2 * Copyright © 2006-2007 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
24 * Eric Anholt <eric@anholt.net>
27 #include <linux/dmi.h>
28 #include <linux/module.h>
29 #include <linux/input.h>
30 #include <linux/i2c.h>
31 #include <linux/kernel.h>
32 #include <linux/slab.h>
33 #include <linux/vgaarb.h>
34 #include <drm/drm_edid.h>
36 #include "intel_drv.h"
37 #include <drm/i915_drm.h>
39 #include "i915_trace.h"
40 #include <drm/drm_dp_helper.h>
41 #include <drm/drm_crtc_helper.h>
42 #include <drm/drm_plane_helper.h>
43 #include <drm/drm_rect.h>
44 #include <linux/dma_remapping.h>
46 /* Primary plane formats supported by all gen */
47 #define COMMON_PRIMARY_FORMATS \
50 DRM_FORMAT_XRGB8888, \
53 /* Primary plane formats for gen <= 3 */
54 static const uint32_t intel_primary_formats_gen2
[] = {
55 COMMON_PRIMARY_FORMATS
,
60 /* Primary plane formats for gen >= 4 */
61 static const uint32_t intel_primary_formats_gen4
[] = {
62 COMMON_PRIMARY_FORMATS
, \
65 DRM_FORMAT_XRGB2101010
,
66 DRM_FORMAT_ARGB2101010
,
67 DRM_FORMAT_XBGR2101010
,
68 DRM_FORMAT_ABGR2101010
,
72 static const uint32_t intel_cursor_formats
[] = {
76 #define DIV_ROUND_CLOSEST_ULL(ll, d) \
77 ({ unsigned long long _tmp = (ll)+(d)/2; do_div(_tmp, d); _tmp; })
79 static void intel_increase_pllclock(struct drm_device
*dev
,
81 static void intel_crtc_update_cursor(struct drm_crtc
*crtc
, bool on
);
83 static void i9xx_crtc_clock_get(struct intel_crtc
*crtc
,
84 struct intel_crtc_config
*pipe_config
);
85 static void ironlake_pch_clock_get(struct intel_crtc
*crtc
,
86 struct intel_crtc_config
*pipe_config
);
88 static int intel_set_mode(struct drm_crtc
*crtc
, struct drm_display_mode
*mode
,
89 int x
, int y
, struct drm_framebuffer
*old_fb
);
90 static int intel_framebuffer_init(struct drm_device
*dev
,
91 struct intel_framebuffer
*ifb
,
92 struct drm_mode_fb_cmd2
*mode_cmd
,
93 struct drm_i915_gem_object
*obj
);
94 static void i9xx_set_pipeconf(struct intel_crtc
*intel_crtc
);
95 static void intel_set_pipe_timings(struct intel_crtc
*intel_crtc
);
96 static void intel_cpu_transcoder_set_m_n(struct intel_crtc
*crtc
,
97 struct intel_link_m_n
*m_n
,
98 struct intel_link_m_n
*m2_n2
);
99 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
);
100 static void haswell_set_pipeconf(struct drm_crtc
*crtc
);
101 static void intel_set_pipe_csc(struct drm_crtc
*crtc
);
102 static void vlv_prepare_pll(struct intel_crtc
*crtc
);
103 static void chv_prepare_pll(struct intel_crtc
*crtc
);
105 static struct intel_encoder
*intel_find_encoder(struct intel_connector
*connector
, int pipe
)
107 if (!connector
->mst_port
)
108 return connector
->encoder
;
110 return &connector
->mst_port
->mst_encoders
[pipe
]->base
;
119 int p2_slow
, p2_fast
;
122 typedef struct intel_limit intel_limit_t
;
124 intel_range_t dot
, vco
, n
, m
, m1
, m2
, p
, p1
;
129 intel_pch_rawclk(struct drm_device
*dev
)
131 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
133 WARN_ON(!HAS_PCH_SPLIT(dev
));
135 return I915_READ(PCH_RAWCLK_FREQ
) & RAWCLK_FREQ_MASK
;
138 static inline u32
/* units of 100MHz */
139 intel_fdi_link_freq(struct drm_device
*dev
)
142 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
143 return (I915_READ(FDI_PLL_BIOS_0
) & FDI_PLL_FB_CLOCK_MASK
) + 2;
148 static const intel_limit_t intel_limits_i8xx_dac
= {
149 .dot
= { .min
= 25000, .max
= 350000 },
150 .vco
= { .min
= 908000, .max
= 1512000 },
151 .n
= { .min
= 2, .max
= 16 },
152 .m
= { .min
= 96, .max
= 140 },
153 .m1
= { .min
= 18, .max
= 26 },
154 .m2
= { .min
= 6, .max
= 16 },
155 .p
= { .min
= 4, .max
= 128 },
156 .p1
= { .min
= 2, .max
= 33 },
157 .p2
= { .dot_limit
= 165000,
158 .p2_slow
= 4, .p2_fast
= 2 },
161 static const intel_limit_t intel_limits_i8xx_dvo
= {
162 .dot
= { .min
= 25000, .max
= 350000 },
163 .vco
= { .min
= 908000, .max
= 1512000 },
164 .n
= { .min
= 2, .max
= 16 },
165 .m
= { .min
= 96, .max
= 140 },
166 .m1
= { .min
= 18, .max
= 26 },
167 .m2
= { .min
= 6, .max
= 16 },
168 .p
= { .min
= 4, .max
= 128 },
169 .p1
= { .min
= 2, .max
= 33 },
170 .p2
= { .dot_limit
= 165000,
171 .p2_slow
= 4, .p2_fast
= 4 },
174 static const intel_limit_t intel_limits_i8xx_lvds
= {
175 .dot
= { .min
= 25000, .max
= 350000 },
176 .vco
= { .min
= 908000, .max
= 1512000 },
177 .n
= { .min
= 2, .max
= 16 },
178 .m
= { .min
= 96, .max
= 140 },
179 .m1
= { .min
= 18, .max
= 26 },
180 .m2
= { .min
= 6, .max
= 16 },
181 .p
= { .min
= 4, .max
= 128 },
182 .p1
= { .min
= 1, .max
= 6 },
183 .p2
= { .dot_limit
= 165000,
184 .p2_slow
= 14, .p2_fast
= 7 },
187 static const intel_limit_t intel_limits_i9xx_sdvo
= {
188 .dot
= { .min
= 20000, .max
= 400000 },
189 .vco
= { .min
= 1400000, .max
= 2800000 },
190 .n
= { .min
= 1, .max
= 6 },
191 .m
= { .min
= 70, .max
= 120 },
192 .m1
= { .min
= 8, .max
= 18 },
193 .m2
= { .min
= 3, .max
= 7 },
194 .p
= { .min
= 5, .max
= 80 },
195 .p1
= { .min
= 1, .max
= 8 },
196 .p2
= { .dot_limit
= 200000,
197 .p2_slow
= 10, .p2_fast
= 5 },
200 static const intel_limit_t intel_limits_i9xx_lvds
= {
201 .dot
= { .min
= 20000, .max
= 400000 },
202 .vco
= { .min
= 1400000, .max
= 2800000 },
203 .n
= { .min
= 1, .max
= 6 },
204 .m
= { .min
= 70, .max
= 120 },
205 .m1
= { .min
= 8, .max
= 18 },
206 .m2
= { .min
= 3, .max
= 7 },
207 .p
= { .min
= 7, .max
= 98 },
208 .p1
= { .min
= 1, .max
= 8 },
209 .p2
= { .dot_limit
= 112000,
210 .p2_slow
= 14, .p2_fast
= 7 },
214 static const intel_limit_t intel_limits_g4x_sdvo
= {
215 .dot
= { .min
= 25000, .max
= 270000 },
216 .vco
= { .min
= 1750000, .max
= 3500000},
217 .n
= { .min
= 1, .max
= 4 },
218 .m
= { .min
= 104, .max
= 138 },
219 .m1
= { .min
= 17, .max
= 23 },
220 .m2
= { .min
= 5, .max
= 11 },
221 .p
= { .min
= 10, .max
= 30 },
222 .p1
= { .min
= 1, .max
= 3},
223 .p2
= { .dot_limit
= 270000,
229 static const intel_limit_t intel_limits_g4x_hdmi
= {
230 .dot
= { .min
= 22000, .max
= 400000 },
231 .vco
= { .min
= 1750000, .max
= 3500000},
232 .n
= { .min
= 1, .max
= 4 },
233 .m
= { .min
= 104, .max
= 138 },
234 .m1
= { .min
= 16, .max
= 23 },
235 .m2
= { .min
= 5, .max
= 11 },
236 .p
= { .min
= 5, .max
= 80 },
237 .p1
= { .min
= 1, .max
= 8},
238 .p2
= { .dot_limit
= 165000,
239 .p2_slow
= 10, .p2_fast
= 5 },
242 static const intel_limit_t intel_limits_g4x_single_channel_lvds
= {
243 .dot
= { .min
= 20000, .max
= 115000 },
244 .vco
= { .min
= 1750000, .max
= 3500000 },
245 .n
= { .min
= 1, .max
= 3 },
246 .m
= { .min
= 104, .max
= 138 },
247 .m1
= { .min
= 17, .max
= 23 },
248 .m2
= { .min
= 5, .max
= 11 },
249 .p
= { .min
= 28, .max
= 112 },
250 .p1
= { .min
= 2, .max
= 8 },
251 .p2
= { .dot_limit
= 0,
252 .p2_slow
= 14, .p2_fast
= 14
256 static const intel_limit_t intel_limits_g4x_dual_channel_lvds
= {
257 .dot
= { .min
= 80000, .max
= 224000 },
258 .vco
= { .min
= 1750000, .max
= 3500000 },
259 .n
= { .min
= 1, .max
= 3 },
260 .m
= { .min
= 104, .max
= 138 },
261 .m1
= { .min
= 17, .max
= 23 },
262 .m2
= { .min
= 5, .max
= 11 },
263 .p
= { .min
= 14, .max
= 42 },
264 .p1
= { .min
= 2, .max
= 6 },
265 .p2
= { .dot_limit
= 0,
266 .p2_slow
= 7, .p2_fast
= 7
270 static const intel_limit_t intel_limits_pineview_sdvo
= {
271 .dot
= { .min
= 20000, .max
= 400000},
272 .vco
= { .min
= 1700000, .max
= 3500000 },
273 /* Pineview's Ncounter is a ring counter */
274 .n
= { .min
= 3, .max
= 6 },
275 .m
= { .min
= 2, .max
= 256 },
276 /* Pineview only has one combined m divider, which we treat as m2. */
277 .m1
= { .min
= 0, .max
= 0 },
278 .m2
= { .min
= 0, .max
= 254 },
279 .p
= { .min
= 5, .max
= 80 },
280 .p1
= { .min
= 1, .max
= 8 },
281 .p2
= { .dot_limit
= 200000,
282 .p2_slow
= 10, .p2_fast
= 5 },
285 static const intel_limit_t intel_limits_pineview_lvds
= {
286 .dot
= { .min
= 20000, .max
= 400000 },
287 .vco
= { .min
= 1700000, .max
= 3500000 },
288 .n
= { .min
= 3, .max
= 6 },
289 .m
= { .min
= 2, .max
= 256 },
290 .m1
= { .min
= 0, .max
= 0 },
291 .m2
= { .min
= 0, .max
= 254 },
292 .p
= { .min
= 7, .max
= 112 },
293 .p1
= { .min
= 1, .max
= 8 },
294 .p2
= { .dot_limit
= 112000,
295 .p2_slow
= 14, .p2_fast
= 14 },
298 /* Ironlake / Sandybridge
300 * We calculate clock using (register_value + 2) for N/M1/M2, so here
301 * the range value for them is (actual_value - 2).
303 static const intel_limit_t intel_limits_ironlake_dac
= {
304 .dot
= { .min
= 25000, .max
= 350000 },
305 .vco
= { .min
= 1760000, .max
= 3510000 },
306 .n
= { .min
= 1, .max
= 5 },
307 .m
= { .min
= 79, .max
= 127 },
308 .m1
= { .min
= 12, .max
= 22 },
309 .m2
= { .min
= 5, .max
= 9 },
310 .p
= { .min
= 5, .max
= 80 },
311 .p1
= { .min
= 1, .max
= 8 },
312 .p2
= { .dot_limit
= 225000,
313 .p2_slow
= 10, .p2_fast
= 5 },
316 static const intel_limit_t intel_limits_ironlake_single_lvds
= {
317 .dot
= { .min
= 25000, .max
= 350000 },
318 .vco
= { .min
= 1760000, .max
= 3510000 },
319 .n
= { .min
= 1, .max
= 3 },
320 .m
= { .min
= 79, .max
= 118 },
321 .m1
= { .min
= 12, .max
= 22 },
322 .m2
= { .min
= 5, .max
= 9 },
323 .p
= { .min
= 28, .max
= 112 },
324 .p1
= { .min
= 2, .max
= 8 },
325 .p2
= { .dot_limit
= 225000,
326 .p2_slow
= 14, .p2_fast
= 14 },
329 static const intel_limit_t intel_limits_ironlake_dual_lvds
= {
330 .dot
= { .min
= 25000, .max
= 350000 },
331 .vco
= { .min
= 1760000, .max
= 3510000 },
332 .n
= { .min
= 1, .max
= 3 },
333 .m
= { .min
= 79, .max
= 127 },
334 .m1
= { .min
= 12, .max
= 22 },
335 .m2
= { .min
= 5, .max
= 9 },
336 .p
= { .min
= 14, .max
= 56 },
337 .p1
= { .min
= 2, .max
= 8 },
338 .p2
= { .dot_limit
= 225000,
339 .p2_slow
= 7, .p2_fast
= 7 },
342 /* LVDS 100mhz refclk limits. */
343 static const intel_limit_t intel_limits_ironlake_single_lvds_100m
= {
344 .dot
= { .min
= 25000, .max
= 350000 },
345 .vco
= { .min
= 1760000, .max
= 3510000 },
346 .n
= { .min
= 1, .max
= 2 },
347 .m
= { .min
= 79, .max
= 126 },
348 .m1
= { .min
= 12, .max
= 22 },
349 .m2
= { .min
= 5, .max
= 9 },
350 .p
= { .min
= 28, .max
= 112 },
351 .p1
= { .min
= 2, .max
= 8 },
352 .p2
= { .dot_limit
= 225000,
353 .p2_slow
= 14, .p2_fast
= 14 },
356 static const intel_limit_t intel_limits_ironlake_dual_lvds_100m
= {
357 .dot
= { .min
= 25000, .max
= 350000 },
358 .vco
= { .min
= 1760000, .max
= 3510000 },
359 .n
= { .min
= 1, .max
= 3 },
360 .m
= { .min
= 79, .max
= 126 },
361 .m1
= { .min
= 12, .max
= 22 },
362 .m2
= { .min
= 5, .max
= 9 },
363 .p
= { .min
= 14, .max
= 42 },
364 .p1
= { .min
= 2, .max
= 6 },
365 .p2
= { .dot_limit
= 225000,
366 .p2_slow
= 7, .p2_fast
= 7 },
369 static const intel_limit_t intel_limits_vlv
= {
371 * These are the data rate limits (measured in fast clocks)
372 * since those are the strictest limits we have. The fast
373 * clock and actual rate limits are more relaxed, so checking
374 * them would make no difference.
376 .dot
= { .min
= 25000 * 5, .max
= 270000 * 5 },
377 .vco
= { .min
= 4000000, .max
= 6000000 },
378 .n
= { .min
= 1, .max
= 7 },
379 .m1
= { .min
= 2, .max
= 3 },
380 .m2
= { .min
= 11, .max
= 156 },
381 .p1
= { .min
= 2, .max
= 3 },
382 .p2
= { .p2_slow
= 2, .p2_fast
= 20 }, /* slow=min, fast=max */
385 static const intel_limit_t intel_limits_chv
= {
387 * These are the data rate limits (measured in fast clocks)
388 * since those are the strictest limits we have. The fast
389 * clock and actual rate limits are more relaxed, so checking
390 * them would make no difference.
392 .dot
= { .min
= 25000 * 5, .max
= 540000 * 5},
393 .vco
= { .min
= 4860000, .max
= 6700000 },
394 .n
= { .min
= 1, .max
= 1 },
395 .m1
= { .min
= 2, .max
= 2 },
396 .m2
= { .min
= 24 << 22, .max
= 175 << 22 },
397 .p1
= { .min
= 2, .max
= 4 },
398 .p2
= { .p2_slow
= 1, .p2_fast
= 14 },
401 static void vlv_clock(int refclk
, intel_clock_t
*clock
)
403 clock
->m
= clock
->m1
* clock
->m2
;
404 clock
->p
= clock
->p1
* clock
->p2
;
405 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
407 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
);
408 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
412 * Returns whether any output on the specified pipe is of the specified type
414 static bool intel_pipe_has_type(struct drm_crtc
*crtc
, int type
)
416 struct drm_device
*dev
= crtc
->dev
;
417 struct intel_encoder
*encoder
;
419 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
420 if (encoder
->type
== type
)
426 static const intel_limit_t
*intel_ironlake_limit(struct drm_crtc
*crtc
,
429 struct drm_device
*dev
= crtc
->dev
;
430 const intel_limit_t
*limit
;
432 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
433 if (intel_is_dual_link_lvds(dev
)) {
434 if (refclk
== 100000)
435 limit
= &intel_limits_ironlake_dual_lvds_100m
;
437 limit
= &intel_limits_ironlake_dual_lvds
;
439 if (refclk
== 100000)
440 limit
= &intel_limits_ironlake_single_lvds_100m
;
442 limit
= &intel_limits_ironlake_single_lvds
;
445 limit
= &intel_limits_ironlake_dac
;
450 static const intel_limit_t
*intel_g4x_limit(struct drm_crtc
*crtc
)
452 struct drm_device
*dev
= crtc
->dev
;
453 const intel_limit_t
*limit
;
455 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
456 if (intel_is_dual_link_lvds(dev
))
457 limit
= &intel_limits_g4x_dual_channel_lvds
;
459 limit
= &intel_limits_g4x_single_channel_lvds
;
460 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
) ||
461 intel_pipe_has_type(crtc
, INTEL_OUTPUT_ANALOG
)) {
462 limit
= &intel_limits_g4x_hdmi
;
463 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_SDVO
)) {
464 limit
= &intel_limits_g4x_sdvo
;
465 } else /* The option is for other outputs */
466 limit
= &intel_limits_i9xx_sdvo
;
471 static const intel_limit_t
*intel_limit(struct drm_crtc
*crtc
, int refclk
)
473 struct drm_device
*dev
= crtc
->dev
;
474 const intel_limit_t
*limit
;
476 if (HAS_PCH_SPLIT(dev
))
477 limit
= intel_ironlake_limit(crtc
, refclk
);
478 else if (IS_G4X(dev
)) {
479 limit
= intel_g4x_limit(crtc
);
480 } else if (IS_PINEVIEW(dev
)) {
481 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
482 limit
= &intel_limits_pineview_lvds
;
484 limit
= &intel_limits_pineview_sdvo
;
485 } else if (IS_CHERRYVIEW(dev
)) {
486 limit
= &intel_limits_chv
;
487 } else if (IS_VALLEYVIEW(dev
)) {
488 limit
= &intel_limits_vlv
;
489 } else if (!IS_GEN2(dev
)) {
490 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
491 limit
= &intel_limits_i9xx_lvds
;
493 limit
= &intel_limits_i9xx_sdvo
;
495 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
496 limit
= &intel_limits_i8xx_lvds
;
497 else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DVO
))
498 limit
= &intel_limits_i8xx_dvo
;
500 limit
= &intel_limits_i8xx_dac
;
505 /* m1 is reserved as 0 in Pineview, n is a ring counter */
506 static void pineview_clock(int refclk
, intel_clock_t
*clock
)
508 clock
->m
= clock
->m2
+ 2;
509 clock
->p
= clock
->p1
* clock
->p2
;
510 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
512 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
);
513 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
516 static uint32_t i9xx_dpll_compute_m(struct dpll
*dpll
)
518 return 5 * (dpll
->m1
+ 2) + (dpll
->m2
+ 2);
521 static void i9xx_clock(int refclk
, intel_clock_t
*clock
)
523 clock
->m
= i9xx_dpll_compute_m(clock
);
524 clock
->p
= clock
->p1
* clock
->p2
;
525 if (WARN_ON(clock
->n
+ 2 == 0 || clock
->p
== 0))
527 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
+ 2);
528 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
531 static void chv_clock(int refclk
, intel_clock_t
*clock
)
533 clock
->m
= clock
->m1
* clock
->m2
;
534 clock
->p
= clock
->p1
* clock
->p2
;
535 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
537 clock
->vco
= DIV_ROUND_CLOSEST_ULL((uint64_t)refclk
* clock
->m
,
539 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
542 #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
544 * Returns whether the given set of divisors are valid for a given refclk with
545 * the given connectors.
548 static bool intel_PLL_is_valid(struct drm_device
*dev
,
549 const intel_limit_t
*limit
,
550 const intel_clock_t
*clock
)
552 if (clock
->n
< limit
->n
.min
|| limit
->n
.max
< clock
->n
)
553 INTELPllInvalid("n out of range\n");
554 if (clock
->p1
< limit
->p1
.min
|| limit
->p1
.max
< clock
->p1
)
555 INTELPllInvalid("p1 out of range\n");
556 if (clock
->m2
< limit
->m2
.min
|| limit
->m2
.max
< clock
->m2
)
557 INTELPllInvalid("m2 out of range\n");
558 if (clock
->m1
< limit
->m1
.min
|| limit
->m1
.max
< clock
->m1
)
559 INTELPllInvalid("m1 out of range\n");
561 if (!IS_PINEVIEW(dev
) && !IS_VALLEYVIEW(dev
))
562 if (clock
->m1
<= clock
->m2
)
563 INTELPllInvalid("m1 <= m2\n");
565 if (!IS_VALLEYVIEW(dev
)) {
566 if (clock
->p
< limit
->p
.min
|| limit
->p
.max
< clock
->p
)
567 INTELPllInvalid("p out of range\n");
568 if (clock
->m
< limit
->m
.min
|| limit
->m
.max
< clock
->m
)
569 INTELPllInvalid("m out of range\n");
572 if (clock
->vco
< limit
->vco
.min
|| limit
->vco
.max
< clock
->vco
)
573 INTELPllInvalid("vco out of range\n");
574 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
575 * connector, etc., rather than just a single range.
577 if (clock
->dot
< limit
->dot
.min
|| limit
->dot
.max
< clock
->dot
)
578 INTELPllInvalid("dot out of range\n");
584 i9xx_find_best_dpll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
585 int target
, int refclk
, intel_clock_t
*match_clock
,
586 intel_clock_t
*best_clock
)
588 struct drm_device
*dev
= crtc
->dev
;
592 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
594 * For LVDS just rely on its current settings for dual-channel.
595 * We haven't figured out how to reliably set up different
596 * single/dual channel state, if we even can.
598 if (intel_is_dual_link_lvds(dev
))
599 clock
.p2
= limit
->p2
.p2_fast
;
601 clock
.p2
= limit
->p2
.p2_slow
;
603 if (target
< limit
->p2
.dot_limit
)
604 clock
.p2
= limit
->p2
.p2_slow
;
606 clock
.p2
= limit
->p2
.p2_fast
;
609 memset(best_clock
, 0, sizeof(*best_clock
));
611 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
613 for (clock
.m2
= limit
->m2
.min
;
614 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
615 if (clock
.m2
>= clock
.m1
)
617 for (clock
.n
= limit
->n
.min
;
618 clock
.n
<= limit
->n
.max
; clock
.n
++) {
619 for (clock
.p1
= limit
->p1
.min
;
620 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
623 i9xx_clock(refclk
, &clock
);
624 if (!intel_PLL_is_valid(dev
, limit
,
628 clock
.p
!= match_clock
->p
)
631 this_err
= abs(clock
.dot
- target
);
632 if (this_err
< err
) {
641 return (err
!= target
);
645 pnv_find_best_dpll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
646 int target
, int refclk
, intel_clock_t
*match_clock
,
647 intel_clock_t
*best_clock
)
649 struct drm_device
*dev
= crtc
->dev
;
653 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
655 * For LVDS just rely on its current settings for dual-channel.
656 * We haven't figured out how to reliably set up different
657 * single/dual channel state, if we even can.
659 if (intel_is_dual_link_lvds(dev
))
660 clock
.p2
= limit
->p2
.p2_fast
;
662 clock
.p2
= limit
->p2
.p2_slow
;
664 if (target
< limit
->p2
.dot_limit
)
665 clock
.p2
= limit
->p2
.p2_slow
;
667 clock
.p2
= limit
->p2
.p2_fast
;
670 memset(best_clock
, 0, sizeof(*best_clock
));
672 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
674 for (clock
.m2
= limit
->m2
.min
;
675 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
676 for (clock
.n
= limit
->n
.min
;
677 clock
.n
<= limit
->n
.max
; clock
.n
++) {
678 for (clock
.p1
= limit
->p1
.min
;
679 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
682 pineview_clock(refclk
, &clock
);
683 if (!intel_PLL_is_valid(dev
, limit
,
687 clock
.p
!= match_clock
->p
)
690 this_err
= abs(clock
.dot
- target
);
691 if (this_err
< err
) {
700 return (err
!= target
);
704 g4x_find_best_dpll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
705 int target
, int refclk
, intel_clock_t
*match_clock
,
706 intel_clock_t
*best_clock
)
708 struct drm_device
*dev
= crtc
->dev
;
712 /* approximately equals target * 0.00585 */
713 int err_most
= (target
>> 8) + (target
>> 9);
716 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
717 if (intel_is_dual_link_lvds(dev
))
718 clock
.p2
= limit
->p2
.p2_fast
;
720 clock
.p2
= limit
->p2
.p2_slow
;
722 if (target
< limit
->p2
.dot_limit
)
723 clock
.p2
= limit
->p2
.p2_slow
;
725 clock
.p2
= limit
->p2
.p2_fast
;
728 memset(best_clock
, 0, sizeof(*best_clock
));
729 max_n
= limit
->n
.max
;
730 /* based on hardware requirement, prefer smaller n to precision */
731 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
732 /* based on hardware requirement, prefere larger m1,m2 */
733 for (clock
.m1
= limit
->m1
.max
;
734 clock
.m1
>= limit
->m1
.min
; clock
.m1
--) {
735 for (clock
.m2
= limit
->m2
.max
;
736 clock
.m2
>= limit
->m2
.min
; clock
.m2
--) {
737 for (clock
.p1
= limit
->p1
.max
;
738 clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
741 i9xx_clock(refclk
, &clock
);
742 if (!intel_PLL_is_valid(dev
, limit
,
746 this_err
= abs(clock
.dot
- target
);
747 if (this_err
< err_most
) {
761 vlv_find_best_dpll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
762 int target
, int refclk
, intel_clock_t
*match_clock
,
763 intel_clock_t
*best_clock
)
765 struct drm_device
*dev
= crtc
->dev
;
767 unsigned int bestppm
= 1000000;
768 /* min update 19.2 MHz */
769 int max_n
= min(limit
->n
.max
, refclk
/ 19200);
772 target
*= 5; /* fast clock */
774 memset(best_clock
, 0, sizeof(*best_clock
));
776 /* based on hardware requirement, prefer smaller n to precision */
777 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
778 for (clock
.p1
= limit
->p1
.max
; clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
779 for (clock
.p2
= limit
->p2
.p2_fast
; clock
.p2
>= limit
->p2
.p2_slow
;
780 clock
.p2
-= clock
.p2
> 10 ? 2 : 1) {
781 clock
.p
= clock
.p1
* clock
.p2
;
782 /* based on hardware requirement, prefer bigger m1,m2 values */
783 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
; clock
.m1
++) {
784 unsigned int ppm
, diff
;
786 clock
.m2
= DIV_ROUND_CLOSEST(target
* clock
.p
* clock
.n
,
789 vlv_clock(refclk
, &clock
);
791 if (!intel_PLL_is_valid(dev
, limit
,
795 diff
= abs(clock
.dot
- target
);
796 ppm
= div_u64(1000000ULL * diff
, target
);
798 if (ppm
< 100 && clock
.p
> best_clock
->p
) {
804 if (bestppm
>= 10 && ppm
< bestppm
- 10) {
818 chv_find_best_dpll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
819 int target
, int refclk
, intel_clock_t
*match_clock
,
820 intel_clock_t
*best_clock
)
822 struct drm_device
*dev
= crtc
->dev
;
827 memset(best_clock
, 0, sizeof(*best_clock
));
830 * Based on hardware doc, the n always set to 1, and m1 always
831 * set to 2. If requires to support 200Mhz refclk, we need to
832 * revisit this because n may not 1 anymore.
834 clock
.n
= 1, clock
.m1
= 2;
835 target
*= 5; /* fast clock */
837 for (clock
.p1
= limit
->p1
.max
; clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
838 for (clock
.p2
= limit
->p2
.p2_fast
;
839 clock
.p2
>= limit
->p2
.p2_slow
;
840 clock
.p2
-= clock
.p2
> 10 ? 2 : 1) {
842 clock
.p
= clock
.p1
* clock
.p2
;
844 m2
= DIV_ROUND_CLOSEST_ULL(((uint64_t)target
* clock
.p
*
845 clock
.n
) << 22, refclk
* clock
.m1
);
847 if (m2
> INT_MAX
/clock
.m1
)
852 chv_clock(refclk
, &clock
);
854 if (!intel_PLL_is_valid(dev
, limit
, &clock
))
857 /* based on hardware requirement, prefer bigger p
859 if (clock
.p
> best_clock
->p
) {
869 bool intel_crtc_active(struct drm_crtc
*crtc
)
871 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
873 /* Be paranoid as we can arrive here with only partial
874 * state retrieved from the hardware during setup.
876 * We can ditch the adjusted_mode.crtc_clock check as soon
877 * as Haswell has gained clock readout/fastboot support.
879 * We can ditch the crtc->primary->fb check as soon as we can
880 * properly reconstruct framebuffers.
882 return intel_crtc
->active
&& crtc
->primary
->fb
&&
883 intel_crtc
->config
.adjusted_mode
.crtc_clock
;
886 enum transcoder
intel_pipe_to_cpu_transcoder(struct drm_i915_private
*dev_priv
,
889 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
890 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
892 return intel_crtc
->config
.cpu_transcoder
;
895 static void g4x_wait_for_vblank(struct drm_device
*dev
, int pipe
)
897 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
898 u32 frame
, frame_reg
= PIPE_FRMCOUNT_GM45(pipe
);
900 frame
= I915_READ(frame_reg
);
902 if (wait_for(I915_READ_NOTRACE(frame_reg
) != frame
, 50))
903 WARN(1, "vblank wait timed out\n");
907 * intel_wait_for_vblank - wait for vblank on a given pipe
909 * @pipe: pipe to wait for
911 * Wait for vblank to occur on a given pipe. Needed for various bits of
914 void intel_wait_for_vblank(struct drm_device
*dev
, int pipe
)
916 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
917 int pipestat_reg
= PIPESTAT(pipe
);
919 if (IS_G4X(dev
) || INTEL_INFO(dev
)->gen
>= 5) {
920 g4x_wait_for_vblank(dev
, pipe
);
924 /* Clear existing vblank status. Note this will clear any other
925 * sticky status fields as well.
927 * This races with i915_driver_irq_handler() with the result
928 * that either function could miss a vblank event. Here it is not
929 * fatal, as we will either wait upon the next vblank interrupt or
930 * timeout. Generally speaking intel_wait_for_vblank() is only
931 * called during modeset at which time the GPU should be idle and
932 * should *not* be performing page flips and thus not waiting on
934 * Currently, the result of us stealing a vblank from the irq
935 * handler is that a single frame will be skipped during swapbuffers.
937 I915_WRITE(pipestat_reg
,
938 I915_READ(pipestat_reg
) | PIPE_VBLANK_INTERRUPT_STATUS
);
940 /* Wait for vblank interrupt bit to set */
941 if (wait_for(I915_READ(pipestat_reg
) &
942 PIPE_VBLANK_INTERRUPT_STATUS
,
944 DRM_DEBUG_KMS("vblank wait timed out\n");
947 static bool pipe_dsl_stopped(struct drm_device
*dev
, enum pipe pipe
)
949 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
950 u32 reg
= PIPEDSL(pipe
);
955 line_mask
= DSL_LINEMASK_GEN2
;
957 line_mask
= DSL_LINEMASK_GEN3
;
959 line1
= I915_READ(reg
) & line_mask
;
961 line2
= I915_READ(reg
) & line_mask
;
963 return line1
== line2
;
967 * intel_wait_for_pipe_off - wait for pipe to turn off
969 * @pipe: pipe to wait for
971 * After disabling a pipe, we can't wait for vblank in the usual way,
972 * spinning on the vblank interrupt status bit, since we won't actually
973 * see an interrupt when the pipe is disabled.
976 * wait for the pipe register state bit to turn off
979 * wait for the display line value to settle (it usually
980 * ends up stopping at the start of the next frame).
983 void intel_wait_for_pipe_off(struct drm_device
*dev
, int pipe
)
985 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
986 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
989 if (INTEL_INFO(dev
)->gen
>= 4) {
990 int reg
= PIPECONF(cpu_transcoder
);
992 /* Wait for the Pipe State to go off */
993 if (wait_for((I915_READ(reg
) & I965_PIPECONF_ACTIVE
) == 0,
995 WARN(1, "pipe_off wait timed out\n");
997 /* Wait for the display line to settle */
998 if (wait_for(pipe_dsl_stopped(dev
, pipe
), 100))
999 WARN(1, "pipe_off wait timed out\n");
1004 * ibx_digital_port_connected - is the specified port connected?
1005 * @dev_priv: i915 private structure
1006 * @port: the port to test
1008 * Returns true if @port is connected, false otherwise.
1010 bool ibx_digital_port_connected(struct drm_i915_private
*dev_priv
,
1011 struct intel_digital_port
*port
)
1015 if (HAS_PCH_IBX(dev_priv
->dev
)) {
1016 switch (port
->port
) {
1018 bit
= SDE_PORTB_HOTPLUG
;
1021 bit
= SDE_PORTC_HOTPLUG
;
1024 bit
= SDE_PORTD_HOTPLUG
;
1030 switch (port
->port
) {
1032 bit
= SDE_PORTB_HOTPLUG_CPT
;
1035 bit
= SDE_PORTC_HOTPLUG_CPT
;
1038 bit
= SDE_PORTD_HOTPLUG_CPT
;
1045 return I915_READ(SDEISR
) & bit
;
1048 static const char *state_string(bool enabled
)
1050 return enabled
? "on" : "off";
1053 /* Only for pre-ILK configs */
1054 void assert_pll(struct drm_i915_private
*dev_priv
,
1055 enum pipe pipe
, bool state
)
1062 val
= I915_READ(reg
);
1063 cur_state
= !!(val
& DPLL_VCO_ENABLE
);
1064 WARN(cur_state
!= state
,
1065 "PLL state assertion failure (expected %s, current %s)\n",
1066 state_string(state
), state_string(cur_state
));
1069 /* XXX: the dsi pll is shared between MIPI DSI ports */
1070 static void assert_dsi_pll(struct drm_i915_private
*dev_priv
, bool state
)
1075 mutex_lock(&dev_priv
->dpio_lock
);
1076 val
= vlv_cck_read(dev_priv
, CCK_REG_DSI_PLL_CONTROL
);
1077 mutex_unlock(&dev_priv
->dpio_lock
);
1079 cur_state
= val
& DSI_PLL_VCO_EN
;
1080 WARN(cur_state
!= state
,
1081 "DSI PLL state assertion failure (expected %s, current %s)\n",
1082 state_string(state
), state_string(cur_state
));
1084 #define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true)
1085 #define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false)
1087 struct intel_shared_dpll
*
1088 intel_crtc_to_shared_dpll(struct intel_crtc
*crtc
)
1090 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
1092 if (crtc
->config
.shared_dpll
< 0)
1095 return &dev_priv
->shared_dplls
[crtc
->config
.shared_dpll
];
1099 void assert_shared_dpll(struct drm_i915_private
*dev_priv
,
1100 struct intel_shared_dpll
*pll
,
1104 struct intel_dpll_hw_state hw_state
;
1107 "asserting DPLL %s with no DPLL\n", state_string(state
)))
1110 cur_state
= pll
->get_hw_state(dev_priv
, pll
, &hw_state
);
1111 WARN(cur_state
!= state
,
1112 "%s assertion failure (expected %s, current %s)\n",
1113 pll
->name
, state_string(state
), state_string(cur_state
));
1116 static void assert_fdi_tx(struct drm_i915_private
*dev_priv
,
1117 enum pipe pipe
, bool state
)
1122 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1125 if (HAS_DDI(dev_priv
->dev
)) {
1126 /* DDI does not have a specific FDI_TX register */
1127 reg
= TRANS_DDI_FUNC_CTL(cpu_transcoder
);
1128 val
= I915_READ(reg
);
1129 cur_state
= !!(val
& TRANS_DDI_FUNC_ENABLE
);
1131 reg
= FDI_TX_CTL(pipe
);
1132 val
= I915_READ(reg
);
1133 cur_state
= !!(val
& FDI_TX_ENABLE
);
1135 WARN(cur_state
!= state
,
1136 "FDI TX state assertion failure (expected %s, current %s)\n",
1137 state_string(state
), state_string(cur_state
));
1139 #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
1140 #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
1142 static void assert_fdi_rx(struct drm_i915_private
*dev_priv
,
1143 enum pipe pipe
, bool state
)
1149 reg
= FDI_RX_CTL(pipe
);
1150 val
= I915_READ(reg
);
1151 cur_state
= !!(val
& FDI_RX_ENABLE
);
1152 WARN(cur_state
!= state
,
1153 "FDI RX state assertion failure (expected %s, current %s)\n",
1154 state_string(state
), state_string(cur_state
));
1156 #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
1157 #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
1159 static void assert_fdi_tx_pll_enabled(struct drm_i915_private
*dev_priv
,
1165 /* ILK FDI PLL is always enabled */
1166 if (INTEL_INFO(dev_priv
->dev
)->gen
== 5)
1169 /* On Haswell, DDI ports are responsible for the FDI PLL setup */
1170 if (HAS_DDI(dev_priv
->dev
))
1173 reg
= FDI_TX_CTL(pipe
);
1174 val
= I915_READ(reg
);
1175 WARN(!(val
& FDI_TX_PLL_ENABLE
), "FDI TX PLL assertion failure, should be active but is disabled\n");
1178 void assert_fdi_rx_pll(struct drm_i915_private
*dev_priv
,
1179 enum pipe pipe
, bool state
)
1185 reg
= FDI_RX_CTL(pipe
);
1186 val
= I915_READ(reg
);
1187 cur_state
= !!(val
& FDI_RX_PLL_ENABLE
);
1188 WARN(cur_state
!= state
,
1189 "FDI RX PLL assertion failure (expected %s, current %s)\n",
1190 state_string(state
), state_string(cur_state
));
1193 static void assert_panel_unlocked(struct drm_i915_private
*dev_priv
,
1196 int pp_reg
, lvds_reg
;
1198 enum pipe panel_pipe
= PIPE_A
;
1201 if (HAS_PCH_SPLIT(dev_priv
->dev
)) {
1202 pp_reg
= PCH_PP_CONTROL
;
1203 lvds_reg
= PCH_LVDS
;
1205 pp_reg
= PP_CONTROL
;
1209 val
= I915_READ(pp_reg
);
1210 if (!(val
& PANEL_POWER_ON
) ||
1211 ((val
& PANEL_UNLOCK_REGS
) == PANEL_UNLOCK_REGS
))
1214 if (I915_READ(lvds_reg
) & LVDS_PIPEB_SELECT
)
1215 panel_pipe
= PIPE_B
;
1217 WARN(panel_pipe
== pipe
&& locked
,
1218 "panel assertion failure, pipe %c regs locked\n",
1222 static void assert_cursor(struct drm_i915_private
*dev_priv
,
1223 enum pipe pipe
, bool state
)
1225 struct drm_device
*dev
= dev_priv
->dev
;
1228 if (IS_845G(dev
) || IS_I865G(dev
))
1229 cur_state
= I915_READ(_CURACNTR
) & CURSOR_ENABLE
;
1231 cur_state
= I915_READ(CURCNTR(pipe
)) & CURSOR_MODE
;
1233 WARN(cur_state
!= state
,
1234 "cursor on pipe %c assertion failure (expected %s, current %s)\n",
1235 pipe_name(pipe
), state_string(state
), state_string(cur_state
));
1237 #define assert_cursor_enabled(d, p) assert_cursor(d, p, true)
1238 #define assert_cursor_disabled(d, p) assert_cursor(d, p, false)
1240 void assert_pipe(struct drm_i915_private
*dev_priv
,
1241 enum pipe pipe
, bool state
)
1246 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1249 /* if we need the pipe A quirk it must be always on */
1250 if (pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
)
1253 if (!intel_display_power_enabled(dev_priv
,
1254 POWER_DOMAIN_TRANSCODER(cpu_transcoder
))) {
1257 reg
= PIPECONF(cpu_transcoder
);
1258 val
= I915_READ(reg
);
1259 cur_state
= !!(val
& PIPECONF_ENABLE
);
1262 WARN(cur_state
!= state
,
1263 "pipe %c assertion failure (expected %s, current %s)\n",
1264 pipe_name(pipe
), state_string(state
), state_string(cur_state
));
1267 static void assert_plane(struct drm_i915_private
*dev_priv
,
1268 enum plane plane
, bool state
)
1274 reg
= DSPCNTR(plane
);
1275 val
= I915_READ(reg
);
1276 cur_state
= !!(val
& DISPLAY_PLANE_ENABLE
);
1277 WARN(cur_state
!= state
,
1278 "plane %c assertion failure (expected %s, current %s)\n",
1279 plane_name(plane
), state_string(state
), state_string(cur_state
));
1282 #define assert_plane_enabled(d, p) assert_plane(d, p, true)
1283 #define assert_plane_disabled(d, p) assert_plane(d, p, false)
1285 static void assert_planes_disabled(struct drm_i915_private
*dev_priv
,
1288 struct drm_device
*dev
= dev_priv
->dev
;
1293 /* Primary planes are fixed to pipes on gen4+ */
1294 if (INTEL_INFO(dev
)->gen
>= 4) {
1295 reg
= DSPCNTR(pipe
);
1296 val
= I915_READ(reg
);
1297 WARN(val
& DISPLAY_PLANE_ENABLE
,
1298 "plane %c assertion failure, should be disabled but not\n",
1303 /* Need to check both planes against the pipe */
1306 val
= I915_READ(reg
);
1307 cur_pipe
= (val
& DISPPLANE_SEL_PIPE_MASK
) >>
1308 DISPPLANE_SEL_PIPE_SHIFT
;
1309 WARN((val
& DISPLAY_PLANE_ENABLE
) && pipe
== cur_pipe
,
1310 "plane %c assertion failure, should be off on pipe %c but is still active\n",
1311 plane_name(i
), pipe_name(pipe
));
1315 static void assert_sprites_disabled(struct drm_i915_private
*dev_priv
,
1318 struct drm_device
*dev
= dev_priv
->dev
;
1322 if (IS_VALLEYVIEW(dev
)) {
1323 for_each_sprite(pipe
, sprite
) {
1324 reg
= SPCNTR(pipe
, sprite
);
1325 val
= I915_READ(reg
);
1326 WARN(val
& SP_ENABLE
,
1327 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1328 sprite_name(pipe
, sprite
), pipe_name(pipe
));
1330 } else if (INTEL_INFO(dev
)->gen
>= 7) {
1332 val
= I915_READ(reg
);
1333 WARN(val
& SPRITE_ENABLE
,
1334 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1335 plane_name(pipe
), pipe_name(pipe
));
1336 } else if (INTEL_INFO(dev
)->gen
>= 5) {
1337 reg
= DVSCNTR(pipe
);
1338 val
= I915_READ(reg
);
1339 WARN(val
& DVS_ENABLE
,
1340 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1341 plane_name(pipe
), pipe_name(pipe
));
1345 static void ibx_assert_pch_refclk_enabled(struct drm_i915_private
*dev_priv
)
1350 WARN_ON(!(HAS_PCH_IBX(dev_priv
->dev
) || HAS_PCH_CPT(dev_priv
->dev
)));
1352 val
= I915_READ(PCH_DREF_CONTROL
);
1353 enabled
= !!(val
& (DREF_SSC_SOURCE_MASK
| DREF_NONSPREAD_SOURCE_MASK
|
1354 DREF_SUPERSPREAD_SOURCE_MASK
));
1355 WARN(!enabled
, "PCH refclk assertion failure, should be active but is disabled\n");
1358 static void assert_pch_transcoder_disabled(struct drm_i915_private
*dev_priv
,
1365 reg
= PCH_TRANSCONF(pipe
);
1366 val
= I915_READ(reg
);
1367 enabled
= !!(val
& TRANS_ENABLE
);
1369 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1373 static bool dp_pipe_enabled(struct drm_i915_private
*dev_priv
,
1374 enum pipe pipe
, u32 port_sel
, u32 val
)
1376 if ((val
& DP_PORT_EN
) == 0)
1379 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1380 u32 trans_dp_ctl_reg
= TRANS_DP_CTL(pipe
);
1381 u32 trans_dp_ctl
= I915_READ(trans_dp_ctl_reg
);
1382 if ((trans_dp_ctl
& TRANS_DP_PORT_SEL_MASK
) != port_sel
)
1384 } else if (IS_CHERRYVIEW(dev_priv
->dev
)) {
1385 if ((val
& DP_PIPE_MASK_CHV
) != DP_PIPE_SELECT_CHV(pipe
))
1388 if ((val
& DP_PIPE_MASK
) != (pipe
<< 30))
1394 static bool hdmi_pipe_enabled(struct drm_i915_private
*dev_priv
,
1395 enum pipe pipe
, u32 val
)
1397 if ((val
& SDVO_ENABLE
) == 0)
1400 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1401 if ((val
& SDVO_PIPE_SEL_MASK_CPT
) != SDVO_PIPE_SEL_CPT(pipe
))
1403 } else if (IS_CHERRYVIEW(dev_priv
->dev
)) {
1404 if ((val
& SDVO_PIPE_SEL_MASK_CHV
) != SDVO_PIPE_SEL_CHV(pipe
))
1407 if ((val
& SDVO_PIPE_SEL_MASK
) != SDVO_PIPE_SEL(pipe
))
1413 static bool lvds_pipe_enabled(struct drm_i915_private
*dev_priv
,
1414 enum pipe pipe
, u32 val
)
1416 if ((val
& LVDS_PORT_EN
) == 0)
1419 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1420 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1423 if ((val
& LVDS_PIPE_MASK
) != LVDS_PIPE(pipe
))
1429 static bool adpa_pipe_enabled(struct drm_i915_private
*dev_priv
,
1430 enum pipe pipe
, u32 val
)
1432 if ((val
& ADPA_DAC_ENABLE
) == 0)
1434 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1435 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1438 if ((val
& ADPA_PIPE_SELECT_MASK
) != ADPA_PIPE_SELECT(pipe
))
1444 static void assert_pch_dp_disabled(struct drm_i915_private
*dev_priv
,
1445 enum pipe pipe
, int reg
, u32 port_sel
)
1447 u32 val
= I915_READ(reg
);
1448 WARN(dp_pipe_enabled(dev_priv
, pipe
, port_sel
, val
),
1449 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
1450 reg
, pipe_name(pipe
));
1452 WARN(HAS_PCH_IBX(dev_priv
->dev
) && (val
& DP_PORT_EN
) == 0
1453 && (val
& DP_PIPEB_SELECT
),
1454 "IBX PCH dp port still using transcoder B\n");
1457 static void assert_pch_hdmi_disabled(struct drm_i915_private
*dev_priv
,
1458 enum pipe pipe
, int reg
)
1460 u32 val
= I915_READ(reg
);
1461 WARN(hdmi_pipe_enabled(dev_priv
, pipe
, val
),
1462 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
1463 reg
, pipe_name(pipe
));
1465 WARN(HAS_PCH_IBX(dev_priv
->dev
) && (val
& SDVO_ENABLE
) == 0
1466 && (val
& SDVO_PIPE_B_SELECT
),
1467 "IBX PCH hdmi port still using transcoder B\n");
1470 static void assert_pch_ports_disabled(struct drm_i915_private
*dev_priv
,
1476 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_B
, TRANS_DP_PORT_SEL_B
);
1477 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_C
, TRANS_DP_PORT_SEL_C
);
1478 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_D
, TRANS_DP_PORT_SEL_D
);
1481 val
= I915_READ(reg
);
1482 WARN(adpa_pipe_enabled(dev_priv
, pipe
, val
),
1483 "PCH VGA enabled on transcoder %c, should be disabled\n",
1487 val
= I915_READ(reg
);
1488 WARN(lvds_pipe_enabled(dev_priv
, pipe
, val
),
1489 "PCH LVDS enabled on transcoder %c, should be disabled\n",
1492 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIB
);
1493 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIC
);
1494 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMID
);
1497 static void intel_init_dpio(struct drm_device
*dev
)
1499 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1501 if (!IS_VALLEYVIEW(dev
))
1505 * IOSF_PORT_DPIO is used for VLV x2 PHY (DP/HDMI B and C),
1506 * CHV x1 PHY (DP/HDMI D)
1507 * IOSF_PORT_DPIO_2 is used for CHV x2 PHY (DP/HDMI B and C)
1509 if (IS_CHERRYVIEW(dev
)) {
1510 DPIO_PHY_IOSF_PORT(DPIO_PHY0
) = IOSF_PORT_DPIO_2
;
1511 DPIO_PHY_IOSF_PORT(DPIO_PHY1
) = IOSF_PORT_DPIO
;
1513 DPIO_PHY_IOSF_PORT(DPIO_PHY0
) = IOSF_PORT_DPIO
;
1517 static void vlv_enable_pll(struct intel_crtc
*crtc
)
1519 struct drm_device
*dev
= crtc
->base
.dev
;
1520 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1521 int reg
= DPLL(crtc
->pipe
);
1522 u32 dpll
= crtc
->config
.dpll_hw_state
.dpll
;
1524 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1526 /* No really, not for ILK+ */
1527 BUG_ON(!IS_VALLEYVIEW(dev_priv
->dev
));
1529 /* PLL is protected by panel, make sure we can write it */
1530 if (IS_MOBILE(dev_priv
->dev
) && !IS_I830(dev_priv
->dev
))
1531 assert_panel_unlocked(dev_priv
, crtc
->pipe
);
1533 I915_WRITE(reg
, dpll
);
1537 if (wait_for(((I915_READ(reg
) & DPLL_LOCK_VLV
) == DPLL_LOCK_VLV
), 1))
1538 DRM_ERROR("DPLL %d failed to lock\n", crtc
->pipe
);
1540 I915_WRITE(DPLL_MD(crtc
->pipe
), crtc
->config
.dpll_hw_state
.dpll_md
);
1541 POSTING_READ(DPLL_MD(crtc
->pipe
));
1543 /* We do this three times for luck */
1544 I915_WRITE(reg
, dpll
);
1546 udelay(150); /* wait for warmup */
1547 I915_WRITE(reg
, dpll
);
1549 udelay(150); /* wait for warmup */
1550 I915_WRITE(reg
, dpll
);
1552 udelay(150); /* wait for warmup */
1555 static void chv_enable_pll(struct intel_crtc
*crtc
)
1557 struct drm_device
*dev
= crtc
->base
.dev
;
1558 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1559 int pipe
= crtc
->pipe
;
1560 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
1563 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1565 BUG_ON(!IS_CHERRYVIEW(dev_priv
->dev
));
1567 mutex_lock(&dev_priv
->dpio_lock
);
1569 /* Enable back the 10bit clock to display controller */
1570 tmp
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
));
1571 tmp
|= DPIO_DCLKP_EN
;
1572 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
), tmp
);
1575 * Need to wait > 100ns between dclkp clock enable bit and PLL enable.
1580 I915_WRITE(DPLL(pipe
), crtc
->config
.dpll_hw_state
.dpll
);
1582 /* Check PLL is locked */
1583 if (wait_for(((I915_READ(DPLL(pipe
)) & DPLL_LOCK_VLV
) == DPLL_LOCK_VLV
), 1))
1584 DRM_ERROR("PLL %d failed to lock\n", pipe
);
1586 /* not sure when this should be written */
1587 I915_WRITE(DPLL_MD(pipe
), crtc
->config
.dpll_hw_state
.dpll_md
);
1588 POSTING_READ(DPLL_MD(pipe
));
1590 mutex_unlock(&dev_priv
->dpio_lock
);
1593 static void i9xx_enable_pll(struct intel_crtc
*crtc
)
1595 struct drm_device
*dev
= crtc
->base
.dev
;
1596 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1597 int reg
= DPLL(crtc
->pipe
);
1598 u32 dpll
= crtc
->config
.dpll_hw_state
.dpll
;
1600 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1602 /* No really, not for ILK+ */
1603 BUG_ON(INTEL_INFO(dev
)->gen
>= 5);
1605 /* PLL is protected by panel, make sure we can write it */
1606 if (IS_MOBILE(dev
) && !IS_I830(dev
))
1607 assert_panel_unlocked(dev_priv
, crtc
->pipe
);
1609 I915_WRITE(reg
, dpll
);
1611 /* Wait for the clocks to stabilize. */
1615 if (INTEL_INFO(dev
)->gen
>= 4) {
1616 I915_WRITE(DPLL_MD(crtc
->pipe
),
1617 crtc
->config
.dpll_hw_state
.dpll_md
);
1619 /* The pixel multiplier can only be updated once the
1620 * DPLL is enabled and the clocks are stable.
1622 * So write it again.
1624 I915_WRITE(reg
, dpll
);
1627 /* We do this three times for luck */
1628 I915_WRITE(reg
, dpll
);
1630 udelay(150); /* wait for warmup */
1631 I915_WRITE(reg
, dpll
);
1633 udelay(150); /* wait for warmup */
1634 I915_WRITE(reg
, dpll
);
1636 udelay(150); /* wait for warmup */
1640 * i9xx_disable_pll - disable a PLL
1641 * @dev_priv: i915 private structure
1642 * @pipe: pipe PLL to disable
1644 * Disable the PLL for @pipe, making sure the pipe is off first.
1646 * Note! This is for pre-ILK only.
1648 static void i9xx_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1650 /* Don't disable pipe A or pipe A PLLs if needed */
1651 if (pipe
== PIPE_A
&& (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
))
1654 /* Make sure the pipe isn't still relying on us */
1655 assert_pipe_disabled(dev_priv
, pipe
);
1657 I915_WRITE(DPLL(pipe
), 0);
1658 POSTING_READ(DPLL(pipe
));
1661 static void vlv_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1665 /* Make sure the pipe isn't still relying on us */
1666 assert_pipe_disabled(dev_priv
, pipe
);
1669 * Leave integrated clock source and reference clock enabled for pipe B.
1670 * The latter is needed for VGA hotplug / manual detection.
1673 val
= DPLL_INTEGRATED_CRI_CLK_VLV
| DPLL_REFA_CLK_ENABLE_VLV
;
1674 I915_WRITE(DPLL(pipe
), val
);
1675 POSTING_READ(DPLL(pipe
));
1679 static void chv_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1681 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
1684 /* Make sure the pipe isn't still relying on us */
1685 assert_pipe_disabled(dev_priv
, pipe
);
1687 /* Set PLL en = 0 */
1688 val
= DPLL_SSC_REF_CLOCK_CHV
| DPLL_REFA_CLK_ENABLE_VLV
;
1690 val
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
1691 I915_WRITE(DPLL(pipe
), val
);
1692 POSTING_READ(DPLL(pipe
));
1694 mutex_lock(&dev_priv
->dpio_lock
);
1696 /* Disable 10bit clock to display controller */
1697 val
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
));
1698 val
&= ~DPIO_DCLKP_EN
;
1699 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
), val
);
1701 /* disable left/right clock distribution */
1702 if (pipe
!= PIPE_B
) {
1703 val
= vlv_dpio_read(dev_priv
, pipe
, _CHV_CMN_DW5_CH0
);
1704 val
&= ~(CHV_BUFLEFTENA1_MASK
| CHV_BUFRIGHTENA1_MASK
);
1705 vlv_dpio_write(dev_priv
, pipe
, _CHV_CMN_DW5_CH0
, val
);
1707 val
= vlv_dpio_read(dev_priv
, pipe
, _CHV_CMN_DW1_CH1
);
1708 val
&= ~(CHV_BUFLEFTENA2_MASK
| CHV_BUFRIGHTENA2_MASK
);
1709 vlv_dpio_write(dev_priv
, pipe
, _CHV_CMN_DW1_CH1
, val
);
1712 mutex_unlock(&dev_priv
->dpio_lock
);
1715 void vlv_wait_port_ready(struct drm_i915_private
*dev_priv
,
1716 struct intel_digital_port
*dport
)
1721 switch (dport
->port
) {
1723 port_mask
= DPLL_PORTB_READY_MASK
;
1727 port_mask
= DPLL_PORTC_READY_MASK
;
1731 port_mask
= DPLL_PORTD_READY_MASK
;
1732 dpll_reg
= DPIO_PHY_STATUS
;
1738 if (wait_for((I915_READ(dpll_reg
) & port_mask
) == 0, 1000))
1739 WARN(1, "timed out waiting for port %c ready: 0x%08x\n",
1740 port_name(dport
->port
), I915_READ(dpll_reg
));
1743 static void intel_prepare_shared_dpll(struct intel_crtc
*crtc
)
1745 struct drm_device
*dev
= crtc
->base
.dev
;
1746 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1747 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
1749 if (WARN_ON(pll
== NULL
))
1752 WARN_ON(!pll
->refcount
);
1753 if (pll
->active
== 0) {
1754 DRM_DEBUG_DRIVER("setting up %s\n", pll
->name
);
1756 assert_shared_dpll_disabled(dev_priv
, pll
);
1758 pll
->mode_set(dev_priv
, pll
);
1763 * intel_enable_shared_dpll - enable PCH PLL
1764 * @dev_priv: i915 private structure
1765 * @pipe: pipe PLL to enable
1767 * The PCH PLL needs to be enabled before the PCH transcoder, since it
1768 * drives the transcoder clock.
