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 "intel_frontbuffer.h"
38 #include <drm/i915_drm.h>
40 #include "intel_dsi.h"
41 #include "i915_trace.h"
42 #include <drm/drm_atomic.h>
43 #include <drm/drm_atomic_helper.h>
44 #include <drm/drm_dp_helper.h>
45 #include <drm/drm_crtc_helper.h>
46 #include <drm/drm_plane_helper.h>
47 #include <drm/drm_rect.h>
48 #include <linux/dma_remapping.h>
49 #include <linux/reservation.h>
51 static bool is_mmio_work(struct intel_flip_work
*work
)
53 return work
->mmio_work
.func
;
56 /* Primary plane formats for gen <= 3 */
57 static const uint32_t i8xx_primary_formats
[] = {
64 /* Primary plane formats for gen >= 4 */
65 static const uint32_t i965_primary_formats
[] = {
70 DRM_FORMAT_XRGB2101010
,
71 DRM_FORMAT_XBGR2101010
,
74 static const uint32_t skl_primary_formats
[] = {
81 DRM_FORMAT_XRGB2101010
,
82 DRM_FORMAT_XBGR2101010
,
90 static const uint32_t intel_cursor_formats
[] = {
94 static void i9xx_crtc_clock_get(struct intel_crtc
*crtc
,
95 struct intel_crtc_state
*pipe_config
);
96 static void ironlake_pch_clock_get(struct intel_crtc
*crtc
,
97 struct intel_crtc_state
*pipe_config
);
99 static int intel_framebuffer_init(struct drm_device
*dev
,
100 struct intel_framebuffer
*ifb
,
101 struct drm_mode_fb_cmd2
*mode_cmd
,
102 struct drm_i915_gem_object
*obj
);
103 static void i9xx_set_pipeconf(struct intel_crtc
*intel_crtc
);
104 static void intel_set_pipe_timings(struct intel_crtc
*intel_crtc
);
105 static void intel_set_pipe_src_size(struct intel_crtc
*intel_crtc
);
106 static void intel_cpu_transcoder_set_m_n(struct intel_crtc
*crtc
,
107 struct intel_link_m_n
*m_n
,
108 struct intel_link_m_n
*m2_n2
);
109 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
);
110 static void haswell_set_pipeconf(struct drm_crtc
*crtc
);
111 static void haswell_set_pipemisc(struct drm_crtc
*crtc
);
112 static void vlv_prepare_pll(struct intel_crtc
*crtc
,
113 const struct intel_crtc_state
*pipe_config
);
114 static void chv_prepare_pll(struct intel_crtc
*crtc
,
115 const struct intel_crtc_state
*pipe_config
);
116 static void intel_begin_crtc_commit(struct drm_crtc
*, struct drm_crtc_state
*);
117 static void intel_finish_crtc_commit(struct drm_crtc
*, struct drm_crtc_state
*);
118 static void skl_init_scalers(struct drm_i915_private
*dev_priv
,
119 struct intel_crtc
*crtc
,
120 struct intel_crtc_state
*crtc_state
);
121 static void skylake_pfit_enable(struct intel_crtc
*crtc
);
122 static void ironlake_pfit_disable(struct intel_crtc
*crtc
, bool force
);
123 static void ironlake_pfit_enable(struct intel_crtc
*crtc
);
124 static void intel_modeset_setup_hw_state(struct drm_device
*dev
);
125 static void intel_pre_disable_primary_noatomic(struct drm_crtc
*crtc
);
126 static int ilk_max_pixel_rate(struct drm_atomic_state
*state
);
127 static int bxt_calc_cdclk(int max_pixclk
);
132 } dot
, vco
, n
, m
, m1
, m2
, p
, p1
;
136 int p2_slow
, p2_fast
;
140 /* returns HPLL frequency in kHz */
141 static int valleyview_get_vco(struct drm_i915_private
*dev_priv
)
143 int hpll_freq
, vco_freq
[] = { 800, 1600, 2000, 2400 };
145 /* Obtain SKU information */
146 mutex_lock(&dev_priv
->sb_lock
);
147 hpll_freq
= vlv_cck_read(dev_priv
, CCK_FUSE_REG
) &
148 CCK_FUSE_HPLL_FREQ_MASK
;
149 mutex_unlock(&dev_priv
->sb_lock
);
151 return vco_freq
[hpll_freq
] * 1000;
154 int vlv_get_cck_clock(struct drm_i915_private
*dev_priv
,
155 const char *name
, u32 reg
, int ref_freq
)
160 mutex_lock(&dev_priv
->sb_lock
);
161 val
= vlv_cck_read(dev_priv
, reg
);
162 mutex_unlock(&dev_priv
->sb_lock
);
164 divider
= val
& CCK_FREQUENCY_VALUES
;
166 WARN((val
& CCK_FREQUENCY_STATUS
) !=
167 (divider
<< CCK_FREQUENCY_STATUS_SHIFT
),
168 "%s change in progress\n", name
);
170 return DIV_ROUND_CLOSEST(ref_freq
<< 1, divider
+ 1);
173 static int vlv_get_cck_clock_hpll(struct drm_i915_private
*dev_priv
,
174 const char *name
, u32 reg
)
176 if (dev_priv
->hpll_freq
== 0)
177 dev_priv
->hpll_freq
= valleyview_get_vco(dev_priv
);
179 return vlv_get_cck_clock(dev_priv
, name
, reg
,
180 dev_priv
->hpll_freq
);
184 intel_pch_rawclk(struct drm_i915_private
*dev_priv
)
186 return (I915_READ(PCH_RAWCLK_FREQ
) & RAWCLK_FREQ_MASK
) * 1000;
190 intel_vlv_hrawclk(struct drm_i915_private
*dev_priv
)
192 /* RAWCLK_FREQ_VLV register updated from power well code */
193 return vlv_get_cck_clock_hpll(dev_priv
, "hrawclk",
194 CCK_DISPLAY_REF_CLOCK_CONTROL
);
198 intel_g4x_hrawclk(struct drm_i915_private
*dev_priv
)
202 /* hrawclock is 1/4 the FSB frequency */
203 clkcfg
= I915_READ(CLKCFG
);
204 switch (clkcfg
& CLKCFG_FSB_MASK
) {
213 case CLKCFG_FSB_1067
:
215 case CLKCFG_FSB_1333
:
217 /* these two are just a guess; one of them might be right */
218 case CLKCFG_FSB_1600
:
219 case CLKCFG_FSB_1600_ALT
:
226 void intel_update_rawclk(struct drm_i915_private
*dev_priv
)
228 if (HAS_PCH_SPLIT(dev_priv
))
229 dev_priv
->rawclk_freq
= intel_pch_rawclk(dev_priv
);
230 else if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
231 dev_priv
->rawclk_freq
= intel_vlv_hrawclk(dev_priv
);
232 else if (IS_G4X(dev_priv
) || IS_PINEVIEW(dev_priv
))
233 dev_priv
->rawclk_freq
= intel_g4x_hrawclk(dev_priv
);
235 return; /* no rawclk on other platforms, or no need to know it */
237 DRM_DEBUG_DRIVER("rawclk rate: %d kHz\n", dev_priv
->rawclk_freq
);
240 static void intel_update_czclk(struct drm_i915_private
*dev_priv
)
242 if (!(IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)))
245 dev_priv
->czclk_freq
= vlv_get_cck_clock_hpll(dev_priv
, "czclk",
246 CCK_CZ_CLOCK_CONTROL
);
248 DRM_DEBUG_DRIVER("CZ clock rate: %d kHz\n", dev_priv
->czclk_freq
);
251 static inline u32
/* units of 100MHz */
252 intel_fdi_link_freq(struct drm_i915_private
*dev_priv
,
253 const struct intel_crtc_state
*pipe_config
)
255 if (HAS_DDI(dev_priv
))
256 return pipe_config
->port_clock
; /* SPLL */
257 else if (IS_GEN5(dev_priv
))
258 return ((I915_READ(FDI_PLL_BIOS_0
) & FDI_PLL_FB_CLOCK_MASK
) + 2) * 10000;
263 static const struct intel_limit intel_limits_i8xx_dac
= {
264 .dot
= { .min
= 25000, .max
= 350000 },
265 .vco
= { .min
= 908000, .max
= 1512000 },
266 .n
= { .min
= 2, .max
= 16 },
267 .m
= { .min
= 96, .max
= 140 },
268 .m1
= { .min
= 18, .max
= 26 },
269 .m2
= { .min
= 6, .max
= 16 },
270 .p
= { .min
= 4, .max
= 128 },
271 .p1
= { .min
= 2, .max
= 33 },
272 .p2
= { .dot_limit
= 165000,
273 .p2_slow
= 4, .p2_fast
= 2 },
276 static const struct intel_limit intel_limits_i8xx_dvo
= {
277 .dot
= { .min
= 25000, .max
= 350000 },
278 .vco
= { .min
= 908000, .max
= 1512000 },
279 .n
= { .min
= 2, .max
= 16 },
280 .m
= { .min
= 96, .max
= 140 },
281 .m1
= { .min
= 18, .max
= 26 },
282 .m2
= { .min
= 6, .max
= 16 },
283 .p
= { .min
= 4, .max
= 128 },
284 .p1
= { .min
= 2, .max
= 33 },
285 .p2
= { .dot_limit
= 165000,
286 .p2_slow
= 4, .p2_fast
= 4 },
289 static const struct intel_limit intel_limits_i8xx_lvds
= {
290 .dot
= { .min
= 25000, .max
= 350000 },
291 .vco
= { .min
= 908000, .max
= 1512000 },
292 .n
= { .min
= 2, .max
= 16 },
293 .m
= { .min
= 96, .max
= 140 },
294 .m1
= { .min
= 18, .max
= 26 },
295 .m2
= { .min
= 6, .max
= 16 },
296 .p
= { .min
= 4, .max
= 128 },
297 .p1
= { .min
= 1, .max
= 6 },
298 .p2
= { .dot_limit
= 165000,
299 .p2_slow
= 14, .p2_fast
= 7 },
302 static const struct intel_limit intel_limits_i9xx_sdvo
= {
303 .dot
= { .min
= 20000, .max
= 400000 },
304 .vco
= { .min
= 1400000, .max
= 2800000 },
305 .n
= { .min
= 1, .max
= 6 },
306 .m
= { .min
= 70, .max
= 120 },
307 .m1
= { .min
= 8, .max
= 18 },
308 .m2
= { .min
= 3, .max
= 7 },
309 .p
= { .min
= 5, .max
= 80 },
310 .p1
= { .min
= 1, .max
= 8 },
311 .p2
= { .dot_limit
= 200000,
312 .p2_slow
= 10, .p2_fast
= 5 },
315 static const struct intel_limit intel_limits_i9xx_lvds
= {
316 .dot
= { .min
= 20000, .max
= 400000 },
317 .vco
= { .min
= 1400000, .max
= 2800000 },
318 .n
= { .min
= 1, .max
= 6 },
319 .m
= { .min
= 70, .max
= 120 },
320 .m1
= { .min
= 8, .max
= 18 },
321 .m2
= { .min
= 3, .max
= 7 },
322 .p
= { .min
= 7, .max
= 98 },
323 .p1
= { .min
= 1, .max
= 8 },
324 .p2
= { .dot_limit
= 112000,
325 .p2_slow
= 14, .p2_fast
= 7 },
329 static const struct intel_limit intel_limits_g4x_sdvo
= {
330 .dot
= { .min
= 25000, .max
= 270000 },
331 .vco
= { .min
= 1750000, .max
= 3500000},
332 .n
= { .min
= 1, .max
= 4 },
333 .m
= { .min
= 104, .max
= 138 },
334 .m1
= { .min
= 17, .max
= 23 },
335 .m2
= { .min
= 5, .max
= 11 },
336 .p
= { .min
= 10, .max
= 30 },
337 .p1
= { .min
= 1, .max
= 3},
338 .p2
= { .dot_limit
= 270000,
344 static const struct intel_limit intel_limits_g4x_hdmi
= {
345 .dot
= { .min
= 22000, .max
= 400000 },
346 .vco
= { .min
= 1750000, .max
= 3500000},
347 .n
= { .min
= 1, .max
= 4 },
348 .m
= { .min
= 104, .max
= 138 },
349 .m1
= { .min
= 16, .max
= 23 },
350 .m2
= { .min
= 5, .max
= 11 },
351 .p
= { .min
= 5, .max
= 80 },
352 .p1
= { .min
= 1, .max
= 8},
353 .p2
= { .dot_limit
= 165000,
354 .p2_slow
= 10, .p2_fast
= 5 },
357 static const struct intel_limit intel_limits_g4x_single_channel_lvds
= {
358 .dot
= { .min
= 20000, .max
= 115000 },
359 .vco
= { .min
= 1750000, .max
= 3500000 },
360 .n
= { .min
= 1, .max
= 3 },
361 .m
= { .min
= 104, .max
= 138 },
362 .m1
= { .min
= 17, .max
= 23 },
363 .m2
= { .min
= 5, .max
= 11 },
364 .p
= { .min
= 28, .max
= 112 },
365 .p1
= { .min
= 2, .max
= 8 },
366 .p2
= { .dot_limit
= 0,
367 .p2_slow
= 14, .p2_fast
= 14
371 static const struct intel_limit intel_limits_g4x_dual_channel_lvds
= {
372 .dot
= { .min
= 80000, .max
= 224000 },
373 .vco
= { .min
= 1750000, .max
= 3500000 },
374 .n
= { .min
= 1, .max
= 3 },
375 .m
= { .min
= 104, .max
= 138 },
376 .m1
= { .min
= 17, .max
= 23 },
377 .m2
= { .min
= 5, .max
= 11 },
378 .p
= { .min
= 14, .max
= 42 },
379 .p1
= { .min
= 2, .max
= 6 },
380 .p2
= { .dot_limit
= 0,
381 .p2_slow
= 7, .p2_fast
= 7
385 static const struct intel_limit intel_limits_pineview_sdvo
= {
386 .dot
= { .min
= 20000, .max
= 400000},
387 .vco
= { .min
= 1700000, .max
= 3500000 },
388 /* Pineview's Ncounter is a ring counter */
389 .n
= { .min
= 3, .max
= 6 },
390 .m
= { .min
= 2, .max
= 256 },
391 /* Pineview only has one combined m divider, which we treat as m2. */
392 .m1
= { .min
= 0, .max
= 0 },
393 .m2
= { .min
= 0, .max
= 254 },
394 .p
= { .min
= 5, .max
= 80 },
395 .p1
= { .min
= 1, .max
= 8 },
396 .p2
= { .dot_limit
= 200000,
397 .p2_slow
= 10, .p2_fast
= 5 },
400 static const struct intel_limit intel_limits_pineview_lvds
= {
401 .dot
= { .min
= 20000, .max
= 400000 },
402 .vco
= { .min
= 1700000, .max
= 3500000 },
403 .n
= { .min
= 3, .max
= 6 },
404 .m
= { .min
= 2, .max
= 256 },
405 .m1
= { .min
= 0, .max
= 0 },
406 .m2
= { .min
= 0, .max
= 254 },
407 .p
= { .min
= 7, .max
= 112 },
408 .p1
= { .min
= 1, .max
= 8 },
409 .p2
= { .dot_limit
= 112000,
410 .p2_slow
= 14, .p2_fast
= 14 },
413 /* Ironlake / Sandybridge
415 * We calculate clock using (register_value + 2) for N/M1/M2, so here
416 * the range value for them is (actual_value - 2).
418 static const struct intel_limit intel_limits_ironlake_dac
= {
419 .dot
= { .min
= 25000, .max
= 350000 },
420 .vco
= { .min
= 1760000, .max
= 3510000 },
421 .n
= { .min
= 1, .max
= 5 },
422 .m
= { .min
= 79, .max
= 127 },
423 .m1
= { .min
= 12, .max
= 22 },
424 .m2
= { .min
= 5, .max
= 9 },
425 .p
= { .min
= 5, .max
= 80 },
426 .p1
= { .min
= 1, .max
= 8 },
427 .p2
= { .dot_limit
= 225000,
428 .p2_slow
= 10, .p2_fast
= 5 },
431 static const struct intel_limit intel_limits_ironlake_single_lvds
= {
432 .dot
= { .min
= 25000, .max
= 350000 },
433 .vco
= { .min
= 1760000, .max
= 3510000 },
434 .n
= { .min
= 1, .max
= 3 },
435 .m
= { .min
= 79, .max
= 118 },
436 .m1
= { .min
= 12, .max
= 22 },
437 .m2
= { .min
= 5, .max
= 9 },
438 .p
= { .min
= 28, .max
= 112 },
439 .p1
= { .min
= 2, .max
= 8 },
440 .p2
= { .dot_limit
= 225000,
441 .p2_slow
= 14, .p2_fast
= 14 },
444 static const struct intel_limit intel_limits_ironlake_dual_lvds
= {
445 .dot
= { .min
= 25000, .max
= 350000 },
446 .vco
= { .min
= 1760000, .max
= 3510000 },
447 .n
= { .min
= 1, .max
= 3 },
448 .m
= { .min
= 79, .max
= 127 },
449 .m1
= { .min
= 12, .max
= 22 },
450 .m2
= { .min
= 5, .max
= 9 },
451 .p
= { .min
= 14, .max
= 56 },
452 .p1
= { .min
= 2, .max
= 8 },
453 .p2
= { .dot_limit
= 225000,
454 .p2_slow
= 7, .p2_fast
= 7 },
457 /* LVDS 100mhz refclk limits. */
458 static const struct intel_limit intel_limits_ironlake_single_lvds_100m
= {
459 .dot
= { .min
= 25000, .max
= 350000 },
460 .vco
= { .min
= 1760000, .max
= 3510000 },
461 .n
= { .min
= 1, .max
= 2 },
462 .m
= { .min
= 79, .max
= 126 },
463 .m1
= { .min
= 12, .max
= 22 },
464 .m2
= { .min
= 5, .max
= 9 },
465 .p
= { .min
= 28, .max
= 112 },
466 .p1
= { .min
= 2, .max
= 8 },
467 .p2
= { .dot_limit
= 225000,
468 .p2_slow
= 14, .p2_fast
= 14 },
471 static const struct intel_limit intel_limits_ironlake_dual_lvds_100m
= {
472 .dot
= { .min
= 25000, .max
= 350000 },
473 .vco
= { .min
= 1760000, .max
= 3510000 },
474 .n
= { .min
= 1, .max
= 3 },
475 .m
= { .min
= 79, .max
= 126 },
476 .m1
= { .min
= 12, .max
= 22 },
477 .m2
= { .min
= 5, .max
= 9 },
478 .p
= { .min
= 14, .max
= 42 },
479 .p1
= { .min
= 2, .max
= 6 },
480 .p2
= { .dot_limit
= 225000,
481 .p2_slow
= 7, .p2_fast
= 7 },
484 static const struct intel_limit intel_limits_vlv
= {
486 * These are the data rate limits (measured in fast clocks)
487 * since those are the strictest limits we have. The fast
488 * clock and actual rate limits are more relaxed, so checking
489 * them would make no difference.
491 .dot
= { .min
= 25000 * 5, .max
= 270000 * 5 },
492 .vco
= { .min
= 4000000, .max
= 6000000 },
493 .n
= { .min
= 1, .max
= 7 },
494 .m1
= { .min
= 2, .max
= 3 },
495 .m2
= { .min
= 11, .max
= 156 },
496 .p1
= { .min
= 2, .max
= 3 },
497 .p2
= { .p2_slow
= 2, .p2_fast
= 20 }, /* slow=min, fast=max */
500 static const struct intel_limit intel_limits_chv
= {
502 * These are the data rate limits (measured in fast clocks)
503 * since those are the strictest limits we have. The fast
504 * clock and actual rate limits are more relaxed, so checking
505 * them would make no difference.
507 .dot
= { .min
= 25000 * 5, .max
= 540000 * 5},
508 .vco
= { .min
= 4800000, .max
= 6480000 },
509 .n
= { .min
= 1, .max
= 1 },
510 .m1
= { .min
= 2, .max
= 2 },
511 .m2
= { .min
= 24 << 22, .max
= 175 << 22 },
512 .p1
= { .min
= 2, .max
= 4 },
513 .p2
= { .p2_slow
= 1, .p2_fast
= 14 },
516 static const struct intel_limit intel_limits_bxt
= {
517 /* FIXME: find real dot limits */
518 .dot
= { .min
= 0, .max
= INT_MAX
},
519 .vco
= { .min
= 4800000, .max
= 6700000 },
520 .n
= { .min
= 1, .max
= 1 },
521 .m1
= { .min
= 2, .max
= 2 },
522 /* FIXME: find real m2 limits */
523 .m2
= { .min
= 2 << 22, .max
= 255 << 22 },
524 .p1
= { .min
= 2, .max
= 4 },
525 .p2
= { .p2_slow
= 1, .p2_fast
= 20 },
529 needs_modeset(struct drm_crtc_state
*state
)
531 return drm_atomic_crtc_needs_modeset(state
);
535 * Platform specific helpers to calculate the port PLL loopback- (clock.m),
536 * and post-divider (clock.p) values, pre- (clock.vco) and post-divided fast
537 * (clock.dot) clock rates. This fast dot clock is fed to the port's IO logic.
538 * The helpers' return value is the rate of the clock that is fed to the
539 * display engine's pipe which can be the above fast dot clock rate or a
540 * divided-down version of it.
542 /* m1 is reserved as 0 in Pineview, n is a ring counter */
543 static int pnv_calc_dpll_params(int refclk
, struct dpll
*clock
)
545 clock
->m
= clock
->m2
+ 2;
546 clock
->p
= clock
->p1
* clock
->p2
;
547 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
549 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
);
550 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
555 static uint32_t i9xx_dpll_compute_m(struct dpll
*dpll
)
557 return 5 * (dpll
->m1
+ 2) + (dpll
->m2
+ 2);
560 static int i9xx_calc_dpll_params(int refclk
, struct dpll
*clock
)
562 clock
->m
= i9xx_dpll_compute_m(clock
);
563 clock
->p
= clock
->p1
* clock
->p2
;
564 if (WARN_ON(clock
->n
+ 2 == 0 || clock
->p
== 0))
566 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
+ 2);
567 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
572 static int vlv_calc_dpll_params(int refclk
, struct dpll
*clock
)
574 clock
->m
= clock
->m1
* clock
->m2
;
575 clock
->p
= clock
->p1
* clock
->p2
;
576 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
578 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
);
579 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
581 return clock
->dot
/ 5;
584 int chv_calc_dpll_params(int refclk
, struct dpll
*clock
)
586 clock
->m
= clock
->m1
* clock
->m2
;
587 clock
->p
= clock
->p1
* clock
->p2
;
588 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
590 clock
->vco
= DIV_ROUND_CLOSEST_ULL((uint64_t)refclk
* clock
->m
,
592 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
594 return clock
->dot
/ 5;
597 #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
599 * Returns whether the given set of divisors are valid for a given refclk with
600 * the given connectors.
603 static bool intel_PLL_is_valid(struct drm_i915_private
*dev_priv
,
604 const struct intel_limit
*limit
,
605 const struct dpll
*clock
)
607 if (clock
->n
< limit
->n
.min
|| limit
->n
.max
< clock
->n
)
608 INTELPllInvalid("n out of range\n");
609 if (clock
->p1
< limit
->p1
.min
|| limit
->p1
.max
< clock
->p1
)
610 INTELPllInvalid("p1 out of range\n");
611 if (clock
->m2
< limit
->m2
.min
|| limit
->m2
.max
< clock
->m2
)
612 INTELPllInvalid("m2 out of range\n");
613 if (clock
->m1
< limit
->m1
.min
|| limit
->m1
.max
< clock
->m1
)
614 INTELPllInvalid("m1 out of range\n");
616 if (!IS_PINEVIEW(dev_priv
) && !IS_VALLEYVIEW(dev_priv
) &&
617 !IS_CHERRYVIEW(dev_priv
) && !IS_BROXTON(dev_priv
))
618 if (clock
->m1
<= clock
->m2
)
619 INTELPllInvalid("m1 <= m2\n");
621 if (!IS_VALLEYVIEW(dev_priv
) && !IS_CHERRYVIEW(dev_priv
) &&
622 !IS_BROXTON(dev_priv
)) {
623 if (clock
->p
< limit
->p
.min
|| limit
->p
.max
< clock
->p
)
624 INTELPllInvalid("p out of range\n");
625 if (clock
->m
< limit
->m
.min
|| limit
->m
.max
< clock
->m
)
626 INTELPllInvalid("m out of range\n");
629 if (clock
->vco
< limit
->vco
.min
|| limit
->vco
.max
< clock
->vco
)
630 INTELPllInvalid("vco out of range\n");
631 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
632 * connector, etc., rather than just a single range.
634 if (clock
->dot
< limit
->dot
.min
|| limit
->dot
.max
< clock
->dot
)
635 INTELPllInvalid("dot out of range\n");
641 i9xx_select_p2_div(const struct intel_limit
*limit
,
642 const struct intel_crtc_state
*crtc_state
,
645 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
647 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
649 * For LVDS just rely on its current settings for dual-channel.
650 * We haven't figured out how to reliably set up different
651 * single/dual channel state, if we even can.
653 if (intel_is_dual_link_lvds(dev
))
654 return limit
->p2
.p2_fast
;
656 return limit
->p2
.p2_slow
;
658 if (target
< limit
->p2
.dot_limit
)
659 return limit
->p2
.p2_slow
;
661 return limit
->p2
.p2_fast
;
666 * Returns a set of divisors for the desired target clock with the given
667 * refclk, or FALSE. The returned values represent the clock equation:
668 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
670 * Target and reference clocks are specified in kHz.
672 * If match_clock is provided, then best_clock P divider must match the P
673 * divider from @match_clock used for LVDS downclocking.
676 i9xx_find_best_dpll(const struct intel_limit
*limit
,
677 struct intel_crtc_state
*crtc_state
,
678 int target
, int refclk
, struct dpll
*match_clock
,
679 struct dpll
*best_clock
)
681 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
685 memset(best_clock
, 0, sizeof(*best_clock
));
687 clock
.p2
= i9xx_select_p2_div(limit
, crtc_state
, target
);
689 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
691 for (clock
.m2
= limit
->m2
.min
;
692 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
693 if (clock
.m2
>= clock
.m1
)
695 for (clock
.n
= limit
->n
.min
;
696 clock
.n
<= limit
->n
.max
; clock
.n
++) {
697 for (clock
.p1
= limit
->p1
.min
;
698 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
701 i9xx_calc_dpll_params(refclk
, &clock
);
702 if (!intel_PLL_is_valid(to_i915(dev
),
707 clock
.p
!= match_clock
->p
)
710 this_err
= abs(clock
.dot
- target
);
711 if (this_err
< err
) {
720 return (err
!= target
);
724 * Returns a set of divisors for the desired target clock with the given
725 * refclk, or FALSE. The returned values represent the clock equation:
726 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
728 * Target and reference clocks are specified in kHz.
730 * If match_clock is provided, then best_clock P divider must match the P
731 * divider from @match_clock used for LVDS downclocking.
734 pnv_find_best_dpll(const struct intel_limit
*limit
,
735 struct intel_crtc_state
*crtc_state
,
736 int target
, int refclk
, struct dpll
*match_clock
,
737 struct dpll
*best_clock
)
739 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
743 memset(best_clock
, 0, sizeof(*best_clock
));
745 clock
.p2
= i9xx_select_p2_div(limit
, crtc_state
, target
);
747 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
749 for (clock
.m2
= limit
->m2
.min
;
750 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
751 for (clock
.n
= limit
->n
.min
;
752 clock
.n
<= limit
->n
.max
; clock
.n
++) {
753 for (clock
.p1
= limit
->p1
.min
;
754 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
757 pnv_calc_dpll_params(refclk
, &clock
);
758 if (!intel_PLL_is_valid(to_i915(dev
),
763 clock
.p
!= match_clock
->p
)
766 this_err
= abs(clock
.dot
- target
);
767 if (this_err
< err
) {
776 return (err
!= target
);
780 * Returns a set of divisors for the desired target clock with the given
781 * refclk, or FALSE. The returned values represent the clock equation:
782 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
784 * Target and reference clocks are specified in kHz.
786 * If match_clock is provided, then best_clock P divider must match the P
787 * divider from @match_clock used for LVDS downclocking.
790 g4x_find_best_dpll(const struct intel_limit
*limit
,
791 struct intel_crtc_state
*crtc_state
,
792 int target
, int refclk
, struct dpll
*match_clock
,
793 struct dpll
*best_clock
)
795 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
799 /* approximately equals target * 0.00585 */
800 int err_most
= (target
>> 8) + (target
>> 9);
802 memset(best_clock
, 0, sizeof(*best_clock
));
804 clock
.p2
= i9xx_select_p2_div(limit
, crtc_state
, target
);
806 max_n
= limit
->n
.max
;
807 /* based on hardware requirement, prefer smaller n to precision */
808 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
809 /* based on hardware requirement, prefere larger m1,m2 */
810 for (clock
.m1
= limit
->m1
.max
;
811 clock
.m1
>= limit
->m1
.min
; clock
.m1
--) {
812 for (clock
.m2
= limit
->m2
.max
;
813 clock
.m2
>= limit
->m2
.min
; clock
.m2
--) {
814 for (clock
.p1
= limit
->p1
.max
;
815 clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
818 i9xx_calc_dpll_params(refclk
, &clock
);
819 if (!intel_PLL_is_valid(to_i915(dev
),
824 this_err
= abs(clock
.dot
- target
);
825 if (this_err
< err_most
) {
839 * Check if the calculated PLL configuration is more optimal compared to the
840 * best configuration and error found so far. Return the calculated error.
842 static bool vlv_PLL_is_optimal(struct drm_device
*dev
, int target_freq
,
843 const struct dpll
*calculated_clock
,
844 const struct dpll
*best_clock
,
845 unsigned int best_error_ppm
,
846 unsigned int *error_ppm
)
849 * For CHV ignore the error and consider only the P value.
850 * Prefer a bigger P value based on HW requirements.
852 if (IS_CHERRYVIEW(to_i915(dev
))) {
855 return calculated_clock
->p
> best_clock
->p
;
858 if (WARN_ON_ONCE(!target_freq
))
861 *error_ppm
= div_u64(1000000ULL *
862 abs(target_freq
- calculated_clock
->dot
),
865 * Prefer a better P value over a better (smaller) error if the error
866 * is small. Ensure this preference for future configurations too by
867 * setting the error to 0.
869 if (*error_ppm
< 100 && calculated_clock
->p
> best_clock
->p
) {
875 return *error_ppm
+ 10 < best_error_ppm
;
879 * Returns a set of divisors for the desired target clock with the given
880 * refclk, or FALSE. The returned values represent the clock equation:
881 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
884 vlv_find_best_dpll(const struct intel_limit
*limit
,
885 struct intel_crtc_state
*crtc_state
,
886 int target
, int refclk
, struct dpll
*match_clock
,
887 struct dpll
*best_clock
)
889 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
890 struct drm_device
*dev
= crtc
->base
.dev
;
892 unsigned int bestppm
= 1000000;
893 /* min update 19.2 MHz */
894 int max_n
= min(limit
->n
.max
, refclk
/ 19200);
897 target
*= 5; /* fast clock */
899 memset(best_clock
, 0, sizeof(*best_clock
));
901 /* based on hardware requirement, prefer smaller n to precision */
902 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
903 for (clock
.p1
= limit
->p1
.max
; clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
904 for (clock
.p2
= limit
->p2
.p2_fast
; clock
.p2
>= limit
->p2
.p2_slow
;
905 clock
.p2
-= clock
.p2
> 10 ? 2 : 1) {
906 clock
.p
= clock
.p1
* clock
.p2
;
907 /* based on hardware requirement, prefer bigger m1,m2 values */
908 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
; clock
.m1
++) {
911 clock
.m2
= DIV_ROUND_CLOSEST(target
* clock
.p
* clock
.n
,
914 vlv_calc_dpll_params(refclk
, &clock
);
916 if (!intel_PLL_is_valid(to_i915(dev
),
921 if (!vlv_PLL_is_optimal(dev
, target
,
939 * Returns a set of divisors for the desired target clock with the given
940 * refclk, or FALSE. The returned values represent the clock equation:
941 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
944 chv_find_best_dpll(const struct intel_limit
*limit
,
945 struct intel_crtc_state
*crtc_state
,
946 int target
, int refclk
, struct dpll
*match_clock
,
947 struct dpll
*best_clock
)
949 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
950 struct drm_device
*dev
= crtc
->base
.dev
;
951 unsigned int best_error_ppm
;
956 memset(best_clock
, 0, sizeof(*best_clock
));
957 best_error_ppm
= 1000000;
960 * Based on hardware doc, the n always set to 1, and m1 always
961 * set to 2. If requires to support 200Mhz refclk, we need to
962 * revisit this because n may not 1 anymore.
964 clock
.n
= 1, clock
.m1
= 2;
965 target
*= 5; /* fast clock */
967 for (clock
.p1
= limit
->p1
.max
; clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
968 for (clock
.p2
= limit
->p2
.p2_fast
;
969 clock
.p2
>= limit
->p2
.p2_slow
;
970 clock
.p2
-= clock
.p2
> 10 ? 2 : 1) {
971 unsigned int error_ppm
;
973 clock
.p
= clock
.p1
* clock
.p2
;
975 m2
= DIV_ROUND_CLOSEST_ULL(((uint64_t)target
* clock
.p
*
976 clock
.n
) << 22, refclk
* clock
.m1
);
978 if (m2
> INT_MAX
/clock
.m1
)
983 chv_calc_dpll_params(refclk
, &clock
);
985 if (!intel_PLL_is_valid(to_i915(dev
), limit
, &clock
))
988 if (!vlv_PLL_is_optimal(dev
, target
, &clock
, best_clock
,
989 best_error_ppm
, &error_ppm
))
993 best_error_ppm
= error_ppm
;
1001 bool bxt_find_best_dpll(struct intel_crtc_state
*crtc_state
, int target_clock
,
1002 struct dpll
*best_clock
)
1004 int refclk
= 100000;
1005 const struct intel_limit
*limit
= &intel_limits_bxt
;
1007 return chv_find_best_dpll(limit
, crtc_state
,
1008 target_clock
, refclk
, NULL
, best_clock
);
1011 bool intel_crtc_active(struct intel_crtc
*crtc
)
1013 /* Be paranoid as we can arrive here with only partial
1014 * state retrieved from the hardware during setup.
1016 * We can ditch the adjusted_mode.crtc_clock check as soon
1017 * as Haswell has gained clock readout/fastboot support.
1019 * We can ditch the crtc->primary->fb check as soon as we can
1020 * properly reconstruct framebuffers.
1022 * FIXME: The intel_crtc->active here should be switched to
1023 * crtc->state->active once we have proper CRTC states wired up
1026 return crtc
->active
&& crtc
->base
.primary
->state
->fb
&&
1027 crtc
->config
->base
.adjusted_mode
.crtc_clock
;
1030 enum transcoder
intel_pipe_to_cpu_transcoder(struct drm_i915_private
*dev_priv
,
1033 struct intel_crtc
*crtc
= intel_get_crtc_for_pipe(dev_priv
, pipe
);
1035 return crtc
->config
->cpu_transcoder
;
1038 static bool pipe_dsl_stopped(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1040 i915_reg_t reg
= PIPEDSL(pipe
);
1044 if (IS_GEN2(dev_priv
))
1045 line_mask
= DSL_LINEMASK_GEN2
;
1047 line_mask
= DSL_LINEMASK_GEN3
;
1049 line1
= I915_READ(reg
) & line_mask
;
1051 line2
= I915_READ(reg
) & line_mask
;
1053 return line1
== line2
;
1057 * intel_wait_for_pipe_off - wait for pipe to turn off
1058 * @crtc: crtc whose pipe to wait for
1060 * After disabling a pipe, we can't wait for vblank in the usual way,
1061 * spinning on the vblank interrupt status bit, since we won't actually
1062 * see an interrupt when the pipe is disabled.
1064 * On Gen4 and above:
1065 * wait for the pipe register state bit to turn off
1068 * wait for the display line value to settle (it usually
1069 * ends up stopping at the start of the next frame).
1072 static void intel_wait_for_pipe_off(struct intel_crtc
*crtc
)
1074 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1075 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
1076 enum pipe pipe
= crtc
->pipe
;
1078 if (INTEL_GEN(dev_priv
) >= 4) {
1079 i915_reg_t reg
= PIPECONF(cpu_transcoder
);
1081 /* Wait for the Pipe State to go off */
1082 if (intel_wait_for_register(dev_priv
,
1083 reg
, I965_PIPECONF_ACTIVE
, 0,
1085 WARN(1, "pipe_off wait timed out\n");
1087 /* Wait for the display line to settle */
1088 if (wait_for(pipe_dsl_stopped(dev_priv
, pipe
), 100))
1089 WARN(1, "pipe_off wait timed out\n");
1093 /* Only for pre-ILK configs */
1094 void assert_pll(struct drm_i915_private
*dev_priv
,
1095 enum pipe pipe
, bool state
)
1100 val
= I915_READ(DPLL(pipe
));
1101 cur_state
= !!(val
& DPLL_VCO_ENABLE
);
1102 I915_STATE_WARN(cur_state
!= state
,
1103 "PLL state assertion failure (expected %s, current %s)\n",
1104 onoff(state
), onoff(cur_state
));
1107 /* XXX: the dsi pll is shared between MIPI DSI ports */
1108 void assert_dsi_pll(struct drm_i915_private
*dev_priv
, bool state
)
1113 mutex_lock(&dev_priv
->sb_lock
);
1114 val
= vlv_cck_read(dev_priv
, CCK_REG_DSI_PLL_CONTROL
);
1115 mutex_unlock(&dev_priv
->sb_lock
);
1117 cur_state
= val
& DSI_PLL_VCO_EN
;
1118 I915_STATE_WARN(cur_state
!= state
,
1119 "DSI PLL state assertion failure (expected %s, current %s)\n",
1120 onoff(state
), onoff(cur_state
));
1123 static void assert_fdi_tx(struct drm_i915_private
*dev_priv
,
1124 enum pipe pipe
, bool state
)
1127 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1130 if (HAS_DDI(dev_priv
)) {
1131 /* DDI does not have a specific FDI_TX register */
1132 u32 val
= I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder
));
1133 cur_state
= !!(val
& TRANS_DDI_FUNC_ENABLE
);
1135 u32 val
= I915_READ(FDI_TX_CTL(pipe
));
1136 cur_state
= !!(val
& FDI_TX_ENABLE
);
1138 I915_STATE_WARN(cur_state
!= state
,
1139 "FDI TX state assertion failure (expected %s, current %s)\n",
1140 onoff(state
), onoff(cur_state
));
1142 #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
1143 #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
1145 static void assert_fdi_rx(struct drm_i915_private
*dev_priv
,
1146 enum pipe pipe
, bool state
)
1151 val
= I915_READ(FDI_RX_CTL(pipe
));
1152 cur_state
= !!(val
& FDI_RX_ENABLE
);
1153 I915_STATE_WARN(cur_state
!= state
,
1154 "FDI RX state assertion failure (expected %s, current %s)\n",
1155 onoff(state
), onoff(cur_state
));
1157 #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
1158 #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
1160 static void assert_fdi_tx_pll_enabled(struct drm_i915_private
*dev_priv
,
1165 /* ILK FDI PLL is always enabled */
1166 if (IS_GEN5(dev_priv
))
1169 /* On Haswell, DDI ports are responsible for the FDI PLL setup */
1170 if (HAS_DDI(dev_priv
))
1173 val
= I915_READ(FDI_TX_CTL(pipe
));
1174 I915_STATE_WARN(!(val
& FDI_TX_PLL_ENABLE
), "FDI TX PLL assertion failure, should be active but is disabled\n");
1177 void assert_fdi_rx_pll(struct drm_i915_private
*dev_priv
,
1178 enum pipe pipe
, bool state
)
1183 val
= I915_READ(FDI_RX_CTL(pipe
));
1184 cur_state
= !!(val
& FDI_RX_PLL_ENABLE
);
1185 I915_STATE_WARN(cur_state
!= state
,
1186 "FDI RX PLL assertion failure (expected %s, current %s)\n",
1187 onoff(state
), onoff(cur_state
));
1190 void assert_panel_unlocked(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1194 enum pipe panel_pipe
= PIPE_A
;
1197 if (WARN_ON(HAS_DDI(dev_priv
)))
1200 if (HAS_PCH_SPLIT(dev_priv
)) {
1203 pp_reg
= PP_CONTROL(0);
1204 port_sel
= I915_READ(PP_ON_DELAYS(0)) & PANEL_PORT_SELECT_MASK
;
1206 if (port_sel
== PANEL_PORT_SELECT_LVDS
&&
1207 I915_READ(PCH_LVDS
) & LVDS_PIPEB_SELECT
)
1208 panel_pipe
= PIPE_B
;
1209 /* XXX: else fix for eDP */
1210 } else if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) {
1211 /* presumably write lock depends on pipe, not port select */
1212 pp_reg
= PP_CONTROL(pipe
);
1215 pp_reg
= PP_CONTROL(0);
1216 if (I915_READ(LVDS
) & LVDS_PIPEB_SELECT
)
1217 panel_pipe
= PIPE_B
;
1220 val
= I915_READ(pp_reg
);
1221 if (!(val
& PANEL_POWER_ON
) ||
1222 ((val
& PANEL_UNLOCK_MASK
) == PANEL_UNLOCK_REGS
))
1225 I915_STATE_WARN(panel_pipe
== pipe
&& locked
,
1226 "panel assertion failure, pipe %c regs locked\n",
1230 static void assert_cursor(struct drm_i915_private
*dev_priv
,
1231 enum pipe pipe
, bool state
)
1235 if (IS_845G(dev_priv
) || IS_I865G(dev_priv
))
1236 cur_state
= I915_READ(CURCNTR(PIPE_A
)) & CURSOR_ENABLE
;
1238 cur_state
= I915_READ(CURCNTR(pipe
)) & CURSOR_MODE
;
1240 I915_STATE_WARN(cur_state
!= state
,
1241 "cursor on pipe %c assertion failure (expected %s, current %s)\n",
1242 pipe_name(pipe
), onoff(state
), onoff(cur_state
));
1244 #define assert_cursor_enabled(d, p) assert_cursor(d, p, true)
1245 #define assert_cursor_disabled(d, p) assert_cursor(d, p, false)
1247 void assert_pipe(struct drm_i915_private
*dev_priv
,
1248 enum pipe pipe
, bool state
)
1251 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1253 enum intel_display_power_domain power_domain
;
1255 /* if we need the pipe quirk it must be always on */
1256 if ((pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
1257 (pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
1260 power_domain
= POWER_DOMAIN_TRANSCODER(cpu_transcoder
);
1261 if (intel_display_power_get_if_enabled(dev_priv
, power_domain
)) {
1262 u32 val
= I915_READ(PIPECONF(cpu_transcoder
));
1263 cur_state
= !!(val
& PIPECONF_ENABLE
);
1265 intel_display_power_put(dev_priv
, power_domain
);
1270 I915_STATE_WARN(cur_state
!= state
,
1271 "pipe %c assertion failure (expected %s, current %s)\n",
1272 pipe_name(pipe
), onoff(state
), onoff(cur_state
));
1275 static void assert_plane(struct drm_i915_private
*dev_priv
,
1276 enum plane plane
, bool state
)
1281 val
= I915_READ(DSPCNTR(plane
));
1282 cur_state
= !!(val
& DISPLAY_PLANE_ENABLE
);
1283 I915_STATE_WARN(cur_state
!= state
,
1284 "plane %c assertion failure (expected %s, current %s)\n",
1285 plane_name(plane
), onoff(state
), onoff(cur_state
));
1288 #define assert_plane_enabled(d, p) assert_plane(d, p, true)
1289 #define assert_plane_disabled(d, p) assert_plane(d, p, false)
1291 static void assert_planes_disabled(struct drm_i915_private
*dev_priv
,
1296 /* Primary planes are fixed to pipes on gen4+ */
1297 if (INTEL_GEN(dev_priv
) >= 4) {
1298 u32 val
= I915_READ(DSPCNTR(pipe
));
1299 I915_STATE_WARN(val
& DISPLAY_PLANE_ENABLE
,
1300 "plane %c assertion failure, should be disabled but not\n",
1305 /* Need to check both planes against the pipe */
1306 for_each_pipe(dev_priv
, i
) {
1307 u32 val
= I915_READ(DSPCNTR(i
));
1308 enum pipe cur_pipe
= (val
& DISPPLANE_SEL_PIPE_MASK
) >>
1309 DISPPLANE_SEL_PIPE_SHIFT
;
1310 I915_STATE_WARN((val
& DISPLAY_PLANE_ENABLE
) && pipe
== cur_pipe
,
1311 "plane %c assertion failure, should be off on pipe %c but is still active\n",
1312 plane_name(i
), pipe_name(pipe
));
1316 static void assert_sprites_disabled(struct drm_i915_private
*dev_priv
,
1321 if (INTEL_GEN(dev_priv
) >= 9) {
1322 for_each_sprite(dev_priv
, pipe
, sprite
) {
1323 u32 val
= I915_READ(PLANE_CTL(pipe
, sprite
));
1324 I915_STATE_WARN(val
& PLANE_CTL_ENABLE
,
1325 "plane %d assertion failure, should be off on pipe %c but is still active\n",
1326 sprite
, pipe_name(pipe
));
1328 } else if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) {
1329 for_each_sprite(dev_priv
, pipe
, sprite
) {
1330 u32 val
= I915_READ(SPCNTR(pipe
, PLANE_SPRITE0
+ sprite
));
1331 I915_STATE_WARN(val
& SP_ENABLE
,
1332 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1333 sprite_name(pipe
, sprite
), pipe_name(pipe
));
1335 } else if (INTEL_GEN(dev_priv
) >= 7) {
1336 u32 val
= I915_READ(SPRCTL(pipe
));
1337 I915_STATE_WARN(val
& SPRITE_ENABLE
,
1338 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1339 plane_name(pipe
), pipe_name(pipe
));
1340 } else if (INTEL_GEN(dev_priv
) >= 5) {
1341 u32 val
= I915_READ(DVSCNTR(pipe
));
1342 I915_STATE_WARN(val
& DVS_ENABLE
,
1343 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1344 plane_name(pipe
), pipe_name(pipe
));
1348 static void assert_vblank_disabled(struct drm_crtc
*crtc
)
1350 if (I915_STATE_WARN_ON(drm_crtc_vblank_get(crtc
) == 0))
1351 drm_crtc_vblank_put(crtc
);
1354 void assert_pch_transcoder_disabled(struct drm_i915_private
*dev_priv
,
1360 val
= I915_READ(PCH_TRANSCONF(pipe
));
1361 enabled
= !!(val
& TRANS_ENABLE
);
1362 I915_STATE_WARN(enabled
,
1363 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1367 static bool dp_pipe_enabled(struct drm_i915_private
*dev_priv
,
1368 enum pipe pipe
, u32 port_sel
, u32 val
)
1370 if ((val
& DP_PORT_EN
) == 0)
1373 if (HAS_PCH_CPT(dev_priv
)) {
1374 u32 trans_dp_ctl
= I915_READ(TRANS_DP_CTL(pipe
));
1375 if ((trans_dp_ctl
& TRANS_DP_PORT_SEL_MASK
) != port_sel
)
1377 } else if (IS_CHERRYVIEW(dev_priv
)) {
1378 if ((val
& DP_PIPE_MASK_CHV
) != DP_PIPE_SELECT_CHV(pipe
))
1381 if ((val
& DP_PIPE_MASK
) != (pipe
<< 30))
1387 static bool hdmi_pipe_enabled(struct drm_i915_private
*dev_priv
,
1388 enum pipe pipe
, u32 val
)
1390 if ((val
& SDVO_ENABLE
) == 0)
1393 if (HAS_PCH_CPT(dev_priv
)) {
1394 if ((val
& SDVO_PIPE_SEL_MASK_CPT
) != SDVO_PIPE_SEL_CPT(pipe
))
1396 } else if (IS_CHERRYVIEW(dev_priv
)) {
1397 if ((val
& SDVO_PIPE_SEL_MASK_CHV
) != SDVO_PIPE_SEL_CHV(pipe
))
1400 if ((val
& SDVO_PIPE_SEL_MASK
) != SDVO_PIPE_SEL(pipe
))
1406 static bool lvds_pipe_enabled(struct drm_i915_private
*dev_priv
,
1407 enum pipe pipe
, u32 val
)
1409 if ((val
& LVDS_PORT_EN
) == 0)
1412 if (HAS_PCH_CPT(dev_priv
)) {
1413 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1416 if ((val
& LVDS_PIPE_MASK
) != LVDS_PIPE(pipe
))
1422 static bool adpa_pipe_enabled(struct drm_i915_private
*dev_priv
,
1423 enum pipe pipe
, u32 val
)
1425 if ((val
& ADPA_DAC_ENABLE
) == 0)
1427 if (HAS_PCH_CPT(dev_priv
)) {
1428 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1431 if ((val
& ADPA_PIPE_SELECT_MASK
) != ADPA_PIPE_SELECT(pipe
))
1437 static void assert_pch_dp_disabled(struct drm_i915_private
*dev_priv
,
1438 enum pipe pipe
, i915_reg_t reg
,
1441 u32 val
= I915_READ(reg
);
1442 I915_STATE_WARN(dp_pipe_enabled(dev_priv
, pipe
, port_sel
, val
),
1443 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
1444 i915_mmio_reg_offset(reg
), pipe_name(pipe
));
1446 I915_STATE_WARN(HAS_PCH_IBX(dev_priv
) && (val
& DP_PORT_EN
) == 0
1447 && (val
& DP_PIPEB_SELECT
),
1448 "IBX PCH dp port still using transcoder B\n");
1451 static void assert_pch_hdmi_disabled(struct drm_i915_private
*dev_priv
,
1452 enum pipe pipe
, i915_reg_t reg
)
1454 u32 val
= I915_READ(reg
);
1455 I915_STATE_WARN(hdmi_pipe_enabled(dev_priv
, pipe
, val
),
1456 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
1457 i915_mmio_reg_offset(reg
), pipe_name(pipe
));
1459 I915_STATE_WARN(HAS_PCH_IBX(dev_priv
) && (val
& SDVO_ENABLE
) == 0
1460 && (val
& SDVO_PIPE_B_SELECT
),
1461 "IBX PCH hdmi port still using transcoder B\n");
1464 static void assert_pch_ports_disabled(struct drm_i915_private
*dev_priv
,
1469 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_B
, TRANS_DP_PORT_SEL_B
);
1470 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_C
, TRANS_DP_PORT_SEL_C
);
1471 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_D
, TRANS_DP_PORT_SEL_D
);
1473 val
= I915_READ(PCH_ADPA
);
1474 I915_STATE_WARN(adpa_pipe_enabled(dev_priv
, pipe
, val
),
1475 "PCH VGA enabled on transcoder %c, should be disabled\n",
1478 val
= I915_READ(PCH_LVDS
);
1479 I915_STATE_WARN(lvds_pipe_enabled(dev_priv
, pipe
, val
),
1480 "PCH LVDS enabled on transcoder %c, should be disabled\n",
1483 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIB
);
1484 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIC
);
1485 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMID
);
1488 static void _vlv_enable_pll(struct intel_crtc
*crtc
,
1489 const struct intel_crtc_state
*pipe_config
)
1491 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1492 enum pipe pipe
= crtc
->pipe
;
1494 I915_WRITE(DPLL(pipe
), pipe_config
->dpll_hw_state
.dpll
);
1495 POSTING_READ(DPLL(pipe
));
1498 if (intel_wait_for_register(dev_priv
,
1503 DRM_ERROR("DPLL %d failed to lock\n", pipe
);
1506 static void vlv_enable_pll(struct intel_crtc
*crtc
,
1507 const struct intel_crtc_state
*pipe_config
)
1509 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1510 enum pipe pipe
= crtc
->pipe
;
1512 assert_pipe_disabled(dev_priv
, pipe
);
1514 /* PLL is protected by panel, make sure we can write it */
1515 assert_panel_unlocked(dev_priv
, pipe
);
1517 if (pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
)
1518 _vlv_enable_pll(crtc
, pipe_config
);
1520 I915_WRITE(DPLL_MD(pipe
), pipe_config
->dpll_hw_state
.dpll_md
);
1521 POSTING_READ(DPLL_MD(pipe
));
1525 static void _chv_enable_pll(struct intel_crtc
*crtc
,
1526 const struct intel_crtc_state
*pipe_config
)
1528 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1529 enum pipe pipe
= crtc
->pipe
;
1530 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
1533 mutex_lock(&dev_priv
->sb_lock
);
1535 /* Enable back the 10bit clock to display controller */
1536 tmp
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
));
1537 tmp
|= DPIO_DCLKP_EN
;
1538 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
), tmp
);
1540 mutex_unlock(&dev_priv
->sb_lock
);
1543 * Need to wait > 100ns between dclkp clock enable bit and PLL enable.
1548 I915_WRITE(DPLL(pipe
), pipe_config
->dpll_hw_state
.dpll
);
1550 /* Check PLL is locked */
1551 if (intel_wait_for_register(dev_priv
,
1552 DPLL(pipe
), DPLL_LOCK_VLV
, DPLL_LOCK_VLV
,
1554 DRM_ERROR("PLL %d failed to lock\n", pipe
);
1557 static void chv_enable_pll(struct intel_crtc
*crtc
,
1558 const struct intel_crtc_state
*pipe_config
)
1560 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1561 enum pipe pipe
= crtc
->pipe
;
1563 assert_pipe_disabled(dev_priv
, pipe
);
1565 /* PLL is protected by panel, make sure we can write it */
1566 assert_panel_unlocked(dev_priv
, pipe
);
1568 if (pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
)
1569 _chv_enable_pll(crtc
, pipe_config
);
1571 if (pipe
!= PIPE_A
) {
1573 * WaPixelRepeatModeFixForC0:chv
1575 * DPLLCMD is AWOL. Use chicken bits to propagate
1576 * the value from DPLLBMD to either pipe B or C.
1578 I915_WRITE(CBR4_VLV
, pipe
== PIPE_B
? CBR_DPLLBMD_PIPE_B
: CBR_DPLLBMD_PIPE_C
);
1579 I915_WRITE(DPLL_MD(PIPE_B
), pipe_config
->dpll_hw_state
.dpll_md
);
1580 I915_WRITE(CBR4_VLV
, 0);
1581 dev_priv
->chv_dpll_md
[pipe
] = pipe_config
->dpll_hw_state
.dpll_md
;
1584 * DPLLB VGA mode also seems to cause problems.
1585 * We should always have it disabled.
1587 WARN_ON((I915_READ(DPLL(PIPE_B
)) & DPLL_VGA_MODE_DIS
) == 0);
1589 I915_WRITE(DPLL_MD(pipe
), pipe_config
->dpll_hw_state
.dpll_md
);
1590 POSTING_READ(DPLL_MD(pipe
));
1594 static int intel_num_dvo_pipes(struct drm_i915_private
*dev_priv
)
1596 struct intel_crtc
*crtc
;
1599 for_each_intel_crtc(&dev_priv
->drm
, crtc
) {
1600 count
+= crtc
->base
.state
->active
&&
1601 intel_crtc_has_type(crtc
->config
, INTEL_OUTPUT_DVO
);
1607 static void i9xx_enable_pll(struct intel_crtc
*crtc
)
1609 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1610 i915_reg_t reg
= DPLL(crtc
->pipe
);
1611 u32 dpll
= crtc
->config
->dpll_hw_state
.dpll
;
1613 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1615 /* PLL is protected by panel, make sure we can write it */
1616 if (IS_MOBILE(dev_priv
) && !IS_I830(dev_priv
))
1617 assert_panel_unlocked(dev_priv
, crtc
->pipe
);
1619 /* Enable DVO 2x clock on both PLLs if necessary */
1620 if (IS_I830(dev_priv
) && intel_num_dvo_pipes(dev_priv
) > 0) {
1622 * It appears to be important that we don't enable this
1623 * for the current pipe before otherwise configuring the
1624 * PLL. No idea how this should be handled if multiple
1625 * DVO outputs are enabled simultaneosly.
1627 dpll
|= DPLL_DVO_2X_MODE
;
1628 I915_WRITE(DPLL(!crtc
->pipe
),
1629 I915_READ(DPLL(!crtc
->pipe
)) | DPLL_DVO_2X_MODE
);
1633 * Apparently we need to have VGA mode enabled prior to changing
1634 * the P1/P2 dividers. Otherwise the DPLL will keep using the old
1635 * dividers, even though the register value does change.
1639 I915_WRITE(reg
, dpll
);
1641 /* Wait for the clocks to stabilize. */
1645 if (INTEL_GEN(dev_priv
) >= 4) {
1646 I915_WRITE(DPLL_MD(crtc
->pipe
),
1647 crtc
->config
->dpll_hw_state
.dpll_md
);
1649 /* The pixel multiplier can only be updated once the
1650 * DPLL is enabled and the clocks are stable.
1652 * So write it again.
1654 I915_WRITE(reg
, dpll
);
1657 /* We do this three times for luck */
1658 I915_WRITE(reg
, dpll
);
1660 udelay(150); /* wait for warmup */
1661 I915_WRITE(reg
, dpll
);
1663 udelay(150); /* wait for warmup */
1664 I915_WRITE(reg
, dpll
);
1666 udelay(150); /* wait for warmup */
1670 * i9xx_disable_pll - disable a PLL
1671 * @dev_priv: i915 private structure
1672 * @pipe: pipe PLL to disable
1674 * Disable the PLL for @pipe, making sure the pipe is off first.
1676 * Note! This is for pre-ILK only.
1678 static void i9xx_disable_pll(struct intel_crtc
*crtc
)
1680 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1681 enum pipe pipe
= crtc
->pipe
;
1683 /* Disable DVO 2x clock on both PLLs if necessary */
1684 if (IS_I830(dev_priv
) &&
1685 intel_crtc_has_type(crtc
->config
, INTEL_OUTPUT_DVO
) &&
1686 !intel_num_dvo_pipes(dev_priv
)) {
1687 I915_WRITE(DPLL(PIPE_B
),
1688 I915_READ(DPLL(PIPE_B
)) & ~DPLL_DVO_2X_MODE
);
1689 I915_WRITE(DPLL(PIPE_A
),
1690 I915_READ(DPLL(PIPE_A
)) & ~DPLL_DVO_2X_MODE
);
1693 /* Don't disable pipe or pipe PLLs if needed */
1694 if ((pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
1695 (pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
1698 /* Make sure the pipe isn't still relying on us */
1699 assert_pipe_disabled(dev_priv
, pipe
);
1701 I915_WRITE(DPLL(pipe
), DPLL_VGA_MODE_DIS
);
1702 POSTING_READ(DPLL(pipe
));
1705 static void vlv_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1709 /* Make sure the pipe isn't still relying on us */
1710 assert_pipe_disabled(dev_priv
, pipe
);
1712 val
= DPLL_INTEGRATED_REF_CLK_VLV
|
1713 DPLL_REF_CLK_ENABLE_VLV
| DPLL_VGA_MODE_DIS
;
1715 val
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
1717 I915_WRITE(DPLL(pipe
), val
);
1718 POSTING_READ(DPLL(pipe
));
1721 static void chv_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1723 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
1726 /* Make sure the pipe isn't still relying on us */
1727 assert_pipe_disabled(dev_priv
, pipe
);
1729 val
= DPLL_SSC_REF_CLK_CHV
|
1730 DPLL_REF_CLK_ENABLE_VLV
| DPLL_VGA_MODE_DIS
;
1732 val
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
1734 I915_WRITE(DPLL(pipe
), val
);
1735 POSTING_READ(DPLL(pipe
));
1737 mutex_lock(&dev_priv
->sb_lock
);
1739 /* Disable 10bit clock to display controller */
1740 val
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
));
1741 val
&= ~DPIO_DCLKP_EN
;
1742 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
), val
);
1744 mutex_unlock(&dev_priv
->sb_lock
);
1747 void vlv_wait_port_ready(struct drm_i915_private
*dev_priv
,
1748 struct intel_digital_port
*dport
,
1749 unsigned int expected_mask
)
1752 i915_reg_t dpll_reg
;
1754 switch (dport
->port
) {
1756 port_mask
= DPLL_PORTB_READY_MASK
;
1760 port_mask
= DPLL_PORTC_READY_MASK
;
1762 expected_mask
<<= 4;
1765 port_mask
= DPLL_PORTD_READY_MASK
;
1766 dpll_reg
= DPIO_PHY_STATUS
;
1772 if (intel_wait_for_register(dev_priv
,
1773 dpll_reg
, port_mask
, expected_mask
,
1775 WARN(1, "timed out waiting for port %c ready: got 0x%x, expected 0x%x\n",
1776 port_name(dport
->port
), I915_READ(dpll_reg
) & port_mask
, expected_mask
);
1779 static void ironlake_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1782 struct intel_crtc
*intel_crtc
= intel_get_crtc_for_pipe(dev_priv
,
1785 uint32_t val
, pipeconf_val
;
1787 /* Make sure PCH DPLL is enabled */
1788 assert_shared_dpll_enabled(dev_priv
, intel_crtc
->config
->shared_dpll
);
1790 /* FDI must be feeding us bits for PCH ports */
1791 assert_fdi_tx_enabled(dev_priv
, pipe
);
1792 assert_fdi_rx_enabled(dev_priv
, pipe
);
1794 if (HAS_PCH_CPT(dev_priv
)) {
1795 /* Workaround: Set the timing override bit before enabling the
1796 * pch transcoder. */
1797 reg
= TRANS_CHICKEN2(pipe
);
1798 val
= I915_READ(reg
);
1799 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
1800 I915_WRITE(reg
, val
);
1803 reg
= PCH_TRANSCONF(pipe
);
1804 val
= I915_READ(reg
);
1805 pipeconf_val
= I915_READ(PIPECONF(pipe
));
1807 if (HAS_PCH_IBX(dev_priv
)) {
1809 * Make the BPC in transcoder be consistent with
1810 * that in pipeconf reg. For HDMI we must use 8bpc
1811 * here for both 8bpc and 12bpc.
1813 val
&= ~PIPECONF_BPC_MASK
;
1814 if (intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_HDMI
))
1815 val
|= PIPECONF_8BPC
;
1817 val
|= pipeconf_val
& PIPECONF_BPC_MASK
;
1820 val
&= ~TRANS_INTERLACE_MASK
;
1821 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK
) == PIPECONF_INTERLACED_ILK
)
1822 if (HAS_PCH_IBX(dev_priv
) &&
1823 intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_SDVO
))
1824 val
|= TRANS_LEGACY_INTERLACED_ILK
;
1826 val
|= TRANS_INTERLACED
;
1828 val
|= TRANS_PROGRESSIVE
;
1830 I915_WRITE(reg
, val
| TRANS_ENABLE
);
1831 if (intel_wait_for_register(dev_priv
,
1832 reg
, TRANS_STATE_ENABLE
, TRANS_STATE_ENABLE
,
1834 DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe
));
1837 static void lpt_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1838 enum transcoder cpu_transcoder
)
1840 u32 val
, pipeconf_val
;
1842 /* FDI must be feeding us bits for PCH ports */
1843 assert_fdi_tx_enabled(dev_priv
, (enum pipe
) cpu_transcoder
);
1844 assert_fdi_rx_enabled(dev_priv
, TRANSCODER_A
);
1846 /* Workaround: set timing override bit. */
1847 val
= I915_READ(TRANS_CHICKEN2(PIPE_A
));
1848 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
1849 I915_WRITE(TRANS_CHICKEN2(PIPE_A
), val
);
1852 pipeconf_val
= I915_READ(PIPECONF(cpu_transcoder
));
1854 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK_HSW
) ==
1855 PIPECONF_INTERLACED_ILK
)
1856 val
|= TRANS_INTERLACED
;
1858 val
|= TRANS_PROGRESSIVE
;
1860 I915_WRITE(LPT_TRANSCONF
, val
);
1861 if (intel_wait_for_register(dev_priv
,
1866 DRM_ERROR("Failed to enable PCH transcoder\n");
1869 static void ironlake_disable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1875 /* FDI relies on the transcoder */
1876 assert_fdi_tx_disabled(dev_priv
, pipe
);
1877 assert_fdi_rx_disabled(dev_priv
, pipe
);
1879 /* Ports must be off as well */
1880 assert_pch_ports_disabled(dev_priv
, pipe
);
1882 reg
= PCH_TRANSCONF(pipe
);
1883 val
= I915_READ(reg
);
1884 val
&= ~TRANS_ENABLE
;
1885 I915_WRITE(reg
, val
);
1886 /* wait for PCH transcoder off, transcoder state */
1887 if (intel_wait_for_register(dev_priv
,
1888 reg
, TRANS_STATE_ENABLE
, 0,
1890 DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe
));
1892 if (HAS_PCH_CPT(dev_priv
)) {
1893 /* Workaround: Clear the timing override chicken bit again. */
1894 reg
= TRANS_CHICKEN2(pipe
);
1895 val
= I915_READ(reg
);
1896 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
1897 I915_WRITE(reg
, val
);
1901 void lpt_disable_pch_transcoder(struct drm_i915_private
*dev_priv
)
1905 val
= I915_READ(LPT_TRANSCONF
);
1906 val
&= ~TRANS_ENABLE
;
1907 I915_WRITE(LPT_TRANSCONF
, val
);
1908 /* wait for PCH transcoder off, transcoder state */
1909 if (intel_wait_for_register(dev_priv
,
1910 LPT_TRANSCONF
, TRANS_STATE_ENABLE
, 0,
1912 DRM_ERROR("Failed to disable PCH transcoder\n");
1914 /* Workaround: clear timing override bit. */
1915 val
= I915_READ(TRANS_CHICKEN2(PIPE_A
));
1916 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
1917 I915_WRITE(TRANS_CHICKEN2(PIPE_A
), val
);
1920 enum transcoder
intel_crtc_pch_transcoder(struct intel_crtc
*crtc
)
1922 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1924 WARN_ON(!crtc
->config
->has_pch_encoder
);
1926 if (HAS_PCH_LPT(dev_priv
))
1927 return TRANSCODER_A
;
1929 return (enum transcoder
) crtc
->pipe
;
1933 * intel_enable_pipe - enable a pipe, asserting requirements
1934 * @crtc: crtc responsible for the pipe
1936 * Enable @crtc's pipe, making sure that various hardware specific requirements
1937 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
1939 static void intel_enable_pipe(struct intel_crtc
*crtc
)
1941 struct drm_device
*dev
= crtc
->base
.dev
;
1942 struct drm_i915_private
*dev_priv
= to_i915(dev
);
1943 enum pipe pipe
= crtc
->pipe
;
1944 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
1948 DRM_DEBUG_KMS("enabling pipe %c\n", pipe_name(pipe
));
1950 assert_planes_disabled(dev_priv
, pipe
);
1951 assert_cursor_disabled(dev_priv
, pipe
);
1952 assert_sprites_disabled(dev_priv
, pipe
);
1955 * A pipe without a PLL won't actually be able to drive bits from
1956 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
1959 if (HAS_GMCH_DISPLAY(dev_priv
)) {
1960 if (intel_crtc_has_type(crtc
->config
, INTEL_OUTPUT_DSI
))
1961 assert_dsi_pll_enabled(dev_priv
);
1963 assert_pll_enabled(dev_priv
, pipe
);
1965 if (crtc
->config
->has_pch_encoder
) {
1966 /* if driving the PCH, we need FDI enabled */
1967 assert_fdi_rx_pll_enabled(dev_priv
,
1968 (enum pipe
) intel_crtc_pch_transcoder(crtc
));
1969 assert_fdi_tx_pll_enabled(dev_priv
,
1970 (enum pipe
) cpu_transcoder
);
1972 /* FIXME: assert CPU port conditions for SNB+ */
1975 reg
= PIPECONF(cpu_transcoder
);
1976 val
= I915_READ(reg
);
1977 if (val
& PIPECONF_ENABLE
) {
1978 WARN_ON(!((pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
1979 (pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
)));
1983 I915_WRITE(reg
, val
| PIPECONF_ENABLE
);
1987 * Until the pipe starts DSL will read as 0, which would cause
1988 * an apparent vblank timestamp jump, which messes up also the
1989 * frame count when it's derived from the timestamps. So let's
1990 * wait for the pipe to start properly before we call
1991 * drm_crtc_vblank_on()
1993 if (dev
->max_vblank_count
== 0 &&
1994 wait_for(intel_get_crtc_scanline(crtc
) != crtc
->scanline_offset
, 50))
1995 DRM_ERROR("pipe %c didn't start\n", pipe_name(pipe
));
1999 * intel_disable_pipe - disable a pipe, asserting requirements
2000 * @crtc: crtc whose pipes is to be disabled
2002 * Disable the pipe of @crtc, making sure that various hardware
2003 * specific requirements are met, if applicable, e.g. plane
2004 * disabled, panel fitter off, etc.
2006 * Will wait until the pipe has shut down before returning.
2008 static void intel_disable_pipe(struct intel_crtc
*crtc
)
2010 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
2011 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
2012 enum pipe pipe
= crtc
->pipe
;
2016 DRM_DEBUG_KMS("disabling pipe %c\n", pipe_name(pipe
));
2019 * Make sure planes won't keep trying to pump pixels to us,
2020 * or we might hang the display.
2022 assert_planes_disabled(dev_priv
, pipe
);
2023 assert_cursor_disabled(dev_priv
, pipe
);
2024 assert_sprites_disabled(dev_priv
, pipe
);
2026 reg
= PIPECONF(cpu_transcoder
);
2027 val
= I915_READ(reg
);
2028 if ((val
& PIPECONF_ENABLE
) == 0)
2032 * Double wide has implications for planes
2033 * so best keep it disabled when not needed.
2035 if (crtc
->config
->double_wide
)
2036 val
&= ~PIPECONF_DOUBLE_WIDE
;
2038 /* Don't disable pipe or pipe PLLs if needed */
2039 if (!(pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) &&
2040 !(pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
2041 val
&= ~PIPECONF_ENABLE
;
2043 I915_WRITE(reg
, val
);
2044 if ((val
& PIPECONF_ENABLE
) == 0)
2045 intel_wait_for_pipe_off(crtc
);
2048 static unsigned int intel_tile_size(const struct drm_i915_private
*dev_priv
)
2050 return IS_GEN2(dev_priv
) ? 2048 : 4096;
2053 static unsigned int intel_tile_width_bytes(const struct drm_i915_private
*dev_priv
,
2054 uint64_t fb_modifier
, unsigned int cpp
)
2056 switch (fb_modifier
) {
2057 case DRM_FORMAT_MOD_NONE
:
2059 case I915_FORMAT_MOD_X_TILED
:
2060 if (IS_GEN2(dev_priv
))
2064 case I915_FORMAT_MOD_Y_TILED
:
2065 if (IS_GEN2(dev_priv
) || HAS_128_BYTE_Y_TILING(dev_priv
))
2069 case I915_FORMAT_MOD_Yf_TILED
:
2085 MISSING_CASE(fb_modifier
);
2090 unsigned int intel_tile_height(const struct drm_i915_private
*dev_priv
,
2091 uint64_t fb_modifier
, unsigned int cpp
)
2093 if (fb_modifier
== DRM_FORMAT_MOD_NONE
)
2096 return intel_tile_size(dev_priv
) /
2097 intel_tile_width_bytes(dev_priv
, fb_modifier
, cpp
);
2100 /* Return the tile dimensions in pixel units */
2101 static void intel_tile_dims(const struct drm_i915_private
*dev_priv
,
2102 unsigned int *tile_width
,
2103 unsigned int *tile_height
,
2104 uint64_t fb_modifier
,
2107 unsigned int tile_width_bytes
=
2108 intel_tile_width_bytes(dev_priv
, fb_modifier
, cpp
);
2110 *tile_width
= tile_width_bytes
/ cpp
;
2111 *tile_height
= intel_tile_size(dev_priv
) / tile_width_bytes
;
2115 intel_fb_align_height(struct drm_device
*dev
, unsigned int height
,
2116 uint32_t pixel_format
, uint64_t fb_modifier
)
2118 unsigned int cpp
= drm_format_plane_cpp(pixel_format
, 0);
2119 unsigned int tile_height
= intel_tile_height(to_i915(dev
), fb_modifier
, cpp
);
2121 return ALIGN(height
, tile_height
);
2124 unsigned int intel_rotation_info_size(const struct intel_rotation_info
*rot_info
)
2126 unsigned int size
= 0;
2129 for (i
= 0 ; i
< ARRAY_SIZE(rot_info
->plane
); i
++)
2130 size
+= rot_info
->plane
[i
].width
* rot_info
->plane
[i
].height
;
2136 intel_fill_fb_ggtt_view(struct i915_ggtt_view
*view
,
2137 const struct drm_framebuffer
*fb
,
2138 unsigned int rotation
)
2140 if (drm_rotation_90_or_270(rotation
)) {
2141 *view
= i915_ggtt_view_rotated
;
2142 view
->params
.rotated
= to_intel_framebuffer(fb
)->rot_info
;
2144 *view
= i915_ggtt_view_normal
;
2148 static unsigned int intel_linear_alignment(const struct drm_i915_private
*dev_priv
)
2150 if (INTEL_INFO(dev_priv
)->gen
>= 9)
2152 else if (IS_BROADWATER(dev_priv
) || IS_CRESTLINE(dev_priv
) ||
2153 IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
2155 else if (INTEL_INFO(dev_priv
)->gen
>= 4)
2161 static unsigned int intel_surf_alignment(const struct drm_i915_private
*dev_priv
,
2162 uint64_t fb_modifier
)
2164 switch (fb_modifier
) {
2165 case DRM_FORMAT_MOD_NONE
:
2166 return intel_linear_alignment(dev_priv
);
2167 case I915_FORMAT_MOD_X_TILED
:
2168 if (INTEL_INFO(dev_priv
)->gen
>= 9)
2171 case I915_FORMAT_MOD_Y_TILED
:
2172 case I915_FORMAT_MOD_Yf_TILED
:
2173 return 1 * 1024 * 1024;
2175 MISSING_CASE(fb_modifier
);
2181 intel_pin_and_fence_fb_obj(struct drm_framebuffer
*fb
, unsigned int rotation
)
2183 struct drm_device
*dev
= fb
->dev
;
2184 struct drm_i915_private
*dev_priv
= to_i915(dev
);
2185 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
2186 struct i915_ggtt_view view
;
2187 struct i915_vma
*vma
;
2190 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
2192 alignment
= intel_surf_alignment(dev_priv
, fb
->modifier
[0]);
2194 intel_fill_fb_ggtt_view(&view
, fb
, rotation
);
2196 /* Note that the w/a also requires 64 PTE of padding following the
2197 * bo. We currently fill all unused PTE with the shadow page and so
2198 * we should always have valid PTE following the scanout preventing
2201 if (intel_scanout_needs_vtd_wa(dev_priv
) && alignment
< 256 * 1024)
2202 alignment
= 256 * 1024;
2205 * Global gtt pte registers are special registers which actually forward
2206 * writes to a chunk of system memory. Which means that there is no risk
2207 * that the register values disappear as soon as we call
2208 * intel_runtime_pm_put(), so it is correct to wrap only the
2209 * pin/unpin/fence and not more.
2211 intel_runtime_pm_get(dev_priv
);
2213 vma
= i915_gem_object_pin_to_display_plane(obj
, alignment
, &view
);
2217 if (i915_vma_is_map_and_fenceable(vma
)) {
2218 /* Install a fence for tiled scan-out. Pre-i965 always needs a
2219 * fence, whereas 965+ only requires a fence if using
2220 * framebuffer compression. For simplicity, we always, when
2221 * possible, install a fence as the cost is not that onerous.
2223 * If we fail to fence the tiled scanout, then either the
2224 * modeset will reject the change (which is highly unlikely as
2225 * the affected systems, all but one, do not have unmappable
2226 * space) or we will not be able to enable full powersaving
2227 * techniques (also likely not to apply due to various limits
2228 * FBC and the like impose on the size of the buffer, which
2229 * presumably we violated anyway with this unmappable buffer).
2230 * Anyway, it is presumably better to stumble onwards with
2231 * something and try to run the system in a "less than optimal"
2232 * mode that matches the user configuration.
2234 if (i915_vma_get_fence(vma
) == 0)
2235 i915_vma_pin_fence(vma
);
2239 intel_runtime_pm_put(dev_priv
);
2243 void intel_unpin_fb_obj(struct drm_framebuffer
*fb
, unsigned int rotation
)
2245 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
2246 struct i915_ggtt_view view
;
2247 struct i915_vma
*vma
;
2249 WARN_ON(!mutex_is_locked(&obj
->base
.dev
->struct_mutex
));
2251 intel_fill_fb_ggtt_view(&view
, fb
, rotation
);
2252 vma
= i915_gem_object_to_ggtt(obj
, &view
);
2254 i915_vma_unpin_fence(vma
);
2255 i915_gem_object_unpin_from_display_plane(vma
);
2258 static int intel_fb_pitch(const struct drm_framebuffer
*fb
, int plane
,
2259 unsigned int rotation
)
2261 if (drm_rotation_90_or_270(rotation
))
2262 return to_intel_framebuffer(fb
)->rotated
[plane
].pitch
;
2264 return fb
->pitches
[plane
];
2268 * Convert the x/y offsets into a linear offset.
2269 * Only valid with 0/180 degree rotation, which is fine since linear
2270 * offset is only used with linear buffers on pre-hsw and tiled buffers
2271 * with gen2/3, and 90/270 degree rotations isn't supported on any of them.
2273 u32
intel_fb_xy_to_linear(int x
, int y
,
2274 const struct intel_plane_state
*state
,
2277 const struct drm_framebuffer
*fb
= state
->base
.fb
;
2278 unsigned int cpp
= drm_format_plane_cpp(fb
->pixel_format
, plane
);
2279 unsigned int pitch
= fb
->pitches
[plane
];
2281 return y
* pitch
+ x
* cpp
;
2285 * Add the x/y offsets derived from fb->offsets[] to the user
2286 * specified plane src x/y offsets. The resulting x/y offsets
2287 * specify the start of scanout from the beginning of the gtt mapping.
