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_dp_helper.h>
41 #include <drm/drm_crtc_helper.h>
42 #include <drm/drm_plane_helper.h>
43 #include <drm/drm_rect.h>
44 #include <linux/dma_remapping.h>
46 /* Primary plane formats supported by all gen */
47 #define COMMON_PRIMARY_FORMATS \
50 DRM_FORMAT_XRGB8888, \
53 /* Primary plane formats for gen <= 3 */
54 static const uint32_t intel_primary_formats_gen2
[] = {
55 COMMON_PRIMARY_FORMATS
,
60 /* Primary plane formats for gen >= 4 */
61 static const uint32_t intel_primary_formats_gen4
[] = {
62 COMMON_PRIMARY_FORMATS
, \
65 DRM_FORMAT_XRGB2101010
,
66 DRM_FORMAT_ARGB2101010
,
67 DRM_FORMAT_XBGR2101010
,
68 DRM_FORMAT_ABGR2101010
,
72 static const uint32_t intel_cursor_formats
[] = {
76 #define DIV_ROUND_CLOSEST_ULL(ll, d) \
77 ({ unsigned long long _tmp = (ll)+(d)/2; do_div(_tmp, d); _tmp; })
79 static void intel_increase_pllclock(struct drm_device
*dev
,
81 static void intel_crtc_update_cursor(struct drm_crtc
*crtc
, bool on
);
83 static void i9xx_crtc_clock_get(struct intel_crtc
*crtc
,
84 struct intel_crtc_config
*pipe_config
);
85 static void ironlake_pch_clock_get(struct intel_crtc
*crtc
,
86 struct intel_crtc_config
*pipe_config
);
88 static int intel_set_mode(struct drm_crtc
*crtc
, struct drm_display_mode
*mode
,
89 int x
, int y
, struct drm_framebuffer
*old_fb
);
90 static int intel_framebuffer_init(struct drm_device
*dev
,
91 struct intel_framebuffer
*ifb
,
92 struct drm_mode_fb_cmd2
*mode_cmd
,
93 struct drm_i915_gem_object
*obj
);
94 static void i9xx_set_pipeconf(struct intel_crtc
*intel_crtc
);
95 static void intel_set_pipe_timings(struct intel_crtc
*intel_crtc
);
96 static void intel_cpu_transcoder_set_m_n(struct intel_crtc
*crtc
,
97 struct intel_link_m_n
*m_n
,
98 struct intel_link_m_n
*m2_n2
);
99 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
);
100 static void haswell_set_pipeconf(struct drm_crtc
*crtc
);
101 static void intel_set_pipe_csc(struct drm_crtc
*crtc
);
102 static void vlv_prepare_pll(struct intel_crtc
*crtc
);
103 static void chv_prepare_pll(struct intel_crtc
*crtc
);
105 static struct intel_encoder
*intel_find_encoder(struct intel_connector
*connector
, int pipe
)
107 if (!connector
->mst_port
)
108 return connector
->encoder
;
110 return &connector
->mst_port
->mst_encoders
[pipe
]->base
;
119 int p2_slow
, p2_fast
;
122 typedef struct intel_limit intel_limit_t
;
124 intel_range_t dot
, vco
, n
, m
, m1
, m2
, p
, p1
;
129 intel_pch_rawclk(struct drm_device
*dev
)
131 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
133 WARN_ON(!HAS_PCH_SPLIT(dev
));
135 return I915_READ(PCH_RAWCLK_FREQ
) & RAWCLK_FREQ_MASK
;
138 static inline u32
/* units of 100MHz */
139 intel_fdi_link_freq(struct drm_device
*dev
)
142 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
143 return (I915_READ(FDI_PLL_BIOS_0
) & FDI_PLL_FB_CLOCK_MASK
) + 2;
148 static const intel_limit_t intel_limits_i8xx_dac
= {
149 .dot
= { .min
= 25000, .max
= 350000 },
150 .vco
= { .min
= 908000, .max
= 1512000 },
151 .n
= { .min
= 2, .max
= 16 },
152 .m
= { .min
= 96, .max
= 140 },
153 .m1
= { .min
= 18, .max
= 26 },
154 .m2
= { .min
= 6, .max
= 16 },
155 .p
= { .min
= 4, .max
= 128 },
156 .p1
= { .min
= 2, .max
= 33 },
157 .p2
= { .dot_limit
= 165000,
158 .p2_slow
= 4, .p2_fast
= 2 },
161 static const intel_limit_t intel_limits_i8xx_dvo
= {
162 .dot
= { .min
= 25000, .max
= 350000 },
163 .vco
= { .min
= 908000, .max
= 1512000 },
164 .n
= { .min
= 2, .max
= 16 },
165 .m
= { .min
= 96, .max
= 140 },
166 .m1
= { .min
= 18, .max
= 26 },
167 .m2
= { .min
= 6, .max
= 16 },
168 .p
= { .min
= 4, .max
= 128 },
169 .p1
= { .min
= 2, .max
= 33 },
170 .p2
= { .dot_limit
= 165000,
171 .p2_slow
= 4, .p2_fast
= 4 },
174 static const intel_limit_t intel_limits_i8xx_lvds
= {
175 .dot
= { .min
= 25000, .max
= 350000 },
176 .vco
= { .min
= 908000, .max
= 1512000 },
177 .n
= { .min
= 2, .max
= 16 },
178 .m
= { .min
= 96, .max
= 140 },
179 .m1
= { .min
= 18, .max
= 26 },
180 .m2
= { .min
= 6, .max
= 16 },
181 .p
= { .min
= 4, .max
= 128 },
182 .p1
= { .min
= 1, .max
= 6 },
183 .p2
= { .dot_limit
= 165000,
184 .p2_slow
= 14, .p2_fast
= 7 },
187 static const intel_limit_t intel_limits_i9xx_sdvo
= {
188 .dot
= { .min
= 20000, .max
= 400000 },
189 .vco
= { .min
= 1400000, .max
= 2800000 },
190 .n
= { .min
= 1, .max
= 6 },
191 .m
= { .min
= 70, .max
= 120 },
192 .m1
= { .min
= 8, .max
= 18 },
193 .m2
= { .min
= 3, .max
= 7 },
194 .p
= { .min
= 5, .max
= 80 },
195 .p1
= { .min
= 1, .max
= 8 },
196 .p2
= { .dot_limit
= 200000,
197 .p2_slow
= 10, .p2_fast
= 5 },
200 static const intel_limit_t intel_limits_i9xx_lvds
= {
201 .dot
= { .min
= 20000, .max
= 400000 },
202 .vco
= { .min
= 1400000, .max
= 2800000 },
203 .n
= { .min
= 1, .max
= 6 },
204 .m
= { .min
= 70, .max
= 120 },
205 .m1
= { .min
= 8, .max
= 18 },
206 .m2
= { .min
= 3, .max
= 7 },
207 .p
= { .min
= 7, .max
= 98 },
208 .p1
= { .min
= 1, .max
= 8 },
209 .p2
= { .dot_limit
= 112000,
210 .p2_slow
= 14, .p2_fast
= 7 },
214 static const intel_limit_t intel_limits_g4x_sdvo
= {
215 .dot
= { .min
= 25000, .max
= 270000 },
216 .vco
= { .min
= 1750000, .max
= 3500000},
217 .n
= { .min
= 1, .max
= 4 },
218 .m
= { .min
= 104, .max
= 138 },
219 .m1
= { .min
= 17, .max
= 23 },
220 .m2
= { .min
= 5, .max
= 11 },
221 .p
= { .min
= 10, .max
= 30 },
222 .p1
= { .min
= 1, .max
= 3},
223 .p2
= { .dot_limit
= 270000,
229 static const intel_limit_t intel_limits_g4x_hdmi
= {
230 .dot
= { .min
= 22000, .max
= 400000 },
231 .vco
= { .min
= 1750000, .max
= 3500000},
232 .n
= { .min
= 1, .max
= 4 },
233 .m
= { .min
= 104, .max
= 138 },
234 .m1
= { .min
= 16, .max
= 23 },
235 .m2
= { .min
= 5, .max
= 11 },
236 .p
= { .min
= 5, .max
= 80 },
237 .p1
= { .min
= 1, .max
= 8},
238 .p2
= { .dot_limit
= 165000,
239 .p2_slow
= 10, .p2_fast
= 5 },
242 static const intel_limit_t intel_limits_g4x_single_channel_lvds
= {
243 .dot
= { .min
= 20000, .max
= 115000 },
244 .vco
= { .min
= 1750000, .max
= 3500000 },
245 .n
= { .min
= 1, .max
= 3 },
246 .m
= { .min
= 104, .max
= 138 },
247 .m1
= { .min
= 17, .max
= 23 },
248 .m2
= { .min
= 5, .max
= 11 },
249 .p
= { .min
= 28, .max
= 112 },
250 .p1
= { .min
= 2, .max
= 8 },
251 .p2
= { .dot_limit
= 0,
252 .p2_slow
= 14, .p2_fast
= 14
256 static const intel_limit_t intel_limits_g4x_dual_channel_lvds
= {
257 .dot
= { .min
= 80000, .max
= 224000 },
258 .vco
= { .min
= 1750000, .max
= 3500000 },
259 .n
= { .min
= 1, .max
= 3 },
260 .m
= { .min
= 104, .max
= 138 },
261 .m1
= { .min
= 17, .max
= 23 },
262 .m2
= { .min
= 5, .max
= 11 },
263 .p
= { .min
= 14, .max
= 42 },
264 .p1
= { .min
= 2, .max
= 6 },
265 .p2
= { .dot_limit
= 0,
266 .p2_slow
= 7, .p2_fast
= 7
270 static const intel_limit_t intel_limits_pineview_sdvo
= {
271 .dot
= { .min
= 20000, .max
= 400000},
272 .vco
= { .min
= 1700000, .max
= 3500000 },
273 /* Pineview's Ncounter is a ring counter */
274 .n
= { .min
= 3, .max
= 6 },
275 .m
= { .min
= 2, .max
= 256 },
276 /* Pineview only has one combined m divider, which we treat as m2. */
277 .m1
= { .min
= 0, .max
= 0 },
278 .m2
= { .min
= 0, .max
= 254 },
279 .p
= { .min
= 5, .max
= 80 },
280 .p1
= { .min
= 1, .max
= 8 },
281 .p2
= { .dot_limit
= 200000,
282 .p2_slow
= 10, .p2_fast
= 5 },
285 static const intel_limit_t intel_limits_pineview_lvds
= {
286 .dot
= { .min
= 20000, .max
= 400000 },
287 .vco
= { .min
= 1700000, .max
= 3500000 },
288 .n
= { .min
= 3, .max
= 6 },
289 .m
= { .min
= 2, .max
= 256 },
290 .m1
= { .min
= 0, .max
= 0 },
291 .m2
= { .min
= 0, .max
= 254 },
292 .p
= { .min
= 7, .max
= 112 },
293 .p1
= { .min
= 1, .max
= 8 },
294 .p2
= { .dot_limit
= 112000,
295 .p2_slow
= 14, .p2_fast
= 14 },
298 /* Ironlake / Sandybridge
300 * We calculate clock using (register_value + 2) for N/M1/M2, so here
301 * the range value for them is (actual_value - 2).
303 static const intel_limit_t intel_limits_ironlake_dac
= {
304 .dot
= { .min
= 25000, .max
= 350000 },
305 .vco
= { .min
= 1760000, .max
= 3510000 },
306 .n
= { .min
= 1, .max
= 5 },
307 .m
= { .min
= 79, .max
= 127 },
308 .m1
= { .min
= 12, .max
= 22 },
309 .m2
= { .min
= 5, .max
= 9 },
310 .p
= { .min
= 5, .max
= 80 },
311 .p1
= { .min
= 1, .max
= 8 },
312 .p2
= { .dot_limit
= 225000,
313 .p2_slow
= 10, .p2_fast
= 5 },
316 static const intel_limit_t intel_limits_ironlake_single_lvds
= {
317 .dot
= { .min
= 25000, .max
= 350000 },
318 .vco
= { .min
= 1760000, .max
= 3510000 },
319 .n
= { .min
= 1, .max
= 3 },
320 .m
= { .min
= 79, .max
= 118 },
321 .m1
= { .min
= 12, .max
= 22 },
322 .m2
= { .min
= 5, .max
= 9 },
323 .p
= { .min
= 28, .max
= 112 },
324 .p1
= { .min
= 2, .max
= 8 },
325 .p2
= { .dot_limit
= 225000,
326 .p2_slow
= 14, .p2_fast
= 14 },
329 static const intel_limit_t intel_limits_ironlake_dual_lvds
= {
330 .dot
= { .min
= 25000, .max
= 350000 },
331 .vco
= { .min
= 1760000, .max
= 3510000 },
332 .n
= { .min
= 1, .max
= 3 },
333 .m
= { .min
= 79, .max
= 127 },
334 .m1
= { .min
= 12, .max
= 22 },
335 .m2
= { .min
= 5, .max
= 9 },
336 .p
= { .min
= 14, .max
= 56 },
337 .p1
= { .min
= 2, .max
= 8 },
338 .p2
= { .dot_limit
= 225000,
339 .p2_slow
= 7, .p2_fast
= 7 },
342 /* LVDS 100mhz refclk limits. */
343 static const intel_limit_t intel_limits_ironlake_single_lvds_100m
= {
344 .dot
= { .min
= 25000, .max
= 350000 },
345 .vco
= { .min
= 1760000, .max
= 3510000 },
346 .n
= { .min
= 1, .max
= 2 },
347 .m
= { .min
= 79, .max
= 126 },
348 .m1
= { .min
= 12, .max
= 22 },
349 .m2
= { .min
= 5, .max
= 9 },
350 .p
= { .min
= 28, .max
= 112 },
351 .p1
= { .min
= 2, .max
= 8 },
352 .p2
= { .dot_limit
= 225000,
353 .p2_slow
= 14, .p2_fast
= 14 },
356 static const intel_limit_t intel_limits_ironlake_dual_lvds_100m
= {
357 .dot
= { .min
= 25000, .max
= 350000 },
358 .vco
= { .min
= 1760000, .max
= 3510000 },
359 .n
= { .min
= 1, .max
= 3 },
360 .m
= { .min
= 79, .max
= 126 },
361 .m1
= { .min
= 12, .max
= 22 },
362 .m2
= { .min
= 5, .max
= 9 },
363 .p
= { .min
= 14, .max
= 42 },
364 .p1
= { .min
= 2, .max
= 6 },
365 .p2
= { .dot_limit
= 225000,
366 .p2_slow
= 7, .p2_fast
= 7 },
369 static const intel_limit_t intel_limits_vlv
= {
371 * These are the data rate limits (measured in fast clocks)
372 * since those are the strictest limits we have. The fast
373 * clock and actual rate limits are more relaxed, so checking
374 * them would make no difference.
376 .dot
= { .min
= 25000 * 5, .max
= 270000 * 5 },
377 .vco
= { .min
= 4000000, .max
= 6000000 },
378 .n
= { .min
= 1, .max
= 7 },
379 .m1
= { .min
= 2, .max
= 3 },
380 .m2
= { .min
= 11, .max
= 156 },
381 .p1
= { .min
= 2, .max
= 3 },
382 .p2
= { .p2_slow
= 2, .p2_fast
= 20 }, /* slow=min, fast=max */
385 static const intel_limit_t intel_limits_chv
= {
387 * These are the data rate limits (measured in fast clocks)
388 * since those are the strictest limits we have. The fast
389 * clock and actual rate limits are more relaxed, so checking
390 * them would make no difference.
392 .dot
= { .min
= 25000 * 5, .max
= 540000 * 5},
393 .vco
= { .min
= 4860000, .max
= 6700000 },
394 .n
= { .min
= 1, .max
= 1 },
395 .m1
= { .min
= 2, .max
= 2 },
396 .m2
= { .min
= 24 << 22, .max
= 175 << 22 },
397 .p1
= { .min
= 2, .max
= 4 },
398 .p2
= { .p2_slow
= 1, .p2_fast
= 14 },
401 static void vlv_clock(int refclk
, intel_clock_t
*clock
)
403 clock
->m
= clock
->m1
* clock
->m2
;
404 clock
->p
= clock
->p1
* clock
->p2
;
405 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
407 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
);
408 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
412 * Returns whether any output on the specified pipe is of the specified type
414 static bool intel_pipe_has_type(struct drm_crtc
*crtc
, int type
)
416 struct drm_device
*dev
= crtc
->dev
;
417 struct intel_encoder
*encoder
;
419 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
420 if (encoder
->type
== type
)
426 static const intel_limit_t
*intel_ironlake_limit(struct drm_crtc
*crtc
,
429 struct drm_device
*dev
= crtc
->dev
;
430 const intel_limit_t
*limit
;
432 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
433 if (intel_is_dual_link_lvds(dev
)) {
434 if (refclk
== 100000)
435 limit
= &intel_limits_ironlake_dual_lvds_100m
;
437 limit
= &intel_limits_ironlake_dual_lvds
;
439 if (refclk
== 100000)
440 limit
= &intel_limits_ironlake_single_lvds_100m
;
442 limit
= &intel_limits_ironlake_single_lvds
;
445 limit
= &intel_limits_ironlake_dac
;
450 static const intel_limit_t
*intel_g4x_limit(struct drm_crtc
*crtc
)
452 struct drm_device
*dev
= crtc
->dev
;
453 const intel_limit_t
*limit
;
455 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
456 if (intel_is_dual_link_lvds(dev
))
457 limit
= &intel_limits_g4x_dual_channel_lvds
;
459 limit
= &intel_limits_g4x_single_channel_lvds
;
460 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
) ||
461 intel_pipe_has_type(crtc
, INTEL_OUTPUT_ANALOG
)) {
462 limit
= &intel_limits_g4x_hdmi
;
463 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_SDVO
)) {
464 limit
= &intel_limits_g4x_sdvo
;
465 } else /* The option is for other outputs */
466 limit
= &intel_limits_i9xx_sdvo
;
471 static const intel_limit_t
*intel_limit(struct drm_crtc
*crtc
, int refclk
)
473 struct drm_device
*dev
= crtc
->dev
;
474 const intel_limit_t
*limit
;
476 if (HAS_PCH_SPLIT(dev
))
477 limit
= intel_ironlake_limit(crtc
, refclk
);
478 else if (IS_G4X(dev
)) {
479 limit
= intel_g4x_limit(crtc
);
480 } else if (IS_PINEVIEW(dev
)) {
481 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
482 limit
= &intel_limits_pineview_lvds
;
484 limit
= &intel_limits_pineview_sdvo
;
485 } else if (IS_CHERRYVIEW(dev
)) {
486 limit
= &intel_limits_chv
;
487 } else if (IS_VALLEYVIEW(dev
)) {
488 limit
= &intel_limits_vlv
;
489 } else if (!IS_GEN2(dev
)) {
490 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
491 limit
= &intel_limits_i9xx_lvds
;
493 limit
= &intel_limits_i9xx_sdvo
;
495 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
496 limit
= &intel_limits_i8xx_lvds
;
497 else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DVO
))
498 limit
= &intel_limits_i8xx_dvo
;
500 limit
= &intel_limits_i8xx_dac
;
505 /* m1 is reserved as 0 in Pineview, n is a ring counter */
506 static void pineview_clock(int refclk
, intel_clock_t
*clock
)
508 clock
->m
= clock
->m2
+ 2;
509 clock
->p
= clock
->p1
* clock
->p2
;
510 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
512 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
);
513 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
516 static uint32_t i9xx_dpll_compute_m(struct dpll
*dpll
)
518 return 5 * (dpll
->m1
+ 2) + (dpll
->m2
+ 2);
521 static void i9xx_clock(int refclk
, intel_clock_t
*clock
)
523 clock
->m
= i9xx_dpll_compute_m(clock
);
524 clock
->p
= clock
->p1
* clock
->p2
;
525 if (WARN_ON(clock
->n
+ 2 == 0 || clock
->p
== 0))
527 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
+ 2);
528 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
531 static void chv_clock(int refclk
, intel_clock_t
*clock
)
533 clock
->m
= clock
->m1
* clock
->m2
;
534 clock
->p
= clock
->p1
* clock
->p2
;
535 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
537 clock
->vco
= DIV_ROUND_CLOSEST_ULL((uint64_t)refclk
* clock
->m
,
539 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
542 #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
544 * Returns whether the given set of divisors are valid for a given refclk with
545 * the given connectors.
548 static bool intel_PLL_is_valid(struct drm_device
*dev
,
549 const intel_limit_t
*limit
,
550 const intel_clock_t
*clock
)
552 if (clock
->n
< limit
->n
.min
|| limit
->n
.max
< clock
->n
)
553 INTELPllInvalid("n out of range\n");
554 if (clock
->p1
< limit
->p1
.min
|| limit
->p1
.max
< clock
->p1
)
555 INTELPllInvalid("p1 out of range\n");
556 if (clock
->m2
< limit
->m2
.min
|| limit
->m2
.max
< clock
->m2
)
557 INTELPllInvalid("m2 out of range\n");
558 if (clock
->m1
< limit
->m1
.min
|| limit
->m1
.max
< clock
->m1
)
559 INTELPllInvalid("m1 out of range\n");
561 if (!IS_PINEVIEW(dev
) && !IS_VALLEYVIEW(dev
))
562 if (clock
->m1
<= clock
->m2
)
563 INTELPllInvalid("m1 <= m2\n");
565 if (!IS_VALLEYVIEW(dev
)) {
566 if (clock
->p
< limit
->p
.min
|| limit
->p
.max
< clock
->p
)
567 INTELPllInvalid("p out of range\n");
568 if (clock
->m
< limit
->m
.min
|| limit
->m
.max
< clock
->m
)
569 INTELPllInvalid("m out of range\n");
572 if (clock
->vco
< limit
->vco
.min
|| limit
->vco
.max
< clock
->vco
)
573 INTELPllInvalid("vco out of range\n");
574 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
575 * connector, etc., rather than just a single range.
577 if (clock
->dot
< limit
->dot
.min
|| limit
->dot
.max
< clock
->dot
)
578 INTELPllInvalid("dot out of range\n");
584 i9xx_find_best_dpll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
585 int target
, int refclk
, intel_clock_t
*match_clock
,
586 intel_clock_t
*best_clock
)
588 struct drm_device
*dev
= crtc
->dev
;
592 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
594 * For LVDS just rely on its current settings for dual-channel.
595 * We haven't figured out how to reliably set up different
596 * single/dual channel state, if we even can.
598 if (intel_is_dual_link_lvds(dev
))
599 clock
.p2
= limit
->p2
.p2_fast
;
601 clock
.p2
= limit
->p2
.p2_slow
;
603 if (target
< limit
->p2
.dot_limit
)
604 clock
.p2
= limit
->p2
.p2_slow
;
606 clock
.p2
= limit
->p2
.p2_fast
;
609 memset(best_clock
, 0, sizeof(*best_clock
));
611 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
613 for (clock
.m2
= limit
->m2
.min
;
614 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
615 if (clock
.m2
>= clock
.m1
)
617 for (clock
.n
= limit
->n
.min
;
618 clock
.n
<= limit
->n
.max
; clock
.n
++) {
619 for (clock
.p1
= limit
->p1
.min
;
620 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
623 i9xx_clock(refclk
, &clock
);
624 if (!intel_PLL_is_valid(dev
, limit
,
628 clock
.p
!= match_clock
->p
)
631 this_err
= abs(clock
.dot
- target
);
632 if (this_err
< err
) {
641 return (err
!= target
);
645 pnv_find_best_dpll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
646 int target
, int refclk
, intel_clock_t
*match_clock
,
647 intel_clock_t
*best_clock
)
649 struct drm_device
*dev
= crtc
->dev
;
653 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
655 * For LVDS just rely on its current settings for dual-channel.
656 * We haven't figured out how to reliably set up different
657 * single/dual channel state, if we even can.
659 if (intel_is_dual_link_lvds(dev
))
660 clock
.p2
= limit
->p2
.p2_fast
;
662 clock
.p2
= limit
->p2
.p2_slow
;
664 if (target
< limit
->p2
.dot_limit
)
665 clock
.p2
= limit
->p2
.p2_slow
;
667 clock
.p2
= limit
->p2
.p2_fast
;
670 memset(best_clock
, 0, sizeof(*best_clock
));
672 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
674 for (clock
.m2
= limit
->m2
.min
;
675 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
676 for (clock
.n
= limit
->n
.min
;
677 clock
.n
<= limit
->n
.max
; clock
.n
++) {
678 for (clock
.p1
= limit
->p1
.min
;
679 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
682 pineview_clock(refclk
, &clock
);
683 if (!intel_PLL_is_valid(dev
, limit
,
687 clock
.p
!= match_clock
->p
)
690 this_err
= abs(clock
.dot
- target
);
691 if (this_err
< err
) {
700 return (err
!= target
);
704 g4x_find_best_dpll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
705 int target
, int refclk
, intel_clock_t
*match_clock
,
706 intel_clock_t
*best_clock
)
708 struct drm_device
*dev
= crtc
->dev
;
712 /* approximately equals target * 0.00585 */
713 int err_most
= (target
>> 8) + (target
>> 9);
716 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
717 if (intel_is_dual_link_lvds(dev
))
718 clock
.p2
= limit
->p2
.p2_fast
;
720 clock
.p2
= limit
->p2
.p2_slow
;
722 if (target
< limit
->p2
.dot_limit
)
723 clock
.p2
= limit
->p2
.p2_slow
;
725 clock
.p2
= limit
->p2
.p2_fast
;
728 memset(best_clock
, 0, sizeof(*best_clock
));
729 max_n
= limit
->n
.max
;
730 /* based on hardware requirement, prefer smaller n to precision */
731 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
732 /* based on hardware requirement, prefere larger m1,m2 */
733 for (clock
.m1
= limit
->m1
.max
;
734 clock
.m1
>= limit
->m1
.min
; clock
.m1
--) {
735 for (clock
.m2
= limit
->m2
.max
;
736 clock
.m2
>= limit
->m2
.min
; clock
.m2
--) {
737 for (clock
.p1
= limit
->p1
.max
;
738 clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
741 i9xx_clock(refclk
, &clock
);
742 if (!intel_PLL_is_valid(dev
, limit
,
746 this_err
= abs(clock
.dot
- target
);
747 if (this_err
< err_most
) {
761 vlv_find_best_dpll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
762 int target
, int refclk
, intel_clock_t
*match_clock
,
763 intel_clock_t
*best_clock
)
765 struct drm_device
*dev
= crtc
->dev
;
767 unsigned int bestppm
= 1000000;
768 /* min update 19.2 MHz */
769 int max_n
= min(limit
->n
.max
, refclk
/ 19200);
772 target
*= 5; /* fast clock */
774 memset(best_clock
, 0, sizeof(*best_clock
));
776 /* based on hardware requirement, prefer smaller n to precision */
777 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
778 for (clock
.p1
= limit
->p1
.max
; clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
779 for (clock
.p2
= limit
->p2
.p2_fast
; clock
.p2
>= limit
->p2
.p2_slow
;
780 clock
.p2
-= clock
.p2
> 10 ? 2 : 1) {
781 clock
.p
= clock
.p1
* clock
.p2
;
782 /* based on hardware requirement, prefer bigger m1,m2 values */
783 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
; clock
.m1
++) {
784 unsigned int ppm
, diff
;
786 clock
.m2
= DIV_ROUND_CLOSEST(target
* clock
.p
* clock
.n
,
789 vlv_clock(refclk
, &clock
);
791 if (!intel_PLL_is_valid(dev
, limit
,
795 diff
= abs(clock
.dot
- target
);
796 ppm
= div_u64(1000000ULL * diff
, target
);
798 if (ppm
< 100 && clock
.p
> best_clock
->p
) {
804 if (bestppm
>= 10 && ppm
< bestppm
- 10) {
818 chv_find_best_dpll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
819 int target
, int refclk
, intel_clock_t
*match_clock
,
820 intel_clock_t
*best_clock
)
822 struct drm_device
*dev
= crtc
->dev
;
827 memset(best_clock
, 0, sizeof(*best_clock
));
830 * Based on hardware doc, the n always set to 1, and m1 always
831 * set to 2. If requires to support 200Mhz refclk, we need to
832 * revisit this because n may not 1 anymore.
834 clock
.n
= 1, clock
.m1
= 2;
835 target
*= 5; /* fast clock */
837 for (clock
.p1
= limit
->p1
.max
; clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
838 for (clock
.p2
= limit
->p2
.p2_fast
;
839 clock
.p2
>= limit
->p2
.p2_slow
;
840 clock
.p2
-= clock
.p2
> 10 ? 2 : 1) {
842 clock
.p
= clock
.p1
* clock
.p2
;
844 m2
= DIV_ROUND_CLOSEST_ULL(((uint64_t)target
* clock
.p
*
845 clock
.n
) << 22, refclk
* clock
.m1
);
847 if (m2
> INT_MAX
/clock
.m1
)
852 chv_clock(refclk
, &clock
);
854 if (!intel_PLL_is_valid(dev
, limit
, &clock
))
857 /* based on hardware requirement, prefer bigger p
859 if (clock
.p
> best_clock
->p
) {
869 bool intel_crtc_active(struct drm_crtc
*crtc
)
871 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
873 /* Be paranoid as we can arrive here with only partial
874 * state retrieved from the hardware during setup.
876 * We can ditch the adjusted_mode.crtc_clock check as soon
877 * as Haswell has gained clock readout/fastboot support.
879 * We can ditch the crtc->primary->fb check as soon as we can
880 * properly reconstruct framebuffers.
882 return intel_crtc
->active
&& crtc
->primary
->fb
&&
883 intel_crtc
->config
.adjusted_mode
.crtc_clock
;
886 enum transcoder
intel_pipe_to_cpu_transcoder(struct drm_i915_private
*dev_priv
,
889 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
890 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
892 return intel_crtc
->config
.cpu_transcoder
;
895 static bool pipe_dsl_stopped(struct drm_device
*dev
, enum pipe pipe
)
897 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
898 u32 reg
= PIPEDSL(pipe
);
903 line_mask
= DSL_LINEMASK_GEN2
;
905 line_mask
= DSL_LINEMASK_GEN3
;
907 line1
= I915_READ(reg
) & line_mask
;
909 line2
= I915_READ(reg
) & line_mask
;
911 return line1
== line2
;
915 * intel_wait_for_pipe_off - wait for pipe to turn off
916 * @crtc: crtc whose pipe to wait for
918 * After disabling a pipe, we can't wait for vblank in the usual way,
919 * spinning on the vblank interrupt status bit, since we won't actually
920 * see an interrupt when the pipe is disabled.
923 * wait for the pipe register state bit to turn off
926 * wait for the display line value to settle (it usually
927 * ends up stopping at the start of the next frame).
930 static void intel_wait_for_pipe_off(struct intel_crtc
*crtc
)
932 struct drm_device
*dev
= crtc
->base
.dev
;
933 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
934 enum transcoder cpu_transcoder
= crtc
->config
.cpu_transcoder
;
935 enum pipe pipe
= crtc
->pipe
;
937 if (INTEL_INFO(dev
)->gen
>= 4) {
938 int reg
= PIPECONF(cpu_transcoder
);
940 /* Wait for the Pipe State to go off */
941 if (wait_for((I915_READ(reg
) & I965_PIPECONF_ACTIVE
) == 0,
943 WARN(1, "pipe_off wait timed out\n");
945 /* Wait for the display line to settle */
946 if (wait_for(pipe_dsl_stopped(dev
, pipe
), 100))
947 WARN(1, "pipe_off wait timed out\n");
952 * ibx_digital_port_connected - is the specified port connected?
953 * @dev_priv: i915 private structure
954 * @port: the port to test
956 * Returns true if @port is connected, false otherwise.
958 bool ibx_digital_port_connected(struct drm_i915_private
*dev_priv
,
959 struct intel_digital_port
*port
)
963 if (HAS_PCH_IBX(dev_priv
->dev
)) {
964 switch (port
->port
) {
966 bit
= SDE_PORTB_HOTPLUG
;
969 bit
= SDE_PORTC_HOTPLUG
;
972 bit
= SDE_PORTD_HOTPLUG
;
978 switch (port
->port
) {
980 bit
= SDE_PORTB_HOTPLUG_CPT
;
983 bit
= SDE_PORTC_HOTPLUG_CPT
;
986 bit
= SDE_PORTD_HOTPLUG_CPT
;
993 return I915_READ(SDEISR
) & bit
;
996 static const char *state_string(bool enabled
)
998 return enabled
? "on" : "off";
1001 /* Only for pre-ILK configs */
1002 void assert_pll(struct drm_i915_private
*dev_priv
,
1003 enum pipe pipe
, bool state
)
1010 val
= I915_READ(reg
);
1011 cur_state
= !!(val
& DPLL_VCO_ENABLE
);
1012 WARN(cur_state
!= state
,
1013 "PLL state assertion failure (expected %s, current %s)\n",
1014 state_string(state
), state_string(cur_state
));
1017 /* XXX: the dsi pll is shared between MIPI DSI ports */
1018 static void assert_dsi_pll(struct drm_i915_private
*dev_priv
, bool state
)
1023 mutex_lock(&dev_priv
->dpio_lock
);
1024 val
= vlv_cck_read(dev_priv
, CCK_REG_DSI_PLL_CONTROL
);
1025 mutex_unlock(&dev_priv
->dpio_lock
);
1027 cur_state
= val
& DSI_PLL_VCO_EN
;
1028 WARN(cur_state
!= state
,
1029 "DSI PLL state assertion failure (expected %s, current %s)\n",
1030 state_string(state
), state_string(cur_state
));
1032 #define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true)
1033 #define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false)
1035 struct intel_shared_dpll
*
1036 intel_crtc_to_shared_dpll(struct intel_crtc
*crtc
)
1038 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
1040 if (crtc
->config
.shared_dpll
< 0)
1043 return &dev_priv
->shared_dplls
[crtc
->config
.shared_dpll
];
1047 void assert_shared_dpll(struct drm_i915_private
*dev_priv
,
1048 struct intel_shared_dpll
*pll
,
1052 struct intel_dpll_hw_state hw_state
;
1055 "asserting DPLL %s with no DPLL\n", state_string(state
)))
1058 cur_state
= pll
->get_hw_state(dev_priv
, pll
, &hw_state
);
1059 WARN(cur_state
!= state
,
1060 "%s assertion failure (expected %s, current %s)\n",
1061 pll
->name
, state_string(state
), state_string(cur_state
));
1064 static void assert_fdi_tx(struct drm_i915_private
*dev_priv
,
1065 enum pipe pipe
, bool state
)
1070 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1073 if (HAS_DDI(dev_priv
->dev
)) {
1074 /* DDI does not have a specific FDI_TX register */
1075 reg
= TRANS_DDI_FUNC_CTL(cpu_transcoder
);
1076 val
= I915_READ(reg
);
1077 cur_state
= !!(val
& TRANS_DDI_FUNC_ENABLE
);
1079 reg
= FDI_TX_CTL(pipe
);
1080 val
= I915_READ(reg
);
1081 cur_state
= !!(val
& FDI_TX_ENABLE
);
1083 WARN(cur_state
!= state
,
1084 "FDI TX state assertion failure (expected %s, current %s)\n",
1085 state_string(state
), state_string(cur_state
));
1087 #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
1088 #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
1090 static void assert_fdi_rx(struct drm_i915_private
*dev_priv
,
1091 enum pipe pipe
, bool state
)
1097 reg
= FDI_RX_CTL(pipe
);
1098 val
= I915_READ(reg
);
1099 cur_state
= !!(val
& FDI_RX_ENABLE
);
1100 WARN(cur_state
!= state
,
1101 "FDI RX state assertion failure (expected %s, current %s)\n",
1102 state_string(state
), state_string(cur_state
));
1104 #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
1105 #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
1107 static void assert_fdi_tx_pll_enabled(struct drm_i915_private
*dev_priv
,
1113 /* ILK FDI PLL is always enabled */
1114 if (INTEL_INFO(dev_priv
->dev
)->gen
== 5)
1117 /* On Haswell, DDI ports are responsible for the FDI PLL setup */
1118 if (HAS_DDI(dev_priv
->dev
))
1121 reg
= FDI_TX_CTL(pipe
);
1122 val
= I915_READ(reg
);
1123 WARN(!(val
& FDI_TX_PLL_ENABLE
), "FDI TX PLL assertion failure, should be active but is disabled\n");
1126 void assert_fdi_rx_pll(struct drm_i915_private
*dev_priv
,
1127 enum pipe pipe
, bool state
)
1133 reg
= FDI_RX_CTL(pipe
);
1134 val
= I915_READ(reg
);
1135 cur_state
= !!(val
& FDI_RX_PLL_ENABLE
);
1136 WARN(cur_state
!= state
,
1137 "FDI RX PLL assertion failure (expected %s, current %s)\n",
1138 state_string(state
), state_string(cur_state
));
1141 static void assert_panel_unlocked(struct drm_i915_private
*dev_priv
,
1144 struct drm_device
*dev
= dev_priv
->dev
;
1147 enum pipe panel_pipe
= PIPE_A
;
1150 if (WARN_ON(HAS_DDI(dev
)))
1153 if (HAS_PCH_SPLIT(dev
)) {
1156 pp_reg
= PCH_PP_CONTROL
;
1157 port_sel
= I915_READ(PCH_PP_ON_DELAYS
) & PANEL_PORT_SELECT_MASK
;
1159 if (port_sel
== PANEL_PORT_SELECT_LVDS
&&
1160 I915_READ(PCH_LVDS
) & LVDS_PIPEB_SELECT
)
1161 panel_pipe
= PIPE_B
;
1162 /* XXX: else fix for eDP */
1163 } else if (IS_VALLEYVIEW(dev
)) {
1164 /* presumably write lock depends on pipe, not port select */
1165 pp_reg
= VLV_PIPE_PP_CONTROL(pipe
);
1168 pp_reg
= PP_CONTROL
;
1169 if (I915_READ(LVDS
) & LVDS_PIPEB_SELECT
)
1170 panel_pipe
= PIPE_B
;
1173 val
= I915_READ(pp_reg
);
1174 if (!(val
& PANEL_POWER_ON
) ||
1175 ((val
& PANEL_UNLOCK_MASK
) == PANEL_UNLOCK_REGS
))
1178 WARN(panel_pipe
== pipe
&& locked
,
1179 "panel assertion failure, pipe %c regs locked\n",
1183 static void assert_cursor(struct drm_i915_private
*dev_priv
,
1184 enum pipe pipe
, bool state
)
1186 struct drm_device
*dev
= dev_priv
->dev
;
1189 if (IS_845G(dev
) || IS_I865G(dev
))
1190 cur_state
= I915_READ(_CURACNTR
) & CURSOR_ENABLE
;
1192 cur_state
= I915_READ(CURCNTR(pipe
)) & CURSOR_MODE
;
1194 WARN(cur_state
!= state
,
1195 "cursor on pipe %c assertion failure (expected %s, current %s)\n",
1196 pipe_name(pipe
), state_string(state
), state_string(cur_state
));
1198 #define assert_cursor_enabled(d, p) assert_cursor(d, p, true)
1199 #define assert_cursor_disabled(d, p) assert_cursor(d, p, false)
1201 void assert_pipe(struct drm_i915_private
*dev_priv
,
1202 enum pipe pipe
, bool state
)
1207 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1210 /* if we need the pipe quirk it must be always on */
1211 if ((pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
1212 (pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
1215 if (!intel_display_power_enabled(dev_priv
,
1216 POWER_DOMAIN_TRANSCODER(cpu_transcoder
))) {
1219 reg
= PIPECONF(cpu_transcoder
);
1220 val
= I915_READ(reg
);
1221 cur_state
= !!(val
& PIPECONF_ENABLE
);
1224 WARN(cur_state
!= state
,
1225 "pipe %c assertion failure (expected %s, current %s)\n",
1226 pipe_name(pipe
), state_string(state
), state_string(cur_state
));
1229 static void assert_plane(struct drm_i915_private
*dev_priv
,
1230 enum plane plane
, bool state
)
1236 reg
= DSPCNTR(plane
);
1237 val
= I915_READ(reg
);
1238 cur_state
= !!(val
& DISPLAY_PLANE_ENABLE
);
1239 WARN(cur_state
!= state
,
1240 "plane %c assertion failure (expected %s, current %s)\n",
1241 plane_name(plane
), state_string(state
), state_string(cur_state
));
1244 #define assert_plane_enabled(d, p) assert_plane(d, p, true)
1245 #define assert_plane_disabled(d, p) assert_plane(d, p, false)
1247 static void assert_planes_disabled(struct drm_i915_private
*dev_priv
,
1250 struct drm_device
*dev
= dev_priv
->dev
;
1255 /* Primary planes are fixed to pipes on gen4+ */
1256 if (INTEL_INFO(dev
)->gen
>= 4) {
1257 reg
= DSPCNTR(pipe
);
1258 val
= I915_READ(reg
);
1259 WARN(val
& DISPLAY_PLANE_ENABLE
,
1260 "plane %c assertion failure, should be disabled but not\n",
1265 /* Need to check both planes against the pipe */
1266 for_each_pipe(dev_priv
, i
) {
1268 val
= I915_READ(reg
);
1269 cur_pipe
= (val
& DISPPLANE_SEL_PIPE_MASK
) >>
1270 DISPPLANE_SEL_PIPE_SHIFT
;
1271 WARN((val
& DISPLAY_PLANE_ENABLE
) && pipe
== cur_pipe
,
1272 "plane %c assertion failure, should be off on pipe %c but is still active\n",
1273 plane_name(i
), pipe_name(pipe
));
1277 static void assert_sprites_disabled(struct drm_i915_private
*dev_priv
,
1280 struct drm_device
*dev
= dev_priv
->dev
;
1284 if (IS_VALLEYVIEW(dev
)) {
1285 for_each_sprite(pipe
, sprite
) {
1286 reg
= SPCNTR(pipe
, sprite
);
1287 val
= I915_READ(reg
);
1288 WARN(val
& SP_ENABLE
,
1289 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1290 sprite_name(pipe
, sprite
), pipe_name(pipe
));
1292 } else if (INTEL_INFO(dev
)->gen
>= 7) {
1294 val
= I915_READ(reg
);
1295 WARN(val
& SPRITE_ENABLE
,
1296 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1297 plane_name(pipe
), pipe_name(pipe
));
1298 } else if (INTEL_INFO(dev
)->gen
>= 5) {
1299 reg
= DVSCNTR(pipe
);
1300 val
= I915_READ(reg
);
1301 WARN(val
& DVS_ENABLE
,
1302 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1303 plane_name(pipe
), pipe_name(pipe
));
1307 static void assert_vblank_disabled(struct drm_crtc
*crtc
)
1309 if (WARN_ON(drm_crtc_vblank_get(crtc
) == 0))
1310 drm_crtc_vblank_put(crtc
);
1313 static void ibx_assert_pch_refclk_enabled(struct drm_i915_private
*dev_priv
)
1318 WARN_ON(!(HAS_PCH_IBX(dev_priv
->dev
) || HAS_PCH_CPT(dev_priv
->dev
)));
1320 val
= I915_READ(PCH_DREF_CONTROL
);
1321 enabled
= !!(val
& (DREF_SSC_SOURCE_MASK
| DREF_NONSPREAD_SOURCE_MASK
|
1322 DREF_SUPERSPREAD_SOURCE_MASK
));
1323 WARN(!enabled
, "PCH refclk assertion failure, should be active but is disabled\n");
1326 static void assert_pch_transcoder_disabled(struct drm_i915_private
*dev_priv
,
1333 reg
= PCH_TRANSCONF(pipe
);
1334 val
= I915_READ(reg
);
1335 enabled
= !!(val
& TRANS_ENABLE
);
1337 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1341 static bool dp_pipe_enabled(struct drm_i915_private
*dev_priv
,
1342 enum pipe pipe
, u32 port_sel
, u32 val
)
1344 if ((val
& DP_PORT_EN
) == 0)
1347 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1348 u32 trans_dp_ctl_reg
= TRANS_DP_CTL(pipe
);
1349 u32 trans_dp_ctl
= I915_READ(trans_dp_ctl_reg
);
1350 if ((trans_dp_ctl
& TRANS_DP_PORT_SEL_MASK
) != port_sel
)
1352 } else if (IS_CHERRYVIEW(dev_priv
->dev
)) {
1353 if ((val
& DP_PIPE_MASK_CHV
) != DP_PIPE_SELECT_CHV(pipe
))
1356 if ((val
& DP_PIPE_MASK
) != (pipe
<< 30))
1362 static bool hdmi_pipe_enabled(struct drm_i915_private
*dev_priv
,
1363 enum pipe pipe
, u32 val
)
1365 if ((val
& SDVO_ENABLE
) == 0)
1368 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1369 if ((val
& SDVO_PIPE_SEL_MASK_CPT
) != SDVO_PIPE_SEL_CPT(pipe
))
1371 } else if (IS_CHERRYVIEW(dev_priv
->dev
)) {
1372 if ((val
& SDVO_PIPE_SEL_MASK_CHV
) != SDVO_PIPE_SEL_CHV(pipe
))
1375 if ((val
& SDVO_PIPE_SEL_MASK
) != SDVO_PIPE_SEL(pipe
))
1381 static bool lvds_pipe_enabled(struct drm_i915_private
*dev_priv
,
1382 enum pipe pipe
, u32 val
)
1384 if ((val
& LVDS_PORT_EN
) == 0)
1387 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1388 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1391 if ((val
& LVDS_PIPE_MASK
) != LVDS_PIPE(pipe
))
1397 static bool adpa_pipe_enabled(struct drm_i915_private
*dev_priv
,
1398 enum pipe pipe
, u32 val
)
1400 if ((val
& ADPA_DAC_ENABLE
) == 0)
1402 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1403 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1406 if ((val
& ADPA_PIPE_SELECT_MASK
) != ADPA_PIPE_SELECT(pipe
))
1412 static void assert_pch_dp_disabled(struct drm_i915_private
*dev_priv
,
1413 enum pipe pipe
, int reg
, u32 port_sel
)
1415 u32 val
= I915_READ(reg
);
1416 WARN(dp_pipe_enabled(dev_priv
, pipe
, port_sel
, val
),
1417 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
1418 reg
, pipe_name(pipe
));
1420 WARN(HAS_PCH_IBX(dev_priv
->dev
) && (val
& DP_PORT_EN
) == 0
1421 && (val
& DP_PIPEB_SELECT
),
1422 "IBX PCH dp port still using transcoder B\n");
1425 static void assert_pch_hdmi_disabled(struct drm_i915_private
*dev_priv
,
1426 enum pipe pipe
, int reg
)
1428 u32 val
= I915_READ(reg
);
1429 WARN(hdmi_pipe_enabled(dev_priv
, pipe
, val
),
1430 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
1431 reg
, pipe_name(pipe
));
1433 WARN(HAS_PCH_IBX(dev_priv
->dev
) && (val
& SDVO_ENABLE
) == 0
1434 && (val
& SDVO_PIPE_B_SELECT
),
1435 "IBX PCH hdmi port still using transcoder B\n");
1438 static void assert_pch_ports_disabled(struct drm_i915_private
*dev_priv
,
1444 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_B
, TRANS_DP_PORT_SEL_B
);
1445 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_C
, TRANS_DP_PORT_SEL_C
);
1446 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_D
, TRANS_DP_PORT_SEL_D
);
1449 val
= I915_READ(reg
);
1450 WARN(adpa_pipe_enabled(dev_priv
, pipe
, val
),
1451 "PCH VGA enabled on transcoder %c, should be disabled\n",
1455 val
= I915_READ(reg
);
1456 WARN(lvds_pipe_enabled(dev_priv
, pipe
, val
),
1457 "PCH LVDS enabled on transcoder %c, should be disabled\n",
1460 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIB
);
1461 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIC
);
1462 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMID
);
1465 static void intel_init_dpio(struct drm_device
*dev
)
1467 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1469 if (!IS_VALLEYVIEW(dev
))
1473 * IOSF_PORT_DPIO is used for VLV x2 PHY (DP/HDMI B and C),
1474 * CHV x1 PHY (DP/HDMI D)
1475 * IOSF_PORT_DPIO_2 is used for CHV x2 PHY (DP/HDMI B and C)
1477 if (IS_CHERRYVIEW(dev
)) {
1478 DPIO_PHY_IOSF_PORT(DPIO_PHY0
) = IOSF_PORT_DPIO_2
;
1479 DPIO_PHY_IOSF_PORT(DPIO_PHY1
) = IOSF_PORT_DPIO
;
1481 DPIO_PHY_IOSF_PORT(DPIO_PHY0
) = IOSF_PORT_DPIO
;
1485 static void vlv_enable_pll(struct intel_crtc
*crtc
)
1487 struct drm_device
*dev
= crtc
->base
.dev
;
1488 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1489 int reg
= DPLL(crtc
->pipe
);
1490 u32 dpll
= crtc
->config
.dpll_hw_state
.dpll
;
1492 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1494 /* No really, not for ILK+ */
1495 BUG_ON(!IS_VALLEYVIEW(dev_priv
->dev
));
1497 /* PLL is protected by panel, make sure we can write it */
1498 if (IS_MOBILE(dev_priv
->dev
))
1499 assert_panel_unlocked(dev_priv
, crtc
->pipe
);
1501 I915_WRITE(reg
, dpll
);
1505 if (wait_for(((I915_READ(reg
) & DPLL_LOCK_VLV
) == DPLL_LOCK_VLV
), 1))
1506 DRM_ERROR("DPLL %d failed to lock\n", crtc
->pipe
);
1508 I915_WRITE(DPLL_MD(crtc
->pipe
), crtc
->config
.dpll_hw_state
.dpll_md
);
1509 POSTING_READ(DPLL_MD(crtc
->pipe
));
1511 /* We do this three times for luck */
1512 I915_WRITE(reg
, dpll
);
1514 udelay(150); /* wait for warmup */
1515 I915_WRITE(reg
, dpll
);
1517 udelay(150); /* wait for warmup */
1518 I915_WRITE(reg
, dpll
);
1520 udelay(150); /* wait for warmup */
1523 static void chv_enable_pll(struct intel_crtc
*crtc
)
1525 struct drm_device
*dev
= crtc
->base
.dev
;
1526 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1527 int pipe
= crtc
->pipe
;
1528 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
1531 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1533 BUG_ON(!IS_CHERRYVIEW(dev_priv
->dev
));
1535 mutex_lock(&dev_priv
->dpio_lock
);
1537 /* Enable back the 10bit clock to display controller */
1538 tmp
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
));
1539 tmp
|= DPIO_DCLKP_EN
;
1540 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
), tmp
);
1543 * Need to wait > 100ns between dclkp clock enable bit and PLL enable.
1548 I915_WRITE(DPLL(pipe
), crtc
->config
.dpll_hw_state
.dpll
);
1550 /* Check PLL is locked */
1551 if (wait_for(((I915_READ(DPLL(pipe
)) & DPLL_LOCK_VLV
) == DPLL_LOCK_VLV
), 1))
1552 DRM_ERROR("PLL %d failed to lock\n", pipe
);
1554 /* not sure when this should be written */
1555 I915_WRITE(DPLL_MD(pipe
), crtc
->config
.dpll_hw_state
.dpll_md
);
1556 POSTING_READ(DPLL_MD(pipe
));
1558 mutex_unlock(&dev_priv
->dpio_lock
);
1561 static int intel_num_dvo_pipes(struct drm_device
*dev
)
1563 struct intel_crtc
*crtc
;
1566 for_each_intel_crtc(dev
, crtc
)
1567 count
+= crtc
->active
&&
1568 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DVO
);
1573 static void i9xx_enable_pll(struct intel_crtc
*crtc
)
1575 struct drm_device
*dev
= crtc
->base
.dev
;
1576 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1577 int reg
= DPLL(crtc
->pipe
);
1578 u32 dpll
= crtc
->config
.dpll_hw_state
.dpll
;
1580 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1582 /* No really, not for ILK+ */
1583 BUG_ON(INTEL_INFO(dev
)->gen
>= 5);
1585 /* PLL is protected by panel, make sure we can write it */
1586 if (IS_MOBILE(dev
) && !IS_I830(dev
))
1587 assert_panel_unlocked(dev_priv
, crtc
->pipe
);
1589 /* Enable DVO 2x clock on both PLLs if necessary */
1590 if (IS_I830(dev
) && intel_num_dvo_pipes(dev
) > 0) {
1592 * It appears to be important that we don't enable this
1593 * for the current pipe before otherwise configuring the
1594 * PLL. No idea how this should be handled if multiple
1595 * DVO outputs are enabled simultaneosly.
1597 dpll
|= DPLL_DVO_2X_MODE
;
1598 I915_WRITE(DPLL(!crtc
->pipe
),
1599 I915_READ(DPLL(!crtc
->pipe
)) | DPLL_DVO_2X_MODE
);
1602 /* Wait for the clocks to stabilize. */
1606 if (INTEL_INFO(dev
)->gen
>= 4) {
1607 I915_WRITE(DPLL_MD(crtc
->pipe
),
1608 crtc
->config
.dpll_hw_state
.dpll_md
);
1610 /* The pixel multiplier can only be updated once the
1611 * DPLL is enabled and the clocks are stable.
1613 * So write it again.
1615 I915_WRITE(reg
, dpll
);
1618 /* We do this three times for luck */
1619 I915_WRITE(reg
, dpll
);
1621 udelay(150); /* wait for warmup */
1622 I915_WRITE(reg
, dpll
);
1624 udelay(150); /* wait for warmup */
1625 I915_WRITE(reg
, dpll
);
1627 udelay(150); /* wait for warmup */
1631 * i9xx_disable_pll - disable a PLL
1632 * @dev_priv: i915 private structure
1633 * @pipe: pipe PLL to disable
1635 * Disable the PLL for @pipe, making sure the pipe is off first.
1637 * Note! This is for pre-ILK only.
1639 static void i9xx_disable_pll(struct intel_crtc
*crtc
)
1641 struct drm_device
*dev
= crtc
->base
.dev
;
1642 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1643 enum pipe pipe
= crtc
->pipe
;
1645 /* Disable DVO 2x clock on both PLLs if necessary */
1647 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DVO
) &&
1648 intel_num_dvo_pipes(dev
) == 1) {
1649 I915_WRITE(DPLL(PIPE_B
),
1650 I915_READ(DPLL(PIPE_B
)) & ~DPLL_DVO_2X_MODE
);
1651 I915_WRITE(DPLL(PIPE_A
),
1652 I915_READ(DPLL(PIPE_A
)) & ~DPLL_DVO_2X_MODE
);
1655 /* Don't disable pipe or pipe PLLs if needed */
1656 if ((pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
1657 (pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
1660 /* Make sure the pipe isn't still relying on us */
1661 assert_pipe_disabled(dev_priv
, pipe
);
1663 I915_WRITE(DPLL(pipe
), 0);
1664 POSTING_READ(DPLL(pipe
));
1667 static void vlv_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1671 /* Make sure the pipe isn't still relying on us */
1672 assert_pipe_disabled(dev_priv
, pipe
);
1675 * Leave integrated clock source and reference clock enabled for pipe B.
1676 * The latter is needed for VGA hotplug / manual detection.
1679 val
= DPLL_INTEGRATED_CRI_CLK_VLV
| DPLL_REFA_CLK_ENABLE_VLV
;
1680 I915_WRITE(DPLL(pipe
), val
);
1681 POSTING_READ(DPLL(pipe
));
1685 static void chv_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1687 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
1690 /* Make sure the pipe isn't still relying on us */
1691 assert_pipe_disabled(dev_priv
, pipe
);
1693 /* Set PLL en = 0 */
1694 val
= DPLL_SSC_REF_CLOCK_CHV
| DPLL_REFA_CLK_ENABLE_VLV
;
1696 val
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
1697 I915_WRITE(DPLL(pipe
), val
);
1698 POSTING_READ(DPLL(pipe
));
1700 mutex_lock(&dev_priv
->dpio_lock
);
1702 /* Disable 10bit clock to display controller */
1703 val
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
));
1704 val
&= ~DPIO_DCLKP_EN
;
1705 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
), val
);
1707 /* disable left/right clock distribution */
1708 if (pipe
!= PIPE_B
) {
1709 val
= vlv_dpio_read(dev_priv
, pipe
, _CHV_CMN_DW5_CH0
);
1710 val
&= ~(CHV_BUFLEFTENA1_MASK
| CHV_BUFRIGHTENA1_MASK
);
1711 vlv_dpio_write(dev_priv
, pipe
, _CHV_CMN_DW5_CH0
, val
);
1713 val
= vlv_dpio_read(dev_priv
, pipe
, _CHV_CMN_DW1_CH1
);
1714 val
&= ~(CHV_BUFLEFTENA2_MASK
| CHV_BUFRIGHTENA2_MASK
);
1715 vlv_dpio_write(dev_priv
, pipe
, _CHV_CMN_DW1_CH1
, val
);
1718 mutex_unlock(&dev_priv
->dpio_lock
);
1721 void vlv_wait_port_ready(struct drm_i915_private
*dev_priv
,
1722 struct intel_digital_port
*dport
)
1727 switch (dport
->port
) {
1729 port_mask
= DPLL_PORTB_READY_MASK
;
1733 port_mask
= DPLL_PORTC_READY_MASK
;
1737 port_mask
= DPLL_PORTD_READY_MASK
;
1738 dpll_reg
= DPIO_PHY_STATUS
;
1744 if (wait_for((I915_READ(dpll_reg
) & port_mask
) == 0, 1000))
1745 WARN(1, "timed out waiting for port %c ready: 0x%08x\n",
1746 port_name(dport
->port
), I915_READ(dpll_reg
));
1749 static void intel_prepare_shared_dpll(struct intel_crtc
*crtc
)
1751 struct drm_device
*dev
= crtc
->base
.dev
;
1752 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1753 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
1755 if (WARN_ON(pll
== NULL
))
1758 WARN_ON(!pll
->refcount
);
1759 if (pll
->active
== 0) {
1760 DRM_DEBUG_DRIVER("setting up %s\n", pll
->name
);
1762 assert_shared_dpll_disabled(dev_priv
, pll
);
1764 pll
->mode_set(dev_priv
, pll
);
1769 * intel_enable_shared_dpll - enable PCH PLL
1770 * @dev_priv: i915 private structure
1771 * @pipe: pipe PLL to enable
1773 * The PCH PLL needs to be enabled before the PCH transcoder, since it
1774 * drives the transcoder clock.
