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 "i915_gem_clflush.h"
41 #include "intel_dsi.h"
42 #include "i915_trace.h"
43 #include <drm/drm_atomic.h>
44 #include <drm/drm_atomic_helper.h>
45 #include <drm/drm_dp_helper.h>
46 #include <drm/drm_crtc_helper.h>
47 #include <drm/drm_plane_helper.h>
48 #include <drm/drm_rect.h>
49 #include <linux/dma_remapping.h>
50 #include <linux/reservation.h>
52 /* Primary plane formats for gen <= 3 */
53 static const uint32_t i8xx_primary_formats
[] = {
60 /* Primary plane formats for gen >= 4 */
61 static const uint32_t i965_primary_formats
[] = {
66 DRM_FORMAT_XRGB2101010
,
67 DRM_FORMAT_XBGR2101010
,
70 static const uint64_t i9xx_format_modifiers
[] = {
71 I915_FORMAT_MOD_X_TILED
,
72 DRM_FORMAT_MOD_LINEAR
,
73 DRM_FORMAT_MOD_INVALID
76 static const uint32_t skl_primary_formats
[] = {
83 DRM_FORMAT_XRGB2101010
,
84 DRM_FORMAT_XBGR2101010
,
91 static const uint64_t skl_format_modifiers_noccs
[] = {
92 I915_FORMAT_MOD_Yf_TILED
,
93 I915_FORMAT_MOD_Y_TILED
,
94 I915_FORMAT_MOD_X_TILED
,
95 DRM_FORMAT_MOD_LINEAR
,
96 DRM_FORMAT_MOD_INVALID
99 static const uint64_t skl_format_modifiers_ccs
[] = {
100 I915_FORMAT_MOD_Yf_TILED_CCS
,
101 I915_FORMAT_MOD_Y_TILED_CCS
,
102 I915_FORMAT_MOD_Yf_TILED
,
103 I915_FORMAT_MOD_Y_TILED
,
104 I915_FORMAT_MOD_X_TILED
,
105 DRM_FORMAT_MOD_LINEAR
,
106 DRM_FORMAT_MOD_INVALID
110 static const uint32_t intel_cursor_formats
[] = {
114 static const uint64_t cursor_format_modifiers
[] = {
115 DRM_FORMAT_MOD_LINEAR
,
116 DRM_FORMAT_MOD_INVALID
119 static void i9xx_crtc_clock_get(struct intel_crtc
*crtc
,
120 struct intel_crtc_state
*pipe_config
);
121 static void ironlake_pch_clock_get(struct intel_crtc
*crtc
,
122 struct intel_crtc_state
*pipe_config
);
124 static int intel_framebuffer_init(struct intel_framebuffer
*ifb
,
125 struct drm_i915_gem_object
*obj
,
126 struct drm_mode_fb_cmd2
*mode_cmd
);
127 static void i9xx_set_pipeconf(struct intel_crtc
*intel_crtc
);
128 static void intel_set_pipe_timings(struct intel_crtc
*intel_crtc
);
129 static void intel_set_pipe_src_size(struct intel_crtc
*intel_crtc
);
130 static void intel_cpu_transcoder_set_m_n(struct intel_crtc
*crtc
,
131 struct intel_link_m_n
*m_n
,
132 struct intel_link_m_n
*m2_n2
);
133 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
);
134 static void haswell_set_pipeconf(struct drm_crtc
*crtc
);
135 static void haswell_set_pipemisc(struct drm_crtc
*crtc
);
136 static void vlv_prepare_pll(struct intel_crtc
*crtc
,
137 const struct intel_crtc_state
*pipe_config
);
138 static void chv_prepare_pll(struct intel_crtc
*crtc
,
139 const struct intel_crtc_state
*pipe_config
);
140 static void intel_begin_crtc_commit(struct drm_crtc
*, struct drm_crtc_state
*);
141 static void intel_finish_crtc_commit(struct drm_crtc
*, struct drm_crtc_state
*);
142 static void intel_crtc_init_scalers(struct intel_crtc
*crtc
,
143 struct intel_crtc_state
*crtc_state
);
144 static void skylake_pfit_enable(struct intel_crtc
*crtc
);
145 static void ironlake_pfit_disable(struct intel_crtc
*crtc
, bool force
);
146 static void ironlake_pfit_enable(struct intel_crtc
*crtc
);
147 static void intel_modeset_setup_hw_state(struct drm_device
*dev
,
148 struct drm_modeset_acquire_ctx
*ctx
);
149 static void intel_pre_disable_primary_noatomic(struct drm_crtc
*crtc
);
154 } dot
, vco
, n
, m
, m1
, m2
, p
, p1
;
158 int p2_slow
, p2_fast
;
162 /* returns HPLL frequency in kHz */
163 int vlv_get_hpll_vco(struct drm_i915_private
*dev_priv
)
165 int hpll_freq
, vco_freq
[] = { 800, 1600, 2000, 2400 };
167 /* Obtain SKU information */
168 mutex_lock(&dev_priv
->sb_lock
);
169 hpll_freq
= vlv_cck_read(dev_priv
, CCK_FUSE_REG
) &
170 CCK_FUSE_HPLL_FREQ_MASK
;
171 mutex_unlock(&dev_priv
->sb_lock
);
173 return vco_freq
[hpll_freq
] * 1000;
176 int vlv_get_cck_clock(struct drm_i915_private
*dev_priv
,
177 const char *name
, u32 reg
, int ref_freq
)
182 mutex_lock(&dev_priv
->sb_lock
);
183 val
= vlv_cck_read(dev_priv
, reg
);
184 mutex_unlock(&dev_priv
->sb_lock
);
186 divider
= val
& CCK_FREQUENCY_VALUES
;
188 WARN((val
& CCK_FREQUENCY_STATUS
) !=
189 (divider
<< CCK_FREQUENCY_STATUS_SHIFT
),
190 "%s change in progress\n", name
);
192 return DIV_ROUND_CLOSEST(ref_freq
<< 1, divider
+ 1);
195 int vlv_get_cck_clock_hpll(struct drm_i915_private
*dev_priv
,
196 const char *name
, u32 reg
)
198 if (dev_priv
->hpll_freq
== 0)
199 dev_priv
->hpll_freq
= vlv_get_hpll_vco(dev_priv
);
201 return vlv_get_cck_clock(dev_priv
, name
, reg
,
202 dev_priv
->hpll_freq
);
205 static void intel_update_czclk(struct drm_i915_private
*dev_priv
)
207 if (!(IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)))
210 dev_priv
->czclk_freq
= vlv_get_cck_clock_hpll(dev_priv
, "czclk",
211 CCK_CZ_CLOCK_CONTROL
);
213 DRM_DEBUG_DRIVER("CZ clock rate: %d kHz\n", dev_priv
->czclk_freq
);
216 static inline u32
/* units of 100MHz */
217 intel_fdi_link_freq(struct drm_i915_private
*dev_priv
,
218 const struct intel_crtc_state
*pipe_config
)
220 if (HAS_DDI(dev_priv
))
221 return pipe_config
->port_clock
; /* SPLL */
222 else if (IS_GEN5(dev_priv
))
223 return ((I915_READ(FDI_PLL_BIOS_0
) & FDI_PLL_FB_CLOCK_MASK
) + 2) * 10000;
228 static const struct intel_limit intel_limits_i8xx_dac
= {
229 .dot
= { .min
= 25000, .max
= 350000 },
230 .vco
= { .min
= 908000, .max
= 1512000 },
231 .n
= { .min
= 2, .max
= 16 },
232 .m
= { .min
= 96, .max
= 140 },
233 .m1
= { .min
= 18, .max
= 26 },
234 .m2
= { .min
= 6, .max
= 16 },
235 .p
= { .min
= 4, .max
= 128 },
236 .p1
= { .min
= 2, .max
= 33 },
237 .p2
= { .dot_limit
= 165000,
238 .p2_slow
= 4, .p2_fast
= 2 },
241 static const struct intel_limit intel_limits_i8xx_dvo
= {
242 .dot
= { .min
= 25000, .max
= 350000 },
243 .vco
= { .min
= 908000, .max
= 1512000 },
244 .n
= { .min
= 2, .max
= 16 },
245 .m
= { .min
= 96, .max
= 140 },
246 .m1
= { .min
= 18, .max
= 26 },
247 .m2
= { .min
= 6, .max
= 16 },
248 .p
= { .min
= 4, .max
= 128 },
249 .p1
= { .min
= 2, .max
= 33 },
250 .p2
= { .dot_limit
= 165000,
251 .p2_slow
= 4, .p2_fast
= 4 },
254 static const struct intel_limit intel_limits_i8xx_lvds
= {
255 .dot
= { .min
= 25000, .max
= 350000 },
256 .vco
= { .min
= 908000, .max
= 1512000 },
257 .n
= { .min
= 2, .max
= 16 },
258 .m
= { .min
= 96, .max
= 140 },
259 .m1
= { .min
= 18, .max
= 26 },
260 .m2
= { .min
= 6, .max
= 16 },
261 .p
= { .min
= 4, .max
= 128 },
262 .p1
= { .min
= 1, .max
= 6 },
263 .p2
= { .dot_limit
= 165000,
264 .p2_slow
= 14, .p2_fast
= 7 },
267 static const struct intel_limit intel_limits_i9xx_sdvo
= {
268 .dot
= { .min
= 20000, .max
= 400000 },
269 .vco
= { .min
= 1400000, .max
= 2800000 },
270 .n
= { .min
= 1, .max
= 6 },
271 .m
= { .min
= 70, .max
= 120 },
272 .m1
= { .min
= 8, .max
= 18 },
273 .m2
= { .min
= 3, .max
= 7 },
274 .p
= { .min
= 5, .max
= 80 },
275 .p1
= { .min
= 1, .max
= 8 },
276 .p2
= { .dot_limit
= 200000,
277 .p2_slow
= 10, .p2_fast
= 5 },
280 static const struct intel_limit intel_limits_i9xx_lvds
= {
281 .dot
= { .min
= 20000, .max
= 400000 },
282 .vco
= { .min
= 1400000, .max
= 2800000 },
283 .n
= { .min
= 1, .max
= 6 },
284 .m
= { .min
= 70, .max
= 120 },
285 .m1
= { .min
= 8, .max
= 18 },
286 .m2
= { .min
= 3, .max
= 7 },
287 .p
= { .min
= 7, .max
= 98 },
288 .p1
= { .min
= 1, .max
= 8 },
289 .p2
= { .dot_limit
= 112000,
290 .p2_slow
= 14, .p2_fast
= 7 },
294 static const struct intel_limit intel_limits_g4x_sdvo
= {
295 .dot
= { .min
= 25000, .max
= 270000 },
296 .vco
= { .min
= 1750000, .max
= 3500000},
297 .n
= { .min
= 1, .max
= 4 },
298 .m
= { .min
= 104, .max
= 138 },
299 .m1
= { .min
= 17, .max
= 23 },
300 .m2
= { .min
= 5, .max
= 11 },
301 .p
= { .min
= 10, .max
= 30 },
302 .p1
= { .min
= 1, .max
= 3},
303 .p2
= { .dot_limit
= 270000,
309 static const struct intel_limit intel_limits_g4x_hdmi
= {
310 .dot
= { .min
= 22000, .max
= 400000 },
311 .vco
= { .min
= 1750000, .max
= 3500000},
312 .n
= { .min
= 1, .max
= 4 },
313 .m
= { .min
= 104, .max
= 138 },
314 .m1
= { .min
= 16, .max
= 23 },
315 .m2
= { .min
= 5, .max
= 11 },
316 .p
= { .min
= 5, .max
= 80 },
317 .p1
= { .min
= 1, .max
= 8},
318 .p2
= { .dot_limit
= 165000,
319 .p2_slow
= 10, .p2_fast
= 5 },
322 static const struct intel_limit intel_limits_g4x_single_channel_lvds
= {
323 .dot
= { .min
= 20000, .max
= 115000 },
324 .vco
= { .min
= 1750000, .max
= 3500000 },
325 .n
= { .min
= 1, .max
= 3 },
326 .m
= { .min
= 104, .max
= 138 },
327 .m1
= { .min
= 17, .max
= 23 },
328 .m2
= { .min
= 5, .max
= 11 },
329 .p
= { .min
= 28, .max
= 112 },
330 .p1
= { .min
= 2, .max
= 8 },
331 .p2
= { .dot_limit
= 0,
332 .p2_slow
= 14, .p2_fast
= 14
336 static const struct intel_limit intel_limits_g4x_dual_channel_lvds
= {
337 .dot
= { .min
= 80000, .max
= 224000 },
338 .vco
= { .min
= 1750000, .max
= 3500000 },
339 .n
= { .min
= 1, .max
= 3 },
340 .m
= { .min
= 104, .max
= 138 },
341 .m1
= { .min
= 17, .max
= 23 },
342 .m2
= { .min
= 5, .max
= 11 },
343 .p
= { .min
= 14, .max
= 42 },
344 .p1
= { .min
= 2, .max
= 6 },
345 .p2
= { .dot_limit
= 0,
346 .p2_slow
= 7, .p2_fast
= 7
350 static const struct intel_limit intel_limits_pineview_sdvo
= {
351 .dot
= { .min
= 20000, .max
= 400000},
352 .vco
= { .min
= 1700000, .max
= 3500000 },
353 /* Pineview's Ncounter is a ring counter */
354 .n
= { .min
= 3, .max
= 6 },
355 .m
= { .min
= 2, .max
= 256 },
356 /* Pineview only has one combined m divider, which we treat as m2. */
357 .m1
= { .min
= 0, .max
= 0 },
358 .m2
= { .min
= 0, .max
= 254 },
359 .p
= { .min
= 5, .max
= 80 },
360 .p1
= { .min
= 1, .max
= 8 },
361 .p2
= { .dot_limit
= 200000,
362 .p2_slow
= 10, .p2_fast
= 5 },
365 static const struct intel_limit intel_limits_pineview_lvds
= {
366 .dot
= { .min
= 20000, .max
= 400000 },
367 .vco
= { .min
= 1700000, .max
= 3500000 },
368 .n
= { .min
= 3, .max
= 6 },
369 .m
= { .min
= 2, .max
= 256 },
370 .m1
= { .min
= 0, .max
= 0 },
371 .m2
= { .min
= 0, .max
= 254 },
372 .p
= { .min
= 7, .max
= 112 },
373 .p1
= { .min
= 1, .max
= 8 },
374 .p2
= { .dot_limit
= 112000,
375 .p2_slow
= 14, .p2_fast
= 14 },
378 /* Ironlake / Sandybridge
380 * We calculate clock using (register_value + 2) for N/M1/M2, so here
381 * the range value for them is (actual_value - 2).
383 static const struct intel_limit intel_limits_ironlake_dac
= {
384 .dot
= { .min
= 25000, .max
= 350000 },
385 .vco
= { .min
= 1760000, .max
= 3510000 },
386 .n
= { .min
= 1, .max
= 5 },
387 .m
= { .min
= 79, .max
= 127 },
388 .m1
= { .min
= 12, .max
= 22 },
389 .m2
= { .min
= 5, .max
= 9 },
390 .p
= { .min
= 5, .max
= 80 },
391 .p1
= { .min
= 1, .max
= 8 },
392 .p2
= { .dot_limit
= 225000,
393 .p2_slow
= 10, .p2_fast
= 5 },
396 static const struct intel_limit intel_limits_ironlake_single_lvds
= {
397 .dot
= { .min
= 25000, .max
= 350000 },
398 .vco
= { .min
= 1760000, .max
= 3510000 },
399 .n
= { .min
= 1, .max
= 3 },
400 .m
= { .min
= 79, .max
= 118 },
401 .m1
= { .min
= 12, .max
= 22 },
402 .m2
= { .min
= 5, .max
= 9 },
403 .p
= { .min
= 28, .max
= 112 },
404 .p1
= { .min
= 2, .max
= 8 },
405 .p2
= { .dot_limit
= 225000,
406 .p2_slow
= 14, .p2_fast
= 14 },
409 static const struct intel_limit intel_limits_ironlake_dual_lvds
= {
410 .dot
= { .min
= 25000, .max
= 350000 },
411 .vco
= { .min
= 1760000, .max
= 3510000 },
412 .n
= { .min
= 1, .max
= 3 },
413 .m
= { .min
= 79, .max
= 127 },
414 .m1
= { .min
= 12, .max
= 22 },
415 .m2
= { .min
= 5, .max
= 9 },
416 .p
= { .min
= 14, .max
= 56 },
417 .p1
= { .min
= 2, .max
= 8 },
418 .p2
= { .dot_limit
= 225000,
419 .p2_slow
= 7, .p2_fast
= 7 },
422 /* LVDS 100mhz refclk limits. */
423 static const struct intel_limit intel_limits_ironlake_single_lvds_100m
= {
424 .dot
= { .min
= 25000, .max
= 350000 },
425 .vco
= { .min
= 1760000, .max
= 3510000 },
426 .n
= { .min
= 1, .max
= 2 },
427 .m
= { .min
= 79, .max
= 126 },
428 .m1
= { .min
= 12, .max
= 22 },
429 .m2
= { .min
= 5, .max
= 9 },
430 .p
= { .min
= 28, .max
= 112 },
431 .p1
= { .min
= 2, .max
= 8 },
432 .p2
= { .dot_limit
= 225000,
433 .p2_slow
= 14, .p2_fast
= 14 },
436 static const struct intel_limit intel_limits_ironlake_dual_lvds_100m
= {
437 .dot
= { .min
= 25000, .max
= 350000 },
438 .vco
= { .min
= 1760000, .max
= 3510000 },
439 .n
= { .min
= 1, .max
= 3 },
440 .m
= { .min
= 79, .max
= 126 },
441 .m1
= { .min
= 12, .max
= 22 },
442 .m2
= { .min
= 5, .max
= 9 },
443 .p
= { .min
= 14, .max
= 42 },
444 .p1
= { .min
= 2, .max
= 6 },
445 .p2
= { .dot_limit
= 225000,
446 .p2_slow
= 7, .p2_fast
= 7 },
449 static const struct intel_limit intel_limits_vlv
= {
451 * These are the data rate limits (measured in fast clocks)
452 * since those are the strictest limits we have. The fast
453 * clock and actual rate limits are more relaxed, so checking
454 * them would make no difference.
456 .dot
= { .min
= 25000 * 5, .max
= 270000 * 5 },
457 .vco
= { .min
= 4000000, .max
= 6000000 },
458 .n
= { .min
= 1, .max
= 7 },
459 .m1
= { .min
= 2, .max
= 3 },
460 .m2
= { .min
= 11, .max
= 156 },
461 .p1
= { .min
= 2, .max
= 3 },
462 .p2
= { .p2_slow
= 2, .p2_fast
= 20 }, /* slow=min, fast=max */
465 static const struct intel_limit intel_limits_chv
= {
467 * These are the data rate limits (measured in fast clocks)
468 * since those are the strictest limits we have. The fast
469 * clock and actual rate limits are more relaxed, so checking
470 * them would make no difference.
472 .dot
= { .min
= 25000 * 5, .max
= 540000 * 5},
473 .vco
= { .min
= 4800000, .max
= 6480000 },
474 .n
= { .min
= 1, .max
= 1 },
475 .m1
= { .min
= 2, .max
= 2 },
476 .m2
= { .min
= 24 << 22, .max
= 175 << 22 },
477 .p1
= { .min
= 2, .max
= 4 },
478 .p2
= { .p2_slow
= 1, .p2_fast
= 14 },
481 static const struct intel_limit intel_limits_bxt
= {
482 /* FIXME: find real dot limits */
483 .dot
= { .min
= 0, .max
= INT_MAX
},
484 .vco
= { .min
= 4800000, .max
= 6700000 },
485 .n
= { .min
= 1, .max
= 1 },
486 .m1
= { .min
= 2, .max
= 2 },
487 /* FIXME: find real m2 limits */
488 .m2
= { .min
= 2 << 22, .max
= 255 << 22 },
489 .p1
= { .min
= 2, .max
= 4 },
490 .p2
= { .p2_slow
= 1, .p2_fast
= 20 },
494 needs_modeset(struct drm_crtc_state
*state
)
496 return drm_atomic_crtc_needs_modeset(state
);
500 * Platform specific helpers to calculate the port PLL loopback- (clock.m),
501 * and post-divider (clock.p) values, pre- (clock.vco) and post-divided fast
502 * (clock.dot) clock rates. This fast dot clock is fed to the port's IO logic.
503 * The helpers' return value is the rate of the clock that is fed to the
504 * display engine's pipe which can be the above fast dot clock rate or a
505 * divided-down version of it.
507 /* m1 is reserved as 0 in Pineview, n is a ring counter */
508 static int pnv_calc_dpll_params(int refclk
, struct dpll
*clock
)
510 clock
->m
= clock
->m2
+ 2;
511 clock
->p
= clock
->p1
* clock
->p2
;
512 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
514 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
);
515 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
520 static uint32_t i9xx_dpll_compute_m(struct dpll
*dpll
)
522 return 5 * (dpll
->m1
+ 2) + (dpll
->m2
+ 2);
525 static int i9xx_calc_dpll_params(int refclk
, struct dpll
*clock
)
527 clock
->m
= i9xx_dpll_compute_m(clock
);
528 clock
->p
= clock
->p1
* clock
->p2
;
529 if (WARN_ON(clock
->n
+ 2 == 0 || clock
->p
== 0))
531 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
+ 2);
532 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
537 static int vlv_calc_dpll_params(int refclk
, struct dpll
*clock
)
539 clock
->m
= clock
->m1
* clock
->m2
;
540 clock
->p
= clock
->p1
* clock
->p2
;
541 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
543 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
);
544 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
546 return clock
->dot
/ 5;
549 int chv_calc_dpll_params(int refclk
, struct dpll
*clock
)
551 clock
->m
= clock
->m1
* clock
->m2
;
552 clock
->p
= clock
->p1
* clock
->p2
;
553 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
555 clock
->vco
= DIV_ROUND_CLOSEST_ULL((uint64_t)refclk
* clock
->m
,
557 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
559 return clock
->dot
/ 5;
562 #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
564 * Returns whether the given set of divisors are valid for a given refclk with
565 * the given connectors.
568 static bool intel_PLL_is_valid(struct drm_i915_private
*dev_priv
,
569 const struct intel_limit
*limit
,
570 const struct dpll
*clock
)
572 if (clock
->n
< limit
->n
.min
|| limit
->n
.max
< clock
->n
)
573 INTELPllInvalid("n out of range\n");
574 if (clock
->p1
< limit
->p1
.min
|| limit
->p1
.max
< clock
->p1
)
575 INTELPllInvalid("p1 out of range\n");
576 if (clock
->m2
< limit
->m2
.min
|| limit
->m2
.max
< clock
->m2
)
577 INTELPllInvalid("m2 out of range\n");
578 if (clock
->m1
< limit
->m1
.min
|| limit
->m1
.max
< clock
->m1
)
579 INTELPllInvalid("m1 out of range\n");
581 if (!IS_PINEVIEW(dev_priv
) && !IS_VALLEYVIEW(dev_priv
) &&
582 !IS_CHERRYVIEW(dev_priv
) && !IS_GEN9_LP(dev_priv
))
583 if (clock
->m1
<= clock
->m2
)
584 INTELPllInvalid("m1 <= m2\n");
586 if (!IS_VALLEYVIEW(dev_priv
) && !IS_CHERRYVIEW(dev_priv
) &&
587 !IS_GEN9_LP(dev_priv
)) {
588 if (clock
->p
< limit
->p
.min
|| limit
->p
.max
< clock
->p
)
589 INTELPllInvalid("p out of range\n");
590 if (clock
->m
< limit
->m
.min
|| limit
->m
.max
< clock
->m
)
591 INTELPllInvalid("m out of range\n");
594 if (clock
->vco
< limit
->vco
.min
|| limit
->vco
.max
< clock
->vco
)
595 INTELPllInvalid("vco out of range\n");
596 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
597 * connector, etc., rather than just a single range.
599 if (clock
->dot
< limit
->dot
.min
|| limit
->dot
.max
< clock
->dot
)
600 INTELPllInvalid("dot out of range\n");
606 i9xx_select_p2_div(const struct intel_limit
*limit
,
607 const struct intel_crtc_state
*crtc_state
,
610 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
612 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
614 * For LVDS just rely on its current settings for dual-channel.
615 * We haven't figured out how to reliably set up different
616 * single/dual channel state, if we even can.
618 if (intel_is_dual_link_lvds(dev
))
619 return limit
->p2
.p2_fast
;
621 return limit
->p2
.p2_slow
;
623 if (target
< limit
->p2
.dot_limit
)
624 return limit
->p2
.p2_slow
;
626 return limit
->p2
.p2_fast
;
631 * Returns a set of divisors for the desired target clock with the given
632 * refclk, or FALSE. The returned values represent the clock equation:
633 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
635 * Target and reference clocks are specified in kHz.
637 * If match_clock is provided, then best_clock P divider must match the P
638 * divider from @match_clock used for LVDS downclocking.
641 i9xx_find_best_dpll(const struct intel_limit
*limit
,
642 struct intel_crtc_state
*crtc_state
,
643 int target
, int refclk
, struct dpll
*match_clock
,
644 struct dpll
*best_clock
)
646 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
650 memset(best_clock
, 0, sizeof(*best_clock
));
652 clock
.p2
= i9xx_select_p2_div(limit
, crtc_state
, target
);
654 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
656 for (clock
.m2
= limit
->m2
.min
;
657 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
658 if (clock
.m2
>= clock
.m1
)
660 for (clock
.n
= limit
->n
.min
;
661 clock
.n
<= limit
->n
.max
; clock
.n
++) {
662 for (clock
.p1
= limit
->p1
.min
;
663 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
666 i9xx_calc_dpll_params(refclk
, &clock
);
667 if (!intel_PLL_is_valid(to_i915(dev
),
672 clock
.p
!= match_clock
->p
)
675 this_err
= abs(clock
.dot
- target
);
676 if (this_err
< err
) {
685 return (err
!= target
);
689 * Returns a set of divisors for the desired target clock with the given
690 * refclk, or FALSE. The returned values represent the clock equation:
691 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
693 * Target and reference clocks are specified in kHz.
695 * If match_clock is provided, then best_clock P divider must match the P
696 * divider from @match_clock used for LVDS downclocking.
699 pnv_find_best_dpll(const struct intel_limit
*limit
,
700 struct intel_crtc_state
*crtc_state
,
701 int target
, int refclk
, struct dpll
*match_clock
,
702 struct dpll
*best_clock
)
704 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
708 memset(best_clock
, 0, sizeof(*best_clock
));
710 clock
.p2
= i9xx_select_p2_div(limit
, crtc_state
, target
);
712 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
714 for (clock
.m2
= limit
->m2
.min
;
715 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
716 for (clock
.n
= limit
->n
.min
;
717 clock
.n
<= limit
->n
.max
; clock
.n
++) {
718 for (clock
.p1
= limit
->p1
.min
;
719 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
722 pnv_calc_dpll_params(refclk
, &clock
);
723 if (!intel_PLL_is_valid(to_i915(dev
),
728 clock
.p
!= match_clock
->p
)
731 this_err
= abs(clock
.dot
- target
);
732 if (this_err
< err
) {
741 return (err
!= target
);
745 * Returns a set of divisors for the desired target clock with the given
746 * refclk, or FALSE. The returned values represent the clock equation:
747 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
749 * Target and reference clocks are specified in kHz.
751 * If match_clock is provided, then best_clock P divider must match the P
752 * divider from @match_clock used for LVDS downclocking.
755 g4x_find_best_dpll(const struct intel_limit
*limit
,
756 struct intel_crtc_state
*crtc_state
,
757 int target
, int refclk
, struct dpll
*match_clock
,
758 struct dpll
*best_clock
)
760 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
764 /* approximately equals target * 0.00585 */
765 int err_most
= (target
>> 8) + (target
>> 9);
767 memset(best_clock
, 0, sizeof(*best_clock
));
769 clock
.p2
= i9xx_select_p2_div(limit
, crtc_state
, target
);
771 max_n
= limit
->n
.max
;
772 /* based on hardware requirement, prefer smaller n to precision */
773 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
774 /* based on hardware requirement, prefere larger m1,m2 */
775 for (clock
.m1
= limit
->m1
.max
;
776 clock
.m1
>= limit
->m1
.min
; clock
.m1
--) {
777 for (clock
.m2
= limit
->m2
.max
;
778 clock
.m2
>= limit
->m2
.min
; clock
.m2
--) {
779 for (clock
.p1
= limit
->p1
.max
;
780 clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
783 i9xx_calc_dpll_params(refclk
, &clock
);
784 if (!intel_PLL_is_valid(to_i915(dev
),
789 this_err
= abs(clock
.dot
- target
);
790 if (this_err
< err_most
) {
804 * Check if the calculated PLL configuration is more optimal compared to the
805 * best configuration and error found so far. Return the calculated error.
807 static bool vlv_PLL_is_optimal(struct drm_device
*dev
, int target_freq
,
808 const struct dpll
*calculated_clock
,
809 const struct dpll
*best_clock
,
810 unsigned int best_error_ppm
,
811 unsigned int *error_ppm
)
814 * For CHV ignore the error and consider only the P value.
815 * Prefer a bigger P value based on HW requirements.
817 if (IS_CHERRYVIEW(to_i915(dev
))) {
820 return calculated_clock
->p
> best_clock
->p
;
823 if (WARN_ON_ONCE(!target_freq
))
826 *error_ppm
= div_u64(1000000ULL *
827 abs(target_freq
- calculated_clock
->dot
),
830 * Prefer a better P value over a better (smaller) error if the error
831 * is small. Ensure this preference for future configurations too by
832 * setting the error to 0.
834 if (*error_ppm
< 100 && calculated_clock
->p
> best_clock
->p
) {
840 return *error_ppm
+ 10 < best_error_ppm
;
844 * Returns a set of divisors for the desired target clock with the given
845 * refclk, or FALSE. The returned values represent the clock equation:
846 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
849 vlv_find_best_dpll(const struct intel_limit
*limit
,
850 struct intel_crtc_state
*crtc_state
,
851 int target
, int refclk
, struct dpll
*match_clock
,
852 struct dpll
*best_clock
)
854 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
855 struct drm_device
*dev
= crtc
->base
.dev
;
857 unsigned int bestppm
= 1000000;
858 /* min update 19.2 MHz */
859 int max_n
= min(limit
->n
.max
, refclk
/ 19200);
862 target
*= 5; /* fast clock */
864 memset(best_clock
, 0, sizeof(*best_clock
));
866 /* based on hardware requirement, prefer smaller n to precision */
867 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
868 for (clock
.p1
= limit
->p1
.max
; clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
869 for (clock
.p2
= limit
->p2
.p2_fast
; clock
.p2
>= limit
->p2
.p2_slow
;
870 clock
.p2
-= clock
.p2
> 10 ? 2 : 1) {
871 clock
.p
= clock
.p1
* clock
.p2
;
872 /* based on hardware requirement, prefer bigger m1,m2 values */
873 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
; clock
.m1
++) {
876 clock
.m2
= DIV_ROUND_CLOSEST(target
* clock
.p
* clock
.n
,
879 vlv_calc_dpll_params(refclk
, &clock
);
881 if (!intel_PLL_is_valid(to_i915(dev
),
886 if (!vlv_PLL_is_optimal(dev
, target
,
904 * Returns a set of divisors for the desired target clock with the given
905 * refclk, or FALSE. The returned values represent the clock equation:
906 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
909 chv_find_best_dpll(const struct intel_limit
*limit
,
910 struct intel_crtc_state
*crtc_state
,
911 int target
, int refclk
, struct dpll
*match_clock
,
912 struct dpll
*best_clock
)
914 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
915 struct drm_device
*dev
= crtc
->base
.dev
;
916 unsigned int best_error_ppm
;
921 memset(best_clock
, 0, sizeof(*best_clock
));
922 best_error_ppm
= 1000000;
925 * Based on hardware doc, the n always set to 1, and m1 always
926 * set to 2. If requires to support 200Mhz refclk, we need to
927 * revisit this because n may not 1 anymore.
929 clock
.n
= 1, clock
.m1
= 2;
930 target
*= 5; /* fast clock */
932 for (clock
.p1
= limit
->p1
.max
; clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
933 for (clock
.p2
= limit
->p2
.p2_fast
;
934 clock
.p2
>= limit
->p2
.p2_slow
;
935 clock
.p2
-= clock
.p2
> 10 ? 2 : 1) {
936 unsigned int error_ppm
;
938 clock
.p
= clock
.p1
* clock
.p2
;
940 m2
= DIV_ROUND_CLOSEST_ULL(((uint64_t)target
* clock
.p
*
941 clock
.n
) << 22, refclk
* clock
.m1
);
943 if (m2
> INT_MAX
/clock
.m1
)
948 chv_calc_dpll_params(refclk
, &clock
);
950 if (!intel_PLL_is_valid(to_i915(dev
), limit
, &clock
))
953 if (!vlv_PLL_is_optimal(dev
, target
, &clock
, best_clock
,
954 best_error_ppm
, &error_ppm
))
958 best_error_ppm
= error_ppm
;
966 bool bxt_find_best_dpll(struct intel_crtc_state
*crtc_state
, int target_clock
,
967 struct dpll
*best_clock
)
970 const struct intel_limit
*limit
= &intel_limits_bxt
;
972 return chv_find_best_dpll(limit
, crtc_state
,
973 target_clock
, refclk
, NULL
, best_clock
);
976 bool intel_crtc_active(struct intel_crtc
*crtc
)
978 /* Be paranoid as we can arrive here with only partial
979 * state retrieved from the hardware during setup.
981 * We can ditch the adjusted_mode.crtc_clock check as soon
982 * as Haswell has gained clock readout/fastboot support.
984 * We can ditch the crtc->primary->fb check as soon as we can
985 * properly reconstruct framebuffers.
987 * FIXME: The intel_crtc->active here should be switched to
988 * crtc->state->active once we have proper CRTC states wired up
991 return crtc
->active
&& crtc
->base
.primary
->state
->fb
&&
992 crtc
->config
->base
.adjusted_mode
.crtc_clock
;
995 enum transcoder
intel_pipe_to_cpu_transcoder(struct drm_i915_private
*dev_priv
,
998 struct intel_crtc
*crtc
= intel_get_crtc_for_pipe(dev_priv
, pipe
);
1000 return crtc
->config
->cpu_transcoder
;
1003 static bool pipe_scanline_is_moving(struct drm_i915_private
*dev_priv
,
1006 i915_reg_t reg
= PIPEDSL(pipe
);
1010 if (IS_GEN2(dev_priv
))
1011 line_mask
= DSL_LINEMASK_GEN2
;
1013 line_mask
= DSL_LINEMASK_GEN3
;
1015 line1
= I915_READ(reg
) & line_mask
;
1017 line2
= I915_READ(reg
) & line_mask
;
1019 return line1
!= line2
;
1022 static void wait_for_pipe_scanline_moving(struct intel_crtc
*crtc
, bool state
)
1024 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1025 enum pipe pipe
= crtc
->pipe
;
1027 /* Wait for the display line to settle/start moving */
1028 if (wait_for(pipe_scanline_is_moving(dev_priv
, pipe
) == state
, 100))
1029 DRM_ERROR("pipe %c scanline %s wait timed out\n",
1030 pipe_name(pipe
), onoff(state
));
1033 static void intel_wait_for_pipe_scanline_stopped(struct intel_crtc
*crtc
)
1035 wait_for_pipe_scanline_moving(crtc
, false);
1038 static void intel_wait_for_pipe_scanline_moving(struct intel_crtc
*crtc
)
1040 wait_for_pipe_scanline_moving(crtc
, true);
1044 * intel_wait_for_pipe_off - wait for pipe to turn off
1045 * @crtc: crtc whose pipe to wait for
1047 * After disabling a pipe, we can't wait for vblank in the usual way,
1048 * spinning on the vblank interrupt status bit, since we won't actually
1049 * see an interrupt when the pipe is disabled.
1051 * On Gen4 and above:
1052 * wait for the pipe register state bit to turn off
1055 * wait for the display line value to settle (it usually
1056 * ends up stopping at the start of the next frame).
1059 static void intel_wait_for_pipe_off(struct intel_crtc
*crtc
)
1061 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1062 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
1064 if (INTEL_GEN(dev_priv
) >= 4) {
1065 i915_reg_t reg
= PIPECONF(cpu_transcoder
);
1067 /* Wait for the Pipe State to go off */
1068 if (intel_wait_for_register(dev_priv
,
1069 reg
, I965_PIPECONF_ACTIVE
, 0,
1071 WARN(1, "pipe_off wait timed out\n");
1073 intel_wait_for_pipe_scanline_stopped(crtc
);
1077 /* Only for pre-ILK configs */
1078 void assert_pll(struct drm_i915_private
*dev_priv
,
1079 enum pipe pipe
, bool state
)
1084 val
= I915_READ(DPLL(pipe
));
1085 cur_state
= !!(val
& DPLL_VCO_ENABLE
);
1086 I915_STATE_WARN(cur_state
!= state
,
1087 "PLL state assertion failure (expected %s, current %s)\n",
1088 onoff(state
), onoff(cur_state
));
1091 /* XXX: the dsi pll is shared between MIPI DSI ports */
1092 void assert_dsi_pll(struct drm_i915_private
*dev_priv
, bool state
)
1097 mutex_lock(&dev_priv
->sb_lock
);
1098 val
= vlv_cck_read(dev_priv
, CCK_REG_DSI_PLL_CONTROL
);
1099 mutex_unlock(&dev_priv
->sb_lock
);
1101 cur_state
= val
& DSI_PLL_VCO_EN
;
1102 I915_STATE_WARN(cur_state
!= state
,
1103 "DSI PLL state assertion failure (expected %s, current %s)\n",
1104 onoff(state
), onoff(cur_state
));
1107 static void assert_fdi_tx(struct drm_i915_private
*dev_priv
,
1108 enum pipe pipe
, bool state
)
1111 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1114 if (HAS_DDI(dev_priv
)) {
1115 /* DDI does not have a specific FDI_TX register */
1116 u32 val
= I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder
));
1117 cur_state
= !!(val
& TRANS_DDI_FUNC_ENABLE
);
1119 u32 val
= I915_READ(FDI_TX_CTL(pipe
));
1120 cur_state
= !!(val
& FDI_TX_ENABLE
);
1122 I915_STATE_WARN(cur_state
!= state
,
1123 "FDI TX state assertion failure (expected %s, current %s)\n",
1124 onoff(state
), onoff(cur_state
));
1126 #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
1127 #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
1129 static void assert_fdi_rx(struct drm_i915_private
*dev_priv
,
1130 enum pipe pipe
, bool state
)
1135 val
= I915_READ(FDI_RX_CTL(pipe
));
1136 cur_state
= !!(val
& FDI_RX_ENABLE
);
1137 I915_STATE_WARN(cur_state
!= state
,
1138 "FDI RX state assertion failure (expected %s, current %s)\n",
1139 onoff(state
), onoff(cur_state
));
1141 #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
1142 #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
1144 static void assert_fdi_tx_pll_enabled(struct drm_i915_private
*dev_priv
,
1149 /* ILK FDI PLL is always enabled */
1150 if (IS_GEN5(dev_priv
))
1153 /* On Haswell, DDI ports are responsible for the FDI PLL setup */
1154 if (HAS_DDI(dev_priv
))
1157 val
= I915_READ(FDI_TX_CTL(pipe
));
1158 I915_STATE_WARN(!(val
& FDI_TX_PLL_ENABLE
), "FDI TX PLL assertion failure, should be active but is disabled\n");
1161 void assert_fdi_rx_pll(struct drm_i915_private
*dev_priv
,
1162 enum pipe pipe
, bool state
)
1167 val
= I915_READ(FDI_RX_CTL(pipe
));
1168 cur_state
= !!(val
& FDI_RX_PLL_ENABLE
);
1169 I915_STATE_WARN(cur_state
!= state
,
1170 "FDI RX PLL assertion failure (expected %s, current %s)\n",
1171 onoff(state
), onoff(cur_state
));
1174 void assert_panel_unlocked(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1178 enum pipe panel_pipe
= PIPE_A
;
1181 if (WARN_ON(HAS_DDI(dev_priv
)))
1184 if (HAS_PCH_SPLIT(dev_priv
)) {
1187 pp_reg
= PP_CONTROL(0);
1188 port_sel
= I915_READ(PP_ON_DELAYS(0)) & PANEL_PORT_SELECT_MASK
;
1190 if (port_sel
== PANEL_PORT_SELECT_LVDS
&&
1191 I915_READ(PCH_LVDS
) & LVDS_PIPEB_SELECT
)
1192 panel_pipe
= PIPE_B
;
1193 /* XXX: else fix for eDP */
1194 } else if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) {
1195 /* presumably write lock depends on pipe, not port select */
1196 pp_reg
= PP_CONTROL(pipe
);
1199 pp_reg
= PP_CONTROL(0);
1200 if (I915_READ(LVDS
) & LVDS_PIPEB_SELECT
)
1201 panel_pipe
= PIPE_B
;
1204 val
= I915_READ(pp_reg
);
1205 if (!(val
& PANEL_POWER_ON
) ||
1206 ((val
& PANEL_UNLOCK_MASK
) == PANEL_UNLOCK_REGS
))
1209 I915_STATE_WARN(panel_pipe
== pipe
&& locked
,
1210 "panel assertion failure, pipe %c regs locked\n",
1214 void assert_pipe(struct drm_i915_private
*dev_priv
,
1215 enum pipe pipe
, bool state
)
1218 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1220 enum intel_display_power_domain power_domain
;
1222 /* we keep both pipes enabled on 830 */
1223 if (IS_I830(dev_priv
))
1226 power_domain
= POWER_DOMAIN_TRANSCODER(cpu_transcoder
);
1227 if (intel_display_power_get_if_enabled(dev_priv
, power_domain
)) {
1228 u32 val
= I915_READ(PIPECONF(cpu_transcoder
));
1229 cur_state
= !!(val
& PIPECONF_ENABLE
);
1231 intel_display_power_put(dev_priv
, power_domain
);
1236 I915_STATE_WARN(cur_state
!= state
,
1237 "pipe %c assertion failure (expected %s, current %s)\n",
1238 pipe_name(pipe
), onoff(state
), onoff(cur_state
));
1241 static void assert_plane(struct intel_plane
*plane
, bool state
)
1243 bool cur_state
= plane
->get_hw_state(plane
);
1245 I915_STATE_WARN(cur_state
!= state
,
1246 "%s assertion failure (expected %s, current %s)\n",
1247 plane
->base
.name
, onoff(state
), onoff(cur_state
));
1250 #define assert_plane_enabled(p) assert_plane(p, true)
1251 #define assert_plane_disabled(p) assert_plane(p, false)
1253 static void assert_planes_disabled(struct intel_crtc
*crtc
)
1255 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1256 struct intel_plane
*plane
;
1258 for_each_intel_plane_on_crtc(&dev_priv
->drm
, crtc
, plane
)
1259 assert_plane_disabled(plane
);
1262 static void assert_vblank_disabled(struct drm_crtc
*crtc
)
1264 if (I915_STATE_WARN_ON(drm_crtc_vblank_get(crtc
) == 0))
1265 drm_crtc_vblank_put(crtc
);
1268 void assert_pch_transcoder_disabled(struct drm_i915_private
*dev_priv
,
1274 val
= I915_READ(PCH_TRANSCONF(pipe
));
1275 enabled
= !!(val
& TRANS_ENABLE
);
1276 I915_STATE_WARN(enabled
,
1277 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1281 static bool dp_pipe_enabled(struct drm_i915_private
*dev_priv
,
1282 enum pipe pipe
, u32 port_sel
, u32 val
)
1284 if ((val
& DP_PORT_EN
) == 0)
1287 if (HAS_PCH_CPT(dev_priv
)) {
1288 u32 trans_dp_ctl
= I915_READ(TRANS_DP_CTL(pipe
));
1289 if ((trans_dp_ctl
& TRANS_DP_PORT_SEL_MASK
) != port_sel
)
1291 } else if (IS_CHERRYVIEW(dev_priv
)) {
1292 if ((val
& DP_PIPE_MASK_CHV
) != DP_PIPE_SELECT_CHV(pipe
))
1295 if ((val
& DP_PIPE_MASK
) != (pipe
<< 30))
1301 static bool hdmi_pipe_enabled(struct drm_i915_private
*dev_priv
,
1302 enum pipe pipe
, u32 val
)
1304 if ((val
& SDVO_ENABLE
) == 0)
1307 if (HAS_PCH_CPT(dev_priv
)) {
1308 if ((val
& SDVO_PIPE_SEL_MASK_CPT
) != SDVO_PIPE_SEL_CPT(pipe
))
1310 } else if (IS_CHERRYVIEW(dev_priv
)) {
1311 if ((val
& SDVO_PIPE_SEL_MASK_CHV
) != SDVO_PIPE_SEL_CHV(pipe
))
1314 if ((val
& SDVO_PIPE_SEL_MASK
) != SDVO_PIPE_SEL(pipe
))
1320 static bool lvds_pipe_enabled(struct drm_i915_private
*dev_priv
,
1321 enum pipe pipe
, u32 val
)
1323 if ((val
& LVDS_PORT_EN
) == 0)
1326 if (HAS_PCH_CPT(dev_priv
)) {
1327 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1330 if ((val
& LVDS_PIPE_MASK
) != LVDS_PIPE(pipe
))
1336 static bool adpa_pipe_enabled(struct drm_i915_private
*dev_priv
,
1337 enum pipe pipe
, u32 val
)
1339 if ((val
& ADPA_DAC_ENABLE
) == 0)
1341 if (HAS_PCH_CPT(dev_priv
)) {
1342 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1345 if ((val
& ADPA_PIPE_SELECT_MASK
) != ADPA_PIPE_SELECT(pipe
))
1351 static void assert_pch_dp_disabled(struct drm_i915_private
*dev_priv
,
1352 enum pipe pipe
, i915_reg_t reg
,
1355 u32 val
= I915_READ(reg
);
1356 I915_STATE_WARN(dp_pipe_enabled(dev_priv
, pipe
, port_sel
, val
),
1357 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
1358 i915_mmio_reg_offset(reg
), pipe_name(pipe
));
1360 I915_STATE_WARN(HAS_PCH_IBX(dev_priv
) && (val
& DP_PORT_EN
) == 0
1361 && (val
& DP_PIPEB_SELECT
),
1362 "IBX PCH dp port still using transcoder B\n");
1365 static void assert_pch_hdmi_disabled(struct drm_i915_private
*dev_priv
,
1366 enum pipe pipe
, i915_reg_t reg
)
1368 u32 val
= I915_READ(reg
);
1369 I915_STATE_WARN(hdmi_pipe_enabled(dev_priv
, pipe
, val
),
1370 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
1371 i915_mmio_reg_offset(reg
), pipe_name(pipe
));
1373 I915_STATE_WARN(HAS_PCH_IBX(dev_priv
) && (val
& SDVO_ENABLE
) == 0
1374 && (val
& SDVO_PIPE_B_SELECT
),
1375 "IBX PCH hdmi port still using transcoder B\n");
1378 static void assert_pch_ports_disabled(struct drm_i915_private
*dev_priv
,
1383 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_B
, TRANS_DP_PORT_SEL_B
);
1384 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_C
, TRANS_DP_PORT_SEL_C
);
1385 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_D
, TRANS_DP_PORT_SEL_D
);
1387 val
= I915_READ(PCH_ADPA
);
1388 I915_STATE_WARN(adpa_pipe_enabled(dev_priv
, pipe
, val
),
1389 "PCH VGA enabled on transcoder %c, should be disabled\n",
1392 val
= I915_READ(PCH_LVDS
);
1393 I915_STATE_WARN(lvds_pipe_enabled(dev_priv
, pipe
, val
),
1394 "PCH LVDS enabled on transcoder %c, should be disabled\n",
1397 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIB
);
1398 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIC
);
1399 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMID
);
1402 static void _vlv_enable_pll(struct intel_crtc
*crtc
,
1403 const struct intel_crtc_state
*pipe_config
)
1405 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1406 enum pipe pipe
= crtc
->pipe
;
1408 I915_WRITE(DPLL(pipe
), pipe_config
->dpll_hw_state
.dpll
);
1409 POSTING_READ(DPLL(pipe
));
1412 if (intel_wait_for_register(dev_priv
,
1417 DRM_ERROR("DPLL %d failed to lock\n", pipe
);
1420 static void vlv_enable_pll(struct intel_crtc
*crtc
,
1421 const struct intel_crtc_state
*pipe_config
)
1423 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1424 enum pipe pipe
= crtc
->pipe
;
1426 assert_pipe_disabled(dev_priv
, pipe
);
1428 /* PLL is protected by panel, make sure we can write it */
1429 assert_panel_unlocked(dev_priv
, pipe
);
1431 if (pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
)
1432 _vlv_enable_pll(crtc
, pipe_config
);
1434 I915_WRITE(DPLL_MD(pipe
), pipe_config
->dpll_hw_state
.dpll_md
);
1435 POSTING_READ(DPLL_MD(pipe
));
1439 static void _chv_enable_pll(struct intel_crtc
*crtc
,
1440 const struct intel_crtc_state
*pipe_config
)
1442 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1443 enum pipe pipe
= crtc
->pipe
;
1444 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
1447 mutex_lock(&dev_priv
->sb_lock
);
1449 /* Enable back the 10bit clock to display controller */
1450 tmp
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
));
1451 tmp
|= DPIO_DCLKP_EN
;
1452 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
), tmp
);
1454 mutex_unlock(&dev_priv
->sb_lock
);
1457 * Need to wait > 100ns between dclkp clock enable bit and PLL enable.
1462 I915_WRITE(DPLL(pipe
), pipe_config
->dpll_hw_state
.dpll
);
1464 /* Check PLL is locked */
1465 if (intel_wait_for_register(dev_priv
,
1466 DPLL(pipe
), DPLL_LOCK_VLV
, DPLL_LOCK_VLV
,
1468 DRM_ERROR("PLL %d failed to lock\n", pipe
);
1471 static void chv_enable_pll(struct intel_crtc
*crtc
,
1472 const struct intel_crtc_state
*pipe_config
)
1474 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1475 enum pipe pipe
= crtc
->pipe
;
1477 assert_pipe_disabled(dev_priv
, pipe
);
1479 /* PLL is protected by panel, make sure we can write it */
1480 assert_panel_unlocked(dev_priv
, pipe
);
1482 if (pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
)
1483 _chv_enable_pll(crtc
, pipe_config
);
1485 if (pipe
!= PIPE_A
) {
1487 * WaPixelRepeatModeFixForC0:chv
1489 * DPLLCMD is AWOL. Use chicken bits to propagate
1490 * the value from DPLLBMD to either pipe B or C.
1492 I915_WRITE(CBR4_VLV
, CBR_DPLLBMD_PIPE(pipe
));
1493 I915_WRITE(DPLL_MD(PIPE_B
), pipe_config
->dpll_hw_state
.dpll_md
);
1494 I915_WRITE(CBR4_VLV
, 0);
1495 dev_priv
->chv_dpll_md
[pipe
] = pipe_config
->dpll_hw_state
.dpll_md
;
1498 * DPLLB VGA mode also seems to cause problems.
1499 * We should always have it disabled.
1501 WARN_ON((I915_READ(DPLL(PIPE_B
)) & DPLL_VGA_MODE_DIS
) == 0);
1503 I915_WRITE(DPLL_MD(pipe
), pipe_config
->dpll_hw_state
.dpll_md
);
1504 POSTING_READ(DPLL_MD(pipe
));
1508 static int intel_num_dvo_pipes(struct drm_i915_private
*dev_priv
)
1510 struct intel_crtc
*crtc
;
1513 for_each_intel_crtc(&dev_priv
->drm
, crtc
) {
1514 count
+= crtc
->base
.state
->active
&&
1515 intel_crtc_has_type(crtc
->config
, INTEL_OUTPUT_DVO
);
1521 static void i9xx_enable_pll(struct intel_crtc
*crtc
,
1522 const struct intel_crtc_state
*crtc_state
)
1524 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1525 i915_reg_t reg
= DPLL(crtc
->pipe
);
1526 u32 dpll
= crtc_state
->dpll_hw_state
.dpll
;
1529 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1531 /* PLL is protected by panel, make sure we can write it */
1532 if (IS_MOBILE(dev_priv
) && !IS_I830(dev_priv
))
1533 assert_panel_unlocked(dev_priv
, crtc
->pipe
);
1535 /* Enable DVO 2x clock on both PLLs if necessary */
1536 if (IS_I830(dev_priv
) && intel_num_dvo_pipes(dev_priv
) > 0) {
1538 * It appears to be important that we don't enable this
1539 * for the current pipe before otherwise configuring the
1540 * PLL. No idea how this should be handled if multiple
1541 * DVO outputs are enabled simultaneosly.
1543 dpll
|= DPLL_DVO_2X_MODE
;
1544 I915_WRITE(DPLL(!crtc
->pipe
),
1545 I915_READ(DPLL(!crtc
->pipe
)) | DPLL_DVO_2X_MODE
);
1549 * Apparently we need to have VGA mode enabled prior to changing
1550 * the P1/P2 dividers. Otherwise the DPLL will keep using the old
1551 * dividers, even though the register value does change.
1555 I915_WRITE(reg
, dpll
);
1557 /* Wait for the clocks to stabilize. */
1561 if (INTEL_GEN(dev_priv
) >= 4) {
1562 I915_WRITE(DPLL_MD(crtc
->pipe
),
1563 crtc_state
->dpll_hw_state
.dpll_md
);
1565 /* The pixel multiplier can only be updated once the
1566 * DPLL is enabled and the clocks are stable.
1568 * So write it again.
1570 I915_WRITE(reg
, dpll
);
1573 /* We do this three times for luck */
1574 for (i
= 0; i
< 3; i
++) {
1575 I915_WRITE(reg
, dpll
);
1577 udelay(150); /* wait for warmup */
1581 static void i9xx_disable_pll(struct intel_crtc
*crtc
)
1583 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1584 enum pipe pipe
= crtc
->pipe
;
1586 /* Disable DVO 2x clock on both PLLs if necessary */
1587 if (IS_I830(dev_priv
) &&
1588 intel_crtc_has_type(crtc
->config
, INTEL_OUTPUT_DVO
) &&
1589 !intel_num_dvo_pipes(dev_priv
)) {
1590 I915_WRITE(DPLL(PIPE_B
),
1591 I915_READ(DPLL(PIPE_B
)) & ~DPLL_DVO_2X_MODE
);
1592 I915_WRITE(DPLL(PIPE_A
),
1593 I915_READ(DPLL(PIPE_A
)) & ~DPLL_DVO_2X_MODE
);
1596 /* Don't disable pipe or pipe PLLs if needed */
1597 if (IS_I830(dev_priv
))
1600 /* Make sure the pipe isn't still relying on us */
1601 assert_pipe_disabled(dev_priv
, pipe
);
1603 I915_WRITE(DPLL(pipe
), DPLL_VGA_MODE_DIS
);
1604 POSTING_READ(DPLL(pipe
));
1607 static void vlv_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1611 /* Make sure the pipe isn't still relying on us */
1612 assert_pipe_disabled(dev_priv
, pipe
);
1614 val
= DPLL_INTEGRATED_REF_CLK_VLV
|
1615 DPLL_REF_CLK_ENABLE_VLV
| DPLL_VGA_MODE_DIS
;
1617 val
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
1619 I915_WRITE(DPLL(pipe
), val
);
1620 POSTING_READ(DPLL(pipe
));
1623 static void chv_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1625 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
1628 /* Make sure the pipe isn't still relying on us */
1629 assert_pipe_disabled(dev_priv
, pipe
);
1631 val
= DPLL_SSC_REF_CLK_CHV
|
1632 DPLL_REF_CLK_ENABLE_VLV
| DPLL_VGA_MODE_DIS
;
1634 val
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
1636 I915_WRITE(DPLL(pipe
), val
);
1637 POSTING_READ(DPLL(pipe
));
1639 mutex_lock(&dev_priv
->sb_lock
);
1641 /* Disable 10bit clock to display controller */
1642 val
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
));
1643 val
&= ~DPIO_DCLKP_EN
;
1644 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
), val
);
1646 mutex_unlock(&dev_priv
->sb_lock
);
1649 void vlv_wait_port_ready(struct drm_i915_private
*dev_priv
,
1650 struct intel_digital_port
*dport
,
1651 unsigned int expected_mask
)
1654 i915_reg_t dpll_reg
;
1656 switch (dport
->port
) {
1658 port_mask
= DPLL_PORTB_READY_MASK
;
1662 port_mask
= DPLL_PORTC_READY_MASK
;
1664 expected_mask
<<= 4;
1667 port_mask
= DPLL_PORTD_READY_MASK
;
1668 dpll_reg
= DPIO_PHY_STATUS
;
1674 if (intel_wait_for_register(dev_priv
,
1675 dpll_reg
, port_mask
, expected_mask
,
1677 WARN(1, "timed out waiting for port %c ready: got 0x%x, expected 0x%x\n",
1678 port_name(dport
->port
), I915_READ(dpll_reg
) & port_mask
, expected_mask
);
1681 static void ironlake_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1684 struct intel_crtc
*intel_crtc
= intel_get_crtc_for_pipe(dev_priv
,
1687 uint32_t val
, pipeconf_val
;
1689 /* Make sure PCH DPLL is enabled */
1690 assert_shared_dpll_enabled(dev_priv
, intel_crtc
->config
->shared_dpll
);
1692 /* FDI must be feeding us bits for PCH ports */
1693 assert_fdi_tx_enabled(dev_priv
, pipe
);
1694 assert_fdi_rx_enabled(dev_priv
, pipe
);
1696 if (HAS_PCH_CPT(dev_priv
)) {
1697 /* Workaround: Set the timing override bit before enabling the
1698 * pch transcoder. */
1699 reg
= TRANS_CHICKEN2(pipe
);
1700 val
= I915_READ(reg
);
1701 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
1702 I915_WRITE(reg
, val
);
1705 reg
= PCH_TRANSCONF(pipe
);
1706 val
= I915_READ(reg
);
1707 pipeconf_val
= I915_READ(PIPECONF(pipe
));
1709 if (HAS_PCH_IBX(dev_priv
)) {
1711 * Make the BPC in transcoder be consistent with
1712 * that in pipeconf reg. For HDMI we must use 8bpc
1713 * here for both 8bpc and 12bpc.
1715 val
&= ~PIPECONF_BPC_MASK
;
1716 if (intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_HDMI
))
1717 val
|= PIPECONF_8BPC
;
1719 val
|= pipeconf_val
& PIPECONF_BPC_MASK
;
1722 val
&= ~TRANS_INTERLACE_MASK
;
1723 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK
) == PIPECONF_INTERLACED_ILK
)
1724 if (HAS_PCH_IBX(dev_priv
) &&
1725 intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_SDVO
))
1726 val
|= TRANS_LEGACY_INTERLACED_ILK
;
1728 val
|= TRANS_INTERLACED
;
1730 val
|= TRANS_PROGRESSIVE
;
1732 I915_WRITE(reg
, val
| TRANS_ENABLE
);
1733 if (intel_wait_for_register(dev_priv
,
1734 reg
, TRANS_STATE_ENABLE
, TRANS_STATE_ENABLE
,
1736 DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe
));
1739 static void lpt_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1740 enum transcoder cpu_transcoder
)
1742 u32 val
, pipeconf_val
;
1744 /* FDI must be feeding us bits for PCH ports */
1745 assert_fdi_tx_enabled(dev_priv
, (enum pipe
) cpu_transcoder
);
1746 assert_fdi_rx_enabled(dev_priv
, PIPE_A
);
1748 /* Workaround: set timing override bit. */
1749 val
= I915_READ(TRANS_CHICKEN2(PIPE_A
));
1750 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
1751 I915_WRITE(TRANS_CHICKEN2(PIPE_A
), val
);
1754 pipeconf_val
= I915_READ(PIPECONF(cpu_transcoder
));
1756 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK_HSW
) ==
1757 PIPECONF_INTERLACED_ILK
)
1758 val
|= TRANS_INTERLACED
;
1760 val
|= TRANS_PROGRESSIVE
;
1762 I915_WRITE(LPT_TRANSCONF
, val
);
1763 if (intel_wait_for_register(dev_priv
,
1768 DRM_ERROR("Failed to enable PCH transcoder\n");
1771 static void ironlake_disable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1777 /* FDI relies on the transcoder */
1778 assert_fdi_tx_disabled(dev_priv
, pipe
);
1779 assert_fdi_rx_disabled(dev_priv
, pipe
);
1781 /* Ports must be off as well */
1782 assert_pch_ports_disabled(dev_priv
, pipe
);
1784 reg
= PCH_TRANSCONF(pipe
);
1785 val
= I915_READ(reg
);
1786 val
&= ~TRANS_ENABLE
;
1787 I915_WRITE(reg
, val
);
1788 /* wait for PCH transcoder off, transcoder state */
1789 if (intel_wait_for_register(dev_priv
,
1790 reg
, TRANS_STATE_ENABLE
, 0,
1792 DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe
));
1794 if (HAS_PCH_CPT(dev_priv
)) {
1795 /* Workaround: Clear the timing override chicken bit again. */
1796 reg
= TRANS_CHICKEN2(pipe
);
1797 val
= I915_READ(reg
);
1798 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
1799 I915_WRITE(reg
, val
);
1803 void lpt_disable_pch_transcoder(struct drm_i915_private
*dev_priv
)
1807 val
= I915_READ(LPT_TRANSCONF
);
1808 val
&= ~TRANS_ENABLE
;
1809 I915_WRITE(LPT_TRANSCONF
, val
);
1810 /* wait for PCH transcoder off, transcoder state */
1811 if (intel_wait_for_register(dev_priv
,
1812 LPT_TRANSCONF
, TRANS_STATE_ENABLE
, 0,
1814 DRM_ERROR("Failed to disable PCH transcoder\n");
1816 /* Workaround: clear timing override bit. */
1817 val
= I915_READ(TRANS_CHICKEN2(PIPE_A
));
1818 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
1819 I915_WRITE(TRANS_CHICKEN2(PIPE_A
), val
);
1822 enum pipe
intel_crtc_pch_transcoder(struct intel_crtc
*crtc
)
1824 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1826 WARN_ON(!crtc
->config
->has_pch_encoder
);
1828 if (HAS_PCH_LPT(dev_priv
))
1835 * intel_enable_pipe - enable a pipe, asserting requirements
1836 * @crtc: crtc responsible for the pipe
1838 * Enable @crtc's pipe, making sure that various hardware specific requirements
1839 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
1841 static void intel_enable_pipe(struct intel_crtc
*crtc
)
1843 struct drm_device
*dev
= crtc
->base
.dev
;
1844 struct drm_i915_private
*dev_priv
= to_i915(dev
);
1845 enum pipe pipe
= crtc
->pipe
;
1846 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
1850 DRM_DEBUG_KMS("enabling pipe %c\n", pipe_name(pipe
));
1852 assert_planes_disabled(crtc
);
1855 * A pipe without a PLL won't actually be able to drive bits from
1856 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
1859 if (HAS_GMCH_DISPLAY(dev_priv
)) {
1860 if (intel_crtc_has_type(crtc
->config
, INTEL_OUTPUT_DSI
))
1861 assert_dsi_pll_enabled(dev_priv
);
1863 assert_pll_enabled(dev_priv
, pipe
);
1865 if (crtc
->config
->has_pch_encoder
) {
1866 /* if driving the PCH, we need FDI enabled */
1867 assert_fdi_rx_pll_enabled(dev_priv
,
1868 intel_crtc_pch_transcoder(crtc
));
1869 assert_fdi_tx_pll_enabled(dev_priv
,
1870 (enum pipe
) cpu_transcoder
);
1872 /* FIXME: assert CPU port conditions for SNB+ */
1875 reg
= PIPECONF(cpu_transcoder
);
1876 val
= I915_READ(reg
);
1877 if (val
& PIPECONF_ENABLE
) {
1878 /* we keep both pipes enabled on 830 */
1879 WARN_ON(!IS_I830(dev_priv
));
1883 I915_WRITE(reg
, val
| PIPECONF_ENABLE
);
1887 * Until the pipe starts PIPEDSL reads will return a stale value,
1888 * which causes an apparent vblank timestamp jump when PIPEDSL
1889 * resets to its proper value. That also messes up the frame count
1890 * when it's derived from the timestamps. So let's wait for the
1891 * pipe to start properly before we call drm_crtc_vblank_on()
1893 if (dev
->max_vblank_count
== 0)
1894 intel_wait_for_pipe_scanline_moving(crtc
);
1898 * intel_disable_pipe - disable a pipe, asserting requirements
1899 * @crtc: crtc whose pipes is to be disabled
1901 * Disable the pipe of @crtc, making sure that various hardware
1902 * specific requirements are met, if applicable, e.g. plane
1903 * disabled, panel fitter off, etc.
1905 * Will wait until the pipe has shut down before returning.
1907 static void intel_disable_pipe(struct intel_crtc
*crtc
)
1909 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1910 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
1911 enum pipe pipe
= crtc
->pipe
;
1915 DRM_DEBUG_KMS("disabling pipe %c\n", pipe_name(pipe
));
1918 * Make sure planes won't keep trying to pump pixels to us,
1919 * or we might hang the display.
1921 assert_planes_disabled(crtc
);
1923 reg
= PIPECONF(cpu_transcoder
);
1924 val
= I915_READ(reg
);
1925 if ((val
& PIPECONF_ENABLE
) == 0)
1929 * Double wide has implications for planes
1930 * so best keep it disabled when not needed.
1932 if (crtc
->config
->double_wide
)
1933 val
&= ~PIPECONF_DOUBLE_WIDE
;
1935 /* Don't disable pipe or pipe PLLs if needed */
1936 if (!IS_I830(dev_priv
))
1937 val
&= ~PIPECONF_ENABLE
;
1939 I915_WRITE(reg
, val
);
1940 if ((val
& PIPECONF_ENABLE
) == 0)
1941 intel_wait_for_pipe_off(crtc
);
1944 static unsigned int intel_tile_size(const struct drm_i915_private
*dev_priv
)
1946 return IS_GEN2(dev_priv
) ? 2048 : 4096;
1950 intel_tile_width_bytes(const struct drm_framebuffer
*fb
, int plane
)
1952 struct drm_i915_private
*dev_priv
= to_i915(fb
->dev
);
1953 unsigned int cpp
= fb
->format
->cpp
[plane
];
1955 switch (fb
->modifier
) {
1956 case DRM_FORMAT_MOD_LINEAR
:
1958 case I915_FORMAT_MOD_X_TILED
:
1959 if (IS_GEN2(dev_priv
))
1963 case I915_FORMAT_MOD_Y_TILED_CCS
:
1967 case I915_FORMAT_MOD_Y_TILED
:
1968 if (IS_GEN2(dev_priv
) || HAS_128_BYTE_Y_TILING(dev_priv
))
1972 case I915_FORMAT_MOD_Yf_TILED_CCS
:
1976 case I915_FORMAT_MOD_Yf_TILED
:
1992 MISSING_CASE(fb
->modifier
);
1998 intel_tile_height(const struct drm_framebuffer
*fb
, int plane
)
2000 if (fb
->modifier
== DRM_FORMAT_MOD_LINEAR
)
2003 return intel_tile_size(to_i915(fb
->dev
)) /
2004 intel_tile_width_bytes(fb
, plane
);
2007 /* Return the tile dimensions in pixel units */
2008 static void intel_tile_dims(const struct drm_framebuffer
*fb
, int plane
,
2009 unsigned int *tile_width
,
2010 unsigned int *tile_height
)
2012 unsigned int tile_width_bytes
= intel_tile_width_bytes(fb
, plane
);
2013 unsigned int cpp
= fb
->format
->cpp
[plane
];
2015 *tile_width
= tile_width_bytes
/ cpp
;
2016 *tile_height
= intel_tile_size(to_i915(fb
->dev
)) / tile_width_bytes
;
2020 intel_fb_align_height(const struct drm_framebuffer
*fb
,
2021 int plane
, unsigned int height
)
2023 unsigned int tile_height
= intel_tile_height(fb
, plane
);
2025 return ALIGN(height
, tile_height
);
2028 unsigned int intel_rotation_info_size(const struct intel_rotation_info
*rot_info
)
2030 unsigned int size
= 0;
2033 for (i
= 0 ; i
< ARRAY_SIZE(rot_info
->plane
); i
++)
2034 size
+= rot_info
->plane
[i
].width
* rot_info
->plane
[i
].height
;
2040 intel_fill_fb_ggtt_view(struct i915_ggtt_view
*view
,
2041 const struct drm_framebuffer
*fb
,
2042 unsigned int rotation
)
2044 view
->type
= I915_GGTT_VIEW_NORMAL
;
2045 if (drm_rotation_90_or_270(rotation
)) {
2046 view
->type
= I915_GGTT_VIEW_ROTATED
;
2047 view
->rotated
= to_intel_framebuffer(fb
)->rot_info
;
2051 static unsigned int intel_cursor_alignment(const struct drm_i915_private
*dev_priv
)
2053 if (IS_I830(dev_priv
))
2055 else if (IS_I85X(dev_priv
))
2057 else if (IS_I845G(dev_priv
) || IS_I865G(dev_priv
))
2063 static unsigned int intel_linear_alignment(const struct drm_i915_private
*dev_priv
)
2065 if (INTEL_INFO(dev_priv
)->gen
>= 9)
2067 else if (IS_I965G(dev_priv
) || IS_I965GM(dev_priv
) ||
2068 IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
2070 else if (INTEL_INFO(dev_priv
)->gen
>= 4)
2076 static unsigned int intel_surf_alignment(const struct drm_framebuffer
*fb
,
2079 struct drm_i915_private
*dev_priv
= to_i915(fb
->dev
);
2081 /* AUX_DIST needs only 4K alignment */
2085 switch (fb
->modifier
) {
2086 case DRM_FORMAT_MOD_LINEAR
:
2087 return intel_linear_alignment(dev_priv
);
2088 case I915_FORMAT_MOD_X_TILED
:
2089 if (INTEL_GEN(dev_priv
) >= 9)
2092 case I915_FORMAT_MOD_Y_TILED_CCS
:
2093 case I915_FORMAT_MOD_Yf_TILED_CCS
:
2094 case I915_FORMAT_MOD_Y_TILED
:
2095 case I915_FORMAT_MOD_Yf_TILED
:
2096 return 1 * 1024 * 1024;
2098 MISSING_CASE(fb
->modifier
);
2104 intel_pin_and_fence_fb_obj(struct drm_framebuffer
*fb
, unsigned int rotation
)
2106 struct drm_device
*dev
= fb
->dev
;
2107 struct drm_i915_private
*dev_priv
= to_i915(dev
);
2108 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
2109 struct i915_ggtt_view view
;
2110 struct i915_vma
*vma
;
2113 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
2115 alignment
= intel_surf_alignment(fb
, 0);
2117 intel_fill_fb_ggtt_view(&view
, fb
, rotation
);
2119 /* Note that the w/a also requires 64 PTE of padding following the
2120 * bo. We currently fill all unused PTE with the shadow page and so
2121 * we should always have valid PTE following the scanout preventing
2124 if (intel_scanout_needs_vtd_wa(dev_priv
) && alignment
< 256 * 1024)
2125 alignment
= 256 * 1024;
2128 * Global gtt pte registers are special registers which actually forward
2129 * writes to a chunk of system memory. Which means that there is no risk
2130 * that the register values disappear as soon as we call
2131 * intel_runtime_pm_put(), so it is correct to wrap only the
2132 * pin/unpin/fence and not more.
