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
);
104 static struct intel_encoder
*intel_find_encoder(struct intel_connector
*connector
, int pipe
)
106 if (!connector
->mst_port
)
107 return connector
->encoder
;
109 return &connector
->mst_port
->mst_encoders
[pipe
]->base
;
118 int p2_slow
, p2_fast
;
121 typedef struct intel_limit intel_limit_t
;
123 intel_range_t dot
, vco
, n
, m
, m1
, m2
, p
, p1
;
128 intel_pch_rawclk(struct drm_device
*dev
)
130 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
132 WARN_ON(!HAS_PCH_SPLIT(dev
));
134 return I915_READ(PCH_RAWCLK_FREQ
) & RAWCLK_FREQ_MASK
;
137 static inline u32
/* units of 100MHz */
138 intel_fdi_link_freq(struct drm_device
*dev
)
141 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
142 return (I915_READ(FDI_PLL_BIOS_0
) & FDI_PLL_FB_CLOCK_MASK
) + 2;
147 static const intel_limit_t intel_limits_i8xx_dac
= {
148 .dot
= { .min
= 25000, .max
= 350000 },
149 .vco
= { .min
= 908000, .max
= 1512000 },
150 .n
= { .min
= 2, .max
= 16 },
151 .m
= { .min
= 96, .max
= 140 },
152 .m1
= { .min
= 18, .max
= 26 },
153 .m2
= { .min
= 6, .max
= 16 },
154 .p
= { .min
= 4, .max
= 128 },
155 .p1
= { .min
= 2, .max
= 33 },
156 .p2
= { .dot_limit
= 165000,
157 .p2_slow
= 4, .p2_fast
= 2 },
160 static const intel_limit_t intel_limits_i8xx_dvo
= {
161 .dot
= { .min
= 25000, .max
= 350000 },
162 .vco
= { .min
= 908000, .max
= 1512000 },
163 .n
= { .min
= 2, .max
= 16 },
164 .m
= { .min
= 96, .max
= 140 },
165 .m1
= { .min
= 18, .max
= 26 },
166 .m2
= { .min
= 6, .max
= 16 },
167 .p
= { .min
= 4, .max
= 128 },
168 .p1
= { .min
= 2, .max
= 33 },
169 .p2
= { .dot_limit
= 165000,
170 .p2_slow
= 4, .p2_fast
= 4 },
173 static const intel_limit_t intel_limits_i8xx_lvds
= {
174 .dot
= { .min
= 25000, .max
= 350000 },
175 .vco
= { .min
= 908000, .max
= 1512000 },
176 .n
= { .min
= 2, .max
= 16 },
177 .m
= { .min
= 96, .max
= 140 },
178 .m1
= { .min
= 18, .max
= 26 },
179 .m2
= { .min
= 6, .max
= 16 },
180 .p
= { .min
= 4, .max
= 128 },
181 .p1
= { .min
= 1, .max
= 6 },
182 .p2
= { .dot_limit
= 165000,
183 .p2_slow
= 14, .p2_fast
= 7 },
186 static const intel_limit_t intel_limits_i9xx_sdvo
= {
187 .dot
= { .min
= 20000, .max
= 400000 },
188 .vco
= { .min
= 1400000, .max
= 2800000 },
189 .n
= { .min
= 1, .max
= 6 },
190 .m
= { .min
= 70, .max
= 120 },
191 .m1
= { .min
= 8, .max
= 18 },
192 .m2
= { .min
= 3, .max
= 7 },
193 .p
= { .min
= 5, .max
= 80 },
194 .p1
= { .min
= 1, .max
= 8 },
195 .p2
= { .dot_limit
= 200000,
196 .p2_slow
= 10, .p2_fast
= 5 },
199 static const intel_limit_t intel_limits_i9xx_lvds
= {
200 .dot
= { .min
= 20000, .max
= 400000 },
201 .vco
= { .min
= 1400000, .max
= 2800000 },
202 .n
= { .min
= 1, .max
= 6 },
203 .m
= { .min
= 70, .max
= 120 },
204 .m1
= { .min
= 8, .max
= 18 },
205 .m2
= { .min
= 3, .max
= 7 },
206 .p
= { .min
= 7, .max
= 98 },
207 .p1
= { .min
= 1, .max
= 8 },
208 .p2
= { .dot_limit
= 112000,
209 .p2_slow
= 14, .p2_fast
= 7 },
213 static const intel_limit_t intel_limits_g4x_sdvo
= {
214 .dot
= { .min
= 25000, .max
= 270000 },
215 .vco
= { .min
= 1750000, .max
= 3500000},
216 .n
= { .min
= 1, .max
= 4 },
217 .m
= { .min
= 104, .max
= 138 },
218 .m1
= { .min
= 17, .max
= 23 },
219 .m2
= { .min
= 5, .max
= 11 },
220 .p
= { .min
= 10, .max
= 30 },
221 .p1
= { .min
= 1, .max
= 3},
222 .p2
= { .dot_limit
= 270000,
228 static const intel_limit_t intel_limits_g4x_hdmi
= {
229 .dot
= { .min
= 22000, .max
= 400000 },
230 .vco
= { .min
= 1750000, .max
= 3500000},
231 .n
= { .min
= 1, .max
= 4 },
232 .m
= { .min
= 104, .max
= 138 },
233 .m1
= { .min
= 16, .max
= 23 },
234 .m2
= { .min
= 5, .max
= 11 },
235 .p
= { .min
= 5, .max
= 80 },
236 .p1
= { .min
= 1, .max
= 8},
237 .p2
= { .dot_limit
= 165000,
238 .p2_slow
= 10, .p2_fast
= 5 },
241 static const intel_limit_t intel_limits_g4x_single_channel_lvds
= {
242 .dot
= { .min
= 20000, .max
= 115000 },
243 .vco
= { .min
= 1750000, .max
= 3500000 },
244 .n
= { .min
= 1, .max
= 3 },
245 .m
= { .min
= 104, .max
= 138 },
246 .m1
= { .min
= 17, .max
= 23 },
247 .m2
= { .min
= 5, .max
= 11 },
248 .p
= { .min
= 28, .max
= 112 },
249 .p1
= { .min
= 2, .max
= 8 },
250 .p2
= { .dot_limit
= 0,
251 .p2_slow
= 14, .p2_fast
= 14
255 static const intel_limit_t intel_limits_g4x_dual_channel_lvds
= {
256 .dot
= { .min
= 80000, .max
= 224000 },
257 .vco
= { .min
= 1750000, .max
= 3500000 },
258 .n
= { .min
= 1, .max
= 3 },
259 .m
= { .min
= 104, .max
= 138 },
260 .m1
= { .min
= 17, .max
= 23 },
261 .m2
= { .min
= 5, .max
= 11 },
262 .p
= { .min
= 14, .max
= 42 },
263 .p1
= { .min
= 2, .max
= 6 },
264 .p2
= { .dot_limit
= 0,
265 .p2_slow
= 7, .p2_fast
= 7
269 static const intel_limit_t intel_limits_pineview_sdvo
= {
270 .dot
= { .min
= 20000, .max
= 400000},
271 .vco
= { .min
= 1700000, .max
= 3500000 },
272 /* Pineview's Ncounter is a ring counter */
273 .n
= { .min
= 3, .max
= 6 },
274 .m
= { .min
= 2, .max
= 256 },
275 /* Pineview only has one combined m divider, which we treat as m2. */
276 .m1
= { .min
= 0, .max
= 0 },
277 .m2
= { .min
= 0, .max
= 254 },
278 .p
= { .min
= 5, .max
= 80 },
279 .p1
= { .min
= 1, .max
= 8 },
280 .p2
= { .dot_limit
= 200000,
281 .p2_slow
= 10, .p2_fast
= 5 },
284 static const intel_limit_t intel_limits_pineview_lvds
= {
285 .dot
= { .min
= 20000, .max
= 400000 },
286 .vco
= { .min
= 1700000, .max
= 3500000 },
287 .n
= { .min
= 3, .max
= 6 },
288 .m
= { .min
= 2, .max
= 256 },
289 .m1
= { .min
= 0, .max
= 0 },
290 .m2
= { .min
= 0, .max
= 254 },
291 .p
= { .min
= 7, .max
= 112 },
292 .p1
= { .min
= 1, .max
= 8 },
293 .p2
= { .dot_limit
= 112000,
294 .p2_slow
= 14, .p2_fast
= 14 },
297 /* Ironlake / Sandybridge
299 * We calculate clock using (register_value + 2) for N/M1/M2, so here
300 * the range value for them is (actual_value - 2).
302 static const intel_limit_t intel_limits_ironlake_dac
= {
303 .dot
= { .min
= 25000, .max
= 350000 },
304 .vco
= { .min
= 1760000, .max
= 3510000 },
305 .n
= { .min
= 1, .max
= 5 },
306 .m
= { .min
= 79, .max
= 127 },
307 .m1
= { .min
= 12, .max
= 22 },
308 .m2
= { .min
= 5, .max
= 9 },
309 .p
= { .min
= 5, .max
= 80 },
310 .p1
= { .min
= 1, .max
= 8 },
311 .p2
= { .dot_limit
= 225000,
312 .p2_slow
= 10, .p2_fast
= 5 },
315 static const intel_limit_t intel_limits_ironlake_single_lvds
= {
316 .dot
= { .min
= 25000, .max
= 350000 },
317 .vco
= { .min
= 1760000, .max
= 3510000 },
318 .n
= { .min
= 1, .max
= 3 },
319 .m
= { .min
= 79, .max
= 118 },
320 .m1
= { .min
= 12, .max
= 22 },
321 .m2
= { .min
= 5, .max
= 9 },
322 .p
= { .min
= 28, .max
= 112 },
323 .p1
= { .min
= 2, .max
= 8 },
324 .p2
= { .dot_limit
= 225000,
325 .p2_slow
= 14, .p2_fast
= 14 },
328 static const intel_limit_t intel_limits_ironlake_dual_lvds
= {
329 .dot
= { .min
= 25000, .max
= 350000 },
330 .vco
= { .min
= 1760000, .max
= 3510000 },
331 .n
= { .min
= 1, .max
= 3 },
332 .m
= { .min
= 79, .max
= 127 },
333 .m1
= { .min
= 12, .max
= 22 },
334 .m2
= { .min
= 5, .max
= 9 },
335 .p
= { .min
= 14, .max
= 56 },
336 .p1
= { .min
= 2, .max
= 8 },
337 .p2
= { .dot_limit
= 225000,
338 .p2_slow
= 7, .p2_fast
= 7 },
341 /* LVDS 100mhz refclk limits. */
342 static const intel_limit_t intel_limits_ironlake_single_lvds_100m
= {
343 .dot
= { .min
= 25000, .max
= 350000 },
344 .vco
= { .min
= 1760000, .max
= 3510000 },
345 .n
= { .min
= 1, .max
= 2 },
346 .m
= { .min
= 79, .max
= 126 },
347 .m1
= { .min
= 12, .max
= 22 },
348 .m2
= { .min
= 5, .max
= 9 },
349 .p
= { .min
= 28, .max
= 112 },
350 .p1
= { .min
= 2, .max
= 8 },
351 .p2
= { .dot_limit
= 225000,
352 .p2_slow
= 14, .p2_fast
= 14 },
355 static const intel_limit_t intel_limits_ironlake_dual_lvds_100m
= {
356 .dot
= { .min
= 25000, .max
= 350000 },
357 .vco
= { .min
= 1760000, .max
= 3510000 },
358 .n
= { .min
= 1, .max
= 3 },
359 .m
= { .min
= 79, .max
= 126 },
360 .m1
= { .min
= 12, .max
= 22 },
361 .m2
= { .min
= 5, .max
= 9 },
362 .p
= { .min
= 14, .max
= 42 },
363 .p1
= { .min
= 2, .max
= 6 },
364 .p2
= { .dot_limit
= 225000,
365 .p2_slow
= 7, .p2_fast
= 7 },
368 static const intel_limit_t intel_limits_vlv
= {
370 * These are the data rate limits (measured in fast clocks)
371 * since those are the strictest limits we have. The fast
372 * clock and actual rate limits are more relaxed, so checking
373 * them would make no difference.
375 .dot
= { .min
= 25000 * 5, .max
= 270000 * 5 },
376 .vco
= { .min
= 4000000, .max
= 6000000 },
377 .n
= { .min
= 1, .max
= 7 },
378 .m1
= { .min
= 2, .max
= 3 },
379 .m2
= { .min
= 11, .max
= 156 },
380 .p1
= { .min
= 2, .max
= 3 },
381 .p2
= { .p2_slow
= 2, .p2_fast
= 20 }, /* slow=min, fast=max */
384 static const intel_limit_t intel_limits_chv
= {
386 * These are the data rate limits (measured in fast clocks)
387 * since those are the strictest limits we have. The fast
388 * clock and actual rate limits are more relaxed, so checking
389 * them would make no difference.
391 .dot
= { .min
= 25000 * 5, .max
= 540000 * 5},
392 .vco
= { .min
= 4860000, .max
= 6700000 },
393 .n
= { .min
= 1, .max
= 1 },
394 .m1
= { .min
= 2, .max
= 2 },
395 .m2
= { .min
= 24 << 22, .max
= 175 << 22 },
396 .p1
= { .min
= 2, .max
= 4 },
397 .p2
= { .p2_slow
= 1, .p2_fast
= 14 },
400 static void vlv_clock(int refclk
, intel_clock_t
*clock
)
402 clock
->m
= clock
->m1
* clock
->m2
;
403 clock
->p
= clock
->p1
* clock
->p2
;
404 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
406 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
);
407 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
411 * Returns whether any output on the specified pipe is of the specified type
413 static bool intel_pipe_has_type(struct drm_crtc
*crtc
, int type
)
415 struct drm_device
*dev
= crtc
->dev
;
416 struct intel_encoder
*encoder
;
418 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
419 if (encoder
->type
== type
)
425 static const intel_limit_t
*intel_ironlake_limit(struct drm_crtc
*crtc
,
428 struct drm_device
*dev
= crtc
->dev
;
429 const intel_limit_t
*limit
;
431 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
432 if (intel_is_dual_link_lvds(dev
)) {
433 if (refclk
== 100000)
434 limit
= &intel_limits_ironlake_dual_lvds_100m
;
436 limit
= &intel_limits_ironlake_dual_lvds
;
438 if (refclk
== 100000)
439 limit
= &intel_limits_ironlake_single_lvds_100m
;
441 limit
= &intel_limits_ironlake_single_lvds
;
444 limit
= &intel_limits_ironlake_dac
;
449 static const intel_limit_t
*intel_g4x_limit(struct drm_crtc
*crtc
)
451 struct drm_device
*dev
= crtc
->dev
;
452 const intel_limit_t
*limit
;
454 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
455 if (intel_is_dual_link_lvds(dev
))
456 limit
= &intel_limits_g4x_dual_channel_lvds
;
458 limit
= &intel_limits_g4x_single_channel_lvds
;
459 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
) ||
460 intel_pipe_has_type(crtc
, INTEL_OUTPUT_ANALOG
)) {
461 limit
= &intel_limits_g4x_hdmi
;
462 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_SDVO
)) {
463 limit
= &intel_limits_g4x_sdvo
;
464 } else /* The option is for other outputs */
465 limit
= &intel_limits_i9xx_sdvo
;
470 static const intel_limit_t
*intel_limit(struct drm_crtc
*crtc
, int refclk
)
472 struct drm_device
*dev
= crtc
->dev
;
473 const intel_limit_t
*limit
;
475 if (HAS_PCH_SPLIT(dev
))
476 limit
= intel_ironlake_limit(crtc
, refclk
);
477 else if (IS_G4X(dev
)) {
478 limit
= intel_g4x_limit(crtc
);
479 } else if (IS_PINEVIEW(dev
)) {
480 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
481 limit
= &intel_limits_pineview_lvds
;
483 limit
= &intel_limits_pineview_sdvo
;
484 } else if (IS_CHERRYVIEW(dev
)) {
485 limit
= &intel_limits_chv
;
486 } else if (IS_VALLEYVIEW(dev
)) {
487 limit
= &intel_limits_vlv
;
488 } else if (!IS_GEN2(dev
)) {
489 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
490 limit
= &intel_limits_i9xx_lvds
;
492 limit
= &intel_limits_i9xx_sdvo
;
494 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
495 limit
= &intel_limits_i8xx_lvds
;
496 else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DVO
))
497 limit
= &intel_limits_i8xx_dvo
;
499 limit
= &intel_limits_i8xx_dac
;
504 /* m1 is reserved as 0 in Pineview, n is a ring counter */
505 static void pineview_clock(int refclk
, intel_clock_t
*clock
)
507 clock
->m
= clock
->m2
+ 2;
508 clock
->p
= clock
->p1
* clock
->p2
;
509 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
511 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
);
512 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
515 static uint32_t i9xx_dpll_compute_m(struct dpll
*dpll
)
517 return 5 * (dpll
->m1
+ 2) + (dpll
->m2
+ 2);
520 static void i9xx_clock(int refclk
, intel_clock_t
*clock
)
522 clock
->m
= i9xx_dpll_compute_m(clock
);
523 clock
->p
= clock
->p1
* clock
->p2
;
524 if (WARN_ON(clock
->n
+ 2 == 0 || clock
->p
== 0))
526 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
+ 2);
527 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
530 static void chv_clock(int refclk
, intel_clock_t
*clock
)
532 clock
->m
= clock
->m1
* clock
->m2
;
533 clock
->p
= clock
->p1
* clock
->p2
;
534 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
536 clock
->vco
= DIV_ROUND_CLOSEST_ULL((uint64_t)refclk
* clock
->m
,
538 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
541 #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
543 * Returns whether the given set of divisors are valid for a given refclk with
544 * the given connectors.
547 static bool intel_PLL_is_valid(struct drm_device
*dev
,
548 const intel_limit_t
*limit
,
549 const intel_clock_t
*clock
)
551 if (clock
->n
< limit
->n
.min
|| limit
->n
.max
< clock
->n
)
552 INTELPllInvalid("n out of range\n");
553 if (clock
->p1
< limit
->p1
.min
|| limit
->p1
.max
< clock
->p1
)
554 INTELPllInvalid("p1 out of range\n");
555 if (clock
->m2
< limit
->m2
.min
|| limit
->m2
.max
< clock
->m2
)
556 INTELPllInvalid("m2 out of range\n");
557 if (clock
->m1
< limit
->m1
.min
|| limit
->m1
.max
< clock
->m1
)
558 INTELPllInvalid("m1 out of range\n");
560 if (!IS_PINEVIEW(dev
) && !IS_VALLEYVIEW(dev
))
561 if (clock
->m1
<= clock
->m2
)
562 INTELPllInvalid("m1 <= m2\n");
564 if (!IS_VALLEYVIEW(dev
)) {
565 if (clock
->p
< limit
->p
.min
|| limit
->p
.max
< clock
->p
)
566 INTELPllInvalid("p out of range\n");
567 if (clock
->m
< limit
->m
.min
|| limit
->m
.max
< clock
->m
)
568 INTELPllInvalid("m out of range\n");
571 if (clock
->vco
< limit
->vco
.min
|| limit
->vco
.max
< clock
->vco
)
572 INTELPllInvalid("vco out of range\n");
573 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
574 * connector, etc., rather than just a single range.
576 if (clock
->dot
< limit
->dot
.min
|| limit
->dot
.max
< clock
->dot
)
577 INTELPllInvalid("dot out of range\n");
583 i9xx_find_best_dpll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
584 int target
, int refclk
, intel_clock_t
*match_clock
,
585 intel_clock_t
*best_clock
)
587 struct drm_device
*dev
= crtc
->dev
;
591 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
593 * For LVDS just rely on its current settings for dual-channel.
594 * We haven't figured out how to reliably set up different
595 * single/dual channel state, if we even can.
597 if (intel_is_dual_link_lvds(dev
))
598 clock
.p2
= limit
->p2
.p2_fast
;
600 clock
.p2
= limit
->p2
.p2_slow
;
602 if (target
< limit
->p2
.dot_limit
)
603 clock
.p2
= limit
->p2
.p2_slow
;
605 clock
.p2
= limit
->p2
.p2_fast
;
608 memset(best_clock
, 0, sizeof(*best_clock
));
610 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
612 for (clock
.m2
= limit
->m2
.min
;
613 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
614 if (clock
.m2
>= clock
.m1
)
616 for (clock
.n
= limit
->n
.min
;
617 clock
.n
<= limit
->n
.max
; clock
.n
++) {
618 for (clock
.p1
= limit
->p1
.min
;
619 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
622 i9xx_clock(refclk
, &clock
);
623 if (!intel_PLL_is_valid(dev
, limit
,
627 clock
.p
!= match_clock
->p
)
630 this_err
= abs(clock
.dot
- target
);
631 if (this_err
< err
) {
640 return (err
!= target
);
644 pnv_find_best_dpll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
645 int target
, int refclk
, intel_clock_t
*match_clock
,
646 intel_clock_t
*best_clock
)
648 struct drm_device
*dev
= crtc
->dev
;
652 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
654 * For LVDS just rely on its current settings for dual-channel.
655 * We haven't figured out how to reliably set up different
656 * single/dual channel state, if we even can.
658 if (intel_is_dual_link_lvds(dev
))
659 clock
.p2
= limit
->p2
.p2_fast
;
661 clock
.p2
= limit
->p2
.p2_slow
;
663 if (target
< limit
->p2
.dot_limit
)
664 clock
.p2
= limit
->p2
.p2_slow
;
666 clock
.p2
= limit
->p2
.p2_fast
;
669 memset(best_clock
, 0, sizeof(*best_clock
));
671 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
673 for (clock
.m2
= limit
->m2
.min
;
674 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
675 for (clock
.n
= limit
->n
.min
;
676 clock
.n
<= limit
->n
.max
; clock
.n
++) {
677 for (clock
.p1
= limit
->p1
.min
;
678 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
681 pineview_clock(refclk
, &clock
);
682 if (!intel_PLL_is_valid(dev
, limit
,
686 clock
.p
!= match_clock
->p
)
689 this_err
= abs(clock
.dot
- target
);
690 if (this_err
< err
) {
699 return (err
!= target
);
703 g4x_find_best_dpll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
704 int target
, int refclk
, intel_clock_t
*match_clock
,
705 intel_clock_t
*best_clock
)
707 struct drm_device
*dev
= crtc
->dev
;
711 /* approximately equals target * 0.00585 */
712 int err_most
= (target
>> 8) + (target
>> 9);
715 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
716 if (intel_is_dual_link_lvds(dev
))
717 clock
.p2
= limit
->p2
.p2_fast
;
719 clock
.p2
= limit
->p2
.p2_slow
;
721 if (target
< limit
->p2
.dot_limit
)
722 clock
.p2
= limit
->p2
.p2_slow
;
724 clock
.p2
= limit
->p2
.p2_fast
;
727 memset(best_clock
, 0, sizeof(*best_clock
));
728 max_n
= limit
->n
.max
;
729 /* based on hardware requirement, prefer smaller n to precision */
730 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
731 /* based on hardware requirement, prefere larger m1,m2 */
732 for (clock
.m1
= limit
->m1
.max
;
733 clock
.m1
>= limit
->m1
.min
; clock
.m1
--) {
734 for (clock
.m2
= limit
->m2
.max
;
735 clock
.m2
>= limit
->m2
.min
; clock
.m2
--) {
736 for (clock
.p1
= limit
->p1
.max
;
737 clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
740 i9xx_clock(refclk
, &clock
);
741 if (!intel_PLL_is_valid(dev
, limit
,
745 this_err
= abs(clock
.dot
- target
);
746 if (this_err
< err_most
) {
760 vlv_find_best_dpll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
761 int target
, int refclk
, intel_clock_t
*match_clock
,
762 intel_clock_t
*best_clock
)
764 struct drm_device
*dev
= crtc
->dev
;
766 unsigned int bestppm
= 1000000;
767 /* min update 19.2 MHz */
768 int max_n
= min(limit
->n
.max
, refclk
/ 19200);
771 target
*= 5; /* fast clock */
773 memset(best_clock
, 0, sizeof(*best_clock
));
775 /* based on hardware requirement, prefer smaller n to precision */
776 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
777 for (clock
.p1
= limit
->p1
.max
; clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
778 for (clock
.p2
= limit
->p2
.p2_fast
; clock
.p2
>= limit
->p2
.p2_slow
;
779 clock
.p2
-= clock
.p2
> 10 ? 2 : 1) {
780 clock
.p
= clock
.p1
* clock
.p2
;
781 /* based on hardware requirement, prefer bigger m1,m2 values */
782 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
; clock
.m1
++) {
783 unsigned int ppm
, diff
;
785 clock
.m2
= DIV_ROUND_CLOSEST(target
* clock
.p
* clock
.n
,
788 vlv_clock(refclk
, &clock
);
790 if (!intel_PLL_is_valid(dev
, limit
,
794 diff
= abs(clock
.dot
- target
);
795 ppm
= div_u64(1000000ULL * diff
, target
);
797 if (ppm
< 100 && clock
.p
> best_clock
->p
) {
803 if (bestppm
>= 10 && ppm
< bestppm
- 10) {
817 chv_find_best_dpll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
818 int target
, int refclk
, intel_clock_t
*match_clock
,
819 intel_clock_t
*best_clock
)
821 struct drm_device
*dev
= crtc
->dev
;
826 memset(best_clock
, 0, sizeof(*best_clock
));
829 * Based on hardware doc, the n always set to 1, and m1 always
830 * set to 2. If requires to support 200Mhz refclk, we need to
831 * revisit this because n may not 1 anymore.
833 clock
.n
= 1, clock
.m1
= 2;
834 target
*= 5; /* fast clock */
836 for (clock
.p1
= limit
->p1
.max
; clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
837 for (clock
.p2
= limit
->p2
.p2_fast
;
838 clock
.p2
>= limit
->p2
.p2_slow
;
839 clock
.p2
-= clock
.p2
> 10 ? 2 : 1) {
841 clock
.p
= clock
.p1
* clock
.p2
;
843 m2
= DIV_ROUND_CLOSEST_ULL(((uint64_t)target
* clock
.p
*
844 clock
.n
) << 22, refclk
* clock
.m1
);
846 if (m2
> INT_MAX
/clock
.m1
)
851 chv_clock(refclk
, &clock
);
853 if (!intel_PLL_is_valid(dev
, limit
, &clock
))
856 /* based on hardware requirement, prefer bigger p
858 if (clock
.p
> best_clock
->p
) {
868 bool intel_crtc_active(struct drm_crtc
*crtc
)
870 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
872 /* Be paranoid as we can arrive here with only partial
873 * state retrieved from the hardware during setup.
875 * We can ditch the adjusted_mode.crtc_clock check as soon
876 * as Haswell has gained clock readout/fastboot support.
878 * We can ditch the crtc->primary->fb check as soon as we can
879 * properly reconstruct framebuffers.
881 return intel_crtc
->active
&& crtc
->primary
->fb
&&
882 intel_crtc
->config
.adjusted_mode
.crtc_clock
;
885 enum transcoder
intel_pipe_to_cpu_transcoder(struct drm_i915_private
*dev_priv
,
888 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
889 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
891 return intel_crtc
->config
.cpu_transcoder
;
894 static void g4x_wait_for_vblank(struct drm_device
*dev
, int pipe
)
896 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
897 u32 frame
, frame_reg
= PIPE_FRMCOUNT_GM45(pipe
);
899 frame
= I915_READ(frame_reg
);
901 if (wait_for(I915_READ_NOTRACE(frame_reg
) != frame
, 50))
902 WARN(1, "vblank wait timed out\n");
906 * intel_wait_for_vblank - wait for vblank on a given pipe
908 * @pipe: pipe to wait for
910 * Wait for vblank to occur on a given pipe. Needed for various bits of
913 void intel_wait_for_vblank(struct drm_device
*dev
, int pipe
)
915 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
916 int pipestat_reg
= PIPESTAT(pipe
);
918 if (IS_G4X(dev
) || INTEL_INFO(dev
)->gen
>= 5) {
919 g4x_wait_for_vblank(dev
, pipe
);
923 /* Clear existing vblank status. Note this will clear any other
924 * sticky status fields as well.
926 * This races with i915_driver_irq_handler() with the result
927 * that either function could miss a vblank event. Here it is not
928 * fatal, as we will either wait upon the next vblank interrupt or
929 * timeout. Generally speaking intel_wait_for_vblank() is only
930 * called during modeset at which time the GPU should be idle and
931 * should *not* be performing page flips and thus not waiting on
933 * Currently, the result of us stealing a vblank from the irq
934 * handler is that a single frame will be skipped during swapbuffers.
936 I915_WRITE(pipestat_reg
,
937 I915_READ(pipestat_reg
) | PIPE_VBLANK_INTERRUPT_STATUS
);
939 /* Wait for vblank interrupt bit to set */
940 if (wait_for(I915_READ(pipestat_reg
) &
941 PIPE_VBLANK_INTERRUPT_STATUS
,
943 DRM_DEBUG_KMS("vblank wait timed out\n");
946 static bool pipe_dsl_stopped(struct drm_device
*dev
, enum pipe pipe
)
948 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
949 u32 reg
= PIPEDSL(pipe
);
954 line_mask
= DSL_LINEMASK_GEN2
;
956 line_mask
= DSL_LINEMASK_GEN3
;
958 line1
= I915_READ(reg
) & line_mask
;
960 line2
= I915_READ(reg
) & line_mask
;
962 return line1
== line2
;
966 * intel_wait_for_pipe_off - wait for pipe to turn off
968 * @pipe: pipe to wait for
970 * After disabling a pipe, we can't wait for vblank in the usual way,
971 * spinning on the vblank interrupt status bit, since we won't actually
972 * see an interrupt when the pipe is disabled.
975 * wait for the pipe register state bit to turn off
978 * wait for the display line value to settle (it usually
979 * ends up stopping at the start of the next frame).
982 void intel_wait_for_pipe_off(struct drm_device
*dev
, int pipe
)
984 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
985 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
988 if (INTEL_INFO(dev
)->gen
>= 4) {
989 int reg
= PIPECONF(cpu_transcoder
);
991 /* Wait for the Pipe State to go off */
992 if (wait_for((I915_READ(reg
) & I965_PIPECONF_ACTIVE
) == 0,
994 WARN(1, "pipe_off wait timed out\n");
996 /* Wait for the display line to settle */
997 if (wait_for(pipe_dsl_stopped(dev
, pipe
), 100))
998 WARN(1, "pipe_off wait timed out\n");
1003 * ibx_digital_port_connected - is the specified port connected?
1004 * @dev_priv: i915 private structure
1005 * @port: the port to test
1007 * Returns true if @port is connected, false otherwise.
1009 bool ibx_digital_port_connected(struct drm_i915_private
*dev_priv
,
1010 struct intel_digital_port
*port
)
1014 if (HAS_PCH_IBX(dev_priv
->dev
)) {
1015 switch (port
->port
) {
1017 bit
= SDE_PORTB_HOTPLUG
;
1020 bit
= SDE_PORTC_HOTPLUG
;
1023 bit
= SDE_PORTD_HOTPLUG
;
1029 switch (port
->port
) {
1031 bit
= SDE_PORTB_HOTPLUG_CPT
;
1034 bit
= SDE_PORTC_HOTPLUG_CPT
;
1037 bit
= SDE_PORTD_HOTPLUG_CPT
;
1044 return I915_READ(SDEISR
) & bit
;
1047 static const char *state_string(bool enabled
)
1049 return enabled
? "on" : "off";
1052 /* Only for pre-ILK configs */
1053 void assert_pll(struct drm_i915_private
*dev_priv
,
1054 enum pipe pipe
, bool state
)
1061 val
= I915_READ(reg
);
1062 cur_state
= !!(val
& DPLL_VCO_ENABLE
);
1063 WARN(cur_state
!= state
,
1064 "PLL state assertion failure (expected %s, current %s)\n",
1065 state_string(state
), state_string(cur_state
));
1068 /* XXX: the dsi pll is shared between MIPI DSI ports */
1069 static void assert_dsi_pll(struct drm_i915_private
*dev_priv
, bool state
)
1074 mutex_lock(&dev_priv
->dpio_lock
);
1075 val
= vlv_cck_read(dev_priv
, CCK_REG_DSI_PLL_CONTROL
);
1076 mutex_unlock(&dev_priv
->dpio_lock
);
1078 cur_state
= val
& DSI_PLL_VCO_EN
;
1079 WARN(cur_state
!= state
,
1080 "DSI PLL state assertion failure (expected %s, current %s)\n",
1081 state_string(state
), state_string(cur_state
));
1083 #define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true)
1084 #define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false)
1086 struct intel_shared_dpll
*
1087 intel_crtc_to_shared_dpll(struct intel_crtc
*crtc
)
1089 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
1091 if (crtc
->config
.shared_dpll
< 0)
1094 return &dev_priv
->shared_dplls
[crtc
->config
.shared_dpll
];
1098 void assert_shared_dpll(struct drm_i915_private
*dev_priv
,
1099 struct intel_shared_dpll
*pll
,
1103 struct intel_dpll_hw_state hw_state
;
1106 "asserting DPLL %s with no DPLL\n", state_string(state
)))
1109 cur_state
= pll
->get_hw_state(dev_priv
, pll
, &hw_state
);
1110 WARN(cur_state
!= state
,
1111 "%s assertion failure (expected %s, current %s)\n",
1112 pll
->name
, state_string(state
), state_string(cur_state
));
1115 static void assert_fdi_tx(struct drm_i915_private
*dev_priv
,
1116 enum pipe pipe
, bool state
)
1121 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1124 if (HAS_DDI(dev_priv
->dev
)) {
1125 /* DDI does not have a specific FDI_TX register */
1126 reg
= TRANS_DDI_FUNC_CTL(cpu_transcoder
);
1127 val
= I915_READ(reg
);
1128 cur_state
= !!(val
& TRANS_DDI_FUNC_ENABLE
);
1130 reg
= FDI_TX_CTL(pipe
);
1131 val
= I915_READ(reg
);
1132 cur_state
= !!(val
& FDI_TX_ENABLE
);
1134 WARN(cur_state
!= state
,
1135 "FDI TX state assertion failure (expected %s, current %s)\n",
1136 state_string(state
), state_string(cur_state
));
1138 #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
1139 #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
1141 static void assert_fdi_rx(struct drm_i915_private
*dev_priv
,
1142 enum pipe pipe
, bool state
)
1148 reg
= FDI_RX_CTL(pipe
);
1149 val
= I915_READ(reg
);
1150 cur_state
= !!(val
& FDI_RX_ENABLE
);
1151 WARN(cur_state
!= state
,
1152 "FDI RX state assertion failure (expected %s, current %s)\n",
1153 state_string(state
), state_string(cur_state
));
1155 #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
1156 #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
1158 static void assert_fdi_tx_pll_enabled(struct drm_i915_private
*dev_priv
,
1164 /* ILK FDI PLL is always enabled */
1165 if (INTEL_INFO(dev_priv
->dev
)->gen
== 5)
1168 /* On Haswell, DDI ports are responsible for the FDI PLL setup */
1169 if (HAS_DDI(dev_priv
->dev
))
1172 reg
= FDI_TX_CTL(pipe
);
1173 val
= I915_READ(reg
);
1174 WARN(!(val
& FDI_TX_PLL_ENABLE
), "FDI TX PLL assertion failure, should be active but is disabled\n");
1177 void assert_fdi_rx_pll(struct drm_i915_private
*dev_priv
,
1178 enum pipe pipe
, bool state
)
1184 reg
= FDI_RX_CTL(pipe
);
1185 val
= I915_READ(reg
);
1186 cur_state
= !!(val
& FDI_RX_PLL_ENABLE
);
1187 WARN(cur_state
!= state
,
1188 "FDI RX PLL assertion failure (expected %s, current %s)\n",
1189 state_string(state
), state_string(cur_state
));
1192 static void assert_panel_unlocked(struct drm_i915_private
*dev_priv
,
1195 int pp_reg
, lvds_reg
;
1197 enum pipe panel_pipe
= PIPE_A
;
1200 if (HAS_PCH_SPLIT(dev_priv
->dev
)) {
1201 pp_reg
= PCH_PP_CONTROL
;
1202 lvds_reg
= PCH_LVDS
;
1204 pp_reg
= PP_CONTROL
;
1208 val
= I915_READ(pp_reg
);
1209 if (!(val
& PANEL_POWER_ON
) ||
1210 ((val
& PANEL_UNLOCK_REGS
) == PANEL_UNLOCK_REGS
))
1213 if (I915_READ(lvds_reg
) & LVDS_PIPEB_SELECT
)
1214 panel_pipe
= PIPE_B
;
1216 WARN(panel_pipe
== pipe
&& locked
,
1217 "panel assertion failure, pipe %c regs locked\n",
1221 static void assert_cursor(struct drm_i915_private
*dev_priv
,
1222 enum pipe pipe
, bool state
)
1224 struct drm_device
*dev
= dev_priv
->dev
;
1227 if (IS_845G(dev
) || IS_I865G(dev
))
1228 cur_state
= I915_READ(_CURACNTR
) & CURSOR_ENABLE
;
1230 cur_state
= I915_READ(CURCNTR(pipe
)) & CURSOR_MODE
;
1232 WARN(cur_state
!= state
,
1233 "cursor on pipe %c assertion failure (expected %s, current %s)\n",
1234 pipe_name(pipe
), state_string(state
), state_string(cur_state
));
1236 #define assert_cursor_enabled(d, p) assert_cursor(d, p, true)
1237 #define assert_cursor_disabled(d, p) assert_cursor(d, p, false)
1239 void assert_pipe(struct drm_i915_private
*dev_priv
,
1240 enum pipe pipe
, bool state
)
1245 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1248 /* if we need the pipe A quirk it must be always on */
1249 if (pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
)
1252 if (!intel_display_power_enabled(dev_priv
,
1253 POWER_DOMAIN_TRANSCODER(cpu_transcoder
))) {
1256 reg
= PIPECONF(cpu_transcoder
);
1257 val
= I915_READ(reg
);
1258 cur_state
= !!(val
& PIPECONF_ENABLE
);
1261 WARN(cur_state
!= state
,
1262 "pipe %c assertion failure (expected %s, current %s)\n",
1263 pipe_name(pipe
), state_string(state
), state_string(cur_state
));
1266 static void assert_plane(struct drm_i915_private
*dev_priv
,
1267 enum plane plane
, bool state
)
1273 reg
= DSPCNTR(plane
);
1274 val
= I915_READ(reg
);
1275 cur_state
= !!(val
& DISPLAY_PLANE_ENABLE
);
1276 WARN(cur_state
!= state
,
1277 "plane %c assertion failure (expected %s, current %s)\n",
1278 plane_name(plane
), state_string(state
), state_string(cur_state
));
1281 #define assert_plane_enabled(d, p) assert_plane(d, p, true)
1282 #define assert_plane_disabled(d, p) assert_plane(d, p, false)
1284 static void assert_planes_disabled(struct drm_i915_private
*dev_priv
,
1287 struct drm_device
*dev
= dev_priv
->dev
;
1292 /* Primary planes are fixed to pipes on gen4+ */
1293 if (INTEL_INFO(dev
)->gen
>= 4) {
1294 reg
= DSPCNTR(pipe
);
1295 val
= I915_READ(reg
);
1296 WARN(val
& DISPLAY_PLANE_ENABLE
,
1297 "plane %c assertion failure, should be disabled but not\n",
1302 /* Need to check both planes against the pipe */
1305 val
= I915_READ(reg
);
1306 cur_pipe
= (val
& DISPPLANE_SEL_PIPE_MASK
) >>
1307 DISPPLANE_SEL_PIPE_SHIFT
;
1308 WARN((val
& DISPLAY_PLANE_ENABLE
) && pipe
== cur_pipe
,
1309 "plane %c assertion failure, should be off on pipe %c but is still active\n",
1310 plane_name(i
), pipe_name(pipe
));
1314 static void assert_sprites_disabled(struct drm_i915_private
*dev_priv
,
1317 struct drm_device
*dev
= dev_priv
->dev
;
1321 if (IS_VALLEYVIEW(dev
)) {
1322 for_each_sprite(pipe
, sprite
) {
1323 reg
= SPCNTR(pipe
, sprite
);
1324 val
= I915_READ(reg
);
1325 WARN(val
& SP_ENABLE
,
1326 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1327 sprite_name(pipe
, sprite
), pipe_name(pipe
));
1329 } else if (INTEL_INFO(dev
)->gen
>= 7) {
1331 val
= I915_READ(reg
);
1332 WARN(val
& SPRITE_ENABLE
,
1333 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1334 plane_name(pipe
), pipe_name(pipe
));
1335 } else if (INTEL_INFO(dev
)->gen
>= 5) {
1336 reg
= DVSCNTR(pipe
);
1337 val
= I915_READ(reg
);
1338 WARN(val
& DVS_ENABLE
,
1339 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1340 plane_name(pipe
), pipe_name(pipe
));
1344 static void ibx_assert_pch_refclk_enabled(struct drm_i915_private
*dev_priv
)
1349 WARN_ON(!(HAS_PCH_IBX(dev_priv
->dev
) || HAS_PCH_CPT(dev_priv
->dev
)));
1351 val
= I915_READ(PCH_DREF_CONTROL
);
1352 enabled
= !!(val
& (DREF_SSC_SOURCE_MASK
| DREF_NONSPREAD_SOURCE_MASK
|
1353 DREF_SUPERSPREAD_SOURCE_MASK
));
1354 WARN(!enabled
, "PCH refclk assertion failure, should be active but is disabled\n");
1357 static void assert_pch_transcoder_disabled(struct drm_i915_private
*dev_priv
,
1364 reg
= PCH_TRANSCONF(pipe
);
1365 val
= I915_READ(reg
);
1366 enabled
= !!(val
& TRANS_ENABLE
);
1368 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1372 static bool dp_pipe_enabled(struct drm_i915_private
*dev_priv
,
1373 enum pipe pipe
, u32 port_sel
, u32 val
)
1375 if ((val
& DP_PORT_EN
) == 0)
1378 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1379 u32 trans_dp_ctl_reg
= TRANS_DP_CTL(pipe
);
1380 u32 trans_dp_ctl
= I915_READ(trans_dp_ctl_reg
);
1381 if ((trans_dp_ctl
& TRANS_DP_PORT_SEL_MASK
) != port_sel
)
1383 } else if (IS_CHERRYVIEW(dev_priv
->dev
)) {
1384 if ((val
& DP_PIPE_MASK_CHV
) != DP_PIPE_SELECT_CHV(pipe
))
1387 if ((val
& DP_PIPE_MASK
) != (pipe
<< 30))
1393 static bool hdmi_pipe_enabled(struct drm_i915_private
*dev_priv
,
1394 enum pipe pipe
, u32 val
)
1396 if ((val
& SDVO_ENABLE
) == 0)
1399 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1400 if ((val
& SDVO_PIPE_SEL_MASK_CPT
) != SDVO_PIPE_SEL_CPT(pipe
))
1402 } else if (IS_CHERRYVIEW(dev_priv
->dev
)) {
1403 if ((val
& SDVO_PIPE_SEL_MASK_CHV
) != SDVO_PIPE_SEL_CHV(pipe
))
1406 if ((val
& SDVO_PIPE_SEL_MASK
) != SDVO_PIPE_SEL(pipe
))
1412 static bool lvds_pipe_enabled(struct drm_i915_private
*dev_priv
,
1413 enum pipe pipe
, u32 val
)
1415 if ((val
& LVDS_PORT_EN
) == 0)
1418 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1419 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1422 if ((val
& LVDS_PIPE_MASK
) != LVDS_PIPE(pipe
))
1428 static bool adpa_pipe_enabled(struct drm_i915_private
*dev_priv
,
1429 enum pipe pipe
, u32 val
)
1431 if ((val
& ADPA_DAC_ENABLE
) == 0)
1433 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1434 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1437 if ((val
& ADPA_PIPE_SELECT_MASK
) != ADPA_PIPE_SELECT(pipe
))
1443 static void assert_pch_dp_disabled(struct drm_i915_private
*dev_priv
,
1444 enum pipe pipe
, int reg
, u32 port_sel
)
1446 u32 val
= I915_READ(reg
);
1447 WARN(dp_pipe_enabled(dev_priv
, pipe
, port_sel
, val
),
1448 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
1449 reg
, pipe_name(pipe
));
1451 WARN(HAS_PCH_IBX(dev_priv
->dev
) && (val
& DP_PORT_EN
) == 0
1452 && (val
& DP_PIPEB_SELECT
),
1453 "IBX PCH dp port still using transcoder B\n");
1456 static void assert_pch_hdmi_disabled(struct drm_i915_private
*dev_priv
,
1457 enum pipe pipe
, int reg
)
1459 u32 val
= I915_READ(reg
);
1460 WARN(hdmi_pipe_enabled(dev_priv
, pipe
, val
),
1461 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
1462 reg
, pipe_name(pipe
));
1464 WARN(HAS_PCH_IBX(dev_priv
->dev
) && (val
& SDVO_ENABLE
) == 0
1465 && (val
& SDVO_PIPE_B_SELECT
),
1466 "IBX PCH hdmi port still using transcoder B\n");
1469 static void assert_pch_ports_disabled(struct drm_i915_private
*dev_priv
,
1475 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_B
, TRANS_DP_PORT_SEL_B
);
1476 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_C
, TRANS_DP_PORT_SEL_C
);
1477 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_D
, TRANS_DP_PORT_SEL_D
);
1480 val
= I915_READ(reg
);
1481 WARN(adpa_pipe_enabled(dev_priv
, pipe
, val
),
1482 "PCH VGA enabled on transcoder %c, should be disabled\n",
1486 val
= I915_READ(reg
);
1487 WARN(lvds_pipe_enabled(dev_priv
, pipe
, val
),
1488 "PCH LVDS enabled on transcoder %c, should be disabled\n",
1491 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIB
);
1492 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIC
);
1493 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMID
);
1496 static void intel_init_dpio(struct drm_device
*dev
)
1498 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1500 if (!IS_VALLEYVIEW(dev
))
1504 * IOSF_PORT_DPIO is used for VLV x2 PHY (DP/HDMI B and C),
1505 * CHV x1 PHY (DP/HDMI D)
1506 * IOSF_PORT_DPIO_2 is used for CHV x2 PHY (DP/HDMI B and C)
1508 if (IS_CHERRYVIEW(dev
)) {
1509 DPIO_PHY_IOSF_PORT(DPIO_PHY0
) = IOSF_PORT_DPIO_2
;
1510 DPIO_PHY_IOSF_PORT(DPIO_PHY1
) = IOSF_PORT_DPIO
;
1512 DPIO_PHY_IOSF_PORT(DPIO_PHY0
) = IOSF_PORT_DPIO
;
1516 static void intel_reset_dpio(struct drm_device
*dev
)
1518 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1520 if (IS_CHERRYVIEW(dev
)) {
1524 for (phy
= DPIO_PHY0
; phy
< I915_NUM_PHYS_VLV
; phy
++) {
1525 /* Poll for phypwrgood signal */
1526 if (wait_for(I915_READ(DISPLAY_PHY_STATUS
) &
1527 PHY_POWERGOOD(phy
), 1))
1528 DRM_ERROR("Display PHY %d is not power up\n", phy
);
1531 * Deassert common lane reset for PHY.
1533 * This should only be done on init and resume from S3
1534 * with both PLLs disabled, or we risk losing DPIO and
1535 * PLL synchronization.
1537 val
= I915_READ(DISPLAY_PHY_CONTROL
);
1538 I915_WRITE(DISPLAY_PHY_CONTROL
,
1539 PHY_COM_LANE_RESET_DEASSERT(phy
, val
));
1544 static void vlv_enable_pll(struct intel_crtc
*crtc
)
1546 struct drm_device
*dev
= crtc
->base
.dev
;
1547 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1548 int reg
= DPLL(crtc
->pipe
);
1549 u32 dpll
= crtc
->config
.dpll_hw_state
.dpll
;
1551 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1553 /* No really, not for ILK+ */
1554 BUG_ON(!IS_VALLEYVIEW(dev_priv
->dev
));
1556 /* PLL is protected by panel, make sure we can write it */
1557 if (IS_MOBILE(dev_priv
->dev
) && !IS_I830(dev_priv
->dev
))
1558 assert_panel_unlocked(dev_priv
, crtc
->pipe
);
1560 I915_WRITE(reg
, dpll
);
1564 if (wait_for(((I915_READ(reg
) & DPLL_LOCK_VLV
) == DPLL_LOCK_VLV
), 1))
1565 DRM_ERROR("DPLL %d failed to lock\n", crtc
->pipe
);
1567 I915_WRITE(DPLL_MD(crtc
->pipe
), crtc
->config
.dpll_hw_state
.dpll_md
);
1568 POSTING_READ(DPLL_MD(crtc
->pipe
));
1570 /* We do this three times for luck */
1571 I915_WRITE(reg
, dpll
);
1573 udelay(150); /* wait for warmup */
1574 I915_WRITE(reg
, dpll
);
1576 udelay(150); /* wait for warmup */
1577 I915_WRITE(reg
, dpll
);
1579 udelay(150); /* wait for warmup */
1582 static void chv_enable_pll(struct intel_crtc
*crtc
)
1584 struct drm_device
*dev
= crtc
->base
.dev
;
1585 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1586 int pipe
= crtc
->pipe
;
1587 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
1590 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1592 BUG_ON(!IS_CHERRYVIEW(dev_priv
->dev
));
1594 mutex_lock(&dev_priv
->dpio_lock
);
1596 /* Enable back the 10bit clock to display controller */
1597 tmp
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
));
1598 tmp
|= DPIO_DCLKP_EN
;
1599 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
), tmp
);
1602 * Need to wait > 100ns between dclkp clock enable bit and PLL enable.
1607 I915_WRITE(DPLL(pipe
), crtc
->config
.dpll_hw_state
.dpll
);
1609 /* Check PLL is locked */
1610 if (wait_for(((I915_READ(DPLL(pipe
)) & DPLL_LOCK_VLV
) == DPLL_LOCK_VLV
), 1))
1611 DRM_ERROR("PLL %d failed to lock\n", pipe
);
1613 /* not sure when this should be written */
1614 I915_WRITE(DPLL_MD(pipe
), crtc
->config
.dpll_hw_state
.dpll_md
);
1615 POSTING_READ(DPLL_MD(pipe
));
1617 mutex_unlock(&dev_priv
->dpio_lock
);
1620 static void i9xx_enable_pll(struct intel_crtc
*crtc
)
1622 struct drm_device
*dev
= crtc
->base
.dev
;
1623 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1624 int reg
= DPLL(crtc
->pipe
);
1625 u32 dpll
= crtc
->config
.dpll_hw_state
.dpll
;
1627 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1629 /* No really, not for ILK+ */
1630 BUG_ON(INTEL_INFO(dev
)->gen
>= 5);
1632 /* PLL is protected by panel, make sure we can write it */
1633 if (IS_MOBILE(dev
) && !IS_I830(dev
))
1634 assert_panel_unlocked(dev_priv
, crtc
->pipe
);
1636 I915_WRITE(reg
, dpll
);
1638 /* Wait for the clocks to stabilize. */
1642 if (INTEL_INFO(dev
)->gen
>= 4) {
1643 I915_WRITE(DPLL_MD(crtc
->pipe
),
1644 crtc
->config
.dpll_hw_state
.dpll_md
);
1646 /* The pixel multiplier can only be updated once the
1647 * DPLL is enabled and the clocks are stable.
1649 * So write it again.
1651 I915_WRITE(reg
, dpll
);
1654 /* We do this three times for luck */
1655 I915_WRITE(reg
, dpll
);
1657 udelay(150); /* wait for warmup */
1658 I915_WRITE(reg
, dpll
);
1660 udelay(150); /* wait for warmup */
1661 I915_WRITE(reg
, dpll
);
1663 udelay(150); /* wait for warmup */
1667 * i9xx_disable_pll - disable a PLL
1668 * @dev_priv: i915 private structure
1669 * @pipe: pipe PLL to disable
1671 * Disable the PLL for @pipe, making sure the pipe is off first.
1673 * Note! This is for pre-ILK only.
1675 static void i9xx_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1677 /* Don't disable pipe A or pipe A PLLs if needed */
1678 if (pipe
== PIPE_A
&& (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
))
1681 /* Make sure the pipe isn't still relying on us */
1682 assert_pipe_disabled(dev_priv
, pipe
);
1684 I915_WRITE(DPLL(pipe
), 0);
1685 POSTING_READ(DPLL(pipe
));
1688 static void vlv_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1692 /* Make sure the pipe isn't still relying on us */
1693 assert_pipe_disabled(dev_priv
, pipe
);
1696 * Leave integrated clock source and reference clock enabled for pipe B.
1697 * The latter is needed for VGA hotplug / manual detection.
1700 val
= DPLL_INTEGRATED_CRI_CLK_VLV
| DPLL_REFA_CLK_ENABLE_VLV
;
1701 I915_WRITE(DPLL(pipe
), val
);
1702 POSTING_READ(DPLL(pipe
));
1706 static void chv_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1708 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
1711 /* Make sure the pipe isn't still relying on us */
1712 assert_pipe_disabled(dev_priv
, pipe
);
1714 /* Set PLL en = 0 */
1715 val
= DPLL_SSC_REF_CLOCK_CHV
;
1717 val
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
1718 I915_WRITE(DPLL(pipe
), val
);
1719 POSTING_READ(DPLL(pipe
));
1721 mutex_lock(&dev_priv
->dpio_lock
);
1723 /* Disable 10bit clock to display controller */
1724 val
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
));
1725 val
&= ~DPIO_DCLKP_EN
;
1726 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
), val
);
1728 /* disable left/right clock distribution */
1729 if (pipe
!= PIPE_B
) {
1730 val
= vlv_dpio_read(dev_priv
, pipe
, _CHV_CMN_DW5_CH0
);
1731 val
&= ~(CHV_BUFLEFTENA1_MASK
| CHV_BUFRIGHTENA1_MASK
);
1732 vlv_dpio_write(dev_priv
, pipe
, _CHV_CMN_DW5_CH0
, val
);
1734 val
= vlv_dpio_read(dev_priv
, pipe
, _CHV_CMN_DW1_CH1
);
1735 val
&= ~(CHV_BUFLEFTENA2_MASK
| CHV_BUFRIGHTENA2_MASK
);
1736 vlv_dpio_write(dev_priv
, pipe
, _CHV_CMN_DW1_CH1
, val
);
1739 mutex_unlock(&dev_priv
->dpio_lock
);
1742 void vlv_wait_port_ready(struct drm_i915_private
*dev_priv
,
1743 struct intel_digital_port
*dport
)
1748 switch (dport
->port
) {
1750 port_mask
= DPLL_PORTB_READY_MASK
;
1754 port_mask
= DPLL_PORTC_READY_MASK
;
1758 port_mask
= DPLL_PORTD_READY_MASK
;
1759 dpll_reg
= DPIO_PHY_STATUS
;
1765 if (wait_for((I915_READ(dpll_reg
) & port_mask
) == 0, 1000))
1766 WARN(1, "timed out waiting for port %c ready: 0x%08x\n",
1767 port_name(dport
->port
), I915_READ(dpll_reg
));
1770 static void intel_prepare_shared_dpll(struct intel_crtc
*crtc
)
1772 struct drm_device
*dev
= crtc
->base
.dev
;
1773 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1774 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
1776 if (WARN_ON(pll
== NULL
))
1779 WARN_ON(!pll
->refcount
);
1780 if (pll
->active
== 0) {
1781 DRM_DEBUG_DRIVER("setting up %s\n", pll
->name
);
1783 assert_shared_dpll_disabled(dev_priv
, pll
);
1785 pll
->mode_set(dev_priv
, pll
);
1790 * intel_enable_shared_dpll - enable PCH PLL
1791 * @dev_priv: i915 private structure
1792 * @pipe: pipe PLL to enable
1794 * The PCH PLL needs to be enabled before the PCH transcoder, since it
1795 * drives the transcoder clock.