1776 static void intel_enable_shared_dpll(struct intel_crtc
*crtc
)
1778 struct drm_device
*dev
= crtc
->base
.dev
;
1779 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1780 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
1782 if (WARN_ON(pll
== NULL
))
1785 if (WARN_ON(pll
->refcount
== 0))
1788 DRM_DEBUG_KMS("enable %s (active %d, on? %d) for crtc %d\n",
1789 pll
->name
, pll
->active
, pll
->on
,
1790 crtc
->base
.base
.id
);
1792 if (pll
->active
++) {
1794 assert_shared_dpll_enabled(dev_priv
, pll
);
1799 intel_display_power_get(dev_priv
, POWER_DOMAIN_PLLS
);
1801 DRM_DEBUG_KMS("enabling %s\n", pll
->name
);
1802 pll
->enable(dev_priv
, pll
);
1806 static void intel_disable_shared_dpll(struct intel_crtc
*crtc
)
1808 struct drm_device
*dev
= crtc
->base
.dev
;
1809 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1810 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
1812 /* PCH only available on ILK+ */
1813 BUG_ON(INTEL_INFO(dev
)->gen
< 5);
1814 if (WARN_ON(pll
== NULL
))
1817 if (WARN_ON(pll
->refcount
== 0))
1820 DRM_DEBUG_KMS("disable %s (active %d, on? %d) for crtc %d\n",
1821 pll
->name
, pll
->active
, pll
->on
,
1822 crtc
->base
.base
.id
);
1824 if (WARN_ON(pll
->active
== 0)) {
1825 assert_shared_dpll_disabled(dev_priv
, pll
);
1829 assert_shared_dpll_enabled(dev_priv
, pll
);
1834 DRM_DEBUG_KMS("disabling %s\n", pll
->name
);
1835 pll
->disable(dev_priv
, pll
);
1838 intel_display_power_put(dev_priv
, POWER_DOMAIN_PLLS
);
1841 static void ironlake_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1844 struct drm_device
*dev
= dev_priv
->dev
;
1845 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
1846 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
1847 uint32_t reg
, val
, pipeconf_val
;
1849 /* PCH only available on ILK+ */
1850 BUG_ON(!HAS_PCH_SPLIT(dev
));
1852 /* Make sure PCH DPLL is enabled */
1853 assert_shared_dpll_enabled(dev_priv
,
1854 intel_crtc_to_shared_dpll(intel_crtc
));
1856 /* FDI must be feeding us bits for PCH ports */
1857 assert_fdi_tx_enabled(dev_priv
, pipe
);
1858 assert_fdi_rx_enabled(dev_priv
, pipe
);
1860 if (HAS_PCH_CPT(dev
)) {
1861 /* Workaround: Set the timing override bit before enabling the
1862 * pch transcoder. */
1863 reg
= TRANS_CHICKEN2(pipe
);
1864 val
= I915_READ(reg
);
1865 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
1866 I915_WRITE(reg
, val
);
1869 reg
= PCH_TRANSCONF(pipe
);
1870 val
= I915_READ(reg
);
1871 pipeconf_val
= I915_READ(PIPECONF(pipe
));
1873 if (HAS_PCH_IBX(dev_priv
->dev
)) {
1875 * make the BPC in transcoder be consistent with
1876 * that in pipeconf reg.
1878 val
&= ~PIPECONF_BPC_MASK
;
1879 val
|= pipeconf_val
& PIPECONF_BPC_MASK
;
1882 val
&= ~TRANS_INTERLACE_MASK
;
1883 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK
) == PIPECONF_INTERLACED_ILK
)
1884 if (HAS_PCH_IBX(dev_priv
->dev
) &&
1885 intel_pipe_has_type(crtc
, INTEL_OUTPUT_SDVO
))
1886 val
|= TRANS_LEGACY_INTERLACED_ILK
;
1888 val
|= TRANS_INTERLACED
;
1890 val
|= TRANS_PROGRESSIVE
;
1892 I915_WRITE(reg
, val
| TRANS_ENABLE
);
1893 if (wait_for(I915_READ(reg
) & TRANS_STATE_ENABLE
, 100))
1894 DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe
));
1897 static void lpt_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1898 enum transcoder cpu_transcoder
)
1900 u32 val
, pipeconf_val
;
1902 /* PCH only available on ILK+ */
1903 BUG_ON(!HAS_PCH_SPLIT(dev_priv
->dev
));
1905 /* FDI must be feeding us bits for PCH ports */
1906 assert_fdi_tx_enabled(dev_priv
, (enum pipe
) cpu_transcoder
);
1907 assert_fdi_rx_enabled(dev_priv
, TRANSCODER_A
);
1909 /* Workaround: set timing override bit. */
1910 val
= I915_READ(_TRANSA_CHICKEN2
);
1911 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
1912 I915_WRITE(_TRANSA_CHICKEN2
, val
);
1915 pipeconf_val
= I915_READ(PIPECONF(cpu_transcoder
));
1917 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK_HSW
) ==
1918 PIPECONF_INTERLACED_ILK
)
1919 val
|= TRANS_INTERLACED
;
1921 val
|= TRANS_PROGRESSIVE
;
1923 I915_WRITE(LPT_TRANSCONF
, val
);
1924 if (wait_for(I915_READ(LPT_TRANSCONF
) & TRANS_STATE_ENABLE
, 100))
1925 DRM_ERROR("Failed to enable PCH transcoder\n");
1928 static void ironlake_disable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1931 struct drm_device
*dev
= dev_priv
->dev
;
1934 /* FDI relies on the transcoder */
1935 assert_fdi_tx_disabled(dev_priv
, pipe
);
1936 assert_fdi_rx_disabled(dev_priv
, pipe
);
1938 /* Ports must be off as well */
1939 assert_pch_ports_disabled(dev_priv
, pipe
);
1941 reg
= PCH_TRANSCONF(pipe
);
1942 val
= I915_READ(reg
);
1943 val
&= ~TRANS_ENABLE
;
1944 I915_WRITE(reg
, val
);
1945 /* wait for PCH transcoder off, transcoder state */
1946 if (wait_for((I915_READ(reg
) & TRANS_STATE_ENABLE
) == 0, 50))
1947 DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe
));
1949 if (!HAS_PCH_IBX(dev
)) {
1950 /* Workaround: Clear the timing override chicken bit again. */
1951 reg
= TRANS_CHICKEN2(pipe
);
1952 val
= I915_READ(reg
);
1953 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
1954 I915_WRITE(reg
, val
);
1958 static void lpt_disable_pch_transcoder(struct drm_i915_private
*dev_priv
)
1962 val
= I915_READ(LPT_TRANSCONF
);
1963 val
&= ~TRANS_ENABLE
;
1964 I915_WRITE(LPT_TRANSCONF
, val
);
1965 /* wait for PCH transcoder off, transcoder state */
1966 if (wait_for((I915_READ(LPT_TRANSCONF
) & TRANS_STATE_ENABLE
) == 0, 50))
1967 DRM_ERROR("Failed to disable PCH transcoder\n");
1969 /* Workaround: clear timing override bit. */
1970 val
= I915_READ(_TRANSA_CHICKEN2
);
1971 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
1972 I915_WRITE(_TRANSA_CHICKEN2
, val
);
1976 * intel_enable_pipe - enable a pipe, asserting requirements
1977 * @crtc: crtc responsible for the pipe
1979 * Enable @crtc's pipe, making sure that various hardware specific requirements
1980 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
1982 static void intel_enable_pipe(struct intel_crtc
*crtc
)
1984 struct drm_device
*dev
= crtc
->base
.dev
;
1985 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1986 enum pipe pipe
= crtc
->pipe
;
1987 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1989 enum pipe pch_transcoder
;
1993 assert_planes_disabled(dev_priv
, pipe
);
1994 assert_cursor_disabled(dev_priv
, pipe
);
1995 assert_sprites_disabled(dev_priv
, pipe
);
1997 if (HAS_PCH_LPT(dev_priv
->dev
))
1998 pch_transcoder
= TRANSCODER_A
;
2000 pch_transcoder
= pipe
;
2003 * A pipe without a PLL won't actually be able to drive bits from
2004 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
2007 if (!HAS_PCH_SPLIT(dev_priv
->dev
))
2008 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DSI
))
2009 assert_dsi_pll_enabled(dev_priv
);
2011 assert_pll_enabled(dev_priv
, pipe
);
2013 if (crtc
->config
.has_pch_encoder
) {
2014 /* if driving the PCH, we need FDI enabled */
2015 assert_fdi_rx_pll_enabled(dev_priv
, pch_transcoder
);
2016 assert_fdi_tx_pll_enabled(dev_priv
,
2017 (enum pipe
) cpu_transcoder
);
2019 /* FIXME: assert CPU port conditions for SNB+ */
2022 reg
= PIPECONF(cpu_transcoder
);
2023 val
= I915_READ(reg
);
2024 if (val
& PIPECONF_ENABLE
) {
2025 WARN_ON(!((pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
2026 (pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
)));
2030 I915_WRITE(reg
, val
| PIPECONF_ENABLE
);
2035 * intel_disable_pipe - disable a pipe, asserting requirements
2036 * @crtc: crtc whose pipes is to be disabled
2038 * Disable the pipe of @crtc, making sure that various hardware
2039 * specific requirements are met, if applicable, e.g. plane
2040 * disabled, panel fitter off, etc.
2042 * Will wait until the pipe has shut down before returning.
2044 static void intel_disable_pipe(struct intel_crtc
*crtc
)
2046 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
2047 enum transcoder cpu_transcoder
= crtc
->config
.cpu_transcoder
;
2048 enum pipe pipe
= crtc
->pipe
;
2053 * Make sure planes won't keep trying to pump pixels to us,
2054 * or we might hang the display.
2056 assert_planes_disabled(dev_priv
, pipe
);
2057 assert_cursor_disabled(dev_priv
, pipe
);
2058 assert_sprites_disabled(dev_priv
, pipe
);
2060 reg
= PIPECONF(cpu_transcoder
);
2061 val
= I915_READ(reg
);
2062 if ((val
& PIPECONF_ENABLE
) == 0)
2066 * Double wide has implications for planes
2067 * so best keep it disabled when not needed.
2069 if (crtc
->config
.double_wide
)
2070 val
&= ~PIPECONF_DOUBLE_WIDE
;
2072 /* Don't disable pipe or pipe PLLs if needed */
2073 if (!(pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) &&
2074 !(pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
2075 val
&= ~PIPECONF_ENABLE
;
2077 I915_WRITE(reg
, val
);
2078 if ((val
& PIPECONF_ENABLE
) == 0)
2079 intel_wait_for_pipe_off(crtc
);
2083 * Plane regs are double buffered, going from enabled->disabled needs a
2084 * trigger in order to latch. The display address reg provides this.
2086 void intel_flush_primary_plane(struct drm_i915_private
*dev_priv
,
2089 struct drm_device
*dev
= dev_priv
->dev
;
2090 u32 reg
= INTEL_INFO(dev
)->gen
>= 4 ? DSPSURF(plane
) : DSPADDR(plane
);
2092 I915_WRITE(reg
, I915_READ(reg
));
2097 * intel_enable_primary_hw_plane - enable the primary plane on a given pipe
2098 * @plane: plane to be enabled
2099 * @crtc: crtc for the plane
2101 * Enable @plane on @crtc, making sure that the pipe is running first.
2103 static void intel_enable_primary_hw_plane(struct drm_plane
*plane
,
2104 struct drm_crtc
*crtc
)
2106 struct drm_device
*dev
= plane
->dev
;
2107 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2108 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2110 /* If the pipe isn't enabled, we can't pump pixels and may hang */
2111 assert_pipe_enabled(dev_priv
, intel_crtc
->pipe
);
2113 if (intel_crtc
->primary_enabled
)
2116 intel_crtc
->primary_enabled
= true;
2118 dev_priv
->display
.update_primary_plane(crtc
, plane
->fb
,
2122 * BDW signals flip done immediately if the plane
2123 * is disabled, even if the plane enable is already
2124 * armed to occur at the next vblank :(
2126 if (IS_BROADWELL(dev
))
2127 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
2131 * intel_disable_primary_hw_plane - disable the primary hardware plane
2132 * @plane: plane to be disabled
2133 * @crtc: crtc for the plane
2135 * Disable @plane on @crtc, making sure that the pipe is running first.
2137 static void intel_disable_primary_hw_plane(struct drm_plane
*plane
,
2138 struct drm_crtc
*crtc
)
2140 struct drm_device
*dev
= plane
->dev
;
2141 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2142 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2144 assert_pipe_enabled(dev_priv
, intel_crtc
->pipe
);
2146 if (!intel_crtc
->primary_enabled
)
2149 intel_crtc
->primary_enabled
= false;
2151 dev_priv
->display
.update_primary_plane(crtc
, plane
->fb
,
2155 static bool need_vtd_wa(struct drm_device
*dev
)
2157 #ifdef CONFIG_INTEL_IOMMU
2158 if (INTEL_INFO(dev
)->gen
>= 6 && intel_iommu_gfx_mapped
)
2164 static int intel_align_height(struct drm_device
*dev
, int height
, bool tiled
)
2168 tile_height
= tiled
? (IS_GEN2(dev
) ? 16 : 8) : 1;
2169 return ALIGN(height
, tile_height
);
2173 intel_pin_and_fence_fb_obj(struct drm_device
*dev
,
2174 struct drm_i915_gem_object
*obj
,
2175 struct intel_engine_cs
*pipelined
)
2177 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2181 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
2183 switch (obj
->tiling_mode
) {
2184 case I915_TILING_NONE
:
2185 if (IS_BROADWATER(dev
) || IS_CRESTLINE(dev
))
2186 alignment
= 128 * 1024;
2187 else if (INTEL_INFO(dev
)->gen
>= 4)
2188 alignment
= 4 * 1024;
2190 alignment
= 64 * 1024;
2193 /* pin() will align the object as required by fence */
2197 WARN(1, "Y tiled bo slipped through, driver bug!\n");
2203 /* Note that the w/a also requires 64 PTE of padding following the
2204 * bo. We currently fill all unused PTE with the shadow page and so
2205 * we should always have valid PTE following the scanout preventing
2208 if (need_vtd_wa(dev
) && alignment
< 256 * 1024)
2209 alignment
= 256 * 1024;
2212 * Global gtt pte registers are special registers which actually forward
2213 * writes to a chunk of system memory. Which means that there is no risk
2214 * that the register values disappear as soon as we call
2215 * intel_runtime_pm_put(), so it is correct to wrap only the
2216 * pin/unpin/fence and not more.
2218 intel_runtime_pm_get(dev_priv
);
2220 dev_priv
->mm
.interruptible
= false;
2221 ret
= i915_gem_object_pin_to_display_plane(obj
, alignment
, pipelined
);
2223 goto err_interruptible
;
2225 /* Install a fence for tiled scan-out. Pre-i965 always needs a
2226 * fence, whereas 965+ only requires a fence if using
2227 * framebuffer compression. For simplicity, we always install
2228 * a fence as the cost is not that onerous.
2230 ret
= i915_gem_object_get_fence(obj
);
2234 i915_gem_object_pin_fence(obj
);
2236 dev_priv
->mm
.interruptible
= true;
2237 intel_runtime_pm_put(dev_priv
);
2241 i915_gem_object_unpin_from_display_plane(obj
);
2243 dev_priv
->mm
.interruptible
= true;
2244 intel_runtime_pm_put(dev_priv
);
2248 void intel_unpin_fb_obj(struct drm_i915_gem_object
*obj
)
2250 WARN_ON(!mutex_is_locked(&obj
->base
.dev
->struct_mutex
));
2252 i915_gem_object_unpin_fence(obj
);
2253 i915_gem_object_unpin_from_display_plane(obj
);
2256 /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel
2257 * is assumed to be a power-of-two. */
2258 unsigned long intel_gen4_compute_page_offset(int *x
, int *y
,
2259 unsigned int tiling_mode
,
2263 if (tiling_mode
!= I915_TILING_NONE
) {
2264 unsigned int tile_rows
, tiles
;
2269 tiles
= *x
/ (512/cpp
);
2272 return tile_rows
* pitch
* 8 + tiles
* 4096;
2274 unsigned int offset
;
2276 offset
= *y
* pitch
+ *x
* cpp
;
2278 *x
= (offset
& 4095) / cpp
;
2279 return offset
& -4096;
2283 int intel_format_to_fourcc(int format
)
2286 case DISPPLANE_8BPP
:
2287 return DRM_FORMAT_C8
;
2288 case DISPPLANE_BGRX555
:
2289 return DRM_FORMAT_XRGB1555
;
2290 case DISPPLANE_BGRX565
:
2291 return DRM_FORMAT_RGB565
;
2293 case DISPPLANE_BGRX888
:
2294 return DRM_FORMAT_XRGB8888
;
2295 case DISPPLANE_RGBX888
:
2296 return DRM_FORMAT_XBGR8888
;
2297 case DISPPLANE_BGRX101010
:
2298 return DRM_FORMAT_XRGB2101010
;
2299 case DISPPLANE_RGBX101010
:
2300 return DRM_FORMAT_XBGR2101010
;
2304 static bool intel_alloc_plane_obj(struct intel_crtc
*crtc
,
2305 struct intel_plane_config
*plane_config
)
2307 struct drm_device
*dev
= crtc
->base
.dev
;
2308 struct drm_i915_gem_object
*obj
= NULL
;
2309 struct drm_mode_fb_cmd2 mode_cmd
= { 0 };
2310 u32 base
= plane_config
->base
;
2312 if (plane_config
->size
== 0)
2315 obj
= i915_gem_object_create_stolen_for_preallocated(dev
, base
, base
,
2316 plane_config
->size
);
2320 if (plane_config
->tiled
) {
2321 obj
->tiling_mode
= I915_TILING_X
;
2322 obj
->stride
= crtc
->base
.primary
->fb
->pitches
[0];
2325 mode_cmd
.pixel_format
= crtc
->base
.primary
->fb
->pixel_format
;
2326 mode_cmd
.width
= crtc
->base
.primary
->fb
->width
;
2327 mode_cmd
.height
= crtc
->base
.primary
->fb
->height
;
2328 mode_cmd
.pitches
[0] = crtc
->base
.primary
->fb
->pitches
[0];
2330 mutex_lock(&dev
->struct_mutex
);
2332 if (intel_framebuffer_init(dev
, to_intel_framebuffer(crtc
->base
.primary
->fb
),
2334 DRM_DEBUG_KMS("intel fb init failed\n");
2338 obj
->frontbuffer_bits
= INTEL_FRONTBUFFER_PRIMARY(crtc
->pipe
);
2339 mutex_unlock(&dev
->struct_mutex
);
2341 DRM_DEBUG_KMS("plane fb obj %p\n", obj
);
2345 drm_gem_object_unreference(&obj
->base
);
2346 mutex_unlock(&dev
->struct_mutex
);
2350 static void intel_find_plane_obj(struct intel_crtc
*intel_crtc
,
2351 struct intel_plane_config
*plane_config
)
2353 struct drm_device
*dev
= intel_crtc
->base
.dev
;
2355 struct intel_crtc
*i
;
2356 struct drm_i915_gem_object
*obj
;
2358 if (!intel_crtc
->base
.primary
->fb
)
2361 if (intel_alloc_plane_obj(intel_crtc
, plane_config
))
2364 kfree(intel_crtc
->base
.primary
->fb
);
2365 intel_crtc
->base
.primary
->fb
= NULL
;
2368 * Failed to alloc the obj, check to see if we should share
2369 * an fb with another CRTC instead
2371 for_each_crtc(dev
, c
) {
2372 i
= to_intel_crtc(c
);
2374 if (c
== &intel_crtc
->base
)
2380 obj
= intel_fb_obj(c
->primary
->fb
);
2384 if (i915_gem_obj_ggtt_offset(obj
) == plane_config
->base
) {
2385 drm_framebuffer_reference(c
->primary
->fb
);
2386 intel_crtc
->base
.primary
->fb
= c
->primary
->fb
;
2387 obj
->frontbuffer_bits
|= INTEL_FRONTBUFFER_PRIMARY(intel_crtc
->pipe
);
2393 static void i9xx_update_primary_plane(struct drm_crtc
*crtc
,
2394 struct drm_framebuffer
*fb
,
2397 struct drm_device
*dev
= crtc
->dev
;
2398 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2399 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2400 struct drm_i915_gem_object
*obj
;
2401 int plane
= intel_crtc
->plane
;
2402 unsigned long linear_offset
;
2404 u32 reg
= DSPCNTR(plane
);
2407 if (!intel_crtc
->primary_enabled
) {
2409 if (INTEL_INFO(dev
)->gen
>= 4)
2410 I915_WRITE(DSPSURF(plane
), 0);
2412 I915_WRITE(DSPADDR(plane
), 0);
2417 obj
= intel_fb_obj(fb
);
2418 if (WARN_ON(obj
== NULL
))
2421 pixel_size
= drm_format_plane_cpp(fb
->pixel_format
, 0);
2423 dspcntr
= DISPPLANE_GAMMA_ENABLE
;
2425 dspcntr
|= DISPLAY_PLANE_ENABLE
;
2427 if (INTEL_INFO(dev
)->gen
< 4) {
2428 if (intel_crtc
->pipe
== PIPE_B
)
2429 dspcntr
|= DISPPLANE_SEL_PIPE_B
;
2431 /* pipesrc and dspsize control the size that is scaled from,
2432 * which should always be the user's requested size.
2434 I915_WRITE(DSPSIZE(plane
),
2435 ((intel_crtc
->config
.pipe_src_h
- 1) << 16) |
2436 (intel_crtc
->config
.pipe_src_w
- 1));
2437 I915_WRITE(DSPPOS(plane
), 0);
2440 switch (fb
->pixel_format
) {
2442 dspcntr
|= DISPPLANE_8BPP
;
2444 case DRM_FORMAT_XRGB1555
:
2445 case DRM_FORMAT_ARGB1555
:
2446 dspcntr
|= DISPPLANE_BGRX555
;
2448 case DRM_FORMAT_RGB565
:
2449 dspcntr
|= DISPPLANE_BGRX565
;
2451 case DRM_FORMAT_XRGB8888
:
2452 case DRM_FORMAT_ARGB8888
:
2453 dspcntr
|= DISPPLANE_BGRX888
;
2455 case DRM_FORMAT_XBGR8888
:
2456 case DRM_FORMAT_ABGR8888
:
2457 dspcntr
|= DISPPLANE_RGBX888
;
2459 case DRM_FORMAT_XRGB2101010
:
2460 case DRM_FORMAT_ARGB2101010
:
2461 dspcntr
|= DISPPLANE_BGRX101010
;
2463 case DRM_FORMAT_XBGR2101010
:
2464 case DRM_FORMAT_ABGR2101010
:
2465 dspcntr
|= DISPPLANE_RGBX101010
;
2471 if (INTEL_INFO(dev
)->gen
>= 4 &&
2472 obj
->tiling_mode
!= I915_TILING_NONE
)
2473 dspcntr
|= DISPPLANE_TILED
;
2476 dspcntr
|= DISPPLANE_TRICKLE_FEED_DISABLE
;
2478 linear_offset
= y
* fb
->pitches
[0] + x
* pixel_size
;
2480 if (INTEL_INFO(dev
)->gen
>= 4) {
2481 intel_crtc
->dspaddr_offset
=
2482 intel_gen4_compute_page_offset(&x
, &y
, obj
->tiling_mode
,
2485 linear_offset
-= intel_crtc
->dspaddr_offset
;
2487 intel_crtc
->dspaddr_offset
= linear_offset
;
2490 if (to_intel_plane(crtc
->primary
)->rotation
== BIT(DRM_ROTATE_180
)) {
2491 dspcntr
|= DISPPLANE_ROTATE_180
;
2493 x
+= (intel_crtc
->config
.pipe_src_w
- 1);
2494 y
+= (intel_crtc
->config
.pipe_src_h
- 1);
2496 /* Finding the last pixel of the last line of the display
2497 data and adding to linear_offset*/
2499 (intel_crtc
->config
.pipe_src_h
- 1) * fb
->pitches
[0] +
2500 (intel_crtc
->config
.pipe_src_w
- 1) * pixel_size
;
2503 I915_WRITE(reg
, dspcntr
);
2505 DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
2506 i915_gem_obj_ggtt_offset(obj
), linear_offset
, x
, y
,
2508 I915_WRITE(DSPSTRIDE(plane
), fb
->pitches
[0]);
2509 if (INTEL_INFO(dev
)->gen
>= 4) {
2510 I915_WRITE(DSPSURF(plane
),
2511 i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
);
2512 I915_WRITE(DSPTILEOFF(plane
), (y
<< 16) | x
);
2513 I915_WRITE(DSPLINOFF(plane
), linear_offset
);
2515 I915_WRITE(DSPADDR(plane
), i915_gem_obj_ggtt_offset(obj
) + linear_offset
);
2519 static void ironlake_update_primary_plane(struct drm_crtc
*crtc
,
2520 struct drm_framebuffer
*fb
,
2523 struct drm_device
*dev
= crtc
->dev
;
2524 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2525 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2526 struct drm_i915_gem_object
*obj
;
2527 int plane
= intel_crtc
->plane
;
2528 unsigned long linear_offset
;
2530 u32 reg
= DSPCNTR(plane
);
2533 if (!intel_crtc
->primary_enabled
) {
2535 I915_WRITE(DSPSURF(plane
), 0);
2540 obj
= intel_fb_obj(fb
);
2541 if (WARN_ON(obj
== NULL
))
2544 pixel_size
= drm_format_plane_cpp(fb
->pixel_format
, 0);
2546 dspcntr
= DISPPLANE_GAMMA_ENABLE
;
2548 dspcntr
|= DISPLAY_PLANE_ENABLE
;
2550 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
2551 dspcntr
|= DISPPLANE_PIPE_CSC_ENABLE
;
2553 switch (fb
->pixel_format
) {
2555 dspcntr
|= DISPPLANE_8BPP
;
2557 case DRM_FORMAT_RGB565
:
2558 dspcntr
|= DISPPLANE_BGRX565
;
2560 case DRM_FORMAT_XRGB8888
:
2561 case DRM_FORMAT_ARGB8888
:
2562 dspcntr
|= DISPPLANE_BGRX888
;
2564 case DRM_FORMAT_XBGR8888
:
2565 case DRM_FORMAT_ABGR8888
:
2566 dspcntr
|= DISPPLANE_RGBX888
;
2568 case DRM_FORMAT_XRGB2101010
:
2569 case DRM_FORMAT_ARGB2101010
:
2570 dspcntr
|= DISPPLANE_BGRX101010
;
2572 case DRM_FORMAT_XBGR2101010
:
2573 case DRM_FORMAT_ABGR2101010
:
2574 dspcntr
|= DISPPLANE_RGBX101010
;
2580 if (obj
->tiling_mode
!= I915_TILING_NONE
)
2581 dspcntr
|= DISPPLANE_TILED
;
2583 if (!IS_HASWELL(dev
) && !IS_BROADWELL(dev
))
2584 dspcntr
|= DISPPLANE_TRICKLE_FEED_DISABLE
;
2586 linear_offset
= y
* fb
->pitches
[0] + x
* pixel_size
;
2587 intel_crtc
->dspaddr_offset
=
2588 intel_gen4_compute_page_offset(&x
, &y
, obj
->tiling_mode
,
2591 linear_offset
-= intel_crtc
->dspaddr_offset
;
2592 if (to_intel_plane(crtc
->primary
)->rotation
== BIT(DRM_ROTATE_180
)) {
2593 dspcntr
|= DISPPLANE_ROTATE_180
;
2595 if (!IS_HASWELL(dev
) && !IS_BROADWELL(dev
)) {
2596 x
+= (intel_crtc
->config
.pipe_src_w
- 1);
2597 y
+= (intel_crtc
->config
.pipe_src_h
- 1);
2599 /* Finding the last pixel of the last line of the display
2600 data and adding to linear_offset*/
2602 (intel_crtc
->config
.pipe_src_h
- 1) * fb
->pitches
[0] +
2603 (intel_crtc
->config
.pipe_src_w
- 1) * pixel_size
;
2607 I915_WRITE(reg
, dspcntr
);
2609 DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
2610 i915_gem_obj_ggtt_offset(obj
), linear_offset
, x
, y
,
2612 I915_WRITE(DSPSTRIDE(plane
), fb
->pitches
[0]);
2613 I915_WRITE(DSPSURF(plane
),
2614 i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
);
2615 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
2616 I915_WRITE(DSPOFFSET(plane
), (y
<< 16) | x
);
2618 I915_WRITE(DSPTILEOFF(plane
), (y
<< 16) | x
);
2619 I915_WRITE(DSPLINOFF(plane
), linear_offset
);
2624 /* Assume fb object is pinned & idle & fenced and just update base pointers */
2626 intel_pipe_set_base_atomic(struct drm_crtc
*crtc
, struct drm_framebuffer
*fb
,
2627 int x
, int y
, enum mode_set_atomic state
)
2629 struct drm_device
*dev
= crtc
->dev
;
2630 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2632 if (dev_priv
->display
.disable_fbc
)
2633 dev_priv
->display
.disable_fbc(dev
);
2634 intel_increase_pllclock(dev
, to_intel_crtc(crtc
)->pipe
);
2636 dev_priv
->display
.update_primary_plane(crtc
, fb
, x
, y
);
2641 void intel_display_handle_reset(struct drm_device
*dev
)
2643 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2644 struct drm_crtc
*crtc
;
2647 * Flips in the rings have been nuked by the reset,
2648 * so complete all pending flips so that user space
2649 * will get its events and not get stuck.
2651 * Also update the base address of all primary
2652 * planes to the the last fb to make sure we're
2653 * showing the correct fb after a reset.
2655 * Need to make two loops over the crtcs so that we
2656 * don't try to grab a crtc mutex before the
2657 * pending_flip_queue really got woken up.
2660 for_each_crtc(dev
, crtc
) {
2661 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2662 enum plane plane
= intel_crtc
->plane
;
2664 intel_prepare_page_flip(dev
, plane
);
2665 intel_finish_page_flip_plane(dev
, plane
);
2668 for_each_crtc(dev
, crtc
) {
2669 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2671 drm_modeset_lock(&crtc
->mutex
, NULL
);
2673 * FIXME: Once we have proper support for primary planes (and
2674 * disabling them without disabling the entire crtc) allow again
2675 * a NULL crtc->primary->fb.
2677 if (intel_crtc
->active
&& crtc
->primary
->fb
)
2678 dev_priv
->display
.update_primary_plane(crtc
,
2682 drm_modeset_unlock(&crtc
->mutex
);
2687 intel_finish_fb(struct drm_framebuffer
*old_fb
)
2689 struct drm_i915_gem_object
*obj
= intel_fb_obj(old_fb
);
2690 struct drm_i915_private
*dev_priv
= obj
->base
.dev
->dev_private
;
2691 bool was_interruptible
= dev_priv
->mm
.interruptible
;
2694 /* Big Hammer, we also need to ensure that any pending
2695 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
2696 * current scanout is retired before unpinning the old
2699 * This should only fail upon a hung GPU, in which case we
2700 * can safely continue.
2702 dev_priv
->mm
.interruptible
= false;
2703 ret
= i915_gem_object_finish_gpu(obj
);
2704 dev_priv
->mm
.interruptible
= was_interruptible
;
2709 static bool intel_crtc_has_pending_flip(struct drm_crtc
*crtc
)
2711 struct drm_device
*dev
= crtc
->dev
;
2712 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2713 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2716 if (i915_reset_in_progress(&dev_priv
->gpu_error
) ||
2717 intel_crtc
->reset_counter
!= atomic_read(&dev_priv
->gpu_error
.reset_counter
))
2720 spin_lock_irq(&dev
->event_lock
);
2721 pending
= to_intel_crtc(crtc
)->unpin_work
!= NULL
;
2722 spin_unlock_irq(&dev
->event_lock
);
2727 static void intel_update_pipe_size(struct intel_crtc
*crtc
)
2729 struct drm_device
*dev
= crtc
->base
.dev
;
2730 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2731 const struct drm_display_mode
*adjusted_mode
;
2737 * Update pipe size and adjust fitter if needed: the reason for this is
2738 * that in compute_mode_changes we check the native mode (not the pfit
2739 * mode) to see if we can flip rather than do a full mode set. In the
2740 * fastboot case, we'll flip, but if we don't update the pipesrc and
2741 * pfit state, we'll end up with a big fb scanned out into the wrong
2744 * To fix this properly, we need to hoist the checks up into
2745 * compute_mode_changes (or above), check the actual pfit state and
2746 * whether the platform allows pfit disable with pipe active, and only
2747 * then update the pipesrc and pfit state, even on the flip path.
2750 adjusted_mode
= &crtc
->config
.adjusted_mode
;
2752 I915_WRITE(PIPESRC(crtc
->pipe
),
2753 ((adjusted_mode
->crtc_hdisplay
- 1) << 16) |
2754 (adjusted_mode
->crtc_vdisplay
- 1));
2755 if (!crtc
->config
.pch_pfit
.enabled
&&
2756 (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
) ||
2757 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_EDP
))) {
2758 I915_WRITE(PF_CTL(crtc
->pipe
), 0);
2759 I915_WRITE(PF_WIN_POS(crtc
->pipe
), 0);
2760 I915_WRITE(PF_WIN_SZ(crtc
->pipe
), 0);
2762 crtc
->config
.pipe_src_w
= adjusted_mode
->crtc_hdisplay
;
2763 crtc
->config
.pipe_src_h
= adjusted_mode
->crtc_vdisplay
;
2767 intel_pipe_set_base(struct drm_crtc
*crtc
, int x
, int y
,
2768 struct drm_framebuffer
*fb
)
2770 struct drm_device
*dev
= crtc
->dev
;
2771 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2772 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2773 enum pipe pipe
= intel_crtc
->pipe
;
2774 struct drm_framebuffer
*old_fb
= crtc
->primary
->fb
;
2775 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
2776 struct drm_i915_gem_object
*old_obj
= intel_fb_obj(old_fb
);
2779 if (intel_crtc_has_pending_flip(crtc
)) {
2780 DRM_ERROR("pipe is still busy with an old pageflip\n");
2786 DRM_ERROR("No FB bound\n");
2790 if (intel_crtc
->plane
> INTEL_INFO(dev
)->num_pipes
) {
2791 DRM_ERROR("no plane for crtc: plane %c, num_pipes %d\n",
2792 plane_name(intel_crtc
->plane
),
2793 INTEL_INFO(dev
)->num_pipes
);
2797 mutex_lock(&dev
->struct_mutex
);
2798 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, NULL
);
2800 i915_gem_track_fb(old_obj
, obj
,
2801 INTEL_FRONTBUFFER_PRIMARY(pipe
));
2802 mutex_unlock(&dev
->struct_mutex
);
2804 DRM_ERROR("pin & fence failed\n");
2808 intel_update_pipe_size(intel_crtc
);
2810 dev_priv
->display
.update_primary_plane(crtc
, fb
, x
, y
);
2812 if (intel_crtc
->active
)
2813 intel_frontbuffer_flip(dev
, INTEL_FRONTBUFFER_PRIMARY(pipe
));
2815 crtc
->primary
->fb
= fb
;
2820 if (intel_crtc
->active
&& old_fb
!= fb
)
2821 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
2822 mutex_lock(&dev
->struct_mutex
);
2823 intel_unpin_fb_obj(old_obj
);
2824 mutex_unlock(&dev
->struct_mutex
);
2827 mutex_lock(&dev
->struct_mutex
);
2828 intel_update_fbc(dev
);
2829 mutex_unlock(&dev
->struct_mutex
);
2834 static void intel_fdi_normal_train(struct drm_crtc
*crtc
)
2836 struct drm_device
*dev
= crtc
->dev
;
2837 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2838 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2839 int pipe
= intel_crtc
->pipe
;
2842 /* enable normal train */
2843 reg
= FDI_TX_CTL(pipe
);
2844 temp
= I915_READ(reg
);
2845 if (IS_IVYBRIDGE(dev
)) {
2846 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
2847 temp
|= FDI_LINK_TRAIN_NONE_IVB
| FDI_TX_ENHANCE_FRAME_ENABLE
;
2849 temp
&= ~FDI_LINK_TRAIN_NONE
;
2850 temp
|= FDI_LINK_TRAIN_NONE
| FDI_TX_ENHANCE_FRAME_ENABLE
;
2852 I915_WRITE(reg
, temp
);
2854 reg
= FDI_RX_CTL(pipe
);
2855 temp
= I915_READ(reg
);
2856 if (HAS_PCH_CPT(dev
)) {
2857 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2858 temp
|= FDI_LINK_TRAIN_NORMAL_CPT
;
2860 temp
&= ~FDI_LINK_TRAIN_NONE
;
2861 temp
|= FDI_LINK_TRAIN_NONE
;
2863 I915_WRITE(reg
, temp
| FDI_RX_ENHANCE_FRAME_ENABLE
);
2865 /* wait one idle pattern time */
2869 /* IVB wants error correction enabled */
2870 if (IS_IVYBRIDGE(dev
))
2871 I915_WRITE(reg
, I915_READ(reg
) | FDI_FS_ERRC_ENABLE
|
2872 FDI_FE_ERRC_ENABLE
);
2875 static bool pipe_has_enabled_pch(struct intel_crtc
*crtc
)
2877 return crtc
->base
.enabled
&& crtc
->active
&&
2878 crtc
->config
.has_pch_encoder
;
2881 static void ivb_modeset_global_resources(struct drm_device
*dev
)
2883 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2884 struct intel_crtc
*pipe_B_crtc
=
2885 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[PIPE_B
]);
2886 struct intel_crtc
*pipe_C_crtc
=
2887 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[PIPE_C
]);
2891 * When everything is off disable fdi C so that we could enable fdi B
2892 * with all lanes. Note that we don't care about enabled pipes without
2893 * an enabled pch encoder.
2895 if (!pipe_has_enabled_pch(pipe_B_crtc
) &&
2896 !pipe_has_enabled_pch(pipe_C_crtc
)) {
2897 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B
)) & FDI_RX_ENABLE
);
2898 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C
)) & FDI_RX_ENABLE
);
2900 temp
= I915_READ(SOUTH_CHICKEN1
);
2901 temp
&= ~FDI_BC_BIFURCATION_SELECT
;
2902 DRM_DEBUG_KMS("disabling fdi C rx\n");
2903 I915_WRITE(SOUTH_CHICKEN1
, temp
);
2907 /* The FDI link training functions for ILK/Ibexpeak. */
2908 static void ironlake_fdi_link_train(struct drm_crtc
*crtc
)
2910 struct drm_device
*dev
= crtc
->dev
;
2911 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2912 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2913 int pipe
= intel_crtc
->pipe
;
2914 u32 reg
, temp
, tries
;
2916 /* FDI needs bits from pipe first */
2917 assert_pipe_enabled(dev_priv
, pipe
);
2919 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2921 reg
= FDI_RX_IMR(pipe
);
2922 temp
= I915_READ(reg
);
2923 temp
&= ~FDI_RX_SYMBOL_LOCK
;
2924 temp
&= ~FDI_RX_BIT_LOCK
;
2925 I915_WRITE(reg
, temp
);
2929 /* enable CPU FDI TX and PCH FDI RX */
2930 reg
= FDI_TX_CTL(pipe
);
2931 temp
= I915_READ(reg
);
2932 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
2933 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
.fdi_lanes
);
2934 temp
&= ~FDI_LINK_TRAIN_NONE
;
2935 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2936 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
2938 reg
= FDI_RX_CTL(pipe
);
2939 temp
= I915_READ(reg
);
2940 temp
&= ~FDI_LINK_TRAIN_NONE
;
2941 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2942 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
2947 /* Ironlake workaround, enable clock pointer after FDI enable*/
2948 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
2949 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
|
2950 FDI_RX_PHASE_SYNC_POINTER_EN
);
2952 reg
= FDI_RX_IIR(pipe
);
2953 for (tries
= 0; tries
< 5; tries
++) {
2954 temp
= I915_READ(reg
);
2955 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2957 if ((temp
& FDI_RX_BIT_LOCK
)) {
2958 DRM_DEBUG_KMS("FDI train 1 done.\n");
2959 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
2964 DRM_ERROR("FDI train 1 fail!\n");
2967 reg
= FDI_TX_CTL(pipe
);
2968 temp
= I915_READ(reg
);
2969 temp
&= ~FDI_LINK_TRAIN_NONE
;
2970 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2971 I915_WRITE(reg
, temp
);
2973 reg
= FDI_RX_CTL(pipe
);
2974 temp
= I915_READ(reg
);
2975 temp
&= ~FDI_LINK_TRAIN_NONE
;
2976 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2977 I915_WRITE(reg
, temp
);
2982 reg
= FDI_RX_IIR(pipe
);
2983 for (tries
= 0; tries
< 5; tries
++) {
2984 temp
= I915_READ(reg
);
2985 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2987 if (temp
& FDI_RX_SYMBOL_LOCK
) {
2988 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
2989 DRM_DEBUG_KMS("FDI train 2 done.\n");
2994 DRM_ERROR("FDI train 2 fail!\n");
2996 DRM_DEBUG_KMS("FDI train done\n");
3000 static const int snb_b_fdi_train_param
[] = {
3001 FDI_LINK_TRAIN_400MV_0DB_SNB_B
,
3002 FDI_LINK_TRAIN_400MV_6DB_SNB_B
,
3003 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B
,
3004 FDI_LINK_TRAIN_800MV_0DB_SNB_B
,
3007 /* The FDI link training functions for SNB/Cougarpoint. */
3008 static void gen6_fdi_link_train(struct drm_crtc
*crtc
)
3010 struct drm_device
*dev
= crtc
->dev
;
3011 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3012 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3013 int pipe
= intel_crtc
->pipe
;
3014 u32 reg
, temp
, i
, retry
;
3016 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3018 reg
= FDI_RX_IMR(pipe
);
3019 temp
= I915_READ(reg
);
3020 temp
&= ~FDI_RX_SYMBOL_LOCK
;
3021 temp
&= ~FDI_RX_BIT_LOCK
;
3022 I915_WRITE(reg
, temp
);
3027 /* enable CPU FDI TX and PCH FDI RX */
3028 reg
= FDI_TX_CTL(pipe
);
3029 temp
= I915_READ(reg
);
3030 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
3031 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
.fdi_lanes
);
3032 temp
&= ~FDI_LINK_TRAIN_NONE
;
3033 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3034 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3036 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
3037 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
3039 I915_WRITE(FDI_RX_MISC(pipe
),
3040 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
3042 reg
= FDI_RX_CTL(pipe
);
3043 temp
= I915_READ(reg
);
3044 if (HAS_PCH_CPT(dev
)) {
3045 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3046 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
3048 temp
&= ~FDI_LINK_TRAIN_NONE
;
3049 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3051 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
3056 for (i
= 0; i
< 4; i
++) {
3057 reg
= FDI_TX_CTL(pipe
);
3058 temp
= I915_READ(reg
);
3059 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3060 temp
|= snb_b_fdi_train_param
[i
];
3061 I915_WRITE(reg
, temp
);
3066 for (retry
= 0; retry
< 5; retry
++) {
3067 reg
= FDI_RX_IIR(pipe
);
3068 temp
= I915_READ(reg
);
3069 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3070 if (temp
& FDI_RX_BIT_LOCK
) {
3071 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
3072 DRM_DEBUG_KMS("FDI train 1 done.\n");
3081 DRM_ERROR("FDI train 1 fail!\n");
3084 reg
= FDI_TX_CTL(pipe
);
3085 temp
= I915_READ(reg
);
3086 temp
&= ~FDI_LINK_TRAIN_NONE
;
3087 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3089 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3091 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
3093 I915_WRITE(reg
, temp
);
3095 reg
= FDI_RX_CTL(pipe
);
3096 temp
= I915_READ(reg
);
3097 if (HAS_PCH_CPT(dev
)) {
3098 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3099 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
3101 temp
&= ~FDI_LINK_TRAIN_NONE
;
3102 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3104 I915_WRITE(reg
, temp
);
3109 for (i
= 0; i
< 4; i
++) {
3110 reg
= FDI_TX_CTL(pipe
);
3111 temp
= I915_READ(reg
);
3112 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3113 temp
|= snb_b_fdi_train_param
[i
];
3114 I915_WRITE(reg
, temp
);
3119 for (retry
= 0; retry
< 5; retry
++) {
3120 reg
= FDI_RX_IIR(pipe
);
3121 temp
= I915_READ(reg
);
3122 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3123 if (temp
& FDI_RX_SYMBOL_LOCK
) {
3124 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3125 DRM_DEBUG_KMS("FDI train 2 done.\n");
3134 DRM_ERROR("FDI train 2 fail!\n");
3136 DRM_DEBUG_KMS("FDI train done.\n");
3139 /* Manual link training for Ivy Bridge A0 parts */
3140 static void ivb_manual_fdi_link_train(struct drm_crtc
*crtc
)
3142 struct drm_device
*dev
= crtc
->dev
;
3143 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3144 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3145 int pipe
= intel_crtc
->pipe
;
3146 u32 reg
, temp
, i
, j
;
3148 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3150 reg
= FDI_RX_IMR(pipe
);
3151 temp
= I915_READ(reg
);
3152 temp
&= ~FDI_RX_SYMBOL_LOCK
;
3153 temp
&= ~FDI_RX_BIT_LOCK
;
3154 I915_WRITE(reg
, temp
);
3159 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
3160 I915_READ(FDI_RX_IIR(pipe
)));
3162 /* Try each vswing and preemphasis setting twice before moving on */
3163 for (j
= 0; j
< ARRAY_SIZE(snb_b_fdi_train_param
) * 2; j
++) {
3164 /* disable first in case we need to retry */
3165 reg
= FDI_TX_CTL(pipe
);
3166 temp
= I915_READ(reg
);
3167 temp
&= ~(FDI_LINK_TRAIN_AUTO
| FDI_LINK_TRAIN_NONE_IVB
);
3168 temp
&= ~FDI_TX_ENABLE
;
3169 I915_WRITE(reg
, temp
);
3171 reg
= FDI_RX_CTL(pipe
);
3172 temp
= I915_READ(reg
);
3173 temp
&= ~FDI_LINK_TRAIN_AUTO
;
3174 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3175 temp
&= ~FDI_RX_ENABLE
;
3176 I915_WRITE(reg
, temp
);
3178 /* enable CPU FDI TX and PCH FDI RX */
3179 reg
= FDI_TX_CTL(pipe
);
3180 temp
= I915_READ(reg
);
3181 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
3182 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
.fdi_lanes
);
3183 temp
|= FDI_LINK_TRAIN_PATTERN_1_IVB
;
3184 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3185 temp
|= snb_b_fdi_train_param
[j
/2];
3186 temp
|= FDI_COMPOSITE_SYNC
;
3187 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
3189 I915_WRITE(FDI_RX_MISC(pipe
),
3190 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
3192 reg
= FDI_RX_CTL(pipe
);
3193 temp
= I915_READ(reg
);
3194 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
3195 temp
|= FDI_COMPOSITE_SYNC
;
3196 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
3199 udelay(1); /* should be 0.5us */
3201 for (i
= 0; i
< 4; i
++) {
3202 reg
= FDI_RX_IIR(pipe
);
3203 temp
= I915_READ(reg
);
3204 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3206 if (temp
& FDI_RX_BIT_LOCK
||
3207 (I915_READ(reg
) & FDI_RX_BIT_LOCK
)) {
3208 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
3209 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n",
3213 udelay(1); /* should be 0.5us */
3216 DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j
/ 2);
3221 reg
= FDI_TX_CTL(pipe
);
3222 temp
= I915_READ(reg
);
3223 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
3224 temp
|= FDI_LINK_TRAIN_PATTERN_2_IVB
;
3225 I915_WRITE(reg
, temp
);
3227 reg
= FDI_RX_CTL(pipe
);
3228 temp
= I915_READ(reg
);
3229 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3230 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
3231 I915_WRITE(reg
, temp
);
3234 udelay(2); /* should be 1.5us */
3236 for (i
= 0; i
< 4; i
++) {
3237 reg
= FDI_RX_IIR(pipe
);
3238 temp
= I915_READ(reg
);
3239 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3241 if (temp
& FDI_RX_SYMBOL_LOCK
||
3242 (I915_READ(reg
) & FDI_RX_SYMBOL_LOCK
)) {
3243 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3244 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n",
3248 udelay(2); /* should be 1.5us */
3251 DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j
/ 2);
3255 DRM_DEBUG_KMS("FDI train done.\n");
3258 static void ironlake_fdi_pll_enable(struct intel_crtc
*intel_crtc
)
3260 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3261 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3262 int pipe
= intel_crtc
->pipe
;
3266 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
3267 reg
= FDI_RX_CTL(pipe
);
3268 temp
= I915_READ(reg
);
3269 temp
&= ~(FDI_DP_PORT_WIDTH_MASK
| (0x7 << 16));
3270 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
.fdi_lanes
);
3271 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
3272 I915_WRITE(reg
, temp
| FDI_RX_PLL_ENABLE
);
3277 /* Switch from Rawclk to PCDclk */
3278 temp
= I915_READ(reg
);
3279 I915_WRITE(reg
, temp
| FDI_PCDCLK
);
3284 /* Enable CPU FDI TX PLL, always on for Ironlake */
3285 reg
= FDI_TX_CTL(pipe
);
3286 temp
= I915_READ(reg
);
3287 if ((temp
& FDI_TX_PLL_ENABLE
) == 0) {
3288 I915_WRITE(reg
, temp
| FDI_TX_PLL_ENABLE
);
3295 static void ironlake_fdi_pll_disable(struct intel_crtc
*intel_crtc
)
3297 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3298 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3299 int pipe
= intel_crtc
->pipe
;
3302 /* Switch from PCDclk to Rawclk */
3303 reg
= FDI_RX_CTL(pipe
);
3304 temp
= I915_READ(reg
);
3305 I915_WRITE(reg
, temp
& ~FDI_PCDCLK
);
3307 /* Disable CPU FDI TX PLL */
3308 reg
= FDI_TX_CTL(pipe
);
3309 temp
= I915_READ(reg
);
3310 I915_WRITE(reg
, temp
& ~FDI_TX_PLL_ENABLE
);
3315 reg
= FDI_RX_CTL(pipe
);
3316 temp
= I915_READ(reg
);
3317 I915_WRITE(reg
, temp
& ~FDI_RX_PLL_ENABLE
);
3319 /* Wait for the clocks to turn off. */
3324 static void ironlake_fdi_disable(struct drm_crtc
*crtc
)
3326 struct drm_device
*dev
= crtc
->dev
;
3327 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3328 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3329 int pipe
= intel_crtc
->pipe
;
3332 /* disable CPU FDI tx and PCH FDI rx */
3333 reg
= FDI_TX_CTL(pipe
);
3334 temp
= I915_READ(reg
);
3335 I915_WRITE(reg
, temp
& ~FDI_TX_ENABLE
);
3338 reg
= FDI_RX_CTL(pipe
);
3339 temp
= I915_READ(reg
);
3340 temp
&= ~(0x7 << 16);
3341 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
3342 I915_WRITE(reg
, temp
& ~FDI_RX_ENABLE
);
3347 /* Ironlake workaround, disable clock pointer after downing FDI */
3348 if (HAS_PCH_IBX(dev
))
3349 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
3351 /* still set train pattern 1 */
3352 reg
= FDI_TX_CTL(pipe
);
3353 temp
= I915_READ(reg
);
3354 temp
&= ~FDI_LINK_TRAIN_NONE
;
3355 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3356 I915_WRITE(reg
, temp
);
3358 reg
= FDI_RX_CTL(pipe
);
3359 temp
= I915_READ(reg
);
3360 if (HAS_PCH_CPT(dev
)) {
3361 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3362 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
3364 temp
&= ~FDI_LINK_TRAIN_NONE
;
3365 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3367 /* BPC in FDI rx is consistent with that in PIPECONF */
3368 temp
&= ~(0x07 << 16);
3369 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
3370 I915_WRITE(reg
, temp
);
3376 bool intel_has_pending_fb_unpin(struct drm_device
*dev
)
3378 struct intel_crtc
*crtc
;
3380 /* Note that we don't need to be called with mode_config.lock here
3381 * as our list of CRTC objects is static for the lifetime of the
3382 * device and so cannot disappear as we iterate. Similarly, we can
3383 * happily treat the predicates as racy, atomic checks as userspace
3384 * cannot claim and pin a new fb without at least acquring the
3385 * struct_mutex and so serialising with us.
3387 for_each_intel_crtc(dev
, crtc
) {
3388 if (atomic_read(&crtc
->unpin_work_count
) == 0)
3391 if (crtc
->unpin_work
)
3392 intel_wait_for_vblank(dev
, crtc
->pipe
);
3400 static void page_flip_completed(struct intel_crtc
*intel_crtc
)
3402 struct drm_i915_private
*dev_priv
= to_i915(intel_crtc
->base
.dev
);
3403 struct intel_unpin_work
*work
= intel_crtc
->unpin_work
;
3405 /* ensure that the unpin work is consistent wrt ->pending. */
3407 intel_crtc
->unpin_work
= NULL
;
3410 drm_send_vblank_event(intel_crtc
->base
.dev
,
3414 drm_crtc_vblank_put(&intel_crtc
->base
);
3416 wake_up_all(&dev_priv
->pending_flip_queue
);
3417 queue_work(dev_priv
->wq
, &work
->work
);
3419 trace_i915_flip_complete(intel_crtc
->plane
,
3420 work
->pending_flip_obj
);
3423 void intel_crtc_wait_for_pending_flips(struct drm_crtc
*crtc
)
3425 struct drm_device
*dev
= crtc
->dev
;
3426 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3428 WARN_ON(waitqueue_active(&dev_priv
->pending_flip_queue
));
3429 if (WARN_ON(wait_event_timeout(dev_priv
->pending_flip_queue
,
3430 !intel_crtc_has_pending_flip(crtc
),
3432 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3434 spin_lock_irq(&dev
->event_lock
);
3435 if (intel_crtc
->unpin_work
) {
3436 WARN_ONCE(1, "Removing stuck page flip\n");
3437 page_flip_completed(intel_crtc
);
3439 spin_unlock_irq(&dev
->event_lock
);
3442 if (crtc
->primary
->fb
) {
3443 mutex_lock(&dev
->struct_mutex
);
3444 intel_finish_fb(crtc
->primary
->fb
);
3445 mutex_unlock(&dev
->struct_mutex
);
3449 /* Program iCLKIP clock to the desired frequency */
3450 static void lpt_program_iclkip(struct drm_crtc
*crtc
)
3452 struct drm_device
*dev
= crtc
->dev
;
3453 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3454 int clock
= to_intel_crtc(crtc
)->config
.adjusted_mode
.crtc_clock
;
3455 u32 divsel
, phaseinc
, auxdiv
, phasedir
= 0;
3458 mutex_lock(&dev_priv
->dpio_lock
);
3460 /* It is necessary to ungate the pixclk gate prior to programming
3461 * the divisors, and gate it back when it is done.
3463 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_GATE
);
3465 /* Disable SSCCTL */
3466 intel_sbi_write(dev_priv
, SBI_SSCCTL6
,
3467 intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
) |
3471 /* 20MHz is a corner case which is out of range for the 7-bit divisor */
3472 if (clock
== 20000) {
3477 /* The iCLK virtual clock root frequency is in MHz,
3478 * but the adjusted_mode->crtc_clock in in KHz. To get the
3479 * divisors, it is necessary to divide one by another, so we
3480 * convert the virtual clock precision to KHz here for higher
3483 u32 iclk_virtual_root_freq
= 172800 * 1000;
3484 u32 iclk_pi_range
= 64;
3485 u32 desired_divisor
, msb_divisor_value
, pi_value
;
3487 desired_divisor
= (iclk_virtual_root_freq
/ clock
);
3488 msb_divisor_value
= desired_divisor
/ iclk_pi_range
;
3489 pi_value
= desired_divisor
% iclk_pi_range
;
3492 divsel
= msb_divisor_value
- 2;
3493 phaseinc
= pi_value
;
3496 /* This should not happen with any sane values */
3497 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel
) &
3498 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
);
3499 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir
) &
3500 ~SBI_SSCDIVINTPHASE_INCVAL_MASK
);
3502 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
3509 /* Program SSCDIVINTPHASE6 */
3510 temp
= intel_sbi_read(dev_priv
, SBI_SSCDIVINTPHASE6
, SBI_ICLK
);
3511 temp
&= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
;
3512 temp
|= SBI_SSCDIVINTPHASE_DIVSEL(divsel
);
3513 temp
&= ~SBI_SSCDIVINTPHASE_INCVAL_MASK
;
3514 temp
|= SBI_SSCDIVINTPHASE_INCVAL(phaseinc
);
3515 temp
|= SBI_SSCDIVINTPHASE_DIR(phasedir
);
3516 temp
|= SBI_SSCDIVINTPHASE_PROPAGATE
;
3517 intel_sbi_write(dev_priv
, SBI_SSCDIVINTPHASE6
, temp
, SBI_ICLK
);
3519 /* Program SSCAUXDIV */
3520 temp
= intel_sbi_read(dev_priv
, SBI_SSCAUXDIV6
, SBI_ICLK
);
3521 temp
&= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
3522 temp
|= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv
);
3523 intel_sbi_write(dev_priv
, SBI_SSCAUXDIV6
, temp
, SBI_ICLK
);
3525 /* Enable modulator and associated divider */
3526 temp
= intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
);
3527 temp
&= ~SBI_SSCCTL_DISABLE
;
3528 intel_sbi_write(dev_priv
, SBI_SSCCTL6
, temp
, SBI_ICLK
);
3530 /* Wait for initialization time */
3533 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_UNGATE
);
3535 mutex_unlock(&dev_priv
->dpio_lock
);
3538 static void ironlake_pch_transcoder_set_timings(struct intel_crtc
*crtc
,
3539 enum pipe pch_transcoder
)
3541 struct drm_device
*dev
= crtc
->base
.dev
;
3542 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3543 enum transcoder cpu_transcoder
= crtc
->config
.cpu_transcoder
;
3545 I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder
),
3546 I915_READ(HTOTAL(cpu_transcoder
)));
3547 I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder
),
3548 I915_READ(HBLANK(cpu_transcoder
)));
3549 I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder
),
3550 I915_READ(HSYNC(cpu_transcoder
)));
3552 I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder
),
3553 I915_READ(VTOTAL(cpu_transcoder
)));
3554 I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder
),
3555 I915_READ(VBLANK(cpu_transcoder
)));
3556 I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder
),
3557 I915_READ(VSYNC(cpu_transcoder
)));
3558 I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder
),
3559 I915_READ(VSYNCSHIFT(cpu_transcoder
)));
3562 static void cpt_enable_fdi_bc_bifurcation(struct drm_device
*dev
)
3564 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3567 temp
= I915_READ(SOUTH_CHICKEN1
);
3568 if (temp
& FDI_BC_BIFURCATION_SELECT
)
3571 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B
)) & FDI_RX_ENABLE
);
3572 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C
)) & FDI_RX_ENABLE
);
3574 temp
|= FDI_BC_BIFURCATION_SELECT
;
3575 DRM_DEBUG_KMS("enabling fdi C rx\n");
3576 I915_WRITE(SOUTH_CHICKEN1
, temp
);
3577 POSTING_READ(SOUTH_CHICKEN1
);
3580 static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc
*intel_crtc
)
3582 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3583 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3585 switch (intel_crtc
->pipe
) {
3589 if (intel_crtc
->config
.fdi_lanes
> 2)
3590 WARN_ON(I915_READ(SOUTH_CHICKEN1
) & FDI_BC_BIFURCATION_SELECT
);
3592 cpt_enable_fdi_bc_bifurcation(dev
);
3596 cpt_enable_fdi_bc_bifurcation(dev
);
3605 * Enable PCH resources required for PCH ports:
3607 * - FDI training & RX/TX
3608 * - update transcoder timings
3609 * - DP transcoding bits
3612 static void ironlake_pch_enable(struct drm_crtc
*crtc
)
3614 struct drm_device
*dev
= crtc
->dev
;
3615 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3616 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3617 int pipe
= intel_crtc
->pipe
;
3620 assert_pch_transcoder_disabled(dev_priv
, pipe
);
3622 if (IS_IVYBRIDGE(dev
))
3623 ivybridge_update_fdi_bc_bifurcation(intel_crtc
);
3625 /* Write the TU size bits before fdi link training, so that error
3626 * detection works. */
3627 I915_WRITE(FDI_RX_TUSIZE1(pipe
),
3628 I915_READ(PIPE_DATA_M1(pipe
)) & TU_SIZE_MASK
);
3630 /* For PCH output, training FDI link */
3631 dev_priv
->display
.fdi_link_train(crtc
);
3633 /* We need to program the right clock selection before writing the pixel
3634 * mutliplier into the DPLL. */
3635 if (HAS_PCH_CPT(dev
)) {
3638 temp
= I915_READ(PCH_DPLL_SEL
);
3639 temp
|= TRANS_DPLL_ENABLE(pipe
);
3640 sel
= TRANS_DPLLB_SEL(pipe
);
3641 if (intel_crtc
->config
.shared_dpll
== DPLL_ID_PCH_PLL_B
)
3645 I915_WRITE(PCH_DPLL_SEL
, temp
);
3648 /* XXX: pch pll's can be enabled any time before we enable the PCH
3649 * transcoder, and we actually should do this to not upset any PCH
3650 * transcoder that already use the clock when we share it.