1770 static void intel_enable_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 if (WARN_ON(pll
->refcount
== 0))
1782 DRM_DEBUG_KMS("enable %s (active %d, on? %d) for crtc %d\n",
1783 pll
->name
, pll
->active
, pll
->on
,
1784 crtc
->base
.base
.id
);
1786 if (pll
->active
++) {
1788 assert_shared_dpll_enabled(dev_priv
, pll
);
1793 intel_display_power_get(dev_priv
, POWER_DOMAIN_PLLS
);
1795 DRM_DEBUG_KMS("enabling %s\n", pll
->name
);
1796 pll
->enable(dev_priv
, pll
);
1800 void intel_disable_shared_dpll(struct intel_crtc
*crtc
)
1802 struct drm_device
*dev
= crtc
->base
.dev
;
1803 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1804 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
1806 /* PCH only available on ILK+ */
1807 BUG_ON(INTEL_INFO(dev
)->gen
< 5);
1808 if (WARN_ON(pll
== NULL
))
1811 if (WARN_ON(pll
->refcount
== 0))
1814 DRM_DEBUG_KMS("disable %s (active %d, on? %d) for crtc %d\n",
1815 pll
->name
, pll
->active
, pll
->on
,
1816 crtc
->base
.base
.id
);
1818 if (WARN_ON(pll
->active
== 0)) {
1819 assert_shared_dpll_disabled(dev_priv
, pll
);
1823 assert_shared_dpll_enabled(dev_priv
, pll
);
1828 DRM_DEBUG_KMS("disabling %s\n", pll
->name
);
1829 pll
->disable(dev_priv
, pll
);
1832 intel_display_power_put(dev_priv
, POWER_DOMAIN_PLLS
);
1835 static void ironlake_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1838 struct drm_device
*dev
= dev_priv
->dev
;
1839 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
1840 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
1841 uint32_t reg
, val
, pipeconf_val
;
1843 /* PCH only available on ILK+ */
1844 BUG_ON(INTEL_INFO(dev
)->gen
< 5);
1846 /* Make sure PCH DPLL is enabled */
1847 assert_shared_dpll_enabled(dev_priv
,
1848 intel_crtc_to_shared_dpll(intel_crtc
));
1850 /* FDI must be feeding us bits for PCH ports */
1851 assert_fdi_tx_enabled(dev_priv
, pipe
);
1852 assert_fdi_rx_enabled(dev_priv
, pipe
);
1854 if (HAS_PCH_CPT(dev
)) {
1855 /* Workaround: Set the timing override bit before enabling the
1856 * pch transcoder. */
1857 reg
= TRANS_CHICKEN2(pipe
);
1858 val
= I915_READ(reg
);
1859 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
1860 I915_WRITE(reg
, val
);
1863 reg
= PCH_TRANSCONF(pipe
);
1864 val
= I915_READ(reg
);
1865 pipeconf_val
= I915_READ(PIPECONF(pipe
));
1867 if (HAS_PCH_IBX(dev_priv
->dev
)) {
1869 * make the BPC in transcoder be consistent with
1870 * that in pipeconf reg.
1872 val
&= ~PIPECONF_BPC_MASK
;
1873 val
|= pipeconf_val
& PIPECONF_BPC_MASK
;
1876 val
&= ~TRANS_INTERLACE_MASK
;
1877 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK
) == PIPECONF_INTERLACED_ILK
)
1878 if (HAS_PCH_IBX(dev_priv
->dev
) &&
1879 intel_pipe_has_type(crtc
, INTEL_OUTPUT_SDVO
))
1880 val
|= TRANS_LEGACY_INTERLACED_ILK
;
1882 val
|= TRANS_INTERLACED
;
1884 val
|= TRANS_PROGRESSIVE
;
1886 I915_WRITE(reg
, val
| TRANS_ENABLE
);
1887 if (wait_for(I915_READ(reg
) & TRANS_STATE_ENABLE
, 100))
1888 DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe
));
1891 static void lpt_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1892 enum transcoder cpu_transcoder
)
1894 u32 val
, pipeconf_val
;
1896 /* PCH only available on ILK+ */
1897 BUG_ON(INTEL_INFO(dev_priv
->dev
)->gen
< 5);
1899 /* FDI must be feeding us bits for PCH ports */
1900 assert_fdi_tx_enabled(dev_priv
, (enum pipe
) cpu_transcoder
);
1901 assert_fdi_rx_enabled(dev_priv
, TRANSCODER_A
);
1903 /* Workaround: set timing override bit. */
1904 val
= I915_READ(_TRANSA_CHICKEN2
);
1905 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
1906 I915_WRITE(_TRANSA_CHICKEN2
, val
);
1909 pipeconf_val
= I915_READ(PIPECONF(cpu_transcoder
));
1911 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK_HSW
) ==
1912 PIPECONF_INTERLACED_ILK
)
1913 val
|= TRANS_INTERLACED
;
1915 val
|= TRANS_PROGRESSIVE
;
1917 I915_WRITE(LPT_TRANSCONF
, val
);
1918 if (wait_for(I915_READ(LPT_TRANSCONF
) & TRANS_STATE_ENABLE
, 100))
1919 DRM_ERROR("Failed to enable PCH transcoder\n");
1922 static void ironlake_disable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1925 struct drm_device
*dev
= dev_priv
->dev
;
1928 /* FDI relies on the transcoder */
1929 assert_fdi_tx_disabled(dev_priv
, pipe
);
1930 assert_fdi_rx_disabled(dev_priv
, pipe
);
1932 /* Ports must be off as well */
1933 assert_pch_ports_disabled(dev_priv
, pipe
);
1935 reg
= PCH_TRANSCONF(pipe
);
1936 val
= I915_READ(reg
);
1937 val
&= ~TRANS_ENABLE
;
1938 I915_WRITE(reg
, val
);
1939 /* wait for PCH transcoder off, transcoder state */
1940 if (wait_for((I915_READ(reg
) & TRANS_STATE_ENABLE
) == 0, 50))
1941 DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe
));
1943 if (!HAS_PCH_IBX(dev
)) {
1944 /* Workaround: Clear the timing override chicken bit again. */
1945 reg
= TRANS_CHICKEN2(pipe
);
1946 val
= I915_READ(reg
);
1947 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
1948 I915_WRITE(reg
, val
);
1952 static void lpt_disable_pch_transcoder(struct drm_i915_private
*dev_priv
)
1956 val
= I915_READ(LPT_TRANSCONF
);
1957 val
&= ~TRANS_ENABLE
;
1958 I915_WRITE(LPT_TRANSCONF
, val
);
1959 /* wait for PCH transcoder off, transcoder state */
1960 if (wait_for((I915_READ(LPT_TRANSCONF
) & TRANS_STATE_ENABLE
) == 0, 50))
1961 DRM_ERROR("Failed to disable PCH transcoder\n");
1963 /* Workaround: clear timing override bit. */
1964 val
= I915_READ(_TRANSA_CHICKEN2
);
1965 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
1966 I915_WRITE(_TRANSA_CHICKEN2
, val
);
1970 * intel_enable_pipe - enable a pipe, asserting requirements
1971 * @crtc: crtc responsible for the pipe
1973 * Enable @crtc's pipe, making sure that various hardware specific requirements
1974 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
1976 static void intel_enable_pipe(struct intel_crtc
*crtc
)
1978 struct drm_device
*dev
= crtc
->base
.dev
;
1979 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1980 enum pipe pipe
= crtc
->pipe
;
1981 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1983 enum pipe pch_transcoder
;
1987 assert_planes_disabled(dev_priv
, pipe
);
1988 assert_cursor_disabled(dev_priv
, pipe
);
1989 assert_sprites_disabled(dev_priv
, pipe
);
1991 if (HAS_PCH_LPT(dev_priv
->dev
))
1992 pch_transcoder
= TRANSCODER_A
;
1994 pch_transcoder
= pipe
;
1997 * A pipe without a PLL won't actually be able to drive bits from
1998 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
2001 if (!HAS_PCH_SPLIT(dev_priv
->dev
))
2002 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DSI
))
2003 assert_dsi_pll_enabled(dev_priv
);
2005 assert_pll_enabled(dev_priv
, pipe
);
2007 if (crtc
->config
.has_pch_encoder
) {
2008 /* if driving the PCH, we need FDI enabled */
2009 assert_fdi_rx_pll_enabled(dev_priv
, pch_transcoder
);
2010 assert_fdi_tx_pll_enabled(dev_priv
,
2011 (enum pipe
) cpu_transcoder
);
2013 /* FIXME: assert CPU port conditions for SNB+ */
2016 reg
= PIPECONF(cpu_transcoder
);
2017 val
= I915_READ(reg
);
2018 if (val
& PIPECONF_ENABLE
) {
2019 WARN_ON(!(pipe
== PIPE_A
&&
2020 dev_priv
->quirks
& QUIRK_PIPEA_FORCE
));
2024 I915_WRITE(reg
, val
| PIPECONF_ENABLE
);
2029 * intel_disable_pipe - disable a pipe, asserting requirements
2030 * @dev_priv: i915 private structure
2031 * @pipe: pipe to disable
2033 * Disable @pipe, making sure that various hardware specific requirements
2034 * are met, if applicable, e.g. plane disabled, panel fitter off, etc.
2036 * @pipe should be %PIPE_A or %PIPE_B.
2038 * Will wait until the pipe has shut down before returning.
2040 static void intel_disable_pipe(struct drm_i915_private
*dev_priv
,
2043 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
2049 * Make sure planes won't keep trying to pump pixels to us,
2050 * or we might hang the display.
2052 assert_planes_disabled(dev_priv
, pipe
);
2053 assert_cursor_disabled(dev_priv
, pipe
);
2054 assert_sprites_disabled(dev_priv
, pipe
);
2056 /* Don't disable pipe A or pipe A PLLs if needed */
2057 if (pipe
== PIPE_A
&& (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
))
2060 reg
= PIPECONF(cpu_transcoder
);
2061 val
= I915_READ(reg
);
2062 if ((val
& PIPECONF_ENABLE
) == 0)
2065 I915_WRITE(reg
, val
& ~PIPECONF_ENABLE
);
2066 intel_wait_for_pipe_off(dev_priv
->dev
, pipe
);
2070 * Plane regs are double buffered, going from enabled->disabled needs a
2071 * trigger in order to latch. The display address reg provides this.
2073 void intel_flush_primary_plane(struct drm_i915_private
*dev_priv
,
2076 struct drm_device
*dev
= dev_priv
->dev
;
2077 u32 reg
= INTEL_INFO(dev
)->gen
>= 4 ? DSPSURF(plane
) : DSPADDR(plane
);
2079 I915_WRITE(reg
, I915_READ(reg
));
2084 * intel_enable_primary_hw_plane - enable the primary plane on a given pipe
2085 * @plane: plane to be enabled
2086 * @crtc: crtc for the plane
2088 * Enable @plane on @crtc, making sure that the pipe is running first.
2090 static void intel_enable_primary_hw_plane(struct drm_plane
*plane
,
2091 struct drm_crtc
*crtc
)
2093 struct drm_device
*dev
= plane
->dev
;
2094 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2095 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2097 /* If the pipe isn't enabled, we can't pump pixels and may hang */
2098 assert_pipe_enabled(dev_priv
, intel_crtc
->pipe
);
2100 if (intel_crtc
->primary_enabled
)
2103 intel_crtc
->primary_enabled
= true;
2105 dev_priv
->display
.update_primary_plane(crtc
, plane
->fb
,
2109 * BDW signals flip done immediately if the plane
2110 * is disabled, even if the plane enable is already
2111 * armed to occur at the next vblank :(
2113 if (IS_BROADWELL(dev
))
2114 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
2118 * intel_disable_primary_hw_plane - disable the primary hardware plane
2119 * @plane: plane to be disabled
2120 * @crtc: crtc for the plane
2122 * Disable @plane on @crtc, making sure that the pipe is running first.
2124 static void intel_disable_primary_hw_plane(struct drm_plane
*plane
,
2125 struct drm_crtc
*crtc
)
2127 struct drm_device
*dev
= plane
->dev
;
2128 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2129 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2131 assert_pipe_enabled(dev_priv
, intel_crtc
->pipe
);
2133 if (!intel_crtc
->primary_enabled
)
2136 intel_crtc
->primary_enabled
= false;
2138 dev_priv
->display
.update_primary_plane(crtc
, plane
->fb
,
2142 static bool need_vtd_wa(struct drm_device
*dev
)
2144 #ifdef CONFIG_INTEL_IOMMU
2145 if (INTEL_INFO(dev
)->gen
>= 6 && intel_iommu_gfx_mapped
)
2151 static int intel_align_height(struct drm_device
*dev
, int height
, bool tiled
)
2155 tile_height
= tiled
? (IS_GEN2(dev
) ? 16 : 8) : 1;
2156 return ALIGN(height
, tile_height
);
2160 intel_pin_and_fence_fb_obj(struct drm_device
*dev
,
2161 struct drm_i915_gem_object
*obj
,
2162 struct intel_engine_cs
*pipelined
)
2164 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2168 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
2170 switch (obj
->tiling_mode
) {
2171 case I915_TILING_NONE
:
2172 if (IS_BROADWATER(dev
) || IS_CRESTLINE(dev
))
2173 alignment
= 128 * 1024;
2174 else if (INTEL_INFO(dev
)->gen
>= 4)
2175 alignment
= 4 * 1024;
2177 alignment
= 64 * 1024;
2180 /* pin() will align the object as required by fence */
2184 WARN(1, "Y tiled bo slipped through, driver bug!\n");
2190 /* Note that the w/a also requires 64 PTE of padding following the
2191 * bo. We currently fill all unused PTE with the shadow page and so
2192 * we should always have valid PTE following the scanout preventing
2195 if (need_vtd_wa(dev
) && alignment
< 256 * 1024)
2196 alignment
= 256 * 1024;
2198 dev_priv
->mm
.interruptible
= false;
2199 ret
= i915_gem_object_pin_to_display_plane(obj
, alignment
, pipelined
);
2201 goto err_interruptible
;
2203 /* Install a fence for tiled scan-out. Pre-i965 always needs a
2204 * fence, whereas 965+ only requires a fence if using
2205 * framebuffer compression. For simplicity, we always install
2206 * a fence as the cost is not that onerous.
2208 ret
= i915_gem_object_get_fence(obj
);
2212 i915_gem_object_pin_fence(obj
);
2214 dev_priv
->mm
.interruptible
= true;
2218 i915_gem_object_unpin_from_display_plane(obj
);
2220 dev_priv
->mm
.interruptible
= true;
2224 void intel_unpin_fb_obj(struct drm_i915_gem_object
*obj
)
2226 WARN_ON(!mutex_is_locked(&obj
->base
.dev
->struct_mutex
));
2228 i915_gem_object_unpin_fence(obj
);
2229 i915_gem_object_unpin_from_display_plane(obj
);
2232 /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel
2233 * is assumed to be a power-of-two. */
2234 unsigned long intel_gen4_compute_page_offset(int *x
, int *y
,
2235 unsigned int tiling_mode
,
2239 if (tiling_mode
!= I915_TILING_NONE
) {
2240 unsigned int tile_rows
, tiles
;
2245 tiles
= *x
/ (512/cpp
);
2248 return tile_rows
* pitch
* 8 + tiles
* 4096;
2250 unsigned int offset
;
2252 offset
= *y
* pitch
+ *x
* cpp
;
2254 *x
= (offset
& 4095) / cpp
;
2255 return offset
& -4096;
2259 int intel_format_to_fourcc(int format
)
2262 case DISPPLANE_8BPP
:
2263 return DRM_FORMAT_C8
;
2264 case DISPPLANE_BGRX555
:
2265 return DRM_FORMAT_XRGB1555
;
2266 case DISPPLANE_BGRX565
:
2267 return DRM_FORMAT_RGB565
;
2269 case DISPPLANE_BGRX888
:
2270 return DRM_FORMAT_XRGB8888
;
2271 case DISPPLANE_RGBX888
:
2272 return DRM_FORMAT_XBGR8888
;
2273 case DISPPLANE_BGRX101010
:
2274 return DRM_FORMAT_XRGB2101010
;
2275 case DISPPLANE_RGBX101010
:
2276 return DRM_FORMAT_XBGR2101010
;
2280 static bool intel_alloc_plane_obj(struct intel_crtc
*crtc
,
2281 struct intel_plane_config
*plane_config
)
2283 struct drm_device
*dev
= crtc
->base
.dev
;
2284 struct drm_i915_gem_object
*obj
= NULL
;
2285 struct drm_mode_fb_cmd2 mode_cmd
= { 0 };
2286 u32 base
= plane_config
->base
;
2288 if (plane_config
->size
== 0)
2291 obj
= i915_gem_object_create_stolen_for_preallocated(dev
, base
, base
,
2292 plane_config
->size
);
2296 if (plane_config
->tiled
) {
2297 obj
->tiling_mode
= I915_TILING_X
;
2298 obj
->stride
= crtc
->base
.primary
->fb
->pitches
[0];
2301 mode_cmd
.pixel_format
= crtc
->base
.primary
->fb
->pixel_format
;
2302 mode_cmd
.width
= crtc
->base
.primary
->fb
->width
;
2303 mode_cmd
.height
= crtc
->base
.primary
->fb
->height
;
2304 mode_cmd
.pitches
[0] = crtc
->base
.primary
->fb
->pitches
[0];
2306 mutex_lock(&dev
->struct_mutex
);
2308 if (intel_framebuffer_init(dev
, to_intel_framebuffer(crtc
->base
.primary
->fb
),
2310 DRM_DEBUG_KMS("intel fb init failed\n");
2314 obj
->frontbuffer_bits
= INTEL_FRONTBUFFER_PRIMARY(crtc
->pipe
);
2315 mutex_unlock(&dev
->struct_mutex
);
2317 DRM_DEBUG_KMS("plane fb obj %p\n", obj
);
2321 drm_gem_object_unreference(&obj
->base
);
2322 mutex_unlock(&dev
->struct_mutex
);
2326 static void intel_find_plane_obj(struct intel_crtc
*intel_crtc
,
2327 struct intel_plane_config
*plane_config
)
2329 struct drm_device
*dev
= intel_crtc
->base
.dev
;
2331 struct intel_crtc
*i
;
2332 struct drm_i915_gem_object
*obj
;
2334 if (!intel_crtc
->base
.primary
->fb
)
2337 if (intel_alloc_plane_obj(intel_crtc
, plane_config
))
2340 kfree(intel_crtc
->base
.primary
->fb
);
2341 intel_crtc
->base
.primary
->fb
= NULL
;
2344 * Failed to alloc the obj, check to see if we should share
2345 * an fb with another CRTC instead
2347 for_each_crtc(dev
, c
) {
2348 i
= to_intel_crtc(c
);
2350 if (c
== &intel_crtc
->base
)
2356 obj
= intel_fb_obj(c
->primary
->fb
);
2360 if (i915_gem_obj_ggtt_offset(obj
) == plane_config
->base
) {
2361 drm_framebuffer_reference(c
->primary
->fb
);
2362 intel_crtc
->base
.primary
->fb
= c
->primary
->fb
;
2363 obj
->frontbuffer_bits
|= INTEL_FRONTBUFFER_PRIMARY(intel_crtc
->pipe
);
2369 static void i9xx_update_primary_plane(struct drm_crtc
*crtc
,
2370 struct drm_framebuffer
*fb
,
2373 struct drm_device
*dev
= crtc
->dev
;
2374 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2375 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2376 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
2377 int plane
= intel_crtc
->plane
;
2378 unsigned long linear_offset
;
2380 u32 reg
= DSPCNTR(plane
);
2382 if (!intel_crtc
->primary_enabled
) {
2384 if (INTEL_INFO(dev
)->gen
>= 4)
2385 I915_WRITE(DSPSURF(plane
), 0);
2387 I915_WRITE(DSPADDR(plane
), 0);
2392 dspcntr
= DISPPLANE_GAMMA_ENABLE
;
2394 dspcntr
|= DISPLAY_PLANE_ENABLE
;
2396 if (INTEL_INFO(dev
)->gen
< 4) {
2397 if (intel_crtc
->pipe
== PIPE_B
)
2398 dspcntr
|= DISPPLANE_SEL_PIPE_B
;
2400 /* pipesrc and dspsize control the size that is scaled from,
2401 * which should always be the user's requested size.
2403 I915_WRITE(DSPSIZE(plane
),
2404 ((intel_crtc
->config
.pipe_src_h
- 1) << 16) |
2405 (intel_crtc
->config
.pipe_src_w
- 1));
2406 I915_WRITE(DSPPOS(plane
), 0);
2409 switch (fb
->pixel_format
) {
2411 dspcntr
|= DISPPLANE_8BPP
;
2413 case DRM_FORMAT_XRGB1555
:
2414 case DRM_FORMAT_ARGB1555
:
2415 dspcntr
|= DISPPLANE_BGRX555
;
2417 case DRM_FORMAT_RGB565
:
2418 dspcntr
|= DISPPLANE_BGRX565
;
2420 case DRM_FORMAT_XRGB8888
:
2421 case DRM_FORMAT_ARGB8888
:
2422 dspcntr
|= DISPPLANE_BGRX888
;
2424 case DRM_FORMAT_XBGR8888
:
2425 case DRM_FORMAT_ABGR8888
:
2426 dspcntr
|= DISPPLANE_RGBX888
;
2428 case DRM_FORMAT_XRGB2101010
:
2429 case DRM_FORMAT_ARGB2101010
:
2430 dspcntr
|= DISPPLANE_BGRX101010
;
2432 case DRM_FORMAT_XBGR2101010
:
2433 case DRM_FORMAT_ABGR2101010
:
2434 dspcntr
|= DISPPLANE_RGBX101010
;
2440 if (INTEL_INFO(dev
)->gen
>= 4 &&
2441 obj
->tiling_mode
!= I915_TILING_NONE
)
2442 dspcntr
|= DISPPLANE_TILED
;
2445 dspcntr
|= DISPPLANE_TRICKLE_FEED_DISABLE
;
2447 I915_WRITE(reg
, dspcntr
);
2449 linear_offset
= y
* fb
->pitches
[0] + x
* (fb
->bits_per_pixel
/ 8);
2451 if (INTEL_INFO(dev
)->gen
>= 4) {
2452 intel_crtc
->dspaddr_offset
=
2453 intel_gen4_compute_page_offset(&x
, &y
, obj
->tiling_mode
,
2454 fb
->bits_per_pixel
/ 8,
2456 linear_offset
-= intel_crtc
->dspaddr_offset
;
2458 intel_crtc
->dspaddr_offset
= linear_offset
;
2461 DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
2462 i915_gem_obj_ggtt_offset(obj
), linear_offset
, x
, y
,
2464 I915_WRITE(DSPSTRIDE(plane
), fb
->pitches
[0]);
2465 if (INTEL_INFO(dev
)->gen
>= 4) {
2466 I915_WRITE(DSPSURF(plane
),
2467 i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
);
2468 I915_WRITE(DSPTILEOFF(plane
), (y
<< 16) | x
);
2469 I915_WRITE(DSPLINOFF(plane
), linear_offset
);
2471 I915_WRITE(DSPADDR(plane
), i915_gem_obj_ggtt_offset(obj
) + linear_offset
);
2475 static void ironlake_update_primary_plane(struct drm_crtc
*crtc
,
2476 struct drm_framebuffer
*fb
,
2479 struct drm_device
*dev
= crtc
->dev
;
2480 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2481 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2482 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
2483 int plane
= intel_crtc
->plane
;
2484 unsigned long linear_offset
;
2486 u32 reg
= DSPCNTR(plane
);
2488 if (!intel_crtc
->primary_enabled
) {
2490 I915_WRITE(DSPSURF(plane
), 0);
2495 dspcntr
= DISPPLANE_GAMMA_ENABLE
;
2497 dspcntr
|= DISPLAY_PLANE_ENABLE
;
2499 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
2500 dspcntr
|= DISPPLANE_PIPE_CSC_ENABLE
;
2502 switch (fb
->pixel_format
) {
2504 dspcntr
|= DISPPLANE_8BPP
;
2506 case DRM_FORMAT_RGB565
:
2507 dspcntr
|= DISPPLANE_BGRX565
;
2509 case DRM_FORMAT_XRGB8888
:
2510 case DRM_FORMAT_ARGB8888
:
2511 dspcntr
|= DISPPLANE_BGRX888
;
2513 case DRM_FORMAT_XBGR8888
:
2514 case DRM_FORMAT_ABGR8888
:
2515 dspcntr
|= DISPPLANE_RGBX888
;
2517 case DRM_FORMAT_XRGB2101010
:
2518 case DRM_FORMAT_ARGB2101010
:
2519 dspcntr
|= DISPPLANE_BGRX101010
;
2521 case DRM_FORMAT_XBGR2101010
:
2522 case DRM_FORMAT_ABGR2101010
:
2523 dspcntr
|= DISPPLANE_RGBX101010
;
2529 if (obj
->tiling_mode
!= I915_TILING_NONE
)
2530 dspcntr
|= DISPPLANE_TILED
;
2532 if (!IS_HASWELL(dev
) && !IS_BROADWELL(dev
))
2533 dspcntr
|= DISPPLANE_TRICKLE_FEED_DISABLE
;
2535 I915_WRITE(reg
, dspcntr
);
2537 linear_offset
= y
* fb
->pitches
[0] + x
* (fb
->bits_per_pixel
/ 8);
2538 intel_crtc
->dspaddr_offset
=
2539 intel_gen4_compute_page_offset(&x
, &y
, obj
->tiling_mode
,
2540 fb
->bits_per_pixel
/ 8,
2542 linear_offset
-= intel_crtc
->dspaddr_offset
;
2544 DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
2545 i915_gem_obj_ggtt_offset(obj
), linear_offset
, x
, y
,
2547 I915_WRITE(DSPSTRIDE(plane
), fb
->pitches
[0]);
2548 I915_WRITE(DSPSURF(plane
),
2549 i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
);
2550 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
2551 I915_WRITE(DSPOFFSET(plane
), (y
<< 16) | x
);
2553 I915_WRITE(DSPTILEOFF(plane
), (y
<< 16) | x
);
2554 I915_WRITE(DSPLINOFF(plane
), linear_offset
);
2559 /* Assume fb object is pinned & idle & fenced and just update base pointers */
2561 intel_pipe_set_base_atomic(struct drm_crtc
*crtc
, struct drm_framebuffer
*fb
,
2562 int x
, int y
, enum mode_set_atomic state
)
2564 struct drm_device
*dev
= crtc
->dev
;
2565 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2567 if (dev_priv
->display
.disable_fbc
)
2568 dev_priv
->display
.disable_fbc(dev
);
2569 intel_increase_pllclock(dev
, to_intel_crtc(crtc
)->pipe
);
2571 dev_priv
->display
.update_primary_plane(crtc
, fb
, x
, y
);
2576 void intel_display_handle_reset(struct drm_device
*dev
)
2578 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2579 struct drm_crtc
*crtc
;
2582 * Flips in the rings have been nuked by the reset,
2583 * so complete all pending flips so that user space
2584 * will get its events and not get stuck.
2586 * Also update the base address of all primary
2587 * planes to the the last fb to make sure we're
2588 * showing the correct fb after a reset.
2590 * Need to make two loops over the crtcs so that we
2591 * don't try to grab a crtc mutex before the
2592 * pending_flip_queue really got woken up.
2595 for_each_crtc(dev
, crtc
) {
2596 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2597 enum plane plane
= intel_crtc
->plane
;
2599 intel_prepare_page_flip(dev
, plane
);
2600 intel_finish_page_flip_plane(dev
, plane
);
2603 for_each_crtc(dev
, crtc
) {
2604 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2606 drm_modeset_lock(&crtc
->mutex
, NULL
);
2608 * FIXME: Once we have proper support for primary planes (and
2609 * disabling them without disabling the entire crtc) allow again
2610 * a NULL crtc->primary->fb.
2612 if (intel_crtc
->active
&& crtc
->primary
->fb
)
2613 dev_priv
->display
.update_primary_plane(crtc
,
2617 drm_modeset_unlock(&crtc
->mutex
);
2622 intel_finish_fb(struct drm_framebuffer
*old_fb
)
2624 struct drm_i915_gem_object
*obj
= intel_fb_obj(old_fb
);
2625 struct drm_i915_private
*dev_priv
= obj
->base
.dev
->dev_private
;
2626 bool was_interruptible
= dev_priv
->mm
.interruptible
;
2629 /* Big Hammer, we also need to ensure that any pending
2630 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
2631 * current scanout is retired before unpinning the old
2634 * This should only fail upon a hung GPU, in which case we
2635 * can safely continue.
2637 dev_priv
->mm
.interruptible
= false;
2638 ret
= i915_gem_object_finish_gpu(obj
);
2639 dev_priv
->mm
.interruptible
= was_interruptible
;
2644 static bool intel_crtc_has_pending_flip(struct drm_crtc
*crtc
)
2646 struct drm_device
*dev
= crtc
->dev
;
2647 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2648 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2649 unsigned long flags
;
2652 if (i915_reset_in_progress(&dev_priv
->gpu_error
) ||
2653 intel_crtc
->reset_counter
!= atomic_read(&dev_priv
->gpu_error
.reset_counter
))
2656 spin_lock_irqsave(&dev
->event_lock
, flags
);
2657 pending
= to_intel_crtc(crtc
)->unpin_work
!= NULL
;
2658 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
2664 intel_pipe_set_base(struct drm_crtc
*crtc
, int x
, int y
,
2665 struct drm_framebuffer
*fb
)
2667 struct drm_device
*dev
= crtc
->dev
;
2668 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2669 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2670 enum pipe pipe
= intel_crtc
->pipe
;
2671 struct drm_framebuffer
*old_fb
= crtc
->primary
->fb
;
2672 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
2673 struct drm_i915_gem_object
*old_obj
= intel_fb_obj(old_fb
);
2676 if (intel_crtc_has_pending_flip(crtc
)) {
2677 DRM_ERROR("pipe is still busy with an old pageflip\n");
2683 DRM_ERROR("No FB bound\n");
2687 if (intel_crtc
->plane
> INTEL_INFO(dev
)->num_pipes
) {
2688 DRM_ERROR("no plane for crtc: plane %c, num_pipes %d\n",
2689 plane_name(intel_crtc
->plane
),
2690 INTEL_INFO(dev
)->num_pipes
);
2694 mutex_lock(&dev
->struct_mutex
);
2695 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, NULL
);
2697 i915_gem_track_fb(old_obj
, obj
,
2698 INTEL_FRONTBUFFER_PRIMARY(pipe
));
2699 mutex_unlock(&dev
->struct_mutex
);
2701 DRM_ERROR("pin & fence failed\n");
2706 * Update pipe size and adjust fitter if needed: the reason for this is
2707 * that in compute_mode_changes we check the native mode (not the pfit
2708 * mode) to see if we can flip rather than do a full mode set. In the
2709 * fastboot case, we'll flip, but if we don't update the pipesrc and
2710 * pfit state, we'll end up with a big fb scanned out into the wrong
2713 * To fix this properly, we need to hoist the checks up into
2714 * compute_mode_changes (or above), check the actual pfit state and
2715 * whether the platform allows pfit disable with pipe active, and only
2716 * then update the pipesrc and pfit state, even on the flip path.
2718 if (i915
.fastboot
) {
2719 const struct drm_display_mode
*adjusted_mode
=
2720 &intel_crtc
->config
.adjusted_mode
;
2722 I915_WRITE(PIPESRC(intel_crtc
->pipe
),
2723 ((adjusted_mode
->crtc_hdisplay
- 1) << 16) |
2724 (adjusted_mode
->crtc_vdisplay
- 1));
2725 if (!intel_crtc
->config
.pch_pfit
.enabled
&&
2726 (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) ||
2727 intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
))) {
2728 I915_WRITE(PF_CTL(intel_crtc
->pipe
), 0);
2729 I915_WRITE(PF_WIN_POS(intel_crtc
->pipe
), 0);
2730 I915_WRITE(PF_WIN_SZ(intel_crtc
->pipe
), 0);
2732 intel_crtc
->config
.pipe_src_w
= adjusted_mode
->crtc_hdisplay
;
2733 intel_crtc
->config
.pipe_src_h
= adjusted_mode
->crtc_vdisplay
;
2736 dev_priv
->display
.update_primary_plane(crtc
, fb
, x
, y
);
2738 if (intel_crtc
->active
)
2739 intel_frontbuffer_flip(dev
, INTEL_FRONTBUFFER_PRIMARY(pipe
));
2741 crtc
->primary
->fb
= fb
;
2746 if (intel_crtc
->active
&& old_fb
!= fb
)
2747 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
2748 mutex_lock(&dev
->struct_mutex
);
2749 intel_unpin_fb_obj(old_obj
);
2750 mutex_unlock(&dev
->struct_mutex
);
2753 mutex_lock(&dev
->struct_mutex
);
2754 intel_update_fbc(dev
);
2755 mutex_unlock(&dev
->struct_mutex
);
2760 static void intel_fdi_normal_train(struct drm_crtc
*crtc
)
2762 struct drm_device
*dev
= crtc
->dev
;
2763 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2764 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2765 int pipe
= intel_crtc
->pipe
;
2768 /* enable normal train */
2769 reg
= FDI_TX_CTL(pipe
);
2770 temp
= I915_READ(reg
);
2771 if (IS_IVYBRIDGE(dev
)) {
2772 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
2773 temp
|= FDI_LINK_TRAIN_NONE_IVB
| FDI_TX_ENHANCE_FRAME_ENABLE
;
2775 temp
&= ~FDI_LINK_TRAIN_NONE
;
2776 temp
|= FDI_LINK_TRAIN_NONE
| FDI_TX_ENHANCE_FRAME_ENABLE
;
2778 I915_WRITE(reg
, temp
);
2780 reg
= FDI_RX_CTL(pipe
);
2781 temp
= I915_READ(reg
);
2782 if (HAS_PCH_CPT(dev
)) {
2783 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2784 temp
|= FDI_LINK_TRAIN_NORMAL_CPT
;
2786 temp
&= ~FDI_LINK_TRAIN_NONE
;
2787 temp
|= FDI_LINK_TRAIN_NONE
;
2789 I915_WRITE(reg
, temp
| FDI_RX_ENHANCE_FRAME_ENABLE
);
2791 /* wait one idle pattern time */
2795 /* IVB wants error correction enabled */
2796 if (IS_IVYBRIDGE(dev
))
2797 I915_WRITE(reg
, I915_READ(reg
) | FDI_FS_ERRC_ENABLE
|
2798 FDI_FE_ERRC_ENABLE
);
2801 static bool pipe_has_enabled_pch(struct intel_crtc
*crtc
)
2803 return crtc
->base
.enabled
&& crtc
->active
&&
2804 crtc
->config
.has_pch_encoder
;
2807 static void ivb_modeset_global_resources(struct drm_device
*dev
)
2809 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2810 struct intel_crtc
*pipe_B_crtc
=
2811 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[PIPE_B
]);
2812 struct intel_crtc
*pipe_C_crtc
=
2813 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[PIPE_C
]);
2817 * When everything is off disable fdi C so that we could enable fdi B
2818 * with all lanes. Note that we don't care about enabled pipes without
2819 * an enabled pch encoder.
2821 if (!pipe_has_enabled_pch(pipe_B_crtc
) &&
2822 !pipe_has_enabled_pch(pipe_C_crtc
)) {
2823 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B
)) & FDI_RX_ENABLE
);
2824 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C
)) & FDI_RX_ENABLE
);
2826 temp
= I915_READ(SOUTH_CHICKEN1
);
2827 temp
&= ~FDI_BC_BIFURCATION_SELECT
;
2828 DRM_DEBUG_KMS("disabling fdi C rx\n");
2829 I915_WRITE(SOUTH_CHICKEN1
, temp
);
2833 /* The FDI link training functions for ILK/Ibexpeak. */
2834 static void ironlake_fdi_link_train(struct drm_crtc
*crtc
)
2836 struct drm_device
*dev
= crtc
->dev
;
2837 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2838 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2839 int pipe
= intel_crtc
->pipe
;
2840 u32 reg
, temp
, tries
;
2842 /* FDI needs bits from pipe first */
2843 assert_pipe_enabled(dev_priv
, pipe
);
2845 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2847 reg
= FDI_RX_IMR(pipe
);
2848 temp
= I915_READ(reg
);
2849 temp
&= ~FDI_RX_SYMBOL_LOCK
;
2850 temp
&= ~FDI_RX_BIT_LOCK
;
2851 I915_WRITE(reg
, temp
);
2855 /* enable CPU FDI TX and PCH FDI RX */
2856 reg
= FDI_TX_CTL(pipe
);
2857 temp
= I915_READ(reg
);
2858 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
2859 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
.fdi_lanes
);
2860 temp
&= ~FDI_LINK_TRAIN_NONE
;
2861 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2862 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
2864 reg
= FDI_RX_CTL(pipe
);
2865 temp
= I915_READ(reg
);
2866 temp
&= ~FDI_LINK_TRAIN_NONE
;
2867 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2868 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
2873 /* Ironlake workaround, enable clock pointer after FDI enable*/
2874 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
2875 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
|
2876 FDI_RX_PHASE_SYNC_POINTER_EN
);
2878 reg
= FDI_RX_IIR(pipe
);
2879 for (tries
= 0; tries
< 5; tries
++) {
2880 temp
= I915_READ(reg
);
2881 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2883 if ((temp
& FDI_RX_BIT_LOCK
)) {
2884 DRM_DEBUG_KMS("FDI train 1 done.\n");
2885 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
2890 DRM_ERROR("FDI train 1 fail!\n");
2893 reg
= FDI_TX_CTL(pipe
);
2894 temp
= I915_READ(reg
);
2895 temp
&= ~FDI_LINK_TRAIN_NONE
;
2896 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2897 I915_WRITE(reg
, temp
);
2899 reg
= FDI_RX_CTL(pipe
);
2900 temp
= I915_READ(reg
);
2901 temp
&= ~FDI_LINK_TRAIN_NONE
;
2902 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2903 I915_WRITE(reg
, temp
);
2908 reg
= FDI_RX_IIR(pipe
);
2909 for (tries
= 0; tries
< 5; tries
++) {
2910 temp
= I915_READ(reg
);
2911 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2913 if (temp
& FDI_RX_SYMBOL_LOCK
) {
2914 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
2915 DRM_DEBUG_KMS("FDI train 2 done.\n");
2920 DRM_ERROR("FDI train 2 fail!\n");
2922 DRM_DEBUG_KMS("FDI train done\n");
2926 static const int snb_b_fdi_train_param
[] = {
2927 FDI_LINK_TRAIN_400MV_0DB_SNB_B
,
2928 FDI_LINK_TRAIN_400MV_6DB_SNB_B
,
2929 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B
,
2930 FDI_LINK_TRAIN_800MV_0DB_SNB_B
,
2933 /* The FDI link training functions for SNB/Cougarpoint. */
2934 static void gen6_fdi_link_train(struct drm_crtc
*crtc
)
2936 struct drm_device
*dev
= crtc
->dev
;
2937 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2938 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2939 int pipe
= intel_crtc
->pipe
;
2940 u32 reg
, temp
, i
, retry
;
2942 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2944 reg
= FDI_RX_IMR(pipe
);
2945 temp
= I915_READ(reg
);
2946 temp
&= ~FDI_RX_SYMBOL_LOCK
;
2947 temp
&= ~FDI_RX_BIT_LOCK
;
2948 I915_WRITE(reg
, temp
);
2953 /* enable CPU FDI TX and PCH FDI RX */
2954 reg
= FDI_TX_CTL(pipe
);
2955 temp
= I915_READ(reg
);
2956 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
2957 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
.fdi_lanes
);
2958 temp
&= ~FDI_LINK_TRAIN_NONE
;
2959 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2960 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2962 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
2963 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
2965 I915_WRITE(FDI_RX_MISC(pipe
),
2966 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
2968 reg
= FDI_RX_CTL(pipe
);
2969 temp
= I915_READ(reg
);
2970 if (HAS_PCH_CPT(dev
)) {
2971 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2972 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
2974 temp
&= ~FDI_LINK_TRAIN_NONE
;
2975 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2977 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
2982 for (i
= 0; i
< 4; i
++) {
2983 reg
= FDI_TX_CTL(pipe
);
2984 temp
= I915_READ(reg
);
2985 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2986 temp
|= snb_b_fdi_train_param
[i
];
2987 I915_WRITE(reg
, temp
);
2992 for (retry
= 0; retry
< 5; retry
++) {
2993 reg
= FDI_RX_IIR(pipe
);
2994 temp
= I915_READ(reg
);
2995 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2996 if (temp
& FDI_RX_BIT_LOCK
) {
2997 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
2998 DRM_DEBUG_KMS("FDI train 1 done.\n");
3007 DRM_ERROR("FDI train 1 fail!\n");
3010 reg
= FDI_TX_CTL(pipe
);
3011 temp
= I915_READ(reg
);
3012 temp
&= ~FDI_LINK_TRAIN_NONE
;
3013 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3015 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3017 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
3019 I915_WRITE(reg
, temp
);
3021 reg
= FDI_RX_CTL(pipe
);
3022 temp
= I915_READ(reg
);
3023 if (HAS_PCH_CPT(dev
)) {
3024 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3025 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
3027 temp
&= ~FDI_LINK_TRAIN_NONE
;
3028 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3030 I915_WRITE(reg
, temp
);
3035 for (i
= 0; i
< 4; i
++) {
3036 reg
= FDI_TX_CTL(pipe
);
3037 temp
= I915_READ(reg
);
3038 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3039 temp
|= snb_b_fdi_train_param
[i
];
3040 I915_WRITE(reg
, temp
);
3045 for (retry
= 0; retry
< 5; retry
++) {
3046 reg
= FDI_RX_IIR(pipe
);
3047 temp
= I915_READ(reg
);
3048 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3049 if (temp
& FDI_RX_SYMBOL_LOCK
) {
3050 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3051 DRM_DEBUG_KMS("FDI train 2 done.\n");
3060 DRM_ERROR("FDI train 2 fail!\n");
3062 DRM_DEBUG_KMS("FDI train done.\n");
3065 /* Manual link training for Ivy Bridge A0 parts */
3066 static void ivb_manual_fdi_link_train(struct drm_crtc
*crtc
)
3068 struct drm_device
*dev
= crtc
->dev
;
3069 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3070 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3071 int pipe
= intel_crtc
->pipe
;
3072 u32 reg
, temp
, i
, j
;
3074 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3076 reg
= FDI_RX_IMR(pipe
);
3077 temp
= I915_READ(reg
);
3078 temp
&= ~FDI_RX_SYMBOL_LOCK
;
3079 temp
&= ~FDI_RX_BIT_LOCK
;
3080 I915_WRITE(reg
, temp
);
3085 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
3086 I915_READ(FDI_RX_IIR(pipe
)));
3088 /* Try each vswing and preemphasis setting twice before moving on */
3089 for (j
= 0; j
< ARRAY_SIZE(snb_b_fdi_train_param
) * 2; j
++) {
3090 /* disable first in case we need to retry */
3091 reg
= FDI_TX_CTL(pipe
);
3092 temp
= I915_READ(reg
);
3093 temp
&= ~(FDI_LINK_TRAIN_AUTO
| FDI_LINK_TRAIN_NONE_IVB
);
3094 temp
&= ~FDI_TX_ENABLE
;
3095 I915_WRITE(reg
, temp
);
3097 reg
= FDI_RX_CTL(pipe
);
3098 temp
= I915_READ(reg
);
3099 temp
&= ~FDI_LINK_TRAIN_AUTO
;
3100 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3101 temp
&= ~FDI_RX_ENABLE
;
3102 I915_WRITE(reg
, temp
);
3104 /* enable CPU FDI TX and PCH FDI RX */
3105 reg
= FDI_TX_CTL(pipe
);
3106 temp
= I915_READ(reg
);
3107 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
3108 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
.fdi_lanes
);
3109 temp
|= FDI_LINK_TRAIN_PATTERN_1_IVB
;
3110 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3111 temp
|= snb_b_fdi_train_param
[j
/2];
3112 temp
|= FDI_COMPOSITE_SYNC
;
3113 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
3115 I915_WRITE(FDI_RX_MISC(pipe
),
3116 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
3118 reg
= FDI_RX_CTL(pipe
);
3119 temp
= I915_READ(reg
);
3120 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
3121 temp
|= FDI_COMPOSITE_SYNC
;
3122 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
3125 udelay(1); /* should be 0.5us */
3127 for (i
= 0; i
< 4; i
++) {
3128 reg
= FDI_RX_IIR(pipe
);
3129 temp
= I915_READ(reg
);
3130 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3132 if (temp
& FDI_RX_BIT_LOCK
||
3133 (I915_READ(reg
) & FDI_RX_BIT_LOCK
)) {
3134 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
3135 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n",
3139 udelay(1); /* should be 0.5us */
3142 DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j
/ 2);
3147 reg
= FDI_TX_CTL(pipe
);
3148 temp
= I915_READ(reg
);
3149 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
3150 temp
|= FDI_LINK_TRAIN_PATTERN_2_IVB
;
3151 I915_WRITE(reg
, temp
);
3153 reg
= FDI_RX_CTL(pipe
);
3154 temp
= I915_READ(reg
);
3155 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3156 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
3157 I915_WRITE(reg
, temp
);
3160 udelay(2); /* should be 1.5us */
3162 for (i
= 0; i
< 4; i
++) {
3163 reg
= FDI_RX_IIR(pipe
);
3164 temp
= I915_READ(reg
);
3165 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3167 if (temp
& FDI_RX_SYMBOL_LOCK
||
3168 (I915_READ(reg
) & FDI_RX_SYMBOL_LOCK
)) {
3169 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3170 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n",
3174 udelay(2); /* should be 1.5us */
3177 DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j
/ 2);
3181 DRM_DEBUG_KMS("FDI train done.\n");
3184 static void ironlake_fdi_pll_enable(struct intel_crtc
*intel_crtc
)
3186 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3187 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3188 int pipe
= intel_crtc
->pipe
;
3192 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
3193 reg
= FDI_RX_CTL(pipe
);
3194 temp
= I915_READ(reg
);
3195 temp
&= ~(FDI_DP_PORT_WIDTH_MASK
| (0x7 << 16));
3196 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
.fdi_lanes
);
3197 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
3198 I915_WRITE(reg
, temp
| FDI_RX_PLL_ENABLE
);
3203 /* Switch from Rawclk to PCDclk */
3204 temp
= I915_READ(reg
);
3205 I915_WRITE(reg
, temp
| FDI_PCDCLK
);
3210 /* Enable CPU FDI TX PLL, always on for Ironlake */
3211 reg
= FDI_TX_CTL(pipe
);
3212 temp
= I915_READ(reg
);
3213 if ((temp
& FDI_TX_PLL_ENABLE
) == 0) {
3214 I915_WRITE(reg
, temp
| FDI_TX_PLL_ENABLE
);
3221 static void ironlake_fdi_pll_disable(struct intel_crtc
*intel_crtc
)
3223 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3224 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3225 int pipe
= intel_crtc
->pipe
;
3228 /* Switch from PCDclk to Rawclk */
3229 reg
= FDI_RX_CTL(pipe
);
3230 temp
= I915_READ(reg
);
3231 I915_WRITE(reg
, temp
& ~FDI_PCDCLK
);
3233 /* Disable CPU FDI TX PLL */
3234 reg
= FDI_TX_CTL(pipe
);
3235 temp
= I915_READ(reg
);
3236 I915_WRITE(reg
, temp
& ~FDI_TX_PLL_ENABLE
);
3241 reg
= FDI_RX_CTL(pipe
);
3242 temp
= I915_READ(reg
);
3243 I915_WRITE(reg
, temp
& ~FDI_RX_PLL_ENABLE
);
3245 /* Wait for the clocks to turn off. */
3250 static void ironlake_fdi_disable(struct drm_crtc
*crtc
)
3252 struct drm_device
*dev
= crtc
->dev
;
3253 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3254 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3255 int pipe
= intel_crtc
->pipe
;
3258 /* disable CPU FDI tx and PCH FDI rx */
3259 reg
= FDI_TX_CTL(pipe
);
3260 temp
= I915_READ(reg
);
3261 I915_WRITE(reg
, temp
& ~FDI_TX_ENABLE
);
3264 reg
= FDI_RX_CTL(pipe
);
3265 temp
= I915_READ(reg
);
3266 temp
&= ~(0x7 << 16);
3267 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
3268 I915_WRITE(reg
, temp
& ~FDI_RX_ENABLE
);
3273 /* Ironlake workaround, disable clock pointer after downing FDI */
3274 if (HAS_PCH_IBX(dev
))
3275 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
3277 /* still set train pattern 1 */
3278 reg
= FDI_TX_CTL(pipe
);
3279 temp
= I915_READ(reg
);
3280 temp
&= ~FDI_LINK_TRAIN_NONE
;
3281 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3282 I915_WRITE(reg
, temp
);
3284 reg
= FDI_RX_CTL(pipe
);
3285 temp
= I915_READ(reg
);
3286 if (HAS_PCH_CPT(dev
)) {
3287 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3288 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
3290 temp
&= ~FDI_LINK_TRAIN_NONE
;
3291 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3293 /* BPC in FDI rx is consistent with that in PIPECONF */
3294 temp
&= ~(0x07 << 16);
3295 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
3296 I915_WRITE(reg
, temp
);
3302 bool intel_has_pending_fb_unpin(struct drm_device
*dev
)
3304 struct intel_crtc
*crtc
;
3306 /* Note that we don't need to be called with mode_config.lock here
3307 * as our list of CRTC objects is static for the lifetime of the
3308 * device and so cannot disappear as we iterate. Similarly, we can
3309 * happily treat the predicates as racy, atomic checks as userspace
3310 * cannot claim and pin a new fb without at least acquring the
3311 * struct_mutex and so serialising with us.
3313 for_each_intel_crtc(dev
, crtc
) {
3314 if (atomic_read(&crtc
->unpin_work_count
) == 0)
3317 if (crtc
->unpin_work
)
3318 intel_wait_for_vblank(dev
, crtc
->pipe
);
3326 void intel_crtc_wait_for_pending_flips(struct drm_crtc
*crtc
)
3328 struct drm_device
*dev
= crtc
->dev
;
3329 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3331 if (crtc
->primary
->fb
== NULL
)
3334 WARN_ON(waitqueue_active(&dev_priv
->pending_flip_queue
));
3336 WARN_ON(wait_event_timeout(dev_priv
->pending_flip_queue
,
3337 !intel_crtc_has_pending_flip(crtc
),
3340 mutex_lock(&dev
->struct_mutex
);
3341 intel_finish_fb(crtc
->primary
->fb
);
3342 mutex_unlock(&dev
->struct_mutex
);
3345 /* Program iCLKIP clock to the desired frequency */
3346 static void lpt_program_iclkip(struct drm_crtc
*crtc
)
3348 struct drm_device
*dev
= crtc
->dev
;
3349 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3350 int clock
= to_intel_crtc(crtc
)->config
.adjusted_mode
.crtc_clock
;
3351 u32 divsel
, phaseinc
, auxdiv
, phasedir
= 0;
3354 mutex_lock(&dev_priv
->dpio_lock
);
3356 /* It is necessary to ungate the pixclk gate prior to programming
3357 * the divisors, and gate it back when it is done.
3359 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_GATE
);
3361 /* Disable SSCCTL */
3362 intel_sbi_write(dev_priv
, SBI_SSCCTL6
,
3363 intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
) |
3367 /* 20MHz is a corner case which is out of range for the 7-bit divisor */
3368 if (clock
== 20000) {
3373 /* The iCLK virtual clock root frequency is in MHz,
3374 * but the adjusted_mode->crtc_clock in in KHz. To get the
3375 * divisors, it is necessary to divide one by another, so we
3376 * convert the virtual clock precision to KHz here for higher
3379 u32 iclk_virtual_root_freq
= 172800 * 1000;
3380 u32 iclk_pi_range
= 64;
3381 u32 desired_divisor
, msb_divisor_value
, pi_value
;
3383 desired_divisor
= (iclk_virtual_root_freq
/ clock
);
3384 msb_divisor_value
= desired_divisor
/ iclk_pi_range
;
3385 pi_value
= desired_divisor
% iclk_pi_range
;
3388 divsel
= msb_divisor_value
- 2;
3389 phaseinc
= pi_value
;
3392 /* This should not happen with any sane values */
3393 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel
) &
3394 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
);
3395 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir
) &
3396 ~SBI_SSCDIVINTPHASE_INCVAL_MASK
);
3398 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
3405 /* Program SSCDIVINTPHASE6 */
3406 temp
= intel_sbi_read(dev_priv
, SBI_SSCDIVINTPHASE6
, SBI_ICLK
);
3407 temp
&= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
;
3408 temp
|= SBI_SSCDIVINTPHASE_DIVSEL(divsel
);
3409 temp
&= ~SBI_SSCDIVINTPHASE_INCVAL_MASK
;
3410 temp
|= SBI_SSCDIVINTPHASE_INCVAL(phaseinc
);
3411 temp
|= SBI_SSCDIVINTPHASE_DIR(phasedir
);
3412 temp
|= SBI_SSCDIVINTPHASE_PROPAGATE
;
3413 intel_sbi_write(dev_priv
, SBI_SSCDIVINTPHASE6
, temp
, SBI_ICLK
);
3415 /* Program SSCAUXDIV */
3416 temp
= intel_sbi_read(dev_priv
, SBI_SSCAUXDIV6
, SBI_ICLK
);
3417 temp
&= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
3418 temp
|= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv
);
3419 intel_sbi_write(dev_priv
, SBI_SSCAUXDIV6
, temp
, SBI_ICLK
);
3421 /* Enable modulator and associated divider */
3422 temp
= intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
);
3423 temp
&= ~SBI_SSCCTL_DISABLE
;
3424 intel_sbi_write(dev_priv
, SBI_SSCCTL6
, temp
, SBI_ICLK
);
3426 /* Wait for initialization time */
3429 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_UNGATE
);
3431 mutex_unlock(&dev_priv
->dpio_lock
);
3434 static void ironlake_pch_transcoder_set_timings(struct intel_crtc
*crtc
,
3435 enum pipe pch_transcoder
)
3437 struct drm_device
*dev
= crtc
->base
.dev
;
3438 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3439 enum transcoder cpu_transcoder
= crtc
->config
.cpu_transcoder
;
3441 I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder
),
3442 I915_READ(HTOTAL(cpu_transcoder
)));
3443 I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder
),
3444 I915_READ(HBLANK(cpu_transcoder
)));
3445 I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder
),
3446 I915_READ(HSYNC(cpu_transcoder
)));
3448 I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder
),
3449 I915_READ(VTOTAL(cpu_transcoder
)));
3450 I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder
),
3451 I915_READ(VBLANK(cpu_transcoder
)));
3452 I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder
),
3453 I915_READ(VSYNC(cpu_transcoder
)));
3454 I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder
),
3455 I915_READ(VSYNCSHIFT(cpu_transcoder
)));
3458 static void cpt_enable_fdi_bc_bifurcation(struct drm_device
*dev
)
3460 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3463 temp
= I915_READ(SOUTH_CHICKEN1
);
3464 if (temp
& FDI_BC_BIFURCATION_SELECT
)
3467 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B
)) & FDI_RX_ENABLE
);
3468 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C
)) & FDI_RX_ENABLE
);
3470 temp
|= FDI_BC_BIFURCATION_SELECT
;
3471 DRM_DEBUG_KMS("enabling fdi C rx\n");
3472 I915_WRITE(SOUTH_CHICKEN1
, temp
);
3473 POSTING_READ(SOUTH_CHICKEN1
);
3476 static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc
*intel_crtc
)
3478 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3479 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3481 switch (intel_crtc
->pipe
) {
3485 if (intel_crtc
->config
.fdi_lanes
> 2)
3486 WARN_ON(I915_READ(SOUTH_CHICKEN1
) & FDI_BC_BIFURCATION_SELECT
);
3488 cpt_enable_fdi_bc_bifurcation(dev
);
3492 cpt_enable_fdi_bc_bifurcation(dev
);
3501 * Enable PCH resources required for PCH ports:
3503 * - FDI training & RX/TX
3504 * - update transcoder timings
3505 * - DP transcoding bits
3508 static void ironlake_pch_enable(struct drm_crtc
*crtc
)
3510 struct drm_device
*dev
= crtc
->dev
;
3511 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3512 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3513 int pipe
= intel_crtc
->pipe
;
3516 assert_pch_transcoder_disabled(dev_priv
, pipe
);
3518 if (IS_IVYBRIDGE(dev
))
3519 ivybridge_update_fdi_bc_bifurcation(intel_crtc
);
3521 /* Write the TU size bits before fdi link training, so that error
3522 * detection works. */
3523 I915_WRITE(FDI_RX_TUSIZE1(pipe
),
3524 I915_READ(PIPE_DATA_M1(pipe
)) & TU_SIZE_MASK
);
3526 /* For PCH output, training FDI link */
3527 dev_priv
->display
.fdi_link_train(crtc
);
3529 /* We need to program the right clock selection before writing the pixel
3530 * mutliplier into the DPLL. */
3531 if (HAS_PCH_CPT(dev
)) {
3534 temp
= I915_READ(PCH_DPLL_SEL
);
3535 temp
|= TRANS_DPLL_ENABLE(pipe
);
3536 sel
= TRANS_DPLLB_SEL(pipe
);
3537 if (intel_crtc
->config
.shared_dpll
== DPLL_ID_PCH_PLL_B
)
3541 I915_WRITE(PCH_DPLL_SEL
, temp
);
3544 /* XXX: pch pll's can be enabled any time before we enable the PCH
3545 * transcoder, and we actually should do this to not upset any PCH
3546 * transcoder that already use the clock when we share it.
