crtc(crtc)); | |
040484af JB |
1490 | |
1491 | /* FDI must be feeding us bits for PCH ports */ | |
1492 | assert_fdi_tx_enabled(dev_priv, pipe); | |
1493 | assert_fdi_rx_enabled(dev_priv, pipe); | |
1494 | ||
23670b32 DV |
1495 | if (HAS_PCH_CPT(dev)) { |
1496 | /* Workaround: Set the timing override bit before enabling the | |
1497 | * pch transcoder. */ | |
1498 | reg = TRANS_CHICKEN2(pipe); | |
1499 | val = I915_READ(reg); | |
1500 | val |= TRANS_CHICKEN2_TIMING_OVERRIDE; | |
1501 | I915_WRITE(reg, val); | |
59c859d6 | 1502 | } |
23670b32 | 1503 | |
ab9412ba | 1504 | reg = PCH_TRANSCONF(pipe); |
040484af | 1505 | val = I915_READ(reg); |
5f7f726d | 1506 | pipeconf_val = I915_READ(PIPECONF(pipe)); |
e9bcff5c JB |
1507 | |
1508 | if (HAS_PCH_IBX(dev_priv->dev)) { | |
1509 | /* | |
1510 | * make the BPC in transcoder be consistent with | |
1511 | * that in pipeconf reg. | |
1512 | */ | |
dfd07d72 DV |
1513 | val &= ~PIPECONF_BPC_MASK; |
1514 | val |= pipeconf_val & PIPECONF_BPC_MASK; | |
e9bcff5c | 1515 | } |
5f7f726d PZ |
1516 | |
1517 | val &= ~TRANS_INTERLACE_MASK; | |
1518 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK) | |
7c26e5c6 PZ |
1519 | if (HAS_PCH_IBX(dev_priv->dev) && |
1520 | intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) | |
1521 | val |= TRANS_LEGACY_INTERLACED_ILK; | |
1522 | else | |
1523 | val |= TRANS_INTERLACED; | |
5f7f726d PZ |
1524 | else |
1525 | val |= TRANS_PROGRESSIVE; | |
1526 | ||
040484af JB |
1527 | I915_WRITE(reg, val | TRANS_ENABLE); |
1528 | if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100)) | |
4bb6f1f3 | 1529 | DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe)); |
040484af JB |
1530 | } |
1531 | ||
8fb033d7 | 1532 | static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv, |
937bb610 | 1533 | enum transcoder cpu_transcoder) |
040484af | 1534 | { |
8fb033d7 | 1535 | u32 val, pipeconf_val; |
8fb033d7 PZ |
1536 | |
1537 | /* PCH only available on ILK+ */ | |
1538 | BUG_ON(dev_priv->info->gen < 5); | |
1539 | ||
8fb033d7 | 1540 | /* FDI must be feeding us bits for PCH ports */ |
1a240d4d | 1541 | assert_fdi_tx_enabled(dev_priv, (enum pipe) cpu_transcoder); |
937bb610 | 1542 | assert_fdi_rx_enabled(dev_priv, TRANSCODER_A); |
8fb033d7 | 1543 | |
223a6fdf PZ |
1544 | /* Workaround: set timing override bit. */ |
1545 | val = I915_READ(_TRANSA_CHICKEN2); | |
23670b32 | 1546 | val |= TRANS_CHICKEN2_TIMING_OVERRIDE; |
223a6fdf PZ |
1547 | I915_WRITE(_TRANSA_CHICKEN2, val); |
1548 | ||
25f3ef11 | 1549 | val = TRANS_ENABLE; |
937bb610 | 1550 | pipeconf_val = I915_READ(PIPECONF(cpu_transcoder)); |
8fb033d7 | 1551 | |
9a76b1c6 PZ |
1552 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK_HSW) == |
1553 | PIPECONF_INTERLACED_ILK) | |
a35f2679 | 1554 | val |= TRANS_INTERLACED; |
8fb033d7 PZ |
1555 | else |
1556 | val |= TRANS_PROGRESSIVE; | |
1557 | ||
ab9412ba DV |
1558 | I915_WRITE(LPT_TRANSCONF, val); |
1559 | if (wait_for(I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE, 100)) | |
937bb610 | 1560 | DRM_ERROR("Failed to enable PCH transcoder\n"); |
8fb033d7 PZ |
1561 | } |
1562 | ||
b8a4f404 PZ |
1563 | static void ironlake_disable_pch_transcoder(struct drm_i915_private *dev_priv, |
1564 | enum pipe pipe) | |
040484af | 1565 | { |
23670b32 DV |
1566 | struct drm_device *dev = dev_priv->dev; |
1567 | uint32_t reg, val; | |
040484af JB |
1568 | |
1569 | /* FDI relies on the transcoder */ | |
1570 | assert_fdi_tx_disabled(dev_priv, pipe); | |
1571 | assert_fdi_rx_disabled(dev_priv, pipe); | |
1572 | ||
291906f1 JB |
1573 | /* Ports must be off as well */ |
1574 | assert_pch_ports_disabled(dev_priv, pipe); | |
1575 | ||
ab9412ba | 1576 | reg = PCH_TRANSCONF(pipe); |
040484af JB |
1577 | val = I915_READ(reg); |
1578 | val &= ~TRANS_ENABLE; | |
1579 | I915_WRITE(reg, val); | |
1580 | /* wait for PCH transcoder off, transcoder state */ | |
1581 | if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50)) | |
4bb6f1f3 | 1582 | DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe)); |
23670b32 DV |
1583 | |
1584 | if (!HAS_PCH_IBX(dev)) { | |
1585 | /* Workaround: Clear the timing override chicken bit again. */ | |
1586 | reg = TRANS_CHICKEN2(pipe); | |
1587 | val = I915_READ(reg); | |
1588 | val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE; | |
1589 | I915_WRITE(reg, val); | |
1590 | } | |
040484af JB |
1591 | } |
1592 | ||
ab4d966c | 1593 | static void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv) |
8fb033d7 | 1594 | { |
8fb033d7 PZ |
1595 | u32 val; |
1596 | ||
ab9412ba | 1597 | val = I915_READ(LPT_TRANSCONF); |
8fb033d7 | 1598 | val &= ~TRANS_ENABLE; |
ab9412ba | 1599 | I915_WRITE(LPT_TRANSCONF, val); |
8fb033d7 | 1600 | /* wait for PCH transcoder off, transcoder state */ |
ab9412ba | 1601 | if (wait_for((I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE) == 0, 50)) |
8a52fd9f | 1602 | DRM_ERROR("Failed to disable PCH transcoder\n"); |
223a6fdf PZ |
1603 | |
1604 | /* Workaround: clear timing override bit. */ | |
1605 | val = I915_READ(_TRANSA_CHICKEN2); | |
23670b32 | 1606 | val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE; |
223a6fdf | 1607 | I915_WRITE(_TRANSA_CHICKEN2, val); |
040484af JB |
1608 | } |
1609 | ||
b24e7179 | 1610 | /** |
309cfea8 | 1611 | * intel_enable_pipe - enable a pipe, asserting requirements |
b24e7179 JB |
1612 | * @dev_priv: i915 private structure |
1613 | * @pipe: pipe to enable | |
040484af | 1614 | * @pch_port: on ILK+, is this pipe driving a PCH port or not |
b24e7179 JB |
1615 | * |
1616 | * Enable @pipe, making sure that various hardware specific requirements | |
1617 | * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc. | |
1618 | * | |
1619 | * @pipe should be %PIPE_A or %PIPE_B. | |
1620 | * | |
1621 | * Will wait until the pipe is actually running (i.e. first vblank) before | |
1622 | * returning. | |
1623 | */ | |
040484af JB |
1624 | static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, |
1625 | bool pch_port) | |
b24e7179 | 1626 | { |
702e7a56 PZ |
1627 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1628 | pipe); | |
1a240d4d | 1629 | enum pipe pch_transcoder; |
b24e7179 JB |
1630 | int reg; |
1631 | u32 val; | |
1632 | ||
58c6eaa2 DV |
1633 | assert_planes_disabled(dev_priv, pipe); |
1634 | assert_sprites_disabled(dev_priv, pipe); | |
1635 | ||
681e5811 | 1636 | if (HAS_PCH_LPT(dev_priv->dev)) |
cc391bbb PZ |
1637 | pch_transcoder = TRANSCODER_A; |
1638 | else | |
1639 | pch_transcoder = pipe; | |
1640 | ||
b24e7179 JB |
1641 | /* |
1642 | * A pipe without a PLL won't actually be able to drive bits from | |
1643 | * a plane. On ILK+ the pipe PLLs are integrated, so we don't | |
1644 | * need the check. | |
1645 | */ | |
1646 | if (!HAS_PCH_SPLIT(dev_priv->dev)) | |
1647 | assert_pll_enabled(dev_priv, pipe); | |
040484af JB |
1648 | else { |
1649 | if (pch_port) { | |
1650 | /* if driving the PCH, we need FDI enabled */ | |
cc391bbb | 1651 | assert_fdi_rx_pll_enabled(dev_priv, pch_transcoder); |
1a240d4d DV |
1652 | assert_fdi_tx_pll_enabled(dev_priv, |
1653 | (enum pipe) cpu_transcoder); | |
040484af JB |
1654 | } |
1655 | /* FIXME: assert CPU port conditions for SNB+ */ | |
1656 | } | |
b24e7179 | 1657 | |
702e7a56 | 1658 | reg = PIPECONF(cpu_transcoder); |
b24e7179 | 1659 | val = I915_READ(reg); |
00d70b15 CW |
1660 | if (val & PIPECONF_ENABLE) |
1661 | return; | |
1662 | ||
1663 | I915_WRITE(reg, val | PIPECONF_ENABLE); | |
b24e7179 JB |
1664 | intel_wait_for_vblank(dev_priv->dev, pipe); |
1665 | } | |
1666 | ||
1667 | /** | |
309cfea8 | 1668 | * intel_disable_pipe - disable a pipe, asserting requirements |
b24e7179 JB |
1669 | * @dev_priv: i915 private structure |
1670 | * @pipe: pipe to disable | |
1671 | * | |
1672 | * Disable @pipe, making sure that various hardware specific requirements | |
1673 | * are met, if applicable, e.g. plane disabled, panel fitter off, etc. | |
1674 | * | |
1675 | * @pipe should be %PIPE_A or %PIPE_B. | |
1676 | * | |
1677 | * Will wait until the pipe has shut down before returning. | |
1678 | */ | |
1679 | static void intel_disable_pipe(struct drm_i915_private *dev_priv, | |
1680 | enum pipe pipe) | |
1681 | { | |
702e7a56 PZ |
1682 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1683 | pipe); | |
b24e7179 JB |
1684 | int reg; |
1685 | u32 val; | |
1686 | ||
1687 | /* | |
1688 | * Make sure planes won't keep trying to pump pixels to us, | |
1689 | * or we might hang the display. | |
1690 | */ | |
1691 | assert_planes_disabled(dev_priv, pipe); | |
19332d7a | 1692 | assert_sprites_disabled(dev_priv, pipe); |
b24e7179 JB |
1693 | |
1694 | /* Don't disable pipe A or pipe A PLLs if needed */ | |
1695 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) | |
1696 | return; | |
1697 | ||
702e7a56 | 1698 | reg = PIPECONF(cpu_transcoder); |
b24e7179 | 1699 | val = I915_READ(reg); |
00d70b15 CW |
1700 | if ((val & PIPECONF_ENABLE) == 0) |
1701 | return; | |
1702 | ||
1703 | I915_WRITE(reg, val & ~PIPECONF_ENABLE); | |
b24e7179 JB |
1704 | intel_wait_for_pipe_off(dev_priv->dev, pipe); |
1705 | } | |
1706 | ||
d74362c9 KP |
1707 | /* |
1708 | * Plane regs are double buffered, going from enabled->disabled needs a | |
1709 | * trigger in order to latch. The display address reg provides this. | |
1710 | */ | |
6f1d69b0 | 1711 | void intel_flush_display_plane(struct drm_i915_private *dev_priv, |
d74362c9 KP |
1712 | enum plane plane) |
1713 | { | |
14f86147 DL |
1714 | if (dev_priv->info->gen >= 4) |
1715 | I915_WRITE(DSPSURF(plane), I915_READ(DSPSURF(plane))); | |
1716 | else | |
1717 | I915_WRITE(DSPADDR(plane), I915_READ(DSPADDR(plane))); | |
d74362c9 KP |
1718 | } |
1719 | ||
b24e7179 JB |
1720 | /** |
1721 | * intel_enable_plane - enable a display plane on a given pipe | |
1722 | * @dev_priv: i915 private structure | |
1723 | * @plane: plane to enable | |
1724 | * @pipe: pipe being fed | |
1725 | * | |
1726 | * Enable @plane on @pipe, making sure that @pipe is running first. | |
1727 | */ | |
1728 | static void intel_enable_plane(struct drm_i915_private *dev_priv, | |
1729 | enum plane plane, enum pipe pipe) | |
1730 | { | |
1731 | int reg; | |
1732 | u32 val; | |
1733 | ||
1734 | /* If the pipe isn't enabled, we can't pump pixels and may hang */ | |
1735 | assert_pipe_enabled(dev_priv, pipe); | |
1736 | ||
1737 | reg = DSPCNTR(plane); | |
1738 | val = I915_READ(reg); | |
00d70b15 CW |
1739 | if (val & DISPLAY_PLANE_ENABLE) |
1740 | return; | |
1741 | ||
1742 | I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE); | |
d74362c9 | 1743 | intel_flush_display_plane(dev_priv, plane); |
b24e7179 JB |
1744 | intel_wait_for_vblank(dev_priv->dev, pipe); |
1745 | } | |
1746 | ||
b24e7179 JB |
1747 | /** |
1748 | * intel_disable_plane - disable a display plane | |
1749 | * @dev_priv: i915 private structure | |
1750 | * @plane: plane to disable | |
1751 | * @pipe: pipe consuming the data | |
1752 | * | |
1753 | * Disable @plane; should be an independent operation. | |
1754 | */ | |
1755 | static void intel_disable_plane(struct drm_i915_private *dev_priv, | |
1756 | enum plane plane, enum pipe pipe) | |
1757 | { | |
1758 | int reg; | |
1759 | u32 val; | |
1760 | ||
1761 | reg = DSPCNTR(plane); | |
1762 | val = I915_READ(reg); | |
00d70b15 CW |
1763 | if ((val & DISPLAY_PLANE_ENABLE) == 0) |
1764 | return; | |
1765 | ||
1766 | I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE); | |
b24e7179 JB |
1767 | intel_flush_display_plane(dev_priv, plane); |
1768 | intel_wait_for_vblank(dev_priv->dev, pipe); | |
1769 | } | |
1770 | ||
693db184 CW |
1771 | static bool need_vtd_wa(struct drm_device *dev) |
1772 | { | |
1773 | #ifdef CONFIG_INTEL_IOMMU | |
1774 | if (INTEL_INFO(dev)->gen >= 6 && intel_iommu_gfx_mapped) | |
1775 | return true; | |
1776 | #endif | |
1777 | return false; | |
1778 | } | |
1779 | ||
127bd2ac | 1780 | int |
48b956c5 | 1781 | intel_pin_and_fence_fb_obj(struct drm_device *dev, |
05394f39 | 1782 | struct drm_i915_gem_object *obj, |
919926ae | 1783 | struct intel_ring_buffer *pipelined) |
6b95a207 | 1784 | { |
ce453d81 | 1785 | struct drm_i915_private *dev_priv = dev->dev_private; |
6b95a207 KH |
1786 | u32 alignment; |
1787 | int ret; | |
1788 | ||
05394f39 | 1789 | switch (obj->tiling_mode) { |
6b95a207 | 1790 | case I915_TILING_NONE: |
534843da CW |
1791 | if (IS_BROADWATER(dev) || IS_CRESTLINE(dev)) |
1792 | alignment = 128 * 1024; | |
a6c45cf0 | 1793 | else if (INTEL_INFO(dev)->gen >= 4) |
534843da CW |
1794 | alignment = 4 * 1024; |
1795 | else | |
1796 | alignment = 64 * 1024; | |
6b95a207 KH |
1797 | break; |
1798 | case I915_TILING_X: | |
1799 | /* pin() will align the object as required by fence */ | |
1800 | alignment = 0; | |
1801 | break; | |
1802 | case I915_TILING_Y: | |
8bb6e959 DV |
1803 | /* Despite that we check this in framebuffer_init userspace can |
1804 | * screw us over and change the tiling after the fact. Only | |
1805 | * pinned buffers can't change their tiling. */ | |
1806 | DRM_DEBUG_DRIVER("Y tiled not allowed for scan out buffers\n"); | |
6b95a207 KH |
1807 | return -EINVAL; |
1808 | default: | |
1809 | BUG(); | |
1810 | } | |
1811 | ||
693db184 CW |
1812 | /* Note that the w/a also requires 64 PTE of padding following the |
1813 | * bo. We currently fill all unused PTE with the shadow page and so | |
1814 | * we should always have valid PTE following the scanout preventing | |
1815 | * the VT-d warning. | |
1816 | */ | |
1817 | if (need_vtd_wa(dev) && alignment < 256 * 1024) | |
1818 | alignment = 256 * 1024; | |
1819 | ||
ce453d81 | 1820 | dev_priv->mm.interruptible = false; |
2da3b9b9 | 1821 | ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined); |
48b956c5 | 1822 | if (ret) |
ce453d81 | 1823 | goto err_interruptible; |
6b95a207 KH |
1824 | |
1825 | /* Install a fence for tiled scan-out. Pre-i965 always needs a | |
1826 | * fence, whereas 965+ only requires a fence if using | |
1827 | * framebuffer compression. For simplicity, we always install | |
1828 | * a fence as the cost is not that onerous. | |
1829 | */ | |
06d98131 | 1830 | ret = i915_gem_object_get_fence(obj); |
9a5a53b3 CW |
1831 | if (ret) |
1832 | goto err_unpin; | |
1690e1eb | 1833 | |
9a5a53b3 | 1834 | i915_gem_object_pin_fence(obj); |
6b95a207 | 1835 | |
ce453d81 | 1836 | dev_priv->mm.interruptible = true; |
6b95a207 | 1837 | return 0; |
48b956c5 CW |
1838 | |
1839 | err_unpin: | |
1840 | i915_gem_object_unpin(obj); | |
ce453d81 CW |
1841 | err_interruptible: |
1842 | dev_priv->mm.interruptible = true; | |
48b956c5 | 1843 | return ret; |
6b95a207 KH |
1844 | } |
1845 | ||
1690e1eb CW |
1846 | void intel_unpin_fb_obj(struct drm_i915_gem_object *obj) |
1847 | { | |
1848 | i915_gem_object_unpin_fence(obj); | |
1849 | i915_gem_object_unpin(obj); | |
1850 | } | |
1851 | ||
c2c75131 DV |
1852 | /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel |
1853 | * is assumed to be a power-of-two. */ | |
bc752862 CW |
1854 | unsigned long intel_gen4_compute_page_offset(int *x, int *y, |
1855 | unsigned int tiling_mode, | |
1856 | unsigned int cpp, | |
1857 | unsigned int pitch) | |
c2c75131 | 1858 | { |
bc752862 CW |
1859 | if (tiling_mode != I915_TILING_NONE) { |
1860 | unsigned int tile_rows, tiles; | |
c2c75131 | 1861 | |
bc752862 CW |
1862 | tile_rows = *y / 8; |
1863 | *y %= 8; | |
c2c75131 | 1864 | |
bc752862 CW |
1865 | tiles = *x / (512/cpp); |
1866 | *x %= 512/cpp; | |
1867 | ||
1868 | return tile_rows * pitch * 8 + tiles * 4096; | |
1869 | } else { | |
1870 | unsigned int offset; | |
1871 | ||
1872 | offset = *y * pitch + *x * cpp; | |
1873 | *y = 0; | |
1874 | *x = (offset & 4095) / cpp; | |
1875 | return offset & -4096; | |
1876 | } | |
c2c75131 DV |
1877 | } |
1878 | ||
17638cd6 JB |
1879 | static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb, |
1880 | int x, int y) | |
81255565 JB |
1881 | { |
1882 | struct drm_device *dev = crtc->dev; | |
1883 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1884 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1885 | struct intel_framebuffer *intel_fb; | |
05394f39 | 1886 | struct drm_i915_gem_object *obj; |
81255565 | 1887 | int plane = intel_crtc->plane; |
e506a0c6 | 1888 | unsigned long linear_offset; |
81255565 | 1889 | u32 dspcntr; |
5eddb70b | 1890 | u32 reg; |
81255565 JB |
1891 | |
1892 | switch (plane) { | |
1893 | case 0: | |
1894 | case 1: | |
1895 | break; | |
1896 | default: | |
84f44ce7 | 1897 | DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane)); |
81255565 JB |
1898 | return -EINVAL; |
1899 | } | |
1900 | ||
1901 | intel_fb = to_intel_framebuffer(fb); | |
1902 | obj = intel_fb->obj; | |
81255565 | 1903 | |
5eddb70b CW |
1904 | reg = DSPCNTR(plane); |
1905 | dspcntr = I915_READ(reg); | |
81255565 JB |
1906 | /* Mask out pixel format bits in case we change it */ |
1907 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
57779d06 VS |
1908 | switch (fb->pixel_format) { |
1909 | case DRM_FORMAT_C8: | |
81255565 JB |
1910 | dspcntr |= DISPPLANE_8BPP; |
1911 | break; | |
57779d06 VS |
1912 | case DRM_FORMAT_XRGB1555: |
1913 | case DRM_FORMAT_ARGB1555: | |
1914 | dspcntr |= DISPPLANE_BGRX555; | |
81255565 | 1915 | break; |
57779d06 VS |
1916 | case DRM_FORMAT_RGB565: |
1917 | dspcntr |= DISPPLANE_BGRX565; | |
1918 | break; | |
1919 | case DRM_FORMAT_XRGB8888: | |
1920 | case DRM_FORMAT_ARGB8888: | |
1921 | dspcntr |= DISPPLANE_BGRX888; | |
1922 | break; | |
1923 | case DRM_FORMAT_XBGR8888: | |
1924 | case DRM_FORMAT_ABGR8888: | |
1925 | dspcntr |= DISPPLANE_RGBX888; | |
1926 | break; | |
1927 | case DRM_FORMAT_XRGB2101010: | |
1928 | case DRM_FORMAT_ARGB2101010: | |
1929 | dspcntr |= DISPPLANE_BGRX101010; | |
1930 | break; | |
1931 | case DRM_FORMAT_XBGR2101010: | |
1932 | case DRM_FORMAT_ABGR2101010: | |
1933 | dspcntr |= DISPPLANE_RGBX101010; | |
81255565 JB |
1934 | break; |
1935 | default: | |
baba133a | 1936 | BUG(); |
81255565 | 1937 | } |
57779d06 | 1938 | |
a6c45cf0 | 1939 | if (INTEL_INFO(dev)->gen >= 4) { |
05394f39 | 1940 | if (obj->tiling_mode != I915_TILING_NONE) |
81255565 JB |
1941 | dspcntr |= DISPPLANE_TILED; |
1942 | else | |
1943 | dspcntr &= ~DISPPLANE_TILED; | |
1944 | } | |
1945 | ||
5eddb70b | 1946 | I915_WRITE(reg, dspcntr); |
81255565 | 1947 | |
e506a0c6 | 1948 | linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); |
81255565 | 1949 | |
c2c75131 DV |
1950 | if (INTEL_INFO(dev)->gen >= 4) { |
1951 | intel_crtc->dspaddr_offset = | |
bc752862 CW |
1952 | intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode, |
1953 | fb->bits_per_pixel / 8, | |
1954 | fb->pitches[0]); | |
c2c75131 DV |
1955 | linear_offset -= intel_crtc->dspaddr_offset; |
1956 | } else { | |
e506a0c6 | 1957 | intel_crtc->dspaddr_offset = linear_offset; |
c2c75131 | 1958 | } |
e506a0c6 DV |
1959 | |
1960 | DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n", | |
1961 | obj->gtt_offset, linear_offset, x, y, fb->pitches[0]); | |
01f2c773 | 1962 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
a6c45cf0 | 1963 | if (INTEL_INFO(dev)->gen >= 4) { |
c2c75131 DV |
1964 | I915_MODIFY_DISPBASE(DSPSURF(plane), |
1965 | obj->gtt_offset + intel_crtc->dspaddr_offset); | |
5eddb70b | 1966 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
e506a0c6 | 1967 | I915_WRITE(DSPLINOFF(plane), linear_offset); |
5eddb70b | 1968 | } else |
e506a0c6 | 1969 | I915_WRITE(DSPADDR(plane), obj->gtt_offset + linear_offset); |
5eddb70b | 1970 | POSTING_READ(reg); |
81255565 | 1971 | |
17638cd6 JB |
1972 | return 0; |
1973 | } | |
1974 | ||
1975 | static int ironlake_update_plane(struct drm_crtc *crtc, | |
1976 | struct drm_framebuffer *fb, int x, int y) | |
1977 | { | |
1978 | struct drm_device *dev = crtc->dev; | |
1979 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1980 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1981 | struct intel_framebuffer *intel_fb; | |
1982 | struct drm_i915_gem_object *obj; | |
1983 | int plane = intel_crtc->plane; | |
e506a0c6 | 1984 | unsigned long linear_offset; |
17638cd6 JB |
1985 | u32 dspcntr; |
1986 | u32 reg; | |
1987 | ||
1988 | switch (plane) { | |
1989 | case 0: | |
1990 | case 1: | |
27f8227b | 1991 | case 2: |
17638cd6 JB |
1992 | break; |
1993 | default: | |
84f44ce7 | 1994 | DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane)); |
17638cd6 JB |
1995 | return -EINVAL; |
1996 | } | |
1997 | ||
1998 | intel_fb = to_intel_framebuffer(fb); | |
1999 | obj = intel_fb->obj; | |
2000 | ||
2001 | reg = DSPCNTR(plane); | |
2002 | dspcntr = I915_READ(reg); | |
2003 | /* Mask out pixel format bits in case we change it */ | |
2004 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
57779d06 VS |
2005 | switch (fb->pixel_format) { |
2006 | case DRM_FORMAT_C8: | |
17638cd6 JB |
2007 | dspcntr |= DISPPLANE_8BPP; |
2008 | break; | |
57779d06 VS |
2009 | case DRM_FORMAT_RGB565: |
2010 | dspcntr |= DISPPLANE_BGRX565; | |
17638cd6 | 2011 | break; |
57779d06 VS |
2012 | case DRM_FORMAT_XRGB8888: |
2013 | case DRM_FORMAT_ARGB8888: | |
2014 | dspcntr |= DISPPLANE_BGRX888; | |
2015 | break; | |
2016 | case DRM_FORMAT_XBGR8888: | |
2017 | case DRM_FORMAT_ABGR8888: | |
2018 | dspcntr |= DISPPLANE_RGBX888; | |
2019 | break; | |
2020 | case DRM_FORMAT_XRGB2101010: | |
2021 | case DRM_FORMAT_ARGB2101010: | |
2022 | dspcntr |= DISPPLANE_BGRX101010; | |
2023 | break; | |
2024 | case DRM_FORMAT_XBGR2101010: | |
2025 | case DRM_FORMAT_ABGR2101010: | |
2026 | dspcntr |= DISPPLANE_RGBX101010; | |
17638cd6 JB |
2027 | break; |
2028 | default: | |
baba133a | 2029 | BUG(); |
17638cd6 JB |
2030 | } |
2031 | ||
2032 | if (obj->tiling_mode != I915_TILING_NONE) | |
2033 | dspcntr |= DISPPLANE_TILED; | |
2034 | else | |
2035 | dspcntr &= ~DISPPLANE_TILED; | |
2036 | ||
2037 | /* must disable */ | |
2038 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; | |
2039 | ||
2040 | I915_WRITE(reg, dspcntr); | |
2041 | ||
e506a0c6 | 2042 | linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); |
c2c75131 | 2043 | intel_crtc->dspaddr_offset = |
bc752862 CW |
2044 | intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode, |
2045 | fb->bits_per_pixel / 8, | |
2046 | fb->pitches[0]); | |
c2c75131 | 2047 | linear_offset -= intel_crtc->dspaddr_offset; |
17638cd6 | 2048 | |
e506a0c6 DV |
2049 | DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n", |
2050 | obj->gtt_offset, linear_offset, x, y, fb->pitches[0]); | |
01f2c773 | 2051 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
c2c75131 DV |
2052 | I915_MODIFY_DISPBASE(DSPSURF(plane), |
2053 | obj->gtt_offset + intel_crtc->dspaddr_offset); | |
bc1c91eb DL |
2054 | if (IS_HASWELL(dev)) { |
2055 | I915_WRITE(DSPOFFSET(plane), (y << 16) | x); | |
2056 | } else { | |
2057 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); | |
2058 | I915_WRITE(DSPLINOFF(plane), linear_offset); | |
2059 | } | |
17638cd6 JB |
2060 | POSTING_READ(reg); |
2061 | ||
2062 | return 0; | |
2063 | } | |
2064 | ||
2065 | /* Assume fb object is pinned & idle & fenced and just update base pointers */ | |
2066 | static int | |
2067 | intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb, | |
2068 | int x, int y, enum mode_set_atomic state) | |
2069 | { | |
2070 | struct drm_device *dev = crtc->dev; | |
2071 | struct drm_i915_private *dev_priv = dev->dev_private; | |
17638cd6 | 2072 | |
6b8e6ed0 CW |
2073 | if (dev_priv->display.disable_fbc) |
2074 | dev_priv->display.disable_fbc(dev); | |
3dec0095 | 2075 | intel_increase_pllclock(crtc); |
81255565 | 2076 | |
6b8e6ed0 | 2077 | return dev_priv->display.update_plane(crtc, fb, x, y); |
81255565 JB |
2078 | } |
2079 | ||
96a02917 VS |
2080 | void intel_display_handle_reset(struct drm_device *dev) |
2081 | { | |
2082 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2083 | struct drm_crtc *crtc; | |
2084 | ||
2085 | /* | |
2086 | * Flips in the rings have been nuked by the reset, | |
2087 | * so complete all pending flips so that user space | |
2088 | * will get its events and not get stuck. | |
2089 | * | |
2090 | * Also update the base address of all primary | |
2091 | * planes to the the last fb to make sure we're | |
2092 | * showing the correct fb after a reset. | |
2093 | * | |
2094 | * Need to make two loops over the crtcs so that we | |
2095 | * don't try to grab a crtc mutex before the | |
2096 | * pending_flip_queue really got woken up. | |
2097 | */ | |
2098 | ||
2099 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
2100 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2101 | enum plane plane = intel_crtc->plane; | |
2102 | ||
2103 | intel_prepare_page_flip(dev, plane); | |
2104 | intel_finish_page_flip_plane(dev, plane); | |
2105 | } | |
2106 | ||
2107 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
2108 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2109 | ||
2110 | mutex_lock(&crtc->mutex); | |
2111 | if (intel_crtc->active) | |
2112 | dev_priv->display.update_plane(crtc, crtc->fb, | |
2113 | crtc->x, crtc->y); | |
2114 | mutex_unlock(&crtc->mutex); | |
2115 | } | |
2116 | } | |
2117 | ||
14667a4b CW |
2118 | static int |
2119 | intel_finish_fb(struct drm_framebuffer *old_fb) | |
2120 | { | |
2121 | struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj; | |
2122 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; | |
2123 | bool was_interruptible = dev_priv->mm.interruptible; | |
2124 | int ret; | |
2125 | ||
14667a4b CW |
2126 | /* Big Hammer, we also need to ensure that any pending |
2127 | * MI_WAIT_FOR_EVENT inside a user batch buffer on the | |
2128 | * current scanout is retired before unpinning the old | |
2129 | * framebuffer. | |
2130 | * | |
2131 | * This should only fail upon a hung GPU, in which case we | |
2132 | * can safely continue. | |
2133 | */ | |
2134 | dev_priv->mm.interruptible = false; | |
2135 | ret = i915_gem_object_finish_gpu(obj); | |
2136 | dev_priv->mm.interruptible = was_interruptible; | |
2137 | ||
2138 | return ret; | |
2139 | } | |
2140 | ||
198598d0 VS |
2141 | static void intel_crtc_update_sarea_pos(struct drm_crtc *crtc, int x, int y) |
2142 | { | |
2143 | struct drm_device *dev = crtc->dev; | |
2144 | struct drm_i915_master_private *master_priv; | |
2145 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2146 | ||
2147 | if (!dev->primary->master) | |
2148 | return; | |
2149 | ||
2150 | master_priv = dev->primary->master->driver_priv; | |
2151 | if (!master_priv->sarea_priv) | |
2152 | return; | |
2153 | ||
2154 | switch (intel_crtc->pipe) { | |
2155 | case 0: | |
2156 | master_priv->sarea_priv->pipeA_x = x; | |
2157 | master_priv->sarea_priv->pipeA_y = y; | |
2158 | break; | |
2159 | case 1: | |
2160 | master_priv->sarea_priv->pipeB_x = x; | |
2161 | master_priv->sarea_priv->pipeB_y = y; | |
2162 | break; | |
2163 | default: | |
2164 | break; | |
2165 | } | |
2166 | } | |
2167 | ||
5c3b82e2 | 2168 | static int |
3c4fdcfb | 2169 | intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, |
94352cf9 | 2170 | struct drm_framebuffer *fb) |
79e53945 JB |
2171 | { |
2172 | struct drm_device *dev = crtc->dev; | |
6b8e6ed0 | 2173 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 | 2174 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
94352cf9 | 2175 | struct drm_framebuffer *old_fb; |
5c3b82e2 | 2176 | int ret; |
79e53945 JB |
2177 | |
2178 | /* no fb bound */ | |
94352cf9 | 2179 | if (!fb) { |
a5071c2f | 2180 | DRM_ERROR("No FB bound\n"); |
5c3b82e2 CW |
2181 | return 0; |
2182 | } | |
2183 | ||
7eb552ae | 2184 | if (intel_crtc->plane > INTEL_INFO(dev)->num_pipes) { |
84f44ce7 VS |
2185 | DRM_ERROR("no plane for crtc: plane %c, num_pipes %d\n", |
2186 | plane_name(intel_crtc->plane), | |
2187 | INTEL_INFO(dev)->num_pipes); | |
5c3b82e2 | 2188 | return -EINVAL; |
79e53945 JB |
2189 | } |
2190 | ||
5c3b82e2 | 2191 | mutex_lock(&dev->struct_mutex); |
265db958 | 2192 | ret = intel_pin_and_fence_fb_obj(dev, |
94352cf9 | 2193 | to_intel_framebuffer(fb)->obj, |
919926ae | 2194 | NULL); |
5c3b82e2 CW |
2195 | if (ret != 0) { |
2196 | mutex_unlock(&dev->struct_mutex); | |
a5071c2f | 2197 | DRM_ERROR("pin & fence failed\n"); |
5c3b82e2 CW |
2198 | return ret; |
2199 | } | |
79e53945 | 2200 | |
94352cf9 | 2201 | ret = dev_priv->display.update_plane(crtc, fb, x, y); |
4e6cfefc | 2202 | if (ret) { |
94352cf9 | 2203 | intel_unpin_fb_obj(to_intel_framebuffer(fb)->obj); |
5c3b82e2 | 2204 | mutex_unlock(&dev->struct_mutex); |
a5071c2f | 2205 | DRM_ERROR("failed to update base address\n"); |
4e6cfefc | 2206 | return ret; |
79e53945 | 2207 | } |
3c4fdcfb | 2208 | |
94352cf9 DV |
2209 | old_fb = crtc->fb; |
2210 | crtc->fb = fb; | |
6c4c86f5 DV |
2211 | crtc->x = x; |
2212 | crtc->y = y; | |
94352cf9 | 2213 | |
b7f1de28 | 2214 | if (old_fb) { |
d7697eea DV |
2215 | if (intel_crtc->active && old_fb != fb) |
2216 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
1690e1eb | 2217 | intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj); |
b7f1de28 | 2218 | } |
652c393a | 2219 | |
6b8e6ed0 | 2220 | intel_update_fbc(dev); |
5c3b82e2 | 2221 | mutex_unlock(&dev->struct_mutex); |
79e53945 | 2222 | |
198598d0 | 2223 | intel_crtc_update_sarea_pos(crtc, x, y); |
5c3b82e2 CW |
2224 | |
2225 | return 0; | |
79e53945 JB |
2226 | } |
2227 | ||
5e84e1a4 ZW |
2228 | static void intel_fdi_normal_train(struct drm_crtc *crtc) |
2229 | { | |
2230 | struct drm_device *dev = crtc->dev; | |
2231 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2232 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2233 | int pipe = intel_crtc->pipe; | |
2234 | u32 reg, temp; | |
2235 | ||
2236 | /* enable normal train */ | |
2237 | reg = FDI_TX_CTL(pipe); | |
2238 | temp = I915_READ(reg); | |
61e499bf | 2239 | if (IS_IVYBRIDGE(dev)) { |
357555c0 JB |
2240 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
2241 | temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE; | |
61e499bf KP |
2242 | } else { |
2243 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2244 | temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE; | |
357555c0 | 2245 | } |
5e84e1a4 ZW |
2246 | I915_WRITE(reg, temp); |
2247 | ||
2248 | reg = FDI_RX_CTL(pipe); | |
2249 | temp = I915_READ(reg); | |
2250 | if (HAS_PCH_CPT(dev)) { | |
2251 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2252 | temp |= FDI_LINK_TRAIN_NORMAL_CPT; | |
2253 | } else { | |
2254 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2255 | temp |= FDI_LINK_TRAIN_NONE; | |
2256 | } | |
2257 | I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); | |
2258 | ||
2259 | /* wait one idle pattern time */ | |
2260 | POSTING_READ(reg); | |
2261 | udelay(1000); | |
357555c0 JB |
2262 | |
2263 | /* IVB wants error correction enabled */ | |
2264 | if (IS_IVYBRIDGE(dev)) | |
2265 | I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE | | |
2266 | FDI_FE_ERRC_ENABLE); | |
5e84e1a4 ZW |
2267 | } |
2268 | ||
1e833f40 DV |
2269 | static bool pipe_has_enabled_pch(struct intel_crtc *intel_crtc) |
2270 | { | |
2271 | return intel_crtc->base.enabled && intel_crtc->config.has_pch_encoder; | |
2272 | } | |
2273 | ||
01a415fd DV |
2274 | static void ivb_modeset_global_resources(struct drm_device *dev) |
2275 | { | |
2276 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2277 | struct intel_crtc *pipe_B_crtc = | |
2278 | to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]); | |
2279 | struct intel_crtc *pipe_C_crtc = | |
2280 | to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_C]); | |
2281 | uint32_t temp; | |
2282 | ||
1e833f40 DV |
2283 | /* |
2284 | * When everything is off disable fdi C so that we could enable fdi B | |
2285 | * with all lanes. Note that we don't care about enabled pipes without | |
2286 | * an enabled pch encoder. | |
2287 | */ | |
2288 | if (!pipe_has_enabled_pch(pipe_B_crtc) && | |
2289 | !pipe_has_enabled_pch(pipe_C_crtc)) { | |
01a415fd DV |
2290 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE); |
2291 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE); | |
2292 | ||
2293 | temp = I915_READ(SOUTH_CHICKEN1); | |
2294 | temp &= ~FDI_BC_BIFURCATION_SELECT; | |
2295 | DRM_DEBUG_KMS("disabling fdi C rx\n"); | |
2296 | I915_WRITE(SOUTH_CHICKEN1, temp); | |
2297 | } | |
2298 | } | |
2299 | ||
8db9d77b ZW |
2300 | /* The FDI link training functions for ILK/Ibexpeak. */ |
2301 | static void ironlake_fdi_link_train(struct drm_crtc *crtc) | |
2302 | { | |
2303 | struct drm_device *dev = crtc->dev; | |
2304 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2305 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2306 | int pipe = intel_crtc->pipe; | |
0fc932b8 | 2307 | int plane = intel_crtc->plane; |
5eddb70b | 2308 | u32 reg, temp, tries; |
8db9d77b | 2309 | |
0fc932b8 JB |
2310 | /* FDI needs bits from pipe & plane first */ |
2311 | assert_pipe_enabled(dev_priv, pipe); | |
2312 | assert_plane_enabled(dev_priv, plane); | |
2313 | ||
e1a44743 AJ |
2314 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
2315 | for train result */ | |
5eddb70b CW |
2316 | reg = FDI_RX_IMR(pipe); |
2317 | temp = I915_READ(reg); | |
e1a44743 AJ |
2318 | temp &= ~FDI_RX_SYMBOL_LOCK; |
2319 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
2320 | I915_WRITE(reg, temp); |
2321 | I915_READ(reg); | |
e1a44743 AJ |
2322 | udelay(150); |
2323 | ||
8db9d77b | 2324 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
2325 | reg = FDI_TX_CTL(pipe); |
2326 | temp = I915_READ(reg); | |
627eb5a3 DV |
2327 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
2328 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes); | |
8db9d77b ZW |
2329 | temp &= ~FDI_LINK_TRAIN_NONE; |
2330 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b | 2331 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 2332 | |
5eddb70b CW |
2333 | reg = FDI_RX_CTL(pipe); |
2334 | temp = I915_READ(reg); | |
8db9d77b ZW |
2335 | temp &= ~FDI_LINK_TRAIN_NONE; |
2336 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b CW |
2337 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2338 | ||
2339 | POSTING_READ(reg); | |
8db9d77b ZW |
2340 | udelay(150); |
2341 | ||
5b2adf89 | 2342 | /* Ironlake workaround, enable clock pointer after FDI enable*/ |
8f5718a6 DV |
2343 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); |
2344 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR | | |
2345 | FDI_RX_PHASE_SYNC_POINTER_EN); | |
5b2adf89 | 2346 | |
5eddb70b | 2347 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 2348 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 2349 | temp = I915_READ(reg); |
8db9d77b ZW |
2350 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2351 | ||
2352 | if ((temp & FDI_RX_BIT_LOCK)) { | |
2353 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
5eddb70b | 2354 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
8db9d77b ZW |
2355 | break; |
2356 | } | |
8db9d77b | 2357 | } |
e1a44743 | 2358 | if (tries == 5) |
5eddb70b | 2359 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
2360 | |
2361 | /* Train 2 */ | |
5eddb70b CW |
2362 | reg = FDI_TX_CTL(pipe); |
2363 | temp = I915_READ(reg); | |
8db9d77b ZW |
2364 | temp &= ~FDI_LINK_TRAIN_NONE; |
2365 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 2366 | I915_WRITE(reg, temp); |
8db9d77b | 2367 | |
5eddb70b CW |
2368 | reg = FDI_RX_CTL(pipe); |
2369 | temp = I915_READ(reg); | |
8db9d77b ZW |
2370 | temp &= ~FDI_LINK_TRAIN_NONE; |
2371 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 2372 | I915_WRITE(reg, temp); |
8db9d77b | 2373 | |
5eddb70b CW |
2374 | POSTING_READ(reg); |
2375 | udelay(150); | |
8db9d77b | 2376 | |
5eddb70b | 2377 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 2378 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 2379 | temp = I915_READ(reg); |
8db9d77b ZW |
2380 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2381 | ||
2382 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
5eddb70b | 2383 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
8db9d77b ZW |
2384 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
2385 | break; | |
2386 | } | |
8db9d77b | 2387 | } |
e1a44743 | 2388 | if (tries == 5) |
5eddb70b | 2389 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
2390 | |
2391 | DRM_DEBUG_KMS("FDI train done\n"); | |
5c5313c8 | 2392 | |
8db9d77b ZW |
2393 | } |
2394 | ||
0206e353 | 2395 | static const int snb_b_fdi_train_param[] = { |
8db9d77b ZW |
2396 | FDI_LINK_TRAIN_400MV_0DB_SNB_B, |
2397 | FDI_LINK_TRAIN_400MV_6DB_SNB_B, | |
2398 | FDI_LINK_TRAIN_600MV_3_5DB_SNB_B, | |
2399 | FDI_LINK_TRAIN_800MV_0DB_SNB_B, | |
2400 | }; | |
2401 | ||
2402 | /* The FDI link training functions for SNB/Cougarpoint. */ | |
2403 | static void gen6_fdi_link_train(struct drm_crtc *crtc) | |
2404 | { | |
2405 | struct drm_device *dev = crtc->dev; | |
2406 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2407 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2408 | int pipe = intel_crtc->pipe; | |
fa37d39e | 2409 | u32 reg, temp, i, retry; |
8db9d77b | 2410 | |
e1a44743 AJ |
2411 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
2412 | for train result */ | |
5eddb70b CW |
2413 | reg = FDI_RX_IMR(pipe); |
2414 | temp = I915_READ(reg); | |
e1a44743 AJ |
2415 | temp &= ~FDI_RX_SYMBOL_LOCK; |
2416 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
2417 | I915_WRITE(reg, temp); |
2418 | ||
2419 | POSTING_READ(reg); | |
e1a44743 AJ |
2420 | udelay(150); |
2421 | ||
8db9d77b | 2422 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
2423 | reg = FDI_TX_CTL(pipe); |
2424 | temp = I915_READ(reg); | |
627eb5a3 DV |
2425 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
2426 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes); | |
8db9d77b ZW |
2427 | temp &= ~FDI_LINK_TRAIN_NONE; |
2428 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2429 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2430 | /* SNB-B */ | |
2431 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
5eddb70b | 2432 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 2433 | |
d74cf324 DV |
2434 | I915_WRITE(FDI_RX_MISC(pipe), |
2435 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); | |
2436 | ||
5eddb70b CW |
2437 | reg = FDI_RX_CTL(pipe); |
2438 | temp = I915_READ(reg); | |
8db9d77b ZW |
2439 | if (HAS_PCH_CPT(dev)) { |
2440 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2441 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
2442 | } else { | |
2443 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2444 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2445 | } | |
5eddb70b CW |
2446 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2447 | ||
2448 | POSTING_READ(reg); | |
8db9d77b ZW |
2449 | udelay(150); |
2450 | ||
0206e353 | 2451 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
2452 | reg = FDI_TX_CTL(pipe); |
2453 | temp = I915_READ(reg); | |
8db9d77b ZW |
2454 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
2455 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
2456 | I915_WRITE(reg, temp); |
2457 | ||
2458 | POSTING_READ(reg); | |
8db9d77b ZW |
2459 | udelay(500); |
2460 | ||
fa37d39e SP |
2461 | for (retry = 0; retry < 5; retry++) { |
2462 | reg = FDI_RX_IIR(pipe); | |
2463 | temp = I915_READ(reg); | |
2464 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2465 | if (temp & FDI_RX_BIT_LOCK) { | |
2466 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
2467 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
2468 | break; | |
2469 | } | |
2470 | udelay(50); | |
8db9d77b | 2471 | } |
fa37d39e SP |
2472 | if (retry < 5) |
2473 | break; | |
8db9d77b ZW |
2474 | } |
2475 | if (i == 4) | |
5eddb70b | 2476 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
2477 | |
2478 | /* Train 2 */ | |
5eddb70b CW |
2479 | reg = FDI_TX_CTL(pipe); |
2480 | temp = I915_READ(reg); | |
8db9d77b ZW |
2481 | temp &= ~FDI_LINK_TRAIN_NONE; |
2482 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
2483 | if (IS_GEN6(dev)) { | |
2484 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2485 | /* SNB-B */ | |
2486 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
2487 | } | |
5eddb70b | 2488 | I915_WRITE(reg, temp); |
8db9d77b | 2489 | |
5eddb70b CW |
2490 | reg = FDI_RX_CTL(pipe); |
2491 | temp = I915_READ(reg); | |
8db9d77b ZW |
2492 | if (HAS_PCH_CPT(dev)) { |
2493 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2494 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
2495 | } else { | |
2496 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2497 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
2498 | } | |
5eddb70b CW |
2499 | I915_WRITE(reg, temp); |
2500 | ||
2501 | POSTING_READ(reg); | |
8db9d77b ZW |
2502 | udelay(150); |
2503 | ||
0206e353 | 2504 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
2505 | reg = FDI_TX_CTL(pipe); |
2506 | temp = I915_READ(reg); | |
8db9d77b ZW |
2507 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
2508 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
2509 | I915_WRITE(reg, temp); |
2510 | ||
2511 | POSTING_READ(reg); | |
8db9d77b ZW |
2512 | udelay(500); |
2513 | ||
fa37d39e SP |
2514 | for (retry = 0; retry < 5; retry++) { |
2515 | reg = FDI_RX_IIR(pipe); | |
2516 | temp = I915_READ(reg); | |
2517 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2518 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
2519 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
2520 | DRM_DEBUG_KMS("FDI train 2 done.\n"); | |
2521 | break; | |
2522 | } | |
2523 | udelay(50); | |
8db9d77b | 2524 | } |
fa37d39e SP |
2525 | if (retry < 5) |
2526 | break; | |
8db9d77b ZW |
2527 | } |
2528 | if (i == 4) | |
5eddb70b | 2529 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
2530 | |
2531 | DRM_DEBUG_KMS("FDI train done.\n"); | |
2532 | } | |
2533 | ||
357555c0 JB |
2534 | /* Manual link training for Ivy Bridge A0 parts */ |
2535 | static void ivb_manual_fdi_link_train(struct drm_crtc *crtc) | |
2536 | { | |
2537 | struct drm_device *dev = crtc->dev; | |
2538 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2539 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2540 | int pipe = intel_crtc->pipe; | |
2541 | u32 reg, temp, i; | |
2542 | ||
2543 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit | |
2544 | for train result */ | |
2545 | reg = FDI_RX_IMR(pipe); | |
2546 | temp = I915_READ(reg); | |
2547 | temp &= ~FDI_RX_SYMBOL_LOCK; | |
2548 | temp &= ~FDI_RX_BIT_LOCK; | |
2549 | I915_WRITE(reg, temp); | |
2550 | ||
2551 | POSTING_READ(reg); | |
2552 | udelay(150); | |
2553 | ||
01a415fd DV |
2554 | DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n", |
2555 | I915_READ(FDI_RX_IIR(pipe))); | |