3652 * Note that enable_shared_dpll tries to do the right thing, but
3653 * get_shared_dpll unconditionally resets the pll - we need that to have
3654 * the right LVDS enable sequence. */
3655 intel_enable_shared_dpll(intel_crtc
);
3657 /* set transcoder timing, panel must allow it */
3658 assert_panel_unlocked(dev_priv
, pipe
);
3659 ironlake_pch_transcoder_set_timings(intel_crtc
, pipe
);
3661 intel_fdi_normal_train(crtc
);
3663 /* For PCH DP, enable TRANS_DP_CTL */
3664 if (HAS_PCH_CPT(dev
) &&
3665 (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
) ||
3666 intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
))) {
3667 u32 bpc
= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) >> 5;
3668 reg
= TRANS_DP_CTL(pipe
);
3669 temp
= I915_READ(reg
);
3670 temp
&= ~(TRANS_DP_PORT_SEL_MASK
|
3671 TRANS_DP_SYNC_MASK
|
3673 temp
|= (TRANS_DP_OUTPUT_ENABLE
|
3674 TRANS_DP_ENH_FRAMING
);
3675 temp
|= bpc
<< 9; /* same format but at 11:9 */
3677 if (crtc
->mode
.flags
& DRM_MODE_FLAG_PHSYNC
)
3678 temp
|= TRANS_DP_HSYNC_ACTIVE_HIGH
;
3679 if (crtc
->mode
.flags
& DRM_MODE_FLAG_PVSYNC
)
3680 temp
|= TRANS_DP_VSYNC_ACTIVE_HIGH
;
3682 switch (intel_trans_dp_port_sel(crtc
)) {
3684 temp
|= TRANS_DP_PORT_SEL_B
;
3687 temp
|= TRANS_DP_PORT_SEL_C
;
3690 temp
|= TRANS_DP_PORT_SEL_D
;
3696 I915_WRITE(reg
, temp
);
3699 ironlake_enable_pch_transcoder(dev_priv
, pipe
);
3702 static void lpt_pch_enable(struct drm_crtc
*crtc
)
3704 struct drm_device
*dev
= crtc
->dev
;
3705 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3706 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3707 enum transcoder cpu_transcoder
= intel_crtc
->config
.cpu_transcoder
;
3709 assert_pch_transcoder_disabled(dev_priv
, TRANSCODER_A
);
3711 lpt_program_iclkip(crtc
);
3713 /* Set transcoder timing. */
3714 ironlake_pch_transcoder_set_timings(intel_crtc
, PIPE_A
);
3716 lpt_enable_pch_transcoder(dev_priv
, cpu_transcoder
);
3719 void intel_put_shared_dpll(struct intel_crtc
*crtc
)
3721 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
3726 if (pll
->refcount
== 0) {
3727 WARN(1, "bad %s refcount\n", pll
->name
);
3731 if (--pll
->refcount
== 0) {
3733 WARN_ON(pll
->active
);
3736 crtc
->config
.shared_dpll
= DPLL_ID_PRIVATE
;
3739 struct intel_shared_dpll
*intel_get_shared_dpll(struct intel_crtc
*crtc
)
3741 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
3742 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
3743 enum intel_dpll_id i
;
3746 DRM_DEBUG_KMS("CRTC:%d dropping existing %s\n",
3747 crtc
->base
.base
.id
, pll
->name
);
3748 intel_put_shared_dpll(crtc
);
3751 if (HAS_PCH_IBX(dev_priv
->dev
)) {
3752 /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
3753 i
= (enum intel_dpll_id
) crtc
->pipe
;
3754 pll
= &dev_priv
->shared_dplls
[i
];
3756 DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n",
3757 crtc
->base
.base
.id
, pll
->name
);
3759 WARN_ON(pll
->refcount
);
3764 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
3765 pll
= &dev_priv
->shared_dplls
[i
];
3767 /* Only want to check enabled timings first */
3768 if (pll
->refcount
== 0)
3771 if (memcmp(&crtc
->config
.dpll_hw_state
, &pll
->hw_state
,
3772 sizeof(pll
->hw_state
)) == 0) {
3773 DRM_DEBUG_KMS("CRTC:%d sharing existing %s (refcount %d, ative %d)\n",
3775 pll
->name
, pll
->refcount
, pll
->active
);
3781 /* Ok no matching timings, maybe there's a free one? */
3782 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
3783 pll
= &dev_priv
->shared_dplls
[i
];
3784 if (pll
->refcount
== 0) {
3785 DRM_DEBUG_KMS("CRTC:%d allocated %s\n",
3786 crtc
->base
.base
.id
, pll
->name
);
3794 if (pll
->refcount
== 0)
3795 pll
->hw_state
= crtc
->config
.dpll_hw_state
;
3797 crtc
->config
.shared_dpll
= i
;
3798 DRM_DEBUG_DRIVER("using %s for pipe %c\n", pll
->name
,
3799 pipe_name(crtc
->pipe
));
3806 static void cpt_verify_modeset(struct drm_device
*dev
, int pipe
)
3808 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3809 int dslreg
= PIPEDSL(pipe
);
3812 temp
= I915_READ(dslreg
);
3814 if (wait_for(I915_READ(dslreg
) != temp
, 5)) {
3815 if (wait_for(I915_READ(dslreg
) != temp
, 5))
3816 DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe
));
3820 static void ironlake_pfit_enable(struct intel_crtc
*crtc
)
3822 struct drm_device
*dev
= crtc
->base
.dev
;
3823 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3824 int pipe
= crtc
->pipe
;
3826 if (crtc
->config
.pch_pfit
.enabled
) {
3827 /* Force use of hard-coded filter coefficients
3828 * as some pre-programmed values are broken,
3831 if (IS_IVYBRIDGE(dev
) || IS_HASWELL(dev
))
3832 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
|
3833 PF_PIPE_SEL_IVB(pipe
));
3835 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
);
3836 I915_WRITE(PF_WIN_POS(pipe
), crtc
->config
.pch_pfit
.pos
);
3837 I915_WRITE(PF_WIN_SZ(pipe
), crtc
->config
.pch_pfit
.size
);
3841 static void intel_enable_planes(struct drm_crtc
*crtc
)
3843 struct drm_device
*dev
= crtc
->dev
;
3844 enum pipe pipe
= to_intel_crtc(crtc
)->pipe
;
3845 struct drm_plane
*plane
;
3846 struct intel_plane
*intel_plane
;
3848 drm_for_each_legacy_plane(plane
, &dev
->mode_config
.plane_list
) {
3849 intel_plane
= to_intel_plane(plane
);
3850 if (intel_plane
->pipe
== pipe
)
3851 intel_plane_restore(&intel_plane
->base
);
3855 static void intel_disable_planes(struct drm_crtc
*crtc
)
3857 struct drm_device
*dev
= crtc
->dev
;
3858 enum pipe pipe
= to_intel_crtc(crtc
)->pipe
;
3859 struct drm_plane
*plane
;
3860 struct intel_plane
*intel_plane
;
3862 drm_for_each_legacy_plane(plane
, &dev
->mode_config
.plane_list
) {
3863 intel_plane
= to_intel_plane(plane
);
3864 if (intel_plane
->pipe
== pipe
)
3865 intel_plane_disable(&intel_plane
->base
);
3869 void hsw_enable_ips(struct intel_crtc
*crtc
)
3871 struct drm_device
*dev
= crtc
->base
.dev
;
3872 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3874 if (!crtc
->config
.ips_enabled
)
3877 /* We can only enable IPS after we enable a plane and wait for a vblank */
3878 intel_wait_for_vblank(dev
, crtc
->pipe
);
3880 assert_plane_enabled(dev_priv
, crtc
->plane
);
3881 if (IS_BROADWELL(dev
)) {
3882 mutex_lock(&dev_priv
->rps
.hw_lock
);
3883 WARN_ON(sandybridge_pcode_write(dev_priv
, DISPLAY_IPS_CONTROL
, 0xc0000000));
3884 mutex_unlock(&dev_priv
->rps
.hw_lock
);
3885 /* Quoting Art Runyan: "its not safe to expect any particular
3886 * value in IPS_CTL bit 31 after enabling IPS through the
3887 * mailbox." Moreover, the mailbox may return a bogus state,
3888 * so we need to just enable it and continue on.
3891 I915_WRITE(IPS_CTL
, IPS_ENABLE
);
3892 /* The bit only becomes 1 in the next vblank, so this wait here
3893 * is essentially intel_wait_for_vblank. If we don't have this
3894 * and don't wait for vblanks until the end of crtc_enable, then
3895 * the HW state readout code will complain that the expected
3896 * IPS_CTL value is not the one we read. */
3897 if (wait_for(I915_READ_NOTRACE(IPS_CTL
) & IPS_ENABLE
, 50))
3898 DRM_ERROR("Timed out waiting for IPS enable\n");
3902 void hsw_disable_ips(struct intel_crtc
*crtc
)
3904 struct drm_device
*dev
= crtc
->base
.dev
;
3905 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3907 if (!crtc
->config
.ips_enabled
)
3910 assert_plane_enabled(dev_priv
, crtc
->plane
);
3911 if (IS_BROADWELL(dev
)) {
3912 mutex_lock(&dev_priv
->rps
.hw_lock
);
3913 WARN_ON(sandybridge_pcode_write(dev_priv
, DISPLAY_IPS_CONTROL
, 0));
3914 mutex_unlock(&dev_priv
->rps
.hw_lock
);
3915 /* wait for pcode to finish disabling IPS, which may take up to 42ms */
3916 if (wait_for((I915_READ(IPS_CTL
) & IPS_ENABLE
) == 0, 42))
3917 DRM_ERROR("Timed out waiting for IPS disable\n");
3919 I915_WRITE(IPS_CTL
, 0);
3920 POSTING_READ(IPS_CTL
);
3923 /* We need to wait for a vblank before we can disable the plane. */
3924 intel_wait_for_vblank(dev
, crtc
->pipe
);
3927 /** Loads the palette/gamma unit for the CRTC with the prepared values */
3928 static void intel_crtc_load_lut(struct drm_crtc
*crtc
)
3930 struct drm_device
*dev
= crtc
->dev
;
3931 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3932 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3933 enum pipe pipe
= intel_crtc
->pipe
;
3934 int palreg
= PALETTE(pipe
);
3936 bool reenable_ips
= false;
3938 /* The clocks have to be on to load the palette. */
3939 if (!crtc
->enabled
|| !intel_crtc
->active
)
3942 if (!HAS_PCH_SPLIT(dev_priv
->dev
)) {
3943 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DSI
))
3944 assert_dsi_pll_enabled(dev_priv
);
3946 assert_pll_enabled(dev_priv
, pipe
);
3949 /* use legacy palette for Ironlake */
3950 if (!HAS_GMCH_DISPLAY(dev
))
3951 palreg
= LGC_PALETTE(pipe
);
3953 /* Workaround : Do not read or write the pipe palette/gamma data while
3954 * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled.
3956 if (IS_HASWELL(dev
) && intel_crtc
->config
.ips_enabled
&&
3957 ((I915_READ(GAMMA_MODE(pipe
)) & GAMMA_MODE_MODE_MASK
) ==
3958 GAMMA_MODE_MODE_SPLIT
)) {
3959 hsw_disable_ips(intel_crtc
);
3960 reenable_ips
= true;
3963 for (i
= 0; i
< 256; i
++) {
3964 I915_WRITE(palreg
+ 4 * i
,
3965 (intel_crtc
->lut_r
[i
] << 16) |
3966 (intel_crtc
->lut_g
[i
] << 8) |
3967 intel_crtc
->lut_b
[i
]);
3971 hsw_enable_ips(intel_crtc
);
3974 static void intel_crtc_dpms_overlay(struct intel_crtc
*intel_crtc
, bool enable
)
3976 if (!enable
&& intel_crtc
->overlay
) {
3977 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3978 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3980 mutex_lock(&dev
->struct_mutex
);
3981 dev_priv
->mm
.interruptible
= false;
3982 (void) intel_overlay_switch_off(intel_crtc
->overlay
);
3983 dev_priv
->mm
.interruptible
= true;
3984 mutex_unlock(&dev
->struct_mutex
);
3987 /* Let userspace switch the overlay on again. In most cases userspace
3988 * has to recompute where to put it anyway.
3992 static void intel_crtc_enable_planes(struct drm_crtc
*crtc
)
3994 struct drm_device
*dev
= crtc
->dev
;
3995 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3996 int pipe
= intel_crtc
->pipe
;
3998 intel_enable_primary_hw_plane(crtc
->primary
, crtc
);
3999 intel_enable_planes(crtc
);
4000 intel_crtc_update_cursor(crtc
, true);
4001 intel_crtc_dpms_overlay(intel_crtc
, true);
4003 hsw_enable_ips(intel_crtc
);
4005 mutex_lock(&dev
->struct_mutex
);
4006 intel_update_fbc(dev
);
4007 mutex_unlock(&dev
->struct_mutex
);
4010 * FIXME: Once we grow proper nuclear flip support out of this we need
4011 * to compute the mask of flip planes precisely. For the time being
4012 * consider this a flip from a NULL plane.
4014 intel_frontbuffer_flip(dev
, INTEL_FRONTBUFFER_ALL_MASK(pipe
));
4017 static void intel_crtc_disable_planes(struct drm_crtc
*crtc
)
4019 struct drm_device
*dev
= crtc
->dev
;
4020 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4021 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4022 int pipe
= intel_crtc
->pipe
;
4023 int plane
= intel_crtc
->plane
;
4025 intel_crtc_wait_for_pending_flips(crtc
);
4027 if (dev_priv
->fbc
.plane
== plane
)
4028 intel_disable_fbc(dev
);
4030 hsw_disable_ips(intel_crtc
);
4032 intel_crtc_dpms_overlay(intel_crtc
, false);
4033 intel_crtc_update_cursor(crtc
, false);
4034 intel_disable_planes(crtc
);
4035 intel_disable_primary_hw_plane(crtc
->primary
, crtc
);
4038 * FIXME: Once we grow proper nuclear flip support out of this we need
4039 * to compute the mask of flip planes precisely. For the time being
4040 * consider this a flip to a NULL plane.
4042 intel_frontbuffer_flip(dev
, INTEL_FRONTBUFFER_ALL_MASK(pipe
));
4045 static void ironlake_crtc_enable(struct drm_crtc
*crtc
)
4047 struct drm_device
*dev
= crtc
->dev
;
4048 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4049 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4050 struct intel_encoder
*encoder
;
4051 int pipe
= intel_crtc
->pipe
;
4053 WARN_ON(!crtc
->enabled
);
4055 if (intel_crtc
->active
)
4058 if (intel_crtc
->config
.has_pch_encoder
)
4059 intel_prepare_shared_dpll(intel_crtc
);
4061 if (intel_crtc
->config
.has_dp_encoder
)
4062 intel_dp_set_m_n(intel_crtc
);
4064 intel_set_pipe_timings(intel_crtc
);
4066 if (intel_crtc
->config
.has_pch_encoder
) {
4067 intel_cpu_transcoder_set_m_n(intel_crtc
,
4068 &intel_crtc
->config
.fdi_m_n
, NULL
);
4071 ironlake_set_pipeconf(crtc
);
4073 intel_crtc
->active
= true;
4075 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, true);
4076 intel_set_pch_fifo_underrun_reporting(dev
, pipe
, true);
4078 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4079 if (encoder
->pre_enable
)
4080 encoder
->pre_enable(encoder
);
4082 if (intel_crtc
->config
.has_pch_encoder
) {
4083 /* Note: FDI PLL enabling _must_ be done before we enable the
4084 * cpu pipes, hence this is separate from all the other fdi/pch
4086 ironlake_fdi_pll_enable(intel_crtc
);
4088 assert_fdi_tx_disabled(dev_priv
, pipe
);
4089 assert_fdi_rx_disabled(dev_priv
, pipe
);
4092 ironlake_pfit_enable(intel_crtc
);
4095 * On ILK+ LUT must be loaded before the pipe is running but with
4098 intel_crtc_load_lut(crtc
);
4100 intel_update_watermarks(crtc
);
4101 intel_enable_pipe(intel_crtc
);
4103 if (intel_crtc
->config
.has_pch_encoder
)
4104 ironlake_pch_enable(crtc
);
4106 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4107 encoder
->enable(encoder
);
4109 if (HAS_PCH_CPT(dev
))
4110 cpt_verify_modeset(dev
, intel_crtc
->pipe
);
4112 assert_vblank_disabled(crtc
);
4113 drm_crtc_vblank_on(crtc
);
4115 intel_crtc_enable_planes(crtc
);
4118 /* IPS only exists on ULT machines and is tied to pipe A. */
4119 static bool hsw_crtc_supports_ips(struct intel_crtc
*crtc
)
4121 return HAS_IPS(crtc
->base
.dev
) && crtc
->pipe
== PIPE_A
;
4125 * This implements the workaround described in the "notes" section of the mode
4126 * set sequence documentation. When going from no pipes or single pipe to
4127 * multiple pipes, and planes are enabled after the pipe, we need to wait at
4128 * least 2 vblanks on the first pipe before enabling planes on the second pipe.
4130 static void haswell_mode_set_planes_workaround(struct intel_crtc
*crtc
)
4132 struct drm_device
*dev
= crtc
->base
.dev
;
4133 struct intel_crtc
*crtc_it
, *other_active_crtc
= NULL
;
4135 /* We want to get the other_active_crtc only if there's only 1 other
4137 for_each_intel_crtc(dev
, crtc_it
) {
4138 if (!crtc_it
->active
|| crtc_it
== crtc
)
4141 if (other_active_crtc
)
4144 other_active_crtc
= crtc_it
;
4146 if (!other_active_crtc
)
4149 intel_wait_for_vblank(dev
, other_active_crtc
->pipe
);
4150 intel_wait_for_vblank(dev
, other_active_crtc
->pipe
);
4153 static void haswell_crtc_enable(struct drm_crtc
*crtc
)
4155 struct drm_device
*dev
= crtc
->dev
;
4156 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4157 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4158 struct intel_encoder
*encoder
;
4159 int pipe
= intel_crtc
->pipe
;
4161 WARN_ON(!crtc
->enabled
);
4163 if (intel_crtc
->active
)
4166 if (intel_crtc_to_shared_dpll(intel_crtc
))
4167 intel_enable_shared_dpll(intel_crtc
);
4169 if (intel_crtc
->config
.has_dp_encoder
)
4170 intel_dp_set_m_n(intel_crtc
);
4172 intel_set_pipe_timings(intel_crtc
);
4174 if (intel_crtc
->config
.has_pch_encoder
) {
4175 intel_cpu_transcoder_set_m_n(intel_crtc
,
4176 &intel_crtc
->config
.fdi_m_n
, NULL
);
4179 haswell_set_pipeconf(crtc
);
4181 intel_set_pipe_csc(crtc
);
4183 intel_crtc
->active
= true;
4185 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, true);
4186 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4187 if (encoder
->pre_enable
)
4188 encoder
->pre_enable(encoder
);
4190 if (intel_crtc
->config
.has_pch_encoder
) {
4191 intel_set_pch_fifo_underrun_reporting(dev
, TRANSCODER_A
, true);
4192 dev_priv
->display
.fdi_link_train(crtc
);
4195 intel_ddi_enable_pipe_clock(intel_crtc
);
4197 ironlake_pfit_enable(intel_crtc
);
4200 * On ILK+ LUT must be loaded before the pipe is running but with
4203 intel_crtc_load_lut(crtc
);
4205 intel_ddi_set_pipe_settings(crtc
);
4206 intel_ddi_enable_transcoder_func(crtc
);
4208 intel_update_watermarks(crtc
);
4209 intel_enable_pipe(intel_crtc
);
4211 if (intel_crtc
->config
.has_pch_encoder
)
4212 lpt_pch_enable(crtc
);
4214 if (intel_crtc
->config
.dp_encoder_is_mst
)
4215 intel_ddi_set_vc_payload_alloc(crtc
, true);
4217 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
4218 encoder
->enable(encoder
);
4219 intel_opregion_notify_encoder(encoder
, true);
4222 assert_vblank_disabled(crtc
);
4223 drm_crtc_vblank_on(crtc
);
4225 /* If we change the relative order between pipe/planes enabling, we need
4226 * to change the workaround. */
4227 haswell_mode_set_planes_workaround(intel_crtc
);
4228 intel_crtc_enable_planes(crtc
);
4231 static void ironlake_pfit_disable(struct intel_crtc
*crtc
)
4233 struct drm_device
*dev
= crtc
->base
.dev
;
4234 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4235 int pipe
= crtc
->pipe
;
4237 /* To avoid upsetting the power well on haswell only disable the pfit if
4238 * it's in use. The hw state code will make sure we get this right. */
4239 if (crtc
->config
.pch_pfit
.enabled
) {
4240 I915_WRITE(PF_CTL(pipe
), 0);
4241 I915_WRITE(PF_WIN_POS(pipe
), 0);
4242 I915_WRITE(PF_WIN_SZ(pipe
), 0);
4246 static void ironlake_crtc_disable(struct drm_crtc
*crtc
)
4248 struct drm_device
*dev
= crtc
->dev
;
4249 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4250 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4251 struct intel_encoder
*encoder
;
4252 int pipe
= intel_crtc
->pipe
;
4255 if (!intel_crtc
->active
)
4258 intel_crtc_disable_planes(crtc
);
4260 drm_crtc_vblank_off(crtc
);
4261 assert_vblank_disabled(crtc
);
4263 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4264 encoder
->disable(encoder
);
4266 if (intel_crtc
->config
.has_pch_encoder
)
4267 intel_set_pch_fifo_underrun_reporting(dev
, pipe
, false);
4269 intel_disable_pipe(intel_crtc
);
4271 ironlake_pfit_disable(intel_crtc
);
4273 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4274 if (encoder
->post_disable
)
4275 encoder
->post_disable(encoder
);
4277 if (intel_crtc
->config
.has_pch_encoder
) {
4278 ironlake_fdi_disable(crtc
);
4280 ironlake_disable_pch_transcoder(dev_priv
, pipe
);
4281 intel_set_pch_fifo_underrun_reporting(dev
, pipe
, true);
4283 if (HAS_PCH_CPT(dev
)) {
4284 /* disable TRANS_DP_CTL */
4285 reg
= TRANS_DP_CTL(pipe
);
4286 temp
= I915_READ(reg
);
4287 temp
&= ~(TRANS_DP_OUTPUT_ENABLE
|
4288 TRANS_DP_PORT_SEL_MASK
);
4289 temp
|= TRANS_DP_PORT_SEL_NONE
;
4290 I915_WRITE(reg
, temp
);
4292 /* disable DPLL_SEL */
4293 temp
= I915_READ(PCH_DPLL_SEL
);
4294 temp
&= ~(TRANS_DPLL_ENABLE(pipe
) | TRANS_DPLLB_SEL(pipe
));
4295 I915_WRITE(PCH_DPLL_SEL
, temp
);
4298 /* disable PCH DPLL */
4299 intel_disable_shared_dpll(intel_crtc
);
4301 ironlake_fdi_pll_disable(intel_crtc
);
4304 intel_crtc
->active
= false;
4305 intel_update_watermarks(crtc
);
4307 mutex_lock(&dev
->struct_mutex
);
4308 intel_update_fbc(dev
);
4309 mutex_unlock(&dev
->struct_mutex
);
4312 static void haswell_crtc_disable(struct drm_crtc
*crtc
)
4314 struct drm_device
*dev
= crtc
->dev
;
4315 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4316 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4317 struct intel_encoder
*encoder
;
4318 enum transcoder cpu_transcoder
= intel_crtc
->config
.cpu_transcoder
;
4320 if (!intel_crtc
->active
)
4323 intel_crtc_disable_planes(crtc
);
4325 drm_crtc_vblank_off(crtc
);
4326 assert_vblank_disabled(crtc
);
4328 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
4329 intel_opregion_notify_encoder(encoder
, false);
4330 encoder
->disable(encoder
);
4333 if (intel_crtc
->config
.has_pch_encoder
)
4334 intel_set_pch_fifo_underrun_reporting(dev
, TRANSCODER_A
, false);
4335 intel_disable_pipe(intel_crtc
);
4337 if (intel_crtc
->config
.dp_encoder_is_mst
)
4338 intel_ddi_set_vc_payload_alloc(crtc
, false);
4340 intel_ddi_disable_transcoder_func(dev_priv
, cpu_transcoder
);
4342 ironlake_pfit_disable(intel_crtc
);
4344 intel_ddi_disable_pipe_clock(intel_crtc
);
4346 if (intel_crtc
->config
.has_pch_encoder
) {
4347 lpt_disable_pch_transcoder(dev_priv
);
4348 intel_set_pch_fifo_underrun_reporting(dev
, TRANSCODER_A
, true);
4349 intel_ddi_fdi_disable(crtc
);
4352 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4353 if (encoder
->post_disable
)
4354 encoder
->post_disable(encoder
);
4356 intel_crtc
->active
= false;
4357 intel_update_watermarks(crtc
);
4359 mutex_lock(&dev
->struct_mutex
);
4360 intel_update_fbc(dev
);
4361 mutex_unlock(&dev
->struct_mutex
);
4363 if (intel_crtc_to_shared_dpll(intel_crtc
))
4364 intel_disable_shared_dpll(intel_crtc
);
4367 static void ironlake_crtc_off(struct drm_crtc
*crtc
)
4369 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4370 intel_put_shared_dpll(intel_crtc
);
4374 static void i9xx_pfit_enable(struct intel_crtc
*crtc
)
4376 struct drm_device
*dev
= crtc
->base
.dev
;
4377 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4378 struct intel_crtc_config
*pipe_config
= &crtc
->config
;
4380 if (!crtc
->config
.gmch_pfit
.control
)
4384 * The panel fitter should only be adjusted whilst the pipe is disabled,
4385 * according to register description and PRM.
4387 WARN_ON(I915_READ(PFIT_CONTROL
) & PFIT_ENABLE
);
4388 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
4390 I915_WRITE(PFIT_PGM_RATIOS
, pipe_config
->gmch_pfit
.pgm_ratios
);
4391 I915_WRITE(PFIT_CONTROL
, pipe_config
->gmch_pfit
.control
);
4393 /* Border color in case we don't scale up to the full screen. Black by
4394 * default, change to something else for debugging. */
4395 I915_WRITE(BCLRPAT(crtc
->pipe
), 0);
4398 static enum intel_display_power_domain
port_to_power_domain(enum port port
)
4402 return POWER_DOMAIN_PORT_DDI_A_4_LANES
;
4404 return POWER_DOMAIN_PORT_DDI_B_4_LANES
;
4406 return POWER_DOMAIN_PORT_DDI_C_4_LANES
;
4408 return POWER_DOMAIN_PORT_DDI_D_4_LANES
;
4411 return POWER_DOMAIN_PORT_OTHER
;
4415 #define for_each_power_domain(domain, mask) \
4416 for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
4417 if ((1 << (domain)) & (mask))
4419 enum intel_display_power_domain
4420 intel_display_port_power_domain(struct intel_encoder
*intel_encoder
)
4422 struct drm_device
*dev
= intel_encoder
->base
.dev
;
4423 struct intel_digital_port
*intel_dig_port
;
4425 switch (intel_encoder
->type
) {
4426 case INTEL_OUTPUT_UNKNOWN
:
4427 /* Only DDI platforms should ever use this output type */
4428 WARN_ON_ONCE(!HAS_DDI(dev
));
4429 case INTEL_OUTPUT_DISPLAYPORT
:
4430 case INTEL_OUTPUT_HDMI
:
4431 case INTEL_OUTPUT_EDP
:
4432 intel_dig_port
= enc_to_dig_port(&intel_encoder
->base
);
4433 return port_to_power_domain(intel_dig_port
->port
);
4434 case INTEL_OUTPUT_DP_MST
:
4435 intel_dig_port
= enc_to_mst(&intel_encoder
->base
)->primary
;
4436 return port_to_power_domain(intel_dig_port
->port
);
4437 case INTEL_OUTPUT_ANALOG
:
4438 return POWER_DOMAIN_PORT_CRT
;
4439 case INTEL_OUTPUT_DSI
:
4440 return POWER_DOMAIN_PORT_DSI
;
4442 return POWER_DOMAIN_PORT_OTHER
;
4446 static unsigned long get_crtc_power_domains(struct drm_crtc
*crtc
)
4448 struct drm_device
*dev
= crtc
->dev
;
4449 struct intel_encoder
*intel_encoder
;
4450 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4451 enum pipe pipe
= intel_crtc
->pipe
;
4453 enum transcoder transcoder
;
4455 transcoder
= intel_pipe_to_cpu_transcoder(dev
->dev_private
, pipe
);
4457 mask
= BIT(POWER_DOMAIN_PIPE(pipe
));
4458 mask
|= BIT(POWER_DOMAIN_TRANSCODER(transcoder
));
4459 if (intel_crtc
->config
.pch_pfit
.enabled
||
4460 intel_crtc
->config
.pch_pfit
.force_thru
)
4461 mask
|= BIT(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe
));
4463 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
)
4464 mask
|= BIT(intel_display_port_power_domain(intel_encoder
));
4469 void intel_display_set_init_power(struct drm_i915_private
*dev_priv
,
4472 if (dev_priv
->power_domains
.init_power_on
== enable
)
4476 intel_display_power_get(dev_priv
, POWER_DOMAIN_INIT
);
4478 intel_display_power_put(dev_priv
, POWER_DOMAIN_INIT
);
4480 dev_priv
->power_domains
.init_power_on
= enable
;
4483 static void modeset_update_crtc_power_domains(struct drm_device
*dev
)
4485 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4486 unsigned long pipe_domains
[I915_MAX_PIPES
] = { 0, };
4487 struct intel_crtc
*crtc
;
4490 * First get all needed power domains, then put all unneeded, to avoid
4491 * any unnecessary toggling of the power wells.
4493 for_each_intel_crtc(dev
, crtc
) {
4494 enum intel_display_power_domain domain
;
4496 if (!crtc
->base
.enabled
)
4499 pipe_domains
[crtc
->pipe
] = get_crtc_power_domains(&crtc
->base
);
4501 for_each_power_domain(domain
, pipe_domains
[crtc
->pipe
])
4502 intel_display_power_get(dev_priv
, domain
);
4505 for_each_intel_crtc(dev
, crtc
) {
4506 enum intel_display_power_domain domain
;
4508 for_each_power_domain(domain
, crtc
->enabled_power_domains
)
4509 intel_display_power_put(dev_priv
, domain
);
4511 crtc
->enabled_power_domains
= pipe_domains
[crtc
->pipe
];
4514 intel_display_set_init_power(dev_priv
, false);
4517 /* returns HPLL frequency in kHz */
4518 static int valleyview_get_vco(struct drm_i915_private
*dev_priv
)
4520 int hpll_freq
, vco_freq
[] = { 800, 1600, 2000, 2400 };
4522 /* Obtain SKU information */
4523 mutex_lock(&dev_priv
->dpio_lock
);
4524 hpll_freq
= vlv_cck_read(dev_priv
, CCK_FUSE_REG
) &
4525 CCK_FUSE_HPLL_FREQ_MASK
;
4526 mutex_unlock(&dev_priv
->dpio_lock
);
4528 return vco_freq
[hpll_freq
] * 1000;
4531 static void vlv_update_cdclk(struct drm_device
*dev
)
4533 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4535 dev_priv
->vlv_cdclk_freq
= dev_priv
->display
.get_display_clock_speed(dev
);
4536 DRM_DEBUG_DRIVER("Current CD clock rate: %d kHz",
4537 dev_priv
->vlv_cdclk_freq
);
4540 * Program the gmbus_freq based on the cdclk frequency.
4541 * BSpec erroneously claims we should aim for 4MHz, but
4542 * in fact 1MHz is the correct frequency.
4544 I915_WRITE(GMBUSFREQ_VLV
, dev_priv
->vlv_cdclk_freq
);
4547 /* Adjust CDclk dividers to allow high res or save power if possible */
4548 static void valleyview_set_cdclk(struct drm_device
*dev
, int cdclk
)
4550 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4553 WARN_ON(dev_priv
->display
.get_display_clock_speed(dev
) != dev_priv
->vlv_cdclk_freq
);
4555 if (cdclk
>= 320000) /* jump to highest voltage for 400MHz too */
4557 else if (cdclk
== 266667)
4562 mutex_lock(&dev_priv
->rps
.hw_lock
);
4563 val
= vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
);
4564 val
&= ~DSPFREQGUAR_MASK
;
4565 val
|= (cmd
<< DSPFREQGUAR_SHIFT
);
4566 vlv_punit_write(dev_priv
, PUNIT_REG_DSPFREQ
, val
);
4567 if (wait_for((vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
) &
4568 DSPFREQSTAT_MASK
) == (cmd
<< DSPFREQSTAT_SHIFT
),
4570 DRM_ERROR("timed out waiting for CDclk change\n");
4572 mutex_unlock(&dev_priv
->rps
.hw_lock
);
4574 if (cdclk
== 400000) {
4577 vco
= valleyview_get_vco(dev_priv
);
4578 divider
= DIV_ROUND_CLOSEST(vco
<< 1, cdclk
) - 1;
4580 mutex_lock(&dev_priv
->dpio_lock
);
4581 /* adjust cdclk divider */
4582 val
= vlv_cck_read(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
);
4583 val
&= ~DISPLAY_FREQUENCY_VALUES
;
4585 vlv_cck_write(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
, val
);
4587 if (wait_for((vlv_cck_read(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
) &
4588 DISPLAY_FREQUENCY_STATUS
) == (divider
<< DISPLAY_FREQUENCY_STATUS_SHIFT
),
4590 DRM_ERROR("timed out waiting for CDclk change\n");
4591 mutex_unlock(&dev_priv
->dpio_lock
);
4594 mutex_lock(&dev_priv
->dpio_lock
);
4595 /* adjust self-refresh exit latency value */
4596 val
= vlv_bunit_read(dev_priv
, BUNIT_REG_BISOC
);
4600 * For high bandwidth configs, we set a higher latency in the bunit
4601 * so that the core display fetch happens in time to avoid underruns.
4603 if (cdclk
== 400000)
4604 val
|= 4500 / 250; /* 4.5 usec */
4606 val
|= 3000 / 250; /* 3.0 usec */
4607 vlv_bunit_write(dev_priv
, BUNIT_REG_BISOC
, val
);
4608 mutex_unlock(&dev_priv
->dpio_lock
);
4610 vlv_update_cdclk(dev
);
4613 static void cherryview_set_cdclk(struct drm_device
*dev
, int cdclk
)
4615 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4618 WARN_ON(dev_priv
->display
.get_display_clock_speed(dev
) != dev_priv
->vlv_cdclk_freq
);
4639 mutex_lock(&dev_priv
->rps
.hw_lock
);
4640 val
= vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
);
4641 val
&= ~DSPFREQGUAR_MASK_CHV
;
4642 val
|= (cmd
<< DSPFREQGUAR_SHIFT_CHV
);
4643 vlv_punit_write(dev_priv
, PUNIT_REG_DSPFREQ
, val
);
4644 if (wait_for((vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
) &
4645 DSPFREQSTAT_MASK_CHV
) == (cmd
<< DSPFREQSTAT_SHIFT_CHV
),
4647 DRM_ERROR("timed out waiting for CDclk change\n");
4649 mutex_unlock(&dev_priv
->rps
.hw_lock
);
4651 vlv_update_cdclk(dev
);
4654 static int valleyview_calc_cdclk(struct drm_i915_private
*dev_priv
,
4657 int vco
= valleyview_get_vco(dev_priv
);
4658 int freq_320
= (vco
<< 1) % 320000 != 0 ? 333333 : 320000;
4660 /* FIXME: Punit isn't quite ready yet */
4661 if (IS_CHERRYVIEW(dev_priv
->dev
))
4665 * Really only a few cases to deal with, as only 4 CDclks are supported:
4668 * 320/333MHz (depends on HPLL freq)
4670 * So we check to see whether we're above 90% of the lower bin and
4673 * We seem to get an unstable or solid color picture at 200MHz.
4674 * Not sure what's wrong. For now use 200MHz only when all pipes
4677 if (max_pixclk
> freq_320
*9/10)
4679 else if (max_pixclk
> 266667*9/10)
4681 else if (max_pixclk
> 0)
4687 /* compute the max pixel clock for new configuration */
4688 static int intel_mode_max_pixclk(struct drm_i915_private
*dev_priv
)
4690 struct drm_device
*dev
= dev_priv
->dev
;
4691 struct intel_crtc
*intel_crtc
;
4694 for_each_intel_crtc(dev
, intel_crtc
) {
4695 if (intel_crtc
->new_enabled
)
4696 max_pixclk
= max(max_pixclk
,
4697 intel_crtc
->new_config
->adjusted_mode
.crtc_clock
);
4703 static void valleyview_modeset_global_pipes(struct drm_device
*dev
,
4704 unsigned *prepare_pipes
)
4706 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4707 struct intel_crtc
*intel_crtc
;
4708 int max_pixclk
= intel_mode_max_pixclk(dev_priv
);
4710 if (valleyview_calc_cdclk(dev_priv
, max_pixclk
) ==
4711 dev_priv
->vlv_cdclk_freq
)
4714 /* disable/enable all currently active pipes while we change cdclk */
4715 for_each_intel_crtc(dev
, intel_crtc
)
4716 if (intel_crtc
->base
.enabled
)
4717 *prepare_pipes
|= (1 << intel_crtc
->pipe
);
4720 static void valleyview_modeset_global_resources(struct drm_device
*dev
)
4722 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4723 int max_pixclk
= intel_mode_max_pixclk(dev_priv
);
4724 int req_cdclk
= valleyview_calc_cdclk(dev_priv
, max_pixclk
);
4726 if (req_cdclk
!= dev_priv
->vlv_cdclk_freq
) {
4727 if (IS_CHERRYVIEW(dev
))
4728 cherryview_set_cdclk(dev
, req_cdclk
);
4730 valleyview_set_cdclk(dev
, req_cdclk
);
4733 modeset_update_crtc_power_domains(dev
);
4736 static void valleyview_crtc_enable(struct drm_crtc
*crtc
)
4738 struct drm_device
*dev
= crtc
->dev
;
4739 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4740 struct intel_encoder
*encoder
;
4741 int pipe
= intel_crtc
->pipe
;
4744 WARN_ON(!crtc
->enabled
);
4746 if (intel_crtc
->active
)
4749 is_dsi
= intel_pipe_has_type(crtc
, INTEL_OUTPUT_DSI
);
4752 if (IS_CHERRYVIEW(dev
))
4753 chv_prepare_pll(intel_crtc
);
4755 vlv_prepare_pll(intel_crtc
);
4758 if (intel_crtc
->config
.has_dp_encoder
)
4759 intel_dp_set_m_n(intel_crtc
);
4761 intel_set_pipe_timings(intel_crtc
);
4763 i9xx_set_pipeconf(intel_crtc
);
4765 intel_crtc
->active
= true;
4767 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, true);
4769 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4770 if (encoder
->pre_pll_enable
)
4771 encoder
->pre_pll_enable(encoder
);
4774 if (IS_CHERRYVIEW(dev
))
4775 chv_enable_pll(intel_crtc
);
4777 vlv_enable_pll(intel_crtc
);
4780 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4781 if (encoder
->pre_enable
)
4782 encoder
->pre_enable(encoder
);
4784 i9xx_pfit_enable(intel_crtc
);
4786 intel_crtc_load_lut(crtc
);
4788 intel_update_watermarks(crtc
);
4789 intel_enable_pipe(intel_crtc
);
4791 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4792 encoder
->enable(encoder
);
4794 assert_vblank_disabled(crtc
);
4795 drm_crtc_vblank_on(crtc
);
4797 intel_crtc_enable_planes(crtc
);
4799 /* Underruns don't raise interrupts, so check manually. */
4800 i9xx_check_fifo_underruns(dev
);
4803 static void i9xx_set_pll_dividers(struct intel_crtc
*crtc
)
4805 struct drm_device
*dev
= crtc
->base
.dev
;
4806 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4808 I915_WRITE(FP0(crtc
->pipe
), crtc
->config
.dpll_hw_state
.fp0
);
4809 I915_WRITE(FP1(crtc
->pipe
), crtc
->config
.dpll_hw_state
.fp1
);
4812 static void i9xx_crtc_enable(struct drm_crtc
*crtc
)
4814 struct drm_device
*dev
= crtc
->dev
;
4815 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4816 struct intel_encoder
*encoder
;
4817 int pipe
= intel_crtc
->pipe
;
4819 WARN_ON(!crtc
->enabled
);
4821 if (intel_crtc
->active
)
4824 i9xx_set_pll_dividers(intel_crtc
);
4826 if (intel_crtc
->config
.has_dp_encoder
)
4827 intel_dp_set_m_n(intel_crtc
);
4829 intel_set_pipe_timings(intel_crtc
);
4831 i9xx_set_pipeconf(intel_crtc
);
4833 intel_crtc
->active
= true;
4836 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, true);
4838 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4839 if (encoder
->pre_enable
)
4840 encoder
->pre_enable(encoder
);
4842 i9xx_enable_pll(intel_crtc
);
4844 i9xx_pfit_enable(intel_crtc
);
4846 intel_crtc_load_lut(crtc
);
4848 intel_update_watermarks(crtc
);
4849 intel_enable_pipe(intel_crtc
);
4851 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4852 encoder
->enable(encoder
);
4854 assert_vblank_disabled(crtc
);
4855 drm_crtc_vblank_on(crtc
);
4857 intel_crtc_enable_planes(crtc
);
4860 * Gen2 reports pipe underruns whenever all planes are disabled.
4861 * So don't enable underrun reporting before at least some planes
4863 * FIXME: Need to fix the logic to work when we turn off all planes
4864 * but leave the pipe running.
4867 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, true);
4869 /* Underruns don't raise interrupts, so check manually. */
4870 i9xx_check_fifo_underruns(dev
);
4873 static void i9xx_pfit_disable(struct intel_crtc
*crtc
)
4875 struct drm_device
*dev
= crtc
->base
.dev
;
4876 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4878 if (!crtc
->config
.gmch_pfit
.control
)
4881 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
4883 DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n",
4884 I915_READ(PFIT_CONTROL
));
4885 I915_WRITE(PFIT_CONTROL
, 0);
4888 static void i9xx_crtc_disable(struct drm_crtc
*crtc
)
4890 struct drm_device
*dev
= crtc
->dev
;
4891 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4892 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4893 struct intel_encoder
*encoder
;
4894 int pipe
= intel_crtc
->pipe
;
4896 if (!intel_crtc
->active
)
4900 * Gen2 reports pipe underruns whenever all planes are disabled.
4901 * So diasble underrun reporting before all the planes get disabled.
4902 * FIXME: Need to fix the logic to work when we turn off all planes
4903 * but leave the pipe running.
4906 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, false);
4909 * Vblank time updates from the shadow to live plane control register
4910 * are blocked if the memory self-refresh mode is active at that
4911 * moment. So to make sure the plane gets truly disabled, disable
4912 * first the self-refresh mode. The self-refresh enable bit in turn
4913 * will be checked/applied by the HW only at the next frame start
4914 * event which is after the vblank start event, so we need to have a
4915 * wait-for-vblank between disabling the plane and the pipe.
4917 intel_set_memory_cxsr(dev_priv
, false);
4918 intel_crtc_disable_planes(crtc
);
4921 * On gen2 planes are double buffered but the pipe isn't, so we must
4922 * wait for planes to fully turn off before disabling the pipe.
4923 * We also need to wait on all gmch platforms because of the
4924 * self-refresh mode constraint explained above.
4926 intel_wait_for_vblank(dev
, pipe
);
4928 drm_crtc_vblank_off(crtc
);
4929 assert_vblank_disabled(crtc
);
4931 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4932 encoder
->disable(encoder
);
4934 intel_disable_pipe(intel_crtc
);
4936 i9xx_pfit_disable(intel_crtc
);
4938 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4939 if (encoder
->post_disable
)
4940 encoder
->post_disable(encoder
);
4942 if (!intel_pipe_has_type(crtc
, INTEL_OUTPUT_DSI
)) {
4943 if (IS_CHERRYVIEW(dev
))
4944 chv_disable_pll(dev_priv
, pipe
);
4945 else if (IS_VALLEYVIEW(dev
))
4946 vlv_disable_pll(dev_priv
, pipe
);
4948 i9xx_disable_pll(intel_crtc
);
4952 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, false);
4954 intel_crtc
->active
= false;
4955 intel_update_watermarks(crtc
);
4957 mutex_lock(&dev
->struct_mutex
);
4958 intel_update_fbc(dev
);
4959 mutex_unlock(&dev
->struct_mutex
);
4962 static void i9xx_crtc_off(struct drm_crtc
*crtc
)
4966 static void intel_crtc_update_sarea(struct drm_crtc
*crtc
,
4969 struct drm_device
*dev
= crtc
->dev
;
4970 struct drm_i915_master_private
*master_priv
;
4971 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4972 int pipe
= intel_crtc
->pipe
;
4974 if (!dev
->primary
->master
)
4977 master_priv
= dev
->primary
->master
->driver_priv
;
4978 if (!master_priv
->sarea_priv
)
4983 master_priv
->sarea_priv
->pipeA_w
= enabled
? crtc
->mode
.hdisplay
: 0;
4984 master_priv
->sarea_priv
->pipeA_h
= enabled
? crtc
->mode
.vdisplay
: 0;
4987 master_priv
->sarea_priv
->pipeB_w
= enabled
? crtc
->mode
.hdisplay
: 0;
4988 master_priv
->sarea_priv
->pipeB_h
= enabled
? crtc
->mode
.vdisplay
: 0;
4991 DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe
));
4996 /* Master function to enable/disable CRTC and corresponding power wells */
4997 void intel_crtc_control(struct drm_crtc
*crtc
, bool enable
)
4999 struct drm_device
*dev
= crtc
->dev
;
5000 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5001 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5002 enum intel_display_power_domain domain
;
5003 unsigned long domains
;
5006 if (!intel_crtc
->active
) {
5007 domains
= get_crtc_power_domains(crtc
);
5008 for_each_power_domain(domain
, domains
)
5009 intel_display_power_get(dev_priv
, domain
);
5010 intel_crtc
->enabled_power_domains
= domains
;
5012 dev_priv
->display
.crtc_enable(crtc
);
5015 if (intel_crtc
->active
) {
5016 dev_priv
->display
.crtc_disable(crtc
);
5018 domains
= intel_crtc
->enabled_power_domains
;
5019 for_each_power_domain(domain
, domains
)
5020 intel_display_power_put(dev_priv
, domain
);
5021 intel_crtc
->enabled_power_domains
= 0;
5027 * Sets the power management mode of the pipe and plane.
5029 void intel_crtc_update_dpms(struct drm_crtc
*crtc
)
5031 struct drm_device
*dev
= crtc
->dev
;
5032 struct intel_encoder
*intel_encoder
;
5033 bool enable
= false;
5035 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
)
5036 enable
|= intel_encoder
->connectors_active
;
5038 intel_crtc_control(crtc
, enable
);
5040 intel_crtc_update_sarea(crtc
, enable
);
5043 static void intel_crtc_disable(struct drm_crtc
*crtc
)
5045 struct drm_device
*dev
= crtc
->dev
;
5046 struct drm_connector
*connector
;
5047 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5048 struct drm_i915_gem_object
*old_obj
= intel_fb_obj(crtc
->primary
->fb
);
5049 enum pipe pipe
= to_intel_crtc(crtc
)->pipe
;
5051 /* crtc should still be enabled when we disable it. */
5052 WARN_ON(!crtc
->enabled
);
5054 dev_priv
->display
.crtc_disable(crtc
);
5055 intel_crtc_update_sarea(crtc
, false);
5056 dev_priv
->display
.off(crtc
);
5058 if (crtc
->primary
->fb
) {
5059 mutex_lock(&dev
->struct_mutex
);
5060 intel_unpin_fb_obj(old_obj
);
5061 i915_gem_track_fb(old_obj
, NULL
,
5062 INTEL_FRONTBUFFER_PRIMARY(pipe
));
5063 mutex_unlock(&dev
->struct_mutex
);
5064 crtc
->primary
->fb
= NULL
;
5067 /* Update computed state. */
5068 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
5069 if (!connector
->encoder
|| !connector
->encoder
->crtc
)
5072 if (connector
->encoder
->crtc
!= crtc
)
5075 connector
->dpms
= DRM_MODE_DPMS_OFF
;
5076 to_intel_encoder(connector
->encoder
)->connectors_active
= false;
5080 void intel_encoder_destroy(struct drm_encoder
*encoder
)
5082 struct intel_encoder
*intel_encoder
= to_intel_encoder(encoder
);
5084 drm_encoder_cleanup(encoder
);
5085 kfree(intel_encoder
);
5088 /* Simple dpms helper for encoders with just one connector, no cloning and only
5089 * one kind of off state. It clamps all !ON modes to fully OFF and changes the
5090 * state of the entire output pipe. */
5091 static void intel_encoder_dpms(struct intel_encoder
*encoder
, int mode
)
5093 if (mode
== DRM_MODE_DPMS_ON
) {
5094 encoder
->connectors_active
= true;
5096 intel_crtc_update_dpms(encoder
->base
.crtc
);
5098 encoder
->connectors_active
= false;
5100 intel_crtc_update_dpms(encoder
->base
.crtc
);
5104 /* Cross check the actual hw state with our own modeset state tracking (and it's
5105 * internal consistency). */
5106 static void intel_connector_check_state(struct intel_connector
*connector
)
5108 if (connector
->get_hw_state(connector
)) {
5109 struct intel_encoder
*encoder
= connector
->encoder
;
5110 struct drm_crtc
*crtc
;
5111 bool encoder_enabled
;
5114 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
5115 connector
->base
.base
.id
,
5116 connector
->base
.name
);
5118 /* there is no real hw state for MST connectors */
5119 if (connector
->mst_port
)
5122 WARN(connector
->base
.dpms
== DRM_MODE_DPMS_OFF
,
5123 "wrong connector dpms state\n");
5124 WARN(connector
->base
.encoder
!= &encoder
->base
,
5125 "active connector not linked to encoder\n");
5128 WARN(!encoder
->connectors_active
,
5129 "encoder->connectors_active not set\n");
5131 encoder_enabled
= encoder
->get_hw_state(encoder
, &pipe
);
5132 WARN(!encoder_enabled
, "encoder not enabled\n");
5133 if (WARN_ON(!encoder
->base
.crtc
))
5136 crtc
= encoder
->base
.crtc
;
5138 WARN(!crtc
->enabled
, "crtc not enabled\n");
5139 WARN(!to_intel_crtc(crtc
)->active
, "crtc not active\n");
5140 WARN(pipe
!= to_intel_crtc(crtc
)->pipe
,
5141 "encoder active on the wrong pipe\n");
5146 /* Even simpler default implementation, if there's really no special case to
5148 void intel_connector_dpms(struct drm_connector
*connector
, int mode
)
5150 /* All the simple cases only support two dpms states. */
5151 if (mode
!= DRM_MODE_DPMS_ON
)
5152 mode
= DRM_MODE_DPMS_OFF
;
5154 if (mode
== connector
->dpms
)
5157 connector
->dpms
= mode
;
5159 /* Only need to change hw state when actually enabled */
5160 if (connector
->encoder
)
5161 intel_encoder_dpms(to_intel_encoder(connector
->encoder
), mode
);
5163 intel_modeset_check_state(connector
->dev
);
5166 /* Simple connector->get_hw_state implementation for encoders that support only
5167 * one connector and no cloning and hence the encoder state determines the state
5168 * of the connector. */
5169 bool intel_connector_get_hw_state(struct intel_connector
*connector
)
5172 struct intel_encoder
*encoder
= connector
->encoder
;
5174 return encoder
->get_hw_state(encoder
, &pipe
);
5177 static bool ironlake_check_fdi_lanes(struct drm_device
*dev
, enum pipe pipe
,
5178 struct intel_crtc_config
*pipe_config
)
5180 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5181 struct intel_crtc
*pipe_B_crtc
=
5182 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[PIPE_B
]);
5184 DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n",
5185 pipe_name(pipe
), pipe_config
->fdi_lanes
);
5186 if (pipe_config
->fdi_lanes
> 4) {
5187 DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n",
5188 pipe_name(pipe
), pipe_config
->fdi_lanes
);
5192 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
5193 if (pipe_config
->fdi_lanes
> 2) {
5194 DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n",
5195 pipe_config
->fdi_lanes
);
5202 if (INTEL_INFO(dev
)->num_pipes
== 2)
5205 /* Ivybridge 3 pipe is really complicated */
5210 if (dev_priv
->pipe_to_crtc_mapping
[PIPE_C
]->enabled
&&
5211 pipe_config
->fdi_lanes
> 2) {
5212 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
5213 pipe_name(pipe
), pipe_config
->fdi_lanes
);
5218 if (!pipe_has_enabled_pch(pipe_B_crtc
) ||
5219 pipe_B_crtc
->config
.fdi_lanes
<= 2) {
5220 if (pipe_config
->fdi_lanes
> 2) {
5221 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
5222 pipe_name(pipe
), pipe_config
->fdi_lanes
);
5226 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
5236 static int ironlake_fdi_compute_config(struct intel_crtc
*intel_crtc
,
5237 struct intel_crtc_config
*pipe_config
)
5239 struct drm_device
*dev
= intel_crtc
->base
.dev
;
5240 struct drm_display_mode
*adjusted_mode
= &pipe_config
->adjusted_mode
;
5241 int lane
, link_bw
, fdi_dotclock
;
5242 bool setup_ok
, needs_recompute
= false;
5245 /* FDI is a binary signal running at ~2.7GHz, encoding
5246 * each output octet as 10 bits. The actual frequency
5247 * is stored as a divider into a 100MHz clock, and the
5248 * mode pixel clock is stored in units of 1KHz.
5249 * Hence the bw of each lane in terms of the mode signal
5252 link_bw
= intel_fdi_link_freq(dev
) * MHz(100)/KHz(1)/10;
5254 fdi_dotclock
= adjusted_mode
->crtc_clock
;
5256 lane
= ironlake_get_lanes_required(fdi_dotclock
, link_bw
,
5257 pipe_config
->pipe_bpp
);
5259 pipe_config
->fdi_lanes
= lane
;
5261 intel_link_compute_m_n(pipe_config
->pipe_bpp
, lane
, fdi_dotclock
,
5262 link_bw
, &pipe_config
->fdi_m_n
);
5264 setup_ok
= ironlake_check_fdi_lanes(intel_crtc
->base
.dev
,
5265 intel_crtc
->pipe
, pipe_config
);
5266 if (!setup_ok
&& pipe_config
->pipe_bpp
> 6*3) {
5267 pipe_config
->pipe_bpp
-= 2*3;
5268 DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n",
5269 pipe_config
->pipe_bpp
);
5270 needs_recompute
= true;
5271 pipe_config
->bw_constrained
= true;
5276 if (needs_recompute
)
5279 return setup_ok
? 0 : -EINVAL
;
5282 static void hsw_compute_ips_config(struct intel_crtc
*crtc
,
5283 struct intel_crtc_config
*pipe_config
)
5285 pipe_config
->ips_enabled
= i915
.enable_ips
&&
5286 hsw_crtc_supports_ips(crtc
) &&
5287 pipe_config
->pipe_bpp
<= 24;
5290 static int intel_crtc_compute_config(struct intel_crtc
*crtc
,
5291 struct intel_crtc_config
*pipe_config
)
5293 struct drm_device
*dev
= crtc
->base
.dev
;
5294 struct drm_display_mode
*adjusted_mode
= &pipe_config
->adjusted_mode
;
5296 /* FIXME should check pixel clock limits on all platforms */
5297 if (INTEL_INFO(dev
)->gen
< 4) {
5298 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5300 dev_priv
->display
.get_display_clock_speed(dev
);
5303 * Enable pixel doubling when the dot clock
5304 * is > 90% of the (display) core speed.
5306 * GDG double wide on either pipe,
5307 * otherwise pipe A only.
5309 if ((crtc
->pipe
== PIPE_A
|| IS_I915G(dev
)) &&
5310 adjusted_mode
->crtc_clock
> clock_limit
* 9 / 10) {
5312 pipe_config
->double_wide
= true;
5315 if (adjusted_mode
->crtc_clock
> clock_limit
* 9 / 10)
5320 * Pipe horizontal size must be even in:
5322 * - LVDS dual channel mode
5323 * - Double wide pipe
5325 if ((intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
) &&
5326 intel_is_dual_link_lvds(dev
)) || pipe_config
->double_wide
)
5327 pipe_config
->pipe_src_w
&= ~1;
5329 /* Cantiga+ cannot handle modes with a hsync front porch of 0.
5330 * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw.
5332 if ((INTEL_INFO(dev
)->gen
> 4 || IS_G4X(dev
)) &&
5333 adjusted_mode
->hsync_start
== adjusted_mode
->hdisplay
)
5336 if ((IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) && pipe_config
->pipe_bpp
> 10*3) {
5337 pipe_config
->pipe_bpp
= 10*3; /* 12bpc is gen5+ */
5338 } else if (INTEL_INFO(dev
)->gen
<= 4 && pipe_config
->pipe_bpp
> 8*3) {
5339 /* only a 8bpc pipe, with 6bpc dither through the panel fitter
5341 pipe_config
->pipe_bpp
= 8*3;
5345 hsw_compute_ips_config(crtc
, pipe_config
);
5348 * XXX: PCH/WRPLL clock sharing is done in ->mode_set, so make sure the
5349 * old clock survives for now.
