2 * Copyright © 2006-2007 Intel Corporation
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:
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
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.
24 * Eric Anholt <eric@anholt.net>
27 #include <linux/dmi.h>
28 #include <linux/module.h>
29 #include <linux/input.h>
30 #include <linux/i2c.h>
31 #include <linux/kernel.h>
32 #include <linux/slab.h>
33 #include <linux/vgaarb.h>
34 #include <drm/drm_edid.h>
36 #include "intel_drv.h"
37 #include <drm/i915_drm.h>
39 #include "i915_trace.h"
40 #include <drm/drm_atomic.h>
41 #include <drm/drm_atomic_helper.h>
42 #include <drm/drm_dp_helper.h>
43 #include <drm/drm_crtc_helper.h>
44 #include <drm/drm_plane_helper.h>
45 #include <drm/drm_rect.h>
46 #include <linux/dma_remapping.h>
48 /* Primary plane formats supported by all gen */
49 #define COMMON_PRIMARY_FORMATS \
52 DRM_FORMAT_XRGB8888, \
55 /* Primary plane formats for gen <= 3 */
56 static const uint32_t intel_primary_formats_gen2
[] = {
57 COMMON_PRIMARY_FORMATS
,
62 /* Primary plane formats for gen >= 4 */
63 static const uint32_t intel_primary_formats_gen4
[] = {
64 COMMON_PRIMARY_FORMATS
, \
67 DRM_FORMAT_XRGB2101010
,
68 DRM_FORMAT_ARGB2101010
,
69 DRM_FORMAT_XBGR2101010
,
70 DRM_FORMAT_ABGR2101010
,
74 static const uint32_t intel_cursor_formats
[] = {
78 static void intel_crtc_update_cursor(struct drm_crtc
*crtc
, bool on
);
80 static void i9xx_crtc_clock_get(struct intel_crtc
*crtc
,
81 struct intel_crtc_state
*pipe_config
);
82 static void ironlake_pch_clock_get(struct intel_crtc
*crtc
,
83 struct intel_crtc_state
*pipe_config
);
85 static int intel_set_mode(struct drm_crtc
*crtc
, struct drm_display_mode
*mode
,
86 int x
, int y
, struct drm_framebuffer
*old_fb
,
87 struct drm_atomic_state
*state
);
88 static int intel_framebuffer_init(struct drm_device
*dev
,
89 struct intel_framebuffer
*ifb
,
90 struct drm_mode_fb_cmd2
*mode_cmd
,
91 struct drm_i915_gem_object
*obj
);
92 static void i9xx_set_pipeconf(struct intel_crtc
*intel_crtc
);
93 static void intel_set_pipe_timings(struct intel_crtc
*intel_crtc
);
94 static void intel_cpu_transcoder_set_m_n(struct intel_crtc
*crtc
,
95 struct intel_link_m_n
*m_n
,
96 struct intel_link_m_n
*m2_n2
);
97 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
);
98 static void haswell_set_pipeconf(struct drm_crtc
*crtc
);
99 static void intel_set_pipe_csc(struct drm_crtc
*crtc
);
100 static void vlv_prepare_pll(struct intel_crtc
*crtc
,
101 const struct intel_crtc_state
*pipe_config
);
102 static void chv_prepare_pll(struct intel_crtc
*crtc
,
103 const struct intel_crtc_state
*pipe_config
);
104 static void intel_begin_crtc_commit(struct drm_crtc
*crtc
);
105 static void intel_finish_crtc_commit(struct drm_crtc
*crtc
);
107 static struct intel_encoder
*intel_find_encoder(struct intel_connector
*connector
, int pipe
)
109 if (!connector
->mst_port
)
110 return connector
->encoder
;
112 return &connector
->mst_port
->mst_encoders
[pipe
]->base
;
121 int p2_slow
, p2_fast
;
124 typedef struct intel_limit intel_limit_t
;
126 intel_range_t dot
, vco
, n
, m
, m1
, m2
, p
, p1
;
131 intel_pch_rawclk(struct drm_device
*dev
)
133 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
135 WARN_ON(!HAS_PCH_SPLIT(dev
));
137 return I915_READ(PCH_RAWCLK_FREQ
) & RAWCLK_FREQ_MASK
;
140 static inline u32
/* units of 100MHz */
141 intel_fdi_link_freq(struct drm_device
*dev
)
144 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
145 return (I915_READ(FDI_PLL_BIOS_0
) & FDI_PLL_FB_CLOCK_MASK
) + 2;
150 static const intel_limit_t intel_limits_i8xx_dac
= {
151 .dot
= { .min
= 25000, .max
= 350000 },
152 .vco
= { .min
= 908000, .max
= 1512000 },
153 .n
= { .min
= 2, .max
= 16 },
154 .m
= { .min
= 96, .max
= 140 },
155 .m1
= { .min
= 18, .max
= 26 },
156 .m2
= { .min
= 6, .max
= 16 },
157 .p
= { .min
= 4, .max
= 128 },
158 .p1
= { .min
= 2, .max
= 33 },
159 .p2
= { .dot_limit
= 165000,
160 .p2_slow
= 4, .p2_fast
= 2 },
163 static const intel_limit_t intel_limits_i8xx_dvo
= {
164 .dot
= { .min
= 25000, .max
= 350000 },
165 .vco
= { .min
= 908000, .max
= 1512000 },
166 .n
= { .min
= 2, .max
= 16 },
167 .m
= { .min
= 96, .max
= 140 },
168 .m1
= { .min
= 18, .max
= 26 },
169 .m2
= { .min
= 6, .max
= 16 },
170 .p
= { .min
= 4, .max
= 128 },
171 .p1
= { .min
= 2, .max
= 33 },
172 .p2
= { .dot_limit
= 165000,
173 .p2_slow
= 4, .p2_fast
= 4 },
176 static const intel_limit_t intel_limits_i8xx_lvds
= {
177 .dot
= { .min
= 25000, .max
= 350000 },
178 .vco
= { .min
= 908000, .max
= 1512000 },
179 .n
= { .min
= 2, .max
= 16 },
180 .m
= { .min
= 96, .max
= 140 },
181 .m1
= { .min
= 18, .max
= 26 },
182 .m2
= { .min
= 6, .max
= 16 },
183 .p
= { .min
= 4, .max
= 128 },
184 .p1
= { .min
= 1, .max
= 6 },
185 .p2
= { .dot_limit
= 165000,
186 .p2_slow
= 14, .p2_fast
= 7 },
189 static const intel_limit_t intel_limits_i9xx_sdvo
= {
190 .dot
= { .min
= 20000, .max
= 400000 },
191 .vco
= { .min
= 1400000, .max
= 2800000 },
192 .n
= { .min
= 1, .max
= 6 },
193 .m
= { .min
= 70, .max
= 120 },
194 .m1
= { .min
= 8, .max
= 18 },
195 .m2
= { .min
= 3, .max
= 7 },
196 .p
= { .min
= 5, .max
= 80 },
197 .p1
= { .min
= 1, .max
= 8 },
198 .p2
= { .dot_limit
= 200000,
199 .p2_slow
= 10, .p2_fast
= 5 },
202 static const intel_limit_t intel_limits_i9xx_lvds
= {
203 .dot
= { .min
= 20000, .max
= 400000 },
204 .vco
= { .min
= 1400000, .max
= 2800000 },
205 .n
= { .min
= 1, .max
= 6 },
206 .m
= { .min
= 70, .max
= 120 },
207 .m1
= { .min
= 8, .max
= 18 },
208 .m2
= { .min
= 3, .max
= 7 },
209 .p
= { .min
= 7, .max
= 98 },
210 .p1
= { .min
= 1, .max
= 8 },
211 .p2
= { .dot_limit
= 112000,
212 .p2_slow
= 14, .p2_fast
= 7 },
216 static const intel_limit_t intel_limits_g4x_sdvo
= {
217 .dot
= { .min
= 25000, .max
= 270000 },
218 .vco
= { .min
= 1750000, .max
= 3500000},
219 .n
= { .min
= 1, .max
= 4 },
220 .m
= { .min
= 104, .max
= 138 },
221 .m1
= { .min
= 17, .max
= 23 },
222 .m2
= { .min
= 5, .max
= 11 },
223 .p
= { .min
= 10, .max
= 30 },
224 .p1
= { .min
= 1, .max
= 3},
225 .p2
= { .dot_limit
= 270000,
231 static const intel_limit_t intel_limits_g4x_hdmi
= {
232 .dot
= { .min
= 22000, .max
= 400000 },
233 .vco
= { .min
= 1750000, .max
= 3500000},
234 .n
= { .min
= 1, .max
= 4 },
235 .m
= { .min
= 104, .max
= 138 },
236 .m1
= { .min
= 16, .max
= 23 },
237 .m2
= { .min
= 5, .max
= 11 },
238 .p
= { .min
= 5, .max
= 80 },
239 .p1
= { .min
= 1, .max
= 8},
240 .p2
= { .dot_limit
= 165000,
241 .p2_slow
= 10, .p2_fast
= 5 },
244 static const intel_limit_t intel_limits_g4x_single_channel_lvds
= {
245 .dot
= { .min
= 20000, .max
= 115000 },
246 .vco
= { .min
= 1750000, .max
= 3500000 },
247 .n
= { .min
= 1, .max
= 3 },
248 .m
= { .min
= 104, .max
= 138 },
249 .m1
= { .min
= 17, .max
= 23 },
250 .m2
= { .min
= 5, .max
= 11 },
251 .p
= { .min
= 28, .max
= 112 },
252 .p1
= { .min
= 2, .max
= 8 },
253 .p2
= { .dot_limit
= 0,
254 .p2_slow
= 14, .p2_fast
= 14
258 static const intel_limit_t intel_limits_g4x_dual_channel_lvds
= {
259 .dot
= { .min
= 80000, .max
= 224000 },
260 .vco
= { .min
= 1750000, .max
= 3500000 },
261 .n
= { .min
= 1, .max
= 3 },
262 .m
= { .min
= 104, .max
= 138 },
263 .m1
= { .min
= 17, .max
= 23 },
264 .m2
= { .min
= 5, .max
= 11 },
265 .p
= { .min
= 14, .max
= 42 },
266 .p1
= { .min
= 2, .max
= 6 },
267 .p2
= { .dot_limit
= 0,
268 .p2_slow
= 7, .p2_fast
= 7
272 static const intel_limit_t intel_limits_pineview_sdvo
= {
273 .dot
= { .min
= 20000, .max
= 400000},
274 .vco
= { .min
= 1700000, .max
= 3500000 },
275 /* Pineview's Ncounter is a ring counter */
276 .n
= { .min
= 3, .max
= 6 },
277 .m
= { .min
= 2, .max
= 256 },
278 /* Pineview only has one combined m divider, which we treat as m2. */
279 .m1
= { .min
= 0, .max
= 0 },
280 .m2
= { .min
= 0, .max
= 254 },
281 .p
= { .min
= 5, .max
= 80 },
282 .p1
= { .min
= 1, .max
= 8 },
283 .p2
= { .dot_limit
= 200000,
284 .p2_slow
= 10, .p2_fast
= 5 },
287 static const intel_limit_t intel_limits_pineview_lvds
= {
288 .dot
= { .min
= 20000, .max
= 400000 },
289 .vco
= { .min
= 1700000, .max
= 3500000 },
290 .n
= { .min
= 3, .max
= 6 },
291 .m
= { .min
= 2, .max
= 256 },
292 .m1
= { .min
= 0, .max
= 0 },
293 .m2
= { .min
= 0, .max
= 254 },
294 .p
= { .min
= 7, .max
= 112 },
295 .p1
= { .min
= 1, .max
= 8 },
296 .p2
= { .dot_limit
= 112000,
297 .p2_slow
= 14, .p2_fast
= 14 },
300 /* Ironlake / Sandybridge
302 * We calculate clock using (register_value + 2) for N/M1/M2, so here
303 * the range value for them is (actual_value - 2).
305 static const intel_limit_t intel_limits_ironlake_dac
= {
306 .dot
= { .min
= 25000, .max
= 350000 },
307 .vco
= { .min
= 1760000, .max
= 3510000 },
308 .n
= { .min
= 1, .max
= 5 },
309 .m
= { .min
= 79, .max
= 127 },
310 .m1
= { .min
= 12, .max
= 22 },
311 .m2
= { .min
= 5, .max
= 9 },
312 .p
= { .min
= 5, .max
= 80 },
313 .p1
= { .min
= 1, .max
= 8 },
314 .p2
= { .dot_limit
= 225000,
315 .p2_slow
= 10, .p2_fast
= 5 },
318 static const intel_limit_t intel_limits_ironlake_single_lvds
= {
319 .dot
= { .min
= 25000, .max
= 350000 },
320 .vco
= { .min
= 1760000, .max
= 3510000 },
321 .n
= { .min
= 1, .max
= 3 },
322 .m
= { .min
= 79, .max
= 118 },
323 .m1
= { .min
= 12, .max
= 22 },
324 .m2
= { .min
= 5, .max
= 9 },
325 .p
= { .min
= 28, .max
= 112 },
326 .p1
= { .min
= 2, .max
= 8 },
327 .p2
= { .dot_limit
= 225000,
328 .p2_slow
= 14, .p2_fast
= 14 },
331 static const intel_limit_t intel_limits_ironlake_dual_lvds
= {
332 .dot
= { .min
= 25000, .max
= 350000 },
333 .vco
= { .min
= 1760000, .max
= 3510000 },
334 .n
= { .min
= 1, .max
= 3 },
335 .m
= { .min
= 79, .max
= 127 },
336 .m1
= { .min
= 12, .max
= 22 },
337 .m2
= { .min
= 5, .max
= 9 },
338 .p
= { .min
= 14, .max
= 56 },
339 .p1
= { .min
= 2, .max
= 8 },
340 .p2
= { .dot_limit
= 225000,
341 .p2_slow
= 7, .p2_fast
= 7 },
344 /* LVDS 100mhz refclk limits. */
345 static const intel_limit_t intel_limits_ironlake_single_lvds_100m
= {
346 .dot
= { .min
= 25000, .max
= 350000 },
347 .vco
= { .min
= 1760000, .max
= 3510000 },
348 .n
= { .min
= 1, .max
= 2 },
349 .m
= { .min
= 79, .max
= 126 },
350 .m1
= { .min
= 12, .max
= 22 },
351 .m2
= { .min
= 5, .max
= 9 },
352 .p
= { .min
= 28, .max
= 112 },
353 .p1
= { .min
= 2, .max
= 8 },
354 .p2
= { .dot_limit
= 225000,
355 .p2_slow
= 14, .p2_fast
= 14 },
358 static const intel_limit_t intel_limits_ironlake_dual_lvds_100m
= {
359 .dot
= { .min
= 25000, .max
= 350000 },
360 .vco
= { .min
= 1760000, .max
= 3510000 },
361 .n
= { .min
= 1, .max
= 3 },
362 .m
= { .min
= 79, .max
= 126 },
363 .m1
= { .min
= 12, .max
= 22 },
364 .m2
= { .min
= 5, .max
= 9 },
365 .p
= { .min
= 14, .max
= 42 },
366 .p1
= { .min
= 2, .max
= 6 },
367 .p2
= { .dot_limit
= 225000,
368 .p2_slow
= 7, .p2_fast
= 7 },
371 static const intel_limit_t intel_limits_vlv
= {
373 * These are the data rate limits (measured in fast clocks)
374 * since those are the strictest limits we have. The fast
375 * clock and actual rate limits are more relaxed, so checking
376 * them would make no difference.
378 .dot
= { .min
= 25000 * 5, .max
= 270000 * 5 },
379 .vco
= { .min
= 4000000, .max
= 6000000 },
380 .n
= { .min
= 1, .max
= 7 },
381 .m1
= { .min
= 2, .max
= 3 },
382 .m2
= { .min
= 11, .max
= 156 },
383 .p1
= { .min
= 2, .max
= 3 },
384 .p2
= { .p2_slow
= 2, .p2_fast
= 20 }, /* slow=min, fast=max */
387 static const intel_limit_t intel_limits_chv
= {
389 * These are the data rate limits (measured in fast clocks)
390 * since those are the strictest limits we have. The fast
391 * clock and actual rate limits are more relaxed, so checking
392 * them would make no difference.
394 .dot
= { .min
= 25000 * 5, .max
= 540000 * 5},
395 .vco
= { .min
= 4800000, .max
= 6480000 },
396 .n
= { .min
= 1, .max
= 1 },
397 .m1
= { .min
= 2, .max
= 2 },
398 .m2
= { .min
= 24 << 22, .max
= 175 << 22 },
399 .p1
= { .min
= 2, .max
= 4 },
400 .p2
= { .p2_slow
= 1, .p2_fast
= 14 },
403 static void vlv_clock(int refclk
, intel_clock_t
*clock
)
405 clock
->m
= clock
->m1
* clock
->m2
;
406 clock
->p
= clock
->p1
* clock
->p2
;
407 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
409 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
);
410 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
414 * Returns whether any output on the specified pipe is of the specified type
416 bool intel_pipe_has_type(struct intel_crtc
*crtc
, enum intel_output_type type
)
418 struct drm_device
*dev
= crtc
->base
.dev
;
419 struct intel_encoder
*encoder
;
421 for_each_encoder_on_crtc(dev
, &crtc
->base
, encoder
)
422 if (encoder
->type
== type
)
429 * Returns whether any output on the specified pipe will have the specified
430 * type after a staged modeset is complete, i.e., the same as
431 * intel_pipe_has_type() but looking at encoder->new_crtc instead of
434 static bool intel_pipe_will_have_type(const struct intel_crtc_state
*crtc_state
,
437 struct drm_atomic_state
*state
= crtc_state
->base
.state
;
438 struct drm_connector_state
*connector_state
;
439 struct intel_encoder
*encoder
;
440 int i
, num_connectors
= 0;
442 for (i
= 0; i
< state
->num_connector
; i
++) {
443 if (!state
->connectors
[i
])
446 connector_state
= state
->connector_states
[i
];
447 if (connector_state
->crtc
!= crtc_state
->base
.crtc
)
452 encoder
= to_intel_encoder(connector_state
->best_encoder
);
453 if (encoder
->type
== type
)
457 WARN_ON(num_connectors
== 0);
462 static const intel_limit_t
*
463 intel_ironlake_limit(struct intel_crtc_state
*crtc_state
, int refclk
)
465 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
466 const intel_limit_t
*limit
;
468 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
469 if (intel_is_dual_link_lvds(dev
)) {
470 if (refclk
== 100000)
471 limit
= &intel_limits_ironlake_dual_lvds_100m
;
473 limit
= &intel_limits_ironlake_dual_lvds
;
475 if (refclk
== 100000)
476 limit
= &intel_limits_ironlake_single_lvds_100m
;
478 limit
= &intel_limits_ironlake_single_lvds
;
481 limit
= &intel_limits_ironlake_dac
;
486 static const intel_limit_t
*
487 intel_g4x_limit(struct intel_crtc_state
*crtc_state
)
489 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
490 const intel_limit_t
*limit
;
492 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
493 if (intel_is_dual_link_lvds(dev
))
494 limit
= &intel_limits_g4x_dual_channel_lvds
;
496 limit
= &intel_limits_g4x_single_channel_lvds
;
497 } else if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_HDMI
) ||
498 intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_ANALOG
)) {
499 limit
= &intel_limits_g4x_hdmi
;
500 } else if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_SDVO
)) {
501 limit
= &intel_limits_g4x_sdvo
;
502 } else /* The option is for other outputs */
503 limit
= &intel_limits_i9xx_sdvo
;
508 static const intel_limit_t
*
509 intel_limit(struct intel_crtc_state
*crtc_state
, int refclk
)
511 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
512 const intel_limit_t
*limit
;
514 if (HAS_PCH_SPLIT(dev
))
515 limit
= intel_ironlake_limit(crtc_state
, refclk
);
516 else if (IS_G4X(dev
)) {
517 limit
= intel_g4x_limit(crtc_state
);
518 } else if (IS_PINEVIEW(dev
)) {
519 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
))
520 limit
= &intel_limits_pineview_lvds
;
522 limit
= &intel_limits_pineview_sdvo
;
523 } else if (IS_CHERRYVIEW(dev
)) {
524 limit
= &intel_limits_chv
;
525 } else if (IS_VALLEYVIEW(dev
)) {
526 limit
= &intel_limits_vlv
;
527 } else if (!IS_GEN2(dev
)) {
528 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
))
529 limit
= &intel_limits_i9xx_lvds
;
531 limit
= &intel_limits_i9xx_sdvo
;
533 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
))
534 limit
= &intel_limits_i8xx_lvds
;
535 else if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_DVO
))
536 limit
= &intel_limits_i8xx_dvo
;
538 limit
= &intel_limits_i8xx_dac
;
543 /* m1 is reserved as 0 in Pineview, n is a ring counter */
544 static void pineview_clock(int refclk
, intel_clock_t
*clock
)
546 clock
->m
= clock
->m2
+ 2;
547 clock
->p
= clock
->p1
* clock
->p2
;
548 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
550 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
);
551 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
554 static uint32_t i9xx_dpll_compute_m(struct dpll
*dpll
)
556 return 5 * (dpll
->m1
+ 2) + (dpll
->m2
+ 2);
559 static void i9xx_clock(int refclk
, intel_clock_t
*clock
)
561 clock
->m
= i9xx_dpll_compute_m(clock
);
562 clock
->p
= clock
->p1
* clock
->p2
;
563 if (WARN_ON(clock
->n
+ 2 == 0 || clock
->p
== 0))
565 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
+ 2);
566 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
569 static void chv_clock(int refclk
, intel_clock_t
*clock
)
571 clock
->m
= clock
->m1
* clock
->m2
;
572 clock
->p
= clock
->p1
* clock
->p2
;
573 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
575 clock
->vco
= DIV_ROUND_CLOSEST_ULL((uint64_t)refclk
* clock
->m
,
577 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
580 #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
582 * Returns whether the given set of divisors are valid for a given refclk with
583 * the given connectors.
586 static bool intel_PLL_is_valid(struct drm_device
*dev
,
587 const intel_limit_t
*limit
,
588 const intel_clock_t
*clock
)
590 if (clock
->n
< limit
->n
.min
|| limit
->n
.max
< clock
->n
)
591 INTELPllInvalid("n out of range\n");
592 if (clock
->p1
< limit
->p1
.min
|| limit
->p1
.max
< clock
->p1
)
593 INTELPllInvalid("p1 out of range\n");
594 if (clock
->m2
< limit
->m2
.min
|| limit
->m2
.max
< clock
->m2
)
595 INTELPllInvalid("m2 out of range\n");
596 if (clock
->m1
< limit
->m1
.min
|| limit
->m1
.max
< clock
->m1
)
597 INTELPllInvalid("m1 out of range\n");
599 if (!IS_PINEVIEW(dev
) && !IS_VALLEYVIEW(dev
))
600 if (clock
->m1
<= clock
->m2
)
601 INTELPllInvalid("m1 <= m2\n");
603 if (!IS_VALLEYVIEW(dev
)) {
604 if (clock
->p
< limit
->p
.min
|| limit
->p
.max
< clock
->p
)
605 INTELPllInvalid("p out of range\n");
606 if (clock
->m
< limit
->m
.min
|| limit
->m
.max
< clock
->m
)
607 INTELPllInvalid("m out of range\n");
610 if (clock
->vco
< limit
->vco
.min
|| limit
->vco
.max
< clock
->vco
)
611 INTELPllInvalid("vco out of range\n");
612 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
613 * connector, etc., rather than just a single range.
615 if (clock
->dot
< limit
->dot
.min
|| limit
->dot
.max
< clock
->dot
)
616 INTELPllInvalid("dot out of range\n");
622 i9xx_find_best_dpll(const intel_limit_t
*limit
,
623 struct intel_crtc_state
*crtc_state
,
624 int target
, int refclk
, intel_clock_t
*match_clock
,
625 intel_clock_t
*best_clock
)
627 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
628 struct drm_device
*dev
= crtc
->base
.dev
;
632 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
634 * For LVDS just rely on its current settings for dual-channel.
635 * We haven't figured out how to reliably set up different
636 * single/dual channel state, if we even can.
638 if (intel_is_dual_link_lvds(dev
))
639 clock
.p2
= limit
->p2
.p2_fast
;
641 clock
.p2
= limit
->p2
.p2_slow
;
643 if (target
< limit
->p2
.dot_limit
)
644 clock
.p2
= limit
->p2
.p2_slow
;
646 clock
.p2
= limit
->p2
.p2_fast
;
649 memset(best_clock
, 0, sizeof(*best_clock
));
651 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
653 for (clock
.m2
= limit
->m2
.min
;
654 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
655 if (clock
.m2
>= clock
.m1
)
657 for (clock
.n
= limit
->n
.min
;
658 clock
.n
<= limit
->n
.max
; clock
.n
++) {
659 for (clock
.p1
= limit
->p1
.min
;
660 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
663 i9xx_clock(refclk
, &clock
);
664 if (!intel_PLL_is_valid(dev
, limit
,
668 clock
.p
!= match_clock
->p
)
671 this_err
= abs(clock
.dot
- target
);
672 if (this_err
< err
) {
681 return (err
!= target
);
685 pnv_find_best_dpll(const intel_limit_t
*limit
,
686 struct intel_crtc_state
*crtc_state
,
687 int target
, int refclk
, intel_clock_t
*match_clock
,
688 intel_clock_t
*best_clock
)
690 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
691 struct drm_device
*dev
= crtc
->base
.dev
;
695 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
697 * For LVDS just rely on its current settings for dual-channel.
698 * We haven't figured out how to reliably set up different
699 * single/dual channel state, if we even can.
701 if (intel_is_dual_link_lvds(dev
))
702 clock
.p2
= limit
->p2
.p2_fast
;
704 clock
.p2
= limit
->p2
.p2_slow
;
706 if (target
< limit
->p2
.dot_limit
)
707 clock
.p2
= limit
->p2
.p2_slow
;
709 clock
.p2
= limit
->p2
.p2_fast
;
712 memset(best_clock
, 0, sizeof(*best_clock
));
714 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
716 for (clock
.m2
= limit
->m2
.min
;
717 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
718 for (clock
.n
= limit
->n
.min
;
719 clock
.n
<= limit
->n
.max
; clock
.n
++) {
720 for (clock
.p1
= limit
->p1
.min
;
721 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
724 pineview_clock(refclk
, &clock
);
725 if (!intel_PLL_is_valid(dev
, limit
,
729 clock
.p
!= match_clock
->p
)
732 this_err
= abs(clock
.dot
- target
);
733 if (this_err
< err
) {
742 return (err
!= target
);
746 g4x_find_best_dpll(const intel_limit_t
*limit
,
747 struct intel_crtc_state
*crtc_state
,
748 int target
, int refclk
, intel_clock_t
*match_clock
,
749 intel_clock_t
*best_clock
)
751 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
752 struct drm_device
*dev
= crtc
->base
.dev
;
756 /* approximately equals target * 0.00585 */
757 int err_most
= (target
>> 8) + (target
>> 9);
760 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
761 if (intel_is_dual_link_lvds(dev
))
762 clock
.p2
= limit
->p2
.p2_fast
;
764 clock
.p2
= limit
->p2
.p2_slow
;
766 if (target
< limit
->p2
.dot_limit
)
767 clock
.p2
= limit
->p2
.p2_slow
;
769 clock
.p2
= limit
->p2
.p2_fast
;
772 memset(best_clock
, 0, sizeof(*best_clock
));
773 max_n
= limit
->n
.max
;
774 /* based on hardware requirement, prefer smaller n to precision */
775 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
776 /* based on hardware requirement, prefere larger m1,m2 */
777 for (clock
.m1
= limit
->m1
.max
;
778 clock
.m1
>= limit
->m1
.min
; clock
.m1
--) {
779 for (clock
.m2
= limit
->m2
.max
;
780 clock
.m2
>= limit
->m2
.min
; clock
.m2
--) {
781 for (clock
.p1
= limit
->p1
.max
;
782 clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
785 i9xx_clock(refclk
, &clock
);
786 if (!intel_PLL_is_valid(dev
, limit
,
790 this_err
= abs(clock
.dot
- target
);
791 if (this_err
< err_most
) {
805 * Check if the calculated PLL configuration is more optimal compared to the
806 * best configuration and error found so far. Return the calculated error.
808 static bool vlv_PLL_is_optimal(struct drm_device
*dev
, int target_freq
,
809 const intel_clock_t
*calculated_clock
,
810 const intel_clock_t
*best_clock
,
811 unsigned int best_error_ppm
,
812 unsigned int *error_ppm
)
815 * For CHV ignore the error and consider only the P value.
816 * Prefer a bigger P value based on HW requirements.
818 if (IS_CHERRYVIEW(dev
)) {
821 return calculated_clock
->p
> best_clock
->p
;
824 if (WARN_ON_ONCE(!target_freq
))
827 *error_ppm
= div_u64(1000000ULL *
828 abs(target_freq
- calculated_clock
->dot
),
831 * Prefer a better P value over a better (smaller) error if the error
832 * is small. Ensure this preference for future configurations too by
833 * setting the error to 0.
835 if (*error_ppm
< 100 && calculated_clock
->p
> best_clock
->p
) {
841 return *error_ppm
+ 10 < best_error_ppm
;
845 vlv_find_best_dpll(const intel_limit_t
*limit
,
846 struct intel_crtc_state
*crtc_state
,
847 int target
, int refclk
, intel_clock_t
*match_clock
,
848 intel_clock_t
*best_clock
)
850 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
851 struct drm_device
*dev
= crtc
->base
.dev
;
853 unsigned int bestppm
= 1000000;
854 /* min update 19.2 MHz */
855 int max_n
= min(limit
->n
.max
, refclk
/ 19200);
858 target
*= 5; /* fast clock */
860 memset(best_clock
, 0, sizeof(*best_clock
));
862 /* based on hardware requirement, prefer smaller n to precision */
863 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
864 for (clock
.p1
= limit
->p1
.max
; clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
865 for (clock
.p2
= limit
->p2
.p2_fast
; clock
.p2
>= limit
->p2
.p2_slow
;
866 clock
.p2
-= clock
.p2
> 10 ? 2 : 1) {
867 clock
.p
= clock
.p1
* clock
.p2
;
868 /* based on hardware requirement, prefer bigger m1,m2 values */
869 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
; clock
.m1
++) {
872 clock
.m2
= DIV_ROUND_CLOSEST(target
* clock
.p
* clock
.n
,
875 vlv_clock(refclk
, &clock
);
877 if (!intel_PLL_is_valid(dev
, limit
,
881 if (!vlv_PLL_is_optimal(dev
, target
,
899 chv_find_best_dpll(const intel_limit_t
*limit
,
900 struct intel_crtc_state
*crtc_state
,
901 int target
, int refclk
, intel_clock_t
*match_clock
,
902 intel_clock_t
*best_clock
)
904 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
905 struct drm_device
*dev
= crtc
->base
.dev
;
906 unsigned int best_error_ppm
;
911 memset(best_clock
, 0, sizeof(*best_clock
));
912 best_error_ppm
= 1000000;
915 * Based on hardware doc, the n always set to 1, and m1 always
916 * set to 2. If requires to support 200Mhz refclk, we need to
917 * revisit this because n may not 1 anymore.
919 clock
.n
= 1, clock
.m1
= 2;
920 target
*= 5; /* fast clock */
922 for (clock
.p1
= limit
->p1
.max
; clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
923 for (clock
.p2
= limit
->p2
.p2_fast
;
924 clock
.p2
>= limit
->p2
.p2_slow
;
925 clock
.p2
-= clock
.p2
> 10 ? 2 : 1) {
926 unsigned int error_ppm
;
928 clock
.p
= clock
.p1
* clock
.p2
;
930 m2
= DIV_ROUND_CLOSEST_ULL(((uint64_t)target
* clock
.p
*
931 clock
.n
) << 22, refclk
* clock
.m1
);
933 if (m2
> INT_MAX
/clock
.m1
)
938 chv_clock(refclk
, &clock
);
940 if (!intel_PLL_is_valid(dev
, limit
, &clock
))
943 if (!vlv_PLL_is_optimal(dev
, target
, &clock
, best_clock
,
944 best_error_ppm
, &error_ppm
))
948 best_error_ppm
= error_ppm
;
956 bool intel_crtc_active(struct drm_crtc
*crtc
)
958 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
960 /* Be paranoid as we can arrive here with only partial
961 * state retrieved from the hardware during setup.
963 * We can ditch the adjusted_mode.crtc_clock check as soon
964 * as Haswell has gained clock readout/fastboot support.
966 * We can ditch the crtc->primary->fb check as soon as we can
967 * properly reconstruct framebuffers.
969 * FIXME: The intel_crtc->active here should be switched to
970 * crtc->state->active once we have proper CRTC states wired up
973 return intel_crtc
->active
&& crtc
->primary
->state
->fb
&&
974 intel_crtc
->config
->base
.adjusted_mode
.crtc_clock
;
977 enum transcoder
intel_pipe_to_cpu_transcoder(struct drm_i915_private
*dev_priv
,
980 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
981 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
983 return intel_crtc
->config
->cpu_transcoder
;
986 static bool pipe_dsl_stopped(struct drm_device
*dev
, enum pipe pipe
)
988 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
989 u32 reg
= PIPEDSL(pipe
);
994 line_mask
= DSL_LINEMASK_GEN2
;
996 line_mask
= DSL_LINEMASK_GEN3
;
998 line1
= I915_READ(reg
) & line_mask
;
1000 line2
= I915_READ(reg
) & line_mask
;
1002 return line1
== line2
;
1006 * intel_wait_for_pipe_off - wait for pipe to turn off
1007 * @crtc: crtc whose pipe to wait for
1009 * After disabling a pipe, we can't wait for vblank in the usual way,
1010 * spinning on the vblank interrupt status bit, since we won't actually
1011 * see an interrupt when the pipe is disabled.
1013 * On Gen4 and above:
1014 * wait for the pipe register state bit to turn off
1017 * wait for the display line value to settle (it usually
1018 * ends up stopping at the start of the next frame).
1021 static void intel_wait_for_pipe_off(struct intel_crtc
*crtc
)
1023 struct drm_device
*dev
= crtc
->base
.dev
;
1024 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1025 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
1026 enum pipe pipe
= crtc
->pipe
;
1028 if (INTEL_INFO(dev
)->gen
>= 4) {
1029 int reg
= PIPECONF(cpu_transcoder
);
1031 /* Wait for the Pipe State to go off */
1032 if (wait_for((I915_READ(reg
) & I965_PIPECONF_ACTIVE
) == 0,
1034 WARN(1, "pipe_off wait timed out\n");
1036 /* Wait for the display line to settle */
1037 if (wait_for(pipe_dsl_stopped(dev
, pipe
), 100))
1038 WARN(1, "pipe_off wait timed out\n");
1043 * ibx_digital_port_connected - is the specified port connected?
1044 * @dev_priv: i915 private structure
1045 * @port: the port to test
1047 * Returns true if @port is connected, false otherwise.
1049 bool ibx_digital_port_connected(struct drm_i915_private
*dev_priv
,
1050 struct intel_digital_port
*port
)
1054 if (HAS_PCH_IBX(dev_priv
->dev
)) {
1055 switch (port
->port
) {
1057 bit
= SDE_PORTB_HOTPLUG
;
1060 bit
= SDE_PORTC_HOTPLUG
;
1063 bit
= SDE_PORTD_HOTPLUG
;
1069 switch (port
->port
) {
1071 bit
= SDE_PORTB_HOTPLUG_CPT
;
1074 bit
= SDE_PORTC_HOTPLUG_CPT
;
1077 bit
= SDE_PORTD_HOTPLUG_CPT
;
1084 return I915_READ(SDEISR
) & bit
;
1087 static const char *state_string(bool enabled
)
1089 return enabled
? "on" : "off";
1092 /* Only for pre-ILK configs */
1093 void assert_pll(struct drm_i915_private
*dev_priv
,
1094 enum pipe pipe
, bool state
)
1101 val
= I915_READ(reg
);
1102 cur_state
= !!(val
& DPLL_VCO_ENABLE
);
1103 I915_STATE_WARN(cur_state
!= state
,
1104 "PLL state assertion failure (expected %s, current %s)\n",
1105 state_string(state
), state_string(cur_state
));
1108 /* XXX: the dsi pll is shared between MIPI DSI ports */
1109 static void assert_dsi_pll(struct drm_i915_private
*dev_priv
, bool state
)
1114 mutex_lock(&dev_priv
->dpio_lock
);
1115 val
= vlv_cck_read(dev_priv
, CCK_REG_DSI_PLL_CONTROL
);
1116 mutex_unlock(&dev_priv
->dpio_lock
);
1118 cur_state
= val
& DSI_PLL_VCO_EN
;
1119 I915_STATE_WARN(cur_state
!= state
,
1120 "DSI PLL state assertion failure (expected %s, current %s)\n",
1121 state_string(state
), state_string(cur_state
));
1123 #define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true)
1124 #define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false)
1126 struct intel_shared_dpll
*
1127 intel_crtc_to_shared_dpll(struct intel_crtc
*crtc
)
1129 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
1131 if (crtc
->config
->shared_dpll
< 0)
1134 return &dev_priv
->shared_dplls
[crtc
->config
->shared_dpll
];
1138 void assert_shared_dpll(struct drm_i915_private
*dev_priv
,
1139 struct intel_shared_dpll
*pll
,
1143 struct intel_dpll_hw_state hw_state
;
1146 "asserting DPLL %s with no DPLL\n", state_string(state
)))
1149 cur_state
= pll
->get_hw_state(dev_priv
, pll
, &hw_state
);
1150 I915_STATE_WARN(cur_state
!= state
,
1151 "%s assertion failure (expected %s, current %s)\n",
1152 pll
->name
, state_string(state
), state_string(cur_state
));
1155 static void assert_fdi_tx(struct drm_i915_private
*dev_priv
,
1156 enum pipe pipe
, bool state
)
1161 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1164 if (HAS_DDI(dev_priv
->dev
)) {
1165 /* DDI does not have a specific FDI_TX register */
1166 reg
= TRANS_DDI_FUNC_CTL(cpu_transcoder
);
1167 val
= I915_READ(reg
);
1168 cur_state
= !!(val
& TRANS_DDI_FUNC_ENABLE
);
1170 reg
= FDI_TX_CTL(pipe
);
1171 val
= I915_READ(reg
);
1172 cur_state
= !!(val
& FDI_TX_ENABLE
);
1174 I915_STATE_WARN(cur_state
!= state
,
1175 "FDI TX state assertion failure (expected %s, current %s)\n",
1176 state_string(state
), state_string(cur_state
));
1178 #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
1179 #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
1181 static void assert_fdi_rx(struct drm_i915_private
*dev_priv
,
1182 enum pipe pipe
, bool state
)
1188 reg
= FDI_RX_CTL(pipe
);
1189 val
= I915_READ(reg
);
1190 cur_state
= !!(val
& FDI_RX_ENABLE
);
1191 I915_STATE_WARN(cur_state
!= state
,
1192 "FDI RX state assertion failure (expected %s, current %s)\n",
1193 state_string(state
), state_string(cur_state
));
1195 #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
1196 #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
1198 static void assert_fdi_tx_pll_enabled(struct drm_i915_private
*dev_priv
,
1204 /* ILK FDI PLL is always enabled */
1205 if (INTEL_INFO(dev_priv
->dev
)->gen
== 5)
1208 /* On Haswell, DDI ports are responsible for the FDI PLL setup */
1209 if (HAS_DDI(dev_priv
->dev
))
1212 reg
= FDI_TX_CTL(pipe
);
1213 val
= I915_READ(reg
);
1214 I915_STATE_WARN(!(val
& FDI_TX_PLL_ENABLE
), "FDI TX PLL assertion failure, should be active but is disabled\n");
1217 void assert_fdi_rx_pll(struct drm_i915_private
*dev_priv
,
1218 enum pipe pipe
, bool state
)
1224 reg
= FDI_RX_CTL(pipe
);
1225 val
= I915_READ(reg
);
1226 cur_state
= !!(val
& FDI_RX_PLL_ENABLE
);
1227 I915_STATE_WARN(cur_state
!= state
,
1228 "FDI RX PLL assertion failure (expected %s, current %s)\n",
1229 state_string(state
), state_string(cur_state
));
1232 void assert_panel_unlocked(struct drm_i915_private
*dev_priv
,
1235 struct drm_device
*dev
= dev_priv
->dev
;
1238 enum pipe panel_pipe
= PIPE_A
;
1241 if (WARN_ON(HAS_DDI(dev
)))
1244 if (HAS_PCH_SPLIT(dev
)) {
1247 pp_reg
= PCH_PP_CONTROL
;
1248 port_sel
= I915_READ(PCH_PP_ON_DELAYS
) & PANEL_PORT_SELECT_MASK
;
1250 if (port_sel
== PANEL_PORT_SELECT_LVDS
&&
1251 I915_READ(PCH_LVDS
) & LVDS_PIPEB_SELECT
)
1252 panel_pipe
= PIPE_B
;
1253 /* XXX: else fix for eDP */
1254 } else if (IS_VALLEYVIEW(dev
)) {
1255 /* presumably write lock depends on pipe, not port select */
1256 pp_reg
= VLV_PIPE_PP_CONTROL(pipe
);
1259 pp_reg
= PP_CONTROL
;
1260 if (I915_READ(LVDS
) & LVDS_PIPEB_SELECT
)
1261 panel_pipe
= PIPE_B
;
1264 val
= I915_READ(pp_reg
);
1265 if (!(val
& PANEL_POWER_ON
) ||
1266 ((val
& PANEL_UNLOCK_MASK
) == PANEL_UNLOCK_REGS
))
1269 I915_STATE_WARN(panel_pipe
== pipe
&& locked
,
1270 "panel assertion failure, pipe %c regs locked\n",
1274 static void assert_cursor(struct drm_i915_private
*dev_priv
,
1275 enum pipe pipe
, bool state
)
1277 struct drm_device
*dev
= dev_priv
->dev
;
1280 if (IS_845G(dev
) || IS_I865G(dev
))
1281 cur_state
= I915_READ(_CURACNTR
) & CURSOR_ENABLE
;
1283 cur_state
= I915_READ(CURCNTR(pipe
)) & CURSOR_MODE
;
1285 I915_STATE_WARN(cur_state
!= state
,
1286 "cursor on pipe %c assertion failure (expected %s, current %s)\n",
1287 pipe_name(pipe
), state_string(state
), state_string(cur_state
));
1289 #define assert_cursor_enabled(d, p) assert_cursor(d, p, true)
1290 #define assert_cursor_disabled(d, p) assert_cursor(d, p, false)
1292 void assert_pipe(struct drm_i915_private
*dev_priv
,
1293 enum pipe pipe
, bool state
)
1298 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1301 /* if we need the pipe quirk it must be always on */
1302 if ((pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
1303 (pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
1306 if (!intel_display_power_is_enabled(dev_priv
,
1307 POWER_DOMAIN_TRANSCODER(cpu_transcoder
))) {
1310 reg
= PIPECONF(cpu_transcoder
);
1311 val
= I915_READ(reg
);
1312 cur_state
= !!(val
& PIPECONF_ENABLE
);
1315 I915_STATE_WARN(cur_state
!= state
,
1316 "pipe %c assertion failure (expected %s, current %s)\n",
1317 pipe_name(pipe
), state_string(state
), state_string(cur_state
));
1320 static void assert_plane(struct drm_i915_private
*dev_priv
,
1321 enum plane plane
, bool state
)
1327 reg
= DSPCNTR(plane
);
1328 val
= I915_READ(reg
);
1329 cur_state
= !!(val
& DISPLAY_PLANE_ENABLE
);
1330 I915_STATE_WARN(cur_state
!= state
,
1331 "plane %c assertion failure (expected %s, current %s)\n",
1332 plane_name(plane
), state_string(state
), state_string(cur_state
));
1335 #define assert_plane_enabled(d, p) assert_plane(d, p, true)
1336 #define assert_plane_disabled(d, p) assert_plane(d, p, false)
1338 static void assert_planes_disabled(struct drm_i915_private
*dev_priv
,
1341 struct drm_device
*dev
= dev_priv
->dev
;
1346 /* Primary planes are fixed to pipes on gen4+ */
1347 if (INTEL_INFO(dev
)->gen
>= 4) {
1348 reg
= DSPCNTR(pipe
);
1349 val
= I915_READ(reg
);
1350 I915_STATE_WARN(val
& DISPLAY_PLANE_ENABLE
,
1351 "plane %c assertion failure, should be disabled but not\n",
1356 /* Need to check both planes against the pipe */
1357 for_each_pipe(dev_priv
, i
) {
1359 val
= I915_READ(reg
);
1360 cur_pipe
= (val
& DISPPLANE_SEL_PIPE_MASK
) >>
1361 DISPPLANE_SEL_PIPE_SHIFT
;
1362 I915_STATE_WARN((val
& DISPLAY_PLANE_ENABLE
) && pipe
== cur_pipe
,
1363 "plane %c assertion failure, should be off on pipe %c but is still active\n",
1364 plane_name(i
), pipe_name(pipe
));
1368 static void assert_sprites_disabled(struct drm_i915_private
*dev_priv
,
1371 struct drm_device
*dev
= dev_priv
->dev
;
1375 if (INTEL_INFO(dev
)->gen
>= 9) {
1376 for_each_sprite(dev_priv
, pipe
, sprite
) {
1377 val
= I915_READ(PLANE_CTL(pipe
, sprite
));
1378 I915_STATE_WARN(val
& PLANE_CTL_ENABLE
,
1379 "plane %d assertion failure, should be off on pipe %c but is still active\n",
1380 sprite
, pipe_name(pipe
));
1382 } else if (IS_VALLEYVIEW(dev
)) {
1383 for_each_sprite(dev_priv
, pipe
, sprite
) {
1384 reg
= SPCNTR(pipe
, sprite
);
1385 val
= I915_READ(reg
);
1386 I915_STATE_WARN(val
& SP_ENABLE
,
1387 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1388 sprite_name(pipe
, sprite
), pipe_name(pipe
));
1390 } else if (INTEL_INFO(dev
)->gen
>= 7) {
1392 val
= I915_READ(reg
);
1393 I915_STATE_WARN(val
& SPRITE_ENABLE
,
1394 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1395 plane_name(pipe
), pipe_name(pipe
));
1396 } else if (INTEL_INFO(dev
)->gen
>= 5) {
1397 reg
= DVSCNTR(pipe
);
1398 val
= I915_READ(reg
);
1399 I915_STATE_WARN(val
& DVS_ENABLE
,
1400 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1401 plane_name(pipe
), pipe_name(pipe
));
1405 static void assert_vblank_disabled(struct drm_crtc
*crtc
)
1407 if (I915_STATE_WARN_ON(drm_crtc_vblank_get(crtc
) == 0))
1408 drm_crtc_vblank_put(crtc
);
1411 static void ibx_assert_pch_refclk_enabled(struct drm_i915_private
*dev_priv
)
1416 I915_STATE_WARN_ON(!(HAS_PCH_IBX(dev_priv
->dev
) || HAS_PCH_CPT(dev_priv
->dev
)));
1418 val
= I915_READ(PCH_DREF_CONTROL
);
1419 enabled
= !!(val
& (DREF_SSC_SOURCE_MASK
| DREF_NONSPREAD_SOURCE_MASK
|
1420 DREF_SUPERSPREAD_SOURCE_MASK
));
1421 I915_STATE_WARN(!enabled
, "PCH refclk assertion failure, should be active but is disabled\n");
1424 static void assert_pch_transcoder_disabled(struct drm_i915_private
*dev_priv
,
1431 reg
= PCH_TRANSCONF(pipe
);
1432 val
= I915_READ(reg
);
1433 enabled
= !!(val
& TRANS_ENABLE
);
1434 I915_STATE_WARN(enabled
,
1435 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1439 static bool dp_pipe_enabled(struct drm_i915_private
*dev_priv
,
1440 enum pipe pipe
, u32 port_sel
, u32 val
)
1442 if ((val
& DP_PORT_EN
) == 0)
1445 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1446 u32 trans_dp_ctl_reg
= TRANS_DP_CTL(pipe
);
1447 u32 trans_dp_ctl
= I915_READ(trans_dp_ctl_reg
);
1448 if ((trans_dp_ctl
& TRANS_DP_PORT_SEL_MASK
) != port_sel
)
1450 } else if (IS_CHERRYVIEW(dev_priv
->dev
)) {
1451 if ((val
& DP_PIPE_MASK_CHV
) != DP_PIPE_SELECT_CHV(pipe
))
1454 if ((val
& DP_PIPE_MASK
) != (pipe
<< 30))
1460 static bool hdmi_pipe_enabled(struct drm_i915_private
*dev_priv
,
1461 enum pipe pipe
, u32 val
)
1463 if ((val
& SDVO_ENABLE
) == 0)
1466 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1467 if ((val
& SDVO_PIPE_SEL_MASK_CPT
) != SDVO_PIPE_SEL_CPT(pipe
))
1469 } else if (IS_CHERRYVIEW(dev_priv
->dev
)) {
1470 if ((val
& SDVO_PIPE_SEL_MASK_CHV
) != SDVO_PIPE_SEL_CHV(pipe
))
1473 if ((val
& SDVO_PIPE_SEL_MASK
) != SDVO_PIPE_SEL(pipe
))
1479 static bool lvds_pipe_enabled(struct drm_i915_private
*dev_priv
,
1480 enum pipe pipe
, u32 val
)
1482 if ((val
& LVDS_PORT_EN
) == 0)
1485 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1486 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1489 if ((val
& LVDS_PIPE_MASK
) != LVDS_PIPE(pipe
))
1495 static bool adpa_pipe_enabled(struct drm_i915_private
*dev_priv
,
1496 enum pipe pipe
, u32 val
)
1498 if ((val
& ADPA_DAC_ENABLE
) == 0)
1500 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1501 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1504 if ((val
& ADPA_PIPE_SELECT_MASK
) != ADPA_PIPE_SELECT(pipe
))
1510 static void assert_pch_dp_disabled(struct drm_i915_private
*dev_priv
,
1511 enum pipe pipe
, int reg
, u32 port_sel
)
1513 u32 val
= I915_READ(reg
);
1514 I915_STATE_WARN(dp_pipe_enabled(dev_priv
, pipe
, port_sel
, val
),
1515 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
1516 reg
, pipe_name(pipe
));
1518 I915_STATE_WARN(HAS_PCH_IBX(dev_priv
->dev
) && (val
& DP_PORT_EN
) == 0
1519 && (val
& DP_PIPEB_SELECT
),
1520 "IBX PCH dp port still using transcoder B\n");
1523 static void assert_pch_hdmi_disabled(struct drm_i915_private
*dev_priv
,
1524 enum pipe pipe
, int reg
)
1526 u32 val
= I915_READ(reg
);
1527 I915_STATE_WARN(hdmi_pipe_enabled(dev_priv
, pipe
, val
),
1528 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
1529 reg
, pipe_name(pipe
));
1531 I915_STATE_WARN(HAS_PCH_IBX(dev_priv
->dev
) && (val
& SDVO_ENABLE
) == 0
1532 && (val
& SDVO_PIPE_B_SELECT
),
1533 "IBX PCH hdmi port still using transcoder B\n");
1536 static void assert_pch_ports_disabled(struct drm_i915_private
*dev_priv
,
1542 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_B
, TRANS_DP_PORT_SEL_B
);
1543 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_C
, TRANS_DP_PORT_SEL_C
);
1544 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_D
, TRANS_DP_PORT_SEL_D
);
1547 val
= I915_READ(reg
);
1548 I915_STATE_WARN(adpa_pipe_enabled(dev_priv
, pipe
, val
),
1549 "PCH VGA enabled on transcoder %c, should be disabled\n",
1553 val
= I915_READ(reg
);
1554 I915_STATE_WARN(lvds_pipe_enabled(dev_priv
, pipe
, val
),
1555 "PCH LVDS enabled on transcoder %c, should be disabled\n",
1558 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIB
);
1559 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIC
);
1560 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMID
);
1563 static void intel_init_dpio(struct drm_device
*dev
)
1565 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1567 if (!IS_VALLEYVIEW(dev
))
1571 * IOSF_PORT_DPIO is used for VLV x2 PHY (DP/HDMI B and C),
1572 * CHV x1 PHY (DP/HDMI D)
1573 * IOSF_PORT_DPIO_2 is used for CHV x2 PHY (DP/HDMI B and C)
1575 if (IS_CHERRYVIEW(dev
)) {
1576 DPIO_PHY_IOSF_PORT(DPIO_PHY0
) = IOSF_PORT_DPIO_2
;
1577 DPIO_PHY_IOSF_PORT(DPIO_PHY1
) = IOSF_PORT_DPIO
;
1579 DPIO_PHY_IOSF_PORT(DPIO_PHY0
) = IOSF_PORT_DPIO
;
1583 static void vlv_enable_pll(struct intel_crtc
*crtc
,
1584 const struct intel_crtc_state
*pipe_config
)
1586 struct drm_device
*dev
= crtc
->base
.dev
;
1587 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1588 int reg
= DPLL(crtc
->pipe
);
1589 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
1591 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1593 /* No really, not for ILK+ */
1594 BUG_ON(!IS_VALLEYVIEW(dev_priv
->dev
));
1596 /* PLL is protected by panel, make sure we can write it */
1597 if (IS_MOBILE(dev_priv
->dev
))
1598 assert_panel_unlocked(dev_priv
, crtc
->pipe
);
1600 I915_WRITE(reg
, dpll
);
1604 if (wait_for(((I915_READ(reg
) & DPLL_LOCK_VLV
) == DPLL_LOCK_VLV
), 1))
1605 DRM_ERROR("DPLL %d failed to lock\n", crtc
->pipe
);
1607 I915_WRITE(DPLL_MD(crtc
->pipe
), pipe_config
->dpll_hw_state
.dpll_md
);
1608 POSTING_READ(DPLL_MD(crtc
->pipe
));
1610 /* We do this three times for luck */
1611 I915_WRITE(reg
, dpll
);
1613 udelay(150); /* wait for warmup */
1614 I915_WRITE(reg
, dpll
);
1616 udelay(150); /* wait for warmup */
1617 I915_WRITE(reg
, dpll
);
1619 udelay(150); /* wait for warmup */
1622 static void chv_enable_pll(struct intel_crtc
*crtc
,
1623 const struct intel_crtc_state
*pipe_config
)
1625 struct drm_device
*dev
= crtc
->base
.dev
;
1626 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1627 int pipe
= crtc
->pipe
;
1628 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
1631 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1633 BUG_ON(!IS_CHERRYVIEW(dev_priv
->dev
));
1635 mutex_lock(&dev_priv
->dpio_lock
);
1637 /* Enable back the 10bit clock to display controller */
1638 tmp
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
));
1639 tmp
|= DPIO_DCLKP_EN
;
1640 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
), tmp
);
1643 * Need to wait > 100ns between dclkp clock enable bit and PLL enable.
1648 I915_WRITE(DPLL(pipe
), pipe_config
->dpll_hw_state
.dpll
);
1650 /* Check PLL is locked */
1651 if (wait_for(((I915_READ(DPLL(pipe
)) & DPLL_LOCK_VLV
) == DPLL_LOCK_VLV
), 1))
1652 DRM_ERROR("PLL %d failed to lock\n", pipe
);
1654 /* not sure when this should be written */
1655 I915_WRITE(DPLL_MD(pipe
), pipe_config
->dpll_hw_state
.dpll_md
);
1656 POSTING_READ(DPLL_MD(pipe
));
1658 mutex_unlock(&dev_priv
->dpio_lock
);
1661 static int intel_num_dvo_pipes(struct drm_device
*dev
)
1663 struct intel_crtc
*crtc
;
1666 for_each_intel_crtc(dev
, crtc
)
1667 count
+= crtc
->active
&&
1668 intel_pipe_has_type(crtc
, INTEL_OUTPUT_DVO
);
1673 static void i9xx_enable_pll(struct intel_crtc
*crtc
)
1675 struct drm_device
*dev
= crtc
->base
.dev
;
1676 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1677 int reg
= DPLL(crtc
->pipe
);
1678 u32 dpll
= crtc
->config
->dpll_hw_state
.dpll
;
1680 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1682 /* No really, not for ILK+ */
1683 BUG_ON(INTEL_INFO(dev
)->gen
>= 5);
1685 /* PLL is protected by panel, make sure we can write it */
1686 if (IS_MOBILE(dev
) && !IS_I830(dev
))
1687 assert_panel_unlocked(dev_priv
, crtc
->pipe
);
1689 /* Enable DVO 2x clock on both PLLs if necessary */
1690 if (IS_I830(dev
) && intel_num_dvo_pipes(dev
) > 0) {
1692 * It appears to be important that we don't enable this
1693 * for the current pipe before otherwise configuring the
1694 * PLL. No idea how this should be handled if multiple
1695 * DVO outputs are enabled simultaneosly.
1697 dpll
|= DPLL_DVO_2X_MODE
;
1698 I915_WRITE(DPLL(!crtc
->pipe
),
1699 I915_READ(DPLL(!crtc
->pipe
)) | DPLL_DVO_2X_MODE
);
1702 /* Wait for the clocks to stabilize. */
1706 if (INTEL_INFO(dev
)->gen
>= 4) {
1707 I915_WRITE(DPLL_MD(crtc
->pipe
),
1708 crtc
->config
->dpll_hw_state
.dpll_md
);
1710 /* The pixel multiplier can only be updated once the
1711 * DPLL is enabled and the clocks are stable.
1713 * So write it again.
1715 I915_WRITE(reg
, dpll
);
1718 /* We do this three times for luck */
1719 I915_WRITE(reg
, dpll
);
1721 udelay(150); /* wait for warmup */
1722 I915_WRITE(reg
, dpll
);
1724 udelay(150); /* wait for warmup */
1725 I915_WRITE(reg
, dpll
);
1727 udelay(150); /* wait for warmup */
1731 * i9xx_disable_pll - disable a PLL
1732 * @dev_priv: i915 private structure
1733 * @pipe: pipe PLL to disable
1735 * Disable the PLL for @pipe, making sure the pipe is off first.
1737 * Note! This is for pre-ILK only.
1739 static void i9xx_disable_pll(struct intel_crtc
*crtc
)
1741 struct drm_device
*dev
= crtc
->base
.dev
;
1742 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1743 enum pipe pipe
= crtc
->pipe
;
1745 /* Disable DVO 2x clock on both PLLs if necessary */
1747 intel_pipe_has_type(crtc
, INTEL_OUTPUT_DVO
) &&
1748 intel_num_dvo_pipes(dev
) == 1) {
1749 I915_WRITE(DPLL(PIPE_B
),
1750 I915_READ(DPLL(PIPE_B
)) & ~DPLL_DVO_2X_MODE
);
1751 I915_WRITE(DPLL(PIPE_A
),
1752 I915_READ(DPLL(PIPE_A
)) & ~DPLL_DVO_2X_MODE
);
1755 /* Don't disable pipe or pipe PLLs if needed */
1756 if ((pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
1757 (pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
1760 /* Make sure the pipe isn't still relying on us */
1761 assert_pipe_disabled(dev_priv
, pipe
);
1763 I915_WRITE(DPLL(pipe
), 0);
1764 POSTING_READ(DPLL(pipe
));
1767 static void vlv_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1771 /* Make sure the pipe isn't still relying on us */
1772 assert_pipe_disabled(dev_priv
, pipe
);
1775 * Leave integrated clock source and reference clock enabled for pipe B.
1776 * The latter is needed for VGA hotplug / manual detection.
1779 val
= DPLL_INTEGRATED_CRI_CLK_VLV
| DPLL_REFA_CLK_ENABLE_VLV
;
1780 I915_WRITE(DPLL(pipe
), val
);
1781 POSTING_READ(DPLL(pipe
));
1785 static void chv_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1787 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
1790 /* Make sure the pipe isn't still relying on us */
1791 assert_pipe_disabled(dev_priv
, pipe
);
1793 /* Set PLL en = 0 */
1794 val
= DPLL_SSC_REF_CLOCK_CHV
| DPLL_REFA_CLK_ENABLE_VLV
;
1796 val
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
1797 I915_WRITE(DPLL(pipe
), val
);
1798 POSTING_READ(DPLL(pipe
));
1800 mutex_lock(&dev_priv
->dpio_lock
);
1802 /* Disable 10bit clock to display controller */
1803 val
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
));
1804 val
&= ~DPIO_DCLKP_EN
;
1805 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
), val
);
1807 /* disable left/right clock distribution */
1808 if (pipe
!= PIPE_B
) {
1809 val
= vlv_dpio_read(dev_priv
, pipe
, _CHV_CMN_DW5_CH0
);
1810 val
&= ~(CHV_BUFLEFTENA1_MASK
| CHV_BUFRIGHTENA1_MASK
);
1811 vlv_dpio_write(dev_priv
, pipe
, _CHV_CMN_DW5_CH0
, val
);
1813 val
= vlv_dpio_read(dev_priv
, pipe
, _CHV_CMN_DW1_CH1
);
1814 val
&= ~(CHV_BUFLEFTENA2_MASK
| CHV_BUFRIGHTENA2_MASK
);
1815 vlv_dpio_write(dev_priv
, pipe
, _CHV_CMN_DW1_CH1
, val
);
1818 mutex_unlock(&dev_priv
->dpio_lock
);
1821 void vlv_wait_port_ready(struct drm_i915_private
*dev_priv
,
1822 struct intel_digital_port
*dport
)
1827 switch (dport
->port
) {
1829 port_mask
= DPLL_PORTB_READY_MASK
;
1833 port_mask
= DPLL_PORTC_READY_MASK
;
1837 port_mask
= DPLL_PORTD_READY_MASK
;
1838 dpll_reg
= DPIO_PHY_STATUS
;
1844 if (wait_for((I915_READ(dpll_reg
) & port_mask
) == 0, 1000))
1845 WARN(1, "timed out waiting for port %c ready: 0x%08x\n",
1846 port_name(dport
->port
), I915_READ(dpll_reg
));
1849 static void intel_prepare_shared_dpll(struct intel_crtc
*crtc
)
1851 struct drm_device
*dev
= crtc
->base
.dev
;
1852 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1853 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
1855 if (WARN_ON(pll
== NULL
))
1858 WARN_ON(!pll
->config
.crtc_mask
);
1859 if (pll
->active
== 0) {
1860 DRM_DEBUG_DRIVER("setting up %s\n", pll
->name
);
1862 assert_shared_dpll_disabled(dev_priv
, pll
);
1864 pll
->mode_set(dev_priv
, pll
);
1869 * intel_enable_shared_dpll - enable PCH PLL
1870 * @dev_priv: i915 private structure
1871 * @pipe: pipe PLL to enable
1873 * The PCH PLL needs to be enabled before the PCH transcoder, since it
1874 * drives the transcoder clock.