2134 intel_runtime_pm_get(dev_priv
);
2136 atomic_inc(&dev_priv
->gpu_error
.pending_fb_pin
);
2138 vma
= i915_gem_object_pin_to_display_plane(obj
, alignment
, &view
);
2142 if (i915_vma_is_map_and_fenceable(vma
)) {
2143 /* Install a fence for tiled scan-out. Pre-i965 always needs a
2144 * fence, whereas 965+ only requires a fence if using
2145 * framebuffer compression. For simplicity, we always, when
2146 * possible, install a fence as the cost is not that onerous.
2148 * If we fail to fence the tiled scanout, then either the
2149 * modeset will reject the change (which is highly unlikely as
2150 * the affected systems, all but one, do not have unmappable
2151 * space) or we will not be able to enable full powersaving
2152 * techniques (also likely not to apply due to various limits
2153 * FBC and the like impose on the size of the buffer, which
2154 * presumably we violated anyway with this unmappable buffer).
2155 * Anyway, it is presumably better to stumble onwards with
2156 * something and try to run the system in a "less than optimal"
2157 * mode that matches the user configuration.
2159 i915_vma_pin_fence(vma
);
2164 atomic_dec(&dev_priv
->gpu_error
.pending_fb_pin
);
2166 intel_runtime_pm_put(dev_priv
);
2170 void intel_unpin_fb_vma(struct i915_vma
*vma
)
2172 lockdep_assert_held(&vma
->vm
->i915
->drm
.struct_mutex
);
2174 i915_vma_unpin_fence(vma
);
2175 i915_gem_object_unpin_from_display_plane(vma
);
2179 static int intel_fb_pitch(const struct drm_framebuffer
*fb
, int plane
,
2180 unsigned int rotation
)
2182 if (drm_rotation_90_or_270(rotation
))
2183 return to_intel_framebuffer(fb
)->rotated
[plane
].pitch
;
2185 return fb
->pitches
[plane
];
2189 * Convert the x/y offsets into a linear offset.
2190 * Only valid with 0/180 degree rotation, which is fine since linear
2191 * offset is only used with linear buffers on pre-hsw and tiled buffers
2192 * with gen2/3, and 90/270 degree rotations isn't supported on any of them.
2194 u32
intel_fb_xy_to_linear(int x
, int y
,
2195 const struct intel_plane_state
*state
,
2198 const struct drm_framebuffer
*fb
= state
->base
.fb
;
2199 unsigned int cpp
= fb
->format
->cpp
[plane
];
2200 unsigned int pitch
= fb
->pitches
[plane
];
2202 return y
* pitch
+ x
* cpp
;
2206 * Add the x/y offsets derived from fb->offsets[] to the user
2207 * specified plane src x/y offsets. The resulting x/y offsets
2208 * specify the start of scanout from the beginning of the gtt mapping.
2210 void intel_add_fb_offsets(int *x
, int *y
,
2211 const struct intel_plane_state
*state
,
2215 const struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(state
->base
.fb
);
2216 unsigned int rotation
= state
->base
.rotation
;
2218 if (drm_rotation_90_or_270(rotation
)) {
2219 *x
+= intel_fb
->rotated
[plane
].x
;
2220 *y
+= intel_fb
->rotated
[plane
].y
;
2222 *x
+= intel_fb
->normal
[plane
].x
;
2223 *y
+= intel_fb
->normal
[plane
].y
;
2227 static u32
__intel_adjust_tile_offset(int *x
, int *y
,
2228 unsigned int tile_width
,
2229 unsigned int tile_height
,
2230 unsigned int tile_size
,
2231 unsigned int pitch_tiles
,
2235 unsigned int pitch_pixels
= pitch_tiles
* tile_width
;
2238 WARN_ON(old_offset
& (tile_size
- 1));
2239 WARN_ON(new_offset
& (tile_size
- 1));
2240 WARN_ON(new_offset
> old_offset
);
2242 tiles
= (old_offset
- new_offset
) / tile_size
;
2244 *y
+= tiles
/ pitch_tiles
* tile_height
;
2245 *x
+= tiles
% pitch_tiles
* tile_width
;
2247 /* minimize x in case it got needlessly big */
2248 *y
+= *x
/ pitch_pixels
* tile_height
;
2254 static u32
_intel_adjust_tile_offset(int *x
, int *y
,
2255 const struct drm_framebuffer
*fb
, int plane
,
2256 unsigned int rotation
,
2257 u32 old_offset
, u32 new_offset
)
2259 const struct drm_i915_private
*dev_priv
= to_i915(fb
->dev
);
2260 unsigned int cpp
= fb
->format
->cpp
[plane
];
2261 unsigned int pitch
= intel_fb_pitch(fb
, plane
, rotation
);
2263 WARN_ON(new_offset
> old_offset
);
2265 if (fb
->modifier
!= DRM_FORMAT_MOD_LINEAR
) {
2266 unsigned int tile_size
, tile_width
, tile_height
;
2267 unsigned int pitch_tiles
;
2269 tile_size
= intel_tile_size(dev_priv
);
2270 intel_tile_dims(fb
, plane
, &tile_width
, &tile_height
);
2272 if (drm_rotation_90_or_270(rotation
)) {
2273 pitch_tiles
= pitch
/ tile_height
;
2274 swap(tile_width
, tile_height
);
2276 pitch_tiles
= pitch
/ (tile_width
* cpp
);
2279 __intel_adjust_tile_offset(x
, y
, tile_width
, tile_height
,
2280 tile_size
, pitch_tiles
,
2281 old_offset
, new_offset
);
2283 old_offset
+= *y
* pitch
+ *x
* cpp
;
2285 *y
= (old_offset
- new_offset
) / pitch
;
2286 *x
= ((old_offset
- new_offset
) - *y
* pitch
) / cpp
;
2293 * Adjust the tile offset by moving the difference into
2296 static u32
intel_adjust_tile_offset(int *x
, int *y
,
2297 const struct intel_plane_state
*state
, int plane
,
2298 u32 old_offset
, u32 new_offset
)
2300 return _intel_adjust_tile_offset(x
, y
, state
->base
.fb
, plane
,
2301 state
->base
.rotation
,
2302 old_offset
, new_offset
);
2306 * Computes the linear offset to the base tile and adjusts
2307 * x, y. bytes per pixel is assumed to be a power-of-two.
2309 * In the 90/270 rotated case, x and y are assumed
2310 * to be already rotated to match the rotated GTT view, and
2311 * pitch is the tile_height aligned framebuffer height.
2313 * This function is used when computing the derived information
2314 * under intel_framebuffer, so using any of that information
2315 * here is not allowed. Anything under drm_framebuffer can be
2316 * used. This is why the user has to pass in the pitch since it
2317 * is specified in the rotated orientation.
2319 static u32
_intel_compute_tile_offset(const struct drm_i915_private
*dev_priv
,
2321 const struct drm_framebuffer
*fb
, int plane
,
2323 unsigned int rotation
,
2326 uint64_t fb_modifier
= fb
->modifier
;
2327 unsigned int cpp
= fb
->format
->cpp
[plane
];
2328 u32 offset
, offset_aligned
;
2333 if (fb_modifier
!= DRM_FORMAT_MOD_LINEAR
) {
2334 unsigned int tile_size
, tile_width
, tile_height
;
2335 unsigned int tile_rows
, tiles
, pitch_tiles
;
2337 tile_size
= intel_tile_size(dev_priv
);
2338 intel_tile_dims(fb
, plane
, &tile_width
, &tile_height
);
2340 if (drm_rotation_90_or_270(rotation
)) {
2341 pitch_tiles
= pitch
/ tile_height
;
2342 swap(tile_width
, tile_height
);
2344 pitch_tiles
= pitch
/ (tile_width
* cpp
);
2347 tile_rows
= *y
/ tile_height
;
2350 tiles
= *x
/ tile_width
;
2353 offset
= (tile_rows
* pitch_tiles
+ tiles
) * tile_size
;
2354 offset_aligned
= offset
& ~alignment
;
2356 __intel_adjust_tile_offset(x
, y
, tile_width
, tile_height
,
2357 tile_size
, pitch_tiles
,
2358 offset
, offset_aligned
);
2360 offset
= *y
* pitch
+ *x
* cpp
;
2361 offset_aligned
= offset
& ~alignment
;
2363 *y
= (offset
& alignment
) / pitch
;
2364 *x
= ((offset
& alignment
) - *y
* pitch
) / cpp
;
2367 return offset_aligned
;
2370 u32
intel_compute_tile_offset(int *x
, int *y
,
2371 const struct intel_plane_state
*state
,
2374 struct intel_plane
*intel_plane
= to_intel_plane(state
->base
.plane
);
2375 struct drm_i915_private
*dev_priv
= to_i915(intel_plane
->base
.dev
);
2376 const struct drm_framebuffer
*fb
= state
->base
.fb
;
2377 unsigned int rotation
= state
->base
.rotation
;
2378 int pitch
= intel_fb_pitch(fb
, plane
, rotation
);
2381 if (intel_plane
->id
== PLANE_CURSOR
)
2382 alignment
= intel_cursor_alignment(dev_priv
);
2384 alignment
= intel_surf_alignment(fb
, plane
);
2386 return _intel_compute_tile_offset(dev_priv
, x
, y
, fb
, plane
, pitch
,
2387 rotation
, alignment
);
2390 /* Convert the fb->offset[] into x/y offsets */
2391 static int intel_fb_offset_to_xy(int *x
, int *y
,
2392 const struct drm_framebuffer
*fb
, int plane
)
2394 struct drm_i915_private
*dev_priv
= to_i915(fb
->dev
);
2396 if (fb
->modifier
!= DRM_FORMAT_MOD_LINEAR
&&
2397 fb
->offsets
[plane
] % intel_tile_size(dev_priv
))
2403 _intel_adjust_tile_offset(x
, y
,
2404 fb
, plane
, DRM_MODE_ROTATE_0
,
2405 fb
->offsets
[plane
], 0);
2410 static unsigned int intel_fb_modifier_to_tiling(uint64_t fb_modifier
)
2412 switch (fb_modifier
) {
2413 case I915_FORMAT_MOD_X_TILED
:
2414 return I915_TILING_X
;
2415 case I915_FORMAT_MOD_Y_TILED
:
2416 case I915_FORMAT_MOD_Y_TILED_CCS
:
2417 return I915_TILING_Y
;
2419 return I915_TILING_NONE
;
2423 static const struct drm_format_info ccs_formats
[] = {
2424 { .format
= DRM_FORMAT_XRGB8888
, .depth
= 24, .num_planes
= 2, .cpp
= { 4, 1, }, .hsub
= 8, .vsub
= 16, },
2425 { .format
= DRM_FORMAT_XBGR8888
, .depth
= 24, .num_planes
= 2, .cpp
= { 4, 1, }, .hsub
= 8, .vsub
= 16, },
2426 { .format
= DRM_FORMAT_ARGB8888
, .depth
= 32, .num_planes
= 2, .cpp
= { 4, 1, }, .hsub
= 8, .vsub
= 16, },
2427 { .format
= DRM_FORMAT_ABGR8888
, .depth
= 32, .num_planes
= 2, .cpp
= { 4, 1, }, .hsub
= 8, .vsub
= 16, },
2430 static const struct drm_format_info
*
2431 lookup_format_info(const struct drm_format_info formats
[],
2432 int num_formats
, u32 format
)
2436 for (i
= 0; i
< num_formats
; i
++) {
2437 if (formats
[i
].format
== format
)
2444 static const struct drm_format_info
*
2445 intel_get_format_info(const struct drm_mode_fb_cmd2
*cmd
)
2447 switch (cmd
->modifier
[0]) {
2448 case I915_FORMAT_MOD_Y_TILED_CCS
:
2449 case I915_FORMAT_MOD_Yf_TILED_CCS
:
2450 return lookup_format_info(ccs_formats
,
2451 ARRAY_SIZE(ccs_formats
),
2459 intel_fill_fb_info(struct drm_i915_private
*dev_priv
,
2460 struct drm_framebuffer
*fb
)
2462 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
2463 struct intel_rotation_info
*rot_info
= &intel_fb
->rot_info
;
2464 u32 gtt_offset_rotated
= 0;
2465 unsigned int max_size
= 0;
2466 int i
, num_planes
= fb
->format
->num_planes
;
2467 unsigned int tile_size
= intel_tile_size(dev_priv
);
2469 for (i
= 0; i
< num_planes
; i
++) {
2470 unsigned int width
, height
;
2471 unsigned int cpp
, size
;
2476 cpp
= fb
->format
->cpp
[i
];
2477 width
= drm_framebuffer_plane_width(fb
->width
, fb
, i
);
2478 height
= drm_framebuffer_plane_height(fb
->height
, fb
, i
);
2480 ret
= intel_fb_offset_to_xy(&x
, &y
, fb
, i
);
2482 DRM_DEBUG_KMS("bad fb plane %d offset: 0x%x\n",
2487 if ((fb
->modifier
== I915_FORMAT_MOD_Y_TILED_CCS
||
2488 fb
->modifier
== I915_FORMAT_MOD_Yf_TILED_CCS
) && i
== 1) {
2489 int hsub
= fb
->format
->hsub
;
2490 int vsub
= fb
->format
->vsub
;
2491 int tile_width
, tile_height
;
2495 intel_tile_dims(fb
, i
, &tile_width
, &tile_height
);
2497 tile_height
*= vsub
;
2499 ccs_x
= (x
* hsub
) % tile_width
;
2500 ccs_y
= (y
* vsub
) % tile_height
;
2501 main_x
= intel_fb
->normal
[0].x
% tile_width
;
2502 main_y
= intel_fb
->normal
[0].y
% tile_height
;
2505 * CCS doesn't have its own x/y offset register, so the intra CCS tile
2506 * x/y offsets must match between CCS and the main surface.
2508 if (main_x
!= ccs_x
|| main_y
!= ccs_y
) {
2509 DRM_DEBUG_KMS("Bad CCS x/y (main %d,%d ccs %d,%d) full (main %d,%d ccs %d,%d)\n",
2512 intel_fb
->normal
[0].x
,
2513 intel_fb
->normal
[0].y
,
2520 * The fence (if used) is aligned to the start of the object
2521 * so having the framebuffer wrap around across the edge of the
2522 * fenced region doesn't really work. We have no API to configure
2523 * the fence start offset within the object (nor could we probably
2524 * on gen2/3). So it's just easier if we just require that the
2525 * fb layout agrees with the fence layout. We already check that the
2526 * fb stride matches the fence stride elsewhere.
2528 if (i
== 0 && i915_gem_object_is_tiled(intel_fb
->obj
) &&
2529 (x
+ width
) * cpp
> fb
->pitches
[i
]) {
2530 DRM_DEBUG_KMS("bad fb plane %d offset: 0x%x\n",
2536 * First pixel of the framebuffer from
2537 * the start of the normal gtt mapping.
2539 intel_fb
->normal
[i
].x
= x
;
2540 intel_fb
->normal
[i
].y
= y
;
2542 offset
= _intel_compute_tile_offset(dev_priv
, &x
, &y
,
2543 fb
, i
, fb
->pitches
[i
],
2544 DRM_MODE_ROTATE_0
, tile_size
);
2545 offset
/= tile_size
;
2547 if (fb
->modifier
!= DRM_FORMAT_MOD_LINEAR
) {
2548 unsigned int tile_width
, tile_height
;
2549 unsigned int pitch_tiles
;
2552 intel_tile_dims(fb
, i
, &tile_width
, &tile_height
);
2554 rot_info
->plane
[i
].offset
= offset
;
2555 rot_info
->plane
[i
].stride
= DIV_ROUND_UP(fb
->pitches
[i
], tile_width
* cpp
);
2556 rot_info
->plane
[i
].width
= DIV_ROUND_UP(x
+ width
, tile_width
);
2557 rot_info
->plane
[i
].height
= DIV_ROUND_UP(y
+ height
, tile_height
);
2559 intel_fb
->rotated
[i
].pitch
=
2560 rot_info
->plane
[i
].height
* tile_height
;
2562 /* how many tiles does this plane need */
2563 size
= rot_info
->plane
[i
].stride
* rot_info
->plane
[i
].height
;
2565 * If the plane isn't horizontally tile aligned,
2566 * we need one more tile.
2571 /* rotate the x/y offsets to match the GTT view */
2577 rot_info
->plane
[i
].width
* tile_width
,
2578 rot_info
->plane
[i
].height
* tile_height
,
2579 DRM_MODE_ROTATE_270
);
2583 /* rotate the tile dimensions to match the GTT view */
2584 pitch_tiles
= intel_fb
->rotated
[i
].pitch
/ tile_height
;
2585 swap(tile_width
, tile_height
);
2588 * We only keep the x/y offsets, so push all of the
2589 * gtt offset into the x/y offsets.
2591 __intel_adjust_tile_offset(&x
, &y
,
2592 tile_width
, tile_height
,
2593 tile_size
, pitch_tiles
,
2594 gtt_offset_rotated
* tile_size
, 0);
2596 gtt_offset_rotated
+= rot_info
->plane
[i
].width
* rot_info
->plane
[i
].height
;
2599 * First pixel of the framebuffer from
2600 * the start of the rotated gtt mapping.
2602 intel_fb
->rotated
[i
].x
= x
;
2603 intel_fb
->rotated
[i
].y
= y
;
2605 size
= DIV_ROUND_UP((y
+ height
) * fb
->pitches
[i
] +
2606 x
* cpp
, tile_size
);
2609 /* how many tiles in total needed in the bo */
2610 max_size
= max(max_size
, offset
+ size
);
2613 if (max_size
* tile_size
> intel_fb
->obj
->base
.size
) {
2614 DRM_DEBUG_KMS("fb too big for bo (need %u bytes, have %zu bytes)\n",
2615 max_size
* tile_size
, intel_fb
->obj
->base
.size
);
2622 static int i9xx_format_to_fourcc(int format
)
2625 case DISPPLANE_8BPP
:
2626 return DRM_FORMAT_C8
;
2627 case DISPPLANE_BGRX555
:
2628 return DRM_FORMAT_XRGB1555
;
2629 case DISPPLANE_BGRX565
:
2630 return DRM_FORMAT_RGB565
;
2632 case DISPPLANE_BGRX888
:
2633 return DRM_FORMAT_XRGB8888
;
2634 case DISPPLANE_RGBX888
:
2635 return DRM_FORMAT_XBGR8888
;
2636 case DISPPLANE_BGRX101010
:
2637 return DRM_FORMAT_XRGB2101010
;
2638 case DISPPLANE_RGBX101010
:
2639 return DRM_FORMAT_XBGR2101010
;
2643 static int skl_format_to_fourcc(int format
, bool rgb_order
, bool alpha
)
2646 case PLANE_CTL_FORMAT_RGB_565
:
2647 return DRM_FORMAT_RGB565
;
2649 case PLANE_CTL_FORMAT_XRGB_8888
:
2652 return DRM_FORMAT_ABGR8888
;
2654 return DRM_FORMAT_XBGR8888
;
2657 return DRM_FORMAT_ARGB8888
;
2659 return DRM_FORMAT_XRGB8888
;
2661 case PLANE_CTL_FORMAT_XRGB_2101010
:
2663 return DRM_FORMAT_XBGR2101010
;
2665 return DRM_FORMAT_XRGB2101010
;
2670 intel_alloc_initial_plane_obj(struct intel_crtc
*crtc
,
2671 struct intel_initial_plane_config
*plane_config
)
2673 struct drm_device
*dev
= crtc
->base
.dev
;
2674 struct drm_i915_private
*dev_priv
= to_i915(dev
);
2675 struct i915_ggtt
*ggtt
= &dev_priv
->ggtt
;
2676 struct drm_i915_gem_object
*obj
= NULL
;
2677 struct drm_mode_fb_cmd2 mode_cmd
= { 0 };
2678 struct drm_framebuffer
*fb
= &plane_config
->fb
->base
;
2679 u32 base_aligned
= round_down(plane_config
->base
, PAGE_SIZE
);
2680 u32 size_aligned
= round_up(plane_config
->base
+ plane_config
->size
,
2683 size_aligned
-= base_aligned
;
2685 if (plane_config
->size
== 0)
2688 /* If the FB is too big, just don't use it since fbdev is not very
2689 * important and we should probably use that space with FBC or other
2691 if (size_aligned
* 2 > ggtt
->stolen_usable_size
)
2694 mutex_lock(&dev
->struct_mutex
);
2695 obj
= i915_gem_object_create_stolen_for_preallocated(dev_priv
,
2699 mutex_unlock(&dev
->struct_mutex
);
2703 if (plane_config
->tiling
== I915_TILING_X
)
2704 obj
->tiling_and_stride
= fb
->pitches
[0] | I915_TILING_X
;
2706 mode_cmd
.pixel_format
= fb
->format
->format
;
2707 mode_cmd
.width
= fb
->width
;
2708 mode_cmd
.height
= fb
->height
;
2709 mode_cmd
.pitches
[0] = fb
->pitches
[0];
2710 mode_cmd
.modifier
[0] = fb
->modifier
;
2711 mode_cmd
.flags
= DRM_MODE_FB_MODIFIERS
;
2713 if (intel_framebuffer_init(to_intel_framebuffer(fb
), obj
, &mode_cmd
)) {
2714 DRM_DEBUG_KMS("intel fb init failed\n");
2719 DRM_DEBUG_KMS("initial plane fb obj %p\n", obj
);
2723 i915_gem_object_put(obj
);
2728 intel_set_plane_visible(struct intel_crtc_state
*crtc_state
,
2729 struct intel_plane_state
*plane_state
,
2732 struct intel_plane
*plane
= to_intel_plane(plane_state
->base
.plane
);
2734 plane_state
->base
.visible
= visible
;
2736 /* FIXME pre-g4x don't work like this */
2738 crtc_state
->base
.plane_mask
|= BIT(drm_plane_index(&plane
->base
));
2739 crtc_state
->active_planes
|= BIT(plane
->id
);
2741 crtc_state
->base
.plane_mask
&= ~BIT(drm_plane_index(&plane
->base
));
2742 crtc_state
->active_planes
&= ~BIT(plane
->id
);
2745 DRM_DEBUG_KMS("%s active planes 0x%x\n",
2746 crtc_state
->base
.crtc
->name
,
2747 crtc_state
->active_planes
);
2750 static void intel_plane_disable_noatomic(struct intel_crtc
*crtc
,
2751 struct intel_plane
*plane
)
2753 struct intel_crtc_state
*crtc_state
=
2754 to_intel_crtc_state(crtc
->base
.state
);
2755 struct intel_plane_state
*plane_state
=
2756 to_intel_plane_state(plane
->base
.state
);
2758 intel_set_plane_visible(crtc_state
, plane_state
, false);
2760 if (plane
->id
== PLANE_PRIMARY
)
2761 intel_pre_disable_primary_noatomic(&crtc
->base
);
2763 trace_intel_disable_plane(&plane
->base
, crtc
);
2764 plane
->disable_plane(plane
, crtc
);
2768 intel_find_initial_plane_obj(struct intel_crtc
*intel_crtc
,
2769 struct intel_initial_plane_config
*plane_config
)
2771 struct drm_device
*dev
= intel_crtc
->base
.dev
;
2772 struct drm_i915_private
*dev_priv
= to_i915(dev
);
2774 struct drm_i915_gem_object
*obj
;
2775 struct drm_plane
*primary
= intel_crtc
->base
.primary
;
2776 struct drm_plane_state
*plane_state
= primary
->state
;
2777 struct drm_crtc_state
*crtc_state
= intel_crtc
->base
.state
;
2778 struct intel_plane
*intel_plane
= to_intel_plane(primary
);
2779 struct intel_plane_state
*intel_state
=
2780 to_intel_plane_state(plane_state
);
2781 struct drm_framebuffer
*fb
;
2783 if (!plane_config
->fb
)
2786 if (intel_alloc_initial_plane_obj(intel_crtc
, plane_config
)) {
2787 fb
= &plane_config
->fb
->base
;
2791 kfree(plane_config
->fb
);
2794 * Failed to alloc the obj, check to see if we should share
2795 * an fb with another CRTC instead
2797 for_each_crtc(dev
, c
) {
2798 struct intel_plane_state
*state
;
2800 if (c
== &intel_crtc
->base
)
2803 if (!to_intel_crtc(c
)->active
)
2806 state
= to_intel_plane_state(c
->primary
->state
);
2810 if (intel_plane_ggtt_offset(state
) == plane_config
->base
) {
2811 fb
= c
->primary
->fb
;
2812 drm_framebuffer_get(fb
);
2818 * We've failed to reconstruct the BIOS FB. Current display state
2819 * indicates that the primary plane is visible, but has a NULL FB,
2820 * which will lead to problems later if we don't fix it up. The
2821 * simplest solution is to just disable the primary plane now and
2822 * pretend the BIOS never had it enabled.
2824 intel_plane_disable_noatomic(intel_crtc
, intel_plane
);
2829 mutex_lock(&dev
->struct_mutex
);
2831 intel_pin_and_fence_fb_obj(fb
, primary
->state
->rotation
);
2832 mutex_unlock(&dev
->struct_mutex
);
2833 if (IS_ERR(intel_state
->vma
)) {
2834 DRM_ERROR("failed to pin boot fb on pipe %d: %li\n",
2835 intel_crtc
->pipe
, PTR_ERR(intel_state
->vma
));
2837 intel_state
->vma
= NULL
;
2838 drm_framebuffer_put(fb
);
2842 plane_state
->src_x
= 0;
2843 plane_state
->src_y
= 0;
2844 plane_state
->src_w
= fb
->width
<< 16;
2845 plane_state
->src_h
= fb
->height
<< 16;
2847 plane_state
->crtc_x
= 0;
2848 plane_state
->crtc_y
= 0;
2849 plane_state
->crtc_w
= fb
->width
;
2850 plane_state
->crtc_h
= fb
->height
;
2852 intel_state
->base
.src
= drm_plane_state_src(plane_state
);
2853 intel_state
->base
.dst
= drm_plane_state_dest(plane_state
);
2855 obj
= intel_fb_obj(fb
);
2856 if (i915_gem_object_is_tiled(obj
))
2857 dev_priv
->preserve_bios_swizzle
= true;
2859 drm_framebuffer_get(fb
);
2860 primary
->fb
= primary
->state
->fb
= fb
;
2861 primary
->crtc
= primary
->state
->crtc
= &intel_crtc
->base
;
2863 intel_set_plane_visible(to_intel_crtc_state(crtc_state
),
2864 to_intel_plane_state(plane_state
),
2867 atomic_or(to_intel_plane(primary
)->frontbuffer_bit
,
2868 &obj
->frontbuffer_bits
);
2871 static int skl_max_plane_width(const struct drm_framebuffer
*fb
, int plane
,
2872 unsigned int rotation
)
2874 int cpp
= fb
->format
->cpp
[plane
];
2876 switch (fb
->modifier
) {
2877 case DRM_FORMAT_MOD_LINEAR
:
2878 case I915_FORMAT_MOD_X_TILED
:
2891 case I915_FORMAT_MOD_Y_TILED_CCS
:
2892 case I915_FORMAT_MOD_Yf_TILED_CCS
:
2893 /* FIXME AUX plane? */
2894 case I915_FORMAT_MOD_Y_TILED
:
2895 case I915_FORMAT_MOD_Yf_TILED
:
2910 MISSING_CASE(fb
->modifier
);
2916 static bool skl_check_main_ccs_coordinates(struct intel_plane_state
*plane_state
,
2917 int main_x
, int main_y
, u32 main_offset
)
2919 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
2920 int hsub
= fb
->format
->hsub
;
2921 int vsub
= fb
->format
->vsub
;
2922 int aux_x
= plane_state
->aux
.x
;
2923 int aux_y
= plane_state
->aux
.y
;
2924 u32 aux_offset
= plane_state
->aux
.offset
;
2925 u32 alignment
= intel_surf_alignment(fb
, 1);
2927 while (aux_offset
>= main_offset
&& aux_y
<= main_y
) {
2930 if (aux_x
== main_x
&& aux_y
== main_y
)
2933 if (aux_offset
== 0)
2938 aux_offset
= intel_adjust_tile_offset(&x
, &y
, plane_state
, 1,
2939 aux_offset
, aux_offset
- alignment
);
2940 aux_x
= x
* hsub
+ aux_x
% hsub
;
2941 aux_y
= y
* vsub
+ aux_y
% vsub
;
2944 if (aux_x
!= main_x
|| aux_y
!= main_y
)
2947 plane_state
->aux
.offset
= aux_offset
;
2948 plane_state
->aux
.x
= aux_x
;
2949 plane_state
->aux
.y
= aux_y
;
2954 static int skl_check_main_surface(struct intel_plane_state
*plane_state
)
2956 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
2957 unsigned int rotation
= plane_state
->base
.rotation
;
2958 int x
= plane_state
->base
.src
.x1
>> 16;
2959 int y
= plane_state
->base
.src
.y1
>> 16;
2960 int w
= drm_rect_width(&plane_state
->base
.src
) >> 16;
2961 int h
= drm_rect_height(&plane_state
->base
.src
) >> 16;
2962 int max_width
= skl_max_plane_width(fb
, 0, rotation
);
2963 int max_height
= 4096;
2964 u32 alignment
, offset
, aux_offset
= plane_state
->aux
.offset
;
2966 if (w
> max_width
|| h
> max_height
) {
2967 DRM_DEBUG_KMS("requested Y/RGB source size %dx%d too big (limit %dx%d)\n",
2968 w
, h
, max_width
, max_height
);
2972 intel_add_fb_offsets(&x
, &y
, plane_state
, 0);
2973 offset
= intel_compute_tile_offset(&x
, &y
, plane_state
, 0);
2974 alignment
= intel_surf_alignment(fb
, 0);
2977 * AUX surface offset is specified as the distance from the
2978 * main surface offset, and it must be non-negative. Make
2979 * sure that is what we will get.
2981 if (offset
> aux_offset
)
2982 offset
= intel_adjust_tile_offset(&x
, &y
, plane_state
, 0,
2983 offset
, aux_offset
& ~(alignment
- 1));
2986 * When using an X-tiled surface, the plane blows up
2987 * if the x offset + width exceed the stride.
2989 * TODO: linear and Y-tiled seem fine, Yf untested,
2991 if (fb
->modifier
== I915_FORMAT_MOD_X_TILED
) {
2992 int cpp
= fb
->format
->cpp
[0];
2994 while ((x
+ w
) * cpp
> fb
->pitches
[0]) {
2996 DRM_DEBUG_KMS("Unable to find suitable display surface offset due to X-tiling\n");
3000 offset
= intel_adjust_tile_offset(&x
, &y
, plane_state
, 0,
3001 offset
, offset
- alignment
);
3006 * CCS AUX surface doesn't have its own x/y offsets, we must make sure
3007 * they match with the main surface x/y offsets.
3009 if (fb
->modifier
== I915_FORMAT_MOD_Y_TILED_CCS
||
3010 fb
->modifier
== I915_FORMAT_MOD_Yf_TILED_CCS
) {
3011 while (!skl_check_main_ccs_coordinates(plane_state
, x
, y
, offset
)) {
3015 offset
= intel_adjust_tile_offset(&x
, &y
, plane_state
, 0,
3016 offset
, offset
- alignment
);
3019 if (x
!= plane_state
->aux
.x
|| y
!= plane_state
->aux
.y
) {
3020 DRM_DEBUG_KMS("Unable to find suitable display surface offset due to CCS\n");
3025 plane_state
->main
.offset
= offset
;
3026 plane_state
->main
.x
= x
;
3027 plane_state
->main
.y
= y
;
3032 static int skl_check_nv12_aux_surface(struct intel_plane_state
*plane_state
)
3034 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
3035 unsigned int rotation
= plane_state
->base
.rotation
;
3036 int max_width
= skl_max_plane_width(fb
, 1, rotation
);
3037 int max_height
= 4096;
3038 int x
= plane_state
->base
.src
.x1
>> 17;
3039 int y
= plane_state
->base
.src
.y1
>> 17;
3040 int w
= drm_rect_width(&plane_state
->base
.src
) >> 17;
3041 int h
= drm_rect_height(&plane_state
->base
.src
) >> 17;
3044 intel_add_fb_offsets(&x
, &y
, plane_state
, 1);
3045 offset
= intel_compute_tile_offset(&x
, &y
, plane_state
, 1);
3047 /* FIXME not quite sure how/if these apply to the chroma plane */
3048 if (w
> max_width
|| h
> max_height
) {
3049 DRM_DEBUG_KMS("CbCr source size %dx%d too big (limit %dx%d)\n",
3050 w
, h
, max_width
, max_height
);
3054 plane_state
->aux
.offset
= offset
;
3055 plane_state
->aux
.x
= x
;
3056 plane_state
->aux
.y
= y
;
3061 static int skl_check_ccs_aux_surface(struct intel_plane_state
*plane_state
)
3063 struct intel_plane
*plane
= to_intel_plane(plane_state
->base
.plane
);
3064 struct intel_crtc
*crtc
= to_intel_crtc(plane_state
->base
.crtc
);
3065 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
3066 int src_x
= plane_state
->base
.src
.x1
>> 16;
3067 int src_y
= plane_state
->base
.src
.y1
>> 16;
3068 int hsub
= fb
->format
->hsub
;
3069 int vsub
= fb
->format
->vsub
;
3070 int x
= src_x
/ hsub
;
3071 int y
= src_y
/ vsub
;
3074 switch (plane
->id
) {
3079 DRM_DEBUG_KMS("RC support only on plane 1 and 2\n");
3083 if (crtc
->pipe
== PIPE_C
) {
3084 DRM_DEBUG_KMS("No RC support on pipe C\n");
3088 if (plane_state
->base
.rotation
& ~(DRM_MODE_ROTATE_0
| DRM_MODE_ROTATE_180
)) {
3089 DRM_DEBUG_KMS("RC support only with 0/180 degree rotation %x\n",
3090 plane_state
->base
.rotation
);
3094 intel_add_fb_offsets(&x
, &y
, plane_state
, 1);
3095 offset
= intel_compute_tile_offset(&x
, &y
, plane_state
, 1);
3097 plane_state
->aux
.offset
= offset
;
3098 plane_state
->aux
.x
= x
* hsub
+ src_x
% hsub
;
3099 plane_state
->aux
.y
= y
* vsub
+ src_y
% vsub
;
3104 int skl_check_plane_surface(struct intel_plane_state
*plane_state
)
3106 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
3107 unsigned int rotation
= plane_state
->base
.rotation
;
3110 if (!plane_state
->base
.visible
)
3113 /* Rotate src coordinates to match rotated GTT view */
3114 if (drm_rotation_90_or_270(rotation
))
3115 drm_rect_rotate(&plane_state
->base
.src
,
3116 fb
->width
<< 16, fb
->height
<< 16,
3117 DRM_MODE_ROTATE_270
);
3120 * Handle the AUX surface first since
3121 * the main surface setup depends on it.
3123 if (fb
->format
->format
== DRM_FORMAT_NV12
) {
3124 ret
= skl_check_nv12_aux_surface(plane_state
);
3127 } else if (fb
->modifier
== I915_FORMAT_MOD_Y_TILED_CCS
||
3128 fb
->modifier
== I915_FORMAT_MOD_Yf_TILED_CCS
) {
3129 ret
= skl_check_ccs_aux_surface(plane_state
);
3133 plane_state
->aux
.offset
= ~0xfff;
3134 plane_state
->aux
.x
= 0;
3135 plane_state
->aux
.y
= 0;
3138 ret
= skl_check_main_surface(plane_state
);
3145 static u32
i9xx_plane_ctl(const struct intel_crtc_state
*crtc_state
,
3146 const struct intel_plane_state
*plane_state
)
3148 struct drm_i915_private
*dev_priv
=
3149 to_i915(plane_state
->base
.plane
->dev
);
3150 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
3151 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
3152 unsigned int rotation
= plane_state
->base
.rotation
;
3155 dspcntr
= DISPLAY_PLANE_ENABLE
| DISPPLANE_GAMMA_ENABLE
;
3157 if (IS_G4X(dev_priv
) || IS_GEN5(dev_priv
) ||
3158 IS_GEN6(dev_priv
) || IS_IVYBRIDGE(dev_priv
))
3159 dspcntr
|= DISPPLANE_TRICKLE_FEED_DISABLE
;
3161 if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
))
3162 dspcntr
|= DISPPLANE_PIPE_CSC_ENABLE
;
3164 if (INTEL_GEN(dev_priv
) < 4)
3165 dspcntr
|= DISPPLANE_SEL_PIPE(crtc
->pipe
);
3167 switch (fb
->format
->format
) {
3169 dspcntr
|= DISPPLANE_8BPP
;
3171 case DRM_FORMAT_XRGB1555
:
3172 dspcntr
|= DISPPLANE_BGRX555
;
3174 case DRM_FORMAT_RGB565
:
3175 dspcntr
|= DISPPLANE_BGRX565
;
3177 case DRM_FORMAT_XRGB8888
:
3178 dspcntr
|= DISPPLANE_BGRX888
;
3180 case DRM_FORMAT_XBGR8888
:
3181 dspcntr
|= DISPPLANE_RGBX888
;
3183 case DRM_FORMAT_XRGB2101010
:
3184 dspcntr
|= DISPPLANE_BGRX101010
;
3186 case DRM_FORMAT_XBGR2101010
:
3187 dspcntr
|= DISPPLANE_RGBX101010
;
3190 MISSING_CASE(fb
->format
->format
);
3194 if (INTEL_GEN(dev_priv
) >= 4 &&
3195 fb
->modifier
== I915_FORMAT_MOD_X_TILED
)
3196 dspcntr
|= DISPPLANE_TILED
;
3198 if (rotation
& DRM_MODE_ROTATE_180
)
3199 dspcntr
|= DISPPLANE_ROTATE_180
;
3201 if (rotation
& DRM_MODE_REFLECT_X
)
3202 dspcntr
|= DISPPLANE_MIRROR
;
3207 int i9xx_check_plane_surface(struct intel_plane_state
*plane_state
)
3209 struct drm_i915_private
*dev_priv
=
3210 to_i915(plane_state
->base
.plane
->dev
);
3211 int src_x
= plane_state
->base
.src
.x1
>> 16;
3212 int src_y
= plane_state
->base
.src
.y1
>> 16;
3215 intel_add_fb_offsets(&src_x
, &src_y
, plane_state
, 0);
3217 if (INTEL_GEN(dev_priv
) >= 4)
3218 offset
= intel_compute_tile_offset(&src_x
, &src_y
,
3223 /* HSW/BDW do this automagically in hardware */
3224 if (!IS_HASWELL(dev_priv
) && !IS_BROADWELL(dev_priv
)) {
3225 unsigned int rotation
= plane_state
->base
.rotation
;
3226 int src_w
= drm_rect_width(&plane_state
->base
.src
) >> 16;
3227 int src_h
= drm_rect_height(&plane_state
->base
.src
) >> 16;
3229 if (rotation
& DRM_MODE_ROTATE_180
) {
3232 } else if (rotation
& DRM_MODE_REFLECT_X
) {
3237 plane_state
->main
.offset
= offset
;
3238 plane_state
->main
.x
= src_x
;
3239 plane_state
->main
.y
= src_y
;
3244 static void i9xx_update_primary_plane(struct intel_plane
*primary
,
3245 const struct intel_crtc_state
*crtc_state
,
3246 const struct intel_plane_state
*plane_state
)
3248 struct drm_i915_private
*dev_priv
= to_i915(primary
->base
.dev
);
3249 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
3250 enum plane plane
= primary
->plane
;
3252 u32 dspcntr
= plane_state
->ctl
;
3253 i915_reg_t reg
= DSPCNTR(plane
);
3254 int x
= plane_state
->main
.x
;
3255 int y
= plane_state
->main
.y
;
3256 unsigned long irqflags
;
3259 linear_offset
= intel_fb_xy_to_linear(x
, y
, plane_state
, 0);
3261 if (INTEL_GEN(dev_priv
) >= 4)
3262 dspaddr_offset
= plane_state
->main
.offset
;
3264 dspaddr_offset
= linear_offset
;
3266 spin_lock_irqsave(&dev_priv
->uncore
.lock
, irqflags
);
3268 if (INTEL_GEN(dev_priv
) < 4) {
3269 /* pipesrc and dspsize control the size that is scaled from,
3270 * which should always be the user's requested size.
3272 I915_WRITE_FW(DSPSIZE(plane
),
3273 ((crtc_state
->pipe_src_h
- 1) << 16) |
3274 (crtc_state
->pipe_src_w
- 1));
3275 I915_WRITE_FW(DSPPOS(plane
), 0);
3276 } else if (IS_CHERRYVIEW(dev_priv
) && plane
== PLANE_B
) {
3277 I915_WRITE_FW(PRIMSIZE(plane
),
3278 ((crtc_state
->pipe_src_h
- 1) << 16) |
3279 (crtc_state
->pipe_src_w
- 1));
3280 I915_WRITE_FW(PRIMPOS(plane
), 0);
3281 I915_WRITE_FW(PRIMCNSTALPHA(plane
), 0);
3284 I915_WRITE_FW(reg
, dspcntr
);
3286 I915_WRITE_FW(DSPSTRIDE(plane
), fb
->pitches
[0]);
3287 if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
)) {
3288 I915_WRITE_FW(DSPSURF(plane
),
3289 intel_plane_ggtt_offset(plane_state
) +
3291 I915_WRITE_FW(DSPOFFSET(plane
), (y
<< 16) | x
);
3292 } else if (INTEL_GEN(dev_priv
) >= 4) {
3293 I915_WRITE_FW(DSPSURF(plane
),
3294 intel_plane_ggtt_offset(plane_state
) +
3296 I915_WRITE_FW(DSPTILEOFF(plane
), (y
<< 16) | x
);
3297 I915_WRITE_FW(DSPLINOFF(plane
), linear_offset
);
3299 I915_WRITE_FW(DSPADDR(plane
),
3300 intel_plane_ggtt_offset(plane_state
) +
3303 POSTING_READ_FW(reg
);
3305 spin_unlock_irqrestore(&dev_priv
->uncore
.lock
, irqflags
);
3308 static void i9xx_disable_primary_plane(struct intel_plane
*primary
,
3309 struct intel_crtc
*crtc
)
3311 struct drm_i915_private
*dev_priv
= to_i915(primary
->base
.dev
);
3312 enum plane plane
= primary
->plane
;
3313 unsigned long irqflags
;
3315 spin_lock_irqsave(&dev_priv
->uncore
.lock
, irqflags
);
3317 I915_WRITE_FW(DSPCNTR(plane
), 0);
3318 if (INTEL_INFO(dev_priv
)->gen
>= 4)
3319 I915_WRITE_FW(DSPSURF(plane
), 0);
3321 I915_WRITE_FW(DSPADDR(plane
), 0);
3322 POSTING_READ_FW(DSPCNTR(plane
));
3324 spin_unlock_irqrestore(&dev_priv
->uncore
.lock
, irqflags
);
3327 static bool i9xx_plane_get_hw_state(struct intel_plane
*primary
)
3330 struct drm_i915_private
*dev_priv
= to_i915(primary
->base
.dev
);
3331 enum intel_display_power_domain power_domain
;
3332 enum plane plane
= primary
->plane
;
3333 enum pipe pipe
= primary
->pipe
;
3337 * Not 100% correct for planes that can move between pipes,
3338 * but that's only the case for gen2-4 which don't have any
3339 * display power wells.
3341 power_domain
= POWER_DOMAIN_PIPE(pipe
);
3342 if (!intel_display_power_get_if_enabled(dev_priv
, power_domain
))
3345 ret
= I915_READ(DSPCNTR(plane
)) & DISPLAY_PLANE_ENABLE
;
3347 intel_display_power_put(dev_priv
, power_domain
);
3353 intel_fb_stride_alignment(const struct drm_framebuffer
*fb
, int plane
)
3355 if (fb
->modifier
== DRM_FORMAT_MOD_LINEAR
)
3358 return intel_tile_width_bytes(fb
, plane
);
3361 static void skl_detach_scaler(struct intel_crtc
*intel_crtc
, int id
)
3363 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3364 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3366 I915_WRITE(SKL_PS_CTRL(intel_crtc
->pipe
, id
), 0);
3367 I915_WRITE(SKL_PS_WIN_POS(intel_crtc
->pipe
, id
), 0);
3368 I915_WRITE(SKL_PS_WIN_SZ(intel_crtc
->pipe
, id
), 0);
3372 * This function detaches (aka. unbinds) unused scalers in hardware
3374 static void skl_detach_scalers(struct intel_crtc
*intel_crtc
)
3376 struct intel_crtc_scaler_state
*scaler_state
;
3379 scaler_state
= &intel_crtc
->config
->scaler_state
;
3381 /* loop through and disable scalers that aren't in use */
3382 for (i
= 0; i
< intel_crtc
->num_scalers
; i
++) {
3383 if (!scaler_state
->scalers
[i
].in_use
)
3384 skl_detach_scaler(intel_crtc
, i
);
3388 u32
skl_plane_stride(const struct drm_framebuffer
*fb
, int plane
,
3389 unsigned int rotation
)
3393 if (plane
>= fb
->format
->num_planes
)
3396 stride
= intel_fb_pitch(fb
, plane
, rotation
);
3399 * The stride is either expressed as a multiple of 64 bytes chunks for
3400 * linear buffers or in number of tiles for tiled buffers.
3402 if (drm_rotation_90_or_270(rotation
))
3403 stride
/= intel_tile_height(fb
, plane
);
3405 stride
/= intel_fb_stride_alignment(fb
, plane
);
3410 static u32
skl_plane_ctl_format(uint32_t pixel_format
)
3412 switch (pixel_format
) {
3414 return PLANE_CTL_FORMAT_INDEXED
;
3415 case DRM_FORMAT_RGB565
:
3416 return PLANE_CTL_FORMAT_RGB_565
;
3417 case DRM_FORMAT_XBGR8888
:
3418 return PLANE_CTL_FORMAT_XRGB_8888
| PLANE_CTL_ORDER_RGBX
;
3419 case DRM_FORMAT_XRGB8888
:
3420 return PLANE_CTL_FORMAT_XRGB_8888
;
3422 * XXX: For ARBG/ABGR formats we default to expecting scanout buffers
3423 * to be already pre-multiplied. We need to add a knob (or a different
3424 * DRM_FORMAT) for user-space to configure that.
3426 case DRM_FORMAT_ABGR8888
:
3427 return PLANE_CTL_FORMAT_XRGB_8888
| PLANE_CTL_ORDER_RGBX
|
3428 PLANE_CTL_ALPHA_SW_PREMULTIPLY
;
3429 case DRM_FORMAT_ARGB8888
:
3430 return PLANE_CTL_FORMAT_XRGB_8888
|
3431 PLANE_CTL_ALPHA_SW_PREMULTIPLY
;
3432 case DRM_FORMAT_XRGB2101010
:
3433 return PLANE_CTL_FORMAT_XRGB_2101010
;
3434 case DRM_FORMAT_XBGR2101010
:
3435 return PLANE_CTL_ORDER_RGBX
| PLANE_CTL_FORMAT_XRGB_2101010
;
3436 case DRM_FORMAT_YUYV
:
3437 return PLANE_CTL_FORMAT_YUV422
| PLANE_CTL_YUV422_YUYV
;
3438 case DRM_FORMAT_YVYU
:
3439 return PLANE_CTL_FORMAT_YUV422
| PLANE_CTL_YUV422_YVYU
;
3440 case DRM_FORMAT_UYVY
:
3441 return PLANE_CTL_FORMAT_YUV422
| PLANE_CTL_YUV422_UYVY
;
3442 case DRM_FORMAT_VYUY
:
3443 return PLANE_CTL_FORMAT_YUV422
| PLANE_CTL_YUV422_VYUY
;
3445 MISSING_CASE(pixel_format
);
3451 static u32
skl_plane_ctl_tiling(uint64_t fb_modifier
)
3453 switch (fb_modifier
) {
3454 case DRM_FORMAT_MOD_LINEAR
:
3456 case I915_FORMAT_MOD_X_TILED
:
3457 return PLANE_CTL_TILED_X
;
3458 case I915_FORMAT_MOD_Y_TILED
:
3459 return PLANE_CTL_TILED_Y
;
3460 case I915_FORMAT_MOD_Y_TILED_CCS
:
3461 return PLANE_CTL_TILED_Y
| PLANE_CTL_DECOMPRESSION_ENABLE
;
3462 case I915_FORMAT_MOD_Yf_TILED
:
3463 return PLANE_CTL_TILED_YF
;
3464 case I915_FORMAT_MOD_Yf_TILED_CCS
:
3465 return PLANE_CTL_TILED_YF
| PLANE_CTL_DECOMPRESSION_ENABLE
;
3467 MISSING_CASE(fb_modifier
);
3473 static u32
skl_plane_ctl_rotation(unsigned int rotation
)
3476 case DRM_MODE_ROTATE_0
:
3479 * DRM_MODE_ROTATE_ is counter clockwise to stay compatible with Xrandr
3480 * while i915 HW rotation is clockwise, thats why this swapping.
3482 case DRM_MODE_ROTATE_90
:
3483 return PLANE_CTL_ROTATE_270
;
3484 case DRM_MODE_ROTATE_180
:
3485 return PLANE_CTL_ROTATE_180
;
3486 case DRM_MODE_ROTATE_270
:
3487 return PLANE_CTL_ROTATE_90
;
3489 MISSING_CASE(rotation
);
3495 u32
skl_plane_ctl(const struct intel_crtc_state
*crtc_state
,
3496 const struct intel_plane_state
*plane_state
)
3498 struct drm_i915_private
*dev_priv
=
3499 to_i915(plane_state
->base
.plane
->dev
);
3500 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
3501 unsigned int rotation
= plane_state
->base
.rotation
;
3502 const struct drm_intel_sprite_colorkey
*key
= &plane_state
->ckey
;
3505 plane_ctl
= PLANE_CTL_ENABLE
;
3507 if (!IS_GEMINILAKE(dev_priv
) && !IS_CANNONLAKE(dev_priv
)) {
3509 PLANE_CTL_PIPE_GAMMA_ENABLE
|
3510 PLANE_CTL_PIPE_CSC_ENABLE
|
3511 PLANE_CTL_PLANE_GAMMA_DISABLE
;
3514 plane_ctl
|= skl_plane_ctl_format(fb
->format
->format
);
3515 plane_ctl
|= skl_plane_ctl_tiling(fb
->modifier
);
3516 plane_ctl
|= skl_plane_ctl_rotation(rotation
);
3518 if (key
->flags
& I915_SET_COLORKEY_DESTINATION
)
3519 plane_ctl
|= PLANE_CTL_KEY_ENABLE_DESTINATION
;
3520 else if (key
->flags
& I915_SET_COLORKEY_SOURCE
)
3521 plane_ctl
|= PLANE_CTL_KEY_ENABLE_SOURCE
;
3527 __intel_display_resume(struct drm_device
*dev
,
3528 struct drm_atomic_state
*state
,
3529 struct drm_modeset_acquire_ctx
*ctx
)
3531 struct drm_crtc_state
*crtc_state
;
3532 struct drm_crtc
*crtc
;
3535 intel_modeset_setup_hw_state(dev
, ctx
);
3536 i915_redisable_vga(to_i915(dev
));
3542 * We've duplicated the state, pointers to the old state are invalid.
3544 * Don't attempt to use the old state until we commit the duplicated state.
3546 for_each_new_crtc_in_state(state
, crtc
, crtc_state
, i
) {
3548 * Force recalculation even if we restore
3549 * current state. With fast modeset this may not result
3550 * in a modeset when the state is compatible.
3552 crtc_state
->mode_changed
= true;
3555 /* ignore any reset values/BIOS leftovers in the WM registers */
3556 if (!HAS_GMCH_DISPLAY(to_i915(dev
)))
3557 to_intel_atomic_state(state
)->skip_intermediate_wm
= true;
3559 ret
= drm_atomic_helper_commit_duplicated_state(state
, ctx
);
3561 WARN_ON(ret
== -EDEADLK
);
3565 static bool gpu_reset_clobbers_display(struct drm_i915_private
*dev_priv
)
3567 return intel_has_gpu_reset(dev_priv
) &&
3568 INTEL_GEN(dev_priv
) < 5 && !IS_G4X(dev_priv
);
3571 void intel_prepare_reset(struct drm_i915_private
*dev_priv
)
3573 struct drm_device
*dev
= &dev_priv
->drm
;
3574 struct drm_modeset_acquire_ctx
*ctx
= &dev_priv
->reset_ctx
;
3575 struct drm_atomic_state
*state
;
3579 /* reset doesn't touch the display */
3580 if (!i915_modparams
.force_reset_modeset_test
&&
3581 !gpu_reset_clobbers_display(dev_priv
))
3584 /* We have a modeset vs reset deadlock, defensively unbreak it. */
3585 set_bit(I915_RESET_MODESET
, &dev_priv
->gpu_error
.flags
);
3586 wake_up_all(&dev_priv
->gpu_error
.wait_queue
);
3588 if (atomic_read(&dev_priv
->gpu_error
.pending_fb_pin
)) {
3589 DRM_DEBUG_KMS("Modeset potentially stuck, unbreaking through wedging\n");
3590 i915_gem_set_wedged(dev_priv
);
3594 * Need mode_config.mutex so that we don't
3595 * trample ongoing ->detect() and whatnot.
3597 mutex_lock(&dev
->mode_config
.mutex
);
3598 drm_modeset_acquire_init(ctx
, 0);
3600 ret
= drm_modeset_lock_all_ctx(dev
, ctx
);
3601 if (ret
!= -EDEADLK
)
3604 drm_modeset_backoff(ctx
);
3607 * Disabling the crtcs gracefully seems nicer. Also the
3608 * g33 docs say we should at least disable all the planes.
3610 state
= drm_atomic_helper_duplicate_state(dev
, ctx
);
3611 if (IS_ERR(state
)) {
3612 ret
= PTR_ERR(state
);
3613 DRM_ERROR("Duplicating state failed with %i\n", ret
);
3617 ret
= drm_atomic_helper_disable_all(dev
, ctx
);
3619 DRM_ERROR("Suspending crtc's failed with %i\n", ret
);
3620 drm_atomic_state_put(state
);
3624 dev_priv
->modeset_restore_state
= state
;
3625 state
->acquire_ctx
= ctx
;
3628 void intel_finish_reset(struct drm_i915_private
*dev_priv
)
3630 struct drm_device
*dev
= &dev_priv
->drm
;
3631 struct drm_modeset_acquire_ctx
*ctx
= &dev_priv
->reset_ctx
;
3632 struct drm_atomic_state
*state
= dev_priv
->modeset_restore_state
;
3635 /* reset doesn't touch the display */
3636 if (!i915_modparams
.force_reset_modeset_test
&&
3637 !gpu_reset_clobbers_display(dev_priv
))
3643 dev_priv
->modeset_restore_state
= NULL
;
3645 /* reset doesn't touch the display */
3646 if (!gpu_reset_clobbers_display(dev_priv
)) {
3647 /* for testing only restore the display */
3648 ret
= __intel_display_resume(dev
, state
, ctx
);
3650 DRM_ERROR("Restoring old state failed with %i\n", ret
);
3653 * The display has been reset as well,
3654 * so need a full re-initialization.
3656 intel_runtime_pm_disable_interrupts(dev_priv
);
3657 intel_runtime_pm_enable_interrupts(dev_priv
);
3659 intel_pps_unlock_regs_wa(dev_priv
);
3660 intel_modeset_init_hw(dev
);
3661 intel_init_clock_gating(dev_priv
);
3663 spin_lock_irq(&dev_priv
->irq_lock
);
3664 if (dev_priv
->display
.hpd_irq_setup
)
3665 dev_priv
->display
.hpd_irq_setup(dev_priv
);
3666 spin_unlock_irq(&dev_priv
->irq_lock
);
3668 ret
= __intel_display_resume(dev
, state
, ctx
);
3670 DRM_ERROR("Restoring old state failed with %i\n", ret
);
3672 intel_hpd_init(dev_priv
);
3675 drm_atomic_state_put(state
);
3677 drm_modeset_drop_locks(ctx
);
3678 drm_modeset_acquire_fini(ctx
);
3679 mutex_unlock(&dev
->mode_config
.mutex
);
3681 clear_bit(I915_RESET_MODESET
, &dev_priv
->gpu_error
.flags
);
3684 static void intel_update_pipe_config(const struct intel_crtc_state
*old_crtc_state
,
3685 const struct intel_crtc_state
*new_crtc_state
)
3687 struct intel_crtc
*crtc
= to_intel_crtc(new_crtc_state
->base
.crtc
);
3688 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
3690 /* drm_atomic_helper_update_legacy_modeset_state might not be called. */
3691 crtc
->base
.mode
= new_crtc_state
->base
.mode
;
3694 * Update pipe size and adjust fitter if needed: the reason for this is
3695 * that in compute_mode_changes we check the native mode (not the pfit
3696 * mode) to see if we can flip rather than do a full mode set. In the
3697 * fastboot case, we'll flip, but if we don't update the pipesrc and
3698 * pfit state, we'll end up with a big fb scanned out into the wrong
3702 I915_WRITE(PIPESRC(crtc
->pipe
),
3703 ((new_crtc_state
->pipe_src_w
- 1) << 16) |
3704 (new_crtc_state
->pipe_src_h
- 1));
3706 /* on skylake this is done by detaching scalers */
3707 if (INTEL_GEN(dev_priv
) >= 9) {
3708 skl_detach_scalers(crtc
);
3710 if (new_crtc_state
->pch_pfit
.enabled
)
3711 skylake_pfit_enable(crtc
);
3712 } else if (HAS_PCH_SPLIT(dev_priv
)) {
3713 if (new_crtc_state
->pch_pfit
.enabled
)
3714 ironlake_pfit_enable(crtc
);
3715 else if (old_crtc_state
->pch_pfit
.enabled
)
3716 ironlake_pfit_disable(crtc
, true);
3720 static void intel_fdi_normal_train(struct intel_crtc
*crtc
)
3722 struct drm_device
*dev
= crtc
->base
.dev
;
3723 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3724 int pipe
= crtc
->pipe
;
3728 /* enable normal train */
3729 reg
= FDI_TX_CTL(pipe
);
3730 temp
= I915_READ(reg
);
3731 if (IS_IVYBRIDGE(dev_priv
)) {
3732 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
3733 temp
|= FDI_LINK_TRAIN_NONE_IVB
| FDI_TX_ENHANCE_FRAME_ENABLE
;
3735 temp
&= ~FDI_LINK_TRAIN_NONE
;
3736 temp
|= FDI_LINK_TRAIN_NONE
| FDI_TX_ENHANCE_FRAME_ENABLE
;
3738 I915_WRITE(reg
, temp
);
3740 reg
= FDI_RX_CTL(pipe
);
3741 temp
= I915_READ(reg
);
3742 if (HAS_PCH_CPT(dev_priv
)) {
3743 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3744 temp
|= FDI_LINK_TRAIN_NORMAL_CPT
;
3746 temp
&= ~FDI_LINK_TRAIN_NONE
;
3747 temp
|= FDI_LINK_TRAIN_NONE
;
3749 I915_WRITE(reg
, temp
| FDI_RX_ENHANCE_FRAME_ENABLE
);
3751 /* wait one idle pattern time */
3755 /* IVB wants error correction enabled */
3756 if (IS_IVYBRIDGE(dev_priv
))
3757 I915_WRITE(reg
, I915_READ(reg
) | FDI_FS_ERRC_ENABLE
|
3758 FDI_FE_ERRC_ENABLE
);
3761 /* The FDI link training functions for ILK/Ibexpeak. */
3762 static void ironlake_fdi_link_train(struct intel_crtc
*crtc
,
3763 const struct intel_crtc_state
*crtc_state
)
3765 struct drm_device
*dev
= crtc
->base
.dev
;
3766 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3767 int pipe
= crtc
->pipe
;
3771 /* FDI needs bits from pipe first */
3772 assert_pipe_enabled(dev_priv
, pipe
);
3774 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3776 reg
= FDI_RX_IMR(pipe
);
3777 temp
= I915_READ(reg
);
3778 temp
&= ~FDI_RX_SYMBOL_LOCK
;
3779 temp
&= ~FDI_RX_BIT_LOCK
;
3780 I915_WRITE(reg
, temp
);
3784 /* enable CPU FDI TX and PCH FDI RX */
3785 reg
= FDI_TX_CTL(pipe
);
3786 temp
= I915_READ(reg
);
3787 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
3788 temp
|= FDI_DP_PORT_WIDTH(crtc_state
->fdi_lanes
);
3789 temp
&= ~FDI_LINK_TRAIN_NONE
;
3790 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3791 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
3793 reg
= FDI_RX_CTL(pipe
);
3794 temp
= I915_READ(reg
);
3795 temp
&= ~FDI_LINK_TRAIN_NONE
;
3796 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3797 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
3802 /* Ironlake workaround, enable clock pointer after FDI enable*/
3803 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
3804 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
|
3805 FDI_RX_PHASE_SYNC_POINTER_EN
);
3807 reg
= FDI_RX_IIR(pipe
);
3808 for (tries
= 0; tries
< 5; tries
++) {
3809 temp
= I915_READ(reg
);
3810 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3812 if ((temp
& FDI_RX_BIT_LOCK
)) {
3813 DRM_DEBUG_KMS("FDI train 1 done.\n");
3814 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
3819 DRM_ERROR("FDI train 1 fail!\n");
3822 reg
= FDI_TX_CTL(pipe
);
3823 temp
= I915_READ(reg
);
3824 temp
&= ~FDI_LINK_TRAIN_NONE
;
3825 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3826 I915_WRITE(reg
, temp
);
3828 reg
= FDI_RX_CTL(pipe
);
3829 temp
= I915_READ(reg
);
3830 temp
&= ~FDI_LINK_TRAIN_NONE
;
3831 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3832 I915_WRITE(reg
, temp
);
3837 reg
= FDI_RX_IIR(pipe
);
3838 for (tries
= 0; tries
< 5; tries
++) {
3839 temp
= I915_READ(reg
);
3840 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3842 if (temp
& FDI_RX_SYMBOL_LOCK
) {
3843 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3844 DRM_DEBUG_KMS("FDI train 2 done.\n");
3849 DRM_ERROR("FDI train 2 fail!\n");
3851 DRM_DEBUG_KMS("FDI train done\n");
3855 static const int snb_b_fdi_train_param
[] = {
3856 FDI_LINK_TRAIN_400MV_0DB_SNB_B
,
3857 FDI_LINK_TRAIN_400MV_6DB_SNB_B
,
3858 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B
,
3859 FDI_LINK_TRAIN_800MV_0DB_SNB_B
,
3862 /* The FDI link training functions for SNB/Cougarpoint. */
3863 static void gen6_fdi_link_train(struct intel_crtc
*crtc
,
3864 const struct intel_crtc_state
*crtc_state
)
3866 struct drm_device
*dev
= crtc
->base
.dev
;
3867 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3868 int pipe
= crtc
->pipe
;
3872 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3874 reg
= FDI_RX_IMR(pipe
);
3875 temp
= I915_READ(reg
);
3876 temp
&= ~FDI_RX_SYMBOL_LOCK
;
3877 temp
&= ~FDI_RX_BIT_LOCK
;
3878 I915_WRITE(reg
, temp
);
3883 /* enable CPU FDI TX and PCH FDI RX */
3884 reg
= FDI_TX_CTL(pipe
);
3885 temp
= I915_READ(reg
);
3886 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
3887 temp
|= FDI_DP_PORT_WIDTH(crtc_state
->fdi_lanes
);
3888 temp
&= ~FDI_LINK_TRAIN_NONE
;
3889 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3890 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3892 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
3893 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
3895 I915_WRITE(FDI_RX_MISC(pipe
),
3896 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
3898 reg
= FDI_RX_CTL(pipe
);
3899 temp
= I915_READ(reg
);
3900 if (HAS_PCH_CPT(dev_priv
)) {
3901 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3902 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
3904 temp
&= ~FDI_LINK_TRAIN_NONE
;
3905 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3907 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
3912 for (i
= 0; i
< 4; i
++) {
3913 reg
= FDI_TX_CTL(pipe
);
3914 temp
= I915_READ(reg
);
3915 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3916 temp
|= snb_b_fdi_train_param
[i
];
3917 I915_WRITE(reg
, temp
);
3922 for (retry
= 0; retry
< 5; retry
++) {
3923 reg
= FDI_RX_IIR(pipe
);
3924 temp
= I915_READ(reg
);
3925 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3926 if (temp
& FDI_RX_BIT_LOCK
) {
3927 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
3928 DRM_DEBUG_KMS("FDI train 1 done.\n");
3937 DRM_ERROR("FDI train 1 fail!\n");
3940 reg
= FDI_TX_CTL(pipe
);
3941 temp
= I915_READ(reg
);
3942 temp
&= ~FDI_LINK_TRAIN_NONE
;
3943 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3944 if (IS_GEN6(dev_priv
)) {
3945 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3947 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
3949 I915_WRITE(reg
, temp
);
3951 reg
= FDI_RX_CTL(pipe
);
3952 temp
= I915_READ(reg
);
3953 if (HAS_PCH_CPT(dev_priv
)) {
3954 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3955 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
3957 temp
&= ~FDI_LINK_TRAIN_NONE
;
3958 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3960 I915_WRITE(reg
, temp
);
3965 for (i
= 0; i
< 4; i
++) {
3966 reg
= FDI_TX_CTL(pipe
);
3967 temp
= I915_READ(reg
);
3968 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3969 temp
|= snb_b_fdi_train_param
[i
];
3970 I915_WRITE(reg
, temp
);
3975 for (retry
= 0; retry
< 5; retry
++) {
3976 reg
= FDI_RX_IIR(pipe
);
3977 temp
= I915_READ(reg
);
3978 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3979 if (temp
& FDI_RX_SYMBOL_LOCK
) {
3980 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3981 DRM_DEBUG_KMS("FDI train 2 done.\n");
3990 DRM_ERROR("FDI train 2 fail!\n");
3992 DRM_DEBUG_KMS("FDI train done.\n");
3995 /* Manual link training for Ivy Bridge A0 parts */
3996 static void ivb_manual_fdi_link_train(struct intel_crtc
*crtc
,
3997 const struct intel_crtc_state
*crtc_state
)
3999 struct drm_device
*dev
= crtc
->base
.dev
;
4000 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4001 int pipe
= crtc
->pipe
;
4005 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
4007 reg
= FDI_RX_IMR(pipe
);
4008 temp
= I915_READ(reg
);
4009 temp
&= ~FDI_RX_SYMBOL_LOCK
;
4010 temp
&= ~FDI_RX_BIT_LOCK
;
4011 I915_WRITE(reg
, temp
);
4016 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
4017 I915_READ(FDI_RX_IIR(pipe
)));
4019 /* Try each vswing and preemphasis setting twice before moving on */
4020 for (j
= 0; j
< ARRAY_SIZE(snb_b_fdi_train_param
) * 2; j
++) {
4021 /* disable first in case we need to retry */
4022 reg
= FDI_TX_CTL(pipe
);
4023 temp
= I915_READ(reg
);
4024 temp
&= ~(FDI_LINK_TRAIN_AUTO
| FDI_LINK_TRAIN_NONE_IVB
);
4025 temp
&= ~FDI_TX_ENABLE
;
4026 I915_WRITE(reg
, temp
);
4028 reg
= FDI_RX_CTL(pipe
);
4029 temp
= I915_READ(reg
);
4030 temp
&= ~FDI_LINK_TRAIN_AUTO
;
4031 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
4032 temp
&= ~FDI_RX_ENABLE
;
4033 I915_WRITE(reg
, temp
);
4035 /* enable CPU FDI TX and PCH FDI RX */
4036 reg
= FDI_TX_CTL(pipe
);
4037 temp
= I915_READ(reg
);
4038 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
4039 temp
|= FDI_DP_PORT_WIDTH(crtc_state
->fdi_lanes
);
4040 temp
|= FDI_LINK_TRAIN_PATTERN_1_IVB
;
4041 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
4042 temp
|= snb_b_fdi_train_param
[j
/2];
4043 temp
|= FDI_COMPOSITE_SYNC
;
4044 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
4046 I915_WRITE(FDI_RX_MISC(pipe
),
4047 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
4049 reg
= FDI_RX_CTL(pipe
);
4050 temp
= I915_READ(reg
);
4051 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
4052 temp
|= FDI_COMPOSITE_SYNC
;
4053 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
4056 udelay(1); /* should be 0.5us */
4058 for (i
= 0; i
< 4; i
++) {
4059 reg
= FDI_RX_IIR(pipe
);
4060 temp
= I915_READ(reg
);
4061 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
4063 if (temp
& FDI_RX_BIT_LOCK
||
4064 (I915_READ(reg
) & FDI_RX_BIT_LOCK
)) {
4065 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
4066 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n",
4070 udelay(1); /* should be 0.5us */
4073 DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j
/ 2);
4078 reg
= FDI_TX_CTL(pipe
);
4079 temp
= I915_READ(reg
);
4080 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
4081 temp
|= FDI_LINK_TRAIN_PATTERN_2_IVB
;
4082 I915_WRITE(reg
, temp
);
4084 reg
= FDI_RX_CTL(pipe
);
4085 temp
= I915_READ(reg
);
4086 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
4087 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
4088 I915_WRITE(reg
, temp
);
4091 udelay(2); /* should be 1.5us */
4093 for (i
= 0; i
< 4; i
++) {
4094 reg
= FDI_RX_IIR(pipe
);
4095 temp
= I915_READ(reg
);
4096 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
4098 if (temp
& FDI_RX_SYMBOL_LOCK
||
4099 (I915_READ(reg
) & FDI_RX_SYMBOL_LOCK
)) {
4100 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
4101 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n",
4105 udelay(2); /* should be 1.5us */
4108 DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j
/ 2);
4112 DRM_DEBUG_KMS("FDI train done.\n");
4115 static void ironlake_fdi_pll_enable(struct intel_crtc
*intel_crtc
)
4117 struct drm_device
*dev
= intel_crtc
->base
.dev
;
4118 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4119 int pipe
= intel_crtc
->pipe
;
4123 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
4124 reg
= FDI_RX_CTL(pipe
);
4125 temp
= I915_READ(reg
);
4126 temp
&= ~(FDI_DP_PORT_WIDTH_MASK
| (0x7 << 16));
4127 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
->fdi_lanes
);
4128 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
4129 I915_WRITE(reg
, temp
| FDI_RX_PLL_ENABLE
);
4134 /* Switch from Rawclk to PCDclk */
4135 temp
= I915_READ(reg
);
4136 I915_WRITE(reg
, temp
| FDI_PCDCLK
);
4141 /* Enable CPU FDI TX PLL, always on for Ironlake */
4142 reg
= FDI_TX_CTL(pipe
);
4143 temp
= I915_READ(reg
);
4144 if ((temp
& FDI_TX_PLL_ENABLE
) == 0) {
4145 I915_WRITE(reg
, temp
| FDI_TX_PLL_ENABLE
);
4152 static void ironlake_fdi_pll_disable(struct intel_crtc
*intel_crtc
)
4154 struct drm_device
*dev
= intel_crtc
->base
.dev
;
4155 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4156 int pipe
= intel_crtc
->pipe
;
4160 /* Switch from PCDclk to Rawclk */
4161 reg
= FDI_RX_CTL(pipe
);
4162 temp
= I915_READ(reg
);
4163 I915_WRITE(reg
, temp
& ~FDI_PCDCLK
);
4165 /* Disable CPU FDI TX PLL */
4166 reg
= FDI_TX_CTL(pipe
);
4167 temp
= I915_READ(reg
);
4168 I915_WRITE(reg
, temp
& ~FDI_TX_PLL_ENABLE
);
4173 reg
= FDI_RX_CTL(pipe
);
4174 temp
= I915_READ(reg
);
4175 I915_WRITE(reg
, temp
& ~FDI_RX_PLL_ENABLE
);
4177 /* Wait for the clocks to turn off. */
4182 static void ironlake_fdi_disable(struct drm_crtc
*crtc
)
4184 struct drm_device
*dev
= crtc
->dev
;
4185 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4186 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4187 int pipe
= intel_crtc
->pipe
;
4191 /* disable CPU FDI tx and PCH FDI rx */
4192 reg
= FDI_TX_CTL(pipe
);
4193 temp
= I915_READ(reg
);
4194 I915_WRITE(reg
, temp
& ~FDI_TX_ENABLE
);
4197 reg
= FDI_RX_CTL(pipe
);
4198 temp
= I915_READ(reg
);
4199 temp
&= ~(0x7 << 16);
4200 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
4201 I915_WRITE(reg
, temp
& ~FDI_RX_ENABLE
);
4206 /* Ironlake workaround, disable clock pointer after downing FDI */
4207 if (HAS_PCH_IBX(dev_priv
))
4208 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
4210 /* still set train pattern 1 */
4211 reg
= FDI_TX_CTL(pipe
);
4212 temp
= I915_READ(reg
);
4213 temp
&= ~FDI_LINK_TRAIN_NONE
;
4214 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
4215 I915_WRITE(reg
, temp
);
4217 reg
= FDI_RX_CTL(pipe
);
4218 temp
= I915_READ(reg
);
4219 if (HAS_PCH_CPT(dev_priv
)) {
4220 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
4221 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
4223 temp
&= ~FDI_LINK_TRAIN_NONE
;
4224 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
4226 /* BPC in FDI rx is consistent with that in PIPECONF */
4227 temp
&= ~(0x07 << 16);
4228 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
4229 I915_WRITE(reg
, temp
);
4235 bool intel_has_pending_fb_unpin(struct drm_i915_private
*dev_priv
)
4237 struct drm_crtc
*crtc
;
4240 drm_for_each_crtc(crtc
, &dev_priv
->drm
) {
4241 struct drm_crtc_commit
*commit
;
4242 spin_lock(&crtc
->commit_lock
);
4243 commit
= list_first_entry_or_null(&crtc
->commit_list
,
4244 struct drm_crtc_commit
, commit_entry
);
4245 cleanup_done
= commit
?