2556 | ||
357555c0 JB |
2557 | /* enable CPU FDI TX and PCH FDI RX */ |
2558 | reg = FDI_TX_CTL(pipe); | |
2559 | temp = I915_READ(reg); | |
627eb5a3 DV |
2560 | temp &= ~FDI_DP_PORT_WIDTH_MASK; |
2561 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes); | |
357555c0 JB |
2562 | temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB); |
2563 | temp |= FDI_LINK_TRAIN_PATTERN_1_IVB; | |
2564 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2565 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
c4f9c4c2 | 2566 | temp |= FDI_COMPOSITE_SYNC; |
357555c0 JB |
2567 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
2568 | ||
d74cf324 DV |
2569 | I915_WRITE(FDI_RX_MISC(pipe), |
2570 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); | |
2571 | ||
357555c0 JB |
2572 | reg = FDI_RX_CTL(pipe); |
2573 | temp = I915_READ(reg); | |
2574 | temp &= ~FDI_LINK_TRAIN_AUTO; | |
2575 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2576 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
c4f9c4c2 | 2577 | temp |= FDI_COMPOSITE_SYNC; |
357555c0 JB |
2578 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2579 | ||
2580 | POSTING_READ(reg); | |
2581 | udelay(150); | |
2582 | ||
0206e353 | 2583 | for (i = 0; i < 4; i++) { |
357555c0 JB |
2584 | reg = FDI_TX_CTL(pipe); |
2585 | temp = I915_READ(reg); | |
2586 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2587 | temp |= snb_b_fdi_train_param[i]; | |
2588 | I915_WRITE(reg, temp); | |
2589 | ||
2590 | POSTING_READ(reg); | |
2591 | udelay(500); | |
2592 | ||
2593 | reg = FDI_RX_IIR(pipe); | |
2594 | temp = I915_READ(reg); | |
2595 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2596 | ||
2597 | if (temp & FDI_RX_BIT_LOCK || | |
2598 | (I915_READ(reg) & FDI_RX_BIT_LOCK)) { | |
2599 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
01a415fd | 2600 | DRM_DEBUG_KMS("FDI train 1 done, level %i.\n", i); |
357555c0 JB |
2601 | break; |
2602 | } | |
2603 | } | |
2604 | if (i == 4) | |
2605 | DRM_ERROR("FDI train 1 fail!\n"); | |
2606 | ||
2607 | /* Train 2 */ | |
2608 | reg = FDI_TX_CTL(pipe); | |
2609 | temp = I915_READ(reg); | |
2610 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; | |
2611 | temp |= FDI_LINK_TRAIN_PATTERN_2_IVB; | |
2612 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2613 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
2614 | I915_WRITE(reg, temp); | |
2615 | ||
2616 | reg = FDI_RX_CTL(pipe); | |
2617 | temp = I915_READ(reg); | |
2618 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2619 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
2620 | I915_WRITE(reg, temp); | |
2621 | ||
2622 | POSTING_READ(reg); | |
2623 | udelay(150); | |
2624 | ||
0206e353 | 2625 | for (i = 0; i < 4; i++) { |
357555c0 JB |
2626 | reg = FDI_TX_CTL(pipe); |
2627 | temp = I915_READ(reg); | |
2628 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2629 | temp |= snb_b_fdi_train_param[i]; | |
2630 | I915_WRITE(reg, temp); | |
2631 | ||
2632 | POSTING_READ(reg); | |
2633 | udelay(500); | |
2634 | ||
2635 | reg = FDI_RX_IIR(pipe); | |
2636 | temp = I915_READ(reg); | |
2637 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2638 | ||
2639 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
2640 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
01a415fd | 2641 | DRM_DEBUG_KMS("FDI train 2 done, level %i.\n", i); |
357555c0 JB |
2642 | break; |
2643 | } | |
2644 | } | |
2645 | if (i == 4) | |
2646 | DRM_ERROR("FDI train 2 fail!\n"); | |
2647 | ||
2648 | DRM_DEBUG_KMS("FDI train done.\n"); | |
2649 | } | |
2650 | ||
88cefb6c | 2651 | static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc) |
2c07245f | 2652 | { |
88cefb6c | 2653 | struct drm_device *dev = intel_crtc->base.dev; |
2c07245f | 2654 | struct drm_i915_private *dev_priv = dev->dev_private; |
2c07245f | 2655 | int pipe = intel_crtc->pipe; |
5eddb70b | 2656 | u32 reg, temp; |
79e53945 | 2657 | |
c64e311e | 2658 | |
c98e9dcf | 2659 | /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ |
5eddb70b CW |
2660 | reg = FDI_RX_CTL(pipe); |
2661 | temp = I915_READ(reg); | |
627eb5a3 DV |
2662 | temp &= ~(FDI_DP_PORT_WIDTH_MASK | (0x7 << 16)); |
2663 | temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes); | |
dfd07d72 | 2664 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
5eddb70b CW |
2665 | I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE); |
2666 | ||
2667 | POSTING_READ(reg); | |
c98e9dcf JB |
2668 | udelay(200); |
2669 | ||
2670 | /* Switch from Rawclk to PCDclk */ | |
5eddb70b CW |
2671 | temp = I915_READ(reg); |
2672 | I915_WRITE(reg, temp | FDI_PCDCLK); | |
2673 | ||
2674 | POSTING_READ(reg); | |
c98e9dcf JB |
2675 | udelay(200); |
2676 | ||
20749730 PZ |
2677 | /* Enable CPU FDI TX PLL, always on for Ironlake */ |
2678 | reg = FDI_TX_CTL(pipe); | |
2679 | temp = I915_READ(reg); | |
2680 | if ((temp & FDI_TX_PLL_ENABLE) == 0) { | |
2681 | I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE); | |
5eddb70b | 2682 | |
20749730 PZ |
2683 | POSTING_READ(reg); |
2684 | udelay(100); | |
6be4a607 | 2685 | } |
0e23b99d JB |
2686 | } |
2687 | ||
88cefb6c DV |
2688 | static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc) |
2689 | { | |
2690 | struct drm_device *dev = intel_crtc->base.dev; | |
2691 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2692 | int pipe = intel_crtc->pipe; | |
2693 | u32 reg, temp; | |
2694 | ||
2695 | /* Switch from PCDclk to Rawclk */ | |
2696 | reg = FDI_RX_CTL(pipe); | |
2697 | temp = I915_READ(reg); | |
2698 | I915_WRITE(reg, temp & ~FDI_PCDCLK); | |
2699 | ||
2700 | /* Disable CPU FDI TX PLL */ | |
2701 | reg = FDI_TX_CTL(pipe); | |
2702 | temp = I915_READ(reg); | |
2703 | I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE); | |
2704 | ||
2705 | POSTING_READ(reg); | |
2706 | udelay(100); | |
2707 | ||
2708 | reg = FDI_RX_CTL(pipe); | |
2709 | temp = I915_READ(reg); | |
2710 | I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE); | |
2711 | ||
2712 | /* Wait for the clocks to turn off. */ | |
2713 | POSTING_READ(reg); | |
2714 | udelay(100); | |
2715 | } | |
2716 | ||
0fc932b8 JB |
2717 | static void ironlake_fdi_disable(struct drm_crtc *crtc) |
2718 | { | |
2719 | struct drm_device *dev = crtc->dev; | |
2720 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2721 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2722 | int pipe = intel_crtc->pipe; | |
2723 | u32 reg, temp; | |
2724 | ||
2725 | /* disable CPU FDI tx and PCH FDI rx */ | |
2726 | reg = FDI_TX_CTL(pipe); | |
2727 | temp = I915_READ(reg); | |
2728 | I915_WRITE(reg, temp & ~FDI_TX_ENABLE); | |
2729 | POSTING_READ(reg); | |
2730 | ||
2731 | reg = FDI_RX_CTL(pipe); | |
2732 | temp = I915_READ(reg); | |
2733 | temp &= ~(0x7 << 16); | |
dfd07d72 | 2734 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
0fc932b8 JB |
2735 | I915_WRITE(reg, temp & ~FDI_RX_ENABLE); |
2736 | ||
2737 | POSTING_READ(reg); | |
2738 | udelay(100); | |
2739 | ||
2740 | /* Ironlake workaround, disable clock pointer after downing FDI */ | |
6f06ce18 JB |
2741 | if (HAS_PCH_IBX(dev)) { |
2742 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); | |
6f06ce18 | 2743 | } |
0fc932b8 JB |
2744 | |
2745 | /* still set train pattern 1 */ | |
2746 | reg = FDI_TX_CTL(pipe); | |
2747 | temp = I915_READ(reg); | |
2748 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2749 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2750 | I915_WRITE(reg, temp); | |
2751 | ||
2752 | reg = FDI_RX_CTL(pipe); | |
2753 | temp = I915_READ(reg); | |
2754 | if (HAS_PCH_CPT(dev)) { | |
2755 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2756 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
2757 | } else { | |
2758 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2759 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2760 | } | |
2761 | /* BPC in FDI rx is consistent with that in PIPECONF */ | |
2762 | temp &= ~(0x07 << 16); | |
dfd07d72 | 2763 | temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11; |
0fc932b8 JB |
2764 | I915_WRITE(reg, temp); |
2765 | ||
2766 | POSTING_READ(reg); | |
2767 | udelay(100); | |
2768 | } | |
2769 | ||
5bb61643 CW |
2770 | static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc) |
2771 | { | |
2772 | struct drm_device *dev = crtc->dev; | |
2773 | struct drm_i915_private *dev_priv = dev->dev_private; | |
10d83730 | 2774 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5bb61643 CW |
2775 | unsigned long flags; |
2776 | bool pending; | |
2777 | ||
10d83730 VS |
2778 | if (i915_reset_in_progress(&dev_priv->gpu_error) || |
2779 | intel_crtc->reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter)) | |
5bb61643 CW |
2780 | return false; |
2781 | ||
2782 | spin_lock_irqsave(&dev->event_lock, flags); | |
2783 | pending = to_intel_crtc(crtc)->unpin_work != NULL; | |
2784 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
2785 | ||
2786 | return pending; | |
2787 | } | |
2788 | ||
e6c3a2a6 CW |
2789 | static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc) |
2790 | { | |
0f91128d | 2791 | struct drm_device *dev = crtc->dev; |
5bb61643 | 2792 | struct drm_i915_private *dev_priv = dev->dev_private; |
e6c3a2a6 CW |
2793 | |
2794 | if (crtc->fb == NULL) | |
2795 | return; | |
2796 | ||
2c10d571 DV |
2797 | WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue)); |
2798 | ||
5bb61643 CW |
2799 | wait_event(dev_priv->pending_flip_queue, |
2800 | !intel_crtc_has_pending_flip(crtc)); | |
2801 | ||
0f91128d CW |
2802 | mutex_lock(&dev->struct_mutex); |
2803 | intel_finish_fb(crtc->fb); | |
2804 | mutex_unlock(&dev->struct_mutex); | |
e6c3a2a6 CW |
2805 | } |
2806 | ||
e615efe4 ED |
2807 | /* Program iCLKIP clock to the desired frequency */ |
2808 | static void lpt_program_iclkip(struct drm_crtc *crtc) | |
2809 | { | |
2810 | struct drm_device *dev = crtc->dev; | |
2811 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2812 | u32 divsel, phaseinc, auxdiv, phasedir = 0; | |
2813 | u32 temp; | |
2814 | ||
09153000 DV |
2815 | mutex_lock(&dev_priv->dpio_lock); |
2816 | ||
e615efe4 ED |
2817 | /* It is necessary to ungate the pixclk gate prior to programming |
2818 | * the divisors, and gate it back when it is done. | |
2819 | */ | |
2820 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE); | |
2821 | ||
2822 | /* Disable SSCCTL */ | |
2823 | intel_sbi_write(dev_priv, SBI_SSCCTL6, | |
988d6ee8 PZ |
2824 | intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK) | |
2825 | SBI_SSCCTL_DISABLE, | |
2826 | SBI_ICLK); | |
e615efe4 ED |
2827 | |
2828 | /* 20MHz is a corner case which is out of range for the 7-bit divisor */ | |
2829 | if (crtc->mode.clock == 20000) { | |
2830 | auxdiv = 1; | |
2831 | divsel = 0x41; | |
2832 | phaseinc = 0x20; | |
2833 | } else { | |
2834 | /* The iCLK virtual clock root frequency is in MHz, | |
2835 | * but the crtc->mode.clock in in KHz. To get the divisors, | |
2836 | * it is necessary to divide one by another, so we | |
2837 | * convert the virtual clock precision to KHz here for higher | |
2838 | * precision. | |
2839 | */ | |
2840 | u32 iclk_virtual_root_freq = 172800 * 1000; | |
2841 | u32 iclk_pi_range = 64; | |
2842 | u32 desired_divisor, msb_divisor_value, pi_value; | |
2843 | ||
2844 | desired_divisor = (iclk_virtual_root_freq / crtc->mode.clock); | |
2845 | msb_divisor_value = desired_divisor / iclk_pi_range; | |
2846 | pi_value = desired_divisor % iclk_pi_range; | |
2847 | ||
2848 | auxdiv = 0; | |
2849 | divsel = msb_divisor_value - 2; | |
2850 | phaseinc = pi_value; | |
2851 | } | |
2852 | ||
2853 | /* This should not happen with any sane values */ | |
2854 | WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) & | |
2855 | ~SBI_SSCDIVINTPHASE_DIVSEL_MASK); | |
2856 | WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) & | |
2857 | ~SBI_SSCDIVINTPHASE_INCVAL_MASK); | |
2858 | ||
2859 | DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n", | |
2860 | crtc->mode.clock, | |
2861 | auxdiv, | |
2862 | divsel, | |
2863 | phasedir, | |
2864 | phaseinc); | |
2865 | ||
2866 | /* Program SSCDIVINTPHASE6 */ | |
988d6ee8 | 2867 | temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6, SBI_ICLK); |
e615efe4 ED |
2868 | temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK; |
2869 | temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel); | |
2870 | temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK; | |
2871 | temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc); | |
2872 | temp |= SBI_SSCDIVINTPHASE_DIR(phasedir); | |
2873 | temp |= SBI_SSCDIVINTPHASE_PROPAGATE; | |
988d6ee8 | 2874 | intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE6, temp, SBI_ICLK); |
e615efe4 ED |
2875 | |
2876 | /* Program SSCAUXDIV */ | |
988d6ee8 | 2877 | temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6, SBI_ICLK); |
e615efe4 ED |
2878 | temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1); |
2879 | temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv); | |
988d6ee8 | 2880 | intel_sbi_write(dev_priv, SBI_SSCAUXDIV6, temp, SBI_ICLK); |
e615efe4 ED |
2881 | |
2882 | /* Enable modulator and associated divider */ | |
988d6ee8 | 2883 | temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK); |
e615efe4 | 2884 | temp &= ~SBI_SSCCTL_DISABLE; |
988d6ee8 | 2885 | intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK); |
e615efe4 ED |
2886 | |
2887 | /* Wait for initialization time */ | |
2888 | udelay(24); | |
2889 | ||
2890 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE); | |
09153000 DV |
2891 | |
2892 | mutex_unlock(&dev_priv->dpio_lock); | |
e615efe4 ED |
2893 | } |
2894 | ||
275f01b2 DV |
2895 | static void ironlake_pch_transcoder_set_timings(struct intel_crtc *crtc, |
2896 | enum pipe pch_transcoder) | |
2897 | { | |
2898 | struct drm_device *dev = crtc->base.dev; | |
2899 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2900 | enum transcoder cpu_transcoder = crtc->config.cpu_transcoder; | |
2901 | ||
2902 | I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder), | |
2903 | I915_READ(HTOTAL(cpu_transcoder))); | |
2904 | I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder), | |
2905 | I915_READ(HBLANK(cpu_transcoder))); | |
2906 | I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder), | |
2907 | I915_READ(HSYNC(cpu_transcoder))); | |
2908 | ||
2909 | I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder), | |
2910 | I915_READ(VTOTAL(cpu_transcoder))); | |
2911 | I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder), | |
2912 | I915_READ(VBLANK(cpu_transcoder))); | |
2913 | I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder), | |
2914 | I915_READ(VSYNC(cpu_transcoder))); | |
2915 | I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder), | |
2916 | I915_READ(VSYNCSHIFT(cpu_transcoder))); | |
2917 | } | |
2918 | ||
f67a559d JB |
2919 | /* |
2920 | * Enable PCH resources required for PCH ports: | |
2921 | * - PCH PLLs | |
2922 | * - FDI training & RX/TX | |
2923 | * - update transcoder timings | |
2924 | * - DP transcoding bits | |
2925 | * - transcoder | |
2926 | */ | |
2927 | static void ironlake_pch_enable(struct drm_crtc *crtc) | |
0e23b99d JB |
2928 | { |
2929 | struct drm_device *dev = crtc->dev; | |
2930 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2931 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2932 | int pipe = intel_crtc->pipe; | |
ee7b9f93 | 2933 | u32 reg, temp; |
2c07245f | 2934 | |
ab9412ba | 2935 | assert_pch_transcoder_disabled(dev_priv, pipe); |
e7e164db | 2936 | |
cd986abb DV |
2937 | /* Write the TU size bits before fdi link training, so that error |
2938 | * detection works. */ | |
2939 | I915_WRITE(FDI_RX_TUSIZE1(pipe), | |
2940 | I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK); | |
2941 | ||
c98e9dcf | 2942 | /* For PCH output, training FDI link */ |
674cf967 | 2943 | dev_priv->display.fdi_link_train(crtc); |
2c07245f | 2944 | |
572deb37 DV |
2945 | /* XXX: pch pll's can be enabled any time before we enable the PCH |
2946 | * transcoder, and we actually should do this to not upset any PCH | |
2947 | * transcoder that already use the clock when we share it. | |
2948 | * | |
2949 | * Note that enable_pch_pll tries to do the right thing, but get_pch_pll | |
2950 | * unconditionally resets the pll - we need that to have the right LVDS | |
2951 | * enable sequence. */ | |
b6b4e185 | 2952 | ironlake_enable_pch_pll(intel_crtc); |
6f13b7b5 | 2953 | |
303b81e0 | 2954 | if (HAS_PCH_CPT(dev)) { |
ee7b9f93 | 2955 | u32 sel; |
4b645f14 | 2956 | |
c98e9dcf | 2957 | temp = I915_READ(PCH_DPLL_SEL); |
ee7b9f93 JB |
2958 | switch (pipe) { |
2959 | default: | |
2960 | case 0: | |
2961 | temp |= TRANSA_DPLL_ENABLE; | |
2962 | sel = TRANSA_DPLLB_SEL; | |
2963 | break; | |
2964 | case 1: | |
2965 | temp |= TRANSB_DPLL_ENABLE; | |
2966 | sel = TRANSB_DPLLB_SEL; | |
2967 | break; | |
2968 | case 2: | |
2969 | temp |= TRANSC_DPLL_ENABLE; | |
2970 | sel = TRANSC_DPLLB_SEL; | |
2971 | break; | |
d64311ab | 2972 | } |
ee7b9f93 JB |
2973 | if (intel_crtc->pch_pll->pll_reg == _PCH_DPLL_B) |
2974 | temp |= sel; | |
2975 | else | |
2976 | temp &= ~sel; | |
c98e9dcf | 2977 | I915_WRITE(PCH_DPLL_SEL, temp); |
c98e9dcf | 2978 | } |
5eddb70b | 2979 | |
d9b6cb56 JB |
2980 | /* set transcoder timing, panel must allow it */ |
2981 | assert_panel_unlocked(dev_priv, pipe); | |
275f01b2 | 2982 | ironlake_pch_transcoder_set_timings(intel_crtc, pipe); |
8db9d77b | 2983 | |
303b81e0 | 2984 | intel_fdi_normal_train(crtc); |
5e84e1a4 | 2985 | |
c98e9dcf JB |
2986 | /* For PCH DP, enable TRANS_DP_CTL */ |
2987 | if (HAS_PCH_CPT(dev) && | |
417e822d KP |
2988 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || |
2989 | intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) { | |
dfd07d72 | 2990 | u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) >> 5; |
5eddb70b CW |
2991 | reg = TRANS_DP_CTL(pipe); |
2992 | temp = I915_READ(reg); | |
2993 | temp &= ~(TRANS_DP_PORT_SEL_MASK | | |
220cad3c EA |
2994 | TRANS_DP_SYNC_MASK | |
2995 | TRANS_DP_BPC_MASK); | |
5eddb70b CW |
2996 | temp |= (TRANS_DP_OUTPUT_ENABLE | |
2997 | TRANS_DP_ENH_FRAMING); | |
9325c9f0 | 2998 | temp |= bpc << 9; /* same format but at 11:9 */ |
c98e9dcf JB |
2999 | |
3000 | if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) | |
5eddb70b | 3001 | temp |= TRANS_DP_HSYNC_ACTIVE_HIGH; |
c98e9dcf | 3002 | if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC) |
5eddb70b | 3003 | temp |= TRANS_DP_VSYNC_ACTIVE_HIGH; |
c98e9dcf JB |
3004 | |
3005 | switch (intel_trans_dp_port_sel(crtc)) { | |
3006 | case PCH_DP_B: | |
5eddb70b | 3007 | temp |= TRANS_DP_PORT_SEL_B; |
c98e9dcf JB |
3008 | break; |
3009 | case PCH_DP_C: | |
5eddb70b | 3010 | temp |= TRANS_DP_PORT_SEL_C; |
c98e9dcf JB |
3011 | break; |
3012 | case PCH_DP_D: | |
5eddb70b | 3013 | temp |= TRANS_DP_PORT_SEL_D; |
c98e9dcf JB |
3014 | break; |
3015 | default: | |
e95d41e1 | 3016 | BUG(); |
32f9d658 | 3017 | } |
2c07245f | 3018 | |
5eddb70b | 3019 | I915_WRITE(reg, temp); |
6be4a607 | 3020 | } |
b52eb4dc | 3021 | |
b8a4f404 | 3022 | ironlake_enable_pch_transcoder(dev_priv, pipe); |
f67a559d JB |
3023 | } |
3024 | ||
1507e5bd PZ |
3025 | static void lpt_pch_enable(struct drm_crtc *crtc) |
3026 | { | |
3027 | struct drm_device *dev = crtc->dev; | |
3028 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3029 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3b117c8f | 3030 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
1507e5bd | 3031 | |
ab9412ba | 3032 | assert_pch_transcoder_disabled(dev_priv, TRANSCODER_A); |
1507e5bd | 3033 | |
8c52b5e8 | 3034 | lpt_program_iclkip(crtc); |
1507e5bd | 3035 | |
0540e488 | 3036 | /* Set transcoder timing. */ |
275f01b2 | 3037 | ironlake_pch_transcoder_set_timings(intel_crtc, PIPE_A); |
1507e5bd | 3038 | |
937bb610 | 3039 | lpt_enable_pch_transcoder(dev_priv, cpu_transcoder); |
f67a559d JB |
3040 | } |
3041 | ||
ee7b9f93 JB |
3042 | static void intel_put_pch_pll(struct intel_crtc *intel_crtc) |
3043 | { | |
3044 | struct intel_pch_pll *pll = intel_crtc->pch_pll; | |
3045 | ||
3046 | if (pll == NULL) | |
3047 | return; | |
3048 | ||
3049 | if (pll->refcount == 0) { | |
3050 | WARN(1, "bad PCH PLL refcount\n"); | |
3051 | return; | |
3052 | } | |
3053 | ||
3054 | --pll->refcount; | |
3055 | intel_crtc->pch_pll = NULL; | |
3056 | } | |
3057 | ||
3058 | static struct intel_pch_pll *intel_get_pch_pll(struct intel_crtc *intel_crtc, u32 dpll, u32 fp) | |
3059 | { | |
3060 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; | |
3061 | struct intel_pch_pll *pll; | |
3062 | int i; | |
3063 | ||
3064 | pll = intel_crtc->pch_pll; | |
3065 | if (pll) { | |
3066 | DRM_DEBUG_KMS("CRTC:%d reusing existing PCH PLL %x\n", | |
3067 | intel_crtc->base.base.id, pll->pll_reg); | |
3068 | goto prepare; | |
3069 | } | |
3070 | ||
98b6bd99 DV |
3071 | if (HAS_PCH_IBX(dev_priv->dev)) { |
3072 | /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */ | |
3073 | i = intel_crtc->pipe; | |
3074 | pll = &dev_priv->pch_plls[i]; | |
3075 | ||
3076 | DRM_DEBUG_KMS("CRTC:%d using pre-allocated PCH PLL %x\n", | |
3077 | intel_crtc->base.base.id, pll->pll_reg); | |
3078 | ||
3079 | goto found; | |
3080 | } | |
3081 | ||
ee7b9f93 JB |
3082 | for (i = 0; i < dev_priv->num_pch_pll; i++) { |
3083 | pll = &dev_priv->pch_plls[i]; | |
3084 | ||
3085 | /* Only want to check enabled timings first */ | |
3086 | if (pll->refcount == 0) | |
3087 | continue; | |
3088 | ||
3089 | if (dpll == (I915_READ(pll->pll_reg) & 0x7fffffff) && | |
3090 | fp == I915_READ(pll->fp0_reg)) { | |
3091 | DRM_DEBUG_KMS("CRTC:%d sharing existing PCH PLL %x (refcount %d, ative %d)\n", | |
3092 | intel_crtc->base.base.id, | |
3093 | pll->pll_reg, pll->refcount, pll->active); | |
3094 | ||
3095 | goto found; | |
3096 | } | |
3097 | } | |
3098 | ||
3099 | /* Ok no matching timings, maybe there's a free one? */ | |
3100 | for (i = 0; i < dev_priv->num_pch_pll; i++) { | |
3101 | pll = &dev_priv->pch_plls[i]; | |
3102 | if (pll->refcount == 0) { | |
3103 | DRM_DEBUG_KMS("CRTC:%d allocated PCH PLL %x\n", | |
3104 | intel_crtc->base.base.id, pll->pll_reg); | |
3105 | goto found; | |
3106 | } | |
3107 | } | |
3108 | ||
3109 | return NULL; | |
3110 | ||
3111 | found: | |
3112 | intel_crtc->pch_pll = pll; | |
3113 | pll->refcount++; | |
84f44ce7 | 3114 | DRM_DEBUG_DRIVER("using pll %d for pipe %c\n", i, pipe_name(intel_crtc->pipe)); |
ee7b9f93 JB |
3115 | prepare: /* separate function? */ |
3116 | DRM_DEBUG_DRIVER("switching PLL %x off\n", pll->pll_reg); | |
ee7b9f93 | 3117 | |
e04c7350 CW |
3118 | /* Wait for the clocks to stabilize before rewriting the regs */ |
3119 | I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE); | |
ee7b9f93 JB |
3120 | POSTING_READ(pll->pll_reg); |
3121 | udelay(150); | |
e04c7350 CW |
3122 | |
3123 | I915_WRITE(pll->fp0_reg, fp); | |
3124 | I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE); | |
ee7b9f93 JB |
3125 | pll->on = false; |
3126 | return pll; | |
3127 | } | |
3128 | ||
a1520318 | 3129 | static void cpt_verify_modeset(struct drm_device *dev, int pipe) |
d4270e57 JB |
3130 | { |
3131 | struct drm_i915_private *dev_priv = dev->dev_private; | |
23670b32 | 3132 | int dslreg = PIPEDSL(pipe); |
d4270e57 JB |
3133 | u32 temp; |
3134 | ||
3135 | temp = I915_READ(dslreg); | |
3136 | udelay(500); | |
3137 | if (wait_for(I915_READ(dslreg) != temp, 5)) { | |
d4270e57 | 3138 | if (wait_for(I915_READ(dslreg) != temp, 5)) |
84f44ce7 | 3139 | DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe)); |
d4270e57 JB |
3140 | } |
3141 | } | |
3142 | ||
b074cec8 JB |
3143 | static void ironlake_pfit_enable(struct intel_crtc *crtc) |
3144 | { | |
3145 | struct drm_device *dev = crtc->base.dev; | |
3146 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3147 | int pipe = crtc->pipe; | |
3148 | ||
0ef37f3f | 3149 | if (crtc->config.pch_pfit.size) { |
b074cec8 JB |
3150 | /* Force use of hard-coded filter coefficients |
3151 | * as some pre-programmed values are broken, | |
3152 | * e.g. x201. | |
3153 | */ | |
3154 | if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) | |
3155 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 | | |
3156 | PF_PIPE_SEL_IVB(pipe)); | |
3157 | else | |
3158 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3); | |
3159 | I915_WRITE(PF_WIN_POS(pipe), crtc->config.pch_pfit.pos); | |
3160 | I915_WRITE(PF_WIN_SZ(pipe), crtc->config.pch_pfit.size); | |
3161 | } | |
3162 | } | |
3163 | ||
f67a559d JB |
3164 | static void ironlake_crtc_enable(struct drm_crtc *crtc) |
3165 | { | |
3166 | struct drm_device *dev = crtc->dev; | |
3167 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3168 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3169 | struct intel_encoder *encoder; |
f67a559d JB |
3170 | int pipe = intel_crtc->pipe; |
3171 | int plane = intel_crtc->plane; | |
3172 | u32 temp; | |
f67a559d | 3173 | |
08a48469 DV |
3174 | WARN_ON(!crtc->enabled); |
3175 | ||
f67a559d JB |
3176 | if (intel_crtc->active) |
3177 | return; | |
3178 | ||
3179 | intel_crtc->active = true; | |
8664281b PZ |
3180 | |
3181 | intel_set_cpu_fifo_underrun_reporting(dev, pipe, true); | |
3182 | intel_set_pch_fifo_underrun_reporting(dev, pipe, true); | |
3183 | ||
f67a559d JB |
3184 | intel_update_watermarks(dev); |
3185 | ||
3186 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
3187 | temp = I915_READ(PCH_LVDS); | |
3188 | if ((temp & LVDS_PORT_EN) == 0) | |
3189 | I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN); | |
3190 | } | |
3191 | ||
f67a559d | 3192 | |
5bfe2ac0 | 3193 | if (intel_crtc->config.has_pch_encoder) { |
fff367c7 DV |
3194 | /* Note: FDI PLL enabling _must_ be done before we enable the |
3195 | * cpu pipes, hence this is separate from all the other fdi/pch | |
3196 | * enabling. */ | |
88cefb6c | 3197 | ironlake_fdi_pll_enable(intel_crtc); |
46b6f814 DV |
3198 | } else { |
3199 | assert_fdi_tx_disabled(dev_priv, pipe); | |
3200 | assert_fdi_rx_disabled(dev_priv, pipe); | |
3201 | } | |
f67a559d | 3202 | |
bf49ec8c DV |
3203 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3204 | if (encoder->pre_enable) | |
3205 | encoder->pre_enable(encoder); | |
f67a559d JB |
3206 | |
3207 | /* Enable panel fitting for LVDS */ | |
b074cec8 | 3208 | ironlake_pfit_enable(intel_crtc); |
f67a559d | 3209 | |
9c54c0dd JB |
3210 | /* |
3211 | * On ILK+ LUT must be loaded before the pipe is running but with | |
3212 | * clocks enabled | |
3213 | */ | |
3214 | intel_crtc_load_lut(crtc); | |
3215 | ||
5bfe2ac0 DV |
3216 | intel_enable_pipe(dev_priv, pipe, |
3217 | intel_crtc->config.has_pch_encoder); | |
f67a559d JB |
3218 | intel_enable_plane(dev_priv, plane, pipe); |
3219 | ||
5bfe2ac0 | 3220 | if (intel_crtc->config.has_pch_encoder) |
f67a559d | 3221 | ironlake_pch_enable(crtc); |
c98e9dcf | 3222 | |
d1ebd816 | 3223 | mutex_lock(&dev->struct_mutex); |
bed4a673 | 3224 | intel_update_fbc(dev); |
d1ebd816 BW |
3225 | mutex_unlock(&dev->struct_mutex); |
3226 | ||
6b383a7f | 3227 | intel_crtc_update_cursor(crtc, true); |
ef9c3aee | 3228 | |
fa5c73b1 DV |
3229 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3230 | encoder->enable(encoder); | |
61b77ddd DV |
3231 | |
3232 | if (HAS_PCH_CPT(dev)) | |
a1520318 | 3233 | cpt_verify_modeset(dev, intel_crtc->pipe); |
6ce94100 DV |
3234 | |
3235 | /* | |
3236 | * There seems to be a race in PCH platform hw (at least on some | |
3237 | * outputs) where an enabled pipe still completes any pageflip right | |
3238 | * away (as if the pipe is off) instead of waiting for vblank. As soon | |
3239 | * as the first vblank happend, everything works as expected. Hence just | |
3240 | * wait for one vblank before returning to avoid strange things | |
3241 | * happening. | |
3242 | */ | |
3243 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
6be4a607 JB |
3244 | } |
3245 | ||
42db64ef PZ |
3246 | /* IPS only exists on ULT machines and is tied to pipe A. */ |
3247 | static bool hsw_crtc_supports_ips(struct intel_crtc *crtc) | |
3248 | { | |
3249 | return IS_ULT(crtc->base.dev) && crtc->pipe == PIPE_A; | |
3250 | } | |
3251 | ||
3252 | static void hsw_enable_ips(struct intel_crtc *crtc) | |
3253 | { | |
3254 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; | |
3255 | ||
3256 | if (!crtc->config.ips_enabled) | |
3257 | return; | |
3258 | ||
3259 | /* We can only enable IPS after we enable a plane and wait for a vblank. | |
3260 | * We guarantee that the plane is enabled by calling intel_enable_ips | |
3261 | * only after intel_enable_plane. And intel_enable_plane already waits | |
3262 | * for a vblank, so all we need to do here is to enable the IPS bit. */ | |
3263 | assert_plane_enabled(dev_priv, crtc->plane); | |
3264 | I915_WRITE(IPS_CTL, IPS_ENABLE); | |
3265 | } | |
3266 | ||
3267 | static void hsw_disable_ips(struct intel_crtc *crtc) | |
3268 | { | |
3269 | struct drm_device *dev = crtc->base.dev; | |
3270 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3271 | ||
3272 | if (!crtc->config.ips_enabled) | |
3273 | return; | |
3274 | ||
3275 | assert_plane_enabled(dev_priv, crtc->plane); | |
3276 | I915_WRITE(IPS_CTL, 0); | |
3277 | ||
3278 | /* We need to wait for a vblank before we can disable the plane. */ | |
3279 | intel_wait_for_vblank(dev, crtc->pipe); | |
3280 | } | |
3281 | ||
4f771f10 PZ |
3282 | static void haswell_crtc_enable(struct drm_crtc *crtc) |
3283 | { | |
3284 | struct drm_device *dev = crtc->dev; | |
3285 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3286 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3287 | struct intel_encoder *encoder; | |
3288 | int pipe = intel_crtc->pipe; | |
3289 | int plane = intel_crtc->plane; | |
4f771f10 PZ |
3290 | |
3291 | WARN_ON(!crtc->enabled); | |
3292 | ||
3293 | if (intel_crtc->active) | |
3294 | return; | |
3295 | ||
3296 | intel_crtc->active = true; | |
8664281b PZ |
3297 | |
3298 | intel_set_cpu_fifo_underrun_reporting(dev, pipe, true); | |
3299 | if (intel_crtc->config.has_pch_encoder) | |
3300 | intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true); | |
3301 | ||
4f771f10 PZ |
3302 | intel_update_watermarks(dev); |
3303 | ||
5bfe2ac0 | 3304 | if (intel_crtc->config.has_pch_encoder) |
04945641 | 3305 | dev_priv->display.fdi_link_train(crtc); |
4f771f10 PZ |
3306 | |
3307 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3308 | if (encoder->pre_enable) | |
3309 | encoder->pre_enable(encoder); | |
3310 | ||
1f544388 | 3311 | intel_ddi_enable_pipe_clock(intel_crtc); |
4f771f10 | 3312 | |
1f544388 | 3313 | /* Enable panel fitting for eDP */ |
b074cec8 | 3314 | ironlake_pfit_enable(intel_crtc); |
4f771f10 PZ |
3315 | |
3316 | /* | |
3317 | * On ILK+ LUT must be loaded before the pipe is running but with | |
3318 | * clocks enabled | |
3319 | */ | |
3320 | intel_crtc_load_lut(crtc); | |
3321 | ||
1f544388 | 3322 | intel_ddi_set_pipe_settings(crtc); |
8228c251 | 3323 | intel_ddi_enable_transcoder_func(crtc); |
4f771f10 | 3324 | |
5bfe2ac0 DV |
3325 | intel_enable_pipe(dev_priv, pipe, |
3326 | intel_crtc->config.has_pch_encoder); | |
4f771f10 PZ |
3327 | intel_enable_plane(dev_priv, plane, pipe); |
3328 | ||
42db64ef PZ |
3329 | hsw_enable_ips(intel_crtc); |
3330 | ||
5bfe2ac0 | 3331 | if (intel_crtc->config.has_pch_encoder) |
1507e5bd | 3332 | lpt_pch_enable(crtc); |
4f771f10 PZ |
3333 | |
3334 | mutex_lock(&dev->struct_mutex); | |
3335 | intel_update_fbc(dev); | |
3336 | mutex_unlock(&dev->struct_mutex); | |
3337 | ||
3338 | intel_crtc_update_cursor(crtc, true); | |
3339 | ||
3340 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3341 | encoder->enable(encoder); | |
3342 | ||
4f771f10 PZ |
3343 | /* |
3344 | * There seems to be a race in PCH platform hw (at least on some | |
3345 | * outputs) where an enabled pipe still completes any pageflip right | |
3346 | * away (as if the pipe is off) instead of waiting for vblank. As soon | |
3347 | * as the first vblank happend, everything works as expected. Hence just | |
3348 | * wait for one vblank before returning to avoid strange things | |
3349 | * happening. | |
3350 | */ | |
3351 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
3352 | } | |
3353 | ||
3f8dce3a DV |
3354 | static void ironlake_pfit_disable(struct intel_crtc *crtc) |
3355 | { | |
3356 | struct drm_device *dev = crtc->base.dev; | |
3357 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3358 | int pipe = crtc->pipe; | |
3359 | ||
3360 | /* To avoid upsetting the power well on haswell only disable the pfit if | |
3361 | * it's in use. The hw state code will make sure we get this right. */ | |
3362 | if (crtc->config.pch_pfit.size) { | |
3363 | I915_WRITE(PF_CTL(pipe), 0); | |
3364 | I915_WRITE(PF_WIN_POS(pipe), 0); | |
3365 | I915_WRITE(PF_WIN_SZ(pipe), 0); | |
3366 | } | |
3367 | } | |
3368 | ||
6be4a607 JB |
3369 | static void ironlake_crtc_disable(struct drm_crtc *crtc) |
3370 | { | |
3371 | struct drm_device *dev = crtc->dev; | |
3372 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3373 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3374 | struct intel_encoder *encoder; |
6be4a607 JB |
3375 | int pipe = intel_crtc->pipe; |
3376 | int plane = intel_crtc->plane; | |
5eddb70b | 3377 | u32 reg, temp; |
b52eb4dc | 3378 | |
ef9c3aee | 3379 | |
f7abfe8b CW |
3380 | if (!intel_crtc->active) |
3381 | return; | |
3382 | ||
ea9d758d DV |
3383 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3384 | encoder->disable(encoder); | |
3385 | ||
e6c3a2a6 | 3386 | intel_crtc_wait_for_pending_flips(crtc); |
6be4a607 | 3387 | drm_vblank_off(dev, pipe); |
6b383a7f | 3388 | intel_crtc_update_cursor(crtc, false); |
5eddb70b | 3389 | |
b24e7179 | 3390 | intel_disable_plane(dev_priv, plane, pipe); |
913d8d11 | 3391 | |
973d04f9 CW |
3392 | if (dev_priv->cfb_plane == plane) |
3393 | intel_disable_fbc(dev); | |
2c07245f | 3394 | |
8664281b | 3395 | intel_set_pch_fifo_underrun_reporting(dev, pipe, false); |
b24e7179 | 3396 | intel_disable_pipe(dev_priv, pipe); |
32f9d658 | 3397 | |
3f8dce3a | 3398 | ironlake_pfit_disable(intel_crtc); |
2c07245f | 3399 | |
bf49ec8c DV |
3400 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3401 | if (encoder->post_disable) | |
3402 | encoder->post_disable(encoder); | |
2c07245f | 3403 | |
0fc932b8 | 3404 | ironlake_fdi_disable(crtc); |
249c0e64 | 3405 | |
b8a4f404 | 3406 | ironlake_disable_pch_transcoder(dev_priv, pipe); |
8664281b | 3407 | intel_set_pch_fifo_underrun_reporting(dev, pipe, true); |
913d8d11 | 3408 | |
6be4a607 JB |
3409 | if (HAS_PCH_CPT(dev)) { |
3410 | /* disable TRANS_DP_CTL */ | |
5eddb70b CW |
3411 | reg = TRANS_DP_CTL(pipe); |
3412 | temp = I915_READ(reg); | |
3413 | temp &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK); | |
cb3543c6 | 3414 | temp |= TRANS_DP_PORT_SEL_NONE; |
5eddb70b | 3415 | I915_WRITE(reg, temp); |
6be4a607 JB |
3416 | |
3417 | /* disable DPLL_SEL */ | |
3418 | temp = I915_READ(PCH_DPLL_SEL); | |
9db4a9c7 JB |
3419 | switch (pipe) { |
3420 | case 0: | |
d64311ab | 3421 | temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL); |
9db4a9c7 JB |
3422 | break; |
3423 | case 1: | |
6be4a607 | 3424 | temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); |
9db4a9c7 JB |
3425 | break; |
3426 | case 2: | |
4b645f14 | 3427 | /* C shares PLL A or B */ |
d64311ab | 3428 | temp &= ~(TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL); |
9db4a9c7 JB |
3429 | break; |
3430 | default: | |
3431 | BUG(); /* wtf */ | |
3432 | } | |
6be4a607 | 3433 | I915_WRITE(PCH_DPLL_SEL, temp); |
6be4a607 | 3434 | } |
e3421a18 | 3435 | |
6be4a607 | 3436 | /* disable PCH DPLL */ |
ee7b9f93 | 3437 | intel_disable_pch_pll(intel_crtc); |
8db9d77b | 3438 | |
88cefb6c | 3439 | ironlake_fdi_pll_disable(intel_crtc); |
6b383a7f | 3440 | |
f7abfe8b | 3441 | intel_crtc->active = false; |
6b383a7f | 3442 | intel_update_watermarks(dev); |
d1ebd816 BW |
3443 | |
3444 | mutex_lock(&dev->struct_mutex); | |
6b383a7f | 3445 | intel_update_fbc(dev); |
d1ebd816 | 3446 | mutex_unlock(&dev->struct_mutex); |
6be4a607 | 3447 | } |
1b3c7a47 | 3448 | |
4f771f10 | 3449 | static void haswell_crtc_disable(struct drm_crtc *crtc) |
ee7b9f93 | 3450 | { |
4f771f10 PZ |
3451 | struct drm_device *dev = crtc->dev; |
3452 | struct drm_i915_private *dev_priv = dev->dev_private; | |
ee7b9f93 | 3453 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
4f771f10 PZ |
3454 | struct intel_encoder *encoder; |
3455 | int pipe = intel_crtc->pipe; | |
3456 | int plane = intel_crtc->plane; | |
3b117c8f | 3457 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
ee7b9f93 | 3458 | |
4f771f10 PZ |
3459 | if (!intel_crtc->active) |
3460 | return; | |
3461 | ||
3462 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3463 | encoder->disable(encoder); | |
3464 | ||
3465 | intel_crtc_wait_for_pending_flips(crtc); | |
3466 | drm_vblank_off(dev, pipe); | |
3467 | intel_crtc_update_cursor(crtc, false); | |
3468 | ||
891348b2 | 3469 | /* FBC must be disabled before disabling the plane on HSW. */ |
4f771f10 PZ |
3470 | if (dev_priv->cfb_plane == plane) |
3471 | intel_disable_fbc(dev); | |
3472 | ||
42db64ef PZ |
3473 | hsw_disable_ips(intel_crtc); |
3474 | ||
891348b2 RV |
3475 | intel_disable_plane(dev_priv, plane, pipe); |
3476 | ||
8664281b PZ |
3477 | if (intel_crtc->config.has_pch_encoder) |
3478 | intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, false); | |
4f771f10 PZ |
3479 | intel_disable_pipe(dev_priv, pipe); |
3480 | ||
ad80a810 | 3481 | intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder); |
4f771f10 | 3482 | |
3f8dce3a | 3483 | ironlake_pfit_disable(intel_crtc); |
4f771f10 | 3484 | |
1f544388 | 3485 | intel_ddi_disable_pipe_clock(intel_crtc); |
4f771f10 PZ |
3486 | |
3487 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3488 | if (encoder->post_disable) | |
3489 | encoder->post_disable(encoder); | |
3490 | ||
88adfff1 | 3491 | if (intel_crtc->config.has_pch_encoder) { |
ab4d966c | 3492 | lpt_disable_pch_transcoder(dev_priv); |
8664281b | 3493 | intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true); |
1ad960f2 | 3494 | intel_ddi_fdi_disable(crtc); |
83616634 | 3495 | } |
4f771f10 PZ |
3496 | |
3497 | intel_crtc->active = false; | |
3498 | intel_update_watermarks(dev); | |
3499 | ||
3500 | mutex_lock(&dev->struct_mutex); | |
3501 | intel_update_fbc(dev); | |
3502 | mutex_unlock(&dev->struct_mutex); | |
3503 | } | |
3504 | ||
ee7b9f93 JB |
3505 | static void ironlake_crtc_off(struct drm_crtc *crtc) |
3506 | { | |
3507 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3508 | intel_put_pch_pll(intel_crtc); | |
3509 | } | |
3510 | ||
6441ab5f PZ |
3511 | static void haswell_crtc_off(struct drm_crtc *crtc) |
3512 | { | |
3513 | intel_ddi_put_crtc_pll(crtc); | |
3514 | } | |
3515 | ||
02e792fb DV |
3516 | static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable) |
3517 | { | |
02e792fb | 3518 | if (!enable && intel_crtc->overlay) { |
23f09ce3 | 3519 | struct drm_device *dev = intel_crtc->base.dev; |
ce453d81 | 3520 | struct drm_i915_private *dev_priv = dev->dev_private; |
03f77ea5 | 3521 | |
23f09ce3 | 3522 | mutex_lock(&dev->struct_mutex); |
ce453d81 CW |
3523 | dev_priv->mm.interruptible = false; |
3524 | (void) intel_overlay_switch_off(intel_crtc->overlay); | |
3525 | dev_priv->mm.interruptible = true; | |
23f09ce3 | 3526 | mutex_unlock(&dev->struct_mutex); |
02e792fb | 3527 | } |
02e792fb | 3528 | |
5dcdbcb0 CW |
3529 | /* Let userspace switch the overlay on again. In most cases userspace |
3530 | * has to recompute where to put it anyway. | |
3531 | */ | |
02e792fb DV |
3532 | } |
3533 | ||
61bc95c1 EE |
3534 | /** |
3535 | * i9xx_fixup_plane - ugly workaround for G45 to fire up the hardware | |
3536 | * cursor plane briefly if not already running after enabling the display | |
3537 | * plane. | |
3538 | * This workaround avoids occasional blank screens when self refresh is | |
3539 | * enabled. | |
3540 | */ | |
3541 | static void | |
3542 | g4x_fixup_plane(struct drm_i915_private *dev_priv, enum pipe pipe) | |
3543 | { | |
3544 | u32 cntl = I915_READ(CURCNTR(pipe)); | |
3545 | ||
3546 | if ((cntl & CURSOR_MODE) == 0) { | |
3547 | u32 fw_bcl_self = I915_READ(FW_BLC_SELF); | |
3548 | ||
3549 | I915_WRITE(FW_BLC_SELF, fw_bcl_self & ~FW_BLC_SELF_EN); | |
3550 | I915_WRITE(CURCNTR(pipe), CURSOR_MODE_64_ARGB_AX); | |
3551 | intel_wait_for_vblank(dev_priv->dev, pipe); | |
3552 | I915_WRITE(CURCNTR(pipe), cntl); | |
3553 | I915_WRITE(CURBASE(pipe), I915_READ(CURBASE(pipe))); | |
3554 | I915_WRITE(FW_BLC_SELF, fw_bcl_self); | |
3555 | } | |
3556 | } | |
3557 | ||
2dd24552 JB |
3558 | static void i9xx_pfit_enable(struct intel_crtc *crtc) |
3559 | { | |
3560 | struct drm_device *dev = crtc->base.dev; | |
3561 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3562 | struct intel_crtc_config *pipe_config = &crtc->config; | |
3563 | ||
328d8e82 | 3564 | if (!crtc->config.gmch_pfit.control) |
2dd24552 JB |
3565 | return; |
3566 | ||
2dd24552 | 3567 | /* |
c0b03411 DV |
3568 | * The panel fitter should only be adjusted whilst the pipe is disabled, |
3569 | * according to register description and PRM. | |
2dd24552 | 3570 | */ |
c0b03411 DV |
3571 | WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE); |
3572 | assert_pipe_disabled(dev_priv, crtc->pipe); | |
2dd24552 | 3573 | |
b074cec8 JB |
3574 | I915_WRITE(PFIT_PGM_RATIOS, pipe_config->gmch_pfit.pgm_ratios); |
3575 | I915_WRITE(PFIT_CONTROL, pipe_config->gmch_pfit.control); | |
5a80c45c DV |
3576 | |
3577 | /* Border color in case we don't scale up to the full screen. Black by | |
3578 | * default, change to something else for debugging. */ | |
3579 | I915_WRITE(BCLRPAT(crtc->pipe), 0); | |
2dd24552 JB |
3580 | } |
3581 | ||
89b667f8 JB |
3582 | static void valleyview_crtc_enable(struct drm_crtc *crtc) |
3583 | { | |
3584 | struct drm_device *dev = crtc->dev; | |
3585 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3586 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3587 | struct intel_encoder *encoder; | |
3588 | int pipe = intel_crtc->pipe; | |
3589 | int plane = intel_crtc->plane; | |
3590 | ||
3591 | WARN_ON(!crtc->enabled); | |
3592 | ||
3593 | if (intel_crtc->active) | |
3594 | return; | |
3595 | ||
3596 | intel_crtc->active = true; | |
3597 | intel_update_watermarks(dev); | |
3598 | ||
3599 | mutex_lock(&dev_priv->dpio_lock); | |
3600 | ||
3601 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3602 | if (encoder->pre_pll_enable) | |
3603 | encoder->pre_pll_enable(encoder); | |
3604 | ||