1876 static void intel_enable_shared_dpll(struct intel_crtc
*crtc
)
1878 struct drm_device
*dev
= crtc
->base
.dev
;
1879 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1880 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
1882 if (WARN_ON(pll
== NULL
))
1885 if (WARN_ON(pll
->config
.crtc_mask
== 0))
1888 DRM_DEBUG_KMS("enable %s (active %d, on? %d) for crtc %d\n",
1889 pll
->name
, pll
->active
, pll
->on
,
1890 crtc
->base
.base
.id
);
1892 if (pll
->active
++) {
1894 assert_shared_dpll_enabled(dev_priv
, pll
);
1899 intel_display_power_get(dev_priv
, POWER_DOMAIN_PLLS
);
1901 DRM_DEBUG_KMS("enabling %s\n", pll
->name
);
1902 pll
->enable(dev_priv
, pll
);
1906 static void intel_disable_shared_dpll(struct intel_crtc
*crtc
)
1908 struct drm_device
*dev
= crtc
->base
.dev
;
1909 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1910 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
1912 /* PCH only available on ILK+ */
1913 BUG_ON(INTEL_INFO(dev
)->gen
< 5);
1914 if (WARN_ON(pll
== NULL
))
1917 if (WARN_ON(pll
->config
.crtc_mask
== 0))
1920 DRM_DEBUG_KMS("disable %s (active %d, on? %d) for crtc %d\n",
1921 pll
->name
, pll
->active
, pll
->on
,
1922 crtc
->base
.base
.id
);
1924 if (WARN_ON(pll
->active
== 0)) {
1925 assert_shared_dpll_disabled(dev_priv
, pll
);
1929 assert_shared_dpll_enabled(dev_priv
, pll
);
1934 DRM_DEBUG_KMS("disabling %s\n", pll
->name
);
1935 pll
->disable(dev_priv
, pll
);
1938 intel_display_power_put(dev_priv
, POWER_DOMAIN_PLLS
);
1941 static void ironlake_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1944 struct drm_device
*dev
= dev_priv
->dev
;
1945 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
1946 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
1947 uint32_t reg
, val
, pipeconf_val
;
1949 /* PCH only available on ILK+ */
1950 BUG_ON(!HAS_PCH_SPLIT(dev
));
1952 /* Make sure PCH DPLL is enabled */
1953 assert_shared_dpll_enabled(dev_priv
,
1954 intel_crtc_to_shared_dpll(intel_crtc
));
1956 /* FDI must be feeding us bits for PCH ports */
1957 assert_fdi_tx_enabled(dev_priv
, pipe
);
1958 assert_fdi_rx_enabled(dev_priv
, pipe
);
1960 if (HAS_PCH_CPT(dev
)) {
1961 /* Workaround: Set the timing override bit before enabling the
1962 * pch transcoder. */
1963 reg
= TRANS_CHICKEN2(pipe
);
1964 val
= I915_READ(reg
);
1965 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
1966 I915_WRITE(reg
, val
);
1969 reg
= PCH_TRANSCONF(pipe
);
1970 val
= I915_READ(reg
);
1971 pipeconf_val
= I915_READ(PIPECONF(pipe
));
1973 if (HAS_PCH_IBX(dev_priv
->dev
)) {
1975 * make the BPC in transcoder be consistent with
1976 * that in pipeconf reg.
1978 val
&= ~PIPECONF_BPC_MASK
;
1979 val
|= pipeconf_val
& PIPECONF_BPC_MASK
;
1982 val
&= ~TRANS_INTERLACE_MASK
;
1983 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK
) == PIPECONF_INTERLACED_ILK
)
1984 if (HAS_PCH_IBX(dev_priv
->dev
) &&
1985 intel_pipe_has_type(intel_crtc
, INTEL_OUTPUT_SDVO
))
1986 val
|= TRANS_LEGACY_INTERLACED_ILK
;
1988 val
|= TRANS_INTERLACED
;
1990 val
|= TRANS_PROGRESSIVE
;
1992 I915_WRITE(reg
, val
| TRANS_ENABLE
);
1993 if (wait_for(I915_READ(reg
) & TRANS_STATE_ENABLE
, 100))
1994 DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe
));
1997 static void lpt_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1998 enum transcoder cpu_transcoder
)
2000 u32 val
, pipeconf_val
;
2002 /* PCH only available on ILK+ */
2003 BUG_ON(!HAS_PCH_SPLIT(dev_priv
->dev
));
2005 /* FDI must be feeding us bits for PCH ports */
2006 assert_fdi_tx_enabled(dev_priv
, (enum pipe
) cpu_transcoder
);
2007 assert_fdi_rx_enabled(dev_priv
, TRANSCODER_A
);
2009 /* Workaround: set timing override bit. */
2010 val
= I915_READ(_TRANSA_CHICKEN2
);
2011 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
2012 I915_WRITE(_TRANSA_CHICKEN2
, val
);
2015 pipeconf_val
= I915_READ(PIPECONF(cpu_transcoder
));
2017 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK_HSW
) ==
2018 PIPECONF_INTERLACED_ILK
)
2019 val
|= TRANS_INTERLACED
;
2021 val
|= TRANS_PROGRESSIVE
;
2023 I915_WRITE(LPT_TRANSCONF
, val
);
2024 if (wait_for(I915_READ(LPT_TRANSCONF
) & TRANS_STATE_ENABLE
, 100))
2025 DRM_ERROR("Failed to enable PCH transcoder\n");
2028 static void ironlake_disable_pch_transcoder(struct drm_i915_private
*dev_priv
,
2031 struct drm_device
*dev
= dev_priv
->dev
;
2034 /* FDI relies on the transcoder */
2035 assert_fdi_tx_disabled(dev_priv
, pipe
);
2036 assert_fdi_rx_disabled(dev_priv
, pipe
);
2038 /* Ports must be off as well */
2039 assert_pch_ports_disabled(dev_priv
, pipe
);
2041 reg
= PCH_TRANSCONF(pipe
);
2042 val
= I915_READ(reg
);
2043 val
&= ~TRANS_ENABLE
;
2044 I915_WRITE(reg
, val
);
2045 /* wait for PCH transcoder off, transcoder state */
2046 if (wait_for((I915_READ(reg
) & TRANS_STATE_ENABLE
) == 0, 50))
2047 DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe
));
2049 if (!HAS_PCH_IBX(dev
)) {
2050 /* Workaround: Clear the timing override chicken bit again. */
2051 reg
= TRANS_CHICKEN2(pipe
);
2052 val
= I915_READ(reg
);
2053 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
2054 I915_WRITE(reg
, val
);
2058 static void lpt_disable_pch_transcoder(struct drm_i915_private
*dev_priv
)
2062 val
= I915_READ(LPT_TRANSCONF
);
2063 val
&= ~TRANS_ENABLE
;
2064 I915_WRITE(LPT_TRANSCONF
, val
);
2065 /* wait for PCH transcoder off, transcoder state */
2066 if (wait_for((I915_READ(LPT_TRANSCONF
) & TRANS_STATE_ENABLE
) == 0, 50))
2067 DRM_ERROR("Failed to disable PCH transcoder\n");
2069 /* Workaround: clear timing override bit. */
2070 val
= I915_READ(_TRANSA_CHICKEN2
);
2071 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
2072 I915_WRITE(_TRANSA_CHICKEN2
, val
);
2076 * intel_enable_pipe - enable a pipe, asserting requirements
2077 * @crtc: crtc responsible for the pipe
2079 * Enable @crtc's pipe, making sure that various hardware specific requirements
2080 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
2082 static void intel_enable_pipe(struct intel_crtc
*crtc
)
2084 struct drm_device
*dev
= crtc
->base
.dev
;
2085 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2086 enum pipe pipe
= crtc
->pipe
;
2087 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
2089 enum pipe pch_transcoder
;
2093 assert_planes_disabled(dev_priv
, pipe
);
2094 assert_cursor_disabled(dev_priv
, pipe
);
2095 assert_sprites_disabled(dev_priv
, pipe
);
2097 if (HAS_PCH_LPT(dev_priv
->dev
))
2098 pch_transcoder
= TRANSCODER_A
;
2100 pch_transcoder
= pipe
;
2103 * A pipe without a PLL won't actually be able to drive bits from
2104 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
2107 if (!HAS_PCH_SPLIT(dev_priv
->dev
))
2108 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DSI
))
2109 assert_dsi_pll_enabled(dev_priv
);
2111 assert_pll_enabled(dev_priv
, pipe
);
2113 if (crtc
->config
->has_pch_encoder
) {
2114 /* if driving the PCH, we need FDI enabled */
2115 assert_fdi_rx_pll_enabled(dev_priv
, pch_transcoder
);
2116 assert_fdi_tx_pll_enabled(dev_priv
,
2117 (enum pipe
) cpu_transcoder
);
2119 /* FIXME: assert CPU port conditions for SNB+ */
2122 reg
= PIPECONF(cpu_transcoder
);
2123 val
= I915_READ(reg
);
2124 if (val
& PIPECONF_ENABLE
) {
2125 WARN_ON(!((pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
2126 (pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
)));
2130 I915_WRITE(reg
, val
| PIPECONF_ENABLE
);
2135 * intel_disable_pipe - disable a pipe, asserting requirements
2136 * @crtc: crtc whose pipes is to be disabled
2138 * Disable the pipe of @crtc, making sure that various hardware
2139 * specific requirements are met, if applicable, e.g. plane
2140 * disabled, panel fitter off, etc.
2142 * Will wait until the pipe has shut down before returning.
2144 static void intel_disable_pipe(struct intel_crtc
*crtc
)
2146 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
2147 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
2148 enum pipe pipe
= crtc
->pipe
;
2153 * Make sure planes won't keep trying to pump pixels to us,
2154 * or we might hang the display.
2156 assert_planes_disabled(dev_priv
, pipe
);
2157 assert_cursor_disabled(dev_priv
, pipe
);
2158 assert_sprites_disabled(dev_priv
, pipe
);
2160 reg
= PIPECONF(cpu_transcoder
);
2161 val
= I915_READ(reg
);
2162 if ((val
& PIPECONF_ENABLE
) == 0)
2166 * Double wide has implications for planes
2167 * so best keep it disabled when not needed.
2169 if (crtc
->config
->double_wide
)
2170 val
&= ~PIPECONF_DOUBLE_WIDE
;
2172 /* Don't disable pipe or pipe PLLs if needed */
2173 if (!(pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) &&
2174 !(pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
2175 val
&= ~PIPECONF_ENABLE
;
2177 I915_WRITE(reg
, val
);
2178 if ((val
& PIPECONF_ENABLE
) == 0)
2179 intel_wait_for_pipe_off(crtc
);
2183 * Plane regs are double buffered, going from enabled->disabled needs a
2184 * trigger in order to latch. The display address reg provides this.
2186 void intel_flush_primary_plane(struct drm_i915_private
*dev_priv
,
2189 struct drm_device
*dev
= dev_priv
->dev
;
2190 u32 reg
= INTEL_INFO(dev
)->gen
>= 4 ? DSPSURF(plane
) : DSPADDR(plane
);
2192 I915_WRITE(reg
, I915_READ(reg
));
2197 * intel_enable_primary_hw_plane - enable the primary plane on a given pipe
2198 * @plane: plane to be enabled
2199 * @crtc: crtc for the plane
2201 * Enable @plane on @crtc, making sure that the pipe is running first.
2203 static void intel_enable_primary_hw_plane(struct drm_plane
*plane
,
2204 struct drm_crtc
*crtc
)
2206 struct drm_device
*dev
= plane
->dev
;
2207 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2208 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2210 /* If the pipe isn't enabled, we can't pump pixels and may hang */
2211 assert_pipe_enabled(dev_priv
, intel_crtc
->pipe
);
2213 if (intel_crtc
->primary_enabled
)
2216 intel_crtc
->primary_enabled
= true;
2218 dev_priv
->display
.update_primary_plane(crtc
, plane
->fb
,
2222 * BDW signals flip done immediately if the plane
2223 * is disabled, even if the plane enable is already
2224 * armed to occur at the next vblank :(
2226 if (IS_BROADWELL(dev
))
2227 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
2231 * intel_disable_primary_hw_plane - disable the primary hardware plane
2232 * @plane: plane to be disabled
2233 * @crtc: crtc for the plane
2235 * Disable @plane on @crtc, making sure that the pipe is running first.
2237 static void intel_disable_primary_hw_plane(struct drm_plane
*plane
,
2238 struct drm_crtc
*crtc
)
2240 struct drm_device
*dev
= plane
->dev
;
2241 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2242 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2244 if (WARN_ON(!intel_crtc
->active
))
2247 if (!intel_crtc
->primary_enabled
)
2250 intel_crtc
->primary_enabled
= false;
2252 dev_priv
->display
.update_primary_plane(crtc
, plane
->fb
,
2256 static bool need_vtd_wa(struct drm_device
*dev
)
2258 #ifdef CONFIG_INTEL_IOMMU
2259 if (INTEL_INFO(dev
)->gen
>= 6 && intel_iommu_gfx_mapped
)
2266 intel_tile_height(struct drm_device
*dev
, uint32_t pixel_format
,
2267 uint64_t fb_format_modifier
)
2269 unsigned int tile_height
;
2270 uint32_t pixel_bytes
;
2272 switch (fb_format_modifier
) {
2273 case DRM_FORMAT_MOD_NONE
:
2276 case I915_FORMAT_MOD_X_TILED
:
2277 tile_height
= IS_GEN2(dev
) ? 16 : 8;
2279 case I915_FORMAT_MOD_Y_TILED
:
2282 case I915_FORMAT_MOD_Yf_TILED
:
2283 pixel_bytes
= drm_format_plane_cpp(pixel_format
, 0);
2284 switch (pixel_bytes
) {
2298 "128-bit pixels are not supported for display!");
2304 MISSING_CASE(fb_format_modifier
);
2313 intel_fb_align_height(struct drm_device
*dev
, unsigned int height
,
2314 uint32_t pixel_format
, uint64_t fb_format_modifier
)
2316 return ALIGN(height
, intel_tile_height(dev
, pixel_format
,
2317 fb_format_modifier
));
2321 intel_fill_fb_ggtt_view(struct i915_ggtt_view
*view
, struct drm_framebuffer
*fb
,
2322 const struct drm_plane_state
*plane_state
)
2324 struct intel_rotation_info
*info
= &view
->rotation_info
;
2326 *view
= i915_ggtt_view_normal
;
2331 if (!intel_rotation_90_or_270(plane_state
->rotation
))
2334 *view
= i915_ggtt_view_rotated
;
2336 info
->height
= fb
->height
;
2337 info
->pixel_format
= fb
->pixel_format
;
2338 info
->pitch
= fb
->pitches
[0];
2339 info
->fb_modifier
= fb
->modifier
[0];
2341 if (!(info
->fb_modifier
== I915_FORMAT_MOD_Y_TILED
||
2342 info
->fb_modifier
== I915_FORMAT_MOD_Yf_TILED
)) {
2344 "Y or Yf tiling is needed for 90/270 rotation!\n");
2352 intel_pin_and_fence_fb_obj(struct drm_plane
*plane
,
2353 struct drm_framebuffer
*fb
,
2354 const struct drm_plane_state
*plane_state
,
2355 struct intel_engine_cs
*pipelined
)
2357 struct drm_device
*dev
= fb
->dev
;
2358 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2359 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
2360 struct i915_ggtt_view view
;
2364 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
2366 switch (fb
->modifier
[0]) {
2367 case DRM_FORMAT_MOD_NONE
:
2368 if (INTEL_INFO(dev
)->gen
>= 9)
2369 alignment
= 256 * 1024;
2370 else if (IS_BROADWATER(dev
) || IS_CRESTLINE(dev
))
2371 alignment
= 128 * 1024;
2372 else if (INTEL_INFO(dev
)->gen
>= 4)
2373 alignment
= 4 * 1024;
2375 alignment
= 64 * 1024;
2377 case I915_FORMAT_MOD_X_TILED
:
2378 if (INTEL_INFO(dev
)->gen
>= 9)
2379 alignment
= 256 * 1024;
2381 /* pin() will align the object as required by fence */
2385 case I915_FORMAT_MOD_Y_TILED
:
2386 case I915_FORMAT_MOD_Yf_TILED
:
2387 if (WARN_ONCE(INTEL_INFO(dev
)->gen
< 9,
2388 "Y tiling bo slipped through, driver bug!\n"))
2390 alignment
= 1 * 1024 * 1024;
2393 MISSING_CASE(fb
->modifier
[0]);
2397 ret
= intel_fill_fb_ggtt_view(&view
, fb
, plane_state
);
2401 /* Note that the w/a also requires 64 PTE of padding following the
2402 * bo. We currently fill all unused PTE with the shadow page and so
2403 * we should always have valid PTE following the scanout preventing
2406 if (need_vtd_wa(dev
) && alignment
< 256 * 1024)
2407 alignment
= 256 * 1024;
2410 * Global gtt pte registers are special registers which actually forward
2411 * writes to a chunk of system memory. Which means that there is no risk
2412 * that the register values disappear as soon as we call
2413 * intel_runtime_pm_put(), so it is correct to wrap only the
2414 * pin/unpin/fence and not more.
2416 intel_runtime_pm_get(dev_priv
);
2418 dev_priv
->mm
.interruptible
= false;
2419 ret
= i915_gem_object_pin_to_display_plane(obj
, alignment
, pipelined
,
2422 goto err_interruptible
;
2424 /* Install a fence for tiled scan-out. Pre-i965 always needs a
2425 * fence, whereas 965+ only requires a fence if using
2426 * framebuffer compression. For simplicity, we always install
2427 * a fence as the cost is not that onerous.
2429 ret
= i915_gem_object_get_fence(obj
);
2433 i915_gem_object_pin_fence(obj
);
2435 dev_priv
->mm
.interruptible
= true;
2436 intel_runtime_pm_put(dev_priv
);
2440 i915_gem_object_unpin_from_display_plane(obj
, &view
);
2442 dev_priv
->mm
.interruptible
= true;
2443 intel_runtime_pm_put(dev_priv
);
2447 static void intel_unpin_fb_obj(struct drm_framebuffer
*fb
,
2448 const struct drm_plane_state
*plane_state
)
2450 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
2451 struct i915_ggtt_view view
;
2454 WARN_ON(!mutex_is_locked(&obj
->base
.dev
->struct_mutex
));
2456 ret
= intel_fill_fb_ggtt_view(&view
, fb
, plane_state
);
2457 WARN_ONCE(ret
, "Couldn't get view from plane state!");
2459 i915_gem_object_unpin_fence(obj
);
2460 i915_gem_object_unpin_from_display_plane(obj
, &view
);
2463 /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel
2464 * is assumed to be a power-of-two. */
2465 unsigned long intel_gen4_compute_page_offset(int *x
, int *y
,
2466 unsigned int tiling_mode
,
2470 if (tiling_mode
!= I915_TILING_NONE
) {
2471 unsigned int tile_rows
, tiles
;
2476 tiles
= *x
/ (512/cpp
);
2479 return tile_rows
* pitch
* 8 + tiles
* 4096;
2481 unsigned int offset
;
2483 offset
= *y
* pitch
+ *x
* cpp
;
2485 *x
= (offset
& 4095) / cpp
;
2486 return offset
& -4096;
2490 static int i9xx_format_to_fourcc(int format
)
2493 case DISPPLANE_8BPP
:
2494 return DRM_FORMAT_C8
;
2495 case DISPPLANE_BGRX555
:
2496 return DRM_FORMAT_XRGB1555
;
2497 case DISPPLANE_BGRX565
:
2498 return DRM_FORMAT_RGB565
;
2500 case DISPPLANE_BGRX888
:
2501 return DRM_FORMAT_XRGB8888
;
2502 case DISPPLANE_RGBX888
:
2503 return DRM_FORMAT_XBGR8888
;
2504 case DISPPLANE_BGRX101010
:
2505 return DRM_FORMAT_XRGB2101010
;
2506 case DISPPLANE_RGBX101010
:
2507 return DRM_FORMAT_XBGR2101010
;
2511 static int skl_format_to_fourcc(int format
, bool rgb_order
, bool alpha
)
2514 case PLANE_CTL_FORMAT_RGB_565
:
2515 return DRM_FORMAT_RGB565
;
2517 case PLANE_CTL_FORMAT_XRGB_8888
:
2520 return DRM_FORMAT_ABGR8888
;
2522 return DRM_FORMAT_XBGR8888
;
2525 return DRM_FORMAT_ARGB8888
;
2527 return DRM_FORMAT_XRGB8888
;
2529 case PLANE_CTL_FORMAT_XRGB_2101010
:
2531 return DRM_FORMAT_XBGR2101010
;
2533 return DRM_FORMAT_XRGB2101010
;
2538 intel_alloc_initial_plane_obj(struct intel_crtc
*crtc
,
2539 struct intel_initial_plane_config
*plane_config
)
2541 struct drm_device
*dev
= crtc
->base
.dev
;
2542 struct drm_i915_gem_object
*obj
= NULL
;
2543 struct drm_mode_fb_cmd2 mode_cmd
= { 0 };
2544 struct drm_framebuffer
*fb
= &plane_config
->fb
->base
;
2545 u32 base_aligned
= round_down(plane_config
->base
, PAGE_SIZE
);
2546 u32 size_aligned
= round_up(plane_config
->base
+ plane_config
->size
,
2549 size_aligned
-= base_aligned
;
2551 if (plane_config
->size
== 0)
2554 obj
= i915_gem_object_create_stolen_for_preallocated(dev
,
2561 obj
->tiling_mode
= plane_config
->tiling
;
2562 if (obj
->tiling_mode
== I915_TILING_X
)
2563 obj
->stride
= fb
->pitches
[0];
2565 mode_cmd
.pixel_format
= fb
->pixel_format
;
2566 mode_cmd
.width
= fb
->width
;
2567 mode_cmd
.height
= fb
->height
;
2568 mode_cmd
.pitches
[0] = fb
->pitches
[0];
2569 mode_cmd
.modifier
[0] = fb
->modifier
[0];
2570 mode_cmd
.flags
= DRM_MODE_FB_MODIFIERS
;
2572 mutex_lock(&dev
->struct_mutex
);
2573 if (intel_framebuffer_init(dev
, to_intel_framebuffer(fb
),
2575 DRM_DEBUG_KMS("intel fb init failed\n");
2578 mutex_unlock(&dev
->struct_mutex
);
2580 DRM_DEBUG_KMS("initial plane fb obj %p\n", obj
);
2584 drm_gem_object_unreference(&obj
->base
);
2585 mutex_unlock(&dev
->struct_mutex
);
2589 /* Update plane->state->fb to match plane->fb after driver-internal updates */
2591 update_state_fb(struct drm_plane
*plane
)
2593 if (plane
->fb
== plane
->state
->fb
)
2596 if (plane
->state
->fb
)
2597 drm_framebuffer_unreference(plane
->state
->fb
);
2598 plane
->state
->fb
= plane
->fb
;
2599 if (plane
->state
->fb
)
2600 drm_framebuffer_reference(plane
->state
->fb
);
2604 intel_find_initial_plane_obj(struct intel_crtc
*intel_crtc
,
2605 struct intel_initial_plane_config
*plane_config
)
2607 struct drm_device
*dev
= intel_crtc
->base
.dev
;
2608 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2610 struct intel_crtc
*i
;
2611 struct drm_i915_gem_object
*obj
;
2612 struct drm_plane
*primary
= intel_crtc
->base
.primary
;
2613 struct drm_framebuffer
*fb
;
2615 if (!plane_config
->fb
)
2618 if (intel_alloc_initial_plane_obj(intel_crtc
, plane_config
)) {
2619 fb
= &plane_config
->fb
->base
;
2623 kfree(plane_config
->fb
);
2626 * Failed to alloc the obj, check to see if we should share
2627 * an fb with another CRTC instead
2629 for_each_crtc(dev
, c
) {
2630 i
= to_intel_crtc(c
);
2632 if (c
== &intel_crtc
->base
)
2638 fb
= c
->primary
->fb
;
2642 obj
= intel_fb_obj(fb
);
2643 if (i915_gem_obj_ggtt_offset(obj
) == plane_config
->base
) {
2644 drm_framebuffer_reference(fb
);
2652 obj
= intel_fb_obj(fb
);
2653 if (obj
->tiling_mode
!= I915_TILING_NONE
)
2654 dev_priv
->preserve_bios_swizzle
= true;
2657 primary
->state
->crtc
= &intel_crtc
->base
;
2658 primary
->crtc
= &intel_crtc
->base
;
2659 update_state_fb(primary
);
2660 obj
->frontbuffer_bits
|= INTEL_FRONTBUFFER_PRIMARY(intel_crtc
->pipe
);
2663 static void i9xx_update_primary_plane(struct drm_crtc
*crtc
,
2664 struct drm_framebuffer
*fb
,
2667 struct drm_device
*dev
= crtc
->dev
;
2668 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2669 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2670 struct drm_i915_gem_object
*obj
;
2671 int plane
= intel_crtc
->plane
;
2672 unsigned long linear_offset
;
2674 u32 reg
= DSPCNTR(plane
);
2677 if (!intel_crtc
->primary_enabled
) {
2679 if (INTEL_INFO(dev
)->gen
>= 4)
2680 I915_WRITE(DSPSURF(plane
), 0);
2682 I915_WRITE(DSPADDR(plane
), 0);
2687 obj
= intel_fb_obj(fb
);
2688 if (WARN_ON(obj
== NULL
))
2691 pixel_size
= drm_format_plane_cpp(fb
->pixel_format
, 0);
2693 dspcntr
= DISPPLANE_GAMMA_ENABLE
;
2695 dspcntr
|= DISPLAY_PLANE_ENABLE
;
2697 if (INTEL_INFO(dev
)->gen
< 4) {
2698 if (intel_crtc
->pipe
== PIPE_B
)
2699 dspcntr
|= DISPPLANE_SEL_PIPE_B
;
2701 /* pipesrc and dspsize control the size that is scaled from,
2702 * which should always be the user's requested size.
2704 I915_WRITE(DSPSIZE(plane
),
2705 ((intel_crtc
->config
->pipe_src_h
- 1) << 16) |
2706 (intel_crtc
->config
->pipe_src_w
- 1));
2707 I915_WRITE(DSPPOS(plane
), 0);
2708 } else if (IS_CHERRYVIEW(dev
) && plane
== PLANE_B
) {
2709 I915_WRITE(PRIMSIZE(plane
),
2710 ((intel_crtc
->config
->pipe_src_h
- 1) << 16) |
2711 (intel_crtc
->config
->pipe_src_w
- 1));
2712 I915_WRITE(PRIMPOS(plane
), 0);
2713 I915_WRITE(PRIMCNSTALPHA(plane
), 0);
2716 switch (fb
->pixel_format
) {
2718 dspcntr
|= DISPPLANE_8BPP
;
2720 case DRM_FORMAT_XRGB1555
:
2721 case DRM_FORMAT_ARGB1555
:
2722 dspcntr
|= DISPPLANE_BGRX555
;
2724 case DRM_FORMAT_RGB565
:
2725 dspcntr
|= DISPPLANE_BGRX565
;
2727 case DRM_FORMAT_XRGB8888
:
2728 case DRM_FORMAT_ARGB8888
:
2729 dspcntr
|= DISPPLANE_BGRX888
;
2731 case DRM_FORMAT_XBGR8888
:
2732 case DRM_FORMAT_ABGR8888
:
2733 dspcntr
|= DISPPLANE_RGBX888
;
2735 case DRM_FORMAT_XRGB2101010
:
2736 case DRM_FORMAT_ARGB2101010
:
2737 dspcntr
|= DISPPLANE_BGRX101010
;
2739 case DRM_FORMAT_XBGR2101010
:
2740 case DRM_FORMAT_ABGR2101010
:
2741 dspcntr
|= DISPPLANE_RGBX101010
;
2747 if (INTEL_INFO(dev
)->gen
>= 4 &&
2748 obj
->tiling_mode
!= I915_TILING_NONE
)
2749 dspcntr
|= DISPPLANE_TILED
;
2752 dspcntr
|= DISPPLANE_TRICKLE_FEED_DISABLE
;
2754 linear_offset
= y
* fb
->pitches
[0] + x
* pixel_size
;
2756 if (INTEL_INFO(dev
)->gen
>= 4) {
2757 intel_crtc
->dspaddr_offset
=
2758 intel_gen4_compute_page_offset(&x
, &y
, obj
->tiling_mode
,
2761 linear_offset
-= intel_crtc
->dspaddr_offset
;
2763 intel_crtc
->dspaddr_offset
= linear_offset
;
2766 if (crtc
->primary
->state
->rotation
== BIT(DRM_ROTATE_180
)) {
2767 dspcntr
|= DISPPLANE_ROTATE_180
;
2769 x
+= (intel_crtc
->config
->pipe_src_w
- 1);
2770 y
+= (intel_crtc
->config
->pipe_src_h
- 1);
2772 /* Finding the last pixel of the last line of the display
2773 data and adding to linear_offset*/
2775 (intel_crtc
->config
->pipe_src_h
- 1) * fb
->pitches
[0] +
2776 (intel_crtc
->config
->pipe_src_w
- 1) * pixel_size
;
2779 I915_WRITE(reg
, dspcntr
);
2781 I915_WRITE(DSPSTRIDE(plane
), fb
->pitches
[0]);
2782 if (INTEL_INFO(dev
)->gen
>= 4) {
2783 I915_WRITE(DSPSURF(plane
),
2784 i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
);
2785 I915_WRITE(DSPTILEOFF(plane
), (y
<< 16) | x
);
2786 I915_WRITE(DSPLINOFF(plane
), linear_offset
);
2788 I915_WRITE(DSPADDR(plane
), i915_gem_obj_ggtt_offset(obj
) + linear_offset
);
2792 static void ironlake_update_primary_plane(struct drm_crtc
*crtc
,
2793 struct drm_framebuffer
*fb
,
2796 struct drm_device
*dev
= crtc
->dev
;
2797 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2798 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2799 struct drm_i915_gem_object
*obj
;
2800 int plane
= intel_crtc
->plane
;
2801 unsigned long linear_offset
;
2803 u32 reg
= DSPCNTR(plane
);
2806 if (!intel_crtc
->primary_enabled
) {
2808 I915_WRITE(DSPSURF(plane
), 0);
2813 obj
= intel_fb_obj(fb
);
2814 if (WARN_ON(obj
== NULL
))
2817 pixel_size
= drm_format_plane_cpp(fb
->pixel_format
, 0);
2819 dspcntr
= DISPPLANE_GAMMA_ENABLE
;
2821 dspcntr
|= DISPLAY_PLANE_ENABLE
;
2823 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
2824 dspcntr
|= DISPPLANE_PIPE_CSC_ENABLE
;
2826 switch (fb
->pixel_format
) {
2828 dspcntr
|= DISPPLANE_8BPP
;
2830 case DRM_FORMAT_RGB565
:
2831 dspcntr
|= DISPPLANE_BGRX565
;
2833 case DRM_FORMAT_XRGB8888
:
2834 case DRM_FORMAT_ARGB8888
:
2835 dspcntr
|= DISPPLANE_BGRX888
;
2837 case DRM_FORMAT_XBGR8888
:
2838 case DRM_FORMAT_ABGR8888
:
2839 dspcntr
|= DISPPLANE_RGBX888
;
2841 case DRM_FORMAT_XRGB2101010
:
2842 case DRM_FORMAT_ARGB2101010
:
2843 dspcntr
|= DISPPLANE_BGRX101010
;
2845 case DRM_FORMAT_XBGR2101010
:
2846 case DRM_FORMAT_ABGR2101010
:
2847 dspcntr
|= DISPPLANE_RGBX101010
;
2853 if (obj
->tiling_mode
!= I915_TILING_NONE
)
2854 dspcntr
|= DISPPLANE_TILED
;
2856 if (!IS_HASWELL(dev
) && !IS_BROADWELL(dev
))
2857 dspcntr
|= DISPPLANE_TRICKLE_FEED_DISABLE
;
2859 linear_offset
= y
* fb
->pitches
[0] + x
* pixel_size
;
2860 intel_crtc
->dspaddr_offset
=
2861 intel_gen4_compute_page_offset(&x
, &y
, obj
->tiling_mode
,
2864 linear_offset
-= intel_crtc
->dspaddr_offset
;
2865 if (crtc
->primary
->state
->rotation
== BIT(DRM_ROTATE_180
)) {
2866 dspcntr
|= DISPPLANE_ROTATE_180
;
2868 if (!IS_HASWELL(dev
) && !IS_BROADWELL(dev
)) {
2869 x
+= (intel_crtc
->config
->pipe_src_w
- 1);
2870 y
+= (intel_crtc
->config
->pipe_src_h
- 1);
2872 /* Finding the last pixel of the last line of the display
2873 data and adding to linear_offset*/
2875 (intel_crtc
->config
->pipe_src_h
- 1) * fb
->pitches
[0] +
2876 (intel_crtc
->config
->pipe_src_w
- 1) * pixel_size
;
2880 I915_WRITE(reg
, dspcntr
);
2882 I915_WRITE(DSPSTRIDE(plane
), fb
->pitches
[0]);
2883 I915_WRITE(DSPSURF(plane
),
2884 i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
);
2885 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
2886 I915_WRITE(DSPOFFSET(plane
), (y
<< 16) | x
);
2888 I915_WRITE(DSPTILEOFF(plane
), (y
<< 16) | x
);
2889 I915_WRITE(DSPLINOFF(plane
), linear_offset
);
2894 u32
intel_fb_stride_alignment(struct drm_device
*dev
, uint64_t fb_modifier
,
2895 uint32_t pixel_format
)
2897 u32 bits_per_pixel
= drm_format_plane_cpp(pixel_format
, 0) * 8;
2900 * The stride is either expressed as a multiple of 64 bytes
2901 * chunks for linear buffers or in number of tiles for tiled
2904 switch (fb_modifier
) {
2905 case DRM_FORMAT_MOD_NONE
:
2907 case I915_FORMAT_MOD_X_TILED
:
2908 if (INTEL_INFO(dev
)->gen
== 2)
2911 case I915_FORMAT_MOD_Y_TILED
:
2912 /* No need to check for old gens and Y tiling since this is
2913 * about the display engine and those will be blocked before
2917 case I915_FORMAT_MOD_Yf_TILED
:
2918 if (bits_per_pixel
== 8)
2923 MISSING_CASE(fb_modifier
);
2928 unsigned long intel_plane_obj_offset(struct intel_plane
*intel_plane
,
2929 struct drm_i915_gem_object
*obj
)
2931 const struct i915_ggtt_view
*view
= &i915_ggtt_view_normal
;
2933 if (intel_rotation_90_or_270(intel_plane
->base
.state
->rotation
))
2934 view
= &i915_ggtt_view_rotated
;
2936 return i915_gem_obj_ggtt_offset_view(obj
, view
);
2939 static void skylake_update_primary_plane(struct drm_crtc
*crtc
,
2940 struct drm_framebuffer
*fb
,
2943 struct drm_device
*dev
= crtc
->dev
;
2944 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2945 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2946 struct drm_i915_gem_object
*obj
;
2947 int pipe
= intel_crtc
->pipe
;
2948 u32 plane_ctl
, stride_div
;
2949 unsigned long surf_addr
;
2951 if (!intel_crtc
->primary_enabled
) {
2952 I915_WRITE(PLANE_CTL(pipe
, 0), 0);
2953 I915_WRITE(PLANE_SURF(pipe
, 0), 0);
2954 POSTING_READ(PLANE_CTL(pipe
, 0));
2958 plane_ctl
= PLANE_CTL_ENABLE
|
2959 PLANE_CTL_PIPE_GAMMA_ENABLE
|
2960 PLANE_CTL_PIPE_CSC_ENABLE
;
2962 switch (fb
->pixel_format
) {
2963 case DRM_FORMAT_RGB565
:
2964 plane_ctl
|= PLANE_CTL_FORMAT_RGB_565
;
2966 case DRM_FORMAT_XRGB8888
:
2967 plane_ctl
|= PLANE_CTL_FORMAT_XRGB_8888
;
2969 case DRM_FORMAT_ARGB8888
:
2970 plane_ctl
|= PLANE_CTL_FORMAT_XRGB_8888
;
2971 plane_ctl
|= PLANE_CTL_ALPHA_SW_PREMULTIPLY
;
2973 case DRM_FORMAT_XBGR8888
:
2974 plane_ctl
|= PLANE_CTL_ORDER_RGBX
;
2975 plane_ctl
|= PLANE_CTL_FORMAT_XRGB_8888
;
2977 case DRM_FORMAT_ABGR8888
:
2978 plane_ctl
|= PLANE_CTL_ORDER_RGBX
;
2979 plane_ctl
|= PLANE_CTL_FORMAT_XRGB_8888
;
2980 plane_ctl
|= PLANE_CTL_ALPHA_SW_PREMULTIPLY
;
2982 case DRM_FORMAT_XRGB2101010
:
2983 plane_ctl
|= PLANE_CTL_FORMAT_XRGB_2101010
;
2985 case DRM_FORMAT_XBGR2101010
:
2986 plane_ctl
|= PLANE_CTL_ORDER_RGBX
;
2987 plane_ctl
|= PLANE_CTL_FORMAT_XRGB_2101010
;
2993 switch (fb
->modifier
[0]) {
2994 case DRM_FORMAT_MOD_NONE
:
2996 case I915_FORMAT_MOD_X_TILED
:
2997 plane_ctl
|= PLANE_CTL_TILED_X
;
2999 case I915_FORMAT_MOD_Y_TILED
:
3000 plane_ctl
|= PLANE_CTL_TILED_Y
;
3002 case I915_FORMAT_MOD_Yf_TILED
:
3003 plane_ctl
|= PLANE_CTL_TILED_YF
;
3006 MISSING_CASE(fb
->modifier
[0]);
3009 plane_ctl
|= PLANE_CTL_PLANE_GAMMA_DISABLE
;
3010 if (crtc
->primary
->state
->rotation
== BIT(DRM_ROTATE_180
))
3011 plane_ctl
|= PLANE_CTL_ROTATE_180
;
3013 obj
= intel_fb_obj(fb
);
3014 stride_div
= intel_fb_stride_alignment(dev
, fb
->modifier
[0],
3016 surf_addr
= intel_plane_obj_offset(to_intel_plane(crtc
->primary
), obj
);
3018 I915_WRITE(PLANE_CTL(pipe
, 0), plane_ctl
);
3019 I915_WRITE(PLANE_POS(pipe
, 0), 0);
3020 I915_WRITE(PLANE_OFFSET(pipe
, 0), (y
<< 16) | x
);
3021 I915_WRITE(PLANE_SIZE(pipe
, 0),
3022 (intel_crtc
->config
->pipe_src_h
- 1) << 16 |
3023 (intel_crtc
->config
->pipe_src_w
- 1));
3024 I915_WRITE(PLANE_STRIDE(pipe
, 0), fb
->pitches
[0] / stride_div
);
3025 I915_WRITE(PLANE_SURF(pipe
, 0), surf_addr
);
3027 POSTING_READ(PLANE_SURF(pipe
, 0));
3030 /* Assume fb object is pinned & idle & fenced and just update base pointers */
3032 intel_pipe_set_base_atomic(struct drm_crtc
*crtc
, struct drm_framebuffer
*fb
,
3033 int x
, int y
, enum mode_set_atomic state
)
3035 struct drm_device
*dev
= crtc
->dev
;
3036 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3038 if (dev_priv
->display
.disable_fbc
)
3039 dev_priv
->display
.disable_fbc(dev
);
3041 dev_priv
->display
.update_primary_plane(crtc
, fb
, x
, y
);
3046 static void intel_complete_page_flips(struct drm_device
*dev
)
3048 struct drm_crtc
*crtc
;
3050 for_each_crtc(dev
, crtc
) {
3051 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3052 enum plane plane
= intel_crtc
->plane
;
3054 intel_prepare_page_flip(dev
, plane
);
3055 intel_finish_page_flip_plane(dev
, plane
);
3059 static void intel_update_primary_planes(struct drm_device
*dev
)
3061 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3062 struct drm_crtc
*crtc
;
3064 for_each_crtc(dev
, crtc
) {
3065 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3067 drm_modeset_lock(&crtc
->mutex
, NULL
);
3069 * FIXME: Once we have proper support for primary planes (and
3070 * disabling them without disabling the entire crtc) allow again
3071 * a NULL crtc->primary->fb.
3073 if (intel_crtc
->active
&& crtc
->primary
->fb
)
3074 dev_priv
->display
.update_primary_plane(crtc
,
3078 drm_modeset_unlock(&crtc
->mutex
);
3082 void intel_prepare_reset(struct drm_device
*dev
)
3084 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3085 struct intel_crtc
*crtc
;
3087 /* no reset support for gen2 */
3091 /* reset doesn't touch the display */
3092 if (INTEL_INFO(dev
)->gen
>= 5 || IS_G4X(dev
))
3095 drm_modeset_lock_all(dev
);
3098 * Disabling the crtcs gracefully seems nicer. Also the
3099 * g33 docs say we should at least disable all the planes.
3101 for_each_intel_crtc(dev
, crtc
) {
3103 dev_priv
->display
.crtc_disable(&crtc
->base
);
3107 void intel_finish_reset(struct drm_device
*dev
)
3109 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3112 * Flips in the rings will be nuked by the reset,
3113 * so complete all pending flips so that user space
3114 * will get its events and not get stuck.
3116 intel_complete_page_flips(dev
);
3118 /* no reset support for gen2 */
3122 /* reset doesn't touch the display */
3123 if (INTEL_INFO(dev
)->gen
>= 5 || IS_G4X(dev
)) {
3125 * Flips in the rings have been nuked by the reset,
3126 * so update the base address of all primary
3127 * planes to the the last fb to make sure we're
3128 * showing the correct fb after a reset.
3130 intel_update_primary_planes(dev
);
3135 * The display has been reset as well,
3136 * so need a full re-initialization.
3138 intel_runtime_pm_disable_interrupts(dev_priv
);
3139 intel_runtime_pm_enable_interrupts(dev_priv
);
3141 intel_modeset_init_hw(dev
);
3143 spin_lock_irq(&dev_priv
->irq_lock
);
3144 if (dev_priv
->display
.hpd_irq_setup
)
3145 dev_priv
->display
.hpd_irq_setup(dev
);
3146 spin_unlock_irq(&dev_priv
->irq_lock
);
3148 intel_modeset_setup_hw_state(dev
, true);
3150 intel_hpd_init(dev_priv
);
3152 drm_modeset_unlock_all(dev
);
3156 intel_finish_fb(struct drm_framebuffer
*old_fb
)
3158 struct drm_i915_gem_object
*obj
= intel_fb_obj(old_fb
);
3159 struct drm_i915_private
*dev_priv
= obj
->base
.dev
->dev_private
;
3160 bool was_interruptible
= dev_priv
->mm
.interruptible
;
3163 /* Big Hammer, we also need to ensure that any pending
3164 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
3165 * current scanout is retired before unpinning the old
3168 * This should only fail upon a hung GPU, in which case we
3169 * can safely continue.
3171 dev_priv
->mm
.interruptible
= false;
3172 ret
= i915_gem_object_finish_gpu(obj
);
3173 dev_priv
->mm
.interruptible
= was_interruptible
;
3178 static bool intel_crtc_has_pending_flip(struct drm_crtc
*crtc
)
3180 struct drm_device
*dev
= crtc
->dev
;
3181 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3182 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3185 if (i915_reset_in_progress(&dev_priv
->gpu_error
) ||
3186 intel_crtc
->reset_counter
!= atomic_read(&dev_priv
->gpu_error
.reset_counter
))
3189 spin_lock_irq(&dev
->event_lock
);
3190 pending
= to_intel_crtc(crtc
)->unpin_work
!= NULL
;
3191 spin_unlock_irq(&dev
->event_lock
);
3196 static void intel_update_pipe_size(struct intel_crtc
*crtc
)
3198 struct drm_device
*dev
= crtc
->base
.dev
;
3199 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3200 const struct drm_display_mode
*adjusted_mode
;
3206 * Update pipe size and adjust fitter if needed: the reason for this is
3207 * that in compute_mode_changes we check the native mode (not the pfit
3208 * mode) to see if we can flip rather than do a full mode set. In the
3209 * fastboot case, we'll flip, but if we don't update the pipesrc and
3210 * pfit state, we'll end up with a big fb scanned out into the wrong
3213 * To fix this properly, we need to hoist the checks up into
3214 * compute_mode_changes (or above), check the actual pfit state and
3215 * whether the platform allows pfit disable with pipe active, and only
3216 * then update the pipesrc and pfit state, even on the flip path.
3219 adjusted_mode
= &crtc
->config
->base
.adjusted_mode
;
3221 I915_WRITE(PIPESRC(crtc
->pipe
),
3222 ((adjusted_mode
->crtc_hdisplay
- 1) << 16) |
3223 (adjusted_mode
->crtc_vdisplay
- 1));
3224 if (!crtc
->config
->pch_pfit
.enabled
&&
3225 (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) ||
3226 intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
))) {
3227 I915_WRITE(PF_CTL(crtc
->pipe
), 0);
3228 I915_WRITE(PF_WIN_POS(crtc
->pipe
), 0);
3229 I915_WRITE(PF_WIN_SZ(crtc
->pipe
), 0);
3231 crtc
->config
->pipe_src_w
= adjusted_mode
->crtc_hdisplay
;
3232 crtc
->config
->pipe_src_h
= adjusted_mode
->crtc_vdisplay
;
3235 static void intel_fdi_normal_train(struct drm_crtc
*crtc
)
3237 struct drm_device
*dev
= crtc
->dev
;
3238 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3239 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3240 int pipe
= intel_crtc
->pipe
;
3243 /* enable normal train */
3244 reg
= FDI_TX_CTL(pipe
);
3245 temp
= I915_READ(reg
);
3246 if (IS_IVYBRIDGE(dev
)) {
3247 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
3248 temp
|= FDI_LINK_TRAIN_NONE_IVB
| FDI_TX_ENHANCE_FRAME_ENABLE
;
3250 temp
&= ~FDI_LINK_TRAIN_NONE
;
3251 temp
|= FDI_LINK_TRAIN_NONE
| FDI_TX_ENHANCE_FRAME_ENABLE
;
3253 I915_WRITE(reg
, temp
);
3255 reg
= FDI_RX_CTL(pipe
);
3256 temp
= I915_READ(reg
);
3257 if (HAS_PCH_CPT(dev
)) {
3258 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3259 temp
|= FDI_LINK_TRAIN_NORMAL_CPT
;
3261 temp
&= ~FDI_LINK_TRAIN_NONE
;
3262 temp
|= FDI_LINK_TRAIN_NONE
;
3264 I915_WRITE(reg
, temp
| FDI_RX_ENHANCE_FRAME_ENABLE
);
3266 /* wait one idle pattern time */
3270 /* IVB wants error correction enabled */
3271 if (IS_IVYBRIDGE(dev
))
3272 I915_WRITE(reg
, I915_READ(reg
) | FDI_FS_ERRC_ENABLE
|
3273 FDI_FE_ERRC_ENABLE
);
3276 /* The FDI link training functions for ILK/Ibexpeak. */
3277 static void ironlake_fdi_link_train(struct drm_crtc
*crtc
)
3279 struct drm_device
*dev
= crtc
->dev
;
3280 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3281 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3282 int pipe
= intel_crtc
->pipe
;
3283 u32 reg
, temp
, tries
;
3285 /* FDI needs bits from pipe first */
3286 assert_pipe_enabled(dev_priv
, pipe
);
3288 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3290 reg
= FDI_RX_IMR(pipe
);
3291 temp
= I915_READ(reg
);
3292 temp
&= ~FDI_RX_SYMBOL_LOCK
;
3293 temp
&= ~FDI_RX_BIT_LOCK
;
3294 I915_WRITE(reg
, temp
);
3298 /* enable CPU FDI TX and PCH FDI RX */
3299 reg
= FDI_TX_CTL(pipe
);
3300 temp
= I915_READ(reg
);
3301 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
3302 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
->fdi_lanes
);
3303 temp
&= ~FDI_LINK_TRAIN_NONE
;
3304 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3305 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
3307 reg
= FDI_RX_CTL(pipe
);
3308 temp
= I915_READ(reg
);
3309 temp
&= ~FDI_LINK_TRAIN_NONE
;
3310 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3311 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
3316 /* Ironlake workaround, enable clock pointer after FDI enable*/
3317 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
3318 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
|
3319 FDI_RX_PHASE_SYNC_POINTER_EN
);
3321 reg
= FDI_RX_IIR(pipe
);
3322 for (tries
= 0; tries
< 5; tries
++) {
3323 temp
= I915_READ(reg
);
3324 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3326 if ((temp
& FDI_RX_BIT_LOCK
)) {
3327 DRM_DEBUG_KMS("FDI train 1 done.\n");
3328 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
3333 DRM_ERROR("FDI train 1 fail!\n");
3336 reg
= FDI_TX_CTL(pipe
);
3337 temp
= I915_READ(reg
);
3338 temp
&= ~FDI_LINK_TRAIN_NONE
;
3339 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3340 I915_WRITE(reg
, temp
);
3342 reg
= FDI_RX_CTL(pipe
);
3343 temp
= I915_READ(reg
);
3344 temp
&= ~FDI_LINK_TRAIN_NONE
;
3345 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3346 I915_WRITE(reg
, temp
);
3351 reg
= FDI_RX_IIR(pipe
);
3352 for (tries
= 0; tries
< 5; tries
++) {
3353 temp
= I915_READ(reg
);
3354 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3356 if (temp
& FDI_RX_SYMBOL_LOCK
) {
3357 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3358 DRM_DEBUG_KMS("FDI train 2 done.\n");
3363 DRM_ERROR("FDI train 2 fail!\n");
3365 DRM_DEBUG_KMS("FDI train done\n");
3369 static const int snb_b_fdi_train_param
[] = {
3370 FDI_LINK_TRAIN_400MV_0DB_SNB_B
,
3371 FDI_LINK_TRAIN_400MV_6DB_SNB_B
,
3372 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B
,
3373 FDI_LINK_TRAIN_800MV_0DB_SNB_B
,
3376 /* The FDI link training functions for SNB/Cougarpoint. */
3377 static void gen6_fdi_link_train(struct drm_crtc
*crtc
)
3379 struct drm_device
*dev
= crtc
->dev
;
3380 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3381 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3382 int pipe
= intel_crtc
->pipe
;
3383 u32 reg
, temp
, i
, retry
;
3385 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3387 reg
= FDI_RX_IMR(pipe
);
3388 temp
= I915_READ(reg
);
3389 temp
&= ~FDI_RX_SYMBOL_LOCK
;
3390 temp
&= ~FDI_RX_BIT_LOCK
;
3391 I915_WRITE(reg
, temp
);
3396 /* enable CPU FDI TX and PCH FDI RX */
3397 reg
= FDI_TX_CTL(pipe
);
3398 temp
= I915_READ(reg
);
3399 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
3400 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
->fdi_lanes
);
3401 temp
&= ~FDI_LINK_TRAIN_NONE
;
3402 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3403 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3405 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
3406 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
3408 I915_WRITE(FDI_RX_MISC(pipe
),
3409 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
3411 reg
= FDI_RX_CTL(pipe
);
3412 temp
= I915_READ(reg
);
3413 if (HAS_PCH_CPT(dev
)) {
3414 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3415 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
3417 temp
&= ~FDI_LINK_TRAIN_NONE
;
3418 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3420 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
3425 for (i
= 0; i
< 4; i
++) {
3426 reg
= FDI_TX_CTL(pipe
);
3427 temp
= I915_READ(reg
);
3428 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3429 temp
|= snb_b_fdi_train_param
[i
];
3430 I915_WRITE(reg
, temp
);
3435 for (retry
= 0; retry
< 5; retry
++) {
3436 reg
= FDI_RX_IIR(pipe
);
3437 temp
= I915_READ(reg
);
3438 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3439 if (temp
& FDI_RX_BIT_LOCK
) {
3440 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
3441 DRM_DEBUG_KMS("FDI train 1 done.\n");
3450 DRM_ERROR("FDI train 1 fail!\n");
3453 reg
= FDI_TX_CTL(pipe
);
3454 temp
= I915_READ(reg
);
3455 temp
&= ~FDI_LINK_TRAIN_NONE
;
3456 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3458 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3460 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
3462 I915_WRITE(reg
, temp
);
3464 reg
= FDI_RX_CTL(pipe
);
3465 temp
= I915_READ(reg
);
3466 if (HAS_PCH_CPT(dev
)) {
3467 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3468 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
3470 temp
&= ~FDI_LINK_TRAIN_NONE
;
3471 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3473 I915_WRITE(reg
, temp
);
3478 for (i
= 0; i
< 4; i
++) {
3479 reg
= FDI_TX_CTL(pipe
);
3480 temp
= I915_READ(reg
);
3481 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3482 temp
|= snb_b_fdi_train_param
[i
];
3483 I915_WRITE(reg
, temp
);
3488 for (retry
= 0; retry
< 5; retry
++) {
3489 reg
= FDI_RX_IIR(pipe
);
3490 temp
= I915_READ(reg
);
3491 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3492 if (temp
& FDI_RX_SYMBOL_LOCK
) {
3493 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3494 DRM_DEBUG_KMS("FDI train 2 done.\n");
3503 DRM_ERROR("FDI train 2 fail!\n");
3505 DRM_DEBUG_KMS("FDI train done.\n");
3508 /* Manual link training for Ivy Bridge A0 parts */
3509 static void ivb_manual_fdi_link_train(struct drm_crtc
*crtc
)
3511 struct drm_device
*dev
= crtc
->dev
;
3512 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3513 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3514 int pipe
= intel_crtc
->pipe
;
3515 u32 reg
, temp
, i
, j
;
3517 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3519 reg
= FDI_RX_IMR(pipe
);
3520 temp
= I915_READ(reg
);
3521 temp
&= ~FDI_RX_SYMBOL_LOCK
;
3522 temp
&= ~FDI_RX_BIT_LOCK
;
3523 I915_WRITE(reg
, temp
);
3528 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
3529 I915_READ(FDI_RX_IIR(pipe
)));
3531 /* Try each vswing and preemphasis setting twice before moving on */
3532 for (j
= 0; j
< ARRAY_SIZE(snb_b_fdi_train_param
) * 2; j
++) {
3533 /* disable first in case we need to retry */
3534 reg
= FDI_TX_CTL(pipe
);
3535 temp
= I915_READ(reg
);
3536 temp
&= ~(FDI_LINK_TRAIN_AUTO
| FDI_LINK_TRAIN_NONE_IVB
);
3537 temp
&= ~FDI_TX_ENABLE
;
3538 I915_WRITE(reg
, temp
);
3540 reg
= FDI_RX_CTL(pipe
);
3541 temp
= I915_READ(reg
);
3542 temp
&= ~FDI_LINK_TRAIN_AUTO
;
3543 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3544 temp
&= ~FDI_RX_ENABLE
;
3545 I915_WRITE(reg
, temp
);
3547 /* enable CPU FDI TX and PCH FDI RX */
3548 reg
= FDI_TX_CTL(pipe
);
3549 temp
= I915_READ(reg
);
3550 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
3551 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
->fdi_lanes
);
3552 temp
|= FDI_LINK_TRAIN_PATTERN_1_IVB
;
3553 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3554 temp
|= snb_b_fdi_train_param
[j
/2];
3555 temp
|= FDI_COMPOSITE_SYNC
;
3556 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
3558 I915_WRITE(FDI_RX_MISC(pipe
),
3559 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
3561 reg
= FDI_RX_CTL(pipe
);
3562 temp
= I915_READ(reg
);
3563 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
3564 temp
|= FDI_COMPOSITE_SYNC
;
3565 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
3568 udelay(1); /* should be 0.5us */
3570 for (i
= 0; i
< 4; i
++) {
3571 reg
= FDI_RX_IIR(pipe
);
3572 temp
= I915_READ(reg
);
3573 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3575 if (temp
& FDI_RX_BIT_LOCK
||
3576 (I915_READ(reg
) & FDI_RX_BIT_LOCK
)) {
3577 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
3578 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n",
3582 udelay(1); /* should be 0.5us */
3585 DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j
/ 2);
3590 reg
= FDI_TX_CTL(pipe
);
3591 temp
= I915_READ(reg
);
3592 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
3593 temp
|= FDI_LINK_TRAIN_PATTERN_2_IVB
;
3594 I915_WRITE(reg
, temp
);
3596 reg
= FDI_RX_CTL(pipe
);
3597 temp
= I915_READ(reg
);
3598 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3599 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
3600 I915_WRITE(reg
, temp
);
3603 udelay(2); /* should be 1.5us */
3605 for (i
= 0; i
< 4; i
++) {
3606 reg
= FDI_RX_IIR(pipe
);
3607 temp
= I915_READ(reg
);
3608 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3610 if (temp
& FDI_RX_SYMBOL_LOCK
||
3611 (I915_READ(reg
) & FDI_RX_SYMBOL_LOCK
)) {
3612 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3613 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n",
3617 udelay(2); /* should be 1.5us */
3620 DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j
/ 2);
3624 DRM_DEBUG_KMS("FDI train done.\n");
3627 static void ironlake_fdi_pll_enable(struct intel_crtc
*intel_crtc
)
3629 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3630 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3631 int pipe
= intel_crtc
->pipe
;
3635 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
3636 reg
= FDI_RX_CTL(pipe
);
3637 temp
= I915_READ(reg
);
3638 temp
&= ~(FDI_DP_PORT_WIDTH_MASK
| (0x7 << 16));
3639 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
->fdi_lanes
);
3640 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
3641 I915_WRITE(reg
, temp
| FDI_RX_PLL_ENABLE
);
3646 /* Switch from Rawclk to PCDclk */
3647 temp
= I915_READ(reg
);
3648 I915_WRITE(reg
, temp
| FDI_PCDCLK
);
3653 /* Enable CPU FDI TX PLL, always on for Ironlake */
3654 reg
= FDI_TX_CTL(pipe
);
3655 temp
= I915_READ(reg
);
3656 if ((temp
& FDI_TX_PLL_ENABLE
) == 0) {
3657 I915_WRITE(reg
, temp
| FDI_TX_PLL_ENABLE
);
3664 static void ironlake_fdi_pll_disable(struct intel_crtc
*intel_crtc
)
3666 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3667 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3668 int pipe
= intel_crtc
->pipe
;
3671 /* Switch from PCDclk to Rawclk */
3672 reg
= FDI_RX_CTL(pipe
);
3673 temp
= I915_READ(reg
);
3674 I915_WRITE(reg
, temp
& ~FDI_PCDCLK
);
3676 /* Disable CPU FDI TX PLL */
3677 reg
= FDI_TX_CTL(pipe
);
3678 temp
= I915_READ(reg
);
3679 I915_WRITE(reg
, temp
& ~FDI_TX_PLL_ENABLE
);
3684 reg
= FDI_RX_CTL(pipe
);
3685 temp
= I915_READ(reg
);
3686 I915_WRITE(reg
, temp
& ~FDI_RX_PLL_ENABLE
);
3688 /* Wait for the clocks to turn off. */
3693 static void ironlake_fdi_disable(struct drm_crtc
*crtc
)
3695 struct drm_device
*dev
= crtc
->dev
;
3696 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3697 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3698 int pipe
= intel_crtc
->pipe
;
3701 /* disable CPU FDI tx and PCH FDI rx */
3702 reg
= FDI_TX_CTL(pipe
);
3703 temp
= I915_READ(reg
);
3704 I915_WRITE(reg
, temp
& ~FDI_TX_ENABLE
);
3707 reg
= FDI_RX_CTL(pipe
);
3708 temp
= I915_READ(reg
);
3709 temp
&= ~(0x7 << 16);
3710 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
3711 I915_WRITE(reg
, temp
& ~FDI_RX_ENABLE
);
3716 /* Ironlake workaround, disable clock pointer after downing FDI */
3717 if (HAS_PCH_IBX(dev
))
3718 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
3720 /* still set train pattern 1 */
3721 reg
= FDI_TX_CTL(pipe
);
3722 temp
= I915_READ(reg
);
3723 temp
&= ~FDI_LINK_TRAIN_NONE
;
3724 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3725 I915_WRITE(reg
, temp
);
3727 reg
= FDI_RX_CTL(pipe
);
3728 temp
= I915_READ(reg
);
3729 if (HAS_PCH_CPT(dev
)) {
3730 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3731 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
3733 temp
&= ~FDI_LINK_TRAIN_NONE
;
3734 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3736 /* BPC in FDI rx is consistent with that in PIPECONF */
3737 temp
&= ~(0x07 << 16);
3738 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
3739 I915_WRITE(reg
, temp
);
3745 bool intel_has_pending_fb_unpin(struct drm_device
*dev
)
3747 struct intel_crtc
*crtc
;
3749 /* Note that we don't need to be called with mode_config.lock here
3750 * as our list of CRTC objects is static for the lifetime of the
3751 * device and so cannot disappear as we iterate. Similarly, we can
3752 * happily treat the predicates as racy, atomic checks as userspace
3753 * cannot claim and pin a new fb without at least acquring the
3754 * struct_mutex and so serialising with us.
3756 for_each_intel_crtc(dev
, crtc
) {
3757 if (atomic_read(&crtc
->unpin_work_count
) == 0)
3760 if (crtc
->unpin_work
)
3761 intel_wait_for_vblank(dev
, crtc
->pipe
);
3769 static void page_flip_completed(struct intel_crtc
*intel_crtc
)
3771 struct drm_i915_private
*dev_priv
= to_i915(intel_crtc
->base
.dev
);
3772 struct intel_unpin_work
*work
= intel_crtc
->unpin_work
;
3774 /* ensure that the unpin work is consistent wrt ->pending. */
3776 intel_crtc
->unpin_work
= NULL
;
3779 drm_send_vblank_event(intel_crtc
->base
.dev
,
3783 drm_crtc_vblank_put(&intel_crtc
->base
);
3785 wake_up_all(&dev_priv
->pending_flip_queue
);
3786 queue_work(dev_priv
->wq
, &work
->work
);
3788 trace_i915_flip_complete(intel_crtc
->plane
,
3789 work
->pending_flip_obj
);
3792 void intel_crtc_wait_for_pending_flips(struct drm_crtc
*crtc
)
3794 struct drm_device
*dev
= crtc
->dev
;
3795 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3797 WARN_ON(waitqueue_active(&dev_priv
->pending_flip_queue
));
3798 if (WARN_ON(wait_event_timeout(dev_priv
->pending_flip_queue
,
3799 !intel_crtc_has_pending_flip(crtc
),
3801 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3803 spin_lock_irq(&dev
->event_lock
);
3804 if (intel_crtc
->unpin_work
) {
3805 WARN_ONCE(1, "Removing stuck page flip\n");
3806 page_flip_completed(intel_crtc
);
3808 spin_unlock_irq(&dev
->event_lock
);
3811 if (crtc
->primary
->fb
) {
3812 mutex_lock(&dev
->struct_mutex
);
3813 intel_finish_fb(crtc
->primary
->fb
);
3814 mutex_unlock(&dev
->struct_mutex
);
3818 /* Program iCLKIP clock to the desired frequency */
3819 static void lpt_program_iclkip(struct drm_crtc
*crtc
)
3821 struct drm_device
*dev
= crtc
->dev
;
3822 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3823 int clock
= to_intel_crtc(crtc
)->config
->base
.adjusted_mode
.crtc_clock
;
3824 u32 divsel
, phaseinc
, auxdiv
, phasedir
= 0;
3827 mutex_lock(&dev_priv
->dpio_lock
);
3829 /* It is necessary to ungate the pixclk gate prior to programming
3830 * the divisors, and gate it back when it is done.