4246 try_wait_for_completion(&commit
->cleanup_done
) : true;
4247 spin_unlock(&crtc
->commit_lock
);
4252 drm_crtc_wait_one_vblank(crtc
);
4260 void lpt_disable_iclkip(struct drm_i915_private
*dev_priv
)
4264 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_GATE
);
4266 mutex_lock(&dev_priv
->sb_lock
);
4268 temp
= intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
);
4269 temp
|= SBI_SSCCTL_DISABLE
;
4270 intel_sbi_write(dev_priv
, SBI_SSCCTL6
, temp
, SBI_ICLK
);
4272 mutex_unlock(&dev_priv
->sb_lock
);
4275 /* Program iCLKIP clock to the desired frequency */
4276 static void lpt_program_iclkip(struct intel_crtc
*crtc
)
4278 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
4279 int clock
= crtc
->config
->base
.adjusted_mode
.crtc_clock
;
4280 u32 divsel
, phaseinc
, auxdiv
, phasedir
= 0;
4283 lpt_disable_iclkip(dev_priv
);
4285 /* The iCLK virtual clock root frequency is in MHz,
4286 * but the adjusted_mode->crtc_clock in in KHz. To get the
4287 * divisors, it is necessary to divide one by another, so we
4288 * convert the virtual clock precision to KHz here for higher
4291 for (auxdiv
= 0; auxdiv
< 2; auxdiv
++) {
4292 u32 iclk_virtual_root_freq
= 172800 * 1000;
4293 u32 iclk_pi_range
= 64;
4294 u32 desired_divisor
;
4296 desired_divisor
= DIV_ROUND_CLOSEST(iclk_virtual_root_freq
,
4298 divsel
= (desired_divisor
/ iclk_pi_range
) - 2;
4299 phaseinc
= desired_divisor
% iclk_pi_range
;
4302 * Near 20MHz is a corner case which is
4303 * out of range for the 7-bit divisor
4309 /* This should not happen with any sane values */
4310 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel
) &
4311 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
);
4312 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir
) &
4313 ~SBI_SSCDIVINTPHASE_INCVAL_MASK
);
4315 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
4322 mutex_lock(&dev_priv
->sb_lock
);
4324 /* Program SSCDIVINTPHASE6 */
4325 temp
= intel_sbi_read(dev_priv
, SBI_SSCDIVINTPHASE6
, SBI_ICLK
);
4326 temp
&= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
;
4327 temp
|= SBI_SSCDIVINTPHASE_DIVSEL(divsel
);
4328 temp
&= ~SBI_SSCDIVINTPHASE_INCVAL_MASK
;
4329 temp
|= SBI_SSCDIVINTPHASE_INCVAL(phaseinc
);
4330 temp
|= SBI_SSCDIVINTPHASE_DIR(phasedir
);
4331 temp
|= SBI_SSCDIVINTPHASE_PROPAGATE
;
4332 intel_sbi_write(dev_priv
, SBI_SSCDIVINTPHASE6
, temp
, SBI_ICLK
);
4334 /* Program SSCAUXDIV */
4335 temp
= intel_sbi_read(dev_priv
, SBI_SSCAUXDIV6
, SBI_ICLK
);
4336 temp
&= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
4337 temp
|= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv
);
4338 intel_sbi_write(dev_priv
, SBI_SSCAUXDIV6
, temp
, SBI_ICLK
);
4340 /* Enable modulator and associated divider */
4341 temp
= intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
);
4342 temp
&= ~SBI_SSCCTL_DISABLE
;
4343 intel_sbi_write(dev_priv
, SBI_SSCCTL6
, temp
, SBI_ICLK
);
4345 mutex_unlock(&dev_priv
->sb_lock
);
4347 /* Wait for initialization time */
4350 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_UNGATE
);
4353 int lpt_get_iclkip(struct drm_i915_private
*dev_priv
)
4355 u32 divsel
, phaseinc
, auxdiv
;
4356 u32 iclk_virtual_root_freq
= 172800 * 1000;
4357 u32 iclk_pi_range
= 64;
4358 u32 desired_divisor
;
4361 if ((I915_READ(PIXCLK_GATE
) & PIXCLK_GATE_UNGATE
) == 0)
4364 mutex_lock(&dev_priv
->sb_lock
);
4366 temp
= intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
);
4367 if (temp
& SBI_SSCCTL_DISABLE
) {
4368 mutex_unlock(&dev_priv
->sb_lock
);
4372 temp
= intel_sbi_read(dev_priv
, SBI_SSCDIVINTPHASE6
, SBI_ICLK
);
4373 divsel
= (temp
& SBI_SSCDIVINTPHASE_DIVSEL_MASK
) >>
4374 SBI_SSCDIVINTPHASE_DIVSEL_SHIFT
;
4375 phaseinc
= (temp
& SBI_SSCDIVINTPHASE_INCVAL_MASK
) >>
4376 SBI_SSCDIVINTPHASE_INCVAL_SHIFT
;
4378 temp
= intel_sbi_read(dev_priv
, SBI_SSCAUXDIV6
, SBI_ICLK
);
4379 auxdiv
= (temp
& SBI_SSCAUXDIV_FINALDIV2SEL_MASK
) >>
4380 SBI_SSCAUXDIV_FINALDIV2SEL_SHIFT
;
4382 mutex_unlock(&dev_priv
->sb_lock
);
4384 desired_divisor
= (divsel
+ 2) * iclk_pi_range
+ phaseinc
;
4386 return DIV_ROUND_CLOSEST(iclk_virtual_root_freq
,
4387 desired_divisor
<< auxdiv
);
4390 static void ironlake_pch_transcoder_set_timings(struct intel_crtc
*crtc
,
4391 enum pipe pch_transcoder
)
4393 struct drm_device
*dev
= crtc
->base
.dev
;
4394 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4395 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
4397 I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder
),
4398 I915_READ(HTOTAL(cpu_transcoder
)));
4399 I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder
),
4400 I915_READ(HBLANK(cpu_transcoder
)));
4401 I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder
),
4402 I915_READ(HSYNC(cpu_transcoder
)));
4404 I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder
),
4405 I915_READ(VTOTAL(cpu_transcoder
)));
4406 I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder
),
4407 I915_READ(VBLANK(cpu_transcoder
)));
4408 I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder
),
4409 I915_READ(VSYNC(cpu_transcoder
)));
4410 I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder
),
4411 I915_READ(VSYNCSHIFT(cpu_transcoder
)));
4414 static void cpt_set_fdi_bc_bifurcation(struct drm_device
*dev
, bool enable
)
4416 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4419 temp
= I915_READ(SOUTH_CHICKEN1
);
4420 if (!!(temp
& FDI_BC_BIFURCATION_SELECT
) == enable
)
4423 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B
)) & FDI_RX_ENABLE
);
4424 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C
)) & FDI_RX_ENABLE
);
4426 temp
&= ~FDI_BC_BIFURCATION_SELECT
;
4428 temp
|= FDI_BC_BIFURCATION_SELECT
;
4430 DRM_DEBUG_KMS("%sabling fdi C rx\n", enable
? "en" : "dis");
4431 I915_WRITE(SOUTH_CHICKEN1
, temp
);
4432 POSTING_READ(SOUTH_CHICKEN1
);
4435 static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc
*intel_crtc
)
4437 struct drm_device
*dev
= intel_crtc
->base
.dev
;
4439 switch (intel_crtc
->pipe
) {
4443 if (intel_crtc
->config
->fdi_lanes
> 2)
4444 cpt_set_fdi_bc_bifurcation(dev
, false);
4446 cpt_set_fdi_bc_bifurcation(dev
, true);
4450 cpt_set_fdi_bc_bifurcation(dev
, true);
4458 /* Return which DP Port should be selected for Transcoder DP control */
4460 intel_trans_dp_port_sel(struct intel_crtc
*crtc
)
4462 struct drm_device
*dev
= crtc
->base
.dev
;
4463 struct intel_encoder
*encoder
;
4465 for_each_encoder_on_crtc(dev
, &crtc
->base
, encoder
) {
4466 if (encoder
->type
== INTEL_OUTPUT_DP
||
4467 encoder
->type
== INTEL_OUTPUT_EDP
)
4468 return enc_to_dig_port(&encoder
->base
)->port
;
4475 * Enable PCH resources required for PCH ports:
4477 * - FDI training & RX/TX
4478 * - update transcoder timings
4479 * - DP transcoding bits
4482 static void ironlake_pch_enable(const struct intel_crtc_state
*crtc_state
)
4484 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
4485 struct drm_device
*dev
= crtc
->base
.dev
;
4486 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4487 int pipe
= crtc
->pipe
;
4490 assert_pch_transcoder_disabled(dev_priv
, pipe
);
4492 if (IS_IVYBRIDGE(dev_priv
))
4493 ivybridge_update_fdi_bc_bifurcation(crtc
);
4495 /* Write the TU size bits before fdi link training, so that error
4496 * detection works. */
4497 I915_WRITE(FDI_RX_TUSIZE1(pipe
),
4498 I915_READ(PIPE_DATA_M1(pipe
)) & TU_SIZE_MASK
);
4500 /* For PCH output, training FDI link */
4501 dev_priv
->display
.fdi_link_train(crtc
, crtc_state
);
4503 /* We need to program the right clock selection before writing the pixel
4504 * mutliplier into the DPLL. */
4505 if (HAS_PCH_CPT(dev_priv
)) {
4508 temp
= I915_READ(PCH_DPLL_SEL
);
4509 temp
|= TRANS_DPLL_ENABLE(pipe
);
4510 sel
= TRANS_DPLLB_SEL(pipe
);
4511 if (crtc_state
->shared_dpll
==
4512 intel_get_shared_dpll_by_id(dev_priv
, DPLL_ID_PCH_PLL_B
))
4516 I915_WRITE(PCH_DPLL_SEL
, temp
);
4519 /* XXX: pch pll's can be enabled any time before we enable the PCH
4520 * transcoder, and we actually should do this to not upset any PCH
4521 * transcoder that already use the clock when we share it.
4523 * Note that enable_shared_dpll tries to do the right thing, but
4524 * get_shared_dpll unconditionally resets the pll - we need that to have
4525 * the right LVDS enable sequence. */
4526 intel_enable_shared_dpll(crtc
);
4528 /* set transcoder timing, panel must allow it */
4529 assert_panel_unlocked(dev_priv
, pipe
);
4530 ironlake_pch_transcoder_set_timings(crtc
, pipe
);
4532 intel_fdi_normal_train(crtc
);
4534 /* For PCH DP, enable TRANS_DP_CTL */
4535 if (HAS_PCH_CPT(dev_priv
) &&
4536 intel_crtc_has_dp_encoder(crtc_state
)) {
4537 const struct drm_display_mode
*adjusted_mode
=
4538 &crtc_state
->base
.adjusted_mode
;
4539 u32 bpc
= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) >> 5;
4540 i915_reg_t reg
= TRANS_DP_CTL(pipe
);
4541 temp
= I915_READ(reg
);
4542 temp
&= ~(TRANS_DP_PORT_SEL_MASK
|
4543 TRANS_DP_SYNC_MASK
|
4545 temp
|= TRANS_DP_OUTPUT_ENABLE
;
4546 temp
|= bpc
<< 9; /* same format but at 11:9 */
4548 if (adjusted_mode
->flags
& DRM_MODE_FLAG_PHSYNC
)
4549 temp
|= TRANS_DP_HSYNC_ACTIVE_HIGH
;
4550 if (adjusted_mode
->flags
& DRM_MODE_FLAG_PVSYNC
)
4551 temp
|= TRANS_DP_VSYNC_ACTIVE_HIGH
;
4553 switch (intel_trans_dp_port_sel(crtc
)) {
4555 temp
|= TRANS_DP_PORT_SEL_B
;
4558 temp
|= TRANS_DP_PORT_SEL_C
;
4561 temp
|= TRANS_DP_PORT_SEL_D
;
4567 I915_WRITE(reg
, temp
);
4570 ironlake_enable_pch_transcoder(dev_priv
, pipe
);
4573 static void lpt_pch_enable(const struct intel_crtc_state
*crtc_state
)
4575 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
4576 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
4577 enum transcoder cpu_transcoder
= crtc_state
->cpu_transcoder
;
4579 assert_pch_transcoder_disabled(dev_priv
, PIPE_A
);
4581 lpt_program_iclkip(crtc
);
4583 /* Set transcoder timing. */
4584 ironlake_pch_transcoder_set_timings(crtc
, PIPE_A
);
4586 lpt_enable_pch_transcoder(dev_priv
, cpu_transcoder
);
4589 static void cpt_verify_modeset(struct drm_device
*dev
, int pipe
)
4591 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4592 i915_reg_t dslreg
= PIPEDSL(pipe
);
4595 temp
= I915_READ(dslreg
);
4597 if (wait_for(I915_READ(dslreg
) != temp
, 5)) {
4598 if (wait_for(I915_READ(dslreg
) != temp
, 5))
4599 DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe
));
4604 skl_update_scaler(struct intel_crtc_state
*crtc_state
, bool force_detach
,
4605 unsigned int scaler_user
, int *scaler_id
,
4606 int src_w
, int src_h
, int dst_w
, int dst_h
)
4608 struct intel_crtc_scaler_state
*scaler_state
=
4609 &crtc_state
->scaler_state
;
4610 struct intel_crtc
*intel_crtc
=
4611 to_intel_crtc(crtc_state
->base
.crtc
);
4612 struct drm_i915_private
*dev_priv
= to_i915(intel_crtc
->base
.dev
);
4613 const struct drm_display_mode
*adjusted_mode
=
4614 &crtc_state
->base
.adjusted_mode
;
4618 * Src coordinates are already rotated by 270 degrees for
4619 * the 90/270 degree plane rotation cases (to match the
4620 * GTT mapping), hence no need to account for rotation here.
4622 need_scaling
= src_w
!= dst_w
|| src_h
!= dst_h
;
4624 if (crtc_state
->ycbcr420
&& scaler_user
== SKL_CRTC_INDEX
)
4625 need_scaling
= true;
4628 * Scaling/fitting not supported in IF-ID mode in GEN9+
4629 * TODO: Interlace fetch mode doesn't support YUV420 planar formats.
4630 * Once NV12 is enabled, handle it here while allocating scaler
4633 if (INTEL_GEN(dev_priv
) >= 9 && crtc_state
->base
.enable
&&
4634 need_scaling
&& adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
) {
4635 DRM_DEBUG_KMS("Pipe/Plane scaling not supported with IF-ID mode\n");
4640 * if plane is being disabled or scaler is no more required or force detach
4641 * - free scaler binded to this plane/crtc
4642 * - in order to do this, update crtc->scaler_usage
4644 * Here scaler state in crtc_state is set free so that
4645 * scaler can be assigned to other user. Actual register
4646 * update to free the scaler is done in plane/panel-fit programming.
4647 * For this purpose crtc/plane_state->scaler_id isn't reset here.
4649 if (force_detach
|| !need_scaling
) {
4650 if (*scaler_id
>= 0) {
4651 scaler_state
->scaler_users
&= ~(1 << scaler_user
);
4652 scaler_state
->scalers
[*scaler_id
].in_use
= 0;
4654 DRM_DEBUG_KMS("scaler_user index %u.%u: "
4655 "Staged freeing scaler id %d scaler_users = 0x%x\n",
4656 intel_crtc
->pipe
, scaler_user
, *scaler_id
,
4657 scaler_state
->scaler_users
);
4664 if (src_w
< SKL_MIN_SRC_W
|| src_h
< SKL_MIN_SRC_H
||
4665 dst_w
< SKL_MIN_DST_W
|| dst_h
< SKL_MIN_DST_H
||
4667 src_w
> SKL_MAX_SRC_W
|| src_h
> SKL_MAX_SRC_H
||
4668 dst_w
> SKL_MAX_DST_W
|| dst_h
> SKL_MAX_DST_H
) {
4669 DRM_DEBUG_KMS("scaler_user index %u.%u: src %ux%u dst %ux%u "
4670 "size is out of scaler range\n",
4671 intel_crtc
->pipe
, scaler_user
, src_w
, src_h
, dst_w
, dst_h
);
4675 /* mark this plane as a scaler user in crtc_state */
4676 scaler_state
->scaler_users
|= (1 << scaler_user
);
4677 DRM_DEBUG_KMS("scaler_user index %u.%u: "
4678 "staged scaling request for %ux%u->%ux%u scaler_users = 0x%x\n",
4679 intel_crtc
->pipe
, scaler_user
, src_w
, src_h
, dst_w
, dst_h
,
4680 scaler_state
->scaler_users
);
4686 * skl_update_scaler_crtc - Stages update to scaler state for a given crtc.
4688 * @state: crtc's scaler state
4691 * 0 - scaler_usage updated successfully
4692 * error - requested scaling cannot be supported or other error condition
4694 int skl_update_scaler_crtc(struct intel_crtc_state
*state
)
4696 const struct drm_display_mode
*adjusted_mode
= &state
->base
.adjusted_mode
;
4698 return skl_update_scaler(state
, !state
->base
.active
, SKL_CRTC_INDEX
,
4699 &state
->scaler_state
.scaler_id
,
4700 state
->pipe_src_w
, state
->pipe_src_h
,
4701 adjusted_mode
->crtc_hdisplay
, adjusted_mode
->crtc_vdisplay
);
4705 * skl_update_scaler_plane - Stages update to scaler state for a given plane.
4707 * @state: crtc's scaler state
4708 * @plane_state: atomic plane state to update
4711 * 0 - scaler_usage updated successfully
4712 * error - requested scaling cannot be supported or other error condition
4714 static int skl_update_scaler_plane(struct intel_crtc_state
*crtc_state
,
4715 struct intel_plane_state
*plane_state
)
4718 struct intel_plane
*intel_plane
=
4719 to_intel_plane(plane_state
->base
.plane
);
4720 struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
4723 bool force_detach
= !fb
|| !plane_state
->base
.visible
;
4725 ret
= skl_update_scaler(crtc_state
, force_detach
,
4726 drm_plane_index(&intel_plane
->base
),
4727 &plane_state
->scaler_id
,
4728 drm_rect_width(&plane_state
->base
.src
) >> 16,
4729 drm_rect_height(&plane_state
->base
.src
) >> 16,
4730 drm_rect_width(&plane_state
->base
.dst
),
4731 drm_rect_height(&plane_state
->base
.dst
));
4733 if (ret
|| plane_state
->scaler_id
< 0)
4736 /* check colorkey */
4737 if (plane_state
->ckey
.flags
!= I915_SET_COLORKEY_NONE
) {
4738 DRM_DEBUG_KMS("[PLANE:%d:%s] scaling with color key not allowed",
4739 intel_plane
->base
.base
.id
,
4740 intel_plane
->base
.name
);
4744 /* Check src format */
4745 switch (fb
->format
->format
) {
4746 case DRM_FORMAT_RGB565
:
4747 case DRM_FORMAT_XBGR8888
:
4748 case DRM_FORMAT_XRGB8888
:
4749 case DRM_FORMAT_ABGR8888
:
4750 case DRM_FORMAT_ARGB8888
:
4751 case DRM_FORMAT_XRGB2101010
:
4752 case DRM_FORMAT_XBGR2101010
:
4753 case DRM_FORMAT_YUYV
:
4754 case DRM_FORMAT_YVYU
:
4755 case DRM_FORMAT_UYVY
:
4756 case DRM_FORMAT_VYUY
:
4759 DRM_DEBUG_KMS("[PLANE:%d:%s] FB:%d unsupported scaling format 0x%x\n",
4760 intel_plane
->base
.base
.id
, intel_plane
->base
.name
,
4761 fb
->base
.id
, fb
->format
->format
);
4768 static void skylake_scaler_disable(struct intel_crtc
*crtc
)
4772 for (i
= 0; i
< crtc
->num_scalers
; i
++)
4773 skl_detach_scaler(crtc
, i
);
4776 static void skylake_pfit_enable(struct intel_crtc
*crtc
)
4778 struct drm_device
*dev
= crtc
->base
.dev
;
4779 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4780 int pipe
= crtc
->pipe
;
4781 struct intel_crtc_scaler_state
*scaler_state
=
4782 &crtc
->config
->scaler_state
;
4784 if (crtc
->config
->pch_pfit
.enabled
) {
4787 if (WARN_ON(crtc
->config
->scaler_state
.scaler_id
< 0))
4790 id
= scaler_state
->scaler_id
;
4791 I915_WRITE(SKL_PS_CTRL(pipe
, id
), PS_SCALER_EN
|
4792 PS_FILTER_MEDIUM
| scaler_state
->scalers
[id
].mode
);
4793 I915_WRITE(SKL_PS_WIN_POS(pipe
, id
), crtc
->config
->pch_pfit
.pos
);
4794 I915_WRITE(SKL_PS_WIN_SZ(pipe
, id
), crtc
->config
->pch_pfit
.size
);
4798 static void ironlake_pfit_enable(struct intel_crtc
*crtc
)
4800 struct drm_device
*dev
= crtc
->base
.dev
;
4801 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4802 int pipe
= crtc
->pipe
;
4804 if (crtc
->config
->pch_pfit
.enabled
) {
4805 /* Force use of hard-coded filter coefficients
4806 * as some pre-programmed values are broken,
4809 if (IS_IVYBRIDGE(dev_priv
) || IS_HASWELL(dev_priv
))
4810 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
|
4811 PF_PIPE_SEL_IVB(pipe
));
4813 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
);
4814 I915_WRITE(PF_WIN_POS(pipe
), crtc
->config
->pch_pfit
.pos
);
4815 I915_WRITE(PF_WIN_SZ(pipe
), crtc
->config
->pch_pfit
.size
);
4819 void hsw_enable_ips(struct intel_crtc
*crtc
)
4821 struct drm_device
*dev
= crtc
->base
.dev
;
4822 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4824 if (!crtc
->config
->ips_enabled
)
4828 * We can only enable IPS after we enable a plane and wait for a vblank
4829 * This function is called from post_plane_update, which is run after
4833 assert_plane_enabled(to_intel_plane(crtc
->base
.primary
));
4835 if (IS_BROADWELL(dev_priv
)) {
4836 mutex_lock(&dev_priv
->pcu_lock
);
4837 WARN_ON(sandybridge_pcode_write(dev_priv
, DISPLAY_IPS_CONTROL
,
4838 IPS_ENABLE
| IPS_PCODE_CONTROL
));
4839 mutex_unlock(&dev_priv
->pcu_lock
);
4840 /* Quoting Art Runyan: "its not safe to expect any particular
4841 * value in IPS_CTL bit 31 after enabling IPS through the
4842 * mailbox." Moreover, the mailbox may return a bogus state,
4843 * so we need to just enable it and continue on.
4846 I915_WRITE(IPS_CTL
, IPS_ENABLE
);
4847 /* The bit only becomes 1 in the next vblank, so this wait here
4848 * is essentially intel_wait_for_vblank. If we don't have this
4849 * and don't wait for vblanks until the end of crtc_enable, then
4850 * the HW state readout code will complain that the expected
4851 * IPS_CTL value is not the one we read. */
4852 if (intel_wait_for_register(dev_priv
,
4853 IPS_CTL
, IPS_ENABLE
, IPS_ENABLE
,
4855 DRM_ERROR("Timed out waiting for IPS enable\n");
4859 void hsw_disable_ips(struct intel_crtc
*crtc
)
4861 struct drm_device
*dev
= crtc
->base
.dev
;
4862 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4864 if (!crtc
->config
->ips_enabled
)
4867 assert_plane_enabled(to_intel_plane(crtc
->base
.primary
));
4869 if (IS_BROADWELL(dev_priv
)) {
4870 mutex_lock(&dev_priv
->pcu_lock
);
4871 WARN_ON(sandybridge_pcode_write(dev_priv
, DISPLAY_IPS_CONTROL
, 0));
4872 mutex_unlock(&dev_priv
->pcu_lock
);
4873 /* wait for pcode to finish disabling IPS, which may take up to 42ms */
4874 if (intel_wait_for_register(dev_priv
,
4875 IPS_CTL
, IPS_ENABLE
, 0,
4877 DRM_ERROR("Timed out waiting for IPS disable\n");
4879 I915_WRITE(IPS_CTL
, 0);
4880 POSTING_READ(IPS_CTL
);
4883 /* We need to wait for a vblank before we can disable the plane. */
4884 intel_wait_for_vblank(dev_priv
, crtc
->pipe
);
4887 static void intel_crtc_dpms_overlay_disable(struct intel_crtc
*intel_crtc
)
4889 if (intel_crtc
->overlay
) {
4890 struct drm_device
*dev
= intel_crtc
->base
.dev
;
4892 mutex_lock(&dev
->struct_mutex
);
4893 (void) intel_overlay_switch_off(intel_crtc
->overlay
);
4894 mutex_unlock(&dev
->struct_mutex
);
4897 /* Let userspace switch the overlay on again. In most cases userspace
4898 * has to recompute where to put it anyway.
4903 * intel_post_enable_primary - Perform operations after enabling primary plane
4904 * @crtc: the CRTC whose primary plane was just enabled
4906 * Performs potentially sleeping operations that must be done after the primary
4907 * plane is enabled, such as updating FBC and IPS. Note that this may be
4908 * called due to an explicit primary plane update, or due to an implicit
4909 * re-enable that is caused when a sprite plane is updated to no longer
4910 * completely hide the primary plane.
4913 intel_post_enable_primary(struct drm_crtc
*crtc
)
4915 struct drm_device
*dev
= crtc
->dev
;
4916 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4917 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4918 int pipe
= intel_crtc
->pipe
;
4921 * FIXME IPS should be fine as long as one plane is
4922 * enabled, but in practice it seems to have problems
4923 * when going from primary only to sprite only and vice
4926 hsw_enable_ips(intel_crtc
);
4929 * Gen2 reports pipe underruns whenever all planes are disabled.
4930 * So don't enable underrun reporting before at least some planes
4932 * FIXME: Need to fix the logic to work when we turn off all planes
4933 * but leave the pipe running.
4935 if (IS_GEN2(dev_priv
))
4936 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
4938 /* Underruns don't always raise interrupts, so check manually. */
4939 intel_check_cpu_fifo_underruns(dev_priv
);
4940 intel_check_pch_fifo_underruns(dev_priv
);
4943 /* FIXME move all this to pre_plane_update() with proper state tracking */
4945 intel_pre_disable_primary(struct drm_crtc
*crtc
)
4947 struct drm_device
*dev
= crtc
->dev
;
4948 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4949 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4950 int pipe
= intel_crtc
->pipe
;
4953 * Gen2 reports pipe underruns whenever all planes are disabled.
4954 * So diasble underrun reporting before all the planes get disabled.
4955 * FIXME: Need to fix the logic to work when we turn off all planes
4956 * but leave the pipe running.
4958 if (IS_GEN2(dev_priv
))
4959 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, false);
4962 * FIXME IPS should be fine as long as one plane is
4963 * enabled, but in practice it seems to have problems
4964 * when going from primary only to sprite only and vice
4967 hsw_disable_ips(intel_crtc
);
4970 /* FIXME get rid of this and use pre_plane_update */
4972 intel_pre_disable_primary_noatomic(struct drm_crtc
*crtc
)
4974 struct drm_device
*dev
= crtc
->dev
;
4975 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4976 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4977 int pipe
= intel_crtc
->pipe
;
4979 intel_pre_disable_primary(crtc
);
4982 * Vblank time updates from the shadow to live plane control register
4983 * are blocked if the memory self-refresh mode is active at that
4984 * moment. So to make sure the plane gets truly disabled, disable
4985 * first the self-refresh mode. The self-refresh enable bit in turn
4986 * will be checked/applied by the HW only at the next frame start
4987 * event which is after the vblank start event, so we need to have a
4988 * wait-for-vblank between disabling the plane and the pipe.
4990 if (HAS_GMCH_DISPLAY(dev_priv
) &&
4991 intel_set_memory_cxsr(dev_priv
, false))
4992 intel_wait_for_vblank(dev_priv
, pipe
);
4995 static void intel_post_plane_update(struct intel_crtc_state
*old_crtc_state
)
4997 struct intel_crtc
*crtc
= to_intel_crtc(old_crtc_state
->base
.crtc
);
4998 struct drm_atomic_state
*old_state
= old_crtc_state
->base
.state
;
4999 struct intel_crtc_state
*pipe_config
=
5000 intel_atomic_get_new_crtc_state(to_intel_atomic_state(old_state
),
5002 struct drm_plane
*primary
= crtc
->base
.primary
;
5003 struct drm_plane_state
*old_pri_state
=
5004 drm_atomic_get_existing_plane_state(old_state
, primary
);
5006 intel_frontbuffer_flip(to_i915(crtc
->base
.dev
), pipe_config
->fb_bits
);
5008 if (pipe_config
->update_wm_post
&& pipe_config
->base
.active
)
5009 intel_update_watermarks(crtc
);
5011 if (old_pri_state
) {
5012 struct intel_plane_state
*primary_state
=
5013 intel_atomic_get_new_plane_state(to_intel_atomic_state(old_state
),
5014 to_intel_plane(primary
));
5015 struct intel_plane_state
*old_primary_state
=
5016 to_intel_plane_state(old_pri_state
);
5018 intel_fbc_post_update(crtc
);
5020 if (primary_state
->base
.visible
&&
5021 (needs_modeset(&pipe_config
->base
) ||
5022 !old_primary_state
->base
.visible
))
5023 intel_post_enable_primary(&crtc
->base
);
5027 static void intel_pre_plane_update(struct intel_crtc_state
*old_crtc_state
,
5028 struct intel_crtc_state
*pipe_config
)
5030 struct intel_crtc
*crtc
= to_intel_crtc(old_crtc_state
->base
.crtc
);
5031 struct drm_device
*dev
= crtc
->base
.dev
;
5032 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5033 struct drm_atomic_state
*old_state
= old_crtc_state
->base
.state
;
5034 struct drm_plane
*primary
= crtc
->base
.primary
;
5035 struct drm_plane_state
*old_pri_state
=
5036 drm_atomic_get_existing_plane_state(old_state
, primary
);
5037 bool modeset
= needs_modeset(&pipe_config
->base
);
5038 struct intel_atomic_state
*old_intel_state
=
5039 to_intel_atomic_state(old_state
);
5041 if (old_pri_state
) {
5042 struct intel_plane_state
*primary_state
=
5043 intel_atomic_get_new_plane_state(old_intel_state
,
5044 to_intel_plane(primary
));
5045 struct intel_plane_state
*old_primary_state
=
5046 to_intel_plane_state(old_pri_state
);
5048 intel_fbc_pre_update(crtc
, pipe_config
, primary_state
);
5050 if (old_primary_state
->base
.visible
&&
5051 (modeset
|| !primary_state
->base
.visible
))
5052 intel_pre_disable_primary(&crtc
->base
);
5056 * Vblank time updates from the shadow to live plane control register
5057 * are blocked if the memory self-refresh mode is active at that
5058 * moment. So to make sure the plane gets truly disabled, disable
5059 * first the self-refresh mode. The self-refresh enable bit in turn
5060 * will be checked/applied by the HW only at the next frame start
5061 * event which is after the vblank start event, so we need to have a
5062 * wait-for-vblank between disabling the plane and the pipe.
5064 if (HAS_GMCH_DISPLAY(dev_priv
) && old_crtc_state
->base
.active
&&
5065 pipe_config
->disable_cxsr
&& intel_set_memory_cxsr(dev_priv
, false))
5066 intel_wait_for_vblank(dev_priv
, crtc
->pipe
);
5069 * IVB workaround: must disable low power watermarks for at least
5070 * one frame before enabling scaling. LP watermarks can be re-enabled
5071 * when scaling is disabled.
5073 * WaCxSRDisabledForSpriteScaling:ivb
5075 if (pipe_config
->disable_lp_wm
&& ilk_disable_lp_wm(dev
))
5076 intel_wait_for_vblank(dev_priv
, crtc
->pipe
);
5079 * If we're doing a modeset, we're done. No need to do any pre-vblank
5080 * watermark programming here.
5082 if (needs_modeset(&pipe_config
->base
))
5086 * For platforms that support atomic watermarks, program the
5087 * 'intermediate' watermarks immediately. On pre-gen9 platforms, these
5088 * will be the intermediate values that are safe for both pre- and
5089 * post- vblank; when vblank happens, the 'active' values will be set
5090 * to the final 'target' values and we'll do this again to get the
5091 * optimal watermarks. For gen9+ platforms, the values we program here
5092 * will be the final target values which will get automatically latched
5093 * at vblank time; no further programming will be necessary.
5095 * If a platform hasn't been transitioned to atomic watermarks yet,
5096 * we'll continue to update watermarks the old way, if flags tell
5099 if (dev_priv
->display
.initial_watermarks
!= NULL
)
5100 dev_priv
->display
.initial_watermarks(old_intel_state
,
5102 else if (pipe_config
->update_wm_pre
)
5103 intel_update_watermarks(crtc
);
5106 static void intel_crtc_disable_planes(struct drm_crtc
*crtc
, unsigned plane_mask
)
5108 struct drm_device
*dev
= crtc
->dev
;
5109 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5110 struct drm_plane
*p
;
5111 int pipe
= intel_crtc
->pipe
;
5113 intel_crtc_dpms_overlay_disable(intel_crtc
);
5115 drm_for_each_plane_mask(p
, dev
, plane_mask
)
5116 to_intel_plane(p
)->disable_plane(to_intel_plane(p
), intel_crtc
);
5119 * FIXME: Once we grow proper nuclear flip support out of this we need
5120 * to compute the mask of flip planes precisely. For the time being
5121 * consider this a flip to a NULL plane.
5123 intel_frontbuffer_flip(to_i915(dev
), INTEL_FRONTBUFFER_ALL_MASK(pipe
));
5126 static void intel_encoders_pre_pll_enable(struct drm_crtc
*crtc
,
5127 struct intel_crtc_state
*crtc_state
,
5128 struct drm_atomic_state
*old_state
)
5130 struct drm_connector_state
*conn_state
;
5131 struct drm_connector
*conn
;
5134 for_each_new_connector_in_state(old_state
, conn
, conn_state
, i
) {
5135 struct intel_encoder
*encoder
=
5136 to_intel_encoder(conn_state
->best_encoder
);
5138 if (conn_state
->crtc
!= crtc
)
5141 if (encoder
->pre_pll_enable
)
5142 encoder
->pre_pll_enable(encoder
, crtc_state
, conn_state
);
5146 static void intel_encoders_pre_enable(struct drm_crtc
*crtc
,
5147 struct intel_crtc_state
*crtc_state
,
5148 struct drm_atomic_state
*old_state
)
5150 struct drm_connector_state
*conn_state
;
5151 struct drm_connector
*conn
;
5154 for_each_new_connector_in_state(old_state
, conn
, conn_state
, i
) {
5155 struct intel_encoder
*encoder
=
5156 to_intel_encoder(conn_state
->best_encoder
);
5158 if (conn_state
->crtc
!= crtc
)
5161 if (encoder
->pre_enable
)
5162 encoder
->pre_enable(encoder
, crtc_state
, conn_state
);
5166 static void intel_encoders_enable(struct drm_crtc
*crtc
,
5167 struct intel_crtc_state
*crtc_state
,
5168 struct drm_atomic_state
*old_state
)
5170 struct drm_connector_state
*conn_state
;
5171 struct drm_connector
*conn
;
5174 for_each_new_connector_in_state(old_state
, conn
, conn_state
, i
) {
5175 struct intel_encoder
*encoder
=
5176 to_intel_encoder(conn_state
->best_encoder
);
5178 if (conn_state
->crtc
!= crtc
)
5181 encoder
->enable(encoder
, crtc_state
, conn_state
);
5182 intel_opregion_notify_encoder(encoder
, true);
5186 static void intel_encoders_disable(struct drm_crtc
*crtc
,
5187 struct intel_crtc_state
*old_crtc_state
,
5188 struct drm_atomic_state
*old_state
)
5190 struct drm_connector_state
*old_conn_state
;
5191 struct drm_connector
*conn
;
5194 for_each_old_connector_in_state(old_state
, conn
, old_conn_state
, i
) {
5195 struct intel_encoder
*encoder
=
5196 to_intel_encoder(old_conn_state
->best_encoder
);
5198 if (old_conn_state
->crtc
!= crtc
)
5201 intel_opregion_notify_encoder(encoder
, false);
5202 encoder
->disable(encoder
, old_crtc_state
, old_conn_state
);
5206 static void intel_encoders_post_disable(struct drm_crtc
*crtc
,
5207 struct intel_crtc_state
*old_crtc_state
,
5208 struct drm_atomic_state
*old_state
)
5210 struct drm_connector_state
*old_conn_state
;
5211 struct drm_connector
*conn
;
5214 for_each_old_connector_in_state(old_state
, conn
, old_conn_state
, i
) {
5215 struct intel_encoder
*encoder
=
5216 to_intel_encoder(old_conn_state
->best_encoder
);
5218 if (old_conn_state
->crtc
!= crtc
)
5221 if (encoder
->post_disable
)
5222 encoder
->post_disable(encoder
, old_crtc_state
, old_conn_state
);
5226 static void intel_encoders_post_pll_disable(struct drm_crtc
*crtc
,
5227 struct intel_crtc_state
*old_crtc_state
,
5228 struct drm_atomic_state
*old_state
)
5230 struct drm_connector_state
*old_conn_state
;
5231 struct drm_connector
*conn
;
5234 for_each_old_connector_in_state(old_state
, conn
, old_conn_state
, i
) {
5235 struct intel_encoder
*encoder
=
5236 to_intel_encoder(old_conn_state
->best_encoder
);
5238 if (old_conn_state
->crtc
!= crtc
)
5241 if (encoder
->post_pll_disable
)
5242 encoder
->post_pll_disable(encoder
, old_crtc_state
, old_conn_state
);
5246 static void ironlake_crtc_enable(struct intel_crtc_state
*pipe_config
,
5247 struct drm_atomic_state
*old_state
)
5249 struct drm_crtc
*crtc
= pipe_config
->base
.crtc
;
5250 struct drm_device
*dev
= crtc
->dev
;
5251 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5252 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5253 int pipe
= intel_crtc
->pipe
;
5254 struct intel_atomic_state
*old_intel_state
=
5255 to_intel_atomic_state(old_state
);
5257 if (WARN_ON(intel_crtc
->active
))
5261 * Sometimes spurious CPU pipe underruns happen during FDI
5262 * training, at least with VGA+HDMI cloning. Suppress them.
5264 * On ILK we get an occasional spurious CPU pipe underruns
5265 * between eDP port A enable and vdd enable. Also PCH port
5266 * enable seems to result in the occasional CPU pipe underrun.
5268 * Spurious PCH underruns also occur during PCH enabling.
5270 if (intel_crtc
->config
->has_pch_encoder
|| IS_GEN5(dev_priv
))
5271 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, false);
5272 if (intel_crtc
->config
->has_pch_encoder
)
5273 intel_set_pch_fifo_underrun_reporting(dev_priv
, pipe
, false);
5275 if (intel_crtc
->config
->has_pch_encoder
)
5276 intel_prepare_shared_dpll(intel_crtc
);
5278 if (intel_crtc_has_dp_encoder(intel_crtc
->config
))
5279 intel_dp_set_m_n(intel_crtc
, M1_N1
);
5281 intel_set_pipe_timings(intel_crtc
);
5282 intel_set_pipe_src_size(intel_crtc
);
5284 if (intel_crtc
->config
->has_pch_encoder
) {
5285 intel_cpu_transcoder_set_m_n(intel_crtc
,
5286 &intel_crtc
->config
->fdi_m_n
, NULL
);
5289 ironlake_set_pipeconf(crtc
);
5291 intel_crtc
->active
= true;
5293 intel_encoders_pre_enable(crtc
, pipe_config
, old_state
);
5295 if (intel_crtc
->config
->has_pch_encoder
) {
5296 /* Note: FDI PLL enabling _must_ be done before we enable the
5297 * cpu pipes, hence this is separate from all the other fdi/pch
5299 ironlake_fdi_pll_enable(intel_crtc
);
5301 assert_fdi_tx_disabled(dev_priv
, pipe
);
5302 assert_fdi_rx_disabled(dev_priv
, pipe
);
5305 ironlake_pfit_enable(intel_crtc
);
5308 * On ILK+ LUT must be loaded before the pipe is running but with
5311 intel_color_load_luts(&pipe_config
->base
);
5313 if (dev_priv
->display
.initial_watermarks
!= NULL
)
5314 dev_priv
->display
.initial_watermarks(old_intel_state
, intel_crtc
->config
);
5315 intel_enable_pipe(intel_crtc
);
5317 if (intel_crtc
->config
->has_pch_encoder
)
5318 ironlake_pch_enable(pipe_config
);
5320 assert_vblank_disabled(crtc
);
5321 drm_crtc_vblank_on(crtc
);
5323 intel_encoders_enable(crtc
, pipe_config
, old_state
);
5325 if (HAS_PCH_CPT(dev_priv
))
5326 cpt_verify_modeset(dev
, intel_crtc
->pipe
);
5328 /* Must wait for vblank to avoid spurious PCH FIFO underruns */
5329 if (intel_crtc
->config
->has_pch_encoder
)
5330 intel_wait_for_vblank(dev_priv
, pipe
);
5331 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5332 intel_set_pch_fifo_underrun_reporting(dev_priv
, pipe
, true);
5335 /* IPS only exists on ULT machines and is tied to pipe A. */
5336 static bool hsw_crtc_supports_ips(struct intel_crtc
*crtc
)
5338 return HAS_IPS(to_i915(crtc
->base
.dev
)) && crtc
->pipe
== PIPE_A
;
5341 static void glk_pipe_scaler_clock_gating_wa(struct drm_i915_private
*dev_priv
,
5342 enum pipe pipe
, bool apply
)
5344 u32 val
= I915_READ(CLKGATE_DIS_PSL(pipe
));
5345 u32 mask
= DPF_GATING_DIS
| DPF_RAM_GATING_DIS
| DPFR_GATING_DIS
;
5352 I915_WRITE(CLKGATE_DIS_PSL(pipe
), val
);
5355 static void haswell_crtc_enable(struct intel_crtc_state
*pipe_config
,
5356 struct drm_atomic_state
*old_state
)
5358 struct drm_crtc
*crtc
= pipe_config
->base
.crtc
;
5359 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
5360 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5361 int pipe
= intel_crtc
->pipe
, hsw_workaround_pipe
;
5362 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
5363 struct intel_atomic_state
*old_intel_state
=
5364 to_intel_atomic_state(old_state
);
5365 bool psl_clkgate_wa
;
5367 if (WARN_ON(intel_crtc
->active
))
5370 intel_encoders_pre_pll_enable(crtc
, pipe_config
, old_state
);
5372 if (intel_crtc
->config
->shared_dpll
)
5373 intel_enable_shared_dpll(intel_crtc
);
5375 if (intel_crtc_has_dp_encoder(intel_crtc
->config
))
5376 intel_dp_set_m_n(intel_crtc
, M1_N1
);
5378 if (!transcoder_is_dsi(cpu_transcoder
))
5379 intel_set_pipe_timings(intel_crtc
);
5381 intel_set_pipe_src_size(intel_crtc
);
5383 if (cpu_transcoder
!= TRANSCODER_EDP
&&
5384 !transcoder_is_dsi(cpu_transcoder
)) {
5385 I915_WRITE(PIPE_MULT(cpu_transcoder
),
5386 intel_crtc
->config
->pixel_multiplier
- 1);
5389 if (intel_crtc
->config
->has_pch_encoder
) {
5390 intel_cpu_transcoder_set_m_n(intel_crtc
,
5391 &intel_crtc
->config
->fdi_m_n
, NULL
);
5394 if (!transcoder_is_dsi(cpu_transcoder
))
5395 haswell_set_pipeconf(crtc
);
5397 haswell_set_pipemisc(crtc
);
5399 intel_color_set_csc(&pipe_config
->base
);
5401 intel_crtc
->active
= true;
5403 intel_encoders_pre_enable(crtc
, pipe_config
, old_state
);
5405 if (!transcoder_is_dsi(cpu_transcoder
))
5406 intel_ddi_enable_pipe_clock(pipe_config
);
5408 /* Display WA #1180: WaDisableScalarClockGating: glk, cnl */
5409 psl_clkgate_wa
= (IS_GEMINILAKE(dev_priv
) || IS_CANNONLAKE(dev_priv
)) &&
5410 intel_crtc
->config
->pch_pfit
.enabled
;
5412 glk_pipe_scaler_clock_gating_wa(dev_priv
, pipe
, true);
5414 if (INTEL_GEN(dev_priv
) >= 9)
5415 skylake_pfit_enable(intel_crtc
);
5417 ironlake_pfit_enable(intel_crtc
);
5420 * On ILK+ LUT must be loaded before the pipe is running but with
5423 intel_color_load_luts(&pipe_config
->base
);
5425 intel_ddi_set_pipe_settings(pipe_config
);
5426 if (!transcoder_is_dsi(cpu_transcoder
))
5427 intel_ddi_enable_transcoder_func(pipe_config
);
5429 if (dev_priv
->display
.initial_watermarks
!= NULL
)
5430 dev_priv
->display
.initial_watermarks(old_intel_state
, pipe_config
);
5432 /* XXX: Do the pipe assertions at the right place for BXT DSI. */
5433 if (!transcoder_is_dsi(cpu_transcoder
))
5434 intel_enable_pipe(intel_crtc
);
5436 if (intel_crtc
->config
->has_pch_encoder
)
5437 lpt_pch_enable(pipe_config
);
5439 if (intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_DP_MST
))
5440 intel_ddi_set_vc_payload_alloc(pipe_config
, true);
5442 assert_vblank_disabled(crtc
);
5443 drm_crtc_vblank_on(crtc
);
5445 intel_encoders_enable(crtc
, pipe_config
, old_state
);
5447 if (psl_clkgate_wa
) {
5448 intel_wait_for_vblank(dev_priv
, pipe
);
5449 glk_pipe_scaler_clock_gating_wa(dev_priv
, pipe
, false);
5452 /* If we change the relative order between pipe/planes enabling, we need
5453 * to change the workaround. */
5454 hsw_workaround_pipe
= pipe_config
->hsw_workaround_pipe
;
5455 if (IS_HASWELL(dev_priv
) && hsw_workaround_pipe
!= INVALID_PIPE
) {
5456 intel_wait_for_vblank(dev_priv
, hsw_workaround_pipe
);
5457 intel_wait_for_vblank(dev_priv
, hsw_workaround_pipe
);
5461 static void ironlake_pfit_disable(struct intel_crtc
*crtc
, bool force
)
5463 struct drm_device
*dev
= crtc
->base
.dev
;
5464 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5465 int pipe
= crtc
->pipe
;
5467 /* To avoid upsetting the power well on haswell only disable the pfit if
5468 * it's in use. The hw state code will make sure we get this right. */
5469 if (force
|| crtc
->config
->pch_pfit
.enabled
) {
5470 I915_WRITE(PF_CTL(pipe
), 0);
5471 I915_WRITE(PF_WIN_POS(pipe
), 0);
5472 I915_WRITE(PF_WIN_SZ(pipe
), 0);
5476 static void ironlake_crtc_disable(struct intel_crtc_state
*old_crtc_state
,
5477 struct drm_atomic_state
*old_state
)
5479 struct drm_crtc
*crtc
= old_crtc_state
->base
.crtc
;
5480 struct drm_device
*dev
= crtc
->dev
;
5481 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5482 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5483 int pipe
= intel_crtc
->pipe
;
5486 * Sometimes spurious CPU pipe underruns happen when the
5487 * pipe is already disabled, but FDI RX/TX is still enabled.
5488 * Happens at least with VGA+HDMI cloning. Suppress them.
5490 if (intel_crtc
->config
->has_pch_encoder
) {
5491 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, false);
5492 intel_set_pch_fifo_underrun_reporting(dev_priv
, pipe
, false);
5495 intel_encoders_disable(crtc
, old_crtc_state
, old_state
);
5497 drm_crtc_vblank_off(crtc
);
5498 assert_vblank_disabled(crtc
);
5500 intel_disable_pipe(intel_crtc
);
5502 ironlake_pfit_disable(intel_crtc
, false);
5504 if (intel_crtc
->config
->has_pch_encoder
)
5505 ironlake_fdi_disable(crtc
);
5507 intel_encoders_post_disable(crtc
, old_crtc_state
, old_state
);
5509 if (intel_crtc
->config
->has_pch_encoder
) {
5510 ironlake_disable_pch_transcoder(dev_priv
, pipe
);
5512 if (HAS_PCH_CPT(dev_priv
)) {
5516 /* disable TRANS_DP_CTL */
5517 reg
= TRANS_DP_CTL(pipe
);
5518 temp
= I915_READ(reg
);
5519 temp
&= ~(TRANS_DP_OUTPUT_ENABLE
|
5520 TRANS_DP_PORT_SEL_MASK
);
5521 temp
|= TRANS_DP_PORT_SEL_NONE
;
5522 I915_WRITE(reg
, temp
);
5524 /* disable DPLL_SEL */
5525 temp
= I915_READ(PCH_DPLL_SEL
);
5526 temp
&= ~(TRANS_DPLL_ENABLE(pipe
) | TRANS_DPLLB_SEL(pipe
));
5527 I915_WRITE(PCH_DPLL_SEL
, temp
);
5530 ironlake_fdi_pll_disable(intel_crtc
);
5533 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5534 intel_set_pch_fifo_underrun_reporting(dev_priv
, pipe
, true);
5537 static void haswell_crtc_disable(struct intel_crtc_state
*old_crtc_state
,
5538 struct drm_atomic_state
*old_state
)
5540 struct drm_crtc
*crtc
= old_crtc_state
->base
.crtc
;
5541 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
5542 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5543 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
5545 intel_encoders_disable(crtc
, old_crtc_state
, old_state
);
5547 drm_crtc_vblank_off(crtc
);
5548 assert_vblank_disabled(crtc
);
5550 /* XXX: Do the pipe assertions at the right place for BXT DSI. */
5551 if (!transcoder_is_dsi(cpu_transcoder
))
5552 intel_disable_pipe(intel_crtc
);
5554 if (intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_DP_MST
))
5555 intel_ddi_set_vc_payload_alloc(intel_crtc
->config
, false);
5557 if (!transcoder_is_dsi(cpu_transcoder
))
5558 intel_ddi_disable_transcoder_func(old_crtc_state
);
5560 if (INTEL_GEN(dev_priv
) >= 9)
5561 skylake_scaler_disable(intel_crtc
);
5563 ironlake_pfit_disable(intel_crtc
, false);
5565 if (!transcoder_is_dsi(cpu_transcoder
))
5566 intel_ddi_disable_pipe_clock(intel_crtc
->config
);
5568 intel_encoders_post_disable(crtc
, old_crtc_state
, old_state
);
5571 static void i9xx_pfit_enable(struct intel_crtc
*crtc
)
5573 struct drm_device
*dev
= crtc
->base
.dev
;
5574 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5575 struct intel_crtc_state
*pipe_config
= crtc
->config
;
5577 if (!pipe_config
->gmch_pfit
.control
)
5581 * The panel fitter should only be adjusted whilst the pipe is disabled,
5582 * according to register description and PRM.
5584 WARN_ON(I915_READ(PFIT_CONTROL
) & PFIT_ENABLE
);
5585 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
5587 I915_WRITE(PFIT_PGM_RATIOS
, pipe_config
->gmch_pfit
.pgm_ratios
);
5588 I915_WRITE(PFIT_CONTROL
, pipe_config
->gmch_pfit
.control
);
5590 /* Border color in case we don't scale up to the full screen. Black by
5591 * default, change to something else for debugging. */
5592 I915_WRITE(BCLRPAT(crtc
->pipe
), 0);
5595 enum intel_display_power_domain
intel_port_to_power_domain(enum port port
)
5599 return POWER_DOMAIN_PORT_DDI_A_LANES
;
5601 return POWER_DOMAIN_PORT_DDI_B_LANES
;
5603 return POWER_DOMAIN_PORT_DDI_C_LANES
;
5605 return POWER_DOMAIN_PORT_DDI_D_LANES
;
5607 return POWER_DOMAIN_PORT_DDI_E_LANES
;
5610 return POWER_DOMAIN_PORT_OTHER
;
5614 static u64
get_crtc_power_domains(struct drm_crtc
*crtc
,
5615 struct intel_crtc_state
*crtc_state
)
5617 struct drm_device
*dev
= crtc
->dev
;
5618 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5619 struct drm_encoder
*encoder
;
5620 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5621 enum pipe pipe
= intel_crtc
->pipe
;
5623 enum transcoder transcoder
= crtc_state
->cpu_transcoder
;
5625 if (!crtc_state
->base
.active
)
5628 mask
= BIT(POWER_DOMAIN_PIPE(pipe
));
5629 mask
|= BIT(POWER_DOMAIN_TRANSCODER(transcoder
));
5630 if (crtc_state
->pch_pfit
.enabled
||
5631 crtc_state
->pch_pfit
.force_thru
)
5632 mask
|= BIT_ULL(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe
));
5634 drm_for_each_encoder_mask(encoder
, dev
, crtc_state
->base
.encoder_mask
) {
5635 struct intel_encoder
*intel_encoder
= to_intel_encoder(encoder
);
5637 mask
|= BIT_ULL(intel_encoder
->power_domain
);
5640 if (HAS_DDI(dev_priv
) && crtc_state
->has_audio
)
5641 mask
|= BIT(POWER_DOMAIN_AUDIO
);
5643 if (crtc_state
->shared_dpll
)
5644 mask
|= BIT_ULL(POWER_DOMAIN_PLLS
);
5650 modeset_get_crtc_power_domains(struct drm_crtc
*crtc
,
5651 struct intel_crtc_state
*crtc_state
)
5653 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
5654 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5655 enum intel_display_power_domain domain
;
5656 u64 domains
, new_domains
, old_domains
;
5658 old_domains
= intel_crtc
->enabled_power_domains
;
5659 intel_crtc
->enabled_power_domains
= new_domains
=
5660 get_crtc_power_domains(crtc
, crtc_state
);
5662 domains
= new_domains
& ~old_domains
;
5664 for_each_power_domain(domain
, domains
)
5665 intel_display_power_get(dev_priv
, domain
);
5667 return old_domains
& ~new_domains
;
5670 static void modeset_put_power_domains(struct drm_i915_private
*dev_priv
,
5673 enum intel_display_power_domain domain
;
5675 for_each_power_domain(domain
, domains
)
5676 intel_display_power_put(dev_priv
, domain
);
5679 static void valleyview_crtc_enable(struct intel_crtc_state
*pipe_config
,
5680 struct drm_atomic_state
*old_state
)
5682 struct intel_atomic_state
*old_intel_state
=
5683 to_intel_atomic_state(old_state
);
5684 struct drm_crtc
*crtc
= pipe_config
->base
.crtc
;
5685 struct drm_device
*dev
= crtc
->dev
;
5686 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5687 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5688 int pipe
= intel_crtc
->pipe
;
5690 if (WARN_ON(intel_crtc
->active
))
5693 if (intel_crtc_has_dp_encoder(intel_crtc
->config
))
5694 intel_dp_set_m_n(intel_crtc
, M1_N1
);
5696 intel_set_pipe_timings(intel_crtc
);
5697 intel_set_pipe_src_size(intel_crtc
);
5699 if (IS_CHERRYVIEW(dev_priv
) && pipe
== PIPE_B
) {
5700 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5702 I915_WRITE(CHV_BLEND(pipe
), CHV_BLEND_LEGACY
);
5703 I915_WRITE(CHV_CANVAS(pipe
), 0);
5706 i9xx_set_pipeconf(intel_crtc
);
5708 intel_crtc
->active
= true;
5710 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5712 intel_encoders_pre_pll_enable(crtc
, pipe_config
, old_state
);
5714 if (IS_CHERRYVIEW(dev_priv
)) {
5715 chv_prepare_pll(intel_crtc
, intel_crtc
->config
);
5716 chv_enable_pll(intel_crtc
, intel_crtc
->config
);
5718 vlv_prepare_pll(intel_crtc
, intel_crtc
->config
);
5719 vlv_enable_pll(intel_crtc
, intel_crtc
->config
);
5722 intel_encoders_pre_enable(crtc
, pipe_config
, old_state
);
5724 i9xx_pfit_enable(intel_crtc
);
5726 intel_color_load_luts(&pipe_config
->base
);
5728 dev_priv
->display
.initial_watermarks(old_intel_state
,
5730 intel_enable_pipe(intel_crtc
);
5732 assert_vblank_disabled(crtc
);
5733 drm_crtc_vblank_on(crtc
);
5735 intel_encoders_enable(crtc
, pipe_config
, old_state
);
5738 static void i9xx_set_pll_dividers(struct intel_crtc
*crtc
)
5740 struct drm_device
*dev
= crtc
->base
.dev
;
5741 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5743 I915_WRITE(FP0(crtc
->pipe
), crtc
->config
->dpll_hw_state
.fp0
);
5744 I915_WRITE(FP1(crtc
->pipe
), crtc
->config
->dpll_hw_state
.fp1
);
5747 static void i9xx_crtc_enable(struct intel_crtc_state
*pipe_config
,
5748 struct drm_atomic_state
*old_state
)
5750 struct intel_atomic_state
*old_intel_state
=
5751 to_intel_atomic_state(old_state
);
5752 struct drm_crtc
*crtc
= pipe_config
->base
.crtc
;
5753 struct drm_device
*dev
= crtc
->dev
;
5754 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5755 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5756 enum pipe pipe
= intel_crtc
->pipe
;
5758 if (WARN_ON(intel_crtc
->active
))
5761 i9xx_set_pll_dividers(intel_crtc
);
5763 if (intel_crtc_has_dp_encoder(intel_crtc
->config
))
5764 intel_dp_set_m_n(intel_crtc
, M1_N1
);
5766 intel_set_pipe_timings(intel_crtc
);
5767 intel_set_pipe_src_size(intel_crtc
);
5769 i9xx_set_pipeconf(intel_crtc
);
5771 intel_crtc
->active
= true;
5773 if (!IS_GEN2(dev_priv
))
5774 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5776 intel_encoders_pre_enable(crtc
, pipe_config
, old_state
);
5778 i9xx_enable_pll(intel_crtc
, pipe_config
);
5780 i9xx_pfit_enable(intel_crtc
);
5782 intel_color_load_luts(&pipe_config
->base
);
5784 if (dev_priv
->display
.initial_watermarks
!= NULL
)
5785 dev_priv
->display
.initial_watermarks(old_intel_state
,
5786 intel_crtc
->config
);
5788 intel_update_watermarks(intel_crtc
);
5789 intel_enable_pipe(intel_crtc
);
5791 assert_vblank_disabled(crtc
);
5792 drm_crtc_vblank_on(crtc
);
5794 intel_encoders_enable(crtc
, pipe_config
, old_state
);
5797 static void i9xx_pfit_disable(struct intel_crtc
*crtc
)
5799 struct drm_device
*dev
= crtc
->base
.dev
;
5800 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5802 if (!crtc
->config
->gmch_pfit
.control
)
5805 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
5807 DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n",
5808 I915_READ(PFIT_CONTROL
));
5809 I915_WRITE(PFIT_CONTROL
, 0);
5812 static void i9xx_crtc_disable(struct intel_crtc_state
*old_crtc_state
,
5813 struct drm_atomic_state
*old_state
)
5815 struct drm_crtc
*crtc
= old_crtc_state
->base
.crtc
;
5816 struct drm_device
*dev
= crtc
->dev
;
5817 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5818 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5819 int pipe
= intel_crtc
->pipe
;
5822 * On gen2 planes are double buffered but the pipe isn't, so we must
5823 * wait for planes to fully turn off before disabling the pipe.
5825 if (IS_GEN2(dev_priv
))
5826 intel_wait_for_vblank(dev_priv
, pipe
);
5828 intel_encoders_disable(crtc
, old_crtc_state
, old_state
);
5830 drm_crtc_vblank_off(crtc
);
5831 assert_vblank_disabled(crtc
);
5833 intel_disable_pipe(intel_crtc
);
5835 i9xx_pfit_disable(intel_crtc
);
5837 intel_encoders_post_disable(crtc
, old_crtc_state
, old_state
);
5839 if (!intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_DSI
)) {
5840 if (IS_CHERRYVIEW(dev_priv
))
5841 chv_disable_pll(dev_priv
, pipe
);
5842 else if (IS_VALLEYVIEW(dev_priv
))
5843 vlv_disable_pll(dev_priv
, pipe
);
5845 i9xx_disable_pll(intel_crtc
);
5848 intel_encoders_post_pll_disable(crtc
, old_crtc_state
, old_state
);
5850 if (!IS_GEN2(dev_priv
))
5851 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, false);
5853 if (!dev_priv
->display
.initial_watermarks
)
5854 intel_update_watermarks(intel_crtc
);
5856 /* clock the pipe down to 640x480@60 to potentially save power */
5857 if (IS_I830(dev_priv
))
5858 i830_enable_pipe(dev_priv
, pipe
);
5861 static void intel_crtc_disable_noatomic(struct drm_crtc
*crtc
,
5862 struct drm_modeset_acquire_ctx
*ctx
)
5864 struct intel_encoder
*encoder
;
5865 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5866 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
5867 enum intel_display_power_domain domain
;
5868 struct intel_plane
*plane
;
5870 struct drm_atomic_state
*state
;
5871 struct intel_crtc_state
*crtc_state
;
5874 if (!intel_crtc
->active
)
5877 for_each_intel_plane_on_crtc(&dev_priv
->drm
, intel_crtc
, plane
) {
5878 const struct intel_plane_state
*plane_state
=
5879 to_intel_plane_state(plane
->base
.state
);
5881 if (plane_state
->base
.visible
)
5882 intel_plane_disable_noatomic(intel_crtc
, plane
);
5885 state
= drm_atomic_state_alloc(crtc
->dev
);
5887 DRM_DEBUG_KMS("failed to disable [CRTC:%d:%s], out of memory",
5888 crtc
->base
.id
, crtc
->name
);
5892 state
->acquire_ctx
= ctx
;
5894 /* Everything's already locked, -EDEADLK can't happen. */
5895 crtc_state
= intel_atomic_get_crtc_state(state
, intel_crtc
);
5896 ret
= drm_atomic_add_affected_connectors(state
, crtc
);
5898 WARN_ON(IS_ERR(crtc_state
) || ret
);
5900 dev_priv
->display
.crtc_disable(crtc_state
, state
);
5902 drm_atomic_state_put(state
);
5904 DRM_DEBUG_KMS("[CRTC:%d:%s] hw state adjusted, was enabled, now disabled\n",
5905 crtc
->base
.id
, crtc
->name
);
5907 WARN_ON(drm_atomic_set_mode_for_crtc(crtc
->state
, NULL
) < 0);
5908 crtc
->state
->active
= false;
5909 intel_crtc
->active
= false;
5910 crtc
->enabled
= false;
5911 crtc
->state
->connector_mask
= 0;
5912 crtc
->state
->encoder_mask
= 0;
5914 for_each_encoder_on_crtc(crtc
->dev
, crtc
, encoder
)
5915 encoder
->base
.crtc
= NULL
;
5917 intel_fbc_disable(intel_crtc
);
5918 intel_update_watermarks(intel_crtc
);
5919 intel_disable_shared_dpll(intel_crtc
);
5921 domains
= intel_crtc
->enabled_power_domains
;
5922 for_each_power_domain(domain
, domains
)
5923 intel_display_power_put(dev_priv
, domain
);
5924 intel_crtc
->enabled_power_domains
= 0;
5926 dev_priv
->active_crtcs
&= ~(1 << intel_crtc
->pipe
);
5927 dev_priv
->min_cdclk
[intel_crtc
->pipe
] = 0;
5931 * turn all crtc's off, but do not adjust state
5932 * This has to be paired with a call to intel_modeset_setup_hw_state.