1797 static void intel_enable_shared_dpll(struct intel_crtc
*crtc
)
1799 struct drm_device
*dev
= crtc
->base
.dev
;
1800 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1801 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
1803 if (WARN_ON(pll
== NULL
))
1806 if (WARN_ON(pll
->refcount
== 0))
1809 DRM_DEBUG_KMS("enable %s (active %d, on? %d)for crtc %d\n",
1810 pll
->name
, pll
->active
, pll
->on
,
1811 crtc
->base
.base
.id
);
1813 if (pll
->active
++) {
1815 assert_shared_dpll_enabled(dev_priv
, pll
);
1820 intel_display_power_get(dev_priv
, POWER_DOMAIN_PLLS
);
1822 DRM_DEBUG_KMS("enabling %s\n", pll
->name
);
1823 pll
->enable(dev_priv
, pll
);
1827 void intel_disable_shared_dpll(struct intel_crtc
*crtc
)
1829 struct drm_device
*dev
= crtc
->base
.dev
;
1830 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1831 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
1833 /* PCH only available on ILK+ */
1834 BUG_ON(INTEL_INFO(dev
)->gen
< 5);
1835 if (WARN_ON(pll
== NULL
))
1838 if (WARN_ON(pll
->refcount
== 0))
1841 DRM_DEBUG_KMS("disable %s (active %d, on? %d) for crtc %d\n",
1842 pll
->name
, pll
->active
, pll
->on
,
1843 crtc
->base
.base
.id
);
1845 if (WARN_ON(pll
->active
== 0)) {
1846 assert_shared_dpll_disabled(dev_priv
, pll
);
1850 assert_shared_dpll_enabled(dev_priv
, pll
);
1855 DRM_DEBUG_KMS("disabling %s\n", pll
->name
);
1856 pll
->disable(dev_priv
, pll
);
1859 intel_display_power_put(dev_priv
, POWER_DOMAIN_PLLS
);
1862 static void ironlake_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1865 struct drm_device
*dev
= dev_priv
->dev
;
1866 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
1867 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
1868 uint32_t reg
, val
, pipeconf_val
;
1870 /* PCH only available on ILK+ */
1871 BUG_ON(INTEL_INFO(dev
)->gen
< 5);
1873 /* Make sure PCH DPLL is enabled */
1874 assert_shared_dpll_enabled(dev_priv
,
1875 intel_crtc_to_shared_dpll(intel_crtc
));
1877 /* FDI must be feeding us bits for PCH ports */
1878 assert_fdi_tx_enabled(dev_priv
, pipe
);
1879 assert_fdi_rx_enabled(dev_priv
, pipe
);
1881 if (HAS_PCH_CPT(dev
)) {
1882 /* Workaround: Set the timing override bit before enabling the
1883 * pch transcoder. */
1884 reg
= TRANS_CHICKEN2(pipe
);
1885 val
= I915_READ(reg
);
1886 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
1887 I915_WRITE(reg
, val
);
1890 reg
= PCH_TRANSCONF(pipe
);
1891 val
= I915_READ(reg
);
1892 pipeconf_val
= I915_READ(PIPECONF(pipe
));
1894 if (HAS_PCH_IBX(dev_priv
->dev
)) {
1896 * make the BPC in transcoder be consistent with
1897 * that in pipeconf reg.
1899 val
&= ~PIPECONF_BPC_MASK
;
1900 val
|= pipeconf_val
& PIPECONF_BPC_MASK
;
1903 val
&= ~TRANS_INTERLACE_MASK
;
1904 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK
) == PIPECONF_INTERLACED_ILK
)
1905 if (HAS_PCH_IBX(dev_priv
->dev
) &&
1906 intel_pipe_has_type(crtc
, INTEL_OUTPUT_SDVO
))
1907 val
|= TRANS_LEGACY_INTERLACED_ILK
;
1909 val
|= TRANS_INTERLACED
;
1911 val
|= TRANS_PROGRESSIVE
;
1913 I915_WRITE(reg
, val
| TRANS_ENABLE
);
1914 if (wait_for(I915_READ(reg
) & TRANS_STATE_ENABLE
, 100))
1915 DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe
));
1918 static void lpt_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1919 enum transcoder cpu_transcoder
)
1921 u32 val
, pipeconf_val
;
1923 /* PCH only available on ILK+ */
1924 BUG_ON(INTEL_INFO(dev_priv
->dev
)->gen
< 5);
1926 /* FDI must be feeding us bits for PCH ports */
1927 assert_fdi_tx_enabled(dev_priv
, (enum pipe
) cpu_transcoder
);
1928 assert_fdi_rx_enabled(dev_priv
, TRANSCODER_A
);
1930 /* Workaround: set timing override bit. */
1931 val
= I915_READ(_TRANSA_CHICKEN2
);
1932 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
1933 I915_WRITE(_TRANSA_CHICKEN2
, val
);
1936 pipeconf_val
= I915_READ(PIPECONF(cpu_transcoder
));
1938 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK_HSW
) ==
1939 PIPECONF_INTERLACED_ILK
)
1940 val
|= TRANS_INTERLACED
;
1942 val
|= TRANS_PROGRESSIVE
;
1944 I915_WRITE(LPT_TRANSCONF
, val
);
1945 if (wait_for(I915_READ(LPT_TRANSCONF
) & TRANS_STATE_ENABLE
, 100))
1946 DRM_ERROR("Failed to enable PCH transcoder\n");
1949 static void ironlake_disable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1952 struct drm_device
*dev
= dev_priv
->dev
;
1955 /* FDI relies on the transcoder */
1956 assert_fdi_tx_disabled(dev_priv
, pipe
);
1957 assert_fdi_rx_disabled(dev_priv
, pipe
);
1959 /* Ports must be off as well */
1960 assert_pch_ports_disabled(dev_priv
, pipe
);
1962 reg
= PCH_TRANSCONF(pipe
);
1963 val
= I915_READ(reg
);
1964 val
&= ~TRANS_ENABLE
;
1965 I915_WRITE(reg
, val
);
1966 /* wait for PCH transcoder off, transcoder state */
1967 if (wait_for((I915_READ(reg
) & TRANS_STATE_ENABLE
) == 0, 50))
1968 DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe
));
1970 if (!HAS_PCH_IBX(dev
)) {
1971 /* Workaround: Clear the timing override chicken bit again. */
1972 reg
= TRANS_CHICKEN2(pipe
);
1973 val
= I915_READ(reg
);
1974 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
1975 I915_WRITE(reg
, val
);
1979 static void lpt_disable_pch_transcoder(struct drm_i915_private
*dev_priv
)
1983 val
= I915_READ(LPT_TRANSCONF
);
1984 val
&= ~TRANS_ENABLE
;
1985 I915_WRITE(LPT_TRANSCONF
, val
);
1986 /* wait for PCH transcoder off, transcoder state */
1987 if (wait_for((I915_READ(LPT_TRANSCONF
) & TRANS_STATE_ENABLE
) == 0, 50))
1988 DRM_ERROR("Failed to disable PCH transcoder\n");
1990 /* Workaround: clear timing override bit. */
1991 val
= I915_READ(_TRANSA_CHICKEN2
);
1992 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
1993 I915_WRITE(_TRANSA_CHICKEN2
, val
);
1997 * intel_enable_pipe - enable a pipe, asserting requirements
1998 * @crtc: crtc responsible for the pipe
2000 * Enable @crtc's pipe, making sure that various hardware specific requirements
2001 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
2003 static void intel_enable_pipe(struct intel_crtc
*crtc
)
2005 struct drm_device
*dev
= crtc
->base
.dev
;
2006 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2007 enum pipe pipe
= crtc
->pipe
;
2008 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
2010 enum pipe pch_transcoder
;
2014 assert_planes_disabled(dev_priv
, pipe
);
2015 assert_cursor_disabled(dev_priv
, pipe
);
2016 assert_sprites_disabled(dev_priv
, pipe
);
2018 if (HAS_PCH_LPT(dev_priv
->dev
))
2019 pch_transcoder
= TRANSCODER_A
;
2021 pch_transcoder
= pipe
;
2024 * A pipe without a PLL won't actually be able to drive bits from
2025 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
2028 if (!HAS_PCH_SPLIT(dev_priv
->dev
))
2029 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DSI
))
2030 assert_dsi_pll_enabled(dev_priv
);
2032 assert_pll_enabled(dev_priv
, pipe
);
2034 if (crtc
->config
.has_pch_encoder
) {
2035 /* if driving the PCH, we need FDI enabled */
2036 assert_fdi_rx_pll_enabled(dev_priv
, pch_transcoder
);
2037 assert_fdi_tx_pll_enabled(dev_priv
,
2038 (enum pipe
) cpu_transcoder
);
2040 /* FIXME: assert CPU port conditions for SNB+ */
2043 reg
= PIPECONF(cpu_transcoder
);
2044 val
= I915_READ(reg
);
2045 if (val
& PIPECONF_ENABLE
) {
2046 WARN_ON(!(pipe
== PIPE_A
&&
2047 dev_priv
->quirks
& QUIRK_PIPEA_FORCE
));
2051 I915_WRITE(reg
, val
| PIPECONF_ENABLE
);
2056 * intel_disable_pipe - disable a pipe, asserting requirements
2057 * @dev_priv: i915 private structure
2058 * @pipe: pipe to disable
2060 * Disable @pipe, making sure that various hardware specific requirements
2061 * are met, if applicable, e.g. plane disabled, panel fitter off, etc.
2063 * @pipe should be %PIPE_A or %PIPE_B.
2065 * Will wait until the pipe has shut down before returning.
2067 static void intel_disable_pipe(struct drm_i915_private
*dev_priv
,
2070 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
2076 * Make sure planes won't keep trying to pump pixels to us,
2077 * or we might hang the display.
2079 assert_planes_disabled(dev_priv
, pipe
);
2080 assert_cursor_disabled(dev_priv
, pipe
);
2081 assert_sprites_disabled(dev_priv
, pipe
);
2083 /* Don't disable pipe A or pipe A PLLs if needed */
2084 if (pipe
== PIPE_A
&& (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
))
2087 reg
= PIPECONF(cpu_transcoder
);
2088 val
= I915_READ(reg
);
2089 if ((val
& PIPECONF_ENABLE
) == 0)
2092 I915_WRITE(reg
, val
& ~PIPECONF_ENABLE
);
2093 intel_wait_for_pipe_off(dev_priv
->dev
, pipe
);
2097 * Plane regs are double buffered, going from enabled->disabled needs a
2098 * trigger in order to latch. The display address reg provides this.
2100 void intel_flush_primary_plane(struct drm_i915_private
*dev_priv
,
2103 struct drm_device
*dev
= dev_priv
->dev
;
2104 u32 reg
= INTEL_INFO(dev
)->gen
>= 4 ? DSPSURF(plane
) : DSPADDR(plane
);
2106 I915_WRITE(reg
, I915_READ(reg
));
2111 * intel_enable_primary_hw_plane - enable the primary plane on a given pipe
2112 * @dev_priv: i915 private structure
2113 * @plane: plane to enable
2114 * @pipe: pipe being fed
2116 * Enable @plane on @pipe, making sure that @pipe is running first.
2118 static void intel_enable_primary_hw_plane(struct drm_i915_private
*dev_priv
,
2119 enum plane plane
, enum pipe pipe
)
2121 struct drm_device
*dev
= dev_priv
->dev
;
2122 struct intel_crtc
*intel_crtc
=
2123 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
2127 /* If the pipe isn't enabled, we can't pump pixels and may hang */
2128 assert_pipe_enabled(dev_priv
, pipe
);
2130 if (intel_crtc
->primary_enabled
)
2133 intel_crtc
->primary_enabled
= true;
2135 reg
= DSPCNTR(plane
);
2136 val
= I915_READ(reg
);
2137 WARN_ON(val
& DISPLAY_PLANE_ENABLE
);
2139 I915_WRITE(reg
, val
| DISPLAY_PLANE_ENABLE
);
2140 intel_flush_primary_plane(dev_priv
, plane
);
2143 * BDW signals flip done immediately if the plane
2144 * is disabled, even if the plane enable is already
2145 * armed to occur at the next vblank :(
2147 if (IS_BROADWELL(dev
))
2148 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
2152 * intel_disable_primary_hw_plane - disable the primary hardware plane
2153 * @dev_priv: i915 private structure
2154 * @plane: plane to disable
2155 * @pipe: pipe consuming the data
2157 * Disable @plane; should be an independent operation.
2159 static void intel_disable_primary_hw_plane(struct drm_i915_private
*dev_priv
,
2160 enum plane plane
, enum pipe pipe
)
2162 struct intel_crtc
*intel_crtc
=
2163 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
2167 if (!intel_crtc
->primary_enabled
)
2170 intel_crtc
->primary_enabled
= false;
2172 reg
= DSPCNTR(plane
);
2173 val
= I915_READ(reg
);
2174 WARN_ON((val
& DISPLAY_PLANE_ENABLE
) == 0);
2176 I915_WRITE(reg
, val
& ~DISPLAY_PLANE_ENABLE
);
2177 intel_flush_primary_plane(dev_priv
, plane
);
2180 static bool need_vtd_wa(struct drm_device
*dev
)
2182 #ifdef CONFIG_INTEL_IOMMU
2183 if (INTEL_INFO(dev
)->gen
>= 6 && intel_iommu_gfx_mapped
)
2189 static int intel_align_height(struct drm_device
*dev
, int height
, bool tiled
)
2193 tile_height
= tiled
? (IS_GEN2(dev
) ? 16 : 8) : 1;
2194 return ALIGN(height
, tile_height
);
2198 intel_pin_and_fence_fb_obj(struct drm_device
*dev
,
2199 struct drm_i915_gem_object
*obj
,
2200 struct intel_engine_cs
*pipelined
)
2202 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2206 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
2208 switch (obj
->tiling_mode
) {
2209 case I915_TILING_NONE
:
2210 if (IS_BROADWATER(dev
) || IS_CRESTLINE(dev
))
2211 alignment
= 128 * 1024;
2212 else if (INTEL_INFO(dev
)->gen
>= 4)
2213 alignment
= 4 * 1024;
2215 alignment
= 64 * 1024;
2218 /* pin() will align the object as required by fence */
2222 WARN(1, "Y tiled bo slipped through, driver bug!\n");
2228 /* Note that the w/a also requires 64 PTE of padding following the
2229 * bo. We currently fill all unused PTE with the shadow page and so
2230 * we should always have valid PTE following the scanout preventing
2233 if (need_vtd_wa(dev
) && alignment
< 256 * 1024)
2234 alignment
= 256 * 1024;
2236 dev_priv
->mm
.interruptible
= false;
2237 ret
= i915_gem_object_pin_to_display_plane(obj
, alignment
, pipelined
);
2239 goto err_interruptible
;
2241 /* Install a fence for tiled scan-out. Pre-i965 always needs a
2242 * fence, whereas 965+ only requires a fence if using
2243 * framebuffer compression. For simplicity, we always install
2244 * a fence as the cost is not that onerous.
2246 ret
= i915_gem_object_get_fence(obj
);
2250 i915_gem_object_pin_fence(obj
);
2252 dev_priv
->mm
.interruptible
= true;
2256 i915_gem_object_unpin_from_display_plane(obj
);
2258 dev_priv
->mm
.interruptible
= true;
2262 void intel_unpin_fb_obj(struct drm_i915_gem_object
*obj
)
2264 WARN_ON(!mutex_is_locked(&obj
->base
.dev
->struct_mutex
));
2266 i915_gem_object_unpin_fence(obj
);
2267 i915_gem_object_unpin_from_display_plane(obj
);
2270 /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel
2271 * is assumed to be a power-of-two. */
2272 unsigned long intel_gen4_compute_page_offset(int *x
, int *y
,
2273 unsigned int tiling_mode
,
2277 if (tiling_mode
!= I915_TILING_NONE
) {
2278 unsigned int tile_rows
, tiles
;
2283 tiles
= *x
/ (512/cpp
);
2286 return tile_rows
* pitch
* 8 + tiles
* 4096;
2288 unsigned int offset
;
2290 offset
= *y
* pitch
+ *x
* cpp
;
2292 *x
= (offset
& 4095) / cpp
;
2293 return offset
& -4096;
2297 int intel_format_to_fourcc(int format
)
2300 case DISPPLANE_8BPP
:
2301 return DRM_FORMAT_C8
;
2302 case DISPPLANE_BGRX555
:
2303 return DRM_FORMAT_XRGB1555
;
2304 case DISPPLANE_BGRX565
:
2305 return DRM_FORMAT_RGB565
;
2307 case DISPPLANE_BGRX888
:
2308 return DRM_FORMAT_XRGB8888
;
2309 case DISPPLANE_RGBX888
:
2310 return DRM_FORMAT_XBGR8888
;
2311 case DISPPLANE_BGRX101010
:
2312 return DRM_FORMAT_XRGB2101010
;
2313 case DISPPLANE_RGBX101010
:
2314 return DRM_FORMAT_XBGR2101010
;
2318 static bool intel_alloc_plane_obj(struct intel_crtc
*crtc
,
2319 struct intel_plane_config
*plane_config
)
2321 struct drm_device
*dev
= crtc
->base
.dev
;
2322 struct drm_i915_gem_object
*obj
= NULL
;
2323 struct drm_mode_fb_cmd2 mode_cmd
= { 0 };
2324 u32 base
= plane_config
->base
;
2326 if (plane_config
->size
== 0)
2329 obj
= i915_gem_object_create_stolen_for_preallocated(dev
, base
, base
,
2330 plane_config
->size
);
2334 if (plane_config
->tiled
) {
2335 obj
->tiling_mode
= I915_TILING_X
;
2336 obj
->stride
= crtc
->base
.primary
->fb
->pitches
[0];
2339 mode_cmd
.pixel_format
= crtc
->base
.primary
->fb
->pixel_format
;
2340 mode_cmd
.width
= crtc
->base
.primary
->fb
->width
;
2341 mode_cmd
.height
= crtc
->base
.primary
->fb
->height
;
2342 mode_cmd
.pitches
[0] = crtc
->base
.primary
->fb
->pitches
[0];
2344 mutex_lock(&dev
->struct_mutex
);
2346 if (intel_framebuffer_init(dev
, to_intel_framebuffer(crtc
->base
.primary
->fb
),
2348 DRM_DEBUG_KMS("intel fb init failed\n");
2352 obj
->frontbuffer_bits
= INTEL_FRONTBUFFER_PRIMARY(crtc
->pipe
);
2353 mutex_unlock(&dev
->struct_mutex
);
2355 DRM_DEBUG_KMS("plane fb obj %p\n", obj
);
2359 drm_gem_object_unreference(&obj
->base
);
2360 mutex_unlock(&dev
->struct_mutex
);
2364 static void intel_find_plane_obj(struct intel_crtc
*intel_crtc
,
2365 struct intel_plane_config
*plane_config
)
2367 struct drm_device
*dev
= intel_crtc
->base
.dev
;
2369 struct intel_crtc
*i
;
2370 struct drm_i915_gem_object
*obj
;
2372 if (!intel_crtc
->base
.primary
->fb
)
2375 if (intel_alloc_plane_obj(intel_crtc
, plane_config
))
2378 kfree(intel_crtc
->base
.primary
->fb
);
2379 intel_crtc
->base
.primary
->fb
= NULL
;
2382 * Failed to alloc the obj, check to see if we should share
2383 * an fb with another CRTC instead
2385 for_each_crtc(dev
, c
) {
2386 i
= to_intel_crtc(c
);
2388 if (c
== &intel_crtc
->base
)
2394 obj
= intel_fb_obj(c
->primary
->fb
);
2398 if (i915_gem_obj_ggtt_offset(obj
) == plane_config
->base
) {
2399 drm_framebuffer_reference(c
->primary
->fb
);
2400 intel_crtc
->base
.primary
->fb
= c
->primary
->fb
;
2401 obj
->frontbuffer_bits
|= INTEL_FRONTBUFFER_PRIMARY(intel_crtc
->pipe
);
2407 static void i9xx_update_primary_plane(struct drm_crtc
*crtc
,
2408 struct drm_framebuffer
*fb
,
2411 struct drm_device
*dev
= crtc
->dev
;
2412 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2413 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2414 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
2415 int plane
= intel_crtc
->plane
;
2416 unsigned long linear_offset
;
2420 reg
= DSPCNTR(plane
);
2421 dspcntr
= I915_READ(reg
);
2422 /* Mask out pixel format bits in case we change it */
2423 dspcntr
&= ~DISPPLANE_PIXFORMAT_MASK
;
2424 switch (fb
->pixel_format
) {
2426 dspcntr
|= DISPPLANE_8BPP
;
2428 case DRM_FORMAT_XRGB1555
:
2429 case DRM_FORMAT_ARGB1555
:
2430 dspcntr
|= DISPPLANE_BGRX555
;
2432 case DRM_FORMAT_RGB565
:
2433 dspcntr
|= DISPPLANE_BGRX565
;
2435 case DRM_FORMAT_XRGB8888
:
2436 case DRM_FORMAT_ARGB8888
:
2437 dspcntr
|= DISPPLANE_BGRX888
;
2439 case DRM_FORMAT_XBGR8888
:
2440 case DRM_FORMAT_ABGR8888
:
2441 dspcntr
|= DISPPLANE_RGBX888
;
2443 case DRM_FORMAT_XRGB2101010
:
2444 case DRM_FORMAT_ARGB2101010
:
2445 dspcntr
|= DISPPLANE_BGRX101010
;
2447 case DRM_FORMAT_XBGR2101010
:
2448 case DRM_FORMAT_ABGR2101010
:
2449 dspcntr
|= DISPPLANE_RGBX101010
;
2455 if (INTEL_INFO(dev
)->gen
>= 4) {
2456 if (obj
->tiling_mode
!= I915_TILING_NONE
)
2457 dspcntr
|= DISPPLANE_TILED
;
2459 dspcntr
&= ~DISPPLANE_TILED
;
2463 dspcntr
|= DISPPLANE_TRICKLE_FEED_DISABLE
;
2465 I915_WRITE(reg
, dspcntr
);
2467 linear_offset
= y
* fb
->pitches
[0] + x
* (fb
->bits_per_pixel
/ 8);
2469 if (INTEL_INFO(dev
)->gen
>= 4) {
2470 intel_crtc
->dspaddr_offset
=
2471 intel_gen4_compute_page_offset(&x
, &y
, obj
->tiling_mode
,
2472 fb
->bits_per_pixel
/ 8,
2474 linear_offset
-= intel_crtc
->dspaddr_offset
;
2476 intel_crtc
->dspaddr_offset
= linear_offset
;
2479 DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
2480 i915_gem_obj_ggtt_offset(obj
), linear_offset
, x
, y
,
2482 I915_WRITE(DSPSTRIDE(plane
), fb
->pitches
[0]);
2483 if (INTEL_INFO(dev
)->gen
>= 4) {
2484 I915_WRITE(DSPSURF(plane
),
2485 i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
);
2486 I915_WRITE(DSPTILEOFF(plane
), (y
<< 16) | x
);
2487 I915_WRITE(DSPLINOFF(plane
), linear_offset
);
2489 I915_WRITE(DSPADDR(plane
), i915_gem_obj_ggtt_offset(obj
) + linear_offset
);
2493 static void ironlake_update_primary_plane(struct drm_crtc
*crtc
,
2494 struct drm_framebuffer
*fb
,
2497 struct drm_device
*dev
= crtc
->dev
;
2498 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2499 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2500 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
2501 int plane
= intel_crtc
->plane
;
2502 unsigned long linear_offset
;
2506 reg
= DSPCNTR(plane
);
2507 dspcntr
= I915_READ(reg
);
2508 /* Mask out pixel format bits in case we change it */
2509 dspcntr
&= ~DISPPLANE_PIXFORMAT_MASK
;
2510 switch (fb
->pixel_format
) {
2512 dspcntr
|= DISPPLANE_8BPP
;
2514 case DRM_FORMAT_RGB565
:
2515 dspcntr
|= DISPPLANE_BGRX565
;
2517 case DRM_FORMAT_XRGB8888
:
2518 case DRM_FORMAT_ARGB8888
:
2519 dspcntr
|= DISPPLANE_BGRX888
;
2521 case DRM_FORMAT_XBGR8888
:
2522 case DRM_FORMAT_ABGR8888
:
2523 dspcntr
|= DISPPLANE_RGBX888
;
2525 case DRM_FORMAT_XRGB2101010
:
2526 case DRM_FORMAT_ARGB2101010
:
2527 dspcntr
|= DISPPLANE_BGRX101010
;
2529 case DRM_FORMAT_XBGR2101010
:
2530 case DRM_FORMAT_ABGR2101010
:
2531 dspcntr
|= DISPPLANE_RGBX101010
;
2537 if (obj
->tiling_mode
!= I915_TILING_NONE
)
2538 dspcntr
|= DISPPLANE_TILED
;
2540 dspcntr
&= ~DISPPLANE_TILED
;
2542 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
2543 dspcntr
&= ~DISPPLANE_TRICKLE_FEED_DISABLE
;
2545 dspcntr
|= DISPPLANE_TRICKLE_FEED_DISABLE
;
2547 I915_WRITE(reg
, dspcntr
);
2549 linear_offset
= y
* fb
->pitches
[0] + x
* (fb
->bits_per_pixel
/ 8);
2550 intel_crtc
->dspaddr_offset
=
2551 intel_gen4_compute_page_offset(&x
, &y
, obj
->tiling_mode
,
2552 fb
->bits_per_pixel
/ 8,
2554 linear_offset
-= intel_crtc
->dspaddr_offset
;
2556 DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
2557 i915_gem_obj_ggtt_offset(obj
), linear_offset
, x
, y
,
2559 I915_WRITE(DSPSTRIDE(plane
), fb
->pitches
[0]);
2560 I915_WRITE(DSPSURF(plane
),
2561 i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
);
2562 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
2563 I915_WRITE(DSPOFFSET(plane
), (y
<< 16) | x
);
2565 I915_WRITE(DSPTILEOFF(plane
), (y
<< 16) | x
);
2566 I915_WRITE(DSPLINOFF(plane
), linear_offset
);
2571 /* Assume fb object is pinned & idle & fenced and just update base pointers */
2573 intel_pipe_set_base_atomic(struct drm_crtc
*crtc
, struct drm_framebuffer
*fb
,
2574 int x
, int y
, enum mode_set_atomic state
)
2576 struct drm_device
*dev
= crtc
->dev
;
2577 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2579 if (dev_priv
->display
.disable_fbc
)
2580 dev_priv
->display
.disable_fbc(dev
);
2581 intel_increase_pllclock(dev
, to_intel_crtc(crtc
)->pipe
);
2583 dev_priv
->display
.update_primary_plane(crtc
, fb
, x
, y
);
2588 void intel_display_handle_reset(struct drm_device
*dev
)
2590 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2591 struct drm_crtc
*crtc
;
2594 * Flips in the rings have been nuked by the reset,
2595 * so complete all pending flips so that user space
2596 * will get its events and not get stuck.
2598 * Also update the base address of all primary
2599 * planes to the the last fb to make sure we're
2600 * showing the correct fb after a reset.
2602 * Need to make two loops over the crtcs so that we
2603 * don't try to grab a crtc mutex before the
2604 * pending_flip_queue really got woken up.
2607 for_each_crtc(dev
, crtc
) {
2608 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2609 enum plane plane
= intel_crtc
->plane
;
2611 intel_prepare_page_flip(dev
, plane
);
2612 intel_finish_page_flip_plane(dev
, plane
);
2615 for_each_crtc(dev
, crtc
) {
2616 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2618 drm_modeset_lock(&crtc
->mutex
, NULL
);
2620 * FIXME: Once we have proper support for primary planes (and
2621 * disabling them without disabling the entire crtc) allow again
2622 * a NULL crtc->primary->fb.
2624 if (intel_crtc
->active
&& crtc
->primary
->fb
)
2625 dev_priv
->display
.update_primary_plane(crtc
,
2629 drm_modeset_unlock(&crtc
->mutex
);
2634 intel_finish_fb(struct drm_framebuffer
*old_fb
)
2636 struct drm_i915_gem_object
*obj
= intel_fb_obj(old_fb
);
2637 struct drm_i915_private
*dev_priv
= obj
->base
.dev
->dev_private
;
2638 bool was_interruptible
= dev_priv
->mm
.interruptible
;
2641 /* Big Hammer, we also need to ensure that any pending
2642 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
2643 * current scanout is retired before unpinning the old
2646 * This should only fail upon a hung GPU, in which case we
2647 * can safely continue.
2649 dev_priv
->mm
.interruptible
= false;
2650 ret
= i915_gem_object_finish_gpu(obj
);
2651 dev_priv
->mm
.interruptible
= was_interruptible
;
2656 static bool intel_crtc_has_pending_flip(struct drm_crtc
*crtc
)
2658 struct drm_device
*dev
= crtc
->dev
;
2659 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2660 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2661 unsigned long flags
;
2664 if (i915_reset_in_progress(&dev_priv
->gpu_error
) ||
2665 intel_crtc
->reset_counter
!= atomic_read(&dev_priv
->gpu_error
.reset_counter
))
2668 spin_lock_irqsave(&dev
->event_lock
, flags
);
2669 pending
= to_intel_crtc(crtc
)->unpin_work
!= NULL
;
2670 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
2676 intel_pipe_set_base(struct drm_crtc
*crtc
, int x
, int y
,
2677 struct drm_framebuffer
*fb
)
2679 struct drm_device
*dev
= crtc
->dev
;
2680 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2681 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2682 enum pipe pipe
= intel_crtc
->pipe
;
2683 struct drm_framebuffer
*old_fb
= crtc
->primary
->fb
;
2684 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
2685 struct drm_i915_gem_object
*old_obj
= intel_fb_obj(old_fb
);
2688 if (intel_crtc_has_pending_flip(crtc
)) {
2689 DRM_ERROR("pipe is still busy with an old pageflip\n");
2695 DRM_ERROR("No FB bound\n");
2699 if (intel_crtc
->plane
> INTEL_INFO(dev
)->num_pipes
) {
2700 DRM_ERROR("no plane for crtc: plane %c, num_pipes %d\n",
2701 plane_name(intel_crtc
->plane
),
2702 INTEL_INFO(dev
)->num_pipes
);
2706 mutex_lock(&dev
->struct_mutex
);
2707 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, NULL
);
2709 i915_gem_track_fb(old_obj
, obj
,
2710 INTEL_FRONTBUFFER_PRIMARY(pipe
));
2711 mutex_unlock(&dev
->struct_mutex
);
2713 DRM_ERROR("pin & fence failed\n");
2718 * Update pipe size and adjust fitter if needed: the reason for this is
2719 * that in compute_mode_changes we check the native mode (not the pfit
2720 * mode) to see if we can flip rather than do a full mode set. In the
2721 * fastboot case, we'll flip, but if we don't update the pipesrc and
2722 * pfit state, we'll end up with a big fb scanned out into the wrong
2725 * To fix this properly, we need to hoist the checks up into
2726 * compute_mode_changes (or above), check the actual pfit state and
2727 * whether the platform allows pfit disable with pipe active, and only
2728 * then update the pipesrc and pfit state, even on the flip path.
2730 if (i915
.fastboot
) {
2731 const struct drm_display_mode
*adjusted_mode
=
2732 &intel_crtc
->config
.adjusted_mode
;
2734 I915_WRITE(PIPESRC(intel_crtc
->pipe
),
2735 ((adjusted_mode
->crtc_hdisplay
- 1) << 16) |
2736 (adjusted_mode
->crtc_vdisplay
- 1));
2737 if (!intel_crtc
->config
.pch_pfit
.enabled
&&
2738 (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) ||
2739 intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
))) {
2740 I915_WRITE(PF_CTL(intel_crtc
->pipe
), 0);
2741 I915_WRITE(PF_WIN_POS(intel_crtc
->pipe
), 0);
2742 I915_WRITE(PF_WIN_SZ(intel_crtc
->pipe
), 0);
2744 intel_crtc
->config
.pipe_src_w
= adjusted_mode
->crtc_hdisplay
;
2745 intel_crtc
->config
.pipe_src_h
= adjusted_mode
->crtc_vdisplay
;
2748 dev_priv
->display
.update_primary_plane(crtc
, fb
, x
, y
);
2750 if (intel_crtc
->active
)
2751 intel_frontbuffer_flip(dev
, INTEL_FRONTBUFFER_PRIMARY(pipe
));
2753 crtc
->primary
->fb
= fb
;
2758 if (intel_crtc
->active
&& old_fb
!= fb
)
2759 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
2760 mutex_lock(&dev
->struct_mutex
);
2761 intel_unpin_fb_obj(old_obj
);
2762 mutex_unlock(&dev
->struct_mutex
);
2765 mutex_lock(&dev
->struct_mutex
);
2766 intel_update_fbc(dev
);
2767 mutex_unlock(&dev
->struct_mutex
);
2772 static void intel_fdi_normal_train(struct drm_crtc
*crtc
)
2774 struct drm_device
*dev
= crtc
->dev
;
2775 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2776 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2777 int pipe
= intel_crtc
->pipe
;
2780 /* enable normal train */
2781 reg
= FDI_TX_CTL(pipe
);
2782 temp
= I915_READ(reg
);
2783 if (IS_IVYBRIDGE(dev
)) {
2784 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
2785 temp
|= FDI_LINK_TRAIN_NONE_IVB
| FDI_TX_ENHANCE_FRAME_ENABLE
;
2787 temp
&= ~FDI_LINK_TRAIN_NONE
;
2788 temp
|= FDI_LINK_TRAIN_NONE
| FDI_TX_ENHANCE_FRAME_ENABLE
;
2790 I915_WRITE(reg
, temp
);
2792 reg
= FDI_RX_CTL(pipe
);
2793 temp
= I915_READ(reg
);
2794 if (HAS_PCH_CPT(dev
)) {
2795 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2796 temp
|= FDI_LINK_TRAIN_NORMAL_CPT
;
2798 temp
&= ~FDI_LINK_TRAIN_NONE
;
2799 temp
|= FDI_LINK_TRAIN_NONE
;
2801 I915_WRITE(reg
, temp
| FDI_RX_ENHANCE_FRAME_ENABLE
);
2803 /* wait one idle pattern time */
2807 /* IVB wants error correction enabled */
2808 if (IS_IVYBRIDGE(dev
))
2809 I915_WRITE(reg
, I915_READ(reg
) | FDI_FS_ERRC_ENABLE
|
2810 FDI_FE_ERRC_ENABLE
);
2813 static bool pipe_has_enabled_pch(struct intel_crtc
*crtc
)
2815 return crtc
->base
.enabled
&& crtc
->active
&&
2816 crtc
->config
.has_pch_encoder
;
2819 static void ivb_modeset_global_resources(struct drm_device
*dev
)
2821 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2822 struct intel_crtc
*pipe_B_crtc
=
2823 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[PIPE_B
]);
2824 struct intel_crtc
*pipe_C_crtc
=
2825 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[PIPE_C
]);
2829 * When everything is off disable fdi C so that we could enable fdi B
2830 * with all lanes. Note that we don't care about enabled pipes without
2831 * an enabled pch encoder.
2833 if (!pipe_has_enabled_pch(pipe_B_crtc
) &&
2834 !pipe_has_enabled_pch(pipe_C_crtc
)) {
2835 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B
)) & FDI_RX_ENABLE
);
2836 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C
)) & FDI_RX_ENABLE
);
2838 temp
= I915_READ(SOUTH_CHICKEN1
);
2839 temp
&= ~FDI_BC_BIFURCATION_SELECT
;
2840 DRM_DEBUG_KMS("disabling fdi C rx\n");
2841 I915_WRITE(SOUTH_CHICKEN1
, temp
);
2845 /* The FDI link training functions for ILK/Ibexpeak. */
2846 static void ironlake_fdi_link_train(struct drm_crtc
*crtc
)
2848 struct drm_device
*dev
= crtc
->dev
;
2849 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2850 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2851 int pipe
= intel_crtc
->pipe
;
2852 u32 reg
, temp
, tries
;
2854 /* FDI needs bits from pipe first */
2855 assert_pipe_enabled(dev_priv
, pipe
);
2857 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2859 reg
= FDI_RX_IMR(pipe
);
2860 temp
= I915_READ(reg
);
2861 temp
&= ~FDI_RX_SYMBOL_LOCK
;
2862 temp
&= ~FDI_RX_BIT_LOCK
;
2863 I915_WRITE(reg
, temp
);
2867 /* enable CPU FDI TX and PCH FDI RX */
2868 reg
= FDI_TX_CTL(pipe
);
2869 temp
= I915_READ(reg
);
2870 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
2871 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
.fdi_lanes
);
2872 temp
&= ~FDI_LINK_TRAIN_NONE
;
2873 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2874 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
2876 reg
= FDI_RX_CTL(pipe
);
2877 temp
= I915_READ(reg
);
2878 temp
&= ~FDI_LINK_TRAIN_NONE
;
2879 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2880 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
2885 /* Ironlake workaround, enable clock pointer after FDI enable*/
2886 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
2887 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
|
2888 FDI_RX_PHASE_SYNC_POINTER_EN
);
2890 reg
= FDI_RX_IIR(pipe
);
2891 for (tries
= 0; tries
< 5; tries
++) {
2892 temp
= I915_READ(reg
);
2893 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2895 if ((temp
& FDI_RX_BIT_LOCK
)) {
2896 DRM_DEBUG_KMS("FDI train 1 done.\n");
2897 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
2902 DRM_ERROR("FDI train 1 fail!\n");
2905 reg
= FDI_TX_CTL(pipe
);
2906 temp
= I915_READ(reg
);
2907 temp
&= ~FDI_LINK_TRAIN_NONE
;
2908 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2909 I915_WRITE(reg
, temp
);
2911 reg
= FDI_RX_CTL(pipe
);
2912 temp
= I915_READ(reg
);
2913 temp
&= ~FDI_LINK_TRAIN_NONE
;
2914 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2915 I915_WRITE(reg
, temp
);
2920 reg
= FDI_RX_IIR(pipe
);
2921 for (tries
= 0; tries
< 5; tries
++) {
2922 temp
= I915_READ(reg
);
2923 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2925 if (temp
& FDI_RX_SYMBOL_LOCK
) {
2926 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
2927 DRM_DEBUG_KMS("FDI train 2 done.\n");
2932 DRM_ERROR("FDI train 2 fail!\n");
2934 DRM_DEBUG_KMS("FDI train done\n");
2938 static const int snb_b_fdi_train_param
[] = {
2939 FDI_LINK_TRAIN_400MV_0DB_SNB_B
,
2940 FDI_LINK_TRAIN_400MV_6DB_SNB_B
,
2941 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B
,
2942 FDI_LINK_TRAIN_800MV_0DB_SNB_B
,
2945 /* The FDI link training functions for SNB/Cougarpoint. */
2946 static void gen6_fdi_link_train(struct drm_crtc
*crtc
)
2948 struct drm_device
*dev
= crtc
->dev
;
2949 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2950 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2951 int pipe
= intel_crtc
->pipe
;
2952 u32 reg
, temp
, i
, retry
;
2954 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2956 reg
= FDI_RX_IMR(pipe
);
2957 temp
= I915_READ(reg
);
2958 temp
&= ~FDI_RX_SYMBOL_LOCK
;
2959 temp
&= ~FDI_RX_BIT_LOCK
;
2960 I915_WRITE(reg
, temp
);
2965 /* enable CPU FDI TX and PCH FDI RX */
2966 reg
= FDI_TX_CTL(pipe
);
2967 temp
= I915_READ(reg
);
2968 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
2969 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
.fdi_lanes
);
2970 temp
&= ~FDI_LINK_TRAIN_NONE
;
2971 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2972 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2974 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
2975 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
2977 I915_WRITE(FDI_RX_MISC(pipe
),
2978 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
2980 reg
= FDI_RX_CTL(pipe
);
2981 temp
= I915_READ(reg
);
2982 if (HAS_PCH_CPT(dev
)) {
2983 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2984 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
2986 temp
&= ~FDI_LINK_TRAIN_NONE
;
2987 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2989 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
2994 for (i
= 0; i
< 4; i
++) {
2995 reg
= FDI_TX_CTL(pipe
);
2996 temp
= I915_READ(reg
);
2997 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2998 temp
|= snb_b_fdi_train_param
[i
];
2999 I915_WRITE(reg
, temp
);
3004 for (retry
= 0; retry
< 5; retry
++) {
3005 reg
= FDI_RX_IIR(pipe
);
3006 temp
= I915_READ(reg
);
3007 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3008 if (temp
& FDI_RX_BIT_LOCK
) {
3009 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
3010 DRM_DEBUG_KMS("FDI train 1 done.\n");
3019 DRM_ERROR("FDI train 1 fail!\n");
3022 reg
= FDI_TX_CTL(pipe
);
3023 temp
= I915_READ(reg
);
3024 temp
&= ~FDI_LINK_TRAIN_NONE
;
3025 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3027 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3029 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
3031 I915_WRITE(reg
, temp
);
3033 reg
= FDI_RX_CTL(pipe
);
3034 temp
= I915_READ(reg
);
3035 if (HAS_PCH_CPT(dev
)) {
3036 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3037 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
3039 temp
&= ~FDI_LINK_TRAIN_NONE
;
3040 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3042 I915_WRITE(reg
, temp
);
3047 for (i
= 0; i
< 4; i
++) {
3048 reg
= FDI_TX_CTL(pipe
);
3049 temp
= I915_READ(reg
);
3050 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3051 temp
|= snb_b_fdi_train_param
[i
];
3052 I915_WRITE(reg
, temp
);
3057 for (retry
= 0; retry
< 5; retry
++) {
3058 reg
= FDI_RX_IIR(pipe
);
3059 temp
= I915_READ(reg
);
3060 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3061 if (temp
& FDI_RX_SYMBOL_LOCK
) {
3062 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3063 DRM_DEBUG_KMS("FDI train 2 done.\n");
3072 DRM_ERROR("FDI train 2 fail!\n");
3074 DRM_DEBUG_KMS("FDI train done.\n");
3077 /* Manual link training for Ivy Bridge A0 parts */
3078 static void ivb_manual_fdi_link_train(struct drm_crtc
*crtc
)
3080 struct drm_device
*dev
= crtc
->dev
;
3081 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3082 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3083 int pipe
= intel_crtc
->pipe
;
3084 u32 reg
, temp
, i
, j
;
3086 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3088 reg
= FDI_RX_IMR(pipe
);
3089 temp
= I915_READ(reg
);
3090 temp
&= ~FDI_RX_SYMBOL_LOCK
;
3091 temp
&= ~FDI_RX_BIT_LOCK
;
3092 I915_WRITE(reg
, temp
);
3097 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
3098 I915_READ(FDI_RX_IIR(pipe
)));
3100 /* Try each vswing and preemphasis setting twice before moving on */
3101 for (j
= 0; j
< ARRAY_SIZE(snb_b_fdi_train_param
) * 2; j
++) {
3102 /* disable first in case we need to retry */
3103 reg
= FDI_TX_CTL(pipe
);
3104 temp
= I915_READ(reg
);
3105 temp
&= ~(FDI_LINK_TRAIN_AUTO
| FDI_LINK_TRAIN_NONE_IVB
);
3106 temp
&= ~FDI_TX_ENABLE
;
3107 I915_WRITE(reg
, temp
);
3109 reg
= FDI_RX_CTL(pipe
);
3110 temp
= I915_READ(reg
);
3111 temp
&= ~FDI_LINK_TRAIN_AUTO
;
3112 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3113 temp
&= ~FDI_RX_ENABLE
;
3114 I915_WRITE(reg
, temp
);
3116 /* enable CPU FDI TX and PCH FDI RX */
3117 reg
= FDI_TX_CTL(pipe
);
3118 temp
= I915_READ(reg
);
3119 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
3120 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
.fdi_lanes
);
3121 temp
|= FDI_LINK_TRAIN_PATTERN_1_IVB
;
3122 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3123 temp
|= snb_b_fdi_train_param
[j
/2];
3124 temp
|= FDI_COMPOSITE_SYNC
;
3125 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
3127 I915_WRITE(FDI_RX_MISC(pipe
),
3128 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
3130 reg
= FDI_RX_CTL(pipe
);
3131 temp
= I915_READ(reg
);
3132 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
3133 temp
|= FDI_COMPOSITE_SYNC
;
3134 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
3137 udelay(1); /* should be 0.5us */
3139 for (i
= 0; i
< 4; i
++) {
3140 reg
= FDI_RX_IIR(pipe
);
3141 temp
= I915_READ(reg
);
3142 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3144 if (temp
& FDI_RX_BIT_LOCK
||
3145 (I915_READ(reg
) & FDI_RX_BIT_LOCK
)) {
3146 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
3147 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n",
3151 udelay(1); /* should be 0.5us */
3154 DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j
/ 2);
3159 reg
= FDI_TX_CTL(pipe
);
3160 temp
= I915_READ(reg
);
3161 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
3162 temp
|= FDI_LINK_TRAIN_PATTERN_2_IVB
;
3163 I915_WRITE(reg
, temp
);
3165 reg
= FDI_RX_CTL(pipe
);
3166 temp
= I915_READ(reg
);
3167 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3168 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
3169 I915_WRITE(reg
, temp
);
3172 udelay(2); /* should be 1.5us */
3174 for (i
= 0; i
< 4; i
++) {
3175 reg
= FDI_RX_IIR(pipe
);
3176 temp
= I915_READ(reg
);
3177 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3179 if (temp
& FDI_RX_SYMBOL_LOCK
||
3180 (I915_READ(reg
) & FDI_RX_SYMBOL_LOCK
)) {
3181 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3182 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n",
3186 udelay(2); /* should be 1.5us */
3189 DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j
/ 2);
3193 DRM_DEBUG_KMS("FDI train done.\n");
3196 static void ironlake_fdi_pll_enable(struct intel_crtc
*intel_crtc
)
3198 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3199 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3200 int pipe
= intel_crtc
->pipe
;
3204 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
3205 reg
= FDI_RX_CTL(pipe
);
3206 temp
= I915_READ(reg
);
3207 temp
&= ~(FDI_DP_PORT_WIDTH_MASK
| (0x7 << 16));
3208 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
.fdi_lanes
);
3209 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
3210 I915_WRITE(reg
, temp
| FDI_RX_PLL_ENABLE
);
3215 /* Switch from Rawclk to PCDclk */
3216 temp
= I915_READ(reg
);
3217 I915_WRITE(reg
, temp
| FDI_PCDCLK
);
3222 /* Enable CPU FDI TX PLL, always on for Ironlake */
3223 reg
= FDI_TX_CTL(pipe
);
3224 temp
= I915_READ(reg
);
3225 if ((temp
& FDI_TX_PLL_ENABLE
) == 0) {
3226 I915_WRITE(reg
, temp
| FDI_TX_PLL_ENABLE
);
3233 static void ironlake_fdi_pll_disable(struct intel_crtc
*intel_crtc
)
3235 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3236 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3237 int pipe
= intel_crtc
->pipe
;
3240 /* Switch from PCDclk to Rawclk */
3241 reg
= FDI_RX_CTL(pipe
);
3242 temp
= I915_READ(reg
);
3243 I915_WRITE(reg
, temp
& ~FDI_PCDCLK
);
3245 /* Disable CPU FDI TX PLL */
3246 reg
= FDI_TX_CTL(pipe
);
3247 temp
= I915_READ(reg
);
3248 I915_WRITE(reg
, temp
& ~FDI_TX_PLL_ENABLE
);
3253 reg
= FDI_RX_CTL(pipe
);
3254 temp
= I915_READ(reg
);
3255 I915_WRITE(reg
, temp
& ~FDI_RX_PLL_ENABLE
);
3257 /* Wait for the clocks to turn off. */
3262 static void ironlake_fdi_disable(struct drm_crtc
*crtc
)
3264 struct drm_device
*dev
= crtc
->dev
;
3265 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3266 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3267 int pipe
= intel_crtc
->pipe
;
3270 /* disable CPU FDI tx and PCH FDI rx */
3271 reg
= FDI_TX_CTL(pipe
);
3272 temp
= I915_READ(reg
);
3273 I915_WRITE(reg
, temp
& ~FDI_TX_ENABLE
);
3276 reg
= FDI_RX_CTL(pipe
);
3277 temp
= I915_READ(reg
);
3278 temp
&= ~(0x7 << 16);
3279 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
3280 I915_WRITE(reg
, temp
& ~FDI_RX_ENABLE
);
3285 /* Ironlake workaround, disable clock pointer after downing FDI */
3286 if (HAS_PCH_IBX(dev
))
3287 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
3289 /* still set train pattern 1 */
3290 reg
= FDI_TX_CTL(pipe
);
3291 temp
= I915_READ(reg
);
3292 temp
&= ~FDI_LINK_TRAIN_NONE
;
3293 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3294 I915_WRITE(reg
, temp
);
3296 reg
= FDI_RX_CTL(pipe
);
3297 temp
= I915_READ(reg
);
3298 if (HAS_PCH_CPT(dev
)) {
3299 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3300 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
3302 temp
&= ~FDI_LINK_TRAIN_NONE
;
3303 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3305 /* BPC in FDI rx is consistent with that in PIPECONF */
3306 temp
&= ~(0x07 << 16);
3307 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
3308 I915_WRITE(reg
, temp
);
3314 bool intel_has_pending_fb_unpin(struct drm_device
*dev
)
3316 struct intel_crtc
*crtc
;
3318 /* Note that we don't need to be called with mode_config.lock here
3319 * as our list of CRTC objects is static for the lifetime of the
3320 * device and so cannot disappear as we iterate. Similarly, we can
3321 * happily treat the predicates as racy, atomic checks as userspace
3322 * cannot claim and pin a new fb without at least acquring the
3323 * struct_mutex and so serialising with us.
3325 for_each_intel_crtc(dev
, crtc
) {
3326 if (atomic_read(&crtc
->unpin_work_count
) == 0)
3329 if (crtc
->unpin_work
)
3330 intel_wait_for_vblank(dev
, crtc
->pipe
);
3338 void intel_crtc_wait_for_pending_flips(struct drm_crtc
*crtc
)
3340 struct drm_device
*dev
= crtc
->dev
;
3341 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3343 if (crtc
->primary
->fb
== NULL
)
3346 WARN_ON(waitqueue_active(&dev_priv
->pending_flip_queue
));
3348 WARN_ON(wait_event_timeout(dev_priv
->pending_flip_queue
,
3349 !intel_crtc_has_pending_flip(crtc
),
3352 mutex_lock(&dev
->struct_mutex
);
3353 intel_finish_fb(crtc
->primary
->fb
);
3354 mutex_unlock(&dev
->struct_mutex
);
3357 /* Program iCLKIP clock to the desired frequency */
3358 static void lpt_program_iclkip(struct drm_crtc
*crtc
)
3360 struct drm_device
*dev
= crtc
->dev
;
3361 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3362 int clock
= to_intel_crtc(crtc
)->config
.adjusted_mode
.crtc_clock
;
3363 u32 divsel
, phaseinc
, auxdiv
, phasedir
= 0;
3366 mutex_lock(&dev_priv
->dpio_lock
);
3368 /* It is necessary to ungate the pixclk gate prior to programming
3369 * the divisors, and gate it back when it is done.
3371 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_GATE
);
3373 /* Disable SSCCTL */
3374 intel_sbi_write(dev_priv
, SBI_SSCCTL6
,
3375 intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
) |
3379 /* 20MHz is a corner case which is out of range for the 7-bit divisor */
3380 if (clock
== 20000) {
3385 /* The iCLK virtual clock root frequency is in MHz,
3386 * but the adjusted_mode->crtc_clock in in KHz. To get the
3387 * divisors, it is necessary to divide one by another, so we
3388 * convert the virtual clock precision to KHz here for higher
3391 u32 iclk_virtual_root_freq
= 172800 * 1000;
3392 u32 iclk_pi_range
= 64;
3393 u32 desired_divisor
, msb_divisor_value
, pi_value
;
3395 desired_divisor
= (iclk_virtual_root_freq
/ clock
);
3396 msb_divisor_value
= desired_divisor
/ iclk_pi_range
;
3397 pi_value
= desired_divisor
% iclk_pi_range
;
3400 divsel
= msb_divisor_value
- 2;
3401 phaseinc
= pi_value
;
3404 /* This should not happen with any sane values */
3405 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel
) &
3406 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
);
3407 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir
) &
3408 ~SBI_SSCDIVINTPHASE_INCVAL_MASK
);
3410 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
3417 /* Program SSCDIVINTPHASE6 */
3418 temp
= intel_sbi_read(dev_priv
, SBI_SSCDIVINTPHASE6
, SBI_ICLK
);
3419 temp
&= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
;
3420 temp
|= SBI_SSCDIVINTPHASE_DIVSEL(divsel
);
3421 temp
&= ~SBI_SSCDIVINTPHASE_INCVAL_MASK
;
3422 temp
|= SBI_SSCDIVINTPHASE_INCVAL(phaseinc
);
3423 temp
|= SBI_SSCDIVINTPHASE_DIR(phasedir
);
3424 temp
|= SBI_SSCDIVINTPHASE_PROPAGATE
;
3425 intel_sbi_write(dev_priv
, SBI_SSCDIVINTPHASE6
, temp
, SBI_ICLK
);
3427 /* Program SSCAUXDIV */
3428 temp
= intel_sbi_read(dev_priv
, SBI_SSCAUXDIV6
, SBI_ICLK
);
3429 temp
&= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
3430 temp
|= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv
);
3431 intel_sbi_write(dev_priv
, SBI_SSCAUXDIV6
, temp
, SBI_ICLK
);
3433 /* Enable modulator and associated divider */
3434 temp
= intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
);
3435 temp
&= ~SBI_SSCCTL_DISABLE
;
3436 intel_sbi_write(dev_priv
, SBI_SSCCTL6
, temp
, SBI_ICLK
);
3438 /* Wait for initialization time */
3441 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_UNGATE
);
3443 mutex_unlock(&dev_priv
->dpio_lock
);
3446 static void ironlake_pch_transcoder_set_timings(struct intel_crtc
*crtc
,
3447 enum pipe pch_transcoder
)
3449 struct drm_device
*dev
= crtc
->base
.dev
;
3450 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3451 enum transcoder cpu_transcoder
= crtc
->config
.cpu_transcoder
;
3453 I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder
),
3454 I915_READ(HTOTAL(cpu_transcoder
)));
3455 I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder
),
3456 I915_READ(HBLANK(cpu_transcoder
)));
3457 I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder
),
3458 I915_READ(HSYNC(cpu_transcoder
)));
3460 I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder
),
3461 I915_READ(VTOTAL(cpu_transcoder
)));
3462 I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder
),
3463 I915_READ(VBLANK(cpu_transcoder
)));
3464 I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder
),
3465 I915_READ(VSYNC(cpu_transcoder
)));
3466 I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder
),
3467 I915_READ(VSYNCSHIFT(cpu_transcoder
)));
3470 static void cpt_enable_fdi_bc_bifurcation(struct drm_device
*dev
)
3472 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3475 temp
= I915_READ(SOUTH_CHICKEN1
);
3476 if (temp
& FDI_BC_BIFURCATION_SELECT
)
3479 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B
)) & FDI_RX_ENABLE
);
3480 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C
)) & FDI_RX_ENABLE
);
3482 temp
|= FDI_BC_BIFURCATION_SELECT
;
3483 DRM_DEBUG_KMS("enabling fdi C rx\n");
3484 I915_WRITE(SOUTH_CHICKEN1
, temp
);
3485 POSTING_READ(SOUTH_CHICKEN1
);
3488 static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc
*intel_crtc
)
3490 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3491 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3493 switch (intel_crtc
->pipe
) {
3497 if (intel_crtc
->config
.fdi_lanes
> 2)
3498 WARN_ON(I915_READ(SOUTH_CHICKEN1
) & FDI_BC_BIFURCATION_SELECT
);
3500 cpt_enable_fdi_bc_bifurcation(dev
);
3504 cpt_enable_fdi_bc_bifurcation(dev
);
3513 * Enable PCH resources required for PCH ports:
3515 * - FDI training & RX/TX
3516 * - update transcoder timings
3517 * - DP transcoding bits
3520 static void ironlake_pch_enable(struct drm_crtc
*crtc
)
3522 struct drm_device
*dev
= crtc
->dev
;
3523 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3524 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3525 int pipe
= intel_crtc
->pipe
;
3528 assert_pch_transcoder_disabled(dev_priv
, pipe
);
3530 if (IS_IVYBRIDGE(dev
))
3531 ivybridge_update_fdi_bc_bifurcation(intel_crtc
);
3533 /* Write the TU size bits before fdi link training, so that error
3534 * detection works. */
3535 I915_WRITE(FDI_RX_TUSIZE1(pipe
),
3536 I915_READ(PIPE_DATA_M1(pipe
)) & TU_SIZE_MASK
);
3538 /* For PCH output, training FDI link */
3539 dev_priv
->display
.fdi_link_train(crtc
);
3541 /* We need to program the right clock selection before writing the pixel
3542 * mutliplier into the DPLL. */
3543 if (HAS_PCH_CPT(dev
)) {
3546 temp
= I915_READ(PCH_DPLL_SEL
);
3547 temp
|= TRANS_DPLL_ENABLE(pipe
);
3548 sel
= TRANS_DPLLB_SEL(pipe
);
3549 if (intel_crtc
->config
.shared_dpll
== DPLL_ID_PCH_PLL_B
)
3553 I915_WRITE(PCH_DPLL_SEL
, temp
);
3556 /* XXX: pch pll's can be enabled any time before we enable the PCH
3557 * transcoder, and we actually should do this to not upset any PCH
3558 * transcoder that already use the clock when we share it.
