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 static bool is_mmio_work(struct intel_flip_work
*work
)
54 return work
->mmio_work
.func
;
57 /* Primary plane formats for gen <= 3 */
58 static const uint32_t i8xx_primary_formats
[] = {
65 /* Primary plane formats for gen >= 4 */
66 static const uint32_t i965_primary_formats
[] = {
71 DRM_FORMAT_XRGB2101010
,
72 DRM_FORMAT_XBGR2101010
,
75 static const uint32_t skl_primary_formats
[] = {
82 DRM_FORMAT_XRGB2101010
,
83 DRM_FORMAT_XBGR2101010
,
91 static const uint32_t intel_cursor_formats
[] = {
95 static void i9xx_crtc_clock_get(struct intel_crtc
*crtc
,
96 struct intel_crtc_state
*pipe_config
);
97 static void ironlake_pch_clock_get(struct intel_crtc
*crtc
,
98 struct intel_crtc_state
*pipe_config
);
100 static int intel_framebuffer_init(struct intel_framebuffer
*ifb
,
101 struct drm_i915_gem_object
*obj
,
102 struct drm_mode_fb_cmd2
*mode_cmd
);
103 static void i9xx_set_pipeconf(struct intel_crtc
*intel_crtc
);
104 static void intel_set_pipe_timings(struct intel_crtc
*intel_crtc
);
105 static void intel_set_pipe_src_size(struct intel_crtc
*intel_crtc
);
106 static void intel_cpu_transcoder_set_m_n(struct intel_crtc
*crtc
,
107 struct intel_link_m_n
*m_n
,
108 struct intel_link_m_n
*m2_n2
);
109 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
);
110 static void haswell_set_pipeconf(struct drm_crtc
*crtc
);
111 static void haswell_set_pipemisc(struct drm_crtc
*crtc
);
112 static void vlv_prepare_pll(struct intel_crtc
*crtc
,
113 const struct intel_crtc_state
*pipe_config
);
114 static void chv_prepare_pll(struct intel_crtc
*crtc
,
115 const struct intel_crtc_state
*pipe_config
);
116 static void intel_begin_crtc_commit(struct drm_crtc
*, struct drm_crtc_state
*);
117 static void intel_finish_crtc_commit(struct drm_crtc
*, struct drm_crtc_state
*);
118 static void intel_crtc_init_scalers(struct intel_crtc
*crtc
,
119 struct intel_crtc_state
*crtc_state
);
120 static void skylake_pfit_enable(struct intel_crtc
*crtc
);
121 static void ironlake_pfit_disable(struct intel_crtc
*crtc
, bool force
);
122 static void ironlake_pfit_enable(struct intel_crtc
*crtc
);
123 static void intel_modeset_setup_hw_state(struct drm_device
*dev
,
124 struct drm_modeset_acquire_ctx
*ctx
);
125 static void intel_pre_disable_primary_noatomic(struct drm_crtc
*crtc
);
130 } dot
, vco
, n
, m
, m1
, m2
, p
, p1
;
134 int p2_slow
, p2_fast
;
138 /* returns HPLL frequency in kHz */
139 int vlv_get_hpll_vco(struct drm_i915_private
*dev_priv
)
141 int hpll_freq
, vco_freq
[] = { 800, 1600, 2000, 2400 };
143 /* Obtain SKU information */
144 mutex_lock(&dev_priv
->sb_lock
);
145 hpll_freq
= vlv_cck_read(dev_priv
, CCK_FUSE_REG
) &
146 CCK_FUSE_HPLL_FREQ_MASK
;
147 mutex_unlock(&dev_priv
->sb_lock
);
149 return vco_freq
[hpll_freq
] * 1000;
152 int vlv_get_cck_clock(struct drm_i915_private
*dev_priv
,
153 const char *name
, u32 reg
, int ref_freq
)
158 mutex_lock(&dev_priv
->sb_lock
);
159 val
= vlv_cck_read(dev_priv
, reg
);
160 mutex_unlock(&dev_priv
->sb_lock
);
162 divider
= val
& CCK_FREQUENCY_VALUES
;
164 WARN((val
& CCK_FREQUENCY_STATUS
) !=
165 (divider
<< CCK_FREQUENCY_STATUS_SHIFT
),
166 "%s change in progress\n", name
);
168 return DIV_ROUND_CLOSEST(ref_freq
<< 1, divider
+ 1);
171 int vlv_get_cck_clock_hpll(struct drm_i915_private
*dev_priv
,
172 const char *name
, u32 reg
)
174 if (dev_priv
->hpll_freq
== 0)
175 dev_priv
->hpll_freq
= vlv_get_hpll_vco(dev_priv
);
177 return vlv_get_cck_clock(dev_priv
, name
, reg
,
178 dev_priv
->hpll_freq
);
181 static void intel_update_czclk(struct drm_i915_private
*dev_priv
)
183 if (!(IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)))
186 dev_priv
->czclk_freq
= vlv_get_cck_clock_hpll(dev_priv
, "czclk",
187 CCK_CZ_CLOCK_CONTROL
);
189 DRM_DEBUG_DRIVER("CZ clock rate: %d kHz\n", dev_priv
->czclk_freq
);
192 static inline u32
/* units of 100MHz */
193 intel_fdi_link_freq(struct drm_i915_private
*dev_priv
,
194 const struct intel_crtc_state
*pipe_config
)
196 if (HAS_DDI(dev_priv
))
197 return pipe_config
->port_clock
; /* SPLL */
198 else if (IS_GEN5(dev_priv
))
199 return ((I915_READ(FDI_PLL_BIOS_0
) & FDI_PLL_FB_CLOCK_MASK
) + 2) * 10000;
204 static const struct intel_limit intel_limits_i8xx_dac
= {
205 .dot
= { .min
= 25000, .max
= 350000 },
206 .vco
= { .min
= 908000, .max
= 1512000 },
207 .n
= { .min
= 2, .max
= 16 },
208 .m
= { .min
= 96, .max
= 140 },
209 .m1
= { .min
= 18, .max
= 26 },
210 .m2
= { .min
= 6, .max
= 16 },
211 .p
= { .min
= 4, .max
= 128 },
212 .p1
= { .min
= 2, .max
= 33 },
213 .p2
= { .dot_limit
= 165000,
214 .p2_slow
= 4, .p2_fast
= 2 },
217 static const struct intel_limit intel_limits_i8xx_dvo
= {
218 .dot
= { .min
= 25000, .max
= 350000 },
219 .vco
= { .min
= 908000, .max
= 1512000 },
220 .n
= { .min
= 2, .max
= 16 },
221 .m
= { .min
= 96, .max
= 140 },
222 .m1
= { .min
= 18, .max
= 26 },
223 .m2
= { .min
= 6, .max
= 16 },
224 .p
= { .min
= 4, .max
= 128 },
225 .p1
= { .min
= 2, .max
= 33 },
226 .p2
= { .dot_limit
= 165000,
227 .p2_slow
= 4, .p2_fast
= 4 },
230 static const struct intel_limit intel_limits_i8xx_lvds
= {
231 .dot
= { .min
= 25000, .max
= 350000 },
232 .vco
= { .min
= 908000, .max
= 1512000 },
233 .n
= { .min
= 2, .max
= 16 },
234 .m
= { .min
= 96, .max
= 140 },
235 .m1
= { .min
= 18, .max
= 26 },
236 .m2
= { .min
= 6, .max
= 16 },
237 .p
= { .min
= 4, .max
= 128 },
238 .p1
= { .min
= 1, .max
= 6 },
239 .p2
= { .dot_limit
= 165000,
240 .p2_slow
= 14, .p2_fast
= 7 },
243 static const struct intel_limit intel_limits_i9xx_sdvo
= {
244 .dot
= { .min
= 20000, .max
= 400000 },
245 .vco
= { .min
= 1400000, .max
= 2800000 },
246 .n
= { .min
= 1, .max
= 6 },
247 .m
= { .min
= 70, .max
= 120 },
248 .m1
= { .min
= 8, .max
= 18 },
249 .m2
= { .min
= 3, .max
= 7 },
250 .p
= { .min
= 5, .max
= 80 },
251 .p1
= { .min
= 1, .max
= 8 },
252 .p2
= { .dot_limit
= 200000,
253 .p2_slow
= 10, .p2_fast
= 5 },
256 static const struct intel_limit intel_limits_i9xx_lvds
= {
257 .dot
= { .min
= 20000, .max
= 400000 },
258 .vco
= { .min
= 1400000, .max
= 2800000 },
259 .n
= { .min
= 1, .max
= 6 },
260 .m
= { .min
= 70, .max
= 120 },
261 .m1
= { .min
= 8, .max
= 18 },
262 .m2
= { .min
= 3, .max
= 7 },
263 .p
= { .min
= 7, .max
= 98 },
264 .p1
= { .min
= 1, .max
= 8 },
265 .p2
= { .dot_limit
= 112000,
266 .p2_slow
= 14, .p2_fast
= 7 },
270 static const struct intel_limit intel_limits_g4x_sdvo
= {
271 .dot
= { .min
= 25000, .max
= 270000 },
272 .vco
= { .min
= 1750000, .max
= 3500000},
273 .n
= { .min
= 1, .max
= 4 },
274 .m
= { .min
= 104, .max
= 138 },
275 .m1
= { .min
= 17, .max
= 23 },
276 .m2
= { .min
= 5, .max
= 11 },
277 .p
= { .min
= 10, .max
= 30 },
278 .p1
= { .min
= 1, .max
= 3},
279 .p2
= { .dot_limit
= 270000,
285 static const struct intel_limit intel_limits_g4x_hdmi
= {
286 .dot
= { .min
= 22000, .max
= 400000 },
287 .vco
= { .min
= 1750000, .max
= 3500000},
288 .n
= { .min
= 1, .max
= 4 },
289 .m
= { .min
= 104, .max
= 138 },
290 .m1
= { .min
= 16, .max
= 23 },
291 .m2
= { .min
= 5, .max
= 11 },
292 .p
= { .min
= 5, .max
= 80 },
293 .p1
= { .min
= 1, .max
= 8},
294 .p2
= { .dot_limit
= 165000,
295 .p2_slow
= 10, .p2_fast
= 5 },
298 static const struct intel_limit intel_limits_g4x_single_channel_lvds
= {
299 .dot
= { .min
= 20000, .max
= 115000 },
300 .vco
= { .min
= 1750000, .max
= 3500000 },
301 .n
= { .min
= 1, .max
= 3 },
302 .m
= { .min
= 104, .max
= 138 },
303 .m1
= { .min
= 17, .max
= 23 },
304 .m2
= { .min
= 5, .max
= 11 },
305 .p
= { .min
= 28, .max
= 112 },
306 .p1
= { .min
= 2, .max
= 8 },
307 .p2
= { .dot_limit
= 0,
308 .p2_slow
= 14, .p2_fast
= 14
312 static const struct intel_limit intel_limits_g4x_dual_channel_lvds
= {
313 .dot
= { .min
= 80000, .max
= 224000 },
314 .vco
= { .min
= 1750000, .max
= 3500000 },
315 .n
= { .min
= 1, .max
= 3 },
316 .m
= { .min
= 104, .max
= 138 },
317 .m1
= { .min
= 17, .max
= 23 },
318 .m2
= { .min
= 5, .max
= 11 },
319 .p
= { .min
= 14, .max
= 42 },
320 .p1
= { .min
= 2, .max
= 6 },
321 .p2
= { .dot_limit
= 0,
322 .p2_slow
= 7, .p2_fast
= 7
326 static const struct intel_limit intel_limits_pineview_sdvo
= {
327 .dot
= { .min
= 20000, .max
= 400000},
328 .vco
= { .min
= 1700000, .max
= 3500000 },
329 /* Pineview's Ncounter is a ring counter */
330 .n
= { .min
= 3, .max
= 6 },
331 .m
= { .min
= 2, .max
= 256 },
332 /* Pineview only has one combined m divider, which we treat as m2. */
333 .m1
= { .min
= 0, .max
= 0 },
334 .m2
= { .min
= 0, .max
= 254 },
335 .p
= { .min
= 5, .max
= 80 },
336 .p1
= { .min
= 1, .max
= 8 },
337 .p2
= { .dot_limit
= 200000,
338 .p2_slow
= 10, .p2_fast
= 5 },
341 static const struct intel_limit intel_limits_pineview_lvds
= {
342 .dot
= { .min
= 20000, .max
= 400000 },
343 .vco
= { .min
= 1700000, .max
= 3500000 },
344 .n
= { .min
= 3, .max
= 6 },
345 .m
= { .min
= 2, .max
= 256 },
346 .m1
= { .min
= 0, .max
= 0 },
347 .m2
= { .min
= 0, .max
= 254 },
348 .p
= { .min
= 7, .max
= 112 },
349 .p1
= { .min
= 1, .max
= 8 },
350 .p2
= { .dot_limit
= 112000,
351 .p2_slow
= 14, .p2_fast
= 14 },
354 /* Ironlake / Sandybridge
356 * We calculate clock using (register_value + 2) for N/M1/M2, so here
357 * the range value for them is (actual_value - 2).
359 static const struct intel_limit intel_limits_ironlake_dac
= {
360 .dot
= { .min
= 25000, .max
= 350000 },
361 .vco
= { .min
= 1760000, .max
= 3510000 },
362 .n
= { .min
= 1, .max
= 5 },
363 .m
= { .min
= 79, .max
= 127 },
364 .m1
= { .min
= 12, .max
= 22 },
365 .m2
= { .min
= 5, .max
= 9 },
366 .p
= { .min
= 5, .max
= 80 },
367 .p1
= { .min
= 1, .max
= 8 },
368 .p2
= { .dot_limit
= 225000,
369 .p2_slow
= 10, .p2_fast
= 5 },
372 static const struct intel_limit intel_limits_ironlake_single_lvds
= {
373 .dot
= { .min
= 25000, .max
= 350000 },
374 .vco
= { .min
= 1760000, .max
= 3510000 },
375 .n
= { .min
= 1, .max
= 3 },
376 .m
= { .min
= 79, .max
= 118 },
377 .m1
= { .min
= 12, .max
= 22 },
378 .m2
= { .min
= 5, .max
= 9 },
379 .p
= { .min
= 28, .max
= 112 },
380 .p1
= { .min
= 2, .max
= 8 },
381 .p2
= { .dot_limit
= 225000,
382 .p2_slow
= 14, .p2_fast
= 14 },
385 static const struct intel_limit intel_limits_ironlake_dual_lvds
= {
386 .dot
= { .min
= 25000, .max
= 350000 },
387 .vco
= { .min
= 1760000, .max
= 3510000 },
388 .n
= { .min
= 1, .max
= 3 },
389 .m
= { .min
= 79, .max
= 127 },
390 .m1
= { .min
= 12, .max
= 22 },
391 .m2
= { .min
= 5, .max
= 9 },
392 .p
= { .min
= 14, .max
= 56 },
393 .p1
= { .min
= 2, .max
= 8 },
394 .p2
= { .dot_limit
= 225000,
395 .p2_slow
= 7, .p2_fast
= 7 },
398 /* LVDS 100mhz refclk limits. */
399 static const struct intel_limit intel_limits_ironlake_single_lvds_100m
= {
400 .dot
= { .min
= 25000, .max
= 350000 },
401 .vco
= { .min
= 1760000, .max
= 3510000 },
402 .n
= { .min
= 1, .max
= 2 },
403 .m
= { .min
= 79, .max
= 126 },
404 .m1
= { .min
= 12, .max
= 22 },
405 .m2
= { .min
= 5, .max
= 9 },
406 .p
= { .min
= 28, .max
= 112 },
407 .p1
= { .min
= 2, .max
= 8 },
408 .p2
= { .dot_limit
= 225000,
409 .p2_slow
= 14, .p2_fast
= 14 },
412 static const struct intel_limit intel_limits_ironlake_dual_lvds_100m
= {
413 .dot
= { .min
= 25000, .max
= 350000 },
414 .vco
= { .min
= 1760000, .max
= 3510000 },
415 .n
= { .min
= 1, .max
= 3 },
416 .m
= { .min
= 79, .max
= 126 },
417 .m1
= { .min
= 12, .max
= 22 },
418 .m2
= { .min
= 5, .max
= 9 },
419 .p
= { .min
= 14, .max
= 42 },
420 .p1
= { .min
= 2, .max
= 6 },
421 .p2
= { .dot_limit
= 225000,
422 .p2_slow
= 7, .p2_fast
= 7 },
425 static const struct intel_limit intel_limits_vlv
= {
427 * These are the data rate limits (measured in fast clocks)
428 * since those are the strictest limits we have. The fast
429 * clock and actual rate limits are more relaxed, so checking
430 * them would make no difference.