5934 int intel_display_suspend(struct drm_device
*dev
)
5936 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5937 struct drm_atomic_state
*state
;
5940 state
= drm_atomic_helper_suspend(dev
);
5941 ret
= PTR_ERR_OR_ZERO(state
);
5943 DRM_ERROR("Suspending crtc's failed with %i\n", ret
);
5945 dev_priv
->modeset_restore_state
= state
;
5949 void intel_encoder_destroy(struct drm_encoder
*encoder
)
5951 struct intel_encoder
*intel_encoder
= to_intel_encoder(encoder
);
5953 drm_encoder_cleanup(encoder
);
5954 kfree(intel_encoder
);
5957 /* Cross check the actual hw state with our own modeset state tracking (and it's
5958 * internal consistency). */
5959 static void intel_connector_verify_state(struct drm_crtc_state
*crtc_state
,
5960 struct drm_connector_state
*conn_state
)
5962 struct intel_connector
*connector
= to_intel_connector(conn_state
->connector
);
5964 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
5965 connector
->base
.base
.id
,
5966 connector
->base
.name
);
5968 if (connector
->get_hw_state(connector
)) {
5969 struct intel_encoder
*encoder
= connector
->encoder
;
5971 I915_STATE_WARN(!crtc_state
,
5972 "connector enabled without attached crtc\n");
5977 I915_STATE_WARN(!crtc_state
->active
,
5978 "connector is active, but attached crtc isn't\n");
5980 if (!encoder
|| encoder
->type
== INTEL_OUTPUT_DP_MST
)
5983 I915_STATE_WARN(conn_state
->best_encoder
!= &encoder
->base
,
5984 "atomic encoder doesn't match attached encoder\n");
5986 I915_STATE_WARN(conn_state
->crtc
!= encoder
->base
.crtc
,
5987 "attached encoder crtc differs from connector crtc\n");
5989 I915_STATE_WARN(crtc_state
&& crtc_state
->active
,
5990 "attached crtc is active, but connector isn't\n");
5991 I915_STATE_WARN(!crtc_state
&& conn_state
->best_encoder
,
5992 "best encoder set without crtc!\n");
5996 int intel_connector_init(struct intel_connector
*connector
)
5998 struct intel_digital_connector_state
*conn_state
;
6001 * Allocate enough memory to hold intel_digital_connector_state,
6002 * This might be a few bytes too many, but for connectors that don't
6003 * need it we'll free the state and allocate a smaller one on the first
6004 * succesful commit anyway.
6006 conn_state
= kzalloc(sizeof(*conn_state
), GFP_KERNEL
);
6010 __drm_atomic_helper_connector_reset(&connector
->base
,
6016 struct intel_connector
*intel_connector_alloc(void)
6018 struct intel_connector
*connector
;
6020 connector
= kzalloc(sizeof *connector
, GFP_KERNEL
);
6024 if (intel_connector_init(connector
) < 0) {
6033 * Free the bits allocated by intel_connector_alloc.
6034 * This should only be used after intel_connector_alloc has returned
6035 * successfully, and before drm_connector_init returns successfully.
6036 * Otherwise the destroy callbacks for the connector and the state should
6037 * take care of proper cleanup/free
6039 void intel_connector_free(struct intel_connector
*connector
)
6041 kfree(to_intel_digital_connector_state(connector
->base
.state
));
6045 /* Simple connector->get_hw_state implementation for encoders that support only
6046 * one connector and no cloning and hence the encoder state determines the state
6047 * of the connector. */
6048 bool intel_connector_get_hw_state(struct intel_connector
*connector
)
6051 struct intel_encoder
*encoder
= connector
->encoder
;
6053 return encoder
->get_hw_state(encoder
, &pipe
);
6056 static int pipe_required_fdi_lanes(struct intel_crtc_state
*crtc_state
)
6058 if (crtc_state
->base
.enable
&& crtc_state
->has_pch_encoder
)
6059 return crtc_state
->fdi_lanes
;
6064 static int ironlake_check_fdi_lanes(struct drm_device
*dev
, enum pipe pipe
,
6065 struct intel_crtc_state
*pipe_config
)
6067 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6068 struct drm_atomic_state
*state
= pipe_config
->base
.state
;
6069 struct intel_crtc
*other_crtc
;
6070 struct intel_crtc_state
*other_crtc_state
;
6072 DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n",
6073 pipe_name(pipe
), pipe_config
->fdi_lanes
);
6074 if (pipe_config
->fdi_lanes
> 4) {
6075 DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n",
6076 pipe_name(pipe
), pipe_config
->fdi_lanes
);
6080 if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
)) {
6081 if (pipe_config
->fdi_lanes
> 2) {
6082 DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n",
6083 pipe_config
->fdi_lanes
);
6090 if (INTEL_INFO(dev_priv
)->num_pipes
== 2)
6093 /* Ivybridge 3 pipe is really complicated */
6098 if (pipe_config
->fdi_lanes
<= 2)
6101 other_crtc
= intel_get_crtc_for_pipe(dev_priv
, PIPE_C
);
6103 intel_atomic_get_crtc_state(state
, other_crtc
);
6104 if (IS_ERR(other_crtc_state
))
6105 return PTR_ERR(other_crtc_state
);
6107 if (pipe_required_fdi_lanes(other_crtc_state
) > 0) {
6108 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
6109 pipe_name(pipe
), pipe_config
->fdi_lanes
);
6114 if (pipe_config
->fdi_lanes
> 2) {
6115 DRM_DEBUG_KMS("only 2 lanes on pipe %c: required %i lanes\n",
6116 pipe_name(pipe
), pipe_config
->fdi_lanes
);
6120 other_crtc
= intel_get_crtc_for_pipe(dev_priv
, PIPE_B
);
6122 intel_atomic_get_crtc_state(state
, other_crtc
);
6123 if (IS_ERR(other_crtc_state
))
6124 return PTR_ERR(other_crtc_state
);
6126 if (pipe_required_fdi_lanes(other_crtc_state
) > 2) {
6127 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
6137 static int ironlake_fdi_compute_config(struct intel_crtc
*intel_crtc
,
6138 struct intel_crtc_state
*pipe_config
)
6140 struct drm_device
*dev
= intel_crtc
->base
.dev
;
6141 const struct drm_display_mode
*adjusted_mode
= &pipe_config
->base
.adjusted_mode
;
6142 int lane
, link_bw
, fdi_dotclock
, ret
;
6143 bool needs_recompute
= false;
6146 /* FDI is a binary signal running at ~2.7GHz, encoding
6147 * each output octet as 10 bits. The actual frequency
6148 * is stored as a divider into a 100MHz clock, and the
6149 * mode pixel clock is stored in units of 1KHz.
6150 * Hence the bw of each lane in terms of the mode signal
6153 link_bw
= intel_fdi_link_freq(to_i915(dev
), pipe_config
);
6155 fdi_dotclock
= adjusted_mode
->crtc_clock
;
6157 lane
= ironlake_get_lanes_required(fdi_dotclock
, link_bw
,
6158 pipe_config
->pipe_bpp
);
6160 pipe_config
->fdi_lanes
= lane
;
6162 intel_link_compute_m_n(pipe_config
->pipe_bpp
, lane
, fdi_dotclock
,
6163 link_bw
, &pipe_config
->fdi_m_n
, false);
6165 ret
= ironlake_check_fdi_lanes(dev
, intel_crtc
->pipe
, pipe_config
);
6166 if (ret
== -EINVAL
&& pipe_config
->pipe_bpp
> 6*3) {
6167 pipe_config
->pipe_bpp
-= 2*3;
6168 DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n",
6169 pipe_config
->pipe_bpp
);
6170 needs_recompute
= true;
6171 pipe_config
->bw_constrained
= true;
6176 if (needs_recompute
)
6182 static bool pipe_config_supports_ips(struct drm_i915_private
*dev_priv
,
6183 struct intel_crtc_state
*pipe_config
)
6185 if (pipe_config
->ips_force_disable
)
6188 if (pipe_config
->pipe_bpp
> 24)
6191 /* HSW can handle pixel rate up to cdclk? */
6192 if (IS_HASWELL(dev_priv
))
6196 * We compare against max which means we must take
6197 * the increased cdclk requirement into account when
6198 * calculating the new cdclk.
6200 * Should measure whether using a lower cdclk w/o IPS
6202 return pipe_config
->pixel_rate
<=
6203 dev_priv
->max_cdclk_freq
* 95 / 100;
6206 static void hsw_compute_ips_config(struct intel_crtc
*crtc
,
6207 struct intel_crtc_state
*pipe_config
)
6209 struct drm_device
*dev
= crtc
->base
.dev
;
6210 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6212 pipe_config
->ips_enabled
= i915_modparams
.enable_ips
&&
6213 hsw_crtc_supports_ips(crtc
) &&
6214 pipe_config_supports_ips(dev_priv
, pipe_config
);
6217 static bool intel_crtc_supports_double_wide(const struct intel_crtc
*crtc
)
6219 const struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
6221 /* GDG double wide on either pipe, otherwise pipe A only */
6222 return INTEL_INFO(dev_priv
)->gen
< 4 &&
6223 (crtc
->pipe
== PIPE_A
|| IS_I915G(dev_priv
));
6226 static uint32_t ilk_pipe_pixel_rate(const struct intel_crtc_state
*pipe_config
)
6228 uint32_t pixel_rate
;
6230 pixel_rate
= pipe_config
->base
.adjusted_mode
.crtc_clock
;
6233 * We only use IF-ID interlacing. If we ever use
6234 * PF-ID we'll need to adjust the pixel_rate here.
6237 if (pipe_config
->pch_pfit
.enabled
) {
6238 uint64_t pipe_w
, pipe_h
, pfit_w
, pfit_h
;
6239 uint32_t pfit_size
= pipe_config
->pch_pfit
.size
;
6241 pipe_w
= pipe_config
->pipe_src_w
;
6242 pipe_h
= pipe_config
->pipe_src_h
;
6244 pfit_w
= (pfit_size
>> 16) & 0xFFFF;
6245 pfit_h
= pfit_size
& 0xFFFF;
6246 if (pipe_w
< pfit_w
)
6248 if (pipe_h
< pfit_h
)
6251 if (WARN_ON(!pfit_w
|| !pfit_h
))
6254 pixel_rate
= div_u64((uint64_t) pixel_rate
* pipe_w
* pipe_h
,
6261 static void intel_crtc_compute_pixel_rate(struct intel_crtc_state
*crtc_state
)
6263 struct drm_i915_private
*dev_priv
= to_i915(crtc_state
->base
.crtc
->dev
);
6265 if (HAS_GMCH_DISPLAY(dev_priv
))
6266 /* FIXME calculate proper pipe pixel rate for GMCH pfit */
6267 crtc_state
->pixel_rate
=
6268 crtc_state
->base
.adjusted_mode
.crtc_clock
;
6270 crtc_state
->pixel_rate
=
6271 ilk_pipe_pixel_rate(crtc_state
);
6274 static int intel_crtc_compute_config(struct intel_crtc
*crtc
,
6275 struct intel_crtc_state
*pipe_config
)
6277 struct drm_device
*dev
= crtc
->base
.dev
;
6278 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6279 const struct drm_display_mode
*adjusted_mode
= &pipe_config
->base
.adjusted_mode
;
6280 int clock_limit
= dev_priv
->max_dotclk_freq
;
6282 if (INTEL_GEN(dev_priv
) < 4) {
6283 clock_limit
= dev_priv
->max_cdclk_freq
* 9 / 10;
6286 * Enable double wide mode when the dot clock
6287 * is > 90% of the (display) core speed.
6289 if (intel_crtc_supports_double_wide(crtc
) &&
6290 adjusted_mode
->crtc_clock
> clock_limit
) {
6291 clock_limit
= dev_priv
->max_dotclk_freq
;
6292 pipe_config
->double_wide
= true;
6296 if (adjusted_mode
->crtc_clock
> clock_limit
) {
6297 DRM_DEBUG_KMS("requested pixel clock (%d kHz) too high (max: %d kHz, double wide: %s)\n",
6298 adjusted_mode
->crtc_clock
, clock_limit
,
6299 yesno(pipe_config
->double_wide
));
6303 if (pipe_config
->ycbcr420
&& pipe_config
->base
.ctm
) {
6305 * There is only one pipe CSC unit per pipe, and we need that
6306 * for output conversion from RGB->YCBCR. So if CTM is already
6307 * applied we can't support YCBCR420 output.
6309 DRM_DEBUG_KMS("YCBCR420 and CTM together are not possible\n");
6314 * Pipe horizontal size must be even in:
6316 * - LVDS dual channel mode
6317 * - Double wide pipe
6319 if ((intel_crtc_has_type(pipe_config
, INTEL_OUTPUT_LVDS
) &&
6320 intel_is_dual_link_lvds(dev
)) || pipe_config
->double_wide
)
6321 pipe_config
->pipe_src_w
&= ~1;
6323 /* Cantiga+ cannot handle modes with a hsync front porch of 0.
6324 * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw.
6326 if ((INTEL_GEN(dev_priv
) > 4 || IS_G4X(dev_priv
)) &&
6327 adjusted_mode
->crtc_hsync_start
== adjusted_mode
->crtc_hdisplay
)
6330 intel_crtc_compute_pixel_rate(pipe_config
);
6332 if (HAS_IPS(dev_priv
))
6333 hsw_compute_ips_config(crtc
, pipe_config
);
6335 if (pipe_config
->has_pch_encoder
)
6336 return ironlake_fdi_compute_config(crtc
, pipe_config
);
6342 intel_reduce_m_n_ratio(uint32_t *num
, uint32_t *den
)
6344 while (*num
> DATA_LINK_M_N_MASK
||
6345 *den
> DATA_LINK_M_N_MASK
) {
6351 static void compute_m_n(unsigned int m
, unsigned int n
,
6352 uint32_t *ret_m
, uint32_t *ret_n
,
6356 * Reduce M/N as much as possible without loss in precision. Several DP
6357 * dongles in particular seem to be fussy about too large *link* M/N
6358 * values. The passed in values are more likely to have the least
6359 * significant bits zero than M after rounding below, so do this first.
6362 while ((m
& 1) == 0 && (n
& 1) == 0) {
6368 *ret_n
= min_t(unsigned int, roundup_pow_of_two(n
), DATA_LINK_N_MAX
);
6369 *ret_m
= div_u64((uint64_t) m
* *ret_n
, n
);
6370 intel_reduce_m_n_ratio(ret_m
, ret_n
);
6374 intel_link_compute_m_n(int bits_per_pixel
, int nlanes
,
6375 int pixel_clock
, int link_clock
,
6376 struct intel_link_m_n
*m_n
,
6381 compute_m_n(bits_per_pixel
* pixel_clock
,
6382 link_clock
* nlanes
* 8,
6383 &m_n
->gmch_m
, &m_n
->gmch_n
,
6386 compute_m_n(pixel_clock
, link_clock
,
6387 &m_n
->link_m
, &m_n
->link_n
,
6391 static inline bool intel_panel_use_ssc(struct drm_i915_private
*dev_priv
)
6393 if (i915_modparams
.panel_use_ssc
>= 0)
6394 return i915_modparams
.panel_use_ssc
!= 0;
6395 return dev_priv
->vbt
.lvds_use_ssc
6396 && !(dev_priv
->quirks
& QUIRK_LVDS_SSC_DISABLE
);
6399 static uint32_t pnv_dpll_compute_fp(struct dpll
*dpll
)
6401 return (1 << dpll
->n
) << 16 | dpll
->m2
;
6404 static uint32_t i9xx_dpll_compute_fp(struct dpll
*dpll
)
6406 return dpll
->n
<< 16 | dpll
->m1
<< 8 | dpll
->m2
;
6409 static void i9xx_update_pll_dividers(struct intel_crtc
*crtc
,
6410 struct intel_crtc_state
*crtc_state
,
6411 struct dpll
*reduced_clock
)
6413 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
6416 if (IS_PINEVIEW(dev_priv
)) {
6417 fp
= pnv_dpll_compute_fp(&crtc_state
->dpll
);
6419 fp2
= pnv_dpll_compute_fp(reduced_clock
);
6421 fp
= i9xx_dpll_compute_fp(&crtc_state
->dpll
);
6423 fp2
= i9xx_dpll_compute_fp(reduced_clock
);
6426 crtc_state
->dpll_hw_state
.fp0
= fp
;
6428 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
6430 crtc_state
->dpll_hw_state
.fp1
= fp2
;
6432 crtc_state
->dpll_hw_state
.fp1
= fp
;
6436 static void vlv_pllb_recal_opamp(struct drm_i915_private
*dev_priv
, enum pipe
6442 * PLLB opamp always calibrates to max value of 0x3f, force enable it
6443 * and set it to a reasonable value instead.
6445 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW9(1));
6446 reg_val
&= 0xffffff00;
6447 reg_val
|= 0x00000030;
6448 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9(1), reg_val
);
6450 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_REF_DW13
);
6451 reg_val
&= 0x00ffffff;
6452 reg_val
|= 0x8c000000;
6453 vlv_dpio_write(dev_priv
, pipe
, VLV_REF_DW13
, reg_val
);
6455 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW9(1));
6456 reg_val
&= 0xffffff00;
6457 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9(1), reg_val
);
6459 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_REF_DW13
);
6460 reg_val
&= 0x00ffffff;
6461 reg_val
|= 0xb0000000;
6462 vlv_dpio_write(dev_priv
, pipe
, VLV_REF_DW13
, reg_val
);
6465 static void intel_pch_transcoder_set_m_n(struct intel_crtc
*crtc
,
6466 struct intel_link_m_n
*m_n
)
6468 struct drm_device
*dev
= crtc
->base
.dev
;
6469 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6470 int pipe
= crtc
->pipe
;
6472 I915_WRITE(PCH_TRANS_DATA_M1(pipe
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
6473 I915_WRITE(PCH_TRANS_DATA_N1(pipe
), m_n
->gmch_n
);
6474 I915_WRITE(PCH_TRANS_LINK_M1(pipe
), m_n
->link_m
);
6475 I915_WRITE(PCH_TRANS_LINK_N1(pipe
), m_n
->link_n
);
6478 static void intel_cpu_transcoder_set_m_n(struct intel_crtc
*crtc
,
6479 struct intel_link_m_n
*m_n
,
6480 struct intel_link_m_n
*m2_n2
)
6482 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
6483 int pipe
= crtc
->pipe
;
6484 enum transcoder transcoder
= crtc
->config
->cpu_transcoder
;
6486 if (INTEL_GEN(dev_priv
) >= 5) {
6487 I915_WRITE(PIPE_DATA_M1(transcoder
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
6488 I915_WRITE(PIPE_DATA_N1(transcoder
), m_n
->gmch_n
);
6489 I915_WRITE(PIPE_LINK_M1(transcoder
), m_n
->link_m
);
6490 I915_WRITE(PIPE_LINK_N1(transcoder
), m_n
->link_n
);
6491 /* M2_N2 registers to be set only for gen < 8 (M2_N2 available
6492 * for gen < 8) and if DRRS is supported (to make sure the
6493 * registers are not unnecessarily accessed).
6495 if (m2_n2
&& (IS_CHERRYVIEW(dev_priv
) ||
6496 INTEL_GEN(dev_priv
) < 8) && crtc
->config
->has_drrs
) {
6497 I915_WRITE(PIPE_DATA_M2(transcoder
),
6498 TU_SIZE(m2_n2
->tu
) | m2_n2
->gmch_m
);
6499 I915_WRITE(PIPE_DATA_N2(transcoder
), m2_n2
->gmch_n
);
6500 I915_WRITE(PIPE_LINK_M2(transcoder
), m2_n2
->link_m
);
6501 I915_WRITE(PIPE_LINK_N2(transcoder
), m2_n2
->link_n
);
6504 I915_WRITE(PIPE_DATA_M_G4X(pipe
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
6505 I915_WRITE(PIPE_DATA_N_G4X(pipe
), m_n
->gmch_n
);
6506 I915_WRITE(PIPE_LINK_M_G4X(pipe
), m_n
->link_m
);
6507 I915_WRITE(PIPE_LINK_N_G4X(pipe
), m_n
->link_n
);
6511 void intel_dp_set_m_n(struct intel_crtc
*crtc
, enum link_m_n_set m_n
)
6513 struct intel_link_m_n
*dp_m_n
, *dp_m2_n2
= NULL
;
6516 dp_m_n
= &crtc
->config
->dp_m_n
;
6517 dp_m2_n2
= &crtc
->config
->dp_m2_n2
;
6518 } else if (m_n
== M2_N2
) {
6521 * M2_N2 registers are not supported. Hence m2_n2 divider value
6522 * needs to be programmed into M1_N1.
6524 dp_m_n
= &crtc
->config
->dp_m2_n2
;
6526 DRM_ERROR("Unsupported divider value\n");
6530 if (crtc
->config
->has_pch_encoder
)
6531 intel_pch_transcoder_set_m_n(crtc
, &crtc
->config
->dp_m_n
);
6533 intel_cpu_transcoder_set_m_n(crtc
, dp_m_n
, dp_m2_n2
);
6536 static void vlv_compute_dpll(struct intel_crtc
*crtc
,
6537 struct intel_crtc_state
*pipe_config
)
6539 pipe_config
->dpll_hw_state
.dpll
= DPLL_INTEGRATED_REF_CLK_VLV
|
6540 DPLL_REF_CLK_ENABLE_VLV
| DPLL_VGA_MODE_DIS
;
6541 if (crtc
->pipe
!= PIPE_A
)
6542 pipe_config
->dpll_hw_state
.dpll
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
6544 /* DPLL not used with DSI, but still need the rest set up */
6545 if (!intel_crtc_has_type(pipe_config
, INTEL_OUTPUT_DSI
))
6546 pipe_config
->dpll_hw_state
.dpll
|= DPLL_VCO_ENABLE
|
6547 DPLL_EXT_BUFFER_ENABLE_VLV
;
6549 pipe_config
->dpll_hw_state
.dpll_md
=
6550 (pipe_config
->pixel_multiplier
- 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
6553 static void chv_compute_dpll(struct intel_crtc
*crtc
,
6554 struct intel_crtc_state
*pipe_config
)
6556 pipe_config
->dpll_hw_state
.dpll
= DPLL_SSC_REF_CLK_CHV
|
6557 DPLL_REF_CLK_ENABLE_VLV
| DPLL_VGA_MODE_DIS
;
6558 if (crtc
->pipe
!= PIPE_A
)
6559 pipe_config
->dpll_hw_state
.dpll
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
6561 /* DPLL not used with DSI, but still need the rest set up */
6562 if (!intel_crtc_has_type(pipe_config
, INTEL_OUTPUT_DSI
))
6563 pipe_config
->dpll_hw_state
.dpll
|= DPLL_VCO_ENABLE
;
6565 pipe_config
->dpll_hw_state
.dpll_md
=
6566 (pipe_config
->pixel_multiplier
- 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
6569 static void vlv_prepare_pll(struct intel_crtc
*crtc
,
6570 const struct intel_crtc_state
*pipe_config
)
6572 struct drm_device
*dev
= crtc
->base
.dev
;
6573 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6574 enum pipe pipe
= crtc
->pipe
;
6576 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
;
6577 u32 coreclk
, reg_val
;
6580 I915_WRITE(DPLL(pipe
),
6581 pipe_config
->dpll_hw_state
.dpll
&
6582 ~(DPLL_VCO_ENABLE
| DPLL_EXT_BUFFER_ENABLE_VLV
));
6584 /* No need to actually set up the DPLL with DSI */
6585 if ((pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
) == 0)
6588 mutex_lock(&dev_priv
->sb_lock
);
6590 bestn
= pipe_config
->dpll
.n
;
6591 bestm1
= pipe_config
->dpll
.m1
;
6592 bestm2
= pipe_config
->dpll
.m2
;
6593 bestp1
= pipe_config
->dpll
.p1
;
6594 bestp2
= pipe_config
->dpll
.p2
;
6596 /* See eDP HDMI DPIO driver vbios notes doc */
6598 /* PLL B needs special handling */
6600 vlv_pllb_recal_opamp(dev_priv
, pipe
);
6602 /* Set up Tx target for periodic Rcomp update */
6603 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9_BCAST
, 0x0100000f);
6605 /* Disable target IRef on PLL */
6606 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW8(pipe
));
6607 reg_val
&= 0x00ffffff;
6608 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW8(pipe
), reg_val
);
6610 /* Disable fast lock */
6611 vlv_dpio_write(dev_priv
, pipe
, VLV_CMN_DW0
, 0x610);
6613 /* Set idtafcrecal before PLL is enabled */
6614 mdiv
= ((bestm1
<< DPIO_M1DIV_SHIFT
) | (bestm2
& DPIO_M2DIV_MASK
));
6615 mdiv
|= ((bestp1
<< DPIO_P1_SHIFT
) | (bestp2
<< DPIO_P2_SHIFT
));
6616 mdiv
|= ((bestn
<< DPIO_N_SHIFT
));
6617 mdiv
|= (1 << DPIO_K_SHIFT
);
6620 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
6621 * but we don't support that).
6622 * Note: don't use the DAC post divider as it seems unstable.
6624 mdiv
|= (DPIO_POST_DIV_HDMIDP
<< DPIO_POST_DIV_SHIFT
);
6625 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW3(pipe
), mdiv
);
6627 mdiv
|= DPIO_ENABLE_CALIBRATION
;
6628 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW3(pipe
), mdiv
);
6630 /* Set HBR and RBR LPF coefficients */
6631 if (pipe_config
->port_clock
== 162000 ||
6632 intel_crtc_has_type(crtc
->config
, INTEL_OUTPUT_ANALOG
) ||
6633 intel_crtc_has_type(crtc
->config
, INTEL_OUTPUT_HDMI
))
6634 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW10(pipe
),
6637 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW10(pipe
),
6640 if (intel_crtc_has_dp_encoder(pipe_config
)) {
6641 /* Use SSC source */
6643 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
6646 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
6648 } else { /* HDMI or VGA */
6649 /* Use bend source */
6651 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
6654 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
6658 coreclk
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW7(pipe
));
6659 coreclk
= (coreclk
& 0x0000ff00) | 0x01c00000;
6660 if (intel_crtc_has_dp_encoder(crtc
->config
))
6661 coreclk
|= 0x01000000;
6662 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW7(pipe
), coreclk
);
6664 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW11(pipe
), 0x87871000);
6665 mutex_unlock(&dev_priv
->sb_lock
);
6668 static void chv_prepare_pll(struct intel_crtc
*crtc
,
6669 const struct intel_crtc_state
*pipe_config
)
6671 struct drm_device
*dev
= crtc
->base
.dev
;
6672 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6673 enum pipe pipe
= crtc
->pipe
;
6674 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
6675 u32 loopfilter
, tribuf_calcntr
;
6676 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
, bestm2_frac
;
6680 /* Enable Refclk and SSC */
6681 I915_WRITE(DPLL(pipe
),
6682 pipe_config
->dpll_hw_state
.dpll
& ~DPLL_VCO_ENABLE
);
6684 /* No need to actually set up the DPLL with DSI */
6685 if ((pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
) == 0)
6688 bestn
= pipe_config
->dpll
.n
;
6689 bestm2_frac
= pipe_config
->dpll
.m2
& 0x3fffff;
6690 bestm1
= pipe_config
->dpll
.m1
;
6691 bestm2
= pipe_config
->dpll
.m2
>> 22;
6692 bestp1
= pipe_config
->dpll
.p1
;
6693 bestp2
= pipe_config
->dpll
.p2
;
6694 vco
= pipe_config
->dpll
.vco
;
6698 mutex_lock(&dev_priv
->sb_lock
);
6700 /* p1 and p2 divider */
6701 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW13(port
),
6702 5 << DPIO_CHV_S1_DIV_SHIFT
|
6703 bestp1
<< DPIO_CHV_P1_DIV_SHIFT
|
6704 bestp2
<< DPIO_CHV_P2_DIV_SHIFT
|
6705 1 << DPIO_CHV_K_DIV_SHIFT
);
6707 /* Feedback post-divider - m2 */
6708 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW0(port
), bestm2
);
6710 /* Feedback refclk divider - n and m1 */
6711 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW1(port
),
6712 DPIO_CHV_M1_DIV_BY_2
|
6713 1 << DPIO_CHV_N_DIV_SHIFT
);
6715 /* M2 fraction division */
6716 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW2(port
), bestm2_frac
);
6718 /* M2 fraction division enable */
6719 dpio_val
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW3(port
));
6720 dpio_val
&= ~(DPIO_CHV_FEEDFWD_GAIN_MASK
| DPIO_CHV_FRAC_DIV_EN
);
6721 dpio_val
|= (2 << DPIO_CHV_FEEDFWD_GAIN_SHIFT
);
6723 dpio_val
|= DPIO_CHV_FRAC_DIV_EN
;
6724 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW3(port
), dpio_val
);
6726 /* Program digital lock detect threshold */
6727 dpio_val
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW9(port
));
6728 dpio_val
&= ~(DPIO_CHV_INT_LOCK_THRESHOLD_MASK
|
6729 DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE
);
6730 dpio_val
|= (0x5 << DPIO_CHV_INT_LOCK_THRESHOLD_SHIFT
);
6732 dpio_val
|= DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE
;
6733 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW9(port
), dpio_val
);
6736 if (vco
== 5400000) {
6737 loopfilter
|= (0x3 << DPIO_CHV_PROP_COEFF_SHIFT
);
6738 loopfilter
|= (0x8 << DPIO_CHV_INT_COEFF_SHIFT
);
6739 loopfilter
|= (0x1 << DPIO_CHV_GAIN_CTRL_SHIFT
);
6740 tribuf_calcntr
= 0x9;
6741 } else if (vco
<= 6200000) {
6742 loopfilter
|= (0x5 << DPIO_CHV_PROP_COEFF_SHIFT
);
6743 loopfilter
|= (0xB << DPIO_CHV_INT_COEFF_SHIFT
);
6744 loopfilter
|= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT
);
6745 tribuf_calcntr
= 0x9;
6746 } else if (vco
<= 6480000) {
6747 loopfilter
|= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT
);
6748 loopfilter
|= (0x9 << DPIO_CHV_INT_COEFF_SHIFT
);
6749 loopfilter
|= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT
);
6750 tribuf_calcntr
= 0x8;
6752 /* Not supported. Apply the same limits as in the max case */
6753 loopfilter
|= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT
);
6754 loopfilter
|= (0x9 << DPIO_CHV_INT_COEFF_SHIFT
);
6755 loopfilter
|= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT
);
6758 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW6(port
), loopfilter
);
6760 dpio_val
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW8(port
));
6761 dpio_val
&= ~DPIO_CHV_TDC_TARGET_CNT_MASK
;
6762 dpio_val
|= (tribuf_calcntr
<< DPIO_CHV_TDC_TARGET_CNT_SHIFT
);
6763 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW8(port
), dpio_val
);
6766 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
),
6767 vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
)) |
6770 mutex_unlock(&dev_priv
->sb_lock
);
6774 * vlv_force_pll_on - forcibly enable just the PLL
6775 * @dev_priv: i915 private structure
6776 * @pipe: pipe PLL to enable
6777 * @dpll: PLL configuration
6779 * Enable the PLL for @pipe using the supplied @dpll config. To be used
6780 * in cases where we need the PLL enabled even when @pipe is not going to
6783 int vlv_force_pll_on(struct drm_i915_private
*dev_priv
, enum pipe pipe
,
6784 const struct dpll
*dpll
)
6786 struct intel_crtc
*crtc
= intel_get_crtc_for_pipe(dev_priv
, pipe
);
6787 struct intel_crtc_state
*pipe_config
;
6789 pipe_config
= kzalloc(sizeof(*pipe_config
), GFP_KERNEL
);
6793 pipe_config
->base
.crtc
= &crtc
->base
;
6794 pipe_config
->pixel_multiplier
= 1;
6795 pipe_config
->dpll
= *dpll
;
6797 if (IS_CHERRYVIEW(dev_priv
)) {
6798 chv_compute_dpll(crtc
, pipe_config
);
6799 chv_prepare_pll(crtc
, pipe_config
);
6800 chv_enable_pll(crtc
, pipe_config
);
6802 vlv_compute_dpll(crtc
, pipe_config
);
6803 vlv_prepare_pll(crtc
, pipe_config
);
6804 vlv_enable_pll(crtc
, pipe_config
);
6813 * vlv_force_pll_off - forcibly disable just the PLL
6814 * @dev_priv: i915 private structure
6815 * @pipe: pipe PLL to disable
6817 * Disable the PLL for @pipe. To be used in cases where we need
6818 * the PLL enabled even when @pipe is not going to be enabled.
6820 void vlv_force_pll_off(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
6822 if (IS_CHERRYVIEW(dev_priv
))
6823 chv_disable_pll(dev_priv
, pipe
);
6825 vlv_disable_pll(dev_priv
, pipe
);
6828 static void i9xx_compute_dpll(struct intel_crtc
*crtc
,
6829 struct intel_crtc_state
*crtc_state
,
6830 struct dpll
*reduced_clock
)
6832 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
6834 struct dpll
*clock
= &crtc_state
->dpll
;
6836 i9xx_update_pll_dividers(crtc
, crtc_state
, reduced_clock
);
6838 dpll
= DPLL_VGA_MODE_DIS
;
6840 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
))
6841 dpll
|= DPLLB_MODE_LVDS
;
6843 dpll
|= DPLLB_MODE_DAC_SERIAL
;
6845 if (IS_I945G(dev_priv
) || IS_I945GM(dev_priv
) ||
6846 IS_G33(dev_priv
) || IS_PINEVIEW(dev_priv
)) {
6847 dpll
|= (crtc_state
->pixel_multiplier
- 1)
6848 << SDVO_MULTIPLIER_SHIFT_HIRES
;
6851 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_SDVO
) ||
6852 intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_HDMI
))
6853 dpll
|= DPLL_SDVO_HIGH_SPEED
;
6855 if (intel_crtc_has_dp_encoder(crtc_state
))
6856 dpll
|= DPLL_SDVO_HIGH_SPEED
;
6858 /* compute bitmask from p1 value */
6859 if (IS_PINEVIEW(dev_priv
))
6860 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
;
6862 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
6863 if (IS_G4X(dev_priv
) && reduced_clock
)
6864 dpll
|= (1 << (reduced_clock
->p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
6866 switch (clock
->p2
) {
6868 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
6871 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
6874 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
6877 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
6880 if (INTEL_GEN(dev_priv
) >= 4)
6881 dpll
|= (6 << PLL_LOAD_PULSE_PHASE_SHIFT
);
6883 if (crtc_state
->sdvo_tv_clock
)
6884 dpll
|= PLL_REF_INPUT_TVCLKINBC
;
6885 else if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
6886 intel_panel_use_ssc(dev_priv
))
6887 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
6889 dpll
|= PLL_REF_INPUT_DREFCLK
;
6891 dpll
|= DPLL_VCO_ENABLE
;
6892 crtc_state
->dpll_hw_state
.dpll
= dpll
;
6894 if (INTEL_GEN(dev_priv
) >= 4) {
6895 u32 dpll_md
= (crtc_state
->pixel_multiplier
- 1)
6896 << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
6897 crtc_state
->dpll_hw_state
.dpll_md
= dpll_md
;
6901 static void i8xx_compute_dpll(struct intel_crtc
*crtc
,
6902 struct intel_crtc_state
*crtc_state
,
6903 struct dpll
*reduced_clock
)
6905 struct drm_device
*dev
= crtc
->base
.dev
;
6906 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6908 struct dpll
*clock
= &crtc_state
->dpll
;
6910 i9xx_update_pll_dividers(crtc
, crtc_state
, reduced_clock
);
6912 dpll
= DPLL_VGA_MODE_DIS
;
6914 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
6915 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
6918 dpll
|= PLL_P1_DIVIDE_BY_TWO
;
6920 dpll
|= (clock
->p1
- 2) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
6922 dpll
|= PLL_P2_DIVIDE_BY_4
;
6925 if (!IS_I830(dev_priv
) &&
6926 intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_DVO
))
6927 dpll
|= DPLL_DVO_2X_MODE
;
6929 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
6930 intel_panel_use_ssc(dev_priv
))
6931 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
6933 dpll
|= PLL_REF_INPUT_DREFCLK
;
6935 dpll
|= DPLL_VCO_ENABLE
;
6936 crtc_state
->dpll_hw_state
.dpll
= dpll
;
6939 static void intel_set_pipe_timings(struct intel_crtc
*intel_crtc
)
6941 struct drm_i915_private
*dev_priv
= to_i915(intel_crtc
->base
.dev
);
6942 enum pipe pipe
= intel_crtc
->pipe
;
6943 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
6944 const struct drm_display_mode
*adjusted_mode
= &intel_crtc
->config
->base
.adjusted_mode
;
6945 uint32_t crtc_vtotal
, crtc_vblank_end
;
6948 /* We need to be careful not to changed the adjusted mode, for otherwise
6949 * the hw state checker will get angry at the mismatch. */
6950 crtc_vtotal
= adjusted_mode
->crtc_vtotal
;
6951 crtc_vblank_end
= adjusted_mode
->crtc_vblank_end
;
6953 if (adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
) {
6954 /* the chip adds 2 halflines automatically */
6956 crtc_vblank_end
-= 1;
6958 if (intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_SDVO
))
6959 vsyncshift
= (adjusted_mode
->crtc_htotal
- 1) / 2;
6961 vsyncshift
= adjusted_mode
->crtc_hsync_start
-
6962 adjusted_mode
->crtc_htotal
/ 2;
6964 vsyncshift
+= adjusted_mode
->crtc_htotal
;
6967 if (INTEL_GEN(dev_priv
) > 3)
6968 I915_WRITE(VSYNCSHIFT(cpu_transcoder
), vsyncshift
);
6970 I915_WRITE(HTOTAL(cpu_transcoder
),
6971 (adjusted_mode
->crtc_hdisplay
- 1) |
6972 ((adjusted_mode
->crtc_htotal
- 1) << 16));
6973 I915_WRITE(HBLANK(cpu_transcoder
),
6974 (adjusted_mode
->crtc_hblank_start
- 1) |
6975 ((adjusted_mode
->crtc_hblank_end
- 1) << 16));
6976 I915_WRITE(HSYNC(cpu_transcoder
),
6977 (adjusted_mode
->crtc_hsync_start
- 1) |
6978 ((adjusted_mode
->crtc_hsync_end
- 1) << 16));
6980 I915_WRITE(VTOTAL(cpu_transcoder
),
6981 (adjusted_mode
->crtc_vdisplay
- 1) |
6982 ((crtc_vtotal
- 1) << 16));
6983 I915_WRITE(VBLANK(cpu_transcoder
),
6984 (adjusted_mode
->crtc_vblank_start
- 1) |
6985 ((crtc_vblank_end
- 1) << 16));
6986 I915_WRITE(VSYNC(cpu_transcoder
),
6987 (adjusted_mode
->crtc_vsync_start
- 1) |
6988 ((adjusted_mode
->crtc_vsync_end
- 1) << 16));
6990 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
6991 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
6992 * documented on the DDI_FUNC_CTL register description, EDP Input Select
6994 if (IS_HASWELL(dev_priv
) && cpu_transcoder
== TRANSCODER_EDP
&&
6995 (pipe
== PIPE_B
|| pipe
== PIPE_C
))
6996 I915_WRITE(VTOTAL(pipe
), I915_READ(VTOTAL(cpu_transcoder
)));
7000 static void intel_set_pipe_src_size(struct intel_crtc
*intel_crtc
)
7002 struct drm_device
*dev
= intel_crtc
->base
.dev
;
7003 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7004 enum pipe pipe
= intel_crtc
->pipe
;
7006 /* pipesrc controls the size that is scaled from, which should
7007 * always be the user's requested size.
7009 I915_WRITE(PIPESRC(pipe
),
7010 ((intel_crtc
->config
->pipe_src_w
- 1) << 16) |
7011 (intel_crtc
->config
->pipe_src_h
- 1));
7014 static void intel_get_pipe_timings(struct intel_crtc
*crtc
,
7015 struct intel_crtc_state
*pipe_config
)
7017 struct drm_device
*dev
= crtc
->base
.dev
;
7018 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7019 enum transcoder cpu_transcoder
= pipe_config
->cpu_transcoder
;
7022 tmp
= I915_READ(HTOTAL(cpu_transcoder
));
7023 pipe_config
->base
.adjusted_mode
.crtc_hdisplay
= (tmp
& 0xffff) + 1;
7024 pipe_config
->base
.adjusted_mode
.crtc_htotal
= ((tmp
>> 16) & 0xffff) + 1;
7025 tmp
= I915_READ(HBLANK(cpu_transcoder
));
7026 pipe_config
->base
.adjusted_mode
.crtc_hblank_start
= (tmp
& 0xffff) + 1;
7027 pipe_config
->base
.adjusted_mode
.crtc_hblank_end
= ((tmp
>> 16) & 0xffff) + 1;
7028 tmp
= I915_READ(HSYNC(cpu_transcoder
));
7029 pipe_config
->base
.adjusted_mode
.crtc_hsync_start
= (tmp
& 0xffff) + 1;
7030 pipe_config
->base
.adjusted_mode
.crtc_hsync_end
= ((tmp
>> 16) & 0xffff) + 1;
7032 tmp
= I915_READ(VTOTAL(cpu_transcoder
));
7033 pipe_config
->base
.adjusted_mode
.crtc_vdisplay
= (tmp
& 0xffff) + 1;
7034 pipe_config
->base
.adjusted_mode
.crtc_vtotal
= ((tmp
>> 16) & 0xffff) + 1;
7035 tmp
= I915_READ(VBLANK(cpu_transcoder
));
7036 pipe_config
->base
.adjusted_mode
.crtc_vblank_start
= (tmp
& 0xffff) + 1;
7037 pipe_config
->base
.adjusted_mode
.crtc_vblank_end
= ((tmp
>> 16) & 0xffff) + 1;
7038 tmp
= I915_READ(VSYNC(cpu_transcoder
));
7039 pipe_config
->base
.adjusted_mode
.crtc_vsync_start
= (tmp
& 0xffff) + 1;
7040 pipe_config
->base
.adjusted_mode
.crtc_vsync_end
= ((tmp
>> 16) & 0xffff) + 1;
7042 if (I915_READ(PIPECONF(cpu_transcoder
)) & PIPECONF_INTERLACE_MASK
) {
7043 pipe_config
->base
.adjusted_mode
.flags
|= DRM_MODE_FLAG_INTERLACE
;
7044 pipe_config
->base
.adjusted_mode
.crtc_vtotal
+= 1;
7045 pipe_config
->base
.adjusted_mode
.crtc_vblank_end
+= 1;
7049 static void intel_get_pipe_src_size(struct intel_crtc
*crtc
,
7050 struct intel_crtc_state
*pipe_config
)
7052 struct drm_device
*dev
= crtc
->base
.dev
;
7053 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7056 tmp
= I915_READ(PIPESRC(crtc
->pipe
));
7057 pipe_config
->pipe_src_h
= (tmp
& 0xffff) + 1;
7058 pipe_config
->pipe_src_w
= ((tmp
>> 16) & 0xffff) + 1;
7060 pipe_config
->base
.mode
.vdisplay
= pipe_config
->pipe_src_h
;
7061 pipe_config
->base
.mode
.hdisplay
= pipe_config
->pipe_src_w
;
7064 void intel_mode_from_pipe_config(struct drm_display_mode
*mode
,
7065 struct intel_crtc_state
*pipe_config
)
7067 mode
->hdisplay
= pipe_config
->base
.adjusted_mode
.crtc_hdisplay
;
7068 mode
->htotal
= pipe_config
->base
.adjusted_mode
.crtc_htotal
;
7069 mode
->hsync_start
= pipe_config
->base
.adjusted_mode
.crtc_hsync_start
;
7070 mode
->hsync_end
= pipe_config
->base
.adjusted_mode
.crtc_hsync_end
;
7072 mode
->vdisplay
= pipe_config
->base
.adjusted_mode
.crtc_vdisplay
;
7073 mode
->vtotal
= pipe_config
->base
.adjusted_mode
.crtc_vtotal
;
7074 mode
->vsync_start
= pipe_config
->base
.adjusted_mode
.crtc_vsync_start
;
7075 mode
->vsync_end
= pipe_config
->base
.adjusted_mode
.crtc_vsync_end
;
7077 mode
->flags
= pipe_config
->base
.adjusted_mode
.flags
;
7078 mode
->type
= DRM_MODE_TYPE_DRIVER
;
7080 mode
->clock
= pipe_config
->base
.adjusted_mode
.crtc_clock
;
7082 mode
->hsync
= drm_mode_hsync(mode
);
7083 mode
->vrefresh
= drm_mode_vrefresh(mode
);
7084 drm_mode_set_name(mode
);
7087 static void i9xx_set_pipeconf(struct intel_crtc
*intel_crtc
)
7089 struct drm_i915_private
*dev_priv
= to_i915(intel_crtc
->base
.dev
);
7094 /* we keep both pipes enabled on 830 */
7095 if (IS_I830(dev_priv
))
7096 pipeconf
|= I915_READ(PIPECONF(intel_crtc
->pipe
)) & PIPECONF_ENABLE
;
7098 if (intel_crtc
->config
->double_wide
)
7099 pipeconf
|= PIPECONF_DOUBLE_WIDE
;
7101 /* only g4x and later have fancy bpc/dither controls */
7102 if (IS_G4X(dev_priv
) || IS_VALLEYVIEW(dev_priv
) ||
7103 IS_CHERRYVIEW(dev_priv
)) {
7104 /* Bspec claims that we can't use dithering for 30bpp pipes. */
7105 if (intel_crtc
->config
->dither
&& intel_crtc
->config
->pipe_bpp
!= 30)
7106 pipeconf
|= PIPECONF_DITHER_EN
|
7107 PIPECONF_DITHER_TYPE_SP
;
7109 switch (intel_crtc
->config
->pipe_bpp
) {
7111 pipeconf
|= PIPECONF_6BPC
;
7114 pipeconf
|= PIPECONF_8BPC
;
7117 pipeconf
|= PIPECONF_10BPC
;
7120 /* Case prevented by intel_choose_pipe_bpp_dither. */
7125 if (intel_crtc
->config
->base
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
) {
7126 if (INTEL_GEN(dev_priv
) < 4 ||
7127 intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_SDVO
))
7128 pipeconf
|= PIPECONF_INTERLACE_W_FIELD_INDICATION
;
7130 pipeconf
|= PIPECONF_INTERLACE_W_SYNC_SHIFT
;
7132 pipeconf
|= PIPECONF_PROGRESSIVE
;
7134 if ((IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) &&
7135 intel_crtc
->config
->limited_color_range
)
7136 pipeconf
|= PIPECONF_COLOR_RANGE_SELECT
;
7138 I915_WRITE(PIPECONF(intel_crtc
->pipe
), pipeconf
);
7139 POSTING_READ(PIPECONF(intel_crtc
->pipe
));
7142 static int i8xx_crtc_compute_clock(struct intel_crtc
*crtc
,
7143 struct intel_crtc_state
*crtc_state
)
7145 struct drm_device
*dev
= crtc
->base
.dev
;
7146 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7147 const struct intel_limit
*limit
;
7150 memset(&crtc_state
->dpll_hw_state
, 0,
7151 sizeof(crtc_state
->dpll_hw_state
));
7153 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
7154 if (intel_panel_use_ssc(dev_priv
)) {
7155 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
7156 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk
);
7159 limit
= &intel_limits_i8xx_lvds
;
7160 } else if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_DVO
)) {
7161 limit
= &intel_limits_i8xx_dvo
;
7163 limit
= &intel_limits_i8xx_dac
;
7166 if (!crtc_state
->clock_set
&&
7167 !i9xx_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
7168 refclk
, NULL
, &crtc_state
->dpll
)) {
7169 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7173 i8xx_compute_dpll(crtc
, crtc_state
, NULL
);
7178 static int g4x_crtc_compute_clock(struct intel_crtc
*crtc
,
7179 struct intel_crtc_state
*crtc_state
)
7181 struct drm_device
*dev
= crtc
->base
.dev
;
7182 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7183 const struct intel_limit
*limit
;
7186 memset(&crtc_state
->dpll_hw_state
, 0,
7187 sizeof(crtc_state
->dpll_hw_state
));
7189 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
7190 if (intel_panel_use_ssc(dev_priv
)) {
7191 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
7192 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk
);
7195 if (intel_is_dual_link_lvds(dev
))
7196 limit
= &intel_limits_g4x_dual_channel_lvds
;
7198 limit
= &intel_limits_g4x_single_channel_lvds
;
7199 } else if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_HDMI
) ||
7200 intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_ANALOG
)) {
7201 limit
= &intel_limits_g4x_hdmi
;
7202 } else if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_SDVO
)) {
7203 limit
= &intel_limits_g4x_sdvo
;
7205 /* The option is for other outputs */
7206 limit
= &intel_limits_i9xx_sdvo
;
7209 if (!crtc_state
->clock_set
&&
7210 !g4x_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
7211 refclk
, NULL
, &crtc_state
->dpll
)) {
7212 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7216 i9xx_compute_dpll(crtc
, crtc_state
, NULL
);
7221 static int pnv_crtc_compute_clock(struct intel_crtc
*crtc
,
7222 struct intel_crtc_state
*crtc_state
)
7224 struct drm_device
*dev
= crtc
->base
.dev
;
7225 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7226 const struct intel_limit
*limit
;
7229 memset(&crtc_state
->dpll_hw_state
, 0,
7230 sizeof(crtc_state
->dpll_hw_state
));
7232 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
7233 if (intel_panel_use_ssc(dev_priv
)) {
7234 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
7235 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk
);
7238 limit
= &intel_limits_pineview_lvds
;
7240 limit
= &intel_limits_pineview_sdvo
;
7243 if (!crtc_state
->clock_set
&&
7244 !pnv_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
7245 refclk
, NULL
, &crtc_state
->dpll
)) {
7246 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7250 i9xx_compute_dpll(crtc
, crtc_state
, NULL
);
7255 static int i9xx_crtc_compute_clock(struct intel_crtc
*crtc
,
7256 struct intel_crtc_state
*crtc_state
)
7258 struct drm_device
*dev
= crtc
->base
.dev
;
7259 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7260 const struct intel_limit
*limit
;
7263 memset(&crtc_state
->dpll_hw_state
, 0,
7264 sizeof(crtc_state
->dpll_hw_state
));
7266 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
7267 if (intel_panel_use_ssc(dev_priv
)) {
7268 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
7269 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk
);
7272 limit
= &intel_limits_i9xx_lvds
;
7274 limit
= &intel_limits_i9xx_sdvo
;
7277 if (!crtc_state
->clock_set
&&
7278 !i9xx_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
7279 refclk
, NULL
, &crtc_state
->dpll
)) {
7280 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7284 i9xx_compute_dpll(crtc
, crtc_state
, NULL
);
7289 static int chv_crtc_compute_clock(struct intel_crtc
*crtc
,
7290 struct intel_crtc_state
*crtc_state
)
7292 int refclk
= 100000;
7293 const struct intel_limit
*limit
= &intel_limits_chv
;
7295 memset(&crtc_state
->dpll_hw_state
, 0,
7296 sizeof(crtc_state
->dpll_hw_state
));
7298 if (!crtc_state
->clock_set
&&
7299 !chv_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
7300 refclk
, NULL
, &crtc_state
->dpll
)) {
7301 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7305 chv_compute_dpll(crtc
, crtc_state
);
7310 static int vlv_crtc_compute_clock(struct intel_crtc
*crtc
,
7311 struct intel_crtc_state
*crtc_state
)
7313 int refclk
= 100000;
7314 const struct intel_limit
*limit
= &intel_limits_vlv
;
7316 memset(&crtc_state
->dpll_hw_state
, 0,
7317 sizeof(crtc_state
->dpll_hw_state
));
7319 if (!crtc_state
->clock_set
&&
7320 !vlv_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
7321 refclk
, NULL
, &crtc_state
->dpll
)) {
7322 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7326 vlv_compute_dpll(crtc
, crtc_state
);
7331 static void i9xx_get_pfit_config(struct intel_crtc
*crtc
,
7332 struct intel_crtc_state
*pipe_config
)
7334 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
7337 if (INTEL_GEN(dev_priv
) <= 3 &&
7338 (IS_I830(dev_priv
) || !IS_MOBILE(dev_priv
)))
7341 tmp
= I915_READ(PFIT_CONTROL
);
7342 if (!(tmp
& PFIT_ENABLE
))
7345 /* Check whether the pfit is attached to our pipe. */
7346 if (INTEL_GEN(dev_priv
) < 4) {
7347 if (crtc
->pipe
!= PIPE_B
)
7350 if ((tmp
& PFIT_PIPE_MASK
) != (crtc
->pipe
<< PFIT_PIPE_SHIFT
))
7354 pipe_config
->gmch_pfit
.control
= tmp
;
7355 pipe_config
->gmch_pfit
.pgm_ratios
= I915_READ(PFIT_PGM_RATIOS
);
7358 static void vlv_crtc_clock_get(struct intel_crtc
*crtc
,
7359 struct intel_crtc_state
*pipe_config
)
7361 struct drm_device
*dev
= crtc
->base
.dev
;
7362 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7363 int pipe
= pipe_config
->cpu_transcoder
;
7366 int refclk
= 100000;
7368 /* In case of DSI, DPLL will not be used */
7369 if ((pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
) == 0)
7372 mutex_lock(&dev_priv
->sb_lock
);
7373 mdiv
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW3(pipe
));
7374 mutex_unlock(&dev_priv
->sb_lock
);
7376 clock
.m1
= (mdiv
>> DPIO_M1DIV_SHIFT
) & 7;
7377 clock
.m2
= mdiv
& DPIO_M2DIV_MASK
;
7378 clock
.n
= (mdiv
>> DPIO_N_SHIFT
) & 0xf;
7379 clock
.p1
= (mdiv
>> DPIO_P1_SHIFT
) & 7;
7380 clock
.p2
= (mdiv
>> DPIO_P2_SHIFT
) & 0x1f;
7382 pipe_config
->port_clock
= vlv_calc_dpll_params(refclk
, &clock
);
7386 i9xx_get_initial_plane_config(struct intel_crtc
*crtc
,
7387 struct intel_initial_plane_config
*plane_config
)
7389 struct drm_device
*dev
= crtc
->base
.dev
;
7390 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7391 u32 val
, base
, offset
;
7392 int pipe
= crtc
->pipe
, plane
= crtc
->plane
;
7393 int fourcc
, pixel_format
;
7394 unsigned int aligned_height
;
7395 struct drm_framebuffer
*fb
;
7396 struct intel_framebuffer
*intel_fb
;
7398 val
= I915_READ(DSPCNTR(plane
));
7399 if (!(val
& DISPLAY_PLANE_ENABLE
))
7402 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
7404 DRM_DEBUG_KMS("failed to alloc fb\n");
7408 fb
= &intel_fb
->base
;
7412 if (INTEL_GEN(dev_priv
) >= 4) {
7413 if (val
& DISPPLANE_TILED
) {
7414 plane_config
->tiling
= I915_TILING_X
;
7415 fb
->modifier
= I915_FORMAT_MOD_X_TILED
;
7419 pixel_format
= val
& DISPPLANE_PIXFORMAT_MASK
;
7420 fourcc
= i9xx_format_to_fourcc(pixel_format
);
7421 fb
->format
= drm_format_info(fourcc
);
7423 if (INTEL_GEN(dev_priv
) >= 4) {
7424 if (plane_config
->tiling
)
7425 offset
= I915_READ(DSPTILEOFF(plane
));
7427 offset
= I915_READ(DSPLINOFF(plane
));
7428 base
= I915_READ(DSPSURF(plane
)) & 0xfffff000;
7430 base
= I915_READ(DSPADDR(plane
));
7432 plane_config
->base
= base
;
7434 val
= I915_READ(PIPESRC(pipe
));
7435 fb
->width
= ((val
>> 16) & 0xfff) + 1;
7436 fb
->height
= ((val
>> 0) & 0xfff) + 1;
7438 val
= I915_READ(DSPSTRIDE(pipe
));
7439 fb
->pitches
[0] = val
& 0xffffffc0;
7441 aligned_height
= intel_fb_align_height(fb
, 0, fb
->height
);
7443 plane_config
->size
= fb
->pitches
[0] * aligned_height
;
7445 DRM_DEBUG_KMS("pipe/plane %c/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
7446 pipe_name(pipe
), plane
, fb
->width
, fb
->height
,
7447 fb
->format
->cpp
[0] * 8, base
, fb
->pitches
[0],
7448 plane_config
->size
);
7450 plane_config
->fb
= intel_fb
;
7453 static void chv_crtc_clock_get(struct intel_crtc
*crtc
,
7454 struct intel_crtc_state
*pipe_config
)
7456 struct drm_device
*dev
= crtc
->base
.dev
;
7457 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7458 int pipe
= pipe_config
->cpu_transcoder
;
7459 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
7461 u32 cmn_dw13
, pll_dw0
, pll_dw1
, pll_dw2
, pll_dw3
;
7462 int refclk
= 100000;
7464 /* In case of DSI, DPLL will not be used */
7465 if ((pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
) == 0)
7468 mutex_lock(&dev_priv
->sb_lock
);
7469 cmn_dw13
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW13(port
));
7470 pll_dw0
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW0(port
));
7471 pll_dw1
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW1(port
));
7472 pll_dw2
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW2(port
));
7473 pll_dw3
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW3(port
));
7474 mutex_unlock(&dev_priv
->sb_lock
);
7476 clock
.m1
= (pll_dw1
& 0x7) == DPIO_CHV_M1_DIV_BY_2
? 2 : 0;
7477 clock
.m2
= (pll_dw0
& 0xff) << 22;
7478 if (pll_dw3
& DPIO_CHV_FRAC_DIV_EN
)
7479 clock
.m2
|= pll_dw2
& 0x3fffff;
7480 clock
.n
= (pll_dw1
>> DPIO_CHV_N_DIV_SHIFT
) & 0xf;
7481 clock
.p1
= (cmn_dw13
>> DPIO_CHV_P1_DIV_SHIFT
) & 0x7;
7482 clock
.p2
= (cmn_dw13
>> DPIO_CHV_P2_DIV_SHIFT
) & 0x1f;
7484 pipe_config
->port_clock
= chv_calc_dpll_params(refclk
, &clock
);
7487 static bool i9xx_get_pipe_config(struct intel_crtc
*crtc
,
7488 struct intel_crtc_state
*pipe_config
)
7490 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
7491 enum intel_display_power_domain power_domain
;
7495 power_domain
= POWER_DOMAIN_PIPE(crtc
->pipe
);
7496 if (!intel_display_power_get_if_enabled(dev_priv
, power_domain
))
7499 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
7500 pipe_config
->shared_dpll
= NULL
;
7504 tmp
= I915_READ(PIPECONF(crtc
->pipe
));
7505 if (!(tmp
& PIPECONF_ENABLE
))
7508 if (IS_G4X(dev_priv
) || IS_VALLEYVIEW(dev_priv
) ||
7509 IS_CHERRYVIEW(dev_priv
)) {
7510 switch (tmp
& PIPECONF_BPC_MASK
) {
7512 pipe_config
->pipe_bpp
= 18;
7515 pipe_config
->pipe_bpp
= 24;
7517 case PIPECONF_10BPC
:
7518 pipe_config
->pipe_bpp
= 30;
7525 if ((IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) &&
7526 (tmp
& PIPECONF_COLOR_RANGE_SELECT
))
7527 pipe_config
->limited_color_range
= true;
7529 if (INTEL_GEN(dev_priv
) < 4)
7530 pipe_config
->double_wide
= tmp
& PIPECONF_DOUBLE_WIDE
;
7532 intel_get_pipe_timings(crtc
, pipe_config
);
7533 intel_get_pipe_src_size(crtc
, pipe_config
);
7535 i9xx_get_pfit_config(crtc
, pipe_config
);
7537 if (INTEL_GEN(dev_priv
) >= 4) {
7538 /* No way to read it out on pipes B and C */
7539 if (IS_CHERRYVIEW(dev_priv
) && crtc
->pipe
!= PIPE_A
)
7540 tmp
= dev_priv
->chv_dpll_md
[crtc
->pipe
];
7542 tmp
= I915_READ(DPLL_MD(crtc
->pipe
));
7543 pipe_config
->pixel_multiplier
=
7544 ((tmp
& DPLL_MD_UDI_MULTIPLIER_MASK
)
7545 >> DPLL_MD_UDI_MULTIPLIER_SHIFT
) + 1;
7546 pipe_config
->dpll_hw_state
.dpll_md
= tmp
;
7547 } else if (IS_I945G(dev_priv
) || IS_I945GM(dev_priv
) ||
7548 IS_G33(dev_priv
) || IS_PINEVIEW(dev_priv
)) {
7549 tmp
= I915_READ(DPLL(crtc
->pipe
));
7550 pipe_config
->pixel_multiplier
=
7551 ((tmp
& SDVO_MULTIPLIER_MASK
)
7552 >> SDVO_MULTIPLIER_SHIFT_HIRES
) + 1;
7554 /* Note that on i915G/GM the pixel multiplier is in the sdvo
7555 * port and will be fixed up in the encoder->get_config
7557 pipe_config
->pixel_multiplier
= 1;
7559 pipe_config
->dpll_hw_state
.dpll
= I915_READ(DPLL(crtc
->pipe
));
7560 if (!IS_VALLEYVIEW(dev_priv
) && !IS_CHERRYVIEW(dev_priv
)) {
7562 * DPLL_DVO_2X_MODE must be enabled for both DPLLs
7563 * on 830. Filter it out here so that we don't
7564 * report errors due to that.
7566 if (IS_I830(dev_priv
))
7567 pipe_config
->dpll_hw_state
.dpll
&= ~DPLL_DVO_2X_MODE
;
7569 pipe_config
->dpll_hw_state
.fp0
= I915_READ(FP0(crtc
->pipe
));
7570 pipe_config
->dpll_hw_state
.fp1
= I915_READ(FP1(crtc
->pipe
));
7572 /* Mask out read-only status bits. */
7573 pipe_config
->dpll_hw_state
.dpll
&= ~(DPLL_LOCK_VLV
|
7574 DPLL_PORTC_READY_MASK
|
7575 DPLL_PORTB_READY_MASK
);
7578 if (IS_CHERRYVIEW(dev_priv
))
7579 chv_crtc_clock_get(crtc
, pipe_config
);
7580 else if (IS_VALLEYVIEW(dev_priv
))
7581 vlv_crtc_clock_get(crtc
, pipe_config
);
7583 i9xx_crtc_clock_get(crtc
, pipe_config
);
7586 * Normally the dotclock is filled in by the encoder .get_config()
7587 * but in case the pipe is enabled w/o any ports we need a sane
7590 pipe_config
->base
.adjusted_mode
.crtc_clock
=
7591 pipe_config
->port_clock
/ pipe_config
->pixel_multiplier
;
7596 intel_display_power_put(dev_priv
, power_domain
);
7601 static void ironlake_init_pch_refclk(struct drm_i915_private
*dev_priv
)
7603 struct intel_encoder
*encoder
;
7606 bool has_lvds
= false;
7607 bool has_cpu_edp
= false;
7608 bool has_panel
= false;
7609 bool has_ck505
= false;
7610 bool can_ssc
= false;
7611 bool using_ssc_source
= false;
7613 /* We need to take the global config into account */
7614 for_each_intel_encoder(&dev_priv
->drm
, encoder
) {
7615 switch (encoder
->type
) {
7616 case INTEL_OUTPUT_LVDS
:
7620 case INTEL_OUTPUT_EDP
:
7622 if (enc_to_dig_port(&encoder
->base
)->port
== PORT_A
)
7630 if (HAS_PCH_IBX(dev_priv
)) {
7631 has_ck505
= dev_priv
->vbt
.display_clock_mode
;
7632 can_ssc
= has_ck505
;
7638 /* Check if any DPLLs are using the SSC source */
7639 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
7640 u32 temp
= I915_READ(PCH_DPLL(i
));
7642 if (!(temp
& DPLL_VCO_ENABLE
))
7645 if ((temp
& PLL_REF_INPUT_MASK
) ==
7646 PLLB_REF_INPUT_SPREADSPECTRUMIN
) {
7647 using_ssc_source
= true;
7652 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d using_ssc_source %d\n",
7653 has_panel
, has_lvds
, has_ck505
, using_ssc_source
);
7655 /* Ironlake: try to setup display ref clock before DPLL
7656 * enabling. This is only under driver's control after
7657 * PCH B stepping, previous chipset stepping should be
7658 * ignoring this setting.
7660 val
= I915_READ(PCH_DREF_CONTROL
);
7662 /* As we must carefully and slowly disable/enable each source in turn,
7663 * compute the final state we want first and check if we need to
7664 * make any changes at all.