3560 * Note that enable_shared_dpll tries to do the right thing, but
3561 * get_shared_dpll unconditionally resets the pll - we need that to have
3562 * the right LVDS enable sequence. */
3563 intel_enable_shared_dpll(intel_crtc
);
3565 /* set transcoder timing, panel must allow it */
3566 assert_panel_unlocked(dev_priv
, pipe
);
3567 ironlake_pch_transcoder_set_timings(intel_crtc
, pipe
);
3569 intel_fdi_normal_train(crtc
);
3571 /* For PCH DP, enable TRANS_DP_CTL */
3572 if (HAS_PCH_CPT(dev
) &&
3573 (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
) ||
3574 intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
))) {
3575 u32 bpc
= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) >> 5;
3576 reg
= TRANS_DP_CTL(pipe
);
3577 temp
= I915_READ(reg
);
3578 temp
&= ~(TRANS_DP_PORT_SEL_MASK
|
3579 TRANS_DP_SYNC_MASK
|
3581 temp
|= (TRANS_DP_OUTPUT_ENABLE
|
3582 TRANS_DP_ENH_FRAMING
);
3583 temp
|= bpc
<< 9; /* same format but at 11:9 */
3585 if (crtc
->mode
.flags
& DRM_MODE_FLAG_PHSYNC
)
3586 temp
|= TRANS_DP_HSYNC_ACTIVE_HIGH
;
3587 if (crtc
->mode
.flags
& DRM_MODE_FLAG_PVSYNC
)
3588 temp
|= TRANS_DP_VSYNC_ACTIVE_HIGH
;
3590 switch (intel_trans_dp_port_sel(crtc
)) {
3592 temp
|= TRANS_DP_PORT_SEL_B
;
3595 temp
|= TRANS_DP_PORT_SEL_C
;
3598 temp
|= TRANS_DP_PORT_SEL_D
;
3604 I915_WRITE(reg
, temp
);
3607 ironlake_enable_pch_transcoder(dev_priv
, pipe
);
3610 static void lpt_pch_enable(struct drm_crtc
*crtc
)
3612 struct drm_device
*dev
= crtc
->dev
;
3613 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3614 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3615 enum transcoder cpu_transcoder
= intel_crtc
->config
.cpu_transcoder
;
3617 assert_pch_transcoder_disabled(dev_priv
, TRANSCODER_A
);
3619 lpt_program_iclkip(crtc
);
3621 /* Set transcoder timing. */
3622 ironlake_pch_transcoder_set_timings(intel_crtc
, PIPE_A
);
3624 lpt_enable_pch_transcoder(dev_priv
, cpu_transcoder
);
3627 void intel_put_shared_dpll(struct intel_crtc
*crtc
)
3629 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
3634 if (pll
->refcount
== 0) {
3635 WARN(1, "bad %s refcount\n", pll
->name
);
3639 if (--pll
->refcount
== 0) {
3641 WARN_ON(pll
->active
);
3644 crtc
->config
.shared_dpll
= DPLL_ID_PRIVATE
;
3647 struct intel_shared_dpll
*intel_get_shared_dpll(struct intel_crtc
*crtc
)
3649 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
3650 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
3651 enum intel_dpll_id i
;
3654 DRM_DEBUG_KMS("CRTC:%d dropping existing %s\n",
3655 crtc
->base
.base
.id
, pll
->name
);
3656 intel_put_shared_dpll(crtc
);
3659 if (HAS_PCH_IBX(dev_priv
->dev
)) {
3660 /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
3661 i
= (enum intel_dpll_id
) crtc
->pipe
;
3662 pll
= &dev_priv
->shared_dplls
[i
];
3664 DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n",
3665 crtc
->base
.base
.id
, pll
->name
);
3667 WARN_ON(pll
->refcount
);
3672 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
3673 pll
= &dev_priv
->shared_dplls
[i
];
3675 /* Only want to check enabled timings first */
3676 if (pll
->refcount
== 0)
3679 if (memcmp(&crtc
->config
.dpll_hw_state
, &pll
->hw_state
,
3680 sizeof(pll
->hw_state
)) == 0) {
3681 DRM_DEBUG_KMS("CRTC:%d sharing existing %s (refcount %d, ative %d)\n",
3683 pll
->name
, pll
->refcount
, pll
->active
);
3689 /* Ok no matching timings, maybe there's a free one? */
3690 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
3691 pll
= &dev_priv
->shared_dplls
[i
];
3692 if (pll
->refcount
== 0) {
3693 DRM_DEBUG_KMS("CRTC:%d allocated %s\n",
3694 crtc
->base
.base
.id
, pll
->name
);
3702 if (pll
->refcount
== 0)
3703 pll
->hw_state
= crtc
->config
.dpll_hw_state
;
3705 crtc
->config
.shared_dpll
= i
;
3706 DRM_DEBUG_DRIVER("using %s for pipe %c\n", pll
->name
,
3707 pipe_name(crtc
->pipe
));
3714 static void cpt_verify_modeset(struct drm_device
*dev
, int pipe
)
3716 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3717 int dslreg
= PIPEDSL(pipe
);
3720 temp
= I915_READ(dslreg
);
3722 if (wait_for(I915_READ(dslreg
) != temp
, 5)) {
3723 if (wait_for(I915_READ(dslreg
) != temp
, 5))
3724 DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe
));
3728 static void ironlake_pfit_enable(struct intel_crtc
*crtc
)
3730 struct drm_device
*dev
= crtc
->base
.dev
;
3731 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3732 int pipe
= crtc
->pipe
;
3734 if (crtc
->config
.pch_pfit
.enabled
) {
3735 /* Force use of hard-coded filter coefficients
3736 * as some pre-programmed values are broken,
3739 if (IS_IVYBRIDGE(dev
) || IS_HASWELL(dev
))
3740 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
|
3741 PF_PIPE_SEL_IVB(pipe
));
3743 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
);
3744 I915_WRITE(PF_WIN_POS(pipe
), crtc
->config
.pch_pfit
.pos
);
3745 I915_WRITE(PF_WIN_SZ(pipe
), crtc
->config
.pch_pfit
.size
);
3749 static void intel_enable_planes(struct drm_crtc
*crtc
)
3751 struct drm_device
*dev
= crtc
->dev
;
3752 enum pipe pipe
= to_intel_crtc(crtc
)->pipe
;
3753 struct drm_plane
*plane
;
3754 struct intel_plane
*intel_plane
;
3756 drm_for_each_legacy_plane(plane
, &dev
->mode_config
.plane_list
) {
3757 intel_plane
= to_intel_plane(plane
);
3758 if (intel_plane
->pipe
== pipe
)
3759 intel_plane_restore(&intel_plane
->base
);
3763 static void intel_disable_planes(struct drm_crtc
*crtc
)
3765 struct drm_device
*dev
= crtc
->dev
;
3766 enum pipe pipe
= to_intel_crtc(crtc
)->pipe
;
3767 struct drm_plane
*plane
;
3768 struct intel_plane
*intel_plane
;
3770 drm_for_each_legacy_plane(plane
, &dev
->mode_config
.plane_list
) {
3771 intel_plane
= to_intel_plane(plane
);
3772 if (intel_plane
->pipe
== pipe
)
3773 intel_plane_disable(&intel_plane
->base
);
3777 void hsw_enable_ips(struct intel_crtc
*crtc
)
3779 struct drm_device
*dev
= crtc
->base
.dev
;
3780 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3782 if (!crtc
->config
.ips_enabled
)
3785 /* We can only enable IPS after we enable a plane and wait for a vblank */
3786 intel_wait_for_vblank(dev
, crtc
->pipe
);
3788 assert_plane_enabled(dev_priv
, crtc
->plane
);
3789 if (IS_BROADWELL(dev
)) {
3790 mutex_lock(&dev_priv
->rps
.hw_lock
);
3791 WARN_ON(sandybridge_pcode_write(dev_priv
, DISPLAY_IPS_CONTROL
, 0xc0000000));
3792 mutex_unlock(&dev_priv
->rps
.hw_lock
);
3793 /* Quoting Art Runyan: "its not safe to expect any particular
3794 * value in IPS_CTL bit 31 after enabling IPS through the
3795 * mailbox." Moreover, the mailbox may return a bogus state,
3796 * so we need to just enable it and continue on.
3799 I915_WRITE(IPS_CTL
, IPS_ENABLE
);
3800 /* The bit only becomes 1 in the next vblank, so this wait here
3801 * is essentially intel_wait_for_vblank. If we don't have this
3802 * and don't wait for vblanks until the end of crtc_enable, then
3803 * the HW state readout code will complain that the expected
3804 * IPS_CTL value is not the one we read. */
3805 if (wait_for(I915_READ_NOTRACE(IPS_CTL
) & IPS_ENABLE
, 50))
3806 DRM_ERROR("Timed out waiting for IPS enable\n");
3810 void hsw_disable_ips(struct intel_crtc
*crtc
)
3812 struct drm_device
*dev
= crtc
->base
.dev
;
3813 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3815 if (!crtc
->config
.ips_enabled
)
3818 assert_plane_enabled(dev_priv
, crtc
->plane
);
3819 if (IS_BROADWELL(dev
)) {
3820 mutex_lock(&dev_priv
->rps
.hw_lock
);
3821 WARN_ON(sandybridge_pcode_write(dev_priv
, DISPLAY_IPS_CONTROL
, 0));
3822 mutex_unlock(&dev_priv
->rps
.hw_lock
);
3823 /* wait for pcode to finish disabling IPS, which may take up to 42ms */
3824 if (wait_for((I915_READ(IPS_CTL
) & IPS_ENABLE
) == 0, 42))
3825 DRM_ERROR("Timed out waiting for IPS disable\n");
3827 I915_WRITE(IPS_CTL
, 0);
3828 POSTING_READ(IPS_CTL
);
3831 /* We need to wait for a vblank before we can disable the plane. */
3832 intel_wait_for_vblank(dev
, crtc
->pipe
);
3835 /** Loads the palette/gamma unit for the CRTC with the prepared values */
3836 static void intel_crtc_load_lut(struct drm_crtc
*crtc
)
3838 struct drm_device
*dev
= crtc
->dev
;
3839 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3840 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3841 enum pipe pipe
= intel_crtc
->pipe
;
3842 int palreg
= PALETTE(pipe
);
3844 bool reenable_ips
= false;
3846 /* The clocks have to be on to load the palette. */
3847 if (!crtc
->enabled
|| !intel_crtc
->active
)
3850 if (!HAS_PCH_SPLIT(dev_priv
->dev
)) {
3851 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DSI
))
3852 assert_dsi_pll_enabled(dev_priv
);
3854 assert_pll_enabled(dev_priv
, pipe
);
3857 /* use legacy palette for Ironlake */
3858 if (!HAS_GMCH_DISPLAY(dev
))
3859 palreg
= LGC_PALETTE(pipe
);
3861 /* Workaround : Do not read or write the pipe palette/gamma data while
3862 * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled.
3864 if (IS_HASWELL(dev
) && intel_crtc
->config
.ips_enabled
&&
3865 ((I915_READ(GAMMA_MODE(pipe
)) & GAMMA_MODE_MODE_MASK
) ==
3866 GAMMA_MODE_MODE_SPLIT
)) {
3867 hsw_disable_ips(intel_crtc
);
3868 reenable_ips
= true;
3871 for (i
= 0; i
< 256; i
++) {
3872 I915_WRITE(palreg
+ 4 * i
,
3873 (intel_crtc
->lut_r
[i
] << 16) |
3874 (intel_crtc
->lut_g
[i
] << 8) |
3875 intel_crtc
->lut_b
[i
]);
3879 hsw_enable_ips(intel_crtc
);
3882 static void intel_crtc_dpms_overlay(struct intel_crtc
*intel_crtc
, bool enable
)
3884 if (!enable
&& intel_crtc
->overlay
) {
3885 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3886 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3888 mutex_lock(&dev
->struct_mutex
);
3889 dev_priv
->mm
.interruptible
= false;
3890 (void) intel_overlay_switch_off(intel_crtc
->overlay
);
3891 dev_priv
->mm
.interruptible
= true;
3892 mutex_unlock(&dev
->struct_mutex
);
3895 /* Let userspace switch the overlay on again. In most cases userspace
3896 * has to recompute where to put it anyway.
3900 static void intel_crtc_enable_planes(struct drm_crtc
*crtc
)
3902 struct drm_device
*dev
= crtc
->dev
;
3903 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3904 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3905 int pipe
= intel_crtc
->pipe
;
3906 int plane
= intel_crtc
->plane
;
3908 drm_vblank_on(dev
, pipe
);
3910 intel_enable_primary_hw_plane(dev_priv
, plane
, pipe
);
3911 intel_enable_planes(crtc
);
3912 intel_crtc_update_cursor(crtc
, true);
3913 intel_crtc_dpms_overlay(intel_crtc
, true);
3915 hsw_enable_ips(intel_crtc
);
3917 mutex_lock(&dev
->struct_mutex
);
3918 intel_update_fbc(dev
);
3919 mutex_unlock(&dev
->struct_mutex
);
3922 * FIXME: Once we grow proper nuclear flip support out of this we need
3923 * to compute the mask of flip planes precisely. For the time being
3924 * consider this a flip from a NULL plane.
3926 intel_frontbuffer_flip(dev
, INTEL_FRONTBUFFER_ALL_MASK(pipe
));
3929 static void intel_crtc_disable_planes(struct drm_crtc
*crtc
)
3931 struct drm_device
*dev
= crtc
->dev
;
3932 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3933 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3934 int pipe
= intel_crtc
->pipe
;
3935 int plane
= intel_crtc
->plane
;
3937 intel_crtc_wait_for_pending_flips(crtc
);
3939 if (dev_priv
->fbc
.plane
== plane
)
3940 intel_disable_fbc(dev
);
3942 hsw_disable_ips(intel_crtc
);
3944 intel_crtc_dpms_overlay(intel_crtc
, false);
3945 intel_crtc_update_cursor(crtc
, false);
3946 intel_disable_planes(crtc
);
3947 intel_disable_primary_hw_plane(dev_priv
, plane
, pipe
);
3950 * FIXME: Once we grow proper nuclear flip support out of this we need
3951 * to compute the mask of flip planes precisely. For the time being
3952 * consider this a flip to a NULL plane.
3954 intel_frontbuffer_flip(dev
, INTEL_FRONTBUFFER_ALL_MASK(pipe
));
3956 drm_vblank_off(dev
, pipe
);
3959 static void ironlake_crtc_enable(struct drm_crtc
*crtc
)
3961 struct drm_device
*dev
= crtc
->dev
;
3962 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3963 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3964 struct intel_encoder
*encoder
;
3965 int pipe
= intel_crtc
->pipe
;
3966 enum plane plane
= intel_crtc
->plane
;
3968 WARN_ON(!crtc
->enabled
);
3970 if (intel_crtc
->active
)
3973 if (intel_crtc
->config
.has_pch_encoder
)
3974 intel_prepare_shared_dpll(intel_crtc
);
3976 if (intel_crtc
->config
.has_dp_encoder
)
3977 intel_dp_set_m_n(intel_crtc
);
3979 intel_set_pipe_timings(intel_crtc
);
3981 if (intel_crtc
->config
.has_pch_encoder
) {
3982 intel_cpu_transcoder_set_m_n(intel_crtc
,
3983 &intel_crtc
->config
.fdi_m_n
, NULL
);
3986 ironlake_set_pipeconf(crtc
);
3988 /* Set up the display plane register */
3989 I915_WRITE(DSPCNTR(plane
), DISPPLANE_GAMMA_ENABLE
);
3990 POSTING_READ(DSPCNTR(plane
));
3992 dev_priv
->display
.update_primary_plane(crtc
, crtc
->primary
->fb
,
3995 intel_crtc
->active
= true;
3997 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, true);
3998 intel_set_pch_fifo_underrun_reporting(dev
, pipe
, true);
4000 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4001 if (encoder
->pre_enable
)
4002 encoder
->pre_enable(encoder
);
4004 if (intel_crtc
->config
.has_pch_encoder
) {
4005 /* Note: FDI PLL enabling _must_ be done before we enable the
4006 * cpu pipes, hence this is separate from all the other fdi/pch
4008 ironlake_fdi_pll_enable(intel_crtc
);
4010 assert_fdi_tx_disabled(dev_priv
, pipe
);
4011 assert_fdi_rx_disabled(dev_priv
, pipe
);
4014 ironlake_pfit_enable(intel_crtc
);
4017 * On ILK+ LUT must be loaded before the pipe is running but with
4020 intel_crtc_load_lut(crtc
);
4022 intel_update_watermarks(crtc
);
4023 intel_enable_pipe(intel_crtc
);
4025 if (intel_crtc
->config
.has_pch_encoder
)
4026 ironlake_pch_enable(crtc
);
4028 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4029 encoder
->enable(encoder
);
4031 if (HAS_PCH_CPT(dev
))
4032 cpt_verify_modeset(dev
, intel_crtc
->pipe
);
4034 intel_crtc_enable_planes(crtc
);
4037 /* IPS only exists on ULT machines and is tied to pipe A. */
4038 static bool hsw_crtc_supports_ips(struct intel_crtc
*crtc
)
4040 return HAS_IPS(crtc
->base
.dev
) && crtc
->pipe
== PIPE_A
;
4044 * This implements the workaround described in the "notes" section of the mode
4045 * set sequence documentation. When going from no pipes or single pipe to
4046 * multiple pipes, and planes are enabled after the pipe, we need to wait at
4047 * least 2 vblanks on the first pipe before enabling planes on the second pipe.
4049 static void haswell_mode_set_planes_workaround(struct intel_crtc
*crtc
)
4051 struct drm_device
*dev
= crtc
->base
.dev
;
4052 struct intel_crtc
*crtc_it
, *other_active_crtc
= NULL
;
4054 /* We want to get the other_active_crtc only if there's only 1 other
4056 for_each_intel_crtc(dev
, crtc_it
) {
4057 if (!crtc_it
->active
|| crtc_it
== crtc
)
4060 if (other_active_crtc
)
4063 other_active_crtc
= crtc_it
;
4065 if (!other_active_crtc
)
4068 intel_wait_for_vblank(dev
, other_active_crtc
->pipe
);
4069 intel_wait_for_vblank(dev
, other_active_crtc
->pipe
);
4072 static void haswell_crtc_enable(struct drm_crtc
*crtc
)
4074 struct drm_device
*dev
= crtc
->dev
;
4075 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4076 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4077 struct intel_encoder
*encoder
;
4078 int pipe
= intel_crtc
->pipe
;
4079 enum plane plane
= intel_crtc
->plane
;
4081 WARN_ON(!crtc
->enabled
);
4083 if (intel_crtc
->active
)
4086 if (intel_crtc_to_shared_dpll(intel_crtc
))
4087 intel_enable_shared_dpll(intel_crtc
);
4089 if (intel_crtc
->config
.has_dp_encoder
)
4090 intel_dp_set_m_n(intel_crtc
);
4092 intel_set_pipe_timings(intel_crtc
);
4094 if (intel_crtc
->config
.has_pch_encoder
) {
4095 intel_cpu_transcoder_set_m_n(intel_crtc
,
4096 &intel_crtc
->config
.fdi_m_n
, NULL
);
4099 haswell_set_pipeconf(crtc
);
4101 intel_set_pipe_csc(crtc
);
4103 /* Set up the display plane register */
4104 I915_WRITE(DSPCNTR(plane
), DISPPLANE_GAMMA_ENABLE
| DISPPLANE_PIPE_CSC_ENABLE
);
4105 POSTING_READ(DSPCNTR(plane
));
4107 dev_priv
->display
.update_primary_plane(crtc
, crtc
->primary
->fb
,
4110 intel_crtc
->active
= true;
4112 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, true);
4113 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4114 if (encoder
->pre_enable
)
4115 encoder
->pre_enable(encoder
);
4117 if (intel_crtc
->config
.has_pch_encoder
) {
4118 intel_set_pch_fifo_underrun_reporting(dev
, TRANSCODER_A
, true);
4119 dev_priv
->display
.fdi_link_train(crtc
);
4122 intel_ddi_enable_pipe_clock(intel_crtc
);
4124 ironlake_pfit_enable(intel_crtc
);
4127 * On ILK+ LUT must be loaded before the pipe is running but with
4130 intel_crtc_load_lut(crtc
);
4132 intel_ddi_set_pipe_settings(crtc
);
4133 intel_ddi_enable_transcoder_func(crtc
);
4135 intel_update_watermarks(crtc
);
4136 intel_enable_pipe(intel_crtc
);
4138 if (intel_crtc
->config
.has_pch_encoder
)
4139 lpt_pch_enable(crtc
);
4141 if (intel_crtc
->config
.dp_encoder_is_mst
)
4142 intel_ddi_set_vc_payload_alloc(crtc
, true);
4144 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
4145 encoder
->enable(encoder
);
4146 intel_opregion_notify_encoder(encoder
, true);
4149 /* If we change the relative order between pipe/planes enabling, we need
4150 * to change the workaround. */
4151 haswell_mode_set_planes_workaround(intel_crtc
);
4152 intel_crtc_enable_planes(crtc
);
4155 static void ironlake_pfit_disable(struct intel_crtc
*crtc
)
4157 struct drm_device
*dev
= crtc
->base
.dev
;
4158 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4159 int pipe
= crtc
->pipe
;
4161 /* To avoid upsetting the power well on haswell only disable the pfit if
4162 * it's in use. The hw state code will make sure we get this right. */
4163 if (crtc
->config
.pch_pfit
.enabled
) {
4164 I915_WRITE(PF_CTL(pipe
), 0);
4165 I915_WRITE(PF_WIN_POS(pipe
), 0);
4166 I915_WRITE(PF_WIN_SZ(pipe
), 0);
4170 static void ironlake_crtc_disable(struct drm_crtc
*crtc
)
4172 struct drm_device
*dev
= crtc
->dev
;
4173 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4174 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4175 struct intel_encoder
*encoder
;
4176 int pipe
= intel_crtc
->pipe
;
4179 if (!intel_crtc
->active
)
4182 intel_crtc_disable_planes(crtc
);
4184 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4185 encoder
->disable(encoder
);
4187 if (intel_crtc
->config
.has_pch_encoder
)
4188 intel_set_pch_fifo_underrun_reporting(dev
, pipe
, false);
4190 intel_disable_pipe(dev_priv
, pipe
);
4192 if (intel_crtc
->config
.dp_encoder_is_mst
)
4193 intel_ddi_set_vc_payload_alloc(crtc
, false);
4195 ironlake_pfit_disable(intel_crtc
);
4197 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4198 if (encoder
->post_disable
)
4199 encoder
->post_disable(encoder
);
4201 if (intel_crtc
->config
.has_pch_encoder
) {
4202 ironlake_fdi_disable(crtc
);
4204 ironlake_disable_pch_transcoder(dev_priv
, pipe
);
4205 intel_set_pch_fifo_underrun_reporting(dev
, pipe
, true);
4207 if (HAS_PCH_CPT(dev
)) {
4208 /* disable TRANS_DP_CTL */
4209 reg
= TRANS_DP_CTL(pipe
);
4210 temp
= I915_READ(reg
);
4211 temp
&= ~(TRANS_DP_OUTPUT_ENABLE
|
4212 TRANS_DP_PORT_SEL_MASK
);
4213 temp
|= TRANS_DP_PORT_SEL_NONE
;
4214 I915_WRITE(reg
, temp
);
4216 /* disable DPLL_SEL */
4217 temp
= I915_READ(PCH_DPLL_SEL
);
4218 temp
&= ~(TRANS_DPLL_ENABLE(pipe
) | TRANS_DPLLB_SEL(pipe
));
4219 I915_WRITE(PCH_DPLL_SEL
, temp
);
4222 /* disable PCH DPLL */
4223 intel_disable_shared_dpll(intel_crtc
);
4225 ironlake_fdi_pll_disable(intel_crtc
);
4228 intel_crtc
->active
= false;
4229 intel_update_watermarks(crtc
);
4231 mutex_lock(&dev
->struct_mutex
);
4232 intel_update_fbc(dev
);
4233 mutex_unlock(&dev
->struct_mutex
);
4236 static void haswell_crtc_disable(struct drm_crtc
*crtc
)
4238 struct drm_device
*dev
= crtc
->dev
;
4239 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4240 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4241 struct intel_encoder
*encoder
;
4242 int pipe
= intel_crtc
->pipe
;
4243 enum transcoder cpu_transcoder
= intel_crtc
->config
.cpu_transcoder
;
4245 if (!intel_crtc
->active
)
4248 intel_crtc_disable_planes(crtc
);
4250 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
4251 intel_opregion_notify_encoder(encoder
, false);
4252 encoder
->disable(encoder
);
4255 if (intel_crtc
->config
.has_pch_encoder
)
4256 intel_set_pch_fifo_underrun_reporting(dev
, TRANSCODER_A
, false);
4257 intel_disable_pipe(dev_priv
, pipe
);
4259 intel_ddi_disable_transcoder_func(dev_priv
, cpu_transcoder
);
4261 ironlake_pfit_disable(intel_crtc
);
4263 intel_ddi_disable_pipe_clock(intel_crtc
);
4265 if (intel_crtc
->config
.has_pch_encoder
) {
4266 lpt_disable_pch_transcoder(dev_priv
);
4267 intel_set_pch_fifo_underrun_reporting(dev
, TRANSCODER_A
, true);
4268 intel_ddi_fdi_disable(crtc
);
4271 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4272 if (encoder
->post_disable
)
4273 encoder
->post_disable(encoder
);
4275 intel_crtc
->active
= false;
4276 intel_update_watermarks(crtc
);
4278 mutex_lock(&dev
->struct_mutex
);
4279 intel_update_fbc(dev
);
4280 mutex_unlock(&dev
->struct_mutex
);
4282 if (intel_crtc_to_shared_dpll(intel_crtc
))
4283 intel_disable_shared_dpll(intel_crtc
);
4286 static void ironlake_crtc_off(struct drm_crtc
*crtc
)
4288 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4289 intel_put_shared_dpll(intel_crtc
);
4293 static void i9xx_pfit_enable(struct intel_crtc
*crtc
)
4295 struct drm_device
*dev
= crtc
->base
.dev
;
4296 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4297 struct intel_crtc_config
*pipe_config
= &crtc
->config
;
4299 if (!crtc
->config
.gmch_pfit
.control
)
4303 * The panel fitter should only be adjusted whilst the pipe is disabled,
4304 * according to register description and PRM.
4306 WARN_ON(I915_READ(PFIT_CONTROL
) & PFIT_ENABLE
);
4307 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
4309 I915_WRITE(PFIT_PGM_RATIOS
, pipe_config
->gmch_pfit
.pgm_ratios
);
4310 I915_WRITE(PFIT_CONTROL
, pipe_config
->gmch_pfit
.control
);
4312 /* Border color in case we don't scale up to the full screen. Black by
4313 * default, change to something else for debugging. */
4314 I915_WRITE(BCLRPAT(crtc
->pipe
), 0);
4317 static enum intel_display_power_domain
port_to_power_domain(enum port port
)
4321 return POWER_DOMAIN_PORT_DDI_A_4_LANES
;
4323 return POWER_DOMAIN_PORT_DDI_B_4_LANES
;
4325 return POWER_DOMAIN_PORT_DDI_C_4_LANES
;
4327 return POWER_DOMAIN_PORT_DDI_D_4_LANES
;
4330 return POWER_DOMAIN_PORT_OTHER
;
4334 #define for_each_power_domain(domain, mask) \
4335 for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
4336 if ((1 << (domain)) & (mask))
4338 enum intel_display_power_domain
4339 intel_display_port_power_domain(struct intel_encoder
*intel_encoder
)
4341 struct drm_device
*dev
= intel_encoder
->base
.dev
;
4342 struct intel_digital_port
*intel_dig_port
;
4344 switch (intel_encoder
->type
) {
4345 case INTEL_OUTPUT_UNKNOWN
:
4346 /* Only DDI platforms should ever use this output type */
4347 WARN_ON_ONCE(!HAS_DDI(dev
));
4348 case INTEL_OUTPUT_DISPLAYPORT
:
4349 case INTEL_OUTPUT_HDMI
:
4350 case INTEL_OUTPUT_EDP
:
4351 intel_dig_port
= enc_to_dig_port(&intel_encoder
->base
);
4352 return port_to_power_domain(intel_dig_port
->port
);
4353 case INTEL_OUTPUT_DP_MST
:
4354 intel_dig_port
= enc_to_mst(&intel_encoder
->base
)->primary
;
4355 return port_to_power_domain(intel_dig_port
->port
);
4356 case INTEL_OUTPUT_ANALOG
:
4357 return POWER_DOMAIN_PORT_CRT
;
4358 case INTEL_OUTPUT_DSI
:
4359 return POWER_DOMAIN_PORT_DSI
;
4361 return POWER_DOMAIN_PORT_OTHER
;
4365 static unsigned long get_crtc_power_domains(struct drm_crtc
*crtc
)
4367 struct drm_device
*dev
= crtc
->dev
;
4368 struct intel_encoder
*intel_encoder
;
4369 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4370 enum pipe pipe
= intel_crtc
->pipe
;
4372 enum transcoder transcoder
;
4374 transcoder
= intel_pipe_to_cpu_transcoder(dev
->dev_private
, pipe
);
4376 mask
= BIT(POWER_DOMAIN_PIPE(pipe
));
4377 mask
|= BIT(POWER_DOMAIN_TRANSCODER(transcoder
));
4378 if (intel_crtc
->config
.pch_pfit
.enabled
||
4379 intel_crtc
->config
.pch_pfit
.force_thru
)
4380 mask
|= BIT(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe
));
4382 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
)
4383 mask
|= BIT(intel_display_port_power_domain(intel_encoder
));
4388 void intel_display_set_init_power(struct drm_i915_private
*dev_priv
,
4391 if (dev_priv
->power_domains
.init_power_on
== enable
)
4395 intel_display_power_get(dev_priv
, POWER_DOMAIN_INIT
);
4397 intel_display_power_put(dev_priv
, POWER_DOMAIN_INIT
);
4399 dev_priv
->power_domains
.init_power_on
= enable
;
4402 static void modeset_update_crtc_power_domains(struct drm_device
*dev
)
4404 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4405 unsigned long pipe_domains
[I915_MAX_PIPES
] = { 0, };
4406 struct intel_crtc
*crtc
;
4409 * First get all needed power domains, then put all unneeded, to avoid
4410 * any unnecessary toggling of the power wells.
4412 for_each_intel_crtc(dev
, crtc
) {
4413 enum intel_display_power_domain domain
;
4415 if (!crtc
->base
.enabled
)
4418 pipe_domains
[crtc
->pipe
] = get_crtc_power_domains(&crtc
->base
);
4420 for_each_power_domain(domain
, pipe_domains
[crtc
->pipe
])
4421 intel_display_power_get(dev_priv
, domain
);
4424 for_each_intel_crtc(dev
, crtc
) {
4425 enum intel_display_power_domain domain
;
4427 for_each_power_domain(domain
, crtc
->enabled_power_domains
)
4428 intel_display_power_put(dev_priv
, domain
);
4430 crtc
->enabled_power_domains
= pipe_domains
[crtc
->pipe
];
4433 intel_display_set_init_power(dev_priv
, false);
4436 /* returns HPLL frequency in kHz */
4437 static int valleyview_get_vco(struct drm_i915_private
*dev_priv
)
4439 int hpll_freq
, vco_freq
[] = { 800, 1600, 2000, 2400 };
4441 /* Obtain SKU information */
4442 mutex_lock(&dev_priv
->dpio_lock
);
4443 hpll_freq
= vlv_cck_read(dev_priv
, CCK_FUSE_REG
) &
4444 CCK_FUSE_HPLL_FREQ_MASK
;
4445 mutex_unlock(&dev_priv
->dpio_lock
);
4447 return vco_freq
[hpll_freq
] * 1000;
4450 static void vlv_update_cdclk(struct drm_device
*dev
)
4452 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4454 dev_priv
->vlv_cdclk_freq
= dev_priv
->display
.get_display_clock_speed(dev
);
4455 DRM_DEBUG_DRIVER("Current CD clock rate: %d kHz",
4456 dev_priv
->vlv_cdclk_freq
);
4459 * Program the gmbus_freq based on the cdclk frequency.
4460 * BSpec erroneously claims we should aim for 4MHz, but
4461 * in fact 1MHz is the correct frequency.
4463 I915_WRITE(GMBUSFREQ_VLV
, dev_priv
->vlv_cdclk_freq
);
4466 /* Adjust CDclk dividers to allow high res or save power if possible */
4467 static void valleyview_set_cdclk(struct drm_device
*dev
, int cdclk
)
4469 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4472 WARN_ON(dev_priv
->display
.get_display_clock_speed(dev
) != dev_priv
->vlv_cdclk_freq
);
4474 if (cdclk
>= 320000) /* jump to highest voltage for 400MHz too */
4476 else if (cdclk
== 266667)
4481 mutex_lock(&dev_priv
->rps
.hw_lock
);
4482 val
= vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
);
4483 val
&= ~DSPFREQGUAR_MASK
;
4484 val
|= (cmd
<< DSPFREQGUAR_SHIFT
);
4485 vlv_punit_write(dev_priv
, PUNIT_REG_DSPFREQ
, val
);
4486 if (wait_for((vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
) &
4487 DSPFREQSTAT_MASK
) == (cmd
<< DSPFREQSTAT_SHIFT
),
4489 DRM_ERROR("timed out waiting for CDclk change\n");
4491 mutex_unlock(&dev_priv
->rps
.hw_lock
);
4493 if (cdclk
== 400000) {
4496 vco
= valleyview_get_vco(dev_priv
);
4497 divider
= DIV_ROUND_CLOSEST(vco
<< 1, cdclk
) - 1;
4499 mutex_lock(&dev_priv
->dpio_lock
);
4500 /* adjust cdclk divider */
4501 val
= vlv_cck_read(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
);
4502 val
&= ~DISPLAY_FREQUENCY_VALUES
;
4504 vlv_cck_write(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
, val
);
4506 if (wait_for((vlv_cck_read(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
) &
4507 DISPLAY_FREQUENCY_STATUS
) == (divider
<< DISPLAY_FREQUENCY_STATUS_SHIFT
),
4509 DRM_ERROR("timed out waiting for CDclk change\n");
4510 mutex_unlock(&dev_priv
->dpio_lock
);
4513 mutex_lock(&dev_priv
->dpio_lock
);
4514 /* adjust self-refresh exit latency value */
4515 val
= vlv_bunit_read(dev_priv
, BUNIT_REG_BISOC
);
4519 * For high bandwidth configs, we set a higher latency in the bunit
4520 * so that the core display fetch happens in time to avoid underruns.
4522 if (cdclk
== 400000)
4523 val
|= 4500 / 250; /* 4.5 usec */
4525 val
|= 3000 / 250; /* 3.0 usec */
4526 vlv_bunit_write(dev_priv
, BUNIT_REG_BISOC
, val
);
4527 mutex_unlock(&dev_priv
->dpio_lock
);
4529 vlv_update_cdclk(dev
);
4532 static int valleyview_calc_cdclk(struct drm_i915_private
*dev_priv
,
4535 int vco
= valleyview_get_vco(dev_priv
);
4536 int freq_320
= (vco
<< 1) % 320000 != 0 ? 333333 : 320000;
4539 * Really only a few cases to deal with, as only 4 CDclks are supported:
4542 * 320/333MHz (depends on HPLL freq)
4544 * So we check to see whether we're above 90% of the lower bin and
4547 * We seem to get an unstable or solid color picture at 200MHz.
4548 * Not sure what's wrong. For now use 200MHz only when all pipes
4551 if (max_pixclk
> freq_320
*9/10)
4553 else if (max_pixclk
> 266667*9/10)
4555 else if (max_pixclk
> 0)
4561 /* compute the max pixel clock for new configuration */
4562 static int intel_mode_max_pixclk(struct drm_i915_private
*dev_priv
)
4564 struct drm_device
*dev
= dev_priv
->dev
;
4565 struct intel_crtc
*intel_crtc
;
4568 for_each_intel_crtc(dev
, intel_crtc
) {
4569 if (intel_crtc
->new_enabled
)
4570 max_pixclk
= max(max_pixclk
,
4571 intel_crtc
->new_config
->adjusted_mode
.crtc_clock
);
4577 static void valleyview_modeset_global_pipes(struct drm_device
*dev
,
4578 unsigned *prepare_pipes
)
4580 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4581 struct intel_crtc
*intel_crtc
;
4582 int max_pixclk
= intel_mode_max_pixclk(dev_priv
);
4584 if (valleyview_calc_cdclk(dev_priv
, max_pixclk
) ==
4585 dev_priv
->vlv_cdclk_freq
)
4588 /* disable/enable all currently active pipes while we change cdclk */
4589 for_each_intel_crtc(dev
, intel_crtc
)
4590 if (intel_crtc
->base
.enabled
)
4591 *prepare_pipes
|= (1 << intel_crtc
->pipe
);
4594 static void valleyview_modeset_global_resources(struct drm_device
*dev
)
4596 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4597 int max_pixclk
= intel_mode_max_pixclk(dev_priv
);
4598 int req_cdclk
= valleyview_calc_cdclk(dev_priv
, max_pixclk
);
4600 if (req_cdclk
!= dev_priv
->vlv_cdclk_freq
)
4601 valleyview_set_cdclk(dev
, req_cdclk
);
4602 modeset_update_crtc_power_domains(dev
);
4605 static void valleyview_crtc_enable(struct drm_crtc
*crtc
)
4607 struct drm_device
*dev
= crtc
->dev
;
4608 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4609 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4610 struct intel_encoder
*encoder
;
4611 int pipe
= intel_crtc
->pipe
;
4612 int plane
= intel_crtc
->plane
;
4616 WARN_ON(!crtc
->enabled
);
4618 if (intel_crtc
->active
)
4621 is_dsi
= intel_pipe_has_type(crtc
, INTEL_OUTPUT_DSI
);
4623 if (!is_dsi
&& !IS_CHERRYVIEW(dev
))
4624 vlv_prepare_pll(intel_crtc
);
4626 /* Set up the display plane register */
4627 dspcntr
= DISPPLANE_GAMMA_ENABLE
;
4629 if (intel_crtc
->config
.has_dp_encoder
)
4630 intel_dp_set_m_n(intel_crtc
);
4632 intel_set_pipe_timings(intel_crtc
);
4634 /* pipesrc and dspsize control the size that is scaled from,
4635 * which should always be the user's requested size.
4637 I915_WRITE(DSPSIZE(plane
),
4638 ((intel_crtc
->config
.pipe_src_h
- 1) << 16) |
4639 (intel_crtc
->config
.pipe_src_w
- 1));
4640 I915_WRITE(DSPPOS(plane
), 0);
4642 i9xx_set_pipeconf(intel_crtc
);
4644 I915_WRITE(DSPCNTR(plane
), dspcntr
);
4645 POSTING_READ(DSPCNTR(plane
));
4647 dev_priv
->display
.update_primary_plane(crtc
, crtc
->primary
->fb
,
4650 intel_crtc
->active
= true;
4652 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, true);
4654 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4655 if (encoder
->pre_pll_enable
)
4656 encoder
->pre_pll_enable(encoder
);
4659 if (IS_CHERRYVIEW(dev
))
4660 chv_enable_pll(intel_crtc
);
4662 vlv_enable_pll(intel_crtc
);
4665 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4666 if (encoder
->pre_enable
)
4667 encoder
->pre_enable(encoder
);
4669 i9xx_pfit_enable(intel_crtc
);
4671 intel_crtc_load_lut(crtc
);
4673 intel_update_watermarks(crtc
);
4674 intel_enable_pipe(intel_crtc
);
4676 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4677 encoder
->enable(encoder
);
4679 intel_crtc_enable_planes(crtc
);
4681 /* Underruns don't raise interrupts, so check manually. */
4682 i9xx_check_fifo_underruns(dev
);
4685 static void i9xx_set_pll_dividers(struct intel_crtc
*crtc
)
4687 struct drm_device
*dev
= crtc
->base
.dev
;
4688 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4690 I915_WRITE(FP0(crtc
->pipe
), crtc
->config
.dpll_hw_state
.fp0
);
4691 I915_WRITE(FP1(crtc
->pipe
), crtc
->config
.dpll_hw_state
.fp1
);
4694 static void i9xx_crtc_enable(struct drm_crtc
*crtc
)
4696 struct drm_device
*dev
= crtc
->dev
;
4697 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4698 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4699 struct intel_encoder
*encoder
;
4700 int pipe
= intel_crtc
->pipe
;
4701 int plane
= intel_crtc
->plane
;
4704 WARN_ON(!crtc
->enabled
);
4706 if (intel_crtc
->active
)
4709 i9xx_set_pll_dividers(intel_crtc
);
4711 /* Set up the display plane register */
4712 dspcntr
= DISPPLANE_GAMMA_ENABLE
;
4715 dspcntr
&= ~DISPPLANE_SEL_PIPE_MASK
;
4717 dspcntr
|= DISPPLANE_SEL_PIPE_B
;
4719 if (intel_crtc
->config
.has_dp_encoder
)
4720 intel_dp_set_m_n(intel_crtc
);
4722 intel_set_pipe_timings(intel_crtc
);
4724 /* pipesrc and dspsize control the size that is scaled from,
4725 * which should always be the user's requested size.
4727 I915_WRITE(DSPSIZE(plane
),
4728 ((intel_crtc
->config
.pipe_src_h
- 1) << 16) |
4729 (intel_crtc
->config
.pipe_src_w
- 1));
4730 I915_WRITE(DSPPOS(plane
), 0);
4732 i9xx_set_pipeconf(intel_crtc
);
4734 I915_WRITE(DSPCNTR(plane
), dspcntr
);
4735 POSTING_READ(DSPCNTR(plane
));
4737 dev_priv
->display
.update_primary_plane(crtc
, crtc
->primary
->fb
,
4740 intel_crtc
->active
= true;
4743 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, true);
4745 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4746 if (encoder
->pre_enable
)
4747 encoder
->pre_enable(encoder
);
4749 i9xx_enable_pll(intel_crtc
);
4751 i9xx_pfit_enable(intel_crtc
);
4753 intel_crtc_load_lut(crtc
);
4755 intel_update_watermarks(crtc
);
4756 intel_enable_pipe(intel_crtc
);
4758 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4759 encoder
->enable(encoder
);
4761 intel_crtc_enable_planes(crtc
);
4764 * Gen2 reports pipe underruns whenever all planes are disabled.
4765 * So don't enable underrun reporting before at least some planes
4767 * FIXME: Need to fix the logic to work when we turn off all planes
4768 * but leave the pipe running.
4771 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, true);
4773 /* Underruns don't raise interrupts, so check manually. */
4774 i9xx_check_fifo_underruns(dev
);
4777 static void i9xx_pfit_disable(struct intel_crtc
*crtc
)
4779 struct drm_device
*dev
= crtc
->base
.dev
;
4780 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4782 if (!crtc
->config
.gmch_pfit
.control
)
4785 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
4787 DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n",
4788 I915_READ(PFIT_CONTROL
));
4789 I915_WRITE(PFIT_CONTROL
, 0);
4792 static void i9xx_crtc_disable(struct drm_crtc
*crtc
)
4794 struct drm_device
*dev
= crtc
->dev
;
4795 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4796 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4797 struct intel_encoder
*encoder
;
4798 int pipe
= intel_crtc
->pipe
;
4800 if (!intel_crtc
->active
)
4804 * Gen2 reports pipe underruns whenever all planes are disabled.
4805 * So diasble underrun reporting before all the planes get disabled.
4806 * FIXME: Need to fix the logic to work when we turn off all planes
4807 * but leave the pipe running.
4810 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, false);
4813 * Vblank time updates from the shadow to live plane control register
4814 * are blocked if the memory self-refresh mode is active at that
4815 * moment. So to make sure the plane gets truly disabled, disable
4816 * first the self-refresh mode. The self-refresh enable bit in turn
4817 * will be checked/applied by the HW only at the next frame start
4818 * event which is after the vblank start event, so we need to have a
4819 * wait-for-vblank between disabling the plane and the pipe.
4821 intel_set_memory_cxsr(dev_priv
, false);
4822 intel_crtc_disable_planes(crtc
);
4824 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4825 encoder
->disable(encoder
);
4828 * On gen2 planes are double buffered but the pipe isn't, so we must
4829 * wait for planes to fully turn off before disabling the pipe.
4830 * We also need to wait on all gmch platforms because of the
4831 * self-refresh mode constraint explained above.
4833 intel_wait_for_vblank(dev
, pipe
);
4835 intel_disable_pipe(dev_priv
, pipe
);
4837 i9xx_pfit_disable(intel_crtc
);
4839 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4840 if (encoder
->post_disable
)
4841 encoder
->post_disable(encoder
);
4843 if (!intel_pipe_has_type(crtc
, INTEL_OUTPUT_DSI
)) {
4844 if (IS_CHERRYVIEW(dev
))
4845 chv_disable_pll(dev_priv
, pipe
);
4846 else if (IS_VALLEYVIEW(dev
))
4847 vlv_disable_pll(dev_priv
, pipe
);
4849 i9xx_disable_pll(dev_priv
, pipe
);
4853 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, false);
4855 intel_crtc
->active
= false;
4856 intel_update_watermarks(crtc
);
4858 mutex_lock(&dev
->struct_mutex
);
4859 intel_update_fbc(dev
);
4860 mutex_unlock(&dev
->struct_mutex
);
4863 static void i9xx_crtc_off(struct drm_crtc
*crtc
)
4867 static void intel_crtc_update_sarea(struct drm_crtc
*crtc
,
4870 struct drm_device
*dev
= crtc
->dev
;
4871 struct drm_i915_master_private
*master_priv
;
4872 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4873 int pipe
= intel_crtc
->pipe
;
4875 if (!dev
->primary
->master
)
4878 master_priv
= dev
->primary
->master
->driver_priv
;
4879 if (!master_priv
->sarea_priv
)
4884 master_priv
->sarea_priv
->pipeA_w
= enabled
? crtc
->mode
.hdisplay
: 0;
4885 master_priv
->sarea_priv
->pipeA_h
= enabled
? crtc
->mode
.vdisplay
: 0;
4888 master_priv
->sarea_priv
->pipeB_w
= enabled
? crtc
->mode
.hdisplay
: 0;
4889 master_priv
->sarea_priv
->pipeB_h
= enabled
? crtc
->mode
.vdisplay
: 0;
4892 DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe
));
4897 /* Master function to enable/disable CRTC and corresponding power wells */
4898 void intel_crtc_control(struct drm_crtc
*crtc
, bool enable
)
4900 struct drm_device
*dev
= crtc
->dev
;
4901 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4902 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4903 enum intel_display_power_domain domain
;
4904 unsigned long domains
;
4907 if (!intel_crtc
->active
) {
4908 domains
= get_crtc_power_domains(crtc
);
4909 for_each_power_domain(domain
, domains
)
4910 intel_display_power_get(dev_priv
, domain
);
4911 intel_crtc
->enabled_power_domains
= domains
;
4913 dev_priv
->display
.crtc_enable(crtc
);
4916 if (intel_crtc
->active
) {
4917 dev_priv
->display
.crtc_disable(crtc
);
4919 domains
= intel_crtc
->enabled_power_domains
;
4920 for_each_power_domain(domain
, domains
)
4921 intel_display_power_put(dev_priv
, domain
);
4922 intel_crtc
->enabled_power_domains
= 0;
4928 * Sets the power management mode of the pipe and plane.
4930 void intel_crtc_update_dpms(struct drm_crtc
*crtc
)
4932 struct drm_device
*dev
= crtc
->dev
;
4933 struct intel_encoder
*intel_encoder
;
4934 bool enable
= false;
4936 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
)
4937 enable
|= intel_encoder
->connectors_active
;
4939 intel_crtc_control(crtc
, enable
);
4941 intel_crtc_update_sarea(crtc
, enable
);
4944 static void intel_crtc_disable(struct drm_crtc
*crtc
)
4946 struct drm_device
*dev
= crtc
->dev
;
4947 struct drm_connector
*connector
;
4948 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4949 struct drm_i915_gem_object
*old_obj
= intel_fb_obj(crtc
->primary
->fb
);
4950 enum pipe pipe
= to_intel_crtc(crtc
)->pipe
;
4952 /* crtc should still be enabled when we disable it. */
4953 WARN_ON(!crtc
->enabled
);
4955 dev_priv
->display
.crtc_disable(crtc
);
4956 intel_crtc_update_sarea(crtc
, false);
4957 dev_priv
->display
.off(crtc
);
4959 if (crtc
->primary
->fb
) {
4960 mutex_lock(&dev
->struct_mutex
);
4961 intel_unpin_fb_obj(old_obj
);
4962 i915_gem_track_fb(old_obj
, NULL
,
4963 INTEL_FRONTBUFFER_PRIMARY(pipe
));
4964 mutex_unlock(&dev
->struct_mutex
);
4965 crtc
->primary
->fb
= NULL
;
4968 /* Update computed state. */
4969 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
4970 if (!connector
->encoder
|| !connector
->encoder
->crtc
)
4973 if (connector
->encoder
->crtc
!= crtc
)
4976 connector
->dpms
= DRM_MODE_DPMS_OFF
;
4977 to_intel_encoder(connector
->encoder
)->connectors_active
= false;
4981 void intel_encoder_destroy(struct drm_encoder
*encoder
)
4983 struct intel_encoder
*intel_encoder
= to_intel_encoder(encoder
);
4985 drm_encoder_cleanup(encoder
);
4986 kfree(intel_encoder
);
4989 /* Simple dpms helper for encoders with just one connector, no cloning and only
4990 * one kind of off state. It clamps all !ON modes to fully OFF and changes the
4991 * state of the entire output pipe. */
4992 static void intel_encoder_dpms(struct intel_encoder
*encoder
, int mode
)
4994 if (mode
== DRM_MODE_DPMS_ON
) {
4995 encoder
->connectors_active
= true;
4997 intel_crtc_update_dpms(encoder
->base
.crtc
);
4999 encoder
->connectors_active
= false;
5001 intel_crtc_update_dpms(encoder
->base
.crtc
);
5005 /* Cross check the actual hw state with our own modeset state tracking (and it's
5006 * internal consistency). */
5007 static void intel_connector_check_state(struct intel_connector
*connector
)
5009 if (connector
->get_hw_state(connector
)) {
5010 struct intel_encoder
*encoder
= connector
->encoder
;
5011 struct drm_crtc
*crtc
;
5012 bool encoder_enabled
;
5015 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
5016 connector
->base
.base
.id
,
5017 connector
->base
.name
);
5019 /* there is no real hw state for MST connectors */
5020 if (connector
->mst_port
)
5023 WARN(connector
->base
.dpms
== DRM_MODE_DPMS_OFF
,
5024 "wrong connector dpms state\n");
5025 WARN(connector
->base
.encoder
!= &encoder
->base
,
5026 "active connector not linked to encoder\n");
5029 WARN(!encoder
->connectors_active
,
5030 "encoder->connectors_active not set\n");
5032 encoder_enabled
= encoder
->get_hw_state(encoder
, &pipe
);
5033 WARN(!encoder_enabled
, "encoder not enabled\n");
5034 if (WARN_ON(!encoder
->base
.crtc
))
5037 crtc
= encoder
->base
.crtc
;
5039 WARN(!crtc
->enabled
, "crtc not enabled\n");
5040 WARN(!to_intel_crtc(crtc
)->active
, "crtc not active\n");
5041 WARN(pipe
!= to_intel_crtc(crtc
)->pipe
,
5042 "encoder active on the wrong pipe\n");
5047 /* Even simpler default implementation, if there's really no special case to
5049 void intel_connector_dpms(struct drm_connector
*connector
, int mode
)
5051 /* All the simple cases only support two dpms states. */
5052 if (mode
!= DRM_MODE_DPMS_ON
)
5053 mode
= DRM_MODE_DPMS_OFF
;
5055 if (mode
== connector
->dpms
)
5058 connector
->dpms
= mode
;
5060 /* Only need to change hw state when actually enabled */
5061 if (connector
->encoder
)
5062 intel_encoder_dpms(to_intel_encoder(connector
->encoder
), mode
);
5064 intel_modeset_check_state(connector
->dev
);
5067 /* Simple connector->get_hw_state implementation for encoders that support only
5068 * one connector and no cloning and hence the encoder state determines the state
5069 * of the connector. */
5070 bool intel_connector_get_hw_state(struct intel_connector
*connector
)
5073 struct intel_encoder
*encoder
= connector
->encoder
;
5075 return encoder
->get_hw_state(encoder
, &pipe
);
5078 static bool ironlake_check_fdi_lanes(struct drm_device
*dev
, enum pipe pipe
,
5079 struct intel_crtc_config
*pipe_config
)
5081 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5082 struct intel_crtc
*pipe_B_crtc
=
5083 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[PIPE_B
]);
5085 DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n",
5086 pipe_name(pipe
), pipe_config
->fdi_lanes
);
5087 if (pipe_config
->fdi_lanes
> 4) {
5088 DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n",
5089 pipe_name(pipe
), pipe_config
->fdi_lanes
);
5093 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
5094 if (pipe_config
->fdi_lanes
> 2) {
5095 DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n",
5096 pipe_config
->fdi_lanes
);
5103 if (INTEL_INFO(dev
)->num_pipes
== 2)
5106 /* Ivybridge 3 pipe is really complicated */
5111 if (dev_priv
->pipe_to_crtc_mapping
[PIPE_C
]->enabled
&&
5112 pipe_config
->fdi_lanes
> 2) {
5113 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
5114 pipe_name(pipe
), pipe_config
->fdi_lanes
);
5119 if (!pipe_has_enabled_pch(pipe_B_crtc
) ||
5120 pipe_B_crtc
->config
.fdi_lanes
<= 2) {
5121 if (pipe_config
->fdi_lanes
> 2) {
5122 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
5123 pipe_name(pipe
), pipe_config
->fdi_lanes
);
5127 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
5137 static int ironlake_fdi_compute_config(struct intel_crtc
*intel_crtc
,
5138 struct intel_crtc_config
*pipe_config
)
5140 struct drm_device
*dev
= intel_crtc
->base
.dev
;
5141 struct drm_display_mode
*adjusted_mode
= &pipe_config
->adjusted_mode
;
5142 int lane
, link_bw
, fdi_dotclock
;
5143 bool setup_ok
, needs_recompute
= false;
5146 /* FDI is a binary signal running at ~2.7GHz, encoding
5147 * each output octet as 10 bits. The actual frequency
5148 * is stored as a divider into a 100MHz clock, and the
5149 * mode pixel clock is stored in units of 1KHz.
5150 * Hence the bw of each lane in terms of the mode signal
5153 link_bw
= intel_fdi_link_freq(dev
) * MHz(100)/KHz(1)/10;
5155 fdi_dotclock
= adjusted_mode
->crtc_clock
;
5157 lane
= ironlake_get_lanes_required(fdi_dotclock
, link_bw
,
5158 pipe_config
->pipe_bpp
);
5160 pipe_config
->fdi_lanes
= lane
;
5162 intel_link_compute_m_n(pipe_config
->pipe_bpp
, lane
, fdi_dotclock
,
5163 link_bw
, &pipe_config
->fdi_m_n
);
5165 setup_ok
= ironlake_check_fdi_lanes(intel_crtc
->base
.dev
,
5166 intel_crtc
->pipe
, pipe_config
);
5167 if (!setup_ok
&& pipe_config
->pipe_bpp
> 6*3) {
5168 pipe_config
->pipe_bpp
-= 2*3;
5169 DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n",
5170 pipe_config
->pipe_bpp
);
5171 needs_recompute
= true;
5172 pipe_config
->bw_constrained
= true;
5177 if (needs_recompute
)
5180 return setup_ok
? 0 : -EINVAL
;
5183 static void hsw_compute_ips_config(struct intel_crtc
*crtc
,
5184 struct intel_crtc_config
*pipe_config
)
5186 pipe_config
->ips_enabled
= i915
.enable_ips
&&
5187 hsw_crtc_supports_ips(crtc
) &&
5188 pipe_config
->pipe_bpp
<= 24;
5191 static int intel_crtc_compute_config(struct intel_crtc
*crtc
,
5192 struct intel_crtc_config
*pipe_config
)
5194 struct drm_device
*dev
= crtc
->base
.dev
;
5195 struct drm_display_mode
*adjusted_mode
= &pipe_config
->adjusted_mode
;
5197 /* FIXME should check pixel clock limits on all platforms */
5198 if (INTEL_INFO(dev
)->gen
< 4) {
5199 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5201 dev_priv
->display
.get_display_clock_speed(dev
);
5204 * Enable pixel doubling when the dot clock
5205 * is > 90% of the (display) core speed.
5207 * GDG double wide on either pipe,
5208 * otherwise pipe A only.
5210 if ((crtc
->pipe
== PIPE_A
|| IS_I915G(dev
)) &&
5211 adjusted_mode
->crtc_clock
> clock_limit
* 9 / 10) {
5213 pipe_config
->double_wide
= true;
5216 if (adjusted_mode
->crtc_clock
> clock_limit
* 9 / 10)
5221 * Pipe horizontal size must be even in:
5223 * - LVDS dual channel mode
5224 * - Double wide pipe
5226 if ((intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
) &&
5227 intel_is_dual_link_lvds(dev
)) || pipe_config
->double_wide
)
5228 pipe_config
->pipe_src_w
&= ~1;
5230 /* Cantiga+ cannot handle modes with a hsync front porch of 0.
5231 * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw.
5233 if ((INTEL_INFO(dev
)->gen
> 4 || IS_G4X(dev
)) &&
5234 adjusted_mode
->hsync_start
== adjusted_mode
->hdisplay
)
5237 if ((IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) && pipe_config
->pipe_bpp
> 10*3) {
5238 pipe_config
->pipe_bpp
= 10*3; /* 12bpc is gen5+ */
5239 } else if (INTEL_INFO(dev
)->gen
<= 4 && pipe_config
->pipe_bpp
> 8*3) {
5240 /* only a 8bpc pipe, with 6bpc dither through the panel fitter
5242 pipe_config
->pipe_bpp
= 8*3;
5246 hsw_compute_ips_config(crtc
, pipe_config
);
5249 * XXX: PCH/WRPLL clock sharing is done in ->mode_set, so make sure the
5250 * old clock survives for now.