432 .dot
= { .min
= 25000 * 5, .max
= 270000 * 5 },
433 .vco
= { .min
= 4000000, .max
= 6000000 },
434 .n
= { .min
= 1, .max
= 7 },
435 .m1
= { .min
= 2, .max
= 3 },
436 .m2
= { .min
= 11, .max
= 156 },
437 .p1
= { .min
= 2, .max
= 3 },
438 .p2
= { .p2_slow
= 2, .p2_fast
= 20 }, /* slow=min, fast=max */
441 static const struct intel_limit intel_limits_chv
= {
443 * These are the data rate limits (measured in fast clocks)
444 * since those are the strictest limits we have. The fast
445 * clock and actual rate limits are more relaxed, so checking
446 * them would make no difference.
448 .dot
= { .min
= 25000 * 5, .max
= 540000 * 5},
449 .vco
= { .min
= 4800000, .max
= 6480000 },
450 .n
= { .min
= 1, .max
= 1 },
451 .m1
= { .min
= 2, .max
= 2 },
452 .m2
= { .min
= 24 << 22, .max
= 175 << 22 },
453 .p1
= { .min
= 2, .max
= 4 },
454 .p2
= { .p2_slow
= 1, .p2_fast
= 14 },
457 static const struct intel_limit intel_limits_bxt
= {
458 /* FIXME: find real dot limits */
459 .dot
= { .min
= 0, .max
= INT_MAX
},
460 .vco
= { .min
= 4800000, .max
= 6700000 },
461 .n
= { .min
= 1, .max
= 1 },
462 .m1
= { .min
= 2, .max
= 2 },
463 /* FIXME: find real m2 limits */
464 .m2
= { .min
= 2 << 22, .max
= 255 << 22 },
465 .p1
= { .min
= 2, .max
= 4 },
466 .p2
= { .p2_slow
= 1, .p2_fast
= 20 },
470 needs_modeset(struct drm_crtc_state
*state
)
472 return drm_atomic_crtc_needs_modeset(state
);
476 * Platform specific helpers to calculate the port PLL loopback- (clock.m),
477 * and post-divider (clock.p) values, pre- (clock.vco) and post-divided fast
478 * (clock.dot) clock rates. This fast dot clock is fed to the port's IO logic.
479 * The helpers' return value is the rate of the clock that is fed to the
480 * display engine's pipe which can be the above fast dot clock rate or a
481 * divided-down version of it.
483 /* m1 is reserved as 0 in Pineview, n is a ring counter */
484 static int pnv_calc_dpll_params(int refclk
, struct dpll
*clock
)
486 clock
->m
= clock
->m2
+ 2;
487 clock
->p
= clock
->p1
* clock
->p2
;
488 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
490 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
);
491 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
496 static uint32_t i9xx_dpll_compute_m(struct dpll
*dpll
)
498 return 5 * (dpll
->m1
+ 2) + (dpll
->m2
+ 2);
501 static int i9xx_calc_dpll_params(int refclk
, struct dpll
*clock
)
503 clock
->m
= i9xx_dpll_compute_m(clock
);
504 clock
->p
= clock
->p1
* clock
->p2
;
505 if (WARN_ON(clock
->n
+ 2 == 0 || clock
->p
== 0))
507 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
+ 2);
508 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
513 static int vlv_calc_dpll_params(int refclk
, struct dpll
*clock
)
515 clock
->m
= clock
->m1
* clock
->m2
;
516 clock
->p
= clock
->p1
* clock
->p2
;
517 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
519 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
);
520 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
522 return clock
->dot
/ 5;
525 int chv_calc_dpll_params(int refclk
, struct dpll
*clock
)
527 clock
->m
= clock
->m1
* clock
->m2
;
528 clock
->p
= clock
->p1
* clock
->p2
;
529 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
531 clock
->vco
= DIV_ROUND_CLOSEST_ULL((uint64_t)refclk
* clock
->m
,
533 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
535 return clock
->dot
/ 5;
538 #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
540 * Returns whether the given set of divisors are valid for a given refclk with
541 * the given connectors.
544 static bool intel_PLL_is_valid(struct drm_i915_private
*dev_priv
,
545 const struct intel_limit
*limit
,
546 const struct dpll
*clock
)
548 if (clock
->n
< limit
->n
.min
|| limit
->n
.max
< clock
->n
)
549 INTELPllInvalid("n out of range\n");
550 if (clock
->p1
< limit
->p1
.min
|| limit
->p1
.max
< clock
->p1
)
551 INTELPllInvalid("p1 out of range\n");
552 if (clock
->m2
< limit
->m2
.min
|| limit
->m2
.max
< clock
->m2
)
553 INTELPllInvalid("m2 out of range\n");
554 if (clock
->m1
< limit
->m1
.min
|| limit
->m1
.max
< clock
->m1
)
555 INTELPllInvalid("m1 out of range\n");
557 if (!IS_PINEVIEW(dev_priv
) && !IS_VALLEYVIEW(dev_priv
) &&
558 !IS_CHERRYVIEW(dev_priv
) && !IS_GEN9_LP(dev_priv
))
559 if (clock
->m1
<= clock
->m2
)
560 INTELPllInvalid("m1 <= m2\n");
562 if (!IS_VALLEYVIEW(dev_priv
) && !IS_CHERRYVIEW(dev_priv
) &&
563 !IS_GEN9_LP(dev_priv
)) {
564 if (clock
->p
< limit
->p
.min
|| limit
->p
.max
< clock
->p
)
565 INTELPllInvalid("p out of range\n");
566 if (clock
->m
< limit
->m
.min
|| limit
->m
.max
< clock
->m
)
567 INTELPllInvalid("m out of range\n");
570 if (clock
->vco
< limit
->vco
.min
|| limit
->vco
.max
< clock
->vco
)
571 INTELPllInvalid("vco out of range\n");
572 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
573 * connector, etc., rather than just a single range.
575 if (clock
->dot
< limit
->dot
.min
|| limit
->dot
.max
< clock
->dot
)
576 INTELPllInvalid("dot out of range\n");
582 i9xx_select_p2_div(const struct intel_limit
*limit
,
583 const struct intel_crtc_state
*crtc_state
,
586 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
588 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
590 * For LVDS just rely on its current settings for dual-channel.
591 * We haven't figured out how to reliably set up different
592 * single/dual channel state, if we even can.
594 if (intel_is_dual_link_lvds(dev
))
595 return limit
->p2
.p2_fast
;
597 return limit
->p2
.p2_slow
;
599 if (target
< limit
->p2
.dot_limit
)
600 return limit
->p2
.p2_slow
;
602 return limit
->p2
.p2_fast
;
607 * Returns a set of divisors for the desired target clock with the given
608 * refclk, or FALSE. The returned values represent the clock equation:
609 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
611 * Target and reference clocks are specified in kHz.
613 * If match_clock is provided, then best_clock P divider must match the P
614 * divider from @match_clock used for LVDS downclocking.
617 i9xx_find_best_dpll(const struct intel_limit
*limit
,
618 struct intel_crtc_state
*crtc_state
,
619 int target
, int refclk
, struct dpll
*match_clock
,
620 struct dpll
*best_clock
)
622 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
626 memset(best_clock
, 0, sizeof(*best_clock
));
628 clock
.p2
= i9xx_select_p2_div(limit
, crtc_state
, target
);
630 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
632 for (clock
.m2
= limit
->m2
.min
;
633 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
634 if (clock
.m2
>= clock
.m1
)
636 for (clock
.n
= limit
->n
.min
;
637 clock
.n
<= limit
->n
.max
; clock
.n
++) {
638 for (clock
.p1
= limit
->p1
.min
;
639 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
642 i9xx_calc_dpll_params(refclk
, &clock
);
643 if (!intel_PLL_is_valid(to_i915(dev
),
648 clock
.p
!= match_clock
->p
)
651 this_err
= abs(clock
.dot
- target
);
652 if (this_err
< err
) {
661 return (err
!= target
);
665 * Returns a set of divisors for the desired target clock with the given
666 * refclk, or FALSE. The returned values represent the clock equation:
667 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
669 * Target and reference clocks are specified in kHz.
671 * If match_clock is provided, then best_clock P divider must match the P
672 * divider from @match_clock used for LVDS downclocking.
675 pnv_find_best_dpll(const struct intel_limit
*limit
,
676 struct intel_crtc_state
*crtc_state
,
677 int target
, int refclk
, struct dpll
*match_clock
,
678 struct dpll
*best_clock
)
680 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
684 memset(best_clock
, 0, sizeof(*best_clock
));
686 clock
.p2
= i9xx_select_p2_div(limit
, crtc_state
, target
);
688 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
690 for (clock
.m2
= limit
->m2
.min
;
691 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
692 for (clock
.n
= limit
->n
.min
;
693 clock
.n
<= limit
->n
.max
; clock
.n
++) {
694 for (clock
.p1
= limit
->p1
.min
;
695 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
698 pnv_calc_dpll_params(refclk
, &clock
);
699 if (!intel_PLL_is_valid(to_i915(dev
),
704 clock
.p
!= match_clock
->p
)
707 this_err
= abs(clock
.dot
- target
);
708 if (this_err
< err
) {
717 return (err
!= target
);
721 * Returns a set of divisors for the desired target clock with the given
722 * refclk, or FALSE. The returned values represent the clock equation:
723 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
725 * Target and reference clocks are specified in kHz.
727 * If match_clock is provided, then best_clock P divider must match the P
728 * divider from @match_clock used for LVDS downclocking.
731 g4x_find_best_dpll(const struct intel_limit
*limit
,
732 struct intel_crtc_state
*crtc_state
,
733 int target
, int refclk
, struct dpll
*match_clock
,
734 struct dpll
*best_clock
)
736 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
740 /* approximately equals target * 0.00585 */
741 int err_most
= (target
>> 8) + (target
>> 9);
743 memset(best_clock
, 0, sizeof(*best_clock
));
745 clock
.p2
= i9xx_select_p2_div(limit
, crtc_state
, target
);
747 max_n
= limit
->n
.max
;
748 /* based on hardware requirement, prefer smaller n to precision */
749 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
750 /* based on hardware requirement, prefere larger m1,m2 */
751 for (clock
.m1
= limit
->m1
.max
;
752 clock
.m1
>= limit
->m1
.min
; clock
.m1
--) {
753 for (clock
.m2
= limit
->m2
.max
;
754 clock
.m2
>= limit
->m2
.min
; clock
.m2
--) {
755 for (clock
.p1
= limit
->p1
.max
;
756 clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
759 i9xx_calc_dpll_params(refclk
, &clock
);
760 if (!intel_PLL_is_valid(to_i915(dev
),
765 this_err
= abs(clock
.dot
- target
);
766 if (this_err
< err_most
) {
780 * Check if the calculated PLL configuration is more optimal compared to the
781 * best configuration and error found so far. Return the calculated error.
783 static bool vlv_PLL_is_optimal(struct drm_device
*dev
, int target_freq
,
784 const struct dpll
*calculated_clock
,
785 const struct dpll
*best_clock
,
786 unsigned int best_error_ppm
,
787 unsigned int *error_ppm
)
790 * For CHV ignore the error and consider only the P value.
791 * Prefer a bigger P value based on HW requirements.
793 if (IS_CHERRYVIEW(to_i915(dev
))) {
796 return calculated_clock
->p
> best_clock
->p
;
799 if (WARN_ON_ONCE(!target_freq
))
802 *error_ppm
= div_u64(1000000ULL *
803 abs(target_freq
- calculated_clock
->dot
),
806 * Prefer a better P value over a better (smaller) error if the error
807 * is small. Ensure this preference for future configurations too by
808 * setting the error to 0.
810 if (*error_ppm
< 100 && calculated_clock
->p
> best_clock
->p
) {
816 return *error_ppm
+ 10 < best_error_ppm
;
820 * Returns a set of divisors for the desired target clock with the given
821 * refclk, or FALSE. The returned values represent the clock equation:
822 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
825 vlv_find_best_dpll(const struct intel_limit
*limit
,
826 struct intel_crtc_state
*crtc_state
,
827 int target
, int refclk
, struct dpll
*match_clock
,
828 struct dpll
*best_clock
)
830 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
831 struct drm_device
*dev
= crtc
->base
.dev
;
833 unsigned int bestppm
= 1000000;
834 /* min update 19.2 MHz */
835 int max_n
= min(limit
->n
.max
, refclk
/ 19200);
838 target
*= 5; /* fast clock */
840 memset(best_clock
, 0, sizeof(*best_clock
));
842 /* based on hardware requirement, prefer smaller n to precision */
843 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
844 for (clock
.p1
= limit
->p1
.max
; clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
845 for (clock
.p2
= limit
->p2
.p2_fast
; clock
.p2
>= limit
->p2
.p2_slow
;
846 clock
.p2
-= clock
.p2
> 10 ? 2 : 1) {
847 clock
.p
= clock
.p1
* clock
.p2
;
848 /* based on hardware requirement, prefer bigger m1,m2 values */
849 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
; clock
.m1
++) {
852 clock
.m2
= DIV_ROUND_CLOSEST(target
* clock
.p
* clock
.n
,
855 vlv_calc_dpll_params(refclk
, &clock
);
857 if (!intel_PLL_is_valid(to_i915(dev
),
862 if (!vlv_PLL_is_optimal(dev
, target
,
880 * Returns a set of divisors for the desired target clock with the given
881 * refclk, or FALSE. The returned values represent the clock equation:
882 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
885 chv_find_best_dpll(const struct intel_limit
*limit
,
886 struct intel_crtc_state
*crtc_state
,
887 int target
, int refclk
, struct dpll
*match_clock
,
888 struct dpll
*best_clock
)
890 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
891 struct drm_device
*dev
= crtc
->base
.dev
;
892 unsigned int best_error_ppm
;
897 memset(best_clock
, 0, sizeof(*best_clock
));
898 best_error_ppm
= 1000000;
901 * Based on hardware doc, the n always set to 1, and m1 always
902 * set to 2. If requires to support 200Mhz refclk, we need to
903 * revisit this because n may not 1 anymore.
905 clock
.n
= 1, clock
.m1
= 2;
906 target
*= 5; /* fast clock */
908 for (clock
.p1
= limit
->p1
.max
; clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
909 for (clock
.p2
= limit
->p2
.p2_fast
;
910 clock
.p2
>= limit
->p2
.p2_slow
;
911 clock
.p2
-= clock
.p2
> 10 ? 2 : 1) {
912 unsigned int error_ppm
;
914 clock
.p
= clock
.p1
* clock
.p2
;
916 m2
= DIV_ROUND_CLOSEST_ULL(((uint64_t)target
* clock
.p
*
917 clock
.n
) << 22, refclk
* clock
.m1
);
919 if (m2
> INT_MAX
/clock
.m1
)
924 chv_calc_dpll_params(refclk
, &clock
);
926 if (!intel_PLL_is_valid(to_i915(dev
), limit
, &clock
))
929 if (!vlv_PLL_is_optimal(dev
, target
, &clock
, best_clock
,
930 best_error_ppm
, &error_ppm
))
934 best_error_ppm
= error_ppm
;
942 bool bxt_find_best_dpll(struct intel_crtc_state
*crtc_state
, int target_clock
,
943 struct dpll
*best_clock
)
946 const struct intel_limit
*limit
= &intel_limits_bxt
;
948 return chv_find_best_dpll(limit
, crtc_state
,
949 target_clock
, refclk
, NULL
, best_clock
);
952 bool intel_crtc_active(struct intel_crtc
*crtc
)
954 /* Be paranoid as we can arrive here with only partial
955 * state retrieved from the hardware during setup.