3548 * Note that enable_shared_dpll tries to do the right thing, but
3549 * get_shared_dpll unconditionally resets the pll - we need that to have
3550 * the right LVDS enable sequence. */
3551 intel_enable_shared_dpll(intel_crtc
);
3553 /* set transcoder timing, panel must allow it */
3554 assert_panel_unlocked(dev_priv
, pipe
);
3555 ironlake_pch_transcoder_set_timings(intel_crtc
, pipe
);
3557 intel_fdi_normal_train(crtc
);
3559 /* For PCH DP, enable TRANS_DP_CTL */
3560 if (HAS_PCH_CPT(dev
) &&
3561 (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
) ||
3562 intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
))) {
3563 u32 bpc
= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) >> 5;
3564 reg
= TRANS_DP_CTL(pipe
);
3565 temp
= I915_READ(reg
);
3566 temp
&= ~(TRANS_DP_PORT_SEL_MASK
|
3567 TRANS_DP_SYNC_MASK
|
3569 temp
|= (TRANS_DP_OUTPUT_ENABLE
|
3570 TRANS_DP_ENH_FRAMING
);
3571 temp
|= bpc
<< 9; /* same format but at 11:9 */
3573 if (crtc
->mode
.flags
& DRM_MODE_FLAG_PHSYNC
)
3574 temp
|= TRANS_DP_HSYNC_ACTIVE_HIGH
;
3575 if (crtc
->mode
.flags
& DRM_MODE_FLAG_PVSYNC
)
3576 temp
|= TRANS_DP_VSYNC_ACTIVE_HIGH
;
3578 switch (intel_trans_dp_port_sel(crtc
)) {
3580 temp
|= TRANS_DP_PORT_SEL_B
;
3583 temp
|= TRANS_DP_PORT_SEL_C
;
3586 temp
|= TRANS_DP_PORT_SEL_D
;
3592 I915_WRITE(reg
, temp
);
3595 ironlake_enable_pch_transcoder(dev_priv
, pipe
);
3598 static void lpt_pch_enable(struct drm_crtc
*crtc
)
3600 struct drm_device
*dev
= crtc
->dev
;
3601 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3602 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3603 enum transcoder cpu_transcoder
= intel_crtc
->config
.cpu_transcoder
;
3605 assert_pch_transcoder_disabled(dev_priv
, TRANSCODER_A
);
3607 lpt_program_iclkip(crtc
);
3609 /* Set transcoder timing. */
3610 ironlake_pch_transcoder_set_timings(intel_crtc
, PIPE_A
);
3612 lpt_enable_pch_transcoder(dev_priv
, cpu_transcoder
);
3615 void intel_put_shared_dpll(struct intel_crtc
*crtc
)
3617 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
3622 if (pll
->refcount
== 0) {
3623 WARN(1, "bad %s refcount\n", pll
->name
);
3627 if (--pll
->refcount
== 0) {
3629 WARN_ON(pll
->active
);
3632 crtc
->config
.shared_dpll
= DPLL_ID_PRIVATE
;
3635 struct intel_shared_dpll
*intel_get_shared_dpll(struct intel_crtc
*crtc
)
3637 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
3638 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
3639 enum intel_dpll_id i
;
3642 DRM_DEBUG_KMS("CRTC:%d dropping existing %s\n",
3643 crtc
->base
.base
.id
, pll
->name
);
3644 intel_put_shared_dpll(crtc
);
3647 if (HAS_PCH_IBX(dev_priv
->dev
)) {
3648 /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
3649 i
= (enum intel_dpll_id
) crtc
->pipe
;
3650 pll
= &dev_priv
->shared_dplls
[i
];
3652 DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n",
3653 crtc
->base
.base
.id
, pll
->name
);
3655 WARN_ON(pll
->refcount
);
3660 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
3661 pll
= &dev_priv
->shared_dplls
[i
];
3663 /* Only want to check enabled timings first */
3664 if (pll
->refcount
== 0)
3667 if (memcmp(&crtc
->config
.dpll_hw_state
, &pll
->hw_state
,
3668 sizeof(pll
->hw_state
)) == 0) {
3669 DRM_DEBUG_KMS("CRTC:%d sharing existing %s (refcount %d, ative %d)\n",
3671 pll
->name
, pll
->refcount
, pll
->active
);
3677 /* Ok no matching timings, maybe there's a free one? */
3678 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
3679 pll
= &dev_priv
->shared_dplls
[i
];
3680 if (pll
->refcount
== 0) {
3681 DRM_DEBUG_KMS("CRTC:%d allocated %s\n",
3682 crtc
->base
.base
.id
, pll
->name
);
3690 if (pll
->refcount
== 0)
3691 pll
->hw_state
= crtc
->config
.dpll_hw_state
;
3693 crtc
->config
.shared_dpll
= i
;
3694 DRM_DEBUG_DRIVER("using %s for pipe %c\n", pll
->name
,
3695 pipe_name(crtc
->pipe
));
3702 static void cpt_verify_modeset(struct drm_device
*dev
, int pipe
)
3704 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3705 int dslreg
= PIPEDSL(pipe
);
3708 temp
= I915_READ(dslreg
);
3710 if (wait_for(I915_READ(dslreg
) != temp
, 5)) {
3711 if (wait_for(I915_READ(dslreg
) != temp
, 5))
3712 DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe
));
3716 static void ironlake_pfit_enable(struct intel_crtc
*crtc
)
3718 struct drm_device
*dev
= crtc
->base
.dev
;
3719 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3720 int pipe
= crtc
->pipe
;
3722 if (crtc
->config
.pch_pfit
.enabled
) {
3723 /* Force use of hard-coded filter coefficients
3724 * as some pre-programmed values are broken,
3727 if (IS_IVYBRIDGE(dev
) || IS_HASWELL(dev
))
3728 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
|
3729 PF_PIPE_SEL_IVB(pipe
));
3731 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
);
3732 I915_WRITE(PF_WIN_POS(pipe
), crtc
->config
.pch_pfit
.pos
);
3733 I915_WRITE(PF_WIN_SZ(pipe
), crtc
->config
.pch_pfit
.size
);
3737 static void intel_enable_planes(struct drm_crtc
*crtc
)
3739 struct drm_device
*dev
= crtc
->dev
;
3740 enum pipe pipe
= to_intel_crtc(crtc
)->pipe
;
3741 struct drm_plane
*plane
;
3742 struct intel_plane
*intel_plane
;
3744 drm_for_each_legacy_plane(plane
, &dev
->mode_config
.plane_list
) {
3745 intel_plane
= to_intel_plane(plane
);
3746 if (intel_plane
->pipe
== pipe
)
3747 intel_plane_restore(&intel_plane
->base
);
3751 static void intel_disable_planes(struct drm_crtc
*crtc
)
3753 struct drm_device
*dev
= crtc
->dev
;
3754 enum pipe pipe
= to_intel_crtc(crtc
)->pipe
;
3755 struct drm_plane
*plane
;
3756 struct intel_plane
*intel_plane
;
3758 drm_for_each_legacy_plane(plane
, &dev
->mode_config
.plane_list
) {
3759 intel_plane
= to_intel_plane(plane
);
3760 if (intel_plane
->pipe
== pipe
)
3761 intel_plane_disable(&intel_plane
->base
);
3765 void hsw_enable_ips(struct intel_crtc
*crtc
)
3767 struct drm_device
*dev
= crtc
->base
.dev
;
3768 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3770 if (!crtc
->config
.ips_enabled
)
3773 /* We can only enable IPS after we enable a plane and wait for a vblank */
3774 intel_wait_for_vblank(dev
, crtc
->pipe
);
3776 assert_plane_enabled(dev_priv
, crtc
->plane
);
3777 if (IS_BROADWELL(dev
)) {
3778 mutex_lock(&dev_priv
->rps
.hw_lock
);
3779 WARN_ON(sandybridge_pcode_write(dev_priv
, DISPLAY_IPS_CONTROL
, 0xc0000000));
3780 mutex_unlock(&dev_priv
->rps
.hw_lock
);
3781 /* Quoting Art Runyan: "its not safe to expect any particular
3782 * value in IPS_CTL bit 31 after enabling IPS through the
3783 * mailbox." Moreover, the mailbox may return a bogus state,
3784 * so we need to just enable it and continue on.
3787 I915_WRITE(IPS_CTL
, IPS_ENABLE
);
3788 /* The bit only becomes 1 in the next vblank, so this wait here
3789 * is essentially intel_wait_for_vblank. If we don't have this
3790 * and don't wait for vblanks until the end of crtc_enable, then
3791 * the HW state readout code will complain that the expected
3792 * IPS_CTL value is not the one we read. */
3793 if (wait_for(I915_READ_NOTRACE(IPS_CTL
) & IPS_ENABLE
, 50))
3794 DRM_ERROR("Timed out waiting for IPS enable\n");
3798 void hsw_disable_ips(struct intel_crtc
*crtc
)
3800 struct drm_device
*dev
= crtc
->base
.dev
;
3801 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3803 if (!crtc
->config
.ips_enabled
)
3806 assert_plane_enabled(dev_priv
, crtc
->plane
);
3807 if (IS_BROADWELL(dev
)) {
3808 mutex_lock(&dev_priv
->rps
.hw_lock
);
3809 WARN_ON(sandybridge_pcode_write(dev_priv
, DISPLAY_IPS_CONTROL
, 0));
3810 mutex_unlock(&dev_priv
->rps
.hw_lock
);
3811 /* wait for pcode to finish disabling IPS, which may take up to 42ms */
3812 if (wait_for((I915_READ(IPS_CTL
) & IPS_ENABLE
) == 0, 42))
3813 DRM_ERROR("Timed out waiting for IPS disable\n");
3815 I915_WRITE(IPS_CTL
, 0);
3816 POSTING_READ(IPS_CTL
);
3819 /* We need to wait for a vblank before we can disable the plane. */
3820 intel_wait_for_vblank(dev
, crtc
->pipe
);
3823 /** Loads the palette/gamma unit for the CRTC with the prepared values */
3824 static void intel_crtc_load_lut(struct drm_crtc
*crtc
)
3826 struct drm_device
*dev
= crtc
->dev
;
3827 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3828 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3829 enum pipe pipe
= intel_crtc
->pipe
;
3830 int palreg
= PALETTE(pipe
);
3832 bool reenable_ips
= false;
3834 /* The clocks have to be on to load the palette. */
3835 if (!crtc
->enabled
|| !intel_crtc
->active
)
3838 if (!HAS_PCH_SPLIT(dev_priv
->dev
)) {
3839 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DSI
))
3840 assert_dsi_pll_enabled(dev_priv
);
3842 assert_pll_enabled(dev_priv
, pipe
);
3845 /* use legacy palette for Ironlake */
3846 if (!HAS_GMCH_DISPLAY(dev
))
3847 palreg
= LGC_PALETTE(pipe
);
3849 /* Workaround : Do not read or write the pipe palette/gamma data while
3850 * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled.
3852 if (IS_HASWELL(dev
) && intel_crtc
->config
.ips_enabled
&&
3853 ((I915_READ(GAMMA_MODE(pipe
)) & GAMMA_MODE_MODE_MASK
) ==
3854 GAMMA_MODE_MODE_SPLIT
)) {
3855 hsw_disable_ips(intel_crtc
);
3856 reenable_ips
= true;
3859 for (i
= 0; i
< 256; i
++) {
3860 I915_WRITE(palreg
+ 4 * i
,
3861 (intel_crtc
->lut_r
[i
] << 16) |
3862 (intel_crtc
->lut_g
[i
] << 8) |
3863 intel_crtc
->lut_b
[i
]);
3867 hsw_enable_ips(intel_crtc
);
3870 static void intel_crtc_dpms_overlay(struct intel_crtc
*intel_crtc
, bool enable
)
3872 if (!enable
&& intel_crtc
->overlay
) {
3873 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3874 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3876 mutex_lock(&dev
->struct_mutex
);
3877 dev_priv
->mm
.interruptible
= false;
3878 (void) intel_overlay_switch_off(intel_crtc
->overlay
);
3879 dev_priv
->mm
.interruptible
= true;
3880 mutex_unlock(&dev
->struct_mutex
);
3883 /* Let userspace switch the overlay on again. In most cases userspace
3884 * has to recompute where to put it anyway.
3888 static void intel_crtc_enable_planes(struct drm_crtc
*crtc
)
3890 struct drm_device
*dev
= crtc
->dev
;
3891 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3892 int pipe
= intel_crtc
->pipe
;
3894 drm_vblank_on(dev
, pipe
);
3896 intel_enable_primary_hw_plane(crtc
->primary
, crtc
);
3897 intel_enable_planes(crtc
);
3898 intel_crtc_update_cursor(crtc
, true);
3899 intel_crtc_dpms_overlay(intel_crtc
, true);
3901 hsw_enable_ips(intel_crtc
);
3903 mutex_lock(&dev
->struct_mutex
);
3904 intel_update_fbc(dev
);
3905 mutex_unlock(&dev
->struct_mutex
);
3908 * FIXME: Once we grow proper nuclear flip support out of this we need
3909 * to compute the mask of flip planes precisely. For the time being
3910 * consider this a flip from a NULL plane.
3912 intel_frontbuffer_flip(dev
, INTEL_FRONTBUFFER_ALL_MASK(pipe
));
3915 static void intel_crtc_disable_planes(struct drm_crtc
*crtc
)
3917 struct drm_device
*dev
= crtc
->dev
;
3918 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3919 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3920 int pipe
= intel_crtc
->pipe
;
3921 int plane
= intel_crtc
->plane
;
3923 intel_crtc_wait_for_pending_flips(crtc
);
3925 if (dev_priv
->fbc
.plane
== plane
)
3926 intel_disable_fbc(dev
);
3928 hsw_disable_ips(intel_crtc
);
3930 intel_crtc_dpms_overlay(intel_crtc
, false);
3931 intel_crtc_update_cursor(crtc
, false);
3932 intel_disable_planes(crtc
);
3933 intel_disable_primary_hw_plane(crtc
->primary
, crtc
);
3936 * FIXME: Once we grow proper nuclear flip support out of this we need
3937 * to compute the mask of flip planes precisely. For the time being
3938 * consider this a flip to a NULL plane.
3940 intel_frontbuffer_flip(dev
, INTEL_FRONTBUFFER_ALL_MASK(pipe
));
3942 drm_vblank_off(dev
, pipe
);
3945 static void ironlake_crtc_enable(struct drm_crtc
*crtc
)
3947 struct drm_device
*dev
= crtc
->dev
;
3948 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3949 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3950 struct intel_encoder
*encoder
;
3951 int pipe
= intel_crtc
->pipe
;
3953 WARN_ON(!crtc
->enabled
);
3955 if (intel_crtc
->active
)
3958 if (intel_crtc
->config
.has_pch_encoder
)
3959 intel_prepare_shared_dpll(intel_crtc
);
3961 if (intel_crtc
->config
.has_dp_encoder
)
3962 intel_dp_set_m_n(intel_crtc
);
3964 intel_set_pipe_timings(intel_crtc
);
3966 if (intel_crtc
->config
.has_pch_encoder
) {
3967 intel_cpu_transcoder_set_m_n(intel_crtc
,
3968 &intel_crtc
->config
.fdi_m_n
, NULL
);
3971 ironlake_set_pipeconf(crtc
);
3973 intel_crtc
->active
= true;
3975 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, true);
3976 intel_set_pch_fifo_underrun_reporting(dev
, pipe
, true);
3978 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3979 if (encoder
->pre_enable
)
3980 encoder
->pre_enable(encoder
);
3982 if (intel_crtc
->config
.has_pch_encoder
) {
3983 /* Note: FDI PLL enabling _must_ be done before we enable the
3984 * cpu pipes, hence this is separate from all the other fdi/pch
3986 ironlake_fdi_pll_enable(intel_crtc
);
3988 assert_fdi_tx_disabled(dev_priv
, pipe
);
3989 assert_fdi_rx_disabled(dev_priv
, pipe
);
3992 ironlake_pfit_enable(intel_crtc
);
3995 * On ILK+ LUT must be loaded before the pipe is running but with
3998 intel_crtc_load_lut(crtc
);
4000 intel_update_watermarks(crtc
);
4001 intel_enable_pipe(intel_crtc
);
4003 if (intel_crtc
->config
.has_pch_encoder
)
4004 ironlake_pch_enable(crtc
);
4006 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4007 encoder
->enable(encoder
);
4009 if (HAS_PCH_CPT(dev
))
4010 cpt_verify_modeset(dev
, intel_crtc
->pipe
);
4012 intel_crtc_enable_planes(crtc
);
4015 /* IPS only exists on ULT machines and is tied to pipe A. */
4016 static bool hsw_crtc_supports_ips(struct intel_crtc
*crtc
)
4018 return HAS_IPS(crtc
->base
.dev
) && crtc
->pipe
== PIPE_A
;
4022 * This implements the workaround described in the "notes" section of the mode
4023 * set sequence documentation. When going from no pipes or single pipe to
4024 * multiple pipes, and planes are enabled after the pipe, we need to wait at
4025 * least 2 vblanks on the first pipe before enabling planes on the second pipe.
4027 static void haswell_mode_set_planes_workaround(struct intel_crtc
*crtc
)
4029 struct drm_device
*dev
= crtc
->base
.dev
;
4030 struct intel_crtc
*crtc_it
, *other_active_crtc
= NULL
;
4032 /* We want to get the other_active_crtc only if there's only 1 other
4034 for_each_intel_crtc(dev
, crtc_it
) {
4035 if (!crtc_it
->active
|| crtc_it
== crtc
)
4038 if (other_active_crtc
)
4041 other_active_crtc
= crtc_it
;
4043 if (!other_active_crtc
)
4046 intel_wait_for_vblank(dev
, other_active_crtc
->pipe
);
4047 intel_wait_for_vblank(dev
, other_active_crtc
->pipe
);
4050 static void haswell_crtc_enable(struct drm_crtc
*crtc
)
4052 struct drm_device
*dev
= crtc
->dev
;
4053 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4054 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4055 struct intel_encoder
*encoder
;
4056 int pipe
= intel_crtc
->pipe
;
4058 WARN_ON(!crtc
->enabled
);
4060 if (intel_crtc
->active
)
4063 if (intel_crtc_to_shared_dpll(intel_crtc
))
4064 intel_enable_shared_dpll(intel_crtc
);
4066 if (intel_crtc
->config
.has_dp_encoder
)
4067 intel_dp_set_m_n(intel_crtc
);
4069 intel_set_pipe_timings(intel_crtc
);
4071 if (intel_crtc
->config
.has_pch_encoder
) {
4072 intel_cpu_transcoder_set_m_n(intel_crtc
,
4073 &intel_crtc
->config
.fdi_m_n
, NULL
);
4076 haswell_set_pipeconf(crtc
);
4078 intel_set_pipe_csc(crtc
);
4080 intel_crtc
->active
= true;
4082 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, true);
4083 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4084 if (encoder
->pre_enable
)
4085 encoder
->pre_enable(encoder
);
4087 if (intel_crtc
->config
.has_pch_encoder
) {
4088 intel_set_pch_fifo_underrun_reporting(dev
, TRANSCODER_A
, true);
4089 dev_priv
->display
.fdi_link_train(crtc
);
4092 intel_ddi_enable_pipe_clock(intel_crtc
);
4094 ironlake_pfit_enable(intel_crtc
);
4097 * On ILK+ LUT must be loaded before the pipe is running but with
4100 intel_crtc_load_lut(crtc
);
4102 intel_ddi_set_pipe_settings(crtc
);
4103 intel_ddi_enable_transcoder_func(crtc
);
4105 intel_update_watermarks(crtc
);
4106 intel_enable_pipe(intel_crtc
);
4108 if (intel_crtc
->config
.has_pch_encoder
)
4109 lpt_pch_enable(crtc
);
4111 if (intel_crtc
->config
.dp_encoder_is_mst
)
4112 intel_ddi_set_vc_payload_alloc(crtc
, true);
4114 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
4115 encoder
->enable(encoder
);
4116 intel_opregion_notify_encoder(encoder
, true);
4119 /* If we change the relative order between pipe/planes enabling, we need
4120 * to change the workaround. */
4121 haswell_mode_set_planes_workaround(intel_crtc
);
4122 intel_crtc_enable_planes(crtc
);
4125 static void ironlake_pfit_disable(struct intel_crtc
*crtc
)
4127 struct drm_device
*dev
= crtc
->base
.dev
;
4128 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4129 int pipe
= crtc
->pipe
;
4131 /* To avoid upsetting the power well on haswell only disable the pfit if
4132 * it's in use. The hw state code will make sure we get this right. */
4133 if (crtc
->config
.pch_pfit
.enabled
) {
4134 I915_WRITE(PF_CTL(pipe
), 0);
4135 I915_WRITE(PF_WIN_POS(pipe
), 0);
4136 I915_WRITE(PF_WIN_SZ(pipe
), 0);
4140 static void ironlake_crtc_disable(struct drm_crtc
*crtc
)
4142 struct drm_device
*dev
= crtc
->dev
;
4143 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4144 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4145 struct intel_encoder
*encoder
;
4146 int pipe
= intel_crtc
->pipe
;
4149 if (!intel_crtc
->active
)
4152 intel_crtc_disable_planes(crtc
);
4154 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4155 encoder
->disable(encoder
);
4157 if (intel_crtc
->config
.has_pch_encoder
)
4158 intel_set_pch_fifo_underrun_reporting(dev
, pipe
, false);
4160 intel_disable_pipe(dev_priv
, pipe
);
4162 if (intel_crtc
->config
.dp_encoder_is_mst
)
4163 intel_ddi_set_vc_payload_alloc(crtc
, false);
4165 ironlake_pfit_disable(intel_crtc
);
4167 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4168 if (encoder
->post_disable
)
4169 encoder
->post_disable(encoder
);
4171 if (intel_crtc
->config
.has_pch_encoder
) {
4172 ironlake_fdi_disable(crtc
);
4174 ironlake_disable_pch_transcoder(dev_priv
, pipe
);
4175 intel_set_pch_fifo_underrun_reporting(dev
, pipe
, true);
4177 if (HAS_PCH_CPT(dev
)) {
4178 /* disable TRANS_DP_CTL */
4179 reg
= TRANS_DP_CTL(pipe
);
4180 temp
= I915_READ(reg
);
4181 temp
&= ~(TRANS_DP_OUTPUT_ENABLE
|
4182 TRANS_DP_PORT_SEL_MASK
);
4183 temp
|= TRANS_DP_PORT_SEL_NONE
;
4184 I915_WRITE(reg
, temp
);
4186 /* disable DPLL_SEL */
4187 temp
= I915_READ(PCH_DPLL_SEL
);
4188 temp
&= ~(TRANS_DPLL_ENABLE(pipe
) | TRANS_DPLLB_SEL(pipe
));
4189 I915_WRITE(PCH_DPLL_SEL
, temp
);
4192 /* disable PCH DPLL */
4193 intel_disable_shared_dpll(intel_crtc
);
4195 ironlake_fdi_pll_disable(intel_crtc
);
4198 intel_crtc
->active
= false;
4199 intel_update_watermarks(crtc
);
4201 mutex_lock(&dev
->struct_mutex
);
4202 intel_update_fbc(dev
);
4203 mutex_unlock(&dev
->struct_mutex
);
4206 static void haswell_crtc_disable(struct drm_crtc
*crtc
)
4208 struct drm_device
*dev
= crtc
->dev
;
4209 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4210 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4211 struct intel_encoder
*encoder
;
4212 int pipe
= intel_crtc
->pipe
;
4213 enum transcoder cpu_transcoder
= intel_crtc
->config
.cpu_transcoder
;
4215 if (!intel_crtc
->active
)
4218 intel_crtc_disable_planes(crtc
);
4220 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
4221 intel_opregion_notify_encoder(encoder
, false);
4222 encoder
->disable(encoder
);
4225 if (intel_crtc
->config
.has_pch_encoder
)
4226 intel_set_pch_fifo_underrun_reporting(dev
, TRANSCODER_A
, false);
4227 intel_disable_pipe(dev_priv
, pipe
);
4229 intel_ddi_disable_transcoder_func(dev_priv
, cpu_transcoder
);
4231 ironlake_pfit_disable(intel_crtc
);
4233 intel_ddi_disable_pipe_clock(intel_crtc
);
4235 if (intel_crtc
->config
.has_pch_encoder
) {
4236 lpt_disable_pch_transcoder(dev_priv
);
4237 intel_set_pch_fifo_underrun_reporting(dev
, TRANSCODER_A
, true);
4238 intel_ddi_fdi_disable(crtc
);
4241 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4242 if (encoder
->post_disable
)
4243 encoder
->post_disable(encoder
);
4245 intel_crtc
->active
= false;
4246 intel_update_watermarks(crtc
);
4248 mutex_lock(&dev
->struct_mutex
);
4249 intel_update_fbc(dev
);
4250 mutex_unlock(&dev
->struct_mutex
);
4252 if (intel_crtc_to_shared_dpll(intel_crtc
))
4253 intel_disable_shared_dpll(intel_crtc
);
4256 static void ironlake_crtc_off(struct drm_crtc
*crtc
)
4258 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4259 intel_put_shared_dpll(intel_crtc
);
4263 static void i9xx_pfit_enable(struct intel_crtc
*crtc
)
4265 struct drm_device
*dev
= crtc
->base
.dev
;
4266 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4267 struct intel_crtc_config
*pipe_config
= &crtc
->config
;
4269 if (!crtc
->config
.gmch_pfit
.control
)
4273 * The panel fitter should only be adjusted whilst the pipe is disabled,
4274 * according to register description and PRM.
4276 WARN_ON(I915_READ(PFIT_CONTROL
) & PFIT_ENABLE
);
4277 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
4279 I915_WRITE(PFIT_PGM_RATIOS
, pipe_config
->gmch_pfit
.pgm_ratios
);
4280 I915_WRITE(PFIT_CONTROL
, pipe_config
->gmch_pfit
.control
);
4282 /* Border color in case we don't scale up to the full screen. Black by
4283 * default, change to something else for debugging. */
4284 I915_WRITE(BCLRPAT(crtc
->pipe
), 0);
4287 static enum intel_display_power_domain
port_to_power_domain(enum port port
)
4291 return POWER_DOMAIN_PORT_DDI_A_4_LANES
;
4293 return POWER_DOMAIN_PORT_DDI_B_4_LANES
;
4295 return POWER_DOMAIN_PORT_DDI_C_4_LANES
;
4297 return POWER_DOMAIN_PORT_DDI_D_4_LANES
;
4300 return POWER_DOMAIN_PORT_OTHER
;
4304 #define for_each_power_domain(domain, mask) \
4305 for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
4306 if ((1 << (domain)) & (mask))
4308 enum intel_display_power_domain
4309 intel_display_port_power_domain(struct intel_encoder
*intel_encoder
)
4311 struct drm_device
*dev
= intel_encoder
->base
.dev
;
4312 struct intel_digital_port
*intel_dig_port
;
4314 switch (intel_encoder
->type
) {
4315 case INTEL_OUTPUT_UNKNOWN
:
4316 /* Only DDI platforms should ever use this output type */
4317 WARN_ON_ONCE(!HAS_DDI(dev
));
4318 case INTEL_OUTPUT_DISPLAYPORT
:
4319 case INTEL_OUTPUT_HDMI
:
4320 case INTEL_OUTPUT_EDP
:
4321 intel_dig_port
= enc_to_dig_port(&intel_encoder
->base
);
4322 return port_to_power_domain(intel_dig_port
->port
);
4323 case INTEL_OUTPUT_DP_MST
:
4324 intel_dig_port
= enc_to_mst(&intel_encoder
->base
)->primary
;
4325 return port_to_power_domain(intel_dig_port
->port
);
4326 case INTEL_OUTPUT_ANALOG
:
4327 return POWER_DOMAIN_PORT_CRT
;
4328 case INTEL_OUTPUT_DSI
:
4329 return POWER_DOMAIN_PORT_DSI
;
4331 return POWER_DOMAIN_PORT_OTHER
;
4335 static unsigned long get_crtc_power_domains(struct drm_crtc
*crtc
)
4337 struct drm_device
*dev
= crtc
->dev
;
4338 struct intel_encoder
*intel_encoder
;
4339 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4340 enum pipe pipe
= intel_crtc
->pipe
;
4342 enum transcoder transcoder
;
4344 transcoder
= intel_pipe_to_cpu_transcoder(dev
->dev_private
, pipe
);
4346 mask
= BIT(POWER_DOMAIN_PIPE(pipe
));
4347 mask
|= BIT(POWER_DOMAIN_TRANSCODER(transcoder
));
4348 if (intel_crtc
->config
.pch_pfit
.enabled
||
4349 intel_crtc
->config
.pch_pfit
.force_thru
)
4350 mask
|= BIT(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe
));
4352 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
)
4353 mask
|= BIT(intel_display_port_power_domain(intel_encoder
));
4358 void intel_display_set_init_power(struct drm_i915_private
*dev_priv
,
4361 if (dev_priv
->power_domains
.init_power_on
== enable
)
4365 intel_display_power_get(dev_priv
, POWER_DOMAIN_INIT
);
4367 intel_display_power_put(dev_priv
, POWER_DOMAIN_INIT
);
4369 dev_priv
->power_domains
.init_power_on
= enable
;
4372 static void modeset_update_crtc_power_domains(struct drm_device
*dev
)
4374 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4375 unsigned long pipe_domains
[I915_MAX_PIPES
] = { 0, };
4376 struct intel_crtc
*crtc
;
4379 * First get all needed power domains, then put all unneeded, to avoid
4380 * any unnecessary toggling of the power wells.
4382 for_each_intel_crtc(dev
, crtc
) {
4383 enum intel_display_power_domain domain
;
4385 if (!crtc
->base
.enabled
)
4388 pipe_domains
[crtc
->pipe
] = get_crtc_power_domains(&crtc
->base
);
4390 for_each_power_domain(domain
, pipe_domains
[crtc
->pipe
])
4391 intel_display_power_get(dev_priv
, domain
);
4394 for_each_intel_crtc(dev
, crtc
) {
4395 enum intel_display_power_domain domain
;
4397 for_each_power_domain(domain
, crtc
->enabled_power_domains
)
4398 intel_display_power_put(dev_priv
, domain
);
4400 crtc
->enabled_power_domains
= pipe_domains
[crtc
->pipe
];
4403 intel_display_set_init_power(dev_priv
, false);
4406 /* returns HPLL frequency in kHz */
4407 static int valleyview_get_vco(struct drm_i915_private
*dev_priv
)
4409 int hpll_freq
, vco_freq
[] = { 800, 1600, 2000, 2400 };
4411 /* Obtain SKU information */
4412 mutex_lock(&dev_priv
->dpio_lock
);
4413 hpll_freq
= vlv_cck_read(dev_priv
, CCK_FUSE_REG
) &
4414 CCK_FUSE_HPLL_FREQ_MASK
;
4415 mutex_unlock(&dev_priv
->dpio_lock
);
4417 return vco_freq
[hpll_freq
] * 1000;
4420 static void vlv_update_cdclk(struct drm_device
*dev
)
4422 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4424 dev_priv
->vlv_cdclk_freq
= dev_priv
->display
.get_display_clock_speed(dev
);
4425 DRM_DEBUG_DRIVER("Current CD clock rate: %d kHz",
4426 dev_priv
->vlv_cdclk_freq
);
4429 * Program the gmbus_freq based on the cdclk frequency.
4430 * BSpec erroneously claims we should aim for 4MHz, but
4431 * in fact 1MHz is the correct frequency.
4433 I915_WRITE(GMBUSFREQ_VLV
, dev_priv
->vlv_cdclk_freq
);
4436 /* Adjust CDclk dividers to allow high res or save power if possible */
4437 static void valleyview_set_cdclk(struct drm_device
*dev
, int cdclk
)
4439 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4442 WARN_ON(dev_priv
->display
.get_display_clock_speed(dev
) != dev_priv
->vlv_cdclk_freq
);
4444 if (cdclk
>= 320000) /* jump to highest voltage for 400MHz too */
4446 else if (cdclk
== 266667)
4451 mutex_lock(&dev_priv
->rps
.hw_lock
);
4452 val
= vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
);
4453 val
&= ~DSPFREQGUAR_MASK
;
4454 val
|= (cmd
<< DSPFREQGUAR_SHIFT
);
4455 vlv_punit_write(dev_priv
, PUNIT_REG_DSPFREQ
, val
);
4456 if (wait_for((vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
) &
4457 DSPFREQSTAT_MASK
) == (cmd
<< DSPFREQSTAT_SHIFT
),
4459 DRM_ERROR("timed out waiting for CDclk change\n");
4461 mutex_unlock(&dev_priv
->rps
.hw_lock
);
4463 if (cdclk
== 400000) {
4466 vco
= valleyview_get_vco(dev_priv
);
4467 divider
= DIV_ROUND_CLOSEST(vco
<< 1, cdclk
) - 1;
4469 mutex_lock(&dev_priv
->dpio_lock
);
4470 /* adjust cdclk divider */
4471 val
= vlv_cck_read(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
);
4472 val
&= ~DISPLAY_FREQUENCY_VALUES
;
4474 vlv_cck_write(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
, val
);
4476 if (wait_for((vlv_cck_read(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
) &
4477 DISPLAY_FREQUENCY_STATUS
) == (divider
<< DISPLAY_FREQUENCY_STATUS_SHIFT
),
4479 DRM_ERROR("timed out waiting for CDclk change\n");
4480 mutex_unlock(&dev_priv
->dpio_lock
);
4483 mutex_lock(&dev_priv
->dpio_lock
);
4484 /* adjust self-refresh exit latency value */
4485 val
= vlv_bunit_read(dev_priv
, BUNIT_REG_BISOC
);
4489 * For high bandwidth configs, we set a higher latency in the bunit
4490 * so that the core display fetch happens in time to avoid underruns.
4492 if (cdclk
== 400000)
4493 val
|= 4500 / 250; /* 4.5 usec */
4495 val
|= 3000 / 250; /* 3.0 usec */
4496 vlv_bunit_write(dev_priv
, BUNIT_REG_BISOC
, val
);
4497 mutex_unlock(&dev_priv
->dpio_lock
);
4499 vlv_update_cdclk(dev
);
4502 static void cherryview_set_cdclk(struct drm_device
*dev
, int cdclk
)
4504 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4507 WARN_ON(dev_priv
->display
.get_display_clock_speed(dev
) != dev_priv
->vlv_cdclk_freq
);
4528 mutex_lock(&dev_priv
->rps
.hw_lock
);
4529 val
= vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
);
4530 val
&= ~DSPFREQGUAR_MASK_CHV
;
4531 val
|= (cmd
<< DSPFREQGUAR_SHIFT_CHV
);
4532 vlv_punit_write(dev_priv
, PUNIT_REG_DSPFREQ
, val
);
4533 if (wait_for((vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
) &
4534 DSPFREQSTAT_MASK_CHV
) == (cmd
<< DSPFREQSTAT_SHIFT_CHV
),
4536 DRM_ERROR("timed out waiting for CDclk change\n");
4538 mutex_unlock(&dev_priv
->rps
.hw_lock
);
4540 vlv_update_cdclk(dev
);
4543 static int valleyview_calc_cdclk(struct drm_i915_private
*dev_priv
,
4546 int vco
= valleyview_get_vco(dev_priv
);
4547 int freq_320
= (vco
<< 1) % 320000 != 0 ? 333333 : 320000;
4549 /* FIXME: Punit isn't quite ready yet */
4550 if (IS_CHERRYVIEW(dev_priv
->dev
))
4554 * Really only a few cases to deal with, as only 4 CDclks are supported:
4557 * 320/333MHz (depends on HPLL freq)
4559 * So we check to see whether we're above 90% of the lower bin and
4562 * We seem to get an unstable or solid color picture at 200MHz.
4563 * Not sure what's wrong. For now use 200MHz only when all pipes
4566 if (max_pixclk
> freq_320
*9/10)
4568 else if (max_pixclk
> 266667*9/10)
4570 else if (max_pixclk
> 0)
4576 /* compute the max pixel clock for new configuration */
4577 static int intel_mode_max_pixclk(struct drm_i915_private
*dev_priv
)
4579 struct drm_device
*dev
= dev_priv
->dev
;
4580 struct intel_crtc
*intel_crtc
;
4583 for_each_intel_crtc(dev
, intel_crtc
) {
4584 if (intel_crtc
->new_enabled
)
4585 max_pixclk
= max(max_pixclk
,
4586 intel_crtc
->new_config
->adjusted_mode
.crtc_clock
);
4592 static void valleyview_modeset_global_pipes(struct drm_device
*dev
,
4593 unsigned *prepare_pipes
)
4595 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4596 struct intel_crtc
*intel_crtc
;
4597 int max_pixclk
= intel_mode_max_pixclk(dev_priv
);
4599 if (valleyview_calc_cdclk(dev_priv
, max_pixclk
) ==
4600 dev_priv
->vlv_cdclk_freq
)
4603 /* disable/enable all currently active pipes while we change cdclk */
4604 for_each_intel_crtc(dev
, intel_crtc
)
4605 if (intel_crtc
->base
.enabled
)
4606 *prepare_pipes
|= (1 << intel_crtc
->pipe
);
4609 static void valleyview_modeset_global_resources(struct drm_device
*dev
)
4611 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4612 int max_pixclk
= intel_mode_max_pixclk(dev_priv
);
4613 int req_cdclk
= valleyview_calc_cdclk(dev_priv
, max_pixclk
);
4615 if (req_cdclk
!= dev_priv
->vlv_cdclk_freq
) {
4616 if (IS_CHERRYVIEW(dev
))
4617 cherryview_set_cdclk(dev
, req_cdclk
);
4619 valleyview_set_cdclk(dev
, req_cdclk
);
4622 modeset_update_crtc_power_domains(dev
);
4625 static void valleyview_crtc_enable(struct drm_crtc
*crtc
)
4627 struct drm_device
*dev
= crtc
->dev
;
4628 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4629 struct intel_encoder
*encoder
;
4630 int pipe
= intel_crtc
->pipe
;
4633 WARN_ON(!crtc
->enabled
);
4635 if (intel_crtc
->active
)
4638 is_dsi
= intel_pipe_has_type(crtc
, INTEL_OUTPUT_DSI
);
4641 if (IS_CHERRYVIEW(dev
))
4642 chv_prepare_pll(intel_crtc
);
4644 vlv_prepare_pll(intel_crtc
);
4647 if (intel_crtc
->config
.has_dp_encoder
)
4648 intel_dp_set_m_n(intel_crtc
);
4650 intel_set_pipe_timings(intel_crtc
);
4652 i9xx_set_pipeconf(intel_crtc
);
4654 intel_crtc
->active
= true;
4656 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, true);
4658 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4659 if (encoder
->pre_pll_enable
)
4660 encoder
->pre_pll_enable(encoder
);
4663 if (IS_CHERRYVIEW(dev
))
4664 chv_enable_pll(intel_crtc
);
4666 vlv_enable_pll(intel_crtc
);
4669 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4670 if (encoder
->pre_enable
)
4671 encoder
->pre_enable(encoder
);
4673 i9xx_pfit_enable(intel_crtc
);
4675 intel_crtc_load_lut(crtc
);
4677 intel_update_watermarks(crtc
);
4678 intel_enable_pipe(intel_crtc
);
4680 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4681 encoder
->enable(encoder
);
4683 intel_crtc_enable_planes(crtc
);
4685 /* Underruns don't raise interrupts, so check manually. */
4686 i9xx_check_fifo_underruns(dev
);
4689 static void i9xx_set_pll_dividers(struct intel_crtc
*crtc
)
4691 struct drm_device
*dev
= crtc
->base
.dev
;
4692 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4694 I915_WRITE(FP0(crtc
->pipe
), crtc
->config
.dpll_hw_state
.fp0
);
4695 I915_WRITE(FP1(crtc
->pipe
), crtc
->config
.dpll_hw_state
.fp1
);
4698 static void i9xx_crtc_enable(struct drm_crtc
*crtc
)
4700 struct drm_device
*dev
= crtc
->dev
;
4701 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4702 struct intel_encoder
*encoder
;
4703 int pipe
= intel_crtc
->pipe
;
4705 WARN_ON(!crtc
->enabled
);
4707 if (intel_crtc
->active
)
4710 i9xx_set_pll_dividers(intel_crtc
);
4712 if (intel_crtc
->config
.has_dp_encoder
)
4713 intel_dp_set_m_n(intel_crtc
);
4715 intel_set_pipe_timings(intel_crtc
);
4717 i9xx_set_pipeconf(intel_crtc
);
4719 intel_crtc
->active
= true;
4722 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, true);
4724 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4725 if (encoder
->pre_enable
)
4726 encoder
->pre_enable(encoder
);
4728 i9xx_enable_pll(intel_crtc
);
4730 i9xx_pfit_enable(intel_crtc
);
4732 intel_crtc_load_lut(crtc
);
4734 intel_update_watermarks(crtc
);
4735 intel_enable_pipe(intel_crtc
);
4737 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4738 encoder
->enable(encoder
);
4740 intel_crtc_enable_planes(crtc
);
4743 * Gen2 reports pipe underruns whenever all planes are disabled.
4744 * So don't enable underrun reporting before at least some planes
4746 * FIXME: Need to fix the logic to work when we turn off all planes
4747 * but leave the pipe running.
4750 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, true);
4752 /* Underruns don't raise interrupts, so check manually. */
4753 i9xx_check_fifo_underruns(dev
);
4756 static void i9xx_pfit_disable(struct intel_crtc
*crtc
)
4758 struct drm_device
*dev
= crtc
->base
.dev
;
4759 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4761 if (!crtc
->config
.gmch_pfit
.control
)
4764 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
4766 DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n",
4767 I915_READ(PFIT_CONTROL
));
4768 I915_WRITE(PFIT_CONTROL
, 0);
4771 static void i9xx_crtc_disable(struct drm_crtc
*crtc
)
4773 struct drm_device
*dev
= crtc
->dev
;
4774 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4775 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4776 struct intel_encoder
*encoder
;
4777 int pipe
= intel_crtc
->pipe
;
4779 if (!intel_crtc
->active
)
4783 * Gen2 reports pipe underruns whenever all planes are disabled.
4784 * So diasble underrun reporting before all the planes get disabled.
4785 * FIXME: Need to fix the logic to work when we turn off all planes
4786 * but leave the pipe running.
4789 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, false);
4792 * Vblank time updates from the shadow to live plane control register
4793 * are blocked if the memory self-refresh mode is active at that
4794 * moment. So to make sure the plane gets truly disabled, disable
4795 * first the self-refresh mode. The self-refresh enable bit in turn
4796 * will be checked/applied by the HW only at the next frame start
4797 * event which is after the vblank start event, so we need to have a
4798 * wait-for-vblank between disabling the plane and the pipe.
4800 intel_set_memory_cxsr(dev_priv
, false);
4801 intel_crtc_disable_planes(crtc
);
4803 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4804 encoder
->disable(encoder
);
4807 * On gen2 planes are double buffered but the pipe isn't, so we must
4808 * wait for planes to fully turn off before disabling the pipe.
4809 * We also need to wait on all gmch platforms because of the
4810 * self-refresh mode constraint explained above.
4812 intel_wait_for_vblank(dev
, pipe
);
4814 intel_disable_pipe(dev_priv
, pipe
);
4816 i9xx_pfit_disable(intel_crtc
);
4818 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4819 if (encoder
->post_disable
)
4820 encoder
->post_disable(encoder
);
4822 if (!intel_pipe_has_type(crtc
, INTEL_OUTPUT_DSI
)) {
4823 if (IS_CHERRYVIEW(dev
))
4824 chv_disable_pll(dev_priv
, pipe
);
4825 else if (IS_VALLEYVIEW(dev
))
4826 vlv_disable_pll(dev_priv
, pipe
);
4828 i9xx_disable_pll(dev_priv
, pipe
);
4832 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, false);
4834 intel_crtc
->active
= false;
4835 intel_update_watermarks(crtc
);
4837 mutex_lock(&dev
->struct_mutex
);
4838 intel_update_fbc(dev
);
4839 mutex_unlock(&dev
->struct_mutex
);
4842 static void i9xx_crtc_off(struct drm_crtc
*crtc
)
4846 static void intel_crtc_update_sarea(struct drm_crtc
*crtc
,
4849 struct drm_device
*dev
= crtc
->dev
;
4850 struct drm_i915_master_private
*master_priv
;
4851 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4852 int pipe
= intel_crtc
->pipe
;
4854 if (!dev
->primary
->master
)
4857 master_priv
= dev
->primary
->master
->driver_priv
;
4858 if (!master_priv
->sarea_priv
)
4863 master_priv
->sarea_priv
->pipeA_w
= enabled
? crtc
->mode
.hdisplay
: 0;
4864 master_priv
->sarea_priv
->pipeA_h
= enabled
? crtc
->mode
.vdisplay
: 0;
4867 master_priv
->sarea_priv
->pipeB_w
= enabled
? crtc
->mode
.hdisplay
: 0;
4868 master_priv
->sarea_priv
->pipeB_h
= enabled
? crtc
->mode
.vdisplay
: 0;
4871 DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe
));
4876 /* Master function to enable/disable CRTC and corresponding power wells */
4877 void intel_crtc_control(struct drm_crtc
*crtc
, bool enable
)
4879 struct drm_device
*dev
= crtc
->dev
;
4880 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4881 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4882 enum intel_display_power_domain domain
;
4883 unsigned long domains
;
4886 if (!intel_crtc
->active
) {
4887 domains
= get_crtc_power_domains(crtc
);
4888 for_each_power_domain(domain
, domains
)
4889 intel_display_power_get(dev_priv
, domain
);
4890 intel_crtc
->enabled_power_domains
= domains
;
4892 dev_priv
->display
.crtc_enable(crtc
);
4895 if (intel_crtc
->active
) {
4896 dev_priv
->display
.crtc_disable(crtc
);
4898 domains
= intel_crtc
->enabled_power_domains
;
4899 for_each_power_domain(domain
, domains
)
4900 intel_display_power_put(dev_priv
, domain
);
4901 intel_crtc
->enabled_power_domains
= 0;
4907 * Sets the power management mode of the pipe and plane.
4909 void intel_crtc_update_dpms(struct drm_crtc
*crtc
)
4911 struct drm_device
*dev
= crtc
->dev
;
4912 struct intel_encoder
*intel_encoder
;
4913 bool enable
= false;
4915 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
)
4916 enable
|= intel_encoder
->connectors_active
;
4918 intel_crtc_control(crtc
, enable
);
4920 intel_crtc_update_sarea(crtc
, enable
);
4923 static void intel_crtc_disable(struct drm_crtc
*crtc
)
4925 struct drm_device
*dev
= crtc
->dev
;
4926 struct drm_connector
*connector
;
4927 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4928 struct drm_i915_gem_object
*old_obj
= intel_fb_obj(crtc
->primary
->fb
);
4929 enum pipe pipe
= to_intel_crtc(crtc
)->pipe
;
4931 /* crtc should still be enabled when we disable it. */
4932 WARN_ON(!crtc
->enabled
);
4934 dev_priv
->display
.crtc_disable(crtc
);
4935 intel_crtc_update_sarea(crtc
, false);
4936 dev_priv
->display
.off(crtc
);
4938 if (crtc
->primary
->fb
) {
4939 mutex_lock(&dev
->struct_mutex
);
4940 intel_unpin_fb_obj(old_obj
);
4941 i915_gem_track_fb(old_obj
, NULL
,
4942 INTEL_FRONTBUFFER_PRIMARY(pipe
));
4943 mutex_unlock(&dev
->struct_mutex
);
4944 crtc
->primary
->fb
= NULL
;
4947 /* Update computed state. */
4948 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
4949 if (!connector
->encoder
|| !connector
->encoder
->crtc
)
4952 if (connector
->encoder
->crtc
!= crtc
)
4955 connector
->dpms
= DRM_MODE_DPMS_OFF
;
4956 to_intel_encoder(connector
->encoder
)->connectors_active
= false;
4960 void intel_encoder_destroy(struct drm_encoder
*encoder
)
4962 struct intel_encoder
*intel_encoder
= to_intel_encoder(encoder
);
4964 drm_encoder_cleanup(encoder
);
4965 kfree(intel_encoder
);
4968 /* Simple dpms helper for encoders with just one connector, no cloning and only
4969 * one kind of off state. It clamps all !ON modes to fully OFF and changes the
4970 * state of the entire output pipe. */
4971 static void intel_encoder_dpms(struct intel_encoder
*encoder
, int mode
)
4973 if (mode
== DRM_MODE_DPMS_ON
) {
4974 encoder
->connectors_active
= true;
4976 intel_crtc_update_dpms(encoder
->base
.crtc
);
4978 encoder
->connectors_active
= false;
4980 intel_crtc_update_dpms(encoder
->base
.crtc
);
4984 /* Cross check the actual hw state with our own modeset state tracking (and it's
4985 * internal consistency). */
4986 static void intel_connector_check_state(struct intel_connector
*connector
)
4988 if (connector
->get_hw_state(connector
)) {
4989 struct intel_encoder
*encoder
= connector
->encoder
;
4990 struct drm_crtc
*crtc
;
4991 bool encoder_enabled
;
4994 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
4995 connector
->base
.base
.id
,
4996 connector
->base
.name
);
4998 /* there is no real hw state for MST connectors */
4999 if (connector
->mst_port
)
5002 WARN(connector
->base
.dpms
== DRM_MODE_DPMS_OFF
,
5003 "wrong connector dpms state\n");
5004 WARN(connector
->base
.encoder
!= &encoder
->base
,
5005 "active connector not linked to encoder\n");
5008 WARN(!encoder
->connectors_active
,
5009 "encoder->connectors_active not set\n");
5011 encoder_enabled
= encoder
->get_hw_state(encoder
, &pipe
);
5012 WARN(!encoder_enabled
, "encoder not enabled\n");
5013 if (WARN_ON(!encoder
->base
.crtc
))
5016 crtc
= encoder
->base
.crtc
;
5018 WARN(!crtc
->enabled
, "crtc not enabled\n");
5019 WARN(!to_intel_crtc(crtc
)->active
, "crtc not active\n");
5020 WARN(pipe
!= to_intel_crtc(crtc
)->pipe
,
5021 "encoder active on the wrong pipe\n");
5026 /* Even simpler default implementation, if there's really no special case to
5028 void intel_connector_dpms(struct drm_connector
*connector
, int mode
)
5030 /* All the simple cases only support two dpms states. */
5031 if (mode
!= DRM_MODE_DPMS_ON
)
5032 mode
= DRM_MODE_DPMS_OFF
;
5034 if (mode
== connector
->dpms
)
5037 connector
->dpms
= mode
;
5039 /* Only need to change hw state when actually enabled */
5040 if (connector
->encoder
)
5041 intel_encoder_dpms(to_intel_encoder(connector
->encoder
), mode
);
5043 intel_modeset_check_state(connector
->dev
);
5046 /* Simple connector->get_hw_state implementation for encoders that support only
5047 * one connector and no cloning and hence the encoder state determines the state
5048 * of the connector. */
5049 bool intel_connector_get_hw_state(struct intel_connector
*connector
)
5052 struct intel_encoder
*encoder
= connector
->encoder
;
5054 return encoder
->get_hw_state(encoder
, &pipe
);
5057 static bool ironlake_check_fdi_lanes(struct drm_device
*dev
, enum pipe pipe
,
5058 struct intel_crtc_config
*pipe_config
)
5060 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5061 struct intel_crtc
*pipe_B_crtc
=
5062 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[PIPE_B
]);
5064 DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n",
5065 pipe_name(pipe
), pipe_config
->fdi_lanes
);
5066 if (pipe_config
->fdi_lanes
> 4) {
5067 DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n",
5068 pipe_name(pipe
), pipe_config
->fdi_lanes
);
5072 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
5073 if (pipe_config
->fdi_lanes
> 2) {
5074 DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n",
5075 pipe_config
->fdi_lanes
);
5082 if (INTEL_INFO(dev
)->num_pipes
== 2)
5085 /* Ivybridge 3 pipe is really complicated */
5090 if (dev_priv
->pipe_to_crtc_mapping
[PIPE_C
]->enabled
&&
5091 pipe_config
->fdi_lanes
> 2) {
5092 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
5093 pipe_name(pipe
), pipe_config
->fdi_lanes
);
5098 if (!pipe_has_enabled_pch(pipe_B_crtc
) ||
5099 pipe_B_crtc
->config
.fdi_lanes
<= 2) {
5100 if (pipe_config
->fdi_lanes
> 2) {
5101 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
5102 pipe_name(pipe
), pipe_config
->fdi_lanes
);
5106 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
5116 static int ironlake_fdi_compute_config(struct intel_crtc
*intel_crtc
,
5117 struct intel_crtc_config
*pipe_config
)
5119 struct drm_device
*dev
= intel_crtc
->base
.dev
;
5120 struct drm_display_mode
*adjusted_mode
= &pipe_config
->adjusted_mode
;
5121 int lane
, link_bw
, fdi_dotclock
;
5122 bool setup_ok
, needs_recompute
= false;
5125 /* FDI is a binary signal running at ~2.7GHz, encoding
5126 * each output octet as 10 bits. The actual frequency
5127 * is stored as a divider into a 100MHz clock, and the
5128 * mode pixel clock is stored in units of 1KHz.
5129 * Hence the bw of each lane in terms of the mode signal
5132 link_bw
= intel_fdi_link_freq(dev
) * MHz(100)/KHz(1)/10;
5134 fdi_dotclock
= adjusted_mode
->crtc_clock
;
5136 lane
= ironlake_get_lanes_required(fdi_dotclock
, link_bw
,
5137 pipe_config
->pipe_bpp
);
5139 pipe_config
->fdi_lanes
= lane
;
5141 intel_link_compute_m_n(pipe_config
->pipe_bpp
, lane
, fdi_dotclock
,
5142 link_bw
, &pipe_config
->fdi_m_n
);
5144 setup_ok
= ironlake_check_fdi_lanes(intel_crtc
->base
.dev
,
5145 intel_crtc
->pipe
, pipe_config
);
5146 if (!setup_ok
&& pipe_config
->pipe_bpp
> 6*3) {
5147 pipe_config
->pipe_bpp
-= 2*3;
5148 DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n",
5149 pipe_config
->pipe_bpp
);
5150 needs_recompute
= true;
5151 pipe_config
->bw_constrained
= true;
5156 if (needs_recompute
)
5159 return setup_ok
? 0 : -EINVAL
;
5162 static void hsw_compute_ips_config(struct intel_crtc
*crtc
,
5163 struct intel_crtc_config
*pipe_config
)
5165 pipe_config
->ips_enabled
= i915
.enable_ips
&&
5166 hsw_crtc_supports_ips(crtc
) &&
5167 pipe_config
->pipe_bpp
<= 24;
5170 static int intel_crtc_compute_config(struct intel_crtc
*crtc
,
5171 struct intel_crtc_config
*pipe_config
)
5173 struct drm_device
*dev
= crtc
->base
.dev
;
5174 struct drm_display_mode
*adjusted_mode
= &pipe_config
->adjusted_mode
;
5176 /* FIXME should check pixel clock limits on all platforms */
5177 if (INTEL_INFO(dev
)->gen
< 4) {
5178 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5180 dev_priv
->display
.get_display_clock_speed(dev
);
5183 * Enable pixel doubling when the dot clock
5184 * is > 90% of the (display) core speed.
5186 * GDG double wide on either pipe,
5187 * otherwise pipe A only.
5189 if ((crtc
->pipe
== PIPE_A
|| IS_I915G(dev
)) &&
5190 adjusted_mode
->crtc_clock
> clock_limit
* 9 / 10) {
5192 pipe_config
->double_wide
= true;
5195 if (adjusted_mode
->crtc_clock
> clock_limit
* 9 / 10)
5200 * Pipe horizontal size must be even in:
5202 * - LVDS dual channel mode
5203 * - Double wide pipe
5205 if ((intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
) &&
5206 intel_is_dual_link_lvds(dev
)) || pipe_config
->double_wide
)
5207 pipe_config
->pipe_src_w
&= ~1;
5209 /* Cantiga+ cannot handle modes with a hsync front porch of 0.
5210 * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw.
5212 if ((INTEL_INFO(dev
)->gen
> 4 || IS_G4X(dev
)) &&
5213 adjusted_mode
->hsync_start
== adjusted_mode
->hdisplay
)
5216 if ((IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) && pipe_config
->pipe_bpp
> 10*3) {
5217 pipe_config
->pipe_bpp
= 10*3; /* 12bpc is gen5+ */
5218 } else if (INTEL_INFO(dev
)->gen
<= 4 && pipe_config
->pipe_bpp
> 8*3) {
5219 /* only a 8bpc pipe, with 6bpc dither through the panel fitter
5221 pipe_config
->pipe_bpp
= 8*3;
5225 hsw_compute_ips_config(crtc
, pipe_config
);
5228 * XXX: PCH/WRPLL clock sharing is done in ->mode_set, so make sure the
5229 * old clock survives for now.