2289 void intel_add_fb_offsets(int *x
, int *y
,
2290 const struct intel_plane_state
*state
,
2294 const struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(state
->base
.fb
);
2295 unsigned int rotation
= state
->base
.rotation
;
2297 if (drm_rotation_90_or_270(rotation
)) {
2298 *x
+= intel_fb
->rotated
[plane
].x
;
2299 *y
+= intel_fb
->rotated
[plane
].y
;
2301 *x
+= intel_fb
->normal
[plane
].x
;
2302 *y
+= intel_fb
->normal
[plane
].y
;
2307 * Input tile dimensions and pitch must already be
2308 * rotated to match x and y, and in pixel units.
2310 static u32
_intel_adjust_tile_offset(int *x
, int *y
,
2311 unsigned int tile_width
,
2312 unsigned int tile_height
,
2313 unsigned int tile_size
,
2314 unsigned int pitch_tiles
,
2318 unsigned int pitch_pixels
= pitch_tiles
* tile_width
;
2321 WARN_ON(old_offset
& (tile_size
- 1));
2322 WARN_ON(new_offset
& (tile_size
- 1));
2323 WARN_ON(new_offset
> old_offset
);
2325 tiles
= (old_offset
- new_offset
) / tile_size
;
2327 *y
+= tiles
/ pitch_tiles
* tile_height
;
2328 *x
+= tiles
% pitch_tiles
* tile_width
;
2330 /* minimize x in case it got needlessly big */
2331 *y
+= *x
/ pitch_pixels
* tile_height
;
2338 * Adjust the tile offset by moving the difference into
2341 static u32
intel_adjust_tile_offset(int *x
, int *y
,
2342 const struct intel_plane_state
*state
, int plane
,
2343 u32 old_offset
, u32 new_offset
)
2345 const struct drm_i915_private
*dev_priv
= to_i915(state
->base
.plane
->dev
);
2346 const struct drm_framebuffer
*fb
= state
->base
.fb
;
2347 unsigned int cpp
= drm_format_plane_cpp(fb
->pixel_format
, plane
);
2348 unsigned int rotation
= state
->base
.rotation
;
2349 unsigned int pitch
= intel_fb_pitch(fb
, plane
, rotation
);
2351 WARN_ON(new_offset
> old_offset
);
2353 if (fb
->modifier
[plane
] != DRM_FORMAT_MOD_NONE
) {
2354 unsigned int tile_size
, tile_width
, tile_height
;
2355 unsigned int pitch_tiles
;
2357 tile_size
= intel_tile_size(dev_priv
);
2358 intel_tile_dims(dev_priv
, &tile_width
, &tile_height
,
2359 fb
->modifier
[plane
], cpp
);
2361 if (drm_rotation_90_or_270(rotation
)) {
2362 pitch_tiles
= pitch
/ tile_height
;
2363 swap(tile_width
, tile_height
);
2365 pitch_tiles
= pitch
/ (tile_width
* cpp
);
2368 _intel_adjust_tile_offset(x
, y
, tile_width
, tile_height
,
2369 tile_size
, pitch_tiles
,
2370 old_offset
, new_offset
);
2372 old_offset
+= *y
* pitch
+ *x
* cpp
;
2374 *y
= (old_offset
- new_offset
) / pitch
;
2375 *x
= ((old_offset
- new_offset
) - *y
* pitch
) / cpp
;
2382 * Computes the linear offset to the base tile and adjusts
2383 * x, y. bytes per pixel is assumed to be a power-of-two.
2385 * In the 90/270 rotated case, x and y are assumed
2386 * to be already rotated to match the rotated GTT view, and
2387 * pitch is the tile_height aligned framebuffer height.
2389 * This function is used when computing the derived information
2390 * under intel_framebuffer, so using any of that information
2391 * here is not allowed. Anything under drm_framebuffer can be
2392 * used. This is why the user has to pass in the pitch since it
2393 * is specified in the rotated orientation.
2395 static u32
_intel_compute_tile_offset(const struct drm_i915_private
*dev_priv
,
2397 const struct drm_framebuffer
*fb
, int plane
,
2399 unsigned int rotation
,
2402 uint64_t fb_modifier
= fb
->modifier
[plane
];
2403 unsigned int cpp
= drm_format_plane_cpp(fb
->pixel_format
, plane
);
2404 u32 offset
, offset_aligned
;
2409 if (fb_modifier
!= DRM_FORMAT_MOD_NONE
) {
2410 unsigned int tile_size
, tile_width
, tile_height
;
2411 unsigned int tile_rows
, tiles
, pitch_tiles
;
2413 tile_size
= intel_tile_size(dev_priv
);
2414 intel_tile_dims(dev_priv
, &tile_width
, &tile_height
,
2417 if (drm_rotation_90_or_270(rotation
)) {
2418 pitch_tiles
= pitch
/ tile_height
;
2419 swap(tile_width
, tile_height
);
2421 pitch_tiles
= pitch
/ (tile_width
* cpp
);
2424 tile_rows
= *y
/ tile_height
;
2427 tiles
= *x
/ tile_width
;
2430 offset
= (tile_rows
* pitch_tiles
+ tiles
) * tile_size
;
2431 offset_aligned
= offset
& ~alignment
;
2433 _intel_adjust_tile_offset(x
, y
, tile_width
, tile_height
,
2434 tile_size
, pitch_tiles
,
2435 offset
, offset_aligned
);
2437 offset
= *y
* pitch
+ *x
* cpp
;
2438 offset_aligned
= offset
& ~alignment
;
2440 *y
= (offset
& alignment
) / pitch
;
2441 *x
= ((offset
& alignment
) - *y
* pitch
) / cpp
;
2444 return offset_aligned
;
2447 u32
intel_compute_tile_offset(int *x
, int *y
,
2448 const struct intel_plane_state
*state
,
2451 const struct drm_i915_private
*dev_priv
= to_i915(state
->base
.plane
->dev
);
2452 const struct drm_framebuffer
*fb
= state
->base
.fb
;
2453 unsigned int rotation
= state
->base
.rotation
;
2454 int pitch
= intel_fb_pitch(fb
, plane
, rotation
);
2457 /* AUX_DIST needs only 4K alignment */
2458 if (fb
->pixel_format
== DRM_FORMAT_NV12
&& plane
== 1)
2461 alignment
= intel_surf_alignment(dev_priv
, fb
->modifier
[plane
]);
2463 return _intel_compute_tile_offset(dev_priv
, x
, y
, fb
, plane
, pitch
,
2464 rotation
, alignment
);
2467 /* Convert the fb->offset[] linear offset into x/y offsets */
2468 static void intel_fb_offset_to_xy(int *x
, int *y
,
2469 const struct drm_framebuffer
*fb
, int plane
)
2471 unsigned int cpp
= drm_format_plane_cpp(fb
->pixel_format
, plane
);
2472 unsigned int pitch
= fb
->pitches
[plane
];
2473 u32 linear_offset
= fb
->offsets
[plane
];
2475 *y
= linear_offset
/ pitch
;
2476 *x
= linear_offset
% pitch
/ cpp
;
2479 static unsigned int intel_fb_modifier_to_tiling(uint64_t fb_modifier
)
2481 switch (fb_modifier
) {
2482 case I915_FORMAT_MOD_X_TILED
:
2483 return I915_TILING_X
;
2484 case I915_FORMAT_MOD_Y_TILED
:
2485 return I915_TILING_Y
;
2487 return I915_TILING_NONE
;
2492 intel_fill_fb_info(struct drm_i915_private
*dev_priv
,
2493 struct drm_framebuffer
*fb
)
2495 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
2496 struct intel_rotation_info
*rot_info
= &intel_fb
->rot_info
;
2497 u32 gtt_offset_rotated
= 0;
2498 unsigned int max_size
= 0;
2499 uint32_t format
= fb
->pixel_format
;
2500 int i
, num_planes
= drm_format_num_planes(format
);
2501 unsigned int tile_size
= intel_tile_size(dev_priv
);
2503 for (i
= 0; i
< num_planes
; i
++) {
2504 unsigned int width
, height
;
2505 unsigned int cpp
, size
;
2509 cpp
= drm_format_plane_cpp(format
, i
);
2510 width
= drm_format_plane_width(fb
->width
, format
, i
);
2511 height
= drm_format_plane_height(fb
->height
, format
, i
);
2513 intel_fb_offset_to_xy(&x
, &y
, fb
, i
);
2516 * The fence (if used) is aligned to the start of the object
2517 * so having the framebuffer wrap around across the edge of the
2518 * fenced region doesn't really work. We have no API to configure
2519 * the fence start offset within the object (nor could we probably
2520 * on gen2/3). So it's just easier if we just require that the
2521 * fb layout agrees with the fence layout. We already check that the
2522 * fb stride matches the fence stride elsewhere.
2524 if (i915_gem_object_is_tiled(intel_fb
->obj
) &&
2525 (x
+ width
) * cpp
> fb
->pitches
[i
]) {
2526 DRM_DEBUG("bad fb plane %d offset: 0x%x\n",
2532 * First pixel of the framebuffer from
2533 * the start of the normal gtt mapping.
2535 intel_fb
->normal
[i
].x
= x
;
2536 intel_fb
->normal
[i
].y
= y
;
2538 offset
= _intel_compute_tile_offset(dev_priv
, &x
, &y
,
2539 fb
, 0, fb
->pitches
[i
],
2540 DRM_ROTATE_0
, tile_size
);
2541 offset
/= tile_size
;
2543 if (fb
->modifier
[i
] != DRM_FORMAT_MOD_NONE
) {
2544 unsigned int tile_width
, tile_height
;
2545 unsigned int pitch_tiles
;
2548 intel_tile_dims(dev_priv
, &tile_width
, &tile_height
,
2549 fb
->modifier
[i
], cpp
);
2551 rot_info
->plane
[i
].offset
= offset
;
2552 rot_info
->plane
[i
].stride
= DIV_ROUND_UP(fb
->pitches
[i
], tile_width
* cpp
);
2553 rot_info
->plane
[i
].width
= DIV_ROUND_UP(x
+ width
, tile_width
);
2554 rot_info
->plane
[i
].height
= DIV_ROUND_UP(y
+ height
, tile_height
);
2556 intel_fb
->rotated
[i
].pitch
=
2557 rot_info
->plane
[i
].height
* tile_height
;
2559 /* how many tiles does this plane need */
2560 size
= rot_info
->plane
[i
].stride
* rot_info
->plane
[i
].height
;
2562 * If the plane isn't horizontally tile aligned,
2563 * we need one more tile.
2568 /* rotate the x/y offsets to match the GTT view */
2574 rot_info
->plane
[i
].width
* tile_width
,
2575 rot_info
->plane
[i
].height
* tile_height
,
2580 /* rotate the tile dimensions to match the GTT view */
2581 pitch_tiles
= intel_fb
->rotated
[i
].pitch
/ tile_height
;
2582 swap(tile_width
, tile_height
);
2585 * We only keep the x/y offsets, so push all of the
2586 * gtt offset into the x/y offsets.
2588 _intel_adjust_tile_offset(&x
, &y
, tile_size
,
2589 tile_width
, tile_height
, pitch_tiles
,
2590 gtt_offset_rotated
* tile_size
, 0);
2592 gtt_offset_rotated
+= rot_info
->plane
[i
].width
* rot_info
->plane
[i
].height
;
2595 * First pixel of the framebuffer from
2596 * the start of the rotated gtt mapping.
2598 intel_fb
->rotated
[i
].x
= x
;
2599 intel_fb
->rotated
[i
].y
= y
;
2601 size
= DIV_ROUND_UP((y
+ height
) * fb
->pitches
[i
] +
2602 x
* cpp
, tile_size
);
2605 /* how many tiles in total needed in the bo */
2606 max_size
= max(max_size
, offset
+ size
);
2609 if (max_size
* tile_size
> to_intel_framebuffer(fb
)->obj
->base
.size
) {
2610 DRM_DEBUG("fb too big for bo (need %u bytes, have %zu bytes)\n",
2611 max_size
* tile_size
, to_intel_framebuffer(fb
)->obj
->base
.size
);
2618 static int i9xx_format_to_fourcc(int format
)
2621 case DISPPLANE_8BPP
:
2622 return DRM_FORMAT_C8
;
2623 case DISPPLANE_BGRX555
:
2624 return DRM_FORMAT_XRGB1555
;
2625 case DISPPLANE_BGRX565
:
2626 return DRM_FORMAT_RGB565
;
2628 case DISPPLANE_BGRX888
:
2629 return DRM_FORMAT_XRGB8888
;
2630 case DISPPLANE_RGBX888
:
2631 return DRM_FORMAT_XBGR8888
;
2632 case DISPPLANE_BGRX101010
:
2633 return DRM_FORMAT_XRGB2101010
;
2634 case DISPPLANE_RGBX101010
:
2635 return DRM_FORMAT_XBGR2101010
;
2639 static int skl_format_to_fourcc(int format
, bool rgb_order
, bool alpha
)
2642 case PLANE_CTL_FORMAT_RGB_565
:
2643 return DRM_FORMAT_RGB565
;
2645 case PLANE_CTL_FORMAT_XRGB_8888
:
2648 return DRM_FORMAT_ABGR8888
;
2650 return DRM_FORMAT_XBGR8888
;
2653 return DRM_FORMAT_ARGB8888
;
2655 return DRM_FORMAT_XRGB8888
;
2657 case PLANE_CTL_FORMAT_XRGB_2101010
:
2659 return DRM_FORMAT_XBGR2101010
;
2661 return DRM_FORMAT_XRGB2101010
;
2666 intel_alloc_initial_plane_obj(struct intel_crtc
*crtc
,
2667 struct intel_initial_plane_config
*plane_config
)
2669 struct drm_device
*dev
= crtc
->base
.dev
;
2670 struct drm_i915_private
*dev_priv
= to_i915(dev
);
2671 struct i915_ggtt
*ggtt
= &dev_priv
->ggtt
;
2672 struct drm_i915_gem_object
*obj
= NULL
;
2673 struct drm_mode_fb_cmd2 mode_cmd
= { 0 };
2674 struct drm_framebuffer
*fb
= &plane_config
->fb
->base
;
2675 u32 base_aligned
= round_down(plane_config
->base
, PAGE_SIZE
);
2676 u32 size_aligned
= round_up(plane_config
->base
+ plane_config
->size
,
2679 size_aligned
-= base_aligned
;
2681 if (plane_config
->size
== 0)
2684 /* If the FB is too big, just don't use it since fbdev is not very
2685 * important and we should probably use that space with FBC or other
2687 if (size_aligned
* 2 > ggtt
->stolen_usable_size
)
2690 mutex_lock(&dev
->struct_mutex
);
2692 obj
= i915_gem_object_create_stolen_for_preallocated(dev_priv
,
2697 mutex_unlock(&dev
->struct_mutex
);
2701 if (plane_config
->tiling
== I915_TILING_X
)
2702 obj
->tiling_and_stride
= fb
->pitches
[0] | I915_TILING_X
;
2704 mode_cmd
.pixel_format
= fb
->pixel_format
;
2705 mode_cmd
.width
= fb
->width
;
2706 mode_cmd
.height
= fb
->height
;
2707 mode_cmd
.pitches
[0] = fb
->pitches
[0];
2708 mode_cmd
.modifier
[0] = fb
->modifier
[0];
2709 mode_cmd
.flags
= DRM_MODE_FB_MODIFIERS
;
2711 if (intel_framebuffer_init(dev
, to_intel_framebuffer(fb
),
2713 DRM_DEBUG_KMS("intel fb init failed\n");
2717 mutex_unlock(&dev
->struct_mutex
);
2719 DRM_DEBUG_KMS("initial plane fb obj %p\n", obj
);
2723 i915_gem_object_put(obj
);
2724 mutex_unlock(&dev
->struct_mutex
);
2728 /* Update plane->state->fb to match plane->fb after driver-internal updates */
2730 update_state_fb(struct drm_plane
*plane
)
2732 if (plane
->fb
== plane
->state
->fb
)
2735 if (plane
->state
->fb
)
2736 drm_framebuffer_unreference(plane
->state
->fb
);
2737 plane
->state
->fb
= plane
->fb
;
2738 if (plane
->state
->fb
)
2739 drm_framebuffer_reference(plane
->state
->fb
);
2743 intel_find_initial_plane_obj(struct intel_crtc
*intel_crtc
,
2744 struct intel_initial_plane_config
*plane_config
)
2746 struct drm_device
*dev
= intel_crtc
->base
.dev
;
2747 struct drm_i915_private
*dev_priv
= to_i915(dev
);
2749 struct intel_crtc
*i
;
2750 struct drm_i915_gem_object
*obj
;
2751 struct drm_plane
*primary
= intel_crtc
->base
.primary
;
2752 struct drm_plane_state
*plane_state
= primary
->state
;
2753 struct drm_crtc_state
*crtc_state
= intel_crtc
->base
.state
;
2754 struct intel_plane
*intel_plane
= to_intel_plane(primary
);
2755 struct intel_plane_state
*intel_state
=
2756 to_intel_plane_state(plane_state
);
2757 struct drm_framebuffer
*fb
;
2759 if (!plane_config
->fb
)
2762 if (intel_alloc_initial_plane_obj(intel_crtc
, plane_config
)) {
2763 fb
= &plane_config
->fb
->base
;
2767 kfree(plane_config
->fb
);
2770 * Failed to alloc the obj, check to see if we should share
2771 * an fb with another CRTC instead
2773 for_each_crtc(dev
, c
) {
2774 i
= to_intel_crtc(c
);
2776 if (c
== &intel_crtc
->base
)
2782 fb
= c
->primary
->fb
;
2786 obj
= intel_fb_obj(fb
);
2787 if (i915_gem_object_ggtt_offset(obj
, NULL
) == plane_config
->base
) {
2788 drm_framebuffer_reference(fb
);
2794 * We've failed to reconstruct the BIOS FB. Current display state
2795 * indicates that the primary plane is visible, but has a NULL FB,
2796 * which will lead to problems later if we don't fix it up. The
2797 * simplest solution is to just disable the primary plane now and
2798 * pretend the BIOS never had it enabled.
2800 to_intel_plane_state(plane_state
)->base
.visible
= false;
2801 crtc_state
->plane_mask
&= ~(1 << drm_plane_index(primary
));
2802 intel_pre_disable_primary_noatomic(&intel_crtc
->base
);
2803 intel_plane
->disable_plane(primary
, &intel_crtc
->base
);
2808 plane_state
->src_x
= 0;
2809 plane_state
->src_y
= 0;
2810 plane_state
->src_w
= fb
->width
<< 16;
2811 plane_state
->src_h
= fb
->height
<< 16;
2813 plane_state
->crtc_x
= 0;
2814 plane_state
->crtc_y
= 0;
2815 plane_state
->crtc_w
= fb
->width
;
2816 plane_state
->crtc_h
= fb
->height
;
2818 intel_state
->base
.src
= drm_plane_state_src(plane_state
);
2819 intel_state
->base
.dst
= drm_plane_state_dest(plane_state
);
2821 obj
= intel_fb_obj(fb
);
2822 if (i915_gem_object_is_tiled(obj
))
2823 dev_priv
->preserve_bios_swizzle
= true;
2825 drm_framebuffer_reference(fb
);
2826 primary
->fb
= primary
->state
->fb
= fb
;
2827 primary
->crtc
= primary
->state
->crtc
= &intel_crtc
->base
;
2828 intel_crtc
->base
.state
->plane_mask
|= (1 << drm_plane_index(primary
));
2829 atomic_or(to_intel_plane(primary
)->frontbuffer_bit
,
2830 &obj
->frontbuffer_bits
);
2833 static int skl_max_plane_width(const struct drm_framebuffer
*fb
, int plane
,
2834 unsigned int rotation
)
2836 int cpp
= drm_format_plane_cpp(fb
->pixel_format
, plane
);
2838 switch (fb
->modifier
[plane
]) {
2839 case DRM_FORMAT_MOD_NONE
:
2840 case I915_FORMAT_MOD_X_TILED
:
2853 case I915_FORMAT_MOD_Y_TILED
:
2854 case I915_FORMAT_MOD_Yf_TILED
:
2869 MISSING_CASE(fb
->modifier
[plane
]);
2875 static int skl_check_main_surface(struct intel_plane_state
*plane_state
)
2877 const struct drm_i915_private
*dev_priv
= to_i915(plane_state
->base
.plane
->dev
);
2878 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
2879 unsigned int rotation
= plane_state
->base
.rotation
;
2880 int x
= plane_state
->base
.src
.x1
>> 16;
2881 int y
= plane_state
->base
.src
.y1
>> 16;
2882 int w
= drm_rect_width(&plane_state
->base
.src
) >> 16;
2883 int h
= drm_rect_height(&plane_state
->base
.src
) >> 16;
2884 int max_width
= skl_max_plane_width(fb
, 0, rotation
);
2885 int max_height
= 4096;
2886 u32 alignment
, offset
, aux_offset
= plane_state
->aux
.offset
;
2888 if (w
> max_width
|| h
> max_height
) {
2889 DRM_DEBUG_KMS("requested Y/RGB source size %dx%d too big (limit %dx%d)\n",
2890 w
, h
, max_width
, max_height
);
2894 intel_add_fb_offsets(&x
, &y
, plane_state
, 0);
2895 offset
= intel_compute_tile_offset(&x
, &y
, plane_state
, 0);
2897 alignment
= intel_surf_alignment(dev_priv
, fb
->modifier
[0]);
2900 * AUX surface offset is specified as the distance from the
2901 * main surface offset, and it must be non-negative. Make
2902 * sure that is what we will get.
2904 if (offset
> aux_offset
)
2905 offset
= intel_adjust_tile_offset(&x
, &y
, plane_state
, 0,
2906 offset
, aux_offset
& ~(alignment
- 1));
2909 * When using an X-tiled surface, the plane blows up
2910 * if the x offset + width exceed the stride.
2912 * TODO: linear and Y-tiled seem fine, Yf untested,
2914 if (fb
->modifier
[0] == I915_FORMAT_MOD_X_TILED
) {
2915 int cpp
= drm_format_plane_cpp(fb
->pixel_format
, 0);
2917 while ((x
+ w
) * cpp
> fb
->pitches
[0]) {
2919 DRM_DEBUG_KMS("Unable to find suitable display surface offset\n");
2923 offset
= intel_adjust_tile_offset(&x
, &y
, plane_state
, 0,
2924 offset
, offset
- alignment
);
2928 plane_state
->main
.offset
= offset
;
2929 plane_state
->main
.x
= x
;
2930 plane_state
->main
.y
= y
;
2935 static int skl_check_nv12_aux_surface(struct intel_plane_state
*plane_state
)
2937 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
2938 unsigned int rotation
= plane_state
->base
.rotation
;
2939 int max_width
= skl_max_plane_width(fb
, 1, rotation
);
2940 int max_height
= 4096;
2941 int x
= plane_state
->base
.src
.x1
>> 17;
2942 int y
= plane_state
->base
.src
.y1
>> 17;
2943 int w
= drm_rect_width(&plane_state
->base
.src
) >> 17;
2944 int h
= drm_rect_height(&plane_state
->base
.src
) >> 17;
2947 intel_add_fb_offsets(&x
, &y
, plane_state
, 1);
2948 offset
= intel_compute_tile_offset(&x
, &y
, plane_state
, 1);
2950 /* FIXME not quite sure how/if these apply to the chroma plane */
2951 if (w
> max_width
|| h
> max_height
) {
2952 DRM_DEBUG_KMS("CbCr source size %dx%d too big (limit %dx%d)\n",
2953 w
, h
, max_width
, max_height
);
2957 plane_state
->aux
.offset
= offset
;
2958 plane_state
->aux
.x
= x
;
2959 plane_state
->aux
.y
= y
;
2964 int skl_check_plane_surface(struct intel_plane_state
*plane_state
)
2966 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
2967 unsigned int rotation
= plane_state
->base
.rotation
;
2970 /* Rotate src coordinates to match rotated GTT view */
2971 if (drm_rotation_90_or_270(rotation
))
2972 drm_rect_rotate(&plane_state
->base
.src
,
2973 fb
->width
<< 16, fb
->height
<< 16,
2977 * Handle the AUX surface first since
2978 * the main surface setup depends on it.
2980 if (fb
->pixel_format
== DRM_FORMAT_NV12
) {
2981 ret
= skl_check_nv12_aux_surface(plane_state
);
2985 plane_state
->aux
.offset
= ~0xfff;
2986 plane_state
->aux
.x
= 0;
2987 plane_state
->aux
.y
= 0;
2990 ret
= skl_check_main_surface(plane_state
);
2997 static void i9xx_update_primary_plane(struct drm_plane
*primary
,
2998 const struct intel_crtc_state
*crtc_state
,
2999 const struct intel_plane_state
*plane_state
)
3001 struct drm_i915_private
*dev_priv
= to_i915(primary
->dev
);
3002 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
3003 struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
3004 int plane
= intel_crtc
->plane
;
3007 i915_reg_t reg
= DSPCNTR(plane
);
3008 unsigned int rotation
= plane_state
->base
.rotation
;
3009 int x
= plane_state
->base
.src
.x1
>> 16;
3010 int y
= plane_state
->base
.src
.y1
>> 16;
3012 dspcntr
= DISPPLANE_GAMMA_ENABLE
;
3014 dspcntr
|= DISPLAY_PLANE_ENABLE
;
3016 if (INTEL_GEN(dev_priv
) < 4) {
3017 if (intel_crtc
->pipe
== PIPE_B
)
3018 dspcntr
|= DISPPLANE_SEL_PIPE_B
;
3020 /* pipesrc and dspsize control the size that is scaled from,
3021 * which should always be the user's requested size.
3023 I915_WRITE(DSPSIZE(plane
),
3024 ((crtc_state
->pipe_src_h
- 1) << 16) |
3025 (crtc_state
->pipe_src_w
- 1));
3026 I915_WRITE(DSPPOS(plane
), 0);
3027 } else if (IS_CHERRYVIEW(dev_priv
) && plane
== PLANE_B
) {
3028 I915_WRITE(PRIMSIZE(plane
),
3029 ((crtc_state
->pipe_src_h
- 1) << 16) |
3030 (crtc_state
->pipe_src_w
- 1));
3031 I915_WRITE(PRIMPOS(plane
), 0);
3032 I915_WRITE(PRIMCNSTALPHA(plane
), 0);
3035 switch (fb
->pixel_format
) {
3037 dspcntr
|= DISPPLANE_8BPP
;
3039 case DRM_FORMAT_XRGB1555
:
3040 dspcntr
|= DISPPLANE_BGRX555
;
3042 case DRM_FORMAT_RGB565
:
3043 dspcntr
|= DISPPLANE_BGRX565
;
3045 case DRM_FORMAT_XRGB8888
:
3046 dspcntr
|= DISPPLANE_BGRX888
;
3048 case DRM_FORMAT_XBGR8888
:
3049 dspcntr
|= DISPPLANE_RGBX888
;
3051 case DRM_FORMAT_XRGB2101010
:
3052 dspcntr
|= DISPPLANE_BGRX101010
;
3054 case DRM_FORMAT_XBGR2101010
:
3055 dspcntr
|= DISPPLANE_RGBX101010
;
3061 if (INTEL_GEN(dev_priv
) >= 4 &&
3062 fb
->modifier
[0] == I915_FORMAT_MOD_X_TILED
)
3063 dspcntr
|= DISPPLANE_TILED
;
3065 if (rotation
& DRM_ROTATE_180
)
3066 dspcntr
|= DISPPLANE_ROTATE_180
;
3068 if (rotation
& DRM_REFLECT_X
)
3069 dspcntr
|= DISPPLANE_MIRROR
;
3071 if (IS_G4X(dev_priv
))
3072 dspcntr
|= DISPPLANE_TRICKLE_FEED_DISABLE
;
3074 intel_add_fb_offsets(&x
, &y
, plane_state
, 0);
3076 if (INTEL_GEN(dev_priv
) >= 4)
3077 intel_crtc
->dspaddr_offset
=
3078 intel_compute_tile_offset(&x
, &y
, plane_state
, 0);
3080 if (rotation
& DRM_ROTATE_180
) {
3081 x
+= crtc_state
->pipe_src_w
- 1;
3082 y
+= crtc_state
->pipe_src_h
- 1;
3083 } else if (rotation
& DRM_REFLECT_X
) {
3084 x
+= crtc_state
->pipe_src_w
- 1;
3087 linear_offset
= intel_fb_xy_to_linear(x
, y
, plane_state
, 0);
3089 if (INTEL_GEN(dev_priv
) < 4)
3090 intel_crtc
->dspaddr_offset
= linear_offset
;
3092 intel_crtc
->adjusted_x
= x
;
3093 intel_crtc
->adjusted_y
= y
;
3095 I915_WRITE(reg
, dspcntr
);
3097 I915_WRITE(DSPSTRIDE(plane
), fb
->pitches
[0]);
3098 if (INTEL_GEN(dev_priv
) >= 4) {
3099 I915_WRITE(DSPSURF(plane
),
3100 intel_fb_gtt_offset(fb
, rotation
) +
3101 intel_crtc
->dspaddr_offset
);
3102 I915_WRITE(DSPTILEOFF(plane
), (y
<< 16) | x
);
3103 I915_WRITE(DSPLINOFF(plane
), linear_offset
);
3105 I915_WRITE(DSPADDR(plane
),
3106 intel_fb_gtt_offset(fb
, rotation
) +
3107 intel_crtc
->dspaddr_offset
);
3112 static void i9xx_disable_primary_plane(struct drm_plane
*primary
,
3113 struct drm_crtc
*crtc
)
3115 struct drm_device
*dev
= crtc
->dev
;
3116 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3117 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3118 int plane
= intel_crtc
->plane
;
3120 I915_WRITE(DSPCNTR(plane
), 0);
3121 if (INTEL_INFO(dev_priv
)->gen
>= 4)
3122 I915_WRITE(DSPSURF(plane
), 0);
3124 I915_WRITE(DSPADDR(plane
), 0);
3125 POSTING_READ(DSPCNTR(plane
));
3128 static void ironlake_update_primary_plane(struct drm_plane
*primary
,
3129 const struct intel_crtc_state
*crtc_state
,
3130 const struct intel_plane_state
*plane_state
)
3132 struct drm_device
*dev
= primary
->dev
;
3133 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3134 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
3135 struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
3136 int plane
= intel_crtc
->plane
;
3139 i915_reg_t reg
= DSPCNTR(plane
);
3140 unsigned int rotation
= plane_state
->base
.rotation
;
3141 int x
= plane_state
->base
.src
.x1
>> 16;
3142 int y
= plane_state
->base
.src
.y1
>> 16;
3144 dspcntr
= DISPPLANE_GAMMA_ENABLE
;
3145 dspcntr
|= DISPLAY_PLANE_ENABLE
;
3147 if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
))
3148 dspcntr
|= DISPPLANE_PIPE_CSC_ENABLE
;
3150 switch (fb
->pixel_format
) {
3152 dspcntr
|= DISPPLANE_8BPP
;
3154 case DRM_FORMAT_RGB565
:
3155 dspcntr
|= DISPPLANE_BGRX565
;
3157 case DRM_FORMAT_XRGB8888
:
3158 dspcntr
|= DISPPLANE_BGRX888
;
3160 case DRM_FORMAT_XBGR8888
:
3161 dspcntr
|= DISPPLANE_RGBX888
;
3163 case DRM_FORMAT_XRGB2101010
:
3164 dspcntr
|= DISPPLANE_BGRX101010
;
3166 case DRM_FORMAT_XBGR2101010
:
3167 dspcntr
|= DISPPLANE_RGBX101010
;
3173 if (fb
->modifier
[0] == I915_FORMAT_MOD_X_TILED
)
3174 dspcntr
|= DISPPLANE_TILED
;
3176 if (rotation
& DRM_ROTATE_180
)
3177 dspcntr
|= DISPPLANE_ROTATE_180
;
3179 if (!IS_HASWELL(dev_priv
) && !IS_BROADWELL(dev_priv
))
3180 dspcntr
|= DISPPLANE_TRICKLE_FEED_DISABLE
;
3182 intel_add_fb_offsets(&x
, &y
, plane_state
, 0);
3184 intel_crtc
->dspaddr_offset
=
3185 intel_compute_tile_offset(&x
, &y
, plane_state
, 0);
3187 /* HSW+ does this automagically in hardware */
3188 if (!IS_HASWELL(dev_priv
) && !IS_BROADWELL(dev_priv
) &&
3189 rotation
& DRM_ROTATE_180
) {
3190 x
+= crtc_state
->pipe_src_w
- 1;
3191 y
+= crtc_state
->pipe_src_h
- 1;
3194 linear_offset
= intel_fb_xy_to_linear(x
, y
, plane_state
, 0);
3196 intel_crtc
->adjusted_x
= x
;
3197 intel_crtc
->adjusted_y
= y
;
3199 I915_WRITE(reg
, dspcntr
);
3201 I915_WRITE(DSPSTRIDE(plane
), fb
->pitches
[0]);
3202 I915_WRITE(DSPSURF(plane
),
3203 intel_fb_gtt_offset(fb
, rotation
) +
3204 intel_crtc
->dspaddr_offset
);
3205 if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
)) {
3206 I915_WRITE(DSPOFFSET(plane
), (y
<< 16) | x
);
3208 I915_WRITE(DSPTILEOFF(plane
), (y
<< 16) | x
);
3209 I915_WRITE(DSPLINOFF(plane
), linear_offset
);
3214 u32
intel_fb_stride_alignment(const struct drm_i915_private
*dev_priv
,
3215 uint64_t fb_modifier
, uint32_t pixel_format
)
3217 if (fb_modifier
== DRM_FORMAT_MOD_NONE
) {
3220 int cpp
= drm_format_plane_cpp(pixel_format
, 0);
3222 return intel_tile_width_bytes(dev_priv
, fb_modifier
, cpp
);
3226 u32
intel_fb_gtt_offset(struct drm_framebuffer
*fb
,
3227 unsigned int rotation
)
3229 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
3230 struct i915_ggtt_view view
;
3231 struct i915_vma
*vma
;
3233 intel_fill_fb_ggtt_view(&view
, fb
, rotation
);
3235 vma
= i915_gem_object_to_ggtt(obj
, &view
);
3236 if (WARN(!vma
, "ggtt vma for display object not found! (view=%u)\n",
3240 return i915_ggtt_offset(vma
);
3243 static void skl_detach_scaler(struct intel_crtc
*intel_crtc
, int id
)
3245 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3246 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3248 I915_WRITE(SKL_PS_CTRL(intel_crtc
->pipe
, id
), 0);
3249 I915_WRITE(SKL_PS_WIN_POS(intel_crtc
->pipe
, id
), 0);
3250 I915_WRITE(SKL_PS_WIN_SZ(intel_crtc
->pipe
, id
), 0);
3254 * This function detaches (aka. unbinds) unused scalers in hardware
3256 static void skl_detach_scalers(struct intel_crtc
*intel_crtc
)
3258 struct intel_crtc_scaler_state
*scaler_state
;
3261 scaler_state
= &intel_crtc
->config
->scaler_state
;
3263 /* loop through and disable scalers that aren't in use */
3264 for (i
= 0; i
< intel_crtc
->num_scalers
; i
++) {
3265 if (!scaler_state
->scalers
[i
].in_use
)
3266 skl_detach_scaler(intel_crtc
, i
);
3270 u32
skl_plane_stride(const struct drm_framebuffer
*fb
, int plane
,
3271 unsigned int rotation
)
3273 const struct drm_i915_private
*dev_priv
= to_i915(fb
->dev
);
3274 u32 stride
= intel_fb_pitch(fb
, plane
, rotation
);
3277 * The stride is either expressed as a multiple of 64 bytes chunks for
3278 * linear buffers or in number of tiles for tiled buffers.
3280 if (drm_rotation_90_or_270(rotation
)) {
3281 int cpp
= drm_format_plane_cpp(fb
->pixel_format
, plane
);
3283 stride
/= intel_tile_height(dev_priv
, fb
->modifier
[0], cpp
);
3285 stride
/= intel_fb_stride_alignment(dev_priv
, fb
->modifier
[0],
3292 u32
skl_plane_ctl_format(uint32_t pixel_format
)
3294 switch (pixel_format
) {
3296 return PLANE_CTL_FORMAT_INDEXED
;
3297 case DRM_FORMAT_RGB565
:
3298 return PLANE_CTL_FORMAT_RGB_565
;
3299 case DRM_FORMAT_XBGR8888
:
3300 return PLANE_CTL_FORMAT_XRGB_8888
| PLANE_CTL_ORDER_RGBX
;
3301 case DRM_FORMAT_XRGB8888
:
3302 return PLANE_CTL_FORMAT_XRGB_8888
;
3304 * XXX: For ARBG/ABGR formats we default to expecting scanout buffers
3305 * to be already pre-multiplied. We need to add a knob (or a different
3306 * DRM_FORMAT) for user-space to configure that.
3308 case DRM_FORMAT_ABGR8888
:
3309 return PLANE_CTL_FORMAT_XRGB_8888
| PLANE_CTL_ORDER_RGBX
|
3310 PLANE_CTL_ALPHA_SW_PREMULTIPLY
;
3311 case DRM_FORMAT_ARGB8888
:
3312 return PLANE_CTL_FORMAT_XRGB_8888
|
3313 PLANE_CTL_ALPHA_SW_PREMULTIPLY
;
3314 case DRM_FORMAT_XRGB2101010
:
3315 return PLANE_CTL_FORMAT_XRGB_2101010
;
3316 case DRM_FORMAT_XBGR2101010
:
3317 return PLANE_CTL_ORDER_RGBX
| PLANE_CTL_FORMAT_XRGB_2101010
;
3318 case DRM_FORMAT_YUYV
:
3319 return PLANE_CTL_FORMAT_YUV422
| PLANE_CTL_YUV422_YUYV
;
3320 case DRM_FORMAT_YVYU
:
3321 return PLANE_CTL_FORMAT_YUV422
| PLANE_CTL_YUV422_YVYU
;
3322 case DRM_FORMAT_UYVY
:
3323 return PLANE_CTL_FORMAT_YUV422
| PLANE_CTL_YUV422_UYVY
;
3324 case DRM_FORMAT_VYUY
:
3325 return PLANE_CTL_FORMAT_YUV422
| PLANE_CTL_YUV422_VYUY
;
3327 MISSING_CASE(pixel_format
);
3333 u32
skl_plane_ctl_tiling(uint64_t fb_modifier
)
3335 switch (fb_modifier
) {
3336 case DRM_FORMAT_MOD_NONE
:
3338 case I915_FORMAT_MOD_X_TILED
:
3339 return PLANE_CTL_TILED_X
;
3340 case I915_FORMAT_MOD_Y_TILED
:
3341 return PLANE_CTL_TILED_Y
;
3342 case I915_FORMAT_MOD_Yf_TILED
:
3343 return PLANE_CTL_TILED_YF
;
3345 MISSING_CASE(fb_modifier
);
3351 u32
skl_plane_ctl_rotation(unsigned int rotation
)
3357 * DRM_ROTATE_ is counter clockwise to stay compatible with Xrandr
3358 * while i915 HW rotation is clockwise, thats why this swapping.
3361 return PLANE_CTL_ROTATE_270
;
3362 case DRM_ROTATE_180
:
3363 return PLANE_CTL_ROTATE_180
;
3364 case DRM_ROTATE_270
:
3365 return PLANE_CTL_ROTATE_90
;
3367 MISSING_CASE(rotation
);
3373 static void skylake_update_primary_plane(struct drm_plane
*plane
,
3374 const struct intel_crtc_state
*crtc_state
,
3375 const struct intel_plane_state
*plane_state
)
3377 struct drm_device
*dev
= plane
->dev
;
3378 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3379 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
3380 struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
3381 enum plane_id plane_id
= to_intel_plane(plane
)->id
;
3382 enum pipe pipe
= to_intel_plane(plane
)->pipe
;
3384 unsigned int rotation
= plane_state
->base
.rotation
;
3385 u32 stride
= skl_plane_stride(fb
, 0, rotation
);
3386 u32 surf_addr
= plane_state
->main
.offset
;
3387 int scaler_id
= plane_state
->scaler_id
;
3388 int src_x
= plane_state
->main
.x
;
3389 int src_y
= plane_state
->main
.y
;
3390 int src_w
= drm_rect_width(&plane_state
->base
.src
) >> 16;
3391 int src_h
= drm_rect_height(&plane_state
->base
.src
) >> 16;
3392 int dst_x
= plane_state
->base
.dst
.x1
;
3393 int dst_y
= plane_state
->base
.dst
.y1
;
3394 int dst_w
= drm_rect_width(&plane_state
->base
.dst
);
3395 int dst_h
= drm_rect_height(&plane_state
->base
.dst
);
3397 plane_ctl
= PLANE_CTL_ENABLE
|
3398 PLANE_CTL_PIPE_GAMMA_ENABLE
|
3399 PLANE_CTL_PIPE_CSC_ENABLE
;
3401 plane_ctl
|= skl_plane_ctl_format(fb
->pixel_format
);
3402 plane_ctl
|= skl_plane_ctl_tiling(fb
->modifier
[0]);
3403 plane_ctl
|= PLANE_CTL_PLANE_GAMMA_DISABLE
;
3404 plane_ctl
|= skl_plane_ctl_rotation(rotation
);
3406 /* Sizes are 0 based */
3412 intel_crtc
->dspaddr_offset
= surf_addr
;
3414 intel_crtc
->adjusted_x
= src_x
;
3415 intel_crtc
->adjusted_y
= src_y
;
3417 I915_WRITE(PLANE_CTL(pipe
, plane_id
), plane_ctl
);
3418 I915_WRITE(PLANE_OFFSET(pipe
, plane_id
), (src_y
<< 16) | src_x
);
3419 I915_WRITE(PLANE_STRIDE(pipe
, plane_id
), stride
);
3420 I915_WRITE(PLANE_SIZE(pipe
, plane_id
), (src_h
<< 16) | src_w
);
3422 if (scaler_id
>= 0) {
3423 uint32_t ps_ctrl
= 0;
3425 WARN_ON(!dst_w
|| !dst_h
);
3426 ps_ctrl
= PS_SCALER_EN
| PS_PLANE_SEL(plane_id
) |
3427 crtc_state
->scaler_state
.scalers
[scaler_id
].mode
;
3428 I915_WRITE(SKL_PS_CTRL(pipe
, scaler_id
), ps_ctrl
);
3429 I915_WRITE(SKL_PS_PWR_GATE(pipe
, scaler_id
), 0);
3430 I915_WRITE(SKL_PS_WIN_POS(pipe
, scaler_id
), (dst_x
<< 16) | dst_y
);
3431 I915_WRITE(SKL_PS_WIN_SZ(pipe
, scaler_id
), (dst_w
<< 16) | dst_h
);
3432 I915_WRITE(PLANE_POS(pipe
, plane_id
), 0);
3434 I915_WRITE(PLANE_POS(pipe
, plane_id
), (dst_y
<< 16) | dst_x
);
3437 I915_WRITE(PLANE_SURF(pipe
, plane_id
),
3438 intel_fb_gtt_offset(fb
, rotation
) + surf_addr
);
3440 POSTING_READ(PLANE_SURF(pipe
, plane_id
));
3443 static void skylake_disable_primary_plane(struct drm_plane
*primary
,
3444 struct drm_crtc
*crtc
)
3446 struct drm_device
*dev
= crtc
->dev
;
3447 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3448 enum plane_id plane_id
= to_intel_plane(primary
)->id
;
3449 enum pipe pipe
= to_intel_plane(primary
)->pipe
;
3451 I915_WRITE(PLANE_CTL(pipe
, plane_id
), 0);
3452 I915_WRITE(PLANE_SURF(pipe
, plane_id
), 0);
3453 POSTING_READ(PLANE_SURF(pipe
, plane_id
));
3456 /* Assume fb object is pinned & idle & fenced and just update base pointers */
3458 intel_pipe_set_base_atomic(struct drm_crtc
*crtc
, struct drm_framebuffer
*fb
,
3459 int x
, int y
, enum mode_set_atomic state
)
3461 /* Support for kgdboc is disabled, this needs a major rework. */
3462 DRM_ERROR("legacy panic handler not supported any more.\n");
3467 static void intel_complete_page_flips(struct drm_i915_private
*dev_priv
)
3469 struct intel_crtc
*crtc
;
3471 for_each_intel_crtc(&dev_priv
->drm
, crtc
)
3472 intel_finish_page_flip_cs(dev_priv
, crtc
->pipe
);
3475 static void intel_update_primary_planes(struct drm_device
*dev
)
3477 struct drm_crtc
*crtc
;
3479 for_each_crtc(dev
, crtc
) {
3480 struct intel_plane
*plane
= to_intel_plane(crtc
->primary
);
3481 struct intel_plane_state
*plane_state
=
3482 to_intel_plane_state(plane
->base
.state
);
3484 if (plane_state
->base
.visible
)
3485 plane
->update_plane(&plane
->base
,
3486 to_intel_crtc_state(crtc
->state
),
3492 __intel_display_resume(struct drm_device
*dev
,
3493 struct drm_atomic_state
*state
)
3495 struct drm_crtc_state
*crtc_state
;
3496 struct drm_crtc
*crtc
;
3499 intel_modeset_setup_hw_state(dev
);
3500 i915_redisable_vga(to_i915(dev
));
3505 for_each_crtc_in_state(state
, crtc
, crtc_state
, i
) {
3507 * Force recalculation even if we restore
3508 * current state. With fast modeset this may not result
3509 * in a modeset when the state is compatible.
3511 crtc_state
->mode_changed
= true;
3514 /* ignore any reset values/BIOS leftovers in the WM registers */
3515 to_intel_atomic_state(state
)->skip_intermediate_wm
= true;
3517 ret
= drm_atomic_commit(state
);
3519 WARN_ON(ret
== -EDEADLK
);
3523 static bool gpu_reset_clobbers_display(struct drm_i915_private
*dev_priv
)
3525 return intel_has_gpu_reset(dev_priv
) &&
3526 INTEL_GEN(dev_priv
) < 5 && !IS_G4X(dev_priv
);
3529 void intel_prepare_reset(struct drm_i915_private
*dev_priv
)
3531 struct drm_device
*dev
= &dev_priv
->drm
;
3532 struct drm_modeset_acquire_ctx
*ctx
= &dev_priv
->reset_ctx
;
3533 struct drm_atomic_state
*state
;
3537 * Need mode_config.mutex so that we don't
3538 * trample ongoing ->detect() and whatnot.
3540 mutex_lock(&dev
->mode_config
.mutex
);
3541 drm_modeset_acquire_init(ctx
, 0);
3543 ret
= drm_modeset_lock_all_ctx(dev
, ctx
);
3544 if (ret
!= -EDEADLK
)
3547 drm_modeset_backoff(ctx
);
3550 /* reset doesn't touch the display, but flips might get nuked anyway, */
3551 if (!i915
.force_reset_modeset_test
&&
3552 !gpu_reset_clobbers_display(dev_priv
))
3556 * Disabling the crtcs gracefully seems nicer. Also the
3557 * g33 docs say we should at least disable all the planes.
3559 state
= drm_atomic_helper_duplicate_state(dev
, ctx
);
3560 if (IS_ERR(state
)) {
3561 ret
= PTR_ERR(state
);
3563 DRM_ERROR("Duplicating state failed with %i\n", ret
);
3567 ret
= drm_atomic_helper_disable_all(dev
, ctx
);
3569 DRM_ERROR("Suspending crtc's failed with %i\n", ret
);
3573 dev_priv
->modeset_restore_state
= state
;
3574 state
->acquire_ctx
= ctx
;
3578 drm_atomic_state_put(state
);
3581 void intel_finish_reset(struct drm_i915_private
*dev_priv
)
3583 struct drm_device
*dev
= &dev_priv
->drm
;
3584 struct drm_modeset_acquire_ctx
*ctx
= &dev_priv
->reset_ctx
;
3585 struct drm_atomic_state
*state
= dev_priv
->modeset_restore_state
;
3589 * Flips in the rings will be nuked by the reset,
3590 * so complete all pending flips so that user space
3591 * will get its events and not get stuck.
3593 intel_complete_page_flips(dev_priv
);
3595 dev_priv
->modeset_restore_state
= NULL
;
3597 /* reset doesn't touch the display */
3598 if (!gpu_reset_clobbers_display(dev_priv
)) {
3601 * Flips in the rings have been nuked by the reset,
3602 * so update the base address of all primary
3603 * planes to the the last fb to make sure we're
3604 * showing the correct fb after a reset.
3606 * FIXME: Atomic will make this obsolete since we won't schedule
3607 * CS-based flips (which might get lost in gpu resets) any more.
3609 intel_update_primary_planes(dev
);
3611 ret
= __intel_display_resume(dev
, state
);
3613 DRM_ERROR("Restoring old state failed with %i\n", ret
);
3617 * The display has been reset as well,
3618 * so need a full re-initialization.
3620 intel_runtime_pm_disable_interrupts(dev_priv
);
3621 intel_runtime_pm_enable_interrupts(dev_priv
);
3623 intel_pps_unlock_regs_wa(dev_priv
);
3624 intel_modeset_init_hw(dev
);
3626 spin_lock_irq(&dev_priv
->irq_lock
);
3627 if (dev_priv
->display
.hpd_irq_setup
)
3628 dev_priv
->display
.hpd_irq_setup(dev_priv
);
3629 spin_unlock_irq(&dev_priv
->irq_lock
);
3631 ret
= __intel_display_resume(dev
, state
);
3633 DRM_ERROR("Restoring old state failed with %i\n", ret
);
3635 intel_hpd_init(dev_priv
);
3639 drm_atomic_state_put(state
);
3640 drm_modeset_drop_locks(ctx
);
3641 drm_modeset_acquire_fini(ctx
);
3642 mutex_unlock(&dev
->mode_config
.mutex
);
3645 static bool abort_flip_on_reset(struct intel_crtc
*crtc
)
3647 struct i915_gpu_error
*error
= &to_i915(crtc
->base
.dev
)->gpu_error
;
3649 if (i915_reset_in_progress(error
))
3652 if (crtc
->reset_count
!= i915_reset_count(error
))
3658 static bool intel_crtc_has_pending_flip(struct drm_crtc
*crtc
)
3660 struct drm_device
*dev
= crtc
->dev
;
3661 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3664 if (abort_flip_on_reset(intel_crtc
))
3667 spin_lock_irq(&dev
->event_lock
);
3668 pending
= to_intel_crtc(crtc
)->flip_work
!= NULL
;
3669 spin_unlock_irq(&dev
->event_lock
);
3674 static void intel_update_pipe_config(struct intel_crtc
*crtc
,
3675 struct intel_crtc_state
*old_crtc_state
)
3677 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
3678 struct intel_crtc_state
*pipe_config
=
3679 to_intel_crtc_state(crtc
->base
.state
);
3681 /* drm_atomic_helper_update_legacy_modeset_state might not be called. */
3682 crtc
->base
.mode
= crtc
->base
.state
->mode
;
3684 DRM_DEBUG_KMS("Updating pipe size %ix%i -> %ix%i\n",
3685 old_crtc_state
->pipe_src_w
, old_crtc_state
->pipe_src_h
,
3686 pipe_config
->pipe_src_w
, pipe_config
->pipe_src_h
);
3689 * Update pipe size and adjust fitter if needed: the reason for this is
3690 * that in compute_mode_changes we check the native mode (not the pfit
3691 * mode) to see if we can flip rather than do a full mode set. In the
3692 * fastboot case, we'll flip, but if we don't update the pipesrc and
3693 * pfit state, we'll end up with a big fb scanned out into the wrong
3697 I915_WRITE(PIPESRC(crtc
->pipe
),
3698 ((pipe_config
->pipe_src_w
- 1) << 16) |
3699 (pipe_config
->pipe_src_h
- 1));
3701 /* on skylake this is done by detaching scalers */
3702 if (INTEL_GEN(dev_priv
) >= 9) {
3703 skl_detach_scalers(crtc
);
3705 if (pipe_config
->pch_pfit
.enabled
)
3706 skylake_pfit_enable(crtc
);
3707 } else if (HAS_PCH_SPLIT(dev_priv
)) {
3708 if (pipe_config
->pch_pfit
.enabled
)
3709 ironlake_pfit_enable(crtc
);
3710 else if (old_crtc_state
->pch_pfit
.enabled
)
3711 ironlake_pfit_disable(crtc
, true);
3715 static void intel_fdi_normal_train(struct drm_crtc
*crtc
)
3717 struct drm_device
*dev
= crtc
->dev
;
3718 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3719 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3720 int pipe
= intel_crtc
->pipe
;
3724 /* enable normal train */
3725 reg
= FDI_TX_CTL(pipe
);
3726 temp
= I915_READ(reg
);
3727 if (IS_IVYBRIDGE(dev_priv
)) {
3728 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
3729 temp
|= FDI_LINK_TRAIN_NONE_IVB
| FDI_TX_ENHANCE_FRAME_ENABLE
;
3731 temp
&= ~FDI_LINK_TRAIN_NONE
;
3732 temp
|= FDI_LINK_TRAIN_NONE
| FDI_TX_ENHANCE_FRAME_ENABLE
;
3734 I915_WRITE(reg
, temp
);
3736 reg
= FDI_RX_CTL(pipe
);
3737 temp
= I915_READ(reg
);
3738 if (HAS_PCH_CPT(dev_priv
)) {
3739 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3740 temp
|= FDI_LINK_TRAIN_NORMAL_CPT
;
3742 temp
&= ~FDI_LINK_TRAIN_NONE
;
3743 temp
|= FDI_LINK_TRAIN_NONE
;
3745 I915_WRITE(reg
, temp
| FDI_RX_ENHANCE_FRAME_ENABLE
);
3747 /* wait one idle pattern time */
3751 /* IVB wants error correction enabled */
3752 if (IS_IVYBRIDGE(dev_priv
))
3753 I915_WRITE(reg
, I915_READ(reg
) | FDI_FS_ERRC_ENABLE
|
3754 FDI_FE_ERRC_ENABLE
);
3757 /* The FDI link training functions for ILK/Ibexpeak. */
3758 static void ironlake_fdi_link_train(struct drm_crtc
*crtc
)
3760 struct drm_device
*dev
= crtc
->dev
;
3761 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3762 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3763 int pipe
= intel_crtc
->pipe
;
3767 /* FDI needs bits from pipe first */
3768 assert_pipe_enabled(dev_priv
, pipe
);
3770 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3772 reg
= FDI_RX_IMR(pipe
);
3773 temp
= I915_READ(reg
);
3774 temp
&= ~FDI_RX_SYMBOL_LOCK
;
3775 temp
&= ~FDI_RX_BIT_LOCK
;
3776 I915_WRITE(reg
, temp
);
3780 /* enable CPU FDI TX and PCH FDI RX */
3781 reg
= FDI_TX_CTL(pipe
);
3782 temp
= I915_READ(reg
);
3783 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
3784 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
->fdi_lanes
);
3785 temp
&= ~FDI_LINK_TRAIN_NONE
;
3786 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3787 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
3789 reg
= FDI_RX_CTL(pipe
);
3790 temp
= I915_READ(reg
);
3791 temp
&= ~FDI_LINK_TRAIN_NONE
;
3792 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3793 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
3798 /* Ironlake workaround, enable clock pointer after FDI enable*/
3799 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
3800 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
|
3801 FDI_RX_PHASE_SYNC_POINTER_EN
);
3803 reg
= FDI_RX_IIR(pipe
);
3804 for (tries
= 0; tries
< 5; tries
++) {
3805 temp
= I915_READ(reg
);
3806 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3808 if ((temp
& FDI_RX_BIT_LOCK
)) {
3809 DRM_DEBUG_KMS("FDI train 1 done.\n");
3810 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
3815 DRM_ERROR("FDI train 1 fail!\n");
3818 reg
= FDI_TX_CTL(pipe
);
3819 temp
= I915_READ(reg
);
3820 temp
&= ~FDI_LINK_TRAIN_NONE
;
3821 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3822 I915_WRITE(reg
, temp
);
3824 reg
= FDI_RX_CTL(pipe
);
3825 temp
= I915_READ(reg
);
3826 temp
&= ~FDI_LINK_TRAIN_NONE
;
3827 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3828 I915_WRITE(reg
, temp
);
3833 reg
= FDI_RX_IIR(pipe
);
3834 for (tries
= 0; tries
< 5; tries
++) {
3835 temp
= I915_READ(reg
);
3836 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3838 if (temp
& FDI_RX_SYMBOL_LOCK
) {
3839 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3840 DRM_DEBUG_KMS("FDI train 2 done.\n");
3845 DRM_ERROR("FDI train 2 fail!\n");
3847 DRM_DEBUG_KMS("FDI train done\n");
3851 static const int snb_b_fdi_train_param
[] = {
3852 FDI_LINK_TRAIN_400MV_0DB_SNB_B
,
3853 FDI_LINK_TRAIN_400MV_6DB_SNB_B
,
3854 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B
,
3855 FDI_LINK_TRAIN_800MV_0DB_SNB_B
,
3858 /* The FDI link training functions for SNB/Cougarpoint. */
3859 static void gen6_fdi_link_train(struct drm_crtc
*crtc
)
3861 struct drm_device
*dev
= crtc
->dev
;
3862 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3863 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3864 int pipe
= intel_crtc
->pipe
;
3868 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3870 reg
= FDI_RX_IMR(pipe
);
3871 temp
= I915_READ(reg
);
3872 temp
&= ~FDI_RX_SYMBOL_LOCK
;
3873 temp
&= ~FDI_RX_BIT_LOCK
;
3874 I915_WRITE(reg
, temp
);
3879 /* enable CPU FDI TX and PCH FDI RX */
3880 reg
= FDI_TX_CTL(pipe
);
3881 temp
= I915_READ(reg
);
3882 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
3883 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
->fdi_lanes
);
3884 temp
&= ~FDI_LINK_TRAIN_NONE
;
3885 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3886 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3888 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
3889 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
3891 I915_WRITE(FDI_RX_MISC(pipe
),
3892 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
3894 reg
= FDI_RX_CTL(pipe
);
3895 temp
= I915_READ(reg
);
3896 if (HAS_PCH_CPT(dev_priv
)) {
3897 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3898 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
3900 temp
&= ~FDI_LINK_TRAIN_NONE
;
3901 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3903 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
3908 for (i
= 0; i
< 4; i
++) {
3909 reg
= FDI_TX_CTL(pipe
);
3910 temp
= I915_READ(reg
);
3911 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3912 temp
|= snb_b_fdi_train_param
[i
];
3913 I915_WRITE(reg
, temp
);
3918 for (retry
= 0; retry
< 5; retry
++) {
3919 reg
= FDI_RX_IIR(pipe
);
3920 temp
= I915_READ(reg
);
3921 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3922 if (temp
& FDI_RX_BIT_LOCK
) {
3923 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
3924 DRM_DEBUG_KMS("FDI train 1 done.\n");
3933 DRM_ERROR("FDI train 1 fail!\n");
3936 reg
= FDI_TX_CTL(pipe
);
3937 temp
= I915_READ(reg
);
3938 temp
&= ~FDI_LINK_TRAIN_NONE
;
3939 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3940 if (IS_GEN6(dev_priv
)) {
3941 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3943 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
3945 I915_WRITE(reg
, temp
);
3947 reg
= FDI_RX_CTL(pipe
);
3948 temp
= I915_READ(reg
);
3949 if (HAS_PCH_CPT(dev_priv
)) {
3950 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3951 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
3953 temp
&= ~FDI_LINK_TRAIN_NONE
;
3954 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3956 I915_WRITE(reg
, temp
);
3961 for (i
= 0; i
< 4; i
++) {
3962 reg
= FDI_TX_CTL(pipe
);
3963 temp
= I915_READ(reg
);
3964 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3965 temp
|= snb_b_fdi_train_param
[i
];
3966 I915_WRITE(reg
, temp
);
3971 for (retry
= 0; retry
< 5; retry
++) {
3972 reg
= FDI_RX_IIR(pipe
);
3973 temp
= I915_READ(reg
);
3974 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3975 if (temp
& FDI_RX_SYMBOL_LOCK
) {
3976 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3977 DRM_DEBUG_KMS("FDI train 2 done.\n");
3986 DRM_ERROR("FDI train 2 fail!\n");
3988 DRM_DEBUG_KMS("FDI train done.\n");
3991 /* Manual link training for Ivy Bridge A0 parts */
3992 static void ivb_manual_fdi_link_train(struct drm_crtc
*crtc
)
3994 struct drm_device
*dev
= crtc
->dev
;
3995 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3996 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3997 int pipe
= intel_crtc
->pipe
;
4001 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
4003 reg
= FDI_RX_IMR(pipe
);
4004 temp
= I915_READ(reg
);
4005 temp
&= ~FDI_RX_SYMBOL_LOCK
;
4006 temp
&= ~FDI_RX_BIT_LOCK
;
4007 I915_WRITE(reg
, temp
);
4012 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
4013 I915_READ(FDI_RX_IIR(pipe
)));
4015 /* Try each vswing and preemphasis setting twice before moving on */
4016 for (j
= 0; j
< ARRAY_SIZE(snb_b_fdi_train_param
) * 2; j
++) {
4017 /* disable first in case we need to retry */
4018 reg
= FDI_TX_CTL(pipe
);
4019 temp
= I915_READ(reg
);
4020 temp
&= ~(FDI_LINK_TRAIN_AUTO
| FDI_LINK_TRAIN_NONE_IVB
);
4021 temp
&= ~FDI_TX_ENABLE
;
4022 I915_WRITE(reg
, temp
);
4024 reg
= FDI_RX_CTL(pipe
);
4025 temp
= I915_READ(reg
);
4026 temp
&= ~FDI_LINK_TRAIN_AUTO
;
4027 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
4028 temp
&= ~FDI_RX_ENABLE
;
4029 I915_WRITE(reg
, temp
);
4031 /* enable CPU FDI TX and PCH FDI RX */
4032 reg
= FDI_TX_CTL(pipe
);
4033 temp
= I915_READ(reg
);
4034 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
4035 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
->fdi_lanes
);
4036 temp
|= FDI_LINK_TRAIN_PATTERN_1_IVB
;
4037 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
4038 temp
|= snb_b_fdi_train_param
[j
/2];
4039 temp
|= FDI_COMPOSITE_SYNC
;
4040 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
4042 I915_WRITE(FDI_RX_MISC(pipe
),
4043 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
4045 reg
= FDI_RX_CTL(pipe
);
4046 temp
= I915_READ(reg
);
4047 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
4048 temp
|= FDI_COMPOSITE_SYNC
;
4049 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
4052 udelay(1); /* should be 0.5us */
4054 for (i
= 0; i
< 4; i
++) {
4055 reg
= FDI_RX_IIR(pipe
);
4056 temp
= I915_READ(reg
);
4057 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
4059 if (temp
& FDI_RX_BIT_LOCK
||
4060 (I915_READ(reg
) & FDI_RX_BIT_LOCK
)) {
4061 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
4062 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n",
4066 udelay(1); /* should be 0.5us */
4069 DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j
/ 2);
4074 reg
= FDI_TX_CTL(pipe
);
4075 temp
= I915_READ(reg
);
4076 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
4077 temp
|= FDI_LINK_TRAIN_PATTERN_2_IVB
;
4078 I915_WRITE(reg
, temp
);
4080 reg
= FDI_RX_CTL(pipe
);
4081 temp
= I915_READ(reg
);
4082 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
4083 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
4084 I915_WRITE(reg
, temp
);
4087 udelay(2); /* should be 1.5us */
4089 for (i
= 0; i
< 4; i
++) {
4090 reg
= FDI_RX_IIR(pipe
);
4091 temp
= I915_READ(reg
);
4092 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
4094 if (temp
& FDI_RX_SYMBOL_LOCK
||
4095 (I915_READ(reg
) & FDI_RX_SYMBOL_LOCK
)) {
4096 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
4097 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n",
4101 udelay(2); /* should be 1.5us */
4104 DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j
/ 2);
4108 DRM_DEBUG_KMS("FDI train done.\n");
4111 static void ironlake_fdi_pll_enable(struct intel_crtc
*intel_crtc
)
4113 struct drm_device
*dev
= intel_crtc
->base
.dev
;
4114 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4115 int pipe
= intel_crtc
->pipe
;
4119 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
4120 reg
= FDI_RX_CTL(pipe
);
4121 temp
= I915_READ(reg
);
4122 temp
&= ~(FDI_DP_PORT_WIDTH_MASK
| (0x7 << 16));
4123 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
->fdi_lanes
);
4124 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
4125 I915_WRITE(reg
, temp
| FDI_RX_PLL_ENABLE
);
4130 /* Switch from Rawclk to PCDclk */
4131 temp
= I915_READ(reg
);
4132 I915_WRITE(reg
, temp
| FDI_PCDCLK
);
4137 /* Enable CPU FDI TX PLL, always on for Ironlake */
4138 reg
= FDI_TX_CTL(pipe
);
4139 temp
= I915_READ(reg
);
4140 if ((temp
& FDI_TX_PLL_ENABLE
) == 0) {
4141 I915_WRITE(reg
, temp
| FDI_TX_PLL_ENABLE
);
4148 static void ironlake_fdi_pll_disable(struct intel_crtc
*intel_crtc
)
4150 struct drm_device
*dev
= intel_crtc
->base
.dev
;
4151 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4152 int pipe
= intel_crtc
->pipe
;
4156 /* Switch from PCDclk to Rawclk */
4157 reg
= FDI_RX_CTL(pipe
);
4158 temp
= I915_READ(reg
);
4159 I915_WRITE(reg
, temp
& ~FDI_PCDCLK
);
4161 /* Disable CPU FDI TX PLL */
4162 reg
= FDI_TX_CTL(pipe
);
4163 temp
= I915_READ(reg
);
4164 I915_WRITE(reg
, temp
& ~FDI_TX_PLL_ENABLE
);
4169 reg
= FDI_RX_CTL(pipe
);
4170 temp
= I915_READ(reg
);
4171 I915_WRITE(reg
, temp
& ~FDI_RX_PLL_ENABLE
);
4173 /* Wait for the clocks to turn off. */
4178 static void ironlake_fdi_disable(struct drm_crtc
*crtc
)
4180 struct drm_device
*dev
= crtc
->dev
;
4181 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4182 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4183 int pipe
= intel_crtc
->pipe
;
4187 /* disable CPU FDI tx and PCH FDI rx */
4188 reg
= FDI_TX_CTL(pipe
);
4189 temp
= I915_READ(reg
);
4190 I915_WRITE(reg
, temp
& ~FDI_TX_ENABLE
);
4193 reg
= FDI_RX_CTL(pipe
);
4194 temp
= I915_READ(reg
);
4195 temp
&= ~(0x7 << 16);
4196 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
4197 I915_WRITE(reg
, temp
& ~FDI_RX_ENABLE
);
4202 /* Ironlake workaround, disable clock pointer after downing FDI */
4203 if (HAS_PCH_IBX(dev_priv
))
4204 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
4206 /* still set train pattern 1 */
4207 reg
= FDI_TX_CTL(pipe
);
4208 temp
= I915_READ(reg
);
4209 temp
&= ~FDI_LINK_TRAIN_NONE
;
4210 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
4211 I915_WRITE(reg
, temp
);
4213 reg
= FDI_RX_CTL(pipe
);
4214 temp
= I915_READ(reg
);
4215 if (HAS_PCH_CPT(dev_priv
)) {
4216 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
4217 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
4219 temp
&= ~FDI_LINK_TRAIN_NONE
;
4220 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
4222 /* BPC in FDI rx is consistent with that in PIPECONF */
4223 temp
&= ~(0x07 << 16);
4224 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
4225 I915_WRITE(reg
, temp
);
4231 bool intel_has_pending_fb_unpin(struct drm_i915_private
*dev_priv
)
4233 struct intel_crtc
*crtc
;
4235 /* Note that we don't need to be called with mode_config.lock here
4236 * as our list of CRTC objects is static for the lifetime of the
4237 * device and so cannot disappear as we iterate. Similarly, we can
4238 * happily treat the predicates as racy, atomic checks as userspace
4239 * cannot claim and pin a new fb without at least acquring the
4240 * struct_mutex and so serialising with us.
4242 for_each_intel_crtc(&dev_priv
->drm
, crtc
) {
4243 if (atomic_read(&crtc
->unpin_work_count
) == 0)
4246 if (crtc
->flip_work
)
4247 intel_wait_for_vblank(dev_priv
, crtc
->pipe
);
4255 static void page_flip_completed(struct intel_crtc
*intel_crtc
)
4257 struct drm_i915_private
*dev_priv
= to_i915(intel_crtc
->base
.dev
);
4258 struct intel_flip_work
*work
= intel_crtc
->flip_work
;
4260 intel_crtc
->flip_work
= NULL
;
4263 drm_crtc_send_vblank_event(&intel_crtc
->base
, work
->event
);
4265 drm_crtc_vblank_put(&intel_crtc
->base
);
4267 wake_up_all(&dev_priv
->pending_flip_queue
);
4268 queue_work(dev_priv
->wq
, &work
->unpin_work
);
4270 trace_i915_flip_complete(intel_crtc
->plane
,
4271 work
->pending_flip_obj
);
4274 static int intel_crtc_wait_for_pending_flips(struct drm_crtc
*crtc
)
4276 struct drm_device
*dev
= crtc
->dev
;
4277 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4280 WARN_ON(waitqueue_active(&dev_priv
->pending_flip_queue
));
4282 ret
= wait_event_interruptible_timeout(
4283 dev_priv
->pending_flip_queue
,
4284 !intel_crtc_has_pending_flip(crtc
),
4291 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4292 struct intel_flip_work
*work
;
4294 spin_lock_irq(&dev
->event_lock
);
4295 work
= intel_crtc
->flip_work
;
4296 if (work
&& !is_mmio_work(work
)) {
4297 WARN_ONCE(1, "Removing stuck page flip\n");
4298 page_flip_completed(intel_crtc
);
4300 spin_unlock_irq(&dev
->event_lock
);
4306 void lpt_disable_iclkip(struct drm_i915_private
*dev_priv
)
4310 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_GATE
);
4312 mutex_lock(&dev_priv
->sb_lock
);
4314 temp
= intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
);
4315 temp
|= SBI_SSCCTL_DISABLE
;
4316 intel_sbi_write(dev_priv
, SBI_SSCCTL6
, temp
, SBI_ICLK
);
4318 mutex_unlock(&dev_priv
->sb_lock
);
4321 /* Program iCLKIP clock to the desired frequency */
4322 static void lpt_program_iclkip(struct drm_crtc
*crtc
)
4324 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
4325 int clock
= to_intel_crtc(crtc
)->config
->base
.adjusted_mode
.crtc_clock
;
4326 u32 divsel
, phaseinc
, auxdiv
, phasedir
= 0;
4329 lpt_disable_iclkip(dev_priv
);
4331 /* The iCLK virtual clock root frequency is in MHz,
4332 * but the adjusted_mode->crtc_clock in in KHz. To get the
4333 * divisors, it is necessary to divide one by another, so we
4334 * convert the virtual clock precision to KHz here for higher
4337 for (auxdiv
= 0; auxdiv
< 2; auxdiv
++) {
4338 u32 iclk_virtual_root_freq
= 172800 * 1000;
4339 u32 iclk_pi_range
= 64;
4340 u32 desired_divisor
;
4342 desired_divisor
= DIV_ROUND_CLOSEST(iclk_virtual_root_freq
,
4344 divsel
= (desired_divisor
/ iclk_pi_range
) - 2;
4345 phaseinc
= desired_divisor
% iclk_pi_range
;
4348 * Near 20MHz is a corner case which is
4349 * out of range for the 7-bit divisor
4355 /* This should not happen with any sane values */
4356 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel
) &
4357 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
);
4358 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir
) &
4359 ~SBI_SSCDIVINTPHASE_INCVAL_MASK
);
4361 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
4368 mutex_lock(&dev_priv
->sb_lock
);
4370 /* Program SSCDIVINTPHASE6 */
4371 temp
= intel_sbi_read(dev_priv
, SBI_SSCDIVINTPHASE6
, SBI_ICLK
);
4372 temp
&= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
;
4373 temp
|= SBI_SSCDIVINTPHASE_DIVSEL(divsel
);
4374 temp
&= ~SBI_SSCDIVINTPHASE_INCVAL_MASK
;
4375 temp
|= SBI_SSCDIVINTPHASE_INCVAL(phaseinc
);
4376 temp
|= SBI_SSCDIVINTPHASE_DIR(phasedir
);
4377 temp
|= SBI_SSCDIVINTPHASE_PROPAGATE
;
4378 intel_sbi_write(dev_priv
, SBI_SSCDIVINTPHASE6
, temp
, SBI_ICLK
);
4380 /* Program SSCAUXDIV */
4381 temp
= intel_sbi_read(dev_priv
, SBI_SSCAUXDIV6
, SBI_ICLK
);
4382 temp
&= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
4383 temp
|= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv
);
4384 intel_sbi_write(dev_priv
, SBI_SSCAUXDIV6
, temp
, SBI_ICLK
);
4386 /* Enable modulator and associated divider */
4387 temp
= intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
);
4388 temp
&= ~SBI_SSCCTL_DISABLE
;
4389 intel_sbi_write(dev_priv
, SBI_SSCCTL6
, temp
, SBI_ICLK
);
4391 mutex_unlock(&dev_priv
->sb_lock
);
4393 /* Wait for initialization time */
4396 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_UNGATE
);
4399 int lpt_get_iclkip(struct drm_i915_private
*dev_priv
)
4401 u32 divsel
, phaseinc
, auxdiv
;
4402 u32 iclk_virtual_root_freq
= 172800 * 1000;
4403 u32 iclk_pi_range
= 64;
4404 u32 desired_divisor
;
4407 if ((I915_READ(PIXCLK_GATE
) & PIXCLK_GATE_UNGATE
) == 0)
4410 mutex_lock(&dev_priv
->sb_lock
);
4412 temp
= intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
);
4413 if (temp
& SBI_SSCCTL_DISABLE
) {
4414 mutex_unlock(&dev_priv
->sb_lock
);
4418 temp
= intel_sbi_read(dev_priv
, SBI_SSCDIVINTPHASE6
, SBI_ICLK
);
4419 divsel
= (temp
& SBI_SSCDIVINTPHASE_DIVSEL_MASK
) >>
4420 SBI_SSCDIVINTPHASE_DIVSEL_SHIFT
;
4421 phaseinc
= (temp
& SBI_SSCDIVINTPHASE_INCVAL_MASK
) >>
4422 SBI_SSCDIVINTPHASE_INCVAL_SHIFT
;
4424 temp
= intel_sbi_read(dev_priv
, SBI_SSCAUXDIV6
, SBI_ICLK
);
4425 auxdiv
= (temp
& SBI_SSCAUXDIV_FINALDIV2SEL_MASK
) >>
4426 SBI_SSCAUXDIV_FINALDIV2SEL_SHIFT
;
4428 mutex_unlock(&dev_priv
->sb_lock
);
4430 desired_divisor
= (divsel
+ 2) * iclk_pi_range
+ phaseinc
;
4432 return DIV_ROUND_CLOSEST(iclk_virtual_root_freq
,
4433 desired_divisor
<< auxdiv
);
4436 static void ironlake_pch_transcoder_set_timings(struct intel_crtc
*crtc
,
4437 enum pipe pch_transcoder
)
4439 struct drm_device
*dev
= crtc
->base
.dev
;
4440 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4441 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
4443 I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder
),
4444 I915_READ(HTOTAL(cpu_transcoder
)));
4445 I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder
),
4446 I915_READ(HBLANK(cpu_transcoder
)));
4447 I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder
),
4448 I915_READ(HSYNC(cpu_transcoder
)));
4450 I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder
),
4451 I915_READ(VTOTAL(cpu_transcoder
)));
4452 I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder
),
4453 I915_READ(VBLANK(cpu_transcoder
)));
4454 I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder
),
4455 I915_READ(VSYNC(cpu_transcoder
)));
4456 I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder
),
4457 I915_READ(VSYNCSHIFT(cpu_transcoder
)));
4460 static void cpt_set_fdi_bc_bifurcation(struct drm_device
*dev
, bool enable
)
4462 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4465 temp
= I915_READ(SOUTH_CHICKEN1
);
4466 if (!!(temp
& FDI_BC_BIFURCATION_SELECT
) == enable
)
4469 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B
)) & FDI_RX_ENABLE
);
4470 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C
)) & FDI_RX_ENABLE
);
4472 temp
&= ~FDI_BC_BIFURCATION_SELECT
;
4474 temp
|= FDI_BC_BIFURCATION_SELECT
;
4476 DRM_DEBUG_KMS("%sabling fdi C rx\n", enable
? "en" : "dis");
4477 I915_WRITE(SOUTH_CHICKEN1
, temp
);
4478 POSTING_READ(SOUTH_CHICKEN1
);
4481 static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc
*intel_crtc
)
4483 struct drm_device
*dev
= intel_crtc
->base
.dev
;
4485 switch (intel_crtc
->pipe
) {
4489 if (intel_crtc
->config
->fdi_lanes
> 2)
4490 cpt_set_fdi_bc_bifurcation(dev
, false);
4492 cpt_set_fdi_bc_bifurcation(dev
, true);
4496 cpt_set_fdi_bc_bifurcation(dev
, true);
4504 /* Return which DP Port should be selected for Transcoder DP control */
4506 intel_trans_dp_port_sel(struct drm_crtc
*crtc
)
4508 struct drm_device
*dev
= crtc
->dev
;
4509 struct intel_encoder
*encoder
;
4511 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
4512 if (encoder
->type
== INTEL_OUTPUT_DP
||
4513 encoder
->type
== INTEL_OUTPUT_EDP
)
4514 return enc_to_dig_port(&encoder
->base
)->port
;
4521 * Enable PCH resources required for PCH ports:
4523 * - FDI training & RX/TX
4524 * - update transcoder timings
4525 * - DP transcoding bits
4528 static void ironlake_pch_enable(struct drm_crtc
*crtc
)
4530 struct drm_device
*dev
= crtc
->dev
;
4531 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4532 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4533 int pipe
= intel_crtc
->pipe
;
4536 assert_pch_transcoder_disabled(dev_priv
, pipe
);
4538 if (IS_IVYBRIDGE(dev_priv
))
4539 ivybridge_update_fdi_bc_bifurcation(intel_crtc
);
4541 /* Write the TU size bits before fdi link training, so that error
4542 * detection works. */
4543 I915_WRITE(FDI_RX_TUSIZE1(pipe
),
4544 I915_READ(PIPE_DATA_M1(pipe
)) & TU_SIZE_MASK
);
4546 /* For PCH output, training FDI link */
4547 dev_priv
->display
.fdi_link_train(crtc
);
4549 /* We need to program the right clock selection before writing the pixel
4550 * mutliplier into the DPLL. */
4551 if (HAS_PCH_CPT(dev_priv
)) {
4554 temp
= I915_READ(PCH_DPLL_SEL
);
4555 temp
|= TRANS_DPLL_ENABLE(pipe
);
4556 sel
= TRANS_DPLLB_SEL(pipe
);
4557 if (intel_crtc
->config
->shared_dpll
==
4558 intel_get_shared_dpll_by_id(dev_priv
, DPLL_ID_PCH_PLL_B
))
4562 I915_WRITE(PCH_DPLL_SEL
, temp
);
4565 /* XXX: pch pll's can be enabled any time before we enable the PCH
4566 * transcoder, and we actually should do this to not upset any PCH
4567 * transcoder that already use the clock when we share it.