5351 if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
) || HAS_DDI(dev
))
5352 pipe_config
->shared_dpll
= crtc
->config
.shared_dpll
;
5354 if (pipe_config
->has_pch_encoder
)
5355 return ironlake_fdi_compute_config(crtc
, pipe_config
);
5360 static int valleyview_get_display_clock_speed(struct drm_device
*dev
)
5362 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5363 int vco
= valleyview_get_vco(dev_priv
);
5367 /* FIXME: Punit isn't quite ready yet */
5368 if (IS_CHERRYVIEW(dev
))
5371 mutex_lock(&dev_priv
->dpio_lock
);
5372 val
= vlv_cck_read(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
);
5373 mutex_unlock(&dev_priv
->dpio_lock
);
5375 divider
= val
& DISPLAY_FREQUENCY_VALUES
;
5377 WARN((val
& DISPLAY_FREQUENCY_STATUS
) !=
5378 (divider
<< DISPLAY_FREQUENCY_STATUS_SHIFT
),
5379 "cdclk change in progress\n");
5381 return DIV_ROUND_CLOSEST(vco
<< 1, divider
+ 1);
5384 static int i945_get_display_clock_speed(struct drm_device
*dev
)
5389 static int i915_get_display_clock_speed(struct drm_device
*dev
)
5394 static int i9xx_misc_get_display_clock_speed(struct drm_device
*dev
)
5399 static int pnv_get_display_clock_speed(struct drm_device
*dev
)
5403 pci_read_config_word(dev
->pdev
, GCFGC
, &gcfgc
);
5405 switch (gcfgc
& GC_DISPLAY_CLOCK_MASK
) {
5406 case GC_DISPLAY_CLOCK_267_MHZ_PNV
:
5408 case GC_DISPLAY_CLOCK_333_MHZ_PNV
:
5410 case GC_DISPLAY_CLOCK_444_MHZ_PNV
:
5412 case GC_DISPLAY_CLOCK_200_MHZ_PNV
:
5415 DRM_ERROR("Unknown pnv display core clock 0x%04x\n", gcfgc
);
5416 case GC_DISPLAY_CLOCK_133_MHZ_PNV
:
5418 case GC_DISPLAY_CLOCK_167_MHZ_PNV
:
5423 static int i915gm_get_display_clock_speed(struct drm_device
*dev
)
5427 pci_read_config_word(dev
->pdev
, GCFGC
, &gcfgc
);
5429 if (gcfgc
& GC_LOW_FREQUENCY_ENABLE
)
5432 switch (gcfgc
& GC_DISPLAY_CLOCK_MASK
) {
5433 case GC_DISPLAY_CLOCK_333_MHZ
:
5436 case GC_DISPLAY_CLOCK_190_200_MHZ
:
5442 static int i865_get_display_clock_speed(struct drm_device
*dev
)
5447 static int i855_get_display_clock_speed(struct drm_device
*dev
)
5450 /* Assume that the hardware is in the high speed state. This
5451 * should be the default.
5453 switch (hpllcc
& GC_CLOCK_CONTROL_MASK
) {
5454 case GC_CLOCK_133_200
:
5455 case GC_CLOCK_100_200
:
5457 case GC_CLOCK_166_250
:
5459 case GC_CLOCK_100_133
:
5463 /* Shouldn't happen */
5467 static int i830_get_display_clock_speed(struct drm_device
*dev
)
5473 intel_reduce_m_n_ratio(uint32_t *num
, uint32_t *den
)
5475 while (*num
> DATA_LINK_M_N_MASK
||
5476 *den
> DATA_LINK_M_N_MASK
) {
5482 static void compute_m_n(unsigned int m
, unsigned int n
,
5483 uint32_t *ret_m
, uint32_t *ret_n
)
5485 *ret_n
= min_t(unsigned int, roundup_pow_of_two(n
), DATA_LINK_N_MAX
);
5486 *ret_m
= div_u64((uint64_t) m
* *ret_n
, n
);
5487 intel_reduce_m_n_ratio(ret_m
, ret_n
);
5491 intel_link_compute_m_n(int bits_per_pixel
, int nlanes
,
5492 int pixel_clock
, int link_clock
,
5493 struct intel_link_m_n
*m_n
)
5497 compute_m_n(bits_per_pixel
* pixel_clock
,
5498 link_clock
* nlanes
* 8,
5499 &m_n
->gmch_m
, &m_n
->gmch_n
);
5501 compute_m_n(pixel_clock
, link_clock
,
5502 &m_n
->link_m
, &m_n
->link_n
);
5505 static inline bool intel_panel_use_ssc(struct drm_i915_private
*dev_priv
)
5507 if (i915
.panel_use_ssc
>= 0)
5508 return i915
.panel_use_ssc
!= 0;
5509 return dev_priv
->vbt
.lvds_use_ssc
5510 && !(dev_priv
->quirks
& QUIRK_LVDS_SSC_DISABLE
);
5513 static int i9xx_get_refclk(struct drm_crtc
*crtc
, int num_connectors
)
5515 struct drm_device
*dev
= crtc
->dev
;
5516 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5519 if (IS_VALLEYVIEW(dev
)) {
5521 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) &&
5522 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2) {
5523 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
5524 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk
);
5525 } else if (!IS_GEN2(dev
)) {
5534 static uint32_t pnv_dpll_compute_fp(struct dpll
*dpll
)
5536 return (1 << dpll
->n
) << 16 | dpll
->m2
;
5539 static uint32_t i9xx_dpll_compute_fp(struct dpll
*dpll
)
5541 return dpll
->n
<< 16 | dpll
->m1
<< 8 | dpll
->m2
;
5544 static void i9xx_update_pll_dividers(struct intel_crtc
*crtc
,
5545 intel_clock_t
*reduced_clock
)
5547 struct drm_device
*dev
= crtc
->base
.dev
;
5550 if (IS_PINEVIEW(dev
)) {
5551 fp
= pnv_dpll_compute_fp(&crtc
->config
.dpll
);
5553 fp2
= pnv_dpll_compute_fp(reduced_clock
);
5555 fp
= i9xx_dpll_compute_fp(&crtc
->config
.dpll
);
5557 fp2
= i9xx_dpll_compute_fp(reduced_clock
);
5560 crtc
->config
.dpll_hw_state
.fp0
= fp
;
5562 crtc
->lowfreq_avail
= false;
5563 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
) &&
5564 reduced_clock
&& i915
.powersave
) {
5565 crtc
->config
.dpll_hw_state
.fp1
= fp2
;
5566 crtc
->lowfreq_avail
= true;
5568 crtc
->config
.dpll_hw_state
.fp1
= fp
;
5572 static void vlv_pllb_recal_opamp(struct drm_i915_private
*dev_priv
, enum pipe
5578 * PLLB opamp always calibrates to max value of 0x3f, force enable it
5579 * and set it to a reasonable value instead.
5581 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW9(1));
5582 reg_val
&= 0xffffff00;
5583 reg_val
|= 0x00000030;
5584 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9(1), reg_val
);
5586 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_REF_DW13
);
5587 reg_val
&= 0x8cffffff;
5588 reg_val
= 0x8c000000;
5589 vlv_dpio_write(dev_priv
, pipe
, VLV_REF_DW13
, reg_val
);
5591 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW9(1));
5592 reg_val
&= 0xffffff00;
5593 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9(1), reg_val
);
5595 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_REF_DW13
);
5596 reg_val
&= 0x00ffffff;
5597 reg_val
|= 0xb0000000;
5598 vlv_dpio_write(dev_priv
, pipe
, VLV_REF_DW13
, reg_val
);
5601 static void intel_pch_transcoder_set_m_n(struct intel_crtc
*crtc
,
5602 struct intel_link_m_n
*m_n
)
5604 struct drm_device
*dev
= crtc
->base
.dev
;
5605 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5606 int pipe
= crtc
->pipe
;
5608 I915_WRITE(PCH_TRANS_DATA_M1(pipe
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
5609 I915_WRITE(PCH_TRANS_DATA_N1(pipe
), m_n
->gmch_n
);
5610 I915_WRITE(PCH_TRANS_LINK_M1(pipe
), m_n
->link_m
);
5611 I915_WRITE(PCH_TRANS_LINK_N1(pipe
), m_n
->link_n
);
5614 static void intel_cpu_transcoder_set_m_n(struct intel_crtc
*crtc
,
5615 struct intel_link_m_n
*m_n
,
5616 struct intel_link_m_n
*m2_n2
)
5618 struct drm_device
*dev
= crtc
->base
.dev
;
5619 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5620 int pipe
= crtc
->pipe
;
5621 enum transcoder transcoder
= crtc
->config
.cpu_transcoder
;
5623 if (INTEL_INFO(dev
)->gen
>= 5) {
5624 I915_WRITE(PIPE_DATA_M1(transcoder
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
5625 I915_WRITE(PIPE_DATA_N1(transcoder
), m_n
->gmch_n
);
5626 I915_WRITE(PIPE_LINK_M1(transcoder
), m_n
->link_m
);
5627 I915_WRITE(PIPE_LINK_N1(transcoder
), m_n
->link_n
);
5628 /* M2_N2 registers to be set only for gen < 8 (M2_N2 available
5629 * for gen < 8) and if DRRS is supported (to make sure the
5630 * registers are not unnecessarily accessed).
5632 if (m2_n2
&& INTEL_INFO(dev
)->gen
< 8 &&
5633 crtc
->config
.has_drrs
) {
5634 I915_WRITE(PIPE_DATA_M2(transcoder
),
5635 TU_SIZE(m2_n2
->tu
) | m2_n2
->gmch_m
);
5636 I915_WRITE(PIPE_DATA_N2(transcoder
), m2_n2
->gmch_n
);
5637 I915_WRITE(PIPE_LINK_M2(transcoder
), m2_n2
->link_m
);
5638 I915_WRITE(PIPE_LINK_N2(transcoder
), m2_n2
->link_n
);
5641 I915_WRITE(PIPE_DATA_M_G4X(pipe
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
5642 I915_WRITE(PIPE_DATA_N_G4X(pipe
), m_n
->gmch_n
);
5643 I915_WRITE(PIPE_LINK_M_G4X(pipe
), m_n
->link_m
);
5644 I915_WRITE(PIPE_LINK_N_G4X(pipe
), m_n
->link_n
);
5648 void intel_dp_set_m_n(struct intel_crtc
*crtc
)
5650 if (crtc
->config
.has_pch_encoder
)
5651 intel_pch_transcoder_set_m_n(crtc
, &crtc
->config
.dp_m_n
);
5653 intel_cpu_transcoder_set_m_n(crtc
, &crtc
->config
.dp_m_n
,
5654 &crtc
->config
.dp_m2_n2
);
5657 static void vlv_update_pll(struct intel_crtc
*crtc
)
5662 * Enable DPIO clock input. We should never disable the reference
5663 * clock for pipe B, since VGA hotplug / manual detection depends
5666 dpll
= DPLL_EXT_BUFFER_ENABLE_VLV
| DPLL_REFA_CLK_ENABLE_VLV
|
5667 DPLL_VGA_MODE_DIS
| DPLL_INTEGRATED_CLOCK_VLV
;
5668 /* We should never disable this, set it here for state tracking */
5669 if (crtc
->pipe
== PIPE_B
)
5670 dpll
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
5671 dpll
|= DPLL_VCO_ENABLE
;
5672 crtc
->config
.dpll_hw_state
.dpll
= dpll
;
5674 dpll_md
= (crtc
->config
.pixel_multiplier
- 1)
5675 << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
5676 crtc
->config
.dpll_hw_state
.dpll_md
= dpll_md
;
5679 static void vlv_prepare_pll(struct intel_crtc
*crtc
)
5681 struct drm_device
*dev
= crtc
->base
.dev
;
5682 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5683 int pipe
= crtc
->pipe
;
5685 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
;
5686 u32 coreclk
, reg_val
;
5688 mutex_lock(&dev_priv
->dpio_lock
);
5690 bestn
= crtc
->config
.dpll
.n
;
5691 bestm1
= crtc
->config
.dpll
.m1
;
5692 bestm2
= crtc
->config
.dpll
.m2
;
5693 bestp1
= crtc
->config
.dpll
.p1
;
5694 bestp2
= crtc
->config
.dpll
.p2
;
5696 /* See eDP HDMI DPIO driver vbios notes doc */
5698 /* PLL B needs special handling */
5700 vlv_pllb_recal_opamp(dev_priv
, pipe
);
5702 /* Set up Tx target for periodic Rcomp update */
5703 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9_BCAST
, 0x0100000f);
5705 /* Disable target IRef on PLL */
5706 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW8(pipe
));
5707 reg_val
&= 0x00ffffff;
5708 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW8(pipe
), reg_val
);
5710 /* Disable fast lock */
5711 vlv_dpio_write(dev_priv
, pipe
, VLV_CMN_DW0
, 0x610);
5713 /* Set idtafcrecal before PLL is enabled */
5714 mdiv
= ((bestm1
<< DPIO_M1DIV_SHIFT
) | (bestm2
& DPIO_M2DIV_MASK
));
5715 mdiv
|= ((bestp1
<< DPIO_P1_SHIFT
) | (bestp2
<< DPIO_P2_SHIFT
));
5716 mdiv
|= ((bestn
<< DPIO_N_SHIFT
));
5717 mdiv
|= (1 << DPIO_K_SHIFT
);
5720 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
5721 * but we don't support that).
5722 * Note: don't use the DAC post divider as it seems unstable.
5724 mdiv
|= (DPIO_POST_DIV_HDMIDP
<< DPIO_POST_DIV_SHIFT
);
5725 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW3(pipe
), mdiv
);
5727 mdiv
|= DPIO_ENABLE_CALIBRATION
;
5728 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW3(pipe
), mdiv
);
5730 /* Set HBR and RBR LPF coefficients */
5731 if (crtc
->config
.port_clock
== 162000 ||
5732 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_ANALOG
) ||
5733 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_HDMI
))
5734 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW10(pipe
),
5737 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW10(pipe
),
5740 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_EDP
) ||
5741 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DISPLAYPORT
)) {
5742 /* Use SSC source */
5744 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
5747 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
5749 } else { /* HDMI or VGA */
5750 /* Use bend source */
5752 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
5755 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
5759 coreclk
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW7(pipe
));
5760 coreclk
= (coreclk
& 0x0000ff00) | 0x01c00000;
5761 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DISPLAYPORT
) ||
5762 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_EDP
))
5763 coreclk
|= 0x01000000;
5764 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW7(pipe
), coreclk
);
5766 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW11(pipe
), 0x87871000);
5767 mutex_unlock(&dev_priv
->dpio_lock
);
5770 static void chv_update_pll(struct intel_crtc
*crtc
)
5772 crtc
->config
.dpll_hw_state
.dpll
= DPLL_SSC_REF_CLOCK_CHV
|
5773 DPLL_REFA_CLK_ENABLE_VLV
| DPLL_VGA_MODE_DIS
|
5775 if (crtc
->pipe
!= PIPE_A
)
5776 crtc
->config
.dpll_hw_state
.dpll
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
5778 crtc
->config
.dpll_hw_state
.dpll_md
=
5779 (crtc
->config
.pixel_multiplier
- 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
5782 static void chv_prepare_pll(struct intel_crtc
*crtc
)
5784 struct drm_device
*dev
= crtc
->base
.dev
;
5785 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5786 int pipe
= crtc
->pipe
;
5787 int dpll_reg
= DPLL(crtc
->pipe
);
5788 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
5789 u32 loopfilter
, intcoeff
;
5790 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
, bestm2_frac
;
5793 bestn
= crtc
->config
.dpll
.n
;
5794 bestm2_frac
= crtc
->config
.dpll
.m2
& 0x3fffff;
5795 bestm1
= crtc
->config
.dpll
.m1
;
5796 bestm2
= crtc
->config
.dpll
.m2
>> 22;
5797 bestp1
= crtc
->config
.dpll
.p1
;
5798 bestp2
= crtc
->config
.dpll
.p2
;
5801 * Enable Refclk and SSC
5803 I915_WRITE(dpll_reg
,
5804 crtc
->config
.dpll_hw_state
.dpll
& ~DPLL_VCO_ENABLE
);
5806 mutex_lock(&dev_priv
->dpio_lock
);
5808 /* p1 and p2 divider */
5809 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW13(port
),
5810 5 << DPIO_CHV_S1_DIV_SHIFT
|
5811 bestp1
<< DPIO_CHV_P1_DIV_SHIFT
|
5812 bestp2
<< DPIO_CHV_P2_DIV_SHIFT
|
5813 1 << DPIO_CHV_K_DIV_SHIFT
);
5815 /* Feedback post-divider - m2 */
5816 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW0(port
), bestm2
);
5818 /* Feedback refclk divider - n and m1 */
5819 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW1(port
),
5820 DPIO_CHV_M1_DIV_BY_2
|
5821 1 << DPIO_CHV_N_DIV_SHIFT
);
5823 /* M2 fraction division */
5824 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW2(port
), bestm2_frac
);
5826 /* M2 fraction division enable */
5827 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW3(port
),
5828 DPIO_CHV_FRAC_DIV_EN
|
5829 (2 << DPIO_CHV_FEEDFWD_GAIN_SHIFT
));
5832 refclk
= i9xx_get_refclk(&crtc
->base
, 0);
5833 loopfilter
= 5 << DPIO_CHV_PROP_COEFF_SHIFT
|
5834 2 << DPIO_CHV_GAIN_CTRL_SHIFT
;
5835 if (refclk
== 100000)
5837 else if (refclk
== 38400)
5841 loopfilter
|= intcoeff
<< DPIO_CHV_INT_COEFF_SHIFT
;
5842 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW6(port
), loopfilter
);
5845 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
),
5846 vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
)) |
5849 mutex_unlock(&dev_priv
->dpio_lock
);
5852 static void i9xx_update_pll(struct intel_crtc
*crtc
,
5853 intel_clock_t
*reduced_clock
,
5856 struct drm_device
*dev
= crtc
->base
.dev
;
5857 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5860 struct dpll
*clock
= &crtc
->config
.dpll
;
5862 i9xx_update_pll_dividers(crtc
, reduced_clock
);
5864 is_sdvo
= intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_SDVO
) ||
5865 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_HDMI
);
5867 dpll
= DPLL_VGA_MODE_DIS
;
5869 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
))
5870 dpll
|= DPLLB_MODE_LVDS
;
5872 dpll
|= DPLLB_MODE_DAC_SERIAL
;
5874 if (IS_I945G(dev
) || IS_I945GM(dev
) || IS_G33(dev
)) {
5875 dpll
|= (crtc
->config
.pixel_multiplier
- 1)
5876 << SDVO_MULTIPLIER_SHIFT_HIRES
;
5880 dpll
|= DPLL_SDVO_HIGH_SPEED
;
5882 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DISPLAYPORT
))
5883 dpll
|= DPLL_SDVO_HIGH_SPEED
;
5885 /* compute bitmask from p1 value */
5886 if (IS_PINEVIEW(dev
))
5887 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
;
5889 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
5890 if (IS_G4X(dev
) && reduced_clock
)
5891 dpll
|= (1 << (reduced_clock
->p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
5893 switch (clock
->p2
) {
5895 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
5898 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
5901 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
5904 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
5907 if (INTEL_INFO(dev
)->gen
>= 4)
5908 dpll
|= (6 << PLL_LOAD_PULSE_PHASE_SHIFT
);
5910 if (crtc
->config
.sdvo_tv_clock
)
5911 dpll
|= PLL_REF_INPUT_TVCLKINBC
;
5912 else if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
) &&
5913 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
5914 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
5916 dpll
|= PLL_REF_INPUT_DREFCLK
;
5918 dpll
|= DPLL_VCO_ENABLE
;
5919 crtc
->config
.dpll_hw_state
.dpll
= dpll
;
5921 if (INTEL_INFO(dev
)->gen
>= 4) {
5922 u32 dpll_md
= (crtc
->config
.pixel_multiplier
- 1)
5923 << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
5924 crtc
->config
.dpll_hw_state
.dpll_md
= dpll_md
;
5928 static void i8xx_update_pll(struct intel_crtc
*crtc
,
5929 intel_clock_t
*reduced_clock
,
5932 struct drm_device
*dev
= crtc
->base
.dev
;
5933 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5935 struct dpll
*clock
= &crtc
->config
.dpll
;
5937 i9xx_update_pll_dividers(crtc
, reduced_clock
);
5939 dpll
= DPLL_VGA_MODE_DIS
;
5941 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
)) {
5942 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
5945 dpll
|= PLL_P1_DIVIDE_BY_TWO
;
5947 dpll
|= (clock
->p1
- 2) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
5949 dpll
|= PLL_P2_DIVIDE_BY_4
;
5952 if (!IS_I830(dev
) && intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DVO
))
5953 dpll
|= DPLL_DVO_2X_MODE
;
5955 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
) &&
5956 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
5957 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
5959 dpll
|= PLL_REF_INPUT_DREFCLK
;
5961 dpll
|= DPLL_VCO_ENABLE
;
5962 crtc
->config
.dpll_hw_state
.dpll
= dpll
;
5965 static void intel_set_pipe_timings(struct intel_crtc
*intel_crtc
)
5967 struct drm_device
*dev
= intel_crtc
->base
.dev
;
5968 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5969 enum pipe pipe
= intel_crtc
->pipe
;
5970 enum transcoder cpu_transcoder
= intel_crtc
->config
.cpu_transcoder
;
5971 struct drm_display_mode
*adjusted_mode
=
5972 &intel_crtc
->config
.adjusted_mode
;
5973 uint32_t crtc_vtotal
, crtc_vblank_end
;
5976 /* We need to be careful not to changed the adjusted mode, for otherwise
5977 * the hw state checker will get angry at the mismatch. */
5978 crtc_vtotal
= adjusted_mode
->crtc_vtotal
;
5979 crtc_vblank_end
= adjusted_mode
->crtc_vblank_end
;
5981 if (adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
) {
5982 /* the chip adds 2 halflines automatically */
5984 crtc_vblank_end
-= 1;
5986 if (intel_pipe_has_type(&intel_crtc
->base
, INTEL_OUTPUT_SDVO
))
5987 vsyncshift
= (adjusted_mode
->crtc_htotal
- 1) / 2;
5989 vsyncshift
= adjusted_mode
->crtc_hsync_start
-
5990 adjusted_mode
->crtc_htotal
/ 2;
5992 vsyncshift
+= adjusted_mode
->crtc_htotal
;
5995 if (INTEL_INFO(dev
)->gen
> 3)
5996 I915_WRITE(VSYNCSHIFT(cpu_transcoder
), vsyncshift
);
5998 I915_WRITE(HTOTAL(cpu_transcoder
),
5999 (adjusted_mode
->crtc_hdisplay
- 1) |
6000 ((adjusted_mode
->crtc_htotal
- 1) << 16));
6001 I915_WRITE(HBLANK(cpu_transcoder
),
6002 (adjusted_mode
->crtc_hblank_start
- 1) |
6003 ((adjusted_mode
->crtc_hblank_end
- 1) << 16));
6004 I915_WRITE(HSYNC(cpu_transcoder
),
6005 (adjusted_mode
->crtc_hsync_start
- 1) |
6006 ((adjusted_mode
->crtc_hsync_end
- 1) << 16));
6008 I915_WRITE(VTOTAL(cpu_transcoder
),
6009 (adjusted_mode
->crtc_vdisplay
- 1) |
6010 ((crtc_vtotal
- 1) << 16));
6011 I915_WRITE(VBLANK(cpu_transcoder
),
6012 (adjusted_mode
->crtc_vblank_start
- 1) |
6013 ((crtc_vblank_end
- 1) << 16));
6014 I915_WRITE(VSYNC(cpu_transcoder
),
6015 (adjusted_mode
->crtc_vsync_start
- 1) |
6016 ((adjusted_mode
->crtc_vsync_end
- 1) << 16));
6018 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
6019 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
6020 * documented on the DDI_FUNC_CTL register description, EDP Input Select
6022 if (IS_HASWELL(dev
) && cpu_transcoder
== TRANSCODER_EDP
&&
6023 (pipe
== PIPE_B
|| pipe
== PIPE_C
))
6024 I915_WRITE(VTOTAL(pipe
), I915_READ(VTOTAL(cpu_transcoder
)));
6026 /* pipesrc controls the size that is scaled from, which should
6027 * always be the user's requested size.
6029 I915_WRITE(PIPESRC(pipe
),
6030 ((intel_crtc
->config
.pipe_src_w
- 1) << 16) |
6031 (intel_crtc
->config
.pipe_src_h
- 1));
6034 static void intel_get_pipe_timings(struct intel_crtc
*crtc
,
6035 struct intel_crtc_config
*pipe_config
)
6037 struct drm_device
*dev
= crtc
->base
.dev
;
6038 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6039 enum transcoder cpu_transcoder
= pipe_config
->cpu_transcoder
;
6042 tmp
= I915_READ(HTOTAL(cpu_transcoder
));
6043 pipe_config
->adjusted_mode
.crtc_hdisplay
= (tmp
& 0xffff) + 1;
6044 pipe_config
->adjusted_mode
.crtc_htotal
= ((tmp
>> 16) & 0xffff) + 1;
6045 tmp
= I915_READ(HBLANK(cpu_transcoder
));
6046 pipe_config
->adjusted_mode
.crtc_hblank_start
= (tmp
& 0xffff) + 1;
6047 pipe_config
->adjusted_mode
.crtc_hblank_end
= ((tmp
>> 16) & 0xffff) + 1;
6048 tmp
= I915_READ(HSYNC(cpu_transcoder
));
6049 pipe_config
->adjusted_mode
.crtc_hsync_start
= (tmp
& 0xffff) + 1;
6050 pipe_config
->adjusted_mode
.crtc_hsync_end
= ((tmp
>> 16) & 0xffff) + 1;
6052 tmp
= I915_READ(VTOTAL(cpu_transcoder
));
6053 pipe_config
->adjusted_mode
.crtc_vdisplay
= (tmp
& 0xffff) + 1;
6054 pipe_config
->adjusted_mode
.crtc_vtotal
= ((tmp
>> 16) & 0xffff) + 1;
6055 tmp
= I915_READ(VBLANK(cpu_transcoder
));
6056 pipe_config
->adjusted_mode
.crtc_vblank_start
= (tmp
& 0xffff) + 1;
6057 pipe_config
->adjusted_mode
.crtc_vblank_end
= ((tmp
>> 16) & 0xffff) + 1;
6058 tmp
= I915_READ(VSYNC(cpu_transcoder
));
6059 pipe_config
->adjusted_mode
.crtc_vsync_start
= (tmp
& 0xffff) + 1;
6060 pipe_config
->adjusted_mode
.crtc_vsync_end
= ((tmp
>> 16) & 0xffff) + 1;
6062 if (I915_READ(PIPECONF(cpu_transcoder
)) & PIPECONF_INTERLACE_MASK
) {
6063 pipe_config
->adjusted_mode
.flags
|= DRM_MODE_FLAG_INTERLACE
;
6064 pipe_config
->adjusted_mode
.crtc_vtotal
+= 1;
6065 pipe_config
->adjusted_mode
.crtc_vblank_end
+= 1;
6068 tmp
= I915_READ(PIPESRC(crtc
->pipe
));
6069 pipe_config
->pipe_src_h
= (tmp
& 0xffff) + 1;
6070 pipe_config
->pipe_src_w
= ((tmp
>> 16) & 0xffff) + 1;
6072 pipe_config
->requested_mode
.vdisplay
= pipe_config
->pipe_src_h
;
6073 pipe_config
->requested_mode
.hdisplay
= pipe_config
->pipe_src_w
;
6076 void intel_mode_from_pipe_config(struct drm_display_mode
*mode
,
6077 struct intel_crtc_config
*pipe_config
)
6079 mode
->hdisplay
= pipe_config
->adjusted_mode
.crtc_hdisplay
;
6080 mode
->htotal
= pipe_config
->adjusted_mode
.crtc_htotal
;
6081 mode
->hsync_start
= pipe_config
->adjusted_mode
.crtc_hsync_start
;
6082 mode
->hsync_end
= pipe_config
->adjusted_mode
.crtc_hsync_end
;
6084 mode
->vdisplay
= pipe_config
->adjusted_mode
.crtc_vdisplay
;
6085 mode
->vtotal
= pipe_config
->adjusted_mode
.crtc_vtotal
;
6086 mode
->vsync_start
= pipe_config
->adjusted_mode
.crtc_vsync_start
;
6087 mode
->vsync_end
= pipe_config
->adjusted_mode
.crtc_vsync_end
;
6089 mode
->flags
= pipe_config
->adjusted_mode
.flags
;
6091 mode
->clock
= pipe_config
->adjusted_mode
.crtc_clock
;
6092 mode
->flags
|= pipe_config
->adjusted_mode
.flags
;
6095 static void i9xx_set_pipeconf(struct intel_crtc
*intel_crtc
)
6097 struct drm_device
*dev
= intel_crtc
->base
.dev
;
6098 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6103 if ((intel_crtc
->pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
6104 (intel_crtc
->pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
6105 pipeconf
|= I915_READ(PIPECONF(intel_crtc
->pipe
)) & PIPECONF_ENABLE
;
6107 if (intel_crtc
->config
.double_wide
)
6108 pipeconf
|= PIPECONF_DOUBLE_WIDE
;
6110 /* only g4x and later have fancy bpc/dither controls */
6111 if (IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) {
6112 /* Bspec claims that we can't use dithering for 30bpp pipes. */
6113 if (intel_crtc
->config
.dither
&& intel_crtc
->config
.pipe_bpp
!= 30)
6114 pipeconf
|= PIPECONF_DITHER_EN
|
6115 PIPECONF_DITHER_TYPE_SP
;
6117 switch (intel_crtc
->config
.pipe_bpp
) {
6119 pipeconf
|= PIPECONF_6BPC
;
6122 pipeconf
|= PIPECONF_8BPC
;
6125 pipeconf
|= PIPECONF_10BPC
;
6128 /* Case prevented by intel_choose_pipe_bpp_dither. */
6133 if (HAS_PIPE_CXSR(dev
)) {
6134 if (intel_crtc
->lowfreq_avail
) {
6135 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
6136 pipeconf
|= PIPECONF_CXSR_DOWNCLOCK
;
6138 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
6142 if (intel_crtc
->config
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
) {
6143 if (INTEL_INFO(dev
)->gen
< 4 ||
6144 intel_pipe_has_type(&intel_crtc
->base
, INTEL_OUTPUT_SDVO
))
6145 pipeconf
|= PIPECONF_INTERLACE_W_FIELD_INDICATION
;
6147 pipeconf
|= PIPECONF_INTERLACE_W_SYNC_SHIFT
;
6149 pipeconf
|= PIPECONF_PROGRESSIVE
;
6151 if (IS_VALLEYVIEW(dev
) && intel_crtc
->config
.limited_color_range
)
6152 pipeconf
|= PIPECONF_COLOR_RANGE_SELECT
;
6154 I915_WRITE(PIPECONF(intel_crtc
->pipe
), pipeconf
);
6155 POSTING_READ(PIPECONF(intel_crtc
->pipe
));
6158 static int i9xx_crtc_mode_set(struct drm_crtc
*crtc
,
6160 struct drm_framebuffer
*fb
)
6162 struct drm_device
*dev
= crtc
->dev
;
6163 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6164 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6165 int refclk
, num_connectors
= 0;
6166 intel_clock_t clock
, reduced_clock
;
6167 bool ok
, has_reduced_clock
= false;
6168 bool is_lvds
= false, is_dsi
= false;
6169 struct intel_encoder
*encoder
;
6170 const intel_limit_t
*limit
;
6172 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
6173 switch (encoder
->type
) {
6174 case INTEL_OUTPUT_LVDS
:
6177 case INTEL_OUTPUT_DSI
:
6188 if (!intel_crtc
->config
.clock_set
) {
6189 refclk
= i9xx_get_refclk(crtc
, num_connectors
);
6192 * Returns a set of divisors for the desired target clock with
6193 * the given refclk, or FALSE. The returned values represent
6194 * the clock equation: reflck * (5 * (m1 + 2) + (m2 + 2)) / (n +
6197 limit
= intel_limit(crtc
, refclk
);
6198 ok
= dev_priv
->display
.find_dpll(limit
, crtc
,
6199 intel_crtc
->config
.port_clock
,
6200 refclk
, NULL
, &clock
);
6202 DRM_ERROR("Couldn't find PLL settings for mode!\n");
6206 if (is_lvds
&& dev_priv
->lvds_downclock_avail
) {
6208 * Ensure we match the reduced clock's P to the target
6209 * clock. If the clocks don't match, we can't switch
6210 * the display clock by using the FP0/FP1. In such case
6211 * we will disable the LVDS downclock feature.
6214 dev_priv
->display
.find_dpll(limit
, crtc
,
6215 dev_priv
->lvds_downclock
,
6219 /* Compat-code for transition, will disappear. */
6220 intel_crtc
->config
.dpll
.n
= clock
.n
;
6221 intel_crtc
->config
.dpll
.m1
= clock
.m1
;
6222 intel_crtc
->config
.dpll
.m2
= clock
.m2
;
6223 intel_crtc
->config
.dpll
.p1
= clock
.p1
;
6224 intel_crtc
->config
.dpll
.p2
= clock
.p2
;
6228 i8xx_update_pll(intel_crtc
,
6229 has_reduced_clock
? &reduced_clock
: NULL
,
6231 } else if (IS_CHERRYVIEW(dev
)) {
6232 chv_update_pll(intel_crtc
);
6233 } else if (IS_VALLEYVIEW(dev
)) {
6234 vlv_update_pll(intel_crtc
);
6236 i9xx_update_pll(intel_crtc
,
6237 has_reduced_clock
? &reduced_clock
: NULL
,
6244 static void i9xx_get_pfit_config(struct intel_crtc
*crtc
,
6245 struct intel_crtc_config
*pipe_config
)
6247 struct drm_device
*dev
= crtc
->base
.dev
;
6248 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6251 if (INTEL_INFO(dev
)->gen
<= 3 && (IS_I830(dev
) || !IS_MOBILE(dev
)))
6254 tmp
= I915_READ(PFIT_CONTROL
);
6255 if (!(tmp
& PFIT_ENABLE
))
6258 /* Check whether the pfit is attached to our pipe. */
6259 if (INTEL_INFO(dev
)->gen
< 4) {
6260 if (crtc
->pipe
!= PIPE_B
)
6263 if ((tmp
& PFIT_PIPE_MASK
) != (crtc
->pipe
<< PFIT_PIPE_SHIFT
))
6267 pipe_config
->gmch_pfit
.control
= tmp
;
6268 pipe_config
->gmch_pfit
.pgm_ratios
= I915_READ(PFIT_PGM_RATIOS
);
6269 if (INTEL_INFO(dev
)->gen
< 5)
6270 pipe_config
->gmch_pfit
.lvds_border_bits
=
6271 I915_READ(LVDS
) & LVDS_BORDER_ENABLE
;
6274 static void vlv_crtc_clock_get(struct intel_crtc
*crtc
,
6275 struct intel_crtc_config
*pipe_config
)
6277 struct drm_device
*dev
= crtc
->base
.dev
;
6278 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6279 int pipe
= pipe_config
->cpu_transcoder
;
6280 intel_clock_t clock
;
6282 int refclk
= 100000;
6284 /* In case of MIPI DPLL will not even be used */
6285 if (!(pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
))
6288 mutex_lock(&dev_priv
->dpio_lock
);
6289 mdiv
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW3(pipe
));
6290 mutex_unlock(&dev_priv
->dpio_lock
);
6292 clock
.m1
= (mdiv
>> DPIO_M1DIV_SHIFT
) & 7;
6293 clock
.m2
= mdiv
& DPIO_M2DIV_MASK
;
6294 clock
.n
= (mdiv
>> DPIO_N_SHIFT
) & 0xf;
6295 clock
.p1
= (mdiv
>> DPIO_P1_SHIFT
) & 7;
6296 clock
.p2
= (mdiv
>> DPIO_P2_SHIFT
) & 0x1f;
6298 vlv_clock(refclk
, &clock
);
6300 /* clock.dot is the fast clock */
6301 pipe_config
->port_clock
= clock
.dot
/ 5;
6304 static void i9xx_get_plane_config(struct intel_crtc
*crtc
,
6305 struct intel_plane_config
*plane_config
)
6307 struct drm_device
*dev
= crtc
->base
.dev
;
6308 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6309 u32 val
, base
, offset
;
6310 int pipe
= crtc
->pipe
, plane
= crtc
->plane
;
6311 int fourcc
, pixel_format
;
6314 crtc
->base
.primary
->fb
= kzalloc(sizeof(struct intel_framebuffer
), GFP_KERNEL
);
6315 if (!crtc
->base
.primary
->fb
) {
6316 DRM_DEBUG_KMS("failed to alloc fb\n");
6320 val
= I915_READ(DSPCNTR(plane
));
6322 if (INTEL_INFO(dev
)->gen
>= 4)
6323 if (val
& DISPPLANE_TILED
)
6324 plane_config
->tiled
= true;
6326 pixel_format
= val
& DISPPLANE_PIXFORMAT_MASK
;
6327 fourcc
= intel_format_to_fourcc(pixel_format
);
6328 crtc
->base
.primary
->fb
->pixel_format
= fourcc
;
6329 crtc
->base
.primary
->fb
->bits_per_pixel
=
6330 drm_format_plane_cpp(fourcc
, 0) * 8;
6332 if (INTEL_INFO(dev
)->gen
>= 4) {
6333 if (plane_config
->tiled
)
6334 offset
= I915_READ(DSPTILEOFF(plane
));
6336 offset
= I915_READ(DSPLINOFF(plane
));
6337 base
= I915_READ(DSPSURF(plane
)) & 0xfffff000;
6339 base
= I915_READ(DSPADDR(plane
));
6341 plane_config
->base
= base
;
6343 val
= I915_READ(PIPESRC(pipe
));
6344 crtc
->base
.primary
->fb
->width
= ((val
>> 16) & 0xfff) + 1;
6345 crtc
->base
.primary
->fb
->height
= ((val
>> 0) & 0xfff) + 1;
6347 val
= I915_READ(DSPSTRIDE(pipe
));
6348 crtc
->base
.primary
->fb
->pitches
[0] = val
& 0xffffffc0;
6350 aligned_height
= intel_align_height(dev
, crtc
->base
.primary
->fb
->height
,
6351 plane_config
->tiled
);
6353 plane_config
->size
= PAGE_ALIGN(crtc
->base
.primary
->fb
->pitches
[0] *
6356 DRM_DEBUG_KMS("pipe/plane %d/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
6357 pipe
, plane
, crtc
->base
.primary
->fb
->width
,
6358 crtc
->base
.primary
->fb
->height
,
6359 crtc
->base
.primary
->fb
->bits_per_pixel
, base
,
6360 crtc
->base
.primary
->fb
->pitches
[0],
6361 plane_config
->size
);
6365 static void chv_crtc_clock_get(struct intel_crtc
*crtc
,
6366 struct intel_crtc_config
*pipe_config
)
6368 struct drm_device
*dev
= crtc
->base
.dev
;
6369 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6370 int pipe
= pipe_config
->cpu_transcoder
;
6371 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
6372 intel_clock_t clock
;
6373 u32 cmn_dw13
, pll_dw0
, pll_dw1
, pll_dw2
;
6374 int refclk
= 100000;
6376 mutex_lock(&dev_priv
->dpio_lock
);
6377 cmn_dw13
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW13(port
));
6378 pll_dw0
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW0(port
));
6379 pll_dw1
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW1(port
));
6380 pll_dw2
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW2(port
));
6381 mutex_unlock(&dev_priv
->dpio_lock
);
6383 clock
.m1
= (pll_dw1
& 0x7) == DPIO_CHV_M1_DIV_BY_2
? 2 : 0;
6384 clock
.m2
= ((pll_dw0
& 0xff) << 22) | (pll_dw2
& 0x3fffff);
6385 clock
.n
= (pll_dw1
>> DPIO_CHV_N_DIV_SHIFT
) & 0xf;
6386 clock
.p1
= (cmn_dw13
>> DPIO_CHV_P1_DIV_SHIFT
) & 0x7;
6387 clock
.p2
= (cmn_dw13
>> DPIO_CHV_P2_DIV_SHIFT
) & 0x1f;
6389 chv_clock(refclk
, &clock
);
6391 /* clock.dot is the fast clock */
6392 pipe_config
->port_clock
= clock
.dot
/ 5;
6395 static bool i9xx_get_pipe_config(struct intel_crtc
*crtc
,
6396 struct intel_crtc_config
*pipe_config
)
6398 struct drm_device
*dev
= crtc
->base
.dev
;
6399 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6402 if (!intel_display_power_enabled(dev_priv
,
6403 POWER_DOMAIN_PIPE(crtc
->pipe
)))
6406 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
6407 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
6409 tmp
= I915_READ(PIPECONF(crtc
->pipe
));
6410 if (!(tmp
& PIPECONF_ENABLE
))
6413 if (IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) {
6414 switch (tmp
& PIPECONF_BPC_MASK
) {
6416 pipe_config
->pipe_bpp
= 18;
6419 pipe_config
->pipe_bpp
= 24;
6421 case PIPECONF_10BPC
:
6422 pipe_config
->pipe_bpp
= 30;
6429 if (IS_VALLEYVIEW(dev
) && (tmp
& PIPECONF_COLOR_RANGE_SELECT
))
6430 pipe_config
->limited_color_range
= true;
6432 if (INTEL_INFO(dev
)->gen
< 4)
6433 pipe_config
->double_wide
= tmp
& PIPECONF_DOUBLE_WIDE
;
6435 intel_get_pipe_timings(crtc
, pipe_config
);
6437 i9xx_get_pfit_config(crtc
, pipe_config
);
6439 if (INTEL_INFO(dev
)->gen
>= 4) {
6440 tmp
= I915_READ(DPLL_MD(crtc
->pipe
));
6441 pipe_config
->pixel_multiplier
=
6442 ((tmp
& DPLL_MD_UDI_MULTIPLIER_MASK
)
6443 >> DPLL_MD_UDI_MULTIPLIER_SHIFT
) + 1;
6444 pipe_config
->dpll_hw_state
.dpll_md
= tmp
;
6445 } else if (IS_I945G(dev
) || IS_I945GM(dev
) || IS_G33(dev
)) {
6446 tmp
= I915_READ(DPLL(crtc
->pipe
));
6447 pipe_config
->pixel_multiplier
=
6448 ((tmp
& SDVO_MULTIPLIER_MASK
)
6449 >> SDVO_MULTIPLIER_SHIFT_HIRES
) + 1;
6451 /* Note that on i915G/GM the pixel multiplier is in the sdvo
6452 * port and will be fixed up in the encoder->get_config
6454 pipe_config
->pixel_multiplier
= 1;
6456 pipe_config
->dpll_hw_state
.dpll
= I915_READ(DPLL(crtc
->pipe
));
6457 if (!IS_VALLEYVIEW(dev
)) {
6459 * DPLL_DVO_2X_MODE must be enabled for both DPLLs
6460 * on 830. Filter it out here so that we don't
6461 * report errors due to that.
6464 pipe_config
->dpll_hw_state
.dpll
&= ~DPLL_DVO_2X_MODE
;
6466 pipe_config
->dpll_hw_state
.fp0
= I915_READ(FP0(crtc
->pipe
));
6467 pipe_config
->dpll_hw_state
.fp1
= I915_READ(FP1(crtc
->pipe
));
6469 /* Mask out read-only status bits. */
6470 pipe_config
->dpll_hw_state
.dpll
&= ~(DPLL_LOCK_VLV
|
6471 DPLL_PORTC_READY_MASK
|
6472 DPLL_PORTB_READY_MASK
);
6475 if (IS_CHERRYVIEW(dev
))
6476 chv_crtc_clock_get(crtc
, pipe_config
);
6477 else if (IS_VALLEYVIEW(dev
))
6478 vlv_crtc_clock_get(crtc
, pipe_config
);
6480 i9xx_crtc_clock_get(crtc
, pipe_config
);
6485 static void ironlake_init_pch_refclk(struct drm_device
*dev
)
6487 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6488 struct intel_encoder
*encoder
;
6490 bool has_lvds
= false;
6491 bool has_cpu_edp
= false;
6492 bool has_panel
= false;
6493 bool has_ck505
= false;
6494 bool can_ssc
= false;
6496 /* We need to take the global config into account */
6497 for_each_intel_encoder(dev
, encoder
) {
6498 switch (encoder
->type
) {
6499 case INTEL_OUTPUT_LVDS
:
6503 case INTEL_OUTPUT_EDP
:
6505 if (enc_to_dig_port(&encoder
->base
)->port
== PORT_A
)
6511 if (HAS_PCH_IBX(dev
)) {
6512 has_ck505
= dev_priv
->vbt
.display_clock_mode
;
6513 can_ssc
= has_ck505
;
6519 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n",
6520 has_panel
, has_lvds
, has_ck505
);
6522 /* Ironlake: try to setup display ref clock before DPLL
6523 * enabling. This is only under driver's control after
6524 * PCH B stepping, previous chipset stepping should be
6525 * ignoring this setting.
6527 val
= I915_READ(PCH_DREF_CONTROL
);
6529 /* As we must carefully and slowly disable/enable each source in turn,
6530 * compute the final state we want first and check if we need to
6531 * make any changes at all.
6534 final
&= ~DREF_NONSPREAD_SOURCE_MASK
;
6536 final
|= DREF_NONSPREAD_CK505_ENABLE
;
6538 final
|= DREF_NONSPREAD_SOURCE_ENABLE
;
6540 final
&= ~DREF_SSC_SOURCE_MASK
;
6541 final
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
6542 final
&= ~DREF_SSC1_ENABLE
;
6545 final
|= DREF_SSC_SOURCE_ENABLE
;
6547 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
6548 final
|= DREF_SSC1_ENABLE
;
6551 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
6552 final
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
6554 final
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
6556 final
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
6558 final
|= DREF_SSC_SOURCE_DISABLE
;
6559 final
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
6565 /* Always enable nonspread source */
6566 val
&= ~DREF_NONSPREAD_SOURCE_MASK
;
6569 val
|= DREF_NONSPREAD_CK505_ENABLE
;
6571 val
|= DREF_NONSPREAD_SOURCE_ENABLE
;
6574 val
&= ~DREF_SSC_SOURCE_MASK
;
6575 val
|= DREF_SSC_SOURCE_ENABLE
;
6577 /* SSC must be turned on before enabling the CPU output */
6578 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
6579 DRM_DEBUG_KMS("Using SSC on panel\n");
6580 val
|= DREF_SSC1_ENABLE
;
6582 val
&= ~DREF_SSC1_ENABLE
;
6584 /* Get SSC going before enabling the outputs */
6585 I915_WRITE(PCH_DREF_CONTROL
, val
);
6586 POSTING_READ(PCH_DREF_CONTROL
);
6589 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
6591 /* Enable CPU source on CPU attached eDP */
6593 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
6594 DRM_DEBUG_KMS("Using SSC on eDP\n");
6595 val
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
6597 val
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
6599 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
6601 I915_WRITE(PCH_DREF_CONTROL
, val
);
6602 POSTING_READ(PCH_DREF_CONTROL
);
6605 DRM_DEBUG_KMS("Disabling SSC entirely\n");
6607 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
6609 /* Turn off CPU output */
6610 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
6612 I915_WRITE(PCH_DREF_CONTROL
, val
);
6613 POSTING_READ(PCH_DREF_CONTROL
);
6616 /* Turn off the SSC source */
6617 val
&= ~DREF_SSC_SOURCE_MASK
;
6618 val
|= DREF_SSC_SOURCE_DISABLE
;
6621 val
&= ~DREF_SSC1_ENABLE
;
6623 I915_WRITE(PCH_DREF_CONTROL
, val
);
6624 POSTING_READ(PCH_DREF_CONTROL
);
6628 BUG_ON(val
!= final
);
6631 static void lpt_reset_fdi_mphy(struct drm_i915_private
*dev_priv
)
6635 tmp
= I915_READ(SOUTH_CHICKEN2
);
6636 tmp
|= FDI_MPHY_IOSFSB_RESET_CTL
;
6637 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
6639 if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2
) &
6640 FDI_MPHY_IOSFSB_RESET_STATUS
, 100))
6641 DRM_ERROR("FDI mPHY reset assert timeout\n");
6643 tmp
= I915_READ(SOUTH_CHICKEN2
);
6644 tmp
&= ~FDI_MPHY_IOSFSB_RESET_CTL
;
6645 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
6647 if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2
) &
6648 FDI_MPHY_IOSFSB_RESET_STATUS
) == 0, 100))
6649 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
6652 /* WaMPhyProgramming:hsw */
6653 static void lpt_program_fdi_mphy(struct drm_i915_private
*dev_priv
)
6657 tmp
= intel_sbi_read(dev_priv
, 0x8008, SBI_MPHY
);
6658 tmp
&= ~(0xFF << 24);
6659 tmp
|= (0x12 << 24);
6660 intel_sbi_write(dev_priv
, 0x8008, tmp
, SBI_MPHY
);
6662 tmp
= intel_sbi_read(dev_priv
, 0x2008, SBI_MPHY
);
6664 intel_sbi_write(dev_priv
, 0x2008, tmp
, SBI_MPHY
);
6666 tmp
= intel_sbi_read(dev_priv
, 0x2108, SBI_MPHY
);
6668 intel_sbi_write(dev_priv
, 0x2108, tmp
, SBI_MPHY
);
6670 tmp
= intel_sbi_read(dev_priv
, 0x206C, SBI_MPHY
);
6671 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
6672 intel_sbi_write(dev_priv
, 0x206C, tmp
, SBI_MPHY
);
6674 tmp
= intel_sbi_read(dev_priv
, 0x216C, SBI_MPHY
);
6675 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
6676 intel_sbi_write(dev_priv
, 0x216C, tmp
, SBI_MPHY
);
6678 tmp
= intel_sbi_read(dev_priv
, 0x2080, SBI_MPHY
);
6681 intel_sbi_write(dev_priv
, 0x2080, tmp
, SBI_MPHY
);
6683 tmp
= intel_sbi_read(dev_priv
, 0x2180, SBI_MPHY
);
6686 intel_sbi_write(dev_priv
, 0x2180, tmp
, SBI_MPHY
);
6688 tmp
= intel_sbi_read(dev_priv
, 0x208C, SBI_MPHY
);
6691 intel_sbi_write(dev_priv
, 0x208C, tmp
, SBI_MPHY
);
6693 tmp
= intel_sbi_read(dev_priv
, 0x218C, SBI_MPHY
);
6696 intel_sbi_write(dev_priv
, 0x218C, tmp
, SBI_MPHY
);
6698 tmp
= intel_sbi_read(dev_priv
, 0x2098, SBI_MPHY
);
6699 tmp
&= ~(0xFF << 16);
6700 tmp
|= (0x1C << 16);
6701 intel_sbi_write(dev_priv
, 0x2098, tmp
, SBI_MPHY
);
6703 tmp
= intel_sbi_read(dev_priv
, 0x2198, SBI_MPHY
);
6704 tmp
&= ~(0xFF << 16);
6705 tmp
|= (0x1C << 16);
6706 intel_sbi_write(dev_priv
, 0x2198, tmp
, SBI_MPHY
);
6708 tmp
= intel_sbi_read(dev_priv
, 0x20C4, SBI_MPHY
);
6710 intel_sbi_write(dev_priv
, 0x20C4, tmp
, SBI_MPHY
);
6712 tmp
= intel_sbi_read(dev_priv
, 0x21C4, SBI_MPHY
);
6714 intel_sbi_write(dev_priv
, 0x21C4, tmp
, SBI_MPHY
);
6716 tmp
= intel_sbi_read(dev_priv
, 0x20EC, SBI_MPHY
);
6717 tmp
&= ~(0xF << 28);
6719 intel_sbi_write(dev_priv
, 0x20EC, tmp
, SBI_MPHY
);
6721 tmp
= intel_sbi_read(dev_priv
, 0x21EC, SBI_MPHY
);
6722 tmp
&= ~(0xF << 28);
6724 intel_sbi_write(dev_priv
, 0x21EC, tmp
, SBI_MPHY
);
6727 /* Implements 3 different sequences from BSpec chapter "Display iCLK
6728 * Programming" based on the parameters passed:
6729 * - Sequence to enable CLKOUT_DP
6730 * - Sequence to enable CLKOUT_DP without spread
6731 * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O
6733 static void lpt_enable_clkout_dp(struct drm_device
*dev
, bool with_spread
,
6736 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6739 if (WARN(with_fdi
&& !with_spread
, "FDI requires downspread\n"))
6741 if (WARN(dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
&&
6742 with_fdi
, "LP PCH doesn't have FDI\n"))
6745 mutex_lock(&dev_priv
->dpio_lock
);
6747 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
6748 tmp
&= ~SBI_SSCCTL_DISABLE
;
6749 tmp
|= SBI_SSCCTL_PATHALT
;
6750 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
6755 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
6756 tmp
&= ~SBI_SSCCTL_PATHALT
;
6757 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
6760 lpt_reset_fdi_mphy(dev_priv
);
6761 lpt_program_fdi_mphy(dev_priv
);
6765 reg
= (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) ?
6766 SBI_GEN0
: SBI_DBUFF0
;
6767 tmp
= intel_sbi_read(dev_priv
, reg
, SBI_ICLK
);
6768 tmp
|= SBI_GEN0_CFG_BUFFENABLE_DISABLE
;
6769 intel_sbi_write(dev_priv
, reg
, tmp
, SBI_ICLK
);
6771 mutex_unlock(&dev_priv
->dpio_lock
);
6774 /* Sequence to disable CLKOUT_DP */
6775 static void lpt_disable_clkout_dp(struct drm_device
*dev
)
6777 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6780 mutex_lock(&dev_priv
->dpio_lock
);
6782 reg
= (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) ?
6783 SBI_GEN0
: SBI_DBUFF0
;
6784 tmp
= intel_sbi_read(dev_priv
, reg
, SBI_ICLK
);
6785 tmp
&= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE
;
6786 intel_sbi_write(dev_priv
, reg
, tmp
, SBI_ICLK
);
6788 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
6789 if (!(tmp
& SBI_SSCCTL_DISABLE
)) {
6790 if (!(tmp
& SBI_SSCCTL_PATHALT
)) {
6791 tmp
|= SBI_SSCCTL_PATHALT
;
6792 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
6795 tmp
|= SBI_SSCCTL_DISABLE
;
6796 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
6799 mutex_unlock(&dev_priv
->dpio_lock
);
6802 static void lpt_init_pch_refclk(struct drm_device
*dev
)
6804 struct intel_encoder
*encoder
;
6805 bool has_vga
= false;
6807 for_each_intel_encoder(dev
, encoder
) {
6808 switch (encoder
->type
) {
6809 case INTEL_OUTPUT_ANALOG
:
6816 lpt_enable_clkout_dp(dev
, true, true);
6818 lpt_disable_clkout_dp(dev
);
6822 * Initialize reference clocks when the driver loads
6824 void intel_init_pch_refclk(struct drm_device
*dev
)
6826 if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
6827 ironlake_init_pch_refclk(dev
);
6828 else if (HAS_PCH_LPT(dev
))
6829 lpt_init_pch_refclk(dev
);
6832 static int ironlake_get_refclk(struct drm_crtc
*crtc
)
6834 struct drm_device
*dev
= crtc
->dev
;
6835 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6836 struct intel_encoder
*encoder
;
6837 int num_connectors
= 0;
6838 bool is_lvds
= false;
6840 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
6841 switch (encoder
->type
) {
6842 case INTEL_OUTPUT_LVDS
:
6849 if (is_lvds
&& intel_panel_use_ssc(dev_priv
) && num_connectors
< 2) {
6850 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n",
6851 dev_priv
->vbt
.lvds_ssc_freq
);
6852 return dev_priv
->vbt
.lvds_ssc_freq
;
6858 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
)
6860 struct drm_i915_private
*dev_priv
= crtc
->dev
->dev_private
;
6861 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6862 int pipe
= intel_crtc
->pipe
;
6867 switch (intel_crtc
->config
.pipe_bpp
) {
6869 val
|= PIPECONF_6BPC
;
6872 val
|= PIPECONF_8BPC
;
6875 val
|= PIPECONF_10BPC
;
6878 val
|= PIPECONF_12BPC
;
6881 /* Case prevented by intel_choose_pipe_bpp_dither. */
6885 if (intel_crtc
->config
.dither
)
6886 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
6888 if (intel_crtc
->config
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
6889 val
|= PIPECONF_INTERLACED_ILK
;
6891 val
|= PIPECONF_PROGRESSIVE
;
6893 if (intel_crtc
->config
.limited_color_range
)
6894 val
|= PIPECONF_COLOR_RANGE_SELECT
;
6896 I915_WRITE(PIPECONF(pipe
), val
);
6897 POSTING_READ(PIPECONF(pipe
));
6901 * Set up the pipe CSC unit.
6903 * Currently only full range RGB to limited range RGB conversion
6904 * is supported, but eventually this should handle various
6905 * RGB<->YCbCr scenarios as well.
6907 static void intel_set_pipe_csc(struct drm_crtc
*crtc
)
6909 struct drm_device
*dev
= crtc
->dev
;
6910 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6911 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6912 int pipe
= intel_crtc
->pipe
;
6913 uint16_t coeff
= 0x7800; /* 1.0 */
6916 * TODO: Check what kind of values actually come out of the pipe
6917 * with these coeff/postoff values and adjust to get the best
6918 * accuracy. Perhaps we even need to take the bpc value into
6922 if (intel_crtc
->config
.limited_color_range
)
6923 coeff
= ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */
6926 * GY/GU and RY/RU should be the other way around according
6927 * to BSpec, but reality doesn't agree. Just set them up in
6928 * a way that results in the correct picture.
6930 I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe
), coeff
<< 16);
6931 I915_WRITE(PIPE_CSC_COEFF_BY(pipe
), 0);
6933 I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe
), coeff
);
6934 I915_WRITE(PIPE_CSC_COEFF_BU(pipe
), 0);
6936 I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe
), 0);
6937 I915_WRITE(PIPE_CSC_COEFF_BV(pipe
), coeff
<< 16);
6939 I915_WRITE(PIPE_CSC_PREOFF_HI(pipe
), 0);
6940 I915_WRITE(PIPE_CSC_PREOFF_ME(pipe
), 0);
6941 I915_WRITE(PIPE_CSC_PREOFF_LO(pipe
), 0);
6943 if (INTEL_INFO(dev
)->gen
> 6) {
6944 uint16_t postoff
= 0;
6946 if (intel_crtc
->config
.limited_color_range
)
6947 postoff
= (16 * (1 << 12) / 255) & 0x1fff;
6949 I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe
), postoff
);
6950 I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe
), postoff
);
6951 I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe
), postoff
);
6953 I915_WRITE(PIPE_CSC_MODE(pipe
), 0);
6955 uint32_t mode
= CSC_MODE_YUV_TO_RGB
;
6957 if (intel_crtc
->config
.limited_color_range
)
6958 mode
|= CSC_BLACK_SCREEN_OFFSET
;
6960 I915_WRITE(PIPE_CSC_MODE(pipe
), mode
);
6964 static void haswell_set_pipeconf(struct drm_crtc
*crtc
)
6966 struct drm_device
*dev
= crtc
->dev
;
6967 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6968 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6969 enum pipe pipe
= intel_crtc
->pipe
;
6970 enum transcoder cpu_transcoder
= intel_crtc
->config
.cpu_transcoder
;
6975 if (IS_HASWELL(dev
) && intel_crtc
->config
.dither
)
6976 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
6978 if (intel_crtc
->config
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
6979 val
|= PIPECONF_INTERLACED_ILK
;
6981 val
|= PIPECONF_PROGRESSIVE
;
6983 I915_WRITE(PIPECONF(cpu_transcoder
), val
);
6984 POSTING_READ(PIPECONF(cpu_transcoder
));
6986 I915_WRITE(GAMMA_MODE(intel_crtc
->pipe
), GAMMA_MODE_MODE_8BIT
);
6987 POSTING_READ(GAMMA_MODE(intel_crtc
->pipe
));
6989 if (IS_BROADWELL(dev
)) {
6992 switch (intel_crtc
->config
.pipe_bpp
) {
6994 val
|= PIPEMISC_DITHER_6_BPC
;
6997 val
|= PIPEMISC_DITHER_8_BPC
;
7000 val
|= PIPEMISC_DITHER_10_BPC
;
7003 val
|= PIPEMISC_DITHER_12_BPC
;
7006 /* Case prevented by pipe_config_set_bpp. */
7010 if (intel_crtc
->config
.dither
)
7011 val
|= PIPEMISC_DITHER_ENABLE
| PIPEMISC_DITHER_TYPE_SP
;
7013 I915_WRITE(PIPEMISC(pipe
), val
);
7017 static bool ironlake_compute_clocks(struct drm_crtc
*crtc
,
7018 intel_clock_t
*clock
,
7019 bool *has_reduced_clock
,
7020 intel_clock_t
*reduced_clock
)
7022 struct drm_device
*dev
= crtc
->dev
;
7023 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7024 struct intel_encoder
*intel_encoder
;
7026 const intel_limit_t
*limit
;
7027 bool ret
, is_lvds
= false;
7029 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
) {
7030 switch (intel_encoder
->type
) {
7031 case INTEL_OUTPUT_LVDS
:
7037 refclk
= ironlake_get_refclk(crtc
);
7040 * Returns a set of divisors for the desired target clock with the given
7041 * refclk, or FALSE. The returned values represent the clock equation:
7042 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
7044 limit
= intel_limit(crtc
, refclk
);
7045 ret
= dev_priv
->display
.find_dpll(limit
, crtc
,
7046 to_intel_crtc(crtc
)->config
.port_clock
,
7047 refclk
, NULL
, clock
);
7051 if (is_lvds
&& dev_priv
->lvds_downclock_avail
) {
7053 * Ensure we match the reduced clock's P to the target clock.