5231 if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
) || HAS_DDI(dev
))
5232 pipe_config
->shared_dpll
= crtc
->config
.shared_dpll
;
5234 if (pipe_config
->has_pch_encoder
)
5235 return ironlake_fdi_compute_config(crtc
, pipe_config
);
5240 static int valleyview_get_display_clock_speed(struct drm_device
*dev
)
5242 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5243 int vco
= valleyview_get_vco(dev_priv
);
5247 /* FIXME: Punit isn't quite ready yet */
5248 if (IS_CHERRYVIEW(dev
))
5251 mutex_lock(&dev_priv
->dpio_lock
);
5252 val
= vlv_cck_read(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
);
5253 mutex_unlock(&dev_priv
->dpio_lock
);
5255 divider
= val
& DISPLAY_FREQUENCY_VALUES
;
5257 WARN((val
& DISPLAY_FREQUENCY_STATUS
) !=
5258 (divider
<< DISPLAY_FREQUENCY_STATUS_SHIFT
),
5259 "cdclk change in progress\n");
5261 return DIV_ROUND_CLOSEST(vco
<< 1, divider
+ 1);
5264 static int i945_get_display_clock_speed(struct drm_device
*dev
)
5269 static int i915_get_display_clock_speed(struct drm_device
*dev
)
5274 static int i9xx_misc_get_display_clock_speed(struct drm_device
*dev
)
5279 static int pnv_get_display_clock_speed(struct drm_device
*dev
)
5283 pci_read_config_word(dev
->pdev
, GCFGC
, &gcfgc
);
5285 switch (gcfgc
& GC_DISPLAY_CLOCK_MASK
) {
5286 case GC_DISPLAY_CLOCK_267_MHZ_PNV
:
5288 case GC_DISPLAY_CLOCK_333_MHZ_PNV
:
5290 case GC_DISPLAY_CLOCK_444_MHZ_PNV
:
5292 case GC_DISPLAY_CLOCK_200_MHZ_PNV
:
5295 DRM_ERROR("Unknown pnv display core clock 0x%04x\n", gcfgc
);
5296 case GC_DISPLAY_CLOCK_133_MHZ_PNV
:
5298 case GC_DISPLAY_CLOCK_167_MHZ_PNV
:
5303 static int i915gm_get_display_clock_speed(struct drm_device
*dev
)
5307 pci_read_config_word(dev
->pdev
, GCFGC
, &gcfgc
);
5309 if (gcfgc
& GC_LOW_FREQUENCY_ENABLE
)
5312 switch (gcfgc
& GC_DISPLAY_CLOCK_MASK
) {
5313 case GC_DISPLAY_CLOCK_333_MHZ
:
5316 case GC_DISPLAY_CLOCK_190_200_MHZ
:
5322 static int i865_get_display_clock_speed(struct drm_device
*dev
)
5327 static int i855_get_display_clock_speed(struct drm_device
*dev
)
5330 /* Assume that the hardware is in the high speed state. This
5331 * should be the default.
5333 switch (hpllcc
& GC_CLOCK_CONTROL_MASK
) {
5334 case GC_CLOCK_133_200
:
5335 case GC_CLOCK_100_200
:
5337 case GC_CLOCK_166_250
:
5339 case GC_CLOCK_100_133
:
5343 /* Shouldn't happen */
5347 static int i830_get_display_clock_speed(struct drm_device
*dev
)
5353 intel_reduce_m_n_ratio(uint32_t *num
, uint32_t *den
)
5355 while (*num
> DATA_LINK_M_N_MASK
||
5356 *den
> DATA_LINK_M_N_MASK
) {
5362 static void compute_m_n(unsigned int m
, unsigned int n
,
5363 uint32_t *ret_m
, uint32_t *ret_n
)
5365 *ret_n
= min_t(unsigned int, roundup_pow_of_two(n
), DATA_LINK_N_MAX
);
5366 *ret_m
= div_u64((uint64_t) m
* *ret_n
, n
);
5367 intel_reduce_m_n_ratio(ret_m
, ret_n
);
5371 intel_link_compute_m_n(int bits_per_pixel
, int nlanes
,
5372 int pixel_clock
, int link_clock
,
5373 struct intel_link_m_n
*m_n
)
5377 compute_m_n(bits_per_pixel
* pixel_clock
,
5378 link_clock
* nlanes
* 8,
5379 &m_n
->gmch_m
, &m_n
->gmch_n
);
5381 compute_m_n(pixel_clock
, link_clock
,
5382 &m_n
->link_m
, &m_n
->link_n
);
5385 static inline bool intel_panel_use_ssc(struct drm_i915_private
*dev_priv
)
5387 if (i915
.panel_use_ssc
>= 0)
5388 return i915
.panel_use_ssc
!= 0;
5389 return dev_priv
->vbt
.lvds_use_ssc
5390 && !(dev_priv
->quirks
& QUIRK_LVDS_SSC_DISABLE
);
5393 static int i9xx_get_refclk(struct drm_crtc
*crtc
, int num_connectors
)
5395 struct drm_device
*dev
= crtc
->dev
;
5396 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5399 if (IS_VALLEYVIEW(dev
)) {
5401 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) &&
5402 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2) {
5403 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
5404 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk
);
5405 } else if (!IS_GEN2(dev
)) {
5414 static uint32_t pnv_dpll_compute_fp(struct dpll
*dpll
)
5416 return (1 << dpll
->n
) << 16 | dpll
->m2
;
5419 static uint32_t i9xx_dpll_compute_fp(struct dpll
*dpll
)
5421 return dpll
->n
<< 16 | dpll
->m1
<< 8 | dpll
->m2
;
5424 static void i9xx_update_pll_dividers(struct intel_crtc
*crtc
,
5425 intel_clock_t
*reduced_clock
)
5427 struct drm_device
*dev
= crtc
->base
.dev
;
5430 if (IS_PINEVIEW(dev
)) {
5431 fp
= pnv_dpll_compute_fp(&crtc
->config
.dpll
);
5433 fp2
= pnv_dpll_compute_fp(reduced_clock
);
5435 fp
= i9xx_dpll_compute_fp(&crtc
->config
.dpll
);
5437 fp2
= i9xx_dpll_compute_fp(reduced_clock
);
5440 crtc
->config
.dpll_hw_state
.fp0
= fp
;
5442 crtc
->lowfreq_avail
= false;
5443 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
) &&
5444 reduced_clock
&& i915
.powersave
) {
5445 crtc
->config
.dpll_hw_state
.fp1
= fp2
;
5446 crtc
->lowfreq_avail
= true;
5448 crtc
->config
.dpll_hw_state
.fp1
= fp
;
5452 static void vlv_pllb_recal_opamp(struct drm_i915_private
*dev_priv
, enum pipe
5458 * PLLB opamp always calibrates to max value of 0x3f, force enable it
5459 * and set it to a reasonable value instead.
5461 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW9(1));
5462 reg_val
&= 0xffffff00;
5463 reg_val
|= 0x00000030;
5464 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9(1), reg_val
);
5466 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_REF_DW13
);
5467 reg_val
&= 0x8cffffff;
5468 reg_val
= 0x8c000000;
5469 vlv_dpio_write(dev_priv
, pipe
, VLV_REF_DW13
, reg_val
);
5471 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW9(1));
5472 reg_val
&= 0xffffff00;
5473 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9(1), reg_val
);
5475 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_REF_DW13
);
5476 reg_val
&= 0x00ffffff;
5477 reg_val
|= 0xb0000000;
5478 vlv_dpio_write(dev_priv
, pipe
, VLV_REF_DW13
, reg_val
);
5481 static void intel_pch_transcoder_set_m_n(struct intel_crtc
*crtc
,
5482 struct intel_link_m_n
*m_n
)
5484 struct drm_device
*dev
= crtc
->base
.dev
;
5485 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5486 int pipe
= crtc
->pipe
;
5488 I915_WRITE(PCH_TRANS_DATA_M1(pipe
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
5489 I915_WRITE(PCH_TRANS_DATA_N1(pipe
), m_n
->gmch_n
);
5490 I915_WRITE(PCH_TRANS_LINK_M1(pipe
), m_n
->link_m
);
5491 I915_WRITE(PCH_TRANS_LINK_N1(pipe
), m_n
->link_n
);
5494 static void intel_cpu_transcoder_set_m_n(struct intel_crtc
*crtc
,
5495 struct intel_link_m_n
*m_n
,
5496 struct intel_link_m_n
*m2_n2
)
5498 struct drm_device
*dev
= crtc
->base
.dev
;
5499 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5500 int pipe
= crtc
->pipe
;
5501 enum transcoder transcoder
= crtc
->config
.cpu_transcoder
;
5503 if (INTEL_INFO(dev
)->gen
>= 5) {
5504 I915_WRITE(PIPE_DATA_M1(transcoder
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
5505 I915_WRITE(PIPE_DATA_N1(transcoder
), m_n
->gmch_n
);
5506 I915_WRITE(PIPE_LINK_M1(transcoder
), m_n
->link_m
);
5507 I915_WRITE(PIPE_LINK_N1(transcoder
), m_n
->link_n
);
5508 /* M2_N2 registers to be set only for gen < 8 (M2_N2 available
5509 * for gen < 8) and if DRRS is supported (to make sure the
5510 * registers are not unnecessarily accessed).
5512 if (m2_n2
&& INTEL_INFO(dev
)->gen
< 8 &&
5513 crtc
->config
.has_drrs
) {
5514 I915_WRITE(PIPE_DATA_M2(transcoder
),
5515 TU_SIZE(m2_n2
->tu
) | m2_n2
->gmch_m
);
5516 I915_WRITE(PIPE_DATA_N2(transcoder
), m2_n2
->gmch_n
);
5517 I915_WRITE(PIPE_LINK_M2(transcoder
), m2_n2
->link_m
);
5518 I915_WRITE(PIPE_LINK_N2(transcoder
), m2_n2
->link_n
);
5521 I915_WRITE(PIPE_DATA_M_G4X(pipe
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
5522 I915_WRITE(PIPE_DATA_N_G4X(pipe
), m_n
->gmch_n
);
5523 I915_WRITE(PIPE_LINK_M_G4X(pipe
), m_n
->link_m
);
5524 I915_WRITE(PIPE_LINK_N_G4X(pipe
), m_n
->link_n
);
5528 void intel_dp_set_m_n(struct intel_crtc
*crtc
)
5530 if (crtc
->config
.has_pch_encoder
)
5531 intel_pch_transcoder_set_m_n(crtc
, &crtc
->config
.dp_m_n
);
5533 intel_cpu_transcoder_set_m_n(crtc
, &crtc
->config
.dp_m_n
,
5534 &crtc
->config
.dp_m2_n2
);
5537 static void vlv_update_pll(struct intel_crtc
*crtc
)
5542 * Enable DPIO clock input. We should never disable the reference
5543 * clock for pipe B, since VGA hotplug / manual detection depends
5546 dpll
= DPLL_EXT_BUFFER_ENABLE_VLV
| DPLL_REFA_CLK_ENABLE_VLV
|
5547 DPLL_VGA_MODE_DIS
| DPLL_INTEGRATED_CLOCK_VLV
;
5548 /* We should never disable this, set it here for state tracking */
5549 if (crtc
->pipe
== PIPE_B
)
5550 dpll
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
5551 dpll
|= DPLL_VCO_ENABLE
;
5552 crtc
->config
.dpll_hw_state
.dpll
= dpll
;
5554 dpll_md
= (crtc
->config
.pixel_multiplier
- 1)
5555 << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
5556 crtc
->config
.dpll_hw_state
.dpll_md
= dpll_md
;
5559 static void vlv_prepare_pll(struct intel_crtc
*crtc
)
5561 struct drm_device
*dev
= crtc
->base
.dev
;
5562 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5563 int pipe
= crtc
->pipe
;
5565 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
;
5566 u32 coreclk
, reg_val
;
5568 mutex_lock(&dev_priv
->dpio_lock
);
5570 bestn
= crtc
->config
.dpll
.n
;
5571 bestm1
= crtc
->config
.dpll
.m1
;
5572 bestm2
= crtc
->config
.dpll
.m2
;
5573 bestp1
= crtc
->config
.dpll
.p1
;
5574 bestp2
= crtc
->config
.dpll
.p2
;
5576 /* See eDP HDMI DPIO driver vbios notes doc */
5578 /* PLL B needs special handling */
5580 vlv_pllb_recal_opamp(dev_priv
, pipe
);
5582 /* Set up Tx target for periodic Rcomp update */
5583 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9_BCAST
, 0x0100000f);
5585 /* Disable target IRef on PLL */
5586 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW8(pipe
));
5587 reg_val
&= 0x00ffffff;
5588 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW8(pipe
), reg_val
);
5590 /* Disable fast lock */
5591 vlv_dpio_write(dev_priv
, pipe
, VLV_CMN_DW0
, 0x610);
5593 /* Set idtafcrecal before PLL is enabled */
5594 mdiv
= ((bestm1
<< DPIO_M1DIV_SHIFT
) | (bestm2
& DPIO_M2DIV_MASK
));
5595 mdiv
|= ((bestp1
<< DPIO_P1_SHIFT
) | (bestp2
<< DPIO_P2_SHIFT
));
5596 mdiv
|= ((bestn
<< DPIO_N_SHIFT
));
5597 mdiv
|= (1 << DPIO_K_SHIFT
);
5600 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
5601 * but we don't support that).
5602 * Note: don't use the DAC post divider as it seems unstable.
5604 mdiv
|= (DPIO_POST_DIV_HDMIDP
<< DPIO_POST_DIV_SHIFT
);
5605 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW3(pipe
), mdiv
);
5607 mdiv
|= DPIO_ENABLE_CALIBRATION
;
5608 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW3(pipe
), mdiv
);
5610 /* Set HBR and RBR LPF coefficients */
5611 if (crtc
->config
.port_clock
== 162000 ||
5612 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_ANALOG
) ||
5613 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_HDMI
))
5614 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW10(pipe
),
5617 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW10(pipe
),
5620 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_EDP
) ||
5621 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DISPLAYPORT
)) {
5622 /* Use SSC source */
5624 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
5627 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
5629 } else { /* HDMI or VGA */
5630 /* Use bend source */
5632 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
5635 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
5639 coreclk
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW7(pipe
));
5640 coreclk
= (coreclk
& 0x0000ff00) | 0x01c00000;
5641 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DISPLAYPORT
) ||
5642 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_EDP
))
5643 coreclk
|= 0x01000000;
5644 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW7(pipe
), coreclk
);
5646 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW11(pipe
), 0x87871000);
5647 mutex_unlock(&dev_priv
->dpio_lock
);
5650 static void chv_update_pll(struct intel_crtc
*crtc
)
5652 crtc
->config
.dpll_hw_state
.dpll
= DPLL_SSC_REF_CLOCK_CHV
|
5653 DPLL_REFA_CLK_ENABLE_VLV
| DPLL_VGA_MODE_DIS
|
5655 if (crtc
->pipe
!= PIPE_A
)
5656 crtc
->config
.dpll_hw_state
.dpll
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
5658 crtc
->config
.dpll_hw_state
.dpll_md
=
5659 (crtc
->config
.pixel_multiplier
- 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
5662 static void chv_prepare_pll(struct intel_crtc
*crtc
)
5664 struct drm_device
*dev
= crtc
->base
.dev
;
5665 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5666 int pipe
= crtc
->pipe
;
5667 int dpll_reg
= DPLL(crtc
->pipe
);
5668 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
5669 u32 loopfilter
, intcoeff
;
5670 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
, bestm2_frac
;
5673 bestn
= crtc
->config
.dpll
.n
;
5674 bestm2_frac
= crtc
->config
.dpll
.m2
& 0x3fffff;
5675 bestm1
= crtc
->config
.dpll
.m1
;
5676 bestm2
= crtc
->config
.dpll
.m2
>> 22;
5677 bestp1
= crtc
->config
.dpll
.p1
;
5678 bestp2
= crtc
->config
.dpll
.p2
;
5681 * Enable Refclk and SSC
5683 I915_WRITE(dpll_reg
,
5684 crtc
->config
.dpll_hw_state
.dpll
& ~DPLL_VCO_ENABLE
);
5686 mutex_lock(&dev_priv
->dpio_lock
);
5688 /* p1 and p2 divider */
5689 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW13(port
),
5690 5 << DPIO_CHV_S1_DIV_SHIFT
|
5691 bestp1
<< DPIO_CHV_P1_DIV_SHIFT
|
5692 bestp2
<< DPIO_CHV_P2_DIV_SHIFT
|
5693 1 << DPIO_CHV_K_DIV_SHIFT
);
5695 /* Feedback post-divider - m2 */
5696 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW0(port
), bestm2
);
5698 /* Feedback refclk divider - n and m1 */
5699 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW1(port
),
5700 DPIO_CHV_M1_DIV_BY_2
|
5701 1 << DPIO_CHV_N_DIV_SHIFT
);
5703 /* M2 fraction division */
5704 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW2(port
), bestm2_frac
);
5706 /* M2 fraction division enable */
5707 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW3(port
),
5708 DPIO_CHV_FRAC_DIV_EN
|
5709 (2 << DPIO_CHV_FEEDFWD_GAIN_SHIFT
));
5712 refclk
= i9xx_get_refclk(&crtc
->base
, 0);
5713 loopfilter
= 5 << DPIO_CHV_PROP_COEFF_SHIFT
|
5714 2 << DPIO_CHV_GAIN_CTRL_SHIFT
;
5715 if (refclk
== 100000)
5717 else if (refclk
== 38400)
5721 loopfilter
|= intcoeff
<< DPIO_CHV_INT_COEFF_SHIFT
;
5722 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW6(port
), loopfilter
);
5725 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
),
5726 vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
)) |
5729 mutex_unlock(&dev_priv
->dpio_lock
);
5732 static void i9xx_update_pll(struct intel_crtc
*crtc
,
5733 intel_clock_t
*reduced_clock
,
5736 struct drm_device
*dev
= crtc
->base
.dev
;
5737 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5740 struct dpll
*clock
= &crtc
->config
.dpll
;
5742 i9xx_update_pll_dividers(crtc
, reduced_clock
);
5744 is_sdvo
= intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_SDVO
) ||
5745 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_HDMI
);
5747 dpll
= DPLL_VGA_MODE_DIS
;
5749 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
))
5750 dpll
|= DPLLB_MODE_LVDS
;
5752 dpll
|= DPLLB_MODE_DAC_SERIAL
;
5754 if (IS_I945G(dev
) || IS_I945GM(dev
) || IS_G33(dev
)) {
5755 dpll
|= (crtc
->config
.pixel_multiplier
- 1)
5756 << SDVO_MULTIPLIER_SHIFT_HIRES
;
5760 dpll
|= DPLL_SDVO_HIGH_SPEED
;
5762 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DISPLAYPORT
))
5763 dpll
|= DPLL_SDVO_HIGH_SPEED
;
5765 /* compute bitmask from p1 value */
5766 if (IS_PINEVIEW(dev
))
5767 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
;
5769 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
5770 if (IS_G4X(dev
) && reduced_clock
)
5771 dpll
|= (1 << (reduced_clock
->p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
5773 switch (clock
->p2
) {
5775 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
5778 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
5781 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
5784 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
5787 if (INTEL_INFO(dev
)->gen
>= 4)
5788 dpll
|= (6 << PLL_LOAD_PULSE_PHASE_SHIFT
);
5790 if (crtc
->config
.sdvo_tv_clock
)
5791 dpll
|= PLL_REF_INPUT_TVCLKINBC
;
5792 else if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
) &&
5793 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
5794 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
5796 dpll
|= PLL_REF_INPUT_DREFCLK
;
5798 dpll
|= DPLL_VCO_ENABLE
;
5799 crtc
->config
.dpll_hw_state
.dpll
= dpll
;
5801 if (INTEL_INFO(dev
)->gen
>= 4) {
5802 u32 dpll_md
= (crtc
->config
.pixel_multiplier
- 1)
5803 << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
5804 crtc
->config
.dpll_hw_state
.dpll_md
= dpll_md
;
5808 static void i8xx_update_pll(struct intel_crtc
*crtc
,
5809 intel_clock_t
*reduced_clock
,
5812 struct drm_device
*dev
= crtc
->base
.dev
;
5813 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5815 struct dpll
*clock
= &crtc
->config
.dpll
;
5817 i9xx_update_pll_dividers(crtc
, reduced_clock
);
5819 dpll
= DPLL_VGA_MODE_DIS
;
5821 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
)) {
5822 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
5825 dpll
|= PLL_P1_DIVIDE_BY_TWO
;
5827 dpll
|= (clock
->p1
- 2) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
5829 dpll
|= PLL_P2_DIVIDE_BY_4
;
5832 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DVO
))
5833 dpll
|= DPLL_DVO_2X_MODE
;
5835 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
) &&
5836 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
5837 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
5839 dpll
|= PLL_REF_INPUT_DREFCLK
;
5841 dpll
|= DPLL_VCO_ENABLE
;
5842 crtc
->config
.dpll_hw_state
.dpll
= dpll
;
5845 static void intel_set_pipe_timings(struct intel_crtc
*intel_crtc
)
5847 struct drm_device
*dev
= intel_crtc
->base
.dev
;
5848 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5849 enum pipe pipe
= intel_crtc
->pipe
;
5850 enum transcoder cpu_transcoder
= intel_crtc
->config
.cpu_transcoder
;
5851 struct drm_display_mode
*adjusted_mode
=
5852 &intel_crtc
->config
.adjusted_mode
;
5853 uint32_t crtc_vtotal
, crtc_vblank_end
;
5856 /* We need to be careful not to changed the adjusted mode, for otherwise
5857 * the hw state checker will get angry at the mismatch. */
5858 crtc_vtotal
= adjusted_mode
->crtc_vtotal
;
5859 crtc_vblank_end
= adjusted_mode
->crtc_vblank_end
;
5861 if (adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
) {
5862 /* the chip adds 2 halflines automatically */
5864 crtc_vblank_end
-= 1;
5866 if (intel_pipe_has_type(&intel_crtc
->base
, INTEL_OUTPUT_SDVO
))
5867 vsyncshift
= (adjusted_mode
->crtc_htotal
- 1) / 2;
5869 vsyncshift
= adjusted_mode
->crtc_hsync_start
-
5870 adjusted_mode
->crtc_htotal
/ 2;
5872 vsyncshift
+= adjusted_mode
->crtc_htotal
;
5875 if (INTEL_INFO(dev
)->gen
> 3)
5876 I915_WRITE(VSYNCSHIFT(cpu_transcoder
), vsyncshift
);
5878 I915_WRITE(HTOTAL(cpu_transcoder
),
5879 (adjusted_mode
->crtc_hdisplay
- 1) |
5880 ((adjusted_mode
->crtc_htotal
- 1) << 16));
5881 I915_WRITE(HBLANK(cpu_transcoder
),
5882 (adjusted_mode
->crtc_hblank_start
- 1) |
5883 ((adjusted_mode
->crtc_hblank_end
- 1) << 16));
5884 I915_WRITE(HSYNC(cpu_transcoder
),
5885 (adjusted_mode
->crtc_hsync_start
- 1) |
5886 ((adjusted_mode
->crtc_hsync_end
- 1) << 16));
5888 I915_WRITE(VTOTAL(cpu_transcoder
),
5889 (adjusted_mode
->crtc_vdisplay
- 1) |
5890 ((crtc_vtotal
- 1) << 16));
5891 I915_WRITE(VBLANK(cpu_transcoder
),
5892 (adjusted_mode
->crtc_vblank_start
- 1) |
5893 ((crtc_vblank_end
- 1) << 16));
5894 I915_WRITE(VSYNC(cpu_transcoder
),
5895 (adjusted_mode
->crtc_vsync_start
- 1) |
5896 ((adjusted_mode
->crtc_vsync_end
- 1) << 16));
5898 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
5899 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
5900 * documented on the DDI_FUNC_CTL register description, EDP Input Select
5902 if (IS_HASWELL(dev
) && cpu_transcoder
== TRANSCODER_EDP
&&
5903 (pipe
== PIPE_B
|| pipe
== PIPE_C
))
5904 I915_WRITE(VTOTAL(pipe
), I915_READ(VTOTAL(cpu_transcoder
)));
5906 /* pipesrc controls the size that is scaled from, which should
5907 * always be the user's requested size.
5909 I915_WRITE(PIPESRC(pipe
),
5910 ((intel_crtc
->config
.pipe_src_w
- 1) << 16) |
5911 (intel_crtc
->config
.pipe_src_h
- 1));
5914 static void intel_get_pipe_timings(struct intel_crtc
*crtc
,
5915 struct intel_crtc_config
*pipe_config
)
5917 struct drm_device
*dev
= crtc
->base
.dev
;
5918 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5919 enum transcoder cpu_transcoder
= pipe_config
->cpu_transcoder
;
5922 tmp
= I915_READ(HTOTAL(cpu_transcoder
));
5923 pipe_config
->adjusted_mode
.crtc_hdisplay
= (tmp
& 0xffff) + 1;
5924 pipe_config
->adjusted_mode
.crtc_htotal
= ((tmp
>> 16) & 0xffff) + 1;
5925 tmp
= I915_READ(HBLANK(cpu_transcoder
));
5926 pipe_config
->adjusted_mode
.crtc_hblank_start
= (tmp
& 0xffff) + 1;
5927 pipe_config
->adjusted_mode
.crtc_hblank_end
= ((tmp
>> 16) & 0xffff) + 1;
5928 tmp
= I915_READ(HSYNC(cpu_transcoder
));
5929 pipe_config
->adjusted_mode
.crtc_hsync_start
= (tmp
& 0xffff) + 1;
5930 pipe_config
->adjusted_mode
.crtc_hsync_end
= ((tmp
>> 16) & 0xffff) + 1;
5932 tmp
= I915_READ(VTOTAL(cpu_transcoder
));
5933 pipe_config
->adjusted_mode
.crtc_vdisplay
= (tmp
& 0xffff) + 1;
5934 pipe_config
->adjusted_mode
.crtc_vtotal
= ((tmp
>> 16) & 0xffff) + 1;
5935 tmp
= I915_READ(VBLANK(cpu_transcoder
));
5936 pipe_config
->adjusted_mode
.crtc_vblank_start
= (tmp
& 0xffff) + 1;
5937 pipe_config
->adjusted_mode
.crtc_vblank_end
= ((tmp
>> 16) & 0xffff) + 1;
5938 tmp
= I915_READ(VSYNC(cpu_transcoder
));
5939 pipe_config
->adjusted_mode
.crtc_vsync_start
= (tmp
& 0xffff) + 1;
5940 pipe_config
->adjusted_mode
.crtc_vsync_end
= ((tmp
>> 16) & 0xffff) + 1;
5942 if (I915_READ(PIPECONF(cpu_transcoder
)) & PIPECONF_INTERLACE_MASK
) {
5943 pipe_config
->adjusted_mode
.flags
|= DRM_MODE_FLAG_INTERLACE
;
5944 pipe_config
->adjusted_mode
.crtc_vtotal
+= 1;
5945 pipe_config
->adjusted_mode
.crtc_vblank_end
+= 1;
5948 tmp
= I915_READ(PIPESRC(crtc
->pipe
));
5949 pipe_config
->pipe_src_h
= (tmp
& 0xffff) + 1;
5950 pipe_config
->pipe_src_w
= ((tmp
>> 16) & 0xffff) + 1;
5952 pipe_config
->requested_mode
.vdisplay
= pipe_config
->pipe_src_h
;
5953 pipe_config
->requested_mode
.hdisplay
= pipe_config
->pipe_src_w
;
5956 void intel_mode_from_pipe_config(struct drm_display_mode
*mode
,
5957 struct intel_crtc_config
*pipe_config
)
5959 mode
->hdisplay
= pipe_config
->adjusted_mode
.crtc_hdisplay
;
5960 mode
->htotal
= pipe_config
->adjusted_mode
.crtc_htotal
;
5961 mode
->hsync_start
= pipe_config
->adjusted_mode
.crtc_hsync_start
;
5962 mode
->hsync_end
= pipe_config
->adjusted_mode
.crtc_hsync_end
;
5964 mode
->vdisplay
= pipe_config
->adjusted_mode
.crtc_vdisplay
;
5965 mode
->vtotal
= pipe_config
->adjusted_mode
.crtc_vtotal
;
5966 mode
->vsync_start
= pipe_config
->adjusted_mode
.crtc_vsync_start
;
5967 mode
->vsync_end
= pipe_config
->adjusted_mode
.crtc_vsync_end
;
5969 mode
->flags
= pipe_config
->adjusted_mode
.flags
;
5971 mode
->clock
= pipe_config
->adjusted_mode
.crtc_clock
;
5972 mode
->flags
|= pipe_config
->adjusted_mode
.flags
;
5975 static void i9xx_set_pipeconf(struct intel_crtc
*intel_crtc
)
5977 struct drm_device
*dev
= intel_crtc
->base
.dev
;
5978 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5983 if (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
&&
5984 I915_READ(PIPECONF(intel_crtc
->pipe
)) & PIPECONF_ENABLE
)
5985 pipeconf
|= PIPECONF_ENABLE
;
5987 if (intel_crtc
->config
.double_wide
)
5988 pipeconf
|= PIPECONF_DOUBLE_WIDE
;
5990 /* only g4x and later have fancy bpc/dither controls */
5991 if (IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) {
5992 /* Bspec claims that we can't use dithering for 30bpp pipes. */
5993 if (intel_crtc
->config
.dither
&& intel_crtc
->config
.pipe_bpp
!= 30)
5994 pipeconf
|= PIPECONF_DITHER_EN
|
5995 PIPECONF_DITHER_TYPE_SP
;
5997 switch (intel_crtc
->config
.pipe_bpp
) {
5999 pipeconf
|= PIPECONF_6BPC
;
6002 pipeconf
|= PIPECONF_8BPC
;
6005 pipeconf
|= PIPECONF_10BPC
;
6008 /* Case prevented by intel_choose_pipe_bpp_dither. */
6013 if (HAS_PIPE_CXSR(dev
)) {
6014 if (intel_crtc
->lowfreq_avail
) {
6015 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
6016 pipeconf
|= PIPECONF_CXSR_DOWNCLOCK
;
6018 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
6022 if (intel_crtc
->config
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
) {
6023 if (INTEL_INFO(dev
)->gen
< 4 ||
6024 intel_pipe_has_type(&intel_crtc
->base
, INTEL_OUTPUT_SDVO
))
6025 pipeconf
|= PIPECONF_INTERLACE_W_FIELD_INDICATION
;
6027 pipeconf
|= PIPECONF_INTERLACE_W_SYNC_SHIFT
;
6029 pipeconf
|= PIPECONF_PROGRESSIVE
;
6031 if (IS_VALLEYVIEW(dev
) && intel_crtc
->config
.limited_color_range
)
6032 pipeconf
|= PIPECONF_COLOR_RANGE_SELECT
;
6034 I915_WRITE(PIPECONF(intel_crtc
->pipe
), pipeconf
);
6035 POSTING_READ(PIPECONF(intel_crtc
->pipe
));
6038 static int i9xx_crtc_mode_set(struct drm_crtc
*crtc
,
6040 struct drm_framebuffer
*fb
)
6042 struct drm_device
*dev
= crtc
->dev
;
6043 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6044 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6045 int refclk
, num_connectors
= 0;
6046 intel_clock_t clock
, reduced_clock
;
6047 bool ok
, has_reduced_clock
= false;
6048 bool is_lvds
= false, is_dsi
= false;
6049 struct intel_encoder
*encoder
;
6050 const intel_limit_t
*limit
;
6052 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
6053 switch (encoder
->type
) {
6054 case INTEL_OUTPUT_LVDS
:
6057 case INTEL_OUTPUT_DSI
:
6068 if (!intel_crtc
->config
.clock_set
) {
6069 refclk
= i9xx_get_refclk(crtc
, num_connectors
);
6072 * Returns a set of divisors for the desired target clock with
6073 * the given refclk, or FALSE. The returned values represent
6074 * the clock equation: reflck * (5 * (m1 + 2) + (m2 + 2)) / (n +
6077 limit
= intel_limit(crtc
, refclk
);
6078 ok
= dev_priv
->display
.find_dpll(limit
, crtc
,
6079 intel_crtc
->config
.port_clock
,
6080 refclk
, NULL
, &clock
);
6082 DRM_ERROR("Couldn't find PLL settings for mode!\n");
6086 if (is_lvds
&& dev_priv
->lvds_downclock_avail
) {
6088 * Ensure we match the reduced clock's P to the target
6089 * clock. If the clocks don't match, we can't switch
6090 * the display clock by using the FP0/FP1. In such case
6091 * we will disable the LVDS downclock feature.
6094 dev_priv
->display
.find_dpll(limit
, crtc
,
6095 dev_priv
->lvds_downclock
,
6099 /* Compat-code for transition, will disappear. */
6100 intel_crtc
->config
.dpll
.n
= clock
.n
;
6101 intel_crtc
->config
.dpll
.m1
= clock
.m1
;
6102 intel_crtc
->config
.dpll
.m2
= clock
.m2
;
6103 intel_crtc
->config
.dpll
.p1
= clock
.p1
;
6104 intel_crtc
->config
.dpll
.p2
= clock
.p2
;
6108 i8xx_update_pll(intel_crtc
,
6109 has_reduced_clock
? &reduced_clock
: NULL
,
6111 } else if (IS_CHERRYVIEW(dev
)) {
6112 chv_update_pll(intel_crtc
);
6113 } else if (IS_VALLEYVIEW(dev
)) {
6114 vlv_update_pll(intel_crtc
);
6116 i9xx_update_pll(intel_crtc
,
6117 has_reduced_clock
? &reduced_clock
: NULL
,
6124 static void i9xx_get_pfit_config(struct intel_crtc
*crtc
,
6125 struct intel_crtc_config
*pipe_config
)
6127 struct drm_device
*dev
= crtc
->base
.dev
;
6128 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6131 if (INTEL_INFO(dev
)->gen
<= 3 && (IS_I830(dev
) || !IS_MOBILE(dev
)))
6134 tmp
= I915_READ(PFIT_CONTROL
);
6135 if (!(tmp
& PFIT_ENABLE
))
6138 /* Check whether the pfit is attached to our pipe. */
6139 if (INTEL_INFO(dev
)->gen
< 4) {
6140 if (crtc
->pipe
!= PIPE_B
)
6143 if ((tmp
& PFIT_PIPE_MASK
) != (crtc
->pipe
<< PFIT_PIPE_SHIFT
))
6147 pipe_config
->gmch_pfit
.control
= tmp
;
6148 pipe_config
->gmch_pfit
.pgm_ratios
= I915_READ(PFIT_PGM_RATIOS
);
6149 if (INTEL_INFO(dev
)->gen
< 5)
6150 pipe_config
->gmch_pfit
.lvds_border_bits
=
6151 I915_READ(LVDS
) & LVDS_BORDER_ENABLE
;
6154 static void vlv_crtc_clock_get(struct intel_crtc
*crtc
,
6155 struct intel_crtc_config
*pipe_config
)
6157 struct drm_device
*dev
= crtc
->base
.dev
;
6158 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6159 int pipe
= pipe_config
->cpu_transcoder
;
6160 intel_clock_t clock
;
6162 int refclk
= 100000;
6164 /* In case of MIPI DPLL will not even be used */
6165 if (!(pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
))
6168 mutex_lock(&dev_priv
->dpio_lock
);
6169 mdiv
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW3(pipe
));
6170 mutex_unlock(&dev_priv
->dpio_lock
);
6172 clock
.m1
= (mdiv
>> DPIO_M1DIV_SHIFT
) & 7;
6173 clock
.m2
= mdiv
& DPIO_M2DIV_MASK
;
6174 clock
.n
= (mdiv
>> DPIO_N_SHIFT
) & 0xf;
6175 clock
.p1
= (mdiv
>> DPIO_P1_SHIFT
) & 7;
6176 clock
.p2
= (mdiv
>> DPIO_P2_SHIFT
) & 0x1f;
6178 vlv_clock(refclk
, &clock
);
6180 /* clock.dot is the fast clock */
6181 pipe_config
->port_clock
= clock
.dot
/ 5;
6184 static void i9xx_get_plane_config(struct intel_crtc
*crtc
,
6185 struct intel_plane_config
*plane_config
)
6187 struct drm_device
*dev
= crtc
->base
.dev
;
6188 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6189 u32 val
, base
, offset
;
6190 int pipe
= crtc
->pipe
, plane
= crtc
->plane
;
6191 int fourcc
, pixel_format
;
6194 crtc
->base
.primary
->fb
= kzalloc(sizeof(struct intel_framebuffer
), GFP_KERNEL
);
6195 if (!crtc
->base
.primary
->fb
) {
6196 DRM_DEBUG_KMS("failed to alloc fb\n");
6200 val
= I915_READ(DSPCNTR(plane
));
6202 if (INTEL_INFO(dev
)->gen
>= 4)
6203 if (val
& DISPPLANE_TILED
)
6204 plane_config
->tiled
= true;
6206 pixel_format
= val
& DISPPLANE_PIXFORMAT_MASK
;
6207 fourcc
= intel_format_to_fourcc(pixel_format
);
6208 crtc
->base
.primary
->fb
->pixel_format
= fourcc
;
6209 crtc
->base
.primary
->fb
->bits_per_pixel
=
6210 drm_format_plane_cpp(fourcc
, 0) * 8;
6212 if (INTEL_INFO(dev
)->gen
>= 4) {
6213 if (plane_config
->tiled
)
6214 offset
= I915_READ(DSPTILEOFF(plane
));
6216 offset
= I915_READ(DSPLINOFF(plane
));
6217 base
= I915_READ(DSPSURF(plane
)) & 0xfffff000;
6219 base
= I915_READ(DSPADDR(plane
));
6221 plane_config
->base
= base
;
6223 val
= I915_READ(PIPESRC(pipe
));
6224 crtc
->base
.primary
->fb
->width
= ((val
>> 16) & 0xfff) + 1;
6225 crtc
->base
.primary
->fb
->height
= ((val
>> 0) & 0xfff) + 1;
6227 val
= I915_READ(DSPSTRIDE(pipe
));
6228 crtc
->base
.primary
->fb
->pitches
[0] = val
& 0xffffffc0;
6230 aligned_height
= intel_align_height(dev
, crtc
->base
.primary
->fb
->height
,
6231 plane_config
->tiled
);
6233 plane_config
->size
= PAGE_ALIGN(crtc
->base
.primary
->fb
->pitches
[0] *
6236 DRM_DEBUG_KMS("pipe/plane %d/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
6237 pipe
, plane
, crtc
->base
.primary
->fb
->width
,
6238 crtc
->base
.primary
->fb
->height
,
6239 crtc
->base
.primary
->fb
->bits_per_pixel
, base
,
6240 crtc
->base
.primary
->fb
->pitches
[0],
6241 plane_config
->size
);
6245 static void chv_crtc_clock_get(struct intel_crtc
*crtc
,
6246 struct intel_crtc_config
*pipe_config
)
6248 struct drm_device
*dev
= crtc
->base
.dev
;
6249 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6250 int pipe
= pipe_config
->cpu_transcoder
;
6251 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
6252 intel_clock_t clock
;
6253 u32 cmn_dw13
, pll_dw0
, pll_dw1
, pll_dw2
;
6254 int refclk
= 100000;
6256 mutex_lock(&dev_priv
->dpio_lock
);
6257 cmn_dw13
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW13(port
));
6258 pll_dw0
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW0(port
));
6259 pll_dw1
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW1(port
));
6260 pll_dw2
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW2(port
));
6261 mutex_unlock(&dev_priv
->dpio_lock
);
6263 clock
.m1
= (pll_dw1
& 0x7) == DPIO_CHV_M1_DIV_BY_2
? 2 : 0;
6264 clock
.m2
= ((pll_dw0
& 0xff) << 22) | (pll_dw2
& 0x3fffff);
6265 clock
.n
= (pll_dw1
>> DPIO_CHV_N_DIV_SHIFT
) & 0xf;
6266 clock
.p1
= (cmn_dw13
>> DPIO_CHV_P1_DIV_SHIFT
) & 0x7;
6267 clock
.p2
= (cmn_dw13
>> DPIO_CHV_P2_DIV_SHIFT
) & 0x1f;
6269 chv_clock(refclk
, &clock
);
6271 /* clock.dot is the fast clock */
6272 pipe_config
->port_clock
= clock
.dot
/ 5;
6275 static bool i9xx_get_pipe_config(struct intel_crtc
*crtc
,
6276 struct intel_crtc_config
*pipe_config
)
6278 struct drm_device
*dev
= crtc
->base
.dev
;
6279 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6282 if (!intel_display_power_enabled(dev_priv
,
6283 POWER_DOMAIN_PIPE(crtc
->pipe
)))
6286 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
6287 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
6289 tmp
= I915_READ(PIPECONF(crtc
->pipe
));
6290 if (!(tmp
& PIPECONF_ENABLE
))
6293 if (IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) {
6294 switch (tmp
& PIPECONF_BPC_MASK
) {
6296 pipe_config
->pipe_bpp
= 18;
6299 pipe_config
->pipe_bpp
= 24;
6301 case PIPECONF_10BPC
:
6302 pipe_config
->pipe_bpp
= 30;
6309 if (IS_VALLEYVIEW(dev
) && (tmp
& PIPECONF_COLOR_RANGE_SELECT
))
6310 pipe_config
->limited_color_range
= true;
6312 if (INTEL_INFO(dev
)->gen
< 4)
6313 pipe_config
->double_wide
= tmp
& PIPECONF_DOUBLE_WIDE
;
6315 intel_get_pipe_timings(crtc
, pipe_config
);
6317 i9xx_get_pfit_config(crtc
, pipe_config
);
6319 if (INTEL_INFO(dev
)->gen
>= 4) {
6320 tmp
= I915_READ(DPLL_MD(crtc
->pipe
));
6321 pipe_config
->pixel_multiplier
=
6322 ((tmp
& DPLL_MD_UDI_MULTIPLIER_MASK
)
6323 >> DPLL_MD_UDI_MULTIPLIER_SHIFT
) + 1;
6324 pipe_config
->dpll_hw_state
.dpll_md
= tmp
;
6325 } else if (IS_I945G(dev
) || IS_I945GM(dev
) || IS_G33(dev
)) {
6326 tmp
= I915_READ(DPLL(crtc
->pipe
));
6327 pipe_config
->pixel_multiplier
=
6328 ((tmp
& SDVO_MULTIPLIER_MASK
)
6329 >> SDVO_MULTIPLIER_SHIFT_HIRES
) + 1;
6331 /* Note that on i915G/GM the pixel multiplier is in the sdvo
6332 * port and will be fixed up in the encoder->get_config
6334 pipe_config
->pixel_multiplier
= 1;
6336 pipe_config
->dpll_hw_state
.dpll
= I915_READ(DPLL(crtc
->pipe
));
6337 if (!IS_VALLEYVIEW(dev
)) {
6338 pipe_config
->dpll_hw_state
.fp0
= I915_READ(FP0(crtc
->pipe
));
6339 pipe_config
->dpll_hw_state
.fp1
= I915_READ(FP1(crtc
->pipe
));
6341 /* Mask out read-only status bits. */
6342 pipe_config
->dpll_hw_state
.dpll
&= ~(DPLL_LOCK_VLV
|
6343 DPLL_PORTC_READY_MASK
|
6344 DPLL_PORTB_READY_MASK
);
6347 if (IS_CHERRYVIEW(dev
))
6348 chv_crtc_clock_get(crtc
, pipe_config
);
6349 else if (IS_VALLEYVIEW(dev
))
6350 vlv_crtc_clock_get(crtc
, pipe_config
);
6352 i9xx_crtc_clock_get(crtc
, pipe_config
);
6357 static void ironlake_init_pch_refclk(struct drm_device
*dev
)
6359 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6360 struct intel_encoder
*encoder
;
6362 bool has_lvds
= false;
6363 bool has_cpu_edp
= false;
6364 bool has_panel
= false;
6365 bool has_ck505
= false;
6366 bool can_ssc
= false;
6368 /* We need to take the global config into account */
6369 for_each_intel_encoder(dev
, encoder
) {
6370 switch (encoder
->type
) {
6371 case INTEL_OUTPUT_LVDS
:
6375 case INTEL_OUTPUT_EDP
:
6377 if (enc_to_dig_port(&encoder
->base
)->port
== PORT_A
)
6383 if (HAS_PCH_IBX(dev
)) {
6384 has_ck505
= dev_priv
->vbt
.display_clock_mode
;
6385 can_ssc
= has_ck505
;
6391 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n",
6392 has_panel
, has_lvds
, has_ck505
);
6394 /* Ironlake: try to setup display ref clock before DPLL
6395 * enabling. This is only under driver's control after
6396 * PCH B stepping, previous chipset stepping should be
6397 * ignoring this setting.
6399 val
= I915_READ(PCH_DREF_CONTROL
);
6401 /* As we must carefully and slowly disable/enable each source in turn,
6402 * compute the final state we want first and check if we need to
6403 * make any changes at all.
6406 final
&= ~DREF_NONSPREAD_SOURCE_MASK
;
6408 final
|= DREF_NONSPREAD_CK505_ENABLE
;
6410 final
|= DREF_NONSPREAD_SOURCE_ENABLE
;
6412 final
&= ~DREF_SSC_SOURCE_MASK
;
6413 final
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
6414 final
&= ~DREF_SSC1_ENABLE
;
6417 final
|= DREF_SSC_SOURCE_ENABLE
;
6419 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
6420 final
|= DREF_SSC1_ENABLE
;
6423 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
6424 final
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
6426 final
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
6428 final
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
6430 final
|= DREF_SSC_SOURCE_DISABLE
;
6431 final
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
6437 /* Always enable nonspread source */
6438 val
&= ~DREF_NONSPREAD_SOURCE_MASK
;
6441 val
|= DREF_NONSPREAD_CK505_ENABLE
;
6443 val
|= DREF_NONSPREAD_SOURCE_ENABLE
;
6446 val
&= ~DREF_SSC_SOURCE_MASK
;
6447 val
|= DREF_SSC_SOURCE_ENABLE
;
6449 /* SSC must be turned on before enabling the CPU output */
6450 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
6451 DRM_DEBUG_KMS("Using SSC on panel\n");
6452 val
|= DREF_SSC1_ENABLE
;
6454 val
&= ~DREF_SSC1_ENABLE
;
6456 /* Get SSC going before enabling the outputs */
6457 I915_WRITE(PCH_DREF_CONTROL
, val
);
6458 POSTING_READ(PCH_DREF_CONTROL
);
6461 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
6463 /* Enable CPU source on CPU attached eDP */
6465 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
6466 DRM_DEBUG_KMS("Using SSC on eDP\n");
6467 val
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
6469 val
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
6471 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
6473 I915_WRITE(PCH_DREF_CONTROL
, val
);
6474 POSTING_READ(PCH_DREF_CONTROL
);
6477 DRM_DEBUG_KMS("Disabling SSC entirely\n");
6479 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
6481 /* Turn off CPU output */
6482 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
6484 I915_WRITE(PCH_DREF_CONTROL
, val
);
6485 POSTING_READ(PCH_DREF_CONTROL
);
6488 /* Turn off the SSC source */
6489 val
&= ~DREF_SSC_SOURCE_MASK
;
6490 val
|= DREF_SSC_SOURCE_DISABLE
;
6493 val
&= ~DREF_SSC1_ENABLE
;
6495 I915_WRITE(PCH_DREF_CONTROL
, val
);
6496 POSTING_READ(PCH_DREF_CONTROL
);
6500 BUG_ON(val
!= final
);
6503 static void lpt_reset_fdi_mphy(struct drm_i915_private
*dev_priv
)
6507 tmp
= I915_READ(SOUTH_CHICKEN2
);
6508 tmp
|= FDI_MPHY_IOSFSB_RESET_CTL
;
6509 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
6511 if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2
) &
6512 FDI_MPHY_IOSFSB_RESET_STATUS
, 100))
6513 DRM_ERROR("FDI mPHY reset assert timeout\n");
6515 tmp
= I915_READ(SOUTH_CHICKEN2
);
6516 tmp
&= ~FDI_MPHY_IOSFSB_RESET_CTL
;
6517 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
6519 if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2
) &
6520 FDI_MPHY_IOSFSB_RESET_STATUS
) == 0, 100))
6521 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
6524 /* WaMPhyProgramming:hsw */
6525 static void lpt_program_fdi_mphy(struct drm_i915_private
*dev_priv
)
6529 tmp
= intel_sbi_read(dev_priv
, 0x8008, SBI_MPHY
);
6530 tmp
&= ~(0xFF << 24);
6531 tmp
|= (0x12 << 24);
6532 intel_sbi_write(dev_priv
, 0x8008, tmp
, SBI_MPHY
);
6534 tmp
= intel_sbi_read(dev_priv
, 0x2008, SBI_MPHY
);
6536 intel_sbi_write(dev_priv
, 0x2008, tmp
, SBI_MPHY
);
6538 tmp
= intel_sbi_read(dev_priv
, 0x2108, SBI_MPHY
);
6540 intel_sbi_write(dev_priv
, 0x2108, tmp
, SBI_MPHY
);
6542 tmp
= intel_sbi_read(dev_priv
, 0x206C, SBI_MPHY
);
6543 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
6544 intel_sbi_write(dev_priv
, 0x206C, tmp
, SBI_MPHY
);
6546 tmp
= intel_sbi_read(dev_priv
, 0x216C, SBI_MPHY
);
6547 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
6548 intel_sbi_write(dev_priv
, 0x216C, tmp
, SBI_MPHY
);
6550 tmp
= intel_sbi_read(dev_priv
, 0x2080, SBI_MPHY
);
6553 intel_sbi_write(dev_priv
, 0x2080, tmp
, SBI_MPHY
);
6555 tmp
= intel_sbi_read(dev_priv
, 0x2180, SBI_MPHY
);
6558 intel_sbi_write(dev_priv
, 0x2180, tmp
, SBI_MPHY
);
6560 tmp
= intel_sbi_read(dev_priv
, 0x208C, SBI_MPHY
);
6563 intel_sbi_write(dev_priv
, 0x208C, tmp
, SBI_MPHY
);
6565 tmp
= intel_sbi_read(dev_priv
, 0x218C, SBI_MPHY
);
6568 intel_sbi_write(dev_priv
, 0x218C, tmp
, SBI_MPHY
);
6570 tmp
= intel_sbi_read(dev_priv
, 0x2098, SBI_MPHY
);
6571 tmp
&= ~(0xFF << 16);
6572 tmp
|= (0x1C << 16);
6573 intel_sbi_write(dev_priv
, 0x2098, tmp
, SBI_MPHY
);
6575 tmp
= intel_sbi_read(dev_priv
, 0x2198, SBI_MPHY
);
6576 tmp
&= ~(0xFF << 16);
6577 tmp
|= (0x1C << 16);
6578 intel_sbi_write(dev_priv
, 0x2198, tmp
, SBI_MPHY
);
6580 tmp
= intel_sbi_read(dev_priv
, 0x20C4, SBI_MPHY
);
6582 intel_sbi_write(dev_priv
, 0x20C4, tmp
, SBI_MPHY
);
6584 tmp
= intel_sbi_read(dev_priv
, 0x21C4, SBI_MPHY
);
6586 intel_sbi_write(dev_priv
, 0x21C4, tmp
, SBI_MPHY
);
6588 tmp
= intel_sbi_read(dev_priv
, 0x20EC, SBI_MPHY
);
6589 tmp
&= ~(0xF << 28);
6591 intel_sbi_write(dev_priv
, 0x20EC, tmp
, SBI_MPHY
);
6593 tmp
= intel_sbi_read(dev_priv
, 0x21EC, SBI_MPHY
);
6594 tmp
&= ~(0xF << 28);
6596 intel_sbi_write(dev_priv
, 0x21EC, tmp
, SBI_MPHY
);
6599 /* Implements 3 different sequences from BSpec chapter "Display iCLK
6600 * Programming" based on the parameters passed:
6601 * - Sequence to enable CLKOUT_DP
6602 * - Sequence to enable CLKOUT_DP without spread
6603 * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O
6605 static void lpt_enable_clkout_dp(struct drm_device
*dev
, bool with_spread
,
6608 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6611 if (WARN(with_fdi
&& !with_spread
, "FDI requires downspread\n"))
6613 if (WARN(dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
&&
6614 with_fdi
, "LP PCH doesn't have FDI\n"))
6617 mutex_lock(&dev_priv
->dpio_lock
);
6619 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
6620 tmp
&= ~SBI_SSCCTL_DISABLE
;
6621 tmp
|= SBI_SSCCTL_PATHALT
;
6622 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
6627 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
6628 tmp
&= ~SBI_SSCCTL_PATHALT
;
6629 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
6632 lpt_reset_fdi_mphy(dev_priv
);
6633 lpt_program_fdi_mphy(dev_priv
);
6637 reg
= (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) ?
6638 SBI_GEN0
: SBI_DBUFF0
;
6639 tmp
= intel_sbi_read(dev_priv
, reg
, SBI_ICLK
);
6640 tmp
|= SBI_GEN0_CFG_BUFFENABLE_DISABLE
;
6641 intel_sbi_write(dev_priv
, reg
, tmp
, SBI_ICLK
);
6643 mutex_unlock(&dev_priv
->dpio_lock
);
6646 /* Sequence to disable CLKOUT_DP */
6647 static void lpt_disable_clkout_dp(struct drm_device
*dev
)
6649 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6652 mutex_lock(&dev_priv
->dpio_lock
);
6654 reg
= (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) ?
6655 SBI_GEN0
: SBI_DBUFF0
;
6656 tmp
= intel_sbi_read(dev_priv
, reg
, SBI_ICLK
);
6657 tmp
&= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE
;
6658 intel_sbi_write(dev_priv
, reg
, tmp
, SBI_ICLK
);
6660 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
6661 if (!(tmp
& SBI_SSCCTL_DISABLE
)) {
6662 if (!(tmp
& SBI_SSCCTL_PATHALT
)) {
6663 tmp
|= SBI_SSCCTL_PATHALT
;
6664 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
6667 tmp
|= SBI_SSCCTL_DISABLE
;
6668 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
6671 mutex_unlock(&dev_priv
->dpio_lock
);
6674 static void lpt_init_pch_refclk(struct drm_device
*dev
)
6676 struct intel_encoder
*encoder
;
6677 bool has_vga
= false;
6679 for_each_intel_encoder(dev
, encoder
) {
6680 switch (encoder
->type
) {
6681 case INTEL_OUTPUT_ANALOG
:
6688 lpt_enable_clkout_dp(dev
, true, true);
6690 lpt_disable_clkout_dp(dev
);
6694 * Initialize reference clocks when the driver loads
6696 void intel_init_pch_refclk(struct drm_device
*dev
)
6698 if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
6699 ironlake_init_pch_refclk(dev
);
6700 else if (HAS_PCH_LPT(dev
))
6701 lpt_init_pch_refclk(dev
);
6704 static int ironlake_get_refclk(struct drm_crtc
*crtc
)
6706 struct drm_device
*dev
= crtc
->dev
;
6707 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6708 struct intel_encoder
*encoder
;
6709 int num_connectors
= 0;
6710 bool is_lvds
= false;
6712 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
6713 switch (encoder
->type
) {
6714 case INTEL_OUTPUT_LVDS
:
6721 if (is_lvds
&& intel_panel_use_ssc(dev_priv
) && num_connectors
< 2) {
6722 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n",
6723 dev_priv
->vbt
.lvds_ssc_freq
);
6724 return dev_priv
->vbt
.lvds_ssc_freq
;
6730 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
)
6732 struct drm_i915_private
*dev_priv
= crtc
->dev
->dev_private
;
6733 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6734 int pipe
= intel_crtc
->pipe
;
6739 switch (intel_crtc
->config
.pipe_bpp
) {
6741 val
|= PIPECONF_6BPC
;
6744 val
|= PIPECONF_8BPC
;
6747 val
|= PIPECONF_10BPC
;
6750 val
|= PIPECONF_12BPC
;
6753 /* Case prevented by intel_choose_pipe_bpp_dither. */
6757 if (intel_crtc
->config
.dither
)
6758 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
6760 if (intel_crtc
->config
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
6761 val
|= PIPECONF_INTERLACED_ILK
;
6763 val
|= PIPECONF_PROGRESSIVE
;
6765 if (intel_crtc
->config
.limited_color_range
)
6766 val
|= PIPECONF_COLOR_RANGE_SELECT
;
6768 I915_WRITE(PIPECONF(pipe
), val
);
6769 POSTING_READ(PIPECONF(pipe
));
6773 * Set up the pipe CSC unit.
6775 * Currently only full range RGB to limited range RGB conversion
6776 * is supported, but eventually this should handle various
6777 * RGB<->YCbCr scenarios as well.
6779 static void intel_set_pipe_csc(struct drm_crtc
*crtc
)
6781 struct drm_device
*dev
= crtc
->dev
;
6782 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6783 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6784 int pipe
= intel_crtc
->pipe
;
6785 uint16_t coeff
= 0x7800; /* 1.0 */
6788 * TODO: Check what kind of values actually come out of the pipe
6789 * with these coeff/postoff values and adjust to get the best
6790 * accuracy. Perhaps we even need to take the bpc value into
6794 if (intel_crtc
->config
.limited_color_range
)
6795 coeff
= ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */
6798 * GY/GU and RY/RU should be the other way around according
6799 * to BSpec, but reality doesn't agree. Just set them up in
6800 * a way that results in the correct picture.