5252 if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
) || HAS_DDI(dev
))
5253 pipe_config
->shared_dpll
= crtc
->config
.shared_dpll
;
5255 if (pipe_config
->has_pch_encoder
)
5256 return ironlake_fdi_compute_config(crtc
, pipe_config
);
5261 static int valleyview_get_display_clock_speed(struct drm_device
*dev
)
5263 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5264 int vco
= valleyview_get_vco(dev_priv
);
5268 mutex_lock(&dev_priv
->dpio_lock
);
5269 val
= vlv_cck_read(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
);
5270 mutex_unlock(&dev_priv
->dpio_lock
);
5272 divider
= val
& DISPLAY_FREQUENCY_VALUES
;
5274 WARN((val
& DISPLAY_FREQUENCY_STATUS
) !=
5275 (divider
<< DISPLAY_FREQUENCY_STATUS_SHIFT
),
5276 "cdclk change in progress\n");
5278 return DIV_ROUND_CLOSEST(vco
<< 1, divider
+ 1);
5281 static int i945_get_display_clock_speed(struct drm_device
*dev
)
5286 static int i915_get_display_clock_speed(struct drm_device
*dev
)
5291 static int i9xx_misc_get_display_clock_speed(struct drm_device
*dev
)
5296 static int pnv_get_display_clock_speed(struct drm_device
*dev
)
5300 pci_read_config_word(dev
->pdev
, GCFGC
, &gcfgc
);
5302 switch (gcfgc
& GC_DISPLAY_CLOCK_MASK
) {
5303 case GC_DISPLAY_CLOCK_267_MHZ_PNV
:
5305 case GC_DISPLAY_CLOCK_333_MHZ_PNV
:
5307 case GC_DISPLAY_CLOCK_444_MHZ_PNV
:
5309 case GC_DISPLAY_CLOCK_200_MHZ_PNV
:
5312 DRM_ERROR("Unknown pnv display core clock 0x%04x\n", gcfgc
);
5313 case GC_DISPLAY_CLOCK_133_MHZ_PNV
:
5315 case GC_DISPLAY_CLOCK_167_MHZ_PNV
:
5320 static int i915gm_get_display_clock_speed(struct drm_device
*dev
)
5324 pci_read_config_word(dev
->pdev
, GCFGC
, &gcfgc
);
5326 if (gcfgc
& GC_LOW_FREQUENCY_ENABLE
)
5329 switch (gcfgc
& GC_DISPLAY_CLOCK_MASK
) {
5330 case GC_DISPLAY_CLOCK_333_MHZ
:
5333 case GC_DISPLAY_CLOCK_190_200_MHZ
:
5339 static int i865_get_display_clock_speed(struct drm_device
*dev
)
5344 static int i855_get_display_clock_speed(struct drm_device
*dev
)
5347 /* Assume that the hardware is in the high speed state. This
5348 * should be the default.
5350 switch (hpllcc
& GC_CLOCK_CONTROL_MASK
) {
5351 case GC_CLOCK_133_200
:
5352 case GC_CLOCK_100_200
:
5354 case GC_CLOCK_166_250
:
5356 case GC_CLOCK_100_133
:
5360 /* Shouldn't happen */
5364 static int i830_get_display_clock_speed(struct drm_device
*dev
)
5370 intel_reduce_m_n_ratio(uint32_t *num
, uint32_t *den
)
5372 while (*num
> DATA_LINK_M_N_MASK
||
5373 *den
> DATA_LINK_M_N_MASK
) {
5379 static void compute_m_n(unsigned int m
, unsigned int n
,
5380 uint32_t *ret_m
, uint32_t *ret_n
)
5382 *ret_n
= min_t(unsigned int, roundup_pow_of_two(n
), DATA_LINK_N_MAX
);
5383 *ret_m
= div_u64((uint64_t) m
* *ret_n
, n
);
5384 intel_reduce_m_n_ratio(ret_m
, ret_n
);
5388 intel_link_compute_m_n(int bits_per_pixel
, int nlanes
,
5389 int pixel_clock
, int link_clock
,
5390 struct intel_link_m_n
*m_n
)
5394 compute_m_n(bits_per_pixel
* pixel_clock
,
5395 link_clock
* nlanes
* 8,
5396 &m_n
->gmch_m
, &m_n
->gmch_n
);
5398 compute_m_n(pixel_clock
, link_clock
,
5399 &m_n
->link_m
, &m_n
->link_n
);
5402 static inline bool intel_panel_use_ssc(struct drm_i915_private
*dev_priv
)
5404 if (i915
.panel_use_ssc
>= 0)
5405 return i915
.panel_use_ssc
!= 0;
5406 return dev_priv
->vbt
.lvds_use_ssc
5407 && !(dev_priv
->quirks
& QUIRK_LVDS_SSC_DISABLE
);
5410 static int i9xx_get_refclk(struct drm_crtc
*crtc
, int num_connectors
)
5412 struct drm_device
*dev
= crtc
->dev
;
5413 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5416 if (IS_VALLEYVIEW(dev
)) {
5418 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) &&
5419 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2) {
5420 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
5421 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk
);
5422 } else if (!IS_GEN2(dev
)) {
5431 static uint32_t pnv_dpll_compute_fp(struct dpll
*dpll
)
5433 return (1 << dpll
->n
) << 16 | dpll
->m2
;
5436 static uint32_t i9xx_dpll_compute_fp(struct dpll
*dpll
)
5438 return dpll
->n
<< 16 | dpll
->m1
<< 8 | dpll
->m2
;
5441 static void i9xx_update_pll_dividers(struct intel_crtc
*crtc
,
5442 intel_clock_t
*reduced_clock
)
5444 struct drm_device
*dev
= crtc
->base
.dev
;
5447 if (IS_PINEVIEW(dev
)) {
5448 fp
= pnv_dpll_compute_fp(&crtc
->config
.dpll
);
5450 fp2
= pnv_dpll_compute_fp(reduced_clock
);
5452 fp
= i9xx_dpll_compute_fp(&crtc
->config
.dpll
);
5454 fp2
= i9xx_dpll_compute_fp(reduced_clock
);
5457 crtc
->config
.dpll_hw_state
.fp0
= fp
;
5459 crtc
->lowfreq_avail
= false;
5460 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
) &&
5461 reduced_clock
&& i915
.powersave
) {
5462 crtc
->config
.dpll_hw_state
.fp1
= fp2
;
5463 crtc
->lowfreq_avail
= true;
5465 crtc
->config
.dpll_hw_state
.fp1
= fp
;
5469 static void vlv_pllb_recal_opamp(struct drm_i915_private
*dev_priv
, enum pipe
5475 * PLLB opamp always calibrates to max value of 0x3f, force enable it
5476 * and set it to a reasonable value instead.
5478 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW9(1));
5479 reg_val
&= 0xffffff00;
5480 reg_val
|= 0x00000030;
5481 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9(1), reg_val
);
5483 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_REF_DW13
);
5484 reg_val
&= 0x8cffffff;
5485 reg_val
= 0x8c000000;
5486 vlv_dpio_write(dev_priv
, pipe
, VLV_REF_DW13
, reg_val
);
5488 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW9(1));
5489 reg_val
&= 0xffffff00;
5490 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9(1), reg_val
);
5492 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_REF_DW13
);
5493 reg_val
&= 0x00ffffff;
5494 reg_val
|= 0xb0000000;
5495 vlv_dpio_write(dev_priv
, pipe
, VLV_REF_DW13
, reg_val
);
5498 static void intel_pch_transcoder_set_m_n(struct intel_crtc
*crtc
,
5499 struct intel_link_m_n
*m_n
)
5501 struct drm_device
*dev
= crtc
->base
.dev
;
5502 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5503 int pipe
= crtc
->pipe
;
5505 I915_WRITE(PCH_TRANS_DATA_M1(pipe
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
5506 I915_WRITE(PCH_TRANS_DATA_N1(pipe
), m_n
->gmch_n
);
5507 I915_WRITE(PCH_TRANS_LINK_M1(pipe
), m_n
->link_m
);
5508 I915_WRITE(PCH_TRANS_LINK_N1(pipe
), m_n
->link_n
);
5511 static void intel_cpu_transcoder_set_m_n(struct intel_crtc
*crtc
,
5512 struct intel_link_m_n
*m_n
,
5513 struct intel_link_m_n
*m2_n2
)
5515 struct drm_device
*dev
= crtc
->base
.dev
;
5516 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5517 int pipe
= crtc
->pipe
;
5518 enum transcoder transcoder
= crtc
->config
.cpu_transcoder
;
5520 if (INTEL_INFO(dev
)->gen
>= 5) {
5521 I915_WRITE(PIPE_DATA_M1(transcoder
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
5522 I915_WRITE(PIPE_DATA_N1(transcoder
), m_n
->gmch_n
);
5523 I915_WRITE(PIPE_LINK_M1(transcoder
), m_n
->link_m
);
5524 I915_WRITE(PIPE_LINK_N1(transcoder
), m_n
->link_n
);
5525 /* M2_N2 registers to be set only for gen < 8 (M2_N2 available
5526 * for gen < 8) and if DRRS is supported (to make sure the
5527 * registers are not unnecessarily accessed).
5529 if (m2_n2
&& INTEL_INFO(dev
)->gen
< 8 &&
5530 crtc
->config
.has_drrs
) {
5531 I915_WRITE(PIPE_DATA_M2(transcoder
),
5532 TU_SIZE(m2_n2
->tu
) | m2_n2
->gmch_m
);
5533 I915_WRITE(PIPE_DATA_N2(transcoder
), m2_n2
->gmch_n
);
5534 I915_WRITE(PIPE_LINK_M2(transcoder
), m2_n2
->link_m
);
5535 I915_WRITE(PIPE_LINK_N2(transcoder
), m2_n2
->link_n
);
5538 I915_WRITE(PIPE_DATA_M_G4X(pipe
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
5539 I915_WRITE(PIPE_DATA_N_G4X(pipe
), m_n
->gmch_n
);
5540 I915_WRITE(PIPE_LINK_M_G4X(pipe
), m_n
->link_m
);
5541 I915_WRITE(PIPE_LINK_N_G4X(pipe
), m_n
->link_n
);
5545 void intel_dp_set_m_n(struct intel_crtc
*crtc
)
5547 if (crtc
->config
.has_pch_encoder
)
5548 intel_pch_transcoder_set_m_n(crtc
, &crtc
->config
.dp_m_n
);
5550 intel_cpu_transcoder_set_m_n(crtc
, &crtc
->config
.dp_m_n
,
5551 &crtc
->config
.dp_m2_n2
);
5554 static void vlv_update_pll(struct intel_crtc
*crtc
)
5559 * Enable DPIO clock input. We should never disable the reference
5560 * clock for pipe B, since VGA hotplug / manual detection depends
5563 dpll
= DPLL_EXT_BUFFER_ENABLE_VLV
| DPLL_REFA_CLK_ENABLE_VLV
|
5564 DPLL_VGA_MODE_DIS
| DPLL_INTEGRATED_CLOCK_VLV
;
5565 /* We should never disable this, set it here for state tracking */
5566 if (crtc
->pipe
== PIPE_B
)
5567 dpll
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
5568 dpll
|= DPLL_VCO_ENABLE
;
5569 crtc
->config
.dpll_hw_state
.dpll
= dpll
;
5571 dpll_md
= (crtc
->config
.pixel_multiplier
- 1)
5572 << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
5573 crtc
->config
.dpll_hw_state
.dpll_md
= dpll_md
;
5576 static void vlv_prepare_pll(struct intel_crtc
*crtc
)
5578 struct drm_device
*dev
= crtc
->base
.dev
;
5579 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5580 int pipe
= crtc
->pipe
;
5582 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
;
5583 u32 coreclk
, reg_val
;
5585 mutex_lock(&dev_priv
->dpio_lock
);
5587 bestn
= crtc
->config
.dpll
.n
;
5588 bestm1
= crtc
->config
.dpll
.m1
;
5589 bestm2
= crtc
->config
.dpll
.m2
;
5590 bestp1
= crtc
->config
.dpll
.p1
;
5591 bestp2
= crtc
->config
.dpll
.p2
;
5593 /* See eDP HDMI DPIO driver vbios notes doc */
5595 /* PLL B needs special handling */
5597 vlv_pllb_recal_opamp(dev_priv
, pipe
);
5599 /* Set up Tx target for periodic Rcomp update */
5600 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9_BCAST
, 0x0100000f);
5602 /* Disable target IRef on PLL */
5603 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW8(pipe
));
5604 reg_val
&= 0x00ffffff;
5605 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW8(pipe
), reg_val
);
5607 /* Disable fast lock */
5608 vlv_dpio_write(dev_priv
, pipe
, VLV_CMN_DW0
, 0x610);
5610 /* Set idtafcrecal before PLL is enabled */
5611 mdiv
= ((bestm1
<< DPIO_M1DIV_SHIFT
) | (bestm2
& DPIO_M2DIV_MASK
));
5612 mdiv
|= ((bestp1
<< DPIO_P1_SHIFT
) | (bestp2
<< DPIO_P2_SHIFT
));
5613 mdiv
|= ((bestn
<< DPIO_N_SHIFT
));
5614 mdiv
|= (1 << DPIO_K_SHIFT
);
5617 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
5618 * but we don't support that).
5619 * Note: don't use the DAC post divider as it seems unstable.
5621 mdiv
|= (DPIO_POST_DIV_HDMIDP
<< DPIO_POST_DIV_SHIFT
);
5622 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW3(pipe
), mdiv
);
5624 mdiv
|= DPIO_ENABLE_CALIBRATION
;
5625 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW3(pipe
), mdiv
);
5627 /* Set HBR and RBR LPF coefficients */
5628 if (crtc
->config
.port_clock
== 162000 ||
5629 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_ANALOG
) ||
5630 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_HDMI
))
5631 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW10(pipe
),
5634 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW10(pipe
),
5637 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_EDP
) ||
5638 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DISPLAYPORT
)) {
5639 /* Use SSC source */
5641 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
5644 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
5646 } else { /* HDMI or VGA */
5647 /* Use bend source */
5649 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
5652 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
5656 coreclk
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW7(pipe
));
5657 coreclk
= (coreclk
& 0x0000ff00) | 0x01c00000;
5658 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DISPLAYPORT
) ||
5659 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_EDP
))
5660 coreclk
|= 0x01000000;
5661 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW7(pipe
), coreclk
);
5663 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW11(pipe
), 0x87871000);
5664 mutex_unlock(&dev_priv
->dpio_lock
);
5667 static void chv_update_pll(struct intel_crtc
*crtc
)
5669 struct drm_device
*dev
= crtc
->base
.dev
;
5670 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5671 int pipe
= crtc
->pipe
;
5672 int dpll_reg
= DPLL(crtc
->pipe
);
5673 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
5674 u32 loopfilter
, intcoeff
;
5675 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
, bestm2_frac
;
5678 crtc
->config
.dpll_hw_state
.dpll
= DPLL_SSC_REF_CLOCK_CHV
|
5679 DPLL_REFA_CLK_ENABLE_VLV
| DPLL_VGA_MODE_DIS
|
5682 crtc
->config
.dpll_hw_state
.dpll
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
5684 crtc
->config
.dpll_hw_state
.dpll_md
=
5685 (crtc
->config
.pixel_multiplier
- 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
5687 bestn
= crtc
->config
.dpll
.n
;
5688 bestm2_frac
= crtc
->config
.dpll
.m2
& 0x3fffff;
5689 bestm1
= crtc
->config
.dpll
.m1
;
5690 bestm2
= crtc
->config
.dpll
.m2
>> 22;
5691 bestp1
= crtc
->config
.dpll
.p1
;
5692 bestp2
= crtc
->config
.dpll
.p2
;
5695 * Enable Refclk and SSC
5697 I915_WRITE(dpll_reg
,
5698 crtc
->config
.dpll_hw_state
.dpll
& ~DPLL_VCO_ENABLE
);
5700 mutex_lock(&dev_priv
->dpio_lock
);
5702 /* p1 and p2 divider */
5703 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW13(port
),
5704 5 << DPIO_CHV_S1_DIV_SHIFT
|
5705 bestp1
<< DPIO_CHV_P1_DIV_SHIFT
|
5706 bestp2
<< DPIO_CHV_P2_DIV_SHIFT
|
5707 1 << DPIO_CHV_K_DIV_SHIFT
);
5709 /* Feedback post-divider - m2 */
5710 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW0(port
), bestm2
);
5712 /* Feedback refclk divider - n and m1 */
5713 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW1(port
),
5714 DPIO_CHV_M1_DIV_BY_2
|
5715 1 << DPIO_CHV_N_DIV_SHIFT
);
5717 /* M2 fraction division */
5718 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW2(port
), bestm2_frac
);
5720 /* M2 fraction division enable */
5721 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW3(port
),
5722 DPIO_CHV_FRAC_DIV_EN
|
5723 (2 << DPIO_CHV_FEEDFWD_GAIN_SHIFT
));
5726 refclk
= i9xx_get_refclk(&crtc
->base
, 0);
5727 loopfilter
= 5 << DPIO_CHV_PROP_COEFF_SHIFT
|
5728 2 << DPIO_CHV_GAIN_CTRL_SHIFT
;
5729 if (refclk
== 100000)
5731 else if (refclk
== 38400)
5735 loopfilter
|= intcoeff
<< DPIO_CHV_INT_COEFF_SHIFT
;
5736 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW6(port
), loopfilter
);
5739 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
),
5740 vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
)) |
5743 mutex_unlock(&dev_priv
->dpio_lock
);
5746 static void i9xx_update_pll(struct intel_crtc
*crtc
,
5747 intel_clock_t
*reduced_clock
,
5750 struct drm_device
*dev
= crtc
->base
.dev
;
5751 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5754 struct dpll
*clock
= &crtc
->config
.dpll
;
5756 i9xx_update_pll_dividers(crtc
, reduced_clock
);
5758 is_sdvo
= intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_SDVO
) ||
5759 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_HDMI
);
5761 dpll
= DPLL_VGA_MODE_DIS
;
5763 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
))
5764 dpll
|= DPLLB_MODE_LVDS
;
5766 dpll
|= DPLLB_MODE_DAC_SERIAL
;
5768 if (IS_I945G(dev
) || IS_I945GM(dev
) || IS_G33(dev
)) {
5769 dpll
|= (crtc
->config
.pixel_multiplier
- 1)
5770 << SDVO_MULTIPLIER_SHIFT_HIRES
;
5774 dpll
|= DPLL_SDVO_HIGH_SPEED
;
5776 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DISPLAYPORT
))
5777 dpll
|= DPLL_SDVO_HIGH_SPEED
;
5779 /* compute bitmask from p1 value */
5780 if (IS_PINEVIEW(dev
))
5781 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
;
5783 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
5784 if (IS_G4X(dev
) && reduced_clock
)
5785 dpll
|= (1 << (reduced_clock
->p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
5787 switch (clock
->p2
) {
5789 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
5792 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
5795 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
5798 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
5801 if (INTEL_INFO(dev
)->gen
>= 4)
5802 dpll
|= (6 << PLL_LOAD_PULSE_PHASE_SHIFT
);
5804 if (crtc
->config
.sdvo_tv_clock
)
5805 dpll
|= PLL_REF_INPUT_TVCLKINBC
;
5806 else if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
) &&
5807 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
5808 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
5810 dpll
|= PLL_REF_INPUT_DREFCLK
;
5812 dpll
|= DPLL_VCO_ENABLE
;
5813 crtc
->config
.dpll_hw_state
.dpll
= dpll
;
5815 if (INTEL_INFO(dev
)->gen
>= 4) {
5816 u32 dpll_md
= (crtc
->config
.pixel_multiplier
- 1)
5817 << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
5818 crtc
->config
.dpll_hw_state
.dpll_md
= dpll_md
;
5822 static void i8xx_update_pll(struct intel_crtc
*crtc
,
5823 intel_clock_t
*reduced_clock
,
5826 struct drm_device
*dev
= crtc
->base
.dev
;
5827 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5829 struct dpll
*clock
= &crtc
->config
.dpll
;
5831 i9xx_update_pll_dividers(crtc
, reduced_clock
);
5833 dpll
= DPLL_VGA_MODE_DIS
;
5835 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
)) {
5836 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
5839 dpll
|= PLL_P1_DIVIDE_BY_TWO
;
5841 dpll
|= (clock
->p1
- 2) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
5843 dpll
|= PLL_P2_DIVIDE_BY_4
;
5846 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DVO
))
5847 dpll
|= DPLL_DVO_2X_MODE
;
5849 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
) &&
5850 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
5851 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
5853 dpll
|= PLL_REF_INPUT_DREFCLK
;
5855 dpll
|= DPLL_VCO_ENABLE
;
5856 crtc
->config
.dpll_hw_state
.dpll
= dpll
;
5859 static void intel_set_pipe_timings(struct intel_crtc
*intel_crtc
)
5861 struct drm_device
*dev
= intel_crtc
->base
.dev
;
5862 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5863 enum pipe pipe
= intel_crtc
->pipe
;
5864 enum transcoder cpu_transcoder
= intel_crtc
->config
.cpu_transcoder
;
5865 struct drm_display_mode
*adjusted_mode
=
5866 &intel_crtc
->config
.adjusted_mode
;
5867 uint32_t crtc_vtotal
, crtc_vblank_end
;
5870 /* We need to be careful not to changed the adjusted mode, for otherwise
5871 * the hw state checker will get angry at the mismatch. */
5872 crtc_vtotal
= adjusted_mode
->crtc_vtotal
;
5873 crtc_vblank_end
= adjusted_mode
->crtc_vblank_end
;
5875 if (adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
) {
5876 /* the chip adds 2 halflines automatically */
5878 crtc_vblank_end
-= 1;
5880 if (intel_pipe_has_type(&intel_crtc
->base
, INTEL_OUTPUT_SDVO
))
5881 vsyncshift
= (adjusted_mode
->crtc_htotal
- 1) / 2;
5883 vsyncshift
= adjusted_mode
->crtc_hsync_start
-
5884 adjusted_mode
->crtc_htotal
/ 2;
5886 vsyncshift
+= adjusted_mode
->crtc_htotal
;
5889 if (INTEL_INFO(dev
)->gen
> 3)
5890 I915_WRITE(VSYNCSHIFT(cpu_transcoder
), vsyncshift
);
5892 I915_WRITE(HTOTAL(cpu_transcoder
),
5893 (adjusted_mode
->crtc_hdisplay
- 1) |
5894 ((adjusted_mode
->crtc_htotal
- 1) << 16));
5895 I915_WRITE(HBLANK(cpu_transcoder
),
5896 (adjusted_mode
->crtc_hblank_start
- 1) |
5897 ((adjusted_mode
->crtc_hblank_end
- 1) << 16));
5898 I915_WRITE(HSYNC(cpu_transcoder
),
5899 (adjusted_mode
->crtc_hsync_start
- 1) |
5900 ((adjusted_mode
->crtc_hsync_end
- 1) << 16));
5902 I915_WRITE(VTOTAL(cpu_transcoder
),
5903 (adjusted_mode
->crtc_vdisplay
- 1) |
5904 ((crtc_vtotal
- 1) << 16));
5905 I915_WRITE(VBLANK(cpu_transcoder
),
5906 (adjusted_mode
->crtc_vblank_start
- 1) |
5907 ((crtc_vblank_end
- 1) << 16));
5908 I915_WRITE(VSYNC(cpu_transcoder
),
5909 (adjusted_mode
->crtc_vsync_start
- 1) |
5910 ((adjusted_mode
->crtc_vsync_end
- 1) << 16));
5912 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
5913 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
5914 * documented on the DDI_FUNC_CTL register description, EDP Input Select
5916 if (IS_HASWELL(dev
) && cpu_transcoder
== TRANSCODER_EDP
&&
5917 (pipe
== PIPE_B
|| pipe
== PIPE_C
))
5918 I915_WRITE(VTOTAL(pipe
), I915_READ(VTOTAL(cpu_transcoder
)));
5920 /* pipesrc controls the size that is scaled from, which should
5921 * always be the user's requested size.
5923 I915_WRITE(PIPESRC(pipe
),
5924 ((intel_crtc
->config
.pipe_src_w
- 1) << 16) |
5925 (intel_crtc
->config
.pipe_src_h
- 1));
5928 static void intel_get_pipe_timings(struct intel_crtc
*crtc
,
5929 struct intel_crtc_config
*pipe_config
)
5931 struct drm_device
*dev
= crtc
->base
.dev
;
5932 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5933 enum transcoder cpu_transcoder
= pipe_config
->cpu_transcoder
;
5936 tmp
= I915_READ(HTOTAL(cpu_transcoder
));
5937 pipe_config
->adjusted_mode
.crtc_hdisplay
= (tmp
& 0xffff) + 1;
5938 pipe_config
->adjusted_mode
.crtc_htotal
= ((tmp
>> 16) & 0xffff) + 1;
5939 tmp
= I915_READ(HBLANK(cpu_transcoder
));
5940 pipe_config
->adjusted_mode
.crtc_hblank_start
= (tmp
& 0xffff) + 1;
5941 pipe_config
->adjusted_mode
.crtc_hblank_end
= ((tmp
>> 16) & 0xffff) + 1;
5942 tmp
= I915_READ(HSYNC(cpu_transcoder
));
5943 pipe_config
->adjusted_mode
.crtc_hsync_start
= (tmp
& 0xffff) + 1;
5944 pipe_config
->adjusted_mode
.crtc_hsync_end
= ((tmp
>> 16) & 0xffff) + 1;
5946 tmp
= I915_READ(VTOTAL(cpu_transcoder
));
5947 pipe_config
->adjusted_mode
.crtc_vdisplay
= (tmp
& 0xffff) + 1;
5948 pipe_config
->adjusted_mode
.crtc_vtotal
= ((tmp
>> 16) & 0xffff) + 1;
5949 tmp
= I915_READ(VBLANK(cpu_transcoder
));
5950 pipe_config
->adjusted_mode
.crtc_vblank_start
= (tmp
& 0xffff) + 1;
5951 pipe_config
->adjusted_mode
.crtc_vblank_end
= ((tmp
>> 16) & 0xffff) + 1;
5952 tmp
= I915_READ(VSYNC(cpu_transcoder
));
5953 pipe_config
->adjusted_mode
.crtc_vsync_start
= (tmp
& 0xffff) + 1;
5954 pipe_config
->adjusted_mode
.crtc_vsync_end
= ((tmp
>> 16) & 0xffff) + 1;
5956 if (I915_READ(PIPECONF(cpu_transcoder
)) & PIPECONF_INTERLACE_MASK
) {
5957 pipe_config
->adjusted_mode
.flags
|= DRM_MODE_FLAG_INTERLACE
;
5958 pipe_config
->adjusted_mode
.crtc_vtotal
+= 1;
5959 pipe_config
->adjusted_mode
.crtc_vblank_end
+= 1;
5962 tmp
= I915_READ(PIPESRC(crtc
->pipe
));
5963 pipe_config
->pipe_src_h
= (tmp
& 0xffff) + 1;
5964 pipe_config
->pipe_src_w
= ((tmp
>> 16) & 0xffff) + 1;
5966 pipe_config
->requested_mode
.vdisplay
= pipe_config
->pipe_src_h
;
5967 pipe_config
->requested_mode
.hdisplay
= pipe_config
->pipe_src_w
;
5970 void intel_mode_from_pipe_config(struct drm_display_mode
*mode
,
5971 struct intel_crtc_config
*pipe_config
)
5973 mode
->hdisplay
= pipe_config
->adjusted_mode
.crtc_hdisplay
;
5974 mode
->htotal
= pipe_config
->adjusted_mode
.crtc_htotal
;
5975 mode
->hsync_start
= pipe_config
->adjusted_mode
.crtc_hsync_start
;
5976 mode
->hsync_end
= pipe_config
->adjusted_mode
.crtc_hsync_end
;
5978 mode
->vdisplay
= pipe_config
->adjusted_mode
.crtc_vdisplay
;
5979 mode
->vtotal
= pipe_config
->adjusted_mode
.crtc_vtotal
;
5980 mode
->vsync_start
= pipe_config
->adjusted_mode
.crtc_vsync_start
;
5981 mode
->vsync_end
= pipe_config
->adjusted_mode
.crtc_vsync_end
;
5983 mode
->flags
= pipe_config
->adjusted_mode
.flags
;
5985 mode
->clock
= pipe_config
->adjusted_mode
.crtc_clock
;
5986 mode
->flags
|= pipe_config
->adjusted_mode
.flags
;
5989 static void i9xx_set_pipeconf(struct intel_crtc
*intel_crtc
)
5991 struct drm_device
*dev
= intel_crtc
->base
.dev
;
5992 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5997 if (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
&&
5998 I915_READ(PIPECONF(intel_crtc
->pipe
)) & PIPECONF_ENABLE
)
5999 pipeconf
|= PIPECONF_ENABLE
;
6001 if (intel_crtc
->config
.double_wide
)
6002 pipeconf
|= PIPECONF_DOUBLE_WIDE
;
6004 /* only g4x and later have fancy bpc/dither controls */
6005 if (IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) {
6006 /* Bspec claims that we can't use dithering for 30bpp pipes. */
6007 if (intel_crtc
->config
.dither
&& intel_crtc
->config
.pipe_bpp
!= 30)
6008 pipeconf
|= PIPECONF_DITHER_EN
|
6009 PIPECONF_DITHER_TYPE_SP
;
6011 switch (intel_crtc
->config
.pipe_bpp
) {
6013 pipeconf
|= PIPECONF_6BPC
;
6016 pipeconf
|= PIPECONF_8BPC
;
6019 pipeconf
|= PIPECONF_10BPC
;
6022 /* Case prevented by intel_choose_pipe_bpp_dither. */
6027 if (HAS_PIPE_CXSR(dev
)) {
6028 if (intel_crtc
->lowfreq_avail
) {
6029 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
6030 pipeconf
|= PIPECONF_CXSR_DOWNCLOCK
;
6032 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
6036 if (intel_crtc
->config
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
) {
6037 if (INTEL_INFO(dev
)->gen
< 4 ||
6038 intel_pipe_has_type(&intel_crtc
->base
, INTEL_OUTPUT_SDVO
))
6039 pipeconf
|= PIPECONF_INTERLACE_W_FIELD_INDICATION
;
6041 pipeconf
|= PIPECONF_INTERLACE_W_SYNC_SHIFT
;
6043 pipeconf
|= PIPECONF_PROGRESSIVE
;
6045 if (IS_VALLEYVIEW(dev
) && intel_crtc
->config
.limited_color_range
)
6046 pipeconf
|= PIPECONF_COLOR_RANGE_SELECT
;
6048 I915_WRITE(PIPECONF(intel_crtc
->pipe
), pipeconf
);
6049 POSTING_READ(PIPECONF(intel_crtc
->pipe
));
6052 static int i9xx_crtc_mode_set(struct drm_crtc
*crtc
,
6054 struct drm_framebuffer
*fb
)
6056 struct drm_device
*dev
= crtc
->dev
;
6057 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6058 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6059 int refclk
, num_connectors
= 0;
6060 intel_clock_t clock
, reduced_clock
;
6061 bool ok
, has_reduced_clock
= false;
6062 bool is_lvds
= false, is_dsi
= false;
6063 struct intel_encoder
*encoder
;
6064 const intel_limit_t
*limit
;
6066 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
6067 switch (encoder
->type
) {
6068 case INTEL_OUTPUT_LVDS
:
6071 case INTEL_OUTPUT_DSI
:
6082 if (!intel_crtc
->config
.clock_set
) {
6083 refclk
= i9xx_get_refclk(crtc
, num_connectors
);
6086 * Returns a set of divisors for the desired target clock with
6087 * the given refclk, or FALSE. The returned values represent
6088 * the clock equation: reflck * (5 * (m1 + 2) + (m2 + 2)) / (n +
6091 limit
= intel_limit(crtc
, refclk
);
6092 ok
= dev_priv
->display
.find_dpll(limit
, crtc
,
6093 intel_crtc
->config
.port_clock
,
6094 refclk
, NULL
, &clock
);
6096 DRM_ERROR("Couldn't find PLL settings for mode!\n");
6100 if (is_lvds
&& dev_priv
->lvds_downclock_avail
) {
6102 * Ensure we match the reduced clock's P to the target
6103 * clock. If the clocks don't match, we can't switch
6104 * the display clock by using the FP0/FP1. In such case
6105 * we will disable the LVDS downclock feature.
6108 dev_priv
->display
.find_dpll(limit
, crtc
,
6109 dev_priv
->lvds_downclock
,
6113 /* Compat-code for transition, will disappear. */
6114 intel_crtc
->config
.dpll
.n
= clock
.n
;
6115 intel_crtc
->config
.dpll
.m1
= clock
.m1
;
6116 intel_crtc
->config
.dpll
.m2
= clock
.m2
;
6117 intel_crtc
->config
.dpll
.p1
= clock
.p1
;
6118 intel_crtc
->config
.dpll
.p2
= clock
.p2
;
6122 i8xx_update_pll(intel_crtc
,
6123 has_reduced_clock
? &reduced_clock
: NULL
,
6125 } else if (IS_CHERRYVIEW(dev
)) {
6126 chv_update_pll(intel_crtc
);
6127 } else if (IS_VALLEYVIEW(dev
)) {
6128 vlv_update_pll(intel_crtc
);
6130 i9xx_update_pll(intel_crtc
,
6131 has_reduced_clock
? &reduced_clock
: NULL
,
6138 static void i9xx_get_pfit_config(struct intel_crtc
*crtc
,
6139 struct intel_crtc_config
*pipe_config
)
6141 struct drm_device
*dev
= crtc
->base
.dev
;
6142 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6145 if (INTEL_INFO(dev
)->gen
<= 3 && (IS_I830(dev
) || !IS_MOBILE(dev
)))
6148 tmp
= I915_READ(PFIT_CONTROL
);
6149 if (!(tmp
& PFIT_ENABLE
))
6152 /* Check whether the pfit is attached to our pipe. */
6153 if (INTEL_INFO(dev
)->gen
< 4) {
6154 if (crtc
->pipe
!= PIPE_B
)
6157 if ((tmp
& PFIT_PIPE_MASK
) != (crtc
->pipe
<< PFIT_PIPE_SHIFT
))
6161 pipe_config
->gmch_pfit
.control
= tmp
;
6162 pipe_config
->gmch_pfit
.pgm_ratios
= I915_READ(PFIT_PGM_RATIOS
);
6163 if (INTEL_INFO(dev
)->gen
< 5)
6164 pipe_config
->gmch_pfit
.lvds_border_bits
=
6165 I915_READ(LVDS
) & LVDS_BORDER_ENABLE
;
6168 static void vlv_crtc_clock_get(struct intel_crtc
*crtc
,
6169 struct intel_crtc_config
*pipe_config
)
6171 struct drm_device
*dev
= crtc
->base
.dev
;
6172 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6173 int pipe
= pipe_config
->cpu_transcoder
;
6174 intel_clock_t clock
;
6176 int refclk
= 100000;
6178 /* In case of MIPI DPLL will not even be used */
6179 if (!(pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
))
6182 mutex_lock(&dev_priv
->dpio_lock
);
6183 mdiv
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW3(pipe
));
6184 mutex_unlock(&dev_priv
->dpio_lock
);
6186 clock
.m1
= (mdiv
>> DPIO_M1DIV_SHIFT
) & 7;
6187 clock
.m2
= mdiv
& DPIO_M2DIV_MASK
;
6188 clock
.n
= (mdiv
>> DPIO_N_SHIFT
) & 0xf;
6189 clock
.p1
= (mdiv
>> DPIO_P1_SHIFT
) & 7;
6190 clock
.p2
= (mdiv
>> DPIO_P2_SHIFT
) & 0x1f;
6192 vlv_clock(refclk
, &clock
);
6194 /* clock.dot is the fast clock */
6195 pipe_config
->port_clock
= clock
.dot
/ 5;
6198 static void i9xx_get_plane_config(struct intel_crtc
*crtc
,
6199 struct intel_plane_config
*plane_config
)
6201 struct drm_device
*dev
= crtc
->base
.dev
;
6202 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6203 u32 val
, base
, offset
;
6204 int pipe
= crtc
->pipe
, plane
= crtc
->plane
;
6205 int fourcc
, pixel_format
;
6208 crtc
->base
.primary
->fb
= kzalloc(sizeof(struct intel_framebuffer
), GFP_KERNEL
);
6209 if (!crtc
->base
.primary
->fb
) {
6210 DRM_DEBUG_KMS("failed to alloc fb\n");
6214 val
= I915_READ(DSPCNTR(plane
));
6216 if (INTEL_INFO(dev
)->gen
>= 4)
6217 if (val
& DISPPLANE_TILED
)
6218 plane_config
->tiled
= true;
6220 pixel_format
= val
& DISPPLANE_PIXFORMAT_MASK
;
6221 fourcc
= intel_format_to_fourcc(pixel_format
);
6222 crtc
->base
.primary
->fb
->pixel_format
= fourcc
;
6223 crtc
->base
.primary
->fb
->bits_per_pixel
=
6224 drm_format_plane_cpp(fourcc
, 0) * 8;
6226 if (INTEL_INFO(dev
)->gen
>= 4) {
6227 if (plane_config
->tiled
)
6228 offset
= I915_READ(DSPTILEOFF(plane
));
6230 offset
= I915_READ(DSPLINOFF(plane
));
6231 base
= I915_READ(DSPSURF(plane
)) & 0xfffff000;
6233 base
= I915_READ(DSPADDR(plane
));
6235 plane_config
->base
= base
;
6237 val
= I915_READ(PIPESRC(pipe
));
6238 crtc
->base
.primary
->fb
->width
= ((val
>> 16) & 0xfff) + 1;
6239 crtc
->base
.primary
->fb
->height
= ((val
>> 0) & 0xfff) + 1;
6241 val
= I915_READ(DSPSTRIDE(pipe
));
6242 crtc
->base
.primary
->fb
->pitches
[0] = val
& 0xffffff80;
6244 aligned_height
= intel_align_height(dev
, crtc
->base
.primary
->fb
->height
,
6245 plane_config
->tiled
);
6247 plane_config
->size
= PAGE_ALIGN(crtc
->base
.primary
->fb
->pitches
[0] *
6250 DRM_DEBUG_KMS("pipe/plane %d/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
6251 pipe
, plane
, crtc
->base
.primary
->fb
->width
,
6252 crtc
->base
.primary
->fb
->height
,
6253 crtc
->base
.primary
->fb
->bits_per_pixel
, base
,
6254 crtc
->base
.primary
->fb
->pitches
[0],
6255 plane_config
->size
);
6259 static void chv_crtc_clock_get(struct intel_crtc
*crtc
,
6260 struct intel_crtc_config
*pipe_config
)
6262 struct drm_device
*dev
= crtc
->base
.dev
;
6263 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6264 int pipe
= pipe_config
->cpu_transcoder
;
6265 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
6266 intel_clock_t clock
;
6267 u32 cmn_dw13
, pll_dw0
, pll_dw1
, pll_dw2
;
6268 int refclk
= 100000;
6270 mutex_lock(&dev_priv
->dpio_lock
);
6271 cmn_dw13
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW13(port
));
6272 pll_dw0
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW0(port
));
6273 pll_dw1
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW1(port
));
6274 pll_dw2
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW2(port
));
6275 mutex_unlock(&dev_priv
->dpio_lock
);
6277 clock
.m1
= (pll_dw1
& 0x7) == DPIO_CHV_M1_DIV_BY_2
? 2 : 0;
6278 clock
.m2
= ((pll_dw0
& 0xff) << 22) | (pll_dw2
& 0x3fffff);
6279 clock
.n
= (pll_dw1
>> DPIO_CHV_N_DIV_SHIFT
) & 0xf;
6280 clock
.p1
= (cmn_dw13
>> DPIO_CHV_P1_DIV_SHIFT
) & 0x7;
6281 clock
.p2
= (cmn_dw13
>> DPIO_CHV_P2_DIV_SHIFT
) & 0x1f;
6283 chv_clock(refclk
, &clock
);
6285 /* clock.dot is the fast clock */
6286 pipe_config
->port_clock
= clock
.dot
/ 5;
6289 static bool i9xx_get_pipe_config(struct intel_crtc
*crtc
,
6290 struct intel_crtc_config
*pipe_config
)
6292 struct drm_device
*dev
= crtc
->base
.dev
;
6293 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6296 if (!intel_display_power_enabled(dev_priv
,
6297 POWER_DOMAIN_PIPE(crtc
->pipe
)))
6300 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
6301 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
6303 tmp
= I915_READ(PIPECONF(crtc
->pipe
));
6304 if (!(tmp
& PIPECONF_ENABLE
))
6307 if (IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) {
6308 switch (tmp
& PIPECONF_BPC_MASK
) {
6310 pipe_config
->pipe_bpp
= 18;
6313 pipe_config
->pipe_bpp
= 24;
6315 case PIPECONF_10BPC
:
6316 pipe_config
->pipe_bpp
= 30;
6323 if (IS_VALLEYVIEW(dev
) && (tmp
& PIPECONF_COLOR_RANGE_SELECT
))
6324 pipe_config
->limited_color_range
= true;
6326 if (INTEL_INFO(dev
)->gen
< 4)
6327 pipe_config
->double_wide
= tmp
& PIPECONF_DOUBLE_WIDE
;
6329 intel_get_pipe_timings(crtc
, pipe_config
);
6331 i9xx_get_pfit_config(crtc
, pipe_config
);
6333 if (INTEL_INFO(dev
)->gen
>= 4) {
6334 tmp
= I915_READ(DPLL_MD(crtc
->pipe
));
6335 pipe_config
->pixel_multiplier
=
6336 ((tmp
& DPLL_MD_UDI_MULTIPLIER_MASK
)
6337 >> DPLL_MD_UDI_MULTIPLIER_SHIFT
) + 1;
6338 pipe_config
->dpll_hw_state
.dpll_md
= tmp
;
6339 } else if (IS_I945G(dev
) || IS_I945GM(dev
) || IS_G33(dev
)) {
6340 tmp
= I915_READ(DPLL(crtc
->pipe
));
6341 pipe_config
->pixel_multiplier
=
6342 ((tmp
& SDVO_MULTIPLIER_MASK
)
6343 >> SDVO_MULTIPLIER_SHIFT_HIRES
) + 1;
6345 /* Note that on i915G/GM the pixel multiplier is in the sdvo
6346 * port and will be fixed up in the encoder->get_config
6348 pipe_config
->pixel_multiplier
= 1;
6350 pipe_config
->dpll_hw_state
.dpll
= I915_READ(DPLL(crtc
->pipe
));
6351 if (!IS_VALLEYVIEW(dev
)) {
6352 pipe_config
->dpll_hw_state
.fp0
= I915_READ(FP0(crtc
->pipe
));
6353 pipe_config
->dpll_hw_state
.fp1
= I915_READ(FP1(crtc
->pipe
));
6355 /* Mask out read-only status bits. */
6356 pipe_config
->dpll_hw_state
.dpll
&= ~(DPLL_LOCK_VLV
|
6357 DPLL_PORTC_READY_MASK
|
6358 DPLL_PORTB_READY_MASK
);
6361 if (IS_CHERRYVIEW(dev
))
6362 chv_crtc_clock_get(crtc
, pipe_config
);
6363 else if (IS_VALLEYVIEW(dev
))
6364 vlv_crtc_clock_get(crtc
, pipe_config
);
6366 i9xx_crtc_clock_get(crtc
, pipe_config
);
6371 static void ironlake_init_pch_refclk(struct drm_device
*dev
)
6373 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6374 struct drm_mode_config
*mode_config
= &dev
->mode_config
;
6375 struct intel_encoder
*encoder
;
6377 bool has_lvds
= false;
6378 bool has_cpu_edp
= false;
6379 bool has_panel
= false;
6380 bool has_ck505
= false;
6381 bool can_ssc
= false;
6383 /* We need to take the global config into account */
6384 list_for_each_entry(encoder
, &mode_config
->encoder_list
,
6386 switch (encoder
->type
) {
6387 case INTEL_OUTPUT_LVDS
:
6391 case INTEL_OUTPUT_EDP
:
6393 if (enc_to_dig_port(&encoder
->base
)->port
== PORT_A
)
6399 if (HAS_PCH_IBX(dev
)) {
6400 has_ck505
= dev_priv
->vbt
.display_clock_mode
;
6401 can_ssc
= has_ck505
;
6407 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n",
6408 has_panel
, has_lvds
, has_ck505
);
6410 /* Ironlake: try to setup display ref clock before DPLL
6411 * enabling. This is only under driver's control after
6412 * PCH B stepping, previous chipset stepping should be
6413 * ignoring this setting.
6415 val
= I915_READ(PCH_DREF_CONTROL
);
6417 /* As we must carefully and slowly disable/enable each source in turn,
6418 * compute the final state we want first and check if we need to
6419 * make any changes at all.
6422 final
&= ~DREF_NONSPREAD_SOURCE_MASK
;
6424 final
|= DREF_NONSPREAD_CK505_ENABLE
;
6426 final
|= DREF_NONSPREAD_SOURCE_ENABLE
;
6428 final
&= ~DREF_SSC_SOURCE_MASK
;
6429 final
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
6430 final
&= ~DREF_SSC1_ENABLE
;
6433 final
|= DREF_SSC_SOURCE_ENABLE
;
6435 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
6436 final
|= DREF_SSC1_ENABLE
;
6439 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
6440 final
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
6442 final
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
6444 final
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
6446 final
|= DREF_SSC_SOURCE_DISABLE
;
6447 final
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
6453 /* Always enable nonspread source */
6454 val
&= ~DREF_NONSPREAD_SOURCE_MASK
;
6457 val
|= DREF_NONSPREAD_CK505_ENABLE
;
6459 val
|= DREF_NONSPREAD_SOURCE_ENABLE
;
6462 val
&= ~DREF_SSC_SOURCE_MASK
;
6463 val
|= DREF_SSC_SOURCE_ENABLE
;
6465 /* SSC must be turned on before enabling the CPU output */
6466 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
6467 DRM_DEBUG_KMS("Using SSC on panel\n");
6468 val
|= DREF_SSC1_ENABLE
;
6470 val
&= ~DREF_SSC1_ENABLE
;
6472 /* Get SSC going before enabling the outputs */
6473 I915_WRITE(PCH_DREF_CONTROL
, val
);
6474 POSTING_READ(PCH_DREF_CONTROL
);
6477 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
6479 /* Enable CPU source on CPU attached eDP */
6481 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
6482 DRM_DEBUG_KMS("Using SSC on eDP\n");
6483 val
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
6485 val
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
6487 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
6489 I915_WRITE(PCH_DREF_CONTROL
, val
);
6490 POSTING_READ(PCH_DREF_CONTROL
);
6493 DRM_DEBUG_KMS("Disabling SSC entirely\n");
6495 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
6497 /* Turn off CPU output */
6498 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
6500 I915_WRITE(PCH_DREF_CONTROL
, val
);
6501 POSTING_READ(PCH_DREF_CONTROL
);
6504 /* Turn off the SSC source */
6505 val
&= ~DREF_SSC_SOURCE_MASK
;
6506 val
|= DREF_SSC_SOURCE_DISABLE
;
6509 val
&= ~DREF_SSC1_ENABLE
;
6511 I915_WRITE(PCH_DREF_CONTROL
, val
);
6512 POSTING_READ(PCH_DREF_CONTROL
);
6516 BUG_ON(val
!= final
);
6519 static void lpt_reset_fdi_mphy(struct drm_i915_private
*dev_priv
)
6523 tmp
= I915_READ(SOUTH_CHICKEN2
);
6524 tmp
|= FDI_MPHY_IOSFSB_RESET_CTL
;
6525 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
6527 if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2
) &
6528 FDI_MPHY_IOSFSB_RESET_STATUS
, 100))
6529 DRM_ERROR("FDI mPHY reset assert timeout\n");
6531 tmp
= I915_READ(SOUTH_CHICKEN2
);
6532 tmp
&= ~FDI_MPHY_IOSFSB_RESET_CTL
;
6533 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
6535 if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2
) &
6536 FDI_MPHY_IOSFSB_RESET_STATUS
) == 0, 100))
6537 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
6540 /* WaMPhyProgramming:hsw */
6541 static void lpt_program_fdi_mphy(struct drm_i915_private
*dev_priv
)
6545 tmp
= intel_sbi_read(dev_priv
, 0x8008, SBI_MPHY
);
6546 tmp
&= ~(0xFF << 24);
6547 tmp
|= (0x12 << 24);
6548 intel_sbi_write(dev_priv
, 0x8008, tmp
, SBI_MPHY
);
6550 tmp
= intel_sbi_read(dev_priv
, 0x2008, SBI_MPHY
);
6552 intel_sbi_write(dev_priv
, 0x2008, tmp
, SBI_MPHY
);
6554 tmp
= intel_sbi_read(dev_priv
, 0x2108, SBI_MPHY
);
6556 intel_sbi_write(dev_priv
, 0x2108, tmp
, SBI_MPHY
);
6558 tmp
= intel_sbi_read(dev_priv
, 0x206C, SBI_MPHY
);
6559 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
6560 intel_sbi_write(dev_priv
, 0x206C, tmp
, SBI_MPHY
);
6562 tmp
= intel_sbi_read(dev_priv
, 0x216C, SBI_MPHY
);
6563 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
6564 intel_sbi_write(dev_priv
, 0x216C, tmp
, SBI_MPHY
);
6566 tmp
= intel_sbi_read(dev_priv
, 0x2080, SBI_MPHY
);
6569 intel_sbi_write(dev_priv
, 0x2080, tmp
, SBI_MPHY
);
6571 tmp
= intel_sbi_read(dev_priv
, 0x2180, SBI_MPHY
);
6574 intel_sbi_write(dev_priv
, 0x2180, tmp
, SBI_MPHY
);
6576 tmp
= intel_sbi_read(dev_priv
, 0x208C, SBI_MPHY
);
6579 intel_sbi_write(dev_priv
, 0x208C, tmp
, SBI_MPHY
);
6581 tmp
= intel_sbi_read(dev_priv
, 0x218C, SBI_MPHY
);
6584 intel_sbi_write(dev_priv
, 0x218C, tmp
, SBI_MPHY
);
6586 tmp
= intel_sbi_read(dev_priv
, 0x2098, SBI_MPHY
);
6587 tmp
&= ~(0xFF << 16);
6588 tmp
|= (0x1C << 16);
6589 intel_sbi_write(dev_priv
, 0x2098, tmp
, SBI_MPHY
);
6591 tmp
= intel_sbi_read(dev_priv
, 0x2198, SBI_MPHY
);
6592 tmp
&= ~(0xFF << 16);
6593 tmp
|= (0x1C << 16);
6594 intel_sbi_write(dev_priv
, 0x2198, tmp
, SBI_MPHY
);
6596 tmp
= intel_sbi_read(dev_priv
, 0x20C4, SBI_MPHY
);
6598 intel_sbi_write(dev_priv
, 0x20C4, tmp
, SBI_MPHY
);
6600 tmp
= intel_sbi_read(dev_priv
, 0x21C4, SBI_MPHY
);
6602 intel_sbi_write(dev_priv
, 0x21C4, tmp
, SBI_MPHY
);
6604 tmp
= intel_sbi_read(dev_priv
, 0x20EC, SBI_MPHY
);
6605 tmp
&= ~(0xF << 28);
6607 intel_sbi_write(dev_priv
, 0x20EC, tmp
, SBI_MPHY
);
6609 tmp
= intel_sbi_read(dev_priv
, 0x21EC, SBI_MPHY
);
6610 tmp
&= ~(0xF << 28);
6612 intel_sbi_write(dev_priv
, 0x21EC, tmp
, SBI_MPHY
);
6615 /* Implements 3 different sequences from BSpec chapter "Display iCLK
6616 * Programming" based on the parameters passed:
6617 * - Sequence to enable CLKOUT_DP
6618 * - Sequence to enable CLKOUT_DP without spread
6619 * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O
6621 static void lpt_enable_clkout_dp(struct drm_device
*dev
, bool with_spread
,
6624 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6627 if (WARN(with_fdi
&& !with_spread
, "FDI requires downspread\n"))
6629 if (WARN(dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
&&
6630 with_fdi
, "LP PCH doesn't have FDI\n"))
6633 mutex_lock(&dev_priv
->dpio_lock
);
6635 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
6636 tmp
&= ~SBI_SSCCTL_DISABLE
;
6637 tmp
|= SBI_SSCCTL_PATHALT
;
6638 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
6643 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
6644 tmp
&= ~SBI_SSCCTL_PATHALT
;
6645 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
6648 lpt_reset_fdi_mphy(dev_priv
);
6649 lpt_program_fdi_mphy(dev_priv
);
6653 reg
= (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) ?
6654 SBI_GEN0
: SBI_DBUFF0
;
6655 tmp
= intel_sbi_read(dev_priv
, reg
, SBI_ICLK
);
6656 tmp
|= SBI_GEN0_CFG_BUFFENABLE_DISABLE
;
6657 intel_sbi_write(dev_priv
, reg
, tmp
, SBI_ICLK
);
6659 mutex_unlock(&dev_priv
->dpio_lock
);
6662 /* Sequence to disable CLKOUT_DP */
6663 static void lpt_disable_clkout_dp(struct drm_device
*dev
)
6665 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6668 mutex_lock(&dev_priv
->dpio_lock
);
6670 reg
= (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) ?
6671 SBI_GEN0
: SBI_DBUFF0
;
6672 tmp
= intel_sbi_read(dev_priv
, reg
, SBI_ICLK
);
6673 tmp
&= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE
;
6674 intel_sbi_write(dev_priv
, reg
, tmp
, SBI_ICLK
);
6676 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
6677 if (!(tmp
& SBI_SSCCTL_DISABLE
)) {
6678 if (!(tmp
& SBI_SSCCTL_PATHALT
)) {
6679 tmp
|= SBI_SSCCTL_PATHALT
;
6680 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
6683 tmp
|= SBI_SSCCTL_DISABLE
;
6684 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
6687 mutex_unlock(&dev_priv
->dpio_lock
);
6690 static void lpt_init_pch_refclk(struct drm_device
*dev
)
6692 struct drm_mode_config
*mode_config
= &dev
->mode_config
;
6693 struct intel_encoder
*encoder
;
6694 bool has_vga
= false;
6696 list_for_each_entry(encoder
, &mode_config
->encoder_list
, base
.head
) {
6697 switch (encoder
->type
) {
6698 case INTEL_OUTPUT_ANALOG
:
6705 lpt_enable_clkout_dp(dev
, true, true);
6707 lpt_disable_clkout_dp(dev
);
6711 * Initialize reference clocks when the driver loads
6713 void intel_init_pch_refclk(struct drm_device
*dev
)
6715 if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
6716 ironlake_init_pch_refclk(dev
);
6717 else if (HAS_PCH_LPT(dev
))
6718 lpt_init_pch_refclk(dev
);
6721 static int ironlake_get_refclk(struct drm_crtc
*crtc
)
6723 struct drm_device
*dev
= crtc
->dev
;
6724 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6725 struct intel_encoder
*encoder
;
6726 int num_connectors
= 0;
6727 bool is_lvds
= false;
6729 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
6730 switch (encoder
->type
) {
6731 case INTEL_OUTPUT_LVDS
:
6738 if (is_lvds
&& intel_panel_use_ssc(dev_priv
) && num_connectors
< 2) {
6739 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n",
6740 dev_priv
->vbt
.lvds_ssc_freq
);
6741 return dev_priv
->vbt
.lvds_ssc_freq
;
6747 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
)
6749 struct drm_i915_private
*dev_priv
= crtc
->dev
->dev_private
;
6750 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6751 int pipe
= intel_crtc
->pipe
;
6756 switch (intel_crtc
->config
.pipe_bpp
) {
6758 val
|= PIPECONF_6BPC
;
6761 val
|= PIPECONF_8BPC
;
6764 val
|= PIPECONF_10BPC
;
6767 val
|= PIPECONF_12BPC
;
6770 /* Case prevented by intel_choose_pipe_bpp_dither. */
6774 if (intel_crtc
->config
.dither
)
6775 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
6777 if (intel_crtc
->config
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
6778 val
|= PIPECONF_INTERLACED_ILK
;
6780 val
|= PIPECONF_PROGRESSIVE
;
6782 if (intel_crtc
->config
.limited_color_range
)
6783 val
|= PIPECONF_COLOR_RANGE_SELECT
;
6785 I915_WRITE(PIPECONF(pipe
), val
);
6786 POSTING_READ(PIPECONF(pipe
));
6790 * Set up the pipe CSC unit.
6792 * Currently only full range RGB to limited range RGB conversion
6793 * is supported, but eventually this should handle various
6794 * RGB<->YCbCr scenarios as well.