7054 * If the clocks don't match, we can't switch the display clock
7055 * by using the FP0/FP1. In such case we will disable the LVDS
7056 * downclock feature.
7058 *has_reduced_clock
=
7059 dev_priv
->display
.find_dpll(limit
, crtc
,
7060 dev_priv
->lvds_downclock
,
7068 int ironlake_get_lanes_required(int target_clock
, int link_bw
, int bpp
)
7071 * Account for spread spectrum to avoid
7072 * oversubscribing the link. Max center spread
7073 * is 2.5%; use 5% for safety's sake.
7075 u32 bps
= target_clock
* bpp
* 21 / 20;
7076 return DIV_ROUND_UP(bps
, link_bw
* 8);
7079 static bool ironlake_needs_fb_cb_tune(struct dpll
*dpll
, int factor
)
7081 return i9xx_dpll_compute_m(dpll
) < factor
* dpll
->n
;
7084 static uint32_t ironlake_compute_dpll(struct intel_crtc
*intel_crtc
,
7086 intel_clock_t
*reduced_clock
, u32
*fp2
)
7088 struct drm_crtc
*crtc
= &intel_crtc
->base
;
7089 struct drm_device
*dev
= crtc
->dev
;
7090 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7091 struct intel_encoder
*intel_encoder
;
7093 int factor
, num_connectors
= 0;
7094 bool is_lvds
= false, is_sdvo
= false;
7096 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
) {
7097 switch (intel_encoder
->type
) {
7098 case INTEL_OUTPUT_LVDS
:
7101 case INTEL_OUTPUT_SDVO
:
7102 case INTEL_OUTPUT_HDMI
:
7110 /* Enable autotuning of the PLL clock (if permissible) */
7113 if ((intel_panel_use_ssc(dev_priv
) &&
7114 dev_priv
->vbt
.lvds_ssc_freq
== 100000) ||
7115 (HAS_PCH_IBX(dev
) && intel_is_dual_link_lvds(dev
)))
7117 } else if (intel_crtc
->config
.sdvo_tv_clock
)
7120 if (ironlake_needs_fb_cb_tune(&intel_crtc
->config
.dpll
, factor
))
7123 if (fp2
&& (reduced_clock
->m
< factor
* reduced_clock
->n
))
7129 dpll
|= DPLLB_MODE_LVDS
;
7131 dpll
|= DPLLB_MODE_DAC_SERIAL
;
7133 dpll
|= (intel_crtc
->config
.pixel_multiplier
- 1)
7134 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
;
7137 dpll
|= DPLL_SDVO_HIGH_SPEED
;
7138 if (intel_crtc
->config
.has_dp_encoder
)
7139 dpll
|= DPLL_SDVO_HIGH_SPEED
;
7141 /* compute bitmask from p1 value */
7142 dpll
|= (1 << (intel_crtc
->config
.dpll
.p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
7144 dpll
|= (1 << (intel_crtc
->config
.dpll
.p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
7146 switch (intel_crtc
->config
.dpll
.p2
) {
7148 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
7151 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
7154 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
7157 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
7161 if (is_lvds
&& intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
7162 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
7164 dpll
|= PLL_REF_INPUT_DREFCLK
;
7166 return dpll
| DPLL_VCO_ENABLE
;
7169 static int ironlake_crtc_mode_set(struct drm_crtc
*crtc
,
7171 struct drm_framebuffer
*fb
)
7173 struct drm_device
*dev
= crtc
->dev
;
7174 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7175 int num_connectors
= 0;
7176 intel_clock_t clock
, reduced_clock
;
7177 u32 dpll
= 0, fp
= 0, fp2
= 0;
7178 bool ok
, has_reduced_clock
= false;
7179 bool is_lvds
= false;
7180 struct intel_encoder
*encoder
;
7181 struct intel_shared_dpll
*pll
;
7183 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
7184 switch (encoder
->type
) {
7185 case INTEL_OUTPUT_LVDS
:
7193 WARN(!(HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
)),
7194 "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev
));
7196 ok
= ironlake_compute_clocks(crtc
, &clock
,
7197 &has_reduced_clock
, &reduced_clock
);
7198 if (!ok
&& !intel_crtc
->config
.clock_set
) {
7199 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7202 /* Compat-code for transition, will disappear. */
7203 if (!intel_crtc
->config
.clock_set
) {
7204 intel_crtc
->config
.dpll
.n
= clock
.n
;
7205 intel_crtc
->config
.dpll
.m1
= clock
.m1
;
7206 intel_crtc
->config
.dpll
.m2
= clock
.m2
;
7207 intel_crtc
->config
.dpll
.p1
= clock
.p1
;
7208 intel_crtc
->config
.dpll
.p2
= clock
.p2
;
7211 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
7212 if (intel_crtc
->config
.has_pch_encoder
) {
7213 fp
= i9xx_dpll_compute_fp(&intel_crtc
->config
.dpll
);
7214 if (has_reduced_clock
)
7215 fp2
= i9xx_dpll_compute_fp(&reduced_clock
);
7217 dpll
= ironlake_compute_dpll(intel_crtc
,
7218 &fp
, &reduced_clock
,
7219 has_reduced_clock
? &fp2
: NULL
);
7221 intel_crtc
->config
.dpll_hw_state
.dpll
= dpll
;
7222 intel_crtc
->config
.dpll_hw_state
.fp0
= fp
;
7223 if (has_reduced_clock
)
7224 intel_crtc
->config
.dpll_hw_state
.fp1
= fp2
;
7226 intel_crtc
->config
.dpll_hw_state
.fp1
= fp
;
7228 pll
= intel_get_shared_dpll(intel_crtc
);
7230 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
7231 pipe_name(intel_crtc
->pipe
));
7235 intel_put_shared_dpll(intel_crtc
);
7237 if (is_lvds
&& has_reduced_clock
&& i915
.powersave
)
7238 intel_crtc
->lowfreq_avail
= true;
7240 intel_crtc
->lowfreq_avail
= false;
7245 static void intel_pch_transcoder_get_m_n(struct intel_crtc
*crtc
,
7246 struct intel_link_m_n
*m_n
)
7248 struct drm_device
*dev
= crtc
->base
.dev
;
7249 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7250 enum pipe pipe
= crtc
->pipe
;
7252 m_n
->link_m
= I915_READ(PCH_TRANS_LINK_M1(pipe
));
7253 m_n
->link_n
= I915_READ(PCH_TRANS_LINK_N1(pipe
));
7254 m_n
->gmch_m
= I915_READ(PCH_TRANS_DATA_M1(pipe
))
7256 m_n
->gmch_n
= I915_READ(PCH_TRANS_DATA_N1(pipe
));
7257 m_n
->tu
= ((I915_READ(PCH_TRANS_DATA_M1(pipe
))
7258 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
7261 static void intel_cpu_transcoder_get_m_n(struct intel_crtc
*crtc
,
7262 enum transcoder transcoder
,
7263 struct intel_link_m_n
*m_n
,
7264 struct intel_link_m_n
*m2_n2
)
7266 struct drm_device
*dev
= crtc
->base
.dev
;
7267 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7268 enum pipe pipe
= crtc
->pipe
;
7270 if (INTEL_INFO(dev
)->gen
>= 5) {
7271 m_n
->link_m
= I915_READ(PIPE_LINK_M1(transcoder
));
7272 m_n
->link_n
= I915_READ(PIPE_LINK_N1(transcoder
));
7273 m_n
->gmch_m
= I915_READ(PIPE_DATA_M1(transcoder
))
7275 m_n
->gmch_n
= I915_READ(PIPE_DATA_N1(transcoder
));
7276 m_n
->tu
= ((I915_READ(PIPE_DATA_M1(transcoder
))
7277 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
7278 /* Read M2_N2 registers only for gen < 8 (M2_N2 available for
7279 * gen < 8) and if DRRS is supported (to make sure the
7280 * registers are not unnecessarily read).
7282 if (m2_n2
&& INTEL_INFO(dev
)->gen
< 8 &&
7283 crtc
->config
.has_drrs
) {
7284 m2_n2
->link_m
= I915_READ(PIPE_LINK_M2(transcoder
));
7285 m2_n2
->link_n
= I915_READ(PIPE_LINK_N2(transcoder
));
7286 m2_n2
->gmch_m
= I915_READ(PIPE_DATA_M2(transcoder
))
7288 m2_n2
->gmch_n
= I915_READ(PIPE_DATA_N2(transcoder
));
7289 m2_n2
->tu
= ((I915_READ(PIPE_DATA_M2(transcoder
))
7290 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
7293 m_n
->link_m
= I915_READ(PIPE_LINK_M_G4X(pipe
));
7294 m_n
->link_n
= I915_READ(PIPE_LINK_N_G4X(pipe
));
7295 m_n
->gmch_m
= I915_READ(PIPE_DATA_M_G4X(pipe
))
7297 m_n
->gmch_n
= I915_READ(PIPE_DATA_N_G4X(pipe
));
7298 m_n
->tu
= ((I915_READ(PIPE_DATA_M_G4X(pipe
))
7299 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
7303 void intel_dp_get_m_n(struct intel_crtc
*crtc
,
7304 struct intel_crtc_config
*pipe_config
)
7306 if (crtc
->config
.has_pch_encoder
)
7307 intel_pch_transcoder_get_m_n(crtc
, &pipe_config
->dp_m_n
);
7309 intel_cpu_transcoder_get_m_n(crtc
, pipe_config
->cpu_transcoder
,
7310 &pipe_config
->dp_m_n
,
7311 &pipe_config
->dp_m2_n2
);
7314 static void ironlake_get_fdi_m_n_config(struct intel_crtc
*crtc
,
7315 struct intel_crtc_config
*pipe_config
)
7317 intel_cpu_transcoder_get_m_n(crtc
, pipe_config
->cpu_transcoder
,
7318 &pipe_config
->fdi_m_n
, NULL
);
7321 static void ironlake_get_pfit_config(struct intel_crtc
*crtc
,
7322 struct intel_crtc_config
*pipe_config
)
7324 struct drm_device
*dev
= crtc
->base
.dev
;
7325 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7328 tmp
= I915_READ(PF_CTL(crtc
->pipe
));
7330 if (tmp
& PF_ENABLE
) {
7331 pipe_config
->pch_pfit
.enabled
= true;
7332 pipe_config
->pch_pfit
.pos
= I915_READ(PF_WIN_POS(crtc
->pipe
));
7333 pipe_config
->pch_pfit
.size
= I915_READ(PF_WIN_SZ(crtc
->pipe
));
7335 /* We currently do not free assignements of panel fitters on
7336 * ivb/hsw (since we don't use the higher upscaling modes which
7337 * differentiates them) so just WARN about this case for now. */
7339 WARN_ON((tmp
& PF_PIPE_SEL_MASK_IVB
) !=
7340 PF_PIPE_SEL_IVB(crtc
->pipe
));
7345 static void ironlake_get_plane_config(struct intel_crtc
*crtc
,
7346 struct intel_plane_config
*plane_config
)
7348 struct drm_device
*dev
= crtc
->base
.dev
;
7349 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7350 u32 val
, base
, offset
;
7351 int pipe
= crtc
->pipe
, plane
= crtc
->plane
;
7352 int fourcc
, pixel_format
;
7355 crtc
->base
.primary
->fb
= kzalloc(sizeof(struct intel_framebuffer
), GFP_KERNEL
);
7356 if (!crtc
->base
.primary
->fb
) {
7357 DRM_DEBUG_KMS("failed to alloc fb\n");
7361 val
= I915_READ(DSPCNTR(plane
));
7363 if (INTEL_INFO(dev
)->gen
>= 4)
7364 if (val
& DISPPLANE_TILED
)
7365 plane_config
->tiled
= true;
7367 pixel_format
= val
& DISPPLANE_PIXFORMAT_MASK
;
7368 fourcc
= intel_format_to_fourcc(pixel_format
);
7369 crtc
->base
.primary
->fb
->pixel_format
= fourcc
;
7370 crtc
->base
.primary
->fb
->bits_per_pixel
=
7371 drm_format_plane_cpp(fourcc
, 0) * 8;
7373 base
= I915_READ(DSPSURF(plane
)) & 0xfffff000;
7374 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
7375 offset
= I915_READ(DSPOFFSET(plane
));
7377 if (plane_config
->tiled
)
7378 offset
= I915_READ(DSPTILEOFF(plane
));
7380 offset
= I915_READ(DSPLINOFF(plane
));
7382 plane_config
->base
= base
;
7384 val
= I915_READ(PIPESRC(pipe
));
7385 crtc
->base
.primary
->fb
->width
= ((val
>> 16) & 0xfff) + 1;
7386 crtc
->base
.primary
->fb
->height
= ((val
>> 0) & 0xfff) + 1;
7388 val
= I915_READ(DSPSTRIDE(pipe
));
7389 crtc
->base
.primary
->fb
->pitches
[0] = val
& 0xffffffc0;
7391 aligned_height
= intel_align_height(dev
, crtc
->base
.primary
->fb
->height
,
7392 plane_config
->tiled
);
7394 plane_config
->size
= PAGE_ALIGN(crtc
->base
.primary
->fb
->pitches
[0] *
7397 DRM_DEBUG_KMS("pipe/plane %d/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
7398 pipe
, plane
, crtc
->base
.primary
->fb
->width
,
7399 crtc
->base
.primary
->fb
->height
,
7400 crtc
->base
.primary
->fb
->bits_per_pixel
, base
,
7401 crtc
->base
.primary
->fb
->pitches
[0],
7402 plane_config
->size
);
7405 static bool ironlake_get_pipe_config(struct intel_crtc
*crtc
,
7406 struct intel_crtc_config
*pipe_config
)
7408 struct drm_device
*dev
= crtc
->base
.dev
;
7409 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7412 if (!intel_display_power_enabled(dev_priv
,
7413 POWER_DOMAIN_PIPE(crtc
->pipe
)))
7416 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
7417 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
7419 tmp
= I915_READ(PIPECONF(crtc
->pipe
));
7420 if (!(tmp
& PIPECONF_ENABLE
))
7423 switch (tmp
& PIPECONF_BPC_MASK
) {
7425 pipe_config
->pipe_bpp
= 18;
7428 pipe_config
->pipe_bpp
= 24;
7430 case PIPECONF_10BPC
:
7431 pipe_config
->pipe_bpp
= 30;
7433 case PIPECONF_12BPC
:
7434 pipe_config
->pipe_bpp
= 36;
7440 if (tmp
& PIPECONF_COLOR_RANGE_SELECT
)
7441 pipe_config
->limited_color_range
= true;
7443 if (I915_READ(PCH_TRANSCONF(crtc
->pipe
)) & TRANS_ENABLE
) {
7444 struct intel_shared_dpll
*pll
;
7446 pipe_config
->has_pch_encoder
= true;
7448 tmp
= I915_READ(FDI_RX_CTL(crtc
->pipe
));
7449 pipe_config
->fdi_lanes
= ((FDI_DP_PORT_WIDTH_MASK
& tmp
) >>
7450 FDI_DP_PORT_WIDTH_SHIFT
) + 1;
7452 ironlake_get_fdi_m_n_config(crtc
, pipe_config
);
7454 if (HAS_PCH_IBX(dev_priv
->dev
)) {
7455 pipe_config
->shared_dpll
=
7456 (enum intel_dpll_id
) crtc
->pipe
;
7458 tmp
= I915_READ(PCH_DPLL_SEL
);
7459 if (tmp
& TRANS_DPLLB_SEL(crtc
->pipe
))
7460 pipe_config
->shared_dpll
= DPLL_ID_PCH_PLL_B
;
7462 pipe_config
->shared_dpll
= DPLL_ID_PCH_PLL_A
;
7465 pll
= &dev_priv
->shared_dplls
[pipe_config
->shared_dpll
];
7467 WARN_ON(!pll
->get_hw_state(dev_priv
, pll
,
7468 &pipe_config
->dpll_hw_state
));
7470 tmp
= pipe_config
->dpll_hw_state
.dpll
;
7471 pipe_config
->pixel_multiplier
=
7472 ((tmp
& PLL_REF_SDVO_HDMI_MULTIPLIER_MASK
)
7473 >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
) + 1;
7475 ironlake_pch_clock_get(crtc
, pipe_config
);
7477 pipe_config
->pixel_multiplier
= 1;
7480 intel_get_pipe_timings(crtc
, pipe_config
);
7482 ironlake_get_pfit_config(crtc
, pipe_config
);
7487 static void assert_can_disable_lcpll(struct drm_i915_private
*dev_priv
)
7489 struct drm_device
*dev
= dev_priv
->dev
;
7490 struct intel_crtc
*crtc
;
7492 for_each_intel_crtc(dev
, crtc
)
7493 WARN(crtc
->active
, "CRTC for pipe %c enabled\n",
7494 pipe_name(crtc
->pipe
));
7496 WARN(I915_READ(HSW_PWR_WELL_DRIVER
), "Power well on\n");
7497 WARN(I915_READ(SPLL_CTL
) & SPLL_PLL_ENABLE
, "SPLL enabled\n");
7498 WARN(I915_READ(WRPLL_CTL1
) & WRPLL_PLL_ENABLE
, "WRPLL1 enabled\n");
7499 WARN(I915_READ(WRPLL_CTL2
) & WRPLL_PLL_ENABLE
, "WRPLL2 enabled\n");
7500 WARN(I915_READ(PCH_PP_STATUS
) & PP_ON
, "Panel power on\n");
7501 WARN(I915_READ(BLC_PWM_CPU_CTL2
) & BLM_PWM_ENABLE
,
7502 "CPU PWM1 enabled\n");
7503 if (IS_HASWELL(dev
))
7504 WARN(I915_READ(HSW_BLC_PWM2_CTL
) & BLM_PWM_ENABLE
,
7505 "CPU PWM2 enabled\n");
7506 WARN(I915_READ(BLC_PWM_PCH_CTL1
) & BLM_PCH_PWM_ENABLE
,
7507 "PCH PWM1 enabled\n");
7508 WARN(I915_READ(UTIL_PIN_CTL
) & UTIL_PIN_ENABLE
,
7509 "Utility pin enabled\n");
7510 WARN(I915_READ(PCH_GTC_CTL
) & PCH_GTC_ENABLE
, "PCH GTC enabled\n");
7513 * In theory we can still leave IRQs enabled, as long as only the HPD
7514 * interrupts remain enabled. We used to check for that, but since it's
7515 * gen-specific and since we only disable LCPLL after we fully disable
7516 * the interrupts, the check below should be enough.
7518 WARN(intel_irqs_enabled(dev_priv
), "IRQs enabled\n");
7521 static uint32_t hsw_read_dcomp(struct drm_i915_private
*dev_priv
)
7523 struct drm_device
*dev
= dev_priv
->dev
;
7525 if (IS_HASWELL(dev
))
7526 return I915_READ(D_COMP_HSW
);
7528 return I915_READ(D_COMP_BDW
);
7531 static void hsw_write_dcomp(struct drm_i915_private
*dev_priv
, uint32_t val
)
7533 struct drm_device
*dev
= dev_priv
->dev
;
7535 if (IS_HASWELL(dev
)) {
7536 mutex_lock(&dev_priv
->rps
.hw_lock
);
7537 if (sandybridge_pcode_write(dev_priv
, GEN6_PCODE_WRITE_D_COMP
,
7539 DRM_ERROR("Failed to write to D_COMP\n");
7540 mutex_unlock(&dev_priv
->rps
.hw_lock
);
7542 I915_WRITE(D_COMP_BDW
, val
);
7543 POSTING_READ(D_COMP_BDW
);
7548 * This function implements pieces of two sequences from BSpec:
7549 * - Sequence for display software to disable LCPLL
7550 * - Sequence for display software to allow package C8+
7551 * The steps implemented here are just the steps that actually touch the LCPLL
7552 * register. Callers should take care of disabling all the display engine
7553 * functions, doing the mode unset, fixing interrupts, etc.
7555 static void hsw_disable_lcpll(struct drm_i915_private
*dev_priv
,
7556 bool switch_to_fclk
, bool allow_power_down
)
7560 assert_can_disable_lcpll(dev_priv
);
7562 val
= I915_READ(LCPLL_CTL
);
7564 if (switch_to_fclk
) {
7565 val
|= LCPLL_CD_SOURCE_FCLK
;
7566 I915_WRITE(LCPLL_CTL
, val
);
7568 if (wait_for_atomic_us(I915_READ(LCPLL_CTL
) &
7569 LCPLL_CD_SOURCE_FCLK_DONE
, 1))
7570 DRM_ERROR("Switching to FCLK failed\n");
7572 val
= I915_READ(LCPLL_CTL
);
7575 val
|= LCPLL_PLL_DISABLE
;
7576 I915_WRITE(LCPLL_CTL
, val
);
7577 POSTING_READ(LCPLL_CTL
);
7579 if (wait_for((I915_READ(LCPLL_CTL
) & LCPLL_PLL_LOCK
) == 0, 1))
7580 DRM_ERROR("LCPLL still locked\n");
7582 val
= hsw_read_dcomp(dev_priv
);
7583 val
|= D_COMP_COMP_DISABLE
;
7584 hsw_write_dcomp(dev_priv
, val
);
7587 if (wait_for((hsw_read_dcomp(dev_priv
) & D_COMP_RCOMP_IN_PROGRESS
) == 0,
7589 DRM_ERROR("D_COMP RCOMP still in progress\n");
7591 if (allow_power_down
) {
7592 val
= I915_READ(LCPLL_CTL
);
7593 val
|= LCPLL_POWER_DOWN_ALLOW
;
7594 I915_WRITE(LCPLL_CTL
, val
);
7595 POSTING_READ(LCPLL_CTL
);
7600 * Fully restores LCPLL, disallowing power down and switching back to LCPLL
7603 static void hsw_restore_lcpll(struct drm_i915_private
*dev_priv
)
7606 unsigned long irqflags
;
7608 val
= I915_READ(LCPLL_CTL
);
7610 if ((val
& (LCPLL_PLL_LOCK
| LCPLL_PLL_DISABLE
| LCPLL_CD_SOURCE_FCLK
|
7611 LCPLL_POWER_DOWN_ALLOW
)) == LCPLL_PLL_LOCK
)
7615 * Make sure we're not on PC8 state before disabling PC8, otherwise
7616 * we'll hang the machine. To prevent PC8 state, just enable force_wake.
7618 * The other problem is that hsw_restore_lcpll() is called as part of
7619 * the runtime PM resume sequence, so we can't just call
7620 * gen6_gt_force_wake_get() because that function calls
7621 * intel_runtime_pm_get(), and we can't change the runtime PM refcount
7622 * while we are on the resume sequence. So to solve this problem we have
7623 * to call special forcewake code that doesn't touch runtime PM and
7624 * doesn't enable the forcewake delayed work.
7626 spin_lock_irqsave(&dev_priv
->uncore
.lock
, irqflags
);
7627 if (dev_priv
->uncore
.forcewake_count
++ == 0)
7628 dev_priv
->uncore
.funcs
.force_wake_get(dev_priv
, FORCEWAKE_ALL
);
7629 spin_unlock_irqrestore(&dev_priv
->uncore
.lock
, irqflags
);
7631 if (val
& LCPLL_POWER_DOWN_ALLOW
) {
7632 val
&= ~LCPLL_POWER_DOWN_ALLOW
;
7633 I915_WRITE(LCPLL_CTL
, val
);
7634 POSTING_READ(LCPLL_CTL
);
7637 val
= hsw_read_dcomp(dev_priv
);
7638 val
|= D_COMP_COMP_FORCE
;
7639 val
&= ~D_COMP_COMP_DISABLE
;
7640 hsw_write_dcomp(dev_priv
, val
);
7642 val
= I915_READ(LCPLL_CTL
);
7643 val
&= ~LCPLL_PLL_DISABLE
;
7644 I915_WRITE(LCPLL_CTL
, val
);
7646 if (wait_for(I915_READ(LCPLL_CTL
) & LCPLL_PLL_LOCK
, 5))
7647 DRM_ERROR("LCPLL not locked yet\n");
7649 if (val
& LCPLL_CD_SOURCE_FCLK
) {
7650 val
= I915_READ(LCPLL_CTL
);
7651 val
&= ~LCPLL_CD_SOURCE_FCLK
;
7652 I915_WRITE(LCPLL_CTL
, val
);
7654 if (wait_for_atomic_us((I915_READ(LCPLL_CTL
) &
7655 LCPLL_CD_SOURCE_FCLK_DONE
) == 0, 1))
7656 DRM_ERROR("Switching back to LCPLL failed\n");
7659 /* See the big comment above. */
7660 spin_lock_irqsave(&dev_priv
->uncore
.lock
, irqflags
);
7661 if (--dev_priv
->uncore
.forcewake_count
== 0)
7662 dev_priv
->uncore
.funcs
.force_wake_put(dev_priv
, FORCEWAKE_ALL
);
7663 spin_unlock_irqrestore(&dev_priv
->uncore
.lock
, irqflags
);
7667 * Package states C8 and deeper are really deep PC states that can only be
7668 * reached when all the devices on the system allow it, so even if the graphics
7669 * device allows PC8+, it doesn't mean the system will actually get to these
7670 * states. Our driver only allows PC8+ when going into runtime PM.
7672 * The requirements for PC8+ are that all the outputs are disabled, the power
7673 * well is disabled and most interrupts are disabled, and these are also
7674 * requirements for runtime PM. When these conditions are met, we manually do
7675 * the other conditions: disable the interrupts, clocks and switch LCPLL refclk
7676 * to Fclk. If we're in PC8+ and we get an non-hotplug interrupt, we can hard
7679 * When we really reach PC8 or deeper states (not just when we allow it) we lose
7680 * the state of some registers, so when we come back from PC8+ we need to
7681 * restore this state. We don't get into PC8+ if we're not in RC6, so we don't
7682 * need to take care of the registers kept by RC6. Notice that this happens even
7683 * if we don't put the device in PCI D3 state (which is what currently happens
7684 * because of the runtime PM support).
7686 * For more, read "Display Sequences for Package C8" on the hardware
7689 void hsw_enable_pc8(struct drm_i915_private
*dev_priv
)
7691 struct drm_device
*dev
= dev_priv
->dev
;
7694 DRM_DEBUG_KMS("Enabling package C8+\n");
7696 if (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) {
7697 val
= I915_READ(SOUTH_DSPCLK_GATE_D
);
7698 val
&= ~PCH_LP_PARTITION_LEVEL_DISABLE
;
7699 I915_WRITE(SOUTH_DSPCLK_GATE_D
, val
);
7702 lpt_disable_clkout_dp(dev
);
7703 hsw_disable_lcpll(dev_priv
, true, true);
7706 void hsw_disable_pc8(struct drm_i915_private
*dev_priv
)
7708 struct drm_device
*dev
= dev_priv
->dev
;
7711 DRM_DEBUG_KMS("Disabling package C8+\n");
7713 hsw_restore_lcpll(dev_priv
);
7714 lpt_init_pch_refclk(dev
);
7716 if (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) {
7717 val
= I915_READ(SOUTH_DSPCLK_GATE_D
);
7718 val
|= PCH_LP_PARTITION_LEVEL_DISABLE
;
7719 I915_WRITE(SOUTH_DSPCLK_GATE_D
, val
);
7722 intel_prepare_ddi(dev
);
7725 static void snb_modeset_global_resources(struct drm_device
*dev
)
7727 modeset_update_crtc_power_domains(dev
);
7730 static void haswell_modeset_global_resources(struct drm_device
*dev
)
7732 modeset_update_crtc_power_domains(dev
);
7735 static int haswell_crtc_mode_set(struct drm_crtc
*crtc
,
7737 struct drm_framebuffer
*fb
)
7739 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7741 if (!intel_ddi_pll_select(intel_crtc
))
7744 intel_crtc
->lowfreq_avail
= false;
7749 static void haswell_get_ddi_pll(struct drm_i915_private
*dev_priv
,
7751 struct intel_crtc_config
*pipe_config
)
7753 pipe_config
->ddi_pll_sel
= I915_READ(PORT_CLK_SEL(port
));
7755 switch (pipe_config
->ddi_pll_sel
) {
7756 case PORT_CLK_SEL_WRPLL1
:
7757 pipe_config
->shared_dpll
= DPLL_ID_WRPLL1
;
7759 case PORT_CLK_SEL_WRPLL2
:
7760 pipe_config
->shared_dpll
= DPLL_ID_WRPLL2
;
7765 static void haswell_get_ddi_port_state(struct intel_crtc
*crtc
,
7766 struct intel_crtc_config
*pipe_config
)
7768 struct drm_device
*dev
= crtc
->base
.dev
;
7769 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7770 struct intel_shared_dpll
*pll
;
7774 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(pipe_config
->cpu_transcoder
));
7776 port
= (tmp
& TRANS_DDI_PORT_MASK
) >> TRANS_DDI_PORT_SHIFT
;
7778 haswell_get_ddi_pll(dev_priv
, port
, pipe_config
);
7780 if (pipe_config
->shared_dpll
>= 0) {
7781 pll
= &dev_priv
->shared_dplls
[pipe_config
->shared_dpll
];
7783 WARN_ON(!pll
->get_hw_state(dev_priv
, pll
,
7784 &pipe_config
->dpll_hw_state
));
7788 * Haswell has only FDI/PCH transcoder A. It is which is connected to
7789 * DDI E. So just check whether this pipe is wired to DDI E and whether
7790 * the PCH transcoder is on.
7792 if ((port
== PORT_E
) && I915_READ(LPT_TRANSCONF
) & TRANS_ENABLE
) {
7793 pipe_config
->has_pch_encoder
= true;
7795 tmp
= I915_READ(FDI_RX_CTL(PIPE_A
));
7796 pipe_config
->fdi_lanes
= ((FDI_DP_PORT_WIDTH_MASK
& tmp
) >>
7797 FDI_DP_PORT_WIDTH_SHIFT
) + 1;
7799 ironlake_get_fdi_m_n_config(crtc
, pipe_config
);
7803 static bool haswell_get_pipe_config(struct intel_crtc
*crtc
,
7804 struct intel_crtc_config
*pipe_config
)
7806 struct drm_device
*dev
= crtc
->base
.dev
;
7807 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7808 enum intel_display_power_domain pfit_domain
;
7811 if (!intel_display_power_enabled(dev_priv
,
7812 POWER_DOMAIN_PIPE(crtc
->pipe
)))
7815 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
7816 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
7818 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP
));
7819 if (tmp
& TRANS_DDI_FUNC_ENABLE
) {
7820 enum pipe trans_edp_pipe
;
7821 switch (tmp
& TRANS_DDI_EDP_INPUT_MASK
) {
7823 WARN(1, "unknown pipe linked to edp transcoder\n");
7824 case TRANS_DDI_EDP_INPUT_A_ONOFF
:
7825 case TRANS_DDI_EDP_INPUT_A_ON
:
7826 trans_edp_pipe
= PIPE_A
;
7828 case TRANS_DDI_EDP_INPUT_B_ONOFF
:
7829 trans_edp_pipe
= PIPE_B
;
7831 case TRANS_DDI_EDP_INPUT_C_ONOFF
:
7832 trans_edp_pipe
= PIPE_C
;
7836 if (trans_edp_pipe
== crtc
->pipe
)
7837 pipe_config
->cpu_transcoder
= TRANSCODER_EDP
;
7840 if (!intel_display_power_enabled(dev_priv
,
7841 POWER_DOMAIN_TRANSCODER(pipe_config
->cpu_transcoder
)))
7844 tmp
= I915_READ(PIPECONF(pipe_config
->cpu_transcoder
));
7845 if (!(tmp
& PIPECONF_ENABLE
))
7848 haswell_get_ddi_port_state(crtc
, pipe_config
);
7850 intel_get_pipe_timings(crtc
, pipe_config
);
7852 pfit_domain
= POWER_DOMAIN_PIPE_PANEL_FITTER(crtc
->pipe
);
7853 if (intel_display_power_enabled(dev_priv
, pfit_domain
))
7854 ironlake_get_pfit_config(crtc
, pipe_config
);
7856 if (IS_HASWELL(dev
))
7857 pipe_config
->ips_enabled
= hsw_crtc_supports_ips(crtc
) &&
7858 (I915_READ(IPS_CTL
) & IPS_ENABLE
);
7860 pipe_config
->pixel_multiplier
= 1;
7868 } hdmi_audio_clock
[] = {
7869 { DIV_ROUND_UP(25200 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_25175
},
7870 { 25200, AUD_CONFIG_PIXEL_CLOCK_HDMI_25200
}, /* default per bspec */
7871 { 27000, AUD_CONFIG_PIXEL_CLOCK_HDMI_27000
},
7872 { 27000 * 1001 / 1000, AUD_CONFIG_PIXEL_CLOCK_HDMI_27027
},
7873 { 54000, AUD_CONFIG_PIXEL_CLOCK_HDMI_54000
},
7874 { 54000 * 1001 / 1000, AUD_CONFIG_PIXEL_CLOCK_HDMI_54054
},
7875 { DIV_ROUND_UP(74250 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_74176
},
7876 { 74250, AUD_CONFIG_PIXEL_CLOCK_HDMI_74250
},
7877 { DIV_ROUND_UP(148500 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_148352
},
7878 { 148500, AUD_CONFIG_PIXEL_CLOCK_HDMI_148500
},
7881 /* get AUD_CONFIG_PIXEL_CLOCK_HDMI_* value for mode */
7882 static u32
audio_config_hdmi_pixel_clock(struct drm_display_mode
*mode
)
7886 for (i
= 0; i
< ARRAY_SIZE(hdmi_audio_clock
); i
++) {
7887 if (mode
->clock
== hdmi_audio_clock
[i
].clock
)
7891 if (i
== ARRAY_SIZE(hdmi_audio_clock
)) {
7892 DRM_DEBUG_KMS("HDMI audio pixel clock setting for %d not found, falling back to defaults\n", mode
->clock
);
7896 DRM_DEBUG_KMS("Configuring HDMI audio for pixel clock %d (0x%08x)\n",
7897 hdmi_audio_clock
[i
].clock
,
7898 hdmi_audio_clock
[i
].config
);
7900 return hdmi_audio_clock
[i
].config
;
7903 static bool intel_eld_uptodate(struct drm_connector
*connector
,
7904 int reg_eldv
, uint32_t bits_eldv
,
7905 int reg_elda
, uint32_t bits_elda
,
7908 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
7909 uint8_t *eld
= connector
->eld
;
7912 i
= I915_READ(reg_eldv
);
7921 i
= I915_READ(reg_elda
);
7923 I915_WRITE(reg_elda
, i
);
7925 for (i
= 0; i
< eld
[2]; i
++)
7926 if (I915_READ(reg_edid
) != *((uint32_t *)eld
+ i
))
7932 static void g4x_write_eld(struct drm_connector
*connector
,
7933 struct drm_crtc
*crtc
,
7934 struct drm_display_mode
*mode
)
7936 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
7937 uint8_t *eld
= connector
->eld
;
7942 i
= I915_READ(G4X_AUD_VID_DID
);
7944 if (i
== INTEL_AUDIO_DEVBLC
|| i
== INTEL_AUDIO_DEVCL
)
7945 eldv
= G4X_ELDV_DEVCL_DEVBLC
;
7947 eldv
= G4X_ELDV_DEVCTG
;
7949 if (intel_eld_uptodate(connector
,
7950 G4X_AUD_CNTL_ST
, eldv
,
7951 G4X_AUD_CNTL_ST
, G4X_ELD_ADDR
,
7952 G4X_HDMIW_HDMIEDID
))
7955 i
= I915_READ(G4X_AUD_CNTL_ST
);
7956 i
&= ~(eldv
| G4X_ELD_ADDR
);
7957 len
= (i
>> 9) & 0x1f; /* ELD buffer size */
7958 I915_WRITE(G4X_AUD_CNTL_ST
, i
);
7963 len
= min_t(uint8_t, eld
[2], len
);
7964 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
7965 for (i
= 0; i
< len
; i
++)
7966 I915_WRITE(G4X_HDMIW_HDMIEDID
, *((uint32_t *)eld
+ i
));
7968 i
= I915_READ(G4X_AUD_CNTL_ST
);
7970 I915_WRITE(G4X_AUD_CNTL_ST
, i
);
7973 static void haswell_write_eld(struct drm_connector
*connector
,
7974 struct drm_crtc
*crtc
,
7975 struct drm_display_mode
*mode
)
7977 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
7978 uint8_t *eld
= connector
->eld
;
7982 int pipe
= to_intel_crtc(crtc
)->pipe
;
7985 int hdmiw_hdmiedid
= HSW_AUD_EDID_DATA(pipe
);
7986 int aud_cntl_st
= HSW_AUD_DIP_ELD_CTRL(pipe
);
7987 int aud_config
= HSW_AUD_CFG(pipe
);
7988 int aud_cntrl_st2
= HSW_AUD_PIN_ELD_CP_VLD
;
7990 /* Audio output enable */
7991 DRM_DEBUG_DRIVER("HDMI audio: enable codec\n");
7992 tmp
= I915_READ(aud_cntrl_st2
);
7993 tmp
|= (AUDIO_OUTPUT_ENABLE_A
<< (pipe
* 4));
7994 I915_WRITE(aud_cntrl_st2
, tmp
);
7995 POSTING_READ(aud_cntrl_st2
);
7997 assert_pipe_disabled(dev_priv
, to_intel_crtc(crtc
)->pipe
);
7999 /* Set ELD valid state */
8000 tmp
= I915_READ(aud_cntrl_st2
);
8001 DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%08x\n", tmp
);
8002 tmp
|= (AUDIO_ELD_VALID_A
<< (pipe
* 4));
8003 I915_WRITE(aud_cntrl_st2
, tmp
);
8004 tmp
= I915_READ(aud_cntrl_st2
);
8005 DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%08x\n", tmp
);
8007 /* Enable HDMI mode */
8008 tmp
= I915_READ(aud_config
);
8009 DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%08x\n", tmp
);
8010 /* clear N_programing_enable and N_value_index */
8011 tmp
&= ~(AUD_CONFIG_N_VALUE_INDEX
| AUD_CONFIG_N_PROG_ENABLE
);
8012 I915_WRITE(aud_config
, tmp
);
8014 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe
));
8016 eldv
= AUDIO_ELD_VALID_A
<< (pipe
* 4);
8018 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
)) {
8019 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
8020 eld
[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
8021 I915_WRITE(aud_config
, AUD_CONFIG_N_VALUE_INDEX
); /* 0x1 = DP */
8023 I915_WRITE(aud_config
, audio_config_hdmi_pixel_clock(mode
));
8026 if (intel_eld_uptodate(connector
,
8027 aud_cntrl_st2
, eldv
,
8028 aud_cntl_st
, IBX_ELD_ADDRESS
,
8032 i
= I915_READ(aud_cntrl_st2
);
8034 I915_WRITE(aud_cntrl_st2
, i
);
8039 i
= I915_READ(aud_cntl_st
);
8040 i
&= ~IBX_ELD_ADDRESS
;
8041 I915_WRITE(aud_cntl_st
, i
);
8042 i
= (i
>> 29) & DIP_PORT_SEL_MASK
; /* DIP_Port_Select, 0x1 = PortB */
8043 DRM_DEBUG_DRIVER("port num:%d\n", i
);
8045 len
= min_t(uint8_t, eld
[2], 21); /* 84 bytes of hw ELD buffer */
8046 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
8047 for (i
= 0; i
< len
; i
++)
8048 I915_WRITE(hdmiw_hdmiedid
, *((uint32_t *)eld
+ i
));
8050 i
= I915_READ(aud_cntrl_st2
);
8052 I915_WRITE(aud_cntrl_st2
, i
);
8056 static void ironlake_write_eld(struct drm_connector
*connector
,
8057 struct drm_crtc
*crtc
,
8058 struct drm_display_mode
*mode
)
8060 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
8061 uint8_t *eld
= connector
->eld
;
8069 int pipe
= to_intel_crtc(crtc
)->pipe
;
8071 if (HAS_PCH_IBX(connector
->dev
)) {
8072 hdmiw_hdmiedid
= IBX_HDMIW_HDMIEDID(pipe
);
8073 aud_config
= IBX_AUD_CFG(pipe
);
8074 aud_cntl_st
= IBX_AUD_CNTL_ST(pipe
);
8075 aud_cntrl_st2
= IBX_AUD_CNTL_ST2
;
8076 } else if (IS_VALLEYVIEW(connector
->dev
)) {
8077 hdmiw_hdmiedid
= VLV_HDMIW_HDMIEDID(pipe
);
8078 aud_config
= VLV_AUD_CFG(pipe
);
8079 aud_cntl_st
= VLV_AUD_CNTL_ST(pipe
);
8080 aud_cntrl_st2
= VLV_AUD_CNTL_ST2
;
8082 hdmiw_hdmiedid
= CPT_HDMIW_HDMIEDID(pipe
);
8083 aud_config
= CPT_AUD_CFG(pipe
);
8084 aud_cntl_st
= CPT_AUD_CNTL_ST(pipe
);
8085 aud_cntrl_st2
= CPT_AUD_CNTRL_ST2
;
8088 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe
));
8090 if (IS_VALLEYVIEW(connector
->dev
)) {
8091 struct intel_encoder
*intel_encoder
;
8092 struct intel_digital_port
*intel_dig_port
;
8094 intel_encoder
= intel_attached_encoder(connector
);
8095 intel_dig_port
= enc_to_dig_port(&intel_encoder
->base
);
8096 i
= intel_dig_port
->port
;
8098 i
= I915_READ(aud_cntl_st
);
8099 i
= (i
>> 29) & DIP_PORT_SEL_MASK
;
8100 /* DIP_Port_Select, 0x1 = PortB */
8104 DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
8105 /* operate blindly on all ports */
8106 eldv
= IBX_ELD_VALIDB
;
8107 eldv
|= IBX_ELD_VALIDB
<< 4;
8108 eldv
|= IBX_ELD_VALIDB
<< 8;
8110 DRM_DEBUG_DRIVER("ELD on port %c\n", port_name(i
));
8111 eldv
= IBX_ELD_VALIDB
<< ((i
- 1) * 4);
8114 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
)) {
8115 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
8116 eld
[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
8117 I915_WRITE(aud_config
, AUD_CONFIG_N_VALUE_INDEX
); /* 0x1 = DP */
8119 I915_WRITE(aud_config
, audio_config_hdmi_pixel_clock(mode
));
8122 if (intel_eld_uptodate(connector
,
8123 aud_cntrl_st2
, eldv
,
8124 aud_cntl_st
, IBX_ELD_ADDRESS
,
8128 i
= I915_READ(aud_cntrl_st2
);
8130 I915_WRITE(aud_cntrl_st2
, i
);
8135 i
= I915_READ(aud_cntl_st
);
8136 i
&= ~IBX_ELD_ADDRESS
;
8137 I915_WRITE(aud_cntl_st
, i
);
8139 len
= min_t(uint8_t, eld
[2], 21); /* 84 bytes of hw ELD buffer */
8140 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
8141 for (i
= 0; i
< len
; i
++)
8142 I915_WRITE(hdmiw_hdmiedid
, *((uint32_t *)eld
+ i
));
8144 i
= I915_READ(aud_cntrl_st2
);
8146 I915_WRITE(aud_cntrl_st2
, i
);
8149 void intel_write_eld(struct drm_encoder
*encoder
,
8150 struct drm_display_mode
*mode
)
8152 struct drm_crtc
*crtc
= encoder
->crtc
;
8153 struct drm_connector
*connector
;
8154 struct drm_device
*dev
= encoder
->dev
;
8155 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8157 connector
= drm_select_eld(encoder
, mode
);
8161 DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
8164 connector
->encoder
->base
.id
,
8165 connector
->encoder
->name
);
8167 connector
->eld
[6] = drm_av_sync_delay(connector
, mode
) / 2;
8169 if (dev_priv
->display
.write_eld
)
8170 dev_priv
->display
.write_eld(connector
, crtc
, mode
);
8173 static void i845_update_cursor(struct drm_crtc
*crtc
, u32 base
)
8175 struct drm_device
*dev
= crtc
->dev
;
8176 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8177 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8178 uint32_t cntl
= 0, size
= 0;
8181 unsigned int width
= intel_crtc
->cursor_width
;
8182 unsigned int height
= intel_crtc
->cursor_height
;
8183 unsigned int stride
= roundup_pow_of_two(width
) * 4;
8187 WARN_ONCE(1, "Invalid cursor width/stride, width=%u, stride=%u\n",
8198 cntl
|= CURSOR_ENABLE
|
8199 CURSOR_GAMMA_ENABLE
|
8200 CURSOR_FORMAT_ARGB
|
8201 CURSOR_STRIDE(stride
);
8203 size
= (height
<< 12) | width
;
8206 if (intel_crtc
->cursor_cntl
!= 0 &&
8207 (intel_crtc
->cursor_base
!= base
||
8208 intel_crtc
->cursor_size
!= size
||
8209 intel_crtc
->cursor_cntl
!= cntl
)) {
8210 /* On these chipsets we can only modify the base/size/stride
8211 * whilst the cursor is disabled.
8213 I915_WRITE(_CURACNTR
, 0);
8214 POSTING_READ(_CURACNTR
);
8215 intel_crtc
->cursor_cntl
= 0;
8218 if (intel_crtc
->cursor_base
!= base
) {
8219 I915_WRITE(_CURABASE
, base
);
8220 intel_crtc
->cursor_base
= base
;
8223 if (intel_crtc
->cursor_size
!= size
) {
8224 I915_WRITE(CURSIZE
, size
);
8225 intel_crtc
->cursor_size
= size
;
8228 if (intel_crtc
->cursor_cntl
!= cntl
) {
8229 I915_WRITE(_CURACNTR
, cntl
);
8230 POSTING_READ(_CURACNTR
);
8231 intel_crtc
->cursor_cntl
= cntl
;
8235 static void i9xx_update_cursor(struct drm_crtc
*crtc
, u32 base
)
8237 struct drm_device
*dev
= crtc
->dev
;
8238 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8239 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8240 int pipe
= intel_crtc
->pipe
;
8245 cntl
= MCURSOR_GAMMA_ENABLE
;
8246 switch (intel_crtc
->cursor_width
) {
8248 cntl
|= CURSOR_MODE_64_ARGB_AX
;
8251 cntl
|= CURSOR_MODE_128_ARGB_AX
;
8254 cntl
|= CURSOR_MODE_256_ARGB_AX
;
8260 cntl
|= pipe
<< 28; /* Connect to correct pipe */
8262 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
8263 cntl
|= CURSOR_PIPE_CSC_ENABLE
;
8266 if (intel_crtc
->cursor_cntl
!= cntl
) {
8267 I915_WRITE(CURCNTR(pipe
), cntl
);
8268 POSTING_READ(CURCNTR(pipe
));
8269 intel_crtc
->cursor_cntl
= cntl
;
8272 /* and commit changes on next vblank */
8273 I915_WRITE(CURBASE(pipe
), base
);
8274 POSTING_READ(CURBASE(pipe
));
8276 intel_crtc
->cursor_base
= base
;
8279 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
8280 static void intel_crtc_update_cursor(struct drm_crtc
*crtc
,
8283 struct drm_device
*dev
= crtc
->dev
;
8284 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8285 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8286 int pipe
= intel_crtc
->pipe
;
8287 int x
= crtc
->cursor_x
;
8288 int y
= crtc
->cursor_y
;
8289 u32 base
= 0, pos
= 0;
8292 base
= intel_crtc
->cursor_addr
;
8294 if (x
>= intel_crtc
->config
.pipe_src_w
)
8297 if (y
>= intel_crtc
->config
.pipe_src_h
)
8301 if (x
+ intel_crtc
->cursor_width
<= 0)
8304 pos
|= CURSOR_POS_SIGN
<< CURSOR_X_SHIFT
;
8307 pos
|= x
<< CURSOR_X_SHIFT
;
8310 if (y
+ intel_crtc
->cursor_height
<= 0)
8313 pos
|= CURSOR_POS_SIGN
<< CURSOR_Y_SHIFT
;
8316 pos
|= y
<< CURSOR_Y_SHIFT
;
8318 if (base
== 0 && intel_crtc
->cursor_base
== 0)
8321 I915_WRITE(CURPOS(pipe
), pos
);
8323 if (IS_845G(dev
) || IS_I865G(dev
))
8324 i845_update_cursor(crtc
, base
);
8326 i9xx_update_cursor(crtc
, base
);
8329 static bool cursor_size_ok(struct drm_device
*dev
,
8330 uint32_t width
, uint32_t height
)
8332 if (width
== 0 || height
== 0)
8336 * 845g/865g are special in that they are only limited by
8337 * the width of their cursors, the height is arbitrary up to
8338 * the precision of the register. Everything else requires
8339 * square cursors, limited to a few power-of-two sizes.
8341 if (IS_845G(dev
) || IS_I865G(dev
)) {
8342 if ((width
& 63) != 0)
8345 if (width
> (IS_845G(dev
) ? 64 : 512))
8351 switch (width
| height
) {
8367 * intel_crtc_cursor_set_obj - Set cursor to specified GEM object
8369 * Note that the object's reference will be consumed if the update fails. If
8370 * the update succeeds, the reference of the old object (if any) will be
8373 static int intel_crtc_cursor_set_obj(struct drm_crtc
*crtc
,
8374 struct drm_i915_gem_object
*obj
,
8375 uint32_t width
, uint32_t height
)
8377 struct drm_device
*dev
= crtc
->dev
;
8378 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8379 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8380 enum pipe pipe
= intel_crtc
->pipe
;
8381 unsigned old_width
, stride
;
8385 /* if we want to turn off the cursor ignore width and height */
8387 DRM_DEBUG_KMS("cursor off\n");
8389 mutex_lock(&dev
->struct_mutex
);
8393 /* Check for which cursor types we support */
8394 if (!cursor_size_ok(dev
, width
, height
)) {
8395 DRM_DEBUG("Cursor dimension not supported\n");
8399 stride
= roundup_pow_of_two(width
) * 4;
8400 if (obj
->base
.size
< stride
* height
) {
8401 DRM_DEBUG_KMS("buffer is too small\n");
8406 /* we only need to pin inside GTT if cursor is non-phy */
8407 mutex_lock(&dev
->struct_mutex
);
8408 if (!INTEL_INFO(dev
)->cursor_needs_physical
) {
8411 if (obj
->tiling_mode
) {
8412 DRM_DEBUG_KMS("cursor cannot be tiled\n");
8418 * Global gtt pte registers are special registers which actually
8419 * forward writes to a chunk of system memory. Which means that
8420 * there is no risk that the register values disappear as soon
8421 * as we call intel_runtime_pm_put(), so it is correct to wrap
8422 * only the pin/unpin/fence and not more.
8424 intel_runtime_pm_get(dev_priv
);
8426 /* Note that the w/a also requires 2 PTE of padding following
8427 * the bo. We currently fill all unused PTE with the shadow
8428 * page and so we should always have valid PTE following the
8429 * cursor preventing the VT-d warning.
8432 if (need_vtd_wa(dev
))
8433 alignment
= 64*1024;
8435 ret
= i915_gem_object_pin_to_display_plane(obj
, alignment
, NULL
);
8437 DRM_DEBUG_KMS("failed to move cursor bo into the GTT\n");
8438 intel_runtime_pm_put(dev_priv
);
8442 ret
= i915_gem_object_put_fence(obj
);
8444 DRM_DEBUG_KMS("failed to release fence for cursor");
8445 intel_runtime_pm_put(dev_priv
);
8449 addr
= i915_gem_obj_ggtt_offset(obj
);
8451 intel_runtime_pm_put(dev_priv
);
8453 int align
= IS_I830(dev
) ? 16 * 1024 : 256;
8454 ret
= i915_gem_object_attach_phys(obj
, align
);
8456 DRM_DEBUG_KMS("failed to attach phys object\n");
8459 addr
= obj
->phys_handle
->busaddr
;
8463 if (intel_crtc
->cursor_bo
) {
8464 if (!INTEL_INFO(dev
)->cursor_needs_physical
)
8465 i915_gem_object_unpin_from_display_plane(intel_crtc
->cursor_bo
);
8468 i915_gem_track_fb(intel_crtc
->cursor_bo
, obj
,
8469 INTEL_FRONTBUFFER_CURSOR(pipe
));
8470 mutex_unlock(&dev
->struct_mutex
);
8472 old_width
= intel_crtc
->cursor_width
;
8474 intel_crtc
->cursor_addr
= addr
;
8475 intel_crtc
->cursor_bo
= obj
;
8476 intel_crtc
->cursor_width
= width
;
8477 intel_crtc
->cursor_height
= height
;
8479 if (intel_crtc
->active
) {
8480 if (old_width
!= width
)
8481 intel_update_watermarks(crtc
);
8482 intel_crtc_update_cursor(crtc
, intel_crtc
->cursor_bo
!= NULL
);
8485 intel_frontbuffer_flip(dev
, INTEL_FRONTBUFFER_CURSOR(pipe
));
8489 i915_gem_object_unpin_from_display_plane(obj
);
8491 mutex_unlock(&dev
->struct_mutex
);
8493 drm_gem_object_unreference_unlocked(&obj
->base
);
8497 static void intel_crtc_gamma_set(struct drm_crtc
*crtc
, u16
*red
, u16
*green
,
8498 u16
*blue
, uint32_t start
, uint32_t size
)
8500 int end
= (start
+ size
> 256) ? 256 : start
+ size
, i
;
8501 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8503 for (i
= start
; i
< end
; i
++) {
8504 intel_crtc
->lut_r
[i
] = red
[i
] >> 8;
8505 intel_crtc
->lut_g
[i
] = green
[i
] >> 8;
8506 intel_crtc
->lut_b
[i
] = blue
[i
] >> 8;
8509 intel_crtc_load_lut(crtc
);
8512 /* VESA 640x480x72Hz mode to set on the pipe */
8513 static struct drm_display_mode load_detect_mode
= {
8514 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT
, 31500, 640, 664,
8515 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
8518 struct drm_framebuffer
*
8519 __intel_framebuffer_create(struct drm_device
*dev
,
8520 struct drm_mode_fb_cmd2
*mode_cmd
,
8521 struct drm_i915_gem_object
*obj
)
8523 struct intel_framebuffer
*intel_fb
;
8526 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
8528 drm_gem_object_unreference_unlocked(&obj
->base
);
8529 return ERR_PTR(-ENOMEM
);
8532 ret
= intel_framebuffer_init(dev
, intel_fb
, mode_cmd
, obj
);
8536 return &intel_fb
->base
;
8538 drm_gem_object_unreference_unlocked(&obj
->base
);
8541 return ERR_PTR(ret
);
8544 static struct drm_framebuffer
*
8545 intel_framebuffer_create(struct drm_device
*dev
,
8546 struct drm_mode_fb_cmd2
*mode_cmd
,
8547 struct drm_i915_gem_object
*obj
)
8549 struct drm_framebuffer
*fb
;
8552 ret
= i915_mutex_lock_interruptible(dev
);
8554 return ERR_PTR(ret
);
8555 fb
= __intel_framebuffer_create(dev
, mode_cmd
, obj
);
8556 mutex_unlock(&dev
->struct_mutex
);
8562 intel_framebuffer_pitch_for_width(int width
, int bpp
)
8564 u32 pitch
= DIV_ROUND_UP(width
* bpp
, 8);
8565 return ALIGN(pitch
, 64);
8569 intel_framebuffer_size_for_mode(struct drm_display_mode
*mode
, int bpp
)
8571 u32 pitch
= intel_framebuffer_pitch_for_width(mode
->hdisplay
, bpp
);
8572 return PAGE_ALIGN(pitch
* mode
->vdisplay
);
8575 static struct drm_framebuffer
*
8576 intel_framebuffer_create_for_mode(struct drm_device
*dev
,
8577 struct drm_display_mode
*mode
,
8580 struct drm_i915_gem_object
*obj
;
8581 struct drm_mode_fb_cmd2 mode_cmd
= { 0 };
8583 obj
= i915_gem_alloc_object(dev
,
8584 intel_framebuffer_size_for_mode(mode
, bpp
));
8586 return ERR_PTR(-ENOMEM
);
8588 mode_cmd
.width
= mode
->hdisplay
;
8589 mode_cmd
.height
= mode
->vdisplay
;
8590 mode_cmd
.pitches
[0] = intel_framebuffer_pitch_for_width(mode_cmd
.width
,
8592 mode_cmd
.pixel_format
= drm_mode_legacy_fb_format(bpp
, depth
);
8594 return intel_framebuffer_create(dev
, &mode_cmd
, obj
);
8597 static struct drm_framebuffer
*
8598 mode_fits_in_fbdev(struct drm_device
*dev
,
8599 struct drm_display_mode
*mode
)
8601 #ifdef CONFIG_DRM_I915_FBDEV
8602 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8603 struct drm_i915_gem_object
*obj
;
8604 struct drm_framebuffer
*fb
;
8606 if (!dev_priv
->fbdev
)
8609 if (!dev_priv
->fbdev
->fb
)
8612 obj
= dev_priv
->fbdev
->fb
->obj
;
8615 fb
= &dev_priv
->fbdev
->fb
->base
;
8616 if (fb
->pitches
[0] < intel_framebuffer_pitch_for_width(mode
->hdisplay
,
8617 fb
->bits_per_pixel
))
8620 if (obj
->base
.size
< mode
->vdisplay
* fb
->pitches
[0])
8629 bool intel_get_load_detect_pipe(struct drm_connector
*connector
,
8630 struct drm_display_mode
*mode
,
8631 struct intel_load_detect_pipe
*old
,
8632 struct drm_modeset_acquire_ctx
*ctx
)
8634 struct intel_crtc
*intel_crtc
;
8635 struct intel_encoder
*intel_encoder
=
8636 intel_attached_encoder(connector
);
8637 struct drm_crtc
*possible_crtc
;
8638 struct drm_encoder
*encoder
= &intel_encoder
->base
;
8639 struct drm_crtc
*crtc
= NULL
;
8640 struct drm_device
*dev
= encoder
->dev
;
8641 struct drm_framebuffer
*fb
;
8642 struct drm_mode_config
*config
= &dev
->mode_config
;
8645 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
8646 connector
->base
.id
, connector
->name
,
8647 encoder
->base
.id
, encoder
->name
);
8650 ret
= drm_modeset_lock(&config
->connection_mutex
, ctx
);
8655 * Algorithm gets a little messy:
8657 * - if the connector already has an assigned crtc, use it (but make
8658 * sure it's on first)
8660 * - try to find the first unused crtc that can drive this connector,
8661 * and use that if we find one
8664 /* See if we already have a CRTC for this connector */
8665 if (encoder
->crtc
) {
8666 crtc
= encoder
->crtc
;
8668 ret
= drm_modeset_lock(&crtc
->mutex
, ctx
);
8672 old
->dpms_mode
= connector
->dpms
;
8673 old
->load_detect_temp
= false;
8675 /* Make sure the crtc and connector are running */
8676 if (connector
->dpms
!= DRM_MODE_DPMS_ON
)
8677 connector
->funcs
->dpms(connector
, DRM_MODE_DPMS_ON
);
8682 /* Find an unused one (if possible) */
8683 for_each_crtc(dev
, possible_crtc
) {
8685 if (!(encoder
->possible_crtcs
& (1 << i
)))
8687 if (possible_crtc
->enabled
)
8689 /* This can occur when applying the pipe A quirk on resume. */
8690 if (to_intel_crtc(possible_crtc
)->new_enabled
)
8693 crtc
= possible_crtc
;
8698 * If we didn't find an unused CRTC, don't use any.