4569 * Note that enable_shared_dpll tries to do the right thing, but
4570 * get_shared_dpll unconditionally resets the pll - we need that to have
4571 * the right LVDS enable sequence. */
4572 intel_enable_shared_dpll(intel_crtc
);
4574 /* set transcoder timing, panel must allow it */
4575 assert_panel_unlocked(dev_priv
, pipe
);
4576 ironlake_pch_transcoder_set_timings(intel_crtc
, pipe
);
4578 intel_fdi_normal_train(crtc
);
4580 /* For PCH DP, enable TRANS_DP_CTL */
4581 if (HAS_PCH_CPT(dev_priv
) &&
4582 intel_crtc_has_dp_encoder(intel_crtc
->config
)) {
4583 const struct drm_display_mode
*adjusted_mode
=
4584 &intel_crtc
->config
->base
.adjusted_mode
;
4585 u32 bpc
= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) >> 5;
4586 i915_reg_t reg
= TRANS_DP_CTL(pipe
);
4587 temp
= I915_READ(reg
);
4588 temp
&= ~(TRANS_DP_PORT_SEL_MASK
|
4589 TRANS_DP_SYNC_MASK
|
4591 temp
|= TRANS_DP_OUTPUT_ENABLE
;
4592 temp
|= bpc
<< 9; /* same format but at 11:9 */
4594 if (adjusted_mode
->flags
& DRM_MODE_FLAG_PHSYNC
)
4595 temp
|= TRANS_DP_HSYNC_ACTIVE_HIGH
;
4596 if (adjusted_mode
->flags
& DRM_MODE_FLAG_PVSYNC
)
4597 temp
|= TRANS_DP_VSYNC_ACTIVE_HIGH
;
4599 switch (intel_trans_dp_port_sel(crtc
)) {
4601 temp
|= TRANS_DP_PORT_SEL_B
;
4604 temp
|= TRANS_DP_PORT_SEL_C
;
4607 temp
|= TRANS_DP_PORT_SEL_D
;
4613 I915_WRITE(reg
, temp
);
4616 ironlake_enable_pch_transcoder(dev_priv
, pipe
);
4619 static void lpt_pch_enable(struct drm_crtc
*crtc
)
4621 struct drm_device
*dev
= crtc
->dev
;
4622 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4623 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4624 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
4626 assert_pch_transcoder_disabled(dev_priv
, TRANSCODER_A
);
4628 lpt_program_iclkip(crtc
);
4630 /* Set transcoder timing. */
4631 ironlake_pch_transcoder_set_timings(intel_crtc
, PIPE_A
);
4633 lpt_enable_pch_transcoder(dev_priv
, cpu_transcoder
);
4636 static void cpt_verify_modeset(struct drm_device
*dev
, int pipe
)
4638 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4639 i915_reg_t dslreg
= PIPEDSL(pipe
);
4642 temp
= I915_READ(dslreg
);
4644 if (wait_for(I915_READ(dslreg
) != temp
, 5)) {
4645 if (wait_for(I915_READ(dslreg
) != temp
, 5))
4646 DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe
));
4651 skl_update_scaler(struct intel_crtc_state
*crtc_state
, bool force_detach
,
4652 unsigned scaler_user
, int *scaler_id
, unsigned int rotation
,
4653 int src_w
, int src_h
, int dst_w
, int dst_h
)
4655 struct intel_crtc_scaler_state
*scaler_state
=
4656 &crtc_state
->scaler_state
;
4657 struct intel_crtc
*intel_crtc
=
4658 to_intel_crtc(crtc_state
->base
.crtc
);
4661 need_scaling
= drm_rotation_90_or_270(rotation
) ?
4662 (src_h
!= dst_w
|| src_w
!= dst_h
):
4663 (src_w
!= dst_w
|| src_h
!= dst_h
);
4666 * if plane is being disabled or scaler is no more required or force detach
4667 * - free scaler binded to this plane/crtc
4668 * - in order to do this, update crtc->scaler_usage
4670 * Here scaler state in crtc_state is set free so that
4671 * scaler can be assigned to other user. Actual register
4672 * update to free the scaler is done in plane/panel-fit programming.
4673 * For this purpose crtc/plane_state->scaler_id isn't reset here.
4675 if (force_detach
|| !need_scaling
) {
4676 if (*scaler_id
>= 0) {
4677 scaler_state
->scaler_users
&= ~(1 << scaler_user
);
4678 scaler_state
->scalers
[*scaler_id
].in_use
= 0;
4680 DRM_DEBUG_KMS("scaler_user index %u.%u: "
4681 "Staged freeing scaler id %d scaler_users = 0x%x\n",
4682 intel_crtc
->pipe
, scaler_user
, *scaler_id
,
4683 scaler_state
->scaler_users
);
4690 if (src_w
< SKL_MIN_SRC_W
|| src_h
< SKL_MIN_SRC_H
||
4691 dst_w
< SKL_MIN_DST_W
|| dst_h
< SKL_MIN_DST_H
||
4693 src_w
> SKL_MAX_SRC_W
|| src_h
> SKL_MAX_SRC_H
||
4694 dst_w
> SKL_MAX_DST_W
|| dst_h
> SKL_MAX_DST_H
) {
4695 DRM_DEBUG_KMS("scaler_user index %u.%u: src %ux%u dst %ux%u "
4696 "size is out of scaler range\n",
4697 intel_crtc
->pipe
, scaler_user
, src_w
, src_h
, dst_w
, dst_h
);
4701 /* mark this plane as a scaler user in crtc_state */
4702 scaler_state
->scaler_users
|= (1 << scaler_user
);
4703 DRM_DEBUG_KMS("scaler_user index %u.%u: "
4704 "staged scaling request for %ux%u->%ux%u scaler_users = 0x%x\n",
4705 intel_crtc
->pipe
, scaler_user
, src_w
, src_h
, dst_w
, dst_h
,
4706 scaler_state
->scaler_users
);
4712 * skl_update_scaler_crtc - Stages update to scaler state for a given crtc.
4714 * @state: crtc's scaler state
4717 * 0 - scaler_usage updated successfully
4718 * error - requested scaling cannot be supported or other error condition
4720 int skl_update_scaler_crtc(struct intel_crtc_state
*state
)
4722 const struct drm_display_mode
*adjusted_mode
= &state
->base
.adjusted_mode
;
4724 return skl_update_scaler(state
, !state
->base
.active
, SKL_CRTC_INDEX
,
4725 &state
->scaler_state
.scaler_id
, DRM_ROTATE_0
,
4726 state
->pipe_src_w
, state
->pipe_src_h
,
4727 adjusted_mode
->crtc_hdisplay
, adjusted_mode
->crtc_vdisplay
);
4731 * skl_update_scaler_plane - Stages update to scaler state for a given plane.
4733 * @state: crtc's scaler state
4734 * @plane_state: atomic plane state to update
4737 * 0 - scaler_usage updated successfully
4738 * error - requested scaling cannot be supported or other error condition
4740 static int skl_update_scaler_plane(struct intel_crtc_state
*crtc_state
,
4741 struct intel_plane_state
*plane_state
)
4744 struct intel_plane
*intel_plane
=
4745 to_intel_plane(plane_state
->base
.plane
);
4746 struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
4749 bool force_detach
= !fb
|| !plane_state
->base
.visible
;
4751 ret
= skl_update_scaler(crtc_state
, force_detach
,
4752 drm_plane_index(&intel_plane
->base
),
4753 &plane_state
->scaler_id
,
4754 plane_state
->base
.rotation
,
4755 drm_rect_width(&plane_state
->base
.src
) >> 16,
4756 drm_rect_height(&plane_state
->base
.src
) >> 16,
4757 drm_rect_width(&plane_state
->base
.dst
),
4758 drm_rect_height(&plane_state
->base
.dst
));
4760 if (ret
|| plane_state
->scaler_id
< 0)
4763 /* check colorkey */
4764 if (plane_state
->ckey
.flags
!= I915_SET_COLORKEY_NONE
) {
4765 DRM_DEBUG_KMS("[PLANE:%d:%s] scaling with color key not allowed",
4766 intel_plane
->base
.base
.id
,
4767 intel_plane
->base
.name
);
4771 /* Check src format */
4772 switch (fb
->pixel_format
) {
4773 case DRM_FORMAT_RGB565
:
4774 case DRM_FORMAT_XBGR8888
:
4775 case DRM_FORMAT_XRGB8888
:
4776 case DRM_FORMAT_ABGR8888
:
4777 case DRM_FORMAT_ARGB8888
:
4778 case DRM_FORMAT_XRGB2101010
:
4779 case DRM_FORMAT_XBGR2101010
:
4780 case DRM_FORMAT_YUYV
:
4781 case DRM_FORMAT_YVYU
:
4782 case DRM_FORMAT_UYVY
:
4783 case DRM_FORMAT_VYUY
:
4786 DRM_DEBUG_KMS("[PLANE:%d:%s] FB:%d unsupported scaling format 0x%x\n",
4787 intel_plane
->base
.base
.id
, intel_plane
->base
.name
,
4788 fb
->base
.id
, fb
->pixel_format
);
4795 static void skylake_scaler_disable(struct intel_crtc
*crtc
)
4799 for (i
= 0; i
< crtc
->num_scalers
; i
++)
4800 skl_detach_scaler(crtc
, i
);
4803 static void skylake_pfit_enable(struct intel_crtc
*crtc
)
4805 struct drm_device
*dev
= crtc
->base
.dev
;
4806 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4807 int pipe
= crtc
->pipe
;
4808 struct intel_crtc_scaler_state
*scaler_state
=
4809 &crtc
->config
->scaler_state
;
4811 DRM_DEBUG_KMS("for crtc_state = %p\n", crtc
->config
);
4813 if (crtc
->config
->pch_pfit
.enabled
) {
4816 if (WARN_ON(crtc
->config
->scaler_state
.scaler_id
< 0)) {
4817 DRM_ERROR("Requesting pfit without getting a scaler first\n");
4821 id
= scaler_state
->scaler_id
;
4822 I915_WRITE(SKL_PS_CTRL(pipe
, id
), PS_SCALER_EN
|
4823 PS_FILTER_MEDIUM
| scaler_state
->scalers
[id
].mode
);
4824 I915_WRITE(SKL_PS_WIN_POS(pipe
, id
), crtc
->config
->pch_pfit
.pos
);
4825 I915_WRITE(SKL_PS_WIN_SZ(pipe
, id
), crtc
->config
->pch_pfit
.size
);
4827 DRM_DEBUG_KMS("for crtc_state = %p scaler_id = %d\n", crtc
->config
, id
);
4831 static void ironlake_pfit_enable(struct intel_crtc
*crtc
)
4833 struct drm_device
*dev
= crtc
->base
.dev
;
4834 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4835 int pipe
= crtc
->pipe
;
4837 if (crtc
->config
->pch_pfit
.enabled
) {
4838 /* Force use of hard-coded filter coefficients
4839 * as some pre-programmed values are broken,
4842 if (IS_IVYBRIDGE(dev_priv
) || IS_HASWELL(dev_priv
))
4843 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
|
4844 PF_PIPE_SEL_IVB(pipe
));
4846 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
);
4847 I915_WRITE(PF_WIN_POS(pipe
), crtc
->config
->pch_pfit
.pos
);
4848 I915_WRITE(PF_WIN_SZ(pipe
), crtc
->config
->pch_pfit
.size
);
4852 void hsw_enable_ips(struct intel_crtc
*crtc
)
4854 struct drm_device
*dev
= crtc
->base
.dev
;
4855 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4857 if (!crtc
->config
->ips_enabled
)
4861 * We can only enable IPS after we enable a plane and wait for a vblank
4862 * This function is called from post_plane_update, which is run after
4866 assert_plane_enabled(dev_priv
, crtc
->plane
);
4867 if (IS_BROADWELL(dev_priv
)) {
4868 mutex_lock(&dev_priv
->rps
.hw_lock
);
4869 WARN_ON(sandybridge_pcode_write(dev_priv
, DISPLAY_IPS_CONTROL
, 0xc0000000));
4870 mutex_unlock(&dev_priv
->rps
.hw_lock
);
4871 /* Quoting Art Runyan: "its not safe to expect any particular
4872 * value in IPS_CTL bit 31 after enabling IPS through the
4873 * mailbox." Moreover, the mailbox may return a bogus state,
4874 * so we need to just enable it and continue on.
4877 I915_WRITE(IPS_CTL
, IPS_ENABLE
);
4878 /* The bit only becomes 1 in the next vblank, so this wait here
4879 * is essentially intel_wait_for_vblank. If we don't have this
4880 * and don't wait for vblanks until the end of crtc_enable, then
4881 * the HW state readout code will complain that the expected
4882 * IPS_CTL value is not the one we read. */
4883 if (intel_wait_for_register(dev_priv
,
4884 IPS_CTL
, IPS_ENABLE
, IPS_ENABLE
,
4886 DRM_ERROR("Timed out waiting for IPS enable\n");
4890 void hsw_disable_ips(struct intel_crtc
*crtc
)
4892 struct drm_device
*dev
= crtc
->base
.dev
;
4893 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4895 if (!crtc
->config
->ips_enabled
)
4898 assert_plane_enabled(dev_priv
, crtc
->plane
);
4899 if (IS_BROADWELL(dev_priv
)) {
4900 mutex_lock(&dev_priv
->rps
.hw_lock
);
4901 WARN_ON(sandybridge_pcode_write(dev_priv
, DISPLAY_IPS_CONTROL
, 0));
4902 mutex_unlock(&dev_priv
->rps
.hw_lock
);
4903 /* wait for pcode to finish disabling IPS, which may take up to 42ms */
4904 if (intel_wait_for_register(dev_priv
,
4905 IPS_CTL
, IPS_ENABLE
, 0,
4907 DRM_ERROR("Timed out waiting for IPS disable\n");
4909 I915_WRITE(IPS_CTL
, 0);
4910 POSTING_READ(IPS_CTL
);
4913 /* We need to wait for a vblank before we can disable the plane. */
4914 intel_wait_for_vblank(dev_priv
, crtc
->pipe
);
4917 static void intel_crtc_dpms_overlay_disable(struct intel_crtc
*intel_crtc
)
4919 if (intel_crtc
->overlay
) {
4920 struct drm_device
*dev
= intel_crtc
->base
.dev
;
4921 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4923 mutex_lock(&dev
->struct_mutex
);
4924 dev_priv
->mm
.interruptible
= false;
4925 (void) intel_overlay_switch_off(intel_crtc
->overlay
);
4926 dev_priv
->mm
.interruptible
= true;
4927 mutex_unlock(&dev
->struct_mutex
);
4930 /* Let userspace switch the overlay on again. In most cases userspace
4931 * has to recompute where to put it anyway.
4936 * intel_post_enable_primary - Perform operations after enabling primary plane
4937 * @crtc: the CRTC whose primary plane was just enabled
4939 * Performs potentially sleeping operations that must be done after the primary
4940 * plane is enabled, such as updating FBC and IPS. Note that this may be
4941 * called due to an explicit primary plane update, or due to an implicit
4942 * re-enable that is caused when a sprite plane is updated to no longer
4943 * completely hide the primary plane.
4946 intel_post_enable_primary(struct drm_crtc
*crtc
)
4948 struct drm_device
*dev
= crtc
->dev
;
4949 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4950 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4951 int pipe
= intel_crtc
->pipe
;
4954 * FIXME IPS should be fine as long as one plane is
4955 * enabled, but in practice it seems to have problems
4956 * when going from primary only to sprite only and vice
4959 hsw_enable_ips(intel_crtc
);
4962 * Gen2 reports pipe underruns whenever all planes are disabled.
4963 * So don't enable underrun reporting before at least some planes
4965 * FIXME: Need to fix the logic to work when we turn off all planes
4966 * but leave the pipe running.
4968 if (IS_GEN2(dev_priv
))
4969 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
4971 /* Underruns don't always raise interrupts, so check manually. */
4972 intel_check_cpu_fifo_underruns(dev_priv
);
4973 intel_check_pch_fifo_underruns(dev_priv
);
4976 /* FIXME move all this to pre_plane_update() with proper state tracking */
4978 intel_pre_disable_primary(struct drm_crtc
*crtc
)
4980 struct drm_device
*dev
= crtc
->dev
;
4981 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4982 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4983 int pipe
= intel_crtc
->pipe
;
4986 * Gen2 reports pipe underruns whenever all planes are disabled.
4987 * So diasble underrun reporting before all the planes get disabled.
4988 * FIXME: Need to fix the logic to work when we turn off all planes
4989 * but leave the pipe running.
4991 if (IS_GEN2(dev_priv
))
4992 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, false);
4995 * FIXME IPS should be fine as long as one plane is
4996 * enabled, but in practice it seems to have problems
4997 * when going from primary only to sprite only and vice
5000 hsw_disable_ips(intel_crtc
);
5003 /* FIXME get rid of this and use pre_plane_update */
5005 intel_pre_disable_primary_noatomic(struct drm_crtc
*crtc
)
5007 struct drm_device
*dev
= crtc
->dev
;
5008 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5009 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5010 int pipe
= intel_crtc
->pipe
;
5012 intel_pre_disable_primary(crtc
);
5015 * Vblank time updates from the shadow to live plane control register
5016 * are blocked if the memory self-refresh mode is active at that
5017 * moment. So to make sure the plane gets truly disabled, disable
5018 * first the self-refresh mode. The self-refresh enable bit in turn
5019 * will be checked/applied by the HW only at the next frame start
5020 * event which is after the vblank start event, so we need to have a
5021 * wait-for-vblank between disabling the plane and the pipe.
5023 if (HAS_GMCH_DISPLAY(dev_priv
)) {
5024 intel_set_memory_cxsr(dev_priv
, false);
5025 dev_priv
->wm
.vlv
.cxsr
= false;
5026 intel_wait_for_vblank(dev_priv
, pipe
);
5030 static void intel_post_plane_update(struct intel_crtc_state
*old_crtc_state
)
5032 struct intel_crtc
*crtc
= to_intel_crtc(old_crtc_state
->base
.crtc
);
5033 struct drm_atomic_state
*old_state
= old_crtc_state
->base
.state
;
5034 struct intel_crtc_state
*pipe_config
=
5035 to_intel_crtc_state(crtc
->base
.state
);
5036 struct drm_plane
*primary
= crtc
->base
.primary
;
5037 struct drm_plane_state
*old_pri_state
=
5038 drm_atomic_get_existing_plane_state(old_state
, primary
);
5040 intel_frontbuffer_flip(to_i915(crtc
->base
.dev
), pipe_config
->fb_bits
);
5042 crtc
->wm
.cxsr_allowed
= true;
5044 if (pipe_config
->update_wm_post
&& pipe_config
->base
.active
)
5045 intel_update_watermarks(crtc
);
5047 if (old_pri_state
) {
5048 struct intel_plane_state
*primary_state
=
5049 to_intel_plane_state(primary
->state
);
5050 struct intel_plane_state
*old_primary_state
=
5051 to_intel_plane_state(old_pri_state
);
5053 intel_fbc_post_update(crtc
);
5055 if (primary_state
->base
.visible
&&
5056 (needs_modeset(&pipe_config
->base
) ||
5057 !old_primary_state
->base
.visible
))
5058 intel_post_enable_primary(&crtc
->base
);
5062 static void intel_pre_plane_update(struct intel_crtc_state
*old_crtc_state
)
5064 struct intel_crtc
*crtc
= to_intel_crtc(old_crtc_state
->base
.crtc
);
5065 struct drm_device
*dev
= crtc
->base
.dev
;
5066 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5067 struct intel_crtc_state
*pipe_config
=
5068 to_intel_crtc_state(crtc
->base
.state
);
5069 struct drm_atomic_state
*old_state
= old_crtc_state
->base
.state
;
5070 struct drm_plane
*primary
= crtc
->base
.primary
;
5071 struct drm_plane_state
*old_pri_state
=
5072 drm_atomic_get_existing_plane_state(old_state
, primary
);
5073 bool modeset
= needs_modeset(&pipe_config
->base
);
5074 struct intel_atomic_state
*old_intel_state
=
5075 to_intel_atomic_state(old_state
);
5077 if (old_pri_state
) {
5078 struct intel_plane_state
*primary_state
=
5079 to_intel_plane_state(primary
->state
);
5080 struct intel_plane_state
*old_primary_state
=
5081 to_intel_plane_state(old_pri_state
);
5083 intel_fbc_pre_update(crtc
, pipe_config
, primary_state
);
5085 if (old_primary_state
->base
.visible
&&
5086 (modeset
|| !primary_state
->base
.visible
))
5087 intel_pre_disable_primary(&crtc
->base
);
5090 if (pipe_config
->disable_cxsr
&& HAS_GMCH_DISPLAY(dev_priv
)) {
5091 crtc
->wm
.cxsr_allowed
= false;
5094 * Vblank time updates from the shadow to live plane control register
5095 * are blocked if the memory self-refresh mode is active at that
5096 * moment. So to make sure the plane gets truly disabled, disable
5097 * first the self-refresh mode. The self-refresh enable bit in turn
5098 * will be checked/applied by the HW only at the next frame start
5099 * event which is after the vblank start event, so we need to have a
5100 * wait-for-vblank between disabling the plane and the pipe.
5102 if (old_crtc_state
->base
.active
) {
5103 intel_set_memory_cxsr(dev_priv
, false);
5104 dev_priv
->wm
.vlv
.cxsr
= false;
5105 intel_wait_for_vblank(dev_priv
, crtc
->pipe
);
5110 * IVB workaround: must disable low power watermarks for at least
5111 * one frame before enabling scaling. LP watermarks can be re-enabled
5112 * when scaling is disabled.
5114 * WaCxSRDisabledForSpriteScaling:ivb
5116 if (pipe_config
->disable_lp_wm
) {
5117 ilk_disable_lp_wm(dev
);
5118 intel_wait_for_vblank(dev_priv
, crtc
->pipe
);
5122 * If we're doing a modeset, we're done. No need to do any pre-vblank
5123 * watermark programming here.
5125 if (needs_modeset(&pipe_config
->base
))
5129 * For platforms that support atomic watermarks, program the
5130 * 'intermediate' watermarks immediately. On pre-gen9 platforms, these
5131 * will be the intermediate values that are safe for both pre- and
5132 * post- vblank; when vblank happens, the 'active' values will be set
5133 * to the final 'target' values and we'll do this again to get the
5134 * optimal watermarks. For gen9+ platforms, the values we program here
5135 * will be the final target values which will get automatically latched
5136 * at vblank time; no further programming will be necessary.
5138 * If a platform hasn't been transitioned to atomic watermarks yet,
5139 * we'll continue to update watermarks the old way, if flags tell
5142 if (dev_priv
->display
.initial_watermarks
!= NULL
)
5143 dev_priv
->display
.initial_watermarks(old_intel_state
,
5145 else if (pipe_config
->update_wm_pre
)
5146 intel_update_watermarks(crtc
);
5149 static void intel_crtc_disable_planes(struct drm_crtc
*crtc
, unsigned plane_mask
)
5151 struct drm_device
*dev
= crtc
->dev
;
5152 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5153 struct drm_plane
*p
;
5154 int pipe
= intel_crtc
->pipe
;
5156 intel_crtc_dpms_overlay_disable(intel_crtc
);
5158 drm_for_each_plane_mask(p
, dev
, plane_mask
)
5159 to_intel_plane(p
)->disable_plane(p
, crtc
);
5162 * FIXME: Once we grow proper nuclear flip support out of this we need
5163 * to compute the mask of flip planes precisely. For the time being
5164 * consider this a flip to a NULL plane.
5166 intel_frontbuffer_flip(to_i915(dev
), INTEL_FRONTBUFFER_ALL_MASK(pipe
));
5169 static void intel_encoders_pre_pll_enable(struct drm_crtc
*crtc
,
5170 struct intel_crtc_state
*crtc_state
,
5171 struct drm_atomic_state
*old_state
)
5173 struct drm_connector_state
*old_conn_state
;
5174 struct drm_connector
*conn
;
5177 for_each_connector_in_state(old_state
, conn
, old_conn_state
, i
) {
5178 struct drm_connector_state
*conn_state
= conn
->state
;
5179 struct intel_encoder
*encoder
=
5180 to_intel_encoder(conn_state
->best_encoder
);
5182 if (conn_state
->crtc
!= crtc
)
5185 if (encoder
->pre_pll_enable
)
5186 encoder
->pre_pll_enable(encoder
, crtc_state
, conn_state
);
5190 static void intel_encoders_pre_enable(struct drm_crtc
*crtc
,
5191 struct intel_crtc_state
*crtc_state
,
5192 struct drm_atomic_state
*old_state
)
5194 struct drm_connector_state
*old_conn_state
;
5195 struct drm_connector
*conn
;
5198 for_each_connector_in_state(old_state
, conn
, old_conn_state
, i
) {
5199 struct drm_connector_state
*conn_state
= conn
->state
;
5200 struct intel_encoder
*encoder
=
5201 to_intel_encoder(conn_state
->best_encoder
);
5203 if (conn_state
->crtc
!= crtc
)
5206 if (encoder
->pre_enable
)
5207 encoder
->pre_enable(encoder
, crtc_state
, conn_state
);
5211 static void intel_encoders_enable(struct drm_crtc
*crtc
,
5212 struct intel_crtc_state
*crtc_state
,
5213 struct drm_atomic_state
*old_state
)
5215 struct drm_connector_state
*old_conn_state
;
5216 struct drm_connector
*conn
;
5219 for_each_connector_in_state(old_state
, conn
, old_conn_state
, i
) {
5220 struct drm_connector_state
*conn_state
= conn
->state
;
5221 struct intel_encoder
*encoder
=
5222 to_intel_encoder(conn_state
->best_encoder
);
5224 if (conn_state
->crtc
!= crtc
)
5227 encoder
->enable(encoder
, crtc_state
, conn_state
);
5228 intel_opregion_notify_encoder(encoder
, true);
5232 static void intel_encoders_disable(struct drm_crtc
*crtc
,
5233 struct intel_crtc_state
*old_crtc_state
,
5234 struct drm_atomic_state
*old_state
)
5236 struct drm_connector_state
*old_conn_state
;
5237 struct drm_connector
*conn
;
5240 for_each_connector_in_state(old_state
, conn
, old_conn_state
, i
) {
5241 struct intel_encoder
*encoder
=
5242 to_intel_encoder(old_conn_state
->best_encoder
);
5244 if (old_conn_state
->crtc
!= crtc
)
5247 intel_opregion_notify_encoder(encoder
, false);
5248 encoder
->disable(encoder
, old_crtc_state
, old_conn_state
);
5252 static void intel_encoders_post_disable(struct drm_crtc
*crtc
,
5253 struct intel_crtc_state
*old_crtc_state
,
5254 struct drm_atomic_state
*old_state
)
5256 struct drm_connector_state
*old_conn_state
;
5257 struct drm_connector
*conn
;
5260 for_each_connector_in_state(old_state
, conn
, old_conn_state
, i
) {
5261 struct intel_encoder
*encoder
=
5262 to_intel_encoder(old_conn_state
->best_encoder
);
5264 if (old_conn_state
->crtc
!= crtc
)
5267 if (encoder
->post_disable
)
5268 encoder
->post_disable(encoder
, old_crtc_state
, old_conn_state
);
5272 static void intel_encoders_post_pll_disable(struct drm_crtc
*crtc
,
5273 struct intel_crtc_state
*old_crtc_state
,
5274 struct drm_atomic_state
*old_state
)
5276 struct drm_connector_state
*old_conn_state
;
5277 struct drm_connector
*conn
;
5280 for_each_connector_in_state(old_state
, conn
, old_conn_state
, i
) {
5281 struct intel_encoder
*encoder
=
5282 to_intel_encoder(old_conn_state
->best_encoder
);
5284 if (old_conn_state
->crtc
!= crtc
)
5287 if (encoder
->post_pll_disable
)
5288 encoder
->post_pll_disable(encoder
, old_crtc_state
, old_conn_state
);
5292 static void ironlake_crtc_enable(struct intel_crtc_state
*pipe_config
,
5293 struct drm_atomic_state
*old_state
)
5295 struct drm_crtc
*crtc
= pipe_config
->base
.crtc
;
5296 struct drm_device
*dev
= crtc
->dev
;
5297 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5298 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5299 int pipe
= intel_crtc
->pipe
;
5300 struct intel_atomic_state
*old_intel_state
=
5301 to_intel_atomic_state(old_state
);
5303 if (WARN_ON(intel_crtc
->active
))
5307 * Sometimes spurious CPU pipe underruns happen during FDI
5308 * training, at least with VGA+HDMI cloning. Suppress them.
5310 * On ILK we get an occasional spurious CPU pipe underruns
5311 * between eDP port A enable and vdd enable. Also PCH port
5312 * enable seems to result in the occasional CPU pipe underrun.
5314 * Spurious PCH underruns also occur during PCH enabling.
5316 if (intel_crtc
->config
->has_pch_encoder
|| IS_GEN5(dev_priv
))
5317 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, false);
5318 if (intel_crtc
->config
->has_pch_encoder
)
5319 intel_set_pch_fifo_underrun_reporting(dev_priv
, pipe
, false);
5321 if (intel_crtc
->config
->has_pch_encoder
)
5322 intel_prepare_shared_dpll(intel_crtc
);
5324 if (intel_crtc_has_dp_encoder(intel_crtc
->config
))
5325 intel_dp_set_m_n(intel_crtc
, M1_N1
);
5327 intel_set_pipe_timings(intel_crtc
);
5328 intel_set_pipe_src_size(intel_crtc
);
5330 if (intel_crtc
->config
->has_pch_encoder
) {
5331 intel_cpu_transcoder_set_m_n(intel_crtc
,
5332 &intel_crtc
->config
->fdi_m_n
, NULL
);
5335 ironlake_set_pipeconf(crtc
);
5337 intel_crtc
->active
= true;
5339 intel_encoders_pre_enable(crtc
, pipe_config
, old_state
);
5341 if (intel_crtc
->config
->has_pch_encoder
) {
5342 /* Note: FDI PLL enabling _must_ be done before we enable the
5343 * cpu pipes, hence this is separate from all the other fdi/pch
5345 ironlake_fdi_pll_enable(intel_crtc
);
5347 assert_fdi_tx_disabled(dev_priv
, pipe
);
5348 assert_fdi_rx_disabled(dev_priv
, pipe
);
5351 ironlake_pfit_enable(intel_crtc
);
5354 * On ILK+ LUT must be loaded before the pipe is running but with
5357 intel_color_load_luts(&pipe_config
->base
);
5359 if (dev_priv
->display
.initial_watermarks
!= NULL
)
5360 dev_priv
->display
.initial_watermarks(old_intel_state
, intel_crtc
->config
);
5361 intel_enable_pipe(intel_crtc
);
5363 if (intel_crtc
->config
->has_pch_encoder
)
5364 ironlake_pch_enable(crtc
);
5366 assert_vblank_disabled(crtc
);
5367 drm_crtc_vblank_on(crtc
);
5369 intel_encoders_enable(crtc
, pipe_config
, old_state
);
5371 if (HAS_PCH_CPT(dev_priv
))
5372 cpt_verify_modeset(dev
, intel_crtc
->pipe
);
5374 /* Must wait for vblank to avoid spurious PCH FIFO underruns */
5375 if (intel_crtc
->config
->has_pch_encoder
)
5376 intel_wait_for_vblank(dev_priv
, pipe
);
5377 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5378 intel_set_pch_fifo_underrun_reporting(dev_priv
, pipe
, true);
5381 /* IPS only exists on ULT machines and is tied to pipe A. */
5382 static bool hsw_crtc_supports_ips(struct intel_crtc
*crtc
)
5384 return HAS_IPS(to_i915(crtc
->base
.dev
)) && crtc
->pipe
== PIPE_A
;
5387 static void haswell_crtc_enable(struct intel_crtc_state
*pipe_config
,
5388 struct drm_atomic_state
*old_state
)
5390 struct drm_crtc
*crtc
= pipe_config
->base
.crtc
;
5391 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
5392 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5393 int pipe
= intel_crtc
->pipe
, hsw_workaround_pipe
;
5394 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
5395 struct intel_atomic_state
*old_intel_state
=
5396 to_intel_atomic_state(old_state
);
5398 if (WARN_ON(intel_crtc
->active
))
5401 if (intel_crtc
->config
->has_pch_encoder
)
5402 intel_set_pch_fifo_underrun_reporting(dev_priv
, TRANSCODER_A
,
5405 intel_encoders_pre_pll_enable(crtc
, pipe_config
, old_state
);
5407 if (intel_crtc
->config
->shared_dpll
)
5408 intel_enable_shared_dpll(intel_crtc
);
5410 if (intel_crtc_has_dp_encoder(intel_crtc
->config
))
5411 intel_dp_set_m_n(intel_crtc
, M1_N1
);
5413 if (!transcoder_is_dsi(cpu_transcoder
))
5414 intel_set_pipe_timings(intel_crtc
);
5416 intel_set_pipe_src_size(intel_crtc
);
5418 if (cpu_transcoder
!= TRANSCODER_EDP
&&
5419 !transcoder_is_dsi(cpu_transcoder
)) {
5420 I915_WRITE(PIPE_MULT(cpu_transcoder
),
5421 intel_crtc
->config
->pixel_multiplier
- 1);
5424 if (intel_crtc
->config
->has_pch_encoder
) {
5425 intel_cpu_transcoder_set_m_n(intel_crtc
,
5426 &intel_crtc
->config
->fdi_m_n
, NULL
);
5429 if (!transcoder_is_dsi(cpu_transcoder
))
5430 haswell_set_pipeconf(crtc
);
5432 haswell_set_pipemisc(crtc
);
5434 intel_color_set_csc(&pipe_config
->base
);
5436 intel_crtc
->active
= true;
5438 if (intel_crtc
->config
->has_pch_encoder
)
5439 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, false);
5441 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5443 intel_encoders_pre_enable(crtc
, pipe_config
, old_state
);
5445 if (intel_crtc
->config
->has_pch_encoder
)
5446 dev_priv
->display
.fdi_link_train(crtc
);
5448 if (!transcoder_is_dsi(cpu_transcoder
))
5449 intel_ddi_enable_pipe_clock(intel_crtc
);
5451 if (INTEL_GEN(dev_priv
) >= 9)
5452 skylake_pfit_enable(intel_crtc
);
5454 ironlake_pfit_enable(intel_crtc
);
5457 * On ILK+ LUT must be loaded before the pipe is running but with
5460 intel_color_load_luts(&pipe_config
->base
);
5462 intel_ddi_set_pipe_settings(crtc
);
5463 if (!transcoder_is_dsi(cpu_transcoder
))
5464 intel_ddi_enable_transcoder_func(crtc
);
5466 if (dev_priv
->display
.initial_watermarks
!= NULL
)
5467 dev_priv
->display
.initial_watermarks(old_intel_state
,
5470 intel_update_watermarks(intel_crtc
);
5472 /* XXX: Do the pipe assertions at the right place for BXT DSI. */
5473 if (!transcoder_is_dsi(cpu_transcoder
))
5474 intel_enable_pipe(intel_crtc
);
5476 if (intel_crtc
->config
->has_pch_encoder
)
5477 lpt_pch_enable(crtc
);
5479 if (intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_DP_MST
))
5480 intel_ddi_set_vc_payload_alloc(crtc
, true);
5482 assert_vblank_disabled(crtc
);
5483 drm_crtc_vblank_on(crtc
);
5485 intel_encoders_enable(crtc
, pipe_config
, old_state
);
5487 if (intel_crtc
->config
->has_pch_encoder
) {
5488 intel_wait_for_vblank(dev_priv
, pipe
);
5489 intel_wait_for_vblank(dev_priv
, pipe
);
5490 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5491 intel_set_pch_fifo_underrun_reporting(dev_priv
, TRANSCODER_A
,
5495 /* If we change the relative order between pipe/planes enabling, we need
5496 * to change the workaround. */
5497 hsw_workaround_pipe
= pipe_config
->hsw_workaround_pipe
;
5498 if (IS_HASWELL(dev_priv
) && hsw_workaround_pipe
!= INVALID_PIPE
) {
5499 intel_wait_for_vblank(dev_priv
, hsw_workaround_pipe
);
5500 intel_wait_for_vblank(dev_priv
, hsw_workaround_pipe
);
5504 static void ironlake_pfit_disable(struct intel_crtc
*crtc
, bool force
)
5506 struct drm_device
*dev
= crtc
->base
.dev
;
5507 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5508 int pipe
= crtc
->pipe
;
5510 /* To avoid upsetting the power well on haswell only disable the pfit if
5511 * it's in use. The hw state code will make sure we get this right. */
5512 if (force
|| crtc
->config
->pch_pfit
.enabled
) {
5513 I915_WRITE(PF_CTL(pipe
), 0);
5514 I915_WRITE(PF_WIN_POS(pipe
), 0);
5515 I915_WRITE(PF_WIN_SZ(pipe
), 0);
5519 static void ironlake_crtc_disable(struct intel_crtc_state
*old_crtc_state
,
5520 struct drm_atomic_state
*old_state
)
5522 struct drm_crtc
*crtc
= old_crtc_state
->base
.crtc
;
5523 struct drm_device
*dev
= crtc
->dev
;
5524 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5525 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5526 int pipe
= intel_crtc
->pipe
;
5529 * Sometimes spurious CPU pipe underruns happen when the
5530 * pipe is already disabled, but FDI RX/TX is still enabled.
5531 * Happens at least with VGA+HDMI cloning. Suppress them.
5533 if (intel_crtc
->config
->has_pch_encoder
) {
5534 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, false);
5535 intel_set_pch_fifo_underrun_reporting(dev_priv
, pipe
, false);
5538 intel_encoders_disable(crtc
, old_crtc_state
, old_state
);
5540 drm_crtc_vblank_off(crtc
);
5541 assert_vblank_disabled(crtc
);
5543 intel_disable_pipe(intel_crtc
);
5545 ironlake_pfit_disable(intel_crtc
, false);
5547 if (intel_crtc
->config
->has_pch_encoder
)
5548 ironlake_fdi_disable(crtc
);
5550 intel_encoders_post_disable(crtc
, old_crtc_state
, old_state
);
5552 if (intel_crtc
->config
->has_pch_encoder
) {
5553 ironlake_disable_pch_transcoder(dev_priv
, pipe
);
5555 if (HAS_PCH_CPT(dev_priv
)) {
5559 /* disable TRANS_DP_CTL */
5560 reg
= TRANS_DP_CTL(pipe
);
5561 temp
= I915_READ(reg
);
5562 temp
&= ~(TRANS_DP_OUTPUT_ENABLE
|
5563 TRANS_DP_PORT_SEL_MASK
);
5564 temp
|= TRANS_DP_PORT_SEL_NONE
;
5565 I915_WRITE(reg
, temp
);
5567 /* disable DPLL_SEL */
5568 temp
= I915_READ(PCH_DPLL_SEL
);
5569 temp
&= ~(TRANS_DPLL_ENABLE(pipe
) | TRANS_DPLLB_SEL(pipe
));
5570 I915_WRITE(PCH_DPLL_SEL
, temp
);
5573 ironlake_fdi_pll_disable(intel_crtc
);
5576 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5577 intel_set_pch_fifo_underrun_reporting(dev_priv
, pipe
, true);
5580 static void haswell_crtc_disable(struct intel_crtc_state
*old_crtc_state
,
5581 struct drm_atomic_state
*old_state
)
5583 struct drm_crtc
*crtc
= old_crtc_state
->base
.crtc
;
5584 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
5585 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5586 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
5588 if (intel_crtc
->config
->has_pch_encoder
)
5589 intel_set_pch_fifo_underrun_reporting(dev_priv
, TRANSCODER_A
,
5592 intel_encoders_disable(crtc
, old_crtc_state
, old_state
);
5594 drm_crtc_vblank_off(crtc
);
5595 assert_vblank_disabled(crtc
);
5597 /* XXX: Do the pipe assertions at the right place for BXT DSI. */
5598 if (!transcoder_is_dsi(cpu_transcoder
))
5599 intel_disable_pipe(intel_crtc
);
5601 if (intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_DP_MST
))
5602 intel_ddi_set_vc_payload_alloc(crtc
, false);
5604 if (!transcoder_is_dsi(cpu_transcoder
))
5605 intel_ddi_disable_transcoder_func(dev_priv
, cpu_transcoder
);
5607 if (INTEL_GEN(dev_priv
) >= 9)
5608 skylake_scaler_disable(intel_crtc
);
5610 ironlake_pfit_disable(intel_crtc
, false);
5612 if (!transcoder_is_dsi(cpu_transcoder
))
5613 intel_ddi_disable_pipe_clock(intel_crtc
);
5615 intel_encoders_post_disable(crtc
, old_crtc_state
, old_state
);
5617 if (old_crtc_state
->has_pch_encoder
)
5618 intel_set_pch_fifo_underrun_reporting(dev_priv
, TRANSCODER_A
,
5622 static void i9xx_pfit_enable(struct intel_crtc
*crtc
)
5624 struct drm_device
*dev
= crtc
->base
.dev
;
5625 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5626 struct intel_crtc_state
*pipe_config
= crtc
->config
;
5628 if (!pipe_config
->gmch_pfit
.control
)
5632 * The panel fitter should only be adjusted whilst the pipe is disabled,
5633 * according to register description and PRM.
5635 WARN_ON(I915_READ(PFIT_CONTROL
) & PFIT_ENABLE
);
5636 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
5638 I915_WRITE(PFIT_PGM_RATIOS
, pipe_config
->gmch_pfit
.pgm_ratios
);
5639 I915_WRITE(PFIT_CONTROL
, pipe_config
->gmch_pfit
.control
);
5641 /* Border color in case we don't scale up to the full screen. Black by
5642 * default, change to something else for debugging. */
5643 I915_WRITE(BCLRPAT(crtc
->pipe
), 0);
5646 static enum intel_display_power_domain
port_to_power_domain(enum port port
)
5650 return POWER_DOMAIN_PORT_DDI_A_LANES
;
5652 return POWER_DOMAIN_PORT_DDI_B_LANES
;
5654 return POWER_DOMAIN_PORT_DDI_C_LANES
;
5656 return POWER_DOMAIN_PORT_DDI_D_LANES
;
5658 return POWER_DOMAIN_PORT_DDI_E_LANES
;
5661 return POWER_DOMAIN_PORT_OTHER
;
5665 static enum intel_display_power_domain
port_to_aux_power_domain(enum port port
)
5669 return POWER_DOMAIN_AUX_A
;
5671 return POWER_DOMAIN_AUX_B
;
5673 return POWER_DOMAIN_AUX_C
;
5675 return POWER_DOMAIN_AUX_D
;
5677 /* FIXME: Check VBT for actual wiring of PORT E */
5678 return POWER_DOMAIN_AUX_D
;
5681 return POWER_DOMAIN_AUX_A
;
5685 enum intel_display_power_domain
5686 intel_display_port_power_domain(struct intel_encoder
*intel_encoder
)
5688 struct drm_i915_private
*dev_priv
= to_i915(intel_encoder
->base
.dev
);
5689 struct intel_digital_port
*intel_dig_port
;
5691 switch (intel_encoder
->type
) {
5692 case INTEL_OUTPUT_UNKNOWN
:
5693 /* Only DDI platforms should ever use this output type */
5694 WARN_ON_ONCE(!HAS_DDI(dev_priv
));
5695 case INTEL_OUTPUT_DP
:
5696 case INTEL_OUTPUT_HDMI
:
5697 case INTEL_OUTPUT_EDP
:
5698 intel_dig_port
= enc_to_dig_port(&intel_encoder
->base
);
5699 return port_to_power_domain(intel_dig_port
->port
);
5700 case INTEL_OUTPUT_DP_MST
:
5701 intel_dig_port
= enc_to_mst(&intel_encoder
->base
)->primary
;
5702 return port_to_power_domain(intel_dig_port
->port
);
5703 case INTEL_OUTPUT_ANALOG
:
5704 return POWER_DOMAIN_PORT_CRT
;
5705 case INTEL_OUTPUT_DSI
:
5706 return POWER_DOMAIN_PORT_DSI
;
5708 return POWER_DOMAIN_PORT_OTHER
;
5712 enum intel_display_power_domain
5713 intel_display_port_aux_power_domain(struct intel_encoder
*intel_encoder
)
5715 struct drm_i915_private
*dev_priv
= to_i915(intel_encoder
->base
.dev
);
5716 struct intel_digital_port
*intel_dig_port
;
5718 switch (intel_encoder
->type
) {
5719 case INTEL_OUTPUT_UNKNOWN
:
5720 case INTEL_OUTPUT_HDMI
:
5722 * Only DDI platforms should ever use these output types.
5723 * We can get here after the HDMI detect code has already set
5724 * the type of the shared encoder. Since we can't be sure
5725 * what's the status of the given connectors, play safe and
5726 * run the DP detection too.
5728 WARN_ON_ONCE(!HAS_DDI(dev_priv
));
5729 case INTEL_OUTPUT_DP
:
5730 case INTEL_OUTPUT_EDP
:
5731 intel_dig_port
= enc_to_dig_port(&intel_encoder
->base
);
5732 return port_to_aux_power_domain(intel_dig_port
->port
);
5733 case INTEL_OUTPUT_DP_MST
:
5734 intel_dig_port
= enc_to_mst(&intel_encoder
->base
)->primary
;
5735 return port_to_aux_power_domain(intel_dig_port
->port
);
5737 MISSING_CASE(intel_encoder
->type
);
5738 return POWER_DOMAIN_AUX_A
;
5742 static unsigned long get_crtc_power_domains(struct drm_crtc
*crtc
,
5743 struct intel_crtc_state
*crtc_state
)
5745 struct drm_device
*dev
= crtc
->dev
;
5746 struct drm_encoder
*encoder
;
5747 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5748 enum pipe pipe
= intel_crtc
->pipe
;
5750 enum transcoder transcoder
= crtc_state
->cpu_transcoder
;
5752 if (!crtc_state
->base
.active
)
5755 mask
= BIT(POWER_DOMAIN_PIPE(pipe
));
5756 mask
|= BIT(POWER_DOMAIN_TRANSCODER(transcoder
));
5757 if (crtc_state
->pch_pfit
.enabled
||
5758 crtc_state
->pch_pfit
.force_thru
)
5759 mask
|= BIT(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe
));
5761 drm_for_each_encoder_mask(encoder
, dev
, crtc_state
->base
.encoder_mask
) {
5762 struct intel_encoder
*intel_encoder
= to_intel_encoder(encoder
);
5764 mask
|= BIT(intel_display_port_power_domain(intel_encoder
));
5767 if (crtc_state
->shared_dpll
)
5768 mask
|= BIT(POWER_DOMAIN_PLLS
);
5773 static unsigned long
5774 modeset_get_crtc_power_domains(struct drm_crtc
*crtc
,
5775 struct intel_crtc_state
*crtc_state
)
5777 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
5778 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5779 enum intel_display_power_domain domain
;
5780 unsigned long domains
, new_domains
, old_domains
;
5782 old_domains
= intel_crtc
->enabled_power_domains
;
5783 intel_crtc
->enabled_power_domains
= new_domains
=
5784 get_crtc_power_domains(crtc
, crtc_state
);
5786 domains
= new_domains
& ~old_domains
;
5788 for_each_power_domain(domain
, domains
)
5789 intel_display_power_get(dev_priv
, domain
);
5791 return old_domains
& ~new_domains
;
5794 static void modeset_put_power_domains(struct drm_i915_private
*dev_priv
,
5795 unsigned long domains
)
5797 enum intel_display_power_domain domain
;
5799 for_each_power_domain(domain
, domains
)
5800 intel_display_power_put(dev_priv
, domain
);
5803 static int intel_compute_max_dotclk(struct drm_i915_private
*dev_priv
)
5805 int max_cdclk_freq
= dev_priv
->max_cdclk_freq
;
5807 if (INTEL_INFO(dev_priv
)->gen
>= 9 ||
5808 IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
))
5809 return max_cdclk_freq
;
5810 else if (IS_CHERRYVIEW(dev_priv
))
5811 return max_cdclk_freq
*95/100;
5812 else if (INTEL_INFO(dev_priv
)->gen
< 4)
5813 return 2*max_cdclk_freq
*90/100;
5815 return max_cdclk_freq
*90/100;
5818 static int skl_calc_cdclk(int max_pixclk
, int vco
);
5820 static void intel_update_max_cdclk(struct drm_i915_private
*dev_priv
)
5822 if (IS_SKYLAKE(dev_priv
) || IS_KABYLAKE(dev_priv
)) {
5823 u32 limit
= I915_READ(SKL_DFSM
) & SKL_DFSM_CDCLK_LIMIT_MASK
;
5826 vco
= dev_priv
->skl_preferred_vco_freq
;
5827 WARN_ON(vco
!= 8100000 && vco
!= 8640000);
5830 * Use the lower (vco 8640) cdclk values as a
5831 * first guess. skl_calc_cdclk() will correct it
5832 * if the preferred vco is 8100 instead.
5834 if (limit
== SKL_DFSM_CDCLK_LIMIT_675
)
5836 else if (limit
== SKL_DFSM_CDCLK_LIMIT_540
)
5838 else if (limit
== SKL_DFSM_CDCLK_LIMIT_450
)
5843 dev_priv
->max_cdclk_freq
= skl_calc_cdclk(max_cdclk
, vco
);
5844 } else if (IS_BROXTON(dev_priv
)) {
5845 dev_priv
->max_cdclk_freq
= 624000;
5846 } else if (IS_BROADWELL(dev_priv
)) {
5848 * FIXME with extra cooling we can allow
5849 * 540 MHz for ULX and 675 Mhz for ULT.
5850 * How can we know if extra cooling is
5851 * available? PCI ID, VTB, something else?
5853 if (I915_READ(FUSE_STRAP
) & HSW_CDCLK_LIMIT
)
5854 dev_priv
->max_cdclk_freq
= 450000;
5855 else if (IS_BDW_ULX(dev_priv
))
5856 dev_priv
->max_cdclk_freq
= 450000;
5857 else if (IS_BDW_ULT(dev_priv
))
5858 dev_priv
->max_cdclk_freq
= 540000;
5860 dev_priv
->max_cdclk_freq
= 675000;
5861 } else if (IS_CHERRYVIEW(dev_priv
)) {
5862 dev_priv
->max_cdclk_freq
= 320000;
5863 } else if (IS_VALLEYVIEW(dev_priv
)) {
5864 dev_priv
->max_cdclk_freq
= 400000;
5866 /* otherwise assume cdclk is fixed */
5867 dev_priv
->max_cdclk_freq
= dev_priv
->cdclk_freq
;
5870 dev_priv
->max_dotclk_freq
= intel_compute_max_dotclk(dev_priv
);
5872 DRM_DEBUG_DRIVER("Max CD clock rate: %d kHz\n",
5873 dev_priv
->max_cdclk_freq
);
5875 DRM_DEBUG_DRIVER("Max dotclock rate: %d kHz\n",
5876 dev_priv
->max_dotclk_freq
);
5879 static void intel_update_cdclk(struct drm_i915_private
*dev_priv
)
5881 dev_priv
->cdclk_freq
= dev_priv
->display
.get_display_clock_speed(dev_priv
);
5883 if (INTEL_GEN(dev_priv
) >= 9)
5884 DRM_DEBUG_DRIVER("Current CD clock rate: %d kHz, VCO: %d kHz, ref: %d kHz\n",
5885 dev_priv
->cdclk_freq
, dev_priv
->cdclk_pll
.vco
,
5886 dev_priv
->cdclk_pll
.ref
);
5888 DRM_DEBUG_DRIVER("Current CD clock rate: %d kHz\n",
5889 dev_priv
->cdclk_freq
);
5892 * 9:0 CMBUS [sic] CDCLK frequency (cdfreq):
5893 * Programmng [sic] note: bit[9:2] should be programmed to the number
5894 * of cdclk that generates 4MHz reference clock freq which is used to
5895 * generate GMBus clock. This will vary with the cdclk freq.
5897 if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
5898 I915_WRITE(GMBUSFREQ_VLV
, DIV_ROUND_UP(dev_priv
->cdclk_freq
, 1000));
5901 /* convert from kHz to .1 fixpoint MHz with -1MHz offset */
5902 static int skl_cdclk_decimal(int cdclk
)
5904 return DIV_ROUND_CLOSEST(cdclk
- 1000, 500);
5907 static int bxt_de_pll_vco(struct drm_i915_private
*dev_priv
, int cdclk
)
5911 if (cdclk
== dev_priv
->cdclk_pll
.ref
)
5916 MISSING_CASE(cdclk
);
5928 return dev_priv
->cdclk_pll
.ref
* ratio
;
5931 static void bxt_de_pll_disable(struct drm_i915_private
*dev_priv
)
5933 I915_WRITE(BXT_DE_PLL_ENABLE
, 0);
5936 if (intel_wait_for_register(dev_priv
,
5937 BXT_DE_PLL_ENABLE
, BXT_DE_PLL_LOCK
, 0,
5939 DRM_ERROR("timeout waiting for DE PLL unlock\n");
5941 dev_priv
->cdclk_pll
.vco
= 0;
5944 static void bxt_de_pll_enable(struct drm_i915_private
*dev_priv
, int vco
)
5946 int ratio
= DIV_ROUND_CLOSEST(vco
, dev_priv
->cdclk_pll
.ref
);
5949 val
= I915_READ(BXT_DE_PLL_CTL
);
5950 val
&= ~BXT_DE_PLL_RATIO_MASK
;
5951 val
|= BXT_DE_PLL_RATIO(ratio
);
5952 I915_WRITE(BXT_DE_PLL_CTL
, val
);
5954 I915_WRITE(BXT_DE_PLL_ENABLE
, BXT_DE_PLL_PLL_ENABLE
);
5957 if (intel_wait_for_register(dev_priv
,
5962 DRM_ERROR("timeout waiting for DE PLL lock\n");
5964 dev_priv
->cdclk_pll
.vco
= vco
;
5967 static void bxt_set_cdclk(struct drm_i915_private
*dev_priv
, int cdclk
)
5972 vco
= bxt_de_pll_vco(dev_priv
, cdclk
);
5974 DRM_DEBUG_DRIVER("Changing CDCLK to %d kHz (VCO %d kHz)\n", cdclk
, vco
);
5976 /* cdclk = vco / 2 / div{1,1.5,2,4} */
5977 switch (DIV_ROUND_CLOSEST(vco
, cdclk
)) {
5979 divider
= BXT_CDCLK_CD2X_DIV_SEL_4
;
5982 divider
= BXT_CDCLK_CD2X_DIV_SEL_2
;
5985 divider
= BXT_CDCLK_CD2X_DIV_SEL_1_5
;
5988 divider
= BXT_CDCLK_CD2X_DIV_SEL_1
;
5991 WARN_ON(cdclk
!= dev_priv
->cdclk_pll
.ref
);
5994 divider
= BXT_CDCLK_CD2X_DIV_SEL_1
;
5998 /* Inform power controller of upcoming frequency change */
5999 mutex_lock(&dev_priv
->rps
.hw_lock
);
6000 ret
= sandybridge_pcode_write(dev_priv
, HSW_PCODE_DE_WRITE_FREQ_REQ
,
6002 mutex_unlock(&dev_priv
->rps
.hw_lock
);
6005 DRM_ERROR("PCode CDCLK freq change notify failed (err %d, freq %d)\n",
6010 if (dev_priv
->cdclk_pll
.vco
!= 0 &&
6011 dev_priv
->cdclk_pll
.vco
!= vco
)
6012 bxt_de_pll_disable(dev_priv
);
6014 if (dev_priv
->cdclk_pll
.vco
!= vco
)
6015 bxt_de_pll_enable(dev_priv
, vco
);
6017 val
= divider
| skl_cdclk_decimal(cdclk
);
6019 * FIXME if only the cd2x divider needs changing, it could be done
6020 * without shutting off the pipe (if only one pipe is active).
6022 val
|= BXT_CDCLK_CD2X_PIPE_NONE
;
6024 * Disable SSA Precharge when CD clock frequency < 500 MHz,
6027 if (cdclk
>= 500000)
6028 val
|= BXT_CDCLK_SSA_PRECHARGE_ENABLE
;
6029 I915_WRITE(CDCLK_CTL
, val
);
6031 mutex_lock(&dev_priv
->rps
.hw_lock
);
6032 ret
= sandybridge_pcode_write(dev_priv
, HSW_PCODE_DE_WRITE_FREQ_REQ
,
6033 DIV_ROUND_UP(cdclk
, 25000));
6034 mutex_unlock(&dev_priv
->rps
.hw_lock
);
6037 DRM_ERROR("PCode CDCLK freq set failed, (err %d, freq %d)\n",
6042 intel_update_cdclk(dev_priv
);
6045 static void bxt_sanitize_cdclk(struct drm_i915_private
*dev_priv
)
6047 u32 cdctl
, expected
;
6049 intel_update_cdclk(dev_priv
);
6051 if (dev_priv
->cdclk_pll
.vco
== 0 ||
6052 dev_priv
->cdclk_freq
== dev_priv
->cdclk_pll
.ref
)
6055 /* DPLL okay; verify the cdclock
6057 * Some BIOS versions leave an incorrect decimal frequency value and
6058 * set reserved MBZ bits in CDCLK_CTL at least during exiting from S4,
6059 * so sanitize this register.
6061 cdctl
= I915_READ(CDCLK_CTL
);
6063 * Let's ignore the pipe field, since BIOS could have configured the
6064 * dividers both synching to an active pipe, or asynchronously
6067 cdctl
&= ~BXT_CDCLK_CD2X_PIPE_NONE
;
6069 expected
= (cdctl
& BXT_CDCLK_CD2X_DIV_SEL_MASK
) |
6070 skl_cdclk_decimal(dev_priv
->cdclk_freq
);
6072 * Disable SSA Precharge when CD clock frequency < 500 MHz,
6075 if (dev_priv
->cdclk_freq
>= 500000)
6076 expected
|= BXT_CDCLK_SSA_PRECHARGE_ENABLE
;
6078 if (cdctl
== expected
)
6079 /* All well; nothing to sanitize */
6083 DRM_DEBUG_KMS("Sanitizing cdclk programmed by pre-os\n");
6085 /* force cdclk programming */
6086 dev_priv
->cdclk_freq
= 0;
6088 /* force full PLL disable + enable */
6089 dev_priv
->cdclk_pll
.vco
= -1;
6092 void bxt_init_cdclk(struct drm_i915_private
*dev_priv
)
6094 bxt_sanitize_cdclk(dev_priv
);
6096 if (dev_priv
->cdclk_freq
!= 0 && dev_priv
->cdclk_pll
.vco
!= 0)
6101 * - The initial CDCLK needs to be read from VBT.
6102 * Need to make this change after VBT has changes for BXT.
6104 bxt_set_cdclk(dev_priv
, bxt_calc_cdclk(0));
6107 void bxt_uninit_cdclk(struct drm_i915_private
*dev_priv
)
6109 bxt_set_cdclk(dev_priv
, dev_priv
->cdclk_pll
.ref
);
6112 static int skl_calc_cdclk(int max_pixclk
, int vco
)
6114 if (vco
== 8640000) {
6115 if (max_pixclk
> 540000)
6117 else if (max_pixclk
> 432000)
6119 else if (max_pixclk
> 308571)
6124 if (max_pixclk
> 540000)
6126 else if (max_pixclk
> 450000)
6128 else if (max_pixclk
> 337500)
6136 skl_dpll0_update(struct drm_i915_private
*dev_priv
)
6140 dev_priv
->cdclk_pll
.ref
= 24000;
6141 dev_priv
->cdclk_pll
.vco
= 0;
6143 val
= I915_READ(LCPLL1_CTL
);
6144 if ((val
& LCPLL_PLL_ENABLE
) == 0)
6147 if (WARN_ON((val
& LCPLL_PLL_LOCK
) == 0))
6150 val
= I915_READ(DPLL_CTRL1
);
6152 if (WARN_ON((val
& (DPLL_CTRL1_HDMI_MODE(SKL_DPLL0
) |
6153 DPLL_CTRL1_SSC(SKL_DPLL0
) |
6154 DPLL_CTRL1_OVERRIDE(SKL_DPLL0
))) !=
6155 DPLL_CTRL1_OVERRIDE(SKL_DPLL0
)))
6158 switch (val
& DPLL_CTRL1_LINK_RATE_MASK(SKL_DPLL0
)) {
6159 case DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_810
, SKL_DPLL0
):
6160 case DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_1350
, SKL_DPLL0
):
6161 case DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_1620
, SKL_DPLL0
):
6162 case DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_2700
, SKL_DPLL0
):
6163 dev_priv
->cdclk_pll
.vco
= 8100000;
6165 case DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_1080
, SKL_DPLL0
):
6166 case DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_2160
, SKL_DPLL0
):
6167 dev_priv
->cdclk_pll
.vco
= 8640000;
6170 MISSING_CASE(val
& DPLL_CTRL1_LINK_RATE_MASK(SKL_DPLL0
));
6175 void skl_set_preferred_cdclk_vco(struct drm_i915_private
*dev_priv
, int vco
)
6177 bool changed
= dev_priv
->skl_preferred_vco_freq
!= vco
;
6179 dev_priv
->skl_preferred_vco_freq
= vco
;
6182 intel_update_max_cdclk(dev_priv
);
6186 skl_dpll0_enable(struct drm_i915_private
*dev_priv
, int vco
)
6188 int min_cdclk
= skl_calc_cdclk(0, vco
);
6191 WARN_ON(vco
!= 8100000 && vco
!= 8640000);
6193 /* select the minimum CDCLK before enabling DPLL 0 */
6194 val
= CDCLK_FREQ_337_308
| skl_cdclk_decimal(min_cdclk
);
6195 I915_WRITE(CDCLK_CTL
, val
);
6196 POSTING_READ(CDCLK_CTL
);
6199 * We always enable DPLL0 with the lowest link rate possible, but still
6200 * taking into account the VCO required to operate the eDP panel at the
6201 * desired frequency. The usual DP link rates operate with a VCO of
6202 * 8100 while the eDP 1.4 alternate link rates need a VCO of 8640.
6203 * The modeset code is responsible for the selection of the exact link
6204 * rate later on, with the constraint of choosing a frequency that
6207 val
= I915_READ(DPLL_CTRL1
);
6209 val
&= ~(DPLL_CTRL1_HDMI_MODE(SKL_DPLL0
) | DPLL_CTRL1_SSC(SKL_DPLL0
) |
6210 DPLL_CTRL1_LINK_RATE_MASK(SKL_DPLL0
));
6211 val
|= DPLL_CTRL1_OVERRIDE(SKL_DPLL0
);
6213 val
|= DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_1080
,
6216 val
|= DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_810
,
6219 I915_WRITE(DPLL_CTRL1
, val
);
6220 POSTING_READ(DPLL_CTRL1
);
6222 I915_WRITE(LCPLL1_CTL
, I915_READ(LCPLL1_CTL
) | LCPLL_PLL_ENABLE
);
6224 if (intel_wait_for_register(dev_priv
,
6225 LCPLL1_CTL
, LCPLL_PLL_LOCK
, LCPLL_PLL_LOCK
,
6227 DRM_ERROR("DPLL0 not locked\n");
6229 dev_priv
->cdclk_pll
.vco
= vco
;
6231 /* We'll want to keep using the current vco from now on. */
6232 skl_set_preferred_cdclk_vco(dev_priv
, vco
);
6236 skl_dpll0_disable(struct drm_i915_private
*dev_priv
)
6238 I915_WRITE(LCPLL1_CTL
, I915_READ(LCPLL1_CTL
) & ~LCPLL_PLL_ENABLE
);
6239 if (intel_wait_for_register(dev_priv
,
6240 LCPLL1_CTL
, LCPLL_PLL_LOCK
, 0,
6242 DRM_ERROR("Couldn't disable DPLL0\n");
6244 dev_priv
->cdclk_pll
.vco
= 0;
6247 static bool skl_cdclk_pcu_ready(struct drm_i915_private
*dev_priv
)
6252 /* inform PCU we want to change CDCLK */
6253 val
= SKL_CDCLK_PREPARE_FOR_CHANGE
;
6254 mutex_lock(&dev_priv
->rps
.hw_lock
);
6255 ret
= sandybridge_pcode_read(dev_priv
, SKL_PCODE_CDCLK_CONTROL
, &val
);
6256 mutex_unlock(&dev_priv
->rps
.hw_lock
);
6258 return ret
== 0 && (val
& SKL_CDCLK_READY_FOR_CHANGE
);
6261 static bool skl_cdclk_wait_for_pcu_ready(struct drm_i915_private
*dev_priv
)
6263 return _wait_for(skl_cdclk_pcu_ready(dev_priv
), 3000, 10) == 0;
6266 static void skl_set_cdclk(struct drm_i915_private
*dev_priv
, int cdclk
, int vco
)
6268 u32 freq_select
, pcu_ack
;
6270 WARN_ON((cdclk
== 24000) != (vco
== 0));
6272 DRM_DEBUG_DRIVER("Changing CDCLK to %d kHz (VCO %d kHz)\n", cdclk
, vco
);
6274 if (!skl_cdclk_wait_for_pcu_ready(dev_priv
)) {
6275 DRM_ERROR("failed to inform PCU about cdclk change\n");
6283 freq_select
= CDCLK_FREQ_450_432
;
6287 freq_select
= CDCLK_FREQ_540
;
6293 freq_select
= CDCLK_FREQ_337_308
;
6298 freq_select
= CDCLK_FREQ_675_617
;
6303 if (dev_priv
->cdclk_pll
.vco
!= 0 &&
6304 dev_priv
->cdclk_pll
.vco
!= vco
)
6305 skl_dpll0_disable(dev_priv
);
6307 if (dev_priv
->cdclk_pll
.vco
!= vco
)
6308 skl_dpll0_enable(dev_priv
, vco
);
6310 I915_WRITE(CDCLK_CTL
, freq_select
| skl_cdclk_decimal(cdclk
));
6311 POSTING_READ(CDCLK_CTL
);
6313 /* inform PCU of the change */
6314 mutex_lock(&dev_priv
->rps
.hw_lock
);
6315 sandybridge_pcode_write(dev_priv
, SKL_PCODE_CDCLK_CONTROL
, pcu_ack
);
6316 mutex_unlock(&dev_priv
->rps
.hw_lock
);
6318 intel_update_cdclk(dev_priv
);
6321 static void skl_sanitize_cdclk(struct drm_i915_private
*dev_priv
);
6323 void skl_uninit_cdclk(struct drm_i915_private
*dev_priv
)
6325 skl_set_cdclk(dev_priv
, dev_priv
->cdclk_pll
.ref
, 0);
6328 void skl_init_cdclk(struct drm_i915_private
*dev_priv
)
6332 skl_sanitize_cdclk(dev_priv
);
6334 if (dev_priv
->cdclk_freq
!= 0 && dev_priv
->cdclk_pll
.vco
!= 0) {
6336 * Use the current vco as our initial
6337 * guess as to what the preferred vco is.
6339 if (dev_priv
->skl_preferred_vco_freq
== 0)
6340 skl_set_preferred_cdclk_vco(dev_priv
,
6341 dev_priv
->cdclk_pll
.vco
);
6345 vco
= dev_priv
->skl_preferred_vco_freq
;
6348 cdclk
= skl_calc_cdclk(0, vco
);
6350 skl_set_cdclk(dev_priv
, cdclk
, vco
);
6353 static void skl_sanitize_cdclk(struct drm_i915_private
*dev_priv
)
6355 uint32_t cdctl
, expected
;
6358 * check if the pre-os intialized the display
6359 * There is SWF18 scratchpad register defined which is set by the
6360 * pre-os which can be used by the OS drivers to check the status
6362 if ((I915_READ(SWF_ILK(0x18)) & 0x00FFFFFF) == 0)
6365 intel_update_cdclk(dev_priv
);
6366 /* Is PLL enabled and locked ? */
6367 if (dev_priv
->cdclk_pll
.vco
== 0 ||
6368 dev_priv
->cdclk_freq
== dev_priv
->cdclk_pll
.ref
)
6371 /* DPLL okay; verify the cdclock
6373 * Noticed in some instances that the freq selection is correct but
6374 * decimal part is programmed wrong from BIOS where pre-os does not
6375 * enable display. Verify the same as well.
6377 cdctl
= I915_READ(CDCLK_CTL
);
6378 expected
= (cdctl
& CDCLK_FREQ_SEL_MASK
) |
6379 skl_cdclk_decimal(dev_priv
->cdclk_freq
);
6380 if (cdctl
== expected
)
6381 /* All well; nothing to sanitize */
6385 DRM_DEBUG_KMS("Sanitizing cdclk programmed by pre-os\n");
6387 /* force cdclk programming */
6388 dev_priv
->cdclk_freq
= 0;
6389 /* force full PLL disable + enable */
6390 dev_priv
->cdclk_pll
.vco
= -1;
6393 /* Adjust CDclk dividers to allow high res or save power if possible */
6394 static void valleyview_set_cdclk(struct drm_device
*dev
, int cdclk
)
6396 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6399 WARN_ON(dev_priv
->display
.get_display_clock_speed(dev_priv
)
6400 != dev_priv
->cdclk_freq
);
6402 if (cdclk
>= 320000) /* jump to highest voltage for 400MHz too */
6404 else if (cdclk
== 266667)
6409 mutex_lock(&dev_priv
->rps
.hw_lock
);
6410 val
= vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
);
6411 val
&= ~DSPFREQGUAR_MASK
;
6412 val
|= (cmd
<< DSPFREQGUAR_SHIFT
);
6413 vlv_punit_write(dev_priv
, PUNIT_REG_DSPFREQ
, val
);
6414 if (wait_for((vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
) &
6415 DSPFREQSTAT_MASK
) == (cmd
<< DSPFREQSTAT_SHIFT
),
6417 DRM_ERROR("timed out waiting for CDclk change\n");
6419 mutex_unlock(&dev_priv
->rps
.hw_lock
);
6421 mutex_lock(&dev_priv
->sb_lock
);
6423 if (cdclk
== 400000) {
6426 divider
= DIV_ROUND_CLOSEST(dev_priv
->hpll_freq
<< 1, cdclk
) - 1;
6428 /* adjust cdclk divider */
6429 val
= vlv_cck_read(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
);
6430 val
&= ~CCK_FREQUENCY_VALUES
;
6432 vlv_cck_write(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
, val
);
6434 if (wait_for((vlv_cck_read(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
) &
6435 CCK_FREQUENCY_STATUS
) == (divider
<< CCK_FREQUENCY_STATUS_SHIFT
),
6437 DRM_ERROR("timed out waiting for CDclk change\n");
6440 /* adjust self-refresh exit latency value */
6441 val
= vlv_bunit_read(dev_priv
, BUNIT_REG_BISOC
);
6445 * For high bandwidth configs, we set a higher latency in the bunit
6446 * so that the core display fetch happens in time to avoid underruns.
6448 if (cdclk
== 400000)
6449 val
|= 4500 / 250; /* 4.5 usec */
6451 val
|= 3000 / 250; /* 3.0 usec */
6452 vlv_bunit_write(dev_priv
, BUNIT_REG_BISOC
, val
);
6454 mutex_unlock(&dev_priv
->sb_lock
);
6456 intel_update_cdclk(dev_priv
);
6459 static void cherryview_set_cdclk(struct drm_device
*dev
, int cdclk
)
6461 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6464 WARN_ON(dev_priv
->display
.get_display_clock_speed(dev_priv
)
6465 != dev_priv
->cdclk_freq
);
6474 MISSING_CASE(cdclk
);
6479 * Specs are full of misinformation, but testing on actual
6480 * hardware has shown that we just need to write the desired
6481 * CCK divider into the Punit register.
6483 cmd
= DIV_ROUND_CLOSEST(dev_priv
->hpll_freq
<< 1, cdclk
) - 1;
6485 mutex_lock(&dev_priv
->rps
.hw_lock
);
6486 val
= vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
);
6487 val
&= ~DSPFREQGUAR_MASK_CHV
;
6488 val
|= (cmd
<< DSPFREQGUAR_SHIFT_CHV
);
6489 vlv_punit_write(dev_priv
, PUNIT_REG_DSPFREQ
, val
);
6490 if (wait_for((vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
) &
6491 DSPFREQSTAT_MASK_CHV
) == (cmd
<< DSPFREQSTAT_SHIFT_CHV
),
6493 DRM_ERROR("timed out waiting for CDclk change\n");
6495 mutex_unlock(&dev_priv
->rps
.hw_lock
);
6497 intel_update_cdclk(dev_priv
);
6500 static int valleyview_calc_cdclk(struct drm_i915_private
*dev_priv
,
6503 int freq_320
= (dev_priv
->hpll_freq
<< 1) % 320000 != 0 ? 333333 : 320000;
6504 int limit
= IS_CHERRYVIEW(dev_priv
) ? 95 : 90;
6507 * Really only a few cases to deal with, as only 4 CDclks are supported:
6510 * 320/333MHz (depends on HPLL freq)
6512 * So we check to see whether we're above 90% (VLV) or 95% (CHV)
6513 * of the lower bin and adjust if needed.
6515 * We seem to get an unstable or solid color picture at 200MHz.
6516 * Not sure what's wrong. For now use 200MHz only when all pipes
6519 if (!IS_CHERRYVIEW(dev_priv
) &&
6520 max_pixclk
> freq_320
*limit
/100)
6522 else if (max_pixclk
> 266667*limit
/100)
6524 else if (max_pixclk
> 0)
6530 static int bxt_calc_cdclk(int max_pixclk
)
6532 if (max_pixclk
> 576000)
6534 else if (max_pixclk
> 384000)
6536 else if (max_pixclk
> 288000)
6538 else if (max_pixclk
> 144000)
6544 /* Compute the max pixel clock for new configuration. */
6545 static int intel_mode_max_pixclk(struct drm_device
*dev
,
6546 struct drm_atomic_state
*state
)
6548 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
6549 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6550 struct drm_crtc
*crtc
;
6551 struct drm_crtc_state
*crtc_state
;
6552 unsigned max_pixclk
= 0, i
;
6555 memcpy(intel_state
->min_pixclk
, dev_priv
->min_pixclk
,
6556 sizeof(intel_state
->min_pixclk
));
6558 for_each_crtc_in_state(state
, crtc
, crtc_state
, i
) {
6561 if (crtc_state
->enable
)
6562 pixclk
= crtc_state
->adjusted_mode
.crtc_clock
;
6564 intel_state
->min_pixclk
[i
] = pixclk
;
6567 for_each_pipe(dev_priv
, pipe
)
6568 max_pixclk
= max(intel_state
->min_pixclk
[pipe
], max_pixclk
);
6573 static int valleyview_modeset_calc_cdclk(struct drm_atomic_state
*state
)
6575 struct drm_device
*dev
= state
->dev
;
6576 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6577 int max_pixclk
= intel_mode_max_pixclk(dev
, state
);
6578 struct intel_atomic_state
*intel_state
=
6579 to_intel_atomic_state(state
);
6581 intel_state
->cdclk
= intel_state
->dev_cdclk
=
6582 valleyview_calc_cdclk(dev_priv
, max_pixclk
);
6584 if (!intel_state
->active_crtcs
)
6585 intel_state
->dev_cdclk
= valleyview_calc_cdclk(dev_priv
, 0);
6590 static int bxt_modeset_calc_cdclk(struct drm_atomic_state
*state
)
6592 int max_pixclk
= ilk_max_pixel_rate(state
);
6593 struct intel_atomic_state
*intel_state
=
6594 to_intel_atomic_state(state
);
6596 intel_state
->cdclk
= intel_state
->dev_cdclk
=
6597 bxt_calc_cdclk(max_pixclk
);
6599 if (!intel_state
->active_crtcs
)
6600 intel_state
->dev_cdclk
= bxt_calc_cdclk(0);
6605 static void vlv_program_pfi_credits(struct drm_i915_private
*dev_priv
)
6607 unsigned int credits
, default_credits
;
6609 if (IS_CHERRYVIEW(dev_priv
))
6610 default_credits
= PFI_CREDIT(12);
6612 default_credits
= PFI_CREDIT(8);
6614 if (dev_priv
->cdclk_freq
>= dev_priv
->czclk_freq
) {
6615 /* CHV suggested value is 31 or 63 */
6616 if (IS_CHERRYVIEW(dev_priv
))
6617 credits
= PFI_CREDIT_63
;
6619 credits
= PFI_CREDIT(15);
6621 credits
= default_credits
;
6625 * WA - write default credits before re-programming
6626 * FIXME: should we also set the resend bit here?