3605 | intel_enable_pll(dev_priv, pipe); | |
3606 | ||
3607 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3608 | if (encoder->pre_enable) | |
3609 | encoder->pre_enable(encoder); | |
3610 | ||
3611 | /* VLV wants encoder enabling _before_ the pipe is up. */ | |
3612 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3613 | encoder->enable(encoder); | |
3614 | ||
2dd24552 JB |
3615 | /* Enable panel fitting for eDP */ |
3616 | i9xx_pfit_enable(intel_crtc); | |
3617 | ||
89b667f8 JB |
3618 | intel_enable_pipe(dev_priv, pipe, false); |
3619 | intel_enable_plane(dev_priv, plane, pipe); | |
3620 | ||
3621 | intel_crtc_load_lut(crtc); | |
3622 | intel_update_fbc(dev); | |
3623 | ||
3624 | /* Give the overlay scaler a chance to enable if it's on this pipe */ | |
3625 | intel_crtc_dpms_overlay(intel_crtc, true); | |
3626 | intel_crtc_update_cursor(crtc, true); | |
3627 | ||
3628 | mutex_unlock(&dev_priv->dpio_lock); | |
3629 | } | |
3630 | ||
0b8765c6 | 3631 | static void i9xx_crtc_enable(struct drm_crtc *crtc) |
79e53945 JB |
3632 | { |
3633 | struct drm_device *dev = crtc->dev; | |
79e53945 JB |
3634 | struct drm_i915_private *dev_priv = dev->dev_private; |
3635 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3636 | struct intel_encoder *encoder; |
79e53945 | 3637 | int pipe = intel_crtc->pipe; |
80824003 | 3638 | int plane = intel_crtc->plane; |
79e53945 | 3639 | |
08a48469 DV |
3640 | WARN_ON(!crtc->enabled); |
3641 | ||
f7abfe8b CW |
3642 | if (intel_crtc->active) |
3643 | return; | |
3644 | ||
3645 | intel_crtc->active = true; | |
6b383a7f CW |
3646 | intel_update_watermarks(dev); |
3647 | ||
63d7bbe9 | 3648 | intel_enable_pll(dev_priv, pipe); |
9d6d9f19 MK |
3649 | |
3650 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3651 | if (encoder->pre_enable) | |
3652 | encoder->pre_enable(encoder); | |
3653 | ||
2dd24552 JB |
3654 | /* Enable panel fitting for LVDS */ |
3655 | i9xx_pfit_enable(intel_crtc); | |
3656 | ||
040484af | 3657 | intel_enable_pipe(dev_priv, pipe, false); |
b24e7179 | 3658 | intel_enable_plane(dev_priv, plane, pipe); |
61bc95c1 EE |
3659 | if (IS_G4X(dev)) |
3660 | g4x_fixup_plane(dev_priv, pipe); | |
79e53945 | 3661 | |
0b8765c6 | 3662 | intel_crtc_load_lut(crtc); |
bed4a673 | 3663 | intel_update_fbc(dev); |
79e53945 | 3664 | |
0b8765c6 JB |
3665 | /* Give the overlay scaler a chance to enable if it's on this pipe */ |
3666 | intel_crtc_dpms_overlay(intel_crtc, true); | |
6b383a7f | 3667 | intel_crtc_update_cursor(crtc, true); |
ef9c3aee | 3668 | |
fa5c73b1 DV |
3669 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3670 | encoder->enable(encoder); | |
0b8765c6 | 3671 | } |
79e53945 | 3672 | |
87476d63 DV |
3673 | static void i9xx_pfit_disable(struct intel_crtc *crtc) |
3674 | { | |
3675 | struct drm_device *dev = crtc->base.dev; | |
3676 | struct drm_i915_private *dev_priv = dev->dev_private; | |
87476d63 | 3677 | |
328d8e82 DV |
3678 | if (!crtc->config.gmch_pfit.control) |
3679 | return; | |
87476d63 | 3680 | |
328d8e82 | 3681 | assert_pipe_disabled(dev_priv, crtc->pipe); |
87476d63 | 3682 | |
328d8e82 DV |
3683 | DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n", |
3684 | I915_READ(PFIT_CONTROL)); | |
3685 | I915_WRITE(PFIT_CONTROL, 0); | |
87476d63 DV |
3686 | } |
3687 | ||
0b8765c6 JB |
3688 | static void i9xx_crtc_disable(struct drm_crtc *crtc) |
3689 | { | |
3690 | struct drm_device *dev = crtc->dev; | |
3691 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3692 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3693 | struct intel_encoder *encoder; |
0b8765c6 JB |
3694 | int pipe = intel_crtc->pipe; |
3695 | int plane = intel_crtc->plane; | |
ef9c3aee | 3696 | |
f7abfe8b CW |
3697 | if (!intel_crtc->active) |
3698 | return; | |
3699 | ||
ea9d758d DV |
3700 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3701 | encoder->disable(encoder); | |
3702 | ||
0b8765c6 | 3703 | /* Give the overlay scaler a chance to disable if it's on this pipe */ |
e6c3a2a6 CW |
3704 | intel_crtc_wait_for_pending_flips(crtc); |
3705 | drm_vblank_off(dev, pipe); | |
0b8765c6 | 3706 | intel_crtc_dpms_overlay(intel_crtc, false); |
6b383a7f | 3707 | intel_crtc_update_cursor(crtc, false); |
0b8765c6 | 3708 | |
973d04f9 CW |
3709 | if (dev_priv->cfb_plane == plane) |
3710 | intel_disable_fbc(dev); | |
79e53945 | 3711 | |
b24e7179 | 3712 | intel_disable_plane(dev_priv, plane, pipe); |
b24e7179 | 3713 | intel_disable_pipe(dev_priv, pipe); |
24a1f16d | 3714 | |
87476d63 | 3715 | i9xx_pfit_disable(intel_crtc); |
24a1f16d | 3716 | |
89b667f8 JB |
3717 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3718 | if (encoder->post_disable) | |
3719 | encoder->post_disable(encoder); | |
3720 | ||
63d7bbe9 | 3721 | intel_disable_pll(dev_priv, pipe); |
0b8765c6 | 3722 | |
f7abfe8b | 3723 | intel_crtc->active = false; |
6b383a7f CW |
3724 | intel_update_fbc(dev); |
3725 | intel_update_watermarks(dev); | |
0b8765c6 JB |
3726 | } |
3727 | ||
ee7b9f93 JB |
3728 | static void i9xx_crtc_off(struct drm_crtc *crtc) |
3729 | { | |
3730 | } | |
3731 | ||
976f8a20 DV |
3732 | static void intel_crtc_update_sarea(struct drm_crtc *crtc, |
3733 | bool enabled) | |
2c07245f ZW |
3734 | { |
3735 | struct drm_device *dev = crtc->dev; | |
3736 | struct drm_i915_master_private *master_priv; | |
3737 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3738 | int pipe = intel_crtc->pipe; | |
79e53945 JB |
3739 | |
3740 | if (!dev->primary->master) | |
3741 | return; | |
3742 | ||
3743 | master_priv = dev->primary->master->driver_priv; | |
3744 | if (!master_priv->sarea_priv) | |
3745 | return; | |
3746 | ||
79e53945 JB |
3747 | switch (pipe) { |
3748 | case 0: | |
3749 | master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0; | |
3750 | master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0; | |
3751 | break; | |
3752 | case 1: | |
3753 | master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0; | |
3754 | master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0; | |
3755 | break; | |
3756 | default: | |
9db4a9c7 | 3757 | DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe)); |
79e53945 JB |
3758 | break; |
3759 | } | |
79e53945 JB |
3760 | } |
3761 | ||
976f8a20 DV |
3762 | /** |
3763 | * Sets the power management mode of the pipe and plane. | |
3764 | */ | |
3765 | void intel_crtc_update_dpms(struct drm_crtc *crtc) | |
3766 | { | |
3767 | struct drm_device *dev = crtc->dev; | |
3768 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3769 | struct intel_encoder *intel_encoder; | |
3770 | bool enable = false; | |
3771 | ||
3772 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) | |
3773 | enable |= intel_encoder->connectors_active; | |
3774 | ||
3775 | if (enable) | |
3776 | dev_priv->display.crtc_enable(crtc); | |
3777 | else | |
3778 | dev_priv->display.crtc_disable(crtc); | |
3779 | ||
3780 | intel_crtc_update_sarea(crtc, enable); | |
3781 | } | |
3782 | ||
cdd59983 CW |
3783 | static void intel_crtc_disable(struct drm_crtc *crtc) |
3784 | { | |
cdd59983 | 3785 | struct drm_device *dev = crtc->dev; |
976f8a20 | 3786 | struct drm_connector *connector; |
ee7b9f93 | 3787 | struct drm_i915_private *dev_priv = dev->dev_private; |
7b9f35a6 | 3788 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
cdd59983 | 3789 | |
976f8a20 DV |
3790 | /* crtc should still be enabled when we disable it. */ |
3791 | WARN_ON(!crtc->enabled); | |
3792 | ||
3793 | dev_priv->display.crtc_disable(crtc); | |
c77bf565 | 3794 | intel_crtc->eld_vld = false; |
976f8a20 | 3795 | intel_crtc_update_sarea(crtc, false); |
ee7b9f93 JB |
3796 | dev_priv->display.off(crtc); |
3797 | ||
931872fc CW |
3798 | assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane); |
3799 | assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe); | |
cdd59983 CW |
3800 | |
3801 | if (crtc->fb) { | |
3802 | mutex_lock(&dev->struct_mutex); | |
1690e1eb | 3803 | intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj); |
cdd59983 | 3804 | mutex_unlock(&dev->struct_mutex); |
976f8a20 DV |
3805 | crtc->fb = NULL; |
3806 | } | |
3807 | ||
3808 | /* Update computed state. */ | |
3809 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
3810 | if (!connector->encoder || !connector->encoder->crtc) | |
3811 | continue; | |
3812 | ||
3813 | if (connector->encoder->crtc != crtc) | |
3814 | continue; | |
3815 | ||
3816 | connector->dpms = DRM_MODE_DPMS_OFF; | |
3817 | to_intel_encoder(connector->encoder)->connectors_active = false; | |
cdd59983 CW |
3818 | } |
3819 | } | |
3820 | ||
a261b246 | 3821 | void intel_modeset_disable(struct drm_device *dev) |
79e53945 | 3822 | { |
a261b246 DV |
3823 | struct drm_crtc *crtc; |
3824 | ||
3825 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
3826 | if (crtc->enabled) | |
3827 | intel_crtc_disable(crtc); | |
3828 | } | |
79e53945 JB |
3829 | } |
3830 | ||
ea5b213a | 3831 | void intel_encoder_destroy(struct drm_encoder *encoder) |
7e7d76c3 | 3832 | { |
4ef69c7a | 3833 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); |
ea5b213a | 3834 | |
ea5b213a CW |
3835 | drm_encoder_cleanup(encoder); |
3836 | kfree(intel_encoder); | |
7e7d76c3 JB |
3837 | } |
3838 | ||
5ab432ef DV |
3839 | /* Simple dpms helper for encodres with just one connector, no cloning and only |
3840 | * one kind of off state. It clamps all !ON modes to fully OFF and changes the | |
3841 | * state of the entire output pipe. */ | |
3842 | void intel_encoder_dpms(struct intel_encoder *encoder, int mode) | |
7e7d76c3 | 3843 | { |
5ab432ef DV |
3844 | if (mode == DRM_MODE_DPMS_ON) { |
3845 | encoder->connectors_active = true; | |
3846 | ||
b2cabb0e | 3847 | intel_crtc_update_dpms(encoder->base.crtc); |
5ab432ef DV |
3848 | } else { |
3849 | encoder->connectors_active = false; | |
3850 | ||
b2cabb0e | 3851 | intel_crtc_update_dpms(encoder->base.crtc); |
5ab432ef | 3852 | } |
79e53945 JB |
3853 | } |
3854 | ||
0a91ca29 DV |
3855 | /* Cross check the actual hw state with our own modeset state tracking (and it's |
3856 | * internal consistency). */ | |
b980514c | 3857 | static void intel_connector_check_state(struct intel_connector *connector) |
79e53945 | 3858 | { |
0a91ca29 DV |
3859 | if (connector->get_hw_state(connector)) { |
3860 | struct intel_encoder *encoder = connector->encoder; | |
3861 | struct drm_crtc *crtc; | |
3862 | bool encoder_enabled; | |
3863 | enum pipe pipe; | |
3864 | ||
3865 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", | |
3866 | connector->base.base.id, | |
3867 | drm_get_connector_name(&connector->base)); | |
3868 | ||
3869 | WARN(connector->base.dpms == DRM_MODE_DPMS_OFF, | |
3870 | "wrong connector dpms state\n"); | |
3871 | WARN(connector->base.encoder != &encoder->base, | |
3872 | "active connector not linked to encoder\n"); | |
3873 | WARN(!encoder->connectors_active, | |
3874 | "encoder->connectors_active not set\n"); | |
3875 | ||
3876 | encoder_enabled = encoder->get_hw_state(encoder, &pipe); | |
3877 | WARN(!encoder_enabled, "encoder not enabled\n"); | |
3878 | if (WARN_ON(!encoder->base.crtc)) | |
3879 | return; | |
3880 | ||
3881 | crtc = encoder->base.crtc; | |
3882 | ||
3883 | WARN(!crtc->enabled, "crtc not enabled\n"); | |
3884 | WARN(!to_intel_crtc(crtc)->active, "crtc not active\n"); | |
3885 | WARN(pipe != to_intel_crtc(crtc)->pipe, | |
3886 | "encoder active on the wrong pipe\n"); | |
3887 | } | |
79e53945 JB |
3888 | } |
3889 | ||
5ab432ef DV |
3890 | /* Even simpler default implementation, if there's really no special case to |
3891 | * consider. */ | |
3892 | void intel_connector_dpms(struct drm_connector *connector, int mode) | |
79e53945 | 3893 | { |
5ab432ef | 3894 | struct intel_encoder *encoder = intel_attached_encoder(connector); |
d4270e57 | 3895 | |
5ab432ef DV |
3896 | /* All the simple cases only support two dpms states. */ |
3897 | if (mode != DRM_MODE_DPMS_ON) | |
3898 | mode = DRM_MODE_DPMS_OFF; | |
d4270e57 | 3899 | |
5ab432ef DV |
3900 | if (mode == connector->dpms) |
3901 | return; | |
3902 | ||
3903 | connector->dpms = mode; | |
3904 | ||
3905 | /* Only need to change hw state when actually enabled */ | |
3906 | if (encoder->base.crtc) | |
3907 | intel_encoder_dpms(encoder, mode); | |
3908 | else | |
8af6cf88 | 3909 | WARN_ON(encoder->connectors_active != false); |
0a91ca29 | 3910 | |
b980514c | 3911 | intel_modeset_check_state(connector->dev); |
79e53945 JB |
3912 | } |
3913 | ||
f0947c37 DV |
3914 | /* Simple connector->get_hw_state implementation for encoders that support only |
3915 | * one connector and no cloning and hence the encoder state determines the state | |
3916 | * of the connector. */ | |
3917 | bool intel_connector_get_hw_state(struct intel_connector *connector) | |
ea5b213a | 3918 | { |
24929352 | 3919 | enum pipe pipe = 0; |
f0947c37 | 3920 | struct intel_encoder *encoder = connector->encoder; |
ea5b213a | 3921 | |
f0947c37 | 3922 | return encoder->get_hw_state(encoder, &pipe); |
ea5b213a CW |
3923 | } |
3924 | ||
1857e1da DV |
3925 | static bool ironlake_check_fdi_lanes(struct drm_device *dev, enum pipe pipe, |
3926 | struct intel_crtc_config *pipe_config) | |
3927 | { | |
3928 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3929 | struct intel_crtc *pipe_B_crtc = | |
3930 | to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]); | |
3931 | ||
3932 | DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n", | |
3933 | pipe_name(pipe), pipe_config->fdi_lanes); | |
3934 | if (pipe_config->fdi_lanes > 4) { | |
3935 | DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n", | |
3936 | pipe_name(pipe), pipe_config->fdi_lanes); | |
3937 | return false; | |
3938 | } | |
3939 | ||
3940 | if (IS_HASWELL(dev)) { | |
3941 | if (pipe_config->fdi_lanes > 2) { | |
3942 | DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n", | |
3943 | pipe_config->fdi_lanes); | |
3944 | return false; | |
3945 | } else { | |
3946 | return true; | |
3947 | } | |
3948 | } | |
3949 | ||
3950 | if (INTEL_INFO(dev)->num_pipes == 2) | |
3951 | return true; | |
3952 | ||
3953 | /* Ivybridge 3 pipe is really complicated */ | |
3954 | switch (pipe) { | |
3955 | case PIPE_A: | |
3956 | return true; | |
3957 | case PIPE_B: | |
3958 | if (dev_priv->pipe_to_crtc_mapping[PIPE_C]->enabled && | |
3959 | pipe_config->fdi_lanes > 2) { | |
3960 | DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n", | |
3961 | pipe_name(pipe), pipe_config->fdi_lanes); | |
3962 | return false; | |
3963 | } | |
3964 | return true; | |
3965 | case PIPE_C: | |
1e833f40 | 3966 | if (!pipe_has_enabled_pch(pipe_B_crtc) || |
1857e1da DV |
3967 | pipe_B_crtc->config.fdi_lanes <= 2) { |
3968 | if (pipe_config->fdi_lanes > 2) { | |
3969 | DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n", | |
3970 | pipe_name(pipe), pipe_config->fdi_lanes); | |
3971 | return false; | |
3972 | } | |
3973 | } else { | |
3974 | DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n"); | |
3975 | return false; | |
3976 | } | |
3977 | return true; | |
3978 | default: | |
3979 | BUG(); | |
3980 | } | |
3981 | } | |
3982 | ||
e29c22c0 DV |
3983 | #define RETRY 1 |
3984 | static int ironlake_fdi_compute_config(struct intel_crtc *intel_crtc, | |
3985 | struct intel_crtc_config *pipe_config) | |
877d48d5 | 3986 | { |
1857e1da | 3987 | struct drm_device *dev = intel_crtc->base.dev; |
877d48d5 DV |
3988 | struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode; |
3989 | int target_clock, lane, link_bw; | |
e29c22c0 | 3990 | bool setup_ok, needs_recompute = false; |
877d48d5 | 3991 | |
e29c22c0 | 3992 | retry: |
877d48d5 DV |
3993 | /* FDI is a binary signal running at ~2.7GHz, encoding |
3994 | * each output octet as 10 bits. The actual frequency | |
3995 | * is stored as a divider into a 100MHz clock, and the | |
3996 | * mode pixel clock is stored in units of 1KHz. | |
3997 | * Hence the bw of each lane in terms of the mode signal | |
3998 | * is: | |
3999 | */ | |
4000 | link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10; | |
4001 | ||
4002 | if (pipe_config->pixel_target_clock) | |
4003 | target_clock = pipe_config->pixel_target_clock; | |
4004 | else | |
4005 | target_clock = adjusted_mode->clock; | |
4006 | ||
4007 | lane = ironlake_get_lanes_required(target_clock, link_bw, | |
4008 | pipe_config->pipe_bpp); | |
4009 | ||
4010 | pipe_config->fdi_lanes = lane; | |
4011 | ||
4012 | if (pipe_config->pixel_multiplier > 1) | |
4013 | link_bw *= pipe_config->pixel_multiplier; | |
4014 | intel_link_compute_m_n(pipe_config->pipe_bpp, lane, target_clock, | |
4015 | link_bw, &pipe_config->fdi_m_n); | |
1857e1da | 4016 | |
e29c22c0 DV |
4017 | setup_ok = ironlake_check_fdi_lanes(intel_crtc->base.dev, |
4018 | intel_crtc->pipe, pipe_config); | |
4019 | if (!setup_ok && pipe_config->pipe_bpp > 6*3) { | |
4020 | pipe_config->pipe_bpp -= 2*3; | |
4021 | DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n", | |
4022 | pipe_config->pipe_bpp); | |
4023 | needs_recompute = true; | |
4024 | pipe_config->bw_constrained = true; | |
4025 | ||
4026 | goto retry; | |
4027 | } | |
4028 | ||
4029 | if (needs_recompute) | |
4030 | return RETRY; | |
4031 | ||
4032 | return setup_ok ? 0 : -EINVAL; | |
877d48d5 DV |
4033 | } |
4034 | ||
42db64ef PZ |
4035 | static void hsw_compute_ips_config(struct intel_crtc *crtc, |
4036 | struct intel_crtc_config *pipe_config) | |
4037 | { | |
3c4ca58c PZ |
4038 | pipe_config->ips_enabled = i915_enable_ips && |
4039 | hsw_crtc_supports_ips(crtc) && | |
42db64ef PZ |
4040 | pipe_config->pipe_bpp == 24; |
4041 | } | |
4042 | ||
e29c22c0 DV |
4043 | static int intel_crtc_compute_config(struct drm_crtc *crtc, |
4044 | struct intel_crtc_config *pipe_config) | |
79e53945 | 4045 | { |
2c07245f | 4046 | struct drm_device *dev = crtc->dev; |
b8cecdf5 | 4047 | struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode; |
42db64ef | 4048 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
89749350 | 4049 | |
bad720ff | 4050 | if (HAS_PCH_SPLIT(dev)) { |
2c07245f | 4051 | /* FDI link clock is fixed at 2.7G */ |
b8cecdf5 DV |
4052 | if (pipe_config->requested_mode.clock * 3 |
4053 | > IRONLAKE_FDI_FREQ * 4) | |
e29c22c0 | 4054 | return -EINVAL; |
2c07245f | 4055 | } |
89749350 | 4056 | |
f9bef081 DV |
4057 | /* All interlaced capable intel hw wants timings in frames. Note though |
4058 | * that intel_lvds_mode_fixup does some funny tricks with the crtc | |
4059 | * timings, so we need to be careful not to clobber these.*/ | |
7ae89233 | 4060 | if (!pipe_config->timings_set) |
f9bef081 | 4061 | drm_mode_set_crtcinfo(adjusted_mode, 0); |
89749350 | 4062 | |
8693a824 DL |
4063 | /* Cantiga+ cannot handle modes with a hsync front porch of 0. |
4064 | * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw. | |
44f46b42 CW |
4065 | */ |
4066 | if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) && | |
4067 | adjusted_mode->hsync_start == adjusted_mode->hdisplay) | |
e29c22c0 | 4068 | return -EINVAL; |
44f46b42 | 4069 | |
bd080ee5 | 4070 | if ((IS_G4X(dev) || IS_VALLEYVIEW(dev)) && pipe_config->pipe_bpp > 10*3) { |
5d2d38dd | 4071 | pipe_config->pipe_bpp = 10*3; /* 12bpc is gen5+ */ |
bd080ee5 | 4072 | } else if (INTEL_INFO(dev)->gen <= 4 && pipe_config->pipe_bpp > 8*3) { |
5d2d38dd DV |
4073 | /* only a 8bpc pipe, with 6bpc dither through the panel fitter |
4074 | * for lvds. */ | |
4075 | pipe_config->pipe_bpp = 8*3; | |
4076 | } | |
4077 | ||
42db64ef PZ |
4078 | if (IS_HASWELL(dev)) |
4079 | hsw_compute_ips_config(intel_crtc, pipe_config); | |
4080 | ||
877d48d5 | 4081 | if (pipe_config->has_pch_encoder) |
42db64ef | 4082 | return ironlake_fdi_compute_config(intel_crtc, pipe_config); |
877d48d5 | 4083 | |
e29c22c0 | 4084 | return 0; |
79e53945 JB |
4085 | } |
4086 | ||
25eb05fc JB |
4087 | static int valleyview_get_display_clock_speed(struct drm_device *dev) |
4088 | { | |
4089 | return 400000; /* FIXME */ | |
4090 | } | |
4091 | ||
e70236a8 JB |
4092 | static int i945_get_display_clock_speed(struct drm_device *dev) |
4093 | { | |
4094 | return 400000; | |
4095 | } | |
79e53945 | 4096 | |
e70236a8 | 4097 | static int i915_get_display_clock_speed(struct drm_device *dev) |
79e53945 | 4098 | { |
e70236a8 JB |
4099 | return 333000; |
4100 | } | |
79e53945 | 4101 | |
e70236a8 JB |
4102 | static int i9xx_misc_get_display_clock_speed(struct drm_device *dev) |
4103 | { | |
4104 | return 200000; | |
4105 | } | |
79e53945 | 4106 | |
e70236a8 JB |
4107 | static int i915gm_get_display_clock_speed(struct drm_device *dev) |
4108 | { | |
4109 | u16 gcfgc = 0; | |
79e53945 | 4110 | |
e70236a8 JB |
4111 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); |
4112 | ||
4113 | if (gcfgc & GC_LOW_FREQUENCY_ENABLE) | |
4114 | return 133000; | |
4115 | else { | |
4116 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
4117 | case GC_DISPLAY_CLOCK_333_MHZ: | |
4118 | return 333000; | |
4119 | default: | |
4120 | case GC_DISPLAY_CLOCK_190_200_MHZ: | |
4121 | return 190000; | |
79e53945 | 4122 | } |
e70236a8 JB |
4123 | } |
4124 | } | |
4125 | ||
4126 | static int i865_get_display_clock_speed(struct drm_device *dev) | |
4127 | { | |
4128 | return 266000; | |
4129 | } | |
4130 | ||
4131 | static int i855_get_display_clock_speed(struct drm_device *dev) | |
4132 | { | |
4133 | u16 hpllcc = 0; | |
4134 | /* Assume that the hardware is in the high speed state. This | |
4135 | * should be the default. | |
4136 | */ | |
4137 | switch (hpllcc & GC_CLOCK_CONTROL_MASK) { | |
4138 | case GC_CLOCK_133_200: | |
4139 | case GC_CLOCK_100_200: | |
4140 | return 200000; | |
4141 | case GC_CLOCK_166_250: | |
4142 | return 250000; | |
4143 | case GC_CLOCK_100_133: | |
79e53945 | 4144 | return 133000; |
e70236a8 | 4145 | } |
79e53945 | 4146 | |
e70236a8 JB |
4147 | /* Shouldn't happen */ |
4148 | return 0; | |
4149 | } | |
79e53945 | 4150 | |
e70236a8 JB |
4151 | static int i830_get_display_clock_speed(struct drm_device *dev) |
4152 | { | |
4153 | return 133000; | |
79e53945 JB |
4154 | } |
4155 | ||
2c07245f | 4156 | static void |
a65851af | 4157 | intel_reduce_m_n_ratio(uint32_t *num, uint32_t *den) |
2c07245f | 4158 | { |
a65851af VS |
4159 | while (*num > DATA_LINK_M_N_MASK || |
4160 | *den > DATA_LINK_M_N_MASK) { | |
2c07245f ZW |
4161 | *num >>= 1; |
4162 | *den >>= 1; | |
4163 | } | |
4164 | } | |
4165 | ||
a65851af VS |
4166 | static void compute_m_n(unsigned int m, unsigned int n, |
4167 | uint32_t *ret_m, uint32_t *ret_n) | |
4168 | { | |
4169 | *ret_n = min_t(unsigned int, roundup_pow_of_two(n), DATA_LINK_N_MAX); | |
4170 | *ret_m = div_u64((uint64_t) m * *ret_n, n); | |
4171 | intel_reduce_m_n_ratio(ret_m, ret_n); | |
4172 | } | |
4173 | ||
e69d0bc1 DV |
4174 | void |
4175 | intel_link_compute_m_n(int bits_per_pixel, int nlanes, | |
4176 | int pixel_clock, int link_clock, | |
4177 | struct intel_link_m_n *m_n) | |
2c07245f | 4178 | { |
e69d0bc1 | 4179 | m_n->tu = 64; |
a65851af VS |
4180 | |
4181 | compute_m_n(bits_per_pixel * pixel_clock, | |
4182 | link_clock * nlanes * 8, | |
4183 | &m_n->gmch_m, &m_n->gmch_n); | |
4184 | ||
4185 | compute_m_n(pixel_clock, link_clock, | |
4186 | &m_n->link_m, &m_n->link_n); | |
2c07245f ZW |
4187 | } |
4188 | ||
a7615030 CW |
4189 | static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) |
4190 | { | |
72bbe58c KP |
4191 | if (i915_panel_use_ssc >= 0) |
4192 | return i915_panel_use_ssc != 0; | |
41aa3448 | 4193 | return dev_priv->vbt.lvds_use_ssc |
435793df | 4194 | && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE); |
a7615030 CW |
4195 | } |
4196 | ||
a0c4da24 JB |
4197 | static int vlv_get_refclk(struct drm_crtc *crtc) |
4198 | { | |
4199 | struct drm_device *dev = crtc->dev; | |
4200 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4201 | int refclk = 27000; /* for DP & HDMI */ | |
4202 | ||
4203 | return 100000; /* only one validated so far */ | |
4204 | ||
4205 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { | |
4206 | refclk = 96000; | |
4207 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
4208 | if (intel_panel_use_ssc(dev_priv)) | |
4209 | refclk = 100000; | |
4210 | else | |
4211 | refclk = 96000; | |
4212 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) { | |
4213 | refclk = 100000; | |
4214 | } | |
4215 | ||
4216 | return refclk; | |
4217 | } | |
4218 | ||
c65d77d8 JB |
4219 | static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors) |
4220 | { | |
4221 | struct drm_device *dev = crtc->dev; | |
4222 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4223 | int refclk; | |
4224 | ||
a0c4da24 JB |
4225 | if (IS_VALLEYVIEW(dev)) { |
4226 | refclk = vlv_get_refclk(crtc); | |
4227 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
c65d77d8 | 4228 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) { |
41aa3448 | 4229 | refclk = dev_priv->vbt.lvds_ssc_freq * 1000; |
c65d77d8 JB |
4230 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", |
4231 | refclk / 1000); | |
4232 | } else if (!IS_GEN2(dev)) { | |
4233 | refclk = 96000; | |
4234 | } else { | |
4235 | refclk = 48000; | |
4236 | } | |
4237 | ||
4238 | return refclk; | |
4239 | } | |
4240 | ||
7429e9d4 DV |
4241 | static uint32_t pnv_dpll_compute_fp(struct dpll *dpll) |
4242 | { | |
4243 | return (1 << dpll->n) << 16 | dpll->m1 << 8 | dpll->m2; | |
4244 | } | |
4245 | ||
4246 | static uint32_t i9xx_dpll_compute_fp(struct dpll *dpll) | |
4247 | { | |
4248 | return dpll->n << 16 | dpll->m1 << 8 | dpll->m2; | |
4249 | } | |
4250 | ||
f47709a9 | 4251 | static void i9xx_update_pll_dividers(struct intel_crtc *crtc, |
a7516a05 JB |
4252 | intel_clock_t *reduced_clock) |
4253 | { | |
f47709a9 | 4254 | struct drm_device *dev = crtc->base.dev; |
a7516a05 | 4255 | struct drm_i915_private *dev_priv = dev->dev_private; |
f47709a9 | 4256 | int pipe = crtc->pipe; |
a7516a05 JB |
4257 | u32 fp, fp2 = 0; |
4258 | ||
4259 | if (IS_PINEVIEW(dev)) { | |
7429e9d4 | 4260 | fp = pnv_dpll_compute_fp(&crtc->config.dpll); |
a7516a05 | 4261 | if (reduced_clock) |
7429e9d4 | 4262 | fp2 = pnv_dpll_compute_fp(reduced_clock); |
a7516a05 | 4263 | } else { |
7429e9d4 | 4264 | fp = i9xx_dpll_compute_fp(&crtc->config.dpll); |
a7516a05 | 4265 | if (reduced_clock) |
7429e9d4 | 4266 | fp2 = i9xx_dpll_compute_fp(reduced_clock); |
a7516a05 JB |
4267 | } |
4268 | ||
4269 | I915_WRITE(FP0(pipe), fp); | |
4270 | ||
f47709a9 DV |
4271 | crtc->lowfreq_avail = false; |
4272 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) && | |
a7516a05 JB |
4273 | reduced_clock && i915_powersave) { |
4274 | I915_WRITE(FP1(pipe), fp2); | |
f47709a9 | 4275 | crtc->lowfreq_avail = true; |
a7516a05 JB |
4276 | } else { |
4277 | I915_WRITE(FP1(pipe), fp); | |
4278 | } | |
4279 | } | |
4280 | ||
89b667f8 JB |
4281 | static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv) |
4282 | { | |
4283 | u32 reg_val; | |
4284 | ||
4285 | /* | |
4286 | * PLLB opamp always calibrates to max value of 0x3f, force enable it | |
4287 | * and set it to a reasonable value instead. | |
4288 | */ | |
ae99258f | 4289 | reg_val = vlv_dpio_read(dev_priv, DPIO_IREF(1)); |
89b667f8 JB |
4290 | reg_val &= 0xffffff00; |
4291 | reg_val |= 0x00000030; | |
ae99258f | 4292 | vlv_dpio_write(dev_priv, DPIO_IREF(1), reg_val); |
89b667f8 | 4293 | |
ae99258f | 4294 | reg_val = vlv_dpio_read(dev_priv, DPIO_CALIBRATION); |
89b667f8 JB |
4295 | reg_val &= 0x8cffffff; |
4296 | reg_val = 0x8c000000; | |
ae99258f | 4297 | vlv_dpio_write(dev_priv, DPIO_CALIBRATION, reg_val); |
89b667f8 | 4298 | |
ae99258f | 4299 | reg_val = vlv_dpio_read(dev_priv, DPIO_IREF(1)); |
89b667f8 | 4300 | reg_val &= 0xffffff00; |
ae99258f | 4301 | vlv_dpio_write(dev_priv, DPIO_IREF(1), reg_val); |
89b667f8 | 4302 | |
ae99258f | 4303 | reg_val = vlv_dpio_read(dev_priv, DPIO_CALIBRATION); |
89b667f8 JB |
4304 | reg_val &= 0x00ffffff; |
4305 | reg_val |= 0xb0000000; | |
ae99258f | 4306 | vlv_dpio_write(dev_priv, DPIO_CALIBRATION, reg_val); |
89b667f8 JB |
4307 | } |
4308 | ||
b551842d DV |
4309 | static void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc, |
4310 | struct intel_link_m_n *m_n) | |
4311 | { | |
4312 | struct drm_device *dev = crtc->base.dev; | |
4313 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4314 | int pipe = crtc->pipe; | |
4315 | ||
e3b95f1e DV |
4316 | I915_WRITE(PCH_TRANS_DATA_M1(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m); |
4317 | I915_WRITE(PCH_TRANS_DATA_N1(pipe), m_n->gmch_n); | |
4318 | I915_WRITE(PCH_TRANS_LINK_M1(pipe), m_n->link_m); | |
4319 | I915_WRITE(PCH_TRANS_LINK_N1(pipe), m_n->link_n); | |
b551842d DV |
4320 | } |
4321 | ||
4322 | static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc, | |
4323 | struct intel_link_m_n *m_n) | |
4324 | { | |
4325 | struct drm_device *dev = crtc->base.dev; | |
4326 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4327 | int pipe = crtc->pipe; | |
4328 | enum transcoder transcoder = crtc->config.cpu_transcoder; | |
4329 | ||
4330 | if (INTEL_INFO(dev)->gen >= 5) { | |
4331 | I915_WRITE(PIPE_DATA_M1(transcoder), TU_SIZE(m_n->tu) | m_n->gmch_m); | |
4332 | I915_WRITE(PIPE_DATA_N1(transcoder), m_n->gmch_n); | |
4333 | I915_WRITE(PIPE_LINK_M1(transcoder), m_n->link_m); | |
4334 | I915_WRITE(PIPE_LINK_N1(transcoder), m_n->link_n); | |
4335 | } else { | |
e3b95f1e DV |
4336 | I915_WRITE(PIPE_DATA_M_G4X(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m); |
4337 | I915_WRITE(PIPE_DATA_N_G4X(pipe), m_n->gmch_n); | |
4338 | I915_WRITE(PIPE_LINK_M_G4X(pipe), m_n->link_m); | |
4339 | I915_WRITE(PIPE_LINK_N_G4X(pipe), m_n->link_n); | |
b551842d DV |
4340 | } |
4341 | } | |
4342 | ||
03afc4a2 DV |
4343 | static void intel_dp_set_m_n(struct intel_crtc *crtc) |
4344 | { | |
4345 | if (crtc->config.has_pch_encoder) | |
4346 | intel_pch_transcoder_set_m_n(crtc, &crtc->config.dp_m_n); | |
4347 | else | |
4348 | intel_cpu_transcoder_set_m_n(crtc, &crtc->config.dp_m_n); | |
4349 | } | |
4350 | ||
f47709a9 | 4351 | static void vlv_update_pll(struct intel_crtc *crtc) |
a0c4da24 | 4352 | { |
f47709a9 | 4353 | struct drm_device *dev = crtc->base.dev; |
a0c4da24 | 4354 | struct drm_i915_private *dev_priv = dev->dev_private; |
89b667f8 JB |
4355 | struct drm_display_mode *adjusted_mode = |
4356 | &crtc->config.adjusted_mode; | |
4357 | struct intel_encoder *encoder; | |
f47709a9 | 4358 | int pipe = crtc->pipe; |
89b667f8 | 4359 | u32 dpll, mdiv; |
a0c4da24 | 4360 | u32 bestn, bestm1, bestm2, bestp1, bestp2; |
89b667f8 | 4361 | bool is_hdmi; |
198a037f | 4362 | u32 coreclk, reg_val, dpll_md; |
a0c4da24 | 4363 | |
09153000 DV |
4364 | mutex_lock(&dev_priv->dpio_lock); |
4365 | ||
89b667f8 | 4366 | is_hdmi = intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI); |
a0c4da24 | 4367 | |
f47709a9 DV |
4368 | bestn = crtc->config.dpll.n; |
4369 | bestm1 = crtc->config.dpll.m1; | |
4370 | bestm2 = crtc->config.dpll.m2; | |
4371 | bestp1 = crtc->config.dpll.p1; | |
4372 | bestp2 = crtc->config.dpll.p2; | |
a0c4da24 | 4373 | |
89b667f8 JB |
4374 | /* See eDP HDMI DPIO driver vbios notes doc */ |
4375 | ||
4376 | /* PLL B needs special handling */ | |
4377 | if (pipe) | |
4378 | vlv_pllb_recal_opamp(dev_priv); | |
4379 | ||
4380 | /* Set up Tx target for periodic Rcomp update */ | |
ae99258f | 4381 | vlv_dpio_write(dev_priv, DPIO_IREF_BCAST, 0x0100000f); |
89b667f8 JB |
4382 | |
4383 | /* Disable target IRef on PLL */ | |
ae99258f | 4384 | reg_val = vlv_dpio_read(dev_priv, DPIO_IREF_CTL(pipe)); |
89b667f8 | 4385 | reg_val &= 0x00ffffff; |
ae99258f | 4386 | vlv_dpio_write(dev_priv, DPIO_IREF_CTL(pipe), reg_val); |
89b667f8 JB |
4387 | |
4388 | /* Disable fast lock */ | |
ae99258f | 4389 | vlv_dpio_write(dev_priv, DPIO_FASTCLK_DISABLE, 0x610); |
89b667f8 JB |
4390 | |
4391 | /* Set idtafcrecal before PLL is enabled */ | |
a0c4da24 JB |
4392 | mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK)); |
4393 | mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT)); | |
4394 | mdiv |= ((bestn << DPIO_N_SHIFT)); | |
a0c4da24 | 4395 | mdiv |= (1 << DPIO_K_SHIFT); |
7df5080b JB |
4396 | |
4397 | /* | |
4398 | * Post divider depends on pixel clock rate, DAC vs digital (and LVDS, | |
4399 | * but we don't support that). | |
4400 | * Note: don't use the DAC post divider as it seems unstable. | |
4401 | */ | |
4402 | mdiv |= (DPIO_POST_DIV_HDMIDP << DPIO_POST_DIV_SHIFT); | |
ae99258f | 4403 | vlv_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv); |
a0c4da24 | 4404 | |
89b667f8 | 4405 | mdiv |= DPIO_ENABLE_CALIBRATION; |
ae99258f | 4406 | vlv_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv); |
a0c4da24 | 4407 | |
89b667f8 JB |
4408 | /* Set HBR and RBR LPF coefficients */ |
4409 | if (adjusted_mode->clock == 162000 || | |
4410 | intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI)) | |
ae99258f | 4411 | vlv_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe), |
89b667f8 JB |
4412 | 0x005f0021); |
4413 | else | |
ae99258f | 4414 | vlv_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe), |
89b667f8 JB |
4415 | 0x00d0000f); |
4416 | ||
4417 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP) || | |
4418 | intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT)) { | |
4419 | /* Use SSC source */ | |
4420 | if (!pipe) | |
ae99258f | 4421 | vlv_dpio_write(dev_priv, DPIO_REFSFR(pipe), |
89b667f8 JB |
4422 | 0x0df40000); |
4423 | else | |
ae99258f | 4424 | vlv_dpio_write(dev_priv, DPIO_REFSFR(pipe), |
89b667f8 JB |
4425 | 0x0df70000); |
4426 | } else { /* HDMI or VGA */ | |
4427 | /* Use bend source */ | |
4428 | if (!pipe) | |
ae99258f | 4429 | vlv_dpio_write(dev_priv, DPIO_REFSFR(pipe), |
89b667f8 JB |
4430 | 0x0df70000); |
4431 | else | |
ae99258f | 4432 | vlv_dpio_write(dev_priv, DPIO_REFSFR(pipe), |
89b667f8 JB |
4433 | 0x0df40000); |
4434 | } | |
a0c4da24 | 4435 | |
ae99258f | 4436 | coreclk = vlv_dpio_read(dev_priv, DPIO_CORE_CLK(pipe)); |
89b667f8 JB |
4437 | coreclk = (coreclk & 0x0000ff00) | 0x01c00000; |
4438 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT) || | |
4439 | intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP)) | |
4440 | coreclk |= 0x01000000; | |
ae99258f | 4441 | vlv_dpio_write(dev_priv, DPIO_CORE_CLK(pipe), coreclk); |
a0c4da24 | 4442 | |
ae99258f | 4443 | vlv_dpio_write(dev_priv, DPIO_PLL_CML(pipe), 0x87871000); |
a0c4da24 | 4444 | |
89b667f8 JB |
4445 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) |
4446 | if (encoder->pre_pll_enable) | |
4447 | encoder->pre_pll_enable(encoder); | |
2a8f64ca | 4448 | |
89b667f8 JB |
4449 | /* Enable DPIO clock input */ |
4450 | dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REFA_CLK_ENABLE_VLV | | |
4451 | DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_CLOCK_VLV; | |
4452 | if (pipe) | |
4453 | dpll |= DPLL_INTEGRATED_CRI_CLK_VLV; | |
2a8f64ca | 4454 | |
89b667f8 | 4455 | dpll |= DPLL_VCO_ENABLE; |
2a8f64ca | 4456 | I915_WRITE(DPLL(pipe), dpll); |
2a8f64ca VP |
4457 | POSTING_READ(DPLL(pipe)); |
4458 | udelay(150); | |
a0c4da24 | 4459 | |
89b667f8 JB |
4460 | if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1)) |
4461 | DRM_ERROR("DPLL %d failed to lock\n", pipe); | |
4462 | ||
198a037f DV |
4463 | dpll_md = 0; |
4464 | if (crtc->config.pixel_multiplier > 1) { | |
4465 | dpll_md = (crtc->config.pixel_multiplier - 1) | |
4466 | << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
2a8f64ca | 4467 | } |
198a037f DV |
4468 | I915_WRITE(DPLL_MD(pipe), dpll_md); |
4469 | POSTING_READ(DPLL_MD(pipe)); | |
f47709a9 | 4470 | |
89b667f8 JB |
4471 | if (crtc->config.has_dp_encoder) |
4472 | intel_dp_set_m_n(crtc); | |
09153000 DV |
4473 | |
4474 | mutex_unlock(&dev_priv->dpio_lock); | |
a0c4da24 JB |
4475 | } |
4476 | ||
f47709a9 DV |
4477 | static void i9xx_update_pll(struct intel_crtc *crtc, |
4478 | intel_clock_t *reduced_clock, | |
eb1cbe48 DV |
4479 | int num_connectors) |
4480 | { | |
f47709a9 | 4481 | struct drm_device *dev = crtc->base.dev; |
eb1cbe48 | 4482 | struct drm_i915_private *dev_priv = dev->dev_private; |
dafd226c | 4483 | struct intel_encoder *encoder; |
f47709a9 | 4484 | int pipe = crtc->pipe; |
eb1cbe48 DV |
4485 | u32 dpll; |
4486 | bool is_sdvo; | |
f47709a9 | 4487 | struct dpll *clock = &crtc->config.dpll; |
eb1cbe48 | 4488 | |
f47709a9 | 4489 | i9xx_update_pll_dividers(crtc, reduced_clock); |
2a8f64ca | 4490 | |
f47709a9 DV |
4491 | is_sdvo = intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_SDVO) || |
4492 | intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI); | |
eb1cbe48 DV |
4493 | |
4494 | dpll = DPLL_VGA_MODE_DIS; | |
4495 | ||
f47709a9 | 4496 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)) |
eb1cbe48 DV |
4497 | dpll |= DPLLB_MODE_LVDS; |
4498 | else | |
4499 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
6cc5f341 | 4500 | |
198a037f DV |
4501 | if ((crtc->config.pixel_multiplier > 1) && |
4502 | (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))) { | |
4503 | dpll |= (crtc->config.pixel_multiplier - 1) | |
4504 | << SDVO_MULTIPLIER_SHIFT_HIRES; | |
eb1cbe48 | 4505 | } |
198a037f DV |
4506 | |
4507 | if (is_sdvo) | |
4508 | dpll |= DPLL_DVO_HIGH_SPEED; | |
4509 | ||
f47709a9 | 4510 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT)) |
eb1cbe48 DV |
4511 | dpll |= DPLL_DVO_HIGH_SPEED; |
4512 | ||
4513 | /* compute bitmask from p1 value */ | |
4514 | if (IS_PINEVIEW(dev)) | |
4515 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW; | |
4516 | else { | |
4517 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4518 | if (IS_G4X(dev) && reduced_clock) | |
4519 | dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
4520 | } | |
4521 | switch (clock->p2) { | |
4522 | case 5: | |
4523 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
4524 | break; | |
4525 | case 7: | |
4526 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
4527 | break; | |
4528 | case 10: | |
4529 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
4530 | break; | |
4531 | case 14: | |
4532 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
4533 | break; | |
4534 | } | |
4535 | if (INTEL_INFO(dev)->gen >= 4) | |
4536 | dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT); | |
4537 | ||
09ede541 | 4538 | if (crtc->config.sdvo_tv_clock) |
eb1cbe48 | 4539 | dpll |= PLL_REF_INPUT_TVCLKINBC; |
f47709a9 | 4540 | else if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) && |
eb1cbe48 DV |
4541 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
4542 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
4543 | else | |
4544 | dpll |= PLL_REF_INPUT_DREFCLK; | |
4545 | ||
4546 | dpll |= DPLL_VCO_ENABLE; | |
4547 | I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); | |
4548 | POSTING_READ(DPLL(pipe)); | |
4549 | udelay(150); | |
4550 | ||
f47709a9 | 4551 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) |
dafd226c DV |
4552 | if (encoder->pre_pll_enable) |
4553 | encoder->pre_pll_enable(encoder); | |
eb1cbe48 | 4554 | |
f47709a9 DV |
4555 | if (crtc->config.has_dp_encoder) |
4556 | intel_dp_set_m_n(crtc); | |
eb1cbe48 DV |
4557 | |
4558 | I915_WRITE(DPLL(pipe), dpll); | |
4559 | ||
4560 | /* Wait for the clocks to stabilize. */ | |
4561 | POSTING_READ(DPLL(pipe)); | |
4562 | udelay(150); | |
4563 | ||
4564 | if (INTEL_INFO(dev)->gen >= 4) { | |
198a037f DV |
4565 | u32 dpll_md = 0; |
4566 | if (crtc->config.pixel_multiplier > 1) { | |
4567 | dpll_md = (crtc->config.pixel_multiplier - 1) | |
4568 | << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
eb1cbe48 | 4569 | } |
198a037f | 4570 | I915_WRITE(DPLL_MD(pipe), dpll_md); |
eb1cbe48 DV |
4571 | } else { |
4572 | /* The pixel multiplier can only be updated once the | |
4573 | * DPLL is enabled and the clocks are stable. | |
4574 | * | |
4575 | * So write it again. | |
4576 | */ | |
4577 | I915_WRITE(DPLL(pipe), dpll); | |
4578 | } | |
4579 | } | |
4580 | ||
f47709a9 | 4581 | static void i8xx_update_pll(struct intel_crtc *crtc, |
eb1cbe48 | 4582 | struct drm_display_mode *adjusted_mode, |
f47709a9 | 4583 | intel_clock_t *reduced_clock, |
eb1cbe48 DV |
4584 | int num_connectors) |
4585 | { | |
f47709a9 | 4586 | struct drm_device *dev = crtc->base.dev; |
eb1cbe48 | 4587 | struct drm_i915_private *dev_priv = dev->dev_private; |
dafd226c | 4588 | struct intel_encoder *encoder; |
f47709a9 | 4589 | int pipe = crtc->pipe; |
eb1cbe48 | 4590 | u32 dpll; |
f47709a9 | 4591 | struct dpll *clock = &crtc->config.dpll; |
eb1cbe48 | 4592 | |
f47709a9 | 4593 | i9xx_update_pll_dividers(crtc, reduced_clock); |
2a8f64ca | 4594 | |
eb1cbe48 DV |
4595 | dpll = DPLL_VGA_MODE_DIS; |
4596 | ||
f47709a9 | 4597 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)) { |
eb1cbe48 DV |
4598 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
4599 | } else { | |
4600 | if (clock->p1 == 2) | |
4601 | dpll |= PLL_P1_DIVIDE_BY_TWO; | |
4602 | else | |
4603 | dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4604 | if (clock->p2 == 4) | |
4605 | dpll |= PLL_P2_DIVIDE_BY_4; | |
4606 | } | |
4607 | ||
f47709a9 | 4608 | if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) && |
eb1cbe48 DV |
4609 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
4610 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
4611 | else | |
4612 | dpll |= PLL_REF_INPUT_DREFCLK; | |
4613 | ||
4614 | dpll |= DPLL_VCO_ENABLE; | |
4615 | I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); | |
4616 | POSTING_READ(DPLL(pipe)); | |
4617 | udelay(150); | |
4618 | ||
f47709a9 | 4619 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) |
dafd226c DV |
4620 | if (encoder->pre_pll_enable) |
4621 | encoder->pre_pll_enable(encoder); | |
eb1cbe48 | 4622 | |
5b5896e4 DV |
4623 | I915_WRITE(DPLL(pipe), dpll); |
4624 | ||
4625 | /* Wait for the clocks to stabilize. */ | |
4626 | POSTING_READ(DPLL(pipe)); | |
4627 | udelay(150); | |
4628 | ||
eb1cbe48 DV |
4629 | /* The pixel multiplier can only be updated once the |
4630 | * DPLL is enabled and the clocks are stable. | |
4631 | * | |
4632 | * So write it again. | |
4633 | */ | |
4634 | I915_WRITE(DPLL(pipe), dpll); | |
4635 | } | |
4636 | ||
b0e77b9c PZ |
4637 | static void intel_set_pipe_timings(struct intel_crtc *intel_crtc, |
4638 | struct drm_display_mode *mode, | |
4639 | struct drm_display_mode *adjusted_mode) | |
4640 | { | |
4641 | struct drm_device *dev = intel_crtc->base.dev; | |
4642 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4643 | enum pipe pipe = intel_crtc->pipe; | |
3b117c8f | 4644 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
4d8a62ea DV |
4645 | uint32_t vsyncshift, crtc_vtotal, crtc_vblank_end; |
4646 | ||
4647 | /* We need to be careful not to changed the adjusted mode, for otherwise | |