8701 DRM_DEBUG_KMS("no pipe available for load-detect\n");
8705 ret
= drm_modeset_lock(&crtc
->mutex
, ctx
);
8708 intel_encoder
->new_crtc
= to_intel_crtc(crtc
);
8709 to_intel_connector(connector
)->new_encoder
= intel_encoder
;
8711 intel_crtc
= to_intel_crtc(crtc
);
8712 intel_crtc
->new_enabled
= true;
8713 intel_crtc
->new_config
= &intel_crtc
->config
;
8714 old
->dpms_mode
= connector
->dpms
;
8715 old
->load_detect_temp
= true;
8716 old
->release_fb
= NULL
;
8719 mode
= &load_detect_mode
;
8721 /* We need a framebuffer large enough to accommodate all accesses
8722 * that the plane may generate whilst we perform load detection.
8723 * We can not rely on the fbcon either being present (we get called
8724 * during its initialisation to detect all boot displays, or it may
8725 * not even exist) or that it is large enough to satisfy the
8728 fb
= mode_fits_in_fbdev(dev
, mode
);
8730 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
8731 fb
= intel_framebuffer_create_for_mode(dev
, mode
, 24, 32);
8732 old
->release_fb
= fb
;
8734 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
8736 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
8740 if (intel_set_mode(crtc
, mode
, 0, 0, fb
)) {
8741 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
8742 if (old
->release_fb
)
8743 old
->release_fb
->funcs
->destroy(old
->release_fb
);
8747 /* let the connector get through one full cycle before testing */
8748 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
8752 intel_crtc
->new_enabled
= crtc
->enabled
;
8753 if (intel_crtc
->new_enabled
)
8754 intel_crtc
->new_config
= &intel_crtc
->config
;
8756 intel_crtc
->new_config
= NULL
;
8758 if (ret
== -EDEADLK
) {
8759 drm_modeset_backoff(ctx
);
8766 void intel_release_load_detect_pipe(struct drm_connector
*connector
,
8767 struct intel_load_detect_pipe
*old
)
8769 struct intel_encoder
*intel_encoder
=
8770 intel_attached_encoder(connector
);
8771 struct drm_encoder
*encoder
= &intel_encoder
->base
;
8772 struct drm_crtc
*crtc
= encoder
->crtc
;
8773 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8775 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
8776 connector
->base
.id
, connector
->name
,
8777 encoder
->base
.id
, encoder
->name
);
8779 if (old
->load_detect_temp
) {
8780 to_intel_connector(connector
)->new_encoder
= NULL
;
8781 intel_encoder
->new_crtc
= NULL
;
8782 intel_crtc
->new_enabled
= false;
8783 intel_crtc
->new_config
= NULL
;
8784 intel_set_mode(crtc
, NULL
, 0, 0, NULL
);
8786 if (old
->release_fb
) {
8787 drm_framebuffer_unregister_private(old
->release_fb
);
8788 drm_framebuffer_unreference(old
->release_fb
);
8794 /* Switch crtc and encoder back off if necessary */
8795 if (old
->dpms_mode
!= DRM_MODE_DPMS_ON
)
8796 connector
->funcs
->dpms(connector
, old
->dpms_mode
);
8799 static int i9xx_pll_refclk(struct drm_device
*dev
,
8800 const struct intel_crtc_config
*pipe_config
)
8802 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8803 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
8805 if ((dpll
& PLL_REF_INPUT_MASK
) == PLLB_REF_INPUT_SPREADSPECTRUMIN
)
8806 return dev_priv
->vbt
.lvds_ssc_freq
;
8807 else if (HAS_PCH_SPLIT(dev
))
8809 else if (!IS_GEN2(dev
))
8815 /* Returns the clock of the currently programmed mode of the given pipe. */
8816 static void i9xx_crtc_clock_get(struct intel_crtc
*crtc
,
8817 struct intel_crtc_config
*pipe_config
)
8819 struct drm_device
*dev
= crtc
->base
.dev
;
8820 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8821 int pipe
= pipe_config
->cpu_transcoder
;
8822 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
8824 intel_clock_t clock
;
8825 int refclk
= i9xx_pll_refclk(dev
, pipe_config
);
8827 if ((dpll
& DISPLAY_RATE_SELECT_FPA1
) == 0)
8828 fp
= pipe_config
->dpll_hw_state
.fp0
;
8830 fp
= pipe_config
->dpll_hw_state
.fp1
;
8832 clock
.m1
= (fp
& FP_M1_DIV_MASK
) >> FP_M1_DIV_SHIFT
;
8833 if (IS_PINEVIEW(dev
)) {
8834 clock
.n
= ffs((fp
& FP_N_PINEVIEW_DIV_MASK
) >> FP_N_DIV_SHIFT
) - 1;
8835 clock
.m2
= (fp
& FP_M2_PINEVIEW_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
8837 clock
.n
= (fp
& FP_N_DIV_MASK
) >> FP_N_DIV_SHIFT
;
8838 clock
.m2
= (fp
& FP_M2_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
8841 if (!IS_GEN2(dev
)) {
8842 if (IS_PINEVIEW(dev
))
8843 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW
) >>
8844 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
);
8846 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK
) >>
8847 DPLL_FPA01_P1_POST_DIV_SHIFT
);
8849 switch (dpll
& DPLL_MODE_MASK
) {
8850 case DPLLB_MODE_DAC_SERIAL
:
8851 clock
.p2
= dpll
& DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
?
8854 case DPLLB_MODE_LVDS
:
8855 clock
.p2
= dpll
& DPLLB_LVDS_P2_CLOCK_DIV_7
?
8859 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
8860 "mode\n", (int)(dpll
& DPLL_MODE_MASK
));
8864 if (IS_PINEVIEW(dev
))
8865 pineview_clock(refclk
, &clock
);
8867 i9xx_clock(refclk
, &clock
);
8869 u32 lvds
= IS_I830(dev
) ? 0 : I915_READ(LVDS
);
8870 bool is_lvds
= (pipe
== 1) && (lvds
& LVDS_PORT_EN
);
8873 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS
) >>
8874 DPLL_FPA01_P1_POST_DIV_SHIFT
);
8876 if (lvds
& LVDS_CLKB_POWER_UP
)
8881 if (dpll
& PLL_P1_DIVIDE_BY_TWO
)
8884 clock
.p1
= ((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830
) >>
8885 DPLL_FPA01_P1_POST_DIV_SHIFT
) + 2;
8887 if (dpll
& PLL_P2_DIVIDE_BY_4
)
8893 i9xx_clock(refclk
, &clock
);
8897 * This value includes pixel_multiplier. We will use
8898 * port_clock to compute adjusted_mode.crtc_clock in the
8899 * encoder's get_config() function.
8901 pipe_config
->port_clock
= clock
.dot
;
8904 int intel_dotclock_calculate(int link_freq
,
8905 const struct intel_link_m_n
*m_n
)
8908 * The calculation for the data clock is:
8909 * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp
8910 * But we want to avoid losing precison if possible, so:
8911 * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp))
8913 * and the link clock is simpler:
8914 * link_clock = (m * link_clock) / n
8920 return div_u64((u64
)m_n
->link_m
* link_freq
, m_n
->link_n
);
8923 static void ironlake_pch_clock_get(struct intel_crtc
*crtc
,
8924 struct intel_crtc_config
*pipe_config
)
8926 struct drm_device
*dev
= crtc
->base
.dev
;
8928 /* read out port_clock from the DPLL */
8929 i9xx_crtc_clock_get(crtc
, pipe_config
);
8932 * This value does not include pixel_multiplier.
8933 * We will check that port_clock and adjusted_mode.crtc_clock
8934 * agree once we know their relationship in the encoder's
8935 * get_config() function.
8937 pipe_config
->adjusted_mode
.crtc_clock
=
8938 intel_dotclock_calculate(intel_fdi_link_freq(dev
) * 10000,
8939 &pipe_config
->fdi_m_n
);
8942 /** Returns the currently programmed mode of the given pipe. */
8943 struct drm_display_mode
*intel_crtc_mode_get(struct drm_device
*dev
,
8944 struct drm_crtc
*crtc
)
8946 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8947 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8948 enum transcoder cpu_transcoder
= intel_crtc
->config
.cpu_transcoder
;
8949 struct drm_display_mode
*mode
;
8950 struct intel_crtc_config pipe_config
;
8951 int htot
= I915_READ(HTOTAL(cpu_transcoder
));
8952 int hsync
= I915_READ(HSYNC(cpu_transcoder
));
8953 int vtot
= I915_READ(VTOTAL(cpu_transcoder
));
8954 int vsync
= I915_READ(VSYNC(cpu_transcoder
));
8955 enum pipe pipe
= intel_crtc
->pipe
;
8957 mode
= kzalloc(sizeof(*mode
), GFP_KERNEL
);
8962 * Construct a pipe_config sufficient for getting the clock info
8963 * back out of crtc_clock_get.
8965 * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need
8966 * to use a real value here instead.
8968 pipe_config
.cpu_transcoder
= (enum transcoder
) pipe
;
8969 pipe_config
.pixel_multiplier
= 1;
8970 pipe_config
.dpll_hw_state
.dpll
= I915_READ(DPLL(pipe
));
8971 pipe_config
.dpll_hw_state
.fp0
= I915_READ(FP0(pipe
));
8972 pipe_config
.dpll_hw_state
.fp1
= I915_READ(FP1(pipe
));
8973 i9xx_crtc_clock_get(intel_crtc
, &pipe_config
);
8975 mode
->clock
= pipe_config
.port_clock
/ pipe_config
.pixel_multiplier
;
8976 mode
->hdisplay
= (htot
& 0xffff) + 1;
8977 mode
->htotal
= ((htot
& 0xffff0000) >> 16) + 1;
8978 mode
->hsync_start
= (hsync
& 0xffff) + 1;
8979 mode
->hsync_end
= ((hsync
& 0xffff0000) >> 16) + 1;
8980 mode
->vdisplay
= (vtot
& 0xffff) + 1;
8981 mode
->vtotal
= ((vtot
& 0xffff0000) >> 16) + 1;
8982 mode
->vsync_start
= (vsync
& 0xffff) + 1;
8983 mode
->vsync_end
= ((vsync
& 0xffff0000) >> 16) + 1;
8985 drm_mode_set_name(mode
);
8990 static void intel_increase_pllclock(struct drm_device
*dev
,
8993 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8994 int dpll_reg
= DPLL(pipe
);
8997 if (!HAS_GMCH_DISPLAY(dev
))
9000 if (!dev_priv
->lvds_downclock_avail
)
9003 dpll
= I915_READ(dpll_reg
);
9004 if (!HAS_PIPE_CXSR(dev
) && (dpll
& DISPLAY_RATE_SELECT_FPA1
)) {
9005 DRM_DEBUG_DRIVER("upclocking LVDS\n");
9007 assert_panel_unlocked(dev_priv
, pipe
);
9009 dpll
&= ~DISPLAY_RATE_SELECT_FPA1
;
9010 I915_WRITE(dpll_reg
, dpll
);
9011 intel_wait_for_vblank(dev
, pipe
);
9013 dpll
= I915_READ(dpll_reg
);
9014 if (dpll
& DISPLAY_RATE_SELECT_FPA1
)
9015 DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
9019 static void intel_decrease_pllclock(struct drm_crtc
*crtc
)
9021 struct drm_device
*dev
= crtc
->dev
;
9022 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9023 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9025 if (!HAS_GMCH_DISPLAY(dev
))
9028 if (!dev_priv
->lvds_downclock_avail
)
9032 * Since this is called by a timer, we should never get here in
9035 if (!HAS_PIPE_CXSR(dev
) && intel_crtc
->lowfreq_avail
) {
9036 int pipe
= intel_crtc
->pipe
;
9037 int dpll_reg
= DPLL(pipe
);
9040 DRM_DEBUG_DRIVER("downclocking LVDS\n");
9042 assert_panel_unlocked(dev_priv
, pipe
);
9044 dpll
= I915_READ(dpll_reg
);
9045 dpll
|= DISPLAY_RATE_SELECT_FPA1
;
9046 I915_WRITE(dpll_reg
, dpll
);
9047 intel_wait_for_vblank(dev
, pipe
);
9048 dpll
= I915_READ(dpll_reg
);
9049 if (!(dpll
& DISPLAY_RATE_SELECT_FPA1
))
9050 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
9055 void intel_mark_busy(struct drm_device
*dev
)
9057 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9059 if (dev_priv
->mm
.busy
)
9062 intel_runtime_pm_get(dev_priv
);
9063 i915_update_gfx_val(dev_priv
);
9064 dev_priv
->mm
.busy
= true;
9067 void intel_mark_idle(struct drm_device
*dev
)
9069 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9070 struct drm_crtc
*crtc
;
9072 if (!dev_priv
->mm
.busy
)
9075 dev_priv
->mm
.busy
= false;
9077 if (!i915
.powersave
)
9080 for_each_crtc(dev
, crtc
) {
9081 if (!crtc
->primary
->fb
)
9084 intel_decrease_pllclock(crtc
);
9087 if (INTEL_INFO(dev
)->gen
>= 6)
9088 gen6_rps_idle(dev
->dev_private
);
9091 intel_runtime_pm_put(dev_priv
);
9096 * intel_mark_fb_busy - mark given planes as busy
9098 * @frontbuffer_bits: bits for the affected planes
9099 * @ring: optional ring for asynchronous commands
9101 * This function gets called every time the screen contents change. It can be
9102 * used to keep e.g. the update rate at the nominal refresh rate with DRRS.
9104 static void intel_mark_fb_busy(struct drm_device
*dev
,
9105 unsigned frontbuffer_bits
,
9106 struct intel_engine_cs
*ring
)
9108 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9111 if (!i915
.powersave
)
9114 for_each_pipe(dev_priv
, pipe
) {
9115 if (!(frontbuffer_bits
& INTEL_FRONTBUFFER_ALL_MASK(pipe
)))
9118 intel_increase_pllclock(dev
, pipe
);
9119 if (ring
&& intel_fbc_enabled(dev
))
9120 ring
->fbc_dirty
= true;
9125 * intel_fb_obj_invalidate - invalidate frontbuffer object
9126 * @obj: GEM object to invalidate
9127 * @ring: set for asynchronous rendering
9129 * This function gets called every time rendering on the given object starts and
9130 * frontbuffer caching (fbc, low refresh rate for DRRS, panel self refresh) must
9131 * be invalidated. If @ring is non-NULL any subsequent invalidation will be delayed
9132 * until the rendering completes or a flip on this frontbuffer plane is
9135 void intel_fb_obj_invalidate(struct drm_i915_gem_object
*obj
,
9136 struct intel_engine_cs
*ring
)
9138 struct drm_device
*dev
= obj
->base
.dev
;
9139 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9141 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
9143 if (!obj
->frontbuffer_bits
)
9147 mutex_lock(&dev_priv
->fb_tracking
.lock
);
9148 dev_priv
->fb_tracking
.busy_bits
9149 |= obj
->frontbuffer_bits
;
9150 dev_priv
->fb_tracking
.flip_bits
9151 &= ~obj
->frontbuffer_bits
;
9152 mutex_unlock(&dev_priv
->fb_tracking
.lock
);
9155 intel_mark_fb_busy(dev
, obj
->frontbuffer_bits
, ring
);
9157 intel_edp_psr_invalidate(dev
, obj
->frontbuffer_bits
);
9161 * intel_frontbuffer_flush - flush frontbuffer
9163 * @frontbuffer_bits: frontbuffer plane tracking bits
9165 * This function gets called every time rendering on the given planes has
9166 * completed and frontbuffer caching can be started again. Flushes will get
9167 * delayed if they're blocked by some oustanding asynchronous rendering.
9169 * Can be called without any locks held.
9171 void intel_frontbuffer_flush(struct drm_device
*dev
,
9172 unsigned frontbuffer_bits
)
9174 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9176 /* Delay flushing when rings are still busy.*/
9177 mutex_lock(&dev_priv
->fb_tracking
.lock
);
9178 frontbuffer_bits
&= ~dev_priv
->fb_tracking
.busy_bits
;
9179 mutex_unlock(&dev_priv
->fb_tracking
.lock
);
9181 intel_mark_fb_busy(dev
, frontbuffer_bits
, NULL
);
9183 intel_edp_psr_flush(dev
, frontbuffer_bits
);
9186 * FIXME: Unconditional fbc flushing here is a rather gross hack and
9187 * needs to be reworked into a proper frontbuffer tracking scheme like
9190 if (IS_BROADWELL(dev
))
9191 gen8_fbc_sw_flush(dev
, FBC_REND_CACHE_CLEAN
);
9195 * intel_fb_obj_flush - flush frontbuffer object
9196 * @obj: GEM object to flush
9197 * @retire: set when retiring asynchronous rendering
9199 * This function gets called every time rendering on the given object has
9200 * completed and frontbuffer caching can be started again. If @retire is true
9201 * then any delayed flushes will be unblocked.
9203 void intel_fb_obj_flush(struct drm_i915_gem_object
*obj
,
9206 struct drm_device
*dev
= obj
->base
.dev
;
9207 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9208 unsigned frontbuffer_bits
;
9210 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
9212 if (!obj
->frontbuffer_bits
)
9215 frontbuffer_bits
= obj
->frontbuffer_bits
;
9218 mutex_lock(&dev_priv
->fb_tracking
.lock
);
9219 /* Filter out new bits since rendering started. */
9220 frontbuffer_bits
&= dev_priv
->fb_tracking
.busy_bits
;
9222 dev_priv
->fb_tracking
.busy_bits
&= ~frontbuffer_bits
;
9223 mutex_unlock(&dev_priv
->fb_tracking
.lock
);
9226 intel_frontbuffer_flush(dev
, frontbuffer_bits
);
9230 * intel_frontbuffer_flip_prepare - prepare asnychronous frontbuffer flip
9232 * @frontbuffer_bits: frontbuffer plane tracking bits
9234 * This function gets called after scheduling a flip on @obj. The actual
9235 * frontbuffer flushing will be delayed until completion is signalled with
9236 * intel_frontbuffer_flip_complete. If an invalidate happens in between this
9237 * flush will be cancelled.
9239 * Can be called without any locks held.
9241 void intel_frontbuffer_flip_prepare(struct drm_device
*dev
,
9242 unsigned frontbuffer_bits
)
9244 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9246 mutex_lock(&dev_priv
->fb_tracking
.lock
);
9247 dev_priv
->fb_tracking
.flip_bits
9248 |= frontbuffer_bits
;
9249 mutex_unlock(&dev_priv
->fb_tracking
.lock
);
9253 * intel_frontbuffer_flip_complete - complete asynchronous frontbuffer flush
9255 * @frontbuffer_bits: frontbuffer plane tracking bits
9257 * This function gets called after the flip has been latched and will complete
9258 * on the next vblank. It will execute the fush if it hasn't been cancalled yet.
9260 * Can be called without any locks held.
9262 void intel_frontbuffer_flip_complete(struct drm_device
*dev
,
9263 unsigned frontbuffer_bits
)
9265 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9267 mutex_lock(&dev_priv
->fb_tracking
.lock
);
9268 /* Mask any cancelled flips. */
9269 frontbuffer_bits
&= dev_priv
->fb_tracking
.flip_bits
;
9270 dev_priv
->fb_tracking
.flip_bits
&= ~frontbuffer_bits
;
9271 mutex_unlock(&dev_priv
->fb_tracking
.lock
);
9273 intel_frontbuffer_flush(dev
, frontbuffer_bits
);
9276 static void intel_crtc_destroy(struct drm_crtc
*crtc
)
9278 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9279 struct drm_device
*dev
= crtc
->dev
;
9280 struct intel_unpin_work
*work
;
9282 spin_lock_irq(&dev
->event_lock
);
9283 work
= intel_crtc
->unpin_work
;
9284 intel_crtc
->unpin_work
= NULL
;
9285 spin_unlock_irq(&dev
->event_lock
);
9288 cancel_work_sync(&work
->work
);
9292 drm_crtc_cleanup(crtc
);
9297 static void intel_unpin_work_fn(struct work_struct
*__work
)
9299 struct intel_unpin_work
*work
=
9300 container_of(__work
, struct intel_unpin_work
, work
);
9301 struct drm_device
*dev
= work
->crtc
->dev
;
9302 enum pipe pipe
= to_intel_crtc(work
->crtc
)->pipe
;
9304 mutex_lock(&dev
->struct_mutex
);
9305 intel_unpin_fb_obj(work
->old_fb_obj
);
9306 drm_gem_object_unreference(&work
->pending_flip_obj
->base
);
9307 drm_gem_object_unreference(&work
->old_fb_obj
->base
);
9309 intel_update_fbc(dev
);
9310 mutex_unlock(&dev
->struct_mutex
);
9312 intel_frontbuffer_flip_complete(dev
, INTEL_FRONTBUFFER_PRIMARY(pipe
));
9314 BUG_ON(atomic_read(&to_intel_crtc(work
->crtc
)->unpin_work_count
) == 0);
9315 atomic_dec(&to_intel_crtc(work
->crtc
)->unpin_work_count
);
9320 static void do_intel_finish_page_flip(struct drm_device
*dev
,
9321 struct drm_crtc
*crtc
)
9323 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9324 struct intel_unpin_work
*work
;
9325 unsigned long flags
;
9327 /* Ignore early vblank irqs */
9328 if (intel_crtc
== NULL
)
9331 spin_lock_irqsave(&dev
->event_lock
, flags
);
9332 work
= intel_crtc
->unpin_work
;
9334 /* Ensure we don't miss a work->pending update ... */
9337 if (work
== NULL
|| atomic_read(&work
->pending
) < INTEL_FLIP_COMPLETE
) {
9338 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9342 page_flip_completed(intel_crtc
);
9344 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9347 void intel_finish_page_flip(struct drm_device
*dev
, int pipe
)
9349 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9350 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
9352 do_intel_finish_page_flip(dev
, crtc
);
9355 void intel_finish_page_flip_plane(struct drm_device
*dev
, int plane
)
9357 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9358 struct drm_crtc
*crtc
= dev_priv
->plane_to_crtc_mapping
[plane
];
9360 do_intel_finish_page_flip(dev
, crtc
);
9363 /* Is 'a' after or equal to 'b'? */
9364 static bool g4x_flip_count_after_eq(u32 a
, u32 b
)
9366 return !((a
- b
) & 0x80000000);
9369 static bool page_flip_finished(struct intel_crtc
*crtc
)
9371 struct drm_device
*dev
= crtc
->base
.dev
;
9372 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9375 * The relevant registers doen't exist on pre-ctg.
9376 * As the flip done interrupt doesn't trigger for mmio
9377 * flips on gmch platforms, a flip count check isn't
9378 * really needed there. But since ctg has the registers,
9379 * include it in the check anyway.
9381 if (INTEL_INFO(dev
)->gen
< 5 && !IS_G4X(dev
))
9385 * A DSPSURFLIVE check isn't enough in case the mmio and CS flips
9386 * used the same base address. In that case the mmio flip might
9387 * have completed, but the CS hasn't even executed the flip yet.
9389 * A flip count check isn't enough as the CS might have updated
9390 * the base address just after start of vblank, but before we
9391 * managed to process the interrupt. This means we'd complete the
9394 * Combining both checks should get us a good enough result. It may
9395 * still happen that the CS flip has been executed, but has not
9396 * yet actually completed. But in case the base address is the same
9397 * anyway, we don't really care.
9399 return (I915_READ(DSPSURFLIVE(crtc
->plane
)) & ~0xfff) ==
9400 crtc
->unpin_work
->gtt_offset
&&
9401 g4x_flip_count_after_eq(I915_READ(PIPE_FLIPCOUNT_GM45(crtc
->pipe
)),
9402 crtc
->unpin_work
->flip_count
);
9405 void intel_prepare_page_flip(struct drm_device
*dev
, int plane
)
9407 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9408 struct intel_crtc
*intel_crtc
=
9409 to_intel_crtc(dev_priv
->plane_to_crtc_mapping
[plane
]);
9410 unsigned long flags
;
9412 /* NB: An MMIO update of the plane base pointer will also
9413 * generate a page-flip completion irq, i.e. every modeset
9414 * is also accompanied by a spurious intel_prepare_page_flip().
9416 spin_lock_irqsave(&dev
->event_lock
, flags
);
9417 if (intel_crtc
->unpin_work
&& page_flip_finished(intel_crtc
))
9418 atomic_inc_not_zero(&intel_crtc
->unpin_work
->pending
);
9419 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9422 static inline void intel_mark_page_flip_active(struct intel_crtc
*intel_crtc
)
9424 /* Ensure that the work item is consistent when activating it ... */
9426 atomic_set(&intel_crtc
->unpin_work
->pending
, INTEL_FLIP_PENDING
);
9427 /* and that it is marked active as soon as the irq could fire. */
9431 static int intel_gen2_queue_flip(struct drm_device
*dev
,
9432 struct drm_crtc
*crtc
,
9433 struct drm_framebuffer
*fb
,
9434 struct drm_i915_gem_object
*obj
,
9435 struct intel_engine_cs
*ring
,
9438 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9442 ret
= intel_ring_begin(ring
, 6);
9446 /* Can't queue multiple flips, so wait for the previous
9447 * one to finish before executing the next.
9449 if (intel_crtc
->plane
)
9450 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
9452 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
9453 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
9454 intel_ring_emit(ring
, MI_NOOP
);
9455 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
9456 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
9457 intel_ring_emit(ring
, fb
->pitches
[0]);
9458 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9459 intel_ring_emit(ring
, 0); /* aux display base address, unused */
9461 intel_mark_page_flip_active(intel_crtc
);
9462 __intel_ring_advance(ring
);
9466 static int intel_gen3_queue_flip(struct drm_device
*dev
,
9467 struct drm_crtc
*crtc
,
9468 struct drm_framebuffer
*fb
,
9469 struct drm_i915_gem_object
*obj
,
9470 struct intel_engine_cs
*ring
,
9473 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9477 ret
= intel_ring_begin(ring
, 6);
9481 if (intel_crtc
->plane
)
9482 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
9484 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
9485 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
9486 intel_ring_emit(ring
, MI_NOOP
);
9487 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
|
9488 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
9489 intel_ring_emit(ring
, fb
->pitches
[0]);
9490 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9491 intel_ring_emit(ring
, MI_NOOP
);
9493 intel_mark_page_flip_active(intel_crtc
);
9494 __intel_ring_advance(ring
);
9498 static int intel_gen4_queue_flip(struct drm_device
*dev
,
9499 struct drm_crtc
*crtc
,
9500 struct drm_framebuffer
*fb
,
9501 struct drm_i915_gem_object
*obj
,
9502 struct intel_engine_cs
*ring
,
9505 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9506 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9507 uint32_t pf
, pipesrc
;
9510 ret
= intel_ring_begin(ring
, 4);
9514 /* i965+ uses the linear or tiled offsets from the
9515 * Display Registers (which do not change across a page-flip)
9516 * so we need only reprogram the base address.
9518 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
9519 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
9520 intel_ring_emit(ring
, fb
->pitches
[0]);
9521 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
|
9524 /* XXX Enabling the panel-fitter across page-flip is so far
9525 * untested on non-native modes, so ignore it for now.
9526 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
9529 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
9530 intel_ring_emit(ring
, pf
| pipesrc
);
9532 intel_mark_page_flip_active(intel_crtc
);
9533 __intel_ring_advance(ring
);
9537 static int intel_gen6_queue_flip(struct drm_device
*dev
,
9538 struct drm_crtc
*crtc
,
9539 struct drm_framebuffer
*fb
,
9540 struct drm_i915_gem_object
*obj
,
9541 struct intel_engine_cs
*ring
,
9544 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9545 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9546 uint32_t pf
, pipesrc
;
9549 ret
= intel_ring_begin(ring
, 4);
9553 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
9554 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
9555 intel_ring_emit(ring
, fb
->pitches
[0] | obj
->tiling_mode
);
9556 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9558 /* Contrary to the suggestions in the documentation,
9559 * "Enable Panel Fitter" does not seem to be required when page
9560 * flipping with a non-native mode, and worse causes a normal
9562 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
9565 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
9566 intel_ring_emit(ring
, pf
| pipesrc
);
9568 intel_mark_page_flip_active(intel_crtc
);
9569 __intel_ring_advance(ring
);
9573 static int intel_gen7_queue_flip(struct drm_device
*dev
,
9574 struct drm_crtc
*crtc
,
9575 struct drm_framebuffer
*fb
,
9576 struct drm_i915_gem_object
*obj
,
9577 struct intel_engine_cs
*ring
,
9580 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9581 uint32_t plane_bit
= 0;
9584 switch (intel_crtc
->plane
) {
9586 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_A
;
9589 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_B
;
9592 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_C
;
9595 WARN_ONCE(1, "unknown plane in flip command\n");
9600 if (ring
->id
== RCS
) {
9603 * On Gen 8, SRM is now taking an extra dword to accommodate
9604 * 48bits addresses, and we need a NOOP for the batch size to
9612 * BSpec MI_DISPLAY_FLIP for IVB:
9613 * "The full packet must be contained within the same cache line."
9615 * Currently the LRI+SRM+MI_DISPLAY_FLIP all fit within the same
9616 * cacheline, if we ever start emitting more commands before
9617 * the MI_DISPLAY_FLIP we may need to first emit everything else,
9618 * then do the cacheline alignment, and finally emit the
9621 ret
= intel_ring_cacheline_align(ring
);
9625 ret
= intel_ring_begin(ring
, len
);
9629 /* Unmask the flip-done completion message. Note that the bspec says that
9630 * we should do this for both the BCS and RCS, and that we must not unmask
9631 * more than one flip event at any time (or ensure that one flip message
9632 * can be sent by waiting for flip-done prior to queueing new flips).
9633 * Experimentation says that BCS works despite DERRMR masking all
9634 * flip-done completion events and that unmasking all planes at once
9635 * for the RCS also doesn't appear to drop events. Setting the DERRMR
9636 * to zero does lead to lockups within MI_DISPLAY_FLIP.
9638 if (ring
->id
== RCS
) {
9639 intel_ring_emit(ring
, MI_LOAD_REGISTER_IMM(1));
9640 intel_ring_emit(ring
, DERRMR
);
9641 intel_ring_emit(ring
, ~(DERRMR_PIPEA_PRI_FLIP_DONE
|
9642 DERRMR_PIPEB_PRI_FLIP_DONE
|
9643 DERRMR_PIPEC_PRI_FLIP_DONE
));
9645 intel_ring_emit(ring
, MI_STORE_REGISTER_MEM_GEN8(1) |
9646 MI_SRM_LRM_GLOBAL_GTT
);
9648 intel_ring_emit(ring
, MI_STORE_REGISTER_MEM(1) |
9649 MI_SRM_LRM_GLOBAL_GTT
);
9650 intel_ring_emit(ring
, DERRMR
);
9651 intel_ring_emit(ring
, ring
->scratch
.gtt_offset
+ 256);
9653 intel_ring_emit(ring
, 0);
9654 intel_ring_emit(ring
, MI_NOOP
);
9658 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
| plane_bit
);
9659 intel_ring_emit(ring
, (fb
->pitches
[0] | obj
->tiling_mode
));
9660 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9661 intel_ring_emit(ring
, (MI_NOOP
));
9663 intel_mark_page_flip_active(intel_crtc
);
9664 __intel_ring_advance(ring
);
9668 static bool use_mmio_flip(struct intel_engine_cs
*ring
,
9669 struct drm_i915_gem_object
*obj
)
9672 * This is not being used for older platforms, because
9673 * non-availability of flip done interrupt forces us to use
9674 * CS flips. Older platforms derive flip done using some clever
9675 * tricks involving the flip_pending status bits and vblank irqs.
9676 * So using MMIO flips there would disrupt this mechanism.
9682 if (INTEL_INFO(ring
->dev
)->gen
< 5)
9685 if (i915
.use_mmio_flip
< 0)
9687 else if (i915
.use_mmio_flip
> 0)
9689 else if (i915
.enable_execlists
)
9692 return ring
!= obj
->ring
;
9695 static void intel_do_mmio_flip(struct intel_crtc
*intel_crtc
)
9697 struct drm_device
*dev
= intel_crtc
->base
.dev
;
9698 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9699 struct intel_framebuffer
*intel_fb
=
9700 to_intel_framebuffer(intel_crtc
->base
.primary
->fb
);
9701 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
9705 intel_mark_page_flip_active(intel_crtc
);
9707 reg
= DSPCNTR(intel_crtc
->plane
);
9708 dspcntr
= I915_READ(reg
);
9710 if (INTEL_INFO(dev
)->gen
>= 4) {
9711 if (obj
->tiling_mode
!= I915_TILING_NONE
)
9712 dspcntr
|= DISPPLANE_TILED
;
9714 dspcntr
&= ~DISPPLANE_TILED
;
9716 I915_WRITE(reg
, dspcntr
);
9718 I915_WRITE(DSPSURF(intel_crtc
->plane
),
9719 intel_crtc
->unpin_work
->gtt_offset
);
9720 POSTING_READ(DSPSURF(intel_crtc
->plane
));
9723 static int intel_postpone_flip(struct drm_i915_gem_object
*obj
)
9725 struct intel_engine_cs
*ring
;
9728 lockdep_assert_held(&obj
->base
.dev
->struct_mutex
);
9730 if (!obj
->last_write_seqno
)
9735 if (i915_seqno_passed(ring
->get_seqno(ring
, true),
9736 obj
->last_write_seqno
))
9739 ret
= i915_gem_check_olr(ring
, obj
->last_write_seqno
);
9743 if (WARN_ON(!ring
->irq_get(ring
)))
9749 void intel_notify_mmio_flip(struct intel_engine_cs
*ring
)
9751 struct drm_i915_private
*dev_priv
= to_i915(ring
->dev
);
9752 struct intel_crtc
*intel_crtc
;
9753 unsigned long irq_flags
;
9756 seqno
= ring
->get_seqno(ring
, false);
9758 spin_lock_irqsave(&dev_priv
->mmio_flip_lock
, irq_flags
);
9759 for_each_intel_crtc(ring
->dev
, intel_crtc
) {
9760 struct intel_mmio_flip
*mmio_flip
;
9762 mmio_flip
= &intel_crtc
->mmio_flip
;
9763 if (mmio_flip
->seqno
== 0)
9766 if (ring
->id
!= mmio_flip
->ring_id
)
9769 if (i915_seqno_passed(seqno
, mmio_flip
->seqno
)) {
9770 intel_do_mmio_flip(intel_crtc
);
9771 mmio_flip
->seqno
= 0;
9772 ring
->irq_put(ring
);
9775 spin_unlock_irqrestore(&dev_priv
->mmio_flip_lock
, irq_flags
);
9778 static int intel_queue_mmio_flip(struct drm_device
*dev
,
9779 struct drm_crtc
*crtc
,
9780 struct drm_framebuffer
*fb
,
9781 struct drm_i915_gem_object
*obj
,
9782 struct intel_engine_cs
*ring
,
9785 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9786 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9787 unsigned long irq_flags
;
9790 if (WARN_ON(intel_crtc
->mmio_flip
.seqno
))
9793 ret
= intel_postpone_flip(obj
);
9797 intel_do_mmio_flip(intel_crtc
);
9801 spin_lock_irqsave(&dev_priv
->mmio_flip_lock
, irq_flags
);
9802 intel_crtc
->mmio_flip
.seqno
= obj
->last_write_seqno
;
9803 intel_crtc
->mmio_flip
.ring_id
= obj
->ring
->id
;
9804 spin_unlock_irqrestore(&dev_priv
->mmio_flip_lock
, irq_flags
);
9807 * Double check to catch cases where irq fired before
9808 * mmio flip data was ready
9810 intel_notify_mmio_flip(obj
->ring
);
9814 static int intel_default_queue_flip(struct drm_device
*dev
,
9815 struct drm_crtc
*crtc
,
9816 struct drm_framebuffer
*fb
,
9817 struct drm_i915_gem_object
*obj
,
9818 struct intel_engine_cs
*ring
,
9824 static bool __intel_pageflip_stall_check(struct drm_device
*dev
,
9825 struct drm_crtc
*crtc
)
9827 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9828 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9829 struct intel_unpin_work
*work
= intel_crtc
->unpin_work
;
9832 if (atomic_read(&work
->pending
) >= INTEL_FLIP_COMPLETE
)
9835 if (!work
->enable_stall_check
)
9838 if (work
->flip_ready_vblank
== 0) {
9839 if (work
->flip_queued_ring
&&
9840 !i915_seqno_passed(work
->flip_queued_ring
->get_seqno(work
->flip_queued_ring
, true),
9841 work
->flip_queued_seqno
))
9844 work
->flip_ready_vblank
= drm_vblank_count(dev
, intel_crtc
->pipe
);
9847 if (drm_vblank_count(dev
, intel_crtc
->pipe
) - work
->flip_ready_vblank
< 3)
9850 /* Potential stall - if we see that the flip has happened,
9851 * assume a missed interrupt. */
9852 if (INTEL_INFO(dev
)->gen
>= 4)
9853 addr
= I915_HI_DISPBASE(I915_READ(DSPSURF(intel_crtc
->plane
)));
9855 addr
= I915_READ(DSPADDR(intel_crtc
->plane
));
9857 /* There is a potential issue here with a false positive after a flip
9858 * to the same address. We could address this by checking for a
9859 * non-incrementing frame counter.
9861 return addr
== work
->gtt_offset
;
9864 void intel_check_page_flip(struct drm_device
*dev
, int pipe
)
9866 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9867 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
9868 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9869 unsigned long flags
;
9874 spin_lock_irqsave(&dev
->event_lock
, flags
);
9875 if (intel_crtc
->unpin_work
&& __intel_pageflip_stall_check(dev
, crtc
)) {
9876 WARN_ONCE(1, "Kicking stuck page flip: queued at %d, now %d\n",
9877 intel_crtc
->unpin_work
->flip_queued_vblank
, drm_vblank_count(dev
, pipe
));
9878 page_flip_completed(intel_crtc
);
9880 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9883 static int intel_crtc_page_flip(struct drm_crtc
*crtc
,
9884 struct drm_framebuffer
*fb
,
9885 struct drm_pending_vblank_event
*event
,
9886 uint32_t page_flip_flags
)
9888 struct drm_device
*dev
= crtc
->dev
;
9889 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9890 struct drm_framebuffer
*old_fb
= crtc
->primary
->fb
;
9891 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
9892 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9893 enum pipe pipe
= intel_crtc
->pipe
;
9894 struct intel_unpin_work
*work
;
9895 struct intel_engine_cs
*ring
;
9898 //trigger software GT busyness calculation
9899 gen8_flip_interrupt(dev
);
9902 * drm_mode_page_flip_ioctl() should already catch this, but double
9903 * check to be safe. In the future we may enable pageflipping from
9904 * a disabled primary plane.
9906 if (WARN_ON(intel_fb_obj(old_fb
) == NULL
))
9909 /* Can't change pixel format via MI display flips. */
9910 if (fb
->pixel_format
!= crtc
->primary
->fb
->pixel_format
)
9914 * TILEOFF/LINOFF registers can't be changed via MI display flips.
9915 * Note that pitch changes could also affect these register.
9917 if (INTEL_INFO(dev
)->gen
> 3 &&
9918 (fb
->offsets
[0] != crtc
->primary
->fb
->offsets
[0] ||
9919 fb
->pitches
[0] != crtc
->primary
->fb
->pitches
[0]))
9922 if (i915_terminally_wedged(&dev_priv
->gpu_error
))
9925 work
= kzalloc(sizeof(*work
), GFP_KERNEL
);
9929 work
->event
= event
;
9931 work
->old_fb_obj
= intel_fb_obj(old_fb
);
9932 INIT_WORK(&work
->work
, intel_unpin_work_fn
);
9934 ret
= drm_crtc_vblank_get(crtc
);
9938 /* We borrow the event spin lock for protecting unpin_work */
9939 spin_lock_irq(&dev
->event_lock
);
9940 if (intel_crtc
->unpin_work
) {
9941 /* Before declaring the flip queue wedged, check if
9942 * the hardware completed the operation behind our backs.
9944 if (__intel_pageflip_stall_check(dev
, crtc
)) {
9945 DRM_DEBUG_DRIVER("flip queue: previous flip completed, continuing\n");
9946 page_flip_completed(intel_crtc
);
9948 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
9949 spin_unlock_irq(&dev
->event_lock
);
9951 drm_crtc_vblank_put(crtc
);
9956 intel_crtc
->unpin_work
= work
;
9957 spin_unlock_irq(&dev
->event_lock
);
9959 if (atomic_read(&intel_crtc
->unpin_work_count
) >= 2)
9960 flush_workqueue(dev_priv
->wq
);
9962 ret
= i915_mutex_lock_interruptible(dev
);
9966 /* Reference the objects for the scheduled work. */
9967 drm_gem_object_reference(&work
->old_fb_obj
->base
);
9968 drm_gem_object_reference(&obj
->base
);
9970 crtc
->primary
->fb
= fb
;
9972 work
->pending_flip_obj
= obj
;
9974 atomic_inc(&intel_crtc
->unpin_work_count
);
9975 intel_crtc
->reset_counter
= atomic_read(&dev_priv
->gpu_error
.reset_counter
);
9977 if (INTEL_INFO(dev
)->gen
>= 5 || IS_G4X(dev
))
9978 work
->flip_count
= I915_READ(PIPE_FLIPCOUNT_GM45(pipe
)) + 1;
9980 if (IS_VALLEYVIEW(dev
)) {
9981 ring
= &dev_priv
->ring
[BCS
];
9982 if (obj
->tiling_mode
!= work
->old_fb_obj
->tiling_mode
)
9983 /* vlv: DISPLAY_FLIP fails to change tiling */
9985 } else if (IS_IVYBRIDGE(dev
)) {
9986 ring
= &dev_priv
->ring
[BCS
];
9987 } else if (INTEL_INFO(dev
)->gen
>= 7) {
9989 if (ring
== NULL
|| ring
->id
!= RCS
)
9990 ring
= &dev_priv
->ring
[BCS
];
9992 ring
= &dev_priv
->ring
[RCS
];
9995 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
9997 goto cleanup_pending
;
10000 i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
;
10002 if (use_mmio_flip(ring
, obj
)) {
10003 ret
= intel_queue_mmio_flip(dev
, crtc
, fb
, obj
, ring
,
10006 goto cleanup_unpin
;
10008 work
->flip_queued_seqno
= obj
->last_write_seqno
;
10009 work
->flip_queued_ring
= obj
->ring
;
10011 ret
= dev_priv
->display
.queue_flip(dev
, crtc
, fb
, obj
, ring
,
10014 goto cleanup_unpin
;
10016 work
->flip_queued_seqno
= intel_ring_get_seqno(ring
);
10017 work
->flip_queued_ring
= ring
;
10020 work
->flip_queued_vblank
= drm_vblank_count(dev
, intel_crtc
->pipe
);
10021 work
->enable_stall_check
= true;
10023 i915_gem_track_fb(work
->old_fb_obj
, obj
,
10024 INTEL_FRONTBUFFER_PRIMARY(pipe
));
10026 intel_disable_fbc(dev
);
10027 intel_frontbuffer_flip_prepare(dev
, INTEL_FRONTBUFFER_PRIMARY(pipe
));
10028 mutex_unlock(&dev
->struct_mutex
);
10030 trace_i915_flip_request(intel_crtc
->plane
, obj
);
10035 intel_unpin_fb_obj(obj
);
10037 atomic_dec(&intel_crtc
->unpin_work_count
);
10038 crtc
->primary
->fb
= old_fb
;
10039 drm_gem_object_unreference(&work
->old_fb_obj
->base
);
10040 drm_gem_object_unreference(&obj
->base
);
10041 mutex_unlock(&dev
->struct_mutex
);
10044 spin_lock_irq(&dev
->event_lock
);
10045 intel_crtc
->unpin_work
= NULL
;
10046 spin_unlock_irq(&dev
->event_lock
);
10048 drm_crtc_vblank_put(crtc
);
10054 intel_crtc_wait_for_pending_flips(crtc
);
10055 ret
= intel_pipe_set_base(crtc
, crtc
->x
, crtc
->y
, fb
);
10056 if (ret
== 0 && event
) {
10057 spin_lock_irq(&dev
->event_lock
);
10058 drm_send_vblank_event(dev
, pipe
, event
);
10059 spin_unlock_irq(&dev
->event_lock
);
10065 static struct drm_crtc_helper_funcs intel_helper_funcs
= {
10066 .mode_set_base_atomic
= intel_pipe_set_base_atomic
,
10067 .load_lut
= intel_crtc_load_lut
,
10071 * intel_modeset_update_staged_output_state
10073 * Updates the staged output configuration state, e.g. after we've read out the
10074 * current hw state.
10076 static void intel_modeset_update_staged_output_state(struct drm_device
*dev
)
10078 struct intel_crtc
*crtc
;
10079 struct intel_encoder
*encoder
;
10080 struct intel_connector
*connector
;
10082 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
10084 connector
->new_encoder
=
10085 to_intel_encoder(connector
->base
.encoder
);
10088 for_each_intel_encoder(dev
, encoder
) {
10089 encoder
->new_crtc
=
10090 to_intel_crtc(encoder
->base
.crtc
);
10093 for_each_intel_crtc(dev
, crtc
) {
10094 crtc
->new_enabled
= crtc
->base
.enabled
;
10096 if (crtc
->new_enabled
)
10097 crtc
->new_config
= &crtc
->config
;
10099 crtc
->new_config
= NULL
;
10104 * intel_modeset_commit_output_state
10106 * This function copies the stage display pipe configuration to the real one.
10108 static void intel_modeset_commit_output_state(struct drm_device
*dev
)
10110 struct intel_crtc
*crtc
;
10111 struct intel_encoder
*encoder
;
10112 struct intel_connector
*connector
;
10114 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
10116 connector
->base
.encoder
= &connector
->new_encoder
->base
;
10119 for_each_intel_encoder(dev
, encoder
) {
10120 encoder
->base
.crtc
= &encoder
->new_crtc
->base
;
10123 for_each_intel_crtc(dev
, crtc
) {
10124 crtc
->base
.enabled
= crtc
->new_enabled
;
10129 connected_sink_compute_bpp(struct intel_connector
*connector
,
10130 struct intel_crtc_config
*pipe_config
)
10132 int bpp
= pipe_config
->pipe_bpp
;
10134 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n",
10135 connector
->base
.base
.id
,
10136 connector
->base
.name
);
10138 /* Don't use an invalid EDID bpc value */
10139 if (connector
->base
.display_info
.bpc
&&
10140 connector
->base
.display_info
.bpc
* 3 < bpp
) {
10141 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
10142 bpp
, connector
->base
.display_info
.bpc
*3);
10143 pipe_config
->pipe_bpp
= connector
->base
.display_info
.bpc
*3;
10146 /* Clamp bpp to 8 on screens without EDID 1.4 */
10147 if (connector
->base
.display_info
.bpc
== 0 && bpp
> 24) {
10148 DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
10150 pipe_config
->pipe_bpp
= 24;
10155 compute_baseline_pipe_bpp(struct intel_crtc
*crtc
,
10156 struct drm_framebuffer
*fb
,
10157 struct intel_crtc_config
*pipe_config
)
10159 struct drm_device
*dev
= crtc
->base
.dev
;
10160 struct intel_connector
*connector
;
10163 switch (fb
->pixel_format
) {
10164 case DRM_FORMAT_C8
:
10165 bpp
= 8*3; /* since we go through a colormap */
10167 case DRM_FORMAT_XRGB1555
:
10168 case DRM_FORMAT_ARGB1555
:
10169 /* checked in intel_framebuffer_init already */
10170 if (WARN_ON(INTEL_INFO(dev
)->gen
> 3))
10172 case DRM_FORMAT_RGB565
:
10173 bpp
= 6*3; /* min is 18bpp */
10175 case DRM_FORMAT_XBGR8888
:
10176 case DRM_FORMAT_ABGR8888
:
10177 /* checked in intel_framebuffer_init already */
10178 if (WARN_ON(INTEL_INFO(dev
)->gen
< 4))
10180 case DRM_FORMAT_XRGB8888
:
10181 case DRM_FORMAT_ARGB8888
:
10184 case DRM_FORMAT_XRGB2101010
:
10185 case DRM_FORMAT_ARGB2101010
:
10186 case DRM_FORMAT_XBGR2101010
:
10187 case DRM_FORMAT_ABGR2101010
:
10188 /* checked in intel_framebuffer_init already */
10189 if (WARN_ON(INTEL_INFO(dev
)->gen
< 4))
10193 /* TODO: gen4+ supports 16 bpc floating point, too. */
10195 DRM_DEBUG_KMS("unsupported depth\n");
10199 pipe_config
->pipe_bpp
= bpp
;
10201 /* Clamp display bpp to EDID value */
10202 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
10204 if (!connector
->new_encoder
||
10205 connector
->new_encoder
->new_crtc
!= crtc
)
10208 connected_sink_compute_bpp(connector
, pipe_config
);
10214 static void intel_dump_crtc_timings(const struct drm_display_mode
*mode
)
10216 DRM_DEBUG_KMS("crtc timings: %d %d %d %d %d %d %d %d %d, "
10217 "type: 0x%x flags: 0x%x\n",
10219 mode
->crtc_hdisplay
, mode
->crtc_hsync_start
,
10220 mode
->crtc_hsync_end
, mode
->crtc_htotal
,
10221 mode
->crtc_vdisplay
, mode
->crtc_vsync_start
,
10222 mode
->crtc_vsync_end
, mode
->crtc_vtotal
, mode
->type
, mode
->flags
);
10225 static void intel_dump_pipe_config(struct intel_crtc
*crtc
,
10226 struct intel_crtc_config
*pipe_config
,
10227 const char *context
)
10229 DRM_DEBUG_KMS("[CRTC:%d]%s config for pipe %c\n", crtc
->base
.base
.id
,
10230 context
, pipe_name(crtc
->pipe
));
10232 DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config
->cpu_transcoder
));
10233 DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n",
10234 pipe_config
->pipe_bpp
, pipe_config
->dither
);
10235 DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
10236 pipe_config
->has_pch_encoder
,
10237 pipe_config
->fdi_lanes
,
10238 pipe_config
->fdi_m_n
.gmch_m
, pipe_config
->fdi_m_n
.gmch_n
,
10239 pipe_config
->fdi_m_n
.link_m
, pipe_config
->fdi_m_n
.link_n
,
10240 pipe_config
->fdi_m_n
.tu
);
10241 DRM_DEBUG_KMS("dp: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
10242 pipe_config
->has_dp_encoder
,
10243 pipe_config
->dp_m_n
.gmch_m
, pipe_config
->dp_m_n
.gmch_n
,
10244 pipe_config
->dp_m_n
.link_m
, pipe_config
->dp_m_n
.link_n
,
10245 pipe_config
->dp_m_n
.tu
);
10247 DRM_DEBUG_KMS("dp: %i, gmch_m2: %u, gmch_n2: %u, link_m2: %u, link_n2: %u, tu2: %u\n",
10248 pipe_config
->has_dp_encoder
,
10249 pipe_config
->dp_m2_n2
.gmch_m
,
10250 pipe_config
->dp_m2_n2
.gmch_n
,
10251 pipe_config
->dp_m2_n2
.link_m
,
10252 pipe_config
->dp_m2_n2
.link_n
,
10253 pipe_config
->dp_m2_n2
.tu
);
10255 DRM_DEBUG_KMS("requested mode:\n");
10256 drm_mode_debug_printmodeline(&pipe_config
->requested_mode
);
10257 DRM_DEBUG_KMS("adjusted mode:\n");
10258 drm_mode_debug_printmodeline(&pipe_config
->adjusted_mode
);
10259 intel_dump_crtc_timings(&pipe_config
->adjusted_mode
);
10260 DRM_DEBUG_KMS("port clock: %d\n", pipe_config
->port_clock
);
10261 DRM_DEBUG_KMS("pipe src size: %dx%d\n",
10262 pipe_config
->pipe_src_w
, pipe_config
->pipe_src_h
);
10263 DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n",
10264 pipe_config
->gmch_pfit
.control
,
10265 pipe_config
->gmch_pfit
.pgm_ratios
,
10266 pipe_config
->gmch_pfit
.lvds_border_bits
);
10267 DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n",
10268 pipe_config
->pch_pfit
.pos
,
10269 pipe_config
->pch_pfit
.size
,
10270 pipe_config
->pch_pfit
.enabled
? "enabled" : "disabled");
10271 DRM_DEBUG_KMS("ips: %i\n", pipe_config
->ips_enabled
);
10272 DRM_DEBUG_KMS("double wide: %i\n", pipe_config
->double_wide
);
10275 static bool encoders_cloneable(const struct intel_encoder
*a
,
10276 const struct intel_encoder
*b
)
10278 /* masks could be asymmetric, so check both ways */
10279 return a
== b
|| (a
->cloneable
& (1 << b
->type
) &&
10280 b
->cloneable
& (1 << a
->type
));
10283 static bool check_single_encoder_cloning(struct intel_crtc
*crtc
,
10284 struct intel_encoder
*encoder
)
10286 struct drm_device
*dev
= crtc
->base
.dev
;
10287 struct intel_encoder
*source_encoder
;
10289 for_each_intel_encoder(dev
, source_encoder
) {
10290 if (source_encoder
->new_crtc
!= crtc
)
10293 if (!encoders_cloneable(encoder
, source_encoder
))
10300 static bool check_encoder_cloning(struct intel_crtc
*crtc
)
10302 struct drm_device
*dev
= crtc
->base
.dev
;
10303 struct intel_encoder
*encoder
;
10305 for_each_intel_encoder(dev
, encoder
) {
10306 if (encoder
->new_crtc
!= crtc
)
10309 if (!check_single_encoder_cloning(crtc
, encoder
))
10316 static struct intel_crtc_config
*
10317 intel_modeset_pipe_config(struct drm_crtc
*crtc
,
10318 struct drm_framebuffer
*fb
,
10319 struct drm_display_mode
*mode
)
10321 struct drm_device
*dev
= crtc
->dev
;
10322 struct intel_encoder
*encoder
;
10323 struct intel_crtc_config
*pipe_config
;
10324 int plane_bpp
, ret
= -EINVAL
;
10327 if (!check_encoder_cloning(to_intel_crtc(crtc
))) {
10328 DRM_DEBUG_KMS("rejecting invalid cloning configuration\n");
10329 return ERR_PTR(-EINVAL
);
10332 pipe_config
= kzalloc(sizeof(*pipe_config
), GFP_KERNEL
);
10334 return ERR_PTR(-ENOMEM
);
10336 drm_mode_copy(&pipe_config
->adjusted_mode
, mode
);
10337 drm_mode_copy(&pipe_config
->requested_mode
, mode
);
10339 pipe_config
->cpu_transcoder
=
10340 (enum transcoder
) to_intel_crtc(crtc
)->pipe
;
10341 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
10344 * Sanitize sync polarity flags based on requested ones. If neither
10345 * positive or negative polarity is requested, treat this as meaning
10346 * negative polarity.
10348 if (!(pipe_config
->adjusted_mode
.flags
&
10349 (DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NHSYNC
)))
10350 pipe_config
->adjusted_mode
.flags
|= DRM_MODE_FLAG_NHSYNC
;
10352 if (!(pipe_config
->adjusted_mode
.flags
&
10353 (DRM_MODE_FLAG_PVSYNC
| DRM_MODE_FLAG_NVSYNC
)))
10354 pipe_config
->adjusted_mode
.flags
|= DRM_MODE_FLAG_NVSYNC
;
10356 /* Compute a starting value for pipe_config->pipe_bpp taking the source
10357 * plane pixel format and any sink constraints into account. Returns the
10358 * source plane bpp so that dithering can be selected on mismatches
10359 * after encoders and crtc also have had their say. */
10360 plane_bpp
= compute_baseline_pipe_bpp(to_intel_crtc(crtc
),
10366 * Determine the real pipe dimensions. Note that stereo modes can
10367 * increase the actual pipe size due to the frame doubling and
10368 * insertion of additional space for blanks between the frame. This
10369 * is stored in the crtc timings. We use the requested mode to do this
10370 * computation to clearly distinguish it from the adjusted mode, which
10371 * can be changed by the connectors in the below retry loop.
10373 drm_mode_set_crtcinfo(&pipe_config
->requested_mode
, CRTC_STEREO_DOUBLE
);
10374 pipe_config
->pipe_src_w
= pipe_config
->requested_mode
.crtc_hdisplay
;
10375 pipe_config
->pipe_src_h
= pipe_config
->requested_mode
.crtc_vdisplay
;
10378 /* Ensure the port clock defaults are reset when retrying. */
10379 pipe_config
->port_clock
= 0;
10380 pipe_config
->pixel_multiplier
= 1;
10382 /* Fill in default crtc timings, allow encoders to overwrite them. */
10383 drm_mode_set_crtcinfo(&pipe_config
->adjusted_mode
, CRTC_STEREO_DOUBLE
);
10385 /* Pass our mode to the connectors and the CRTC to give them a chance to
10386 * adjust it according to limitations or connector properties, and also
10387 * a chance to reject the mode entirely.