6628 I915_WRITE(GCI_CONTROL
, VGA_FAST_MODE_DISABLE
|
6631 I915_WRITE(GCI_CONTROL
, VGA_FAST_MODE_DISABLE
|
6632 credits
| PFI_CREDIT_RESEND
);
6635 * FIXME is this guaranteed to clear
6636 * immediately or should we poll for it?
6638 WARN_ON(I915_READ(GCI_CONTROL
) & PFI_CREDIT_RESEND
);
6641 static void valleyview_modeset_commit_cdclk(struct drm_atomic_state
*old_state
)
6643 struct drm_device
*dev
= old_state
->dev
;
6644 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6645 struct intel_atomic_state
*old_intel_state
=
6646 to_intel_atomic_state(old_state
);
6647 unsigned req_cdclk
= old_intel_state
->dev_cdclk
;
6650 * FIXME: We can end up here with all power domains off, yet
6651 * with a CDCLK frequency other than the minimum. To account
6652 * for this take the PIPE-A power domain, which covers the HW
6653 * blocks needed for the following programming. This can be
6654 * removed once it's guaranteed that we get here either with
6655 * the minimum CDCLK set, or the required power domains
6658 intel_display_power_get(dev_priv
, POWER_DOMAIN_PIPE_A
);
6660 if (IS_CHERRYVIEW(dev_priv
))
6661 cherryview_set_cdclk(dev
, req_cdclk
);
6663 valleyview_set_cdclk(dev
, req_cdclk
);
6665 vlv_program_pfi_credits(dev_priv
);
6667 intel_display_power_put(dev_priv
, POWER_DOMAIN_PIPE_A
);
6670 static void valleyview_crtc_enable(struct intel_crtc_state
*pipe_config
,
6671 struct drm_atomic_state
*old_state
)
6673 struct drm_crtc
*crtc
= pipe_config
->base
.crtc
;
6674 struct drm_device
*dev
= crtc
->dev
;
6675 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6676 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6677 int pipe
= intel_crtc
->pipe
;
6679 if (WARN_ON(intel_crtc
->active
))
6682 if (intel_crtc_has_dp_encoder(intel_crtc
->config
))
6683 intel_dp_set_m_n(intel_crtc
, M1_N1
);
6685 intel_set_pipe_timings(intel_crtc
);
6686 intel_set_pipe_src_size(intel_crtc
);
6688 if (IS_CHERRYVIEW(dev_priv
) && pipe
== PIPE_B
) {
6689 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6691 I915_WRITE(CHV_BLEND(pipe
), CHV_BLEND_LEGACY
);
6692 I915_WRITE(CHV_CANVAS(pipe
), 0);
6695 i9xx_set_pipeconf(intel_crtc
);
6697 intel_crtc
->active
= true;
6699 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
6701 intel_encoders_pre_pll_enable(crtc
, pipe_config
, old_state
);
6703 if (IS_CHERRYVIEW(dev_priv
)) {
6704 chv_prepare_pll(intel_crtc
, intel_crtc
->config
);
6705 chv_enable_pll(intel_crtc
, intel_crtc
->config
);
6707 vlv_prepare_pll(intel_crtc
, intel_crtc
->config
);
6708 vlv_enable_pll(intel_crtc
, intel_crtc
->config
);
6711 intel_encoders_pre_enable(crtc
, pipe_config
, old_state
);
6713 i9xx_pfit_enable(intel_crtc
);
6715 intel_color_load_luts(&pipe_config
->base
);
6717 intel_update_watermarks(intel_crtc
);
6718 intel_enable_pipe(intel_crtc
);
6720 assert_vblank_disabled(crtc
);
6721 drm_crtc_vblank_on(crtc
);
6723 intel_encoders_enable(crtc
, pipe_config
, old_state
);
6726 static void i9xx_set_pll_dividers(struct intel_crtc
*crtc
)
6728 struct drm_device
*dev
= crtc
->base
.dev
;
6729 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6731 I915_WRITE(FP0(crtc
->pipe
), crtc
->config
->dpll_hw_state
.fp0
);
6732 I915_WRITE(FP1(crtc
->pipe
), crtc
->config
->dpll_hw_state
.fp1
);
6735 static void i9xx_crtc_enable(struct intel_crtc_state
*pipe_config
,
6736 struct drm_atomic_state
*old_state
)
6738 struct drm_crtc
*crtc
= pipe_config
->base
.crtc
;
6739 struct drm_device
*dev
= crtc
->dev
;
6740 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6741 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6742 enum pipe pipe
= intel_crtc
->pipe
;
6744 if (WARN_ON(intel_crtc
->active
))
6747 i9xx_set_pll_dividers(intel_crtc
);
6749 if (intel_crtc_has_dp_encoder(intel_crtc
->config
))
6750 intel_dp_set_m_n(intel_crtc
, M1_N1
);
6752 intel_set_pipe_timings(intel_crtc
);
6753 intel_set_pipe_src_size(intel_crtc
);
6755 i9xx_set_pipeconf(intel_crtc
);
6757 intel_crtc
->active
= true;
6759 if (!IS_GEN2(dev_priv
))
6760 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
6762 intel_encoders_pre_enable(crtc
, pipe_config
, old_state
);
6764 i9xx_enable_pll(intel_crtc
);
6766 i9xx_pfit_enable(intel_crtc
);
6768 intel_color_load_luts(&pipe_config
->base
);
6770 intel_update_watermarks(intel_crtc
);
6771 intel_enable_pipe(intel_crtc
);
6773 assert_vblank_disabled(crtc
);
6774 drm_crtc_vblank_on(crtc
);
6776 intel_encoders_enable(crtc
, pipe_config
, old_state
);
6779 static void i9xx_pfit_disable(struct intel_crtc
*crtc
)
6781 struct drm_device
*dev
= crtc
->base
.dev
;
6782 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6784 if (!crtc
->config
->gmch_pfit
.control
)
6787 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
6789 DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n",
6790 I915_READ(PFIT_CONTROL
));
6791 I915_WRITE(PFIT_CONTROL
, 0);
6794 static void i9xx_crtc_disable(struct intel_crtc_state
*old_crtc_state
,
6795 struct drm_atomic_state
*old_state
)
6797 struct drm_crtc
*crtc
= old_crtc_state
->base
.crtc
;
6798 struct drm_device
*dev
= crtc
->dev
;
6799 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6800 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6801 int pipe
= intel_crtc
->pipe
;
6804 * On gen2 planes are double buffered but the pipe isn't, so we must
6805 * wait for planes to fully turn off before disabling the pipe.
6807 if (IS_GEN2(dev_priv
))
6808 intel_wait_for_vblank(dev_priv
, pipe
);
6810 intel_encoders_disable(crtc
, old_crtc_state
, old_state
);
6812 drm_crtc_vblank_off(crtc
);
6813 assert_vblank_disabled(crtc
);
6815 intel_disable_pipe(intel_crtc
);
6817 i9xx_pfit_disable(intel_crtc
);
6819 intel_encoders_post_disable(crtc
, old_crtc_state
, old_state
);
6821 if (!intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_DSI
)) {
6822 if (IS_CHERRYVIEW(dev_priv
))
6823 chv_disable_pll(dev_priv
, pipe
);
6824 else if (IS_VALLEYVIEW(dev_priv
))
6825 vlv_disable_pll(dev_priv
, pipe
);
6827 i9xx_disable_pll(intel_crtc
);
6830 intel_encoders_post_pll_disable(crtc
, old_crtc_state
, old_state
);
6832 if (!IS_GEN2(dev_priv
))
6833 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, false);
6836 static void intel_crtc_disable_noatomic(struct drm_crtc
*crtc
)
6838 struct intel_encoder
*encoder
;
6839 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6840 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
6841 enum intel_display_power_domain domain
;
6842 unsigned long domains
;
6843 struct drm_atomic_state
*state
;
6844 struct intel_crtc_state
*crtc_state
;
6847 if (!intel_crtc
->active
)
6850 if (to_intel_plane_state(crtc
->primary
->state
)->base
.visible
) {
6851 WARN_ON(intel_crtc
->flip_work
);
6853 intel_pre_disable_primary_noatomic(crtc
);
6855 intel_crtc_disable_planes(crtc
, 1 << drm_plane_index(crtc
->primary
));
6856 to_intel_plane_state(crtc
->primary
->state
)->base
.visible
= false;
6859 state
= drm_atomic_state_alloc(crtc
->dev
);
6860 state
->acquire_ctx
= crtc
->dev
->mode_config
.acquire_ctx
;
6862 /* Everything's already locked, -EDEADLK can't happen. */
6863 crtc_state
= intel_atomic_get_crtc_state(state
, intel_crtc
);
6864 ret
= drm_atomic_add_affected_connectors(state
, crtc
);
6866 WARN_ON(IS_ERR(crtc_state
) || ret
);
6868 dev_priv
->display
.crtc_disable(crtc_state
, state
);
6870 drm_atomic_state_put(state
);
6872 DRM_DEBUG_KMS("[CRTC:%d:%s] hw state adjusted, was enabled, now disabled\n",
6873 crtc
->base
.id
, crtc
->name
);
6875 WARN_ON(drm_atomic_set_mode_for_crtc(crtc
->state
, NULL
) < 0);
6876 crtc
->state
->active
= false;
6877 intel_crtc
->active
= false;
6878 crtc
->enabled
= false;
6879 crtc
->state
->connector_mask
= 0;
6880 crtc
->state
->encoder_mask
= 0;
6882 for_each_encoder_on_crtc(crtc
->dev
, crtc
, encoder
)
6883 encoder
->base
.crtc
= NULL
;
6885 intel_fbc_disable(intel_crtc
);
6886 intel_update_watermarks(intel_crtc
);
6887 intel_disable_shared_dpll(intel_crtc
);
6889 domains
= intel_crtc
->enabled_power_domains
;
6890 for_each_power_domain(domain
, domains
)
6891 intel_display_power_put(dev_priv
, domain
);
6892 intel_crtc
->enabled_power_domains
= 0;
6894 dev_priv
->active_crtcs
&= ~(1 << intel_crtc
->pipe
);
6895 dev_priv
->min_pixclk
[intel_crtc
->pipe
] = 0;
6899 * turn all crtc's off, but do not adjust state
6900 * This has to be paired with a call to intel_modeset_setup_hw_state.
6902 int intel_display_suspend(struct drm_device
*dev
)
6904 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6905 struct drm_atomic_state
*state
;
6908 state
= drm_atomic_helper_suspend(dev
);
6909 ret
= PTR_ERR_OR_ZERO(state
);
6911 DRM_ERROR("Suspending crtc's failed with %i\n", ret
);
6913 dev_priv
->modeset_restore_state
= state
;
6917 void intel_encoder_destroy(struct drm_encoder
*encoder
)
6919 struct intel_encoder
*intel_encoder
= to_intel_encoder(encoder
);
6921 drm_encoder_cleanup(encoder
);
6922 kfree(intel_encoder
);
6925 /* Cross check the actual hw state with our own modeset state tracking (and it's
6926 * internal consistency). */
6927 static void intel_connector_verify_state(struct intel_connector
*connector
)
6929 struct drm_crtc
*crtc
= connector
->base
.state
->crtc
;
6931 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
6932 connector
->base
.base
.id
,
6933 connector
->base
.name
);
6935 if (connector
->get_hw_state(connector
)) {
6936 struct intel_encoder
*encoder
= connector
->encoder
;
6937 struct drm_connector_state
*conn_state
= connector
->base
.state
;
6939 I915_STATE_WARN(!crtc
,
6940 "connector enabled without attached crtc\n");
6945 I915_STATE_WARN(!crtc
->state
->active
,
6946 "connector is active, but attached crtc isn't\n");
6948 if (!encoder
|| encoder
->type
== INTEL_OUTPUT_DP_MST
)
6951 I915_STATE_WARN(conn_state
->best_encoder
!= &encoder
->base
,
6952 "atomic encoder doesn't match attached encoder\n");
6954 I915_STATE_WARN(conn_state
->crtc
!= encoder
->base
.crtc
,
6955 "attached encoder crtc differs from connector crtc\n");
6957 I915_STATE_WARN(crtc
&& crtc
->state
->active
,
6958 "attached crtc is active, but connector isn't\n");
6959 I915_STATE_WARN(!crtc
&& connector
->base
.state
->best_encoder
,
6960 "best encoder set without crtc!\n");
6964 int intel_connector_init(struct intel_connector
*connector
)
6966 drm_atomic_helper_connector_reset(&connector
->base
);
6968 if (!connector
->base
.state
)
6974 struct intel_connector
*intel_connector_alloc(void)
6976 struct intel_connector
*connector
;
6978 connector
= kzalloc(sizeof *connector
, GFP_KERNEL
);
6982 if (intel_connector_init(connector
) < 0) {
6990 /* Simple connector->get_hw_state implementation for encoders that support only
6991 * one connector and no cloning and hence the encoder state determines the state
6992 * of the connector. */
6993 bool intel_connector_get_hw_state(struct intel_connector
*connector
)
6996 struct intel_encoder
*encoder
= connector
->encoder
;
6998 return encoder
->get_hw_state(encoder
, &pipe
);
7001 static int pipe_required_fdi_lanes(struct intel_crtc_state
*crtc_state
)
7003 if (crtc_state
->base
.enable
&& crtc_state
->has_pch_encoder
)
7004 return crtc_state
->fdi_lanes
;
7009 static int ironlake_check_fdi_lanes(struct drm_device
*dev
, enum pipe pipe
,
7010 struct intel_crtc_state
*pipe_config
)
7012 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7013 struct drm_atomic_state
*state
= pipe_config
->base
.state
;
7014 struct intel_crtc
*other_crtc
;
7015 struct intel_crtc_state
*other_crtc_state
;
7017 DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n",
7018 pipe_name(pipe
), pipe_config
->fdi_lanes
);
7019 if (pipe_config
->fdi_lanes
> 4) {
7020 DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n",
7021 pipe_name(pipe
), pipe_config
->fdi_lanes
);
7025 if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
)) {
7026 if (pipe_config
->fdi_lanes
> 2) {
7027 DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n",
7028 pipe_config
->fdi_lanes
);
7035 if (INTEL_INFO(dev_priv
)->num_pipes
== 2)
7038 /* Ivybridge 3 pipe is really complicated */
7043 if (pipe_config
->fdi_lanes
<= 2)
7046 other_crtc
= intel_get_crtc_for_pipe(dev_priv
, PIPE_C
);
7048 intel_atomic_get_crtc_state(state
, other_crtc
);
7049 if (IS_ERR(other_crtc_state
))
7050 return PTR_ERR(other_crtc_state
);
7052 if (pipe_required_fdi_lanes(other_crtc_state
) > 0) {
7053 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
7054 pipe_name(pipe
), pipe_config
->fdi_lanes
);
7059 if (pipe_config
->fdi_lanes
> 2) {
7060 DRM_DEBUG_KMS("only 2 lanes on pipe %c: required %i lanes\n",
7061 pipe_name(pipe
), pipe_config
->fdi_lanes
);
7065 other_crtc
= intel_get_crtc_for_pipe(dev_priv
, PIPE_B
);
7067 intel_atomic_get_crtc_state(state
, other_crtc
);
7068 if (IS_ERR(other_crtc_state
))
7069 return PTR_ERR(other_crtc_state
);
7071 if (pipe_required_fdi_lanes(other_crtc_state
) > 2) {
7072 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
7082 static int ironlake_fdi_compute_config(struct intel_crtc
*intel_crtc
,
7083 struct intel_crtc_state
*pipe_config
)
7085 struct drm_device
*dev
= intel_crtc
->base
.dev
;
7086 const struct drm_display_mode
*adjusted_mode
= &pipe_config
->base
.adjusted_mode
;
7087 int lane
, link_bw
, fdi_dotclock
, ret
;
7088 bool needs_recompute
= false;
7091 /* FDI is a binary signal running at ~2.7GHz, encoding
7092 * each output octet as 10 bits. The actual frequency
7093 * is stored as a divider into a 100MHz clock, and the
7094 * mode pixel clock is stored in units of 1KHz.
7095 * Hence the bw of each lane in terms of the mode signal
7098 link_bw
= intel_fdi_link_freq(to_i915(dev
), pipe_config
);
7100 fdi_dotclock
= adjusted_mode
->crtc_clock
;
7102 lane
= ironlake_get_lanes_required(fdi_dotclock
, link_bw
,
7103 pipe_config
->pipe_bpp
);
7105 pipe_config
->fdi_lanes
= lane
;
7107 intel_link_compute_m_n(pipe_config
->pipe_bpp
, lane
, fdi_dotclock
,
7108 link_bw
, &pipe_config
->fdi_m_n
);
7110 ret
= ironlake_check_fdi_lanes(dev
, intel_crtc
->pipe
, pipe_config
);
7111 if (ret
== -EINVAL
&& pipe_config
->pipe_bpp
> 6*3) {
7112 pipe_config
->pipe_bpp
-= 2*3;
7113 DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n",
7114 pipe_config
->pipe_bpp
);
7115 needs_recompute
= true;
7116 pipe_config
->bw_constrained
= true;
7121 if (needs_recompute
)
7127 static bool pipe_config_supports_ips(struct drm_i915_private
*dev_priv
,
7128 struct intel_crtc_state
*pipe_config
)
7130 if (pipe_config
->pipe_bpp
> 24)
7133 /* HSW can handle pixel rate up to cdclk? */
7134 if (IS_HASWELL(dev_priv
))
7138 * We compare against max which means we must take
7139 * the increased cdclk requirement into account when
7140 * calculating the new cdclk.
7142 * Should measure whether using a lower cdclk w/o IPS
7144 return ilk_pipe_pixel_rate(pipe_config
) <=
7145 dev_priv
->max_cdclk_freq
* 95 / 100;
7148 static void hsw_compute_ips_config(struct intel_crtc
*crtc
,
7149 struct intel_crtc_state
*pipe_config
)
7151 struct drm_device
*dev
= crtc
->base
.dev
;
7152 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7154 pipe_config
->ips_enabled
= i915
.enable_ips
&&
7155 hsw_crtc_supports_ips(crtc
) &&
7156 pipe_config_supports_ips(dev_priv
, pipe_config
);
7159 static bool intel_crtc_supports_double_wide(const struct intel_crtc
*crtc
)
7161 const struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
7163 /* GDG double wide on either pipe, otherwise pipe A only */
7164 return INTEL_INFO(dev_priv
)->gen
< 4 &&
7165 (crtc
->pipe
== PIPE_A
|| IS_I915G(dev_priv
));
7168 static int intel_crtc_compute_config(struct intel_crtc
*crtc
,
7169 struct intel_crtc_state
*pipe_config
)
7171 struct drm_device
*dev
= crtc
->base
.dev
;
7172 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7173 const struct drm_display_mode
*adjusted_mode
= &pipe_config
->base
.adjusted_mode
;
7174 int clock_limit
= dev_priv
->max_dotclk_freq
;
7176 if (INTEL_GEN(dev_priv
) < 4) {
7177 clock_limit
= dev_priv
->max_cdclk_freq
* 9 / 10;
7180 * Enable double wide mode when the dot clock
7181 * is > 90% of the (display) core speed.
7183 if (intel_crtc_supports_double_wide(crtc
) &&
7184 adjusted_mode
->crtc_clock
> clock_limit
) {
7185 clock_limit
= dev_priv
->max_dotclk_freq
;
7186 pipe_config
->double_wide
= true;
7190 if (adjusted_mode
->crtc_clock
> clock_limit
) {
7191 DRM_DEBUG_KMS("requested pixel clock (%d kHz) too high (max: %d kHz, double wide: %s)\n",
7192 adjusted_mode
->crtc_clock
, clock_limit
,
7193 yesno(pipe_config
->double_wide
));
7198 * Pipe horizontal size must be even in:
7200 * - LVDS dual channel mode
7201 * - Double wide pipe
7203 if ((intel_crtc_has_type(pipe_config
, INTEL_OUTPUT_LVDS
) &&
7204 intel_is_dual_link_lvds(dev
)) || pipe_config
->double_wide
)
7205 pipe_config
->pipe_src_w
&= ~1;
7207 /* Cantiga+ cannot handle modes with a hsync front porch of 0.
7208 * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw.
7210 if ((INTEL_GEN(dev_priv
) > 4 || IS_G4X(dev_priv
)) &&
7211 adjusted_mode
->crtc_hsync_start
== adjusted_mode
->crtc_hdisplay
)
7214 if (HAS_IPS(dev_priv
))
7215 hsw_compute_ips_config(crtc
, pipe_config
);
7217 if (pipe_config
->has_pch_encoder
)
7218 return ironlake_fdi_compute_config(crtc
, pipe_config
);
7223 static int skylake_get_display_clock_speed(struct drm_i915_private
*dev_priv
)
7227 skl_dpll0_update(dev_priv
);
7229 if (dev_priv
->cdclk_pll
.vco
== 0)
7230 return dev_priv
->cdclk_pll
.ref
;
7232 cdctl
= I915_READ(CDCLK_CTL
);
7234 if (dev_priv
->cdclk_pll
.vco
== 8640000) {
7235 switch (cdctl
& CDCLK_FREQ_SEL_MASK
) {
7236 case CDCLK_FREQ_450_432
:
7238 case CDCLK_FREQ_337_308
:
7240 case CDCLK_FREQ_540
:
7242 case CDCLK_FREQ_675_617
:
7245 MISSING_CASE(cdctl
& CDCLK_FREQ_SEL_MASK
);
7248 switch (cdctl
& CDCLK_FREQ_SEL_MASK
) {
7249 case CDCLK_FREQ_450_432
:
7251 case CDCLK_FREQ_337_308
:
7253 case CDCLK_FREQ_540
:
7255 case CDCLK_FREQ_675_617
:
7258 MISSING_CASE(cdctl
& CDCLK_FREQ_SEL_MASK
);
7262 return dev_priv
->cdclk_pll
.ref
;
7265 static void bxt_de_pll_update(struct drm_i915_private
*dev_priv
)
7269 dev_priv
->cdclk_pll
.ref
= 19200;
7270 dev_priv
->cdclk_pll
.vco
= 0;
7272 val
= I915_READ(BXT_DE_PLL_ENABLE
);
7273 if ((val
& BXT_DE_PLL_PLL_ENABLE
) == 0)
7276 if (WARN_ON((val
& BXT_DE_PLL_LOCK
) == 0))
7279 val
= I915_READ(BXT_DE_PLL_CTL
);
7280 dev_priv
->cdclk_pll
.vco
= (val
& BXT_DE_PLL_RATIO_MASK
) *
7281 dev_priv
->cdclk_pll
.ref
;
7284 static int broxton_get_display_clock_speed(struct drm_i915_private
*dev_priv
)
7289 bxt_de_pll_update(dev_priv
);
7291 vco
= dev_priv
->cdclk_pll
.vco
;
7293 return dev_priv
->cdclk_pll
.ref
;
7295 divider
= I915_READ(CDCLK_CTL
) & BXT_CDCLK_CD2X_DIV_SEL_MASK
;
7298 case BXT_CDCLK_CD2X_DIV_SEL_1
:
7301 case BXT_CDCLK_CD2X_DIV_SEL_1_5
:
7304 case BXT_CDCLK_CD2X_DIV_SEL_2
:
7307 case BXT_CDCLK_CD2X_DIV_SEL_4
:
7311 MISSING_CASE(divider
);
7312 return dev_priv
->cdclk_pll
.ref
;
7315 return DIV_ROUND_CLOSEST(vco
, div
);
7318 static int broadwell_get_display_clock_speed(struct drm_i915_private
*dev_priv
)
7320 uint32_t lcpll
= I915_READ(LCPLL_CTL
);
7321 uint32_t freq
= lcpll
& LCPLL_CLK_FREQ_MASK
;
7323 if (lcpll
& LCPLL_CD_SOURCE_FCLK
)
7325 else if (I915_READ(FUSE_STRAP
) & HSW_CDCLK_LIMIT
)
7327 else if (freq
== LCPLL_CLK_FREQ_450
)
7329 else if (freq
== LCPLL_CLK_FREQ_54O_BDW
)
7331 else if (freq
== LCPLL_CLK_FREQ_337_5_BDW
)
7337 static int haswell_get_display_clock_speed(struct drm_i915_private
*dev_priv
)
7339 uint32_t lcpll
= I915_READ(LCPLL_CTL
);
7340 uint32_t freq
= lcpll
& LCPLL_CLK_FREQ_MASK
;
7342 if (lcpll
& LCPLL_CD_SOURCE_FCLK
)
7344 else if (I915_READ(FUSE_STRAP
) & HSW_CDCLK_LIMIT
)
7346 else if (freq
== LCPLL_CLK_FREQ_450
)
7348 else if (IS_HSW_ULT(dev_priv
))
7354 static int valleyview_get_display_clock_speed(struct drm_i915_private
*dev_priv
)
7356 return vlv_get_cck_clock_hpll(dev_priv
, "cdclk",
7357 CCK_DISPLAY_CLOCK_CONTROL
);
7360 static int ilk_get_display_clock_speed(struct drm_i915_private
*dev_priv
)
7365 static int i945_get_display_clock_speed(struct drm_i915_private
*dev_priv
)
7370 static int i915_get_display_clock_speed(struct drm_i915_private
*dev_priv
)
7375 static int i9xx_misc_get_display_clock_speed(struct drm_i915_private
*dev_priv
)
7380 static int pnv_get_display_clock_speed(struct drm_i915_private
*dev_priv
)
7382 struct pci_dev
*pdev
= dev_priv
->drm
.pdev
;
7385 pci_read_config_word(pdev
, GCFGC
, &gcfgc
);
7387 switch (gcfgc
& GC_DISPLAY_CLOCK_MASK
) {
7388 case GC_DISPLAY_CLOCK_267_MHZ_PNV
:
7390 case GC_DISPLAY_CLOCK_333_MHZ_PNV
:
7392 case GC_DISPLAY_CLOCK_444_MHZ_PNV
:
7394 case GC_DISPLAY_CLOCK_200_MHZ_PNV
:
7397 DRM_ERROR("Unknown pnv display core clock 0x%04x\n", gcfgc
);
7398 case GC_DISPLAY_CLOCK_133_MHZ_PNV
:
7400 case GC_DISPLAY_CLOCK_167_MHZ_PNV
:
7405 static int i915gm_get_display_clock_speed(struct drm_i915_private
*dev_priv
)
7407 struct pci_dev
*pdev
= dev_priv
->drm
.pdev
;
7410 pci_read_config_word(pdev
, GCFGC
, &gcfgc
);
7412 if (gcfgc
& GC_LOW_FREQUENCY_ENABLE
)
7415 switch (gcfgc
& GC_DISPLAY_CLOCK_MASK
) {
7416 case GC_DISPLAY_CLOCK_333_MHZ
:
7419 case GC_DISPLAY_CLOCK_190_200_MHZ
:
7425 static int i865_get_display_clock_speed(struct drm_i915_private
*dev_priv
)
7430 static int i85x_get_display_clock_speed(struct drm_i915_private
*dev_priv
)
7432 struct pci_dev
*pdev
= dev_priv
->drm
.pdev
;
7436 * 852GM/852GMV only supports 133 MHz and the HPLLCC
7437 * encoding is different :(
7438 * FIXME is this the right way to detect 852GM/852GMV?
7440 if (pdev
->revision
== 0x1)
7443 pci_bus_read_config_word(pdev
->bus
,
7444 PCI_DEVFN(0, 3), HPLLCC
, &hpllcc
);
7446 /* Assume that the hardware is in the high speed state. This
7447 * should be the default.
7449 switch (hpllcc
& GC_CLOCK_CONTROL_MASK
) {
7450 case GC_CLOCK_133_200
:
7451 case GC_CLOCK_133_200_2
:
7452 case GC_CLOCK_100_200
:
7454 case GC_CLOCK_166_250
:
7456 case GC_CLOCK_100_133
:
7458 case GC_CLOCK_133_266
:
7459 case GC_CLOCK_133_266_2
:
7460 case GC_CLOCK_166_266
:
7464 /* Shouldn't happen */
7468 static int i830_get_display_clock_speed(struct drm_i915_private
*dev_priv
)
7473 static unsigned int intel_hpll_vco(struct drm_i915_private
*dev_priv
)
7475 static const unsigned int blb_vco
[8] = {
7482 static const unsigned int pnv_vco
[8] = {
7489 static const unsigned int cl_vco
[8] = {
7498 static const unsigned int elk_vco
[8] = {
7504 static const unsigned int ctg_vco
[8] = {
7512 const unsigned int *vco_table
;
7516 /* FIXME other chipsets? */
7517 if (IS_GM45(dev_priv
))
7518 vco_table
= ctg_vco
;
7519 else if (IS_G4X(dev_priv
))
7520 vco_table
= elk_vco
;
7521 else if (IS_CRESTLINE(dev_priv
))
7523 else if (IS_PINEVIEW(dev_priv
))
7524 vco_table
= pnv_vco
;
7525 else if (IS_G33(dev_priv
))
7526 vco_table
= blb_vco
;
7530 tmp
= I915_READ(IS_MOBILE(dev_priv
) ? HPLLVCO_MOBILE
: HPLLVCO
);
7532 vco
= vco_table
[tmp
& 0x7];
7534 DRM_ERROR("Bad HPLL VCO (HPLLVCO=0x%02x)\n", tmp
);
7536 DRM_DEBUG_KMS("HPLL VCO %u kHz\n", vco
);
7541 static int gm45_get_display_clock_speed(struct drm_i915_private
*dev_priv
)
7543 struct pci_dev
*pdev
= dev_priv
->drm
.pdev
;
7544 unsigned int cdclk_sel
, vco
= intel_hpll_vco(dev_priv
);
7547 pci_read_config_word(pdev
, GCFGC
, &tmp
);
7549 cdclk_sel
= (tmp
>> 12) & 0x1;
7555 return cdclk_sel
? 333333 : 222222;
7557 return cdclk_sel
? 320000 : 228571;
7559 DRM_ERROR("Unable to determine CDCLK. HPLL VCO=%u, CFGC=0x%04x\n", vco
, tmp
);
7564 static int i965gm_get_display_clock_speed(struct drm_i915_private
*dev_priv
)
7566 struct pci_dev
*pdev
= dev_priv
->drm
.pdev
;
7567 static const uint8_t div_3200
[] = { 16, 10, 8 };
7568 static const uint8_t div_4000
[] = { 20, 12, 10 };
7569 static const uint8_t div_5333
[] = { 24, 16, 14 };
7570 const uint8_t *div_table
;
7571 unsigned int cdclk_sel
, vco
= intel_hpll_vco(dev_priv
);
7574 pci_read_config_word(pdev
, GCFGC
, &tmp
);
7576 cdclk_sel
= ((tmp
>> 8) & 0x1f) - 1;
7578 if (cdclk_sel
>= ARRAY_SIZE(div_3200
))
7583 div_table
= div_3200
;
7586 div_table
= div_4000
;
7589 div_table
= div_5333
;
7595 return DIV_ROUND_CLOSEST(vco
, div_table
[cdclk_sel
]);
7598 DRM_ERROR("Unable to determine CDCLK. HPLL VCO=%u kHz, CFGC=0x%04x\n", vco
, tmp
);
7602 static int g33_get_display_clock_speed(struct drm_i915_private
*dev_priv
)
7604 struct pci_dev
*pdev
= dev_priv
->drm
.pdev
;
7605 static const uint8_t div_3200
[] = { 12, 10, 8, 7, 5, 16 };
7606 static const uint8_t div_4000
[] = { 14, 12, 10, 8, 6, 20 };
7607 static const uint8_t div_4800
[] = { 20, 14, 12, 10, 8, 24 };
7608 static const uint8_t div_5333
[] = { 20, 16, 12, 12, 8, 28 };
7609 const uint8_t *div_table
;
7610 unsigned int cdclk_sel
, vco
= intel_hpll_vco(dev_priv
);
7613 pci_read_config_word(pdev
, GCFGC
, &tmp
);
7615 cdclk_sel
= (tmp
>> 4) & 0x7;
7617 if (cdclk_sel
>= ARRAY_SIZE(div_3200
))
7622 div_table
= div_3200
;
7625 div_table
= div_4000
;
7628 div_table
= div_4800
;
7631 div_table
= div_5333
;
7637 return DIV_ROUND_CLOSEST(vco
, div_table
[cdclk_sel
]);
7640 DRM_ERROR("Unable to determine CDCLK. HPLL VCO=%u kHz, CFGC=0x%08x\n", vco
, tmp
);
7645 intel_reduce_m_n_ratio(uint32_t *num
, uint32_t *den
)
7647 while (*num
> DATA_LINK_M_N_MASK
||
7648 *den
> DATA_LINK_M_N_MASK
) {
7654 static void compute_m_n(unsigned int m
, unsigned int n
,
7655 uint32_t *ret_m
, uint32_t *ret_n
)
7657 *ret_n
= min_t(unsigned int, roundup_pow_of_two(n
), DATA_LINK_N_MAX
);
7658 *ret_m
= div_u64((uint64_t) m
* *ret_n
, n
);
7659 intel_reduce_m_n_ratio(ret_m
, ret_n
);
7663 intel_link_compute_m_n(int bits_per_pixel
, int nlanes
,
7664 int pixel_clock
, int link_clock
,
7665 struct intel_link_m_n
*m_n
)
7669 compute_m_n(bits_per_pixel
* pixel_clock
,
7670 link_clock
* nlanes
* 8,
7671 &m_n
->gmch_m
, &m_n
->gmch_n
);
7673 compute_m_n(pixel_clock
, link_clock
,
7674 &m_n
->link_m
, &m_n
->link_n
);
7677 static inline bool intel_panel_use_ssc(struct drm_i915_private
*dev_priv
)
7679 if (i915
.panel_use_ssc
>= 0)
7680 return i915
.panel_use_ssc
!= 0;
7681 return dev_priv
->vbt
.lvds_use_ssc
7682 && !(dev_priv
->quirks
& QUIRK_LVDS_SSC_DISABLE
);
7685 static uint32_t pnv_dpll_compute_fp(struct dpll
*dpll
)
7687 return (1 << dpll
->n
) << 16 | dpll
->m2
;
7690 static uint32_t i9xx_dpll_compute_fp(struct dpll
*dpll
)
7692 return dpll
->n
<< 16 | dpll
->m1
<< 8 | dpll
->m2
;
7695 static void i9xx_update_pll_dividers(struct intel_crtc
*crtc
,
7696 struct intel_crtc_state
*crtc_state
,
7697 struct dpll
*reduced_clock
)
7699 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
7702 if (IS_PINEVIEW(dev_priv
)) {
7703 fp
= pnv_dpll_compute_fp(&crtc_state
->dpll
);
7705 fp2
= pnv_dpll_compute_fp(reduced_clock
);
7707 fp
= i9xx_dpll_compute_fp(&crtc_state
->dpll
);
7709 fp2
= i9xx_dpll_compute_fp(reduced_clock
);
7712 crtc_state
->dpll_hw_state
.fp0
= fp
;
7714 crtc
->lowfreq_avail
= false;
7715 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
7717 crtc_state
->dpll_hw_state
.fp1
= fp2
;
7718 crtc
->lowfreq_avail
= true;
7720 crtc_state
->dpll_hw_state
.fp1
= fp
;
7724 static void vlv_pllb_recal_opamp(struct drm_i915_private
*dev_priv
, enum pipe
7730 * PLLB opamp always calibrates to max value of 0x3f, force enable it
7731 * and set it to a reasonable value instead.
7733 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW9(1));
7734 reg_val
&= 0xffffff00;
7735 reg_val
|= 0x00000030;
7736 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9(1), reg_val
);
7738 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_REF_DW13
);
7739 reg_val
&= 0x8cffffff;
7740 reg_val
= 0x8c000000;
7741 vlv_dpio_write(dev_priv
, pipe
, VLV_REF_DW13
, reg_val
);
7743 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW9(1));
7744 reg_val
&= 0xffffff00;
7745 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9(1), reg_val
);
7747 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_REF_DW13
);
7748 reg_val
&= 0x00ffffff;
7749 reg_val
|= 0xb0000000;
7750 vlv_dpio_write(dev_priv
, pipe
, VLV_REF_DW13
, reg_val
);
7753 static void intel_pch_transcoder_set_m_n(struct intel_crtc
*crtc
,
7754 struct intel_link_m_n
*m_n
)
7756 struct drm_device
*dev
= crtc
->base
.dev
;
7757 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7758 int pipe
= crtc
->pipe
;
7760 I915_WRITE(PCH_TRANS_DATA_M1(pipe
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
7761 I915_WRITE(PCH_TRANS_DATA_N1(pipe
), m_n
->gmch_n
);
7762 I915_WRITE(PCH_TRANS_LINK_M1(pipe
), m_n
->link_m
);
7763 I915_WRITE(PCH_TRANS_LINK_N1(pipe
), m_n
->link_n
);
7766 static void intel_cpu_transcoder_set_m_n(struct intel_crtc
*crtc
,
7767 struct intel_link_m_n
*m_n
,
7768 struct intel_link_m_n
*m2_n2
)
7770 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
7771 int pipe
= crtc
->pipe
;
7772 enum transcoder transcoder
= crtc
->config
->cpu_transcoder
;
7774 if (INTEL_GEN(dev_priv
) >= 5) {
7775 I915_WRITE(PIPE_DATA_M1(transcoder
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
7776 I915_WRITE(PIPE_DATA_N1(transcoder
), m_n
->gmch_n
);
7777 I915_WRITE(PIPE_LINK_M1(transcoder
), m_n
->link_m
);
7778 I915_WRITE(PIPE_LINK_N1(transcoder
), m_n
->link_n
);
7779 /* M2_N2 registers to be set only for gen < 8 (M2_N2 available
7780 * for gen < 8) and if DRRS is supported (to make sure the
7781 * registers are not unnecessarily accessed).
7783 if (m2_n2
&& (IS_CHERRYVIEW(dev_priv
) ||
7784 INTEL_GEN(dev_priv
) < 8) && crtc
->config
->has_drrs
) {
7785 I915_WRITE(PIPE_DATA_M2(transcoder
),
7786 TU_SIZE(m2_n2
->tu
) | m2_n2
->gmch_m
);
7787 I915_WRITE(PIPE_DATA_N2(transcoder
), m2_n2
->gmch_n
);
7788 I915_WRITE(PIPE_LINK_M2(transcoder
), m2_n2
->link_m
);
7789 I915_WRITE(PIPE_LINK_N2(transcoder
), m2_n2
->link_n
);
7792 I915_WRITE(PIPE_DATA_M_G4X(pipe
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
7793 I915_WRITE(PIPE_DATA_N_G4X(pipe
), m_n
->gmch_n
);
7794 I915_WRITE(PIPE_LINK_M_G4X(pipe
), m_n
->link_m
);
7795 I915_WRITE(PIPE_LINK_N_G4X(pipe
), m_n
->link_n
);
7799 void intel_dp_set_m_n(struct intel_crtc
*crtc
, enum link_m_n_set m_n
)
7801 struct intel_link_m_n
*dp_m_n
, *dp_m2_n2
= NULL
;
7804 dp_m_n
= &crtc
->config
->dp_m_n
;
7805 dp_m2_n2
= &crtc
->config
->dp_m2_n2
;
7806 } else if (m_n
== M2_N2
) {
7809 * M2_N2 registers are not supported. Hence m2_n2 divider value
7810 * needs to be programmed into M1_N1.
7812 dp_m_n
= &crtc
->config
->dp_m2_n2
;
7814 DRM_ERROR("Unsupported divider value\n");
7818 if (crtc
->config
->has_pch_encoder
)
7819 intel_pch_transcoder_set_m_n(crtc
, &crtc
->config
->dp_m_n
);
7821 intel_cpu_transcoder_set_m_n(crtc
, dp_m_n
, dp_m2_n2
);
7824 static void vlv_compute_dpll(struct intel_crtc
*crtc
,
7825 struct intel_crtc_state
*pipe_config
)
7827 pipe_config
->dpll_hw_state
.dpll
= DPLL_INTEGRATED_REF_CLK_VLV
|
7828 DPLL_REF_CLK_ENABLE_VLV
| DPLL_VGA_MODE_DIS
;
7829 if (crtc
->pipe
!= PIPE_A
)
7830 pipe_config
->dpll_hw_state
.dpll
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
7832 /* DPLL not used with DSI, but still need the rest set up */
7833 if (!intel_crtc_has_type(pipe_config
, INTEL_OUTPUT_DSI
))
7834 pipe_config
->dpll_hw_state
.dpll
|= DPLL_VCO_ENABLE
|
7835 DPLL_EXT_BUFFER_ENABLE_VLV
;
7837 pipe_config
->dpll_hw_state
.dpll_md
=
7838 (pipe_config
->pixel_multiplier
- 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
7841 static void chv_compute_dpll(struct intel_crtc
*crtc
,
7842 struct intel_crtc_state
*pipe_config
)
7844 pipe_config
->dpll_hw_state
.dpll
= DPLL_SSC_REF_CLK_CHV
|
7845 DPLL_REF_CLK_ENABLE_VLV
| DPLL_VGA_MODE_DIS
;
7846 if (crtc
->pipe
!= PIPE_A
)
7847 pipe_config
->dpll_hw_state
.dpll
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
7849 /* DPLL not used with DSI, but still need the rest set up */
7850 if (!intel_crtc_has_type(pipe_config
, INTEL_OUTPUT_DSI
))
7851 pipe_config
->dpll_hw_state
.dpll
|= DPLL_VCO_ENABLE
;
7853 pipe_config
->dpll_hw_state
.dpll_md
=
7854 (pipe_config
->pixel_multiplier
- 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
7857 static void vlv_prepare_pll(struct intel_crtc
*crtc
,
7858 const struct intel_crtc_state
*pipe_config
)
7860 struct drm_device
*dev
= crtc
->base
.dev
;
7861 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7862 enum pipe pipe
= crtc
->pipe
;
7864 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
;
7865 u32 coreclk
, reg_val
;
7868 I915_WRITE(DPLL(pipe
),
7869 pipe_config
->dpll_hw_state
.dpll
&
7870 ~(DPLL_VCO_ENABLE
| DPLL_EXT_BUFFER_ENABLE_VLV
));
7872 /* No need to actually set up the DPLL with DSI */
7873 if ((pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
) == 0)
7876 mutex_lock(&dev_priv
->sb_lock
);
7878 bestn
= pipe_config
->dpll
.n
;
7879 bestm1
= pipe_config
->dpll
.m1
;
7880 bestm2
= pipe_config
->dpll
.m2
;
7881 bestp1
= pipe_config
->dpll
.p1
;
7882 bestp2
= pipe_config
->dpll
.p2
;
7884 /* See eDP HDMI DPIO driver vbios notes doc */
7886 /* PLL B needs special handling */
7888 vlv_pllb_recal_opamp(dev_priv
, pipe
);
7890 /* Set up Tx target for periodic Rcomp update */
7891 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9_BCAST
, 0x0100000f);
7893 /* Disable target IRef on PLL */
7894 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW8(pipe
));
7895 reg_val
&= 0x00ffffff;
7896 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW8(pipe
), reg_val
);
7898 /* Disable fast lock */
7899 vlv_dpio_write(dev_priv
, pipe
, VLV_CMN_DW0
, 0x610);
7901 /* Set idtafcrecal before PLL is enabled */
7902 mdiv
= ((bestm1
<< DPIO_M1DIV_SHIFT
) | (bestm2
& DPIO_M2DIV_MASK
));
7903 mdiv
|= ((bestp1
<< DPIO_P1_SHIFT
) | (bestp2
<< DPIO_P2_SHIFT
));
7904 mdiv
|= ((bestn
<< DPIO_N_SHIFT
));
7905 mdiv
|= (1 << DPIO_K_SHIFT
);
7908 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
7909 * but we don't support that).
7910 * Note: don't use the DAC post divider as it seems unstable.
7912 mdiv
|= (DPIO_POST_DIV_HDMIDP
<< DPIO_POST_DIV_SHIFT
);
7913 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW3(pipe
), mdiv
);
7915 mdiv
|= DPIO_ENABLE_CALIBRATION
;
7916 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW3(pipe
), mdiv
);
7918 /* Set HBR and RBR LPF coefficients */
7919 if (pipe_config
->port_clock
== 162000 ||
7920 intel_crtc_has_type(crtc
->config
, INTEL_OUTPUT_ANALOG
) ||
7921 intel_crtc_has_type(crtc
->config
, INTEL_OUTPUT_HDMI
))
7922 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW10(pipe
),
7925 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW10(pipe
),
7928 if (intel_crtc_has_dp_encoder(pipe_config
)) {
7929 /* Use SSC source */
7931 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
7934 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
7936 } else { /* HDMI or VGA */
7937 /* Use bend source */
7939 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
7942 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
7946 coreclk
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW7(pipe
));
7947 coreclk
= (coreclk
& 0x0000ff00) | 0x01c00000;
7948 if (intel_crtc_has_dp_encoder(crtc
->config
))
7949 coreclk
|= 0x01000000;
7950 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW7(pipe
), coreclk
);
7952 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW11(pipe
), 0x87871000);
7953 mutex_unlock(&dev_priv
->sb_lock
);
7956 static void chv_prepare_pll(struct intel_crtc
*crtc
,
7957 const struct intel_crtc_state
*pipe_config
)
7959 struct drm_device
*dev
= crtc
->base
.dev
;
7960 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7961 enum pipe pipe
= crtc
->pipe
;
7962 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
7963 u32 loopfilter
, tribuf_calcntr
;
7964 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
, bestm2_frac
;
7968 /* Enable Refclk and SSC */
7969 I915_WRITE(DPLL(pipe
),
7970 pipe_config
->dpll_hw_state
.dpll
& ~DPLL_VCO_ENABLE
);
7972 /* No need to actually set up the DPLL with DSI */
7973 if ((pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
) == 0)
7976 bestn
= pipe_config
->dpll
.n
;
7977 bestm2_frac
= pipe_config
->dpll
.m2
& 0x3fffff;
7978 bestm1
= pipe_config
->dpll
.m1
;
7979 bestm2
= pipe_config
->dpll
.m2
>> 22;
7980 bestp1
= pipe_config
->dpll
.p1
;
7981 bestp2
= pipe_config
->dpll
.p2
;
7982 vco
= pipe_config
->dpll
.vco
;
7986 mutex_lock(&dev_priv
->sb_lock
);
7988 /* p1 and p2 divider */
7989 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW13(port
),
7990 5 << DPIO_CHV_S1_DIV_SHIFT
|
7991 bestp1
<< DPIO_CHV_P1_DIV_SHIFT
|
7992 bestp2
<< DPIO_CHV_P2_DIV_SHIFT
|
7993 1 << DPIO_CHV_K_DIV_SHIFT
);
7995 /* Feedback post-divider - m2 */
7996 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW0(port
), bestm2
);
7998 /* Feedback refclk divider - n and m1 */
7999 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW1(port
),
8000 DPIO_CHV_M1_DIV_BY_2
|
8001 1 << DPIO_CHV_N_DIV_SHIFT
);
8003 /* M2 fraction division */
8004 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW2(port
), bestm2_frac
);
8006 /* M2 fraction division enable */
8007 dpio_val
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW3(port
));
8008 dpio_val
&= ~(DPIO_CHV_FEEDFWD_GAIN_MASK
| DPIO_CHV_FRAC_DIV_EN
);
8009 dpio_val
|= (2 << DPIO_CHV_FEEDFWD_GAIN_SHIFT
);
8011 dpio_val
|= DPIO_CHV_FRAC_DIV_EN
;
8012 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW3(port
), dpio_val
);
8014 /* Program digital lock detect threshold */
8015 dpio_val
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW9(port
));
8016 dpio_val
&= ~(DPIO_CHV_INT_LOCK_THRESHOLD_MASK
|
8017 DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE
);
8018 dpio_val
|= (0x5 << DPIO_CHV_INT_LOCK_THRESHOLD_SHIFT
);
8020 dpio_val
|= DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE
;
8021 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW9(port
), dpio_val
);
8024 if (vco
== 5400000) {
8025 loopfilter
|= (0x3 << DPIO_CHV_PROP_COEFF_SHIFT
);
8026 loopfilter
|= (0x8 << DPIO_CHV_INT_COEFF_SHIFT
);
8027 loopfilter
|= (0x1 << DPIO_CHV_GAIN_CTRL_SHIFT
);
8028 tribuf_calcntr
= 0x9;
8029 } else if (vco
<= 6200000) {
8030 loopfilter
|= (0x5 << DPIO_CHV_PROP_COEFF_SHIFT
);
8031 loopfilter
|= (0xB << DPIO_CHV_INT_COEFF_SHIFT
);
8032 loopfilter
|= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT
);
8033 tribuf_calcntr
= 0x9;
8034 } else if (vco
<= 6480000) {
8035 loopfilter
|= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT
);
8036 loopfilter
|= (0x9 << DPIO_CHV_INT_COEFF_SHIFT
);
8037 loopfilter
|= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT
);
8038 tribuf_calcntr
= 0x8;
8040 /* Not supported. Apply the same limits as in the max case */
8041 loopfilter
|= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT
);
8042 loopfilter
|= (0x9 << DPIO_CHV_INT_COEFF_SHIFT
);
8043 loopfilter
|= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT
);
8046 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW6(port
), loopfilter
);
8048 dpio_val
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW8(port
));
8049 dpio_val
&= ~DPIO_CHV_TDC_TARGET_CNT_MASK
;
8050 dpio_val
|= (tribuf_calcntr
<< DPIO_CHV_TDC_TARGET_CNT_SHIFT
);
8051 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW8(port
), dpio_val
);
8054 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
),
8055 vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
)) |
8058 mutex_unlock(&dev_priv
->sb_lock
);
8062 * vlv_force_pll_on - forcibly enable just the PLL
8063 * @dev_priv: i915 private structure
8064 * @pipe: pipe PLL to enable
8065 * @dpll: PLL configuration
8067 * Enable the PLL for @pipe using the supplied @dpll config. To be used
8068 * in cases where we need the PLL enabled even when @pipe is not going to
8071 int vlv_force_pll_on(struct drm_i915_private
*dev_priv
, enum pipe pipe
,
8072 const struct dpll
*dpll
)
8074 struct intel_crtc
*crtc
= intel_get_crtc_for_pipe(dev_priv
, pipe
);
8075 struct intel_crtc_state
*pipe_config
;
8077 pipe_config
= kzalloc(sizeof(*pipe_config
), GFP_KERNEL
);
8081 pipe_config
->base
.crtc
= &crtc
->base
;
8082 pipe_config
->pixel_multiplier
= 1;
8083 pipe_config
->dpll
= *dpll
;
8085 if (IS_CHERRYVIEW(dev_priv
)) {
8086 chv_compute_dpll(crtc
, pipe_config
);
8087 chv_prepare_pll(crtc
, pipe_config
);
8088 chv_enable_pll(crtc
, pipe_config
);
8090 vlv_compute_dpll(crtc
, pipe_config
);
8091 vlv_prepare_pll(crtc
, pipe_config
);
8092 vlv_enable_pll(crtc
, pipe_config
);
8101 * vlv_force_pll_off - forcibly disable just the PLL
8102 * @dev_priv: i915 private structure
8103 * @pipe: pipe PLL to disable
8105 * Disable the PLL for @pipe. To be used in cases where we need
8106 * the PLL enabled even when @pipe is not going to be enabled.
8108 void vlv_force_pll_off(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
8110 if (IS_CHERRYVIEW(dev_priv
))
8111 chv_disable_pll(dev_priv
, pipe
);
8113 vlv_disable_pll(dev_priv
, pipe
);
8116 static void i9xx_compute_dpll(struct intel_crtc
*crtc
,
8117 struct intel_crtc_state
*crtc_state
,
8118 struct dpll
*reduced_clock
)
8120 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
8122 struct dpll
*clock
= &crtc_state
->dpll
;
8124 i9xx_update_pll_dividers(crtc
, crtc_state
, reduced_clock
);
8126 dpll
= DPLL_VGA_MODE_DIS
;
8128 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
))
8129 dpll
|= DPLLB_MODE_LVDS
;
8131 dpll
|= DPLLB_MODE_DAC_SERIAL
;
8133 if (IS_I945G(dev_priv
) || IS_I945GM(dev_priv
) || IS_G33(dev_priv
)) {
8134 dpll
|= (crtc_state
->pixel_multiplier
- 1)
8135 << SDVO_MULTIPLIER_SHIFT_HIRES
;
8138 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_SDVO
) ||
8139 intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_HDMI
))
8140 dpll
|= DPLL_SDVO_HIGH_SPEED
;
8142 if (intel_crtc_has_dp_encoder(crtc_state
))
8143 dpll
|= DPLL_SDVO_HIGH_SPEED
;
8145 /* compute bitmask from p1 value */
8146 if (IS_PINEVIEW(dev_priv
))
8147 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
;
8149 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
8150 if (IS_G4X(dev_priv
) && reduced_clock
)
8151 dpll
|= (1 << (reduced_clock
->p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
8153 switch (clock
->p2
) {
8155 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
8158 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
8161 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
8164 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
8167 if (INTEL_GEN(dev_priv
) >= 4)
8168 dpll
|= (6 << PLL_LOAD_PULSE_PHASE_SHIFT
);
8170 if (crtc_state
->sdvo_tv_clock
)
8171 dpll
|= PLL_REF_INPUT_TVCLKINBC
;
8172 else if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
8173 intel_panel_use_ssc(dev_priv
))
8174 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
8176 dpll
|= PLL_REF_INPUT_DREFCLK
;
8178 dpll
|= DPLL_VCO_ENABLE
;
8179 crtc_state
->dpll_hw_state
.dpll
= dpll
;
8181 if (INTEL_GEN(dev_priv
) >= 4) {
8182 u32 dpll_md
= (crtc_state
->pixel_multiplier
- 1)
8183 << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
8184 crtc_state
->dpll_hw_state
.dpll_md
= dpll_md
;
8188 static void i8xx_compute_dpll(struct intel_crtc
*crtc
,
8189 struct intel_crtc_state
*crtc_state
,
8190 struct dpll
*reduced_clock
)
8192 struct drm_device
*dev
= crtc
->base
.dev
;
8193 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8195 struct dpll
*clock
= &crtc_state
->dpll
;
8197 i9xx_update_pll_dividers(crtc
, crtc_state
, reduced_clock
);
8199 dpll
= DPLL_VGA_MODE_DIS
;
8201 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
8202 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
8205 dpll
|= PLL_P1_DIVIDE_BY_TWO
;
8207 dpll
|= (clock
->p1
- 2) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
8209 dpll
|= PLL_P2_DIVIDE_BY_4
;
8212 if (!IS_I830(dev_priv
) &&
8213 intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_DVO
))
8214 dpll
|= DPLL_DVO_2X_MODE
;
8216 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
8217 intel_panel_use_ssc(dev_priv
))
8218 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
8220 dpll
|= PLL_REF_INPUT_DREFCLK
;
8222 dpll
|= DPLL_VCO_ENABLE
;
8223 crtc_state
->dpll_hw_state
.dpll
= dpll
;
8226 static void intel_set_pipe_timings(struct intel_crtc
*intel_crtc
)
8228 struct drm_i915_private
*dev_priv
= to_i915(intel_crtc
->base
.dev
);
8229 enum pipe pipe
= intel_crtc
->pipe
;
8230 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
8231 const struct drm_display_mode
*adjusted_mode
= &intel_crtc
->config
->base
.adjusted_mode
;
8232 uint32_t crtc_vtotal
, crtc_vblank_end
;
8235 /* We need to be careful not to changed the adjusted mode, for otherwise
8236 * the hw state checker will get angry at the mismatch. */
8237 crtc_vtotal
= adjusted_mode
->crtc_vtotal
;
8238 crtc_vblank_end
= adjusted_mode
->crtc_vblank_end
;
8240 if (adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
) {
8241 /* the chip adds 2 halflines automatically */
8243 crtc_vblank_end
-= 1;
8245 if (intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_SDVO
))
8246 vsyncshift
= (adjusted_mode
->crtc_htotal
- 1) / 2;
8248 vsyncshift
= adjusted_mode
->crtc_hsync_start
-
8249 adjusted_mode
->crtc_htotal
/ 2;
8251 vsyncshift
+= adjusted_mode
->crtc_htotal
;
8254 if (INTEL_GEN(dev_priv
) > 3)
8255 I915_WRITE(VSYNCSHIFT(cpu_transcoder
), vsyncshift
);
8257 I915_WRITE(HTOTAL(cpu_transcoder
),
8258 (adjusted_mode
->crtc_hdisplay
- 1) |
8259 ((adjusted_mode
->crtc_htotal
- 1) << 16));
8260 I915_WRITE(HBLANK(cpu_transcoder
),
8261 (adjusted_mode
->crtc_hblank_start
- 1) |
8262 ((adjusted_mode
->crtc_hblank_end
- 1) << 16));
8263 I915_WRITE(HSYNC(cpu_transcoder
),
8264 (adjusted_mode
->crtc_hsync_start
- 1) |
8265 ((adjusted_mode
->crtc_hsync_end
- 1) << 16));
8267 I915_WRITE(VTOTAL(cpu_transcoder
),
8268 (adjusted_mode
->crtc_vdisplay
- 1) |
8269 ((crtc_vtotal
- 1) << 16));
8270 I915_WRITE(VBLANK(cpu_transcoder
),
8271 (adjusted_mode
->crtc_vblank_start
- 1) |
8272 ((crtc_vblank_end
- 1) << 16));
8273 I915_WRITE(VSYNC(cpu_transcoder
),
8274 (adjusted_mode
->crtc_vsync_start
- 1) |
8275 ((adjusted_mode
->crtc_vsync_end
- 1) << 16));
8277 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
8278 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
8279 * documented on the DDI_FUNC_CTL register description, EDP Input Select
8281 if (IS_HASWELL(dev_priv
) && cpu_transcoder
== TRANSCODER_EDP
&&
8282 (pipe
== PIPE_B
|| pipe
== PIPE_C
))
8283 I915_WRITE(VTOTAL(pipe
), I915_READ(VTOTAL(cpu_transcoder
)));
8287 static void intel_set_pipe_src_size(struct intel_crtc
*intel_crtc
)
8289 struct drm_device
*dev
= intel_crtc
->base
.dev
;
8290 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8291 enum pipe pipe
= intel_crtc
->pipe
;
8293 /* pipesrc controls the size that is scaled from, which should
8294 * always be the user's requested size.
8296 I915_WRITE(PIPESRC(pipe
),
8297 ((intel_crtc
->config
->pipe_src_w
- 1) << 16) |
8298 (intel_crtc
->config
->pipe_src_h
- 1));
8301 static void intel_get_pipe_timings(struct intel_crtc
*crtc
,
8302 struct intel_crtc_state
*pipe_config
)
8304 struct drm_device
*dev
= crtc
->base
.dev
;
8305 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8306 enum transcoder cpu_transcoder
= pipe_config
->cpu_transcoder
;
8309 tmp
= I915_READ(HTOTAL(cpu_transcoder
));
8310 pipe_config
->base
.adjusted_mode
.crtc_hdisplay
= (tmp
& 0xffff) + 1;
8311 pipe_config
->base
.adjusted_mode
.crtc_htotal
= ((tmp
>> 16) & 0xffff) + 1;
8312 tmp
= I915_READ(HBLANK(cpu_transcoder
));
8313 pipe_config
->base
.adjusted_mode
.crtc_hblank_start
= (tmp
& 0xffff) + 1;
8314 pipe_config
->base
.adjusted_mode
.crtc_hblank_end
= ((tmp
>> 16) & 0xffff) + 1;
8315 tmp
= I915_READ(HSYNC(cpu_transcoder
));
8316 pipe_config
->base
.adjusted_mode
.crtc_hsync_start
= (tmp
& 0xffff) + 1;
8317 pipe_config
->base
.adjusted_mode
.crtc_hsync_end
= ((tmp
>> 16) & 0xffff) + 1;
8319 tmp
= I915_READ(VTOTAL(cpu_transcoder
));
8320 pipe_config
->base
.adjusted_mode
.crtc_vdisplay
= (tmp
& 0xffff) + 1;
8321 pipe_config
->base
.adjusted_mode
.crtc_vtotal
= ((tmp
>> 16) & 0xffff) + 1;
8322 tmp
= I915_READ(VBLANK(cpu_transcoder
));
8323 pipe_config
->base
.adjusted_mode
.crtc_vblank_start
= (tmp
& 0xffff) + 1;
8324 pipe_config
->base
.adjusted_mode
.crtc_vblank_end
= ((tmp
>> 16) & 0xffff) + 1;
8325 tmp
= I915_READ(VSYNC(cpu_transcoder
));
8326 pipe_config
->base
.adjusted_mode
.crtc_vsync_start
= (tmp
& 0xffff) + 1;
8327 pipe_config
->base
.adjusted_mode
.crtc_vsync_end
= ((tmp
>> 16) & 0xffff) + 1;
8329 if (I915_READ(PIPECONF(cpu_transcoder
)) & PIPECONF_INTERLACE_MASK
) {
8330 pipe_config
->base
.adjusted_mode
.flags
|= DRM_MODE_FLAG_INTERLACE
;
8331 pipe_config
->base
.adjusted_mode
.crtc_vtotal
+= 1;
8332 pipe_config
->base
.adjusted_mode
.crtc_vblank_end
+= 1;
8336 static void intel_get_pipe_src_size(struct intel_crtc
*crtc
,
8337 struct intel_crtc_state
*pipe_config
)
8339 struct drm_device
*dev
= crtc
->base
.dev
;
8340 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8343 tmp
= I915_READ(PIPESRC(crtc
->pipe
));
8344 pipe_config
->pipe_src_h
= (tmp
& 0xffff) + 1;
8345 pipe_config
->pipe_src_w
= ((tmp
>> 16) & 0xffff) + 1;
8347 pipe_config
->base
.mode
.vdisplay
= pipe_config
->pipe_src_h
;
8348 pipe_config
->base
.mode
.hdisplay
= pipe_config
->pipe_src_w
;
8351 void intel_mode_from_pipe_config(struct drm_display_mode
*mode
,
8352 struct intel_crtc_state
*pipe_config
)
8354 mode
->hdisplay
= pipe_config
->base
.adjusted_mode
.crtc_hdisplay
;
8355 mode
->htotal
= pipe_config
->base
.adjusted_mode
.crtc_htotal
;
8356 mode
->hsync_start
= pipe_config
->base
.adjusted_mode
.crtc_hsync_start
;
8357 mode
->hsync_end
= pipe_config
->base
.adjusted_mode
.crtc_hsync_end
;
8359 mode
->vdisplay
= pipe_config
->base
.adjusted_mode
.crtc_vdisplay
;
8360 mode
->vtotal
= pipe_config
->base
.adjusted_mode
.crtc_vtotal
;
8361 mode
->vsync_start
= pipe_config
->base
.adjusted_mode
.crtc_vsync_start
;
8362 mode
->vsync_end
= pipe_config
->base
.adjusted_mode
.crtc_vsync_end
;
8364 mode
->flags
= pipe_config
->base
.adjusted_mode
.flags
;
8365 mode
->type
= DRM_MODE_TYPE_DRIVER
;
8367 mode
->clock
= pipe_config
->base
.adjusted_mode
.crtc_clock
;
8368 mode
->flags
|= pipe_config
->base
.adjusted_mode
.flags
;
8370 mode
->hsync
= drm_mode_hsync(mode
);
8371 mode
->vrefresh
= drm_mode_vrefresh(mode
);
8372 drm_mode_set_name(mode
);
8375 static void i9xx_set_pipeconf(struct intel_crtc
*intel_crtc
)
8377 struct drm_i915_private
*dev_priv
= to_i915(intel_crtc
->base
.dev
);
8382 if ((intel_crtc
->pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
8383 (intel_crtc
->pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
8384 pipeconf
|= I915_READ(PIPECONF(intel_crtc
->pipe
)) & PIPECONF_ENABLE
;
8386 if (intel_crtc
->config
->double_wide
)
8387 pipeconf
|= PIPECONF_DOUBLE_WIDE
;
8389 /* only g4x and later have fancy bpc/dither controls */
8390 if (IS_G4X(dev_priv
) || IS_VALLEYVIEW(dev_priv
) ||
8391 IS_CHERRYVIEW(dev_priv
)) {
8392 /* Bspec claims that we can't use dithering for 30bpp pipes. */
8393 if (intel_crtc
->config
->dither
&& intel_crtc
->config
->pipe_bpp
!= 30)
8394 pipeconf
|= PIPECONF_DITHER_EN
|
8395 PIPECONF_DITHER_TYPE_SP
;
8397 switch (intel_crtc
->config
->pipe_bpp
) {
8399 pipeconf
|= PIPECONF_6BPC
;
8402 pipeconf
|= PIPECONF_8BPC
;
8405 pipeconf
|= PIPECONF_10BPC
;
8408 /* Case prevented by intel_choose_pipe_bpp_dither. */
8413 if (HAS_PIPE_CXSR(dev_priv
)) {
8414 if (intel_crtc
->lowfreq_avail
) {
8415 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
8416 pipeconf
|= PIPECONF_CXSR_DOWNCLOCK
;
8418 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
8422 if (intel_crtc
->config
->base
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
) {
8423 if (INTEL_GEN(dev_priv
) < 4 ||
8424 intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_SDVO
))
8425 pipeconf
|= PIPECONF_INTERLACE_W_FIELD_INDICATION
;
8427 pipeconf
|= PIPECONF_INTERLACE_W_SYNC_SHIFT
;
8429 pipeconf
|= PIPECONF_PROGRESSIVE
;
8431 if ((IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) &&
8432 intel_crtc
->config
->limited_color_range
)
8433 pipeconf
|= PIPECONF_COLOR_RANGE_SELECT
;
8435 I915_WRITE(PIPECONF(intel_crtc
->pipe
), pipeconf
);
8436 POSTING_READ(PIPECONF(intel_crtc
->pipe
));
8439 static int i8xx_crtc_compute_clock(struct intel_crtc
*crtc
,
8440 struct intel_crtc_state
*crtc_state
)
8442 struct drm_device
*dev
= crtc
->base
.dev
;
8443 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8444 const struct intel_limit
*limit
;
8447 memset(&crtc_state
->dpll_hw_state
, 0,
8448 sizeof(crtc_state
->dpll_hw_state
));
8450 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
8451 if (intel_panel_use_ssc(dev_priv
)) {
8452 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
8453 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk
);
8456 limit
= &intel_limits_i8xx_lvds
;
8457 } else if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_DVO
)) {
8458 limit
= &intel_limits_i8xx_dvo
;
8460 limit
= &intel_limits_i8xx_dac
;
8463 if (!crtc_state
->clock_set
&&
8464 !i9xx_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
8465 refclk
, NULL
, &crtc_state
->dpll
)) {
8466 DRM_ERROR("Couldn't find PLL settings for mode!\n");
8470 i8xx_compute_dpll(crtc
, crtc_state
, NULL
);
8475 static int g4x_crtc_compute_clock(struct intel_crtc
*crtc
,
8476 struct intel_crtc_state
*crtc_state
)
8478 struct drm_device
*dev
= crtc
->base
.dev
;
8479 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8480 const struct intel_limit
*limit
;
8483 memset(&crtc_state
->dpll_hw_state
, 0,
8484 sizeof(crtc_state
->dpll_hw_state
));
8486 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
8487 if (intel_panel_use_ssc(dev_priv
)) {
8488 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
8489 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk
);
8492 if (intel_is_dual_link_lvds(dev
))
8493 limit
= &intel_limits_g4x_dual_channel_lvds
;
8495 limit
= &intel_limits_g4x_single_channel_lvds
;
8496 } else if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_HDMI
) ||
8497 intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_ANALOG
)) {
8498 limit
= &intel_limits_g4x_hdmi
;
8499 } else if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_SDVO
)) {
8500 limit
= &intel_limits_g4x_sdvo
;
8502 /* The option is for other outputs */
8503 limit
= &intel_limits_i9xx_sdvo
;
8506 if (!crtc_state
->clock_set
&&
8507 !g4x_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
8508 refclk
, NULL
, &crtc_state
->dpll
)) {
8509 DRM_ERROR("Couldn't find PLL settings for mode!\n");
8513 i9xx_compute_dpll(crtc
, crtc_state
, NULL
);
8518 static int pnv_crtc_compute_clock(struct intel_crtc
*crtc
,
8519 struct intel_crtc_state
*crtc_state
)
8521 struct drm_device
*dev
= crtc
->base
.dev
;
8522 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8523 const struct intel_limit
*limit
;
8526 memset(&crtc_state
->dpll_hw_state
, 0,
8527 sizeof(crtc_state
->dpll_hw_state
));
8529 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
8530 if (intel_panel_use_ssc(dev_priv
)) {
8531 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
8532 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk
);
8535 limit
= &intel_limits_pineview_lvds
;
8537 limit
= &intel_limits_pineview_sdvo
;
8540 if (!crtc_state
->clock_set
&&
8541 !pnv_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
8542 refclk
, NULL
, &crtc_state
->dpll
)) {
8543 DRM_ERROR("Couldn't find PLL settings for mode!\n");
8547 i9xx_compute_dpll(crtc
, crtc_state
, NULL
);
8552 static int i9xx_crtc_compute_clock(struct intel_crtc
*crtc
,
8553 struct intel_crtc_state
*crtc_state
)
8555 struct drm_device
*dev
= crtc
->base
.dev
;
8556 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8557 const struct intel_limit
*limit
;
8560 memset(&crtc_state
->dpll_hw_state
, 0,
8561 sizeof(crtc_state
->dpll_hw_state
));
8563 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
8564 if (intel_panel_use_ssc(dev_priv
)) {
8565 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
8566 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk
);
8569 limit
= &intel_limits_i9xx_lvds
;
8571 limit
= &intel_limits_i9xx_sdvo
;
8574 if (!crtc_state
->clock_set
&&
8575 !i9xx_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
8576 refclk
, NULL
, &crtc_state
->dpll
)) {
8577 DRM_ERROR("Couldn't find PLL settings for mode!\n");
8581 i9xx_compute_dpll(crtc
, crtc_state
, NULL
);
8586 static int chv_crtc_compute_clock(struct intel_crtc
*crtc
,
8587 struct intel_crtc_state
*crtc_state
)
8589 int refclk
= 100000;
8590 const struct intel_limit
*limit
= &intel_limits_chv
;
8592 memset(&crtc_state
->dpll_hw_state
, 0,
8593 sizeof(crtc_state
->dpll_hw_state
));
8595 if (!crtc_state
->clock_set
&&
8596 !chv_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
8597 refclk
, NULL
, &crtc_state
->dpll
)) {
8598 DRM_ERROR("Couldn't find PLL settings for mode!\n");
8602 chv_compute_dpll(crtc
, crtc_state
);
8607 static int vlv_crtc_compute_clock(struct intel_crtc
*crtc
,
8608 struct intel_crtc_state
*crtc_state
)
8610 int refclk
= 100000;
8611 const struct intel_limit
*limit
= &intel_limits_vlv
;
8613 memset(&crtc_state
->dpll_hw_state
, 0,
8614 sizeof(crtc_state
->dpll_hw_state
));
8616 if (!crtc_state
->clock_set
&&
8617 !vlv_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
8618 refclk
, NULL
, &crtc_state
->dpll
)) {
8619 DRM_ERROR("Couldn't find PLL settings for mode!\n");
8623 vlv_compute_dpll(crtc
, crtc_state
);
8628 static void i9xx_get_pfit_config(struct intel_crtc
*crtc
,
8629 struct intel_crtc_state
*pipe_config
)
8631 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
8634 if (INTEL_GEN(dev_priv
) <= 3 &&
8635 (IS_I830(dev_priv
) || !IS_MOBILE(dev_priv
)))
8638 tmp
= I915_READ(PFIT_CONTROL
);
8639 if (!(tmp
& PFIT_ENABLE
))
8642 /* Check whether the pfit is attached to our pipe. */
8643 if (INTEL_GEN(dev_priv
) < 4) {
8644 if (crtc
->pipe
!= PIPE_B
)
8647 if ((tmp
& PFIT_PIPE_MASK
) != (crtc
->pipe
<< PFIT_PIPE_SHIFT
))
8651 pipe_config
->gmch_pfit
.control
= tmp
;
8652 pipe_config
->gmch_pfit
.pgm_ratios
= I915_READ(PFIT_PGM_RATIOS
);
8655 static void vlv_crtc_clock_get(struct intel_crtc
*crtc
,
8656 struct intel_crtc_state
*pipe_config
)
8658 struct drm_device
*dev
= crtc
->base
.dev
;
8659 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8660 int pipe
= pipe_config
->cpu_transcoder
;
8663 int refclk
= 100000;
8665 /* In case of DSI, DPLL will not be used */
8666 if ((pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
) == 0)
8669 mutex_lock(&dev_priv
->sb_lock
);
8670 mdiv
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW3(pipe
));
8671 mutex_unlock(&dev_priv
->sb_lock
);
8673 clock
.m1
= (mdiv
>> DPIO_M1DIV_SHIFT
) & 7;
8674 clock
.m2
= mdiv
& DPIO_M2DIV_MASK
;
8675 clock
.n
= (mdiv
>> DPIO_N_SHIFT
) & 0xf;
8676 clock
.p1
= (mdiv
>> DPIO_P1_SHIFT
) & 7;
8677 clock
.p2
= (mdiv
>> DPIO_P2_SHIFT
) & 0x1f;
8679 pipe_config
->port_clock
= vlv_calc_dpll_params(refclk
, &clock
);
8683 i9xx_get_initial_plane_config(struct intel_crtc
*crtc
,
8684 struct intel_initial_plane_config
*plane_config
)
8686 struct drm_device
*dev
= crtc
->base
.dev
;
8687 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8688 u32 val
, base
, offset
;
8689 int pipe
= crtc
->pipe
, plane
= crtc
->plane
;
8690 int fourcc
, pixel_format
;
8691 unsigned int aligned_height
;
8692 struct drm_framebuffer
*fb
;
8693 struct intel_framebuffer
*intel_fb
;
8695 val
= I915_READ(DSPCNTR(plane
));
8696 if (!(val
& DISPLAY_PLANE_ENABLE
))
8699 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
8701 DRM_DEBUG_KMS("failed to alloc fb\n");
8705 fb
= &intel_fb
->base
;
8707 if (INTEL_GEN(dev_priv
) >= 4) {
8708 if (val
& DISPPLANE_TILED
) {
8709 plane_config
->tiling
= I915_TILING_X
;
8710 fb
->modifier
[0] = I915_FORMAT_MOD_X_TILED
;
8714 pixel_format
= val
& DISPPLANE_PIXFORMAT_MASK
;
8715 fourcc
= i9xx_format_to_fourcc(pixel_format
);
8716 fb
->pixel_format
= fourcc
;
8717 fb
->bits_per_pixel
= drm_format_plane_cpp(fourcc
, 0) * 8;
8719 if (INTEL_GEN(dev_priv
) >= 4) {
8720 if (plane_config
->tiling
)
8721 offset
= I915_READ(DSPTILEOFF(plane
));
8723 offset
= I915_READ(DSPLINOFF(plane
));
8724 base
= I915_READ(DSPSURF(plane
)) & 0xfffff000;
8726 base
= I915_READ(DSPADDR(plane
));
8728 plane_config
->base
= base
;
8730 val
= I915_READ(PIPESRC(pipe
));
8731 fb
->width
= ((val
>> 16) & 0xfff) + 1;
8732 fb
->height
= ((val
>> 0) & 0xfff) + 1;
8734 val
= I915_READ(DSPSTRIDE(pipe
));
8735 fb
->pitches
[0] = val
& 0xffffffc0;
8737 aligned_height
= intel_fb_align_height(dev
, fb
->height
,
8741 plane_config
->size
= fb
->pitches
[0] * aligned_height
;
8743 DRM_DEBUG_KMS("pipe/plane %c/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
8744 pipe_name(pipe
), plane
, fb
->width
, fb
->height
,
8745 fb
->bits_per_pixel
, base
, fb
->pitches
[0],
8746 plane_config
->size
);
8748 plane_config
->fb
= intel_fb
;
8751 static void chv_crtc_clock_get(struct intel_crtc
*crtc
,
8752 struct intel_crtc_state
*pipe_config
)
8754 struct drm_device
*dev
= crtc
->base
.dev
;
8755 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8756 int pipe
= pipe_config
->cpu_transcoder
;
8757 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
8759 u32 cmn_dw13
, pll_dw0
, pll_dw1
, pll_dw2
, pll_dw3
;
8760 int refclk
= 100000;
8762 /* In case of DSI, DPLL will not be used */
8763 if ((pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
) == 0)
8766 mutex_lock(&dev_priv
->sb_lock
);
8767 cmn_dw13
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW13(port
));
8768 pll_dw0
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW0(port
));
8769 pll_dw1
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW1(port
));
8770 pll_dw2
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW2(port
));
8771 pll_dw3
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW3(port
));
8772 mutex_unlock(&dev_priv
->sb_lock
);
8774 clock
.m1
= (pll_dw1
& 0x7) == DPIO_CHV_M1_DIV_BY_2
? 2 : 0;
8775 clock
.m2
= (pll_dw0
& 0xff) << 22;
8776 if (pll_dw3
& DPIO_CHV_FRAC_DIV_EN
)
8777 clock
.m2
|= pll_dw2
& 0x3fffff;
8778 clock
.n
= (pll_dw1
>> DPIO_CHV_N_DIV_SHIFT
) & 0xf;
8779 clock
.p1
= (cmn_dw13
>> DPIO_CHV_P1_DIV_SHIFT
) & 0x7;
8780 clock
.p2
= (cmn_dw13
>> DPIO_CHV_P2_DIV_SHIFT
) & 0x1f;
8782 pipe_config
->port_clock
= chv_calc_dpll_params(refclk
, &clock
);
8785 static bool i9xx_get_pipe_config(struct intel_crtc
*crtc
,
8786 struct intel_crtc_state
*pipe_config
)
8788 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
8789 enum intel_display_power_domain power_domain
;
8793 power_domain
= POWER_DOMAIN_PIPE(crtc
->pipe
);
8794 if (!intel_display_power_get_if_enabled(dev_priv
, power_domain
))
8797 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
8798 pipe_config
->shared_dpll
= NULL
;
8802 tmp
= I915_READ(PIPECONF(crtc
->pipe
));
8803 if (!(tmp
& PIPECONF_ENABLE
))
8806 if (IS_G4X(dev_priv
) || IS_VALLEYVIEW(dev_priv
) ||
8807 IS_CHERRYVIEW(dev_priv
)) {
8808 switch (tmp
& PIPECONF_BPC_MASK
) {
8810 pipe_config
->pipe_bpp
= 18;
8813 pipe_config
->pipe_bpp
= 24;
8815 case PIPECONF_10BPC
:
8816 pipe_config
->pipe_bpp
= 30;
8823 if ((IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) &&
8824 (tmp
& PIPECONF_COLOR_RANGE_SELECT
))
8825 pipe_config
->limited_color_range
= true;
8827 if (INTEL_GEN(dev_priv
) < 4)
8828 pipe_config
->double_wide
= tmp
& PIPECONF_DOUBLE_WIDE
;
8830 intel_get_pipe_timings(crtc
, pipe_config
);
8831 intel_get_pipe_src_size(crtc
, pipe_config
);
8833 i9xx_get_pfit_config(crtc
, pipe_config
);
8835 if (INTEL_GEN(dev_priv
) >= 4) {
8836 /* No way to read it out on pipes B and C */
8837 if (IS_CHERRYVIEW(dev_priv
) && crtc
->pipe
!= PIPE_A
)
8838 tmp
= dev_priv
->chv_dpll_md
[crtc
->pipe
];
8840 tmp
= I915_READ(DPLL_MD(crtc
->pipe
));
8841 pipe_config
->pixel_multiplier
=
8842 ((tmp
& DPLL_MD_UDI_MULTIPLIER_MASK
)
8843 >> DPLL_MD_UDI_MULTIPLIER_SHIFT
) + 1;
8844 pipe_config
->dpll_hw_state
.dpll_md
= tmp
;
8845 } else if (IS_I945G(dev_priv
) || IS_I945GM(dev_priv
) ||
8847 tmp
= I915_READ(DPLL(crtc
->pipe
));
8848 pipe_config
->pixel_multiplier
=
8849 ((tmp
& SDVO_MULTIPLIER_MASK
)
8850 >> SDVO_MULTIPLIER_SHIFT_HIRES
) + 1;
8852 /* Note that on i915G/GM the pixel multiplier is in the sdvo
8853 * port and will be fixed up in the encoder->get_config
8855 pipe_config
->pixel_multiplier
= 1;
8857 pipe_config
->dpll_hw_state
.dpll
= I915_READ(DPLL(crtc
->pipe
));
8858 if (!IS_VALLEYVIEW(dev_priv
) && !IS_CHERRYVIEW(dev_priv
)) {
8860 * DPLL_DVO_2X_MODE must be enabled for both DPLLs
8861 * on 830. Filter it out here so that we don't
8862 * report errors due to that.