6796 static void intel_set_pipe_csc(struct drm_crtc
*crtc
)
6798 struct drm_device
*dev
= crtc
->dev
;
6799 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6800 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6801 int pipe
= intel_crtc
->pipe
;
6802 uint16_t coeff
= 0x7800; /* 1.0 */
6805 * TODO: Check what kind of values actually come out of the pipe
6806 * with these coeff/postoff values and adjust to get the best
6807 * accuracy. Perhaps we even need to take the bpc value into
6811 if (intel_crtc
->config
.limited_color_range
)
6812 coeff
= ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */
6815 * GY/GU and RY/RU should be the other way around according
6816 * to BSpec, but reality doesn't agree. Just set them up in
6817 * a way that results in the correct picture.
6819 I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe
), coeff
<< 16);
6820 I915_WRITE(PIPE_CSC_COEFF_BY(pipe
), 0);
6822 I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe
), coeff
);
6823 I915_WRITE(PIPE_CSC_COEFF_BU(pipe
), 0);
6825 I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe
), 0);
6826 I915_WRITE(PIPE_CSC_COEFF_BV(pipe
), coeff
<< 16);
6828 I915_WRITE(PIPE_CSC_PREOFF_HI(pipe
), 0);
6829 I915_WRITE(PIPE_CSC_PREOFF_ME(pipe
), 0);
6830 I915_WRITE(PIPE_CSC_PREOFF_LO(pipe
), 0);
6832 if (INTEL_INFO(dev
)->gen
> 6) {
6833 uint16_t postoff
= 0;
6835 if (intel_crtc
->config
.limited_color_range
)
6836 postoff
= (16 * (1 << 12) / 255) & 0x1fff;
6838 I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe
), postoff
);
6839 I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe
), postoff
);
6840 I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe
), postoff
);
6842 I915_WRITE(PIPE_CSC_MODE(pipe
), 0);
6844 uint32_t mode
= CSC_MODE_YUV_TO_RGB
;
6846 if (intel_crtc
->config
.limited_color_range
)
6847 mode
|= CSC_BLACK_SCREEN_OFFSET
;
6849 I915_WRITE(PIPE_CSC_MODE(pipe
), mode
);
6853 static void haswell_set_pipeconf(struct drm_crtc
*crtc
)
6855 struct drm_device
*dev
= crtc
->dev
;
6856 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6857 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6858 enum pipe pipe
= intel_crtc
->pipe
;
6859 enum transcoder cpu_transcoder
= intel_crtc
->config
.cpu_transcoder
;
6864 if (IS_HASWELL(dev
) && intel_crtc
->config
.dither
)
6865 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
6867 if (intel_crtc
->config
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
6868 val
|= PIPECONF_INTERLACED_ILK
;
6870 val
|= PIPECONF_PROGRESSIVE
;
6872 I915_WRITE(PIPECONF(cpu_transcoder
), val
);
6873 POSTING_READ(PIPECONF(cpu_transcoder
));
6875 I915_WRITE(GAMMA_MODE(intel_crtc
->pipe
), GAMMA_MODE_MODE_8BIT
);
6876 POSTING_READ(GAMMA_MODE(intel_crtc
->pipe
));
6878 if (IS_BROADWELL(dev
)) {
6881 switch (intel_crtc
->config
.pipe_bpp
) {
6883 val
|= PIPEMISC_DITHER_6_BPC
;
6886 val
|= PIPEMISC_DITHER_8_BPC
;
6889 val
|= PIPEMISC_DITHER_10_BPC
;
6892 val
|= PIPEMISC_DITHER_12_BPC
;
6895 /* Case prevented by pipe_config_set_bpp. */
6899 if (intel_crtc
->config
.dither
)
6900 val
|= PIPEMISC_DITHER_ENABLE
| PIPEMISC_DITHER_TYPE_SP
;
6902 I915_WRITE(PIPEMISC(pipe
), val
);
6906 static bool ironlake_compute_clocks(struct drm_crtc
*crtc
,
6907 intel_clock_t
*clock
,
6908 bool *has_reduced_clock
,
6909 intel_clock_t
*reduced_clock
)
6911 struct drm_device
*dev
= crtc
->dev
;
6912 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6913 struct intel_encoder
*intel_encoder
;
6915 const intel_limit_t
*limit
;
6916 bool ret
, is_lvds
= false;
6918 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
) {
6919 switch (intel_encoder
->type
) {
6920 case INTEL_OUTPUT_LVDS
:
6926 refclk
= ironlake_get_refclk(crtc
);
6929 * Returns a set of divisors for the desired target clock with the given
6930 * refclk, or FALSE. The returned values represent the clock equation:
6931 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
6933 limit
= intel_limit(crtc
, refclk
);
6934 ret
= dev_priv
->display
.find_dpll(limit
, crtc
,
6935 to_intel_crtc(crtc
)->config
.port_clock
,
6936 refclk
, NULL
, clock
);
6940 if (is_lvds
&& dev_priv
->lvds_downclock_avail
) {
6942 * Ensure we match the reduced clock's P to the target clock.
6943 * If the clocks don't match, we can't switch the display clock
6944 * by using the FP0/FP1. In such case we will disable the LVDS
6945 * downclock feature.
6947 *has_reduced_clock
=
6948 dev_priv
->display
.find_dpll(limit
, crtc
,
6949 dev_priv
->lvds_downclock
,
6957 int ironlake_get_lanes_required(int target_clock
, int link_bw
, int bpp
)
6960 * Account for spread spectrum to avoid
6961 * oversubscribing the link. Max center spread
6962 * is 2.5%; use 5% for safety's sake.
6964 u32 bps
= target_clock
* bpp
* 21 / 20;
6965 return DIV_ROUND_UP(bps
, link_bw
* 8);
6968 static bool ironlake_needs_fb_cb_tune(struct dpll
*dpll
, int factor
)
6970 return i9xx_dpll_compute_m(dpll
) < factor
* dpll
->n
;
6973 static uint32_t ironlake_compute_dpll(struct intel_crtc
*intel_crtc
,
6975 intel_clock_t
*reduced_clock
, u32
*fp2
)
6977 struct drm_crtc
*crtc
= &intel_crtc
->base
;
6978 struct drm_device
*dev
= crtc
->dev
;
6979 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6980 struct intel_encoder
*intel_encoder
;
6982 int factor
, num_connectors
= 0;
6983 bool is_lvds
= false, is_sdvo
= false;
6985 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
) {
6986 switch (intel_encoder
->type
) {
6987 case INTEL_OUTPUT_LVDS
:
6990 case INTEL_OUTPUT_SDVO
:
6991 case INTEL_OUTPUT_HDMI
:
6999 /* Enable autotuning of the PLL clock (if permissible) */
7002 if ((intel_panel_use_ssc(dev_priv
) &&
7003 dev_priv
->vbt
.lvds_ssc_freq
== 100000) ||
7004 (HAS_PCH_IBX(dev
) && intel_is_dual_link_lvds(dev
)))
7006 } else if (intel_crtc
->config
.sdvo_tv_clock
)
7009 if (ironlake_needs_fb_cb_tune(&intel_crtc
->config
.dpll
, factor
))
7012 if (fp2
&& (reduced_clock
->m
< factor
* reduced_clock
->n
))
7018 dpll
|= DPLLB_MODE_LVDS
;
7020 dpll
|= DPLLB_MODE_DAC_SERIAL
;
7022 dpll
|= (intel_crtc
->config
.pixel_multiplier
- 1)
7023 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
;
7026 dpll
|= DPLL_SDVO_HIGH_SPEED
;
7027 if (intel_crtc
->config
.has_dp_encoder
)
7028 dpll
|= DPLL_SDVO_HIGH_SPEED
;
7030 /* compute bitmask from p1 value */
7031 dpll
|= (1 << (intel_crtc
->config
.dpll
.p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
7033 dpll
|= (1 << (intel_crtc
->config
.dpll
.p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
7035 switch (intel_crtc
->config
.dpll
.p2
) {
7037 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
7040 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
7043 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
7046 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
7050 if (is_lvds
&& intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
7051 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
7053 dpll
|= PLL_REF_INPUT_DREFCLK
;
7055 return dpll
| DPLL_VCO_ENABLE
;
7058 static int ironlake_crtc_mode_set(struct drm_crtc
*crtc
,
7060 struct drm_framebuffer
*fb
)
7062 struct drm_device
*dev
= crtc
->dev
;
7063 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7064 int num_connectors
= 0;
7065 intel_clock_t clock
, reduced_clock
;
7066 u32 dpll
= 0, fp
= 0, fp2
= 0;
7067 bool ok
, has_reduced_clock
= false;
7068 bool is_lvds
= false;
7069 struct intel_encoder
*encoder
;
7070 struct intel_shared_dpll
*pll
;
7072 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
7073 switch (encoder
->type
) {
7074 case INTEL_OUTPUT_LVDS
:
7082 WARN(!(HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
)),
7083 "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev
));
7085 ok
= ironlake_compute_clocks(crtc
, &clock
,
7086 &has_reduced_clock
, &reduced_clock
);
7087 if (!ok
&& !intel_crtc
->config
.clock_set
) {
7088 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7091 /* Compat-code for transition, will disappear. */
7092 if (!intel_crtc
->config
.clock_set
) {
7093 intel_crtc
->config
.dpll
.n
= clock
.n
;
7094 intel_crtc
->config
.dpll
.m1
= clock
.m1
;
7095 intel_crtc
->config
.dpll
.m2
= clock
.m2
;
7096 intel_crtc
->config
.dpll
.p1
= clock
.p1
;
7097 intel_crtc
->config
.dpll
.p2
= clock
.p2
;
7100 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
7101 if (intel_crtc
->config
.has_pch_encoder
) {
7102 fp
= i9xx_dpll_compute_fp(&intel_crtc
->config
.dpll
);
7103 if (has_reduced_clock
)
7104 fp2
= i9xx_dpll_compute_fp(&reduced_clock
);
7106 dpll
= ironlake_compute_dpll(intel_crtc
,
7107 &fp
, &reduced_clock
,
7108 has_reduced_clock
? &fp2
: NULL
);
7110 intel_crtc
->config
.dpll_hw_state
.dpll
= dpll
;
7111 intel_crtc
->config
.dpll_hw_state
.fp0
= fp
;
7112 if (has_reduced_clock
)
7113 intel_crtc
->config
.dpll_hw_state
.fp1
= fp2
;
7115 intel_crtc
->config
.dpll_hw_state
.fp1
= fp
;
7117 pll
= intel_get_shared_dpll(intel_crtc
);
7119 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
7120 pipe_name(intel_crtc
->pipe
));
7124 intel_put_shared_dpll(intel_crtc
);
7126 if (is_lvds
&& has_reduced_clock
&& i915
.powersave
)
7127 intel_crtc
->lowfreq_avail
= true;
7129 intel_crtc
->lowfreq_avail
= false;
7134 static void intel_pch_transcoder_get_m_n(struct intel_crtc
*crtc
,
7135 struct intel_link_m_n
*m_n
)
7137 struct drm_device
*dev
= crtc
->base
.dev
;
7138 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7139 enum pipe pipe
= crtc
->pipe
;
7141 m_n
->link_m
= I915_READ(PCH_TRANS_LINK_M1(pipe
));
7142 m_n
->link_n
= I915_READ(PCH_TRANS_LINK_N1(pipe
));
7143 m_n
->gmch_m
= I915_READ(PCH_TRANS_DATA_M1(pipe
))
7145 m_n
->gmch_n
= I915_READ(PCH_TRANS_DATA_N1(pipe
));
7146 m_n
->tu
= ((I915_READ(PCH_TRANS_DATA_M1(pipe
))
7147 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
7150 static void intel_cpu_transcoder_get_m_n(struct intel_crtc
*crtc
,
7151 enum transcoder transcoder
,
7152 struct intel_link_m_n
*m_n
)
7154 struct drm_device
*dev
= crtc
->base
.dev
;
7155 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7156 enum pipe pipe
= crtc
->pipe
;
7158 if (INTEL_INFO(dev
)->gen
>= 5) {
7159 m_n
->link_m
= I915_READ(PIPE_LINK_M1(transcoder
));
7160 m_n
->link_n
= I915_READ(PIPE_LINK_N1(transcoder
));
7161 m_n
->gmch_m
= I915_READ(PIPE_DATA_M1(transcoder
))
7163 m_n
->gmch_n
= I915_READ(PIPE_DATA_N1(transcoder
));
7164 m_n
->tu
= ((I915_READ(PIPE_DATA_M1(transcoder
))
7165 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
7167 m_n
->link_m
= I915_READ(PIPE_LINK_M_G4X(pipe
));
7168 m_n
->link_n
= I915_READ(PIPE_LINK_N_G4X(pipe
));
7169 m_n
->gmch_m
= I915_READ(PIPE_DATA_M_G4X(pipe
))
7171 m_n
->gmch_n
= I915_READ(PIPE_DATA_N_G4X(pipe
));
7172 m_n
->tu
= ((I915_READ(PIPE_DATA_M_G4X(pipe
))
7173 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
7177 void intel_dp_get_m_n(struct intel_crtc
*crtc
,
7178 struct intel_crtc_config
*pipe_config
)
7180 if (crtc
->config
.has_pch_encoder
)
7181 intel_pch_transcoder_get_m_n(crtc
, &pipe_config
->dp_m_n
);
7183 intel_cpu_transcoder_get_m_n(crtc
, pipe_config
->cpu_transcoder
,
7184 &pipe_config
->dp_m_n
);
7187 static void ironlake_get_fdi_m_n_config(struct intel_crtc
*crtc
,
7188 struct intel_crtc_config
*pipe_config
)
7190 intel_cpu_transcoder_get_m_n(crtc
, pipe_config
->cpu_transcoder
,
7191 &pipe_config
->fdi_m_n
);
7194 static void ironlake_get_pfit_config(struct intel_crtc
*crtc
,
7195 struct intel_crtc_config
*pipe_config
)
7197 struct drm_device
*dev
= crtc
->base
.dev
;
7198 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7201 tmp
= I915_READ(PF_CTL(crtc
->pipe
));
7203 if (tmp
& PF_ENABLE
) {
7204 pipe_config
->pch_pfit
.enabled
= true;
7205 pipe_config
->pch_pfit
.pos
= I915_READ(PF_WIN_POS(crtc
->pipe
));
7206 pipe_config
->pch_pfit
.size
= I915_READ(PF_WIN_SZ(crtc
->pipe
));
7208 /* We currently do not free assignements of panel fitters on
7209 * ivb/hsw (since we don't use the higher upscaling modes which
7210 * differentiates them) so just WARN about this case for now. */
7212 WARN_ON((tmp
& PF_PIPE_SEL_MASK_IVB
) !=
7213 PF_PIPE_SEL_IVB(crtc
->pipe
));
7218 static void ironlake_get_plane_config(struct intel_crtc
*crtc
,
7219 struct intel_plane_config
*plane_config
)
7221 struct drm_device
*dev
= crtc
->base
.dev
;
7222 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7223 u32 val
, base
, offset
;
7224 int pipe
= crtc
->pipe
, plane
= crtc
->plane
;
7225 int fourcc
, pixel_format
;
7228 crtc
->base
.primary
->fb
= kzalloc(sizeof(struct intel_framebuffer
), GFP_KERNEL
);
7229 if (!crtc
->base
.primary
->fb
) {
7230 DRM_DEBUG_KMS("failed to alloc fb\n");
7234 val
= I915_READ(DSPCNTR(plane
));
7236 if (INTEL_INFO(dev
)->gen
>= 4)
7237 if (val
& DISPPLANE_TILED
)
7238 plane_config
->tiled
= true;
7240 pixel_format
= val
& DISPPLANE_PIXFORMAT_MASK
;
7241 fourcc
= intel_format_to_fourcc(pixel_format
);
7242 crtc
->base
.primary
->fb
->pixel_format
= fourcc
;
7243 crtc
->base
.primary
->fb
->bits_per_pixel
=
7244 drm_format_plane_cpp(fourcc
, 0) * 8;
7246 base
= I915_READ(DSPSURF(plane
)) & 0xfffff000;
7247 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
7248 offset
= I915_READ(DSPOFFSET(plane
));
7250 if (plane_config
->tiled
)
7251 offset
= I915_READ(DSPTILEOFF(plane
));
7253 offset
= I915_READ(DSPLINOFF(plane
));
7255 plane_config
->base
= base
;
7257 val
= I915_READ(PIPESRC(pipe
));
7258 crtc
->base
.primary
->fb
->width
= ((val
>> 16) & 0xfff) + 1;
7259 crtc
->base
.primary
->fb
->height
= ((val
>> 0) & 0xfff) + 1;
7261 val
= I915_READ(DSPSTRIDE(pipe
));
7262 crtc
->base
.primary
->fb
->pitches
[0] = val
& 0xffffff80;
7264 aligned_height
= intel_align_height(dev
, crtc
->base
.primary
->fb
->height
,
7265 plane_config
->tiled
);
7267 plane_config
->size
= PAGE_ALIGN(crtc
->base
.primary
->fb
->pitches
[0] *
7270 DRM_DEBUG_KMS("pipe/plane %d/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
7271 pipe
, plane
, crtc
->base
.primary
->fb
->width
,
7272 crtc
->base
.primary
->fb
->height
,
7273 crtc
->base
.primary
->fb
->bits_per_pixel
, base
,
7274 crtc
->base
.primary
->fb
->pitches
[0],
7275 plane_config
->size
);
7278 static bool ironlake_get_pipe_config(struct intel_crtc
*crtc
,
7279 struct intel_crtc_config
*pipe_config
)
7281 struct drm_device
*dev
= crtc
->base
.dev
;
7282 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7285 if (!intel_display_power_enabled(dev_priv
,
7286 POWER_DOMAIN_PIPE(crtc
->pipe
)))
7289 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
7290 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
7292 tmp
= I915_READ(PIPECONF(crtc
->pipe
));
7293 if (!(tmp
& PIPECONF_ENABLE
))
7296 switch (tmp
& PIPECONF_BPC_MASK
) {
7298 pipe_config
->pipe_bpp
= 18;
7301 pipe_config
->pipe_bpp
= 24;
7303 case PIPECONF_10BPC
:
7304 pipe_config
->pipe_bpp
= 30;
7306 case PIPECONF_12BPC
:
7307 pipe_config
->pipe_bpp
= 36;
7313 if (tmp
& PIPECONF_COLOR_RANGE_SELECT
)
7314 pipe_config
->limited_color_range
= true;
7316 if (I915_READ(PCH_TRANSCONF(crtc
->pipe
)) & TRANS_ENABLE
) {
7317 struct intel_shared_dpll
*pll
;
7319 pipe_config
->has_pch_encoder
= true;
7321 tmp
= I915_READ(FDI_RX_CTL(crtc
->pipe
));
7322 pipe_config
->fdi_lanes
= ((FDI_DP_PORT_WIDTH_MASK
& tmp
) >>
7323 FDI_DP_PORT_WIDTH_SHIFT
) + 1;
7325 ironlake_get_fdi_m_n_config(crtc
, pipe_config
);
7327 if (HAS_PCH_IBX(dev_priv
->dev
)) {
7328 pipe_config
->shared_dpll
=
7329 (enum intel_dpll_id
) crtc
->pipe
;
7331 tmp
= I915_READ(PCH_DPLL_SEL
);
7332 if (tmp
& TRANS_DPLLB_SEL(crtc
->pipe
))
7333 pipe_config
->shared_dpll
= DPLL_ID_PCH_PLL_B
;
7335 pipe_config
->shared_dpll
= DPLL_ID_PCH_PLL_A
;
7338 pll
= &dev_priv
->shared_dplls
[pipe_config
->shared_dpll
];
7340 WARN_ON(!pll
->get_hw_state(dev_priv
, pll
,
7341 &pipe_config
->dpll_hw_state
));
7343 tmp
= pipe_config
->dpll_hw_state
.dpll
;
7344 pipe_config
->pixel_multiplier
=
7345 ((tmp
& PLL_REF_SDVO_HDMI_MULTIPLIER_MASK
)
7346 >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
) + 1;
7348 ironlake_pch_clock_get(crtc
, pipe_config
);
7350 pipe_config
->pixel_multiplier
= 1;
7353 intel_get_pipe_timings(crtc
, pipe_config
);
7355 ironlake_get_pfit_config(crtc
, pipe_config
);
7360 static void assert_can_disable_lcpll(struct drm_i915_private
*dev_priv
)
7362 struct drm_device
*dev
= dev_priv
->dev
;
7363 struct intel_crtc
*crtc
;
7365 for_each_intel_crtc(dev
, crtc
)
7366 WARN(crtc
->active
, "CRTC for pipe %c enabled\n",
7367 pipe_name(crtc
->pipe
));
7369 WARN(I915_READ(HSW_PWR_WELL_DRIVER
), "Power well on\n");
7370 WARN(I915_READ(SPLL_CTL
) & SPLL_PLL_ENABLE
, "SPLL enabled\n");
7371 WARN(I915_READ(WRPLL_CTL1
) & WRPLL_PLL_ENABLE
, "WRPLL1 enabled\n");
7372 WARN(I915_READ(WRPLL_CTL2
) & WRPLL_PLL_ENABLE
, "WRPLL2 enabled\n");
7373 WARN(I915_READ(PCH_PP_STATUS
) & PP_ON
, "Panel power on\n");
7374 WARN(I915_READ(BLC_PWM_CPU_CTL2
) & BLM_PWM_ENABLE
,
7375 "CPU PWM1 enabled\n");
7376 if (IS_HASWELL(dev
))
7377 WARN(I915_READ(HSW_BLC_PWM2_CTL
) & BLM_PWM_ENABLE
,
7378 "CPU PWM2 enabled\n");
7379 WARN(I915_READ(BLC_PWM_PCH_CTL1
) & BLM_PCH_PWM_ENABLE
,
7380 "PCH PWM1 enabled\n");
7381 WARN(I915_READ(UTIL_PIN_CTL
) & UTIL_PIN_ENABLE
,
7382 "Utility pin enabled\n");
7383 WARN(I915_READ(PCH_GTC_CTL
) & PCH_GTC_ENABLE
, "PCH GTC enabled\n");
7386 * In theory we can still leave IRQs enabled, as long as only the HPD
7387 * interrupts remain enabled. We used to check for that, but since it's
7388 * gen-specific and since we only disable LCPLL after we fully disable
7389 * the interrupts, the check below should be enough.
7391 WARN(intel_irqs_enabled(dev_priv
), "IRQs enabled\n");
7394 static uint32_t hsw_read_dcomp(struct drm_i915_private
*dev_priv
)
7396 struct drm_device
*dev
= dev_priv
->dev
;
7398 if (IS_HASWELL(dev
))
7399 return I915_READ(D_COMP_HSW
);
7401 return I915_READ(D_COMP_BDW
);
7404 static void hsw_write_dcomp(struct drm_i915_private
*dev_priv
, uint32_t val
)
7406 struct drm_device
*dev
= dev_priv
->dev
;
7408 if (IS_HASWELL(dev
)) {
7409 mutex_lock(&dev_priv
->rps
.hw_lock
);
7410 if (sandybridge_pcode_write(dev_priv
, GEN6_PCODE_WRITE_D_COMP
,
7412 DRM_ERROR("Failed to write to D_COMP\n");
7413 mutex_unlock(&dev_priv
->rps
.hw_lock
);
7415 I915_WRITE(D_COMP_BDW
, val
);
7416 POSTING_READ(D_COMP_BDW
);
7421 * This function implements pieces of two sequences from BSpec:
7422 * - Sequence for display software to disable LCPLL
7423 * - Sequence for display software to allow package C8+
7424 * The steps implemented here are just the steps that actually touch the LCPLL
7425 * register. Callers should take care of disabling all the display engine
7426 * functions, doing the mode unset, fixing interrupts, etc.
7428 static void hsw_disable_lcpll(struct drm_i915_private
*dev_priv
,
7429 bool switch_to_fclk
, bool allow_power_down
)
7433 assert_can_disable_lcpll(dev_priv
);
7435 val
= I915_READ(LCPLL_CTL
);
7437 if (switch_to_fclk
) {
7438 val
|= LCPLL_CD_SOURCE_FCLK
;
7439 I915_WRITE(LCPLL_CTL
, val
);
7441 if (wait_for_atomic_us(I915_READ(LCPLL_CTL
) &
7442 LCPLL_CD_SOURCE_FCLK_DONE
, 1))
7443 DRM_ERROR("Switching to FCLK failed\n");
7445 val
= I915_READ(LCPLL_CTL
);
7448 val
|= LCPLL_PLL_DISABLE
;
7449 I915_WRITE(LCPLL_CTL
, val
);
7450 POSTING_READ(LCPLL_CTL
);
7452 if (wait_for((I915_READ(LCPLL_CTL
) & LCPLL_PLL_LOCK
) == 0, 1))
7453 DRM_ERROR("LCPLL still locked\n");
7455 val
= hsw_read_dcomp(dev_priv
);
7456 val
|= D_COMP_COMP_DISABLE
;
7457 hsw_write_dcomp(dev_priv
, val
);
7460 if (wait_for((hsw_read_dcomp(dev_priv
) & D_COMP_RCOMP_IN_PROGRESS
) == 0,
7462 DRM_ERROR("D_COMP RCOMP still in progress\n");
7464 if (allow_power_down
) {
7465 val
= I915_READ(LCPLL_CTL
);
7466 val
|= LCPLL_POWER_DOWN_ALLOW
;
7467 I915_WRITE(LCPLL_CTL
, val
);
7468 POSTING_READ(LCPLL_CTL
);
7473 * Fully restores LCPLL, disallowing power down and switching back to LCPLL
7476 static void hsw_restore_lcpll(struct drm_i915_private
*dev_priv
)
7479 unsigned long irqflags
;
7481 val
= I915_READ(LCPLL_CTL
);
7483 if ((val
& (LCPLL_PLL_LOCK
| LCPLL_PLL_DISABLE
| LCPLL_CD_SOURCE_FCLK
|
7484 LCPLL_POWER_DOWN_ALLOW
)) == LCPLL_PLL_LOCK
)
7488 * Make sure we're not on PC8 state before disabling PC8, otherwise
7489 * we'll hang the machine. To prevent PC8 state, just enable force_wake.
7491 * The other problem is that hsw_restore_lcpll() is called as part of
7492 * the runtime PM resume sequence, so we can't just call
7493 * gen6_gt_force_wake_get() because that function calls
7494 * intel_runtime_pm_get(), and we can't change the runtime PM refcount
7495 * while we are on the resume sequence. So to solve this problem we have
7496 * to call special forcewake code that doesn't touch runtime PM and
7497 * doesn't enable the forcewake delayed work.
7499 spin_lock_irqsave(&dev_priv
->uncore
.lock
, irqflags
);
7500 if (dev_priv
->uncore
.forcewake_count
++ == 0)
7501 dev_priv
->uncore
.funcs
.force_wake_get(dev_priv
, FORCEWAKE_ALL
);
7502 spin_unlock_irqrestore(&dev_priv
->uncore
.lock
, irqflags
);
7504 if (val
& LCPLL_POWER_DOWN_ALLOW
) {
7505 val
&= ~LCPLL_POWER_DOWN_ALLOW
;
7506 I915_WRITE(LCPLL_CTL
, val
);
7507 POSTING_READ(LCPLL_CTL
);
7510 val
= hsw_read_dcomp(dev_priv
);
7511 val
|= D_COMP_COMP_FORCE
;
7512 val
&= ~D_COMP_COMP_DISABLE
;
7513 hsw_write_dcomp(dev_priv
, val
);
7515 val
= I915_READ(LCPLL_CTL
);
7516 val
&= ~LCPLL_PLL_DISABLE
;
7517 I915_WRITE(LCPLL_CTL
, val
);
7519 if (wait_for(I915_READ(LCPLL_CTL
) & LCPLL_PLL_LOCK
, 5))
7520 DRM_ERROR("LCPLL not locked yet\n");
7522 if (val
& LCPLL_CD_SOURCE_FCLK
) {
7523 val
= I915_READ(LCPLL_CTL
);
7524 val
&= ~LCPLL_CD_SOURCE_FCLK
;
7525 I915_WRITE(LCPLL_CTL
, val
);
7527 if (wait_for_atomic_us((I915_READ(LCPLL_CTL
) &
7528 LCPLL_CD_SOURCE_FCLK_DONE
) == 0, 1))
7529 DRM_ERROR("Switching back to LCPLL failed\n");
7532 /* See the big comment above. */
7533 spin_lock_irqsave(&dev_priv
->uncore
.lock
, irqflags
);
7534 if (--dev_priv
->uncore
.forcewake_count
== 0)
7535 dev_priv
->uncore
.funcs
.force_wake_put(dev_priv
, FORCEWAKE_ALL
);
7536 spin_unlock_irqrestore(&dev_priv
->uncore
.lock
, irqflags
);
7540 * Package states C8 and deeper are really deep PC states that can only be
7541 * reached when all the devices on the system allow it, so even if the graphics
7542 * device allows PC8+, it doesn't mean the system will actually get to these
7543 * states. Our driver only allows PC8+ when going into runtime PM.
7545 * The requirements for PC8+ are that all the outputs are disabled, the power
7546 * well is disabled and most interrupts are disabled, and these are also
7547 * requirements for runtime PM. When these conditions are met, we manually do
7548 * the other conditions: disable the interrupts, clocks and switch LCPLL refclk
7549 * to Fclk. If we're in PC8+ and we get an non-hotplug interrupt, we can hard
7552 * When we really reach PC8 or deeper states (not just when we allow it) we lose
7553 * the state of some registers, so when we come back from PC8+ we need to
7554 * restore this state. We don't get into PC8+ if we're not in RC6, so we don't
7555 * need to take care of the registers kept by RC6. Notice that this happens even
7556 * if we don't put the device in PCI D3 state (which is what currently happens
7557 * because of the runtime PM support).
7559 * For more, read "Display Sequences for Package C8" on the hardware
7562 void hsw_enable_pc8(struct drm_i915_private
*dev_priv
)
7564 struct drm_device
*dev
= dev_priv
->dev
;
7567 DRM_DEBUG_KMS("Enabling package C8+\n");
7569 if (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) {
7570 val
= I915_READ(SOUTH_DSPCLK_GATE_D
);
7571 val
&= ~PCH_LP_PARTITION_LEVEL_DISABLE
;
7572 I915_WRITE(SOUTH_DSPCLK_GATE_D
, val
);
7575 lpt_disable_clkout_dp(dev
);
7576 hsw_disable_lcpll(dev_priv
, true, true);
7579 void hsw_disable_pc8(struct drm_i915_private
*dev_priv
)
7581 struct drm_device
*dev
= dev_priv
->dev
;
7584 DRM_DEBUG_KMS("Disabling package C8+\n");
7586 hsw_restore_lcpll(dev_priv
);
7587 lpt_init_pch_refclk(dev
);
7589 if (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) {
7590 val
= I915_READ(SOUTH_DSPCLK_GATE_D
);
7591 val
|= PCH_LP_PARTITION_LEVEL_DISABLE
;
7592 I915_WRITE(SOUTH_DSPCLK_GATE_D
, val
);
7595 intel_prepare_ddi(dev
);
7598 static void snb_modeset_global_resources(struct drm_device
*dev
)
7600 modeset_update_crtc_power_domains(dev
);
7603 static void haswell_modeset_global_resources(struct drm_device
*dev
)
7605 modeset_update_crtc_power_domains(dev
);
7608 static int haswell_crtc_mode_set(struct drm_crtc
*crtc
,
7610 struct drm_framebuffer
*fb
)
7612 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7614 if (!intel_ddi_pll_select(intel_crtc
))
7617 intel_crtc
->lowfreq_avail
= false;
7622 static void haswell_get_ddi_port_state(struct intel_crtc
*crtc
,
7623 struct intel_crtc_config
*pipe_config
)
7625 struct drm_device
*dev
= crtc
->base
.dev
;
7626 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7627 struct intel_shared_dpll
*pll
;
7631 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(pipe_config
->cpu_transcoder
));
7633 port
= (tmp
& TRANS_DDI_PORT_MASK
) >> TRANS_DDI_PORT_SHIFT
;
7635 pipe_config
->ddi_pll_sel
= I915_READ(PORT_CLK_SEL(port
));
7637 switch (pipe_config
->ddi_pll_sel
) {
7638 case PORT_CLK_SEL_WRPLL1
:
7639 pipe_config
->shared_dpll
= DPLL_ID_WRPLL1
;
7641 case PORT_CLK_SEL_WRPLL2
:
7642 pipe_config
->shared_dpll
= DPLL_ID_WRPLL2
;
7646 if (pipe_config
->shared_dpll
>= 0) {
7647 pll
= &dev_priv
->shared_dplls
[pipe_config
->shared_dpll
];
7649 WARN_ON(!pll
->get_hw_state(dev_priv
, pll
,
7650 &pipe_config
->dpll_hw_state
));
7654 * Haswell has only FDI/PCH transcoder A. It is which is connected to
7655 * DDI E. So just check whether this pipe is wired to DDI E and whether
7656 * the PCH transcoder is on.
7658 if ((port
== PORT_E
) && I915_READ(LPT_TRANSCONF
) & TRANS_ENABLE
) {
7659 pipe_config
->has_pch_encoder
= true;
7661 tmp
= I915_READ(FDI_RX_CTL(PIPE_A
));
7662 pipe_config
->fdi_lanes
= ((FDI_DP_PORT_WIDTH_MASK
& tmp
) >>
7663 FDI_DP_PORT_WIDTH_SHIFT
) + 1;
7665 ironlake_get_fdi_m_n_config(crtc
, pipe_config
);
7669 static bool haswell_get_pipe_config(struct intel_crtc
*crtc
,
7670 struct intel_crtc_config
*pipe_config
)
7672 struct drm_device
*dev
= crtc
->base
.dev
;
7673 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7674 enum intel_display_power_domain pfit_domain
;
7677 if (!intel_display_power_enabled(dev_priv
,
7678 POWER_DOMAIN_PIPE(crtc
->pipe
)))
7681 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
7682 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
7684 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP
));
7685 if (tmp
& TRANS_DDI_FUNC_ENABLE
) {
7686 enum pipe trans_edp_pipe
;
7687 switch (tmp
& TRANS_DDI_EDP_INPUT_MASK
) {
7689 WARN(1, "unknown pipe linked to edp transcoder\n");
7690 case TRANS_DDI_EDP_INPUT_A_ONOFF
:
7691 case TRANS_DDI_EDP_INPUT_A_ON
:
7692 trans_edp_pipe
= PIPE_A
;
7694 case TRANS_DDI_EDP_INPUT_B_ONOFF
:
7695 trans_edp_pipe
= PIPE_B
;
7697 case TRANS_DDI_EDP_INPUT_C_ONOFF
:
7698 trans_edp_pipe
= PIPE_C
;
7702 if (trans_edp_pipe
== crtc
->pipe
)
7703 pipe_config
->cpu_transcoder
= TRANSCODER_EDP
;
7706 if (!intel_display_power_enabled(dev_priv
,
7707 POWER_DOMAIN_TRANSCODER(pipe_config
->cpu_transcoder
)))
7710 tmp
= I915_READ(PIPECONF(pipe_config
->cpu_transcoder
));
7711 if (!(tmp
& PIPECONF_ENABLE
))
7714 haswell_get_ddi_port_state(crtc
, pipe_config
);
7716 intel_get_pipe_timings(crtc
, pipe_config
);
7718 pfit_domain
= POWER_DOMAIN_PIPE_PANEL_FITTER(crtc
->pipe
);
7719 if (intel_display_power_enabled(dev_priv
, pfit_domain
))
7720 ironlake_get_pfit_config(crtc
, pipe_config
);
7722 if (IS_HASWELL(dev
))
7723 pipe_config
->ips_enabled
= hsw_crtc_supports_ips(crtc
) &&
7724 (I915_READ(IPS_CTL
) & IPS_ENABLE
);
7726 pipe_config
->pixel_multiplier
= 1;
7734 } hdmi_audio_clock
[] = {
7735 { DIV_ROUND_UP(25200 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_25175
},
7736 { 25200, AUD_CONFIG_PIXEL_CLOCK_HDMI_25200
}, /* default per bspec */
7737 { 27000, AUD_CONFIG_PIXEL_CLOCK_HDMI_27000
},
7738 { 27000 * 1001 / 1000, AUD_CONFIG_PIXEL_CLOCK_HDMI_27027
},
7739 { 54000, AUD_CONFIG_PIXEL_CLOCK_HDMI_54000
},
7740 { 54000 * 1001 / 1000, AUD_CONFIG_PIXEL_CLOCK_HDMI_54054
},
7741 { DIV_ROUND_UP(74250 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_74176
},
7742 { 74250, AUD_CONFIG_PIXEL_CLOCK_HDMI_74250
},
7743 { DIV_ROUND_UP(148500 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_148352
},
7744 { 148500, AUD_CONFIG_PIXEL_CLOCK_HDMI_148500
},
7747 /* get AUD_CONFIG_PIXEL_CLOCK_HDMI_* value for mode */
7748 static u32
audio_config_hdmi_pixel_clock(struct drm_display_mode
*mode
)
7752 for (i
= 0; i
< ARRAY_SIZE(hdmi_audio_clock
); i
++) {
7753 if (mode
->clock
== hdmi_audio_clock
[i
].clock
)
7757 if (i
== ARRAY_SIZE(hdmi_audio_clock
)) {
7758 DRM_DEBUG_KMS("HDMI audio pixel clock setting for %d not found, falling back to defaults\n", mode
->clock
);
7762 DRM_DEBUG_KMS("Configuring HDMI audio for pixel clock %d (0x%08x)\n",
7763 hdmi_audio_clock
[i
].clock
,
7764 hdmi_audio_clock
[i
].config
);
7766 return hdmi_audio_clock
[i
].config
;
7769 static bool intel_eld_uptodate(struct drm_connector
*connector
,
7770 int reg_eldv
, uint32_t bits_eldv
,
7771 int reg_elda
, uint32_t bits_elda
,
7774 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
7775 uint8_t *eld
= connector
->eld
;
7778 i
= I915_READ(reg_eldv
);
7787 i
= I915_READ(reg_elda
);
7789 I915_WRITE(reg_elda
, i
);
7791 for (i
= 0; i
< eld
[2]; i
++)
7792 if (I915_READ(reg_edid
) != *((uint32_t *)eld
+ i
))
7798 static void g4x_write_eld(struct drm_connector
*connector
,
7799 struct drm_crtc
*crtc
,
7800 struct drm_display_mode
*mode
)
7802 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
7803 uint8_t *eld
= connector
->eld
;
7808 i
= I915_READ(G4X_AUD_VID_DID
);
7810 if (i
== INTEL_AUDIO_DEVBLC
|| i
== INTEL_AUDIO_DEVCL
)
7811 eldv
= G4X_ELDV_DEVCL_DEVBLC
;
7813 eldv
= G4X_ELDV_DEVCTG
;
7815 if (intel_eld_uptodate(connector
,
7816 G4X_AUD_CNTL_ST
, eldv
,
7817 G4X_AUD_CNTL_ST
, G4X_ELD_ADDR
,
7818 G4X_HDMIW_HDMIEDID
))
7821 i
= I915_READ(G4X_AUD_CNTL_ST
);
7822 i
&= ~(eldv
| G4X_ELD_ADDR
);
7823 len
= (i
>> 9) & 0x1f; /* ELD buffer size */
7824 I915_WRITE(G4X_AUD_CNTL_ST
, i
);
7829 len
= min_t(uint8_t, eld
[2], len
);
7830 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
7831 for (i
= 0; i
< len
; i
++)
7832 I915_WRITE(G4X_HDMIW_HDMIEDID
, *((uint32_t *)eld
+ i
));
7834 i
= I915_READ(G4X_AUD_CNTL_ST
);
7836 I915_WRITE(G4X_AUD_CNTL_ST
, i
);
7839 static void haswell_write_eld(struct drm_connector
*connector
,
7840 struct drm_crtc
*crtc
,
7841 struct drm_display_mode
*mode
)
7843 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
7844 uint8_t *eld
= connector
->eld
;
7848 int pipe
= to_intel_crtc(crtc
)->pipe
;
7851 int hdmiw_hdmiedid
= HSW_AUD_EDID_DATA(pipe
);
7852 int aud_cntl_st
= HSW_AUD_DIP_ELD_CTRL(pipe
);
7853 int aud_config
= HSW_AUD_CFG(pipe
);
7854 int aud_cntrl_st2
= HSW_AUD_PIN_ELD_CP_VLD
;
7856 /* Audio output enable */
7857 DRM_DEBUG_DRIVER("HDMI audio: enable codec\n");
7858 tmp
= I915_READ(aud_cntrl_st2
);
7859 tmp
|= (AUDIO_OUTPUT_ENABLE_A
<< (pipe
* 4));
7860 I915_WRITE(aud_cntrl_st2
, tmp
);
7861 POSTING_READ(aud_cntrl_st2
);
7863 assert_pipe_disabled(dev_priv
, to_intel_crtc(crtc
)->pipe
);
7865 /* Set ELD valid state */
7866 tmp
= I915_READ(aud_cntrl_st2
);
7867 DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%08x\n", tmp
);
7868 tmp
|= (AUDIO_ELD_VALID_A
<< (pipe
* 4));
7869 I915_WRITE(aud_cntrl_st2
, tmp
);
7870 tmp
= I915_READ(aud_cntrl_st2
);
7871 DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%08x\n", tmp
);
7873 /* Enable HDMI mode */
7874 tmp
= I915_READ(aud_config
);
7875 DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%08x\n", tmp
);
7876 /* clear N_programing_enable and N_value_index */
7877 tmp
&= ~(AUD_CONFIG_N_VALUE_INDEX
| AUD_CONFIG_N_PROG_ENABLE
);
7878 I915_WRITE(aud_config
, tmp
);
7880 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe
));
7882 eldv
= AUDIO_ELD_VALID_A
<< (pipe
* 4);
7884 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
)) {
7885 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
7886 eld
[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
7887 I915_WRITE(aud_config
, AUD_CONFIG_N_VALUE_INDEX
); /* 0x1 = DP */
7889 I915_WRITE(aud_config
, audio_config_hdmi_pixel_clock(mode
));
7892 if (intel_eld_uptodate(connector
,
7893 aud_cntrl_st2
, eldv
,
7894 aud_cntl_st
, IBX_ELD_ADDRESS
,
7898 i
= I915_READ(aud_cntrl_st2
);
7900 I915_WRITE(aud_cntrl_st2
, i
);
7905 i
= I915_READ(aud_cntl_st
);
7906 i
&= ~IBX_ELD_ADDRESS
;
7907 I915_WRITE(aud_cntl_st
, i
);
7908 i
= (i
>> 29) & DIP_PORT_SEL_MASK
; /* DIP_Port_Select, 0x1 = PortB */
7909 DRM_DEBUG_DRIVER("port num:%d\n", i
);
7911 len
= min_t(uint8_t, eld
[2], 21); /* 84 bytes of hw ELD buffer */
7912 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
7913 for (i
= 0; i
< len
; i
++)
7914 I915_WRITE(hdmiw_hdmiedid
, *((uint32_t *)eld
+ i
));
7916 i
= I915_READ(aud_cntrl_st2
);
7918 I915_WRITE(aud_cntrl_st2
, i
);
7922 static void ironlake_write_eld(struct drm_connector
*connector
,
7923 struct drm_crtc
*crtc
,
7924 struct drm_display_mode
*mode
)
7926 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
7927 uint8_t *eld
= connector
->eld
;
7935 int pipe
= to_intel_crtc(crtc
)->pipe
;
7937 if (HAS_PCH_IBX(connector
->dev
)) {
7938 hdmiw_hdmiedid
= IBX_HDMIW_HDMIEDID(pipe
);
7939 aud_config
= IBX_AUD_CFG(pipe
);
7940 aud_cntl_st
= IBX_AUD_CNTL_ST(pipe
);
7941 aud_cntrl_st2
= IBX_AUD_CNTL_ST2
;
7942 } else if (IS_VALLEYVIEW(connector
->dev
)) {
7943 hdmiw_hdmiedid
= VLV_HDMIW_HDMIEDID(pipe
);
7944 aud_config
= VLV_AUD_CFG(pipe
);
7945 aud_cntl_st
= VLV_AUD_CNTL_ST(pipe
);
7946 aud_cntrl_st2
= VLV_AUD_CNTL_ST2
;
7948 hdmiw_hdmiedid
= CPT_HDMIW_HDMIEDID(pipe
);
7949 aud_config
= CPT_AUD_CFG(pipe
);
7950 aud_cntl_st
= CPT_AUD_CNTL_ST(pipe
);
7951 aud_cntrl_st2
= CPT_AUD_CNTRL_ST2
;
7954 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe
));
7956 if (IS_VALLEYVIEW(connector
->dev
)) {
7957 struct intel_encoder
*intel_encoder
;
7958 struct intel_digital_port
*intel_dig_port
;
7960 intel_encoder
= intel_attached_encoder(connector
);
7961 intel_dig_port
= enc_to_dig_port(&intel_encoder
->base
);
7962 i
= intel_dig_port
->port
;
7964 i
= I915_READ(aud_cntl_st
);
7965 i
= (i
>> 29) & DIP_PORT_SEL_MASK
;
7966 /* DIP_Port_Select, 0x1 = PortB */
7970 DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
7971 /* operate blindly on all ports */
7972 eldv
= IBX_ELD_VALIDB
;
7973 eldv
|= IBX_ELD_VALIDB
<< 4;
7974 eldv
|= IBX_ELD_VALIDB
<< 8;
7976 DRM_DEBUG_DRIVER("ELD on port %c\n", port_name(i
));
7977 eldv
= IBX_ELD_VALIDB
<< ((i
- 1) * 4);
7980 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
)) {
7981 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
7982 eld
[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
7983 I915_WRITE(aud_config
, AUD_CONFIG_N_VALUE_INDEX
); /* 0x1 = DP */
7985 I915_WRITE(aud_config
, audio_config_hdmi_pixel_clock(mode
));
7988 if (intel_eld_uptodate(connector
,
7989 aud_cntrl_st2
, eldv
,
7990 aud_cntl_st
, IBX_ELD_ADDRESS
,
7994 i
= I915_READ(aud_cntrl_st2
);
7996 I915_WRITE(aud_cntrl_st2
, i
);
8001 i
= I915_READ(aud_cntl_st
);
8002 i
&= ~IBX_ELD_ADDRESS
;
8003 I915_WRITE(aud_cntl_st
, i
);
8005 len
= min_t(uint8_t, eld
[2], 21); /* 84 bytes of hw ELD buffer */
8006 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
8007 for (i
= 0; i
< len
; i
++)
8008 I915_WRITE(hdmiw_hdmiedid
, *((uint32_t *)eld
+ i
));
8010 i
= I915_READ(aud_cntrl_st2
);
8012 I915_WRITE(aud_cntrl_st2
, i
);
8015 void intel_write_eld(struct drm_encoder
*encoder
,
8016 struct drm_display_mode
*mode
)
8018 struct drm_crtc
*crtc
= encoder
->crtc
;
8019 struct drm_connector
*connector
;
8020 struct drm_device
*dev
= encoder
->dev
;
8021 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8023 connector
= drm_select_eld(encoder
, mode
);
8027 DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
8030 connector
->encoder
->base
.id
,
8031 connector
->encoder
->name
);
8033 connector
->eld
[6] = drm_av_sync_delay(connector
, mode
) / 2;
8035 if (dev_priv
->display
.write_eld
)
8036 dev_priv
->display
.write_eld(connector
, crtc
, mode
);
8039 static void i845_update_cursor(struct drm_crtc
*crtc
, u32 base
)
8041 struct drm_device
*dev
= crtc
->dev
;
8042 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8043 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8046 if (base
!= intel_crtc
->cursor_base
) {
8047 /* On these chipsets we can only modify the base whilst
8048 * the cursor is disabled.
8050 if (intel_crtc
->cursor_cntl
) {
8051 I915_WRITE(_CURACNTR
, 0);
8052 POSTING_READ(_CURACNTR
);
8053 intel_crtc
->cursor_cntl
= 0;
8056 I915_WRITE(_CURABASE
, base
);
8057 POSTING_READ(_CURABASE
);
8060 /* XXX width must be 64, stride 256 => 0x00 << 28 */
8063 cntl
= (CURSOR_ENABLE
|
8064 CURSOR_GAMMA_ENABLE
|
8065 CURSOR_FORMAT_ARGB
);
8066 if (intel_crtc
->cursor_cntl
!= cntl
) {
8067 I915_WRITE(_CURACNTR
, cntl
);
8068 POSTING_READ(_CURACNTR
);
8069 intel_crtc
->cursor_cntl
= cntl
;
8073 static void i9xx_update_cursor(struct drm_crtc
*crtc
, u32 base
)
8075 struct drm_device
*dev
= crtc
->dev
;
8076 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8077 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8078 int pipe
= intel_crtc
->pipe
;
8083 cntl
= MCURSOR_GAMMA_ENABLE
;
8084 switch (intel_crtc
->cursor_width
) {
8086 cntl
|= CURSOR_MODE_64_ARGB_AX
;
8089 cntl
|= CURSOR_MODE_128_ARGB_AX
;
8092 cntl
|= CURSOR_MODE_256_ARGB_AX
;
8098 cntl
|= pipe
<< 28; /* Connect to correct pipe */
8100 if (intel_crtc
->cursor_cntl
!= cntl
) {
8101 I915_WRITE(CURCNTR(pipe
), cntl
);
8102 POSTING_READ(CURCNTR(pipe
));
8103 intel_crtc
->cursor_cntl
= cntl
;
8106 /* and commit changes on next vblank */
8107 I915_WRITE(CURBASE(pipe
), base
);
8108 POSTING_READ(CURBASE(pipe
));
8111 static void ivb_update_cursor(struct drm_crtc
*crtc
, u32 base
)
8113 struct drm_device
*dev
= crtc
->dev
;
8114 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8115 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8116 int pipe
= intel_crtc
->pipe
;
8121 cntl
= MCURSOR_GAMMA_ENABLE
;
8122 switch (intel_crtc
->cursor_width
) {
8124 cntl
|= CURSOR_MODE_64_ARGB_AX
;
8127 cntl
|= CURSOR_MODE_128_ARGB_AX
;
8130 cntl
|= CURSOR_MODE_256_ARGB_AX
;
8137 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
8138 cntl
|= CURSOR_PIPE_CSC_ENABLE
;
8140 if (intel_crtc
->cursor_cntl
!= cntl
) {
8141 I915_WRITE(CURCNTR(pipe
), cntl
);
8142 POSTING_READ(CURCNTR(pipe
));
8143 intel_crtc
->cursor_cntl
= cntl
;
8146 /* and commit changes on next vblank */
8147 I915_WRITE(CURBASE(pipe
), base
);
8148 POSTING_READ(CURBASE(pipe
));
8151 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
8152 static void intel_crtc_update_cursor(struct drm_crtc
*crtc
,
8155 struct drm_device
*dev
= crtc
->dev
;
8156 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8157 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8158 int pipe
= intel_crtc
->pipe
;
8159 int x
= crtc
->cursor_x
;
8160 int y
= crtc
->cursor_y
;
8161 u32 base
= 0, pos
= 0;
8164 base
= intel_crtc
->cursor_addr
;
8166 if (x
>= intel_crtc
->config
.pipe_src_w
)
8169 if (y
>= intel_crtc
->config
.pipe_src_h
)
8173 if (x
+ intel_crtc
->cursor_width
<= 0)
8176 pos
|= CURSOR_POS_SIGN
<< CURSOR_X_SHIFT
;
8179 pos
|= x
<< CURSOR_X_SHIFT
;
8182 if (y
+ intel_crtc
->cursor_height
<= 0)
8185 pos
|= CURSOR_POS_SIGN
<< CURSOR_Y_SHIFT
;
8188 pos
|= y
<< CURSOR_Y_SHIFT
;
8190 if (base
== 0 && intel_crtc
->cursor_base
== 0)
8193 I915_WRITE(CURPOS(pipe
), pos
);
8195 if (IS_IVYBRIDGE(dev
) || IS_HASWELL(dev
) || IS_BROADWELL(dev
))
8196 ivb_update_cursor(crtc
, base
);
8197 else if (IS_845G(dev
) || IS_I865G(dev
))
8198 i845_update_cursor(crtc
, base
);
8200 i9xx_update_cursor(crtc
, base
);
8201 intel_crtc
->cursor_base
= base
;
8205 * intel_crtc_cursor_set_obj - Set cursor to specified GEM object
8207 * Note that the object's reference will be consumed if the update fails. If
8208 * the update succeeds, the reference of the old object (if any) will be
8211 static int intel_crtc_cursor_set_obj(struct drm_crtc
*crtc
,
8212 struct drm_i915_gem_object
*obj
,
8213 uint32_t width
, uint32_t height
)
8215 struct drm_device
*dev
= crtc
->dev
;
8216 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8217 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8218 enum pipe pipe
= intel_crtc
->pipe
;
8223 /* if we want to turn off the cursor ignore width and height */
8225 DRM_DEBUG_KMS("cursor off\n");
8228 mutex_lock(&dev
->struct_mutex
);
8232 /* Check for which cursor types we support */
8233 if (!((width
== 64 && height
== 64) ||
8234 (width
== 128 && height
== 128 && !IS_GEN2(dev
)) ||
8235 (width
== 256 && height
== 256 && !IS_GEN2(dev
)))) {
8236 DRM_DEBUG("Cursor dimension not supported\n");
8240 if (obj
->base
.size
< width
* height
* 4) {
8241 DRM_DEBUG_KMS("buffer is too small\n");
8246 /* we only need to pin inside GTT if cursor is non-phy */
8247 mutex_lock(&dev
->struct_mutex
);
8248 if (!INTEL_INFO(dev
)->cursor_needs_physical
) {
8251 if (obj
->tiling_mode
) {
8252 DRM_DEBUG_KMS("cursor cannot be tiled\n");
8257 /* Note that the w/a also requires 2 PTE of padding following
8258 * the bo. We currently fill all unused PTE with the shadow
8259 * page and so we should always have valid PTE following the
8260 * cursor preventing the VT-d warning.