4648 | * the hw state checker will get angry at the mismatch. */ | |
4649 | crtc_vtotal = adjusted_mode->crtc_vtotal; | |
4650 | crtc_vblank_end = adjusted_mode->crtc_vblank_end; | |
b0e77b9c PZ |
4651 | |
4652 | if (!IS_GEN2(dev) && adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { | |
4653 | /* the chip adds 2 halflines automatically */ | |
4d8a62ea DV |
4654 | crtc_vtotal -= 1; |
4655 | crtc_vblank_end -= 1; | |
b0e77b9c PZ |
4656 | vsyncshift = adjusted_mode->crtc_hsync_start |
4657 | - adjusted_mode->crtc_htotal / 2; | |
4658 | } else { | |
4659 | vsyncshift = 0; | |
4660 | } | |
4661 | ||
4662 | if (INTEL_INFO(dev)->gen > 3) | |
fe2b8f9d | 4663 | I915_WRITE(VSYNCSHIFT(cpu_transcoder), vsyncshift); |
b0e77b9c | 4664 | |
fe2b8f9d | 4665 | I915_WRITE(HTOTAL(cpu_transcoder), |
b0e77b9c PZ |
4666 | (adjusted_mode->crtc_hdisplay - 1) | |
4667 | ((adjusted_mode->crtc_htotal - 1) << 16)); | |
fe2b8f9d | 4668 | I915_WRITE(HBLANK(cpu_transcoder), |
b0e77b9c PZ |
4669 | (adjusted_mode->crtc_hblank_start - 1) | |
4670 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); | |
fe2b8f9d | 4671 | I915_WRITE(HSYNC(cpu_transcoder), |
b0e77b9c PZ |
4672 | (adjusted_mode->crtc_hsync_start - 1) | |
4673 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); | |
4674 | ||
fe2b8f9d | 4675 | I915_WRITE(VTOTAL(cpu_transcoder), |
b0e77b9c | 4676 | (adjusted_mode->crtc_vdisplay - 1) | |
4d8a62ea | 4677 | ((crtc_vtotal - 1) << 16)); |
fe2b8f9d | 4678 | I915_WRITE(VBLANK(cpu_transcoder), |
b0e77b9c | 4679 | (adjusted_mode->crtc_vblank_start - 1) | |
4d8a62ea | 4680 | ((crtc_vblank_end - 1) << 16)); |
fe2b8f9d | 4681 | I915_WRITE(VSYNC(cpu_transcoder), |
b0e77b9c PZ |
4682 | (adjusted_mode->crtc_vsync_start - 1) | |
4683 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); | |
4684 | ||
b5e508d4 PZ |
4685 | /* Workaround: when the EDP input selection is B, the VTOTAL_B must be |
4686 | * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is | |
4687 | * documented on the DDI_FUNC_CTL register description, EDP Input Select | |
4688 | * bits. */ | |
4689 | if (IS_HASWELL(dev) && cpu_transcoder == TRANSCODER_EDP && | |
4690 | (pipe == PIPE_B || pipe == PIPE_C)) | |
4691 | I915_WRITE(VTOTAL(pipe), I915_READ(VTOTAL(cpu_transcoder))); | |
4692 | ||
b0e77b9c PZ |
4693 | /* pipesrc controls the size that is scaled from, which should |
4694 | * always be the user's requested size. | |
4695 | */ | |
4696 | I915_WRITE(PIPESRC(pipe), | |
4697 | ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); | |
4698 | } | |
4699 | ||
1bd1bd80 DV |
4700 | static void intel_get_pipe_timings(struct intel_crtc *crtc, |
4701 | struct intel_crtc_config *pipe_config) | |
4702 | { | |
4703 | struct drm_device *dev = crtc->base.dev; | |
4704 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4705 | enum transcoder cpu_transcoder = pipe_config->cpu_transcoder; | |
4706 | uint32_t tmp; | |
4707 | ||
4708 | tmp = I915_READ(HTOTAL(cpu_transcoder)); | |
4709 | pipe_config->adjusted_mode.crtc_hdisplay = (tmp & 0xffff) + 1; | |
4710 | pipe_config->adjusted_mode.crtc_htotal = ((tmp >> 16) & 0xffff) + 1; | |
4711 | tmp = I915_READ(HBLANK(cpu_transcoder)); | |
4712 | pipe_config->adjusted_mode.crtc_hblank_start = (tmp & 0xffff) + 1; | |
4713 | pipe_config->adjusted_mode.crtc_hblank_end = ((tmp >> 16) & 0xffff) + 1; | |
4714 | tmp = I915_READ(HSYNC(cpu_transcoder)); | |
4715 | pipe_config->adjusted_mode.crtc_hsync_start = (tmp & 0xffff) + 1; | |
4716 | pipe_config->adjusted_mode.crtc_hsync_end = ((tmp >> 16) & 0xffff) + 1; | |
4717 | ||
4718 | tmp = I915_READ(VTOTAL(cpu_transcoder)); | |
4719 | pipe_config->adjusted_mode.crtc_vdisplay = (tmp & 0xffff) + 1; | |
4720 | pipe_config->adjusted_mode.crtc_vtotal = ((tmp >> 16) & 0xffff) + 1; | |
4721 | tmp = I915_READ(VBLANK(cpu_transcoder)); | |
4722 | pipe_config->adjusted_mode.crtc_vblank_start = (tmp & 0xffff) + 1; | |
4723 | pipe_config->adjusted_mode.crtc_vblank_end = ((tmp >> 16) & 0xffff) + 1; | |
4724 | tmp = I915_READ(VSYNC(cpu_transcoder)); | |
4725 | pipe_config->adjusted_mode.crtc_vsync_start = (tmp & 0xffff) + 1; | |
4726 | pipe_config->adjusted_mode.crtc_vsync_end = ((tmp >> 16) & 0xffff) + 1; | |
4727 | ||
4728 | if (I915_READ(PIPECONF(cpu_transcoder)) & PIPECONF_INTERLACE_MASK) { | |
4729 | pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_INTERLACE; | |
4730 | pipe_config->adjusted_mode.crtc_vtotal += 1; | |
4731 | pipe_config->adjusted_mode.crtc_vblank_end += 1; | |
4732 | } | |
4733 | ||
4734 | tmp = I915_READ(PIPESRC(crtc->pipe)); | |
4735 | pipe_config->requested_mode.vdisplay = (tmp & 0xffff) + 1; | |
4736 | pipe_config->requested_mode.hdisplay = ((tmp >> 16) & 0xffff) + 1; | |
4737 | } | |
4738 | ||
84b046f3 DV |
4739 | static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc) |
4740 | { | |
4741 | struct drm_device *dev = intel_crtc->base.dev; | |
4742 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4743 | uint32_t pipeconf; | |
4744 | ||
4745 | pipeconf = I915_READ(PIPECONF(intel_crtc->pipe)); | |
4746 | ||
4747 | if (intel_crtc->pipe == 0 && INTEL_INFO(dev)->gen < 4) { | |
4748 | /* Enable pixel doubling when the dot clock is > 90% of the (display) | |
4749 | * core speed. | |
4750 | * | |
4751 | * XXX: No double-wide on 915GM pipe B. Is that the only reason for the | |
4752 | * pipe == 0 check? | |
4753 | */ | |
4754 | if (intel_crtc->config.requested_mode.clock > | |
4755 | dev_priv->display.get_display_clock_speed(dev) * 9 / 10) | |
4756 | pipeconf |= PIPECONF_DOUBLE_WIDE; | |
4757 | else | |
4758 | pipeconf &= ~PIPECONF_DOUBLE_WIDE; | |
4759 | } | |
4760 | ||
ff9ce46e DV |
4761 | /* only g4x and later have fancy bpc/dither controls */ |
4762 | if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) { | |
4763 | pipeconf &= ~(PIPECONF_BPC_MASK | | |
4764 | PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK); | |
4765 | ||
4766 | /* Bspec claims that we can't use dithering for 30bpp pipes. */ | |
4767 | if (intel_crtc->config.dither && intel_crtc->config.pipe_bpp != 30) | |
4768 | pipeconf |= PIPECONF_DITHER_EN | | |
84b046f3 | 4769 | PIPECONF_DITHER_TYPE_SP; |
84b046f3 | 4770 | |
ff9ce46e DV |
4771 | switch (intel_crtc->config.pipe_bpp) { |
4772 | case 18: | |
4773 | pipeconf |= PIPECONF_6BPC; | |
4774 | break; | |
4775 | case 24: | |
4776 | pipeconf |= PIPECONF_8BPC; | |
4777 | break; | |
4778 | case 30: | |
4779 | pipeconf |= PIPECONF_10BPC; | |
4780 | break; | |
4781 | default: | |
4782 | /* Case prevented by intel_choose_pipe_bpp_dither. */ | |
4783 | BUG(); | |
84b046f3 DV |
4784 | } |
4785 | } | |
4786 | ||
4787 | if (HAS_PIPE_CXSR(dev)) { | |
4788 | if (intel_crtc->lowfreq_avail) { | |
4789 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); | |
4790 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; | |
4791 | } else { | |
4792 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); | |
4793 | pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK; | |
4794 | } | |
4795 | } | |
4796 | ||
4797 | pipeconf &= ~PIPECONF_INTERLACE_MASK; | |
4798 | if (!IS_GEN2(dev) && | |
4799 | intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) | |
4800 | pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; | |
4801 | else | |
4802 | pipeconf |= PIPECONF_PROGRESSIVE; | |
4803 | ||
9c8e09b7 VS |
4804 | if (IS_VALLEYVIEW(dev)) { |
4805 | if (intel_crtc->config.limited_color_range) | |
4806 | pipeconf |= PIPECONF_COLOR_RANGE_SELECT; | |
4807 | else | |
4808 | pipeconf &= ~PIPECONF_COLOR_RANGE_SELECT; | |
4809 | } | |
4810 | ||
84b046f3 DV |
4811 | I915_WRITE(PIPECONF(intel_crtc->pipe), pipeconf); |
4812 | POSTING_READ(PIPECONF(intel_crtc->pipe)); | |
4813 | } | |
4814 | ||
f564048e | 4815 | static int i9xx_crtc_mode_set(struct drm_crtc *crtc, |
f564048e | 4816 | int x, int y, |
94352cf9 | 4817 | struct drm_framebuffer *fb) |
79e53945 JB |
4818 | { |
4819 | struct drm_device *dev = crtc->dev; | |
4820 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4821 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
b8cecdf5 DV |
4822 | struct drm_display_mode *adjusted_mode = |
4823 | &intel_crtc->config.adjusted_mode; | |
4824 | struct drm_display_mode *mode = &intel_crtc->config.requested_mode; | |
79e53945 | 4825 | int pipe = intel_crtc->pipe; |
80824003 | 4826 | int plane = intel_crtc->plane; |
c751ce4f | 4827 | int refclk, num_connectors = 0; |
652c393a | 4828 | intel_clock_t clock, reduced_clock; |
84b046f3 | 4829 | u32 dspcntr; |
a16af721 DV |
4830 | bool ok, has_reduced_clock = false; |
4831 | bool is_lvds = false; | |
5eddb70b | 4832 | struct intel_encoder *encoder; |
d4906093 | 4833 | const intel_limit_t *limit; |
5c3b82e2 | 4834 | int ret; |
79e53945 | 4835 | |
6c2b7c12 | 4836 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
5eddb70b | 4837 | switch (encoder->type) { |
79e53945 JB |
4838 | case INTEL_OUTPUT_LVDS: |
4839 | is_lvds = true; | |
4840 | break; | |
79e53945 | 4841 | } |
43565a06 | 4842 | |
c751ce4f | 4843 | num_connectors++; |
79e53945 JB |
4844 | } |
4845 | ||
c65d77d8 | 4846 | refclk = i9xx_get_refclk(crtc, num_connectors); |
79e53945 | 4847 | |
d4906093 ML |
4848 | /* |
4849 | * Returns a set of divisors for the desired target clock with the given | |
4850 | * refclk, or FALSE. The returned values represent the clock equation: | |
4851 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
4852 | */ | |
1b894b59 | 4853 | limit = intel_limit(crtc, refclk); |
cec2f356 SP |
4854 | ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL, |
4855 | &clock); | |
79e53945 JB |
4856 | if (!ok) { |
4857 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
5c3b82e2 | 4858 | return -EINVAL; |
79e53945 JB |
4859 | } |
4860 | ||
cda4b7d3 | 4861 | /* Ensure that the cursor is valid for the new mode before changing... */ |
6b383a7f | 4862 | intel_crtc_update_cursor(crtc, true); |
cda4b7d3 | 4863 | |
ddc9003c | 4864 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
cec2f356 SP |
4865 | /* |
4866 | * Ensure we match the reduced clock's P to the target clock. | |
4867 | * If the clocks don't match, we can't switch the display clock | |
4868 | * by using the FP0/FP1. In such case we will disable the LVDS | |
4869 | * downclock feature. | |
4870 | */ | |
ddc9003c | 4871 | has_reduced_clock = limit->find_pll(limit, crtc, |
5eddb70b CW |
4872 | dev_priv->lvds_downclock, |
4873 | refclk, | |
cec2f356 | 4874 | &clock, |
5eddb70b | 4875 | &reduced_clock); |
7026d4ac | 4876 | } |
f47709a9 DV |
4877 | /* Compat-code for transition, will disappear. */ |
4878 | if (!intel_crtc->config.clock_set) { | |
4879 | intel_crtc->config.dpll.n = clock.n; | |
4880 | intel_crtc->config.dpll.m1 = clock.m1; | |
4881 | intel_crtc->config.dpll.m2 = clock.m2; | |
4882 | intel_crtc->config.dpll.p1 = clock.p1; | |
4883 | intel_crtc->config.dpll.p2 = clock.p2; | |
4884 | } | |
7026d4ac | 4885 | |
eb1cbe48 | 4886 | if (IS_GEN2(dev)) |
f47709a9 | 4887 | i8xx_update_pll(intel_crtc, adjusted_mode, |
2a8f64ca VP |
4888 | has_reduced_clock ? &reduced_clock : NULL, |
4889 | num_connectors); | |
a0c4da24 | 4890 | else if (IS_VALLEYVIEW(dev)) |
f47709a9 | 4891 | vlv_update_pll(intel_crtc); |
79e53945 | 4892 | else |
f47709a9 | 4893 | i9xx_update_pll(intel_crtc, |
eb1cbe48 | 4894 | has_reduced_clock ? &reduced_clock : NULL, |
89b667f8 | 4895 | num_connectors); |
79e53945 | 4896 | |
79e53945 JB |
4897 | /* Set up the display plane register */ |
4898 | dspcntr = DISPPLANE_GAMMA_ENABLE; | |
4899 | ||
da6ecc5d JB |
4900 | if (!IS_VALLEYVIEW(dev)) { |
4901 | if (pipe == 0) | |
4902 | dspcntr &= ~DISPPLANE_SEL_PIPE_MASK; | |
4903 | else | |
4904 | dspcntr |= DISPPLANE_SEL_PIPE_B; | |
4905 | } | |
79e53945 | 4906 | |
b0e77b9c | 4907 | intel_set_pipe_timings(intel_crtc, mode, adjusted_mode); |
5eddb70b CW |
4908 | |
4909 | /* pipesrc and dspsize control the size that is scaled from, | |
4910 | * which should always be the user's requested size. | |
79e53945 | 4911 | */ |
929c77fb EA |
4912 | I915_WRITE(DSPSIZE(plane), |
4913 | ((mode->vdisplay - 1) << 16) | | |
4914 | (mode->hdisplay - 1)); | |
4915 | I915_WRITE(DSPPOS(plane), 0); | |
2c07245f | 4916 | |
84b046f3 DV |
4917 | i9xx_set_pipeconf(intel_crtc); |
4918 | ||
f564048e EA |
4919 | I915_WRITE(DSPCNTR(plane), dspcntr); |
4920 | POSTING_READ(DSPCNTR(plane)); | |
4921 | ||
94352cf9 | 4922 | ret = intel_pipe_set_base(crtc, x, y, fb); |
f564048e EA |
4923 | |
4924 | intel_update_watermarks(dev); | |
4925 | ||
f564048e EA |
4926 | return ret; |
4927 | } | |
4928 | ||
2fa2fe9a DV |
4929 | static void i9xx_get_pfit_config(struct intel_crtc *crtc, |
4930 | struct intel_crtc_config *pipe_config) | |
4931 | { | |
4932 | struct drm_device *dev = crtc->base.dev; | |
4933 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4934 | uint32_t tmp; | |
4935 | ||
4936 | tmp = I915_READ(PFIT_CONTROL); | |
4937 | ||
4938 | if (INTEL_INFO(dev)->gen < 4) { | |
4939 | if (crtc->pipe != PIPE_B) | |
4940 | return; | |
4941 | ||
4942 | /* gen2/3 store dither state in pfit control, needs to match */ | |
4943 | pipe_config->gmch_pfit.control = tmp & PANEL_8TO6_DITHER_ENABLE; | |
4944 | } else { | |
4945 | if ((tmp & PFIT_PIPE_MASK) != (crtc->pipe << PFIT_PIPE_SHIFT)) | |
4946 | return; | |
4947 | } | |
4948 | ||
4949 | if (!(tmp & PFIT_ENABLE)) | |
4950 | return; | |
4951 | ||
4952 | pipe_config->gmch_pfit.control = I915_READ(PFIT_CONTROL); | |
4953 | pipe_config->gmch_pfit.pgm_ratios = I915_READ(PFIT_PGM_RATIOS); | |
4954 | if (INTEL_INFO(dev)->gen < 5) | |
4955 | pipe_config->gmch_pfit.lvds_border_bits = | |
4956 | I915_READ(LVDS) & LVDS_BORDER_ENABLE; | |
4957 | } | |
4958 | ||
0e8ffe1b DV |
4959 | static bool i9xx_get_pipe_config(struct intel_crtc *crtc, |
4960 | struct intel_crtc_config *pipe_config) | |
4961 | { | |
4962 | struct drm_device *dev = crtc->base.dev; | |
4963 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4964 | uint32_t tmp; | |
4965 | ||
eccb140b DV |
4966 | pipe_config->cpu_transcoder = crtc->pipe; |
4967 | ||
0e8ffe1b DV |
4968 | tmp = I915_READ(PIPECONF(crtc->pipe)); |
4969 | if (!(tmp & PIPECONF_ENABLE)) | |
4970 | return false; | |
4971 | ||
1bd1bd80 DV |
4972 | intel_get_pipe_timings(crtc, pipe_config); |
4973 | ||
2fa2fe9a DV |
4974 | i9xx_get_pfit_config(crtc, pipe_config); |
4975 | ||
0e8ffe1b DV |
4976 | return true; |
4977 | } | |
4978 | ||
dde86e2d | 4979 | static void ironlake_init_pch_refclk(struct drm_device *dev) |
13d83a67 JB |
4980 | { |
4981 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4982 | struct drm_mode_config *mode_config = &dev->mode_config; | |
13d83a67 | 4983 | struct intel_encoder *encoder; |
74cfd7ac | 4984 | u32 val, final; |
13d83a67 | 4985 | bool has_lvds = false; |
199e5d79 | 4986 | bool has_cpu_edp = false; |
199e5d79 | 4987 | bool has_panel = false; |
99eb6a01 KP |
4988 | bool has_ck505 = false; |
4989 | bool can_ssc = false; | |
13d83a67 JB |
4990 | |
4991 | /* We need to take the global config into account */ | |
199e5d79 KP |
4992 | list_for_each_entry(encoder, &mode_config->encoder_list, |
4993 | base.head) { | |
4994 | switch (encoder->type) { | |
4995 | case INTEL_OUTPUT_LVDS: | |
4996 | has_panel = true; | |
4997 | has_lvds = true; | |
4998 | break; | |
4999 | case INTEL_OUTPUT_EDP: | |
5000 | has_panel = true; | |
2de6905f | 5001 | if (enc_to_dig_port(&encoder->base)->port == PORT_A) |
199e5d79 KP |
5002 | has_cpu_edp = true; |
5003 | break; | |
13d83a67 JB |
5004 | } |
5005 | } | |
5006 | ||
99eb6a01 | 5007 | if (HAS_PCH_IBX(dev)) { |
41aa3448 | 5008 | has_ck505 = dev_priv->vbt.display_clock_mode; |
99eb6a01 KP |
5009 | can_ssc = has_ck505; |
5010 | } else { | |
5011 | has_ck505 = false; | |
5012 | can_ssc = true; | |
5013 | } | |
5014 | ||
2de6905f ID |
5015 | DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n", |
5016 | has_panel, has_lvds, has_ck505); | |
13d83a67 JB |
5017 | |
5018 | /* Ironlake: try to setup display ref clock before DPLL | |
5019 | * enabling. This is only under driver's control after | |
5020 | * PCH B stepping, previous chipset stepping should be | |
5021 | * ignoring this setting. | |
5022 | */ | |
74cfd7ac CW |
5023 | val = I915_READ(PCH_DREF_CONTROL); |
5024 | ||
5025 | /* As we must carefully and slowly disable/enable each source in turn, | |
5026 | * compute the final state we want first and check if we need to | |
5027 | * make any changes at all. | |
5028 | */ | |
5029 | final = val; | |
5030 | final &= ~DREF_NONSPREAD_SOURCE_MASK; | |
5031 | if (has_ck505) | |
5032 | final |= DREF_NONSPREAD_CK505_ENABLE; | |
5033 | else | |
5034 | final |= DREF_NONSPREAD_SOURCE_ENABLE; | |
5035 | ||
5036 | final &= ~DREF_SSC_SOURCE_MASK; | |
5037 | final &= ~DREF_CPU_SOURCE_OUTPUT_MASK; | |
5038 | final &= ~DREF_SSC1_ENABLE; | |
5039 | ||
5040 | if (has_panel) { | |
5041 | final |= DREF_SSC_SOURCE_ENABLE; | |
5042 | ||
5043 | if (intel_panel_use_ssc(dev_priv) && can_ssc) | |
5044 | final |= DREF_SSC1_ENABLE; | |
5045 | ||
5046 | if (has_cpu_edp) { | |
5047 | if (intel_panel_use_ssc(dev_priv) && can_ssc) | |
5048 | final |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; | |
5049 | else | |
5050 | final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; | |
5051 | } else | |
5052 | final |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
5053 | } else { | |
5054 | final |= DREF_SSC_SOURCE_DISABLE; | |
5055 | final |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
5056 | } | |
5057 | ||
5058 | if (final == val) | |
5059 | return; | |
5060 | ||
13d83a67 | 5061 | /* Always enable nonspread source */ |
74cfd7ac | 5062 | val &= ~DREF_NONSPREAD_SOURCE_MASK; |
13d83a67 | 5063 | |
99eb6a01 | 5064 | if (has_ck505) |
74cfd7ac | 5065 | val |= DREF_NONSPREAD_CK505_ENABLE; |
99eb6a01 | 5066 | else |
74cfd7ac | 5067 | val |= DREF_NONSPREAD_SOURCE_ENABLE; |
13d83a67 | 5068 | |
199e5d79 | 5069 | if (has_panel) { |
74cfd7ac CW |
5070 | val &= ~DREF_SSC_SOURCE_MASK; |
5071 | val |= DREF_SSC_SOURCE_ENABLE; | |
13d83a67 | 5072 | |
199e5d79 | 5073 | /* SSC must be turned on before enabling the CPU output */ |
99eb6a01 | 5074 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 5075 | DRM_DEBUG_KMS("Using SSC on panel\n"); |
74cfd7ac | 5076 | val |= DREF_SSC1_ENABLE; |
e77166b5 | 5077 | } else |
74cfd7ac | 5078 | val &= ~DREF_SSC1_ENABLE; |
199e5d79 KP |
5079 | |
5080 | /* Get SSC going before enabling the outputs */ | |
74cfd7ac | 5081 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
5082 | POSTING_READ(PCH_DREF_CONTROL); |
5083 | udelay(200); | |
5084 | ||
74cfd7ac | 5085 | val &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
13d83a67 JB |
5086 | |
5087 | /* Enable CPU source on CPU attached eDP */ | |
199e5d79 | 5088 | if (has_cpu_edp) { |
99eb6a01 | 5089 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 5090 | DRM_DEBUG_KMS("Using SSC on eDP\n"); |
74cfd7ac | 5091 | val |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; |
199e5d79 | 5092 | } |
13d83a67 | 5093 | else |
74cfd7ac | 5094 | val |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; |
199e5d79 | 5095 | } else |
74cfd7ac | 5096 | val |= DREF_CPU_SOURCE_OUTPUT_DISABLE; |
199e5d79 | 5097 | |
74cfd7ac | 5098 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
5099 | POSTING_READ(PCH_DREF_CONTROL); |
5100 | udelay(200); | |
5101 | } else { | |
5102 | DRM_DEBUG_KMS("Disabling SSC entirely\n"); | |
5103 | ||
74cfd7ac | 5104 | val &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
199e5d79 KP |
5105 | |
5106 | /* Turn off CPU output */ | |
74cfd7ac | 5107 | val |= DREF_CPU_SOURCE_OUTPUT_DISABLE; |
199e5d79 | 5108 | |
74cfd7ac | 5109 | I915_WRITE(PCH_DREF_CONTROL, val); |
199e5d79 KP |
5110 | POSTING_READ(PCH_DREF_CONTROL); |
5111 | udelay(200); | |
5112 | ||
5113 | /* Turn off the SSC source */ | |
74cfd7ac CW |
5114 | val &= ~DREF_SSC_SOURCE_MASK; |
5115 | val |= DREF_SSC_SOURCE_DISABLE; | |
199e5d79 KP |
5116 | |
5117 | /* Turn off SSC1 */ | |
74cfd7ac | 5118 | val &= ~DREF_SSC1_ENABLE; |
199e5d79 | 5119 | |
74cfd7ac | 5120 | I915_WRITE(PCH_DREF_CONTROL, val); |
13d83a67 JB |
5121 | POSTING_READ(PCH_DREF_CONTROL); |
5122 | udelay(200); | |
5123 | } | |
74cfd7ac CW |
5124 | |
5125 | BUG_ON(val != final); | |
13d83a67 JB |
5126 | } |
5127 | ||
dde86e2d PZ |
5128 | /* Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O. */ |
5129 | static void lpt_init_pch_refclk(struct drm_device *dev) | |
5130 | { | |
5131 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5132 | struct drm_mode_config *mode_config = &dev->mode_config; | |
5133 | struct intel_encoder *encoder; | |
5134 | bool has_vga = false; | |
5135 | bool is_sdv = false; | |
5136 | u32 tmp; | |
5137 | ||
5138 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) { | |
5139 | switch (encoder->type) { | |
5140 | case INTEL_OUTPUT_ANALOG: | |
5141 | has_vga = true; | |
5142 | break; | |
5143 | } | |
5144 | } | |
5145 | ||
5146 | if (!has_vga) | |
5147 | return; | |
5148 | ||
c00db246 DV |
5149 | mutex_lock(&dev_priv->dpio_lock); |
5150 | ||
dde86e2d PZ |
5151 | /* XXX: Rip out SDV support once Haswell ships for real. */ |
5152 | if (IS_HASWELL(dev) && (dev->pci_device & 0xFF00) == 0x0C00) | |
5153 | is_sdv = true; | |
5154 | ||
5155 | tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK); | |
5156 | tmp &= ~SBI_SSCCTL_DISABLE; | |
5157 | tmp |= SBI_SSCCTL_PATHALT; | |
5158 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
5159 | ||
5160 | udelay(24); | |
5161 | ||
5162 | tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK); | |
5163 | tmp &= ~SBI_SSCCTL_PATHALT; | |
5164 | intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK); | |
5165 | ||
5166 | if (!is_sdv) { | |
5167 | tmp = I915_READ(SOUTH_CHICKEN2); | |
5168 | tmp |= FDI_MPHY_IOSFSB_RESET_CTL; | |
5169 | I915_WRITE(SOUTH_CHICKEN2, tmp); | |
5170 | ||
5171 | if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2) & | |
5172 | FDI_MPHY_IOSFSB_RESET_STATUS, 100)) | |
5173 | DRM_ERROR("FDI mPHY reset assert timeout\n"); | |
5174 | ||
5175 | tmp = I915_READ(SOUTH_CHICKEN2); | |
5176 | tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL; | |
5177 | I915_WRITE(SOUTH_CHICKEN2, tmp); | |
5178 | ||
5179 | if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2) & | |
5180 | FDI_MPHY_IOSFSB_RESET_STATUS) == 0, | |
5181 | 100)) | |
5182 | DRM_ERROR("FDI mPHY reset de-assert timeout\n"); | |
5183 | } | |
5184 | ||
5185 | tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY); | |
5186 | tmp &= ~(0xFF << 24); | |
5187 | tmp |= (0x12 << 24); | |
5188 | intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY); | |
5189 | ||
dde86e2d PZ |
5190 | if (is_sdv) { |
5191 | tmp = intel_sbi_read(dev_priv, 0x800C, SBI_MPHY); | |
5192 | tmp |= 0x7FFF; | |
5193 | intel_sbi_write(dev_priv, 0x800C, tmp, SBI_MPHY); | |
5194 | } | |
5195 | ||
5196 | tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY); | |
5197 | tmp |= (1 << 11); | |
5198 | intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY); | |
5199 | ||
5200 | tmp = intel_sbi_read(dev_priv, 0x2108, SBI_MPHY); | |
5201 | tmp |= (1 << 11); | |
5202 | intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY); | |
5203 | ||
5204 | if (is_sdv) { | |
5205 | tmp = intel_sbi_read(dev_priv, 0x2038, SBI_MPHY); | |
5206 | tmp |= (0x3F << 24) | (0xF << 20) | (0xF << 16); | |
5207 | intel_sbi_write(dev_priv, 0x2038, tmp, SBI_MPHY); | |
5208 | ||
5209 | tmp = intel_sbi_read(dev_priv, 0x2138, SBI_MPHY); | |
5210 | tmp |= (0x3F << 24) | (0xF << 20) | (0xF << 16); | |
5211 | intel_sbi_write(dev_priv, 0x2138, tmp, SBI_MPHY); | |
5212 | ||
5213 | tmp = intel_sbi_read(dev_priv, 0x203C, SBI_MPHY); | |
5214 | tmp |= (0x3F << 8); | |
5215 | intel_sbi_write(dev_priv, 0x203C, tmp, SBI_MPHY); | |
5216 | ||
5217 | tmp = intel_sbi_read(dev_priv, 0x213C, SBI_MPHY); | |
5218 | tmp |= (0x3F << 8); | |
5219 | intel_sbi_write(dev_priv, 0x213C, tmp, SBI_MPHY); | |
5220 | } | |
5221 | ||
5222 | tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY); | |
5223 | tmp |= (1 << 24) | (1 << 21) | (1 << 18); | |
5224 | intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY); | |
5225 | ||
5226 | tmp = intel_sbi_read(dev_priv, 0x216C, SBI_MPHY); | |
5227 | tmp |= (1 << 24) | (1 << 21) | (1 << 18); | |
5228 | intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY); | |
5229 | ||
5230 | if (!is_sdv) { | |
5231 | tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY); | |
5232 | tmp &= ~(7 << 13); | |
5233 | tmp |= (5 << 13); | |
5234 | intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY); | |
5235 | ||
5236 | tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY); | |
5237 | tmp &= ~(7 << 13); | |
5238 | tmp |= (5 << 13); | |
5239 | intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY); | |
5240 | } | |
5241 | ||
5242 | tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY); | |
5243 | tmp &= ~0xFF; | |
5244 | tmp |= 0x1C; | |
5245 | intel_sbi_write(dev_priv, 0x208C, tmp, SBI_MPHY); | |
5246 | ||
5247 | tmp = intel_sbi_read(dev_priv, 0x218C, SBI_MPHY); | |
5248 | tmp &= ~0xFF; | |
5249 | tmp |= 0x1C; | |
5250 | intel_sbi_write(dev_priv, 0x218C, tmp, SBI_MPHY); | |
5251 | ||
5252 | tmp = intel_sbi_read(dev_priv, 0x2098, SBI_MPHY); | |
5253 | tmp &= ~(0xFF << 16); | |
5254 | tmp |= (0x1C << 16); | |
5255 | intel_sbi_write(dev_priv, 0x2098, tmp, SBI_MPHY); | |
5256 | ||
5257 | tmp = intel_sbi_read(dev_priv, 0x2198, SBI_MPHY); | |
5258 | tmp &= ~(0xFF << 16); | |
5259 | tmp |= (0x1C << 16); | |
5260 | intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY); | |
5261 | ||
5262 | if (!is_sdv) { | |
5263 | tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY); | |
5264 | tmp |= (1 << 27); | |
5265 | intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY); | |
5266 | ||
5267 | tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY); | |
5268 | tmp |= (1 << 27); | |
5269 | intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY); | |
5270 | ||
5271 | tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY); | |
5272 | tmp &= ~(0xF << 28); | |
5273 | tmp |= (4 << 28); | |
5274 | intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY); | |
5275 | ||
5276 | tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY); | |
5277 | tmp &= ~(0xF << 28); | |
5278 | tmp |= (4 << 28); | |
5279 | intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY); | |
5280 | } | |
5281 | ||
5282 | /* ULT uses SBI_GEN0, but ULT doesn't have VGA, so we don't care. */ | |
5283 | tmp = intel_sbi_read(dev_priv, SBI_DBUFF0, SBI_ICLK); | |
5284 | tmp |= SBI_DBUFF0_ENABLE; | |
5285 | intel_sbi_write(dev_priv, SBI_DBUFF0, tmp, SBI_ICLK); | |
c00db246 DV |
5286 | |
5287 | mutex_unlock(&dev_priv->dpio_lock); | |
dde86e2d PZ |
5288 | } |
5289 | ||
5290 | /* | |
5291 | * Initialize reference clocks when the driver loads | |
5292 | */ | |
5293 | void intel_init_pch_refclk(struct drm_device *dev) | |
5294 | { | |
5295 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) | |
5296 | ironlake_init_pch_refclk(dev); | |
5297 | else if (HAS_PCH_LPT(dev)) | |
5298 | lpt_init_pch_refclk(dev); | |
5299 | } | |
5300 | ||
d9d444cb JB |
5301 | static int ironlake_get_refclk(struct drm_crtc *crtc) |
5302 | { | |
5303 | struct drm_device *dev = crtc->dev; | |
5304 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5305 | struct intel_encoder *encoder; | |
d9d444cb JB |
5306 | int num_connectors = 0; |
5307 | bool is_lvds = false; | |
5308 | ||
6c2b7c12 | 5309 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
d9d444cb JB |
5310 | switch (encoder->type) { |
5311 | case INTEL_OUTPUT_LVDS: | |
5312 | is_lvds = true; | |
5313 | break; | |
d9d444cb JB |
5314 | } |
5315 | num_connectors++; | |
5316 | } | |
5317 | ||
5318 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) { | |
5319 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", | |
41aa3448 RV |
5320 | dev_priv->vbt.lvds_ssc_freq); |
5321 | return dev_priv->vbt.lvds_ssc_freq * 1000; | |
d9d444cb JB |
5322 | } |
5323 | ||
5324 | return 120000; | |
5325 | } | |
5326 | ||
6ff93609 | 5327 | static void ironlake_set_pipeconf(struct drm_crtc *crtc) |
79e53945 | 5328 | { |
c8203565 | 5329 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
79e53945 JB |
5330 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5331 | int pipe = intel_crtc->pipe; | |
c8203565 PZ |
5332 | uint32_t val; |
5333 | ||
5334 | val = I915_READ(PIPECONF(pipe)); | |
5335 | ||
dfd07d72 | 5336 | val &= ~PIPECONF_BPC_MASK; |
965e0c48 | 5337 | switch (intel_crtc->config.pipe_bpp) { |
c8203565 | 5338 | case 18: |
dfd07d72 | 5339 | val |= PIPECONF_6BPC; |
c8203565 PZ |
5340 | break; |
5341 | case 24: | |
dfd07d72 | 5342 | val |= PIPECONF_8BPC; |
c8203565 PZ |
5343 | break; |
5344 | case 30: | |
dfd07d72 | 5345 | val |= PIPECONF_10BPC; |
c8203565 PZ |
5346 | break; |
5347 | case 36: | |
dfd07d72 | 5348 | val |= PIPECONF_12BPC; |
c8203565 PZ |
5349 | break; |
5350 | default: | |
cc769b62 PZ |
5351 | /* Case prevented by intel_choose_pipe_bpp_dither. */ |
5352 | BUG(); | |
c8203565 PZ |
5353 | } |
5354 | ||
5355 | val &= ~(PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK); | |
d8b32247 | 5356 | if (intel_crtc->config.dither) |
c8203565 PZ |
5357 | val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP); |
5358 | ||
5359 | val &= ~PIPECONF_INTERLACE_MASK; | |
6ff93609 | 5360 | if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) |
c8203565 PZ |
5361 | val |= PIPECONF_INTERLACED_ILK; |
5362 | else | |
5363 | val |= PIPECONF_PROGRESSIVE; | |
5364 | ||
50f3b016 | 5365 | if (intel_crtc->config.limited_color_range) |
3685a8f3 VS |
5366 | val |= PIPECONF_COLOR_RANGE_SELECT; |
5367 | else | |
5368 | val &= ~PIPECONF_COLOR_RANGE_SELECT; | |
5369 | ||
c8203565 PZ |
5370 | I915_WRITE(PIPECONF(pipe), val); |
5371 | POSTING_READ(PIPECONF(pipe)); | |
5372 | } | |
5373 | ||
86d3efce VS |
5374 | /* |
5375 | * Set up the pipe CSC unit. | |
5376 | * | |
5377 | * Currently only full range RGB to limited range RGB conversion | |
5378 | * is supported, but eventually this should handle various | |
5379 | * RGB<->YCbCr scenarios as well. | |
5380 | */ | |
50f3b016 | 5381 | static void intel_set_pipe_csc(struct drm_crtc *crtc) |
86d3efce VS |
5382 | { |
5383 | struct drm_device *dev = crtc->dev; | |
5384 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5385 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5386 | int pipe = intel_crtc->pipe; | |
5387 | uint16_t coeff = 0x7800; /* 1.0 */ | |
5388 | ||
5389 | /* | |
5390 | * TODO: Check what kind of values actually come out of the pipe | |
5391 | * with these coeff/postoff values and adjust to get the best | |
5392 | * accuracy. Perhaps we even need to take the bpc value into | |
5393 | * consideration. | |
5394 | */ | |
5395 | ||
50f3b016 | 5396 | if (intel_crtc->config.limited_color_range) |
86d3efce VS |
5397 | coeff = ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */ |
5398 | ||
5399 | /* | |
5400 | * GY/GU and RY/RU should be the other way around according | |
5401 | * to BSpec, but reality doesn't agree. Just set them up in | |
5402 | * a way that results in the correct picture. | |
5403 | */ | |
5404 | I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe), coeff << 16); | |
5405 | I915_WRITE(PIPE_CSC_COEFF_BY(pipe), 0); | |
5406 | ||
5407 | I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe), coeff); | |
5408 | I915_WRITE(PIPE_CSC_COEFF_BU(pipe), 0); | |
5409 | ||
5410 | I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe), 0); | |
5411 | I915_WRITE(PIPE_CSC_COEFF_BV(pipe), coeff << 16); | |
5412 | ||
5413 | I915_WRITE(PIPE_CSC_PREOFF_HI(pipe), 0); | |
5414 | I915_WRITE(PIPE_CSC_PREOFF_ME(pipe), 0); | |
5415 | I915_WRITE(PIPE_CSC_PREOFF_LO(pipe), 0); | |
5416 | ||
5417 | if (INTEL_INFO(dev)->gen > 6) { | |
5418 | uint16_t postoff = 0; | |
5419 | ||
50f3b016 | 5420 | if (intel_crtc->config.limited_color_range) |
86d3efce VS |
5421 | postoff = (16 * (1 << 13) / 255) & 0x1fff; |
5422 | ||
5423 | I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), postoff); | |
5424 | I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff); | |
5425 | I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), postoff); | |
5426 | ||
5427 | I915_WRITE(PIPE_CSC_MODE(pipe), 0); | |
5428 | } else { | |
5429 | uint32_t mode = CSC_MODE_YUV_TO_RGB; | |
5430 | ||
50f3b016 | 5431 | if (intel_crtc->config.limited_color_range) |
86d3efce VS |
5432 | mode |= CSC_BLACK_SCREEN_OFFSET; |
5433 | ||
5434 | I915_WRITE(PIPE_CSC_MODE(pipe), mode); | |
5435 | } | |
5436 | } | |
5437 | ||
6ff93609 | 5438 | static void haswell_set_pipeconf(struct drm_crtc *crtc) |
ee2b0b38 PZ |
5439 | { |
5440 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; | |
5441 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3b117c8f | 5442 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
ee2b0b38 PZ |
5443 | uint32_t val; |
5444 | ||
702e7a56 | 5445 | val = I915_READ(PIPECONF(cpu_transcoder)); |
ee2b0b38 PZ |
5446 | |
5447 | val &= ~(PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK); | |
d8b32247 | 5448 | if (intel_crtc->config.dither) |
ee2b0b38 PZ |
5449 | val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP); |
5450 | ||
5451 | val &= ~PIPECONF_INTERLACE_MASK_HSW; | |
6ff93609 | 5452 | if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) |
ee2b0b38 PZ |
5453 | val |= PIPECONF_INTERLACED_ILK; |
5454 | else | |
5455 | val |= PIPECONF_PROGRESSIVE; | |
5456 | ||
702e7a56 PZ |
5457 | I915_WRITE(PIPECONF(cpu_transcoder), val); |
5458 | POSTING_READ(PIPECONF(cpu_transcoder)); | |
ee2b0b38 PZ |
5459 | } |
5460 | ||
6591c6e4 PZ |
5461 | static bool ironlake_compute_clocks(struct drm_crtc *crtc, |
5462 | struct drm_display_mode *adjusted_mode, | |
5463 | intel_clock_t *clock, | |
5464 | bool *has_reduced_clock, | |
5465 | intel_clock_t *reduced_clock) | |
5466 | { | |
5467 | struct drm_device *dev = crtc->dev; | |
5468 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5469 | struct intel_encoder *intel_encoder; | |
5470 | int refclk; | |
d4906093 | 5471 | const intel_limit_t *limit; |
a16af721 | 5472 | bool ret, is_lvds = false; |
79e53945 | 5473 | |
6591c6e4 PZ |
5474 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
5475 | switch (intel_encoder->type) { | |
79e53945 JB |
5476 | case INTEL_OUTPUT_LVDS: |
5477 | is_lvds = true; | |
5478 | break; | |
79e53945 JB |
5479 | } |
5480 | } | |
5481 | ||
d9d444cb | 5482 | refclk = ironlake_get_refclk(crtc); |
79e53945 | 5483 | |
d4906093 ML |
5484 | /* |
5485 | * Returns a set of divisors for the desired target clock with the given | |
5486 | * refclk, or FALSE. The returned values represent the clock equation: | |
5487 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
5488 | */ | |
1b894b59 | 5489 | limit = intel_limit(crtc, refclk); |
6591c6e4 PZ |
5490 | ret = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL, |
5491 | clock); | |
5492 | if (!ret) | |
5493 | return false; | |
cda4b7d3 | 5494 | |
ddc9003c | 5495 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
cec2f356 SP |
5496 | /* |
5497 | * Ensure we match the reduced clock's P to the target clock. | |
5498 | * If the clocks don't match, we can't switch the display clock | |
5499 | * by using the FP0/FP1. In such case we will disable the LVDS | |
5500 | * downclock feature. | |
5501 | */ | |
6591c6e4 PZ |
5502 | *has_reduced_clock = limit->find_pll(limit, crtc, |
5503 | dev_priv->lvds_downclock, | |
5504 | refclk, | |
5505 | clock, | |
5506 | reduced_clock); | |
652c393a | 5507 | } |
61e9653f | 5508 | |
6591c6e4 PZ |
5509 | return true; |
5510 | } | |
5511 | ||
01a415fd DV |
5512 | static void cpt_enable_fdi_bc_bifurcation(struct drm_device *dev) |
5513 | { | |
5514 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5515 | uint32_t temp; | |
5516 | ||
5517 | temp = I915_READ(SOUTH_CHICKEN1); | |
5518 | if (temp & FDI_BC_BIFURCATION_SELECT) | |
5519 | return; | |
5520 | ||
5521 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE); | |
5522 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE); | |
5523 | ||
5524 | temp |= FDI_BC_BIFURCATION_SELECT; | |
5525 | DRM_DEBUG_KMS("enabling fdi C rx\n"); | |
5526 | I915_WRITE(SOUTH_CHICKEN1, temp); | |
5527 | POSTING_READ(SOUTH_CHICKEN1); | |
5528 | } | |
5529 | ||
ebfd86fd DV |
5530 | static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc) |
5531 | { | |
5532 | struct drm_device *dev = intel_crtc->base.dev; | |
5533 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5534 | ||
5535 | switch (intel_crtc->pipe) { | |
5536 | case PIPE_A: | |
5537 | break; | |
5538 | case PIPE_B: | |
5539 | if (intel_crtc->config.fdi_lanes > 2) | |
5540 | WARN_ON(I915_READ(SOUTH_CHICKEN1) & FDI_BC_BIFURCATION_SELECT); | |
5541 | else | |
5542 | cpt_enable_fdi_bc_bifurcation(dev); | |
5543 | ||
5544 | break; | |
5545 | case PIPE_C: | |
01a415fd DV |
5546 | cpt_enable_fdi_bc_bifurcation(dev); |
5547 | ||
ebfd86fd | 5548 | break; |
01a415fd DV |
5549 | default: |
5550 | BUG(); | |
5551 | } | |
5552 | } | |
5553 | ||
d4b1931c PZ |
5554 | int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp) |
5555 | { | |
5556 | /* | |
5557 | * Account for spread spectrum to avoid | |
5558 | * oversubscribing the link. Max center spread | |
5559 | * is 2.5%; use 5% for safety's sake. | |
5560 | */ | |
5561 | u32 bps = target_clock * bpp * 21 / 20; | |
5562 | return bps / (link_bw * 8) + 1; | |
5563 | } | |
5564 | ||
7429e9d4 DV |
5565 | static bool ironlake_needs_fb_cb_tune(struct dpll *dpll, int factor) |
5566 | { | |
5567 | return i9xx_dpll_compute_m(dpll) < factor * dpll->n; | |
5568 | } | |
5569 | ||
de13a2e3 | 5570 | static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc, |
7429e9d4 | 5571 | u32 *fp, |
9a7c7890 | 5572 | intel_clock_t *reduced_clock, u32 *fp2) |
79e53945 | 5573 | { |
de13a2e3 | 5574 | struct drm_crtc *crtc = &intel_crtc->base; |
79e53945 JB |
5575 | struct drm_device *dev = crtc->dev; |
5576 | struct drm_i915_private *dev_priv = dev->dev_private; | |
de13a2e3 PZ |
5577 | struct intel_encoder *intel_encoder; |
5578 | uint32_t dpll; | |
6cc5f341 | 5579 | int factor, num_connectors = 0; |
09ede541 | 5580 | bool is_lvds = false, is_sdvo = false; |
79e53945 | 5581 | |
de13a2e3 PZ |
5582 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
5583 | switch (intel_encoder->type) { | |
79e53945 JB |
5584 | case INTEL_OUTPUT_LVDS: |
5585 | is_lvds = true; | |
5586 | break; | |
5587 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 5588 | case INTEL_OUTPUT_HDMI: |
79e53945 JB |
5589 | is_sdvo = true; |
5590 | break; | |
79e53945 | 5591 | } |
43565a06 | 5592 | |
c751ce4f | 5593 | num_connectors++; |
79e53945 | 5594 | } |
79e53945 | 5595 | |
c1858123 | 5596 | /* Enable autotuning of the PLL clock (if permissible) */ |
8febb297 EA |
5597 | factor = 21; |
5598 | if (is_lvds) { | |
5599 | if ((intel_panel_use_ssc(dev_priv) && | |
41aa3448 | 5600 | dev_priv->vbt.lvds_ssc_freq == 100) || |
f0b44056 | 5601 | (HAS_PCH_IBX(dev) && intel_is_dual_link_lvds(dev))) |
8febb297 | 5602 | factor = 25; |
09ede541 | 5603 | } else if (intel_crtc->config.sdvo_tv_clock) |
8febb297 | 5604 | factor = 20; |
c1858123 | 5605 | |
7429e9d4 | 5606 | if (ironlake_needs_fb_cb_tune(&intel_crtc->config.dpll, factor)) |
7d0ac5b7 | 5607 | *fp |= FP_CB_TUNE; |
2c07245f | 5608 | |
9a7c7890 DV |
5609 | if (fp2 && (reduced_clock->m < factor * reduced_clock->n)) |
5610 | *fp2 |= FP_CB_TUNE; | |
5611 | ||
5eddb70b | 5612 | dpll = 0; |
2c07245f | 5613 | |
a07d6787 EA |
5614 | if (is_lvds) |
5615 | dpll |= DPLLB_MODE_LVDS; | |
5616 | else | |
5617 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
198a037f DV |
5618 | |
5619 | if (intel_crtc->config.pixel_multiplier > 1) { | |
5620 | dpll |= (intel_crtc->config.pixel_multiplier - 1) | |
5621 | << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; | |
a07d6787 | 5622 | } |
198a037f DV |
5623 | |
5624 | if (is_sdvo) | |
5625 | dpll |= DPLL_DVO_HIGH_SPEED; | |
9566e9af | 5626 | if (intel_crtc->config.has_dp_encoder) |
a07d6787 | 5627 | dpll |= DPLL_DVO_HIGH_SPEED; |
79e53945 | 5628 | |
a07d6787 | 5629 | /* compute bitmask from p1 value */ |
7429e9d4 | 5630 | dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
a07d6787 | 5631 | /* also FPA1 */ |
7429e9d4 | 5632 | dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; |
a07d6787 | 5633 | |
7429e9d4 | 5634 | switch (intel_crtc->config.dpll.p2) { |
a07d6787 EA |
5635 | case 5: |
5636 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
5637 | break; | |
5638 | case 7: | |
5639 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
5640 | break; | |
5641 | case 10: | |
5642 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
5643 | break; | |
5644 | case 14: | |
5645 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
5646 | break; | |
79e53945 JB |
5647 | } |
5648 | ||
b4c09f3b | 5649 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
43565a06 | 5650 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
79e53945 JB |
5651 | else |
5652 | dpll |= PLL_REF_INPUT_DREFCLK; | |
5653 | ||
de13a2e3 PZ |
5654 | return dpll; |
5655 | } | |
5656 | ||
5657 | static int ironlake_crtc_mode_set(struct drm_crtc *crtc, | |
de13a2e3 PZ |
5658 | int x, int y, |
5659 | struct drm_framebuffer *fb) | |
5660 | { | |
5661 | struct drm_device *dev = crtc->dev; | |
5662 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5663 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
b8cecdf5 DV |
5664 | struct drm_display_mode *adjusted_mode = |
5665 | &intel_crtc->config.adjusted_mode; | |
5666 | struct drm_display_mode *mode = &intel_crtc->config.requested_mode; | |
de13a2e3 PZ |
5667 | int pipe = intel_crtc->pipe; |
5668 | int plane = intel_crtc->plane; | |
5669 | int num_connectors = 0; | |
5670 | intel_clock_t clock, reduced_clock; | |
cbbab5bd | 5671 | u32 dpll = 0, fp = 0, fp2 = 0; |
e2f12b07 | 5672 | bool ok, has_reduced_clock = false; |
8b47047b | 5673 | bool is_lvds = false; |
de13a2e3 | 5674 | struct intel_encoder *encoder; |
de13a2e3 | 5675 | int ret; |
de13a2e3 PZ |
5676 | |
5677 | for_each_encoder_on_crtc(dev, crtc, encoder) { | |
5678 | switch (encoder->type) { | |
5679 | case INTEL_OUTPUT_LVDS: | |
5680 | is_lvds = true; | |
5681 | break; | |
de13a2e3 PZ |
5682 | } |
5683 | ||
5684 | num_connectors++; | |
a07d6787 | 5685 | } |
79e53945 | 5686 | |
5dc5298b PZ |
5687 | WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)), |
5688 | "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev)); | |
a07d6787 | 5689 | |
de13a2e3 PZ |
5690 | ok = ironlake_compute_clocks(crtc, adjusted_mode, &clock, |
5691 | &has_reduced_clock, &reduced_clock); | |