957 * We can ditch the adjusted_mode.crtc_clock check as soon
958 * as Haswell has gained clock readout/fastboot support.
960 * We can ditch the crtc->primary->fb check as soon as we can
961 * properly reconstruct framebuffers.
963 * FIXME: The intel_crtc->active here should be switched to
964 * crtc->state->active once we have proper CRTC states wired up
967 return crtc
->active
&& crtc
->base
.primary
->state
->fb
&&
968 crtc
->config
->base
.adjusted_mode
.crtc_clock
;
971 enum transcoder
intel_pipe_to_cpu_transcoder(struct drm_i915_private
*dev_priv
,
974 struct intel_crtc
*crtc
= intel_get_crtc_for_pipe(dev_priv
, pipe
);
976 return crtc
->config
->cpu_transcoder
;
979 static bool pipe_dsl_stopped(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
981 i915_reg_t reg
= PIPEDSL(pipe
);
985 if (IS_GEN2(dev_priv
))
986 line_mask
= DSL_LINEMASK_GEN2
;
988 line_mask
= DSL_LINEMASK_GEN3
;
990 line1
= I915_READ(reg
) & line_mask
;
992 line2
= I915_READ(reg
) & line_mask
;
994 return line1
== line2
;
998 * intel_wait_for_pipe_off - wait for pipe to turn off
999 * @crtc: crtc whose pipe to wait for
1001 * After disabling a pipe, we can't wait for vblank in the usual way,
1002 * spinning on the vblank interrupt status bit, since we won't actually
1003 * see an interrupt when the pipe is disabled.
1005 * On Gen4 and above:
1006 * wait for the pipe register state bit to turn off
1009 * wait for the display line value to settle (it usually
1010 * ends up stopping at the start of the next frame).
1013 static void intel_wait_for_pipe_off(struct intel_crtc
*crtc
)
1015 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1016 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
1017 enum pipe pipe
= crtc
->pipe
;
1019 if (INTEL_GEN(dev_priv
) >= 4) {
1020 i915_reg_t reg
= PIPECONF(cpu_transcoder
);
1022 /* Wait for the Pipe State to go off */
1023 if (intel_wait_for_register(dev_priv
,
1024 reg
, I965_PIPECONF_ACTIVE
, 0,
1026 WARN(1, "pipe_off wait timed out\n");
1028 /* Wait for the display line to settle */
1029 if (wait_for(pipe_dsl_stopped(dev_priv
, pipe
), 100))
1030 WARN(1, "pipe_off wait timed out\n");
1034 /* Only for pre-ILK configs */
1035 void assert_pll(struct drm_i915_private
*dev_priv
,
1036 enum pipe pipe
, bool state
)
1041 val
= I915_READ(DPLL(pipe
));
1042 cur_state
= !!(val
& DPLL_VCO_ENABLE
);
1043 I915_STATE_WARN(cur_state
!= state
,
1044 "PLL state assertion failure (expected %s, current %s)\n",
1045 onoff(state
), onoff(cur_state
));
1048 /* XXX: the dsi pll is shared between MIPI DSI ports */
1049 void assert_dsi_pll(struct drm_i915_private
*dev_priv
, bool state
)
1054 mutex_lock(&dev_priv
->sb_lock
);
1055 val
= vlv_cck_read(dev_priv
, CCK_REG_DSI_PLL_CONTROL
);
1056 mutex_unlock(&dev_priv
->sb_lock
);
1058 cur_state
= val
& DSI_PLL_VCO_EN
;
1059 I915_STATE_WARN(cur_state
!= state
,
1060 "DSI PLL state assertion failure (expected %s, current %s)\n",
1061 onoff(state
), onoff(cur_state
));
1064 static void assert_fdi_tx(struct drm_i915_private
*dev_priv
,
1065 enum pipe pipe
, bool state
)
1068 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1071 if (HAS_DDI(dev_priv
)) {
1072 /* DDI does not have a specific FDI_TX register */
1073 u32 val
= I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder
));
1074 cur_state
= !!(val
& TRANS_DDI_FUNC_ENABLE
);
1076 u32 val
= I915_READ(FDI_TX_CTL(pipe
));
1077 cur_state
= !!(val
& FDI_TX_ENABLE
);
1079 I915_STATE_WARN(cur_state
!= state
,
1080 "FDI TX state assertion failure (expected %s, current %s)\n",
1081 onoff(state
), onoff(cur_state
));
1083 #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
1084 #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
1086 static void assert_fdi_rx(struct drm_i915_private
*dev_priv
,
1087 enum pipe pipe
, bool state
)
1092 val
= I915_READ(FDI_RX_CTL(pipe
));
1093 cur_state
= !!(val
& FDI_RX_ENABLE
);
1094 I915_STATE_WARN(cur_state
!= state
,
1095 "FDI RX state assertion failure (expected %s, current %s)\n",
1096 onoff(state
), onoff(cur_state
));
1098 #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
1099 #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
1101 static void assert_fdi_tx_pll_enabled(struct drm_i915_private
*dev_priv
,
1106 /* ILK FDI PLL is always enabled */
1107 if (IS_GEN5(dev_priv
))
1110 /* On Haswell, DDI ports are responsible for the FDI PLL setup */
1111 if (HAS_DDI(dev_priv
))
1114 val
= I915_READ(FDI_TX_CTL(pipe
));
1115 I915_STATE_WARN(!(val
& FDI_TX_PLL_ENABLE
), "FDI TX PLL assertion failure, should be active but is disabled\n");
1118 void assert_fdi_rx_pll(struct drm_i915_private
*dev_priv
,
1119 enum pipe pipe
, bool state
)
1124 val
= I915_READ(FDI_RX_CTL(pipe
));
1125 cur_state
= !!(val
& FDI_RX_PLL_ENABLE
);
1126 I915_STATE_WARN(cur_state
!= state
,
1127 "FDI RX PLL assertion failure (expected %s, current %s)\n",
1128 onoff(state
), onoff(cur_state
));
1131 void assert_panel_unlocked(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1135 enum pipe panel_pipe
= PIPE_A
;
1138 if (WARN_ON(HAS_DDI(dev_priv
)))
1141 if (HAS_PCH_SPLIT(dev_priv
)) {
1144 pp_reg
= PP_CONTROL(0);
1145 port_sel
= I915_READ(PP_ON_DELAYS(0)) & PANEL_PORT_SELECT_MASK
;
1147 if (port_sel
== PANEL_PORT_SELECT_LVDS
&&
1148 I915_READ(PCH_LVDS
) & LVDS_PIPEB_SELECT
)
1149 panel_pipe
= PIPE_B
;
1150 /* XXX: else fix for eDP */
1151 } else if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) {
1152 /* presumably write lock depends on pipe, not port select */
1153 pp_reg
= PP_CONTROL(pipe
);
1156 pp_reg
= PP_CONTROL(0);
1157 if (I915_READ(LVDS
) & LVDS_PIPEB_SELECT
)
1158 panel_pipe
= PIPE_B
;
1161 val
= I915_READ(pp_reg
);
1162 if (!(val
& PANEL_POWER_ON
) ||
1163 ((val
& PANEL_UNLOCK_MASK
) == PANEL_UNLOCK_REGS
))
1166 I915_STATE_WARN(panel_pipe
== pipe
&& locked
,
1167 "panel assertion failure, pipe %c regs locked\n",
1171 static void assert_cursor(struct drm_i915_private
*dev_priv
,
1172 enum pipe pipe
, bool state
)
1176 if (IS_I845G(dev_priv
) || IS_I865G(dev_priv
))
1177 cur_state
= I915_READ(CURCNTR(PIPE_A
)) & CURSOR_ENABLE
;
1179 cur_state
= I915_READ(CURCNTR(pipe
)) & CURSOR_MODE
;
1181 I915_STATE_WARN(cur_state
!= state
,
1182 "cursor on pipe %c assertion failure (expected %s, current %s)\n",
1183 pipe_name(pipe
), onoff(state
), onoff(cur_state
));
1185 #define assert_cursor_enabled(d, p) assert_cursor(d, p, true)
1186 #define assert_cursor_disabled(d, p) assert_cursor(d, p, false)
1188 void assert_pipe(struct drm_i915_private
*dev_priv
,
1189 enum pipe pipe
, bool state
)
1192 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1194 enum intel_display_power_domain power_domain
;
1196 /* we keep both pipes enabled on 830 */
1197 if (IS_I830(dev_priv
))
1200 power_domain
= POWER_DOMAIN_TRANSCODER(cpu_transcoder
);
1201 if (intel_display_power_get_if_enabled(dev_priv
, power_domain
)) {
1202 u32 val
= I915_READ(PIPECONF(cpu_transcoder
));
1203 cur_state
= !!(val
& PIPECONF_ENABLE
);
1205 intel_display_power_put(dev_priv
, power_domain
);
1210 I915_STATE_WARN(cur_state
!= state
,
1211 "pipe %c assertion failure (expected %s, current %s)\n",
1212 pipe_name(pipe
), onoff(state
), onoff(cur_state
));
1215 static void assert_plane(struct drm_i915_private
*dev_priv
,
1216 enum plane plane
, bool state
)
1221 val
= I915_READ(DSPCNTR(plane
));
1222 cur_state
= !!(val
& DISPLAY_PLANE_ENABLE
);
1223 I915_STATE_WARN(cur_state
!= state
,
1224 "plane %c assertion failure (expected %s, current %s)\n",
1225 plane_name(plane
), onoff(state
), onoff(cur_state
));
1228 #define assert_plane_enabled(d, p) assert_plane(d, p, true)
1229 #define assert_plane_disabled(d, p) assert_plane(d, p, false)
1231 static void assert_planes_disabled(struct drm_i915_private
*dev_priv
,
1236 /* Primary planes are fixed to pipes on gen4+ */
1237 if (INTEL_GEN(dev_priv
) >= 4) {
1238 u32 val
= I915_READ(DSPCNTR(pipe
));
1239 I915_STATE_WARN(val
& DISPLAY_PLANE_ENABLE
,
1240 "plane %c assertion failure, should be disabled but not\n",
1245 /* Need to check both planes against the pipe */
1246 for_each_pipe(dev_priv
, i
) {
1247 u32 val
= I915_READ(DSPCNTR(i
));
1248 enum pipe cur_pipe
= (val
& DISPPLANE_SEL_PIPE_MASK
) >>
1249 DISPPLANE_SEL_PIPE_SHIFT
;
1250 I915_STATE_WARN((val
& DISPLAY_PLANE_ENABLE
) && pipe
== cur_pipe
,
1251 "plane %c assertion failure, should be off on pipe %c but is still active\n",
1252 plane_name(i
), pipe_name(pipe
));
1256 static void assert_sprites_disabled(struct drm_i915_private
*dev_priv
,
1261 if (INTEL_GEN(dev_priv
) >= 9) {
1262 for_each_sprite(dev_priv
, pipe
, sprite
) {
1263 u32 val
= I915_READ(PLANE_CTL(pipe
, sprite
));
1264 I915_STATE_WARN(val
& PLANE_CTL_ENABLE
,
1265 "plane %d assertion failure, should be off on pipe %c but is still active\n",
1266 sprite
, pipe_name(pipe
));
1268 } else if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) {
1269 for_each_sprite(dev_priv
, pipe
, sprite
) {
1270 u32 val
= I915_READ(SPCNTR(pipe
, PLANE_SPRITE0
+ sprite
));
1271 I915_STATE_WARN(val
& SP_ENABLE
,
1272 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1273 sprite_name(pipe
, sprite
), pipe_name(pipe
));
1275 } else if (INTEL_GEN(dev_priv
) >= 7) {
1276 u32 val
= I915_READ(SPRCTL(pipe
));
1277 I915_STATE_WARN(val
& SPRITE_ENABLE
,
1278 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1279 plane_name(pipe
), pipe_name(pipe
));
1280 } else if (INTEL_GEN(dev_priv
) >= 5 || IS_G4X(dev_priv
)) {
1281 u32 val
= I915_READ(DVSCNTR(pipe
));
1282 I915_STATE_WARN(val
& DVS_ENABLE
,
1283 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1284 plane_name(pipe
), pipe_name(pipe
));
1288 static void assert_vblank_disabled(struct drm_crtc
*crtc
)
1290 if (I915_STATE_WARN_ON(drm_crtc_vblank_get(crtc
) == 0))
1291 drm_crtc_vblank_put(crtc
);
1294 void assert_pch_transcoder_disabled(struct drm_i915_private
*dev_priv
,
1300 val
= I915_READ(PCH_TRANSCONF(pipe
));
1301 enabled
= !!(val
& TRANS_ENABLE
);
1302 I915_STATE_WARN(enabled
,
1303 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1307 static bool dp_pipe_enabled(struct drm_i915_private
*dev_priv
,
1308 enum pipe pipe
, u32 port_sel
, u32 val
)
1310 if ((val
& DP_PORT_EN
) == 0)
1313 if (HAS_PCH_CPT(dev_priv
)) {
1314 u32 trans_dp_ctl
= I915_READ(TRANS_DP_CTL(pipe
));
1315 if ((trans_dp_ctl
& TRANS_DP_PORT_SEL_MASK
) != port_sel
)
1317 } else if (IS_CHERRYVIEW(dev_priv
)) {
1318 if ((val
& DP_PIPE_MASK_CHV
) != DP_PIPE_SELECT_CHV(pipe
))
1321 if ((val
& DP_PIPE_MASK
) != (pipe
<< 30))
1327 static bool hdmi_pipe_enabled(struct drm_i915_private
*dev_priv
,
1328 enum pipe pipe
, u32 val
)
1330 if ((val
& SDVO_ENABLE
) == 0)
1333 if (HAS_PCH_CPT(dev_priv
)) {
1334 if ((val
& SDVO_PIPE_SEL_MASK_CPT
) != SDVO_PIPE_SEL_CPT(pipe
))
1336 } else if (IS_CHERRYVIEW(dev_priv
)) {
1337 if ((val
& SDVO_PIPE_SEL_MASK_CHV
) != SDVO_PIPE_SEL_CHV(pipe
))
1340 if ((val
& SDVO_PIPE_SEL_MASK
) != SDVO_PIPE_SEL(pipe
))
1346 static bool lvds_pipe_enabled(struct drm_i915_private
*dev_priv
,
1347 enum pipe pipe
, u32 val
)
1349 if ((val
& LVDS_PORT_EN
) == 0)
1352 if (HAS_PCH_CPT(dev_priv
)) {
1353 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1356 if ((val
& LVDS_PIPE_MASK
) != LVDS_PIPE(pipe
))
1362 static bool adpa_pipe_enabled(struct drm_i915_private
*dev_priv
,
1363 enum pipe pipe
, u32 val
)
1365 if ((val
& ADPA_DAC_ENABLE
) == 0)
1367 if (HAS_PCH_CPT(dev_priv
)) {
1368 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1371 if ((val
& ADPA_PIPE_SELECT_MASK
) != ADPA_PIPE_SELECT(pipe
))
1377 static void assert_pch_dp_disabled(struct drm_i915_private
*dev_priv
,
1378 enum pipe pipe
, i915_reg_t reg
,
1381 u32 val
= I915_READ(reg
);
1382 I915_STATE_WARN(dp_pipe_enabled(dev_priv
, pipe
, port_sel
, val
),
1383 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
1384 i915_mmio_reg_offset(reg
), pipe_name(pipe
));
1386 I915_STATE_WARN(HAS_PCH_IBX(dev_priv
) && (val
& DP_PORT_EN
) == 0
1387 && (val
& DP_PIPEB_SELECT
),
1388 "IBX PCH dp port still using transcoder B\n");
1391 static void assert_pch_hdmi_disabled(struct drm_i915_private
*dev_priv
,
1392 enum pipe pipe
, i915_reg_t reg
)
1394 u32 val
= I915_READ(reg
);
1395 I915_STATE_WARN(hdmi_pipe_enabled(dev_priv
, pipe
, val
),
1396 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
1397 i915_mmio_reg_offset(reg
), pipe_name(pipe
));
1399 I915_STATE_WARN(HAS_PCH_IBX(dev_priv
) && (val
& SDVO_ENABLE
) == 0
1400 && (val
& SDVO_PIPE_B_SELECT
),
1401 "IBX PCH hdmi port still using transcoder B\n");
1404 static void assert_pch_ports_disabled(struct drm_i915_private
*dev_priv
,
1409 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_B
, TRANS_DP_PORT_SEL_B
);
1410 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_C
, TRANS_DP_PORT_SEL_C
);
1411 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_D
, TRANS_DP_PORT_SEL_D
);
1413 val
= I915_READ(PCH_ADPA
);
1414 I915_STATE_WARN(adpa_pipe_enabled(dev_priv
, pipe
, val
),
1415 "PCH VGA enabled on transcoder %c, should be disabled\n",
1418 val
= I915_READ(PCH_LVDS
);
1419 I915_STATE_WARN(lvds_pipe_enabled(dev_priv
, pipe
, val
),
1420 "PCH LVDS enabled on transcoder %c, should be disabled\n",
1423 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIB
);
1424 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIC
);
1425 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMID
);
1428 static void _vlv_enable_pll(struct intel_crtc
*crtc
,
1429 const struct intel_crtc_state
*pipe_config
)
1431 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1432 enum pipe pipe
= crtc
->pipe
;
1434 I915_WRITE(DPLL(pipe
), pipe_config
->dpll_hw_state
.dpll
);
1435 POSTING_READ(DPLL(pipe
));
1438 if (intel_wait_for_register(dev_priv
,
1443 DRM_ERROR("DPLL %d failed to lock\n", pipe
);
1446 static void vlv_enable_pll(struct intel_crtc
*crtc
,
1447 const struct intel_crtc_state
*pipe_config
)
1449 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1450 enum pipe pipe
= crtc
->pipe
;
1452 assert_pipe_disabled(dev_priv
, pipe
);
1454 /* PLL is protected by panel, make sure we can write it */
1455 assert_panel_unlocked(dev_priv
, pipe
);
1457 if (pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
)
1458 _vlv_enable_pll(crtc
, pipe_config
);
1460 I915_WRITE(DPLL_MD(pipe
), pipe_config
->dpll_hw_state
.dpll_md
);
1461 POSTING_READ(DPLL_MD(pipe
));
1465 static void _chv_enable_pll(struct intel_crtc
*crtc
,
1466 const struct intel_crtc_state
*pipe_config
)
1468 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1469 enum pipe pipe
= crtc
->pipe
;
1470 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
1473 mutex_lock(&dev_priv
->sb_lock
);
1475 /* Enable back the 10bit clock to display controller */
1476 tmp
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
));
1477 tmp
|= DPIO_DCLKP_EN
;
1478 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
), tmp
);
1480 mutex_unlock(&dev_priv
->sb_lock
);
1483 * Need to wait > 100ns between dclkp clock enable bit and PLL enable.