8864 if (IS_I830(dev_priv
))
8865 pipe_config
->dpll_hw_state
.dpll
&= ~DPLL_DVO_2X_MODE
;
8867 pipe_config
->dpll_hw_state
.fp0
= I915_READ(FP0(crtc
->pipe
));
8868 pipe_config
->dpll_hw_state
.fp1
= I915_READ(FP1(crtc
->pipe
));
8870 /* Mask out read-only status bits. */
8871 pipe_config
->dpll_hw_state
.dpll
&= ~(DPLL_LOCK_VLV
|
8872 DPLL_PORTC_READY_MASK
|
8873 DPLL_PORTB_READY_MASK
);
8876 if (IS_CHERRYVIEW(dev_priv
))
8877 chv_crtc_clock_get(crtc
, pipe_config
);
8878 else if (IS_VALLEYVIEW(dev_priv
))
8879 vlv_crtc_clock_get(crtc
, pipe_config
);
8881 i9xx_crtc_clock_get(crtc
, pipe_config
);
8884 * Normally the dotclock is filled in by the encoder .get_config()
8885 * but in case the pipe is enabled w/o any ports we need a sane
8888 pipe_config
->base
.adjusted_mode
.crtc_clock
=
8889 pipe_config
->port_clock
/ pipe_config
->pixel_multiplier
;
8894 intel_display_power_put(dev_priv
, power_domain
);
8899 static void ironlake_init_pch_refclk(struct drm_i915_private
*dev_priv
)
8901 struct intel_encoder
*encoder
;
8904 bool has_lvds
= false;
8905 bool has_cpu_edp
= false;
8906 bool has_panel
= false;
8907 bool has_ck505
= false;
8908 bool can_ssc
= false;
8909 bool using_ssc_source
= false;
8911 /* We need to take the global config into account */
8912 for_each_intel_encoder(&dev_priv
->drm
, encoder
) {
8913 switch (encoder
->type
) {
8914 case INTEL_OUTPUT_LVDS
:
8918 case INTEL_OUTPUT_EDP
:
8920 if (enc_to_dig_port(&encoder
->base
)->port
== PORT_A
)
8928 if (HAS_PCH_IBX(dev_priv
)) {
8929 has_ck505
= dev_priv
->vbt
.display_clock_mode
;
8930 can_ssc
= has_ck505
;
8936 /* Check if any DPLLs are using the SSC source */
8937 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
8938 u32 temp
= I915_READ(PCH_DPLL(i
));
8940 if (!(temp
& DPLL_VCO_ENABLE
))
8943 if ((temp
& PLL_REF_INPUT_MASK
) ==
8944 PLLB_REF_INPUT_SPREADSPECTRUMIN
) {
8945 using_ssc_source
= true;
8950 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d using_ssc_source %d\n",
8951 has_panel
, has_lvds
, has_ck505
, using_ssc_source
);
8953 /* Ironlake: try to setup display ref clock before DPLL
8954 * enabling. This is only under driver's control after
8955 * PCH B stepping, previous chipset stepping should be
8956 * ignoring this setting.
8958 val
= I915_READ(PCH_DREF_CONTROL
);
8960 /* As we must carefully and slowly disable/enable each source in turn,
8961 * compute the final state we want first and check if we need to
8962 * make any changes at all.
8965 final
&= ~DREF_NONSPREAD_SOURCE_MASK
;
8967 final
|= DREF_NONSPREAD_CK505_ENABLE
;
8969 final
|= DREF_NONSPREAD_SOURCE_ENABLE
;
8971 final
&= ~DREF_SSC_SOURCE_MASK
;
8972 final
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
8973 final
&= ~DREF_SSC1_ENABLE
;
8976 final
|= DREF_SSC_SOURCE_ENABLE
;
8978 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
8979 final
|= DREF_SSC1_ENABLE
;
8982 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
8983 final
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
8985 final
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
8987 final
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
8988 } else if (using_ssc_source
) {
8989 final
|= DREF_SSC_SOURCE_ENABLE
;
8990 final
|= DREF_SSC1_ENABLE
;
8996 /* Always enable nonspread source */
8997 val
&= ~DREF_NONSPREAD_SOURCE_MASK
;
9000 val
|= DREF_NONSPREAD_CK505_ENABLE
;
9002 val
|= DREF_NONSPREAD_SOURCE_ENABLE
;
9005 val
&= ~DREF_SSC_SOURCE_MASK
;
9006 val
|= DREF_SSC_SOURCE_ENABLE
;
9008 /* SSC must be turned on before enabling the CPU output */
9009 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
9010 DRM_DEBUG_KMS("Using SSC on panel\n");
9011 val
|= DREF_SSC1_ENABLE
;
9013 val
&= ~DREF_SSC1_ENABLE
;
9015 /* Get SSC going before enabling the outputs */
9016 I915_WRITE(PCH_DREF_CONTROL
, val
);
9017 POSTING_READ(PCH_DREF_CONTROL
);
9020 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
9022 /* Enable CPU source on CPU attached eDP */
9024 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
9025 DRM_DEBUG_KMS("Using SSC on eDP\n");
9026 val
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
9028 val
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
9030 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
9032 I915_WRITE(PCH_DREF_CONTROL
, val
);
9033 POSTING_READ(PCH_DREF_CONTROL
);
9036 DRM_DEBUG_KMS("Disabling CPU source output\n");
9038 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
9040 /* Turn off CPU output */
9041 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
9043 I915_WRITE(PCH_DREF_CONTROL
, val
);
9044 POSTING_READ(PCH_DREF_CONTROL
);
9047 if (!using_ssc_source
) {
9048 DRM_DEBUG_KMS("Disabling SSC source\n");
9050 /* Turn off the SSC source */
9051 val
&= ~DREF_SSC_SOURCE_MASK
;
9052 val
|= DREF_SSC_SOURCE_DISABLE
;
9055 val
&= ~DREF_SSC1_ENABLE
;
9057 I915_WRITE(PCH_DREF_CONTROL
, val
);
9058 POSTING_READ(PCH_DREF_CONTROL
);
9063 BUG_ON(val
!= final
);
9066 static void lpt_reset_fdi_mphy(struct drm_i915_private
*dev_priv
)
9070 tmp
= I915_READ(SOUTH_CHICKEN2
);
9071 tmp
|= FDI_MPHY_IOSFSB_RESET_CTL
;
9072 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
9074 if (wait_for_us(I915_READ(SOUTH_CHICKEN2
) &
9075 FDI_MPHY_IOSFSB_RESET_STATUS
, 100))
9076 DRM_ERROR("FDI mPHY reset assert timeout\n");
9078 tmp
= I915_READ(SOUTH_CHICKEN2
);
9079 tmp
&= ~FDI_MPHY_IOSFSB_RESET_CTL
;
9080 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
9082 if (wait_for_us((I915_READ(SOUTH_CHICKEN2
) &
9083 FDI_MPHY_IOSFSB_RESET_STATUS
) == 0, 100))
9084 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
9087 /* WaMPhyProgramming:hsw */
9088 static void lpt_program_fdi_mphy(struct drm_i915_private
*dev_priv
)
9092 tmp
= intel_sbi_read(dev_priv
, 0x8008, SBI_MPHY
);
9093 tmp
&= ~(0xFF << 24);
9094 tmp
|= (0x12 << 24);
9095 intel_sbi_write(dev_priv
, 0x8008, tmp
, SBI_MPHY
);
9097 tmp
= intel_sbi_read(dev_priv
, 0x2008, SBI_MPHY
);
9099 intel_sbi_write(dev_priv
, 0x2008, tmp
, SBI_MPHY
);
9101 tmp
= intel_sbi_read(dev_priv
, 0x2108, SBI_MPHY
);
9103 intel_sbi_write(dev_priv
, 0x2108, tmp
, SBI_MPHY
);
9105 tmp
= intel_sbi_read(dev_priv
, 0x206C, SBI_MPHY
);
9106 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
9107 intel_sbi_write(dev_priv
, 0x206C, tmp
, SBI_MPHY
);
9109 tmp
= intel_sbi_read(dev_priv
, 0x216C, SBI_MPHY
);
9110 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
9111 intel_sbi_write(dev_priv
, 0x216C, tmp
, SBI_MPHY
);
9113 tmp
= intel_sbi_read(dev_priv
, 0x2080, SBI_MPHY
);
9116 intel_sbi_write(dev_priv
, 0x2080, tmp
, SBI_MPHY
);
9118 tmp
= intel_sbi_read(dev_priv
, 0x2180, SBI_MPHY
);
9121 intel_sbi_write(dev_priv
, 0x2180, tmp
, SBI_MPHY
);
9123 tmp
= intel_sbi_read(dev_priv
, 0x208C, SBI_MPHY
);
9126 intel_sbi_write(dev_priv
, 0x208C, tmp
, SBI_MPHY
);
9128 tmp
= intel_sbi_read(dev_priv
, 0x218C, SBI_MPHY
);
9131 intel_sbi_write(dev_priv
, 0x218C, tmp
, SBI_MPHY
);
9133 tmp
= intel_sbi_read(dev_priv
, 0x2098, SBI_MPHY
);
9134 tmp
&= ~(0xFF << 16);
9135 tmp
|= (0x1C << 16);
9136 intel_sbi_write(dev_priv
, 0x2098, tmp
, SBI_MPHY
);
9138 tmp
= intel_sbi_read(dev_priv
, 0x2198, SBI_MPHY
);
9139 tmp
&= ~(0xFF << 16);
9140 tmp
|= (0x1C << 16);
9141 intel_sbi_write(dev_priv
, 0x2198, tmp
, SBI_MPHY
);
9143 tmp
= intel_sbi_read(dev_priv
, 0x20C4, SBI_MPHY
);
9145 intel_sbi_write(dev_priv
, 0x20C4, tmp
, SBI_MPHY
);
9147 tmp
= intel_sbi_read(dev_priv
, 0x21C4, SBI_MPHY
);
9149 intel_sbi_write(dev_priv
, 0x21C4, tmp
, SBI_MPHY
);
9151 tmp
= intel_sbi_read(dev_priv
, 0x20EC, SBI_MPHY
);
9152 tmp
&= ~(0xF << 28);
9154 intel_sbi_write(dev_priv
, 0x20EC, tmp
, SBI_MPHY
);
9156 tmp
= intel_sbi_read(dev_priv
, 0x21EC, SBI_MPHY
);
9157 tmp
&= ~(0xF << 28);
9159 intel_sbi_write(dev_priv
, 0x21EC, tmp
, SBI_MPHY
);
9162 /* Implements 3 different sequences from BSpec chapter "Display iCLK
9163 * Programming" based on the parameters passed:
9164 * - Sequence to enable CLKOUT_DP
9165 * - Sequence to enable CLKOUT_DP without spread
9166 * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O
9168 static void lpt_enable_clkout_dp(struct drm_i915_private
*dev_priv
,
9169 bool with_spread
, bool with_fdi
)
9173 if (WARN(with_fdi
&& !with_spread
, "FDI requires downspread\n"))
9175 if (WARN(HAS_PCH_LPT_LP(dev_priv
) &&
9176 with_fdi
, "LP PCH doesn't have FDI\n"))
9179 mutex_lock(&dev_priv
->sb_lock
);
9181 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
9182 tmp
&= ~SBI_SSCCTL_DISABLE
;
9183 tmp
|= SBI_SSCCTL_PATHALT
;
9184 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
9189 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
9190 tmp
&= ~SBI_SSCCTL_PATHALT
;
9191 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
9194 lpt_reset_fdi_mphy(dev_priv
);
9195 lpt_program_fdi_mphy(dev_priv
);
9199 reg
= HAS_PCH_LPT_LP(dev_priv
) ? SBI_GEN0
: SBI_DBUFF0
;
9200 tmp
= intel_sbi_read(dev_priv
, reg
, SBI_ICLK
);
9201 tmp
|= SBI_GEN0_CFG_BUFFENABLE_DISABLE
;
9202 intel_sbi_write(dev_priv
, reg
, tmp
, SBI_ICLK
);
9204 mutex_unlock(&dev_priv
->sb_lock
);
9207 /* Sequence to disable CLKOUT_DP */
9208 static void lpt_disable_clkout_dp(struct drm_i915_private
*dev_priv
)
9212 mutex_lock(&dev_priv
->sb_lock
);
9214 reg
= HAS_PCH_LPT_LP(dev_priv
) ? SBI_GEN0
: SBI_DBUFF0
;
9215 tmp
= intel_sbi_read(dev_priv
, reg
, SBI_ICLK
);
9216 tmp
&= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE
;
9217 intel_sbi_write(dev_priv
, reg
, tmp
, SBI_ICLK
);
9219 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
9220 if (!(tmp
& SBI_SSCCTL_DISABLE
)) {
9221 if (!(tmp
& SBI_SSCCTL_PATHALT
)) {
9222 tmp
|= SBI_SSCCTL_PATHALT
;
9223 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
9226 tmp
|= SBI_SSCCTL_DISABLE
;
9227 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
9230 mutex_unlock(&dev_priv
->sb_lock
);
9233 #define BEND_IDX(steps) ((50 + (steps)) / 5)
9235 static const uint16_t sscdivintphase
[] = {
9236 [BEND_IDX( 50)] = 0x3B23,
9237 [BEND_IDX( 45)] = 0x3B23,
9238 [BEND_IDX( 40)] = 0x3C23,
9239 [BEND_IDX( 35)] = 0x3C23,
9240 [BEND_IDX( 30)] = 0x3D23,
9241 [BEND_IDX( 25)] = 0x3D23,
9242 [BEND_IDX( 20)] = 0x3E23,
9243 [BEND_IDX( 15)] = 0x3E23,
9244 [BEND_IDX( 10)] = 0x3F23,
9245 [BEND_IDX( 5)] = 0x3F23,
9246 [BEND_IDX( 0)] = 0x0025,
9247 [BEND_IDX( -5)] = 0x0025,
9248 [BEND_IDX(-10)] = 0x0125,
9249 [BEND_IDX(-15)] = 0x0125,
9250 [BEND_IDX(-20)] = 0x0225,
9251 [BEND_IDX(-25)] = 0x0225,
9252 [BEND_IDX(-30)] = 0x0325,
9253 [BEND_IDX(-35)] = 0x0325,
9254 [BEND_IDX(-40)] = 0x0425,
9255 [BEND_IDX(-45)] = 0x0425,
9256 [BEND_IDX(-50)] = 0x0525,
9261 * steps -50 to 50 inclusive, in steps of 5
9262 * < 0 slow down the clock, > 0 speed up the clock, 0 == no bend (135MHz)
9263 * change in clock period = -(steps / 10) * 5.787 ps
9265 static void lpt_bend_clkout_dp(struct drm_i915_private
*dev_priv
, int steps
)
9268 int idx
= BEND_IDX(steps
);
9270 if (WARN_ON(steps
% 5 != 0))
9273 if (WARN_ON(idx
>= ARRAY_SIZE(sscdivintphase
)))
9276 mutex_lock(&dev_priv
->sb_lock
);
9278 if (steps
% 10 != 0)
9282 intel_sbi_write(dev_priv
, SBI_SSCDITHPHASE
, tmp
, SBI_ICLK
);
9284 tmp
= intel_sbi_read(dev_priv
, SBI_SSCDIVINTPHASE
, SBI_ICLK
);
9286 tmp
|= sscdivintphase
[idx
];
9287 intel_sbi_write(dev_priv
, SBI_SSCDIVINTPHASE
, tmp
, SBI_ICLK
);
9289 mutex_unlock(&dev_priv
->sb_lock
);
9294 static void lpt_init_pch_refclk(struct drm_i915_private
*dev_priv
)
9296 struct intel_encoder
*encoder
;
9297 bool has_vga
= false;
9299 for_each_intel_encoder(&dev_priv
->drm
, encoder
) {
9300 switch (encoder
->type
) {
9301 case INTEL_OUTPUT_ANALOG
:
9310 lpt_bend_clkout_dp(dev_priv
, 0);
9311 lpt_enable_clkout_dp(dev_priv
, true, true);
9313 lpt_disable_clkout_dp(dev_priv
);
9318 * Initialize reference clocks when the driver loads
9320 void intel_init_pch_refclk(struct drm_i915_private
*dev_priv
)
9322 if (HAS_PCH_IBX(dev_priv
) || HAS_PCH_CPT(dev_priv
))
9323 ironlake_init_pch_refclk(dev_priv
);
9324 else if (HAS_PCH_LPT(dev_priv
))
9325 lpt_init_pch_refclk(dev_priv
);
9328 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
)
9330 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
9331 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9332 int pipe
= intel_crtc
->pipe
;
9337 switch (intel_crtc
->config
->pipe_bpp
) {
9339 val
|= PIPECONF_6BPC
;
9342 val
|= PIPECONF_8BPC
;
9345 val
|= PIPECONF_10BPC
;
9348 val
|= PIPECONF_12BPC
;
9351 /* Case prevented by intel_choose_pipe_bpp_dither. */
9355 if (intel_crtc
->config
->dither
)
9356 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
9358 if (intel_crtc
->config
->base
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
9359 val
|= PIPECONF_INTERLACED_ILK
;
9361 val
|= PIPECONF_PROGRESSIVE
;
9363 if (intel_crtc
->config
->limited_color_range
)
9364 val
|= PIPECONF_COLOR_RANGE_SELECT
;
9366 I915_WRITE(PIPECONF(pipe
), val
);
9367 POSTING_READ(PIPECONF(pipe
));
9370 static void haswell_set_pipeconf(struct drm_crtc
*crtc
)
9372 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
9373 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9374 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
9377 if (IS_HASWELL(dev_priv
) && intel_crtc
->config
->dither
)
9378 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
9380 if (intel_crtc
->config
->base
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
9381 val
|= PIPECONF_INTERLACED_ILK
;
9383 val
|= PIPECONF_PROGRESSIVE
;
9385 I915_WRITE(PIPECONF(cpu_transcoder
), val
);
9386 POSTING_READ(PIPECONF(cpu_transcoder
));
9389 static void haswell_set_pipemisc(struct drm_crtc
*crtc
)
9391 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
9392 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9394 if (IS_BROADWELL(dev_priv
) || INTEL_INFO(dev_priv
)->gen
>= 9) {
9397 switch (intel_crtc
->config
->pipe_bpp
) {
9399 val
|= PIPEMISC_DITHER_6_BPC
;
9402 val
|= PIPEMISC_DITHER_8_BPC
;
9405 val
|= PIPEMISC_DITHER_10_BPC
;
9408 val
|= PIPEMISC_DITHER_12_BPC
;
9411 /* Case prevented by pipe_config_set_bpp. */
9415 if (intel_crtc
->config
->dither
)
9416 val
|= PIPEMISC_DITHER_ENABLE
| PIPEMISC_DITHER_TYPE_SP
;
9418 I915_WRITE(PIPEMISC(intel_crtc
->pipe
), val
);
9422 int ironlake_get_lanes_required(int target_clock
, int link_bw
, int bpp
)
9425 * Account for spread spectrum to avoid
9426 * oversubscribing the link. Max center spread
9427 * is 2.5%; use 5% for safety's sake.
9429 u32 bps
= target_clock
* bpp
* 21 / 20;
9430 return DIV_ROUND_UP(bps
, link_bw
* 8);
9433 static bool ironlake_needs_fb_cb_tune(struct dpll
*dpll
, int factor
)
9435 return i9xx_dpll_compute_m(dpll
) < factor
* dpll
->n
;
9438 static void ironlake_compute_dpll(struct intel_crtc
*intel_crtc
,
9439 struct intel_crtc_state
*crtc_state
,
9440 struct dpll
*reduced_clock
)
9442 struct drm_crtc
*crtc
= &intel_crtc
->base
;
9443 struct drm_device
*dev
= crtc
->dev
;
9444 struct drm_i915_private
*dev_priv
= to_i915(dev
);
9448 /* Enable autotuning of the PLL clock (if permissible) */
9450 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
9451 if ((intel_panel_use_ssc(dev_priv
) &&
9452 dev_priv
->vbt
.lvds_ssc_freq
== 100000) ||
9453 (HAS_PCH_IBX(dev_priv
) && intel_is_dual_link_lvds(dev
)))
9455 } else if (crtc_state
->sdvo_tv_clock
)
9458 fp
= i9xx_dpll_compute_fp(&crtc_state
->dpll
);
9460 if (ironlake_needs_fb_cb_tune(&crtc_state
->dpll
, factor
))
9463 if (reduced_clock
) {
9464 fp2
= i9xx_dpll_compute_fp(reduced_clock
);
9466 if (reduced_clock
->m
< factor
* reduced_clock
->n
)
9474 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
))
9475 dpll
|= DPLLB_MODE_LVDS
;
9477 dpll
|= DPLLB_MODE_DAC_SERIAL
;
9479 dpll
|= (crtc_state
->pixel_multiplier
- 1)
9480 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
;
9482 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_SDVO
) ||
9483 intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_HDMI
))
9484 dpll
|= DPLL_SDVO_HIGH_SPEED
;
9486 if (intel_crtc_has_dp_encoder(crtc_state
))
9487 dpll
|= DPLL_SDVO_HIGH_SPEED
;
9490 * The high speed IO clock is only really required for
9491 * SDVO/HDMI/DP, but we also enable it for CRT to make it
9492 * possible to share the DPLL between CRT and HDMI. Enabling
9493 * the clock needlessly does no real harm, except use up a
9494 * bit of power potentially.
9496 * We'll limit this to IVB with 3 pipes, since it has only two
9497 * DPLLs and so DPLL sharing is the only way to get three pipes
9498 * driving PCH ports at the same time. On SNB we could do this,
9499 * and potentially avoid enabling the second DPLL, but it's not
9500 * clear if it''s a win or loss power wise. No point in doing
9501 * this on ILK at all since it has a fixed DPLL<->pipe mapping.
9503 if (INTEL_INFO(dev_priv
)->num_pipes
== 3 &&
9504 intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_ANALOG
))
9505 dpll
|= DPLL_SDVO_HIGH_SPEED
;
9507 /* compute bitmask from p1 value */
9508 dpll
|= (1 << (crtc_state
->dpll
.p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
9510 dpll
|= (1 << (crtc_state
->dpll
.p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
9512 switch (crtc_state
->dpll
.p2
) {
9514 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
9517 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
9520 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
9523 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
9527 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
9528 intel_panel_use_ssc(dev_priv
))
9529 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
9531 dpll
|= PLL_REF_INPUT_DREFCLK
;
9533 dpll
|= DPLL_VCO_ENABLE
;
9535 crtc_state
->dpll_hw_state
.dpll
= dpll
;
9536 crtc_state
->dpll_hw_state
.fp0
= fp
;
9537 crtc_state
->dpll_hw_state
.fp1
= fp2
;
9540 static int ironlake_crtc_compute_clock(struct intel_crtc
*crtc
,
9541 struct intel_crtc_state
*crtc_state
)
9543 struct drm_device
*dev
= crtc
->base
.dev
;
9544 struct drm_i915_private
*dev_priv
= to_i915(dev
);
9545 struct dpll reduced_clock
;
9546 bool has_reduced_clock
= false;
9547 struct intel_shared_dpll
*pll
;
9548 const struct intel_limit
*limit
;
9549 int refclk
= 120000;
9551 memset(&crtc_state
->dpll_hw_state
, 0,
9552 sizeof(crtc_state
->dpll_hw_state
));
9554 crtc
->lowfreq_avail
= false;
9556 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
9557 if (!crtc_state
->has_pch_encoder
)
9560 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
9561 if (intel_panel_use_ssc(dev_priv
)) {
9562 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n",
9563 dev_priv
->vbt
.lvds_ssc_freq
);
9564 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
9567 if (intel_is_dual_link_lvds(dev
)) {
9568 if (refclk
== 100000)
9569 limit
= &intel_limits_ironlake_dual_lvds_100m
;
9571 limit
= &intel_limits_ironlake_dual_lvds
;
9573 if (refclk
== 100000)
9574 limit
= &intel_limits_ironlake_single_lvds_100m
;
9576 limit
= &intel_limits_ironlake_single_lvds
;
9579 limit
= &intel_limits_ironlake_dac
;
9582 if (!crtc_state
->clock_set
&&
9583 !g4x_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
9584 refclk
, NULL
, &crtc_state
->dpll
)) {
9585 DRM_ERROR("Couldn't find PLL settings for mode!\n");
9589 ironlake_compute_dpll(crtc
, crtc_state
,
9590 has_reduced_clock
? &reduced_clock
: NULL
);
9592 pll
= intel_get_shared_dpll(crtc
, crtc_state
, NULL
);
9594 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
9595 pipe_name(crtc
->pipe
));
9599 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
9601 crtc
->lowfreq_avail
= true;
9606 static void intel_pch_transcoder_get_m_n(struct intel_crtc
*crtc
,
9607 struct intel_link_m_n
*m_n
)
9609 struct drm_device
*dev
= crtc
->base
.dev
;
9610 struct drm_i915_private
*dev_priv
= to_i915(dev
);
9611 enum pipe pipe
= crtc
->pipe
;
9613 m_n
->link_m
= I915_READ(PCH_TRANS_LINK_M1(pipe
));
9614 m_n
->link_n
= I915_READ(PCH_TRANS_LINK_N1(pipe
));
9615 m_n
->gmch_m
= I915_READ(PCH_TRANS_DATA_M1(pipe
))
9617 m_n
->gmch_n
= I915_READ(PCH_TRANS_DATA_N1(pipe
));
9618 m_n
->tu
= ((I915_READ(PCH_TRANS_DATA_M1(pipe
))
9619 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
9622 static void intel_cpu_transcoder_get_m_n(struct intel_crtc
*crtc
,
9623 enum transcoder transcoder
,
9624 struct intel_link_m_n
*m_n
,
9625 struct intel_link_m_n
*m2_n2
)
9627 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
9628 enum pipe pipe
= crtc
->pipe
;
9630 if (INTEL_GEN(dev_priv
) >= 5) {
9631 m_n
->link_m
= I915_READ(PIPE_LINK_M1(transcoder
));
9632 m_n
->link_n
= I915_READ(PIPE_LINK_N1(transcoder
));
9633 m_n
->gmch_m
= I915_READ(PIPE_DATA_M1(transcoder
))
9635 m_n
->gmch_n
= I915_READ(PIPE_DATA_N1(transcoder
));
9636 m_n
->tu
= ((I915_READ(PIPE_DATA_M1(transcoder
))
9637 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
9638 /* Read M2_N2 registers only for gen < 8 (M2_N2 available for
9639 * gen < 8) and if DRRS is supported (to make sure the
9640 * registers are not unnecessarily read).
9642 if (m2_n2
&& INTEL_GEN(dev_priv
) < 8 &&
9643 crtc
->config
->has_drrs
) {
9644 m2_n2
->link_m
= I915_READ(PIPE_LINK_M2(transcoder
));
9645 m2_n2
->link_n
= I915_READ(PIPE_LINK_N2(transcoder
));
9646 m2_n2
->gmch_m
= I915_READ(PIPE_DATA_M2(transcoder
))
9648 m2_n2
->gmch_n
= I915_READ(PIPE_DATA_N2(transcoder
));
9649 m2_n2
->tu
= ((I915_READ(PIPE_DATA_M2(transcoder
))
9650 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
9653 m_n
->link_m
= I915_READ(PIPE_LINK_M_G4X(pipe
));
9654 m_n
->link_n
= I915_READ(PIPE_LINK_N_G4X(pipe
));
9655 m_n
->gmch_m
= I915_READ(PIPE_DATA_M_G4X(pipe
))
9657 m_n
->gmch_n
= I915_READ(PIPE_DATA_N_G4X(pipe
));
9658 m_n
->tu
= ((I915_READ(PIPE_DATA_M_G4X(pipe
))
9659 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
9663 void intel_dp_get_m_n(struct intel_crtc
*crtc
,
9664 struct intel_crtc_state
*pipe_config
)
9666 if (pipe_config
->has_pch_encoder
)
9667 intel_pch_transcoder_get_m_n(crtc
, &pipe_config
->dp_m_n
);
9669 intel_cpu_transcoder_get_m_n(crtc
, pipe_config
->cpu_transcoder
,
9670 &pipe_config
->dp_m_n
,
9671 &pipe_config
->dp_m2_n2
);
9674 static void ironlake_get_fdi_m_n_config(struct intel_crtc
*crtc
,
9675 struct intel_crtc_state
*pipe_config
)
9677 intel_cpu_transcoder_get_m_n(crtc
, pipe_config
->cpu_transcoder
,
9678 &pipe_config
->fdi_m_n
, NULL
);
9681 static void skylake_get_pfit_config(struct intel_crtc
*crtc
,
9682 struct intel_crtc_state
*pipe_config
)
9684 struct drm_device
*dev
= crtc
->base
.dev
;
9685 struct drm_i915_private
*dev_priv
= to_i915(dev
);
9686 struct intel_crtc_scaler_state
*scaler_state
= &pipe_config
->scaler_state
;
9687 uint32_t ps_ctrl
= 0;
9691 /* find scaler attached to this pipe */
9692 for (i
= 0; i
< crtc
->num_scalers
; i
++) {
9693 ps_ctrl
= I915_READ(SKL_PS_CTRL(crtc
->pipe
, i
));
9694 if (ps_ctrl
& PS_SCALER_EN
&& !(ps_ctrl
& PS_PLANE_SEL_MASK
)) {
9696 pipe_config
->pch_pfit
.enabled
= true;
9697 pipe_config
->pch_pfit
.pos
= I915_READ(SKL_PS_WIN_POS(crtc
->pipe
, i
));
9698 pipe_config
->pch_pfit
.size
= I915_READ(SKL_PS_WIN_SZ(crtc
->pipe
, i
));
9703 scaler_state
->scaler_id
= id
;
9705 scaler_state
->scaler_users
|= (1 << SKL_CRTC_INDEX
);
9707 scaler_state
->scaler_users
&= ~(1 << SKL_CRTC_INDEX
);
9712 skylake_get_initial_plane_config(struct intel_crtc
*crtc
,
9713 struct intel_initial_plane_config
*plane_config
)
9715 struct drm_device
*dev
= crtc
->base
.dev
;
9716 struct drm_i915_private
*dev_priv
= to_i915(dev
);
9717 u32 val
, base
, offset
, stride_mult
, tiling
;
9718 int pipe
= crtc
->pipe
;
9719 int fourcc
, pixel_format
;
9720 unsigned int aligned_height
;
9721 struct drm_framebuffer
*fb
;
9722 struct intel_framebuffer
*intel_fb
;
9724 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
9726 DRM_DEBUG_KMS("failed to alloc fb\n");
9730 fb
= &intel_fb
->base
;
9732 val
= I915_READ(PLANE_CTL(pipe
, 0));
9733 if (!(val
& PLANE_CTL_ENABLE
))
9736 pixel_format
= val
& PLANE_CTL_FORMAT_MASK
;
9737 fourcc
= skl_format_to_fourcc(pixel_format
,
9738 val
& PLANE_CTL_ORDER_RGBX
,
9739 val
& PLANE_CTL_ALPHA_MASK
);
9740 fb
->pixel_format
= fourcc
;
9741 fb
->bits_per_pixel
= drm_format_plane_cpp(fourcc
, 0) * 8;
9743 tiling
= val
& PLANE_CTL_TILED_MASK
;
9745 case PLANE_CTL_TILED_LINEAR
:
9746 fb
->modifier
[0] = DRM_FORMAT_MOD_NONE
;
9748 case PLANE_CTL_TILED_X
:
9749 plane_config
->tiling
= I915_TILING_X
;
9750 fb
->modifier
[0] = I915_FORMAT_MOD_X_TILED
;
9752 case PLANE_CTL_TILED_Y
:
9753 fb
->modifier
[0] = I915_FORMAT_MOD_Y_TILED
;
9755 case PLANE_CTL_TILED_YF
:
9756 fb
->modifier
[0] = I915_FORMAT_MOD_Yf_TILED
;
9759 MISSING_CASE(tiling
);
9763 base
= I915_READ(PLANE_SURF(pipe
, 0)) & 0xfffff000;
9764 plane_config
->base
= base
;
9766 offset
= I915_READ(PLANE_OFFSET(pipe
, 0));
9768 val
= I915_READ(PLANE_SIZE(pipe
, 0));
9769 fb
->height
= ((val
>> 16) & 0xfff) + 1;
9770 fb
->width
= ((val
>> 0) & 0x1fff) + 1;
9772 val
= I915_READ(PLANE_STRIDE(pipe
, 0));
9773 stride_mult
= intel_fb_stride_alignment(dev_priv
, fb
->modifier
[0],
9775 fb
->pitches
[0] = (val
& 0x3ff) * stride_mult
;
9777 aligned_height
= intel_fb_align_height(dev
, fb
->height
,
9781 plane_config
->size
= fb
->pitches
[0] * aligned_height
;
9783 DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
9784 pipe_name(pipe
), fb
->width
, fb
->height
,
9785 fb
->bits_per_pixel
, base
, fb
->pitches
[0],
9786 plane_config
->size
);
9788 plane_config
->fb
= intel_fb
;
9795 static void ironlake_get_pfit_config(struct intel_crtc
*crtc
,
9796 struct intel_crtc_state
*pipe_config
)
9798 struct drm_device
*dev
= crtc
->base
.dev
;
9799 struct drm_i915_private
*dev_priv
= to_i915(dev
);
9802 tmp
= I915_READ(PF_CTL(crtc
->pipe
));
9804 if (tmp
& PF_ENABLE
) {
9805 pipe_config
->pch_pfit
.enabled
= true;
9806 pipe_config
->pch_pfit
.pos
= I915_READ(PF_WIN_POS(crtc
->pipe
));
9807 pipe_config
->pch_pfit
.size
= I915_READ(PF_WIN_SZ(crtc
->pipe
));
9809 /* We currently do not free assignements of panel fitters on
9810 * ivb/hsw (since we don't use the higher upscaling modes which
9811 * differentiates them) so just WARN about this case for now. */
9812 if (IS_GEN7(dev_priv
)) {
9813 WARN_ON((tmp
& PF_PIPE_SEL_MASK_IVB
) !=
9814 PF_PIPE_SEL_IVB(crtc
->pipe
));
9820 ironlake_get_initial_plane_config(struct intel_crtc
*crtc
,
9821 struct intel_initial_plane_config
*plane_config
)
9823 struct drm_device
*dev
= crtc
->base
.dev
;
9824 struct drm_i915_private
*dev_priv
= to_i915(dev
);
9825 u32 val
, base
, offset
;
9826 int pipe
= crtc
->pipe
;
9827 int fourcc
, pixel_format
;
9828 unsigned int aligned_height
;
9829 struct drm_framebuffer
*fb
;
9830 struct intel_framebuffer
*intel_fb
;
9832 val
= I915_READ(DSPCNTR(pipe
));
9833 if (!(val
& DISPLAY_PLANE_ENABLE
))
9836 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
9838 DRM_DEBUG_KMS("failed to alloc fb\n");
9842 fb
= &intel_fb
->base
;
9844 if (INTEL_GEN(dev_priv
) >= 4) {
9845 if (val
& DISPPLANE_TILED
) {
9846 plane_config
->tiling
= I915_TILING_X
;
9847 fb
->modifier
[0] = I915_FORMAT_MOD_X_TILED
;
9851 pixel_format
= val
& DISPPLANE_PIXFORMAT_MASK
;
9852 fourcc
= i9xx_format_to_fourcc(pixel_format
);
9853 fb
->pixel_format
= fourcc
;
9854 fb
->bits_per_pixel
= drm_format_plane_cpp(fourcc
, 0) * 8;
9856 base
= I915_READ(DSPSURF(pipe
)) & 0xfffff000;
9857 if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
)) {
9858 offset
= I915_READ(DSPOFFSET(pipe
));
9860 if (plane_config
->tiling
)
9861 offset
= I915_READ(DSPTILEOFF(pipe
));
9863 offset
= I915_READ(DSPLINOFF(pipe
));
9865 plane_config
->base
= base
;
9867 val
= I915_READ(PIPESRC(pipe
));
9868 fb
->width
= ((val
>> 16) & 0xfff) + 1;
9869 fb
->height
= ((val
>> 0) & 0xfff) + 1;
9871 val
= I915_READ(DSPSTRIDE(pipe
));
9872 fb
->pitches
[0] = val
& 0xffffffc0;
9874 aligned_height
= intel_fb_align_height(dev
, fb
->height
,
9878 plane_config
->size
= fb
->pitches
[0] * aligned_height
;
9880 DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
9881 pipe_name(pipe
), fb
->width
, fb
->height
,
9882 fb
->bits_per_pixel
, base
, fb
->pitches
[0],
9883 plane_config
->size
);
9885 plane_config
->fb
= intel_fb
;
9888 static bool ironlake_get_pipe_config(struct intel_crtc
*crtc
,
9889 struct intel_crtc_state
*pipe_config
)
9891 struct drm_device
*dev
= crtc
->base
.dev
;
9892 struct drm_i915_private
*dev_priv
= to_i915(dev
);
9893 enum intel_display_power_domain power_domain
;
9897 power_domain
= POWER_DOMAIN_PIPE(crtc
->pipe
);
9898 if (!intel_display_power_get_if_enabled(dev_priv
, power_domain
))
9901 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
9902 pipe_config
->shared_dpll
= NULL
;
9905 tmp
= I915_READ(PIPECONF(crtc
->pipe
));
9906 if (!(tmp
& PIPECONF_ENABLE
))
9909 switch (tmp
& PIPECONF_BPC_MASK
) {
9911 pipe_config
->pipe_bpp
= 18;
9914 pipe_config
->pipe_bpp
= 24;
9916 case PIPECONF_10BPC
:
9917 pipe_config
->pipe_bpp
= 30;
9919 case PIPECONF_12BPC
:
9920 pipe_config
->pipe_bpp
= 36;
9926 if (tmp
& PIPECONF_COLOR_RANGE_SELECT
)
9927 pipe_config
->limited_color_range
= true;
9929 if (I915_READ(PCH_TRANSCONF(crtc
->pipe
)) & TRANS_ENABLE
) {
9930 struct intel_shared_dpll
*pll
;
9931 enum intel_dpll_id pll_id
;
9933 pipe_config
->has_pch_encoder
= true;
9935 tmp
= I915_READ(FDI_RX_CTL(crtc
->pipe
));
9936 pipe_config
->fdi_lanes
= ((FDI_DP_PORT_WIDTH_MASK
& tmp
) >>
9937 FDI_DP_PORT_WIDTH_SHIFT
) + 1;
9939 ironlake_get_fdi_m_n_config(crtc
, pipe_config
);
9941 if (HAS_PCH_IBX(dev_priv
)) {
9943 * The pipe->pch transcoder and pch transcoder->pll
9946 pll_id
= (enum intel_dpll_id
) crtc
->pipe
;
9948 tmp
= I915_READ(PCH_DPLL_SEL
);
9949 if (tmp
& TRANS_DPLLB_SEL(crtc
->pipe
))
9950 pll_id
= DPLL_ID_PCH_PLL_B
;
9952 pll_id
= DPLL_ID_PCH_PLL_A
;
9955 pipe_config
->shared_dpll
=
9956 intel_get_shared_dpll_by_id(dev_priv
, pll_id
);
9957 pll
= pipe_config
->shared_dpll
;
9959 WARN_ON(!pll
->funcs
.get_hw_state(dev_priv
, pll
,
9960 &pipe_config
->dpll_hw_state
));
9962 tmp
= pipe_config
->dpll_hw_state
.dpll
;
9963 pipe_config
->pixel_multiplier
=
9964 ((tmp
& PLL_REF_SDVO_HDMI_MULTIPLIER_MASK
)
9965 >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
) + 1;
9967 ironlake_pch_clock_get(crtc
, pipe_config
);
9969 pipe_config
->pixel_multiplier
= 1;
9972 intel_get_pipe_timings(crtc
, pipe_config
);
9973 intel_get_pipe_src_size(crtc
, pipe_config
);
9975 ironlake_get_pfit_config(crtc
, pipe_config
);
9980 intel_display_power_put(dev_priv
, power_domain
);
9985 static void assert_can_disable_lcpll(struct drm_i915_private
*dev_priv
)
9987 struct drm_device
*dev
= &dev_priv
->drm
;
9988 struct intel_crtc
*crtc
;
9990 for_each_intel_crtc(dev
, crtc
)
9991 I915_STATE_WARN(crtc
->active
, "CRTC for pipe %c enabled\n",
9992 pipe_name(crtc
->pipe
));
9994 I915_STATE_WARN(I915_READ(HSW_PWR_WELL_DRIVER
), "Power well on\n");
9995 I915_STATE_WARN(I915_READ(SPLL_CTL
) & SPLL_PLL_ENABLE
, "SPLL enabled\n");
9996 I915_STATE_WARN(I915_READ(WRPLL_CTL(0)) & WRPLL_PLL_ENABLE
, "WRPLL1 enabled\n");
9997 I915_STATE_WARN(I915_READ(WRPLL_CTL(1)) & WRPLL_PLL_ENABLE
, "WRPLL2 enabled\n");
9998 I915_STATE_WARN(I915_READ(PP_STATUS(0)) & PP_ON
, "Panel power on\n");
9999 I915_STATE_WARN(I915_READ(BLC_PWM_CPU_CTL2
) & BLM_PWM_ENABLE
,
10000 "CPU PWM1 enabled\n");
10001 if (IS_HASWELL(dev_priv
))
10002 I915_STATE_WARN(I915_READ(HSW_BLC_PWM2_CTL
) & BLM_PWM_ENABLE
,
10003 "CPU PWM2 enabled\n");
10004 I915_STATE_WARN(I915_READ(BLC_PWM_PCH_CTL1
) & BLM_PCH_PWM_ENABLE
,
10005 "PCH PWM1 enabled\n");
10006 I915_STATE_WARN(I915_READ(UTIL_PIN_CTL
) & UTIL_PIN_ENABLE
,
10007 "Utility pin enabled\n");
10008 I915_STATE_WARN(I915_READ(PCH_GTC_CTL
) & PCH_GTC_ENABLE
, "PCH GTC enabled\n");
10011 * In theory we can still leave IRQs enabled, as long as only the HPD
10012 * interrupts remain enabled. We used to check for that, but since it's
10013 * gen-specific and since we only disable LCPLL after we fully disable
10014 * the interrupts, the check below should be enough.
10016 I915_STATE_WARN(intel_irqs_enabled(dev_priv
), "IRQs enabled\n");
10019 static uint32_t hsw_read_dcomp(struct drm_i915_private
*dev_priv
)
10021 if (IS_HASWELL(dev_priv
))
10022 return I915_READ(D_COMP_HSW
);
10024 return I915_READ(D_COMP_BDW
);
10027 static void hsw_write_dcomp(struct drm_i915_private
*dev_priv
, uint32_t val
)
10029 if (IS_HASWELL(dev_priv
)) {
10030 mutex_lock(&dev_priv
->rps
.hw_lock
);
10031 if (sandybridge_pcode_write(dev_priv
, GEN6_PCODE_WRITE_D_COMP
,
10033 DRM_DEBUG_KMS("Failed to write to D_COMP\n");
10034 mutex_unlock(&dev_priv
->rps
.hw_lock
);
10036 I915_WRITE(D_COMP_BDW
, val
);
10037 POSTING_READ(D_COMP_BDW
);
10042 * This function implements pieces of two sequences from BSpec:
10043 * - Sequence for display software to disable LCPLL
10044 * - Sequence for display software to allow package C8+
10045 * The steps implemented here are just the steps that actually touch the LCPLL
10046 * register. Callers should take care of disabling all the display engine
10047 * functions, doing the mode unset, fixing interrupts, etc.
10049 static void hsw_disable_lcpll(struct drm_i915_private
*dev_priv
,
10050 bool switch_to_fclk
, bool allow_power_down
)
10054 assert_can_disable_lcpll(dev_priv
);
10056 val
= I915_READ(LCPLL_CTL
);
10058 if (switch_to_fclk
) {
10059 val
|= LCPLL_CD_SOURCE_FCLK
;
10060 I915_WRITE(LCPLL_CTL
, val
);
10062 if (wait_for_us(I915_READ(LCPLL_CTL
) &
10063 LCPLL_CD_SOURCE_FCLK_DONE
, 1))
10064 DRM_ERROR("Switching to FCLK failed\n");
10066 val
= I915_READ(LCPLL_CTL
);
10069 val
|= LCPLL_PLL_DISABLE
;
10070 I915_WRITE(LCPLL_CTL
, val
);
10071 POSTING_READ(LCPLL_CTL
);
10073 if (intel_wait_for_register(dev_priv
, LCPLL_CTL
, LCPLL_PLL_LOCK
, 0, 1))
10074 DRM_ERROR("LCPLL still locked\n");
10076 val
= hsw_read_dcomp(dev_priv
);
10077 val
|= D_COMP_COMP_DISABLE
;
10078 hsw_write_dcomp(dev_priv
, val
);
10081 if (wait_for((hsw_read_dcomp(dev_priv
) & D_COMP_RCOMP_IN_PROGRESS
) == 0,
10083 DRM_ERROR("D_COMP RCOMP still in progress\n");
10085 if (allow_power_down
) {
10086 val
= I915_READ(LCPLL_CTL
);
10087 val
|= LCPLL_POWER_DOWN_ALLOW
;
10088 I915_WRITE(LCPLL_CTL
, val
);
10089 POSTING_READ(LCPLL_CTL
);
10094 * Fully restores LCPLL, disallowing power down and switching back to LCPLL
10097 static void hsw_restore_lcpll(struct drm_i915_private
*dev_priv
)
10101 val
= I915_READ(LCPLL_CTL
);
10103 if ((val
& (LCPLL_PLL_LOCK
| LCPLL_PLL_DISABLE
| LCPLL_CD_SOURCE_FCLK
|
10104 LCPLL_POWER_DOWN_ALLOW
)) == LCPLL_PLL_LOCK
)
10108 * Make sure we're not on PC8 state before disabling PC8, otherwise
10109 * we'll hang the machine. To prevent PC8 state, just enable force_wake.
10111 intel_uncore_forcewake_get(dev_priv
, FORCEWAKE_ALL
);
10113 if (val
& LCPLL_POWER_DOWN_ALLOW
) {
10114 val
&= ~LCPLL_POWER_DOWN_ALLOW
;
10115 I915_WRITE(LCPLL_CTL
, val
);
10116 POSTING_READ(LCPLL_CTL
);
10119 val
= hsw_read_dcomp(dev_priv
);
10120 val
|= D_COMP_COMP_FORCE
;
10121 val
&= ~D_COMP_COMP_DISABLE
;
10122 hsw_write_dcomp(dev_priv
, val
);
10124 val
= I915_READ(LCPLL_CTL
);
10125 val
&= ~LCPLL_PLL_DISABLE
;
10126 I915_WRITE(LCPLL_CTL
, val
);
10128 if (intel_wait_for_register(dev_priv
,
10129 LCPLL_CTL
, LCPLL_PLL_LOCK
, LCPLL_PLL_LOCK
,
10131 DRM_ERROR("LCPLL not locked yet\n");
10133 if (val
& LCPLL_CD_SOURCE_FCLK
) {
10134 val
= I915_READ(LCPLL_CTL
);
10135 val
&= ~LCPLL_CD_SOURCE_FCLK
;
10136 I915_WRITE(LCPLL_CTL
, val
);
10138 if (wait_for_us((I915_READ(LCPLL_CTL
) &
10139 LCPLL_CD_SOURCE_FCLK_DONE
) == 0, 1))
10140 DRM_ERROR("Switching back to LCPLL failed\n");
10143 intel_uncore_forcewake_put(dev_priv
, FORCEWAKE_ALL
);
10144 intel_update_cdclk(dev_priv
);
10148 * Package states C8 and deeper are really deep PC states that can only be
10149 * reached when all the devices on the system allow it, so even if the graphics
10150 * device allows PC8+, it doesn't mean the system will actually get to these
10151 * states. Our driver only allows PC8+ when going into runtime PM.
10153 * The requirements for PC8+ are that all the outputs are disabled, the power
10154 * well is disabled and most interrupts are disabled, and these are also
10155 * requirements for runtime PM. When these conditions are met, we manually do
10156 * the other conditions: disable the interrupts, clocks and switch LCPLL refclk
10157 * to Fclk. If we're in PC8+ and we get an non-hotplug interrupt, we can hard
10158 * hang the machine.
10160 * When we really reach PC8 or deeper states (not just when we allow it) we lose
10161 * the state of some registers, so when we come back from PC8+ we need to
10162 * restore this state. We don't get into PC8+ if we're not in RC6, so we don't
10163 * need to take care of the registers kept by RC6. Notice that this happens even
10164 * if we don't put the device in PCI D3 state (which is what currently happens
10165 * because of the runtime PM support).
10167 * For more, read "Display Sequences for Package C8" on the hardware
10170 void hsw_enable_pc8(struct drm_i915_private
*dev_priv
)
10174 DRM_DEBUG_KMS("Enabling package C8+\n");
10176 if (HAS_PCH_LPT_LP(dev_priv
)) {
10177 val
= I915_READ(SOUTH_DSPCLK_GATE_D
);
10178 val
&= ~PCH_LP_PARTITION_LEVEL_DISABLE
;
10179 I915_WRITE(SOUTH_DSPCLK_GATE_D
, val
);
10182 lpt_disable_clkout_dp(dev_priv
);
10183 hsw_disable_lcpll(dev_priv
, true, true);
10186 void hsw_disable_pc8(struct drm_i915_private
*dev_priv
)
10190 DRM_DEBUG_KMS("Disabling package C8+\n");
10192 hsw_restore_lcpll(dev_priv
);
10193 lpt_init_pch_refclk(dev_priv
);
10195 if (HAS_PCH_LPT_LP(dev_priv
)) {
10196 val
= I915_READ(SOUTH_DSPCLK_GATE_D
);
10197 val
|= PCH_LP_PARTITION_LEVEL_DISABLE
;
10198 I915_WRITE(SOUTH_DSPCLK_GATE_D
, val
);
10202 static void bxt_modeset_commit_cdclk(struct drm_atomic_state
*old_state
)
10204 struct drm_device
*dev
= old_state
->dev
;
10205 struct intel_atomic_state
*old_intel_state
=
10206 to_intel_atomic_state(old_state
);
10207 unsigned int req_cdclk
= old_intel_state
->dev_cdclk
;
10209 bxt_set_cdclk(to_i915(dev
), req_cdclk
);
10212 static int bdw_adjust_min_pipe_pixel_rate(struct intel_crtc_state
*crtc_state
,
10215 struct drm_i915_private
*dev_priv
= to_i915(crtc_state
->base
.crtc
->dev
);
10217 /* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */
10218 if (IS_BROADWELL(dev_priv
) && crtc_state
->ips_enabled
)
10219 pixel_rate
= DIV_ROUND_UP(pixel_rate
* 100, 95);
10221 /* BSpec says "Do not use DisplayPort with CDCLK less than
10222 * 432 MHz, audio enabled, port width x4, and link rate
10223 * HBR2 (5.4 GHz), or else there may be audio corruption or
10224 * screen corruption."
10226 if (intel_crtc_has_dp_encoder(crtc_state
) &&
10227 crtc_state
->has_audio
&&
10228 crtc_state
->port_clock
>= 540000 &&
10229 crtc_state
->lane_count
== 4)
10230 pixel_rate
= max(432000, pixel_rate
);
10235 /* compute the max rate for new configuration */
10236 static int ilk_max_pixel_rate(struct drm_atomic_state
*state
)
10238 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
10239 struct drm_i915_private
*dev_priv
= to_i915(state
->dev
);
10240 struct drm_crtc
*crtc
;
10241 struct drm_crtc_state
*cstate
;
10242 struct intel_crtc_state
*crtc_state
;
10243 unsigned max_pixel_rate
= 0, i
;
10246 memcpy(intel_state
->min_pixclk
, dev_priv
->min_pixclk
,
10247 sizeof(intel_state
->min_pixclk
));
10249 for_each_crtc_in_state(state
, crtc
, cstate
, i
) {
10252 crtc_state
= to_intel_crtc_state(cstate
);
10253 if (!crtc_state
->base
.enable
) {
10254 intel_state
->min_pixclk
[i
] = 0;
10258 pixel_rate
= ilk_pipe_pixel_rate(crtc_state
);
10260 if (IS_BROADWELL(dev_priv
) || IS_GEN9(dev_priv
))
10261 pixel_rate
= bdw_adjust_min_pipe_pixel_rate(crtc_state
,
10264 intel_state
->min_pixclk
[i
] = pixel_rate
;
10267 for_each_pipe(dev_priv
, pipe
)
10268 max_pixel_rate
= max(intel_state
->min_pixclk
[pipe
], max_pixel_rate
);
10270 return max_pixel_rate
;
10273 static void broadwell_set_cdclk(struct drm_device
*dev
, int cdclk
)
10275 struct drm_i915_private
*dev_priv
= to_i915(dev
);
10276 uint32_t val
, data
;
10279 if (WARN((I915_READ(LCPLL_CTL
) &
10280 (LCPLL_PLL_DISABLE
| LCPLL_PLL_LOCK
|
10281 LCPLL_CD_CLOCK_DISABLE
| LCPLL_ROOT_CD_CLOCK_DISABLE
|
10282 LCPLL_CD2X_CLOCK_DISABLE
| LCPLL_POWER_DOWN_ALLOW
|
10283 LCPLL_CD_SOURCE_FCLK
)) != LCPLL_PLL_LOCK
,
10284 "trying to change cdclk frequency with cdclk not enabled\n"))
10287 mutex_lock(&dev_priv
->rps
.hw_lock
);
10288 ret
= sandybridge_pcode_write(dev_priv
,
10289 BDW_PCODE_DISPLAY_FREQ_CHANGE_REQ
, 0x0);
10290 mutex_unlock(&dev_priv
->rps
.hw_lock
);
10292 DRM_ERROR("failed to inform pcode about cdclk change\n");
10296 val
= I915_READ(LCPLL_CTL
);
10297 val
|= LCPLL_CD_SOURCE_FCLK
;
10298 I915_WRITE(LCPLL_CTL
, val
);
10300 if (wait_for_us(I915_READ(LCPLL_CTL
) &
10301 LCPLL_CD_SOURCE_FCLK_DONE
, 1))
10302 DRM_ERROR("Switching to FCLK failed\n");
10304 val
= I915_READ(LCPLL_CTL
);
10305 val
&= ~LCPLL_CLK_FREQ_MASK
;
10309 val
|= LCPLL_CLK_FREQ_450
;
10313 val
|= LCPLL_CLK_FREQ_54O_BDW
;
10317 val
|= LCPLL_CLK_FREQ_337_5_BDW
;
10321 val
|= LCPLL_CLK_FREQ_675_BDW
;
10325 WARN(1, "invalid cdclk frequency\n");
10329 I915_WRITE(LCPLL_CTL
, val
);
10331 val
= I915_READ(LCPLL_CTL
);
10332 val
&= ~LCPLL_CD_SOURCE_FCLK
;
10333 I915_WRITE(LCPLL_CTL
, val
);
10335 if (wait_for_us((I915_READ(LCPLL_CTL
) &
10336 LCPLL_CD_SOURCE_FCLK_DONE
) == 0, 1))
10337 DRM_ERROR("Switching back to LCPLL failed\n");
10339 mutex_lock(&dev_priv
->rps
.hw_lock
);
10340 sandybridge_pcode_write(dev_priv
, HSW_PCODE_DE_WRITE_FREQ_REQ
, data
);
10341 mutex_unlock(&dev_priv
->rps
.hw_lock
);
10343 I915_WRITE(CDCLK_FREQ
, DIV_ROUND_CLOSEST(cdclk
, 1000) - 1);
10345 intel_update_cdclk(dev_priv
);
10347 WARN(cdclk
!= dev_priv
->cdclk_freq
,
10348 "cdclk requested %d kHz but got %d kHz\n",
10349 cdclk
, dev_priv
->cdclk_freq
);
10352 static int broadwell_calc_cdclk(int max_pixclk
)
10354 if (max_pixclk
> 540000)
10356 else if (max_pixclk
> 450000)
10358 else if (max_pixclk
> 337500)
10364 static int broadwell_modeset_calc_cdclk(struct drm_atomic_state
*state
)
10366 struct drm_i915_private
*dev_priv
= to_i915(state
->dev
);
10367 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
10368 int max_pixclk
= ilk_max_pixel_rate(state
);
10372 * FIXME should also account for plane ratio
10373 * once 64bpp pixel formats are supported.
10375 cdclk
= broadwell_calc_cdclk(max_pixclk
);
10377 if (cdclk
> dev_priv
->max_cdclk_freq
) {
10378 DRM_DEBUG_KMS("requested cdclk (%d kHz) exceeds max (%d kHz)\n",
10379 cdclk
, dev_priv
->max_cdclk_freq
);
10383 intel_state
->cdclk
= intel_state
->dev_cdclk
= cdclk
;
10384 if (!intel_state
->active_crtcs
)
10385 intel_state
->dev_cdclk
= broadwell_calc_cdclk(0);
10390 static void broadwell_modeset_commit_cdclk(struct drm_atomic_state
*old_state
)
10392 struct drm_device
*dev
= old_state
->dev
;
10393 struct intel_atomic_state
*old_intel_state
=
10394 to_intel_atomic_state(old_state
);
10395 unsigned req_cdclk
= old_intel_state
->dev_cdclk
;
10397 broadwell_set_cdclk(dev
, req_cdclk
);
10400 static int skl_modeset_calc_cdclk(struct drm_atomic_state
*state
)
10402 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
10403 struct drm_i915_private
*dev_priv
= to_i915(state
->dev
);
10404 const int max_pixclk
= ilk_max_pixel_rate(state
);
10405 int vco
= intel_state
->cdclk_pll_vco
;
10409 * FIXME should also account for plane ratio
10410 * once 64bpp pixel formats are supported.
10412 cdclk
= skl_calc_cdclk(max_pixclk
, vco
);
10415 * FIXME move the cdclk caclulation to
10416 * compute_config() so we can fail gracegully.
10418 if (cdclk
> dev_priv
->max_cdclk_freq
) {
10419 DRM_ERROR("requested cdclk (%d kHz) exceeds max (%d kHz)\n",
10420 cdclk
, dev_priv
->max_cdclk_freq
);
10421 cdclk
= dev_priv
->max_cdclk_freq
;
10424 intel_state
->cdclk
= intel_state
->dev_cdclk
= cdclk
;
10425 if (!intel_state
->active_crtcs
)
10426 intel_state
->dev_cdclk
= skl_calc_cdclk(0, vco
);
10431 static void skl_modeset_commit_cdclk(struct drm_atomic_state
*old_state
)
10433 struct drm_i915_private
*dev_priv
= to_i915(old_state
->dev
);
10434 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(old_state
);
10435 unsigned int req_cdclk
= intel_state
->dev_cdclk
;
10436 unsigned int req_vco
= intel_state
->cdclk_pll_vco
;
10438 skl_set_cdclk(dev_priv
, req_cdclk
, req_vco
);
10441 static int haswell_crtc_compute_clock(struct intel_crtc
*crtc
,
10442 struct intel_crtc_state
*crtc_state
)
10444 if (!intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_DSI
)) {
10445 if (!intel_ddi_pll_select(crtc
, crtc_state
))
10449 crtc
->lowfreq_avail
= false;
10454 static void bxt_get_ddi_pll(struct drm_i915_private
*dev_priv
,
10456 struct intel_crtc_state
*pipe_config
)
10458 enum intel_dpll_id id
;
10462 id
= DPLL_ID_SKL_DPLL0
;
10465 id
= DPLL_ID_SKL_DPLL1
;
10468 id
= DPLL_ID_SKL_DPLL2
;
10471 DRM_ERROR("Incorrect port type\n");
10475 pipe_config
->shared_dpll
= intel_get_shared_dpll_by_id(dev_priv
, id
);
10478 static void skylake_get_ddi_pll(struct drm_i915_private
*dev_priv
,
10480 struct intel_crtc_state
*pipe_config
)
10482 enum intel_dpll_id id
;
10485 temp
= I915_READ(DPLL_CTRL2
) & DPLL_CTRL2_DDI_CLK_SEL_MASK(port
);
10486 id
= temp
>> (port
* 3 + 1);
10488 if (WARN_ON(id
< SKL_DPLL0
|| id
> SKL_DPLL3
))
10491 pipe_config
->shared_dpll
= intel_get_shared_dpll_by_id(dev_priv
, id
);
10494 static void haswell_get_ddi_pll(struct drm_i915_private
*dev_priv
,
10496 struct intel_crtc_state
*pipe_config
)
10498 enum intel_dpll_id id
;
10499 uint32_t ddi_pll_sel
= I915_READ(PORT_CLK_SEL(port
));
10501 switch (ddi_pll_sel
) {
10502 case PORT_CLK_SEL_WRPLL1
:
10503 id
= DPLL_ID_WRPLL1
;
10505 case PORT_CLK_SEL_WRPLL2
:
10506 id
= DPLL_ID_WRPLL2
;
10508 case PORT_CLK_SEL_SPLL
:
10511 case PORT_CLK_SEL_LCPLL_810
:
10512 id
= DPLL_ID_LCPLL_810
;
10514 case PORT_CLK_SEL_LCPLL_1350
:
10515 id
= DPLL_ID_LCPLL_1350
;
10517 case PORT_CLK_SEL_LCPLL_2700
:
10518 id
= DPLL_ID_LCPLL_2700
;
10521 MISSING_CASE(ddi_pll_sel
);
10523 case PORT_CLK_SEL_NONE
:
10527 pipe_config
->shared_dpll
= intel_get_shared_dpll_by_id(dev_priv
, id
);
10530 static bool hsw_get_transcoder_state(struct intel_crtc
*crtc
,
10531 struct intel_crtc_state
*pipe_config
,
10532 unsigned long *power_domain_mask
)
10534 struct drm_device
*dev
= crtc
->base
.dev
;
10535 struct drm_i915_private
*dev_priv
= to_i915(dev
);
10536 enum intel_display_power_domain power_domain
;
10540 * The pipe->transcoder mapping is fixed with the exception of the eDP
10541 * transcoder handled below.
10543 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
10546 * XXX: Do intel_display_power_get_if_enabled before reading this (for
10547 * consistency and less surprising code; it's in always on power).
10549 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP
));
10550 if (tmp
& TRANS_DDI_FUNC_ENABLE
) {
10551 enum pipe trans_edp_pipe
;
10552 switch (tmp
& TRANS_DDI_EDP_INPUT_MASK
) {
10554 WARN(1, "unknown pipe linked to edp transcoder\n");
10555 case TRANS_DDI_EDP_INPUT_A_ONOFF
:
10556 case TRANS_DDI_EDP_INPUT_A_ON
:
10557 trans_edp_pipe
= PIPE_A
;
10559 case TRANS_DDI_EDP_INPUT_B_ONOFF
:
10560 trans_edp_pipe
= PIPE_B
;
10562 case TRANS_DDI_EDP_INPUT_C_ONOFF
:
10563 trans_edp_pipe
= PIPE_C
;
10567 if (trans_edp_pipe
== crtc
->pipe
)
10568 pipe_config
->cpu_transcoder
= TRANSCODER_EDP
;
10571 power_domain
= POWER_DOMAIN_TRANSCODER(pipe_config
->cpu_transcoder
);
10572 if (!intel_display_power_get_if_enabled(dev_priv
, power_domain
))
10574 *power_domain_mask
|= BIT(power_domain
);
10576 tmp
= I915_READ(PIPECONF(pipe_config
->cpu_transcoder
));
10578 return tmp
& PIPECONF_ENABLE
;
10581 static bool bxt_get_dsi_transcoder_state(struct intel_crtc
*crtc
,
10582 struct intel_crtc_state
*pipe_config
,
10583 unsigned long *power_domain_mask
)
10585 struct drm_device
*dev
= crtc
->base
.dev
;
10586 struct drm_i915_private
*dev_priv
= to_i915(dev
);
10587 enum intel_display_power_domain power_domain
;
10589 enum transcoder cpu_transcoder
;
10592 for_each_port_masked(port
, BIT(PORT_A
) | BIT(PORT_C
)) {
10593 if (port
== PORT_A
)
10594 cpu_transcoder
= TRANSCODER_DSI_A
;
10596 cpu_transcoder
= TRANSCODER_DSI_C
;
10598 power_domain
= POWER_DOMAIN_TRANSCODER(cpu_transcoder
);
10599 if (!intel_display_power_get_if_enabled(dev_priv
, power_domain
))
10601 *power_domain_mask
|= BIT(power_domain
);
10604 * The PLL needs to be enabled with a valid divider
10605 * configuration, otherwise accessing DSI registers will hang
10606 * the machine. See BSpec North Display Engine
10607 * registers/MIPI[BXT]. We can break out here early, since we
10608 * need the same DSI PLL to be enabled for both DSI ports.
10610 if (!intel_dsi_pll_is_enabled(dev_priv
))
10613 /* XXX: this works for video mode only */
10614 tmp
= I915_READ(BXT_MIPI_PORT_CTRL(port
));
10615 if (!(tmp
& DPI_ENABLE
))
10618 tmp
= I915_READ(MIPI_CTRL(port
));
10619 if ((tmp
& BXT_PIPE_SELECT_MASK
) != BXT_PIPE_SELECT(crtc
->pipe
))
10622 pipe_config
->cpu_transcoder
= cpu_transcoder
;
10626 return transcoder_is_dsi(pipe_config
->cpu_transcoder
);
10629 static void haswell_get_ddi_port_state(struct intel_crtc
*crtc
,
10630 struct intel_crtc_state
*pipe_config
)
10632 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
10633 struct intel_shared_dpll
*pll
;
10637 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(pipe_config
->cpu_transcoder
));
10639 port
= (tmp
& TRANS_DDI_PORT_MASK
) >> TRANS_DDI_PORT_SHIFT
;
10641 if (IS_SKYLAKE(dev_priv
) || IS_KABYLAKE(dev_priv
))
10642 skylake_get_ddi_pll(dev_priv
, port
, pipe_config
);
10643 else if (IS_BROXTON(dev_priv
))
10644 bxt_get_ddi_pll(dev_priv
, port
, pipe_config
);
10646 haswell_get_ddi_pll(dev_priv
, port
, pipe_config
);
10648 pll
= pipe_config
->shared_dpll
;
10650 WARN_ON(!pll
->funcs
.get_hw_state(dev_priv
, pll
,
10651 &pipe_config
->dpll_hw_state
));
10655 * Haswell has only FDI/PCH transcoder A. It is which is connected to
10656 * DDI E. So just check whether this pipe is wired to DDI E and whether
10657 * the PCH transcoder is on.
10659 if (INTEL_GEN(dev_priv
) < 9 &&
10660 (port
== PORT_E
) && I915_READ(LPT_TRANSCONF
) & TRANS_ENABLE
) {
10661 pipe_config
->has_pch_encoder
= true;
10663 tmp
= I915_READ(FDI_RX_CTL(PIPE_A
));
10664 pipe_config
->fdi_lanes
= ((FDI_DP_PORT_WIDTH_MASK
& tmp
) >>
10665 FDI_DP_PORT_WIDTH_SHIFT
) + 1;
10667 ironlake_get_fdi_m_n_config(crtc
, pipe_config
);
10671 static bool haswell_get_pipe_config(struct intel_crtc
*crtc
,
10672 struct intel_crtc_state
*pipe_config
)
10674 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
10675 enum intel_display_power_domain power_domain
;
10676 unsigned long power_domain_mask
;
10679 power_domain
= POWER_DOMAIN_PIPE(crtc
->pipe
);
10680 if (!intel_display_power_get_if_enabled(dev_priv
, power_domain
))
10682 power_domain_mask
= BIT(power_domain
);
10684 pipe_config
->shared_dpll
= NULL
;
10686 active
= hsw_get_transcoder_state(crtc
, pipe_config
, &power_domain_mask
);
10688 if (IS_BROXTON(dev_priv
) &&
10689 bxt_get_dsi_transcoder_state(crtc
, pipe_config
, &power_domain_mask
)) {
10697 if (!transcoder_is_dsi(pipe_config
->cpu_transcoder
)) {
10698 haswell_get_ddi_port_state(crtc
, pipe_config
);
10699 intel_get_pipe_timings(crtc
, pipe_config
);
10702 intel_get_pipe_src_size(crtc
, pipe_config
);
10704 pipe_config
->gamma_mode
=
10705 I915_READ(GAMMA_MODE(crtc
->pipe
)) & GAMMA_MODE_MODE_MASK
;
10707 if (INTEL_GEN(dev_priv
) >= 9) {
10708 skl_init_scalers(dev_priv
, crtc
, pipe_config
);
10710 pipe_config
->scaler_state
.scaler_id
= -1;
10711 pipe_config
->scaler_state
.scaler_users
&= ~(1 << SKL_CRTC_INDEX
);
10714 power_domain
= POWER_DOMAIN_PIPE_PANEL_FITTER(crtc
->pipe
);
10715 if (intel_display_power_get_if_enabled(dev_priv
, power_domain
)) {
10716 power_domain_mask
|= BIT(power_domain
);
10717 if (INTEL_GEN(dev_priv
) >= 9)
10718 skylake_get_pfit_config(crtc
, pipe_config
);
10720 ironlake_get_pfit_config(crtc
, pipe_config
);
10723 if (IS_HASWELL(dev_priv
))
10724 pipe_config
->ips_enabled
= hsw_crtc_supports_ips(crtc
) &&
10725 (I915_READ(IPS_CTL
) & IPS_ENABLE
);
10727 if (pipe_config
->cpu_transcoder
!= TRANSCODER_EDP
&&
10728 !transcoder_is_dsi(pipe_config
->cpu_transcoder
)) {
10729 pipe_config
->pixel_multiplier
=
10730 I915_READ(PIPE_MULT(pipe_config
->cpu_transcoder
)) + 1;
10732 pipe_config
->pixel_multiplier
= 1;
10736 for_each_power_domain(power_domain
, power_domain_mask
)
10737 intel_display_power_put(dev_priv
, power_domain
);
10742 static void i845_update_cursor(struct drm_crtc
*crtc
, u32 base
,
10743 const struct intel_plane_state
*plane_state
)
10745 struct drm_device
*dev
= crtc
->dev
;
10746 struct drm_i915_private
*dev_priv
= to_i915(dev
);
10747 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10748 uint32_t cntl
= 0, size
= 0;
10750 if (plane_state
&& plane_state
->base
.visible
) {
10751 unsigned int width
= plane_state
->base
.crtc_w
;
10752 unsigned int height
= plane_state
->base
.crtc_h
;
10753 unsigned int stride
= roundup_pow_of_two(width
) * 4;
10757 WARN_ONCE(1, "Invalid cursor width/stride, width=%u, stride=%u\n",
10768 cntl
|= CURSOR_ENABLE
|
10769 CURSOR_GAMMA_ENABLE
|
10770 CURSOR_FORMAT_ARGB
|
10771 CURSOR_STRIDE(stride
);
10773 size
= (height
<< 12) | width
;
10776 if (intel_crtc
->cursor_cntl
!= 0 &&
10777 (intel_crtc
->cursor_base
!= base
||
10778 intel_crtc
->cursor_size
!= size
||
10779 intel_crtc
->cursor_cntl
!= cntl
)) {
10780 /* On these chipsets we can only modify the base/size/stride
10781 * whilst the cursor is disabled.
10783 I915_WRITE(CURCNTR(PIPE_A
), 0);
10784 POSTING_READ(CURCNTR(PIPE_A
));
10785 intel_crtc
->cursor_cntl
= 0;
10788 if (intel_crtc
->cursor_base
!= base
) {
10789 I915_WRITE(CURBASE(PIPE_A
), base
);
10790 intel_crtc
->cursor_base
= base
;
10793 if (intel_crtc
->cursor_size
!= size
) {
10794 I915_WRITE(CURSIZE
, size
);
10795 intel_crtc
->cursor_size
= size
;
10798 if (intel_crtc
->cursor_cntl
!= cntl
) {
10799 I915_WRITE(CURCNTR(PIPE_A
), cntl
);
10800 POSTING_READ(CURCNTR(PIPE_A
));
10801 intel_crtc
->cursor_cntl
= cntl
;
10805 static void i9xx_update_cursor(struct drm_crtc
*crtc
, u32 base
,
10806 const struct intel_plane_state
*plane_state
)
10808 struct drm_device
*dev
= crtc
->dev
;
10809 struct drm_i915_private
*dev_priv
= to_i915(dev
);
10810 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10811 int pipe
= intel_crtc
->pipe
;
10814 if (plane_state
&& plane_state
->base
.visible
) {
10815 cntl
= MCURSOR_GAMMA_ENABLE
;
10816 switch (plane_state
->base
.crtc_w
) {
10818 cntl
|= CURSOR_MODE_64_ARGB_AX
;
10821 cntl
|= CURSOR_MODE_128_ARGB_AX
;
10824 cntl
|= CURSOR_MODE_256_ARGB_AX
;
10827 MISSING_CASE(plane_state
->base
.crtc_w
);
10830 cntl
|= pipe
<< 28; /* Connect to correct pipe */
10832 if (HAS_DDI(dev_priv
))
10833 cntl
|= CURSOR_PIPE_CSC_ENABLE
;
10835 if (plane_state
->base
.rotation
& DRM_ROTATE_180
)
10836 cntl
|= CURSOR_ROTATE_180
;
10839 if (intel_crtc
->cursor_cntl
!= cntl
) {
10840 I915_WRITE(CURCNTR(pipe
), cntl
);
10841 POSTING_READ(CURCNTR(pipe
));
10842 intel_crtc
->cursor_cntl
= cntl
;
10845 /* and commit changes on next vblank */
10846 I915_WRITE(CURBASE(pipe
), base
);
10847 POSTING_READ(CURBASE(pipe
));
10849 intel_crtc
->cursor_base
= base
;
10852 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
10853 static void intel_crtc_update_cursor(struct drm_crtc
*crtc
,
10854 const struct intel_plane_state
*plane_state
)
10856 struct drm_device
*dev
= crtc
->dev
;
10857 struct drm_i915_private
*dev_priv
= to_i915(dev
);
10858 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10859 int pipe
= intel_crtc
->pipe
;
10860 u32 base
= intel_crtc
->cursor_addr
;
10864 int x
= plane_state
->base
.crtc_x
;
10865 int y
= plane_state
->base
.crtc_y
;
10868 pos
|= CURSOR_POS_SIGN
<< CURSOR_X_SHIFT
;
10871 pos
|= x
<< CURSOR_X_SHIFT
;
10874 pos
|= CURSOR_POS_SIGN
<< CURSOR_Y_SHIFT
;
10877 pos
|= y
<< CURSOR_Y_SHIFT
;
10879 /* ILK+ do this automagically */
10880 if (HAS_GMCH_DISPLAY(dev_priv
) &&
10881 plane_state
->base
.rotation
& DRM_ROTATE_180
) {
10882 base
+= (plane_state
->base
.crtc_h
*
10883 plane_state
->base
.crtc_w
- 1) * 4;
10887 I915_WRITE(CURPOS(pipe
), pos
);
10889 if (IS_845G(dev_priv
) || IS_I865G(dev_priv
))
10890 i845_update_cursor(crtc
, base
, plane_state
);
10892 i9xx_update_cursor(crtc
, base
, plane_state
);
10895 static bool cursor_size_ok(struct drm_i915_private
*dev_priv
,
10896 uint32_t width
, uint32_t height
)
10898 if (width
== 0 || height
== 0)
10902 * 845g/865g are special in that they are only limited by
10903 * the width of their cursors, the height is arbitrary up to
10904 * the precision of the register. Everything else requires
10905 * square cursors, limited to a few power-of-two sizes.