5692 | if (!ok) { | |
5693 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
5694 | return -EINVAL; | |
79e53945 | 5695 | } |
f47709a9 DV |
5696 | /* Compat-code for transition, will disappear. */ |
5697 | if (!intel_crtc->config.clock_set) { | |
5698 | intel_crtc->config.dpll.n = clock.n; | |
5699 | intel_crtc->config.dpll.m1 = clock.m1; | |
5700 | intel_crtc->config.dpll.m2 = clock.m2; | |
5701 | intel_crtc->config.dpll.p1 = clock.p1; | |
5702 | intel_crtc->config.dpll.p2 = clock.p2; | |
5703 | } | |
79e53945 | 5704 | |
de13a2e3 PZ |
5705 | /* Ensure that the cursor is valid for the new mode before changing... */ |
5706 | intel_crtc_update_cursor(crtc, true); | |
5707 | ||
5dc5298b | 5708 | /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */ |
8b47047b | 5709 | if (intel_crtc->config.has_pch_encoder) { |
ee7b9f93 | 5710 | struct intel_pch_pll *pll; |
4b645f14 | 5711 | |
7429e9d4 | 5712 | fp = i9xx_dpll_compute_fp(&intel_crtc->config.dpll); |
cbbab5bd | 5713 | if (has_reduced_clock) |
7429e9d4 | 5714 | fp2 = i9xx_dpll_compute_fp(&reduced_clock); |
cbbab5bd | 5715 | |
7429e9d4 | 5716 | dpll = ironlake_compute_dpll(intel_crtc, |
cbbab5bd DV |
5717 | &fp, &reduced_clock, |
5718 | has_reduced_clock ? &fp2 : NULL); | |
5719 | ||
ee7b9f93 JB |
5720 | pll = intel_get_pch_pll(intel_crtc, dpll, fp); |
5721 | if (pll == NULL) { | |
84f44ce7 VS |
5722 | DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n", |
5723 | pipe_name(pipe)); | |
4b645f14 JB |
5724 | return -EINVAL; |
5725 | } | |
ee7b9f93 JB |
5726 | } else |
5727 | intel_put_pch_pll(intel_crtc); | |
79e53945 | 5728 | |
03afc4a2 DV |
5729 | if (intel_crtc->config.has_dp_encoder) |
5730 | intel_dp_set_m_n(intel_crtc); | |
79e53945 | 5731 | |
dafd226c DV |
5732 | for_each_encoder_on_crtc(dev, crtc, encoder) |
5733 | if (encoder->pre_pll_enable) | |
5734 | encoder->pre_pll_enable(encoder); | |
79e53945 | 5735 | |
ee7b9f93 JB |
5736 | if (intel_crtc->pch_pll) { |
5737 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); | |
5eddb70b | 5738 | |
32f9d658 | 5739 | /* Wait for the clocks to stabilize. */ |
ee7b9f93 | 5740 | POSTING_READ(intel_crtc->pch_pll->pll_reg); |
32f9d658 ZW |
5741 | udelay(150); |
5742 | ||
8febb297 EA |
5743 | /* The pixel multiplier can only be updated once the |
5744 | * DPLL is enabled and the clocks are stable. | |
5745 | * | |
5746 | * So write it again. | |
5747 | */ | |
ee7b9f93 | 5748 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); |
79e53945 | 5749 | } |
79e53945 | 5750 | |
5eddb70b | 5751 | intel_crtc->lowfreq_avail = false; |
ee7b9f93 | 5752 | if (intel_crtc->pch_pll) { |
4b645f14 | 5753 | if (is_lvds && has_reduced_clock && i915_powersave) { |
ee7b9f93 | 5754 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp2); |
4b645f14 | 5755 | intel_crtc->lowfreq_avail = true; |
4b645f14 | 5756 | } else { |
ee7b9f93 | 5757 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp); |
652c393a JB |
5758 | } |
5759 | } | |
5760 | ||
b0e77b9c | 5761 | intel_set_pipe_timings(intel_crtc, mode, adjusted_mode); |
5eddb70b | 5762 | |
ca3a0ff8 | 5763 | if (intel_crtc->config.has_pch_encoder) { |
ca3a0ff8 DV |
5764 | intel_cpu_transcoder_set_m_n(intel_crtc, |
5765 | &intel_crtc->config.fdi_m_n); | |
5766 | } | |
2c07245f | 5767 | |
ebfd86fd DV |
5768 | if (IS_IVYBRIDGE(dev)) |
5769 | ivybridge_update_fdi_bc_bifurcation(intel_crtc); | |
2c07245f | 5770 | |
6ff93609 | 5771 | ironlake_set_pipeconf(crtc); |
79e53945 | 5772 | |
a1f9e77e PZ |
5773 | /* Set up the display plane register */ |
5774 | I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE); | |
b24e7179 | 5775 | POSTING_READ(DSPCNTR(plane)); |
79e53945 | 5776 | |
94352cf9 | 5777 | ret = intel_pipe_set_base(crtc, x, y, fb); |
7662c8bd SL |
5778 | |
5779 | intel_update_watermarks(dev); | |
5780 | ||
1857e1da | 5781 | return ret; |
79e53945 JB |
5782 | } |
5783 | ||
72419203 DV |
5784 | static void ironlake_get_fdi_m_n_config(struct intel_crtc *crtc, |
5785 | struct intel_crtc_config *pipe_config) | |
5786 | { | |
5787 | struct drm_device *dev = crtc->base.dev; | |
5788 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5789 | enum transcoder transcoder = pipe_config->cpu_transcoder; | |
5790 | ||
5791 | pipe_config->fdi_m_n.link_m = I915_READ(PIPE_LINK_M1(transcoder)); | |
5792 | pipe_config->fdi_m_n.link_n = I915_READ(PIPE_LINK_N1(transcoder)); | |
5793 | pipe_config->fdi_m_n.gmch_m = I915_READ(PIPE_DATA_M1(transcoder)) | |
5794 | & ~TU_SIZE_MASK; | |
5795 | pipe_config->fdi_m_n.gmch_n = I915_READ(PIPE_DATA_N1(transcoder)); | |
5796 | pipe_config->fdi_m_n.tu = ((I915_READ(PIPE_DATA_M1(transcoder)) | |
5797 | & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1; | |
5798 | } | |
5799 | ||
2fa2fe9a DV |
5800 | static void ironlake_get_pfit_config(struct intel_crtc *crtc, |
5801 | struct intel_crtc_config *pipe_config) | |
5802 | { | |
5803 | struct drm_device *dev = crtc->base.dev; | |
5804 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5805 | uint32_t tmp; | |
5806 | ||
5807 | tmp = I915_READ(PF_CTL(crtc->pipe)); | |
5808 | ||
5809 | if (tmp & PF_ENABLE) { | |
5810 | pipe_config->pch_pfit.pos = I915_READ(PF_WIN_POS(crtc->pipe)); | |
5811 | pipe_config->pch_pfit.size = I915_READ(PF_WIN_SZ(crtc->pipe)); | |
5812 | } | |
5813 | } | |
5814 | ||
0e8ffe1b DV |
5815 | static bool ironlake_get_pipe_config(struct intel_crtc *crtc, |
5816 | struct intel_crtc_config *pipe_config) | |
5817 | { | |
5818 | struct drm_device *dev = crtc->base.dev; | |
5819 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5820 | uint32_t tmp; | |
5821 | ||
eccb140b DV |
5822 | pipe_config->cpu_transcoder = crtc->pipe; |
5823 | ||
0e8ffe1b DV |
5824 | tmp = I915_READ(PIPECONF(crtc->pipe)); |
5825 | if (!(tmp & PIPECONF_ENABLE)) | |
5826 | return false; | |
5827 | ||
ab9412ba | 5828 | if (I915_READ(PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) { |
88adfff1 DV |
5829 | pipe_config->has_pch_encoder = true; |
5830 | ||
627eb5a3 DV |
5831 | tmp = I915_READ(FDI_RX_CTL(crtc->pipe)); |
5832 | pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >> | |
5833 | FDI_DP_PORT_WIDTH_SHIFT) + 1; | |
72419203 DV |
5834 | |
5835 | ironlake_get_fdi_m_n_config(crtc, pipe_config); | |
627eb5a3 DV |
5836 | } |
5837 | ||
1bd1bd80 DV |
5838 | intel_get_pipe_timings(crtc, pipe_config); |
5839 | ||
2fa2fe9a DV |
5840 | ironlake_get_pfit_config(crtc, pipe_config); |
5841 | ||
0e8ffe1b DV |
5842 | return true; |
5843 | } | |
5844 | ||
d6dd9eb1 DV |
5845 | static void haswell_modeset_global_resources(struct drm_device *dev) |
5846 | { | |
d6dd9eb1 DV |
5847 | bool enable = false; |
5848 | struct intel_crtc *crtc; | |
d6dd9eb1 DV |
5849 | |
5850 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) { | |
e7a639c4 DV |
5851 | if (!crtc->base.enabled) |
5852 | continue; | |
d6dd9eb1 | 5853 | |
e7a639c4 DV |
5854 | if (crtc->pipe != PIPE_A || crtc->config.pch_pfit.size || |
5855 | crtc->config.cpu_transcoder != TRANSCODER_EDP) | |
d6dd9eb1 DV |
5856 | enable = true; |
5857 | } | |
5858 | ||
d6dd9eb1 DV |
5859 | intel_set_power_well(dev, enable); |
5860 | } | |
5861 | ||
09b4ddf9 | 5862 | static int haswell_crtc_mode_set(struct drm_crtc *crtc, |
09b4ddf9 PZ |
5863 | int x, int y, |
5864 | struct drm_framebuffer *fb) | |
5865 | { | |
5866 | struct drm_device *dev = crtc->dev; | |
5867 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5868 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
b8cecdf5 DV |
5869 | struct drm_display_mode *adjusted_mode = |
5870 | &intel_crtc->config.adjusted_mode; | |
5871 | struct drm_display_mode *mode = &intel_crtc->config.requested_mode; | |
09b4ddf9 PZ |
5872 | int pipe = intel_crtc->pipe; |
5873 | int plane = intel_crtc->plane; | |
5874 | int num_connectors = 0; | |
8b47047b | 5875 | bool is_cpu_edp = false; |
09b4ddf9 | 5876 | struct intel_encoder *encoder; |
09b4ddf9 | 5877 | int ret; |
09b4ddf9 PZ |
5878 | |
5879 | for_each_encoder_on_crtc(dev, crtc, encoder) { | |
5880 | switch (encoder->type) { | |
09b4ddf9 | 5881 | case INTEL_OUTPUT_EDP: |
d8e8b582 | 5882 | if (enc_to_dig_port(&encoder->base)->port == PORT_A) |
09b4ddf9 PZ |
5883 | is_cpu_edp = true; |
5884 | break; | |
5885 | } | |
5886 | ||
5887 | num_connectors++; | |
5888 | } | |
5889 | ||
5dc5298b PZ |
5890 | WARN(num_connectors != 1, "%d connectors attached to pipe %c\n", |
5891 | num_connectors, pipe_name(pipe)); | |
5892 | ||
6441ab5f PZ |
5893 | if (!intel_ddi_pll_mode_set(crtc, adjusted_mode->clock)) |
5894 | return -EINVAL; | |
5895 | ||
09b4ddf9 PZ |
5896 | /* Ensure that the cursor is valid for the new mode before changing... */ |
5897 | intel_crtc_update_cursor(crtc, true); | |
5898 | ||
03afc4a2 DV |
5899 | if (intel_crtc->config.has_dp_encoder) |
5900 | intel_dp_set_m_n(intel_crtc); | |
09b4ddf9 PZ |
5901 | |
5902 | intel_crtc->lowfreq_avail = false; | |
09b4ddf9 PZ |
5903 | |
5904 | intel_set_pipe_timings(intel_crtc, mode, adjusted_mode); | |
5905 | ||
ca3a0ff8 | 5906 | if (intel_crtc->config.has_pch_encoder) { |
ca3a0ff8 DV |
5907 | intel_cpu_transcoder_set_m_n(intel_crtc, |
5908 | &intel_crtc->config.fdi_m_n); | |
5909 | } | |
09b4ddf9 | 5910 | |
6ff93609 | 5911 | haswell_set_pipeconf(crtc); |
09b4ddf9 | 5912 | |
50f3b016 | 5913 | intel_set_pipe_csc(crtc); |
86d3efce | 5914 | |
09b4ddf9 | 5915 | /* Set up the display plane register */ |
86d3efce | 5916 | I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE | DISPPLANE_PIPE_CSC_ENABLE); |
09b4ddf9 PZ |
5917 | POSTING_READ(DSPCNTR(plane)); |
5918 | ||
5919 | ret = intel_pipe_set_base(crtc, x, y, fb); | |
5920 | ||
5921 | intel_update_watermarks(dev); | |
5922 | ||
1f803ee5 | 5923 | return ret; |
79e53945 JB |
5924 | } |
5925 | ||
0e8ffe1b DV |
5926 | static bool haswell_get_pipe_config(struct intel_crtc *crtc, |
5927 | struct intel_crtc_config *pipe_config) | |
5928 | { | |
5929 | struct drm_device *dev = crtc->base.dev; | |
5930 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2fa2fe9a | 5931 | enum intel_display_power_domain pfit_domain; |
0e8ffe1b DV |
5932 | uint32_t tmp; |
5933 | ||
eccb140b DV |
5934 | pipe_config->cpu_transcoder = crtc->pipe; |
5935 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP)); | |
5936 | if (tmp & TRANS_DDI_FUNC_ENABLE) { | |
5937 | enum pipe trans_edp_pipe; | |
5938 | switch (tmp & TRANS_DDI_EDP_INPUT_MASK) { | |
5939 | default: | |
5940 | WARN(1, "unknown pipe linked to edp transcoder\n"); | |
5941 | case TRANS_DDI_EDP_INPUT_A_ONOFF: | |
5942 | case TRANS_DDI_EDP_INPUT_A_ON: | |
5943 | trans_edp_pipe = PIPE_A; | |
5944 | break; | |
5945 | case TRANS_DDI_EDP_INPUT_B_ONOFF: | |
5946 | trans_edp_pipe = PIPE_B; | |
5947 | break; | |
5948 | case TRANS_DDI_EDP_INPUT_C_ONOFF: | |
5949 | trans_edp_pipe = PIPE_C; | |
5950 | break; | |
5951 | } | |
5952 | ||
5953 | if (trans_edp_pipe == crtc->pipe) | |
5954 | pipe_config->cpu_transcoder = TRANSCODER_EDP; | |
5955 | } | |
5956 | ||
b97186f0 | 5957 | if (!intel_display_power_enabled(dev, |
eccb140b | 5958 | POWER_DOMAIN_TRANSCODER(pipe_config->cpu_transcoder))) |
2bfce950 PZ |
5959 | return false; |
5960 | ||
eccb140b | 5961 | tmp = I915_READ(PIPECONF(pipe_config->cpu_transcoder)); |
0e8ffe1b DV |
5962 | if (!(tmp & PIPECONF_ENABLE)) |
5963 | return false; | |
5964 | ||
88adfff1 | 5965 | /* |
f196e6be | 5966 | * Haswell has only FDI/PCH transcoder A. It is which is connected to |
88adfff1 DV |
5967 | * DDI E. So just check whether this pipe is wired to DDI E and whether |
5968 | * the PCH transcoder is on. | |
5969 | */ | |
eccb140b | 5970 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder)); |
88adfff1 | 5971 | if ((tmp & TRANS_DDI_PORT_MASK) == TRANS_DDI_SELECT_PORT(PORT_E) && |
ab9412ba | 5972 | I915_READ(LPT_TRANSCONF) & TRANS_ENABLE) { |
88adfff1 DV |
5973 | pipe_config->has_pch_encoder = true; |
5974 | ||
627eb5a3 DV |
5975 | tmp = I915_READ(FDI_RX_CTL(PIPE_A)); |
5976 | pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >> | |
5977 | FDI_DP_PORT_WIDTH_SHIFT) + 1; | |
72419203 DV |
5978 | |
5979 | ironlake_get_fdi_m_n_config(crtc, pipe_config); | |
627eb5a3 DV |
5980 | } |
5981 | ||
1bd1bd80 DV |
5982 | intel_get_pipe_timings(crtc, pipe_config); |
5983 | ||
2fa2fe9a DV |
5984 | pfit_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe); |
5985 | if (intel_display_power_enabled(dev, pfit_domain)) | |
5986 | ironlake_get_pfit_config(crtc, pipe_config); | |
5987 | ||
42db64ef PZ |
5988 | pipe_config->ips_enabled = hsw_crtc_supports_ips(crtc) && |
5989 | (I915_READ(IPS_CTL) & IPS_ENABLE); | |
5990 | ||
0e8ffe1b DV |
5991 | return true; |
5992 | } | |
5993 | ||
f564048e | 5994 | static int intel_crtc_mode_set(struct drm_crtc *crtc, |
f564048e | 5995 | int x, int y, |
94352cf9 | 5996 | struct drm_framebuffer *fb) |
f564048e EA |
5997 | { |
5998 | struct drm_device *dev = crtc->dev; | |
5999 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9256aa19 DV |
6000 | struct drm_encoder_helper_funcs *encoder_funcs; |
6001 | struct intel_encoder *encoder; | |
0b701d27 | 6002 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
b8cecdf5 DV |
6003 | struct drm_display_mode *adjusted_mode = |
6004 | &intel_crtc->config.adjusted_mode; | |
6005 | struct drm_display_mode *mode = &intel_crtc->config.requested_mode; | |
0b701d27 | 6006 | int pipe = intel_crtc->pipe; |
f564048e EA |
6007 | int ret; |
6008 | ||
0b701d27 | 6009 | drm_vblank_pre_modeset(dev, pipe); |
7662c8bd | 6010 | |
b8cecdf5 DV |
6011 | ret = dev_priv->display.crtc_mode_set(crtc, x, y, fb); |
6012 | ||
79e53945 | 6013 | drm_vblank_post_modeset(dev, pipe); |
5c3b82e2 | 6014 | |
9256aa19 DV |
6015 | if (ret != 0) |
6016 | return ret; | |
6017 | ||
6018 | for_each_encoder_on_crtc(dev, crtc, encoder) { | |
6019 | DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n", | |
6020 | encoder->base.base.id, | |
6021 | drm_get_encoder_name(&encoder->base), | |
6022 | mode->base.id, mode->name); | |
6cc5f341 DV |
6023 | if (encoder->mode_set) { |
6024 | encoder->mode_set(encoder); | |
6025 | } else { | |
6026 | encoder_funcs = encoder->base.helper_private; | |
6027 | encoder_funcs->mode_set(&encoder->base, mode, adjusted_mode); | |
6028 | } | |
9256aa19 DV |
6029 | } |
6030 | ||
6031 | return 0; | |
79e53945 JB |
6032 | } |
6033 | ||
3a9627f4 WF |
6034 | static bool intel_eld_uptodate(struct drm_connector *connector, |
6035 | int reg_eldv, uint32_t bits_eldv, | |
6036 | int reg_elda, uint32_t bits_elda, | |
6037 | int reg_edid) | |
6038 | { | |
6039 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
6040 | uint8_t *eld = connector->eld; | |
6041 | uint32_t i; | |
6042 | ||
6043 | i = I915_READ(reg_eldv); | |
6044 | i &= bits_eldv; | |
6045 | ||
6046 | if (!eld[0]) | |
6047 | return !i; | |
6048 | ||
6049 | if (!i) | |
6050 | return false; | |
6051 | ||
6052 | i = I915_READ(reg_elda); | |
6053 | i &= ~bits_elda; | |
6054 | I915_WRITE(reg_elda, i); | |
6055 | ||
6056 | for (i = 0; i < eld[2]; i++) | |
6057 | if (I915_READ(reg_edid) != *((uint32_t *)eld + i)) | |
6058 | return false; | |
6059 | ||
6060 | return true; | |
6061 | } | |
6062 | ||
e0dac65e WF |
6063 | static void g4x_write_eld(struct drm_connector *connector, |
6064 | struct drm_crtc *crtc) | |
6065 | { | |
6066 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
6067 | uint8_t *eld = connector->eld; | |
6068 | uint32_t eldv; | |
6069 | uint32_t len; | |
6070 | uint32_t i; | |
6071 | ||
6072 | i = I915_READ(G4X_AUD_VID_DID); | |
6073 | ||
6074 | if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL) | |
6075 | eldv = G4X_ELDV_DEVCL_DEVBLC; | |
6076 | else | |
6077 | eldv = G4X_ELDV_DEVCTG; | |
6078 | ||
3a9627f4 WF |
6079 | if (intel_eld_uptodate(connector, |
6080 | G4X_AUD_CNTL_ST, eldv, | |
6081 | G4X_AUD_CNTL_ST, G4X_ELD_ADDR, | |
6082 | G4X_HDMIW_HDMIEDID)) | |
6083 | return; | |
6084 | ||
e0dac65e WF |
6085 | i = I915_READ(G4X_AUD_CNTL_ST); |
6086 | i &= ~(eldv | G4X_ELD_ADDR); | |
6087 | len = (i >> 9) & 0x1f; /* ELD buffer size */ | |
6088 | I915_WRITE(G4X_AUD_CNTL_ST, i); | |
6089 | ||
6090 | if (!eld[0]) | |
6091 | return; | |
6092 | ||
6093 | len = min_t(uint8_t, eld[2], len); | |
6094 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
6095 | for (i = 0; i < len; i++) | |
6096 | I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i)); | |
6097 | ||
6098 | i = I915_READ(G4X_AUD_CNTL_ST); | |
6099 | i |= eldv; | |
6100 | I915_WRITE(G4X_AUD_CNTL_ST, i); | |
6101 | } | |
6102 | ||
83358c85 WX |
6103 | static void haswell_write_eld(struct drm_connector *connector, |
6104 | struct drm_crtc *crtc) | |
6105 | { | |
6106 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
6107 | uint8_t *eld = connector->eld; | |
6108 | struct drm_device *dev = crtc->dev; | |
7b9f35a6 | 6109 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
83358c85 WX |
6110 | uint32_t eldv; |
6111 | uint32_t i; | |
6112 | int len; | |
6113 | int pipe = to_intel_crtc(crtc)->pipe; | |
6114 | int tmp; | |
6115 | ||
6116 | int hdmiw_hdmiedid = HSW_AUD_EDID_DATA(pipe); | |
6117 | int aud_cntl_st = HSW_AUD_DIP_ELD_CTRL(pipe); | |
6118 | int aud_config = HSW_AUD_CFG(pipe); | |
6119 | int aud_cntrl_st2 = HSW_AUD_PIN_ELD_CP_VLD; | |
6120 | ||
6121 | ||
6122 | DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n"); | |
6123 | ||
6124 | /* Audio output enable */ | |
6125 | DRM_DEBUG_DRIVER("HDMI audio: enable codec\n"); | |
6126 | tmp = I915_READ(aud_cntrl_st2); | |
6127 | tmp |= (AUDIO_OUTPUT_ENABLE_A << (pipe * 4)); | |
6128 | I915_WRITE(aud_cntrl_st2, tmp); | |
6129 | ||
6130 | /* Wait for 1 vertical blank */ | |
6131 | intel_wait_for_vblank(dev, pipe); | |
6132 | ||
6133 | /* Set ELD valid state */ | |
6134 | tmp = I915_READ(aud_cntrl_st2); | |
6135 | DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%8x\n", tmp); | |
6136 | tmp |= (AUDIO_ELD_VALID_A << (pipe * 4)); | |
6137 | I915_WRITE(aud_cntrl_st2, tmp); | |
6138 | tmp = I915_READ(aud_cntrl_st2); | |
6139 | DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%8x\n", tmp); | |
6140 | ||
6141 | /* Enable HDMI mode */ | |
6142 | tmp = I915_READ(aud_config); | |
6143 | DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%8x\n", tmp); | |
6144 | /* clear N_programing_enable and N_value_index */ | |
6145 | tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE); | |
6146 | I915_WRITE(aud_config, tmp); | |
6147 | ||
6148 | DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe)); | |
6149 | ||
6150 | eldv = AUDIO_ELD_VALID_A << (pipe * 4); | |
7b9f35a6 | 6151 | intel_crtc->eld_vld = true; |
83358c85 WX |
6152 | |
6153 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { | |
6154 | DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n"); | |
6155 | eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */ | |
6156 | I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */ | |
6157 | } else | |
6158 | I915_WRITE(aud_config, 0); | |
6159 | ||
6160 | if (intel_eld_uptodate(connector, | |
6161 | aud_cntrl_st2, eldv, | |
6162 | aud_cntl_st, IBX_ELD_ADDRESS, | |
6163 | hdmiw_hdmiedid)) | |
6164 | return; | |
6165 | ||
6166 | i = I915_READ(aud_cntrl_st2); | |
6167 | i &= ~eldv; | |
6168 | I915_WRITE(aud_cntrl_st2, i); | |
6169 | ||
6170 | if (!eld[0]) | |
6171 | return; | |
6172 | ||
6173 | i = I915_READ(aud_cntl_st); | |
6174 | i &= ~IBX_ELD_ADDRESS; | |
6175 | I915_WRITE(aud_cntl_st, i); | |
6176 | i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */ | |
6177 | DRM_DEBUG_DRIVER("port num:%d\n", i); | |
6178 | ||
6179 | len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */ | |
6180 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
6181 | for (i = 0; i < len; i++) | |
6182 | I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i)); | |
6183 | ||
6184 | i = I915_READ(aud_cntrl_st2); | |
6185 | i |= eldv; | |
6186 | I915_WRITE(aud_cntrl_st2, i); | |
6187 | ||
6188 | } | |
6189 | ||
e0dac65e WF |
6190 | static void ironlake_write_eld(struct drm_connector *connector, |
6191 | struct drm_crtc *crtc) | |
6192 | { | |
6193 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
6194 | uint8_t *eld = connector->eld; | |
6195 | uint32_t eldv; | |
6196 | uint32_t i; | |
6197 | int len; | |
6198 | int hdmiw_hdmiedid; | |
b6daa025 | 6199 | int aud_config; |
e0dac65e WF |
6200 | int aud_cntl_st; |
6201 | int aud_cntrl_st2; | |
9b138a83 | 6202 | int pipe = to_intel_crtc(crtc)->pipe; |
e0dac65e | 6203 | |
b3f33cbf | 6204 | if (HAS_PCH_IBX(connector->dev)) { |
9b138a83 WX |
6205 | hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe); |
6206 | aud_config = IBX_AUD_CFG(pipe); | |
6207 | aud_cntl_st = IBX_AUD_CNTL_ST(pipe); | |
1202b4c6 | 6208 | aud_cntrl_st2 = IBX_AUD_CNTL_ST2; |
e0dac65e | 6209 | } else { |
9b138a83 WX |
6210 | hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe); |
6211 | aud_config = CPT_AUD_CFG(pipe); | |
6212 | aud_cntl_st = CPT_AUD_CNTL_ST(pipe); | |
1202b4c6 | 6213 | aud_cntrl_st2 = CPT_AUD_CNTRL_ST2; |
e0dac65e WF |
6214 | } |
6215 | ||
9b138a83 | 6216 | DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe)); |
e0dac65e WF |
6217 | |
6218 | i = I915_READ(aud_cntl_st); | |
9b138a83 | 6219 | i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */ |
e0dac65e WF |
6220 | if (!i) { |
6221 | DRM_DEBUG_DRIVER("Audio directed to unknown port\n"); | |
6222 | /* operate blindly on all ports */ | |
1202b4c6 WF |
6223 | eldv = IBX_ELD_VALIDB; |
6224 | eldv |= IBX_ELD_VALIDB << 4; | |
6225 | eldv |= IBX_ELD_VALIDB << 8; | |
e0dac65e | 6226 | } else { |
2582a850 | 6227 | DRM_DEBUG_DRIVER("ELD on port %c\n", port_name(i)); |
1202b4c6 | 6228 | eldv = IBX_ELD_VALIDB << ((i - 1) * 4); |
e0dac65e WF |
6229 | } |
6230 | ||
3a9627f4 WF |
6231 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
6232 | DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n"); | |
6233 | eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */ | |
b6daa025 WF |
6234 | I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */ |
6235 | } else | |
6236 | I915_WRITE(aud_config, 0); | |
e0dac65e | 6237 | |
3a9627f4 WF |
6238 | if (intel_eld_uptodate(connector, |
6239 | aud_cntrl_st2, eldv, | |
6240 | aud_cntl_st, IBX_ELD_ADDRESS, | |
6241 | hdmiw_hdmiedid)) | |
6242 | return; | |
6243 | ||
e0dac65e WF |
6244 | i = I915_READ(aud_cntrl_st2); |
6245 | i &= ~eldv; | |
6246 | I915_WRITE(aud_cntrl_st2, i); | |
6247 | ||
6248 | if (!eld[0]) | |
6249 | return; | |
6250 | ||
e0dac65e | 6251 | i = I915_READ(aud_cntl_st); |
1202b4c6 | 6252 | i &= ~IBX_ELD_ADDRESS; |
e0dac65e WF |
6253 | I915_WRITE(aud_cntl_st, i); |
6254 | ||
6255 | len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */ | |
6256 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
6257 | for (i = 0; i < len; i++) | |
6258 | I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i)); | |
6259 | ||
6260 | i = I915_READ(aud_cntrl_st2); | |
6261 | i |= eldv; | |
6262 | I915_WRITE(aud_cntrl_st2, i); | |
6263 | } | |
6264 | ||
6265 | void intel_write_eld(struct drm_encoder *encoder, | |
6266 | struct drm_display_mode *mode) | |
6267 | { | |
6268 | struct drm_crtc *crtc = encoder->crtc; | |
6269 | struct drm_connector *connector; | |
6270 | struct drm_device *dev = encoder->dev; | |
6271 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6272 | ||
6273 | connector = drm_select_eld(encoder, mode); | |
6274 | if (!connector) | |
6275 | return; | |
6276 | ||
6277 | DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", | |
6278 | connector->base.id, | |
6279 | drm_get_connector_name(connector), | |
6280 | connector->encoder->base.id, | |
6281 | drm_get_encoder_name(connector->encoder)); | |
6282 | ||
6283 | connector->eld[6] = drm_av_sync_delay(connector, mode) / 2; | |
6284 | ||
6285 | if (dev_priv->display.write_eld) | |
6286 | dev_priv->display.write_eld(connector, crtc); | |
6287 | } | |
6288 | ||
79e53945 JB |
6289 | /** Loads the palette/gamma unit for the CRTC with the prepared values */ |
6290 | void intel_crtc_load_lut(struct drm_crtc *crtc) | |
6291 | { | |
6292 | struct drm_device *dev = crtc->dev; | |
6293 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6294 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
42db64ef PZ |
6295 | enum pipe pipe = intel_crtc->pipe; |
6296 | int palreg = PALETTE(pipe); | |
79e53945 | 6297 | int i; |
42db64ef | 6298 | bool reenable_ips = false; |
79e53945 JB |
6299 | |
6300 | /* The clocks have to be on to load the palette. */ | |
aed3f09d | 6301 | if (!crtc->enabled || !intel_crtc->active) |
79e53945 JB |
6302 | return; |
6303 | ||
f2b115e6 | 6304 | /* use legacy palette for Ironlake */ |
bad720ff | 6305 | if (HAS_PCH_SPLIT(dev)) |
42db64ef PZ |
6306 | palreg = LGC_PALETTE(pipe); |
6307 | ||
6308 | /* Workaround : Do not read or write the pipe palette/gamma data while | |
6309 | * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled. | |
6310 | */ | |
6311 | if (intel_crtc->config.ips_enabled && | |
6312 | ((I915_READ(GAMMA_MODE(pipe)) & GAMMA_MODE_MODE_MASK) == | |
6313 | GAMMA_MODE_MODE_SPLIT)) { | |
6314 | hsw_disable_ips(intel_crtc); | |
6315 | reenable_ips = true; | |
6316 | } | |
2c07245f | 6317 | |
79e53945 JB |
6318 | for (i = 0; i < 256; i++) { |
6319 | I915_WRITE(palreg + 4 * i, | |
6320 | (intel_crtc->lut_r[i] << 16) | | |
6321 | (intel_crtc->lut_g[i] << 8) | | |
6322 | intel_crtc->lut_b[i]); | |
6323 | } | |
42db64ef PZ |
6324 | |
6325 | if (reenable_ips) | |
6326 | hsw_enable_ips(intel_crtc); | |
79e53945 JB |
6327 | } |
6328 | ||
560b85bb CW |
6329 | static void i845_update_cursor(struct drm_crtc *crtc, u32 base) |
6330 | { | |
6331 | struct drm_device *dev = crtc->dev; | |
6332 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6333 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6334 | bool visible = base != 0; | |
6335 | u32 cntl; | |
6336 | ||
6337 | if (intel_crtc->cursor_visible == visible) | |
6338 | return; | |
6339 | ||
9db4a9c7 | 6340 | cntl = I915_READ(_CURACNTR); |
560b85bb CW |
6341 | if (visible) { |
6342 | /* On these chipsets we can only modify the base whilst | |
6343 | * the cursor is disabled. | |
6344 | */ | |
9db4a9c7 | 6345 | I915_WRITE(_CURABASE, base); |
560b85bb CW |
6346 | |
6347 | cntl &= ~(CURSOR_FORMAT_MASK); | |
6348 | /* XXX width must be 64, stride 256 => 0x00 << 28 */ | |
6349 | cntl |= CURSOR_ENABLE | | |
6350 | CURSOR_GAMMA_ENABLE | | |
6351 | CURSOR_FORMAT_ARGB; | |
6352 | } else | |
6353 | cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE); | |
9db4a9c7 | 6354 | I915_WRITE(_CURACNTR, cntl); |
560b85bb CW |
6355 | |
6356 | intel_crtc->cursor_visible = visible; | |
6357 | } | |
6358 | ||
6359 | static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base) | |
6360 | { | |
6361 | struct drm_device *dev = crtc->dev; | |
6362 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6363 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6364 | int pipe = intel_crtc->pipe; | |
6365 | bool visible = base != 0; | |
6366 | ||
6367 | if (intel_crtc->cursor_visible != visible) { | |
548f245b | 6368 | uint32_t cntl = I915_READ(CURCNTR(pipe)); |
560b85bb CW |
6369 | if (base) { |
6370 | cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT); | |
6371 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; | |
6372 | cntl |= pipe << 28; /* Connect to correct pipe */ | |
6373 | } else { | |
6374 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); | |
6375 | cntl |= CURSOR_MODE_DISABLE; | |
6376 | } | |
9db4a9c7 | 6377 | I915_WRITE(CURCNTR(pipe), cntl); |
560b85bb CW |
6378 | |
6379 | intel_crtc->cursor_visible = visible; | |
6380 | } | |
6381 | /* and commit changes on next vblank */ | |
9db4a9c7 | 6382 | I915_WRITE(CURBASE(pipe), base); |
560b85bb CW |
6383 | } |
6384 | ||
65a21cd6 JB |
6385 | static void ivb_update_cursor(struct drm_crtc *crtc, u32 base) |
6386 | { | |
6387 | struct drm_device *dev = crtc->dev; | |
6388 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6389 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6390 | int pipe = intel_crtc->pipe; | |
6391 | bool visible = base != 0; | |
6392 | ||
6393 | if (intel_crtc->cursor_visible != visible) { | |
6394 | uint32_t cntl = I915_READ(CURCNTR_IVB(pipe)); | |
6395 | if (base) { | |
6396 | cntl &= ~CURSOR_MODE; | |
6397 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; | |
6398 | } else { | |
6399 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); | |
6400 | cntl |= CURSOR_MODE_DISABLE; | |
6401 | } | |
86d3efce VS |
6402 | if (IS_HASWELL(dev)) |
6403 | cntl |= CURSOR_PIPE_CSC_ENABLE; | |
65a21cd6 JB |
6404 | I915_WRITE(CURCNTR_IVB(pipe), cntl); |
6405 | ||
6406 | intel_crtc->cursor_visible = visible; | |
6407 | } | |
6408 | /* and commit changes on next vblank */ | |
6409 | I915_WRITE(CURBASE_IVB(pipe), base); | |
6410 | } | |
6411 | ||
cda4b7d3 | 6412 | /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */ |
6b383a7f CW |
6413 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, |
6414 | bool on) | |
cda4b7d3 CW |
6415 | { |
6416 | struct drm_device *dev = crtc->dev; | |
6417 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6418 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6419 | int pipe = intel_crtc->pipe; | |
6420 | int x = intel_crtc->cursor_x; | |
6421 | int y = intel_crtc->cursor_y; | |
560b85bb | 6422 | u32 base, pos; |
cda4b7d3 CW |
6423 | bool visible; |
6424 | ||
6425 | pos = 0; | |
6426 | ||
6b383a7f | 6427 | if (on && crtc->enabled && crtc->fb) { |
cda4b7d3 CW |
6428 | base = intel_crtc->cursor_addr; |
6429 | if (x > (int) crtc->fb->width) | |
6430 | base = 0; | |
6431 | ||
6432 | if (y > (int) crtc->fb->height) | |
6433 | base = 0; | |
6434 | } else | |
6435 | base = 0; | |
6436 | ||
6437 | if (x < 0) { | |
6438 | if (x + intel_crtc->cursor_width < 0) | |
6439 | base = 0; | |
6440 | ||
6441 | pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT; | |
6442 | x = -x; | |
6443 | } | |
6444 | pos |= x << CURSOR_X_SHIFT; | |
6445 | ||
6446 | if (y < 0) { | |
6447 | if (y + intel_crtc->cursor_height < 0) | |
6448 | base = 0; | |
6449 | ||
6450 | pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT; | |
6451 | y = -y; | |
6452 | } | |
6453 | pos |= y << CURSOR_Y_SHIFT; | |
6454 | ||
6455 | visible = base != 0; | |
560b85bb | 6456 | if (!visible && !intel_crtc->cursor_visible) |
cda4b7d3 CW |
6457 | return; |
6458 | ||
0cd83aa9 | 6459 | if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) { |
65a21cd6 JB |
6460 | I915_WRITE(CURPOS_IVB(pipe), pos); |
6461 | ivb_update_cursor(crtc, base); | |
6462 | } else { | |
6463 | I915_WRITE(CURPOS(pipe), pos); | |
6464 | if (IS_845G(dev) || IS_I865G(dev)) | |
6465 | i845_update_cursor(crtc, base); | |
6466 | else | |
6467 | i9xx_update_cursor(crtc, base); | |
6468 | } | |
cda4b7d3 CW |
6469 | } |
6470 | ||
79e53945 | 6471 | static int intel_crtc_cursor_set(struct drm_crtc *crtc, |
05394f39 | 6472 | struct drm_file *file, |
79e53945 JB |
6473 | uint32_t handle, |
6474 | uint32_t width, uint32_t height) | |
6475 | { | |
6476 | struct drm_device *dev = crtc->dev; | |
6477 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6478 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
05394f39 | 6479 | struct drm_i915_gem_object *obj; |
cda4b7d3 | 6480 | uint32_t addr; |
3f8bc370 | 6481 | int ret; |
79e53945 | 6482 | |
79e53945 JB |
6483 | /* if we want to turn off the cursor ignore width and height */ |
6484 | if (!handle) { | |
28c97730 | 6485 | DRM_DEBUG_KMS("cursor off\n"); |
3f8bc370 | 6486 | addr = 0; |
05394f39 | 6487 | obj = NULL; |
5004417d | 6488 | mutex_lock(&dev->struct_mutex); |
3f8bc370 | 6489 | goto finish; |
79e53945 JB |
6490 | } |
6491 | ||
6492 | /* Currently we only support 64x64 cursors */ | |
6493 | if (width != 64 || height != 64) { | |
6494 | DRM_ERROR("we currently only support 64x64 cursors\n"); | |
6495 | return -EINVAL; | |
6496 | } | |
6497 | ||
05394f39 | 6498 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle)); |
c8725226 | 6499 | if (&obj->base == NULL) |
79e53945 JB |
6500 | return -ENOENT; |
6501 | ||
05394f39 | 6502 | if (obj->base.size < width * height * 4) { |
79e53945 | 6503 | DRM_ERROR("buffer is to small\n"); |
34b8686e DA |
6504 | ret = -ENOMEM; |
6505 | goto fail; | |
79e53945 JB |
6506 | } |
6507 | ||
71acb5eb | 6508 | /* we only need to pin inside GTT if cursor is non-phy */ |
7f9872e0 | 6509 | mutex_lock(&dev->struct_mutex); |
b295d1b6 | 6510 | if (!dev_priv->info->cursor_needs_physical) { |
693db184 CW |
6511 | unsigned alignment; |
6512 | ||
d9e86c0e CW |
6513 | if (obj->tiling_mode) { |
6514 | DRM_ERROR("cursor cannot be tiled\n"); | |
6515 | ret = -EINVAL; | |
6516 | goto fail_locked; | |
6517 | } | |
6518 | ||
693db184 CW |
6519 | /* Note that the w/a also requires 2 PTE of padding following |
6520 | * the bo. We currently fill all unused PTE with the shadow | |
6521 | * page and so we should always have valid PTE following the | |
6522 | * cursor preventing the VT-d warning. | |
6523 | */ | |
6524 | alignment = 0; | |
6525 | if (need_vtd_wa(dev)) | |
6526 | alignment = 64*1024; | |
6527 | ||
6528 | ret = i915_gem_object_pin_to_display_plane(obj, alignment, NULL); | |
e7b526bb CW |
6529 | if (ret) { |
6530 | DRM_ERROR("failed to move cursor bo into the GTT\n"); | |
2da3b9b9 | 6531 | goto fail_locked; |
e7b526bb CW |
6532 | } |
6533 | ||
d9e86c0e CW |
6534 | ret = i915_gem_object_put_fence(obj); |
6535 | if (ret) { | |
2da3b9b9 | 6536 | DRM_ERROR("failed to release fence for cursor"); |
d9e86c0e CW |
6537 | goto fail_unpin; |
6538 | } | |
6539 | ||
05394f39 | 6540 | addr = obj->gtt_offset; |
71acb5eb | 6541 | } else { |
6eeefaf3 | 6542 | int align = IS_I830(dev) ? 16 * 1024 : 256; |
05394f39 | 6543 | ret = i915_gem_attach_phys_object(dev, obj, |
6eeefaf3 CW |
6544 | (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1, |
6545 | align); | |
71acb5eb DA |
6546 | if (ret) { |
6547 | DRM_ERROR("failed to attach phys object\n"); | |
7f9872e0 | 6548 | goto fail_locked; |
71acb5eb | 6549 | } |
05394f39 | 6550 | addr = obj->phys_obj->handle->busaddr; |
3f8bc370 KH |
6551 | } |
6552 | ||
a6c45cf0 | 6553 | if (IS_GEN2(dev)) |
14b60391 JB |
6554 | I915_WRITE(CURSIZE, (height << 12) | width); |
6555 | ||
3f8bc370 | 6556 | finish: |
3f8bc370 | 6557 | if (intel_crtc->cursor_bo) { |
b295d1b6 | 6558 | if (dev_priv->info->cursor_needs_physical) { |
05394f39 | 6559 | if (intel_crtc->cursor_bo != obj) |
71acb5eb DA |
6560 | i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo); |
6561 | } else | |
6562 | i915_gem_object_unpin(intel_crtc->cursor_bo); | |
05394f39 | 6563 | drm_gem_object_unreference(&intel_crtc->cursor_bo->base); |
3f8bc370 | 6564 | } |
80824003 | 6565 | |
7f9872e0 | 6566 | mutex_unlock(&dev->struct_mutex); |
3f8bc370 KH |
6567 | |
6568 | intel_crtc->cursor_addr = addr; | |
05394f39 | 6569 | intel_crtc->cursor_bo = obj; |
cda4b7d3 CW |
6570 | intel_crtc->cursor_width = width; |
6571 | intel_crtc->cursor_height = height; | |
6572 | ||
40ccc72b | 6573 | intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL); |
3f8bc370 | 6574 | |
79e53945 | 6575 | return 0; |
e7b526bb | 6576 | fail_unpin: |
05394f39 | 6577 | i915_gem_object_unpin(obj); |
7f9872e0 | 6578 | fail_locked: |
34b8686e | 6579 | mutex_unlock(&dev->struct_mutex); |
bc9025bd | 6580 | fail: |
05394f39 | 6581 | drm_gem_object_unreference_unlocked(&obj->base); |
34b8686e | 6582 | return ret; |
79e53945 JB |
6583 | } |
6584 | ||
6585 | static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) | |
6586 | { | |
79e53945 | 6587 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 6588 | |
cda4b7d3 CW |
6589 | intel_crtc->cursor_x = x; |
6590 | intel_crtc->cursor_y = y; | |
652c393a | 6591 | |
40ccc72b | 6592 | intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL); |
79e53945 JB |
6593 | |
6594 | return 0; | |
6595 | } | |
6596 | ||
6597 | /** Sets the color ramps on behalf of RandR */ | |
6598 | void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, | |
6599 | u16 blue, int regno) | |
6600 | { | |
6601 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6602 | ||
6603 | intel_crtc->lut_r[regno] = red >> 8; | |
6604 | intel_crtc->lut_g[regno] = green >> 8; | |
6605 | intel_crtc->lut_b[regno] = blue >> 8; | |
6606 | } | |
6607 | ||
b8c00ac5 DA |
6608 | void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, |
6609 | u16 *blue, int regno) | |
6610 | { | |
6611 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6612 | ||
6613 | *red = intel_crtc->lut_r[regno] << 8; | |
6614 | *green = intel_crtc->lut_g[regno] << 8; | |
6615 | *blue = intel_crtc->lut_b[regno] << 8; | |
6616 | } | |
6617 | ||
79e53945 | 6618 | static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, |
7203425a | 6619 | u16 *blue, uint32_t start, uint32_t size) |
79e53945 | 6620 | { |
7203425a | 6621 | int end = (start + size > 256) ? 256 : start + size, i; |
79e53945 | 6622 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 6623 | |
7203425a | 6624 | for (i = start; i < end; i++) { |
79e53945 JB |
6625 | intel_crtc->lut_r[i] = red[i] >> 8; |
6626 | intel_crtc->lut_g[i] = green[i] >> 8; | |
6627 | intel_crtc->lut_b[i] = blue[i] >> 8; | |
6628 | } | |
6629 | ||
6630 | intel_crtc_load_lut(crtc); | |
6631 | } | |
6632 | ||
79e53945 JB |
6633 | /* VESA 640x480x72Hz mode to set on the pipe */ |
6634 | static struct drm_display_mode load_detect_mode = { | |
6635 | DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, | |
6636 | 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), | |
6637 | }; | |
6638 | ||
d2dff872 CW |
6639 | static struct drm_framebuffer * |
6640 | intel_framebuffer_create(struct drm_device *dev, | |
308e5bcb | 6641 | struct drm_mode_fb_cmd2 *mode_cmd, |
d2dff872 CW |
6642 | struct drm_i915_gem_object *obj) |
6643 | { | |
6644 | struct intel_framebuffer *intel_fb; | |
6645 | int ret; | |
6646 | ||
6647 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); | |
6648 | if (!intel_fb) { | |
6649 | drm_gem_object_unreference_unlocked(&obj->base); | |
6650 | return ERR_PTR(-ENOMEM); | |
6651 | } | |
6652 | ||
6653 | ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj); | |
6654 | if (ret) { | |
6655 | drm_gem_object_unreference_unlocked(&obj->base); | |
6656 | kfree(intel_fb); | |
6657 | return ERR_PTR(ret); | |
6658 | } | |
6659 | ||
6660 | return &intel_fb->base; | |
6661 | } | |
6662 | ||
6663 | static u32 | |
6664 | intel_framebuffer_pitch_for_width(int width, int bpp) | |
6665 | { | |
6666 | u32 pitch = DIV_ROUND_UP(width * bpp, 8); | |
6667 | return ALIGN(pitch, 64); | |
6668 | } | |
6669 | ||
6670 | static u32 | |
6671 | intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp) | |
6672 | { | |
6673 | u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp); | |
6674 | return ALIGN(pitch * mode->vdisplay, PAGE_SIZE); | |
6675 | } | |
6676 | ||
6677 | static struct drm_framebuffer * | |
6678 | intel_framebuffer_create_for_mode(struct drm_device *dev, | |
6679 | struct drm_display_mode *mode, | |
6680 | int depth, int bpp) | |
6681 | { | |
6682 | struct drm_i915_gem_object *obj; | |
0fed39bd | 6683 | struct drm_mode_fb_cmd2 mode_cmd = { 0 }; |
d2dff872 CW |
6684 | |
6685 | obj = i915_gem_alloc_object(dev, | |
6686 | intel_framebuffer_size_for_mode(mode, bpp)); | |
6687 | if (obj == NULL) | |
6688 | return ERR_PTR(-ENOMEM); | |
6689 | ||
6690 | mode_cmd.width = mode->hdisplay; | |
6691 | mode_cmd.height = mode->vdisplay; | |
308e5bcb JB |
6692 | mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width, |
6693 | bpp); | |
5ca0c34a | 6694 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); |
d2dff872 CW |
6695 | |
6696 | return intel_framebuffer_create(dev, &mode_cmd, obj); | |
6697 | } | |
6698 | ||
6699 | static struct drm_framebuffer * | |
6700 | mode_fits_in_fbdev(struct drm_device *dev, | |
6701 | struct drm_display_mode *mode) | |
6702 | { | |
6703 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6704 | struct drm_i915_gem_object *obj; | |
6705 | struct drm_framebuffer *fb; | |
6706 | ||
6707 | if (dev_priv->fbdev == NULL) | |
6708 | return NULL; | |
6709 | ||
6710 | obj = dev_priv->fbdev->ifb.obj; | |
6711 | if (obj == NULL) | |
6712 | return NULL; | |
6713 | ||
6714 | fb = &dev_priv->fbdev->ifb.base; | |
01f2c773 VS |
6715 | if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay, |
6716 | fb->bits_per_pixel)) | |
d2dff872 CW |
6717 | return NULL; |
6718 | ||
01f2c773 | 6719 | if (obj->base.size < mode->vdisplay * fb->pitches[0]) |
d2dff872 CW |
6720 | return NULL; |
6721 | ||
6722 | return fb; | |
6723 | } | |
6724 | ||
d2434ab7 | 6725 | bool intel_get_load_detect_pipe(struct drm_connector *connector, |
7173188d | 6726 | struct drm_display_mode *mode, |
8261b191 | 6727 | struct intel_load_detect_pipe *old) |
79e53945 JB |
6728 | { |
6729 | struct intel_crtc *intel_crtc; | |
d2434ab7 DV |
6730 | struct intel_encoder *intel_encoder = |
6731 | intel_attached_encoder(connector); | |
79e53945 | 6732 | struct drm_crtc *possible_crtc; |
4ef69c7a | 6733 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 JB |
6734 | struct drm_crtc *crtc = NULL; |
6735 | struct drm_device *dev = encoder->dev; | |
94352cf9 | 6736 | struct drm_framebuffer *fb; |
79e53945 JB |
6737 | int i = -1; |
6738 | ||
d2dff872 CW |
6739 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
6740 | connector->base.id, drm_get_connector_name(connector), | |
6741 | encoder->base.id, drm_get_encoder_name(encoder)); | |
6742 | ||
79e53945 JB |
6743 | /* |
6744 | * Algorithm gets a little messy: | |
7a5e4805 | 6745 | * |
79e53945 JB |
6746 | * - if the connector already has an assigned crtc, use it (but make |
6747 | * sure it's on first) | |
7a5e4805 | 6748 | * |
79e53945 JB |
6749 | * - try to find the first unused crtc that can drive this connector, |
6750 | * and use that if we find one | |
79e53945 JB |
6751 | */ |
6752 | ||
6753 | /* See if we already have a CRTC for this connector */ | |
6754 | if (encoder->crtc) { | |
6755 | crtc = encoder->crtc; | |
8261b191 | 6756 | |
7b24056b DV |
6757 | mutex_lock(&crtc->mutex); |
6758 | ||
24218aac | 6759 | old->dpms_mode = connector->dpms; |
8261b191 CW |
6760 | old->load_detect_temp = false; |
6761 | ||
6762 | /* Make sure the crtc and connector are running */ | |
24218aac DV |
6763 | if (connector->dpms != DRM_MODE_DPMS_ON) |
6764 | connector->funcs->dpms(connector, DRM_MODE_DPMS_ON); | |
8261b191 | 6765 | |
7173188d | 6766 | return true; |
79e53945 JB |
6767 | } |
6768 | ||
6769 | /* Find an unused one (if possible) */ | |
6770 | list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) { | |
6771 | i++; | |
6772 | if (!(encoder->possible_crtcs & (1 << i))) | |
6773 | continue; | |
6774 | if (!possible_crtc->enabled) { | |