6802 I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe
), coeff
<< 16);
6803 I915_WRITE(PIPE_CSC_COEFF_BY(pipe
), 0);
6805 I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe
), coeff
);
6806 I915_WRITE(PIPE_CSC_COEFF_BU(pipe
), 0);
6808 I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe
), 0);
6809 I915_WRITE(PIPE_CSC_COEFF_BV(pipe
), coeff
<< 16);
6811 I915_WRITE(PIPE_CSC_PREOFF_HI(pipe
), 0);
6812 I915_WRITE(PIPE_CSC_PREOFF_ME(pipe
), 0);
6813 I915_WRITE(PIPE_CSC_PREOFF_LO(pipe
), 0);
6815 if (INTEL_INFO(dev
)->gen
> 6) {
6816 uint16_t postoff
= 0;
6818 if (intel_crtc
->config
.limited_color_range
)
6819 postoff
= (16 * (1 << 12) / 255) & 0x1fff;
6821 I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe
), postoff
);
6822 I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe
), postoff
);
6823 I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe
), postoff
);
6825 I915_WRITE(PIPE_CSC_MODE(pipe
), 0);
6827 uint32_t mode
= CSC_MODE_YUV_TO_RGB
;
6829 if (intel_crtc
->config
.limited_color_range
)
6830 mode
|= CSC_BLACK_SCREEN_OFFSET
;
6832 I915_WRITE(PIPE_CSC_MODE(pipe
), mode
);
6836 static void haswell_set_pipeconf(struct drm_crtc
*crtc
)
6838 struct drm_device
*dev
= crtc
->dev
;
6839 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6840 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6841 enum pipe pipe
= intel_crtc
->pipe
;
6842 enum transcoder cpu_transcoder
= intel_crtc
->config
.cpu_transcoder
;
6847 if (IS_HASWELL(dev
) && intel_crtc
->config
.dither
)
6848 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
6850 if (intel_crtc
->config
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
6851 val
|= PIPECONF_INTERLACED_ILK
;
6853 val
|= PIPECONF_PROGRESSIVE
;
6855 I915_WRITE(PIPECONF(cpu_transcoder
), val
);
6856 POSTING_READ(PIPECONF(cpu_transcoder
));
6858 I915_WRITE(GAMMA_MODE(intel_crtc
->pipe
), GAMMA_MODE_MODE_8BIT
);
6859 POSTING_READ(GAMMA_MODE(intel_crtc
->pipe
));
6861 if (IS_BROADWELL(dev
)) {
6864 switch (intel_crtc
->config
.pipe_bpp
) {
6866 val
|= PIPEMISC_DITHER_6_BPC
;
6869 val
|= PIPEMISC_DITHER_8_BPC
;
6872 val
|= PIPEMISC_DITHER_10_BPC
;
6875 val
|= PIPEMISC_DITHER_12_BPC
;
6878 /* Case prevented by pipe_config_set_bpp. */
6882 if (intel_crtc
->config
.dither
)
6883 val
|= PIPEMISC_DITHER_ENABLE
| PIPEMISC_DITHER_TYPE_SP
;
6885 I915_WRITE(PIPEMISC(pipe
), val
);
6889 static bool ironlake_compute_clocks(struct drm_crtc
*crtc
,
6890 intel_clock_t
*clock
,
6891 bool *has_reduced_clock
,
6892 intel_clock_t
*reduced_clock
)
6894 struct drm_device
*dev
= crtc
->dev
;
6895 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6896 struct intel_encoder
*intel_encoder
;
6898 const intel_limit_t
*limit
;
6899 bool ret
, is_lvds
= false;
6901 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
) {
6902 switch (intel_encoder
->type
) {
6903 case INTEL_OUTPUT_LVDS
:
6909 refclk
= ironlake_get_refclk(crtc
);
6912 * Returns a set of divisors for the desired target clock with the given
6913 * refclk, or FALSE. The returned values represent the clock equation:
6914 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
6916 limit
= intel_limit(crtc
, refclk
);
6917 ret
= dev_priv
->display
.find_dpll(limit
, crtc
,
6918 to_intel_crtc(crtc
)->config
.port_clock
,
6919 refclk
, NULL
, clock
);
6923 if (is_lvds
&& dev_priv
->lvds_downclock_avail
) {
6925 * Ensure we match the reduced clock's P to the target clock.
6926 * If the clocks don't match, we can't switch the display clock
6927 * by using the FP0/FP1. In such case we will disable the LVDS
6928 * downclock feature.
6930 *has_reduced_clock
=
6931 dev_priv
->display
.find_dpll(limit
, crtc
,
6932 dev_priv
->lvds_downclock
,
6940 int ironlake_get_lanes_required(int target_clock
, int link_bw
, int bpp
)
6943 * Account for spread spectrum to avoid
6944 * oversubscribing the link. Max center spread
6945 * is 2.5%; use 5% for safety's sake.
6947 u32 bps
= target_clock
* bpp
* 21 / 20;
6948 return DIV_ROUND_UP(bps
, link_bw
* 8);
6951 static bool ironlake_needs_fb_cb_tune(struct dpll
*dpll
, int factor
)
6953 return i9xx_dpll_compute_m(dpll
) < factor
* dpll
->n
;
6956 static uint32_t ironlake_compute_dpll(struct intel_crtc
*intel_crtc
,
6958 intel_clock_t
*reduced_clock
, u32
*fp2
)
6960 struct drm_crtc
*crtc
= &intel_crtc
->base
;
6961 struct drm_device
*dev
= crtc
->dev
;
6962 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6963 struct intel_encoder
*intel_encoder
;
6965 int factor
, num_connectors
= 0;
6966 bool is_lvds
= false, is_sdvo
= false;
6968 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
) {
6969 switch (intel_encoder
->type
) {
6970 case INTEL_OUTPUT_LVDS
:
6973 case INTEL_OUTPUT_SDVO
:
6974 case INTEL_OUTPUT_HDMI
:
6982 /* Enable autotuning of the PLL clock (if permissible) */
6985 if ((intel_panel_use_ssc(dev_priv
) &&
6986 dev_priv
->vbt
.lvds_ssc_freq
== 100000) ||
6987 (HAS_PCH_IBX(dev
) && intel_is_dual_link_lvds(dev
)))
6989 } else if (intel_crtc
->config
.sdvo_tv_clock
)
6992 if (ironlake_needs_fb_cb_tune(&intel_crtc
->config
.dpll
, factor
))
6995 if (fp2
&& (reduced_clock
->m
< factor
* reduced_clock
->n
))
7001 dpll
|= DPLLB_MODE_LVDS
;
7003 dpll
|= DPLLB_MODE_DAC_SERIAL
;
7005 dpll
|= (intel_crtc
->config
.pixel_multiplier
- 1)
7006 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
;
7009 dpll
|= DPLL_SDVO_HIGH_SPEED
;
7010 if (intel_crtc
->config
.has_dp_encoder
)
7011 dpll
|= DPLL_SDVO_HIGH_SPEED
;
7013 /* compute bitmask from p1 value */
7014 dpll
|= (1 << (intel_crtc
->config
.dpll
.p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
7016 dpll
|= (1 << (intel_crtc
->config
.dpll
.p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
7018 switch (intel_crtc
->config
.dpll
.p2
) {
7020 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
7023 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
7026 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
7029 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
7033 if (is_lvds
&& intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
7034 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
7036 dpll
|= PLL_REF_INPUT_DREFCLK
;
7038 return dpll
| DPLL_VCO_ENABLE
;
7041 static int ironlake_crtc_mode_set(struct drm_crtc
*crtc
,
7043 struct drm_framebuffer
*fb
)
7045 struct drm_device
*dev
= crtc
->dev
;
7046 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7047 int num_connectors
= 0;
7048 intel_clock_t clock
, reduced_clock
;
7049 u32 dpll
= 0, fp
= 0, fp2
= 0;
7050 bool ok
, has_reduced_clock
= false;
7051 bool is_lvds
= false;
7052 struct intel_encoder
*encoder
;
7053 struct intel_shared_dpll
*pll
;
7055 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
7056 switch (encoder
->type
) {
7057 case INTEL_OUTPUT_LVDS
:
7065 WARN(!(HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
)),
7066 "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev
));
7068 ok
= ironlake_compute_clocks(crtc
, &clock
,
7069 &has_reduced_clock
, &reduced_clock
);
7070 if (!ok
&& !intel_crtc
->config
.clock_set
) {
7071 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7074 /* Compat-code for transition, will disappear. */
7075 if (!intel_crtc
->config
.clock_set
) {
7076 intel_crtc
->config
.dpll
.n
= clock
.n
;
7077 intel_crtc
->config
.dpll
.m1
= clock
.m1
;
7078 intel_crtc
->config
.dpll
.m2
= clock
.m2
;
7079 intel_crtc
->config
.dpll
.p1
= clock
.p1
;
7080 intel_crtc
->config
.dpll
.p2
= clock
.p2
;
7083 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
7084 if (intel_crtc
->config
.has_pch_encoder
) {
7085 fp
= i9xx_dpll_compute_fp(&intel_crtc
->config
.dpll
);
7086 if (has_reduced_clock
)
7087 fp2
= i9xx_dpll_compute_fp(&reduced_clock
);
7089 dpll
= ironlake_compute_dpll(intel_crtc
,
7090 &fp
, &reduced_clock
,
7091 has_reduced_clock
? &fp2
: NULL
);
7093 intel_crtc
->config
.dpll_hw_state
.dpll
= dpll
;
7094 intel_crtc
->config
.dpll_hw_state
.fp0
= fp
;
7095 if (has_reduced_clock
)
7096 intel_crtc
->config
.dpll_hw_state
.fp1
= fp2
;
7098 intel_crtc
->config
.dpll_hw_state
.fp1
= fp
;
7100 pll
= intel_get_shared_dpll(intel_crtc
);
7102 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
7103 pipe_name(intel_crtc
->pipe
));
7107 intel_put_shared_dpll(intel_crtc
);
7109 if (is_lvds
&& has_reduced_clock
&& i915
.powersave
)
7110 intel_crtc
->lowfreq_avail
= true;
7112 intel_crtc
->lowfreq_avail
= false;
7117 static void intel_pch_transcoder_get_m_n(struct intel_crtc
*crtc
,
7118 struct intel_link_m_n
*m_n
)
7120 struct drm_device
*dev
= crtc
->base
.dev
;
7121 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7122 enum pipe pipe
= crtc
->pipe
;
7124 m_n
->link_m
= I915_READ(PCH_TRANS_LINK_M1(pipe
));
7125 m_n
->link_n
= I915_READ(PCH_TRANS_LINK_N1(pipe
));
7126 m_n
->gmch_m
= I915_READ(PCH_TRANS_DATA_M1(pipe
))
7128 m_n
->gmch_n
= I915_READ(PCH_TRANS_DATA_N1(pipe
));
7129 m_n
->tu
= ((I915_READ(PCH_TRANS_DATA_M1(pipe
))
7130 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
7133 static void intel_cpu_transcoder_get_m_n(struct intel_crtc
*crtc
,
7134 enum transcoder transcoder
,
7135 struct intel_link_m_n
*m_n
,
7136 struct intel_link_m_n
*m2_n2
)
7138 struct drm_device
*dev
= crtc
->base
.dev
;
7139 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7140 enum pipe pipe
= crtc
->pipe
;
7142 if (INTEL_INFO(dev
)->gen
>= 5) {
7143 m_n
->link_m
= I915_READ(PIPE_LINK_M1(transcoder
));
7144 m_n
->link_n
= I915_READ(PIPE_LINK_N1(transcoder
));
7145 m_n
->gmch_m
= I915_READ(PIPE_DATA_M1(transcoder
))
7147 m_n
->gmch_n
= I915_READ(PIPE_DATA_N1(transcoder
));
7148 m_n
->tu
= ((I915_READ(PIPE_DATA_M1(transcoder
))
7149 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
7150 /* Read M2_N2 registers only for gen < 8 (M2_N2 available for
7151 * gen < 8) and if DRRS is supported (to make sure the
7152 * registers are not unnecessarily read).
7154 if (m2_n2
&& INTEL_INFO(dev
)->gen
< 8 &&
7155 crtc
->config
.has_drrs
) {
7156 m2_n2
->link_m
= I915_READ(PIPE_LINK_M2(transcoder
));
7157 m2_n2
->link_n
= I915_READ(PIPE_LINK_N2(transcoder
));
7158 m2_n2
->gmch_m
= I915_READ(PIPE_DATA_M2(transcoder
))
7160 m2_n2
->gmch_n
= I915_READ(PIPE_DATA_N2(transcoder
));
7161 m2_n2
->tu
= ((I915_READ(PIPE_DATA_M2(transcoder
))
7162 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
7165 m_n
->link_m
= I915_READ(PIPE_LINK_M_G4X(pipe
));
7166 m_n
->link_n
= I915_READ(PIPE_LINK_N_G4X(pipe
));
7167 m_n
->gmch_m
= I915_READ(PIPE_DATA_M_G4X(pipe
))
7169 m_n
->gmch_n
= I915_READ(PIPE_DATA_N_G4X(pipe
));
7170 m_n
->tu
= ((I915_READ(PIPE_DATA_M_G4X(pipe
))
7171 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
7175 void intel_dp_get_m_n(struct intel_crtc
*crtc
,
7176 struct intel_crtc_config
*pipe_config
)
7178 if (crtc
->config
.has_pch_encoder
)
7179 intel_pch_transcoder_get_m_n(crtc
, &pipe_config
->dp_m_n
);
7181 intel_cpu_transcoder_get_m_n(crtc
, pipe_config
->cpu_transcoder
,
7182 &pipe_config
->dp_m_n
,
7183 &pipe_config
->dp_m2_n2
);
7186 static void ironlake_get_fdi_m_n_config(struct intel_crtc
*crtc
,
7187 struct intel_crtc_config
*pipe_config
)
7189 intel_cpu_transcoder_get_m_n(crtc
, pipe_config
->cpu_transcoder
,
7190 &pipe_config
->fdi_m_n
, NULL
);
7193 static void ironlake_get_pfit_config(struct intel_crtc
*crtc
,
7194 struct intel_crtc_config
*pipe_config
)
7196 struct drm_device
*dev
= crtc
->base
.dev
;
7197 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7200 tmp
= I915_READ(PF_CTL(crtc
->pipe
));
7202 if (tmp
& PF_ENABLE
) {
7203 pipe_config
->pch_pfit
.enabled
= true;
7204 pipe_config
->pch_pfit
.pos
= I915_READ(PF_WIN_POS(crtc
->pipe
));
7205 pipe_config
->pch_pfit
.size
= I915_READ(PF_WIN_SZ(crtc
->pipe
));
7207 /* We currently do not free assignements of panel fitters on
7208 * ivb/hsw (since we don't use the higher upscaling modes which
7209 * differentiates them) so just WARN about this case for now. */
7211 WARN_ON((tmp
& PF_PIPE_SEL_MASK_IVB
) !=
7212 PF_PIPE_SEL_IVB(crtc
->pipe
));
7217 static void ironlake_get_plane_config(struct intel_crtc
*crtc
,
7218 struct intel_plane_config
*plane_config
)
7220 struct drm_device
*dev
= crtc
->base
.dev
;
7221 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7222 u32 val
, base
, offset
;
7223 int pipe
= crtc
->pipe
, plane
= crtc
->plane
;
7224 int fourcc
, pixel_format
;
7227 crtc
->base
.primary
->fb
= kzalloc(sizeof(struct intel_framebuffer
), GFP_KERNEL
);
7228 if (!crtc
->base
.primary
->fb
) {
7229 DRM_DEBUG_KMS("failed to alloc fb\n");
7233 val
= I915_READ(DSPCNTR(plane
));
7235 if (INTEL_INFO(dev
)->gen
>= 4)
7236 if (val
& DISPPLANE_TILED
)
7237 plane_config
->tiled
= true;
7239 pixel_format
= val
& DISPPLANE_PIXFORMAT_MASK
;
7240 fourcc
= intel_format_to_fourcc(pixel_format
);
7241 crtc
->base
.primary
->fb
->pixel_format
= fourcc
;
7242 crtc
->base
.primary
->fb
->bits_per_pixel
=
7243 drm_format_plane_cpp(fourcc
, 0) * 8;
7245 base
= I915_READ(DSPSURF(plane
)) & 0xfffff000;
7246 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
7247 offset
= I915_READ(DSPOFFSET(plane
));
7249 if (plane_config
->tiled
)
7250 offset
= I915_READ(DSPTILEOFF(plane
));
7252 offset
= I915_READ(DSPLINOFF(plane
));
7254 plane_config
->base
= base
;
7256 val
= I915_READ(PIPESRC(pipe
));
7257 crtc
->base
.primary
->fb
->width
= ((val
>> 16) & 0xfff) + 1;
7258 crtc
->base
.primary
->fb
->height
= ((val
>> 0) & 0xfff) + 1;
7260 val
= I915_READ(DSPSTRIDE(pipe
));
7261 crtc
->base
.primary
->fb
->pitches
[0] = val
& 0xffffffc0;
7263 aligned_height
= intel_align_height(dev
, crtc
->base
.primary
->fb
->height
,
7264 plane_config
->tiled
);
7266 plane_config
->size
= PAGE_ALIGN(crtc
->base
.primary
->fb
->pitches
[0] *
7269 DRM_DEBUG_KMS("pipe/plane %d/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
7270 pipe
, plane
, crtc
->base
.primary
->fb
->width
,
7271 crtc
->base
.primary
->fb
->height
,
7272 crtc
->base
.primary
->fb
->bits_per_pixel
, base
,
7273 crtc
->base
.primary
->fb
->pitches
[0],
7274 plane_config
->size
);
7277 static bool ironlake_get_pipe_config(struct intel_crtc
*crtc
,
7278 struct intel_crtc_config
*pipe_config
)
7280 struct drm_device
*dev
= crtc
->base
.dev
;
7281 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7284 if (!intel_display_power_enabled(dev_priv
,
7285 POWER_DOMAIN_PIPE(crtc
->pipe
)))
7288 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
7289 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
7291 tmp
= I915_READ(PIPECONF(crtc
->pipe
));
7292 if (!(tmp
& PIPECONF_ENABLE
))
7295 switch (tmp
& PIPECONF_BPC_MASK
) {
7297 pipe_config
->pipe_bpp
= 18;
7300 pipe_config
->pipe_bpp
= 24;
7302 case PIPECONF_10BPC
:
7303 pipe_config
->pipe_bpp
= 30;
7305 case PIPECONF_12BPC
:
7306 pipe_config
->pipe_bpp
= 36;
7312 if (tmp
& PIPECONF_COLOR_RANGE_SELECT
)
7313 pipe_config
->limited_color_range
= true;
7315 if (I915_READ(PCH_TRANSCONF(crtc
->pipe
)) & TRANS_ENABLE
) {
7316 struct intel_shared_dpll
*pll
;
7318 pipe_config
->has_pch_encoder
= true;
7320 tmp
= I915_READ(FDI_RX_CTL(crtc
->pipe
));
7321 pipe_config
->fdi_lanes
= ((FDI_DP_PORT_WIDTH_MASK
& tmp
) >>
7322 FDI_DP_PORT_WIDTH_SHIFT
) + 1;
7324 ironlake_get_fdi_m_n_config(crtc
, pipe_config
);
7326 if (HAS_PCH_IBX(dev_priv
->dev
)) {
7327 pipe_config
->shared_dpll
=
7328 (enum intel_dpll_id
) crtc
->pipe
;
7330 tmp
= I915_READ(PCH_DPLL_SEL
);
7331 if (tmp
& TRANS_DPLLB_SEL(crtc
->pipe
))
7332 pipe_config
->shared_dpll
= DPLL_ID_PCH_PLL_B
;
7334 pipe_config
->shared_dpll
= DPLL_ID_PCH_PLL_A
;
7337 pll
= &dev_priv
->shared_dplls
[pipe_config
->shared_dpll
];
7339 WARN_ON(!pll
->get_hw_state(dev_priv
, pll
,
7340 &pipe_config
->dpll_hw_state
));
7342 tmp
= pipe_config
->dpll_hw_state
.dpll
;
7343 pipe_config
->pixel_multiplier
=
7344 ((tmp
& PLL_REF_SDVO_HDMI_MULTIPLIER_MASK
)
7345 >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
) + 1;
7347 ironlake_pch_clock_get(crtc
, pipe_config
);
7349 pipe_config
->pixel_multiplier
= 1;
7352 intel_get_pipe_timings(crtc
, pipe_config
);
7354 ironlake_get_pfit_config(crtc
, pipe_config
);
7359 static void assert_can_disable_lcpll(struct drm_i915_private
*dev_priv
)
7361 struct drm_device
*dev
= dev_priv
->dev
;
7362 struct intel_crtc
*crtc
;
7364 for_each_intel_crtc(dev
, crtc
)
7365 WARN(crtc
->active
, "CRTC for pipe %c enabled\n",
7366 pipe_name(crtc
->pipe
));
7368 WARN(I915_READ(HSW_PWR_WELL_DRIVER
), "Power well on\n");
7369 WARN(I915_READ(SPLL_CTL
) & SPLL_PLL_ENABLE
, "SPLL enabled\n");
7370 WARN(I915_READ(WRPLL_CTL1
) & WRPLL_PLL_ENABLE
, "WRPLL1 enabled\n");
7371 WARN(I915_READ(WRPLL_CTL2
) & WRPLL_PLL_ENABLE
, "WRPLL2 enabled\n");
7372 WARN(I915_READ(PCH_PP_STATUS
) & PP_ON
, "Panel power on\n");
7373 WARN(I915_READ(BLC_PWM_CPU_CTL2
) & BLM_PWM_ENABLE
,
7374 "CPU PWM1 enabled\n");
7375 if (IS_HASWELL(dev
))
7376 WARN(I915_READ(HSW_BLC_PWM2_CTL
) & BLM_PWM_ENABLE
,
7377 "CPU PWM2 enabled\n");
7378 WARN(I915_READ(BLC_PWM_PCH_CTL1
) & BLM_PCH_PWM_ENABLE
,
7379 "PCH PWM1 enabled\n");
7380 WARN(I915_READ(UTIL_PIN_CTL
) & UTIL_PIN_ENABLE
,
7381 "Utility pin enabled\n");
7382 WARN(I915_READ(PCH_GTC_CTL
) & PCH_GTC_ENABLE
, "PCH GTC enabled\n");
7385 * In theory we can still leave IRQs enabled, as long as only the HPD
7386 * interrupts remain enabled. We used to check for that, but since it's
7387 * gen-specific and since we only disable LCPLL after we fully disable
7388 * the interrupts, the check below should be enough.
7390 WARN(intel_irqs_enabled(dev_priv
), "IRQs enabled\n");
7393 static uint32_t hsw_read_dcomp(struct drm_i915_private
*dev_priv
)
7395 struct drm_device
*dev
= dev_priv
->dev
;
7397 if (IS_HASWELL(dev
))
7398 return I915_READ(D_COMP_HSW
);
7400 return I915_READ(D_COMP_BDW
);
7403 static void hsw_write_dcomp(struct drm_i915_private
*dev_priv
, uint32_t val
)
7405 struct drm_device
*dev
= dev_priv
->dev
;
7407 if (IS_HASWELL(dev
)) {
7408 mutex_lock(&dev_priv
->rps
.hw_lock
);
7409 if (sandybridge_pcode_write(dev_priv
, GEN6_PCODE_WRITE_D_COMP
,
7411 DRM_ERROR("Failed to write to D_COMP\n");
7412 mutex_unlock(&dev_priv
->rps
.hw_lock
);
7414 I915_WRITE(D_COMP_BDW
, val
);
7415 POSTING_READ(D_COMP_BDW
);
7420 * This function implements pieces of two sequences from BSpec:
7421 * - Sequence for display software to disable LCPLL
7422 * - Sequence for display software to allow package C8+
7423 * The steps implemented here are just the steps that actually touch the LCPLL
7424 * register. Callers should take care of disabling all the display engine
7425 * functions, doing the mode unset, fixing interrupts, etc.
7427 static void hsw_disable_lcpll(struct drm_i915_private
*dev_priv
,
7428 bool switch_to_fclk
, bool allow_power_down
)
7432 assert_can_disable_lcpll(dev_priv
);
7434 val
= I915_READ(LCPLL_CTL
);
7436 if (switch_to_fclk
) {
7437 val
|= LCPLL_CD_SOURCE_FCLK
;
7438 I915_WRITE(LCPLL_CTL
, val
);
7440 if (wait_for_atomic_us(I915_READ(LCPLL_CTL
) &
7441 LCPLL_CD_SOURCE_FCLK_DONE
, 1))
7442 DRM_ERROR("Switching to FCLK failed\n");
7444 val
= I915_READ(LCPLL_CTL
);
7447 val
|= LCPLL_PLL_DISABLE
;
7448 I915_WRITE(LCPLL_CTL
, val
);
7449 POSTING_READ(LCPLL_CTL
);
7451 if (wait_for((I915_READ(LCPLL_CTL
) & LCPLL_PLL_LOCK
) == 0, 1))
7452 DRM_ERROR("LCPLL still locked\n");
7454 val
= hsw_read_dcomp(dev_priv
);
7455 val
|= D_COMP_COMP_DISABLE
;
7456 hsw_write_dcomp(dev_priv
, val
);
7459 if (wait_for((hsw_read_dcomp(dev_priv
) & D_COMP_RCOMP_IN_PROGRESS
) == 0,
7461 DRM_ERROR("D_COMP RCOMP still in progress\n");
7463 if (allow_power_down
) {
7464 val
= I915_READ(LCPLL_CTL
);
7465 val
|= LCPLL_POWER_DOWN_ALLOW
;
7466 I915_WRITE(LCPLL_CTL
, val
);
7467 POSTING_READ(LCPLL_CTL
);
7472 * Fully restores LCPLL, disallowing power down and switching back to LCPLL
7475 static void hsw_restore_lcpll(struct drm_i915_private
*dev_priv
)
7478 unsigned long irqflags
;
7480 val
= I915_READ(LCPLL_CTL
);
7482 if ((val
& (LCPLL_PLL_LOCK
| LCPLL_PLL_DISABLE
| LCPLL_CD_SOURCE_FCLK
|
7483 LCPLL_POWER_DOWN_ALLOW
)) == LCPLL_PLL_LOCK
)
7487 * Make sure we're not on PC8 state before disabling PC8, otherwise
7488 * we'll hang the machine. To prevent PC8 state, just enable force_wake.
7490 * The other problem is that hsw_restore_lcpll() is called as part of
7491 * the runtime PM resume sequence, so we can't just call
7492 * gen6_gt_force_wake_get() because that function calls
7493 * intel_runtime_pm_get(), and we can't change the runtime PM refcount
7494 * while we are on the resume sequence. So to solve this problem we have
7495 * to call special forcewake code that doesn't touch runtime PM and
7496 * doesn't enable the forcewake delayed work.
7498 spin_lock_irqsave(&dev_priv
->uncore
.lock
, irqflags
);
7499 if (dev_priv
->uncore
.forcewake_count
++ == 0)
7500 dev_priv
->uncore
.funcs
.force_wake_get(dev_priv
, FORCEWAKE_ALL
);
7501 spin_unlock_irqrestore(&dev_priv
->uncore
.lock
, irqflags
);
7503 if (val
& LCPLL_POWER_DOWN_ALLOW
) {
7504 val
&= ~LCPLL_POWER_DOWN_ALLOW
;
7505 I915_WRITE(LCPLL_CTL
, val
);
7506 POSTING_READ(LCPLL_CTL
);
7509 val
= hsw_read_dcomp(dev_priv
);
7510 val
|= D_COMP_COMP_FORCE
;
7511 val
&= ~D_COMP_COMP_DISABLE
;
7512 hsw_write_dcomp(dev_priv
, val
);
7514 val
= I915_READ(LCPLL_CTL
);
7515 val
&= ~LCPLL_PLL_DISABLE
;
7516 I915_WRITE(LCPLL_CTL
, val
);
7518 if (wait_for(I915_READ(LCPLL_CTL
) & LCPLL_PLL_LOCK
, 5))
7519 DRM_ERROR("LCPLL not locked yet\n");
7521 if (val
& LCPLL_CD_SOURCE_FCLK
) {
7522 val
= I915_READ(LCPLL_CTL
);
7523 val
&= ~LCPLL_CD_SOURCE_FCLK
;
7524 I915_WRITE(LCPLL_CTL
, val
);
7526 if (wait_for_atomic_us((I915_READ(LCPLL_CTL
) &
7527 LCPLL_CD_SOURCE_FCLK_DONE
) == 0, 1))
7528 DRM_ERROR("Switching back to LCPLL failed\n");
7531 /* See the big comment above. */
7532 spin_lock_irqsave(&dev_priv
->uncore
.lock
, irqflags
);
7533 if (--dev_priv
->uncore
.forcewake_count
== 0)
7534 dev_priv
->uncore
.funcs
.force_wake_put(dev_priv
, FORCEWAKE_ALL
);
7535 spin_unlock_irqrestore(&dev_priv
->uncore
.lock
, irqflags
);
7539 * Package states C8 and deeper are really deep PC states that can only be
7540 * reached when all the devices on the system allow it, so even if the graphics
7541 * device allows PC8+, it doesn't mean the system will actually get to these
7542 * states. Our driver only allows PC8+ when going into runtime PM.
7544 * The requirements for PC8+ are that all the outputs are disabled, the power
7545 * well is disabled and most interrupts are disabled, and these are also
7546 * requirements for runtime PM. When these conditions are met, we manually do
7547 * the other conditions: disable the interrupts, clocks and switch LCPLL refclk
7548 * to Fclk. If we're in PC8+ and we get an non-hotplug interrupt, we can hard
7551 * When we really reach PC8 or deeper states (not just when we allow it) we lose
7552 * the state of some registers, so when we come back from PC8+ we need to
7553 * restore this state. We don't get into PC8+ if we're not in RC6, so we don't
7554 * need to take care of the registers kept by RC6. Notice that this happens even
7555 * if we don't put the device in PCI D3 state (which is what currently happens
7556 * because of the runtime PM support).
7558 * For more, read "Display Sequences for Package C8" on the hardware
7561 void hsw_enable_pc8(struct drm_i915_private
*dev_priv
)
7563 struct drm_device
*dev
= dev_priv
->dev
;
7566 DRM_DEBUG_KMS("Enabling package C8+\n");
7568 if (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) {
7569 val
= I915_READ(SOUTH_DSPCLK_GATE_D
);
7570 val
&= ~PCH_LP_PARTITION_LEVEL_DISABLE
;
7571 I915_WRITE(SOUTH_DSPCLK_GATE_D
, val
);
7574 lpt_disable_clkout_dp(dev
);
7575 hsw_disable_lcpll(dev_priv
, true, true);
7578 void hsw_disable_pc8(struct drm_i915_private
*dev_priv
)
7580 struct drm_device
*dev
= dev_priv
->dev
;
7583 DRM_DEBUG_KMS("Disabling package C8+\n");
7585 hsw_restore_lcpll(dev_priv
);
7586 lpt_init_pch_refclk(dev
);
7588 if (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) {
7589 val
= I915_READ(SOUTH_DSPCLK_GATE_D
);
7590 val
|= PCH_LP_PARTITION_LEVEL_DISABLE
;
7591 I915_WRITE(SOUTH_DSPCLK_GATE_D
, val
);
7594 intel_prepare_ddi(dev
);
7597 static void snb_modeset_global_resources(struct drm_device
*dev
)
7599 modeset_update_crtc_power_domains(dev
);
7602 static void haswell_modeset_global_resources(struct drm_device
*dev
)
7604 modeset_update_crtc_power_domains(dev
);
7607 static int haswell_crtc_mode_set(struct drm_crtc
*crtc
,
7609 struct drm_framebuffer
*fb
)
7611 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7613 if (!intel_ddi_pll_select(intel_crtc
))
7616 intel_crtc
->lowfreq_avail
= false;
7621 static void haswell_get_ddi_pll(struct drm_i915_private
*dev_priv
,
7623 struct intel_crtc_config
*pipe_config
)
7625 pipe_config
->ddi_pll_sel
= I915_READ(PORT_CLK_SEL(port
));
7627 switch (pipe_config
->ddi_pll_sel
) {
7628 case PORT_CLK_SEL_WRPLL1
:
7629 pipe_config
->shared_dpll
= DPLL_ID_WRPLL1
;
7631 case PORT_CLK_SEL_WRPLL2
:
7632 pipe_config
->shared_dpll
= DPLL_ID_WRPLL2
;
7637 static void haswell_get_ddi_port_state(struct intel_crtc
*crtc
,
7638 struct intel_crtc_config
*pipe_config
)
7640 struct drm_device
*dev
= crtc
->base
.dev
;
7641 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7642 struct intel_shared_dpll
*pll
;
7646 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(pipe_config
->cpu_transcoder
));
7648 port
= (tmp
& TRANS_DDI_PORT_MASK
) >> TRANS_DDI_PORT_SHIFT
;
7650 haswell_get_ddi_pll(dev_priv
, port
, pipe_config
);
7652 if (pipe_config
->shared_dpll
>= 0) {
7653 pll
= &dev_priv
->shared_dplls
[pipe_config
->shared_dpll
];
7655 WARN_ON(!pll
->get_hw_state(dev_priv
, pll
,
7656 &pipe_config
->dpll_hw_state
));
7660 * Haswell has only FDI/PCH transcoder A. It is which is connected to
7661 * DDI E. So just check whether this pipe is wired to DDI E and whether
7662 * the PCH transcoder is on.
7664 if ((port
== PORT_E
) && I915_READ(LPT_TRANSCONF
) & TRANS_ENABLE
) {
7665 pipe_config
->has_pch_encoder
= true;
7667 tmp
= I915_READ(FDI_RX_CTL(PIPE_A
));
7668 pipe_config
->fdi_lanes
= ((FDI_DP_PORT_WIDTH_MASK
& tmp
) >>
7669 FDI_DP_PORT_WIDTH_SHIFT
) + 1;
7671 ironlake_get_fdi_m_n_config(crtc
, pipe_config
);
7675 static bool haswell_get_pipe_config(struct intel_crtc
*crtc
,
7676 struct intel_crtc_config
*pipe_config
)
7678 struct drm_device
*dev
= crtc
->base
.dev
;
7679 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7680 enum intel_display_power_domain pfit_domain
;
7683 if (!intel_display_power_enabled(dev_priv
,
7684 POWER_DOMAIN_PIPE(crtc
->pipe
)))
7687 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
7688 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
7690 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP
));
7691 if (tmp
& TRANS_DDI_FUNC_ENABLE
) {
7692 enum pipe trans_edp_pipe
;
7693 switch (tmp
& TRANS_DDI_EDP_INPUT_MASK
) {
7695 WARN(1, "unknown pipe linked to edp transcoder\n");
7696 case TRANS_DDI_EDP_INPUT_A_ONOFF
:
7697 case TRANS_DDI_EDP_INPUT_A_ON
:
7698 trans_edp_pipe
= PIPE_A
;
7700 case TRANS_DDI_EDP_INPUT_B_ONOFF
:
7701 trans_edp_pipe
= PIPE_B
;
7703 case TRANS_DDI_EDP_INPUT_C_ONOFF
:
7704 trans_edp_pipe
= PIPE_C
;
7708 if (trans_edp_pipe
== crtc
->pipe
)
7709 pipe_config
->cpu_transcoder
= TRANSCODER_EDP
;
7712 if (!intel_display_power_enabled(dev_priv
,
7713 POWER_DOMAIN_TRANSCODER(pipe_config
->cpu_transcoder
)))
7716 tmp
= I915_READ(PIPECONF(pipe_config
->cpu_transcoder
));
7717 if (!(tmp
& PIPECONF_ENABLE
))
7720 haswell_get_ddi_port_state(crtc
, pipe_config
);
7722 intel_get_pipe_timings(crtc
, pipe_config
);
7724 pfit_domain
= POWER_DOMAIN_PIPE_PANEL_FITTER(crtc
->pipe
);
7725 if (intel_display_power_enabled(dev_priv
, pfit_domain
))
7726 ironlake_get_pfit_config(crtc
, pipe_config
);
7728 if (IS_HASWELL(dev
))
7729 pipe_config
->ips_enabled
= hsw_crtc_supports_ips(crtc
) &&
7730 (I915_READ(IPS_CTL
) & IPS_ENABLE
);
7732 pipe_config
->pixel_multiplier
= 1;
7740 } hdmi_audio_clock
[] = {
7741 { DIV_ROUND_UP(25200 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_25175
},
7742 { 25200, AUD_CONFIG_PIXEL_CLOCK_HDMI_25200
}, /* default per bspec */
7743 { 27000, AUD_CONFIG_PIXEL_CLOCK_HDMI_27000
},
7744 { 27000 * 1001 / 1000, AUD_CONFIG_PIXEL_CLOCK_HDMI_27027
},
7745 { 54000, AUD_CONFIG_PIXEL_CLOCK_HDMI_54000
},
7746 { 54000 * 1001 / 1000, AUD_CONFIG_PIXEL_CLOCK_HDMI_54054
},
7747 { DIV_ROUND_UP(74250 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_74176
},
7748 { 74250, AUD_CONFIG_PIXEL_CLOCK_HDMI_74250
},
7749 { DIV_ROUND_UP(148500 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_148352
},
7750 { 148500, AUD_CONFIG_PIXEL_CLOCK_HDMI_148500
},
7753 /* get AUD_CONFIG_PIXEL_CLOCK_HDMI_* value for mode */
7754 static u32
audio_config_hdmi_pixel_clock(struct drm_display_mode
*mode
)
7758 for (i
= 0; i
< ARRAY_SIZE(hdmi_audio_clock
); i
++) {
7759 if (mode
->clock
== hdmi_audio_clock
[i
].clock
)
7763 if (i
== ARRAY_SIZE(hdmi_audio_clock
)) {
7764 DRM_DEBUG_KMS("HDMI audio pixel clock setting for %d not found, falling back to defaults\n", mode
->clock
);
7768 DRM_DEBUG_KMS("Configuring HDMI audio for pixel clock %d (0x%08x)\n",
7769 hdmi_audio_clock
[i
].clock
,
7770 hdmi_audio_clock
[i
].config
);
7772 return hdmi_audio_clock
[i
].config
;
7775 static bool intel_eld_uptodate(struct drm_connector
*connector
,
7776 int reg_eldv
, uint32_t bits_eldv
,
7777 int reg_elda
, uint32_t bits_elda
,
7780 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
7781 uint8_t *eld
= connector
->eld
;
7784 i
= I915_READ(reg_eldv
);
7793 i
= I915_READ(reg_elda
);
7795 I915_WRITE(reg_elda
, i
);
7797 for (i
= 0; i
< eld
[2]; i
++)
7798 if (I915_READ(reg_edid
) != *((uint32_t *)eld
+ i
))
7804 static void g4x_write_eld(struct drm_connector
*connector
,
7805 struct drm_crtc
*crtc
,
7806 struct drm_display_mode
*mode
)
7808 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
7809 uint8_t *eld
= connector
->eld
;
7814 i
= I915_READ(G4X_AUD_VID_DID
);
7816 if (i
== INTEL_AUDIO_DEVBLC
|| i
== INTEL_AUDIO_DEVCL
)
7817 eldv
= G4X_ELDV_DEVCL_DEVBLC
;
7819 eldv
= G4X_ELDV_DEVCTG
;
7821 if (intel_eld_uptodate(connector
,
7822 G4X_AUD_CNTL_ST
, eldv
,
7823 G4X_AUD_CNTL_ST
, G4X_ELD_ADDR
,
7824 G4X_HDMIW_HDMIEDID
))
7827 i
= I915_READ(G4X_AUD_CNTL_ST
);
7828 i
&= ~(eldv
| G4X_ELD_ADDR
);
7829 len
= (i
>> 9) & 0x1f; /* ELD buffer size */
7830 I915_WRITE(G4X_AUD_CNTL_ST
, i
);
7835 len
= min_t(uint8_t, eld
[2], len
);
7836 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
7837 for (i
= 0; i
< len
; i
++)
7838 I915_WRITE(G4X_HDMIW_HDMIEDID
, *((uint32_t *)eld
+ i
));
7840 i
= I915_READ(G4X_AUD_CNTL_ST
);
7842 I915_WRITE(G4X_AUD_CNTL_ST
, i
);
7845 static void haswell_write_eld(struct drm_connector
*connector
,
7846 struct drm_crtc
*crtc
,
7847 struct drm_display_mode
*mode
)
7849 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
7850 uint8_t *eld
= connector
->eld
;
7854 int pipe
= to_intel_crtc(crtc
)->pipe
;
7857 int hdmiw_hdmiedid
= HSW_AUD_EDID_DATA(pipe
);
7858 int aud_cntl_st
= HSW_AUD_DIP_ELD_CTRL(pipe
);
7859 int aud_config
= HSW_AUD_CFG(pipe
);
7860 int aud_cntrl_st2
= HSW_AUD_PIN_ELD_CP_VLD
;
7862 /* Audio output enable */
7863 DRM_DEBUG_DRIVER("HDMI audio: enable codec\n");
7864 tmp
= I915_READ(aud_cntrl_st2
);
7865 tmp
|= (AUDIO_OUTPUT_ENABLE_A
<< (pipe
* 4));
7866 I915_WRITE(aud_cntrl_st2
, tmp
);
7867 POSTING_READ(aud_cntrl_st2
);
7869 assert_pipe_disabled(dev_priv
, to_intel_crtc(crtc
)->pipe
);
7871 /* Set ELD valid state */
7872 tmp
= I915_READ(aud_cntrl_st2
);
7873 DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%08x\n", tmp
);
7874 tmp
|= (AUDIO_ELD_VALID_A
<< (pipe
* 4));
7875 I915_WRITE(aud_cntrl_st2
, tmp
);
7876 tmp
= I915_READ(aud_cntrl_st2
);
7877 DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%08x\n", tmp
);
7879 /* Enable HDMI mode */
7880 tmp
= I915_READ(aud_config
);
7881 DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%08x\n", tmp
);
7882 /* clear N_programing_enable and N_value_index */
7883 tmp
&= ~(AUD_CONFIG_N_VALUE_INDEX
| AUD_CONFIG_N_PROG_ENABLE
);
7884 I915_WRITE(aud_config
, tmp
);
7886 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe
));
7888 eldv
= AUDIO_ELD_VALID_A
<< (pipe
* 4);
7890 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
)) {
7891 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
7892 eld
[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
7893 I915_WRITE(aud_config
, AUD_CONFIG_N_VALUE_INDEX
); /* 0x1 = DP */
7895 I915_WRITE(aud_config
, audio_config_hdmi_pixel_clock(mode
));
7898 if (intel_eld_uptodate(connector
,
7899 aud_cntrl_st2
, eldv
,
7900 aud_cntl_st
, IBX_ELD_ADDRESS
,
7904 i
= I915_READ(aud_cntrl_st2
);
7906 I915_WRITE(aud_cntrl_st2
, i
);
7911 i
= I915_READ(aud_cntl_st
);
7912 i
&= ~IBX_ELD_ADDRESS
;
7913 I915_WRITE(aud_cntl_st
, i
);
7914 i
= (i
>> 29) & DIP_PORT_SEL_MASK
; /* DIP_Port_Select, 0x1 = PortB */
7915 DRM_DEBUG_DRIVER("port num:%d\n", i
);
7917 len
= min_t(uint8_t, eld
[2], 21); /* 84 bytes of hw ELD buffer */
7918 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
7919 for (i
= 0; i
< len
; i
++)
7920 I915_WRITE(hdmiw_hdmiedid
, *((uint32_t *)eld
+ i
));
7922 i
= I915_READ(aud_cntrl_st2
);
7924 I915_WRITE(aud_cntrl_st2
, i
);
7928 static void ironlake_write_eld(struct drm_connector
*connector
,
7929 struct drm_crtc
*crtc
,
7930 struct drm_display_mode
*mode
)
7932 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
7933 uint8_t *eld
= connector
->eld
;
7941 int pipe
= to_intel_crtc(crtc
)->pipe
;
7943 if (HAS_PCH_IBX(connector
->dev
)) {
7944 hdmiw_hdmiedid
= IBX_HDMIW_HDMIEDID(pipe
);
7945 aud_config
= IBX_AUD_CFG(pipe
);
7946 aud_cntl_st
= IBX_AUD_CNTL_ST(pipe
);
7947 aud_cntrl_st2
= IBX_AUD_CNTL_ST2
;
7948 } else if (IS_VALLEYVIEW(connector
->dev
)) {
7949 hdmiw_hdmiedid
= VLV_HDMIW_HDMIEDID(pipe
);
7950 aud_config
= VLV_AUD_CFG(pipe
);
7951 aud_cntl_st
= VLV_AUD_CNTL_ST(pipe
);
7952 aud_cntrl_st2
= VLV_AUD_CNTL_ST2
;
7954 hdmiw_hdmiedid
= CPT_HDMIW_HDMIEDID(pipe
);
7955 aud_config
= CPT_AUD_CFG(pipe
);
7956 aud_cntl_st
= CPT_AUD_CNTL_ST(pipe
);
7957 aud_cntrl_st2
= CPT_AUD_CNTRL_ST2
;
7960 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe
));
7962 if (IS_VALLEYVIEW(connector
->dev
)) {
7963 struct intel_encoder
*intel_encoder
;
7964 struct intel_digital_port
*intel_dig_port
;
7966 intel_encoder
= intel_attached_encoder(connector
);
7967 intel_dig_port
= enc_to_dig_port(&intel_encoder
->base
);
7968 i
= intel_dig_port
->port
;
7970 i
= I915_READ(aud_cntl_st
);
7971 i
= (i
>> 29) & DIP_PORT_SEL_MASK
;
7972 /* DIP_Port_Select, 0x1 = PortB */
7976 DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
7977 /* operate blindly on all ports */
7978 eldv
= IBX_ELD_VALIDB
;
7979 eldv
|= IBX_ELD_VALIDB
<< 4;
7980 eldv
|= IBX_ELD_VALIDB
<< 8;
7982 DRM_DEBUG_DRIVER("ELD on port %c\n", port_name(i
));
7983 eldv
= IBX_ELD_VALIDB
<< ((i
- 1) * 4);
7986 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
)) {
7987 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
7988 eld
[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
7989 I915_WRITE(aud_config
, AUD_CONFIG_N_VALUE_INDEX
); /* 0x1 = DP */
7991 I915_WRITE(aud_config
, audio_config_hdmi_pixel_clock(mode
));
7994 if (intel_eld_uptodate(connector
,
7995 aud_cntrl_st2
, eldv
,
7996 aud_cntl_st
, IBX_ELD_ADDRESS
,
8000 i
= I915_READ(aud_cntrl_st2
);
8002 I915_WRITE(aud_cntrl_st2
, i
);
8007 i
= I915_READ(aud_cntl_st
);
8008 i
&= ~IBX_ELD_ADDRESS
;
8009 I915_WRITE(aud_cntl_st
, i
);
8011 len
= min_t(uint8_t, eld
[2], 21); /* 84 bytes of hw ELD buffer */
8012 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
8013 for (i
= 0; i
< len
; i
++)
8014 I915_WRITE(hdmiw_hdmiedid
, *((uint32_t *)eld
+ i
));
8016 i
= I915_READ(aud_cntrl_st2
);
8018 I915_WRITE(aud_cntrl_st2
, i
);
8021 void intel_write_eld(struct drm_encoder
*encoder
,
8022 struct drm_display_mode
*mode
)
8024 struct drm_crtc
*crtc
= encoder
->crtc
;
8025 struct drm_connector
*connector
;
8026 struct drm_device
*dev
= encoder
->dev
;
8027 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8029 connector
= drm_select_eld(encoder
, mode
);
8033 DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
8036 connector
->encoder
->base
.id
,
8037 connector
->encoder
->name
);
8039 connector
->eld
[6] = drm_av_sync_delay(connector
, mode
) / 2;
8041 if (dev_priv
->display
.write_eld
)
8042 dev_priv
->display
.write_eld(connector
, crtc
, mode
);
8045 static void i845_update_cursor(struct drm_crtc
*crtc
, u32 base
)
8047 struct drm_device
*dev
= crtc
->dev
;
8048 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8049 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8052 if (base
!= intel_crtc
->cursor_base
) {
8053 /* On these chipsets we can only modify the base whilst
8054 * the cursor is disabled.
8056 if (intel_crtc
->cursor_cntl
) {
8057 I915_WRITE(_CURACNTR
, 0);
8058 POSTING_READ(_CURACNTR
);
8059 intel_crtc
->cursor_cntl
= 0;
8062 I915_WRITE(_CURABASE
, base
);
8063 POSTING_READ(_CURABASE
);
8066 /* XXX width must be 64, stride 256 => 0x00 << 28 */
8069 cntl
= (CURSOR_ENABLE
|
8070 CURSOR_GAMMA_ENABLE
|
8071 CURSOR_FORMAT_ARGB
);
8072 if (intel_crtc
->cursor_cntl
!= cntl
) {
8073 I915_WRITE(_CURACNTR
, cntl
);
8074 POSTING_READ(_CURACNTR
);
8075 intel_crtc
->cursor_cntl
= cntl
;
8079 static void i9xx_update_cursor(struct drm_crtc
*crtc
, u32 base
)
8081 struct drm_device
*dev
= crtc
->dev
;
8082 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8083 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8084 int pipe
= intel_crtc
->pipe
;
8089 cntl
= MCURSOR_GAMMA_ENABLE
;
8090 switch (intel_crtc
->cursor_width
) {
8092 cntl
|= CURSOR_MODE_64_ARGB_AX
;
8095 cntl
|= CURSOR_MODE_128_ARGB_AX
;
8098 cntl
|= CURSOR_MODE_256_ARGB_AX
;
8104 cntl
|= pipe
<< 28; /* Connect to correct pipe */
8106 if (intel_crtc
->cursor_cntl
!= cntl
) {
8107 I915_WRITE(CURCNTR(pipe
), cntl
);
8108 POSTING_READ(CURCNTR(pipe
));
8109 intel_crtc
->cursor_cntl
= cntl
;
8112 /* and commit changes on next vblank */
8113 I915_WRITE(CURBASE(pipe
), base
);
8114 POSTING_READ(CURBASE(pipe
));
8117 static void ivb_update_cursor(struct drm_crtc
*crtc
, u32 base
)
8119 struct drm_device
*dev
= crtc
->dev
;
8120 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8121 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8122 int pipe
= intel_crtc
->pipe
;
8127 cntl
= MCURSOR_GAMMA_ENABLE
;
8128 switch (intel_crtc
->cursor_width
) {
8130 cntl
|= CURSOR_MODE_64_ARGB_AX
;
8133 cntl
|= CURSOR_MODE_128_ARGB_AX
;
8136 cntl
|= CURSOR_MODE_256_ARGB_AX
;
8143 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
8144 cntl
|= CURSOR_PIPE_CSC_ENABLE
;
8146 if (intel_crtc
->cursor_cntl
!= cntl
) {
8147 I915_WRITE(CURCNTR(pipe
), cntl
);
8148 POSTING_READ(CURCNTR(pipe
));
8149 intel_crtc
->cursor_cntl
= cntl
;
8152 /* and commit changes on next vblank */
8153 I915_WRITE(CURBASE(pipe
), base
);
8154 POSTING_READ(CURBASE(pipe
));
8157 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
8158 static void intel_crtc_update_cursor(struct drm_crtc
*crtc
,
8161 struct drm_device
*dev
= crtc
->dev
;
8162 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8163 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8164 int pipe
= intel_crtc
->pipe
;
8165 int x
= crtc
->cursor_x
;
8166 int y
= crtc
->cursor_y
;
8167 u32 base
= 0, pos
= 0;
8170 base
= intel_crtc
->cursor_addr
;
8172 if (x
>= intel_crtc
->config
.pipe_src_w
)
8175 if (y
>= intel_crtc
->config
.pipe_src_h
)
8179 if (x
+ intel_crtc
->cursor_width
<= 0)
8182 pos
|= CURSOR_POS_SIGN
<< CURSOR_X_SHIFT
;
8185 pos
|= x
<< CURSOR_X_SHIFT
;
8188 if (y
+ intel_crtc
->cursor_height
<= 0)
8191 pos
|= CURSOR_POS_SIGN
<< CURSOR_Y_SHIFT
;
8194 pos
|= y
<< CURSOR_Y_SHIFT
;
8196 if (base
== 0 && intel_crtc
->cursor_base
== 0)
8199 I915_WRITE(CURPOS(pipe
), pos
);
8201 if (IS_IVYBRIDGE(dev
) || IS_HASWELL(dev
) || IS_BROADWELL(dev
))
8202 ivb_update_cursor(crtc
, base
);
8203 else if (IS_845G(dev
) || IS_I865G(dev
))
8204 i845_update_cursor(crtc
, base
);
8206 i9xx_update_cursor(crtc
, base
);
8207 intel_crtc
->cursor_base
= base
;
8211 * intel_crtc_cursor_set_obj - Set cursor to specified GEM object
8213 * Note that the object's reference will be consumed if the update fails. If
8214 * the update succeeds, the reference of the old object (if any) will be
8217 static int intel_crtc_cursor_set_obj(struct drm_crtc
*crtc
,
8218 struct drm_i915_gem_object
*obj
,
8219 uint32_t width
, uint32_t height
)
8221 struct drm_device
*dev
= crtc
->dev
;
8222 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8223 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8224 enum pipe pipe
= intel_crtc
->pipe
;
8229 /* if we want to turn off the cursor ignore width and height */
8231 DRM_DEBUG_KMS("cursor off\n");
8234 mutex_lock(&dev
->struct_mutex
);
8238 /* Check for which cursor types we support */
8239 if (!((width
== 64 && height
== 64) ||
8240 (width
== 128 && height
== 128 && !IS_GEN2(dev
)) ||
8241 (width
== 256 && height
== 256 && !IS_GEN2(dev
)))) {
8242 DRM_DEBUG("Cursor dimension not supported\n");
8246 if (obj
->base
.size
< width
* height
* 4) {
8247 DRM_DEBUG_KMS("buffer is too small\n");
8252 /* we only need to pin inside GTT if cursor is non-phy */
8253 mutex_lock(&dev
->struct_mutex
);
8254 if (!INTEL_INFO(dev
)->cursor_needs_physical
) {
8257 if (obj
->tiling_mode
) {
8258 DRM_DEBUG_KMS("cursor cannot be tiled\n");
8263 /* Note that the w/a also requires 2 PTE of padding following
8264 * the bo. We currently fill all unused PTE with the shadow
8265 * page and so we should always have valid PTE following the
8266 * cursor preventing the VT-d warning.