3832 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_GATE
);
3834 /* Disable SSCCTL */
3835 intel_sbi_write(dev_priv
, SBI_SSCCTL6
,
3836 intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
) |
3840 /* 20MHz is a corner case which is out of range for the 7-bit divisor */
3841 if (clock
== 20000) {
3846 /* The iCLK virtual clock root frequency is in MHz,
3847 * but the adjusted_mode->crtc_clock in in KHz. To get the
3848 * divisors, it is necessary to divide one by another, so we
3849 * convert the virtual clock precision to KHz here for higher
3852 u32 iclk_virtual_root_freq
= 172800 * 1000;
3853 u32 iclk_pi_range
= 64;
3854 u32 desired_divisor
, msb_divisor_value
, pi_value
;
3856 desired_divisor
= (iclk_virtual_root_freq
/ clock
);
3857 msb_divisor_value
= desired_divisor
/ iclk_pi_range
;
3858 pi_value
= desired_divisor
% iclk_pi_range
;
3861 divsel
= msb_divisor_value
- 2;
3862 phaseinc
= pi_value
;
3865 /* This should not happen with any sane values */
3866 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel
) &
3867 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
);
3868 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir
) &
3869 ~SBI_SSCDIVINTPHASE_INCVAL_MASK
);
3871 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
3878 /* Program SSCDIVINTPHASE6 */
3879 temp
= intel_sbi_read(dev_priv
, SBI_SSCDIVINTPHASE6
, SBI_ICLK
);
3880 temp
&= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
;
3881 temp
|= SBI_SSCDIVINTPHASE_DIVSEL(divsel
);
3882 temp
&= ~SBI_SSCDIVINTPHASE_INCVAL_MASK
;
3883 temp
|= SBI_SSCDIVINTPHASE_INCVAL(phaseinc
);
3884 temp
|= SBI_SSCDIVINTPHASE_DIR(phasedir
);
3885 temp
|= SBI_SSCDIVINTPHASE_PROPAGATE
;
3886 intel_sbi_write(dev_priv
, SBI_SSCDIVINTPHASE6
, temp
, SBI_ICLK
);
3888 /* Program SSCAUXDIV */
3889 temp
= intel_sbi_read(dev_priv
, SBI_SSCAUXDIV6
, SBI_ICLK
);
3890 temp
&= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
3891 temp
|= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv
);
3892 intel_sbi_write(dev_priv
, SBI_SSCAUXDIV6
, temp
, SBI_ICLK
);
3894 /* Enable modulator and associated divider */
3895 temp
= intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
);
3896 temp
&= ~SBI_SSCCTL_DISABLE
;
3897 intel_sbi_write(dev_priv
, SBI_SSCCTL6
, temp
, SBI_ICLK
);
3899 /* Wait for initialization time */
3902 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_UNGATE
);
3904 mutex_unlock(&dev_priv
->dpio_lock
);
3907 static void ironlake_pch_transcoder_set_timings(struct intel_crtc
*crtc
,
3908 enum pipe pch_transcoder
)
3910 struct drm_device
*dev
= crtc
->base
.dev
;
3911 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3912 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
3914 I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder
),
3915 I915_READ(HTOTAL(cpu_transcoder
)));
3916 I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder
),
3917 I915_READ(HBLANK(cpu_transcoder
)));
3918 I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder
),
3919 I915_READ(HSYNC(cpu_transcoder
)));
3921 I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder
),
3922 I915_READ(VTOTAL(cpu_transcoder
)));
3923 I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder
),
3924 I915_READ(VBLANK(cpu_transcoder
)));
3925 I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder
),
3926 I915_READ(VSYNC(cpu_transcoder
)));
3927 I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder
),
3928 I915_READ(VSYNCSHIFT(cpu_transcoder
)));
3931 static void cpt_set_fdi_bc_bifurcation(struct drm_device
*dev
, bool enable
)
3933 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3936 temp
= I915_READ(SOUTH_CHICKEN1
);
3937 if (!!(temp
& FDI_BC_BIFURCATION_SELECT
) == enable
)
3940 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B
)) & FDI_RX_ENABLE
);
3941 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C
)) & FDI_RX_ENABLE
);
3943 temp
&= ~FDI_BC_BIFURCATION_SELECT
;
3945 temp
|= FDI_BC_BIFURCATION_SELECT
;
3947 DRM_DEBUG_KMS("%sabling fdi C rx\n", enable
? "en" : "dis");
3948 I915_WRITE(SOUTH_CHICKEN1
, temp
);
3949 POSTING_READ(SOUTH_CHICKEN1
);
3952 static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc
*intel_crtc
)
3954 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3956 switch (intel_crtc
->pipe
) {
3960 if (intel_crtc
->config
->fdi_lanes
> 2)
3961 cpt_set_fdi_bc_bifurcation(dev
, false);
3963 cpt_set_fdi_bc_bifurcation(dev
, true);
3967 cpt_set_fdi_bc_bifurcation(dev
, true);
3976 * Enable PCH resources required for PCH ports:
3978 * - FDI training & RX/TX
3979 * - update transcoder timings
3980 * - DP transcoding bits
3983 static void ironlake_pch_enable(struct drm_crtc
*crtc
)
3985 struct drm_device
*dev
= crtc
->dev
;
3986 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3987 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3988 int pipe
= intel_crtc
->pipe
;
3991 assert_pch_transcoder_disabled(dev_priv
, pipe
);
3993 if (IS_IVYBRIDGE(dev
))
3994 ivybridge_update_fdi_bc_bifurcation(intel_crtc
);
3996 /* Write the TU size bits before fdi link training, so that error
3997 * detection works. */
3998 I915_WRITE(FDI_RX_TUSIZE1(pipe
),
3999 I915_READ(PIPE_DATA_M1(pipe
)) & TU_SIZE_MASK
);
4001 /* For PCH output, training FDI link */
4002 dev_priv
->display
.fdi_link_train(crtc
);
4004 /* We need to program the right clock selection before writing the pixel
4005 * mutliplier into the DPLL. */
4006 if (HAS_PCH_CPT(dev
)) {
4009 temp
= I915_READ(PCH_DPLL_SEL
);
4010 temp
|= TRANS_DPLL_ENABLE(pipe
);
4011 sel
= TRANS_DPLLB_SEL(pipe
);
4012 if (intel_crtc
->config
->shared_dpll
== DPLL_ID_PCH_PLL_B
)
4016 I915_WRITE(PCH_DPLL_SEL
, temp
);
4019 /* XXX: pch pll's can be enabled any time before we enable the PCH
4020 * transcoder, and we actually should do this to not upset any PCH
4021 * transcoder that already use the clock when we share it.
4023 * Note that enable_shared_dpll tries to do the right thing, but
4024 * get_shared_dpll unconditionally resets the pll - we need that to have
4025 * the right LVDS enable sequence. */
4026 intel_enable_shared_dpll(intel_crtc
);
4028 /* set transcoder timing, panel must allow it */
4029 assert_panel_unlocked(dev_priv
, pipe
);
4030 ironlake_pch_transcoder_set_timings(intel_crtc
, pipe
);
4032 intel_fdi_normal_train(crtc
);
4034 /* For PCH DP, enable TRANS_DP_CTL */
4035 if (HAS_PCH_CPT(dev
) && intel_crtc
->config
->has_dp_encoder
) {
4036 u32 bpc
= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) >> 5;
4037 reg
= TRANS_DP_CTL(pipe
);
4038 temp
= I915_READ(reg
);
4039 temp
&= ~(TRANS_DP_PORT_SEL_MASK
|
4040 TRANS_DP_SYNC_MASK
|
4042 temp
|= (TRANS_DP_OUTPUT_ENABLE
|
4043 TRANS_DP_ENH_FRAMING
);
4044 temp
|= bpc
<< 9; /* same format but at 11:9 */
4046 if (crtc
->mode
.flags
& DRM_MODE_FLAG_PHSYNC
)
4047 temp
|= TRANS_DP_HSYNC_ACTIVE_HIGH
;
4048 if (crtc
->mode
.flags
& DRM_MODE_FLAG_PVSYNC
)
4049 temp
|= TRANS_DP_VSYNC_ACTIVE_HIGH
;
4051 switch (intel_trans_dp_port_sel(crtc
)) {
4053 temp
|= TRANS_DP_PORT_SEL_B
;
4056 temp
|= TRANS_DP_PORT_SEL_C
;
4059 temp
|= TRANS_DP_PORT_SEL_D
;
4065 I915_WRITE(reg
, temp
);
4068 ironlake_enable_pch_transcoder(dev_priv
, pipe
);
4071 static void lpt_pch_enable(struct drm_crtc
*crtc
)
4073 struct drm_device
*dev
= crtc
->dev
;
4074 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4075 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4076 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
4078 assert_pch_transcoder_disabled(dev_priv
, TRANSCODER_A
);
4080 lpt_program_iclkip(crtc
);
4082 /* Set transcoder timing. */
4083 ironlake_pch_transcoder_set_timings(intel_crtc
, PIPE_A
);
4085 lpt_enable_pch_transcoder(dev_priv
, cpu_transcoder
);
4088 void intel_put_shared_dpll(struct intel_crtc
*crtc
)
4090 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
4095 if (!(pll
->config
.crtc_mask
& (1 << crtc
->pipe
))) {
4096 WARN(1, "bad %s crtc mask\n", pll
->name
);
4100 pll
->config
.crtc_mask
&= ~(1 << crtc
->pipe
);
4101 if (pll
->config
.crtc_mask
== 0) {
4103 WARN_ON(pll
->active
);
4106 crtc
->config
->shared_dpll
= DPLL_ID_PRIVATE
;
4109 struct intel_shared_dpll
*intel_get_shared_dpll(struct intel_crtc
*crtc
,
4110 struct intel_crtc_state
*crtc_state
)
4112 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
4113 struct intel_shared_dpll
*pll
;
4114 enum intel_dpll_id i
;
4116 if (HAS_PCH_IBX(dev_priv
->dev
)) {
4117 /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
4118 i
= (enum intel_dpll_id
) crtc
->pipe
;
4119 pll
= &dev_priv
->shared_dplls
[i
];
4121 DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n",
4122 crtc
->base
.base
.id
, pll
->name
);
4124 WARN_ON(pll
->new_config
->crtc_mask
);
4129 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
4130 pll
= &dev_priv
->shared_dplls
[i
];
4132 /* Only want to check enabled timings first */
4133 if (pll
->new_config
->crtc_mask
== 0)
4136 if (memcmp(&crtc_state
->dpll_hw_state
,
4137 &pll
->new_config
->hw_state
,
4138 sizeof(pll
->new_config
->hw_state
)) == 0) {
4139 DRM_DEBUG_KMS("CRTC:%d sharing existing %s (crtc mask 0x%08x, ative %d)\n",
4140 crtc
->base
.base
.id
, pll
->name
,
4141 pll
->new_config
->crtc_mask
,
4147 /* Ok no matching timings, maybe there's a free one? */
4148 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
4149 pll
= &dev_priv
->shared_dplls
[i
];
4150 if (pll
->new_config
->crtc_mask
== 0) {
4151 DRM_DEBUG_KMS("CRTC:%d allocated %s\n",
4152 crtc
->base
.base
.id
, pll
->name
);
4160 if (pll
->new_config
->crtc_mask
== 0)
4161 pll
->new_config
->hw_state
= crtc_state
->dpll_hw_state
;
4163 crtc_state
->shared_dpll
= i
;
4164 DRM_DEBUG_DRIVER("using %s for pipe %c\n", pll
->name
,
4165 pipe_name(crtc
->pipe
));
4167 pll
->new_config
->crtc_mask
|= 1 << crtc
->pipe
;
4173 * intel_shared_dpll_start_config - start a new PLL staged config
4174 * @dev_priv: DRM device
4175 * @clear_pipes: mask of pipes that will have their PLLs freed
4177 * Starts a new PLL staged config, copying the current config but
4178 * releasing the references of pipes specified in clear_pipes.
4180 static int intel_shared_dpll_start_config(struct drm_i915_private
*dev_priv
,
4181 unsigned clear_pipes
)
4183 struct intel_shared_dpll
*pll
;
4184 enum intel_dpll_id i
;
4186 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
4187 pll
= &dev_priv
->shared_dplls
[i
];
4189 pll
->new_config
= kmemdup(&pll
->config
, sizeof pll
->config
,
4191 if (!pll
->new_config
)
4194 pll
->new_config
->crtc_mask
&= ~clear_pipes
;
4201 pll
= &dev_priv
->shared_dplls
[i
];
4202 kfree(pll
->new_config
);
4203 pll
->new_config
= NULL
;
4209 static void intel_shared_dpll_commit(struct drm_i915_private
*dev_priv
)
4211 struct intel_shared_dpll
*pll
;
4212 enum intel_dpll_id i
;
4214 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
4215 pll
= &dev_priv
->shared_dplls
[i
];
4217 WARN_ON(pll
->new_config
== &pll
->config
);
4219 pll
->config
= *pll
->new_config
;
4220 kfree(pll
->new_config
);
4221 pll
->new_config
= NULL
;
4225 static void intel_shared_dpll_abort_config(struct drm_i915_private
*dev_priv
)
4227 struct intel_shared_dpll
*pll
;
4228 enum intel_dpll_id i
;
4230 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
4231 pll
= &dev_priv
->shared_dplls
[i
];
4233 WARN_ON(pll
->new_config
== &pll
->config
);
4235 kfree(pll
->new_config
);
4236 pll
->new_config
= NULL
;
4240 static void cpt_verify_modeset(struct drm_device
*dev
, int pipe
)
4242 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4243 int dslreg
= PIPEDSL(pipe
);
4246 temp
= I915_READ(dslreg
);
4248 if (wait_for(I915_READ(dslreg
) != temp
, 5)) {
4249 if (wait_for(I915_READ(dslreg
) != temp
, 5))
4250 DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe
));
4254 static void skylake_pfit_enable(struct intel_crtc
*crtc
)
4256 struct drm_device
*dev
= crtc
->base
.dev
;
4257 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4258 int pipe
= crtc
->pipe
;
4260 if (crtc
->config
->pch_pfit
.enabled
) {
4261 I915_WRITE(PS_CTL(pipe
), PS_ENABLE
);
4262 I915_WRITE(PS_WIN_POS(pipe
), crtc
->config
->pch_pfit
.pos
);
4263 I915_WRITE(PS_WIN_SZ(pipe
), crtc
->config
->pch_pfit
.size
);
4267 static void ironlake_pfit_enable(struct intel_crtc
*crtc
)
4269 struct drm_device
*dev
= crtc
->base
.dev
;
4270 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4271 int pipe
= crtc
->pipe
;
4273 if (crtc
->config
->pch_pfit
.enabled
) {
4274 /* Force use of hard-coded filter coefficients
4275 * as some pre-programmed values are broken,
4278 if (IS_IVYBRIDGE(dev
) || IS_HASWELL(dev
))
4279 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
|
4280 PF_PIPE_SEL_IVB(pipe
));
4282 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
);
4283 I915_WRITE(PF_WIN_POS(pipe
), crtc
->config
->pch_pfit
.pos
);
4284 I915_WRITE(PF_WIN_SZ(pipe
), crtc
->config
->pch_pfit
.size
);
4288 static void intel_enable_sprite_planes(struct drm_crtc
*crtc
)
4290 struct drm_device
*dev
= crtc
->dev
;
4291 enum pipe pipe
= to_intel_crtc(crtc
)->pipe
;
4292 struct drm_plane
*plane
;
4293 struct intel_plane
*intel_plane
;
4295 drm_for_each_legacy_plane(plane
, &dev
->mode_config
.plane_list
) {
4296 intel_plane
= to_intel_plane(plane
);
4297 if (intel_plane
->pipe
== pipe
)
4298 intel_plane_restore(&intel_plane
->base
);
4303 * Disable a plane internally without actually modifying the plane's state.
4304 * This will allow us to easily restore the plane later by just reprogramming
4307 static void disable_plane_internal(struct drm_plane
*plane
)
4309 struct intel_plane
*intel_plane
= to_intel_plane(plane
);
4310 struct drm_plane_state
*state
=
4311 plane
->funcs
->atomic_duplicate_state(plane
);
4312 struct intel_plane_state
*intel_state
= to_intel_plane_state(state
);
4314 intel_state
->visible
= false;
4315 intel_plane
->commit_plane(plane
, intel_state
);
4317 intel_plane_destroy_state(plane
, state
);
4320 static void intel_disable_sprite_planes(struct drm_crtc
*crtc
)
4322 struct drm_device
*dev
= crtc
->dev
;
4323 enum pipe pipe
= to_intel_crtc(crtc
)->pipe
;
4324 struct drm_plane
*plane
;
4325 struct intel_plane
*intel_plane
;
4327 drm_for_each_legacy_plane(plane
, &dev
->mode_config
.plane_list
) {
4328 intel_plane
= to_intel_plane(plane
);
4329 if (plane
->fb
&& intel_plane
->pipe
== pipe
)
4330 disable_plane_internal(plane
);
4334 void hsw_enable_ips(struct intel_crtc
*crtc
)
4336 struct drm_device
*dev
= crtc
->base
.dev
;
4337 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4339 if (!crtc
->config
->ips_enabled
)
4342 /* We can only enable IPS after we enable a plane and wait for a vblank */
4343 intel_wait_for_vblank(dev
, crtc
->pipe
);
4345 assert_plane_enabled(dev_priv
, crtc
->plane
);
4346 if (IS_BROADWELL(dev
)) {
4347 mutex_lock(&dev_priv
->rps
.hw_lock
);
4348 WARN_ON(sandybridge_pcode_write(dev_priv
, DISPLAY_IPS_CONTROL
, 0xc0000000));
4349 mutex_unlock(&dev_priv
->rps
.hw_lock
);
4350 /* Quoting Art Runyan: "its not safe to expect any particular
4351 * value in IPS_CTL bit 31 after enabling IPS through the
4352 * mailbox." Moreover, the mailbox may return a bogus state,
4353 * so we need to just enable it and continue on.
4356 I915_WRITE(IPS_CTL
, IPS_ENABLE
);
4357 /* The bit only becomes 1 in the next vblank, so this wait here
4358 * is essentially intel_wait_for_vblank. If we don't have this
4359 * and don't wait for vblanks until the end of crtc_enable, then
4360 * the HW state readout code will complain that the expected
4361 * IPS_CTL value is not the one we read. */
4362 if (wait_for(I915_READ_NOTRACE(IPS_CTL
) & IPS_ENABLE
, 50))
4363 DRM_ERROR("Timed out waiting for IPS enable\n");
4367 void hsw_disable_ips(struct intel_crtc
*crtc
)
4369 struct drm_device
*dev
= crtc
->base
.dev
;
4370 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4372 if (!crtc
->config
->ips_enabled
)
4375 assert_plane_enabled(dev_priv
, crtc
->plane
);
4376 if (IS_BROADWELL(dev
)) {
4377 mutex_lock(&dev_priv
->rps
.hw_lock
);
4378 WARN_ON(sandybridge_pcode_write(dev_priv
, DISPLAY_IPS_CONTROL
, 0));
4379 mutex_unlock(&dev_priv
->rps
.hw_lock
);
4380 /* wait for pcode to finish disabling IPS, which may take up to 42ms */
4381 if (wait_for((I915_READ(IPS_CTL
) & IPS_ENABLE
) == 0, 42))
4382 DRM_ERROR("Timed out waiting for IPS disable\n");
4384 I915_WRITE(IPS_CTL
, 0);
4385 POSTING_READ(IPS_CTL
);
4388 /* We need to wait for a vblank before we can disable the plane. */
4389 intel_wait_for_vblank(dev
, crtc
->pipe
);
4392 /** Loads the palette/gamma unit for the CRTC with the prepared values */
4393 static void intel_crtc_load_lut(struct drm_crtc
*crtc
)
4395 struct drm_device
*dev
= crtc
->dev
;
4396 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4397 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4398 enum pipe pipe
= intel_crtc
->pipe
;
4399 int palreg
= PALETTE(pipe
);
4401 bool reenable_ips
= false;
4403 /* The clocks have to be on to load the palette. */
4404 if (!crtc
->state
->enable
|| !intel_crtc
->active
)
4407 if (!HAS_PCH_SPLIT(dev_priv
->dev
)) {
4408 if (intel_pipe_has_type(intel_crtc
, INTEL_OUTPUT_DSI
))
4409 assert_dsi_pll_enabled(dev_priv
);
4411 assert_pll_enabled(dev_priv
, pipe
);
4414 /* use legacy palette for Ironlake */
4415 if (!HAS_GMCH_DISPLAY(dev
))
4416 palreg
= LGC_PALETTE(pipe
);
4418 /* Workaround : Do not read or write the pipe palette/gamma data while
4419 * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled.
4421 if (IS_HASWELL(dev
) && intel_crtc
->config
->ips_enabled
&&
4422 ((I915_READ(GAMMA_MODE(pipe
)) & GAMMA_MODE_MODE_MASK
) ==
4423 GAMMA_MODE_MODE_SPLIT
)) {
4424 hsw_disable_ips(intel_crtc
);
4425 reenable_ips
= true;
4428 for (i
= 0; i
< 256; i
++) {
4429 I915_WRITE(palreg
+ 4 * i
,
4430 (intel_crtc
->lut_r
[i
] << 16) |
4431 (intel_crtc
->lut_g
[i
] << 8) |
4432 intel_crtc
->lut_b
[i
]);
4436 hsw_enable_ips(intel_crtc
);
4439 static void intel_crtc_dpms_overlay(struct intel_crtc
*intel_crtc
, bool enable
)
4441 if (!enable
&& intel_crtc
->overlay
) {
4442 struct drm_device
*dev
= intel_crtc
->base
.dev
;
4443 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4445 mutex_lock(&dev
->struct_mutex
);
4446 dev_priv
->mm
.interruptible
= false;
4447 (void) intel_overlay_switch_off(intel_crtc
->overlay
);
4448 dev_priv
->mm
.interruptible
= true;
4449 mutex_unlock(&dev
->struct_mutex
);
4452 /* Let userspace switch the overlay on again. In most cases userspace
4453 * has to recompute where to put it anyway.
4457 static void intel_crtc_enable_planes(struct drm_crtc
*crtc
)
4459 struct drm_device
*dev
= crtc
->dev
;
4460 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4461 int pipe
= intel_crtc
->pipe
;
4463 intel_enable_primary_hw_plane(crtc
->primary
, crtc
);
4464 intel_enable_sprite_planes(crtc
);
4465 intel_crtc_update_cursor(crtc
, true);
4466 intel_crtc_dpms_overlay(intel_crtc
, true);
4468 hsw_enable_ips(intel_crtc
);
4470 mutex_lock(&dev
->struct_mutex
);
4471 intel_fbc_update(dev
);
4472 mutex_unlock(&dev
->struct_mutex
);
4475 * FIXME: Once we grow proper nuclear flip support out of this we need
4476 * to compute the mask of flip planes precisely. For the time being
4477 * consider this a flip from a NULL plane.
4479 intel_frontbuffer_flip(dev
, INTEL_FRONTBUFFER_ALL_MASK(pipe
));
4482 static void intel_crtc_disable_planes(struct drm_crtc
*crtc
)
4484 struct drm_device
*dev
= crtc
->dev
;
4485 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4486 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4487 int pipe
= intel_crtc
->pipe
;
4489 intel_crtc_wait_for_pending_flips(crtc
);
4491 if (dev_priv
->fbc
.crtc
== intel_crtc
)
4492 intel_fbc_disable(dev
);
4494 hsw_disable_ips(intel_crtc
);
4496 intel_crtc_dpms_overlay(intel_crtc
, false);
4497 intel_crtc_update_cursor(crtc
, false);
4498 intel_disable_sprite_planes(crtc
);
4499 intel_disable_primary_hw_plane(crtc
->primary
, crtc
);
4502 * FIXME: Once we grow proper nuclear flip support out of this we need
4503 * to compute the mask of flip planes precisely. For the time being
4504 * consider this a flip to a NULL plane.
4506 intel_frontbuffer_flip(dev
, INTEL_FRONTBUFFER_ALL_MASK(pipe
));
4509 static void ironlake_crtc_enable(struct drm_crtc
*crtc
)
4511 struct drm_device
*dev
= crtc
->dev
;
4512 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4513 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4514 struct intel_encoder
*encoder
;
4515 int pipe
= intel_crtc
->pipe
;
4517 WARN_ON(!crtc
->state
->enable
);
4519 if (intel_crtc
->active
)
4522 if (intel_crtc
->config
->has_pch_encoder
)
4523 intel_prepare_shared_dpll(intel_crtc
);
4525 if (intel_crtc
->config
->has_dp_encoder
)
4526 intel_dp_set_m_n(intel_crtc
, M1_N1
);
4528 intel_set_pipe_timings(intel_crtc
);
4530 if (intel_crtc
->config
->has_pch_encoder
) {
4531 intel_cpu_transcoder_set_m_n(intel_crtc
,
4532 &intel_crtc
->config
->fdi_m_n
, NULL
);
4535 ironlake_set_pipeconf(crtc
);
4537 intel_crtc
->active
= true;
4539 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
4540 intel_set_pch_fifo_underrun_reporting(dev_priv
, pipe
, true);
4542 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4543 if (encoder
->pre_enable
)
4544 encoder
->pre_enable(encoder
);
4546 if (intel_crtc
->config
->has_pch_encoder
) {
4547 /* Note: FDI PLL enabling _must_ be done before we enable the
4548 * cpu pipes, hence this is separate from all the other fdi/pch
4550 ironlake_fdi_pll_enable(intel_crtc
);
4552 assert_fdi_tx_disabled(dev_priv
, pipe
);
4553 assert_fdi_rx_disabled(dev_priv
, pipe
);
4556 ironlake_pfit_enable(intel_crtc
);
4559 * On ILK+ LUT must be loaded before the pipe is running but with
4562 intel_crtc_load_lut(crtc
);
4564 intel_update_watermarks(crtc
);
4565 intel_enable_pipe(intel_crtc
);
4567 if (intel_crtc
->config
->has_pch_encoder
)
4568 ironlake_pch_enable(crtc
);
4570 assert_vblank_disabled(crtc
);
4571 drm_crtc_vblank_on(crtc
);
4573 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4574 encoder
->enable(encoder
);
4576 if (HAS_PCH_CPT(dev
))
4577 cpt_verify_modeset(dev
, intel_crtc
->pipe
);
4579 intel_crtc_enable_planes(crtc
);
4582 /* IPS only exists on ULT machines and is tied to pipe A. */
4583 static bool hsw_crtc_supports_ips(struct intel_crtc
*crtc
)
4585 return HAS_IPS(crtc
->base
.dev
) && crtc
->pipe
== PIPE_A
;
4589 * This implements the workaround described in the "notes" section of the mode
4590 * set sequence documentation. When going from no pipes or single pipe to
4591 * multiple pipes, and planes are enabled after the pipe, we need to wait at
4592 * least 2 vblanks on the first pipe before enabling planes on the second pipe.
4594 static void haswell_mode_set_planes_workaround(struct intel_crtc
*crtc
)
4596 struct drm_device
*dev
= crtc
->base
.dev
;
4597 struct intel_crtc
*crtc_it
, *other_active_crtc
= NULL
;
4599 /* We want to get the other_active_crtc only if there's only 1 other
4601 for_each_intel_crtc(dev
, crtc_it
) {
4602 if (!crtc_it
->active
|| crtc_it
== crtc
)
4605 if (other_active_crtc
)
4608 other_active_crtc
= crtc_it
;
4610 if (!other_active_crtc
)
4613 intel_wait_for_vblank(dev
, other_active_crtc
->pipe
);
4614 intel_wait_for_vblank(dev
, other_active_crtc
->pipe
);
4617 static void haswell_crtc_enable(struct drm_crtc
*crtc
)
4619 struct drm_device
*dev
= crtc
->dev
;
4620 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4621 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4622 struct intel_encoder
*encoder
;
4623 int pipe
= intel_crtc
->pipe
;
4625 WARN_ON(!crtc
->state
->enable
);
4627 if (intel_crtc
->active
)
4630 if (intel_crtc_to_shared_dpll(intel_crtc
))
4631 intel_enable_shared_dpll(intel_crtc
);
4633 if (intel_crtc
->config
->has_dp_encoder
)
4634 intel_dp_set_m_n(intel_crtc
, M1_N1
);
4636 intel_set_pipe_timings(intel_crtc
);
4638 if (intel_crtc
->config
->cpu_transcoder
!= TRANSCODER_EDP
) {
4639 I915_WRITE(PIPE_MULT(intel_crtc
->config
->cpu_transcoder
),
4640 intel_crtc
->config
->pixel_multiplier
- 1);
4643 if (intel_crtc
->config
->has_pch_encoder
) {
4644 intel_cpu_transcoder_set_m_n(intel_crtc
,
4645 &intel_crtc
->config
->fdi_m_n
, NULL
);
4648 haswell_set_pipeconf(crtc
);
4650 intel_set_pipe_csc(crtc
);
4652 intel_crtc
->active
= true;
4654 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
4655 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4656 if (encoder
->pre_enable
)
4657 encoder
->pre_enable(encoder
);
4659 if (intel_crtc
->config
->has_pch_encoder
) {
4660 intel_set_pch_fifo_underrun_reporting(dev_priv
, TRANSCODER_A
,
4662 dev_priv
->display
.fdi_link_train(crtc
);
4665 intel_ddi_enable_pipe_clock(intel_crtc
);
4667 if (IS_SKYLAKE(dev
))
4668 skylake_pfit_enable(intel_crtc
);
4670 ironlake_pfit_enable(intel_crtc
);
4673 * On ILK+ LUT must be loaded before the pipe is running but with
4676 intel_crtc_load_lut(crtc
);
4678 intel_ddi_set_pipe_settings(crtc
);
4679 intel_ddi_enable_transcoder_func(crtc
);
4681 intel_update_watermarks(crtc
);
4682 intel_enable_pipe(intel_crtc
);
4684 if (intel_crtc
->config
->has_pch_encoder
)
4685 lpt_pch_enable(crtc
);
4687 if (intel_crtc
->config
->dp_encoder_is_mst
)
4688 intel_ddi_set_vc_payload_alloc(crtc
, true);
4690 assert_vblank_disabled(crtc
);
4691 drm_crtc_vblank_on(crtc
);
4693 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
4694 encoder
->enable(encoder
);
4695 intel_opregion_notify_encoder(encoder
, true);
4698 /* If we change the relative order between pipe/planes enabling, we need
4699 * to change the workaround. */
4700 haswell_mode_set_planes_workaround(intel_crtc
);
4701 intel_crtc_enable_planes(crtc
);
4704 static void skylake_pfit_disable(struct intel_crtc
*crtc
)
4706 struct drm_device
*dev
= crtc
->base
.dev
;
4707 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4708 int pipe
= crtc
->pipe
;
4710 /* To avoid upsetting the power well on haswell only disable the pfit if
4711 * it's in use. The hw state code will make sure we get this right. */
4712 if (crtc
->config
->pch_pfit
.enabled
) {
4713 I915_WRITE(PS_CTL(pipe
), 0);
4714 I915_WRITE(PS_WIN_POS(pipe
), 0);
4715 I915_WRITE(PS_WIN_SZ(pipe
), 0);
4719 static void ironlake_pfit_disable(struct intel_crtc
*crtc
)
4721 struct drm_device
*dev
= crtc
->base
.dev
;
4722 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4723 int pipe
= crtc
->pipe
;
4725 /* To avoid upsetting the power well on haswell only disable the pfit if
4726 * it's in use. The hw state code will make sure we get this right. */
4727 if (crtc
->config
->pch_pfit
.enabled
) {
4728 I915_WRITE(PF_CTL(pipe
), 0);
4729 I915_WRITE(PF_WIN_POS(pipe
), 0);
4730 I915_WRITE(PF_WIN_SZ(pipe
), 0);
4734 static void ironlake_crtc_disable(struct drm_crtc
*crtc
)
4736 struct drm_device
*dev
= crtc
->dev
;
4737 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4738 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4739 struct intel_encoder
*encoder
;
4740 int pipe
= intel_crtc
->pipe
;
4743 if (!intel_crtc
->active
)
4746 intel_crtc_disable_planes(crtc
);
4748 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4749 encoder
->disable(encoder
);
4751 drm_crtc_vblank_off(crtc
);
4752 assert_vblank_disabled(crtc
);
4754 if (intel_crtc
->config
->has_pch_encoder
)
4755 intel_set_pch_fifo_underrun_reporting(dev_priv
, pipe
, false);
4757 intel_disable_pipe(intel_crtc
);
4759 ironlake_pfit_disable(intel_crtc
);
4761 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4762 if (encoder
->post_disable
)
4763 encoder
->post_disable(encoder
);
4765 if (intel_crtc
->config
->has_pch_encoder
) {
4766 ironlake_fdi_disable(crtc
);
4768 ironlake_disable_pch_transcoder(dev_priv
, pipe
);
4770 if (HAS_PCH_CPT(dev
)) {
4771 /* disable TRANS_DP_CTL */
4772 reg
= TRANS_DP_CTL(pipe
);
4773 temp
= I915_READ(reg
);
4774 temp
&= ~(TRANS_DP_OUTPUT_ENABLE
|
4775 TRANS_DP_PORT_SEL_MASK
);
4776 temp
|= TRANS_DP_PORT_SEL_NONE
;
4777 I915_WRITE(reg
, temp
);
4779 /* disable DPLL_SEL */
4780 temp
= I915_READ(PCH_DPLL_SEL
);
4781 temp
&= ~(TRANS_DPLL_ENABLE(pipe
) | TRANS_DPLLB_SEL(pipe
));
4782 I915_WRITE(PCH_DPLL_SEL
, temp
);
4785 /* disable PCH DPLL */
4786 intel_disable_shared_dpll(intel_crtc
);
4788 ironlake_fdi_pll_disable(intel_crtc
);
4791 intel_crtc
->active
= false;
4792 intel_update_watermarks(crtc
);
4794 mutex_lock(&dev
->struct_mutex
);
4795 intel_fbc_update(dev
);
4796 mutex_unlock(&dev
->struct_mutex
);
4799 static void haswell_crtc_disable(struct drm_crtc
*crtc
)
4801 struct drm_device
*dev
= crtc
->dev
;
4802 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4803 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4804 struct intel_encoder
*encoder
;
4805 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
4807 if (!intel_crtc
->active
)
4810 intel_crtc_disable_planes(crtc
);
4812 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
4813 intel_opregion_notify_encoder(encoder
, false);
4814 encoder
->disable(encoder
);
4817 drm_crtc_vblank_off(crtc
);
4818 assert_vblank_disabled(crtc
);
4820 if (intel_crtc
->config
->has_pch_encoder
)
4821 intel_set_pch_fifo_underrun_reporting(dev_priv
, TRANSCODER_A
,
4823 intel_disable_pipe(intel_crtc
);
4825 if (intel_crtc
->config
->dp_encoder_is_mst
)
4826 intel_ddi_set_vc_payload_alloc(crtc
, false);
4828 intel_ddi_disable_transcoder_func(dev_priv
, cpu_transcoder
);
4830 if (IS_SKYLAKE(dev
))
4831 skylake_pfit_disable(intel_crtc
);
4833 ironlake_pfit_disable(intel_crtc
);
4835 intel_ddi_disable_pipe_clock(intel_crtc
);
4837 if (intel_crtc
->config
->has_pch_encoder
) {
4838 lpt_disable_pch_transcoder(dev_priv
);
4839 intel_ddi_fdi_disable(crtc
);
4842 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4843 if (encoder
->post_disable
)
4844 encoder
->post_disable(encoder
);
4846 intel_crtc
->active
= false;
4847 intel_update_watermarks(crtc
);
4849 mutex_lock(&dev
->struct_mutex
);
4850 intel_fbc_update(dev
);
4851 mutex_unlock(&dev
->struct_mutex
);
4853 if (intel_crtc_to_shared_dpll(intel_crtc
))
4854 intel_disable_shared_dpll(intel_crtc
);
4857 static void ironlake_crtc_off(struct drm_crtc
*crtc
)
4859 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4860 intel_put_shared_dpll(intel_crtc
);
4864 static void i9xx_pfit_enable(struct intel_crtc
*crtc
)
4866 struct drm_device
*dev
= crtc
->base
.dev
;
4867 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4868 struct intel_crtc_state
*pipe_config
= crtc
->config
;
4870 if (!pipe_config
->gmch_pfit
.control
)
4874 * The panel fitter should only be adjusted whilst the pipe is disabled,
4875 * according to register description and PRM.
4877 WARN_ON(I915_READ(PFIT_CONTROL
) & PFIT_ENABLE
);
4878 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
4880 I915_WRITE(PFIT_PGM_RATIOS
, pipe_config
->gmch_pfit
.pgm_ratios
);
4881 I915_WRITE(PFIT_CONTROL
, pipe_config
->gmch_pfit
.control
);
4883 /* Border color in case we don't scale up to the full screen. Black by
4884 * default, change to something else for debugging. */
4885 I915_WRITE(BCLRPAT(crtc
->pipe
), 0);
4888 static enum intel_display_power_domain
port_to_power_domain(enum port port
)
4892 return POWER_DOMAIN_PORT_DDI_A_4_LANES
;
4894 return POWER_DOMAIN_PORT_DDI_B_4_LANES
;
4896 return POWER_DOMAIN_PORT_DDI_C_4_LANES
;
4898 return POWER_DOMAIN_PORT_DDI_D_4_LANES
;
4901 return POWER_DOMAIN_PORT_OTHER
;
4905 #define for_each_power_domain(domain, mask) \
4906 for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
4907 if ((1 << (domain)) & (mask))
4909 enum intel_display_power_domain
4910 intel_display_port_power_domain(struct intel_encoder
*intel_encoder
)
4912 struct drm_device
*dev
= intel_encoder
->base
.dev
;
4913 struct intel_digital_port
*intel_dig_port
;
4915 switch (intel_encoder
->type
) {
4916 case INTEL_OUTPUT_UNKNOWN
:
4917 /* Only DDI platforms should ever use this output type */
4918 WARN_ON_ONCE(!HAS_DDI(dev
));
4919 case INTEL_OUTPUT_DISPLAYPORT
:
4920 case INTEL_OUTPUT_HDMI
:
4921 case INTEL_OUTPUT_EDP
:
4922 intel_dig_port
= enc_to_dig_port(&intel_encoder
->base
);
4923 return port_to_power_domain(intel_dig_port
->port
);
4924 case INTEL_OUTPUT_DP_MST
:
4925 intel_dig_port
= enc_to_mst(&intel_encoder
->base
)->primary
;
4926 return port_to_power_domain(intel_dig_port
->port
);
4927 case INTEL_OUTPUT_ANALOG
:
4928 return POWER_DOMAIN_PORT_CRT
;
4929 case INTEL_OUTPUT_DSI
:
4930 return POWER_DOMAIN_PORT_DSI
;
4932 return POWER_DOMAIN_PORT_OTHER
;
4936 static unsigned long get_crtc_power_domains(struct drm_crtc
*crtc
)
4938 struct drm_device
*dev
= crtc
->dev
;
4939 struct intel_encoder
*intel_encoder
;
4940 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4941 enum pipe pipe
= intel_crtc
->pipe
;
4943 enum transcoder transcoder
;
4945 transcoder
= intel_pipe_to_cpu_transcoder(dev
->dev_private
, pipe
);
4947 mask
= BIT(POWER_DOMAIN_PIPE(pipe
));
4948 mask
|= BIT(POWER_DOMAIN_TRANSCODER(transcoder
));
4949 if (intel_crtc
->config
->pch_pfit
.enabled
||
4950 intel_crtc
->config
->pch_pfit
.force_thru
)
4951 mask
|= BIT(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe
));
4953 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
)
4954 mask
|= BIT(intel_display_port_power_domain(intel_encoder
));
4959 static void modeset_update_crtc_power_domains(struct drm_atomic_state
*state
)
4961 struct drm_device
*dev
= state
->dev
;
4962 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4963 unsigned long pipe_domains
[I915_MAX_PIPES
] = { 0, };
4964 struct intel_crtc
*crtc
;
4967 * First get all needed power domains, then put all unneeded, to avoid
4968 * any unnecessary toggling of the power wells.
4970 for_each_intel_crtc(dev
, crtc
) {
4971 enum intel_display_power_domain domain
;
4973 if (!crtc
->base
.state
->enable
)
4976 pipe_domains
[crtc
->pipe
] = get_crtc_power_domains(&crtc
->base
);
4978 for_each_power_domain(domain
, pipe_domains
[crtc
->pipe
])
4979 intel_display_power_get(dev_priv
, domain
);
4982 if (dev_priv
->display
.modeset_global_resources
)
4983 dev_priv
->display
.modeset_global_resources(state
);
4985 for_each_intel_crtc(dev
, crtc
) {
4986 enum intel_display_power_domain domain
;
4988 for_each_power_domain(domain
, crtc
->enabled_power_domains
)
4989 intel_display_power_put(dev_priv
, domain
);
4991 crtc
->enabled_power_domains
= pipe_domains
[crtc
->pipe
];
4994 intel_display_set_init_power(dev_priv
, false);
4997 /* returns HPLL frequency in kHz */
4998 static int valleyview_get_vco(struct drm_i915_private
*dev_priv
)
5000 int hpll_freq
, vco_freq
[] = { 800, 1600, 2000, 2400 };
5002 /* Obtain SKU information */
5003 mutex_lock(&dev_priv
->dpio_lock
);
5004 hpll_freq
= vlv_cck_read(dev_priv
, CCK_FUSE_REG
) &
5005 CCK_FUSE_HPLL_FREQ_MASK
;
5006 mutex_unlock(&dev_priv
->dpio_lock
);
5008 return vco_freq
[hpll_freq
] * 1000;
5011 static void vlv_update_cdclk(struct drm_device
*dev
)
5013 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5015 dev_priv
->vlv_cdclk_freq
= dev_priv
->display
.get_display_clock_speed(dev
);
5016 DRM_DEBUG_DRIVER("Current CD clock rate: %d kHz\n",
5017 dev_priv
->vlv_cdclk_freq
);
5020 * Program the gmbus_freq based on the cdclk frequency.
5021 * BSpec erroneously claims we should aim for 4MHz, but
5022 * in fact 1MHz is the correct frequency.
5024 I915_WRITE(GMBUSFREQ_VLV
, DIV_ROUND_UP(dev_priv
->vlv_cdclk_freq
, 1000));
5027 /* Adjust CDclk dividers to allow high res or save power if possible */
5028 static void valleyview_set_cdclk(struct drm_device
*dev
, int cdclk
)
5030 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5033 WARN_ON(dev_priv
->display
.get_display_clock_speed(dev
) != dev_priv
->vlv_cdclk_freq
);
5035 if (cdclk
>= 320000) /* jump to highest voltage for 400MHz too */
5037 else if (cdclk
== 266667)
5042 mutex_lock(&dev_priv
->rps
.hw_lock
);
5043 val
= vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
);
5044 val
&= ~DSPFREQGUAR_MASK
;
5045 val
|= (cmd
<< DSPFREQGUAR_SHIFT
);
5046 vlv_punit_write(dev_priv
, PUNIT_REG_DSPFREQ
, val
);
5047 if (wait_for((vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
) &
5048 DSPFREQSTAT_MASK
) == (cmd
<< DSPFREQSTAT_SHIFT
),
5050 DRM_ERROR("timed out waiting for CDclk change\n");
5052 mutex_unlock(&dev_priv
->rps
.hw_lock
);
5054 if (cdclk
== 400000) {
5057 divider
= DIV_ROUND_CLOSEST(dev_priv
->hpll_freq
<< 1, cdclk
) - 1;
5059 mutex_lock(&dev_priv
->dpio_lock
);
5060 /* adjust cdclk divider */
5061 val
= vlv_cck_read(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
);
5062 val
&= ~DISPLAY_FREQUENCY_VALUES
;
5064 vlv_cck_write(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
, val
);
5066 if (wait_for((vlv_cck_read(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
) &
5067 DISPLAY_FREQUENCY_STATUS
) == (divider
<< DISPLAY_FREQUENCY_STATUS_SHIFT
),
5069 DRM_ERROR("timed out waiting for CDclk change\n");
5070 mutex_unlock(&dev_priv
->dpio_lock
);
5073 mutex_lock(&dev_priv
->dpio_lock
);
5074 /* adjust self-refresh exit latency value */
5075 val
= vlv_bunit_read(dev_priv
, BUNIT_REG_BISOC
);
5079 * For high bandwidth configs, we set a higher latency in the bunit
5080 * so that the core display fetch happens in time to avoid underruns.
5082 if (cdclk
== 400000)
5083 val
|= 4500 / 250; /* 4.5 usec */
5085 val
|= 3000 / 250; /* 3.0 usec */
5086 vlv_bunit_write(dev_priv
, BUNIT_REG_BISOC
, val
);
5087 mutex_unlock(&dev_priv
->dpio_lock
);
5089 vlv_update_cdclk(dev
);
5092 static void cherryview_set_cdclk(struct drm_device
*dev
, int cdclk
)
5094 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5097 WARN_ON(dev_priv
->display
.get_display_clock_speed(dev
) != dev_priv
->vlv_cdclk_freq
);
5106 MISSING_CASE(cdclk
);
5111 * Specs are full of misinformation, but testing on actual
5112 * hardware has shown that we just need to write the desired
5113 * CCK divider into the Punit register.
5115 cmd
= DIV_ROUND_CLOSEST(dev_priv
->hpll_freq
<< 1, cdclk
) - 1;
5117 mutex_lock(&dev_priv
->rps
.hw_lock
);
5118 val
= vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
);
5119 val
&= ~DSPFREQGUAR_MASK_CHV
;
5120 val
|= (cmd
<< DSPFREQGUAR_SHIFT_CHV
);
5121 vlv_punit_write(dev_priv
, PUNIT_REG_DSPFREQ
, val
);
5122 if (wait_for((vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
) &
5123 DSPFREQSTAT_MASK_CHV
) == (cmd
<< DSPFREQSTAT_SHIFT_CHV
),
5125 DRM_ERROR("timed out waiting for CDclk change\n");
5127 mutex_unlock(&dev_priv
->rps
.hw_lock
);
5129 vlv_update_cdclk(dev
);
5132 static int valleyview_calc_cdclk(struct drm_i915_private
*dev_priv
,
5135 int freq_320
= (dev_priv
->hpll_freq
<< 1) % 320000 != 0 ? 333333 : 320000;
5136 int limit
= IS_CHERRYVIEW(dev_priv
) ? 95 : 90;
5139 * Really only a few cases to deal with, as only 4 CDclks are supported:
5142 * 320/333MHz (depends on HPLL freq)
5144 * So we check to see whether we're above 90% (VLV) or 95% (CHV)
5145 * of the lower bin and adjust if needed.
5147 * We seem to get an unstable or solid color picture at 200MHz.
5148 * Not sure what's wrong. For now use 200MHz only when all pipes
5151 if (!IS_CHERRYVIEW(dev_priv
) &&
5152 max_pixclk
> freq_320
*limit
/100)
5154 else if (max_pixclk
> 266667*limit
/100)
5156 else if (max_pixclk
> 0)
5162 /* compute the max pixel clock for new configuration */
5163 static int intel_mode_max_pixclk(struct drm_i915_private
*dev_priv
)
5165 struct drm_device
*dev
= dev_priv
->dev
;
5166 struct intel_crtc
*intel_crtc
;
5169 for_each_intel_crtc(dev
, intel_crtc
) {
5170 if (intel_crtc
->new_enabled
)
5171 max_pixclk
= max(max_pixclk
,
5172 intel_crtc
->new_config
->base
.adjusted_mode
.crtc_clock
);
5178 static void valleyview_modeset_global_pipes(struct drm_device
*dev
,
5179 unsigned *prepare_pipes
)
5181 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5182 struct intel_crtc
*intel_crtc
;
5183 int max_pixclk
= intel_mode_max_pixclk(dev_priv
);
5185 if (valleyview_calc_cdclk(dev_priv
, max_pixclk
) ==
5186 dev_priv
->vlv_cdclk_freq
)
5189 /* disable/enable all currently active pipes while we change cdclk */
5190 for_each_intel_crtc(dev
, intel_crtc
)
5191 if (intel_crtc
->base
.state
->enable
)
5192 *prepare_pipes
|= (1 << intel_crtc
->pipe
);
5195 static void vlv_program_pfi_credits(struct drm_i915_private
*dev_priv
)
5197 unsigned int credits
, default_credits
;
5199 if (IS_CHERRYVIEW(dev_priv
))
5200 default_credits
= PFI_CREDIT(12);
5202 default_credits
= PFI_CREDIT(8);
5204 if (DIV_ROUND_CLOSEST(dev_priv
->vlv_cdclk_freq
, 1000) >= dev_priv
->rps
.cz_freq
) {
5205 /* CHV suggested value is 31 or 63 */
5206 if (IS_CHERRYVIEW(dev_priv
))
5207 credits
= PFI_CREDIT_31
;
5209 credits
= PFI_CREDIT(15);
5211 credits
= default_credits
;
5215 * WA - write default credits before re-programming
5216 * FIXME: should we also set the resend bit here?
5218 I915_WRITE(GCI_CONTROL
, VGA_FAST_MODE_DISABLE
|
5221 I915_WRITE(GCI_CONTROL
, VGA_FAST_MODE_DISABLE
|
5222 credits
| PFI_CREDIT_RESEND
);
5225 * FIXME is this guaranteed to clear
5226 * immediately or should we poll for it?
5228 WARN_ON(I915_READ(GCI_CONTROL
) & PFI_CREDIT_RESEND
);
5231 static void valleyview_modeset_global_resources(struct drm_atomic_state
*state
)
5233 struct drm_device
*dev
= state
->dev
;
5234 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5235 int max_pixclk
= intel_mode_max_pixclk(dev_priv
);
5236 int req_cdclk
= valleyview_calc_cdclk(dev_priv
, max_pixclk
);
5238 if (req_cdclk
!= dev_priv
->vlv_cdclk_freq
) {
5240 * FIXME: We can end up here with all power domains off, yet
5241 * with a CDCLK frequency other than the minimum. To account
5242 * for this take the PIPE-A power domain, which covers the HW
5243 * blocks needed for the following programming. This can be
5244 * removed once it's guaranteed that we get here either with
5245 * the minimum CDCLK set, or the required power domains
5248 intel_display_power_get(dev_priv
, POWER_DOMAIN_PIPE_A
);
5250 if (IS_CHERRYVIEW(dev
))
5251 cherryview_set_cdclk(dev
, req_cdclk
);
5253 valleyview_set_cdclk(dev
, req_cdclk
);
5255 vlv_program_pfi_credits(dev_priv
);
5257 intel_display_power_put(dev_priv
, POWER_DOMAIN_PIPE_A
);
5261 static void valleyview_crtc_enable(struct drm_crtc
*crtc
)
5263 struct drm_device
*dev
= crtc
->dev
;
5264 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5265 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5266 struct intel_encoder
*encoder
;
5267 int pipe
= intel_crtc
->pipe
;
5270 WARN_ON(!crtc
->state
->enable
);
5272 if (intel_crtc
->active
)
5275 is_dsi
= intel_pipe_has_type(intel_crtc
, INTEL_OUTPUT_DSI
);
5278 if (IS_CHERRYVIEW(dev
))
5279 chv_prepare_pll(intel_crtc
, intel_crtc
->config
);
5281 vlv_prepare_pll(intel_crtc
, intel_crtc
->config
);
5284 if (intel_crtc
->config
->has_dp_encoder
)
5285 intel_dp_set_m_n(intel_crtc
, M1_N1
);
5287 intel_set_pipe_timings(intel_crtc
);
5289 if (IS_CHERRYVIEW(dev
) && pipe
== PIPE_B
) {
5290 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5292 I915_WRITE(CHV_BLEND(pipe
), CHV_BLEND_LEGACY
);
5293 I915_WRITE(CHV_CANVAS(pipe
), 0);
5296 i9xx_set_pipeconf(intel_crtc
);
5298 intel_crtc
->active
= true;
5300 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5302 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5303 if (encoder
->pre_pll_enable
)
5304 encoder
->pre_pll_enable(encoder
);
5307 if (IS_CHERRYVIEW(dev
))
5308 chv_enable_pll(intel_crtc
, intel_crtc
->config
);
5310 vlv_enable_pll(intel_crtc
, intel_crtc
->config
);
5313 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5314 if (encoder
->pre_enable
)
5315 encoder
->pre_enable(encoder
);
5317 i9xx_pfit_enable(intel_crtc
);
5319 intel_crtc_load_lut(crtc
);
5321 intel_update_watermarks(crtc
);
5322 intel_enable_pipe(intel_crtc
);
5324 assert_vblank_disabled(crtc
);
5325 drm_crtc_vblank_on(crtc
);
5327 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5328 encoder
->enable(encoder
);
5330 intel_crtc_enable_planes(crtc
);
5332 /* Underruns don't raise interrupts, so check manually. */
5333 i9xx_check_fifo_underruns(dev_priv
);
5336 static void i9xx_set_pll_dividers(struct intel_crtc
*crtc
)
5338 struct drm_device
*dev
= crtc
->base
.dev
;
5339 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5341 I915_WRITE(FP0(crtc
->pipe
), crtc
->config
->dpll_hw_state
.fp0
);
5342 I915_WRITE(FP1(crtc
->pipe
), crtc
->config
->dpll_hw_state
.fp1
);
5345 static void i9xx_crtc_enable(struct drm_crtc
*crtc
)
5347 struct drm_device
*dev
= crtc
->dev
;
5348 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5349 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5350 struct intel_encoder
*encoder
;
5351 int pipe
= intel_crtc
->pipe
;
5353 WARN_ON(!crtc
->state
->enable
);
5355 if (intel_crtc
->active
)
5358 i9xx_set_pll_dividers(intel_crtc
);
5360 if (intel_crtc
->config
->has_dp_encoder
)
5361 intel_dp_set_m_n(intel_crtc
, M1_N1
);
5363 intel_set_pipe_timings(intel_crtc
);
5365 i9xx_set_pipeconf(intel_crtc
);
5367 intel_crtc
->active
= true;
5370 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5372 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5373 if (encoder
->pre_enable
)
5374 encoder
->pre_enable(encoder
);
5376 i9xx_enable_pll(intel_crtc
);
5378 i9xx_pfit_enable(intel_crtc
);
5380 intel_crtc_load_lut(crtc
);
5382 intel_update_watermarks(crtc
);
5383 intel_enable_pipe(intel_crtc
);
5385 assert_vblank_disabled(crtc
);
5386 drm_crtc_vblank_on(crtc
);
5388 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5389 encoder
->enable(encoder
);
5391 intel_crtc_enable_planes(crtc
);
5394 * Gen2 reports pipe underruns whenever all planes are disabled.
5395 * So don't enable underrun reporting before at least some planes
5397 * FIXME: Need to fix the logic to work when we turn off all planes
5398 * but leave the pipe running.
5401 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5403 /* Underruns don't raise interrupts, so check manually. */
5404 i9xx_check_fifo_underruns(dev_priv
);
5407 static void i9xx_pfit_disable(struct intel_crtc
*crtc
)
5409 struct drm_device
*dev
= crtc
->base
.dev
;
5410 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5412 if (!crtc
->config
->gmch_pfit
.control
)
5415 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
5417 DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n",
5418 I915_READ(PFIT_CONTROL
));
5419 I915_WRITE(PFIT_CONTROL
, 0);
5422 static void i9xx_crtc_disable(struct drm_crtc
*crtc
)
5424 struct drm_device
*dev
= crtc
->dev
;
5425 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5426 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5427 struct intel_encoder
*encoder
;
5428 int pipe
= intel_crtc
->pipe
;
5430 if (!intel_crtc
->active
)
5434 * Gen2 reports pipe underruns whenever all planes are disabled.
5435 * So diasble underrun reporting before all the planes get disabled.
5436 * FIXME: Need to fix the logic to work when we turn off all planes
5437 * but leave the pipe running.
5440 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, false);
5443 * Vblank time updates from the shadow to live plane control register
5444 * are blocked if the memory self-refresh mode is active at that
5445 * moment. So to make sure the plane gets truly disabled, disable
5446 * first the self-refresh mode. The self-refresh enable bit in turn
5447 * will be checked/applied by the HW only at the next frame start
5448 * event which is after the vblank start event, so we need to have a
5449 * wait-for-vblank between disabling the plane and the pipe.
5451 intel_set_memory_cxsr(dev_priv
, false);
5452 intel_crtc_disable_planes(crtc
);
5455 * On gen2 planes are double buffered but the pipe isn't, so we must
5456 * wait for planes to fully turn off before disabling the pipe.
5457 * We also need to wait on all gmch platforms because of the
5458 * self-refresh mode constraint explained above.
5460 intel_wait_for_vblank(dev
, pipe
);
5462 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5463 encoder
->disable(encoder
);
5465 drm_crtc_vblank_off(crtc
);
5466 assert_vblank_disabled(crtc
);
5468 intel_disable_pipe(intel_crtc
);
5470 i9xx_pfit_disable(intel_crtc
);
5472 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5473 if (encoder
->post_disable
)
5474 encoder
->post_disable(encoder
);
5476 if (!intel_pipe_has_type(intel_crtc
, INTEL_OUTPUT_DSI
)) {
5477 if (IS_CHERRYVIEW(dev
))
5478 chv_disable_pll(dev_priv
, pipe
);
5479 else if (IS_VALLEYVIEW(dev
))
5480 vlv_disable_pll(dev_priv
, pipe
);
5482 i9xx_disable_pll(intel_crtc
);
5486 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, false);
5488 intel_crtc
->active
= false;
5489 intel_update_watermarks(crtc
);
5491 mutex_lock(&dev
->struct_mutex
);
5492 intel_fbc_update(dev
);
5493 mutex_unlock(&dev
->struct_mutex
);
5496 static void i9xx_crtc_off(struct drm_crtc
*crtc
)
5500 /* Master function to enable/disable CRTC and corresponding power wells */
5501 void intel_crtc_control(struct drm_crtc
*crtc
, bool enable
)
5503 struct drm_device
*dev
= crtc
->dev
;
5504 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5505 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5506 enum intel_display_power_domain domain
;
5507 unsigned long domains
;
5510 if (!intel_crtc
->active
) {
5511 domains
= get_crtc_power_domains(crtc
);
5512 for_each_power_domain(domain
, domains
)
5513 intel_display_power_get(dev_priv
, domain
);
5514 intel_crtc
->enabled_power_domains
= domains
;
5516 dev_priv
->display
.crtc_enable(crtc
);
5519 if (intel_crtc
->active
) {
5520 dev_priv
->display
.crtc_disable(crtc
);
5522 domains
= intel_crtc
->enabled_power_domains
;
5523 for_each_power_domain(domain
, domains
)
5524 intel_display_power_put(dev_priv
, domain
);
5525 intel_crtc
->enabled_power_domains
= 0;
5531 * Sets the power management mode of the pipe and plane.
5533 void intel_crtc_update_dpms(struct drm_crtc
*crtc
)
5535 struct drm_device
*dev
= crtc
->dev
;
5536 struct intel_encoder
*intel_encoder
;
5537 bool enable
= false;
5539 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
)
5540 enable
|= intel_encoder
->connectors_active
;
5542 intel_crtc_control(crtc
, enable
);
5545 static void intel_crtc_disable(struct drm_crtc
*crtc
)
5547 struct drm_device
*dev
= crtc
->dev
;
5548 struct drm_connector
*connector
;
5549 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5551 /* crtc should still be enabled when we disable it. */
5552 WARN_ON(!crtc
->state
->enable
);
5554 dev_priv
->display
.crtc_disable(crtc
);
5555 dev_priv
->display
.off(crtc
);
5557 crtc
->primary
->funcs
->disable_plane(crtc
->primary
);
5559 /* Update computed state. */
5560 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
5561 if (!connector
->encoder
|| !connector
->encoder
->crtc
)
5564 if (connector
->encoder
->crtc
!= crtc
)
5567 connector
->dpms
= DRM_MODE_DPMS_OFF
;
5568 to_intel_encoder(connector
->encoder
)->connectors_active
= false;
5572 void intel_encoder_destroy(struct drm_encoder
*encoder
)
5574 struct intel_encoder
*intel_encoder
= to_intel_encoder(encoder
);
5576 drm_encoder_cleanup(encoder
);
5577 kfree(intel_encoder
);
5580 /* Simple dpms helper for encoders with just one connector, no cloning and only
5581 * one kind of off state. It clamps all !ON modes to fully OFF and changes the
5582 * state of the entire output pipe. */
5583 static void intel_encoder_dpms(struct intel_encoder
*encoder
, int mode
)
5585 if (mode
== DRM_MODE_DPMS_ON
) {
5586 encoder
->connectors_active
= true;
5588 intel_crtc_update_dpms(encoder
->base
.crtc
);
5590 encoder
->connectors_active
= false;
5592 intel_crtc_update_dpms(encoder
->base
.crtc
);
5596 /* Cross check the actual hw state with our own modeset state tracking (and it's
5597 * internal consistency). */
5598 static void intel_connector_check_state(struct intel_connector
*connector
)
5600 if (connector
->get_hw_state(connector
)) {
5601 struct intel_encoder
*encoder
= connector
->encoder
;
5602 struct drm_crtc
*crtc
;
5603 bool encoder_enabled
;
5606 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
5607 connector
->base
.base
.id
,
5608 connector
->base
.name
);
5610 /* there is no real hw state for MST connectors */
5611 if (connector
->mst_port
)
5614 I915_STATE_WARN(connector
->base
.dpms
== DRM_MODE_DPMS_OFF
,
5615 "wrong connector dpms state\n");
5616 I915_STATE_WARN(connector
->base
.encoder
!= &encoder
->base
,
5617 "active connector not linked to encoder\n");
5620 I915_STATE_WARN(!encoder
->connectors_active
,
5621 "encoder->connectors_active not set\n");
5623 encoder_enabled
= encoder
->get_hw_state(encoder
, &pipe
);
5624 I915_STATE_WARN(!encoder_enabled
, "encoder not enabled\n");
5625 if (I915_STATE_WARN_ON(!encoder
->base
.crtc
))
5628 crtc
= encoder
->base
.crtc
;
5630 I915_STATE_WARN(!crtc
->state
->enable
,
5631 "crtc not enabled\n");
5632 I915_STATE_WARN(!to_intel_crtc(crtc
)->active
, "crtc not active\n");
5633 I915_STATE_WARN(pipe
!= to_intel_crtc(crtc
)->pipe
,
5634 "encoder active on the wrong pipe\n");
5639 /* Even simpler default implementation, if there's really no special case to
5641 void intel_connector_dpms(struct drm_connector
*connector
, int mode
)
5643 /* All the simple cases only support two dpms states. */
5644 if (mode
!= DRM_MODE_DPMS_ON
)
5645 mode
= DRM_MODE_DPMS_OFF
;
5647 if (mode
== connector
->dpms
)
5650 connector
->dpms
= mode
;
5652 /* Only need to change hw state when actually enabled */
5653 if (connector
->encoder
)
5654 intel_encoder_dpms(to_intel_encoder(connector
->encoder
), mode
);
5656 intel_modeset_check_state(connector
->dev
);
5659 /* Simple connector->get_hw_state implementation for encoders that support only
5660 * one connector and no cloning and hence the encoder state determines the state
5661 * of the connector. */
5662 bool intel_connector_get_hw_state(struct intel_connector
*connector
)
5665 struct intel_encoder
*encoder
= connector
->encoder
;
5667 return encoder
->get_hw_state(encoder
, &pipe
);
5670 static int pipe_required_fdi_lanes(struct drm_device
*dev
, enum pipe pipe
)
5672 struct intel_crtc
*crtc
=
5673 to_intel_crtc(intel_get_crtc_for_pipe(dev
, pipe
));
5675 if (crtc
->base
.state
->enable
&&
5676 crtc
->config
->has_pch_encoder
)
5677 return crtc
->config
->fdi_lanes
;
5682 static bool ironlake_check_fdi_lanes(struct drm_device
*dev
, enum pipe pipe
,
5683 struct intel_crtc_state
*pipe_config
)
5685 DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n",
5686 pipe_name(pipe
), pipe_config
->fdi_lanes
);
5687 if (pipe_config
->fdi_lanes
> 4) {
5688 DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n",
5689 pipe_name(pipe
), pipe_config
->fdi_lanes
);
5693 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
5694 if (pipe_config
->fdi_lanes
> 2) {
5695 DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n",
5696 pipe_config
->fdi_lanes
);
5703 if (INTEL_INFO(dev
)->num_pipes
== 2)
5706 /* Ivybridge 3 pipe is really complicated */
5711 if (pipe_config
->fdi_lanes
> 2 &&
5712 pipe_required_fdi_lanes(dev
, PIPE_C
) > 0) {
5713 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
5714 pipe_name(pipe
), pipe_config
->fdi_lanes
);
5719 if (pipe_config
->fdi_lanes
> 2) {
5720 DRM_DEBUG_KMS("only 2 lanes on pipe %c: required %i lanes\n",
5721 pipe_name(pipe
), pipe_config
->fdi_lanes
);
5724 if (pipe_required_fdi_lanes(dev
, PIPE_B
) > 2) {
5725 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
5735 static int ironlake_fdi_compute_config(struct intel_crtc
*intel_crtc
,
5736 struct intel_crtc_state
*pipe_config
)
5738 struct drm_device
*dev
= intel_crtc
->base
.dev
;
5739 struct drm_display_mode
*adjusted_mode
= &pipe_config
->base
.adjusted_mode
;
5740 int lane
, link_bw
, fdi_dotclock
;
5741 bool setup_ok
, needs_recompute
= false;
5744 /* FDI is a binary signal running at ~2.7GHz, encoding
5745 * each output octet as 10 bits. The actual frequency
5746 * is stored as a divider into a 100MHz clock, and the
5747 * mode pixel clock is stored in units of 1KHz.