7667 final
&= ~DREF_NONSPREAD_SOURCE_MASK
;
7669 final
|= DREF_NONSPREAD_CK505_ENABLE
;
7671 final
|= DREF_NONSPREAD_SOURCE_ENABLE
;
7673 final
&= ~DREF_SSC_SOURCE_MASK
;
7674 final
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
7675 final
&= ~DREF_SSC1_ENABLE
;
7678 final
|= DREF_SSC_SOURCE_ENABLE
;
7680 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
7681 final
|= DREF_SSC1_ENABLE
;
7684 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
7685 final
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
7687 final
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
7689 final
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
7690 } else if (using_ssc_source
) {
7691 final
|= DREF_SSC_SOURCE_ENABLE
;
7692 final
|= DREF_SSC1_ENABLE
;
7698 /* Always enable nonspread source */
7699 val
&= ~DREF_NONSPREAD_SOURCE_MASK
;
7702 val
|= DREF_NONSPREAD_CK505_ENABLE
;
7704 val
|= DREF_NONSPREAD_SOURCE_ENABLE
;
7707 val
&= ~DREF_SSC_SOURCE_MASK
;
7708 val
|= DREF_SSC_SOURCE_ENABLE
;
7710 /* SSC must be turned on before enabling the CPU output */
7711 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
7712 DRM_DEBUG_KMS("Using SSC on panel\n");
7713 val
|= DREF_SSC1_ENABLE
;
7715 val
&= ~DREF_SSC1_ENABLE
;
7717 /* Get SSC going before enabling the outputs */
7718 I915_WRITE(PCH_DREF_CONTROL
, val
);
7719 POSTING_READ(PCH_DREF_CONTROL
);
7722 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
7724 /* Enable CPU source on CPU attached eDP */
7726 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
7727 DRM_DEBUG_KMS("Using SSC on eDP\n");
7728 val
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
7730 val
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
7732 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
7734 I915_WRITE(PCH_DREF_CONTROL
, val
);
7735 POSTING_READ(PCH_DREF_CONTROL
);
7738 DRM_DEBUG_KMS("Disabling CPU source output\n");
7740 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
7742 /* Turn off CPU output */
7743 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
7745 I915_WRITE(PCH_DREF_CONTROL
, val
);
7746 POSTING_READ(PCH_DREF_CONTROL
);
7749 if (!using_ssc_source
) {
7750 DRM_DEBUG_KMS("Disabling SSC source\n");
7752 /* Turn off the SSC source */
7753 val
&= ~DREF_SSC_SOURCE_MASK
;
7754 val
|= DREF_SSC_SOURCE_DISABLE
;
7757 val
&= ~DREF_SSC1_ENABLE
;
7759 I915_WRITE(PCH_DREF_CONTROL
, val
);
7760 POSTING_READ(PCH_DREF_CONTROL
);
7765 BUG_ON(val
!= final
);
7768 static void lpt_reset_fdi_mphy(struct drm_i915_private
*dev_priv
)
7772 tmp
= I915_READ(SOUTH_CHICKEN2
);
7773 tmp
|= FDI_MPHY_IOSFSB_RESET_CTL
;
7774 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
7776 if (wait_for_us(I915_READ(SOUTH_CHICKEN2
) &
7777 FDI_MPHY_IOSFSB_RESET_STATUS
, 100))
7778 DRM_ERROR("FDI mPHY reset assert timeout\n");
7780 tmp
= I915_READ(SOUTH_CHICKEN2
);
7781 tmp
&= ~FDI_MPHY_IOSFSB_RESET_CTL
;
7782 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
7784 if (wait_for_us((I915_READ(SOUTH_CHICKEN2
) &
7785 FDI_MPHY_IOSFSB_RESET_STATUS
) == 0, 100))
7786 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
7789 /* WaMPhyProgramming:hsw */
7790 static void lpt_program_fdi_mphy(struct drm_i915_private
*dev_priv
)
7794 tmp
= intel_sbi_read(dev_priv
, 0x8008, SBI_MPHY
);
7795 tmp
&= ~(0xFF << 24);
7796 tmp
|= (0x12 << 24);
7797 intel_sbi_write(dev_priv
, 0x8008, tmp
, SBI_MPHY
);
7799 tmp
= intel_sbi_read(dev_priv
, 0x2008, SBI_MPHY
);
7801 intel_sbi_write(dev_priv
, 0x2008, tmp
, SBI_MPHY
);
7803 tmp
= intel_sbi_read(dev_priv
, 0x2108, SBI_MPHY
);
7805 intel_sbi_write(dev_priv
, 0x2108, tmp
, SBI_MPHY
);
7807 tmp
= intel_sbi_read(dev_priv
, 0x206C, SBI_MPHY
);
7808 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
7809 intel_sbi_write(dev_priv
, 0x206C, tmp
, SBI_MPHY
);
7811 tmp
= intel_sbi_read(dev_priv
, 0x216C, SBI_MPHY
);
7812 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
7813 intel_sbi_write(dev_priv
, 0x216C, tmp
, SBI_MPHY
);
7815 tmp
= intel_sbi_read(dev_priv
, 0x2080, SBI_MPHY
);
7818 intel_sbi_write(dev_priv
, 0x2080, tmp
, SBI_MPHY
);
7820 tmp
= intel_sbi_read(dev_priv
, 0x2180, SBI_MPHY
);
7823 intel_sbi_write(dev_priv
, 0x2180, tmp
, SBI_MPHY
);
7825 tmp
= intel_sbi_read(dev_priv
, 0x208C, SBI_MPHY
);
7828 intel_sbi_write(dev_priv
, 0x208C, tmp
, SBI_MPHY
);
7830 tmp
= intel_sbi_read(dev_priv
, 0x218C, SBI_MPHY
);
7833 intel_sbi_write(dev_priv
, 0x218C, tmp
, SBI_MPHY
);
7835 tmp
= intel_sbi_read(dev_priv
, 0x2098, SBI_MPHY
);
7836 tmp
&= ~(0xFF << 16);
7837 tmp
|= (0x1C << 16);
7838 intel_sbi_write(dev_priv
, 0x2098, tmp
, SBI_MPHY
);
7840 tmp
= intel_sbi_read(dev_priv
, 0x2198, SBI_MPHY
);
7841 tmp
&= ~(0xFF << 16);
7842 tmp
|= (0x1C << 16);
7843 intel_sbi_write(dev_priv
, 0x2198, tmp
, SBI_MPHY
);
7845 tmp
= intel_sbi_read(dev_priv
, 0x20C4, SBI_MPHY
);
7847 intel_sbi_write(dev_priv
, 0x20C4, tmp
, SBI_MPHY
);
7849 tmp
= intel_sbi_read(dev_priv
, 0x21C4, SBI_MPHY
);
7851 intel_sbi_write(dev_priv
, 0x21C4, tmp
, SBI_MPHY
);
7853 tmp
= intel_sbi_read(dev_priv
, 0x20EC, SBI_MPHY
);
7854 tmp
&= ~(0xF << 28);
7856 intel_sbi_write(dev_priv
, 0x20EC, tmp
, SBI_MPHY
);
7858 tmp
= intel_sbi_read(dev_priv
, 0x21EC, SBI_MPHY
);
7859 tmp
&= ~(0xF << 28);
7861 intel_sbi_write(dev_priv
, 0x21EC, tmp
, SBI_MPHY
);
7864 /* Implements 3 different sequences from BSpec chapter "Display iCLK
7865 * Programming" based on the parameters passed:
7866 * - Sequence to enable CLKOUT_DP
7867 * - Sequence to enable CLKOUT_DP without spread
7868 * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O
7870 static void lpt_enable_clkout_dp(struct drm_i915_private
*dev_priv
,
7871 bool with_spread
, bool with_fdi
)
7875 if (WARN(with_fdi
&& !with_spread
, "FDI requires downspread\n"))
7877 if (WARN(HAS_PCH_LPT_LP(dev_priv
) &&
7878 with_fdi
, "LP PCH doesn't have FDI\n"))
7881 mutex_lock(&dev_priv
->sb_lock
);
7883 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
7884 tmp
&= ~SBI_SSCCTL_DISABLE
;
7885 tmp
|= SBI_SSCCTL_PATHALT
;
7886 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
7891 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
7892 tmp
&= ~SBI_SSCCTL_PATHALT
;
7893 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
7896 lpt_reset_fdi_mphy(dev_priv
);
7897 lpt_program_fdi_mphy(dev_priv
);
7901 reg
= HAS_PCH_LPT_LP(dev_priv
) ? SBI_GEN0
: SBI_DBUFF0
;
7902 tmp
= intel_sbi_read(dev_priv
, reg
, SBI_ICLK
);
7903 tmp
|= SBI_GEN0_CFG_BUFFENABLE_DISABLE
;
7904 intel_sbi_write(dev_priv
, reg
, tmp
, SBI_ICLK
);
7906 mutex_unlock(&dev_priv
->sb_lock
);
7909 /* Sequence to disable CLKOUT_DP */
7910 static void lpt_disable_clkout_dp(struct drm_i915_private
*dev_priv
)
7914 mutex_lock(&dev_priv
->sb_lock
);
7916 reg
= HAS_PCH_LPT_LP(dev_priv
) ? SBI_GEN0
: SBI_DBUFF0
;
7917 tmp
= intel_sbi_read(dev_priv
, reg
, SBI_ICLK
);
7918 tmp
&= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE
;
7919 intel_sbi_write(dev_priv
, reg
, tmp
, SBI_ICLK
);
7921 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
7922 if (!(tmp
& SBI_SSCCTL_DISABLE
)) {
7923 if (!(tmp
& SBI_SSCCTL_PATHALT
)) {
7924 tmp
|= SBI_SSCCTL_PATHALT
;
7925 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
7928 tmp
|= SBI_SSCCTL_DISABLE
;
7929 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
7932 mutex_unlock(&dev_priv
->sb_lock
);
7935 #define BEND_IDX(steps) ((50 + (steps)) / 5)
7937 static const uint16_t sscdivintphase
[] = {
7938 [BEND_IDX( 50)] = 0x3B23,
7939 [BEND_IDX( 45)] = 0x3B23,
7940 [BEND_IDX( 40)] = 0x3C23,
7941 [BEND_IDX( 35)] = 0x3C23,
7942 [BEND_IDX( 30)] = 0x3D23,
7943 [BEND_IDX( 25)] = 0x3D23,
7944 [BEND_IDX( 20)] = 0x3E23,
7945 [BEND_IDX( 15)] = 0x3E23,
7946 [BEND_IDX( 10)] = 0x3F23,
7947 [BEND_IDX( 5)] = 0x3F23,
7948 [BEND_IDX( 0)] = 0x0025,
7949 [BEND_IDX( -5)] = 0x0025,
7950 [BEND_IDX(-10)] = 0x0125,
7951 [BEND_IDX(-15)] = 0x0125,
7952 [BEND_IDX(-20)] = 0x0225,
7953 [BEND_IDX(-25)] = 0x0225,
7954 [BEND_IDX(-30)] = 0x0325,
7955 [BEND_IDX(-35)] = 0x0325,
7956 [BEND_IDX(-40)] = 0x0425,
7957 [BEND_IDX(-45)] = 0x0425,
7958 [BEND_IDX(-50)] = 0x0525,
7963 * steps -50 to 50 inclusive, in steps of 5
7964 * < 0 slow down the clock, > 0 speed up the clock, 0 == no bend (135MHz)
7965 * change in clock period = -(steps / 10) * 5.787 ps
7967 static void lpt_bend_clkout_dp(struct drm_i915_private
*dev_priv
, int steps
)
7970 int idx
= BEND_IDX(steps
);
7972 if (WARN_ON(steps
% 5 != 0))
7975 if (WARN_ON(idx
>= ARRAY_SIZE(sscdivintphase
)))
7978 mutex_lock(&dev_priv
->sb_lock
);
7980 if (steps
% 10 != 0)
7984 intel_sbi_write(dev_priv
, SBI_SSCDITHPHASE
, tmp
, SBI_ICLK
);
7986 tmp
= intel_sbi_read(dev_priv
, SBI_SSCDIVINTPHASE
, SBI_ICLK
);
7988 tmp
|= sscdivintphase
[idx
];
7989 intel_sbi_write(dev_priv
, SBI_SSCDIVINTPHASE
, tmp
, SBI_ICLK
);
7991 mutex_unlock(&dev_priv
->sb_lock
);
7996 static void lpt_init_pch_refclk(struct drm_i915_private
*dev_priv
)
7998 struct intel_encoder
*encoder
;
7999 bool has_vga
= false;
8001 for_each_intel_encoder(&dev_priv
->drm
, encoder
) {
8002 switch (encoder
->type
) {
8003 case INTEL_OUTPUT_ANALOG
:
8012 lpt_bend_clkout_dp(dev_priv
, 0);
8013 lpt_enable_clkout_dp(dev_priv
, true, true);
8015 lpt_disable_clkout_dp(dev_priv
);
8020 * Initialize reference clocks when the driver loads
8022 void intel_init_pch_refclk(struct drm_i915_private
*dev_priv
)
8024 if (HAS_PCH_IBX(dev_priv
) || HAS_PCH_CPT(dev_priv
))
8025 ironlake_init_pch_refclk(dev_priv
);
8026 else if (HAS_PCH_LPT(dev_priv
))
8027 lpt_init_pch_refclk(dev_priv
);
8030 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
)
8032 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
8033 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8034 int pipe
= intel_crtc
->pipe
;
8039 switch (intel_crtc
->config
->pipe_bpp
) {
8041 val
|= PIPECONF_6BPC
;
8044 val
|= PIPECONF_8BPC
;
8047 val
|= PIPECONF_10BPC
;
8050 val
|= PIPECONF_12BPC
;
8053 /* Case prevented by intel_choose_pipe_bpp_dither. */
8057 if (intel_crtc
->config
->dither
)
8058 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
8060 if (intel_crtc
->config
->base
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
8061 val
|= PIPECONF_INTERLACED_ILK
;
8063 val
|= PIPECONF_PROGRESSIVE
;
8065 if (intel_crtc
->config
->limited_color_range
)
8066 val
|= PIPECONF_COLOR_RANGE_SELECT
;
8068 I915_WRITE(PIPECONF(pipe
), val
);
8069 POSTING_READ(PIPECONF(pipe
));
8072 static void haswell_set_pipeconf(struct drm_crtc
*crtc
)
8074 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
8075 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8076 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
8079 if (IS_HASWELL(dev_priv
) && intel_crtc
->config
->dither
)
8080 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
8082 if (intel_crtc
->config
->base
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
8083 val
|= PIPECONF_INTERLACED_ILK
;
8085 val
|= PIPECONF_PROGRESSIVE
;
8087 I915_WRITE(PIPECONF(cpu_transcoder
), val
);
8088 POSTING_READ(PIPECONF(cpu_transcoder
));
8091 static void haswell_set_pipemisc(struct drm_crtc
*crtc
)
8093 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
8094 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8095 struct intel_crtc_state
*config
= intel_crtc
->config
;
8097 if (IS_BROADWELL(dev_priv
) || INTEL_INFO(dev_priv
)->gen
>= 9) {
8100 switch (intel_crtc
->config
->pipe_bpp
) {
8102 val
|= PIPEMISC_DITHER_6_BPC
;
8105 val
|= PIPEMISC_DITHER_8_BPC
;
8108 val
|= PIPEMISC_DITHER_10_BPC
;
8111 val
|= PIPEMISC_DITHER_12_BPC
;
8114 /* Case prevented by pipe_config_set_bpp. */
8118 if (intel_crtc
->config
->dither
)
8119 val
|= PIPEMISC_DITHER_ENABLE
| PIPEMISC_DITHER_TYPE_SP
;
8121 if (config
->ycbcr420
) {
8122 val
|= PIPEMISC_OUTPUT_COLORSPACE_YUV
|
8123 PIPEMISC_YUV420_ENABLE
|
8124 PIPEMISC_YUV420_MODE_FULL_BLEND
;
8127 I915_WRITE(PIPEMISC(intel_crtc
->pipe
), val
);
8131 int ironlake_get_lanes_required(int target_clock
, int link_bw
, int bpp
)
8134 * Account for spread spectrum to avoid
8135 * oversubscribing the link. Max center spread
8136 * is 2.5%; use 5% for safety's sake.
8138 u32 bps
= target_clock
* bpp
* 21 / 20;
8139 return DIV_ROUND_UP(bps
, link_bw
* 8);
8142 static bool ironlake_needs_fb_cb_tune(struct dpll
*dpll
, int factor
)
8144 return i9xx_dpll_compute_m(dpll
) < factor
* dpll
->n
;
8147 static void ironlake_compute_dpll(struct intel_crtc
*intel_crtc
,
8148 struct intel_crtc_state
*crtc_state
,
8149 struct dpll
*reduced_clock
)
8151 struct drm_crtc
*crtc
= &intel_crtc
->base
;
8152 struct drm_device
*dev
= crtc
->dev
;
8153 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8157 /* Enable autotuning of the PLL clock (if permissible) */
8159 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
8160 if ((intel_panel_use_ssc(dev_priv
) &&
8161 dev_priv
->vbt
.lvds_ssc_freq
== 100000) ||
8162 (HAS_PCH_IBX(dev_priv
) && intel_is_dual_link_lvds(dev
)))
8164 } else if (crtc_state
->sdvo_tv_clock
)
8167 fp
= i9xx_dpll_compute_fp(&crtc_state
->dpll
);
8169 if (ironlake_needs_fb_cb_tune(&crtc_state
->dpll
, factor
))
8172 if (reduced_clock
) {
8173 fp2
= i9xx_dpll_compute_fp(reduced_clock
);
8175 if (reduced_clock
->m
< factor
* reduced_clock
->n
)
8183 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
))
8184 dpll
|= DPLLB_MODE_LVDS
;
8186 dpll
|= DPLLB_MODE_DAC_SERIAL
;
8188 dpll
|= (crtc_state
->pixel_multiplier
- 1)
8189 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
;
8191 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_SDVO
) ||
8192 intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_HDMI
))
8193 dpll
|= DPLL_SDVO_HIGH_SPEED
;
8195 if (intel_crtc_has_dp_encoder(crtc_state
))
8196 dpll
|= DPLL_SDVO_HIGH_SPEED
;
8199 * The high speed IO clock is only really required for
8200 * SDVO/HDMI/DP, but we also enable it for CRT to make it
8201 * possible to share the DPLL between CRT and HDMI. Enabling
8202 * the clock needlessly does no real harm, except use up a
8203 * bit of power potentially.
8205 * We'll limit this to IVB with 3 pipes, since it has only two
8206 * DPLLs and so DPLL sharing is the only way to get three pipes
8207 * driving PCH ports at the same time. On SNB we could do this,
8208 * and potentially avoid enabling the second DPLL, but it's not
8209 * clear if it''s a win or loss power wise. No point in doing
8210 * this on ILK at all since it has a fixed DPLL<->pipe mapping.
8212 if (INTEL_INFO(dev_priv
)->num_pipes
== 3 &&
8213 intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_ANALOG
))
8214 dpll
|= DPLL_SDVO_HIGH_SPEED
;
8216 /* compute bitmask from p1 value */
8217 dpll
|= (1 << (crtc_state
->dpll
.p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
8219 dpll
|= (1 << (crtc_state
->dpll
.p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
8221 switch (crtc_state
->dpll
.p2
) {
8223 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
8226 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
8229 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
8232 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
8236 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
8237 intel_panel_use_ssc(dev_priv
))
8238 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
8240 dpll
|= PLL_REF_INPUT_DREFCLK
;
8242 dpll
|= DPLL_VCO_ENABLE
;
8244 crtc_state
->dpll_hw_state
.dpll
= dpll
;
8245 crtc_state
->dpll_hw_state
.fp0
= fp
;
8246 crtc_state
->dpll_hw_state
.fp1
= fp2
;
8249 static int ironlake_crtc_compute_clock(struct intel_crtc
*crtc
,
8250 struct intel_crtc_state
*crtc_state
)
8252 struct drm_device
*dev
= crtc
->base
.dev
;
8253 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8254 const struct intel_limit
*limit
;
8255 int refclk
= 120000;
8257 memset(&crtc_state
->dpll_hw_state
, 0,
8258 sizeof(crtc_state
->dpll_hw_state
));
8260 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
8261 if (!crtc_state
->has_pch_encoder
)
8264 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
8265 if (intel_panel_use_ssc(dev_priv
)) {
8266 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n",
8267 dev_priv
->vbt
.lvds_ssc_freq
);
8268 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
8271 if (intel_is_dual_link_lvds(dev
)) {
8272 if (refclk
== 100000)
8273 limit
= &intel_limits_ironlake_dual_lvds_100m
;
8275 limit
= &intel_limits_ironlake_dual_lvds
;
8277 if (refclk
== 100000)
8278 limit
= &intel_limits_ironlake_single_lvds_100m
;
8280 limit
= &intel_limits_ironlake_single_lvds
;
8283 limit
= &intel_limits_ironlake_dac
;
8286 if (!crtc_state
->clock_set
&&
8287 !g4x_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
8288 refclk
, NULL
, &crtc_state
->dpll
)) {
8289 DRM_ERROR("Couldn't find PLL settings for mode!\n");
8293 ironlake_compute_dpll(crtc
, crtc_state
, NULL
);
8295 if (!intel_get_shared_dpll(crtc
, crtc_state
, NULL
)) {
8296 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
8297 pipe_name(crtc
->pipe
));
8304 static void intel_pch_transcoder_get_m_n(struct intel_crtc
*crtc
,
8305 struct intel_link_m_n
*m_n
)
8307 struct drm_device
*dev
= crtc
->base
.dev
;
8308 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8309 enum pipe pipe
= crtc
->pipe
;
8311 m_n
->link_m
= I915_READ(PCH_TRANS_LINK_M1(pipe
));
8312 m_n
->link_n
= I915_READ(PCH_TRANS_LINK_N1(pipe
));
8313 m_n
->gmch_m
= I915_READ(PCH_TRANS_DATA_M1(pipe
))
8315 m_n
->gmch_n
= I915_READ(PCH_TRANS_DATA_N1(pipe
));
8316 m_n
->tu
= ((I915_READ(PCH_TRANS_DATA_M1(pipe
))
8317 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
8320 static void intel_cpu_transcoder_get_m_n(struct intel_crtc
*crtc
,
8321 enum transcoder transcoder
,
8322 struct intel_link_m_n
*m_n
,
8323 struct intel_link_m_n
*m2_n2
)
8325 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
8326 enum pipe pipe
= crtc
->pipe
;
8328 if (INTEL_GEN(dev_priv
) >= 5) {
8329 m_n
->link_m
= I915_READ(PIPE_LINK_M1(transcoder
));
8330 m_n
->link_n
= I915_READ(PIPE_LINK_N1(transcoder
));
8331 m_n
->gmch_m
= I915_READ(PIPE_DATA_M1(transcoder
))
8333 m_n
->gmch_n
= I915_READ(PIPE_DATA_N1(transcoder
));
8334 m_n
->tu
= ((I915_READ(PIPE_DATA_M1(transcoder
))
8335 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
8336 /* Read M2_N2 registers only for gen < 8 (M2_N2 available for
8337 * gen < 8) and if DRRS is supported (to make sure the
8338 * registers are not unnecessarily read).
8340 if (m2_n2
&& INTEL_GEN(dev_priv
) < 8 &&
8341 crtc
->config
->has_drrs
) {
8342 m2_n2
->link_m
= I915_READ(PIPE_LINK_M2(transcoder
));
8343 m2_n2
->link_n
= I915_READ(PIPE_LINK_N2(transcoder
));
8344 m2_n2
->gmch_m
= I915_READ(PIPE_DATA_M2(transcoder
))
8346 m2_n2
->gmch_n
= I915_READ(PIPE_DATA_N2(transcoder
));
8347 m2_n2
->tu
= ((I915_READ(PIPE_DATA_M2(transcoder
))
8348 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
8351 m_n
->link_m
= I915_READ(PIPE_LINK_M_G4X(pipe
));
8352 m_n
->link_n
= I915_READ(PIPE_LINK_N_G4X(pipe
));
8353 m_n
->gmch_m
= I915_READ(PIPE_DATA_M_G4X(pipe
))
8355 m_n
->gmch_n
= I915_READ(PIPE_DATA_N_G4X(pipe
));
8356 m_n
->tu
= ((I915_READ(PIPE_DATA_M_G4X(pipe
))
8357 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
8361 void intel_dp_get_m_n(struct intel_crtc
*crtc
,
8362 struct intel_crtc_state
*pipe_config
)
8364 if (pipe_config
->has_pch_encoder
)
8365 intel_pch_transcoder_get_m_n(crtc
, &pipe_config
->dp_m_n
);
8367 intel_cpu_transcoder_get_m_n(crtc
, pipe_config
->cpu_transcoder
,
8368 &pipe_config
->dp_m_n
,
8369 &pipe_config
->dp_m2_n2
);
8372 static void ironlake_get_fdi_m_n_config(struct intel_crtc
*crtc
,
8373 struct intel_crtc_state
*pipe_config
)
8375 intel_cpu_transcoder_get_m_n(crtc
, pipe_config
->cpu_transcoder
,
8376 &pipe_config
->fdi_m_n
, NULL
);
8379 static void skylake_get_pfit_config(struct intel_crtc
*crtc
,
8380 struct intel_crtc_state
*pipe_config
)
8382 struct drm_device
*dev
= crtc
->base
.dev
;
8383 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8384 struct intel_crtc_scaler_state
*scaler_state
= &pipe_config
->scaler_state
;
8385 uint32_t ps_ctrl
= 0;
8389 /* find scaler attached to this pipe */
8390 for (i
= 0; i
< crtc
->num_scalers
; i
++) {
8391 ps_ctrl
= I915_READ(SKL_PS_CTRL(crtc
->pipe
, i
));
8392 if (ps_ctrl
& PS_SCALER_EN
&& !(ps_ctrl
& PS_PLANE_SEL_MASK
)) {
8394 pipe_config
->pch_pfit
.enabled
= true;
8395 pipe_config
->pch_pfit
.pos
= I915_READ(SKL_PS_WIN_POS(crtc
->pipe
, i
));
8396 pipe_config
->pch_pfit
.size
= I915_READ(SKL_PS_WIN_SZ(crtc
->pipe
, i
));
8401 scaler_state
->scaler_id
= id
;
8403 scaler_state
->scaler_users
|= (1 << SKL_CRTC_INDEX
);
8405 scaler_state
->scaler_users
&= ~(1 << SKL_CRTC_INDEX
);
8410 skylake_get_initial_plane_config(struct intel_crtc
*crtc
,
8411 struct intel_initial_plane_config
*plane_config
)
8413 struct drm_device
*dev
= crtc
->base
.dev
;
8414 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8415 u32 val
, base
, offset
, stride_mult
, tiling
;
8416 int pipe
= crtc
->pipe
;
8417 int fourcc
, pixel_format
;
8418 unsigned int aligned_height
;
8419 struct drm_framebuffer
*fb
;
8420 struct intel_framebuffer
*intel_fb
;
8422 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
8424 DRM_DEBUG_KMS("failed to alloc fb\n");
8428 fb
= &intel_fb
->base
;
8432 val
= I915_READ(PLANE_CTL(pipe
, 0));
8433 if (!(val
& PLANE_CTL_ENABLE
))
8436 pixel_format
= val
& PLANE_CTL_FORMAT_MASK
;
8437 fourcc
= skl_format_to_fourcc(pixel_format
,
8438 val
& PLANE_CTL_ORDER_RGBX
,
8439 val
& PLANE_CTL_ALPHA_MASK
);
8440 fb
->format
= drm_format_info(fourcc
);
8442 tiling
= val
& PLANE_CTL_TILED_MASK
;
8444 case PLANE_CTL_TILED_LINEAR
:
8445 fb
->modifier
= DRM_FORMAT_MOD_LINEAR
;
8447 case PLANE_CTL_TILED_X
:
8448 plane_config
->tiling
= I915_TILING_X
;
8449 fb
->modifier
= I915_FORMAT_MOD_X_TILED
;
8451 case PLANE_CTL_TILED_Y
:
8452 if (val
& PLANE_CTL_DECOMPRESSION_ENABLE
)
8453 fb
->modifier
= I915_FORMAT_MOD_Y_TILED_CCS
;
8455 fb
->modifier
= I915_FORMAT_MOD_Y_TILED
;
8457 case PLANE_CTL_TILED_YF
:
8458 if (val
& PLANE_CTL_DECOMPRESSION_ENABLE
)
8459 fb
->modifier
= I915_FORMAT_MOD_Yf_TILED_CCS
;
8461 fb
->modifier
= I915_FORMAT_MOD_Yf_TILED
;
8464 MISSING_CASE(tiling
);
8468 base
= I915_READ(PLANE_SURF(pipe
, 0)) & 0xfffff000;
8469 plane_config
->base
= base
;
8471 offset
= I915_READ(PLANE_OFFSET(pipe
, 0));
8473 val
= I915_READ(PLANE_SIZE(pipe
, 0));
8474 fb
->height
= ((val
>> 16) & 0xfff) + 1;
8475 fb
->width
= ((val
>> 0) & 0x1fff) + 1;
8477 val
= I915_READ(PLANE_STRIDE(pipe
, 0));
8478 stride_mult
= intel_fb_stride_alignment(fb
, 0);
8479 fb
->pitches
[0] = (val
& 0x3ff) * stride_mult
;
8481 aligned_height
= intel_fb_align_height(fb
, 0, fb
->height
);
8483 plane_config
->size
= fb
->pitches
[0] * aligned_height
;
8485 DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
8486 pipe_name(pipe
), fb
->width
, fb
->height
,
8487 fb
->format
->cpp
[0] * 8, base
, fb
->pitches
[0],
8488 plane_config
->size
);
8490 plane_config
->fb
= intel_fb
;
8497 static void ironlake_get_pfit_config(struct intel_crtc
*crtc
,
8498 struct intel_crtc_state
*pipe_config
)
8500 struct drm_device
*dev
= crtc
->base
.dev
;
8501 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8504 tmp
= I915_READ(PF_CTL(crtc
->pipe
));
8506 if (tmp
& PF_ENABLE
) {
8507 pipe_config
->pch_pfit
.enabled
= true;
8508 pipe_config
->pch_pfit
.pos
= I915_READ(PF_WIN_POS(crtc
->pipe
));
8509 pipe_config
->pch_pfit
.size
= I915_READ(PF_WIN_SZ(crtc
->pipe
));
8511 /* We currently do not free assignements of panel fitters on
8512 * ivb/hsw (since we don't use the higher upscaling modes which
8513 * differentiates them) so just WARN about this case for now. */
8514 if (IS_GEN7(dev_priv
)) {
8515 WARN_ON((tmp
& PF_PIPE_SEL_MASK_IVB
) !=
8516 PF_PIPE_SEL_IVB(crtc
->pipe
));
8522 ironlake_get_initial_plane_config(struct intel_crtc
*crtc
,
8523 struct intel_initial_plane_config
*plane_config
)
8525 struct drm_device
*dev
= crtc
->base
.dev
;
8526 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8527 u32 val
, base
, offset
;
8528 int pipe
= crtc
->pipe
;
8529 int fourcc
, pixel_format
;
8530 unsigned int aligned_height
;
8531 struct drm_framebuffer
*fb
;
8532 struct intel_framebuffer
*intel_fb
;
8534 val
= I915_READ(DSPCNTR(pipe
));
8535 if (!(val
& DISPLAY_PLANE_ENABLE
))
8538 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
8540 DRM_DEBUG_KMS("failed to alloc fb\n");
8544 fb
= &intel_fb
->base
;
8548 if (INTEL_GEN(dev_priv
) >= 4) {
8549 if (val
& DISPPLANE_TILED
) {
8550 plane_config
->tiling
= I915_TILING_X
;
8551 fb
->modifier
= I915_FORMAT_MOD_X_TILED
;
8555 pixel_format
= val
& DISPPLANE_PIXFORMAT_MASK
;
8556 fourcc
= i9xx_format_to_fourcc(pixel_format
);
8557 fb
->format
= drm_format_info(fourcc
);
8559 base
= I915_READ(DSPSURF(pipe
)) & 0xfffff000;
8560 if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
)) {
8561 offset
= I915_READ(DSPOFFSET(pipe
));
8563 if (plane_config
->tiling
)
8564 offset
= I915_READ(DSPTILEOFF(pipe
));
8566 offset
= I915_READ(DSPLINOFF(pipe
));
8568 plane_config
->base
= base
;
8570 val
= I915_READ(PIPESRC(pipe
));
8571 fb
->width
= ((val
>> 16) & 0xfff) + 1;
8572 fb
->height
= ((val
>> 0) & 0xfff) + 1;
8574 val
= I915_READ(DSPSTRIDE(pipe
));
8575 fb
->pitches
[0] = val
& 0xffffffc0;
8577 aligned_height
= intel_fb_align_height(fb
, 0, fb
->height
);
8579 plane_config
->size
= fb
->pitches
[0] * aligned_height
;
8581 DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
8582 pipe_name(pipe
), fb
->width
, fb
->height
,
8583 fb
->format
->cpp
[0] * 8, base
, fb
->pitches
[0],
8584 plane_config
->size
);
8586 plane_config
->fb
= intel_fb
;
8589 static bool ironlake_get_pipe_config(struct intel_crtc
*crtc
,
8590 struct intel_crtc_state
*pipe_config
)
8592 struct drm_device
*dev
= crtc
->base
.dev
;
8593 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8594 enum intel_display_power_domain power_domain
;
8598 power_domain
= POWER_DOMAIN_PIPE(crtc
->pipe
);
8599 if (!intel_display_power_get_if_enabled(dev_priv
, power_domain
))
8602 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
8603 pipe_config
->shared_dpll
= NULL
;
8606 tmp
= I915_READ(PIPECONF(crtc
->pipe
));
8607 if (!(tmp
& PIPECONF_ENABLE
))
8610 switch (tmp
& PIPECONF_BPC_MASK
) {
8612 pipe_config
->pipe_bpp
= 18;
8615 pipe_config
->pipe_bpp
= 24;
8617 case PIPECONF_10BPC
:
8618 pipe_config
->pipe_bpp
= 30;
8620 case PIPECONF_12BPC
:
8621 pipe_config
->pipe_bpp
= 36;
8627 if (tmp
& PIPECONF_COLOR_RANGE_SELECT
)
8628 pipe_config
->limited_color_range
= true;
8630 if (I915_READ(PCH_TRANSCONF(crtc
->pipe
)) & TRANS_ENABLE
) {
8631 struct intel_shared_dpll
*pll
;
8632 enum intel_dpll_id pll_id
;
8634 pipe_config
->has_pch_encoder
= true;
8636 tmp
= I915_READ(FDI_RX_CTL(crtc
->pipe
));
8637 pipe_config
->fdi_lanes
= ((FDI_DP_PORT_WIDTH_MASK
& tmp
) >>
8638 FDI_DP_PORT_WIDTH_SHIFT
) + 1;
8640 ironlake_get_fdi_m_n_config(crtc
, pipe_config
);
8642 if (HAS_PCH_IBX(dev_priv
)) {
8644 * The pipe->pch transcoder and pch transcoder->pll
8647 pll_id
= (enum intel_dpll_id
) crtc
->pipe
;
8649 tmp
= I915_READ(PCH_DPLL_SEL
);
8650 if (tmp
& TRANS_DPLLB_SEL(crtc
->pipe
))
8651 pll_id
= DPLL_ID_PCH_PLL_B
;
8653 pll_id
= DPLL_ID_PCH_PLL_A
;
8656 pipe_config
->shared_dpll
=
8657 intel_get_shared_dpll_by_id(dev_priv
, pll_id
);
8658 pll
= pipe_config
->shared_dpll
;
8660 WARN_ON(!pll
->funcs
.get_hw_state(dev_priv
, pll
,
8661 &pipe_config
->dpll_hw_state
));
8663 tmp
= pipe_config
->dpll_hw_state
.dpll
;
8664 pipe_config
->pixel_multiplier
=
8665 ((tmp
& PLL_REF_SDVO_HDMI_MULTIPLIER_MASK
)
8666 >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
) + 1;
8668 ironlake_pch_clock_get(crtc
, pipe_config
);
8670 pipe_config
->pixel_multiplier
= 1;
8673 intel_get_pipe_timings(crtc
, pipe_config
);
8674 intel_get_pipe_src_size(crtc
, pipe_config
);
8676 ironlake_get_pfit_config(crtc
, pipe_config
);
8681 intel_display_power_put(dev_priv
, power_domain
);
8686 static void assert_can_disable_lcpll(struct drm_i915_private
*dev_priv
)
8688 struct drm_device
*dev
= &dev_priv
->drm
;
8689 struct intel_crtc
*crtc
;
8691 for_each_intel_crtc(dev
, crtc
)
8692 I915_STATE_WARN(crtc
->active
, "CRTC for pipe %c enabled\n",
8693 pipe_name(crtc
->pipe
));
8695 I915_STATE_WARN(I915_READ(HSW_PWR_WELL_CTL_DRIVER(HSW_DISP_PW_GLOBAL
)),
8696 "Display power well on\n");
8697 I915_STATE_WARN(I915_READ(SPLL_CTL
) & SPLL_PLL_ENABLE
, "SPLL enabled\n");
8698 I915_STATE_WARN(I915_READ(WRPLL_CTL(0)) & WRPLL_PLL_ENABLE
, "WRPLL1 enabled\n");
8699 I915_STATE_WARN(I915_READ(WRPLL_CTL(1)) & WRPLL_PLL_ENABLE
, "WRPLL2 enabled\n");
8700 I915_STATE_WARN(I915_READ(PP_STATUS(0)) & PP_ON
, "Panel power on\n");
8701 I915_STATE_WARN(I915_READ(BLC_PWM_CPU_CTL2
) & BLM_PWM_ENABLE
,
8702 "CPU PWM1 enabled\n");
8703 if (IS_HASWELL(dev_priv
))
8704 I915_STATE_WARN(I915_READ(HSW_BLC_PWM2_CTL
) & BLM_PWM_ENABLE
,
8705 "CPU PWM2 enabled\n");
8706 I915_STATE_WARN(I915_READ(BLC_PWM_PCH_CTL1
) & BLM_PCH_PWM_ENABLE
,
8707 "PCH PWM1 enabled\n");
8708 I915_STATE_WARN(I915_READ(UTIL_PIN_CTL
) & UTIL_PIN_ENABLE
,
8709 "Utility pin enabled\n");
8710 I915_STATE_WARN(I915_READ(PCH_GTC_CTL
) & PCH_GTC_ENABLE
, "PCH GTC enabled\n");
8713 * In theory we can still leave IRQs enabled, as long as only the HPD
8714 * interrupts remain enabled. We used to check for that, but since it's
8715 * gen-specific and since we only disable LCPLL after we fully disable
8716 * the interrupts, the check below should be enough.
8718 I915_STATE_WARN(intel_irqs_enabled(dev_priv
), "IRQs enabled\n");
8721 static uint32_t hsw_read_dcomp(struct drm_i915_private
*dev_priv
)
8723 if (IS_HASWELL(dev_priv
))
8724 return I915_READ(D_COMP_HSW
);
8726 return I915_READ(D_COMP_BDW
);
8729 static void hsw_write_dcomp(struct drm_i915_private
*dev_priv
, uint32_t val
)
8731 if (IS_HASWELL(dev_priv
)) {
8732 mutex_lock(&dev_priv
->pcu_lock
);
8733 if (sandybridge_pcode_write(dev_priv
, GEN6_PCODE_WRITE_D_COMP
,
8735 DRM_DEBUG_KMS("Failed to write to D_COMP\n");
8736 mutex_unlock(&dev_priv
->pcu_lock
);
8738 I915_WRITE(D_COMP_BDW
, val
);
8739 POSTING_READ(D_COMP_BDW
);
8744 * This function implements pieces of two sequences from BSpec:
8745 * - Sequence for display software to disable LCPLL
8746 * - Sequence for display software to allow package C8+
8747 * The steps implemented here are just the steps that actually touch the LCPLL
8748 * register. Callers should take care of disabling all the display engine
8749 * functions, doing the mode unset, fixing interrupts, etc.
8751 static void hsw_disable_lcpll(struct drm_i915_private
*dev_priv
,
8752 bool switch_to_fclk
, bool allow_power_down
)
8756 assert_can_disable_lcpll(dev_priv
);
8758 val
= I915_READ(LCPLL_CTL
);
8760 if (switch_to_fclk
) {
8761 val
|= LCPLL_CD_SOURCE_FCLK
;
8762 I915_WRITE(LCPLL_CTL
, val
);
8764 if (wait_for_us(I915_READ(LCPLL_CTL
) &
8765 LCPLL_CD_SOURCE_FCLK_DONE
, 1))
8766 DRM_ERROR("Switching to FCLK failed\n");
8768 val
= I915_READ(LCPLL_CTL
);
8771 val
|= LCPLL_PLL_DISABLE
;
8772 I915_WRITE(LCPLL_CTL
, val
);
8773 POSTING_READ(LCPLL_CTL
);
8775 if (intel_wait_for_register(dev_priv
, LCPLL_CTL
, LCPLL_PLL_LOCK
, 0, 1))
8776 DRM_ERROR("LCPLL still locked\n");
8778 val
= hsw_read_dcomp(dev_priv
);
8779 val
|= D_COMP_COMP_DISABLE
;
8780 hsw_write_dcomp(dev_priv
, val
);
8783 if (wait_for((hsw_read_dcomp(dev_priv
) & D_COMP_RCOMP_IN_PROGRESS
) == 0,
8785 DRM_ERROR("D_COMP RCOMP still in progress\n");
8787 if (allow_power_down
) {
8788 val
= I915_READ(LCPLL_CTL
);
8789 val
|= LCPLL_POWER_DOWN_ALLOW
;
8790 I915_WRITE(LCPLL_CTL
, val
);
8791 POSTING_READ(LCPLL_CTL
);
8796 * Fully restores LCPLL, disallowing power down and switching back to LCPLL
8799 static void hsw_restore_lcpll(struct drm_i915_private
*dev_priv
)
8803 val
= I915_READ(LCPLL_CTL
);
8805 if ((val
& (LCPLL_PLL_LOCK
| LCPLL_PLL_DISABLE
| LCPLL_CD_SOURCE_FCLK
|
8806 LCPLL_POWER_DOWN_ALLOW
)) == LCPLL_PLL_LOCK
)
8810 * Make sure we're not on PC8 state before disabling PC8, otherwise
8811 * we'll hang the machine. To prevent PC8 state, just enable force_wake.
8813 intel_uncore_forcewake_get(dev_priv
, FORCEWAKE_ALL
);
8815 if (val
& LCPLL_POWER_DOWN_ALLOW
) {
8816 val
&= ~LCPLL_POWER_DOWN_ALLOW
;
8817 I915_WRITE(LCPLL_CTL
, val
);
8818 POSTING_READ(LCPLL_CTL
);
8821 val
= hsw_read_dcomp(dev_priv
);
8822 val
|= D_COMP_COMP_FORCE
;
8823 val
&= ~D_COMP_COMP_DISABLE
;
8824 hsw_write_dcomp(dev_priv
, val
);
8826 val
= I915_READ(LCPLL_CTL
);
8827 val
&= ~LCPLL_PLL_DISABLE
;
8828 I915_WRITE(LCPLL_CTL
, val
);
8830 if (intel_wait_for_register(dev_priv
,
8831 LCPLL_CTL
, LCPLL_PLL_LOCK
, LCPLL_PLL_LOCK
,
8833 DRM_ERROR("LCPLL not locked yet\n");
8835 if (val
& LCPLL_CD_SOURCE_FCLK
) {
8836 val
= I915_READ(LCPLL_CTL
);
8837 val
&= ~LCPLL_CD_SOURCE_FCLK
;
8838 I915_WRITE(LCPLL_CTL
, val
);
8840 if (wait_for_us((I915_READ(LCPLL_CTL
) &
8841 LCPLL_CD_SOURCE_FCLK_DONE
) == 0, 1))
8842 DRM_ERROR("Switching back to LCPLL failed\n");
8845 intel_uncore_forcewake_put(dev_priv
, FORCEWAKE_ALL
);
8846 intel_update_cdclk(dev_priv
);
8850 * Package states C8 and deeper are really deep PC states that can only be
8851 * reached when all the devices on the system allow it, so even if the graphics
8852 * device allows PC8+, it doesn't mean the system will actually get to these
8853 * states. Our driver only allows PC8+ when going into runtime PM.
8855 * The requirements for PC8+ are that all the outputs are disabled, the power
8856 * well is disabled and most interrupts are disabled, and these are also
8857 * requirements for runtime PM. When these conditions are met, we manually do
8858 * the other conditions: disable the interrupts, clocks and switch LCPLL refclk
8859 * to Fclk. If we're in PC8+ and we get an non-hotplug interrupt, we can hard
8862 * When we really reach PC8 or deeper states (not just when we allow it) we lose
8863 * the state of some registers, so when we come back from PC8+ we need to
8864 * restore this state. We don't get into PC8+ if we're not in RC6, so we don't
8865 * need to take care of the registers kept by RC6. Notice that this happens even
8866 * if we don't put the device in PCI D3 state (which is what currently happens
8867 * because of the runtime PM support).
8869 * For more, read "Display Sequences for Package C8" on the hardware
8872 void hsw_enable_pc8(struct drm_i915_private
*dev_priv
)
8876 DRM_DEBUG_KMS("Enabling package C8+\n");
8878 if (HAS_PCH_LPT_LP(dev_priv
)) {
8879 val
= I915_READ(SOUTH_DSPCLK_GATE_D
);
8880 val
&= ~PCH_LP_PARTITION_LEVEL_DISABLE
;
8881 I915_WRITE(SOUTH_DSPCLK_GATE_D
, val
);
8884 lpt_disable_clkout_dp(dev_priv
);
8885 hsw_disable_lcpll(dev_priv
, true, true);
8888 void hsw_disable_pc8(struct drm_i915_private
*dev_priv
)
8892 DRM_DEBUG_KMS("Disabling package C8+\n");
8894 hsw_restore_lcpll(dev_priv
);
8895 lpt_init_pch_refclk(dev_priv
);
8897 if (HAS_PCH_LPT_LP(dev_priv
)) {
8898 val
= I915_READ(SOUTH_DSPCLK_GATE_D
);
8899 val
|= PCH_LP_PARTITION_LEVEL_DISABLE
;
8900 I915_WRITE(SOUTH_DSPCLK_GATE_D
, val
);
8904 static int haswell_crtc_compute_clock(struct intel_crtc
*crtc
,
8905 struct intel_crtc_state
*crtc_state
)
8907 if (!intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_DSI
)) {
8908 struct intel_encoder
*encoder
=
8909 intel_ddi_get_crtc_new_encoder(crtc_state
);
8911 if (!intel_get_shared_dpll(crtc
, crtc_state
, encoder
)) {
8912 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
8913 pipe_name(crtc
->pipe
));
8921 static void cannonlake_get_ddi_pll(struct drm_i915_private
*dev_priv
,
8923 struct intel_crtc_state
*pipe_config
)
8925 enum intel_dpll_id id
;
8928 temp
= I915_READ(DPCLKA_CFGCR0
) & DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(port
);
8929 id
= temp
>> DPCLKA_CFGCR0_DDI_CLK_SEL_SHIFT(port
);
8931 if (WARN_ON(id
< SKL_DPLL0
|| id
> SKL_DPLL2
))
8934 pipe_config
->shared_dpll
= intel_get_shared_dpll_by_id(dev_priv
, id
);
8937 static void bxt_get_ddi_pll(struct drm_i915_private
*dev_priv
,
8939 struct intel_crtc_state
*pipe_config
)
8941 enum intel_dpll_id id
;
8945 id
= DPLL_ID_SKL_DPLL0
;
8948 id
= DPLL_ID_SKL_DPLL1
;
8951 id
= DPLL_ID_SKL_DPLL2
;
8954 DRM_ERROR("Incorrect port type\n");
8958 pipe_config
->shared_dpll
= intel_get_shared_dpll_by_id(dev_priv
, id
);
8961 static void skylake_get_ddi_pll(struct drm_i915_private
*dev_priv
,
8963 struct intel_crtc_state
*pipe_config
)
8965 enum intel_dpll_id id
;
8968 temp
= I915_READ(DPLL_CTRL2
) & DPLL_CTRL2_DDI_CLK_SEL_MASK(port
);
8969 id
= temp
>> (port
* 3 + 1);
8971 if (WARN_ON(id
< SKL_DPLL0
|| id
> SKL_DPLL3
))
8974 pipe_config
->shared_dpll
= intel_get_shared_dpll_by_id(dev_priv
, id
);
8977 static void haswell_get_ddi_pll(struct drm_i915_private
*dev_priv
,
8979 struct intel_crtc_state
*pipe_config
)
8981 enum intel_dpll_id id
;
8982 uint32_t ddi_pll_sel
= I915_READ(PORT_CLK_SEL(port
));
8984 switch (ddi_pll_sel
) {
8985 case PORT_CLK_SEL_WRPLL1
:
8986 id
= DPLL_ID_WRPLL1
;
8988 case PORT_CLK_SEL_WRPLL2
:
8989 id
= DPLL_ID_WRPLL2
;
8991 case PORT_CLK_SEL_SPLL
:
8994 case PORT_CLK_SEL_LCPLL_810
:
8995 id
= DPLL_ID_LCPLL_810
;
8997 case PORT_CLK_SEL_LCPLL_1350
:
8998 id
= DPLL_ID_LCPLL_1350
;
9000 case PORT_CLK_SEL_LCPLL_2700
:
9001 id
= DPLL_ID_LCPLL_2700
;
9004 MISSING_CASE(ddi_pll_sel
);
9006 case PORT_CLK_SEL_NONE
:
9010 pipe_config
->shared_dpll
= intel_get_shared_dpll_by_id(dev_priv
, id
);
9013 static bool hsw_get_transcoder_state(struct intel_crtc
*crtc
,
9014 struct intel_crtc_state
*pipe_config
,
9015 u64
*power_domain_mask
)
9017 struct drm_device
*dev
= crtc
->base
.dev
;
9018 struct drm_i915_private
*dev_priv
= to_i915(dev
);
9019 enum intel_display_power_domain power_domain
;
9023 * The pipe->transcoder mapping is fixed with the exception of the eDP
9024 * transcoder handled below.
9026 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
9029 * XXX: Do intel_display_power_get_if_enabled before reading this (for
9030 * consistency and less surprising code; it's in always on power).
9032 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP
));
9033 if (tmp
& TRANS_DDI_FUNC_ENABLE
) {
9034 enum pipe trans_edp_pipe
;
9035 switch (tmp
& TRANS_DDI_EDP_INPUT_MASK
) {
9037 WARN(1, "unknown pipe linked to edp transcoder\n");
9038 case TRANS_DDI_EDP_INPUT_A_ONOFF
:
9039 case TRANS_DDI_EDP_INPUT_A_ON
:
9040 trans_edp_pipe
= PIPE_A
;
9042 case TRANS_DDI_EDP_INPUT_B_ONOFF
:
9043 trans_edp_pipe
= PIPE_B
;
9045 case TRANS_DDI_EDP_INPUT_C_ONOFF
:
9046 trans_edp_pipe
= PIPE_C
;
9050 if (trans_edp_pipe
== crtc
->pipe
)
9051 pipe_config
->cpu_transcoder
= TRANSCODER_EDP
;
9054 power_domain
= POWER_DOMAIN_TRANSCODER(pipe_config
->cpu_transcoder
);
9055 if (!intel_display_power_get_if_enabled(dev_priv
, power_domain
))
9057 *power_domain_mask
|= BIT_ULL(power_domain
);
9059 tmp
= I915_READ(PIPECONF(pipe_config
->cpu_transcoder
));
9061 return tmp
& PIPECONF_ENABLE
;
9064 static bool bxt_get_dsi_transcoder_state(struct intel_crtc
*crtc
,
9065 struct intel_crtc_state
*pipe_config
,
9066 u64
*power_domain_mask
)
9068 struct drm_device
*dev
= crtc
->base
.dev
;
9069 struct drm_i915_private
*dev_priv
= to_i915(dev
);
9070 enum intel_display_power_domain power_domain
;
9072 enum transcoder cpu_transcoder
;
9075 for_each_port_masked(port
, BIT(PORT_A
) | BIT(PORT_C
)) {
9077 cpu_transcoder
= TRANSCODER_DSI_A
;
9079 cpu_transcoder
= TRANSCODER_DSI_C
;
9081 power_domain
= POWER_DOMAIN_TRANSCODER(cpu_transcoder
);
9082 if (!intel_display_power_get_if_enabled(dev_priv
, power_domain
))
9084 *power_domain_mask
|= BIT_ULL(power_domain
);
9087 * The PLL needs to be enabled with a valid divider
9088 * configuration, otherwise accessing DSI registers will hang
9089 * the machine. See BSpec North Display Engine
9090 * registers/MIPI[BXT]. We can break out here early, since we
9091 * need the same DSI PLL to be enabled for both DSI ports.
9093 if (!intel_dsi_pll_is_enabled(dev_priv
))
9096 /* XXX: this works for video mode only */
9097 tmp
= I915_READ(BXT_MIPI_PORT_CTRL(port
));
9098 if (!(tmp
& DPI_ENABLE
))
9101 tmp
= I915_READ(MIPI_CTRL(port
));
9102 if ((tmp
& BXT_PIPE_SELECT_MASK
) != BXT_PIPE_SELECT(crtc
->pipe
))
9105 pipe_config
->cpu_transcoder
= cpu_transcoder
;
9109 return transcoder_is_dsi(pipe_config
->cpu_transcoder
);
9112 static void haswell_get_ddi_port_state(struct intel_crtc
*crtc
,
9113 struct intel_crtc_state
*pipe_config
)
9115 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
9116 struct intel_shared_dpll
*pll
;
9120 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(pipe_config
->cpu_transcoder
));
9122 port
= (tmp
& TRANS_DDI_PORT_MASK
) >> TRANS_DDI_PORT_SHIFT
;
9124 if (IS_CANNONLAKE(dev_priv
))
9125 cannonlake_get_ddi_pll(dev_priv
, port
, pipe_config
);
9126 else if (IS_GEN9_BC(dev_priv
))
9127 skylake_get_ddi_pll(dev_priv
, port
, pipe_config
);
9128 else if (IS_GEN9_LP(dev_priv
))
9129 bxt_get_ddi_pll(dev_priv
, port
, pipe_config
);
9131 haswell_get_ddi_pll(dev_priv
, port
, pipe_config
);
9133 pll
= pipe_config
->shared_dpll
;
9135 WARN_ON(!pll
->funcs
.get_hw_state(dev_priv
, pll
,
9136 &pipe_config
->dpll_hw_state
));
9140 * Haswell has only FDI/PCH transcoder A. It is which is connected to
9141 * DDI E. So just check whether this pipe is wired to DDI E and whether
9142 * the PCH transcoder is on.
9144 if (INTEL_GEN(dev_priv
) < 9 &&
9145 (port
== PORT_E
) && I915_READ(LPT_TRANSCONF
) & TRANS_ENABLE
) {
9146 pipe_config
->has_pch_encoder
= true;
9148 tmp
= I915_READ(FDI_RX_CTL(PIPE_A
));
9149 pipe_config
->fdi_lanes
= ((FDI_DP_PORT_WIDTH_MASK
& tmp
) >>
9150 FDI_DP_PORT_WIDTH_SHIFT
) + 1;
9152 ironlake_get_fdi_m_n_config(crtc
, pipe_config
);
9156 static bool haswell_get_pipe_config(struct intel_crtc
*crtc
,
9157 struct intel_crtc_state
*pipe_config
)
9159 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
9160 enum intel_display_power_domain power_domain
;
9161 u64 power_domain_mask
;
9164 intel_crtc_init_scalers(crtc
, pipe_config
);
9166 power_domain
= POWER_DOMAIN_PIPE(crtc
->pipe
);
9167 if (!intel_display_power_get_if_enabled(dev_priv
, power_domain
))
9169 power_domain_mask
= BIT_ULL(power_domain
);
9171 pipe_config
->shared_dpll
= NULL
;
9173 active
= hsw_get_transcoder_state(crtc
, pipe_config
, &power_domain_mask
);
9175 if (IS_GEN9_LP(dev_priv
) &&
9176 bxt_get_dsi_transcoder_state(crtc
, pipe_config
, &power_domain_mask
)) {
9184 if (!transcoder_is_dsi(pipe_config
->cpu_transcoder
)) {
9185 haswell_get_ddi_port_state(crtc
, pipe_config
);
9186 intel_get_pipe_timings(crtc
, pipe_config
);
9189 intel_get_pipe_src_size(crtc
, pipe_config
);
9191 pipe_config
->gamma_mode
=
9192 I915_READ(GAMMA_MODE(crtc
->pipe
)) & GAMMA_MODE_MODE_MASK
;
9194 if (IS_BROADWELL(dev_priv
) || INTEL_GEN(dev_priv
) >= 9) {
9195 u32 tmp
= I915_READ(PIPEMISC(crtc
->pipe
));
9196 bool clrspace_yuv
= tmp
& PIPEMISC_OUTPUT_COLORSPACE_YUV
;
9198 if (IS_GEMINILAKE(dev_priv
) || INTEL_GEN(dev_priv
) >= 10) {
9199 bool blend_mode_420
= tmp
&
9200 PIPEMISC_YUV420_MODE_FULL_BLEND
;
9202 pipe_config
->ycbcr420
= tmp
& PIPEMISC_YUV420_ENABLE
;
9203 if (pipe_config
->ycbcr420
!= clrspace_yuv
||
9204 pipe_config
->ycbcr420
!= blend_mode_420
)
9205 DRM_DEBUG_KMS("Bad 4:2:0 mode (%08x)\n", tmp
);
9206 } else if (clrspace_yuv
) {
9207 DRM_DEBUG_KMS("YCbCr 4:2:0 Unsupported\n");
9211 power_domain
= POWER_DOMAIN_PIPE_PANEL_FITTER(crtc
->pipe
);
9212 if (intel_display_power_get_if_enabled(dev_priv
, power_domain
)) {
9213 power_domain_mask
|= BIT_ULL(power_domain
);
9214 if (INTEL_GEN(dev_priv
) >= 9)
9215 skylake_get_pfit_config(crtc
, pipe_config
);
9217 ironlake_get_pfit_config(crtc
, pipe_config
);
9220 if (IS_HASWELL(dev_priv
))
9221 pipe_config
->ips_enabled
= hsw_crtc_supports_ips(crtc
) &&
9222 (I915_READ(IPS_CTL
) & IPS_ENABLE
);
9224 if (pipe_config
->cpu_transcoder
!= TRANSCODER_EDP
&&
9225 !transcoder_is_dsi(pipe_config
->cpu_transcoder
)) {
9226 pipe_config
->pixel_multiplier
=
9227 I915_READ(PIPE_MULT(pipe_config
->cpu_transcoder
)) + 1;
9229 pipe_config
->pixel_multiplier
= 1;
9233 for_each_power_domain(power_domain
, power_domain_mask
)
9234 intel_display_power_put(dev_priv
, power_domain
);
9239 static u32
intel_cursor_base(const struct intel_plane_state
*plane_state
)
9241 struct drm_i915_private
*dev_priv
=
9242 to_i915(plane_state
->base
.plane
->dev
);
9243 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
9244 const struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
9247 if (INTEL_INFO(dev_priv
)->cursor_needs_physical
)
9248 base
= obj
->phys_handle
->busaddr
;
9250 base
= intel_plane_ggtt_offset(plane_state
);
9252 base
+= plane_state
->main
.offset
;
9254 /* ILK+ do this automagically */
9255 if (HAS_GMCH_DISPLAY(dev_priv
) &&
9256 plane_state
->base
.rotation
& DRM_MODE_ROTATE_180
)
9257 base
+= (plane_state
->base
.crtc_h
*
9258 plane_state
->base
.crtc_w
- 1) * fb
->format
->cpp
[0];
9263 static u32
intel_cursor_position(const struct intel_plane_state
*plane_state
)
9265 int x
= plane_state
->base
.crtc_x
;
9266 int y
= plane_state
->base
.crtc_y
;
9270 pos
|= CURSOR_POS_SIGN
<< CURSOR_X_SHIFT
;
9273 pos
|= x
<< CURSOR_X_SHIFT
;
9276 pos
|= CURSOR_POS_SIGN
<< CURSOR_Y_SHIFT
;
9279 pos
|= y
<< CURSOR_Y_SHIFT
;
9284 static bool intel_cursor_size_ok(const struct intel_plane_state
*plane_state
)
9286 const struct drm_mode_config
*config
=
9287 &plane_state
->base
.plane
->dev
->mode_config
;
9288 int width
= plane_state
->base
.crtc_w
;
9289 int height
= plane_state
->base
.crtc_h
;
9291 return width
> 0 && width
<= config
->cursor_width
&&
9292 height
> 0 && height
<= config
->cursor_height
;
9295 static int intel_check_cursor(struct intel_crtc_state
*crtc_state
,
9296 struct intel_plane_state
*plane_state
)
9298 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
9303 ret
= drm_plane_helper_check_state(&plane_state
->base
,
9305 DRM_PLANE_HELPER_NO_SCALING
,
9306 DRM_PLANE_HELPER_NO_SCALING
,
9314 if (fb
->modifier
!= DRM_FORMAT_MOD_LINEAR
) {
9315 DRM_DEBUG_KMS("cursor cannot be tiled\n");
9319 src_x
= plane_state
->base
.src_x
>> 16;
9320 src_y
= plane_state
->base
.src_y
>> 16;
9322 intel_add_fb_offsets(&src_x
, &src_y
, plane_state
, 0);
9323 offset
= intel_compute_tile_offset(&src_x
, &src_y
, plane_state
, 0);
9325 if (src_x
!= 0 || src_y
!= 0) {
9326 DRM_DEBUG_KMS("Arbitrary cursor panning not supported\n");
9330 plane_state
->main
.offset
= offset
;
9335 static u32
i845_cursor_ctl(const struct intel_crtc_state
*crtc_state
,
9336 const struct intel_plane_state
*plane_state
)
9338 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
9340 return CURSOR_ENABLE
|
9341 CURSOR_GAMMA_ENABLE
|
9342 CURSOR_FORMAT_ARGB
|
9343 CURSOR_STRIDE(fb
->pitches
[0]);
9346 static bool i845_cursor_size_ok(const struct intel_plane_state
*plane_state
)
9348 int width
= plane_state
->base
.crtc_w
;
9351 * 845g/865g are only limited by the width of their cursors,
9352 * the height is arbitrary up to the precision of the register.
9354 return intel_cursor_size_ok(plane_state
) && IS_ALIGNED(width
, 64);
9357 static int i845_check_cursor(struct intel_plane
*plane
,
9358 struct intel_crtc_state
*crtc_state
,
9359 struct intel_plane_state
*plane_state
)
9361 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
9364 ret
= intel_check_cursor(crtc_state
, plane_state
);
9368 /* if we want to turn off the cursor ignore width and height */
9372 /* Check for which cursor types we support */
9373 if (!i845_cursor_size_ok(plane_state
)) {
9374 DRM_DEBUG("Cursor dimension %dx%d not supported\n",
9375 plane_state
->base
.crtc_w
,
9376 plane_state
->base
.crtc_h
);
9380 switch (fb
->pitches
[0]) {
9387 DRM_DEBUG_KMS("Invalid cursor stride (%u)\n",
9392 plane_state
->ctl
= i845_cursor_ctl(crtc_state
, plane_state
);
9397 static void i845_update_cursor(struct intel_plane
*plane
,
9398 const struct intel_crtc_state
*crtc_state
,
9399 const struct intel_plane_state
*plane_state
)
9401 struct drm_i915_private
*dev_priv
= to_i915(plane
->base
.dev
);
9402 u32 cntl
= 0, base
= 0, pos
= 0, size
= 0;
9403 unsigned long irqflags
;
9405 if (plane_state
&& plane_state
->base
.visible
) {
9406 unsigned int width
= plane_state
->base
.crtc_w
;
9407 unsigned int height
= plane_state
->base
.crtc_h
;
9409 cntl
= plane_state
->ctl
;
9410 size
= (height
<< 12) | width
;
9412 base
= intel_cursor_base(plane_state
);
9413 pos
= intel_cursor_position(plane_state
);
9416 spin_lock_irqsave(&dev_priv
->uncore
.lock
, irqflags
);
9418 /* On these chipsets we can only modify the base/size/stride
9419 * whilst the cursor is disabled.
9421 if (plane
->cursor
.base
!= base
||
9422 plane
->cursor
.size
!= size
||
9423 plane
->cursor
.cntl
!= cntl
) {
9424 I915_WRITE_FW(CURCNTR(PIPE_A
), 0);
9425 I915_WRITE_FW(CURBASE(PIPE_A
), base
);
9426 I915_WRITE_FW(CURSIZE
, size
);
9427 I915_WRITE_FW(CURPOS(PIPE_A
), pos
);
9428 I915_WRITE_FW(CURCNTR(PIPE_A
), cntl
);
9430 plane
->cursor
.base
= base
;
9431 plane
->cursor
.size
= size
;
9432 plane
->cursor
.cntl
= cntl
;
9434 I915_WRITE_FW(CURPOS(PIPE_A
), pos
);
9437 POSTING_READ_FW(CURCNTR(PIPE_A
));
9439 spin_unlock_irqrestore(&dev_priv
->uncore
.lock
, irqflags
);
9442 static void i845_disable_cursor(struct intel_plane
*plane
,
9443 struct intel_crtc
*crtc
)
9445 i845_update_cursor(plane
, NULL
, NULL
);
9448 static bool i845_cursor_get_hw_state(struct intel_plane
*plane
)
9450 struct drm_i915_private
*dev_priv
= to_i915(plane
->base
.dev
);
9451 enum intel_display_power_domain power_domain
;
9454 power_domain
= POWER_DOMAIN_PIPE(PIPE_A
);
9455 if (!intel_display_power_get_if_enabled(dev_priv
, power_domain
))
9458 ret
= I915_READ(CURCNTR(PIPE_A
)) & CURSOR_ENABLE
;
9460 intel_display_power_put(dev_priv
, power_domain
);
9465 static u32
i9xx_cursor_ctl(const struct intel_crtc_state
*crtc_state
,
9466 const struct intel_plane_state
*plane_state
)
9468 struct drm_i915_private
*dev_priv
=
9469 to_i915(plane_state
->base
.plane
->dev
);
9470 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
9473 cntl
= MCURSOR_GAMMA_ENABLE
;
9475 if (HAS_DDI(dev_priv
))
9476 cntl
|= CURSOR_PIPE_CSC_ENABLE
;
9478 cntl
|= MCURSOR_PIPE_SELECT(crtc
->pipe
);
9480 switch (plane_state
->base
.crtc_w
) {
9482 cntl
|= CURSOR_MODE_64_ARGB_AX
;
9485 cntl
|= CURSOR_MODE_128_ARGB_AX
;
9488 cntl
|= CURSOR_MODE_256_ARGB_AX
;
9491 MISSING_CASE(plane_state
->base
.crtc_w
);
9495 if (plane_state
->base
.rotation
& DRM_MODE_ROTATE_180
)
9496 cntl
|= CURSOR_ROTATE_180
;
9501 static bool i9xx_cursor_size_ok(const struct intel_plane_state
*plane_state
)
9503 struct drm_i915_private
*dev_priv
=
9504 to_i915(plane_state
->base
.plane
->dev
);
9505 int width
= plane_state
->base
.crtc_w
;
9506 int height
= plane_state
->base
.crtc_h
;
9508 if (!intel_cursor_size_ok(plane_state
))
9511 /* Cursor width is limited to a few power-of-two sizes */
9522 * IVB+ have CUR_FBC_CTL which allows an arbitrary cursor
9523 * height from 8 lines up to the cursor width, when the
9524 * cursor is not rotated. Everything else requires square
9527 if (HAS_CUR_FBC(dev_priv
) &&
9528 plane_state
->base
.rotation
& DRM_MODE_ROTATE_0
) {
9529 if (height
< 8 || height
> width
)
9532 if (height
!= width
)
9539 static int i9xx_check_cursor(struct intel_plane
*plane
,
9540 struct intel_crtc_state
*crtc_state
,
9541 struct intel_plane_state
*plane_state
)
9543 struct drm_i915_private
*dev_priv
= to_i915(plane
->base
.dev
);
9544 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
9545 enum pipe pipe
= plane
->pipe
;
9548 ret
= intel_check_cursor(crtc_state
, plane_state
);
9552 /* if we want to turn off the cursor ignore width and height */
9556 /* Check for which cursor types we support */
9557 if (!i9xx_cursor_size_ok(plane_state
)) {
9558 DRM_DEBUG("Cursor dimension %dx%d not supported\n",
9559 plane_state
->base
.crtc_w
,
9560 plane_state
->base
.crtc_h
);
9564 if (fb
->pitches
[0] != plane_state
->base
.crtc_w
* fb
->format
->cpp
[0]) {
9565 DRM_DEBUG_KMS("Invalid cursor stride (%u) (cursor width %d)\n",
9566 fb
->pitches
[0], plane_state
->base
.crtc_w
);
9571 * There's something wrong with the cursor on CHV pipe C.
9572 * If it straddles the left edge of the screen then
9573 * moving it away from the edge or disabling it often
9574 * results in a pipe underrun, and often that can lead to
9575 * dead pipe (constant underrun reported, and it scans
9576 * out just a solid color). To recover from that, the
9577 * display power well must be turned off and on again.
9578 * Refuse the put the cursor into that compromised position.
9580 if (IS_CHERRYVIEW(dev_priv
) && pipe
== PIPE_C
&&
9581 plane_state
->base
.visible
&& plane_state
->base
.crtc_x
< 0) {
9582 DRM_DEBUG_KMS("CHV cursor C not allowed to straddle the left screen edge\n");
9586 plane_state
->ctl
= i9xx_cursor_ctl(crtc_state
, plane_state
);
9591 static void i9xx_update_cursor(struct intel_plane
*plane
,
9592 const struct intel_crtc_state
*crtc_state
,
9593 const struct intel_plane_state
*plane_state
)
9595 struct drm_i915_private
*dev_priv
= to_i915(plane
->base
.dev
);
9596 enum pipe pipe
= plane
->pipe
;
9597 u32 cntl
= 0, base
= 0, pos
= 0, fbc_ctl
= 0;
9598 unsigned long irqflags
;
9600 if (plane_state
&& plane_state
->base
.visible
) {
9601 cntl
= plane_state
->ctl
;
9603 if (plane_state
->base
.crtc_h
!= plane_state
->base
.crtc_w
)
9604 fbc_ctl
= CUR_FBC_CTL_EN
| (plane_state
->base
.crtc_h
- 1);
9606 base
= intel_cursor_base(plane_state
);
9607 pos
= intel_cursor_position(plane_state
);
9610 spin_lock_irqsave(&dev_priv
->uncore
.lock
, irqflags
);
9613 * On some platforms writing CURCNTR first will also
9614 * cause CURPOS to be armed by the CURBASE write.
9615 * Without the CURCNTR write the CURPOS write would
9616 * arm itself. Thus we always start the full update
9617 * with a CURCNTR write.
9619 * On other platforms CURPOS always requires the
9620 * CURBASE write to arm the update. Additonally
9621 * a write to any of the cursor register will cancel
9622 * an already armed cursor update. Thus leaving out
9623 * the CURBASE write after CURPOS could lead to a
9624 * cursor that doesn't appear to move, or even change
9625 * shape. Thus we always write CURBASE.
9627 * CURCNTR and CUR_FBC_CTL are always
9628 * armed by the CURBASE write only.
9630 if (plane
->cursor
.base
!= base
||
9631 plane
->cursor
.size
!= fbc_ctl
||
9632 plane
->cursor
.cntl
!= cntl
) {
9633 I915_WRITE_FW(CURCNTR(pipe
), cntl
);
9634 if (HAS_CUR_FBC(dev_priv
))
9635 I915_WRITE_FW(CUR_FBC_CTL(pipe
), fbc_ctl
);
9636 I915_WRITE_FW(CURPOS(pipe
), pos
);
9637 I915_WRITE_FW(CURBASE(pipe
), base
);
9639 plane
->cursor
.base
= base
;
9640 plane
->cursor
.size
= fbc_ctl
;
9641 plane
->cursor
.cntl
= cntl
;
9643 I915_WRITE_FW(CURPOS(pipe
), pos
);
9644 I915_WRITE_FW(CURBASE(pipe
), base
);
9647 POSTING_READ_FW(CURBASE(pipe
));
9649 spin_unlock_irqrestore(&dev_priv
->uncore
.lock
, irqflags
);
9652 static void i9xx_disable_cursor(struct intel_plane
*plane
,
9653 struct intel_crtc
*crtc
)
9655 i9xx_update_cursor(plane
, NULL
, NULL
);
9658 static bool i9xx_cursor_get_hw_state(struct intel_plane
*plane
)
9660 struct drm_i915_private
*dev_priv
= to_i915(plane
->base
.dev
);
9661 enum intel_display_power_domain power_domain
;
9662 enum pipe pipe
= plane
->pipe
;
9666 * Not 100% correct for planes that can move between pipes,
9667 * but that's only the case for gen2-3 which don't have any
9668 * display power wells.