8263 if (need_vtd_wa(dev
))
8264 alignment
= 64*1024;
8266 ret
= i915_gem_object_pin_to_display_plane(obj
, alignment
, NULL
);
8268 DRM_DEBUG_KMS("failed to move cursor bo into the GTT\n");
8272 ret
= i915_gem_object_put_fence(obj
);
8274 DRM_DEBUG_KMS("failed to release fence for cursor");
8278 addr
= i915_gem_obj_ggtt_offset(obj
);
8280 int align
= IS_I830(dev
) ? 16 * 1024 : 256;
8281 ret
= i915_gem_object_attach_phys(obj
, align
);
8283 DRM_DEBUG_KMS("failed to attach phys object\n");
8286 addr
= obj
->phys_handle
->busaddr
;
8290 I915_WRITE(CURSIZE
, (height
<< 12) | width
);
8293 if (intel_crtc
->cursor_bo
) {
8294 if (!INTEL_INFO(dev
)->cursor_needs_physical
)
8295 i915_gem_object_unpin_from_display_plane(intel_crtc
->cursor_bo
);
8298 i915_gem_track_fb(intel_crtc
->cursor_bo
, obj
,
8299 INTEL_FRONTBUFFER_CURSOR(pipe
));
8300 mutex_unlock(&dev
->struct_mutex
);
8302 old_width
= intel_crtc
->cursor_width
;
8304 intel_crtc
->cursor_addr
= addr
;
8305 intel_crtc
->cursor_bo
= obj
;
8306 intel_crtc
->cursor_width
= width
;
8307 intel_crtc
->cursor_height
= height
;
8309 if (intel_crtc
->active
) {
8310 if (old_width
!= width
)
8311 intel_update_watermarks(crtc
);
8312 intel_crtc_update_cursor(crtc
, intel_crtc
->cursor_bo
!= NULL
);
8315 intel_frontbuffer_flip(dev
, INTEL_FRONTBUFFER_CURSOR(pipe
));
8319 i915_gem_object_unpin_from_display_plane(obj
);
8321 mutex_unlock(&dev
->struct_mutex
);
8323 drm_gem_object_unreference_unlocked(&obj
->base
);
8327 static void intel_crtc_gamma_set(struct drm_crtc
*crtc
, u16
*red
, u16
*green
,
8328 u16
*blue
, uint32_t start
, uint32_t size
)
8330 int end
= (start
+ size
> 256) ? 256 : start
+ size
, i
;
8331 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8333 for (i
= start
; i
< end
; i
++) {
8334 intel_crtc
->lut_r
[i
] = red
[i
] >> 8;
8335 intel_crtc
->lut_g
[i
] = green
[i
] >> 8;
8336 intel_crtc
->lut_b
[i
] = blue
[i
] >> 8;
8339 intel_crtc_load_lut(crtc
);
8342 /* VESA 640x480x72Hz mode to set on the pipe */
8343 static struct drm_display_mode load_detect_mode
= {
8344 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT
, 31500, 640, 664,
8345 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
8348 struct drm_framebuffer
*
8349 __intel_framebuffer_create(struct drm_device
*dev
,
8350 struct drm_mode_fb_cmd2
*mode_cmd
,
8351 struct drm_i915_gem_object
*obj
)
8353 struct intel_framebuffer
*intel_fb
;
8356 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
8358 drm_gem_object_unreference_unlocked(&obj
->base
);
8359 return ERR_PTR(-ENOMEM
);
8362 ret
= intel_framebuffer_init(dev
, intel_fb
, mode_cmd
, obj
);
8366 return &intel_fb
->base
;
8368 drm_gem_object_unreference_unlocked(&obj
->base
);
8371 return ERR_PTR(ret
);
8374 static struct drm_framebuffer
*
8375 intel_framebuffer_create(struct drm_device
*dev
,
8376 struct drm_mode_fb_cmd2
*mode_cmd
,
8377 struct drm_i915_gem_object
*obj
)
8379 struct drm_framebuffer
*fb
;
8382 ret
= i915_mutex_lock_interruptible(dev
);
8384 return ERR_PTR(ret
);
8385 fb
= __intel_framebuffer_create(dev
, mode_cmd
, obj
);
8386 mutex_unlock(&dev
->struct_mutex
);
8392 intel_framebuffer_pitch_for_width(int width
, int bpp
)
8394 u32 pitch
= DIV_ROUND_UP(width
* bpp
, 8);
8395 return ALIGN(pitch
, 64);
8399 intel_framebuffer_size_for_mode(struct drm_display_mode
*mode
, int bpp
)
8401 u32 pitch
= intel_framebuffer_pitch_for_width(mode
->hdisplay
, bpp
);
8402 return PAGE_ALIGN(pitch
* mode
->vdisplay
);
8405 static struct drm_framebuffer
*
8406 intel_framebuffer_create_for_mode(struct drm_device
*dev
,
8407 struct drm_display_mode
*mode
,
8410 struct drm_i915_gem_object
*obj
;
8411 struct drm_mode_fb_cmd2 mode_cmd
= { 0 };
8413 obj
= i915_gem_alloc_object(dev
,
8414 intel_framebuffer_size_for_mode(mode
, bpp
));
8416 return ERR_PTR(-ENOMEM
);
8418 mode_cmd
.width
= mode
->hdisplay
;
8419 mode_cmd
.height
= mode
->vdisplay
;
8420 mode_cmd
.pitches
[0] = intel_framebuffer_pitch_for_width(mode_cmd
.width
,
8422 mode_cmd
.pixel_format
= drm_mode_legacy_fb_format(bpp
, depth
);
8424 return intel_framebuffer_create(dev
, &mode_cmd
, obj
);
8427 static struct drm_framebuffer
*
8428 mode_fits_in_fbdev(struct drm_device
*dev
,
8429 struct drm_display_mode
*mode
)
8431 #ifdef CONFIG_DRM_I915_FBDEV
8432 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8433 struct drm_i915_gem_object
*obj
;
8434 struct drm_framebuffer
*fb
;
8436 if (!dev_priv
->fbdev
)
8439 if (!dev_priv
->fbdev
->fb
)
8442 obj
= dev_priv
->fbdev
->fb
->obj
;
8445 fb
= &dev_priv
->fbdev
->fb
->base
;
8446 if (fb
->pitches
[0] < intel_framebuffer_pitch_for_width(mode
->hdisplay
,
8447 fb
->bits_per_pixel
))
8450 if (obj
->base
.size
< mode
->vdisplay
* fb
->pitches
[0])
8459 bool intel_get_load_detect_pipe(struct drm_connector
*connector
,
8460 struct drm_display_mode
*mode
,
8461 struct intel_load_detect_pipe
*old
,
8462 struct drm_modeset_acquire_ctx
*ctx
)
8464 struct intel_crtc
*intel_crtc
;
8465 struct intel_encoder
*intel_encoder
=
8466 intel_attached_encoder(connector
);
8467 struct drm_crtc
*possible_crtc
;
8468 struct drm_encoder
*encoder
= &intel_encoder
->base
;
8469 struct drm_crtc
*crtc
= NULL
;
8470 struct drm_device
*dev
= encoder
->dev
;
8471 struct drm_framebuffer
*fb
;
8472 struct drm_mode_config
*config
= &dev
->mode_config
;
8475 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
8476 connector
->base
.id
, connector
->name
,
8477 encoder
->base
.id
, encoder
->name
);
8479 drm_modeset_acquire_init(ctx
, 0);
8482 ret
= drm_modeset_lock(&config
->connection_mutex
, ctx
);
8487 * Algorithm gets a little messy:
8489 * - if the connector already has an assigned crtc, use it (but make
8490 * sure it's on first)
8492 * - try to find the first unused crtc that can drive this connector,
8493 * and use that if we find one
8496 /* See if we already have a CRTC for this connector */
8497 if (encoder
->crtc
) {
8498 crtc
= encoder
->crtc
;
8500 ret
= drm_modeset_lock(&crtc
->mutex
, ctx
);
8504 old
->dpms_mode
= connector
->dpms
;
8505 old
->load_detect_temp
= false;
8507 /* Make sure the crtc and connector are running */
8508 if (connector
->dpms
!= DRM_MODE_DPMS_ON
)
8509 connector
->funcs
->dpms(connector
, DRM_MODE_DPMS_ON
);
8514 /* Find an unused one (if possible) */
8515 for_each_crtc(dev
, possible_crtc
) {
8517 if (!(encoder
->possible_crtcs
& (1 << i
)))
8519 if (!possible_crtc
->enabled
) {
8520 crtc
= possible_crtc
;
8526 * If we didn't find an unused CRTC, don't use any.
8529 DRM_DEBUG_KMS("no pipe available for load-detect\n");
8533 ret
= drm_modeset_lock(&crtc
->mutex
, ctx
);
8536 intel_encoder
->new_crtc
= to_intel_crtc(crtc
);
8537 to_intel_connector(connector
)->new_encoder
= intel_encoder
;
8539 intel_crtc
= to_intel_crtc(crtc
);
8540 intel_crtc
->new_enabled
= true;
8541 intel_crtc
->new_config
= &intel_crtc
->config
;
8542 old
->dpms_mode
= connector
->dpms
;
8543 old
->load_detect_temp
= true;
8544 old
->release_fb
= NULL
;
8547 mode
= &load_detect_mode
;
8549 /* We need a framebuffer large enough to accommodate all accesses
8550 * that the plane may generate whilst we perform load detection.
8551 * We can not rely on the fbcon either being present (we get called
8552 * during its initialisation to detect all boot displays, or it may
8553 * not even exist) or that it is large enough to satisfy the
8556 fb
= mode_fits_in_fbdev(dev
, mode
);
8558 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
8559 fb
= intel_framebuffer_create_for_mode(dev
, mode
, 24, 32);
8560 old
->release_fb
= fb
;
8562 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
8564 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
8568 if (intel_set_mode(crtc
, mode
, 0, 0, fb
)) {
8569 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
8570 if (old
->release_fb
)
8571 old
->release_fb
->funcs
->destroy(old
->release_fb
);
8575 /* let the connector get through one full cycle before testing */
8576 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
8580 intel_crtc
->new_enabled
= crtc
->enabled
;
8581 if (intel_crtc
->new_enabled
)
8582 intel_crtc
->new_config
= &intel_crtc
->config
;
8584 intel_crtc
->new_config
= NULL
;
8586 if (ret
== -EDEADLK
) {
8587 drm_modeset_backoff(ctx
);
8591 drm_modeset_drop_locks(ctx
);
8592 drm_modeset_acquire_fini(ctx
);
8597 void intel_release_load_detect_pipe(struct drm_connector
*connector
,
8598 struct intel_load_detect_pipe
*old
,
8599 struct drm_modeset_acquire_ctx
*ctx
)
8601 struct intel_encoder
*intel_encoder
=
8602 intel_attached_encoder(connector
);
8603 struct drm_encoder
*encoder
= &intel_encoder
->base
;
8604 struct drm_crtc
*crtc
= encoder
->crtc
;
8605 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8607 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
8608 connector
->base
.id
, connector
->name
,
8609 encoder
->base
.id
, encoder
->name
);
8611 if (old
->load_detect_temp
) {
8612 to_intel_connector(connector
)->new_encoder
= NULL
;
8613 intel_encoder
->new_crtc
= NULL
;
8614 intel_crtc
->new_enabled
= false;
8615 intel_crtc
->new_config
= NULL
;
8616 intel_set_mode(crtc
, NULL
, 0, 0, NULL
);
8618 if (old
->release_fb
) {
8619 drm_framebuffer_unregister_private(old
->release_fb
);
8620 drm_framebuffer_unreference(old
->release_fb
);
8627 /* Switch crtc and encoder back off if necessary */
8628 if (old
->dpms_mode
!= DRM_MODE_DPMS_ON
)
8629 connector
->funcs
->dpms(connector
, old
->dpms_mode
);
8632 drm_modeset_drop_locks(ctx
);
8633 drm_modeset_acquire_fini(ctx
);
8636 static int i9xx_pll_refclk(struct drm_device
*dev
,
8637 const struct intel_crtc_config
*pipe_config
)
8639 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8640 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
8642 if ((dpll
& PLL_REF_INPUT_MASK
) == PLLB_REF_INPUT_SPREADSPECTRUMIN
)
8643 return dev_priv
->vbt
.lvds_ssc_freq
;
8644 else if (HAS_PCH_SPLIT(dev
))
8646 else if (!IS_GEN2(dev
))
8652 /* Returns the clock of the currently programmed mode of the given pipe. */
8653 static void i9xx_crtc_clock_get(struct intel_crtc
*crtc
,
8654 struct intel_crtc_config
*pipe_config
)
8656 struct drm_device
*dev
= crtc
->base
.dev
;
8657 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8658 int pipe
= pipe_config
->cpu_transcoder
;
8659 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
8661 intel_clock_t clock
;
8662 int refclk
= i9xx_pll_refclk(dev
, pipe_config
);
8664 if ((dpll
& DISPLAY_RATE_SELECT_FPA1
) == 0)
8665 fp
= pipe_config
->dpll_hw_state
.fp0
;
8667 fp
= pipe_config
->dpll_hw_state
.fp1
;
8669 clock
.m1
= (fp
& FP_M1_DIV_MASK
) >> FP_M1_DIV_SHIFT
;
8670 if (IS_PINEVIEW(dev
)) {
8671 clock
.n
= ffs((fp
& FP_N_PINEVIEW_DIV_MASK
) >> FP_N_DIV_SHIFT
) - 1;
8672 clock
.m2
= (fp
& FP_M2_PINEVIEW_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
8674 clock
.n
= (fp
& FP_N_DIV_MASK
) >> FP_N_DIV_SHIFT
;
8675 clock
.m2
= (fp
& FP_M2_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
8678 if (!IS_GEN2(dev
)) {
8679 if (IS_PINEVIEW(dev
))
8680 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW
) >>
8681 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
);
8683 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK
) >>
8684 DPLL_FPA01_P1_POST_DIV_SHIFT
);
8686 switch (dpll
& DPLL_MODE_MASK
) {
8687 case DPLLB_MODE_DAC_SERIAL
:
8688 clock
.p2
= dpll
& DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
?
8691 case DPLLB_MODE_LVDS
:
8692 clock
.p2
= dpll
& DPLLB_LVDS_P2_CLOCK_DIV_7
?
8696 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
8697 "mode\n", (int)(dpll
& DPLL_MODE_MASK
));
8701 if (IS_PINEVIEW(dev
))
8702 pineview_clock(refclk
, &clock
);
8704 i9xx_clock(refclk
, &clock
);
8706 u32 lvds
= IS_I830(dev
) ? 0 : I915_READ(LVDS
);
8707 bool is_lvds
= (pipe
== 1) && (lvds
& LVDS_PORT_EN
);
8710 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS
) >>
8711 DPLL_FPA01_P1_POST_DIV_SHIFT
);
8713 if (lvds
& LVDS_CLKB_POWER_UP
)
8718 if (dpll
& PLL_P1_DIVIDE_BY_TWO
)
8721 clock
.p1
= ((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830
) >>
8722 DPLL_FPA01_P1_POST_DIV_SHIFT
) + 2;
8724 if (dpll
& PLL_P2_DIVIDE_BY_4
)
8730 i9xx_clock(refclk
, &clock
);
8734 * This value includes pixel_multiplier. We will use
8735 * port_clock to compute adjusted_mode.crtc_clock in the
8736 * encoder's get_config() function.
8738 pipe_config
->port_clock
= clock
.dot
;
8741 int intel_dotclock_calculate(int link_freq
,
8742 const struct intel_link_m_n
*m_n
)
8745 * The calculation for the data clock is:
8746 * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp
8747 * But we want to avoid losing precison if possible, so:
8748 * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp))
8750 * and the link clock is simpler:
8751 * link_clock = (m * link_clock) / n
8757 return div_u64((u64
)m_n
->link_m
* link_freq
, m_n
->link_n
);
8760 static void ironlake_pch_clock_get(struct intel_crtc
*crtc
,
8761 struct intel_crtc_config
*pipe_config
)
8763 struct drm_device
*dev
= crtc
->base
.dev
;
8765 /* read out port_clock from the DPLL */
8766 i9xx_crtc_clock_get(crtc
, pipe_config
);
8769 * This value does not include pixel_multiplier.
8770 * We will check that port_clock and adjusted_mode.crtc_clock
8771 * agree once we know their relationship in the encoder's
8772 * get_config() function.
8774 pipe_config
->adjusted_mode
.crtc_clock
=
8775 intel_dotclock_calculate(intel_fdi_link_freq(dev
) * 10000,
8776 &pipe_config
->fdi_m_n
);
8779 /** Returns the currently programmed mode of the given pipe. */
8780 struct drm_display_mode
*intel_crtc_mode_get(struct drm_device
*dev
,
8781 struct drm_crtc
*crtc
)
8783 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8784 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8785 enum transcoder cpu_transcoder
= intel_crtc
->config
.cpu_transcoder
;
8786 struct drm_display_mode
*mode
;
8787 struct intel_crtc_config pipe_config
;
8788 int htot
= I915_READ(HTOTAL(cpu_transcoder
));
8789 int hsync
= I915_READ(HSYNC(cpu_transcoder
));
8790 int vtot
= I915_READ(VTOTAL(cpu_transcoder
));
8791 int vsync
= I915_READ(VSYNC(cpu_transcoder
));
8792 enum pipe pipe
= intel_crtc
->pipe
;
8794 mode
= kzalloc(sizeof(*mode
), GFP_KERNEL
);
8799 * Construct a pipe_config sufficient for getting the clock info
8800 * back out of crtc_clock_get.
8802 * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need
8803 * to use a real value here instead.
8805 pipe_config
.cpu_transcoder
= (enum transcoder
) pipe
;
8806 pipe_config
.pixel_multiplier
= 1;
8807 pipe_config
.dpll_hw_state
.dpll
= I915_READ(DPLL(pipe
));
8808 pipe_config
.dpll_hw_state
.fp0
= I915_READ(FP0(pipe
));
8809 pipe_config
.dpll_hw_state
.fp1
= I915_READ(FP1(pipe
));
8810 i9xx_crtc_clock_get(intel_crtc
, &pipe_config
);
8812 mode
->clock
= pipe_config
.port_clock
/ pipe_config
.pixel_multiplier
;
8813 mode
->hdisplay
= (htot
& 0xffff) + 1;
8814 mode
->htotal
= ((htot
& 0xffff0000) >> 16) + 1;
8815 mode
->hsync_start
= (hsync
& 0xffff) + 1;
8816 mode
->hsync_end
= ((hsync
& 0xffff0000) >> 16) + 1;
8817 mode
->vdisplay
= (vtot
& 0xffff) + 1;
8818 mode
->vtotal
= ((vtot
& 0xffff0000) >> 16) + 1;
8819 mode
->vsync_start
= (vsync
& 0xffff) + 1;
8820 mode
->vsync_end
= ((vsync
& 0xffff0000) >> 16) + 1;
8822 drm_mode_set_name(mode
);
8827 static void intel_increase_pllclock(struct drm_device
*dev
,
8830 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8831 int dpll_reg
= DPLL(pipe
);
8834 if (!HAS_GMCH_DISPLAY(dev
))
8837 if (!dev_priv
->lvds_downclock_avail
)
8840 dpll
= I915_READ(dpll_reg
);
8841 if (!HAS_PIPE_CXSR(dev
) && (dpll
& DISPLAY_RATE_SELECT_FPA1
)) {
8842 DRM_DEBUG_DRIVER("upclocking LVDS\n");
8844 assert_panel_unlocked(dev_priv
, pipe
);
8846 dpll
&= ~DISPLAY_RATE_SELECT_FPA1
;
8847 I915_WRITE(dpll_reg
, dpll
);
8848 intel_wait_for_vblank(dev
, pipe
);
8850 dpll
= I915_READ(dpll_reg
);
8851 if (dpll
& DISPLAY_RATE_SELECT_FPA1
)
8852 DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
8856 static void intel_decrease_pllclock(struct drm_crtc
*crtc
)
8858 struct drm_device
*dev
= crtc
->dev
;
8859 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8860 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8862 if (!HAS_GMCH_DISPLAY(dev
))
8865 if (!dev_priv
->lvds_downclock_avail
)
8869 * Since this is called by a timer, we should never get here in
8872 if (!HAS_PIPE_CXSR(dev
) && intel_crtc
->lowfreq_avail
) {
8873 int pipe
= intel_crtc
->pipe
;
8874 int dpll_reg
= DPLL(pipe
);
8877 DRM_DEBUG_DRIVER("downclocking LVDS\n");
8879 assert_panel_unlocked(dev_priv
, pipe
);
8881 dpll
= I915_READ(dpll_reg
);
8882 dpll
|= DISPLAY_RATE_SELECT_FPA1
;
8883 I915_WRITE(dpll_reg
, dpll
);
8884 intel_wait_for_vblank(dev
, pipe
);
8885 dpll
= I915_READ(dpll_reg
);
8886 if (!(dpll
& DISPLAY_RATE_SELECT_FPA1
))
8887 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
8892 void intel_mark_busy(struct drm_device
*dev
)
8894 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8896 if (dev_priv
->mm
.busy
)
8899 intel_runtime_pm_get(dev_priv
);
8900 i915_update_gfx_val(dev_priv
);
8901 dev_priv
->mm
.busy
= true;
8904 void intel_mark_idle(struct drm_device
*dev
)
8906 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8907 struct drm_crtc
*crtc
;
8909 if (!dev_priv
->mm
.busy
)
8912 dev_priv
->mm
.busy
= false;
8914 if (!i915
.powersave
)
8917 for_each_crtc(dev
, crtc
) {
8918 if (!crtc
->primary
->fb
)
8921 intel_decrease_pllclock(crtc
);
8924 if (INTEL_INFO(dev
)->gen
>= 6)
8925 gen6_rps_idle(dev
->dev_private
);
8928 intel_runtime_pm_put(dev_priv
);
8933 * intel_mark_fb_busy - mark given planes as busy
8935 * @frontbuffer_bits: bits for the affected planes
8936 * @ring: optional ring for asynchronous commands
8938 * This function gets called every time the screen contents change. It can be
8939 * used to keep e.g. the update rate at the nominal refresh rate with DRRS.
8941 static void intel_mark_fb_busy(struct drm_device
*dev
,
8942 unsigned frontbuffer_bits
,
8943 struct intel_engine_cs
*ring
)
8947 if (!i915
.powersave
)
8950 for_each_pipe(pipe
) {
8951 if (!(frontbuffer_bits
& INTEL_FRONTBUFFER_ALL_MASK(pipe
)))
8954 intel_increase_pllclock(dev
, pipe
);
8955 if (ring
&& intel_fbc_enabled(dev
))
8956 ring
->fbc_dirty
= true;
8961 * intel_fb_obj_invalidate - invalidate frontbuffer object
8962 * @obj: GEM object to invalidate
8963 * @ring: set for asynchronous rendering
8965 * This function gets called every time rendering on the given object starts and
8966 * frontbuffer caching (fbc, low refresh rate for DRRS, panel self refresh) must
8967 * be invalidated. If @ring is non-NULL any subsequent invalidation will be delayed
8968 * until the rendering completes or a flip on this frontbuffer plane is
8971 void intel_fb_obj_invalidate(struct drm_i915_gem_object
*obj
,
8972 struct intel_engine_cs
*ring
)
8974 struct drm_device
*dev
= obj
->base
.dev
;
8975 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8977 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
8979 if (!obj
->frontbuffer_bits
)
8983 mutex_lock(&dev_priv
->fb_tracking
.lock
);
8984 dev_priv
->fb_tracking
.busy_bits
8985 |= obj
->frontbuffer_bits
;
8986 dev_priv
->fb_tracking
.flip_bits
8987 &= ~obj
->frontbuffer_bits
;
8988 mutex_unlock(&dev_priv
->fb_tracking
.lock
);
8991 intel_mark_fb_busy(dev
, obj
->frontbuffer_bits
, ring
);
8993 intel_edp_psr_invalidate(dev
, obj
->frontbuffer_bits
);
8997 * intel_frontbuffer_flush - flush frontbuffer
8999 * @frontbuffer_bits: frontbuffer plane tracking bits
9001 * This function gets called every time rendering on the given planes has
9002 * completed and frontbuffer caching can be started again. Flushes will get
9003 * delayed if they're blocked by some oustanding asynchronous rendering.
9005 * Can be called without any locks held.
9007 void intel_frontbuffer_flush(struct drm_device
*dev
,
9008 unsigned frontbuffer_bits
)
9010 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9012 /* Delay flushing when rings are still busy.*/
9013 mutex_lock(&dev_priv
->fb_tracking
.lock
);
9014 frontbuffer_bits
&= ~dev_priv
->fb_tracking
.busy_bits
;
9015 mutex_unlock(&dev_priv
->fb_tracking
.lock
);
9017 intel_mark_fb_busy(dev
, frontbuffer_bits
, NULL
);
9019 intel_edp_psr_flush(dev
, frontbuffer_bits
);
9023 * intel_fb_obj_flush - flush frontbuffer object
9024 * @obj: GEM object to flush
9025 * @retire: set when retiring asynchronous rendering
9027 * This function gets called every time rendering on the given object has
9028 * completed and frontbuffer caching can be started again. If @retire is true
9029 * then any delayed flushes will be unblocked.
9031 void intel_fb_obj_flush(struct drm_i915_gem_object
*obj
,
9034 struct drm_device
*dev
= obj
->base
.dev
;
9035 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9036 unsigned frontbuffer_bits
;
9038 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
9040 if (!obj
->frontbuffer_bits
)
9043 frontbuffer_bits
= obj
->frontbuffer_bits
;
9046 mutex_lock(&dev_priv
->fb_tracking
.lock
);
9047 /* Filter out new bits since rendering started. */
9048 frontbuffer_bits
&= dev_priv
->fb_tracking
.busy_bits
;
9050 dev_priv
->fb_tracking
.busy_bits
&= ~frontbuffer_bits
;
9051 mutex_unlock(&dev_priv
->fb_tracking
.lock
);
9054 intel_frontbuffer_flush(dev
, frontbuffer_bits
);
9058 * intel_frontbuffer_flip_prepare - prepare asnychronous frontbuffer flip
9060 * @frontbuffer_bits: frontbuffer plane tracking bits
9062 * This function gets called after scheduling a flip on @obj. The actual
9063 * frontbuffer flushing will be delayed until completion is signalled with
9064 * intel_frontbuffer_flip_complete. If an invalidate happens in between this
9065 * flush will be cancelled.
9067 * Can be called without any locks held.
9069 void intel_frontbuffer_flip_prepare(struct drm_device
*dev
,
9070 unsigned frontbuffer_bits
)
9072 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9074 mutex_lock(&dev_priv
->fb_tracking
.lock
);
9075 dev_priv
->fb_tracking
.flip_bits
9076 |= frontbuffer_bits
;
9077 mutex_unlock(&dev_priv
->fb_tracking
.lock
);
9081 * intel_frontbuffer_flip_complete - complete asynchronous frontbuffer flush
9083 * @frontbuffer_bits: frontbuffer plane tracking bits
9085 * This function gets called after the flip has been latched and will complete
9086 * on the next vblank. It will execute the fush if it hasn't been cancalled yet.
9088 * Can be called without any locks held.
9090 void intel_frontbuffer_flip_complete(struct drm_device
*dev
,
9091 unsigned frontbuffer_bits
)
9093 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9095 mutex_lock(&dev_priv
->fb_tracking
.lock
);
9096 /* Mask any cancelled flips. */
9097 frontbuffer_bits
&= dev_priv
->fb_tracking
.flip_bits
;
9098 dev_priv
->fb_tracking
.flip_bits
&= ~frontbuffer_bits
;
9099 mutex_unlock(&dev_priv
->fb_tracking
.lock
);
9101 intel_frontbuffer_flush(dev
, frontbuffer_bits
);
9104 static void intel_crtc_destroy(struct drm_crtc
*crtc
)
9106 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9107 struct drm_device
*dev
= crtc
->dev
;
9108 struct intel_unpin_work
*work
;
9109 unsigned long flags
;
9111 spin_lock_irqsave(&dev
->event_lock
, flags
);
9112 work
= intel_crtc
->unpin_work
;
9113 intel_crtc
->unpin_work
= NULL
;
9114 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9117 cancel_work_sync(&work
->work
);
9121 drm_crtc_cleanup(crtc
);
9126 static void intel_unpin_work_fn(struct work_struct
*__work
)
9128 struct intel_unpin_work
*work
=
9129 container_of(__work
, struct intel_unpin_work
, work
);
9130 struct drm_device
*dev
= work
->crtc
->dev
;
9131 enum pipe pipe
= to_intel_crtc(work
->crtc
)->pipe
;
9133 mutex_lock(&dev
->struct_mutex
);
9134 intel_unpin_fb_obj(work
->old_fb_obj
);
9135 drm_gem_object_unreference(&work
->pending_flip_obj
->base
);
9136 drm_gem_object_unreference(&work
->old_fb_obj
->base
);
9138 intel_update_fbc(dev
);
9139 mutex_unlock(&dev
->struct_mutex
);
9141 intel_frontbuffer_flip_complete(dev
, INTEL_FRONTBUFFER_PRIMARY(pipe
));
9143 BUG_ON(atomic_read(&to_intel_crtc(work
->crtc
)->unpin_work_count
) == 0);
9144 atomic_dec(&to_intel_crtc(work
->crtc
)->unpin_work_count
);
9149 static void do_intel_finish_page_flip(struct drm_device
*dev
,
9150 struct drm_crtc
*crtc
)
9152 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9153 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9154 struct intel_unpin_work
*work
;
9155 unsigned long flags
;
9157 /* Ignore early vblank irqs */
9158 if (intel_crtc
== NULL
)
9161 spin_lock_irqsave(&dev
->event_lock
, flags
);
9162 work
= intel_crtc
->unpin_work
;
9164 /* Ensure we don't miss a work->pending update ... */
9167 if (work
== NULL
|| atomic_read(&work
->pending
) < INTEL_FLIP_COMPLETE
) {
9168 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9172 /* and that the unpin work is consistent wrt ->pending. */
9175 intel_crtc
->unpin_work
= NULL
;
9178 drm_send_vblank_event(dev
, intel_crtc
->pipe
, work
->event
);
9180 drm_crtc_vblank_put(crtc
);
9182 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9184 wake_up_all(&dev_priv
->pending_flip_queue
);
9186 queue_work(dev_priv
->wq
, &work
->work
);
9188 trace_i915_flip_complete(intel_crtc
->plane
, work
->pending_flip_obj
);
9191 void intel_finish_page_flip(struct drm_device
*dev
, int pipe
)
9193 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9194 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
9196 do_intel_finish_page_flip(dev
, crtc
);
9199 void intel_finish_page_flip_plane(struct drm_device
*dev
, int plane
)
9201 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9202 struct drm_crtc
*crtc
= dev_priv
->plane_to_crtc_mapping
[plane
];
9204 do_intel_finish_page_flip(dev
, crtc
);
9207 /* Is 'a' after or equal to 'b'? */
9208 static bool g4x_flip_count_after_eq(u32 a
, u32 b
)
9210 return !((a
- b
) & 0x80000000);
9213 static bool page_flip_finished(struct intel_crtc
*crtc
)
9215 struct drm_device
*dev
= crtc
->base
.dev
;
9216 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9219 * The relevant registers doen't exist on pre-ctg.
9220 * As the flip done interrupt doesn't trigger for mmio
9221 * flips on gmch platforms, a flip count check isn't
9222 * really needed there. But since ctg has the registers,
9223 * include it in the check anyway.
9225 if (INTEL_INFO(dev
)->gen
< 5 && !IS_G4X(dev
))
9229 * A DSPSURFLIVE check isn't enough in case the mmio and CS flips
9230 * used the same base address. In that case the mmio flip might
9231 * have completed, but the CS hasn't even executed the flip yet.
9233 * A flip count check isn't enough as the CS might have updated
9234 * the base address just after start of vblank, but before we
9235 * managed to process the interrupt. This means we'd complete the
9238 * Combining both checks should get us a good enough result. It may
9239 * still happen that the CS flip has been executed, but has not
9240 * yet actually completed. But in case the base address is the same
9241 * anyway, we don't really care.
9243 return (I915_READ(DSPSURFLIVE(crtc
->plane
)) & ~0xfff) ==
9244 crtc
->unpin_work
->gtt_offset
&&
9245 g4x_flip_count_after_eq(I915_READ(PIPE_FLIPCOUNT_GM45(crtc
->pipe
)),
9246 crtc
->unpin_work
->flip_count
);
9249 void intel_prepare_page_flip(struct drm_device
*dev
, int plane
)
9251 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9252 struct intel_crtc
*intel_crtc
=
9253 to_intel_crtc(dev_priv
->plane_to_crtc_mapping
[plane
]);
9254 unsigned long flags
;
9256 /* NB: An MMIO update of the plane base pointer will also
9257 * generate a page-flip completion irq, i.e. every modeset
9258 * is also accompanied by a spurious intel_prepare_page_flip().
9260 spin_lock_irqsave(&dev
->event_lock
, flags
);
9261 if (intel_crtc
->unpin_work
&& page_flip_finished(intel_crtc
))
9262 atomic_inc_not_zero(&intel_crtc
->unpin_work
->pending
);
9263 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9266 static inline void intel_mark_page_flip_active(struct intel_crtc
*intel_crtc
)
9268 /* Ensure that the work item is consistent when activating it ... */
9270 atomic_set(&intel_crtc
->unpin_work
->pending
, INTEL_FLIP_PENDING
);
9271 /* and that it is marked active as soon as the irq could fire. */
9275 static int intel_gen2_queue_flip(struct drm_device
*dev
,
9276 struct drm_crtc
*crtc
,
9277 struct drm_framebuffer
*fb
,
9278 struct drm_i915_gem_object
*obj
,
9279 struct intel_engine_cs
*ring
,
9282 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9286 ret
= intel_ring_begin(ring
, 6);
9290 /* Can't queue multiple flips, so wait for the previous
9291 * one to finish before executing the next.
9293 if (intel_crtc
->plane
)
9294 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
9296 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
9297 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
9298 intel_ring_emit(ring
, MI_NOOP
);
9299 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
9300 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
9301 intel_ring_emit(ring
, fb
->pitches
[0]);
9302 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9303 intel_ring_emit(ring
, 0); /* aux display base address, unused */
9305 intel_mark_page_flip_active(intel_crtc
);
9306 __intel_ring_advance(ring
);
9310 static int intel_gen3_queue_flip(struct drm_device
*dev
,
9311 struct drm_crtc
*crtc
,
9312 struct drm_framebuffer
*fb
,
9313 struct drm_i915_gem_object
*obj
,
9314 struct intel_engine_cs
*ring
,
9317 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9321 ret
= intel_ring_begin(ring
, 6);
9325 if (intel_crtc
->plane
)
9326 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
9328 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
9329 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
9330 intel_ring_emit(ring
, MI_NOOP
);
9331 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
|
9332 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
9333 intel_ring_emit(ring
, fb
->pitches
[0]);
9334 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9335 intel_ring_emit(ring
, MI_NOOP
);
9337 intel_mark_page_flip_active(intel_crtc
);
9338 __intel_ring_advance(ring
);
9342 static int intel_gen4_queue_flip(struct drm_device
*dev
,
9343 struct drm_crtc
*crtc
,
9344 struct drm_framebuffer
*fb
,
9345 struct drm_i915_gem_object
*obj
,
9346 struct intel_engine_cs
*ring
,
9349 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9350 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9351 uint32_t pf
, pipesrc
;
9354 ret
= intel_ring_begin(ring
, 4);
9358 /* i965+ uses the linear or tiled offsets from the
9359 * Display Registers (which do not change across a page-flip)
9360 * so we need only reprogram the base address.
9362 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
9363 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
9364 intel_ring_emit(ring
, fb
->pitches
[0]);
9365 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
|
9368 /* XXX Enabling the panel-fitter across page-flip is so far
9369 * untested on non-native modes, so ignore it for now.
9370 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
9373 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
9374 intel_ring_emit(ring
, pf
| pipesrc
);
9376 intel_mark_page_flip_active(intel_crtc
);
9377 __intel_ring_advance(ring
);
9381 static int intel_gen6_queue_flip(struct drm_device
*dev
,
9382 struct drm_crtc
*crtc
,
9383 struct drm_framebuffer
*fb
,
9384 struct drm_i915_gem_object
*obj
,
9385 struct intel_engine_cs
*ring
,
9388 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9389 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9390 uint32_t pf
, pipesrc
;
9393 ret
= intel_ring_begin(ring
, 4);
9397 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
9398 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
9399 intel_ring_emit(ring
, fb
->pitches
[0] | obj
->tiling_mode
);
9400 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9402 /* Contrary to the suggestions in the documentation,
9403 * "Enable Panel Fitter" does not seem to be required when page
9404 * flipping with a non-native mode, and worse causes a normal
9406 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
9409 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
9410 intel_ring_emit(ring
, pf
| pipesrc
);
9412 intel_mark_page_flip_active(intel_crtc
);
9413 __intel_ring_advance(ring
);
9417 static int intel_gen7_queue_flip(struct drm_device
*dev
,
9418 struct drm_crtc
*crtc
,
9419 struct drm_framebuffer
*fb
,
9420 struct drm_i915_gem_object
*obj
,
9421 struct intel_engine_cs
*ring
,
9424 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9425 uint32_t plane_bit
= 0;
9428 switch (intel_crtc
->plane
) {
9430 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_A
;
9433 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_B
;
9436 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_C
;
9439 WARN_ONCE(1, "unknown plane in flip command\n");
9444 if (ring
->id
== RCS
) {
9447 * On Gen 8, SRM is now taking an extra dword to accommodate
9448 * 48bits addresses, and we need a NOOP for the batch size to
9456 * BSpec MI_DISPLAY_FLIP for IVB:
9457 * "The full packet must be contained within the same cache line."
9459 * Currently the LRI+SRM+MI_DISPLAY_FLIP all fit within the same
9460 * cacheline, if we ever start emitting more commands before
9461 * the MI_DISPLAY_FLIP we may need to first emit everything else,
9462 * then do the cacheline alignment, and finally emit the
9465 ret
= intel_ring_cacheline_align(ring
);
9469 ret
= intel_ring_begin(ring
, len
);
9473 /* Unmask the flip-done completion message. Note that the bspec says that
9474 * we should do this for both the BCS and RCS, and that we must not unmask
9475 * more than one flip event at any time (or ensure that one flip message
9476 * can be sent by waiting for flip-done prior to queueing new flips).
9477 * Experimentation says that BCS works despite DERRMR masking all
9478 * flip-done completion events and that unmasking all planes at once
9479 * for the RCS also doesn't appear to drop events. Setting the DERRMR
9480 * to zero does lead to lockups within MI_DISPLAY_FLIP.
9482 if (ring
->id
== RCS
) {
9483 intel_ring_emit(ring
, MI_LOAD_REGISTER_IMM(1));
9484 intel_ring_emit(ring
, DERRMR
);
9485 intel_ring_emit(ring
, ~(DERRMR_PIPEA_PRI_FLIP_DONE
|
9486 DERRMR_PIPEB_PRI_FLIP_DONE
|
9487 DERRMR_PIPEC_PRI_FLIP_DONE
));
9489 intel_ring_emit(ring
, MI_STORE_REGISTER_MEM_GEN8(1) |
9490 MI_SRM_LRM_GLOBAL_GTT
);
9492 intel_ring_emit(ring
, MI_STORE_REGISTER_MEM(1) |
9493 MI_SRM_LRM_GLOBAL_GTT
);
9494 intel_ring_emit(ring
, DERRMR
);
9495 intel_ring_emit(ring
, ring
->scratch
.gtt_offset
+ 256);
9497 intel_ring_emit(ring
, 0);
9498 intel_ring_emit(ring
, MI_NOOP
);
9502 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
| plane_bit
);
9503 intel_ring_emit(ring
, (fb
->pitches
[0] | obj
->tiling_mode
));
9504 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9505 intel_ring_emit(ring
, (MI_NOOP
));
9507 intel_mark_page_flip_active(intel_crtc
);
9508 __intel_ring_advance(ring
);
9512 static bool use_mmio_flip(struct intel_engine_cs
*ring
,
9513 struct drm_i915_gem_object
*obj
)
9516 * This is not being used for older platforms, because
9517 * non-availability of flip done interrupt forces us to use
9518 * CS flips. Older platforms derive flip done using some clever
9519 * tricks involving the flip_pending status bits and vblank irqs.
9520 * So using MMIO flips there would disrupt this mechanism.
9526 if (INTEL_INFO(ring
->dev
)->gen
< 5)
9529 if (i915
.use_mmio_flip
< 0)
9531 else if (i915
.use_mmio_flip
> 0)
9534 return ring
!= obj
->ring
;
9537 static void intel_do_mmio_flip(struct intel_crtc
*intel_crtc
)
9539 struct drm_device
*dev
= intel_crtc
->base
.dev
;
9540 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9541 struct intel_framebuffer
*intel_fb
=
9542 to_intel_framebuffer(intel_crtc
->base
.primary
->fb
);
9543 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
9547 intel_mark_page_flip_active(intel_crtc
);
9549 reg
= DSPCNTR(intel_crtc
->plane
);
9550 dspcntr
= I915_READ(reg
);
9552 if (INTEL_INFO(dev
)->gen
>= 4) {
9553 if (obj
->tiling_mode
!= I915_TILING_NONE
)
9554 dspcntr
|= DISPPLANE_TILED
;
9556 dspcntr
&= ~DISPPLANE_TILED
;
9558 I915_WRITE(reg
, dspcntr
);
9560 I915_WRITE(DSPSURF(intel_crtc
->plane
),
9561 intel_crtc
->unpin_work
->gtt_offset
);
9562 POSTING_READ(DSPSURF(intel_crtc
->plane
));
9565 static int intel_postpone_flip(struct drm_i915_gem_object
*obj
)
9567 struct intel_engine_cs
*ring
;
9570 lockdep_assert_held(&obj
->base
.dev
->struct_mutex
);
9572 if (!obj
->last_write_seqno
)
9577 if (i915_seqno_passed(ring
->get_seqno(ring
, true),
9578 obj
->last_write_seqno
))
9581 ret
= i915_gem_check_olr(ring
, obj
->last_write_seqno
);
9585 if (WARN_ON(!ring
->irq_get(ring
)))
9591 void intel_notify_mmio_flip(struct intel_engine_cs
*ring
)
9593 struct drm_i915_private
*dev_priv
= to_i915(ring
->dev
);
9594 struct intel_crtc
*intel_crtc
;
9595 unsigned long irq_flags
;
9598 seqno
= ring
->get_seqno(ring
, false);
9600 spin_lock_irqsave(&dev_priv
->mmio_flip_lock
, irq_flags
);
9601 for_each_intel_crtc(ring
->dev
, intel_crtc
) {
9602 struct intel_mmio_flip
*mmio_flip
;
9604 mmio_flip
= &intel_crtc
->mmio_flip
;
9605 if (mmio_flip
->seqno
== 0)
9608 if (ring
->id
!= mmio_flip
->ring_id
)
9611 if (i915_seqno_passed(seqno
, mmio_flip
->seqno
)) {
9612 intel_do_mmio_flip(intel_crtc
);
9613 mmio_flip
->seqno
= 0;
9614 ring
->irq_put(ring
);
9617 spin_unlock_irqrestore(&dev_priv
->mmio_flip_lock
, irq_flags
);
9620 static int intel_queue_mmio_flip(struct drm_device
*dev
,
9621 struct drm_crtc
*crtc
,
9622 struct drm_framebuffer
*fb
,
9623 struct drm_i915_gem_object
*obj
,
9624 struct intel_engine_cs
*ring
,
9627 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9628 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9629 unsigned long irq_flags
;
9632 if (WARN_ON(intel_crtc
->mmio_flip
.seqno
))
9635 ret
= intel_postpone_flip(obj
);
9639 intel_do_mmio_flip(intel_crtc
);
9643 spin_lock_irqsave(&dev_priv
->mmio_flip_lock
, irq_flags
);
9644 intel_crtc
->mmio_flip
.seqno
= obj
->last_write_seqno
;
9645 intel_crtc
->mmio_flip
.ring_id
= obj
->ring
->id
;
9646 spin_unlock_irqrestore(&dev_priv
->mmio_flip_lock
, irq_flags
);
9649 * Double check to catch cases where irq fired before
9650 * mmio flip data was ready
9652 intel_notify_mmio_flip(obj
->ring
);
9656 static int intel_default_queue_flip(struct drm_device
*dev
,
9657 struct drm_crtc
*crtc
,
9658 struct drm_framebuffer
*fb
,
9659 struct drm_i915_gem_object
*obj
,
9660 struct intel_engine_cs
*ring
,
9666 static int intel_crtc_page_flip(struct drm_crtc
*crtc
,
9667 struct drm_framebuffer
*fb
,
9668 struct drm_pending_vblank_event
*event
,
9669 uint32_t page_flip_flags
)
9671 struct drm_device
*dev
= crtc
->dev
;
9672 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9673 struct drm_framebuffer
*old_fb
= crtc
->primary
->fb
;
9674 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
9675 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9676 enum pipe pipe
= intel_crtc
->pipe
;
9677 struct intel_unpin_work
*work
;
9678 struct intel_engine_cs
*ring
;
9679 unsigned long flags
;
9683 * drm_mode_page_flip_ioctl() should already catch this, but double
9684 * check to be safe. In the future we may enable pageflipping from
9685 * a disabled primary plane.
9687 if (WARN_ON(intel_fb_obj(old_fb
) == NULL
))
9690 /* Can't change pixel format via MI display flips. */
9691 if (fb
->pixel_format
!= crtc
->primary
->fb
->pixel_format
)
9695 * TILEOFF/LINOFF registers can't be changed via MI display flips.
9696 * Note that pitch changes could also affect these register.
9698 if (INTEL_INFO(dev
)->gen
> 3 &&
9699 (fb
->offsets
[0] != crtc
->primary
->fb
->offsets
[0] ||
9700 fb
->pitches
[0] != crtc
->primary
->fb
->pitches
[0]))
9703 if (i915_terminally_wedged(&dev_priv
->gpu_error
))
9706 work
= kzalloc(sizeof(*work
), GFP_KERNEL
);
9710 work
->event
= event
;
9712 work
->old_fb_obj
= intel_fb_obj(old_fb
);
9713 INIT_WORK(&work
->work
, intel_unpin_work_fn
);
9715 ret
= drm_crtc_vblank_get(crtc
);
9719 /* We borrow the event spin lock for protecting unpin_work */
9720 spin_lock_irqsave(&dev
->event_lock
, flags
);
9721 if (intel_crtc
->unpin_work
) {
9722 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9724 drm_crtc_vblank_put(crtc
);
9726 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
9729 intel_crtc
->unpin_work
= work
;
9730 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9732 if (atomic_read(&intel_crtc
->unpin_work_count
) >= 2)
9733 flush_workqueue(dev_priv
->wq
);
9735 ret
= i915_mutex_lock_interruptible(dev
);
9739 /* Reference the objects for the scheduled work. */
9740 drm_gem_object_reference(&work
->old_fb_obj
->base
);
9741 drm_gem_object_reference(&obj
->base
);
9743 crtc
->primary
->fb
= fb
;
9745 work
->pending_flip_obj
= obj
;
9747 work
->enable_stall_check
= true;
9749 atomic_inc(&intel_crtc
->unpin_work_count
);
9750 intel_crtc
->reset_counter
= atomic_read(&dev_priv
->gpu_error
.reset_counter
);
9752 if (INTEL_INFO(dev
)->gen
>= 5 || IS_G4X(dev
))
9753 work
->flip_count
= I915_READ(PIPE_FLIPCOUNT_GM45(pipe
)) + 1;
9755 if (IS_VALLEYVIEW(dev
)) {
9756 ring
= &dev_priv
->ring
[BCS
];
9757 if (obj
->tiling_mode
!= work
->old_fb_obj
->tiling_mode
)
9758 /* vlv: DISPLAY_FLIP fails to change tiling */
9760 } else if (IS_IVYBRIDGE(dev
)) {
9761 ring
= &dev_priv
->ring
[BCS
];
9762 } else if (INTEL_INFO(dev
)->gen
>= 7) {
9764 if (ring
== NULL
|| ring
->id
!= RCS
)
9765 ring
= &dev_priv
->ring
[BCS
];
9767 ring
= &dev_priv
->ring
[RCS
];
9770 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
9772 goto cleanup_pending
;
9775 i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
;
9777 if (use_mmio_flip(ring
, obj
))
9778 ret
= intel_queue_mmio_flip(dev
, crtc
, fb
, obj
, ring
,
9781 ret
= dev_priv
->display
.queue_flip(dev
, crtc
, fb
, obj
, ring
,
9786 i915_gem_track_fb(work
->old_fb_obj
, obj
,
9787 INTEL_FRONTBUFFER_PRIMARY(pipe
));
9789 intel_disable_fbc(dev
);
9790 intel_frontbuffer_flip_prepare(dev
, INTEL_FRONTBUFFER_PRIMARY(pipe
));
9791 mutex_unlock(&dev
->struct_mutex
);
9793 trace_i915_flip_request(intel_crtc
->plane
, obj
);
9798 intel_unpin_fb_obj(obj
);
9800 atomic_dec(&intel_crtc
->unpin_work_count
);
9801 crtc
->primary
->fb
= old_fb
;
9802 drm_gem_object_unreference(&work
->old_fb_obj
->base
);
9803 drm_gem_object_unreference(&obj
->base
);
9804 mutex_unlock(&dev
->struct_mutex
);
9807 spin_lock_irqsave(&dev
->event_lock
, flags
);
9808 intel_crtc
->unpin_work
= NULL
;
9809 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9811 drm_crtc_vblank_put(crtc
);
9817 intel_crtc_wait_for_pending_flips(crtc
);
9818 ret
= intel_pipe_set_base(crtc
, crtc
->x
, crtc
->y
, fb
);
9819 if (ret
== 0 && event
)
9820 drm_send_vblank_event(dev
, pipe
, event
);
9825 static struct drm_crtc_helper_funcs intel_helper_funcs
= {
9826 .mode_set_base_atomic
= intel_pipe_set_base_atomic
,
9827 .load_lut
= intel_crtc_load_lut
,
9831 * intel_modeset_update_staged_output_state
9833 * Updates the staged output configuration state, e.g. after we've read out the
9836 static void intel_modeset_update_staged_output_state(struct drm_device
*dev
)
9838 struct intel_crtc
*crtc
;
9839 struct intel_encoder
*encoder
;
9840 struct intel_connector
*connector
;
9842 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
9844 connector
->new_encoder
=
9845 to_intel_encoder(connector
->base
.encoder
);
9848 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
9851 to_intel_crtc(encoder
->base
.crtc
);
9854 for_each_intel_crtc(dev
, crtc
) {
9855 crtc
->new_enabled
= crtc
->base
.enabled
;
9857 if (crtc
->new_enabled
)
9858 crtc
->new_config
= &crtc
->config
;
9860 crtc
->new_config
= NULL
;
9865 * intel_modeset_commit_output_state
9867 * This function copies the stage display pipe configuration to the real one.
9869 static void intel_modeset_commit_output_state(struct drm_device
*dev
)
9871 struct intel_crtc
*crtc
;
9872 struct intel_encoder
*encoder
;
9873 struct intel_connector
*connector
;
9875 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
9877 connector
->base
.encoder
= &connector
->new_encoder
->base
;
9880 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
9882 encoder
->base
.crtc
= &encoder
->new_crtc
->base
;
9885 for_each_intel_crtc(dev
, crtc
) {
9886 crtc
->base
.enabled
= crtc
->new_enabled
;
9891 connected_sink_compute_bpp(struct intel_connector
*connector
,
9892 struct intel_crtc_config
*pipe_config
)
9894 int bpp
= pipe_config
->pipe_bpp
;
9896 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n",
9897 connector
->base
.base
.id
,
9898 connector
->base
.name
);
9900 /* Don't use an invalid EDID bpc value */
9901 if (connector
->base
.display_info
.bpc
&&
9902 connector
->base
.display_info
.bpc
* 3 < bpp
) {
9903 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
9904 bpp
, connector
->base
.display_info
.bpc
*3);
9905 pipe_config
->pipe_bpp
= connector
->base
.display_info
.bpc
*3;
9908 /* Clamp bpp to 8 on screens without EDID 1.4 */
9909 if (connector
->base
.display_info
.bpc
== 0 && bpp
> 24) {
9910 DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
9912 pipe_config
->pipe_bpp
= 24;
9917 compute_baseline_pipe_bpp(struct intel_crtc
*crtc
,
9918 struct drm_framebuffer
*fb
,
9919 struct intel_crtc_config
*pipe_config
)
9921 struct drm_device
*dev
= crtc
->base
.dev
;
9922 struct intel_connector
*connector
;
9925 switch (fb
->pixel_format
) {
9927 bpp
= 8*3; /* since we go through a colormap */
9929 case DRM_FORMAT_XRGB1555
:
9930 case DRM_FORMAT_ARGB1555
:
9931 /* checked in intel_framebuffer_init already */
9932 if (WARN_ON(INTEL_INFO(dev
)->gen
> 3))
9934 case DRM_FORMAT_RGB565
:
9935 bpp
= 6*3; /* min is 18bpp */
9937 case DRM_FORMAT_XBGR8888
:
9938 case DRM_FORMAT_ABGR8888
:
9939 /* checked in intel_framebuffer_init already */
9940 if (WARN_ON(INTEL_INFO(dev
)->gen
< 4))
9942 case DRM_FORMAT_XRGB8888
:
9943 case DRM_FORMAT_ARGB8888
:
9946 case DRM_FORMAT_XRGB2101010
:
9947 case DRM_FORMAT_ARGB2101010
:
9948 case DRM_FORMAT_XBGR2101010
:
9949 case DRM_FORMAT_ABGR2101010
:
9950 /* checked in intel_framebuffer_init already */
9951 if (WARN_ON(INTEL_INFO(dev
)->gen
< 4))
9955 /* TODO: gen4+ supports 16 bpc floating point, too. */
9957 DRM_DEBUG_KMS("unsupported depth\n");
9961 pipe_config
->pipe_bpp
= bpp
;
9963 /* Clamp display bpp to EDID value */
9964 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
9966 if (!connector
->new_encoder
||
9967 connector
->new_encoder
->new_crtc
!= crtc
)
9970 connected_sink_compute_bpp(connector
, pipe_config
);
9976 static void intel_dump_crtc_timings(const struct drm_display_mode
*mode
)
9978 DRM_DEBUG_KMS("crtc timings: %d %d %d %d %d %d %d %d %d, "
9979 "type: 0x%x flags: 0x%x\n",
9981 mode
->crtc_hdisplay
, mode
->crtc_hsync_start
,
9982 mode
->crtc_hsync_end
, mode
->crtc_htotal
,
9983 mode
->crtc_vdisplay
, mode
->crtc_vsync_start
,
9984 mode
->crtc_vsync_end
, mode
->crtc_vtotal
, mode
->type
, mode
->flags
);
9987 static void intel_dump_pipe_config(struct intel_crtc
*crtc
,
9988 struct intel_crtc_config
*pipe_config
,
9989 const char *context
)
9991 DRM_DEBUG_KMS("[CRTC:%d]%s config for pipe %c\n", crtc
->base
.base
.id
,
9992 context
, pipe_name(crtc
->pipe
));
9994 DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config
->cpu_transcoder
));
9995 DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n",
9996 pipe_config
->pipe_bpp
, pipe_config
->dither
);
9997 DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
9998 pipe_config
->has_pch_encoder
,
9999 pipe_config
->fdi_lanes
,
10000 pipe_config
->fdi_m_n
.gmch_m
, pipe_config
->fdi_m_n
.gmch_n
,
10001 pipe_config
->fdi_m_n
.link_m
, pipe_config
->fdi_m_n
.link_n
,
10002 pipe_config
->fdi_m_n
.tu
);
10003 DRM_DEBUG_KMS("dp: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
10004 pipe_config
->has_dp_encoder
,
10005 pipe_config
->dp_m_n
.gmch_m
, pipe_config
->dp_m_n
.gmch_n
,
10006 pipe_config
->dp_m_n
.link_m
, pipe_config
->dp_m_n
.link_n
,
10007 pipe_config
->dp_m_n
.tu
);
10008 DRM_DEBUG_KMS("requested mode:\n");
10009 drm_mode_debug_printmodeline(&pipe_config
->requested_mode
);
10010 DRM_DEBUG_KMS("adjusted mode:\n");
10011 drm_mode_debug_printmodeline(&pipe_config
->adjusted_mode
);
10012 intel_dump_crtc_timings(&pipe_config
->adjusted_mode
);
10013 DRM_DEBUG_KMS("port clock: %d\n", pipe_config
->port_clock
);
10014 DRM_DEBUG_KMS("pipe src size: %dx%d\n",
10015 pipe_config
->pipe_src_w
, pipe_config
->pipe_src_h
);
10016 DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n",
10017 pipe_config
->gmch_pfit
.control
,
10018 pipe_config
->gmch_pfit
.pgm_ratios
,
10019 pipe_config
->gmch_pfit
.lvds_border_bits
);
10020 DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n",
10021 pipe_config
->pch_pfit
.pos
,
10022 pipe_config
->pch_pfit
.size
,
10023 pipe_config
->pch_pfit
.enabled
? "enabled" : "disabled");
10024 DRM_DEBUG_KMS("ips: %i\n", pipe_config
->ips_enabled
);
10025 DRM_DEBUG_KMS("double wide: %i\n", pipe_config
->double_wide
);
10028 static bool encoders_cloneable(const struct intel_encoder
*a
,
10029 const struct intel_encoder
*b
)
10031 /* masks could be asymmetric, so check both ways */
10032 return a
== b
|| (a
->cloneable
& (1 << b
->type
) &&
10033 b
->cloneable
& (1 << a
->type
));
10036 static bool check_single_encoder_cloning(struct intel_crtc
*crtc
,
10037 struct intel_encoder
*encoder
)
10039 struct drm_device
*dev
= crtc
->base
.dev
;
10040 struct intel_encoder
*source_encoder
;
10042 list_for_each_entry(source_encoder
,
10043 &dev
->mode_config
.encoder_list
, base
.head
) {
10044 if (source_encoder
->new_crtc
!= crtc
)
10047 if (!encoders_cloneable(encoder
, source_encoder
))
10054 static bool check_encoder_cloning(struct intel_crtc
*crtc
)
10056 struct drm_device
*dev
= crtc
->base
.dev
;
10057 struct intel_encoder
*encoder
;
10059 list_for_each_entry(encoder
,
10060 &dev
->mode_config
.encoder_list
, base
.head
) {
10061 if (encoder
->new_crtc
!= crtc
)
10064 if (!check_single_encoder_cloning(crtc
, encoder
))
10071 static struct intel_crtc_config
*
10072 intel_modeset_pipe_config(struct drm_crtc
*crtc
,
10073 struct drm_framebuffer
*fb
,
10074 struct drm_display_mode
*mode
)
10076 struct drm_device
*dev
= crtc
->dev
;
10077 struct intel_encoder
*encoder
;
10078 struct intel_crtc_config
*pipe_config
;
10079 int plane_bpp
, ret
= -EINVAL
;
10082 if (!check_encoder_cloning(to_intel_crtc(crtc
))) {
10083 DRM_DEBUG_KMS("rejecting invalid cloning configuration\n");
10084 return ERR_PTR(-EINVAL
);
10087 pipe_config
= kzalloc(sizeof(*pipe_config
), GFP_KERNEL
);
10089 return ERR_PTR(-ENOMEM
);
10091 drm_mode_copy(&pipe_config
->adjusted_mode
, mode
);
10092 drm_mode_copy(&pipe_config
->requested_mode
, mode
);
10094 pipe_config
->cpu_transcoder
=
10095 (enum transcoder
) to_intel_crtc(crtc
)->pipe
;
10096 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
10099 * Sanitize sync polarity flags based on requested ones. If neither
10100 * positive or negative polarity is requested, treat this as meaning
10101 * negative polarity.