1488 I915_WRITE(DPLL(pipe
), pipe_config
->dpll_hw_state
.dpll
);
1490 /* Check PLL is locked */
1491 if (intel_wait_for_register(dev_priv
,
1492 DPLL(pipe
), DPLL_LOCK_VLV
, DPLL_LOCK_VLV
,
1494 DRM_ERROR("PLL %d failed to lock\n", pipe
);
1497 static void chv_enable_pll(struct intel_crtc
*crtc
,
1498 const struct intel_crtc_state
*pipe_config
)
1500 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1501 enum pipe pipe
= crtc
->pipe
;
1503 assert_pipe_disabled(dev_priv
, pipe
);
1505 /* PLL is protected by panel, make sure we can write it */
1506 assert_panel_unlocked(dev_priv
, pipe
);
1508 if (pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
)
1509 _chv_enable_pll(crtc
, pipe_config
);
1511 if (pipe
!= PIPE_A
) {
1513 * WaPixelRepeatModeFixForC0:chv
1515 * DPLLCMD is AWOL. Use chicken bits to propagate
1516 * the value from DPLLBMD to either pipe B or C.
1518 I915_WRITE(CBR4_VLV
, pipe
== PIPE_B
? CBR_DPLLBMD_PIPE_B
: CBR_DPLLBMD_PIPE_C
);
1519 I915_WRITE(DPLL_MD(PIPE_B
), pipe_config
->dpll_hw_state
.dpll_md
);
1520 I915_WRITE(CBR4_VLV
, 0);
1521 dev_priv
->chv_dpll_md
[pipe
] = pipe_config
->dpll_hw_state
.dpll_md
;
1524 * DPLLB VGA mode also seems to cause problems.
1525 * We should always have it disabled.
1527 WARN_ON((I915_READ(DPLL(PIPE_B
)) & DPLL_VGA_MODE_DIS
) == 0);
1529 I915_WRITE(DPLL_MD(pipe
), pipe_config
->dpll_hw_state
.dpll_md
);
1530 POSTING_READ(DPLL_MD(pipe
));
1534 static int intel_num_dvo_pipes(struct drm_i915_private
*dev_priv
)
1536 struct intel_crtc
*crtc
;
1539 for_each_intel_crtc(&dev_priv
->drm
, crtc
) {
1540 count
+= crtc
->base
.state
->active
&&
1541 intel_crtc_has_type(crtc
->config
, INTEL_OUTPUT_DVO
);
1547 static void i9xx_enable_pll(struct intel_crtc
*crtc
)
1549 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1550 i915_reg_t reg
= DPLL(crtc
->pipe
);
1551 u32 dpll
= crtc
->config
->dpll_hw_state
.dpll
;
1554 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1556 /* PLL is protected by panel, make sure we can write it */
1557 if (IS_MOBILE(dev_priv
) && !IS_I830(dev_priv
))
1558 assert_panel_unlocked(dev_priv
, crtc
->pipe
);
1560 /* Enable DVO 2x clock on both PLLs if necessary */
1561 if (IS_I830(dev_priv
) && intel_num_dvo_pipes(dev_priv
) > 0) {
1563 * It appears to be important that we don't enable this
1564 * for the current pipe before otherwise configuring the
1565 * PLL. No idea how this should be handled if multiple
1566 * DVO outputs are enabled simultaneosly.
1568 dpll
|= DPLL_DVO_2X_MODE
;
1569 I915_WRITE(DPLL(!crtc
->pipe
),
1570 I915_READ(DPLL(!crtc
->pipe
)) | DPLL_DVO_2X_MODE
);
1574 * Apparently we need to have VGA mode enabled prior to changing
1575 * the P1/P2 dividers. Otherwise the DPLL will keep using the old
1576 * dividers, even though the register value does change.
1580 I915_WRITE(reg
, dpll
);
1582 /* Wait for the clocks to stabilize. */
1586 if (INTEL_GEN(dev_priv
) >= 4) {
1587 I915_WRITE(DPLL_MD(crtc
->pipe
),
1588 crtc
->config
->dpll_hw_state
.dpll_md
);
1590 /* The pixel multiplier can only be updated once the
1591 * DPLL is enabled and the clocks are stable.
1593 * So write it again.
1595 I915_WRITE(reg
, dpll
);
1598 /* We do this three times for luck */
1599 for (i
= 0; i
< 3; i
++) {
1600 I915_WRITE(reg
, dpll
);
1602 udelay(150); /* wait for warmup */
1607 * i9xx_disable_pll - disable a PLL
1608 * @dev_priv: i915 private structure
1609 * @pipe: pipe PLL to disable
1611 * Disable the PLL for @pipe, making sure the pipe is off first.
1613 * Note! This is for pre-ILK only.
1615 static void i9xx_disable_pll(struct intel_crtc
*crtc
)
1617 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1618 enum pipe pipe
= crtc
->pipe
;
1620 /* Disable DVO 2x clock on both PLLs if necessary */
1621 if (IS_I830(dev_priv
) &&
1622 intel_crtc_has_type(crtc
->config
, INTEL_OUTPUT_DVO
) &&
1623 !intel_num_dvo_pipes(dev_priv
)) {
1624 I915_WRITE(DPLL(PIPE_B
),
1625 I915_READ(DPLL(PIPE_B
)) & ~DPLL_DVO_2X_MODE
);
1626 I915_WRITE(DPLL(PIPE_A
),
1627 I915_READ(DPLL(PIPE_A
)) & ~DPLL_DVO_2X_MODE
);
1630 /* Don't disable pipe or pipe PLLs if needed */
1631 if (IS_I830(dev_priv
))
1634 /* Make sure the pipe isn't still relying on us */
1635 assert_pipe_disabled(dev_priv
, pipe
);
1637 I915_WRITE(DPLL(pipe
), DPLL_VGA_MODE_DIS
);
1638 POSTING_READ(DPLL(pipe
));
1641 static void vlv_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1645 /* Make sure the pipe isn't still relying on us */
1646 assert_pipe_disabled(dev_priv
, pipe
);
1648 val
= DPLL_INTEGRATED_REF_CLK_VLV
|
1649 DPLL_REF_CLK_ENABLE_VLV
| DPLL_VGA_MODE_DIS
;
1651 val
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
1653 I915_WRITE(DPLL(pipe
), val
);
1654 POSTING_READ(DPLL(pipe
));
1657 static void chv_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1659 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
1662 /* Make sure the pipe isn't still relying on us */
1663 assert_pipe_disabled(dev_priv
, pipe
);
1665 val
= DPLL_SSC_REF_CLK_CHV
|
1666 DPLL_REF_CLK_ENABLE_VLV
| DPLL_VGA_MODE_DIS
;
1668 val
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
1670 I915_WRITE(DPLL(pipe
), val
);
1671 POSTING_READ(DPLL(pipe
));
1673 mutex_lock(&dev_priv
->sb_lock
);
1675 /* Disable 10bit clock to display controller */
1676 val
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
));
1677 val
&= ~DPIO_DCLKP_EN
;
1678 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
), val
);
1680 mutex_unlock(&dev_priv
->sb_lock
);
1683 void vlv_wait_port_ready(struct drm_i915_private
*dev_priv
,
1684 struct intel_digital_port
*dport
,
1685 unsigned int expected_mask
)
1688 i915_reg_t dpll_reg
;
1690 switch (dport
->port
) {
1692 port_mask
= DPLL_PORTB_READY_MASK
;
1696 port_mask
= DPLL_PORTC_READY_MASK
;
1698 expected_mask
<<= 4;
1701 port_mask
= DPLL_PORTD_READY_MASK
;
1702 dpll_reg
= DPIO_PHY_STATUS
;
1708 if (intel_wait_for_register(dev_priv
,
1709 dpll_reg
, port_mask
, expected_mask
,
1711 WARN(1, "timed out waiting for port %c ready: got 0x%x, expected 0x%x\n",
1712 port_name(dport
->port
), I915_READ(dpll_reg
) & port_mask
, expected_mask
);
1715 static void ironlake_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1718 struct intel_crtc
*intel_crtc
= intel_get_crtc_for_pipe(dev_priv
,
1721 uint32_t val
, pipeconf_val
;
1723 /* Make sure PCH DPLL is enabled */
1724 assert_shared_dpll_enabled(dev_priv
, intel_crtc
->config
->shared_dpll
);
1726 /* FDI must be feeding us bits for PCH ports */
1727 assert_fdi_tx_enabled(dev_priv
, pipe
);
1728 assert_fdi_rx_enabled(dev_priv
, pipe
);
1730 if (HAS_PCH_CPT(dev_priv
)) {
1731 /* Workaround: Set the timing override bit before enabling the
1732 * pch transcoder. */
1733 reg
= TRANS_CHICKEN2(pipe
);
1734 val
= I915_READ(reg
);
1735 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
1736 I915_WRITE(reg
, val
);
1739 reg
= PCH_TRANSCONF(pipe
);
1740 val
= I915_READ(reg
);
1741 pipeconf_val
= I915_READ(PIPECONF(pipe
));
1743 if (HAS_PCH_IBX(dev_priv
)) {
1745 * Make the BPC in transcoder be consistent with
1746 * that in pipeconf reg. For HDMI we must use 8bpc
1747 * here for both 8bpc and 12bpc.