6775 | crtc = possible_crtc; | |
6776 | break; | |
6777 | } | |
79e53945 JB |
6778 | } |
6779 | ||
6780 | /* | |
6781 | * If we didn't find an unused CRTC, don't use any. | |
6782 | */ | |
6783 | if (!crtc) { | |
7173188d CW |
6784 | DRM_DEBUG_KMS("no pipe available for load-detect\n"); |
6785 | return false; | |
79e53945 JB |
6786 | } |
6787 | ||
7b24056b | 6788 | mutex_lock(&crtc->mutex); |
fc303101 DV |
6789 | intel_encoder->new_crtc = to_intel_crtc(crtc); |
6790 | to_intel_connector(connector)->new_encoder = intel_encoder; | |
79e53945 JB |
6791 | |
6792 | intel_crtc = to_intel_crtc(crtc); | |
24218aac | 6793 | old->dpms_mode = connector->dpms; |
8261b191 | 6794 | old->load_detect_temp = true; |
d2dff872 | 6795 | old->release_fb = NULL; |
79e53945 | 6796 | |
6492711d CW |
6797 | if (!mode) |
6798 | mode = &load_detect_mode; | |
79e53945 | 6799 | |
d2dff872 CW |
6800 | /* We need a framebuffer large enough to accommodate all accesses |
6801 | * that the plane may generate whilst we perform load detection. | |
6802 | * We can not rely on the fbcon either being present (we get called | |
6803 | * during its initialisation to detect all boot displays, or it may | |
6804 | * not even exist) or that it is large enough to satisfy the | |
6805 | * requested mode. | |
6806 | */ | |
94352cf9 DV |
6807 | fb = mode_fits_in_fbdev(dev, mode); |
6808 | if (fb == NULL) { | |
d2dff872 | 6809 | DRM_DEBUG_KMS("creating tmp fb for load-detection\n"); |
94352cf9 DV |
6810 | fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32); |
6811 | old->release_fb = fb; | |
d2dff872 CW |
6812 | } else |
6813 | DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n"); | |
94352cf9 | 6814 | if (IS_ERR(fb)) { |
d2dff872 | 6815 | DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n"); |
7b24056b | 6816 | mutex_unlock(&crtc->mutex); |
0e8b3d3e | 6817 | return false; |
79e53945 | 6818 | } |
79e53945 | 6819 | |
c0c36b94 | 6820 | if (intel_set_mode(crtc, mode, 0, 0, fb)) { |
6492711d | 6821 | DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n"); |
d2dff872 CW |
6822 | if (old->release_fb) |
6823 | old->release_fb->funcs->destroy(old->release_fb); | |
7b24056b | 6824 | mutex_unlock(&crtc->mutex); |
0e8b3d3e | 6825 | return false; |
79e53945 | 6826 | } |
7173188d | 6827 | |
79e53945 | 6828 | /* let the connector get through one full cycle before testing */ |
9d0498a2 | 6829 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
7173188d | 6830 | return true; |
79e53945 JB |
6831 | } |
6832 | ||
d2434ab7 | 6833 | void intel_release_load_detect_pipe(struct drm_connector *connector, |
8261b191 | 6834 | struct intel_load_detect_pipe *old) |
79e53945 | 6835 | { |
d2434ab7 DV |
6836 | struct intel_encoder *intel_encoder = |
6837 | intel_attached_encoder(connector); | |
4ef69c7a | 6838 | struct drm_encoder *encoder = &intel_encoder->base; |
7b24056b | 6839 | struct drm_crtc *crtc = encoder->crtc; |
79e53945 | 6840 | |
d2dff872 CW |
6841 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
6842 | connector->base.id, drm_get_connector_name(connector), | |
6843 | encoder->base.id, drm_get_encoder_name(encoder)); | |
6844 | ||
8261b191 | 6845 | if (old->load_detect_temp) { |
fc303101 DV |
6846 | to_intel_connector(connector)->new_encoder = NULL; |
6847 | intel_encoder->new_crtc = NULL; | |
6848 | intel_set_mode(crtc, NULL, 0, 0, NULL); | |
d2dff872 | 6849 | |
36206361 DV |
6850 | if (old->release_fb) { |
6851 | drm_framebuffer_unregister_private(old->release_fb); | |
6852 | drm_framebuffer_unreference(old->release_fb); | |
6853 | } | |
d2dff872 | 6854 | |
67c96400 | 6855 | mutex_unlock(&crtc->mutex); |
0622a53c | 6856 | return; |
79e53945 JB |
6857 | } |
6858 | ||
c751ce4f | 6859 | /* Switch crtc and encoder back off if necessary */ |
24218aac DV |
6860 | if (old->dpms_mode != DRM_MODE_DPMS_ON) |
6861 | connector->funcs->dpms(connector, old->dpms_mode); | |
7b24056b DV |
6862 | |
6863 | mutex_unlock(&crtc->mutex); | |
79e53945 JB |
6864 | } |
6865 | ||
6866 | /* Returns the clock of the currently programmed mode of the given pipe. */ | |
6867 | static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc) | |
6868 | { | |
6869 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6870 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6871 | int pipe = intel_crtc->pipe; | |
548f245b | 6872 | u32 dpll = I915_READ(DPLL(pipe)); |
79e53945 JB |
6873 | u32 fp; |
6874 | intel_clock_t clock; | |
6875 | ||
6876 | if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) | |
39adb7a5 | 6877 | fp = I915_READ(FP0(pipe)); |
79e53945 | 6878 | else |
39adb7a5 | 6879 | fp = I915_READ(FP1(pipe)); |
79e53945 JB |
6880 | |
6881 | clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; | |
f2b115e6 AJ |
6882 | if (IS_PINEVIEW(dev)) { |
6883 | clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; | |
6884 | clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
2177832f SL |
6885 | } else { |
6886 | clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; | |
6887 | clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
6888 | } | |
6889 | ||
a6c45cf0 | 6890 | if (!IS_GEN2(dev)) { |
f2b115e6 AJ |
6891 | if (IS_PINEVIEW(dev)) |
6892 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >> | |
6893 | DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW); | |
2177832f SL |
6894 | else |
6895 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> | |
79e53945 JB |
6896 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
6897 | ||
6898 | switch (dpll & DPLL_MODE_MASK) { | |
6899 | case DPLLB_MODE_DAC_SERIAL: | |
6900 | clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? | |
6901 | 5 : 10; | |
6902 | break; | |
6903 | case DPLLB_MODE_LVDS: | |
6904 | clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? | |
6905 | 7 : 14; | |
6906 | break; | |
6907 | default: | |
28c97730 | 6908 | DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed " |
79e53945 JB |
6909 | "mode\n", (int)(dpll & DPLL_MODE_MASK)); |
6910 | return 0; | |
6911 | } | |
6912 | ||
6913 | /* XXX: Handle the 100Mhz refclk */ | |
2177832f | 6914 | intel_clock(dev, 96000, &clock); |
79e53945 JB |
6915 | } else { |
6916 | bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN); | |
6917 | ||
6918 | if (is_lvds) { | |
6919 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> | |
6920 | DPLL_FPA01_P1_POST_DIV_SHIFT); | |
6921 | clock.p2 = 14; | |
6922 | ||
6923 | if ((dpll & PLL_REF_INPUT_MASK) == | |
6924 | PLLB_REF_INPUT_SPREADSPECTRUMIN) { | |
6925 | /* XXX: might not be 66MHz */ | |
2177832f | 6926 | intel_clock(dev, 66000, &clock); |
79e53945 | 6927 | } else |
2177832f | 6928 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
6929 | } else { |
6930 | if (dpll & PLL_P1_DIVIDE_BY_TWO) | |
6931 | clock.p1 = 2; | |
6932 | else { | |
6933 | clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> | |
6934 | DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; | |
6935 | } | |
6936 | if (dpll & PLL_P2_DIVIDE_BY_4) | |
6937 | clock.p2 = 4; | |
6938 | else | |
6939 | clock.p2 = 2; | |
6940 | ||
2177832f | 6941 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
6942 | } |
6943 | } | |
6944 | ||
6945 | /* XXX: It would be nice to validate the clocks, but we can't reuse | |
6946 | * i830PllIsValid() because it relies on the xf86_config connector | |
6947 | * configuration being accurate, which it isn't necessarily. | |
6948 | */ | |
6949 | ||
6950 | return clock.dot; | |
6951 | } | |
6952 | ||
6953 | /** Returns the currently programmed mode of the given pipe. */ | |
6954 | struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, | |
6955 | struct drm_crtc *crtc) | |
6956 | { | |
548f245b | 6957 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 | 6958 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
3b117c8f | 6959 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
79e53945 | 6960 | struct drm_display_mode *mode; |
fe2b8f9d PZ |
6961 | int htot = I915_READ(HTOTAL(cpu_transcoder)); |
6962 | int hsync = I915_READ(HSYNC(cpu_transcoder)); | |
6963 | int vtot = I915_READ(VTOTAL(cpu_transcoder)); | |
6964 | int vsync = I915_READ(VSYNC(cpu_transcoder)); | |
79e53945 JB |
6965 | |
6966 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); | |
6967 | if (!mode) | |
6968 | return NULL; | |
6969 | ||
6970 | mode->clock = intel_crtc_clock_get(dev, crtc); | |
6971 | mode->hdisplay = (htot & 0xffff) + 1; | |
6972 | mode->htotal = ((htot & 0xffff0000) >> 16) + 1; | |
6973 | mode->hsync_start = (hsync & 0xffff) + 1; | |
6974 | mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; | |
6975 | mode->vdisplay = (vtot & 0xffff) + 1; | |
6976 | mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; | |
6977 | mode->vsync_start = (vsync & 0xffff) + 1; | |
6978 | mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; | |
6979 | ||
6980 | drm_mode_set_name(mode); | |
79e53945 JB |
6981 | |
6982 | return mode; | |
6983 | } | |
6984 | ||
3dec0095 | 6985 | static void intel_increase_pllclock(struct drm_crtc *crtc) |
652c393a JB |
6986 | { |
6987 | struct drm_device *dev = crtc->dev; | |
6988 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6989 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6990 | int pipe = intel_crtc->pipe; | |
dbdc6479 JB |
6991 | int dpll_reg = DPLL(pipe); |
6992 | int dpll; | |
652c393a | 6993 | |
bad720ff | 6994 | if (HAS_PCH_SPLIT(dev)) |
652c393a JB |
6995 | return; |
6996 | ||
6997 | if (!dev_priv->lvds_downclock_avail) | |
6998 | return; | |
6999 | ||
dbdc6479 | 7000 | dpll = I915_READ(dpll_reg); |
652c393a | 7001 | if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) { |
44d98a61 | 7002 | DRM_DEBUG_DRIVER("upclocking LVDS\n"); |
652c393a | 7003 | |
8ac5a6d5 | 7004 | assert_panel_unlocked(dev_priv, pipe); |
652c393a JB |
7005 | |
7006 | dpll &= ~DISPLAY_RATE_SELECT_FPA1; | |
7007 | I915_WRITE(dpll_reg, dpll); | |
9d0498a2 | 7008 | intel_wait_for_vblank(dev, pipe); |
dbdc6479 | 7009 | |
652c393a JB |
7010 | dpll = I915_READ(dpll_reg); |
7011 | if (dpll & DISPLAY_RATE_SELECT_FPA1) | |
44d98a61 | 7012 | DRM_DEBUG_DRIVER("failed to upclock LVDS!\n"); |
652c393a | 7013 | } |
652c393a JB |
7014 | } |
7015 | ||
7016 | static void intel_decrease_pllclock(struct drm_crtc *crtc) | |
7017 | { | |
7018 | struct drm_device *dev = crtc->dev; | |
7019 | drm_i915_private_t *dev_priv = dev->dev_private; | |
7020 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
652c393a | 7021 | |
bad720ff | 7022 | if (HAS_PCH_SPLIT(dev)) |
652c393a JB |
7023 | return; |
7024 | ||
7025 | if (!dev_priv->lvds_downclock_avail) | |
7026 | return; | |
7027 | ||
7028 | /* | |
7029 | * Since this is called by a timer, we should never get here in | |
7030 | * the manual case. | |
7031 | */ | |
7032 | if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) { | |
dc257cf1 DV |
7033 | int pipe = intel_crtc->pipe; |
7034 | int dpll_reg = DPLL(pipe); | |
7035 | int dpll; | |
f6e5b160 | 7036 | |
44d98a61 | 7037 | DRM_DEBUG_DRIVER("downclocking LVDS\n"); |
652c393a | 7038 | |
8ac5a6d5 | 7039 | assert_panel_unlocked(dev_priv, pipe); |
652c393a | 7040 | |
dc257cf1 | 7041 | dpll = I915_READ(dpll_reg); |
652c393a JB |
7042 | dpll |= DISPLAY_RATE_SELECT_FPA1; |
7043 | I915_WRITE(dpll_reg, dpll); | |
9d0498a2 | 7044 | intel_wait_for_vblank(dev, pipe); |
652c393a JB |
7045 | dpll = I915_READ(dpll_reg); |
7046 | if (!(dpll & DISPLAY_RATE_SELECT_FPA1)) | |
44d98a61 | 7047 | DRM_DEBUG_DRIVER("failed to downclock LVDS!\n"); |
652c393a JB |
7048 | } |
7049 | ||
7050 | } | |
7051 | ||
f047e395 CW |
7052 | void intel_mark_busy(struct drm_device *dev) |
7053 | { | |
f047e395 CW |
7054 | i915_update_gfx_val(dev->dev_private); |
7055 | } | |
7056 | ||
7057 | void intel_mark_idle(struct drm_device *dev) | |
652c393a | 7058 | { |
652c393a | 7059 | struct drm_crtc *crtc; |
652c393a JB |
7060 | |
7061 | if (!i915_powersave) | |
7062 | return; | |
7063 | ||
652c393a | 7064 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
652c393a JB |
7065 | if (!crtc->fb) |
7066 | continue; | |
7067 | ||
725a5b54 | 7068 | intel_decrease_pllclock(crtc); |
652c393a | 7069 | } |
652c393a JB |
7070 | } |
7071 | ||
725a5b54 | 7072 | void intel_mark_fb_busy(struct drm_i915_gem_object *obj) |
652c393a | 7073 | { |
f047e395 CW |
7074 | struct drm_device *dev = obj->base.dev; |
7075 | struct drm_crtc *crtc; | |
652c393a | 7076 | |
f047e395 | 7077 | if (!i915_powersave) |
acb87dfb CW |
7078 | return; |
7079 | ||
652c393a JB |
7080 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
7081 | if (!crtc->fb) | |
7082 | continue; | |
7083 | ||
f047e395 | 7084 | if (to_intel_framebuffer(crtc->fb)->obj == obj) |
725a5b54 | 7085 | intel_increase_pllclock(crtc); |
652c393a JB |
7086 | } |
7087 | } | |
7088 | ||
79e53945 JB |
7089 | static void intel_crtc_destroy(struct drm_crtc *crtc) |
7090 | { | |
7091 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
67e77c5a DV |
7092 | struct drm_device *dev = crtc->dev; |
7093 | struct intel_unpin_work *work; | |
7094 | unsigned long flags; | |
7095 | ||
7096 | spin_lock_irqsave(&dev->event_lock, flags); | |
7097 | work = intel_crtc->unpin_work; | |
7098 | intel_crtc->unpin_work = NULL; | |
7099 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
7100 | ||
7101 | if (work) { | |
7102 | cancel_work_sync(&work->work); | |
7103 | kfree(work); | |
7104 | } | |
79e53945 | 7105 | |
40ccc72b MK |
7106 | intel_crtc_cursor_set(crtc, NULL, 0, 0, 0); |
7107 | ||
79e53945 | 7108 | drm_crtc_cleanup(crtc); |
67e77c5a | 7109 | |
79e53945 JB |
7110 | kfree(intel_crtc); |
7111 | } | |
7112 | ||
6b95a207 KH |
7113 | static void intel_unpin_work_fn(struct work_struct *__work) |
7114 | { | |
7115 | struct intel_unpin_work *work = | |
7116 | container_of(__work, struct intel_unpin_work, work); | |
b4a98e57 | 7117 | struct drm_device *dev = work->crtc->dev; |
6b95a207 | 7118 | |
b4a98e57 | 7119 | mutex_lock(&dev->struct_mutex); |
1690e1eb | 7120 | intel_unpin_fb_obj(work->old_fb_obj); |
05394f39 CW |
7121 | drm_gem_object_unreference(&work->pending_flip_obj->base); |
7122 | drm_gem_object_unreference(&work->old_fb_obj->base); | |
d9e86c0e | 7123 | |
b4a98e57 CW |
7124 | intel_update_fbc(dev); |
7125 | mutex_unlock(&dev->struct_mutex); | |
7126 | ||
7127 | BUG_ON(atomic_read(&to_intel_crtc(work->crtc)->unpin_work_count) == 0); | |
7128 | atomic_dec(&to_intel_crtc(work->crtc)->unpin_work_count); | |
7129 | ||
6b95a207 KH |
7130 | kfree(work); |
7131 | } | |
7132 | ||
1afe3e9d | 7133 | static void do_intel_finish_page_flip(struct drm_device *dev, |
49b14a5c | 7134 | struct drm_crtc *crtc) |
6b95a207 KH |
7135 | { |
7136 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6b95a207 KH |
7137 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
7138 | struct intel_unpin_work *work; | |
6b95a207 KH |
7139 | unsigned long flags; |
7140 | ||
7141 | /* Ignore early vblank irqs */ | |
7142 | if (intel_crtc == NULL) | |
7143 | return; | |
7144 | ||
7145 | spin_lock_irqsave(&dev->event_lock, flags); | |
7146 | work = intel_crtc->unpin_work; | |
e7d841ca CW |
7147 | |
7148 | /* Ensure we don't miss a work->pending update ... */ | |
7149 | smp_rmb(); | |
7150 | ||
7151 | if (work == NULL || atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) { | |
6b95a207 KH |
7152 | spin_unlock_irqrestore(&dev->event_lock, flags); |
7153 | return; | |
7154 | } | |
7155 | ||
e7d841ca CW |
7156 | /* and that the unpin work is consistent wrt ->pending. */ |
7157 | smp_rmb(); | |
7158 | ||
6b95a207 | 7159 | intel_crtc->unpin_work = NULL; |
6b95a207 | 7160 | |
45a066eb RC |
7161 | if (work->event) |
7162 | drm_send_vblank_event(dev, intel_crtc->pipe, work->event); | |
6b95a207 | 7163 | |
0af7e4df MK |
7164 | drm_vblank_put(dev, intel_crtc->pipe); |
7165 | ||
6b95a207 KH |
7166 | spin_unlock_irqrestore(&dev->event_lock, flags); |
7167 | ||
2c10d571 | 7168 | wake_up_all(&dev_priv->pending_flip_queue); |
b4a98e57 CW |
7169 | |
7170 | queue_work(dev_priv->wq, &work->work); | |
e5510fac JB |
7171 | |
7172 | trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj); | |
6b95a207 KH |
7173 | } |
7174 | ||
1afe3e9d JB |
7175 | void intel_finish_page_flip(struct drm_device *dev, int pipe) |
7176 | { | |
7177 | drm_i915_private_t *dev_priv = dev->dev_private; | |
7178 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
7179 | ||
49b14a5c | 7180 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
7181 | } |
7182 | ||
7183 | void intel_finish_page_flip_plane(struct drm_device *dev, int plane) | |
7184 | { | |
7185 | drm_i915_private_t *dev_priv = dev->dev_private; | |
7186 | struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane]; | |
7187 | ||
49b14a5c | 7188 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
7189 | } |
7190 | ||
6b95a207 KH |
7191 | void intel_prepare_page_flip(struct drm_device *dev, int plane) |
7192 | { | |
7193 | drm_i915_private_t *dev_priv = dev->dev_private; | |
7194 | struct intel_crtc *intel_crtc = | |
7195 | to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]); | |
7196 | unsigned long flags; | |
7197 | ||
e7d841ca CW |
7198 | /* NB: An MMIO update of the plane base pointer will also |
7199 | * generate a page-flip completion irq, i.e. every modeset | |
7200 | * is also accompanied by a spurious intel_prepare_page_flip(). | |
7201 | */ | |
6b95a207 | 7202 | spin_lock_irqsave(&dev->event_lock, flags); |
e7d841ca CW |
7203 | if (intel_crtc->unpin_work) |
7204 | atomic_inc_not_zero(&intel_crtc->unpin_work->pending); | |
6b95a207 KH |
7205 | spin_unlock_irqrestore(&dev->event_lock, flags); |
7206 | } | |
7207 | ||
e7d841ca CW |
7208 | inline static void intel_mark_page_flip_active(struct intel_crtc *intel_crtc) |
7209 | { | |
7210 | /* Ensure that the work item is consistent when activating it ... */ | |
7211 | smp_wmb(); | |
7212 | atomic_set(&intel_crtc->unpin_work->pending, INTEL_FLIP_PENDING); | |
7213 | /* and that it is marked active as soon as the irq could fire. */ | |
7214 | smp_wmb(); | |
7215 | } | |
7216 | ||
8c9f3aaf JB |
7217 | static int intel_gen2_queue_flip(struct drm_device *dev, |
7218 | struct drm_crtc *crtc, | |
7219 | struct drm_framebuffer *fb, | |
7220 | struct drm_i915_gem_object *obj) | |
7221 | { | |
7222 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7223 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
8c9f3aaf | 7224 | u32 flip_mask; |
6d90c952 | 7225 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
7226 | int ret; |
7227 | ||
6d90c952 | 7228 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 7229 | if (ret) |
83d4092b | 7230 | goto err; |
8c9f3aaf | 7231 | |
6d90c952 | 7232 | ret = intel_ring_begin(ring, 6); |
8c9f3aaf | 7233 | if (ret) |
83d4092b | 7234 | goto err_unpin; |
8c9f3aaf JB |
7235 | |
7236 | /* Can't queue multiple flips, so wait for the previous | |
7237 | * one to finish before executing the next. | |
7238 | */ | |
7239 | if (intel_crtc->plane) | |
7240 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
7241 | else | |
7242 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
7243 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
7244 | intel_ring_emit(ring, MI_NOOP); | |
7245 | intel_ring_emit(ring, MI_DISPLAY_FLIP | | |
7246 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
7247 | intel_ring_emit(ring, fb->pitches[0]); | |
e506a0c6 | 7248 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
6d90c952 | 7249 | intel_ring_emit(ring, 0); /* aux display base address, unused */ |
e7d841ca CW |
7250 | |
7251 | intel_mark_page_flip_active(intel_crtc); | |
6d90c952 | 7252 | intel_ring_advance(ring); |
83d4092b CW |
7253 | return 0; |
7254 | ||
7255 | err_unpin: | |
7256 | intel_unpin_fb_obj(obj); | |
7257 | err: | |
8c9f3aaf JB |
7258 | return ret; |
7259 | } | |
7260 | ||
7261 | static int intel_gen3_queue_flip(struct drm_device *dev, | |
7262 | struct drm_crtc *crtc, | |
7263 | struct drm_framebuffer *fb, | |
7264 | struct drm_i915_gem_object *obj) | |
7265 | { | |
7266 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7267 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
8c9f3aaf | 7268 | u32 flip_mask; |
6d90c952 | 7269 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
7270 | int ret; |
7271 | ||
6d90c952 | 7272 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 7273 | if (ret) |
83d4092b | 7274 | goto err; |
8c9f3aaf | 7275 | |
6d90c952 | 7276 | ret = intel_ring_begin(ring, 6); |
8c9f3aaf | 7277 | if (ret) |
83d4092b | 7278 | goto err_unpin; |
8c9f3aaf JB |
7279 | |
7280 | if (intel_crtc->plane) | |
7281 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
7282 | else | |
7283 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
7284 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
7285 | intel_ring_emit(ring, MI_NOOP); | |
7286 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | | |
7287 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
7288 | intel_ring_emit(ring, fb->pitches[0]); | |
e506a0c6 | 7289 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
6d90c952 DV |
7290 | intel_ring_emit(ring, MI_NOOP); |
7291 | ||
e7d841ca | 7292 | intel_mark_page_flip_active(intel_crtc); |
6d90c952 | 7293 | intel_ring_advance(ring); |
83d4092b CW |
7294 | return 0; |
7295 | ||
7296 | err_unpin: | |
7297 | intel_unpin_fb_obj(obj); | |
7298 | err: | |
8c9f3aaf JB |
7299 | return ret; |
7300 | } | |
7301 | ||
7302 | static int intel_gen4_queue_flip(struct drm_device *dev, | |
7303 | struct drm_crtc *crtc, | |
7304 | struct drm_framebuffer *fb, | |
7305 | struct drm_i915_gem_object *obj) | |
7306 | { | |
7307 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7308 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
7309 | uint32_t pf, pipesrc; | |
6d90c952 | 7310 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
7311 | int ret; |
7312 | ||
6d90c952 | 7313 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 7314 | if (ret) |
83d4092b | 7315 | goto err; |
8c9f3aaf | 7316 | |
6d90c952 | 7317 | ret = intel_ring_begin(ring, 4); |
8c9f3aaf | 7318 | if (ret) |
83d4092b | 7319 | goto err_unpin; |
8c9f3aaf JB |
7320 | |
7321 | /* i965+ uses the linear or tiled offsets from the | |
7322 | * Display Registers (which do not change across a page-flip) | |
7323 | * so we need only reprogram the base address. | |
7324 | */ | |
6d90c952 DV |
7325 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
7326 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
7327 | intel_ring_emit(ring, fb->pitches[0]); | |
c2c75131 DV |
7328 | intel_ring_emit(ring, |
7329 | (obj->gtt_offset + intel_crtc->dspaddr_offset) | | |
7330 | obj->tiling_mode); | |
8c9f3aaf JB |
7331 | |
7332 | /* XXX Enabling the panel-fitter across page-flip is so far | |
7333 | * untested on non-native modes, so ignore it for now. | |
7334 | * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE; | |
7335 | */ | |
7336 | pf = 0; | |
7337 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; | |
6d90c952 | 7338 | intel_ring_emit(ring, pf | pipesrc); |
e7d841ca CW |
7339 | |
7340 | intel_mark_page_flip_active(intel_crtc); | |
6d90c952 | 7341 | intel_ring_advance(ring); |
83d4092b CW |
7342 | return 0; |
7343 | ||
7344 | err_unpin: | |
7345 | intel_unpin_fb_obj(obj); | |
7346 | err: | |
8c9f3aaf JB |
7347 | return ret; |
7348 | } | |
7349 | ||
7350 | static int intel_gen6_queue_flip(struct drm_device *dev, | |
7351 | struct drm_crtc *crtc, | |
7352 | struct drm_framebuffer *fb, | |
7353 | struct drm_i915_gem_object *obj) | |
7354 | { | |
7355 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7356 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6d90c952 | 7357 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
7358 | uint32_t pf, pipesrc; |
7359 | int ret; | |
7360 | ||
6d90c952 | 7361 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 7362 | if (ret) |
83d4092b | 7363 | goto err; |
8c9f3aaf | 7364 | |
6d90c952 | 7365 | ret = intel_ring_begin(ring, 4); |
8c9f3aaf | 7366 | if (ret) |
83d4092b | 7367 | goto err_unpin; |
8c9f3aaf | 7368 | |
6d90c952 DV |
7369 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
7370 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
7371 | intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode); | |
c2c75131 | 7372 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
8c9f3aaf | 7373 | |
dc257cf1 DV |
7374 | /* Contrary to the suggestions in the documentation, |
7375 | * "Enable Panel Fitter" does not seem to be required when page | |
7376 | * flipping with a non-native mode, and worse causes a normal | |
7377 | * modeset to fail. | |
7378 | * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE; | |
7379 | */ | |
7380 | pf = 0; | |
8c9f3aaf | 7381 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; |
6d90c952 | 7382 | intel_ring_emit(ring, pf | pipesrc); |
e7d841ca CW |
7383 | |
7384 | intel_mark_page_flip_active(intel_crtc); | |
6d90c952 | 7385 | intel_ring_advance(ring); |
83d4092b CW |
7386 | return 0; |
7387 | ||
7388 | err_unpin: | |
7389 | intel_unpin_fb_obj(obj); | |
7390 | err: | |
8c9f3aaf JB |
7391 | return ret; |
7392 | } | |
7393 | ||
7c9017e5 JB |
7394 | /* |
7395 | * On gen7 we currently use the blit ring because (in early silicon at least) | |
7396 | * the render ring doesn't give us interrpts for page flip completion, which | |
7397 | * means clients will hang after the first flip is queued. Fortunately the | |
7398 | * blit ring generates interrupts properly, so use it instead. | |
7399 | */ | |
7400 | static int intel_gen7_queue_flip(struct drm_device *dev, | |
7401 | struct drm_crtc *crtc, | |
7402 | struct drm_framebuffer *fb, | |
7403 | struct drm_i915_gem_object *obj) | |
7404 | { | |
7405 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7406 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
7407 | struct intel_ring_buffer *ring = &dev_priv->ring[BCS]; | |
cb05d8de | 7408 | uint32_t plane_bit = 0; |
7c9017e5 JB |
7409 | int ret; |
7410 | ||
7411 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); | |
7412 | if (ret) | |
83d4092b | 7413 | goto err; |
7c9017e5 | 7414 | |
cb05d8de DV |
7415 | switch(intel_crtc->plane) { |
7416 | case PLANE_A: | |
7417 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A; | |
7418 | break; | |
7419 | case PLANE_B: | |
7420 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B; | |
7421 | break; | |
7422 | case PLANE_C: | |
7423 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C; | |
7424 | break; | |
7425 | default: | |
7426 | WARN_ONCE(1, "unknown plane in flip command\n"); | |
7427 | ret = -ENODEV; | |
ab3951eb | 7428 | goto err_unpin; |
cb05d8de DV |
7429 | } |
7430 | ||
7c9017e5 JB |
7431 | ret = intel_ring_begin(ring, 4); |
7432 | if (ret) | |
83d4092b | 7433 | goto err_unpin; |
7c9017e5 | 7434 | |
cb05d8de | 7435 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit); |
01f2c773 | 7436 | intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode)); |
c2c75131 | 7437 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
7c9017e5 | 7438 | intel_ring_emit(ring, (MI_NOOP)); |
e7d841ca CW |
7439 | |
7440 | intel_mark_page_flip_active(intel_crtc); | |
7c9017e5 | 7441 | intel_ring_advance(ring); |
83d4092b CW |
7442 | return 0; |
7443 | ||
7444 | err_unpin: | |
7445 | intel_unpin_fb_obj(obj); | |
7446 | err: | |
7c9017e5 JB |
7447 | return ret; |
7448 | } | |
7449 | ||
8c9f3aaf JB |
7450 | static int intel_default_queue_flip(struct drm_device *dev, |
7451 | struct drm_crtc *crtc, | |
7452 | struct drm_framebuffer *fb, | |
7453 | struct drm_i915_gem_object *obj) | |
7454 | { | |
7455 | return -ENODEV; | |
7456 | } | |
7457 | ||
6b95a207 KH |
7458 | static int intel_crtc_page_flip(struct drm_crtc *crtc, |
7459 | struct drm_framebuffer *fb, | |
7460 | struct drm_pending_vblank_event *event) | |
7461 | { | |
7462 | struct drm_device *dev = crtc->dev; | |
7463 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4a35f83b VS |
7464 | struct drm_framebuffer *old_fb = crtc->fb; |
7465 | struct drm_i915_gem_object *obj = to_intel_framebuffer(fb)->obj; | |
6b95a207 KH |
7466 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
7467 | struct intel_unpin_work *work; | |
8c9f3aaf | 7468 | unsigned long flags; |
52e68630 | 7469 | int ret; |
6b95a207 | 7470 | |
e6a595d2 VS |
7471 | /* Can't change pixel format via MI display flips. */ |
7472 | if (fb->pixel_format != crtc->fb->pixel_format) | |
7473 | return -EINVAL; | |
7474 | ||
7475 | /* | |
7476 | * TILEOFF/LINOFF registers can't be changed via MI display flips. | |
7477 | * Note that pitch changes could also affect these register. | |
7478 | */ | |
7479 | if (INTEL_INFO(dev)->gen > 3 && | |
7480 | (fb->offsets[0] != crtc->fb->offsets[0] || | |
7481 | fb->pitches[0] != crtc->fb->pitches[0])) | |
7482 | return -EINVAL; | |
7483 | ||
6b95a207 KH |
7484 | work = kzalloc(sizeof *work, GFP_KERNEL); |
7485 | if (work == NULL) | |
7486 | return -ENOMEM; | |
7487 | ||
6b95a207 | 7488 | work->event = event; |
b4a98e57 | 7489 | work->crtc = crtc; |
4a35f83b | 7490 | work->old_fb_obj = to_intel_framebuffer(old_fb)->obj; |
6b95a207 KH |
7491 | INIT_WORK(&work->work, intel_unpin_work_fn); |
7492 | ||
7317c75e JB |
7493 | ret = drm_vblank_get(dev, intel_crtc->pipe); |
7494 | if (ret) | |
7495 | goto free_work; | |
7496 | ||
6b95a207 KH |
7497 | /* We borrow the event spin lock for protecting unpin_work */ |
7498 | spin_lock_irqsave(&dev->event_lock, flags); | |
7499 | if (intel_crtc->unpin_work) { | |
7500 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
7501 | kfree(work); | |
7317c75e | 7502 | drm_vblank_put(dev, intel_crtc->pipe); |
468f0b44 CW |
7503 | |
7504 | DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); | |
6b95a207 KH |
7505 | return -EBUSY; |
7506 | } | |
7507 | intel_crtc->unpin_work = work; | |
7508 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
7509 | ||
b4a98e57 CW |
7510 | if (atomic_read(&intel_crtc->unpin_work_count) >= 2) |
7511 | flush_workqueue(dev_priv->wq); | |
7512 | ||
79158103 CW |
7513 | ret = i915_mutex_lock_interruptible(dev); |
7514 | if (ret) | |
7515 | goto cleanup; | |
6b95a207 | 7516 | |
75dfca80 | 7517 | /* Reference the objects for the scheduled work. */ |
05394f39 CW |
7518 | drm_gem_object_reference(&work->old_fb_obj->base); |
7519 | drm_gem_object_reference(&obj->base); | |
6b95a207 KH |
7520 | |
7521 | crtc->fb = fb; | |
96b099fd | 7522 | |
e1f99ce6 | 7523 | work->pending_flip_obj = obj; |
e1f99ce6 | 7524 | |
4e5359cd SF |
7525 | work->enable_stall_check = true; |
7526 | ||
b4a98e57 | 7527 | atomic_inc(&intel_crtc->unpin_work_count); |
10d83730 | 7528 | intel_crtc->reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter); |
e1f99ce6 | 7529 | |
8c9f3aaf JB |
7530 | ret = dev_priv->display.queue_flip(dev, crtc, fb, obj); |
7531 | if (ret) | |
7532 | goto cleanup_pending; | |
6b95a207 | 7533 | |
7782de3b | 7534 | intel_disable_fbc(dev); |
f047e395 | 7535 | intel_mark_fb_busy(obj); |
6b95a207 KH |
7536 | mutex_unlock(&dev->struct_mutex); |
7537 | ||
e5510fac JB |
7538 | trace_i915_flip_request(intel_crtc->plane, obj); |
7539 | ||
6b95a207 | 7540 | return 0; |
96b099fd | 7541 | |
8c9f3aaf | 7542 | cleanup_pending: |
b4a98e57 | 7543 | atomic_dec(&intel_crtc->unpin_work_count); |
4a35f83b | 7544 | crtc->fb = old_fb; |
05394f39 CW |
7545 | drm_gem_object_unreference(&work->old_fb_obj->base); |
7546 | drm_gem_object_unreference(&obj->base); | |
96b099fd CW |
7547 | mutex_unlock(&dev->struct_mutex); |
7548 | ||
79158103 | 7549 | cleanup: |
96b099fd CW |
7550 | spin_lock_irqsave(&dev->event_lock, flags); |
7551 | intel_crtc->unpin_work = NULL; | |
7552 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
7553 | ||
7317c75e JB |
7554 | drm_vblank_put(dev, intel_crtc->pipe); |
7555 | free_work: | |
96b099fd CW |
7556 | kfree(work); |
7557 | ||
7558 | return ret; | |
6b95a207 KH |
7559 | } |
7560 | ||
f6e5b160 | 7561 | static struct drm_crtc_helper_funcs intel_helper_funcs = { |
f6e5b160 CW |
7562 | .mode_set_base_atomic = intel_pipe_set_base_atomic, |
7563 | .load_lut = intel_crtc_load_lut, | |
f6e5b160 CW |
7564 | }; |
7565 | ||
6ed0f796 | 7566 | bool intel_encoder_check_is_cloned(struct intel_encoder *encoder) |
47f1c6c9 | 7567 | { |
6ed0f796 DV |
7568 | struct intel_encoder *other_encoder; |
7569 | struct drm_crtc *crtc = &encoder->new_crtc->base; | |
47f1c6c9 | 7570 | |
6ed0f796 DV |
7571 | if (WARN_ON(!crtc)) |
7572 | return false; | |
7573 | ||
7574 | list_for_each_entry(other_encoder, | |
7575 | &crtc->dev->mode_config.encoder_list, | |
7576 | base.head) { | |
7577 | ||
7578 | if (&other_encoder->new_crtc->base != crtc || | |
7579 | encoder == other_encoder) | |
7580 | continue; | |
7581 | else | |
7582 | return true; | |
f47166d2 CW |
7583 | } |
7584 | ||
6ed0f796 DV |
7585 | return false; |
7586 | } | |
47f1c6c9 | 7587 | |
50f56119 DV |
7588 | static bool intel_encoder_crtc_ok(struct drm_encoder *encoder, |
7589 | struct drm_crtc *crtc) | |
7590 | { | |
7591 | struct drm_device *dev; | |
7592 | struct drm_crtc *tmp; | |
7593 | int crtc_mask = 1; | |
47f1c6c9 | 7594 | |
50f56119 | 7595 | WARN(!crtc, "checking null crtc?\n"); |
47f1c6c9 | 7596 | |
50f56119 | 7597 | dev = crtc->dev; |
47f1c6c9 | 7598 | |
50f56119 DV |
7599 | list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) { |
7600 | if (tmp == crtc) | |
7601 | break; | |
7602 | crtc_mask <<= 1; | |
7603 | } | |
47f1c6c9 | 7604 | |
50f56119 DV |
7605 | if (encoder->possible_crtcs & crtc_mask) |
7606 | return true; | |
7607 | return false; | |
47f1c6c9 | 7608 | } |
79e53945 | 7609 | |
9a935856 DV |
7610 | /** |
7611 | * intel_modeset_update_staged_output_state | |
7612 | * | |
7613 | * Updates the staged output configuration state, e.g. after we've read out the | |
7614 | * current hw state. | |
7615 | */ | |
7616 | static void intel_modeset_update_staged_output_state(struct drm_device *dev) | |
f6e5b160 | 7617 | { |
9a935856 DV |
7618 | struct intel_encoder *encoder; |
7619 | struct intel_connector *connector; | |
f6e5b160 | 7620 | |
9a935856 DV |
7621 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
7622 | base.head) { | |
7623 | connector->new_encoder = | |
7624 | to_intel_encoder(connector->base.encoder); | |
7625 | } | |
f6e5b160 | 7626 | |
9a935856 DV |
7627 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
7628 | base.head) { | |
7629 | encoder->new_crtc = | |
7630 | to_intel_crtc(encoder->base.crtc); | |
7631 | } | |
f6e5b160 CW |
7632 | } |
7633 | ||
9a935856 DV |
7634 | /** |
7635 | * intel_modeset_commit_output_state | |
7636 | * | |
7637 | * This function copies the stage display pipe configuration to the real one. | |
7638 | */ | |
7639 | static void intel_modeset_commit_output_state(struct drm_device *dev) | |
7640 | { | |
7641 | struct intel_encoder *encoder; | |
7642 | struct intel_connector *connector; | |
f6e5b160 | 7643 | |
9a935856 DV |
7644 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
7645 | base.head) { | |
7646 | connector->base.encoder = &connector->new_encoder->base; | |
7647 | } | |
f6e5b160 | 7648 | |
9a935856 DV |
7649 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
7650 | base.head) { | |
7651 | encoder->base.crtc = &encoder->new_crtc->base; | |
7652 | } | |
7653 | } | |
7654 | ||
050f7aeb DV |
7655 | static void |
7656 | connected_sink_compute_bpp(struct intel_connector * connector, | |
7657 | struct intel_crtc_config *pipe_config) | |
7658 | { | |
7659 | int bpp = pipe_config->pipe_bpp; | |
7660 | ||
7661 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n", | |
7662 | connector->base.base.id, | |
7663 | drm_get_connector_name(&connector->base)); | |
7664 | ||
7665 | /* Don't use an invalid EDID bpc value */ | |
7666 | if (connector->base.display_info.bpc && | |
7667 | connector->base.display_info.bpc * 3 < bpp) { | |
7668 | DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n", | |
7669 | bpp, connector->base.display_info.bpc*3); | |
7670 | pipe_config->pipe_bpp = connector->base.display_info.bpc*3; | |
7671 | } | |
7672 | ||
7673 | /* Clamp bpp to 8 on screens without EDID 1.4 */ | |
7674 | if (connector->base.display_info.bpc == 0 && bpp > 24) { | |
7675 | DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n", | |
7676 | bpp); | |
7677 | pipe_config->pipe_bpp = 24; | |
7678 | } | |
7679 | } | |
7680 | ||
4e53c2e0 | 7681 | static int |
050f7aeb DV |
7682 | compute_baseline_pipe_bpp(struct intel_crtc *crtc, |
7683 | struct drm_framebuffer *fb, | |
7684 | struct intel_crtc_config *pipe_config) | |
4e53c2e0 | 7685 | { |
050f7aeb DV |
7686 | struct drm_device *dev = crtc->base.dev; |
7687 | struct intel_connector *connector; | |
4e53c2e0 DV |
7688 | int bpp; |
7689 | ||
d42264b1 DV |
7690 | switch (fb->pixel_format) { |
7691 | case DRM_FORMAT_C8: | |
4e53c2e0 DV |
7692 | bpp = 8*3; /* since we go through a colormap */ |
7693 | break; | |
d42264b1 DV |
7694 | case DRM_FORMAT_XRGB1555: |
7695 | case DRM_FORMAT_ARGB1555: | |
7696 | /* checked in intel_framebuffer_init already */ | |
7697 | if (WARN_ON(INTEL_INFO(dev)->gen > 3)) | |
7698 | return -EINVAL; | |
7699 | case DRM_FORMAT_RGB565: | |
4e53c2e0 DV |
7700 | bpp = 6*3; /* min is 18bpp */ |
7701 | break; | |
d42264b1 DV |
7702 | case DRM_FORMAT_XBGR8888: |
7703 | case DRM_FORMAT_ABGR8888: | |
7704 | /* checked in intel_framebuffer_init already */ | |
7705 | if (WARN_ON(INTEL_INFO(dev)->gen < 4)) | |
7706 | return -EINVAL; | |
7707 | case DRM_FORMAT_XRGB8888: | |
7708 | case DRM_FORMAT_ARGB8888: | |
4e53c2e0 DV |
7709 | bpp = 8*3; |
7710 | break; | |
d42264b1 DV |
7711 | case DRM_FORMAT_XRGB2101010: |
7712 | case DRM_FORMAT_ARGB2101010: | |
7713 | case DRM_FORMAT_XBGR2101010: | |
7714 | case DRM_FORMAT_ABGR2101010: | |
7715 | /* checked in intel_framebuffer_init already */ | |
7716 | if (WARN_ON(INTEL_INFO(dev)->gen < 4)) | |
baba133a | 7717 | return -EINVAL; |
4e53c2e0 DV |
7718 | bpp = 10*3; |
7719 | break; | |
baba133a | 7720 | /* TODO: gen4+ supports 16 bpc floating point, too. */ |
4e53c2e0 DV |
7721 | default: |
7722 | DRM_DEBUG_KMS("unsupported depth\n"); | |
7723 | return -EINVAL; | |
7724 | } | |
7725 | ||
4e53c2e0 DV |
7726 | pipe_config->pipe_bpp = bpp; |
7727 | ||
7728 | /* Clamp display bpp to EDID value */ | |
7729 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
050f7aeb | 7730 | base.head) { |
1b829e05 DV |
7731 | if (!connector->new_encoder || |
7732 | connector->new_encoder->new_crtc != crtc) | |
4e53c2e0 DV |
7733 | continue; |
7734 | ||
050f7aeb | 7735 | connected_sink_compute_bpp(connector, pipe_config); |
4e53c2e0 DV |
7736 | } |
7737 | ||
7738 | return bpp; | |
7739 | } | |
7740 | ||
c0b03411 DV |
7741 | static void intel_dump_pipe_config(struct intel_crtc *crtc, |
7742 | struct intel_crtc_config *pipe_config, | |
7743 | const char *context) | |
7744 | { | |
7745 | DRM_DEBUG_KMS("[CRTC:%d]%s config for pipe %c\n", crtc->base.base.id, | |
7746 | context, pipe_name(crtc->pipe)); | |
7747 | ||
7748 | DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config->cpu_transcoder)); | |
7749 | DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n", | |
7750 | pipe_config->pipe_bpp, pipe_config->dither); | |
7751 | DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n", | |
7752 | pipe_config->has_pch_encoder, | |
7753 | pipe_config->fdi_lanes, | |
7754 | pipe_config->fdi_m_n.gmch_m, pipe_config->fdi_m_n.gmch_n, | |
7755 | pipe_config->fdi_m_n.link_m, pipe_config->fdi_m_n.link_n, | |
7756 | pipe_config->fdi_m_n.tu); | |
7757 | DRM_DEBUG_KMS("requested mode:\n"); | |
7758 | drm_mode_debug_printmodeline(&pipe_config->requested_mode); | |
7759 | DRM_DEBUG_KMS("adjusted mode:\n"); | |
7760 | drm_mode_debug_printmodeline(&pipe_config->adjusted_mode); | |
7761 | DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n", | |
7762 | pipe_config->gmch_pfit.control, | |
7763 | pipe_config->gmch_pfit.pgm_ratios, | |
7764 | pipe_config->gmch_pfit.lvds_border_bits); | |
7765 | DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x\n", | |
7766 | pipe_config->pch_pfit.pos, | |
7767 | pipe_config->pch_pfit.size); | |
42db64ef | 7768 | DRM_DEBUG_KMS("ips: %i\n", pipe_config->ips_enabled); |
c0b03411 DV |
7769 | } |
7770 | ||
b8cecdf5 DV |
7771 | static struct intel_crtc_config * |
7772 | intel_modeset_pipe_config(struct drm_crtc *crtc, | |
4e53c2e0 | 7773 | struct drm_framebuffer *fb, |
b8cecdf5 | 7774 | struct drm_display_mode *mode) |
ee7b9f93 | 7775 | { |
7758a113 | 7776 | struct drm_device *dev = crtc->dev; |
7758a113 DV |
7777 | struct drm_encoder_helper_funcs *encoder_funcs; |
7778 | struct intel_encoder *encoder; | |
b8cecdf5 | 7779 | struct intel_crtc_config *pipe_config; |
e29c22c0 DV |
7780 | int plane_bpp, ret = -EINVAL; |
7781 | bool retry = true; | |
ee7b9f93 | 7782 | |
b8cecdf5 DV |
7783 | pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL); |
7784 | if (!pipe_config) | |
7758a113 DV |
7785 | return ERR_PTR(-ENOMEM); |
7786 | ||
b8cecdf5 DV |
7787 | drm_mode_copy(&pipe_config->adjusted_mode, mode); |
7788 | drm_mode_copy(&pipe_config->requested_mode, mode); | |
eccb140b | 7789 | pipe_config->cpu_transcoder = to_intel_crtc(crtc)->pipe; |
b8cecdf5 | 7790 | |
050f7aeb DV |
7791 | /* Compute a starting value for pipe_config->pipe_bpp taking the source |
7792 | * plane pixel format and any sink constraints into account. Returns the | |
7793 | * source plane bpp so that dithering can be selected on mismatches | |
7794 | * after encoders and crtc also have had their say. */ | |
7795 | plane_bpp = compute_baseline_pipe_bpp(to_intel_crtc(crtc), | |
7796 | fb, pipe_config); | |
4e53c2e0 DV |
7797 | if (plane_bpp < 0) |
7798 | goto fail; | |
7799 | ||
e29c22c0 | 7800 | encoder_retry: |
7758a113 DV |
7801 | /* Pass our mode to the connectors and the CRTC to give them a chance to |
7802 | * adjust it according to limitations or connector properties, and also | |
7803 | * a chance to reject the mode entirely. | |
47f1c6c9 | 7804 | */ |
7758a113 DV |
7805 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
7806 | base.head) { | |
47f1c6c9 | 7807 | |
7758a113 DV |
7808 | if (&encoder->new_crtc->base != crtc) |
7809 | continue; | |
7ae89233 DV |
7810 | |
7811 | if (encoder->compute_config) { | |
7812 | if (!(encoder->compute_config(encoder, pipe_config))) { | |
7813 | DRM_DEBUG_KMS("Encoder config failure\n"); | |
7814 | goto fail; | |
7815 | } | |
7816 | ||
7817 | continue; | |
7818 | } | |
7819 | ||
7758a113 | 7820 | encoder_funcs = encoder->base.helper_private; |
b8cecdf5 DV |
7821 | if (!(encoder_funcs->mode_fixup(&encoder->base, |
7822 | &pipe_config->requested_mode, | |