5748 * Hence the bw of each lane in terms of the mode signal
5751 link_bw
= intel_fdi_link_freq(dev
) * MHz(100)/KHz(1)/10;
5753 fdi_dotclock
= adjusted_mode
->crtc_clock
;
5755 lane
= ironlake_get_lanes_required(fdi_dotclock
, link_bw
,
5756 pipe_config
->pipe_bpp
);
5758 pipe_config
->fdi_lanes
= lane
;
5760 intel_link_compute_m_n(pipe_config
->pipe_bpp
, lane
, fdi_dotclock
,
5761 link_bw
, &pipe_config
->fdi_m_n
);
5763 setup_ok
= ironlake_check_fdi_lanes(intel_crtc
->base
.dev
,
5764 intel_crtc
->pipe
, pipe_config
);
5765 if (!setup_ok
&& pipe_config
->pipe_bpp
> 6*3) {
5766 pipe_config
->pipe_bpp
-= 2*3;
5767 DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n",
5768 pipe_config
->pipe_bpp
);
5769 needs_recompute
= true;
5770 pipe_config
->bw_constrained
= true;
5775 if (needs_recompute
)
5778 return setup_ok
? 0 : -EINVAL
;
5781 static void hsw_compute_ips_config(struct intel_crtc
*crtc
,
5782 struct intel_crtc_state
*pipe_config
)
5784 pipe_config
->ips_enabled
= i915
.enable_ips
&&
5785 hsw_crtc_supports_ips(crtc
) &&
5786 pipe_config
->pipe_bpp
<= 24;
5789 static int intel_crtc_compute_config(struct intel_crtc
*crtc
,
5790 struct intel_crtc_state
*pipe_config
)
5792 struct drm_device
*dev
= crtc
->base
.dev
;
5793 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5794 struct drm_display_mode
*adjusted_mode
= &pipe_config
->base
.adjusted_mode
;
5796 /* FIXME should check pixel clock limits on all platforms */
5797 if (INTEL_INFO(dev
)->gen
< 4) {
5799 dev_priv
->display
.get_display_clock_speed(dev
);
5802 * Enable pixel doubling when the dot clock
5803 * is > 90% of the (display) core speed.
5805 * GDG double wide on either pipe,
5806 * otherwise pipe A only.
5808 if ((crtc
->pipe
== PIPE_A
|| IS_I915G(dev
)) &&
5809 adjusted_mode
->crtc_clock
> clock_limit
* 9 / 10) {
5811 pipe_config
->double_wide
= true;
5814 if (adjusted_mode
->crtc_clock
> clock_limit
* 9 / 10)
5819 * Pipe horizontal size must be even in:
5821 * - LVDS dual channel mode
5822 * - Double wide pipe
5824 if ((intel_pipe_will_have_type(pipe_config
, INTEL_OUTPUT_LVDS
) &&
5825 intel_is_dual_link_lvds(dev
)) || pipe_config
->double_wide
)
5826 pipe_config
->pipe_src_w
&= ~1;
5828 /* Cantiga+ cannot handle modes with a hsync front porch of 0.
5829 * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw.
5831 if ((INTEL_INFO(dev
)->gen
> 4 || IS_G4X(dev
)) &&
5832 adjusted_mode
->hsync_start
== adjusted_mode
->hdisplay
)
5835 if ((IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) && pipe_config
->pipe_bpp
> 10*3) {
5836 pipe_config
->pipe_bpp
= 10*3; /* 12bpc is gen5+ */
5837 } else if (INTEL_INFO(dev
)->gen
<= 4 && pipe_config
->pipe_bpp
> 8*3) {
5838 /* only a 8bpc pipe, with 6bpc dither through the panel fitter
5840 pipe_config
->pipe_bpp
= 8*3;
5844 hsw_compute_ips_config(crtc
, pipe_config
);
5846 if (pipe_config
->has_pch_encoder
)
5847 return ironlake_fdi_compute_config(crtc
, pipe_config
);
5852 static int valleyview_get_display_clock_speed(struct drm_device
*dev
)
5854 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5858 if (dev_priv
->hpll_freq
== 0)
5859 dev_priv
->hpll_freq
= valleyview_get_vco(dev_priv
);
5861 mutex_lock(&dev_priv
->dpio_lock
);
5862 val
= vlv_cck_read(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
);
5863 mutex_unlock(&dev_priv
->dpio_lock
);
5865 divider
= val
& DISPLAY_FREQUENCY_VALUES
;
5867 WARN((val
& DISPLAY_FREQUENCY_STATUS
) !=
5868 (divider
<< DISPLAY_FREQUENCY_STATUS_SHIFT
),
5869 "cdclk change in progress\n");
5871 return DIV_ROUND_CLOSEST(dev_priv
->hpll_freq
<< 1, divider
+ 1);
5874 static int i945_get_display_clock_speed(struct drm_device
*dev
)
5879 static int i915_get_display_clock_speed(struct drm_device
*dev
)
5884 static int i9xx_misc_get_display_clock_speed(struct drm_device
*dev
)
5889 static int pnv_get_display_clock_speed(struct drm_device
*dev
)
5893 pci_read_config_word(dev
->pdev
, GCFGC
, &gcfgc
);
5895 switch (gcfgc
& GC_DISPLAY_CLOCK_MASK
) {
5896 case GC_DISPLAY_CLOCK_267_MHZ_PNV
:
5898 case GC_DISPLAY_CLOCK_333_MHZ_PNV
:
5900 case GC_DISPLAY_CLOCK_444_MHZ_PNV
:
5902 case GC_DISPLAY_CLOCK_200_MHZ_PNV
:
5905 DRM_ERROR("Unknown pnv display core clock 0x%04x\n", gcfgc
);
5906 case GC_DISPLAY_CLOCK_133_MHZ_PNV
:
5908 case GC_DISPLAY_CLOCK_167_MHZ_PNV
:
5913 static int i915gm_get_display_clock_speed(struct drm_device
*dev
)
5917 pci_read_config_word(dev
->pdev
, GCFGC
, &gcfgc
);
5919 if (gcfgc
& GC_LOW_FREQUENCY_ENABLE
)
5922 switch (gcfgc
& GC_DISPLAY_CLOCK_MASK
) {
5923 case GC_DISPLAY_CLOCK_333_MHZ
:
5926 case GC_DISPLAY_CLOCK_190_200_MHZ
:
5932 static int i865_get_display_clock_speed(struct drm_device
*dev
)
5937 static int i855_get_display_clock_speed(struct drm_device
*dev
)
5940 /* Assume that the hardware is in the high speed state. This
5941 * should be the default.
5943 switch (hpllcc
& GC_CLOCK_CONTROL_MASK
) {
5944 case GC_CLOCK_133_200
:
5945 case GC_CLOCK_100_200
:
5947 case GC_CLOCK_166_250
:
5949 case GC_CLOCK_100_133
:
5953 /* Shouldn't happen */
5957 static int i830_get_display_clock_speed(struct drm_device
*dev
)
5963 intel_reduce_m_n_ratio(uint32_t *num
, uint32_t *den
)
5965 while (*num
> DATA_LINK_M_N_MASK
||
5966 *den
> DATA_LINK_M_N_MASK
) {
5972 static void compute_m_n(unsigned int m
, unsigned int n
,
5973 uint32_t *ret_m
, uint32_t *ret_n
)
5975 *ret_n
= min_t(unsigned int, roundup_pow_of_two(n
), DATA_LINK_N_MAX
);
5976 *ret_m
= div_u64((uint64_t) m
* *ret_n
, n
);
5977 intel_reduce_m_n_ratio(ret_m
, ret_n
);
5981 intel_link_compute_m_n(int bits_per_pixel
, int nlanes
,
5982 int pixel_clock
, int link_clock
,
5983 struct intel_link_m_n
*m_n
)
5987 compute_m_n(bits_per_pixel
* pixel_clock
,
5988 link_clock
* nlanes
* 8,
5989 &m_n
->gmch_m
, &m_n
->gmch_n
);
5991 compute_m_n(pixel_clock
, link_clock
,
5992 &m_n
->link_m
, &m_n
->link_n
);
5995 static inline bool intel_panel_use_ssc(struct drm_i915_private
*dev_priv
)
5997 if (i915
.panel_use_ssc
>= 0)
5998 return i915
.panel_use_ssc
!= 0;
5999 return dev_priv
->vbt
.lvds_use_ssc
6000 && !(dev_priv
->quirks
& QUIRK_LVDS_SSC_DISABLE
);
6003 static int i9xx_get_refclk(const struct intel_crtc_state
*crtc_state
,
6006 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
6007 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6010 WARN_ON(!crtc_state
->base
.state
);
6012 if (IS_VALLEYVIEW(dev
)) {
6014 } else if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
6015 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2) {
6016 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
6017 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk
);
6018 } else if (!IS_GEN2(dev
)) {
6027 static uint32_t pnv_dpll_compute_fp(struct dpll
*dpll
)
6029 return (1 << dpll
->n
) << 16 | dpll
->m2
;
6032 static uint32_t i9xx_dpll_compute_fp(struct dpll
*dpll
)
6034 return dpll
->n
<< 16 | dpll
->m1
<< 8 | dpll
->m2
;
6037 static void i9xx_update_pll_dividers(struct intel_crtc
*crtc
,
6038 struct intel_crtc_state
*crtc_state
,
6039 intel_clock_t
*reduced_clock
)
6041 struct drm_device
*dev
= crtc
->base
.dev
;
6044 if (IS_PINEVIEW(dev
)) {
6045 fp
= pnv_dpll_compute_fp(&crtc_state
->dpll
);
6047 fp2
= pnv_dpll_compute_fp(reduced_clock
);
6049 fp
= i9xx_dpll_compute_fp(&crtc_state
->dpll
);
6051 fp2
= i9xx_dpll_compute_fp(reduced_clock
);
6054 crtc_state
->dpll_hw_state
.fp0
= fp
;
6056 crtc
->lowfreq_avail
= false;
6057 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
6059 crtc_state
->dpll_hw_state
.fp1
= fp2
;
6060 crtc
->lowfreq_avail
= true;
6062 crtc_state
->dpll_hw_state
.fp1
= fp
;
6066 static void vlv_pllb_recal_opamp(struct drm_i915_private
*dev_priv
, enum pipe
6072 * PLLB opamp always calibrates to max value of 0x3f, force enable it
6073 * and set it to a reasonable value instead.
6075 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW9(1));
6076 reg_val
&= 0xffffff00;
6077 reg_val
|= 0x00000030;
6078 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9(1), reg_val
);
6080 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_REF_DW13
);
6081 reg_val
&= 0x8cffffff;
6082 reg_val
= 0x8c000000;
6083 vlv_dpio_write(dev_priv
, pipe
, VLV_REF_DW13
, reg_val
);
6085 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW9(1));
6086 reg_val
&= 0xffffff00;
6087 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9(1), reg_val
);
6089 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_REF_DW13
);
6090 reg_val
&= 0x00ffffff;
6091 reg_val
|= 0xb0000000;
6092 vlv_dpio_write(dev_priv
, pipe
, VLV_REF_DW13
, reg_val
);
6095 static void intel_pch_transcoder_set_m_n(struct intel_crtc
*crtc
,
6096 struct intel_link_m_n
*m_n
)
6098 struct drm_device
*dev
= crtc
->base
.dev
;
6099 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6100 int pipe
= crtc
->pipe
;
6102 I915_WRITE(PCH_TRANS_DATA_M1(pipe
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
6103 I915_WRITE(PCH_TRANS_DATA_N1(pipe
), m_n
->gmch_n
);
6104 I915_WRITE(PCH_TRANS_LINK_M1(pipe
), m_n
->link_m
);
6105 I915_WRITE(PCH_TRANS_LINK_N1(pipe
), m_n
->link_n
);
6108 static void intel_cpu_transcoder_set_m_n(struct intel_crtc
*crtc
,
6109 struct intel_link_m_n
*m_n
,
6110 struct intel_link_m_n
*m2_n2
)
6112 struct drm_device
*dev
= crtc
->base
.dev
;
6113 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6114 int pipe
= crtc
->pipe
;
6115 enum transcoder transcoder
= crtc
->config
->cpu_transcoder
;
6117 if (INTEL_INFO(dev
)->gen
>= 5) {
6118 I915_WRITE(PIPE_DATA_M1(transcoder
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
6119 I915_WRITE(PIPE_DATA_N1(transcoder
), m_n
->gmch_n
);
6120 I915_WRITE(PIPE_LINK_M1(transcoder
), m_n
->link_m
);
6121 I915_WRITE(PIPE_LINK_N1(transcoder
), m_n
->link_n
);
6122 /* M2_N2 registers to be set only for gen < 8 (M2_N2 available
6123 * for gen < 8) and if DRRS is supported (to make sure the
6124 * registers are not unnecessarily accessed).
6126 if (m2_n2
&& (IS_CHERRYVIEW(dev
) || INTEL_INFO(dev
)->gen
< 8) &&
6127 crtc
->config
->has_drrs
) {
6128 I915_WRITE(PIPE_DATA_M2(transcoder
),
6129 TU_SIZE(m2_n2
->tu
) | m2_n2
->gmch_m
);
6130 I915_WRITE(PIPE_DATA_N2(transcoder
), m2_n2
->gmch_n
);
6131 I915_WRITE(PIPE_LINK_M2(transcoder
), m2_n2
->link_m
);
6132 I915_WRITE(PIPE_LINK_N2(transcoder
), m2_n2
->link_n
);
6135 I915_WRITE(PIPE_DATA_M_G4X(pipe
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
6136 I915_WRITE(PIPE_DATA_N_G4X(pipe
), m_n
->gmch_n
);
6137 I915_WRITE(PIPE_LINK_M_G4X(pipe
), m_n
->link_m
);
6138 I915_WRITE(PIPE_LINK_N_G4X(pipe
), m_n
->link_n
);
6142 void intel_dp_set_m_n(struct intel_crtc
*crtc
, enum link_m_n_set m_n
)
6144 struct intel_link_m_n
*dp_m_n
, *dp_m2_n2
= NULL
;
6147 dp_m_n
= &crtc
->config
->dp_m_n
;
6148 dp_m2_n2
= &crtc
->config
->dp_m2_n2
;
6149 } else if (m_n
== M2_N2
) {
6152 * M2_N2 registers are not supported. Hence m2_n2 divider value
6153 * needs to be programmed into M1_N1.
6155 dp_m_n
= &crtc
->config
->dp_m2_n2
;
6157 DRM_ERROR("Unsupported divider value\n");
6161 if (crtc
->config
->has_pch_encoder
)
6162 intel_pch_transcoder_set_m_n(crtc
, &crtc
->config
->dp_m_n
);
6164 intel_cpu_transcoder_set_m_n(crtc
, dp_m_n
, dp_m2_n2
);
6167 static void vlv_update_pll(struct intel_crtc
*crtc
,
6168 struct intel_crtc_state
*pipe_config
)
6173 * Enable DPIO clock input. We should never disable the reference
6174 * clock for pipe B, since VGA hotplug / manual detection depends
6177 dpll
= DPLL_EXT_BUFFER_ENABLE_VLV
| DPLL_REFA_CLK_ENABLE_VLV
|
6178 DPLL_VGA_MODE_DIS
| DPLL_INTEGRATED_CLOCK_VLV
;
6179 /* We should never disable this, set it here for state tracking */
6180 if (crtc
->pipe
== PIPE_B
)
6181 dpll
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
6182 dpll
|= DPLL_VCO_ENABLE
;
6183 pipe_config
->dpll_hw_state
.dpll
= dpll
;
6185 dpll_md
= (pipe_config
->pixel_multiplier
- 1)
6186 << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
6187 pipe_config
->dpll_hw_state
.dpll_md
= dpll_md
;
6190 static void vlv_prepare_pll(struct intel_crtc
*crtc
,
6191 const struct intel_crtc_state
*pipe_config
)
6193 struct drm_device
*dev
= crtc
->base
.dev
;
6194 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6195 int pipe
= crtc
->pipe
;
6197 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
;
6198 u32 coreclk
, reg_val
;
6200 mutex_lock(&dev_priv
->dpio_lock
);
6202 bestn
= pipe_config
->dpll
.n
;
6203 bestm1
= pipe_config
->dpll
.m1
;
6204 bestm2
= pipe_config
->dpll
.m2
;
6205 bestp1
= pipe_config
->dpll
.p1
;
6206 bestp2
= pipe_config
->dpll
.p2
;
6208 /* See eDP HDMI DPIO driver vbios notes doc */
6210 /* PLL B needs special handling */
6212 vlv_pllb_recal_opamp(dev_priv
, pipe
);
6214 /* Set up Tx target for periodic Rcomp update */
6215 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9_BCAST
, 0x0100000f);
6217 /* Disable target IRef on PLL */
6218 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW8(pipe
));
6219 reg_val
&= 0x00ffffff;
6220 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW8(pipe
), reg_val
);
6222 /* Disable fast lock */
6223 vlv_dpio_write(dev_priv
, pipe
, VLV_CMN_DW0
, 0x610);
6225 /* Set idtafcrecal before PLL is enabled */
6226 mdiv
= ((bestm1
<< DPIO_M1DIV_SHIFT
) | (bestm2
& DPIO_M2DIV_MASK
));
6227 mdiv
|= ((bestp1
<< DPIO_P1_SHIFT
) | (bestp2
<< DPIO_P2_SHIFT
));
6228 mdiv
|= ((bestn
<< DPIO_N_SHIFT
));
6229 mdiv
|= (1 << DPIO_K_SHIFT
);
6232 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
6233 * but we don't support that).
6234 * Note: don't use the DAC post divider as it seems unstable.
6236 mdiv
|= (DPIO_POST_DIV_HDMIDP
<< DPIO_POST_DIV_SHIFT
);
6237 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW3(pipe
), mdiv
);
6239 mdiv
|= DPIO_ENABLE_CALIBRATION
;
6240 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW3(pipe
), mdiv
);
6242 /* Set HBR and RBR LPF coefficients */
6243 if (pipe_config
->port_clock
== 162000 ||
6244 intel_pipe_has_type(crtc
, INTEL_OUTPUT_ANALOG
) ||
6245 intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
))
6246 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW10(pipe
),
6249 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW10(pipe
),
6252 if (pipe_config
->has_dp_encoder
) {
6253 /* Use SSC source */
6255 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
6258 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
6260 } else { /* HDMI or VGA */
6261 /* Use bend source */
6263 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
6266 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
6270 coreclk
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW7(pipe
));
6271 coreclk
= (coreclk
& 0x0000ff00) | 0x01c00000;
6272 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
) ||
6273 intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
))
6274 coreclk
|= 0x01000000;
6275 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW7(pipe
), coreclk
);
6277 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW11(pipe
), 0x87871000);
6278 mutex_unlock(&dev_priv
->dpio_lock
);
6281 static void chv_update_pll(struct intel_crtc
*crtc
,
6282 struct intel_crtc_state
*pipe_config
)
6284 pipe_config
->dpll_hw_state
.dpll
= DPLL_SSC_REF_CLOCK_CHV
|
6285 DPLL_REFA_CLK_ENABLE_VLV
| DPLL_VGA_MODE_DIS
|
6287 if (crtc
->pipe
!= PIPE_A
)
6288 pipe_config
->dpll_hw_state
.dpll
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
6290 pipe_config
->dpll_hw_state
.dpll_md
=
6291 (pipe_config
->pixel_multiplier
- 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
6294 static void chv_prepare_pll(struct intel_crtc
*crtc
,
6295 const struct intel_crtc_state
*pipe_config
)
6297 struct drm_device
*dev
= crtc
->base
.dev
;
6298 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6299 int pipe
= crtc
->pipe
;
6300 int dpll_reg
= DPLL(crtc
->pipe
);
6301 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
6302 u32 loopfilter
, tribuf_calcntr
;
6303 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
, bestm2_frac
;
6307 bestn
= pipe_config
->dpll
.n
;
6308 bestm2_frac
= pipe_config
->dpll
.m2
& 0x3fffff;
6309 bestm1
= pipe_config
->dpll
.m1
;
6310 bestm2
= pipe_config
->dpll
.m2
>> 22;
6311 bestp1
= pipe_config
->dpll
.p1
;
6312 bestp2
= pipe_config
->dpll
.p2
;
6313 vco
= pipe_config
->dpll
.vco
;
6318 * Enable Refclk and SSC
6320 I915_WRITE(dpll_reg
,
6321 pipe_config
->dpll_hw_state
.dpll
& ~DPLL_VCO_ENABLE
);
6323 mutex_lock(&dev_priv
->dpio_lock
);
6325 /* p1 and p2 divider */
6326 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW13(port
),
6327 5 << DPIO_CHV_S1_DIV_SHIFT
|
6328 bestp1
<< DPIO_CHV_P1_DIV_SHIFT
|
6329 bestp2
<< DPIO_CHV_P2_DIV_SHIFT
|
6330 1 << DPIO_CHV_K_DIV_SHIFT
);
6332 /* Feedback post-divider - m2 */
6333 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW0(port
), bestm2
);
6335 /* Feedback refclk divider - n and m1 */
6336 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW1(port
),
6337 DPIO_CHV_M1_DIV_BY_2
|
6338 1 << DPIO_CHV_N_DIV_SHIFT
);
6340 /* M2 fraction division */
6342 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW2(port
), bestm2_frac
);
6344 /* M2 fraction division enable */
6345 dpio_val
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW3(port
));
6346 dpio_val
&= ~(DPIO_CHV_FEEDFWD_GAIN_MASK
| DPIO_CHV_FRAC_DIV_EN
);
6347 dpio_val
|= (2 << DPIO_CHV_FEEDFWD_GAIN_SHIFT
);
6349 dpio_val
|= DPIO_CHV_FRAC_DIV_EN
;
6350 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW3(port
), dpio_val
);
6352 /* Program digital lock detect threshold */
6353 dpio_val
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW9(port
));
6354 dpio_val
&= ~(DPIO_CHV_INT_LOCK_THRESHOLD_MASK
|
6355 DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE
);
6356 dpio_val
|= (0x5 << DPIO_CHV_INT_LOCK_THRESHOLD_SHIFT
);
6358 dpio_val
|= DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE
;
6359 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW9(port
), dpio_val
);
6362 if (vco
== 5400000) {
6363 loopfilter
|= (0x3 << DPIO_CHV_PROP_COEFF_SHIFT
);
6364 loopfilter
|= (0x8 << DPIO_CHV_INT_COEFF_SHIFT
);
6365 loopfilter
|= (0x1 << DPIO_CHV_GAIN_CTRL_SHIFT
);
6366 tribuf_calcntr
= 0x9;
6367 } else if (vco
<= 6200000) {
6368 loopfilter
|= (0x5 << DPIO_CHV_PROP_COEFF_SHIFT
);
6369 loopfilter
|= (0xB << DPIO_CHV_INT_COEFF_SHIFT
);
6370 loopfilter
|= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT
);
6371 tribuf_calcntr
= 0x9;
6372 } else if (vco
<= 6480000) {
6373 loopfilter
|= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT
);
6374 loopfilter
|= (0x9 << DPIO_CHV_INT_COEFF_SHIFT
);
6375 loopfilter
|= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT
);
6376 tribuf_calcntr
= 0x8;
6378 /* Not supported. Apply the same limits as in the max case */
6379 loopfilter
|= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT
);
6380 loopfilter
|= (0x9 << DPIO_CHV_INT_COEFF_SHIFT
);
6381 loopfilter
|= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT
);
6384 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW6(port
), loopfilter
);
6386 dpio_val
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW8(port
));
6387 dpio_val
&= ~DPIO_CHV_TDC_TARGET_CNT_MASK
;
6388 dpio_val
|= (tribuf_calcntr
<< DPIO_CHV_TDC_TARGET_CNT_SHIFT
);
6389 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW8(port
), dpio_val
);
6392 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
),
6393 vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
)) |
6396 mutex_unlock(&dev_priv
->dpio_lock
);
6400 * vlv_force_pll_on - forcibly enable just the PLL
6401 * @dev_priv: i915 private structure
6402 * @pipe: pipe PLL to enable
6403 * @dpll: PLL configuration
6405 * Enable the PLL for @pipe using the supplied @dpll config. To be used
6406 * in cases where we need the PLL enabled even when @pipe is not going to
6409 void vlv_force_pll_on(struct drm_device
*dev
, enum pipe pipe
,
6410 const struct dpll
*dpll
)
6412 struct intel_crtc
*crtc
=
6413 to_intel_crtc(intel_get_crtc_for_pipe(dev
, pipe
));
6414 struct intel_crtc_state pipe_config
= {
6415 .base
.crtc
= &crtc
->base
,
6416 .pixel_multiplier
= 1,
6420 if (IS_CHERRYVIEW(dev
)) {
6421 chv_update_pll(crtc
, &pipe_config
);
6422 chv_prepare_pll(crtc
, &pipe_config
);
6423 chv_enable_pll(crtc
, &pipe_config
);
6425 vlv_update_pll(crtc
, &pipe_config
);
6426 vlv_prepare_pll(crtc
, &pipe_config
);
6427 vlv_enable_pll(crtc
, &pipe_config
);
6432 * vlv_force_pll_off - forcibly disable just the PLL
6433 * @dev_priv: i915 private structure
6434 * @pipe: pipe PLL to disable
6436 * Disable the PLL for @pipe. To be used in cases where we need
6437 * the PLL enabled even when @pipe is not going to be enabled.
6439 void vlv_force_pll_off(struct drm_device
*dev
, enum pipe pipe
)
6441 if (IS_CHERRYVIEW(dev
))
6442 chv_disable_pll(to_i915(dev
), pipe
);
6444 vlv_disable_pll(to_i915(dev
), pipe
);
6447 static void i9xx_update_pll(struct intel_crtc
*crtc
,
6448 struct intel_crtc_state
*crtc_state
,
6449 intel_clock_t
*reduced_clock
,
6452 struct drm_device
*dev
= crtc
->base
.dev
;
6453 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6456 struct dpll
*clock
= &crtc_state
->dpll
;
6458 i9xx_update_pll_dividers(crtc
, crtc_state
, reduced_clock
);
6460 is_sdvo
= intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_SDVO
) ||
6461 intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_HDMI
);
6463 dpll
= DPLL_VGA_MODE_DIS
;
6465 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
))
6466 dpll
|= DPLLB_MODE_LVDS
;
6468 dpll
|= DPLLB_MODE_DAC_SERIAL
;
6470 if (IS_I945G(dev
) || IS_I945GM(dev
) || IS_G33(dev
)) {
6471 dpll
|= (crtc_state
->pixel_multiplier
- 1)
6472 << SDVO_MULTIPLIER_SHIFT_HIRES
;
6476 dpll
|= DPLL_SDVO_HIGH_SPEED
;
6478 if (crtc_state
->has_dp_encoder
)
6479 dpll
|= DPLL_SDVO_HIGH_SPEED
;
6481 /* compute bitmask from p1 value */
6482 if (IS_PINEVIEW(dev
))
6483 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
;
6485 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
6486 if (IS_G4X(dev
) && reduced_clock
)
6487 dpll
|= (1 << (reduced_clock
->p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
6489 switch (clock
->p2
) {
6491 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
6494 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
6497 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
6500 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
6503 if (INTEL_INFO(dev
)->gen
>= 4)
6504 dpll
|= (6 << PLL_LOAD_PULSE_PHASE_SHIFT
);
6506 if (crtc_state
->sdvo_tv_clock
)
6507 dpll
|= PLL_REF_INPUT_TVCLKINBC
;
6508 else if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
6509 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
6510 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
6512 dpll
|= PLL_REF_INPUT_DREFCLK
;
6514 dpll
|= DPLL_VCO_ENABLE
;
6515 crtc_state
->dpll_hw_state
.dpll
= dpll
;
6517 if (INTEL_INFO(dev
)->gen
>= 4) {
6518 u32 dpll_md
= (crtc_state
->pixel_multiplier
- 1)
6519 << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
6520 crtc_state
->dpll_hw_state
.dpll_md
= dpll_md
;
6524 static void i8xx_update_pll(struct intel_crtc
*crtc
,
6525 struct intel_crtc_state
*crtc_state
,
6526 intel_clock_t
*reduced_clock
,
6529 struct drm_device
*dev
= crtc
->base
.dev
;
6530 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6532 struct dpll
*clock
= &crtc_state
->dpll
;
6534 i9xx_update_pll_dividers(crtc
, crtc_state
, reduced_clock
);
6536 dpll
= DPLL_VGA_MODE_DIS
;
6538 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
6539 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
6542 dpll
|= PLL_P1_DIVIDE_BY_TWO
;
6544 dpll
|= (clock
->p1
- 2) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
6546 dpll
|= PLL_P2_DIVIDE_BY_4
;
6549 if (!IS_I830(dev
) && intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_DVO
))
6550 dpll
|= DPLL_DVO_2X_MODE
;
6552 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
6553 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
6554 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
6556 dpll
|= PLL_REF_INPUT_DREFCLK
;
6558 dpll
|= DPLL_VCO_ENABLE
;
6559 crtc_state
->dpll_hw_state
.dpll
= dpll
;
6562 static void intel_set_pipe_timings(struct intel_crtc
*intel_crtc
)
6564 struct drm_device
*dev
= intel_crtc
->base
.dev
;
6565 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6566 enum pipe pipe
= intel_crtc
->pipe
;
6567 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
6568 struct drm_display_mode
*adjusted_mode
=
6569 &intel_crtc
->config
->base
.adjusted_mode
;
6570 uint32_t crtc_vtotal
, crtc_vblank_end
;
6573 /* We need to be careful not to changed the adjusted mode, for otherwise
6574 * the hw state checker will get angry at the mismatch. */
6575 crtc_vtotal
= adjusted_mode
->crtc_vtotal
;
6576 crtc_vblank_end
= adjusted_mode
->crtc_vblank_end
;
6578 if (adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
) {
6579 /* the chip adds 2 halflines automatically */
6581 crtc_vblank_end
-= 1;
6583 if (intel_pipe_has_type(intel_crtc
, INTEL_OUTPUT_SDVO
))
6584 vsyncshift
= (adjusted_mode
->crtc_htotal
- 1) / 2;
6586 vsyncshift
= adjusted_mode
->crtc_hsync_start
-
6587 adjusted_mode
->crtc_htotal
/ 2;
6589 vsyncshift
+= adjusted_mode
->crtc_htotal
;
6592 if (INTEL_INFO(dev
)->gen
> 3)
6593 I915_WRITE(VSYNCSHIFT(cpu_transcoder
), vsyncshift
);
6595 I915_WRITE(HTOTAL(cpu_transcoder
),
6596 (adjusted_mode
->crtc_hdisplay
- 1) |
6597 ((adjusted_mode
->crtc_htotal
- 1) << 16));
6598 I915_WRITE(HBLANK(cpu_transcoder
),
6599 (adjusted_mode
->crtc_hblank_start
- 1) |
6600 ((adjusted_mode
->crtc_hblank_end
- 1) << 16));
6601 I915_WRITE(HSYNC(cpu_transcoder
),
6602 (adjusted_mode
->crtc_hsync_start
- 1) |
6603 ((adjusted_mode
->crtc_hsync_end
- 1) << 16));
6605 I915_WRITE(VTOTAL(cpu_transcoder
),
6606 (adjusted_mode
->crtc_vdisplay
- 1) |
6607 ((crtc_vtotal
- 1) << 16));
6608 I915_WRITE(VBLANK(cpu_transcoder
),
6609 (adjusted_mode
->crtc_vblank_start
- 1) |
6610 ((crtc_vblank_end
- 1) << 16));
6611 I915_WRITE(VSYNC(cpu_transcoder
),
6612 (adjusted_mode
->crtc_vsync_start
- 1) |
6613 ((adjusted_mode
->crtc_vsync_end
- 1) << 16));
6615 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
6616 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
6617 * documented on the DDI_FUNC_CTL register description, EDP Input Select
6619 if (IS_HASWELL(dev
) && cpu_transcoder
== TRANSCODER_EDP
&&
6620 (pipe
== PIPE_B
|| pipe
== PIPE_C
))
6621 I915_WRITE(VTOTAL(pipe
), I915_READ(VTOTAL(cpu_transcoder
)));
6623 /* pipesrc controls the size that is scaled from, which should
6624 * always be the user's requested size.
6626 I915_WRITE(PIPESRC(pipe
),
6627 ((intel_crtc
->config
->pipe_src_w
- 1) << 16) |
6628 (intel_crtc
->config
->pipe_src_h
- 1));
6631 static void intel_get_pipe_timings(struct intel_crtc
*crtc
,
6632 struct intel_crtc_state
*pipe_config
)
6634 struct drm_device
*dev
= crtc
->base
.dev
;
6635 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6636 enum transcoder cpu_transcoder
= pipe_config
->cpu_transcoder
;
6639 tmp
= I915_READ(HTOTAL(cpu_transcoder
));
6640 pipe_config
->base
.adjusted_mode
.crtc_hdisplay
= (tmp
& 0xffff) + 1;
6641 pipe_config
->base
.adjusted_mode
.crtc_htotal
= ((tmp
>> 16) & 0xffff) + 1;
6642 tmp
= I915_READ(HBLANK(cpu_transcoder
));
6643 pipe_config
->base
.adjusted_mode
.crtc_hblank_start
= (tmp
& 0xffff) + 1;
6644 pipe_config
->base
.adjusted_mode
.crtc_hblank_end
= ((tmp
>> 16) & 0xffff) + 1;
6645 tmp
= I915_READ(HSYNC(cpu_transcoder
));
6646 pipe_config
->base
.adjusted_mode
.crtc_hsync_start
= (tmp
& 0xffff) + 1;
6647 pipe_config
->base
.adjusted_mode
.crtc_hsync_end
= ((tmp
>> 16) & 0xffff) + 1;
6649 tmp
= I915_READ(VTOTAL(cpu_transcoder
));
6650 pipe_config
->base
.adjusted_mode
.crtc_vdisplay
= (tmp
& 0xffff) + 1;
6651 pipe_config
->base
.adjusted_mode
.crtc_vtotal
= ((tmp
>> 16) & 0xffff) + 1;
6652 tmp
= I915_READ(VBLANK(cpu_transcoder
));
6653 pipe_config
->base
.adjusted_mode
.crtc_vblank_start
= (tmp
& 0xffff) + 1;
6654 pipe_config
->base
.adjusted_mode
.crtc_vblank_end
= ((tmp
>> 16) & 0xffff) + 1;
6655 tmp
= I915_READ(VSYNC(cpu_transcoder
));
6656 pipe_config
->base
.adjusted_mode
.crtc_vsync_start
= (tmp
& 0xffff) + 1;
6657 pipe_config
->base
.adjusted_mode
.crtc_vsync_end
= ((tmp
>> 16) & 0xffff) + 1;
6659 if (I915_READ(PIPECONF(cpu_transcoder
)) & PIPECONF_INTERLACE_MASK
) {
6660 pipe_config
->base
.adjusted_mode
.flags
|= DRM_MODE_FLAG_INTERLACE
;
6661 pipe_config
->base
.adjusted_mode
.crtc_vtotal
+= 1;
6662 pipe_config
->base
.adjusted_mode
.crtc_vblank_end
+= 1;
6665 tmp
= I915_READ(PIPESRC(crtc
->pipe
));
6666 pipe_config
->pipe_src_h
= (tmp
& 0xffff) + 1;
6667 pipe_config
->pipe_src_w
= ((tmp
>> 16) & 0xffff) + 1;
6669 pipe_config
->base
.mode
.vdisplay
= pipe_config
->pipe_src_h
;
6670 pipe_config
->base
.mode
.hdisplay
= pipe_config
->pipe_src_w
;
6673 void intel_mode_from_pipe_config(struct drm_display_mode
*mode
,
6674 struct intel_crtc_state
*pipe_config
)
6676 mode
->hdisplay
= pipe_config
->base
.adjusted_mode
.crtc_hdisplay
;
6677 mode
->htotal
= pipe_config
->base
.adjusted_mode
.crtc_htotal
;
6678 mode
->hsync_start
= pipe_config
->base
.adjusted_mode
.crtc_hsync_start
;
6679 mode
->hsync_end
= pipe_config
->base
.adjusted_mode
.crtc_hsync_end
;
6681 mode
->vdisplay
= pipe_config
->base
.adjusted_mode
.crtc_vdisplay
;
6682 mode
->vtotal
= pipe_config
->base
.adjusted_mode
.crtc_vtotal
;
6683 mode
->vsync_start
= pipe_config
->base
.adjusted_mode
.crtc_vsync_start
;
6684 mode
->vsync_end
= pipe_config
->base
.adjusted_mode
.crtc_vsync_end
;
6686 mode
->flags
= pipe_config
->base
.adjusted_mode
.flags
;
6688 mode
->clock
= pipe_config
->base
.adjusted_mode
.crtc_clock
;
6689 mode
->flags
|= pipe_config
->base
.adjusted_mode
.flags
;
6692 static void i9xx_set_pipeconf(struct intel_crtc
*intel_crtc
)
6694 struct drm_device
*dev
= intel_crtc
->base
.dev
;
6695 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6700 if ((intel_crtc
->pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
6701 (intel_crtc
->pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
6702 pipeconf
|= I915_READ(PIPECONF(intel_crtc
->pipe
)) & PIPECONF_ENABLE
;
6704 if (intel_crtc
->config
->double_wide
)
6705 pipeconf
|= PIPECONF_DOUBLE_WIDE
;
6707 /* only g4x and later have fancy bpc/dither controls */
6708 if (IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) {
6709 /* Bspec claims that we can't use dithering for 30bpp pipes. */
6710 if (intel_crtc
->config
->dither
&& intel_crtc
->config
->pipe_bpp
!= 30)
6711 pipeconf
|= PIPECONF_DITHER_EN
|
6712 PIPECONF_DITHER_TYPE_SP
;
6714 switch (intel_crtc
->config
->pipe_bpp
) {
6716 pipeconf
|= PIPECONF_6BPC
;
6719 pipeconf
|= PIPECONF_8BPC
;
6722 pipeconf
|= PIPECONF_10BPC
;
6725 /* Case prevented by intel_choose_pipe_bpp_dither. */
6730 if (HAS_PIPE_CXSR(dev
)) {
6731 if (intel_crtc
->lowfreq_avail
) {
6732 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
6733 pipeconf
|= PIPECONF_CXSR_DOWNCLOCK
;
6735 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
6739 if (intel_crtc
->config
->base
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
) {
6740 if (INTEL_INFO(dev
)->gen
< 4 ||
6741 intel_pipe_has_type(intel_crtc
, INTEL_OUTPUT_SDVO
))
6742 pipeconf
|= PIPECONF_INTERLACE_W_FIELD_INDICATION
;
6744 pipeconf
|= PIPECONF_INTERLACE_W_SYNC_SHIFT
;
6746 pipeconf
|= PIPECONF_PROGRESSIVE
;
6748 if (IS_VALLEYVIEW(dev
) && intel_crtc
->config
->limited_color_range
)
6749 pipeconf
|= PIPECONF_COLOR_RANGE_SELECT
;
6751 I915_WRITE(PIPECONF(intel_crtc
->pipe
), pipeconf
);
6752 POSTING_READ(PIPECONF(intel_crtc
->pipe
));
6755 static int i9xx_crtc_compute_clock(struct intel_crtc
*crtc
,
6756 struct intel_crtc_state
*crtc_state
)
6758 struct drm_device
*dev
= crtc
->base
.dev
;
6759 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6760 int refclk
, num_connectors
= 0;
6761 intel_clock_t clock
, reduced_clock
;
6762 bool ok
, has_reduced_clock
= false;
6763 bool is_lvds
= false, is_dsi
= false;
6764 struct intel_encoder
*encoder
;
6765 const intel_limit_t
*limit
;
6766 struct drm_atomic_state
*state
= crtc_state
->base
.state
;
6767 struct drm_connector_state
*connector_state
;
6770 for (i
= 0; i
< state
->num_connector
; i
++) {
6771 if (!state
->connectors
[i
])
6774 connector_state
= state
->connector_states
[i
];
6775 if (connector_state
->crtc
!= &crtc
->base
)
6778 encoder
= to_intel_encoder(connector_state
->best_encoder
);
6780 switch (encoder
->type
) {
6781 case INTEL_OUTPUT_LVDS
:
6784 case INTEL_OUTPUT_DSI
:
6797 if (!crtc_state
->clock_set
) {
6798 refclk
= i9xx_get_refclk(crtc_state
, num_connectors
);
6801 * Returns a set of divisors for the desired target clock with
6802 * the given refclk, or FALSE. The returned values represent
6803 * the clock equation: reflck * (5 * (m1 + 2) + (m2 + 2)) / (n +
6806 limit
= intel_limit(crtc_state
, refclk
);
6807 ok
= dev_priv
->display
.find_dpll(limit
, crtc_state
,
6808 crtc_state
->port_clock
,
6809 refclk
, NULL
, &clock
);
6811 DRM_ERROR("Couldn't find PLL settings for mode!\n");
6815 if (is_lvds
&& dev_priv
->lvds_downclock_avail
) {
6817 * Ensure we match the reduced clock's P to the target
6818 * clock. If the clocks don't match, we can't switch
6819 * the display clock by using the FP0/FP1. In such case
6820 * we will disable the LVDS downclock feature.
6823 dev_priv
->display
.find_dpll(limit
, crtc_state
,
6824 dev_priv
->lvds_downclock
,
6828 /* Compat-code for transition, will disappear. */
6829 crtc_state
->dpll
.n
= clock
.n
;
6830 crtc_state
->dpll
.m1
= clock
.m1
;
6831 crtc_state
->dpll
.m2
= clock
.m2
;
6832 crtc_state
->dpll
.p1
= clock
.p1
;
6833 crtc_state
->dpll
.p2
= clock
.p2
;
6837 i8xx_update_pll(crtc
, crtc_state
,
6838 has_reduced_clock
? &reduced_clock
: NULL
,
6840 } else if (IS_CHERRYVIEW(dev
)) {
6841 chv_update_pll(crtc
, crtc_state
);
6842 } else if (IS_VALLEYVIEW(dev
)) {
6843 vlv_update_pll(crtc
, crtc_state
);
6845 i9xx_update_pll(crtc
, crtc_state
,
6846 has_reduced_clock
? &reduced_clock
: NULL
,
6853 static void i9xx_get_pfit_config(struct intel_crtc
*crtc
,
6854 struct intel_crtc_state
*pipe_config
)
6856 struct drm_device
*dev
= crtc
->base
.dev
;
6857 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6860 if (INTEL_INFO(dev
)->gen
<= 3 && (IS_I830(dev
) || !IS_MOBILE(dev
)))
6863 tmp
= I915_READ(PFIT_CONTROL
);
6864 if (!(tmp
& PFIT_ENABLE
))
6867 /* Check whether the pfit is attached to our pipe. */
6868 if (INTEL_INFO(dev
)->gen
< 4) {
6869 if (crtc
->pipe
!= PIPE_B
)
6872 if ((tmp
& PFIT_PIPE_MASK
) != (crtc
->pipe
<< PFIT_PIPE_SHIFT
))
6876 pipe_config
->gmch_pfit
.control
= tmp
;
6877 pipe_config
->gmch_pfit
.pgm_ratios
= I915_READ(PFIT_PGM_RATIOS
);
6878 if (INTEL_INFO(dev
)->gen
< 5)
6879 pipe_config
->gmch_pfit
.lvds_border_bits
=
6880 I915_READ(LVDS
) & LVDS_BORDER_ENABLE
;
6883 static void vlv_crtc_clock_get(struct intel_crtc
*crtc
,
6884 struct intel_crtc_state
*pipe_config
)
6886 struct drm_device
*dev
= crtc
->base
.dev
;
6887 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6888 int pipe
= pipe_config
->cpu_transcoder
;
6889 intel_clock_t clock
;
6891 int refclk
= 100000;
6893 /* In case of MIPI DPLL will not even be used */
6894 if (!(pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
))
6897 mutex_lock(&dev_priv
->dpio_lock
);
6898 mdiv
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW3(pipe
));
6899 mutex_unlock(&dev_priv
->dpio_lock
);
6901 clock
.m1
= (mdiv
>> DPIO_M1DIV_SHIFT
) & 7;
6902 clock
.m2
= mdiv
& DPIO_M2DIV_MASK
;
6903 clock
.n
= (mdiv
>> DPIO_N_SHIFT
) & 0xf;
6904 clock
.p1
= (mdiv
>> DPIO_P1_SHIFT
) & 7;
6905 clock
.p2
= (mdiv
>> DPIO_P2_SHIFT
) & 0x1f;
6907 vlv_clock(refclk
, &clock
);
6909 /* clock.dot is the fast clock */
6910 pipe_config
->port_clock
= clock
.dot
/ 5;
6914 i9xx_get_initial_plane_config(struct intel_crtc
*crtc
,
6915 struct intel_initial_plane_config
*plane_config
)
6917 struct drm_device
*dev
= crtc
->base
.dev
;
6918 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6919 u32 val
, base
, offset
;
6920 int pipe
= crtc
->pipe
, plane
= crtc
->plane
;
6921 int fourcc
, pixel_format
;
6922 unsigned int aligned_height
;
6923 struct drm_framebuffer
*fb
;
6924 struct intel_framebuffer
*intel_fb
;
6926 val
= I915_READ(DSPCNTR(plane
));
6927 if (!(val
& DISPLAY_PLANE_ENABLE
))
6930 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
6932 DRM_DEBUG_KMS("failed to alloc fb\n");
6936 fb
= &intel_fb
->base
;
6938 if (INTEL_INFO(dev
)->gen
>= 4) {
6939 if (val
& DISPPLANE_TILED
) {
6940 plane_config
->tiling
= I915_TILING_X
;
6941 fb
->modifier
[0] = I915_FORMAT_MOD_X_TILED
;
6945 pixel_format
= val
& DISPPLANE_PIXFORMAT_MASK
;
6946 fourcc
= i9xx_format_to_fourcc(pixel_format
);
6947 fb
->pixel_format
= fourcc
;
6948 fb
->bits_per_pixel
= drm_format_plane_cpp(fourcc
, 0) * 8;
6950 if (INTEL_INFO(dev
)->gen
>= 4) {
6951 if (plane_config
->tiling
)
6952 offset
= I915_READ(DSPTILEOFF(plane
));
6954 offset
= I915_READ(DSPLINOFF(plane
));
6955 base
= I915_READ(DSPSURF(plane
)) & 0xfffff000;
6957 base
= I915_READ(DSPADDR(plane
));
6959 plane_config
->base
= base
;
6961 val
= I915_READ(PIPESRC(pipe
));
6962 fb
->width
= ((val
>> 16) & 0xfff) + 1;
6963 fb
->height
= ((val
>> 0) & 0xfff) + 1;
6965 val
= I915_READ(DSPSTRIDE(pipe
));
6966 fb
->pitches
[0] = val
& 0xffffffc0;
6968 aligned_height
= intel_fb_align_height(dev
, fb
->height
,
6972 plane_config
->size
= fb
->pitches
[0] * aligned_height
;
6974 DRM_DEBUG_KMS("pipe/plane %c/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
6975 pipe_name(pipe
), plane
, fb
->width
, fb
->height
,
6976 fb
->bits_per_pixel
, base
, fb
->pitches
[0],
6977 plane_config
->size
);
6979 plane_config
->fb
= intel_fb
;
6982 static void chv_crtc_clock_get(struct intel_crtc
*crtc
,
6983 struct intel_crtc_state
*pipe_config
)
6985 struct drm_device
*dev
= crtc
->base
.dev
;
6986 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6987 int pipe
= pipe_config
->cpu_transcoder
;
6988 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
6989 intel_clock_t clock
;
6990 u32 cmn_dw13
, pll_dw0
, pll_dw1
, pll_dw2
;
6991 int refclk
= 100000;
6993 mutex_lock(&dev_priv
->dpio_lock
);
6994 cmn_dw13
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW13(port
));
6995 pll_dw0
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW0(port
));
6996 pll_dw1
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW1(port
));
6997 pll_dw2
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW2(port
));
6998 mutex_unlock(&dev_priv
->dpio_lock
);
7000 clock
.m1
= (pll_dw1
& 0x7) == DPIO_CHV_M1_DIV_BY_2
? 2 : 0;
7001 clock
.m2
= ((pll_dw0
& 0xff) << 22) | (pll_dw2
& 0x3fffff);
7002 clock
.n
= (pll_dw1
>> DPIO_CHV_N_DIV_SHIFT
) & 0xf;
7003 clock
.p1
= (cmn_dw13
>> DPIO_CHV_P1_DIV_SHIFT
) & 0x7;
7004 clock
.p2
= (cmn_dw13
>> DPIO_CHV_P2_DIV_SHIFT
) & 0x1f;
7006 chv_clock(refclk
, &clock
);
7008 /* clock.dot is the fast clock */
7009 pipe_config
->port_clock
= clock
.dot
/ 5;
7012 static bool i9xx_get_pipe_config(struct intel_crtc
*crtc
,
7013 struct intel_crtc_state
*pipe_config
)
7015 struct drm_device
*dev
= crtc
->base
.dev
;
7016 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7019 if (!intel_display_power_is_enabled(dev_priv
,
7020 POWER_DOMAIN_PIPE(crtc
->pipe
)))
7023 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
7024 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
7026 tmp
= I915_READ(PIPECONF(crtc
->pipe
));
7027 if (!(tmp
& PIPECONF_ENABLE
))
7030 if (IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) {
7031 switch (tmp
& PIPECONF_BPC_MASK
) {
7033 pipe_config
->pipe_bpp
= 18;
7036 pipe_config
->pipe_bpp
= 24;
7038 case PIPECONF_10BPC
:
7039 pipe_config
->pipe_bpp
= 30;
7046 if (IS_VALLEYVIEW(dev
) && (tmp
& PIPECONF_COLOR_RANGE_SELECT
))
7047 pipe_config
->limited_color_range
= true;
7049 if (INTEL_INFO(dev
)->gen
< 4)
7050 pipe_config
->double_wide
= tmp
& PIPECONF_DOUBLE_WIDE
;
7052 intel_get_pipe_timings(crtc
, pipe_config
);
7054 i9xx_get_pfit_config(crtc
, pipe_config
);
7056 if (INTEL_INFO(dev
)->gen
>= 4) {
7057 tmp
= I915_READ(DPLL_MD(crtc
->pipe
));
7058 pipe_config
->pixel_multiplier
=
7059 ((tmp
& DPLL_MD_UDI_MULTIPLIER_MASK
)
7060 >> DPLL_MD_UDI_MULTIPLIER_SHIFT
) + 1;
7061 pipe_config
->dpll_hw_state
.dpll_md
= tmp
;
7062 } else if (IS_I945G(dev
) || IS_I945GM(dev
) || IS_G33(dev
)) {
7063 tmp
= I915_READ(DPLL(crtc
->pipe
));
7064 pipe_config
->pixel_multiplier
=
7065 ((tmp
& SDVO_MULTIPLIER_MASK
)
7066 >> SDVO_MULTIPLIER_SHIFT_HIRES
) + 1;
7068 /* Note that on i915G/GM the pixel multiplier is in the sdvo
7069 * port and will be fixed up in the encoder->get_config
7071 pipe_config
->pixel_multiplier
= 1;
7073 pipe_config
->dpll_hw_state
.dpll
= I915_READ(DPLL(crtc
->pipe
));
7074 if (!IS_VALLEYVIEW(dev
)) {
7076 * DPLL_DVO_2X_MODE must be enabled for both DPLLs
7077 * on 830. Filter it out here so that we don't
7078 * report errors due to that.
7081 pipe_config
->dpll_hw_state
.dpll
&= ~DPLL_DVO_2X_MODE
;
7083 pipe_config
->dpll_hw_state
.fp0
= I915_READ(FP0(crtc
->pipe
));
7084 pipe_config
->dpll_hw_state
.fp1
= I915_READ(FP1(crtc
->pipe
));
7086 /* Mask out read-only status bits. */
7087 pipe_config
->dpll_hw_state
.dpll
&= ~(DPLL_LOCK_VLV
|
7088 DPLL_PORTC_READY_MASK
|
7089 DPLL_PORTB_READY_MASK
);
7092 if (IS_CHERRYVIEW(dev
))
7093 chv_crtc_clock_get(crtc
, pipe_config
);
7094 else if (IS_VALLEYVIEW(dev
))
7095 vlv_crtc_clock_get(crtc
, pipe_config
);
7097 i9xx_crtc_clock_get(crtc
, pipe_config
);
7102 static void ironlake_init_pch_refclk(struct drm_device
*dev
)
7104 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7105 struct intel_encoder
*encoder
;
7107 bool has_lvds
= false;
7108 bool has_cpu_edp
= false;
7109 bool has_panel
= false;
7110 bool has_ck505
= false;
7111 bool can_ssc
= false;
7113 /* We need to take the global config into account */
7114 for_each_intel_encoder(dev
, encoder
) {
7115 switch (encoder
->type
) {
7116 case INTEL_OUTPUT_LVDS
:
7120 case INTEL_OUTPUT_EDP
:
7122 if (enc_to_dig_port(&encoder
->base
)->port
== PORT_A
)
7130 if (HAS_PCH_IBX(dev
)) {
7131 has_ck505
= dev_priv
->vbt
.display_clock_mode
;
7132 can_ssc
= has_ck505
;
7138 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n",
7139 has_panel
, has_lvds
, has_ck505
);
7141 /* Ironlake: try to setup display ref clock before DPLL
7142 * enabling. This is only under driver's control after
7143 * PCH B stepping, previous chipset stepping should be
7144 * ignoring this setting.
7146 val
= I915_READ(PCH_DREF_CONTROL
);
7148 /* As we must carefully and slowly disable/enable each source in turn,
7149 * compute the final state we want first and check if we need to
7150 * make any changes at all.
7153 final
&= ~DREF_NONSPREAD_SOURCE_MASK
;
7155 final
|= DREF_NONSPREAD_CK505_ENABLE
;
7157 final
|= DREF_NONSPREAD_SOURCE_ENABLE
;
7159 final
&= ~DREF_SSC_SOURCE_MASK
;
7160 final
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
7161 final
&= ~DREF_SSC1_ENABLE
;
7164 final
|= DREF_SSC_SOURCE_ENABLE
;
7166 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
7167 final
|= DREF_SSC1_ENABLE
;
7170 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
7171 final
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
7173 final
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
7175 final
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
7177 final
|= DREF_SSC_SOURCE_DISABLE
;
7178 final
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
7184 /* Always enable nonspread source */
7185 val
&= ~DREF_NONSPREAD_SOURCE_MASK
;
7188 val
|= DREF_NONSPREAD_CK505_ENABLE
;
7190 val
|= DREF_NONSPREAD_SOURCE_ENABLE
;
7193 val
&= ~DREF_SSC_SOURCE_MASK
;
7194 val
|= DREF_SSC_SOURCE_ENABLE
;
7196 /* SSC must be turned on before enabling the CPU output */
7197 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
7198 DRM_DEBUG_KMS("Using SSC on panel\n");
7199 val
|= DREF_SSC1_ENABLE
;
7201 val
&= ~DREF_SSC1_ENABLE
;
7203 /* Get SSC going before enabling the outputs */
7204 I915_WRITE(PCH_DREF_CONTROL
, val
);
7205 POSTING_READ(PCH_DREF_CONTROL
);
7208 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
7210 /* Enable CPU source on CPU attached eDP */
7212 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
7213 DRM_DEBUG_KMS("Using SSC on eDP\n");
7214 val
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
7216 val
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
7218 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
7220 I915_WRITE(PCH_DREF_CONTROL
, val
);
7221 POSTING_READ(PCH_DREF_CONTROL
);
7224 DRM_DEBUG_KMS("Disabling SSC entirely\n");
7226 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
7228 /* Turn off CPU output */
7229 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
7231 I915_WRITE(PCH_DREF_CONTROL
, val
);
7232 POSTING_READ(PCH_DREF_CONTROL
);
7235 /* Turn off the SSC source */
7236 val
&= ~DREF_SSC_SOURCE_MASK
;
7237 val
|= DREF_SSC_SOURCE_DISABLE
;
7240 val
&= ~DREF_SSC1_ENABLE
;
7242 I915_WRITE(PCH_DREF_CONTROL
, val
);
7243 POSTING_READ(PCH_DREF_CONTROL
);
7247 BUG_ON(val
!= final
);
7250 static void lpt_reset_fdi_mphy(struct drm_i915_private
*dev_priv
)
7254 tmp
= I915_READ(SOUTH_CHICKEN2
);
7255 tmp
|= FDI_MPHY_IOSFSB_RESET_CTL
;
7256 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
7258 if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2
) &
7259 FDI_MPHY_IOSFSB_RESET_STATUS
, 100))
7260 DRM_ERROR("FDI mPHY reset assert timeout\n");
7262 tmp
= I915_READ(SOUTH_CHICKEN2
);
7263 tmp
&= ~FDI_MPHY_IOSFSB_RESET_CTL
;
7264 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
7266 if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2
) &
7267 FDI_MPHY_IOSFSB_RESET_STATUS
) == 0, 100))
7268 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
7271 /* WaMPhyProgramming:hsw */
7272 static void lpt_program_fdi_mphy(struct drm_i915_private
*dev_priv
)
7276 tmp
= intel_sbi_read(dev_priv
, 0x8008, SBI_MPHY
);
7277 tmp
&= ~(0xFF << 24);
7278 tmp
|= (0x12 << 24);
7279 intel_sbi_write(dev_priv
, 0x8008, tmp
, SBI_MPHY
);
7281 tmp
= intel_sbi_read(dev_priv
, 0x2008, SBI_MPHY
);
7283 intel_sbi_write(dev_priv
, 0x2008, tmp
, SBI_MPHY
);
7285 tmp
= intel_sbi_read(dev_priv
, 0x2108, SBI_MPHY
);
7287 intel_sbi_write(dev_priv
, 0x2108, tmp
, SBI_MPHY
);
7289 tmp
= intel_sbi_read(dev_priv
, 0x206C, SBI_MPHY
);
7290 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
7291 intel_sbi_write(dev_priv
, 0x206C, tmp
, SBI_MPHY
);
7293 tmp
= intel_sbi_read(dev_priv
, 0x216C, SBI_MPHY
);
7294 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
7295 intel_sbi_write(dev_priv
, 0x216C, tmp
, SBI_MPHY
);
7297 tmp
= intel_sbi_read(dev_priv
, 0x2080, SBI_MPHY
);
7300 intel_sbi_write(dev_priv
, 0x2080, tmp
, SBI_MPHY
);
7302 tmp
= intel_sbi_read(dev_priv
, 0x2180, SBI_MPHY
);
7305 intel_sbi_write(dev_priv
, 0x2180, tmp
, SBI_MPHY
);
7307 tmp
= intel_sbi_read(dev_priv
, 0x208C, SBI_MPHY
);
7310 intel_sbi_write(dev_priv
, 0x208C, tmp
, SBI_MPHY
);
7312 tmp
= intel_sbi_read(dev_priv
, 0x218C, SBI_MPHY
);
7315 intel_sbi_write(dev_priv
, 0x218C, tmp
, SBI_MPHY
);
7317 tmp
= intel_sbi_read(dev_priv
, 0x2098, SBI_MPHY
);
7318 tmp
&= ~(0xFF << 16);
7319 tmp
|= (0x1C << 16);
7320 intel_sbi_write(dev_priv
, 0x2098, tmp
, SBI_MPHY
);
7322 tmp
= intel_sbi_read(dev_priv
, 0x2198, SBI_MPHY
);
7323 tmp
&= ~(0xFF << 16);
7324 tmp
|= (0x1C << 16);
7325 intel_sbi_write(dev_priv
, 0x2198, tmp
, SBI_MPHY
);
7327 tmp
= intel_sbi_read(dev_priv
, 0x20C4, SBI_MPHY
);
7329 intel_sbi_write(dev_priv
, 0x20C4, tmp
, SBI_MPHY
);
7331 tmp
= intel_sbi_read(dev_priv
, 0x21C4, SBI_MPHY
);
7333 intel_sbi_write(dev_priv
, 0x21C4, tmp
, SBI_MPHY
);
7335 tmp
= intel_sbi_read(dev_priv
, 0x20EC, SBI_MPHY
);
7336 tmp
&= ~(0xF << 28);
7338 intel_sbi_write(dev_priv
, 0x20EC, tmp
, SBI_MPHY
);
7340 tmp
= intel_sbi_read(dev_priv
, 0x21EC, SBI_MPHY
);
7341 tmp
&= ~(0xF << 28);
7343 intel_sbi_write(dev_priv
, 0x21EC, tmp
, SBI_MPHY
);
7346 /* Implements 3 different sequences from BSpec chapter "Display iCLK
7347 * Programming" based on the parameters passed:
7348 * - Sequence to enable CLKOUT_DP
7349 * - Sequence to enable CLKOUT_DP without spread
7350 * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O
7352 static void lpt_enable_clkout_dp(struct drm_device
*dev
, bool with_spread
,
7355 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7358 if (WARN(with_fdi
&& !with_spread
, "FDI requires downspread\n"))
7360 if (WARN(dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
&&
7361 with_fdi
, "LP PCH doesn't have FDI\n"))
7364 mutex_lock(&dev_priv
->dpio_lock
);
7366 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
7367 tmp
&= ~SBI_SSCCTL_DISABLE
;
7368 tmp
|= SBI_SSCCTL_PATHALT
;
7369 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
7374 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
7375 tmp
&= ~SBI_SSCCTL_PATHALT
;
7376 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
7379 lpt_reset_fdi_mphy(dev_priv
);
7380 lpt_program_fdi_mphy(dev_priv
);
7384 reg
= (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) ?
7385 SBI_GEN0
: SBI_DBUFF0
;
7386 tmp
= intel_sbi_read(dev_priv
, reg
, SBI_ICLK
);
7387 tmp
|= SBI_GEN0_CFG_BUFFENABLE_DISABLE
;
7388 intel_sbi_write(dev_priv
, reg
, tmp
, SBI_ICLK
);
7390 mutex_unlock(&dev_priv
->dpio_lock
);
7393 /* Sequence to disable CLKOUT_DP */
7394 static void lpt_disable_clkout_dp(struct drm_device
*dev
)
7396 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7399 mutex_lock(&dev_priv
->dpio_lock
);
7401 reg
= (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) ?