10103 if (!(pipe_config
->adjusted_mode
.flags
&
10104 (DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NHSYNC
)))
10105 pipe_config
->adjusted_mode
.flags
|= DRM_MODE_FLAG_NHSYNC
;
10107 if (!(pipe_config
->adjusted_mode
.flags
&
10108 (DRM_MODE_FLAG_PVSYNC
| DRM_MODE_FLAG_NVSYNC
)))
10109 pipe_config
->adjusted_mode
.flags
|= DRM_MODE_FLAG_NVSYNC
;
10111 /* Compute a starting value for pipe_config->pipe_bpp taking the source
10112 * plane pixel format and any sink constraints into account. Returns the
10113 * source plane bpp so that dithering can be selected on mismatches
10114 * after encoders and crtc also have had their say. */
10115 plane_bpp
= compute_baseline_pipe_bpp(to_intel_crtc(crtc
),
10121 * Determine the real pipe dimensions. Note that stereo modes can
10122 * increase the actual pipe size due to the frame doubling and
10123 * insertion of additional space for blanks between the frame. This
10124 * is stored in the crtc timings. We use the requested mode to do this
10125 * computation to clearly distinguish it from the adjusted mode, which
10126 * can be changed by the connectors in the below retry loop.
10128 drm_mode_set_crtcinfo(&pipe_config
->requested_mode
, CRTC_STEREO_DOUBLE
);
10129 pipe_config
->pipe_src_w
= pipe_config
->requested_mode
.crtc_hdisplay
;
10130 pipe_config
->pipe_src_h
= pipe_config
->requested_mode
.crtc_vdisplay
;
10133 /* Ensure the port clock defaults are reset when retrying. */
10134 pipe_config
->port_clock
= 0;
10135 pipe_config
->pixel_multiplier
= 1;
10137 /* Fill in default crtc timings, allow encoders to overwrite them. */
10138 drm_mode_set_crtcinfo(&pipe_config
->adjusted_mode
, CRTC_STEREO_DOUBLE
);
10140 /* Pass our mode to the connectors and the CRTC to give them a chance to
10141 * adjust it according to limitations or connector properties, and also
10142 * a chance to reject the mode entirely.
10144 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
10147 if (&encoder
->new_crtc
->base
!= crtc
)
10150 if (!(encoder
->compute_config(encoder
, pipe_config
))) {
10151 DRM_DEBUG_KMS("Encoder config failure\n");
10156 /* Set default port clock if not overwritten by the encoder. Needs to be
10157 * done afterwards in case the encoder adjusts the mode. */
10158 if (!pipe_config
->port_clock
)
10159 pipe_config
->port_clock
= pipe_config
->adjusted_mode
.crtc_clock
10160 * pipe_config
->pixel_multiplier
;
10162 ret
= intel_crtc_compute_config(to_intel_crtc(crtc
), pipe_config
);
10164 DRM_DEBUG_KMS("CRTC fixup failed\n");
10168 if (ret
== RETRY
) {
10169 if (WARN(!retry
, "loop in pipe configuration computation\n")) {
10174 DRM_DEBUG_KMS("CRTC bw constrained, retrying\n");
10176 goto encoder_retry
;
10179 pipe_config
->dither
= pipe_config
->pipe_bpp
!= plane_bpp
;
10180 DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n",
10181 plane_bpp
, pipe_config
->pipe_bpp
, pipe_config
->dither
);
10183 return pipe_config
;
10185 kfree(pipe_config
);
10186 return ERR_PTR(ret
);
10189 /* Computes which crtcs are affected and sets the relevant bits in the mask. For
10190 * simplicity we use the crtc's pipe number (because it's easier to obtain). */
10192 intel_modeset_affected_pipes(struct drm_crtc
*crtc
, unsigned *modeset_pipes
,
10193 unsigned *prepare_pipes
, unsigned *disable_pipes
)
10195 struct intel_crtc
*intel_crtc
;
10196 struct drm_device
*dev
= crtc
->dev
;
10197 struct intel_encoder
*encoder
;
10198 struct intel_connector
*connector
;
10199 struct drm_crtc
*tmp_crtc
;
10201 *disable_pipes
= *modeset_pipes
= *prepare_pipes
= 0;
10203 /* Check which crtcs have changed outputs connected to them, these need
10204 * to be part of the prepare_pipes mask. We don't (yet) support global
10205 * modeset across multiple crtcs, so modeset_pipes will only have one
10206 * bit set at most. */
10207 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
10209 if (connector
->base
.encoder
== &connector
->new_encoder
->base
)
10212 if (connector
->base
.encoder
) {
10213 tmp_crtc
= connector
->base
.encoder
->crtc
;
10215 *prepare_pipes
|= 1 << to_intel_crtc(tmp_crtc
)->pipe
;
10218 if (connector
->new_encoder
)
10220 1 << connector
->new_encoder
->new_crtc
->pipe
;
10223 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
10225 if (encoder
->base
.crtc
== &encoder
->new_crtc
->base
)
10228 if (encoder
->base
.crtc
) {
10229 tmp_crtc
= encoder
->base
.crtc
;
10231 *prepare_pipes
|= 1 << to_intel_crtc(tmp_crtc
)->pipe
;
10234 if (encoder
->new_crtc
)
10235 *prepare_pipes
|= 1 << encoder
->new_crtc
->pipe
;
10238 /* Check for pipes that will be enabled/disabled ... */
10239 for_each_intel_crtc(dev
, intel_crtc
) {
10240 if (intel_crtc
->base
.enabled
== intel_crtc
->new_enabled
)
10243 if (!intel_crtc
->new_enabled
)
10244 *disable_pipes
|= 1 << intel_crtc
->pipe
;
10246 *prepare_pipes
|= 1 << intel_crtc
->pipe
;
10250 /* set_mode is also used to update properties on life display pipes. */
10251 intel_crtc
= to_intel_crtc(crtc
);
10252 if (intel_crtc
->new_enabled
)
10253 *prepare_pipes
|= 1 << intel_crtc
->pipe
;
10256 * For simplicity do a full modeset on any pipe where the output routing
10257 * changed. We could be more clever, but that would require us to be
10258 * more careful with calling the relevant encoder->mode_set functions.
10260 if (*prepare_pipes
)
10261 *modeset_pipes
= *prepare_pipes
;
10263 /* ... and mask these out. */
10264 *modeset_pipes
&= ~(*disable_pipes
);
10265 *prepare_pipes
&= ~(*disable_pipes
);
10268 * HACK: We don't (yet) fully support global modesets. intel_set_config
10269 * obies this rule, but the modeset restore mode of
10270 * intel_modeset_setup_hw_state does not.
10272 *modeset_pipes
&= 1 << intel_crtc
->pipe
;
10273 *prepare_pipes
&= 1 << intel_crtc
->pipe
;
10275 DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
10276 *modeset_pipes
, *prepare_pipes
, *disable_pipes
);
10279 static bool intel_crtc_in_use(struct drm_crtc
*crtc
)
10281 struct drm_encoder
*encoder
;
10282 struct drm_device
*dev
= crtc
->dev
;
10284 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
)
10285 if (encoder
->crtc
== crtc
)
10292 intel_modeset_update_state(struct drm_device
*dev
, unsigned prepare_pipes
)
10294 struct intel_encoder
*intel_encoder
;
10295 struct intel_crtc
*intel_crtc
;
10296 struct drm_connector
*connector
;
10298 list_for_each_entry(intel_encoder
, &dev
->mode_config
.encoder_list
,
10300 if (!intel_encoder
->base
.crtc
)
10303 intel_crtc
= to_intel_crtc(intel_encoder
->base
.crtc
);
10305 if (prepare_pipes
& (1 << intel_crtc
->pipe
))
10306 intel_encoder
->connectors_active
= false;
10309 intel_modeset_commit_output_state(dev
);
10311 /* Double check state. */
10312 for_each_intel_crtc(dev
, intel_crtc
) {
10313 WARN_ON(intel_crtc
->base
.enabled
!= intel_crtc_in_use(&intel_crtc
->base
));
10314 WARN_ON(intel_crtc
->new_config
&&
10315 intel_crtc
->new_config
!= &intel_crtc
->config
);
10316 WARN_ON(intel_crtc
->base
.enabled
!= !!intel_crtc
->new_config
);
10319 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
10320 if (!connector
->encoder
|| !connector
->encoder
->crtc
)
10323 intel_crtc
= to_intel_crtc(connector
->encoder
->crtc
);
10325 if (prepare_pipes
& (1 << intel_crtc
->pipe
)) {
10326 struct drm_property
*dpms_property
=
10327 dev
->mode_config
.dpms_property
;
10329 connector
->dpms
= DRM_MODE_DPMS_ON
;
10330 drm_object_property_set_value(&connector
->base
,
10334 intel_encoder
= to_intel_encoder(connector
->encoder
);
10335 intel_encoder
->connectors_active
= true;
10341 static bool intel_fuzzy_clock_check(int clock1
, int clock2
)
10345 if (clock1
== clock2
)
10348 if (!clock1
|| !clock2
)
10351 diff
= abs(clock1
- clock2
);
10353 if (((((diff
+ clock1
+ clock2
) * 100)) / (clock1
+ clock2
)) < 105)
10359 #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
10360 list_for_each_entry((intel_crtc), \
10361 &(dev)->mode_config.crtc_list, \
10363 if (mask & (1 <<(intel_crtc)->pipe))
10366 intel_pipe_config_compare(struct drm_device
*dev
,
10367 struct intel_crtc_config
*current_config
,
10368 struct intel_crtc_config
*pipe_config
)
10370 #define PIPE_CONF_CHECK_X(name) \
10371 if (current_config->name != pipe_config->name) { \
10372 DRM_ERROR("mismatch in " #name " " \
10373 "(expected 0x%08x, found 0x%08x)\n", \
10374 current_config->name, \
10375 pipe_config->name); \
10379 #define PIPE_CONF_CHECK_I(name) \
10380 if (current_config->name != pipe_config->name) { \
10381 DRM_ERROR("mismatch in " #name " " \
10382 "(expected %i, found %i)\n", \
10383 current_config->name, \
10384 pipe_config->name); \
10388 #define PIPE_CONF_CHECK_FLAGS(name, mask) \
10389 if ((current_config->name ^ pipe_config->name) & (mask)) { \
10390 DRM_ERROR("mismatch in " #name "(" #mask ") " \
10391 "(expected %i, found %i)\n", \
10392 current_config->name & (mask), \
10393 pipe_config->name & (mask)); \
10397 #define PIPE_CONF_CHECK_CLOCK_FUZZY(name) \
10398 if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \
10399 DRM_ERROR("mismatch in " #name " " \
10400 "(expected %i, found %i)\n", \
10401 current_config->name, \
10402 pipe_config->name); \
10406 #define PIPE_CONF_QUIRK(quirk) \
10407 ((current_config->quirks | pipe_config->quirks) & (quirk))
10409 PIPE_CONF_CHECK_I(cpu_transcoder
);
10411 PIPE_CONF_CHECK_I(has_pch_encoder
);
10412 PIPE_CONF_CHECK_I(fdi_lanes
);
10413 PIPE_CONF_CHECK_I(fdi_m_n
.gmch_m
);
10414 PIPE_CONF_CHECK_I(fdi_m_n
.gmch_n
);
10415 PIPE_CONF_CHECK_I(fdi_m_n
.link_m
);
10416 PIPE_CONF_CHECK_I(fdi_m_n
.link_n
);
10417 PIPE_CONF_CHECK_I(fdi_m_n
.tu
);
10419 PIPE_CONF_CHECK_I(has_dp_encoder
);
10420 PIPE_CONF_CHECK_I(dp_m_n
.gmch_m
);
10421 PIPE_CONF_CHECK_I(dp_m_n
.gmch_n
);
10422 PIPE_CONF_CHECK_I(dp_m_n
.link_m
);
10423 PIPE_CONF_CHECK_I(dp_m_n
.link_n
);
10424 PIPE_CONF_CHECK_I(dp_m_n
.tu
);
10426 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_hdisplay
);
10427 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_htotal
);
10428 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_hblank_start
);
10429 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_hblank_end
);
10430 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_hsync_start
);
10431 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_hsync_end
);
10433 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vdisplay
);
10434 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vtotal
);
10435 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vblank_start
);
10436 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vblank_end
);
10437 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vsync_start
);
10438 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vsync_end
);
10440 PIPE_CONF_CHECK_I(pixel_multiplier
);
10441 PIPE_CONF_CHECK_I(has_hdmi_sink
);
10442 if ((INTEL_INFO(dev
)->gen
< 8 && !IS_HASWELL(dev
)) ||
10443 IS_VALLEYVIEW(dev
))
10444 PIPE_CONF_CHECK_I(limited_color_range
);
10446 PIPE_CONF_CHECK_I(has_audio
);
10448 PIPE_CONF_CHECK_FLAGS(adjusted_mode
.flags
,
10449 DRM_MODE_FLAG_INTERLACE
);
10451 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS
)) {
10452 PIPE_CONF_CHECK_FLAGS(adjusted_mode
.flags
,
10453 DRM_MODE_FLAG_PHSYNC
);
10454 PIPE_CONF_CHECK_FLAGS(adjusted_mode
.flags
,
10455 DRM_MODE_FLAG_NHSYNC
);
10456 PIPE_CONF_CHECK_FLAGS(adjusted_mode
.flags
,
10457 DRM_MODE_FLAG_PVSYNC
);
10458 PIPE_CONF_CHECK_FLAGS(adjusted_mode
.flags
,
10459 DRM_MODE_FLAG_NVSYNC
);
10462 PIPE_CONF_CHECK_I(pipe_src_w
);
10463 PIPE_CONF_CHECK_I(pipe_src_h
);
10466 * FIXME: BIOS likes to set up a cloned config with lvds+external
10467 * screen. Since we don't yet re-compute the pipe config when moving
10468 * just the lvds port away to another pipe the sw tracking won't match.
10470 * Proper atomic modesets with recomputed global state will fix this.
10471 * Until then just don't check gmch state for inherited modes.
10473 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_INHERITED_MODE
)) {
10474 PIPE_CONF_CHECK_I(gmch_pfit
.control
);
10475 /* pfit ratios are autocomputed by the hw on gen4+ */
10476 if (INTEL_INFO(dev
)->gen
< 4)
10477 PIPE_CONF_CHECK_I(gmch_pfit
.pgm_ratios
);
10478 PIPE_CONF_CHECK_I(gmch_pfit
.lvds_border_bits
);
10481 PIPE_CONF_CHECK_I(pch_pfit
.enabled
);
10482 if (current_config
->pch_pfit
.enabled
) {
10483 PIPE_CONF_CHECK_I(pch_pfit
.pos
);
10484 PIPE_CONF_CHECK_I(pch_pfit
.size
);
10487 /* BDW+ don't expose a synchronous way to read the state */
10488 if (IS_HASWELL(dev
))
10489 PIPE_CONF_CHECK_I(ips_enabled
);
10491 PIPE_CONF_CHECK_I(double_wide
);
10493 PIPE_CONF_CHECK_X(ddi_pll_sel
);
10495 PIPE_CONF_CHECK_I(shared_dpll
);
10496 PIPE_CONF_CHECK_X(dpll_hw_state
.dpll
);
10497 PIPE_CONF_CHECK_X(dpll_hw_state
.dpll_md
);
10498 PIPE_CONF_CHECK_X(dpll_hw_state
.fp0
);
10499 PIPE_CONF_CHECK_X(dpll_hw_state
.fp1
);
10500 PIPE_CONF_CHECK_X(dpll_hw_state
.wrpll
);
10502 if (IS_G4X(dev
) || INTEL_INFO(dev
)->gen
>= 5)
10503 PIPE_CONF_CHECK_I(pipe_bpp
);
10505 PIPE_CONF_CHECK_CLOCK_FUZZY(adjusted_mode
.crtc_clock
);
10506 PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock
);
10508 #undef PIPE_CONF_CHECK_X
10509 #undef PIPE_CONF_CHECK_I
10510 #undef PIPE_CONF_CHECK_FLAGS
10511 #undef PIPE_CONF_CHECK_CLOCK_FUZZY
10512 #undef PIPE_CONF_QUIRK
10518 check_connector_state(struct drm_device
*dev
)
10520 struct intel_connector
*connector
;
10522 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
10524 /* This also checks the encoder/connector hw state with the
10525 * ->get_hw_state callbacks. */
10526 intel_connector_check_state(connector
);
10528 WARN(&connector
->new_encoder
->base
!= connector
->base
.encoder
,
10529 "connector's staged encoder doesn't match current encoder\n");
10534 check_encoder_state(struct drm_device
*dev
)
10536 struct intel_encoder
*encoder
;
10537 struct intel_connector
*connector
;
10539 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
10541 bool enabled
= false;
10542 bool active
= false;
10543 enum pipe pipe
, tracked_pipe
;
10545 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
10546 encoder
->base
.base
.id
,
10547 encoder
->base
.name
);
10549 WARN(&encoder
->new_crtc
->base
!= encoder
->base
.crtc
,
10550 "encoder's stage crtc doesn't match current crtc\n");
10551 WARN(encoder
->connectors_active
&& !encoder
->base
.crtc
,
10552 "encoder's active_connectors set, but no crtc\n");
10554 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
10556 if (connector
->base
.encoder
!= &encoder
->base
)
10559 if (connector
->base
.dpms
!= DRM_MODE_DPMS_OFF
)
10563 * for MST connectors if we unplug the connector is gone
10564 * away but the encoder is still connected to a crtc
10565 * until a modeset happens in response to the hotplug.
10567 if (!enabled
&& encoder
->base
.encoder_type
== DRM_MODE_ENCODER_DPMST
)
10570 WARN(!!encoder
->base
.crtc
!= enabled
,
10571 "encoder's enabled state mismatch "
10572 "(expected %i, found %i)\n",
10573 !!encoder
->base
.crtc
, enabled
);
10574 WARN(active
&& !encoder
->base
.crtc
,
10575 "active encoder with no crtc\n");
10577 WARN(encoder
->connectors_active
!= active
,
10578 "encoder's computed active state doesn't match tracked active state "
10579 "(expected %i, found %i)\n", active
, encoder
->connectors_active
);
10581 active
= encoder
->get_hw_state(encoder
, &pipe
);
10582 WARN(active
!= encoder
->connectors_active
,
10583 "encoder's hw state doesn't match sw tracking "
10584 "(expected %i, found %i)\n",
10585 encoder
->connectors_active
, active
);
10587 if (!encoder
->base
.crtc
)
10590 tracked_pipe
= to_intel_crtc(encoder
->base
.crtc
)->pipe
;
10591 WARN(active
&& pipe
!= tracked_pipe
,
10592 "active encoder's pipe doesn't match"
10593 "(expected %i, found %i)\n",
10594 tracked_pipe
, pipe
);
10600 check_crtc_state(struct drm_device
*dev
)
10602 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10603 struct intel_crtc
*crtc
;
10604 struct intel_encoder
*encoder
;
10605 struct intel_crtc_config pipe_config
;
10607 for_each_intel_crtc(dev
, crtc
) {
10608 bool enabled
= false;
10609 bool active
= false;
10611 memset(&pipe_config
, 0, sizeof(pipe_config
));
10613 DRM_DEBUG_KMS("[CRTC:%d]\n",
10614 crtc
->base
.base
.id
);
10616 WARN(crtc
->active
&& !crtc
->base
.enabled
,
10617 "active crtc, but not enabled in sw tracking\n");
10619 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
10621 if (encoder
->base
.crtc
!= &crtc
->base
)
10624 if (encoder
->connectors_active
)
10628 WARN(active
!= crtc
->active
,
10629 "crtc's computed active state doesn't match tracked active state "
10630 "(expected %i, found %i)\n", active
, crtc
->active
);
10631 WARN(enabled
!= crtc
->base
.enabled
,
10632 "crtc's computed enabled state doesn't match tracked enabled state "
10633 "(expected %i, found %i)\n", enabled
, crtc
->base
.enabled
);
10635 active
= dev_priv
->display
.get_pipe_config(crtc
,
10638 /* hw state is inconsistent with the pipe A quirk */
10639 if (crtc
->pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
)
10640 active
= crtc
->active
;
10642 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
10645 if (encoder
->base
.crtc
!= &crtc
->base
)
10647 if (encoder
->get_hw_state(encoder
, &pipe
))
10648 encoder
->get_config(encoder
, &pipe_config
);
10651 WARN(crtc
->active
!= active
,
10652 "crtc active state doesn't match with hw state "
10653 "(expected %i, found %i)\n", crtc
->active
, active
);
10656 !intel_pipe_config_compare(dev
, &crtc
->config
, &pipe_config
)) {
10657 WARN(1, "pipe state doesn't match!\n");
10658 intel_dump_pipe_config(crtc
, &pipe_config
,
10660 intel_dump_pipe_config(crtc
, &crtc
->config
,
10667 check_shared_dpll_state(struct drm_device
*dev
)
10669 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10670 struct intel_crtc
*crtc
;
10671 struct intel_dpll_hw_state dpll_hw_state
;
10674 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
10675 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
10676 int enabled_crtcs
= 0, active_crtcs
= 0;
10679 memset(&dpll_hw_state
, 0, sizeof(dpll_hw_state
));
10681 DRM_DEBUG_KMS("%s\n", pll
->name
);
10683 active
= pll
->get_hw_state(dev_priv
, pll
, &dpll_hw_state
);
10685 WARN(pll
->active
> pll
->refcount
,
10686 "more active pll users than references: %i vs %i\n",
10687 pll
->active
, pll
->refcount
);
10688 WARN(pll
->active
&& !pll
->on
,
10689 "pll in active use but not on in sw tracking\n");
10690 WARN(pll
->on
&& !pll
->active
,
10691 "pll in on but not on in use in sw tracking\n");
10692 WARN(pll
->on
!= active
,
10693 "pll on state mismatch (expected %i, found %i)\n",
10696 for_each_intel_crtc(dev
, crtc
) {
10697 if (crtc
->base
.enabled
&& intel_crtc_to_shared_dpll(crtc
) == pll
)
10699 if (crtc
->active
&& intel_crtc_to_shared_dpll(crtc
) == pll
)
10702 WARN(pll
->active
!= active_crtcs
,
10703 "pll active crtcs mismatch (expected %i, found %i)\n",
10704 pll
->active
, active_crtcs
);
10705 WARN(pll
->refcount
!= enabled_crtcs
,
10706 "pll enabled crtcs mismatch (expected %i, found %i)\n",
10707 pll
->refcount
, enabled_crtcs
);
10709 WARN(pll
->on
&& memcmp(&pll
->hw_state
, &dpll_hw_state
,
10710 sizeof(dpll_hw_state
)),
10711 "pll hw state mismatch\n");
10716 intel_modeset_check_state(struct drm_device
*dev
)
10718 check_connector_state(dev
);
10719 check_encoder_state(dev
);
10720 check_crtc_state(dev
);
10721 check_shared_dpll_state(dev
);
10724 void ironlake_check_encoder_dotclock(const struct intel_crtc_config
*pipe_config
,
10728 * FDI already provided one idea for the dotclock.
10729 * Yell if the encoder disagrees.
10731 WARN(!intel_fuzzy_clock_check(pipe_config
->adjusted_mode
.crtc_clock
, dotclock
),
10732 "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n",
10733 pipe_config
->adjusted_mode
.crtc_clock
, dotclock
);
10736 static void update_scanline_offset(struct intel_crtc
*crtc
)
10738 struct drm_device
*dev
= crtc
->base
.dev
;
10741 * The scanline counter increments at the leading edge of hsync.
10743 * On most platforms it starts counting from vtotal-1 on the
10744 * first active line. That means the scanline counter value is
10745 * always one less than what we would expect. Ie. just after
10746 * start of vblank, which also occurs at start of hsync (on the
10747 * last active line), the scanline counter will read vblank_start-1.
10749 * On gen2 the scanline counter starts counting from 1 instead
10750 * of vtotal-1, so we have to subtract one (or rather add vtotal-1
10751 * to keep the value positive), instead of adding one.
10753 * On HSW+ the behaviour of the scanline counter depends on the output
10754 * type. For DP ports it behaves like most other platforms, but on HDMI
10755 * there's an extra 1 line difference. So we need to add two instead of
10756 * one to the value.
10758 if (IS_GEN2(dev
)) {
10759 const struct drm_display_mode
*mode
= &crtc
->config
.adjusted_mode
;
10762 vtotal
= mode
->crtc_vtotal
;
10763 if (mode
->flags
& DRM_MODE_FLAG_INTERLACE
)
10766 crtc
->scanline_offset
= vtotal
- 1;
10767 } else if (HAS_DDI(dev
) &&
10768 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_HDMI
)) {
10769 crtc
->scanline_offset
= 2;
10771 crtc
->scanline_offset
= 1;
10774 static int __intel_set_mode(struct drm_crtc
*crtc
,
10775 struct drm_display_mode
*mode
,
10776 int x
, int y
, struct drm_framebuffer
*fb
)
10778 struct drm_device
*dev
= crtc
->dev
;
10779 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10780 struct drm_display_mode
*saved_mode
;
10781 struct intel_crtc_config
*pipe_config
= NULL
;
10782 struct intel_crtc
*intel_crtc
;
10783 unsigned disable_pipes
, prepare_pipes
, modeset_pipes
;
10786 saved_mode
= kmalloc(sizeof(*saved_mode
), GFP_KERNEL
);
10790 intel_modeset_affected_pipes(crtc
, &modeset_pipes
,
10791 &prepare_pipes
, &disable_pipes
);
10793 *saved_mode
= crtc
->mode
;
10795 /* Hack: Because we don't (yet) support global modeset on multiple
10796 * crtcs, we don't keep track of the new mode for more than one crtc.
10797 * Hence simply check whether any bit is set in modeset_pipes in all the
10798 * pieces of code that are not yet converted to deal with mutliple crtcs
10799 * changing their mode at the same time. */
10800 if (modeset_pipes
) {
10801 pipe_config
= intel_modeset_pipe_config(crtc
, fb
, mode
);
10802 if (IS_ERR(pipe_config
)) {
10803 ret
= PTR_ERR(pipe_config
);
10804 pipe_config
= NULL
;
10808 intel_dump_pipe_config(to_intel_crtc(crtc
), pipe_config
,
10810 to_intel_crtc(crtc
)->new_config
= pipe_config
;
10814 * See if the config requires any additional preparation, e.g.
10815 * to adjust global state with pipes off. We need to do this
10816 * here so we can get the modeset_pipe updated config for the new
10817 * mode set on this crtc. For other crtcs we need to use the
10818 * adjusted_mode bits in the crtc directly.
10820 if (IS_VALLEYVIEW(dev
)) {
10821 valleyview_modeset_global_pipes(dev
, &prepare_pipes
);
10823 /* may have added more to prepare_pipes than we should */
10824 prepare_pipes
&= ~disable_pipes
;
10827 for_each_intel_crtc_masked(dev
, disable_pipes
, intel_crtc
)
10828 intel_crtc_disable(&intel_crtc
->base
);
10830 for_each_intel_crtc_masked(dev
, prepare_pipes
, intel_crtc
) {
10831 if (intel_crtc
->base
.enabled
)
10832 dev_priv
->display
.crtc_disable(&intel_crtc
->base
);
10835 /* crtc->mode is already used by the ->mode_set callbacks, hence we need
10836 * to set it here already despite that we pass it down the callchain.
10838 if (modeset_pipes
) {
10839 crtc
->mode
= *mode
;
10840 /* mode_set/enable/disable functions rely on a correct pipe
10842 to_intel_crtc(crtc
)->config
= *pipe_config
;
10843 to_intel_crtc(crtc
)->new_config
= &to_intel_crtc(crtc
)->config
;
10846 * Calculate and store various constants which
10847 * are later needed by vblank and swap-completion
10848 * timestamping. They are derived from true hwmode.
10850 drm_calc_timestamping_constants(crtc
,
10851 &pipe_config
->adjusted_mode
);
10854 /* Only after disabling all output pipelines that will be changed can we
10855 * update the the output configuration. */
10856 intel_modeset_update_state(dev
, prepare_pipes
);
10858 if (dev_priv
->display
.modeset_global_resources
)
10859 dev_priv
->display
.modeset_global_resources(dev
);
10861 /* Set up the DPLL and any encoders state that needs to adjust or depend
10864 for_each_intel_crtc_masked(dev
, modeset_pipes
, intel_crtc
) {
10865 struct drm_framebuffer
*old_fb
= crtc
->primary
->fb
;
10866 struct drm_i915_gem_object
*old_obj
= intel_fb_obj(old_fb
);
10867 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
10869 mutex_lock(&dev
->struct_mutex
);
10870 ret
= intel_pin_and_fence_fb_obj(dev
,
10874 DRM_ERROR("pin & fence failed\n");
10875 mutex_unlock(&dev
->struct_mutex
);
10879 intel_unpin_fb_obj(old_obj
);
10880 i915_gem_track_fb(old_obj
, obj
,
10881 INTEL_FRONTBUFFER_PRIMARY(intel_crtc
->pipe
));
10882 mutex_unlock(&dev
->struct_mutex
);
10884 crtc
->primary
->fb
= fb
;
10888 ret
= dev_priv
->display
.crtc_mode_set(&intel_crtc
->base
,
10894 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
10895 for_each_intel_crtc_masked(dev
, prepare_pipes
, intel_crtc
) {
10896 update_scanline_offset(intel_crtc
);
10898 dev_priv
->display
.crtc_enable(&intel_crtc
->base
);
10901 /* FIXME: add subpixel order */
10903 if (ret
&& crtc
->enabled
)
10904 crtc
->mode
= *saved_mode
;
10907 kfree(pipe_config
);
10912 static int intel_set_mode(struct drm_crtc
*crtc
,
10913 struct drm_display_mode
*mode
,
10914 int x
, int y
, struct drm_framebuffer
*fb
)
10918 ret
= __intel_set_mode(crtc
, mode
, x
, y
, fb
);
10921 intel_modeset_check_state(crtc
->dev
);
10926 void intel_crtc_restore_mode(struct drm_crtc
*crtc
)
10928 intel_set_mode(crtc
, &crtc
->mode
, crtc
->x
, crtc
->y
, crtc
->primary
->fb
);
10931 #undef for_each_intel_crtc_masked
10933 static void intel_set_config_free(struct intel_set_config
*config
)
10938 kfree(config
->save_connector_encoders
);
10939 kfree(config
->save_encoder_crtcs
);
10940 kfree(config
->save_crtc_enabled
);
10944 static int intel_set_config_save_state(struct drm_device
*dev
,
10945 struct intel_set_config
*config
)
10947 struct drm_crtc
*crtc
;
10948 struct drm_encoder
*encoder
;
10949 struct drm_connector
*connector
;
10952 config
->save_crtc_enabled
=
10953 kcalloc(dev
->mode_config
.num_crtc
,
10954 sizeof(bool), GFP_KERNEL
);
10955 if (!config
->save_crtc_enabled
)
10958 config
->save_encoder_crtcs
=
10959 kcalloc(dev
->mode_config
.num_encoder
,
10960 sizeof(struct drm_crtc
*), GFP_KERNEL
);
10961 if (!config
->save_encoder_crtcs
)
10964 config
->save_connector_encoders
=
10965 kcalloc(dev
->mode_config
.num_connector
,
10966 sizeof(struct drm_encoder
*), GFP_KERNEL
);
10967 if (!config
->save_connector_encoders
)
10970 /* Copy data. Note that driver private data is not affected.
10971 * Should anything bad happen only the expected state is
10972 * restored, not the drivers personal bookkeeping.
10975 for_each_crtc(dev
, crtc
) {
10976 config
->save_crtc_enabled
[count
++] = crtc
->enabled
;
10980 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
) {
10981 config
->save_encoder_crtcs
[count
++] = encoder
->crtc
;
10985 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
10986 config
->save_connector_encoders
[count
++] = connector
->encoder
;
10992 static void intel_set_config_restore_state(struct drm_device
*dev
,
10993 struct intel_set_config
*config
)
10995 struct intel_crtc
*crtc
;
10996 struct intel_encoder
*encoder
;
10997 struct intel_connector
*connector
;
11001 for_each_intel_crtc(dev
, crtc
) {
11002 crtc
->new_enabled
= config
->save_crtc_enabled
[count
++];
11004 if (crtc
->new_enabled
)
11005 crtc
->new_config
= &crtc
->config
;
11007 crtc
->new_config
= NULL
;
11011 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, base
.head
) {
11012 encoder
->new_crtc
=
11013 to_intel_crtc(config
->save_encoder_crtcs
[count
++]);
11017 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, base
.head
) {
11018 connector
->new_encoder
=
11019 to_intel_encoder(config
->save_connector_encoders
[count
++]);
11024 is_crtc_connector_off(struct drm_mode_set
*set
)
11028 if (set
->num_connectors
== 0)
11031 if (WARN_ON(set
->connectors
== NULL
))
11034 for (i
= 0; i
< set
->num_connectors
; i
++)
11035 if (set
->connectors
[i
]->encoder
&&
11036 set
->connectors
[i
]->encoder
->crtc
== set
->crtc
&&
11037 set
->connectors
[i
]->dpms
!= DRM_MODE_DPMS_ON
)
11044 intel_set_config_compute_mode_changes(struct drm_mode_set
*set
,
11045 struct intel_set_config
*config
)
11048 /* We should be able to check here if the fb has the same properties
11049 * and then just flip_or_move it */
11050 if (is_crtc_connector_off(set
)) {
11051 config
->mode_changed
= true;
11052 } else if (set
->crtc
->primary
->fb
!= set
->fb
) {
11054 * If we have no fb, we can only flip as long as the crtc is
11055 * active, otherwise we need a full mode set. The crtc may
11056 * be active if we've only disabled the primary plane, or
11057 * in fastboot situations.
11059 if (set
->crtc
->primary
->fb
== NULL
) {
11060 struct intel_crtc
*intel_crtc
=
11061 to_intel_crtc(set
->crtc
);
11063 if (intel_crtc
->active
) {
11064 DRM_DEBUG_KMS("crtc has no fb, will flip\n");
11065 config
->fb_changed
= true;
11067 DRM_DEBUG_KMS("inactive crtc, full mode set\n");
11068 config
->mode_changed
= true;
11070 } else if (set
->fb
== NULL
) {
11071 config
->mode_changed
= true;
11072 } else if (set
->fb
->pixel_format
!=
11073 set
->crtc
->primary
->fb
->pixel_format
) {
11074 config
->mode_changed
= true;
11076 config
->fb_changed
= true;
11080 if (set
->fb
&& (set
->x
!= set
->crtc
->x
|| set
->y
!= set
->crtc
->y
))
11081 config
->fb_changed
= true;
11083 if (set
->mode
&& !drm_mode_equal(set
->mode
, &set
->crtc
->mode
)) {
11084 DRM_DEBUG_KMS("modes are different, full mode set\n");
11085 drm_mode_debug_printmodeline(&set
->crtc
->mode
);
11086 drm_mode_debug_printmodeline(set
->mode
);
11087 config
->mode_changed
= true;
11090 DRM_DEBUG_KMS("computed changes for [CRTC:%d], mode_changed=%d, fb_changed=%d\n",
11091 set
->crtc
->base
.id
, config
->mode_changed
, config
->fb_changed
);
11095 intel_modeset_stage_output_state(struct drm_device
*dev
,
11096 struct drm_mode_set
*set
,
11097 struct intel_set_config
*config
)
11099 struct intel_connector
*connector
;
11100 struct intel_encoder
*encoder
;
11101 struct intel_crtc
*crtc
;
11104 /* The upper layers ensure that we either disable a crtc or have a list
11105 * of connectors. For paranoia, double-check this. */
11106 WARN_ON(!set
->fb
&& (set
->num_connectors
!= 0));
11107 WARN_ON(set
->fb
&& (set
->num_connectors
== 0));
11109 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
11111 /* Otherwise traverse passed in connector list and get encoders
11113 for (ro
= 0; ro
< set
->num_connectors
; ro
++) {
11114 if (set
->connectors
[ro
] == &connector
->base
) {
11115 connector
->new_encoder
= intel_find_encoder(connector
, to_intel_crtc(set
->crtc
)->pipe
);
11120 /* If we disable the crtc, disable all its connectors. Also, if
11121 * the connector is on the changing crtc but not on the new
11122 * connector list, disable it. */
11123 if ((!set
->fb
|| ro
== set
->num_connectors
) &&
11124 connector
->base
.encoder
&&
11125 connector
->base
.encoder
->crtc
== set
->crtc
) {
11126 connector
->new_encoder
= NULL
;
11128 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
11129 connector
->base
.base
.id
,
11130 connector
->base
.name
);
11134 if (&connector
->new_encoder
->base
!= connector
->base
.encoder
) {
11135 DRM_DEBUG_KMS("encoder changed, full mode switch\n");
11136 config
->mode_changed
= true;
11139 /* connector->new_encoder is now updated for all connectors. */
11141 /* Update crtc of enabled connectors. */
11142 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
11144 struct drm_crtc
*new_crtc
;
11146 if (!connector
->new_encoder
)
11149 new_crtc
= connector
->new_encoder
->base
.crtc
;
11151 for (ro
= 0; ro
< set
->num_connectors
; ro
++) {
11152 if (set
->connectors
[ro
] == &connector
->base
)
11153 new_crtc
= set
->crtc
;
11156 /* Make sure the new CRTC will work with the encoder */
11157 if (!drm_encoder_crtc_ok(&connector
->new_encoder
->base
,
11161 connector
->new_encoder
->new_crtc
= to_intel_crtc(new_crtc
);
11163 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
11164 connector
->base
.base
.id
,
11165 connector
->base
.name
,
11166 new_crtc
->base
.id
);
11169 /* Check for any encoders that needs to be disabled. */
11170 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
11172 int num_connectors
= 0;
11173 list_for_each_entry(connector
,
11174 &dev
->mode_config
.connector_list
,
11176 if (connector
->new_encoder
== encoder
) {
11177 WARN_ON(!connector
->new_encoder
->new_crtc
);
11182 if (num_connectors
== 0)
11183 encoder
->new_crtc
= NULL
;
11184 else if (num_connectors
> 1)
11187 /* Only now check for crtc changes so we don't miss encoders
11188 * that will be disabled. */
11189 if (&encoder
->new_crtc
->base
!= encoder
->base
.crtc
) {
11190 DRM_DEBUG_KMS("crtc changed, full mode switch\n");
11191 config
->mode_changed
= true;
11194 /* Now we've also updated encoder->new_crtc for all encoders. */
11195 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
11197 if (connector
->new_encoder
)
11198 if (connector
->new_encoder
!= connector
->encoder
)
11199 connector
->encoder
= connector
->new_encoder
;
11201 for_each_intel_crtc(dev
, crtc
) {
11202 crtc
->new_enabled
= false;
11204 list_for_each_entry(encoder
,
11205 &dev
->mode_config
.encoder_list
,
11207 if (encoder
->new_crtc
== crtc
) {
11208 crtc
->new_enabled
= true;
11213 if (crtc
->new_enabled
!= crtc
->base
.enabled
) {
11214 DRM_DEBUG_KMS("crtc %sabled, full mode switch\n",
11215 crtc
->new_enabled
? "en" : "dis");
11216 config
->mode_changed
= true;
11219 if (crtc
->new_enabled
)
11220 crtc
->new_config
= &crtc
->config
;
11222 crtc
->new_config
= NULL
;
11228 static void disable_crtc_nofb(struct intel_crtc
*crtc
)
11230 struct drm_device
*dev
= crtc
->base
.dev
;
11231 struct intel_encoder
*encoder
;
11232 struct intel_connector
*connector
;
11234 DRM_DEBUG_KMS("Trying to restore without FB -> disabling pipe %c\n",
11235 pipe_name(crtc
->pipe
));
11237 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, base
.head
) {
11238 if (connector
->new_encoder
&&
11239 connector
->new_encoder
->new_crtc
== crtc
)
11240 connector
->new_encoder
= NULL
;
11243 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, base
.head
) {
11244 if (encoder
->new_crtc
== crtc
)
11245 encoder
->new_crtc
= NULL
;
11248 crtc
->new_enabled
= false;
11249 crtc
->new_config
= NULL
;
11252 static int intel_crtc_set_config(struct drm_mode_set
*set
)
11254 struct drm_device
*dev
;
11255 struct drm_mode_set save_set
;
11256 struct intel_set_config
*config
;
11260 BUG_ON(!set
->crtc
);
11261 BUG_ON(!set
->crtc
->helper_private
);
11263 /* Enforce sane interface api - has been abused by the fb helper. */
11264 BUG_ON(!set
->mode
&& set
->fb
);
11265 BUG_ON(set
->fb
&& set
->num_connectors
== 0);
11268 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
11269 set
->crtc
->base
.id
, set
->fb
->base
.id
,
11270 (int)set
->num_connectors
, set
->x
, set
->y
);
11272 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set
->crtc
->base
.id
);
11275 dev
= set
->crtc
->dev
;
11278 config
= kzalloc(sizeof(*config
), GFP_KERNEL
);
11282 ret
= intel_set_config_save_state(dev
, config
);
11286 save_set
.crtc
= set
->crtc
;
11287 save_set
.mode
= &set
->crtc
->mode
;
11288 save_set
.x
= set
->crtc
->x
;
11289 save_set
.y
= set
->crtc
->y
;
11290 save_set
.fb
= set
->crtc
->primary
->fb
;
11292 /* Compute whether we need a full modeset, only an fb base update or no
11293 * change at all. In the future we might also check whether only the
11294 * mode changed, e.g. for LVDS where we only change the panel fitter in
11296 intel_set_config_compute_mode_changes(set
, config
);
11298 ret
= intel_modeset_stage_output_state(dev
, set
, config
);
11302 if (config
->mode_changed
) {
11303 ret
= intel_set_mode(set
->crtc
, set
->mode
,
11304 set
->x
, set
->y
, set
->fb
);
11305 } else if (config
->fb_changed
) {
11306 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11307 struct intel_crtc
*intel_crtc
= to_intel_crtc(set
->crtc
);
11309 intel_crtc_wait_for_pending_flips(set
->crtc
);
11311 ret
= intel_pipe_set_base(set
->crtc
,
11312 set
->x
, set
->y
, set
->fb
);
11315 * We need to make sure the primary plane is re-enabled if it
11316 * has previously been turned off.
11318 if (!intel_crtc
->primary_enabled
&& ret
== 0) {
11319 WARN_ON(!intel_crtc
->active
);
11320 intel_enable_primary_hw_plane(dev_priv
, intel_crtc
->plane
,
11325 * In the fastboot case this may be our only check of the
11326 * state after boot. It would be better to only do it on
11327 * the first update, but we don't have a nice way of doing that
11328 * (and really, set_config isn't used much for high freq page
11329 * flipping, so increasing its cost here shouldn't be a big
11332 if (i915
.fastboot
&& ret
== 0)
11333 intel_modeset_check_state(set
->crtc
->dev
);
11337 DRM_DEBUG_KMS("failed to set mode on [CRTC:%d], err = %d\n",
11338 set
->crtc
->base
.id
, ret
);
11340 intel_set_config_restore_state(dev
, config
);
11343 * HACK: if the pipe was on, but we didn't have a framebuffer,
11344 * force the pipe off to avoid oopsing in the modeset code
11345 * due to fb==NULL. This should only happen during boot since
11346 * we don't yet reconstruct the FB from the hardware state.
11348 if (to_intel_crtc(save_set
.crtc
)->new_enabled
&& !save_set
.fb
)
11349 disable_crtc_nofb(to_intel_crtc(save_set
.crtc
));
11351 /* Try to restore the config */
11352 if (config
->mode_changed
&&
11353 intel_set_mode(save_set
.crtc
, save_set
.mode
,
11354 save_set
.x
, save_set
.y
, save_set
.fb
))
11355 DRM_ERROR("failed to restore config after modeset failure\n");
11359 intel_set_config_free(config
);
11363 static const struct drm_crtc_funcs intel_crtc_funcs
= {
11364 .gamma_set
= intel_crtc_gamma_set
,
11365 .set_config
= intel_crtc_set_config
,
11366 .destroy
= intel_crtc_destroy
,
11367 .page_flip
= intel_crtc_page_flip
,
11370 static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private
*dev_priv
,
11371 struct intel_shared_dpll
*pll
,
11372 struct intel_dpll_hw_state
*hw_state
)
11376 if (!intel_display_power_enabled(dev_priv
, POWER_DOMAIN_PLLS
))
11379 val
= I915_READ(PCH_DPLL(pll
->id
));
11380 hw_state
->dpll
= val
;
11381 hw_state
->fp0
= I915_READ(PCH_FP0(pll
->id
));
11382 hw_state
->fp1
= I915_READ(PCH_FP1(pll
->id
));
11384 return val
& DPLL_VCO_ENABLE
;
11387 static void ibx_pch_dpll_mode_set(struct drm_i915_private
*dev_priv
,
11388 struct intel_shared_dpll
*pll
)
11390 I915_WRITE(PCH_FP0(pll
->id
), pll
->hw_state
.fp0
);
11391 I915_WRITE(PCH_FP1(pll
->id
), pll
->hw_state
.fp1
);
11394 static void ibx_pch_dpll_enable(struct drm_i915_private
*dev_priv
,
11395 struct intel_shared_dpll
*pll
)
11397 /* PCH refclock must be enabled first */
11398 ibx_assert_pch_refclk_enabled(dev_priv
);
11400 I915_WRITE(PCH_DPLL(pll
->id
), pll
->hw_state
.dpll
);
11402 /* Wait for the clocks to stabilize. */
11403 POSTING_READ(PCH_DPLL(pll
->id
));
11406 /* The pixel multiplier can only be updated once the
11407 * DPLL is enabled and the clocks are stable.
11409 * So write it again.
11411 I915_WRITE(PCH_DPLL(pll
->id
), pll
->hw_state
.dpll
);
11412 POSTING_READ(PCH_DPLL(pll
->id
));
11416 static void ibx_pch_dpll_disable(struct drm_i915_private
*dev_priv
,
11417 struct intel_shared_dpll
*pll
)
11419 struct drm_device
*dev
= dev_priv
->dev
;
11420 struct intel_crtc
*crtc
;
11422 /* Make sure no transcoder isn't still depending on us. */
11423 for_each_intel_crtc(dev
, crtc
) {
11424 if (intel_crtc_to_shared_dpll(crtc
) == pll
)
11425 assert_pch_transcoder_disabled(dev_priv
, crtc
->pipe
);
11428 I915_WRITE(PCH_DPLL(pll
->id
), 0);
11429 POSTING_READ(PCH_DPLL(pll
->id
));
11433 static char *ibx_pch_dpll_names
[] = {
11438 static void ibx_pch_dpll_init(struct drm_device
*dev
)
11440 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11443 dev_priv
->num_shared_dpll
= 2;
11445 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
11446 dev_priv
->shared_dplls
[i
].id
= i
;
11447 dev_priv
->shared_dplls
[i
].name
= ibx_pch_dpll_names
[i
];
11448 dev_priv
->shared_dplls
[i
].mode_set
= ibx_pch_dpll_mode_set
;
11449 dev_priv
->shared_dplls
[i
].enable
= ibx_pch_dpll_enable
;
11450 dev_priv
->shared_dplls
[i
].disable
= ibx_pch_dpll_disable
;
11451 dev_priv
->shared_dplls
[i
].get_hw_state
=
11452 ibx_pch_dpll_get_hw_state
;
11456 static void intel_shared_dpll_init(struct drm_device
*dev
)
11458 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11461 intel_ddi_pll_init(dev
);
11462 else if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
11463 ibx_pch_dpll_init(dev
);
11465 dev_priv
->num_shared_dpll
= 0;
11467 BUG_ON(dev_priv
->num_shared_dpll
> I915_NUM_PLLS
);
11471 intel_primary_plane_disable(struct drm_plane
*plane
)
11473 struct drm_device
*dev
= plane
->dev
;
11474 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11475 struct intel_plane
*intel_plane
= to_intel_plane(plane
);
11476 struct intel_crtc
*intel_crtc
;
11481 BUG_ON(!plane
->crtc
);
11483 intel_crtc
= to_intel_crtc(plane
->crtc
);
11486 * Even though we checked plane->fb above, it's still possible that
11487 * the primary plane has been implicitly disabled because the crtc
11488 * coordinates given weren't visible, or because we detected
11489 * that it was 100% covered by a sprite plane. Or, the CRTC may be
11490 * off and we've set a fb, but haven't actually turned on the CRTC yet.
11491 * In either case, we need to unpin the FB and let the fb pointer get
11492 * updated, but otherwise we don't need to touch the hardware.
11494 if (!intel_crtc
->primary_enabled
)
11495 goto disable_unpin
;
11497 intel_crtc_wait_for_pending_flips(plane
->crtc
);
11498 intel_disable_primary_hw_plane(dev_priv
, intel_plane
->plane
,
11499 intel_plane
->pipe
);
11501 mutex_lock(&dev
->struct_mutex
);
11502 i915_gem_track_fb(intel_fb_obj(plane
->fb
), NULL
,
11503 INTEL_FRONTBUFFER_PRIMARY(intel_crtc
->pipe
));
11504 intel_unpin_fb_obj(intel_fb_obj(plane
->fb
));
11505 mutex_unlock(&dev
->struct_mutex
);
11512 intel_primary_plane_setplane(struct drm_plane
*plane
, struct drm_crtc
*crtc
,
11513 struct drm_framebuffer
*fb
, int crtc_x
, int crtc_y
,
11514 unsigned int crtc_w
, unsigned int crtc_h
,
11515 uint32_t src_x
, uint32_t src_y
,
11516 uint32_t src_w
, uint32_t src_h
)
11518 struct drm_device
*dev
= crtc
->dev
;
11519 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11520 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11521 struct intel_plane
*intel_plane
= to_intel_plane(plane
);
11522 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
11523 struct drm_i915_gem_object
*old_obj
= intel_fb_obj(plane
->fb
);
11524 struct drm_rect dest
= {
11525 /* integer pixels */
11528 .x2
= crtc_x
+ crtc_w
,
11529 .y2
= crtc_y
+ crtc_h
,
11531 struct drm_rect src
= {
11532 /* 16.16 fixed point */
11535 .x2
= src_x
+ src_w
,
11536 .y2
= src_y
+ src_h
,
11538 const struct drm_rect clip
= {
11539 /* integer pixels */
11540 .x2
= intel_crtc
->active
? intel_crtc
->config
.pipe_src_w
: 0,
11541 .y2
= intel_crtc
->active
? intel_crtc
->config
.pipe_src_h
: 0,
11546 ret
= drm_plane_helper_check_update(plane
, crtc
, fb
,
11547 &src
, &dest
, &clip
,
11548 DRM_PLANE_HELPER_NO_SCALING
,
11549 DRM_PLANE_HELPER_NO_SCALING
,
11550 false, true, &visible
);
11556 * If the CRTC isn't enabled, we're just pinning the framebuffer,
11557 * updating the fb pointer, and returning without touching the
11558 * hardware. This allows us to later do a drmModeSetCrtc with fb=-1 to
11559 * turn on the display with all planes setup as desired.
11561 if (!crtc
->enabled
) {
11562 mutex_lock(&dev
->struct_mutex
);
11565 * If we already called setplane while the crtc was disabled,
11566 * we may have an fb pinned; unpin it.
11569 intel_unpin_fb_obj(old_obj
);
11571 i915_gem_track_fb(old_obj
, obj
,
11572 INTEL_FRONTBUFFER_PRIMARY(intel_crtc
->pipe
));
11574 /* Pin and return without programming hardware */
11575 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, NULL
);
11576 mutex_unlock(&dev
->struct_mutex
);
11581 intel_crtc_wait_for_pending_flips(crtc
);
11584 * If clipping results in a non-visible primary plane, we'll disable
11585 * the primary plane. Note that this is a bit different than what
11586 * happens if userspace explicitly disables the plane by passing fb=0
11587 * because plane->fb still gets set and pinned.
11590 mutex_lock(&dev
->struct_mutex
);
11593 * Try to pin the new fb first so that we can bail out if we
11596 if (plane
->fb
!= fb
) {
11597 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, NULL
);
11599 mutex_unlock(&dev
->struct_mutex
);
11604 i915_gem_track_fb(old_obj
, obj
,
11605 INTEL_FRONTBUFFER_PRIMARY(intel_crtc
->pipe
));
11607 if (intel_crtc
->primary_enabled
)
11608 intel_disable_primary_hw_plane(dev_priv
,
11609 intel_plane
->plane
,
11610 intel_plane
->pipe
);
11613 if (plane
->fb
!= fb
)
11615 intel_unpin_fb_obj(old_obj
);
11617 mutex_unlock(&dev
->struct_mutex
);
11622 ret
= intel_pipe_set_base(crtc
, src
.x1
, src
.y1
, fb
);
11626 if (!intel_crtc
->primary_enabled
)
11627 intel_enable_primary_hw_plane(dev_priv
, intel_crtc
->plane
,
11633 /* Common destruction function for both primary and cursor planes */
11634 static void intel_plane_destroy(struct drm_plane
*plane
)
11636 struct intel_plane
*intel_plane
= to_intel_plane(plane
);
11637 drm_plane_cleanup(plane
);
11638 kfree(intel_plane
);
11641 static const struct drm_plane_funcs intel_primary_plane_funcs
= {
11642 .update_plane
= intel_primary_plane_setplane
,
11643 .disable_plane
= intel_primary_plane_disable
,
11644 .destroy
= intel_plane_destroy
,
11647 static struct drm_plane
*intel_primary_plane_create(struct drm_device
*dev
,
11650 struct intel_plane
*primary
;
11651 const uint32_t *intel_primary_formats
;
11654 primary
= kzalloc(sizeof(*primary
), GFP_KERNEL
);
11655 if (primary
== NULL
)
11658 primary
->can_scale
= false;
11659 primary
->max_downscale
= 1;
11660 primary
->pipe
= pipe
;
11661 primary
->plane
= pipe
;
11662 if (HAS_FBC(dev
) && INTEL_INFO(dev
)->gen
< 4)
11663 primary
->plane
= !pipe
;
11665 if (INTEL_INFO(dev
)->gen
<= 3) {
11666 intel_primary_formats
= intel_primary_formats_gen2
;
11667 num_formats
= ARRAY_SIZE(intel_primary_formats_gen2
);
11669 intel_primary_formats
= intel_primary_formats_gen4
;
11670 num_formats
= ARRAY_SIZE(intel_primary_formats_gen4
);
11673 drm_universal_plane_init(dev
, &primary
->base
, 0,
11674 &intel_primary_plane_funcs
,
11675 intel_primary_formats
, num_formats
,
11676 DRM_PLANE_TYPE_PRIMARY
);
11677 return &primary
->base
;
11681 intel_cursor_plane_disable(struct drm_plane
*plane
)
11686 BUG_ON(!plane
->crtc
);
11688 return intel_crtc_cursor_set_obj(plane
->crtc
, NULL
, 0, 0);
11692 intel_cursor_plane_update(struct drm_plane
*plane
, struct drm_crtc
*crtc
,
11693 struct drm_framebuffer
*fb
, int crtc_x
, int crtc_y
,
11694 unsigned int crtc_w
, unsigned int crtc_h
,
11695 uint32_t src_x
, uint32_t src_y
,
11696 uint32_t src_w
, uint32_t src_h
)
11698 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11699 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
11700 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
11701 struct drm_rect dest
= {
11702 /* integer pixels */
11705 .x2
= crtc_x
+ crtc_w
,
11706 .y2
= crtc_y
+ crtc_h
,
11708 struct drm_rect src
= {
11709 /* 16.16 fixed point */
11712 .x2
= src_x
+ src_w
,
11713 .y2
= src_y
+ src_h
,
11715 const struct drm_rect clip
= {
11716 /* integer pixels */
11717 .x2
= intel_crtc
->config
.pipe_src_w
,
11718 .y2
= intel_crtc
->config
.pipe_src_h
,
11723 ret
= drm_plane_helper_check_update(plane
, crtc
, fb
,
11724 &src
, &dest
, &clip
,
11725 DRM_PLANE_HELPER_NO_SCALING
,
11726 DRM_PLANE_HELPER_NO_SCALING
,
11727 true, true, &visible
);
11731 crtc
->cursor_x
= crtc_x
;
11732 crtc
->cursor_y
= crtc_y
;
11733 if (fb
!= crtc
->cursor
->fb
) {
11734 return intel_crtc_cursor_set_obj(crtc
, obj
, crtc_w
, crtc_h
);
11736 intel_crtc_update_cursor(crtc
, visible
);
11740 static const struct drm_plane_funcs intel_cursor_plane_funcs
= {
11741 .update_plane
= intel_cursor_plane_update
,
11742 .disable_plane
= intel_cursor_plane_disable
,
11743 .destroy
= intel_plane_destroy
,
11746 static struct drm_plane
*intel_cursor_plane_create(struct drm_device
*dev
,
11749 struct intel_plane
*cursor
;
11751 cursor
= kzalloc(sizeof(*cursor
), GFP_KERNEL
);
11752 if (cursor
== NULL
)
11755 cursor
->can_scale
= false;
11756 cursor
->max_downscale
= 1;
11757 cursor
->pipe
= pipe
;
11758 cursor
->plane
= pipe
;
11760 drm_universal_plane_init(dev
, &cursor
->base
, 0,
11761 &intel_cursor_plane_funcs
,
11762 intel_cursor_formats
,
11763 ARRAY_SIZE(intel_cursor_formats
),
11764 DRM_PLANE_TYPE_CURSOR
);
11765 return &cursor
->base
;
11768 static void intel_crtc_init(struct drm_device
*dev
, int pipe
)
11770 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11771 struct intel_crtc
*intel_crtc
;
11772 struct drm_plane
*primary
= NULL
;
11773 struct drm_plane
*cursor
= NULL
;
11776 intel_crtc
= kzalloc(sizeof(*intel_crtc
), GFP_KERNEL
);
11777 if (intel_crtc
== NULL
)
11780 primary
= intel_primary_plane_create(dev
, pipe
);
11784 cursor
= intel_cursor_plane_create(dev
, pipe
);
11788 ret
= drm_crtc_init_with_planes(dev
, &intel_crtc
->base
, primary
,
11789 cursor
, &intel_crtc_funcs
);
11793 drm_mode_crtc_set_gamma_size(&intel_crtc
->base
, 256);
11794 for (i
= 0; i
< 256; i
++) {
11795 intel_crtc
->lut_r
[i
] = i
;
11796 intel_crtc
->lut_g
[i
] = i
;
11797 intel_crtc
->lut_b
[i
] = i
;
11801 * On gen2/3 only plane A can do fbc, but the panel fitter and lvds port
11802 * is hooked to pipe B. Hence we want plane A feeding pipe B.