7823 | &pipe_config->adjusted_mode))) { | |
7758a113 DV |
7824 | DRM_DEBUG_KMS("Encoder fixup failed\n"); |
7825 | goto fail; | |
7826 | } | |
ee7b9f93 | 7827 | } |
47f1c6c9 | 7828 | |
e29c22c0 DV |
7829 | ret = intel_crtc_compute_config(crtc, pipe_config); |
7830 | if (ret < 0) { | |
7758a113 DV |
7831 | DRM_DEBUG_KMS("CRTC fixup failed\n"); |
7832 | goto fail; | |
ee7b9f93 | 7833 | } |
e29c22c0 DV |
7834 | |
7835 | if (ret == RETRY) { | |
7836 | if (WARN(!retry, "loop in pipe configuration computation\n")) { | |
7837 | ret = -EINVAL; | |
7838 | goto fail; | |
7839 | } | |
7840 | ||
7841 | DRM_DEBUG_KMS("CRTC bw constrained, retrying\n"); | |
7842 | retry = false; | |
7843 | goto encoder_retry; | |
7844 | } | |
7845 | ||
4e53c2e0 DV |
7846 | pipe_config->dither = pipe_config->pipe_bpp != plane_bpp; |
7847 | DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n", | |
7848 | plane_bpp, pipe_config->pipe_bpp, pipe_config->dither); | |
7849 | ||
b8cecdf5 | 7850 | return pipe_config; |
7758a113 | 7851 | fail: |
b8cecdf5 | 7852 | kfree(pipe_config); |
e29c22c0 | 7853 | return ERR_PTR(ret); |
ee7b9f93 | 7854 | } |
47f1c6c9 | 7855 | |
e2e1ed41 DV |
7856 | /* Computes which crtcs are affected and sets the relevant bits in the mask. For |
7857 | * simplicity we use the crtc's pipe number (because it's easier to obtain). */ | |
7858 | static void | |
7859 | intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes, | |
7860 | unsigned *prepare_pipes, unsigned *disable_pipes) | |
79e53945 JB |
7861 | { |
7862 | struct intel_crtc *intel_crtc; | |
e2e1ed41 DV |
7863 | struct drm_device *dev = crtc->dev; |
7864 | struct intel_encoder *encoder; | |
7865 | struct intel_connector *connector; | |
7866 | struct drm_crtc *tmp_crtc; | |
79e53945 | 7867 | |
e2e1ed41 | 7868 | *disable_pipes = *modeset_pipes = *prepare_pipes = 0; |
79e53945 | 7869 | |
e2e1ed41 DV |
7870 | /* Check which crtcs have changed outputs connected to them, these need |
7871 | * to be part of the prepare_pipes mask. We don't (yet) support global | |
7872 | * modeset across multiple crtcs, so modeset_pipes will only have one | |
7873 | * bit set at most. */ | |
7874 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
7875 | base.head) { | |
7876 | if (connector->base.encoder == &connector->new_encoder->base) | |
7877 | continue; | |
79e53945 | 7878 | |
e2e1ed41 DV |
7879 | if (connector->base.encoder) { |
7880 | tmp_crtc = connector->base.encoder->crtc; | |
7881 | ||
7882 | *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe; | |
7883 | } | |
7884 | ||
7885 | if (connector->new_encoder) | |
7886 | *prepare_pipes |= | |
7887 | 1 << connector->new_encoder->new_crtc->pipe; | |
79e53945 JB |
7888 | } |
7889 | ||
e2e1ed41 DV |
7890 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
7891 | base.head) { | |
7892 | if (encoder->base.crtc == &encoder->new_crtc->base) | |
7893 | continue; | |
7894 | ||
7895 | if (encoder->base.crtc) { | |
7896 | tmp_crtc = encoder->base.crtc; | |
7897 | ||
7898 | *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe; | |
7899 | } | |
7900 | ||
7901 | if (encoder->new_crtc) | |
7902 | *prepare_pipes |= 1 << encoder->new_crtc->pipe; | |
80824003 JB |
7903 | } |
7904 | ||
e2e1ed41 DV |
7905 | /* Check for any pipes that will be fully disabled ... */ |
7906 | list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, | |
7907 | base.head) { | |
7908 | bool used = false; | |
22fd0fab | 7909 | |
e2e1ed41 DV |
7910 | /* Don't try to disable disabled crtcs. */ |
7911 | if (!intel_crtc->base.enabled) | |
7912 | continue; | |
7e7d76c3 | 7913 | |
e2e1ed41 DV |
7914 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
7915 | base.head) { | |
7916 | if (encoder->new_crtc == intel_crtc) | |
7917 | used = true; | |
7918 | } | |
7919 | ||
7920 | if (!used) | |
7921 | *disable_pipes |= 1 << intel_crtc->pipe; | |
7e7d76c3 JB |
7922 | } |
7923 | ||
e2e1ed41 DV |
7924 | |
7925 | /* set_mode is also used to update properties on life display pipes. */ | |
7926 | intel_crtc = to_intel_crtc(crtc); | |
7927 | if (crtc->enabled) | |
7928 | *prepare_pipes |= 1 << intel_crtc->pipe; | |
7929 | ||
b6c5164d DV |
7930 | /* |
7931 | * For simplicity do a full modeset on any pipe where the output routing | |
7932 | * changed. We could be more clever, but that would require us to be | |
7933 | * more careful with calling the relevant encoder->mode_set functions. | |
7934 | */ | |
e2e1ed41 DV |
7935 | if (*prepare_pipes) |
7936 | *modeset_pipes = *prepare_pipes; | |
7937 | ||
7938 | /* ... and mask these out. */ | |
7939 | *modeset_pipes &= ~(*disable_pipes); | |
7940 | *prepare_pipes &= ~(*disable_pipes); | |
b6c5164d DV |
7941 | |
7942 | /* | |
7943 | * HACK: We don't (yet) fully support global modesets. intel_set_config | |
7944 | * obies this rule, but the modeset restore mode of | |
7945 | * intel_modeset_setup_hw_state does not. | |
7946 | */ | |
7947 | *modeset_pipes &= 1 << intel_crtc->pipe; | |
7948 | *prepare_pipes &= 1 << intel_crtc->pipe; | |
e3641d3f DV |
7949 | |
7950 | DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n", | |
7951 | *modeset_pipes, *prepare_pipes, *disable_pipes); | |
47f1c6c9 | 7952 | } |
79e53945 | 7953 | |
ea9d758d | 7954 | static bool intel_crtc_in_use(struct drm_crtc *crtc) |
f6e5b160 | 7955 | { |
ea9d758d | 7956 | struct drm_encoder *encoder; |
f6e5b160 | 7957 | struct drm_device *dev = crtc->dev; |
f6e5b160 | 7958 | |
ea9d758d DV |
7959 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) |
7960 | if (encoder->crtc == crtc) | |
7961 | return true; | |
7962 | ||
7963 | return false; | |
7964 | } | |
7965 | ||
7966 | static void | |
7967 | intel_modeset_update_state(struct drm_device *dev, unsigned prepare_pipes) | |
7968 | { | |
7969 | struct intel_encoder *intel_encoder; | |
7970 | struct intel_crtc *intel_crtc; | |
7971 | struct drm_connector *connector; | |
7972 | ||
7973 | list_for_each_entry(intel_encoder, &dev->mode_config.encoder_list, | |
7974 | base.head) { | |
7975 | if (!intel_encoder->base.crtc) | |
7976 | continue; | |
7977 | ||
7978 | intel_crtc = to_intel_crtc(intel_encoder->base.crtc); | |
7979 | ||
7980 | if (prepare_pipes & (1 << intel_crtc->pipe)) | |
7981 | intel_encoder->connectors_active = false; | |
7982 | } | |
7983 | ||
7984 | intel_modeset_commit_output_state(dev); | |
7985 | ||
7986 | /* Update computed state. */ | |
7987 | list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, | |
7988 | base.head) { | |
7989 | intel_crtc->base.enabled = intel_crtc_in_use(&intel_crtc->base); | |
7990 | } | |
7991 | ||
7992 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
7993 | if (!connector->encoder || !connector->encoder->crtc) | |
7994 | continue; | |
7995 | ||
7996 | intel_crtc = to_intel_crtc(connector->encoder->crtc); | |
7997 | ||
7998 | if (prepare_pipes & (1 << intel_crtc->pipe)) { | |
68d34720 DV |
7999 | struct drm_property *dpms_property = |
8000 | dev->mode_config.dpms_property; | |
8001 | ||
ea9d758d | 8002 | connector->dpms = DRM_MODE_DPMS_ON; |
662595df | 8003 | drm_object_property_set_value(&connector->base, |
68d34720 DV |
8004 | dpms_property, |
8005 | DRM_MODE_DPMS_ON); | |
ea9d758d DV |
8006 | |
8007 | intel_encoder = to_intel_encoder(connector->encoder); | |
8008 | intel_encoder->connectors_active = true; | |
8009 | } | |
8010 | } | |
8011 | ||
8012 | } | |
8013 | ||
25c5b266 DV |
8014 | #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \ |
8015 | list_for_each_entry((intel_crtc), \ | |
8016 | &(dev)->mode_config.crtc_list, \ | |
8017 | base.head) \ | |
0973f18f | 8018 | if (mask & (1 <<(intel_crtc)->pipe)) |
25c5b266 | 8019 | |
0e8ffe1b | 8020 | static bool |
2fa2fe9a DV |
8021 | intel_pipe_config_compare(struct drm_device *dev, |
8022 | struct intel_crtc_config *current_config, | |
0e8ffe1b DV |
8023 | struct intel_crtc_config *pipe_config) |
8024 | { | |
08a24034 DV |
8025 | #define PIPE_CONF_CHECK_I(name) \ |
8026 | if (current_config->name != pipe_config->name) { \ | |
8027 | DRM_ERROR("mismatch in " #name " " \ | |
8028 | "(expected %i, found %i)\n", \ | |
8029 | current_config->name, \ | |
8030 | pipe_config->name); \ | |
8031 | return false; \ | |
88adfff1 DV |
8032 | } |
8033 | ||
1bd1bd80 DV |
8034 | #define PIPE_CONF_CHECK_FLAGS(name, mask) \ |
8035 | if ((current_config->name ^ pipe_config->name) & (mask)) { \ | |
8036 | DRM_ERROR("mismatch in " #name " " \ | |
8037 | "(expected %i, found %i)\n", \ | |
8038 | current_config->name & (mask), \ | |
8039 | pipe_config->name & (mask)); \ | |
8040 | return false; \ | |
8041 | } | |
8042 | ||
eccb140b DV |
8043 | PIPE_CONF_CHECK_I(cpu_transcoder); |
8044 | ||
08a24034 DV |
8045 | PIPE_CONF_CHECK_I(has_pch_encoder); |
8046 | PIPE_CONF_CHECK_I(fdi_lanes); | |
72419203 DV |
8047 | PIPE_CONF_CHECK_I(fdi_m_n.gmch_m); |
8048 | PIPE_CONF_CHECK_I(fdi_m_n.gmch_n); | |
8049 | PIPE_CONF_CHECK_I(fdi_m_n.link_m); | |
8050 | PIPE_CONF_CHECK_I(fdi_m_n.link_n); | |
8051 | PIPE_CONF_CHECK_I(fdi_m_n.tu); | |
08a24034 | 8052 | |
1bd1bd80 DV |
8053 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_hdisplay); |
8054 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_htotal); | |
8055 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_start); | |
8056 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_end); | |
8057 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_start); | |
8058 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_end); | |
8059 | ||
8060 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_vdisplay); | |
8061 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_vtotal); | |
8062 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_start); | |
8063 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_end); | |
8064 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_start); | |
8065 | PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_end); | |
8066 | ||
8067 | PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags, | |
8068 | DRM_MODE_FLAG_INTERLACE); | |
8069 | ||
045ac3b5 JB |
8070 | PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags, |
8071 | DRM_MODE_FLAG_PHSYNC); | |
8072 | PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags, | |
8073 | DRM_MODE_FLAG_NHSYNC); | |
8074 | PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags, | |
8075 | DRM_MODE_FLAG_PVSYNC); | |
8076 | PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags, | |
8077 | DRM_MODE_FLAG_NVSYNC); | |
8078 | ||
1bd1bd80 DV |
8079 | PIPE_CONF_CHECK_I(requested_mode.hdisplay); |
8080 | PIPE_CONF_CHECK_I(requested_mode.vdisplay); | |
8081 | ||
2fa2fe9a DV |
8082 | PIPE_CONF_CHECK_I(gmch_pfit.control); |
8083 | /* pfit ratios are autocomputed by the hw on gen4+ */ | |
8084 | if (INTEL_INFO(dev)->gen < 4) | |
8085 | PIPE_CONF_CHECK_I(gmch_pfit.pgm_ratios); | |
8086 | PIPE_CONF_CHECK_I(gmch_pfit.lvds_border_bits); | |
8087 | PIPE_CONF_CHECK_I(pch_pfit.pos); | |
8088 | PIPE_CONF_CHECK_I(pch_pfit.size); | |
8089 | ||
42db64ef PZ |
8090 | PIPE_CONF_CHECK_I(ips_enabled); |
8091 | ||
08a24034 | 8092 | #undef PIPE_CONF_CHECK_I |
1bd1bd80 | 8093 | #undef PIPE_CONF_CHECK_FLAGS |
627eb5a3 | 8094 | |
0e8ffe1b DV |
8095 | return true; |
8096 | } | |
8097 | ||
b980514c | 8098 | void |
8af6cf88 DV |
8099 | intel_modeset_check_state(struct drm_device *dev) |
8100 | { | |
0e8ffe1b | 8101 | drm_i915_private_t *dev_priv = dev->dev_private; |
8af6cf88 DV |
8102 | struct intel_crtc *crtc; |
8103 | struct intel_encoder *encoder; | |
8104 | struct intel_connector *connector; | |
0e8ffe1b | 8105 | struct intel_crtc_config pipe_config; |
8af6cf88 DV |
8106 | |
8107 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
8108 | base.head) { | |
8109 | /* This also checks the encoder/connector hw state with the | |
8110 | * ->get_hw_state callbacks. */ | |
8111 | intel_connector_check_state(connector); | |
8112 | ||
8113 | WARN(&connector->new_encoder->base != connector->base.encoder, | |
8114 | "connector's staged encoder doesn't match current encoder\n"); | |
8115 | } | |
8116 | ||
8117 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
8118 | base.head) { | |
8119 | bool enabled = false; | |
8120 | bool active = false; | |
8121 | enum pipe pipe, tracked_pipe; | |
8122 | ||
8123 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", | |
8124 | encoder->base.base.id, | |
8125 | drm_get_encoder_name(&encoder->base)); | |
8126 | ||
8127 | WARN(&encoder->new_crtc->base != encoder->base.crtc, | |
8128 | "encoder's stage crtc doesn't match current crtc\n"); | |
8129 | WARN(encoder->connectors_active && !encoder->base.crtc, | |
8130 | "encoder's active_connectors set, but no crtc\n"); | |
8131 | ||
8132 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
8133 | base.head) { | |
8134 | if (connector->base.encoder != &encoder->base) | |
8135 | continue; | |
8136 | enabled = true; | |
8137 | if (connector->base.dpms != DRM_MODE_DPMS_OFF) | |
8138 | active = true; | |
8139 | } | |
8140 | WARN(!!encoder->base.crtc != enabled, | |
8141 | "encoder's enabled state mismatch " | |
8142 | "(expected %i, found %i)\n", | |
8143 | !!encoder->base.crtc, enabled); | |
8144 | WARN(active && !encoder->base.crtc, | |
8145 | "active encoder with no crtc\n"); | |
8146 | ||
8147 | WARN(encoder->connectors_active != active, | |
8148 | "encoder's computed active state doesn't match tracked active state " | |
8149 | "(expected %i, found %i)\n", active, encoder->connectors_active); | |
8150 | ||
8151 | active = encoder->get_hw_state(encoder, &pipe); | |
8152 | WARN(active != encoder->connectors_active, | |
8153 | "encoder's hw state doesn't match sw tracking " | |
8154 | "(expected %i, found %i)\n", | |
8155 | encoder->connectors_active, active); | |
8156 | ||
8157 | if (!encoder->base.crtc) | |
8158 | continue; | |
8159 | ||
8160 | tracked_pipe = to_intel_crtc(encoder->base.crtc)->pipe; | |
8161 | WARN(active && pipe != tracked_pipe, | |
8162 | "active encoder's pipe doesn't match" | |
8163 | "(expected %i, found %i)\n", | |
8164 | tracked_pipe, pipe); | |
8165 | ||
8166 | } | |
8167 | ||
8168 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, | |
8169 | base.head) { | |
8170 | bool enabled = false; | |
8171 | bool active = false; | |
8172 | ||
045ac3b5 JB |
8173 | memset(&pipe_config, 0, sizeof(pipe_config)); |
8174 | ||
8af6cf88 DV |
8175 | DRM_DEBUG_KMS("[CRTC:%d]\n", |
8176 | crtc->base.base.id); | |
8177 | ||
8178 | WARN(crtc->active && !crtc->base.enabled, | |
8179 | "active crtc, but not enabled in sw tracking\n"); | |
8180 | ||
8181 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
8182 | base.head) { | |
8183 | if (encoder->base.crtc != &crtc->base) | |
8184 | continue; | |
8185 | enabled = true; | |
8186 | if (encoder->connectors_active) | |
8187 | active = true; | |
045ac3b5 JB |
8188 | if (encoder->get_config) |
8189 | encoder->get_config(encoder, &pipe_config); | |
8af6cf88 DV |
8190 | } |
8191 | WARN(active != crtc->active, | |
8192 | "crtc's computed active state doesn't match tracked active state " | |
8193 | "(expected %i, found %i)\n", active, crtc->active); | |
8194 | WARN(enabled != crtc->base.enabled, | |
8195 | "crtc's computed enabled state doesn't match tracked enabled state " | |
8196 | "(expected %i, found %i)\n", enabled, crtc->base.enabled); | |
8197 | ||
0e8ffe1b DV |
8198 | active = dev_priv->display.get_pipe_config(crtc, |
8199 | &pipe_config); | |
8200 | WARN(crtc->active != active, | |
8201 | "crtc active state doesn't match with hw state " | |
8202 | "(expected %i, found %i)\n", crtc->active, active); | |
8203 | ||
c0b03411 DV |
8204 | if (active && |
8205 | !intel_pipe_config_compare(dev, &crtc->config, &pipe_config)) { | |
8206 | WARN(1, "pipe state doesn't match!\n"); | |
8207 | intel_dump_pipe_config(crtc, &pipe_config, | |
8208 | "[hw state]"); | |
8209 | intel_dump_pipe_config(crtc, &crtc->config, | |
8210 | "[sw state]"); | |
8211 | } | |
8af6cf88 DV |
8212 | } |
8213 | } | |
8214 | ||
f30da187 DV |
8215 | static int __intel_set_mode(struct drm_crtc *crtc, |
8216 | struct drm_display_mode *mode, | |
8217 | int x, int y, struct drm_framebuffer *fb) | |
a6778b3c DV |
8218 | { |
8219 | struct drm_device *dev = crtc->dev; | |
dbf2b54e | 8220 | drm_i915_private_t *dev_priv = dev->dev_private; |
b8cecdf5 DV |
8221 | struct drm_display_mode *saved_mode, *saved_hwmode; |
8222 | struct intel_crtc_config *pipe_config = NULL; | |
25c5b266 DV |
8223 | struct intel_crtc *intel_crtc; |
8224 | unsigned disable_pipes, prepare_pipes, modeset_pipes; | |
c0c36b94 | 8225 | int ret = 0; |
a6778b3c | 8226 | |
3ac18232 | 8227 | saved_mode = kmalloc(2 * sizeof(*saved_mode), GFP_KERNEL); |
c0c36b94 CW |
8228 | if (!saved_mode) |
8229 | return -ENOMEM; | |
3ac18232 | 8230 | saved_hwmode = saved_mode + 1; |
a6778b3c | 8231 | |
e2e1ed41 | 8232 | intel_modeset_affected_pipes(crtc, &modeset_pipes, |
25c5b266 DV |
8233 | &prepare_pipes, &disable_pipes); |
8234 | ||
3ac18232 TG |
8235 | *saved_hwmode = crtc->hwmode; |
8236 | *saved_mode = crtc->mode; | |
a6778b3c | 8237 | |
25c5b266 DV |
8238 | /* Hack: Because we don't (yet) support global modeset on multiple |
8239 | * crtcs, we don't keep track of the new mode for more than one crtc. | |
8240 | * Hence simply check whether any bit is set in modeset_pipes in all the | |
8241 | * pieces of code that are not yet converted to deal with mutliple crtcs | |
8242 | * changing their mode at the same time. */ | |
25c5b266 | 8243 | if (modeset_pipes) { |
4e53c2e0 | 8244 | pipe_config = intel_modeset_pipe_config(crtc, fb, mode); |
b8cecdf5 DV |
8245 | if (IS_ERR(pipe_config)) { |
8246 | ret = PTR_ERR(pipe_config); | |
8247 | pipe_config = NULL; | |
8248 | ||
3ac18232 | 8249 | goto out; |
25c5b266 | 8250 | } |
c0b03411 DV |
8251 | intel_dump_pipe_config(to_intel_crtc(crtc), pipe_config, |
8252 | "[modeset]"); | |
25c5b266 | 8253 | } |
a6778b3c | 8254 | |
460da916 DV |
8255 | for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc) |
8256 | intel_crtc_disable(&intel_crtc->base); | |
8257 | ||
ea9d758d DV |
8258 | for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) { |
8259 | if (intel_crtc->base.enabled) | |
8260 | dev_priv->display.crtc_disable(&intel_crtc->base); | |
8261 | } | |
a6778b3c | 8262 | |
6c4c86f5 DV |
8263 | /* crtc->mode is already used by the ->mode_set callbacks, hence we need |
8264 | * to set it here already despite that we pass it down the callchain. | |
f6e5b160 | 8265 | */ |
b8cecdf5 | 8266 | if (modeset_pipes) { |
25c5b266 | 8267 | crtc->mode = *mode; |
b8cecdf5 DV |
8268 | /* mode_set/enable/disable functions rely on a correct pipe |
8269 | * config. */ | |
8270 | to_intel_crtc(crtc)->config = *pipe_config; | |
8271 | } | |
7758a113 | 8272 | |
ea9d758d DV |
8273 | /* Only after disabling all output pipelines that will be changed can we |
8274 | * update the the output configuration. */ | |
8275 | intel_modeset_update_state(dev, prepare_pipes); | |
f6e5b160 | 8276 | |
47fab737 DV |
8277 | if (dev_priv->display.modeset_global_resources) |
8278 | dev_priv->display.modeset_global_resources(dev); | |
8279 | ||
a6778b3c DV |
8280 | /* Set up the DPLL and any encoders state that needs to adjust or depend |
8281 | * on the DPLL. | |
f6e5b160 | 8282 | */ |
25c5b266 | 8283 | for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) { |
c0c36b94 | 8284 | ret = intel_crtc_mode_set(&intel_crtc->base, |
c0c36b94 CW |
8285 | x, y, fb); |
8286 | if (ret) | |
8287 | goto done; | |
a6778b3c DV |
8288 | } |
8289 | ||
8290 | /* Now enable the clocks, plane, pipe, and connectors that we set up. */ | |
25c5b266 DV |
8291 | for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) |
8292 | dev_priv->display.crtc_enable(&intel_crtc->base); | |
a6778b3c | 8293 | |
25c5b266 DV |
8294 | if (modeset_pipes) { |
8295 | /* Store real post-adjustment hardware mode. */ | |
b8cecdf5 | 8296 | crtc->hwmode = pipe_config->adjusted_mode; |
a6778b3c | 8297 | |
25c5b266 DV |
8298 | /* Calculate and store various constants which |
8299 | * are later needed by vblank and swap-completion | |
8300 | * timestamping. They are derived from true hwmode. | |
8301 | */ | |
8302 | drm_calc_timestamping_constants(crtc); | |
8303 | } | |
a6778b3c DV |
8304 | |
8305 | /* FIXME: add subpixel order */ | |
8306 | done: | |
c0c36b94 | 8307 | if (ret && crtc->enabled) { |
3ac18232 TG |
8308 | crtc->hwmode = *saved_hwmode; |
8309 | crtc->mode = *saved_mode; | |
a6778b3c DV |
8310 | } |
8311 | ||
3ac18232 | 8312 | out: |
b8cecdf5 | 8313 | kfree(pipe_config); |
3ac18232 | 8314 | kfree(saved_mode); |
a6778b3c | 8315 | return ret; |
f6e5b160 CW |
8316 | } |
8317 | ||
f30da187 DV |
8318 | int intel_set_mode(struct drm_crtc *crtc, |
8319 | struct drm_display_mode *mode, | |
8320 | int x, int y, struct drm_framebuffer *fb) | |
8321 | { | |
8322 | int ret; | |
8323 | ||
8324 | ret = __intel_set_mode(crtc, mode, x, y, fb); | |
8325 | ||
8326 | if (ret == 0) | |
8327 | intel_modeset_check_state(crtc->dev); | |
8328 | ||
8329 | return ret; | |
8330 | } | |
8331 | ||
c0c36b94 CW |
8332 | void intel_crtc_restore_mode(struct drm_crtc *crtc) |
8333 | { | |
8334 | intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, crtc->fb); | |
8335 | } | |
8336 | ||
25c5b266 DV |
8337 | #undef for_each_intel_crtc_masked |
8338 | ||
d9e55608 DV |
8339 | static void intel_set_config_free(struct intel_set_config *config) |
8340 | { | |
8341 | if (!config) | |
8342 | return; | |
8343 | ||
1aa4b628 DV |
8344 | kfree(config->save_connector_encoders); |
8345 | kfree(config->save_encoder_crtcs); | |
d9e55608 DV |
8346 | kfree(config); |
8347 | } | |
8348 | ||
85f9eb71 DV |
8349 | static int intel_set_config_save_state(struct drm_device *dev, |
8350 | struct intel_set_config *config) | |
8351 | { | |
85f9eb71 DV |
8352 | struct drm_encoder *encoder; |
8353 | struct drm_connector *connector; | |
8354 | int count; | |
8355 | ||
1aa4b628 DV |
8356 | config->save_encoder_crtcs = |
8357 | kcalloc(dev->mode_config.num_encoder, | |
8358 | sizeof(struct drm_crtc *), GFP_KERNEL); | |
8359 | if (!config->save_encoder_crtcs) | |
85f9eb71 DV |
8360 | return -ENOMEM; |
8361 | ||
1aa4b628 DV |
8362 | config->save_connector_encoders = |
8363 | kcalloc(dev->mode_config.num_connector, | |
8364 | sizeof(struct drm_encoder *), GFP_KERNEL); | |
8365 | if (!config->save_connector_encoders) | |
85f9eb71 DV |
8366 | return -ENOMEM; |
8367 | ||
8368 | /* Copy data. Note that driver private data is not affected. | |
8369 | * Should anything bad happen only the expected state is | |
8370 | * restored, not the drivers personal bookkeeping. | |
8371 | */ | |
85f9eb71 DV |
8372 | count = 0; |
8373 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
1aa4b628 | 8374 | config->save_encoder_crtcs[count++] = encoder->crtc; |
85f9eb71 DV |
8375 | } |
8376 | ||
8377 | count = 0; | |
8378 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
1aa4b628 | 8379 | config->save_connector_encoders[count++] = connector->encoder; |
85f9eb71 DV |
8380 | } |
8381 | ||
8382 | return 0; | |
8383 | } | |
8384 | ||
8385 | static void intel_set_config_restore_state(struct drm_device *dev, | |
8386 | struct intel_set_config *config) | |
8387 | { | |
9a935856 DV |
8388 | struct intel_encoder *encoder; |
8389 | struct intel_connector *connector; | |
85f9eb71 DV |
8390 | int count; |
8391 | ||
85f9eb71 | 8392 | count = 0; |
9a935856 DV |
8393 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
8394 | encoder->new_crtc = | |
8395 | to_intel_crtc(config->save_encoder_crtcs[count++]); | |
85f9eb71 DV |
8396 | } |
8397 | ||
8398 | count = 0; | |
9a935856 DV |
8399 | list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) { |
8400 | connector->new_encoder = | |
8401 | to_intel_encoder(config->save_connector_encoders[count++]); | |
85f9eb71 DV |
8402 | } |
8403 | } | |
8404 | ||
5e2b584e DV |
8405 | static void |
8406 | intel_set_config_compute_mode_changes(struct drm_mode_set *set, | |
8407 | struct intel_set_config *config) | |
8408 | { | |
8409 | ||
8410 | /* We should be able to check here if the fb has the same properties | |
8411 | * and then just flip_or_move it */ | |
8412 | if (set->crtc->fb != set->fb) { | |
8413 | /* If we have no fb then treat it as a full mode set */ | |
8414 | if (set->crtc->fb == NULL) { | |
8415 | DRM_DEBUG_KMS("crtc has no fb, full mode set\n"); | |
8416 | config->mode_changed = true; | |
8417 | } else if (set->fb == NULL) { | |
8418 | config->mode_changed = true; | |
72f4901e DV |
8419 | } else if (set->fb->pixel_format != |
8420 | set->crtc->fb->pixel_format) { | |
5e2b584e DV |
8421 | config->mode_changed = true; |
8422 | } else | |
8423 | config->fb_changed = true; | |
8424 | } | |
8425 | ||
835c5873 | 8426 | if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y)) |
5e2b584e DV |
8427 | config->fb_changed = true; |
8428 | ||
8429 | if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) { | |
8430 | DRM_DEBUG_KMS("modes are different, full mode set\n"); | |
8431 | drm_mode_debug_printmodeline(&set->crtc->mode); | |
8432 | drm_mode_debug_printmodeline(set->mode); | |
8433 | config->mode_changed = true; | |
8434 | } | |
8435 | } | |
8436 | ||
2e431051 | 8437 | static int |
9a935856 DV |
8438 | intel_modeset_stage_output_state(struct drm_device *dev, |
8439 | struct drm_mode_set *set, | |
8440 | struct intel_set_config *config) | |
50f56119 | 8441 | { |
85f9eb71 | 8442 | struct drm_crtc *new_crtc; |
9a935856 DV |
8443 | struct intel_connector *connector; |
8444 | struct intel_encoder *encoder; | |
2e431051 | 8445 | int count, ro; |
50f56119 | 8446 | |
9abdda74 | 8447 | /* The upper layers ensure that we either disable a crtc or have a list |
9a935856 DV |
8448 | * of connectors. For paranoia, double-check this. */ |
8449 | WARN_ON(!set->fb && (set->num_connectors != 0)); | |
8450 | WARN_ON(set->fb && (set->num_connectors == 0)); | |
8451 | ||
50f56119 | 8452 | count = 0; |
9a935856 DV |
8453 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
8454 | base.head) { | |
8455 | /* Otherwise traverse passed in connector list and get encoders | |
8456 | * for them. */ | |
50f56119 | 8457 | for (ro = 0; ro < set->num_connectors; ro++) { |
9a935856 DV |
8458 | if (set->connectors[ro] == &connector->base) { |
8459 | connector->new_encoder = connector->encoder; | |
50f56119 DV |
8460 | break; |
8461 | } | |
8462 | } | |
8463 | ||
9a935856 DV |
8464 | /* If we disable the crtc, disable all its connectors. Also, if |
8465 | * the connector is on the changing crtc but not on the new | |
8466 | * connector list, disable it. */ | |
8467 | if ((!set->fb || ro == set->num_connectors) && | |
8468 | connector->base.encoder && | |
8469 | connector->base.encoder->crtc == set->crtc) { | |
8470 | connector->new_encoder = NULL; | |
8471 | ||
8472 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n", | |
8473 | connector->base.base.id, | |
8474 | drm_get_connector_name(&connector->base)); | |
8475 | } | |
8476 | ||
8477 | ||
8478 | if (&connector->new_encoder->base != connector->base.encoder) { | |
50f56119 | 8479 | DRM_DEBUG_KMS("encoder changed, full mode switch\n"); |
5e2b584e | 8480 | config->mode_changed = true; |
50f56119 DV |
8481 | } |
8482 | } | |
9a935856 | 8483 | /* connector->new_encoder is now updated for all connectors. */ |
50f56119 | 8484 | |
9a935856 | 8485 | /* Update crtc of enabled connectors. */ |
50f56119 | 8486 | count = 0; |
9a935856 DV |
8487 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
8488 | base.head) { | |
8489 | if (!connector->new_encoder) | |
50f56119 DV |
8490 | continue; |
8491 | ||
9a935856 | 8492 | new_crtc = connector->new_encoder->base.crtc; |
50f56119 DV |
8493 | |
8494 | for (ro = 0; ro < set->num_connectors; ro++) { | |
9a935856 | 8495 | if (set->connectors[ro] == &connector->base) |
50f56119 DV |
8496 | new_crtc = set->crtc; |
8497 | } | |
8498 | ||
8499 | /* Make sure the new CRTC will work with the encoder */ | |
9a935856 DV |
8500 | if (!intel_encoder_crtc_ok(&connector->new_encoder->base, |
8501 | new_crtc)) { | |
5e2b584e | 8502 | return -EINVAL; |
50f56119 | 8503 | } |
9a935856 DV |
8504 | connector->encoder->new_crtc = to_intel_crtc(new_crtc); |
8505 | ||
8506 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n", | |
8507 | connector->base.base.id, | |
8508 | drm_get_connector_name(&connector->base), | |
8509 | new_crtc->base.id); | |
8510 | } | |
8511 | ||
8512 | /* Check for any encoders that needs to be disabled. */ | |
8513 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
8514 | base.head) { | |
8515 | list_for_each_entry(connector, | |
8516 | &dev->mode_config.connector_list, | |
8517 | base.head) { | |
8518 | if (connector->new_encoder == encoder) { | |
8519 | WARN_ON(!connector->new_encoder->new_crtc); | |
8520 | ||
8521 | goto next_encoder; | |
8522 | } | |
8523 | } | |
8524 | encoder->new_crtc = NULL; | |
8525 | next_encoder: | |
8526 | /* Only now check for crtc changes so we don't miss encoders | |
8527 | * that will be disabled. */ | |
8528 | if (&encoder->new_crtc->base != encoder->base.crtc) { | |
50f56119 | 8529 | DRM_DEBUG_KMS("crtc changed, full mode switch\n"); |
5e2b584e | 8530 | config->mode_changed = true; |
50f56119 DV |
8531 | } |
8532 | } | |
9a935856 | 8533 | /* Now we've also updated encoder->new_crtc for all encoders. */ |
50f56119 | 8534 | |
2e431051 DV |
8535 | return 0; |
8536 | } | |
8537 | ||
8538 | static int intel_crtc_set_config(struct drm_mode_set *set) | |
8539 | { | |
8540 | struct drm_device *dev; | |
2e431051 DV |
8541 | struct drm_mode_set save_set; |
8542 | struct intel_set_config *config; | |
8543 | int ret; | |
2e431051 | 8544 | |
8d3e375e DV |
8545 | BUG_ON(!set); |
8546 | BUG_ON(!set->crtc); | |
8547 | BUG_ON(!set->crtc->helper_private); | |
2e431051 | 8548 | |
7e53f3a4 DV |
8549 | /* Enforce sane interface api - has been abused by the fb helper. */ |
8550 | BUG_ON(!set->mode && set->fb); | |
8551 | BUG_ON(set->fb && set->num_connectors == 0); | |
431e50f7 | 8552 | |
2e431051 DV |
8553 | if (set->fb) { |
8554 | DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n", | |
8555 | set->crtc->base.id, set->fb->base.id, | |
8556 | (int)set->num_connectors, set->x, set->y); | |
8557 | } else { | |
8558 | DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id); | |
2e431051 DV |
8559 | } |
8560 | ||
8561 | dev = set->crtc->dev; | |
8562 | ||
8563 | ret = -ENOMEM; | |
8564 | config = kzalloc(sizeof(*config), GFP_KERNEL); | |
8565 | if (!config) | |
8566 | goto out_config; | |
8567 | ||
8568 | ret = intel_set_config_save_state(dev, config); | |
8569 | if (ret) | |
8570 | goto out_config; | |
8571 | ||
8572 | save_set.crtc = set->crtc; | |
8573 | save_set.mode = &set->crtc->mode; | |
8574 | save_set.x = set->crtc->x; | |
8575 | save_set.y = set->crtc->y; | |
8576 | save_set.fb = set->crtc->fb; | |
8577 | ||
8578 | /* Compute whether we need a full modeset, only an fb base update or no | |
8579 | * change at all. In the future we might also check whether only the | |
8580 | * mode changed, e.g. for LVDS where we only change the panel fitter in | |
8581 | * such cases. */ | |
8582 | intel_set_config_compute_mode_changes(set, config); | |
8583 | ||
9a935856 | 8584 | ret = intel_modeset_stage_output_state(dev, set, config); |
2e431051 DV |
8585 | if (ret) |
8586 | goto fail; | |
8587 | ||
5e2b584e | 8588 | if (config->mode_changed) { |
c0c36b94 CW |
8589 | ret = intel_set_mode(set->crtc, set->mode, |
8590 | set->x, set->y, set->fb); | |
8591 | if (ret) { | |
8592 | DRM_ERROR("failed to set mode on [CRTC:%d], err = %d\n", | |
8593 | set->crtc->base.id, ret); | |
87f1faa6 DV |
8594 | goto fail; |
8595 | } | |
5e2b584e | 8596 | } else if (config->fb_changed) { |
4878cae2 VS |
8597 | intel_crtc_wait_for_pending_flips(set->crtc); |
8598 | ||
4f660f49 | 8599 | ret = intel_pipe_set_base(set->crtc, |
94352cf9 | 8600 | set->x, set->y, set->fb); |
50f56119 DV |
8601 | } |
8602 | ||
d9e55608 DV |
8603 | intel_set_config_free(config); |
8604 | ||
50f56119 DV |
8605 | return 0; |
8606 | ||
8607 | fail: | |
85f9eb71 | 8608 | intel_set_config_restore_state(dev, config); |
50f56119 DV |
8609 | |
8610 | /* Try to restore the config */ | |
5e2b584e | 8611 | if (config->mode_changed && |
c0c36b94 CW |
8612 | intel_set_mode(save_set.crtc, save_set.mode, |
8613 | save_set.x, save_set.y, save_set.fb)) | |
50f56119 DV |
8614 | DRM_ERROR("failed to restore config after modeset failure\n"); |
8615 | ||
d9e55608 DV |
8616 | out_config: |
8617 | intel_set_config_free(config); | |
50f56119 DV |
8618 | return ret; |
8619 | } | |
f6e5b160 CW |
8620 | |
8621 | static const struct drm_crtc_funcs intel_crtc_funcs = { | |
f6e5b160 CW |
8622 | .cursor_set = intel_crtc_cursor_set, |
8623 | .cursor_move = intel_crtc_cursor_move, | |
8624 | .gamma_set = intel_crtc_gamma_set, | |
50f56119 | 8625 | .set_config = intel_crtc_set_config, |
f6e5b160 CW |
8626 | .destroy = intel_crtc_destroy, |
8627 | .page_flip = intel_crtc_page_flip, | |
8628 | }; | |
8629 | ||
79f689aa PZ |
8630 | static void intel_cpu_pll_init(struct drm_device *dev) |
8631 | { | |
affa9354 | 8632 | if (HAS_DDI(dev)) |
79f689aa PZ |
8633 | intel_ddi_pll_init(dev); |
8634 | } | |
8635 | ||
ee7b9f93 JB |
8636 | static void intel_pch_pll_init(struct drm_device *dev) |
8637 | { | |
8638 | drm_i915_private_t *dev_priv = dev->dev_private; | |
8639 | int i; | |
8640 | ||
8641 | if (dev_priv->num_pch_pll == 0) { | |
8642 | DRM_DEBUG_KMS("No PCH PLLs on this hardware, skipping initialisation\n"); | |
8643 | return; | |
8644 | } | |
8645 | ||
8646 | for (i = 0; i < dev_priv->num_pch_pll; i++) { | |
8647 | dev_priv->pch_plls[i].pll_reg = _PCH_DPLL(i); | |
8648 | dev_priv->pch_plls[i].fp0_reg = _PCH_FP0(i); | |
8649 | dev_priv->pch_plls[i].fp1_reg = _PCH_FP1(i); | |
8650 | } | |
8651 | } | |
8652 | ||
b358d0a6 | 8653 | static void intel_crtc_init(struct drm_device *dev, int pipe) |
79e53945 | 8654 | { |
22fd0fab | 8655 | drm_i915_private_t *dev_priv = dev->dev_private; |
79e53945 JB |
8656 | struct intel_crtc *intel_crtc; |
8657 | int i; | |
8658 | ||
8659 | intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL); | |
8660 | if (intel_crtc == NULL) | |
8661 | return; | |
8662 | ||
8663 | drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs); | |
8664 | ||
8665 | drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256); | |
79e53945 JB |
8666 | for (i = 0; i < 256; i++) { |
8667 | intel_crtc->lut_r[i] = i; | |
8668 | intel_crtc->lut_g[i] = i; | |
8669 | intel_crtc->lut_b[i] = i; | |
8670 | } | |
8671 | ||
80824003 JB |
8672 | /* Swap pipes & planes for FBC on pre-965 */ |
8673 | intel_crtc->pipe = pipe; | |
8674 | intel_crtc->plane = pipe; | |
e2e767ab | 8675 | if (IS_MOBILE(dev) && IS_GEN3(dev)) { |
28c97730 | 8676 | DRM_DEBUG_KMS("swapping pipes & planes for FBC\n"); |
e2e767ab | 8677 | intel_crtc->plane = !pipe; |
80824003 JB |
8678 | } |
8679 | ||
22fd0fab JB |
8680 | BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) || |
8681 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL); | |
8682 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base; | |
8683 | dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base; | |
8684 | ||
79e53945 | 8685 | drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); |
79e53945 JB |
8686 | } |
8687 | ||
08d7b3d1 | 8688 | int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, |
05394f39 | 8689 | struct drm_file *file) |
08d7b3d1 | 8690 | { |
08d7b3d1 | 8691 | struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; |
c05422d5 DV |
8692 | struct drm_mode_object *drmmode_obj; |
8693 | struct intel_crtc *crtc; | |
08d7b3d1 | 8694 | |
1cff8f6b DV |
8695 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
8696 | return -ENODEV; | |
08d7b3d1 | 8697 | |
c05422d5 DV |
8698 | drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id, |
8699 | DRM_MODE_OBJECT_CRTC); | |
08d7b3d1 | 8700 | |
c05422d5 | 8701 | if (!drmmode_obj) { |
08d7b3d1 CW |
8702 | DRM_ERROR("no such CRTC id\n"); |
8703 | return -EINVAL; | |
8704 | } | |
8705 | ||
c05422d5 DV |
8706 | crtc = to_intel_crtc(obj_to_crtc(drmmode_obj)); |
8707 | pipe_from_crtc_id->pipe = crtc->pipe; | |
08d7b3d1 | 8708 | |
c05422d5 | 8709 | return 0; |
08d7b3d1 CW |
8710 | } |
8711 | ||
66a9278e | 8712 | static int intel_encoder_clones(struct intel_encoder *encoder) |
79e53945 | 8713 | { |
66a9278e DV |
8714 | struct drm_device *dev = encoder->base.dev; |
8715 | struct intel_encoder *source_encoder; | |
79e53945 | 8716 | int index_mask = 0; |
79e53945 JB |
8717 | int entry = 0; |
8718 | ||
66a9278e DV |
8719 | list_for_each_entry(source_encoder, |
8720 | &dev->mode_config.encoder_list, base.head) { | |
8721 | ||
8722 | if (encoder == source_encoder) | |
79e53945 | 8723 | index_mask |= (1 << entry); |
66a9278e DV |
8724 | |
8725 | /* Intel hw has only one MUX where enocoders could be cloned. */ | |
8726 | if (encoder->cloneable && source_encoder->cloneable) | |
8727 | index_mask |= (1 << entry); | |
8728 | ||
79e53945 JB |
8729 | entry++; |
8730 | } | |
4ef69c7a | 8731 | |
79e53945 JB |
8732 | return index_mask; |
8733 | } | |
8734 | ||
4d302442 CW |
8735 | static bool has_edp_a(struct drm_device *dev) |
8736 | { | |
8737 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8738 | ||
8739 | if (!IS_MOBILE(dev)) | |
8740 | return false; | |
8741 | ||
8742 | if ((I915_READ(DP_A) & DP_DETECTED) == 0) | |
8743 | return false; | |
8744 | ||
8745 | if (IS_GEN5(dev) && | |
8746 | (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE)) | |
8747 | return false; | |
8748 | ||
8749 | return true; | |
8750 | } | |
8751 | ||
79e53945 JB |
8752 | static void intel_setup_outputs(struct drm_device *dev) |
8753 | { | |
725e30ad | 8754 | struct drm_i915_private *dev_priv = dev->dev_private; |
4ef69c7a | 8755 | struct intel_encoder *encoder; |
cb0953d7 | 8756 | bool dpd_is_edp = false; |
f3cfcba6 | 8757 | bool has_lvds; |
79e53945 | 8758 | |
f3cfcba6 | 8759 | has_lvds = intel_lvds_init(dev); |
c5d1b51d CW |
8760 | if (!has_lvds && !HAS_PCH_SPLIT(dev)) { |
8761 | /* disable the panel fitter on everything but LVDS */ | |
8762 | I915_WRITE(PFIT_CONTROL, 0); | |
8763 | } | |
79e53945 | 8764 | |
c40c0f5b | 8765 | if (!IS_ULT(dev)) |
79935fca | 8766 | intel_crt_init(dev); |
cb0953d7 | 8767 | |
affa9354 | 8768 | if (HAS_DDI(dev)) { |
0e72a5b5 ED |
8769 | int found; |
8770 | ||
8771 | /* Haswell uses DDI functions to detect digital outputs */ | |
8772 | found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED; | |
8773 | /* DDI A only supports eDP */ | |
8774 | if (found) | |
8775 | intel_ddi_init(dev, PORT_A); | |
8776 | ||
8777 | /* DDI B, C and D detection is indicated by the SFUSE_STRAP | |
8778 | * register */ | |
8779 | found = I915_READ(SFUSE_STRAP); | |
8780 | ||
8781 | if (found & SFUSE_STRAP_DDIB_DETECTED) | |
8782 | intel_ddi_init(dev, PORT_B); | |
8783 | if (found & SFUSE_STRAP_DDIC_DETECTED) | |
8784 | intel_ddi_init(dev, PORT_C); | |
8785 | if (found & SFUSE_STRAP_DDID_DETECTED) | |
8786 | intel_ddi_init(dev, PORT_D); | |
8787 | } else if (HAS_PCH_SPLIT(dev)) { | |
cb0953d7 | 8788 | int found; |
270b3042 DV |
8789 | dpd_is_edp = intel_dpd_is_edp(dev); |
8790 | ||
8791 | if (has_edp_a(dev)) | |
8792 | intel_dp_init(dev, DP_A, PORT_A); | |
cb0953d7 | 8793 | |
dc0fa718 | 8794 | if (I915_READ(PCH_HDMIB) & SDVO_DETECTED) { |
461ed3ca | 8795 | /* PCH SDVOB multiplex with HDMIB */ |
eef4eacb | 8796 | found = intel_sdvo_init(dev, PCH_SDVOB, true); |
30ad48b7 | 8797 | if (!found) |
e2debe91 | 8798 | intel_hdmi_init(dev, PCH_HDMIB, PORT_B); |
5eb08b69 | 8799 | if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) |
ab9d7c30 | 8800 | intel_dp_init(dev, PCH_DP_B, PORT_B); |
30ad48b7 ZW |
8801 | } |
8802 | ||
dc0fa718 | 8803 | if (I915_READ(PCH_HDMIC) & SDVO_DETECTED) |
e2debe91 | 8804 | intel_hdmi_init(dev, PCH_HDMIC, PORT_C); |
30ad48b7 | 8805 | |
dc0fa718 | 8806 | if (!dpd_is_edp && I915_READ(PCH_HDMID) & SDVO_DETECTED) |
e2debe91 | 8807 | intel_hdmi_init(dev, PCH_HDMID, PORT_D); |
30ad48b7 | 8808 | |
5eb08b69 | 8809 | if (I915_READ(PCH_DP_C) & DP_DETECTED) |
ab9d7c30 | 8810 | intel_dp_init(dev, PCH_DP_C, PORT_C); |
5eb08b69 | 8811 | |
270b3042 | 8812 | if (I915_READ(PCH_DP_D) & DP_DETECTED) |
ab9d7c30 | 8813 | intel_dp_init(dev, PCH_DP_D, PORT_D); |
4a87d65d | 8814 | } else if (IS_VALLEYVIEW(dev)) { |
19c03924 | 8815 | /* Check for built-in panel first. Shares lanes with HDMI on SDVOC */ |
67cfc203 VS |
8816 | if (I915_READ(VLV_DISPLAY_BASE + DP_C) & DP_DETECTED) |
8817 | intel_dp_init(dev, VLV_DISPLAY_BASE + DP_C, PORT_C); | |
19c03924 | 8818 | |
dc0fa718 | 8819 | if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIB) & SDVO_DETECTED) { |
e2debe91 PZ |
8820 | intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIB, |
8821 | PORT_B); | |
67cfc203 VS |
8822 | if (I915_READ(VLV_DISPLAY_BASE + DP_B) & DP_DETECTED) |
8823 | intel_dp_init(dev, VLV_DISPLAY_BASE + DP_B, PORT_B); | |
4a87d65d | 8824 | } |
103a196f | 8825 | } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) { |
27185ae1 | 8826 | bool found = false; |
7d57382e | 8827 | |
e2debe91 | 8828 | if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 8829 | DRM_DEBUG_KMS("probing SDVOB\n"); |
e2debe91 | 8830 | found = intel_sdvo_init(dev, GEN3_SDVOB, true); |
b01f2c3a JB |
8831 | if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) { |
8832 | DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); | |
e2debe91 | 8833 | intel_hdmi_init(dev, GEN4_HDMIB, PORT_B); |
b01f2c3a | 8834 | } |
27185ae1 | 8835 | |
e7281eab | 8836 | if (!found && SUPPORTS_INTEGRATED_DP(dev)) |
ab9d7c30 | 8837 | intel_dp_init(dev, DP_B, PORT_B); |
725e30ad | 8838 | } |
13520b05 KH |
8839 | |
8840 | /* Before G4X SDVOC doesn't have its own detect register */ | |
13520b05 | 8841 | |
e2debe91 | 8842 | if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 8843 | DRM_DEBUG_KMS("probing SDVOC\n"); |
e2debe91 | 8844 | found = intel_sdvo_init(dev, GEN3_SDVOC, false); |
b01f2c3a | 8845 | } |
27185ae1 | 8846 | |
e2debe91 | 8847 | if (!found && (I915_READ(GEN3_SDVOC) & SDVO_DETECTED)) { |
27185ae1 | 8848 | |
b01f2c3a JB |
8849 | if (SUPPORTS_INTEGRATED_HDMI(dev)) { |
8850 | DRM_DEBUG_KMS("probing HDMI on SDVOC\n"); | |
e2debe91 | 8851 | intel_hdmi_init(dev, GEN4_HDMIC, PORT_C); |
b01f2c3a | 8852 | } |
e7281eab | 8853 | if (SUPPORTS_INTEGRATED_DP(dev)) |
ab9d7c30 | 8854 | intel_dp_init(dev, DP_C, PORT_C); |
725e30ad | 8855 | } |
27185ae1 | 8856 | |
b01f2c3a | 8857 | if (SUPPORTS_INTEGRATED_DP(dev) && |
e7281eab | 8858 | (I915_READ(DP_D) & DP_DETECTED)) |
ab9d7c30 | 8859 | intel_dp_init(dev, DP_D, PORT_D); |