7402 SBI_GEN0
: SBI_DBUFF0
;
7403 tmp
= intel_sbi_read(dev_priv
, reg
, SBI_ICLK
);
7404 tmp
&= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE
;
7405 intel_sbi_write(dev_priv
, reg
, tmp
, SBI_ICLK
);
7407 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
7408 if (!(tmp
& SBI_SSCCTL_DISABLE
)) {
7409 if (!(tmp
& SBI_SSCCTL_PATHALT
)) {
7410 tmp
|= SBI_SSCCTL_PATHALT
;
7411 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
7414 tmp
|= SBI_SSCCTL_DISABLE
;
7415 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
7418 mutex_unlock(&dev_priv
->dpio_lock
);
7421 static void lpt_init_pch_refclk(struct drm_device
*dev
)
7423 struct intel_encoder
*encoder
;
7424 bool has_vga
= false;
7426 for_each_intel_encoder(dev
, encoder
) {
7427 switch (encoder
->type
) {
7428 case INTEL_OUTPUT_ANALOG
:
7437 lpt_enable_clkout_dp(dev
, true, true);
7439 lpt_disable_clkout_dp(dev
);
7443 * Initialize reference clocks when the driver loads
7445 void intel_init_pch_refclk(struct drm_device
*dev
)
7447 if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
7448 ironlake_init_pch_refclk(dev
);
7449 else if (HAS_PCH_LPT(dev
))
7450 lpt_init_pch_refclk(dev
);
7453 static int ironlake_get_refclk(struct intel_crtc_state
*crtc_state
)
7455 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
7456 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7457 struct drm_atomic_state
*state
= crtc_state
->base
.state
;
7458 struct drm_connector_state
*connector_state
;
7459 struct intel_encoder
*encoder
;
7460 int num_connectors
= 0, i
;
7461 bool is_lvds
= false;
7463 for (i
= 0; i
< state
->num_connector
; i
++) {
7464 if (!state
->connectors
[i
])
7467 connector_state
= state
->connector_states
[i
];
7468 if (connector_state
->crtc
!= crtc_state
->base
.crtc
)
7471 encoder
= to_intel_encoder(connector_state
->best_encoder
);
7473 switch (encoder
->type
) {
7474 case INTEL_OUTPUT_LVDS
:
7483 if (is_lvds
&& intel_panel_use_ssc(dev_priv
) && num_connectors
< 2) {
7484 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n",
7485 dev_priv
->vbt
.lvds_ssc_freq
);
7486 return dev_priv
->vbt
.lvds_ssc_freq
;
7492 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
)
7494 struct drm_i915_private
*dev_priv
= crtc
->dev
->dev_private
;
7495 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7496 int pipe
= intel_crtc
->pipe
;
7501 switch (intel_crtc
->config
->pipe_bpp
) {
7503 val
|= PIPECONF_6BPC
;
7506 val
|= PIPECONF_8BPC
;
7509 val
|= PIPECONF_10BPC
;
7512 val
|= PIPECONF_12BPC
;
7515 /* Case prevented by intel_choose_pipe_bpp_dither. */
7519 if (intel_crtc
->config
->dither
)
7520 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
7522 if (intel_crtc
->config
->base
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
7523 val
|= PIPECONF_INTERLACED_ILK
;
7525 val
|= PIPECONF_PROGRESSIVE
;
7527 if (intel_crtc
->config
->limited_color_range
)
7528 val
|= PIPECONF_COLOR_RANGE_SELECT
;
7530 I915_WRITE(PIPECONF(pipe
), val
);
7531 POSTING_READ(PIPECONF(pipe
));
7535 * Set up the pipe CSC unit.
7537 * Currently only full range RGB to limited range RGB conversion
7538 * is supported, but eventually this should handle various
7539 * RGB<->YCbCr scenarios as well.
7541 static void intel_set_pipe_csc(struct drm_crtc
*crtc
)
7543 struct drm_device
*dev
= crtc
->dev
;
7544 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7545 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7546 int pipe
= intel_crtc
->pipe
;
7547 uint16_t coeff
= 0x7800; /* 1.0 */
7550 * TODO: Check what kind of values actually come out of the pipe
7551 * with these coeff/postoff values and adjust to get the best
7552 * accuracy. Perhaps we even need to take the bpc value into
7556 if (intel_crtc
->config
->limited_color_range
)
7557 coeff
= ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */
7560 * GY/GU and RY/RU should be the other way around according
7561 * to BSpec, but reality doesn't agree. Just set them up in
7562 * a way that results in the correct picture.
7564 I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe
), coeff
<< 16);
7565 I915_WRITE(PIPE_CSC_COEFF_BY(pipe
), 0);
7567 I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe
), coeff
);
7568 I915_WRITE(PIPE_CSC_COEFF_BU(pipe
), 0);
7570 I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe
), 0);
7571 I915_WRITE(PIPE_CSC_COEFF_BV(pipe
), coeff
<< 16);
7573 I915_WRITE(PIPE_CSC_PREOFF_HI(pipe
), 0);
7574 I915_WRITE(PIPE_CSC_PREOFF_ME(pipe
), 0);
7575 I915_WRITE(PIPE_CSC_PREOFF_LO(pipe
), 0);
7577 if (INTEL_INFO(dev
)->gen
> 6) {
7578 uint16_t postoff
= 0;
7580 if (intel_crtc
->config
->limited_color_range
)
7581 postoff
= (16 * (1 << 12) / 255) & 0x1fff;
7583 I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe
), postoff
);
7584 I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe
), postoff
);
7585 I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe
), postoff
);
7587 I915_WRITE(PIPE_CSC_MODE(pipe
), 0);
7589 uint32_t mode
= CSC_MODE_YUV_TO_RGB
;
7591 if (intel_crtc
->config
->limited_color_range
)
7592 mode
|= CSC_BLACK_SCREEN_OFFSET
;
7594 I915_WRITE(PIPE_CSC_MODE(pipe
), mode
);
7598 static void haswell_set_pipeconf(struct drm_crtc
*crtc
)
7600 struct drm_device
*dev
= crtc
->dev
;
7601 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7602 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7603 enum pipe pipe
= intel_crtc
->pipe
;
7604 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
7609 if (IS_HASWELL(dev
) && intel_crtc
->config
->dither
)
7610 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
7612 if (intel_crtc
->config
->base
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
7613 val
|= PIPECONF_INTERLACED_ILK
;
7615 val
|= PIPECONF_PROGRESSIVE
;
7617 I915_WRITE(PIPECONF(cpu_transcoder
), val
);
7618 POSTING_READ(PIPECONF(cpu_transcoder
));
7620 I915_WRITE(GAMMA_MODE(intel_crtc
->pipe
), GAMMA_MODE_MODE_8BIT
);
7621 POSTING_READ(GAMMA_MODE(intel_crtc
->pipe
));
7623 if (IS_BROADWELL(dev
) || INTEL_INFO(dev
)->gen
>= 9) {
7626 switch (intel_crtc
->config
->pipe_bpp
) {
7628 val
|= PIPEMISC_DITHER_6_BPC
;
7631 val
|= PIPEMISC_DITHER_8_BPC
;
7634 val
|= PIPEMISC_DITHER_10_BPC
;
7637 val
|= PIPEMISC_DITHER_12_BPC
;
7640 /* Case prevented by pipe_config_set_bpp. */
7644 if (intel_crtc
->config
->dither
)
7645 val
|= PIPEMISC_DITHER_ENABLE
| PIPEMISC_DITHER_TYPE_SP
;
7647 I915_WRITE(PIPEMISC(pipe
), val
);
7651 static bool ironlake_compute_clocks(struct drm_crtc
*crtc
,
7652 struct intel_crtc_state
*crtc_state
,
7653 intel_clock_t
*clock
,
7654 bool *has_reduced_clock
,
7655 intel_clock_t
*reduced_clock
)
7657 struct drm_device
*dev
= crtc
->dev
;
7658 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7660 const intel_limit_t
*limit
;
7661 bool ret
, is_lvds
= false;
7663 is_lvds
= intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
);
7665 refclk
= ironlake_get_refclk(crtc_state
);
7668 * Returns a set of divisors for the desired target clock with the given
7669 * refclk, or FALSE. The returned values represent the clock equation:
7670 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
7672 limit
= intel_limit(crtc_state
, refclk
);
7673 ret
= dev_priv
->display
.find_dpll(limit
, crtc_state
,
7674 crtc_state
->port_clock
,
7675 refclk
, NULL
, clock
);
7679 if (is_lvds
&& dev_priv
->lvds_downclock_avail
) {
7681 * Ensure we match the reduced clock's P to the target clock.
7682 * If the clocks don't match, we can't switch the display clock
7683 * by using the FP0/FP1. In such case we will disable the LVDS
7684 * downclock feature.
7686 *has_reduced_clock
=
7687 dev_priv
->display
.find_dpll(limit
, crtc_state
,
7688 dev_priv
->lvds_downclock
,
7696 int ironlake_get_lanes_required(int target_clock
, int link_bw
, int bpp
)
7699 * Account for spread spectrum to avoid
7700 * oversubscribing the link. Max center spread
7701 * is 2.5%; use 5% for safety's sake.
7703 u32 bps
= target_clock
* bpp
* 21 / 20;
7704 return DIV_ROUND_UP(bps
, link_bw
* 8);
7707 static bool ironlake_needs_fb_cb_tune(struct dpll
*dpll
, int factor
)
7709 return i9xx_dpll_compute_m(dpll
) < factor
* dpll
->n
;
7712 static uint32_t ironlake_compute_dpll(struct intel_crtc
*intel_crtc
,
7713 struct intel_crtc_state
*crtc_state
,
7715 intel_clock_t
*reduced_clock
, u32
*fp2
)
7717 struct drm_crtc
*crtc
= &intel_crtc
->base
;
7718 struct drm_device
*dev
= crtc
->dev
;
7719 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7720 struct drm_atomic_state
*state
= crtc_state
->base
.state
;
7721 struct drm_connector_state
*connector_state
;
7722 struct intel_encoder
*encoder
;
7724 int factor
, num_connectors
= 0, i
;
7725 bool is_lvds
= false, is_sdvo
= false;
7727 for (i
= 0; i
< state
->num_connector
; i
++) {
7728 if (!state
->connectors
[i
])
7731 connector_state
= state
->connector_states
[i
];
7732 if (connector_state
->crtc
!= crtc_state
->base
.crtc
)
7735 encoder
= to_intel_encoder(connector_state
->best_encoder
);
7737 switch (encoder
->type
) {
7738 case INTEL_OUTPUT_LVDS
:
7741 case INTEL_OUTPUT_SDVO
:
7742 case INTEL_OUTPUT_HDMI
:
7752 /* Enable autotuning of the PLL clock (if permissible) */
7755 if ((intel_panel_use_ssc(dev_priv
) &&
7756 dev_priv
->vbt
.lvds_ssc_freq
== 100000) ||
7757 (HAS_PCH_IBX(dev
) && intel_is_dual_link_lvds(dev
)))
7759 } else if (crtc_state
->sdvo_tv_clock
)
7762 if (ironlake_needs_fb_cb_tune(&crtc_state
->dpll
, factor
))
7765 if (fp2
&& (reduced_clock
->m
< factor
* reduced_clock
->n
))
7771 dpll
|= DPLLB_MODE_LVDS
;
7773 dpll
|= DPLLB_MODE_DAC_SERIAL
;
7775 dpll
|= (crtc_state
->pixel_multiplier
- 1)
7776 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
;
7779 dpll
|= DPLL_SDVO_HIGH_SPEED
;
7780 if (crtc_state
->has_dp_encoder
)
7781 dpll
|= DPLL_SDVO_HIGH_SPEED
;
7783 /* compute bitmask from p1 value */
7784 dpll
|= (1 << (crtc_state
->dpll
.p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
7786 dpll
|= (1 << (crtc_state
->dpll
.p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
7788 switch (crtc_state
->dpll
.p2
) {
7790 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
7793 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
7796 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
7799 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
7803 if (is_lvds
&& intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
7804 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
7806 dpll
|= PLL_REF_INPUT_DREFCLK
;
7808 return dpll
| DPLL_VCO_ENABLE
;
7811 static int ironlake_crtc_compute_clock(struct intel_crtc
*crtc
,
7812 struct intel_crtc_state
*crtc_state
)
7814 struct drm_device
*dev
= crtc
->base
.dev
;
7815 intel_clock_t clock
, reduced_clock
;
7816 u32 dpll
= 0, fp
= 0, fp2
= 0;
7817 bool ok
, has_reduced_clock
= false;
7818 bool is_lvds
= false;
7819 struct intel_shared_dpll
*pll
;
7821 is_lvds
= intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
);
7823 WARN(!(HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
)),
7824 "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev
));
7826 ok
= ironlake_compute_clocks(&crtc
->base
, crtc_state
, &clock
,
7827 &has_reduced_clock
, &reduced_clock
);
7828 if (!ok
&& !crtc_state
->clock_set
) {
7829 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7832 /* Compat-code for transition, will disappear. */
7833 if (!crtc_state
->clock_set
) {
7834 crtc_state
->dpll
.n
= clock
.n
;
7835 crtc_state
->dpll
.m1
= clock
.m1
;
7836 crtc_state
->dpll
.m2
= clock
.m2
;
7837 crtc_state
->dpll
.p1
= clock
.p1
;
7838 crtc_state
->dpll
.p2
= clock
.p2
;
7841 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
7842 if (crtc_state
->has_pch_encoder
) {
7843 fp
= i9xx_dpll_compute_fp(&crtc_state
->dpll
);
7844 if (has_reduced_clock
)
7845 fp2
= i9xx_dpll_compute_fp(&reduced_clock
);
7847 dpll
= ironlake_compute_dpll(crtc
, crtc_state
,
7848 &fp
, &reduced_clock
,
7849 has_reduced_clock
? &fp2
: NULL
);
7851 crtc_state
->dpll_hw_state
.dpll
= dpll
;
7852 crtc_state
->dpll_hw_state
.fp0
= fp
;
7853 if (has_reduced_clock
)
7854 crtc_state
->dpll_hw_state
.fp1
= fp2
;
7856 crtc_state
->dpll_hw_state
.fp1
= fp
;
7858 pll
= intel_get_shared_dpll(crtc
, crtc_state
);
7860 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
7861 pipe_name(crtc
->pipe
));
7866 if (is_lvds
&& has_reduced_clock
)
7867 crtc
->lowfreq_avail
= true;
7869 crtc
->lowfreq_avail
= false;
7874 static void intel_pch_transcoder_get_m_n(struct intel_crtc
*crtc
,
7875 struct intel_link_m_n
*m_n
)
7877 struct drm_device
*dev
= crtc
->base
.dev
;
7878 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7879 enum pipe pipe
= crtc
->pipe
;
7881 m_n
->link_m
= I915_READ(PCH_TRANS_LINK_M1(pipe
));
7882 m_n
->link_n
= I915_READ(PCH_TRANS_LINK_N1(pipe
));
7883 m_n
->gmch_m
= I915_READ(PCH_TRANS_DATA_M1(pipe
))
7885 m_n
->gmch_n
= I915_READ(PCH_TRANS_DATA_N1(pipe
));
7886 m_n
->tu
= ((I915_READ(PCH_TRANS_DATA_M1(pipe
))
7887 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
7890 static void intel_cpu_transcoder_get_m_n(struct intel_crtc
*crtc
,
7891 enum transcoder transcoder
,
7892 struct intel_link_m_n
*m_n
,
7893 struct intel_link_m_n
*m2_n2
)
7895 struct drm_device
*dev
= crtc
->base
.dev
;
7896 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7897 enum pipe pipe
= crtc
->pipe
;
7899 if (INTEL_INFO(dev
)->gen
>= 5) {
7900 m_n
->link_m
= I915_READ(PIPE_LINK_M1(transcoder
));
7901 m_n
->link_n
= I915_READ(PIPE_LINK_N1(transcoder
));
7902 m_n
->gmch_m
= I915_READ(PIPE_DATA_M1(transcoder
))
7904 m_n
->gmch_n
= I915_READ(PIPE_DATA_N1(transcoder
));
7905 m_n
->tu
= ((I915_READ(PIPE_DATA_M1(transcoder
))
7906 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
7907 /* Read M2_N2 registers only for gen < 8 (M2_N2 available for
7908 * gen < 8) and if DRRS is supported (to make sure the
7909 * registers are not unnecessarily read).
7911 if (m2_n2
&& INTEL_INFO(dev
)->gen
< 8 &&
7912 crtc
->config
->has_drrs
) {
7913 m2_n2
->link_m
= I915_READ(PIPE_LINK_M2(transcoder
));
7914 m2_n2
->link_n
= I915_READ(PIPE_LINK_N2(transcoder
));
7915 m2_n2
->gmch_m
= I915_READ(PIPE_DATA_M2(transcoder
))
7917 m2_n2
->gmch_n
= I915_READ(PIPE_DATA_N2(transcoder
));
7918 m2_n2
->tu
= ((I915_READ(PIPE_DATA_M2(transcoder
))
7919 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
7922 m_n
->link_m
= I915_READ(PIPE_LINK_M_G4X(pipe
));
7923 m_n
->link_n
= I915_READ(PIPE_LINK_N_G4X(pipe
));
7924 m_n
->gmch_m
= I915_READ(PIPE_DATA_M_G4X(pipe
))
7926 m_n
->gmch_n
= I915_READ(PIPE_DATA_N_G4X(pipe
));
7927 m_n
->tu
= ((I915_READ(PIPE_DATA_M_G4X(pipe
))
7928 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
7932 void intel_dp_get_m_n(struct intel_crtc
*crtc
,
7933 struct intel_crtc_state
*pipe_config
)
7935 if (pipe_config
->has_pch_encoder
)
7936 intel_pch_transcoder_get_m_n(crtc
, &pipe_config
->dp_m_n
);
7938 intel_cpu_transcoder_get_m_n(crtc
, pipe_config
->cpu_transcoder
,
7939 &pipe_config
->dp_m_n
,
7940 &pipe_config
->dp_m2_n2
);
7943 static void ironlake_get_fdi_m_n_config(struct intel_crtc
*crtc
,
7944 struct intel_crtc_state
*pipe_config
)
7946 intel_cpu_transcoder_get_m_n(crtc
, pipe_config
->cpu_transcoder
,
7947 &pipe_config
->fdi_m_n
, NULL
);
7950 static void skylake_get_pfit_config(struct intel_crtc
*crtc
,
7951 struct intel_crtc_state
*pipe_config
)
7953 struct drm_device
*dev
= crtc
->base
.dev
;
7954 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7957 tmp
= I915_READ(PS_CTL(crtc
->pipe
));
7959 if (tmp
& PS_ENABLE
) {
7960 pipe_config
->pch_pfit
.enabled
= true;
7961 pipe_config
->pch_pfit
.pos
= I915_READ(PS_WIN_POS(crtc
->pipe
));
7962 pipe_config
->pch_pfit
.size
= I915_READ(PS_WIN_SZ(crtc
->pipe
));
7967 skylake_get_initial_plane_config(struct intel_crtc
*crtc
,
7968 struct intel_initial_plane_config
*plane_config
)
7970 struct drm_device
*dev
= crtc
->base
.dev
;
7971 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7972 u32 val
, base
, offset
, stride_mult
, tiling
;
7973 int pipe
= crtc
->pipe
;
7974 int fourcc
, pixel_format
;
7975 unsigned int aligned_height
;
7976 struct drm_framebuffer
*fb
;
7977 struct intel_framebuffer
*intel_fb
;
7979 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
7981 DRM_DEBUG_KMS("failed to alloc fb\n");
7985 fb
= &intel_fb
->base
;
7987 val
= I915_READ(PLANE_CTL(pipe
, 0));
7988 if (!(val
& PLANE_CTL_ENABLE
))
7991 pixel_format
= val
& PLANE_CTL_FORMAT_MASK
;
7992 fourcc
= skl_format_to_fourcc(pixel_format
,
7993 val
& PLANE_CTL_ORDER_RGBX
,
7994 val
& PLANE_CTL_ALPHA_MASK
);
7995 fb
->pixel_format
= fourcc
;
7996 fb
->bits_per_pixel
= drm_format_plane_cpp(fourcc
, 0) * 8;
7998 tiling
= val
& PLANE_CTL_TILED_MASK
;
8000 case PLANE_CTL_TILED_LINEAR
:
8001 fb
->modifier
[0] = DRM_FORMAT_MOD_NONE
;
8003 case PLANE_CTL_TILED_X
:
8004 plane_config
->tiling
= I915_TILING_X
;
8005 fb
->modifier
[0] = I915_FORMAT_MOD_X_TILED
;
8007 case PLANE_CTL_TILED_Y
:
8008 fb
->modifier
[0] = I915_FORMAT_MOD_Y_TILED
;
8010 case PLANE_CTL_TILED_YF
:
8011 fb
->modifier
[0] = I915_FORMAT_MOD_Yf_TILED
;
8014 MISSING_CASE(tiling
);
8018 base
= I915_READ(PLANE_SURF(pipe
, 0)) & 0xfffff000;
8019 plane_config
->base
= base
;
8021 offset
= I915_READ(PLANE_OFFSET(pipe
, 0));
8023 val
= I915_READ(PLANE_SIZE(pipe
, 0));
8024 fb
->height
= ((val
>> 16) & 0xfff) + 1;
8025 fb
->width
= ((val
>> 0) & 0x1fff) + 1;
8027 val
= I915_READ(PLANE_STRIDE(pipe
, 0));
8028 stride_mult
= intel_fb_stride_alignment(dev
, fb
->modifier
[0],
8030 fb
->pitches
[0] = (val
& 0x3ff) * stride_mult
;
8032 aligned_height
= intel_fb_align_height(dev
, fb
->height
,
8036 plane_config
->size
= fb
->pitches
[0] * aligned_height
;
8038 DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
8039 pipe_name(pipe
), fb
->width
, fb
->height
,
8040 fb
->bits_per_pixel
, base
, fb
->pitches
[0],
8041 plane_config
->size
);
8043 plane_config
->fb
= intel_fb
;
8050 static void ironlake_get_pfit_config(struct intel_crtc
*crtc
,
8051 struct intel_crtc_state
*pipe_config
)
8053 struct drm_device
*dev
= crtc
->base
.dev
;
8054 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8057 tmp
= I915_READ(PF_CTL(crtc
->pipe
));
8059 if (tmp
& PF_ENABLE
) {
8060 pipe_config
->pch_pfit
.enabled
= true;
8061 pipe_config
->pch_pfit
.pos
= I915_READ(PF_WIN_POS(crtc
->pipe
));
8062 pipe_config
->pch_pfit
.size
= I915_READ(PF_WIN_SZ(crtc
->pipe
));
8064 /* We currently do not free assignements of panel fitters on
8065 * ivb/hsw (since we don't use the higher upscaling modes which
8066 * differentiates them) so just WARN about this case for now. */
8068 WARN_ON((tmp
& PF_PIPE_SEL_MASK_IVB
) !=
8069 PF_PIPE_SEL_IVB(crtc
->pipe
));
8075 ironlake_get_initial_plane_config(struct intel_crtc
*crtc
,
8076 struct intel_initial_plane_config
*plane_config
)
8078 struct drm_device
*dev
= crtc
->base
.dev
;
8079 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8080 u32 val
, base
, offset
;
8081 int pipe
= crtc
->pipe
;
8082 int fourcc
, pixel_format
;
8083 unsigned int aligned_height
;
8084 struct drm_framebuffer
*fb
;
8085 struct intel_framebuffer
*intel_fb
;
8087 val
= I915_READ(DSPCNTR(pipe
));
8088 if (!(val
& DISPLAY_PLANE_ENABLE
))
8091 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
8093 DRM_DEBUG_KMS("failed to alloc fb\n");
8097 fb
= &intel_fb
->base
;
8099 if (INTEL_INFO(dev
)->gen
>= 4) {
8100 if (val
& DISPPLANE_TILED
) {
8101 plane_config
->tiling
= I915_TILING_X
;
8102 fb
->modifier
[0] = I915_FORMAT_MOD_X_TILED
;
8106 pixel_format
= val
& DISPPLANE_PIXFORMAT_MASK
;
8107 fourcc
= i9xx_format_to_fourcc(pixel_format
);
8108 fb
->pixel_format
= fourcc
;
8109 fb
->bits_per_pixel
= drm_format_plane_cpp(fourcc
, 0) * 8;
8111 base
= I915_READ(DSPSURF(pipe
)) & 0xfffff000;
8112 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
8113 offset
= I915_READ(DSPOFFSET(pipe
));
8115 if (plane_config
->tiling
)
8116 offset
= I915_READ(DSPTILEOFF(pipe
));
8118 offset
= I915_READ(DSPLINOFF(pipe
));
8120 plane_config
->base
= base
;
8122 val
= I915_READ(PIPESRC(pipe
));
8123 fb
->width
= ((val
>> 16) & 0xfff) + 1;
8124 fb
->height
= ((val
>> 0) & 0xfff) + 1;
8126 val
= I915_READ(DSPSTRIDE(pipe
));
8127 fb
->pitches
[0] = val
& 0xffffffc0;
8129 aligned_height
= intel_fb_align_height(dev
, fb
->height
,
8133 plane_config
->size
= fb
->pitches
[0] * aligned_height
;
8135 DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
8136 pipe_name(pipe
), fb
->width
, fb
->height
,
8137 fb
->bits_per_pixel
, base
, fb
->pitches
[0],
8138 plane_config
->size
);
8140 plane_config
->fb
= intel_fb
;
8143 static bool ironlake_get_pipe_config(struct intel_crtc
*crtc
,
8144 struct intel_crtc_state
*pipe_config
)
8146 struct drm_device
*dev
= crtc
->base
.dev
;
8147 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8150 if (!intel_display_power_is_enabled(dev_priv
,
8151 POWER_DOMAIN_PIPE(crtc
->pipe
)))
8154 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
8155 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
8157 tmp
= I915_READ(PIPECONF(crtc
->pipe
));
8158 if (!(tmp
& PIPECONF_ENABLE
))
8161 switch (tmp
& PIPECONF_BPC_MASK
) {
8163 pipe_config
->pipe_bpp
= 18;
8166 pipe_config
->pipe_bpp
= 24;
8168 case PIPECONF_10BPC
:
8169 pipe_config
->pipe_bpp
= 30;
8171 case PIPECONF_12BPC
:
8172 pipe_config
->pipe_bpp
= 36;
8178 if (tmp
& PIPECONF_COLOR_RANGE_SELECT
)
8179 pipe_config
->limited_color_range
= true;
8181 if (I915_READ(PCH_TRANSCONF(crtc
->pipe
)) & TRANS_ENABLE
) {
8182 struct intel_shared_dpll
*pll
;
8184 pipe_config
->has_pch_encoder
= true;
8186 tmp
= I915_READ(FDI_RX_CTL(crtc
->pipe
));
8187 pipe_config
->fdi_lanes
= ((FDI_DP_PORT_WIDTH_MASK
& tmp
) >>
8188 FDI_DP_PORT_WIDTH_SHIFT
) + 1;
8190 ironlake_get_fdi_m_n_config(crtc
, pipe_config
);
8192 if (HAS_PCH_IBX(dev_priv
->dev
)) {
8193 pipe_config
->shared_dpll
=
8194 (enum intel_dpll_id
) crtc
->pipe
;
8196 tmp
= I915_READ(PCH_DPLL_SEL
);
8197 if (tmp
& TRANS_DPLLB_SEL(crtc
->pipe
))
8198 pipe_config
->shared_dpll
= DPLL_ID_PCH_PLL_B
;
8200 pipe_config
->shared_dpll
= DPLL_ID_PCH_PLL_A
;
8203 pll
= &dev_priv
->shared_dplls
[pipe_config
->shared_dpll
];
8205 WARN_ON(!pll
->get_hw_state(dev_priv
, pll
,
8206 &pipe_config
->dpll_hw_state
));
8208 tmp
= pipe_config
->dpll_hw_state
.dpll
;
8209 pipe_config
->pixel_multiplier
=
8210 ((tmp
& PLL_REF_SDVO_HDMI_MULTIPLIER_MASK
)
8211 >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
) + 1;
8213 ironlake_pch_clock_get(crtc
, pipe_config
);
8215 pipe_config
->pixel_multiplier
= 1;
8218 intel_get_pipe_timings(crtc
, pipe_config
);
8220 ironlake_get_pfit_config(crtc
, pipe_config
);
8225 static void assert_can_disable_lcpll(struct drm_i915_private
*dev_priv
)
8227 struct drm_device
*dev
= dev_priv
->dev
;
8228 struct intel_crtc
*crtc
;
8230 for_each_intel_crtc(dev
, crtc
)
8231 I915_STATE_WARN(crtc
->active
, "CRTC for pipe %c enabled\n",
8232 pipe_name(crtc
->pipe
));
8234 I915_STATE_WARN(I915_READ(HSW_PWR_WELL_DRIVER
), "Power well on\n");
8235 I915_STATE_WARN(I915_READ(SPLL_CTL
) & SPLL_PLL_ENABLE
, "SPLL enabled\n");
8236 I915_STATE_WARN(I915_READ(WRPLL_CTL1
) & WRPLL_PLL_ENABLE
, "WRPLL1 enabled\n");
8237 I915_STATE_WARN(I915_READ(WRPLL_CTL2
) & WRPLL_PLL_ENABLE
, "WRPLL2 enabled\n");
8238 I915_STATE_WARN(I915_READ(PCH_PP_STATUS
) & PP_ON
, "Panel power on\n");
8239 I915_STATE_WARN(I915_READ(BLC_PWM_CPU_CTL2
) & BLM_PWM_ENABLE
,
8240 "CPU PWM1 enabled\n");
8241 if (IS_HASWELL(dev
))
8242 I915_STATE_WARN(I915_READ(HSW_BLC_PWM2_CTL
) & BLM_PWM_ENABLE
,
8243 "CPU PWM2 enabled\n");
8244 I915_STATE_WARN(I915_READ(BLC_PWM_PCH_CTL1
) & BLM_PCH_PWM_ENABLE
,
8245 "PCH PWM1 enabled\n");
8246 I915_STATE_WARN(I915_READ(UTIL_PIN_CTL
) & UTIL_PIN_ENABLE
,
8247 "Utility pin enabled\n");
8248 I915_STATE_WARN(I915_READ(PCH_GTC_CTL
) & PCH_GTC_ENABLE
, "PCH GTC enabled\n");
8251 * In theory we can still leave IRQs enabled, as long as only the HPD
8252 * interrupts remain enabled. We used to check for that, but since it's
8253 * gen-specific and since we only disable LCPLL after we fully disable
8254 * the interrupts, the check below should be enough.
8256 I915_STATE_WARN(intel_irqs_enabled(dev_priv
), "IRQs enabled\n");
8259 static uint32_t hsw_read_dcomp(struct drm_i915_private
*dev_priv
)
8261 struct drm_device
*dev
= dev_priv
->dev
;
8263 if (IS_HASWELL(dev
))
8264 return I915_READ(D_COMP_HSW
);
8266 return I915_READ(D_COMP_BDW
);
8269 static void hsw_write_dcomp(struct drm_i915_private
*dev_priv
, uint32_t val
)
8271 struct drm_device
*dev
= dev_priv
->dev
;
8273 if (IS_HASWELL(dev
)) {
8274 mutex_lock(&dev_priv
->rps
.hw_lock
);
8275 if (sandybridge_pcode_write(dev_priv
, GEN6_PCODE_WRITE_D_COMP
,
8277 DRM_ERROR("Failed to write to D_COMP\n");
8278 mutex_unlock(&dev_priv
->rps
.hw_lock
);
8280 I915_WRITE(D_COMP_BDW
, val
);
8281 POSTING_READ(D_COMP_BDW
);
8286 * This function implements pieces of two sequences from BSpec:
8287 * - Sequence for display software to disable LCPLL
8288 * - Sequence for display software to allow package C8+
8289 * The steps implemented here are just the steps that actually touch the LCPLL
8290 * register. Callers should take care of disabling all the display engine
8291 * functions, doing the mode unset, fixing interrupts, etc.
8293 static void hsw_disable_lcpll(struct drm_i915_private
*dev_priv
,
8294 bool switch_to_fclk
, bool allow_power_down
)
8298 assert_can_disable_lcpll(dev_priv
);
8300 val
= I915_READ(LCPLL_CTL
);
8302 if (switch_to_fclk
) {
8303 val
|= LCPLL_CD_SOURCE_FCLK
;
8304 I915_WRITE(LCPLL_CTL
, val
);
8306 if (wait_for_atomic_us(I915_READ(LCPLL_CTL
) &
8307 LCPLL_CD_SOURCE_FCLK_DONE
, 1))
8308 DRM_ERROR("Switching to FCLK failed\n");
8310 val
= I915_READ(LCPLL_CTL
);
8313 val
|= LCPLL_PLL_DISABLE
;
8314 I915_WRITE(LCPLL_CTL
, val
);
8315 POSTING_READ(LCPLL_CTL
);
8317 if (wait_for((I915_READ(LCPLL_CTL
) & LCPLL_PLL_LOCK
) == 0, 1))
8318 DRM_ERROR("LCPLL still locked\n");
8320 val
= hsw_read_dcomp(dev_priv
);
8321 val
|= D_COMP_COMP_DISABLE
;
8322 hsw_write_dcomp(dev_priv
, val
);
8325 if (wait_for((hsw_read_dcomp(dev_priv
) & D_COMP_RCOMP_IN_PROGRESS
) == 0,
8327 DRM_ERROR("D_COMP RCOMP still in progress\n");
8329 if (allow_power_down
) {
8330 val
= I915_READ(LCPLL_CTL
);
8331 val
|= LCPLL_POWER_DOWN_ALLOW
;
8332 I915_WRITE(LCPLL_CTL
, val
);
8333 POSTING_READ(LCPLL_CTL
);
8338 * Fully restores LCPLL, disallowing power down and switching back to LCPLL
8341 static void hsw_restore_lcpll(struct drm_i915_private
*dev_priv
)
8345 val
= I915_READ(LCPLL_CTL
);
8347 if ((val
& (LCPLL_PLL_LOCK
| LCPLL_PLL_DISABLE
| LCPLL_CD_SOURCE_FCLK
|
8348 LCPLL_POWER_DOWN_ALLOW
)) == LCPLL_PLL_LOCK
)
8352 * Make sure we're not on PC8 state before disabling PC8, otherwise
8353 * we'll hang the machine. To prevent PC8 state, just enable force_wake.
8355 intel_uncore_forcewake_get(dev_priv
, FORCEWAKE_ALL
);
8357 if (val
& LCPLL_POWER_DOWN_ALLOW
) {
8358 val
&= ~LCPLL_POWER_DOWN_ALLOW
;
8359 I915_WRITE(LCPLL_CTL
, val
);
8360 POSTING_READ(LCPLL_CTL
);
8363 val
= hsw_read_dcomp(dev_priv
);
8364 val
|= D_COMP_COMP_FORCE
;
8365 val
&= ~D_COMP_COMP_DISABLE
;
8366 hsw_write_dcomp(dev_priv
, val
);
8368 val
= I915_READ(LCPLL_CTL
);
8369 val
&= ~LCPLL_PLL_DISABLE
;
8370 I915_WRITE(LCPLL_CTL
, val
);
8372 if (wait_for(I915_READ(LCPLL_CTL
) & LCPLL_PLL_LOCK
, 5))
8373 DRM_ERROR("LCPLL not locked yet\n");
8375 if (val
& LCPLL_CD_SOURCE_FCLK
) {
8376 val
= I915_READ(LCPLL_CTL
);
8377 val
&= ~LCPLL_CD_SOURCE_FCLK
;
8378 I915_WRITE(LCPLL_CTL
, val
);
8380 if (wait_for_atomic_us((I915_READ(LCPLL_CTL
) &
8381 LCPLL_CD_SOURCE_FCLK_DONE
) == 0, 1))
8382 DRM_ERROR("Switching back to LCPLL failed\n");
8385 intel_uncore_forcewake_put(dev_priv
, FORCEWAKE_ALL
);
8389 * Package states C8 and deeper are really deep PC states that can only be
8390 * reached when all the devices on the system allow it, so even if the graphics
8391 * device allows PC8+, it doesn't mean the system will actually get to these
8392 * states. Our driver only allows PC8+ when going into runtime PM.
8394 * The requirements for PC8+ are that all the outputs are disabled, the power
8395 * well is disabled and most interrupts are disabled, and these are also
8396 * requirements for runtime PM. When these conditions are met, we manually do
8397 * the other conditions: disable the interrupts, clocks and switch LCPLL refclk
8398 * to Fclk. If we're in PC8+ and we get an non-hotplug interrupt, we can hard
8401 * When we really reach PC8 or deeper states (not just when we allow it) we lose
8402 * the state of some registers, so when we come back from PC8+ we need to
8403 * restore this state. We don't get into PC8+ if we're not in RC6, so we don't
8404 * need to take care of the registers kept by RC6. Notice that this happens even
8405 * if we don't put the device in PCI D3 state (which is what currently happens
8406 * because of the runtime PM support).
8408 * For more, read "Display Sequences for Package C8" on the hardware
8411 void hsw_enable_pc8(struct drm_i915_private
*dev_priv
)
8413 struct drm_device
*dev
= dev_priv
->dev
;
8416 DRM_DEBUG_KMS("Enabling package C8+\n");
8418 if (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) {
8419 val
= I915_READ(SOUTH_DSPCLK_GATE_D
);
8420 val
&= ~PCH_LP_PARTITION_LEVEL_DISABLE
;
8421 I915_WRITE(SOUTH_DSPCLK_GATE_D
, val
);
8424 lpt_disable_clkout_dp(dev
);
8425 hsw_disable_lcpll(dev_priv
, true, true);
8428 void hsw_disable_pc8(struct drm_i915_private
*dev_priv
)
8430 struct drm_device
*dev
= dev_priv
->dev
;
8433 DRM_DEBUG_KMS("Disabling package C8+\n");
8435 hsw_restore_lcpll(dev_priv
);
8436 lpt_init_pch_refclk(dev
);
8438 if (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) {
8439 val
= I915_READ(SOUTH_DSPCLK_GATE_D
);
8440 val
|= PCH_LP_PARTITION_LEVEL_DISABLE
;
8441 I915_WRITE(SOUTH_DSPCLK_GATE_D
, val
);
8444 intel_prepare_ddi(dev
);
8447 static int haswell_crtc_compute_clock(struct intel_crtc
*crtc
,
8448 struct intel_crtc_state
*crtc_state
)
8450 if (!intel_ddi_pll_select(crtc
, crtc_state
))
8453 crtc
->lowfreq_avail
= false;
8458 static void skylake_get_ddi_pll(struct drm_i915_private
*dev_priv
,
8460 struct intel_crtc_state
*pipe_config
)
8462 u32 temp
, dpll_ctl1
;
8464 temp
= I915_READ(DPLL_CTRL2
) & DPLL_CTRL2_DDI_CLK_SEL_MASK(port
);
8465 pipe_config
->ddi_pll_sel
= temp
>> (port
* 3 + 1);
8467 switch (pipe_config
->ddi_pll_sel
) {
8470 * On SKL the eDP DPLL (DPLL0 as we don't use SSC) is not part
8471 * of the shared DPLL framework and thus needs to be read out
8474 dpll_ctl1
= I915_READ(DPLL_CTRL1
);
8475 pipe_config
->dpll_hw_state
.ctrl1
= dpll_ctl1
& 0x3f;
8478 pipe_config
->shared_dpll
= DPLL_ID_SKL_DPLL1
;
8481 pipe_config
->shared_dpll
= DPLL_ID_SKL_DPLL2
;
8484 pipe_config
->shared_dpll
= DPLL_ID_SKL_DPLL3
;
8489 static void haswell_get_ddi_pll(struct drm_i915_private
*dev_priv
,
8491 struct intel_crtc_state
*pipe_config
)
8493 pipe_config
->ddi_pll_sel
= I915_READ(PORT_CLK_SEL(port
));
8495 switch (pipe_config
->ddi_pll_sel
) {
8496 case PORT_CLK_SEL_WRPLL1
:
8497 pipe_config
->shared_dpll
= DPLL_ID_WRPLL1
;
8499 case PORT_CLK_SEL_WRPLL2
:
8500 pipe_config
->shared_dpll
= DPLL_ID_WRPLL2
;
8505 static void haswell_get_ddi_port_state(struct intel_crtc
*crtc
,
8506 struct intel_crtc_state
*pipe_config
)
8508 struct drm_device
*dev
= crtc
->base
.dev
;
8509 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8510 struct intel_shared_dpll
*pll
;
8514 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(pipe_config
->cpu_transcoder
));
8516 port
= (tmp
& TRANS_DDI_PORT_MASK
) >> TRANS_DDI_PORT_SHIFT
;
8518 if (IS_SKYLAKE(dev
))
8519 skylake_get_ddi_pll(dev_priv
, port
, pipe_config
);
8521 haswell_get_ddi_pll(dev_priv
, port
, pipe_config
);
8523 if (pipe_config
->shared_dpll
>= 0) {
8524 pll
= &dev_priv
->shared_dplls
[pipe_config
->shared_dpll
];
8526 WARN_ON(!pll
->get_hw_state(dev_priv
, pll
,
8527 &pipe_config
->dpll_hw_state
));
8531 * Haswell has only FDI/PCH transcoder A. It is which is connected to
8532 * DDI E. So just check whether this pipe is wired to DDI E and whether
8533 * the PCH transcoder is on.
8535 if (INTEL_INFO(dev
)->gen
< 9 &&
8536 (port
== PORT_E
) && I915_READ(LPT_TRANSCONF
) & TRANS_ENABLE
) {
8537 pipe_config
->has_pch_encoder
= true;
8539 tmp
= I915_READ(FDI_RX_CTL(PIPE_A
));
8540 pipe_config
->fdi_lanes
= ((FDI_DP_PORT_WIDTH_MASK
& tmp
) >>
8541 FDI_DP_PORT_WIDTH_SHIFT
) + 1;
8543 ironlake_get_fdi_m_n_config(crtc
, pipe_config
);
8547 static bool haswell_get_pipe_config(struct intel_crtc
*crtc
,
8548 struct intel_crtc_state
*pipe_config
)
8550 struct drm_device
*dev
= crtc
->base
.dev
;
8551 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8552 enum intel_display_power_domain pfit_domain
;
8555 if (!intel_display_power_is_enabled(dev_priv
,
8556 POWER_DOMAIN_PIPE(crtc
->pipe
)))
8559 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
8560 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
8562 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP
));
8563 if (tmp
& TRANS_DDI_FUNC_ENABLE
) {
8564 enum pipe trans_edp_pipe
;
8565 switch (tmp
& TRANS_DDI_EDP_INPUT_MASK
) {
8567 WARN(1, "unknown pipe linked to edp transcoder\n");
8568 case TRANS_DDI_EDP_INPUT_A_ONOFF
:
8569 case TRANS_DDI_EDP_INPUT_A_ON
:
8570 trans_edp_pipe
= PIPE_A
;
8572 case TRANS_DDI_EDP_INPUT_B_ONOFF
:
8573 trans_edp_pipe
= PIPE_B
;
8575 case TRANS_DDI_EDP_INPUT_C_ONOFF
:
8576 trans_edp_pipe
= PIPE_C
;
8580 if (trans_edp_pipe
== crtc
->pipe
)
8581 pipe_config
->cpu_transcoder
= TRANSCODER_EDP
;
8584 if (!intel_display_power_is_enabled(dev_priv
,
8585 POWER_DOMAIN_TRANSCODER(pipe_config
->cpu_transcoder
)))
8588 tmp
= I915_READ(PIPECONF(pipe_config
->cpu_transcoder
));
8589 if (!(tmp
& PIPECONF_ENABLE
))
8592 haswell_get_ddi_port_state(crtc
, pipe_config
);
8594 intel_get_pipe_timings(crtc
, pipe_config
);
8596 pfit_domain
= POWER_DOMAIN_PIPE_PANEL_FITTER(crtc
->pipe
);
8597 if (intel_display_power_is_enabled(dev_priv
, pfit_domain
)) {
8598 if (IS_SKYLAKE(dev
))
8599 skylake_get_pfit_config(crtc
, pipe_config
);
8601 ironlake_get_pfit_config(crtc
, pipe_config
);
8604 if (IS_HASWELL(dev
))
8605 pipe_config
->ips_enabled
= hsw_crtc_supports_ips(crtc
) &&
8606 (I915_READ(IPS_CTL
) & IPS_ENABLE
);
8608 if (pipe_config
->cpu_transcoder
!= TRANSCODER_EDP
) {
8609 pipe_config
->pixel_multiplier
=
8610 I915_READ(PIPE_MULT(pipe_config
->cpu_transcoder
)) + 1;
8612 pipe_config
->pixel_multiplier
= 1;
8618 static void i845_update_cursor(struct drm_crtc
*crtc
, u32 base
)
8620 struct drm_device
*dev
= crtc
->dev
;
8621 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8622 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8623 uint32_t cntl
= 0, size
= 0;
8626 unsigned int width
= intel_crtc
->base
.cursor
->state
->crtc_w
;
8627 unsigned int height
= intel_crtc
->base
.cursor
->state
->crtc_h
;
8628 unsigned int stride
= roundup_pow_of_two(width
) * 4;
8632 WARN_ONCE(1, "Invalid cursor width/stride, width=%u, stride=%u\n",
8643 cntl
|= CURSOR_ENABLE
|
8644 CURSOR_GAMMA_ENABLE
|
8645 CURSOR_FORMAT_ARGB
|
8646 CURSOR_STRIDE(stride
);
8648 size
= (height
<< 12) | width
;
8651 if (intel_crtc
->cursor_cntl
!= 0 &&
8652 (intel_crtc
->cursor_base
!= base
||
8653 intel_crtc
->cursor_size
!= size
||
8654 intel_crtc
->cursor_cntl
!= cntl
)) {
8655 /* On these chipsets we can only modify the base/size/stride
8656 * whilst the cursor is disabled.
8658 I915_WRITE(_CURACNTR
, 0);
8659 POSTING_READ(_CURACNTR
);
8660 intel_crtc
->cursor_cntl
= 0;
8663 if (intel_crtc
->cursor_base
!= base
) {
8664 I915_WRITE(_CURABASE
, base
);
8665 intel_crtc
->cursor_base
= base
;
8668 if (intel_crtc
->cursor_size
!= size
) {
8669 I915_WRITE(CURSIZE
, size
);
8670 intel_crtc
->cursor_size
= size
;
8673 if (intel_crtc
->cursor_cntl
!= cntl
) {
8674 I915_WRITE(_CURACNTR
, cntl
);
8675 POSTING_READ(_CURACNTR
);
8676 intel_crtc
->cursor_cntl
= cntl
;
8680 static void i9xx_update_cursor(struct drm_crtc
*crtc
, u32 base
)
8682 struct drm_device
*dev
= crtc
->dev
;
8683 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8684 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8685 int pipe
= intel_crtc
->pipe
;
8690 cntl
= MCURSOR_GAMMA_ENABLE
;
8691 switch (intel_crtc
->base
.cursor
->state
->crtc_w
) {
8693 cntl
|= CURSOR_MODE_64_ARGB_AX
;
8696 cntl
|= CURSOR_MODE_128_ARGB_AX
;
8699 cntl
|= CURSOR_MODE_256_ARGB_AX
;
8702 MISSING_CASE(intel_crtc
->base
.cursor
->state
->crtc_w
);
8705 cntl
|= pipe
<< 28; /* Connect to correct pipe */
8707 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
8708 cntl
|= CURSOR_PIPE_CSC_ENABLE
;
8711 if (crtc
->cursor
->state
->rotation
== BIT(DRM_ROTATE_180
))
8712 cntl
|= CURSOR_ROTATE_180
;
8714 if (intel_crtc
->cursor_cntl
!= cntl
) {
8715 I915_WRITE(CURCNTR(pipe
), cntl
);
8716 POSTING_READ(CURCNTR(pipe
));
8717 intel_crtc
->cursor_cntl
= cntl
;
8720 /* and commit changes on next vblank */
8721 I915_WRITE(CURBASE(pipe
), base
);
8722 POSTING_READ(CURBASE(pipe
));
8724 intel_crtc
->cursor_base
= base
;
8727 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
8728 static void intel_crtc_update_cursor(struct drm_crtc
*crtc
,
8731 struct drm_device
*dev
= crtc
->dev
;
8732 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8733 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8734 int pipe
= intel_crtc
->pipe
;
8735 int x
= crtc
->cursor_x
;
8736 int y
= crtc
->cursor_y
;
8737 u32 base
= 0, pos
= 0;
8740 base
= intel_crtc
->cursor_addr
;
8742 if (x
>= intel_crtc
->config
->pipe_src_w
)
8745 if (y
>= intel_crtc
->config
->pipe_src_h
)
8749 if (x
+ intel_crtc
->base
.cursor
->state
->crtc_w
<= 0)
8752 pos
|= CURSOR_POS_SIGN
<< CURSOR_X_SHIFT
;
8755 pos
|= x
<< CURSOR_X_SHIFT
;
8758 if (y
+ intel_crtc
->base
.cursor
->state
->crtc_h
<= 0)
8761 pos
|= CURSOR_POS_SIGN
<< CURSOR_Y_SHIFT
;
8764 pos
|= y
<< CURSOR_Y_SHIFT
;
8766 if (base
== 0 && intel_crtc
->cursor_base
== 0)
8769 I915_WRITE(CURPOS(pipe
), pos
);
8771 /* ILK+ do this automagically */
8772 if (HAS_GMCH_DISPLAY(dev
) &&
8773 crtc
->cursor
->state
->rotation
== BIT(DRM_ROTATE_180
)) {
8774 base
+= (intel_crtc
->base
.cursor
->state
->crtc_h
*
8775 intel_crtc
->base
.cursor
->state
->crtc_w
- 1) * 4;
8778 if (IS_845G(dev
) || IS_I865G(dev
))
8779 i845_update_cursor(crtc
, base
);
8781 i9xx_update_cursor(crtc
, base
);
8784 static bool cursor_size_ok(struct drm_device
*dev
,
8785 uint32_t width
, uint32_t height
)
8787 if (width
== 0 || height
== 0)
8791 * 845g/865g are special in that they are only limited by
8792 * the width of their cursors, the height is arbitrary up to
8793 * the precision of the register. Everything else requires
8794 * square cursors, limited to a few power-of-two sizes.
8796 if (IS_845G(dev
) || IS_I865G(dev
)) {
8797 if ((width
& 63) != 0)
8800 if (width
> (IS_845G(dev
) ? 64 : 512))
8806 switch (width
| height
) {
8821 static void intel_crtc_gamma_set(struct drm_crtc
*crtc
, u16
*red
, u16
*green
,
8822 u16
*blue
, uint32_t start
, uint32_t size
)
8824 int end
= (start
+ size
> 256) ? 256 : start
+ size
, i
;
8825 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8827 for (i
= start
; i
< end
; i
++) {
8828 intel_crtc
->lut_r
[i
] = red
[i
] >> 8;
8829 intel_crtc
->lut_g
[i
] = green
[i
] >> 8;
8830 intel_crtc
->lut_b
[i
] = blue
[i
] >> 8;
8833 intel_crtc_load_lut(crtc
);
8836 /* VESA 640x480x72Hz mode to set on the pipe */
8837 static struct drm_display_mode load_detect_mode
= {
8838 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT
, 31500, 640, 664,
8839 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
8842 struct drm_framebuffer
*
8843 __intel_framebuffer_create(struct drm_device
*dev
,
8844 struct drm_mode_fb_cmd2
*mode_cmd
,
8845 struct drm_i915_gem_object
*obj
)
8847 struct intel_framebuffer
*intel_fb
;
8850 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
8852 drm_gem_object_unreference(&obj
->base
);
8853 return ERR_PTR(-ENOMEM
);
8856 ret
= intel_framebuffer_init(dev
, intel_fb
, mode_cmd
, obj
);
8860 return &intel_fb
->base
;
8862 drm_gem_object_unreference(&obj
->base
);
8865 return ERR_PTR(ret
);
8868 static struct drm_framebuffer
*
8869 intel_framebuffer_create(struct drm_device
*dev
,
8870 struct drm_mode_fb_cmd2
*mode_cmd
,
8871 struct drm_i915_gem_object
*obj
)
8873 struct drm_framebuffer
*fb
;
8876 ret
= i915_mutex_lock_interruptible(dev
);
8878 return ERR_PTR(ret
);
8879 fb
= __intel_framebuffer_create(dev
, mode_cmd
, obj
);
8880 mutex_unlock(&dev
->struct_mutex
);
8886 intel_framebuffer_pitch_for_width(int width
, int bpp
)
8888 u32 pitch
= DIV_ROUND_UP(width
* bpp
, 8);
8889 return ALIGN(pitch
, 64);
8893 intel_framebuffer_size_for_mode(struct drm_display_mode
*mode
, int bpp
)
8895 u32 pitch
= intel_framebuffer_pitch_for_width(mode
->hdisplay
, bpp
);
8896 return PAGE_ALIGN(pitch
* mode
->vdisplay
);
8899 static struct drm_framebuffer
*
8900 intel_framebuffer_create_for_mode(struct drm_device
*dev
,
8901 struct drm_display_mode
*mode
,
8904 struct drm_i915_gem_object
*obj
;
8905 struct drm_mode_fb_cmd2 mode_cmd
= { 0 };
8907 obj
= i915_gem_alloc_object(dev
,
8908 intel_framebuffer_size_for_mode(mode
, bpp
));
8910 return ERR_PTR(-ENOMEM
);
8912 mode_cmd
.width
= mode
->hdisplay
;
8913 mode_cmd
.height
= mode
->vdisplay
;
8914 mode_cmd
.pitches
[0] = intel_framebuffer_pitch_for_width(mode_cmd
.width
,
8916 mode_cmd
.pixel_format
= drm_mode_legacy_fb_format(bpp
, depth
);
8918 return intel_framebuffer_create(dev
, &mode_cmd
, obj
);
8921 static struct drm_framebuffer
*
8922 mode_fits_in_fbdev(struct drm_device
*dev
,
8923 struct drm_display_mode
*mode
)
8925 #ifdef CONFIG_DRM_I915_FBDEV
8926 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8927 struct drm_i915_gem_object
*obj
;
8928 struct drm_framebuffer
*fb
;
8930 if (!dev_priv
->fbdev
)
8933 if (!dev_priv
->fbdev
->fb
)
8936 obj
= dev_priv
->fbdev
->fb
->obj
;
8939 fb
= &dev_priv
->fbdev
->fb
->base
;
8940 if (fb
->pitches
[0] < intel_framebuffer_pitch_for_width(mode
->hdisplay
,
8941 fb
->bits_per_pixel
))
8944 if (obj
->base
.size
< mode
->vdisplay
* fb
->pitches
[0])
8953 bool intel_get_load_detect_pipe(struct drm_connector
*connector
,
8954 struct drm_display_mode
*mode
,
8955 struct intel_load_detect_pipe
*old
,
8956 struct drm_modeset_acquire_ctx
*ctx
)
8958 struct intel_crtc
*intel_crtc
;
8959 struct intel_encoder
*intel_encoder
=
8960 intel_attached_encoder(connector
);
8961 struct drm_crtc
*possible_crtc
;
8962 struct drm_encoder
*encoder
= &intel_encoder
->base
;
8963 struct drm_crtc
*crtc
= NULL
;
8964 struct drm_device
*dev
= encoder
->dev
;
8965 struct drm_framebuffer
*fb
;
8966 struct drm_mode_config
*config
= &dev
->mode_config
;
8967 struct drm_atomic_state
*state
= NULL
;
8968 struct drm_connector_state
*connector_state
;
8971 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
8972 connector
->base
.id
, connector
->name
,
8973 encoder
->base
.id
, encoder
->name
);
8976 ret
= drm_modeset_lock(&config
->connection_mutex
, ctx
);
8981 * Algorithm gets a little messy:
8983 * - if the connector already has an assigned crtc, use it (but make
8984 * sure it's on first)
8986 * - try to find the first unused crtc that can drive this connector,
8987 * and use that if we find one
8990 /* See if we already have a CRTC for this connector */
8991 if (encoder
->crtc
) {
8992 crtc
= encoder
->crtc
;
8994 ret
= drm_modeset_lock(&crtc
->mutex
, ctx
);
8997 ret
= drm_modeset_lock(&crtc
->primary
->mutex
, ctx
);
9001 old
->dpms_mode
= connector
->dpms
;
9002 old
->load_detect_temp
= false;
9004 /* Make sure the crtc and connector are running */
9005 if (connector
->dpms
!= DRM_MODE_DPMS_ON
)
9006 connector
->funcs
->dpms(connector
, DRM_MODE_DPMS_ON
);
9011 /* Find an unused one (if possible) */
9012 for_each_crtc(dev
, possible_crtc
) {
9014 if (!(encoder
->possible_crtcs
& (1 << i
)))
9016 if (possible_crtc
->state
->enable
)
9018 /* This can occur when applying the pipe A quirk on resume. */
9019 if (to_intel_crtc(possible_crtc
)->new_enabled
)
9022 crtc
= possible_crtc
;
9027 * If we didn't find an unused CRTC, don't use any.
9030 DRM_DEBUG_KMS("no pipe available for load-detect\n");
9034 ret
= drm_modeset_lock(&crtc
->mutex
, ctx
);
9037 ret
= drm_modeset_lock(&crtc
->primary
->mutex
, ctx
);
9040 intel_encoder
->new_crtc
= to_intel_crtc(crtc
);
9041 to_intel_connector(connector
)->new_encoder
= intel_encoder
;
9043 intel_crtc
= to_intel_crtc(crtc
);
9044 intel_crtc
->new_enabled
= true;
9045 intel_crtc
->new_config
= intel_crtc
->config
;
9046 old
->dpms_mode
= connector
->dpms
;
9047 old
->load_detect_temp
= true;
9048 old
->release_fb
= NULL
;
9050 state
= drm_atomic_state_alloc(dev
);
9054 state
->acquire_ctx
= ctx
;
9056 connector_state
= drm_atomic_get_connector_state(state
, connector
);
9057 if (IS_ERR(connector_state
)) {
9058 ret
= PTR_ERR(connector_state
);
9062 connector_state
->crtc
= crtc
;
9063 connector_state
->best_encoder
= &intel_encoder
->base
;
9066 mode
= &load_detect_mode
;
9068 /* We need a framebuffer large enough to accommodate all accesses
9069 * that the plane may generate whilst we perform load detection.
9070 * We can not rely on the fbcon either being present (we get called
9071 * during its initialisation to detect all boot displays, or it may
9072 * not even exist) or that it is large enough to satisfy the
9075 fb
= mode_fits_in_fbdev(dev
, mode
);
9077 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
9078 fb
= intel_framebuffer_create_for_mode(dev
, mode
, 24, 32);
9079 old
->release_fb
= fb
;
9081 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
9083 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
9087 if (intel_set_mode(crtc
, mode
, 0, 0, fb
, state
)) {
9088 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
9089 if (old
->release_fb
)
9090 old
->release_fb
->funcs
->destroy(old
->release_fb
);
9093 crtc
->primary
->crtc
= crtc
;
9095 /* let the connector get through one full cycle before testing */
9096 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
9100 intel_crtc
->new_enabled
= crtc
->state
->enable
;
9101 if (intel_crtc
->new_enabled
)
9102 intel_crtc
->new_config
= intel_crtc
->config
;
9104 intel_crtc
->new_config
= NULL
;
9107 drm_atomic_state_free(state
);
9111 if (ret
== -EDEADLK
) {
9112 drm_modeset_backoff(ctx
);
9119 void intel_release_load_detect_pipe(struct drm_connector
*connector
,
9120 struct intel_load_detect_pipe
*old
,
9121 struct drm_modeset_acquire_ctx
*ctx
)
9123 struct drm_device
*dev
= connector
->dev
;
9124 struct intel_encoder
*intel_encoder
=
9125 intel_attached_encoder(connector
);
9126 struct drm_encoder
*encoder
= &intel_encoder
->base
;
9127 struct drm_crtc
*crtc
= encoder
->crtc
;
9128 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9129 struct drm_atomic_state
*state
;
9130 struct drm_connector_state
*connector_state
;
9132 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
9133 connector
->base
.id
, connector
->name
,
9134 encoder
->base
.id
, encoder
->name
);
9136 if (old
->load_detect_temp
) {
9137 state
= drm_atomic_state_alloc(dev
);
9141 state
->acquire_ctx
= ctx
;
9143 connector_state
= drm_atomic_get_connector_state(state
, connector
);
9144 if (IS_ERR(connector_state
))
9147 to_intel_connector(connector
)->new_encoder
= NULL
;
9148 intel_encoder
->new_crtc
= NULL
;
9149 intel_crtc
->new_enabled
= false;
9150 intel_crtc
->new_config
= NULL
;
9152 connector_state
->best_encoder
= NULL
;
9153 connector_state
->crtc
= NULL
;
9155 intel_set_mode(crtc
, NULL
, 0, 0, NULL
, state
);
9157 drm_atomic_state_free(state
);
9159 if (old
->release_fb
) {
9160 drm_framebuffer_unregister_private(old
->release_fb
);
9161 drm_framebuffer_unreference(old
->release_fb
);
9167 /* Switch crtc and encoder back off if necessary */
9168 if (old
->dpms_mode
!= DRM_MODE_DPMS_ON
)
9169 connector
->funcs
->dpms(connector
, old
->dpms_mode
);
9173 DRM_DEBUG_KMS("Couldn't release load detect pipe.\n");
9174 drm_atomic_state_free(state
);
9177 static int i9xx_pll_refclk(struct drm_device
*dev
,
9178 const struct intel_crtc_state
*pipe_config
)
9180 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9181 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
9183 if ((dpll
& PLL_REF_INPUT_MASK
) == PLLB_REF_INPUT_SPREADSPECTRUMIN
)
9184 return dev_priv
->vbt
.lvds_ssc_freq
;
9185 else if (HAS_PCH_SPLIT(dev
))
9187 else if (!IS_GEN2(dev
))
9193 /* Returns the clock of the currently programmed mode of the given pipe. */
9194 static void i9xx_crtc_clock_get(struct intel_crtc
*crtc
,
9195 struct intel_crtc_state
*pipe_config
)
9197 struct drm_device
*dev
= crtc
->base
.dev
;
9198 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9199 int pipe
= pipe_config
->cpu_transcoder
;
9200 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
9202 intel_clock_t clock
;
9203 int refclk
= i9xx_pll_refclk(dev
, pipe_config
);
9205 if ((dpll
& DISPLAY_RATE_SELECT_FPA1
) == 0)
9206 fp
= pipe_config
->dpll_hw_state
.fp0
;
9208 fp
= pipe_config
->dpll_hw_state
.fp1
;
9210 clock
.m1
= (fp
& FP_M1_DIV_MASK
) >> FP_M1_DIV_SHIFT
;
9211 if (IS_PINEVIEW(dev
)) {
9212 clock
.n
= ffs((fp
& FP_N_PINEVIEW_DIV_MASK
) >> FP_N_DIV_SHIFT
) - 1;
9213 clock
.m2
= (fp
& FP_M2_PINEVIEW_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
9215 clock
.n
= (fp
& FP_N_DIV_MASK
) >> FP_N_DIV_SHIFT
;
9216 clock
.m2
= (fp
& FP_M2_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
9219 if (!IS_GEN2(dev
)) {
9220 if (IS_PINEVIEW(dev
))
9221 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW
) >>
9222 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
);
9224 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK
) >>
9225 DPLL_FPA01_P1_POST_DIV_SHIFT
);
9227 switch (dpll
& DPLL_MODE_MASK
) {
9228 case DPLLB_MODE_DAC_SERIAL
:
9229 clock
.p2
= dpll
& DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
?