10389 for_each_intel_encoder(dev
, encoder
) {
10391 if (&encoder
->new_crtc
->base
!= crtc
)
10394 if (!(encoder
->compute_config(encoder
, pipe_config
))) {
10395 DRM_DEBUG_KMS("Encoder config failure\n");
10400 /* Set default port clock if not overwritten by the encoder. Needs to be
10401 * done afterwards in case the encoder adjusts the mode. */
10402 if (!pipe_config
->port_clock
)
10403 pipe_config
->port_clock
= pipe_config
->adjusted_mode
.crtc_clock
10404 * pipe_config
->pixel_multiplier
;
10406 ret
= intel_crtc_compute_config(to_intel_crtc(crtc
), pipe_config
);
10408 DRM_DEBUG_KMS("CRTC fixup failed\n");
10412 if (ret
== RETRY
) {
10413 if (WARN(!retry
, "loop in pipe configuration computation\n")) {
10418 DRM_DEBUG_KMS("CRTC bw constrained, retrying\n");
10420 goto encoder_retry
;
10423 pipe_config
->dither
= pipe_config
->pipe_bpp
!= plane_bpp
;
10424 DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n",
10425 plane_bpp
, pipe_config
->pipe_bpp
, pipe_config
->dither
);
10427 return pipe_config
;
10429 kfree(pipe_config
);
10430 return ERR_PTR(ret
);
10433 /* Computes which crtcs are affected and sets the relevant bits in the mask. For
10434 * simplicity we use the crtc's pipe number (because it's easier to obtain). */
10436 intel_modeset_affected_pipes(struct drm_crtc
*crtc
, unsigned *modeset_pipes
,
10437 unsigned *prepare_pipes
, unsigned *disable_pipes
)
10439 struct intel_crtc
*intel_crtc
;
10440 struct drm_device
*dev
= crtc
->dev
;
10441 struct intel_encoder
*encoder
;
10442 struct intel_connector
*connector
;
10443 struct drm_crtc
*tmp_crtc
;
10445 *disable_pipes
= *modeset_pipes
= *prepare_pipes
= 0;
10447 /* Check which crtcs have changed outputs connected to them, these need
10448 * to be part of the prepare_pipes mask. We don't (yet) support global
10449 * modeset across multiple crtcs, so modeset_pipes will only have one
10450 * bit set at most. */
10451 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
10453 if (connector
->base
.encoder
== &connector
->new_encoder
->base
)
10456 if (connector
->base
.encoder
) {
10457 tmp_crtc
= connector
->base
.encoder
->crtc
;
10459 *prepare_pipes
|= 1 << to_intel_crtc(tmp_crtc
)->pipe
;
10462 if (connector
->new_encoder
)
10464 1 << connector
->new_encoder
->new_crtc
->pipe
;
10467 for_each_intel_encoder(dev
, encoder
) {
10468 if (encoder
->base
.crtc
== &encoder
->new_crtc
->base
)
10471 if (encoder
->base
.crtc
) {
10472 tmp_crtc
= encoder
->base
.crtc
;
10474 *prepare_pipes
|= 1 << to_intel_crtc(tmp_crtc
)->pipe
;
10477 if (encoder
->new_crtc
)
10478 *prepare_pipes
|= 1 << encoder
->new_crtc
->pipe
;
10481 /* Check for pipes that will be enabled/disabled ... */
10482 for_each_intel_crtc(dev
, intel_crtc
) {
10483 if (intel_crtc
->base
.enabled
== intel_crtc
->new_enabled
)
10486 if (!intel_crtc
->new_enabled
)
10487 *disable_pipes
|= 1 << intel_crtc
->pipe
;
10489 *prepare_pipes
|= 1 << intel_crtc
->pipe
;
10493 /* set_mode is also used to update properties on life display pipes. */
10494 intel_crtc
= to_intel_crtc(crtc
);
10495 if (intel_crtc
->new_enabled
)
10496 *prepare_pipes
|= 1 << intel_crtc
->pipe
;
10499 * For simplicity do a full modeset on any pipe where the output routing
10500 * changed. We could be more clever, but that would require us to be
10501 * more careful with calling the relevant encoder->mode_set functions.
10503 if (*prepare_pipes
)
10504 *modeset_pipes
= *prepare_pipes
;
10506 /* ... and mask these out. */
10507 *modeset_pipes
&= ~(*disable_pipes
);
10508 *prepare_pipes
&= ~(*disable_pipes
);
10511 * HACK: We don't (yet) fully support global modesets. intel_set_config
10512 * obies this rule, but the modeset restore mode of
10513 * intel_modeset_setup_hw_state does not.
10515 *modeset_pipes
&= 1 << intel_crtc
->pipe
;
10516 *prepare_pipes
&= 1 << intel_crtc
->pipe
;
10518 DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
10519 *modeset_pipes
, *prepare_pipes
, *disable_pipes
);
10522 static bool intel_crtc_in_use(struct drm_crtc
*crtc
)
10524 struct drm_encoder
*encoder
;
10525 struct drm_device
*dev
= crtc
->dev
;
10527 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
)
10528 if (encoder
->crtc
== crtc
)
10535 intel_modeset_update_state(struct drm_device
*dev
, unsigned prepare_pipes
)
10537 struct intel_encoder
*intel_encoder
;
10538 struct intel_crtc
*intel_crtc
;
10539 struct drm_connector
*connector
;
10541 for_each_intel_encoder(dev
, intel_encoder
) {
10542 if (!intel_encoder
->base
.crtc
)
10545 intel_crtc
= to_intel_crtc(intel_encoder
->base
.crtc
);
10547 if (prepare_pipes
& (1 << intel_crtc
->pipe
))
10548 intel_encoder
->connectors_active
= false;
10551 intel_modeset_commit_output_state(dev
);
10553 /* Double check state. */
10554 for_each_intel_crtc(dev
, intel_crtc
) {
10555 WARN_ON(intel_crtc
->base
.enabled
!= intel_crtc_in_use(&intel_crtc
->base
));
10556 WARN_ON(intel_crtc
->new_config
&&
10557 intel_crtc
->new_config
!= &intel_crtc
->config
);
10558 WARN_ON(intel_crtc
->base
.enabled
!= !!intel_crtc
->new_config
);
10561 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
10562 if (!connector
->encoder
|| !connector
->encoder
->crtc
)
10565 intel_crtc
= to_intel_crtc(connector
->encoder
->crtc
);
10567 if (prepare_pipes
& (1 << intel_crtc
->pipe
)) {
10568 struct drm_property
*dpms_property
=
10569 dev
->mode_config
.dpms_property
;
10571 connector
->dpms
= DRM_MODE_DPMS_ON
;
10572 drm_object_property_set_value(&connector
->base
,
10576 intel_encoder
= to_intel_encoder(connector
->encoder
);
10577 intel_encoder
->connectors_active
= true;
10583 static bool intel_fuzzy_clock_check(int clock1
, int clock2
)
10587 if (clock1
== clock2
)
10590 if (!clock1
|| !clock2
)
10593 diff
= abs(clock1
- clock2
);
10595 if (((((diff
+ clock1
+ clock2
) * 100)) / (clock1
+ clock2
)) < 105)
10601 #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
10602 list_for_each_entry((intel_crtc), \
10603 &(dev)->mode_config.crtc_list, \
10605 if (mask & (1 <<(intel_crtc)->pipe))
10608 intel_pipe_config_compare(struct drm_device
*dev
,
10609 struct intel_crtc_config
*current_config
,
10610 struct intel_crtc_config
*pipe_config
)
10612 #define PIPE_CONF_CHECK_X(name) \
10613 if (current_config->name != pipe_config->name) { \
10614 DRM_ERROR("mismatch in " #name " " \
10615 "(expected 0x%08x, found 0x%08x)\n", \
10616 current_config->name, \
10617 pipe_config->name); \
10621 #define PIPE_CONF_CHECK_I(name) \
10622 if (current_config->name != pipe_config->name) { \
10623 DRM_ERROR("mismatch in " #name " " \
10624 "(expected %i, found %i)\n", \
10625 current_config->name, \
10626 pipe_config->name); \
10630 /* This is required for BDW+ where there is only one set of registers for
10631 * switching between high and low RR.
10632 * This macro can be used whenever a comparison has to be made between one
10633 * hw state and multiple sw state variables.
10635 #define PIPE_CONF_CHECK_I_ALT(name, alt_name) \
10636 if ((current_config->name != pipe_config->name) && \
10637 (current_config->alt_name != pipe_config->name)) { \
10638 DRM_ERROR("mismatch in " #name " " \
10639 "(expected %i or %i, found %i)\n", \
10640 current_config->name, \
10641 current_config->alt_name, \
10642 pipe_config->name); \
10646 #define PIPE_CONF_CHECK_FLAGS(name, mask) \
10647 if ((current_config->name ^ pipe_config->name) & (mask)) { \
10648 DRM_ERROR("mismatch in " #name "(" #mask ") " \
10649 "(expected %i, found %i)\n", \
10650 current_config->name & (mask), \
10651 pipe_config->name & (mask)); \
10655 #define PIPE_CONF_CHECK_CLOCK_FUZZY(name) \
10656 if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \
10657 DRM_ERROR("mismatch in " #name " " \
10658 "(expected %i, found %i)\n", \
10659 current_config->name, \
10660 pipe_config->name); \
10664 #define PIPE_CONF_QUIRK(quirk) \
10665 ((current_config->quirks | pipe_config->quirks) & (quirk))
10667 PIPE_CONF_CHECK_I(cpu_transcoder
);
10669 PIPE_CONF_CHECK_I(has_pch_encoder
);
10670 PIPE_CONF_CHECK_I(fdi_lanes
);
10671 PIPE_CONF_CHECK_I(fdi_m_n
.gmch_m
);
10672 PIPE_CONF_CHECK_I(fdi_m_n
.gmch_n
);
10673 PIPE_CONF_CHECK_I(fdi_m_n
.link_m
);
10674 PIPE_CONF_CHECK_I(fdi_m_n
.link_n
);
10675 PIPE_CONF_CHECK_I(fdi_m_n
.tu
);
10677 PIPE_CONF_CHECK_I(has_dp_encoder
);
10679 if (INTEL_INFO(dev
)->gen
< 8) {
10680 PIPE_CONF_CHECK_I(dp_m_n
.gmch_m
);
10681 PIPE_CONF_CHECK_I(dp_m_n
.gmch_n
);
10682 PIPE_CONF_CHECK_I(dp_m_n
.link_m
);
10683 PIPE_CONF_CHECK_I(dp_m_n
.link_n
);
10684 PIPE_CONF_CHECK_I(dp_m_n
.tu
);
10686 if (current_config
->has_drrs
) {
10687 PIPE_CONF_CHECK_I(dp_m2_n2
.gmch_m
);
10688 PIPE_CONF_CHECK_I(dp_m2_n2
.gmch_n
);
10689 PIPE_CONF_CHECK_I(dp_m2_n2
.link_m
);
10690 PIPE_CONF_CHECK_I(dp_m2_n2
.link_n
);
10691 PIPE_CONF_CHECK_I(dp_m2_n2
.tu
);
10694 PIPE_CONF_CHECK_I_ALT(dp_m_n
.gmch_m
, dp_m2_n2
.gmch_m
);
10695 PIPE_CONF_CHECK_I_ALT(dp_m_n
.gmch_n
, dp_m2_n2
.gmch_n
);
10696 PIPE_CONF_CHECK_I_ALT(dp_m_n
.link_m
, dp_m2_n2
.link_m
);
10697 PIPE_CONF_CHECK_I_ALT(dp_m_n
.link_n
, dp_m2_n2
.link_n
);
10698 PIPE_CONF_CHECK_I_ALT(dp_m_n
.tu
, dp_m2_n2
.tu
);
10701 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_hdisplay
);
10702 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_htotal
);
10703 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_hblank_start
);
10704 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_hblank_end
);
10705 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_hsync_start
);
10706 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_hsync_end
);
10708 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vdisplay
);
10709 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vtotal
);
10710 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vblank_start
);
10711 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vblank_end
);
10712 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vsync_start
);
10713 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vsync_end
);
10715 PIPE_CONF_CHECK_I(pixel_multiplier
);
10716 PIPE_CONF_CHECK_I(has_hdmi_sink
);
10717 if ((INTEL_INFO(dev
)->gen
< 8 && !IS_HASWELL(dev
)) ||
10718 IS_VALLEYVIEW(dev
))
10719 PIPE_CONF_CHECK_I(limited_color_range
);
10721 PIPE_CONF_CHECK_I(has_audio
);
10723 PIPE_CONF_CHECK_FLAGS(adjusted_mode
.flags
,
10724 DRM_MODE_FLAG_INTERLACE
);
10726 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS
)) {
10727 PIPE_CONF_CHECK_FLAGS(adjusted_mode
.flags
,
10728 DRM_MODE_FLAG_PHSYNC
);
10729 PIPE_CONF_CHECK_FLAGS(adjusted_mode
.flags
,
10730 DRM_MODE_FLAG_NHSYNC
);
10731 PIPE_CONF_CHECK_FLAGS(adjusted_mode
.flags
,
10732 DRM_MODE_FLAG_PVSYNC
);
10733 PIPE_CONF_CHECK_FLAGS(adjusted_mode
.flags
,
10734 DRM_MODE_FLAG_NVSYNC
);
10737 PIPE_CONF_CHECK_I(pipe_src_w
);
10738 PIPE_CONF_CHECK_I(pipe_src_h
);
10741 * FIXME: BIOS likes to set up a cloned config with lvds+external
10742 * screen. Since we don't yet re-compute the pipe config when moving
10743 * just the lvds port away to another pipe the sw tracking won't match.
10745 * Proper atomic modesets with recomputed global state will fix this.
10746 * Until then just don't check gmch state for inherited modes.
10748 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_INHERITED_MODE
)) {
10749 PIPE_CONF_CHECK_I(gmch_pfit
.control
);
10750 /* pfit ratios are autocomputed by the hw on gen4+ */
10751 if (INTEL_INFO(dev
)->gen
< 4)
10752 PIPE_CONF_CHECK_I(gmch_pfit
.pgm_ratios
);
10753 PIPE_CONF_CHECK_I(gmch_pfit
.lvds_border_bits
);
10756 PIPE_CONF_CHECK_I(pch_pfit
.enabled
);
10757 if (current_config
->pch_pfit
.enabled
) {
10758 PIPE_CONF_CHECK_I(pch_pfit
.pos
);
10759 PIPE_CONF_CHECK_I(pch_pfit
.size
);
10762 /* BDW+ don't expose a synchronous way to read the state */
10763 if (IS_HASWELL(dev
))
10764 PIPE_CONF_CHECK_I(ips_enabled
);
10766 PIPE_CONF_CHECK_I(double_wide
);
10768 PIPE_CONF_CHECK_X(ddi_pll_sel
);
10770 PIPE_CONF_CHECK_I(shared_dpll
);
10771 PIPE_CONF_CHECK_X(dpll_hw_state
.dpll
);
10772 PIPE_CONF_CHECK_X(dpll_hw_state
.dpll_md
);
10773 PIPE_CONF_CHECK_X(dpll_hw_state
.fp0
);
10774 PIPE_CONF_CHECK_X(dpll_hw_state
.fp1
);
10775 PIPE_CONF_CHECK_X(dpll_hw_state
.wrpll
);
10777 if (IS_G4X(dev
) || INTEL_INFO(dev
)->gen
>= 5)
10778 PIPE_CONF_CHECK_I(pipe_bpp
);
10780 PIPE_CONF_CHECK_CLOCK_FUZZY(adjusted_mode
.crtc_clock
);
10781 PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock
);
10783 #undef PIPE_CONF_CHECK_X
10784 #undef PIPE_CONF_CHECK_I
10785 #undef PIPE_CONF_CHECK_I_ALT
10786 #undef PIPE_CONF_CHECK_FLAGS
10787 #undef PIPE_CONF_CHECK_CLOCK_FUZZY
10788 #undef PIPE_CONF_QUIRK
10794 check_connector_state(struct drm_device
*dev
)
10796 struct intel_connector
*connector
;
10798 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
10800 /* This also checks the encoder/connector hw state with the
10801 * ->get_hw_state callbacks. */
10802 intel_connector_check_state(connector
);
10804 WARN(&connector
->new_encoder
->base
!= connector
->base
.encoder
,
10805 "connector's staged encoder doesn't match current encoder\n");
10810 check_encoder_state(struct drm_device
*dev
)
10812 struct intel_encoder
*encoder
;
10813 struct intel_connector
*connector
;
10815 for_each_intel_encoder(dev
, encoder
) {
10816 bool enabled
= false;
10817 bool active
= false;
10818 enum pipe pipe
, tracked_pipe
;
10820 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
10821 encoder
->base
.base
.id
,
10822 encoder
->base
.name
);
10824 WARN(&encoder
->new_crtc
->base
!= encoder
->base
.crtc
,
10825 "encoder's stage crtc doesn't match current crtc\n");
10826 WARN(encoder
->connectors_active
&& !encoder
->base
.crtc
,
10827 "encoder's active_connectors set, but no crtc\n");
10829 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
10831 if (connector
->base
.encoder
!= &encoder
->base
)
10834 if (connector
->base
.dpms
!= DRM_MODE_DPMS_OFF
)
10838 * for MST connectors if we unplug the connector is gone
10839 * away but the encoder is still connected to a crtc
10840 * until a modeset happens in response to the hotplug.
10842 if (!enabled
&& encoder
->base
.encoder_type
== DRM_MODE_ENCODER_DPMST
)
10845 WARN(!!encoder
->base
.crtc
!= enabled
,
10846 "encoder's enabled state mismatch "
10847 "(expected %i, found %i)\n",
10848 !!encoder
->base
.crtc
, enabled
);
10849 WARN(active
&& !encoder
->base
.crtc
,
10850 "active encoder with no crtc\n");
10852 WARN(encoder
->connectors_active
!= active
,
10853 "encoder's computed active state doesn't match tracked active state "
10854 "(expected %i, found %i)\n", active
, encoder
->connectors_active
);
10856 active
= encoder
->get_hw_state(encoder
, &pipe
);
10857 WARN(active
!= encoder
->connectors_active
,
10858 "encoder's hw state doesn't match sw tracking "
10859 "(expected %i, found %i)\n",
10860 encoder
->connectors_active
, active
);
10862 if (!encoder
->base
.crtc
)
10865 tracked_pipe
= to_intel_crtc(encoder
->base
.crtc
)->pipe
;
10866 WARN(active
&& pipe
!= tracked_pipe
,
10867 "active encoder's pipe doesn't match"
10868 "(expected %i, found %i)\n",
10869 tracked_pipe
, pipe
);
10875 check_crtc_state(struct drm_device
*dev
)
10877 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10878 struct intel_crtc
*crtc
;
10879 struct intel_encoder
*encoder
;
10880 struct intel_crtc_config pipe_config
;
10882 for_each_intel_crtc(dev
, crtc
) {
10883 bool enabled
= false;
10884 bool active
= false;
10886 memset(&pipe_config
, 0, sizeof(pipe_config
));
10888 DRM_DEBUG_KMS("[CRTC:%d]\n",
10889 crtc
->base
.base
.id
);
10891 WARN(crtc
->active
&& !crtc
->base
.enabled
,
10892 "active crtc, but not enabled in sw tracking\n");
10894 for_each_intel_encoder(dev
, encoder
) {
10895 if (encoder
->base
.crtc
!= &crtc
->base
)
10898 if (encoder
->connectors_active
)
10902 WARN(active
!= crtc
->active
,
10903 "crtc's computed active state doesn't match tracked active state "
10904 "(expected %i, found %i)\n", active
, crtc
->active
);
10905 WARN(enabled
!= crtc
->base
.enabled
,
10906 "crtc's computed enabled state doesn't match tracked enabled state "
10907 "(expected %i, found %i)\n", enabled
, crtc
->base
.enabled
);
10909 active
= dev_priv
->display
.get_pipe_config(crtc
,
10912 /* hw state is inconsistent with the pipe quirk */
10913 if ((crtc
->pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
10914 (crtc
->pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
10915 active
= crtc
->active
;
10917 for_each_intel_encoder(dev
, encoder
) {
10919 if (encoder
->base
.crtc
!= &crtc
->base
)
10921 if (encoder
->get_hw_state(encoder
, &pipe
))
10922 encoder
->get_config(encoder
, &pipe_config
);
10925 WARN(crtc
->active
!= active
,
10926 "crtc active state doesn't match with hw state "
10927 "(expected %i, found %i)\n", crtc
->active
, active
);
10930 !intel_pipe_config_compare(dev
, &crtc
->config
, &pipe_config
)) {
10931 WARN(1, "pipe state doesn't match!\n");
10932 intel_dump_pipe_config(crtc
, &pipe_config
,
10934 intel_dump_pipe_config(crtc
, &crtc
->config
,
10941 check_shared_dpll_state(struct drm_device
*dev
)
10943 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10944 struct intel_crtc
*crtc
;
10945 struct intel_dpll_hw_state dpll_hw_state
;
10948 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
10949 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
10950 int enabled_crtcs
= 0, active_crtcs
= 0;
10953 memset(&dpll_hw_state
, 0, sizeof(dpll_hw_state
));
10955 DRM_DEBUG_KMS("%s\n", pll
->name
);
10957 active
= pll
->get_hw_state(dev_priv
, pll
, &dpll_hw_state
);
10959 WARN(pll
->active
> pll
->refcount
,
10960 "more active pll users than references: %i vs %i\n",
10961 pll
->active
, pll
->refcount
);
10962 WARN(pll
->active
&& !pll
->on
,
10963 "pll in active use but not on in sw tracking\n");
10964 WARN(pll
->on
&& !pll
->active
,
10965 "pll in on but not on in use in sw tracking\n");
10966 WARN(pll
->on
!= active
,
10967 "pll on state mismatch (expected %i, found %i)\n",
10970 for_each_intel_crtc(dev
, crtc
) {
10971 if (crtc
->base
.enabled
&& intel_crtc_to_shared_dpll(crtc
) == pll
)
10973 if (crtc
->active
&& intel_crtc_to_shared_dpll(crtc
) == pll
)
10976 WARN(pll
->active
!= active_crtcs
,
10977 "pll active crtcs mismatch (expected %i, found %i)\n",
10978 pll
->active
, active_crtcs
);
10979 WARN(pll
->refcount
!= enabled_crtcs
,
10980 "pll enabled crtcs mismatch (expected %i, found %i)\n",
10981 pll
->refcount
, enabled_crtcs
);
10983 WARN(pll
->on
&& memcmp(&pll
->hw_state
, &dpll_hw_state
,
10984 sizeof(dpll_hw_state
)),
10985 "pll hw state mismatch\n");
10990 intel_modeset_check_state(struct drm_device
*dev
)
10992 check_connector_state(dev
);
10993 check_encoder_state(dev
);
10994 check_crtc_state(dev
);
10995 check_shared_dpll_state(dev
);
10998 void ironlake_check_encoder_dotclock(const struct intel_crtc_config
*pipe_config
,
11002 * FDI already provided one idea for the dotclock.
11003 * Yell if the encoder disagrees.
11005 WARN(!intel_fuzzy_clock_check(pipe_config
->adjusted_mode
.crtc_clock
, dotclock
),
11006 "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n",
11007 pipe_config
->adjusted_mode
.crtc_clock
, dotclock
);
11010 static void update_scanline_offset(struct intel_crtc
*crtc
)
11012 struct drm_device
*dev
= crtc
->base
.dev
;
11015 * The scanline counter increments at the leading edge of hsync.
11017 * On most platforms it starts counting from vtotal-1 on the
11018 * first active line. That means the scanline counter value is
11019 * always one less than what we would expect. Ie. just after
11020 * start of vblank, which also occurs at start of hsync (on the
11021 * last active line), the scanline counter will read vblank_start-1.
11023 * On gen2 the scanline counter starts counting from 1 instead
11024 * of vtotal-1, so we have to subtract one (or rather add vtotal-1
11025 * to keep the value positive), instead of adding one.
11027 * On HSW+ the behaviour of the scanline counter depends on the output
11028 * type. For DP ports it behaves like most other platforms, but on HDMI
11029 * there's an extra 1 line difference. So we need to add two instead of
11030 * one to the value.
11032 if (IS_GEN2(dev
)) {
11033 const struct drm_display_mode
*mode
= &crtc
->config
.adjusted_mode
;
11036 vtotal
= mode
->crtc_vtotal
;
11037 if (mode
->flags
& DRM_MODE_FLAG_INTERLACE
)
11040 crtc
->scanline_offset
= vtotal
- 1;
11041 } else if (HAS_DDI(dev
) &&
11042 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_HDMI
)) {
11043 crtc
->scanline_offset
= 2;
11045 crtc
->scanline_offset
= 1;
11048 static int __intel_set_mode(struct drm_crtc
*crtc
,
11049 struct drm_display_mode
*mode
,
11050 int x
, int y
, struct drm_framebuffer
*fb
)
11052 struct drm_device
*dev
= crtc
->dev
;
11053 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11054 struct drm_display_mode
*saved_mode
;
11055 struct intel_crtc_config
*pipe_config
= NULL
;
11056 struct intel_crtc
*intel_crtc
;
11057 unsigned disable_pipes
, prepare_pipes
, modeset_pipes
;
11060 saved_mode
= kmalloc(sizeof(*saved_mode
), GFP_KERNEL
);
11064 intel_modeset_affected_pipes(crtc
, &modeset_pipes
,
11065 &prepare_pipes
, &disable_pipes
);
11067 *saved_mode
= crtc
->mode
;
11069 /* Hack: Because we don't (yet) support global modeset on multiple
11070 * crtcs, we don't keep track of the new mode for more than one crtc.
11071 * Hence simply check whether any bit is set in modeset_pipes in all the
11072 * pieces of code that are not yet converted to deal with mutliple crtcs
11073 * changing their mode at the same time. */
11074 if (modeset_pipes
) {
11075 pipe_config
= intel_modeset_pipe_config(crtc
, fb
, mode
);
11076 if (IS_ERR(pipe_config
)) {
11077 ret
= PTR_ERR(pipe_config
);
11078 pipe_config
= NULL
;
11082 intel_dump_pipe_config(to_intel_crtc(crtc
), pipe_config
,
11084 to_intel_crtc(crtc
)->new_config
= pipe_config
;
11088 * See if the config requires any additional preparation, e.g.
11089 * to adjust global state with pipes off. We need to do this
11090 * here so we can get the modeset_pipe updated config for the new
11091 * mode set on this crtc. For other crtcs we need to use the
11092 * adjusted_mode bits in the crtc directly.
11094 if (IS_VALLEYVIEW(dev
)) {
11095 valleyview_modeset_global_pipes(dev
, &prepare_pipes
);
11097 /* may have added more to prepare_pipes than we should */
11098 prepare_pipes
&= ~disable_pipes
;
11101 for_each_intel_crtc_masked(dev
, disable_pipes
, intel_crtc
)
11102 intel_crtc_disable(&intel_crtc
->base
);
11104 for_each_intel_crtc_masked(dev
, prepare_pipes
, intel_crtc
) {
11105 if (intel_crtc
->base
.enabled
)
11106 dev_priv
->display
.crtc_disable(&intel_crtc
->base
);
11109 /* crtc->mode is already used by the ->mode_set callbacks, hence we need
11110 * to set it here already despite that we pass it down the callchain.
11112 if (modeset_pipes
) {
11113 crtc
->mode
= *mode
;
11114 /* mode_set/enable/disable functions rely on a correct pipe
11116 to_intel_crtc(crtc
)->config
= *pipe_config
;
11117 to_intel_crtc(crtc
)->new_config
= &to_intel_crtc(crtc
)->config
;
11120 * Calculate and store various constants which
11121 * are later needed by vblank and swap-completion
11122 * timestamping. They are derived from true hwmode.
11124 drm_calc_timestamping_constants(crtc
,
11125 &pipe_config
->adjusted_mode
);
11128 /* Only after disabling all output pipelines that will be changed can we
11129 * update the the output configuration. */
11130 intel_modeset_update_state(dev
, prepare_pipes
);
11132 if (dev_priv
->display
.modeset_global_resources
)
11133 dev_priv
->display
.modeset_global_resources(dev
);
11135 /* Set up the DPLL and any encoders state that needs to adjust or depend
11138 for_each_intel_crtc_masked(dev
, modeset_pipes
, intel_crtc
) {
11139 struct drm_framebuffer
*old_fb
= crtc
->primary
->fb
;
11140 struct drm_i915_gem_object
*old_obj
= intel_fb_obj(old_fb
);
11141 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
11143 mutex_lock(&dev
->struct_mutex
);
11144 ret
= intel_pin_and_fence_fb_obj(dev
,
11148 DRM_ERROR("pin & fence failed\n");
11149 mutex_unlock(&dev
->struct_mutex
);
11153 intel_unpin_fb_obj(old_obj
);
11154 i915_gem_track_fb(old_obj
, obj
,
11155 INTEL_FRONTBUFFER_PRIMARY(intel_crtc
->pipe
));
11156 mutex_unlock(&dev
->struct_mutex
);
11158 crtc
->primary
->fb
= fb
;
11162 ret
= dev_priv
->display
.crtc_mode_set(&intel_crtc
->base
,
11168 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
11169 for_each_intel_crtc_masked(dev
, prepare_pipes
, intel_crtc
) {
11170 update_scanline_offset(intel_crtc
);
11172 dev_priv
->display
.crtc_enable(&intel_crtc
->base
);
11175 /* FIXME: add subpixel order */
11177 if (ret
&& crtc
->enabled
)
11178 crtc
->mode
= *saved_mode
;
11181 kfree(pipe_config
);
11186 static int intel_set_mode(struct drm_crtc
*crtc
,
11187 struct drm_display_mode
*mode
,
11188 int x
, int y
, struct drm_framebuffer
*fb
)
11192 ret
= __intel_set_mode(crtc
, mode
, x
, y
, fb
);
11195 intel_modeset_check_state(crtc
->dev
);
11200 void intel_crtc_restore_mode(struct drm_crtc
*crtc
)
11202 intel_set_mode(crtc
, &crtc
->mode
, crtc
->x
, crtc
->y
, crtc
->primary
->fb
);
11205 #undef for_each_intel_crtc_masked
11207 static void intel_set_config_free(struct intel_set_config
*config
)
11212 kfree(config
->save_connector_encoders
);
11213 kfree(config
->save_encoder_crtcs
);
11214 kfree(config
->save_crtc_enabled
);
11218 static int intel_set_config_save_state(struct drm_device
*dev
,
11219 struct intel_set_config
*config
)
11221 struct drm_crtc
*crtc
;
11222 struct drm_encoder
*encoder
;
11223 struct drm_connector
*connector
;
11226 config
->save_crtc_enabled
=
11227 kcalloc(dev
->mode_config
.num_crtc
,
11228 sizeof(bool), GFP_KERNEL
);
11229 if (!config
->save_crtc_enabled
)
11232 config
->save_encoder_crtcs
=
11233 kcalloc(dev
->mode_config
.num_encoder
,
11234 sizeof(struct drm_crtc
*), GFP_KERNEL
);
11235 if (!config
->save_encoder_crtcs
)
11238 config
->save_connector_encoders
=
11239 kcalloc(dev
->mode_config
.num_connector
,
11240 sizeof(struct drm_encoder
*), GFP_KERNEL
);
11241 if (!config
->save_connector_encoders
)
11244 /* Copy data. Note that driver private data is not affected.
11245 * Should anything bad happen only the expected state is
11246 * restored, not the drivers personal bookkeeping.
11249 for_each_crtc(dev
, crtc
) {
11250 config
->save_crtc_enabled
[count
++] = crtc
->enabled
;
11254 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
) {
11255 config
->save_encoder_crtcs
[count
++] = encoder
->crtc
;
11259 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
11260 config
->save_connector_encoders
[count
++] = connector
->encoder
;
11266 static void intel_set_config_restore_state(struct drm_device
*dev
,
11267 struct intel_set_config
*config
)
11269 struct intel_crtc
*crtc
;
11270 struct intel_encoder
*encoder
;
11271 struct intel_connector
*connector
;
11275 for_each_intel_crtc(dev
, crtc
) {
11276 crtc
->new_enabled
= config
->save_crtc_enabled
[count
++];
11278 if (crtc
->new_enabled
)
11279 crtc
->new_config
= &crtc
->config
;
11281 crtc
->new_config
= NULL
;
11285 for_each_intel_encoder(dev
, encoder
) {
11286 encoder
->new_crtc
=
11287 to_intel_crtc(config
->save_encoder_crtcs
[count
++]);
11291 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, base
.head
) {
11292 connector
->new_encoder
=
11293 to_intel_encoder(config
->save_connector_encoders
[count
++]);
11298 is_crtc_connector_off(struct drm_mode_set
*set
)
11302 if (set
->num_connectors
== 0)
11305 if (WARN_ON(set
->connectors
== NULL
))
11308 for (i
= 0; i
< set
->num_connectors
; i
++)
11309 if (set
->connectors
[i
]->encoder
&&
11310 set
->connectors
[i
]->encoder
->crtc
== set
->crtc
&&
11311 set
->connectors
[i
]->dpms
!= DRM_MODE_DPMS_ON
)
11318 intel_set_config_compute_mode_changes(struct drm_mode_set
*set
,
11319 struct intel_set_config
*config
)
11322 /* We should be able to check here if the fb has the same properties
11323 * and then just flip_or_move it */
11324 if (is_crtc_connector_off(set
)) {
11325 config
->mode_changed
= true;
11326 } else if (set
->crtc
->primary
->fb
!= set
->fb
) {
11328 * If we have no fb, we can only flip as long as the crtc is
11329 * active, otherwise we need a full mode set. The crtc may
11330 * be active if we've only disabled the primary plane, or
11331 * in fastboot situations.
11333 if (set
->crtc
->primary
->fb
== NULL
) {
11334 struct intel_crtc
*intel_crtc
=
11335 to_intel_crtc(set
->crtc
);
11337 if (intel_crtc
->active
) {
11338 DRM_DEBUG_KMS("crtc has no fb, will flip\n");
11339 config
->fb_changed
= true;
11341 DRM_DEBUG_KMS("inactive crtc, full mode set\n");
11342 config
->mode_changed
= true;
11344 } else if (set
->fb
== NULL
) {
11345 config
->mode_changed
= true;
11346 } else if (set
->fb
->pixel_format
!=
11347 set
->crtc
->primary
->fb
->pixel_format
) {
11348 config
->mode_changed
= true;
11350 config
->fb_changed
= true;
11354 if (set
->fb
&& (set
->x
!= set
->crtc
->x
|| set
->y
!= set
->crtc
->y
))
11355 config
->fb_changed
= true;
11357 if (set
->mode
&& !drm_mode_equal(set
->mode
, &set
->crtc
->mode
)) {
11358 DRM_DEBUG_KMS("modes are different, full mode set\n");
11359 drm_mode_debug_printmodeline(&set
->crtc
->mode
);
11360 drm_mode_debug_printmodeline(set
->mode
);
11361 config
->mode_changed
= true;
11364 DRM_DEBUG_KMS("computed changes for [CRTC:%d], mode_changed=%d, fb_changed=%d\n",
11365 set
->crtc
->base
.id
, config
->mode_changed
, config
->fb_changed
);
11369 intel_modeset_stage_output_state(struct drm_device
*dev
,
11370 struct drm_mode_set
*set
,
11371 struct intel_set_config
*config
)
11373 struct intel_connector
*connector
;
11374 struct intel_encoder
*encoder
;
11375 struct intel_crtc
*crtc
;
11378 /* The upper layers ensure that we either disable a crtc or have a list
11379 * of connectors. For paranoia, double-check this. */
11380 WARN_ON(!set
->fb
&& (set
->num_connectors
!= 0));
11381 WARN_ON(set
->fb
&& (set
->num_connectors
== 0));
11383 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
11385 /* Otherwise traverse passed in connector list and get encoders
11387 for (ro
= 0; ro
< set
->num_connectors
; ro
++) {
11388 if (set
->connectors
[ro
] == &connector
->base
) {
11389 connector
->new_encoder
= intel_find_encoder(connector
, to_intel_crtc(set
->crtc
)->pipe
);
11394 /* If we disable the crtc, disable all its connectors. Also, if
11395 * the connector is on the changing crtc but not on the new
11396 * connector list, disable it. */
11397 if ((!set
->fb
|| ro
== set
->num_connectors
) &&
11398 connector
->base
.encoder
&&
11399 connector
->base
.encoder
->crtc
== set
->crtc
) {
11400 connector
->new_encoder
= NULL
;
11402 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
11403 connector
->base
.base
.id
,
11404 connector
->base
.name
);
11408 if (&connector
->new_encoder
->base
!= connector
->base
.encoder
) {
11409 DRM_DEBUG_KMS("encoder changed, full mode switch\n");
11410 config
->mode_changed
= true;
11413 /* connector->new_encoder is now updated for all connectors. */
11415 /* Update crtc of enabled connectors. */
11416 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
11418 struct drm_crtc
*new_crtc
;
11420 if (!connector
->new_encoder
)
11423 new_crtc
= connector
->new_encoder
->base
.crtc
;
11425 for (ro
= 0; ro
< set
->num_connectors
; ro
++) {
11426 if (set
->connectors
[ro
] == &connector
->base
)
11427 new_crtc
= set
->crtc
;
11430 /* Make sure the new CRTC will work with the encoder */
11431 if (!drm_encoder_crtc_ok(&connector
->new_encoder
->base
,
11435 connector
->new_encoder
->new_crtc
= to_intel_crtc(new_crtc
);
11437 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
11438 connector
->base
.base
.id
,
11439 connector
->base
.name
,
11440 new_crtc
->base
.id
);
11443 /* Check for any encoders that needs to be disabled. */
11444 for_each_intel_encoder(dev
, encoder
) {
11445 int num_connectors
= 0;
11446 list_for_each_entry(connector
,
11447 &dev
->mode_config
.connector_list
,
11449 if (connector
->new_encoder
== encoder
) {
11450 WARN_ON(!connector
->new_encoder
->new_crtc
);
11455 if (num_connectors
== 0)
11456 encoder
->new_crtc
= NULL
;
11457 else if (num_connectors
> 1)
11460 /* Only now check for crtc changes so we don't miss encoders
11461 * that will be disabled. */
11462 if (&encoder
->new_crtc
->base
!= encoder
->base
.crtc
) {
11463 DRM_DEBUG_KMS("crtc changed, full mode switch\n");
11464 config
->mode_changed
= true;
11467 /* Now we've also updated encoder->new_crtc for all encoders. */
11468 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
11470 if (connector
->new_encoder
)
11471 if (connector
->new_encoder
!= connector
->encoder
)
11472 connector
->encoder
= connector
->new_encoder
;
11474 for_each_intel_crtc(dev
, crtc
) {
11475 crtc
->new_enabled
= false;
11477 for_each_intel_encoder(dev
, encoder
) {
11478 if (encoder
->new_crtc
== crtc
) {
11479 crtc
->new_enabled
= true;
11484 if (crtc
->new_enabled
!= crtc
->base
.enabled
) {
11485 DRM_DEBUG_KMS("crtc %sabled, full mode switch\n",
11486 crtc
->new_enabled
? "en" : "dis");
11487 config
->mode_changed
= true;
11490 if (crtc
->new_enabled
)
11491 crtc
->new_config
= &crtc
->config
;
11493 crtc
->new_config
= NULL
;
11499 static void disable_crtc_nofb(struct intel_crtc
*crtc
)
11501 struct drm_device
*dev
= crtc
->base
.dev
;
11502 struct intel_encoder
*encoder
;
11503 struct intel_connector
*connector
;
11505 DRM_DEBUG_KMS("Trying to restore without FB -> disabling pipe %c\n",
11506 pipe_name(crtc
->pipe
));
11508 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, base
.head
) {
11509 if (connector
->new_encoder
&&
11510 connector
->new_encoder
->new_crtc
== crtc
)
11511 connector
->new_encoder
= NULL
;
11514 for_each_intel_encoder(dev
, encoder
) {
11515 if (encoder
->new_crtc
== crtc
)
11516 encoder
->new_crtc
= NULL
;
11519 crtc
->new_enabled
= false;
11520 crtc
->new_config
= NULL
;
11523 static int intel_crtc_set_config(struct drm_mode_set
*set
)
11525 struct drm_device
*dev
;
11526 struct drm_mode_set save_set
;
11527 struct intel_set_config
*config
;
11531 BUG_ON(!set
->crtc
);
11532 BUG_ON(!set
->crtc
->helper_private
);
11534 /* Enforce sane interface api - has been abused by the fb helper. */
11535 BUG_ON(!set
->mode
&& set
->fb
);
11536 BUG_ON(set
->fb
&& set
->num_connectors
== 0);
11539 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
11540 set
->crtc
->base
.id
, set
->fb
->base
.id
,
11541 (int)set
->num_connectors
, set
->x
, set
->y
);
11543 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set
->crtc
->base
.id
);
11546 dev
= set
->crtc
->dev
;
11549 config
= kzalloc(sizeof(*config
), GFP_KERNEL
);
11553 ret
= intel_set_config_save_state(dev
, config
);
11557 save_set
.crtc
= set
->crtc
;
11558 save_set
.mode
= &set
->crtc
->mode
;
11559 save_set
.x
= set
->crtc
->x
;
11560 save_set
.y
= set
->crtc
->y
;
11561 save_set
.fb
= set
->crtc
->primary
->fb
;
11563 /* Compute whether we need a full modeset, only an fb base update or no
11564 * change at all. In the future we might also check whether only the
11565 * mode changed, e.g. for LVDS where we only change the panel fitter in
11567 intel_set_config_compute_mode_changes(set
, config
);
11569 ret
= intel_modeset_stage_output_state(dev
, set
, config
);
11573 if (config
->mode_changed
) {
11574 ret
= intel_set_mode(set
->crtc
, set
->mode
,
11575 set
->x
, set
->y
, set
->fb
);
11576 } else if (config
->fb_changed
) {
11577 struct intel_crtc
*intel_crtc
= to_intel_crtc(set
->crtc
);
11579 intel_crtc_wait_for_pending_flips(set
->crtc
);
11581 ret
= intel_pipe_set_base(set
->crtc
,
11582 set
->x
, set
->y
, set
->fb
);
11585 * We need to make sure the primary plane is re-enabled if it
11586 * has previously been turned off.
11588 if (!intel_crtc
->primary_enabled
&& ret
== 0) {
11589 WARN_ON(!intel_crtc
->active
);
11590 intel_enable_primary_hw_plane(set
->crtc
->primary
, set
->crtc
);
11594 * In the fastboot case this may be our only check of the
11595 * state after boot. It would be better to only do it on
11596 * the first update, but we don't have a nice way of doing that
11597 * (and really, set_config isn't used much for high freq page
11598 * flipping, so increasing its cost here shouldn't be a big
11601 if (i915
.fastboot
&& ret
== 0)
11602 intel_modeset_check_state(set
->crtc
->dev
);
11606 DRM_DEBUG_KMS("failed to set mode on [CRTC:%d], err = %d\n",
11607 set
->crtc
->base
.id
, ret
);
11609 intel_set_config_restore_state(dev
, config
);
11612 * HACK: if the pipe was on, but we didn't have a framebuffer,
11613 * force the pipe off to avoid oopsing in the modeset code
11614 * due to fb==NULL. This should only happen during boot since
11615 * we don't yet reconstruct the FB from the hardware state.
11617 if (to_intel_crtc(save_set
.crtc
)->new_enabled
&& !save_set
.fb
)
11618 disable_crtc_nofb(to_intel_crtc(save_set
.crtc
));
11620 /* Try to restore the config */
11621 if (config
->mode_changed
&&
11622 intel_set_mode(save_set
.crtc
, save_set
.mode
,
11623 save_set
.x
, save_set
.y
, save_set
.fb
))
11624 DRM_ERROR("failed to restore config after modeset failure\n");
11628 intel_set_config_free(config
);
11632 static const struct drm_crtc_funcs intel_crtc_funcs
= {
11633 .gamma_set
= intel_crtc_gamma_set
,
11634 .set_config
= intel_crtc_set_config
,
11635 .destroy
= intel_crtc_destroy
,
11636 .page_flip
= intel_crtc_page_flip
,
11639 static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private
*dev_priv
,
11640 struct intel_shared_dpll
*pll
,
11641 struct intel_dpll_hw_state
*hw_state
)
11645 if (!intel_display_power_enabled(dev_priv
, POWER_DOMAIN_PLLS
))
11648 val
= I915_READ(PCH_DPLL(pll
->id
));
11649 hw_state
->dpll
= val
;
11650 hw_state
->fp0
= I915_READ(PCH_FP0(pll
->id
));
11651 hw_state
->fp1
= I915_READ(PCH_FP1(pll
->id
));
11653 return val
& DPLL_VCO_ENABLE
;
11656 static void ibx_pch_dpll_mode_set(struct drm_i915_private
*dev_priv
,
11657 struct intel_shared_dpll
*pll
)
11659 I915_WRITE(PCH_FP0(pll
->id
), pll
->hw_state
.fp0
);
11660 I915_WRITE(PCH_FP1(pll
->id
), pll
->hw_state
.fp1
);
11663 static void ibx_pch_dpll_enable(struct drm_i915_private
*dev_priv
,
11664 struct intel_shared_dpll
*pll
)
11666 /* PCH refclock must be enabled first */
11667 ibx_assert_pch_refclk_enabled(dev_priv
);
11669 I915_WRITE(PCH_DPLL(pll
->id
), pll
->hw_state
.dpll
);
11671 /* Wait for the clocks to stabilize. */
11672 POSTING_READ(PCH_DPLL(pll
->id
));
11675 /* The pixel multiplier can only be updated once the
11676 * DPLL is enabled and the clocks are stable.
11678 * So write it again.
11680 I915_WRITE(PCH_DPLL(pll
->id
), pll
->hw_state
.dpll
);
11681 POSTING_READ(PCH_DPLL(pll
->id
));
11685 static void ibx_pch_dpll_disable(struct drm_i915_private
*dev_priv
,
11686 struct intel_shared_dpll
*pll
)
11688 struct drm_device
*dev
= dev_priv
->dev
;
11689 struct intel_crtc
*crtc
;
11691 /* Make sure no transcoder isn't still depending on us. */
11692 for_each_intel_crtc(dev
, crtc
) {
11693 if (intel_crtc_to_shared_dpll(crtc
) == pll
)
11694 assert_pch_transcoder_disabled(dev_priv
, crtc
->pipe
);
11697 I915_WRITE(PCH_DPLL(pll
->id
), 0);
11698 POSTING_READ(PCH_DPLL(pll
->id
));
11702 static char *ibx_pch_dpll_names
[] = {
11707 static void ibx_pch_dpll_init(struct drm_device
*dev
)
11709 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11712 dev_priv
->num_shared_dpll
= 2;
11714 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
11715 dev_priv
->shared_dplls
[i
].id
= i
;
11716 dev_priv
->shared_dplls
[i
].name
= ibx_pch_dpll_names
[i
];
11717 dev_priv
->shared_dplls
[i
].mode_set
= ibx_pch_dpll_mode_set
;
11718 dev_priv
->shared_dplls
[i
].enable
= ibx_pch_dpll_enable
;
11719 dev_priv
->shared_dplls
[i
].disable
= ibx_pch_dpll_disable
;
11720 dev_priv
->shared_dplls
[i
].get_hw_state
=
11721 ibx_pch_dpll_get_hw_state
;
11725 static void intel_shared_dpll_init(struct drm_device
*dev
)
11727 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11730 intel_ddi_pll_init(dev
);
11731 else if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
11732 ibx_pch_dpll_init(dev
);
11734 dev_priv
->num_shared_dpll
= 0;
11736 BUG_ON(dev_priv
->num_shared_dpll
> I915_NUM_PLLS
);
11740 intel_primary_plane_disable(struct drm_plane
*plane
)
11742 struct drm_device
*dev
= plane
->dev
;
11743 struct intel_crtc
*intel_crtc
;
11748 BUG_ON(!plane
->crtc
);
11750 intel_crtc
= to_intel_crtc(plane
->crtc
);
11753 * Even though we checked plane->fb above, it's still possible that
11754 * the primary plane has been implicitly disabled because the crtc
11755 * coordinates given weren't visible, or because we detected
11756 * that it was 100% covered by a sprite plane. Or, the CRTC may be
11757 * off and we've set a fb, but haven't actually turned on the CRTC yet.
11758 * In either case, we need to unpin the FB and let the fb pointer get
11759 * updated, but otherwise we don't need to touch the hardware.
11761 if (!intel_crtc
->primary_enabled
)
11762 goto disable_unpin
;
11764 intel_crtc_wait_for_pending_flips(plane
->crtc
);
11765 intel_disable_primary_hw_plane(plane
, plane
->crtc
);
11768 mutex_lock(&dev
->struct_mutex
);
11769 i915_gem_track_fb(intel_fb_obj(plane
->fb
), NULL
,
11770 INTEL_FRONTBUFFER_PRIMARY(intel_crtc
->pipe
));
11771 intel_unpin_fb_obj(intel_fb_obj(plane
->fb
));
11772 mutex_unlock(&dev
->struct_mutex
);
11779 intel_check_primary_plane(struct drm_plane
*plane
,
11780 struct intel_plane_state
*state
)
11782 struct drm_crtc
*crtc
= state
->crtc
;
11783 struct drm_framebuffer
*fb
= state
->fb
;
11784 struct drm_rect
*dest
= &state
->dst
;
11785 struct drm_rect
*src
= &state
->src
;
11786 const struct drm_rect
*clip
= &state
->clip
;
11788 return drm_plane_helper_check_update(plane
, crtc
, fb
,
11790 DRM_PLANE_HELPER_NO_SCALING
,
11791 DRM_PLANE_HELPER_NO_SCALING
,
11792 false, true, &state
->visible
);
11796 intel_commit_primary_plane(struct drm_plane
*plane
,
11797 struct intel_plane_state
*state
)
11799 struct drm_crtc
*crtc
= state
->crtc
;
11800 struct drm_framebuffer
*fb
= state
->fb
;
11801 struct drm_device
*dev
= crtc
->dev
;
11802 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11803 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11804 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
11805 struct drm_i915_gem_object
*old_obj
= intel_fb_obj(plane
->fb
);
11806 struct intel_plane
*intel_plane
= to_intel_plane(plane
);
11807 struct drm_rect
*src
= &state
->src
;
11810 intel_crtc_wait_for_pending_flips(crtc
);
11813 * If clipping results in a non-visible primary plane, we'll disable
11814 * the primary plane. Note that this is a bit different than what
11815 * happens if userspace explicitly disables the plane by passing fb=0
11816 * because plane->fb still gets set and pinned.
11818 if (!state
->visible
) {
11819 mutex_lock(&dev
->struct_mutex
);
11822 * Try to pin the new fb first so that we can bail out if we
11825 if (plane
->fb
!= fb
) {
11826 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, NULL
);
11828 mutex_unlock(&dev
->struct_mutex
);
11833 i915_gem_track_fb(old_obj
, obj
,
11834 INTEL_FRONTBUFFER_PRIMARY(intel_crtc
->pipe
));
11836 if (intel_crtc
->primary_enabled
)
11837 intel_disable_primary_hw_plane(plane
, crtc
);
11840 if (plane
->fb
!= fb
)
11842 intel_unpin_fb_obj(old_obj
);
11844 mutex_unlock(&dev
->struct_mutex
);
11847 if (intel_crtc
&& intel_crtc
->active
&&
11848 intel_crtc
->primary_enabled
) {
11850 * FBC does not work on some platforms for rotated
11851 * planes, so disable it when rotation is not 0 and
11852 * update it when rotation is set back to 0.
11854 * FIXME: This is redundant with the fbc update done in
11855 * the primary plane enable function except that that
11856 * one is done too late. We eventually need to unify
11859 if (INTEL_INFO(dev
)->gen
<= 4 && !IS_G4X(dev
) &&
11860 dev_priv
->fbc
.plane
== intel_crtc
->plane
&&
11861 intel_plane
->rotation
!= BIT(DRM_ROTATE_0
)) {
11862 intel_disable_fbc(dev
);
11865 ret
= intel_pipe_set_base(crtc
, src
->x1
, src
->y1
, fb
);
11869 if (!intel_crtc
->primary_enabled
)
11870 intel_enable_primary_hw_plane(plane
, crtc
);
11873 intel_plane
->crtc_x
= state
->orig_dst
.x1
;
11874 intel_plane
->crtc_y
= state
->orig_dst
.y1
;
11875 intel_plane
->crtc_w
= drm_rect_width(&state
->orig_dst
);
11876 intel_plane
->crtc_h
= drm_rect_height(&state
->orig_dst
);
11877 intel_plane
->src_x
= state
->orig_src
.x1
;
11878 intel_plane
->src_y
= state
->orig_src
.y1
;
11879 intel_plane
->src_w
= drm_rect_width(&state
->orig_src
);
11880 intel_plane
->src_h
= drm_rect_height(&state
->orig_src
);
11881 intel_plane
->obj
= obj
;
11887 intel_primary_plane_setplane(struct drm_plane
*plane
, struct drm_crtc
*crtc
,
11888 struct drm_framebuffer
*fb
, int crtc_x
, int crtc_y
,
11889 unsigned int crtc_w
, unsigned int crtc_h
,
11890 uint32_t src_x
, uint32_t src_y
,
11891 uint32_t src_w
, uint32_t src_h
)
11893 struct intel_plane_state state
;
11894 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11900 /* sample coordinates in 16.16 fixed point */
11901 state
.src
.x1
= src_x
;
11902 state
.src
.x2
= src_x
+ src_w
;
11903 state
.src
.y1
= src_y
;
11904 state
.src
.y2
= src_y
+ src_h
;
11906 /* integer pixels */
11907 state
.dst
.x1
= crtc_x
;
11908 state
.dst
.x2
= crtc_x
+ crtc_w
;
11909 state
.dst
.y1
= crtc_y
;
11910 state
.dst
.y2
= crtc_y
+ crtc_h
;
11914 state
.clip
.x2
= intel_crtc
->active
? intel_crtc
->config
.pipe_src_w
: 0;
11915 state
.clip
.y2
= intel_crtc
->active
? intel_crtc
->config
.pipe_src_h
: 0;
11917 state
.orig_src
= state
.src
;
11918 state
.orig_dst
= state
.dst
;
11920 ret
= intel_check_primary_plane(plane
, &state
);
11924 intel_commit_primary_plane(plane
, &state
);
11929 /* Common destruction function for both primary and cursor planes */
11930 static void intel_plane_destroy(struct drm_plane
*plane
)
11932 struct intel_plane
*intel_plane
= to_intel_plane(plane
);
11933 drm_plane_cleanup(plane
);
11934 kfree(intel_plane
);
11937 static const struct drm_plane_funcs intel_primary_plane_funcs
= {
11938 .update_plane
= intel_primary_plane_setplane
,
11939 .disable_plane
= intel_primary_plane_disable
,
11940 .destroy
= intel_plane_destroy
,
11941 .set_property
= intel_plane_set_property
11944 static struct drm_plane
*intel_primary_plane_create(struct drm_device
*dev
,
11947 struct intel_plane
*primary
;
11948 const uint32_t *intel_primary_formats
;
11951 primary
= kzalloc(sizeof(*primary
), GFP_KERNEL
);
11952 if (primary
== NULL
)
11955 primary
->can_scale
= false;
11956 primary
->max_downscale
= 1;
11957 primary
->pipe
= pipe
;
11958 primary
->plane
= pipe
;
11959 primary
->rotation
= BIT(DRM_ROTATE_0
);
11960 if (HAS_FBC(dev
) && INTEL_INFO(dev
)->gen
< 4)
11961 primary
->plane
= !pipe
;
11963 if (INTEL_INFO(dev
)->gen
<= 3) {
11964 intel_primary_formats
= intel_primary_formats_gen2
;
11965 num_formats
= ARRAY_SIZE(intel_primary_formats_gen2
);
11967 intel_primary_formats
= intel_primary_formats_gen4
;
11968 num_formats
= ARRAY_SIZE(intel_primary_formats_gen4
);
11971 drm_universal_plane_init(dev
, &primary
->base
, 0,
11972 &intel_primary_plane_funcs
,
11973 intel_primary_formats
, num_formats
,
11974 DRM_PLANE_TYPE_PRIMARY
);
11976 if (INTEL_INFO(dev
)->gen
>= 4) {
11977 if (!dev
->mode_config
.rotation_property
)
11978 dev
->mode_config
.rotation_property
=
11979 drm_mode_create_rotation_property(dev
,
11980 BIT(DRM_ROTATE_0
) |
11981 BIT(DRM_ROTATE_180
));
11982 if (dev
->mode_config
.rotation_property
)
11983 drm_object_attach_property(&primary
->base
.base
,
11984 dev
->mode_config
.rotation_property
,
11985 primary
->rotation
);
11988 return &primary
->base
;
11992 intel_cursor_plane_disable(struct drm_plane
*plane
)
11997 BUG_ON(!plane
->crtc
);
11999 return intel_crtc_cursor_set_obj(plane
->crtc
, NULL
, 0, 0);
12003 intel_check_cursor_plane(struct drm_plane
*plane
,
12004 struct intel_plane_state
*state
)
12006 struct drm_crtc
*crtc
= state
->crtc
;
12007 struct drm_framebuffer
*fb
= state
->fb
;
12008 struct drm_rect
*dest
= &state
->dst
;
12009 struct drm_rect
*src
= &state
->src
;
12010 const struct drm_rect
*clip
= &state
->clip
;
12012 return drm_plane_helper_check_update(plane
, crtc
, fb
,
12014 DRM_PLANE_HELPER_NO_SCALING
,
12015 DRM_PLANE_HELPER_NO_SCALING
,
12016 true, true, &state
->visible
);
12020 intel_commit_cursor_plane(struct drm_plane
*plane
,
12021 struct intel_plane_state
*state
)
12023 struct drm_crtc
*crtc
= state
->crtc
;
12024 struct drm_framebuffer
*fb
= state
->fb
;
12025 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
12026 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
12027 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
12028 int crtc_w
, crtc_h
;
12030 crtc
->cursor_x
= state
->orig_dst
.x1
;
12031 crtc
->cursor_y
= state
->orig_dst
.y1
;
12032 if (fb
!= crtc
->cursor
->fb
) {
12033 crtc_w
= drm_rect_width(&state
->orig_dst
);
12034 crtc_h
= drm_rect_height(&state
->orig_dst
);
12035 return intel_crtc_cursor_set_obj(crtc
, obj
, crtc_w
, crtc_h
);
12037 intel_crtc_update_cursor(crtc
, state
->visible
);
12039 intel_frontbuffer_flip(crtc
->dev
,
12040 INTEL_FRONTBUFFER_CURSOR(intel_crtc
->pipe
));
12047 intel_cursor_plane_update(struct drm_plane
*plane
, struct drm_crtc
*crtc
,
12048 struct drm_framebuffer
*fb
, int crtc_x
, int crtc_y
,
12049 unsigned int crtc_w
, unsigned int crtc_h
,
12050 uint32_t src_x
, uint32_t src_y
,
12051 uint32_t src_w
, uint32_t src_h
)
12053 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
12054 struct intel_plane_state state
;
12060 /* sample coordinates in 16.16 fixed point */
12061 state
.src
.x1
= src_x
;
12062 state
.src
.x2
= src_x
+ src_w
;
12063 state
.src
.y1
= src_y
;
12064 state
.src
.y2
= src_y
+ src_h
;
12066 /* integer pixels */
12067 state
.dst
.x1
= crtc_x
;
12068 state
.dst
.x2
= crtc_x
+ crtc_w
;
12069 state
.dst
.y1
= crtc_y
;
12070 state
.dst
.y2
= crtc_y
+ crtc_h
;
12074 state
.clip
.x2
= intel_crtc
->active
? intel_crtc
->config
.pipe_src_w
: 0;
12075 state
.clip
.y2
= intel_crtc
->active
? intel_crtc
->config
.pipe_src_h
: 0;
12077 state
.orig_src
= state
.src
;
12078 state
.orig_dst
= state
.dst
;
12080 ret
= intel_check_cursor_plane(plane
, &state
);
12084 return intel_commit_cursor_plane(plane
, &state
);
12087 static const struct drm_plane_funcs intel_cursor_plane_funcs
= {
12088 .update_plane
= intel_cursor_plane_update
,
12089 .disable_plane
= intel_cursor_plane_disable
,
12090 .destroy
= intel_plane_destroy
,
12093 static struct drm_plane
*intel_cursor_plane_create(struct drm_device
*dev
,
12096 struct intel_plane
*cursor
;
12098 cursor
= kzalloc(sizeof(*cursor
), GFP_KERNEL
);
12099 if (cursor
== NULL
)
12102 cursor
->can_scale
= false;
12103 cursor
->max_downscale
= 1;
12104 cursor
->pipe
= pipe
;
12105 cursor
->plane
= pipe
;
12107 drm_universal_plane_init(dev
, &cursor
->base
, 0,
12108 &intel_cursor_plane_funcs
,
12109 intel_cursor_formats
,
12110 ARRAY_SIZE(intel_cursor_formats
),
12111 DRM_PLANE_TYPE_CURSOR
);
12112 return &cursor
->base
;
12115 static void intel_crtc_init(struct drm_device
*dev
, int pipe
)
12117 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12118 struct intel_crtc
*intel_crtc
;
12119 struct drm_plane
*primary
= NULL
;
12120 struct drm_plane
*cursor
= NULL
;
12123 intel_crtc
= kzalloc(sizeof(*intel_crtc
), GFP_KERNEL
);
12124 if (intel_crtc
== NULL
)
12127 primary
= intel_primary_plane_create(dev
, pipe
);
12131 cursor
= intel_cursor_plane_create(dev
, pipe
);
12135 ret
= drm_crtc_init_with_planes(dev
, &intel_crtc
->base
, primary
,
12136 cursor
, &intel_crtc_funcs
);
12140 drm_mode_crtc_set_gamma_size(&intel_crtc
->base
, 256);
12141 for (i
= 0; i
< 256; i
++) {
12142 intel_crtc
->lut_r
[i
] = i
;
12143 intel_crtc
->lut_g
[i
] = i
;
12144 intel_crtc
->lut_b
[i
] = i
;
12148 * On gen2/3 only plane A can do fbc, but the panel fitter and lvds port
12149 * is hooked to pipe B. Hence we want plane A feeding pipe B.