1749 val
&= ~PIPECONF_BPC_MASK
;
1750 if (intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_HDMI
))
1751 val
|= PIPECONF_8BPC
;
1753 val
|= pipeconf_val
& PIPECONF_BPC_MASK
;
1756 val
&= ~TRANS_INTERLACE_MASK
;
1757 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK
) == PIPECONF_INTERLACED_ILK
)
1758 if (HAS_PCH_IBX(dev_priv
) &&
1759 intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_SDVO
))
1760 val
|= TRANS_LEGACY_INTERLACED_ILK
;
1762 val
|= TRANS_INTERLACED
;
1764 val
|= TRANS_PROGRESSIVE
;
1766 I915_WRITE(reg
, val
| TRANS_ENABLE
);
1767 if (intel_wait_for_register(dev_priv
,
1768 reg
, TRANS_STATE_ENABLE
, TRANS_STATE_ENABLE
,
1770 DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe
));
1773 static void lpt_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1774 enum transcoder cpu_transcoder
)
1776 u32 val
, pipeconf_val
;
1778 /* FDI must be feeding us bits for PCH ports */
1779 assert_fdi_tx_enabled(dev_priv
, (enum pipe
) cpu_transcoder
);
1780 assert_fdi_rx_enabled(dev_priv
, TRANSCODER_A
);
1782 /* Workaround: set timing override bit. */
1783 val
= I915_READ(TRANS_CHICKEN2(PIPE_A
));
1784 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
1785 I915_WRITE(TRANS_CHICKEN2(PIPE_A
), val
);
1788 pipeconf_val
= I915_READ(PIPECONF(cpu_transcoder
));
1790 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK_HSW
) ==
1791 PIPECONF_INTERLACED_ILK
)
1792 val
|= TRANS_INTERLACED
;
1794 val
|= TRANS_PROGRESSIVE
;
1796 I915_WRITE(LPT_TRANSCONF
, val
);
1797 if (intel_wait_for_register(dev_priv
,
1802 DRM_ERROR("Failed to enable PCH transcoder\n");
1805 static void ironlake_disable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1811 /* FDI relies on the transcoder */
1812 assert_fdi_tx_disabled(dev_priv
, pipe
);
1813 assert_fdi_rx_disabled(dev_priv
, pipe
);
1815 /* Ports must be off as well */
1816 assert_pch_ports_disabled(dev_priv
, pipe
);
1818 reg
= PCH_TRANSCONF(pipe
);
1819 val
= I915_READ(reg
);
1820 val
&= ~TRANS_ENABLE
;
1821 I915_WRITE(reg
, val
);
1822 /* wait for PCH transcoder off, transcoder state */
1823 if (intel_wait_for_register(dev_priv
,
1824 reg
, TRANS_STATE_ENABLE
, 0,
1826 DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe
));
1828 if (HAS_PCH_CPT(dev_priv
)) {
1829 /* Workaround: Clear the timing override chicken bit again. */
1830 reg
= TRANS_CHICKEN2(pipe
);
1831 val
= I915_READ(reg
);
1832 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
1833 I915_WRITE(reg
, val
);
1837 void lpt_disable_pch_transcoder(struct drm_i915_private
*dev_priv
)
1841 val
= I915_READ(LPT_TRANSCONF
);
1842 val
&= ~TRANS_ENABLE
;
1843 I915_WRITE(LPT_TRANSCONF
, val
);
1844 /* wait for PCH transcoder off, transcoder state */
1845 if (intel_wait_for_register(dev_priv
,
1846 LPT_TRANSCONF
, TRANS_STATE_ENABLE
, 0,
1848 DRM_ERROR("Failed to disable PCH transcoder\n");
1850 /* Workaround: clear timing override bit. */
1851 val
= I915_READ(TRANS_CHICKEN2(PIPE_A
));
1852 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
1853 I915_WRITE(TRANS_CHICKEN2(PIPE_A
), val
);
1856 enum transcoder
intel_crtc_pch_transcoder(struct intel_crtc
*crtc
)
1858 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1860 WARN_ON(!crtc
->config
->has_pch_encoder
);
1862 if (HAS_PCH_LPT(dev_priv
))
1863 return TRANSCODER_A
;
1865 return (enum transcoder
) crtc
->pipe
;
1869 * intel_enable_pipe - enable a pipe, asserting requirements
1870 * @crtc: crtc responsible for the pipe
1872 * Enable @crtc's pipe, making sure that various hardware specific requirements
1873 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
1875 static void intel_enable_pipe(struct intel_crtc
*crtc
)
1877 struct drm_device
*dev
= crtc
->base
.dev
;
1878 struct drm_i915_private
*dev_priv
= to_i915(dev
);
1879 enum pipe pipe
= crtc
->pipe
;
1880 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
1884 DRM_DEBUG_KMS("enabling pipe %c\n", pipe_name(pipe
));
1886 assert_planes_disabled(dev_priv
, pipe
);
1887 assert_cursor_disabled(dev_priv
, pipe
);
1888 assert_sprites_disabled(dev_priv
, pipe
);
1891 * A pipe without a PLL won't actually be able to drive bits from
1892 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
1895 if (HAS_GMCH_DISPLAY(dev_priv
)) {
1896 if (intel_crtc_has_type(crtc
->config
, INTEL_OUTPUT_DSI
))
1897 assert_dsi_pll_enabled(dev_priv
);
1899 assert_pll_enabled(dev_priv
, pipe
);
1901 if (crtc
->config
->has_pch_encoder
) {
1902 /* if driving the PCH, we need FDI enabled */
1903 assert_fdi_rx_pll_enabled(dev_priv
,
1904 (enum pipe
) intel_crtc_pch_transcoder(crtc
));
1905 assert_fdi_tx_pll_enabled(dev_priv
,
1906 (enum pipe
) cpu_transcoder
);
1908 /* FIXME: assert CPU port conditions for SNB+ */
1911 reg
= PIPECONF(cpu_transcoder
);
1912 val
= I915_READ(reg
);
1913 if (val
& PIPECONF_ENABLE
) {
1914 /* we keep both pipes enabled on 830 */
1915 WARN_ON(!IS_I830(dev_priv
));
1919 I915_WRITE(reg
, val
| PIPECONF_ENABLE
);
1923 * Until the pipe starts DSL will read as 0, which would cause
1924 * an apparent vblank timestamp jump, which messes up also the
1925 * frame count when it's derived from the timestamps. So let's
1926 * wait for the pipe to start properly before we call
1927 * drm_crtc_vblank_on()
1929 if (dev
->max_vblank_count
== 0 &&
1930 wait_for(intel_get_crtc_scanline(crtc
) != crtc
->scanline_offset
, 50))
1931 DRM_ERROR("pipe %c didn't start\n", pipe_name(pipe
));
1935 * intel_disable_pipe - disable a pipe, asserting requirements
1936 * @crtc: crtc whose pipes is to be disabled
1938 * Disable the pipe of @crtc, making sure that various hardware
1939 * specific requirements are met, if applicable, e.g. plane
1940 * disabled, panel fitter off, etc.
1942 * Will wait until the pipe has shut down before returning.
1944 static void intel_disable_pipe(struct intel_crtc
*crtc
)
1946 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
1947 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
1948 enum pipe pipe
= crtc
->pipe
;
1952 DRM_DEBUG_KMS("disabling pipe %c\n", pipe_name(pipe
));
1955 * Make sure planes won't keep trying to pump pixels to us,
1956 * or we might hang the display.
1958 assert_planes_disabled(dev_priv
, pipe
);
1959 assert_cursor_disabled(dev_priv
, pipe
);
1960 assert_sprites_disabled(dev_priv
, pipe
);
1962 reg
= PIPECONF(cpu_transcoder
);
1963 val
= I915_READ(reg
);
1964 if ((val
& PIPECONF_ENABLE
) == 0)
1968 * Double wide has implications for planes
1969 * so best keep it disabled when not needed.
1971 if (crtc
->config
->double_wide
)
1972 val
&= ~PIPECONF_DOUBLE_WIDE
;
1974 /* Don't disable pipe or pipe PLLs if needed */
1975 if (!IS_I830(dev_priv
))
1976 val
&= ~PIPECONF_ENABLE
;
1978 I915_WRITE(reg
, val
);
1979 if ((val
& PIPECONF_ENABLE
) == 0)
1980 intel_wait_for_pipe_off(crtc
);
1983 static unsigned int intel_tile_size(const struct drm_i915_private
*dev_priv
)
1985 return IS_GEN2(dev_priv
) ? 2048 : 4096;
1989 intel_tile_width_bytes(const struct drm_framebuffer
*fb
, int plane
)
1991 struct drm_i915_private
*dev_priv
= to_i915(fb
->dev
);
1992 unsigned int cpp
= fb
->format
->cpp
[plane
];
1994 switch (fb
->modifier
) {
1995 case DRM_FORMAT_MOD_LINEAR
:
1997 case I915_FORMAT_MOD_X_TILED
:
1998 if (IS_GEN2(dev_priv
))
2002 case I915_FORMAT_MOD_Y_TILED
:
2003 if (IS_GEN2(dev_priv
) || HAS_128_BYTE_Y_TILING(dev_priv
))
2007 case I915_FORMAT_MOD_Yf_TILED
:
2023 MISSING_CASE(fb
->modifier
);
2029 intel_tile_height(const struct drm_framebuffer
*fb
, int plane
)
2031 if (fb
->modifier
== DRM_FORMAT_MOD_LINEAR
)
2034 return intel_tile_size(to_i915(fb
->dev
)) /
2035 intel_tile_width_bytes(fb
, plane
);
2038 /* Return the tile dimensions in pixel units */
2039 static void intel_tile_dims(const struct drm_framebuffer
*fb
, int plane
,
2040 unsigned int *tile_width
,
2041 unsigned int *tile_height
)
2043 unsigned int tile_width_bytes
= intel_tile_width_bytes(fb
, plane
);
2044 unsigned int cpp
= fb
->format
->cpp
[plane
];
2046 *tile_width
= tile_width_bytes
/ cpp
;
2047 *tile_height
= intel_tile_size(to_i915(fb
->dev
)) / tile_width_bytes
;
2051 intel_fb_align_height(const struct drm_framebuffer
*fb
,
2052 int plane
, unsigned int height
)
2054 unsigned int tile_height
= intel_tile_height(fb
, plane
);
2056 return ALIGN(height
, tile_height
);
2059 unsigned int intel_rotation_info_size(const struct intel_rotation_info
*rot_info
)
2061 unsigned int size
= 0;
2064 for (i
= 0 ; i
< ARRAY_SIZE(rot_info
->plane
); i
++)
2065 size
+= rot_info
->plane
[i
].width
* rot_info
->plane
[i
].height
;
2071 intel_fill_fb_ggtt_view(struct i915_ggtt_view
*view
,
2072 const struct drm_framebuffer
*fb
,
2073 unsigned int rotation
)
2075 view
->type
= I915_GGTT_VIEW_NORMAL
;
2076 if (drm_rotation_90_or_270(rotation
)) {
2077 view
->type
= I915_GGTT_VIEW_ROTATED
;
2078 view
->rotated
= to_intel_framebuffer(fb
)->rot_info
;
2082 static unsigned int intel_cursor_alignment(const struct drm_i915_private
*dev_priv
)
2084 if (IS_I830(dev_priv
))
2086 else if (IS_I85X(dev_priv
))
2088 else if (IS_I845G(dev_priv
) || IS_I865G(dev_priv
))
2094 static unsigned int intel_linear_alignment(const struct drm_i915_private
*dev_priv
)
2096 if (INTEL_INFO(dev_priv
)->gen
>= 9)
2098 else if (IS_I965G(dev_priv
) || IS_I965GM(dev_priv
) ||
2099 IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
2101 else if (INTEL_INFO(dev_priv
)->gen
>= 4)
2107 static unsigned int intel_surf_alignment(const struct drm_framebuffer
*fb
,
2110 struct drm_i915_private
*dev_priv
= to_i915(fb
->dev
);
2112 /* AUX_DIST needs only 4K alignment */
2113 if (fb
->format
->format
== DRM_FORMAT_NV12
&& plane
== 1)
2116 switch (fb
->modifier
) {
2117 case DRM_FORMAT_MOD_LINEAR
:
2118 return intel_linear_alignment(dev_priv
);
2119 case I915_FORMAT_MOD_X_TILED
:
2120 if (INTEL_GEN(dev_priv
) >= 9)
2123 case I915_FORMAT_MOD_Y_TILED
:
2124 case I915_FORMAT_MOD_Yf_TILED
:
2125 return 1 * 1024 * 1024;
2127 MISSING_CASE(fb
->modifier
);
2133 intel_pin_and_fence_fb_obj(struct drm_framebuffer
*fb
, unsigned int rotation
)
2135 struct drm_device
*dev
= fb
->dev
;
2136 struct drm_i915_private
*dev_priv
= to_i915(dev
);
2137 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
2138 struct i915_ggtt_view view
;
2139 struct i915_vma
*vma
;
2142 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
2144 alignment
= intel_surf_alignment(fb
, 0);
2146 intel_fill_fb_ggtt_view(&view
, fb
, rotation
);
2148 /* Note that the w/a also requires 64 PTE of padding following the
2149 * bo. We currently fill all unused PTE with the shadow page and so
2150 * we should always have valid PTE following the scanout preventing
2153 if (intel_scanout_needs_vtd_wa(dev_priv
) && alignment
< 256 * 1024)
2154 alignment
= 256 * 1024;
2157 * Global gtt pte registers are special registers which actually forward
2158 * writes to a chunk of system memory. Which means that there is no risk
2159 * that the register values disappear as soon as we call
2160 * intel_runtime_pm_put(), so it is correct to wrap only the
2161 * pin/unpin/fence and not more.
2163 intel_runtime_pm_get(dev_priv
);
2165 vma
= i915_gem_object_pin_to_display_plane(obj
, alignment
, &view
);
2169 if (i915_vma_is_map_and_fenceable(vma
)) {
2170 /* Install a fence for tiled scan-out. Pre-i965 always needs a
2171 * fence, whereas 965+ only requires a fence if using
2172 * framebuffer compression. For simplicity, we always, when
2173 * possible, install a fence as the cost is not that onerous.
2175 * If we fail to fence the tiled scanout, then either the
2176 * modeset will reject the change (which is highly unlikely as
2177 * the affected systems, all but one, do not have unmappable
2178 * space) or we will not be able to enable full powersaving
2179 * techniques (also likely not to apply due to various limits
2180 * FBC and the like impose on the size of the buffer, which
2181 * presumably we violated anyway with this unmappable buffer).
2182 * Anyway, it is presumably better to stumble onwards with
2183 * something and try to run the system in a "less than optimal"
2184 * mode that matches the user configuration.
2186 if (i915_vma_get_fence(vma
) == 0)
2187 i915_vma_pin_fence(vma
);
2192 intel_runtime_pm_put(dev_priv
);
2196 void intel_unpin_fb_vma(struct i915_vma
*vma
)
2198 lockdep_assert_held(&vma
->vm
->i915
->drm
.struct_mutex
);
2200 i915_vma_unpin_fence(vma
);
2201 i915_gem_object_unpin_from_display_plane(vma
);
2205 static int intel_fb_pitch(const struct drm_framebuffer
*fb
, int plane
,
2206 unsigned int rotation
)
2208 if (drm_rotation_90_or_270(rotation
))
2209 return to_intel_framebuffer(fb
)->rotated
[plane
].pitch
;
2211 return fb
->pitches
[plane
];
2215 * Convert the x/y offsets into a linear offset.
2216 * Only valid with 0/180 degree rotation, which is fine since linear
2217 * offset is only used with linear buffers on pre-hsw and tiled buffers
2218 * with gen2/3, and 90/270 degree rotations isn't supported on any of them.
2220 u32
intel_fb_xy_to_linear(int x
, int y
,
2221 const struct intel_plane_state
*state
,
2224 const struct drm_framebuffer
*fb
= state
->base
.fb
;
2225 unsigned int cpp
= fb
->format
->cpp
[plane
];
2226 unsigned int pitch
= fb
->pitches
[plane
];
2228 return y
* pitch
+ x
* cpp
;
2232 * Add the x/y offsets derived from fb->offsets[] to the user
2233 * specified plane src x/y offsets. The resulting x/y offsets
2234 * specify the start of scanout from the beginning of the gtt mapping.
2236 void intel_add_fb_offsets(int *x
, int *y
,
2237 const struct intel_plane_state
*state
,
2241 const struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(state
->base
.fb
);
2242 unsigned int rotation
= state
->base
.rotation
;
2244 if (drm_rotation_90_or_270(rotation
)) {
2245 *x
+= intel_fb
->rotated
[plane
].x
;
2246 *y
+= intel_fb
->rotated
[plane
].y
;
2248 *x
+= intel_fb
->normal
[plane
].x
;
2249 *y
+= intel_fb
->normal
[plane
].y
;
2254 * Input tile dimensions and pitch must already be
2255 * rotated to match x and y, and in pixel units.
2257 static u32
_intel_adjust_tile_offset(int *x
, int *y
,
2258 unsigned int tile_width
,
2259 unsigned int tile_height
,
2260 unsigned int tile_size
,
2261 unsigned int pitch_tiles
,
2265 unsigned int pitch_pixels
= pitch_tiles
* tile_width
;
2268 WARN_ON(old_offset
& (tile_size
- 1));
2269 WARN_ON(new_offset
& (tile_size
- 1));
2270 WARN_ON(new_offset
> old_offset
);
2272 tiles
= (old_offset
- new_offset
) / tile_size
;
2274 *y
+= tiles
/ pitch_tiles
* tile_height
;
2275 *x
+= tiles
% pitch_tiles
* tile_width
;
2277 /* minimize x in case it got needlessly big */
2278 *y
+= *x
/ pitch_pixels
* tile_height
;
2285 * Adjust the tile offset by moving the difference into
2288 static u32
intel_adjust_tile_offset(int *x
, int *y
,
2289 const struct intel_plane_state
*state
, int plane
,
2290 u32 old_offset
, u32 new_offset
)
2292 const struct drm_i915_private
*dev_priv
= to_i915(state
->base
.plane
->dev
);
2293 const struct drm_framebuffer
*fb
= state
->base
.fb
;
2294 unsigned int cpp
= fb
->format
->cpp
[plane
];
2295 unsigned int rotation
= state
->base
.rotation
;
2296 unsigned int pitch
= intel_fb_pitch(fb
, plane
, rotation
);
2298 WARN_ON(new_offset
> old_offset
);
2300 if (fb
->modifier
!= DRM_FORMAT_MOD_LINEAR
) {
2301 unsigned int tile_size
, tile_width
, tile_height
;
2302 unsigned int pitch_tiles
;
2304 tile_size
= intel_tile_size(dev_priv
);
2305 intel_tile_dims(fb
, plane
, &tile_width
, &tile_height
);
2307 if (drm_rotation_90_or_270(rotation
)) {
2308 pitch_tiles
= pitch
/ tile_height
;
2309 swap(tile_width
, tile_height
);
2311 pitch_tiles
= pitch
/ (tile_width
* cpp
);
2314 _intel_adjust_tile_offset(x
, y
, tile_width
, tile_height
,
2315 tile_size
, pitch_tiles
,
2316 old_offset
, new_offset
);
2318 old_offset
+= *y
* pitch
+ *x
* cpp
;
2320 *y
= (old_offset
- new_offset
) / pitch
;
2321 *x
= ((old_offset
- new_offset
) - *y
* pitch
) / cpp
;
2328 * Computes the linear offset to the base tile and adjusts
2329 * x, y. bytes per pixel is assumed to be a power-of-two.