bad720ff | 8860 | } else if (IS_GEN2(dev)) |
79e53945 JB |
8861 | intel_dvo_init(dev); |
8862 | ||
103a196f | 8863 | if (SUPPORTS_TV(dev)) |
79e53945 JB |
8864 | intel_tv_init(dev); |
8865 | ||
4ef69c7a CW |
8866 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
8867 | encoder->base.possible_crtcs = encoder->crtc_mask; | |
8868 | encoder->base.possible_clones = | |
66a9278e | 8869 | intel_encoder_clones(encoder); |
79e53945 | 8870 | } |
47356eb6 | 8871 | |
dde86e2d | 8872 | intel_init_pch_refclk(dev); |
270b3042 DV |
8873 | |
8874 | drm_helper_move_panel_connectors_to_head(dev); | |
79e53945 JB |
8875 | } |
8876 | ||
8877 | static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb) | |
8878 | { | |
8879 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
79e53945 JB |
8880 | |
8881 | drm_framebuffer_cleanup(fb); | |
05394f39 | 8882 | drm_gem_object_unreference_unlocked(&intel_fb->obj->base); |
79e53945 JB |
8883 | |
8884 | kfree(intel_fb); | |
8885 | } | |
8886 | ||
8887 | static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb, | |
05394f39 | 8888 | struct drm_file *file, |
79e53945 JB |
8889 | unsigned int *handle) |
8890 | { | |
8891 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
05394f39 | 8892 | struct drm_i915_gem_object *obj = intel_fb->obj; |
79e53945 | 8893 | |
05394f39 | 8894 | return drm_gem_handle_create(file, &obj->base, handle); |
79e53945 JB |
8895 | } |
8896 | ||
8897 | static const struct drm_framebuffer_funcs intel_fb_funcs = { | |
8898 | .destroy = intel_user_framebuffer_destroy, | |
8899 | .create_handle = intel_user_framebuffer_create_handle, | |
8900 | }; | |
8901 | ||
38651674 DA |
8902 | int intel_framebuffer_init(struct drm_device *dev, |
8903 | struct intel_framebuffer *intel_fb, | |
308e5bcb | 8904 | struct drm_mode_fb_cmd2 *mode_cmd, |
05394f39 | 8905 | struct drm_i915_gem_object *obj) |
79e53945 | 8906 | { |
79e53945 JB |
8907 | int ret; |
8908 | ||
c16ed4be CW |
8909 | if (obj->tiling_mode == I915_TILING_Y) { |
8910 | DRM_DEBUG("hardware does not support tiling Y\n"); | |
57cd6508 | 8911 | return -EINVAL; |
c16ed4be | 8912 | } |
57cd6508 | 8913 | |
c16ed4be CW |
8914 | if (mode_cmd->pitches[0] & 63) { |
8915 | DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n", | |
8916 | mode_cmd->pitches[0]); | |
57cd6508 | 8917 | return -EINVAL; |
c16ed4be | 8918 | } |
57cd6508 | 8919 | |
5d7bd705 | 8920 | /* FIXME <= Gen4 stride limits are bit unclear */ |
c16ed4be CW |
8921 | if (mode_cmd->pitches[0] > 32768) { |
8922 | DRM_DEBUG("pitch (%d) must be at less than 32768\n", | |
8923 | mode_cmd->pitches[0]); | |
5d7bd705 | 8924 | return -EINVAL; |
c16ed4be | 8925 | } |
5d7bd705 VS |
8926 | |
8927 | if (obj->tiling_mode != I915_TILING_NONE && | |
c16ed4be CW |
8928 | mode_cmd->pitches[0] != obj->stride) { |
8929 | DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n", | |
8930 | mode_cmd->pitches[0], obj->stride); | |
5d7bd705 | 8931 | return -EINVAL; |
c16ed4be | 8932 | } |
5d7bd705 | 8933 | |
57779d06 | 8934 | /* Reject formats not supported by any plane early. */ |
308e5bcb | 8935 | switch (mode_cmd->pixel_format) { |
57779d06 | 8936 | case DRM_FORMAT_C8: |
04b3924d VS |
8937 | case DRM_FORMAT_RGB565: |
8938 | case DRM_FORMAT_XRGB8888: | |
8939 | case DRM_FORMAT_ARGB8888: | |
57779d06 VS |
8940 | break; |
8941 | case DRM_FORMAT_XRGB1555: | |
8942 | case DRM_FORMAT_ARGB1555: | |
c16ed4be CW |
8943 | if (INTEL_INFO(dev)->gen > 3) { |
8944 | DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format); | |
57779d06 | 8945 | return -EINVAL; |
c16ed4be | 8946 | } |
57779d06 VS |
8947 | break; |
8948 | case DRM_FORMAT_XBGR8888: | |
8949 | case DRM_FORMAT_ABGR8888: | |
04b3924d VS |
8950 | case DRM_FORMAT_XRGB2101010: |
8951 | case DRM_FORMAT_ARGB2101010: | |
57779d06 VS |
8952 | case DRM_FORMAT_XBGR2101010: |
8953 | case DRM_FORMAT_ABGR2101010: | |
c16ed4be CW |
8954 | if (INTEL_INFO(dev)->gen < 4) { |
8955 | DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format); | |
57779d06 | 8956 | return -EINVAL; |
c16ed4be | 8957 | } |
b5626747 | 8958 | break; |
04b3924d VS |
8959 | case DRM_FORMAT_YUYV: |
8960 | case DRM_FORMAT_UYVY: | |
8961 | case DRM_FORMAT_YVYU: | |
8962 | case DRM_FORMAT_VYUY: | |
c16ed4be CW |
8963 | if (INTEL_INFO(dev)->gen < 5) { |
8964 | DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format); | |
57779d06 | 8965 | return -EINVAL; |
c16ed4be | 8966 | } |
57cd6508 CW |
8967 | break; |
8968 | default: | |
c16ed4be | 8969 | DRM_DEBUG("unsupported pixel format 0x%08x\n", mode_cmd->pixel_format); |
57cd6508 CW |
8970 | return -EINVAL; |
8971 | } | |
8972 | ||
90f9a336 VS |
8973 | /* FIXME need to adjust LINOFF/TILEOFF accordingly. */ |
8974 | if (mode_cmd->offsets[0] != 0) | |
8975 | return -EINVAL; | |
8976 | ||
c7d73f6a DV |
8977 | drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); |
8978 | intel_fb->obj = obj; | |
8979 | ||
79e53945 JB |
8980 | ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); |
8981 | if (ret) { | |
8982 | DRM_ERROR("framebuffer init failed %d\n", ret); | |
8983 | return ret; | |
8984 | } | |
8985 | ||
79e53945 JB |
8986 | return 0; |
8987 | } | |
8988 | ||
79e53945 JB |
8989 | static struct drm_framebuffer * |
8990 | intel_user_framebuffer_create(struct drm_device *dev, | |
8991 | struct drm_file *filp, | |
308e5bcb | 8992 | struct drm_mode_fb_cmd2 *mode_cmd) |
79e53945 | 8993 | { |
05394f39 | 8994 | struct drm_i915_gem_object *obj; |
79e53945 | 8995 | |
308e5bcb JB |
8996 | obj = to_intel_bo(drm_gem_object_lookup(dev, filp, |
8997 | mode_cmd->handles[0])); | |
c8725226 | 8998 | if (&obj->base == NULL) |
cce13ff7 | 8999 | return ERR_PTR(-ENOENT); |
79e53945 | 9000 | |
d2dff872 | 9001 | return intel_framebuffer_create(dev, mode_cmd, obj); |
79e53945 JB |
9002 | } |
9003 | ||
79e53945 | 9004 | static const struct drm_mode_config_funcs intel_mode_funcs = { |
79e53945 | 9005 | .fb_create = intel_user_framebuffer_create, |
eb1f8e4f | 9006 | .output_poll_changed = intel_fb_output_poll_changed, |
79e53945 JB |
9007 | }; |
9008 | ||
e70236a8 JB |
9009 | /* Set up chip specific display functions */ |
9010 | static void intel_init_display(struct drm_device *dev) | |
9011 | { | |
9012 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9013 | ||
affa9354 | 9014 | if (HAS_DDI(dev)) { |
0e8ffe1b | 9015 | dev_priv->display.get_pipe_config = haswell_get_pipe_config; |
09b4ddf9 | 9016 | dev_priv->display.crtc_mode_set = haswell_crtc_mode_set; |
4f771f10 PZ |
9017 | dev_priv->display.crtc_enable = haswell_crtc_enable; |
9018 | dev_priv->display.crtc_disable = haswell_crtc_disable; | |
6441ab5f | 9019 | dev_priv->display.off = haswell_crtc_off; |
09b4ddf9 PZ |
9020 | dev_priv->display.update_plane = ironlake_update_plane; |
9021 | } else if (HAS_PCH_SPLIT(dev)) { | |
0e8ffe1b | 9022 | dev_priv->display.get_pipe_config = ironlake_get_pipe_config; |
f564048e | 9023 | dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set; |
76e5a89c DV |
9024 | dev_priv->display.crtc_enable = ironlake_crtc_enable; |
9025 | dev_priv->display.crtc_disable = ironlake_crtc_disable; | |
ee7b9f93 | 9026 | dev_priv->display.off = ironlake_crtc_off; |
17638cd6 | 9027 | dev_priv->display.update_plane = ironlake_update_plane; |
89b667f8 JB |
9028 | } else if (IS_VALLEYVIEW(dev)) { |
9029 | dev_priv->display.get_pipe_config = i9xx_get_pipe_config; | |
9030 | dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set; | |
9031 | dev_priv->display.crtc_enable = valleyview_crtc_enable; | |
9032 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
9033 | dev_priv->display.off = i9xx_crtc_off; | |
9034 | dev_priv->display.update_plane = i9xx_update_plane; | |
f564048e | 9035 | } else { |
0e8ffe1b | 9036 | dev_priv->display.get_pipe_config = i9xx_get_pipe_config; |
f564048e | 9037 | dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set; |
76e5a89c DV |
9038 | dev_priv->display.crtc_enable = i9xx_crtc_enable; |
9039 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
ee7b9f93 | 9040 | dev_priv->display.off = i9xx_crtc_off; |
17638cd6 | 9041 | dev_priv->display.update_plane = i9xx_update_plane; |
f564048e | 9042 | } |
e70236a8 | 9043 | |
e70236a8 | 9044 | /* Returns the core display clock speed */ |
25eb05fc JB |
9045 | if (IS_VALLEYVIEW(dev)) |
9046 | dev_priv->display.get_display_clock_speed = | |
9047 | valleyview_get_display_clock_speed; | |
9048 | else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev))) | |
e70236a8 JB |
9049 | dev_priv->display.get_display_clock_speed = |
9050 | i945_get_display_clock_speed; | |
9051 | else if (IS_I915G(dev)) | |
9052 | dev_priv->display.get_display_clock_speed = | |
9053 | i915_get_display_clock_speed; | |
f2b115e6 | 9054 | else if (IS_I945GM(dev) || IS_845G(dev) || IS_PINEVIEW_M(dev)) |
e70236a8 JB |
9055 | dev_priv->display.get_display_clock_speed = |
9056 | i9xx_misc_get_display_clock_speed; | |
9057 | else if (IS_I915GM(dev)) | |
9058 | dev_priv->display.get_display_clock_speed = | |
9059 | i915gm_get_display_clock_speed; | |
9060 | else if (IS_I865G(dev)) | |
9061 | dev_priv->display.get_display_clock_speed = | |
9062 | i865_get_display_clock_speed; | |
f0f8a9ce | 9063 | else if (IS_I85X(dev)) |
e70236a8 JB |
9064 | dev_priv->display.get_display_clock_speed = |
9065 | i855_get_display_clock_speed; | |
9066 | else /* 852, 830 */ | |
9067 | dev_priv->display.get_display_clock_speed = | |
9068 | i830_get_display_clock_speed; | |
9069 | ||
7f8a8569 | 9070 | if (HAS_PCH_SPLIT(dev)) { |
f00a3ddf | 9071 | if (IS_GEN5(dev)) { |
674cf967 | 9072 | dev_priv->display.fdi_link_train = ironlake_fdi_link_train; |
e0dac65e | 9073 | dev_priv->display.write_eld = ironlake_write_eld; |
1398261a | 9074 | } else if (IS_GEN6(dev)) { |
674cf967 | 9075 | dev_priv->display.fdi_link_train = gen6_fdi_link_train; |
e0dac65e | 9076 | dev_priv->display.write_eld = ironlake_write_eld; |
357555c0 JB |
9077 | } else if (IS_IVYBRIDGE(dev)) { |
9078 | /* FIXME: detect B0+ stepping and use auto training */ | |
9079 | dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train; | |
e0dac65e | 9080 | dev_priv->display.write_eld = ironlake_write_eld; |
01a415fd DV |
9081 | dev_priv->display.modeset_global_resources = |
9082 | ivb_modeset_global_resources; | |
c82e4d26 ED |
9083 | } else if (IS_HASWELL(dev)) { |
9084 | dev_priv->display.fdi_link_train = hsw_fdi_link_train; | |
83358c85 | 9085 | dev_priv->display.write_eld = haswell_write_eld; |
d6dd9eb1 DV |
9086 | dev_priv->display.modeset_global_resources = |
9087 | haswell_modeset_global_resources; | |
a0e63c22 | 9088 | } |
6067aaea | 9089 | } else if (IS_G4X(dev)) { |
e0dac65e | 9090 | dev_priv->display.write_eld = g4x_write_eld; |
e70236a8 | 9091 | } |
8c9f3aaf JB |
9092 | |
9093 | /* Default just returns -ENODEV to indicate unsupported */ | |
9094 | dev_priv->display.queue_flip = intel_default_queue_flip; | |
9095 | ||
9096 | switch (INTEL_INFO(dev)->gen) { | |
9097 | case 2: | |
9098 | dev_priv->display.queue_flip = intel_gen2_queue_flip; | |
9099 | break; | |
9100 | ||
9101 | case 3: | |
9102 | dev_priv->display.queue_flip = intel_gen3_queue_flip; | |
9103 | break; | |
9104 | ||
9105 | case 4: | |
9106 | case 5: | |
9107 | dev_priv->display.queue_flip = intel_gen4_queue_flip; | |
9108 | break; | |
9109 | ||
9110 | case 6: | |
9111 | dev_priv->display.queue_flip = intel_gen6_queue_flip; | |
9112 | break; | |
7c9017e5 JB |
9113 | case 7: |
9114 | dev_priv->display.queue_flip = intel_gen7_queue_flip; | |
9115 | break; | |
8c9f3aaf | 9116 | } |
e70236a8 JB |
9117 | } |
9118 | ||
b690e96c JB |
9119 | /* |
9120 | * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend, | |
9121 | * resume, or other times. This quirk makes sure that's the case for | |
9122 | * affected systems. | |
9123 | */ | |
0206e353 | 9124 | static void quirk_pipea_force(struct drm_device *dev) |
b690e96c JB |
9125 | { |
9126 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9127 | ||
9128 | dev_priv->quirks |= QUIRK_PIPEA_FORCE; | |
bc0daf48 | 9129 | DRM_INFO("applying pipe a force quirk\n"); |
b690e96c JB |
9130 | } |
9131 | ||
435793df KP |
9132 | /* |
9133 | * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason | |
9134 | */ | |
9135 | static void quirk_ssc_force_disable(struct drm_device *dev) | |
9136 | { | |
9137 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9138 | dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE; | |
bc0daf48 | 9139 | DRM_INFO("applying lvds SSC disable quirk\n"); |
435793df KP |
9140 | } |
9141 | ||
4dca20ef | 9142 | /* |
5a15ab5b CE |
9143 | * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight |
9144 | * brightness value | |
4dca20ef CE |
9145 | */ |
9146 | static void quirk_invert_brightness(struct drm_device *dev) | |
9147 | { | |
9148 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9149 | dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS; | |
bc0daf48 | 9150 | DRM_INFO("applying inverted panel brightness quirk\n"); |
435793df KP |
9151 | } |
9152 | ||
b690e96c JB |
9153 | struct intel_quirk { |
9154 | int device; | |
9155 | int subsystem_vendor; | |
9156 | int subsystem_device; | |
9157 | void (*hook)(struct drm_device *dev); | |
9158 | }; | |
9159 | ||
5f85f176 EE |
9160 | /* For systems that don't have a meaningful PCI subdevice/subvendor ID */ |
9161 | struct intel_dmi_quirk { | |
9162 | void (*hook)(struct drm_device *dev); | |
9163 | const struct dmi_system_id (*dmi_id_list)[]; | |
9164 | }; | |
9165 | ||
9166 | static int intel_dmi_reverse_brightness(const struct dmi_system_id *id) | |
9167 | { | |
9168 | DRM_INFO("Backlight polarity reversed on %s\n", id->ident); | |
9169 | return 1; | |
9170 | } | |
9171 | ||
9172 | static const struct intel_dmi_quirk intel_dmi_quirks[] = { | |
9173 | { | |
9174 | .dmi_id_list = &(const struct dmi_system_id[]) { | |
9175 | { | |
9176 | .callback = intel_dmi_reverse_brightness, | |
9177 | .ident = "NCR Corporation", | |
9178 | .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"), | |
9179 | DMI_MATCH(DMI_PRODUCT_NAME, ""), | |
9180 | }, | |
9181 | }, | |
9182 | { } /* terminating entry */ | |
9183 | }, | |
9184 | .hook = quirk_invert_brightness, | |
9185 | }, | |
9186 | }; | |
9187 | ||
c43b5634 | 9188 | static struct intel_quirk intel_quirks[] = { |
b690e96c | 9189 | /* HP Mini needs pipe A force quirk (LP: #322104) */ |
0206e353 | 9190 | { 0x27ae, 0x103c, 0x361a, quirk_pipea_force }, |
b690e96c | 9191 | |
b690e96c JB |
9192 | /* Toshiba Protege R-205, S-209 needs pipe A force quirk */ |
9193 | { 0x2592, 0x1179, 0x0001, quirk_pipea_force }, | |
9194 | ||
b690e96c JB |
9195 | /* ThinkPad T60 needs pipe A force quirk (bug #16494) */ |
9196 | { 0x2782, 0x17aa, 0x201a, quirk_pipea_force }, | |
9197 | ||
ccd0d36e | 9198 | /* 830/845 need to leave pipe A & dpll A up */ |
b690e96c | 9199 | { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, |
dcdaed6e | 9200 | { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, |
435793df KP |
9201 | |
9202 | /* Lenovo U160 cannot use SSC on LVDS */ | |
9203 | { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable }, | |
070d329a MAS |
9204 | |
9205 | /* Sony Vaio Y cannot use SSC on LVDS */ | |
9206 | { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable }, | |
5a15ab5b CE |
9207 | |
9208 | /* Acer Aspire 5734Z must invert backlight brightness */ | |
9209 | { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness }, | |
1ffff603 JN |
9210 | |
9211 | /* Acer/eMachines G725 */ | |
9212 | { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness }, | |
01e3a8fe JN |
9213 | |
9214 | /* Acer/eMachines e725 */ | |
9215 | { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness }, | |
5559ecad JN |
9216 | |
9217 | /* Acer/Packard Bell NCL20 */ | |
9218 | { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness }, | |
ac4199e0 DV |
9219 | |
9220 | /* Acer Aspire 4736Z */ | |
9221 | { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness }, | |
b690e96c JB |
9222 | }; |
9223 | ||
9224 | static void intel_init_quirks(struct drm_device *dev) | |
9225 | { | |
9226 | struct pci_dev *d = dev->pdev; | |
9227 | int i; | |
9228 | ||
9229 | for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { | |
9230 | struct intel_quirk *q = &intel_quirks[i]; | |
9231 | ||
9232 | if (d->device == q->device && | |
9233 | (d->subsystem_vendor == q->subsystem_vendor || | |
9234 | q->subsystem_vendor == PCI_ANY_ID) && | |
9235 | (d->subsystem_device == q->subsystem_device || | |
9236 | q->subsystem_device == PCI_ANY_ID)) | |
9237 | q->hook(dev); | |
9238 | } | |
5f85f176 EE |
9239 | for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) { |
9240 | if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0) | |
9241 | intel_dmi_quirks[i].hook(dev); | |
9242 | } | |
b690e96c JB |
9243 | } |
9244 | ||
9cce37f4 JB |
9245 | /* Disable the VGA plane that we never use */ |
9246 | static void i915_disable_vga(struct drm_device *dev) | |
9247 | { | |
9248 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9249 | u8 sr1; | |
766aa1c4 | 9250 | u32 vga_reg = i915_vgacntrl_reg(dev); |
9cce37f4 JB |
9251 | |
9252 | vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO); | |
3fdcf431 | 9253 | outb(SR01, VGA_SR_INDEX); |
9cce37f4 JB |
9254 | sr1 = inb(VGA_SR_DATA); |
9255 | outb(sr1 | 1<<5, VGA_SR_DATA); | |
9256 | vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); | |
9257 | udelay(300); | |
9258 | ||
9259 | I915_WRITE(vga_reg, VGA_DISP_DISABLE); | |
9260 | POSTING_READ(vga_reg); | |
9261 | } | |
9262 | ||
f817586c DV |
9263 | void intel_modeset_init_hw(struct drm_device *dev) |
9264 | { | |
fa42e23c | 9265 | intel_init_power_well(dev); |
0232e927 | 9266 | |
a8f78b58 ED |
9267 | intel_prepare_ddi(dev); |
9268 | ||
f817586c DV |
9269 | intel_init_clock_gating(dev); |
9270 | ||
79f5b2c7 | 9271 | mutex_lock(&dev->struct_mutex); |
8090c6b9 | 9272 | intel_enable_gt_powersave(dev); |
79f5b2c7 | 9273 | mutex_unlock(&dev->struct_mutex); |
f817586c DV |
9274 | } |
9275 | ||
7d708ee4 ID |
9276 | void intel_modeset_suspend_hw(struct drm_device *dev) |
9277 | { | |
9278 | intel_suspend_hw(dev); | |
9279 | } | |
9280 | ||
79e53945 JB |
9281 | void intel_modeset_init(struct drm_device *dev) |
9282 | { | |
652c393a | 9283 | struct drm_i915_private *dev_priv = dev->dev_private; |
7f1f3851 | 9284 | int i, j, ret; |
79e53945 JB |
9285 | |
9286 | drm_mode_config_init(dev); | |
9287 | ||
9288 | dev->mode_config.min_width = 0; | |
9289 | dev->mode_config.min_height = 0; | |
9290 | ||
019d96cb DA |
9291 | dev->mode_config.preferred_depth = 24; |
9292 | dev->mode_config.prefer_shadow = 1; | |
9293 | ||
e6ecefaa | 9294 | dev->mode_config.funcs = &intel_mode_funcs; |
79e53945 | 9295 | |
b690e96c JB |
9296 | intel_init_quirks(dev); |
9297 | ||
1fa61106 ED |
9298 | intel_init_pm(dev); |
9299 | ||
e3c74757 BW |
9300 | if (INTEL_INFO(dev)->num_pipes == 0) |
9301 | return; | |
9302 | ||
e70236a8 JB |
9303 | intel_init_display(dev); |
9304 | ||
a6c45cf0 CW |
9305 | if (IS_GEN2(dev)) { |
9306 | dev->mode_config.max_width = 2048; | |
9307 | dev->mode_config.max_height = 2048; | |
9308 | } else if (IS_GEN3(dev)) { | |
5e4d6fa7 KP |
9309 | dev->mode_config.max_width = 4096; |
9310 | dev->mode_config.max_height = 4096; | |
79e53945 | 9311 | } else { |
a6c45cf0 CW |
9312 | dev->mode_config.max_width = 8192; |
9313 | dev->mode_config.max_height = 8192; | |
79e53945 | 9314 | } |
5d4545ae | 9315 | dev->mode_config.fb_base = dev_priv->gtt.mappable_base; |
79e53945 | 9316 | |
28c97730 | 9317 | DRM_DEBUG_KMS("%d display pipe%s available.\n", |
7eb552ae BW |
9318 | INTEL_INFO(dev)->num_pipes, |
9319 | INTEL_INFO(dev)->num_pipes > 1 ? "s" : ""); | |
79e53945 | 9320 | |
7eb552ae | 9321 | for (i = 0; i < INTEL_INFO(dev)->num_pipes; i++) { |
79e53945 | 9322 | intel_crtc_init(dev, i); |
7f1f3851 JB |
9323 | for (j = 0; j < dev_priv->num_plane; j++) { |
9324 | ret = intel_plane_init(dev, i, j); | |
9325 | if (ret) | |
06da8da2 VS |
9326 | DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n", |
9327 | pipe_name(i), sprite_name(i, j), ret); | |
7f1f3851 | 9328 | } |
79e53945 JB |
9329 | } |
9330 | ||
79f689aa | 9331 | intel_cpu_pll_init(dev); |
ee7b9f93 JB |
9332 | intel_pch_pll_init(dev); |
9333 | ||
9cce37f4 JB |
9334 | /* Just disable it once at startup */ |
9335 | i915_disable_vga(dev); | |
79e53945 | 9336 | intel_setup_outputs(dev); |
11be49eb CW |
9337 | |
9338 | /* Just in case the BIOS is doing something questionable. */ | |
9339 | intel_disable_fbc(dev); | |
2c7111db CW |
9340 | } |
9341 | ||
24929352 DV |
9342 | static void |
9343 | intel_connector_break_all_links(struct intel_connector *connector) | |
9344 | { | |
9345 | connector->base.dpms = DRM_MODE_DPMS_OFF; | |
9346 | connector->base.encoder = NULL; | |
9347 | connector->encoder->connectors_active = false; | |
9348 | connector->encoder->base.crtc = NULL; | |
9349 | } | |
9350 | ||
7fad798e DV |
9351 | static void intel_enable_pipe_a(struct drm_device *dev) |
9352 | { | |
9353 | struct intel_connector *connector; | |
9354 | struct drm_connector *crt = NULL; | |
9355 | struct intel_load_detect_pipe load_detect_temp; | |
9356 | ||
9357 | /* We can't just switch on the pipe A, we need to set things up with a | |
9358 | * proper mode and output configuration. As a gross hack, enable pipe A | |
9359 | * by enabling the load detect pipe once. */ | |
9360 | list_for_each_entry(connector, | |
9361 | &dev->mode_config.connector_list, | |
9362 | base.head) { | |
9363 | if (connector->encoder->type == INTEL_OUTPUT_ANALOG) { | |
9364 | crt = &connector->base; | |
9365 | break; | |
9366 | } | |
9367 | } | |
9368 | ||
9369 | if (!crt) | |
9370 | return; | |
9371 | ||
9372 | if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp)) | |
9373 | intel_release_load_detect_pipe(crt, &load_detect_temp); | |
9374 | ||
652c393a | 9375 | |
7fad798e DV |
9376 | } |
9377 | ||
fa555837 DV |
9378 | static bool |
9379 | intel_check_plane_mapping(struct intel_crtc *crtc) | |
9380 | { | |
7eb552ae BW |
9381 | struct drm_device *dev = crtc->base.dev; |
9382 | struct drm_i915_private *dev_priv = dev->dev_private; | |
fa555837 DV |
9383 | u32 reg, val; |
9384 | ||
7eb552ae | 9385 | if (INTEL_INFO(dev)->num_pipes == 1) |
fa555837 DV |
9386 | return true; |
9387 | ||
9388 | reg = DSPCNTR(!crtc->plane); | |
9389 | val = I915_READ(reg); | |
9390 | ||
9391 | if ((val & DISPLAY_PLANE_ENABLE) && | |
9392 | (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe)) | |
9393 | return false; | |
9394 | ||
9395 | return true; | |
9396 | } | |
9397 | ||
24929352 DV |
9398 | static void intel_sanitize_crtc(struct intel_crtc *crtc) |
9399 | { | |
9400 | struct drm_device *dev = crtc->base.dev; | |
9401 | struct drm_i915_private *dev_priv = dev->dev_private; | |
fa555837 | 9402 | u32 reg; |
24929352 | 9403 | |
24929352 | 9404 | /* Clear any frame start delays used for debugging left by the BIOS */ |
3b117c8f | 9405 | reg = PIPECONF(crtc->config.cpu_transcoder); |
24929352 DV |
9406 | I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK); |
9407 | ||
9408 | /* We need to sanitize the plane -> pipe mapping first because this will | |
fa555837 DV |
9409 | * disable the crtc (and hence change the state) if it is wrong. Note |
9410 | * that gen4+ has a fixed plane -> pipe mapping. */ | |
9411 | if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) { | |
24929352 DV |
9412 | struct intel_connector *connector; |
9413 | bool plane; | |
9414 | ||
24929352 DV |
9415 | DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n", |
9416 | crtc->base.base.id); | |
9417 | ||
9418 | /* Pipe has the wrong plane attached and the plane is active. | |
9419 | * Temporarily change the plane mapping and disable everything | |
9420 | * ... */ | |
9421 | plane = crtc->plane; | |
9422 | crtc->plane = !plane; | |
9423 | dev_priv->display.crtc_disable(&crtc->base); | |
9424 | crtc->plane = plane; | |
9425 | ||
9426 | /* ... and break all links. */ | |
9427 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
9428 | base.head) { | |
9429 | if (connector->encoder->base.crtc != &crtc->base) | |
9430 | continue; | |
9431 | ||
9432 | intel_connector_break_all_links(connector); | |
9433 | } | |
9434 | ||
9435 | WARN_ON(crtc->active); | |
9436 | crtc->base.enabled = false; | |
9437 | } | |
24929352 | 9438 | |
7fad798e DV |
9439 | if (dev_priv->quirks & QUIRK_PIPEA_FORCE && |
9440 | crtc->pipe == PIPE_A && !crtc->active) { | |
9441 | /* BIOS forgot to enable pipe A, this mostly happens after | |
9442 | * resume. Force-enable the pipe to fix this, the update_dpms | |
9443 | * call below we restore the pipe to the right state, but leave | |
9444 | * the required bits on. */ | |
9445 | intel_enable_pipe_a(dev); | |
9446 | } | |
9447 | ||
24929352 DV |
9448 | /* Adjust the state of the output pipe according to whether we |
9449 | * have active connectors/encoders. */ | |
9450 | intel_crtc_update_dpms(&crtc->base); | |
9451 | ||
9452 | if (crtc->active != crtc->base.enabled) { | |
9453 | struct intel_encoder *encoder; | |
9454 | ||
9455 | /* This can happen either due to bugs in the get_hw_state | |
9456 | * functions or because the pipe is force-enabled due to the | |
9457 | * pipe A quirk. */ | |
9458 | DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n", | |
9459 | crtc->base.base.id, | |
9460 | crtc->base.enabled ? "enabled" : "disabled", | |
9461 | crtc->active ? "enabled" : "disabled"); | |
9462 | ||
9463 | crtc->base.enabled = crtc->active; | |
9464 | ||
9465 | /* Because we only establish the connector -> encoder -> | |
9466 | * crtc links if something is active, this means the | |
9467 | * crtc is now deactivated. Break the links. connector | |
9468 | * -> encoder links are only establish when things are | |
9469 | * actually up, hence no need to break them. */ | |
9470 | WARN_ON(crtc->active); | |
9471 | ||
9472 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) { | |
9473 | WARN_ON(encoder->connectors_active); | |
9474 | encoder->base.crtc = NULL; | |
9475 | } | |
9476 | } | |
9477 | } | |
9478 | ||
9479 | static void intel_sanitize_encoder(struct intel_encoder *encoder) | |
9480 | { | |
9481 | struct intel_connector *connector; | |
9482 | struct drm_device *dev = encoder->base.dev; | |
9483 | ||
9484 | /* We need to check both for a crtc link (meaning that the | |
9485 | * encoder is active and trying to read from a pipe) and the | |
9486 | * pipe itself being active. */ | |
9487 | bool has_active_crtc = encoder->base.crtc && | |
9488 | to_intel_crtc(encoder->base.crtc)->active; | |
9489 | ||
9490 | if (encoder->connectors_active && !has_active_crtc) { | |
9491 | DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n", | |
9492 | encoder->base.base.id, | |
9493 | drm_get_encoder_name(&encoder->base)); | |
9494 | ||
9495 | /* Connector is active, but has no active pipe. This is | |
9496 | * fallout from our resume register restoring. Disable | |
9497 | * the encoder manually again. */ | |
9498 | if (encoder->base.crtc) { | |
9499 | DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n", | |
9500 | encoder->base.base.id, | |
9501 | drm_get_encoder_name(&encoder->base)); | |
9502 | encoder->disable(encoder); | |
9503 | } | |
9504 | ||
9505 | /* Inconsistent output/port/pipe state happens presumably due to | |
9506 | * a bug in one of the get_hw_state functions. Or someplace else | |
9507 | * in our code, like the register restore mess on resume. Clamp | |
9508 | * things to off as a safer default. */ | |
9509 | list_for_each_entry(connector, | |
9510 | &dev->mode_config.connector_list, | |
9511 | base.head) { | |
9512 | if (connector->encoder != encoder) | |
9513 | continue; | |
9514 | ||
9515 | intel_connector_break_all_links(connector); | |
9516 | } | |
9517 | } | |
9518 | /* Enabled encoders without active connectors will be fixed in | |
9519 | * the crtc fixup. */ | |
9520 | } | |
9521 | ||
44cec740 | 9522 | void i915_redisable_vga(struct drm_device *dev) |
0fde901f KM |
9523 | { |
9524 | struct drm_i915_private *dev_priv = dev->dev_private; | |
766aa1c4 | 9525 | u32 vga_reg = i915_vgacntrl_reg(dev); |
0fde901f KM |
9526 | |
9527 | if (I915_READ(vga_reg) != VGA_DISP_DISABLE) { | |
9528 | DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n"); | |
209d5211 | 9529 | i915_disable_vga(dev); |
0fde901f KM |
9530 | } |
9531 | } | |
9532 | ||
24929352 DV |
9533 | /* Scan out the current hw modeset state, sanitizes it and maps it into the drm |
9534 | * and i915 state tracking structures. */ | |
45e2b5f6 DV |
9535 | void intel_modeset_setup_hw_state(struct drm_device *dev, |
9536 | bool force_restore) | |
24929352 DV |
9537 | { |
9538 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9539 | enum pipe pipe; | |
b5644d05 | 9540 | struct drm_plane *plane; |
24929352 DV |
9541 | struct intel_crtc *crtc; |
9542 | struct intel_encoder *encoder; | |
9543 | struct intel_connector *connector; | |
9544 | ||
0e8ffe1b DV |
9545 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, |
9546 | base.head) { | |
88adfff1 | 9547 | memset(&crtc->config, 0, sizeof(crtc->config)); |
3b117c8f | 9548 | |
0e8ffe1b DV |
9549 | crtc->active = dev_priv->display.get_pipe_config(crtc, |
9550 | &crtc->config); | |
24929352 DV |
9551 | |
9552 | crtc->base.enabled = crtc->active; | |
9553 | ||
9554 | DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n", | |
9555 | crtc->base.base.id, | |
9556 | crtc->active ? "enabled" : "disabled"); | |
9557 | } | |
9558 | ||
affa9354 | 9559 | if (HAS_DDI(dev)) |
6441ab5f PZ |
9560 | intel_ddi_setup_hw_pll_state(dev); |
9561 | ||
24929352 DV |
9562 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
9563 | base.head) { | |
9564 | pipe = 0; | |
9565 | ||
9566 | if (encoder->get_hw_state(encoder, &pipe)) { | |
045ac3b5 JB |
9567 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); |
9568 | encoder->base.crtc = &crtc->base; | |
9569 | if (encoder->get_config) | |
9570 | encoder->get_config(encoder, &crtc->config); | |
24929352 DV |
9571 | } else { |
9572 | encoder->base.crtc = NULL; | |
9573 | } | |
9574 | ||
9575 | encoder->connectors_active = false; | |
9576 | DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe=%i\n", | |
9577 | encoder->base.base.id, | |
9578 | drm_get_encoder_name(&encoder->base), | |
9579 | encoder->base.crtc ? "enabled" : "disabled", | |
9580 | pipe); | |
9581 | } | |
9582 | ||
9583 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
9584 | base.head) { | |
9585 | if (connector->get_hw_state(connector)) { | |
9586 | connector->base.dpms = DRM_MODE_DPMS_ON; | |
9587 | connector->encoder->connectors_active = true; | |
9588 | connector->base.encoder = &connector->encoder->base; | |
9589 | } else { | |
9590 | connector->base.dpms = DRM_MODE_DPMS_OFF; | |
9591 | connector->base.encoder = NULL; | |
9592 | } | |
9593 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n", | |
9594 | connector->base.base.id, | |
9595 | drm_get_connector_name(&connector->base), | |
9596 | connector->base.encoder ? "enabled" : "disabled"); | |
9597 | } | |
9598 | ||
9599 | /* HW state is read out, now we need to sanitize this mess. */ | |
9600 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
9601 | base.head) { | |
9602 | intel_sanitize_encoder(encoder); | |
9603 | } | |
9604 | ||
9605 | for_each_pipe(pipe) { | |
9606 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); | |
9607 | intel_sanitize_crtc(crtc); | |
c0b03411 | 9608 | intel_dump_pipe_config(crtc, &crtc->config, "[setup_hw_state]"); |
24929352 | 9609 | } |
9a935856 | 9610 | |
45e2b5f6 | 9611 | if (force_restore) { |
f30da187 DV |
9612 | /* |
9613 | * We need to use raw interfaces for restoring state to avoid | |
9614 | * checking (bogus) intermediate states. | |
9615 | */ | |
45e2b5f6 | 9616 | for_each_pipe(pipe) { |
b5644d05 JB |
9617 | struct drm_crtc *crtc = |
9618 | dev_priv->pipe_to_crtc_mapping[pipe]; | |
f30da187 DV |
9619 | |
9620 | __intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, | |
9621 | crtc->fb); | |
45e2b5f6 | 9622 | } |
b5644d05 JB |
9623 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) |
9624 | intel_plane_restore(plane); | |
0fde901f KM |
9625 | |
9626 | i915_redisable_vga(dev); | |
45e2b5f6 DV |
9627 | } else { |
9628 | intel_modeset_update_staged_output_state(dev); | |
9629 | } | |
8af6cf88 DV |
9630 | |
9631 | intel_modeset_check_state(dev); | |
2e938892 DV |
9632 | |
9633 | drm_mode_config_reset(dev); | |
2c7111db CW |
9634 | } |
9635 | ||
9636 | void intel_modeset_gem_init(struct drm_device *dev) | |
9637 | { | |
1833b134 | 9638 | intel_modeset_init_hw(dev); |
02e792fb DV |
9639 | |
9640 | intel_setup_overlay(dev); | |
24929352 | 9641 | |
45e2b5f6 | 9642 | intel_modeset_setup_hw_state(dev, false); |
79e53945 JB |
9643 | } |
9644 | ||
9645 | void intel_modeset_cleanup(struct drm_device *dev) | |
9646 | { | |
652c393a JB |
9647 | struct drm_i915_private *dev_priv = dev->dev_private; |
9648 | struct drm_crtc *crtc; | |
9649 | struct intel_crtc *intel_crtc; | |
9650 | ||
fd0c0642 DV |
9651 | /* |
9652 | * Interrupts and polling as the first thing to avoid creating havoc. | |
9653 | * Too much stuff here (turning of rps, connectors, ...) would | |
9654 | * experience fancy races otherwise. | |
9655 | */ | |
9656 | drm_irq_uninstall(dev); | |
9657 | cancel_work_sync(&dev_priv->hotplug_work); | |
9658 | /* | |
9659 | * Due to the hpd irq storm handling the hotplug work can re-arm the | |
9660 | * poll handlers. Hence disable polling after hpd handling is shut down. | |
9661 | */ | |
f87ea761 | 9662 | drm_kms_helper_poll_fini(dev); |
fd0c0642 | 9663 | |
652c393a JB |
9664 | mutex_lock(&dev->struct_mutex); |
9665 | ||
723bfd70 JB |
9666 | intel_unregister_dsm_handler(); |
9667 | ||
652c393a JB |
9668 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
9669 | /* Skip inactive CRTCs */ | |
9670 | if (!crtc->fb) | |
9671 | continue; | |
9672 | ||
9673 | intel_crtc = to_intel_crtc(crtc); | |
3dec0095 | 9674 | intel_increase_pllclock(crtc); |
652c393a JB |
9675 | } |
9676 | ||
973d04f9 | 9677 | intel_disable_fbc(dev); |
e70236a8 | 9678 | |
8090c6b9 | 9679 | intel_disable_gt_powersave(dev); |
0cdab21f | 9680 | |
930ebb46 DV |
9681 | ironlake_teardown_rc6(dev); |
9682 | ||
69341a5e KH |
9683 | mutex_unlock(&dev->struct_mutex); |
9684 | ||
1630fe75 CW |
9685 | /* flush any delayed tasks or pending work */ |
9686 | flush_scheduled_work(); | |
9687 | ||
dc652f90 JN |
9688 | /* destroy backlight, if any, before the connectors */ |
9689 | intel_panel_destroy_backlight(dev); | |
9690 | ||
79e53945 | 9691 | drm_mode_config_cleanup(dev); |
4d7bb011 DV |
9692 | |
9693 | intel_cleanup_overlay(dev); | |
79e53945 JB |
9694 | } |
9695 | ||
f1c79df3 ZW |
9696 | /* |
9697 | * Return which encoder is currently attached for connector. | |
9698 | */ | |
df0e9248 | 9699 | struct drm_encoder *intel_best_encoder(struct drm_connector *connector) |
79e53945 | 9700 | { |
df0e9248 CW |
9701 | return &intel_attached_encoder(connector)->base; |
9702 | } | |
f1c79df3 | 9703 | |
df0e9248 CW |
9704 | void intel_connector_attach_encoder(struct intel_connector *connector, |
9705 | struct intel_encoder *encoder) | |
9706 | { | |
9707 | connector->encoder = encoder; | |
9708 | drm_mode_connector_attach_encoder(&connector->base, | |
9709 | &encoder->base); | |
79e53945 | 9710 | } |
28d52043 DA |
9711 | |
9712 | /* | |
9713 | * set vga decode state - true == enable VGA decode | |
9714 | */ | |
9715 | int intel_modeset_vga_set_state(struct drm_device *dev, bool state) | |
9716 | { | |
9717 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9718 | u16 gmch_ctrl; | |
9719 | ||
9720 | pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl); | |
9721 | if (state) | |
9722 | gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE; | |
9723 | else | |
9724 | gmch_ctrl |= INTEL_GMCH_VGA_DISABLE; | |
9725 | pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl); | |
9726 | return 0; | |
9727 | } | |
c4a1d9e4 CW |
9728 | |
9729 | #ifdef CONFIG_DEBUG_FS | |
9730 | #include <linux/seq_file.h> | |
9731 | ||
9732 | struct intel_display_error_state { | |
ff57f1b0 PZ |
9733 | |
9734 | u32 power_well_driver; | |
9735 | ||
c4a1d9e4 CW |
9736 | struct intel_cursor_error_state { |
9737 | u32 control; | |
9738 | u32 position; | |
9739 | u32 base; | |
9740 | u32 size; | |
52331309 | 9741 | } cursor[I915_MAX_PIPES]; |
c4a1d9e4 CW |
9742 | |
9743 | struct intel_pipe_error_state { | |
ff57f1b0 | 9744 | enum transcoder cpu_transcoder; |
c4a1d9e4 CW |
9745 | u32 conf; |
9746 | u32 source; | |
9747 | ||
9748 | u32 htotal; | |
9749 | u32 hblank; | |
9750 | u32 hsync; | |
9751 | u32 vtotal; | |
9752 | u32 vblank; | |
9753 | u32 vsync; | |
52331309 | 9754 | } pipe[I915_MAX_PIPES]; |
c4a1d9e4 CW |
9755 | |
9756 | struct intel_plane_error_state { | |
9757 | u32 control; | |
9758 | u32 stride; | |
9759 | u32 size; | |
9760 | u32 pos; | |
9761 | u32 addr; | |
9762 | u32 surface; | |
9763 | u32 tile_offset; | |
52331309 | 9764 | } plane[I915_MAX_PIPES]; |
c4a1d9e4 CW |
9765 | }; |
9766 | ||
9767 | struct intel_display_error_state * | |
9768 | intel_display_capture_error_state(struct drm_device *dev) | |
9769 | { | |
0206e353 | 9770 | drm_i915_private_t *dev_priv = dev->dev_private; |
c4a1d9e4 | 9771 | struct intel_display_error_state *error; |
702e7a56 | 9772 | enum transcoder cpu_transcoder; |
c4a1d9e4 CW |
9773 | int i; |
9774 | ||
9775 | error = kmalloc(sizeof(*error), GFP_ATOMIC); | |
9776 | if (error == NULL) | |
9777 | return NULL; | |
9778 | ||
ff57f1b0 PZ |
9779 | if (HAS_POWER_WELL(dev)) |
9780 | error->power_well_driver = I915_READ(HSW_PWR_WELL_DRIVER); | |
9781 | ||
52331309 | 9782 | for_each_pipe(i) { |
702e7a56 | 9783 | cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, i); |
ff57f1b0 | 9784 | error->pipe[i].cpu_transcoder = cpu_transcoder; |
702e7a56 | 9785 | |
a18c4c3d PZ |
9786 | if (INTEL_INFO(dev)->gen <= 6 || IS_VALLEYVIEW(dev)) { |
9787 | error->cursor[i].control = I915_READ(CURCNTR(i)); | |
9788 | error->cursor[i].position = I915_READ(CURPOS(i)); | |
9789 | error->cursor[i].base = I915_READ(CURBASE(i)); | |
9790 | } else { | |
9791 | error->cursor[i].control = I915_READ(CURCNTR_IVB(i)); | |
9792 | error->cursor[i].position = I915_READ(CURPOS_IVB(i)); | |
9793 | error->cursor[i].base = I915_READ(CURBASE_IVB(i)); | |
9794 | } | |
c4a1d9e4 CW |
9795 | |
9796 | error->plane[i].control = I915_READ(DSPCNTR(i)); | |
9797 | error->plane[i].stride = I915_READ(DSPSTRIDE(i)); | |
80ca378b | 9798 | if (INTEL_INFO(dev)->gen <= 3) { |
51889b35 | 9799 | error->plane[i].size = I915_READ(DSPSIZE(i)); |
80ca378b PZ |
9800 | error->plane[i].pos = I915_READ(DSPPOS(i)); |
9801 | } | |
ca291363 PZ |
9802 | if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev)) |
9803 | error->plane[i].addr = I915_READ(DSPADDR(i)); | |
c4a1d9e4 CW |
9804 | if (INTEL_INFO(dev)->gen >= 4) { |
9805 | error->plane[i].surface = I915_READ(DSPSURF(i)); | |
9806 | error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i)); | |
9807 | } | |
9808 | ||
702e7a56 | 9809 | error->pipe[i].conf = I915_READ(PIPECONF(cpu_transcoder)); |
c4a1d9e4 | 9810 | error->pipe[i].source = I915_READ(PIPESRC(i)); |
fe2b8f9d PZ |
9811 | error->pipe[i].htotal = I915_READ(HTOTAL(cpu_transcoder)); |
9812 | error->pipe[i].hblank = I915_READ(HBLANK(cpu_transcoder)); | |
9813 | error->pipe[i].hsync = I915_READ(HSYNC(cpu_transcoder)); | |
9814 | error->pipe[i].vtotal = I915_READ(VTOTAL(cpu_transcoder)); | |
9815 | error->pipe[i].vblank = I915_READ(VBLANK(cpu_transcoder)); | |
9816 | error->pipe[i].vsync = I915_READ(VSYNC(cpu_transcoder)); | |
c4a1d9e4 CW |
9817 | } |
9818 | ||
12d217c7 PZ |
9819 | /* In the code above we read the registers without checking if the power |
9820 | * well was on, so here we have to clear the FPGA_DBG_RM_NOCLAIM bit to | |
9821 | * prevent the next I915_WRITE from detecting it and printing an error | |
9822 | * message. */ | |
9823 | if (HAS_POWER_WELL(dev)) | |
9824 | I915_WRITE_NOTRACE(FPGA_DBG, FPGA_DBG_RM_NOCLAIM); | |
9825 | ||
c4a1d9e4 CW |
9826 | return error; |
9827 | } | |
9828 | ||
edc3d884 MK |
9829 | #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__) |
9830 | ||
c4a1d9e4 | 9831 | void |
edc3d884 | 9832 | intel_display_print_error_state(struct drm_i915_error_state_buf *m, |
c4a1d9e4 CW |
9833 | struct drm_device *dev, |
9834 | struct intel_display_error_state *error) | |
9835 | { | |
9836 | int i; | |
9837 | ||
edc3d884 | 9838 | err_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes); |
ff57f1b0 | 9839 | if (HAS_POWER_WELL(dev)) |
edc3d884 | 9840 | err_printf(m, "PWR_WELL_CTL2: %08x\n", |
ff57f1b0 | 9841 | error->power_well_driver); |
52331309 | 9842 | for_each_pipe(i) { |
edc3d884 MK |
9843 | err_printf(m, "Pipe [%d]:\n", i); |
9844 | err_printf(m, " CPU transcoder: %c\n", | |
ff57f1b0 | 9845 | transcoder_name(error->pipe[i].cpu_transcoder)); |
edc3d884 MK |
9846 | err_printf(m, " CONF: %08x\n", error->pipe[i].conf); |
9847 | err_printf(m, " SRC: %08x\n", error->pipe[i].source); | |
9848 | err_printf(m, " HTOTAL: %08x\n", error->pipe[i].htotal); | |
9849 | err_printf(m, " HBLANK: %08x\n", error->pipe[i].hblank); | |
9850 | err_printf(m, " HSYNC: %08x\n", error->pipe[i].hsync); | |
9851 | err_printf(m, " VTOTAL: %08x\n", error->pipe[i].vtotal); | |
9852 | err_printf(m, " VBLANK: %08x\n", error->pipe[i].vblank); | |
9853 | err_printf(m, " VSYNC: %08x\n", error->pipe[i].vsync); | |
9854 | ||
9855 | err_printf(m, "Plane [%d]:\n", i); | |
9856 | err_printf(m, " CNTR: %08x\n", error->plane[i].control); | |
9857 | err_printf(m, " STRIDE: %08x\n", error->plane[i].stride); | |
80ca378b | 9858 | if (INTEL_INFO(dev)->gen <= 3) { |
edc3d884 MK |
9859 | err_printf(m, " SIZE: %08x\n", error->plane[i].size); |
9860 | err_printf(m, " POS: %08x\n", error->plane[i].pos); | |
80ca378b | 9861 | } |
4b71a570 | 9862 | if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev)) |
edc3d884 | 9863 | err_printf(m, " ADDR: %08x\n", error->plane[i].addr); |
c4a1d9e4 | 9864 | if (INTEL_INFO(dev)->gen >= 4) { |
edc3d884 MK |
9865 | err_printf(m, " SURF: %08x\n", error->plane[i].surface); |
9866 | err_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset); | |
c4a1d9e4 CW |
9867 | } |
9868 | ||
edc3d884 MK |
9869 | err_printf(m, "Cursor [%d]:\n", i); |
9870 | err_printf(m, " CNTR: %08x\n", error->cursor[i].control); | |
9871 | err_printf(m, " POS: %08x\n", error->cursor[i].position); | |
9872 | err_printf(m, " BASE: %08x\n", error->cursor[i].base); | |
c4a1d9e4 CW |
9873 | } |
9874 | } | |
9875 | #endif |