9232 case DPLLB_MODE_LVDS
:
9233 clock
.p2
= dpll
& DPLLB_LVDS_P2_CLOCK_DIV_7
?
9237 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
9238 "mode\n", (int)(dpll
& DPLL_MODE_MASK
));
9242 if (IS_PINEVIEW(dev
))
9243 pineview_clock(refclk
, &clock
);
9245 i9xx_clock(refclk
, &clock
);
9247 u32 lvds
= IS_I830(dev
) ? 0 : I915_READ(LVDS
);
9248 bool is_lvds
= (pipe
== 1) && (lvds
& LVDS_PORT_EN
);
9251 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS
) >>
9252 DPLL_FPA01_P1_POST_DIV_SHIFT
);
9254 if (lvds
& LVDS_CLKB_POWER_UP
)
9259 if (dpll
& PLL_P1_DIVIDE_BY_TWO
)
9262 clock
.p1
= ((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830
) >>
9263 DPLL_FPA01_P1_POST_DIV_SHIFT
) + 2;
9265 if (dpll
& PLL_P2_DIVIDE_BY_4
)
9271 i9xx_clock(refclk
, &clock
);
9275 * This value includes pixel_multiplier. We will use
9276 * port_clock to compute adjusted_mode.crtc_clock in the
9277 * encoder's get_config() function.
9279 pipe_config
->port_clock
= clock
.dot
;
9282 int intel_dotclock_calculate(int link_freq
,
9283 const struct intel_link_m_n
*m_n
)
9286 * The calculation for the data clock is:
9287 * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp
9288 * But we want to avoid losing precison if possible, so:
9289 * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp))
9291 * and the link clock is simpler:
9292 * link_clock = (m * link_clock) / n
9298 return div_u64((u64
)m_n
->link_m
* link_freq
, m_n
->link_n
);
9301 static void ironlake_pch_clock_get(struct intel_crtc
*crtc
,
9302 struct intel_crtc_state
*pipe_config
)
9304 struct drm_device
*dev
= crtc
->base
.dev
;
9306 /* read out port_clock from the DPLL */
9307 i9xx_crtc_clock_get(crtc
, pipe_config
);
9310 * This value does not include pixel_multiplier.
9311 * We will check that port_clock and adjusted_mode.crtc_clock
9312 * agree once we know their relationship in the encoder's
9313 * get_config() function.
9315 pipe_config
->base
.adjusted_mode
.crtc_clock
=
9316 intel_dotclock_calculate(intel_fdi_link_freq(dev
) * 10000,
9317 &pipe_config
->fdi_m_n
);
9320 /** Returns the currently programmed mode of the given pipe. */
9321 struct drm_display_mode
*intel_crtc_mode_get(struct drm_device
*dev
,
9322 struct drm_crtc
*crtc
)
9324 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9325 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9326 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
9327 struct drm_display_mode
*mode
;
9328 struct intel_crtc_state pipe_config
;
9329 int htot
= I915_READ(HTOTAL(cpu_transcoder
));
9330 int hsync
= I915_READ(HSYNC(cpu_transcoder
));
9331 int vtot
= I915_READ(VTOTAL(cpu_transcoder
));
9332 int vsync
= I915_READ(VSYNC(cpu_transcoder
));
9333 enum pipe pipe
= intel_crtc
->pipe
;
9335 mode
= kzalloc(sizeof(*mode
), GFP_KERNEL
);
9340 * Construct a pipe_config sufficient for getting the clock info
9341 * back out of crtc_clock_get.
9343 * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need
9344 * to use a real value here instead.
9346 pipe_config
.cpu_transcoder
= (enum transcoder
) pipe
;
9347 pipe_config
.pixel_multiplier
= 1;
9348 pipe_config
.dpll_hw_state
.dpll
= I915_READ(DPLL(pipe
));
9349 pipe_config
.dpll_hw_state
.fp0
= I915_READ(FP0(pipe
));
9350 pipe_config
.dpll_hw_state
.fp1
= I915_READ(FP1(pipe
));
9351 i9xx_crtc_clock_get(intel_crtc
, &pipe_config
);
9353 mode
->clock
= pipe_config
.port_clock
/ pipe_config
.pixel_multiplier
;
9354 mode
->hdisplay
= (htot
& 0xffff) + 1;
9355 mode
->htotal
= ((htot
& 0xffff0000) >> 16) + 1;
9356 mode
->hsync_start
= (hsync
& 0xffff) + 1;
9357 mode
->hsync_end
= ((hsync
& 0xffff0000) >> 16) + 1;
9358 mode
->vdisplay
= (vtot
& 0xffff) + 1;
9359 mode
->vtotal
= ((vtot
& 0xffff0000) >> 16) + 1;
9360 mode
->vsync_start
= (vsync
& 0xffff) + 1;
9361 mode
->vsync_end
= ((vsync
& 0xffff0000) >> 16) + 1;
9363 drm_mode_set_name(mode
);
9368 static void intel_decrease_pllclock(struct drm_crtc
*crtc
)
9370 struct drm_device
*dev
= crtc
->dev
;
9371 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9372 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9374 if (!HAS_GMCH_DISPLAY(dev
))
9377 if (!dev_priv
->lvds_downclock_avail
)
9381 * Since this is called by a timer, we should never get here in
9384 if (!HAS_PIPE_CXSR(dev
) && intel_crtc
->lowfreq_avail
) {
9385 int pipe
= intel_crtc
->pipe
;
9386 int dpll_reg
= DPLL(pipe
);
9389 DRM_DEBUG_DRIVER("downclocking LVDS\n");
9391 assert_panel_unlocked(dev_priv
, pipe
);
9393 dpll
= I915_READ(dpll_reg
);
9394 dpll
|= DISPLAY_RATE_SELECT_FPA1
;
9395 I915_WRITE(dpll_reg
, dpll
);
9396 intel_wait_for_vblank(dev
, pipe
);
9397 dpll
= I915_READ(dpll_reg
);
9398 if (!(dpll
& DISPLAY_RATE_SELECT_FPA1
))
9399 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
9404 void intel_mark_busy(struct drm_device
*dev
)
9406 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9408 if (dev_priv
->mm
.busy
)
9411 intel_runtime_pm_get(dev_priv
);
9412 i915_update_gfx_val(dev_priv
);
9413 if (INTEL_INFO(dev
)->gen
>= 6)
9414 gen6_rps_busy(dev_priv
);
9415 dev_priv
->mm
.busy
= true;
9418 void intel_mark_idle(struct drm_device
*dev
)
9420 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9421 struct drm_crtc
*crtc
;
9423 if (!dev_priv
->mm
.busy
)
9426 dev_priv
->mm
.busy
= false;
9428 for_each_crtc(dev
, crtc
) {
9429 if (!crtc
->primary
->fb
)
9432 intel_decrease_pllclock(crtc
);
9435 if (INTEL_INFO(dev
)->gen
>= 6)
9436 gen6_rps_idle(dev
->dev_private
);
9438 intel_runtime_pm_put(dev_priv
);
9441 static void intel_crtc_set_state(struct intel_crtc
*crtc
,
9442 struct intel_crtc_state
*crtc_state
)
9444 kfree(crtc
->config
);
9445 crtc
->config
= crtc_state
;
9446 crtc
->base
.state
= &crtc_state
->base
;
9449 static void intel_crtc_destroy(struct drm_crtc
*crtc
)
9451 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9452 struct drm_device
*dev
= crtc
->dev
;
9453 struct intel_unpin_work
*work
;
9455 spin_lock_irq(&dev
->event_lock
);
9456 work
= intel_crtc
->unpin_work
;
9457 intel_crtc
->unpin_work
= NULL
;
9458 spin_unlock_irq(&dev
->event_lock
);
9461 cancel_work_sync(&work
->work
);
9465 intel_crtc_set_state(intel_crtc
, NULL
);
9466 drm_crtc_cleanup(crtc
);
9471 static void intel_unpin_work_fn(struct work_struct
*__work
)
9473 struct intel_unpin_work
*work
=
9474 container_of(__work
, struct intel_unpin_work
, work
);
9475 struct drm_device
*dev
= work
->crtc
->dev
;
9476 enum pipe pipe
= to_intel_crtc(work
->crtc
)->pipe
;
9478 mutex_lock(&dev
->struct_mutex
);
9479 intel_unpin_fb_obj(work
->old_fb
, work
->crtc
->primary
->state
);
9480 drm_gem_object_unreference(&work
->pending_flip_obj
->base
);
9482 intel_fbc_update(dev
);
9484 if (work
->flip_queued_req
)
9485 i915_gem_request_assign(&work
->flip_queued_req
, NULL
);
9486 mutex_unlock(&dev
->struct_mutex
);
9488 intel_frontbuffer_flip_complete(dev
, INTEL_FRONTBUFFER_PRIMARY(pipe
));
9489 drm_framebuffer_unreference(work
->old_fb
);
9491 BUG_ON(atomic_read(&to_intel_crtc(work
->crtc
)->unpin_work_count
) == 0);
9492 atomic_dec(&to_intel_crtc(work
->crtc
)->unpin_work_count
);
9497 static void do_intel_finish_page_flip(struct drm_device
*dev
,
9498 struct drm_crtc
*crtc
)
9500 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9501 struct intel_unpin_work
*work
;
9502 unsigned long flags
;
9504 /* Ignore early vblank irqs */
9505 if (intel_crtc
== NULL
)
9509 * This is called both by irq handlers and the reset code (to complete
9510 * lost pageflips) so needs the full irqsave spinlocks.
9512 spin_lock_irqsave(&dev
->event_lock
, flags
);
9513 work
= intel_crtc
->unpin_work
;
9515 /* Ensure we don't miss a work->pending update ... */
9518 if (work
== NULL
|| atomic_read(&work
->pending
) < INTEL_FLIP_COMPLETE
) {
9519 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9523 page_flip_completed(intel_crtc
);
9525 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9528 void intel_finish_page_flip(struct drm_device
*dev
, int pipe
)
9530 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9531 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
9533 do_intel_finish_page_flip(dev
, crtc
);
9536 void intel_finish_page_flip_plane(struct drm_device
*dev
, int plane
)
9538 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9539 struct drm_crtc
*crtc
= dev_priv
->plane_to_crtc_mapping
[plane
];
9541 do_intel_finish_page_flip(dev
, crtc
);
9544 /* Is 'a' after or equal to 'b'? */
9545 static bool g4x_flip_count_after_eq(u32 a
, u32 b
)
9547 return !((a
- b
) & 0x80000000);
9550 static bool page_flip_finished(struct intel_crtc
*crtc
)
9552 struct drm_device
*dev
= crtc
->base
.dev
;
9553 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9555 if (i915_reset_in_progress(&dev_priv
->gpu_error
) ||
9556 crtc
->reset_counter
!= atomic_read(&dev_priv
->gpu_error
.reset_counter
))
9560 * The relevant registers doen't exist on pre-ctg.
9561 * As the flip done interrupt doesn't trigger for mmio
9562 * flips on gmch platforms, a flip count check isn't
9563 * really needed there. But since ctg has the registers,
9564 * include it in the check anyway.
9566 if (INTEL_INFO(dev
)->gen
< 5 && !IS_G4X(dev
))
9570 * A DSPSURFLIVE check isn't enough in case the mmio and CS flips
9571 * used the same base address. In that case the mmio flip might
9572 * have completed, but the CS hasn't even executed the flip yet.
9574 * A flip count check isn't enough as the CS might have updated
9575 * the base address just after start of vblank, but before we
9576 * managed to process the interrupt. This means we'd complete the
9579 * Combining both checks should get us a good enough result. It may
9580 * still happen that the CS flip has been executed, but has not
9581 * yet actually completed. But in case the base address is the same
9582 * anyway, we don't really care.
9584 return (I915_READ(DSPSURFLIVE(crtc
->plane
)) & ~0xfff) ==
9585 crtc
->unpin_work
->gtt_offset
&&
9586 g4x_flip_count_after_eq(I915_READ(PIPE_FLIPCOUNT_GM45(crtc
->pipe
)),
9587 crtc
->unpin_work
->flip_count
);
9590 void intel_prepare_page_flip(struct drm_device
*dev
, int plane
)
9592 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9593 struct intel_crtc
*intel_crtc
=
9594 to_intel_crtc(dev_priv
->plane_to_crtc_mapping
[plane
]);
9595 unsigned long flags
;
9599 * This is called both by irq handlers and the reset code (to complete
9600 * lost pageflips) so needs the full irqsave spinlocks.
9602 * NB: An MMIO update of the plane base pointer will also
9603 * generate a page-flip completion irq, i.e. every modeset
9604 * is also accompanied by a spurious intel_prepare_page_flip().
9606 spin_lock_irqsave(&dev
->event_lock
, flags
);
9607 if (intel_crtc
->unpin_work
&& page_flip_finished(intel_crtc
))
9608 atomic_inc_not_zero(&intel_crtc
->unpin_work
->pending
);
9609 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9612 static inline void intel_mark_page_flip_active(struct intel_crtc
*intel_crtc
)
9614 /* Ensure that the work item is consistent when activating it ... */
9616 atomic_set(&intel_crtc
->unpin_work
->pending
, INTEL_FLIP_PENDING
);
9617 /* and that it is marked active as soon as the irq could fire. */
9621 static int intel_gen2_queue_flip(struct drm_device
*dev
,
9622 struct drm_crtc
*crtc
,
9623 struct drm_framebuffer
*fb
,
9624 struct drm_i915_gem_object
*obj
,
9625 struct intel_engine_cs
*ring
,
9628 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9632 ret
= intel_ring_begin(ring
, 6);
9636 /* Can't queue multiple flips, so wait for the previous
9637 * one to finish before executing the next.
9639 if (intel_crtc
->plane
)
9640 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
9642 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
9643 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
9644 intel_ring_emit(ring
, MI_NOOP
);
9645 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
9646 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
9647 intel_ring_emit(ring
, fb
->pitches
[0]);
9648 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9649 intel_ring_emit(ring
, 0); /* aux display base address, unused */
9651 intel_mark_page_flip_active(intel_crtc
);
9652 __intel_ring_advance(ring
);
9656 static int intel_gen3_queue_flip(struct drm_device
*dev
,
9657 struct drm_crtc
*crtc
,
9658 struct drm_framebuffer
*fb
,
9659 struct drm_i915_gem_object
*obj
,
9660 struct intel_engine_cs
*ring
,
9663 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9667 ret
= intel_ring_begin(ring
, 6);
9671 if (intel_crtc
->plane
)
9672 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
9674 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
9675 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
9676 intel_ring_emit(ring
, MI_NOOP
);
9677 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
|
9678 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
9679 intel_ring_emit(ring
, fb
->pitches
[0]);
9680 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9681 intel_ring_emit(ring
, MI_NOOP
);
9683 intel_mark_page_flip_active(intel_crtc
);
9684 __intel_ring_advance(ring
);
9688 static int intel_gen4_queue_flip(struct drm_device
*dev
,
9689 struct drm_crtc
*crtc
,
9690 struct drm_framebuffer
*fb
,
9691 struct drm_i915_gem_object
*obj
,
9692 struct intel_engine_cs
*ring
,
9695 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9696 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9697 uint32_t pf
, pipesrc
;
9700 ret
= intel_ring_begin(ring
, 4);
9704 /* i965+ uses the linear or tiled offsets from the
9705 * Display Registers (which do not change across a page-flip)
9706 * so we need only reprogram the base address.
9708 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
9709 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
9710 intel_ring_emit(ring
, fb
->pitches
[0]);
9711 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
|
9714 /* XXX Enabling the panel-fitter across page-flip is so far
9715 * untested on non-native modes, so ignore it for now.
9716 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
9719 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
9720 intel_ring_emit(ring
, pf
| pipesrc
);
9722 intel_mark_page_flip_active(intel_crtc
);
9723 __intel_ring_advance(ring
);
9727 static int intel_gen6_queue_flip(struct drm_device
*dev
,
9728 struct drm_crtc
*crtc
,
9729 struct drm_framebuffer
*fb
,
9730 struct drm_i915_gem_object
*obj
,
9731 struct intel_engine_cs
*ring
,
9734 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9735 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9736 uint32_t pf
, pipesrc
;
9739 ret
= intel_ring_begin(ring
, 4);
9743 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
9744 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
9745 intel_ring_emit(ring
, fb
->pitches
[0] | obj
->tiling_mode
);
9746 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9748 /* Contrary to the suggestions in the documentation,
9749 * "Enable Panel Fitter" does not seem to be required when page
9750 * flipping with a non-native mode, and worse causes a normal
9752 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
9755 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
9756 intel_ring_emit(ring
, pf
| pipesrc
);
9758 intel_mark_page_flip_active(intel_crtc
);
9759 __intel_ring_advance(ring
);
9763 static int intel_gen7_queue_flip(struct drm_device
*dev
,
9764 struct drm_crtc
*crtc
,
9765 struct drm_framebuffer
*fb
,
9766 struct drm_i915_gem_object
*obj
,
9767 struct intel_engine_cs
*ring
,
9770 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9771 uint32_t plane_bit
= 0;
9774 switch (intel_crtc
->plane
) {
9776 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_A
;
9779 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_B
;
9782 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_C
;
9785 WARN_ONCE(1, "unknown plane in flip command\n");
9790 if (ring
->id
== RCS
) {
9793 * On Gen 8, SRM is now taking an extra dword to accommodate
9794 * 48bits addresses, and we need a NOOP for the batch size to
9802 * BSpec MI_DISPLAY_FLIP for IVB:
9803 * "The full packet must be contained within the same cache line."
9805 * Currently the LRI+SRM+MI_DISPLAY_FLIP all fit within the same
9806 * cacheline, if we ever start emitting more commands before
9807 * the MI_DISPLAY_FLIP we may need to first emit everything else,
9808 * then do the cacheline alignment, and finally emit the
9811 ret
= intel_ring_cacheline_align(ring
);
9815 ret
= intel_ring_begin(ring
, len
);
9819 /* Unmask the flip-done completion message. Note that the bspec says that
9820 * we should do this for both the BCS and RCS, and that we must not unmask
9821 * more than one flip event at any time (or ensure that one flip message
9822 * can be sent by waiting for flip-done prior to queueing new flips).
9823 * Experimentation says that BCS works despite DERRMR masking all
9824 * flip-done completion events and that unmasking all planes at once
9825 * for the RCS also doesn't appear to drop events. Setting the DERRMR
9826 * to zero does lead to lockups within MI_DISPLAY_FLIP.
9828 if (ring
->id
== RCS
) {
9829 intel_ring_emit(ring
, MI_LOAD_REGISTER_IMM(1));
9830 intel_ring_emit(ring
, DERRMR
);
9831 intel_ring_emit(ring
, ~(DERRMR_PIPEA_PRI_FLIP_DONE
|
9832 DERRMR_PIPEB_PRI_FLIP_DONE
|
9833 DERRMR_PIPEC_PRI_FLIP_DONE
));
9835 intel_ring_emit(ring
, MI_STORE_REGISTER_MEM_GEN8(1) |
9836 MI_SRM_LRM_GLOBAL_GTT
);
9838 intel_ring_emit(ring
, MI_STORE_REGISTER_MEM(1) |
9839 MI_SRM_LRM_GLOBAL_GTT
);
9840 intel_ring_emit(ring
, DERRMR
);
9841 intel_ring_emit(ring
, ring
->scratch
.gtt_offset
+ 256);
9843 intel_ring_emit(ring
, 0);
9844 intel_ring_emit(ring
, MI_NOOP
);
9848 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
| plane_bit
);
9849 intel_ring_emit(ring
, (fb
->pitches
[0] | obj
->tiling_mode
));
9850 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9851 intel_ring_emit(ring
, (MI_NOOP
));
9853 intel_mark_page_flip_active(intel_crtc
);
9854 __intel_ring_advance(ring
);
9858 static bool use_mmio_flip(struct intel_engine_cs
*ring
,
9859 struct drm_i915_gem_object
*obj
)
9862 * This is not being used for older platforms, because
9863 * non-availability of flip done interrupt forces us to use
9864 * CS flips. Older platforms derive flip done using some clever
9865 * tricks involving the flip_pending status bits and vblank irqs.
9866 * So using MMIO flips there would disrupt this mechanism.
9872 if (INTEL_INFO(ring
->dev
)->gen
< 5)
9875 if (i915
.use_mmio_flip
< 0)
9877 else if (i915
.use_mmio_flip
> 0)
9879 else if (i915
.enable_execlists
)
9882 return ring
!= i915_gem_request_get_ring(obj
->last_read_req
);
9885 static void skl_do_mmio_flip(struct intel_crtc
*intel_crtc
)
9887 struct drm_device
*dev
= intel_crtc
->base
.dev
;
9888 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9889 struct drm_framebuffer
*fb
= intel_crtc
->base
.primary
->fb
;
9890 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
9891 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
9892 const enum pipe pipe
= intel_crtc
->pipe
;
9895 ctl
= I915_READ(PLANE_CTL(pipe
, 0));
9896 ctl
&= ~PLANE_CTL_TILED_MASK
;
9897 if (obj
->tiling_mode
== I915_TILING_X
)
9898 ctl
|= PLANE_CTL_TILED_X
;
9901 * The stride is either expressed as a multiple of 64 bytes chunks for
9902 * linear buffers or in number of tiles for tiled buffers.
9904 stride
= fb
->pitches
[0] >> 6;
9905 if (obj
->tiling_mode
== I915_TILING_X
)
9906 stride
= fb
->pitches
[0] >> 9; /* X tiles are 512 bytes wide */
9909 * Both PLANE_CTL and PLANE_STRIDE are not updated on vblank but on
9910 * PLANE_SURF updates, the update is then guaranteed to be atomic.
9912 I915_WRITE(PLANE_CTL(pipe
, 0), ctl
);
9913 I915_WRITE(PLANE_STRIDE(pipe
, 0), stride
);
9915 I915_WRITE(PLANE_SURF(pipe
, 0), intel_crtc
->unpin_work
->gtt_offset
);
9916 POSTING_READ(PLANE_SURF(pipe
, 0));
9919 static void ilk_do_mmio_flip(struct intel_crtc
*intel_crtc
)
9921 struct drm_device
*dev
= intel_crtc
->base
.dev
;
9922 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9923 struct intel_framebuffer
*intel_fb
=
9924 to_intel_framebuffer(intel_crtc
->base
.primary
->fb
);
9925 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
9929 reg
= DSPCNTR(intel_crtc
->plane
);
9930 dspcntr
= I915_READ(reg
);
9932 if (obj
->tiling_mode
!= I915_TILING_NONE
)
9933 dspcntr
|= DISPPLANE_TILED
;
9935 dspcntr
&= ~DISPPLANE_TILED
;
9937 I915_WRITE(reg
, dspcntr
);
9939 I915_WRITE(DSPSURF(intel_crtc
->plane
),
9940 intel_crtc
->unpin_work
->gtt_offset
);
9941 POSTING_READ(DSPSURF(intel_crtc
->plane
));
9946 * XXX: This is the temporary way to update the plane registers until we get
9947 * around to using the usual plane update functions for MMIO flips
9949 static void intel_do_mmio_flip(struct intel_crtc
*intel_crtc
)
9951 struct drm_device
*dev
= intel_crtc
->base
.dev
;
9953 u32 start_vbl_count
;
9955 intel_mark_page_flip_active(intel_crtc
);
9957 atomic_update
= intel_pipe_update_start(intel_crtc
, &start_vbl_count
);
9959 if (INTEL_INFO(dev
)->gen
>= 9)
9960 skl_do_mmio_flip(intel_crtc
);
9962 /* use_mmio_flip() retricts MMIO flips to ilk+ */
9963 ilk_do_mmio_flip(intel_crtc
);
9966 intel_pipe_update_end(intel_crtc
, start_vbl_count
);
9969 static void intel_mmio_flip_work_func(struct work_struct
*work
)
9971 struct intel_crtc
*crtc
=
9972 container_of(work
, struct intel_crtc
, mmio_flip
.work
);
9973 struct intel_mmio_flip
*mmio_flip
;
9975 mmio_flip
= &crtc
->mmio_flip
;
9977 WARN_ON(__i915_wait_request(mmio_flip
->req
,
9978 crtc
->reset_counter
,
9979 false, NULL
, NULL
) != 0);
9981 intel_do_mmio_flip(crtc
);
9982 if (mmio_flip
->req
) {
9983 mutex_lock(&crtc
->base
.dev
->struct_mutex
);
9984 i915_gem_request_assign(&mmio_flip
->req
, NULL
);
9985 mutex_unlock(&crtc
->base
.dev
->struct_mutex
);
9989 static int intel_queue_mmio_flip(struct drm_device
*dev
,
9990 struct drm_crtc
*crtc
,
9991 struct drm_framebuffer
*fb
,
9992 struct drm_i915_gem_object
*obj
,
9993 struct intel_engine_cs
*ring
,
9996 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9998 i915_gem_request_assign(&intel_crtc
->mmio_flip
.req
,
9999 obj
->last_write_req
);
10001 schedule_work(&intel_crtc
->mmio_flip
.work
);
10006 static int intel_default_queue_flip(struct drm_device
*dev
,
10007 struct drm_crtc
*crtc
,
10008 struct drm_framebuffer
*fb
,
10009 struct drm_i915_gem_object
*obj
,
10010 struct intel_engine_cs
*ring
,
10016 static bool __intel_pageflip_stall_check(struct drm_device
*dev
,
10017 struct drm_crtc
*crtc
)
10019 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10020 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10021 struct intel_unpin_work
*work
= intel_crtc
->unpin_work
;
10024 if (atomic_read(&work
->pending
) >= INTEL_FLIP_COMPLETE
)
10027 if (!work
->enable_stall_check
)
10030 if (work
->flip_ready_vblank
== 0) {
10031 if (work
->flip_queued_req
&&
10032 !i915_gem_request_completed(work
->flip_queued_req
, true))
10035 work
->flip_ready_vblank
= drm_crtc_vblank_count(crtc
);
10038 if (drm_crtc_vblank_count(crtc
) - work
->flip_ready_vblank
< 3)
10041 /* Potential stall - if we see that the flip has happened,
10042 * assume a missed interrupt. */
10043 if (INTEL_INFO(dev
)->gen
>= 4)
10044 addr
= I915_HI_DISPBASE(I915_READ(DSPSURF(intel_crtc
->plane
)));
10046 addr
= I915_READ(DSPADDR(intel_crtc
->plane
));
10048 /* There is a potential issue here with a false positive after a flip
10049 * to the same address. We could address this by checking for a
10050 * non-incrementing frame counter.
10052 return addr
== work
->gtt_offset
;
10055 void intel_check_page_flip(struct drm_device
*dev
, int pipe
)
10057 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10058 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
10059 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10061 WARN_ON(!in_interrupt());
10066 spin_lock(&dev
->event_lock
);
10067 if (intel_crtc
->unpin_work
&& __intel_pageflip_stall_check(dev
, crtc
)) {
10068 WARN_ONCE(1, "Kicking stuck page flip: queued at %d, now %d\n",
10069 intel_crtc
->unpin_work
->flip_queued_vblank
,
10070 drm_vblank_count(dev
, pipe
));
10071 page_flip_completed(intel_crtc
);
10073 spin_unlock(&dev
->event_lock
);
10076 static int intel_crtc_page_flip(struct drm_crtc
*crtc
,
10077 struct drm_framebuffer
*fb
,
10078 struct drm_pending_vblank_event
*event
,
10079 uint32_t page_flip_flags
)
10081 struct drm_device
*dev
= crtc
->dev
;
10082 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10083 struct drm_framebuffer
*old_fb
= crtc
->primary
->fb
;
10084 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
10085 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10086 struct drm_plane
*primary
= crtc
->primary
;
10087 enum pipe pipe
= intel_crtc
->pipe
;
10088 struct intel_unpin_work
*work
;
10089 struct intel_engine_cs
*ring
;
10093 * drm_mode_page_flip_ioctl() should already catch this, but double
10094 * check to be safe. In the future we may enable pageflipping from
10095 * a disabled primary plane.
10097 if (WARN_ON(intel_fb_obj(old_fb
) == NULL
))
10100 /* Can't change pixel format via MI display flips. */
10101 if (fb
->pixel_format
!= crtc
->primary
->fb
->pixel_format
)
10105 * TILEOFF/LINOFF registers can't be changed via MI display flips.
10106 * Note that pitch changes could also affect these register.
10108 if (INTEL_INFO(dev
)->gen
> 3 &&
10109 (fb
->offsets
[0] != crtc
->primary
->fb
->offsets
[0] ||
10110 fb
->pitches
[0] != crtc
->primary
->fb
->pitches
[0]))
10113 if (i915_terminally_wedged(&dev_priv
->gpu_error
))
10116 work
= kzalloc(sizeof(*work
), GFP_KERNEL
);
10120 work
->event
= event
;
10122 work
->old_fb
= old_fb
;
10123 INIT_WORK(&work
->work
, intel_unpin_work_fn
);
10125 ret
= drm_crtc_vblank_get(crtc
);
10129 /* We borrow the event spin lock for protecting unpin_work */
10130 spin_lock_irq(&dev
->event_lock
);
10131 if (intel_crtc
->unpin_work
) {
10132 /* Before declaring the flip queue wedged, check if
10133 * the hardware completed the operation behind our backs.
10135 if (__intel_pageflip_stall_check(dev
, crtc
)) {
10136 DRM_DEBUG_DRIVER("flip queue: previous flip completed, continuing\n");
10137 page_flip_completed(intel_crtc
);
10139 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
10140 spin_unlock_irq(&dev
->event_lock
);
10142 drm_crtc_vblank_put(crtc
);
10147 intel_crtc
->unpin_work
= work
;
10148 spin_unlock_irq(&dev
->event_lock
);
10150 if (atomic_read(&intel_crtc
->unpin_work_count
) >= 2)
10151 flush_workqueue(dev_priv
->wq
);
10153 /* Reference the objects for the scheduled work. */
10154 drm_framebuffer_reference(work
->old_fb
);
10155 drm_gem_object_reference(&obj
->base
);
10157 crtc
->primary
->fb
= fb
;
10158 update_state_fb(crtc
->primary
);
10160 work
->pending_flip_obj
= obj
;
10162 ret
= i915_mutex_lock_interruptible(dev
);
10166 atomic_inc(&intel_crtc
->unpin_work_count
);
10167 intel_crtc
->reset_counter
= atomic_read(&dev_priv
->gpu_error
.reset_counter
);
10169 if (INTEL_INFO(dev
)->gen
>= 5 || IS_G4X(dev
))
10170 work
->flip_count
= I915_READ(PIPE_FLIPCOUNT_GM45(pipe
)) + 1;
10172 if (IS_VALLEYVIEW(dev
)) {
10173 ring
= &dev_priv
->ring
[BCS
];
10174 if (obj
->tiling_mode
!= intel_fb_obj(work
->old_fb
)->tiling_mode
)
10175 /* vlv: DISPLAY_FLIP fails to change tiling */
10177 } else if (IS_IVYBRIDGE(dev
) || IS_HASWELL(dev
)) {
10178 ring
= &dev_priv
->ring
[BCS
];
10179 } else if (INTEL_INFO(dev
)->gen
>= 7) {
10180 ring
= i915_gem_request_get_ring(obj
->last_read_req
);
10181 if (ring
== NULL
|| ring
->id
!= RCS
)
10182 ring
= &dev_priv
->ring
[BCS
];
10184 ring
= &dev_priv
->ring
[RCS
];
10187 ret
= intel_pin_and_fence_fb_obj(crtc
->primary
, fb
,
10188 crtc
->primary
->state
, ring
);
10190 goto cleanup_pending
;
10192 work
->gtt_offset
= intel_plane_obj_offset(to_intel_plane(primary
), obj
)
10193 + intel_crtc
->dspaddr_offset
;
10195 if (use_mmio_flip(ring
, obj
)) {
10196 ret
= intel_queue_mmio_flip(dev
, crtc
, fb
, obj
, ring
,
10199 goto cleanup_unpin
;
10201 i915_gem_request_assign(&work
->flip_queued_req
,
10202 obj
->last_write_req
);
10204 ret
= dev_priv
->display
.queue_flip(dev
, crtc
, fb
, obj
, ring
,
10207 goto cleanup_unpin
;
10209 i915_gem_request_assign(&work
->flip_queued_req
,
10210 intel_ring_get_request(ring
));
10213 work
->flip_queued_vblank
= drm_crtc_vblank_count(crtc
);
10214 work
->enable_stall_check
= true;
10216 i915_gem_track_fb(intel_fb_obj(work
->old_fb
), obj
,
10217 INTEL_FRONTBUFFER_PRIMARY(pipe
));
10219 intel_fbc_disable(dev
);
10220 intel_frontbuffer_flip_prepare(dev
, INTEL_FRONTBUFFER_PRIMARY(pipe
));
10221 mutex_unlock(&dev
->struct_mutex
);
10223 trace_i915_flip_request(intel_crtc
->plane
, obj
);
10228 intel_unpin_fb_obj(fb
, crtc
->primary
->state
);
10230 atomic_dec(&intel_crtc
->unpin_work_count
);
10231 mutex_unlock(&dev
->struct_mutex
);
10233 crtc
->primary
->fb
= old_fb
;
10234 update_state_fb(crtc
->primary
);
10236 drm_gem_object_unreference_unlocked(&obj
->base
);
10237 drm_framebuffer_unreference(work
->old_fb
);
10239 spin_lock_irq(&dev
->event_lock
);
10240 intel_crtc
->unpin_work
= NULL
;
10241 spin_unlock_irq(&dev
->event_lock
);
10243 drm_crtc_vblank_put(crtc
);
10249 ret
= intel_plane_restore(primary
);
10250 if (ret
== 0 && event
) {
10251 spin_lock_irq(&dev
->event_lock
);
10252 drm_send_vblank_event(dev
, pipe
, event
);
10253 spin_unlock_irq(&dev
->event_lock
);
10259 static struct drm_crtc_helper_funcs intel_helper_funcs
= {
10260 .mode_set_base_atomic
= intel_pipe_set_base_atomic
,
10261 .load_lut
= intel_crtc_load_lut
,
10262 .atomic_begin
= intel_begin_crtc_commit
,
10263 .atomic_flush
= intel_finish_crtc_commit
,
10267 * intel_modeset_update_staged_output_state
10269 * Updates the staged output configuration state, e.g. after we've read out the
10270 * current hw state.
10272 static void intel_modeset_update_staged_output_state(struct drm_device
*dev
)
10274 struct intel_crtc
*crtc
;
10275 struct intel_encoder
*encoder
;
10276 struct intel_connector
*connector
;
10278 for_each_intel_connector(dev
, connector
) {
10279 connector
->new_encoder
=
10280 to_intel_encoder(connector
->base
.encoder
);
10283 for_each_intel_encoder(dev
, encoder
) {
10284 encoder
->new_crtc
=
10285 to_intel_crtc(encoder
->base
.crtc
);
10288 for_each_intel_crtc(dev
, crtc
) {
10289 crtc
->new_enabled
= crtc
->base
.state
->enable
;
10291 if (crtc
->new_enabled
)
10292 crtc
->new_config
= crtc
->config
;
10294 crtc
->new_config
= NULL
;
10298 /* Transitional helper to copy current connector/encoder state to
10299 * connector->state. This is needed so that code that is partially
10300 * converted to atomic does the right thing.
10302 static void intel_modeset_update_connector_atomic_state(struct drm_device
*dev
)
10304 struct intel_connector
*connector
;
10306 for_each_intel_connector(dev
, connector
) {
10307 if (connector
->base
.encoder
) {
10308 connector
->base
.state
->best_encoder
=
10309 connector
->base
.encoder
;
10310 connector
->base
.state
->crtc
=
10311 connector
->base
.encoder
->crtc
;
10313 connector
->base
.state
->best_encoder
= NULL
;
10314 connector
->base
.state
->crtc
= NULL
;
10320 * intel_modeset_commit_output_state
10322 * This function copies the stage display pipe configuration to the real one.
10324 static void intel_modeset_commit_output_state(struct drm_device
*dev
)
10326 struct intel_crtc
*crtc
;
10327 struct intel_encoder
*encoder
;
10328 struct intel_connector
*connector
;
10330 for_each_intel_connector(dev
, connector
) {
10331 connector
->base
.encoder
= &connector
->new_encoder
->base
;
10334 for_each_intel_encoder(dev
, encoder
) {
10335 encoder
->base
.crtc
= &encoder
->new_crtc
->base
;
10338 for_each_intel_crtc(dev
, crtc
) {
10339 crtc
->base
.state
->enable
= crtc
->new_enabled
;
10340 crtc
->base
.enabled
= crtc
->new_enabled
;
10343 intel_modeset_update_connector_atomic_state(dev
);
10347 connected_sink_compute_bpp(struct intel_connector
*connector
,
10348 struct intel_crtc_state
*pipe_config
)
10350 int bpp
= pipe_config
->pipe_bpp
;
10352 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n",
10353 connector
->base
.base
.id
,
10354 connector
->base
.name
);
10356 /* Don't use an invalid EDID bpc value */
10357 if (connector
->base
.display_info
.bpc
&&
10358 connector
->base
.display_info
.bpc
* 3 < bpp
) {
10359 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
10360 bpp
, connector
->base
.display_info
.bpc
*3);
10361 pipe_config
->pipe_bpp
= connector
->base
.display_info
.bpc
*3;
10364 /* Clamp bpp to 8 on screens without EDID 1.4 */
10365 if (connector
->base
.display_info
.bpc
== 0 && bpp
> 24) {
10366 DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
10368 pipe_config
->pipe_bpp
= 24;
10373 compute_baseline_pipe_bpp(struct intel_crtc
*crtc
,
10374 struct drm_framebuffer
*fb
,
10375 struct intel_crtc_state
*pipe_config
)
10377 struct drm_device
*dev
= crtc
->base
.dev
;
10378 struct drm_atomic_state
*state
;
10379 struct intel_connector
*connector
;
10382 switch (fb
->pixel_format
) {
10383 case DRM_FORMAT_C8
:
10384 bpp
= 8*3; /* since we go through a colormap */
10386 case DRM_FORMAT_XRGB1555
:
10387 case DRM_FORMAT_ARGB1555
:
10388 /* checked in intel_framebuffer_init already */
10389 if (WARN_ON(INTEL_INFO(dev
)->gen
> 3))
10391 case DRM_FORMAT_RGB565
:
10392 bpp
= 6*3; /* min is 18bpp */
10394 case DRM_FORMAT_XBGR8888
:
10395 case DRM_FORMAT_ABGR8888
:
10396 /* checked in intel_framebuffer_init already */
10397 if (WARN_ON(INTEL_INFO(dev
)->gen
< 4))
10399 case DRM_FORMAT_XRGB8888
:
10400 case DRM_FORMAT_ARGB8888
:
10403 case DRM_FORMAT_XRGB2101010
:
10404 case DRM_FORMAT_ARGB2101010
:
10405 case DRM_FORMAT_XBGR2101010
:
10406 case DRM_FORMAT_ABGR2101010
:
10407 /* checked in intel_framebuffer_init already */
10408 if (WARN_ON(INTEL_INFO(dev
)->gen
< 4))
10412 /* TODO: gen4+ supports 16 bpc floating point, too. */
10414 DRM_DEBUG_KMS("unsupported depth\n");
10418 pipe_config
->pipe_bpp
= bpp
;
10420 state
= pipe_config
->base
.state
;
10422 /* Clamp display bpp to EDID value */
10423 for (i
= 0; i
< state
->num_connector
; i
++) {
10424 if (!state
->connectors
[i
])
10427 connector
= to_intel_connector(state
->connectors
[i
]);
10428 if (state
->connector_states
[i
]->crtc
!= &crtc
->base
)
10431 connected_sink_compute_bpp(connector
, pipe_config
);
10437 static void intel_dump_crtc_timings(const struct drm_display_mode
*mode
)
10439 DRM_DEBUG_KMS("crtc timings: %d %d %d %d %d %d %d %d %d, "
10440 "type: 0x%x flags: 0x%x\n",
10442 mode
->crtc_hdisplay
, mode
->crtc_hsync_start
,
10443 mode
->crtc_hsync_end
, mode
->crtc_htotal
,
10444 mode
->crtc_vdisplay
, mode
->crtc_vsync_start
,
10445 mode
->crtc_vsync_end
, mode
->crtc_vtotal
, mode
->type
, mode
->flags
);
10448 static void intel_dump_pipe_config(struct intel_crtc
*crtc
,
10449 struct intel_crtc_state
*pipe_config
,
10450 const char *context
)
10452 DRM_DEBUG_KMS("[CRTC:%d]%s config for pipe %c\n", crtc
->base
.base
.id
,
10453 context
, pipe_name(crtc
->pipe
));
10455 DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config
->cpu_transcoder
));
10456 DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n",
10457 pipe_config
->pipe_bpp
, pipe_config
->dither
);
10458 DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
10459 pipe_config
->has_pch_encoder
,
10460 pipe_config
->fdi_lanes
,
10461 pipe_config
->fdi_m_n
.gmch_m
, pipe_config
->fdi_m_n
.gmch_n
,
10462 pipe_config
->fdi_m_n
.link_m
, pipe_config
->fdi_m_n
.link_n
,
10463 pipe_config
->fdi_m_n
.tu
);
10464 DRM_DEBUG_KMS("dp: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
10465 pipe_config
->has_dp_encoder
,
10466 pipe_config
->dp_m_n
.gmch_m
, pipe_config
->dp_m_n
.gmch_n
,
10467 pipe_config
->dp_m_n
.link_m
, pipe_config
->dp_m_n
.link_n
,
10468 pipe_config
->dp_m_n
.tu
);
10470 DRM_DEBUG_KMS("dp: %i, gmch_m2: %u, gmch_n2: %u, link_m2: %u, link_n2: %u, tu2: %u\n",
10471 pipe_config
->has_dp_encoder
,
10472 pipe_config
->dp_m2_n2
.gmch_m
,
10473 pipe_config
->dp_m2_n2
.gmch_n
,
10474 pipe_config
->dp_m2_n2
.link_m
,
10475 pipe_config
->dp_m2_n2
.link_n
,
10476 pipe_config
->dp_m2_n2
.tu
);
10478 DRM_DEBUG_KMS("audio: %i, infoframes: %i\n",
10479 pipe_config
->has_audio
,
10480 pipe_config
->has_infoframe
);
10482 DRM_DEBUG_KMS("requested mode:\n");
10483 drm_mode_debug_printmodeline(&pipe_config
->base
.mode
);
10484 DRM_DEBUG_KMS("adjusted mode:\n");
10485 drm_mode_debug_printmodeline(&pipe_config
->base
.adjusted_mode
);
10486 intel_dump_crtc_timings(&pipe_config
->base
.adjusted_mode
);
10487 DRM_DEBUG_KMS("port clock: %d\n", pipe_config
->port_clock
);
10488 DRM_DEBUG_KMS("pipe src size: %dx%d\n",
10489 pipe_config
->pipe_src_w
, pipe_config
->pipe_src_h
);
10490 DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n",
10491 pipe_config
->gmch_pfit
.control
,
10492 pipe_config
->gmch_pfit
.pgm_ratios
,
10493 pipe_config
->gmch_pfit
.lvds_border_bits
);
10494 DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n",
10495 pipe_config
->pch_pfit
.pos
,
10496 pipe_config
->pch_pfit
.size
,
10497 pipe_config
->pch_pfit
.enabled
? "enabled" : "disabled");
10498 DRM_DEBUG_KMS("ips: %i\n", pipe_config
->ips_enabled
);
10499 DRM_DEBUG_KMS("double wide: %i\n", pipe_config
->double_wide
);
10502 static bool encoders_cloneable(const struct intel_encoder
*a
,
10503 const struct intel_encoder
*b
)
10505 /* masks could be asymmetric, so check both ways */
10506 return a
== b
|| (a
->cloneable
& (1 << b
->type
) &&
10507 b
->cloneable
& (1 << a
->type
));
10510 static bool check_single_encoder_cloning(struct intel_crtc
*crtc
,
10511 struct intel_encoder
*encoder
)
10513 struct drm_device
*dev
= crtc
->base
.dev
;
10514 struct intel_encoder
*source_encoder
;
10516 for_each_intel_encoder(dev
, source_encoder
) {
10517 if (source_encoder
->new_crtc
!= crtc
)
10520 if (!encoders_cloneable(encoder
, source_encoder
))
10527 static bool check_encoder_cloning(struct intel_crtc
*crtc
)
10529 struct drm_device
*dev
= crtc
->base
.dev
;
10530 struct intel_encoder
*encoder
;
10532 for_each_intel_encoder(dev
, encoder
) {
10533 if (encoder
->new_crtc
!= crtc
)
10536 if (!check_single_encoder_cloning(crtc
, encoder
))
10543 static bool check_digital_port_conflicts(struct drm_device
*dev
)
10545 struct intel_connector
*connector
;
10546 unsigned int used_ports
= 0;
10549 * Walk the connector list instead of the encoder
10550 * list to detect the problem on ddi platforms
10551 * where there's just one encoder per digital port.
10553 for_each_intel_connector(dev
, connector
) {
10554 struct intel_encoder
*encoder
= connector
->new_encoder
;
10559 WARN_ON(!encoder
->new_crtc
);
10561 switch (encoder
->type
) {
10562 unsigned int port_mask
;
10563 case INTEL_OUTPUT_UNKNOWN
:
10564 if (WARN_ON(!HAS_DDI(dev
)))
10566 case INTEL_OUTPUT_DISPLAYPORT
:
10567 case INTEL_OUTPUT_HDMI
:
10568 case INTEL_OUTPUT_EDP
:
10569 port_mask
= 1 << enc_to_dig_port(&encoder
->base
)->port
;
10571 /* the same port mustn't appear more than once */
10572 if (used_ports
& port_mask
)
10575 used_ports
|= port_mask
;
10585 clear_intel_crtc_state(struct intel_crtc_state
*crtc_state
)
10587 struct drm_crtc_state tmp_state
;
10589 /* Clear only the intel specific part of the crtc state */
10590 tmp_state
= crtc_state
->base
;
10591 memset(crtc_state
, 0, sizeof *crtc_state
);
10592 crtc_state
->base
= tmp_state
;
10595 static struct intel_crtc_state
*
10596 intel_modeset_pipe_config(struct drm_crtc
*crtc
,
10597 struct drm_framebuffer
*fb
,
10598 struct drm_display_mode
*mode
,
10599 struct drm_atomic_state
*state
)
10601 struct drm_device
*dev
= crtc
->dev
;
10602 struct intel_encoder
*encoder
;
10603 struct intel_connector
*connector
;
10604 struct drm_connector_state
*connector_state
;
10605 struct intel_crtc_state
*pipe_config
;
10606 int plane_bpp
, ret
= -EINVAL
;
10610 if (!check_encoder_cloning(to_intel_crtc(crtc
))) {
10611 DRM_DEBUG_KMS("rejecting invalid cloning configuration\n");
10612 return ERR_PTR(-EINVAL
);
10615 if (!check_digital_port_conflicts(dev
)) {
10616 DRM_DEBUG_KMS("rejecting conflicting digital port configuration\n");
10617 return ERR_PTR(-EINVAL
);
10620 pipe_config
= intel_atomic_get_crtc_state(state
, to_intel_crtc(crtc
));
10621 if (IS_ERR(pipe_config
))
10622 return pipe_config
;
10624 clear_intel_crtc_state(pipe_config
);
10626 pipe_config
->base
.crtc
= crtc
;
10627 drm_mode_copy(&pipe_config
->base
.adjusted_mode
, mode
);
10628 drm_mode_copy(&pipe_config
->base
.mode
, mode
);
10630 pipe_config
->cpu_transcoder
=
10631 (enum transcoder
) to_intel_crtc(crtc
)->pipe
;
10632 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
10635 * Sanitize sync polarity flags based on requested ones. If neither
10636 * positive or negative polarity is requested, treat this as meaning
10637 * negative polarity.
10639 if (!(pipe_config
->base
.adjusted_mode
.flags
&
10640 (DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NHSYNC
)))
10641 pipe_config
->base
.adjusted_mode
.flags
|= DRM_MODE_FLAG_NHSYNC
;
10643 if (!(pipe_config
->base
.adjusted_mode
.flags
&
10644 (DRM_MODE_FLAG_PVSYNC
| DRM_MODE_FLAG_NVSYNC
)))
10645 pipe_config
->base
.adjusted_mode
.flags
|= DRM_MODE_FLAG_NVSYNC
;
10647 /* Compute a starting value for pipe_config->pipe_bpp taking the source
10648 * plane pixel format and any sink constraints into account. Returns the
10649 * source plane bpp so that dithering can be selected on mismatches
10650 * after encoders and crtc also have had their say. */
10651 plane_bpp
= compute_baseline_pipe_bpp(to_intel_crtc(crtc
),
10657 * Determine the real pipe dimensions. Note that stereo modes can
10658 * increase the actual pipe size due to the frame doubling and
10659 * insertion of additional space for blanks between the frame. This
10660 * is stored in the crtc timings. We use the requested mode to do this
10661 * computation to clearly distinguish it from the adjusted mode, which
10662 * can be changed by the connectors in the below retry loop.
10664 drm_crtc_get_hv_timing(&pipe_config
->base
.mode
,
10665 &pipe_config
->pipe_src_w
,
10666 &pipe_config
->pipe_src_h
);
10669 /* Ensure the port clock defaults are reset when retrying. */
10670 pipe_config
->port_clock
= 0;
10671 pipe_config
->pixel_multiplier
= 1;
10673 /* Fill in default crtc timings, allow encoders to overwrite them. */
10674 drm_mode_set_crtcinfo(&pipe_config
->base
.adjusted_mode
,
10675 CRTC_STEREO_DOUBLE
);
10677 /* Pass our mode to the connectors and the CRTC to give them a chance to
10678 * adjust it according to limitations or connector properties, and also
10679 * a chance to reject the mode entirely.
10681 for (i
= 0; i
< state
->num_connector
; i
++) {
10682 connector
= to_intel_connector(state
->connectors
[i
]);
10686 connector_state
= state
->connector_states
[i
];
10687 if (connector_state
->crtc
!= crtc
)
10690 encoder
= to_intel_encoder(connector_state
->best_encoder
);
10692 if (!(encoder
->compute_config(encoder
, pipe_config
))) {
10693 DRM_DEBUG_KMS("Encoder config failure\n");
10698 /* Set default port clock if not overwritten by the encoder. Needs to be
10699 * done afterwards in case the encoder adjusts the mode. */
10700 if (!pipe_config
->port_clock
)
10701 pipe_config
->port_clock
= pipe_config
->base
.adjusted_mode
.crtc_clock
10702 * pipe_config
->pixel_multiplier
;
10704 ret
= intel_crtc_compute_config(to_intel_crtc(crtc
), pipe_config
);
10706 DRM_DEBUG_KMS("CRTC fixup failed\n");
10710 if (ret
== RETRY
) {
10711 if (WARN(!retry
, "loop in pipe configuration computation\n")) {
10716 DRM_DEBUG_KMS("CRTC bw constrained, retrying\n");
10718 goto encoder_retry
;
10721 pipe_config
->dither
= pipe_config
->pipe_bpp
!= plane_bpp
;
10722 DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n",
10723 plane_bpp
, pipe_config
->pipe_bpp
, pipe_config
->dither
);
10725 return pipe_config
;
10727 return ERR_PTR(ret
);
10730 /* Computes which crtcs are affected and sets the relevant bits in the mask. For
10731 * simplicity we use the crtc's pipe number (because it's easier to obtain). */
10733 intel_modeset_affected_pipes(struct drm_crtc
*crtc
, unsigned *modeset_pipes
,
10734 unsigned *prepare_pipes
, unsigned *disable_pipes
)
10736 struct intel_crtc
*intel_crtc
;
10737 struct drm_device
*dev
= crtc
->dev
;
10738 struct intel_encoder
*encoder
;
10739 struct intel_connector
*connector
;
10740 struct drm_crtc
*tmp_crtc
;
10742 *disable_pipes
= *modeset_pipes
= *prepare_pipes
= 0;
10744 /* Check which crtcs have changed outputs connected to them, these need
10745 * to be part of the prepare_pipes mask. We don't (yet) support global
10746 * modeset across multiple crtcs, so modeset_pipes will only have one
10747 * bit set at most. */
10748 for_each_intel_connector(dev
, connector
) {
10749 if (connector
->base
.encoder
== &connector
->new_encoder
->base
)
10752 if (connector
->base
.encoder
) {
10753 tmp_crtc
= connector
->base
.encoder
->crtc
;
10755 *prepare_pipes
|= 1 << to_intel_crtc(tmp_crtc
)->pipe
;
10758 if (connector
->new_encoder
)
10760 1 << connector
->new_encoder
->new_crtc
->pipe
;
10763 for_each_intel_encoder(dev
, encoder
) {
10764 if (encoder
->base
.crtc
== &encoder
->new_crtc
->base
)
10767 if (encoder
->base
.crtc
) {
10768 tmp_crtc
= encoder
->base
.crtc
;
10770 *prepare_pipes
|= 1 << to_intel_crtc(tmp_crtc
)->pipe
;
10773 if (encoder
->new_crtc
)
10774 *prepare_pipes
|= 1 << encoder
->new_crtc
->pipe
;
10777 /* Check for pipes that will be enabled/disabled ... */
10778 for_each_intel_crtc(dev
, intel_crtc
) {
10779 if (intel_crtc
->base
.state
->enable
== intel_crtc
->new_enabled
)
10782 if (!intel_crtc
->new_enabled
)
10783 *disable_pipes
|= 1 << intel_crtc
->pipe
;
10785 *prepare_pipes
|= 1 << intel_crtc
->pipe
;
10789 /* set_mode is also used to update properties on life display pipes. */
10790 intel_crtc
= to_intel_crtc(crtc
);
10791 if (intel_crtc
->new_enabled
)
10792 *prepare_pipes
|= 1 << intel_crtc
->pipe
;
10795 * For simplicity do a full modeset on any pipe where the output routing
10796 * changed. We could be more clever, but that would require us to be
10797 * more careful with calling the relevant encoder->mode_set functions.
10799 if (*prepare_pipes
)
10800 *modeset_pipes
= *prepare_pipes
;
10802 /* ... and mask these out. */
10803 *modeset_pipes
&= ~(*disable_pipes
);
10804 *prepare_pipes
&= ~(*disable_pipes
);
10807 * HACK: We don't (yet) fully support global modesets. intel_set_config
10808 * obies this rule, but the modeset restore mode of
10809 * intel_modeset_setup_hw_state does not.
10811 *modeset_pipes
&= 1 << intel_crtc
->pipe
;
10812 *prepare_pipes
&= 1 << intel_crtc
->pipe
;
10814 DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
10815 *modeset_pipes
, *prepare_pipes
, *disable_pipes
);
10818 static bool intel_crtc_in_use(struct drm_crtc
*crtc
)
10820 struct drm_encoder
*encoder
;
10821 struct drm_device
*dev
= crtc
->dev
;
10823 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
)
10824 if (encoder
->crtc
== crtc
)
10831 intel_modeset_update_state(struct drm_device
*dev
, unsigned prepare_pipes
)
10833 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10834 struct intel_encoder
*intel_encoder
;
10835 struct intel_crtc
*intel_crtc
;
10836 struct drm_connector
*connector
;
10838 intel_shared_dpll_commit(dev_priv
);
10840 for_each_intel_encoder(dev
, intel_encoder
) {
10841 if (!intel_encoder
->base
.crtc
)
10844 intel_crtc
= to_intel_crtc(intel_encoder
->base
.crtc
);
10846 if (prepare_pipes
& (1 << intel_crtc
->pipe
))
10847 intel_encoder
->connectors_active
= false;
10850 intel_modeset_commit_output_state(dev
);
10852 /* Double check state. */
10853 for_each_intel_crtc(dev
, intel_crtc
) {
10854 WARN_ON(intel_crtc
->base
.state
->enable
!= intel_crtc_in_use(&intel_crtc
->base
));
10855 WARN_ON(intel_crtc
->new_config
&&
10856 intel_crtc
->new_config
!= intel_crtc
->config
);
10857 WARN_ON(intel_crtc
->base
.state
->enable
!= !!intel_crtc
->new_config
);
10860 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
10861 if (!connector
->encoder
|| !connector
->encoder
->crtc
)
10864 intel_crtc
= to_intel_crtc(connector
->encoder
->crtc
);
10866 if (prepare_pipes
& (1 << intel_crtc
->pipe
)) {
10867 struct drm_property
*dpms_property
=
10868 dev
->mode_config
.dpms_property
;
10870 connector
->dpms
= DRM_MODE_DPMS_ON
;
10871 drm_object_property_set_value(&connector
->base
,
10875 intel_encoder
= to_intel_encoder(connector
->encoder
);
10876 intel_encoder
->connectors_active
= true;
10882 static bool intel_fuzzy_clock_check(int clock1
, int clock2
)
10886 if (clock1
== clock2
)
10889 if (!clock1
|| !clock2
)
10892 diff
= abs(clock1
- clock2
);
10894 if (((((diff
+ clock1
+ clock2
) * 100)) / (clock1
+ clock2
)) < 105)
10900 #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
10901 list_for_each_entry((intel_crtc), \
10902 &(dev)->mode_config.crtc_list, \
10904 if (mask & (1 <<(intel_crtc)->pipe))
10907 intel_pipe_config_compare(struct drm_device
*dev
,
10908 struct intel_crtc_state
*current_config
,
10909 struct intel_crtc_state
*pipe_config
)
10911 #define PIPE_CONF_CHECK_X(name) \
10912 if (current_config->name != pipe_config->name) { \
10913 DRM_ERROR("mismatch in " #name " " \
10914 "(expected 0x%08x, found 0x%08x)\n", \
10915 current_config->name, \
10916 pipe_config->name); \
10920 #define PIPE_CONF_CHECK_I(name) \
10921 if (current_config->name != pipe_config->name) { \
10922 DRM_ERROR("mismatch in " #name " " \
10923 "(expected %i, found %i)\n", \
10924 current_config->name, \
10925 pipe_config->name); \
10929 /* This is required for BDW+ where there is only one set of registers for
10930 * switching between high and low RR.
10931 * This macro can be used whenever a comparison has to be made between one
10932 * hw state and multiple sw state variables.
10934 #define PIPE_CONF_CHECK_I_ALT(name, alt_name) \
10935 if ((current_config->name != pipe_config->name) && \
10936 (current_config->alt_name != pipe_config->name)) { \
10937 DRM_ERROR("mismatch in " #name " " \
10938 "(expected %i or %i, found %i)\n", \
10939 current_config->name, \
10940 current_config->alt_name, \
10941 pipe_config->name); \
10945 #define PIPE_CONF_CHECK_FLAGS(name, mask) \
10946 if ((current_config->name ^ pipe_config->name) & (mask)) { \
10947 DRM_ERROR("mismatch in " #name "(" #mask ") " \
10948 "(expected %i, found %i)\n", \
10949 current_config->name & (mask), \
10950 pipe_config->name & (mask)); \
10954 #define PIPE_CONF_CHECK_CLOCK_FUZZY(name) \
10955 if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \
10956 DRM_ERROR("mismatch in " #name " " \
10957 "(expected %i, found %i)\n", \
10958 current_config->name, \
10959 pipe_config->name); \
10963 #define PIPE_CONF_QUIRK(quirk) \
10964 ((current_config->quirks | pipe_config->quirks) & (quirk))
10966 PIPE_CONF_CHECK_I(cpu_transcoder
);
10968 PIPE_CONF_CHECK_I(has_pch_encoder
);
10969 PIPE_CONF_CHECK_I(fdi_lanes
);
10970 PIPE_CONF_CHECK_I(fdi_m_n
.gmch_m
);
10971 PIPE_CONF_CHECK_I(fdi_m_n
.gmch_n
);
10972 PIPE_CONF_CHECK_I(fdi_m_n
.link_m
);
10973 PIPE_CONF_CHECK_I(fdi_m_n
.link_n
);
10974 PIPE_CONF_CHECK_I(fdi_m_n
.tu
);
10976 PIPE_CONF_CHECK_I(has_dp_encoder
);
10978 if (INTEL_INFO(dev
)->gen
< 8) {
10979 PIPE_CONF_CHECK_I(dp_m_n
.gmch_m
);
10980 PIPE_CONF_CHECK_I(dp_m_n
.gmch_n
);
10981 PIPE_CONF_CHECK_I(dp_m_n
.link_m
);
10982 PIPE_CONF_CHECK_I(dp_m_n
.link_n
);
10983 PIPE_CONF_CHECK_I(dp_m_n
.tu
);
10985 if (current_config
->has_drrs
) {
10986 PIPE_CONF_CHECK_I(dp_m2_n2
.gmch_m
);
10987 PIPE_CONF_CHECK_I(dp_m2_n2
.gmch_n
);
10988 PIPE_CONF_CHECK_I(dp_m2_n2
.link_m
);
10989 PIPE_CONF_CHECK_I(dp_m2_n2
.link_n
);
10990 PIPE_CONF_CHECK_I(dp_m2_n2
.tu
);
10993 PIPE_CONF_CHECK_I_ALT(dp_m_n
.gmch_m
, dp_m2_n2
.gmch_m
);
10994 PIPE_CONF_CHECK_I_ALT(dp_m_n
.gmch_n
, dp_m2_n2
.gmch_n
);
10995 PIPE_CONF_CHECK_I_ALT(dp_m_n
.link_m
, dp_m2_n2
.link_m
);
10996 PIPE_CONF_CHECK_I_ALT(dp_m_n
.link_n
, dp_m2_n2
.link_n
);
10997 PIPE_CONF_CHECK_I_ALT(dp_m_n
.tu
, dp_m2_n2
.tu
);
11000 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hdisplay
);
11001 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_htotal
);
11002 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hblank_start
);
11003 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hblank_end
);
11004 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hsync_start
);
11005 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hsync_end
);
11007 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vdisplay
);
11008 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vtotal
);
11009 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vblank_start
);
11010 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vblank_end
);
11011 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vsync_start
);
11012 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vsync_end
);
11014 PIPE_CONF_CHECK_I(pixel_multiplier
);
11015 PIPE_CONF_CHECK_I(has_hdmi_sink
);
11016 if ((INTEL_INFO(dev
)->gen
< 8 && !IS_HASWELL(dev
)) ||
11017 IS_VALLEYVIEW(dev
))
11018 PIPE_CONF_CHECK_I(limited_color_range
);
11019 PIPE_CONF_CHECK_I(has_infoframe
);
11021 PIPE_CONF_CHECK_I(has_audio
);
11023 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
11024 DRM_MODE_FLAG_INTERLACE
);
11026 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS
)) {
11027 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
11028 DRM_MODE_FLAG_PHSYNC
);
11029 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
11030 DRM_MODE_FLAG_NHSYNC
);
11031 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
11032 DRM_MODE_FLAG_PVSYNC
);
11033 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
11034 DRM_MODE_FLAG_NVSYNC
);
11037 PIPE_CONF_CHECK_I(pipe_src_w
);
11038 PIPE_CONF_CHECK_I(pipe_src_h
);
11041 * FIXME: BIOS likes to set up a cloned config with lvds+external
11042 * screen. Since we don't yet re-compute the pipe config when moving
11043 * just the lvds port away to another pipe the sw tracking won't match.
11045 * Proper atomic modesets with recomputed global state will fix this.
11046 * Until then just don't check gmch state for inherited modes.