2331 * In the 90/270 rotated case, x and y are assumed
2332 * to be already rotated to match the rotated GTT view, and
2333 * pitch is the tile_height aligned framebuffer height.
2335 * This function is used when computing the derived information
2336 * under intel_framebuffer, so using any of that information
2337 * here is not allowed. Anything under drm_framebuffer can be
2338 * used. This is why the user has to pass in the pitch since it
2339 * is specified in the rotated orientation.
2341 static u32
_intel_compute_tile_offset(const struct drm_i915_private
*dev_priv
,
2343 const struct drm_framebuffer
*fb
, int plane
,
2345 unsigned int rotation
,
2348 uint64_t fb_modifier
= fb
->modifier
;
2349 unsigned int cpp
= fb
->format
->cpp
[plane
];
2350 u32 offset
, offset_aligned
;
2355 if (fb_modifier
!= DRM_FORMAT_MOD_LINEAR
) {
2356 unsigned int tile_size
, tile_width
, tile_height
;
2357 unsigned int tile_rows
, tiles
, pitch_tiles
;
2359 tile_size
= intel_tile_size(dev_priv
);
2360 intel_tile_dims(fb
, plane
, &tile_width
, &tile_height
);
2362 if (drm_rotation_90_or_270(rotation
)) {
2363 pitch_tiles
= pitch
/ tile_height
;
2364 swap(tile_width
, tile_height
);
2366 pitch_tiles
= pitch
/ (tile_width
* cpp
);
2369 tile_rows
= *y
/ tile_height
;
2372 tiles
= *x
/ tile_width
;
2375 offset
= (tile_rows
* pitch_tiles
+ tiles
) * tile_size
;
2376 offset_aligned
= offset
& ~alignment
;
2378 _intel_adjust_tile_offset(x
, y
, tile_width
, tile_height
,
2379 tile_size
, pitch_tiles
,
2380 offset
, offset_aligned
);
2382 offset
= *y
* pitch
+ *x
* cpp
;
2383 offset_aligned
= offset
& ~alignment
;
2385 *y
= (offset
& alignment
) / pitch
;
2386 *x
= ((offset
& alignment
) - *y
* pitch
) / cpp
;
2389 return offset_aligned
;
2392 u32
intel_compute_tile_offset(int *x
, int *y
,
2393 const struct intel_plane_state
*state
,
2396 struct intel_plane
*intel_plane
= to_intel_plane(state
->base
.plane
);
2397 struct drm_i915_private
*dev_priv
= to_i915(intel_plane
->base
.dev
);
2398 const struct drm_framebuffer
*fb
= state
->base
.fb
;
2399 unsigned int rotation
= state
->base
.rotation
;
2400 int pitch
= intel_fb_pitch(fb
, plane
, rotation
);
2403 if (intel_plane
->id
== PLANE_CURSOR
)
2404 alignment
= intel_cursor_alignment(dev_priv
);
2406 alignment
= intel_surf_alignment(fb
, plane
);
2408 return _intel_compute_tile_offset(dev_priv
, x
, y
, fb
, plane
, pitch
,
2409 rotation
, alignment
);
2412 /* Convert the fb->offset[] linear offset into x/y offsets */
2413 static void intel_fb_offset_to_xy(int *x
, int *y
,
2414 const struct drm_framebuffer
*fb
, int plane
)
2416 unsigned int cpp
= fb
->format
->cpp
[plane
];
2417 unsigned int pitch
= fb
->pitches
[plane
];
2418 u32 linear_offset
= fb
->offsets
[plane
];
2420 *y
= linear_offset
/ pitch
;
2421 *x
= linear_offset
% pitch
/ cpp
;
2424 static unsigned int intel_fb_modifier_to_tiling(uint64_t fb_modifier
)
2426 switch (fb_modifier
) {
2427 case I915_FORMAT_MOD_X_TILED
:
2428 return I915_TILING_X
;
2429 case I915_FORMAT_MOD_Y_TILED
:
2430 return I915_TILING_Y
;
2432 return I915_TILING_NONE
;
2437 intel_fill_fb_info(struct drm_i915_private
*dev_priv
,
2438 struct drm_framebuffer
*fb
)
2440 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
2441 struct intel_rotation_info
*rot_info
= &intel_fb
->rot_info
;
2442 u32 gtt_offset_rotated
= 0;
2443 unsigned int max_size
= 0;
2444 int i
, num_planes
= fb
->format
->num_planes
;
2445 unsigned int tile_size
= intel_tile_size(dev_priv
);
2447 for (i
= 0; i
< num_planes
; i
++) {
2448 unsigned int width
, height
;
2449 unsigned int cpp
, size
;
2453 cpp
= fb
->format
->cpp
[i
];
2454 width
= drm_framebuffer_plane_width(fb
->width
, fb
, i
);
2455 height
= drm_framebuffer_plane_height(fb
->height
, fb
, i
);
2457 intel_fb_offset_to_xy(&x
, &y
, fb
, i
);
2460 * The fence (if used) is aligned to the start of the object
2461 * so having the framebuffer wrap around across the edge of the
2462 * fenced region doesn't really work. We have no API to configure
2463 * the fence start offset within the object (nor could we probably
2464 * on gen2/3). So it's just easier if we just require that the
2465 * fb layout agrees with the fence layout. We already check that the
2466 * fb stride matches the fence stride elsewhere.
2468 if (i915_gem_object_is_tiled(intel_fb
->obj
) &&
2469 (x
+ width
) * cpp
> fb
->pitches
[i
]) {
2470 DRM_DEBUG_KMS("bad fb plane %d offset: 0x%x\n",
2476 * First pixel of the framebuffer from
2477 * the start of the normal gtt mapping.
2479 intel_fb
->normal
[i
].x
= x
;
2480 intel_fb
->normal
[i
].y
= y
;
2482 offset
= _intel_compute_tile_offset(dev_priv
, &x
, &y
,
2483 fb
, i
, fb
->pitches
[i
],
2484 DRM_MODE_ROTATE_0
, tile_size
);
2485 offset
/= tile_size
;
2487 if (fb
->modifier
!= DRM_FORMAT_MOD_LINEAR
) {
2488 unsigned int tile_width
, tile_height
;
2489 unsigned int pitch_tiles
;
2492 intel_tile_dims(fb
, i
, &tile_width
, &tile_height
);
2494 rot_info
->plane
[i
].offset
= offset
;
2495 rot_info
->plane
[i
].stride
= DIV_ROUND_UP(fb
->pitches
[i
], tile_width
* cpp
);
2496 rot_info
->plane
[i
].width
= DIV_ROUND_UP(x
+ width
, tile_width
);
2497 rot_info
->plane
[i
].height
= DIV_ROUND_UP(y
+ height
, tile_height
);
2499 intel_fb
->rotated
[i
].pitch
=
2500 rot_info
->plane
[i
].height
* tile_height
;
2502 /* how many tiles does this plane need */
2503 size
= rot_info
->plane
[i
].stride
* rot_info
->plane
[i
].height
;
2505 * If the plane isn't horizontally tile aligned,
2506 * we need one more tile.
2511 /* rotate the x/y offsets to match the GTT view */
2517 rot_info
->plane
[i
].width
* tile_width
,
2518 rot_info
->plane
[i
].height
* tile_height
,
2519 DRM_MODE_ROTATE_270
);
2523 /* rotate the tile dimensions to match the GTT view */
2524 pitch_tiles
= intel_fb
->rotated
[i
].pitch
/ tile_height
;
2525 swap(tile_width
, tile_height
);
2528 * We only keep the x/y offsets, so push all of the
2529 * gtt offset into the x/y offsets.
2531 _intel_adjust_tile_offset(&x
, &y
,
2532 tile_width
, tile_height
,
2533 tile_size
, pitch_tiles
,
2534 gtt_offset_rotated
* tile_size
, 0);
2536 gtt_offset_rotated
+= rot_info
->plane
[i
].width
* rot_info
->plane
[i
].height
;
2539 * First pixel of the framebuffer from
2540 * the start of the rotated gtt mapping.
2542 intel_fb
->rotated
[i
].x
= x
;
2543 intel_fb
->rotated
[i
].y
= y
;
2545 size
= DIV_ROUND_UP((y
+ height
) * fb
->pitches
[i
] +
2546 x
* cpp
, tile_size
);
2549 /* how many tiles in total needed in the bo */
2550 max_size
= max(max_size
, offset
+ size
);
2553 if (max_size
* tile_size
> intel_fb
->obj
->base
.size
) {
2554 DRM_DEBUG_KMS("fb too big for bo (need %u bytes, have %zu bytes)\n",
2555 max_size
* tile_size
, intel_fb
->obj
->base
.size
);
2562 static int i9xx_format_to_fourcc(int format
)
2565 case DISPPLANE_8BPP
:
2566 return DRM_FORMAT_C8
;
2567 case DISPPLANE_BGRX555
:
2568 return DRM_FORMAT_XRGB1555
;
2569 case DISPPLANE_BGRX565
:
2570 return DRM_FORMAT_RGB565
;
2572 case DISPPLANE_BGRX888
:
2573 return DRM_FORMAT_XRGB8888
;
2574 case DISPPLANE_RGBX888
:
2575 return DRM_FORMAT_XBGR8888
;
2576 case DISPPLANE_BGRX101010
:
2577 return DRM_FORMAT_XRGB2101010
;
2578 case DISPPLANE_RGBX101010
:
2579 return DRM_FORMAT_XBGR2101010
;
2583 static int skl_format_to_fourcc(int format
, bool rgb_order
, bool alpha
)
2586 case PLANE_CTL_FORMAT_RGB_565
:
2587 return DRM_FORMAT_RGB565
;
2589 case PLANE_CTL_FORMAT_XRGB_8888
:
2592 return DRM_FORMAT_ABGR8888
;
2594 return DRM_FORMAT_XBGR8888
;
2597 return DRM_FORMAT_ARGB8888
;
2599 return DRM_FORMAT_XRGB8888
;
2601 case PLANE_CTL_FORMAT_XRGB_2101010
:
2603 return DRM_FORMAT_XBGR2101010
;
2605 return DRM_FORMAT_XRGB2101010
;
2610 intel_alloc_initial_plane_obj(struct intel_crtc
*crtc
,
2611 struct intel_initial_plane_config
*plane_config
)
2613 struct drm_device
*dev
= crtc
->base
.dev
;
2614 struct drm_i915_private
*dev_priv
= to_i915(dev
);
2615 struct i915_ggtt
*ggtt
= &dev_priv
->ggtt
;
2616 struct drm_i915_gem_object
*obj
= NULL
;
2617 struct drm_mode_fb_cmd2 mode_cmd
= { 0 };
2618 struct drm_framebuffer
*fb
= &plane_config
->fb
->base
;
2619 u32 base_aligned
= round_down(plane_config
->base
, PAGE_SIZE
);
2620 u32 size_aligned
= round_up(plane_config
->base
+ plane_config
->size
,
2623 size_aligned
-= base_aligned
;
2625 if (plane_config
->size
== 0)
2628 /* If the FB is too big, just don't use it since fbdev is not very
2629 * important and we should probably use that space with FBC or other
2631 if (size_aligned
* 2 > ggtt
->stolen_usable_size
)
2634 mutex_lock(&dev
->struct_mutex
);
2635 obj
= i915_gem_object_create_stolen_for_preallocated(dev_priv
,
2639 mutex_unlock(&dev
->struct_mutex
);
2643 if (plane_config
->tiling
== I915_TILING_X
)
2644 obj
->tiling_and_stride
= fb
->pitches
[0] | I915_TILING_X
;
2646 mode_cmd
.pixel_format
= fb
->format
->format
;
2647 mode_cmd
.width
= fb
->width
;
2648 mode_cmd
.height
= fb
->height
;
2649 mode_cmd
.pitches
[0] = fb
->pitches
[0];
2650 mode_cmd
.modifier
[0] = fb
->modifier
;
2651 mode_cmd
.flags
= DRM_MODE_FB_MODIFIERS
;
2653 if (intel_framebuffer_init(to_intel_framebuffer(fb
), obj
, &mode_cmd
)) {
2654 DRM_DEBUG_KMS("intel fb init failed\n");
2659 DRM_DEBUG_KMS("initial plane fb obj %p\n", obj
);
2663 i915_gem_object_put(obj
);
2667 /* Update plane->state->fb to match plane->fb after driver-internal updates */
2669 update_state_fb(struct drm_plane
*plane
)
2671 if (plane
->fb
== plane
->state
->fb
)
2674 if (plane
->state
->fb
)
2675 drm_framebuffer_unreference(plane
->state
->fb
);
2676 plane
->state
->fb
= plane
->fb
;
2677 if (plane
->state
->fb
)
2678 drm_framebuffer_reference(plane
->state
->fb
);
2682 intel_set_plane_visible(struct intel_crtc_state
*crtc_state
,
2683 struct intel_plane_state
*plane_state
,
2686 struct intel_plane
*plane
= to_intel_plane(plane_state
->base
.plane
);
2688 plane_state
->base
.visible
= visible
;
2690 /* FIXME pre-g4x don't work like this */
2692 crtc_state
->base
.plane_mask
|= BIT(drm_plane_index(&plane
->base
));
2693 crtc_state
->active_planes
|= BIT(plane
->id
);
2695 crtc_state
->base
.plane_mask
&= ~BIT(drm_plane_index(&plane
->base
));
2696 crtc_state
->active_planes
&= ~BIT(plane
->id
);
2699 DRM_DEBUG_KMS("%s active planes 0x%x\n",
2700 crtc_state
->base
.crtc
->name
,
2701 crtc_state
->active_planes
);
2705 intel_find_initial_plane_obj(struct intel_crtc
*intel_crtc
,
2706 struct intel_initial_plane_config
*plane_config
)
2708 struct drm_device
*dev
= intel_crtc
->base
.dev
;
2709 struct drm_i915_private
*dev_priv
= to_i915(dev
);
2711 struct drm_i915_gem_object
*obj
;
2712 struct drm_plane
*primary
= intel_crtc
->base
.primary
;
2713 struct drm_plane_state
*plane_state
= primary
->state
;
2714 struct drm_crtc_state
*crtc_state
= intel_crtc
->base
.state
;
2715 struct intel_plane
*intel_plane
= to_intel_plane(primary
);
2716 struct intel_plane_state
*intel_state
=
2717 to_intel_plane_state(plane_state
);
2718 struct drm_framebuffer
*fb
;
2720 if (!plane_config
->fb
)
2723 if (intel_alloc_initial_plane_obj(intel_crtc
, plane_config
)) {
2724 fb
= &plane_config
->fb
->base
;
2728 kfree(plane_config
->fb
);
2731 * Failed to alloc the obj, check to see if we should share
2732 * an fb with another CRTC instead
2734 for_each_crtc(dev
, c
) {
2735 struct intel_plane_state
*state
;
2737 if (c
== &intel_crtc
->base
)
2740 if (!to_intel_crtc(c
)->active
)
2743 state
= to_intel_plane_state(c
->primary
->state
);
2747 if (intel_plane_ggtt_offset(state
) == plane_config
->base
) {
2748 fb
= c
->primary
->fb
;
2749 drm_framebuffer_reference(fb
);
2755 * We've failed to reconstruct the BIOS FB. Current display state
2756 * indicates that the primary plane is visible, but has a NULL FB,
2757 * which will lead to problems later if we don't fix it up. The
2758 * simplest solution is to just disable the primary plane now and
2759 * pretend the BIOS never had it enabled.