8269 if (need_vtd_wa(dev
))
8270 alignment
= 64*1024;
8272 ret
= i915_gem_object_pin_to_display_plane(obj
, alignment
, NULL
);
8274 DRM_DEBUG_KMS("failed to move cursor bo into the GTT\n");
8278 ret
= i915_gem_object_put_fence(obj
);
8280 DRM_DEBUG_KMS("failed to release fence for cursor");
8284 addr
= i915_gem_obj_ggtt_offset(obj
);
8286 int align
= IS_I830(dev
) ? 16 * 1024 : 256;
8287 ret
= i915_gem_object_attach_phys(obj
, align
);
8289 DRM_DEBUG_KMS("failed to attach phys object\n");
8292 addr
= obj
->phys_handle
->busaddr
;
8296 I915_WRITE(CURSIZE
, (height
<< 12) | width
);
8299 if (intel_crtc
->cursor_bo
) {
8300 if (!INTEL_INFO(dev
)->cursor_needs_physical
)
8301 i915_gem_object_unpin_from_display_plane(intel_crtc
->cursor_bo
);
8304 i915_gem_track_fb(intel_crtc
->cursor_bo
, obj
,
8305 INTEL_FRONTBUFFER_CURSOR(pipe
));
8306 mutex_unlock(&dev
->struct_mutex
);
8308 old_width
= intel_crtc
->cursor_width
;
8310 intel_crtc
->cursor_addr
= addr
;
8311 intel_crtc
->cursor_bo
= obj
;
8312 intel_crtc
->cursor_width
= width
;
8313 intel_crtc
->cursor_height
= height
;
8315 if (intel_crtc
->active
) {
8316 if (old_width
!= width
)
8317 intel_update_watermarks(crtc
);
8318 intel_crtc_update_cursor(crtc
, intel_crtc
->cursor_bo
!= NULL
);
8321 intel_frontbuffer_flip(dev
, INTEL_FRONTBUFFER_CURSOR(pipe
));
8325 i915_gem_object_unpin_from_display_plane(obj
);
8327 mutex_unlock(&dev
->struct_mutex
);
8329 drm_gem_object_unreference_unlocked(&obj
->base
);
8333 static void intel_crtc_gamma_set(struct drm_crtc
*crtc
, u16
*red
, u16
*green
,
8334 u16
*blue
, uint32_t start
, uint32_t size
)
8336 int end
= (start
+ size
> 256) ? 256 : start
+ size
, i
;
8337 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8339 for (i
= start
; i
< end
; i
++) {
8340 intel_crtc
->lut_r
[i
] = red
[i
] >> 8;
8341 intel_crtc
->lut_g
[i
] = green
[i
] >> 8;
8342 intel_crtc
->lut_b
[i
] = blue
[i
] >> 8;
8345 intel_crtc_load_lut(crtc
);
8348 /* VESA 640x480x72Hz mode to set on the pipe */
8349 static struct drm_display_mode load_detect_mode
= {
8350 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT
, 31500, 640, 664,
8351 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
8354 struct drm_framebuffer
*
8355 __intel_framebuffer_create(struct drm_device
*dev
,
8356 struct drm_mode_fb_cmd2
*mode_cmd
,
8357 struct drm_i915_gem_object
*obj
)
8359 struct intel_framebuffer
*intel_fb
;
8362 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
8364 drm_gem_object_unreference_unlocked(&obj
->base
);
8365 return ERR_PTR(-ENOMEM
);
8368 ret
= intel_framebuffer_init(dev
, intel_fb
, mode_cmd
, obj
);
8372 return &intel_fb
->base
;
8374 drm_gem_object_unreference_unlocked(&obj
->base
);
8377 return ERR_PTR(ret
);
8380 static struct drm_framebuffer
*
8381 intel_framebuffer_create(struct drm_device
*dev
,
8382 struct drm_mode_fb_cmd2
*mode_cmd
,
8383 struct drm_i915_gem_object
*obj
)
8385 struct drm_framebuffer
*fb
;
8388 ret
= i915_mutex_lock_interruptible(dev
);
8390 return ERR_PTR(ret
);
8391 fb
= __intel_framebuffer_create(dev
, mode_cmd
, obj
);
8392 mutex_unlock(&dev
->struct_mutex
);
8398 intel_framebuffer_pitch_for_width(int width
, int bpp
)
8400 u32 pitch
= DIV_ROUND_UP(width
* bpp
, 8);
8401 return ALIGN(pitch
, 64);
8405 intel_framebuffer_size_for_mode(struct drm_display_mode
*mode
, int bpp
)
8407 u32 pitch
= intel_framebuffer_pitch_for_width(mode
->hdisplay
, bpp
);
8408 return PAGE_ALIGN(pitch
* mode
->vdisplay
);
8411 static struct drm_framebuffer
*
8412 intel_framebuffer_create_for_mode(struct drm_device
*dev
,
8413 struct drm_display_mode
*mode
,
8416 struct drm_i915_gem_object
*obj
;
8417 struct drm_mode_fb_cmd2 mode_cmd
= { 0 };
8419 obj
= i915_gem_alloc_object(dev
,
8420 intel_framebuffer_size_for_mode(mode
, bpp
));
8422 return ERR_PTR(-ENOMEM
);
8424 mode_cmd
.width
= mode
->hdisplay
;
8425 mode_cmd
.height
= mode
->vdisplay
;
8426 mode_cmd
.pitches
[0] = intel_framebuffer_pitch_for_width(mode_cmd
.width
,
8428 mode_cmd
.pixel_format
= drm_mode_legacy_fb_format(bpp
, depth
);
8430 return intel_framebuffer_create(dev
, &mode_cmd
, obj
);
8433 static struct drm_framebuffer
*
8434 mode_fits_in_fbdev(struct drm_device
*dev
,
8435 struct drm_display_mode
*mode
)
8437 #ifdef CONFIG_DRM_I915_FBDEV
8438 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8439 struct drm_i915_gem_object
*obj
;
8440 struct drm_framebuffer
*fb
;
8442 if (!dev_priv
->fbdev
)
8445 if (!dev_priv
->fbdev
->fb
)
8448 obj
= dev_priv
->fbdev
->fb
->obj
;
8451 fb
= &dev_priv
->fbdev
->fb
->base
;
8452 if (fb
->pitches
[0] < intel_framebuffer_pitch_for_width(mode
->hdisplay
,
8453 fb
->bits_per_pixel
))
8456 if (obj
->base
.size
< mode
->vdisplay
* fb
->pitches
[0])
8465 bool intel_get_load_detect_pipe(struct drm_connector
*connector
,
8466 struct drm_display_mode
*mode
,
8467 struct intel_load_detect_pipe
*old
,
8468 struct drm_modeset_acquire_ctx
*ctx
)
8470 struct intel_crtc
*intel_crtc
;
8471 struct intel_encoder
*intel_encoder
=
8472 intel_attached_encoder(connector
);
8473 struct drm_crtc
*possible_crtc
;
8474 struct drm_encoder
*encoder
= &intel_encoder
->base
;
8475 struct drm_crtc
*crtc
= NULL
;
8476 struct drm_device
*dev
= encoder
->dev
;
8477 struct drm_framebuffer
*fb
;
8478 struct drm_mode_config
*config
= &dev
->mode_config
;
8481 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
8482 connector
->base
.id
, connector
->name
,
8483 encoder
->base
.id
, encoder
->name
);
8485 drm_modeset_acquire_init(ctx
, 0);
8488 ret
= drm_modeset_lock(&config
->connection_mutex
, ctx
);
8493 * Algorithm gets a little messy:
8495 * - if the connector already has an assigned crtc, use it (but make
8496 * sure it's on first)
8498 * - try to find the first unused crtc that can drive this connector,
8499 * and use that if we find one
8502 /* See if we already have a CRTC for this connector */
8503 if (encoder
->crtc
) {
8504 crtc
= encoder
->crtc
;
8506 ret
= drm_modeset_lock(&crtc
->mutex
, ctx
);
8510 old
->dpms_mode
= connector
->dpms
;
8511 old
->load_detect_temp
= false;
8513 /* Make sure the crtc and connector are running */
8514 if (connector
->dpms
!= DRM_MODE_DPMS_ON
)
8515 connector
->funcs
->dpms(connector
, DRM_MODE_DPMS_ON
);
8520 /* Find an unused one (if possible) */
8521 for_each_crtc(dev
, possible_crtc
) {
8523 if (!(encoder
->possible_crtcs
& (1 << i
)))
8525 if (!possible_crtc
->enabled
) {
8526 crtc
= possible_crtc
;
8532 * If we didn't find an unused CRTC, don't use any.
8535 DRM_DEBUG_KMS("no pipe available for load-detect\n");
8539 ret
= drm_modeset_lock(&crtc
->mutex
, ctx
);
8542 intel_encoder
->new_crtc
= to_intel_crtc(crtc
);
8543 to_intel_connector(connector
)->new_encoder
= intel_encoder
;
8545 intel_crtc
= to_intel_crtc(crtc
);
8546 intel_crtc
->new_enabled
= true;
8547 intel_crtc
->new_config
= &intel_crtc
->config
;
8548 old
->dpms_mode
= connector
->dpms
;
8549 old
->load_detect_temp
= true;
8550 old
->release_fb
= NULL
;
8553 mode
= &load_detect_mode
;
8555 /* We need a framebuffer large enough to accommodate all accesses
8556 * that the plane may generate whilst we perform load detection.
8557 * We can not rely on the fbcon either being present (we get called
8558 * during its initialisation to detect all boot displays, or it may
8559 * not even exist) or that it is large enough to satisfy the
8562 fb
= mode_fits_in_fbdev(dev
, mode
);
8564 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
8565 fb
= intel_framebuffer_create_for_mode(dev
, mode
, 24, 32);
8566 old
->release_fb
= fb
;
8568 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
8570 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
8574 if (intel_set_mode(crtc
, mode
, 0, 0, fb
)) {
8575 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
8576 if (old
->release_fb
)
8577 old
->release_fb
->funcs
->destroy(old
->release_fb
);
8581 /* let the connector get through one full cycle before testing */
8582 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
8586 intel_crtc
->new_enabled
= crtc
->enabled
;
8587 if (intel_crtc
->new_enabled
)
8588 intel_crtc
->new_config
= &intel_crtc
->config
;
8590 intel_crtc
->new_config
= NULL
;
8592 if (ret
== -EDEADLK
) {
8593 drm_modeset_backoff(ctx
);
8597 drm_modeset_drop_locks(ctx
);
8598 drm_modeset_acquire_fini(ctx
);
8603 void intel_release_load_detect_pipe(struct drm_connector
*connector
,
8604 struct intel_load_detect_pipe
*old
,
8605 struct drm_modeset_acquire_ctx
*ctx
)
8607 struct intel_encoder
*intel_encoder
=
8608 intel_attached_encoder(connector
);
8609 struct drm_encoder
*encoder
= &intel_encoder
->base
;
8610 struct drm_crtc
*crtc
= encoder
->crtc
;
8611 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8613 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
8614 connector
->base
.id
, connector
->name
,
8615 encoder
->base
.id
, encoder
->name
);
8617 if (old
->load_detect_temp
) {
8618 to_intel_connector(connector
)->new_encoder
= NULL
;
8619 intel_encoder
->new_crtc
= NULL
;
8620 intel_crtc
->new_enabled
= false;
8621 intel_crtc
->new_config
= NULL
;
8622 intel_set_mode(crtc
, NULL
, 0, 0, NULL
);
8624 if (old
->release_fb
) {
8625 drm_framebuffer_unregister_private(old
->release_fb
);
8626 drm_framebuffer_unreference(old
->release_fb
);
8633 /* Switch crtc and encoder back off if necessary */
8634 if (old
->dpms_mode
!= DRM_MODE_DPMS_ON
)
8635 connector
->funcs
->dpms(connector
, old
->dpms_mode
);
8638 drm_modeset_drop_locks(ctx
);
8639 drm_modeset_acquire_fini(ctx
);
8642 static int i9xx_pll_refclk(struct drm_device
*dev
,
8643 const struct intel_crtc_config
*pipe_config
)
8645 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8646 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
8648 if ((dpll
& PLL_REF_INPUT_MASK
) == PLLB_REF_INPUT_SPREADSPECTRUMIN
)
8649 return dev_priv
->vbt
.lvds_ssc_freq
;
8650 else if (HAS_PCH_SPLIT(dev
))
8652 else if (!IS_GEN2(dev
))
8658 /* Returns the clock of the currently programmed mode of the given pipe. */
8659 static void i9xx_crtc_clock_get(struct intel_crtc
*crtc
,
8660 struct intel_crtc_config
*pipe_config
)
8662 struct drm_device
*dev
= crtc
->base
.dev
;
8663 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8664 int pipe
= pipe_config
->cpu_transcoder
;
8665 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
8667 intel_clock_t clock
;
8668 int refclk
= i9xx_pll_refclk(dev
, pipe_config
);
8670 if ((dpll
& DISPLAY_RATE_SELECT_FPA1
) == 0)
8671 fp
= pipe_config
->dpll_hw_state
.fp0
;
8673 fp
= pipe_config
->dpll_hw_state
.fp1
;
8675 clock
.m1
= (fp
& FP_M1_DIV_MASK
) >> FP_M1_DIV_SHIFT
;
8676 if (IS_PINEVIEW(dev
)) {
8677 clock
.n
= ffs((fp
& FP_N_PINEVIEW_DIV_MASK
) >> FP_N_DIV_SHIFT
) - 1;
8678 clock
.m2
= (fp
& FP_M2_PINEVIEW_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
8680 clock
.n
= (fp
& FP_N_DIV_MASK
) >> FP_N_DIV_SHIFT
;
8681 clock
.m2
= (fp
& FP_M2_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
8684 if (!IS_GEN2(dev
)) {
8685 if (IS_PINEVIEW(dev
))
8686 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW
) >>
8687 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
);
8689 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK
) >>
8690 DPLL_FPA01_P1_POST_DIV_SHIFT
);
8692 switch (dpll
& DPLL_MODE_MASK
) {
8693 case DPLLB_MODE_DAC_SERIAL
:
8694 clock
.p2
= dpll
& DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
?
8697 case DPLLB_MODE_LVDS
:
8698 clock
.p2
= dpll
& DPLLB_LVDS_P2_CLOCK_DIV_7
?
8702 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
8703 "mode\n", (int)(dpll
& DPLL_MODE_MASK
));
8707 if (IS_PINEVIEW(dev
))
8708 pineview_clock(refclk
, &clock
);
8710 i9xx_clock(refclk
, &clock
);
8712 u32 lvds
= IS_I830(dev
) ? 0 : I915_READ(LVDS
);
8713 bool is_lvds
= (pipe
== 1) && (lvds
& LVDS_PORT_EN
);
8716 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS
) >>
8717 DPLL_FPA01_P1_POST_DIV_SHIFT
);
8719 if (lvds
& LVDS_CLKB_POWER_UP
)
8724 if (dpll
& PLL_P1_DIVIDE_BY_TWO
)
8727 clock
.p1
= ((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830
) >>
8728 DPLL_FPA01_P1_POST_DIV_SHIFT
) + 2;
8730 if (dpll
& PLL_P2_DIVIDE_BY_4
)
8736 i9xx_clock(refclk
, &clock
);
8740 * This value includes pixel_multiplier. We will use
8741 * port_clock to compute adjusted_mode.crtc_clock in the
8742 * encoder's get_config() function.
8744 pipe_config
->port_clock
= clock
.dot
;
8747 int intel_dotclock_calculate(int link_freq
,
8748 const struct intel_link_m_n
*m_n
)
8751 * The calculation for the data clock is:
8752 * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp
8753 * But we want to avoid losing precison if possible, so:
8754 * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp))
8756 * and the link clock is simpler:
8757 * link_clock = (m * link_clock) / n
8763 return div_u64((u64
)m_n
->link_m
* link_freq
, m_n
->link_n
);
8766 static void ironlake_pch_clock_get(struct intel_crtc
*crtc
,
8767 struct intel_crtc_config
*pipe_config
)
8769 struct drm_device
*dev
= crtc
->base
.dev
;
8771 /* read out port_clock from the DPLL */
8772 i9xx_crtc_clock_get(crtc
, pipe_config
);
8775 * This value does not include pixel_multiplier.
8776 * We will check that port_clock and adjusted_mode.crtc_clock
8777 * agree once we know their relationship in the encoder's
8778 * get_config() function.
8780 pipe_config
->adjusted_mode
.crtc_clock
=
8781 intel_dotclock_calculate(intel_fdi_link_freq(dev
) * 10000,
8782 &pipe_config
->fdi_m_n
);
8785 /** Returns the currently programmed mode of the given pipe. */
8786 struct drm_display_mode
*intel_crtc_mode_get(struct drm_device
*dev
,
8787 struct drm_crtc
*crtc
)
8789 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8790 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8791 enum transcoder cpu_transcoder
= intel_crtc
->config
.cpu_transcoder
;
8792 struct drm_display_mode
*mode
;
8793 struct intel_crtc_config pipe_config
;
8794 int htot
= I915_READ(HTOTAL(cpu_transcoder
));
8795 int hsync
= I915_READ(HSYNC(cpu_transcoder
));
8796 int vtot
= I915_READ(VTOTAL(cpu_transcoder
));
8797 int vsync
= I915_READ(VSYNC(cpu_transcoder
));
8798 enum pipe pipe
= intel_crtc
->pipe
;
8800 mode
= kzalloc(sizeof(*mode
), GFP_KERNEL
);
8805 * Construct a pipe_config sufficient for getting the clock info
8806 * back out of crtc_clock_get.
8808 * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need
8809 * to use a real value here instead.
8811 pipe_config
.cpu_transcoder
= (enum transcoder
) pipe
;
8812 pipe_config
.pixel_multiplier
= 1;
8813 pipe_config
.dpll_hw_state
.dpll
= I915_READ(DPLL(pipe
));
8814 pipe_config
.dpll_hw_state
.fp0
= I915_READ(FP0(pipe
));
8815 pipe_config
.dpll_hw_state
.fp1
= I915_READ(FP1(pipe
));
8816 i9xx_crtc_clock_get(intel_crtc
, &pipe_config
);
8818 mode
->clock
= pipe_config
.port_clock
/ pipe_config
.pixel_multiplier
;
8819 mode
->hdisplay
= (htot
& 0xffff) + 1;
8820 mode
->htotal
= ((htot
& 0xffff0000) >> 16) + 1;
8821 mode
->hsync_start
= (hsync
& 0xffff) + 1;
8822 mode
->hsync_end
= ((hsync
& 0xffff0000) >> 16) + 1;
8823 mode
->vdisplay
= (vtot
& 0xffff) + 1;
8824 mode
->vtotal
= ((vtot
& 0xffff0000) >> 16) + 1;
8825 mode
->vsync_start
= (vsync
& 0xffff) + 1;
8826 mode
->vsync_end
= ((vsync
& 0xffff0000) >> 16) + 1;
8828 drm_mode_set_name(mode
);
8833 static void intel_increase_pllclock(struct drm_device
*dev
,
8836 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8837 int dpll_reg
= DPLL(pipe
);
8840 if (!HAS_GMCH_DISPLAY(dev
))
8843 if (!dev_priv
->lvds_downclock_avail
)
8846 dpll
= I915_READ(dpll_reg
);
8847 if (!HAS_PIPE_CXSR(dev
) && (dpll
& DISPLAY_RATE_SELECT_FPA1
)) {
8848 DRM_DEBUG_DRIVER("upclocking LVDS\n");
8850 assert_panel_unlocked(dev_priv
, pipe
);
8852 dpll
&= ~DISPLAY_RATE_SELECT_FPA1
;
8853 I915_WRITE(dpll_reg
, dpll
);
8854 intel_wait_for_vblank(dev
, pipe
);
8856 dpll
= I915_READ(dpll_reg
);
8857 if (dpll
& DISPLAY_RATE_SELECT_FPA1
)
8858 DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
8862 static void intel_decrease_pllclock(struct drm_crtc
*crtc
)
8864 struct drm_device
*dev
= crtc
->dev
;
8865 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8866 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8868 if (!HAS_GMCH_DISPLAY(dev
))
8871 if (!dev_priv
->lvds_downclock_avail
)
8875 * Since this is called by a timer, we should never get here in
8878 if (!HAS_PIPE_CXSR(dev
) && intel_crtc
->lowfreq_avail
) {
8879 int pipe
= intel_crtc
->pipe
;
8880 int dpll_reg
= DPLL(pipe
);
8883 DRM_DEBUG_DRIVER("downclocking LVDS\n");
8885 assert_panel_unlocked(dev_priv
, pipe
);
8887 dpll
= I915_READ(dpll_reg
);
8888 dpll
|= DISPLAY_RATE_SELECT_FPA1
;
8889 I915_WRITE(dpll_reg
, dpll
);
8890 intel_wait_for_vblank(dev
, pipe
);
8891 dpll
= I915_READ(dpll_reg
);
8892 if (!(dpll
& DISPLAY_RATE_SELECT_FPA1
))
8893 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
8898 void intel_mark_busy(struct drm_device
*dev
)
8900 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8902 if (dev_priv
->mm
.busy
)
8905 intel_runtime_pm_get(dev_priv
);
8906 i915_update_gfx_val(dev_priv
);
8907 dev_priv
->mm
.busy
= true;
8910 void intel_mark_idle(struct drm_device
*dev
)
8912 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8913 struct drm_crtc
*crtc
;
8915 if (!dev_priv
->mm
.busy
)
8918 dev_priv
->mm
.busy
= false;
8920 if (!i915
.powersave
)
8923 for_each_crtc(dev
, crtc
) {
8924 if (!crtc
->primary
->fb
)
8927 intel_decrease_pllclock(crtc
);
8930 if (INTEL_INFO(dev
)->gen
>= 6)
8931 gen6_rps_idle(dev
->dev_private
);
8934 intel_runtime_pm_put(dev_priv
);
8939 * intel_mark_fb_busy - mark given planes as busy
8941 * @frontbuffer_bits: bits for the affected planes
8942 * @ring: optional ring for asynchronous commands
8944 * This function gets called every time the screen contents change. It can be
8945 * used to keep e.g. the update rate at the nominal refresh rate with DRRS.
8947 static void intel_mark_fb_busy(struct drm_device
*dev
,
8948 unsigned frontbuffer_bits
,
8949 struct intel_engine_cs
*ring
)
8953 if (!i915
.powersave
)
8956 for_each_pipe(pipe
) {
8957 if (!(frontbuffer_bits
& INTEL_FRONTBUFFER_ALL_MASK(pipe
)))
8960 intel_increase_pllclock(dev
, pipe
);
8961 if (ring
&& intel_fbc_enabled(dev
))
8962 ring
->fbc_dirty
= true;
8967 * intel_fb_obj_invalidate - invalidate frontbuffer object
8968 * @obj: GEM object to invalidate
8969 * @ring: set for asynchronous rendering
8971 * This function gets called every time rendering on the given object starts and
8972 * frontbuffer caching (fbc, low refresh rate for DRRS, panel self refresh) must
8973 * be invalidated. If @ring is non-NULL any subsequent invalidation will be delayed
8974 * until the rendering completes or a flip on this frontbuffer plane is
8977 void intel_fb_obj_invalidate(struct drm_i915_gem_object
*obj
,
8978 struct intel_engine_cs
*ring
)
8980 struct drm_device
*dev
= obj
->base
.dev
;
8981 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8983 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
8985 if (!obj
->frontbuffer_bits
)
8989 mutex_lock(&dev_priv
->fb_tracking
.lock
);
8990 dev_priv
->fb_tracking
.busy_bits
8991 |= obj
->frontbuffer_bits
;
8992 dev_priv
->fb_tracking
.flip_bits
8993 &= ~obj
->frontbuffer_bits
;
8994 mutex_unlock(&dev_priv
->fb_tracking
.lock
);
8997 intel_mark_fb_busy(dev
, obj
->frontbuffer_bits
, ring
);
8999 intel_edp_psr_invalidate(dev
, obj
->frontbuffer_bits
);
9003 * intel_frontbuffer_flush - flush frontbuffer
9005 * @frontbuffer_bits: frontbuffer plane tracking bits
9007 * This function gets called every time rendering on the given planes has
9008 * completed and frontbuffer caching can be started again. Flushes will get
9009 * delayed if they're blocked by some oustanding asynchronous rendering.
9011 * Can be called without any locks held.
9013 void intel_frontbuffer_flush(struct drm_device
*dev
,
9014 unsigned frontbuffer_bits
)
9016 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9018 /* Delay flushing when rings are still busy.*/
9019 mutex_lock(&dev_priv
->fb_tracking
.lock
);
9020 frontbuffer_bits
&= ~dev_priv
->fb_tracking
.busy_bits
;
9021 mutex_unlock(&dev_priv
->fb_tracking
.lock
);
9023 intel_mark_fb_busy(dev
, frontbuffer_bits
, NULL
);
9025 intel_edp_psr_flush(dev
, frontbuffer_bits
);
9029 * intel_fb_obj_flush - flush frontbuffer object
9030 * @obj: GEM object to flush
9031 * @retire: set when retiring asynchronous rendering
9033 * This function gets called every time rendering on the given object has
9034 * completed and frontbuffer caching can be started again. If @retire is true
9035 * then any delayed flushes will be unblocked.
9037 void intel_fb_obj_flush(struct drm_i915_gem_object
*obj
,
9040 struct drm_device
*dev
= obj
->base
.dev
;
9041 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9042 unsigned frontbuffer_bits
;
9044 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
9046 if (!obj
->frontbuffer_bits
)
9049 frontbuffer_bits
= obj
->frontbuffer_bits
;
9052 mutex_lock(&dev_priv
->fb_tracking
.lock
);
9053 /* Filter out new bits since rendering started. */
9054 frontbuffer_bits
&= dev_priv
->fb_tracking
.busy_bits
;
9056 dev_priv
->fb_tracking
.busy_bits
&= ~frontbuffer_bits
;
9057 mutex_unlock(&dev_priv
->fb_tracking
.lock
);
9060 intel_frontbuffer_flush(dev
, frontbuffer_bits
);
9064 * intel_frontbuffer_flip_prepare - prepare asnychronous frontbuffer flip
9066 * @frontbuffer_bits: frontbuffer plane tracking bits
9068 * This function gets called after scheduling a flip on @obj. The actual
9069 * frontbuffer flushing will be delayed until completion is signalled with
9070 * intel_frontbuffer_flip_complete. If an invalidate happens in between this
9071 * flush will be cancelled.
9073 * Can be called without any locks held.
9075 void intel_frontbuffer_flip_prepare(struct drm_device
*dev
,
9076 unsigned frontbuffer_bits
)
9078 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9080 mutex_lock(&dev_priv
->fb_tracking
.lock
);
9081 dev_priv
->fb_tracking
.flip_bits
9082 |= frontbuffer_bits
;
9083 mutex_unlock(&dev_priv
->fb_tracking
.lock
);
9087 * intel_frontbuffer_flip_complete - complete asynchronous frontbuffer flush
9089 * @frontbuffer_bits: frontbuffer plane tracking bits
9091 * This function gets called after the flip has been latched and will complete
9092 * on the next vblank. It will execute the fush if it hasn't been cancalled yet.
9094 * Can be called without any locks held.
9096 void intel_frontbuffer_flip_complete(struct drm_device
*dev
,
9097 unsigned frontbuffer_bits
)
9099 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9101 mutex_lock(&dev_priv
->fb_tracking
.lock
);
9102 /* Mask any cancelled flips. */
9103 frontbuffer_bits
&= dev_priv
->fb_tracking
.flip_bits
;
9104 dev_priv
->fb_tracking
.flip_bits
&= ~frontbuffer_bits
;
9105 mutex_unlock(&dev_priv
->fb_tracking
.lock
);
9107 intel_frontbuffer_flush(dev
, frontbuffer_bits
);
9110 static void intel_crtc_destroy(struct drm_crtc
*crtc
)
9112 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9113 struct drm_device
*dev
= crtc
->dev
;
9114 struct intel_unpin_work
*work
;
9115 unsigned long flags
;
9117 spin_lock_irqsave(&dev
->event_lock
, flags
);
9118 work
= intel_crtc
->unpin_work
;
9119 intel_crtc
->unpin_work
= NULL
;
9120 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9123 cancel_work_sync(&work
->work
);
9127 drm_crtc_cleanup(crtc
);
9132 static void intel_unpin_work_fn(struct work_struct
*__work
)
9134 struct intel_unpin_work
*work
=
9135 container_of(__work
, struct intel_unpin_work
, work
);
9136 struct drm_device
*dev
= work
->crtc
->dev
;
9137 enum pipe pipe
= to_intel_crtc(work
->crtc
)->pipe
;
9139 mutex_lock(&dev
->struct_mutex
);
9140 intel_unpin_fb_obj(work
->old_fb_obj
);
9141 drm_gem_object_unreference(&work
->pending_flip_obj
->base
);
9142 drm_gem_object_unreference(&work
->old_fb_obj
->base
);
9144 intel_update_fbc(dev
);
9145 mutex_unlock(&dev
->struct_mutex
);
9147 intel_frontbuffer_flip_complete(dev
, INTEL_FRONTBUFFER_PRIMARY(pipe
));
9149 BUG_ON(atomic_read(&to_intel_crtc(work
->crtc
)->unpin_work_count
) == 0);
9150 atomic_dec(&to_intel_crtc(work
->crtc
)->unpin_work_count
);
9155 static void do_intel_finish_page_flip(struct drm_device
*dev
,
9156 struct drm_crtc
*crtc
)
9158 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9159 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9160 struct intel_unpin_work
*work
;
9161 unsigned long flags
;
9163 /* Ignore early vblank irqs */
9164 if (intel_crtc
== NULL
)
9167 spin_lock_irqsave(&dev
->event_lock
, flags
);
9168 work
= intel_crtc
->unpin_work
;
9170 /* Ensure we don't miss a work->pending update ... */
9173 if (work
== NULL
|| atomic_read(&work
->pending
) < INTEL_FLIP_COMPLETE
) {
9174 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9178 /* and that the unpin work is consistent wrt ->pending. */
9181 intel_crtc
->unpin_work
= NULL
;
9184 drm_send_vblank_event(dev
, intel_crtc
->pipe
, work
->event
);
9186 drm_crtc_vblank_put(crtc
);
9188 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9190 wake_up_all(&dev_priv
->pending_flip_queue
);
9192 queue_work(dev_priv
->wq
, &work
->work
);
9194 trace_i915_flip_complete(intel_crtc
->plane
, work
->pending_flip_obj
);
9197 void intel_finish_page_flip(struct drm_device
*dev
, int pipe
)
9199 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9200 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
9202 do_intel_finish_page_flip(dev
, crtc
);
9205 void intel_finish_page_flip_plane(struct drm_device
*dev
, int plane
)
9207 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9208 struct drm_crtc
*crtc
= dev_priv
->plane_to_crtc_mapping
[plane
];
9210 do_intel_finish_page_flip(dev
, crtc
);
9213 /* Is 'a' after or equal to 'b'? */
9214 static bool g4x_flip_count_after_eq(u32 a
, u32 b
)
9216 return !((a
- b
) & 0x80000000);
9219 static bool page_flip_finished(struct intel_crtc
*crtc
)
9221 struct drm_device
*dev
= crtc
->base
.dev
;
9222 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9225 * The relevant registers doen't exist on pre-ctg.
9226 * As the flip done interrupt doesn't trigger for mmio
9227 * flips on gmch platforms, a flip count check isn't
9228 * really needed there. But since ctg has the registers,
9229 * include it in the check anyway.
9231 if (INTEL_INFO(dev
)->gen
< 5 && !IS_G4X(dev
))
9235 * A DSPSURFLIVE check isn't enough in case the mmio and CS flips
9236 * used the same base address. In that case the mmio flip might
9237 * have completed, but the CS hasn't even executed the flip yet.
9239 * A flip count check isn't enough as the CS might have updated
9240 * the base address just after start of vblank, but before we
9241 * managed to process the interrupt. This means we'd complete the
9244 * Combining both checks should get us a good enough result. It may
9245 * still happen that the CS flip has been executed, but has not
9246 * yet actually completed. But in case the base address is the same
9247 * anyway, we don't really care.
9249 return (I915_READ(DSPSURFLIVE(crtc
->plane
)) & ~0xfff) ==
9250 crtc
->unpin_work
->gtt_offset
&&
9251 g4x_flip_count_after_eq(I915_READ(PIPE_FLIPCOUNT_GM45(crtc
->pipe
)),
9252 crtc
->unpin_work
->flip_count
);
9255 void intel_prepare_page_flip(struct drm_device
*dev
, int plane
)
9257 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9258 struct intel_crtc
*intel_crtc
=
9259 to_intel_crtc(dev_priv
->plane_to_crtc_mapping
[plane
]);
9260 unsigned long flags
;
9262 /* NB: An MMIO update of the plane base pointer will also
9263 * generate a page-flip completion irq, i.e. every modeset
9264 * is also accompanied by a spurious intel_prepare_page_flip().
9266 spin_lock_irqsave(&dev
->event_lock
, flags
);
9267 if (intel_crtc
->unpin_work
&& page_flip_finished(intel_crtc
))
9268 atomic_inc_not_zero(&intel_crtc
->unpin_work
->pending
);
9269 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9272 static inline void intel_mark_page_flip_active(struct intel_crtc
*intel_crtc
)
9274 /* Ensure that the work item is consistent when activating it ... */
9276 atomic_set(&intel_crtc
->unpin_work
->pending
, INTEL_FLIP_PENDING
);
9277 /* and that it is marked active as soon as the irq could fire. */
9281 static int intel_gen2_queue_flip(struct drm_device
*dev
,
9282 struct drm_crtc
*crtc
,
9283 struct drm_framebuffer
*fb
,
9284 struct drm_i915_gem_object
*obj
,
9285 struct intel_engine_cs
*ring
,
9288 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9292 ret
= intel_ring_begin(ring
, 6);
9296 /* Can't queue multiple flips, so wait for the previous
9297 * one to finish before executing the next.
9299 if (intel_crtc
->plane
)
9300 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
9302 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
9303 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
9304 intel_ring_emit(ring
, MI_NOOP
);
9305 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
9306 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
9307 intel_ring_emit(ring
, fb
->pitches
[0]);
9308 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9309 intel_ring_emit(ring
, 0); /* aux display base address, unused */
9311 intel_mark_page_flip_active(intel_crtc
);
9312 __intel_ring_advance(ring
);
9316 static int intel_gen3_queue_flip(struct drm_device
*dev
,
9317 struct drm_crtc
*crtc
,
9318 struct drm_framebuffer
*fb
,
9319 struct drm_i915_gem_object
*obj
,
9320 struct intel_engine_cs
*ring
,
9323 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9327 ret
= intel_ring_begin(ring
, 6);
9331 if (intel_crtc
->plane
)
9332 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
9334 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
9335 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
9336 intel_ring_emit(ring
, MI_NOOP
);
9337 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
|
9338 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
9339 intel_ring_emit(ring
, fb
->pitches
[0]);
9340 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9341 intel_ring_emit(ring
, MI_NOOP
);
9343 intel_mark_page_flip_active(intel_crtc
);
9344 __intel_ring_advance(ring
);
9348 static int intel_gen4_queue_flip(struct drm_device
*dev
,
9349 struct drm_crtc
*crtc
,
9350 struct drm_framebuffer
*fb
,
9351 struct drm_i915_gem_object
*obj
,
9352 struct intel_engine_cs
*ring
,
9355 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9356 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9357 uint32_t pf
, pipesrc
;
9360 ret
= intel_ring_begin(ring
, 4);
9364 /* i965+ uses the linear or tiled offsets from the
9365 * Display Registers (which do not change across a page-flip)
9366 * so we need only reprogram the base address.
9368 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
9369 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
9370 intel_ring_emit(ring
, fb
->pitches
[0]);
9371 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
|
9374 /* XXX Enabling the panel-fitter across page-flip is so far
9375 * untested on non-native modes, so ignore it for now.
9376 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
9379 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
9380 intel_ring_emit(ring
, pf
| pipesrc
);
9382 intel_mark_page_flip_active(intel_crtc
);
9383 __intel_ring_advance(ring
);
9387 static int intel_gen6_queue_flip(struct drm_device
*dev
,
9388 struct drm_crtc
*crtc
,
9389 struct drm_framebuffer
*fb
,
9390 struct drm_i915_gem_object
*obj
,
9391 struct intel_engine_cs
*ring
,
9394 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9395 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9396 uint32_t pf
, pipesrc
;
9399 ret
= intel_ring_begin(ring
, 4);
9403 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
9404 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
9405 intel_ring_emit(ring
, fb
->pitches
[0] | obj
->tiling_mode
);
9406 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9408 /* Contrary to the suggestions in the documentation,
9409 * "Enable Panel Fitter" does not seem to be required when page
9410 * flipping with a non-native mode, and worse causes a normal
9412 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
9415 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
9416 intel_ring_emit(ring
, pf
| pipesrc
);
9418 intel_mark_page_flip_active(intel_crtc
);
9419 __intel_ring_advance(ring
);
9423 static int intel_gen7_queue_flip(struct drm_device
*dev
,
9424 struct drm_crtc
*crtc
,
9425 struct drm_framebuffer
*fb
,
9426 struct drm_i915_gem_object
*obj
,
9427 struct intel_engine_cs
*ring
,
9430 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9431 uint32_t plane_bit
= 0;
9434 switch (intel_crtc
->plane
) {
9436 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_A
;
9439 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_B
;
9442 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_C
;
9445 WARN_ONCE(1, "unknown plane in flip command\n");
9450 if (ring
->id
== RCS
) {
9453 * On Gen 8, SRM is now taking an extra dword to accommodate
9454 * 48bits addresses, and we need a NOOP for the batch size to
9462 * BSpec MI_DISPLAY_FLIP for IVB:
9463 * "The full packet must be contained within the same cache line."
9465 * Currently the LRI+SRM+MI_DISPLAY_FLIP all fit within the same
9466 * cacheline, if we ever start emitting more commands before
9467 * the MI_DISPLAY_FLIP we may need to first emit everything else,
9468 * then do the cacheline alignment, and finally emit the
9471 ret
= intel_ring_cacheline_align(ring
);
9475 ret
= intel_ring_begin(ring
, len
);
9479 /* Unmask the flip-done completion message. Note that the bspec says that
9480 * we should do this for both the BCS and RCS, and that we must not unmask
9481 * more than one flip event at any time (or ensure that one flip message
9482 * can be sent by waiting for flip-done prior to queueing new flips).
9483 * Experimentation says that BCS works despite DERRMR masking all
9484 * flip-done completion events and that unmasking all planes at once
9485 * for the RCS also doesn't appear to drop events. Setting the DERRMR
9486 * to zero does lead to lockups within MI_DISPLAY_FLIP.
9488 if (ring
->id
== RCS
) {
9489 intel_ring_emit(ring
, MI_LOAD_REGISTER_IMM(1));
9490 intel_ring_emit(ring
, DERRMR
);
9491 intel_ring_emit(ring
, ~(DERRMR_PIPEA_PRI_FLIP_DONE
|
9492 DERRMR_PIPEB_PRI_FLIP_DONE
|
9493 DERRMR_PIPEC_PRI_FLIP_DONE
));
9495 intel_ring_emit(ring
, MI_STORE_REGISTER_MEM_GEN8(1) |
9496 MI_SRM_LRM_GLOBAL_GTT
);
9498 intel_ring_emit(ring
, MI_STORE_REGISTER_MEM(1) |
9499 MI_SRM_LRM_GLOBAL_GTT
);
9500 intel_ring_emit(ring
, DERRMR
);
9501 intel_ring_emit(ring
, ring
->scratch
.gtt_offset
+ 256);
9503 intel_ring_emit(ring
, 0);
9504 intel_ring_emit(ring
, MI_NOOP
);
9508 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
| plane_bit
);
9509 intel_ring_emit(ring
, (fb
->pitches
[0] | obj
->tiling_mode
));
9510 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9511 intel_ring_emit(ring
, (MI_NOOP
));
9513 intel_mark_page_flip_active(intel_crtc
);
9514 __intel_ring_advance(ring
);
9518 static bool use_mmio_flip(struct intel_engine_cs
*ring
,
9519 struct drm_i915_gem_object
*obj
)
9522 * This is not being used for older platforms, because
9523 * non-availability of flip done interrupt forces us to use
9524 * CS flips. Older platforms derive flip done using some clever
9525 * tricks involving the flip_pending status bits and vblank irqs.
9526 * So using MMIO flips there would disrupt this mechanism.
9532 if (INTEL_INFO(ring
->dev
)->gen
< 5)
9535 if (i915
.use_mmio_flip
< 0)
9537 else if (i915
.use_mmio_flip
> 0)
9540 return ring
!= obj
->ring
;
9543 static void intel_do_mmio_flip(struct intel_crtc
*intel_crtc
)
9545 struct drm_device
*dev
= intel_crtc
->base
.dev
;
9546 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9547 struct intel_framebuffer
*intel_fb
=
9548 to_intel_framebuffer(intel_crtc
->base
.primary
->fb
);
9549 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
9553 intel_mark_page_flip_active(intel_crtc
);
9555 reg
= DSPCNTR(intel_crtc
->plane
);
9556 dspcntr
= I915_READ(reg
);
9558 if (INTEL_INFO(dev
)->gen
>= 4) {
9559 if (obj
->tiling_mode
!= I915_TILING_NONE
)
9560 dspcntr
|= DISPPLANE_TILED
;
9562 dspcntr
&= ~DISPPLANE_TILED
;
9564 I915_WRITE(reg
, dspcntr
);
9566 I915_WRITE(DSPSURF(intel_crtc
->plane
),
9567 intel_crtc
->unpin_work
->gtt_offset
);
9568 POSTING_READ(DSPSURF(intel_crtc
->plane
));
9571 static int intel_postpone_flip(struct drm_i915_gem_object
*obj
)
9573 struct intel_engine_cs
*ring
;
9576 lockdep_assert_held(&obj
->base
.dev
->struct_mutex
);
9578 if (!obj
->last_write_seqno
)
9583 if (i915_seqno_passed(ring
->get_seqno(ring
, true),
9584 obj
->last_write_seqno
))
9587 ret
= i915_gem_check_olr(ring
, obj
->last_write_seqno
);
9591 if (WARN_ON(!ring
->irq_get(ring
)))
9597 void intel_notify_mmio_flip(struct intel_engine_cs
*ring
)
9599 struct drm_i915_private
*dev_priv
= to_i915(ring
->dev
);
9600 struct intel_crtc
*intel_crtc
;
9601 unsigned long irq_flags
;
9604 seqno
= ring
->get_seqno(ring
, false);
9606 spin_lock_irqsave(&dev_priv
->mmio_flip_lock
, irq_flags
);
9607 for_each_intel_crtc(ring
->dev
, intel_crtc
) {
9608 struct intel_mmio_flip
*mmio_flip
;
9610 mmio_flip
= &intel_crtc
->mmio_flip
;
9611 if (mmio_flip
->seqno
== 0)
9614 if (ring
->id
!= mmio_flip
->ring_id
)
9617 if (i915_seqno_passed(seqno
, mmio_flip
->seqno
)) {
9618 intel_do_mmio_flip(intel_crtc
);
9619 mmio_flip
->seqno
= 0;
9620 ring
->irq_put(ring
);
9623 spin_unlock_irqrestore(&dev_priv
->mmio_flip_lock
, irq_flags
);
9626 static int intel_queue_mmio_flip(struct drm_device
*dev
,
9627 struct drm_crtc
*crtc
,
9628 struct drm_framebuffer
*fb
,
9629 struct drm_i915_gem_object
*obj
,
9630 struct intel_engine_cs
*ring
,
9633 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9634 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9635 unsigned long irq_flags
;
9638 if (WARN_ON(intel_crtc
->mmio_flip
.seqno
))
9641 ret
= intel_postpone_flip(obj
);
9645 intel_do_mmio_flip(intel_crtc
);
9649 spin_lock_irqsave(&dev_priv
->mmio_flip_lock
, irq_flags
);
9650 intel_crtc
->mmio_flip
.seqno
= obj
->last_write_seqno
;
9651 intel_crtc
->mmio_flip
.ring_id
= obj
->ring
->id
;
9652 spin_unlock_irqrestore(&dev_priv
->mmio_flip_lock
, irq_flags
);
9655 * Double check to catch cases where irq fired before
9656 * mmio flip data was ready
9658 intel_notify_mmio_flip(obj
->ring
);
9662 static int intel_default_queue_flip(struct drm_device
*dev
,
9663 struct drm_crtc
*crtc
,
9664 struct drm_framebuffer
*fb
,
9665 struct drm_i915_gem_object
*obj
,
9666 struct intel_engine_cs
*ring
,
9672 static int intel_crtc_page_flip(struct drm_crtc
*crtc
,
9673 struct drm_framebuffer
*fb
,
9674 struct drm_pending_vblank_event
*event
,
9675 uint32_t page_flip_flags
)
9677 struct drm_device
*dev
= crtc
->dev
;
9678 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9679 struct drm_framebuffer
*old_fb
= crtc
->primary
->fb
;
9680 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
9681 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9682 enum pipe pipe
= intel_crtc
->pipe
;
9683 struct intel_unpin_work
*work
;
9684 struct intel_engine_cs
*ring
;
9685 unsigned long flags
;
9689 * drm_mode_page_flip_ioctl() should already catch this, but double
9690 * check to be safe. In the future we may enable pageflipping from
9691 * a disabled primary plane.
9693 if (WARN_ON(intel_fb_obj(old_fb
) == NULL
))
9696 /* Can't change pixel format via MI display flips. */
9697 if (fb
->pixel_format
!= crtc
->primary
->fb
->pixel_format
)
9701 * TILEOFF/LINOFF registers can't be changed via MI display flips.
9702 * Note that pitch changes could also affect these register.
9704 if (INTEL_INFO(dev
)->gen
> 3 &&
9705 (fb
->offsets
[0] != crtc
->primary
->fb
->offsets
[0] ||
9706 fb
->pitches
[0] != crtc
->primary
->fb
->pitches
[0]))
9709 if (i915_terminally_wedged(&dev_priv
->gpu_error
))
9712 work
= kzalloc(sizeof(*work
), GFP_KERNEL
);
9716 work
->event
= event
;
9718 work
->old_fb_obj
= intel_fb_obj(old_fb
);
9719 INIT_WORK(&work
->work
, intel_unpin_work_fn
);
9721 ret
= drm_crtc_vblank_get(crtc
);
9725 /* We borrow the event spin lock for protecting unpin_work */
9726 spin_lock_irqsave(&dev
->event_lock
, flags
);
9727 if (intel_crtc
->unpin_work
) {
9728 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9730 drm_crtc_vblank_put(crtc
);
9732 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
9735 intel_crtc
->unpin_work
= work
;
9736 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9738 if (atomic_read(&intel_crtc
->unpin_work_count
) >= 2)
9739 flush_workqueue(dev_priv
->wq
);
9741 ret
= i915_mutex_lock_interruptible(dev
);
9745 /* Reference the objects for the scheduled work. */
9746 drm_gem_object_reference(&work
->old_fb_obj
->base
);
9747 drm_gem_object_reference(&obj
->base
);
9749 crtc
->primary
->fb
= fb
;
9751 work
->pending_flip_obj
= obj
;
9753 work
->enable_stall_check
= true;
9755 atomic_inc(&intel_crtc
->unpin_work_count
);
9756 intel_crtc
->reset_counter
= atomic_read(&dev_priv
->gpu_error
.reset_counter
);
9758 if (INTEL_INFO(dev
)->gen
>= 5 || IS_G4X(dev
))
9759 work
->flip_count
= I915_READ(PIPE_FLIPCOUNT_GM45(pipe
)) + 1;
9761 if (IS_VALLEYVIEW(dev
)) {
9762 ring
= &dev_priv
->ring
[BCS
];
9763 if (obj
->tiling_mode
!= work
->old_fb_obj
->tiling_mode
)
9764 /* vlv: DISPLAY_FLIP fails to change tiling */
9766 } else if (IS_IVYBRIDGE(dev
)) {
9767 ring
= &dev_priv
->ring
[BCS
];
9768 } else if (INTEL_INFO(dev
)->gen
>= 7) {
9770 if (ring
== NULL
|| ring
->id
!= RCS
)
9771 ring
= &dev_priv
->ring
[BCS
];
9773 ring
= &dev_priv
->ring
[RCS
];
9776 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
9778 goto cleanup_pending
;
9781 i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
;
9783 if (use_mmio_flip(ring
, obj
))
9784 ret
= intel_queue_mmio_flip(dev
, crtc
, fb
, obj
, ring
,
9787 ret
= dev_priv
->display
.queue_flip(dev
, crtc
, fb
, obj
, ring
,
9792 i915_gem_track_fb(work
->old_fb_obj
, obj
,
9793 INTEL_FRONTBUFFER_PRIMARY(pipe
));
9795 intel_disable_fbc(dev
);
9796 intel_frontbuffer_flip_prepare(dev
, INTEL_FRONTBUFFER_PRIMARY(pipe
));
9797 mutex_unlock(&dev
->struct_mutex
);
9799 trace_i915_flip_request(intel_crtc
->plane
, obj
);
9804 intel_unpin_fb_obj(obj
);
9806 atomic_dec(&intel_crtc
->unpin_work_count
);
9807 crtc
->primary
->fb
= old_fb
;
9808 drm_gem_object_unreference(&work
->old_fb_obj
->base
);
9809 drm_gem_object_unreference(&obj
->base
);
9810 mutex_unlock(&dev
->struct_mutex
);
9813 spin_lock_irqsave(&dev
->event_lock
, flags
);
9814 intel_crtc
->unpin_work
= NULL
;
9815 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9817 drm_crtc_vblank_put(crtc
);
9823 intel_crtc_wait_for_pending_flips(crtc
);
9824 ret
= intel_pipe_set_base(crtc
, crtc
->x
, crtc
->y
, fb
);
9825 if (ret
== 0 && event
)
9826 drm_send_vblank_event(dev
, pipe
, event
);
9831 static struct drm_crtc_helper_funcs intel_helper_funcs
= {
9832 .mode_set_base_atomic
= intel_pipe_set_base_atomic
,
9833 .load_lut
= intel_crtc_load_lut
,
9837 * intel_modeset_update_staged_output_state
9839 * Updates the staged output configuration state, e.g. after we've read out the
9842 static void intel_modeset_update_staged_output_state(struct drm_device
*dev
)
9844 struct intel_crtc
*crtc
;
9845 struct intel_encoder
*encoder
;
9846 struct intel_connector
*connector
;
9848 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
9850 connector
->new_encoder
=
9851 to_intel_encoder(connector
->base
.encoder
);
9854 for_each_intel_encoder(dev
, encoder
) {
9856 to_intel_crtc(encoder
->base
.crtc
);
9859 for_each_intel_crtc(dev
, crtc
) {
9860 crtc
->new_enabled
= crtc
->base
.enabled
;
9862 if (crtc
->new_enabled
)
9863 crtc
->new_config
= &crtc
->config
;
9865 crtc
->new_config
= NULL
;
9870 * intel_modeset_commit_output_state
9872 * This function copies the stage display pipe configuration to the real one.
9874 static void intel_modeset_commit_output_state(struct drm_device
*dev
)
9876 struct intel_crtc
*crtc
;
9877 struct intel_encoder
*encoder
;
9878 struct intel_connector
*connector
;
9880 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
9882 connector
->base
.encoder
= &connector
->new_encoder
->base
;
9885 for_each_intel_encoder(dev
, encoder
) {
9886 encoder
->base
.crtc
= &encoder
->new_crtc
->base
;
9889 for_each_intel_crtc(dev
, crtc
) {
9890 crtc
->base
.enabled
= crtc
->new_enabled
;
9895 connected_sink_compute_bpp(struct intel_connector
*connector
,
9896 struct intel_crtc_config
*pipe_config
)
9898 int bpp
= pipe_config
->pipe_bpp
;
9900 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n",
9901 connector
->base
.base
.id
,
9902 connector
->base
.name
);
9904 /* Don't use an invalid EDID bpc value */
9905 if (connector
->base
.display_info
.bpc
&&
9906 connector
->base
.display_info
.bpc
* 3 < bpp
) {
9907 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
9908 bpp
, connector
->base
.display_info
.bpc
*3);
9909 pipe_config
->pipe_bpp
= connector
->base
.display_info
.bpc
*3;
9912 /* Clamp bpp to 8 on screens without EDID 1.4 */
9913 if (connector
->base
.display_info
.bpc
== 0 && bpp
> 24) {
9914 DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
9916 pipe_config
->pipe_bpp
= 24;
9921 compute_baseline_pipe_bpp(struct intel_crtc
*crtc
,
9922 struct drm_framebuffer
*fb
,
9923 struct intel_crtc_config
*pipe_config
)
9925 struct drm_device
*dev
= crtc
->base
.dev
;
9926 struct intel_connector
*connector
;
9929 switch (fb
->pixel_format
) {
9931 bpp
= 8*3; /* since we go through a colormap */
9933 case DRM_FORMAT_XRGB1555
:
9934 case DRM_FORMAT_ARGB1555
:
9935 /* checked in intel_framebuffer_init already */
9936 if (WARN_ON(INTEL_INFO(dev
)->gen
> 3))
9938 case DRM_FORMAT_RGB565
:
9939 bpp
= 6*3; /* min is 18bpp */
9941 case DRM_FORMAT_XBGR8888
:
9942 case DRM_FORMAT_ABGR8888
:
9943 /* checked in intel_framebuffer_init already */
9944 if (WARN_ON(INTEL_INFO(dev
)->gen
< 4))
9946 case DRM_FORMAT_XRGB8888
:
9947 case DRM_FORMAT_ARGB8888
:
9950 case DRM_FORMAT_XRGB2101010
:
9951 case DRM_FORMAT_ARGB2101010
:
9952 case DRM_FORMAT_XBGR2101010
:
9953 case DRM_FORMAT_ABGR2101010
:
9954 /* checked in intel_framebuffer_init already */
9955 if (WARN_ON(INTEL_INFO(dev
)->gen
< 4))
9959 /* TODO: gen4+ supports 16 bpc floating point, too. */
9961 DRM_DEBUG_KMS("unsupported depth\n");
9965 pipe_config
->pipe_bpp
= bpp
;
9967 /* Clamp display bpp to EDID value */
9968 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
9970 if (!connector
->new_encoder
||
9971 connector
->new_encoder
->new_crtc
!= crtc
)
9974 connected_sink_compute_bpp(connector
, pipe_config
);
9980 static void intel_dump_crtc_timings(const struct drm_display_mode
*mode
)
9982 DRM_DEBUG_KMS("crtc timings: %d %d %d %d %d %d %d %d %d, "
9983 "type: 0x%x flags: 0x%x\n",
9985 mode
->crtc_hdisplay
, mode
->crtc_hsync_start
,
9986 mode
->crtc_hsync_end
, mode
->crtc_htotal
,
9987 mode
->crtc_vdisplay
, mode
->crtc_vsync_start
,
9988 mode
->crtc_vsync_end
, mode
->crtc_vtotal
, mode
->type
, mode
->flags
);
9991 static void intel_dump_pipe_config(struct intel_crtc
*crtc
,
9992 struct intel_crtc_config
*pipe_config
,
9993 const char *context
)
9995 DRM_DEBUG_KMS("[CRTC:%d]%s config for pipe %c\n", crtc
->base
.base
.id
,
9996 context
, pipe_name(crtc
->pipe
));
9998 DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config
->cpu_transcoder
));
9999 DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n",
10000 pipe_config
->pipe_bpp
, pipe_config
->dither
);
10001 DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
10002 pipe_config
->has_pch_encoder
,
10003 pipe_config
->fdi_lanes
,
10004 pipe_config
->fdi_m_n
.gmch_m
, pipe_config
->fdi_m_n
.gmch_n
,
10005 pipe_config
->fdi_m_n
.link_m
, pipe_config
->fdi_m_n
.link_n
,
10006 pipe_config
->fdi_m_n
.tu
);
10007 DRM_DEBUG_KMS("dp: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
10008 pipe_config
->has_dp_encoder
,
10009 pipe_config
->dp_m_n
.gmch_m
, pipe_config
->dp_m_n
.gmch_n
,
10010 pipe_config
->dp_m_n
.link_m
, pipe_config
->dp_m_n
.link_n
,
10011 pipe_config
->dp_m_n
.tu
);
10013 DRM_DEBUG_KMS("dp: %i, gmch_m2: %u, gmch_n2: %u, link_m2: %u, link_n2: %u, tu2: %u\n",
10014 pipe_config
->has_dp_encoder
,
10015 pipe_config
->dp_m2_n2
.gmch_m
,
10016 pipe_config
->dp_m2_n2
.gmch_n
,
10017 pipe_config
->dp_m2_n2
.link_m
,
10018 pipe_config
->dp_m2_n2
.link_n
,
10019 pipe_config
->dp_m2_n2
.tu
);
10021 DRM_DEBUG_KMS("requested mode:\n");
10022 drm_mode_debug_printmodeline(&pipe_config
->requested_mode
);
10023 DRM_DEBUG_KMS("adjusted mode:\n");
10024 drm_mode_debug_printmodeline(&pipe_config
->adjusted_mode
);
10025 intel_dump_crtc_timings(&pipe_config
->adjusted_mode
);
10026 DRM_DEBUG_KMS("port clock: %d\n", pipe_config
->port_clock
);
10027 DRM_DEBUG_KMS("pipe src size: %dx%d\n",
10028 pipe_config
->pipe_src_w
, pipe_config
->pipe_src_h
);
10029 DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n",
10030 pipe_config
->gmch_pfit
.control
,
10031 pipe_config
->gmch_pfit
.pgm_ratios
,
10032 pipe_config
->gmch_pfit
.lvds_border_bits
);
10033 DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n",
10034 pipe_config
->pch_pfit
.pos
,
10035 pipe_config
->pch_pfit
.size
,
10036 pipe_config
->pch_pfit
.enabled
? "enabled" : "disabled");
10037 DRM_DEBUG_KMS("ips: %i\n", pipe_config
->ips_enabled
);
10038 DRM_DEBUG_KMS("double wide: %i\n", pipe_config
->double_wide
);
10041 static bool encoders_cloneable(const struct intel_encoder
*a
,
10042 const struct intel_encoder
*b
)
10044 /* masks could be asymmetric, so check both ways */
10045 return a
== b
|| (a
->cloneable
& (1 << b
->type
) &&
10046 b
->cloneable
& (1 << a
->type
));
10049 static bool check_single_encoder_cloning(struct intel_crtc
*crtc
,
10050 struct intel_encoder
*encoder
)
10052 struct drm_device
*dev
= crtc
->base
.dev
;
10053 struct intel_encoder
*source_encoder
;
10055 for_each_intel_encoder(dev
, source_encoder
) {
10056 if (source_encoder
->new_crtc
!= crtc
)
10059 if (!encoders_cloneable(encoder
, source_encoder
))
10066 static bool check_encoder_cloning(struct intel_crtc
*crtc
)
10068 struct drm_device
*dev
= crtc
->base
.dev
;
10069 struct intel_encoder
*encoder
;
10071 for_each_intel_encoder(dev
, encoder
) {
10072 if (encoder
->new_crtc
!= crtc
)
10075 if (!check_single_encoder_cloning(crtc
, encoder
))
10082 static struct intel_crtc_config
*
10083 intel_modeset_pipe_config(struct drm_crtc
*crtc
,
10084 struct drm_framebuffer
*fb
,
10085 struct drm_display_mode
*mode
)
10087 struct drm_device
*dev
= crtc
->dev
;
10088 struct intel_encoder
*encoder
;
10089 struct intel_crtc_config
*pipe_config
;
10090 int plane_bpp
, ret
= -EINVAL
;
10093 if (!check_encoder_cloning(to_intel_crtc(crtc
))) {
10094 DRM_DEBUG_KMS("rejecting invalid cloning configuration\n");
10095 return ERR_PTR(-EINVAL
);
10098 pipe_config
= kzalloc(sizeof(*pipe_config
), GFP_KERNEL
);
10100 return ERR_PTR(-ENOMEM
);
10102 drm_mode_copy(&pipe_config
->adjusted_mode
, mode
);
10103 drm_mode_copy(&pipe_config
->requested_mode
, mode
);
10105 pipe_config
->cpu_transcoder
=
10106 (enum transcoder
) to_intel_crtc(crtc
)->pipe
;
10107 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
10110 * Sanitize sync polarity flags based on requested ones. If neither
10111 * positive or negative polarity is requested, treat this as meaning
10112 * negative polarity.
10114 if (!(pipe_config
->adjusted_mode
.flags
&
10115 (DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NHSYNC
)))
10116 pipe_config
->adjusted_mode
.flags
|= DRM_MODE_FLAG_NHSYNC
;
10118 if (!(pipe_config
->adjusted_mode
.flags
&
10119 (DRM_MODE_FLAG_PVSYNC
| DRM_MODE_FLAG_NVSYNC
)))
10120 pipe_config
->adjusted_mode
.flags
|= DRM_MODE_FLAG_NVSYNC
;
10122 /* Compute a starting value for pipe_config->pipe_bpp taking the source
10123 * plane pixel format and any sink constraints into account. Returns the
10124 * source plane bpp so that dithering can be selected on mismatches
10125 * after encoders and crtc also have had their say. */
10126 plane_bpp
= compute_baseline_pipe_bpp(to_intel_crtc(crtc
),
10132 * Determine the real pipe dimensions. Note that stereo modes can
10133 * increase the actual pipe size due to the frame doubling and
10134 * insertion of additional space for blanks between the frame. This
10135 * is stored in the crtc timings. We use the requested mode to do this
10136 * computation to clearly distinguish it from the adjusted mode, which
10137 * can be changed by the connectors in the below retry loop.