9670 power_domain
= POWER_DOMAIN_PIPE(pipe
);
9671 if (!intel_display_power_get_if_enabled(dev_priv
, power_domain
))
9674 ret
= I915_READ(CURCNTR(pipe
)) & CURSOR_MODE
;
9676 intel_display_power_put(dev_priv
, power_domain
);
9681 /* VESA 640x480x72Hz mode to set on the pipe */
9682 static const struct drm_display_mode load_detect_mode
= {
9683 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT
, 31500, 640, 664,
9684 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
9687 struct drm_framebuffer
*
9688 intel_framebuffer_create(struct drm_i915_gem_object
*obj
,
9689 struct drm_mode_fb_cmd2
*mode_cmd
)
9691 struct intel_framebuffer
*intel_fb
;
9694 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
9696 return ERR_PTR(-ENOMEM
);
9698 ret
= intel_framebuffer_init(intel_fb
, obj
, mode_cmd
);
9702 return &intel_fb
->base
;
9706 return ERR_PTR(ret
);
9710 intel_framebuffer_pitch_for_width(int width
, int bpp
)
9712 u32 pitch
= DIV_ROUND_UP(width
* bpp
, 8);
9713 return ALIGN(pitch
, 64);
9717 intel_framebuffer_size_for_mode(const struct drm_display_mode
*mode
, int bpp
)
9719 u32 pitch
= intel_framebuffer_pitch_for_width(mode
->hdisplay
, bpp
);
9720 return PAGE_ALIGN(pitch
* mode
->vdisplay
);
9723 static struct drm_framebuffer
*
9724 intel_framebuffer_create_for_mode(struct drm_device
*dev
,
9725 const struct drm_display_mode
*mode
,
9728 struct drm_framebuffer
*fb
;
9729 struct drm_i915_gem_object
*obj
;
9730 struct drm_mode_fb_cmd2 mode_cmd
= { 0 };
9732 obj
= i915_gem_object_create(to_i915(dev
),
9733 intel_framebuffer_size_for_mode(mode
, bpp
));
9735 return ERR_CAST(obj
);
9737 mode_cmd
.width
= mode
->hdisplay
;
9738 mode_cmd
.height
= mode
->vdisplay
;
9739 mode_cmd
.pitches
[0] = intel_framebuffer_pitch_for_width(mode_cmd
.width
,
9741 mode_cmd
.pixel_format
= drm_mode_legacy_fb_format(bpp
, depth
);
9743 fb
= intel_framebuffer_create(obj
, &mode_cmd
);
9745 i915_gem_object_put(obj
);
9750 static struct drm_framebuffer
*
9751 mode_fits_in_fbdev(struct drm_device
*dev
,
9752 const struct drm_display_mode
*mode
)
9754 #ifdef CONFIG_DRM_FBDEV_EMULATION
9755 struct drm_i915_private
*dev_priv
= to_i915(dev
);
9756 struct drm_i915_gem_object
*obj
;
9757 struct drm_framebuffer
*fb
;
9759 if (!dev_priv
->fbdev
)
9762 if (!dev_priv
->fbdev
->fb
)
9765 obj
= dev_priv
->fbdev
->fb
->obj
;
9768 fb
= &dev_priv
->fbdev
->fb
->base
;
9769 if (fb
->pitches
[0] < intel_framebuffer_pitch_for_width(mode
->hdisplay
,
9770 fb
->format
->cpp
[0] * 8))
9773 if (obj
->base
.size
< mode
->vdisplay
* fb
->pitches
[0])
9776 drm_framebuffer_get(fb
);
9783 static int intel_modeset_setup_plane_state(struct drm_atomic_state
*state
,
9784 struct drm_crtc
*crtc
,
9785 const struct drm_display_mode
*mode
,
9786 struct drm_framebuffer
*fb
,
9789 struct drm_plane_state
*plane_state
;
9790 int hdisplay
, vdisplay
;
9793 plane_state
= drm_atomic_get_plane_state(state
, crtc
->primary
);
9794 if (IS_ERR(plane_state
))
9795 return PTR_ERR(plane_state
);
9798 drm_mode_get_hv_timing(mode
, &hdisplay
, &vdisplay
);
9800 hdisplay
= vdisplay
= 0;
9802 ret
= drm_atomic_set_crtc_for_plane(plane_state
, fb
? crtc
: NULL
);
9805 drm_atomic_set_fb_for_plane(plane_state
, fb
);
9806 plane_state
->crtc_x
= 0;
9807 plane_state
->crtc_y
= 0;
9808 plane_state
->crtc_w
= hdisplay
;
9809 plane_state
->crtc_h
= vdisplay
;
9810 plane_state
->src_x
= x
<< 16;
9811 plane_state
->src_y
= y
<< 16;
9812 plane_state
->src_w
= hdisplay
<< 16;
9813 plane_state
->src_h
= vdisplay
<< 16;
9818 int intel_get_load_detect_pipe(struct drm_connector
*connector
,
9819 const struct drm_display_mode
*mode
,
9820 struct intel_load_detect_pipe
*old
,
9821 struct drm_modeset_acquire_ctx
*ctx
)
9823 struct intel_crtc
*intel_crtc
;
9824 struct intel_encoder
*intel_encoder
=
9825 intel_attached_encoder(connector
);
9826 struct drm_crtc
*possible_crtc
;
9827 struct drm_encoder
*encoder
= &intel_encoder
->base
;
9828 struct drm_crtc
*crtc
= NULL
;
9829 struct drm_device
*dev
= encoder
->dev
;
9830 struct drm_i915_private
*dev_priv
= to_i915(dev
);
9831 struct drm_framebuffer
*fb
;
9832 struct drm_mode_config
*config
= &dev
->mode_config
;
9833 struct drm_atomic_state
*state
= NULL
, *restore_state
= NULL
;
9834 struct drm_connector_state
*connector_state
;
9835 struct intel_crtc_state
*crtc_state
;
9838 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
9839 connector
->base
.id
, connector
->name
,
9840 encoder
->base
.id
, encoder
->name
);
9842 old
->restore_state
= NULL
;
9844 WARN_ON(!drm_modeset_is_locked(&config
->connection_mutex
));
9847 * Algorithm gets a little messy:
9849 * - if the connector already has an assigned crtc, use it (but make
9850 * sure it's on first)
9852 * - try to find the first unused crtc that can drive this connector,
9853 * and use that if we find one
9856 /* See if we already have a CRTC for this connector */
9857 if (connector
->state
->crtc
) {
9858 crtc
= connector
->state
->crtc
;
9860 ret
= drm_modeset_lock(&crtc
->mutex
, ctx
);
9864 /* Make sure the crtc and connector are running */
9868 /* Find an unused one (if possible) */
9869 for_each_crtc(dev
, possible_crtc
) {
9871 if (!(encoder
->possible_crtcs
& (1 << i
)))
9874 ret
= drm_modeset_lock(&possible_crtc
->mutex
, ctx
);
9878 if (possible_crtc
->state
->enable
) {
9879 drm_modeset_unlock(&possible_crtc
->mutex
);
9883 crtc
= possible_crtc
;
9888 * If we didn't find an unused CRTC, don't use any.
9891 DRM_DEBUG_KMS("no pipe available for load-detect\n");
9897 intel_crtc
= to_intel_crtc(crtc
);
9899 ret
= drm_modeset_lock(&crtc
->primary
->mutex
, ctx
);
9903 state
= drm_atomic_state_alloc(dev
);
9904 restore_state
= drm_atomic_state_alloc(dev
);
9905 if (!state
|| !restore_state
) {
9910 state
->acquire_ctx
= ctx
;
9911 restore_state
->acquire_ctx
= ctx
;
9913 connector_state
= drm_atomic_get_connector_state(state
, connector
);
9914 if (IS_ERR(connector_state
)) {
9915 ret
= PTR_ERR(connector_state
);
9919 ret
= drm_atomic_set_crtc_for_connector(connector_state
, crtc
);
9923 crtc_state
= intel_atomic_get_crtc_state(state
, intel_crtc
);
9924 if (IS_ERR(crtc_state
)) {
9925 ret
= PTR_ERR(crtc_state
);
9929 crtc_state
->base
.active
= crtc_state
->base
.enable
= true;
9932 mode
= &load_detect_mode
;
9934 /* We need a framebuffer large enough to accommodate all accesses
9935 * that the plane may generate whilst we perform load detection.
9936 * We can not rely on the fbcon either being present (we get called
9937 * during its initialisation to detect all boot displays, or it may
9938 * not even exist) or that it is large enough to satisfy the
9941 fb
= mode_fits_in_fbdev(dev
, mode
);
9943 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
9944 fb
= intel_framebuffer_create_for_mode(dev
, mode
, 24, 32);
9946 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
9948 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
9953 ret
= intel_modeset_setup_plane_state(state
, crtc
, mode
, fb
, 0, 0);
9954 drm_framebuffer_put(fb
);
9958 ret
= drm_atomic_set_mode_for_crtc(&crtc_state
->base
, mode
);
9962 ret
= PTR_ERR_OR_ZERO(drm_atomic_get_connector_state(restore_state
, connector
));
9964 ret
= PTR_ERR_OR_ZERO(drm_atomic_get_crtc_state(restore_state
, crtc
));
9966 ret
= PTR_ERR_OR_ZERO(drm_atomic_get_plane_state(restore_state
, crtc
->primary
));
9968 DRM_DEBUG_KMS("Failed to create a copy of old state to restore: %i\n", ret
);
9972 ret
= drm_atomic_commit(state
);
9974 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
9978 old
->restore_state
= restore_state
;
9979 drm_atomic_state_put(state
);
9981 /* let the connector get through one full cycle before testing */
9982 intel_wait_for_vblank(dev_priv
, intel_crtc
->pipe
);
9987 drm_atomic_state_put(state
);
9990 if (restore_state
) {
9991 drm_atomic_state_put(restore_state
);
9992 restore_state
= NULL
;
9995 if (ret
== -EDEADLK
)
10001 void intel_release_load_detect_pipe(struct drm_connector
*connector
,
10002 struct intel_load_detect_pipe
*old
,
10003 struct drm_modeset_acquire_ctx
*ctx
)
10005 struct intel_encoder
*intel_encoder
=
10006 intel_attached_encoder(connector
);
10007 struct drm_encoder
*encoder
= &intel_encoder
->base
;
10008 struct drm_atomic_state
*state
= old
->restore_state
;
10011 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
10012 connector
->base
.id
, connector
->name
,
10013 encoder
->base
.id
, encoder
->name
);
10018 ret
= drm_atomic_helper_commit_duplicated_state(state
, ctx
);
10020 DRM_DEBUG_KMS("Couldn't release load detect pipe: %i\n", ret
);
10021 drm_atomic_state_put(state
);
10024 static int i9xx_pll_refclk(struct drm_device
*dev
,
10025 const struct intel_crtc_state
*pipe_config
)
10027 struct drm_i915_private
*dev_priv
= to_i915(dev
);
10028 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
10030 if ((dpll
& PLL_REF_INPUT_MASK
) == PLLB_REF_INPUT_SPREADSPECTRUMIN
)
10031 return dev_priv
->vbt
.lvds_ssc_freq
;
10032 else if (HAS_PCH_SPLIT(dev_priv
))
10034 else if (!IS_GEN2(dev_priv
))
10040 /* Returns the clock of the currently programmed mode of the given pipe. */
10041 static void i9xx_crtc_clock_get(struct intel_crtc
*crtc
,
10042 struct intel_crtc_state
*pipe_config
)
10044 struct drm_device
*dev
= crtc
->base
.dev
;
10045 struct drm_i915_private
*dev_priv
= to_i915(dev
);
10046 int pipe
= pipe_config
->cpu_transcoder
;
10047 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
10051 int refclk
= i9xx_pll_refclk(dev
, pipe_config
);
10053 if ((dpll
& DISPLAY_RATE_SELECT_FPA1
) == 0)
10054 fp
= pipe_config
->dpll_hw_state
.fp0
;
10056 fp
= pipe_config
->dpll_hw_state
.fp1
;
10058 clock
.m1
= (fp
& FP_M1_DIV_MASK
) >> FP_M1_DIV_SHIFT
;
10059 if (IS_PINEVIEW(dev_priv
)) {
10060 clock
.n
= ffs((fp
& FP_N_PINEVIEW_DIV_MASK
) >> FP_N_DIV_SHIFT
) - 1;
10061 clock
.m2
= (fp
& FP_M2_PINEVIEW_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
10063 clock
.n
= (fp
& FP_N_DIV_MASK
) >> FP_N_DIV_SHIFT
;
10064 clock
.m2
= (fp
& FP_M2_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
10067 if (!IS_GEN2(dev_priv
)) {
10068 if (IS_PINEVIEW(dev_priv
))
10069 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW
) >>
10070 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
);
10072 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK
) >>
10073 DPLL_FPA01_P1_POST_DIV_SHIFT
);
10075 switch (dpll
& DPLL_MODE_MASK
) {
10076 case DPLLB_MODE_DAC_SERIAL
:
10077 clock
.p2
= dpll
& DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
?
10080 case DPLLB_MODE_LVDS
:
10081 clock
.p2
= dpll
& DPLLB_LVDS_P2_CLOCK_DIV_7
?
10085 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
10086 "mode\n", (int)(dpll
& DPLL_MODE_MASK
));
10090 if (IS_PINEVIEW(dev_priv
))
10091 port_clock
= pnv_calc_dpll_params(refclk
, &clock
);
10093 port_clock
= i9xx_calc_dpll_params(refclk
, &clock
);
10095 u32 lvds
= IS_I830(dev_priv
) ? 0 : I915_READ(LVDS
);
10096 bool is_lvds
= (pipe
== 1) && (lvds
& LVDS_PORT_EN
);
10099 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS
) >>
10100 DPLL_FPA01_P1_POST_DIV_SHIFT
);
10102 if (lvds
& LVDS_CLKB_POWER_UP
)
10107 if (dpll
& PLL_P1_DIVIDE_BY_TWO
)
10110 clock
.p1
= ((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830
) >>
10111 DPLL_FPA01_P1_POST_DIV_SHIFT
) + 2;
10113 if (dpll
& PLL_P2_DIVIDE_BY_4
)
10119 port_clock
= i9xx_calc_dpll_params(refclk
, &clock
);
10123 * This value includes pixel_multiplier. We will use
10124 * port_clock to compute adjusted_mode.crtc_clock in the
10125 * encoder's get_config() function.
10127 pipe_config
->port_clock
= port_clock
;
10130 int intel_dotclock_calculate(int link_freq
,
10131 const struct intel_link_m_n
*m_n
)
10134 * The calculation for the data clock is:
10135 * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp
10136 * But we want to avoid losing precison if possible, so:
10137 * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp))
10139 * and the link clock is simpler:
10140 * link_clock = (m * link_clock) / n
10146 return div_u64(mul_u32_u32(m_n
->link_m
, link_freq
), m_n
->link_n
);
10149 static void ironlake_pch_clock_get(struct intel_crtc
*crtc
,
10150 struct intel_crtc_state
*pipe_config
)
10152 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
10154 /* read out port_clock from the DPLL */
10155 i9xx_crtc_clock_get(crtc
, pipe_config
);
10158 * In case there is an active pipe without active ports,
10159 * we may need some idea for the dotclock anyway.
10160 * Calculate one based on the FDI configuration.
10162 pipe_config
->base
.adjusted_mode
.crtc_clock
=
10163 intel_dotclock_calculate(intel_fdi_link_freq(dev_priv
, pipe_config
),
10164 &pipe_config
->fdi_m_n
);
10167 /* Returns the currently programmed mode of the given encoder. */
10168 struct drm_display_mode
*
10169 intel_encoder_current_mode(struct intel_encoder
*encoder
)
10171 struct drm_i915_private
*dev_priv
= to_i915(encoder
->base
.dev
);
10172 struct intel_crtc_state
*crtc_state
;
10173 struct drm_display_mode
*mode
;
10174 struct intel_crtc
*crtc
;
10177 if (!encoder
->get_hw_state(encoder
, &pipe
))
10180 crtc
= intel_get_crtc_for_pipe(dev_priv
, pipe
);
10182 mode
= kzalloc(sizeof(*mode
), GFP_KERNEL
);
10186 crtc_state
= kzalloc(sizeof(*crtc_state
), GFP_KERNEL
);
10192 crtc_state
->base
.crtc
= &crtc
->base
;
10194 if (!dev_priv
->display
.get_pipe_config(crtc
, crtc_state
)) {
10200 encoder
->get_config(encoder
, crtc_state
);
10202 intel_mode_from_pipe_config(mode
, crtc_state
);
10209 static void intel_crtc_destroy(struct drm_crtc
*crtc
)
10211 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10213 drm_crtc_cleanup(crtc
);
10218 * intel_wm_need_update - Check whether watermarks need updating
10219 * @plane: drm plane
10220 * @state: new plane state
10222 * Check current plane state versus the new one to determine whether
10223 * watermarks need to be recalculated.
10225 * Returns true or false.
10227 static bool intel_wm_need_update(struct drm_plane
*plane
,
10228 struct drm_plane_state
*state
)
10230 struct intel_plane_state
*new = to_intel_plane_state(state
);
10231 struct intel_plane_state
*cur
= to_intel_plane_state(plane
->state
);
10233 /* Update watermarks on tiling or size changes. */
10234 if (new->base
.visible
!= cur
->base
.visible
)
10237 if (!cur
->base
.fb
|| !new->base
.fb
)
10240 if (cur
->base
.fb
->modifier
!= new->base
.fb
->modifier
||
10241 cur
->base
.rotation
!= new->base
.rotation
||
10242 drm_rect_width(&new->base
.src
) != drm_rect_width(&cur
->base
.src
) ||
10243 drm_rect_height(&new->base
.src
) != drm_rect_height(&cur
->base
.src
) ||
10244 drm_rect_width(&new->base
.dst
) != drm_rect_width(&cur
->base
.dst
) ||
10245 drm_rect_height(&new->base
.dst
) != drm_rect_height(&cur
->base
.dst
))
10251 static bool needs_scaling(const struct intel_plane_state
*state
)
10253 int src_w
= drm_rect_width(&state
->base
.src
) >> 16;
10254 int src_h
= drm_rect_height(&state
->base
.src
) >> 16;
10255 int dst_w
= drm_rect_width(&state
->base
.dst
);
10256 int dst_h
= drm_rect_height(&state
->base
.dst
);
10258 return (src_w
!= dst_w
|| src_h
!= dst_h
);
10261 int intel_plane_atomic_calc_changes(const struct intel_crtc_state
*old_crtc_state
,
10262 struct drm_crtc_state
*crtc_state
,
10263 const struct intel_plane_state
*old_plane_state
,
10264 struct drm_plane_state
*plane_state
)
10266 struct intel_crtc_state
*pipe_config
= to_intel_crtc_state(crtc_state
);
10267 struct drm_crtc
*crtc
= crtc_state
->crtc
;
10268 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10269 struct intel_plane
*plane
= to_intel_plane(plane_state
->plane
);
10270 struct drm_device
*dev
= crtc
->dev
;
10271 struct drm_i915_private
*dev_priv
= to_i915(dev
);
10272 bool mode_changed
= needs_modeset(crtc_state
);
10273 bool was_crtc_enabled
= old_crtc_state
->base
.active
;
10274 bool is_crtc_enabled
= crtc_state
->active
;
10275 bool turn_off
, turn_on
, visible
, was_visible
;
10276 struct drm_framebuffer
*fb
= plane_state
->fb
;
10279 if (INTEL_GEN(dev_priv
) >= 9 && plane
->id
!= PLANE_CURSOR
) {
10280 ret
= skl_update_scaler_plane(
10281 to_intel_crtc_state(crtc_state
),
10282 to_intel_plane_state(plane_state
));
10287 was_visible
= old_plane_state
->base
.visible
;
10288 visible
= plane_state
->visible
;
10290 if (!was_crtc_enabled
&& WARN_ON(was_visible
))
10291 was_visible
= false;
10294 * Visibility is calculated as if the crtc was on, but
10295 * after scaler setup everything depends on it being off
10296 * when the crtc isn't active.
10298 * FIXME this is wrong for watermarks. Watermarks should also
10299 * be computed as if the pipe would be active. Perhaps move
10300 * per-plane wm computation to the .check_plane() hook, and
10301 * only combine the results from all planes in the current place?
10303 if (!is_crtc_enabled
) {
10304 plane_state
->visible
= visible
= false;
10305 to_intel_crtc_state(crtc_state
)->active_planes
&= ~BIT(plane
->id
);
10308 if (!was_visible
&& !visible
)
10311 if (fb
!= old_plane_state
->base
.fb
)
10312 pipe_config
->fb_changed
= true;
10314 turn_off
= was_visible
&& (!visible
|| mode_changed
);
10315 turn_on
= visible
&& (!was_visible
|| mode_changed
);
10317 DRM_DEBUG_ATOMIC("[CRTC:%d:%s] has [PLANE:%d:%s] with fb %i\n",
10318 intel_crtc
->base
.base
.id
, intel_crtc
->base
.name
,
10319 plane
->base
.base
.id
, plane
->base
.name
,
10320 fb
? fb
->base
.id
: -1);
10322 DRM_DEBUG_ATOMIC("[PLANE:%d:%s] visible %i -> %i, off %i, on %i, ms %i\n",
10323 plane
->base
.base
.id
, plane
->base
.name
,
10324 was_visible
, visible
,
10325 turn_off
, turn_on
, mode_changed
);
10328 if (INTEL_GEN(dev_priv
) < 5 && !IS_G4X(dev_priv
))
10329 pipe_config
->update_wm_pre
= true;
10331 /* must disable cxsr around plane enable/disable */
10332 if (plane
->id
!= PLANE_CURSOR
)
10333 pipe_config
->disable_cxsr
= true;
10334 } else if (turn_off
) {
10335 if (INTEL_GEN(dev_priv
) < 5 && !IS_G4X(dev_priv
))
10336 pipe_config
->update_wm_post
= true;
10338 /* must disable cxsr around plane enable/disable */
10339 if (plane
->id
!= PLANE_CURSOR
)
10340 pipe_config
->disable_cxsr
= true;
10341 } else if (intel_wm_need_update(&plane
->base
, plane_state
)) {
10342 if (INTEL_GEN(dev_priv
) < 5 && !IS_G4X(dev_priv
)) {
10343 /* FIXME bollocks */
10344 pipe_config
->update_wm_pre
= true;
10345 pipe_config
->update_wm_post
= true;
10349 if (visible
|| was_visible
)
10350 pipe_config
->fb_bits
|= plane
->frontbuffer_bit
;
10353 * WaCxSRDisabledForSpriteScaling:ivb
10355 * cstate->update_wm was already set above, so this flag will
10356 * take effect when we commit and program watermarks.
10358 if (plane
->id
== PLANE_SPRITE0
&& IS_IVYBRIDGE(dev_priv
) &&
10359 needs_scaling(to_intel_plane_state(plane_state
)) &&
10360 !needs_scaling(old_plane_state
))
10361 pipe_config
->disable_lp_wm
= true;
10366 static bool encoders_cloneable(const struct intel_encoder
*a
,
10367 const struct intel_encoder
*b
)
10369 /* masks could be asymmetric, so check both ways */
10370 return a
== b
|| (a
->cloneable
& (1 << b
->type
) &&
10371 b
->cloneable
& (1 << a
->type
));
10374 static bool check_single_encoder_cloning(struct drm_atomic_state
*state
,
10375 struct intel_crtc
*crtc
,
10376 struct intel_encoder
*encoder
)
10378 struct intel_encoder
*source_encoder
;
10379 struct drm_connector
*connector
;
10380 struct drm_connector_state
*connector_state
;
10383 for_each_new_connector_in_state(state
, connector
, connector_state
, i
) {
10384 if (connector_state
->crtc
!= &crtc
->base
)
10388 to_intel_encoder(connector_state
->best_encoder
);
10389 if (!encoders_cloneable(encoder
, source_encoder
))
10396 static int intel_crtc_atomic_check(struct drm_crtc
*crtc
,
10397 struct drm_crtc_state
*crtc_state
)
10399 struct drm_device
*dev
= crtc
->dev
;
10400 struct drm_i915_private
*dev_priv
= to_i915(dev
);
10401 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10402 struct intel_crtc_state
*pipe_config
=
10403 to_intel_crtc_state(crtc_state
);
10404 struct drm_atomic_state
*state
= crtc_state
->state
;
10406 bool mode_changed
= needs_modeset(crtc_state
);
10408 if (mode_changed
&& !crtc_state
->active
)
10409 pipe_config
->update_wm_post
= true;
10411 if (mode_changed
&& crtc_state
->enable
&&
10412 dev_priv
->display
.crtc_compute_clock
&&
10413 !WARN_ON(pipe_config
->shared_dpll
)) {
10414 ret
= dev_priv
->display
.crtc_compute_clock(intel_crtc
,
10420 if (crtc_state
->color_mgmt_changed
) {
10421 ret
= intel_color_check(crtc
, crtc_state
);
10426 * Changing color management on Intel hardware is
10427 * handled as part of planes update.
10429 crtc_state
->planes_changed
= true;
10433 if (dev_priv
->display
.compute_pipe_wm
) {
10434 ret
= dev_priv
->display
.compute_pipe_wm(pipe_config
);
10436 DRM_DEBUG_KMS("Target pipe watermarks are invalid\n");
10441 if (dev_priv
->display
.compute_intermediate_wm
&&
10442 !to_intel_atomic_state(state
)->skip_intermediate_wm
) {
10443 if (WARN_ON(!dev_priv
->display
.compute_pipe_wm
))
10447 * Calculate 'intermediate' watermarks that satisfy both the
10448 * old state and the new state. We can program these
10451 ret
= dev_priv
->display
.compute_intermediate_wm(dev
,
10455 DRM_DEBUG_KMS("No valid intermediate pipe watermarks are possible\n");
10458 } else if (dev_priv
->display
.compute_intermediate_wm
) {
10459 if (HAS_PCH_SPLIT(dev_priv
) && INTEL_GEN(dev_priv
) < 9)
10460 pipe_config
->wm
.ilk
.intermediate
= pipe_config
->wm
.ilk
.optimal
;
10463 if (INTEL_GEN(dev_priv
) >= 9) {
10465 ret
= skl_update_scaler_crtc(pipe_config
);
10468 ret
= skl_check_pipe_max_pixel_rate(intel_crtc
,
10471 ret
= intel_atomic_setup_scalers(dev_priv
, intel_crtc
,
10478 static const struct drm_crtc_helper_funcs intel_helper_funcs
= {
10479 .atomic_begin
= intel_begin_crtc_commit
,
10480 .atomic_flush
= intel_finish_crtc_commit
,
10481 .atomic_check
= intel_crtc_atomic_check
,
10484 static void intel_modeset_update_connector_atomic_state(struct drm_device
*dev
)
10486 struct intel_connector
*connector
;
10487 struct drm_connector_list_iter conn_iter
;
10489 drm_connector_list_iter_begin(dev
, &conn_iter
);
10490 for_each_intel_connector_iter(connector
, &conn_iter
) {
10491 if (connector
->base
.state
->crtc
)
10492 drm_connector_unreference(&connector
->base
);
10494 if (connector
->base
.encoder
) {
10495 connector
->base
.state
->best_encoder
=
10496 connector
->base
.encoder
;
10497 connector
->base
.state
->crtc
=
10498 connector
->base
.encoder
->crtc
;
10500 drm_connector_reference(&connector
->base
);
10502 connector
->base
.state
->best_encoder
= NULL
;
10503 connector
->base
.state
->crtc
= NULL
;
10506 drm_connector_list_iter_end(&conn_iter
);
10510 connected_sink_compute_bpp(struct intel_connector
*connector
,
10511 struct intel_crtc_state
*pipe_config
)
10513 const struct drm_display_info
*info
= &connector
->base
.display_info
;
10514 int bpp
= pipe_config
->pipe_bpp
;
10516 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n",
10517 connector
->base
.base
.id
,
10518 connector
->base
.name
);
10520 /* Don't use an invalid EDID bpc value */
10521 if (info
->bpc
!= 0 && info
->bpc
* 3 < bpp
) {
10522 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
10523 bpp
, info
->bpc
* 3);
10524 pipe_config
->pipe_bpp
= info
->bpc
* 3;
10527 /* Clamp bpp to 8 on screens without EDID 1.4 */
10528 if (info
->bpc
== 0 && bpp
> 24) {
10529 DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
10531 pipe_config
->pipe_bpp
= 24;
10536 compute_baseline_pipe_bpp(struct intel_crtc
*crtc
,
10537 struct intel_crtc_state
*pipe_config
)
10539 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
10540 struct drm_atomic_state
*state
;
10541 struct drm_connector
*connector
;
10542 struct drm_connector_state
*connector_state
;
10545 if ((IS_G4X(dev_priv
) || IS_VALLEYVIEW(dev_priv
) ||
10546 IS_CHERRYVIEW(dev_priv
)))
10548 else if (INTEL_GEN(dev_priv
) >= 5)
10554 pipe_config
->pipe_bpp
= bpp
;
10556 state
= pipe_config
->base
.state
;
10558 /* Clamp display bpp to EDID value */
10559 for_each_new_connector_in_state(state
, connector
, connector_state
, i
) {
10560 if (connector_state
->crtc
!= &crtc
->base
)
10563 connected_sink_compute_bpp(to_intel_connector(connector
),
10570 static void intel_dump_crtc_timings(const struct drm_display_mode
*mode
)
10572 DRM_DEBUG_KMS("crtc timings: %d %d %d %d %d %d %d %d %d, "
10573 "type: 0x%x flags: 0x%x\n",
10575 mode
->crtc_hdisplay
, mode
->crtc_hsync_start
,
10576 mode
->crtc_hsync_end
, mode
->crtc_htotal
,
10577 mode
->crtc_vdisplay
, mode
->crtc_vsync_start
,
10578 mode
->crtc_vsync_end
, mode
->crtc_vtotal
, mode
->type
, mode
->flags
);
10582 intel_dump_m_n_config(struct intel_crtc_state
*pipe_config
, char *id
,
10583 unsigned int lane_count
, struct intel_link_m_n
*m_n
)
10585 DRM_DEBUG_KMS("%s: lanes: %i; gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
10587 m_n
->gmch_m
, m_n
->gmch_n
,
10588 m_n
->link_m
, m_n
->link_n
, m_n
->tu
);
10591 #define OUTPUT_TYPE(x) [INTEL_OUTPUT_ ## x] = #x
10593 static const char * const output_type_str
[] = {
10594 OUTPUT_TYPE(UNUSED
),
10595 OUTPUT_TYPE(ANALOG
),
10599 OUTPUT_TYPE(TVOUT
),
10604 OUTPUT_TYPE(UNKNOWN
),
10605 OUTPUT_TYPE(DP_MST
),
10610 static void snprintf_output_types(char *buf
, size_t len
,
10611 unsigned int output_types
)
10618 for (i
= 0; i
< ARRAY_SIZE(output_type_str
); i
++) {
10621 if ((output_types
& BIT(i
)) == 0)
10624 r
= snprintf(str
, len
, "%s%s",
10625 str
!= buf
? "," : "", output_type_str
[i
]);
10631 output_types
&= ~BIT(i
);
10634 WARN_ON_ONCE(output_types
!= 0);
10637 static void intel_dump_pipe_config(struct intel_crtc
*crtc
,
10638 struct intel_crtc_state
*pipe_config
,
10639 const char *context
)
10641 struct drm_device
*dev
= crtc
->base
.dev
;
10642 struct drm_i915_private
*dev_priv
= to_i915(dev
);
10643 struct drm_plane
*plane
;
10644 struct intel_plane
*intel_plane
;
10645 struct intel_plane_state
*state
;
10646 struct drm_framebuffer
*fb
;
10649 DRM_DEBUG_KMS("[CRTC:%d:%s]%s\n",
10650 crtc
->base
.base
.id
, crtc
->base
.name
, context
);
10652 snprintf_output_types(buf
, sizeof(buf
), pipe_config
->output_types
);
10653 DRM_DEBUG_KMS("output_types: %s (0x%x)\n",
10654 buf
, pipe_config
->output_types
);
10656 DRM_DEBUG_KMS("cpu_transcoder: %s, pipe bpp: %i, dithering: %i\n",
10657 transcoder_name(pipe_config
->cpu_transcoder
),
10658 pipe_config
->pipe_bpp
, pipe_config
->dither
);
10660 if (pipe_config
->has_pch_encoder
)
10661 intel_dump_m_n_config(pipe_config
, "fdi",
10662 pipe_config
->fdi_lanes
,
10663 &pipe_config
->fdi_m_n
);
10665 if (pipe_config
->ycbcr420
)
10666 DRM_DEBUG_KMS("YCbCr 4:2:0 output enabled\n");
10668 if (intel_crtc_has_dp_encoder(pipe_config
)) {
10669 intel_dump_m_n_config(pipe_config
, "dp m_n",
10670 pipe_config
->lane_count
, &pipe_config
->dp_m_n
);
10671 if (pipe_config
->has_drrs
)
10672 intel_dump_m_n_config(pipe_config
, "dp m2_n2",
10673 pipe_config
->lane_count
,
10674 &pipe_config
->dp_m2_n2
);
10677 DRM_DEBUG_KMS("audio: %i, infoframes: %i\n",
10678 pipe_config
->has_audio
, pipe_config
->has_infoframe
);
10680 DRM_DEBUG_KMS("requested mode:\n");
10681 drm_mode_debug_printmodeline(&pipe_config
->base
.mode
);
10682 DRM_DEBUG_KMS("adjusted mode:\n");
10683 drm_mode_debug_printmodeline(&pipe_config
->base
.adjusted_mode
);
10684 intel_dump_crtc_timings(&pipe_config
->base
.adjusted_mode
);
10685 DRM_DEBUG_KMS("port clock: %d, pipe src size: %dx%d, pixel rate %d\n",
10686 pipe_config
->port_clock
,
10687 pipe_config
->pipe_src_w
, pipe_config
->pipe_src_h
,
10688 pipe_config
->pixel_rate
);
10690 if (INTEL_GEN(dev_priv
) >= 9)
10691 DRM_DEBUG_KMS("num_scalers: %d, scaler_users: 0x%x, scaler_id: %d\n",
10693 pipe_config
->scaler_state
.scaler_users
,
10694 pipe_config
->scaler_state
.scaler_id
);
10696 if (HAS_GMCH_DISPLAY(dev_priv
))
10697 DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n",
10698 pipe_config
->gmch_pfit
.control
,
10699 pipe_config
->gmch_pfit
.pgm_ratios
,
10700 pipe_config
->gmch_pfit
.lvds_border_bits
);
10702 DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n",
10703 pipe_config
->pch_pfit
.pos
,
10704 pipe_config
->pch_pfit
.size
,
10705 enableddisabled(pipe_config
->pch_pfit
.enabled
));
10707 DRM_DEBUG_KMS("ips: %i, double wide: %i\n",
10708 pipe_config
->ips_enabled
, pipe_config
->double_wide
);
10710 intel_dpll_dump_hw_state(dev_priv
, &pipe_config
->dpll_hw_state
);
10712 DRM_DEBUG_KMS("planes on this crtc\n");
10713 list_for_each_entry(plane
, &dev
->mode_config
.plane_list
, head
) {
10714 struct drm_format_name_buf format_name
;
10715 intel_plane
= to_intel_plane(plane
);
10716 if (intel_plane
->pipe
!= crtc
->pipe
)
10719 state
= to_intel_plane_state(plane
->state
);
10720 fb
= state
->base
.fb
;
10722 DRM_DEBUG_KMS("[PLANE:%d:%s] disabled, scaler_id = %d\n",
10723 plane
->base
.id
, plane
->name
, state
->scaler_id
);
10727 DRM_DEBUG_KMS("[PLANE:%d:%s] FB:%d, fb = %ux%u format = %s\n",
10728 plane
->base
.id
, plane
->name
,
10729 fb
->base
.id
, fb
->width
, fb
->height
,
10730 drm_get_format_name(fb
->format
->format
, &format_name
));
10731 if (INTEL_GEN(dev_priv
) >= 9)
10732 DRM_DEBUG_KMS("\tscaler:%d src %dx%d+%d+%d dst %dx%d+%d+%d\n",
10734 state
->base
.src
.x1
>> 16,
10735 state
->base
.src
.y1
>> 16,
10736 drm_rect_width(&state
->base
.src
) >> 16,
10737 drm_rect_height(&state
->base
.src
) >> 16,
10738 state
->base
.dst
.x1
, state
->base
.dst
.y1
,
10739 drm_rect_width(&state
->base
.dst
),
10740 drm_rect_height(&state
->base
.dst
));
10744 static bool check_digital_port_conflicts(struct drm_atomic_state
*state
)
10746 struct drm_device
*dev
= state
->dev
;
10747 struct drm_connector
*connector
;
10748 struct drm_connector_list_iter conn_iter
;
10749 unsigned int used_ports
= 0;
10750 unsigned int used_mst_ports
= 0;
10753 * Walk the connector list instead of the encoder
10754 * list to detect the problem on ddi platforms
10755 * where there's just one encoder per digital port.
10757 drm_connector_list_iter_begin(dev
, &conn_iter
);
10758 drm_for_each_connector_iter(connector
, &conn_iter
) {
10759 struct drm_connector_state
*connector_state
;
10760 struct intel_encoder
*encoder
;
10762 connector_state
= drm_atomic_get_existing_connector_state(state
, connector
);
10763 if (!connector_state
)
10764 connector_state
= connector
->state
;
10766 if (!connector_state
->best_encoder
)
10769 encoder
= to_intel_encoder(connector_state
->best_encoder
);
10771 WARN_ON(!connector_state
->crtc
);
10773 switch (encoder
->type
) {
10774 unsigned int port_mask
;
10775 case INTEL_OUTPUT_UNKNOWN
:
10776 if (WARN_ON(!HAS_DDI(to_i915(dev
))))
10778 case INTEL_OUTPUT_DP
:
10779 case INTEL_OUTPUT_HDMI
:
10780 case INTEL_OUTPUT_EDP
:
10781 port_mask
= 1 << enc_to_dig_port(&encoder
->base
)->port
;
10783 /* the same port mustn't appear more than once */
10784 if (used_ports
& port_mask
)
10787 used_ports
|= port_mask
;
10789 case INTEL_OUTPUT_DP_MST
:
10791 1 << enc_to_mst(&encoder
->base
)->primary
->port
;
10797 drm_connector_list_iter_end(&conn_iter
);
10799 /* can't mix MST and SST/HDMI on the same port */
10800 if (used_ports
& used_mst_ports
)
10807 clear_intel_crtc_state(struct intel_crtc_state
*crtc_state
)
10809 struct drm_i915_private
*dev_priv
=
10810 to_i915(crtc_state
->base
.crtc
->dev
);
10811 struct intel_crtc_scaler_state scaler_state
;
10812 struct intel_dpll_hw_state dpll_hw_state
;
10813 struct intel_shared_dpll
*shared_dpll
;
10814 struct intel_crtc_wm_state wm_state
;
10815 bool force_thru
, ips_force_disable
;
10817 /* FIXME: before the switch to atomic started, a new pipe_config was
10818 * kzalloc'd. Code that depends on any field being zero should be
10819 * fixed, so that the crtc_state can be safely duplicated. For now,
10820 * only fields that are know to not cause problems are preserved. */
10822 scaler_state
= crtc_state
->scaler_state
;
10823 shared_dpll
= crtc_state
->shared_dpll
;
10824 dpll_hw_state
= crtc_state
->dpll_hw_state
;
10825 force_thru
= crtc_state
->pch_pfit
.force_thru
;
10826 ips_force_disable
= crtc_state
->ips_force_disable
;
10827 if (IS_G4X(dev_priv
) ||
10828 IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
10829 wm_state
= crtc_state
->wm
;
10831 /* Keep base drm_crtc_state intact, only clear our extended struct */
10832 BUILD_BUG_ON(offsetof(struct intel_crtc_state
, base
));
10833 memset(&crtc_state
->base
+ 1, 0,
10834 sizeof(*crtc_state
) - sizeof(crtc_state
->base
));
10836 crtc_state
->scaler_state
= scaler_state
;
10837 crtc_state
->shared_dpll
= shared_dpll
;
10838 crtc_state
->dpll_hw_state
= dpll_hw_state
;
10839 crtc_state
->pch_pfit
.force_thru
= force_thru
;
10840 crtc_state
->ips_force_disable
= ips_force_disable
;
10841 if (IS_G4X(dev_priv
) ||
10842 IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
10843 crtc_state
->wm
= wm_state
;
10847 intel_modeset_pipe_config(struct drm_crtc
*crtc
,
10848 struct intel_crtc_state
*pipe_config
)
10850 struct drm_atomic_state
*state
= pipe_config
->base
.state
;
10851 struct intel_encoder
*encoder
;
10852 struct drm_connector
*connector
;
10853 struct drm_connector_state
*connector_state
;
10854 int base_bpp
, ret
= -EINVAL
;
10858 clear_intel_crtc_state(pipe_config
);
10860 pipe_config
->cpu_transcoder
=
10861 (enum transcoder
) to_intel_crtc(crtc
)->pipe
;
10864 * Sanitize sync polarity flags based on requested ones. If neither
10865 * positive or negative polarity is requested, treat this as meaning
10866 * negative polarity.
10868 if (!(pipe_config
->base
.adjusted_mode
.flags
&
10869 (DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NHSYNC
)))
10870 pipe_config
->base
.adjusted_mode
.flags
|= DRM_MODE_FLAG_NHSYNC
;
10872 if (!(pipe_config
->base
.adjusted_mode
.flags
&
10873 (DRM_MODE_FLAG_PVSYNC
| DRM_MODE_FLAG_NVSYNC
)))
10874 pipe_config
->base
.adjusted_mode
.flags
|= DRM_MODE_FLAG_NVSYNC
;
10876 base_bpp
= compute_baseline_pipe_bpp(to_intel_crtc(crtc
),
10882 * Determine the real pipe dimensions. Note that stereo modes can
10883 * increase the actual pipe size due to the frame doubling and
10884 * insertion of additional space for blanks between the frame. This
10885 * is stored in the crtc timings. We use the requested mode to do this
10886 * computation to clearly distinguish it from the adjusted mode, which
10887 * can be changed by the connectors in the below retry loop.
10889 drm_mode_get_hv_timing(&pipe_config
->base
.mode
,
10890 &pipe_config
->pipe_src_w
,
10891 &pipe_config
->pipe_src_h
);
10893 for_each_new_connector_in_state(state
, connector
, connector_state
, i
) {
10894 if (connector_state
->crtc
!= crtc
)
10897 encoder
= to_intel_encoder(connector_state
->best_encoder
);
10899 if (!check_single_encoder_cloning(state
, to_intel_crtc(crtc
), encoder
)) {
10900 DRM_DEBUG_KMS("rejecting invalid cloning configuration\n");
10905 * Determine output_types before calling the .compute_config()
10906 * hooks so that the hooks can use this information safely.
10908 pipe_config
->output_types
|= 1 << encoder
->type
;
10912 /* Ensure the port clock defaults are reset when retrying. */
10913 pipe_config
->port_clock
= 0;
10914 pipe_config
->pixel_multiplier
= 1;
10916 /* Fill in default crtc timings, allow encoders to overwrite them. */
10917 drm_mode_set_crtcinfo(&pipe_config
->base
.adjusted_mode
,
10918 CRTC_STEREO_DOUBLE
);
10920 /* Pass our mode to the connectors and the CRTC to give them a chance to
10921 * adjust it according to limitations or connector properties, and also
10922 * a chance to reject the mode entirely.
10924 for_each_new_connector_in_state(state
, connector
, connector_state
, i
) {
10925 if (connector_state
->crtc
!= crtc
)
10928 encoder
= to_intel_encoder(connector_state
->best_encoder
);
10930 if (!(encoder
->compute_config(encoder
, pipe_config
, connector_state
))) {
10931 DRM_DEBUG_KMS("Encoder config failure\n");
10936 /* Set default port clock if not overwritten by the encoder. Needs to be
10937 * done afterwards in case the encoder adjusts the mode. */
10938 if (!pipe_config
->port_clock
)
10939 pipe_config
->port_clock
= pipe_config
->base
.adjusted_mode
.crtc_clock
10940 * pipe_config
->pixel_multiplier
;
10942 ret
= intel_crtc_compute_config(to_intel_crtc(crtc
), pipe_config
);
10944 DRM_DEBUG_KMS("CRTC fixup failed\n");
10948 if (ret
== RETRY
) {
10949 if (WARN(!retry
, "loop in pipe configuration computation\n")) {
10954 DRM_DEBUG_KMS("CRTC bw constrained, retrying\n");
10956 goto encoder_retry
;
10959 /* Dithering seems to not pass-through bits correctly when it should, so
10960 * only enable it on 6bpc panels and when its not a compliance
10961 * test requesting 6bpc video pattern.
10963 pipe_config
->dither
= (pipe_config
->pipe_bpp
== 6*3) &&
10964 !pipe_config
->dither_force_disable
;
10965 DRM_DEBUG_KMS("hw max bpp: %i, pipe bpp: %i, dithering: %i\n",
10966 base_bpp
, pipe_config
->pipe_bpp
, pipe_config
->dither
);
10973 intel_modeset_update_crtc_state(struct drm_atomic_state
*state
)
10975 struct drm_crtc
*crtc
;
10976 struct drm_crtc_state
*new_crtc_state
;
10979 /* Double check state. */
10980 for_each_new_crtc_in_state(state
, crtc
, new_crtc_state
, i
) {
10981 to_intel_crtc(crtc
)->config
= to_intel_crtc_state(new_crtc_state
);
10984 * Update legacy state to satisfy fbc code. This can
10985 * be removed when fbc uses the atomic state.
10987 if (drm_atomic_get_existing_plane_state(state
, crtc
->primary
)) {
10988 struct drm_plane_state
*plane_state
= crtc
->primary
->state
;
10990 crtc
->primary
->fb
= plane_state
->fb
;
10991 crtc
->x
= plane_state
->src_x
>> 16;
10992 crtc
->y
= plane_state
->src_y
>> 16;
10997 static bool intel_fuzzy_clock_check(int clock1
, int clock2
)
11001 if (clock1
== clock2
)
11004 if (!clock1
|| !clock2
)
11007 diff
= abs(clock1
- clock2
);
11009 if (((((diff
+ clock1
+ clock2
) * 100)) / (clock1
+ clock2
)) < 105)
11016 intel_compare_m_n(unsigned int m
, unsigned int n
,
11017 unsigned int m2
, unsigned int n2
,
11020 if (m
== m2
&& n
== n2
)
11023 if (exact
|| !m
|| !n
|| !m2
|| !n2
)
11026 BUILD_BUG_ON(DATA_LINK_M_N_MASK
> INT_MAX
);
11033 } else if (n
< n2
) {
11043 return intel_fuzzy_clock_check(m
, m2
);
11047 intel_compare_link_m_n(const struct intel_link_m_n
*m_n
,
11048 struct intel_link_m_n
*m2_n2
,
11051 if (m_n
->tu
== m2_n2
->tu
&&
11052 intel_compare_m_n(m_n
->gmch_m
, m_n
->gmch_n
,
11053 m2_n2
->gmch_m
, m2_n2
->gmch_n
, !adjust
) &&
11054 intel_compare_m_n(m_n
->link_m
, m_n
->link_n
,
11055 m2_n2
->link_m
, m2_n2
->link_n
, !adjust
)) {
11065 static void __printf(3, 4)
11066 pipe_config_err(bool adjust
, const char *name
, const char *format
, ...)
11069 unsigned int category
;
11070 struct va_format vaf
;
11074 level
= KERN_DEBUG
;
11075 category
= DRM_UT_KMS
;
11078 category
= DRM_UT_NONE
;
11081 va_start(args
, format
);
11085 drm_printk(level
, category
, "mismatch in %s %pV", name
, &vaf
);
11091 intel_pipe_config_compare(struct drm_i915_private
*dev_priv
,
11092 struct intel_crtc_state
*current_config
,
11093 struct intel_crtc_state
*pipe_config
,
11098 #define PIPE_CONF_CHECK_X(name) \
11099 if (current_config->name != pipe_config->name) { \
11100 pipe_config_err(adjust, __stringify(name), \
11101 "(expected 0x%08x, found 0x%08x)\n", \
11102 current_config->name, \
11103 pipe_config->name); \
11107 #define PIPE_CONF_CHECK_I(name) \
11108 if (current_config->name != pipe_config->name) { \
11109 pipe_config_err(adjust, __stringify(name), \
11110 "(expected %i, found %i)\n", \
11111 current_config->name, \
11112 pipe_config->name); \
11116 #define PIPE_CONF_CHECK_P(name) \
11117 if (current_config->name != pipe_config->name) { \
11118 pipe_config_err(adjust, __stringify(name), \
11119 "(expected %p, found %p)\n", \
11120 current_config->name, \
11121 pipe_config->name); \
11125 #define PIPE_CONF_CHECK_M_N(name) \
11126 if (!intel_compare_link_m_n(¤t_config->name, \
11127 &pipe_config->name,\
11129 pipe_config_err(adjust, __stringify(name), \
11130 "(expected tu %i gmch %i/%i link %i/%i, " \
11131 "found tu %i, gmch %i/%i link %i/%i)\n", \
11132 current_config->name.tu, \
11133 current_config->name.gmch_m, \
11134 current_config->name.gmch_n, \
11135 current_config->name.link_m, \
11136 current_config->name.link_n, \
11137 pipe_config->name.tu, \
11138 pipe_config->name.gmch_m, \
11139 pipe_config->name.gmch_n, \
11140 pipe_config->name.link_m, \
11141 pipe_config->name.link_n); \
11145 /* This is required for BDW+ where there is only one set of registers for
11146 * switching between high and low RR.
11147 * This macro can be used whenever a comparison has to be made between one
11148 * hw state and multiple sw state variables.
11150 #define PIPE_CONF_CHECK_M_N_ALT(name, alt_name) \
11151 if (!intel_compare_link_m_n(¤t_config->name, \
11152 &pipe_config->name, adjust) && \
11153 !intel_compare_link_m_n(¤t_config->alt_name, \
11154 &pipe_config->name, adjust)) { \
11155 pipe_config_err(adjust, __stringify(name), \
11156 "(expected tu %i gmch %i/%i link %i/%i, " \
11157 "or tu %i gmch %i/%i link %i/%i, " \
11158 "found tu %i, gmch %i/%i link %i/%i)\n", \
11159 current_config->name.tu, \
11160 current_config->name.gmch_m, \
11161 current_config->name.gmch_n, \
11162 current_config->name.link_m, \
11163 current_config->name.link_n, \
11164 current_config->alt_name.tu, \
11165 current_config->alt_name.gmch_m, \
11166 current_config->alt_name.gmch_n, \
11167 current_config->alt_name.link_m, \
11168 current_config->alt_name.link_n, \
11169 pipe_config->name.tu, \
11170 pipe_config->name.gmch_m, \
11171 pipe_config->name.gmch_n, \
11172 pipe_config->name.link_m, \
11173 pipe_config->name.link_n); \
11177 #define PIPE_CONF_CHECK_FLAGS(name, mask) \
11178 if ((current_config->name ^ pipe_config->name) & (mask)) { \
11179 pipe_config_err(adjust, __stringify(name), \
11180 "(%x) (expected %i, found %i)\n", \
11182 current_config->name & (mask), \
11183 pipe_config->name & (mask)); \
11187 #define PIPE_CONF_CHECK_CLOCK_FUZZY(name) \
11188 if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \
11189 pipe_config_err(adjust, __stringify(name), \
11190 "(expected %i, found %i)\n", \
11191 current_config->name, \
11192 pipe_config->name); \
11196 #define PIPE_CONF_QUIRK(quirk) \
11197 ((current_config->quirks | pipe_config->quirks) & (quirk))
11199 PIPE_CONF_CHECK_I(cpu_transcoder
);
11201 PIPE_CONF_CHECK_I(has_pch_encoder
);
11202 PIPE_CONF_CHECK_I(fdi_lanes
);
11203 PIPE_CONF_CHECK_M_N(fdi_m_n
);
11205 PIPE_CONF_CHECK_I(lane_count
);
11206 PIPE_CONF_CHECK_X(lane_lat_optim_mask
);
11208 if (INTEL_GEN(dev_priv
) < 8) {
11209 PIPE_CONF_CHECK_M_N(dp_m_n
);
11211 if (current_config
->has_drrs
)
11212 PIPE_CONF_CHECK_M_N(dp_m2_n2
);
11214 PIPE_CONF_CHECK_M_N_ALT(dp_m_n
, dp_m2_n2
);
11216 PIPE_CONF_CHECK_X(output_types
);
11218 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hdisplay
);
11219 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_htotal
);
11220 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hblank_start
);
11221 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hblank_end
);
11222 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hsync_start
);
11223 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hsync_end
);
11225 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vdisplay
);
11226 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vtotal
);
11227 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vblank_start
);
11228 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vblank_end
);
11229 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vsync_start
);
11230 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vsync_end
);
11232 PIPE_CONF_CHECK_I(pixel_multiplier
);
11233 PIPE_CONF_CHECK_I(has_hdmi_sink
);
11234 if ((INTEL_GEN(dev_priv
) < 8 && !IS_HASWELL(dev_priv
)) ||
11235 IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
11236 PIPE_CONF_CHECK_I(limited_color_range
);
11238 PIPE_CONF_CHECK_I(hdmi_scrambling
);
11239 PIPE_CONF_CHECK_I(hdmi_high_tmds_clock_ratio
);
11240 PIPE_CONF_CHECK_I(has_infoframe
);
11241 PIPE_CONF_CHECK_I(ycbcr420
);
11243 PIPE_CONF_CHECK_I(has_audio
);
11245 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
11246 DRM_MODE_FLAG_INTERLACE
);
11248 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS
)) {
11249 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
11250 DRM_MODE_FLAG_PHSYNC
);
11251 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
11252 DRM_MODE_FLAG_NHSYNC
);
11253 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
11254 DRM_MODE_FLAG_PVSYNC
);
11255 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
11256 DRM_MODE_FLAG_NVSYNC
);
11259 PIPE_CONF_CHECK_X(gmch_pfit
.control
);
11260 /* pfit ratios are autocomputed by the hw on gen4+ */
11261 if (INTEL_GEN(dev_priv
) < 4)
11262 PIPE_CONF_CHECK_X(gmch_pfit
.pgm_ratios
);
11263 PIPE_CONF_CHECK_X(gmch_pfit
.lvds_border_bits
);
11266 PIPE_CONF_CHECK_I(pipe_src_w
);
11267 PIPE_CONF_CHECK_I(pipe_src_h
);
11269 PIPE_CONF_CHECK_I(pch_pfit
.enabled
);
11270 if (current_config
->pch_pfit
.enabled
) {
11271 PIPE_CONF_CHECK_X(pch_pfit
.pos
);
11272 PIPE_CONF_CHECK_X(pch_pfit
.size
);
11275 PIPE_CONF_CHECK_I(scaler_state
.scaler_id
);
11276 PIPE_CONF_CHECK_CLOCK_FUZZY(pixel_rate
);
11279 /* BDW+ don't expose a synchronous way to read the state */
11280 if (IS_HASWELL(dev_priv
))
11281 PIPE_CONF_CHECK_I(ips_enabled
);
11283 PIPE_CONF_CHECK_I(double_wide
);
11285 PIPE_CONF_CHECK_P(shared_dpll
);
11286 PIPE_CONF_CHECK_X(dpll_hw_state
.dpll
);
11287 PIPE_CONF_CHECK_X(dpll_hw_state
.dpll_md
);
11288 PIPE_CONF_CHECK_X(dpll_hw_state
.fp0
);
11289 PIPE_CONF_CHECK_X(dpll_hw_state
.fp1
);
11290 PIPE_CONF_CHECK_X(dpll_hw_state
.wrpll
);
11291 PIPE_CONF_CHECK_X(dpll_hw_state
.spll
);
11292 PIPE_CONF_CHECK_X(dpll_hw_state
.ctrl1
);
11293 PIPE_CONF_CHECK_X(dpll_hw_state
.cfgcr1
);
11294 PIPE_CONF_CHECK_X(dpll_hw_state
.cfgcr2
);
11295 PIPE_CONF_CHECK_X(dpll_hw_state
.cfgcr0
);
11296 PIPE_CONF_CHECK_X(dpll_hw_state
.ebb0
);
11297 PIPE_CONF_CHECK_X(dpll_hw_state
.ebb4
);
11298 PIPE_CONF_CHECK_X(dpll_hw_state
.pll0
);
11299 PIPE_CONF_CHECK_X(dpll_hw_state
.pll1
);
11300 PIPE_CONF_CHECK_X(dpll_hw_state
.pll2
);
11301 PIPE_CONF_CHECK_X(dpll_hw_state
.pll3
);
11302 PIPE_CONF_CHECK_X(dpll_hw_state
.pll6
);
11303 PIPE_CONF_CHECK_X(dpll_hw_state
.pll8
);
11304 PIPE_CONF_CHECK_X(dpll_hw_state
.pll9
);
11305 PIPE_CONF_CHECK_X(dpll_hw_state
.pll10
);
11306 PIPE_CONF_CHECK_X(dpll_hw_state
.pcsdw12
);
11308 PIPE_CONF_CHECK_X(dsi_pll
.ctrl
);
11309 PIPE_CONF_CHECK_X(dsi_pll
.div
);
11311 if (IS_G4X(dev_priv
) || INTEL_GEN(dev_priv
) >= 5)
11312 PIPE_CONF_CHECK_I(pipe_bpp
);
11314 PIPE_CONF_CHECK_CLOCK_FUZZY(base
.adjusted_mode
.crtc_clock
);
11315 PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock
);
11317 #undef PIPE_CONF_CHECK_X
11318 #undef PIPE_CONF_CHECK_I
11319 #undef PIPE_CONF_CHECK_P
11320 #undef PIPE_CONF_CHECK_FLAGS
11321 #undef PIPE_CONF_CHECK_CLOCK_FUZZY
11322 #undef PIPE_CONF_QUIRK
11327 static void intel_pipe_config_sanity_check(struct drm_i915_private
*dev_priv
,
11328 const struct intel_crtc_state
*pipe_config
)
11330 if (pipe_config
->has_pch_encoder
) {
11331 int fdi_dotclock
= intel_dotclock_calculate(intel_fdi_link_freq(dev_priv
, pipe_config
),
11332 &pipe_config
->fdi_m_n
);
11333 int dotclock
= pipe_config
->base
.adjusted_mode
.crtc_clock
;
11336 * FDI already provided one idea for the dotclock.
11337 * Yell if the encoder disagrees.
11339 WARN(!intel_fuzzy_clock_check(fdi_dotclock
, dotclock
),
11340 "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n",
11341 fdi_dotclock
, dotclock
);
11345 static void verify_wm_state(struct drm_crtc
*crtc
,
11346 struct drm_crtc_state
*new_state
)
11348 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
11349 struct skl_ddb_allocation hw_ddb
, *sw_ddb
;
11350 struct skl_pipe_wm hw_wm
, *sw_wm
;
11351 struct skl_plane_wm
*hw_plane_wm
, *sw_plane_wm
;
11352 struct skl_ddb_entry
*hw_ddb_entry
, *sw_ddb_entry
;
11353 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11354 const enum pipe pipe
= intel_crtc
->pipe
;
11355 int plane
, level
, max_level
= ilk_wm_max_level(dev_priv
);
11357 if (INTEL_GEN(dev_priv
) < 9 || !new_state
->active
)
11360 skl_pipe_wm_get_hw_state(crtc
, &hw_wm
);
11361 sw_wm
= &to_intel_crtc_state(new_state
)->wm
.skl
.optimal
;
11363 skl_ddb_get_hw_state(dev_priv
, &hw_ddb
);
11364 sw_ddb
= &dev_priv
->wm
.skl_hw
.ddb
;
11367 for_each_universal_plane(dev_priv
, pipe
, plane
) {
11368 hw_plane_wm
= &hw_wm
.planes
[plane
];
11369 sw_plane_wm
= &sw_wm
->planes
[plane
];
11372 for (level
= 0; level
<= max_level
; level
++) {
11373 if (skl_wm_level_equals(&hw_plane_wm
->wm
[level
],
11374 &sw_plane_wm
->wm
[level
]))
11377 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",
11378 pipe_name(pipe
), plane
+ 1, level
,
11379 sw_plane_wm
->wm
[level
].plane_en
,
11380 sw_plane_wm
->wm
[level
].plane_res_b
,
11381 sw_plane_wm
->wm
[level
].plane_res_l
,
11382 hw_plane_wm
->wm
[level
].plane_en
,
11383 hw_plane_wm
->wm
[level
].plane_res_b
,
11384 hw_plane_wm
->wm
[level
].plane_res_l
);
11387 if (!skl_wm_level_equals(&hw_plane_wm
->trans_wm
,
11388 &sw_plane_wm
->trans_wm
)) {
11389 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",
11390 pipe_name(pipe
), plane
+ 1,
11391 sw_plane_wm
->trans_wm
.plane_en
,
11392 sw_plane_wm
->trans_wm
.plane_res_b
,
11393 sw_plane_wm
->trans_wm
.plane_res_l
,
11394 hw_plane_wm
->trans_wm
.plane_en
,
11395 hw_plane_wm
->trans_wm
.plane_res_b
,
11396 hw_plane_wm
->trans_wm
.plane_res_l
);
11400 hw_ddb_entry
= &hw_ddb
.plane
[pipe
][plane
];
11401 sw_ddb_entry
= &sw_ddb
->plane
[pipe
][plane
];
11403 if (!skl_ddb_entry_equal(hw_ddb_entry
, sw_ddb_entry
)) {
11404 DRM_ERROR("mismatch in DDB state pipe %c plane %d (expected (%u,%u), found (%u,%u))\n",
11405 pipe_name(pipe
), plane
+ 1,
11406 sw_ddb_entry
->start
, sw_ddb_entry
->end
,
11407 hw_ddb_entry
->start
, hw_ddb_entry
->end
);
11413 * If the cursor plane isn't active, we may not have updated it's ddb
11414 * allocation. In that case since the ddb allocation will be updated
11415 * once the plane becomes visible, we can skip this check
11418 hw_plane_wm
= &hw_wm
.planes
[PLANE_CURSOR
];
11419 sw_plane_wm
= &sw_wm
->planes
[PLANE_CURSOR
];
11422 for (level
= 0; level
<= max_level
; level
++) {
11423 if (skl_wm_level_equals(&hw_plane_wm
->wm
[level
],
11424 &sw_plane_wm
->wm
[level
]))
11427 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",
11428 pipe_name(pipe
), level
,
11429 sw_plane_wm
->wm
[level
].plane_en
,
11430 sw_plane_wm
->wm
[level
].plane_res_b
,
11431 sw_plane_wm
->wm
[level
].plane_res_l
,
11432 hw_plane_wm
->wm
[level
].plane_en
,
11433 hw_plane_wm
->wm
[level
].plane_res_b
,
11434 hw_plane_wm
->wm
[level
].plane_res_l
);
11437 if (!skl_wm_level_equals(&hw_plane_wm
->trans_wm
,
11438 &sw_plane_wm
->trans_wm
)) {
11439 DRM_ERROR("mismatch in trans WM pipe %c cursor (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
11441 sw_plane_wm
->trans_wm
.plane_en
,
11442 sw_plane_wm
->trans_wm
.plane_res_b
,
11443 sw_plane_wm
->trans_wm
.plane_res_l
,
11444 hw_plane_wm
->trans_wm
.plane_en
,
11445 hw_plane_wm
->trans_wm
.plane_res_b
,
11446 hw_plane_wm
->trans_wm
.plane_res_l
);
11450 hw_ddb_entry
= &hw_ddb
.plane
[pipe
][PLANE_CURSOR
];
11451 sw_ddb_entry
= &sw_ddb
->plane
[pipe
][PLANE_CURSOR
];
11453 if (!skl_ddb_entry_equal(hw_ddb_entry
, sw_ddb_entry
)) {
11454 DRM_ERROR("mismatch in DDB state pipe %c cursor (expected (%u,%u), found (%u,%u))\n",
11456 sw_ddb_entry
->start
, sw_ddb_entry
->end
,
11457 hw_ddb_entry
->start
, hw_ddb_entry
->end
);
11463 verify_connector_state(struct drm_device
*dev
,
11464 struct drm_atomic_state
*state
,
11465 struct drm_crtc
*crtc
)
11467 struct drm_connector
*connector
;
11468 struct drm_connector_state
*new_conn_state
;
11471 for_each_new_connector_in_state(state
, connector
, new_conn_state
, i
) {
11472 struct drm_encoder
*encoder
= connector
->encoder
;
11473 struct drm_crtc_state
*crtc_state
= NULL
;
11475 if (new_conn_state
->crtc
!= crtc
)
11479 crtc_state
= drm_atomic_get_new_crtc_state(state
, new_conn_state
->crtc
);
11481 intel_connector_verify_state(crtc_state
, new_conn_state
);
11483 I915_STATE_WARN(new_conn_state
->best_encoder
!= encoder
,
11484 "connector's atomic encoder doesn't match legacy encoder\n");
11489 verify_encoder_state(struct drm_device
*dev
, struct drm_atomic_state
*state
)
11491 struct intel_encoder
*encoder
;
11492 struct drm_connector
*connector
;
11493 struct drm_connector_state
*old_conn_state
, *new_conn_state
;
11496 for_each_intel_encoder(dev
, encoder
) {
11497 bool enabled
= false, found
= false;
11500 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
11501 encoder
->base
.base
.id
,
11502 encoder
->base
.name
);
11504 for_each_oldnew_connector_in_state(state
, connector
, old_conn_state
,
11505 new_conn_state
, i
) {
11506 if (old_conn_state
->best_encoder
== &encoder
->base
)
11509 if (new_conn_state
->best_encoder
!= &encoder
->base
)
11511 found
= enabled
= true;
11513 I915_STATE_WARN(new_conn_state
->crtc
!=
11514 encoder
->base
.crtc
,
11515 "connector's crtc doesn't match encoder crtc\n");
11521 I915_STATE_WARN(!!encoder
->base
.crtc
!= enabled
,
11522 "encoder's enabled state mismatch "
11523 "(expected %i, found %i)\n",
11524 !!encoder
->base
.crtc
, enabled
);
11526 if (!encoder
->base
.crtc
) {
11529 active
= encoder
->get_hw_state(encoder
, &pipe
);
11530 I915_STATE_WARN(active
,
11531 "encoder detached but still enabled on pipe %c.\n",
11538 verify_crtc_state(struct drm_crtc
*crtc
,
11539 struct drm_crtc_state
*old_crtc_state
,
11540 struct drm_crtc_state
*new_crtc_state
)
11542 struct drm_device
*dev
= crtc
->dev
;
11543 struct drm_i915_private
*dev_priv
= to_i915(dev
);
11544 struct intel_encoder
*encoder
;
11545 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11546 struct intel_crtc_state
*pipe_config
, *sw_config
;
11547 struct drm_atomic_state
*old_state
;
11550 old_state
= old_crtc_state
->state
;
11551 __drm_atomic_helper_crtc_destroy_state(old_crtc_state
);
11552 pipe_config
= to_intel_crtc_state(old_crtc_state
);
11553 memset(pipe_config
, 0, sizeof(*pipe_config
));
11554 pipe_config
->base
.crtc
= crtc
;
11555 pipe_config
->base
.state
= old_state
;
11557 DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc
->base
.id
, crtc
->name
);
11559 active
= dev_priv
->display
.get_pipe_config(intel_crtc
, pipe_config
);
11561 /* we keep both pipes enabled on 830 */
11562 if (IS_I830(dev_priv
))
11563 active
= new_crtc_state
->active
;
11565 I915_STATE_WARN(new_crtc_state
->active
!= active
,
11566 "crtc active state doesn't match with hw state "
11567 "(expected %i, found %i)\n", new_crtc_state
->active
, active
);
11569 I915_STATE_WARN(intel_crtc
->active
!= new_crtc_state
->active
,
11570 "transitional active state does not match atomic hw state "
11571 "(expected %i, found %i)\n", new_crtc_state
->active
, intel_crtc
->active
);
11573 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
11576 active
= encoder
->get_hw_state(encoder
, &pipe
);
11577 I915_STATE_WARN(active
!= new_crtc_state
->active
,
11578 "[ENCODER:%i] active %i with crtc active %i\n",
11579 encoder
->base
.base
.id
, active
, new_crtc_state
->active
);
11581 I915_STATE_WARN(active
&& intel_crtc
->pipe
!= pipe
,
11582 "Encoder connected to wrong pipe %c\n",
11586 pipe_config
->output_types
|= 1 << encoder
->type
;
11587 encoder
->get_config(encoder
, pipe_config
);
11591 intel_crtc_compute_pixel_rate(pipe_config
);
11593 if (!new_crtc_state
->active
)
11596 intel_pipe_config_sanity_check(dev_priv
, pipe_config
);
11598 sw_config
= to_intel_crtc_state(new_crtc_state
);
11599 if (!intel_pipe_config_compare(dev_priv
, sw_config
,
11600 pipe_config
, false)) {
11601 I915_STATE_WARN(1, "pipe state doesn't match!\n");
11602 intel_dump_pipe_config(intel_crtc
, pipe_config
,
11604 intel_dump_pipe_config(intel_crtc
, sw_config
,
11610 verify_single_dpll_state(struct drm_i915_private
*dev_priv
,
11611 struct intel_shared_dpll
*pll
,
11612 struct drm_crtc
*crtc
,
11613 struct drm_crtc_state
*new_state
)
11615 struct intel_dpll_hw_state dpll_hw_state
;
11616 unsigned crtc_mask
;
11619 memset(&dpll_hw_state
, 0, sizeof(dpll_hw_state
));
11621 DRM_DEBUG_KMS("%s\n", pll
->name
);
11623 active
= pll
->funcs
.get_hw_state(dev_priv
, pll
, &dpll_hw_state
);
11625 if (!(pll
->flags
& INTEL_DPLL_ALWAYS_ON
)) {
11626 I915_STATE_WARN(!pll
->on
&& pll
->active_mask
,
11627 "pll in active use but not on in sw tracking\n");
11628 I915_STATE_WARN(pll
->on
&& !pll
->active_mask
,
11629 "pll is on but not used by any active crtc\n");
11630 I915_STATE_WARN(pll
->on
!= active
,
11631 "pll on state mismatch (expected %i, found %i)\n",
11636 I915_STATE_WARN(pll
->active_mask
& ~pll
->state
.crtc_mask
,
11637 "more active pll users than references: %x vs %x\n",
11638 pll
->active_mask
, pll
->state
.crtc_mask
);
11643 crtc_mask
= 1 << drm_crtc_index(crtc
);
11645 if (new_state
->active
)
11646 I915_STATE_WARN(!(pll
->active_mask
& crtc_mask
),
11647 "pll active mismatch (expected pipe %c in active mask 0x%02x)\n",
11648 pipe_name(drm_crtc_index(crtc
)), pll
->active_mask
);
11650 I915_STATE_WARN(pll
->active_mask
& crtc_mask
,
11651 "pll active mismatch (didn't expect pipe %c in active mask 0x%02x)\n",
11652 pipe_name(drm_crtc_index(crtc
)), pll
->active_mask
);
11654 I915_STATE_WARN(!(pll
->state
.crtc_mask
& crtc_mask
),
11655 "pll enabled crtcs mismatch (expected 0x%x in 0x%02x)\n",
11656 crtc_mask
, pll
->state
.crtc_mask
);
11658 I915_STATE_WARN(pll
->on
&& memcmp(&pll
->state
.hw_state
,
11660 sizeof(dpll_hw_state
)),
11661 "pll hw state mismatch\n");
11665 verify_shared_dpll_state(struct drm_device
*dev
, struct drm_crtc
*crtc
,
11666 struct drm_crtc_state
*old_crtc_state
,
11667 struct drm_crtc_state
*new_crtc_state
)
11669 struct drm_i915_private
*dev_priv
= to_i915(dev
);
11670 struct intel_crtc_state
*old_state
= to_intel_crtc_state(old_crtc_state
);
11671 struct intel_crtc_state
*new_state
= to_intel_crtc_state(new_crtc_state
);
11673 if (new_state
->shared_dpll
)
11674 verify_single_dpll_state(dev_priv
, new_state
->shared_dpll
, crtc
, new_crtc_state
);
11676 if (old_state
->shared_dpll
&&
11677 old_state
->shared_dpll
!= new_state
->shared_dpll
) {
11678 unsigned crtc_mask
= 1 << drm_crtc_index(crtc
);
11679 struct intel_shared_dpll
*pll
= old_state
->shared_dpll
;
11681 I915_STATE_WARN(pll
->active_mask
& crtc_mask
,
11682 "pll active mismatch (didn't expect pipe %c in active mask)\n",
11683 pipe_name(drm_crtc_index(crtc
)));
11684 I915_STATE_WARN(pll
->state
.crtc_mask
& crtc_mask
,
11685 "pll enabled crtcs mismatch (found %x in enabled mask)\n",
11686 pipe_name(drm_crtc_index(crtc
)));
11691 intel_modeset_verify_crtc(struct drm_crtc
*crtc
,
11692 struct drm_atomic_state
*state
,
11693 struct drm_crtc_state
*old_state
,
11694 struct drm_crtc_state
*new_state
)
11696 if (!needs_modeset(new_state
) &&
11697 !to_intel_crtc_state(new_state
)->update_pipe
)
11700 verify_wm_state(crtc
, new_state
);
11701 verify_connector_state(crtc
->dev
, state
, crtc
);
11702 verify_crtc_state(crtc
, old_state
, new_state
);
11703 verify_shared_dpll_state(crtc
->dev
, crtc
, old_state
, new_state
);
11707 verify_disabled_dpll_state(struct drm_device
*dev
)
11709 struct drm_i915_private
*dev_priv
= to_i915(dev
);
11712 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++)
11713 verify_single_dpll_state(dev_priv
, &dev_priv
->shared_dplls
[i
], NULL
, NULL
);
11717 intel_modeset_verify_disabled(struct drm_device
*dev
,
11718 struct drm_atomic_state
*state
)
11720 verify_encoder_state(dev
, state
);
11721 verify_connector_state(dev
, state
, NULL
);
11722 verify_disabled_dpll_state(dev
);
11725 static void update_scanline_offset(struct intel_crtc
*crtc
)
11727 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
11730 * The scanline counter increments at the leading edge of hsync.