2761 intel_set_plane_visible(to_intel_crtc_state(crtc_state
),
2762 to_intel_plane_state(plane_state
),
2764 intel_pre_disable_primary_noatomic(&intel_crtc
->base
);
2765 trace_intel_disable_plane(primary
, intel_crtc
);
2766 intel_plane
->disable_plane(intel_plane
, intel_crtc
);
2771 mutex_lock(&dev
->struct_mutex
);
2773 intel_pin_and_fence_fb_obj(fb
, primary
->state
->rotation
);
2774 mutex_unlock(&dev
->struct_mutex
);
2775 if (IS_ERR(intel_state
->vma
)) {
2776 DRM_ERROR("failed to pin boot fb on pipe %d: %li\n",
2777 intel_crtc
->pipe
, PTR_ERR(intel_state
->vma
));
2779 intel_state
->vma
= NULL
;
2780 drm_framebuffer_unreference(fb
);
2784 plane_state
->src_x
= 0;
2785 plane_state
->src_y
= 0;
2786 plane_state
->src_w
= fb
->width
<< 16;
2787 plane_state
->src_h
= fb
->height
<< 16;
2789 plane_state
->crtc_x
= 0;
2790 plane_state
->crtc_y
= 0;
2791 plane_state
->crtc_w
= fb
->width
;
2792 plane_state
->crtc_h
= fb
->height
;
2794 intel_state
->base
.src
= drm_plane_state_src(plane_state
);
2795 intel_state
->base
.dst
= drm_plane_state_dest(plane_state
);
2797 obj
= intel_fb_obj(fb
);
2798 if (i915_gem_object_is_tiled(obj
))
2799 dev_priv
->preserve_bios_swizzle
= true;
2801 drm_framebuffer_reference(fb
);
2802 primary
->fb
= primary
->state
->fb
= fb
;
2803 primary
->crtc
= primary
->state
->crtc
= &intel_crtc
->base
;
2805 intel_set_plane_visible(to_intel_crtc_state(crtc_state
),
2806 to_intel_plane_state(plane_state
),
2809 atomic_or(to_intel_plane(primary
)->frontbuffer_bit
,
2810 &obj
->frontbuffer_bits
);
2813 static int skl_max_plane_width(const struct drm_framebuffer
*fb
, int plane
,
2814 unsigned int rotation
)
2816 int cpp
= fb
->format
->cpp
[plane
];
2818 switch (fb
->modifier
) {
2819 case DRM_FORMAT_MOD_LINEAR
:
2820 case I915_FORMAT_MOD_X_TILED
:
2833 case I915_FORMAT_MOD_Y_TILED
:
2834 case I915_FORMAT_MOD_Yf_TILED
:
2849 MISSING_CASE(fb
->modifier
);
2855 static int skl_check_main_surface(struct intel_plane_state
*plane_state
)
2857 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
2858 unsigned int rotation
= plane_state
->base
.rotation
;
2859 int x
= plane_state
->base
.src
.x1
>> 16;
2860 int y
= plane_state
->base
.src
.y1
>> 16;
2861 int w
= drm_rect_width(&plane_state
->base
.src
) >> 16;
2862 int h
= drm_rect_height(&plane_state
->base
.src
) >> 16;
2863 int max_width
= skl_max_plane_width(fb
, 0, rotation
);
2864 int max_height
= 4096;
2865 u32 alignment
, offset
, aux_offset
= plane_state
->aux
.offset
;
2867 if (w
> max_width
|| h
> max_height
) {
2868 DRM_DEBUG_KMS("requested Y/RGB source size %dx%d too big (limit %dx%d)\n",
2869 w
, h
, max_width
, max_height
);
2873 intel_add_fb_offsets(&x
, &y
, plane_state
, 0);
2874 offset
= intel_compute_tile_offset(&x
, &y
, plane_state
, 0);
2875 alignment
= intel_surf_alignment(fb
, 0);
2878 * AUX surface offset is specified as the distance from the
2879 * main surface offset, and it must be non-negative. Make
2880 * sure that is what we will get.
2882 if (offset
> aux_offset
)
2883 offset
= intel_adjust_tile_offset(&x
, &y
, plane_state
, 0,
2884 offset
, aux_offset
& ~(alignment
- 1));
2887 * When using an X-tiled surface, the plane blows up
2888 * if the x offset + width exceed the stride.
2890 * TODO: linear and Y-tiled seem fine, Yf untested,
2892 if (fb
->modifier
== I915_FORMAT_MOD_X_TILED
) {
2893 int cpp
= fb
->format
->cpp
[0];
2895 while ((x
+ w
) * cpp
> fb
->pitches
[0]) {
2897 DRM_DEBUG_KMS("Unable to find suitable display surface offset\n");
2901 offset
= intel_adjust_tile_offset(&x
, &y
, plane_state
, 0,
2902 offset
, offset
- alignment
);
2906 plane_state
->main
.offset
= offset
;
2907 plane_state
->main
.x
= x
;
2908 plane_state
->main
.y
= y
;
2913 static int skl_check_nv12_aux_surface(struct intel_plane_state
*plane_state
)
2915 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
2916 unsigned int rotation
= plane_state
->base
.rotation
;
2917 int max_width
= skl_max_plane_width(fb
, 1, rotation
);
2918 int max_height
= 4096;
2919 int x
= plane_state
->base
.src
.x1
>> 17;
2920 int y
= plane_state
->base
.src
.y1
>> 17;
2921 int w
= drm_rect_width(&plane_state
->base
.src
) >> 17;
2922 int h
= drm_rect_height(&plane_state
->base
.src
) >> 17;
2925 intel_add_fb_offsets(&x
, &y
, plane_state
, 1);
2926 offset
= intel_compute_tile_offset(&x
, &y
, plane_state
, 1);
2928 /* FIXME not quite sure how/if these apply to the chroma plane */
2929 if (w
> max_width
|| h
> max_height
) {
2930 DRM_DEBUG_KMS("CbCr source size %dx%d too big (limit %dx%d)\n",
2931 w
, h
, max_width
, max_height
);
2935 plane_state
->aux
.offset
= offset
;
2936 plane_state
->aux
.x
= x
;
2937 plane_state
->aux
.y
= y
;
2942 int skl_check_plane_surface(struct intel_plane_state
*plane_state
)
2944 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
2945 unsigned int rotation
= plane_state
->base
.rotation
;
2948 if (!plane_state
->base
.visible
)
2951 /* Rotate src coordinates to match rotated GTT view */
2952 if (drm_rotation_90_or_270(rotation
))
2953 drm_rect_rotate(&plane_state
->base
.src
,
2954 fb
->width
<< 16, fb
->height
<< 16,
2955 DRM_MODE_ROTATE_270
);
2958 * Handle the AUX surface first since
2959 * the main surface setup depends on it.
2961 if (fb
->format
->format
== DRM_FORMAT_NV12
) {
2962 ret
= skl_check_nv12_aux_surface(plane_state
);
2966 plane_state
->aux
.offset
= ~0xfff;
2967 plane_state
->aux
.x
= 0;
2968 plane_state
->aux
.y
= 0;
2971 ret
= skl_check_main_surface(plane_state
);
2978 static u32
i9xx_plane_ctl(const struct intel_crtc_state
*crtc_state
,
2979 const struct intel_plane_state
*plane_state
)
2981 struct drm_i915_private
*dev_priv
=
2982 to_i915(plane_state
->base
.plane
->dev
);
2983 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
2984 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
2985 unsigned int rotation
= plane_state
->base
.rotation
;
2988 dspcntr
= DISPLAY_PLANE_ENABLE
| DISPPLANE_GAMMA_ENABLE
;
2990 if (IS_G4X(dev_priv
) || IS_GEN5(dev_priv
) ||
2991 IS_GEN6(dev_priv
) || IS_IVYBRIDGE(dev_priv
))
2992 dspcntr
|= DISPPLANE_TRICKLE_FEED_DISABLE
;
2994 if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
))
2995 dspcntr
|= DISPPLANE_PIPE_CSC_ENABLE
;
2997 if (INTEL_GEN(dev_priv
) < 4)
2998 dspcntr
|= DISPPLANE_SEL_PIPE(crtc
->pipe
);
3000 switch (fb
->format
->format
) {
3002 dspcntr
|= DISPPLANE_8BPP
;
3004 case DRM_FORMAT_XRGB1555
:
3005 dspcntr
|= DISPPLANE_BGRX555
;
3007 case DRM_FORMAT_RGB565
:
3008 dspcntr
|= DISPPLANE_BGRX565
;
3010 case DRM_FORMAT_XRGB8888
:
3011 dspcntr
|= DISPPLANE_BGRX888
;
3013 case DRM_FORMAT_XBGR8888
:
3014 dspcntr
|= DISPPLANE_RGBX888
;
3016 case DRM_FORMAT_XRGB2101010
:
3017 dspcntr
|= DISPPLANE_BGRX101010
;
3019 case DRM_FORMAT_XBGR2101010
:
3020 dspcntr
|= DISPPLANE_RGBX101010
;
3023 MISSING_CASE(fb
->format
->format
);
3027 if (INTEL_GEN(dev_priv
) >= 4 &&
3028 fb
->modifier
== I915_FORMAT_MOD_X_TILED
)
3029 dspcntr
|= DISPPLANE_TILED
;
3031 if (rotation
& DRM_MODE_ROTATE_180
)
3032 dspcntr
|= DISPPLANE_ROTATE_180
;
3034 if (rotation
& DRM_MODE_REFLECT_X
)
3035 dspcntr
|= DISPPLANE_MIRROR
;
3040 int i9xx_check_plane_surface(struct intel_plane_state
*plane_state
)
3042 struct drm_i915_private
*dev_priv
=
3043 to_i915(plane_state
->base
.plane
->dev
);
3044 int src_x
= plane_state
->base
.src
.x1
>> 16;
3045 int src_y
= plane_state
->base
.src
.y1
>> 16;
3048 intel_add_fb_offsets(&src_x
, &src_y
, plane_state
, 0);
3050 if (INTEL_GEN(dev_priv
) >= 4)
3051 offset
= intel_compute_tile_offset(&src_x
, &src_y
,
3056 /* HSW/BDW do this automagically in hardware */
3057 if (!IS_HASWELL(dev_priv
) && !IS_BROADWELL(dev_priv
)) {
3058 unsigned int rotation
= plane_state
->base
.rotation
;
3059 int src_w
= drm_rect_width(&plane_state
->base
.src
) >> 16;
3060 int src_h
= drm_rect_height(&plane_state
->base
.src
) >> 16;
3062 if (rotation
& DRM_MODE_ROTATE_180
) {
3065 } else if (rotation
& DRM_MODE_REFLECT_X
) {
3070 plane_state
->main
.offset
= offset
;
3071 plane_state
->main
.x
= src_x
;
3072 plane_state
->main
.y
= src_y
;
3077 static void i9xx_update_primary_plane(struct intel_plane
*primary
,
3078 const struct intel_crtc_state
*crtc_state
,
3079 const struct intel_plane_state
*plane_state
)
3081 struct drm_i915_private
*dev_priv
= to_i915(primary
->base
.dev
);
3082 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
3083 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
3084 enum plane plane
= primary
->plane
;
3086 u32 dspcntr
= plane_state
->ctl
;
3087 i915_reg_t reg
= DSPCNTR(plane
);
3088 int x
= plane_state
->main
.x
;
3089 int y
= plane_state
->main
.y
;
3090 unsigned long irqflags
;
3092 linear_offset
= intel_fb_xy_to_linear(x
, y
, plane_state
, 0);
3094 if (INTEL_GEN(dev_priv
) >= 4)
3095 crtc
->dspaddr_offset
= plane_state
->main
.offset
;
3097 crtc
->dspaddr_offset
= linear_offset
;
3099 crtc
->adjusted_x
= x
;
3100 crtc
->adjusted_y
= y
;
3102 spin_lock_irqsave(&dev_priv
->uncore
.lock
, irqflags
);
3104 if (INTEL_GEN(dev_priv
) < 4) {
3105 /* pipesrc and dspsize control the size that is scaled from,
3106 * which should always be the user's requested size.
3108 I915_WRITE_FW(DSPSIZE(plane
),
3109 ((crtc_state
->pipe_src_h
- 1) << 16) |
3110 (crtc_state
->pipe_src_w
- 1));
3111 I915_WRITE_FW(DSPPOS(plane
), 0);
3112 } else if (IS_CHERRYVIEW(dev_priv
) && plane
== PLANE_B
) {
3113 I915_WRITE_FW(PRIMSIZE(plane
),
3114 ((crtc_state
->pipe_src_h
- 1) << 16) |
3115 (crtc_state
->pipe_src_w
- 1));
3116 I915_WRITE_FW(PRIMPOS(plane
), 0);
3117 I915_WRITE_FW(PRIMCNSTALPHA(plane
), 0);
3120 I915_WRITE_FW(reg
, dspcntr
);
3122 I915_WRITE_FW(DSPSTRIDE(plane
), fb
->pitches
[0]);
3123 if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
)) {
3124 I915_WRITE_FW(DSPSURF(plane
),
3125 intel_plane_ggtt_offset(plane_state
) +
3126 crtc
->dspaddr_offset
);
3127 I915_WRITE_FW(DSPOFFSET(plane
), (y
<< 16) | x
);
3128 } else if (INTEL_GEN(dev_priv
) >= 4) {
3129 I915_WRITE_FW(DSPSURF(plane
),
3130 intel_plane_ggtt_offset(plane_state
) +
3131 crtc
->dspaddr_offset
);
3132 I915_WRITE_FW(DSPTILEOFF(plane
), (y
<< 16) | x
);
3133 I915_WRITE_FW(DSPLINOFF(plane
), linear_offset
);
3135 I915_WRITE_FW(DSPADDR(plane
),
3136 intel_plane_ggtt_offset(plane_state
) +
3137 crtc
->dspaddr_offset
);
3139 POSTING_READ_FW(reg
);
3141 spin_unlock_irqrestore(&dev_priv
->uncore
.lock
, irqflags
);
3144 static void i9xx_disable_primary_plane(struct intel_plane
*primary
,
3145 struct intel_crtc
*crtc
)
3147 struct drm_i915_private
*dev_priv
= to_i915(primary
->base
.dev
);
3148 enum plane plane
= primary
->plane
;
3149 unsigned long irqflags
;
3151 spin_lock_irqsave(&dev_priv
->uncore
.lock
, irqflags
);
3153 I915_WRITE_FW(DSPCNTR(plane
), 0);
3154 if (INTEL_INFO(dev_priv
)->gen
>= 4)
3155 I915_WRITE_FW(DSPSURF(plane
), 0);
3157 I915_WRITE_FW(DSPADDR(plane
), 0);
3158 POSTING_READ_FW(DSPCNTR(plane
));
3160 spin_unlock_irqrestore(&dev_priv
->uncore
.lock
, irqflags
);
3164 intel_fb_stride_alignment(const struct drm_framebuffer
*fb
, int plane
)
3166 if (fb
->modifier
== DRM_FORMAT_MOD_LINEAR
)
3169 return intel_tile_width_bytes(fb
, plane
);
3172 static void skl_detach_scaler(struct intel_crtc
*intel_crtc
, int id
)
3174 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3175 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3177 I915_WRITE(SKL_PS_CTRL(intel_crtc
->pipe
, id
), 0);
3178 I915_WRITE(SKL_PS_WIN_POS(intel_crtc
->pipe
, id
), 0);
3179 I915_WRITE(SKL_PS_WIN_SZ(intel_crtc
->pipe
, id
), 0);
3183 * This function detaches (aka. unbinds) unused scalers in hardware
3185 static void skl_detach_scalers(struct intel_crtc
*intel_crtc
)
3187 struct intel_crtc_scaler_state
*scaler_state
;
3190 scaler_state
= &intel_crtc
->config
->scaler_state
;
3192 /* loop through and disable scalers that aren't in use */
3193 for (i
= 0; i
< intel_crtc
->num_scalers
; i
++) {
3194 if (!scaler_state
->scalers
[i
].in_use
)
3195 skl_detach_scaler(intel_crtc
, i
);
3199 u32
skl_plane_stride(const struct drm_framebuffer
*fb
, int plane
,
3200 unsigned int rotation
)
3204 if (plane
>= fb
->format
->num_planes
)
3207 stride
= intel_fb_pitch(fb
, plane
, rotation
);
3210 * The stride is either expressed as a multiple of 64 bytes chunks for
3211 * linear buffers or in number of tiles for tiled buffers.