10139 drm_mode_set_crtcinfo(&pipe_config
->requested_mode
, CRTC_STEREO_DOUBLE
);
10140 pipe_config
->pipe_src_w
= pipe_config
->requested_mode
.crtc_hdisplay
;
10141 pipe_config
->pipe_src_h
= pipe_config
->requested_mode
.crtc_vdisplay
;
10144 /* Ensure the port clock defaults are reset when retrying. */
10145 pipe_config
->port_clock
= 0;
10146 pipe_config
->pixel_multiplier
= 1;
10148 /* Fill in default crtc timings, allow encoders to overwrite them. */
10149 drm_mode_set_crtcinfo(&pipe_config
->adjusted_mode
, CRTC_STEREO_DOUBLE
);
10151 /* Pass our mode to the connectors and the CRTC to give them a chance to
10152 * adjust it according to limitations or connector properties, and also
10153 * a chance to reject the mode entirely.
10155 for_each_intel_encoder(dev
, encoder
) {
10157 if (&encoder
->new_crtc
->base
!= crtc
)
10160 if (!(encoder
->compute_config(encoder
, pipe_config
))) {
10161 DRM_DEBUG_KMS("Encoder config failure\n");
10166 /* Set default port clock if not overwritten by the encoder. Needs to be
10167 * done afterwards in case the encoder adjusts the mode. */
10168 if (!pipe_config
->port_clock
)
10169 pipe_config
->port_clock
= pipe_config
->adjusted_mode
.crtc_clock
10170 * pipe_config
->pixel_multiplier
;
10172 ret
= intel_crtc_compute_config(to_intel_crtc(crtc
), pipe_config
);
10174 DRM_DEBUG_KMS("CRTC fixup failed\n");
10178 if (ret
== RETRY
) {
10179 if (WARN(!retry
, "loop in pipe configuration computation\n")) {
10184 DRM_DEBUG_KMS("CRTC bw constrained, retrying\n");
10186 goto encoder_retry
;
10189 pipe_config
->dither
= pipe_config
->pipe_bpp
!= plane_bpp
;
10190 DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n",
10191 plane_bpp
, pipe_config
->pipe_bpp
, pipe_config
->dither
);
10193 return pipe_config
;
10195 kfree(pipe_config
);
10196 return ERR_PTR(ret
);
10199 /* Computes which crtcs are affected and sets the relevant bits in the mask. For
10200 * simplicity we use the crtc's pipe number (because it's easier to obtain). */
10202 intel_modeset_affected_pipes(struct drm_crtc
*crtc
, unsigned *modeset_pipes
,
10203 unsigned *prepare_pipes
, unsigned *disable_pipes
)
10205 struct intel_crtc
*intel_crtc
;
10206 struct drm_device
*dev
= crtc
->dev
;
10207 struct intel_encoder
*encoder
;
10208 struct intel_connector
*connector
;
10209 struct drm_crtc
*tmp_crtc
;
10211 *disable_pipes
= *modeset_pipes
= *prepare_pipes
= 0;
10213 /* Check which crtcs have changed outputs connected to them, these need
10214 * to be part of the prepare_pipes mask. We don't (yet) support global
10215 * modeset across multiple crtcs, so modeset_pipes will only have one
10216 * bit set at most. */
10217 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
10219 if (connector
->base
.encoder
== &connector
->new_encoder
->base
)
10222 if (connector
->base
.encoder
) {
10223 tmp_crtc
= connector
->base
.encoder
->crtc
;
10225 *prepare_pipes
|= 1 << to_intel_crtc(tmp_crtc
)->pipe
;
10228 if (connector
->new_encoder
)
10230 1 << connector
->new_encoder
->new_crtc
->pipe
;
10233 for_each_intel_encoder(dev
, encoder
) {
10234 if (encoder
->base
.crtc
== &encoder
->new_crtc
->base
)
10237 if (encoder
->base
.crtc
) {
10238 tmp_crtc
= encoder
->base
.crtc
;
10240 *prepare_pipes
|= 1 << to_intel_crtc(tmp_crtc
)->pipe
;
10243 if (encoder
->new_crtc
)
10244 *prepare_pipes
|= 1 << encoder
->new_crtc
->pipe
;
10247 /* Check for pipes that will be enabled/disabled ... */
10248 for_each_intel_crtc(dev
, intel_crtc
) {
10249 if (intel_crtc
->base
.enabled
== intel_crtc
->new_enabled
)
10252 if (!intel_crtc
->new_enabled
)
10253 *disable_pipes
|= 1 << intel_crtc
->pipe
;
10255 *prepare_pipes
|= 1 << intel_crtc
->pipe
;
10259 /* set_mode is also used to update properties on life display pipes. */
10260 intel_crtc
= to_intel_crtc(crtc
);
10261 if (intel_crtc
->new_enabled
)
10262 *prepare_pipes
|= 1 << intel_crtc
->pipe
;
10265 * For simplicity do a full modeset on any pipe where the output routing
10266 * changed. We could be more clever, but that would require us to be
10267 * more careful with calling the relevant encoder->mode_set functions.
10269 if (*prepare_pipes
)
10270 *modeset_pipes
= *prepare_pipes
;
10272 /* ... and mask these out. */
10273 *modeset_pipes
&= ~(*disable_pipes
);
10274 *prepare_pipes
&= ~(*disable_pipes
);
10277 * HACK: We don't (yet) fully support global modesets. intel_set_config
10278 * obies this rule, but the modeset restore mode of
10279 * intel_modeset_setup_hw_state does not.
10281 *modeset_pipes
&= 1 << intel_crtc
->pipe
;
10282 *prepare_pipes
&= 1 << intel_crtc
->pipe
;
10284 DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
10285 *modeset_pipes
, *prepare_pipes
, *disable_pipes
);
10288 static bool intel_crtc_in_use(struct drm_crtc
*crtc
)
10290 struct drm_encoder
*encoder
;
10291 struct drm_device
*dev
= crtc
->dev
;
10293 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
)
10294 if (encoder
->crtc
== crtc
)
10301 intel_modeset_update_state(struct drm_device
*dev
, unsigned prepare_pipes
)
10303 struct intel_encoder
*intel_encoder
;
10304 struct intel_crtc
*intel_crtc
;
10305 struct drm_connector
*connector
;
10307 for_each_intel_encoder(dev
, intel_encoder
) {
10308 if (!intel_encoder
->base
.crtc
)
10311 intel_crtc
= to_intel_crtc(intel_encoder
->base
.crtc
);
10313 if (prepare_pipes
& (1 << intel_crtc
->pipe
))
10314 intel_encoder
->connectors_active
= false;
10317 intel_modeset_commit_output_state(dev
);
10319 /* Double check state. */
10320 for_each_intel_crtc(dev
, intel_crtc
) {
10321 WARN_ON(intel_crtc
->base
.enabled
!= intel_crtc_in_use(&intel_crtc
->base
));
10322 WARN_ON(intel_crtc
->new_config
&&
10323 intel_crtc
->new_config
!= &intel_crtc
->config
);
10324 WARN_ON(intel_crtc
->base
.enabled
!= !!intel_crtc
->new_config
);
10327 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
10328 if (!connector
->encoder
|| !connector
->encoder
->crtc
)
10331 intel_crtc
= to_intel_crtc(connector
->encoder
->crtc
);
10333 if (prepare_pipes
& (1 << intel_crtc
->pipe
)) {
10334 struct drm_property
*dpms_property
=
10335 dev
->mode_config
.dpms_property
;
10337 connector
->dpms
= DRM_MODE_DPMS_ON
;
10338 drm_object_property_set_value(&connector
->base
,
10342 intel_encoder
= to_intel_encoder(connector
->encoder
);
10343 intel_encoder
->connectors_active
= true;
10349 static bool intel_fuzzy_clock_check(int clock1
, int clock2
)
10353 if (clock1
== clock2
)
10356 if (!clock1
|| !clock2
)
10359 diff
= abs(clock1
- clock2
);
10361 if (((((diff
+ clock1
+ clock2
) * 100)) / (clock1
+ clock2
)) < 105)
10367 #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
10368 list_for_each_entry((intel_crtc), \
10369 &(dev)->mode_config.crtc_list, \
10371 if (mask & (1 <<(intel_crtc)->pipe))
10374 intel_pipe_config_compare(struct drm_device
*dev
,
10375 struct intel_crtc_config
*current_config
,
10376 struct intel_crtc_config
*pipe_config
)
10378 #define PIPE_CONF_CHECK_X(name) \
10379 if (current_config->name != pipe_config->name) { \
10380 DRM_ERROR("mismatch in " #name " " \
10381 "(expected 0x%08x, found 0x%08x)\n", \
10382 current_config->name, \
10383 pipe_config->name); \
10387 #define PIPE_CONF_CHECK_I(name) \
10388 if (current_config->name != pipe_config->name) { \
10389 DRM_ERROR("mismatch in " #name " " \
10390 "(expected %i, found %i)\n", \
10391 current_config->name, \
10392 pipe_config->name); \
10396 /* This is required for BDW+ where there is only one set of registers for
10397 * switching between high and low RR.
10398 * This macro can be used whenever a comparison has to be made between one
10399 * hw state and multiple sw state variables.
10401 #define PIPE_CONF_CHECK_I_ALT(name, alt_name) \
10402 if ((current_config->name != pipe_config->name) && \
10403 (current_config->alt_name != pipe_config->name)) { \
10404 DRM_ERROR("mismatch in " #name " " \
10405 "(expected %i or %i, found %i)\n", \
10406 current_config->name, \
10407 current_config->alt_name, \
10408 pipe_config->name); \
10412 #define PIPE_CONF_CHECK_FLAGS(name, mask) \
10413 if ((current_config->name ^ pipe_config->name) & (mask)) { \
10414 DRM_ERROR("mismatch in " #name "(" #mask ") " \
10415 "(expected %i, found %i)\n", \
10416 current_config->name & (mask), \
10417 pipe_config->name & (mask)); \
10421 #define PIPE_CONF_CHECK_CLOCK_FUZZY(name) \
10422 if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \
10423 DRM_ERROR("mismatch in " #name " " \
10424 "(expected %i, found %i)\n", \
10425 current_config->name, \
10426 pipe_config->name); \
10430 #define PIPE_CONF_QUIRK(quirk) \
10431 ((current_config->quirks | pipe_config->quirks) & (quirk))
10433 PIPE_CONF_CHECK_I(cpu_transcoder
);
10435 PIPE_CONF_CHECK_I(has_pch_encoder
);
10436 PIPE_CONF_CHECK_I(fdi_lanes
);
10437 PIPE_CONF_CHECK_I(fdi_m_n
.gmch_m
);
10438 PIPE_CONF_CHECK_I(fdi_m_n
.gmch_n
);
10439 PIPE_CONF_CHECK_I(fdi_m_n
.link_m
);
10440 PIPE_CONF_CHECK_I(fdi_m_n
.link_n
);
10441 PIPE_CONF_CHECK_I(fdi_m_n
.tu
);
10443 PIPE_CONF_CHECK_I(has_dp_encoder
);
10445 if (INTEL_INFO(dev
)->gen
< 8) {
10446 PIPE_CONF_CHECK_I(dp_m_n
.gmch_m
);
10447 PIPE_CONF_CHECK_I(dp_m_n
.gmch_n
);
10448 PIPE_CONF_CHECK_I(dp_m_n
.link_m
);
10449 PIPE_CONF_CHECK_I(dp_m_n
.link_n
);
10450 PIPE_CONF_CHECK_I(dp_m_n
.tu
);
10452 if (current_config
->has_drrs
) {
10453 PIPE_CONF_CHECK_I(dp_m2_n2
.gmch_m
);
10454 PIPE_CONF_CHECK_I(dp_m2_n2
.gmch_n
);
10455 PIPE_CONF_CHECK_I(dp_m2_n2
.link_m
);
10456 PIPE_CONF_CHECK_I(dp_m2_n2
.link_n
);
10457 PIPE_CONF_CHECK_I(dp_m2_n2
.tu
);
10460 PIPE_CONF_CHECK_I_ALT(dp_m_n
.gmch_m
, dp_m2_n2
.gmch_m
);
10461 PIPE_CONF_CHECK_I_ALT(dp_m_n
.gmch_n
, dp_m2_n2
.gmch_n
);
10462 PIPE_CONF_CHECK_I_ALT(dp_m_n
.link_m
, dp_m2_n2
.link_m
);
10463 PIPE_CONF_CHECK_I_ALT(dp_m_n
.link_n
, dp_m2_n2
.link_n
);
10464 PIPE_CONF_CHECK_I_ALT(dp_m_n
.tu
, dp_m2_n2
.tu
);
10467 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_hdisplay
);
10468 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_htotal
);
10469 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_hblank_start
);
10470 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_hblank_end
);
10471 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_hsync_start
);
10472 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_hsync_end
);
10474 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vdisplay
);
10475 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vtotal
);
10476 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vblank_start
);
10477 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vblank_end
);
10478 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vsync_start
);
10479 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vsync_end
);
10481 PIPE_CONF_CHECK_I(pixel_multiplier
);
10482 PIPE_CONF_CHECK_I(has_hdmi_sink
);
10483 if ((INTEL_INFO(dev
)->gen
< 8 && !IS_HASWELL(dev
)) ||
10484 IS_VALLEYVIEW(dev
))
10485 PIPE_CONF_CHECK_I(limited_color_range
);
10487 PIPE_CONF_CHECK_I(has_audio
);
10489 PIPE_CONF_CHECK_FLAGS(adjusted_mode
.flags
,
10490 DRM_MODE_FLAG_INTERLACE
);
10492 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS
)) {
10493 PIPE_CONF_CHECK_FLAGS(adjusted_mode
.flags
,
10494 DRM_MODE_FLAG_PHSYNC
);
10495 PIPE_CONF_CHECK_FLAGS(adjusted_mode
.flags
,
10496 DRM_MODE_FLAG_NHSYNC
);
10497 PIPE_CONF_CHECK_FLAGS(adjusted_mode
.flags
,
10498 DRM_MODE_FLAG_PVSYNC
);
10499 PIPE_CONF_CHECK_FLAGS(adjusted_mode
.flags
,
10500 DRM_MODE_FLAG_NVSYNC
);
10503 PIPE_CONF_CHECK_I(pipe_src_w
);
10504 PIPE_CONF_CHECK_I(pipe_src_h
);
10507 * FIXME: BIOS likes to set up a cloned config with lvds+external
10508 * screen. Since we don't yet re-compute the pipe config when moving
10509 * just the lvds port away to another pipe the sw tracking won't match.
10511 * Proper atomic modesets with recomputed global state will fix this.
10512 * Until then just don't check gmch state for inherited modes.
10514 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_INHERITED_MODE
)) {
10515 PIPE_CONF_CHECK_I(gmch_pfit
.control
);
10516 /* pfit ratios are autocomputed by the hw on gen4+ */
10517 if (INTEL_INFO(dev
)->gen
< 4)
10518 PIPE_CONF_CHECK_I(gmch_pfit
.pgm_ratios
);
10519 PIPE_CONF_CHECK_I(gmch_pfit
.lvds_border_bits
);
10522 PIPE_CONF_CHECK_I(pch_pfit
.enabled
);
10523 if (current_config
->pch_pfit
.enabled
) {
10524 PIPE_CONF_CHECK_I(pch_pfit
.pos
);
10525 PIPE_CONF_CHECK_I(pch_pfit
.size
);
10528 /* BDW+ don't expose a synchronous way to read the state */
10529 if (IS_HASWELL(dev
))
10530 PIPE_CONF_CHECK_I(ips_enabled
);
10532 PIPE_CONF_CHECK_I(double_wide
);
10534 PIPE_CONF_CHECK_X(ddi_pll_sel
);
10536 PIPE_CONF_CHECK_I(shared_dpll
);
10537 PIPE_CONF_CHECK_X(dpll_hw_state
.dpll
);
10538 PIPE_CONF_CHECK_X(dpll_hw_state
.dpll_md
);
10539 PIPE_CONF_CHECK_X(dpll_hw_state
.fp0
);
10540 PIPE_CONF_CHECK_X(dpll_hw_state
.fp1
);
10541 PIPE_CONF_CHECK_X(dpll_hw_state
.wrpll
);
10543 if (IS_G4X(dev
) || INTEL_INFO(dev
)->gen
>= 5)
10544 PIPE_CONF_CHECK_I(pipe_bpp
);
10546 PIPE_CONF_CHECK_CLOCK_FUZZY(adjusted_mode
.crtc_clock
);
10547 PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock
);
10549 #undef PIPE_CONF_CHECK_X
10550 #undef PIPE_CONF_CHECK_I
10551 #undef PIPE_CONF_CHECK_I_ALT
10552 #undef PIPE_CONF_CHECK_FLAGS
10553 #undef PIPE_CONF_CHECK_CLOCK_FUZZY
10554 #undef PIPE_CONF_QUIRK
10560 check_connector_state(struct drm_device
*dev
)
10562 struct intel_connector
*connector
;
10564 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
10566 /* This also checks the encoder/connector hw state with the
10567 * ->get_hw_state callbacks. */
10568 intel_connector_check_state(connector
);
10570 WARN(&connector
->new_encoder
->base
!= connector
->base
.encoder
,
10571 "connector's staged encoder doesn't match current encoder\n");
10576 check_encoder_state(struct drm_device
*dev
)
10578 struct intel_encoder
*encoder
;
10579 struct intel_connector
*connector
;
10581 for_each_intel_encoder(dev
, encoder
) {
10582 bool enabled
= false;
10583 bool active
= false;
10584 enum pipe pipe
, tracked_pipe
;
10586 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
10587 encoder
->base
.base
.id
,
10588 encoder
->base
.name
);
10590 WARN(&encoder
->new_crtc
->base
!= encoder
->base
.crtc
,
10591 "encoder's stage crtc doesn't match current crtc\n");
10592 WARN(encoder
->connectors_active
&& !encoder
->base
.crtc
,
10593 "encoder's active_connectors set, but no crtc\n");
10595 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
10597 if (connector
->base
.encoder
!= &encoder
->base
)
10600 if (connector
->base
.dpms
!= DRM_MODE_DPMS_OFF
)
10604 * for MST connectors if we unplug the connector is gone
10605 * away but the encoder is still connected to a crtc
10606 * until a modeset happens in response to the hotplug.
10608 if (!enabled
&& encoder
->base
.encoder_type
== DRM_MODE_ENCODER_DPMST
)
10611 WARN(!!encoder
->base
.crtc
!= enabled
,
10612 "encoder's enabled state mismatch "
10613 "(expected %i, found %i)\n",
10614 !!encoder
->base
.crtc
, enabled
);
10615 WARN(active
&& !encoder
->base
.crtc
,
10616 "active encoder with no crtc\n");
10618 WARN(encoder
->connectors_active
!= active
,
10619 "encoder's computed active state doesn't match tracked active state "
10620 "(expected %i, found %i)\n", active
, encoder
->connectors_active
);
10622 active
= encoder
->get_hw_state(encoder
, &pipe
);
10623 WARN(active
!= encoder
->connectors_active
,
10624 "encoder's hw state doesn't match sw tracking "
10625 "(expected %i, found %i)\n",
10626 encoder
->connectors_active
, active
);
10628 if (!encoder
->base
.crtc
)
10631 tracked_pipe
= to_intel_crtc(encoder
->base
.crtc
)->pipe
;
10632 WARN(active
&& pipe
!= tracked_pipe
,
10633 "active encoder's pipe doesn't match"
10634 "(expected %i, found %i)\n",
10635 tracked_pipe
, pipe
);
10641 check_crtc_state(struct drm_device
*dev
)
10643 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10644 struct intel_crtc
*crtc
;
10645 struct intel_encoder
*encoder
;
10646 struct intel_crtc_config pipe_config
;
10648 for_each_intel_crtc(dev
, crtc
) {
10649 bool enabled
= false;
10650 bool active
= false;
10652 memset(&pipe_config
, 0, sizeof(pipe_config
));
10654 DRM_DEBUG_KMS("[CRTC:%d]\n",
10655 crtc
->base
.base
.id
);
10657 WARN(crtc
->active
&& !crtc
->base
.enabled
,
10658 "active crtc, but not enabled in sw tracking\n");
10660 for_each_intel_encoder(dev
, encoder
) {
10661 if (encoder
->base
.crtc
!= &crtc
->base
)
10664 if (encoder
->connectors_active
)
10668 WARN(active
!= crtc
->active
,
10669 "crtc's computed active state doesn't match tracked active state "
10670 "(expected %i, found %i)\n", active
, crtc
->active
);
10671 WARN(enabled
!= crtc
->base
.enabled
,
10672 "crtc's computed enabled state doesn't match tracked enabled state "
10673 "(expected %i, found %i)\n", enabled
, crtc
->base
.enabled
);
10675 active
= dev_priv
->display
.get_pipe_config(crtc
,
10678 /* hw state is inconsistent with the pipe A quirk */
10679 if (crtc
->pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
)
10680 active
= crtc
->active
;
10682 for_each_intel_encoder(dev
, encoder
) {
10684 if (encoder
->base
.crtc
!= &crtc
->base
)
10686 if (encoder
->get_hw_state(encoder
, &pipe
))
10687 encoder
->get_config(encoder
, &pipe_config
);
10690 WARN(crtc
->active
!= active
,
10691 "crtc active state doesn't match with hw state "
10692 "(expected %i, found %i)\n", crtc
->active
, active
);
10695 !intel_pipe_config_compare(dev
, &crtc
->config
, &pipe_config
)) {
10696 WARN(1, "pipe state doesn't match!\n");
10697 intel_dump_pipe_config(crtc
, &pipe_config
,
10699 intel_dump_pipe_config(crtc
, &crtc
->config
,
10706 check_shared_dpll_state(struct drm_device
*dev
)
10708 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10709 struct intel_crtc
*crtc
;
10710 struct intel_dpll_hw_state dpll_hw_state
;
10713 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
10714 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
10715 int enabled_crtcs
= 0, active_crtcs
= 0;
10718 memset(&dpll_hw_state
, 0, sizeof(dpll_hw_state
));
10720 DRM_DEBUG_KMS("%s\n", pll
->name
);
10722 active
= pll
->get_hw_state(dev_priv
, pll
, &dpll_hw_state
);
10724 WARN(pll
->active
> pll
->refcount
,
10725 "more active pll users than references: %i vs %i\n",
10726 pll
->active
, pll
->refcount
);
10727 WARN(pll
->active
&& !pll
->on
,
10728 "pll in active use but not on in sw tracking\n");
10729 WARN(pll
->on
&& !pll
->active
,
10730 "pll in on but not on in use in sw tracking\n");
10731 WARN(pll
->on
!= active
,
10732 "pll on state mismatch (expected %i, found %i)\n",
10735 for_each_intel_crtc(dev
, crtc
) {
10736 if (crtc
->base
.enabled
&& intel_crtc_to_shared_dpll(crtc
) == pll
)
10738 if (crtc
->active
&& intel_crtc_to_shared_dpll(crtc
) == pll
)
10741 WARN(pll
->active
!= active_crtcs
,
10742 "pll active crtcs mismatch (expected %i, found %i)\n",
10743 pll
->active
, active_crtcs
);
10744 WARN(pll
->refcount
!= enabled_crtcs
,
10745 "pll enabled crtcs mismatch (expected %i, found %i)\n",
10746 pll
->refcount
, enabled_crtcs
);
10748 WARN(pll
->on
&& memcmp(&pll
->hw_state
, &dpll_hw_state
,
10749 sizeof(dpll_hw_state
)),
10750 "pll hw state mismatch\n");
10755 intel_modeset_check_state(struct drm_device
*dev
)
10757 check_connector_state(dev
);
10758 check_encoder_state(dev
);
10759 check_crtc_state(dev
);
10760 check_shared_dpll_state(dev
);
10763 void ironlake_check_encoder_dotclock(const struct intel_crtc_config
*pipe_config
,
10767 * FDI already provided one idea for the dotclock.
10768 * Yell if the encoder disagrees.
10770 WARN(!intel_fuzzy_clock_check(pipe_config
->adjusted_mode
.crtc_clock
, dotclock
),
10771 "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n",
10772 pipe_config
->adjusted_mode
.crtc_clock
, dotclock
);
10775 static void update_scanline_offset(struct intel_crtc
*crtc
)
10777 struct drm_device
*dev
= crtc
->base
.dev
;
10780 * The scanline counter increments at the leading edge of hsync.
10782 * On most platforms it starts counting from vtotal-1 on the
10783 * first active line. That means the scanline counter value is
10784 * always one less than what we would expect. Ie. just after
10785 * start of vblank, which also occurs at start of hsync (on the
10786 * last active line), the scanline counter will read vblank_start-1.
10788 * On gen2 the scanline counter starts counting from 1 instead
10789 * of vtotal-1, so we have to subtract one (or rather add vtotal-1
10790 * to keep the value positive), instead of adding one.
10792 * On HSW+ the behaviour of the scanline counter depends on the output
10793 * type. For DP ports it behaves like most other platforms, but on HDMI
10794 * there's an extra 1 line difference. So we need to add two instead of
10795 * one to the value.
10797 if (IS_GEN2(dev
)) {
10798 const struct drm_display_mode
*mode
= &crtc
->config
.adjusted_mode
;
10801 vtotal
= mode
->crtc_vtotal
;
10802 if (mode
->flags
& DRM_MODE_FLAG_INTERLACE
)
10805 crtc
->scanline_offset
= vtotal
- 1;
10806 } else if (HAS_DDI(dev
) &&
10807 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_HDMI
)) {
10808 crtc
->scanline_offset
= 2;
10810 crtc
->scanline_offset
= 1;
10813 static int __intel_set_mode(struct drm_crtc
*crtc
,
10814 struct drm_display_mode
*mode
,
10815 int x
, int y
, struct drm_framebuffer
*fb
)
10817 struct drm_device
*dev
= crtc
->dev
;
10818 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10819 struct drm_display_mode
*saved_mode
;
10820 struct intel_crtc_config
*pipe_config
= NULL
;
10821 struct intel_crtc
*intel_crtc
;
10822 unsigned disable_pipes
, prepare_pipes
, modeset_pipes
;
10825 saved_mode
= kmalloc(sizeof(*saved_mode
), GFP_KERNEL
);
10829 intel_modeset_affected_pipes(crtc
, &modeset_pipes
,
10830 &prepare_pipes
, &disable_pipes
);
10832 *saved_mode
= crtc
->mode
;
10834 /* Hack: Because we don't (yet) support global modeset on multiple
10835 * crtcs, we don't keep track of the new mode for more than one crtc.
10836 * Hence simply check whether any bit is set in modeset_pipes in all the
10837 * pieces of code that are not yet converted to deal with mutliple crtcs
10838 * changing their mode at the same time. */
10839 if (modeset_pipes
) {
10840 pipe_config
= intel_modeset_pipe_config(crtc
, fb
, mode
);
10841 if (IS_ERR(pipe_config
)) {
10842 ret
= PTR_ERR(pipe_config
);
10843 pipe_config
= NULL
;
10847 intel_dump_pipe_config(to_intel_crtc(crtc
), pipe_config
,
10849 to_intel_crtc(crtc
)->new_config
= pipe_config
;
10853 * See if the config requires any additional preparation, e.g.
10854 * to adjust global state with pipes off. We need to do this
10855 * here so we can get the modeset_pipe updated config for the new
10856 * mode set on this crtc. For other crtcs we need to use the
10857 * adjusted_mode bits in the crtc directly.
10859 if (IS_VALLEYVIEW(dev
)) {
10860 valleyview_modeset_global_pipes(dev
, &prepare_pipes
);
10862 /* may have added more to prepare_pipes than we should */
10863 prepare_pipes
&= ~disable_pipes
;
10866 for_each_intel_crtc_masked(dev
, disable_pipes
, intel_crtc
)
10867 intel_crtc_disable(&intel_crtc
->base
);
10869 for_each_intel_crtc_masked(dev
, prepare_pipes
, intel_crtc
) {
10870 if (intel_crtc
->base
.enabled
)
10871 dev_priv
->display
.crtc_disable(&intel_crtc
->base
);
10874 /* crtc->mode is already used by the ->mode_set callbacks, hence we need
10875 * to set it here already despite that we pass it down the callchain.
10877 if (modeset_pipes
) {
10878 crtc
->mode
= *mode
;
10879 /* mode_set/enable/disable functions rely on a correct pipe
10881 to_intel_crtc(crtc
)->config
= *pipe_config
;
10882 to_intel_crtc(crtc
)->new_config
= &to_intel_crtc(crtc
)->config
;
10885 * Calculate and store various constants which
10886 * are later needed by vblank and swap-completion
10887 * timestamping. They are derived from true hwmode.
10889 drm_calc_timestamping_constants(crtc
,
10890 &pipe_config
->adjusted_mode
);
10893 /* Only after disabling all output pipelines that will be changed can we
10894 * update the the output configuration. */
10895 intel_modeset_update_state(dev
, prepare_pipes
);
10897 if (dev_priv
->display
.modeset_global_resources
)
10898 dev_priv
->display
.modeset_global_resources(dev
);
10900 /* Set up the DPLL and any encoders state that needs to adjust or depend
10903 for_each_intel_crtc_masked(dev
, modeset_pipes
, intel_crtc
) {
10904 struct drm_framebuffer
*old_fb
= crtc
->primary
->fb
;
10905 struct drm_i915_gem_object
*old_obj
= intel_fb_obj(old_fb
);
10906 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
10908 mutex_lock(&dev
->struct_mutex
);
10909 ret
= intel_pin_and_fence_fb_obj(dev
,
10913 DRM_ERROR("pin & fence failed\n");
10914 mutex_unlock(&dev
->struct_mutex
);
10918 intel_unpin_fb_obj(old_obj
);
10919 i915_gem_track_fb(old_obj
, obj
,
10920 INTEL_FRONTBUFFER_PRIMARY(intel_crtc
->pipe
));
10921 mutex_unlock(&dev
->struct_mutex
);
10923 crtc
->primary
->fb
= fb
;
10927 ret
= dev_priv
->display
.crtc_mode_set(&intel_crtc
->base
,
10933 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
10934 for_each_intel_crtc_masked(dev
, prepare_pipes
, intel_crtc
) {
10935 update_scanline_offset(intel_crtc
);
10937 dev_priv
->display
.crtc_enable(&intel_crtc
->base
);
10940 /* FIXME: add subpixel order */
10942 if (ret
&& crtc
->enabled
)
10943 crtc
->mode
= *saved_mode
;
10946 kfree(pipe_config
);
10951 static int intel_set_mode(struct drm_crtc
*crtc
,
10952 struct drm_display_mode
*mode
,
10953 int x
, int y
, struct drm_framebuffer
*fb
)
10957 ret
= __intel_set_mode(crtc
, mode
, x
, y
, fb
);
10960 intel_modeset_check_state(crtc
->dev
);
10965 void intel_crtc_restore_mode(struct drm_crtc
*crtc
)
10967 intel_set_mode(crtc
, &crtc
->mode
, crtc
->x
, crtc
->y
, crtc
->primary
->fb
);
10970 #undef for_each_intel_crtc_masked
10972 static void intel_set_config_free(struct intel_set_config
*config
)
10977 kfree(config
->save_connector_encoders
);
10978 kfree(config
->save_encoder_crtcs
);
10979 kfree(config
->save_crtc_enabled
);
10983 static int intel_set_config_save_state(struct drm_device
*dev
,
10984 struct intel_set_config
*config
)
10986 struct drm_crtc
*crtc
;
10987 struct drm_encoder
*encoder
;
10988 struct drm_connector
*connector
;
10991 config
->save_crtc_enabled
=
10992 kcalloc(dev
->mode_config
.num_crtc
,
10993 sizeof(bool), GFP_KERNEL
);
10994 if (!config
->save_crtc_enabled
)
10997 config
->save_encoder_crtcs
=
10998 kcalloc(dev
->mode_config
.num_encoder
,
10999 sizeof(struct drm_crtc
*), GFP_KERNEL
);
11000 if (!config
->save_encoder_crtcs
)
11003 config
->save_connector_encoders
=
11004 kcalloc(dev
->mode_config
.num_connector
,
11005 sizeof(struct drm_encoder
*), GFP_KERNEL
);
11006 if (!config
->save_connector_encoders
)
11009 /* Copy data. Note that driver private data is not affected.
11010 * Should anything bad happen only the expected state is
11011 * restored, not the drivers personal bookkeeping.
11014 for_each_crtc(dev
, crtc
) {
11015 config
->save_crtc_enabled
[count
++] = crtc
->enabled
;
11019 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
) {
11020 config
->save_encoder_crtcs
[count
++] = encoder
->crtc
;
11024 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
11025 config
->save_connector_encoders
[count
++] = connector
->encoder
;
11031 static void intel_set_config_restore_state(struct drm_device
*dev
,
11032 struct intel_set_config
*config
)
11034 struct intel_crtc
*crtc
;
11035 struct intel_encoder
*encoder
;
11036 struct intel_connector
*connector
;
11040 for_each_intel_crtc(dev
, crtc
) {
11041 crtc
->new_enabled
= config
->save_crtc_enabled
[count
++];
11043 if (crtc
->new_enabled
)
11044 crtc
->new_config
= &crtc
->config
;
11046 crtc
->new_config
= NULL
;
11050 for_each_intel_encoder(dev
, encoder
) {
11051 encoder
->new_crtc
=
11052 to_intel_crtc(config
->save_encoder_crtcs
[count
++]);
11056 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, base
.head
) {
11057 connector
->new_encoder
=
11058 to_intel_encoder(config
->save_connector_encoders
[count
++]);
11063 is_crtc_connector_off(struct drm_mode_set
*set
)
11067 if (set
->num_connectors
== 0)
11070 if (WARN_ON(set
->connectors
== NULL
))
11073 for (i
= 0; i
< set
->num_connectors
; i
++)
11074 if (set
->connectors
[i
]->encoder
&&
11075 set
->connectors
[i
]->encoder
->crtc
== set
->crtc
&&
11076 set
->connectors
[i
]->dpms
!= DRM_MODE_DPMS_ON
)
11083 intel_set_config_compute_mode_changes(struct drm_mode_set
*set
,
11084 struct intel_set_config
*config
)
11087 /* We should be able to check here if the fb has the same properties
11088 * and then just flip_or_move it */
11089 if (is_crtc_connector_off(set
)) {
11090 config
->mode_changed
= true;
11091 } else if (set
->crtc
->primary
->fb
!= set
->fb
) {
11093 * If we have no fb, we can only flip as long as the crtc is
11094 * active, otherwise we need a full mode set. The crtc may
11095 * be active if we've only disabled the primary plane, or
11096 * in fastboot situations.
11098 if (set
->crtc
->primary
->fb
== NULL
) {
11099 struct intel_crtc
*intel_crtc
=
11100 to_intel_crtc(set
->crtc
);
11102 if (intel_crtc
->active
) {
11103 DRM_DEBUG_KMS("crtc has no fb, will flip\n");
11104 config
->fb_changed
= true;
11106 DRM_DEBUG_KMS("inactive crtc, full mode set\n");
11107 config
->mode_changed
= true;
11109 } else if (set
->fb
== NULL
) {
11110 config
->mode_changed
= true;
11111 } else if (set
->fb
->pixel_format
!=
11112 set
->crtc
->primary
->fb
->pixel_format
) {
11113 config
->mode_changed
= true;
11115 config
->fb_changed
= true;
11119 if (set
->fb
&& (set
->x
!= set
->crtc
->x
|| set
->y
!= set
->crtc
->y
))
11120 config
->fb_changed
= true;
11122 if (set
->mode
&& !drm_mode_equal(set
->mode
, &set
->crtc
->mode
)) {
11123 DRM_DEBUG_KMS("modes are different, full mode set\n");
11124 drm_mode_debug_printmodeline(&set
->crtc
->mode
);
11125 drm_mode_debug_printmodeline(set
->mode
);
11126 config
->mode_changed
= true;
11129 DRM_DEBUG_KMS("computed changes for [CRTC:%d], mode_changed=%d, fb_changed=%d\n",
11130 set
->crtc
->base
.id
, config
->mode_changed
, config
->fb_changed
);
11134 intel_modeset_stage_output_state(struct drm_device
*dev
,
11135 struct drm_mode_set
*set
,
11136 struct intel_set_config
*config
)
11138 struct intel_connector
*connector
;
11139 struct intel_encoder
*encoder
;
11140 struct intel_crtc
*crtc
;
11143 /* The upper layers ensure that we either disable a crtc or have a list
11144 * of connectors. For paranoia, double-check this. */
11145 WARN_ON(!set
->fb
&& (set
->num_connectors
!= 0));
11146 WARN_ON(set
->fb
&& (set
->num_connectors
== 0));
11148 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
11150 /* Otherwise traverse passed in connector list and get encoders
11152 for (ro
= 0; ro
< set
->num_connectors
; ro
++) {
11153 if (set
->connectors
[ro
] == &connector
->base
) {
11154 connector
->new_encoder
= intel_find_encoder(connector
, to_intel_crtc(set
->crtc
)->pipe
);
11159 /* If we disable the crtc, disable all its connectors. Also, if
11160 * the connector is on the changing crtc but not on the new
11161 * connector list, disable it. */
11162 if ((!set
->fb
|| ro
== set
->num_connectors
) &&
11163 connector
->base
.encoder
&&
11164 connector
->base
.encoder
->crtc
== set
->crtc
) {
11165 connector
->new_encoder
= NULL
;
11167 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
11168 connector
->base
.base
.id
,
11169 connector
->base
.name
);
11173 if (&connector
->new_encoder
->base
!= connector
->base
.encoder
) {
11174 DRM_DEBUG_KMS("encoder changed, full mode switch\n");
11175 config
->mode_changed
= true;
11178 /* connector->new_encoder is now updated for all connectors. */
11180 /* Update crtc of enabled connectors. */
11181 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
11183 struct drm_crtc
*new_crtc
;
11185 if (!connector
->new_encoder
)
11188 new_crtc
= connector
->new_encoder
->base
.crtc
;
11190 for (ro
= 0; ro
< set
->num_connectors
; ro
++) {
11191 if (set
->connectors
[ro
] == &connector
->base
)
11192 new_crtc
= set
->crtc
;
11195 /* Make sure the new CRTC will work with the encoder */
11196 if (!drm_encoder_crtc_ok(&connector
->new_encoder
->base
,
11200 connector
->new_encoder
->new_crtc
= to_intel_crtc(new_crtc
);
11202 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
11203 connector
->base
.base
.id
,
11204 connector
->base
.name
,
11205 new_crtc
->base
.id
);
11208 /* Check for any encoders that needs to be disabled. */
11209 for_each_intel_encoder(dev
, encoder
) {
11210 int num_connectors
= 0;
11211 list_for_each_entry(connector
,
11212 &dev
->mode_config
.connector_list
,
11214 if (connector
->new_encoder
== encoder
) {
11215 WARN_ON(!connector
->new_encoder
->new_crtc
);
11220 if (num_connectors
== 0)
11221 encoder
->new_crtc
= NULL
;
11222 else if (num_connectors
> 1)
11225 /* Only now check for crtc changes so we don't miss encoders
11226 * that will be disabled. */
11227 if (&encoder
->new_crtc
->base
!= encoder
->base
.crtc
) {
11228 DRM_DEBUG_KMS("crtc changed, full mode switch\n");
11229 config
->mode_changed
= true;
11232 /* Now we've also updated encoder->new_crtc for all encoders. */
11233 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
11235 if (connector
->new_encoder
)
11236 if (connector
->new_encoder
!= connector
->encoder
)
11237 connector
->encoder
= connector
->new_encoder
;
11239 for_each_intel_crtc(dev
, crtc
) {
11240 crtc
->new_enabled
= false;
11242 for_each_intel_encoder(dev
, encoder
) {
11243 if (encoder
->new_crtc
== crtc
) {
11244 crtc
->new_enabled
= true;
11249 if (crtc
->new_enabled
!= crtc
->base
.enabled
) {
11250 DRM_DEBUG_KMS("crtc %sabled, full mode switch\n",
11251 crtc
->new_enabled
? "en" : "dis");
11252 config
->mode_changed
= true;
11255 if (crtc
->new_enabled
)
11256 crtc
->new_config
= &crtc
->config
;
11258 crtc
->new_config
= NULL
;
11264 static void disable_crtc_nofb(struct intel_crtc
*crtc
)
11266 struct drm_device
*dev
= crtc
->base
.dev
;
11267 struct intel_encoder
*encoder
;
11268 struct intel_connector
*connector
;
11270 DRM_DEBUG_KMS("Trying to restore without FB -> disabling pipe %c\n",
11271 pipe_name(crtc
->pipe
));
11273 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, base
.head
) {
11274 if (connector
->new_encoder
&&
11275 connector
->new_encoder
->new_crtc
== crtc
)
11276 connector
->new_encoder
= NULL
;
11279 for_each_intel_encoder(dev
, encoder
) {
11280 if (encoder
->new_crtc
== crtc
)
11281 encoder
->new_crtc
= NULL
;
11284 crtc
->new_enabled
= false;
11285 crtc
->new_config
= NULL
;
11288 static int intel_crtc_set_config(struct drm_mode_set
*set
)
11290 struct drm_device
*dev
;
11291 struct drm_mode_set save_set
;
11292 struct intel_set_config
*config
;
11296 BUG_ON(!set
->crtc
);
11297 BUG_ON(!set
->crtc
->helper_private
);
11299 /* Enforce sane interface api - has been abused by the fb helper. */
11300 BUG_ON(!set
->mode
&& set
->fb
);
11301 BUG_ON(set
->fb
&& set
->num_connectors
== 0);
11304 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
11305 set
->crtc
->base
.id
, set
->fb
->base
.id
,
11306 (int)set
->num_connectors
, set
->x
, set
->y
);
11308 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set
->crtc
->base
.id
);
11311 dev
= set
->crtc
->dev
;
11314 config
= kzalloc(sizeof(*config
), GFP_KERNEL
);
11318 ret
= intel_set_config_save_state(dev
, config
);
11322 save_set
.crtc
= set
->crtc
;
11323 save_set
.mode
= &set
->crtc
->mode
;
11324 save_set
.x
= set
->crtc
->x
;
11325 save_set
.y
= set
->crtc
->y
;
11326 save_set
.fb
= set
->crtc
->primary
->fb
;
11328 /* Compute whether we need a full modeset, only an fb base update or no
11329 * change at all. In the future we might also check whether only the
11330 * mode changed, e.g. for LVDS where we only change the panel fitter in
11332 intel_set_config_compute_mode_changes(set
, config
);
11334 ret
= intel_modeset_stage_output_state(dev
, set
, config
);
11338 if (config
->mode_changed
) {
11339 ret
= intel_set_mode(set
->crtc
, set
->mode
,
11340 set
->x
, set
->y
, set
->fb
);
11341 } else if (config
->fb_changed
) {
11342 struct intel_crtc
*intel_crtc
= to_intel_crtc(set
->crtc
);
11344 intel_crtc_wait_for_pending_flips(set
->crtc
);
11346 ret
= intel_pipe_set_base(set
->crtc
,
11347 set
->x
, set
->y
, set
->fb
);
11350 * We need to make sure the primary plane is re-enabled if it
11351 * has previously been turned off.
11353 if (!intel_crtc
->primary_enabled
&& ret
== 0) {
11354 WARN_ON(!intel_crtc
->active
);
11355 intel_enable_primary_hw_plane(set
->crtc
->primary
, set
->crtc
);
11359 * In the fastboot case this may be our only check of the
11360 * state after boot. It would be better to only do it on
11361 * the first update, but we don't have a nice way of doing that
11362 * (and really, set_config isn't used much for high freq page
11363 * flipping, so increasing its cost here shouldn't be a big
11366 if (i915
.fastboot
&& ret
== 0)
11367 intel_modeset_check_state(set
->crtc
->dev
);
11371 DRM_DEBUG_KMS("failed to set mode on [CRTC:%d], err = %d\n",
11372 set
->crtc
->base
.id
, ret
);
11374 intel_set_config_restore_state(dev
, config
);
11377 * HACK: if the pipe was on, but we didn't have a framebuffer,
11378 * force the pipe off to avoid oopsing in the modeset code
11379 * due to fb==NULL. This should only happen during boot since
11380 * we don't yet reconstruct the FB from the hardware state.
11382 if (to_intel_crtc(save_set
.crtc
)->new_enabled
&& !save_set
.fb
)
11383 disable_crtc_nofb(to_intel_crtc(save_set
.crtc
));
11385 /* Try to restore the config */
11386 if (config
->mode_changed
&&
11387 intel_set_mode(save_set
.crtc
, save_set
.mode
,
11388 save_set
.x
, save_set
.y
, save_set
.fb
))
11389 DRM_ERROR("failed to restore config after modeset failure\n");
11393 intel_set_config_free(config
);
11397 static const struct drm_crtc_funcs intel_crtc_funcs
= {
11398 .gamma_set
= intel_crtc_gamma_set
,
11399 .set_config
= intel_crtc_set_config
,
11400 .destroy
= intel_crtc_destroy
,
11401 .page_flip
= intel_crtc_page_flip
,
11404 static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private
*dev_priv
,
11405 struct intel_shared_dpll
*pll
,
11406 struct intel_dpll_hw_state
*hw_state
)
11410 if (!intel_display_power_enabled(dev_priv
, POWER_DOMAIN_PLLS
))
11413 val
= I915_READ(PCH_DPLL(pll
->id
));
11414 hw_state
->dpll
= val
;
11415 hw_state
->fp0
= I915_READ(PCH_FP0(pll
->id
));
11416 hw_state
->fp1
= I915_READ(PCH_FP1(pll
->id
));
11418 return val
& DPLL_VCO_ENABLE
;
11421 static void ibx_pch_dpll_mode_set(struct drm_i915_private
*dev_priv
,
11422 struct intel_shared_dpll
*pll
)
11424 I915_WRITE(PCH_FP0(pll
->id
), pll
->hw_state
.fp0
);
11425 I915_WRITE(PCH_FP1(pll
->id
), pll
->hw_state
.fp1
);
11428 static void ibx_pch_dpll_enable(struct drm_i915_private
*dev_priv
,
11429 struct intel_shared_dpll
*pll
)
11431 /* PCH refclock must be enabled first */
11432 ibx_assert_pch_refclk_enabled(dev_priv
);
11434 I915_WRITE(PCH_DPLL(pll
->id
), pll
->hw_state
.dpll
);
11436 /* Wait for the clocks to stabilize. */
11437 POSTING_READ(PCH_DPLL(pll
->id
));
11440 /* The pixel multiplier can only be updated once the
11441 * DPLL is enabled and the clocks are stable.
11443 * So write it again.
11445 I915_WRITE(PCH_DPLL(pll
->id
), pll
->hw_state
.dpll
);
11446 POSTING_READ(PCH_DPLL(pll
->id
));
11450 static void ibx_pch_dpll_disable(struct drm_i915_private
*dev_priv
,
11451 struct intel_shared_dpll
*pll
)
11453 struct drm_device
*dev
= dev_priv
->dev
;
11454 struct intel_crtc
*crtc
;
11456 /* Make sure no transcoder isn't still depending on us. */
11457 for_each_intel_crtc(dev
, crtc
) {
11458 if (intel_crtc_to_shared_dpll(crtc
) == pll
)
11459 assert_pch_transcoder_disabled(dev_priv
, crtc
->pipe
);
11462 I915_WRITE(PCH_DPLL(pll
->id
), 0);
11463 POSTING_READ(PCH_DPLL(pll
->id
));
11467 static char *ibx_pch_dpll_names
[] = {
11472 static void ibx_pch_dpll_init(struct drm_device
*dev
)
11474 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11477 dev_priv
->num_shared_dpll
= 2;
11479 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
11480 dev_priv
->shared_dplls
[i
].id
= i
;
11481 dev_priv
->shared_dplls
[i
].name
= ibx_pch_dpll_names
[i
];
11482 dev_priv
->shared_dplls
[i
].mode_set
= ibx_pch_dpll_mode_set
;
11483 dev_priv
->shared_dplls
[i
].enable
= ibx_pch_dpll_enable
;
11484 dev_priv
->shared_dplls
[i
].disable
= ibx_pch_dpll_disable
;
11485 dev_priv
->shared_dplls
[i
].get_hw_state
=
11486 ibx_pch_dpll_get_hw_state
;
11490 static void intel_shared_dpll_init(struct drm_device
*dev
)
11492 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11495 intel_ddi_pll_init(dev
);
11496 else if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
11497 ibx_pch_dpll_init(dev
);
11499 dev_priv
->num_shared_dpll
= 0;
11501 BUG_ON(dev_priv
->num_shared_dpll
> I915_NUM_PLLS
);
11505 intel_primary_plane_disable(struct drm_plane
*plane
)
11507 struct drm_device
*dev
= plane
->dev
;
11508 struct intel_crtc
*intel_crtc
;
11513 BUG_ON(!plane
->crtc
);
11515 intel_crtc
= to_intel_crtc(plane
->crtc
);
11518 * Even though we checked plane->fb above, it's still possible that
11519 * the primary plane has been implicitly disabled because the crtc
11520 * coordinates given weren't visible, or because we detected
11521 * that it was 100% covered by a sprite plane. Or, the CRTC may be
11522 * off and we've set a fb, but haven't actually turned on the CRTC yet.
11523 * In either case, we need to unpin the FB and let the fb pointer get
11524 * updated, but otherwise we don't need to touch the hardware.
11526 if (!intel_crtc
->primary_enabled
)
11527 goto disable_unpin
;
11529 intel_crtc_wait_for_pending_flips(plane
->crtc
);
11530 intel_disable_primary_hw_plane(plane
, plane
->crtc
);
11533 mutex_lock(&dev
->struct_mutex
);
11534 i915_gem_track_fb(intel_fb_obj(plane
->fb
), NULL
,
11535 INTEL_FRONTBUFFER_PRIMARY(intel_crtc
->pipe
));
11536 intel_unpin_fb_obj(intel_fb_obj(plane
->fb
));
11537 mutex_unlock(&dev
->struct_mutex
);
11544 intel_primary_plane_setplane(struct drm_plane
*plane
, struct drm_crtc
*crtc
,
11545 struct drm_framebuffer
*fb
, int crtc_x
, int crtc_y
,
11546 unsigned int crtc_w
, unsigned int crtc_h
,
11547 uint32_t src_x
, uint32_t src_y
,
11548 uint32_t src_w
, uint32_t src_h
)
11550 struct drm_device
*dev
= crtc
->dev
;
11551 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11552 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
11553 struct drm_i915_gem_object
*old_obj
= intel_fb_obj(plane
->fb
);
11554 struct drm_rect dest
= {
11555 /* integer pixels */
11558 .x2
= crtc_x
+ crtc_w
,
11559 .y2
= crtc_y
+ crtc_h
,
11561 struct drm_rect src
= {
11562 /* 16.16 fixed point */
11565 .x2
= src_x
+ src_w
,
11566 .y2
= src_y
+ src_h
,
11568 const struct drm_rect clip
= {
11569 /* integer pixels */
11570 .x2
= intel_crtc
->active
? intel_crtc
->config
.pipe_src_w
: 0,
11571 .y2
= intel_crtc
->active
? intel_crtc
->config
.pipe_src_h
: 0,
11576 ret
= drm_plane_helper_check_update(plane
, crtc
, fb
,
11577 &src
, &dest
, &clip
,
11578 DRM_PLANE_HELPER_NO_SCALING
,
11579 DRM_PLANE_HELPER_NO_SCALING
,
11580 false, true, &visible
);
11586 * If the CRTC isn't enabled, we're just pinning the framebuffer,
11587 * updating the fb pointer, and returning without touching the
11588 * hardware. This allows us to later do a drmModeSetCrtc with fb=-1 to
11589 * turn on the display with all planes setup as desired.
11591 if (!crtc
->enabled
) {
11592 mutex_lock(&dev
->struct_mutex
);
11595 * If we already called setplane while the crtc was disabled,
11596 * we may have an fb pinned; unpin it.
11599 intel_unpin_fb_obj(old_obj
);
11601 i915_gem_track_fb(old_obj
, obj
,
11602 INTEL_FRONTBUFFER_PRIMARY(intel_crtc
->pipe
));
11604 /* Pin and return without programming hardware */
11605 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, NULL
);
11606 mutex_unlock(&dev
->struct_mutex
);
11611 intel_crtc_wait_for_pending_flips(crtc
);
11614 * If clipping results in a non-visible primary plane, we'll disable
11615 * the primary plane. Note that this is a bit different than what
11616 * happens if userspace explicitly disables the plane by passing fb=0
11617 * because plane->fb still gets set and pinned.
11620 mutex_lock(&dev
->struct_mutex
);
11623 * Try to pin the new fb first so that we can bail out if we
11626 if (plane
->fb
!= fb
) {
11627 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, NULL
);
11629 mutex_unlock(&dev
->struct_mutex
);
11634 i915_gem_track_fb(old_obj
, obj
,
11635 INTEL_FRONTBUFFER_PRIMARY(intel_crtc
->pipe
));
11637 if (intel_crtc
->primary_enabled
)
11638 intel_disable_primary_hw_plane(plane
, crtc
);
11641 if (plane
->fb
!= fb
)
11643 intel_unpin_fb_obj(old_obj
);
11645 mutex_unlock(&dev
->struct_mutex
);
11650 ret
= intel_pipe_set_base(crtc
, src
.x1
, src
.y1
, fb
);
11654 if (!intel_crtc
->primary_enabled
)
11655 intel_enable_primary_hw_plane(plane
, crtc
);
11660 /* Common destruction function for both primary and cursor planes */
11661 static void intel_plane_destroy(struct drm_plane
*plane
)
11663 struct intel_plane
*intel_plane
= to_intel_plane(plane
);
11664 drm_plane_cleanup(plane
);
11665 kfree(intel_plane
);
11668 static const struct drm_plane_funcs intel_primary_plane_funcs
= {
11669 .update_plane
= intel_primary_plane_setplane
,
11670 .disable_plane
= intel_primary_plane_disable
,
11671 .destroy
= intel_plane_destroy
,
11674 static struct drm_plane
*intel_primary_plane_create(struct drm_device
*dev
,
11677 struct intel_plane
*primary
;
11678 const uint32_t *intel_primary_formats
;
11681 primary
= kzalloc(sizeof(*primary
), GFP_KERNEL
);
11682 if (primary
== NULL
)
11685 primary
->can_scale
= false;
11686 primary
->max_downscale
= 1;
11687 primary
->pipe
= pipe
;
11688 primary
->plane
= pipe
;
11689 if (HAS_FBC(dev
) && INTEL_INFO(dev
)->gen
< 4)
11690 primary
->plane
= !pipe
;
11692 if (INTEL_INFO(dev
)->gen
<= 3) {
11693 intel_primary_formats
= intel_primary_formats_gen2
;
11694 num_formats
= ARRAY_SIZE(intel_primary_formats_gen2
);
11696 intel_primary_formats
= intel_primary_formats_gen4
;
11697 num_formats
= ARRAY_SIZE(intel_primary_formats_gen4
);
11700 drm_universal_plane_init(dev
, &primary
->base
, 0,
11701 &intel_primary_plane_funcs
,
11702 intel_primary_formats
, num_formats
,
11703 DRM_PLANE_TYPE_PRIMARY
);
11704 return &primary
->base
;
11708 intel_cursor_plane_disable(struct drm_plane
*plane
)
11713 BUG_ON(!plane
->crtc
);
11715 return intel_crtc_cursor_set_obj(plane
->crtc
, NULL
, 0, 0);
11719 intel_cursor_plane_update(struct drm_plane
*plane
, struct drm_crtc
*crtc
,
11720 struct drm_framebuffer
*fb
, int crtc_x
, int crtc_y
,
11721 unsigned int crtc_w
, unsigned int crtc_h
,
11722 uint32_t src_x
, uint32_t src_y
,
11723 uint32_t src_w
, uint32_t src_h
)
11725 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11726 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
11727 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
11728 struct drm_rect dest
= {
11729 /* integer pixels */
11732 .x2
= crtc_x
+ crtc_w
,
11733 .y2
= crtc_y
+ crtc_h
,
11735 struct drm_rect src
= {
11736 /* 16.16 fixed point */
11739 .x2
= src_x
+ src_w
,
11740 .y2
= src_y
+ src_h
,
11742 const struct drm_rect clip
= {
11743 /* integer pixels */
11744 .x2
= intel_crtc
->config
.pipe_src_w
,
11745 .y2
= intel_crtc
->config
.pipe_src_h
,
11750 ret
= drm_plane_helper_check_update(plane
, crtc
, fb
,
11751 &src
, &dest
, &clip
,
11752 DRM_PLANE_HELPER_NO_SCALING
,
11753 DRM_PLANE_HELPER_NO_SCALING
,
11754 true, true, &visible
);
11758 crtc
->cursor_x
= crtc_x
;
11759 crtc
->cursor_y
= crtc_y
;
11760 if (fb
!= crtc
->cursor
->fb
) {
11761 return intel_crtc_cursor_set_obj(crtc
, obj
, crtc_w
, crtc_h
);
11763 intel_crtc_update_cursor(crtc
, visible
);
11767 static const struct drm_plane_funcs intel_cursor_plane_funcs
= {
11768 .update_plane
= intel_cursor_plane_update
,
11769 .disable_plane
= intel_cursor_plane_disable
,
11770 .destroy
= intel_plane_destroy
,
11773 static struct drm_plane
*intel_cursor_plane_create(struct drm_device
*dev
,
11776 struct intel_plane
*cursor
;
11778 cursor
= kzalloc(sizeof(*cursor
), GFP_KERNEL
);
11779 if (cursor
== NULL
)
11782 cursor
->can_scale
= false;
11783 cursor
->max_downscale
= 1;
11784 cursor
->pipe
= pipe
;
11785 cursor
->plane
= pipe
;
11787 drm_universal_plane_init(dev
, &cursor
->base
, 0,
11788 &intel_cursor_plane_funcs
,
11789 intel_cursor_formats
,
11790 ARRAY_SIZE(intel_cursor_formats
),
11791 DRM_PLANE_TYPE_CURSOR
);
11792 return &cursor
->base
;
11795 static void intel_crtc_init(struct drm_device
*dev
, int pipe
)
11797 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11798 struct intel_crtc
*intel_crtc
;
11799 struct drm_plane
*primary
= NULL
;
11800 struct drm_plane
*cursor
= NULL
;
11803 intel_crtc
= kzalloc(sizeof(*intel_crtc
), GFP_KERNEL
);
11804 if (intel_crtc
== NULL
)
11807 primary
= intel_primary_plane_create(dev
, pipe
);
11811 cursor
= intel_cursor_plane_create(dev
, pipe
);
11815 ret
= drm_crtc_init_with_planes(dev
, &intel_crtc
->base
, primary
,
11816 cursor
, &intel_crtc_funcs
);
11820 drm_mode_crtc_set_gamma_size(&intel_crtc
->base
, 256);
11821 for (i
= 0; i
< 256; i
++) {
11822 intel_crtc
->lut_r
[i
] = i
;
11823 intel_crtc
->lut_g
[i
] = i
;
11824 intel_crtc
->lut_b
[i
] = i
;
11828 * On gen2/3 only plane A can do fbc, but the panel fitter and lvds port
11829 * is hooked to pipe B. Hence we want plane A feeding pipe B.