10907 if (IS_845G(dev_priv
) || IS_I865G(dev_priv
)) {
10908 if ((width
& 63) != 0)
10911 if (width
> (IS_845G(dev_priv
) ? 64 : 512))
10917 switch (width
| height
) {
10920 if (IS_GEN2(dev_priv
))
10932 /* VESA 640x480x72Hz mode to set on the pipe */
10933 static struct drm_display_mode load_detect_mode
= {
10934 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT
, 31500, 640, 664,
10935 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
10938 struct drm_framebuffer
*
10939 __intel_framebuffer_create(struct drm_device
*dev
,
10940 struct drm_mode_fb_cmd2
*mode_cmd
,
10941 struct drm_i915_gem_object
*obj
)
10943 struct intel_framebuffer
*intel_fb
;
10946 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
10948 return ERR_PTR(-ENOMEM
);
10950 ret
= intel_framebuffer_init(dev
, intel_fb
, mode_cmd
, obj
);
10954 return &intel_fb
->base
;
10958 return ERR_PTR(ret
);
10961 static struct drm_framebuffer
*
10962 intel_framebuffer_create(struct drm_device
*dev
,
10963 struct drm_mode_fb_cmd2
*mode_cmd
,
10964 struct drm_i915_gem_object
*obj
)
10966 struct drm_framebuffer
*fb
;
10969 ret
= i915_mutex_lock_interruptible(dev
);
10971 return ERR_PTR(ret
);
10972 fb
= __intel_framebuffer_create(dev
, mode_cmd
, obj
);
10973 mutex_unlock(&dev
->struct_mutex
);
10979 intel_framebuffer_pitch_for_width(int width
, int bpp
)
10981 u32 pitch
= DIV_ROUND_UP(width
* bpp
, 8);
10982 return ALIGN(pitch
, 64);
10986 intel_framebuffer_size_for_mode(struct drm_display_mode
*mode
, int bpp
)
10988 u32 pitch
= intel_framebuffer_pitch_for_width(mode
->hdisplay
, bpp
);
10989 return PAGE_ALIGN(pitch
* mode
->vdisplay
);
10992 static struct drm_framebuffer
*
10993 intel_framebuffer_create_for_mode(struct drm_device
*dev
,
10994 struct drm_display_mode
*mode
,
10995 int depth
, int bpp
)
10997 struct drm_framebuffer
*fb
;
10998 struct drm_i915_gem_object
*obj
;
10999 struct drm_mode_fb_cmd2 mode_cmd
= { 0 };
11001 obj
= i915_gem_object_create(to_i915(dev
),
11002 intel_framebuffer_size_for_mode(mode
, bpp
));
11004 return ERR_CAST(obj
);
11006 mode_cmd
.width
= mode
->hdisplay
;
11007 mode_cmd
.height
= mode
->vdisplay
;
11008 mode_cmd
.pitches
[0] = intel_framebuffer_pitch_for_width(mode_cmd
.width
,
11010 mode_cmd
.pixel_format
= drm_mode_legacy_fb_format(bpp
, depth
);
11012 fb
= intel_framebuffer_create(dev
, &mode_cmd
, obj
);
11014 i915_gem_object_put(obj
);
11019 static struct drm_framebuffer
*
11020 mode_fits_in_fbdev(struct drm_device
*dev
,
11021 struct drm_display_mode
*mode
)
11023 #ifdef CONFIG_DRM_FBDEV_EMULATION
11024 struct drm_i915_private
*dev_priv
= to_i915(dev
);
11025 struct drm_i915_gem_object
*obj
;
11026 struct drm_framebuffer
*fb
;
11028 if (!dev_priv
->fbdev
)
11031 if (!dev_priv
->fbdev
->fb
)
11034 obj
= dev_priv
->fbdev
->fb
->obj
;
11037 fb
= &dev_priv
->fbdev
->fb
->base
;
11038 if (fb
->pitches
[0] < intel_framebuffer_pitch_for_width(mode
->hdisplay
,
11039 fb
->bits_per_pixel
))
11042 if (obj
->base
.size
< mode
->vdisplay
* fb
->pitches
[0])
11045 drm_framebuffer_reference(fb
);
11052 static int intel_modeset_setup_plane_state(struct drm_atomic_state
*state
,
11053 struct drm_crtc
*crtc
,
11054 struct drm_display_mode
*mode
,
11055 struct drm_framebuffer
*fb
,
11058 struct drm_plane_state
*plane_state
;
11059 int hdisplay
, vdisplay
;
11062 plane_state
= drm_atomic_get_plane_state(state
, crtc
->primary
);
11063 if (IS_ERR(plane_state
))
11064 return PTR_ERR(plane_state
);
11067 drm_crtc_get_hv_timing(mode
, &hdisplay
, &vdisplay
);
11069 hdisplay
= vdisplay
= 0;
11071 ret
= drm_atomic_set_crtc_for_plane(plane_state
, fb
? crtc
: NULL
);
11074 drm_atomic_set_fb_for_plane(plane_state
, fb
);
11075 plane_state
->crtc_x
= 0;
11076 plane_state
->crtc_y
= 0;
11077 plane_state
->crtc_w
= hdisplay
;
11078 plane_state
->crtc_h
= vdisplay
;
11079 plane_state
->src_x
= x
<< 16;
11080 plane_state
->src_y
= y
<< 16;
11081 plane_state
->src_w
= hdisplay
<< 16;
11082 plane_state
->src_h
= vdisplay
<< 16;
11087 bool intel_get_load_detect_pipe(struct drm_connector
*connector
,
11088 struct drm_display_mode
*mode
,
11089 struct intel_load_detect_pipe
*old
,
11090 struct drm_modeset_acquire_ctx
*ctx
)
11092 struct intel_crtc
*intel_crtc
;
11093 struct intel_encoder
*intel_encoder
=
11094 intel_attached_encoder(connector
);
11095 struct drm_crtc
*possible_crtc
;
11096 struct drm_encoder
*encoder
= &intel_encoder
->base
;
11097 struct drm_crtc
*crtc
= NULL
;
11098 struct drm_device
*dev
= encoder
->dev
;
11099 struct drm_i915_private
*dev_priv
= to_i915(dev
);
11100 struct drm_framebuffer
*fb
;
11101 struct drm_mode_config
*config
= &dev
->mode_config
;
11102 struct drm_atomic_state
*state
= NULL
, *restore_state
= NULL
;
11103 struct drm_connector_state
*connector_state
;
11104 struct intel_crtc_state
*crtc_state
;
11107 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
11108 connector
->base
.id
, connector
->name
,
11109 encoder
->base
.id
, encoder
->name
);
11111 old
->restore_state
= NULL
;
11114 ret
= drm_modeset_lock(&config
->connection_mutex
, ctx
);
11119 * Algorithm gets a little messy:
11121 * - if the connector already has an assigned crtc, use it (but make
11122 * sure it's on first)
11124 * - try to find the first unused crtc that can drive this connector,
11125 * and use that if we find one
11128 /* See if we already have a CRTC for this connector */
11129 if (connector
->state
->crtc
) {
11130 crtc
= connector
->state
->crtc
;
11132 ret
= drm_modeset_lock(&crtc
->mutex
, ctx
);
11136 /* Make sure the crtc and connector are running */
11140 /* Find an unused one (if possible) */
11141 for_each_crtc(dev
, possible_crtc
) {
11143 if (!(encoder
->possible_crtcs
& (1 << i
)))
11146 ret
= drm_modeset_lock(&possible_crtc
->mutex
, ctx
);
11150 if (possible_crtc
->state
->enable
) {
11151 drm_modeset_unlock(&possible_crtc
->mutex
);
11155 crtc
= possible_crtc
;
11160 * If we didn't find an unused CRTC, don't use any.
11163 DRM_DEBUG_KMS("no pipe available for load-detect\n");
11168 intel_crtc
= to_intel_crtc(crtc
);
11170 ret
= drm_modeset_lock(&crtc
->primary
->mutex
, ctx
);
11174 state
= drm_atomic_state_alloc(dev
);
11175 restore_state
= drm_atomic_state_alloc(dev
);
11176 if (!state
|| !restore_state
) {
11181 state
->acquire_ctx
= ctx
;
11182 restore_state
->acquire_ctx
= ctx
;
11184 connector_state
= drm_atomic_get_connector_state(state
, connector
);
11185 if (IS_ERR(connector_state
)) {
11186 ret
= PTR_ERR(connector_state
);
11190 ret
= drm_atomic_set_crtc_for_connector(connector_state
, crtc
);
11194 crtc_state
= intel_atomic_get_crtc_state(state
, intel_crtc
);
11195 if (IS_ERR(crtc_state
)) {
11196 ret
= PTR_ERR(crtc_state
);
11200 crtc_state
->base
.active
= crtc_state
->base
.enable
= true;
11203 mode
= &load_detect_mode
;
11205 /* We need a framebuffer large enough to accommodate all accesses
11206 * that the plane may generate whilst we perform load detection.
11207 * We can not rely on the fbcon either being present (we get called
11208 * during its initialisation to detect all boot displays, or it may
11209 * not even exist) or that it is large enough to satisfy the
11212 fb
= mode_fits_in_fbdev(dev
, mode
);
11214 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
11215 fb
= intel_framebuffer_create_for_mode(dev
, mode
, 24, 32);
11217 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
11219 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
11223 ret
= intel_modeset_setup_plane_state(state
, crtc
, mode
, fb
, 0, 0);
11227 drm_framebuffer_unreference(fb
);
11229 ret
= drm_atomic_set_mode_for_crtc(&crtc_state
->base
, mode
);
11233 ret
= PTR_ERR_OR_ZERO(drm_atomic_get_connector_state(restore_state
, connector
));
11235 ret
= PTR_ERR_OR_ZERO(drm_atomic_get_crtc_state(restore_state
, crtc
));
11237 ret
= PTR_ERR_OR_ZERO(drm_atomic_get_plane_state(restore_state
, crtc
->primary
));
11239 DRM_DEBUG_KMS("Failed to create a copy of old state to restore: %i\n", ret
);
11243 ret
= drm_atomic_commit(state
);
11245 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
11249 old
->restore_state
= restore_state
;
11251 /* let the connector get through one full cycle before testing */
11252 intel_wait_for_vblank(dev_priv
, intel_crtc
->pipe
);
11257 drm_atomic_state_put(state
);
11260 if (restore_state
) {
11261 drm_atomic_state_put(restore_state
);
11262 restore_state
= NULL
;
11265 if (ret
== -EDEADLK
) {
11266 drm_modeset_backoff(ctx
);
11273 void intel_release_load_detect_pipe(struct drm_connector
*connector
,
11274 struct intel_load_detect_pipe
*old
,
11275 struct drm_modeset_acquire_ctx
*ctx
)
11277 struct intel_encoder
*intel_encoder
=
11278 intel_attached_encoder(connector
);
11279 struct drm_encoder
*encoder
= &intel_encoder
->base
;
11280 struct drm_atomic_state
*state
= old
->restore_state
;
11283 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
11284 connector
->base
.id
, connector
->name
,
11285 encoder
->base
.id
, encoder
->name
);
11290 ret
= drm_atomic_commit(state
);
11292 DRM_DEBUG_KMS("Couldn't release load detect pipe: %i\n", ret
);
11293 drm_atomic_state_put(state
);
11296 static int i9xx_pll_refclk(struct drm_device
*dev
,
11297 const struct intel_crtc_state
*pipe_config
)
11299 struct drm_i915_private
*dev_priv
= to_i915(dev
);
11300 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
11302 if ((dpll
& PLL_REF_INPUT_MASK
) == PLLB_REF_INPUT_SPREADSPECTRUMIN
)
11303 return dev_priv
->vbt
.lvds_ssc_freq
;
11304 else if (HAS_PCH_SPLIT(dev_priv
))
11306 else if (!IS_GEN2(dev_priv
))
11312 /* Returns the clock of the currently programmed mode of the given pipe. */
11313 static void i9xx_crtc_clock_get(struct intel_crtc
*crtc
,
11314 struct intel_crtc_state
*pipe_config
)
11316 struct drm_device
*dev
= crtc
->base
.dev
;
11317 struct drm_i915_private
*dev_priv
= to_i915(dev
);
11318 int pipe
= pipe_config
->cpu_transcoder
;
11319 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
11323 int refclk
= i9xx_pll_refclk(dev
, pipe_config
);
11325 if ((dpll
& DISPLAY_RATE_SELECT_FPA1
) == 0)
11326 fp
= pipe_config
->dpll_hw_state
.fp0
;
11328 fp
= pipe_config
->dpll_hw_state
.fp1
;
11330 clock
.m1
= (fp
& FP_M1_DIV_MASK
) >> FP_M1_DIV_SHIFT
;
11331 if (IS_PINEVIEW(dev_priv
)) {
11332 clock
.n
= ffs((fp
& FP_N_PINEVIEW_DIV_MASK
) >> FP_N_DIV_SHIFT
) - 1;
11333 clock
.m2
= (fp
& FP_M2_PINEVIEW_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
11335 clock
.n
= (fp
& FP_N_DIV_MASK
) >> FP_N_DIV_SHIFT
;
11336 clock
.m2
= (fp
& FP_M2_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
11339 if (!IS_GEN2(dev_priv
)) {
11340 if (IS_PINEVIEW(dev_priv
))
11341 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW
) >>
11342 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
);
11344 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK
) >>
11345 DPLL_FPA01_P1_POST_DIV_SHIFT
);
11347 switch (dpll
& DPLL_MODE_MASK
) {
11348 case DPLLB_MODE_DAC_SERIAL
:
11349 clock
.p2
= dpll
& DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
?
11352 case DPLLB_MODE_LVDS
:
11353 clock
.p2
= dpll
& DPLLB_LVDS_P2_CLOCK_DIV_7
?
11357 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
11358 "mode\n", (int)(dpll
& DPLL_MODE_MASK
));
11362 if (IS_PINEVIEW(dev_priv
))
11363 port_clock
= pnv_calc_dpll_params(refclk
, &clock
);
11365 port_clock
= i9xx_calc_dpll_params(refclk
, &clock
);
11367 u32 lvds
= IS_I830(dev_priv
) ? 0 : I915_READ(LVDS
);
11368 bool is_lvds
= (pipe
== 1) && (lvds
& LVDS_PORT_EN
);
11371 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS
) >>
11372 DPLL_FPA01_P1_POST_DIV_SHIFT
);
11374 if (lvds
& LVDS_CLKB_POWER_UP
)
11379 if (dpll
& PLL_P1_DIVIDE_BY_TWO
)
11382 clock
.p1
= ((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830
) >>
11383 DPLL_FPA01_P1_POST_DIV_SHIFT
) + 2;
11385 if (dpll
& PLL_P2_DIVIDE_BY_4
)
11391 port_clock
= i9xx_calc_dpll_params(refclk
, &clock
);
11395 * This value includes pixel_multiplier. We will use
11396 * port_clock to compute adjusted_mode.crtc_clock in the
11397 * encoder's get_config() function.
11399 pipe_config
->port_clock
= port_clock
;
11402 int intel_dotclock_calculate(int link_freq
,
11403 const struct intel_link_m_n
*m_n
)
11406 * The calculation for the data clock is:
11407 * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp
11408 * But we want to avoid losing precison if possible, so:
11409 * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp))
11411 * and the link clock is simpler:
11412 * link_clock = (m * link_clock) / n
11418 return div_u64((u64
)m_n
->link_m
* link_freq
, m_n
->link_n
);
11421 static void ironlake_pch_clock_get(struct intel_crtc
*crtc
,
11422 struct intel_crtc_state
*pipe_config
)
11424 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
11426 /* read out port_clock from the DPLL */
11427 i9xx_crtc_clock_get(crtc
, pipe_config
);
11430 * In case there is an active pipe without active ports,
11431 * we may need some idea for the dotclock anyway.
11432 * Calculate one based on the FDI configuration.
11434 pipe_config
->base
.adjusted_mode
.crtc_clock
=
11435 intel_dotclock_calculate(intel_fdi_link_freq(dev_priv
, pipe_config
),
11436 &pipe_config
->fdi_m_n
);
11439 /** Returns the currently programmed mode of the given pipe. */
11440 struct drm_display_mode
*intel_crtc_mode_get(struct drm_device
*dev
,
11441 struct drm_crtc
*crtc
)
11443 struct drm_i915_private
*dev_priv
= to_i915(dev
);
11444 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11445 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
11446 struct drm_display_mode
*mode
;
11447 struct intel_crtc_state
*pipe_config
;
11448 int htot
= I915_READ(HTOTAL(cpu_transcoder
));
11449 int hsync
= I915_READ(HSYNC(cpu_transcoder
));
11450 int vtot
= I915_READ(VTOTAL(cpu_transcoder
));
11451 int vsync
= I915_READ(VSYNC(cpu_transcoder
));
11452 enum pipe pipe
= intel_crtc
->pipe
;
11454 mode
= kzalloc(sizeof(*mode
), GFP_KERNEL
);
11458 pipe_config
= kzalloc(sizeof(*pipe_config
), GFP_KERNEL
);
11459 if (!pipe_config
) {
11465 * Construct a pipe_config sufficient for getting the clock info
11466 * back out of crtc_clock_get.
11468 * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need
11469 * to use a real value here instead.
11471 pipe_config
->cpu_transcoder
= (enum transcoder
) pipe
;
11472 pipe_config
->pixel_multiplier
= 1;
11473 pipe_config
->dpll_hw_state
.dpll
= I915_READ(DPLL(pipe
));
11474 pipe_config
->dpll_hw_state
.fp0
= I915_READ(FP0(pipe
));
11475 pipe_config
->dpll_hw_state
.fp1
= I915_READ(FP1(pipe
));
11476 i9xx_crtc_clock_get(intel_crtc
, pipe_config
);
11478 mode
->clock
= pipe_config
->port_clock
/ pipe_config
->pixel_multiplier
;
11479 mode
->hdisplay
= (htot
& 0xffff) + 1;
11480 mode
->htotal
= ((htot
& 0xffff0000) >> 16) + 1;
11481 mode
->hsync_start
= (hsync
& 0xffff) + 1;
11482 mode
->hsync_end
= ((hsync
& 0xffff0000) >> 16) + 1;
11483 mode
->vdisplay
= (vtot
& 0xffff) + 1;
11484 mode
->vtotal
= ((vtot
& 0xffff0000) >> 16) + 1;
11485 mode
->vsync_start
= (vsync
& 0xffff) + 1;
11486 mode
->vsync_end
= ((vsync
& 0xffff0000) >> 16) + 1;
11488 drm_mode_set_name(mode
);
11490 kfree(pipe_config
);
11495 static void intel_crtc_destroy(struct drm_crtc
*crtc
)
11497 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11498 struct drm_device
*dev
= crtc
->dev
;
11499 struct intel_flip_work
*work
;
11501 spin_lock_irq(&dev
->event_lock
);
11502 work
= intel_crtc
->flip_work
;
11503 intel_crtc
->flip_work
= NULL
;
11504 spin_unlock_irq(&dev
->event_lock
);
11507 cancel_work_sync(&work
->mmio_work
);
11508 cancel_work_sync(&work
->unpin_work
);
11512 drm_crtc_cleanup(crtc
);
11517 static void intel_unpin_work_fn(struct work_struct
*__work
)
11519 struct intel_flip_work
*work
=
11520 container_of(__work
, struct intel_flip_work
, unpin_work
);
11521 struct intel_crtc
*crtc
= to_intel_crtc(work
->crtc
);
11522 struct drm_device
*dev
= crtc
->base
.dev
;
11523 struct drm_plane
*primary
= crtc
->base
.primary
;
11525 if (is_mmio_work(work
))
11526 flush_work(&work
->mmio_work
);
11528 mutex_lock(&dev
->struct_mutex
);
11529 intel_unpin_fb_obj(work
->old_fb
, primary
->state
->rotation
);
11530 i915_gem_object_put(work
->pending_flip_obj
);
11531 mutex_unlock(&dev
->struct_mutex
);
11533 i915_gem_request_put(work
->flip_queued_req
);
11535 intel_frontbuffer_flip_complete(to_i915(dev
),
11536 to_intel_plane(primary
)->frontbuffer_bit
);
11537 intel_fbc_post_update(crtc
);
11538 drm_framebuffer_unreference(work
->old_fb
);
11540 BUG_ON(atomic_read(&crtc
->unpin_work_count
) == 0);
11541 atomic_dec(&crtc
->unpin_work_count
);
11546 /* Is 'a' after or equal to 'b'? */
11547 static bool g4x_flip_count_after_eq(u32 a
, u32 b
)
11549 return !((a
- b
) & 0x80000000);
11552 static bool __pageflip_finished_cs(struct intel_crtc
*crtc
,
11553 struct intel_flip_work
*work
)
11555 struct drm_device
*dev
= crtc
->base
.dev
;
11556 struct drm_i915_private
*dev_priv
= to_i915(dev
);
11558 if (abort_flip_on_reset(crtc
))
11562 * The relevant registers doen't exist on pre-ctg.
11563 * As the flip done interrupt doesn't trigger for mmio
11564 * flips on gmch platforms, a flip count check isn't
11565 * really needed there. But since ctg has the registers,
11566 * include it in the check anyway.
11568 if (INTEL_GEN(dev_priv
) < 5 && !IS_G4X(dev_priv
))
11572 * BDW signals flip done immediately if the plane
11573 * is disabled, even if the plane enable is already
11574 * armed to occur at the next vblank :(
11578 * A DSPSURFLIVE check isn't enough in case the mmio and CS flips
11579 * used the same base address. In that case the mmio flip might
11580 * have completed, but the CS hasn't even executed the flip yet.
11582 * A flip count check isn't enough as the CS might have updated
11583 * the base address just after start of vblank, but before we
11584 * managed to process the interrupt. This means we'd complete the
11585 * CS flip too soon.
11587 * Combining both checks should get us a good enough result. It may
11588 * still happen that the CS flip has been executed, but has not
11589 * yet actually completed. But in case the base address is the same
11590 * anyway, we don't really care.
11592 return (I915_READ(DSPSURFLIVE(crtc
->plane
)) & ~0xfff) ==
11593 crtc
->flip_work
->gtt_offset
&&
11594 g4x_flip_count_after_eq(I915_READ(PIPE_FLIPCOUNT_G4X(crtc
->pipe
)),
11595 crtc
->flip_work
->flip_count
);
11599 __pageflip_finished_mmio(struct intel_crtc
*crtc
,
11600 struct intel_flip_work
*work
)
11603 * MMIO work completes when vblank is different from
11604 * flip_queued_vblank.
11606 * Reset counter value doesn't matter, this is handled by
11607 * i915_wait_request finishing early, so no need to handle
11610 return intel_crtc_get_vblank_counter(crtc
) != work
->flip_queued_vblank
;
11614 static bool pageflip_finished(struct intel_crtc
*crtc
,
11615 struct intel_flip_work
*work
)
11617 if (!atomic_read(&work
->pending
))
11622 if (is_mmio_work(work
))
11623 return __pageflip_finished_mmio(crtc
, work
);
11625 return __pageflip_finished_cs(crtc
, work
);
11628 void intel_finish_page_flip_cs(struct drm_i915_private
*dev_priv
, int pipe
)
11630 struct drm_device
*dev
= &dev_priv
->drm
;
11631 struct intel_crtc
*crtc
= intel_get_crtc_for_pipe(dev_priv
, pipe
);
11632 struct intel_flip_work
*work
;
11633 unsigned long flags
;
11635 /* Ignore early vblank irqs */
11640 * This is called both by irq handlers and the reset code (to complete
11641 * lost pageflips) so needs the full irqsave spinlocks.
11643 spin_lock_irqsave(&dev
->event_lock
, flags
);
11644 work
= crtc
->flip_work
;
11646 if (work
!= NULL
&&
11647 !is_mmio_work(work
) &&
11648 pageflip_finished(crtc
, work
))
11649 page_flip_completed(crtc
);
11651 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
11654 void intel_finish_page_flip_mmio(struct drm_i915_private
*dev_priv
, int pipe
)
11656 struct drm_device
*dev
= &dev_priv
->drm
;
11657 struct intel_crtc
*crtc
= intel_get_crtc_for_pipe(dev_priv
, pipe
);
11658 struct intel_flip_work
*work
;
11659 unsigned long flags
;
11661 /* Ignore early vblank irqs */
11666 * This is called both by irq handlers and the reset code (to complete
11667 * lost pageflips) so needs the full irqsave spinlocks.
11669 spin_lock_irqsave(&dev
->event_lock
, flags
);
11670 work
= crtc
->flip_work
;
11672 if (work
!= NULL
&&
11673 is_mmio_work(work
) &&
11674 pageflip_finished(crtc
, work
))
11675 page_flip_completed(crtc
);
11677 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
11680 static inline void intel_mark_page_flip_active(struct intel_crtc
*crtc
,
11681 struct intel_flip_work
*work
)
11683 work
->flip_queued_vblank
= intel_crtc_get_vblank_counter(crtc
);
11685 /* Ensure that the work item is consistent when activating it ... */
11686 smp_mb__before_atomic();
11687 atomic_set(&work
->pending
, 1);
11690 static int intel_gen2_queue_flip(struct drm_device
*dev
,
11691 struct drm_crtc
*crtc
,
11692 struct drm_framebuffer
*fb
,
11693 struct drm_i915_gem_object
*obj
,
11694 struct drm_i915_gem_request
*req
,
11697 struct intel_ring
*ring
= req
->ring
;
11698 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11702 ret
= intel_ring_begin(req
, 6);
11706 /* Can't queue multiple flips, so wait for the previous
11707 * one to finish before executing the next.
11709 if (intel_crtc
->plane
)
11710 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
11712 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
11713 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
11714 intel_ring_emit(ring
, MI_NOOP
);
11715 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
11716 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
11717 intel_ring_emit(ring
, fb
->pitches
[0]);
11718 intel_ring_emit(ring
, intel_crtc
->flip_work
->gtt_offset
);
11719 intel_ring_emit(ring
, 0); /* aux display base address, unused */
11724 static int intel_gen3_queue_flip(struct drm_device
*dev
,
11725 struct drm_crtc
*crtc
,
11726 struct drm_framebuffer
*fb
,
11727 struct drm_i915_gem_object
*obj
,
11728 struct drm_i915_gem_request
*req
,
11731 struct intel_ring
*ring
= req
->ring
;
11732 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11736 ret
= intel_ring_begin(req
, 6);
11740 if (intel_crtc
->plane
)
11741 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
11743 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
11744 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
11745 intel_ring_emit(ring
, MI_NOOP
);
11746 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
|
11747 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
11748 intel_ring_emit(ring
, fb
->pitches
[0]);
11749 intel_ring_emit(ring
, intel_crtc
->flip_work
->gtt_offset
);
11750 intel_ring_emit(ring
, MI_NOOP
);
11755 static int intel_gen4_queue_flip(struct drm_device
*dev
,
11756 struct drm_crtc
*crtc
,
11757 struct drm_framebuffer
*fb
,
11758 struct drm_i915_gem_object
*obj
,
11759 struct drm_i915_gem_request
*req
,
11762 struct intel_ring
*ring
= req
->ring
;
11763 struct drm_i915_private
*dev_priv
= to_i915(dev
);
11764 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11765 uint32_t pf
, pipesrc
;
11768 ret
= intel_ring_begin(req
, 4);
11772 /* i965+ uses the linear or tiled offsets from the
11773 * Display Registers (which do not change across a page-flip)
11774 * so we need only reprogram the base address.
11776 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
11777 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
11778 intel_ring_emit(ring
, fb
->pitches
[0]);
11779 intel_ring_emit(ring
, intel_crtc
->flip_work
->gtt_offset
|
11780 intel_fb_modifier_to_tiling(fb
->modifier
[0]));
11782 /* XXX Enabling the panel-fitter across page-flip is so far
11783 * untested on non-native modes, so ignore it for now.
11784 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
11787 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
11788 intel_ring_emit(ring
, pf
| pipesrc
);
11793 static int intel_gen6_queue_flip(struct drm_device
*dev
,
11794 struct drm_crtc
*crtc
,
11795 struct drm_framebuffer
*fb
,
11796 struct drm_i915_gem_object
*obj
,
11797 struct drm_i915_gem_request
*req
,
11800 struct intel_ring
*ring
= req
->ring
;
11801 struct drm_i915_private
*dev_priv
= to_i915(dev
);
11802 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11803 uint32_t pf
, pipesrc
;
11806 ret
= intel_ring_begin(req
, 4);
11810 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
11811 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
11812 intel_ring_emit(ring
, fb
->pitches
[0] |
11813 intel_fb_modifier_to_tiling(fb
->modifier
[0]));
11814 intel_ring_emit(ring
, intel_crtc
->flip_work
->gtt_offset
);
11816 /* Contrary to the suggestions in the documentation,
11817 * "Enable Panel Fitter" does not seem to be required when page
11818 * flipping with a non-native mode, and worse causes a normal
11820 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
11823 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
11824 intel_ring_emit(ring
, pf
| pipesrc
);
11829 static int intel_gen7_queue_flip(struct drm_device
*dev
,
11830 struct drm_crtc
*crtc
,
11831 struct drm_framebuffer
*fb
,
11832 struct drm_i915_gem_object
*obj
,
11833 struct drm_i915_gem_request
*req
,
11836 struct drm_i915_private
*dev_priv
= to_i915(dev
);
11837 struct intel_ring
*ring
= req
->ring
;
11838 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11839 uint32_t plane_bit
= 0;
11842 switch (intel_crtc
->plane
) {
11844 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_A
;
11847 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_B
;
11850 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_C
;
11853 WARN_ONCE(1, "unknown plane in flip command\n");
11858 if (req
->engine
->id
== RCS
) {
11861 * On Gen 8, SRM is now taking an extra dword to accommodate
11862 * 48bits addresses, and we need a NOOP for the batch size to
11865 if (IS_GEN8(dev_priv
))
11870 * BSpec MI_DISPLAY_FLIP for IVB:
11871 * "The full packet must be contained within the same cache line."
11873 * Currently the LRI+SRM+MI_DISPLAY_FLIP all fit within the same
11874 * cacheline, if we ever start emitting more commands before
11875 * the MI_DISPLAY_FLIP we may need to first emit everything else,
11876 * then do the cacheline alignment, and finally emit the
11879 ret
= intel_ring_cacheline_align(req
);
11883 ret
= intel_ring_begin(req
, len
);
11887 /* Unmask the flip-done completion message. Note that the bspec says that
11888 * we should do this for both the BCS and RCS, and that we must not unmask
11889 * more than one flip event at any time (or ensure that one flip message
11890 * can be sent by waiting for flip-done prior to queueing new flips).
11891 * Experimentation says that BCS works despite DERRMR masking all
11892 * flip-done completion events and that unmasking all planes at once
11893 * for the RCS also doesn't appear to drop events. Setting the DERRMR
11894 * to zero does lead to lockups within MI_DISPLAY_FLIP.
11896 if (req
->engine
->id
== RCS
) {
11897 intel_ring_emit(ring
, MI_LOAD_REGISTER_IMM(1));
11898 intel_ring_emit_reg(ring
, DERRMR
);
11899 intel_ring_emit(ring
, ~(DERRMR_PIPEA_PRI_FLIP_DONE
|
11900 DERRMR_PIPEB_PRI_FLIP_DONE
|
11901 DERRMR_PIPEC_PRI_FLIP_DONE
));
11902 if (IS_GEN8(dev_priv
))
11903 intel_ring_emit(ring
, MI_STORE_REGISTER_MEM_GEN8
|
11904 MI_SRM_LRM_GLOBAL_GTT
);
11906 intel_ring_emit(ring
, MI_STORE_REGISTER_MEM
|
11907 MI_SRM_LRM_GLOBAL_GTT
);
11908 intel_ring_emit_reg(ring
, DERRMR
);
11909 intel_ring_emit(ring
,
11910 i915_ggtt_offset(req
->engine
->scratch
) + 256);
11911 if (IS_GEN8(dev_priv
)) {
11912 intel_ring_emit(ring
, 0);
11913 intel_ring_emit(ring
, MI_NOOP
);
11917 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
| plane_bit
);
11918 intel_ring_emit(ring
, fb
->pitches
[0] |
11919 intel_fb_modifier_to_tiling(fb
->modifier
[0]));
11920 intel_ring_emit(ring
, intel_crtc
->flip_work
->gtt_offset
);
11921 intel_ring_emit(ring
, (MI_NOOP
));
11926 static bool use_mmio_flip(struct intel_engine_cs
*engine
,
11927 struct drm_i915_gem_object
*obj
)
11930 * This is not being used for older platforms, because
11931 * non-availability of flip done interrupt forces us to use
11932 * CS flips. Older platforms derive flip done using some clever
11933 * tricks involving the flip_pending status bits and vblank irqs.
11934 * So using MMIO flips there would disrupt this mechanism.
11937 if (engine
== NULL
)
11940 if (INTEL_GEN(engine
->i915
) < 5)
11943 if (i915
.use_mmio_flip
< 0)
11945 else if (i915
.use_mmio_flip
> 0)
11947 else if (i915
.enable_execlists
)
11950 return engine
!= i915_gem_object_last_write_engine(obj
);
11953 static void skl_do_mmio_flip(struct intel_crtc
*intel_crtc
,
11954 unsigned int rotation
,
11955 struct intel_flip_work
*work
)
11957 struct drm_device
*dev
= intel_crtc
->base
.dev
;
11958 struct drm_i915_private
*dev_priv
= to_i915(dev
);
11959 struct drm_framebuffer
*fb
= intel_crtc
->base
.primary
->fb
;
11960 const enum pipe pipe
= intel_crtc
->pipe
;
11961 u32 ctl
, stride
= skl_plane_stride(fb
, 0, rotation
);
11963 ctl
= I915_READ(PLANE_CTL(pipe
, 0));
11964 ctl
&= ~PLANE_CTL_TILED_MASK
;
11965 switch (fb
->modifier
[0]) {
11966 case DRM_FORMAT_MOD_NONE
:
11968 case I915_FORMAT_MOD_X_TILED
:
11969 ctl
|= PLANE_CTL_TILED_X
;
11971 case I915_FORMAT_MOD_Y_TILED
:
11972 ctl
|= PLANE_CTL_TILED_Y
;
11974 case I915_FORMAT_MOD_Yf_TILED
:
11975 ctl
|= PLANE_CTL_TILED_YF
;
11978 MISSING_CASE(fb
->modifier
[0]);
11982 * Both PLANE_CTL and PLANE_STRIDE are not updated on vblank but on
11983 * PLANE_SURF updates, the update is then guaranteed to be atomic.
11985 I915_WRITE(PLANE_CTL(pipe
, 0), ctl
);
11986 I915_WRITE(PLANE_STRIDE(pipe
, 0), stride
);
11988 I915_WRITE(PLANE_SURF(pipe
, 0), work
->gtt_offset
);
11989 POSTING_READ(PLANE_SURF(pipe
, 0));
11992 static void ilk_do_mmio_flip(struct intel_crtc
*intel_crtc
,
11993 struct intel_flip_work
*work
)
11995 struct drm_device
*dev
= intel_crtc
->base
.dev
;
11996 struct drm_i915_private
*dev_priv
= to_i915(dev
);
11997 struct drm_framebuffer
*fb
= intel_crtc
->base
.primary
->fb
;
11998 i915_reg_t reg
= DSPCNTR(intel_crtc
->plane
);
12001 dspcntr
= I915_READ(reg
);
12003 if (fb
->modifier
[0] == I915_FORMAT_MOD_X_TILED
)
12004 dspcntr
|= DISPPLANE_TILED
;
12006 dspcntr
&= ~DISPPLANE_TILED
;
12008 I915_WRITE(reg
, dspcntr
);
12010 I915_WRITE(DSPSURF(intel_crtc
->plane
), work
->gtt_offset
);
12011 POSTING_READ(DSPSURF(intel_crtc
->plane
));
12014 static void intel_mmio_flip_work_func(struct work_struct
*w
)
12016 struct intel_flip_work
*work
=
12017 container_of(w
, struct intel_flip_work
, mmio_work
);
12018 struct intel_crtc
*crtc
= to_intel_crtc(work
->crtc
);
12019 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
12020 struct intel_framebuffer
*intel_fb
=
12021 to_intel_framebuffer(crtc
->base
.primary
->fb
);
12022 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
12024 WARN_ON(i915_gem_object_wait(obj
, 0, MAX_SCHEDULE_TIMEOUT
, NULL
) < 0);
12026 intel_pipe_update_start(crtc
);
12028 if (INTEL_GEN(dev_priv
) >= 9)
12029 skl_do_mmio_flip(crtc
, work
->rotation
, work
);
12031 /* use_mmio_flip() retricts MMIO flips to ilk+ */
12032 ilk_do_mmio_flip(crtc
, work
);
12034 intel_pipe_update_end(crtc
, work
);
12037 static int intel_default_queue_flip(struct drm_device
*dev
,
12038 struct drm_crtc
*crtc
,
12039 struct drm_framebuffer
*fb
,
12040 struct drm_i915_gem_object
*obj
,
12041 struct drm_i915_gem_request
*req
,
12047 static bool __pageflip_stall_check_cs(struct drm_i915_private
*dev_priv
,
12048 struct intel_crtc
*intel_crtc
,
12049 struct intel_flip_work
*work
)
12053 if (!atomic_read(&work
->pending
))
12058 vblank
= intel_crtc_get_vblank_counter(intel_crtc
);
12059 if (work
->flip_ready_vblank
== 0) {
12060 if (work
->flip_queued_req
&&
12061 !i915_gem_request_completed(work
->flip_queued_req
))
12064 work
->flip_ready_vblank
= vblank
;
12067 if (vblank
- work
->flip_ready_vblank
< 3)
12070 /* Potential stall - if we see that the flip has happened,
12071 * assume a missed interrupt. */
12072 if (INTEL_GEN(dev_priv
) >= 4)
12073 addr
= I915_HI_DISPBASE(I915_READ(DSPSURF(intel_crtc
->plane
)));
12075 addr
= I915_READ(DSPADDR(intel_crtc
->plane
));
12077 /* There is a potential issue here with a false positive after a flip
12078 * to the same address. We could address this by checking for a
12079 * non-incrementing frame counter.
12081 return addr
== work
->gtt_offset
;
12084 void intel_check_page_flip(struct drm_i915_private
*dev_priv
, int pipe
)
12086 struct drm_device
*dev
= &dev_priv
->drm
;
12087 struct intel_crtc
*crtc
= intel_get_crtc_for_pipe(dev_priv
, pipe
);
12088 struct intel_flip_work
*work
;
12090 WARN_ON(!in_interrupt());
12095 spin_lock(&dev
->event_lock
);
12096 work
= crtc
->flip_work
;
12098 if (work
!= NULL
&& !is_mmio_work(work
) &&
12099 __pageflip_stall_check_cs(dev_priv
, crtc
, work
)) {
12101 "Kicking stuck page flip: queued at %d, now %d\n",
12102 work
->flip_queued_vblank
, intel_crtc_get_vblank_counter(crtc
));
12103 page_flip_completed(crtc
);
12107 if (work
!= NULL
&& !is_mmio_work(work
) &&
12108 intel_crtc_get_vblank_counter(crtc
) - work
->flip_queued_vblank
> 1)
12109 intel_queue_rps_boost_for_request(work
->flip_queued_req
);
12110 spin_unlock(&dev
->event_lock
);
12113 static int intel_crtc_page_flip(struct drm_crtc
*crtc
,
12114 struct drm_framebuffer
*fb
,
12115 struct drm_pending_vblank_event
*event
,
12116 uint32_t page_flip_flags
)
12118 struct drm_device
*dev
= crtc
->dev
;
12119 struct drm_i915_private
*dev_priv
= to_i915(dev
);
12120 struct drm_framebuffer
*old_fb
= crtc
->primary
->fb
;
12121 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
12122 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
12123 struct drm_plane
*primary
= crtc
->primary
;
12124 enum pipe pipe
= intel_crtc
->pipe
;
12125 struct intel_flip_work
*work
;
12126 struct intel_engine_cs
*engine
;
12128 struct drm_i915_gem_request
*request
;
12129 struct i915_vma
*vma
;
12133 * drm_mode_page_flip_ioctl() should already catch this, but double
12134 * check to be safe. In the future we may enable pageflipping from
12135 * a disabled primary plane.
12137 if (WARN_ON(intel_fb_obj(old_fb
) == NULL
))
12140 /* Can't change pixel format via MI display flips. */
12141 if (fb
->pixel_format
!= crtc
->primary
->fb
->pixel_format
)
12145 * TILEOFF/LINOFF registers can't be changed via MI display flips.
12146 * Note that pitch changes could also affect these register.
12148 if (INTEL_GEN(dev_priv
) > 3 &&
12149 (fb
->offsets
[0] != crtc
->primary
->fb
->offsets
[0] ||
12150 fb
->pitches
[0] != crtc
->primary
->fb
->pitches
[0]))
12153 if (i915_terminally_wedged(&dev_priv
->gpu_error
))
12156 work
= kzalloc(sizeof(*work
), GFP_KERNEL
);
12160 work
->event
= event
;
12162 work
->old_fb
= old_fb
;
12163 INIT_WORK(&work
->unpin_work
, intel_unpin_work_fn
);
12165 ret
= drm_crtc_vblank_get(crtc
);
12169 /* We borrow the event spin lock for protecting flip_work */
12170 spin_lock_irq(&dev
->event_lock
);
12171 if (intel_crtc
->flip_work
) {
12172 /* Before declaring the flip queue wedged, check if
12173 * the hardware completed the operation behind our backs.
12175 if (pageflip_finished(intel_crtc
, intel_crtc
->flip_work
)) {
12176 DRM_DEBUG_DRIVER("flip queue: previous flip completed, continuing\n");
12177 page_flip_completed(intel_crtc
);
12179 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
12180 spin_unlock_irq(&dev
->event_lock
);
12182 drm_crtc_vblank_put(crtc
);
12187 intel_crtc
->flip_work
= work
;
12188 spin_unlock_irq(&dev
->event_lock
);
12190 if (atomic_read(&intel_crtc
->unpin_work_count
) >= 2)
12191 flush_workqueue(dev_priv
->wq
);
12193 /* Reference the objects for the scheduled work. */
12194 drm_framebuffer_reference(work
->old_fb
);
12196 crtc
->primary
->fb
= fb
;
12197 update_state_fb(crtc
->primary
);
12199 work
->pending_flip_obj
= i915_gem_object_get(obj
);
12201 ret
= i915_mutex_lock_interruptible(dev
);
12205 intel_crtc
->reset_count
= i915_reset_count(&dev_priv
->gpu_error
);
12206 if (i915_reset_in_progress_or_wedged(&dev_priv
->gpu_error
)) {
12211 atomic_inc(&intel_crtc
->unpin_work_count
);
12213 if (INTEL_GEN(dev_priv
) >= 5 || IS_G4X(dev_priv
))
12214 work
->flip_count
= I915_READ(PIPE_FLIPCOUNT_G4X(pipe
)) + 1;
12216 if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) {
12217 engine
= dev_priv
->engine
[BCS
];
12218 if (fb
->modifier
[0] != old_fb
->modifier
[0])
12219 /* vlv: DISPLAY_FLIP fails to change tiling */
12221 } else if (IS_IVYBRIDGE(dev_priv
) || IS_HASWELL(dev_priv
)) {
12222 engine
= dev_priv
->engine
[BCS
];
12223 } else if (INTEL_GEN(dev_priv
) >= 7) {
12224 engine
= i915_gem_object_last_write_engine(obj
);
12225 if (engine
== NULL
|| engine
->id
!= RCS
)
12226 engine
= dev_priv
->engine
[BCS
];
12228 engine
= dev_priv
->engine
[RCS
];
12231 mmio_flip
= use_mmio_flip(engine
, obj
);
12233 vma
= intel_pin_and_fence_fb_obj(fb
, primary
->state
->rotation
);
12235 ret
= PTR_ERR(vma
);
12236 goto cleanup_pending
;
12239 work
->gtt_offset
= intel_fb_gtt_offset(fb
, primary
->state
->rotation
);
12240 work
->gtt_offset
+= intel_crtc
->dspaddr_offset
;
12241 work
->rotation
= crtc
->primary
->state
->rotation
;
12244 * There's the potential that the next frame will not be compatible with
12245 * FBC, so we want to call pre_update() before the actual page flip.
12246 * The problem is that pre_update() caches some information about the fb
12247 * object, so we want to do this only after the object is pinned. Let's
12248 * be on the safe side and do this immediately before scheduling the
12251 intel_fbc_pre_update(intel_crtc
, intel_crtc
->config
,
12252 to_intel_plane_state(primary
->state
));
12255 INIT_WORK(&work
->mmio_work
, intel_mmio_flip_work_func
);
12256 queue_work(system_unbound_wq
, &work
->mmio_work
);
12258 request
= i915_gem_request_alloc(engine
, engine
->last_context
);
12259 if (IS_ERR(request
)) {
12260 ret
= PTR_ERR(request
);
12261 goto cleanup_unpin
;
12264 ret
= i915_gem_request_await_object(request
, obj
, false);
12266 goto cleanup_request
;
12268 ret
= dev_priv
->display
.queue_flip(dev
, crtc
, fb
, obj
, request
,
12271 goto cleanup_request
;
12273 intel_mark_page_flip_active(intel_crtc
, work
);
12275 work
->flip_queued_req
= i915_gem_request_get(request
);
12276 i915_add_request_no_flush(request
);
12279 i915_gem_object_wait_priority(obj
, 0, I915_PRIORITY_DISPLAY
);
12280 i915_gem_track_fb(intel_fb_obj(old_fb
), obj
,
12281 to_intel_plane(primary
)->frontbuffer_bit
);
12282 mutex_unlock(&dev
->struct_mutex
);
12284 intel_frontbuffer_flip_prepare(to_i915(dev
),
12285 to_intel_plane(primary
)->frontbuffer_bit
);
12287 trace_i915_flip_request(intel_crtc
->plane
, obj
);
12292 i915_add_request_no_flush(request
);
12294 intel_unpin_fb_obj(fb
, crtc
->primary
->state
->rotation
);
12296 atomic_dec(&intel_crtc
->unpin_work_count
);
12298 mutex_unlock(&dev
->struct_mutex
);
12300 crtc
->primary
->fb
= old_fb
;
12301 update_state_fb(crtc
->primary
);
12303 i915_gem_object_put(obj
);
12304 drm_framebuffer_unreference(work
->old_fb
);
12306 spin_lock_irq(&dev
->event_lock
);
12307 intel_crtc
->flip_work
= NULL
;
12308 spin_unlock_irq(&dev
->event_lock
);
12310 drm_crtc_vblank_put(crtc
);
12315 struct drm_atomic_state
*state
;
12316 struct drm_plane_state
*plane_state
;
12319 state
= drm_atomic_state_alloc(dev
);
12322 state
->acquire_ctx
= drm_modeset_legacy_acquire_ctx(crtc
);
12325 plane_state
= drm_atomic_get_plane_state(state
, primary
);
12326 ret
= PTR_ERR_OR_ZERO(plane_state
);
12328 drm_atomic_set_fb_for_plane(plane_state
, fb
);
12330 ret
= drm_atomic_set_crtc_for_plane(plane_state
, crtc
);
12332 ret
= drm_atomic_commit(state
);
12335 if (ret
== -EDEADLK
) {
12336 drm_modeset_backoff(state
->acquire_ctx
);
12337 drm_atomic_state_clear(state
);
12341 drm_atomic_state_put(state
);
12343 if (ret
== 0 && event
) {
12344 spin_lock_irq(&dev
->event_lock
);
12345 drm_crtc_send_vblank_event(crtc
, event
);
12346 spin_unlock_irq(&dev
->event_lock
);
12354 * intel_wm_need_update - Check whether watermarks need updating
12355 * @plane: drm plane
12356 * @state: new plane state
12358 * Check current plane state versus the new one to determine whether
12359 * watermarks need to be recalculated.
12361 * Returns true or false.
12363 static bool intel_wm_need_update(struct drm_plane
*plane
,
12364 struct drm_plane_state
*state
)
12366 struct intel_plane_state
*new = to_intel_plane_state(state
);
12367 struct intel_plane_state
*cur
= to_intel_plane_state(plane
->state
);
12369 /* Update watermarks on tiling or size changes. */
12370 if (new->base
.visible
!= cur
->base
.visible
)
12373 if (!cur
->base
.fb
|| !new->base
.fb
)
12376 if (cur
->base
.fb
->modifier
[0] != new->base
.fb
->modifier
[0] ||
12377 cur
->base
.rotation
!= new->base
.rotation
||
12378 drm_rect_width(&new->base
.src
) != drm_rect_width(&cur
->base
.src
) ||
12379 drm_rect_height(&new->base
.src
) != drm_rect_height(&cur
->base
.src
) ||
12380 drm_rect_width(&new->base
.dst
) != drm_rect_width(&cur
->base
.dst
) ||
12381 drm_rect_height(&new->base
.dst
) != drm_rect_height(&cur
->base
.dst
))
12387 static bool needs_scaling(struct intel_plane_state
*state
)
12389 int src_w
= drm_rect_width(&state
->base
.src
) >> 16;
12390 int src_h
= drm_rect_height(&state
->base
.src
) >> 16;
12391 int dst_w
= drm_rect_width(&state
->base
.dst
);
12392 int dst_h
= drm_rect_height(&state
->base
.dst
);
12394 return (src_w
!= dst_w
|| src_h
!= dst_h
);
12397 int intel_plane_atomic_calc_changes(struct drm_crtc_state
*crtc_state
,
12398 struct drm_plane_state
*plane_state
)
12400 struct intel_crtc_state
*pipe_config
= to_intel_crtc_state(crtc_state
);
12401 struct drm_crtc
*crtc
= crtc_state
->crtc
;
12402 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
12403 struct drm_plane
*plane
= plane_state
->plane
;
12404 struct drm_device
*dev
= crtc
->dev
;
12405 struct drm_i915_private
*dev_priv
= to_i915(dev
);
12406 struct intel_plane_state
*old_plane_state
=
12407 to_intel_plane_state(plane
->state
);
12408 bool mode_changed
= needs_modeset(crtc_state
);
12409 bool was_crtc_enabled
= crtc
->state
->active
;
12410 bool is_crtc_enabled
= crtc_state
->active
;
12411 bool turn_off
, turn_on
, visible
, was_visible
;
12412 struct drm_framebuffer
*fb
= plane_state
->fb
;
12415 if (INTEL_GEN(dev_priv
) >= 9 && plane
->type
!= DRM_PLANE_TYPE_CURSOR
) {
12416 ret
= skl_update_scaler_plane(
12417 to_intel_crtc_state(crtc_state
),
12418 to_intel_plane_state(plane_state
));
12423 was_visible
= old_plane_state
->base
.visible
;
12424 visible
= to_intel_plane_state(plane_state
)->base
.visible
;
12426 if (!was_crtc_enabled
&& WARN_ON(was_visible
))
12427 was_visible
= false;
12430 * Visibility is calculated as if the crtc was on, but
12431 * after scaler setup everything depends on it being off
12432 * when the crtc isn't active.
12434 * FIXME this is wrong for watermarks. Watermarks should also
12435 * be computed as if the pipe would be active. Perhaps move
12436 * per-plane wm computation to the .check_plane() hook, and
12437 * only combine the results from all planes in the current place?
12439 if (!is_crtc_enabled
)
12440 to_intel_plane_state(plane_state
)->base
.visible
= visible
= false;
12442 if (!was_visible
&& !visible
)
12445 if (fb
!= old_plane_state
->base
.fb
)
12446 pipe_config
->fb_changed
= true;
12448 turn_off
= was_visible
&& (!visible
|| mode_changed
);
12449 turn_on
= visible
&& (!was_visible
|| mode_changed
);
12451 DRM_DEBUG_ATOMIC("[CRTC:%d:%s] has [PLANE:%d:%s] with fb %i\n",
12452 intel_crtc
->base
.base
.id
,
12453 intel_crtc
->base
.name
,
12454 plane
->base
.id
, plane
->name
,
12455 fb
? fb
->base
.id
: -1);
12457 DRM_DEBUG_ATOMIC("[PLANE:%d:%s] visible %i -> %i, off %i, on %i, ms %i\n",
12458 plane
->base
.id
, plane
->name
,
12459 was_visible
, visible
,
12460 turn_off
, turn_on
, mode_changed
);
12463 pipe_config
->update_wm_pre
= true;
12465 /* must disable cxsr around plane enable/disable */
12466 if (plane
->type
!= DRM_PLANE_TYPE_CURSOR
)
12467 pipe_config
->disable_cxsr
= true;
12468 } else if (turn_off
) {
12469 pipe_config
->update_wm_post
= true;
12471 /* must disable cxsr around plane enable/disable */
12472 if (plane
->type
!= DRM_PLANE_TYPE_CURSOR
)
12473 pipe_config
->disable_cxsr
= true;
12474 } else if (intel_wm_need_update(plane
, plane_state
)) {
12475 /* FIXME bollocks */
12476 pipe_config
->update_wm_pre
= true;
12477 pipe_config
->update_wm_post
= true;
12480 /* Pre-gen9 platforms need two-step watermark updates */
12481 if ((pipe_config
->update_wm_pre
|| pipe_config
->update_wm_post
) &&
12482 INTEL_GEN(dev_priv
) < 9 && dev_priv
->display
.optimize_watermarks
)
12483 to_intel_crtc_state(crtc_state
)->wm
.need_postvbl_update
= true;
12485 if (visible
|| was_visible
)
12486 pipe_config
->fb_bits
|= to_intel_plane(plane
)->frontbuffer_bit
;
12489 * WaCxSRDisabledForSpriteScaling:ivb
12491 * cstate->update_wm was already set above, so this flag will
12492 * take effect when we commit and program watermarks.
12494 if (plane
->type
== DRM_PLANE_TYPE_OVERLAY
&& IS_IVYBRIDGE(dev_priv
) &&
12495 needs_scaling(to_intel_plane_state(plane_state
)) &&
12496 !needs_scaling(old_plane_state
))
12497 pipe_config
->disable_lp_wm
= true;
12502 static bool encoders_cloneable(const struct intel_encoder
*a
,
12503 const struct intel_encoder
*b
)
12505 /* masks could be asymmetric, so check both ways */
12506 return a
== b
|| (a
->cloneable
& (1 << b
->type
) &&
12507 b
->cloneable
& (1 << a
->type
));
12510 static bool check_single_encoder_cloning(struct drm_atomic_state
*state
,
12511 struct intel_crtc
*crtc
,
12512 struct intel_encoder
*encoder
)
12514 struct intel_encoder
*source_encoder
;
12515 struct drm_connector
*connector
;
12516 struct drm_connector_state
*connector_state
;
12519 for_each_connector_in_state(state
, connector
, connector_state
, i
) {
12520 if (connector_state
->crtc
!= &crtc
->base
)
12524 to_intel_encoder(connector_state
->best_encoder
);
12525 if (!encoders_cloneable(encoder
, source_encoder
))
12532 static int intel_crtc_atomic_check(struct drm_crtc
*crtc
,
12533 struct drm_crtc_state
*crtc_state
)
12535 struct drm_device
*dev
= crtc
->dev
;
12536 struct drm_i915_private
*dev_priv
= to_i915(dev
);
12537 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
12538 struct intel_crtc_state
*pipe_config
=
12539 to_intel_crtc_state(crtc_state
);
12540 struct drm_atomic_state
*state
= crtc_state
->state
;
12542 bool mode_changed
= needs_modeset(crtc_state
);
12544 if (mode_changed
&& !crtc_state
->active
)
12545 pipe_config
->update_wm_post
= true;
12547 if (mode_changed
&& crtc_state
->enable
&&
12548 dev_priv
->display
.crtc_compute_clock
&&
12549 !WARN_ON(pipe_config
->shared_dpll
)) {
12550 ret
= dev_priv
->display
.crtc_compute_clock(intel_crtc
,
12556 if (crtc_state
->color_mgmt_changed
) {
12557 ret
= intel_color_check(crtc
, crtc_state
);
12562 * Changing color management on Intel hardware is
12563 * handled as part of planes update.
12565 crtc_state
->planes_changed
= true;
12569 if (dev_priv
->display
.compute_pipe_wm
) {
12570 ret
= dev_priv
->display
.compute_pipe_wm(pipe_config
);
12572 DRM_DEBUG_KMS("Target pipe watermarks are invalid\n");
12577 if (dev_priv
->display
.compute_intermediate_wm
&&
12578 !to_intel_atomic_state(state
)->skip_intermediate_wm
) {
12579 if (WARN_ON(!dev_priv
->display
.compute_pipe_wm
))
12583 * Calculate 'intermediate' watermarks that satisfy both the
12584 * old state and the new state. We can program these
12587 ret
= dev_priv
->display
.compute_intermediate_wm(dev
,
12591 DRM_DEBUG_KMS("No valid intermediate pipe watermarks are possible\n");
12594 } else if (dev_priv
->display
.compute_intermediate_wm
) {
12595 if (HAS_PCH_SPLIT(dev_priv
) && INTEL_GEN(dev_priv
) < 9)
12596 pipe_config
->wm
.ilk
.intermediate
= pipe_config
->wm
.ilk
.optimal
;
12599 if (INTEL_GEN(dev_priv
) >= 9) {
12601 ret
= skl_update_scaler_crtc(pipe_config
);
12604 ret
= intel_atomic_setup_scalers(dev
, intel_crtc
,
12611 static const struct drm_crtc_helper_funcs intel_helper_funcs
= {
12612 .mode_set_base_atomic
= intel_pipe_set_base_atomic
,
12613 .atomic_begin
= intel_begin_crtc_commit
,
12614 .atomic_flush
= intel_finish_crtc_commit
,
12615 .atomic_check
= intel_crtc_atomic_check
,
12618 static void intel_modeset_update_connector_atomic_state(struct drm_device
*dev
)
12620 struct intel_connector
*connector
;
12622 for_each_intel_connector(dev
, connector
) {
12623 if (connector
->base
.state
->crtc
)
12624 drm_connector_unreference(&connector
->base
);
12626 if (connector
->base
.encoder
) {
12627 connector
->base
.state
->best_encoder
=
12628 connector
->base
.encoder
;
12629 connector
->base
.state
->crtc
=
12630 connector
->base
.encoder
->crtc
;
12632 drm_connector_reference(&connector
->base
);
12634 connector
->base
.state
->best_encoder
= NULL
;
12635 connector
->base
.state
->crtc
= NULL
;
12641 connected_sink_compute_bpp(struct intel_connector
*connector
,
12642 struct intel_crtc_state
*pipe_config
)
12644 const struct drm_display_info
*info
= &connector
->base
.display_info
;
12645 int bpp
= pipe_config
->pipe_bpp
;
12647 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n",
12648 connector
->base
.base
.id
,
12649 connector
->base
.name
);
12651 /* Don't use an invalid EDID bpc value */
12652 if (info
->bpc
!= 0 && info
->bpc
* 3 < bpp
) {
12653 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
12654 bpp
, info
->bpc
* 3);
12655 pipe_config
->pipe_bpp
= info
->bpc
* 3;
12658 /* Clamp bpp to 8 on screens without EDID 1.4 */
12659 if (info
->bpc
== 0 && bpp
> 24) {
12660 DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
12662 pipe_config
->pipe_bpp
= 24;
12667 compute_baseline_pipe_bpp(struct intel_crtc
*crtc
,
12668 struct intel_crtc_state
*pipe_config
)
12670 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
12671 struct drm_atomic_state
*state
;
12672 struct drm_connector
*connector
;
12673 struct drm_connector_state
*connector_state
;
12676 if ((IS_G4X(dev_priv
) || IS_VALLEYVIEW(dev_priv
) ||
12677 IS_CHERRYVIEW(dev_priv
)))
12679 else if (INTEL_GEN(dev_priv
) >= 5)
12685 pipe_config
->pipe_bpp
= bpp
;
12687 state
= pipe_config
->base
.state
;
12689 /* Clamp display bpp to EDID value */
12690 for_each_connector_in_state(state
, connector
, connector_state
, i
) {
12691 if (connector_state
->crtc
!= &crtc
->base
)
12694 connected_sink_compute_bpp(to_intel_connector(connector
),
12701 static void intel_dump_crtc_timings(const struct drm_display_mode
*mode
)
12703 DRM_DEBUG_KMS("crtc timings: %d %d %d %d %d %d %d %d %d, "
12704 "type: 0x%x flags: 0x%x\n",
12706 mode
->crtc_hdisplay
, mode
->crtc_hsync_start
,
12707 mode
->crtc_hsync_end
, mode
->crtc_htotal
,
12708 mode
->crtc_vdisplay
, mode
->crtc_vsync_start
,
12709 mode
->crtc_vsync_end
, mode
->crtc_vtotal
, mode
->type
, mode
->flags
);
12713 intel_dump_m_n_config(struct intel_crtc_state
*pipe_config
, char *id
,
12714 unsigned int lane_count
, struct intel_link_m_n
*m_n
)
12716 DRM_DEBUG_KMS("%s: lanes: %i; gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
12718 m_n
->gmch_m
, m_n
->gmch_n
,
12719 m_n
->link_m
, m_n
->link_n
, m_n
->tu
);
12722 static void intel_dump_pipe_config(struct intel_crtc
*crtc
,
12723 struct intel_crtc_state
*pipe_config
,
12724 const char *context
)
12726 struct drm_device
*dev
= crtc
->base
.dev
;
12727 struct drm_i915_private
*dev_priv
= to_i915(dev
);
12728 struct drm_plane
*plane
;
12729 struct intel_plane
*intel_plane
;
12730 struct intel_plane_state
*state
;
12731 struct drm_framebuffer
*fb
;
12733 DRM_DEBUG_KMS("[CRTC:%d:%s]%s\n",
12734 crtc
->base
.base
.id
, crtc
->base
.name
, context
);
12736 DRM_DEBUG_KMS("cpu_transcoder: %s, pipe bpp: %i, dithering: %i\n",
12737 transcoder_name(pipe_config
->cpu_transcoder
),
12738 pipe_config
->pipe_bpp
, pipe_config
->dither
);
12740 if (pipe_config
->has_pch_encoder
)
12741 intel_dump_m_n_config(pipe_config
, "fdi",
12742 pipe_config
->fdi_lanes
,
12743 &pipe_config
->fdi_m_n
);
12745 if (intel_crtc_has_dp_encoder(pipe_config
)) {
12746 intel_dump_m_n_config(pipe_config
, "dp m_n",
12747 pipe_config
->lane_count
, &pipe_config
->dp_m_n
);
12748 if (pipe_config
->has_drrs
)
12749 intel_dump_m_n_config(pipe_config
, "dp m2_n2",
12750 pipe_config
->lane_count
,
12751 &pipe_config
->dp_m2_n2
);
12754 DRM_DEBUG_KMS("audio: %i, infoframes: %i\n",
12755 pipe_config
->has_audio
, pipe_config
->has_infoframe
);
12757 DRM_DEBUG_KMS("requested mode:\n");
12758 drm_mode_debug_printmodeline(&pipe_config
->base
.mode
);
12759 DRM_DEBUG_KMS("adjusted mode:\n");
12760 drm_mode_debug_printmodeline(&pipe_config
->base
.adjusted_mode
);
12761 intel_dump_crtc_timings(&pipe_config
->base
.adjusted_mode
);
12762 DRM_DEBUG_KMS("port clock: %d, pipe src size: %dx%d\n",
12763 pipe_config
->port_clock
,
12764 pipe_config
->pipe_src_w
, pipe_config
->pipe_src_h
);
12766 if (INTEL_GEN(dev_priv
) >= 9)
12767 DRM_DEBUG_KMS("num_scalers: %d, scaler_users: 0x%x, scaler_id: %d\n",
12769 pipe_config
->scaler_state
.scaler_users
,
12770 pipe_config
->scaler_state
.scaler_id
);
12772 if (HAS_GMCH_DISPLAY(dev_priv
))
12773 DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n",
12774 pipe_config
->gmch_pfit
.control
,
12775 pipe_config
->gmch_pfit
.pgm_ratios
,
12776 pipe_config
->gmch_pfit
.lvds_border_bits
);
12778 DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n",
12779 pipe_config
->pch_pfit
.pos
,
12780 pipe_config
->pch_pfit
.size
,
12781 enableddisabled(pipe_config
->pch_pfit
.enabled
));
12783 DRM_DEBUG_KMS("ips: %i, double wide: %i\n",
12784 pipe_config
->ips_enabled
, pipe_config
->double_wide
);
12786 if (IS_BROXTON(dev_priv
)) {
12787 DRM_DEBUG_KMS("dpll_hw_state: ebb0: 0x%x, ebb4: 0x%x,"
12788 "pll0: 0x%x, pll1: 0x%x, pll2: 0x%x, pll3: 0x%x, "
12789 "pll6: 0x%x, pll8: 0x%x, pll9: 0x%x, pll10: 0x%x, pcsdw12: 0x%x\n",
12790 pipe_config
->dpll_hw_state
.ebb0
,
12791 pipe_config
->dpll_hw_state
.ebb4
,
12792 pipe_config
->dpll_hw_state
.pll0
,
12793 pipe_config
->dpll_hw_state
.pll1
,
12794 pipe_config
->dpll_hw_state
.pll2
,
12795 pipe_config
->dpll_hw_state
.pll3
,
12796 pipe_config
->dpll_hw_state
.pll6
,
12797 pipe_config
->dpll_hw_state
.pll8
,
12798 pipe_config
->dpll_hw_state
.pll9
,
12799 pipe_config
->dpll_hw_state
.pll10
,
12800 pipe_config
->dpll_hw_state
.pcsdw12
);
12801 } else if (IS_SKYLAKE(dev_priv
) || IS_KABYLAKE(dev_priv
)) {
12802 DRM_DEBUG_KMS("dpll_hw_state: "
12803 "ctrl1: 0x%x, cfgcr1: 0x%x, cfgcr2: 0x%x\n",
12804 pipe_config
->dpll_hw_state
.ctrl1
,
12805 pipe_config
->dpll_hw_state
.cfgcr1
,
12806 pipe_config
->dpll_hw_state
.cfgcr2
);
12807 } else if (HAS_DDI(dev_priv
)) {
12808 DRM_DEBUG_KMS("dpll_hw_state: wrpll: 0x%x spll: 0x%x\n",
12809 pipe_config
->dpll_hw_state
.wrpll
,
12810 pipe_config
->dpll_hw_state
.spll
);
12812 DRM_DEBUG_KMS("dpll_hw_state: dpll: 0x%x, dpll_md: 0x%x, "
12813 "fp0: 0x%x, fp1: 0x%x\n",
12814 pipe_config
->dpll_hw_state
.dpll
,
12815 pipe_config
->dpll_hw_state
.dpll_md
,
12816 pipe_config
->dpll_hw_state
.fp0
,
12817 pipe_config
->dpll_hw_state
.fp1
);
12820 DRM_DEBUG_KMS("planes on this crtc\n");
12821 list_for_each_entry(plane
, &dev
->mode_config
.plane_list
, head
) {
12822 struct drm_format_name_buf format_name
;
12823 intel_plane
= to_intel_plane(plane
);
12824 if (intel_plane
->pipe
!= crtc
->pipe
)
12827 state
= to_intel_plane_state(plane
->state
);
12828 fb
= state
->base
.fb
;
12830 DRM_DEBUG_KMS("[PLANE:%d:%s] disabled, scaler_id = %d\n",
12831 plane
->base
.id
, plane
->name
, state
->scaler_id
);
12835 DRM_DEBUG_KMS("[PLANE:%d:%s] FB:%d, fb = %ux%u format = %s\n",
12836 plane
->base
.id
, plane
->name
,
12837 fb
->base
.id
, fb
->width
, fb
->height
,
12838 drm_get_format_name(fb
->pixel_format
, &format_name
));
12839 if (INTEL_GEN(dev_priv
) >= 9)
12840 DRM_DEBUG_KMS("\tscaler:%d src %dx%d+%d+%d dst %dx%d+%d+%d\n",
12842 state
->base
.src
.x1
>> 16,
12843 state
->base
.src
.y1
>> 16,
12844 drm_rect_width(&state
->base
.src
) >> 16,
12845 drm_rect_height(&state
->base
.src
) >> 16,
12846 state
->base
.dst
.x1
, state
->base
.dst
.y1
,
12847 drm_rect_width(&state
->base
.dst
),
12848 drm_rect_height(&state
->base
.dst
));
12852 static bool check_digital_port_conflicts(struct drm_atomic_state
*state
)
12854 struct drm_device
*dev
= state
->dev
;
12855 struct drm_connector
*connector
;
12856 unsigned int used_ports
= 0;
12857 unsigned int used_mst_ports
= 0;
12860 * Walk the connector list instead of the encoder
12861 * list to detect the problem on ddi platforms
12862 * where there's just one encoder per digital port.
12864 drm_for_each_connector(connector
, dev
) {
12865 struct drm_connector_state
*connector_state
;
12866 struct intel_encoder
*encoder
;
12868 connector_state
= drm_atomic_get_existing_connector_state(state
, connector
);
12869 if (!connector_state
)
12870 connector_state
= connector
->state
;
12872 if (!connector_state
->best_encoder
)
12875 encoder
= to_intel_encoder(connector_state
->best_encoder
);
12877 WARN_ON(!connector_state
->crtc
);
12879 switch (encoder
->type
) {
12880 unsigned int port_mask
;
12881 case INTEL_OUTPUT_UNKNOWN
:
12882 if (WARN_ON(!HAS_DDI(to_i915(dev
))))
12884 case INTEL_OUTPUT_DP
:
12885 case INTEL_OUTPUT_HDMI
:
12886 case INTEL_OUTPUT_EDP
:
12887 port_mask
= 1 << enc_to_dig_port(&encoder
->base
)->port
;
12889 /* the same port mustn't appear more than once */
12890 if (used_ports
& port_mask
)
12893 used_ports
|= port_mask
;
12895 case INTEL_OUTPUT_DP_MST
:
12897 1 << enc_to_mst(&encoder
->base
)->primary
->port
;
12904 /* can't mix MST and SST/HDMI on the same port */
12905 if (used_ports
& used_mst_ports
)
12912 clear_intel_crtc_state(struct intel_crtc_state
*crtc_state
)
12914 struct drm_crtc_state tmp_state
;
12915 struct intel_crtc_scaler_state scaler_state
;
12916 struct intel_dpll_hw_state dpll_hw_state
;
12917 struct intel_shared_dpll
*shared_dpll
;
12920 /* FIXME: before the switch to atomic started, a new pipe_config was
12921 * kzalloc'd. Code that depends on any field being zero should be
12922 * fixed, so that the crtc_state can be safely duplicated. For now,
12923 * only fields that are know to not cause problems are preserved. */
12925 tmp_state
= crtc_state
->base
;
12926 scaler_state
= crtc_state
->scaler_state
;
12927 shared_dpll
= crtc_state
->shared_dpll
;
12928 dpll_hw_state
= crtc_state
->dpll_hw_state
;
12929 force_thru
= crtc_state
->pch_pfit
.force_thru
;
12931 memset(crtc_state
, 0, sizeof *crtc_state
);
12933 crtc_state
->base
= tmp_state
;
12934 crtc_state
->scaler_state
= scaler_state
;
12935 crtc_state
->shared_dpll
= shared_dpll
;
12936 crtc_state
->dpll_hw_state
= dpll_hw_state
;
12937 crtc_state
->pch_pfit
.force_thru
= force_thru
;
12941 intel_modeset_pipe_config(struct drm_crtc
*crtc
,
12942 struct intel_crtc_state
*pipe_config
)
12944 struct drm_atomic_state
*state
= pipe_config
->base
.state
;
12945 struct intel_encoder
*encoder
;
12946 struct drm_connector
*connector
;
12947 struct drm_connector_state
*connector_state
;
12948 int base_bpp
, ret
= -EINVAL
;
12952 clear_intel_crtc_state(pipe_config
);
12954 pipe_config
->cpu_transcoder
=
12955 (enum transcoder
) to_intel_crtc(crtc
)->pipe
;
12958 * Sanitize sync polarity flags based on requested ones. If neither
12959 * positive or negative polarity is requested, treat this as meaning
12960 * negative polarity.
12962 if (!(pipe_config
->base
.adjusted_mode
.flags
&
12963 (DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NHSYNC
)))
12964 pipe_config
->base
.adjusted_mode
.flags
|= DRM_MODE_FLAG_NHSYNC
;
12966 if (!(pipe_config
->base
.adjusted_mode
.flags
&
12967 (DRM_MODE_FLAG_PVSYNC
| DRM_MODE_FLAG_NVSYNC
)))
12968 pipe_config
->base
.adjusted_mode
.flags
|= DRM_MODE_FLAG_NVSYNC
;
12970 base_bpp
= compute_baseline_pipe_bpp(to_intel_crtc(crtc
),
12976 * Determine the real pipe dimensions. Note that stereo modes can
12977 * increase the actual pipe size due to the frame doubling and
12978 * insertion of additional space for blanks between the frame. This
12979 * is stored in the crtc timings. We use the requested mode to do this
12980 * computation to clearly distinguish it from the adjusted mode, which
12981 * can be changed by the connectors in the below retry loop.
12983 drm_crtc_get_hv_timing(&pipe_config
->base
.mode
,
12984 &pipe_config
->pipe_src_w
,
12985 &pipe_config
->pipe_src_h
);
12987 for_each_connector_in_state(state
, connector
, connector_state
, i
) {
12988 if (connector_state
->crtc
!= crtc
)
12991 encoder
= to_intel_encoder(connector_state
->best_encoder
);
12993 if (!check_single_encoder_cloning(state
, to_intel_crtc(crtc
), encoder
)) {
12994 DRM_DEBUG_KMS("rejecting invalid cloning configuration\n");
12999 * Determine output_types before calling the .compute_config()
13000 * hooks so that the hooks can use this information safely.
13002 pipe_config
->output_types
|= 1 << encoder
->type
;
13006 /* Ensure the port clock defaults are reset when retrying. */
13007 pipe_config
->port_clock
= 0;
13008 pipe_config
->pixel_multiplier
= 1;
13010 /* Fill in default crtc timings, allow encoders to overwrite them. */
13011 drm_mode_set_crtcinfo(&pipe_config
->base
.adjusted_mode
,
13012 CRTC_STEREO_DOUBLE
);
13014 /* Pass our mode to the connectors and the CRTC to give them a chance to
13015 * adjust it according to limitations or connector properties, and also
13016 * a chance to reject the mode entirely.
13018 for_each_connector_in_state(state
, connector
, connector_state
, i
) {
13019 if (connector_state
->crtc
!= crtc
)
13022 encoder
= to_intel_encoder(connector_state
->best_encoder
);
13024 if (!(encoder
->compute_config(encoder
, pipe_config
, connector_state
))) {
13025 DRM_DEBUG_KMS("Encoder config failure\n");
13030 /* Set default port clock if not overwritten by the encoder. Needs to be
13031 * done afterwards in case the encoder adjusts the mode. */
13032 if (!pipe_config
->port_clock
)
13033 pipe_config
->port_clock
= pipe_config
->base
.adjusted_mode
.crtc_clock
13034 * pipe_config
->pixel_multiplier
;
13036 ret
= intel_crtc_compute_config(to_intel_crtc(crtc
), pipe_config
);
13038 DRM_DEBUG_KMS("CRTC fixup failed\n");
13042 if (ret
== RETRY
) {
13043 if (WARN(!retry
, "loop in pipe configuration computation\n")) {
13048 DRM_DEBUG_KMS("CRTC bw constrained, retrying\n");
13050 goto encoder_retry
;
13053 /* Dithering seems to not pass-through bits correctly when it should, so
13054 * only enable it on 6bpc panels. */
13055 pipe_config
->dither
= pipe_config
->pipe_bpp
== 6*3;
13056 DRM_DEBUG_KMS("hw max bpp: %i, pipe bpp: %i, dithering: %i\n",
13057 base_bpp
, pipe_config
->pipe_bpp
, pipe_config
->dither
);
13064 intel_modeset_update_crtc_state(struct drm_atomic_state
*state
)
13066 struct drm_crtc
*crtc
;
13067 struct drm_crtc_state
*crtc_state
;
13070 /* Double check state. */
13071 for_each_crtc_in_state(state
, crtc
, crtc_state
, i
) {
13072 to_intel_crtc(crtc
)->config
= to_intel_crtc_state(crtc
->state
);
13074 /* Update hwmode for vblank functions */
13075 if (crtc
->state
->active
)
13076 crtc
->hwmode
= crtc
->state
->adjusted_mode
;
13078 crtc
->hwmode
.crtc_clock
= 0;
13081 * Update legacy state to satisfy fbc code. This can
13082 * be removed when fbc uses the atomic state.