11732 * On most platforms it starts counting from vtotal-1 on the
11733 * first active line. That means the scanline counter value is
11734 * always one less than what we would expect. Ie. just after
11735 * start of vblank, which also occurs at start of hsync (on the
11736 * last active line), the scanline counter will read vblank_start-1.
11738 * On gen2 the scanline counter starts counting from 1 instead
11739 * of vtotal-1, so we have to subtract one (or rather add vtotal-1
11740 * to keep the value positive), instead of adding one.
11742 * On HSW+ the behaviour of the scanline counter depends on the output
11743 * type. For DP ports it behaves like most other platforms, but on HDMI
11744 * there's an extra 1 line difference. So we need to add two instead of
11745 * one to the value.
11747 * On VLV/CHV DSI the scanline counter would appear to increment
11748 * approx. 1/3 of a scanline before start of vblank. Unfortunately
11749 * that means we can't tell whether we're in vblank or not while
11750 * we're on that particular line. We must still set scanline_offset
11751 * to 1 so that the vblank timestamps come out correct when we query
11752 * the scanline counter from within the vblank interrupt handler.
11753 * However if queried just before the start of vblank we'll get an
11754 * answer that's slightly in the future.
11756 if (IS_GEN2(dev_priv
)) {
11757 const struct drm_display_mode
*adjusted_mode
= &crtc
->config
->base
.adjusted_mode
;
11760 vtotal
= adjusted_mode
->crtc_vtotal
;
11761 if (adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
)
11764 crtc
->scanline_offset
= vtotal
- 1;
11765 } else if (HAS_DDI(dev_priv
) &&
11766 intel_crtc_has_type(crtc
->config
, INTEL_OUTPUT_HDMI
)) {
11767 crtc
->scanline_offset
= 2;
11769 crtc
->scanline_offset
= 1;
11772 static void intel_modeset_clear_plls(struct drm_atomic_state
*state
)
11774 struct drm_device
*dev
= state
->dev
;
11775 struct drm_i915_private
*dev_priv
= to_i915(dev
);
11776 struct drm_crtc
*crtc
;
11777 struct drm_crtc_state
*old_crtc_state
, *new_crtc_state
;
11780 if (!dev_priv
->display
.crtc_compute_clock
)
11783 for_each_oldnew_crtc_in_state(state
, crtc
, old_crtc_state
, new_crtc_state
, i
) {
11784 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11785 struct intel_shared_dpll
*old_dpll
=
11786 to_intel_crtc_state(old_crtc_state
)->shared_dpll
;
11788 if (!needs_modeset(new_crtc_state
))
11791 to_intel_crtc_state(new_crtc_state
)->shared_dpll
= NULL
;
11796 intel_release_shared_dpll(old_dpll
, intel_crtc
, state
);
11801 * This implements the workaround described in the "notes" section of the mode
11802 * set sequence documentation. When going from no pipes or single pipe to
11803 * multiple pipes, and planes are enabled after the pipe, we need to wait at
11804 * least 2 vblanks on the first pipe before enabling planes on the second pipe.
11806 static int haswell_mode_set_planes_workaround(struct drm_atomic_state
*state
)
11808 struct drm_crtc_state
*crtc_state
;
11809 struct intel_crtc
*intel_crtc
;
11810 struct drm_crtc
*crtc
;
11811 struct intel_crtc_state
*first_crtc_state
= NULL
;
11812 struct intel_crtc_state
*other_crtc_state
= NULL
;
11813 enum pipe first_pipe
= INVALID_PIPE
, enabled_pipe
= INVALID_PIPE
;
11816 /* look at all crtc's that are going to be enabled in during modeset */
11817 for_each_new_crtc_in_state(state
, crtc
, crtc_state
, i
) {
11818 intel_crtc
= to_intel_crtc(crtc
);
11820 if (!crtc_state
->active
|| !needs_modeset(crtc_state
))
11823 if (first_crtc_state
) {
11824 other_crtc_state
= to_intel_crtc_state(crtc_state
);
11827 first_crtc_state
= to_intel_crtc_state(crtc_state
);
11828 first_pipe
= intel_crtc
->pipe
;
11832 /* No workaround needed? */
11833 if (!first_crtc_state
)
11836 /* w/a possibly needed, check how many crtc's are already enabled. */
11837 for_each_intel_crtc(state
->dev
, intel_crtc
) {
11838 struct intel_crtc_state
*pipe_config
;
11840 pipe_config
= intel_atomic_get_crtc_state(state
, intel_crtc
);
11841 if (IS_ERR(pipe_config
))
11842 return PTR_ERR(pipe_config
);
11844 pipe_config
->hsw_workaround_pipe
= INVALID_PIPE
;
11846 if (!pipe_config
->base
.active
||
11847 needs_modeset(&pipe_config
->base
))
11850 /* 2 or more enabled crtcs means no need for w/a */
11851 if (enabled_pipe
!= INVALID_PIPE
)
11854 enabled_pipe
= intel_crtc
->pipe
;
11857 if (enabled_pipe
!= INVALID_PIPE
)
11858 first_crtc_state
->hsw_workaround_pipe
= enabled_pipe
;
11859 else if (other_crtc_state
)
11860 other_crtc_state
->hsw_workaround_pipe
= first_pipe
;
11865 static int intel_lock_all_pipes(struct drm_atomic_state
*state
)
11867 struct drm_crtc
*crtc
;
11869 /* Add all pipes to the state */
11870 for_each_crtc(state
->dev
, crtc
) {
11871 struct drm_crtc_state
*crtc_state
;
11873 crtc_state
= drm_atomic_get_crtc_state(state
, crtc
);
11874 if (IS_ERR(crtc_state
))
11875 return PTR_ERR(crtc_state
);
11881 static int intel_modeset_all_pipes(struct drm_atomic_state
*state
)
11883 struct drm_crtc
*crtc
;
11886 * Add all pipes to the state, and force
11887 * a modeset on all the active ones.
11889 for_each_crtc(state
->dev
, crtc
) {
11890 struct drm_crtc_state
*crtc_state
;
11893 crtc_state
= drm_atomic_get_crtc_state(state
, crtc
);
11894 if (IS_ERR(crtc_state
))
11895 return PTR_ERR(crtc_state
);
11897 if (!crtc_state
->active
|| needs_modeset(crtc_state
))
11900 crtc_state
->mode_changed
= true;
11902 ret
= drm_atomic_add_affected_connectors(state
, crtc
);
11906 ret
= drm_atomic_add_affected_planes(state
, crtc
);
11914 static int intel_modeset_checks(struct drm_atomic_state
*state
)
11916 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
11917 struct drm_i915_private
*dev_priv
= to_i915(state
->dev
);
11918 struct drm_crtc
*crtc
;
11919 struct drm_crtc_state
*old_crtc_state
, *new_crtc_state
;
11922 if (!check_digital_port_conflicts(state
)) {
11923 DRM_DEBUG_KMS("rejecting conflicting digital port configuration\n");
11927 intel_state
->modeset
= true;
11928 intel_state
->active_crtcs
= dev_priv
->active_crtcs
;
11929 intel_state
->cdclk
.logical
= dev_priv
->cdclk
.logical
;
11930 intel_state
->cdclk
.actual
= dev_priv
->cdclk
.actual
;
11932 for_each_oldnew_crtc_in_state(state
, crtc
, old_crtc_state
, new_crtc_state
, i
) {
11933 if (new_crtc_state
->active
)
11934 intel_state
->active_crtcs
|= 1 << i
;
11936 intel_state
->active_crtcs
&= ~(1 << i
);
11938 if (old_crtc_state
->active
!= new_crtc_state
->active
)
11939 intel_state
->active_pipe_changes
|= drm_crtc_mask(crtc
);
11943 * See if the config requires any additional preparation, e.g.
11944 * to adjust global state with pipes off. We need to do this
11945 * here so we can get the modeset_pipe updated config for the new
11946 * mode set on this crtc. For other crtcs we need to use the
11947 * adjusted_mode bits in the crtc directly.
11949 if (dev_priv
->display
.modeset_calc_cdclk
) {
11950 ret
= dev_priv
->display
.modeset_calc_cdclk(state
);
11955 * Writes to dev_priv->cdclk.logical must protected by
11956 * holding all the crtc locks, even if we don't end up
11957 * touching the hardware
11959 if (!intel_cdclk_state_compare(&dev_priv
->cdclk
.logical
,
11960 &intel_state
->cdclk
.logical
)) {
11961 ret
= intel_lock_all_pipes(state
);
11966 /* All pipes must be switched off while we change the cdclk. */
11967 if (!intel_cdclk_state_compare(&dev_priv
->cdclk
.actual
,
11968 &intel_state
->cdclk
.actual
)) {
11969 ret
= intel_modeset_all_pipes(state
);
11974 DRM_DEBUG_KMS("New cdclk calculated to be logical %u kHz, actual %u kHz\n",
11975 intel_state
->cdclk
.logical
.cdclk
,
11976 intel_state
->cdclk
.actual
.cdclk
);
11978 to_intel_atomic_state(state
)->cdclk
.logical
= dev_priv
->cdclk
.logical
;
11981 intel_modeset_clear_plls(state
);
11983 if (IS_HASWELL(dev_priv
))
11984 return haswell_mode_set_planes_workaround(state
);
11990 * Handle calculation of various watermark data at the end of the atomic check
11991 * phase. The code here should be run after the per-crtc and per-plane 'check'
11992 * handlers to ensure that all derived state has been updated.
11994 static int calc_watermark_data(struct drm_atomic_state
*state
)
11996 struct drm_device
*dev
= state
->dev
;
11997 struct drm_i915_private
*dev_priv
= to_i915(dev
);
11999 /* Is there platform-specific watermark information to calculate? */
12000 if (dev_priv
->display
.compute_global_watermarks
)
12001 return dev_priv
->display
.compute_global_watermarks(state
);
12007 * intel_atomic_check - validate state object
12009 * @state: state to validate
12011 static int intel_atomic_check(struct drm_device
*dev
,
12012 struct drm_atomic_state
*state
)
12014 struct drm_i915_private
*dev_priv
= to_i915(dev
);
12015 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
12016 struct drm_crtc
*crtc
;
12017 struct drm_crtc_state
*old_crtc_state
, *crtc_state
;
12019 bool any_ms
= false;
12021 ret
= drm_atomic_helper_check_modeset(dev
, state
);
12025 for_each_oldnew_crtc_in_state(state
, crtc
, old_crtc_state
, crtc_state
, i
) {
12026 struct intel_crtc_state
*pipe_config
=
12027 to_intel_crtc_state(crtc_state
);
12029 /* Catch I915_MODE_FLAG_INHERITED */
12030 if (crtc_state
->mode
.private_flags
!= old_crtc_state
->mode
.private_flags
)
12031 crtc_state
->mode_changed
= true;
12033 if (!needs_modeset(crtc_state
))
12036 if (!crtc_state
->enable
) {
12041 /* FIXME: For only active_changed we shouldn't need to do any
12042 * state recomputation at all. */
12044 ret
= drm_atomic_add_affected_connectors(state
, crtc
);
12048 ret
= intel_modeset_pipe_config(crtc
, pipe_config
);
12050 intel_dump_pipe_config(to_intel_crtc(crtc
),
12051 pipe_config
, "[failed]");
12055 if (i915_modparams
.fastboot
&&
12056 intel_pipe_config_compare(dev_priv
,
12057 to_intel_crtc_state(old_crtc_state
),
12058 pipe_config
, true)) {
12059 crtc_state
->mode_changed
= false;
12060 pipe_config
->update_pipe
= true;
12063 if (needs_modeset(crtc_state
))
12066 ret
= drm_atomic_add_affected_planes(state
, crtc
);
12070 intel_dump_pipe_config(to_intel_crtc(crtc
), pipe_config
,
12071 needs_modeset(crtc_state
) ?
12072 "[modeset]" : "[fastset]");
12076 ret
= intel_modeset_checks(state
);
12081 intel_state
->cdclk
.logical
= dev_priv
->cdclk
.logical
;
12084 ret
= drm_atomic_helper_check_planes(dev
, state
);
12088 intel_fbc_choose_crtc(dev_priv
, state
);
12089 return calc_watermark_data(state
);
12092 static int intel_atomic_prepare_commit(struct drm_device
*dev
,
12093 struct drm_atomic_state
*state
)
12095 return drm_atomic_helper_prepare_planes(dev
, state
);
12098 u32
intel_crtc_get_vblank_counter(struct intel_crtc
*crtc
)
12100 struct drm_device
*dev
= crtc
->base
.dev
;
12102 if (!dev
->max_vblank_count
)
12103 return drm_crtc_accurate_vblank_count(&crtc
->base
);
12105 return dev
->driver
->get_vblank_counter(dev
, crtc
->pipe
);
12108 static void intel_update_crtc(struct drm_crtc
*crtc
,
12109 struct drm_atomic_state
*state
,
12110 struct drm_crtc_state
*old_crtc_state
,
12111 struct drm_crtc_state
*new_crtc_state
)
12113 struct drm_device
*dev
= crtc
->dev
;
12114 struct drm_i915_private
*dev_priv
= to_i915(dev
);
12115 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
12116 struct intel_crtc_state
*pipe_config
= to_intel_crtc_state(new_crtc_state
);
12117 bool modeset
= needs_modeset(new_crtc_state
);
12120 update_scanline_offset(intel_crtc
);
12121 dev_priv
->display
.crtc_enable(pipe_config
, state
);
12123 intel_pre_plane_update(to_intel_crtc_state(old_crtc_state
),
12127 if (drm_atomic_get_existing_plane_state(state
, crtc
->primary
)) {
12129 intel_crtc
, pipe_config
,
12130 to_intel_plane_state(crtc
->primary
->state
));
12133 drm_atomic_helper_commit_planes_on_crtc(old_crtc_state
);
12136 static void intel_update_crtcs(struct drm_atomic_state
*state
)
12138 struct drm_crtc
*crtc
;
12139 struct drm_crtc_state
*old_crtc_state
, *new_crtc_state
;
12142 for_each_oldnew_crtc_in_state(state
, crtc
, old_crtc_state
, new_crtc_state
, i
) {
12143 if (!new_crtc_state
->active
)
12146 intel_update_crtc(crtc
, state
, old_crtc_state
,
12151 static void skl_update_crtcs(struct drm_atomic_state
*state
)
12153 struct drm_i915_private
*dev_priv
= to_i915(state
->dev
);
12154 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
12155 struct drm_crtc
*crtc
;
12156 struct intel_crtc
*intel_crtc
;
12157 struct drm_crtc_state
*old_crtc_state
, *new_crtc_state
;
12158 struct intel_crtc_state
*cstate
;
12159 unsigned int updated
= 0;
12164 const struct skl_ddb_entry
*entries
[I915_MAX_PIPES
] = {};
12166 for_each_oldnew_crtc_in_state(state
, crtc
, old_crtc_state
, new_crtc_state
, i
)
12167 /* ignore allocations for crtc's that have been turned off. */
12168 if (new_crtc_state
->active
)
12169 entries
[i
] = &to_intel_crtc_state(old_crtc_state
)->wm
.skl
.ddb
;
12172 * Whenever the number of active pipes changes, we need to make sure we
12173 * update the pipes in the right order so that their ddb allocations
12174 * never overlap with eachother inbetween CRTC updates. Otherwise we'll
12175 * cause pipe underruns and other bad stuff.
12180 for_each_oldnew_crtc_in_state(state
, crtc
, old_crtc_state
, new_crtc_state
, i
) {
12181 bool vbl_wait
= false;
12182 unsigned int cmask
= drm_crtc_mask(crtc
);
12184 intel_crtc
= to_intel_crtc(crtc
);
12185 cstate
= to_intel_crtc_state(new_crtc_state
);
12186 pipe
= intel_crtc
->pipe
;
12188 if (updated
& cmask
|| !cstate
->base
.active
)
12191 if (skl_ddb_allocation_overlaps(dev_priv
,
12193 &cstate
->wm
.skl
.ddb
,
12198 entries
[i
] = &cstate
->wm
.skl
.ddb
;
12201 * If this is an already active pipe, it's DDB changed,
12202 * and this isn't the last pipe that needs updating
12203 * then we need to wait for a vblank to pass for the
12204 * new ddb allocation to take effect.
12206 if (!skl_ddb_entry_equal(&cstate
->wm
.skl
.ddb
,
12207 &to_intel_crtc_state(old_crtc_state
)->wm
.skl
.ddb
) &&
12208 !new_crtc_state
->active_changed
&&
12209 intel_state
->wm_results
.dirty_pipes
!= updated
)
12212 intel_update_crtc(crtc
, state
, old_crtc_state
,
12216 intel_wait_for_vblank(dev_priv
, pipe
);
12220 } while (progress
);
12223 static void intel_atomic_helper_free_state(struct drm_i915_private
*dev_priv
)
12225 struct intel_atomic_state
*state
, *next
;
12226 struct llist_node
*freed
;
12228 freed
= llist_del_all(&dev_priv
->atomic_helper
.free_list
);
12229 llist_for_each_entry_safe(state
, next
, freed
, freed
)
12230 drm_atomic_state_put(&state
->base
);
12233 static void intel_atomic_helper_free_state_worker(struct work_struct
*work
)
12235 struct drm_i915_private
*dev_priv
=
12236 container_of(work
, typeof(*dev_priv
), atomic_helper
.free_work
);
12238 intel_atomic_helper_free_state(dev_priv
);
12241 static void intel_atomic_commit_fence_wait(struct intel_atomic_state
*intel_state
)
12243 struct wait_queue_entry wait_fence
, wait_reset
;
12244 struct drm_i915_private
*dev_priv
= to_i915(intel_state
->base
.dev
);
12246 init_wait_entry(&wait_fence
, 0);
12247 init_wait_entry(&wait_reset
, 0);
12249 prepare_to_wait(&intel_state
->commit_ready
.wait
,
12250 &wait_fence
, TASK_UNINTERRUPTIBLE
);
12251 prepare_to_wait(&dev_priv
->gpu_error
.wait_queue
,
12252 &wait_reset
, TASK_UNINTERRUPTIBLE
);
12255 if (i915_sw_fence_done(&intel_state
->commit_ready
)
12256 || test_bit(I915_RESET_MODESET
, &dev_priv
->gpu_error
.flags
))
12261 finish_wait(&intel_state
->commit_ready
.wait
, &wait_fence
);
12262 finish_wait(&dev_priv
->gpu_error
.wait_queue
, &wait_reset
);
12265 static void intel_atomic_commit_tail(struct drm_atomic_state
*state
)
12267 struct drm_device
*dev
= state
->dev
;
12268 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
12269 struct drm_i915_private
*dev_priv
= to_i915(dev
);
12270 struct drm_crtc_state
*old_crtc_state
, *new_crtc_state
;
12271 struct drm_crtc
*crtc
;
12272 struct intel_crtc_state
*intel_cstate
;
12273 u64 put_domains
[I915_MAX_PIPES
] = {};
12276 intel_atomic_commit_fence_wait(intel_state
);
12278 drm_atomic_helper_wait_for_dependencies(state
);
12280 if (intel_state
->modeset
)
12281 intel_display_power_get(dev_priv
, POWER_DOMAIN_MODESET
);
12283 for_each_oldnew_crtc_in_state(state
, crtc
, old_crtc_state
, new_crtc_state
, i
) {
12284 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
12286 if (needs_modeset(new_crtc_state
) ||
12287 to_intel_crtc_state(new_crtc_state
)->update_pipe
) {
12289 put_domains
[to_intel_crtc(crtc
)->pipe
] =
12290 modeset_get_crtc_power_domains(crtc
,
12291 to_intel_crtc_state(new_crtc_state
));
12294 if (!needs_modeset(new_crtc_state
))
12297 intel_pre_plane_update(to_intel_crtc_state(old_crtc_state
),
12298 to_intel_crtc_state(new_crtc_state
));
12300 if (old_crtc_state
->active
) {
12301 intel_crtc_disable_planes(crtc
, old_crtc_state
->plane_mask
);
12302 dev_priv
->display
.crtc_disable(to_intel_crtc_state(old_crtc_state
), state
);
12303 intel_crtc
->active
= false;
12304 intel_fbc_disable(intel_crtc
);
12305 intel_disable_shared_dpll(intel_crtc
);
12308 * Underruns don't always raise
12309 * interrupts, so check manually.
12311 intel_check_cpu_fifo_underruns(dev_priv
);
12312 intel_check_pch_fifo_underruns(dev_priv
);
12314 if (!new_crtc_state
->active
) {
12316 * Make sure we don't call initial_watermarks
12317 * for ILK-style watermark updates.
12319 * No clue what this is supposed to achieve.
12321 if (INTEL_GEN(dev_priv
) >= 9)
12322 dev_priv
->display
.initial_watermarks(intel_state
,
12323 to_intel_crtc_state(new_crtc_state
));
12328 /* Only after disabling all output pipelines that will be changed can we
12329 * update the the output configuration. */
12330 intel_modeset_update_crtc_state(state
);
12332 if (intel_state
->modeset
) {
12333 drm_atomic_helper_update_legacy_modeset_state(state
->dev
, state
);
12335 intel_set_cdclk(dev_priv
, &dev_priv
->cdclk
.actual
);
12338 * SKL workaround: bspec recommends we disable the SAGV when we
12339 * have more then one pipe enabled
12341 if (!intel_can_enable_sagv(state
))
12342 intel_disable_sagv(dev_priv
);
12344 intel_modeset_verify_disabled(dev
, state
);
12347 /* Complete the events for pipes that have now been disabled */
12348 for_each_new_crtc_in_state(state
, crtc
, new_crtc_state
, i
) {
12349 bool modeset
= needs_modeset(new_crtc_state
);
12351 /* Complete events for now disable pipes here. */
12352 if (modeset
&& !new_crtc_state
->active
&& new_crtc_state
->event
) {
12353 spin_lock_irq(&dev
->event_lock
);
12354 drm_crtc_send_vblank_event(crtc
, new_crtc_state
->event
);
12355 spin_unlock_irq(&dev
->event_lock
);
12357 new_crtc_state
->event
= NULL
;
12361 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
12362 dev_priv
->display
.update_crtcs(state
);
12364 /* FIXME: We should call drm_atomic_helper_commit_hw_done() here
12365 * already, but still need the state for the delayed optimization. To
12367 * - wrap the optimization/post_plane_update stuff into a per-crtc work.
12368 * - schedule that vblank worker _before_ calling hw_done
12369 * - at the start of commit_tail, cancel it _synchrously
12370 * - switch over to the vblank wait helper in the core after that since
12371 * we don't need out special handling any more.
12373 drm_atomic_helper_wait_for_flip_done(dev
, state
);
12376 * Now that the vblank has passed, we can go ahead and program the
12377 * optimal watermarks on platforms that need two-step watermark
12380 * TODO: Move this (and other cleanup) to an async worker eventually.
12382 for_each_new_crtc_in_state(state
, crtc
, new_crtc_state
, i
) {
12383 intel_cstate
= to_intel_crtc_state(new_crtc_state
);
12385 if (dev_priv
->display
.optimize_watermarks
)
12386 dev_priv
->display
.optimize_watermarks(intel_state
,
12390 for_each_oldnew_crtc_in_state(state
, crtc
, old_crtc_state
, new_crtc_state
, i
) {
12391 intel_post_plane_update(to_intel_crtc_state(old_crtc_state
));
12393 if (put_domains
[i
])
12394 modeset_put_power_domains(dev_priv
, put_domains
[i
]);
12396 intel_modeset_verify_crtc(crtc
, state
, old_crtc_state
, new_crtc_state
);
12399 if (intel_state
->modeset
&& intel_can_enable_sagv(state
))
12400 intel_enable_sagv(dev_priv
);
12402 drm_atomic_helper_commit_hw_done(state
);
12404 if (intel_state
->modeset
) {
12405 /* As one of the primary mmio accessors, KMS has a high
12406 * likelihood of triggering bugs in unclaimed access. After we
12407 * finish modesetting, see if an error has been flagged, and if
12408 * so enable debugging for the next modeset - and hope we catch
12411 intel_uncore_arm_unclaimed_mmio_detection(dev_priv
);
12412 intel_display_power_put(dev_priv
, POWER_DOMAIN_MODESET
);
12415 drm_atomic_helper_cleanup_planes(dev
, state
);
12417 drm_atomic_helper_commit_cleanup_done(state
);
12419 drm_atomic_state_put(state
);
12421 intel_atomic_helper_free_state(dev_priv
);
12424 static void intel_atomic_commit_work(struct work_struct
*work
)
12426 struct drm_atomic_state
*state
=
12427 container_of(work
, struct drm_atomic_state
, commit_work
);
12429 intel_atomic_commit_tail(state
);
12432 static int __i915_sw_fence_call
12433 intel_atomic_commit_ready(struct i915_sw_fence
*fence
,
12434 enum i915_sw_fence_notify notify
)
12436 struct intel_atomic_state
*state
=
12437 container_of(fence
, struct intel_atomic_state
, commit_ready
);
12440 case FENCE_COMPLETE
:
12441 /* we do blocking waits in the worker, nothing to do here */
12445 struct intel_atomic_helper
*helper
=
12446 &to_i915(state
->base
.dev
)->atomic_helper
;
12448 if (llist_add(&state
->freed
, &helper
->free_list
))
12449 schedule_work(&helper
->free_work
);
12454 return NOTIFY_DONE
;
12457 static void intel_atomic_track_fbs(struct drm_atomic_state
*state
)
12459 struct drm_plane_state
*old_plane_state
, *new_plane_state
;
12460 struct drm_plane
*plane
;
12463 for_each_oldnew_plane_in_state(state
, plane
, old_plane_state
, new_plane_state
, i
)
12464 i915_gem_track_fb(intel_fb_obj(old_plane_state
->fb
),
12465 intel_fb_obj(new_plane_state
->fb
),
12466 to_intel_plane(plane
)->frontbuffer_bit
);
12470 * intel_atomic_commit - commit validated state object
12472 * @state: the top-level driver state object
12473 * @nonblock: nonblocking commit
12475 * This function commits a top-level state object that has been validated
12476 * with drm_atomic_helper_check().
12479 * Zero for success or -errno.
12481 static int intel_atomic_commit(struct drm_device
*dev
,
12482 struct drm_atomic_state
*state
,
12485 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
12486 struct drm_i915_private
*dev_priv
= to_i915(dev
);
12489 drm_atomic_state_get(state
);
12490 i915_sw_fence_init(&intel_state
->commit_ready
,
12491 intel_atomic_commit_ready
);
12494 * The intel_legacy_cursor_update() fast path takes care
12495 * of avoiding the vblank waits for simple cursor
12496 * movement and flips. For cursor on/off and size changes,
12497 * we want to perform the vblank waits so that watermark
12498 * updates happen during the correct frames. Gen9+ have
12499 * double buffered watermarks and so shouldn't need this.
12501 * Unset state->legacy_cursor_update before the call to
12502 * drm_atomic_helper_setup_commit() because otherwise
12503 * drm_atomic_helper_wait_for_flip_done() is a noop and
12504 * we get FIFO underruns because we didn't wait
12507 * FIXME doing watermarks and fb cleanup from a vblank worker
12508 * (assuming we had any) would solve these problems.
12510 if (INTEL_GEN(dev_priv
) < 9 && state
->legacy_cursor_update
) {
12511 struct intel_crtc_state
*new_crtc_state
;
12512 struct intel_crtc
*crtc
;
12515 for_each_new_intel_crtc_in_state(intel_state
, crtc
, new_crtc_state
, i
)
12516 if (new_crtc_state
->wm
.need_postvbl_update
||
12517 new_crtc_state
->update_wm_post
)
12518 state
->legacy_cursor_update
= false;
12521 ret
= intel_atomic_prepare_commit(dev
, state
);
12523 DRM_DEBUG_ATOMIC("Preparing state failed with %i\n", ret
);
12524 i915_sw_fence_commit(&intel_state
->commit_ready
);
12528 ret
= drm_atomic_helper_setup_commit(state
, nonblock
);
12530 ret
= drm_atomic_helper_swap_state(state
, true);
12533 i915_sw_fence_commit(&intel_state
->commit_ready
);
12535 drm_atomic_helper_cleanup_planes(dev
, state
);
12538 dev_priv
->wm
.distrust_bios_wm
= false;
12539 intel_shared_dpll_swap_state(state
);
12540 intel_atomic_track_fbs(state
);
12542 if (intel_state
->modeset
) {
12543 memcpy(dev_priv
->min_cdclk
, intel_state
->min_cdclk
,
12544 sizeof(intel_state
->min_cdclk
));
12545 dev_priv
->active_crtcs
= intel_state
->active_crtcs
;
12546 dev_priv
->cdclk
.logical
= intel_state
->cdclk
.logical
;
12547 dev_priv
->cdclk
.actual
= intel_state
->cdclk
.actual
;
12550 drm_atomic_state_get(state
);
12551 INIT_WORK(&state
->commit_work
, intel_atomic_commit_work
);
12553 i915_sw_fence_commit(&intel_state
->commit_ready
);
12554 if (nonblock
&& intel_state
->modeset
) {
12555 queue_work(dev_priv
->modeset_wq
, &state
->commit_work
);
12556 } else if (nonblock
) {
12557 queue_work(system_unbound_wq
, &state
->commit_work
);
12559 if (intel_state
->modeset
)
12560 flush_workqueue(dev_priv
->modeset_wq
);
12561 intel_atomic_commit_tail(state
);
12567 static const struct drm_crtc_funcs intel_crtc_funcs
= {
12568 .gamma_set
= drm_atomic_helper_legacy_gamma_set
,
12569 .set_config
= drm_atomic_helper_set_config
,
12570 .destroy
= intel_crtc_destroy
,
12571 .page_flip
= drm_atomic_helper_page_flip
,
12572 .atomic_duplicate_state
= intel_crtc_duplicate_state
,
12573 .atomic_destroy_state
= intel_crtc_destroy_state
,
12574 .set_crc_source
= intel_crtc_set_crc_source
,
12577 struct wait_rps_boost
{
12578 struct wait_queue_entry wait
;
12580 struct drm_crtc
*crtc
;
12581 struct drm_i915_gem_request
*request
;
12584 static int do_rps_boost(struct wait_queue_entry
*_wait
,
12585 unsigned mode
, int sync
, void *key
)
12587 struct wait_rps_boost
*wait
= container_of(_wait
, typeof(*wait
), wait
);
12588 struct drm_i915_gem_request
*rq
= wait
->request
;
12590 gen6_rps_boost(rq
, NULL
);
12591 i915_gem_request_put(rq
);
12593 drm_crtc_vblank_put(wait
->crtc
);
12595 list_del(&wait
->wait
.entry
);
12600 static void add_rps_boost_after_vblank(struct drm_crtc
*crtc
,
12601 struct dma_fence
*fence
)
12603 struct wait_rps_boost
*wait
;
12605 if (!dma_fence_is_i915(fence
))
12608 if (INTEL_GEN(to_i915(crtc
->dev
)) < 6)
12611 if (drm_crtc_vblank_get(crtc
))
12614 wait
= kmalloc(sizeof(*wait
), GFP_KERNEL
);
12616 drm_crtc_vblank_put(crtc
);
12620 wait
->request
= to_request(dma_fence_get(fence
));
12623 wait
->wait
.func
= do_rps_boost
;
12624 wait
->wait
.flags
= 0;
12626 add_wait_queue(drm_crtc_vblank_waitqueue(crtc
), &wait
->wait
);
12630 * intel_prepare_plane_fb - Prepare fb for usage on plane
12631 * @plane: drm plane to prepare for
12632 * @fb: framebuffer to prepare for presentation
12634 * Prepares a framebuffer for usage on a display plane. Generally this
12635 * involves pinning the underlying object and updating the frontbuffer tracking
12636 * bits. Some older platforms need special physical address handling for
12639 * Must be called with struct_mutex held.
12641 * Returns 0 on success, negative error code on failure.
12644 intel_prepare_plane_fb(struct drm_plane
*plane
,
12645 struct drm_plane_state
*new_state
)
12647 struct intel_atomic_state
*intel_state
=
12648 to_intel_atomic_state(new_state
->state
);
12649 struct drm_i915_private
*dev_priv
= to_i915(plane
->dev
);
12650 struct drm_framebuffer
*fb
= new_state
->fb
;
12651 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
12652 struct drm_i915_gem_object
*old_obj
= intel_fb_obj(plane
->state
->fb
);
12656 struct drm_crtc_state
*crtc_state
=
12657 drm_atomic_get_existing_crtc_state(new_state
->state
,
12658 plane
->state
->crtc
);
12660 /* Big Hammer, we also need to ensure that any pending
12661 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
12662 * current scanout is retired before unpinning the old
12663 * framebuffer. Note that we rely on userspace rendering
12664 * into the buffer attached to the pipe they are waiting
12665 * on. If not, userspace generates a GPU hang with IPEHR
12666 * point to the MI_WAIT_FOR_EVENT.
12668 * This should only fail upon a hung GPU, in which case we
12669 * can safely continue.
12671 if (needs_modeset(crtc_state
)) {
12672 ret
= i915_sw_fence_await_reservation(&intel_state
->commit_ready
,
12673 old_obj
->resv
, NULL
,
12681 if (new_state
->fence
) { /* explicit fencing */
12682 ret
= i915_sw_fence_await_dma_fence(&intel_state
->commit_ready
,
12684 I915_FENCE_TIMEOUT
,
12693 ret
= i915_gem_object_pin_pages(obj
);
12697 ret
= mutex_lock_interruptible(&dev_priv
->drm
.struct_mutex
);
12699 i915_gem_object_unpin_pages(obj
);
12703 if (plane
->type
== DRM_PLANE_TYPE_CURSOR
&&
12704 INTEL_INFO(dev_priv
)->cursor_needs_physical
) {
12705 const int align
= intel_cursor_alignment(dev_priv
);
12707 ret
= i915_gem_object_attach_phys(obj
, align
);
12709 struct i915_vma
*vma
;
12711 vma
= intel_pin_and_fence_fb_obj(fb
, new_state
->rotation
);
12713 to_intel_plane_state(new_state
)->vma
= vma
;
12715 ret
= PTR_ERR(vma
);
12718 i915_gem_object_wait_priority(obj
, 0, I915_PRIORITY_DISPLAY
);
12720 mutex_unlock(&dev_priv
->drm
.struct_mutex
);
12721 i915_gem_object_unpin_pages(obj
);
12725 if (!new_state
->fence
) { /* implicit fencing */
12726 struct dma_fence
*fence
;
12728 ret
= i915_sw_fence_await_reservation(&intel_state
->commit_ready
,
12730 false, I915_FENCE_TIMEOUT
,
12735 fence
= reservation_object_get_excl_rcu(obj
->resv
);
12737 add_rps_boost_after_vblank(new_state
->crtc
, fence
);
12738 dma_fence_put(fence
);
12741 add_rps_boost_after_vblank(new_state
->crtc
, new_state
->fence
);
12748 * intel_cleanup_plane_fb - Cleans up an fb after plane use
12749 * @plane: drm plane to clean up for
12750 * @fb: old framebuffer that was on plane
12752 * Cleans up a framebuffer that has just been removed from a plane.
12754 * Must be called with struct_mutex held.
12757 intel_cleanup_plane_fb(struct drm_plane
*plane
,
12758 struct drm_plane_state
*old_state
)
12760 struct i915_vma
*vma
;
12762 /* Should only be called after a successful intel_prepare_plane_fb()! */
12763 vma
= fetch_and_zero(&to_intel_plane_state(old_state
)->vma
);
12765 mutex_lock(&plane
->dev
->struct_mutex
);
12766 intel_unpin_fb_vma(vma
);
12767 mutex_unlock(&plane
->dev
->struct_mutex
);
12772 skl_max_scale(struct intel_crtc
*intel_crtc
, struct intel_crtc_state
*crtc_state
)
12774 struct drm_i915_private
*dev_priv
;
12776 int crtc_clock
, max_dotclk
;
12778 if (!intel_crtc
|| !crtc_state
->base
.enable
)
12779 return DRM_PLANE_HELPER_NO_SCALING
;
12781 dev_priv
= to_i915(intel_crtc
->base
.dev
);
12783 crtc_clock
= crtc_state
->base
.adjusted_mode
.crtc_clock
;
12784 max_dotclk
= to_intel_atomic_state(crtc_state
->base
.state
)->cdclk
.logical
.cdclk
;
12786 if (IS_GEMINILAKE(dev_priv
))
12789 if (WARN_ON_ONCE(!crtc_clock
|| max_dotclk
< crtc_clock
))
12790 return DRM_PLANE_HELPER_NO_SCALING
;
12793 * skl max scale is lower of:
12794 * close to 3 but not 3, -1 is for that purpose
12798 max_scale
= min((1 << 16) * 3 - 1,
12799 (1 << 8) * ((max_dotclk
<< 8) / crtc_clock
));
12805 intel_check_primary_plane(struct intel_plane
*plane
,
12806 struct intel_crtc_state
*crtc_state
,
12807 struct intel_plane_state
*state
)
12809 struct drm_i915_private
*dev_priv
= to_i915(plane
->base
.dev
);
12810 struct drm_crtc
*crtc
= state
->base
.crtc
;
12811 int min_scale
= DRM_PLANE_HELPER_NO_SCALING
;
12812 int max_scale
= DRM_PLANE_HELPER_NO_SCALING
;
12813 bool can_position
= false;
12816 if (INTEL_GEN(dev_priv
) >= 9) {
12817 /* use scaler when colorkey is not required */
12818 if (state
->ckey
.flags
== I915_SET_COLORKEY_NONE
) {
12820 max_scale
= skl_max_scale(to_intel_crtc(crtc
), crtc_state
);
12822 can_position
= true;
12825 ret
= drm_plane_helper_check_state(&state
->base
,
12827 min_scale
, max_scale
,
12828 can_position
, true);
12832 if (!state
->base
.fb
)
12835 if (INTEL_GEN(dev_priv
) >= 9) {
12836 ret
= skl_check_plane_surface(state
);
12840 state
->ctl
= skl_plane_ctl(crtc_state
, state
);
12842 ret
= i9xx_check_plane_surface(state
);
12846 state
->ctl
= i9xx_plane_ctl(crtc_state
, state
);
12852 static void intel_begin_crtc_commit(struct drm_crtc
*crtc
,
12853 struct drm_crtc_state
*old_crtc_state
)
12855 struct drm_device
*dev
= crtc
->dev
;
12856 struct drm_i915_private
*dev_priv
= to_i915(dev
);
12857 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
12858 struct intel_crtc_state
*old_intel_cstate
=
12859 to_intel_crtc_state(old_crtc_state
);
12860 struct intel_atomic_state
*old_intel_state
=
12861 to_intel_atomic_state(old_crtc_state
->state
);
12862 struct intel_crtc_state
*intel_cstate
=
12863 intel_atomic_get_new_crtc_state(old_intel_state
, intel_crtc
);
12864 bool modeset
= needs_modeset(&intel_cstate
->base
);
12867 (intel_cstate
->base
.color_mgmt_changed
||
12868 intel_cstate
->update_pipe
)) {
12869 intel_color_set_csc(&intel_cstate
->base
);
12870 intel_color_load_luts(&intel_cstate
->base
);
12873 /* Perform vblank evasion around commit operation */
12874 intel_pipe_update_start(intel_cstate
);
12879 if (intel_cstate
->update_pipe
)
12880 intel_update_pipe_config(old_intel_cstate
, intel_cstate
);
12881 else if (INTEL_GEN(dev_priv
) >= 9)
12882 skl_detach_scalers(intel_crtc
);
12885 if (dev_priv
->display
.atomic_update_watermarks
)
12886 dev_priv
->display
.atomic_update_watermarks(old_intel_state
,
12890 static void intel_finish_crtc_commit(struct drm_crtc
*crtc
,
12891 struct drm_crtc_state
*old_crtc_state
)
12893 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
12894 struct intel_atomic_state
*old_intel_state
=
12895 to_intel_atomic_state(old_crtc_state
->state
);
12896 struct intel_crtc_state
*new_crtc_state
=
12897 intel_atomic_get_new_crtc_state(old_intel_state
, intel_crtc
);
12899 intel_pipe_update_end(new_crtc_state
);
12903 * intel_plane_destroy - destroy a plane
12904 * @plane: plane to destroy
12906 * Common destruction function for all types of planes (primary, cursor,
12909 void intel_plane_destroy(struct drm_plane
*plane
)
12911 drm_plane_cleanup(plane
);
12912 kfree(to_intel_plane(plane
));
12915 static bool i8xx_mod_supported(uint32_t format
, uint64_t modifier
)
12918 case DRM_FORMAT_C8
:
12919 case DRM_FORMAT_RGB565
:
12920 case DRM_FORMAT_XRGB1555
:
12921 case DRM_FORMAT_XRGB8888
:
12922 return modifier
== DRM_FORMAT_MOD_LINEAR
||
12923 modifier
== I915_FORMAT_MOD_X_TILED
;
12929 static bool i965_mod_supported(uint32_t format
, uint64_t modifier
)
12932 case DRM_FORMAT_C8
:
12933 case DRM_FORMAT_RGB565
:
12934 case DRM_FORMAT_XRGB8888
:
12935 case DRM_FORMAT_XBGR8888
:
12936 case DRM_FORMAT_XRGB2101010
:
12937 case DRM_FORMAT_XBGR2101010
:
12938 return modifier
== DRM_FORMAT_MOD_LINEAR
||
12939 modifier
== I915_FORMAT_MOD_X_TILED
;
12945 static bool skl_mod_supported(uint32_t format
, uint64_t modifier
)
12948 case DRM_FORMAT_XRGB8888
:
12949 case DRM_FORMAT_XBGR8888
:
12950 case DRM_FORMAT_ARGB8888
:
12951 case DRM_FORMAT_ABGR8888
:
12952 if (modifier
== I915_FORMAT_MOD_Yf_TILED_CCS
||
12953 modifier
== I915_FORMAT_MOD_Y_TILED_CCS
)
12956 case DRM_FORMAT_RGB565
:
12957 case DRM_FORMAT_XRGB2101010
:
12958 case DRM_FORMAT_XBGR2101010
:
12959 case DRM_FORMAT_YUYV
:
12960 case DRM_FORMAT_YVYU
:
12961 case DRM_FORMAT_UYVY
:
12962 case DRM_FORMAT_VYUY
:
12963 if (modifier
== I915_FORMAT_MOD_Yf_TILED
)
12966 case DRM_FORMAT_C8
:
12967 if (modifier
== DRM_FORMAT_MOD_LINEAR
||
12968 modifier
== I915_FORMAT_MOD_X_TILED
||
12969 modifier
== I915_FORMAT_MOD_Y_TILED
)
12977 static bool intel_primary_plane_format_mod_supported(struct drm_plane
*plane
,
12981 struct drm_i915_private
*dev_priv
= to_i915(plane
->dev
);
12983 if (WARN_ON(modifier
== DRM_FORMAT_MOD_INVALID
))
12986 if ((modifier
>> 56) != DRM_FORMAT_MOD_VENDOR_INTEL
&&
12987 modifier
!= DRM_FORMAT_MOD_LINEAR
)
12990 if (INTEL_GEN(dev_priv
) >= 9)
12991 return skl_mod_supported(format
, modifier
);
12992 else if (INTEL_GEN(dev_priv
) >= 4)
12993 return i965_mod_supported(format
, modifier
);
12995 return i8xx_mod_supported(format
, modifier
);
13000 static bool intel_cursor_plane_format_mod_supported(struct drm_plane
*plane
,
13004 if (WARN_ON(modifier
== DRM_FORMAT_MOD_INVALID
))
13007 return modifier
== DRM_FORMAT_MOD_LINEAR
&& format
== DRM_FORMAT_ARGB8888
;
13010 static struct drm_plane_funcs intel_plane_funcs
= {
13011 .update_plane
= drm_atomic_helper_update_plane
,
13012 .disable_plane
= drm_atomic_helper_disable_plane
,
13013 .destroy
= intel_plane_destroy
,
13014 .atomic_get_property
= intel_plane_atomic_get_property
,
13015 .atomic_set_property
= intel_plane_atomic_set_property
,
13016 .atomic_duplicate_state
= intel_plane_duplicate_state
,
13017 .atomic_destroy_state
= intel_plane_destroy_state
,
13018 .format_mod_supported
= intel_primary_plane_format_mod_supported
,
13022 intel_legacy_cursor_update(struct drm_plane
*plane
,
13023 struct drm_crtc
*crtc
,
13024 struct drm_framebuffer
*fb
,
13025 int crtc_x
, int crtc_y
,
13026 unsigned int crtc_w
, unsigned int crtc_h
,
13027 uint32_t src_x
, uint32_t src_y
,
13028 uint32_t src_w
, uint32_t src_h
,
13029 struct drm_modeset_acquire_ctx
*ctx
)
13031 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
13033 struct drm_plane_state
*old_plane_state
, *new_plane_state
;
13034 struct intel_plane
*intel_plane
= to_intel_plane(plane
);
13035 struct drm_framebuffer
*old_fb
;
13036 struct drm_crtc_state
*crtc_state
= crtc
->state
;
13037 struct i915_vma
*old_vma
, *vma
;
13040 * When crtc is inactive or there is a modeset pending,
13041 * wait for it to complete in the slowpath
13043 if (!crtc_state
->active
|| needs_modeset(crtc_state
) ||
13044 to_intel_crtc_state(crtc_state
)->update_pipe
)
13047 old_plane_state
= plane
->state
;
13049 * Don't do an async update if there is an outstanding commit modifying
13050 * the plane. This prevents our async update's changes from getting
13051 * overridden by a previous synchronous update's state.
13053 if (old_plane_state
->commit
&&
13054 !try_wait_for_completion(&old_plane_state
->commit
->hw_done
))
13058 * If any parameters change that may affect watermarks,
13059 * take the slowpath. Only changing fb or position should be
13062 if (old_plane_state
->crtc
!= crtc
||
13063 old_plane_state
->src_w
!= src_w
||
13064 old_plane_state
->src_h
!= src_h
||
13065 old_plane_state
->crtc_w
!= crtc_w
||
13066 old_plane_state
->crtc_h
!= crtc_h
||
13067 !old_plane_state
->fb
!= !fb
)
13070 new_plane_state
= intel_plane_duplicate_state(plane
);
13071 if (!new_plane_state
)
13074 drm_atomic_set_fb_for_plane(new_plane_state
, fb
);
13076 new_plane_state
->src_x
= src_x
;
13077 new_plane_state
->src_y
= src_y
;
13078 new_plane_state
->src_w
= src_w
;
13079 new_plane_state
->src_h
= src_h
;
13080 new_plane_state
->crtc_x
= crtc_x
;
13081 new_plane_state
->crtc_y
= crtc_y
;
13082 new_plane_state
->crtc_w
= crtc_w
;
13083 new_plane_state
->crtc_h
= crtc_h
;
13085 ret
= intel_plane_atomic_check_with_state(to_intel_crtc_state(crtc
->state
),
13086 to_intel_crtc_state(crtc
->state
), /* FIXME need a new crtc state? */
13087 to_intel_plane_state(plane
->state
),
13088 to_intel_plane_state(new_plane_state
));
13092 ret
= mutex_lock_interruptible(&dev_priv
->drm
.struct_mutex
);
13096 if (INTEL_INFO(dev_priv
)->cursor_needs_physical
) {
13097 int align
= intel_cursor_alignment(dev_priv
);
13099 ret
= i915_gem_object_attach_phys(intel_fb_obj(fb
), align
);
13101 DRM_DEBUG_KMS("failed to attach phys object\n");
13105 vma
= intel_pin_and_fence_fb_obj(fb
, new_plane_state
->rotation
);
13107 DRM_DEBUG_KMS("failed to pin object\n");
13109 ret
= PTR_ERR(vma
);
13113 to_intel_plane_state(new_plane_state
)->vma
= vma
;
13116 old_fb
= old_plane_state
->fb
;
13118 i915_gem_track_fb(intel_fb_obj(old_fb
), intel_fb_obj(fb
),
13119 intel_plane
->frontbuffer_bit
);
13121 /* Swap plane state */
13122 plane
->state
= new_plane_state
;
13124 if (plane
->state
->visible
) {
13125 trace_intel_update_plane(plane
, to_intel_crtc(crtc
));
13126 intel_plane
->update_plane(intel_plane
,
13127 to_intel_crtc_state(crtc
->state
),
13128 to_intel_plane_state(plane
->state
));
13130 trace_intel_disable_plane(plane
, to_intel_crtc(crtc
));
13131 intel_plane
->disable_plane(intel_plane
, to_intel_crtc(crtc
));
13134 old_vma
= fetch_and_zero(&to_intel_plane_state(old_plane_state
)->vma
);
13136 intel_unpin_fb_vma(old_vma
);
13139 mutex_unlock(&dev_priv
->drm
.struct_mutex
);
13142 intel_plane_destroy_state(plane
, new_plane_state
);
13144 intel_plane_destroy_state(plane
, old_plane_state
);
13148 return drm_atomic_helper_update_plane(plane
, crtc
, fb
,
13149 crtc_x
, crtc_y
, crtc_w
, crtc_h
,
13150 src_x
, src_y
, src_w
, src_h
, ctx
);
13153 static const struct drm_plane_funcs intel_cursor_plane_funcs
= {
13154 .update_plane
= intel_legacy_cursor_update
,
13155 .disable_plane
= drm_atomic_helper_disable_plane
,
13156 .destroy
= intel_plane_destroy
,
13157 .atomic_get_property
= intel_plane_atomic_get_property
,
13158 .atomic_set_property
= intel_plane_atomic_set_property
,
13159 .atomic_duplicate_state
= intel_plane_duplicate_state
,
13160 .atomic_destroy_state
= intel_plane_destroy_state
,
13161 .format_mod_supported
= intel_cursor_plane_format_mod_supported
,
13164 static struct intel_plane
*
13165 intel_primary_plane_create(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
13167 struct intel_plane
*primary
= NULL
;
13168 struct intel_plane_state
*state
= NULL
;
13169 const uint32_t *intel_primary_formats
;
13170 unsigned int supported_rotations
;
13171 unsigned int num_formats
;
13172 const uint64_t *modifiers
;
13175 primary
= kzalloc(sizeof(*primary
), GFP_KERNEL
);
13181 state
= intel_create_plane_state(&primary
->base
);
13187 primary
->base
.state
= &state
->base
;
13189 primary
->can_scale
= false;
13190 primary
->max_downscale
= 1;
13191 if (INTEL_GEN(dev_priv
) >= 9) {
13192 primary
->can_scale
= true;
13193 state
->scaler_id
= -1;
13195 primary
->pipe
= pipe
;
13197 * On gen2/3 only plane A can do FBC, but the panel fitter and LVDS
13198 * port is hooked to pipe B. Hence we want plane A feeding pipe B.
13200 if (HAS_FBC(dev_priv
) && INTEL_GEN(dev_priv
) < 4)
13201 primary
->plane
= (enum plane
) !pipe
;
13203 primary
->plane
= (enum plane
) pipe
;
13204 primary
->id
= PLANE_PRIMARY
;
13205 primary
->frontbuffer_bit
= INTEL_FRONTBUFFER_PRIMARY(pipe
);
13206 primary
->check_plane
= intel_check_primary_plane
;
13208 if (INTEL_GEN(dev_priv
) >= 10) {
13209 intel_primary_formats
= skl_primary_formats
;
13210 num_formats
= ARRAY_SIZE(skl_primary_formats
);
13211 modifiers
= skl_format_modifiers_ccs
;
13213 primary
->update_plane
= skl_update_plane
;
13214 primary
->disable_plane
= skl_disable_plane
;
13215 primary
->get_hw_state
= skl_plane_get_hw_state
;
13216 } else if (INTEL_GEN(dev_priv
) >= 9) {
13217 intel_primary_formats
= skl_primary_formats
;
13218 num_formats
= ARRAY_SIZE(skl_primary_formats
);
13220 modifiers
= skl_format_modifiers_ccs
;
13222 modifiers
= skl_format_modifiers_noccs
;
13224 primary
->update_plane
= skl_update_plane
;
13225 primary
->disable_plane
= skl_disable_plane
;
13226 primary
->get_hw_state
= skl_plane_get_hw_state
;
13227 } else if (INTEL_GEN(dev_priv
) >= 4) {
13228 intel_primary_formats
= i965_primary_formats
;
13229 num_formats
= ARRAY_SIZE(i965_primary_formats
);
13230 modifiers
= i9xx_format_modifiers
;
13232 primary
->update_plane
= i9xx_update_primary_plane
;
13233 primary
->disable_plane
= i9xx_disable_primary_plane
;
13234 primary
->get_hw_state
= i9xx_plane_get_hw_state
;
13236 intel_primary_formats
= i8xx_primary_formats
;
13237 num_formats
= ARRAY_SIZE(i8xx_primary_formats
);
13238 modifiers
= i9xx_format_modifiers
;
13240 primary
->update_plane
= i9xx_update_primary_plane
;
13241 primary
->disable_plane
= i9xx_disable_primary_plane
;
13242 primary
->get_hw_state
= i9xx_plane_get_hw_state
;
13245 if (INTEL_GEN(dev_priv
) >= 9)
13246 ret
= drm_universal_plane_init(&dev_priv
->drm
, &primary
->base
,
13247 0, &intel_plane_funcs
,
13248 intel_primary_formats
, num_formats
,
13250 DRM_PLANE_TYPE_PRIMARY
,
13251 "plane 1%c", pipe_name(pipe
));
13252 else if (INTEL_GEN(dev_priv
) >= 5 || IS_G4X(dev_priv
))
13253 ret
= drm_universal_plane_init(&dev_priv
->drm
, &primary
->base
,
13254 0, &intel_plane_funcs
,
13255 intel_primary_formats
, num_formats
,
13257 DRM_PLANE_TYPE_PRIMARY
,
13258 "primary %c", pipe_name(pipe
));
13260 ret
= drm_universal_plane_init(&dev_priv
->drm
, &primary
->base
,
13261 0, &intel_plane_funcs
,
13262 intel_primary_formats
, num_formats
,
13264 DRM_PLANE_TYPE_PRIMARY
,
13265 "plane %c", plane_name(primary
->plane
));
13269 if (INTEL_GEN(dev_priv
) >= 9) {
13270 supported_rotations
=
13271 DRM_MODE_ROTATE_0
| DRM_MODE_ROTATE_90
|
13272 DRM_MODE_ROTATE_180
| DRM_MODE_ROTATE_270
;
13273 } else if (IS_CHERRYVIEW(dev_priv
) && pipe
== PIPE_B
) {
13274 supported_rotations
=
13275 DRM_MODE_ROTATE_0
| DRM_MODE_ROTATE_180
|
13276 DRM_MODE_REFLECT_X
;
13277 } else if (INTEL_GEN(dev_priv
) >= 4) {
13278 supported_rotations
=
13279 DRM_MODE_ROTATE_0
| DRM_MODE_ROTATE_180
;
13281 supported_rotations
= DRM_MODE_ROTATE_0
;
13284 if (INTEL_GEN(dev_priv
) >= 4)
13285 drm_plane_create_rotation_property(&primary
->base
,
13287 supported_rotations
);
13289 drm_plane_helper_add(&primary
->base
, &intel_plane_helper_funcs
);
13297 return ERR_PTR(ret
);
13300 static struct intel_plane
*
13301 intel_cursor_plane_create(struct drm_i915_private
*dev_priv
,
13304 struct intel_plane
*cursor
= NULL
;
13305 struct intel_plane_state
*state
= NULL
;
13308 cursor
= kzalloc(sizeof(*cursor
), GFP_KERNEL
);
13314 state
= intel_create_plane_state(&cursor
->base
);
13320 cursor
->base
.state
= &state
->base
;
13322 cursor
->can_scale
= false;
13323 cursor
->max_downscale
= 1;
13324 cursor
->pipe
= pipe
;
13325 cursor
->plane
= pipe
;
13326 cursor
->id
= PLANE_CURSOR
;
13327 cursor
->frontbuffer_bit
= INTEL_FRONTBUFFER_CURSOR(pipe
);
13329 if (IS_I845G(dev_priv
) || IS_I865G(dev_priv
)) {
13330 cursor
->update_plane
= i845_update_cursor
;
13331 cursor
->disable_plane
= i845_disable_cursor
;
13332 cursor
->get_hw_state
= i845_cursor_get_hw_state
;
13333 cursor
->check_plane
= i845_check_cursor
;
13335 cursor
->update_plane
= i9xx_update_cursor
;
13336 cursor
->disable_plane
= i9xx_disable_cursor
;
13337 cursor
->get_hw_state
= i9xx_cursor_get_hw_state
;
13338 cursor
->check_plane
= i9xx_check_cursor
;
13341 cursor
->cursor
.base
= ~0;
13342 cursor
->cursor
.cntl
= ~0;
13344 if (IS_I845G(dev_priv
) || IS_I865G(dev_priv
) || HAS_CUR_FBC(dev_priv
))
13345 cursor
->cursor
.size
= ~0;
13347 ret
= drm_universal_plane_init(&dev_priv
->drm
, &cursor
->base
,
13348 0, &intel_cursor_plane_funcs
,
13349 intel_cursor_formats
,
13350 ARRAY_SIZE(intel_cursor_formats
),
13351 cursor_format_modifiers
,
13352 DRM_PLANE_TYPE_CURSOR
,
13353 "cursor %c", pipe_name(pipe
));
13357 if (INTEL_GEN(dev_priv
) >= 4)
13358 drm_plane_create_rotation_property(&cursor
->base
,
13360 DRM_MODE_ROTATE_0
|
13361 DRM_MODE_ROTATE_180
);
13363 if (INTEL_GEN(dev_priv
) >= 9)
13364 state
->scaler_id
= -1;
13366 drm_plane_helper_add(&cursor
->base
, &intel_plane_helper_funcs
);
13374 return ERR_PTR(ret
);
13377 static void intel_crtc_init_scalers(struct intel_crtc
*crtc
,
13378 struct intel_crtc_state
*crtc_state
)
13380 struct intel_crtc_scaler_state
*scaler_state
=
13381 &crtc_state
->scaler_state
;
13382 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
13385 crtc
->num_scalers
= dev_priv
->info
.num_scalers
[crtc
->pipe
];
13386 if (!crtc
->num_scalers
)
13389 for (i
= 0; i
< crtc
->num_scalers
; i
++) {
13390 struct intel_scaler
*scaler
= &scaler_state
->scalers
[i
];
13392 scaler
->in_use
= 0;
13393 scaler
->mode
= PS_SCALER_MODE_DYN
;
13396 scaler_state
->scaler_id
= -1;
13399 static int intel_crtc_init(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
13401 struct intel_crtc
*intel_crtc
;
13402 struct intel_crtc_state
*crtc_state
= NULL
;
13403 struct intel_plane
*primary
= NULL
;
13404 struct intel_plane
*cursor
= NULL
;
13407 intel_crtc
= kzalloc(sizeof(*intel_crtc
), GFP_KERNEL
);
13411 crtc_state
= kzalloc(sizeof(*crtc_state
), GFP_KERNEL
);
13416 intel_crtc
->config
= crtc_state
;
13417 intel_crtc
->base
.state
= &crtc_state
->base
;
13418 crtc_state
->base
.crtc
= &intel_crtc
->base
;
13420 primary
= intel_primary_plane_create(dev_priv
, pipe
);
13421 if (IS_ERR(primary
)) {
13422 ret
= PTR_ERR(primary
);
13425 intel_crtc
->plane_ids_mask
|= BIT(primary
->id
);
13427 for_each_sprite(dev_priv
, pipe
, sprite
) {
13428 struct intel_plane
*plane
;
13430 plane
= intel_sprite_plane_create(dev_priv
, pipe
, sprite
);
13431 if (IS_ERR(plane
)) {
13432 ret
= PTR_ERR(plane
);
13435 intel_crtc
->plane_ids_mask
|= BIT(plane
->id
);
13438 cursor
= intel_cursor_plane_create(dev_priv
, pipe
);
13439 if (IS_ERR(cursor
)) {
13440 ret
= PTR_ERR(cursor
);
13443 intel_crtc
->plane_ids_mask
|= BIT(cursor
->id
);
13445 ret
= drm_crtc_init_with_planes(&dev_priv
->drm
, &intel_crtc
->base
,
13446 &primary
->base
, &cursor
->base
,
13448 "pipe %c", pipe_name(pipe
));
13452 intel_crtc
->pipe
= pipe
;
13453 intel_crtc
->plane
= primary
->plane
;
13455 /* initialize shared scalers */
13456 intel_crtc_init_scalers(intel_crtc
, crtc_state
);
13458 BUG_ON(pipe
>= ARRAY_SIZE(dev_priv
->plane_to_crtc_mapping
) ||
13459 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] != NULL
);
13460 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] = intel_crtc
;
13461 dev_priv
->pipe_to_crtc_mapping
[intel_crtc
->pipe
] = intel_crtc
;
13463 drm_crtc_helper_add(&intel_crtc
->base
, &intel_helper_funcs
);
13465 intel_color_init(&intel_crtc
->base
);
13467 WARN_ON(drm_crtc_index(&intel_crtc
->base
) != intel_crtc
->pipe
);
13473 * drm_mode_config_cleanup() will free up any
13474 * crtcs/planes already initialized.
13482 enum pipe
intel_get_pipe_from_connector(struct intel_connector
*connector
)
13484 struct drm_device
*dev
= connector
->base
.dev
;
13486 WARN_ON(!drm_modeset_is_locked(&dev
->mode_config
.connection_mutex
));
13488 if (!connector
->base
.state
->crtc
)
13489 return INVALID_PIPE
;
13491 return to_intel_crtc(connector
->base
.state
->crtc
)->pipe
;
13494 int intel_get_pipe_from_crtc_id(struct drm_device
*dev
, void *data
,
13495 struct drm_file
*file
)
13497 struct drm_i915_get_pipe_from_crtc_id
*pipe_from_crtc_id
= data
;
13498 struct drm_crtc
*drmmode_crtc
;
13499 struct intel_crtc
*crtc
;
13501 drmmode_crtc
= drm_crtc_find(dev
, file
, pipe_from_crtc_id
->crtc_id
);
13505 crtc
= to_intel_crtc(drmmode_crtc
);
13506 pipe_from_crtc_id
->pipe
= crtc
->pipe
;
13511 static int intel_encoder_clones(struct intel_encoder
*encoder
)
13513 struct drm_device
*dev
= encoder
->base
.dev
;
13514 struct intel_encoder
*source_encoder
;
13515 int index_mask
= 0;
13518 for_each_intel_encoder(dev
, source_encoder
) {
13519 if (encoders_cloneable(encoder
, source_encoder
))
13520 index_mask
|= (1 << entry
);
13528 static bool has_edp_a(struct drm_i915_private
*dev_priv
)
13530 if (!IS_MOBILE(dev_priv
))
13533 if ((I915_READ(DP_A
) & DP_DETECTED
) == 0)
13536 if (IS_GEN5(dev_priv
) && (I915_READ(FUSE_STRAP
) & ILK_eDP_A_DISABLE
))
13542 static bool intel_crt_present(struct drm_i915_private
*dev_priv
)
13544 if (INTEL_GEN(dev_priv
) >= 9)
13547 if (IS_HSW_ULT(dev_priv
) || IS_BDW_ULT(dev_priv
))
13550 if (IS_CHERRYVIEW(dev_priv
))
13553 if (HAS_PCH_LPT_H(dev_priv
) &&
13554 I915_READ(SFUSE_STRAP
) & SFUSE_STRAP_CRT_DISABLED
)
13557 /* DDI E can't be used if DDI A requires 4 lanes */
13558 if (HAS_DDI(dev_priv
) && I915_READ(DDI_BUF_CTL(PORT_A
)) & DDI_A_4_LANES
)
13561 if (!dev_priv
->vbt
.int_crt_support
)
13567 void intel_pps_unlock_regs_wa(struct drm_i915_private
*dev_priv
)
13572 if (HAS_DDI(dev_priv
))
13575 * This w/a is needed at least on CPT/PPT, but to be sure apply it
13576 * everywhere where registers can be write protected.
13578 if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
13583 for (pps_idx
= 0; pps_idx
< pps_num
; pps_idx
++) {
13584 u32 val
= I915_READ(PP_CONTROL(pps_idx
));
13586 val
= (val
& ~PANEL_UNLOCK_MASK
) | PANEL_UNLOCK_REGS
;
13587 I915_WRITE(PP_CONTROL(pps_idx
), val
);
13591 static void intel_pps_init(struct drm_i915_private
*dev_priv
)
13593 if (HAS_PCH_SPLIT(dev_priv
) || IS_GEN9_LP(dev_priv
))
13594 dev_priv
->pps_mmio_base
= PCH_PPS_BASE
;
13595 else if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
13596 dev_priv
->pps_mmio_base
= VLV_PPS_BASE
;
13598 dev_priv
->pps_mmio_base
= PPS_BASE
;
13600 intel_pps_unlock_regs_wa(dev_priv
);
13603 static void intel_setup_outputs(struct drm_i915_private
*dev_priv
)
13605 struct intel_encoder
*encoder
;
13606 bool dpd_is_edp
= false;
13608 intel_pps_init(dev_priv
);
13611 * intel_edp_init_connector() depends on this completing first, to
13612 * prevent the registeration of both eDP and LVDS and the incorrect
13613 * sharing of the PPS.
13615 intel_lvds_init(dev_priv
);
13617 if (intel_crt_present(dev_priv
))
13618 intel_crt_init(dev_priv
);
13620 if (IS_GEN9_LP(dev_priv
)) {
13622 * FIXME: Broxton doesn't support port detection via the
13623 * DDI_BUF_CTL_A or SFUSE_STRAP registers, find another way to
13624 * detect the ports.
13626 intel_ddi_init(dev_priv
, PORT_A
);
13627 intel_ddi_init(dev_priv
, PORT_B
);
13628 intel_ddi_init(dev_priv
, PORT_C
);
13630 intel_dsi_init(dev_priv
);
13631 } else if (HAS_DDI(dev_priv
)) {
13635 * Haswell uses DDI functions to detect digital outputs.
13636 * On SKL pre-D0 the strap isn't connected, so we assume
13639 found
= I915_READ(DDI_BUF_CTL(PORT_A
)) & DDI_INIT_DISPLAY_DETECTED
;
13640 /* WaIgnoreDDIAStrap: skl */
13641 if (found
|| IS_GEN9_BC(dev_priv
))
13642 intel_ddi_init(dev_priv
, PORT_A
);
13644 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
13646 found
= I915_READ(SFUSE_STRAP
);
13648 if (found
& SFUSE_STRAP_DDIB_DETECTED
)
13649 intel_ddi_init(dev_priv
, PORT_B
);
13650 if (found
& SFUSE_STRAP_DDIC_DETECTED
)
13651 intel_ddi_init(dev_priv
, PORT_C
);
13652 if (found
& SFUSE_STRAP_DDID_DETECTED
)
13653 intel_ddi_init(dev_priv
, PORT_D
);
13655 * On SKL we don't have a way to detect DDI-E so we rely on VBT.
13657 if (IS_GEN9_BC(dev_priv
) &&
13658 (dev_priv
->vbt
.ddi_port_info
[PORT_E
].supports_dp
||
13659 dev_priv
->vbt
.ddi_port_info
[PORT_E
].supports_dvi
||
13660 dev_priv
->vbt
.ddi_port_info
[PORT_E
].supports_hdmi
))
13661 intel_ddi_init(dev_priv
, PORT_E
);
13663 } else if (HAS_PCH_SPLIT(dev_priv
)) {
13665 dpd_is_edp
= intel_dp_is_port_edp(dev_priv
, PORT_D
);
13667 if (has_edp_a(dev_priv
))
13668 intel_dp_init(dev_priv
, DP_A
, PORT_A
);
13670 if (I915_READ(PCH_HDMIB
) & SDVO_DETECTED
) {
13671 /* PCH SDVOB multiplex with HDMIB */
13672 found
= intel_sdvo_init(dev_priv
, PCH_SDVOB
, PORT_B
);
13674 intel_hdmi_init(dev_priv
, PCH_HDMIB
, PORT_B
);
13675 if (!found
&& (I915_READ(PCH_DP_B
) & DP_DETECTED
))
13676 intel_dp_init(dev_priv
, PCH_DP_B
, PORT_B
);
13679 if (I915_READ(PCH_HDMIC
) & SDVO_DETECTED
)
13680 intel_hdmi_init(dev_priv
, PCH_HDMIC
, PORT_C
);
13682 if (!dpd_is_edp
&& I915_READ(PCH_HDMID
) & SDVO_DETECTED
)
13683 intel_hdmi_init(dev_priv
, PCH_HDMID
, PORT_D
);
13685 if (I915_READ(PCH_DP_C
) & DP_DETECTED
)
13686 intel_dp_init(dev_priv
, PCH_DP_C
, PORT_C
);
13688 if (I915_READ(PCH_DP_D
) & DP_DETECTED
)
13689 intel_dp_init(dev_priv
, PCH_DP_D
, PORT_D
);
13690 } else if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) {
13691 bool has_edp
, has_port
;
13694 * The DP_DETECTED bit is the latched state of the DDC
13695 * SDA pin at boot. However since eDP doesn't require DDC
13696 * (no way to plug in a DP->HDMI dongle) the DDC pins for
13697 * eDP ports may have been muxed to an alternate function.