11048 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_INHERITED_MODE
)) {
11049 PIPE_CONF_CHECK_I(gmch_pfit
.control
);
11050 /* pfit ratios are autocomputed by the hw on gen4+ */
11051 if (INTEL_INFO(dev
)->gen
< 4)
11052 PIPE_CONF_CHECK_I(gmch_pfit
.pgm_ratios
);
11053 PIPE_CONF_CHECK_I(gmch_pfit
.lvds_border_bits
);
11056 PIPE_CONF_CHECK_I(pch_pfit
.enabled
);
11057 if (current_config
->pch_pfit
.enabled
) {
11058 PIPE_CONF_CHECK_I(pch_pfit
.pos
);
11059 PIPE_CONF_CHECK_I(pch_pfit
.size
);
11062 /* BDW+ don't expose a synchronous way to read the state */
11063 if (IS_HASWELL(dev
))
11064 PIPE_CONF_CHECK_I(ips_enabled
);
11066 PIPE_CONF_CHECK_I(double_wide
);
11068 PIPE_CONF_CHECK_X(ddi_pll_sel
);
11070 PIPE_CONF_CHECK_I(shared_dpll
);
11071 PIPE_CONF_CHECK_X(dpll_hw_state
.dpll
);
11072 PIPE_CONF_CHECK_X(dpll_hw_state
.dpll_md
);
11073 PIPE_CONF_CHECK_X(dpll_hw_state
.fp0
);
11074 PIPE_CONF_CHECK_X(dpll_hw_state
.fp1
);
11075 PIPE_CONF_CHECK_X(dpll_hw_state
.wrpll
);
11076 PIPE_CONF_CHECK_X(dpll_hw_state
.ctrl1
);
11077 PIPE_CONF_CHECK_X(dpll_hw_state
.cfgcr1
);
11078 PIPE_CONF_CHECK_X(dpll_hw_state
.cfgcr2
);
11080 if (IS_G4X(dev
) || INTEL_INFO(dev
)->gen
>= 5)
11081 PIPE_CONF_CHECK_I(pipe_bpp
);
11083 PIPE_CONF_CHECK_CLOCK_FUZZY(base
.adjusted_mode
.crtc_clock
);
11084 PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock
);
11086 #undef PIPE_CONF_CHECK_X
11087 #undef PIPE_CONF_CHECK_I
11088 #undef PIPE_CONF_CHECK_I_ALT
11089 #undef PIPE_CONF_CHECK_FLAGS
11090 #undef PIPE_CONF_CHECK_CLOCK_FUZZY
11091 #undef PIPE_CONF_QUIRK
11096 static void check_wm_state(struct drm_device
*dev
)
11098 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11099 struct skl_ddb_allocation hw_ddb
, *sw_ddb
;
11100 struct intel_crtc
*intel_crtc
;
11103 if (INTEL_INFO(dev
)->gen
< 9)
11106 skl_ddb_get_hw_state(dev_priv
, &hw_ddb
);
11107 sw_ddb
= &dev_priv
->wm
.skl_hw
.ddb
;
11109 for_each_intel_crtc(dev
, intel_crtc
) {
11110 struct skl_ddb_entry
*hw_entry
, *sw_entry
;
11111 const enum pipe pipe
= intel_crtc
->pipe
;
11113 if (!intel_crtc
->active
)
11117 for_each_plane(dev_priv
, pipe
, plane
) {
11118 hw_entry
= &hw_ddb
.plane
[pipe
][plane
];
11119 sw_entry
= &sw_ddb
->plane
[pipe
][plane
];
11121 if (skl_ddb_entry_equal(hw_entry
, sw_entry
))
11124 DRM_ERROR("mismatch in DDB state pipe %c plane %d "
11125 "(expected (%u,%u), found (%u,%u))\n",
11126 pipe_name(pipe
), plane
+ 1,
11127 sw_entry
->start
, sw_entry
->end
,
11128 hw_entry
->start
, hw_entry
->end
);
11132 hw_entry
= &hw_ddb
.cursor
[pipe
];
11133 sw_entry
= &sw_ddb
->cursor
[pipe
];
11135 if (skl_ddb_entry_equal(hw_entry
, sw_entry
))
11138 DRM_ERROR("mismatch in DDB state pipe %c cursor "
11139 "(expected (%u,%u), found (%u,%u))\n",
11141 sw_entry
->start
, sw_entry
->end
,
11142 hw_entry
->start
, hw_entry
->end
);
11147 check_connector_state(struct drm_device
*dev
)
11149 struct intel_connector
*connector
;
11151 for_each_intel_connector(dev
, connector
) {
11152 /* This also checks the encoder/connector hw state with the
11153 * ->get_hw_state callbacks. */
11154 intel_connector_check_state(connector
);
11156 I915_STATE_WARN(&connector
->new_encoder
->base
!= connector
->base
.encoder
,
11157 "connector's staged encoder doesn't match current encoder\n");
11162 check_encoder_state(struct drm_device
*dev
)
11164 struct intel_encoder
*encoder
;
11165 struct intel_connector
*connector
;
11167 for_each_intel_encoder(dev
, encoder
) {
11168 bool enabled
= false;
11169 bool active
= false;
11170 enum pipe pipe
, tracked_pipe
;
11172 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
11173 encoder
->base
.base
.id
,
11174 encoder
->base
.name
);
11176 I915_STATE_WARN(&encoder
->new_crtc
->base
!= encoder
->base
.crtc
,
11177 "encoder's stage crtc doesn't match current crtc\n");
11178 I915_STATE_WARN(encoder
->connectors_active
&& !encoder
->base
.crtc
,
11179 "encoder's active_connectors set, but no crtc\n");
11181 for_each_intel_connector(dev
, connector
) {
11182 if (connector
->base
.encoder
!= &encoder
->base
)
11185 if (connector
->base
.dpms
!= DRM_MODE_DPMS_OFF
)
11189 * for MST connectors if we unplug the connector is gone
11190 * away but the encoder is still connected to a crtc
11191 * until a modeset happens in response to the hotplug.
11193 if (!enabled
&& encoder
->base
.encoder_type
== DRM_MODE_ENCODER_DPMST
)
11196 I915_STATE_WARN(!!encoder
->base
.crtc
!= enabled
,
11197 "encoder's enabled state mismatch "
11198 "(expected %i, found %i)\n",
11199 !!encoder
->base
.crtc
, enabled
);
11200 I915_STATE_WARN(active
&& !encoder
->base
.crtc
,
11201 "active encoder with no crtc\n");
11203 I915_STATE_WARN(encoder
->connectors_active
!= active
,
11204 "encoder's computed active state doesn't match tracked active state "
11205 "(expected %i, found %i)\n", active
, encoder
->connectors_active
);
11207 active
= encoder
->get_hw_state(encoder
, &pipe
);
11208 I915_STATE_WARN(active
!= encoder
->connectors_active
,
11209 "encoder's hw state doesn't match sw tracking "
11210 "(expected %i, found %i)\n",
11211 encoder
->connectors_active
, active
);
11213 if (!encoder
->base
.crtc
)
11216 tracked_pipe
= to_intel_crtc(encoder
->base
.crtc
)->pipe
;
11217 I915_STATE_WARN(active
&& pipe
!= tracked_pipe
,
11218 "active encoder's pipe doesn't match"
11219 "(expected %i, found %i)\n",
11220 tracked_pipe
, pipe
);
11226 check_crtc_state(struct drm_device
*dev
)
11228 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11229 struct intel_crtc
*crtc
;
11230 struct intel_encoder
*encoder
;
11231 struct intel_crtc_state pipe_config
;
11233 for_each_intel_crtc(dev
, crtc
) {
11234 bool enabled
= false;
11235 bool active
= false;
11237 memset(&pipe_config
, 0, sizeof(pipe_config
));
11239 DRM_DEBUG_KMS("[CRTC:%d]\n",
11240 crtc
->base
.base
.id
);
11242 I915_STATE_WARN(crtc
->active
&& !crtc
->base
.state
->enable
,
11243 "active crtc, but not enabled in sw tracking\n");
11245 for_each_intel_encoder(dev
, encoder
) {
11246 if (encoder
->base
.crtc
!= &crtc
->base
)
11249 if (encoder
->connectors_active
)
11253 I915_STATE_WARN(active
!= crtc
->active
,
11254 "crtc's computed active state doesn't match tracked active state "
11255 "(expected %i, found %i)\n", active
, crtc
->active
);
11256 I915_STATE_WARN(enabled
!= crtc
->base
.state
->enable
,
11257 "crtc's computed enabled state doesn't match tracked enabled state "
11258 "(expected %i, found %i)\n", enabled
,
11259 crtc
->base
.state
->enable
);
11261 active
= dev_priv
->display
.get_pipe_config(crtc
,
11264 /* hw state is inconsistent with the pipe quirk */
11265 if ((crtc
->pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
11266 (crtc
->pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
11267 active
= crtc
->active
;
11269 for_each_intel_encoder(dev
, encoder
) {
11271 if (encoder
->base
.crtc
!= &crtc
->base
)
11273 if (encoder
->get_hw_state(encoder
, &pipe
))
11274 encoder
->get_config(encoder
, &pipe_config
);
11277 I915_STATE_WARN(crtc
->active
!= active
,
11278 "crtc active state doesn't match with hw state "
11279 "(expected %i, found %i)\n", crtc
->active
, active
);
11282 !intel_pipe_config_compare(dev
, crtc
->config
, &pipe_config
)) {
11283 I915_STATE_WARN(1, "pipe state doesn't match!\n");
11284 intel_dump_pipe_config(crtc
, &pipe_config
,
11286 intel_dump_pipe_config(crtc
, crtc
->config
,
11293 check_shared_dpll_state(struct drm_device
*dev
)
11295 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11296 struct intel_crtc
*crtc
;
11297 struct intel_dpll_hw_state dpll_hw_state
;
11300 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
11301 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
11302 int enabled_crtcs
= 0, active_crtcs
= 0;
11305 memset(&dpll_hw_state
, 0, sizeof(dpll_hw_state
));
11307 DRM_DEBUG_KMS("%s\n", pll
->name
);
11309 active
= pll
->get_hw_state(dev_priv
, pll
, &dpll_hw_state
);
11311 I915_STATE_WARN(pll
->active
> hweight32(pll
->config
.crtc_mask
),
11312 "more active pll users than references: %i vs %i\n",
11313 pll
->active
, hweight32(pll
->config
.crtc_mask
));
11314 I915_STATE_WARN(pll
->active
&& !pll
->on
,
11315 "pll in active use but not on in sw tracking\n");
11316 I915_STATE_WARN(pll
->on
&& !pll
->active
,
11317 "pll in on but not on in use in sw tracking\n");
11318 I915_STATE_WARN(pll
->on
!= active
,
11319 "pll on state mismatch (expected %i, found %i)\n",
11322 for_each_intel_crtc(dev
, crtc
) {
11323 if (crtc
->base
.state
->enable
&& intel_crtc_to_shared_dpll(crtc
) == pll
)
11325 if (crtc
->active
&& intel_crtc_to_shared_dpll(crtc
) == pll
)
11328 I915_STATE_WARN(pll
->active
!= active_crtcs
,
11329 "pll active crtcs mismatch (expected %i, found %i)\n",
11330 pll
->active
, active_crtcs
);
11331 I915_STATE_WARN(hweight32(pll
->config
.crtc_mask
) != enabled_crtcs
,
11332 "pll enabled crtcs mismatch (expected %i, found %i)\n",
11333 hweight32(pll
->config
.crtc_mask
), enabled_crtcs
);
11335 I915_STATE_WARN(pll
->on
&& memcmp(&pll
->config
.hw_state
, &dpll_hw_state
,
11336 sizeof(dpll_hw_state
)),
11337 "pll hw state mismatch\n");
11342 intel_modeset_check_state(struct drm_device
*dev
)
11344 check_wm_state(dev
);
11345 check_connector_state(dev
);
11346 check_encoder_state(dev
);
11347 check_crtc_state(dev
);
11348 check_shared_dpll_state(dev
);
11351 void ironlake_check_encoder_dotclock(const struct intel_crtc_state
*pipe_config
,
11355 * FDI already provided one idea for the dotclock.
11356 * Yell if the encoder disagrees.
11358 WARN(!intel_fuzzy_clock_check(pipe_config
->base
.adjusted_mode
.crtc_clock
, dotclock
),
11359 "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n",
11360 pipe_config
->base
.adjusted_mode
.crtc_clock
, dotclock
);
11363 static void update_scanline_offset(struct intel_crtc
*crtc
)
11365 struct drm_device
*dev
= crtc
->base
.dev
;
11368 * The scanline counter increments at the leading edge of hsync.
11370 * On most platforms it starts counting from vtotal-1 on the
11371 * first active line. That means the scanline counter value is
11372 * always one less than what we would expect. Ie. just after
11373 * start of vblank, which also occurs at start of hsync (on the
11374 * last active line), the scanline counter will read vblank_start-1.
11376 * On gen2 the scanline counter starts counting from 1 instead
11377 * of vtotal-1, so we have to subtract one (or rather add vtotal-1
11378 * to keep the value positive), instead of adding one.
11380 * On HSW+ the behaviour of the scanline counter depends on the output
11381 * type. For DP ports it behaves like most other platforms, but on HDMI
11382 * there's an extra 1 line difference. So we need to add two instead of
11383 * one to the value.
11385 if (IS_GEN2(dev
)) {
11386 const struct drm_display_mode
*mode
= &crtc
->config
->base
.adjusted_mode
;
11389 vtotal
= mode
->crtc_vtotal
;
11390 if (mode
->flags
& DRM_MODE_FLAG_INTERLACE
)
11393 crtc
->scanline_offset
= vtotal
- 1;
11394 } else if (HAS_DDI(dev
) &&
11395 intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
)) {
11396 crtc
->scanline_offset
= 2;
11398 crtc
->scanline_offset
= 1;
11401 static struct intel_crtc_state
*
11402 intel_modeset_compute_config(struct drm_crtc
*crtc
,
11403 struct drm_display_mode
*mode
,
11404 struct drm_framebuffer
*fb
,
11405 struct drm_atomic_state
*state
,
11406 unsigned *modeset_pipes
,
11407 unsigned *prepare_pipes
,
11408 unsigned *disable_pipes
)
11410 struct drm_device
*dev
= crtc
->dev
;
11411 struct intel_crtc_state
*pipe_config
= NULL
;
11412 struct intel_crtc
*intel_crtc
;
11415 ret
= drm_atomic_add_affected_connectors(state
, crtc
);
11417 return ERR_PTR(ret
);
11419 intel_modeset_affected_pipes(crtc
, modeset_pipes
,
11420 prepare_pipes
, disable_pipes
);
11422 for_each_intel_crtc_masked(dev
, *disable_pipes
, intel_crtc
) {
11423 pipe_config
= intel_atomic_get_crtc_state(state
, intel_crtc
);
11424 if (IS_ERR(pipe_config
))
11425 return pipe_config
;
11427 pipe_config
->base
.enable
= false;
11431 * Note this needs changes when we start tracking multiple modes
11432 * and crtcs. At that point we'll need to compute the whole config
11433 * (i.e. one pipe_config for each crtc) rather than just the one
11436 for_each_intel_crtc_masked(dev
, *modeset_pipes
, intel_crtc
) {
11437 /* FIXME: For now we still expect modeset_pipes has at most
11439 if (WARN_ON(&intel_crtc
->base
!= crtc
))
11442 pipe_config
= intel_modeset_pipe_config(crtc
, fb
, mode
, state
);
11443 if (IS_ERR(pipe_config
))
11444 return pipe_config
;
11446 intel_dump_pipe_config(to_intel_crtc(crtc
), pipe_config
,
11450 return intel_atomic_get_crtc_state(state
, to_intel_crtc(crtc
));;
11453 static int __intel_set_mode_setup_plls(struct drm_device
*dev
,
11454 unsigned modeset_pipes
,
11455 unsigned disable_pipes
)
11457 struct drm_i915_private
*dev_priv
= to_i915(dev
);
11458 unsigned clear_pipes
= modeset_pipes
| disable_pipes
;
11459 struct intel_crtc
*intel_crtc
;
11462 if (!dev_priv
->display
.crtc_compute_clock
)
11465 ret
= intel_shared_dpll_start_config(dev_priv
, clear_pipes
);
11469 for_each_intel_crtc_masked(dev
, modeset_pipes
, intel_crtc
) {
11470 struct intel_crtc_state
*state
= intel_crtc
->new_config
;
11471 ret
= dev_priv
->display
.crtc_compute_clock(intel_crtc
,
11474 intel_shared_dpll_abort_config(dev_priv
);
11483 static int __intel_set_mode(struct drm_crtc
*crtc
,
11484 struct drm_display_mode
*mode
,
11485 int x
, int y
, struct drm_framebuffer
*fb
,
11486 struct intel_crtc_state
*pipe_config
,
11487 unsigned modeset_pipes
,
11488 unsigned prepare_pipes
,
11489 unsigned disable_pipes
)
11491 struct drm_device
*dev
= crtc
->dev
;
11492 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11493 struct drm_display_mode
*saved_mode
;
11494 struct intel_crtc_state
*crtc_state_copy
= NULL
;
11495 struct intel_crtc
*intel_crtc
;
11498 saved_mode
= kmalloc(sizeof(*saved_mode
), GFP_KERNEL
);
11502 crtc_state_copy
= kmalloc(sizeof(*crtc_state_copy
), GFP_KERNEL
);
11503 if (!crtc_state_copy
) {
11508 *saved_mode
= crtc
->mode
;
11511 to_intel_crtc(crtc
)->new_config
= pipe_config
;
11514 * See if the config requires any additional preparation, e.g.
11515 * to adjust global state with pipes off. We need to do this
11516 * here so we can get the modeset_pipe updated config for the new
11517 * mode set on this crtc. For other crtcs we need to use the
11518 * adjusted_mode bits in the crtc directly.
11520 if (IS_VALLEYVIEW(dev
)) {
11521 valleyview_modeset_global_pipes(dev
, &prepare_pipes
);
11523 /* may have added more to prepare_pipes than we should */
11524 prepare_pipes
&= ~disable_pipes
;
11527 ret
= __intel_set_mode_setup_plls(dev
, modeset_pipes
, disable_pipes
);
11531 for_each_intel_crtc_masked(dev
, disable_pipes
, intel_crtc
)
11532 intel_crtc_disable(&intel_crtc
->base
);
11534 for_each_intel_crtc_masked(dev
, prepare_pipes
, intel_crtc
) {
11535 if (intel_crtc
->base
.state
->enable
)
11536 dev_priv
->display
.crtc_disable(&intel_crtc
->base
);
11539 /* crtc->mode is already used by the ->mode_set callbacks, hence we need
11540 * to set it here already despite that we pass it down the callchain.
11542 * Note we'll need to fix this up when we start tracking multiple
11543 * pipes; here we assume a single modeset_pipe and only track the
11544 * single crtc and mode.
11546 if (modeset_pipes
) {
11547 crtc
->mode
= *mode
;
11548 /* mode_set/enable/disable functions rely on a correct pipe
11550 intel_crtc_set_state(to_intel_crtc(crtc
), pipe_config
);
11553 * Calculate and store various constants which
11554 * are later needed by vblank and swap-completion
11555 * timestamping. They are derived from true hwmode.
11557 drm_calc_timestamping_constants(crtc
,
11558 &pipe_config
->base
.adjusted_mode
);
11561 /* Only after disabling all output pipelines that will be changed can we
11562 * update the the output configuration. */
11563 intel_modeset_update_state(dev
, prepare_pipes
);
11565 modeset_update_crtc_power_domains(pipe_config
->base
.state
);
11567 /* Set up the DPLL and any encoders state that needs to adjust or depend
11570 for_each_intel_crtc_masked(dev
, modeset_pipes
, intel_crtc
) {
11571 struct drm_plane
*primary
= intel_crtc
->base
.primary
;
11572 int vdisplay
, hdisplay
;
11574 drm_crtc_get_hv_timing(mode
, &hdisplay
, &vdisplay
);
11575 ret
= primary
->funcs
->update_plane(primary
, &intel_crtc
->base
,
11577 hdisplay
, vdisplay
,
11579 hdisplay
<< 16, vdisplay
<< 16);
11582 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
11583 for_each_intel_crtc_masked(dev
, prepare_pipes
, intel_crtc
) {
11584 update_scanline_offset(intel_crtc
);
11586 dev_priv
->display
.crtc_enable(&intel_crtc
->base
);
11589 /* FIXME: add subpixel order */
11591 if (ret
&& crtc
->state
->enable
)
11592 crtc
->mode
= *saved_mode
;
11594 if (ret
== 0 && pipe_config
) {
11595 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11597 /* The pipe_config will be freed with the atomic state, so
11599 memcpy(crtc_state_copy
, intel_crtc
->config
,
11600 sizeof *crtc_state_copy
);
11601 intel_crtc
->config
= crtc_state_copy
;
11602 intel_crtc
->base
.state
= &crtc_state_copy
->base
;
11605 intel_crtc
->new_config
= intel_crtc
->config
;
11607 kfree(crtc_state_copy
);
11614 static int intel_set_mode_pipes(struct drm_crtc
*crtc
,
11615 struct drm_display_mode
*mode
,
11616 int x
, int y
, struct drm_framebuffer
*fb
,
11617 struct intel_crtc_state
*pipe_config
,
11618 unsigned modeset_pipes
,
11619 unsigned prepare_pipes
,
11620 unsigned disable_pipes
)
11624 ret
= __intel_set_mode(crtc
, mode
, x
, y
, fb
, pipe_config
, modeset_pipes
,
11625 prepare_pipes
, disable_pipes
);
11628 intel_modeset_check_state(crtc
->dev
);
11633 static int intel_set_mode(struct drm_crtc
*crtc
,
11634 struct drm_display_mode
*mode
,
11635 int x
, int y
, struct drm_framebuffer
*fb
,
11636 struct drm_atomic_state
*state
)
11638 struct intel_crtc_state
*pipe_config
;
11639 unsigned modeset_pipes
, prepare_pipes
, disable_pipes
;
11642 pipe_config
= intel_modeset_compute_config(crtc
, mode
, fb
, state
,
11647 if (IS_ERR(pipe_config
)) {
11648 ret
= PTR_ERR(pipe_config
);
11652 ret
= intel_set_mode_pipes(crtc
, mode
, x
, y
, fb
, pipe_config
,
11653 modeset_pipes
, prepare_pipes
,
11662 void intel_crtc_restore_mode(struct drm_crtc
*crtc
)
11664 struct drm_device
*dev
= crtc
->dev
;
11665 struct drm_atomic_state
*state
;
11666 struct intel_encoder
*encoder
;
11667 struct intel_connector
*connector
;
11668 struct drm_connector_state
*connector_state
;
11670 state
= drm_atomic_state_alloc(dev
);
11672 DRM_DEBUG_KMS("[CRTC:%d] mode restore failed, out of memory",
11677 state
->acquire_ctx
= dev
->mode_config
.acquire_ctx
;
11679 /* The force restore path in the HW readout code relies on the staged
11680 * config still keeping the user requested config while the actual
11681 * state has been overwritten by the configuration read from HW. We
11682 * need to copy the staged config to the atomic state, otherwise the
11683 * mode set will just reapply the state the HW is already in. */
11684 for_each_intel_encoder(dev
, encoder
) {
11685 if (&encoder
->new_crtc
->base
!= crtc
)
11688 for_each_intel_connector(dev
, connector
) {
11689 if (connector
->new_encoder
!= encoder
)
11692 connector_state
= drm_atomic_get_connector_state(state
, &connector
->base
);
11693 if (IS_ERR(connector_state
)) {
11694 DRM_DEBUG_KMS("Failed to add [CONNECTOR:%d:%s] to state: %ld\n",
11695 connector
->base
.base
.id
,
11696 connector
->base
.name
,
11697 PTR_ERR(connector_state
));
11701 connector_state
->crtc
= crtc
;
11702 connector_state
->best_encoder
= &encoder
->base
;
11706 intel_set_mode(crtc
, &crtc
->mode
, crtc
->x
, crtc
->y
, crtc
->primary
->fb
,
11709 drm_atomic_state_free(state
);
11712 #undef for_each_intel_crtc_masked
11714 static void intel_set_config_free(struct intel_set_config
*config
)
11719 kfree(config
->save_connector_encoders
);
11720 kfree(config
->save_encoder_crtcs
);
11721 kfree(config
->save_crtc_enabled
);
11725 static int intel_set_config_save_state(struct drm_device
*dev
,
11726 struct intel_set_config
*config
)
11728 struct drm_crtc
*crtc
;
11729 struct drm_encoder
*encoder
;
11730 struct drm_connector
*connector
;
11733 config
->save_crtc_enabled
=
11734 kcalloc(dev
->mode_config
.num_crtc
,
11735 sizeof(bool), GFP_KERNEL
);
11736 if (!config
->save_crtc_enabled
)
11739 config
->save_encoder_crtcs
=
11740 kcalloc(dev
->mode_config
.num_encoder
,
11741 sizeof(struct drm_crtc
*), GFP_KERNEL
);
11742 if (!config
->save_encoder_crtcs
)
11745 config
->save_connector_encoders
=
11746 kcalloc(dev
->mode_config
.num_connector
,
11747 sizeof(struct drm_encoder
*), GFP_KERNEL
);
11748 if (!config
->save_connector_encoders
)
11751 /* Copy data. Note that driver private data is not affected.
11752 * Should anything bad happen only the expected state is
11753 * restored, not the drivers personal bookkeeping.
11756 for_each_crtc(dev
, crtc
) {
11757 config
->save_crtc_enabled
[count
++] = crtc
->state
->enable
;
11761 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
) {
11762 config
->save_encoder_crtcs
[count
++] = encoder
->crtc
;
11766 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
11767 config
->save_connector_encoders
[count
++] = connector
->encoder
;
11773 static void intel_set_config_restore_state(struct drm_device
*dev
,
11774 struct intel_set_config
*config
)
11776 struct intel_crtc
*crtc
;
11777 struct intel_encoder
*encoder
;
11778 struct intel_connector
*connector
;
11782 for_each_intel_crtc(dev
, crtc
) {
11783 crtc
->new_enabled
= config
->save_crtc_enabled
[count
++];
11785 if (crtc
->new_enabled
)
11786 crtc
->new_config
= crtc
->config
;
11788 crtc
->new_config
= NULL
;
11792 for_each_intel_encoder(dev
, encoder
) {
11793 encoder
->new_crtc
=
11794 to_intel_crtc(config
->save_encoder_crtcs
[count
++]);
11798 for_each_intel_connector(dev
, connector
) {
11799 connector
->new_encoder
=
11800 to_intel_encoder(config
->save_connector_encoders
[count
++]);
11805 is_crtc_connector_off(struct drm_mode_set
*set
)
11809 if (set
->num_connectors
== 0)
11812 if (WARN_ON(set
->connectors
== NULL
))
11815 for (i
= 0; i
< set
->num_connectors
; i
++)
11816 if (set
->connectors
[i
]->encoder
&&
11817 set
->connectors
[i
]->encoder
->crtc
== set
->crtc
&&
11818 set
->connectors
[i
]->dpms
!= DRM_MODE_DPMS_ON
)
11825 intel_set_config_compute_mode_changes(struct drm_mode_set
*set
,
11826 struct intel_set_config
*config
)
11829 /* We should be able to check here if the fb has the same properties
11830 * and then just flip_or_move it */
11831 if (is_crtc_connector_off(set
)) {
11832 config
->mode_changed
= true;
11833 } else if (set
->crtc
->primary
->fb
!= set
->fb
) {
11835 * If we have no fb, we can only flip as long as the crtc is
11836 * active, otherwise we need a full mode set. The crtc may
11837 * be active if we've only disabled the primary plane, or
11838 * in fastboot situations.
11840 if (set
->crtc
->primary
->fb
== NULL
) {
11841 struct intel_crtc
*intel_crtc
=
11842 to_intel_crtc(set
->crtc
);
11844 if (intel_crtc
->active
) {
11845 DRM_DEBUG_KMS("crtc has no fb, will flip\n");
11846 config
->fb_changed
= true;
11848 DRM_DEBUG_KMS("inactive crtc, full mode set\n");
11849 config
->mode_changed
= true;
11851 } else if (set
->fb
== NULL
) {
11852 config
->mode_changed
= true;
11853 } else if (set
->fb
->pixel_format
!=
11854 set
->crtc
->primary
->fb
->pixel_format
) {
11855 config
->mode_changed
= true;
11857 config
->fb_changed
= true;
11861 if (set
->fb
&& (set
->x
!= set
->crtc
->x
|| set
->y
!= set
->crtc
->y
))
11862 config
->fb_changed
= true;
11864 if (set
->mode
&& !drm_mode_equal(set
->mode
, &set
->crtc
->mode
)) {
11865 DRM_DEBUG_KMS("modes are different, full mode set\n");
11866 drm_mode_debug_printmodeline(&set
->crtc
->mode
);
11867 drm_mode_debug_printmodeline(set
->mode
);
11868 config
->mode_changed
= true;
11871 DRM_DEBUG_KMS("computed changes for [CRTC:%d], mode_changed=%d, fb_changed=%d\n",
11872 set
->crtc
->base
.id
, config
->mode_changed
, config
->fb_changed
);
11876 intel_modeset_stage_output_state(struct drm_device
*dev
,
11877 struct drm_mode_set
*set
,
11878 struct intel_set_config
*config
,
11879 struct drm_atomic_state
*state
)
11881 struct intel_connector
*connector
;
11882 struct drm_connector_state
*connector_state
;
11883 struct intel_encoder
*encoder
;
11884 struct intel_crtc
*crtc
;
11887 /* The upper layers ensure that we either disable a crtc or have a list
11888 * of connectors. For paranoia, double-check this. */
11889 WARN_ON(!set
->fb
&& (set
->num_connectors
!= 0));
11890 WARN_ON(set
->fb
&& (set
->num_connectors
== 0));
11892 for_each_intel_connector(dev
, connector
) {
11893 /* Otherwise traverse passed in connector list and get encoders
11895 for (ro
= 0; ro
< set
->num_connectors
; ro
++) {
11896 if (set
->connectors
[ro
] == &connector
->base
) {
11897 connector
->new_encoder
= intel_find_encoder(connector
, to_intel_crtc(set
->crtc
)->pipe
);
11902 /* If we disable the crtc, disable all its connectors. Also, if
11903 * the connector is on the changing crtc but not on the new
11904 * connector list, disable it. */
11905 if ((!set
->fb
|| ro
== set
->num_connectors
) &&
11906 connector
->base
.encoder
&&
11907 connector
->base
.encoder
->crtc
== set
->crtc
) {
11908 connector
->new_encoder
= NULL
;
11910 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
11911 connector
->base
.base
.id
,
11912 connector
->base
.name
);
11916 if (&connector
->new_encoder
->base
!= connector
->base
.encoder
) {
11917 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] encoder changed, full mode switch\n",
11918 connector
->base
.base
.id
,
11919 connector
->base
.name
);
11920 config
->mode_changed
= true;
11923 /* connector->new_encoder is now updated for all connectors. */
11925 /* Update crtc of enabled connectors. */
11926 for_each_intel_connector(dev
, connector
) {
11927 struct drm_crtc
*new_crtc
;
11929 if (!connector
->new_encoder
)
11932 new_crtc
= connector
->new_encoder
->base
.crtc
;
11934 for (ro
= 0; ro
< set
->num_connectors
; ro
++) {
11935 if (set
->connectors
[ro
] == &connector
->base
)
11936 new_crtc
= set
->crtc
;
11939 /* Make sure the new CRTC will work with the encoder */
11940 if (!drm_encoder_crtc_ok(&connector
->new_encoder
->base
,
11944 connector
->new_encoder
->new_crtc
= to_intel_crtc(new_crtc
);
11947 drm_atomic_get_connector_state(state
, &connector
->base
);
11948 if (IS_ERR(connector_state
))
11949 return PTR_ERR(connector_state
);
11951 connector_state
->crtc
= new_crtc
;
11952 connector_state
->best_encoder
= &connector
->new_encoder
->base
;
11954 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
11955 connector
->base
.base
.id
,
11956 connector
->base
.name
,
11957 new_crtc
->base
.id
);
11960 /* Check for any encoders that needs to be disabled. */
11961 for_each_intel_encoder(dev
, encoder
) {
11962 int num_connectors
= 0;
11963 for_each_intel_connector(dev
, connector
) {
11964 if (connector
->new_encoder
== encoder
) {
11965 WARN_ON(!connector
->new_encoder
->new_crtc
);
11970 if (num_connectors
== 0)
11971 encoder
->new_crtc
= NULL
;
11972 else if (num_connectors
> 1)
11975 /* Only now check for crtc changes so we don't miss encoders
11976 * that will be disabled. */
11977 if (&encoder
->new_crtc
->base
!= encoder
->base
.crtc
) {
11978 DRM_DEBUG_KMS("[ENCODER:%d:%s] crtc changed, full mode switch\n",
11979 encoder
->base
.base
.id
,
11980 encoder
->base
.name
);
11981 config
->mode_changed
= true;
11984 /* Now we've also updated encoder->new_crtc for all encoders. */
11985 for_each_intel_connector(dev
, connector
) {
11987 drm_atomic_get_connector_state(state
, &connector
->base
);
11988 if (IS_ERR(connector_state
))
11989 return PTR_ERR(connector_state
);
11991 if (connector
->new_encoder
) {
11992 if (connector
->new_encoder
!= connector
->encoder
)
11993 connector
->encoder
= connector
->new_encoder
;
11995 connector_state
->crtc
= NULL
;
11998 for_each_intel_crtc(dev
, crtc
) {
11999 crtc
->new_enabled
= false;
12001 for_each_intel_encoder(dev
, encoder
) {
12002 if (encoder
->new_crtc
== crtc
) {
12003 crtc
->new_enabled
= true;
12008 if (crtc
->new_enabled
!= crtc
->base
.state
->enable
) {
12009 DRM_DEBUG_KMS("[CRTC:%d] %sabled, full mode switch\n",
12010 crtc
->base
.base
.id
,
12011 crtc
->new_enabled
? "en" : "dis");
12012 config
->mode_changed
= true;
12015 if (crtc
->new_enabled
)
12016 crtc
->new_config
= crtc
->config
;
12018 crtc
->new_config
= NULL
;
12024 static void disable_crtc_nofb(struct intel_crtc
*crtc
)
12026 struct drm_device
*dev
= crtc
->base
.dev
;
12027 struct intel_encoder
*encoder
;
12028 struct intel_connector
*connector
;
12030 DRM_DEBUG_KMS("Trying to restore without FB -> disabling pipe %c\n",
12031 pipe_name(crtc
->pipe
));
12033 for_each_intel_connector(dev
, connector
) {
12034 if (connector
->new_encoder
&&
12035 connector
->new_encoder
->new_crtc
== crtc
)
12036 connector
->new_encoder
= NULL
;
12039 for_each_intel_encoder(dev
, encoder
) {
12040 if (encoder
->new_crtc
== crtc
)
12041 encoder
->new_crtc
= NULL
;
12044 crtc
->new_enabled
= false;
12045 crtc
->new_config
= NULL
;
12048 static int intel_crtc_set_config(struct drm_mode_set
*set
)
12050 struct drm_device
*dev
;
12051 struct drm_mode_set save_set
;
12052 struct drm_atomic_state
*state
= NULL
;
12053 struct intel_set_config
*config
;
12054 struct intel_crtc_state
*pipe_config
;
12055 unsigned modeset_pipes
, prepare_pipes
, disable_pipes
;
12059 BUG_ON(!set
->crtc
);
12060 BUG_ON(!set
->crtc
->helper_private
);
12062 /* Enforce sane interface api - has been abused by the fb helper. */
12063 BUG_ON(!set
->mode
&& set
->fb
);
12064 BUG_ON(set
->fb
&& set
->num_connectors
== 0);
12067 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
12068 set
->crtc
->base
.id
, set
->fb
->base
.id
,
12069 (int)set
->num_connectors
, set
->x
, set
->y
);
12071 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set
->crtc
->base
.id
);
12074 dev
= set
->crtc
->dev
;
12077 config
= kzalloc(sizeof(*config
), GFP_KERNEL
);
12081 ret
= intel_set_config_save_state(dev
, config
);
12085 save_set
.crtc
= set
->crtc
;
12086 save_set
.mode
= &set
->crtc
->mode
;
12087 save_set
.x
= set
->crtc
->x
;
12088 save_set
.y
= set
->crtc
->y
;
12089 save_set
.fb
= set
->crtc
->primary
->fb
;
12091 /* Compute whether we need a full modeset, only an fb base update or no
12092 * change at all. In the future we might also check whether only the
12093 * mode changed, e.g. for LVDS where we only change the panel fitter in
12095 intel_set_config_compute_mode_changes(set
, config
);
12097 state
= drm_atomic_state_alloc(dev
);
12103 state
->acquire_ctx
= dev
->mode_config
.acquire_ctx
;
12105 ret
= intel_modeset_stage_output_state(dev
, set
, config
, state
);
12109 pipe_config
= intel_modeset_compute_config(set
->crtc
, set
->mode
,
12114 if (IS_ERR(pipe_config
)) {
12115 ret
= PTR_ERR(pipe_config
);
12117 } else if (pipe_config
) {
12118 if (pipe_config
->has_audio
!=
12119 to_intel_crtc(set
->crtc
)->config
->has_audio
)
12120 config
->mode_changed
= true;
12123 * Note we have an issue here with infoframes: current code
12124 * only updates them on the full mode set path per hw
12125 * requirements. So here we should be checking for any
12126 * required changes and forcing a mode set.
12130 intel_update_pipe_size(to_intel_crtc(set
->crtc
));
12132 if (config
->mode_changed
) {
12133 ret
= intel_set_mode_pipes(set
->crtc
, set
->mode
,
12134 set
->x
, set
->y
, set
->fb
, pipe_config
,
12135 modeset_pipes
, prepare_pipes
,
12137 } else if (config
->fb_changed
) {
12138 struct intel_crtc
*intel_crtc
= to_intel_crtc(set
->crtc
);
12139 struct drm_plane
*primary
= set
->crtc
->primary
;
12140 int vdisplay
, hdisplay
;
12142 drm_crtc_get_hv_timing(set
->mode
, &hdisplay
, &vdisplay
);
12143 ret
= primary
->funcs
->update_plane(primary
, set
->crtc
, set
->fb
,
12144 0, 0, hdisplay
, vdisplay
,
12145 set
->x
<< 16, set
->y
<< 16,
12146 hdisplay
<< 16, vdisplay
<< 16);
12149 * We need to make sure the primary plane is re-enabled if it
12150 * has previously been turned off.
12152 if (!intel_crtc
->primary_enabled
&& ret
== 0) {
12153 WARN_ON(!intel_crtc
->active
);
12154 intel_enable_primary_hw_plane(set
->crtc
->primary
, set
->crtc
);
12158 * In the fastboot case this may be our only check of the
12159 * state after boot. It would be better to only do it on
12160 * the first update, but we don't have a nice way of doing that
12161 * (and really, set_config isn't used much for high freq page
12162 * flipping, so increasing its cost here shouldn't be a big
12165 if (i915
.fastboot
&& ret
== 0)
12166 intel_modeset_check_state(set
->crtc
->dev
);
12170 DRM_DEBUG_KMS("failed to set mode on [CRTC:%d], err = %d\n",
12171 set
->crtc
->base
.id
, ret
);
12173 intel_set_config_restore_state(dev
, config
);
12175 drm_atomic_state_clear(state
);
12178 * HACK: if the pipe was on, but we didn't have a framebuffer,
12179 * force the pipe off to avoid oopsing in the modeset code
12180 * due to fb==NULL. This should only happen during boot since
12181 * we don't yet reconstruct the FB from the hardware state.
12183 if (to_intel_crtc(save_set
.crtc
)->new_enabled
&& !save_set
.fb
)
12184 disable_crtc_nofb(to_intel_crtc(save_set
.crtc
));
12186 /* Try to restore the config */
12187 if (config
->mode_changed
&&
12188 intel_set_mode(save_set
.crtc
, save_set
.mode
,
12189 save_set
.x
, save_set
.y
, save_set
.fb
,
12191 DRM_ERROR("failed to restore config after modeset failure\n");
12196 drm_atomic_state_free(state
);
12198 intel_set_config_free(config
);
12202 static const struct drm_crtc_funcs intel_crtc_funcs
= {
12203 .gamma_set
= intel_crtc_gamma_set
,
12204 .set_config
= intel_crtc_set_config
,
12205 .destroy
= intel_crtc_destroy
,
12206 .page_flip
= intel_crtc_page_flip
,
12207 .atomic_duplicate_state
= intel_crtc_duplicate_state
,
12208 .atomic_destroy_state
= intel_crtc_destroy_state
,
12211 static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private
*dev_priv
,
12212 struct intel_shared_dpll
*pll
,
12213 struct intel_dpll_hw_state
*hw_state
)
12217 if (!intel_display_power_is_enabled(dev_priv
, POWER_DOMAIN_PLLS
))
12220 val
= I915_READ(PCH_DPLL(pll
->id
));
12221 hw_state
->dpll
= val
;
12222 hw_state
->fp0
= I915_READ(PCH_FP0(pll
->id
));
12223 hw_state
->fp1
= I915_READ(PCH_FP1(pll
->id
));
12225 return val
& DPLL_VCO_ENABLE
;
12228 static void ibx_pch_dpll_mode_set(struct drm_i915_private
*dev_priv
,
12229 struct intel_shared_dpll
*pll
)
12231 I915_WRITE(PCH_FP0(pll
->id
), pll
->config
.hw_state
.fp0
);
12232 I915_WRITE(PCH_FP1(pll
->id
), pll
->config
.hw_state
.fp1
);
12235 static void ibx_pch_dpll_enable(struct drm_i915_private
*dev_priv
,
12236 struct intel_shared_dpll
*pll
)
12238 /* PCH refclock must be enabled first */
12239 ibx_assert_pch_refclk_enabled(dev_priv
);
12241 I915_WRITE(PCH_DPLL(pll
->id
), pll
->config
.hw_state
.dpll
);
12243 /* Wait for the clocks to stabilize. */
12244 POSTING_READ(PCH_DPLL(pll
->id
));
12247 /* The pixel multiplier can only be updated once the
12248 * DPLL is enabled and the clocks are stable.
12250 * So write it again.
12252 I915_WRITE(PCH_DPLL(pll
->id
), pll
->config
.hw_state
.dpll
);
12253 POSTING_READ(PCH_DPLL(pll
->id
));
12257 static void ibx_pch_dpll_disable(struct drm_i915_private
*dev_priv
,
12258 struct intel_shared_dpll
*pll
)
12260 struct drm_device
*dev
= dev_priv
->dev
;
12261 struct intel_crtc
*crtc
;
12263 /* Make sure no transcoder isn't still depending on us. */
12264 for_each_intel_crtc(dev
, crtc
) {
12265 if (intel_crtc_to_shared_dpll(crtc
) == pll
)
12266 assert_pch_transcoder_disabled(dev_priv
, crtc
->pipe
);
12269 I915_WRITE(PCH_DPLL(pll
->id
), 0);
12270 POSTING_READ(PCH_DPLL(pll
->id
));
12274 static char *ibx_pch_dpll_names
[] = {
12279 static void ibx_pch_dpll_init(struct drm_device
*dev
)
12281 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12284 dev_priv
->num_shared_dpll
= 2;
12286 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
12287 dev_priv
->shared_dplls
[i
].id
= i
;
12288 dev_priv
->shared_dplls
[i
].name
= ibx_pch_dpll_names
[i
];
12289 dev_priv
->shared_dplls
[i
].mode_set
= ibx_pch_dpll_mode_set
;
12290 dev_priv
->shared_dplls
[i
].enable
= ibx_pch_dpll_enable
;
12291 dev_priv
->shared_dplls
[i
].disable
= ibx_pch_dpll_disable
;
12292 dev_priv
->shared_dplls
[i
].get_hw_state
=
12293 ibx_pch_dpll_get_hw_state
;
12297 static void intel_shared_dpll_init(struct drm_device
*dev
)
12299 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12302 intel_ddi_pll_init(dev
);
12303 else if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
12304 ibx_pch_dpll_init(dev
);
12306 dev_priv
->num_shared_dpll
= 0;
12308 BUG_ON(dev_priv
->num_shared_dpll
> I915_NUM_PLLS
);
12312 * intel_wm_need_update - Check whether watermarks need updating
12313 * @plane: drm plane
12314 * @state: new plane state
12316 * Check current plane state versus the new one to determine whether
12317 * watermarks need to be recalculated.
12319 * Returns true or false.
12321 bool intel_wm_need_update(struct drm_plane
*plane
,
12322 struct drm_plane_state
*state
)
12324 /* Update watermarks on tiling changes. */
12325 if (!plane
->state
->fb
|| !state
->fb
||
12326 plane
->state
->fb
->modifier
[0] != state
->fb
->modifier
[0] ||
12327 plane
->state
->rotation
!= state
->rotation
)
12334 * intel_prepare_plane_fb - Prepare fb for usage on plane
12335 * @plane: drm plane to prepare for
12336 * @fb: framebuffer to prepare for presentation
12338 * Prepares a framebuffer for usage on a display plane. Generally this
12339 * involves pinning the underlying object and updating the frontbuffer tracking
12340 * bits. Some older platforms need special physical address handling for
12343 * Returns 0 on success, negative error code on failure.
12346 intel_prepare_plane_fb(struct drm_plane
*plane
,
12347 struct drm_framebuffer
*fb
,
12348 const struct drm_plane_state
*new_state
)
12350 struct drm_device
*dev
= plane
->dev
;
12351 struct intel_plane
*intel_plane
= to_intel_plane(plane
);
12352 enum pipe pipe
= intel_plane
->pipe
;
12353 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
12354 struct drm_i915_gem_object
*old_obj
= intel_fb_obj(plane
->fb
);
12355 unsigned frontbuffer_bits
= 0;
12361 switch (plane
->type
) {
12362 case DRM_PLANE_TYPE_PRIMARY
:
12363 frontbuffer_bits
= INTEL_FRONTBUFFER_PRIMARY(pipe
);
12365 case DRM_PLANE_TYPE_CURSOR
:
12366 frontbuffer_bits
= INTEL_FRONTBUFFER_CURSOR(pipe
);
12368 case DRM_PLANE_TYPE_OVERLAY
:
12369 frontbuffer_bits
= INTEL_FRONTBUFFER_SPRITE(pipe
);
12373 mutex_lock(&dev
->struct_mutex
);
12375 if (plane
->type
== DRM_PLANE_TYPE_CURSOR
&&
12376 INTEL_INFO(dev
)->cursor_needs_physical
) {
12377 int align
= IS_I830(dev
) ? 16 * 1024 : 256;
12378 ret
= i915_gem_object_attach_phys(obj
, align
);
12380 DRM_DEBUG_KMS("failed to attach phys object\n");
12382 ret
= intel_pin_and_fence_fb_obj(plane
, fb
, new_state
, NULL
);
12386 i915_gem_track_fb(old_obj
, obj
, frontbuffer_bits
);
12388 mutex_unlock(&dev
->struct_mutex
);
12394 * intel_cleanup_plane_fb - Cleans up an fb after plane use
12395 * @plane: drm plane to clean up for
12396 * @fb: old framebuffer that was on plane
12398 * Cleans up a framebuffer that has just been removed from a plane.
12401 intel_cleanup_plane_fb(struct drm_plane
*plane
,
12402 struct drm_framebuffer
*fb
,
12403 const struct drm_plane_state
*old_state
)
12405 struct drm_device
*dev
= plane
->dev
;
12406 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
12411 if (plane
->type
!= DRM_PLANE_TYPE_CURSOR
||
12412 !INTEL_INFO(dev
)->cursor_needs_physical
) {
12413 mutex_lock(&dev
->struct_mutex
);
12414 intel_unpin_fb_obj(fb
, old_state
);
12415 mutex_unlock(&dev
->struct_mutex
);
12420 intel_check_primary_plane(struct drm_plane
*plane
,
12421 struct intel_plane_state
*state
)
12423 struct drm_device
*dev
= plane
->dev
;
12424 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12425 struct drm_crtc
*crtc
= state
->base
.crtc
;
12426 struct intel_crtc
*intel_crtc
;
12427 struct drm_framebuffer
*fb
= state
->base
.fb
;
12428 struct drm_rect
*dest
= &state
->dst
;
12429 struct drm_rect
*src
= &state
->src
;
12430 const struct drm_rect
*clip
= &state
->clip
;
12433 crtc
= crtc
? crtc
: plane
->crtc
;
12434 intel_crtc
= to_intel_crtc(crtc
);
12436 ret
= drm_plane_helper_check_update(plane
, crtc
, fb
,
12438 DRM_PLANE_HELPER_NO_SCALING
,
12439 DRM_PLANE_HELPER_NO_SCALING
,
12440 false, true, &state
->visible
);
12444 if (intel_crtc
->active
) {
12445 intel_crtc
->atomic
.wait_for_flips
= true;
12448 * FBC does not work on some platforms for rotated
12449 * planes, so disable it when rotation is not 0 and
12450 * update it when rotation is set back to 0.
12452 * FIXME: This is redundant with the fbc update done in
12453 * the primary plane enable function except that that
12454 * one is done too late. We eventually need to unify
12457 if (intel_crtc
->primary_enabled
&&
12458 INTEL_INFO(dev
)->gen
<= 4 && !IS_G4X(dev
) &&
12459 dev_priv
->fbc
.crtc
== intel_crtc
&&
12460 state
->base
.rotation
!= BIT(DRM_ROTATE_0
)) {
12461 intel_crtc
->atomic
.disable_fbc
= true;
12464 if (state
->visible
) {
12466 * BDW signals flip done immediately if the plane
12467 * is disabled, even if the plane enable is already
12468 * armed to occur at the next vblank :(
12470 if (IS_BROADWELL(dev
) && !intel_crtc
->primary_enabled
)
12471 intel_crtc
->atomic
.wait_vblank
= true;
12474 intel_crtc
->atomic
.fb_bits
|=
12475 INTEL_FRONTBUFFER_PRIMARY(intel_crtc
->pipe
);
12477 intel_crtc
->atomic
.update_fbc
= true;
12479 if (intel_wm_need_update(plane
, &state
->base
))
12480 intel_crtc
->atomic
.update_wm
= true;
12487 intel_commit_primary_plane(struct drm_plane
*plane
,
12488 struct intel_plane_state
*state
)
12490 struct drm_crtc
*crtc
= state
->base
.crtc
;
12491 struct drm_framebuffer
*fb
= state
->base
.fb
;
12492 struct drm_device
*dev
= plane
->dev
;
12493 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12494 struct intel_crtc
*intel_crtc
;
12495 struct drm_rect
*src
= &state
->src
;
12497 crtc
= crtc
? crtc
: plane
->crtc
;
12498 intel_crtc
= to_intel_crtc(crtc
);
12501 crtc
->x
= src
->x1
>> 16;
12502 crtc
->y
= src
->y1
>> 16;
12504 if (intel_crtc
->active
) {
12505 if (state
->visible
) {
12506 /* FIXME: kill this fastboot hack */
12507 intel_update_pipe_size(intel_crtc
);
12509 intel_crtc
->primary_enabled
= true;
12511 dev_priv
->display
.update_primary_plane(crtc
, plane
->fb
,
12515 * If clipping results in a non-visible primary plane,
12516 * we'll disable the primary plane. Note that this is
12517 * a bit different than what happens if userspace
12518 * explicitly disables the plane by passing fb=0
12519 * because plane->fb still gets set and pinned.
12521 intel_disable_primary_hw_plane(plane
, crtc
);
12526 static void intel_begin_crtc_commit(struct drm_crtc
*crtc
)
12528 struct drm_device
*dev
= crtc
->dev
;
12529 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12530 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
12531 struct intel_plane
*intel_plane
;
12532 struct drm_plane
*p
;
12533 unsigned fb_bits
= 0;
12535 /* Track fb's for any planes being disabled */
12536 list_for_each_entry(p
, &dev
->mode_config
.plane_list
, head
) {
12537 intel_plane
= to_intel_plane(p
);
12539 if (intel_crtc
->atomic
.disabled_planes
&
12540 (1 << drm_plane_index(p
))) {
12542 case DRM_PLANE_TYPE_PRIMARY
:
12543 fb_bits
= INTEL_FRONTBUFFER_PRIMARY(intel_plane
->pipe
);
12545 case DRM_PLANE_TYPE_CURSOR
:
12546 fb_bits
= INTEL_FRONTBUFFER_CURSOR(intel_plane
->pipe
);
12548 case DRM_PLANE_TYPE_OVERLAY
:
12549 fb_bits
= INTEL_FRONTBUFFER_SPRITE(intel_plane
->pipe
);
12553 mutex_lock(&dev
->struct_mutex
);
12554 i915_gem_track_fb(intel_fb_obj(p
->fb
), NULL
, fb_bits
);
12555 mutex_unlock(&dev
->struct_mutex
);
12559 if (intel_crtc
->atomic
.wait_for_flips
)
12560 intel_crtc_wait_for_pending_flips(crtc
);
12562 if (intel_crtc
->atomic
.disable_fbc
)
12563 intel_fbc_disable(dev
);
12565 if (intel_crtc
->atomic
.pre_disable_primary
)
12566 intel_pre_disable_primary(crtc
);
12568 if (intel_crtc
->atomic
.update_wm
)
12569 intel_update_watermarks(crtc
);
12571 intel_runtime_pm_get(dev_priv
);
12573 /* Perform vblank evasion around commit operation */
12574 if (intel_crtc
->active
)
12575 intel_crtc
->atomic
.evade
=
12576 intel_pipe_update_start(intel_crtc
,
12577 &intel_crtc
->atomic
.start_vbl_count
);
12580 static void intel_finish_crtc_commit(struct drm_crtc
*crtc
)
12582 struct drm_device
*dev
= crtc
->dev
;
12583 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12584 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
12585 struct drm_plane
*p
;
12587 if (intel_crtc
->atomic
.evade
)
12588 intel_pipe_update_end(intel_crtc
,
12589 intel_crtc
->atomic
.start_vbl_count
);
12591 intel_runtime_pm_put(dev_priv
);
12593 if (intel_crtc
->atomic
.wait_vblank
)
12594 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
12596 intel_frontbuffer_flip(dev
, intel_crtc
->atomic
.fb_bits
);
12598 if (intel_crtc
->atomic
.update_fbc
) {
12599 mutex_lock(&dev
->struct_mutex
);
12600 intel_fbc_update(dev
);
12601 mutex_unlock(&dev
->struct_mutex
);
12604 if (intel_crtc
->atomic
.post_enable_primary
)
12605 intel_post_enable_primary(crtc
);
12607 drm_for_each_legacy_plane(p
, &dev
->mode_config
.plane_list
)
12608 if (intel_crtc
->atomic
.update_sprite_watermarks
& drm_plane_index(p
))
12609 intel_update_sprite_watermarks(p
, crtc
, 0, 0, 0,
12612 memset(&intel_crtc
->atomic
, 0, sizeof(intel_crtc
->atomic
));
12616 * intel_plane_destroy - destroy a plane
12617 * @plane: plane to destroy
12619 * Common destruction function for all types of planes (primary, cursor,
12622 void intel_plane_destroy(struct drm_plane
*plane
)
12624 struct intel_plane
*intel_plane
= to_intel_plane(plane
);
12625 drm_plane_cleanup(plane
);
12626 kfree(intel_plane
);
12629 const struct drm_plane_funcs intel_plane_funcs
= {
12630 .update_plane
= drm_plane_helper_update
,
12631 .disable_plane
= drm_plane_helper_disable
,
12632 .destroy
= intel_plane_destroy
,
12633 .set_property
= drm_atomic_helper_plane_set_property
,
12634 .atomic_get_property
= intel_plane_atomic_get_property
,
12635 .atomic_set_property
= intel_plane_atomic_set_property
,
12636 .atomic_duplicate_state
= intel_plane_duplicate_state
,
12637 .atomic_destroy_state
= intel_plane_destroy_state
,
12641 static struct drm_plane
*intel_primary_plane_create(struct drm_device
*dev
,
12644 struct intel_plane
*primary
;
12645 struct intel_plane_state
*state
;
12646 const uint32_t *intel_primary_formats
;
12649 primary
= kzalloc(sizeof(*primary
), GFP_KERNEL
);
12650 if (primary
== NULL
)
12653 state
= intel_create_plane_state(&primary
->base
);
12658 primary
->base
.state
= &state
->base
;
12660 primary
->can_scale
= false;
12661 primary
->max_downscale
= 1;
12662 primary
->pipe
= pipe
;
12663 primary
->plane
= pipe
;
12664 primary
->check_plane
= intel_check_primary_plane
;
12665 primary
->commit_plane
= intel_commit_primary_plane
;
12666 if (HAS_FBC(dev
) && INTEL_INFO(dev
)->gen
< 4)
12667 primary
->plane
= !pipe
;
12669 if (INTEL_INFO(dev
)->gen
<= 3) {
12670 intel_primary_formats
= intel_primary_formats_gen2
;
12671 num_formats
= ARRAY_SIZE(intel_primary_formats_gen2
);
12673 intel_primary_formats
= intel_primary_formats_gen4
;
12674 num_formats
= ARRAY_SIZE(intel_primary_formats_gen4
);
12677 drm_universal_plane_init(dev
, &primary
->base
, 0,
12678 &intel_plane_funcs
,
12679 intel_primary_formats
, num_formats
,
12680 DRM_PLANE_TYPE_PRIMARY
);
12682 if (INTEL_INFO(dev
)->gen
>= 4) {
12683 if (!dev
->mode_config
.rotation_property
)
12684 dev
->mode_config
.rotation_property
=
12685 drm_mode_create_rotation_property(dev
,
12686 BIT(DRM_ROTATE_0
) |
12687 BIT(DRM_ROTATE_180
));
12688 if (dev
->mode_config
.rotation_property
)
12689 drm_object_attach_property(&primary
->base
.base
,
12690 dev
->mode_config
.rotation_property
,
12691 state
->base
.rotation
);
12694 drm_plane_helper_add(&primary
->base
, &intel_plane_helper_funcs
);
12696 return &primary
->base
;
12700 intel_check_cursor_plane(struct drm_plane
*plane
,
12701 struct intel_plane_state
*state
)
12703 struct drm_crtc
*crtc
= state
->base
.crtc
;
12704 struct drm_device
*dev
= plane
->dev
;
12705 struct drm_framebuffer
*fb
= state
->base
.fb
;
12706 struct drm_rect
*dest
= &state
->dst
;
12707 struct drm_rect
*src
= &state
->src
;
12708 const struct drm_rect
*clip
= &state
->clip
;
12709 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
12710 struct intel_crtc
*intel_crtc
;
12714 crtc
= crtc
? crtc
: plane
->crtc
;
12715 intel_crtc
= to_intel_crtc(crtc
);
12717 ret
= drm_plane_helper_check_update(plane
, crtc
, fb
,
12719 DRM_PLANE_HELPER_NO_SCALING
,
12720 DRM_PLANE_HELPER_NO_SCALING
,
12721 true, true, &state
->visible
);
12726 /* if we want to turn off the cursor ignore width and height */
12730 /* Check for which cursor types we support */
12731 if (!cursor_size_ok(dev
, state
->base
.crtc_w
, state
->base
.crtc_h
)) {
12732 DRM_DEBUG("Cursor dimension %dx%d not supported\n",
12733 state
->base
.crtc_w
, state
->base
.crtc_h
);
12737 stride
= roundup_pow_of_two(state
->base
.crtc_w
) * 4;
12738 if (obj
->base
.size
< stride
* state
->base
.crtc_h
) {
12739 DRM_DEBUG_KMS("buffer is too small\n");
12743 if (fb
->modifier
[0] != DRM_FORMAT_MOD_NONE
) {
12744 DRM_DEBUG_KMS("cursor cannot be tiled\n");
12749 if (intel_crtc
->active
) {
12750 if (plane
->state
->crtc_w
!= state
->base
.crtc_w
)
12751 intel_crtc
->atomic
.update_wm
= true;
12753 intel_crtc
->atomic
.fb_bits
|=
12754 INTEL_FRONTBUFFER_CURSOR(intel_crtc
->pipe
);
12761 intel_commit_cursor_plane(struct drm_plane
*plane
,
12762 struct intel_plane_state
*state
)
12764 struct drm_crtc
*crtc
= state
->base
.crtc
;
12765 struct drm_device
*dev
= plane
->dev
;
12766 struct intel_crtc
*intel_crtc
;
12767 struct drm_i915_gem_object
*obj
= intel_fb_obj(state
->base
.fb
);
12770 crtc
= crtc
? crtc
: plane
->crtc
;
12771 intel_crtc
= to_intel_crtc(crtc
);
12773 plane
->fb
= state
->base
.fb
;
12774 crtc
->cursor_x
= state
->base
.crtc_x
;
12775 crtc
->cursor_y
= state
->base
.crtc_y
;
12777 if (intel_crtc
->cursor_bo
== obj
)
12782 else if (!INTEL_INFO(dev
)->cursor_needs_physical
)
12783 addr
= i915_gem_obj_ggtt_offset(obj
);
12785 addr
= obj
->phys_handle
->busaddr
;
12787 intel_crtc
->cursor_addr
= addr
;
12788 intel_crtc
->cursor_bo
= obj
;
12791 if (intel_crtc
->active
)
12792 intel_crtc_update_cursor(crtc
, state
->visible
);
12795 static struct drm_plane
*intel_cursor_plane_create(struct drm_device
*dev
,
12798 struct intel_plane
*cursor
;
12799 struct intel_plane_state
*state
;
12801 cursor
= kzalloc(sizeof(*cursor
), GFP_KERNEL
);
12802 if (cursor
== NULL
)
12805 state
= intel_create_plane_state(&cursor
->base
);
12810 cursor
->base
.state
= &state
->base
;
12812 cursor
->can_scale
= false;
12813 cursor
->max_downscale
= 1;
12814 cursor
->pipe
= pipe
;
12815 cursor
->plane
= pipe
;
12816 cursor
->check_plane
= intel_check_cursor_plane
;
12817 cursor
->commit_plane
= intel_commit_cursor_plane
;
12819 drm_universal_plane_init(dev
, &cursor
->base
, 0,
12820 &intel_plane_funcs
,
12821 intel_cursor_formats
,
12822 ARRAY_SIZE(intel_cursor_formats
),
12823 DRM_PLANE_TYPE_CURSOR
);
12825 if (INTEL_INFO(dev
)->gen
>= 4) {
12826 if (!dev
->mode_config
.rotation_property
)
12827 dev
->mode_config
.rotation_property
=
12828 drm_mode_create_rotation_property(dev
,
12829 BIT(DRM_ROTATE_0
) |
12830 BIT(DRM_ROTATE_180
));
12831 if (dev
->mode_config
.rotation_property
)
12832 drm_object_attach_property(&cursor
->base
.base
,
12833 dev
->mode_config
.rotation_property
,
12834 state
->base
.rotation
);
12837 drm_plane_helper_add(&cursor
->base
, &intel_plane_helper_funcs
);
12839 return &cursor
->base
;
12842 static void intel_crtc_init(struct drm_device
*dev
, int pipe
)
12844 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12845 struct intel_crtc
*intel_crtc
;
12846 struct intel_crtc_state
*crtc_state
= NULL
;
12847 struct drm_plane
*primary
= NULL
;
12848 struct drm_plane
*cursor
= NULL
;
12851 intel_crtc
= kzalloc(sizeof(*intel_crtc
), GFP_KERNEL
);
12852 if (intel_crtc
== NULL
)
12855 crtc_state
= kzalloc(sizeof(*crtc_state
), GFP_KERNEL
);
12858 intel_crtc_set_state(intel_crtc
, crtc_state
);
12859 crtc_state
->base
.crtc
= &intel_crtc
->base
;
12861 primary
= intel_primary_plane_create(dev
, pipe
);
12865 cursor
= intel_cursor_plane_create(dev
, pipe
);
12869 ret
= drm_crtc_init_with_planes(dev
, &intel_crtc
->base
, primary
,
12870 cursor
, &intel_crtc_funcs
);
12874 drm_mode_crtc_set_gamma_size(&intel_crtc
->base
, 256);
12875 for (i
= 0; i
< 256; i
++) {
12876 intel_crtc
->lut_r
[i
] = i
;
12877 intel_crtc
->lut_g
[i
] = i
;
12878 intel_crtc
->lut_b
[i
] = i
;
12882 * On gen2/3 only plane A can do fbc, but the panel fitter and lvds port
12883 * is hooked to pipe B. Hence we want plane A feeding pipe B.