13084 if (drm_atomic_get_existing_plane_state(state
, crtc
->primary
)) {
13085 struct drm_plane_state
*plane_state
= crtc
->primary
->state
;
13087 crtc
->primary
->fb
= plane_state
->fb
;
13088 crtc
->x
= plane_state
->src_x
>> 16;
13089 crtc
->y
= plane_state
->src_y
>> 16;
13094 static bool intel_fuzzy_clock_check(int clock1
, int clock2
)
13098 if (clock1
== clock2
)
13101 if (!clock1
|| !clock2
)
13104 diff
= abs(clock1
- clock2
);
13106 if (((((diff
+ clock1
+ clock2
) * 100)) / (clock1
+ clock2
)) < 105)
13113 intel_compare_m_n(unsigned int m
, unsigned int n
,
13114 unsigned int m2
, unsigned int n2
,
13117 if (m
== m2
&& n
== n2
)
13120 if (exact
|| !m
|| !n
|| !m2
|| !n2
)
13123 BUILD_BUG_ON(DATA_LINK_M_N_MASK
> INT_MAX
);
13130 } else if (n
< n2
) {
13140 return intel_fuzzy_clock_check(m
, m2
);
13144 intel_compare_link_m_n(const struct intel_link_m_n
*m_n
,
13145 struct intel_link_m_n
*m2_n2
,
13148 if (m_n
->tu
== m2_n2
->tu
&&
13149 intel_compare_m_n(m_n
->gmch_m
, m_n
->gmch_n
,
13150 m2_n2
->gmch_m
, m2_n2
->gmch_n
, !adjust
) &&
13151 intel_compare_m_n(m_n
->link_m
, m_n
->link_n
,
13152 m2_n2
->link_m
, m2_n2
->link_n
, !adjust
)) {
13163 intel_pipe_config_compare(struct drm_i915_private
*dev_priv
,
13164 struct intel_crtc_state
*current_config
,
13165 struct intel_crtc_state
*pipe_config
,
13170 #define INTEL_ERR_OR_DBG_KMS(fmt, ...) \
13173 DRM_ERROR(fmt, ##__VA_ARGS__); \
13175 DRM_DEBUG_KMS(fmt, ##__VA_ARGS__); \
13178 #define PIPE_CONF_CHECK_X(name) \
13179 if (current_config->name != pipe_config->name) { \
13180 INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \
13181 "(expected 0x%08x, found 0x%08x)\n", \
13182 current_config->name, \
13183 pipe_config->name); \
13187 #define PIPE_CONF_CHECK_I(name) \
13188 if (current_config->name != pipe_config->name) { \
13189 INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \
13190 "(expected %i, found %i)\n", \
13191 current_config->name, \
13192 pipe_config->name); \
13196 #define PIPE_CONF_CHECK_P(name) \
13197 if (current_config->name != pipe_config->name) { \
13198 INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \
13199 "(expected %p, found %p)\n", \
13200 current_config->name, \
13201 pipe_config->name); \
13205 #define PIPE_CONF_CHECK_M_N(name) \
13206 if (!intel_compare_link_m_n(¤t_config->name, \
13207 &pipe_config->name,\
13209 INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \
13210 "(expected tu %i gmch %i/%i link %i/%i, " \
13211 "found tu %i, gmch %i/%i link %i/%i)\n", \
13212 current_config->name.tu, \
13213 current_config->name.gmch_m, \
13214 current_config->name.gmch_n, \
13215 current_config->name.link_m, \
13216 current_config->name.link_n, \
13217 pipe_config->name.tu, \
13218 pipe_config->name.gmch_m, \
13219 pipe_config->name.gmch_n, \
13220 pipe_config->name.link_m, \
13221 pipe_config->name.link_n); \
13225 /* This is required for BDW+ where there is only one set of registers for
13226 * switching between high and low RR.
13227 * This macro can be used whenever a comparison has to be made between one
13228 * hw state and multiple sw state variables.
13230 #define PIPE_CONF_CHECK_M_N_ALT(name, alt_name) \
13231 if (!intel_compare_link_m_n(¤t_config->name, \
13232 &pipe_config->name, adjust) && \
13233 !intel_compare_link_m_n(¤t_config->alt_name, \
13234 &pipe_config->name, adjust)) { \
13235 INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \
13236 "(expected tu %i gmch %i/%i link %i/%i, " \
13237 "or tu %i gmch %i/%i link %i/%i, " \
13238 "found tu %i, gmch %i/%i link %i/%i)\n", \
13239 current_config->name.tu, \
13240 current_config->name.gmch_m, \
13241 current_config->name.gmch_n, \
13242 current_config->name.link_m, \
13243 current_config->name.link_n, \
13244 current_config->alt_name.tu, \
13245 current_config->alt_name.gmch_m, \
13246 current_config->alt_name.gmch_n, \
13247 current_config->alt_name.link_m, \
13248 current_config->alt_name.link_n, \
13249 pipe_config->name.tu, \
13250 pipe_config->name.gmch_m, \
13251 pipe_config->name.gmch_n, \
13252 pipe_config->name.link_m, \
13253 pipe_config->name.link_n); \
13257 #define PIPE_CONF_CHECK_FLAGS(name, mask) \
13258 if ((current_config->name ^ pipe_config->name) & (mask)) { \
13259 INTEL_ERR_OR_DBG_KMS("mismatch in " #name "(" #mask ") " \
13260 "(expected %i, found %i)\n", \
13261 current_config->name & (mask), \
13262 pipe_config->name & (mask)); \
13266 #define PIPE_CONF_CHECK_CLOCK_FUZZY(name) \
13267 if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \
13268 INTEL_ERR_OR_DBG_KMS("mismatch in " #name " " \
13269 "(expected %i, found %i)\n", \
13270 current_config->name, \
13271 pipe_config->name); \
13275 #define PIPE_CONF_QUIRK(quirk) \
13276 ((current_config->quirks | pipe_config->quirks) & (quirk))
13278 PIPE_CONF_CHECK_I(cpu_transcoder
);
13280 PIPE_CONF_CHECK_I(has_pch_encoder
);
13281 PIPE_CONF_CHECK_I(fdi_lanes
);
13282 PIPE_CONF_CHECK_M_N(fdi_m_n
);
13284 PIPE_CONF_CHECK_I(lane_count
);
13285 PIPE_CONF_CHECK_X(lane_lat_optim_mask
);
13287 if (INTEL_GEN(dev_priv
) < 8) {
13288 PIPE_CONF_CHECK_M_N(dp_m_n
);
13290 if (current_config
->has_drrs
)
13291 PIPE_CONF_CHECK_M_N(dp_m2_n2
);
13293 PIPE_CONF_CHECK_M_N_ALT(dp_m_n
, dp_m2_n2
);
13295 PIPE_CONF_CHECK_X(output_types
);
13297 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hdisplay
);
13298 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_htotal
);
13299 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hblank_start
);
13300 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hblank_end
);
13301 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hsync_start
);
13302 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hsync_end
);
13304 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vdisplay
);
13305 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vtotal
);
13306 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vblank_start
);
13307 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vblank_end
);
13308 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vsync_start
);
13309 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vsync_end
);
13311 PIPE_CONF_CHECK_I(pixel_multiplier
);
13312 PIPE_CONF_CHECK_I(has_hdmi_sink
);
13313 if ((INTEL_GEN(dev_priv
) < 8 && !IS_HASWELL(dev_priv
)) ||
13314 IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
13315 PIPE_CONF_CHECK_I(limited_color_range
);
13316 PIPE_CONF_CHECK_I(has_infoframe
);
13318 PIPE_CONF_CHECK_I(has_audio
);
13320 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
13321 DRM_MODE_FLAG_INTERLACE
);
13323 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS
)) {
13324 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
13325 DRM_MODE_FLAG_PHSYNC
);
13326 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
13327 DRM_MODE_FLAG_NHSYNC
);
13328 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
13329 DRM_MODE_FLAG_PVSYNC
);
13330 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
13331 DRM_MODE_FLAG_NVSYNC
);
13334 PIPE_CONF_CHECK_X(gmch_pfit
.control
);
13335 /* pfit ratios are autocomputed by the hw on gen4+ */
13336 if (INTEL_GEN(dev_priv
) < 4)
13337 PIPE_CONF_CHECK_X(gmch_pfit
.pgm_ratios
);
13338 PIPE_CONF_CHECK_X(gmch_pfit
.lvds_border_bits
);
13341 PIPE_CONF_CHECK_I(pipe_src_w
);
13342 PIPE_CONF_CHECK_I(pipe_src_h
);
13344 PIPE_CONF_CHECK_I(pch_pfit
.enabled
);
13345 if (current_config
->pch_pfit
.enabled
) {
13346 PIPE_CONF_CHECK_X(pch_pfit
.pos
);
13347 PIPE_CONF_CHECK_X(pch_pfit
.size
);
13350 PIPE_CONF_CHECK_I(scaler_state
.scaler_id
);
13353 /* BDW+ don't expose a synchronous way to read the state */
13354 if (IS_HASWELL(dev_priv
))
13355 PIPE_CONF_CHECK_I(ips_enabled
);
13357 PIPE_CONF_CHECK_I(double_wide
);
13359 PIPE_CONF_CHECK_P(shared_dpll
);
13360 PIPE_CONF_CHECK_X(dpll_hw_state
.dpll
);
13361 PIPE_CONF_CHECK_X(dpll_hw_state
.dpll_md
);
13362 PIPE_CONF_CHECK_X(dpll_hw_state
.fp0
);
13363 PIPE_CONF_CHECK_X(dpll_hw_state
.fp1
);
13364 PIPE_CONF_CHECK_X(dpll_hw_state
.wrpll
);
13365 PIPE_CONF_CHECK_X(dpll_hw_state
.spll
);
13366 PIPE_CONF_CHECK_X(dpll_hw_state
.ctrl1
);
13367 PIPE_CONF_CHECK_X(dpll_hw_state
.cfgcr1
);
13368 PIPE_CONF_CHECK_X(dpll_hw_state
.cfgcr2
);
13370 PIPE_CONF_CHECK_X(dsi_pll
.ctrl
);
13371 PIPE_CONF_CHECK_X(dsi_pll
.div
);
13373 if (IS_G4X(dev_priv
) || INTEL_GEN(dev_priv
) >= 5)
13374 PIPE_CONF_CHECK_I(pipe_bpp
);
13376 PIPE_CONF_CHECK_CLOCK_FUZZY(base
.adjusted_mode
.crtc_clock
);
13377 PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock
);
13379 #undef PIPE_CONF_CHECK_X
13380 #undef PIPE_CONF_CHECK_I
13381 #undef PIPE_CONF_CHECK_P
13382 #undef PIPE_CONF_CHECK_FLAGS
13383 #undef PIPE_CONF_CHECK_CLOCK_FUZZY
13384 #undef PIPE_CONF_QUIRK
13385 #undef INTEL_ERR_OR_DBG_KMS
13390 static void intel_pipe_config_sanity_check(struct drm_i915_private
*dev_priv
,
13391 const struct intel_crtc_state
*pipe_config
)
13393 if (pipe_config
->has_pch_encoder
) {
13394 int fdi_dotclock
= intel_dotclock_calculate(intel_fdi_link_freq(dev_priv
, pipe_config
),
13395 &pipe_config
->fdi_m_n
);
13396 int dotclock
= pipe_config
->base
.adjusted_mode
.crtc_clock
;
13399 * FDI already provided one idea for the dotclock.
13400 * Yell if the encoder disagrees.
13402 WARN(!intel_fuzzy_clock_check(fdi_dotclock
, dotclock
),
13403 "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n",
13404 fdi_dotclock
, dotclock
);
13408 static void verify_wm_state(struct drm_crtc
*crtc
,
13409 struct drm_crtc_state
*new_state
)
13411 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
13412 struct skl_ddb_allocation hw_ddb
, *sw_ddb
;
13413 struct skl_pipe_wm hw_wm
, *sw_wm
;
13414 struct skl_plane_wm
*hw_plane_wm
, *sw_plane_wm
;
13415 struct skl_ddb_entry
*hw_ddb_entry
, *sw_ddb_entry
;
13416 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
13417 const enum pipe pipe
= intel_crtc
->pipe
;
13418 int plane
, level
, max_level
= ilk_wm_max_level(dev_priv
);
13420 if (INTEL_GEN(dev_priv
) < 9 || !new_state
->active
)
13423 skl_pipe_wm_get_hw_state(crtc
, &hw_wm
);
13424 sw_wm
= &to_intel_crtc_state(new_state
)->wm
.skl
.optimal
;
13426 skl_ddb_get_hw_state(dev_priv
, &hw_ddb
);
13427 sw_ddb
= &dev_priv
->wm
.skl_hw
.ddb
;
13430 for_each_universal_plane(dev_priv
, pipe
, plane
) {
13431 hw_plane_wm
= &hw_wm
.planes
[plane
];
13432 sw_plane_wm
= &sw_wm
->planes
[plane
];
13435 for (level
= 0; level
<= max_level
; level
++) {
13436 if (skl_wm_level_equals(&hw_plane_wm
->wm
[level
],
13437 &sw_plane_wm
->wm
[level
]))
13440 DRM_ERROR("mismatch in WM pipe %c plane %d level %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
13441 pipe_name(pipe
), plane
+ 1, level
,
13442 sw_plane_wm
->wm
[level
].plane_en
,
13443 sw_plane_wm
->wm
[level
].plane_res_b
,
13444 sw_plane_wm
->wm
[level
].plane_res_l
,
13445 hw_plane_wm
->wm
[level
].plane_en
,
13446 hw_plane_wm
->wm
[level
].plane_res_b
,
13447 hw_plane_wm
->wm
[level
].plane_res_l
);
13450 if (!skl_wm_level_equals(&hw_plane_wm
->trans_wm
,
13451 &sw_plane_wm
->trans_wm
)) {
13452 DRM_ERROR("mismatch in trans WM pipe %c plane %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
13453 pipe_name(pipe
), plane
+ 1,
13454 sw_plane_wm
->trans_wm
.plane_en
,
13455 sw_plane_wm
->trans_wm
.plane_res_b
,
13456 sw_plane_wm
->trans_wm
.plane_res_l
,
13457 hw_plane_wm
->trans_wm
.plane_en
,
13458 hw_plane_wm
->trans_wm
.plane_res_b
,
13459 hw_plane_wm
->trans_wm
.plane_res_l
);
13463 hw_ddb_entry
= &hw_ddb
.plane
[pipe
][plane
];
13464 sw_ddb_entry
= &sw_ddb
->plane
[pipe
][plane
];
13466 if (!skl_ddb_entry_equal(hw_ddb_entry
, sw_ddb_entry
)) {
13467 DRM_ERROR("mismatch in DDB state pipe %c plane %d (expected (%u,%u), found (%u,%u))\n",
13468 pipe_name(pipe
), plane
+ 1,
13469 sw_ddb_entry
->start
, sw_ddb_entry
->end
,
13470 hw_ddb_entry
->start
, hw_ddb_entry
->end
);
13476 * If the cursor plane isn't active, we may not have updated it's ddb
13477 * allocation. In that case since the ddb allocation will be updated
13478 * once the plane becomes visible, we can skip this check
13480 if (intel_crtc
->cursor_addr
) {
13481 hw_plane_wm
= &hw_wm
.planes
[PLANE_CURSOR
];
13482 sw_plane_wm
= &sw_wm
->planes
[PLANE_CURSOR
];
13485 for (level
= 0; level
<= max_level
; level
++) {
13486 if (skl_wm_level_equals(&hw_plane_wm
->wm
[level
],
13487 &sw_plane_wm
->wm
[level
]))
13490 DRM_ERROR("mismatch in WM pipe %c cursor level %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
13491 pipe_name(pipe
), level
,
13492 sw_plane_wm
->wm
[level
].plane_en
,
13493 sw_plane_wm
->wm
[level
].plane_res_b
,
13494 sw_plane_wm
->wm
[level
].plane_res_l
,
13495 hw_plane_wm
->wm
[level
].plane_en
,
13496 hw_plane_wm
->wm
[level
].plane_res_b
,
13497 hw_plane_wm
->wm
[level
].plane_res_l
);
13500 if (!skl_wm_level_equals(&hw_plane_wm
->trans_wm
,
13501 &sw_plane_wm
->trans_wm
)) {
13502 DRM_ERROR("mismatch in trans WM pipe %c cursor (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
13504 sw_plane_wm
->trans_wm
.plane_en
,
13505 sw_plane_wm
->trans_wm
.plane_res_b
,
13506 sw_plane_wm
->trans_wm
.plane_res_l
,
13507 hw_plane_wm
->trans_wm
.plane_en
,
13508 hw_plane_wm
->trans_wm
.plane_res_b
,
13509 hw_plane_wm
->trans_wm
.plane_res_l
);
13513 hw_ddb_entry
= &hw_ddb
.plane
[pipe
][PLANE_CURSOR
];
13514 sw_ddb_entry
= &sw_ddb
->plane
[pipe
][PLANE_CURSOR
];
13516 if (!skl_ddb_entry_equal(hw_ddb_entry
, sw_ddb_entry
)) {
13517 DRM_ERROR("mismatch in DDB state pipe %c cursor (expected (%u,%u), found (%u,%u))\n",
13519 sw_ddb_entry
->start
, sw_ddb_entry
->end
,
13520 hw_ddb_entry
->start
, hw_ddb_entry
->end
);
13526 verify_connector_state(struct drm_device
*dev
,
13527 struct drm_atomic_state
*state
,
13528 struct drm_crtc
*crtc
)
13530 struct drm_connector
*connector
;
13531 struct drm_connector_state
*old_conn_state
;
13534 for_each_connector_in_state(state
, connector
, old_conn_state
, i
) {
13535 struct drm_encoder
*encoder
= connector
->encoder
;
13536 struct drm_connector_state
*state
= connector
->state
;
13538 if (state
->crtc
!= crtc
)
13541 intel_connector_verify_state(to_intel_connector(connector
));
13543 I915_STATE_WARN(state
->best_encoder
!= encoder
,
13544 "connector's atomic encoder doesn't match legacy encoder\n");
13549 verify_encoder_state(struct drm_device
*dev
)
13551 struct intel_encoder
*encoder
;
13552 struct intel_connector
*connector
;
13554 for_each_intel_encoder(dev
, encoder
) {
13555 bool enabled
= false;
13558 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
13559 encoder
->base
.base
.id
,
13560 encoder
->base
.name
);
13562 for_each_intel_connector(dev
, connector
) {
13563 if (connector
->base
.state
->best_encoder
!= &encoder
->base
)
13567 I915_STATE_WARN(connector
->base
.state
->crtc
!=
13568 encoder
->base
.crtc
,
13569 "connector's crtc doesn't match encoder crtc\n");
13572 I915_STATE_WARN(!!encoder
->base
.crtc
!= enabled
,
13573 "encoder's enabled state mismatch "
13574 "(expected %i, found %i)\n",
13575 !!encoder
->base
.crtc
, enabled
);
13577 if (!encoder
->base
.crtc
) {
13580 active
= encoder
->get_hw_state(encoder
, &pipe
);
13581 I915_STATE_WARN(active
,
13582 "encoder detached but still enabled on pipe %c.\n",
13589 verify_crtc_state(struct drm_crtc
*crtc
,
13590 struct drm_crtc_state
*old_crtc_state
,
13591 struct drm_crtc_state
*new_crtc_state
)
13593 struct drm_device
*dev
= crtc
->dev
;
13594 struct drm_i915_private
*dev_priv
= to_i915(dev
);
13595 struct intel_encoder
*encoder
;
13596 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
13597 struct intel_crtc_state
*pipe_config
, *sw_config
;
13598 struct drm_atomic_state
*old_state
;
13601 old_state
= old_crtc_state
->state
;
13602 __drm_atomic_helper_crtc_destroy_state(old_crtc_state
);
13603 pipe_config
= to_intel_crtc_state(old_crtc_state
);
13604 memset(pipe_config
, 0, sizeof(*pipe_config
));
13605 pipe_config
->base
.crtc
= crtc
;
13606 pipe_config
->base
.state
= old_state
;
13608 DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc
->base
.id
, crtc
->name
);
13610 active
= dev_priv
->display
.get_pipe_config(intel_crtc
, pipe_config
);
13612 /* hw state is inconsistent with the pipe quirk */
13613 if ((intel_crtc
->pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
13614 (intel_crtc
->pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
13615 active
= new_crtc_state
->active
;
13617 I915_STATE_WARN(new_crtc_state
->active
!= active
,
13618 "crtc active state doesn't match with hw state "
13619 "(expected %i, found %i)\n", new_crtc_state
->active
, active
);
13621 I915_STATE_WARN(intel_crtc
->active
!= new_crtc_state
->active
,
13622 "transitional active state does not match atomic hw state "
13623 "(expected %i, found %i)\n", new_crtc_state
->active
, intel_crtc
->active
);
13625 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
13628 active
= encoder
->get_hw_state(encoder
, &pipe
);
13629 I915_STATE_WARN(active
!= new_crtc_state
->active
,
13630 "[ENCODER:%i] active %i with crtc active %i\n",
13631 encoder
->base
.base
.id
, active
, new_crtc_state
->active
);
13633 I915_STATE_WARN(active
&& intel_crtc
->pipe
!= pipe
,
13634 "Encoder connected to wrong pipe %c\n",
13638 pipe_config
->output_types
|= 1 << encoder
->type
;
13639 encoder
->get_config(encoder
, pipe_config
);
13643 if (!new_crtc_state
->active
)
13646 intel_pipe_config_sanity_check(dev_priv
, pipe_config
);
13648 sw_config
= to_intel_crtc_state(crtc
->state
);
13649 if (!intel_pipe_config_compare(dev_priv
, sw_config
,
13650 pipe_config
, false)) {
13651 I915_STATE_WARN(1, "pipe state doesn't match!\n");
13652 intel_dump_pipe_config(intel_crtc
, pipe_config
,
13654 intel_dump_pipe_config(intel_crtc
, sw_config
,
13660 verify_single_dpll_state(struct drm_i915_private
*dev_priv
,
13661 struct intel_shared_dpll
*pll
,
13662 struct drm_crtc
*crtc
,
13663 struct drm_crtc_state
*new_state
)
13665 struct intel_dpll_hw_state dpll_hw_state
;
13666 unsigned crtc_mask
;
13669 memset(&dpll_hw_state
, 0, sizeof(dpll_hw_state
));
13671 DRM_DEBUG_KMS("%s\n", pll
->name
);
13673 active
= pll
->funcs
.get_hw_state(dev_priv
, pll
, &dpll_hw_state
);
13675 if (!(pll
->flags
& INTEL_DPLL_ALWAYS_ON
)) {
13676 I915_STATE_WARN(!pll
->on
&& pll
->active_mask
,
13677 "pll in active use but not on in sw tracking\n");
13678 I915_STATE_WARN(pll
->on
&& !pll
->active_mask
,
13679 "pll is on but not used by any active crtc\n");
13680 I915_STATE_WARN(pll
->on
!= active
,
13681 "pll on state mismatch (expected %i, found %i)\n",
13686 I915_STATE_WARN(pll
->active_mask
& ~pll
->config
.crtc_mask
,
13687 "more active pll users than references: %x vs %x\n",
13688 pll
->active_mask
, pll
->config
.crtc_mask
);
13693 crtc_mask
= 1 << drm_crtc_index(crtc
);
13695 if (new_state
->active
)
13696 I915_STATE_WARN(!(pll
->active_mask
& crtc_mask
),
13697 "pll active mismatch (expected pipe %c in active mask 0x%02x)\n",
13698 pipe_name(drm_crtc_index(crtc
)), pll
->active_mask
);
13700 I915_STATE_WARN(pll
->active_mask
& crtc_mask
,
13701 "pll active mismatch (didn't expect pipe %c in active mask 0x%02x)\n",
13702 pipe_name(drm_crtc_index(crtc
)), pll
->active_mask
);
13704 I915_STATE_WARN(!(pll
->config
.crtc_mask
& crtc_mask
),
13705 "pll enabled crtcs mismatch (expected 0x%x in 0x%02x)\n",
13706 crtc_mask
, pll
->config
.crtc_mask
);
13708 I915_STATE_WARN(pll
->on
&& memcmp(&pll
->config
.hw_state
,
13710 sizeof(dpll_hw_state
)),
13711 "pll hw state mismatch\n");
13715 verify_shared_dpll_state(struct drm_device
*dev
, struct drm_crtc
*crtc
,
13716 struct drm_crtc_state
*old_crtc_state
,
13717 struct drm_crtc_state
*new_crtc_state
)
13719 struct drm_i915_private
*dev_priv
= to_i915(dev
);
13720 struct intel_crtc_state
*old_state
= to_intel_crtc_state(old_crtc_state
);
13721 struct intel_crtc_state
*new_state
= to_intel_crtc_state(new_crtc_state
);
13723 if (new_state
->shared_dpll
)
13724 verify_single_dpll_state(dev_priv
, new_state
->shared_dpll
, crtc
, new_crtc_state
);
13726 if (old_state
->shared_dpll
&&
13727 old_state
->shared_dpll
!= new_state
->shared_dpll
) {
13728 unsigned crtc_mask
= 1 << drm_crtc_index(crtc
);
13729 struct intel_shared_dpll
*pll
= old_state
->shared_dpll
;
13731 I915_STATE_WARN(pll
->active_mask
& crtc_mask
,
13732 "pll active mismatch (didn't expect pipe %c in active mask)\n",
13733 pipe_name(drm_crtc_index(crtc
)));
13734 I915_STATE_WARN(pll
->config
.crtc_mask
& crtc_mask
,
13735 "pll enabled crtcs mismatch (found %x in enabled mask)\n",
13736 pipe_name(drm_crtc_index(crtc
)));
13741 intel_modeset_verify_crtc(struct drm_crtc
*crtc
,
13742 struct drm_atomic_state
*state
,
13743 struct drm_crtc_state
*old_state
,
13744 struct drm_crtc_state
*new_state
)
13746 if (!needs_modeset(new_state
) &&
13747 !to_intel_crtc_state(new_state
)->update_pipe
)
13750 verify_wm_state(crtc
, new_state
);
13751 verify_connector_state(crtc
->dev
, state
, crtc
);
13752 verify_crtc_state(crtc
, old_state
, new_state
);
13753 verify_shared_dpll_state(crtc
->dev
, crtc
, old_state
, new_state
);
13757 verify_disabled_dpll_state(struct drm_device
*dev
)
13759 struct drm_i915_private
*dev_priv
= to_i915(dev
);
13762 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++)
13763 verify_single_dpll_state(dev_priv
, &dev_priv
->shared_dplls
[i
], NULL
, NULL
);
13767 intel_modeset_verify_disabled(struct drm_device
*dev
,
13768 struct drm_atomic_state
*state
)
13770 verify_encoder_state(dev
);
13771 verify_connector_state(dev
, state
, NULL
);
13772 verify_disabled_dpll_state(dev
);
13775 static void update_scanline_offset(struct intel_crtc
*crtc
)
13777 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
13780 * The scanline counter increments at the leading edge of hsync.
13782 * On most platforms it starts counting from vtotal-1 on the
13783 * first active line. That means the scanline counter value is
13784 * always one less than what we would expect. Ie. just after
13785 * start of vblank, which also occurs at start of hsync (on the
13786 * last active line), the scanline counter will read vblank_start-1.
13788 * On gen2 the scanline counter starts counting from 1 instead
13789 * of vtotal-1, so we have to subtract one (or rather add vtotal-1
13790 * to keep the value positive), instead of adding one.
13792 * On HSW+ the behaviour of the scanline counter depends on the output
13793 * type. For DP ports it behaves like most other platforms, but on HDMI
13794 * there's an extra 1 line difference. So we need to add two instead of
13795 * one to the value.
13797 if (IS_GEN2(dev_priv
)) {
13798 const struct drm_display_mode
*adjusted_mode
= &crtc
->config
->base
.adjusted_mode
;
13801 vtotal
= adjusted_mode
->crtc_vtotal
;
13802 if (adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
)
13805 crtc
->scanline_offset
= vtotal
- 1;
13806 } else if (HAS_DDI(dev_priv
) &&
13807 intel_crtc_has_type(crtc
->config
, INTEL_OUTPUT_HDMI
)) {
13808 crtc
->scanline_offset
= 2;
13810 crtc
->scanline_offset
= 1;
13813 static void intel_modeset_clear_plls(struct drm_atomic_state
*state
)
13815 struct drm_device
*dev
= state
->dev
;
13816 struct drm_i915_private
*dev_priv
= to_i915(dev
);
13817 struct intel_shared_dpll_config
*shared_dpll
= NULL
;
13818 struct drm_crtc
*crtc
;
13819 struct drm_crtc_state
*crtc_state
;
13822 if (!dev_priv
->display
.crtc_compute_clock
)
13825 for_each_crtc_in_state(state
, crtc
, crtc_state
, i
) {
13826 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
13827 struct intel_shared_dpll
*old_dpll
=
13828 to_intel_crtc_state(crtc
->state
)->shared_dpll
;
13830 if (!needs_modeset(crtc_state
))
13833 to_intel_crtc_state(crtc_state
)->shared_dpll
= NULL
;
13839 shared_dpll
= intel_atomic_get_shared_dpll_state(state
);
13841 intel_shared_dpll_config_put(shared_dpll
, old_dpll
, intel_crtc
);
13846 * This implements the workaround described in the "notes" section of the mode
13847 * set sequence documentation. When going from no pipes or single pipe to
13848 * multiple pipes, and planes are enabled after the pipe, we need to wait at
13849 * least 2 vblanks on the first pipe before enabling planes on the second pipe.
13851 static int haswell_mode_set_planes_workaround(struct drm_atomic_state
*state
)
13853 struct drm_crtc_state
*crtc_state
;
13854 struct intel_crtc
*intel_crtc
;
13855 struct drm_crtc
*crtc
;
13856 struct intel_crtc_state
*first_crtc_state
= NULL
;
13857 struct intel_crtc_state
*other_crtc_state
= NULL
;
13858 enum pipe first_pipe
= INVALID_PIPE
, enabled_pipe
= INVALID_PIPE
;
13861 /* look at all crtc's that are going to be enabled in during modeset */
13862 for_each_crtc_in_state(state
, crtc
, crtc_state
, i
) {
13863 intel_crtc
= to_intel_crtc(crtc
);
13865 if (!crtc_state
->active
|| !needs_modeset(crtc_state
))
13868 if (first_crtc_state
) {
13869 other_crtc_state
= to_intel_crtc_state(crtc_state
);
13872 first_crtc_state
= to_intel_crtc_state(crtc_state
);
13873 first_pipe
= intel_crtc
->pipe
;
13877 /* No workaround needed? */
13878 if (!first_crtc_state
)
13881 /* w/a possibly needed, check how many crtc's are already enabled. */
13882 for_each_intel_crtc(state
->dev
, intel_crtc
) {
13883 struct intel_crtc_state
*pipe_config
;
13885 pipe_config
= intel_atomic_get_crtc_state(state
, intel_crtc
);
13886 if (IS_ERR(pipe_config
))
13887 return PTR_ERR(pipe_config
);
13889 pipe_config
->hsw_workaround_pipe
= INVALID_PIPE
;
13891 if (!pipe_config
->base
.active
||
13892 needs_modeset(&pipe_config
->base
))
13895 /* 2 or more enabled crtcs means no need for w/a */
13896 if (enabled_pipe
!= INVALID_PIPE
)
13899 enabled_pipe
= intel_crtc
->pipe
;
13902 if (enabled_pipe
!= INVALID_PIPE
)
13903 first_crtc_state
->hsw_workaround_pipe
= enabled_pipe
;
13904 else if (other_crtc_state
)
13905 other_crtc_state
->hsw_workaround_pipe
= first_pipe
;
13910 static int intel_lock_all_pipes(struct drm_atomic_state
*state
)
13912 struct drm_crtc
*crtc
;
13914 /* Add all pipes to the state */
13915 for_each_crtc(state
->dev
, crtc
) {
13916 struct drm_crtc_state
*crtc_state
;
13918 crtc_state
= drm_atomic_get_crtc_state(state
, crtc
);
13919 if (IS_ERR(crtc_state
))
13920 return PTR_ERR(crtc_state
);
13926 static int intel_modeset_all_pipes(struct drm_atomic_state
*state
)
13928 struct drm_crtc
*crtc
;
13931 * Add all pipes to the state, and force
13932 * a modeset on all the active ones.
13934 for_each_crtc(state
->dev
, crtc
) {
13935 struct drm_crtc_state
*crtc_state
;
13938 crtc_state
= drm_atomic_get_crtc_state(state
, crtc
);
13939 if (IS_ERR(crtc_state
))
13940 return PTR_ERR(crtc_state
);
13942 if (!crtc_state
->active
|| needs_modeset(crtc_state
))
13945 crtc_state
->mode_changed
= true;
13947 ret
= drm_atomic_add_affected_connectors(state
, crtc
);
13951 ret
= drm_atomic_add_affected_planes(state
, crtc
);
13959 static int intel_modeset_checks(struct drm_atomic_state
*state
)
13961 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
13962 struct drm_i915_private
*dev_priv
= to_i915(state
->dev
);
13963 struct drm_crtc
*crtc
;
13964 struct drm_crtc_state
*crtc_state
;
13967 if (!check_digital_port_conflicts(state
)) {
13968 DRM_DEBUG_KMS("rejecting conflicting digital port configuration\n");
13972 intel_state
->modeset
= true;
13973 intel_state
->active_crtcs
= dev_priv
->active_crtcs
;
13975 for_each_crtc_in_state(state
, crtc
, crtc_state
, i
) {
13976 if (crtc_state
->active
)
13977 intel_state
->active_crtcs
|= 1 << i
;
13979 intel_state
->active_crtcs
&= ~(1 << i
);
13981 if (crtc_state
->active
!= crtc
->state
->active
)
13982 intel_state
->active_pipe_changes
|= drm_crtc_mask(crtc
);
13986 * See if the config requires any additional preparation, e.g.
13987 * to adjust global state with pipes off. We need to do this
13988 * here so we can get the modeset_pipe updated config for the new
13989 * mode set on this crtc. For other crtcs we need to use the
13990 * adjusted_mode bits in the crtc directly.
13992 if (dev_priv
->display
.modeset_calc_cdclk
) {
13993 if (!intel_state
->cdclk_pll_vco
)
13994 intel_state
->cdclk_pll_vco
= dev_priv
->cdclk_pll
.vco
;
13995 if (!intel_state
->cdclk_pll_vco
)
13996 intel_state
->cdclk_pll_vco
= dev_priv
->skl_preferred_vco_freq
;
13998 ret
= dev_priv
->display
.modeset_calc_cdclk(state
);
14003 * Writes to dev_priv->atomic_cdclk_freq must protected by
14004 * holding all the crtc locks, even if we don't end up
14005 * touching the hardware
14007 if (intel_state
->cdclk
!= dev_priv
->atomic_cdclk_freq
) {
14008 ret
= intel_lock_all_pipes(state
);
14013 /* All pipes must be switched off while we change the cdclk. */
14014 if (intel_state
->dev_cdclk
!= dev_priv
->cdclk_freq
||
14015 intel_state
->cdclk_pll_vco
!= dev_priv
->cdclk_pll
.vco
) {
14016 ret
= intel_modeset_all_pipes(state
);
14021 DRM_DEBUG_KMS("New cdclk calculated to be atomic %u, actual %u\n",
14022 intel_state
->cdclk
, intel_state
->dev_cdclk
);
14024 to_intel_atomic_state(state
)->cdclk
= dev_priv
->atomic_cdclk_freq
;
14027 intel_modeset_clear_plls(state
);
14029 if (IS_HASWELL(dev_priv
))
14030 return haswell_mode_set_planes_workaround(state
);
14036 * Handle calculation of various watermark data at the end of the atomic check
14037 * phase. The code here should be run after the per-crtc and per-plane 'check'
14038 * handlers to ensure that all derived state has been updated.
14040 static int calc_watermark_data(struct drm_atomic_state
*state
)
14042 struct drm_device
*dev
= state
->dev
;
14043 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14045 /* Is there platform-specific watermark information to calculate? */
14046 if (dev_priv
->display
.compute_global_watermarks
)
14047 return dev_priv
->display
.compute_global_watermarks(state
);
14053 * intel_atomic_check - validate state object
14055 * @state: state to validate
14057 static int intel_atomic_check(struct drm_device
*dev
,
14058 struct drm_atomic_state
*state
)
14060 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14061 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
14062 struct drm_crtc
*crtc
;
14063 struct drm_crtc_state
*crtc_state
;
14065 bool any_ms
= false;
14067 ret
= drm_atomic_helper_check_modeset(dev
, state
);
14071 for_each_crtc_in_state(state
, crtc
, crtc_state
, i
) {
14072 struct intel_crtc_state
*pipe_config
=
14073 to_intel_crtc_state(crtc_state
);
14075 /* Catch I915_MODE_FLAG_INHERITED */
14076 if (crtc_state
->mode
.private_flags
!= crtc
->state
->mode
.private_flags
)
14077 crtc_state
->mode_changed
= true;
14079 if (!needs_modeset(crtc_state
))
14082 if (!crtc_state
->enable
) {
14087 /* FIXME: For only active_changed we shouldn't need to do any
14088 * state recomputation at all. */
14090 ret
= drm_atomic_add_affected_connectors(state
, crtc
);
14094 ret
= intel_modeset_pipe_config(crtc
, pipe_config
);
14096 intel_dump_pipe_config(to_intel_crtc(crtc
),
14097 pipe_config
, "[failed]");
14101 if (i915
.fastboot
&&
14102 intel_pipe_config_compare(dev_priv
,
14103 to_intel_crtc_state(crtc
->state
),
14104 pipe_config
, true)) {
14105 crtc_state
->mode_changed
= false;
14106 to_intel_crtc_state(crtc_state
)->update_pipe
= true;
14109 if (needs_modeset(crtc_state
))
14112 ret
= drm_atomic_add_affected_planes(state
, crtc
);
14116 intel_dump_pipe_config(to_intel_crtc(crtc
), pipe_config
,
14117 needs_modeset(crtc_state
) ?
14118 "[modeset]" : "[fastset]");
14122 ret
= intel_modeset_checks(state
);
14127 intel_state
->cdclk
= dev_priv
->atomic_cdclk_freq
;
14130 ret
= drm_atomic_helper_check_planes(dev
, state
);
14134 intel_fbc_choose_crtc(dev_priv
, state
);
14135 return calc_watermark_data(state
);
14138 static int intel_atomic_prepare_commit(struct drm_device
*dev
,
14139 struct drm_atomic_state
*state
)
14141 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14142 struct drm_crtc_state
*crtc_state
;
14143 struct drm_crtc
*crtc
;
14146 for_each_crtc_in_state(state
, crtc
, crtc_state
, i
) {
14147 if (state
->legacy_cursor_update
)
14150 ret
= intel_crtc_wait_for_pending_flips(crtc
);
14154 if (atomic_read(&to_intel_crtc(crtc
)->unpin_work_count
) >= 2)
14155 flush_workqueue(dev_priv
->wq
);
14158 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
14162 ret
= drm_atomic_helper_prepare_planes(dev
, state
);
14163 mutex_unlock(&dev
->struct_mutex
);
14168 u32
intel_crtc_get_vblank_counter(struct intel_crtc
*crtc
)
14170 struct drm_device
*dev
= crtc
->base
.dev
;
14172 if (!dev
->max_vblank_count
)
14173 return drm_accurate_vblank_count(&crtc
->base
);
14175 return dev
->driver
->get_vblank_counter(dev
, crtc
->pipe
);
14178 static void intel_atomic_wait_for_vblanks(struct drm_device
*dev
,
14179 struct drm_i915_private
*dev_priv
,
14180 unsigned crtc_mask
)
14182 unsigned last_vblank_count
[I915_MAX_PIPES
];
14189 for_each_pipe(dev_priv
, pipe
) {
14190 struct intel_crtc
*crtc
= intel_get_crtc_for_pipe(dev_priv
,
14193 if (!((1 << pipe
) & crtc_mask
))
14196 ret
= drm_crtc_vblank_get(&crtc
->base
);
14197 if (WARN_ON(ret
!= 0)) {
14198 crtc_mask
&= ~(1 << pipe
);
14202 last_vblank_count
[pipe
] = drm_crtc_vblank_count(&crtc
->base
);
14205 for_each_pipe(dev_priv
, pipe
) {
14206 struct intel_crtc
*crtc
= intel_get_crtc_for_pipe(dev_priv
,
14210 if (!((1 << pipe
) & crtc_mask
))
14213 lret
= wait_event_timeout(dev
->vblank
[pipe
].queue
,
14214 last_vblank_count
[pipe
] !=
14215 drm_crtc_vblank_count(&crtc
->base
),
14216 msecs_to_jiffies(50));
14218 WARN(!lret
, "pipe %c vblank wait timed out\n", pipe_name(pipe
));
14220 drm_crtc_vblank_put(&crtc
->base
);
14224 static bool needs_vblank_wait(struct intel_crtc_state
*crtc_state
)
14226 /* fb updated, need to unpin old fb */
14227 if (crtc_state
->fb_changed
)
14230 /* wm changes, need vblank before final wm's */
14231 if (crtc_state
->update_wm_post
)
14235 * cxsr is re-enabled after vblank.
14236 * This is already handled by crtc_state->update_wm_post,
14237 * but added for clarity.
14239 if (crtc_state
->disable_cxsr
)
14245 static void intel_update_crtc(struct drm_crtc
*crtc
,
14246 struct drm_atomic_state
*state
,
14247 struct drm_crtc_state
*old_crtc_state
,
14248 unsigned int *crtc_vblank_mask
)
14250 struct drm_device
*dev
= crtc
->dev
;
14251 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14252 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
14253 struct intel_crtc_state
*pipe_config
= to_intel_crtc_state(crtc
->state
);
14254 bool modeset
= needs_modeset(crtc
->state
);
14257 update_scanline_offset(intel_crtc
);
14258 dev_priv
->display
.crtc_enable(pipe_config
, state
);
14260 intel_pre_plane_update(to_intel_crtc_state(old_crtc_state
));
14263 if (drm_atomic_get_existing_plane_state(state
, crtc
->primary
)) {
14265 intel_crtc
, pipe_config
,
14266 to_intel_plane_state(crtc
->primary
->state
));
14269 drm_atomic_helper_commit_planes_on_crtc(old_crtc_state
);
14271 if (needs_vblank_wait(pipe_config
))
14272 *crtc_vblank_mask
|= drm_crtc_mask(crtc
);
14275 static void intel_update_crtcs(struct drm_atomic_state
*state
,
14276 unsigned int *crtc_vblank_mask
)
14278 struct drm_crtc
*crtc
;
14279 struct drm_crtc_state
*old_crtc_state
;
14282 for_each_crtc_in_state(state
, crtc
, old_crtc_state
, i
) {
14283 if (!crtc
->state
->active
)
14286 intel_update_crtc(crtc
, state
, old_crtc_state
,
14291 static void skl_update_crtcs(struct drm_atomic_state
*state
,
14292 unsigned int *crtc_vblank_mask
)
14294 struct drm_i915_private
*dev_priv
= to_i915(state
->dev
);
14295 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
14296 struct drm_crtc
*crtc
;
14297 struct intel_crtc
*intel_crtc
;
14298 struct drm_crtc_state
*old_crtc_state
;
14299 struct intel_crtc_state
*cstate
;
14300 unsigned int updated
= 0;
14305 const struct skl_ddb_entry
*entries
[I915_MAX_PIPES
] = {};
14307 for_each_crtc_in_state(state
, crtc
, old_crtc_state
, i
)
14308 /* ignore allocations for crtc's that have been turned off. */
14309 if (crtc
->state
->active
)
14310 entries
[i
] = &to_intel_crtc_state(old_crtc_state
)->wm
.skl
.ddb
;
14313 * Whenever the number of active pipes changes, we need to make sure we
14314 * update the pipes in the right order so that their ddb allocations
14315 * never overlap with eachother inbetween CRTC updates. Otherwise we'll
14316 * cause pipe underruns and other bad stuff.
14321 for_each_crtc_in_state(state
, crtc
, old_crtc_state
, i
) {
14322 bool vbl_wait
= false;
14323 unsigned int cmask
= drm_crtc_mask(crtc
);
14325 intel_crtc
= to_intel_crtc(crtc
);
14326 cstate
= to_intel_crtc_state(crtc
->state
);
14327 pipe
= intel_crtc
->pipe
;
14329 if (updated
& cmask
|| !cstate
->base
.active
)
14332 if (skl_ddb_allocation_overlaps(entries
, &cstate
->wm
.skl
.ddb
, i
))
14336 entries
[i
] = &cstate
->wm
.skl
.ddb
;
14339 * If this is an already active pipe, it's DDB changed,
14340 * and this isn't the last pipe that needs updating
14341 * then we need to wait for a vblank to pass for the
14342 * new ddb allocation to take effect.
14344 if (!skl_ddb_entry_equal(&cstate
->wm
.skl
.ddb
,
14345 &to_intel_crtc_state(old_crtc_state
)->wm
.skl
.ddb
) &&
14346 !crtc
->state
->active_changed
&&
14347 intel_state
->wm_results
.dirty_pipes
!= updated
)
14350 intel_update_crtc(crtc
, state
, old_crtc_state
,
14354 intel_wait_for_vblank(dev_priv
, pipe
);
14358 } while (progress
);
14361 static void intel_atomic_commit_tail(struct drm_atomic_state
*state
)
14363 struct drm_device
*dev
= state
->dev
;
14364 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
14365 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14366 struct drm_crtc_state
*old_crtc_state
;
14367 struct drm_crtc
*crtc
;
14368 struct intel_crtc_state
*intel_cstate
;
14369 bool hw_check
= intel_state
->modeset
;
14370 unsigned long put_domains
[I915_MAX_PIPES
] = {};
14371 unsigned crtc_vblank_mask
= 0;
14374 drm_atomic_helper_wait_for_dependencies(state
);
14376 if (intel_state
->modeset
)
14377 intel_display_power_get(dev_priv
, POWER_DOMAIN_MODESET
);
14379 for_each_crtc_in_state(state
, crtc
, old_crtc_state
, i
) {
14380 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
14382 if (needs_modeset(crtc
->state
) ||
14383 to_intel_crtc_state(crtc
->state
)->update_pipe
) {
14386 put_domains
[to_intel_crtc(crtc
)->pipe
] =
14387 modeset_get_crtc_power_domains(crtc
,
14388 to_intel_crtc_state(crtc
->state
));
14391 if (!needs_modeset(crtc
->state
))
14394 intel_pre_plane_update(to_intel_crtc_state(old_crtc_state
));
14396 if (old_crtc_state
->active
) {
14397 intel_crtc_disable_planes(crtc
, old_crtc_state
->plane_mask
);
14398 dev_priv
->display
.crtc_disable(to_intel_crtc_state(old_crtc_state
), state
);
14399 intel_crtc
->active
= false;
14400 intel_fbc_disable(intel_crtc
);
14401 intel_disable_shared_dpll(intel_crtc
);
14404 * Underruns don't always raise
14405 * interrupts, so check manually.
14407 intel_check_cpu_fifo_underruns(dev_priv
);
14408 intel_check_pch_fifo_underruns(dev_priv
);
14410 if (!crtc
->state
->active
) {
14412 * Make sure we don't call initial_watermarks
14413 * for ILK-style watermark updates.
14415 if (dev_priv
->display
.atomic_update_watermarks
)
14416 dev_priv
->display
.initial_watermarks(intel_state
,
14417 to_intel_crtc_state(crtc
->state
));
14419 intel_update_watermarks(intel_crtc
);
14424 /* Only after disabling all output pipelines that will be changed can we
14425 * update the the output configuration. */
14426 intel_modeset_update_crtc_state(state
);
14428 if (intel_state
->modeset
) {
14429 drm_atomic_helper_update_legacy_modeset_state(state
->dev
, state
);
14431 if (dev_priv
->display
.modeset_commit_cdclk
&&
14432 (intel_state
->dev_cdclk
!= dev_priv
->cdclk_freq
||
14433 intel_state
->cdclk_pll_vco
!= dev_priv
->cdclk_pll
.vco
))
14434 dev_priv
->display
.modeset_commit_cdclk(state
);
14437 * SKL workaround: bspec recommends we disable the SAGV when we
14438 * have more then one pipe enabled
14440 if (!intel_can_enable_sagv(state
))
14441 intel_disable_sagv(dev_priv
);
14443 intel_modeset_verify_disabled(dev
, state
);
14446 /* Complete the events for pipes that have now been disabled */
14447 for_each_crtc_in_state(state
, crtc
, old_crtc_state
, i
) {
14448 bool modeset
= needs_modeset(crtc
->state
);
14450 /* Complete events for now disable pipes here. */
14451 if (modeset
&& !crtc
->state
->active
&& crtc
->state
->event
) {
14452 spin_lock_irq(&dev
->event_lock
);
14453 drm_crtc_send_vblank_event(crtc
, crtc
->state
->event
);
14454 spin_unlock_irq(&dev
->event_lock
);
14456 crtc
->state
->event
= NULL
;
14460 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
14461 dev_priv
->display
.update_crtcs(state
, &crtc_vblank_mask
);
14463 /* FIXME: We should call drm_atomic_helper_commit_hw_done() here
14464 * already, but still need the state for the delayed optimization. To
14466 * - wrap the optimization/post_plane_update stuff into a per-crtc work.
14467 * - schedule that vblank worker _before_ calling hw_done
14468 * - at the start of commit_tail, cancel it _synchrously
14469 * - switch over to the vblank wait helper in the core after that since
14470 * we don't need out special handling any more.
14472 if (!state
->legacy_cursor_update
)
14473 intel_atomic_wait_for_vblanks(dev
, dev_priv
, crtc_vblank_mask
);
14476 * Now that the vblank has passed, we can go ahead and program the
14477 * optimal watermarks on platforms that need two-step watermark
14480 * TODO: Move this (and other cleanup) to an async worker eventually.
14482 for_each_crtc_in_state(state
, crtc
, old_crtc_state
, i
) {
14483 intel_cstate
= to_intel_crtc_state(crtc
->state
);
14485 if (dev_priv
->display
.optimize_watermarks
)
14486 dev_priv
->display
.optimize_watermarks(intel_state
,
14490 for_each_crtc_in_state(state
, crtc
, old_crtc_state
, i
) {
14491 intel_post_plane_update(to_intel_crtc_state(old_crtc_state
));
14493 if (put_domains
[i
])
14494 modeset_put_power_domains(dev_priv
, put_domains
[i
]);
14496 intel_modeset_verify_crtc(crtc
, state
, old_crtc_state
, crtc
->state
);
14499 if (intel_state
->modeset
&& intel_can_enable_sagv(state
))
14500 intel_enable_sagv(dev_priv
);
14502 drm_atomic_helper_commit_hw_done(state
);
14504 if (intel_state
->modeset
)
14505 intel_display_power_put(dev_priv
, POWER_DOMAIN_MODESET
);
14507 mutex_lock(&dev
->struct_mutex
);
14508 drm_atomic_helper_cleanup_planes(dev
, state
);
14509 mutex_unlock(&dev
->struct_mutex
);
14511 drm_atomic_helper_commit_cleanup_done(state
);
14513 drm_atomic_state_put(state
);
14515 /* As one of the primary mmio accessors, KMS has a high likelihood
14516 * of triggering bugs in unclaimed access. After we finish
14517 * modesetting, see if an error has been flagged, and if so
14518 * enable debugging for the next modeset - and hope we catch
14521 * XXX note that we assume display power is on at this point.
14522 * This might hold true now but we need to add pm helper to check
14523 * unclaimed only when the hardware is on, as atomic commits
14524 * can happen also when the device is completely off.
14526 intel_uncore_arm_unclaimed_mmio_detection(dev_priv
);
14529 static void intel_atomic_commit_work(struct work_struct
*work
)
14531 struct drm_atomic_state
*state
=
14532 container_of(work
, struct drm_atomic_state
, commit_work
);
14534 intel_atomic_commit_tail(state
);
14537 static int __i915_sw_fence_call
14538 intel_atomic_commit_ready(struct i915_sw_fence
*fence
,
14539 enum i915_sw_fence_notify notify
)
14541 struct intel_atomic_state
*state
=
14542 container_of(fence
, struct intel_atomic_state
, commit_ready
);
14545 case FENCE_COMPLETE
:
14546 if (state
->base
.commit_work
.func
)
14547 queue_work(system_unbound_wq
, &state
->base
.commit_work
);
14551 drm_atomic_state_put(&state
->base
);
14555 return NOTIFY_DONE
;
14558 static void intel_atomic_track_fbs(struct drm_atomic_state
*state
)
14560 struct drm_plane_state
*old_plane_state
;
14561 struct drm_plane
*plane
;
14564 for_each_plane_in_state(state
, plane
, old_plane_state
, i
)
14565 i915_gem_track_fb(intel_fb_obj(old_plane_state
->fb
),
14566 intel_fb_obj(plane
->state
->fb
),
14567 to_intel_plane(plane
)->frontbuffer_bit
);
14571 * intel_atomic_commit - commit validated state object
14573 * @state: the top-level driver state object
14574 * @nonblock: nonblocking commit
14576 * This function commits a top-level state object that has been validated
14577 * with drm_atomic_helper_check().
14580 * Zero for success or -errno.
14582 static int intel_atomic_commit(struct drm_device
*dev
,
14583 struct drm_atomic_state
*state
,
14586 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
14587 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14590 ret
= drm_atomic_helper_setup_commit(state
, nonblock
);
14594 drm_atomic_state_get(state
);
14595 i915_sw_fence_init(&intel_state
->commit_ready
,
14596 intel_atomic_commit_ready
);
14598 ret
= intel_atomic_prepare_commit(dev
, state
);
14600 DRM_DEBUG_ATOMIC("Preparing state failed with %i\n", ret
);
14601 i915_sw_fence_commit(&intel_state
->commit_ready
);
14605 drm_atomic_helper_swap_state(state
, true);
14606 dev_priv
->wm
.distrust_bios_wm
= false;
14607 intel_shared_dpll_commit(state
);
14608 intel_atomic_track_fbs(state
);
14610 if (intel_state
->modeset
) {
14611 memcpy(dev_priv
->min_pixclk
, intel_state
->min_pixclk
,
14612 sizeof(intel_state
->min_pixclk
));
14613 dev_priv
->active_crtcs
= intel_state
->active_crtcs
;
14614 dev_priv
->atomic_cdclk_freq
= intel_state
->cdclk
;
14617 drm_atomic_state_get(state
);
14618 INIT_WORK(&state
->commit_work
,
14619 nonblock
? intel_atomic_commit_work
: NULL
);
14621 i915_sw_fence_commit(&intel_state
->commit_ready
);
14623 i915_sw_fence_wait(&intel_state
->commit_ready
);
14624 intel_atomic_commit_tail(state
);
14630 void intel_crtc_restore_mode(struct drm_crtc
*crtc
)
14632 struct drm_device
*dev
= crtc
->dev
;
14633 struct drm_atomic_state
*state
;
14634 struct drm_crtc_state
*crtc_state
;
14637 state
= drm_atomic_state_alloc(dev
);
14639 DRM_DEBUG_KMS("[CRTC:%d:%s] crtc restore failed, out of memory",
14640 crtc
->base
.id
, crtc
->name
);
14644 state
->acquire_ctx
= drm_modeset_legacy_acquire_ctx(crtc
);
14647 crtc_state
= drm_atomic_get_crtc_state(state
, crtc
);
14648 ret
= PTR_ERR_OR_ZERO(crtc_state
);
14650 if (!crtc_state
->active
)
14653 crtc_state
->mode_changed
= true;
14654 ret
= drm_atomic_commit(state
);
14657 if (ret
== -EDEADLK
) {
14658 drm_atomic_state_clear(state
);
14659 drm_modeset_backoff(state
->acquire_ctx
);
14664 drm_atomic_state_put(state
);
14668 * FIXME: Remove this once i915 is fully DRIVER_ATOMIC by calling
14669 * drm_atomic_helper_legacy_gamma_set() directly.
14671 static int intel_atomic_legacy_gamma_set(struct drm_crtc
*crtc
,
14672 u16
*red
, u16
*green
, u16
*blue
,
14675 struct drm_device
*dev
= crtc
->dev
;
14676 struct drm_mode_config
*config
= &dev
->mode_config
;
14677 struct drm_crtc_state
*state
;
14680 ret
= drm_atomic_helper_legacy_gamma_set(crtc
, red
, green
, blue
, size
);
14685 * Make sure we update the legacy properties so this works when
14686 * atomic is not enabled.
14689 state
= crtc
->state
;
14691 drm_object_property_set_value(&crtc
->base
,
14692 config
->degamma_lut_property
,
14693 (state
->degamma_lut
) ?
14694 state
->degamma_lut
->base
.id
: 0);
14696 drm_object_property_set_value(&crtc
->base
,
14697 config
->ctm_property
,
14699 state
->ctm
->base
.id
: 0);
14701 drm_object_property_set_value(&crtc
->base
,
14702 config
->gamma_lut_property
,
14703 (state
->gamma_lut
) ?
14704 state
->gamma_lut
->base
.id
: 0);
14709 static const struct drm_crtc_funcs intel_crtc_funcs
= {
14710 .gamma_set
= intel_atomic_legacy_gamma_set
,
14711 .set_config
= drm_atomic_helper_set_config
,
14712 .set_property
= drm_atomic_helper_crtc_set_property
,
14713 .destroy
= intel_crtc_destroy
,
14714 .page_flip
= intel_crtc_page_flip
,
14715 .atomic_duplicate_state
= intel_crtc_duplicate_state
,
14716 .atomic_destroy_state
= intel_crtc_destroy_state
,
14720 * intel_prepare_plane_fb - Prepare fb for usage on plane
14721 * @plane: drm plane to prepare for
14722 * @fb: framebuffer to prepare for presentation
14724 * Prepares a framebuffer for usage on a display plane. Generally this
14725 * involves pinning the underlying object and updating the frontbuffer tracking
14726 * bits. Some older platforms need special physical address handling for
14729 * Must be called with struct_mutex held.
14731 * Returns 0 on success, negative error code on failure.
14734 intel_prepare_plane_fb(struct drm_plane
*plane
,
14735 struct drm_plane_state
*new_state
)
14737 struct intel_atomic_state
*intel_state
=
14738 to_intel_atomic_state(new_state
->state
);
14739 struct drm_i915_private
*dev_priv
= to_i915(plane
->dev
);
14740 struct drm_framebuffer
*fb
= new_state
->fb
;
14741 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
14742 struct drm_i915_gem_object
*old_obj
= intel_fb_obj(plane
->state
->fb
);
14745 if (!obj
&& !old_obj
)
14749 struct drm_crtc_state
*crtc_state
=
14750 drm_atomic_get_existing_crtc_state(new_state
->state
,
14751 plane
->state
->crtc
);
14753 /* Big Hammer, we also need to ensure that any pending
14754 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
14755 * current scanout is retired before unpinning the old
14756 * framebuffer. Note that we rely on userspace rendering
14757 * into the buffer attached to the pipe they are waiting
14758 * on. If not, userspace generates a GPU hang with IPEHR
14759 * point to the MI_WAIT_FOR_EVENT.
14761 * This should only fail upon a hung GPU, in which case we
14762 * can safely continue.
14764 if (needs_modeset(crtc_state
)) {
14765 ret
= i915_sw_fence_await_reservation(&intel_state
->commit_ready
,
14766 old_obj
->resv
, NULL
,
14774 if (new_state
->fence
) { /* explicit fencing */
14775 ret
= i915_sw_fence_await_dma_fence(&intel_state
->commit_ready
,
14777 I915_FENCE_TIMEOUT
,
14786 if (!new_state
->fence
) { /* implicit fencing */
14787 ret
= i915_sw_fence_await_reservation(&intel_state
->commit_ready
,
14789 false, I915_FENCE_TIMEOUT
,
14794 i915_gem_object_wait_priority(obj
, 0, I915_PRIORITY_DISPLAY
);
14797 if (plane
->type
== DRM_PLANE_TYPE_CURSOR
&&
14798 INTEL_INFO(dev_priv
)->cursor_needs_physical
) {
14799 int align
= IS_I830(dev_priv
) ? 16 * 1024 : 256;
14800 ret
= i915_gem_object_attach_phys(obj
, align
);
14802 DRM_DEBUG_KMS("failed to attach phys object\n");
14806 struct i915_vma
*vma
;
14808 vma
= intel_pin_and_fence_fb_obj(fb
, new_state
->rotation
);
14810 DRM_DEBUG_KMS("failed to pin object\n");
14811 return PTR_ERR(vma
);
14819 * intel_cleanup_plane_fb - Cleans up an fb after plane use
14820 * @plane: drm plane to clean up for
14821 * @fb: old framebuffer that was on plane
14823 * Cleans up a framebuffer that has just been removed from a plane.
14825 * Must be called with struct_mutex held.
14828 intel_cleanup_plane_fb(struct drm_plane
*plane
,
14829 struct drm_plane_state
*old_state
)
14831 struct drm_i915_private
*dev_priv
= to_i915(plane
->dev
);
14832 struct intel_plane_state
*old_intel_state
;
14833 struct drm_i915_gem_object
*old_obj
= intel_fb_obj(old_state
->fb
);
14834 struct drm_i915_gem_object
*obj
= intel_fb_obj(plane
->state
->fb
);
14836 old_intel_state
= to_intel_plane_state(old_state
);
14838 if (!obj
&& !old_obj
)
14841 if (old_obj
&& (plane
->type
!= DRM_PLANE_TYPE_CURSOR
||
14842 !INTEL_INFO(dev_priv
)->cursor_needs_physical
))
14843 intel_unpin_fb_obj(old_state
->fb
, old_state
->rotation
);
14847 skl_max_scale(struct intel_crtc
*intel_crtc
, struct intel_crtc_state
*crtc_state
)
14850 int crtc_clock
, cdclk
;
14852 if (!intel_crtc
|| !crtc_state
->base
.enable
)
14853 return DRM_PLANE_HELPER_NO_SCALING
;
14855 crtc_clock
= crtc_state
->base
.adjusted_mode
.crtc_clock
;
14856 cdclk
= to_intel_atomic_state(crtc_state
->base
.state
)->cdclk
;
14858 if (WARN_ON_ONCE(!crtc_clock
|| cdclk
< crtc_clock
))
14859 return DRM_PLANE_HELPER_NO_SCALING
;
14862 * skl max scale is lower of:
14863 * close to 3 but not 3, -1 is for that purpose
14867 max_scale
= min((1 << 16) * 3 - 1, (1 << 8) * ((cdclk
<< 8) / crtc_clock
));
14873 intel_check_primary_plane(struct drm_plane
*plane
,
14874 struct intel_crtc_state
*crtc_state
,
14875 struct intel_plane_state
*state
)
14877 struct drm_i915_private
*dev_priv
= to_i915(plane
->dev
);
14878 struct drm_crtc
*crtc
= state
->base
.crtc
;
14879 int min_scale
= DRM_PLANE_HELPER_NO_SCALING
;
14880 int max_scale
= DRM_PLANE_HELPER_NO_SCALING
;
14881 bool can_position
= false;
14884 if (INTEL_GEN(dev_priv
) >= 9) {
14885 /* use scaler when colorkey is not required */
14886 if (state
->ckey
.flags
== I915_SET_COLORKEY_NONE
) {
14888 max_scale
= skl_max_scale(to_intel_crtc(crtc
), crtc_state
);
14890 can_position
= true;
14893 ret
= drm_plane_helper_check_state(&state
->base
,
14895 min_scale
, max_scale
,
14896 can_position
, true);
14900 if (!state
->base
.fb
)
14903 if (INTEL_GEN(dev_priv
) >= 9) {
14904 ret
= skl_check_plane_surface(state
);
14912 static void intel_begin_crtc_commit(struct drm_crtc
*crtc
,
14913 struct drm_crtc_state
*old_crtc_state
)
14915 struct drm_device
*dev
= crtc
->dev
;
14916 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14917 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
14918 struct intel_crtc_state
*intel_cstate
=
14919 to_intel_crtc_state(crtc
->state
);
14920 struct intel_crtc_state
*old_intel_cstate
=
14921 to_intel_crtc_state(old_crtc_state
);
14922 struct intel_atomic_state
*old_intel_state
=
14923 to_intel_atomic_state(old_crtc_state
->state
);
14924 bool modeset
= needs_modeset(crtc
->state
);
14926 /* Perform vblank evasion around commit operation */
14927 intel_pipe_update_start(intel_crtc
);
14932 if (crtc
->state
->color_mgmt_changed
|| to_intel_crtc_state(crtc
->state
)->update_pipe
) {
14933 intel_color_set_csc(crtc
->state
);
14934 intel_color_load_luts(crtc
->state
);
14937 if (intel_cstate
->update_pipe
)
14938 intel_update_pipe_config(intel_crtc
, old_intel_cstate
);
14939 else if (INTEL_GEN(dev_priv
) >= 9)
14940 skl_detach_scalers(intel_crtc
);
14943 if (dev_priv
->display
.atomic_update_watermarks
)
14944 dev_priv
->display
.atomic_update_watermarks(old_intel_state
,
14948 static void intel_finish_crtc_commit(struct drm_crtc
*crtc
,
14949 struct drm_crtc_state
*old_crtc_state
)
14951 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
14953 intel_pipe_update_end(intel_crtc
, NULL
);
14957 * intel_plane_destroy - destroy a plane
14958 * @plane: plane to destroy
14960 * Common destruction function for all types of planes (primary, cursor,
14963 void intel_plane_destroy(struct drm_plane
*plane
)
14965 drm_plane_cleanup(plane
);
14966 kfree(to_intel_plane(plane
));
14969 const struct drm_plane_funcs intel_plane_funcs
= {
14970 .update_plane
= drm_atomic_helper_update_plane
,
14971 .disable_plane
= drm_atomic_helper_disable_plane
,
14972 .destroy
= intel_plane_destroy
,
14973 .set_property
= drm_atomic_helper_plane_set_property
,
14974 .atomic_get_property
= intel_plane_atomic_get_property
,
14975 .atomic_set_property
= intel_plane_atomic_set_property
,
14976 .atomic_duplicate_state
= intel_plane_duplicate_state
,
14977 .atomic_destroy_state
= intel_plane_destroy_state
,
14980 static struct intel_plane
*
14981 intel_primary_plane_create(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
14983 struct intel_plane
*primary
= NULL
;
14984 struct intel_plane_state
*state
= NULL
;
14985 const uint32_t *intel_primary_formats
;
14986 unsigned int supported_rotations
;
14987 unsigned int num_formats
;
14990 primary
= kzalloc(sizeof(*primary
), GFP_KERNEL
);
14996 state
= intel_create_plane_state(&primary
->base
);
15002 primary
->base
.state
= &state
->base
;
15004 primary
->can_scale
= false;
15005 primary
->max_downscale
= 1;
15006 if (INTEL_GEN(dev_priv
) >= 9) {
15007 primary
->can_scale
= true;
15008 state
->scaler_id
= -1;
15010 primary
->pipe
= pipe
;
15012 * On gen2/3 only plane A can do FBC, but the panel fitter and LVDS
15013 * port is hooked to pipe B. Hence we want plane A feeding pipe B.
15015 if (HAS_FBC(dev_priv
) && INTEL_GEN(dev_priv
) < 4)
15016 primary
->plane
= (enum plane
) !pipe
;
15018 primary
->plane
= (enum plane
) pipe
;
15019 primary
->id
= PLANE_PRIMARY
;
15020 primary
->frontbuffer_bit
= INTEL_FRONTBUFFER_PRIMARY(pipe
);
15021 primary
->check_plane
= intel_check_primary_plane
;
15023 if (INTEL_GEN(dev_priv
) >= 9) {
15024 intel_primary_formats
= skl_primary_formats
;
15025 num_formats
= ARRAY_SIZE(skl_primary_formats
);
15027 primary
->update_plane
= skylake_update_primary_plane
;
15028 primary
->disable_plane
= skylake_disable_primary_plane
;
15029 } else if (HAS_PCH_SPLIT(dev_priv
)) {
15030 intel_primary_formats
= i965_primary_formats
;
15031 num_formats
= ARRAY_SIZE(i965_primary_formats
);
15033 primary
->update_plane
= ironlake_update_primary_plane
;
15034 primary
->disable_plane
= i9xx_disable_primary_plane
;
15035 } else if (INTEL_GEN(dev_priv
) >= 4) {
15036 intel_primary_formats
= i965_primary_formats
;
15037 num_formats
= ARRAY_SIZE(i965_primary_formats
);
15039 primary
->update_plane
= i9xx_update_primary_plane
;
15040 primary
->disable_plane
= i9xx_disable_primary_plane
;
15042 intel_primary_formats
= i8xx_primary_formats
;
15043 num_formats
= ARRAY_SIZE(i8xx_primary_formats
);
15045 primary
->update_plane
= i9xx_update_primary_plane
;
15046 primary
->disable_plane
= i9xx_disable_primary_plane
;
15049 if (INTEL_GEN(dev_priv
) >= 9)
15050 ret
= drm_universal_plane_init(&dev_priv
->drm
, &primary
->base
,
15051 0, &intel_plane_funcs
,
15052 intel_primary_formats
, num_formats
,
15053 DRM_PLANE_TYPE_PRIMARY
,
15054 "plane 1%c", pipe_name(pipe
));
15055 else if (INTEL_GEN(dev_priv
) >= 5 || IS_G4X(dev_priv
))
15056 ret
= drm_universal_plane_init(&dev_priv
->drm
, &primary
->base
,
15057 0, &intel_plane_funcs
,
15058 intel_primary_formats
, num_formats
,
15059 DRM_PLANE_TYPE_PRIMARY
,
15060 "primary %c", pipe_name(pipe
));
15062 ret
= drm_universal_plane_init(&dev_priv
->drm
, &primary
->base
,
15063 0, &intel_plane_funcs
,
15064 intel_primary_formats
, num_formats
,
15065 DRM_PLANE_TYPE_PRIMARY
,
15066 "plane %c", plane_name(primary
->plane
));
15070 if (INTEL_GEN(dev_priv
) >= 9) {
15071 supported_rotations
=
15072 DRM_ROTATE_0
| DRM_ROTATE_90
|
15073 DRM_ROTATE_180
| DRM_ROTATE_270
;
15074 } else if (IS_CHERRYVIEW(dev_priv
) && pipe
== PIPE_B
) {
15075 supported_rotations
=
15076 DRM_ROTATE_0
| DRM_ROTATE_180
|
15078 } else if (INTEL_GEN(dev_priv
) >= 4) {
15079 supported_rotations
=
15080 DRM_ROTATE_0
| DRM_ROTATE_180
;
15082 supported_rotations
= DRM_ROTATE_0
;
15085 if (INTEL_GEN(dev_priv
) >= 4)
15086 drm_plane_create_rotation_property(&primary
->base
,
15088 supported_rotations
);
15090 drm_plane_helper_add(&primary
->base
, &intel_plane_helper_funcs
);
15098 return ERR_PTR(ret
);
15102 intel_check_cursor_plane(struct drm_plane
*plane
,
15103 struct intel_crtc_state
*crtc_state
,
15104 struct intel_plane_state
*state
)
15106 struct drm_framebuffer
*fb
= state
->base
.fb
;
15107 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
15108 enum pipe pipe
= to_intel_plane(plane
)->pipe
;
15112 ret
= drm_plane_helper_check_state(&state
->base
,
15114 DRM_PLANE_HELPER_NO_SCALING
,
15115 DRM_PLANE_HELPER_NO_SCALING
,
15120 /* if we want to turn off the cursor ignore width and height */
15124 /* Check for which cursor types we support */
15125 if (!cursor_size_ok(to_i915(plane
->dev
), state
->base
.crtc_w
,
15126 state
->base
.crtc_h
)) {
15127 DRM_DEBUG("Cursor dimension %dx%d not supported\n",
15128 state
->base
.crtc_w
, state
->base
.crtc_h
);
15132 stride
= roundup_pow_of_two(state
->base
.crtc_w
) * 4;
15133 if (obj
->base
.size
< stride
* state
->base
.crtc_h
) {
15134 DRM_DEBUG_KMS("buffer is too small\n");
15138 if (fb
->modifier
[0] != DRM_FORMAT_MOD_NONE
) {
15139 DRM_DEBUG_KMS("cursor cannot be tiled\n");
15144 * There's something wrong with the cursor on CHV pipe C.
15145 * If it straddles the left edge of the screen then
15146 * moving it away from the edge or disabling it often
15147 * results in a pipe underrun, and often that can lead to
15148 * dead pipe (constant underrun reported, and it scans
15149 * out just a solid color). To recover from that, the
15150 * display power well must be turned off and on again.
15151 * Refuse the put the cursor into that compromised position.
15153 if (IS_CHERRYVIEW(to_i915(plane
->dev
)) && pipe
== PIPE_C
&&
15154 state
->base
.visible
&& state
->base
.crtc_x
< 0) {
15155 DRM_DEBUG_KMS("CHV cursor C not allowed to straddle the left screen edge\n");
15163 intel_disable_cursor_plane(struct drm_plane
*plane
,
15164 struct drm_crtc
*crtc
)
15166 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
15168 intel_crtc
->cursor_addr
= 0;
15169 intel_crtc_update_cursor(crtc
, NULL
);
15173 intel_update_cursor_plane(struct drm_plane
*plane
,
15174 const struct intel_crtc_state
*crtc_state
,
15175 const struct intel_plane_state
*state
)
15177 struct drm_crtc
*crtc
= crtc_state
->base
.crtc
;
15178 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
15179 struct drm_i915_private
*dev_priv
= to_i915(plane
->dev
);
15180 struct drm_i915_gem_object
*obj
= intel_fb_obj(state
->base
.fb
);
15185 else if (!INTEL_INFO(dev_priv
)->cursor_needs_physical
)
15186 addr
= i915_gem_object_ggtt_offset(obj
, NULL
);
15188 addr
= obj
->phys_handle
->busaddr
;
15190 intel_crtc
->cursor_addr
= addr
;
15191 intel_crtc_update_cursor(crtc
, state
);
15194 static struct intel_plane
*
15195 intel_cursor_plane_create(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
15197 struct intel_plane
*cursor
= NULL
;
15198 struct intel_plane_state
*state
= NULL
;
15201 cursor
= kzalloc(sizeof(*cursor
), GFP_KERNEL
);
15207 state
= intel_create_plane_state(&cursor
->base
);
15213 cursor
->base
.state
= &state
->base
;
15215 cursor
->can_scale
= false;
15216 cursor
->max_downscale
= 1;
15217 cursor
->pipe
= pipe
;
15218 cursor
->plane
= pipe
;
15219 cursor
->id
= PLANE_CURSOR
;
15220 cursor
->frontbuffer_bit
= INTEL_FRONTBUFFER_CURSOR(pipe
);
15221 cursor
->check_plane
= intel_check_cursor_plane
;
15222 cursor
->update_plane
= intel_update_cursor_plane
;
15223 cursor
->disable_plane
= intel_disable_cursor_plane
;
15225 ret
= drm_universal_plane_init(&dev_priv
->drm
, &cursor
->base
,
15226 0, &intel_plane_funcs
,
15227 intel_cursor_formats
,
15228 ARRAY_SIZE(intel_cursor_formats
),
15229 DRM_PLANE_TYPE_CURSOR
,
15230 "cursor %c", pipe_name(pipe
));
15234 if (INTEL_GEN(dev_priv
) >= 4)
15235 drm_plane_create_rotation_property(&cursor
->base
,
15240 if (INTEL_GEN(dev_priv
) >= 9)
15241 state
->scaler_id
= -1;
15243 drm_plane_helper_add(&cursor
->base
, &intel_plane_helper_funcs
);
15251 return ERR_PTR(ret
);
15254 static void skl_init_scalers(struct drm_i915_private
*dev_priv
,
15255 struct intel_crtc
*crtc
,
15256 struct intel_crtc_state
*crtc_state
)
15258 struct intel_crtc_scaler_state
*scaler_state
=
15259 &crtc_state
->scaler_state
;
15262 for (i
= 0; i
< crtc
->num_scalers
; i
++) {
15263 struct intel_scaler
*scaler
= &scaler_state
->scalers
[i
];
15265 scaler
->in_use
= 0;
15266 scaler
->mode
= PS_SCALER_MODE_DYN
;
15269 scaler_state
->scaler_id
= -1;
15272 static int intel_crtc_init(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
15274 struct intel_crtc
*intel_crtc
;
15275 struct intel_crtc_state
*crtc_state
= NULL
;
15276 struct intel_plane
*primary
= NULL
;
15277 struct intel_plane
*cursor
= NULL
;
15280 intel_crtc
= kzalloc(sizeof(*intel_crtc
), GFP_KERNEL
);
15284 crtc_state
= kzalloc(sizeof(*crtc_state
), GFP_KERNEL
);
15289 intel_crtc
->config
= crtc_state
;
15290 intel_crtc
->base
.state
= &crtc_state
->base
;
15291 crtc_state
->base
.crtc
= &intel_crtc
->base
;
15293 /* initialize shared scalers */
15294 if (INTEL_GEN(dev_priv
) >= 9) {
15295 if (pipe
== PIPE_C
)
15296 intel_crtc
->num_scalers
= 1;
15298 intel_crtc
->num_scalers
= SKL_NUM_SCALERS
;
15300 skl_init_scalers(dev_priv
, intel_crtc
, crtc_state
);
15303 primary
= intel_primary_plane_create(dev_priv
, pipe
);
15304 if (IS_ERR(primary
)) {
15305 ret
= PTR_ERR(primary
);
15308 intel_crtc
->plane_ids_mask
|= BIT(primary
->id
);
15310 for_each_sprite(dev_priv
, pipe
, sprite
) {
15311 struct intel_plane
*plane
;
15313 plane
= intel_sprite_plane_create(dev_priv
, pipe
, sprite
);
15314 if (IS_ERR(plane
)) {
15315 ret
= PTR_ERR(plane
);
15318 intel_crtc
->plane_ids_mask
|= BIT(plane
->id
);
15321 cursor
= intel_cursor_plane_create(dev_priv
, pipe
);
15322 if (IS_ERR(cursor
)) {
15323 ret
= PTR_ERR(cursor
);
15326 intel_crtc
->plane_ids_mask
|= BIT(cursor
->id
);
15328 ret
= drm_crtc_init_with_planes(&dev_priv
->drm
, &intel_crtc
->base
,
15329 &primary
->base
, &cursor
->base
,
15331 "pipe %c", pipe_name(pipe
));
15335 intel_crtc
->pipe
= pipe
;
15336 intel_crtc
->plane
= primary
->plane
;
15338 intel_crtc
->cursor_base
= ~0;
15339 intel_crtc
->cursor_cntl
= ~0;
15340 intel_crtc
->cursor_size
= ~0;
15342 intel_crtc
->wm
.cxsr_allowed
= true;
15344 BUG_ON(pipe
>= ARRAY_SIZE(dev_priv
->plane_to_crtc_mapping
) ||
15345 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] != NULL
);
15346 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] = intel_crtc
;
15347 dev_priv
->pipe_to_crtc_mapping
[intel_crtc
->pipe
] = intel_crtc
;
15349 drm_crtc_helper_add(&intel_crtc
->base
, &intel_helper_funcs
);
15351 intel_color_init(&intel_crtc
->base
);
15353 WARN_ON(drm_crtc_index(&intel_crtc
->base
) != intel_crtc
->pipe
);
15359 * drm_mode_config_cleanup() will free up any
15360 * crtcs/planes already initialized.