13698 * Thus we can't rely on the DP_DETECTED bit alone to detect
13699 * eDP ports. Consult the VBT as well as DP_DETECTED to
13700 * detect eDP ports.
13702 * Sadly the straps seem to be missing sometimes even for HDMI
13703 * ports (eg. on Voyo V3 - CHT x7-Z8700), so check both strap
13704 * and VBT for the presence of the port. Additionally we can't
13705 * trust the port type the VBT declares as we've seen at least
13706 * HDMI ports that the VBT claim are DP or eDP.
13708 has_edp
= intel_dp_is_port_edp(dev_priv
, PORT_B
);
13709 has_port
= intel_bios_is_port_present(dev_priv
, PORT_B
);
13710 if (I915_READ(VLV_DP_B
) & DP_DETECTED
|| has_port
)
13711 has_edp
&= intel_dp_init(dev_priv
, VLV_DP_B
, PORT_B
);
13712 if ((I915_READ(VLV_HDMIB
) & SDVO_DETECTED
|| has_port
) && !has_edp
)
13713 intel_hdmi_init(dev_priv
, VLV_HDMIB
, PORT_B
);
13715 has_edp
= intel_dp_is_port_edp(dev_priv
, PORT_C
);
13716 has_port
= intel_bios_is_port_present(dev_priv
, PORT_C
);
13717 if (I915_READ(VLV_DP_C
) & DP_DETECTED
|| has_port
)
13718 has_edp
&= intel_dp_init(dev_priv
, VLV_DP_C
, PORT_C
);
13719 if ((I915_READ(VLV_HDMIC
) & SDVO_DETECTED
|| has_port
) && !has_edp
)
13720 intel_hdmi_init(dev_priv
, VLV_HDMIC
, PORT_C
);
13722 if (IS_CHERRYVIEW(dev_priv
)) {
13724 * eDP not supported on port D,
13725 * so no need to worry about it
13727 has_port
= intel_bios_is_port_present(dev_priv
, PORT_D
);
13728 if (I915_READ(CHV_DP_D
) & DP_DETECTED
|| has_port
)
13729 intel_dp_init(dev_priv
, CHV_DP_D
, PORT_D
);
13730 if (I915_READ(CHV_HDMID
) & SDVO_DETECTED
|| has_port
)
13731 intel_hdmi_init(dev_priv
, CHV_HDMID
, PORT_D
);
13734 intel_dsi_init(dev_priv
);
13735 } else if (!IS_GEN2(dev_priv
) && !IS_PINEVIEW(dev_priv
)) {
13736 bool found
= false;
13738 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
13739 DRM_DEBUG_KMS("probing SDVOB\n");
13740 found
= intel_sdvo_init(dev_priv
, GEN3_SDVOB
, PORT_B
);
13741 if (!found
&& IS_G4X(dev_priv
)) {
13742 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
13743 intel_hdmi_init(dev_priv
, GEN4_HDMIB
, PORT_B
);
13746 if (!found
&& IS_G4X(dev_priv
))
13747 intel_dp_init(dev_priv
, DP_B
, PORT_B
);
13750 /* Before G4X SDVOC doesn't have its own detect register */
13752 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
13753 DRM_DEBUG_KMS("probing SDVOC\n");
13754 found
= intel_sdvo_init(dev_priv
, GEN3_SDVOC
, PORT_C
);
13757 if (!found
&& (I915_READ(GEN3_SDVOC
) & SDVO_DETECTED
)) {
13759 if (IS_G4X(dev_priv
)) {
13760 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
13761 intel_hdmi_init(dev_priv
, GEN4_HDMIC
, PORT_C
);
13763 if (IS_G4X(dev_priv
))
13764 intel_dp_init(dev_priv
, DP_C
, PORT_C
);
13767 if (IS_G4X(dev_priv
) && (I915_READ(DP_D
) & DP_DETECTED
))
13768 intel_dp_init(dev_priv
, DP_D
, PORT_D
);
13769 } else if (IS_GEN2(dev_priv
))
13770 intel_dvo_init(dev_priv
);
13772 if (SUPPORTS_TV(dev_priv
))
13773 intel_tv_init(dev_priv
);
13775 intel_psr_init(dev_priv
);
13777 for_each_intel_encoder(&dev_priv
->drm
, encoder
) {
13778 encoder
->base
.possible_crtcs
= encoder
->crtc_mask
;
13779 encoder
->base
.possible_clones
=
13780 intel_encoder_clones(encoder
);
13783 intel_init_pch_refclk(dev_priv
);
13785 drm_helper_move_panel_connectors_to_head(&dev_priv
->drm
);
13788 static void intel_user_framebuffer_destroy(struct drm_framebuffer
*fb
)
13790 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
13792 drm_framebuffer_cleanup(fb
);
13794 i915_gem_object_lock(intel_fb
->obj
);
13795 WARN_ON(!intel_fb
->obj
->framebuffer_references
--);
13796 i915_gem_object_unlock(intel_fb
->obj
);
13798 i915_gem_object_put(intel_fb
->obj
);
13803 static int intel_user_framebuffer_create_handle(struct drm_framebuffer
*fb
,
13804 struct drm_file
*file
,
13805 unsigned int *handle
)
13807 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
13808 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
13810 if (obj
->userptr
.mm
) {
13811 DRM_DEBUG("attempting to use a userptr for a framebuffer, denied\n");
13815 return drm_gem_handle_create(file
, &obj
->base
, handle
);
13818 static int intel_user_framebuffer_dirty(struct drm_framebuffer
*fb
,
13819 struct drm_file
*file
,
13820 unsigned flags
, unsigned color
,
13821 struct drm_clip_rect
*clips
,
13822 unsigned num_clips
)
13824 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
13826 i915_gem_object_flush_if_display(obj
);
13827 intel_fb_obj_flush(obj
, ORIGIN_DIRTYFB
);
13832 static const struct drm_framebuffer_funcs intel_fb_funcs
= {
13833 .destroy
= intel_user_framebuffer_destroy
,
13834 .create_handle
= intel_user_framebuffer_create_handle
,
13835 .dirty
= intel_user_framebuffer_dirty
,
13839 u32
intel_fb_pitch_limit(struct drm_i915_private
*dev_priv
,
13840 uint64_t fb_modifier
, uint32_t pixel_format
)
13842 u32 gen
= INTEL_GEN(dev_priv
);
13845 int cpp
= drm_format_plane_cpp(pixel_format
, 0);
13847 /* "The stride in bytes must not exceed the of the size of 8K
13848 * pixels and 32K bytes."
13850 return min(8192 * cpp
, 32768);
13851 } else if (gen
>= 5 && !HAS_GMCH_DISPLAY(dev_priv
)) {
13853 } else if (gen
>= 4) {
13854 if (fb_modifier
== I915_FORMAT_MOD_X_TILED
)
13858 } else if (gen
>= 3) {
13859 if (fb_modifier
== I915_FORMAT_MOD_X_TILED
)
13864 /* XXX DSPC is limited to 4k tiled */
13869 static int intel_framebuffer_init(struct intel_framebuffer
*intel_fb
,
13870 struct drm_i915_gem_object
*obj
,
13871 struct drm_mode_fb_cmd2
*mode_cmd
)
13873 struct drm_i915_private
*dev_priv
= to_i915(obj
->base
.dev
);
13874 struct drm_framebuffer
*fb
= &intel_fb
->base
;
13875 struct drm_format_name_buf format_name
;
13877 unsigned int tiling
, stride
;
13881 i915_gem_object_lock(obj
);
13882 obj
->framebuffer_references
++;
13883 tiling
= i915_gem_object_get_tiling(obj
);
13884 stride
= i915_gem_object_get_stride(obj
);
13885 i915_gem_object_unlock(obj
);
13887 if (mode_cmd
->flags
& DRM_MODE_FB_MODIFIERS
) {
13889 * If there's a fence, enforce that
13890 * the fb modifier and tiling mode match.
13892 if (tiling
!= I915_TILING_NONE
&&
13893 tiling
!= intel_fb_modifier_to_tiling(mode_cmd
->modifier
[0])) {
13894 DRM_DEBUG_KMS("tiling_mode doesn't match fb modifier\n");
13898 if (tiling
== I915_TILING_X
) {
13899 mode_cmd
->modifier
[0] = I915_FORMAT_MOD_X_TILED
;
13900 } else if (tiling
== I915_TILING_Y
) {
13901 DRM_DEBUG_KMS("No Y tiling for legacy addfb\n");
13906 /* Passed in modifier sanity checking. */
13907 switch (mode_cmd
->modifier
[0]) {
13908 case I915_FORMAT_MOD_Y_TILED_CCS
:
13909 case I915_FORMAT_MOD_Yf_TILED_CCS
:
13910 switch (mode_cmd
->pixel_format
) {
13911 case DRM_FORMAT_XBGR8888
:
13912 case DRM_FORMAT_ABGR8888
:
13913 case DRM_FORMAT_XRGB8888
:
13914 case DRM_FORMAT_ARGB8888
:
13917 DRM_DEBUG_KMS("RC supported only with RGB8888 formats\n");
13921 case I915_FORMAT_MOD_Y_TILED
:
13922 case I915_FORMAT_MOD_Yf_TILED
:
13923 if (INTEL_GEN(dev_priv
) < 9) {
13924 DRM_DEBUG_KMS("Unsupported tiling 0x%llx!\n",
13925 mode_cmd
->modifier
[0]);
13928 case DRM_FORMAT_MOD_LINEAR
:
13929 case I915_FORMAT_MOD_X_TILED
:
13932 DRM_DEBUG_KMS("Unsupported fb modifier 0x%llx!\n",
13933 mode_cmd
->modifier
[0]);
13938 * gen2/3 display engine uses the fence if present,
13939 * so the tiling mode must match the fb modifier exactly.
13941 if (INTEL_INFO(dev_priv
)->gen
< 4 &&
13942 tiling
!= intel_fb_modifier_to_tiling(mode_cmd
->modifier
[0])) {
13943 DRM_DEBUG_KMS("tiling_mode must match fb modifier exactly on gen2/3\n");
13947 pitch_limit
= intel_fb_pitch_limit(dev_priv
, mode_cmd
->modifier
[0],
13948 mode_cmd
->pixel_format
);
13949 if (mode_cmd
->pitches
[0] > pitch_limit
) {
13950 DRM_DEBUG_KMS("%s pitch (%u) must be at most %d\n",
13951 mode_cmd
->modifier
[0] != DRM_FORMAT_MOD_LINEAR
?
13952 "tiled" : "linear",
13953 mode_cmd
->pitches
[0], pitch_limit
);
13958 * If there's a fence, enforce that
13959 * the fb pitch and fence stride match.
13961 if (tiling
!= I915_TILING_NONE
&& mode_cmd
->pitches
[0] != stride
) {
13962 DRM_DEBUG_KMS("pitch (%d) must match tiling stride (%d)\n",
13963 mode_cmd
->pitches
[0], stride
);
13967 /* Reject formats not supported by any plane early. */
13968 switch (mode_cmd
->pixel_format
) {
13969 case DRM_FORMAT_C8
:
13970 case DRM_FORMAT_RGB565
:
13971 case DRM_FORMAT_XRGB8888
:
13972 case DRM_FORMAT_ARGB8888
:
13974 case DRM_FORMAT_XRGB1555
:
13975 if (INTEL_GEN(dev_priv
) > 3) {
13976 DRM_DEBUG_KMS("unsupported pixel format: %s\n",
13977 drm_get_format_name(mode_cmd
->pixel_format
, &format_name
));
13981 case DRM_FORMAT_ABGR8888
:
13982 if (!IS_VALLEYVIEW(dev_priv
) && !IS_CHERRYVIEW(dev_priv
) &&
13983 INTEL_GEN(dev_priv
) < 9) {
13984 DRM_DEBUG_KMS("unsupported pixel format: %s\n",
13985 drm_get_format_name(mode_cmd
->pixel_format
, &format_name
));
13989 case DRM_FORMAT_XBGR8888
:
13990 case DRM_FORMAT_XRGB2101010
:
13991 case DRM_FORMAT_XBGR2101010
:
13992 if (INTEL_GEN(dev_priv
) < 4) {
13993 DRM_DEBUG_KMS("unsupported pixel format: %s\n",
13994 drm_get_format_name(mode_cmd
->pixel_format
, &format_name
));
13998 case DRM_FORMAT_ABGR2101010
:
13999 if (!IS_VALLEYVIEW(dev_priv
) && !IS_CHERRYVIEW(dev_priv
)) {
14000 DRM_DEBUG_KMS("unsupported pixel format: %s\n",
14001 drm_get_format_name(mode_cmd
->pixel_format
, &format_name
));
14005 case DRM_FORMAT_YUYV
:
14006 case DRM_FORMAT_UYVY
:
14007 case DRM_FORMAT_YVYU
:
14008 case DRM_FORMAT_VYUY
:
14009 if (INTEL_GEN(dev_priv
) < 5 && !IS_G4X(dev_priv
)) {
14010 DRM_DEBUG_KMS("unsupported pixel format: %s\n",
14011 drm_get_format_name(mode_cmd
->pixel_format
, &format_name
));
14016 DRM_DEBUG_KMS("unsupported pixel format: %s\n",
14017 drm_get_format_name(mode_cmd
->pixel_format
, &format_name
));
14021 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
14022 if (mode_cmd
->offsets
[0] != 0)
14025 drm_helper_mode_fill_fb_struct(&dev_priv
->drm
, fb
, mode_cmd
);
14027 for (i
= 0; i
< fb
->format
->num_planes
; i
++) {
14028 u32 stride_alignment
;
14030 if (mode_cmd
->handles
[i
] != mode_cmd
->handles
[0]) {
14031 DRM_DEBUG_KMS("bad plane %d handle\n", i
);
14035 stride_alignment
= intel_fb_stride_alignment(fb
, i
);
14038 * Display WA #0531: skl,bxt,kbl,glk
14040 * Render decompression and plane width > 3840
14041 * combined with horizontal panning requires the
14042 * plane stride to be a multiple of 4. We'll just
14043 * require the entire fb to accommodate that to avoid
14044 * potential runtime errors at plane configuration time.
14046 if (IS_GEN9(dev_priv
) && i
== 0 && fb
->width
> 3840 &&
14047 (fb
->modifier
== I915_FORMAT_MOD_Y_TILED_CCS
||
14048 fb
->modifier
== I915_FORMAT_MOD_Yf_TILED_CCS
))
14049 stride_alignment
*= 4;
14051 if (fb
->pitches
[i
] & (stride_alignment
- 1)) {
14052 DRM_DEBUG_KMS("plane %d pitch (%d) must be at least %u byte aligned\n",
14053 i
, fb
->pitches
[i
], stride_alignment
);
14058 intel_fb
->obj
= obj
;
14060 ret
= intel_fill_fb_info(dev_priv
, fb
);
14064 ret
= drm_framebuffer_init(&dev_priv
->drm
, fb
, &intel_fb_funcs
);
14066 DRM_ERROR("framebuffer init failed %d\n", ret
);
14073 i915_gem_object_lock(obj
);
14074 obj
->framebuffer_references
--;
14075 i915_gem_object_unlock(obj
);
14079 static struct drm_framebuffer
*
14080 intel_user_framebuffer_create(struct drm_device
*dev
,
14081 struct drm_file
*filp
,
14082 const struct drm_mode_fb_cmd2
*user_mode_cmd
)
14084 struct drm_framebuffer
*fb
;
14085 struct drm_i915_gem_object
*obj
;
14086 struct drm_mode_fb_cmd2 mode_cmd
= *user_mode_cmd
;
14088 obj
= i915_gem_object_lookup(filp
, mode_cmd
.handles
[0]);
14090 return ERR_PTR(-ENOENT
);
14092 fb
= intel_framebuffer_create(obj
, &mode_cmd
);
14094 i915_gem_object_put(obj
);
14099 static void intel_atomic_state_free(struct drm_atomic_state
*state
)
14101 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
14103 drm_atomic_state_default_release(state
);
14105 i915_sw_fence_fini(&intel_state
->commit_ready
);
14110 static const struct drm_mode_config_funcs intel_mode_funcs
= {
14111 .fb_create
= intel_user_framebuffer_create
,
14112 .get_format_info
= intel_get_format_info
,
14113 .output_poll_changed
= intel_fbdev_output_poll_changed
,
14114 .atomic_check
= intel_atomic_check
,
14115 .atomic_commit
= intel_atomic_commit
,
14116 .atomic_state_alloc
= intel_atomic_state_alloc
,
14117 .atomic_state_clear
= intel_atomic_state_clear
,
14118 .atomic_state_free
= intel_atomic_state_free
,
14122 * intel_init_display_hooks - initialize the display modesetting hooks
14123 * @dev_priv: device private
14125 void intel_init_display_hooks(struct drm_i915_private
*dev_priv
)
14127 intel_init_cdclk_hooks(dev_priv
);
14129 if (INTEL_INFO(dev_priv
)->gen
>= 9) {
14130 dev_priv
->display
.get_pipe_config
= haswell_get_pipe_config
;
14131 dev_priv
->display
.get_initial_plane_config
=
14132 skylake_get_initial_plane_config
;
14133 dev_priv
->display
.crtc_compute_clock
=
14134 haswell_crtc_compute_clock
;
14135 dev_priv
->display
.crtc_enable
= haswell_crtc_enable
;
14136 dev_priv
->display
.crtc_disable
= haswell_crtc_disable
;
14137 } else if (HAS_DDI(dev_priv
)) {
14138 dev_priv
->display
.get_pipe_config
= haswell_get_pipe_config
;
14139 dev_priv
->display
.get_initial_plane_config
=
14140 ironlake_get_initial_plane_config
;
14141 dev_priv
->display
.crtc_compute_clock
=
14142 haswell_crtc_compute_clock
;
14143 dev_priv
->display
.crtc_enable
= haswell_crtc_enable
;
14144 dev_priv
->display
.crtc_disable
= haswell_crtc_disable
;
14145 } else if (HAS_PCH_SPLIT(dev_priv
)) {
14146 dev_priv
->display
.get_pipe_config
= ironlake_get_pipe_config
;
14147 dev_priv
->display
.get_initial_plane_config
=
14148 ironlake_get_initial_plane_config
;
14149 dev_priv
->display
.crtc_compute_clock
=
14150 ironlake_crtc_compute_clock
;
14151 dev_priv
->display
.crtc_enable
= ironlake_crtc_enable
;
14152 dev_priv
->display
.crtc_disable
= ironlake_crtc_disable
;
14153 } else if (IS_CHERRYVIEW(dev_priv
)) {
14154 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
14155 dev_priv
->display
.get_initial_plane_config
=
14156 i9xx_get_initial_plane_config
;
14157 dev_priv
->display
.crtc_compute_clock
= chv_crtc_compute_clock
;
14158 dev_priv
->display
.crtc_enable
= valleyview_crtc_enable
;
14159 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
14160 } else if (IS_VALLEYVIEW(dev_priv
)) {
14161 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
14162 dev_priv
->display
.get_initial_plane_config
=
14163 i9xx_get_initial_plane_config
;
14164 dev_priv
->display
.crtc_compute_clock
= vlv_crtc_compute_clock
;
14165 dev_priv
->display
.crtc_enable
= valleyview_crtc_enable
;
14166 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
14167 } else if (IS_G4X(dev_priv
)) {
14168 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
14169 dev_priv
->display
.get_initial_plane_config
=
14170 i9xx_get_initial_plane_config
;
14171 dev_priv
->display
.crtc_compute_clock
= g4x_crtc_compute_clock
;
14172 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
14173 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
14174 } else if (IS_PINEVIEW(dev_priv
)) {
14175 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
14176 dev_priv
->display
.get_initial_plane_config
=
14177 i9xx_get_initial_plane_config
;
14178 dev_priv
->display
.crtc_compute_clock
= pnv_crtc_compute_clock
;
14179 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
14180 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
14181 } else if (!IS_GEN2(dev_priv
)) {
14182 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
14183 dev_priv
->display
.get_initial_plane_config
=
14184 i9xx_get_initial_plane_config
;
14185 dev_priv
->display
.crtc_compute_clock
= i9xx_crtc_compute_clock
;
14186 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
14187 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
14189 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
14190 dev_priv
->display
.get_initial_plane_config
=
14191 i9xx_get_initial_plane_config
;
14192 dev_priv
->display
.crtc_compute_clock
= i8xx_crtc_compute_clock
;
14193 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
14194 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
14197 if (IS_GEN5(dev_priv
)) {
14198 dev_priv
->display
.fdi_link_train
= ironlake_fdi_link_train
;
14199 } else if (IS_GEN6(dev_priv
)) {
14200 dev_priv
->display
.fdi_link_train
= gen6_fdi_link_train
;
14201 } else if (IS_IVYBRIDGE(dev_priv
)) {
14202 /* FIXME: detect B0+ stepping and use auto training */
14203 dev_priv
->display
.fdi_link_train
= ivb_manual_fdi_link_train
;
14204 } else if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
)) {
14205 dev_priv
->display
.fdi_link_train
= hsw_fdi_link_train
;
14208 if (INTEL_GEN(dev_priv
) >= 9)
14209 dev_priv
->display
.update_crtcs
= skl_update_crtcs
;
14211 dev_priv
->display
.update_crtcs
= intel_update_crtcs
;
14215 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
14217 static void quirk_ssc_force_disable(struct drm_device
*dev
)
14219 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14220 dev_priv
->quirks
|= QUIRK_LVDS_SSC_DISABLE
;
14221 DRM_INFO("applying lvds SSC disable quirk\n");
14225 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
14228 static void quirk_invert_brightness(struct drm_device
*dev
)
14230 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14231 dev_priv
->quirks
|= QUIRK_INVERT_BRIGHTNESS
;
14232 DRM_INFO("applying inverted panel brightness quirk\n");
14235 /* Some VBT's incorrectly indicate no backlight is present */
14236 static void quirk_backlight_present(struct drm_device
*dev
)
14238 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14239 dev_priv
->quirks
|= QUIRK_BACKLIGHT_PRESENT
;
14240 DRM_INFO("applying backlight present quirk\n");
14243 /* Toshiba Satellite P50-C-18C requires T12 delay to be min 800ms
14244 * which is 300 ms greater than eDP spec T12 min.
14246 static void quirk_increase_t12_delay(struct drm_device
*dev
)
14248 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14250 dev_priv
->quirks
|= QUIRK_INCREASE_T12_DELAY
;
14251 DRM_INFO("Applying T12 delay quirk\n");
14255 * GeminiLake NUC HDMI outputs require additional off time
14256 * this allows the onboard retimer to correctly sync to signal
14258 static void quirk_increase_ddi_disabled_time(struct drm_device
*dev
)
14260 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14262 dev_priv
->quirks
|= QUIRK_INCREASE_DDI_DISABLED_TIME
;
14263 DRM_INFO("Applying Increase DDI Disabled quirk\n");
14266 struct intel_quirk
{
14268 int subsystem_vendor
;
14269 int subsystem_device
;
14270 void (*hook
)(struct drm_device
*dev
);
14273 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
14274 struct intel_dmi_quirk
{
14275 void (*hook
)(struct drm_device
*dev
);
14276 const struct dmi_system_id (*dmi_id_list
)[];
14279 static int intel_dmi_reverse_brightness(const struct dmi_system_id
*id
)
14281 DRM_INFO("Backlight polarity reversed on %s\n", id
->ident
);
14285 static const struct intel_dmi_quirk intel_dmi_quirks
[] = {
14287 .dmi_id_list
= &(const struct dmi_system_id
[]) {
14289 .callback
= intel_dmi_reverse_brightness
,
14290 .ident
= "NCR Corporation",
14291 .matches
= {DMI_MATCH(DMI_SYS_VENDOR
, "NCR Corporation"),
14292 DMI_MATCH(DMI_PRODUCT_NAME
, ""),
14295 { } /* terminating entry */
14297 .hook
= quirk_invert_brightness
,
14301 static struct intel_quirk intel_quirks
[] = {
14302 /* Lenovo U160 cannot use SSC on LVDS */
14303 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable
},
14305 /* Sony Vaio Y cannot use SSC on LVDS */
14306 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable
},
14308 /* Acer Aspire 5734Z must invert backlight brightness */
14309 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness
},
14311 /* Acer/eMachines G725 */
14312 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness
},
14314 /* Acer/eMachines e725 */
14315 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness
},
14317 /* Acer/Packard Bell NCL20 */
14318 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness
},
14320 /* Acer Aspire 4736Z */
14321 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness
},
14323 /* Acer Aspire 5336 */
14324 { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness
},
14326 /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */
14327 { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present
},
14329 /* Acer C720 Chromebook (Core i3 4005U) */
14330 { 0x0a16, 0x1025, 0x0a11, quirk_backlight_present
},
14332 /* Apple Macbook 2,1 (Core 2 T7400) */
14333 { 0x27a2, 0x8086, 0x7270, quirk_backlight_present
},
14335 /* Apple Macbook 4,1 */
14336 { 0x2a02, 0x106b, 0x00a1, quirk_backlight_present
},
14338 /* Toshiba CB35 Chromebook (Celeron 2955U) */
14339 { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present
},
14341 /* HP Chromebook 14 (Celeron 2955U) */
14342 { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present
},
14344 /* Dell Chromebook 11 */
14345 { 0x0a06, 0x1028, 0x0a35, quirk_backlight_present
},
14347 /* Dell Chromebook 11 (2015 version) */
14348 { 0x0a16, 0x1028, 0x0a35, quirk_backlight_present
},
14350 /* Toshiba Satellite P50-C-18C */
14351 { 0x191B, 0x1179, 0xF840, quirk_increase_t12_delay
},
14353 /* GeminiLake NUC */
14354 { 0x3185, 0x8086, 0x2072, quirk_increase_ddi_disabled_time
},
14355 { 0x3184, 0x8086, 0x2072, quirk_increase_ddi_disabled_time
},
14357 { 0x3185, 0x1849, 0x2212, quirk_increase_ddi_disabled_time
},
14358 { 0x3184, 0x1849, 0x2212, quirk_increase_ddi_disabled_time
},
14361 static void intel_init_quirks(struct drm_device
*dev
)
14363 struct pci_dev
*d
= dev
->pdev
;
14366 for (i
= 0; i
< ARRAY_SIZE(intel_quirks
); i
++) {
14367 struct intel_quirk
*q
= &intel_quirks
[i
];
14369 if (d
->device
== q
->device
&&
14370 (d
->subsystem_vendor
== q
->subsystem_vendor
||
14371 q
->subsystem_vendor
== PCI_ANY_ID
) &&
14372 (d
->subsystem_device
== q
->subsystem_device
||
14373 q
->subsystem_device
== PCI_ANY_ID
))
14376 for (i
= 0; i
< ARRAY_SIZE(intel_dmi_quirks
); i
++) {
14377 if (dmi_check_system(*intel_dmi_quirks
[i
].dmi_id_list
) != 0)
14378 intel_dmi_quirks
[i
].hook(dev
);
14382 /* Disable the VGA plane that we never use */
14383 static void i915_disable_vga(struct drm_i915_private
*dev_priv
)
14385 struct pci_dev
*pdev
= dev_priv
->drm
.pdev
;
14387 i915_reg_t vga_reg
= i915_vgacntrl_reg(dev_priv
);
14389 /* WaEnableVGAAccessThroughIOPort:ctg,elk,ilk,snb,ivb,vlv,hsw */
14390 vga_get_uninterruptible(pdev
, VGA_RSRC_LEGACY_IO
);
14391 outb(SR01
, VGA_SR_INDEX
);
14392 sr1
= inb(VGA_SR_DATA
);
14393 outb(sr1
| 1<<5, VGA_SR_DATA
);
14394 vga_put(pdev
, VGA_RSRC_LEGACY_IO
);
14397 I915_WRITE(vga_reg
, VGA_DISP_DISABLE
);
14398 POSTING_READ(vga_reg
);
14401 void intel_modeset_init_hw(struct drm_device
*dev
)
14403 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14405 intel_update_cdclk(dev_priv
);
14406 dev_priv
->cdclk
.logical
= dev_priv
->cdclk
.actual
= dev_priv
->cdclk
.hw
;
14410 * Calculate what we think the watermarks should be for the state we've read
14411 * out of the hardware and then immediately program those watermarks so that
14412 * we ensure the hardware settings match our internal state.
14414 * We can calculate what we think WM's should be by creating a duplicate of the
14415 * current state (which was constructed during hardware readout) and running it
14416 * through the atomic check code to calculate new watermark values in the
14419 static void sanitize_watermarks(struct drm_device
*dev
)
14421 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14422 struct drm_atomic_state
*state
;
14423 struct intel_atomic_state
*intel_state
;
14424 struct drm_crtc
*crtc
;
14425 struct drm_crtc_state
*cstate
;
14426 struct drm_modeset_acquire_ctx ctx
;
14430 /* Only supported on platforms that use atomic watermark design */
14431 if (!dev_priv
->display
.optimize_watermarks
)
14435 * We need to hold connection_mutex before calling duplicate_state so
14436 * that the connector loop is protected.
14438 drm_modeset_acquire_init(&ctx
, 0);
14440 ret
= drm_modeset_lock_all_ctx(dev
, &ctx
);
14441 if (ret
== -EDEADLK
) {
14442 drm_modeset_backoff(&ctx
);
14444 } else if (WARN_ON(ret
)) {
14448 state
= drm_atomic_helper_duplicate_state(dev
, &ctx
);
14449 if (WARN_ON(IS_ERR(state
)))
14452 intel_state
= to_intel_atomic_state(state
);
14455 * Hardware readout is the only time we don't want to calculate
14456 * intermediate watermarks (since we don't trust the current
14459 if (!HAS_GMCH_DISPLAY(dev_priv
))
14460 intel_state
->skip_intermediate_wm
= true;
14462 ret
= intel_atomic_check(dev
, state
);
14465 * If we fail here, it means that the hardware appears to be
14466 * programmed in a way that shouldn't be possible, given our
14467 * understanding of watermark requirements. This might mean a
14468 * mistake in the hardware readout code or a mistake in the
14469 * watermark calculations for a given platform. Raise a WARN
14470 * so that this is noticeable.
14472 * If this actually happens, we'll have to just leave the
14473 * BIOS-programmed watermarks untouched and hope for the best.
14475 WARN(true, "Could not determine valid watermarks for inherited state\n");
14479 /* Write calculated watermark values back */
14480 for_each_new_crtc_in_state(state
, crtc
, cstate
, i
) {
14481 struct intel_crtc_state
*cs
= to_intel_crtc_state(cstate
);
14483 cs
->wm
.need_postvbl_update
= true;
14484 dev_priv
->display
.optimize_watermarks(intel_state
, cs
);
14486 to_intel_crtc_state(crtc
->state
)->wm
= cs
->wm
;
14490 drm_atomic_state_put(state
);
14492 drm_modeset_drop_locks(&ctx
);
14493 drm_modeset_acquire_fini(&ctx
);
14496 int intel_modeset_init(struct drm_device
*dev
)
14498 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14499 struct i915_ggtt
*ggtt
= &dev_priv
->ggtt
;
14501 struct intel_crtc
*crtc
;
14503 dev_priv
->modeset_wq
= alloc_ordered_workqueue("i915_modeset", 0);
14505 drm_mode_config_init(dev
);
14507 dev
->mode_config
.min_width
= 0;
14508 dev
->mode_config
.min_height
= 0;
14510 dev
->mode_config
.preferred_depth
= 24;
14511 dev
->mode_config
.prefer_shadow
= 1;
14513 dev
->mode_config
.allow_fb_modifiers
= true;
14515 dev
->mode_config
.funcs
= &intel_mode_funcs
;
14517 init_llist_head(&dev_priv
->atomic_helper
.free_list
);
14518 INIT_WORK(&dev_priv
->atomic_helper
.free_work
,
14519 intel_atomic_helper_free_state_worker
);
14521 intel_init_quirks(dev
);
14523 intel_init_pm(dev_priv
);
14525 if (INTEL_INFO(dev_priv
)->num_pipes
== 0)
14529 * There may be no VBT; and if the BIOS enabled SSC we can
14530 * just keep using it to avoid unnecessary flicker. Whereas if the
14531 * BIOS isn't using it, don't assume it will work even if the VBT
14532 * indicates as much.
14534 if (HAS_PCH_IBX(dev_priv
) || HAS_PCH_CPT(dev_priv
)) {
14535 bool bios_lvds_use_ssc
= !!(I915_READ(PCH_DREF_CONTROL
) &
14538 if (dev_priv
->vbt
.lvds_use_ssc
!= bios_lvds_use_ssc
) {
14539 DRM_DEBUG_KMS("SSC %sabled by BIOS, overriding VBT which says %sabled\n",
14540 bios_lvds_use_ssc
? "en" : "dis",
14541 dev_priv
->vbt
.lvds_use_ssc
? "en" : "dis");
14542 dev_priv
->vbt
.lvds_use_ssc
= bios_lvds_use_ssc
;
14546 if (IS_GEN2(dev_priv
)) {
14547 dev
->mode_config
.max_width
= 2048;
14548 dev
->mode_config
.max_height
= 2048;
14549 } else if (IS_GEN3(dev_priv
)) {
14550 dev
->mode_config
.max_width
= 4096;
14551 dev
->mode_config
.max_height
= 4096;
14553 dev
->mode_config
.max_width
= 8192;
14554 dev
->mode_config
.max_height
= 8192;
14557 if (IS_I845G(dev_priv
) || IS_I865G(dev_priv
)) {
14558 dev
->mode_config
.cursor_width
= IS_I845G(dev_priv
) ? 64 : 512;
14559 dev
->mode_config
.cursor_height
= 1023;
14560 } else if (IS_GEN2(dev_priv
)) {
14561 dev
->mode_config
.cursor_width
= GEN2_CURSOR_WIDTH
;
14562 dev
->mode_config
.cursor_height
= GEN2_CURSOR_HEIGHT
;
14564 dev
->mode_config
.cursor_width
= MAX_CURSOR_WIDTH
;
14565 dev
->mode_config
.cursor_height
= MAX_CURSOR_HEIGHT
;
14568 dev
->mode_config
.fb_base
= ggtt
->gmadr
.start
;
14570 DRM_DEBUG_KMS("%d display pipe%s available.\n",
14571 INTEL_INFO(dev_priv
)->num_pipes
,
14572 INTEL_INFO(dev_priv
)->num_pipes
> 1 ? "s" : "");
14574 for_each_pipe(dev_priv
, pipe
) {
14577 ret
= intel_crtc_init(dev_priv
, pipe
);
14579 drm_mode_config_cleanup(dev
);
14584 intel_shared_dpll_init(dev
);
14586 intel_update_czclk(dev_priv
);
14587 intel_modeset_init_hw(dev
);
14589 if (dev_priv
->max_cdclk_freq
== 0)
14590 intel_update_max_cdclk(dev_priv
);
14592 /* Just disable it once at startup */
14593 i915_disable_vga(dev_priv
);
14594 intel_setup_outputs(dev_priv
);
14596 drm_modeset_lock_all(dev
);
14597 intel_modeset_setup_hw_state(dev
, dev
->mode_config
.acquire_ctx
);
14598 drm_modeset_unlock_all(dev
);
14600 for_each_intel_crtc(dev
, crtc
) {
14601 struct intel_initial_plane_config plane_config
= {};
14607 * Note that reserving the BIOS fb up front prevents us
14608 * from stuffing other stolen allocations like the ring
14609 * on top. This prevents some ugliness at boot time, and
14610 * can even allow for smooth boot transitions if the BIOS
14611 * fb is large enough for the active pipe configuration.
14613 dev_priv
->display
.get_initial_plane_config(crtc
,
14617 * If the fb is shared between multiple heads, we'll
14618 * just get the first one.
14620 intel_find_initial_plane_obj(crtc
, &plane_config
);
14624 * Make sure hardware watermarks really match the state we read out.
14625 * Note that we need to do this after reconstructing the BIOS fb's
14626 * since the watermark calculation done here will use pstate->fb.
14628 if (!HAS_GMCH_DISPLAY(dev_priv
))
14629 sanitize_watermarks(dev
);
14634 void i830_enable_pipe(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
14636 /* 640x480@60Hz, ~25175 kHz */
14637 struct dpll clock
= {
14647 WARN_ON(i9xx_calc_dpll_params(48000, &clock
) != 25154);
14649 DRM_DEBUG_KMS("enabling pipe %c due to force quirk (vco=%d dot=%d)\n",
14650 pipe_name(pipe
), clock
.vco
, clock
.dot
);
14652 fp
= i9xx_dpll_compute_fp(&clock
);
14653 dpll
= (I915_READ(DPLL(pipe
)) & DPLL_DVO_2X_MODE
) |
14654 DPLL_VGA_MODE_DIS
|
14655 ((clock
.p1
- 2) << DPLL_FPA01_P1_POST_DIV_SHIFT
) |
14656 PLL_P2_DIVIDE_BY_4
|
14657 PLL_REF_INPUT_DREFCLK
|
14660 I915_WRITE(FP0(pipe
), fp
);
14661 I915_WRITE(FP1(pipe
), fp
);
14663 I915_WRITE(HTOTAL(pipe
), (640 - 1) | ((800 - 1) << 16));
14664 I915_WRITE(HBLANK(pipe
), (640 - 1) | ((800 - 1) << 16));
14665 I915_WRITE(HSYNC(pipe
), (656 - 1) | ((752 - 1) << 16));
14666 I915_WRITE(VTOTAL(pipe
), (480 - 1) | ((525 - 1) << 16));
14667 I915_WRITE(VBLANK(pipe
), (480 - 1) | ((525 - 1) << 16));
14668 I915_WRITE(VSYNC(pipe
), (490 - 1) | ((492 - 1) << 16));
14669 I915_WRITE(PIPESRC(pipe
), ((640 - 1) << 16) | (480 - 1));
14672 * Apparently we need to have VGA mode enabled prior to changing
14673 * the P1/P2 dividers. Otherwise the DPLL will keep using the old
14674 * dividers, even though the register value does change.
14676 I915_WRITE(DPLL(pipe
), dpll
& ~DPLL_VGA_MODE_DIS
);
14677 I915_WRITE(DPLL(pipe
), dpll
);
14679 /* Wait for the clocks to stabilize. */
14680 POSTING_READ(DPLL(pipe
));
14683 /* The pixel multiplier can only be updated once the
14684 * DPLL is enabled and the clocks are stable.
14686 * So write it again.
14688 I915_WRITE(DPLL(pipe
), dpll
);
14690 /* We do this three times for luck */
14691 for (i
= 0; i
< 3 ; i
++) {
14692 I915_WRITE(DPLL(pipe
), dpll
);
14693 POSTING_READ(DPLL(pipe
));
14694 udelay(150); /* wait for warmup */
14697 I915_WRITE(PIPECONF(pipe
), PIPECONF_ENABLE
| PIPECONF_PROGRESSIVE
);
14698 POSTING_READ(PIPECONF(pipe
));
14701 void i830_disable_pipe(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
14703 struct intel_crtc
*crtc
= intel_get_crtc_for_pipe(dev_priv
, pipe
);
14705 DRM_DEBUG_KMS("disabling pipe %c due to force quirk\n",
14708 WARN_ON(I915_READ(DSPCNTR(PLANE_A
)) & DISPLAY_PLANE_ENABLE
);
14709 WARN_ON(I915_READ(DSPCNTR(PLANE_B
)) & DISPLAY_PLANE_ENABLE
);
14710 WARN_ON(I915_READ(DSPCNTR(PLANE_C
)) & DISPLAY_PLANE_ENABLE
);
14711 WARN_ON(I915_READ(CURCNTR(PIPE_A
)) & CURSOR_MODE
);
14712 WARN_ON(I915_READ(CURCNTR(PIPE_B
)) & CURSOR_MODE
);
14714 I915_WRITE(PIPECONF(pipe
), 0);
14715 POSTING_READ(PIPECONF(pipe
));
14717 intel_wait_for_pipe_scanline_stopped(crtc
);
14719 I915_WRITE(DPLL(pipe
), DPLL_VGA_MODE_DIS
);
14720 POSTING_READ(DPLL(pipe
));
14723 static bool intel_plane_mapping_ok(struct intel_crtc
*crtc
,
14724 struct intel_plane
*primary
)
14726 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
14727 enum plane plane
= primary
->plane
;
14728 u32 val
= I915_READ(DSPCNTR(plane
));
14730 return (val
& DISPLAY_PLANE_ENABLE
) == 0 ||
14731 (val
& DISPPLANE_SEL_PIPE_MASK
) == DISPPLANE_SEL_PIPE(crtc
->pipe
);
14735 intel_sanitize_plane_mapping(struct drm_i915_private
*dev_priv
)
14737 struct intel_crtc
*crtc
;
14739 if (INTEL_GEN(dev_priv
) >= 4)
14742 for_each_intel_crtc(&dev_priv
->drm
, crtc
) {
14743 struct intel_plane
*plane
=
14744 to_intel_plane(crtc
->base
.primary
);
14746 if (intel_plane_mapping_ok(crtc
, plane
))
14749 DRM_DEBUG_KMS("%s attached to the wrong pipe, disabling plane\n",
14751 intel_plane_disable_noatomic(crtc
, plane
);
14755 static bool intel_crtc_has_encoders(struct intel_crtc
*crtc
)
14757 struct drm_device
*dev
= crtc
->base
.dev
;
14758 struct intel_encoder
*encoder
;
14760 for_each_encoder_on_crtc(dev
, &crtc
->base
, encoder
)
14766 static struct intel_connector
*intel_encoder_find_connector(struct intel_encoder
*encoder
)
14768 struct drm_device
*dev
= encoder
->base
.dev
;
14769 struct intel_connector
*connector
;
14771 for_each_connector_on_encoder(dev
, &encoder
->base
, connector
)
14777 static bool has_pch_trancoder(struct drm_i915_private
*dev_priv
,
14778 enum pipe pch_transcoder
)
14780 return HAS_PCH_IBX(dev_priv
) || HAS_PCH_CPT(dev_priv
) ||
14781 (HAS_PCH_LPT_H(dev_priv
) && pch_transcoder
== PIPE_A
);
14784 static void intel_sanitize_crtc(struct intel_crtc
*crtc
,
14785 struct drm_modeset_acquire_ctx
*ctx
)
14787 struct drm_device
*dev
= crtc
->base
.dev
;
14788 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14789 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
14791 /* Clear any frame start delays used for debugging left by the BIOS */
14792 if (!transcoder_is_dsi(cpu_transcoder
)) {
14793 i915_reg_t reg
= PIPECONF(cpu_transcoder
);
14796 I915_READ(reg
) & ~PIPECONF_FRAME_START_DELAY_MASK
);
14799 /* restore vblank interrupts to correct state */
14800 drm_crtc_vblank_reset(&crtc
->base
);
14801 if (crtc
->active
) {
14802 struct intel_plane
*plane
;
14804 drm_crtc_vblank_on(&crtc
->base
);
14806 /* Disable everything but the primary plane */
14807 for_each_intel_plane_on_crtc(dev
, crtc
, plane
) {
14808 const struct intel_plane_state
*plane_state
=
14809 to_intel_plane_state(plane
->base
.state
);
14811 if (plane_state
->base
.visible
&&
14812 plane
->base
.type
!= DRM_PLANE_TYPE_PRIMARY
)
14813 intel_plane_disable_noatomic(crtc
, plane
);
14817 /* Adjust the state of the output pipe according to whether we
14818 * have active connectors/encoders. */
14819 if (crtc
->active
&& !intel_crtc_has_encoders(crtc
))
14820 intel_crtc_disable_noatomic(&crtc
->base
, ctx
);
14822 if (crtc
->active
|| HAS_GMCH_DISPLAY(dev_priv
)) {
14824 * We start out with underrun reporting disabled to avoid races.
14825 * For correct bookkeeping mark this on active crtcs.
14827 * Also on gmch platforms we dont have any hardware bits to
14828 * disable the underrun reporting. Which means we need to start
14829 * out with underrun reporting disabled also on inactive pipes,
14830 * since otherwise we'll complain about the garbage we read when
14831 * e.g. coming up after runtime pm.
14833 * No protection against concurrent access is required - at
14834 * worst a fifo underrun happens which also sets this to false.
14836 crtc
->cpu_fifo_underrun_disabled
= true;
14838 * We track the PCH trancoder underrun reporting state
14839 * within the crtc. With crtc for pipe A housing the underrun
14840 * reporting state for PCH transcoder A, crtc for pipe B housing
14841 * it for PCH transcoder B, etc. LPT-H has only PCH transcoder A,
14842 * and marking underrun reporting as disabled for the non-existing
14843 * PCH transcoders B and C would prevent enabling the south
14844 * error interrupt (see cpt_can_enable_serr_int()).
14846 if (has_pch_trancoder(dev_priv
, crtc
->pipe
))
14847 crtc
->pch_fifo_underrun_disabled
= true;
14851 static void intel_sanitize_encoder(struct intel_encoder
*encoder
)
14853 struct intel_connector
*connector
;
14855 /* We need to check both for a crtc link (meaning that the
14856 * encoder is active and trying to read from a pipe) and the
14857 * pipe itself being active. */
14858 bool has_active_crtc
= encoder
->base
.crtc
&&
14859 to_intel_crtc(encoder
->base
.crtc
)->active
;
14861 connector
= intel_encoder_find_connector(encoder
);
14862 if (connector
&& !has_active_crtc
) {
14863 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
14864 encoder
->base
.base
.id
,
14865 encoder
->base
.name
);
14867 /* Connector is active, but has no active pipe. This is
14868 * fallout from our resume register restoring. Disable
14869 * the encoder manually again. */
14870 if (encoder
->base
.crtc
) {
14871 struct drm_crtc_state
*crtc_state
= encoder
->base
.crtc
->state
;
14873 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
14874 encoder
->base
.base
.id
,
14875 encoder
->base
.name
);
14876 encoder
->disable(encoder
, to_intel_crtc_state(crtc_state
), connector
->base
.state
);
14877 if (encoder
->post_disable
)
14878 encoder
->post_disable(encoder
, to_intel_crtc_state(crtc_state
), connector
->base
.state
);
14880 encoder
->base
.crtc
= NULL
;
14882 /* Inconsistent output/port/pipe state happens presumably due to
14883 * a bug in one of the get_hw_state functions. Or someplace else
14884 * in our code, like the register restore mess on resume. Clamp
14885 * things to off as a safer default. */
14887 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
14888 connector
->base
.encoder
= NULL
;
14890 /* Enabled encoders without active connectors will be fixed in
14891 * the crtc fixup. */
14894 void i915_redisable_vga_power_on(struct drm_i915_private
*dev_priv
)
14896 i915_reg_t vga_reg
= i915_vgacntrl_reg(dev_priv
);
14898 if (!(I915_READ(vga_reg
) & VGA_DISP_DISABLE
)) {
14899 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
14900 i915_disable_vga(dev_priv
);
14904 void i915_redisable_vga(struct drm_i915_private
*dev_priv
)
14906 /* This function can be called both from intel_modeset_setup_hw_state or
14907 * at a very early point in our resume sequence, where the power well
14908 * structures are not yet restored. Since this function is at a very
14909 * paranoid "someone might have enabled VGA while we were not looking"
14910 * level, just check if the power well is enabled instead of trying to
14911 * follow the "don't touch the power well if we don't need it" policy
14912 * the rest of the driver uses. */
14913 if (!intel_display_power_get_if_enabled(dev_priv
, POWER_DOMAIN_VGA
))
14916 i915_redisable_vga_power_on(dev_priv
);
14918 intel_display_power_put(dev_priv
, POWER_DOMAIN_VGA
);
14921 /* FIXME read out full plane state for all planes */
14922 static void readout_plane_state(struct intel_crtc
*crtc
)
14924 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
14925 struct intel_crtc_state
*crtc_state
=
14926 to_intel_crtc_state(crtc
->base
.state
);
14927 struct intel_plane
*plane
;
14929 for_each_intel_plane_on_crtc(&dev_priv
->drm
, crtc
, plane
) {
14930 struct intel_plane_state
*plane_state
=
14931 to_intel_plane_state(plane
->base
.state
);
14932 bool visible
= plane
->get_hw_state(plane
);
14934 intel_set_plane_visible(crtc_state
, plane_state
, visible
);
14938 static void intel_modeset_readout_hw_state(struct drm_device
*dev
)
14940 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14942 struct intel_crtc
*crtc
;
14943 struct intel_encoder
*encoder
;
14944 struct intel_connector
*connector
;
14945 struct drm_connector_list_iter conn_iter
;
14948 dev_priv
->active_crtcs
= 0;
14950 for_each_intel_crtc(dev
, crtc
) {
14951 struct intel_crtc_state
*crtc_state
=
14952 to_intel_crtc_state(crtc
->base
.state
);
14954 __drm_atomic_helper_crtc_destroy_state(&crtc_state
->base
);
14955 memset(crtc_state
, 0, sizeof(*crtc_state
));
14956 crtc_state
->base
.crtc
= &crtc
->base
;
14958 crtc_state
->base
.active
= crtc_state
->base
.enable
=
14959 dev_priv
->display
.get_pipe_config(crtc
, crtc_state
);
14961 crtc
->base
.enabled
= crtc_state
->base
.enable
;
14962 crtc
->active
= crtc_state
->base
.active
;
14964 if (crtc_state
->base
.active
)
14965 dev_priv
->active_crtcs
|= 1 << crtc
->pipe
;
14967 readout_plane_state(crtc
);
14969 DRM_DEBUG_KMS("[CRTC:%d:%s] hw state readout: %s\n",
14970 crtc
->base
.base
.id
, crtc
->base
.name
,
14971 enableddisabled(crtc_state
->base
.active
));
14974 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
14975 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
14977 pll
->on
= pll
->funcs
.get_hw_state(dev_priv
, pll
,
14978 &pll
->state
.hw_state
);
14979 pll
->state
.crtc_mask
= 0;
14980 for_each_intel_crtc(dev
, crtc
) {
14981 struct intel_crtc_state
*crtc_state
=
14982 to_intel_crtc_state(crtc
->base
.state
);
14984 if (crtc_state
->base
.active
&&
14985 crtc_state
->shared_dpll
== pll
)
14986 pll
->state
.crtc_mask
|= 1 << crtc
->pipe
;
14988 pll
->active_mask
= pll
->state
.crtc_mask
;
14990 DRM_DEBUG_KMS("%s hw state readout: crtc_mask 0x%08x, on %i\n",
14991 pll
->name
, pll
->state
.crtc_mask
, pll
->on
);
14994 for_each_intel_encoder(dev
, encoder
) {
14997 if (encoder
->get_hw_state(encoder
, &pipe
)) {
14998 struct intel_crtc_state
*crtc_state
;
15000 crtc
= intel_get_crtc_for_pipe(dev_priv
, pipe
);
15001 crtc_state
= to_intel_crtc_state(crtc
->base
.state
);
15003 encoder
->base
.crtc
= &crtc
->base
;
15004 crtc_state
->output_types
|= 1 << encoder
->type
;
15005 encoder
->get_config(encoder
, crtc_state
);
15007 encoder
->base
.crtc
= NULL
;
15010 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n",
15011 encoder
->base
.base
.id
, encoder
->base
.name
,
15012 enableddisabled(encoder
->base
.crtc
),
15016 drm_connector_list_iter_begin(dev
, &conn_iter
);
15017 for_each_intel_connector_iter(connector
, &conn_iter
) {
15018 if (connector
->get_hw_state(connector
)) {
15019 connector
->base
.dpms
= DRM_MODE_DPMS_ON
;
15021 encoder
= connector
->encoder
;
15022 connector
->base
.encoder
= &encoder
->base
;
15024 if (encoder
->base
.crtc
&&
15025 encoder
->base
.crtc
->state
->active
) {
15027 * This has to be done during hardware readout
15028 * because anything calling .crtc_disable may
15029 * rely on the connector_mask being accurate.
15031 encoder
->base
.crtc
->state
->connector_mask
|=
15032 1 << drm_connector_index(&connector
->base
);
15033 encoder
->base
.crtc
->state
->encoder_mask
|=
15034 1 << drm_encoder_index(&encoder
->base
);
15038 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
15039 connector
->base
.encoder
= NULL
;
15041 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
15042 connector
->base
.base
.id
, connector
->base
.name
,
15043 enableddisabled(connector
->base
.encoder
));
15045 drm_connector_list_iter_end(&conn_iter
);
15047 for_each_intel_crtc(dev
, crtc
) {
15048 struct intel_crtc_state
*crtc_state
=
15049 to_intel_crtc_state(crtc
->base
.state
);
15052 memset(&crtc
->base
.mode
, 0, sizeof(crtc
->base
.mode
));
15053 if (crtc_state
->base
.active
) {
15054 intel_mode_from_pipe_config(&crtc
->base
.mode
, crtc_state
);
15055 intel_mode_from_pipe_config(&crtc_state
->base
.adjusted_mode
, crtc_state
);
15056 WARN_ON(drm_atomic_set_mode_for_crtc(crtc
->base
.state
, &crtc
->base
.mode
));
15059 * The initial mode needs to be set in order to keep
15060 * the atomic core happy. It wants a valid mode if the
15061 * crtc's enabled, so we do the above call.
15063 * But we don't set all the derived state fully, hence
15064 * set a flag to indicate that a full recalculation is
15065 * needed on the next commit.
15067 crtc_state
->base
.mode
.private_flags
= I915_MODE_FLAG_INHERITED
;
15069 intel_crtc_compute_pixel_rate(crtc_state
);
15071 if (dev_priv
->display
.modeset_calc_cdclk
) {
15072 min_cdclk
= intel_crtc_compute_min_cdclk(crtc_state
);
15073 if (WARN_ON(min_cdclk
< 0))
15077 drm_calc_timestamping_constants(&crtc
->base
,
15078 &crtc_state
->base
.adjusted_mode
);
15079 update_scanline_offset(crtc
);
15082 dev_priv
->min_cdclk
[crtc
->pipe
] = min_cdclk
;
15084 intel_pipe_config_sanity_check(dev_priv
, crtc_state
);
15089 get_encoder_power_domains(struct drm_i915_private
*dev_priv
)
15091 struct intel_encoder
*encoder
;
15093 for_each_intel_encoder(&dev_priv
->drm
, encoder
) {
15095 enum intel_display_power_domain domain
;
15097 if (!encoder
->get_power_domains
)
15100 get_domains
= encoder
->get_power_domains(encoder
);
15101 for_each_power_domain(domain
, get_domains
)
15102 intel_display_power_get(dev_priv
, domain
);
15106 /* Scan out the current hw modeset state,
15107 * and sanitizes it to the current state
15110 intel_modeset_setup_hw_state(struct drm_device
*dev
,
15111 struct drm_modeset_acquire_ctx
*ctx
)
15113 struct drm_i915_private
*dev_priv
= to_i915(dev
);
15115 struct intel_crtc
*crtc
;
15116 struct intel_encoder
*encoder
;
15119 if (IS_HASWELL(dev_priv
)) {
15121 * WaRsPkgCStateDisplayPMReq:hsw
15122 * System hang if this isn't done before disabling all planes!
15124 I915_WRITE(CHICKEN_PAR1_1
,
15125 I915_READ(CHICKEN_PAR1_1
) | FORCE_ARB_IDLE_PLANES
);
15128 intel_modeset_readout_hw_state(dev
);
15130 /* HW state is read out, now we need to sanitize this mess. */
15131 get_encoder_power_domains(dev_priv
);
15133 intel_sanitize_plane_mapping(dev_priv
);
15135 for_each_intel_encoder(dev
, encoder
) {
15136 intel_sanitize_encoder(encoder
);
15139 for_each_pipe(dev_priv
, pipe
) {
15140 crtc
= intel_get_crtc_for_pipe(dev_priv
, pipe
);
15142 intel_sanitize_crtc(crtc
, ctx
);
15143 intel_dump_pipe_config(crtc
, crtc
->config
,
15144 "[setup_hw_state]");
15147 intel_modeset_update_connector_atomic_state(dev
);
15149 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
15150 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
15152 if (!pll
->on
|| pll
->active_mask
)
15155 DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll
->name
);
15157 pll
->funcs
.disable(dev_priv
, pll
);
15161 if (IS_G4X(dev_priv
)) {
15162 g4x_wm_get_hw_state(dev
);
15163 g4x_wm_sanitize(dev_priv
);
15164 } else if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) {
15165 vlv_wm_get_hw_state(dev
);
15166 vlv_wm_sanitize(dev_priv
);
15167 } else if (INTEL_GEN(dev_priv
) >= 9) {
15168 skl_wm_get_hw_state(dev
);
15169 } else if (HAS_PCH_SPLIT(dev_priv
)) {
15170 ilk_wm_get_hw_state(dev
);
15173 for_each_intel_crtc(dev
, crtc
) {
15176 put_domains
= modeset_get_crtc_power_domains(&crtc
->base
, crtc
->config
);
15177 if (WARN_ON(put_domains
))
15178 modeset_put_power_domains(dev_priv
, put_domains
);
15180 intel_display_set_init_power(dev_priv
, false);
15182 intel_power_domains_verify_state(dev_priv
);
15184 intel_fbc_init_pipe_state(dev_priv
);
15187 void intel_display_resume(struct drm_device
*dev
)
15189 struct drm_i915_private
*dev_priv
= to_i915(dev
);
15190 struct drm_atomic_state
*state
= dev_priv
->modeset_restore_state
;
15191 struct drm_modeset_acquire_ctx ctx
;
15194 dev_priv
->modeset_restore_state
= NULL
;
15196 state
->acquire_ctx
= &ctx
;
15198 drm_modeset_acquire_init(&ctx
, 0);
15201 ret
= drm_modeset_lock_all_ctx(dev
, &ctx
);
15202 if (ret
!= -EDEADLK
)
15205 drm_modeset_backoff(&ctx
);
15209 ret
= __intel_display_resume(dev
, state
, &ctx
);
15211 intel_enable_ipc(dev_priv
);
15212 drm_modeset_drop_locks(&ctx
);
15213 drm_modeset_acquire_fini(&ctx
);
15216 DRM_ERROR("Restoring old state failed with %i\n", ret
);
15218 drm_atomic_state_put(state
);
15221 void intel_modeset_gem_init(struct drm_device
*dev
)
15223 struct drm_i915_private
*dev_priv
= to_i915(dev
);
15225 intel_init_gt_powersave(dev_priv
);
15227 intel_init_clock_gating(dev_priv
);
15229 intel_setup_overlay(dev_priv
);
15232 int intel_connector_register(struct drm_connector
*connector
)
15234 struct intel_connector
*intel_connector
= to_intel_connector(connector
);
15237 ret
= intel_backlight_device_register(intel_connector
);
15247 void intel_connector_unregister(struct drm_connector
*connector
)
15249 struct intel_connector
*intel_connector
= to_intel_connector(connector
);
15251 intel_backlight_device_unregister(intel_connector
);
15252 intel_panel_destroy_backlight(connector
);
15255 static void intel_hpd_poll_fini(struct drm_device
*dev
)
15257 struct intel_connector
*connector
;
15258 struct drm_connector_list_iter conn_iter
;
15260 /* First disable polling... */
15261 drm_kms_helper_poll_fini(dev
);
15263 /* Then kill the work that may have been queued by hpd. */
15264 drm_connector_list_iter_begin(dev
, &conn_iter
);
15265 for_each_intel_connector_iter(connector
, &conn_iter
) {
15266 if (connector
->modeset_retry_work
.func
)
15267 cancel_work_sync(&connector
->modeset_retry_work
);
15269 drm_connector_list_iter_end(&conn_iter
);
15272 void intel_modeset_cleanup(struct drm_device
*dev
)
15274 struct drm_i915_private
*dev_priv
= to_i915(dev
);
15276 flush_work(&dev_priv
->atomic_helper
.free_work
);
15277 WARN_ON(!llist_empty(&dev_priv
->atomic_helper
.free_list
));
15279 intel_disable_gt_powersave(dev_priv
);
15282 * Interrupts and polling as the first thing to avoid creating havoc.
15283 * Too much stuff here (turning of connectors, ...) would
15284 * experience fancy races otherwise.
15286 intel_irq_uninstall(dev_priv
);
15289 * Due to the hpd irq storm handling the hotplug work can re-arm the
15290 * poll handlers. Hence disable polling after hpd handling is shut down.
15292 intel_hpd_poll_fini(dev
);
15294 /* poll work can call into fbdev, hence clean that up afterwards */
15295 intel_fbdev_fini(dev_priv
);
15297 intel_unregister_dsm_handler();
15299 intel_fbc_global_disable(dev_priv
);
15301 /* flush any delayed tasks or pending work */
15302 flush_scheduled_work();
15304 drm_mode_config_cleanup(dev
);
15306 intel_cleanup_overlay(dev_priv
);
15308 intel_cleanup_gt_powersave(dev_priv
);
15310 intel_teardown_gmbus(dev_priv
);
15312 destroy_workqueue(dev_priv
->modeset_wq
);
15315 void intel_connector_attach_encoder(struct intel_connector
*connector
,
15316 struct intel_encoder
*encoder
)
15318 connector
->encoder
= encoder
;
15319 drm_mode_connector_attach_encoder(&connector
->base
,
15324 * set vga decode state - true == enable VGA decode
15326 int intel_modeset_vga_set_state(struct drm_i915_private
*dev_priv
, bool state
)
15328 unsigned reg
= INTEL_GEN(dev_priv
) >= 6 ? SNB_GMCH_CTRL
: INTEL_GMCH_CTRL
;
15331 if (pci_read_config_word(dev_priv
->bridge_dev
, reg
, &gmch_ctrl
)) {
15332 DRM_ERROR("failed to read control word\n");
15336 if (!!(gmch_ctrl
& INTEL_GMCH_VGA_DISABLE
) == !state
)
15340 gmch_ctrl
&= ~INTEL_GMCH_VGA_DISABLE
;
15342 gmch_ctrl
|= INTEL_GMCH_VGA_DISABLE
;
15344 if (pci_write_config_word(dev_priv
->bridge_dev
, reg
, gmch_ctrl
)) {
15345 DRM_ERROR("failed to write control word\n");
15352 #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
15354 struct intel_display_error_state
{
15356 u32 power_well_driver
;
15358 int num_transcoders
;
15360 struct intel_cursor_error_state
{
15365 } cursor
[I915_MAX_PIPES
];
15367 struct intel_pipe_error_state
{
15368 bool power_domain_on
;
15371 } pipe
[I915_MAX_PIPES
];
15373 struct intel_plane_error_state
{
15381 } plane
[I915_MAX_PIPES
];
15383 struct intel_transcoder_error_state
{
15384 bool power_domain_on
;
15385 enum transcoder cpu_transcoder
;
15398 struct intel_display_error_state
*
15399 intel_display_capture_error_state(struct drm_i915_private
*dev_priv
)
15401 struct intel_display_error_state
*error
;
15402 int transcoders
[] = {
15410 if (INTEL_INFO(dev_priv
)->num_pipes
== 0)
15413 error
= kzalloc(sizeof(*error
), GFP_ATOMIC
);
15417 if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
))
15418 error
->power_well_driver
=
15419 I915_READ(HSW_PWR_WELL_CTL_DRIVER(HSW_DISP_PW_GLOBAL
));
15421 for_each_pipe(dev_priv
, i
) {
15422 error
->pipe
[i
].power_domain_on
=
15423 __intel_display_power_is_enabled(dev_priv
,
15424 POWER_DOMAIN_PIPE(i
));
15425 if (!error
->pipe
[i
].power_domain_on
)
15428 error
->cursor
[i
].control
= I915_READ(CURCNTR(i
));
15429 error
->cursor
[i
].position
= I915_READ(CURPOS(i
));
15430 error
->cursor
[i
].base
= I915_READ(CURBASE(i
));
15432 error
->plane
[i
].control
= I915_READ(DSPCNTR(i
));
15433 error
->plane
[i
].stride
= I915_READ(DSPSTRIDE(i
));
15434 if (INTEL_GEN(dev_priv
) <= 3) {
15435 error
->plane
[i
].size
= I915_READ(DSPSIZE(i
));
15436 error
->plane
[i
].pos
= I915_READ(DSPPOS(i
));
15438 if (INTEL_GEN(dev_priv
) <= 7 && !IS_HASWELL(dev_priv
))
15439 error
->plane
[i
].addr
= I915_READ(DSPADDR(i
));
15440 if (INTEL_GEN(dev_priv
) >= 4) {
15441 error
->plane
[i
].surface
= I915_READ(DSPSURF(i
));
15442 error
->plane
[i
].tile_offset
= I915_READ(DSPTILEOFF(i
));
15445 error
->pipe
[i
].source
= I915_READ(PIPESRC(i
));
15447 if (HAS_GMCH_DISPLAY(dev_priv
))
15448 error
->pipe
[i
].stat
= I915_READ(PIPESTAT(i
));
15451 /* Note: this does not include DSI transcoders. */
15452 error
->num_transcoders
= INTEL_INFO(dev_priv
)->num_pipes
;
15453 if (HAS_DDI(dev_priv
))
15454 error
->num_transcoders
++; /* Account for eDP. */
15456 for (i
= 0; i
< error
->num_transcoders
; i
++) {
15457 enum transcoder cpu_transcoder
= transcoders
[i
];
15459 error
->transcoder
[i
].power_domain_on
=
15460 __intel_display_power_is_enabled(dev_priv
,
15461 POWER_DOMAIN_TRANSCODER(cpu_transcoder
));
15462 if (!error
->transcoder
[i
].power_domain_on
)
15465 error
->transcoder
[i
].cpu_transcoder
= cpu_transcoder
;
15467 error
->transcoder
[i
].conf
= I915_READ(PIPECONF(cpu_transcoder
));
15468 error
->transcoder
[i
].htotal
= I915_READ(HTOTAL(cpu_transcoder
));
15469 error
->transcoder
[i
].hblank
= I915_READ(HBLANK(cpu_transcoder
));
15470 error
->transcoder
[i
].hsync
= I915_READ(HSYNC(cpu_transcoder
));
15471 error
->transcoder
[i
].vtotal
= I915_READ(VTOTAL(cpu_transcoder
));
15472 error
->transcoder
[i
].vblank
= I915_READ(VBLANK(cpu_transcoder
));
15473 error
->transcoder
[i
].vsync
= I915_READ(VSYNC(cpu_transcoder
));
15479 #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
15482 intel_display_print_error_state(struct drm_i915_error_state_buf
*m
,
15483 struct intel_display_error_state
*error
)
15485 struct drm_i915_private
*dev_priv
= m
->i915
;
15491 err_printf(m
, "Num Pipes: %d\n", INTEL_INFO(dev_priv
)->num_pipes
);
15492 if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
))
15493 err_printf(m
, "PWR_WELL_CTL2: %08x\n",
15494 error
->power_well_driver
);
15495 for_each_pipe(dev_priv
, i
) {
15496 err_printf(m
, "Pipe [%d]:\n", i
);
15497 err_printf(m
, " Power: %s\n",
15498 onoff(error
->pipe
[i
].power_domain_on
));
15499 err_printf(m
, " SRC: %08x\n", error
->pipe
[i
].source
);
15500 err_printf(m
, " STAT: %08x\n", error
->pipe
[i
].stat
);
15502 err_printf(m
, "Plane [%d]:\n", i
);
15503 err_printf(m
, " CNTR: %08x\n", error
->plane
[i
].control
);
15504 err_printf(m
, " STRIDE: %08x\n", error
->plane
[i
].stride
);
15505 if (INTEL_GEN(dev_priv
) <= 3) {
15506 err_printf(m
, " SIZE: %08x\n", error
->plane
[i
].size
);
15507 err_printf(m
, " POS: %08x\n", error
->plane
[i
].pos
);
15509 if (INTEL_GEN(dev_priv
) <= 7 && !IS_HASWELL(dev_priv
))
15510 err_printf(m
, " ADDR: %08x\n", error
->plane
[i
].addr
);
15511 if (INTEL_GEN(dev_priv
) >= 4) {
15512 err_printf(m
, " SURF: %08x\n", error
->plane
[i
].surface
);
15513 err_printf(m
, " TILEOFF: %08x\n", error
->plane
[i
].tile_offset
);
15516 err_printf(m
, "Cursor [%d]:\n", i
);
15517 err_printf(m
, " CNTR: %08x\n", error
->cursor
[i
].control
);
15518 err_printf(m
, " POS: %08x\n", error
->cursor
[i
].position
);
15519 err_printf(m
, " BASE: %08x\n", error
->cursor
[i
].base
);
15522 for (i
= 0; i
< error
->num_transcoders
; i
++) {
15523 err_printf(m
, "CPU transcoder: %s\n",
15524 transcoder_name(error
->transcoder
[i
].cpu_transcoder
));
15525 err_printf(m
, " Power: %s\n",
15526 onoff(error
->transcoder
[i
].power_domain_on
));
15527 err_printf(m
, " CONF: %08x\n", error
->transcoder
[i
].conf
);
15528 err_printf(m
, " HTOTAL: %08x\n", error
->transcoder
[i
].htotal
);
15529 err_printf(m
, " HBLANK: %08x\n", error
->transcoder
[i
].hblank
);
15530 err_printf(m
, " HSYNC: %08x\n", error
->transcoder
[i
].hsync
);
15531 err_printf(m
, " VTOTAL: %08x\n", error
->transcoder
[i
].vtotal
);
15532 err_printf(m
, " VBLANK: %08x\n", error
->transcoder
[i
].vblank
);
15533 err_printf(m
, " VSYNC: %08x\n", error
->transcoder
[i
].vsync
);