11804 intel_crtc
->pipe
= pipe
;
11805 intel_crtc
->plane
= pipe
;
11806 if (HAS_FBC(dev
) && INTEL_INFO(dev
)->gen
< 4) {
11807 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
11808 intel_crtc
->plane
= !pipe
;
11811 intel_crtc
->cursor_base
= ~0;
11812 intel_crtc
->cursor_cntl
= ~0;
11814 init_waitqueue_head(&intel_crtc
->vbl_wait
);
11816 BUG_ON(pipe
>= ARRAY_SIZE(dev_priv
->plane_to_crtc_mapping
) ||
11817 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] != NULL
);
11818 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] = &intel_crtc
->base
;
11819 dev_priv
->pipe_to_crtc_mapping
[intel_crtc
->pipe
] = &intel_crtc
->base
;
11821 drm_crtc_helper_add(&intel_crtc
->base
, &intel_helper_funcs
);
11823 WARN_ON(drm_crtc_index(&intel_crtc
->base
) != intel_crtc
->pipe
);
11828 drm_plane_cleanup(primary
);
11830 drm_plane_cleanup(cursor
);
11834 enum pipe
intel_get_pipe_from_connector(struct intel_connector
*connector
)
11836 struct drm_encoder
*encoder
= connector
->base
.encoder
;
11837 struct drm_device
*dev
= connector
->base
.dev
;
11839 WARN_ON(!drm_modeset_is_locked(&dev
->mode_config
.connection_mutex
));
11842 return INVALID_PIPE
;
11844 return to_intel_crtc(encoder
->crtc
)->pipe
;
11847 int intel_get_pipe_from_crtc_id(struct drm_device
*dev
, void *data
,
11848 struct drm_file
*file
)
11850 struct drm_i915_get_pipe_from_crtc_id
*pipe_from_crtc_id
= data
;
11851 struct drm_crtc
*drmmode_crtc
;
11852 struct intel_crtc
*crtc
;
11854 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
11857 drmmode_crtc
= drm_crtc_find(dev
, pipe_from_crtc_id
->crtc_id
);
11859 if (!drmmode_crtc
) {
11860 DRM_ERROR("no such CRTC id\n");
11864 crtc
= to_intel_crtc(drmmode_crtc
);
11865 pipe_from_crtc_id
->pipe
= crtc
->pipe
;
11870 static int intel_encoder_clones(struct intel_encoder
*encoder
)
11872 struct drm_device
*dev
= encoder
->base
.dev
;
11873 struct intel_encoder
*source_encoder
;
11874 int index_mask
= 0;
11877 list_for_each_entry(source_encoder
,
11878 &dev
->mode_config
.encoder_list
, base
.head
) {
11879 if (encoders_cloneable(encoder
, source_encoder
))
11880 index_mask
|= (1 << entry
);
11888 static bool has_edp_a(struct drm_device
*dev
)
11890 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11892 if (!IS_MOBILE(dev
))
11895 if ((I915_READ(DP_A
) & DP_DETECTED
) == 0)
11898 if (IS_GEN5(dev
) && (I915_READ(FUSE_STRAP
) & ILK_eDP_A_DISABLE
))
11904 const char *intel_output_name(int output
)
11906 static const char *names
[] = {
11907 [INTEL_OUTPUT_UNUSED
] = "Unused",
11908 [INTEL_OUTPUT_ANALOG
] = "Analog",
11909 [INTEL_OUTPUT_DVO
] = "DVO",
11910 [INTEL_OUTPUT_SDVO
] = "SDVO",
11911 [INTEL_OUTPUT_LVDS
] = "LVDS",
11912 [INTEL_OUTPUT_TVOUT
] = "TV",
11913 [INTEL_OUTPUT_HDMI
] = "HDMI",
11914 [INTEL_OUTPUT_DISPLAYPORT
] = "DisplayPort",
11915 [INTEL_OUTPUT_EDP
] = "eDP",
11916 [INTEL_OUTPUT_DSI
] = "DSI",
11917 [INTEL_OUTPUT_UNKNOWN
] = "Unknown",
11920 if (output
< 0 || output
>= ARRAY_SIZE(names
) || !names
[output
])
11923 return names
[output
];
11926 static bool intel_crt_present(struct drm_device
*dev
)
11928 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11933 if (IS_CHERRYVIEW(dev
))
11936 if (IS_VALLEYVIEW(dev
) && !dev_priv
->vbt
.int_crt_support
)
11942 static void intel_setup_outputs(struct drm_device
*dev
)
11944 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11945 struct intel_encoder
*encoder
;
11946 bool dpd_is_edp
= false;
11948 intel_lvds_init(dev
);
11950 if (intel_crt_present(dev
))
11951 intel_crt_init(dev
);
11953 if (HAS_DDI(dev
)) {
11956 /* Haswell uses DDI functions to detect digital outputs */
11957 found
= I915_READ(DDI_BUF_CTL_A
) & DDI_INIT_DISPLAY_DETECTED
;
11958 /* DDI A only supports eDP */
11960 intel_ddi_init(dev
, PORT_A
);
11962 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
11964 found
= I915_READ(SFUSE_STRAP
);
11966 if (found
& SFUSE_STRAP_DDIB_DETECTED
)
11967 intel_ddi_init(dev
, PORT_B
);
11968 if (found
& SFUSE_STRAP_DDIC_DETECTED
)
11969 intel_ddi_init(dev
, PORT_C
);
11970 if (found
& SFUSE_STRAP_DDID_DETECTED
)
11971 intel_ddi_init(dev
, PORT_D
);
11972 } else if (HAS_PCH_SPLIT(dev
)) {
11974 dpd_is_edp
= intel_dp_is_edp(dev
, PORT_D
);
11976 if (has_edp_a(dev
))
11977 intel_dp_init(dev
, DP_A
, PORT_A
);
11979 if (I915_READ(PCH_HDMIB
) & SDVO_DETECTED
) {
11980 /* PCH SDVOB multiplex with HDMIB */
11981 found
= intel_sdvo_init(dev
, PCH_SDVOB
, true);
11983 intel_hdmi_init(dev
, PCH_HDMIB
, PORT_B
);
11984 if (!found
&& (I915_READ(PCH_DP_B
) & DP_DETECTED
))
11985 intel_dp_init(dev
, PCH_DP_B
, PORT_B
);
11988 if (I915_READ(PCH_HDMIC
) & SDVO_DETECTED
)
11989 intel_hdmi_init(dev
, PCH_HDMIC
, PORT_C
);
11991 if (!dpd_is_edp
&& I915_READ(PCH_HDMID
) & SDVO_DETECTED
)
11992 intel_hdmi_init(dev
, PCH_HDMID
, PORT_D
);
11994 if (I915_READ(PCH_DP_C
) & DP_DETECTED
)
11995 intel_dp_init(dev
, PCH_DP_C
, PORT_C
);
11997 if (I915_READ(PCH_DP_D
) & DP_DETECTED
)
11998 intel_dp_init(dev
, PCH_DP_D
, PORT_D
);
11999 } else if (IS_VALLEYVIEW(dev
)) {
12000 if (I915_READ(VLV_DISPLAY_BASE
+ GEN4_HDMIB
) & SDVO_DETECTED
) {
12001 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ GEN4_HDMIB
,
12003 if (I915_READ(VLV_DISPLAY_BASE
+ DP_B
) & DP_DETECTED
)
12004 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_B
, PORT_B
);
12007 if (I915_READ(VLV_DISPLAY_BASE
+ GEN4_HDMIC
) & SDVO_DETECTED
) {
12008 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ GEN4_HDMIC
,
12010 if (I915_READ(VLV_DISPLAY_BASE
+ DP_C
) & DP_DETECTED
)
12011 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_C
, PORT_C
);
12014 if (IS_CHERRYVIEW(dev
)) {
12015 if (I915_READ(VLV_DISPLAY_BASE
+ CHV_HDMID
) & SDVO_DETECTED
) {
12016 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ CHV_HDMID
,
12018 if (I915_READ(VLV_DISPLAY_BASE
+ DP_D
) & DP_DETECTED
)
12019 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_D
, PORT_D
);
12023 intel_dsi_init(dev
);
12024 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev
)) {
12025 bool found
= false;
12027 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
12028 DRM_DEBUG_KMS("probing SDVOB\n");
12029 found
= intel_sdvo_init(dev
, GEN3_SDVOB
, true);
12030 if (!found
&& SUPPORTS_INTEGRATED_HDMI(dev
)) {
12031 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
12032 intel_hdmi_init(dev
, GEN4_HDMIB
, PORT_B
);
12035 if (!found
&& SUPPORTS_INTEGRATED_DP(dev
))
12036 intel_dp_init(dev
, DP_B
, PORT_B
);
12039 /* Before G4X SDVOC doesn't have its own detect register */
12041 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
12042 DRM_DEBUG_KMS("probing SDVOC\n");
12043 found
= intel_sdvo_init(dev
, GEN3_SDVOC
, false);
12046 if (!found
&& (I915_READ(GEN3_SDVOC
) & SDVO_DETECTED
)) {
12048 if (SUPPORTS_INTEGRATED_HDMI(dev
)) {
12049 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
12050 intel_hdmi_init(dev
, GEN4_HDMIC
, PORT_C
);
12052 if (SUPPORTS_INTEGRATED_DP(dev
))
12053 intel_dp_init(dev
, DP_C
, PORT_C
);
12056 if (SUPPORTS_INTEGRATED_DP(dev
) &&
12057 (I915_READ(DP_D
) & DP_DETECTED
))
12058 intel_dp_init(dev
, DP_D
, PORT_D
);
12059 } else if (IS_GEN2(dev
))
12060 intel_dvo_init(dev
);
12062 if (SUPPORTS_TV(dev
))
12063 intel_tv_init(dev
);
12065 intel_edp_psr_init(dev
);
12067 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, base
.head
) {
12068 encoder
->base
.possible_crtcs
= encoder
->crtc_mask
;
12069 encoder
->base
.possible_clones
=
12070 intel_encoder_clones(encoder
);
12073 intel_init_pch_refclk(dev
);
12075 drm_helper_move_panel_connectors_to_head(dev
);
12078 static void intel_user_framebuffer_destroy(struct drm_framebuffer
*fb
)
12080 struct drm_device
*dev
= fb
->dev
;
12081 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
12083 drm_framebuffer_cleanup(fb
);
12084 mutex_lock(&dev
->struct_mutex
);
12085 WARN_ON(!intel_fb
->obj
->framebuffer_references
--);
12086 drm_gem_object_unreference(&intel_fb
->obj
->base
);
12087 mutex_unlock(&dev
->struct_mutex
);
12091 static int intel_user_framebuffer_create_handle(struct drm_framebuffer
*fb
,
12092 struct drm_file
*file
,
12093 unsigned int *handle
)
12095 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
12096 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
12098 return drm_gem_handle_create(file
, &obj
->base
, handle
);
12101 static const struct drm_framebuffer_funcs intel_fb_funcs
= {
12102 .destroy
= intel_user_framebuffer_destroy
,
12103 .create_handle
= intel_user_framebuffer_create_handle
,
12106 static int intel_framebuffer_init(struct drm_device
*dev
,
12107 struct intel_framebuffer
*intel_fb
,
12108 struct drm_mode_fb_cmd2
*mode_cmd
,
12109 struct drm_i915_gem_object
*obj
)
12111 int aligned_height
;
12115 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
12117 if (obj
->tiling_mode
== I915_TILING_Y
) {
12118 DRM_DEBUG("hardware does not support tiling Y\n");
12122 if (mode_cmd
->pitches
[0] & 63) {
12123 DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n",
12124 mode_cmd
->pitches
[0]);
12128 if (INTEL_INFO(dev
)->gen
>= 5 && !IS_VALLEYVIEW(dev
)) {
12129 pitch_limit
= 32*1024;
12130 } else if (INTEL_INFO(dev
)->gen
>= 4) {
12131 if (obj
->tiling_mode
)
12132 pitch_limit
= 16*1024;
12134 pitch_limit
= 32*1024;
12135 } else if (INTEL_INFO(dev
)->gen
>= 3) {
12136 if (obj
->tiling_mode
)
12137 pitch_limit
= 8*1024;
12139 pitch_limit
= 16*1024;
12141 /* XXX DSPC is limited to 4k tiled */
12142 pitch_limit
= 8*1024;
12144 if (mode_cmd
->pitches
[0] > pitch_limit
) {
12145 DRM_DEBUG("%s pitch (%d) must be at less than %d\n",
12146 obj
->tiling_mode
? "tiled" : "linear",
12147 mode_cmd
->pitches
[0], pitch_limit
);
12151 if (obj
->tiling_mode
!= I915_TILING_NONE
&&
12152 mode_cmd
->pitches
[0] != obj
->stride
) {
12153 DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n",
12154 mode_cmd
->pitches
[0], obj
->stride
);
12158 /* Reject formats not supported by any plane early. */
12159 switch (mode_cmd
->pixel_format
) {
12160 case DRM_FORMAT_C8
:
12161 case DRM_FORMAT_RGB565
:
12162 case DRM_FORMAT_XRGB8888
:
12163 case DRM_FORMAT_ARGB8888
:
12165 case DRM_FORMAT_XRGB1555
:
12166 case DRM_FORMAT_ARGB1555
:
12167 if (INTEL_INFO(dev
)->gen
> 3) {
12168 DRM_DEBUG("unsupported pixel format: %s\n",
12169 drm_get_format_name(mode_cmd
->pixel_format
));
12173 case DRM_FORMAT_XBGR8888
:
12174 case DRM_FORMAT_ABGR8888
:
12175 case DRM_FORMAT_XRGB2101010
:
12176 case DRM_FORMAT_ARGB2101010
:
12177 case DRM_FORMAT_XBGR2101010
:
12178 case DRM_FORMAT_ABGR2101010
:
12179 if (INTEL_INFO(dev
)->gen
< 4) {
12180 DRM_DEBUG("unsupported pixel format: %s\n",
12181 drm_get_format_name(mode_cmd
->pixel_format
));
12185 case DRM_FORMAT_YUYV
:
12186 case DRM_FORMAT_UYVY
:
12187 case DRM_FORMAT_YVYU
:
12188 case DRM_FORMAT_VYUY
:
12189 if (INTEL_INFO(dev
)->gen
< 5) {
12190 DRM_DEBUG("unsupported pixel format: %s\n",
12191 drm_get_format_name(mode_cmd
->pixel_format
));
12196 DRM_DEBUG("unsupported pixel format: %s\n",
12197 drm_get_format_name(mode_cmd
->pixel_format
));
12201 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
12202 if (mode_cmd
->offsets
[0] != 0)
12205 aligned_height
= intel_align_height(dev
, mode_cmd
->height
,
12207 /* FIXME drm helper for size checks (especially planar formats)? */
12208 if (obj
->base
.size
< aligned_height
* mode_cmd
->pitches
[0])
12211 drm_helper_mode_fill_fb_struct(&intel_fb
->base
, mode_cmd
);
12212 intel_fb
->obj
= obj
;
12213 intel_fb
->obj
->framebuffer_references
++;
12215 ret
= drm_framebuffer_init(dev
, &intel_fb
->base
, &intel_fb_funcs
);
12217 DRM_ERROR("framebuffer init failed %d\n", ret
);
12224 static struct drm_framebuffer
*
12225 intel_user_framebuffer_create(struct drm_device
*dev
,
12226 struct drm_file
*filp
,
12227 struct drm_mode_fb_cmd2
*mode_cmd
)
12229 struct drm_i915_gem_object
*obj
;
12231 obj
= to_intel_bo(drm_gem_object_lookup(dev
, filp
,
12232 mode_cmd
->handles
[0]));
12233 if (&obj
->base
== NULL
)
12234 return ERR_PTR(-ENOENT
);
12236 return intel_framebuffer_create(dev
, mode_cmd
, obj
);
12239 #ifndef CONFIG_DRM_I915_FBDEV
12240 static inline void intel_fbdev_output_poll_changed(struct drm_device
*dev
)
12245 static const struct drm_mode_config_funcs intel_mode_funcs
= {
12246 .fb_create
= intel_user_framebuffer_create
,
12247 .output_poll_changed
= intel_fbdev_output_poll_changed
,
12250 /* Set up chip specific display functions */
12251 static void intel_init_display(struct drm_device
*dev
)
12253 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12255 if (HAS_PCH_SPLIT(dev
) || IS_G4X(dev
))
12256 dev_priv
->display
.find_dpll
= g4x_find_best_dpll
;
12257 else if (IS_CHERRYVIEW(dev
))
12258 dev_priv
->display
.find_dpll
= chv_find_best_dpll
;
12259 else if (IS_VALLEYVIEW(dev
))
12260 dev_priv
->display
.find_dpll
= vlv_find_best_dpll
;
12261 else if (IS_PINEVIEW(dev
))
12262 dev_priv
->display
.find_dpll
= pnv_find_best_dpll
;
12264 dev_priv
->display
.find_dpll
= i9xx_find_best_dpll
;
12266 if (HAS_DDI(dev
)) {
12267 dev_priv
->display
.get_pipe_config
= haswell_get_pipe_config
;
12268 dev_priv
->display
.get_plane_config
= ironlake_get_plane_config
;
12269 dev_priv
->display
.crtc_mode_set
= haswell_crtc_mode_set
;
12270 dev_priv
->display
.crtc_enable
= haswell_crtc_enable
;
12271 dev_priv
->display
.crtc_disable
= haswell_crtc_disable
;
12272 dev_priv
->display
.off
= ironlake_crtc_off
;
12273 dev_priv
->display
.update_primary_plane
=
12274 ironlake_update_primary_plane
;
12275 } else if (HAS_PCH_SPLIT(dev
)) {
12276 dev_priv
->display
.get_pipe_config
= ironlake_get_pipe_config
;
12277 dev_priv
->display
.get_plane_config
= ironlake_get_plane_config
;
12278 dev_priv
->display
.crtc_mode_set
= ironlake_crtc_mode_set
;
12279 dev_priv
->display
.crtc_enable
= ironlake_crtc_enable
;
12280 dev_priv
->display
.crtc_disable
= ironlake_crtc_disable
;
12281 dev_priv
->display
.off
= ironlake_crtc_off
;
12282 dev_priv
->display
.update_primary_plane
=
12283 ironlake_update_primary_plane
;
12284 } else if (IS_VALLEYVIEW(dev
)) {
12285 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
12286 dev_priv
->display
.get_plane_config
= i9xx_get_plane_config
;
12287 dev_priv
->display
.crtc_mode_set
= i9xx_crtc_mode_set
;
12288 dev_priv
->display
.crtc_enable
= valleyview_crtc_enable
;
12289 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
12290 dev_priv
->display
.off
= i9xx_crtc_off
;
12291 dev_priv
->display
.update_primary_plane
=
12292 i9xx_update_primary_plane
;
12294 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
12295 dev_priv
->display
.get_plane_config
= i9xx_get_plane_config
;
12296 dev_priv
->display
.crtc_mode_set
= i9xx_crtc_mode_set
;
12297 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
12298 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
12299 dev_priv
->display
.off
= i9xx_crtc_off
;
12300 dev_priv
->display
.update_primary_plane
=
12301 i9xx_update_primary_plane
;
12304 /* Returns the core display clock speed */
12305 if (IS_VALLEYVIEW(dev
))
12306 dev_priv
->display
.get_display_clock_speed
=
12307 valleyview_get_display_clock_speed
;
12308 else if (IS_I945G(dev
) || (IS_G33(dev
) && !IS_PINEVIEW_M(dev
)))
12309 dev_priv
->display
.get_display_clock_speed
=
12310 i945_get_display_clock_speed
;
12311 else if (IS_I915G(dev
))
12312 dev_priv
->display
.get_display_clock_speed
=
12313 i915_get_display_clock_speed
;
12314 else if (IS_I945GM(dev
) || IS_845G(dev
))
12315 dev_priv
->display
.get_display_clock_speed
=
12316 i9xx_misc_get_display_clock_speed
;
12317 else if (IS_PINEVIEW(dev
))
12318 dev_priv
->display
.get_display_clock_speed
=
12319 pnv_get_display_clock_speed
;
12320 else if (IS_I915GM(dev
))
12321 dev_priv
->display
.get_display_clock_speed
=
12322 i915gm_get_display_clock_speed
;
12323 else if (IS_I865G(dev
))
12324 dev_priv
->display
.get_display_clock_speed
=
12325 i865_get_display_clock_speed
;
12326 else if (IS_I85X(dev
))
12327 dev_priv
->display
.get_display_clock_speed
=
12328 i855_get_display_clock_speed
;
12329 else /* 852, 830 */
12330 dev_priv
->display
.get_display_clock_speed
=
12331 i830_get_display_clock_speed
;
12333 if (HAS_PCH_SPLIT(dev
)) {
12334 if (IS_GEN5(dev
)) {
12335 dev_priv
->display
.fdi_link_train
= ironlake_fdi_link_train
;
12336 dev_priv
->display
.write_eld
= ironlake_write_eld
;
12337 } else if (IS_GEN6(dev
)) {
12338 dev_priv
->display
.fdi_link_train
= gen6_fdi_link_train
;
12339 dev_priv
->display
.write_eld
= ironlake_write_eld
;
12340 dev_priv
->display
.modeset_global_resources
=
12341 snb_modeset_global_resources
;
12342 } else if (IS_IVYBRIDGE(dev
)) {
12343 /* FIXME: detect B0+ stepping and use auto training */
12344 dev_priv
->display
.fdi_link_train
= ivb_manual_fdi_link_train
;
12345 dev_priv
->display
.write_eld
= ironlake_write_eld
;
12346 dev_priv
->display
.modeset_global_resources
=
12347 ivb_modeset_global_resources
;
12348 } else if (IS_HASWELL(dev
) || IS_GEN8(dev
)) {
12349 dev_priv
->display
.fdi_link_train
= hsw_fdi_link_train
;
12350 dev_priv
->display
.write_eld
= haswell_write_eld
;
12351 dev_priv
->display
.modeset_global_resources
=
12352 haswell_modeset_global_resources
;
12354 } else if (IS_G4X(dev
)) {
12355 dev_priv
->display
.write_eld
= g4x_write_eld
;
12356 } else if (IS_VALLEYVIEW(dev
)) {
12357 dev_priv
->display
.modeset_global_resources
=
12358 valleyview_modeset_global_resources
;
12359 dev_priv
->display
.write_eld
= ironlake_write_eld
;
12362 /* Default just returns -ENODEV to indicate unsupported */
12363 dev_priv
->display
.queue_flip
= intel_default_queue_flip
;
12365 switch (INTEL_INFO(dev
)->gen
) {
12367 dev_priv
->display
.queue_flip
= intel_gen2_queue_flip
;
12371 dev_priv
->display
.queue_flip
= intel_gen3_queue_flip
;
12376 dev_priv
->display
.queue_flip
= intel_gen4_queue_flip
;
12380 dev_priv
->display
.queue_flip
= intel_gen6_queue_flip
;
12383 case 8: /* FIXME(BDW): Check that the gen8 RCS flip works. */
12384 dev_priv
->display
.queue_flip
= intel_gen7_queue_flip
;
12388 intel_panel_init_backlight_funcs(dev
);
12392 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
12393 * resume, or other times. This quirk makes sure that's the case for
12394 * affected systems.
12396 static void quirk_pipea_force(struct drm_device
*dev
)
12398 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12400 dev_priv
->quirks
|= QUIRK_PIPEA_FORCE
;
12401 DRM_INFO("applying pipe a force quirk\n");
12405 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
12407 static void quirk_ssc_force_disable(struct drm_device
*dev
)
12409 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12410 dev_priv
->quirks
|= QUIRK_LVDS_SSC_DISABLE
;
12411 DRM_INFO("applying lvds SSC disable quirk\n");
12415 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
12418 static void quirk_invert_brightness(struct drm_device
*dev
)
12420 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12421 dev_priv
->quirks
|= QUIRK_INVERT_BRIGHTNESS
;
12422 DRM_INFO("applying inverted panel brightness quirk\n");
12425 /* Some VBT's incorrectly indicate no backlight is present */
12426 static void quirk_backlight_present(struct drm_device
*dev
)
12428 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12429 dev_priv
->quirks
|= QUIRK_BACKLIGHT_PRESENT
;
12430 DRM_INFO("applying backlight present quirk\n");
12433 struct intel_quirk
{
12435 int subsystem_vendor
;
12436 int subsystem_device
;
12437 void (*hook
)(struct drm_device
*dev
);
12440 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
12441 struct intel_dmi_quirk
{
12442 void (*hook
)(struct drm_device
*dev
);
12443 const struct dmi_system_id (*dmi_id_list
)[];
12446 static int intel_dmi_reverse_brightness(const struct dmi_system_id
*id
)
12448 DRM_INFO("Backlight polarity reversed on %s\n", id
->ident
);
12452 static const struct intel_dmi_quirk intel_dmi_quirks
[] = {
12454 .dmi_id_list
= &(const struct dmi_system_id
[]) {
12456 .callback
= intel_dmi_reverse_brightness
,
12457 .ident
= "NCR Corporation",
12458 .matches
= {DMI_MATCH(DMI_SYS_VENDOR
, "NCR Corporation"),
12459 DMI_MATCH(DMI_PRODUCT_NAME
, ""),
12462 { } /* terminating entry */
12464 .hook
= quirk_invert_brightness
,
12468 static struct intel_quirk intel_quirks
[] = {
12469 /* HP Mini needs pipe A force quirk (LP: #322104) */
12470 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force
},
12472 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
12473 { 0x2592, 0x1179, 0x0001, quirk_pipea_force
},
12475 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
12476 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force
},
12478 /* Lenovo U160 cannot use SSC on LVDS */
12479 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable
},
12481 /* Sony Vaio Y cannot use SSC on LVDS */
12482 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable
},
12484 /* Acer Aspire 5734Z must invert backlight brightness */
12485 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness
},
12487 /* Acer/eMachines G725 */
12488 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness
},
12490 /* Acer/eMachines e725 */
12491 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness
},
12493 /* Acer/Packard Bell NCL20 */
12494 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness
},
12496 /* Acer Aspire 4736Z */
12497 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness
},
12499 /* Acer Aspire 5336 */
12500 { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness
},
12502 /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */
12503 { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present
},
12505 /* Toshiba CB35 Chromebook (Celeron 2955U) */
12506 { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present
},
12508 /* HP Chromebook 14 (Celeron 2955U) */
12509 { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present
},
12512 static void intel_init_quirks(struct drm_device
*dev
)
12514 struct pci_dev
*d
= dev
->pdev
;
12517 for (i
= 0; i
< ARRAY_SIZE(intel_quirks
); i
++) {
12518 struct intel_quirk
*q
= &intel_quirks
[i
];
12520 if (d
->device
== q
->device
&&
12521 (d
->subsystem_vendor
== q
->subsystem_vendor
||
12522 q
->subsystem_vendor
== PCI_ANY_ID
) &&
12523 (d
->subsystem_device
== q
->subsystem_device
||
12524 q
->subsystem_device
== PCI_ANY_ID
))
12527 for (i
= 0; i
< ARRAY_SIZE(intel_dmi_quirks
); i
++) {
12528 if (dmi_check_system(*intel_dmi_quirks
[i
].dmi_id_list
) != 0)
12529 intel_dmi_quirks
[i
].hook(dev
);
12533 /* Disable the VGA plane that we never use */
12534 static void i915_disable_vga(struct drm_device
*dev
)
12536 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12538 u32 vga_reg
= i915_vgacntrl_reg(dev
);
12540 /* WaEnableVGAAccessThroughIOPort:ctg,elk,ilk,snb,ivb,vlv,hsw */
12541 vga_get_uninterruptible(dev
->pdev
, VGA_RSRC_LEGACY_IO
);
12542 outb(SR01
, VGA_SR_INDEX
);
12543 sr1
= inb(VGA_SR_DATA
);
12544 outb(sr1
| 1<<5, VGA_SR_DATA
);
12545 vga_put(dev
->pdev
, VGA_RSRC_LEGACY_IO
);
12548 I915_WRITE(vga_reg
, VGA_DISP_DISABLE
);
12549 POSTING_READ(vga_reg
);
12552 void intel_modeset_init_hw(struct drm_device
*dev
)
12554 intel_prepare_ddi(dev
);
12556 if (IS_VALLEYVIEW(dev
))
12557 vlv_update_cdclk(dev
);
12559 intel_init_clock_gating(dev
);
12561 intel_reset_dpio(dev
);
12563 intel_enable_gt_powersave(dev
);
12566 void intel_modeset_suspend_hw(struct drm_device
*dev
)
12568 intel_suspend_hw(dev
);
12571 void intel_modeset_init(struct drm_device
*dev
)
12573 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12576 struct intel_crtc
*crtc
;
12578 drm_mode_config_init(dev
);
12580 dev
->mode_config
.min_width
= 0;
12581 dev
->mode_config
.min_height
= 0;
12583 dev
->mode_config
.preferred_depth
= 24;
12584 dev
->mode_config
.prefer_shadow
= 1;
12586 dev
->mode_config
.funcs
= &intel_mode_funcs
;
12588 intel_init_quirks(dev
);
12590 intel_init_pm(dev
);
12592 if (INTEL_INFO(dev
)->num_pipes
== 0)
12595 intel_init_display(dev
);
12597 if (IS_GEN2(dev
)) {
12598 dev
->mode_config
.max_width
= 2048;
12599 dev
->mode_config
.max_height
= 2048;
12600 } else if (IS_GEN3(dev
)) {
12601 dev
->mode_config
.max_width
= 4096;
12602 dev
->mode_config
.max_height
= 4096;
12604 dev
->mode_config
.max_width
= 8192;
12605 dev
->mode_config
.max_height
= 8192;
12608 if (IS_GEN2(dev
)) {
12609 dev
->mode_config
.cursor_width
= GEN2_CURSOR_WIDTH
;
12610 dev
->mode_config
.cursor_height
= GEN2_CURSOR_HEIGHT
;
12612 dev
->mode_config
.cursor_width
= MAX_CURSOR_WIDTH
;
12613 dev
->mode_config
.cursor_height
= MAX_CURSOR_HEIGHT
;
12616 dev
->mode_config
.fb_base
= dev_priv
->gtt
.mappable_base
;
12618 DRM_DEBUG_KMS("%d display pipe%s available.\n",
12619 INTEL_INFO(dev
)->num_pipes
,
12620 INTEL_INFO(dev
)->num_pipes
> 1 ? "s" : "");
12622 for_each_pipe(pipe
) {
12623 intel_crtc_init(dev
, pipe
);
12624 for_each_sprite(pipe
, sprite
) {
12625 ret
= intel_plane_init(dev
, pipe
, sprite
);
12627 DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n",
12628 pipe_name(pipe
), sprite_name(pipe
, sprite
), ret
);
12632 intel_init_dpio(dev
);
12633 intel_reset_dpio(dev
);
12635 intel_shared_dpll_init(dev
);
12637 /* Just disable it once at startup */
12638 i915_disable_vga(dev
);
12639 intel_setup_outputs(dev
);
12641 /* Just in case the BIOS is doing something questionable. */
12642 intel_disable_fbc(dev
);
12644 drm_modeset_lock_all(dev
);
12645 intel_modeset_setup_hw_state(dev
, false);
12646 drm_modeset_unlock_all(dev
);
12648 for_each_intel_crtc(dev
, crtc
) {
12653 * Note that reserving the BIOS fb up front prevents us
12654 * from stuffing other stolen allocations like the ring
12655 * on top. This prevents some ugliness at boot time, and
12656 * can even allow for smooth boot transitions if the BIOS
12657 * fb is large enough for the active pipe configuration.
12659 if (dev_priv
->display
.get_plane_config
) {
12660 dev_priv
->display
.get_plane_config(crtc
,
12661 &crtc
->plane_config
);
12663 * If the fb is shared between multiple heads, we'll
12664 * just get the first one.
12666 intel_find_plane_obj(crtc
, &crtc
->plane_config
);
12671 static void intel_enable_pipe_a(struct drm_device
*dev
)
12673 struct intel_connector
*connector
;
12674 struct drm_connector
*crt
= NULL
;
12675 struct intel_load_detect_pipe load_detect_temp
;
12676 struct drm_modeset_acquire_ctx ctx
;
12678 /* We can't just switch on the pipe A, we need to set things up with a
12679 * proper mode and output configuration. As a gross hack, enable pipe A
12680 * by enabling the load detect pipe once. */
12681 list_for_each_entry(connector
,
12682 &dev
->mode_config
.connector_list
,
12684 if (connector
->encoder
->type
== INTEL_OUTPUT_ANALOG
) {
12685 crt
= &connector
->base
;
12693 if (intel_get_load_detect_pipe(crt
, NULL
, &load_detect_temp
, &ctx
))
12694 intel_release_load_detect_pipe(crt
, &load_detect_temp
, &ctx
);
12700 intel_check_plane_mapping(struct intel_crtc
*crtc
)
12702 struct drm_device
*dev
= crtc
->base
.dev
;
12703 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12706 if (INTEL_INFO(dev
)->num_pipes
== 1)
12709 reg
= DSPCNTR(!crtc
->plane
);
12710 val
= I915_READ(reg
);
12712 if ((val
& DISPLAY_PLANE_ENABLE
) &&
12713 (!!(val
& DISPPLANE_SEL_PIPE_MASK
) == crtc
->pipe
))
12719 static void intel_sanitize_crtc(struct intel_crtc
*crtc
)
12721 struct drm_device
*dev
= crtc
->base
.dev
;
12722 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12725 /* Clear any frame start delays used for debugging left by the BIOS */
12726 reg
= PIPECONF(crtc
->config
.cpu_transcoder
);
12727 I915_WRITE(reg
, I915_READ(reg
) & ~PIPECONF_FRAME_START_DELAY_MASK
);
12729 /* restore vblank interrupts to correct state */
12731 drm_vblank_on(dev
, crtc
->pipe
);
12733 drm_vblank_off(dev
, crtc
->pipe
);
12735 /* We need to sanitize the plane -> pipe mapping first because this will
12736 * disable the crtc (and hence change the state) if it is wrong. Note
12737 * that gen4+ has a fixed plane -> pipe mapping. */
12738 if (INTEL_INFO(dev
)->gen
< 4 && !intel_check_plane_mapping(crtc
)) {
12739 struct intel_connector
*connector
;
12742 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
12743 crtc
->base
.base
.id
);
12745 /* Pipe has the wrong plane attached and the plane is active.
12746 * Temporarily change the plane mapping and disable everything
12748 plane
= crtc
->plane
;
12749 crtc
->plane
= !plane
;
12750 crtc
->primary_enabled
= true;
12751 dev_priv
->display
.crtc_disable(&crtc
->base
);
12752 crtc
->plane
= plane
;
12754 /* ... and break all links. */
12755 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
12757 if (connector
->encoder
->base
.crtc
!= &crtc
->base
)
12760 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
12761 connector
->base
.encoder
= NULL
;
12763 /* multiple connectors may have the same encoder:
12764 * handle them and break crtc link separately */
12765 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
12767 if (connector
->encoder
->base
.crtc
== &crtc
->base
) {
12768 connector
->encoder
->base
.crtc
= NULL
;
12769 connector
->encoder
->connectors_active
= false;
12772 WARN_ON(crtc
->active
);
12773 crtc
->base
.enabled
= false;
12776 if (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
&&
12777 crtc
->pipe
== PIPE_A
&& !crtc
->active
) {
12778 /* BIOS forgot to enable pipe A, this mostly happens after
12779 * resume. Force-enable the pipe to fix this, the update_dpms
12780 * call below we restore the pipe to the right state, but leave
12781 * the required bits on. */
12782 intel_enable_pipe_a(dev
);
12785 /* Adjust the state of the output pipe according to whether we
12786 * have active connectors/encoders. */
12787 intel_crtc_update_dpms(&crtc
->base
);
12789 if (crtc
->active
!= crtc
->base
.enabled
) {
12790 struct intel_encoder
*encoder
;
12792 /* This can happen either due to bugs in the get_hw_state
12793 * functions or because the pipe is force-enabled due to the
12795 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
12796 crtc
->base
.base
.id
,
12797 crtc
->base
.enabled
? "enabled" : "disabled",
12798 crtc
->active
? "enabled" : "disabled");
12800 crtc
->base
.enabled
= crtc
->active
;
12802 /* Because we only establish the connector -> encoder ->
12803 * crtc links if something is active, this means the
12804 * crtc is now deactivated. Break the links. connector
12805 * -> encoder links are only establish when things are
12806 * actually up, hence no need to break them. */
12807 WARN_ON(crtc
->active
);
12809 for_each_encoder_on_crtc(dev
, &crtc
->base
, encoder
) {
12810 WARN_ON(encoder
->connectors_active
);
12811 encoder
->base
.crtc
= NULL
;
12815 if (crtc
->active
|| IS_VALLEYVIEW(dev
) || INTEL_INFO(dev
)->gen
< 5) {
12817 * We start out with underrun reporting disabled to avoid races.
12818 * For correct bookkeeping mark this on active crtcs.
12820 * Also on gmch platforms we dont have any hardware bits to
12821 * disable the underrun reporting. Which means we need to start
12822 * out with underrun reporting disabled also on inactive pipes,
12823 * since otherwise we'll complain about the garbage we read when
12824 * e.g. coming up after runtime pm.
12826 * No protection against concurrent access is required - at
12827 * worst a fifo underrun happens which also sets this to false.
12829 crtc
->cpu_fifo_underrun_disabled
= true;
12830 crtc
->pch_fifo_underrun_disabled
= true;
12832 update_scanline_offset(crtc
);
12836 static void intel_sanitize_encoder(struct intel_encoder
*encoder
)
12838 struct intel_connector
*connector
;
12839 struct drm_device
*dev
= encoder
->base
.dev
;
12841 /* We need to check both for a crtc link (meaning that the
12842 * encoder is active and trying to read from a pipe) and the
12843 * pipe itself being active. */
12844 bool has_active_crtc
= encoder
->base
.crtc
&&
12845 to_intel_crtc(encoder
->base
.crtc
)->active
;
12847 if (encoder
->connectors_active
&& !has_active_crtc
) {
12848 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
12849 encoder
->base
.base
.id
,
12850 encoder
->base
.name
);
12852 /* Connector is active, but has no active pipe. This is
12853 * fallout from our resume register restoring. Disable
12854 * the encoder manually again. */
12855 if (encoder
->base
.crtc
) {
12856 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
12857 encoder
->base
.base
.id
,
12858 encoder
->base
.name
);
12859 encoder
->disable(encoder
);
12860 if (encoder
->post_disable
)
12861 encoder
->post_disable(encoder
);
12863 encoder
->base
.crtc
= NULL
;
12864 encoder
->connectors_active
= false;
12866 /* Inconsistent output/port/pipe state happens presumably due to
12867 * a bug in one of the get_hw_state functions. Or someplace else
12868 * in our code, like the register restore mess on resume. Clamp
12869 * things to off as a safer default. */
12870 list_for_each_entry(connector
,
12871 &dev
->mode_config
.connector_list
,
12873 if (connector
->encoder
!= encoder
)
12875 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
12876 connector
->base
.encoder
= NULL
;
12879 /* Enabled encoders without active connectors will be fixed in
12880 * the crtc fixup. */
12883 void i915_redisable_vga_power_on(struct drm_device
*dev
)
12885 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12886 u32 vga_reg
= i915_vgacntrl_reg(dev
);
12888 if (!(I915_READ(vga_reg
) & VGA_DISP_DISABLE
)) {
12889 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
12890 i915_disable_vga(dev
);
12894 void i915_redisable_vga(struct drm_device
*dev
)
12896 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12898 /* This function can be called both from intel_modeset_setup_hw_state or
12899 * at a very early point in our resume sequence, where the power well
12900 * structures are not yet restored. Since this function is at a very
12901 * paranoid "someone might have enabled VGA while we were not looking"
12902 * level, just check if the power well is enabled instead of trying to
12903 * follow the "don't touch the power well if we don't need it" policy
12904 * the rest of the driver uses. */
12905 if (!intel_display_power_enabled(dev_priv
, POWER_DOMAIN_VGA
))
12908 i915_redisable_vga_power_on(dev
);
12911 static bool primary_get_hw_state(struct intel_crtc
*crtc
)
12913 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
12918 return I915_READ(DSPCNTR(crtc
->plane
)) & DISPLAY_PLANE_ENABLE
;
12921 static void intel_modeset_readout_hw_state(struct drm_device
*dev
)
12923 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12925 struct intel_crtc
*crtc
;
12926 struct intel_encoder
*encoder
;
12927 struct intel_connector
*connector
;
12930 for_each_intel_crtc(dev
, crtc
) {
12931 memset(&crtc
->config
, 0, sizeof(crtc
->config
));
12933 crtc
->config
.quirks
|= PIPE_CONFIG_QUIRK_INHERITED_MODE
;
12935 crtc
->active
= dev_priv
->display
.get_pipe_config(crtc
,
12938 crtc
->base
.enabled
= crtc
->active
;
12939 crtc
->primary_enabled
= primary_get_hw_state(crtc
);
12941 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
12942 crtc
->base
.base
.id
,
12943 crtc
->active
? "enabled" : "disabled");
12946 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
12947 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
12949 pll
->on
= pll
->get_hw_state(dev_priv
, pll
, &pll
->hw_state
);
12951 for_each_intel_crtc(dev
, crtc
) {
12952 if (crtc
->active
&& intel_crtc_to_shared_dpll(crtc
) == pll
)
12955 pll
->refcount
= pll
->active
;
12957 DRM_DEBUG_KMS("%s hw state readout: refcount %i, on %i\n",
12958 pll
->name
, pll
->refcount
, pll
->on
);
12961 intel_display_power_get(dev_priv
, POWER_DOMAIN_PLLS
);
12964 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
12968 if (encoder
->get_hw_state(encoder
, &pipe
)) {
12969 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
12970 encoder
->base
.crtc
= &crtc
->base
;
12971 encoder
->get_config(encoder
, &crtc
->config
);
12973 encoder
->base
.crtc
= NULL
;
12976 encoder
->connectors_active
= false;
12977 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n",
12978 encoder
->base
.base
.id
,
12979 encoder
->base
.name
,
12980 encoder
->base
.crtc
? "enabled" : "disabled",
12984 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
12986 if (connector
->get_hw_state(connector
)) {
12987 connector
->base
.dpms
= DRM_MODE_DPMS_ON
;
12988 connector
->encoder
->connectors_active
= true;
12989 connector
->base
.encoder
= &connector
->encoder
->base
;
12991 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
12992 connector
->base
.encoder
= NULL
;
12994 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
12995 connector
->base
.base
.id
,
12996 connector
->base
.name
,
12997 connector
->base
.encoder
? "enabled" : "disabled");
13001 /* Scan out the current hw modeset state, sanitizes it and maps it into the drm
13002 * and i915 state tracking structures. */
13003 void intel_modeset_setup_hw_state(struct drm_device
*dev
,
13004 bool force_restore
)
13006 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13008 struct intel_crtc
*crtc
;
13009 struct intel_encoder
*encoder
;
13012 intel_modeset_readout_hw_state(dev
);
13015 * Now that we have the config, copy it to each CRTC struct
13016 * Note that this could go away if we move to using crtc_config
13017 * checking everywhere.
13019 for_each_intel_crtc(dev
, crtc
) {
13020 if (crtc
->active
&& i915
.fastboot
) {
13021 intel_mode_from_pipe_config(&crtc
->base
.mode
, &crtc
->config
);
13022 DRM_DEBUG_KMS("[CRTC:%d] found active mode: ",
13023 crtc
->base
.base
.id
);
13024 drm_mode_debug_printmodeline(&crtc
->base
.mode
);
13028 /* HW state is read out, now we need to sanitize this mess. */
13029 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
13031 intel_sanitize_encoder(encoder
);
13034 for_each_pipe(pipe
) {
13035 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
13036 intel_sanitize_crtc(crtc
);
13037 intel_dump_pipe_config(crtc
, &crtc
->config
, "[setup_hw_state]");
13040 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
13041 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
13043 if (!pll
->on
|| pll
->active
)
13046 DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll
->name
);
13048 pll
->disable(dev_priv
, pll
);
13052 if (HAS_PCH_SPLIT(dev
))
13053 ilk_wm_get_hw_state(dev
);
13055 if (force_restore
) {
13056 i915_redisable_vga(dev
);
13059 * We need to use raw interfaces for restoring state to avoid
13060 * checking (bogus) intermediate states.
13062 for_each_pipe(pipe
) {
13063 struct drm_crtc
*crtc
=
13064 dev_priv
->pipe_to_crtc_mapping
[pipe
];
13066 __intel_set_mode(crtc
, &crtc
->mode
, crtc
->x
, crtc
->y
,
13067 crtc
->primary
->fb
);
13070 intel_modeset_update_staged_output_state(dev
);
13073 intel_modeset_check_state(dev
);
13076 void intel_modeset_gem_init(struct drm_device
*dev
)
13078 struct drm_crtc
*c
;
13079 struct drm_i915_gem_object
*obj
;
13081 mutex_lock(&dev
->struct_mutex
);
13082 intel_init_gt_powersave(dev
);
13083 mutex_unlock(&dev
->struct_mutex
);
13085 intel_modeset_init_hw(dev
);
13087 intel_setup_overlay(dev
);
13090 * Make sure any fbs we allocated at startup are properly
13091 * pinned & fenced. When we do the allocation it's too early
13094 mutex_lock(&dev
->struct_mutex
);
13095 for_each_crtc(dev
, c
) {
13096 obj
= intel_fb_obj(c
->primary
->fb
);
13100 if (intel_pin_and_fence_fb_obj(dev
, obj
, NULL
)) {
13101 DRM_ERROR("failed to pin boot fb on pipe %d\n",
13102 to_intel_crtc(c
)->pipe
);
13103 drm_framebuffer_unreference(c
->primary
->fb
);
13104 c
->primary
->fb
= NULL
;
13107 mutex_unlock(&dev
->struct_mutex
);
13110 void intel_connector_unregister(struct intel_connector
*intel_connector
)
13112 struct drm_connector
*connector
= &intel_connector
->base
;
13114 intel_panel_destroy_backlight(connector
);
13115 drm_connector_unregister(connector
);
13118 void intel_modeset_cleanup(struct drm_device
*dev
)
13120 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13121 struct drm_connector
*connector
;
13124 * Interrupts and polling as the first thing to avoid creating havoc.
13125 * Too much stuff here (turning of rps, connectors, ...) would
13126 * experience fancy races otherwise.
13128 drm_irq_uninstall(dev
);
13129 cancel_work_sync(&dev_priv
->hotplug_work
);
13130 dev_priv
->pm
._irqs_disabled
= true;
13133 * Due to the hpd irq storm handling the hotplug work can re-arm the
13134 * poll handlers. Hence disable polling after hpd handling is shut down.
13136 drm_kms_helper_poll_fini(dev
);
13138 mutex_lock(&dev
->struct_mutex
);
13140 intel_unregister_dsm_handler();
13142 intel_disable_fbc(dev
);
13144 intel_disable_gt_powersave(dev
);
13146 ironlake_teardown_rc6(dev
);
13148 mutex_unlock(&dev
->struct_mutex
);
13150 /* flush any delayed tasks or pending work */
13151 flush_scheduled_work();
13153 /* destroy the backlight and sysfs files before encoders/connectors */
13154 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
13155 struct intel_connector
*intel_connector
;
13157 intel_connector
= to_intel_connector(connector
);
13158 intel_connector
->unregister(intel_connector
);
13161 drm_mode_config_cleanup(dev
);
13163 intel_cleanup_overlay(dev
);
13165 mutex_lock(&dev
->struct_mutex
);
13166 intel_cleanup_gt_powersave(dev
);
13167 mutex_unlock(&dev
->struct_mutex
);
13171 * Return which encoder is currently attached for connector.
13173 struct drm_encoder
*intel_best_encoder(struct drm_connector
*connector
)
13175 return &intel_attached_encoder(connector
)->base
;
13178 void intel_connector_attach_encoder(struct intel_connector
*connector
,
13179 struct intel_encoder
*encoder
)
13181 connector
->encoder
= encoder
;
13182 drm_mode_connector_attach_encoder(&connector
->base
,
13187 * set vga decode state - true == enable VGA decode
13189 int intel_modeset_vga_set_state(struct drm_device
*dev
, bool state
)
13191 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13192 unsigned reg
= INTEL_INFO(dev
)->gen
>= 6 ? SNB_GMCH_CTRL
: INTEL_GMCH_CTRL
;
13195 if (pci_read_config_word(dev_priv
->bridge_dev
, reg
, &gmch_ctrl
)) {
13196 DRM_ERROR("failed to read control word\n");
13200 if (!!(gmch_ctrl
& INTEL_GMCH_VGA_DISABLE
) == !state
)
13204 gmch_ctrl
&= ~INTEL_GMCH_VGA_DISABLE
;
13206 gmch_ctrl
|= INTEL_GMCH_VGA_DISABLE
;
13208 if (pci_write_config_word(dev_priv
->bridge_dev
, reg
, gmch_ctrl
)) {
13209 DRM_ERROR("failed to write control word\n");
13216 struct intel_display_error_state
{
13218 u32 power_well_driver
;
13220 int num_transcoders
;
13222 struct intel_cursor_error_state
{
13227 } cursor
[I915_MAX_PIPES
];
13229 struct intel_pipe_error_state
{
13230 bool power_domain_on
;
13233 } pipe
[I915_MAX_PIPES
];
13235 struct intel_plane_error_state
{
13243 } plane
[I915_MAX_PIPES
];
13245 struct intel_transcoder_error_state
{
13246 bool power_domain_on
;
13247 enum transcoder cpu_transcoder
;
13260 struct intel_display_error_state
*
13261 intel_display_capture_error_state(struct drm_device
*dev
)
13263 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13264 struct intel_display_error_state
*error
;
13265 int transcoders
[] = {
13273 if (INTEL_INFO(dev
)->num_pipes
== 0)
13276 error
= kzalloc(sizeof(*error
), GFP_ATOMIC
);
13280 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
13281 error
->power_well_driver
= I915_READ(HSW_PWR_WELL_DRIVER
);
13284 error
->pipe
[i
].power_domain_on
=
13285 intel_display_power_enabled_unlocked(dev_priv
,
13286 POWER_DOMAIN_PIPE(i
));
13287 if (!error
->pipe
[i
].power_domain_on
)
13290 error
->cursor
[i
].control
= I915_READ(CURCNTR(i
));
13291 error
->cursor
[i
].position
= I915_READ(CURPOS(i
));
13292 error
->cursor
[i
].base
= I915_READ(CURBASE(i
));
13294 error
->plane
[i
].control
= I915_READ(DSPCNTR(i
));
13295 error
->plane
[i
].stride
= I915_READ(DSPSTRIDE(i
));
13296 if (INTEL_INFO(dev
)->gen
<= 3) {
13297 error
->plane
[i
].size
= I915_READ(DSPSIZE(i
));
13298 error
->plane
[i
].pos
= I915_READ(DSPPOS(i
));
13300 if (INTEL_INFO(dev
)->gen
<= 7 && !IS_HASWELL(dev
))
13301 error
->plane
[i
].addr
= I915_READ(DSPADDR(i
));
13302 if (INTEL_INFO(dev
)->gen
>= 4) {
13303 error
->plane
[i
].surface
= I915_READ(DSPSURF(i
));
13304 error
->plane
[i
].tile_offset
= I915_READ(DSPTILEOFF(i
));
13307 error
->pipe
[i
].source
= I915_READ(PIPESRC(i
));
13309 if (HAS_GMCH_DISPLAY(dev
))
13310 error
->pipe
[i
].stat
= I915_READ(PIPESTAT(i
));
13313 error
->num_transcoders
= INTEL_INFO(dev
)->num_pipes
;
13314 if (HAS_DDI(dev_priv
->dev
))
13315 error
->num_transcoders
++; /* Account for eDP. */
13317 for (i
= 0; i
< error
->num_transcoders
; i
++) {
13318 enum transcoder cpu_transcoder
= transcoders
[i
];
13320 error
->transcoder
[i
].power_domain_on
=
13321 intel_display_power_enabled_unlocked(dev_priv
,
13322 POWER_DOMAIN_TRANSCODER(cpu_transcoder
));
13323 if (!error
->transcoder
[i
].power_domain_on
)
13326 error
->transcoder
[i
].cpu_transcoder
= cpu_transcoder
;
13328 error
->transcoder
[i
].conf
= I915_READ(PIPECONF(cpu_transcoder
));
13329 error
->transcoder
[i
].htotal
= I915_READ(HTOTAL(cpu_transcoder
));
13330 error
->transcoder
[i
].hblank
= I915_READ(HBLANK(cpu_transcoder
));
13331 error
->transcoder
[i
].hsync
= I915_READ(HSYNC(cpu_transcoder
));
13332 error
->transcoder
[i
].vtotal
= I915_READ(VTOTAL(cpu_transcoder
));
13333 error
->transcoder
[i
].vblank
= I915_READ(VBLANK(cpu_transcoder
));
13334 error
->transcoder
[i
].vsync
= I915_READ(VSYNC(cpu_transcoder
));
13340 #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
13343 intel_display_print_error_state(struct drm_i915_error_state_buf
*m
,
13344 struct drm_device
*dev
,
13345 struct intel_display_error_state
*error
)
13352 err_printf(m
, "Num Pipes: %d\n", INTEL_INFO(dev
)->num_pipes
);
13353 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
13354 err_printf(m
, "PWR_WELL_CTL2: %08x\n",
13355 error
->power_well_driver
);
13357 err_printf(m
, "Pipe [%d]:\n", i
);
13358 err_printf(m
, " Power: %s\n",
13359 error
->pipe
[i
].power_domain_on
? "on" : "off");
13360 err_printf(m
, " SRC: %08x\n", error
->pipe
[i
].source
);
13361 err_printf(m
, " STAT: %08x\n", error
->pipe
[i
].stat
);
13363 err_printf(m
, "Plane [%d]:\n", i
);
13364 err_printf(m
, " CNTR: %08x\n", error
->plane
[i
].control
);
13365 err_printf(m
, " STRIDE: %08x\n", error
->plane
[i
].stride
);
13366 if (INTEL_INFO(dev
)->gen
<= 3) {
13367 err_printf(m
, " SIZE: %08x\n", error
->plane
[i
].size
);
13368 err_printf(m
, " POS: %08x\n", error
->plane
[i
].pos
);
13370 if (INTEL_INFO(dev
)->gen
<= 7 && !IS_HASWELL(dev
))
13371 err_printf(m
, " ADDR: %08x\n", error
->plane
[i
].addr
);
13372 if (INTEL_INFO(dev
)->gen
>= 4) {
13373 err_printf(m
, " SURF: %08x\n", error
->plane
[i
].surface
);
13374 err_printf(m
, " TILEOFF: %08x\n", error
->plane
[i
].tile_offset
);
13377 err_printf(m
, "Cursor [%d]:\n", i
);
13378 err_printf(m
, " CNTR: %08x\n", error
->cursor
[i
].control
);
13379 err_printf(m
, " POS: %08x\n", error
->cursor
[i
].position
);
13380 err_printf(m
, " BASE: %08x\n", error
->cursor
[i
].base
);
13383 for (i
= 0; i
< error
->num_transcoders
; i
++) {
13384 err_printf(m
, "CPU transcoder: %c\n",
13385 transcoder_name(error
->transcoder
[i
].cpu_transcoder
));
13386 err_printf(m
, " Power: %s\n",
13387 error
->transcoder
[i
].power_domain_on
? "on" : "off");
13388 err_printf(m
, " CONF: %08x\n", error
->transcoder
[i
].conf
);
13389 err_printf(m
, " HTOTAL: %08x\n", error
->transcoder
[i
].htotal
);
13390 err_printf(m
, " HBLANK: %08x\n", error
->transcoder
[i
].hblank
);
13391 err_printf(m
, " HSYNC: %08x\n", error
->transcoder
[i
].hsync
);
13392 err_printf(m
, " VTOTAL: %08x\n", error
->transcoder
[i
].vtotal
);
13393 err_printf(m
, " VBLANK: %08x\n", error
->transcoder
[i
].vblank
);
13394 err_printf(m
, " VSYNC: %08x\n", error
->transcoder
[i
].vsync
);