15368 enum pipe
intel_get_pipe_from_connector(struct intel_connector
*connector
)
15370 struct drm_encoder
*encoder
= connector
->base
.encoder
;
15371 struct drm_device
*dev
= connector
->base
.dev
;
15373 WARN_ON(!drm_modeset_is_locked(&dev
->mode_config
.connection_mutex
));
15375 if (!encoder
|| WARN_ON(!encoder
->crtc
))
15376 return INVALID_PIPE
;
15378 return to_intel_crtc(encoder
->crtc
)->pipe
;
15381 int intel_get_pipe_from_crtc_id(struct drm_device
*dev
, void *data
,
15382 struct drm_file
*file
)
15384 struct drm_i915_get_pipe_from_crtc_id
*pipe_from_crtc_id
= data
;
15385 struct drm_crtc
*drmmode_crtc
;
15386 struct intel_crtc
*crtc
;
15388 drmmode_crtc
= drm_crtc_find(dev
, pipe_from_crtc_id
->crtc_id
);
15392 crtc
= to_intel_crtc(drmmode_crtc
);
15393 pipe_from_crtc_id
->pipe
= crtc
->pipe
;
15398 static int intel_encoder_clones(struct intel_encoder
*encoder
)
15400 struct drm_device
*dev
= encoder
->base
.dev
;
15401 struct intel_encoder
*source_encoder
;
15402 int index_mask
= 0;
15405 for_each_intel_encoder(dev
, source_encoder
) {
15406 if (encoders_cloneable(encoder
, source_encoder
))
15407 index_mask
|= (1 << entry
);
15415 static bool has_edp_a(struct drm_i915_private
*dev_priv
)
15417 if (!IS_MOBILE(dev_priv
))
15420 if ((I915_READ(DP_A
) & DP_DETECTED
) == 0)
15423 if (IS_GEN5(dev_priv
) && (I915_READ(FUSE_STRAP
) & ILK_eDP_A_DISABLE
))
15429 static bool intel_crt_present(struct drm_i915_private
*dev_priv
)
15431 if (INTEL_GEN(dev_priv
) >= 9)
15434 if (IS_HSW_ULT(dev_priv
) || IS_BDW_ULT(dev_priv
))
15437 if (IS_CHERRYVIEW(dev_priv
))
15440 if (HAS_PCH_LPT_H(dev_priv
) &&
15441 I915_READ(SFUSE_STRAP
) & SFUSE_STRAP_CRT_DISABLED
)
15444 /* DDI E can't be used if DDI A requires 4 lanes */
15445 if (HAS_DDI(dev_priv
) && I915_READ(DDI_BUF_CTL(PORT_A
)) & DDI_A_4_LANES
)
15448 if (!dev_priv
->vbt
.int_crt_support
)
15454 void intel_pps_unlock_regs_wa(struct drm_i915_private
*dev_priv
)
15459 if (HAS_DDI(dev_priv
))
15462 * This w/a is needed at least on CPT/PPT, but to be sure apply it
15463 * everywhere where registers can be write protected.
15465 if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
15470 for (pps_idx
= 0; pps_idx
< pps_num
; pps_idx
++) {
15471 u32 val
= I915_READ(PP_CONTROL(pps_idx
));
15473 val
= (val
& ~PANEL_UNLOCK_MASK
) | PANEL_UNLOCK_REGS
;
15474 I915_WRITE(PP_CONTROL(pps_idx
), val
);
15478 static void intel_pps_init(struct drm_i915_private
*dev_priv
)
15480 if (HAS_PCH_SPLIT(dev_priv
) || IS_BROXTON(dev_priv
))
15481 dev_priv
->pps_mmio_base
= PCH_PPS_BASE
;
15482 else if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
15483 dev_priv
->pps_mmio_base
= VLV_PPS_BASE
;
15485 dev_priv
->pps_mmio_base
= PPS_BASE
;
15487 intel_pps_unlock_regs_wa(dev_priv
);
15490 static void intel_setup_outputs(struct drm_i915_private
*dev_priv
)
15492 struct intel_encoder
*encoder
;
15493 bool dpd_is_edp
= false;
15495 intel_pps_init(dev_priv
);
15498 * intel_edp_init_connector() depends on this completing first, to
15499 * prevent the registeration of both eDP and LVDS and the incorrect
15500 * sharing of the PPS.
15502 intel_lvds_init(dev_priv
);
15504 if (intel_crt_present(dev_priv
))
15505 intel_crt_init(dev_priv
);
15507 if (IS_BROXTON(dev_priv
)) {
15509 * FIXME: Broxton doesn't support port detection via the
15510 * DDI_BUF_CTL_A or SFUSE_STRAP registers, find another way to
15511 * detect the ports.
15513 intel_ddi_init(dev_priv
, PORT_A
);
15514 intel_ddi_init(dev_priv
, PORT_B
);
15515 intel_ddi_init(dev_priv
, PORT_C
);
15517 intel_dsi_init(dev_priv
);
15518 } else if (HAS_DDI(dev_priv
)) {
15522 * Haswell uses DDI functions to detect digital outputs.
15523 * On SKL pre-D0 the strap isn't connected, so we assume
15526 found
= I915_READ(DDI_BUF_CTL(PORT_A
)) & DDI_INIT_DISPLAY_DETECTED
;
15527 /* WaIgnoreDDIAStrap: skl */
15528 if (found
|| IS_SKYLAKE(dev_priv
) || IS_KABYLAKE(dev_priv
))
15529 intel_ddi_init(dev_priv
, PORT_A
);
15531 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
15533 found
= I915_READ(SFUSE_STRAP
);
15535 if (found
& SFUSE_STRAP_DDIB_DETECTED
)
15536 intel_ddi_init(dev_priv
, PORT_B
);
15537 if (found
& SFUSE_STRAP_DDIC_DETECTED
)
15538 intel_ddi_init(dev_priv
, PORT_C
);
15539 if (found
& SFUSE_STRAP_DDID_DETECTED
)
15540 intel_ddi_init(dev_priv
, PORT_D
);
15542 * On SKL we don't have a way to detect DDI-E so we rely on VBT.
15544 if ((IS_SKYLAKE(dev_priv
) || IS_KABYLAKE(dev_priv
)) &&
15545 (dev_priv
->vbt
.ddi_port_info
[PORT_E
].supports_dp
||
15546 dev_priv
->vbt
.ddi_port_info
[PORT_E
].supports_dvi
||
15547 dev_priv
->vbt
.ddi_port_info
[PORT_E
].supports_hdmi
))
15548 intel_ddi_init(dev_priv
, PORT_E
);
15550 } else if (HAS_PCH_SPLIT(dev_priv
)) {
15552 dpd_is_edp
= intel_dp_is_edp(dev_priv
, PORT_D
);
15554 if (has_edp_a(dev_priv
))
15555 intel_dp_init(dev_priv
, DP_A
, PORT_A
);
15557 if (I915_READ(PCH_HDMIB
) & SDVO_DETECTED
) {
15558 /* PCH SDVOB multiplex with HDMIB */
15559 found
= intel_sdvo_init(dev_priv
, PCH_SDVOB
, PORT_B
);
15561 intel_hdmi_init(dev_priv
, PCH_HDMIB
, PORT_B
);
15562 if (!found
&& (I915_READ(PCH_DP_B
) & DP_DETECTED
))
15563 intel_dp_init(dev_priv
, PCH_DP_B
, PORT_B
);
15566 if (I915_READ(PCH_HDMIC
) & SDVO_DETECTED
)
15567 intel_hdmi_init(dev_priv
, PCH_HDMIC
, PORT_C
);
15569 if (!dpd_is_edp
&& I915_READ(PCH_HDMID
) & SDVO_DETECTED
)
15570 intel_hdmi_init(dev_priv
, PCH_HDMID
, PORT_D
);
15572 if (I915_READ(PCH_DP_C
) & DP_DETECTED
)
15573 intel_dp_init(dev_priv
, PCH_DP_C
, PORT_C
);
15575 if (I915_READ(PCH_DP_D
) & DP_DETECTED
)
15576 intel_dp_init(dev_priv
, PCH_DP_D
, PORT_D
);
15577 } else if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) {
15578 bool has_edp
, has_port
;
15581 * The DP_DETECTED bit is the latched state of the DDC
15582 * SDA pin at boot. However since eDP doesn't require DDC
15583 * (no way to plug in a DP->HDMI dongle) the DDC pins for
15584 * eDP ports may have been muxed to an alternate function.
15585 * Thus we can't rely on the DP_DETECTED bit alone to detect
15586 * eDP ports. Consult the VBT as well as DP_DETECTED to
15587 * detect eDP ports.
15589 * Sadly the straps seem to be missing sometimes even for HDMI
15590 * ports (eg. on Voyo V3 - CHT x7-Z8700), so check both strap
15591 * and VBT for the presence of the port. Additionally we can't
15592 * trust the port type the VBT declares as we've seen at least
15593 * HDMI ports that the VBT claim are DP or eDP.
15595 has_edp
= intel_dp_is_edp(dev_priv
, PORT_B
);
15596 has_port
= intel_bios_is_port_present(dev_priv
, PORT_B
);
15597 if (I915_READ(VLV_DP_B
) & DP_DETECTED
|| has_port
)
15598 has_edp
&= intel_dp_init(dev_priv
, VLV_DP_B
, PORT_B
);
15599 if ((I915_READ(VLV_HDMIB
) & SDVO_DETECTED
|| has_port
) && !has_edp
)
15600 intel_hdmi_init(dev_priv
, VLV_HDMIB
, PORT_B
);
15602 has_edp
= intel_dp_is_edp(dev_priv
, PORT_C
);
15603 has_port
= intel_bios_is_port_present(dev_priv
, PORT_C
);
15604 if (I915_READ(VLV_DP_C
) & DP_DETECTED
|| has_port
)
15605 has_edp
&= intel_dp_init(dev_priv
, VLV_DP_C
, PORT_C
);
15606 if ((I915_READ(VLV_HDMIC
) & SDVO_DETECTED
|| has_port
) && !has_edp
)
15607 intel_hdmi_init(dev_priv
, VLV_HDMIC
, PORT_C
);
15609 if (IS_CHERRYVIEW(dev_priv
)) {
15611 * eDP not supported on port D,
15612 * so no need to worry about it
15614 has_port
= intel_bios_is_port_present(dev_priv
, PORT_D
);
15615 if (I915_READ(CHV_DP_D
) & DP_DETECTED
|| has_port
)
15616 intel_dp_init(dev_priv
, CHV_DP_D
, PORT_D
);
15617 if (I915_READ(CHV_HDMID
) & SDVO_DETECTED
|| has_port
)
15618 intel_hdmi_init(dev_priv
, CHV_HDMID
, PORT_D
);
15621 intel_dsi_init(dev_priv
);
15622 } else if (!IS_GEN2(dev_priv
) && !IS_PINEVIEW(dev_priv
)) {
15623 bool found
= false;
15625 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
15626 DRM_DEBUG_KMS("probing SDVOB\n");
15627 found
= intel_sdvo_init(dev_priv
, GEN3_SDVOB
, PORT_B
);
15628 if (!found
&& IS_G4X(dev_priv
)) {
15629 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
15630 intel_hdmi_init(dev_priv
, GEN4_HDMIB
, PORT_B
);
15633 if (!found
&& IS_G4X(dev_priv
))
15634 intel_dp_init(dev_priv
, DP_B
, PORT_B
);
15637 /* Before G4X SDVOC doesn't have its own detect register */
15639 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
15640 DRM_DEBUG_KMS("probing SDVOC\n");
15641 found
= intel_sdvo_init(dev_priv
, GEN3_SDVOC
, PORT_C
);
15644 if (!found
&& (I915_READ(GEN3_SDVOC
) & SDVO_DETECTED
)) {
15646 if (IS_G4X(dev_priv
)) {
15647 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
15648 intel_hdmi_init(dev_priv
, GEN4_HDMIC
, PORT_C
);
15650 if (IS_G4X(dev_priv
))
15651 intel_dp_init(dev_priv
, DP_C
, PORT_C
);
15654 if (IS_G4X(dev_priv
) && (I915_READ(DP_D
) & DP_DETECTED
))
15655 intel_dp_init(dev_priv
, DP_D
, PORT_D
);
15656 } else if (IS_GEN2(dev_priv
))
15657 intel_dvo_init(dev_priv
);
15659 if (SUPPORTS_TV(dev_priv
))
15660 intel_tv_init(dev_priv
);
15662 intel_psr_init(dev_priv
);
15664 for_each_intel_encoder(&dev_priv
->drm
, encoder
) {
15665 encoder
->base
.possible_crtcs
= encoder
->crtc_mask
;
15666 encoder
->base
.possible_clones
=
15667 intel_encoder_clones(encoder
);
15670 intel_init_pch_refclk(dev_priv
);
15672 drm_helper_move_panel_connectors_to_head(&dev_priv
->drm
);
15675 static void intel_user_framebuffer_destroy(struct drm_framebuffer
*fb
)
15677 struct drm_device
*dev
= fb
->dev
;
15678 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
15680 drm_framebuffer_cleanup(fb
);
15681 mutex_lock(&dev
->struct_mutex
);
15682 WARN_ON(!intel_fb
->obj
->framebuffer_references
--);
15683 i915_gem_object_put(intel_fb
->obj
);
15684 mutex_unlock(&dev
->struct_mutex
);
15688 static int intel_user_framebuffer_create_handle(struct drm_framebuffer
*fb
,
15689 struct drm_file
*file
,
15690 unsigned int *handle
)
15692 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
15693 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
15695 if (obj
->userptr
.mm
) {
15696 DRM_DEBUG("attempting to use a userptr for a framebuffer, denied\n");
15700 return drm_gem_handle_create(file
, &obj
->base
, handle
);
15703 static int intel_user_framebuffer_dirty(struct drm_framebuffer
*fb
,
15704 struct drm_file
*file
,
15705 unsigned flags
, unsigned color
,
15706 struct drm_clip_rect
*clips
,
15707 unsigned num_clips
)
15709 struct drm_device
*dev
= fb
->dev
;
15710 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
15711 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
15713 mutex_lock(&dev
->struct_mutex
);
15714 if (obj
->pin_display
&& obj
->cache_dirty
)
15715 i915_gem_clflush_object(obj
, true);
15716 intel_fb_obj_flush(obj
, false, ORIGIN_DIRTYFB
);
15717 mutex_unlock(&dev
->struct_mutex
);
15722 static const struct drm_framebuffer_funcs intel_fb_funcs
= {
15723 .destroy
= intel_user_framebuffer_destroy
,
15724 .create_handle
= intel_user_framebuffer_create_handle
,
15725 .dirty
= intel_user_framebuffer_dirty
,
15729 u32
intel_fb_pitch_limit(struct drm_i915_private
*dev_priv
,
15730 uint64_t fb_modifier
, uint32_t pixel_format
)
15732 u32 gen
= INTEL_INFO(dev_priv
)->gen
;
15735 int cpp
= drm_format_plane_cpp(pixel_format
, 0);
15737 /* "The stride in bytes must not exceed the of the size of 8K
15738 * pixels and 32K bytes."
15740 return min(8192 * cpp
, 32768);
15741 } else if (gen
>= 5 && !IS_VALLEYVIEW(dev_priv
) &&
15742 !IS_CHERRYVIEW(dev_priv
)) {
15744 } else if (gen
>= 4) {
15745 if (fb_modifier
== I915_FORMAT_MOD_X_TILED
)
15749 } else if (gen
>= 3) {
15750 if (fb_modifier
== I915_FORMAT_MOD_X_TILED
)
15755 /* XXX DSPC is limited to 4k tiled */
15760 static int intel_framebuffer_init(struct drm_device
*dev
,
15761 struct intel_framebuffer
*intel_fb
,
15762 struct drm_mode_fb_cmd2
*mode_cmd
,
15763 struct drm_i915_gem_object
*obj
)
15765 struct drm_i915_private
*dev_priv
= to_i915(dev
);
15766 unsigned int tiling
= i915_gem_object_get_tiling(obj
);
15768 u32 pitch_limit
, stride_alignment
;
15769 struct drm_format_name_buf format_name
;
15771 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
15773 if (mode_cmd
->flags
& DRM_MODE_FB_MODIFIERS
) {
15775 * If there's a fence, enforce that
15776 * the fb modifier and tiling mode match.
15778 if (tiling
!= I915_TILING_NONE
&&
15779 tiling
!= intel_fb_modifier_to_tiling(mode_cmd
->modifier
[0])) {
15780 DRM_DEBUG("tiling_mode doesn't match fb modifier\n");
15784 if (tiling
== I915_TILING_X
) {
15785 mode_cmd
->modifier
[0] = I915_FORMAT_MOD_X_TILED
;
15786 } else if (tiling
== I915_TILING_Y
) {
15787 DRM_DEBUG("No Y tiling for legacy addfb\n");
15792 /* Passed in modifier sanity checking. */
15793 switch (mode_cmd
->modifier
[0]) {
15794 case I915_FORMAT_MOD_Y_TILED
:
15795 case I915_FORMAT_MOD_Yf_TILED
:
15796 if (INTEL_GEN(dev_priv
) < 9) {
15797 DRM_DEBUG("Unsupported tiling 0x%llx!\n",
15798 mode_cmd
->modifier
[0]);
15801 case DRM_FORMAT_MOD_NONE
:
15802 case I915_FORMAT_MOD_X_TILED
:
15805 DRM_DEBUG("Unsupported fb modifier 0x%llx!\n",
15806 mode_cmd
->modifier
[0]);
15811 * gen2/3 display engine uses the fence if present,
15812 * so the tiling mode must match the fb modifier exactly.
15814 if (INTEL_INFO(dev_priv
)->gen
< 4 &&
15815 tiling
!= intel_fb_modifier_to_tiling(mode_cmd
->modifier
[0])) {
15816 DRM_DEBUG("tiling_mode must match fb modifier exactly on gen2/3\n");
15820 stride_alignment
= intel_fb_stride_alignment(dev_priv
,
15821 mode_cmd
->modifier
[0],
15822 mode_cmd
->pixel_format
);
15823 if (mode_cmd
->pitches
[0] & (stride_alignment
- 1)) {
15824 DRM_DEBUG("pitch (%d) must be at least %u byte aligned\n",
15825 mode_cmd
->pitches
[0], stride_alignment
);
15829 pitch_limit
= intel_fb_pitch_limit(dev_priv
, mode_cmd
->modifier
[0],
15830 mode_cmd
->pixel_format
);
15831 if (mode_cmd
->pitches
[0] > pitch_limit
) {
15832 DRM_DEBUG("%s pitch (%u) must be at less than %d\n",
15833 mode_cmd
->modifier
[0] != DRM_FORMAT_MOD_NONE
?
15834 "tiled" : "linear",
15835 mode_cmd
->pitches
[0], pitch_limit
);
15840 * If there's a fence, enforce that
15841 * the fb pitch and fence stride match.
15843 if (tiling
!= I915_TILING_NONE
&&
15844 mode_cmd
->pitches
[0] != i915_gem_object_get_stride(obj
)) {
15845 DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n",
15846 mode_cmd
->pitches
[0],
15847 i915_gem_object_get_stride(obj
));
15851 /* Reject formats not supported by any plane early. */
15852 switch (mode_cmd
->pixel_format
) {
15853 case DRM_FORMAT_C8
:
15854 case DRM_FORMAT_RGB565
:
15855 case DRM_FORMAT_XRGB8888
:
15856 case DRM_FORMAT_ARGB8888
:
15858 case DRM_FORMAT_XRGB1555
:
15859 if (INTEL_GEN(dev_priv
) > 3) {
15860 DRM_DEBUG("unsupported pixel format: %s\n",
15861 drm_get_format_name(mode_cmd
->pixel_format
, &format_name
));
15865 case DRM_FORMAT_ABGR8888
:
15866 if (!IS_VALLEYVIEW(dev_priv
) && !IS_CHERRYVIEW(dev_priv
) &&
15867 INTEL_GEN(dev_priv
) < 9) {
15868 DRM_DEBUG("unsupported pixel format: %s\n",
15869 drm_get_format_name(mode_cmd
->pixel_format
, &format_name
));
15873 case DRM_FORMAT_XBGR8888
:
15874 case DRM_FORMAT_XRGB2101010
:
15875 case DRM_FORMAT_XBGR2101010
:
15876 if (INTEL_GEN(dev_priv
) < 4) {
15877 DRM_DEBUG("unsupported pixel format: %s\n",
15878 drm_get_format_name(mode_cmd
->pixel_format
, &format_name
));
15882 case DRM_FORMAT_ABGR2101010
:
15883 if (!IS_VALLEYVIEW(dev_priv
) && !IS_CHERRYVIEW(dev_priv
)) {
15884 DRM_DEBUG("unsupported pixel format: %s\n",
15885 drm_get_format_name(mode_cmd
->pixel_format
, &format_name
));
15889 case DRM_FORMAT_YUYV
:
15890 case DRM_FORMAT_UYVY
:
15891 case DRM_FORMAT_YVYU
:
15892 case DRM_FORMAT_VYUY
:
15893 if (INTEL_GEN(dev_priv
) < 5) {
15894 DRM_DEBUG("unsupported pixel format: %s\n",
15895 drm_get_format_name(mode_cmd
->pixel_format
, &format_name
));
15900 DRM_DEBUG("unsupported pixel format: %s\n",
15901 drm_get_format_name(mode_cmd
->pixel_format
, &format_name
));
15905 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
15906 if (mode_cmd
->offsets
[0] != 0)
15909 drm_helper_mode_fill_fb_struct(&intel_fb
->base
, mode_cmd
);
15910 intel_fb
->obj
= obj
;
15912 ret
= intel_fill_fb_info(dev_priv
, &intel_fb
->base
);
15916 ret
= drm_framebuffer_init(dev
, &intel_fb
->base
, &intel_fb_funcs
);
15918 DRM_ERROR("framebuffer init failed %d\n", ret
);
15922 intel_fb
->obj
->framebuffer_references
++;
15927 static struct drm_framebuffer
*
15928 intel_user_framebuffer_create(struct drm_device
*dev
,
15929 struct drm_file
*filp
,
15930 const struct drm_mode_fb_cmd2
*user_mode_cmd
)
15932 struct drm_framebuffer
*fb
;
15933 struct drm_i915_gem_object
*obj
;
15934 struct drm_mode_fb_cmd2 mode_cmd
= *user_mode_cmd
;
15936 obj
= i915_gem_object_lookup(filp
, mode_cmd
.handles
[0]);
15938 return ERR_PTR(-ENOENT
);
15940 fb
= intel_framebuffer_create(dev
, &mode_cmd
, obj
);
15942 i915_gem_object_put(obj
);
15947 static const struct drm_mode_config_funcs intel_mode_funcs
= {
15948 .fb_create
= intel_user_framebuffer_create
,
15949 .output_poll_changed
= intel_fbdev_output_poll_changed
,
15950 .atomic_check
= intel_atomic_check
,
15951 .atomic_commit
= intel_atomic_commit
,
15952 .atomic_state_alloc
= intel_atomic_state_alloc
,
15953 .atomic_state_clear
= intel_atomic_state_clear
,
15957 * intel_init_display_hooks - initialize the display modesetting hooks
15958 * @dev_priv: device private
15960 void intel_init_display_hooks(struct drm_i915_private
*dev_priv
)
15962 if (INTEL_INFO(dev_priv
)->gen
>= 9) {
15963 dev_priv
->display
.get_pipe_config
= haswell_get_pipe_config
;
15964 dev_priv
->display
.get_initial_plane_config
=
15965 skylake_get_initial_plane_config
;
15966 dev_priv
->display
.crtc_compute_clock
=
15967 haswell_crtc_compute_clock
;
15968 dev_priv
->display
.crtc_enable
= haswell_crtc_enable
;
15969 dev_priv
->display
.crtc_disable
= haswell_crtc_disable
;
15970 } else if (HAS_DDI(dev_priv
)) {
15971 dev_priv
->display
.get_pipe_config
= haswell_get_pipe_config
;
15972 dev_priv
->display
.get_initial_plane_config
=
15973 ironlake_get_initial_plane_config
;
15974 dev_priv
->display
.crtc_compute_clock
=
15975 haswell_crtc_compute_clock
;
15976 dev_priv
->display
.crtc_enable
= haswell_crtc_enable
;
15977 dev_priv
->display
.crtc_disable
= haswell_crtc_disable
;
15978 } else if (HAS_PCH_SPLIT(dev_priv
)) {
15979 dev_priv
->display
.get_pipe_config
= ironlake_get_pipe_config
;
15980 dev_priv
->display
.get_initial_plane_config
=
15981 ironlake_get_initial_plane_config
;
15982 dev_priv
->display
.crtc_compute_clock
=
15983 ironlake_crtc_compute_clock
;
15984 dev_priv
->display
.crtc_enable
= ironlake_crtc_enable
;
15985 dev_priv
->display
.crtc_disable
= ironlake_crtc_disable
;
15986 } else if (IS_CHERRYVIEW(dev_priv
)) {
15987 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
15988 dev_priv
->display
.get_initial_plane_config
=
15989 i9xx_get_initial_plane_config
;
15990 dev_priv
->display
.crtc_compute_clock
= chv_crtc_compute_clock
;
15991 dev_priv
->display
.crtc_enable
= valleyview_crtc_enable
;
15992 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
15993 } else if (IS_VALLEYVIEW(dev_priv
)) {
15994 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
15995 dev_priv
->display
.get_initial_plane_config
=
15996 i9xx_get_initial_plane_config
;
15997 dev_priv
->display
.crtc_compute_clock
= vlv_crtc_compute_clock
;
15998 dev_priv
->display
.crtc_enable
= valleyview_crtc_enable
;
15999 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
16000 } else if (IS_G4X(dev_priv
)) {
16001 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
16002 dev_priv
->display
.get_initial_plane_config
=
16003 i9xx_get_initial_plane_config
;
16004 dev_priv
->display
.crtc_compute_clock
= g4x_crtc_compute_clock
;
16005 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
16006 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
16007 } else if (IS_PINEVIEW(dev_priv
)) {
16008 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
16009 dev_priv
->display
.get_initial_plane_config
=
16010 i9xx_get_initial_plane_config
;
16011 dev_priv
->display
.crtc_compute_clock
= pnv_crtc_compute_clock
;
16012 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
16013 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
16014 } else if (!IS_GEN2(dev_priv
)) {
16015 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
16016 dev_priv
->display
.get_initial_plane_config
=
16017 i9xx_get_initial_plane_config
;
16018 dev_priv
->display
.crtc_compute_clock
= i9xx_crtc_compute_clock
;
16019 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
16020 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
16022 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
16023 dev_priv
->display
.get_initial_plane_config
=
16024 i9xx_get_initial_plane_config
;
16025 dev_priv
->display
.crtc_compute_clock
= i8xx_crtc_compute_clock
;
16026 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
16027 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
16030 /* Returns the core display clock speed */
16031 if (IS_SKYLAKE(dev_priv
) || IS_KABYLAKE(dev_priv
))
16032 dev_priv
->display
.get_display_clock_speed
=
16033 skylake_get_display_clock_speed
;
16034 else if (IS_BROXTON(dev_priv
))
16035 dev_priv
->display
.get_display_clock_speed
=
16036 broxton_get_display_clock_speed
;
16037 else if (IS_BROADWELL(dev_priv
))
16038 dev_priv
->display
.get_display_clock_speed
=
16039 broadwell_get_display_clock_speed
;
16040 else if (IS_HASWELL(dev_priv
))
16041 dev_priv
->display
.get_display_clock_speed
=
16042 haswell_get_display_clock_speed
;
16043 else if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
16044 dev_priv
->display
.get_display_clock_speed
=
16045 valleyview_get_display_clock_speed
;
16046 else if (IS_GEN5(dev_priv
))
16047 dev_priv
->display
.get_display_clock_speed
=
16048 ilk_get_display_clock_speed
;
16049 else if (IS_I945G(dev_priv
) || IS_BROADWATER(dev_priv
) ||
16050 IS_GEN6(dev_priv
) || IS_IVYBRIDGE(dev_priv
))
16051 dev_priv
->display
.get_display_clock_speed
=
16052 i945_get_display_clock_speed
;
16053 else if (IS_GM45(dev_priv
))
16054 dev_priv
->display
.get_display_clock_speed
=
16055 gm45_get_display_clock_speed
;
16056 else if (IS_CRESTLINE(dev_priv
))
16057 dev_priv
->display
.get_display_clock_speed
=
16058 i965gm_get_display_clock_speed
;
16059 else if (IS_PINEVIEW(dev_priv
))
16060 dev_priv
->display
.get_display_clock_speed
=
16061 pnv_get_display_clock_speed
;
16062 else if (IS_G33(dev_priv
) || IS_G4X(dev_priv
))
16063 dev_priv
->display
.get_display_clock_speed
=
16064 g33_get_display_clock_speed
;
16065 else if (IS_I915G(dev_priv
))
16066 dev_priv
->display
.get_display_clock_speed
=
16067 i915_get_display_clock_speed
;
16068 else if (IS_I945GM(dev_priv
) || IS_845G(dev_priv
))
16069 dev_priv
->display
.get_display_clock_speed
=
16070 i9xx_misc_get_display_clock_speed
;
16071 else if (IS_I915GM(dev_priv
))
16072 dev_priv
->display
.get_display_clock_speed
=
16073 i915gm_get_display_clock_speed
;
16074 else if (IS_I865G(dev_priv
))
16075 dev_priv
->display
.get_display_clock_speed
=
16076 i865_get_display_clock_speed
;
16077 else if (IS_I85X(dev_priv
))
16078 dev_priv
->display
.get_display_clock_speed
=
16079 i85x_get_display_clock_speed
;
16081 WARN(!IS_I830(dev_priv
), "Unknown platform. Assuming 133 MHz CDCLK\n");
16082 dev_priv
->display
.get_display_clock_speed
=
16083 i830_get_display_clock_speed
;
16086 if (IS_GEN5(dev_priv
)) {
16087 dev_priv
->display
.fdi_link_train
= ironlake_fdi_link_train
;
16088 } else if (IS_GEN6(dev_priv
)) {
16089 dev_priv
->display
.fdi_link_train
= gen6_fdi_link_train
;
16090 } else if (IS_IVYBRIDGE(dev_priv
)) {
16091 /* FIXME: detect B0+ stepping and use auto training */
16092 dev_priv
->display
.fdi_link_train
= ivb_manual_fdi_link_train
;
16093 } else if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
)) {
16094 dev_priv
->display
.fdi_link_train
= hsw_fdi_link_train
;
16097 if (IS_BROADWELL(dev_priv
)) {
16098 dev_priv
->display
.modeset_commit_cdclk
=
16099 broadwell_modeset_commit_cdclk
;
16100 dev_priv
->display
.modeset_calc_cdclk
=
16101 broadwell_modeset_calc_cdclk
;
16102 } else if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) {
16103 dev_priv
->display
.modeset_commit_cdclk
=
16104 valleyview_modeset_commit_cdclk
;
16105 dev_priv
->display
.modeset_calc_cdclk
=
16106 valleyview_modeset_calc_cdclk
;
16107 } else if (IS_BROXTON(dev_priv
)) {
16108 dev_priv
->display
.modeset_commit_cdclk
=
16109 bxt_modeset_commit_cdclk
;
16110 dev_priv
->display
.modeset_calc_cdclk
=
16111 bxt_modeset_calc_cdclk
;
16112 } else if (IS_SKYLAKE(dev_priv
) || IS_KABYLAKE(dev_priv
)) {
16113 dev_priv
->display
.modeset_commit_cdclk
=
16114 skl_modeset_commit_cdclk
;
16115 dev_priv
->display
.modeset_calc_cdclk
=
16116 skl_modeset_calc_cdclk
;
16119 if (dev_priv
->info
.gen
>= 9)
16120 dev_priv
->display
.update_crtcs
= skl_update_crtcs
;
16122 dev_priv
->display
.update_crtcs
= intel_update_crtcs
;
16124 switch (INTEL_INFO(dev_priv
)->gen
) {
16126 dev_priv
->display
.queue_flip
= intel_gen2_queue_flip
;
16130 dev_priv
->display
.queue_flip
= intel_gen3_queue_flip
;
16135 dev_priv
->display
.queue_flip
= intel_gen4_queue_flip
;
16139 dev_priv
->display
.queue_flip
= intel_gen6_queue_flip
;
16142 case 8: /* FIXME(BDW): Check that the gen8 RCS flip works. */
16143 dev_priv
->display
.queue_flip
= intel_gen7_queue_flip
;
16146 /* Drop through - unsupported since execlist only. */
16148 /* Default just returns -ENODEV to indicate unsupported */
16149 dev_priv
->display
.queue_flip
= intel_default_queue_flip
;
16154 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
16155 * resume, or other times. This quirk makes sure that's the case for
16156 * affected systems.
16158 static void quirk_pipea_force(struct drm_device
*dev
)
16160 struct drm_i915_private
*dev_priv
= to_i915(dev
);
16162 dev_priv
->quirks
|= QUIRK_PIPEA_FORCE
;
16163 DRM_INFO("applying pipe a force quirk\n");
16166 static void quirk_pipeb_force(struct drm_device
*dev
)
16168 struct drm_i915_private
*dev_priv
= to_i915(dev
);
16170 dev_priv
->quirks
|= QUIRK_PIPEB_FORCE
;
16171 DRM_INFO("applying pipe b force quirk\n");
16175 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
16177 static void quirk_ssc_force_disable(struct drm_device
*dev
)
16179 struct drm_i915_private
*dev_priv
= to_i915(dev
);
16180 dev_priv
->quirks
|= QUIRK_LVDS_SSC_DISABLE
;
16181 DRM_INFO("applying lvds SSC disable quirk\n");
16185 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
16188 static void quirk_invert_brightness(struct drm_device
*dev
)
16190 struct drm_i915_private
*dev_priv
= to_i915(dev
);
16191 dev_priv
->quirks
|= QUIRK_INVERT_BRIGHTNESS
;
16192 DRM_INFO("applying inverted panel brightness quirk\n");
16195 /* Some VBT's incorrectly indicate no backlight is present */
16196 static void quirk_backlight_present(struct drm_device
*dev
)
16198 struct drm_i915_private
*dev_priv
= to_i915(dev
);
16199 dev_priv
->quirks
|= QUIRK_BACKLIGHT_PRESENT
;
16200 DRM_INFO("applying backlight present quirk\n");
16203 struct intel_quirk
{
16205 int subsystem_vendor
;
16206 int subsystem_device
;
16207 void (*hook
)(struct drm_device
*dev
);
16210 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
16211 struct intel_dmi_quirk
{
16212 void (*hook
)(struct drm_device
*dev
);
16213 const struct dmi_system_id (*dmi_id_list
)[];
16216 static int intel_dmi_reverse_brightness(const struct dmi_system_id
*id
)
16218 DRM_INFO("Backlight polarity reversed on %s\n", id
->ident
);
16222 static const struct intel_dmi_quirk intel_dmi_quirks
[] = {
16224 .dmi_id_list
= &(const struct dmi_system_id
[]) {
16226 .callback
= intel_dmi_reverse_brightness
,
16227 .ident
= "NCR Corporation",
16228 .matches
= {DMI_MATCH(DMI_SYS_VENDOR
, "NCR Corporation"),
16229 DMI_MATCH(DMI_PRODUCT_NAME
, ""),
16232 { } /* terminating entry */
16234 .hook
= quirk_invert_brightness
,
16238 static struct intel_quirk intel_quirks
[] = {
16239 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
16240 { 0x2592, 0x1179, 0x0001, quirk_pipea_force
},
16242 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
16243 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force
},
16245 /* 830 needs to leave pipe A & dpll A up */
16246 { 0x3577, PCI_ANY_ID
, PCI_ANY_ID
, quirk_pipea_force
},
16248 /* 830 needs to leave pipe B & dpll B up */
16249 { 0x3577, PCI_ANY_ID
, PCI_ANY_ID
, quirk_pipeb_force
},
16251 /* Lenovo U160 cannot use SSC on LVDS */
16252 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable
},
16254 /* Sony Vaio Y cannot use SSC on LVDS */
16255 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable
},
16257 /* Acer Aspire 5734Z must invert backlight brightness */
16258 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness
},
16260 /* Acer/eMachines G725 */
16261 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness
},
16263 /* Acer/eMachines e725 */
16264 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness
},
16266 /* Acer/Packard Bell NCL20 */
16267 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness
},
16269 /* Acer Aspire 4736Z */
16270 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness
},
16272 /* Acer Aspire 5336 */
16273 { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness
},
16275 /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */
16276 { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present
},
16278 /* Acer C720 Chromebook (Core i3 4005U) */
16279 { 0x0a16, 0x1025, 0x0a11, quirk_backlight_present
},
16281 /* Apple Macbook 2,1 (Core 2 T7400) */
16282 { 0x27a2, 0x8086, 0x7270, quirk_backlight_present
},
16284 /* Apple Macbook 4,1 */
16285 { 0x2a02, 0x106b, 0x00a1, quirk_backlight_present
},
16287 /* Toshiba CB35 Chromebook (Celeron 2955U) */
16288 { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present
},
16290 /* HP Chromebook 14 (Celeron 2955U) */
16291 { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present
},
16293 /* Dell Chromebook 11 */
16294 { 0x0a06, 0x1028, 0x0a35, quirk_backlight_present
},
16296 /* Dell Chromebook 11 (2015 version) */
16297 { 0x0a16, 0x1028, 0x0a35, quirk_backlight_present
},
16300 static void intel_init_quirks(struct drm_device
*dev
)
16302 struct pci_dev
*d
= dev
->pdev
;
16305 for (i
= 0; i
< ARRAY_SIZE(intel_quirks
); i
++) {
16306 struct intel_quirk
*q
= &intel_quirks
[i
];
16308 if (d
->device
== q
->device
&&
16309 (d
->subsystem_vendor
== q
->subsystem_vendor
||
16310 q
->subsystem_vendor
== PCI_ANY_ID
) &&
16311 (d
->subsystem_device
== q
->subsystem_device
||
16312 q
->subsystem_device
== PCI_ANY_ID
))
16315 for (i
= 0; i
< ARRAY_SIZE(intel_dmi_quirks
); i
++) {
16316 if (dmi_check_system(*intel_dmi_quirks
[i
].dmi_id_list
) != 0)
16317 intel_dmi_quirks
[i
].hook(dev
);
16321 /* Disable the VGA plane that we never use */
16322 static void i915_disable_vga(struct drm_i915_private
*dev_priv
)
16324 struct pci_dev
*pdev
= dev_priv
->drm
.pdev
;
16326 i915_reg_t vga_reg
= i915_vgacntrl_reg(dev_priv
);
16328 /* WaEnableVGAAccessThroughIOPort:ctg,elk,ilk,snb,ivb,vlv,hsw */
16329 vga_get_uninterruptible(pdev
, VGA_RSRC_LEGACY_IO
);
16330 outb(SR01
, VGA_SR_INDEX
);
16331 sr1
= inb(VGA_SR_DATA
);
16332 outb(sr1
| 1<<5, VGA_SR_DATA
);
16333 vga_put(pdev
, VGA_RSRC_LEGACY_IO
);
16336 I915_WRITE(vga_reg
, VGA_DISP_DISABLE
);
16337 POSTING_READ(vga_reg
);
16340 void intel_modeset_init_hw(struct drm_device
*dev
)
16342 struct drm_i915_private
*dev_priv
= to_i915(dev
);
16344 intel_update_cdclk(dev_priv
);
16346 dev_priv
->atomic_cdclk_freq
= dev_priv
->cdclk_freq
;
16348 intel_init_clock_gating(dev_priv
);
16352 * Calculate what we think the watermarks should be for the state we've read
16353 * out of the hardware and then immediately program those watermarks so that
16354 * we ensure the hardware settings match our internal state.
16356 * We can calculate what we think WM's should be by creating a duplicate of the
16357 * current state (which was constructed during hardware readout) and running it
16358 * through the atomic check code to calculate new watermark values in the
16361 static void sanitize_watermarks(struct drm_device
*dev
)
16363 struct drm_i915_private
*dev_priv
= to_i915(dev
);
16364 struct drm_atomic_state
*state
;
16365 struct intel_atomic_state
*intel_state
;
16366 struct drm_crtc
*crtc
;
16367 struct drm_crtc_state
*cstate
;
16368 struct drm_modeset_acquire_ctx ctx
;
16372 /* Only supported on platforms that use atomic watermark design */
16373 if (!dev_priv
->display
.optimize_watermarks
)
16377 * We need to hold connection_mutex before calling duplicate_state so
16378 * that the connector loop is protected.
16380 drm_modeset_acquire_init(&ctx
, 0);
16382 ret
= drm_modeset_lock_all_ctx(dev
, &ctx
);
16383 if (ret
== -EDEADLK
) {
16384 drm_modeset_backoff(&ctx
);
16386 } else if (WARN_ON(ret
)) {
16390 state
= drm_atomic_helper_duplicate_state(dev
, &ctx
);
16391 if (WARN_ON(IS_ERR(state
)))
16394 intel_state
= to_intel_atomic_state(state
);
16397 * Hardware readout is the only time we don't want to calculate
16398 * intermediate watermarks (since we don't trust the current
16401 intel_state
->skip_intermediate_wm
= true;
16403 ret
= intel_atomic_check(dev
, state
);
16406 * If we fail here, it means that the hardware appears to be
16407 * programmed in a way that shouldn't be possible, given our
16408 * understanding of watermark requirements. This might mean a
16409 * mistake in the hardware readout code or a mistake in the
16410 * watermark calculations for a given platform. Raise a WARN
16411 * so that this is noticeable.
16413 * If this actually happens, we'll have to just leave the
16414 * BIOS-programmed watermarks untouched and hope for the best.
16416 WARN(true, "Could not determine valid watermarks for inherited state\n");
16420 /* Write calculated watermark values back */
16421 for_each_crtc_in_state(state
, crtc
, cstate
, i
) {
16422 struct intel_crtc_state
*cs
= to_intel_crtc_state(cstate
);
16424 cs
->wm
.need_postvbl_update
= true;
16425 dev_priv
->display
.optimize_watermarks(intel_state
, cs
);
16429 drm_atomic_state_put(state
);
16431 drm_modeset_drop_locks(&ctx
);
16432 drm_modeset_acquire_fini(&ctx
);
16435 int intel_modeset_init(struct drm_device
*dev
)
16437 struct drm_i915_private
*dev_priv
= to_i915(dev
);
16438 struct i915_ggtt
*ggtt
= &dev_priv
->ggtt
;
16440 struct intel_crtc
*crtc
;
16442 drm_mode_config_init(dev
);
16444 dev
->mode_config
.min_width
= 0;
16445 dev
->mode_config
.min_height
= 0;
16447 dev
->mode_config
.preferred_depth
= 24;
16448 dev
->mode_config
.prefer_shadow
= 1;
16450 dev
->mode_config
.allow_fb_modifiers
= true;
16452 dev
->mode_config
.funcs
= &intel_mode_funcs
;
16454 intel_init_quirks(dev
);
16456 intel_init_pm(dev_priv
);
16458 if (INTEL_INFO(dev_priv
)->num_pipes
== 0)
16462 * There may be no VBT; and if the BIOS enabled SSC we can
16463 * just keep using it to avoid unnecessary flicker. Whereas if the
16464 * BIOS isn't using it, don't assume it will work even if the VBT
16465 * indicates as much.
16467 if (HAS_PCH_IBX(dev_priv
) || HAS_PCH_CPT(dev_priv
)) {
16468 bool bios_lvds_use_ssc
= !!(I915_READ(PCH_DREF_CONTROL
) &
16471 if (dev_priv
->vbt
.lvds_use_ssc
!= bios_lvds_use_ssc
) {
16472 DRM_DEBUG_KMS("SSC %sabled by BIOS, overriding VBT which says %sabled\n",
16473 bios_lvds_use_ssc
? "en" : "dis",
16474 dev_priv
->vbt
.lvds_use_ssc
? "en" : "dis");
16475 dev_priv
->vbt
.lvds_use_ssc
= bios_lvds_use_ssc
;
16479 if (IS_GEN2(dev_priv
)) {
16480 dev
->mode_config
.max_width
= 2048;
16481 dev
->mode_config
.max_height
= 2048;
16482 } else if (IS_GEN3(dev_priv
)) {
16483 dev
->mode_config
.max_width
= 4096;
16484 dev
->mode_config
.max_height
= 4096;
16486 dev
->mode_config
.max_width
= 8192;
16487 dev
->mode_config
.max_height
= 8192;
16490 if (IS_845G(dev_priv
) || IS_I865G(dev_priv
)) {
16491 dev
->mode_config
.cursor_width
= IS_845G(dev_priv
) ? 64 : 512;
16492 dev
->mode_config
.cursor_height
= 1023;
16493 } else if (IS_GEN2(dev_priv
)) {
16494 dev
->mode_config
.cursor_width
= GEN2_CURSOR_WIDTH
;
16495 dev
->mode_config
.cursor_height
= GEN2_CURSOR_HEIGHT
;
16497 dev
->mode_config
.cursor_width
= MAX_CURSOR_WIDTH
;
16498 dev
->mode_config
.cursor_height
= MAX_CURSOR_HEIGHT
;
16501 dev
->mode_config
.fb_base
= ggtt
->mappable_base
;
16503 DRM_DEBUG_KMS("%d display pipe%s available.\n",
16504 INTEL_INFO(dev_priv
)->num_pipes
,
16505 INTEL_INFO(dev_priv
)->num_pipes
> 1 ? "s" : "");
16507 for_each_pipe(dev_priv
, pipe
) {
16510 ret
= intel_crtc_init(dev_priv
, pipe
);
16512 drm_mode_config_cleanup(dev
);
16517 intel_update_czclk(dev_priv
);
16518 intel_update_cdclk(dev_priv
);
16519 dev_priv
->atomic_cdclk_freq
= dev_priv
->cdclk_freq
;
16521 intel_shared_dpll_init(dev
);
16523 if (dev_priv
->max_cdclk_freq
== 0)
16524 intel_update_max_cdclk(dev_priv
);
16526 /* Just disable it once at startup */
16527 i915_disable_vga(dev_priv
);
16528 intel_setup_outputs(dev_priv
);
16530 drm_modeset_lock_all(dev
);
16531 intel_modeset_setup_hw_state(dev
);
16532 drm_modeset_unlock_all(dev
);
16534 for_each_intel_crtc(dev
, crtc
) {
16535 struct intel_initial_plane_config plane_config
= {};
16541 * Note that reserving the BIOS fb up front prevents us
16542 * from stuffing other stolen allocations like the ring
16543 * on top. This prevents some ugliness at boot time, and
16544 * can even allow for smooth boot transitions if the BIOS
16545 * fb is large enough for the active pipe configuration.
16547 dev_priv
->display
.get_initial_plane_config(crtc
,
16551 * If the fb is shared between multiple heads, we'll
16552 * just get the first one.
16554 intel_find_initial_plane_obj(crtc
, &plane_config
);
16558 * Make sure hardware watermarks really match the state we read out.
16559 * Note that we need to do this after reconstructing the BIOS fb's
16560 * since the watermark calculation done here will use pstate->fb.
16562 sanitize_watermarks(dev
);
16567 static void intel_enable_pipe_a(struct drm_device
*dev
)
16569 struct intel_connector
*connector
;
16570 struct drm_connector
*crt
= NULL
;
16571 struct intel_load_detect_pipe load_detect_temp
;
16572 struct drm_modeset_acquire_ctx
*ctx
= dev
->mode_config
.acquire_ctx
;
16574 /* We can't just switch on the pipe A, we need to set things up with a
16575 * proper mode and output configuration. As a gross hack, enable pipe A
16576 * by enabling the load detect pipe once. */
16577 for_each_intel_connector(dev
, connector
) {
16578 if (connector
->encoder
->type
== INTEL_OUTPUT_ANALOG
) {
16579 crt
= &connector
->base
;
16587 if (intel_get_load_detect_pipe(crt
, NULL
, &load_detect_temp
, ctx
))
16588 intel_release_load_detect_pipe(crt
, &load_detect_temp
, ctx
);
16592 intel_check_plane_mapping(struct intel_crtc
*crtc
)
16594 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
16597 if (INTEL_INFO(dev_priv
)->num_pipes
== 1)
16600 val
= I915_READ(DSPCNTR(!crtc
->plane
));
16602 if ((val
& DISPLAY_PLANE_ENABLE
) &&
16603 (!!(val
& DISPPLANE_SEL_PIPE_MASK
) == crtc
->pipe
))
16609 static bool intel_crtc_has_encoders(struct intel_crtc
*crtc
)
16611 struct drm_device
*dev
= crtc
->base
.dev
;
16612 struct intel_encoder
*encoder
;
16614 for_each_encoder_on_crtc(dev
, &crtc
->base
, encoder
)
16620 static struct intel_connector
*intel_encoder_find_connector(struct intel_encoder
*encoder
)
16622 struct drm_device
*dev
= encoder
->base
.dev
;
16623 struct intel_connector
*connector
;
16625 for_each_connector_on_encoder(dev
, &encoder
->base
, connector
)
16631 static bool has_pch_trancoder(struct drm_i915_private
*dev_priv
,
16632 enum transcoder pch_transcoder
)
16634 return HAS_PCH_IBX(dev_priv
) || HAS_PCH_CPT(dev_priv
) ||
16635 (HAS_PCH_LPT_H(dev_priv
) && pch_transcoder
== TRANSCODER_A
);
16638 static void intel_sanitize_crtc(struct intel_crtc
*crtc
)
16640 struct drm_device
*dev
= crtc
->base
.dev
;
16641 struct drm_i915_private
*dev_priv
= to_i915(dev
);
16642 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
16644 /* Clear any frame start delays used for debugging left by the BIOS */
16645 if (!transcoder_is_dsi(cpu_transcoder
)) {
16646 i915_reg_t reg
= PIPECONF(cpu_transcoder
);
16649 I915_READ(reg
) & ~PIPECONF_FRAME_START_DELAY_MASK
);
16652 /* restore vblank interrupts to correct state */
16653 drm_crtc_vblank_reset(&crtc
->base
);
16654 if (crtc
->active
) {
16655 struct intel_plane
*plane
;
16657 drm_crtc_vblank_on(&crtc
->base
);
16659 /* Disable everything but the primary plane */
16660 for_each_intel_plane_on_crtc(dev
, crtc
, plane
) {
16661 if (plane
->base
.type
== DRM_PLANE_TYPE_PRIMARY
)
16664 plane
->disable_plane(&plane
->base
, &crtc
->base
);
16668 /* We need to sanitize the plane -> pipe mapping first because this will
16669 * disable the crtc (and hence change the state) if it is wrong. Note
16670 * that gen4+ has a fixed plane -> pipe mapping. */
16671 if (INTEL_GEN(dev_priv
) < 4 && !intel_check_plane_mapping(crtc
)) {
16674 DRM_DEBUG_KMS("[CRTC:%d:%s] wrong plane connection detected!\n",
16675 crtc
->base
.base
.id
, crtc
->base
.name
);
16677 /* Pipe has the wrong plane attached and the plane is active.
16678 * Temporarily change the plane mapping and disable everything
16680 plane
= crtc
->plane
;
16681 to_intel_plane_state(crtc
->base
.primary
->state
)->base
.visible
= true;
16682 crtc
->plane
= !plane
;
16683 intel_crtc_disable_noatomic(&crtc
->base
);
16684 crtc
->plane
= plane
;
16687 if (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
&&
16688 crtc
->pipe
== PIPE_A
&& !crtc
->active
) {
16689 /* BIOS forgot to enable pipe A, this mostly happens after
16690 * resume. Force-enable the pipe to fix this, the update_dpms
16691 * call below we restore the pipe to the right state, but leave
16692 * the required bits on. */
16693 intel_enable_pipe_a(dev
);
16696 /* Adjust the state of the output pipe according to whether we
16697 * have active connectors/encoders. */
16698 if (crtc
->active
&& !intel_crtc_has_encoders(crtc
))
16699 intel_crtc_disable_noatomic(&crtc
->base
);
16701 if (crtc
->active
|| HAS_GMCH_DISPLAY(dev_priv
)) {
16703 * We start out with underrun reporting disabled to avoid races.
16704 * For correct bookkeeping mark this on active crtcs.
16706 * Also on gmch platforms we dont have any hardware bits to
16707 * disable the underrun reporting. Which means we need to start
16708 * out with underrun reporting disabled also on inactive pipes,
16709 * since otherwise we'll complain about the garbage we read when
16710 * e.g. coming up after runtime pm.
16712 * No protection against concurrent access is required - at
16713 * worst a fifo underrun happens which also sets this to false.
16715 crtc
->cpu_fifo_underrun_disabled
= true;
16717 * We track the PCH trancoder underrun reporting state
16718 * within the crtc. With crtc for pipe A housing the underrun
16719 * reporting state for PCH transcoder A, crtc for pipe B housing
16720 * it for PCH transcoder B, etc. LPT-H has only PCH transcoder A,
16721 * and marking underrun reporting as disabled for the non-existing
16722 * PCH transcoders B and C would prevent enabling the south
16723 * error interrupt (see cpt_can_enable_serr_int()).
16725 if (has_pch_trancoder(dev_priv
, (enum transcoder
)crtc
->pipe
))
16726 crtc
->pch_fifo_underrun_disabled
= true;
16730 static void intel_sanitize_encoder(struct intel_encoder
*encoder
)
16732 struct intel_connector
*connector
;
16734 /* We need to check both for a crtc link (meaning that the
16735 * encoder is active and trying to read from a pipe) and the
16736 * pipe itself being active. */
16737 bool has_active_crtc
= encoder
->base
.crtc
&&
16738 to_intel_crtc(encoder
->base
.crtc
)->active
;
16740 connector
= intel_encoder_find_connector(encoder
);
16741 if (connector
&& !has_active_crtc
) {
16742 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
16743 encoder
->base
.base
.id
,
16744 encoder
->base
.name
);
16746 /* Connector is active, but has no active pipe. This is
16747 * fallout from our resume register restoring. Disable
16748 * the encoder manually again. */
16749 if (encoder
->base
.crtc
) {
16750 struct drm_crtc_state
*crtc_state
= encoder
->base
.crtc
->state
;
16752 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
16753 encoder
->base
.base
.id
,
16754 encoder
->base
.name
);
16755 encoder
->disable(encoder
, to_intel_crtc_state(crtc_state
), connector
->base
.state
);
16756 if (encoder
->post_disable
)
16757 encoder
->post_disable(encoder
, to_intel_crtc_state(crtc_state
), connector
->base
.state
);
16759 encoder
->base
.crtc
= NULL
;
16761 /* Inconsistent output/port/pipe state happens presumably due to
16762 * a bug in one of the get_hw_state functions. Or someplace else
16763 * in our code, like the register restore mess on resume. Clamp
16764 * things to off as a safer default. */
16766 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
16767 connector
->base
.encoder
= NULL
;
16769 /* Enabled encoders without active connectors will be fixed in
16770 * the crtc fixup. */
16773 void i915_redisable_vga_power_on(struct drm_i915_private
*dev_priv
)
16775 i915_reg_t vga_reg
= i915_vgacntrl_reg(dev_priv
);
16777 if (!(I915_READ(vga_reg
) & VGA_DISP_DISABLE
)) {
16778 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
16779 i915_disable_vga(dev_priv
);
16783 void i915_redisable_vga(struct drm_i915_private
*dev_priv
)
16785 /* This function can be called both from intel_modeset_setup_hw_state or
16786 * at a very early point in our resume sequence, where the power well
16787 * structures are not yet restored. Since this function is at a very
16788 * paranoid "someone might have enabled VGA while we were not looking"
16789 * level, just check if the power well is enabled instead of trying to
16790 * follow the "don't touch the power well if we don't need it" policy
16791 * the rest of the driver uses. */
16792 if (!intel_display_power_get_if_enabled(dev_priv
, POWER_DOMAIN_VGA
))
16795 i915_redisable_vga_power_on(dev_priv
);
16797 intel_display_power_put(dev_priv
, POWER_DOMAIN_VGA
);
16800 static bool primary_get_hw_state(struct intel_plane
*plane
)
16802 struct drm_i915_private
*dev_priv
= to_i915(plane
->base
.dev
);
16804 return I915_READ(DSPCNTR(plane
->plane
)) & DISPLAY_PLANE_ENABLE
;
16807 /* FIXME read out full plane state for all planes */
16808 static void readout_plane_state(struct intel_crtc
*crtc
)
16810 struct drm_plane
*primary
= crtc
->base
.primary
;
16811 struct intel_plane_state
*plane_state
=
16812 to_intel_plane_state(primary
->state
);
16814 plane_state
->base
.visible
= crtc
->active
&&
16815 primary_get_hw_state(to_intel_plane(primary
));
16817 if (plane_state
->base
.visible
)
16818 crtc
->base
.state
->plane_mask
|= 1 << drm_plane_index(primary
);
16821 static void intel_modeset_readout_hw_state(struct drm_device
*dev
)
16823 struct drm_i915_private
*dev_priv
= to_i915(dev
);
16825 struct intel_crtc
*crtc
;
16826 struct intel_encoder
*encoder
;
16827 struct intel_connector
*connector
;
16830 dev_priv
->active_crtcs
= 0;
16832 for_each_intel_crtc(dev
, crtc
) {
16833 struct intel_crtc_state
*crtc_state
= crtc
->config
;
16836 __drm_atomic_helper_crtc_destroy_state(&crtc_state
->base
);
16837 memset(crtc_state
, 0, sizeof(*crtc_state
));
16838 crtc_state
->base
.crtc
= &crtc
->base
;
16840 crtc_state
->base
.active
= crtc_state
->base
.enable
=
16841 dev_priv
->display
.get_pipe_config(crtc
, crtc_state
);
16843 crtc
->base
.enabled
= crtc_state
->base
.enable
;
16844 crtc
->active
= crtc_state
->base
.active
;
16846 if (crtc_state
->base
.active
) {
16847 dev_priv
->active_crtcs
|= 1 << crtc
->pipe
;
16849 if (INTEL_GEN(dev_priv
) >= 9 || IS_BROADWELL(dev_priv
))
16850 pixclk
= ilk_pipe_pixel_rate(crtc_state
);
16851 else if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
16852 pixclk
= crtc_state
->base
.adjusted_mode
.crtc_clock
;
16854 WARN_ON(dev_priv
->display
.modeset_calc_cdclk
);
16856 /* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */
16857 if (IS_BROADWELL(dev_priv
) && crtc_state
->ips_enabled
)
16858 pixclk
= DIV_ROUND_UP(pixclk
* 100, 95);
16861 dev_priv
->min_pixclk
[crtc
->pipe
] = pixclk
;
16863 readout_plane_state(crtc
);
16865 DRM_DEBUG_KMS("[CRTC:%d:%s] hw state readout: %s\n",
16866 crtc
->base
.base
.id
, crtc
->base
.name
,
16867 enableddisabled(crtc
->active
));
16870 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
16871 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
16873 pll
->on
= pll
->funcs
.get_hw_state(dev_priv
, pll
,
16874 &pll
->config
.hw_state
);
16875 pll
->config
.crtc_mask
= 0;
16876 for_each_intel_crtc(dev
, crtc
) {
16877 if (crtc
->active
&& crtc
->config
->shared_dpll
== pll
)
16878 pll
->config
.crtc_mask
|= 1 << crtc
->pipe
;
16880 pll
->active_mask
= pll
->config
.crtc_mask
;
16882 DRM_DEBUG_KMS("%s hw state readout: crtc_mask 0x%08x, on %i\n",
16883 pll
->name
, pll
->config
.crtc_mask
, pll
->on
);
16886 for_each_intel_encoder(dev
, encoder
) {
16889 if (encoder
->get_hw_state(encoder
, &pipe
)) {
16890 crtc
= intel_get_crtc_for_pipe(dev_priv
, pipe
);
16892 encoder
->base
.crtc
= &crtc
->base
;
16893 crtc
->config
->output_types
|= 1 << encoder
->type
;
16894 encoder
->get_config(encoder
, crtc
->config
);
16896 encoder
->base
.crtc
= NULL
;
16899 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n",
16900 encoder
->base
.base
.id
, encoder
->base
.name
,
16901 enableddisabled(encoder
->base
.crtc
),
16905 for_each_intel_connector(dev
, connector
) {
16906 if (connector
->get_hw_state(connector
)) {
16907 connector
->base
.dpms
= DRM_MODE_DPMS_ON
;
16909 encoder
= connector
->encoder
;
16910 connector
->base
.encoder
= &encoder
->base
;
16912 if (encoder
->base
.crtc
&&
16913 encoder
->base
.crtc
->state
->active
) {
16915 * This has to be done during hardware readout
16916 * because anything calling .crtc_disable may
16917 * rely on the connector_mask being accurate.
16919 encoder
->base
.crtc
->state
->connector_mask
|=
16920 1 << drm_connector_index(&connector
->base
);
16921 encoder
->base
.crtc
->state
->encoder_mask
|=
16922 1 << drm_encoder_index(&encoder
->base
);
16926 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
16927 connector
->base
.encoder
= NULL
;
16929 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
16930 connector
->base
.base
.id
, connector
->base
.name
,
16931 enableddisabled(connector
->base
.encoder
));
16934 for_each_intel_crtc(dev
, crtc
) {
16935 crtc
->base
.hwmode
= crtc
->config
->base
.adjusted_mode
;
16937 memset(&crtc
->base
.mode
, 0, sizeof(crtc
->base
.mode
));
16938 if (crtc
->base
.state
->active
) {
16939 intel_mode_from_pipe_config(&crtc
->base
.mode
, crtc
->config
);
16940 intel_mode_from_pipe_config(&crtc
->base
.state
->adjusted_mode
, crtc
->config
);
16941 WARN_ON(drm_atomic_set_mode_for_crtc(crtc
->base
.state
, &crtc
->base
.mode
));
16944 * The initial mode needs to be set in order to keep
16945 * the atomic core happy. It wants a valid mode if the
16946 * crtc's enabled, so we do the above call.
16948 * At this point some state updated by the connectors
16949 * in their ->detect() callback has not run yet, so
16950 * no recalculation can be done yet.
16952 * Even if we could do a recalculation and modeset
16953 * right now it would cause a double modeset if
16954 * fbdev or userspace chooses a different initial mode.
16956 * If that happens, someone indicated they wanted a
16957 * mode change, which means it's safe to do a full
16960 crtc
->base
.state
->mode
.private_flags
= I915_MODE_FLAG_INHERITED
;
16962 drm_calc_timestamping_constants(&crtc
->base
, &crtc
->base
.hwmode
);
16963 update_scanline_offset(crtc
);
16966 intel_pipe_config_sanity_check(dev_priv
, crtc
->config
);
16970 /* Scan out the current hw modeset state,
16971 * and sanitizes it to the current state
16974 intel_modeset_setup_hw_state(struct drm_device
*dev
)
16976 struct drm_i915_private
*dev_priv
= to_i915(dev
);
16978 struct intel_crtc
*crtc
;
16979 struct intel_encoder
*encoder
;
16982 intel_modeset_readout_hw_state(dev
);
16984 /* HW state is read out, now we need to sanitize this mess. */
16985 for_each_intel_encoder(dev
, encoder
) {
16986 intel_sanitize_encoder(encoder
);
16989 for_each_pipe(dev_priv
, pipe
) {
16990 crtc
= intel_get_crtc_for_pipe(dev_priv
, pipe
);
16992 intel_sanitize_crtc(crtc
);
16993 intel_dump_pipe_config(crtc
, crtc
->config
,
16994 "[setup_hw_state]");
16997 intel_modeset_update_connector_atomic_state(dev
);
16999 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
17000 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
17002 if (!pll
->on
|| pll
->active_mask
)
17005 DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll
->name
);
17007 pll
->funcs
.disable(dev_priv
, pll
);
17011 if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
17012 vlv_wm_get_hw_state(dev
);
17013 else if (IS_GEN9(dev_priv
))
17014 skl_wm_get_hw_state(dev
);
17015 else if (HAS_PCH_SPLIT(dev_priv
))
17016 ilk_wm_get_hw_state(dev
);
17018 for_each_intel_crtc(dev
, crtc
) {
17019 unsigned long put_domains
;
17021 put_domains
= modeset_get_crtc_power_domains(&crtc
->base
, crtc
->config
);
17022 if (WARN_ON(put_domains
))
17023 modeset_put_power_domains(dev_priv
, put_domains
);
17025 intel_display_set_init_power(dev_priv
, false);
17027 intel_fbc_init_pipe_state(dev_priv
);
17030 void intel_display_resume(struct drm_device
*dev
)
17032 struct drm_i915_private
*dev_priv
= to_i915(dev
);
17033 struct drm_atomic_state
*state
= dev_priv
->modeset_restore_state
;
17034 struct drm_modeset_acquire_ctx ctx
;
17037 dev_priv
->modeset_restore_state
= NULL
;
17039 state
->acquire_ctx
= &ctx
;
17042 * This is a cludge because with real atomic modeset mode_config.mutex
17043 * won't be taken. Unfortunately some probed state like
17044 * audio_codec_enable is still protected by mode_config.mutex, so lock
17047 mutex_lock(&dev
->mode_config
.mutex
);
17048 drm_modeset_acquire_init(&ctx
, 0);
17051 ret
= drm_modeset_lock_all_ctx(dev
, &ctx
);
17052 if (ret
!= -EDEADLK
)
17055 drm_modeset_backoff(&ctx
);
17059 ret
= __intel_display_resume(dev
, state
);
17061 drm_modeset_drop_locks(&ctx
);
17062 drm_modeset_acquire_fini(&ctx
);
17063 mutex_unlock(&dev
->mode_config
.mutex
);
17066 DRM_ERROR("Restoring old state failed with %i\n", ret
);
17067 drm_atomic_state_put(state
);
17070 void intel_modeset_gem_init(struct drm_device
*dev
)
17072 struct drm_i915_private
*dev_priv
= to_i915(dev
);
17073 struct drm_crtc
*c
;
17074 struct drm_i915_gem_object
*obj
;
17076 intel_init_gt_powersave(dev_priv
);
17078 intel_modeset_init_hw(dev
);
17080 intel_setup_overlay(dev_priv
);
17083 * Make sure any fbs we allocated at startup are properly
17084 * pinned & fenced. When we do the allocation it's too early
17087 for_each_crtc(dev
, c
) {
17088 struct i915_vma
*vma
;
17090 obj
= intel_fb_obj(c
->primary
->fb
);
17094 mutex_lock(&dev
->struct_mutex
);
17095 vma
= intel_pin_and_fence_fb_obj(c
->primary
->fb
,
17096 c
->primary
->state
->rotation
);
17097 mutex_unlock(&dev
->struct_mutex
);
17099 DRM_ERROR("failed to pin boot fb on pipe %d\n",
17100 to_intel_crtc(c
)->pipe
);
17101 drm_framebuffer_unreference(c
->primary
->fb
);
17102 c
->primary
->fb
= NULL
;
17103 c
->primary
->crtc
= c
->primary
->state
->crtc
= NULL
;
17104 update_state_fb(c
->primary
);
17105 c
->state
->plane_mask
&= ~(1 << drm_plane_index(c
->primary
));
17110 int intel_connector_register(struct drm_connector
*connector
)
17112 struct intel_connector
*intel_connector
= to_intel_connector(connector
);
17115 ret
= intel_backlight_device_register(intel_connector
);
17125 void intel_connector_unregister(struct drm_connector
*connector
)
17127 struct intel_connector
*intel_connector
= to_intel_connector(connector
);
17129 intel_backlight_device_unregister(intel_connector
);
17130 intel_panel_destroy_backlight(connector
);
17133 void intel_modeset_cleanup(struct drm_device
*dev
)
17135 struct drm_i915_private
*dev_priv
= to_i915(dev
);
17137 intel_disable_gt_powersave(dev_priv
);
17140 * Interrupts and polling as the first thing to avoid creating havoc.
17141 * Too much stuff here (turning of connectors, ...) would
17142 * experience fancy races otherwise.
17144 intel_irq_uninstall(dev_priv
);
17147 * Due to the hpd irq storm handling the hotplug work can re-arm the
17148 * poll handlers. Hence disable polling after hpd handling is shut down.
17150 drm_kms_helper_poll_fini(dev
);
17152 intel_unregister_dsm_handler();
17154 intel_fbc_global_disable(dev_priv
);
17156 /* flush any delayed tasks or pending work */
17157 flush_scheduled_work();
17159 drm_mode_config_cleanup(dev
);
17161 intel_cleanup_overlay(dev_priv
);
17163 intel_cleanup_gt_powersave(dev_priv
);
17165 intel_teardown_gmbus(dev
);
17168 void intel_connector_attach_encoder(struct intel_connector
*connector
,
17169 struct intel_encoder
*encoder
)
17171 connector
->encoder
= encoder
;
17172 drm_mode_connector_attach_encoder(&connector
->base
,
17177 * set vga decode state - true == enable VGA decode
17179 int intel_modeset_vga_set_state(struct drm_i915_private
*dev_priv
, bool state
)
17181 unsigned reg
= INTEL_GEN(dev_priv
) >= 6 ? SNB_GMCH_CTRL
: INTEL_GMCH_CTRL
;
17184 if (pci_read_config_word(dev_priv
->bridge_dev
, reg
, &gmch_ctrl
)) {
17185 DRM_ERROR("failed to read control word\n");
17189 if (!!(gmch_ctrl
& INTEL_GMCH_VGA_DISABLE
) == !state
)
17193 gmch_ctrl
&= ~INTEL_GMCH_VGA_DISABLE
;
17195 gmch_ctrl
|= INTEL_GMCH_VGA_DISABLE
;
17197 if (pci_write_config_word(dev_priv
->bridge_dev
, reg
, gmch_ctrl
)) {
17198 DRM_ERROR("failed to write control word\n");
17205 #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
17207 struct intel_display_error_state
{
17209 u32 power_well_driver
;
17211 int num_transcoders
;
17213 struct intel_cursor_error_state
{
17218 } cursor
[I915_MAX_PIPES
];
17220 struct intel_pipe_error_state
{
17221 bool power_domain_on
;
17224 } pipe
[I915_MAX_PIPES
];
17226 struct intel_plane_error_state
{
17234 } plane
[I915_MAX_PIPES
];
17236 struct intel_transcoder_error_state
{
17237 bool power_domain_on
;
17238 enum transcoder cpu_transcoder
;
17251 struct intel_display_error_state
*
17252 intel_display_capture_error_state(struct drm_i915_private
*dev_priv
)
17254 struct intel_display_error_state
*error
;
17255 int transcoders
[] = {
17263 if (INTEL_INFO(dev_priv
)->num_pipes
== 0)
17266 error
= kzalloc(sizeof(*error
), GFP_ATOMIC
);
17270 if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
))
17271 error
->power_well_driver
= I915_READ(HSW_PWR_WELL_DRIVER
);
17273 for_each_pipe(dev_priv
, i
) {
17274 error
->pipe
[i
].power_domain_on
=
17275 __intel_display_power_is_enabled(dev_priv
,
17276 POWER_DOMAIN_PIPE(i
));
17277 if (!error
->pipe
[i
].power_domain_on
)
17280 error
->cursor
[i
].control
= I915_READ(CURCNTR(i
));
17281 error
->cursor
[i
].position
= I915_READ(CURPOS(i
));
17282 error
->cursor
[i
].base
= I915_READ(CURBASE(i
));
17284 error
->plane
[i
].control
= I915_READ(DSPCNTR(i
));
17285 error
->plane
[i
].stride
= I915_READ(DSPSTRIDE(i
));
17286 if (INTEL_GEN(dev_priv
) <= 3) {
17287 error
->plane
[i
].size
= I915_READ(DSPSIZE(i
));
17288 error
->plane
[i
].pos
= I915_READ(DSPPOS(i
));
17290 if (INTEL_GEN(dev_priv
) <= 7 && !IS_HASWELL(dev_priv
))
17291 error
->plane
[i
].addr
= I915_READ(DSPADDR(i
));
17292 if (INTEL_GEN(dev_priv
) >= 4) {
17293 error
->plane
[i
].surface
= I915_READ(DSPSURF(i
));
17294 error
->plane
[i
].tile_offset
= I915_READ(DSPTILEOFF(i
));
17297 error
->pipe
[i
].source
= I915_READ(PIPESRC(i
));
17299 if (HAS_GMCH_DISPLAY(dev_priv
))
17300 error
->pipe
[i
].stat
= I915_READ(PIPESTAT(i
));
17303 /* Note: this does not include DSI transcoders. */
17304 error
->num_transcoders
= INTEL_INFO(dev_priv
)->num_pipes
;
17305 if (HAS_DDI(dev_priv
))
17306 error
->num_transcoders
++; /* Account for eDP. */
17308 for (i
= 0; i
< error
->num_transcoders
; i
++) {
17309 enum transcoder cpu_transcoder
= transcoders
[i
];
17311 error
->transcoder
[i
].power_domain_on
=
17312 __intel_display_power_is_enabled(dev_priv
,
17313 POWER_DOMAIN_TRANSCODER(cpu_transcoder
));
17314 if (!error
->transcoder
[i
].power_domain_on
)
17317 error
->transcoder
[i
].cpu_transcoder
= cpu_transcoder
;
17319 error
->transcoder
[i
].conf
= I915_READ(PIPECONF(cpu_transcoder
));
17320 error
->transcoder
[i
].htotal
= I915_READ(HTOTAL(cpu_transcoder
));
17321 error
->transcoder
[i
].hblank
= I915_READ(HBLANK(cpu_transcoder
));
17322 error
->transcoder
[i
].hsync
= I915_READ(HSYNC(cpu_transcoder
));
17323 error
->transcoder
[i
].vtotal
= I915_READ(VTOTAL(cpu_transcoder
));
17324 error
->transcoder
[i
].vblank
= I915_READ(VBLANK(cpu_transcoder
));
17325 error
->transcoder
[i
].vsync
= I915_READ(VSYNC(cpu_transcoder
));
17331 #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
17334 intel_display_print_error_state(struct drm_i915_error_state_buf
*m
,
17335 struct drm_i915_private
*dev_priv
,
17336 struct intel_display_error_state
*error
)
17343 err_printf(m
, "Num Pipes: %d\n", INTEL_INFO(dev_priv
)->num_pipes
);
17344 if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
))
17345 err_printf(m
, "PWR_WELL_CTL2: %08x\n",
17346 error
->power_well_driver
);
17347 for_each_pipe(dev_priv
, i
) {
17348 err_printf(m
, "Pipe [%d]:\n", i
);
17349 err_printf(m
, " Power: %s\n",
17350 onoff(error
->pipe
[i
].power_domain_on
));
17351 err_printf(m
, " SRC: %08x\n", error
->pipe
[i
].source
);
17352 err_printf(m
, " STAT: %08x\n", error
->pipe
[i
].stat
);
17354 err_printf(m
, "Plane [%d]:\n", i
);
17355 err_printf(m
, " CNTR: %08x\n", error
->plane
[i
].control
);
17356 err_printf(m
, " STRIDE: %08x\n", error
->plane
[i
].stride
);
17357 if (INTEL_GEN(dev_priv
) <= 3) {
17358 err_printf(m
, " SIZE: %08x\n", error
->plane
[i
].size
);
17359 err_printf(m
, " POS: %08x\n", error
->plane
[i
].pos
);
17361 if (INTEL_GEN(dev_priv
) <= 7 && !IS_HASWELL(dev_priv
))
17362 err_printf(m
, " ADDR: %08x\n", error
->plane
[i
].addr
);
17363 if (INTEL_GEN(dev_priv
) >= 4) {
17364 err_printf(m
, " SURF: %08x\n", error
->plane
[i
].surface
);
17365 err_printf(m
, " TILEOFF: %08x\n", error
->plane
[i
].tile_offset
);
17368 err_printf(m
, "Cursor [%d]:\n", i
);
17369 err_printf(m
, " CNTR: %08x\n", error
->cursor
[i
].control
);
17370 err_printf(m
, " POS: %08x\n", error
->cursor
[i
].position
);
17371 err_printf(m
, " BASE: %08x\n", error
->cursor
[i
].base
);
17374 for (i
= 0; i
< error
->num_transcoders
; i
++) {
17375 err_printf(m
, "CPU transcoder: %s\n",
17376 transcoder_name(error
->transcoder
[i
].cpu_transcoder
));
17377 err_printf(m
, " Power: %s\n",
17378 onoff(error
->transcoder
[i
].power_domain_on
));
17379 err_printf(m
, " CONF: %08x\n", error
->transcoder
[i
].conf
);
17380 err_printf(m
, " HTOTAL: %08x\n", error
->transcoder
[i
].htotal
);
17381 err_printf(m
, " HBLANK: %08x\n", error
->transcoder
[i
].hblank
);
17382 err_printf(m
, " HSYNC: %08x\n", error
->transcoder
[i
].hsync
);
17383 err_printf(m
, " VTOTAL: %08x\n", error
->transcoder
[i
].vtotal
);
17384 err_printf(m
, " VBLANK: %08x\n", error
->transcoder
[i
].vblank
);
17385 err_printf(m
, " VSYNC: %08x\n", error
->transcoder
[i
].vsync
);