11831 intel_crtc
->pipe
= pipe
;
11832 intel_crtc
->plane
= pipe
;
11833 if (HAS_FBC(dev
) && INTEL_INFO(dev
)->gen
< 4) {
11834 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
11835 intel_crtc
->plane
= !pipe
;
11838 intel_crtc
->cursor_base
= ~0;
11839 intel_crtc
->cursor_cntl
= ~0;
11841 BUG_ON(pipe
>= ARRAY_SIZE(dev_priv
->plane_to_crtc_mapping
) ||
11842 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] != NULL
);
11843 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] = &intel_crtc
->base
;
11844 dev_priv
->pipe_to_crtc_mapping
[intel_crtc
->pipe
] = &intel_crtc
->base
;
11846 drm_crtc_helper_add(&intel_crtc
->base
, &intel_helper_funcs
);
11848 WARN_ON(drm_crtc_index(&intel_crtc
->base
) != intel_crtc
->pipe
);
11853 drm_plane_cleanup(primary
);
11855 drm_plane_cleanup(cursor
);
11859 enum pipe
intel_get_pipe_from_connector(struct intel_connector
*connector
)
11861 struct drm_encoder
*encoder
= connector
->base
.encoder
;
11862 struct drm_device
*dev
= connector
->base
.dev
;
11864 WARN_ON(!drm_modeset_is_locked(&dev
->mode_config
.connection_mutex
));
11867 return INVALID_PIPE
;
11869 return to_intel_crtc(encoder
->crtc
)->pipe
;
11872 int intel_get_pipe_from_crtc_id(struct drm_device
*dev
, void *data
,
11873 struct drm_file
*file
)
11875 struct drm_i915_get_pipe_from_crtc_id
*pipe_from_crtc_id
= data
;
11876 struct drm_crtc
*drmmode_crtc
;
11877 struct intel_crtc
*crtc
;
11879 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
11882 drmmode_crtc
= drm_crtc_find(dev
, pipe_from_crtc_id
->crtc_id
);
11884 if (!drmmode_crtc
) {
11885 DRM_ERROR("no such CRTC id\n");
11889 crtc
= to_intel_crtc(drmmode_crtc
);
11890 pipe_from_crtc_id
->pipe
= crtc
->pipe
;
11895 static int intel_encoder_clones(struct intel_encoder
*encoder
)
11897 struct drm_device
*dev
= encoder
->base
.dev
;
11898 struct intel_encoder
*source_encoder
;
11899 int index_mask
= 0;
11902 for_each_intel_encoder(dev
, source_encoder
) {
11903 if (encoders_cloneable(encoder
, source_encoder
))
11904 index_mask
|= (1 << entry
);
11912 static bool has_edp_a(struct drm_device
*dev
)
11914 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11916 if (!IS_MOBILE(dev
))
11919 if ((I915_READ(DP_A
) & DP_DETECTED
) == 0)
11922 if (IS_GEN5(dev
) && (I915_READ(FUSE_STRAP
) & ILK_eDP_A_DISABLE
))
11928 const char *intel_output_name(int output
)
11930 static const char *names
[] = {
11931 [INTEL_OUTPUT_UNUSED
] = "Unused",
11932 [INTEL_OUTPUT_ANALOG
] = "Analog",
11933 [INTEL_OUTPUT_DVO
] = "DVO",
11934 [INTEL_OUTPUT_SDVO
] = "SDVO",
11935 [INTEL_OUTPUT_LVDS
] = "LVDS",
11936 [INTEL_OUTPUT_TVOUT
] = "TV",
11937 [INTEL_OUTPUT_HDMI
] = "HDMI",
11938 [INTEL_OUTPUT_DISPLAYPORT
] = "DisplayPort",
11939 [INTEL_OUTPUT_EDP
] = "eDP",
11940 [INTEL_OUTPUT_DSI
] = "DSI",
11941 [INTEL_OUTPUT_UNKNOWN
] = "Unknown",
11944 if (output
< 0 || output
>= ARRAY_SIZE(names
) || !names
[output
])
11947 return names
[output
];
11950 static bool intel_crt_present(struct drm_device
*dev
)
11952 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11957 if (IS_CHERRYVIEW(dev
))
11960 if (IS_VALLEYVIEW(dev
) && !dev_priv
->vbt
.int_crt_support
)
11966 static void intel_setup_outputs(struct drm_device
*dev
)
11968 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11969 struct intel_encoder
*encoder
;
11970 bool dpd_is_edp
= false;
11972 intel_lvds_init(dev
);
11974 if (intel_crt_present(dev
))
11975 intel_crt_init(dev
);
11977 if (HAS_DDI(dev
)) {
11980 /* Haswell uses DDI functions to detect digital outputs */
11981 found
= I915_READ(DDI_BUF_CTL_A
) & DDI_INIT_DISPLAY_DETECTED
;
11982 /* DDI A only supports eDP */
11984 intel_ddi_init(dev
, PORT_A
);
11986 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
11988 found
= I915_READ(SFUSE_STRAP
);
11990 if (found
& SFUSE_STRAP_DDIB_DETECTED
)
11991 intel_ddi_init(dev
, PORT_B
);
11992 if (found
& SFUSE_STRAP_DDIC_DETECTED
)
11993 intel_ddi_init(dev
, PORT_C
);
11994 if (found
& SFUSE_STRAP_DDID_DETECTED
)
11995 intel_ddi_init(dev
, PORT_D
);
11996 } else if (HAS_PCH_SPLIT(dev
)) {
11998 dpd_is_edp
= intel_dp_is_edp(dev
, PORT_D
);
12000 if (has_edp_a(dev
))
12001 intel_dp_init(dev
, DP_A
, PORT_A
);
12003 if (I915_READ(PCH_HDMIB
) & SDVO_DETECTED
) {
12004 /* PCH SDVOB multiplex with HDMIB */
12005 found
= intel_sdvo_init(dev
, PCH_SDVOB
, true);
12007 intel_hdmi_init(dev
, PCH_HDMIB
, PORT_B
);
12008 if (!found
&& (I915_READ(PCH_DP_B
) & DP_DETECTED
))
12009 intel_dp_init(dev
, PCH_DP_B
, PORT_B
);
12012 if (I915_READ(PCH_HDMIC
) & SDVO_DETECTED
)
12013 intel_hdmi_init(dev
, PCH_HDMIC
, PORT_C
);
12015 if (!dpd_is_edp
&& I915_READ(PCH_HDMID
) & SDVO_DETECTED
)
12016 intel_hdmi_init(dev
, PCH_HDMID
, PORT_D
);
12018 if (I915_READ(PCH_DP_C
) & DP_DETECTED
)
12019 intel_dp_init(dev
, PCH_DP_C
, PORT_C
);
12021 if (I915_READ(PCH_DP_D
) & DP_DETECTED
)
12022 intel_dp_init(dev
, PCH_DP_D
, PORT_D
);
12023 } else if (IS_VALLEYVIEW(dev
)) {
12024 if (I915_READ(VLV_DISPLAY_BASE
+ GEN4_HDMIB
) & SDVO_DETECTED
) {
12025 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ GEN4_HDMIB
,
12027 if (I915_READ(VLV_DISPLAY_BASE
+ DP_B
) & DP_DETECTED
)
12028 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_B
, PORT_B
);
12031 if (I915_READ(VLV_DISPLAY_BASE
+ GEN4_HDMIC
) & SDVO_DETECTED
) {
12032 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ GEN4_HDMIC
,
12034 if (I915_READ(VLV_DISPLAY_BASE
+ DP_C
) & DP_DETECTED
)
12035 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_C
, PORT_C
);
12038 if (IS_CHERRYVIEW(dev
)) {
12039 if (I915_READ(VLV_DISPLAY_BASE
+ CHV_HDMID
) & SDVO_DETECTED
) {
12040 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ CHV_HDMID
,
12042 if (I915_READ(VLV_DISPLAY_BASE
+ DP_D
) & DP_DETECTED
)
12043 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_D
, PORT_D
);
12047 intel_dsi_init(dev
);
12048 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev
)) {
12049 bool found
= false;
12051 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
12052 DRM_DEBUG_KMS("probing SDVOB\n");
12053 found
= intel_sdvo_init(dev
, GEN3_SDVOB
, true);
12054 if (!found
&& SUPPORTS_INTEGRATED_HDMI(dev
)) {
12055 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
12056 intel_hdmi_init(dev
, GEN4_HDMIB
, PORT_B
);
12059 if (!found
&& SUPPORTS_INTEGRATED_DP(dev
))
12060 intel_dp_init(dev
, DP_B
, PORT_B
);
12063 /* Before G4X SDVOC doesn't have its own detect register */
12065 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
12066 DRM_DEBUG_KMS("probing SDVOC\n");
12067 found
= intel_sdvo_init(dev
, GEN3_SDVOC
, false);
12070 if (!found
&& (I915_READ(GEN3_SDVOC
) & SDVO_DETECTED
)) {
12072 if (SUPPORTS_INTEGRATED_HDMI(dev
)) {
12073 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
12074 intel_hdmi_init(dev
, GEN4_HDMIC
, PORT_C
);
12076 if (SUPPORTS_INTEGRATED_DP(dev
))
12077 intel_dp_init(dev
, DP_C
, PORT_C
);
12080 if (SUPPORTS_INTEGRATED_DP(dev
) &&
12081 (I915_READ(DP_D
) & DP_DETECTED
))
12082 intel_dp_init(dev
, DP_D
, PORT_D
);
12083 } else if (IS_GEN2(dev
))
12084 intel_dvo_init(dev
);
12086 if (SUPPORTS_TV(dev
))
12087 intel_tv_init(dev
);
12089 intel_edp_psr_init(dev
);
12091 for_each_intel_encoder(dev
, encoder
) {
12092 encoder
->base
.possible_crtcs
= encoder
->crtc_mask
;
12093 encoder
->base
.possible_clones
=
12094 intel_encoder_clones(encoder
);
12097 intel_init_pch_refclk(dev
);
12099 drm_helper_move_panel_connectors_to_head(dev
);
12102 static void intel_user_framebuffer_destroy(struct drm_framebuffer
*fb
)
12104 struct drm_device
*dev
= fb
->dev
;
12105 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
12107 drm_framebuffer_cleanup(fb
);
12108 mutex_lock(&dev
->struct_mutex
);
12109 WARN_ON(!intel_fb
->obj
->framebuffer_references
--);
12110 drm_gem_object_unreference(&intel_fb
->obj
->base
);
12111 mutex_unlock(&dev
->struct_mutex
);
12115 static int intel_user_framebuffer_create_handle(struct drm_framebuffer
*fb
,
12116 struct drm_file
*file
,
12117 unsigned int *handle
)
12119 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
12120 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
12122 return drm_gem_handle_create(file
, &obj
->base
, handle
);
12125 static const struct drm_framebuffer_funcs intel_fb_funcs
= {
12126 .destroy
= intel_user_framebuffer_destroy
,
12127 .create_handle
= intel_user_framebuffer_create_handle
,
12130 static int intel_framebuffer_init(struct drm_device
*dev
,
12131 struct intel_framebuffer
*intel_fb
,
12132 struct drm_mode_fb_cmd2
*mode_cmd
,
12133 struct drm_i915_gem_object
*obj
)
12135 int aligned_height
;
12139 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
12141 if (obj
->tiling_mode
== I915_TILING_Y
) {
12142 DRM_DEBUG("hardware does not support tiling Y\n");
12146 if (mode_cmd
->pitches
[0] & 63) {
12147 DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n",
12148 mode_cmd
->pitches
[0]);
12152 if (INTEL_INFO(dev
)->gen
>= 5 && !IS_VALLEYVIEW(dev
)) {
12153 pitch_limit
= 32*1024;
12154 } else if (INTEL_INFO(dev
)->gen
>= 4) {
12155 if (obj
->tiling_mode
)
12156 pitch_limit
= 16*1024;
12158 pitch_limit
= 32*1024;
12159 } else if (INTEL_INFO(dev
)->gen
>= 3) {
12160 if (obj
->tiling_mode
)
12161 pitch_limit
= 8*1024;
12163 pitch_limit
= 16*1024;
12165 /* XXX DSPC is limited to 4k tiled */
12166 pitch_limit
= 8*1024;
12168 if (mode_cmd
->pitches
[0] > pitch_limit
) {
12169 DRM_DEBUG("%s pitch (%d) must be at less than %d\n",
12170 obj
->tiling_mode
? "tiled" : "linear",
12171 mode_cmd
->pitches
[0], pitch_limit
);
12175 if (obj
->tiling_mode
!= I915_TILING_NONE
&&
12176 mode_cmd
->pitches
[0] != obj
->stride
) {
12177 DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n",
12178 mode_cmd
->pitches
[0], obj
->stride
);
12182 /* Reject formats not supported by any plane early. */
12183 switch (mode_cmd
->pixel_format
) {
12184 case DRM_FORMAT_C8
:
12185 case DRM_FORMAT_RGB565
:
12186 case DRM_FORMAT_XRGB8888
:
12187 case DRM_FORMAT_ARGB8888
:
12189 case DRM_FORMAT_XRGB1555
:
12190 case DRM_FORMAT_ARGB1555
:
12191 if (INTEL_INFO(dev
)->gen
> 3) {
12192 DRM_DEBUG("unsupported pixel format: %s\n",
12193 drm_get_format_name(mode_cmd
->pixel_format
));
12197 case DRM_FORMAT_XBGR8888
:
12198 case DRM_FORMAT_ABGR8888
:
12199 case DRM_FORMAT_XRGB2101010
:
12200 case DRM_FORMAT_ARGB2101010
:
12201 case DRM_FORMAT_XBGR2101010
:
12202 case DRM_FORMAT_ABGR2101010
:
12203 if (INTEL_INFO(dev
)->gen
< 4) {
12204 DRM_DEBUG("unsupported pixel format: %s\n",
12205 drm_get_format_name(mode_cmd
->pixel_format
));
12209 case DRM_FORMAT_YUYV
:
12210 case DRM_FORMAT_UYVY
:
12211 case DRM_FORMAT_YVYU
:
12212 case DRM_FORMAT_VYUY
:
12213 if (INTEL_INFO(dev
)->gen
< 5) {
12214 DRM_DEBUG("unsupported pixel format: %s\n",
12215 drm_get_format_name(mode_cmd
->pixel_format
));
12220 DRM_DEBUG("unsupported pixel format: %s\n",
12221 drm_get_format_name(mode_cmd
->pixel_format
));
12225 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
12226 if (mode_cmd
->offsets
[0] != 0)
12229 aligned_height
= intel_align_height(dev
, mode_cmd
->height
,
12231 /* FIXME drm helper for size checks (especially planar formats)? */
12232 if (obj
->base
.size
< aligned_height
* mode_cmd
->pitches
[0])
12235 drm_helper_mode_fill_fb_struct(&intel_fb
->base
, mode_cmd
);
12236 intel_fb
->obj
= obj
;
12237 intel_fb
->obj
->framebuffer_references
++;
12239 ret
= drm_framebuffer_init(dev
, &intel_fb
->base
, &intel_fb_funcs
);
12241 DRM_ERROR("framebuffer init failed %d\n", ret
);
12248 static struct drm_framebuffer
*
12249 intel_user_framebuffer_create(struct drm_device
*dev
,
12250 struct drm_file
*filp
,
12251 struct drm_mode_fb_cmd2
*mode_cmd
)
12253 struct drm_i915_gem_object
*obj
;
12255 obj
= to_intel_bo(drm_gem_object_lookup(dev
, filp
,
12256 mode_cmd
->handles
[0]));
12257 if (&obj
->base
== NULL
)
12258 return ERR_PTR(-ENOENT
);
12260 return intel_framebuffer_create(dev
, mode_cmd
, obj
);
12263 #ifndef CONFIG_DRM_I915_FBDEV
12264 static inline void intel_fbdev_output_poll_changed(struct drm_device
*dev
)
12269 static const struct drm_mode_config_funcs intel_mode_funcs
= {
12270 .fb_create
= intel_user_framebuffer_create
,
12271 .output_poll_changed
= intel_fbdev_output_poll_changed
,
12274 /* Set up chip specific display functions */
12275 static void intel_init_display(struct drm_device
*dev
)
12277 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12279 if (HAS_PCH_SPLIT(dev
) || IS_G4X(dev
))
12280 dev_priv
->display
.find_dpll
= g4x_find_best_dpll
;
12281 else if (IS_CHERRYVIEW(dev
))
12282 dev_priv
->display
.find_dpll
= chv_find_best_dpll
;
12283 else if (IS_VALLEYVIEW(dev
))
12284 dev_priv
->display
.find_dpll
= vlv_find_best_dpll
;
12285 else if (IS_PINEVIEW(dev
))
12286 dev_priv
->display
.find_dpll
= pnv_find_best_dpll
;
12288 dev_priv
->display
.find_dpll
= i9xx_find_best_dpll
;
12290 if (HAS_DDI(dev
)) {
12291 dev_priv
->display
.get_pipe_config
= haswell_get_pipe_config
;
12292 dev_priv
->display
.get_plane_config
= ironlake_get_plane_config
;
12293 dev_priv
->display
.crtc_mode_set
= haswell_crtc_mode_set
;
12294 dev_priv
->display
.crtc_enable
= haswell_crtc_enable
;
12295 dev_priv
->display
.crtc_disable
= haswell_crtc_disable
;
12296 dev_priv
->display
.off
= ironlake_crtc_off
;
12297 dev_priv
->display
.update_primary_plane
=
12298 ironlake_update_primary_plane
;
12299 } else if (HAS_PCH_SPLIT(dev
)) {
12300 dev_priv
->display
.get_pipe_config
= ironlake_get_pipe_config
;
12301 dev_priv
->display
.get_plane_config
= ironlake_get_plane_config
;
12302 dev_priv
->display
.crtc_mode_set
= ironlake_crtc_mode_set
;
12303 dev_priv
->display
.crtc_enable
= ironlake_crtc_enable
;
12304 dev_priv
->display
.crtc_disable
= ironlake_crtc_disable
;
12305 dev_priv
->display
.off
= ironlake_crtc_off
;
12306 dev_priv
->display
.update_primary_plane
=
12307 ironlake_update_primary_plane
;
12308 } else if (IS_VALLEYVIEW(dev
)) {
12309 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
12310 dev_priv
->display
.get_plane_config
= i9xx_get_plane_config
;
12311 dev_priv
->display
.crtc_mode_set
= i9xx_crtc_mode_set
;
12312 dev_priv
->display
.crtc_enable
= valleyview_crtc_enable
;
12313 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
12314 dev_priv
->display
.off
= i9xx_crtc_off
;
12315 dev_priv
->display
.update_primary_plane
=
12316 i9xx_update_primary_plane
;
12318 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
12319 dev_priv
->display
.get_plane_config
= i9xx_get_plane_config
;
12320 dev_priv
->display
.crtc_mode_set
= i9xx_crtc_mode_set
;
12321 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
12322 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
12323 dev_priv
->display
.off
= i9xx_crtc_off
;
12324 dev_priv
->display
.update_primary_plane
=
12325 i9xx_update_primary_plane
;
12328 /* Returns the core display clock speed */
12329 if (IS_VALLEYVIEW(dev
))
12330 dev_priv
->display
.get_display_clock_speed
=
12331 valleyview_get_display_clock_speed
;
12332 else if (IS_I945G(dev
) || (IS_G33(dev
) && !IS_PINEVIEW_M(dev
)))
12333 dev_priv
->display
.get_display_clock_speed
=
12334 i945_get_display_clock_speed
;
12335 else if (IS_I915G(dev
))
12336 dev_priv
->display
.get_display_clock_speed
=
12337 i915_get_display_clock_speed
;
12338 else if (IS_I945GM(dev
) || IS_845G(dev
))
12339 dev_priv
->display
.get_display_clock_speed
=
12340 i9xx_misc_get_display_clock_speed
;
12341 else if (IS_PINEVIEW(dev
))
12342 dev_priv
->display
.get_display_clock_speed
=
12343 pnv_get_display_clock_speed
;
12344 else if (IS_I915GM(dev
))
12345 dev_priv
->display
.get_display_clock_speed
=
12346 i915gm_get_display_clock_speed
;
12347 else if (IS_I865G(dev
))
12348 dev_priv
->display
.get_display_clock_speed
=
12349 i865_get_display_clock_speed
;
12350 else if (IS_I85X(dev
))
12351 dev_priv
->display
.get_display_clock_speed
=
12352 i855_get_display_clock_speed
;
12353 else /* 852, 830 */
12354 dev_priv
->display
.get_display_clock_speed
=
12355 i830_get_display_clock_speed
;
12358 dev_priv
->display
.write_eld
= g4x_write_eld
;
12359 } else if (IS_GEN5(dev
)) {
12360 dev_priv
->display
.fdi_link_train
= ironlake_fdi_link_train
;
12361 dev_priv
->display
.write_eld
= ironlake_write_eld
;
12362 } else if (IS_GEN6(dev
)) {
12363 dev_priv
->display
.fdi_link_train
= gen6_fdi_link_train
;
12364 dev_priv
->display
.write_eld
= ironlake_write_eld
;
12365 dev_priv
->display
.modeset_global_resources
=
12366 snb_modeset_global_resources
;
12367 } else if (IS_IVYBRIDGE(dev
)) {
12368 /* FIXME: detect B0+ stepping and use auto training */
12369 dev_priv
->display
.fdi_link_train
= ivb_manual_fdi_link_train
;
12370 dev_priv
->display
.write_eld
= ironlake_write_eld
;
12371 dev_priv
->display
.modeset_global_resources
=
12372 ivb_modeset_global_resources
;
12373 } else if (IS_HASWELL(dev
) || IS_GEN8(dev
)) {
12374 dev_priv
->display
.fdi_link_train
= hsw_fdi_link_train
;
12375 dev_priv
->display
.write_eld
= haswell_write_eld
;
12376 dev_priv
->display
.modeset_global_resources
=
12377 haswell_modeset_global_resources
;
12378 } else if (IS_VALLEYVIEW(dev
)) {
12379 dev_priv
->display
.modeset_global_resources
=
12380 valleyview_modeset_global_resources
;
12381 dev_priv
->display
.write_eld
= ironlake_write_eld
;
12384 /* Default just returns -ENODEV to indicate unsupported */
12385 dev_priv
->display
.queue_flip
= intel_default_queue_flip
;
12387 switch (INTEL_INFO(dev
)->gen
) {
12389 dev_priv
->display
.queue_flip
= intel_gen2_queue_flip
;
12393 dev_priv
->display
.queue_flip
= intel_gen3_queue_flip
;
12398 dev_priv
->display
.queue_flip
= intel_gen4_queue_flip
;
12402 dev_priv
->display
.queue_flip
= intel_gen6_queue_flip
;
12405 case 8: /* FIXME(BDW): Check that the gen8 RCS flip works. */
12406 dev_priv
->display
.queue_flip
= intel_gen7_queue_flip
;
12410 intel_panel_init_backlight_funcs(dev
);
12414 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
12415 * resume, or other times. This quirk makes sure that's the case for
12416 * affected systems.
12418 static void quirk_pipea_force(struct drm_device
*dev
)
12420 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12422 dev_priv
->quirks
|= QUIRK_PIPEA_FORCE
;
12423 DRM_INFO("applying pipe a force quirk\n");
12427 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
12429 static void quirk_ssc_force_disable(struct drm_device
*dev
)
12431 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12432 dev_priv
->quirks
|= QUIRK_LVDS_SSC_DISABLE
;
12433 DRM_INFO("applying lvds SSC disable quirk\n");
12437 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
12440 static void quirk_invert_brightness(struct drm_device
*dev
)
12442 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12443 dev_priv
->quirks
|= QUIRK_INVERT_BRIGHTNESS
;
12444 DRM_INFO("applying inverted panel brightness quirk\n");
12447 /* Some VBT's incorrectly indicate no backlight is present */
12448 static void quirk_backlight_present(struct drm_device
*dev
)
12450 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12451 dev_priv
->quirks
|= QUIRK_BACKLIGHT_PRESENT
;
12452 DRM_INFO("applying backlight present quirk\n");
12455 struct intel_quirk
{
12457 int subsystem_vendor
;
12458 int subsystem_device
;
12459 void (*hook
)(struct drm_device
*dev
);
12462 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
12463 struct intel_dmi_quirk
{
12464 void (*hook
)(struct drm_device
*dev
);
12465 const struct dmi_system_id (*dmi_id_list
)[];
12468 static int intel_dmi_reverse_brightness(const struct dmi_system_id
*id
)
12470 DRM_INFO("Backlight polarity reversed on %s\n", id
->ident
);
12474 static const struct intel_dmi_quirk intel_dmi_quirks
[] = {
12476 .dmi_id_list
= &(const struct dmi_system_id
[]) {
12478 .callback
= intel_dmi_reverse_brightness
,
12479 .ident
= "NCR Corporation",
12480 .matches
= {DMI_MATCH(DMI_SYS_VENDOR
, "NCR Corporation"),
12481 DMI_MATCH(DMI_PRODUCT_NAME
, ""),
12484 { } /* terminating entry */
12486 .hook
= quirk_invert_brightness
,
12490 static struct intel_quirk intel_quirks
[] = {
12491 /* HP Mini needs pipe A force quirk (LP: #322104) */
12492 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force
},
12494 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
12495 { 0x2592, 0x1179, 0x0001, quirk_pipea_force
},
12497 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
12498 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force
},
12500 /* Lenovo U160 cannot use SSC on LVDS */
12501 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable
},
12503 /* Sony Vaio Y cannot use SSC on LVDS */
12504 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable
},
12506 /* Acer Aspire 5734Z must invert backlight brightness */
12507 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness
},
12509 /* Acer/eMachines G725 */
12510 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness
},
12512 /* Acer/eMachines e725 */
12513 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness
},
12515 /* Acer/Packard Bell NCL20 */
12516 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness
},
12518 /* Acer Aspire 4736Z */
12519 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness
},
12521 /* Acer Aspire 5336 */
12522 { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness
},
12524 /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */
12525 { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present
},
12527 /* Toshiba CB35 Chromebook (Celeron 2955U) */
12528 { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present
},
12530 /* HP Chromebook 14 (Celeron 2955U) */
12531 { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present
},
12534 static void intel_init_quirks(struct drm_device
*dev
)
12536 struct pci_dev
*d
= dev
->pdev
;
12539 for (i
= 0; i
< ARRAY_SIZE(intel_quirks
); i
++) {
12540 struct intel_quirk
*q
= &intel_quirks
[i
];
12542 if (d
->device
== q
->device
&&
12543 (d
->subsystem_vendor
== q
->subsystem_vendor
||
12544 q
->subsystem_vendor
== PCI_ANY_ID
) &&
12545 (d
->subsystem_device
== q
->subsystem_device
||
12546 q
->subsystem_device
== PCI_ANY_ID
))
12549 for (i
= 0; i
< ARRAY_SIZE(intel_dmi_quirks
); i
++) {
12550 if (dmi_check_system(*intel_dmi_quirks
[i
].dmi_id_list
) != 0)
12551 intel_dmi_quirks
[i
].hook(dev
);
12555 /* Disable the VGA plane that we never use */
12556 static void i915_disable_vga(struct drm_device
*dev
)
12558 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12560 u32 vga_reg
= i915_vgacntrl_reg(dev
);
12562 /* WaEnableVGAAccessThroughIOPort:ctg,elk,ilk,snb,ivb,vlv,hsw */
12563 vga_get_uninterruptible(dev
->pdev
, VGA_RSRC_LEGACY_IO
);
12564 outb(SR01
, VGA_SR_INDEX
);
12565 sr1
= inb(VGA_SR_DATA
);
12566 outb(sr1
| 1<<5, VGA_SR_DATA
);
12567 vga_put(dev
->pdev
, VGA_RSRC_LEGACY_IO
);
12570 I915_WRITE(vga_reg
, VGA_DISP_DISABLE
);
12571 POSTING_READ(vga_reg
);
12574 void intel_modeset_init_hw(struct drm_device
*dev
)
12576 intel_prepare_ddi(dev
);
12578 if (IS_VALLEYVIEW(dev
))
12579 vlv_update_cdclk(dev
);
12581 intel_init_clock_gating(dev
);
12583 intel_enable_gt_powersave(dev
);
12586 void intel_modeset_suspend_hw(struct drm_device
*dev
)
12588 intel_suspend_hw(dev
);
12591 void intel_modeset_init(struct drm_device
*dev
)
12593 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12596 struct intel_crtc
*crtc
;
12598 drm_mode_config_init(dev
);
12600 dev
->mode_config
.min_width
= 0;
12601 dev
->mode_config
.min_height
= 0;
12603 dev
->mode_config
.preferred_depth
= 24;
12604 dev
->mode_config
.prefer_shadow
= 1;
12606 dev
->mode_config
.funcs
= &intel_mode_funcs
;
12608 intel_init_quirks(dev
);
12610 intel_init_pm(dev
);
12612 if (INTEL_INFO(dev
)->num_pipes
== 0)
12615 intel_init_display(dev
);
12617 if (IS_GEN2(dev
)) {
12618 dev
->mode_config
.max_width
= 2048;
12619 dev
->mode_config
.max_height
= 2048;
12620 } else if (IS_GEN3(dev
)) {
12621 dev
->mode_config
.max_width
= 4096;
12622 dev
->mode_config
.max_height
= 4096;
12624 dev
->mode_config
.max_width
= 8192;
12625 dev
->mode_config
.max_height
= 8192;
12628 if (IS_GEN2(dev
)) {
12629 dev
->mode_config
.cursor_width
= GEN2_CURSOR_WIDTH
;
12630 dev
->mode_config
.cursor_height
= GEN2_CURSOR_HEIGHT
;
12632 dev
->mode_config
.cursor_width
= MAX_CURSOR_WIDTH
;
12633 dev
->mode_config
.cursor_height
= MAX_CURSOR_HEIGHT
;
12636 dev
->mode_config
.fb_base
= dev_priv
->gtt
.mappable_base
;
12638 DRM_DEBUG_KMS("%d display pipe%s available.\n",
12639 INTEL_INFO(dev
)->num_pipes
,
12640 INTEL_INFO(dev
)->num_pipes
> 1 ? "s" : "");
12642 for_each_pipe(pipe
) {
12643 intel_crtc_init(dev
, pipe
);
12644 for_each_sprite(pipe
, sprite
) {
12645 ret
= intel_plane_init(dev
, pipe
, sprite
);
12647 DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n",
12648 pipe_name(pipe
), sprite_name(pipe
, sprite
), ret
);
12652 intel_init_dpio(dev
);
12654 intel_shared_dpll_init(dev
);
12656 /* Just disable it once at startup */
12657 i915_disable_vga(dev
);
12658 intel_setup_outputs(dev
);
12660 /* Just in case the BIOS is doing something questionable. */
12661 intel_disable_fbc(dev
);
12663 drm_modeset_lock_all(dev
);
12664 intel_modeset_setup_hw_state(dev
, false);
12665 drm_modeset_unlock_all(dev
);
12667 for_each_intel_crtc(dev
, crtc
) {
12672 * Note that reserving the BIOS fb up front prevents us
12673 * from stuffing other stolen allocations like the ring
12674 * on top. This prevents some ugliness at boot time, and
12675 * can even allow for smooth boot transitions if the BIOS
12676 * fb is large enough for the active pipe configuration.
12678 if (dev_priv
->display
.get_plane_config
) {
12679 dev_priv
->display
.get_plane_config(crtc
,
12680 &crtc
->plane_config
);
12682 * If the fb is shared between multiple heads, we'll
12683 * just get the first one.
12685 intel_find_plane_obj(crtc
, &crtc
->plane_config
);
12690 static void intel_enable_pipe_a(struct drm_device
*dev
)
12692 struct intel_connector
*connector
;
12693 struct drm_connector
*crt
= NULL
;
12694 struct intel_load_detect_pipe load_detect_temp
;
12695 struct drm_modeset_acquire_ctx ctx
;
12697 /* We can't just switch on the pipe A, we need to set things up with a
12698 * proper mode and output configuration. As a gross hack, enable pipe A
12699 * by enabling the load detect pipe once. */
12700 list_for_each_entry(connector
,
12701 &dev
->mode_config
.connector_list
,
12703 if (connector
->encoder
->type
== INTEL_OUTPUT_ANALOG
) {
12704 crt
= &connector
->base
;
12712 if (intel_get_load_detect_pipe(crt
, NULL
, &load_detect_temp
, &ctx
))
12713 intel_release_load_detect_pipe(crt
, &load_detect_temp
, &ctx
);
12719 intel_check_plane_mapping(struct intel_crtc
*crtc
)
12721 struct drm_device
*dev
= crtc
->base
.dev
;
12722 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12725 if (INTEL_INFO(dev
)->num_pipes
== 1)
12728 reg
= DSPCNTR(!crtc
->plane
);
12729 val
= I915_READ(reg
);
12731 if ((val
& DISPLAY_PLANE_ENABLE
) &&
12732 (!!(val
& DISPPLANE_SEL_PIPE_MASK
) == crtc
->pipe
))
12738 static void intel_sanitize_crtc(struct intel_crtc
*crtc
)
12740 struct drm_device
*dev
= crtc
->base
.dev
;
12741 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12744 /* Clear any frame start delays used for debugging left by the BIOS */
12745 reg
= PIPECONF(crtc
->config
.cpu_transcoder
);
12746 I915_WRITE(reg
, I915_READ(reg
) & ~PIPECONF_FRAME_START_DELAY_MASK
);
12748 /* restore vblank interrupts to correct state */
12750 drm_vblank_on(dev
, crtc
->pipe
);
12752 drm_vblank_off(dev
, crtc
->pipe
);
12754 /* We need to sanitize the plane -> pipe mapping first because this will
12755 * disable the crtc (and hence change the state) if it is wrong. Note
12756 * that gen4+ has a fixed plane -> pipe mapping. */
12757 if (INTEL_INFO(dev
)->gen
< 4 && !intel_check_plane_mapping(crtc
)) {
12758 struct intel_connector
*connector
;
12761 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
12762 crtc
->base
.base
.id
);
12764 /* Pipe has the wrong plane attached and the plane is active.
12765 * Temporarily change the plane mapping and disable everything
12767 plane
= crtc
->plane
;
12768 crtc
->plane
= !plane
;
12769 crtc
->primary_enabled
= true;
12770 dev_priv
->display
.crtc_disable(&crtc
->base
);
12771 crtc
->plane
= plane
;
12773 /* ... and break all links. */
12774 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
12776 if (connector
->encoder
->base
.crtc
!= &crtc
->base
)
12779 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
12780 connector
->base
.encoder
= NULL
;
12782 /* multiple connectors may have the same encoder:
12783 * handle them and break crtc link separately */
12784 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
12786 if (connector
->encoder
->base
.crtc
== &crtc
->base
) {
12787 connector
->encoder
->base
.crtc
= NULL
;
12788 connector
->encoder
->connectors_active
= false;
12791 WARN_ON(crtc
->active
);
12792 crtc
->base
.enabled
= false;
12795 if (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
&&
12796 crtc
->pipe
== PIPE_A
&& !crtc
->active
) {
12797 /* BIOS forgot to enable pipe A, this mostly happens after
12798 * resume. Force-enable the pipe to fix this, the update_dpms
12799 * call below we restore the pipe to the right state, but leave
12800 * the required bits on. */
12801 intel_enable_pipe_a(dev
);
12804 /* Adjust the state of the output pipe according to whether we
12805 * have active connectors/encoders. */
12806 intel_crtc_update_dpms(&crtc
->base
);
12808 if (crtc
->active
!= crtc
->base
.enabled
) {
12809 struct intel_encoder
*encoder
;
12811 /* This can happen either due to bugs in the get_hw_state
12812 * functions or because the pipe is force-enabled due to the
12814 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
12815 crtc
->base
.base
.id
,
12816 crtc
->base
.enabled
? "enabled" : "disabled",
12817 crtc
->active
? "enabled" : "disabled");
12819 crtc
->base
.enabled
= crtc
->active
;
12821 /* Because we only establish the connector -> encoder ->
12822 * crtc links if something is active, this means the
12823 * crtc is now deactivated. Break the links. connector
12824 * -> encoder links are only establish when things are
12825 * actually up, hence no need to break them. */
12826 WARN_ON(crtc
->active
);
12828 for_each_encoder_on_crtc(dev
, &crtc
->base
, encoder
) {
12829 WARN_ON(encoder
->connectors_active
);
12830 encoder
->base
.crtc
= NULL
;
12834 if (crtc
->active
|| IS_VALLEYVIEW(dev
) || INTEL_INFO(dev
)->gen
< 5) {
12836 * We start out with underrun reporting disabled to avoid races.
12837 * For correct bookkeeping mark this on active crtcs.
12839 * Also on gmch platforms we dont have any hardware bits to
12840 * disable the underrun reporting. Which means we need to start
12841 * out with underrun reporting disabled also on inactive pipes,
12842 * since otherwise we'll complain about the garbage we read when
12843 * e.g. coming up after runtime pm.
12845 * No protection against concurrent access is required - at
12846 * worst a fifo underrun happens which also sets this to false.
12848 crtc
->cpu_fifo_underrun_disabled
= true;
12849 crtc
->pch_fifo_underrun_disabled
= true;
12851 update_scanline_offset(crtc
);
12855 static void intel_sanitize_encoder(struct intel_encoder
*encoder
)
12857 struct intel_connector
*connector
;
12858 struct drm_device
*dev
= encoder
->base
.dev
;
12860 /* We need to check both for a crtc link (meaning that the
12861 * encoder is active and trying to read from a pipe) and the
12862 * pipe itself being active. */
12863 bool has_active_crtc
= encoder
->base
.crtc
&&
12864 to_intel_crtc(encoder
->base
.crtc
)->active
;
12866 if (encoder
->connectors_active
&& !has_active_crtc
) {
12867 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
12868 encoder
->base
.base
.id
,
12869 encoder
->base
.name
);
12871 /* Connector is active, but has no active pipe. This is
12872 * fallout from our resume register restoring. Disable
12873 * the encoder manually again. */
12874 if (encoder
->base
.crtc
) {
12875 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
12876 encoder
->base
.base
.id
,
12877 encoder
->base
.name
);
12878 encoder
->disable(encoder
);
12879 if (encoder
->post_disable
)
12880 encoder
->post_disable(encoder
);
12882 encoder
->base
.crtc
= NULL
;
12883 encoder
->connectors_active
= false;
12885 /* Inconsistent output/port/pipe state happens presumably due to
12886 * a bug in one of the get_hw_state functions. Or someplace else
12887 * in our code, like the register restore mess on resume. Clamp
12888 * things to off as a safer default. */
12889 list_for_each_entry(connector
,
12890 &dev
->mode_config
.connector_list
,
12892 if (connector
->encoder
!= encoder
)
12894 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
12895 connector
->base
.encoder
= NULL
;
12898 /* Enabled encoders without active connectors will be fixed in
12899 * the crtc fixup. */
12902 void i915_redisable_vga_power_on(struct drm_device
*dev
)
12904 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12905 u32 vga_reg
= i915_vgacntrl_reg(dev
);
12907 if (!(I915_READ(vga_reg
) & VGA_DISP_DISABLE
)) {
12908 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
12909 i915_disable_vga(dev
);
12913 void i915_redisable_vga(struct drm_device
*dev
)
12915 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12917 /* This function can be called both from intel_modeset_setup_hw_state or
12918 * at a very early point in our resume sequence, where the power well
12919 * structures are not yet restored. Since this function is at a very
12920 * paranoid "someone might have enabled VGA while we were not looking"
12921 * level, just check if the power well is enabled instead of trying to
12922 * follow the "don't touch the power well if we don't need it" policy
12923 * the rest of the driver uses. */
12924 if (!intel_display_power_enabled(dev_priv
, POWER_DOMAIN_VGA
))
12927 i915_redisable_vga_power_on(dev
);
12930 static bool primary_get_hw_state(struct intel_crtc
*crtc
)
12932 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
12937 return I915_READ(DSPCNTR(crtc
->plane
)) & DISPLAY_PLANE_ENABLE
;
12940 static void intel_modeset_readout_hw_state(struct drm_device
*dev
)
12942 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12944 struct intel_crtc
*crtc
;
12945 struct intel_encoder
*encoder
;
12946 struct intel_connector
*connector
;
12949 for_each_intel_crtc(dev
, crtc
) {
12950 memset(&crtc
->config
, 0, sizeof(crtc
->config
));
12952 crtc
->config
.quirks
|= PIPE_CONFIG_QUIRK_INHERITED_MODE
;
12954 crtc
->active
= dev_priv
->display
.get_pipe_config(crtc
,
12957 crtc
->base
.enabled
= crtc
->active
;
12958 crtc
->primary_enabled
= primary_get_hw_state(crtc
);
12960 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
12961 crtc
->base
.base
.id
,
12962 crtc
->active
? "enabled" : "disabled");
12965 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
12966 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
12968 pll
->on
= pll
->get_hw_state(dev_priv
, pll
, &pll
->hw_state
);
12970 for_each_intel_crtc(dev
, crtc
) {
12971 if (crtc
->active
&& intel_crtc_to_shared_dpll(crtc
) == pll
)
12974 pll
->refcount
= pll
->active
;
12976 DRM_DEBUG_KMS("%s hw state readout: refcount %i, on %i\n",
12977 pll
->name
, pll
->refcount
, pll
->on
);
12980 intel_display_power_get(dev_priv
, POWER_DOMAIN_PLLS
);
12983 for_each_intel_encoder(dev
, encoder
) {
12986 if (encoder
->get_hw_state(encoder
, &pipe
)) {
12987 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
12988 encoder
->base
.crtc
= &crtc
->base
;
12989 encoder
->get_config(encoder
, &crtc
->config
);
12991 encoder
->base
.crtc
= NULL
;
12994 encoder
->connectors_active
= false;
12995 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n",
12996 encoder
->base
.base
.id
,
12997 encoder
->base
.name
,
12998 encoder
->base
.crtc
? "enabled" : "disabled",
13002 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
13004 if (connector
->get_hw_state(connector
)) {
13005 connector
->base
.dpms
= DRM_MODE_DPMS_ON
;
13006 connector
->encoder
->connectors_active
= true;
13007 connector
->base
.encoder
= &connector
->encoder
->base
;
13009 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
13010 connector
->base
.encoder
= NULL
;
13012 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
13013 connector
->base
.base
.id
,
13014 connector
->base
.name
,
13015 connector
->base
.encoder
? "enabled" : "disabled");
13019 /* Scan out the current hw modeset state, sanitizes it and maps it into the drm
13020 * and i915 state tracking structures. */
13021 void intel_modeset_setup_hw_state(struct drm_device
*dev
,
13022 bool force_restore
)
13024 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13026 struct intel_crtc
*crtc
;
13027 struct intel_encoder
*encoder
;
13030 intel_modeset_readout_hw_state(dev
);
13033 * Now that we have the config, copy it to each CRTC struct
13034 * Note that this could go away if we move to using crtc_config
13035 * checking everywhere.
13037 for_each_intel_crtc(dev
, crtc
) {
13038 if (crtc
->active
&& i915
.fastboot
) {
13039 intel_mode_from_pipe_config(&crtc
->base
.mode
, &crtc
->config
);
13040 DRM_DEBUG_KMS("[CRTC:%d] found active mode: ",
13041 crtc
->base
.base
.id
);
13042 drm_mode_debug_printmodeline(&crtc
->base
.mode
);
13046 /* HW state is read out, now we need to sanitize this mess. */
13047 for_each_intel_encoder(dev
, encoder
) {
13048 intel_sanitize_encoder(encoder
);
13051 for_each_pipe(pipe
) {
13052 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
13053 intel_sanitize_crtc(crtc
);
13054 intel_dump_pipe_config(crtc
, &crtc
->config
, "[setup_hw_state]");
13057 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
13058 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
13060 if (!pll
->on
|| pll
->active
)
13063 DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll
->name
);
13065 pll
->disable(dev_priv
, pll
);
13069 if (HAS_PCH_SPLIT(dev
))
13070 ilk_wm_get_hw_state(dev
);
13072 if (force_restore
) {
13073 i915_redisable_vga(dev
);
13076 * We need to use raw interfaces for restoring state to avoid
13077 * checking (bogus) intermediate states.
13079 for_each_pipe(pipe
) {
13080 struct drm_crtc
*crtc
=
13081 dev_priv
->pipe_to_crtc_mapping
[pipe
];
13083 __intel_set_mode(crtc
, &crtc
->mode
, crtc
->x
, crtc
->y
,
13084 crtc
->primary
->fb
);
13087 intel_modeset_update_staged_output_state(dev
);
13090 intel_modeset_check_state(dev
);
13093 void intel_modeset_gem_init(struct drm_device
*dev
)
13095 struct drm_crtc
*c
;
13096 struct drm_i915_gem_object
*obj
;
13098 mutex_lock(&dev
->struct_mutex
);
13099 intel_init_gt_powersave(dev
);
13100 mutex_unlock(&dev
->struct_mutex
);
13102 intel_modeset_init_hw(dev
);
13104 intel_setup_overlay(dev
);
13107 * Make sure any fbs we allocated at startup are properly
13108 * pinned & fenced. When we do the allocation it's too early
13111 mutex_lock(&dev
->struct_mutex
);
13112 for_each_crtc(dev
, c
) {
13113 obj
= intel_fb_obj(c
->primary
->fb
);
13117 if (intel_pin_and_fence_fb_obj(dev
, obj
, NULL
)) {
13118 DRM_ERROR("failed to pin boot fb on pipe %d\n",
13119 to_intel_crtc(c
)->pipe
);
13120 drm_framebuffer_unreference(c
->primary
->fb
);
13121 c
->primary
->fb
= NULL
;
13124 mutex_unlock(&dev
->struct_mutex
);
13127 void intel_connector_unregister(struct intel_connector
*intel_connector
)
13129 struct drm_connector
*connector
= &intel_connector
->base
;
13131 intel_panel_destroy_backlight(connector
);
13132 drm_connector_unregister(connector
);
13135 void intel_modeset_cleanup(struct drm_device
*dev
)
13137 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13138 struct drm_connector
*connector
;
13141 * Interrupts and polling as the first thing to avoid creating havoc.
13142 * Too much stuff here (turning of rps, connectors, ...) would
13143 * experience fancy races otherwise.
13145 drm_irq_uninstall(dev
);
13146 cancel_work_sync(&dev_priv
->hotplug_work
);
13147 dev_priv
->pm
._irqs_disabled
= true;
13150 * Due to the hpd irq storm handling the hotplug work can re-arm the
13151 * poll handlers. Hence disable polling after hpd handling is shut down.
13153 drm_kms_helper_poll_fini(dev
);
13155 mutex_lock(&dev
->struct_mutex
);
13157 intel_unregister_dsm_handler();
13159 intel_disable_fbc(dev
);
13161 intel_disable_gt_powersave(dev
);
13163 ironlake_teardown_rc6(dev
);
13165 mutex_unlock(&dev
->struct_mutex
);
13167 /* flush any delayed tasks or pending work */
13168 flush_scheduled_work();
13170 /* destroy the backlight and sysfs files before encoders/connectors */
13171 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
13172 struct intel_connector
*intel_connector
;
13174 intel_connector
= to_intel_connector(connector
);
13175 intel_connector
->unregister(intel_connector
);
13178 drm_mode_config_cleanup(dev
);
13180 intel_cleanup_overlay(dev
);
13182 mutex_lock(&dev
->struct_mutex
);
13183 intel_cleanup_gt_powersave(dev
);
13184 mutex_unlock(&dev
->struct_mutex
);
13188 * Return which encoder is currently attached for connector.
13190 struct drm_encoder
*intel_best_encoder(struct drm_connector
*connector
)
13192 return &intel_attached_encoder(connector
)->base
;
13195 void intel_connector_attach_encoder(struct intel_connector
*connector
,
13196 struct intel_encoder
*encoder
)
13198 connector
->encoder
= encoder
;
13199 drm_mode_connector_attach_encoder(&connector
->base
,
13204 * set vga decode state - true == enable VGA decode
13206 int intel_modeset_vga_set_state(struct drm_device
*dev
, bool state
)
13208 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13209 unsigned reg
= INTEL_INFO(dev
)->gen
>= 6 ? SNB_GMCH_CTRL
: INTEL_GMCH_CTRL
;
13212 if (pci_read_config_word(dev_priv
->bridge_dev
, reg
, &gmch_ctrl
)) {
13213 DRM_ERROR("failed to read control word\n");
13217 if (!!(gmch_ctrl
& INTEL_GMCH_VGA_DISABLE
) == !state
)
13221 gmch_ctrl
&= ~INTEL_GMCH_VGA_DISABLE
;
13223 gmch_ctrl
|= INTEL_GMCH_VGA_DISABLE
;
13225 if (pci_write_config_word(dev_priv
->bridge_dev
, reg
, gmch_ctrl
)) {
13226 DRM_ERROR("failed to write control word\n");
13233 struct intel_display_error_state
{
13235 u32 power_well_driver
;
13237 int num_transcoders
;
13239 struct intel_cursor_error_state
{
13244 } cursor
[I915_MAX_PIPES
];
13246 struct intel_pipe_error_state
{
13247 bool power_domain_on
;
13250 } pipe
[I915_MAX_PIPES
];
13252 struct intel_plane_error_state
{
13260 } plane
[I915_MAX_PIPES
];
13262 struct intel_transcoder_error_state
{
13263 bool power_domain_on
;
13264 enum transcoder cpu_transcoder
;
13277 struct intel_display_error_state
*
13278 intel_display_capture_error_state(struct drm_device
*dev
)
13280 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13281 struct intel_display_error_state
*error
;
13282 int transcoders
[] = {
13290 if (INTEL_INFO(dev
)->num_pipes
== 0)
13293 error
= kzalloc(sizeof(*error
), GFP_ATOMIC
);
13297 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
13298 error
->power_well_driver
= I915_READ(HSW_PWR_WELL_DRIVER
);
13301 error
->pipe
[i
].power_domain_on
=
13302 intel_display_power_enabled_unlocked(dev_priv
,
13303 POWER_DOMAIN_PIPE(i
));
13304 if (!error
->pipe
[i
].power_domain_on
)
13307 error
->cursor
[i
].control
= I915_READ(CURCNTR(i
));
13308 error
->cursor
[i
].position
= I915_READ(CURPOS(i
));
13309 error
->cursor
[i
].base
= I915_READ(CURBASE(i
));
13311 error
->plane
[i
].control
= I915_READ(DSPCNTR(i
));
13312 error
->plane
[i
].stride
= I915_READ(DSPSTRIDE(i
));
13313 if (INTEL_INFO(dev
)->gen
<= 3) {
13314 error
->plane
[i
].size
= I915_READ(DSPSIZE(i
));
13315 error
->plane
[i
].pos
= I915_READ(DSPPOS(i
));
13317 if (INTEL_INFO(dev
)->gen
<= 7 && !IS_HASWELL(dev
))
13318 error
->plane
[i
].addr
= I915_READ(DSPADDR(i
));
13319 if (INTEL_INFO(dev
)->gen
>= 4) {
13320 error
->plane
[i
].surface
= I915_READ(DSPSURF(i
));
13321 error
->plane
[i
].tile_offset
= I915_READ(DSPTILEOFF(i
));
13324 error
->pipe
[i
].source
= I915_READ(PIPESRC(i
));
13326 if (HAS_GMCH_DISPLAY(dev
))
13327 error
->pipe
[i
].stat
= I915_READ(PIPESTAT(i
));
13330 error
->num_transcoders
= INTEL_INFO(dev
)->num_pipes
;
13331 if (HAS_DDI(dev_priv
->dev
))
13332 error
->num_transcoders
++; /* Account for eDP. */
13334 for (i
= 0; i
< error
->num_transcoders
; i
++) {
13335 enum transcoder cpu_transcoder
= transcoders
[i
];
13337 error
->transcoder
[i
].power_domain_on
=
13338 intel_display_power_enabled_unlocked(dev_priv
,
13339 POWER_DOMAIN_TRANSCODER(cpu_transcoder
));
13340 if (!error
->transcoder
[i
].power_domain_on
)
13343 error
->transcoder
[i
].cpu_transcoder
= cpu_transcoder
;
13345 error
->transcoder
[i
].conf
= I915_READ(PIPECONF(cpu_transcoder
));
13346 error
->transcoder
[i
].htotal
= I915_READ(HTOTAL(cpu_transcoder
));
13347 error
->transcoder
[i
].hblank
= I915_READ(HBLANK(cpu_transcoder
));
13348 error
->transcoder
[i
].hsync
= I915_READ(HSYNC(cpu_transcoder
));
13349 error
->transcoder
[i
].vtotal
= I915_READ(VTOTAL(cpu_transcoder
));
13350 error
->transcoder
[i
].vblank
= I915_READ(VBLANK(cpu_transcoder
));
13351 error
->transcoder
[i
].vsync
= I915_READ(VSYNC(cpu_transcoder
));
13357 #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
13360 intel_display_print_error_state(struct drm_i915_error_state_buf
*m
,
13361 struct drm_device
*dev
,
13362 struct intel_display_error_state
*error
)
13369 err_printf(m
, "Num Pipes: %d\n", INTEL_INFO(dev
)->num_pipes
);
13370 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
13371 err_printf(m
, "PWR_WELL_CTL2: %08x\n",
13372 error
->power_well_driver
);
13374 err_printf(m
, "Pipe [%d]:\n", i
);
13375 err_printf(m
, " Power: %s\n",
13376 error
->pipe
[i
].power_domain_on
? "on" : "off");
13377 err_printf(m
, " SRC: %08x\n", error
->pipe
[i
].source
);
13378 err_printf(m
, " STAT: %08x\n", error
->pipe
[i
].stat
);
13380 err_printf(m
, "Plane [%d]:\n", i
);
13381 err_printf(m
, " CNTR: %08x\n", error
->plane
[i
].control
);
13382 err_printf(m
, " STRIDE: %08x\n", error
->plane
[i
].stride
);
13383 if (INTEL_INFO(dev
)->gen
<= 3) {
13384 err_printf(m
, " SIZE: %08x\n", error
->plane
[i
].size
);
13385 err_printf(m
, " POS: %08x\n", error
->plane
[i
].pos
);
13387 if (INTEL_INFO(dev
)->gen
<= 7 && !IS_HASWELL(dev
))
13388 err_printf(m
, " ADDR: %08x\n", error
->plane
[i
].addr
);
13389 if (INTEL_INFO(dev
)->gen
>= 4) {
13390 err_printf(m
, " SURF: %08x\n", error
->plane
[i
].surface
);
13391 err_printf(m
, " TILEOFF: %08x\n", error
->plane
[i
].tile_offset
);
13394 err_printf(m
, "Cursor [%d]:\n", i
);
13395 err_printf(m
, " CNTR: %08x\n", error
->cursor
[i
].control
);
13396 err_printf(m
, " POS: %08x\n", error
->cursor
[i
].position
);
13397 err_printf(m
, " BASE: %08x\n", error
->cursor
[i
].base
);
13400 for (i
= 0; i
< error
->num_transcoders
; i
++) {
13401 err_printf(m
, "CPU transcoder: %c\n",
13402 transcoder_name(error
->transcoder
[i
].cpu_transcoder
));
13403 err_printf(m
, " Power: %s\n",
13404 error
->transcoder
[i
].power_domain_on
? "on" : "off");
13405 err_printf(m
, " CONF: %08x\n", error
->transcoder
[i
].conf
);
13406 err_printf(m
, " HTOTAL: %08x\n", error
->transcoder
[i
].htotal
);
13407 err_printf(m
, " HBLANK: %08x\n", error
->transcoder
[i
].hblank
);
13408 err_printf(m
, " HSYNC: %08x\n", error
->transcoder
[i
].hsync
);
13409 err_printf(m
, " VTOTAL: %08x\n", error
->transcoder
[i
].vtotal
);
13410 err_printf(m
, " VBLANK: %08x\n", error
->transcoder
[i
].vblank
);
13411 err_printf(m
, " VSYNC: %08x\n", error
->transcoder
[i
].vsync
);
13415 void intel_modeset_preclose(struct drm_device
*dev
, struct drm_file
*file
)
13417 struct intel_crtc
*crtc
;
13419 for_each_intel_crtc(dev
, crtc
) {
13420 struct intel_unpin_work
*work
;
13421 unsigned long irqflags
;
13423 spin_lock_irqsave(&dev
->event_lock
, irqflags
);
13425 work
= crtc
->unpin_work
;
13427 if (work
&& work
->event
&&
13428 work
->event
->base
.file_priv
== file
) {
13429 kfree(work
->event
);
13430 work
->event
= NULL
;
13433 spin_unlock_irqrestore(&dev
->event_lock
, irqflags
);