12885 intel_crtc
->pipe
= pipe
;
12886 intel_crtc
->plane
= pipe
;
12887 if (HAS_FBC(dev
) && INTEL_INFO(dev
)->gen
< 4) {
12888 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
12889 intel_crtc
->plane
= !pipe
;
12892 intel_crtc
->cursor_base
= ~0;
12893 intel_crtc
->cursor_cntl
= ~0;
12894 intel_crtc
->cursor_size
= ~0;
12896 BUG_ON(pipe
>= ARRAY_SIZE(dev_priv
->plane_to_crtc_mapping
) ||
12897 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] != NULL
);
12898 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] = &intel_crtc
->base
;
12899 dev_priv
->pipe_to_crtc_mapping
[intel_crtc
->pipe
] = &intel_crtc
->base
;
12901 INIT_WORK(&intel_crtc
->mmio_flip
.work
, intel_mmio_flip_work_func
);
12903 drm_crtc_helper_add(&intel_crtc
->base
, &intel_helper_funcs
);
12905 WARN_ON(drm_crtc_index(&intel_crtc
->base
) != intel_crtc
->pipe
);
12910 drm_plane_cleanup(primary
);
12912 drm_plane_cleanup(cursor
);
12917 enum pipe
intel_get_pipe_from_connector(struct intel_connector
*connector
)
12919 struct drm_encoder
*encoder
= connector
->base
.encoder
;
12920 struct drm_device
*dev
= connector
->base
.dev
;
12922 WARN_ON(!drm_modeset_is_locked(&dev
->mode_config
.connection_mutex
));
12924 if (!encoder
|| WARN_ON(!encoder
->crtc
))
12925 return INVALID_PIPE
;
12927 return to_intel_crtc(encoder
->crtc
)->pipe
;
12930 int intel_get_pipe_from_crtc_id(struct drm_device
*dev
, void *data
,
12931 struct drm_file
*file
)
12933 struct drm_i915_get_pipe_from_crtc_id
*pipe_from_crtc_id
= data
;
12934 struct drm_crtc
*drmmode_crtc
;
12935 struct intel_crtc
*crtc
;
12937 drmmode_crtc
= drm_crtc_find(dev
, pipe_from_crtc_id
->crtc_id
);
12939 if (!drmmode_crtc
) {
12940 DRM_ERROR("no such CRTC id\n");
12944 crtc
= to_intel_crtc(drmmode_crtc
);
12945 pipe_from_crtc_id
->pipe
= crtc
->pipe
;
12950 static int intel_encoder_clones(struct intel_encoder
*encoder
)
12952 struct drm_device
*dev
= encoder
->base
.dev
;
12953 struct intel_encoder
*source_encoder
;
12954 int index_mask
= 0;
12957 for_each_intel_encoder(dev
, source_encoder
) {
12958 if (encoders_cloneable(encoder
, source_encoder
))
12959 index_mask
|= (1 << entry
);
12967 static bool has_edp_a(struct drm_device
*dev
)
12969 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12971 if (!IS_MOBILE(dev
))
12974 if ((I915_READ(DP_A
) & DP_DETECTED
) == 0)
12977 if (IS_GEN5(dev
) && (I915_READ(FUSE_STRAP
) & ILK_eDP_A_DISABLE
))
12983 static bool intel_crt_present(struct drm_device
*dev
)
12985 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12987 if (INTEL_INFO(dev
)->gen
>= 9)
12990 if (IS_HSW_ULT(dev
) || IS_BDW_ULT(dev
))
12993 if (IS_CHERRYVIEW(dev
))
12996 if (IS_VALLEYVIEW(dev
) && !dev_priv
->vbt
.int_crt_support
)
13002 static void intel_setup_outputs(struct drm_device
*dev
)
13004 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13005 struct intel_encoder
*encoder
;
13006 struct drm_connector
*connector
;
13007 bool dpd_is_edp
= false;
13009 intel_lvds_init(dev
);
13011 if (intel_crt_present(dev
))
13012 intel_crt_init(dev
);
13014 if (HAS_DDI(dev
)) {
13018 * Haswell uses DDI functions to detect digital outputs.
13019 * On SKL pre-D0 the strap isn't connected, so we assume
13022 found
= I915_READ(DDI_BUF_CTL_A
) & DDI_INIT_DISPLAY_DETECTED
;
13023 /* WaIgnoreDDIAStrap: skl */
13025 (IS_SKYLAKE(dev
) && INTEL_REVID(dev
) < SKL_REVID_D0
))
13026 intel_ddi_init(dev
, PORT_A
);
13028 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
13030 found
= I915_READ(SFUSE_STRAP
);
13032 if (found
& SFUSE_STRAP_DDIB_DETECTED
)
13033 intel_ddi_init(dev
, PORT_B
);
13034 if (found
& SFUSE_STRAP_DDIC_DETECTED
)
13035 intel_ddi_init(dev
, PORT_C
);
13036 if (found
& SFUSE_STRAP_DDID_DETECTED
)
13037 intel_ddi_init(dev
, PORT_D
);
13038 } else if (HAS_PCH_SPLIT(dev
)) {
13040 dpd_is_edp
= intel_dp_is_edp(dev
, PORT_D
);
13042 if (has_edp_a(dev
))
13043 intel_dp_init(dev
, DP_A
, PORT_A
);
13045 if (I915_READ(PCH_HDMIB
) & SDVO_DETECTED
) {
13046 /* PCH SDVOB multiplex with HDMIB */
13047 found
= intel_sdvo_init(dev
, PCH_SDVOB
, true);
13049 intel_hdmi_init(dev
, PCH_HDMIB
, PORT_B
);
13050 if (!found
&& (I915_READ(PCH_DP_B
) & DP_DETECTED
))
13051 intel_dp_init(dev
, PCH_DP_B
, PORT_B
);
13054 if (I915_READ(PCH_HDMIC
) & SDVO_DETECTED
)
13055 intel_hdmi_init(dev
, PCH_HDMIC
, PORT_C
);
13057 if (!dpd_is_edp
&& I915_READ(PCH_HDMID
) & SDVO_DETECTED
)
13058 intel_hdmi_init(dev
, PCH_HDMID
, PORT_D
);
13060 if (I915_READ(PCH_DP_C
) & DP_DETECTED
)
13061 intel_dp_init(dev
, PCH_DP_C
, PORT_C
);
13063 if (I915_READ(PCH_DP_D
) & DP_DETECTED
)
13064 intel_dp_init(dev
, PCH_DP_D
, PORT_D
);
13065 } else if (IS_VALLEYVIEW(dev
)) {
13067 * The DP_DETECTED bit is the latched state of the DDC
13068 * SDA pin at boot. However since eDP doesn't require DDC
13069 * (no way to plug in a DP->HDMI dongle) the DDC pins for
13070 * eDP ports may have been muxed to an alternate function.
13071 * Thus we can't rely on the DP_DETECTED bit alone to detect
13072 * eDP ports. Consult the VBT as well as DP_DETECTED to
13073 * detect eDP ports.
13075 if (I915_READ(VLV_DISPLAY_BASE
+ GEN4_HDMIB
) & SDVO_DETECTED
&&
13076 !intel_dp_is_edp(dev
, PORT_B
))
13077 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ GEN4_HDMIB
,
13079 if (I915_READ(VLV_DISPLAY_BASE
+ DP_B
) & DP_DETECTED
||
13080 intel_dp_is_edp(dev
, PORT_B
))
13081 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_B
, PORT_B
);
13083 if (I915_READ(VLV_DISPLAY_BASE
+ GEN4_HDMIC
) & SDVO_DETECTED
&&
13084 !intel_dp_is_edp(dev
, PORT_C
))
13085 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ GEN4_HDMIC
,
13087 if (I915_READ(VLV_DISPLAY_BASE
+ DP_C
) & DP_DETECTED
||
13088 intel_dp_is_edp(dev
, PORT_C
))
13089 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_C
, PORT_C
);
13091 if (IS_CHERRYVIEW(dev
)) {
13092 if (I915_READ(VLV_DISPLAY_BASE
+ CHV_HDMID
) & SDVO_DETECTED
)
13093 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ CHV_HDMID
,
13095 /* eDP not supported on port D, so don't check VBT */
13096 if (I915_READ(VLV_DISPLAY_BASE
+ DP_D
) & DP_DETECTED
)
13097 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_D
, PORT_D
);
13100 intel_dsi_init(dev
);
13101 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev
)) {
13102 bool found
= false;
13104 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
13105 DRM_DEBUG_KMS("probing SDVOB\n");
13106 found
= intel_sdvo_init(dev
, GEN3_SDVOB
, true);
13107 if (!found
&& SUPPORTS_INTEGRATED_HDMI(dev
)) {
13108 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
13109 intel_hdmi_init(dev
, GEN4_HDMIB
, PORT_B
);
13112 if (!found
&& SUPPORTS_INTEGRATED_DP(dev
))
13113 intel_dp_init(dev
, DP_B
, PORT_B
);
13116 /* Before G4X SDVOC doesn't have its own detect register */
13118 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
13119 DRM_DEBUG_KMS("probing SDVOC\n");
13120 found
= intel_sdvo_init(dev
, GEN3_SDVOC
, false);
13123 if (!found
&& (I915_READ(GEN3_SDVOC
) & SDVO_DETECTED
)) {
13125 if (SUPPORTS_INTEGRATED_HDMI(dev
)) {
13126 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
13127 intel_hdmi_init(dev
, GEN4_HDMIC
, PORT_C
);
13129 if (SUPPORTS_INTEGRATED_DP(dev
))
13130 intel_dp_init(dev
, DP_C
, PORT_C
);
13133 if (SUPPORTS_INTEGRATED_DP(dev
) &&
13134 (I915_READ(DP_D
) & DP_DETECTED
))
13135 intel_dp_init(dev
, DP_D
, PORT_D
);
13136 } else if (IS_GEN2(dev
))
13137 intel_dvo_init(dev
);
13139 if (SUPPORTS_TV(dev
))
13140 intel_tv_init(dev
);
13143 * FIXME: We don't have full atomic support yet, but we want to be
13144 * able to enable/test plane updates via the atomic interface in the
13145 * meantime. However as soon as we flip DRIVER_ATOMIC on, the DRM core
13146 * will take some atomic codepaths to lookup properties during
13147 * drmModeGetConnector() that unconditionally dereference
13148 * connector->state.
13150 * We create a dummy connector state here for each connector to ensure
13151 * the DRM core doesn't try to dereference a NULL connector->state.
13152 * The actual connector properties will never be updated or contain
13153 * useful information, but since we're doing this specifically for
13154 * testing/debug of the plane operations (and only when a specific
13155 * kernel module option is given), that shouldn't really matter.
13157 * We are also relying on these states to convert the legacy mode set
13158 * to use a drm_atomic_state struct. The states are kept consistent
13159 * with actual state, so that it is safe to rely on that instead of
13160 * the staged config.
13162 * Once atomic support for crtc's + connectors lands, this loop should
13163 * be removed since we'll be setting up real connector state, which
13164 * will contain Intel-specific properties.
13166 list_for_each_entry(connector
,
13167 &dev
->mode_config
.connector_list
,
13169 if (!WARN_ON(connector
->state
)) {
13170 connector
->state
= kzalloc(sizeof(*connector
->state
),
13175 intel_psr_init(dev
);
13177 for_each_intel_encoder(dev
, encoder
) {
13178 encoder
->base
.possible_crtcs
= encoder
->crtc_mask
;
13179 encoder
->base
.possible_clones
=
13180 intel_encoder_clones(encoder
);
13183 intel_init_pch_refclk(dev
);
13185 drm_helper_move_panel_connectors_to_head(dev
);
13188 static void intel_user_framebuffer_destroy(struct drm_framebuffer
*fb
)
13190 struct drm_device
*dev
= fb
->dev
;
13191 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
13193 drm_framebuffer_cleanup(fb
);
13194 mutex_lock(&dev
->struct_mutex
);
13195 WARN_ON(!intel_fb
->obj
->framebuffer_references
--);
13196 drm_gem_object_unreference(&intel_fb
->obj
->base
);
13197 mutex_unlock(&dev
->struct_mutex
);
13201 static int intel_user_framebuffer_create_handle(struct drm_framebuffer
*fb
,
13202 struct drm_file
*file
,
13203 unsigned int *handle
)
13205 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
13206 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
13208 return drm_gem_handle_create(file
, &obj
->base
, handle
);
13211 static const struct drm_framebuffer_funcs intel_fb_funcs
= {
13212 .destroy
= intel_user_framebuffer_destroy
,
13213 .create_handle
= intel_user_framebuffer_create_handle
,
13217 u32
intel_fb_pitch_limit(struct drm_device
*dev
, uint64_t fb_modifier
,
13218 uint32_t pixel_format
)
13220 u32 gen
= INTEL_INFO(dev
)->gen
;
13223 /* "The stride in bytes must not exceed the of the size of 8K
13224 * pixels and 32K bytes."
13226 return min(8192*drm_format_plane_cpp(pixel_format
, 0), 32768);
13227 } else if (gen
>= 5 && !IS_VALLEYVIEW(dev
)) {
13229 } else if (gen
>= 4) {
13230 if (fb_modifier
== I915_FORMAT_MOD_X_TILED
)
13234 } else if (gen
>= 3) {
13235 if (fb_modifier
== I915_FORMAT_MOD_X_TILED
)
13240 /* XXX DSPC is limited to 4k tiled */
13245 static int intel_framebuffer_init(struct drm_device
*dev
,
13246 struct intel_framebuffer
*intel_fb
,
13247 struct drm_mode_fb_cmd2
*mode_cmd
,
13248 struct drm_i915_gem_object
*obj
)
13250 unsigned int aligned_height
;
13252 u32 pitch_limit
, stride_alignment
;
13254 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
13256 if (mode_cmd
->flags
& DRM_MODE_FB_MODIFIERS
) {
13257 /* Enforce that fb modifier and tiling mode match, but only for
13258 * X-tiled. This is needed for FBC. */
13259 if (!!(obj
->tiling_mode
== I915_TILING_X
) !=
13260 !!(mode_cmd
->modifier
[0] == I915_FORMAT_MOD_X_TILED
)) {
13261 DRM_DEBUG("tiling_mode doesn't match fb modifier\n");
13265 if (obj
->tiling_mode
== I915_TILING_X
)
13266 mode_cmd
->modifier
[0] = I915_FORMAT_MOD_X_TILED
;
13267 else if (obj
->tiling_mode
== I915_TILING_Y
) {
13268 DRM_DEBUG("No Y tiling for legacy addfb\n");
13273 /* Passed in modifier sanity checking. */
13274 switch (mode_cmd
->modifier
[0]) {
13275 case I915_FORMAT_MOD_Y_TILED
:
13276 case I915_FORMAT_MOD_Yf_TILED
:
13277 if (INTEL_INFO(dev
)->gen
< 9) {
13278 DRM_DEBUG("Unsupported tiling 0x%llx!\n",
13279 mode_cmd
->modifier
[0]);
13282 case DRM_FORMAT_MOD_NONE
:
13283 case I915_FORMAT_MOD_X_TILED
:
13286 DRM_DEBUG("Unsupported fb modifier 0x%llx!\n",
13287 mode_cmd
->modifier
[0]);
13291 stride_alignment
= intel_fb_stride_alignment(dev
, mode_cmd
->modifier
[0],
13292 mode_cmd
->pixel_format
);
13293 if (mode_cmd
->pitches
[0] & (stride_alignment
- 1)) {
13294 DRM_DEBUG("pitch (%d) must be at least %u byte aligned\n",
13295 mode_cmd
->pitches
[0], stride_alignment
);
13299 pitch_limit
= intel_fb_pitch_limit(dev
, mode_cmd
->modifier
[0],
13300 mode_cmd
->pixel_format
);
13301 if (mode_cmd
->pitches
[0] > pitch_limit
) {
13302 DRM_DEBUG("%s pitch (%u) must be at less than %d\n",
13303 mode_cmd
->modifier
[0] != DRM_FORMAT_MOD_NONE
?
13304 "tiled" : "linear",
13305 mode_cmd
->pitches
[0], pitch_limit
);
13309 if (mode_cmd
->modifier
[0] == I915_FORMAT_MOD_X_TILED
&&
13310 mode_cmd
->pitches
[0] != obj
->stride
) {
13311 DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n",
13312 mode_cmd
->pitches
[0], obj
->stride
);
13316 /* Reject formats not supported by any plane early. */
13317 switch (mode_cmd
->pixel_format
) {
13318 case DRM_FORMAT_C8
:
13319 case DRM_FORMAT_RGB565
:
13320 case DRM_FORMAT_XRGB8888
:
13321 case DRM_FORMAT_ARGB8888
:
13323 case DRM_FORMAT_XRGB1555
:
13324 case DRM_FORMAT_ARGB1555
:
13325 if (INTEL_INFO(dev
)->gen
> 3) {
13326 DRM_DEBUG("unsupported pixel format: %s\n",
13327 drm_get_format_name(mode_cmd
->pixel_format
));
13331 case DRM_FORMAT_XBGR8888
:
13332 case DRM_FORMAT_ABGR8888
:
13333 case DRM_FORMAT_XRGB2101010
:
13334 case DRM_FORMAT_ARGB2101010
:
13335 case DRM_FORMAT_XBGR2101010
:
13336 case DRM_FORMAT_ABGR2101010
:
13337 if (INTEL_INFO(dev
)->gen
< 4) {
13338 DRM_DEBUG("unsupported pixel format: %s\n",
13339 drm_get_format_name(mode_cmd
->pixel_format
));
13343 case DRM_FORMAT_YUYV
:
13344 case DRM_FORMAT_UYVY
:
13345 case DRM_FORMAT_YVYU
:
13346 case DRM_FORMAT_VYUY
:
13347 if (INTEL_INFO(dev
)->gen
< 5) {
13348 DRM_DEBUG("unsupported pixel format: %s\n",
13349 drm_get_format_name(mode_cmd
->pixel_format
));
13354 DRM_DEBUG("unsupported pixel format: %s\n",
13355 drm_get_format_name(mode_cmd
->pixel_format
));
13359 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
13360 if (mode_cmd
->offsets
[0] != 0)
13363 aligned_height
= intel_fb_align_height(dev
, mode_cmd
->height
,
13364 mode_cmd
->pixel_format
,
13365 mode_cmd
->modifier
[0]);
13366 /* FIXME drm helper for size checks (especially planar formats)? */
13367 if (obj
->base
.size
< aligned_height
* mode_cmd
->pitches
[0])
13370 drm_helper_mode_fill_fb_struct(&intel_fb
->base
, mode_cmd
);
13371 intel_fb
->obj
= obj
;
13372 intel_fb
->obj
->framebuffer_references
++;
13374 ret
= drm_framebuffer_init(dev
, &intel_fb
->base
, &intel_fb_funcs
);
13376 DRM_ERROR("framebuffer init failed %d\n", ret
);
13383 static struct drm_framebuffer
*
13384 intel_user_framebuffer_create(struct drm_device
*dev
,
13385 struct drm_file
*filp
,
13386 struct drm_mode_fb_cmd2
*mode_cmd
)
13388 struct drm_i915_gem_object
*obj
;
13390 obj
= to_intel_bo(drm_gem_object_lookup(dev
, filp
,
13391 mode_cmd
->handles
[0]));
13392 if (&obj
->base
== NULL
)
13393 return ERR_PTR(-ENOENT
);
13395 return intel_framebuffer_create(dev
, mode_cmd
, obj
);
13398 #ifndef CONFIG_DRM_I915_FBDEV
13399 static inline void intel_fbdev_output_poll_changed(struct drm_device
*dev
)
13404 static const struct drm_mode_config_funcs intel_mode_funcs
= {
13405 .fb_create
= intel_user_framebuffer_create
,
13406 .output_poll_changed
= intel_fbdev_output_poll_changed
,
13407 .atomic_check
= intel_atomic_check
,
13408 .atomic_commit
= intel_atomic_commit
,
13411 /* Set up chip specific display functions */
13412 static void intel_init_display(struct drm_device
*dev
)
13414 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13416 if (HAS_PCH_SPLIT(dev
) || IS_G4X(dev
))
13417 dev_priv
->display
.find_dpll
= g4x_find_best_dpll
;
13418 else if (IS_CHERRYVIEW(dev
))
13419 dev_priv
->display
.find_dpll
= chv_find_best_dpll
;
13420 else if (IS_VALLEYVIEW(dev
))
13421 dev_priv
->display
.find_dpll
= vlv_find_best_dpll
;
13422 else if (IS_PINEVIEW(dev
))
13423 dev_priv
->display
.find_dpll
= pnv_find_best_dpll
;
13425 dev_priv
->display
.find_dpll
= i9xx_find_best_dpll
;
13427 if (INTEL_INFO(dev
)->gen
>= 9) {
13428 dev_priv
->display
.get_pipe_config
= haswell_get_pipe_config
;
13429 dev_priv
->display
.get_initial_plane_config
=
13430 skylake_get_initial_plane_config
;
13431 dev_priv
->display
.crtc_compute_clock
=
13432 haswell_crtc_compute_clock
;
13433 dev_priv
->display
.crtc_enable
= haswell_crtc_enable
;
13434 dev_priv
->display
.crtc_disable
= haswell_crtc_disable
;
13435 dev_priv
->display
.off
= ironlake_crtc_off
;
13436 dev_priv
->display
.update_primary_plane
=
13437 skylake_update_primary_plane
;
13438 } else if (HAS_DDI(dev
)) {
13439 dev_priv
->display
.get_pipe_config
= haswell_get_pipe_config
;
13440 dev_priv
->display
.get_initial_plane_config
=
13441 ironlake_get_initial_plane_config
;
13442 dev_priv
->display
.crtc_compute_clock
=
13443 haswell_crtc_compute_clock
;
13444 dev_priv
->display
.crtc_enable
= haswell_crtc_enable
;
13445 dev_priv
->display
.crtc_disable
= haswell_crtc_disable
;
13446 dev_priv
->display
.off
= ironlake_crtc_off
;
13447 dev_priv
->display
.update_primary_plane
=
13448 ironlake_update_primary_plane
;
13449 } else if (HAS_PCH_SPLIT(dev
)) {
13450 dev_priv
->display
.get_pipe_config
= ironlake_get_pipe_config
;
13451 dev_priv
->display
.get_initial_plane_config
=
13452 ironlake_get_initial_plane_config
;
13453 dev_priv
->display
.crtc_compute_clock
=
13454 ironlake_crtc_compute_clock
;
13455 dev_priv
->display
.crtc_enable
= ironlake_crtc_enable
;
13456 dev_priv
->display
.crtc_disable
= ironlake_crtc_disable
;
13457 dev_priv
->display
.off
= ironlake_crtc_off
;
13458 dev_priv
->display
.update_primary_plane
=
13459 ironlake_update_primary_plane
;
13460 } else if (IS_VALLEYVIEW(dev
)) {
13461 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
13462 dev_priv
->display
.get_initial_plane_config
=
13463 i9xx_get_initial_plane_config
;
13464 dev_priv
->display
.crtc_compute_clock
= i9xx_crtc_compute_clock
;
13465 dev_priv
->display
.crtc_enable
= valleyview_crtc_enable
;
13466 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
13467 dev_priv
->display
.off
= i9xx_crtc_off
;
13468 dev_priv
->display
.update_primary_plane
=
13469 i9xx_update_primary_plane
;
13471 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
13472 dev_priv
->display
.get_initial_plane_config
=
13473 i9xx_get_initial_plane_config
;
13474 dev_priv
->display
.crtc_compute_clock
= i9xx_crtc_compute_clock
;
13475 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
13476 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
13477 dev_priv
->display
.off
= i9xx_crtc_off
;
13478 dev_priv
->display
.update_primary_plane
=
13479 i9xx_update_primary_plane
;
13482 /* Returns the core display clock speed */
13483 if (IS_VALLEYVIEW(dev
))
13484 dev_priv
->display
.get_display_clock_speed
=
13485 valleyview_get_display_clock_speed
;
13486 else if (IS_I945G(dev
) || (IS_G33(dev
) && !IS_PINEVIEW_M(dev
)))
13487 dev_priv
->display
.get_display_clock_speed
=
13488 i945_get_display_clock_speed
;
13489 else if (IS_I915G(dev
))
13490 dev_priv
->display
.get_display_clock_speed
=
13491 i915_get_display_clock_speed
;
13492 else if (IS_I945GM(dev
) || IS_845G(dev
))
13493 dev_priv
->display
.get_display_clock_speed
=
13494 i9xx_misc_get_display_clock_speed
;
13495 else if (IS_PINEVIEW(dev
))
13496 dev_priv
->display
.get_display_clock_speed
=
13497 pnv_get_display_clock_speed
;
13498 else if (IS_I915GM(dev
))
13499 dev_priv
->display
.get_display_clock_speed
=
13500 i915gm_get_display_clock_speed
;
13501 else if (IS_I865G(dev
))
13502 dev_priv
->display
.get_display_clock_speed
=
13503 i865_get_display_clock_speed
;
13504 else if (IS_I85X(dev
))
13505 dev_priv
->display
.get_display_clock_speed
=
13506 i855_get_display_clock_speed
;
13507 else /* 852, 830 */
13508 dev_priv
->display
.get_display_clock_speed
=
13509 i830_get_display_clock_speed
;
13511 if (IS_GEN5(dev
)) {
13512 dev_priv
->display
.fdi_link_train
= ironlake_fdi_link_train
;
13513 } else if (IS_GEN6(dev
)) {
13514 dev_priv
->display
.fdi_link_train
= gen6_fdi_link_train
;
13515 } else if (IS_IVYBRIDGE(dev
)) {
13516 /* FIXME: detect B0+ stepping and use auto training */
13517 dev_priv
->display
.fdi_link_train
= ivb_manual_fdi_link_train
;
13518 } else if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
13519 dev_priv
->display
.fdi_link_train
= hsw_fdi_link_train
;
13520 } else if (IS_VALLEYVIEW(dev
)) {
13521 dev_priv
->display
.modeset_global_resources
=
13522 valleyview_modeset_global_resources
;
13525 switch (INTEL_INFO(dev
)->gen
) {
13527 dev_priv
->display
.queue_flip
= intel_gen2_queue_flip
;
13531 dev_priv
->display
.queue_flip
= intel_gen3_queue_flip
;
13536 dev_priv
->display
.queue_flip
= intel_gen4_queue_flip
;
13540 dev_priv
->display
.queue_flip
= intel_gen6_queue_flip
;
13543 case 8: /* FIXME(BDW): Check that the gen8 RCS flip works. */
13544 dev_priv
->display
.queue_flip
= intel_gen7_queue_flip
;
13547 /* Drop through - unsupported since execlist only. */
13549 /* Default just returns -ENODEV to indicate unsupported */
13550 dev_priv
->display
.queue_flip
= intel_default_queue_flip
;
13553 intel_panel_init_backlight_funcs(dev
);
13555 mutex_init(&dev_priv
->pps_mutex
);
13559 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
13560 * resume, or other times. This quirk makes sure that's the case for
13561 * affected systems.
13563 static void quirk_pipea_force(struct drm_device
*dev
)
13565 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13567 dev_priv
->quirks
|= QUIRK_PIPEA_FORCE
;
13568 DRM_INFO("applying pipe a force quirk\n");
13571 static void quirk_pipeb_force(struct drm_device
*dev
)
13573 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13575 dev_priv
->quirks
|= QUIRK_PIPEB_FORCE
;
13576 DRM_INFO("applying pipe b force quirk\n");
13580 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
13582 static void quirk_ssc_force_disable(struct drm_device
*dev
)
13584 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13585 dev_priv
->quirks
|= QUIRK_LVDS_SSC_DISABLE
;
13586 DRM_INFO("applying lvds SSC disable quirk\n");
13590 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
13593 static void quirk_invert_brightness(struct drm_device
*dev
)
13595 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13596 dev_priv
->quirks
|= QUIRK_INVERT_BRIGHTNESS
;
13597 DRM_INFO("applying inverted panel brightness quirk\n");
13600 /* Some VBT's incorrectly indicate no backlight is present */
13601 static void quirk_backlight_present(struct drm_device
*dev
)
13603 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13604 dev_priv
->quirks
|= QUIRK_BACKLIGHT_PRESENT
;
13605 DRM_INFO("applying backlight present quirk\n");
13608 struct intel_quirk
{
13610 int subsystem_vendor
;
13611 int subsystem_device
;
13612 void (*hook
)(struct drm_device
*dev
);
13615 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
13616 struct intel_dmi_quirk
{
13617 void (*hook
)(struct drm_device
*dev
);
13618 const struct dmi_system_id (*dmi_id_list
)[];
13621 static int intel_dmi_reverse_brightness(const struct dmi_system_id
*id
)
13623 DRM_INFO("Backlight polarity reversed on %s\n", id
->ident
);
13627 static const struct intel_dmi_quirk intel_dmi_quirks
[] = {
13629 .dmi_id_list
= &(const struct dmi_system_id
[]) {
13631 .callback
= intel_dmi_reverse_brightness
,
13632 .ident
= "NCR Corporation",
13633 .matches
= {DMI_MATCH(DMI_SYS_VENDOR
, "NCR Corporation"),
13634 DMI_MATCH(DMI_PRODUCT_NAME
, ""),
13637 { } /* terminating entry */
13639 .hook
= quirk_invert_brightness
,
13643 static struct intel_quirk intel_quirks
[] = {
13644 /* HP Mini needs pipe A force quirk (LP: #322104) */
13645 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force
},
13647 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
13648 { 0x2592, 0x1179, 0x0001, quirk_pipea_force
},
13650 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
13651 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force
},
13653 /* 830 needs to leave pipe A & dpll A up */
13654 { 0x3577, PCI_ANY_ID
, PCI_ANY_ID
, quirk_pipea_force
},
13656 /* 830 needs to leave pipe B & dpll B up */
13657 { 0x3577, PCI_ANY_ID
, PCI_ANY_ID
, quirk_pipeb_force
},
13659 /* Lenovo U160 cannot use SSC on LVDS */
13660 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable
},
13662 /* Sony Vaio Y cannot use SSC on LVDS */
13663 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable
},
13665 /* Acer Aspire 5734Z must invert backlight brightness */
13666 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness
},
13668 /* Acer/eMachines G725 */
13669 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness
},
13671 /* Acer/eMachines e725 */
13672 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness
},
13674 /* Acer/Packard Bell NCL20 */
13675 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness
},
13677 /* Acer Aspire 4736Z */
13678 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness
},
13680 /* Acer Aspire 5336 */
13681 { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness
},
13683 /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */
13684 { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present
},
13686 /* Acer C720 Chromebook (Core i3 4005U) */
13687 { 0x0a16, 0x1025, 0x0a11, quirk_backlight_present
},
13689 /* Apple Macbook 2,1 (Core 2 T7400) */
13690 { 0x27a2, 0x8086, 0x7270, quirk_backlight_present
},
13692 /* Toshiba CB35 Chromebook (Celeron 2955U) */
13693 { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present
},
13695 /* HP Chromebook 14 (Celeron 2955U) */
13696 { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present
},
13698 /* Dell Chromebook 11 */
13699 { 0x0a06, 0x1028, 0x0a35, quirk_backlight_present
},
13702 static void intel_init_quirks(struct drm_device
*dev
)
13704 struct pci_dev
*d
= dev
->pdev
;
13707 for (i
= 0; i
< ARRAY_SIZE(intel_quirks
); i
++) {
13708 struct intel_quirk
*q
= &intel_quirks
[i
];
13710 if (d
->device
== q
->device
&&
13711 (d
->subsystem_vendor
== q
->subsystem_vendor
||
13712 q
->subsystem_vendor
== PCI_ANY_ID
) &&
13713 (d
->subsystem_device
== q
->subsystem_device
||
13714 q
->subsystem_device
== PCI_ANY_ID
))
13717 for (i
= 0; i
< ARRAY_SIZE(intel_dmi_quirks
); i
++) {
13718 if (dmi_check_system(*intel_dmi_quirks
[i
].dmi_id_list
) != 0)
13719 intel_dmi_quirks
[i
].hook(dev
);
13723 /* Disable the VGA plane that we never use */
13724 static void i915_disable_vga(struct drm_device
*dev
)
13726 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13728 u32 vga_reg
= i915_vgacntrl_reg(dev
);
13730 /* WaEnableVGAAccessThroughIOPort:ctg,elk,ilk,snb,ivb,vlv,hsw */
13731 vga_get_uninterruptible(dev
->pdev
, VGA_RSRC_LEGACY_IO
);
13732 outb(SR01
, VGA_SR_INDEX
);
13733 sr1
= inb(VGA_SR_DATA
);
13734 outb(sr1
| 1<<5, VGA_SR_DATA
);
13735 vga_put(dev
->pdev
, VGA_RSRC_LEGACY_IO
);
13738 I915_WRITE(vga_reg
, VGA_DISP_DISABLE
);
13739 POSTING_READ(vga_reg
);
13742 void intel_modeset_init_hw(struct drm_device
*dev
)
13744 intel_prepare_ddi(dev
);
13746 if (IS_VALLEYVIEW(dev
))
13747 vlv_update_cdclk(dev
);
13749 intel_init_clock_gating(dev
);
13751 intel_enable_gt_powersave(dev
);
13754 void intel_modeset_init(struct drm_device
*dev
)
13756 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13759 struct intel_crtc
*crtc
;
13761 drm_mode_config_init(dev
);
13763 dev
->mode_config
.min_width
= 0;
13764 dev
->mode_config
.min_height
= 0;
13766 dev
->mode_config
.preferred_depth
= 24;
13767 dev
->mode_config
.prefer_shadow
= 1;
13769 dev
->mode_config
.allow_fb_modifiers
= true;
13771 dev
->mode_config
.funcs
= &intel_mode_funcs
;
13773 intel_init_quirks(dev
);
13775 intel_init_pm(dev
);
13777 if (INTEL_INFO(dev
)->num_pipes
== 0)
13780 intel_init_display(dev
);
13781 intel_init_audio(dev
);
13783 if (IS_GEN2(dev
)) {
13784 dev
->mode_config
.max_width
= 2048;
13785 dev
->mode_config
.max_height
= 2048;
13786 } else if (IS_GEN3(dev
)) {
13787 dev
->mode_config
.max_width
= 4096;
13788 dev
->mode_config
.max_height
= 4096;
13790 dev
->mode_config
.max_width
= 8192;
13791 dev
->mode_config
.max_height
= 8192;
13794 if (IS_845G(dev
) || IS_I865G(dev
)) {
13795 dev
->mode_config
.cursor_width
= IS_845G(dev
) ? 64 : 512;
13796 dev
->mode_config
.cursor_height
= 1023;
13797 } else if (IS_GEN2(dev
)) {
13798 dev
->mode_config
.cursor_width
= GEN2_CURSOR_WIDTH
;
13799 dev
->mode_config
.cursor_height
= GEN2_CURSOR_HEIGHT
;
13801 dev
->mode_config
.cursor_width
= MAX_CURSOR_WIDTH
;
13802 dev
->mode_config
.cursor_height
= MAX_CURSOR_HEIGHT
;
13805 dev
->mode_config
.fb_base
= dev_priv
->gtt
.mappable_base
;
13807 DRM_DEBUG_KMS("%d display pipe%s available.\n",
13808 INTEL_INFO(dev
)->num_pipes
,
13809 INTEL_INFO(dev
)->num_pipes
> 1 ? "s" : "");
13811 for_each_pipe(dev_priv
, pipe
) {
13812 intel_crtc_init(dev
, pipe
);
13813 for_each_sprite(dev_priv
, pipe
, sprite
) {
13814 ret
= intel_plane_init(dev
, pipe
, sprite
);
13816 DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n",
13817 pipe_name(pipe
), sprite_name(pipe
, sprite
), ret
);
13821 intel_init_dpio(dev
);
13823 intel_shared_dpll_init(dev
);
13825 /* Just disable it once at startup */
13826 i915_disable_vga(dev
);
13827 intel_setup_outputs(dev
);
13829 /* Just in case the BIOS is doing something questionable. */
13830 intel_fbc_disable(dev
);
13832 drm_modeset_lock_all(dev
);
13833 intel_modeset_setup_hw_state(dev
, false);
13834 drm_modeset_unlock_all(dev
);
13836 for_each_intel_crtc(dev
, crtc
) {
13841 * Note that reserving the BIOS fb up front prevents us
13842 * from stuffing other stolen allocations like the ring
13843 * on top. This prevents some ugliness at boot time, and
13844 * can even allow for smooth boot transitions if the BIOS
13845 * fb is large enough for the active pipe configuration.
13847 if (dev_priv
->display
.get_initial_plane_config
) {
13848 dev_priv
->display
.get_initial_plane_config(crtc
,
13849 &crtc
->plane_config
);
13851 * If the fb is shared between multiple heads, we'll
13852 * just get the first one.
13854 intel_find_initial_plane_obj(crtc
, &crtc
->plane_config
);
13859 static void intel_enable_pipe_a(struct drm_device
*dev
)
13861 struct intel_connector
*connector
;
13862 struct drm_connector
*crt
= NULL
;
13863 struct intel_load_detect_pipe load_detect_temp
;
13864 struct drm_modeset_acquire_ctx
*ctx
= dev
->mode_config
.acquire_ctx
;
13866 /* We can't just switch on the pipe A, we need to set things up with a
13867 * proper mode and output configuration. As a gross hack, enable pipe A
13868 * by enabling the load detect pipe once. */
13869 for_each_intel_connector(dev
, connector
) {
13870 if (connector
->encoder
->type
== INTEL_OUTPUT_ANALOG
) {
13871 crt
= &connector
->base
;
13879 if (intel_get_load_detect_pipe(crt
, NULL
, &load_detect_temp
, ctx
))
13880 intel_release_load_detect_pipe(crt
, &load_detect_temp
, ctx
);
13884 intel_check_plane_mapping(struct intel_crtc
*crtc
)
13886 struct drm_device
*dev
= crtc
->base
.dev
;
13887 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13890 if (INTEL_INFO(dev
)->num_pipes
== 1)
13893 reg
= DSPCNTR(!crtc
->plane
);
13894 val
= I915_READ(reg
);
13896 if ((val
& DISPLAY_PLANE_ENABLE
) &&
13897 (!!(val
& DISPPLANE_SEL_PIPE_MASK
) == crtc
->pipe
))
13903 static void intel_sanitize_crtc(struct intel_crtc
*crtc
)
13905 struct drm_device
*dev
= crtc
->base
.dev
;
13906 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13909 /* Clear any frame start delays used for debugging left by the BIOS */
13910 reg
= PIPECONF(crtc
->config
->cpu_transcoder
);
13911 I915_WRITE(reg
, I915_READ(reg
) & ~PIPECONF_FRAME_START_DELAY_MASK
);
13913 /* restore vblank interrupts to correct state */
13914 drm_crtc_vblank_reset(&crtc
->base
);
13915 if (crtc
->active
) {
13916 update_scanline_offset(crtc
);
13917 drm_crtc_vblank_on(&crtc
->base
);
13920 /* We need to sanitize the plane -> pipe mapping first because this will
13921 * disable the crtc (and hence change the state) if it is wrong. Note
13922 * that gen4+ has a fixed plane -> pipe mapping. */
13923 if (INTEL_INFO(dev
)->gen
< 4 && !intel_check_plane_mapping(crtc
)) {
13924 struct intel_connector
*connector
;
13927 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
13928 crtc
->base
.base
.id
);
13930 /* Pipe has the wrong plane attached and the plane is active.
13931 * Temporarily change the plane mapping and disable everything
13933 plane
= crtc
->plane
;
13934 crtc
->plane
= !plane
;
13935 crtc
->primary_enabled
= true;
13936 dev_priv
->display
.crtc_disable(&crtc
->base
);
13937 crtc
->plane
= plane
;
13939 /* ... and break all links. */
13940 for_each_intel_connector(dev
, connector
) {
13941 if (connector
->encoder
->base
.crtc
!= &crtc
->base
)
13944 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
13945 connector
->base
.encoder
= NULL
;
13947 /* multiple connectors may have the same encoder:
13948 * handle them and break crtc link separately */
13949 for_each_intel_connector(dev
, connector
)
13950 if (connector
->encoder
->base
.crtc
== &crtc
->base
) {
13951 connector
->encoder
->base
.crtc
= NULL
;
13952 connector
->encoder
->connectors_active
= false;
13955 WARN_ON(crtc
->active
);
13956 crtc
->base
.state
->enable
= false;
13957 crtc
->base
.enabled
= false;
13960 if (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
&&
13961 crtc
->pipe
== PIPE_A
&& !crtc
->active
) {
13962 /* BIOS forgot to enable pipe A, this mostly happens after
13963 * resume. Force-enable the pipe to fix this, the update_dpms
13964 * call below we restore the pipe to the right state, but leave
13965 * the required bits on. */
13966 intel_enable_pipe_a(dev
);
13969 /* Adjust the state of the output pipe according to whether we
13970 * have active connectors/encoders. */
13971 intel_crtc_update_dpms(&crtc
->base
);
13973 if (crtc
->active
!= crtc
->base
.state
->enable
) {
13974 struct intel_encoder
*encoder
;
13976 /* This can happen either due to bugs in the get_hw_state
13977 * functions or because the pipe is force-enabled due to the
13979 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
13980 crtc
->base
.base
.id
,
13981 crtc
->base
.state
->enable
? "enabled" : "disabled",
13982 crtc
->active
? "enabled" : "disabled");
13984 crtc
->base
.state
->enable
= crtc
->active
;
13985 crtc
->base
.enabled
= crtc
->active
;
13987 /* Because we only establish the connector -> encoder ->
13988 * crtc links if something is active, this means the
13989 * crtc is now deactivated. Break the links. connector
13990 * -> encoder links are only establish when things are
13991 * actually up, hence no need to break them. */
13992 WARN_ON(crtc
->active
);
13994 for_each_encoder_on_crtc(dev
, &crtc
->base
, encoder
) {
13995 WARN_ON(encoder
->connectors_active
);
13996 encoder
->base
.crtc
= NULL
;
14000 if (crtc
->active
|| HAS_GMCH_DISPLAY(dev
)) {
14002 * We start out with underrun reporting disabled to avoid races.
14003 * For correct bookkeeping mark this on active crtcs.
14005 * Also on gmch platforms we dont have any hardware bits to
14006 * disable the underrun reporting. Which means we need to start
14007 * out with underrun reporting disabled also on inactive pipes,
14008 * since otherwise we'll complain about the garbage we read when
14009 * e.g. coming up after runtime pm.
14011 * No protection against concurrent access is required - at
14012 * worst a fifo underrun happens which also sets this to false.
14014 crtc
->cpu_fifo_underrun_disabled
= true;
14015 crtc
->pch_fifo_underrun_disabled
= true;
14019 static void intel_sanitize_encoder(struct intel_encoder
*encoder
)
14021 struct intel_connector
*connector
;
14022 struct drm_device
*dev
= encoder
->base
.dev
;
14024 /* We need to check both for a crtc link (meaning that the
14025 * encoder is active and trying to read from a pipe) and the
14026 * pipe itself being active. */
14027 bool has_active_crtc
= encoder
->base
.crtc
&&
14028 to_intel_crtc(encoder
->base
.crtc
)->active
;
14030 if (encoder
->connectors_active
&& !has_active_crtc
) {
14031 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
14032 encoder
->base
.base
.id
,
14033 encoder
->base
.name
);
14035 /* Connector is active, but has no active pipe. This is
14036 * fallout from our resume register restoring. Disable
14037 * the encoder manually again. */
14038 if (encoder
->base
.crtc
) {
14039 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
14040 encoder
->base
.base
.id
,
14041 encoder
->base
.name
);
14042 encoder
->disable(encoder
);
14043 if (encoder
->post_disable
)
14044 encoder
->post_disable(encoder
);
14046 encoder
->base
.crtc
= NULL
;
14047 encoder
->connectors_active
= false;
14049 /* Inconsistent output/port/pipe state happens presumably due to
14050 * a bug in one of the get_hw_state functions. Or someplace else
14051 * in our code, like the register restore mess on resume. Clamp
14052 * things to off as a safer default. */
14053 for_each_intel_connector(dev
, connector
) {
14054 if (connector
->encoder
!= encoder
)
14056 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
14057 connector
->base
.encoder
= NULL
;
14060 /* Enabled encoders without active connectors will be fixed in
14061 * the crtc fixup. */
14064 void i915_redisable_vga_power_on(struct drm_device
*dev
)
14066 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14067 u32 vga_reg
= i915_vgacntrl_reg(dev
);
14069 if (!(I915_READ(vga_reg
) & VGA_DISP_DISABLE
)) {
14070 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
14071 i915_disable_vga(dev
);
14075 void i915_redisable_vga(struct drm_device
*dev
)
14077 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14079 /* This function can be called both from intel_modeset_setup_hw_state or
14080 * at a very early point in our resume sequence, where the power well
14081 * structures are not yet restored. Since this function is at a very
14082 * paranoid "someone might have enabled VGA while we were not looking"
14083 * level, just check if the power well is enabled instead of trying to
14084 * follow the "don't touch the power well if we don't need it" policy
14085 * the rest of the driver uses. */
14086 if (!intel_display_power_is_enabled(dev_priv
, POWER_DOMAIN_VGA
))
14089 i915_redisable_vga_power_on(dev
);
14092 static bool primary_get_hw_state(struct intel_crtc
*crtc
)
14094 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
14099 return I915_READ(DSPCNTR(crtc
->plane
)) & DISPLAY_PLANE_ENABLE
;
14102 static void intel_modeset_readout_hw_state(struct drm_device
*dev
)
14104 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14106 struct intel_crtc
*crtc
;
14107 struct intel_encoder
*encoder
;
14108 struct intel_connector
*connector
;
14111 for_each_intel_crtc(dev
, crtc
) {
14112 memset(crtc
->config
, 0, sizeof(*crtc
->config
));
14114 crtc
->config
->quirks
|= PIPE_CONFIG_QUIRK_INHERITED_MODE
;
14116 crtc
->active
= dev_priv
->display
.get_pipe_config(crtc
,
14119 crtc
->base
.state
->enable
= crtc
->active
;
14120 crtc
->base
.enabled
= crtc
->active
;
14121 crtc
->primary_enabled
= primary_get_hw_state(crtc
);
14123 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
14124 crtc
->base
.base
.id
,
14125 crtc
->active
? "enabled" : "disabled");
14128 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
14129 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
14131 pll
->on
= pll
->get_hw_state(dev_priv
, pll
,
14132 &pll
->config
.hw_state
);
14134 pll
->config
.crtc_mask
= 0;
14135 for_each_intel_crtc(dev
, crtc
) {
14136 if (crtc
->active
&& intel_crtc_to_shared_dpll(crtc
) == pll
) {
14138 pll
->config
.crtc_mask
|= 1 << crtc
->pipe
;
14142 DRM_DEBUG_KMS("%s hw state readout: crtc_mask 0x%08x, on %i\n",
14143 pll
->name
, pll
->config
.crtc_mask
, pll
->on
);
14145 if (pll
->config
.crtc_mask
)
14146 intel_display_power_get(dev_priv
, POWER_DOMAIN_PLLS
);
14149 for_each_intel_encoder(dev
, encoder
) {
14152 if (encoder
->get_hw_state(encoder
, &pipe
)) {
14153 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
14154 encoder
->base
.crtc
= &crtc
->base
;
14155 encoder
->get_config(encoder
, crtc
->config
);
14157 encoder
->base
.crtc
= NULL
;
14160 encoder
->connectors_active
= false;
14161 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n",
14162 encoder
->base
.base
.id
,
14163 encoder
->base
.name
,
14164 encoder
->base
.crtc
? "enabled" : "disabled",
14168 for_each_intel_connector(dev
, connector
) {
14169 if (connector
->get_hw_state(connector
)) {
14170 connector
->base
.dpms
= DRM_MODE_DPMS_ON
;
14171 connector
->encoder
->connectors_active
= true;
14172 connector
->base
.encoder
= &connector
->encoder
->base
;
14174 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
14175 connector
->base
.encoder
= NULL
;
14177 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
14178 connector
->base
.base
.id
,
14179 connector
->base
.name
,
14180 connector
->base
.encoder
? "enabled" : "disabled");
14184 /* Scan out the current hw modeset state, sanitizes it and maps it into the drm
14185 * and i915 state tracking structures. */
14186 void intel_modeset_setup_hw_state(struct drm_device
*dev
,
14187 bool force_restore
)
14189 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14191 struct intel_crtc
*crtc
;
14192 struct intel_encoder
*encoder
;
14195 intel_modeset_readout_hw_state(dev
);
14198 * Now that we have the config, copy it to each CRTC struct
14199 * Note that this could go away if we move to using crtc_config
14200 * checking everywhere.
14202 for_each_intel_crtc(dev
, crtc
) {
14203 if (crtc
->active
&& i915
.fastboot
) {
14204 intel_mode_from_pipe_config(&crtc
->base
.mode
,
14206 DRM_DEBUG_KMS("[CRTC:%d] found active mode: ",
14207 crtc
->base
.base
.id
);
14208 drm_mode_debug_printmodeline(&crtc
->base
.mode
);
14212 /* HW state is read out, now we need to sanitize this mess. */
14213 for_each_intel_encoder(dev
, encoder
) {
14214 intel_sanitize_encoder(encoder
);
14217 for_each_pipe(dev_priv
, pipe
) {
14218 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
14219 intel_sanitize_crtc(crtc
);
14220 intel_dump_pipe_config(crtc
, crtc
->config
,
14221 "[setup_hw_state]");
14224 intel_modeset_update_connector_atomic_state(dev
);
14226 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
14227 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
14229 if (!pll
->on
|| pll
->active
)
14232 DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll
->name
);
14234 pll
->disable(dev_priv
, pll
);
14239 skl_wm_get_hw_state(dev
);
14240 else if (HAS_PCH_SPLIT(dev
))
14241 ilk_wm_get_hw_state(dev
);
14243 if (force_restore
) {
14244 i915_redisable_vga(dev
);
14247 * We need to use raw interfaces for restoring state to avoid
14248 * checking (bogus) intermediate states.
14250 for_each_pipe(dev_priv
, pipe
) {
14251 struct drm_crtc
*crtc
=
14252 dev_priv
->pipe_to_crtc_mapping
[pipe
];
14254 intel_crtc_restore_mode(crtc
);
14257 intel_modeset_update_staged_output_state(dev
);
14260 intel_modeset_check_state(dev
);
14263 void intel_modeset_gem_init(struct drm_device
*dev
)
14265 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14266 struct drm_crtc
*c
;
14267 struct drm_i915_gem_object
*obj
;
14269 mutex_lock(&dev
->struct_mutex
);
14270 intel_init_gt_powersave(dev
);
14271 mutex_unlock(&dev
->struct_mutex
);
14274 * There may be no VBT; and if the BIOS enabled SSC we can
14275 * just keep using it to avoid unnecessary flicker. Whereas if the
14276 * BIOS isn't using it, don't assume it will work even if the VBT
14277 * indicates as much.
14279 if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
14280 dev_priv
->vbt
.lvds_use_ssc
= !!(I915_READ(PCH_DREF_CONTROL
) &
14283 intel_modeset_init_hw(dev
);
14285 intel_setup_overlay(dev
);
14288 * Make sure any fbs we allocated at startup are properly
14289 * pinned & fenced. When we do the allocation it's too early
14292 mutex_lock(&dev
->struct_mutex
);
14293 for_each_crtc(dev
, c
) {
14294 obj
= intel_fb_obj(c
->primary
->fb
);
14298 if (intel_pin_and_fence_fb_obj(c
->primary
,
14302 DRM_ERROR("failed to pin boot fb on pipe %d\n",
14303 to_intel_crtc(c
)->pipe
);
14304 drm_framebuffer_unreference(c
->primary
->fb
);
14305 c
->primary
->fb
= NULL
;
14306 update_state_fb(c
->primary
);
14309 mutex_unlock(&dev
->struct_mutex
);
14311 intel_backlight_register(dev
);
14314 void intel_connector_unregister(struct intel_connector
*intel_connector
)
14316 struct drm_connector
*connector
= &intel_connector
->base
;
14318 intel_panel_destroy_backlight(connector
);
14319 drm_connector_unregister(connector
);
14322 void intel_modeset_cleanup(struct drm_device
*dev
)
14324 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14325 struct drm_connector
*connector
;
14327 intel_disable_gt_powersave(dev
);
14329 intel_backlight_unregister(dev
);
14332 * Interrupts and polling as the first thing to avoid creating havoc.
14333 * Too much stuff here (turning of connectors, ...) would
14334 * experience fancy races otherwise.
14336 intel_irq_uninstall(dev_priv
);
14339 * Due to the hpd irq storm handling the hotplug work can re-arm the
14340 * poll handlers. Hence disable polling after hpd handling is shut down.
14342 drm_kms_helper_poll_fini(dev
);
14344 mutex_lock(&dev
->struct_mutex
);
14346 intel_unregister_dsm_handler();
14348 intel_fbc_disable(dev
);
14350 mutex_unlock(&dev
->struct_mutex
);
14352 /* flush any delayed tasks or pending work */
14353 flush_scheduled_work();
14355 /* destroy the backlight and sysfs files before encoders/connectors */
14356 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
14357 struct intel_connector
*intel_connector
;
14359 intel_connector
= to_intel_connector(connector
);
14360 intel_connector
->unregister(intel_connector
);
14363 drm_mode_config_cleanup(dev
);
14365 intel_cleanup_overlay(dev
);
14367 mutex_lock(&dev
->struct_mutex
);
14368 intel_cleanup_gt_powersave(dev
);
14369 mutex_unlock(&dev
->struct_mutex
);
14373 * Return which encoder is currently attached for connector.
14375 struct drm_encoder
*intel_best_encoder(struct drm_connector
*connector
)
14377 return &intel_attached_encoder(connector
)->base
;
14380 void intel_connector_attach_encoder(struct intel_connector
*connector
,
14381 struct intel_encoder
*encoder
)
14383 connector
->encoder
= encoder
;
14384 drm_mode_connector_attach_encoder(&connector
->base
,
14389 * set vga decode state - true == enable VGA decode
14391 int intel_modeset_vga_set_state(struct drm_device
*dev
, bool state
)
14393 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14394 unsigned reg
= INTEL_INFO(dev
)->gen
>= 6 ? SNB_GMCH_CTRL
: INTEL_GMCH_CTRL
;
14397 if (pci_read_config_word(dev_priv
->bridge_dev
, reg
, &gmch_ctrl
)) {
14398 DRM_ERROR("failed to read control word\n");
14402 if (!!(gmch_ctrl
& INTEL_GMCH_VGA_DISABLE
) == !state
)
14406 gmch_ctrl
&= ~INTEL_GMCH_VGA_DISABLE
;
14408 gmch_ctrl
|= INTEL_GMCH_VGA_DISABLE
;
14410 if (pci_write_config_word(dev_priv
->bridge_dev
, reg
, gmch_ctrl
)) {
14411 DRM_ERROR("failed to write control word\n");
14418 struct intel_display_error_state
{
14420 u32 power_well_driver
;
14422 int num_transcoders
;
14424 struct intel_cursor_error_state
{
14429 } cursor
[I915_MAX_PIPES
];
14431 struct intel_pipe_error_state
{
14432 bool power_domain_on
;
14435 } pipe
[I915_MAX_PIPES
];
14437 struct intel_plane_error_state
{
14445 } plane
[I915_MAX_PIPES
];
14447 struct intel_transcoder_error_state
{
14448 bool power_domain_on
;
14449 enum transcoder cpu_transcoder
;
14462 struct intel_display_error_state
*
14463 intel_display_capture_error_state(struct drm_device
*dev
)
14465 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14466 struct intel_display_error_state
*error
;
14467 int transcoders
[] = {
14475 if (INTEL_INFO(dev
)->num_pipes
== 0)
14478 error
= kzalloc(sizeof(*error
), GFP_ATOMIC
);
14482 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
14483 error
->power_well_driver
= I915_READ(HSW_PWR_WELL_DRIVER
);
14485 for_each_pipe(dev_priv
, i
) {
14486 error
->pipe
[i
].power_domain_on
=
14487 __intel_display_power_is_enabled(dev_priv
,
14488 POWER_DOMAIN_PIPE(i
));
14489 if (!error
->pipe
[i
].power_domain_on
)
14492 error
->cursor
[i
].control
= I915_READ(CURCNTR(i
));
14493 error
->cursor
[i
].position
= I915_READ(CURPOS(i
));
14494 error
->cursor
[i
].base
= I915_READ(CURBASE(i
));
14496 error
->plane
[i
].control
= I915_READ(DSPCNTR(i
));
14497 error
->plane
[i
].stride
= I915_READ(DSPSTRIDE(i
));
14498 if (INTEL_INFO(dev
)->gen
<= 3) {
14499 error
->plane
[i
].size
= I915_READ(DSPSIZE(i
));
14500 error
->plane
[i
].pos
= I915_READ(DSPPOS(i
));
14502 if (INTEL_INFO(dev
)->gen
<= 7 && !IS_HASWELL(dev
))
14503 error
->plane
[i
].addr
= I915_READ(DSPADDR(i
));
14504 if (INTEL_INFO(dev
)->gen
>= 4) {
14505 error
->plane
[i
].surface
= I915_READ(DSPSURF(i
));
14506 error
->plane
[i
].tile_offset
= I915_READ(DSPTILEOFF(i
));
14509 error
->pipe
[i
].source
= I915_READ(PIPESRC(i
));
14511 if (HAS_GMCH_DISPLAY(dev
))
14512 error
->pipe
[i
].stat
= I915_READ(PIPESTAT(i
));
14515 error
->num_transcoders
= INTEL_INFO(dev
)->num_pipes
;
14516 if (HAS_DDI(dev_priv
->dev
))
14517 error
->num_transcoders
++; /* Account for eDP. */
14519 for (i
= 0; i
< error
->num_transcoders
; i
++) {
14520 enum transcoder cpu_transcoder
= transcoders
[i
];
14522 error
->transcoder
[i
].power_domain_on
=
14523 __intel_display_power_is_enabled(dev_priv
,
14524 POWER_DOMAIN_TRANSCODER(cpu_transcoder
));
14525 if (!error
->transcoder
[i
].power_domain_on
)
14528 error
->transcoder
[i
].cpu_transcoder
= cpu_transcoder
;
14530 error
->transcoder
[i
].conf
= I915_READ(PIPECONF(cpu_transcoder
));
14531 error
->transcoder
[i
].htotal
= I915_READ(HTOTAL(cpu_transcoder
));
14532 error
->transcoder
[i
].hblank
= I915_READ(HBLANK(cpu_transcoder
));
14533 error
->transcoder
[i
].hsync
= I915_READ(HSYNC(cpu_transcoder
));
14534 error
->transcoder
[i
].vtotal
= I915_READ(VTOTAL(cpu_transcoder
));
14535 error
->transcoder
[i
].vblank
= I915_READ(VBLANK(cpu_transcoder
));
14536 error
->transcoder
[i
].vsync
= I915_READ(VSYNC(cpu_transcoder
));
14542 #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
14545 intel_display_print_error_state(struct drm_i915_error_state_buf
*m
,
14546 struct drm_device
*dev
,
14547 struct intel_display_error_state
*error
)
14549 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14555 err_printf(m
, "Num Pipes: %d\n", INTEL_INFO(dev
)->num_pipes
);
14556 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
14557 err_printf(m
, "PWR_WELL_CTL2: %08x\n",
14558 error
->power_well_driver
);
14559 for_each_pipe(dev_priv
, i
) {
14560 err_printf(m
, "Pipe [%d]:\n", i
);
14561 err_printf(m
, " Power: %s\n",
14562 error
->pipe
[i
].power_domain_on
? "on" : "off");
14563 err_printf(m
, " SRC: %08x\n", error
->pipe
[i
].source
);
14564 err_printf(m
, " STAT: %08x\n", error
->pipe
[i
].stat
);
14566 err_printf(m
, "Plane [%d]:\n", i
);
14567 err_printf(m
, " CNTR: %08x\n", error
->plane
[i
].control
);
14568 err_printf(m
, " STRIDE: %08x\n", error
->plane
[i
].stride
);
14569 if (INTEL_INFO(dev
)->gen
<= 3) {
14570 err_printf(m
, " SIZE: %08x\n", error
->plane
[i
].size
);
14571 err_printf(m
, " POS: %08x\n", error
->plane
[i
].pos
);
14573 if (INTEL_INFO(dev
)->gen
<= 7 && !IS_HASWELL(dev
))
14574 err_printf(m
, " ADDR: %08x\n", error
->plane
[i
].addr
);
14575 if (INTEL_INFO(dev
)->gen
>= 4) {
14576 err_printf(m
, " SURF: %08x\n", error
->plane
[i
].surface
);
14577 err_printf(m
, " TILEOFF: %08x\n", error
->plane
[i
].tile_offset
);
14580 err_printf(m
, "Cursor [%d]:\n", i
);
14581 err_printf(m
, " CNTR: %08x\n", error
->cursor
[i
].control
);
14582 err_printf(m
, " POS: %08x\n", error
->cursor
[i
].position
);
14583 err_printf(m
, " BASE: %08x\n", error
->cursor
[i
].base
);
14586 for (i
= 0; i
< error
->num_transcoders
; i
++) {
14587 err_printf(m
, "CPU transcoder: %c\n",
14588 transcoder_name(error
->transcoder
[i
].cpu_transcoder
));
14589 err_printf(m
, " Power: %s\n",
14590 error
->transcoder
[i
].power_domain_on
? "on" : "off");
14591 err_printf(m
, " CONF: %08x\n", error
->transcoder
[i
].conf
);
14592 err_printf(m
, " HTOTAL: %08x\n", error
->transcoder
[i
].htotal
);
14593 err_printf(m
, " HBLANK: %08x\n", error
->transcoder
[i
].hblank
);
14594 err_printf(m
, " HSYNC: %08x\n", error
->transcoder
[i
].hsync
);
14595 err_printf(m
, " VTOTAL: %08x\n", error
->transcoder
[i
].vtotal
);
14596 err_printf(m
, " VBLANK: %08x\n", error
->transcoder
[i
].vblank
);
14597 err_printf(m
, " VSYNC: %08x\n", error
->transcoder
[i
].vsync
);
14601 void intel_modeset_preclose(struct drm_device
*dev
, struct drm_file
*file
)
14603 struct intel_crtc
*crtc
;
14605 for_each_intel_crtc(dev
, crtc
) {
14606 struct intel_unpin_work
*work
;
14608 spin_lock_irq(&dev
->event_lock
);
14610 work
= crtc
->unpin_work
;
14612 if (work
&& work
->event
&&
14613 work
->event
->base
.file_priv
== file
) {
14614 kfree(work
->event
);
14615 work
->event
= NULL
;
14618 spin_unlock_irq(&dev
->event_lock
);