12151 intel_crtc
->pipe
= pipe
;
12152 intel_crtc
->plane
= pipe
;
12153 if (HAS_FBC(dev
) && INTEL_INFO(dev
)->gen
< 4) {
12154 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
12155 intel_crtc
->plane
= !pipe
;
12158 intel_crtc
->cursor_base
= ~0;
12159 intel_crtc
->cursor_cntl
= ~0;
12160 intel_crtc
->cursor_size
= ~0;
12162 BUG_ON(pipe
>= ARRAY_SIZE(dev_priv
->plane_to_crtc_mapping
) ||
12163 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] != NULL
);
12164 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] = &intel_crtc
->base
;
12165 dev_priv
->pipe_to_crtc_mapping
[intel_crtc
->pipe
] = &intel_crtc
->base
;
12167 drm_crtc_helper_add(&intel_crtc
->base
, &intel_helper_funcs
);
12169 WARN_ON(drm_crtc_index(&intel_crtc
->base
) != intel_crtc
->pipe
);
12174 drm_plane_cleanup(primary
);
12176 drm_plane_cleanup(cursor
);
12180 enum pipe
intel_get_pipe_from_connector(struct intel_connector
*connector
)
12182 struct drm_encoder
*encoder
= connector
->base
.encoder
;
12183 struct drm_device
*dev
= connector
->base
.dev
;
12185 WARN_ON(!drm_modeset_is_locked(&dev
->mode_config
.connection_mutex
));
12188 return INVALID_PIPE
;
12190 return to_intel_crtc(encoder
->crtc
)->pipe
;
12193 int intel_get_pipe_from_crtc_id(struct drm_device
*dev
, void *data
,
12194 struct drm_file
*file
)
12196 struct drm_i915_get_pipe_from_crtc_id
*pipe_from_crtc_id
= data
;
12197 struct drm_crtc
*drmmode_crtc
;
12198 struct intel_crtc
*crtc
;
12200 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
12203 drmmode_crtc
= drm_crtc_find(dev
, pipe_from_crtc_id
->crtc_id
);
12205 if (!drmmode_crtc
) {
12206 DRM_ERROR("no such CRTC id\n");
12210 crtc
= to_intel_crtc(drmmode_crtc
);
12211 pipe_from_crtc_id
->pipe
= crtc
->pipe
;
12216 static int intel_encoder_clones(struct intel_encoder
*encoder
)
12218 struct drm_device
*dev
= encoder
->base
.dev
;
12219 struct intel_encoder
*source_encoder
;
12220 int index_mask
= 0;
12223 for_each_intel_encoder(dev
, source_encoder
) {
12224 if (encoders_cloneable(encoder
, source_encoder
))
12225 index_mask
|= (1 << entry
);
12233 static bool has_edp_a(struct drm_device
*dev
)
12235 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12237 if (!IS_MOBILE(dev
))
12240 if ((I915_READ(DP_A
) & DP_DETECTED
) == 0)
12243 if (IS_GEN5(dev
) && (I915_READ(FUSE_STRAP
) & ILK_eDP_A_DISABLE
))
12249 const char *intel_output_name(int output
)
12251 static const char *names
[] = {
12252 [INTEL_OUTPUT_UNUSED
] = "Unused",
12253 [INTEL_OUTPUT_ANALOG
] = "Analog",
12254 [INTEL_OUTPUT_DVO
] = "DVO",
12255 [INTEL_OUTPUT_SDVO
] = "SDVO",
12256 [INTEL_OUTPUT_LVDS
] = "LVDS",
12257 [INTEL_OUTPUT_TVOUT
] = "TV",
12258 [INTEL_OUTPUT_HDMI
] = "HDMI",
12259 [INTEL_OUTPUT_DISPLAYPORT
] = "DisplayPort",
12260 [INTEL_OUTPUT_EDP
] = "eDP",
12261 [INTEL_OUTPUT_DSI
] = "DSI",
12262 [INTEL_OUTPUT_UNKNOWN
] = "Unknown",
12265 if (output
< 0 || output
>= ARRAY_SIZE(names
) || !names
[output
])
12268 return names
[output
];
12271 static bool intel_crt_present(struct drm_device
*dev
)
12273 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12278 if (IS_CHERRYVIEW(dev
))
12281 if (IS_VALLEYVIEW(dev
) && !dev_priv
->vbt
.int_crt_support
)
12287 static void intel_setup_outputs(struct drm_device
*dev
)
12289 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12290 struct intel_encoder
*encoder
;
12291 bool dpd_is_edp
= false;
12293 intel_lvds_init(dev
);
12295 if (intel_crt_present(dev
))
12296 intel_crt_init(dev
);
12298 if (HAS_DDI(dev
)) {
12301 /* Haswell uses DDI functions to detect digital outputs */
12302 found
= I915_READ(DDI_BUF_CTL_A
) & DDI_INIT_DISPLAY_DETECTED
;
12303 /* DDI A only supports eDP */
12305 intel_ddi_init(dev
, PORT_A
);
12307 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
12309 found
= I915_READ(SFUSE_STRAP
);
12311 if (found
& SFUSE_STRAP_DDIB_DETECTED
)
12312 intel_ddi_init(dev
, PORT_B
);
12313 if (found
& SFUSE_STRAP_DDIC_DETECTED
)
12314 intel_ddi_init(dev
, PORT_C
);
12315 if (found
& SFUSE_STRAP_DDID_DETECTED
)
12316 intel_ddi_init(dev
, PORT_D
);
12317 } else if (HAS_PCH_SPLIT(dev
)) {
12319 dpd_is_edp
= intel_dp_is_edp(dev
, PORT_D
);
12321 if (has_edp_a(dev
))
12322 intel_dp_init(dev
, DP_A
, PORT_A
);
12324 if (I915_READ(PCH_HDMIB
) & SDVO_DETECTED
) {
12325 /* PCH SDVOB multiplex with HDMIB */
12326 found
= intel_sdvo_init(dev
, PCH_SDVOB
, true);
12328 intel_hdmi_init(dev
, PCH_HDMIB
, PORT_B
);
12329 if (!found
&& (I915_READ(PCH_DP_B
) & DP_DETECTED
))
12330 intel_dp_init(dev
, PCH_DP_B
, PORT_B
);
12333 if (I915_READ(PCH_HDMIC
) & SDVO_DETECTED
)
12334 intel_hdmi_init(dev
, PCH_HDMIC
, PORT_C
);
12336 if (!dpd_is_edp
&& I915_READ(PCH_HDMID
) & SDVO_DETECTED
)
12337 intel_hdmi_init(dev
, PCH_HDMID
, PORT_D
);
12339 if (I915_READ(PCH_DP_C
) & DP_DETECTED
)
12340 intel_dp_init(dev
, PCH_DP_C
, PORT_C
);
12342 if (I915_READ(PCH_DP_D
) & DP_DETECTED
)
12343 intel_dp_init(dev
, PCH_DP_D
, PORT_D
);
12344 } else if (IS_VALLEYVIEW(dev
)) {
12345 if (I915_READ(VLV_DISPLAY_BASE
+ GEN4_HDMIB
) & SDVO_DETECTED
) {
12346 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ GEN4_HDMIB
,
12348 if (I915_READ(VLV_DISPLAY_BASE
+ DP_B
) & DP_DETECTED
)
12349 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_B
, PORT_B
);
12352 if (I915_READ(VLV_DISPLAY_BASE
+ GEN4_HDMIC
) & SDVO_DETECTED
) {
12353 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ GEN4_HDMIC
,
12355 if (I915_READ(VLV_DISPLAY_BASE
+ DP_C
) & DP_DETECTED
)
12356 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_C
, PORT_C
);
12359 if (IS_CHERRYVIEW(dev
)) {
12360 if (I915_READ(VLV_DISPLAY_BASE
+ CHV_HDMID
) & SDVO_DETECTED
) {
12361 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ CHV_HDMID
,
12363 if (I915_READ(VLV_DISPLAY_BASE
+ DP_D
) & DP_DETECTED
)
12364 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_D
, PORT_D
);
12368 intel_dsi_init(dev
);
12369 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev
)) {
12370 bool found
= false;
12372 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
12373 DRM_DEBUG_KMS("probing SDVOB\n");
12374 found
= intel_sdvo_init(dev
, GEN3_SDVOB
, true);
12375 if (!found
&& SUPPORTS_INTEGRATED_HDMI(dev
)) {
12376 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
12377 intel_hdmi_init(dev
, GEN4_HDMIB
, PORT_B
);
12380 if (!found
&& SUPPORTS_INTEGRATED_DP(dev
))
12381 intel_dp_init(dev
, DP_B
, PORT_B
);
12384 /* Before G4X SDVOC doesn't have its own detect register */
12386 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
12387 DRM_DEBUG_KMS("probing SDVOC\n");
12388 found
= intel_sdvo_init(dev
, GEN3_SDVOC
, false);
12391 if (!found
&& (I915_READ(GEN3_SDVOC
) & SDVO_DETECTED
)) {
12393 if (SUPPORTS_INTEGRATED_HDMI(dev
)) {
12394 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
12395 intel_hdmi_init(dev
, GEN4_HDMIC
, PORT_C
);
12397 if (SUPPORTS_INTEGRATED_DP(dev
))
12398 intel_dp_init(dev
, DP_C
, PORT_C
);
12401 if (SUPPORTS_INTEGRATED_DP(dev
) &&
12402 (I915_READ(DP_D
) & DP_DETECTED
))
12403 intel_dp_init(dev
, DP_D
, PORT_D
);
12404 } else if (IS_GEN2(dev
))
12405 intel_dvo_init(dev
);
12407 if (SUPPORTS_TV(dev
))
12408 intel_tv_init(dev
);
12410 intel_edp_psr_init(dev
);
12412 for_each_intel_encoder(dev
, encoder
) {
12413 encoder
->base
.possible_crtcs
= encoder
->crtc_mask
;
12414 encoder
->base
.possible_clones
=
12415 intel_encoder_clones(encoder
);
12418 intel_init_pch_refclk(dev
);
12420 drm_helper_move_panel_connectors_to_head(dev
);
12423 static void intel_user_framebuffer_destroy(struct drm_framebuffer
*fb
)
12425 struct drm_device
*dev
= fb
->dev
;
12426 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
12428 drm_framebuffer_cleanup(fb
);
12429 mutex_lock(&dev
->struct_mutex
);
12430 WARN_ON(!intel_fb
->obj
->framebuffer_references
--);
12431 drm_gem_object_unreference(&intel_fb
->obj
->base
);
12432 mutex_unlock(&dev
->struct_mutex
);
12436 static int intel_user_framebuffer_create_handle(struct drm_framebuffer
*fb
,
12437 struct drm_file
*file
,
12438 unsigned int *handle
)
12440 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
12441 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
12443 return drm_gem_handle_create(file
, &obj
->base
, handle
);
12446 static const struct drm_framebuffer_funcs intel_fb_funcs
= {
12447 .destroy
= intel_user_framebuffer_destroy
,
12448 .create_handle
= intel_user_framebuffer_create_handle
,
12451 static int intel_framebuffer_init(struct drm_device
*dev
,
12452 struct intel_framebuffer
*intel_fb
,
12453 struct drm_mode_fb_cmd2
*mode_cmd
,
12454 struct drm_i915_gem_object
*obj
)
12456 int aligned_height
;
12460 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
12462 if (obj
->tiling_mode
== I915_TILING_Y
) {
12463 DRM_DEBUG("hardware does not support tiling Y\n");
12467 if (mode_cmd
->pitches
[0] & 63) {
12468 DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n",
12469 mode_cmd
->pitches
[0]);
12473 if (INTEL_INFO(dev
)->gen
>= 5 && !IS_VALLEYVIEW(dev
)) {
12474 pitch_limit
= 32*1024;
12475 } else if (INTEL_INFO(dev
)->gen
>= 4) {
12476 if (obj
->tiling_mode
)
12477 pitch_limit
= 16*1024;
12479 pitch_limit
= 32*1024;
12480 } else if (INTEL_INFO(dev
)->gen
>= 3) {
12481 if (obj
->tiling_mode
)
12482 pitch_limit
= 8*1024;
12484 pitch_limit
= 16*1024;
12486 /* XXX DSPC is limited to 4k tiled */
12487 pitch_limit
= 8*1024;
12489 if (mode_cmd
->pitches
[0] > pitch_limit
) {
12490 DRM_DEBUG("%s pitch (%d) must be at less than %d\n",
12491 obj
->tiling_mode
? "tiled" : "linear",
12492 mode_cmd
->pitches
[0], pitch_limit
);
12496 if (obj
->tiling_mode
!= I915_TILING_NONE
&&
12497 mode_cmd
->pitches
[0] != obj
->stride
) {
12498 DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n",
12499 mode_cmd
->pitches
[0], obj
->stride
);
12503 /* Reject formats not supported by any plane early. */
12504 switch (mode_cmd
->pixel_format
) {
12505 case DRM_FORMAT_C8
:
12506 case DRM_FORMAT_RGB565
:
12507 case DRM_FORMAT_XRGB8888
:
12508 case DRM_FORMAT_ARGB8888
:
12510 case DRM_FORMAT_XRGB1555
:
12511 case DRM_FORMAT_ARGB1555
:
12512 if (INTEL_INFO(dev
)->gen
> 3) {
12513 DRM_DEBUG("unsupported pixel format: %s\n",
12514 drm_get_format_name(mode_cmd
->pixel_format
));
12518 case DRM_FORMAT_XBGR8888
:
12519 case DRM_FORMAT_ABGR8888
:
12520 case DRM_FORMAT_XRGB2101010
:
12521 case DRM_FORMAT_ARGB2101010
:
12522 case DRM_FORMAT_XBGR2101010
:
12523 case DRM_FORMAT_ABGR2101010
:
12524 if (INTEL_INFO(dev
)->gen
< 4) {
12525 DRM_DEBUG("unsupported pixel format: %s\n",
12526 drm_get_format_name(mode_cmd
->pixel_format
));
12530 case DRM_FORMAT_YUYV
:
12531 case DRM_FORMAT_UYVY
:
12532 case DRM_FORMAT_YVYU
:
12533 case DRM_FORMAT_VYUY
:
12534 if (INTEL_INFO(dev
)->gen
< 5) {
12535 DRM_DEBUG("unsupported pixel format: %s\n",
12536 drm_get_format_name(mode_cmd
->pixel_format
));
12541 DRM_DEBUG("unsupported pixel format: %s\n",
12542 drm_get_format_name(mode_cmd
->pixel_format
));
12546 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
12547 if (mode_cmd
->offsets
[0] != 0)
12550 aligned_height
= intel_align_height(dev
, mode_cmd
->height
,
12552 /* FIXME drm helper for size checks (especially planar formats)? */
12553 if (obj
->base
.size
< aligned_height
* mode_cmd
->pitches
[0])
12556 drm_helper_mode_fill_fb_struct(&intel_fb
->base
, mode_cmd
);
12557 intel_fb
->obj
= obj
;
12558 intel_fb
->obj
->framebuffer_references
++;
12560 ret
= drm_framebuffer_init(dev
, &intel_fb
->base
, &intel_fb_funcs
);
12562 DRM_ERROR("framebuffer init failed %d\n", ret
);
12569 static struct drm_framebuffer
*
12570 intel_user_framebuffer_create(struct drm_device
*dev
,
12571 struct drm_file
*filp
,
12572 struct drm_mode_fb_cmd2
*mode_cmd
)
12574 struct drm_i915_gem_object
*obj
;
12576 obj
= to_intel_bo(drm_gem_object_lookup(dev
, filp
,
12577 mode_cmd
->handles
[0]));
12578 if (&obj
->base
== NULL
)
12579 return ERR_PTR(-ENOENT
);
12581 return intel_framebuffer_create(dev
, mode_cmd
, obj
);
12584 #ifndef CONFIG_DRM_I915_FBDEV
12585 static inline void intel_fbdev_output_poll_changed(struct drm_device
*dev
)
12590 static const struct drm_mode_config_funcs intel_mode_funcs
= {
12591 .fb_create
= intel_user_framebuffer_create
,
12592 .output_poll_changed
= intel_fbdev_output_poll_changed
,
12595 /* Set up chip specific display functions */
12596 static void intel_init_display(struct drm_device
*dev
)
12598 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12600 if (HAS_PCH_SPLIT(dev
) || IS_G4X(dev
))
12601 dev_priv
->display
.find_dpll
= g4x_find_best_dpll
;
12602 else if (IS_CHERRYVIEW(dev
))
12603 dev_priv
->display
.find_dpll
= chv_find_best_dpll
;
12604 else if (IS_VALLEYVIEW(dev
))
12605 dev_priv
->display
.find_dpll
= vlv_find_best_dpll
;
12606 else if (IS_PINEVIEW(dev
))
12607 dev_priv
->display
.find_dpll
= pnv_find_best_dpll
;
12609 dev_priv
->display
.find_dpll
= i9xx_find_best_dpll
;
12611 if (HAS_DDI(dev
)) {
12612 dev_priv
->display
.get_pipe_config
= haswell_get_pipe_config
;
12613 dev_priv
->display
.get_plane_config
= ironlake_get_plane_config
;
12614 dev_priv
->display
.crtc_mode_set
= haswell_crtc_mode_set
;
12615 dev_priv
->display
.crtc_enable
= haswell_crtc_enable
;
12616 dev_priv
->display
.crtc_disable
= haswell_crtc_disable
;
12617 dev_priv
->display
.off
= ironlake_crtc_off
;
12618 dev_priv
->display
.update_primary_plane
=
12619 ironlake_update_primary_plane
;
12620 } else if (HAS_PCH_SPLIT(dev
)) {
12621 dev_priv
->display
.get_pipe_config
= ironlake_get_pipe_config
;
12622 dev_priv
->display
.get_plane_config
= ironlake_get_plane_config
;
12623 dev_priv
->display
.crtc_mode_set
= ironlake_crtc_mode_set
;
12624 dev_priv
->display
.crtc_enable
= ironlake_crtc_enable
;
12625 dev_priv
->display
.crtc_disable
= ironlake_crtc_disable
;
12626 dev_priv
->display
.off
= ironlake_crtc_off
;
12627 dev_priv
->display
.update_primary_plane
=
12628 ironlake_update_primary_plane
;
12629 } else if (IS_VALLEYVIEW(dev
)) {
12630 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
12631 dev_priv
->display
.get_plane_config
= i9xx_get_plane_config
;
12632 dev_priv
->display
.crtc_mode_set
= i9xx_crtc_mode_set
;
12633 dev_priv
->display
.crtc_enable
= valleyview_crtc_enable
;
12634 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
12635 dev_priv
->display
.off
= i9xx_crtc_off
;
12636 dev_priv
->display
.update_primary_plane
=
12637 i9xx_update_primary_plane
;
12639 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
12640 dev_priv
->display
.get_plane_config
= i9xx_get_plane_config
;
12641 dev_priv
->display
.crtc_mode_set
= i9xx_crtc_mode_set
;
12642 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
12643 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
12644 dev_priv
->display
.off
= i9xx_crtc_off
;
12645 dev_priv
->display
.update_primary_plane
=
12646 i9xx_update_primary_plane
;
12649 /* Returns the core display clock speed */
12650 if (IS_VALLEYVIEW(dev
))
12651 dev_priv
->display
.get_display_clock_speed
=
12652 valleyview_get_display_clock_speed
;
12653 else if (IS_I945G(dev
) || (IS_G33(dev
) && !IS_PINEVIEW_M(dev
)))
12654 dev_priv
->display
.get_display_clock_speed
=
12655 i945_get_display_clock_speed
;
12656 else if (IS_I915G(dev
))
12657 dev_priv
->display
.get_display_clock_speed
=
12658 i915_get_display_clock_speed
;
12659 else if (IS_I945GM(dev
) || IS_845G(dev
))
12660 dev_priv
->display
.get_display_clock_speed
=
12661 i9xx_misc_get_display_clock_speed
;
12662 else if (IS_PINEVIEW(dev
))
12663 dev_priv
->display
.get_display_clock_speed
=
12664 pnv_get_display_clock_speed
;
12665 else if (IS_I915GM(dev
))
12666 dev_priv
->display
.get_display_clock_speed
=
12667 i915gm_get_display_clock_speed
;
12668 else if (IS_I865G(dev
))
12669 dev_priv
->display
.get_display_clock_speed
=
12670 i865_get_display_clock_speed
;
12671 else if (IS_I85X(dev
))
12672 dev_priv
->display
.get_display_clock_speed
=
12673 i855_get_display_clock_speed
;
12674 else /* 852, 830 */
12675 dev_priv
->display
.get_display_clock_speed
=
12676 i830_get_display_clock_speed
;
12679 dev_priv
->display
.write_eld
= g4x_write_eld
;
12680 } else if (IS_GEN5(dev
)) {
12681 dev_priv
->display
.fdi_link_train
= ironlake_fdi_link_train
;
12682 dev_priv
->display
.write_eld
= ironlake_write_eld
;
12683 } else if (IS_GEN6(dev
)) {
12684 dev_priv
->display
.fdi_link_train
= gen6_fdi_link_train
;
12685 dev_priv
->display
.write_eld
= ironlake_write_eld
;
12686 dev_priv
->display
.modeset_global_resources
=
12687 snb_modeset_global_resources
;
12688 } else if (IS_IVYBRIDGE(dev
)) {
12689 /* FIXME: detect B0+ stepping and use auto training */
12690 dev_priv
->display
.fdi_link_train
= ivb_manual_fdi_link_train
;
12691 dev_priv
->display
.write_eld
= ironlake_write_eld
;
12692 dev_priv
->display
.modeset_global_resources
=
12693 ivb_modeset_global_resources
;
12694 } else if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
12695 dev_priv
->display
.fdi_link_train
= hsw_fdi_link_train
;
12696 dev_priv
->display
.write_eld
= haswell_write_eld
;
12697 dev_priv
->display
.modeset_global_resources
=
12698 haswell_modeset_global_resources
;
12699 } else if (IS_VALLEYVIEW(dev
)) {
12700 dev_priv
->display
.modeset_global_resources
=
12701 valleyview_modeset_global_resources
;
12702 dev_priv
->display
.write_eld
= ironlake_write_eld
;
12705 /* Default just returns -ENODEV to indicate unsupported */
12706 dev_priv
->display
.queue_flip
= intel_default_queue_flip
;
12708 switch (INTEL_INFO(dev
)->gen
) {
12710 dev_priv
->display
.queue_flip
= intel_gen2_queue_flip
;
12714 dev_priv
->display
.queue_flip
= intel_gen3_queue_flip
;
12719 dev_priv
->display
.queue_flip
= intel_gen4_queue_flip
;
12723 dev_priv
->display
.queue_flip
= intel_gen6_queue_flip
;
12726 case 8: /* FIXME(BDW): Check that the gen8 RCS flip works. */
12727 dev_priv
->display
.queue_flip
= intel_gen7_queue_flip
;
12731 intel_panel_init_backlight_funcs(dev
);
12733 mutex_init(&dev_priv
->pps_mutex
);
12737 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
12738 * resume, or other times. This quirk makes sure that's the case for
12739 * affected systems.
12741 static void quirk_pipea_force(struct drm_device
*dev
)
12743 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12745 dev_priv
->quirks
|= QUIRK_PIPEA_FORCE
;
12746 DRM_INFO("applying pipe a force quirk\n");
12749 static void quirk_pipeb_force(struct drm_device
*dev
)
12751 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12753 dev_priv
->quirks
|= QUIRK_PIPEB_FORCE
;
12754 DRM_INFO("applying pipe b force quirk\n");
12758 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
12760 static void quirk_ssc_force_disable(struct drm_device
*dev
)
12762 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12763 dev_priv
->quirks
|= QUIRK_LVDS_SSC_DISABLE
;
12764 DRM_INFO("applying lvds SSC disable quirk\n");
12768 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
12771 static void quirk_invert_brightness(struct drm_device
*dev
)
12773 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12774 dev_priv
->quirks
|= QUIRK_INVERT_BRIGHTNESS
;
12775 DRM_INFO("applying inverted panel brightness quirk\n");
12778 /* Some VBT's incorrectly indicate no backlight is present */
12779 static void quirk_backlight_present(struct drm_device
*dev
)
12781 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12782 dev_priv
->quirks
|= QUIRK_BACKLIGHT_PRESENT
;
12783 DRM_INFO("applying backlight present quirk\n");
12786 struct intel_quirk
{
12788 int subsystem_vendor
;
12789 int subsystem_device
;
12790 void (*hook
)(struct drm_device
*dev
);
12793 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
12794 struct intel_dmi_quirk
{
12795 void (*hook
)(struct drm_device
*dev
);
12796 const struct dmi_system_id (*dmi_id_list
)[];
12799 static int intel_dmi_reverse_brightness(const struct dmi_system_id
*id
)
12801 DRM_INFO("Backlight polarity reversed on %s\n", id
->ident
);
12805 static const struct intel_dmi_quirk intel_dmi_quirks
[] = {
12807 .dmi_id_list
= &(const struct dmi_system_id
[]) {
12809 .callback
= intel_dmi_reverse_brightness
,
12810 .ident
= "NCR Corporation",
12811 .matches
= {DMI_MATCH(DMI_SYS_VENDOR
, "NCR Corporation"),
12812 DMI_MATCH(DMI_PRODUCT_NAME
, ""),
12815 { } /* terminating entry */
12817 .hook
= quirk_invert_brightness
,
12821 static struct intel_quirk intel_quirks
[] = {
12822 /* HP Mini needs pipe A force quirk (LP: #322104) */
12823 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force
},
12825 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
12826 { 0x2592, 0x1179, 0x0001, quirk_pipea_force
},
12828 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
12829 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force
},
12831 /* 830 needs to leave pipe A & dpll A up */
12832 { 0x3577, PCI_ANY_ID
, PCI_ANY_ID
, quirk_pipea_force
},
12834 /* 830 needs to leave pipe B & dpll B up */
12835 { 0x3577, PCI_ANY_ID
, PCI_ANY_ID
, quirk_pipeb_force
},
12837 /* Lenovo U160 cannot use SSC on LVDS */
12838 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable
},
12840 /* Sony Vaio Y cannot use SSC on LVDS */
12841 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable
},
12843 /* Acer Aspire 5734Z must invert backlight brightness */
12844 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness
},
12846 /* Acer/eMachines G725 */
12847 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness
},
12849 /* Acer/eMachines e725 */
12850 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness
},
12852 /* Acer/Packard Bell NCL20 */
12853 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness
},
12855 /* Acer Aspire 4736Z */
12856 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness
},
12858 /* Acer Aspire 5336 */
12859 { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness
},
12861 /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */
12862 { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present
},
12864 /* Acer C720 Chromebook (Core i3 4005U) */
12865 { 0x0a16, 0x1025, 0x0a11, quirk_backlight_present
},
12867 /* Toshiba CB35 Chromebook (Celeron 2955U) */
12868 { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present
},
12870 /* HP Chromebook 14 (Celeron 2955U) */
12871 { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present
},
12874 static void intel_init_quirks(struct drm_device
*dev
)
12876 struct pci_dev
*d
= dev
->pdev
;
12879 for (i
= 0; i
< ARRAY_SIZE(intel_quirks
); i
++) {
12880 struct intel_quirk
*q
= &intel_quirks
[i
];
12882 if (d
->device
== q
->device
&&
12883 (d
->subsystem_vendor
== q
->subsystem_vendor
||
12884 q
->subsystem_vendor
== PCI_ANY_ID
) &&
12885 (d
->subsystem_device
== q
->subsystem_device
||
12886 q
->subsystem_device
== PCI_ANY_ID
))
12889 for (i
= 0; i
< ARRAY_SIZE(intel_dmi_quirks
); i
++) {
12890 if (dmi_check_system(*intel_dmi_quirks
[i
].dmi_id_list
) != 0)
12891 intel_dmi_quirks
[i
].hook(dev
);
12895 /* Disable the VGA plane that we never use */
12896 static void i915_disable_vga(struct drm_device
*dev
)
12898 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12900 u32 vga_reg
= i915_vgacntrl_reg(dev
);
12902 /* WaEnableVGAAccessThroughIOPort:ctg,elk,ilk,snb,ivb,vlv,hsw */
12903 vga_get_uninterruptible(dev
->pdev
, VGA_RSRC_LEGACY_IO
);
12904 outb(SR01
, VGA_SR_INDEX
);
12905 sr1
= inb(VGA_SR_DATA
);
12906 outb(sr1
| 1<<5, VGA_SR_DATA
);
12907 vga_put(dev
->pdev
, VGA_RSRC_LEGACY_IO
);
12911 * Fujitsu-Siemens Lifebook S6010 (830) has problems resuming
12912 * from S3 without preserving (some of?) the other bits.
12914 I915_WRITE(vga_reg
, dev_priv
->bios_vgacntr
| VGA_DISP_DISABLE
);
12915 POSTING_READ(vga_reg
);
12918 void intel_modeset_init_hw(struct drm_device
*dev
)
12920 intel_prepare_ddi(dev
);
12922 if (IS_VALLEYVIEW(dev
))
12923 vlv_update_cdclk(dev
);
12925 intel_init_clock_gating(dev
);
12927 intel_enable_gt_powersave(dev
);
12930 void intel_modeset_suspend_hw(struct drm_device
*dev
)
12932 intel_suspend_hw(dev
);
12935 void intel_modeset_init(struct drm_device
*dev
)
12937 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12940 struct intel_crtc
*crtc
;
12942 drm_mode_config_init(dev
);
12944 dev
->mode_config
.min_width
= 0;
12945 dev
->mode_config
.min_height
= 0;
12947 dev
->mode_config
.preferred_depth
= 24;
12948 dev
->mode_config
.prefer_shadow
= 1;
12950 dev
->mode_config
.funcs
= &intel_mode_funcs
;
12952 intel_init_quirks(dev
);
12954 intel_init_pm(dev
);
12956 if (INTEL_INFO(dev
)->num_pipes
== 0)
12959 intel_init_display(dev
);
12961 if (IS_GEN2(dev
)) {
12962 dev
->mode_config
.max_width
= 2048;
12963 dev
->mode_config
.max_height
= 2048;
12964 } else if (IS_GEN3(dev
)) {
12965 dev
->mode_config
.max_width
= 4096;
12966 dev
->mode_config
.max_height
= 4096;
12968 dev
->mode_config
.max_width
= 8192;
12969 dev
->mode_config
.max_height
= 8192;
12972 if (IS_845G(dev
) || IS_I865G(dev
)) {
12973 dev
->mode_config
.cursor_width
= IS_845G(dev
) ? 64 : 512;
12974 dev
->mode_config
.cursor_height
= 1023;
12975 } else if (IS_GEN2(dev
)) {
12976 dev
->mode_config
.cursor_width
= GEN2_CURSOR_WIDTH
;
12977 dev
->mode_config
.cursor_height
= GEN2_CURSOR_HEIGHT
;
12979 dev
->mode_config
.cursor_width
= MAX_CURSOR_WIDTH
;
12980 dev
->mode_config
.cursor_height
= MAX_CURSOR_HEIGHT
;
12983 dev
->mode_config
.fb_base
= dev_priv
->gtt
.mappable_base
;
12985 DRM_DEBUG_KMS("%d display pipe%s available.\n",
12986 INTEL_INFO(dev
)->num_pipes
,
12987 INTEL_INFO(dev
)->num_pipes
> 1 ? "s" : "");
12989 for_each_pipe(dev_priv
, pipe
) {
12990 intel_crtc_init(dev
, pipe
);
12991 for_each_sprite(pipe
, sprite
) {
12992 ret
= intel_plane_init(dev
, pipe
, sprite
);
12994 DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n",
12995 pipe_name(pipe
), sprite_name(pipe
, sprite
), ret
);
12999 intel_init_dpio(dev
);
13001 intel_shared_dpll_init(dev
);
13003 /* save the BIOS value before clobbering it */
13004 dev_priv
->bios_vgacntr
= I915_READ(i915_vgacntrl_reg(dev
));
13005 /* Just disable it once at startup */
13006 i915_disable_vga(dev
);
13007 intel_setup_outputs(dev
);
13009 /* Just in case the BIOS is doing something questionable. */
13010 intel_disable_fbc(dev
);
13012 drm_modeset_lock_all(dev
);
13013 intel_modeset_setup_hw_state(dev
, false);
13014 drm_modeset_unlock_all(dev
);
13016 for_each_intel_crtc(dev
, crtc
) {
13021 * Note that reserving the BIOS fb up front prevents us
13022 * from stuffing other stolen allocations like the ring
13023 * on top. This prevents some ugliness at boot time, and
13024 * can even allow for smooth boot transitions if the BIOS
13025 * fb is large enough for the active pipe configuration.
13027 if (dev_priv
->display
.get_plane_config
) {
13028 dev_priv
->display
.get_plane_config(crtc
,
13029 &crtc
->plane_config
);
13031 * If the fb is shared between multiple heads, we'll
13032 * just get the first one.
13034 intel_find_plane_obj(crtc
, &crtc
->plane_config
);
13039 static void intel_enable_pipe_a(struct drm_device
*dev
)
13041 struct intel_connector
*connector
;
13042 struct drm_connector
*crt
= NULL
;
13043 struct intel_load_detect_pipe load_detect_temp
;
13044 struct drm_modeset_acquire_ctx
*ctx
= dev
->mode_config
.acquire_ctx
;
13046 /* We can't just switch on the pipe A, we need to set things up with a
13047 * proper mode and output configuration. As a gross hack, enable pipe A
13048 * by enabling the load detect pipe once. */
13049 list_for_each_entry(connector
,
13050 &dev
->mode_config
.connector_list
,
13052 if (connector
->encoder
->type
== INTEL_OUTPUT_ANALOG
) {
13053 crt
= &connector
->base
;
13061 if (intel_get_load_detect_pipe(crt
, NULL
, &load_detect_temp
, ctx
))
13062 intel_release_load_detect_pipe(crt
, &load_detect_temp
);
13066 intel_check_plane_mapping(struct intel_crtc
*crtc
)
13068 struct drm_device
*dev
= crtc
->base
.dev
;
13069 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13072 if (INTEL_INFO(dev
)->num_pipes
== 1)
13075 reg
= DSPCNTR(!crtc
->plane
);
13076 val
= I915_READ(reg
);
13078 if ((val
& DISPLAY_PLANE_ENABLE
) &&
13079 (!!(val
& DISPPLANE_SEL_PIPE_MASK
) == crtc
->pipe
))
13085 static void intel_sanitize_crtc(struct intel_crtc
*crtc
)
13087 struct drm_device
*dev
= crtc
->base
.dev
;
13088 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13091 /* Clear any frame start delays used for debugging left by the BIOS */
13092 reg
= PIPECONF(crtc
->config
.cpu_transcoder
);
13093 I915_WRITE(reg
, I915_READ(reg
) & ~PIPECONF_FRAME_START_DELAY_MASK
);
13095 /* restore vblank interrupts to correct state */
13096 if (crtc
->active
) {
13097 update_scanline_offset(crtc
);
13098 drm_vblank_on(dev
, crtc
->pipe
);
13100 drm_vblank_off(dev
, crtc
->pipe
);
13102 /* We need to sanitize the plane -> pipe mapping first because this will
13103 * disable the crtc (and hence change the state) if it is wrong. Note
13104 * that gen4+ has a fixed plane -> pipe mapping. */
13105 if (INTEL_INFO(dev
)->gen
< 4 && !intel_check_plane_mapping(crtc
)) {
13106 struct intel_connector
*connector
;
13109 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
13110 crtc
->base
.base
.id
);
13112 /* Pipe has the wrong plane attached and the plane is active.
13113 * Temporarily change the plane mapping and disable everything
13115 plane
= crtc
->plane
;
13116 crtc
->plane
= !plane
;
13117 crtc
->primary_enabled
= true;
13118 dev_priv
->display
.crtc_disable(&crtc
->base
);
13119 crtc
->plane
= plane
;
13121 /* ... and break all links. */
13122 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
13124 if (connector
->encoder
->base
.crtc
!= &crtc
->base
)
13127 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
13128 connector
->base
.encoder
= NULL
;
13130 /* multiple connectors may have the same encoder:
13131 * handle them and break crtc link separately */
13132 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
13134 if (connector
->encoder
->base
.crtc
== &crtc
->base
) {
13135 connector
->encoder
->base
.crtc
= NULL
;
13136 connector
->encoder
->connectors_active
= false;
13139 WARN_ON(crtc
->active
);
13140 crtc
->base
.enabled
= false;
13143 if (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
&&
13144 crtc
->pipe
== PIPE_A
&& !crtc
->active
) {
13145 /* BIOS forgot to enable pipe A, this mostly happens after
13146 * resume. Force-enable the pipe to fix this, the update_dpms
13147 * call below we restore the pipe to the right state, but leave
13148 * the required bits on. */
13149 intel_enable_pipe_a(dev
);
13152 /* Adjust the state of the output pipe according to whether we
13153 * have active connectors/encoders. */
13154 intel_crtc_update_dpms(&crtc
->base
);
13156 if (crtc
->active
!= crtc
->base
.enabled
) {
13157 struct intel_encoder
*encoder
;
13159 /* This can happen either due to bugs in the get_hw_state
13160 * functions or because the pipe is force-enabled due to the
13162 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
13163 crtc
->base
.base
.id
,
13164 crtc
->base
.enabled
? "enabled" : "disabled",
13165 crtc
->active
? "enabled" : "disabled");
13167 crtc
->base
.enabled
= crtc
->active
;
13169 /* Because we only establish the connector -> encoder ->
13170 * crtc links if something is active, this means the
13171 * crtc is now deactivated. Break the links. connector
13172 * -> encoder links are only establish when things are
13173 * actually up, hence no need to break them. */
13174 WARN_ON(crtc
->active
);
13176 for_each_encoder_on_crtc(dev
, &crtc
->base
, encoder
) {
13177 WARN_ON(encoder
->connectors_active
);
13178 encoder
->base
.crtc
= NULL
;
13182 if (crtc
->active
|| HAS_GMCH_DISPLAY(dev
)) {
13184 * We start out with underrun reporting disabled to avoid races.
13185 * For correct bookkeeping mark this on active crtcs.
13187 * Also on gmch platforms we dont have any hardware bits to
13188 * disable the underrun reporting. Which means we need to start
13189 * out with underrun reporting disabled also on inactive pipes,
13190 * since otherwise we'll complain about the garbage we read when
13191 * e.g. coming up after runtime pm.
13193 * No protection against concurrent access is required - at
13194 * worst a fifo underrun happens which also sets this to false.
13196 crtc
->cpu_fifo_underrun_disabled
= true;
13197 crtc
->pch_fifo_underrun_disabled
= true;
13201 static void intel_sanitize_encoder(struct intel_encoder
*encoder
)
13203 struct intel_connector
*connector
;
13204 struct drm_device
*dev
= encoder
->base
.dev
;
13206 /* We need to check both for a crtc link (meaning that the
13207 * encoder is active and trying to read from a pipe) and the
13208 * pipe itself being active. */
13209 bool has_active_crtc
= encoder
->base
.crtc
&&
13210 to_intel_crtc(encoder
->base
.crtc
)->active
;
13212 if (encoder
->connectors_active
&& !has_active_crtc
) {
13213 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
13214 encoder
->base
.base
.id
,
13215 encoder
->base
.name
);
13217 /* Connector is active, but has no active pipe. This is
13218 * fallout from our resume register restoring. Disable
13219 * the encoder manually again. */
13220 if (encoder
->base
.crtc
) {
13221 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
13222 encoder
->base
.base
.id
,
13223 encoder
->base
.name
);
13224 encoder
->disable(encoder
);
13225 if (encoder
->post_disable
)
13226 encoder
->post_disable(encoder
);
13228 encoder
->base
.crtc
= NULL
;
13229 encoder
->connectors_active
= false;
13231 /* Inconsistent output/port/pipe state happens presumably due to
13232 * a bug in one of the get_hw_state functions. Or someplace else
13233 * in our code, like the register restore mess on resume. Clamp
13234 * things to off as a safer default. */
13235 list_for_each_entry(connector
,
13236 &dev
->mode_config
.connector_list
,
13238 if (connector
->encoder
!= encoder
)
13240 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
13241 connector
->base
.encoder
= NULL
;
13244 /* Enabled encoders without active connectors will be fixed in
13245 * the crtc fixup. */
13248 void i915_redisable_vga_power_on(struct drm_device
*dev
)
13250 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13251 u32 vga_reg
= i915_vgacntrl_reg(dev
);
13253 if (!(I915_READ(vga_reg
) & VGA_DISP_DISABLE
)) {
13254 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
13255 i915_disable_vga(dev
);
13259 void i915_redisable_vga(struct drm_device
*dev
)
13261 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13263 /* This function can be called both from intel_modeset_setup_hw_state or
13264 * at a very early point in our resume sequence, where the power well
13265 * structures are not yet restored. Since this function is at a very
13266 * paranoid "someone might have enabled VGA while we were not looking"
13267 * level, just check if the power well is enabled instead of trying to
13268 * follow the "don't touch the power well if we don't need it" policy
13269 * the rest of the driver uses. */
13270 if (!intel_display_power_enabled(dev_priv
, POWER_DOMAIN_VGA
))
13273 i915_redisable_vga_power_on(dev
);
13276 static bool primary_get_hw_state(struct intel_crtc
*crtc
)
13278 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
13283 return I915_READ(DSPCNTR(crtc
->plane
)) & DISPLAY_PLANE_ENABLE
;
13286 static void intel_modeset_readout_hw_state(struct drm_device
*dev
)
13288 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13290 struct intel_crtc
*crtc
;
13291 struct intel_encoder
*encoder
;
13292 struct intel_connector
*connector
;
13295 for_each_intel_crtc(dev
, crtc
) {
13296 memset(&crtc
->config
, 0, sizeof(crtc
->config
));
13298 crtc
->config
.quirks
|= PIPE_CONFIG_QUIRK_INHERITED_MODE
;
13300 crtc
->active
= dev_priv
->display
.get_pipe_config(crtc
,
13303 crtc
->base
.enabled
= crtc
->active
;
13304 crtc
->primary_enabled
= primary_get_hw_state(crtc
);
13306 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
13307 crtc
->base
.base
.id
,
13308 crtc
->active
? "enabled" : "disabled");
13311 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
13312 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
13314 pll
->on
= pll
->get_hw_state(dev_priv
, pll
, &pll
->hw_state
);
13316 for_each_intel_crtc(dev
, crtc
) {
13317 if (crtc
->active
&& intel_crtc_to_shared_dpll(crtc
) == pll
)
13320 pll
->refcount
= pll
->active
;
13322 DRM_DEBUG_KMS("%s hw state readout: refcount %i, on %i\n",
13323 pll
->name
, pll
->refcount
, pll
->on
);
13326 intel_display_power_get(dev_priv
, POWER_DOMAIN_PLLS
);
13329 for_each_intel_encoder(dev
, encoder
) {
13332 if (encoder
->get_hw_state(encoder
, &pipe
)) {
13333 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
13334 encoder
->base
.crtc
= &crtc
->base
;
13335 encoder
->get_config(encoder
, &crtc
->config
);
13337 encoder
->base
.crtc
= NULL
;
13340 encoder
->connectors_active
= false;
13341 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n",
13342 encoder
->base
.base
.id
,
13343 encoder
->base
.name
,
13344 encoder
->base
.crtc
? "enabled" : "disabled",
13348 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
13350 if (connector
->get_hw_state(connector
)) {
13351 connector
->base
.dpms
= DRM_MODE_DPMS_ON
;
13352 connector
->encoder
->connectors_active
= true;
13353 connector
->base
.encoder
= &connector
->encoder
->base
;
13355 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
13356 connector
->base
.encoder
= NULL
;
13358 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
13359 connector
->base
.base
.id
,
13360 connector
->base
.name
,
13361 connector
->base
.encoder
? "enabled" : "disabled");
13365 /* Scan out the current hw modeset state, sanitizes it and maps it into the drm
13366 * and i915 state tracking structures. */
13367 void intel_modeset_setup_hw_state(struct drm_device
*dev
,
13368 bool force_restore
)
13370 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13372 struct intel_crtc
*crtc
;
13373 struct intel_encoder
*encoder
;
13376 intel_modeset_readout_hw_state(dev
);
13379 * Now that we have the config, copy it to each CRTC struct
13380 * Note that this could go away if we move to using crtc_config
13381 * checking everywhere.
13383 for_each_intel_crtc(dev
, crtc
) {
13384 if (crtc
->active
&& i915
.fastboot
) {
13385 intel_mode_from_pipe_config(&crtc
->base
.mode
, &crtc
->config
);
13386 DRM_DEBUG_KMS("[CRTC:%d] found active mode: ",
13387 crtc
->base
.base
.id
);
13388 drm_mode_debug_printmodeline(&crtc
->base
.mode
);
13392 /* HW state is read out, now we need to sanitize this mess. */
13393 for_each_intel_encoder(dev
, encoder
) {
13394 intel_sanitize_encoder(encoder
);
13397 for_each_pipe(dev_priv
, pipe
) {
13398 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
13399 intel_sanitize_crtc(crtc
);
13400 intel_dump_pipe_config(crtc
, &crtc
->config
, "[setup_hw_state]");
13403 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
13404 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
13406 if (!pll
->on
|| pll
->active
)
13409 DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll
->name
);
13411 pll
->disable(dev_priv
, pll
);
13415 if (HAS_PCH_SPLIT(dev
))
13416 ilk_wm_get_hw_state(dev
);
13418 if (force_restore
) {
13419 i915_redisable_vga(dev
);
13422 * We need to use raw interfaces for restoring state to avoid
13423 * checking (bogus) intermediate states.
13425 for_each_pipe(dev_priv
, pipe
) {
13426 struct drm_crtc
*crtc
=
13427 dev_priv
->pipe_to_crtc_mapping
[pipe
];
13429 __intel_set_mode(crtc
, &crtc
->mode
, crtc
->x
, crtc
->y
,
13430 crtc
->primary
->fb
);
13433 intel_modeset_update_staged_output_state(dev
);
13436 intel_modeset_check_state(dev
);
13439 void intel_modeset_gem_init(struct drm_device
*dev
)
13441 struct drm_crtc
*c
;
13442 struct drm_i915_gem_object
*obj
;
13444 mutex_lock(&dev
->struct_mutex
);
13445 intel_init_gt_powersave(dev
);
13446 mutex_unlock(&dev
->struct_mutex
);
13448 intel_modeset_init_hw(dev
);
13450 intel_setup_overlay(dev
);
13453 * Make sure any fbs we allocated at startup are properly
13454 * pinned & fenced. When we do the allocation it's too early
13457 mutex_lock(&dev
->struct_mutex
);
13458 for_each_crtc(dev
, c
) {
13459 obj
= intel_fb_obj(c
->primary
->fb
);
13463 if (intel_pin_and_fence_fb_obj(dev
, obj
, NULL
)) {
13464 DRM_ERROR("failed to pin boot fb on pipe %d\n",
13465 to_intel_crtc(c
)->pipe
);
13466 drm_framebuffer_unreference(c
->primary
->fb
);
13467 c
->primary
->fb
= NULL
;
13470 mutex_unlock(&dev
->struct_mutex
);
13473 void intel_connector_unregister(struct intel_connector
*intel_connector
)
13475 struct drm_connector
*connector
= &intel_connector
->base
;
13477 intel_panel_destroy_backlight(connector
);
13478 drm_connector_unregister(connector
);
13481 void intel_modeset_cleanup(struct drm_device
*dev
)
13483 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13484 struct drm_connector
*connector
;
13487 * Interrupts and polling as the first thing to avoid creating havoc.
13488 * Too much stuff here (turning of rps, connectors, ...) would
13489 * experience fancy races otherwise.
13491 drm_irq_uninstall(dev
);
13492 intel_hpd_cancel_work(dev_priv
);
13493 dev_priv
->pm
._irqs_disabled
= true;
13496 * Due to the hpd irq storm handling the hotplug work can re-arm the
13497 * poll handlers. Hence disable polling after hpd handling is shut down.
13499 drm_kms_helper_poll_fini(dev
);
13501 mutex_lock(&dev
->struct_mutex
);
13503 intel_unregister_dsm_handler();
13505 intel_disable_fbc(dev
);
13507 intel_disable_gt_powersave(dev
);
13509 ironlake_teardown_rc6(dev
);
13511 mutex_unlock(&dev
->struct_mutex
);
13513 /* flush any delayed tasks or pending work */
13514 flush_scheduled_work();
13516 /* destroy the backlight and sysfs files before encoders/connectors */
13517 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
13518 struct intel_connector
*intel_connector
;
13520 intel_connector
= to_intel_connector(connector
);
13521 intel_connector
->unregister(intel_connector
);
13524 drm_mode_config_cleanup(dev
);
13526 intel_cleanup_overlay(dev
);
13528 mutex_lock(&dev
->struct_mutex
);
13529 intel_cleanup_gt_powersave(dev
);
13530 mutex_unlock(&dev
->struct_mutex
);
13534 * Return which encoder is currently attached for connector.
13536 struct drm_encoder
*intel_best_encoder(struct drm_connector
*connector
)
13538 return &intel_attached_encoder(connector
)->base
;
13541 void intel_connector_attach_encoder(struct intel_connector
*connector
,
13542 struct intel_encoder
*encoder
)
13544 connector
->encoder
= encoder
;
13545 drm_mode_connector_attach_encoder(&connector
->base
,
13550 * set vga decode state - true == enable VGA decode
13552 int intel_modeset_vga_set_state(struct drm_device
*dev
, bool state
)
13554 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13555 unsigned reg
= INTEL_INFO(dev
)->gen
>= 6 ? SNB_GMCH_CTRL
: INTEL_GMCH_CTRL
;
13558 if (pci_read_config_word(dev_priv
->bridge_dev
, reg
, &gmch_ctrl
)) {
13559 DRM_ERROR("failed to read control word\n");
13563 if (!!(gmch_ctrl
& INTEL_GMCH_VGA_DISABLE
) == !state
)
13567 gmch_ctrl
&= ~INTEL_GMCH_VGA_DISABLE
;
13569 gmch_ctrl
|= INTEL_GMCH_VGA_DISABLE
;
13571 if (pci_write_config_word(dev_priv
->bridge_dev
, reg
, gmch_ctrl
)) {
13572 DRM_ERROR("failed to write control word\n");
13579 struct intel_display_error_state
{
13581 u32 power_well_driver
;
13583 int num_transcoders
;
13585 struct intel_cursor_error_state
{
13590 } cursor
[I915_MAX_PIPES
];
13592 struct intel_pipe_error_state
{
13593 bool power_domain_on
;
13596 } pipe
[I915_MAX_PIPES
];
13598 struct intel_plane_error_state
{
13606 } plane
[I915_MAX_PIPES
];
13608 struct intel_transcoder_error_state
{
13609 bool power_domain_on
;
13610 enum transcoder cpu_transcoder
;
13623 struct intel_display_error_state
*
13624 intel_display_capture_error_state(struct drm_device
*dev
)
13626 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13627 struct intel_display_error_state
*error
;
13628 int transcoders
[] = {
13636 if (INTEL_INFO(dev
)->num_pipes
== 0)
13639 error
= kzalloc(sizeof(*error
), GFP_ATOMIC
);
13643 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
13644 error
->power_well_driver
= I915_READ(HSW_PWR_WELL_DRIVER
);
13646 for_each_pipe(dev_priv
, i
) {
13647 error
->pipe
[i
].power_domain_on
=
13648 intel_display_power_enabled_unlocked(dev_priv
,
13649 POWER_DOMAIN_PIPE(i
));
13650 if (!error
->pipe
[i
].power_domain_on
)
13653 error
->cursor
[i
].control
= I915_READ(CURCNTR(i
));
13654 error
->cursor
[i
].position
= I915_READ(CURPOS(i
));
13655 error
->cursor
[i
].base
= I915_READ(CURBASE(i
));
13657 error
->plane
[i
].control
= I915_READ(DSPCNTR(i
));
13658 error
->plane
[i
].stride
= I915_READ(DSPSTRIDE(i
));
13659 if (INTEL_INFO(dev
)->gen
<= 3) {
13660 error
->plane
[i
].size
= I915_READ(DSPSIZE(i
));
13661 error
->plane
[i
].pos
= I915_READ(DSPPOS(i
));
13663 if (INTEL_INFO(dev
)->gen
<= 7 && !IS_HASWELL(dev
))
13664 error
->plane
[i
].addr
= I915_READ(DSPADDR(i
));
13665 if (INTEL_INFO(dev
)->gen
>= 4) {
13666 error
->plane
[i
].surface
= I915_READ(DSPSURF(i
));
13667 error
->plane
[i
].tile_offset
= I915_READ(DSPTILEOFF(i
));
13670 error
->pipe
[i
].source
= I915_READ(PIPESRC(i
));
13672 if (HAS_GMCH_DISPLAY(dev
))
13673 error
->pipe
[i
].stat
= I915_READ(PIPESTAT(i
));
13676 error
->num_transcoders
= INTEL_INFO(dev
)->num_pipes
;
13677 if (HAS_DDI(dev_priv
->dev
))
13678 error
->num_transcoders
++; /* Account for eDP. */
13680 for (i
= 0; i
< error
->num_transcoders
; i
++) {
13681 enum transcoder cpu_transcoder
= transcoders
[i
];
13683 error
->transcoder
[i
].power_domain_on
=
13684 intel_display_power_enabled_unlocked(dev_priv
,
13685 POWER_DOMAIN_TRANSCODER(cpu_transcoder
));
13686 if (!error
->transcoder
[i
].power_domain_on
)
13689 error
->transcoder
[i
].cpu_transcoder
= cpu_transcoder
;
13691 error
->transcoder
[i
].conf
= I915_READ(PIPECONF(cpu_transcoder
));
13692 error
->transcoder
[i
].htotal
= I915_READ(HTOTAL(cpu_transcoder
));
13693 error
->transcoder
[i
].hblank
= I915_READ(HBLANK(cpu_transcoder
));
13694 error
->transcoder
[i
].hsync
= I915_READ(HSYNC(cpu_transcoder
));
13695 error
->transcoder
[i
].vtotal
= I915_READ(VTOTAL(cpu_transcoder
));
13696 error
->transcoder
[i
].vblank
= I915_READ(VBLANK(cpu_transcoder
));
13697 error
->transcoder
[i
].vsync
= I915_READ(VSYNC(cpu_transcoder
));
13703 #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
13706 intel_display_print_error_state(struct drm_i915_error_state_buf
*m
,
13707 struct drm_device
*dev
,
13708 struct intel_display_error_state
*error
)
13710 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13716 err_printf(m
, "Num Pipes: %d\n", INTEL_INFO(dev
)->num_pipes
);
13717 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
13718 err_printf(m
, "PWR_WELL_CTL2: %08x\n",
13719 error
->power_well_driver
);
13720 for_each_pipe(dev_priv
, i
) {
13721 err_printf(m
, "Pipe [%d]:\n", i
);
13722 err_printf(m
, " Power: %s\n",
13723 error
->pipe
[i
].power_domain_on
? "on" : "off");
13724 err_printf(m
, " SRC: %08x\n", error
->pipe
[i
].source
);
13725 err_printf(m
, " STAT: %08x\n", error
->pipe
[i
].stat
);
13727 err_printf(m
, "Plane [%d]:\n", i
);
13728 err_printf(m
, " CNTR: %08x\n", error
->plane
[i
].control
);
13729 err_printf(m
, " STRIDE: %08x\n", error
->plane
[i
].stride
);
13730 if (INTEL_INFO(dev
)->gen
<= 3) {
13731 err_printf(m
, " SIZE: %08x\n", error
->plane
[i
].size
);
13732 err_printf(m
, " POS: %08x\n", error
->plane
[i
].pos
);
13734 if (INTEL_INFO(dev
)->gen
<= 7 && !IS_HASWELL(dev
))
13735 err_printf(m
, " ADDR: %08x\n", error
->plane
[i
].addr
);
13736 if (INTEL_INFO(dev
)->gen
>= 4) {
13737 err_printf(m
, " SURF: %08x\n", error
->plane
[i
].surface
);
13738 err_printf(m
, " TILEOFF: %08x\n", error
->plane
[i
].tile_offset
);
13741 err_printf(m
, "Cursor [%d]:\n", i
);
13742 err_printf(m
, " CNTR: %08x\n", error
->cursor
[i
].control
);
13743 err_printf(m
, " POS: %08x\n", error
->cursor
[i
].position
);
13744 err_printf(m
, " BASE: %08x\n", error
->cursor
[i
].base
);
13747 for (i
= 0; i
< error
->num_transcoders
; i
++) {
13748 err_printf(m
, "CPU transcoder: %c\n",
13749 transcoder_name(error
->transcoder
[i
].cpu_transcoder
));
13750 err_printf(m
, " Power: %s\n",
13751 error
->transcoder
[i
].power_domain_on
? "on" : "off");
13752 err_printf(m
, " CONF: %08x\n", error
->transcoder
[i
].conf
);
13753 err_printf(m
, " HTOTAL: %08x\n", error
->transcoder
[i
].htotal
);
13754 err_printf(m
, " HBLANK: %08x\n", error
->transcoder
[i
].hblank
);
13755 err_printf(m
, " HSYNC: %08x\n", error
->transcoder
[i
].hsync
);
13756 err_printf(m
, " VTOTAL: %08x\n", error
->transcoder
[i
].vtotal
);
13757 err_printf(m
, " VBLANK: %08x\n", error
->transcoder
[i
].vblank
);
13758 err_printf(m
, " VSYNC: %08x\n", error
->transcoder
[i
].vsync
);
13762 void intel_modeset_preclose(struct drm_device
*dev
, struct drm_file
*file
)
13764 struct intel_crtc
*crtc
;
13766 for_each_intel_crtc(dev
, crtc
) {
13767 struct intel_unpin_work
*work
;
13769 spin_lock_irq(&dev
->event_lock
);
13771 work
= crtc
->unpin_work
;
13773 if (work
&& work
->event
&&
13774 work
->event
->base
.file_priv
== file
) {
13775 kfree(work
->event
);
13776 work
->event
= NULL
;
13779 spin_unlock_irq(&dev
->event_lock
);