3213 if (drm_rotation_90_or_270(rotation
))
3214 stride
/= intel_tile_height(fb
, plane
);
3216 stride
/= intel_fb_stride_alignment(fb
, plane
);
3221 static u32
skl_plane_ctl_format(uint32_t pixel_format
)
3223 switch (pixel_format
) {
3225 return PLANE_CTL_FORMAT_INDEXED
;
3226 case DRM_FORMAT_RGB565
:
3227 return PLANE_CTL_FORMAT_RGB_565
;
3228 case DRM_FORMAT_XBGR8888
:
3229 return PLANE_CTL_FORMAT_XRGB_8888
| PLANE_CTL_ORDER_RGBX
;
3230 case DRM_FORMAT_XRGB8888
:
3231 return PLANE_CTL_FORMAT_XRGB_8888
;
3233 * XXX: For ARBG/ABGR formats we default to expecting scanout buffers
3234 * to be already pre-multiplied. We need to add a knob (or a different
3235 * DRM_FORMAT) for user-space to configure that.
3237 case DRM_FORMAT_ABGR8888
:
3238 return PLANE_CTL_FORMAT_XRGB_8888
| PLANE_CTL_ORDER_RGBX
|
3239 PLANE_CTL_ALPHA_SW_PREMULTIPLY
;
3240 case DRM_FORMAT_ARGB8888
:
3241 return PLANE_CTL_FORMAT_XRGB_8888
|
3242 PLANE_CTL_ALPHA_SW_PREMULTIPLY
;
3243 case DRM_FORMAT_XRGB2101010
:
3244 return PLANE_CTL_FORMAT_XRGB_2101010
;
3245 case DRM_FORMAT_XBGR2101010
:
3246 return PLANE_CTL_ORDER_RGBX
| PLANE_CTL_FORMAT_XRGB_2101010
;
3247 case DRM_FORMAT_YUYV
:
3248 return PLANE_CTL_FORMAT_YUV422
| PLANE_CTL_YUV422_YUYV
;
3249 case DRM_FORMAT_YVYU
:
3250 return PLANE_CTL_FORMAT_YUV422
| PLANE_CTL_YUV422_YVYU
;
3251 case DRM_FORMAT_UYVY
:
3252 return PLANE_CTL_FORMAT_YUV422
| PLANE_CTL_YUV422_UYVY
;
3253 case DRM_FORMAT_VYUY
:
3254 return PLANE_CTL_FORMAT_YUV422
| PLANE_CTL_YUV422_VYUY
;
3256 MISSING_CASE(pixel_format
);
3262 static u32
skl_plane_ctl_tiling(uint64_t fb_modifier
)
3264 switch (fb_modifier
) {
3265 case DRM_FORMAT_MOD_LINEAR
:
3267 case I915_FORMAT_MOD_X_TILED
:
3268 return PLANE_CTL_TILED_X
;
3269 case I915_FORMAT_MOD_Y_TILED
:
3270 return PLANE_CTL_TILED_Y
;
3271 case I915_FORMAT_MOD_Yf_TILED
:
3272 return PLANE_CTL_TILED_YF
;
3274 MISSING_CASE(fb_modifier
);
3280 static u32
skl_plane_ctl_rotation(unsigned int rotation
)
3283 case DRM_MODE_ROTATE_0
:
3286 * DRM_MODE_ROTATE_ is counter clockwise to stay compatible with Xrandr
3287 * while i915 HW rotation is clockwise, thats why this swapping.
3289 case DRM_MODE_ROTATE_90
:
3290 return PLANE_CTL_ROTATE_270
;
3291 case DRM_MODE_ROTATE_180
:
3292 return PLANE_CTL_ROTATE_180
;
3293 case DRM_MODE_ROTATE_270
:
3294 return PLANE_CTL_ROTATE_90
;
3296 MISSING_CASE(rotation
);
3302 u32
skl_plane_ctl(const struct intel_crtc_state
*crtc_state
,
3303 const struct intel_plane_state
*plane_state
)
3305 struct drm_i915_private
*dev_priv
=
3306 to_i915(plane_state
->base
.plane
->dev
);
3307 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
3308 unsigned int rotation
= plane_state
->base
.rotation
;
3309 const struct drm_intel_sprite_colorkey
*key
= &plane_state
->ckey
;
3312 plane_ctl
= PLANE_CTL_ENABLE
;
3314 if (!IS_GEMINILAKE(dev_priv
) && !IS_CANNONLAKE(dev_priv
)) {
3316 PLANE_CTL_PIPE_GAMMA_ENABLE
|
3317 PLANE_CTL_PIPE_CSC_ENABLE
|
3318 PLANE_CTL_PLANE_GAMMA_DISABLE
;
3321 plane_ctl
|= skl_plane_ctl_format(fb
->format
->format
);
3322 plane_ctl
|= skl_plane_ctl_tiling(fb
->modifier
);
3323 plane_ctl
|= skl_plane_ctl_rotation(rotation
);
3325 if (key
->flags
& I915_SET_COLORKEY_DESTINATION
)
3326 plane_ctl
|= PLANE_CTL_KEY_ENABLE_DESTINATION
;
3327 else if (key
->flags
& I915_SET_COLORKEY_SOURCE
)
3328 plane_ctl
|= PLANE_CTL_KEY_ENABLE_SOURCE
;
3333 static void skylake_update_primary_plane(struct intel_plane
*plane
,
3334 const struct intel_crtc_state
*crtc_state
,
3335 const struct intel_plane_state
*plane_state
)
3337 struct drm_i915_private
*dev_priv
= to_i915(plane
->base
.dev
);
3338 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
3339 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
3340 enum plane_id plane_id
= plane
->id
;
3341 enum pipe pipe
= plane
->pipe
;
3342 u32 plane_ctl
= plane_state
->ctl
;
3343 unsigned int rotation
= plane_state
->base
.rotation
;
3344 u32 stride
= skl_plane_stride(fb
, 0, rotation
);
3345 u32 surf_addr
= plane_state
->main
.offset
;
3346 int scaler_id
= plane_state
->scaler_id
;
3347 int src_x
= plane_state
->main
.x
;
3348 int src_y
= plane_state
->main
.y
;
3349 int src_w
= drm_rect_width(&plane_state
->base
.src
) >> 16;
3350 int src_h
= drm_rect_height(&plane_state
->base
.src
) >> 16;
3351 int dst_x
= plane_state
->base
.dst
.x1
;
3352 int dst_y
= plane_state
->base
.dst
.y1
;
3353 int dst_w
= drm_rect_width(&plane_state
->base
.dst
);
3354 int dst_h
= drm_rect_height(&plane_state
->base
.dst
);
3355 unsigned long irqflags
;
3357 /* Sizes are 0 based */
3363 crtc
->dspaddr_offset
= surf_addr
;
3365 crtc
->adjusted_x
= src_x
;
3366 crtc
->adjusted_y
= src_y
;
3368 spin_lock_irqsave(&dev_priv
->uncore
.lock
, irqflags
);
3370 if (IS_GEMINILAKE(dev_priv
) || IS_CANNONLAKE(dev_priv
)) {
3371 I915_WRITE_FW(PLANE_COLOR_CTL(pipe
, plane_id
),
3372 PLANE_COLOR_PIPE_GAMMA_ENABLE
|
3373 PLANE_COLOR_PIPE_CSC_ENABLE
|
3374 PLANE_COLOR_PLANE_GAMMA_DISABLE
);
3377 I915_WRITE_FW(PLANE_CTL(pipe
, plane_id
), plane_ctl
);
3378 I915_WRITE_FW(PLANE_OFFSET(pipe
, plane_id
), (src_y
<< 16) | src_x
);
3379 I915_WRITE_FW(PLANE_STRIDE(pipe
, plane_id
), stride
);
3380 I915_WRITE_FW(PLANE_SIZE(pipe
, plane_id
), (src_h
<< 16) | src_w
);
3382 if (scaler_id
>= 0) {
3383 uint32_t ps_ctrl
= 0;
3385 WARN_ON(!dst_w
|| !dst_h
);
3386 ps_ctrl
= PS_SCALER_EN
| PS_PLANE_SEL(plane_id
) |
3387 crtc_state
->scaler_state
.scalers
[scaler_id
].mode
;
3388 I915_WRITE_FW(SKL_PS_CTRL(pipe
, scaler_id
), ps_ctrl
);
3389 I915_WRITE_FW(SKL_PS_PWR_GATE(pipe
, scaler_id
), 0);
3390 I915_WRITE_FW(SKL_PS_WIN_POS(pipe
, scaler_id
), (dst_x
<< 16) | dst_y
);
3391 I915_WRITE_FW(SKL_PS_WIN_SZ(pipe
, scaler_id
), (dst_w
<< 16) | dst_h
);
3392 I915_WRITE_FW(PLANE_POS(pipe
, plane_id
), 0);
3394 I915_WRITE_FW(PLANE_POS(pipe
, plane_id
), (dst_y
<< 16) | dst_x
);
3397 I915_WRITE_FW(PLANE_SURF(pipe
, plane_id
),
3398 intel_plane_ggtt_offset(plane_state
) + surf_addr
);
3400 POSTING_READ_FW(PLANE_SURF(pipe
, plane_id
));
3402 spin_unlock_irqrestore(&dev_priv
->uncore
.lock
, irqflags
);
3405 static void skylake_disable_primary_plane(struct intel_plane
*primary
,
3406 struct intel_crtc
*crtc
)
3408 struct drm_i915_private
*dev_priv
= to_i915(primary
->base
.dev
);
3409 enum plane_id plane_id
= primary
->id
;
3410 enum pipe pipe
= primary
->pipe
;
3411 unsigned long irqflags
;
3413 spin_lock_irqsave(&dev_priv
->uncore
.lock
, irqflags
);
3415 I915_WRITE_FW(PLANE_CTL(pipe
, plane_id
), 0);
3416 I915_WRITE_FW(PLANE_SURF(pipe
, plane_id
), 0);
3417 POSTING_READ_FW(PLANE_SURF(pipe
, plane_id
));
3419 spin_unlock_irqrestore(&dev_priv
->uncore
.lock
, irqflags
);
3422 static void intel_complete_page_flips(struct drm_i915_private
*dev_priv
)
3424 struct intel_crtc
*crtc
;
3426 for_each_intel_crtc(&dev_priv
->drm
, crtc
)
3427 intel_finish_page_flip_cs(dev_priv
, crtc
->pipe
);
3430 static void intel_update_primary_planes(struct drm_device
*dev
)
3432 struct drm_crtc
*crtc
;
3434 for_each_crtc(dev
, crtc
) {
3435 struct intel_plane
*plane
= to_intel_plane(crtc
->primary
);
3436 struct intel_plane_state
*plane_state
=
3437 to_intel_plane_state(plane
->base
.state
);
3439 if (plane_state
->base
.visible
) {
3440 trace_intel_update_plane(&plane
->base
,
3441 to_intel_crtc(crtc
));
3443 plane
->update_plane(plane
,
3444 to_intel_crtc_state(crtc
->state
),
3451 __intel_display_resume(struct drm_device
*dev
,
3452 struct drm_atomic_state
*state
,
3453 struct drm_modeset_acquire_ctx
*ctx
)
3455 struct drm_crtc_state
*crtc_state
;
3456 struct drm_crtc
*crtc
;
3459 intel_modeset_setup_hw_state(dev
, ctx
);
3460 i915_redisable_vga(to_i915(dev
));
3466 * We've duplicated the state, pointers to the old state are invalid.
3468 * Don't attempt to use the old state until we commit the duplicated state.
3470 for_each_new_crtc_in_state(state
, crtc
, crtc_state
, i
) {
3472 * Force recalculation even if we restore
3473 * current state. With fast modeset this may not result
3474 * in a modeset when the state is compatible.
3476 crtc_state
->mode_changed
= true;
3479 /* ignore any reset values/BIOS leftovers in the WM registers */
3480 if (!HAS_GMCH_DISPLAY(to_i915(dev
)))
3481 to_intel_atomic_state(state
)->skip_intermediate_wm
= true;
3483 ret
= drm_atomic_helper_commit_duplicated_state(state
, ctx
);
3485 WARN_ON(ret
== -EDEADLK
);
3489 static bool gpu_reset_clobbers_display(struct drm_i915_private
*dev_priv
)
3491 return intel_has_gpu_reset(dev_priv
) &&
3492 INTEL_GEN(dev_priv
) < 5 && !IS_G4X(dev_priv
);
3495 void intel_prepare_reset(struct drm_i915_private
*dev_priv
)
3497 struct drm_device
*dev
= &dev_priv
->drm
;
3498 struct drm_modeset_acquire_ctx
*ctx
= &dev_priv
->reset_ctx
;
3499 struct drm_atomic_state
*state
;
3503 * Need mode_config.mutex so that we don't
3504 * trample ongoing ->detect() and whatnot.
3506 mutex_lock(&dev
->mode_config
.mutex
);
3507 drm_modeset_acquire_init(ctx
, 0);
3509 ret
= drm_modeset_lock_all_ctx(dev
, ctx
);
3510 if (ret
!= -EDEADLK
)
3513 drm_modeset_backoff(ctx
);
3516 /* reset doesn't touch the display, but flips might get nuked anyway, */
3517 if (!i915
.force_reset_modeset_test
&&
3518 !gpu_reset_clobbers_display(dev_priv
))
3522 * Disabling the crtcs gracefully seems nicer. Also the
3523 * g33 docs say we should at least disable all the planes.
3525 state
= drm_atomic_helper_duplicate_state(dev
, ctx
);
3526 if (IS_ERR(state
)) {
3527 ret
= PTR_ERR(state
);
3528 DRM_ERROR("Duplicating state failed with %i\n", ret
);
3532 ret
= drm_atomic_helper_disable_all(dev
, ctx
);
3534 DRM_ERROR("Suspending crtc's failed with %i\n", ret
);
3535 drm_atomic_state_put(state
);
3539 dev_priv
->modeset_restore_state
= state
;
3540 state
->acquire_ctx
= ctx
;
3543 void intel_finish_reset(struct drm_i915_private
*dev_priv
)
3545 struct drm_device
*dev
= &dev_priv
->drm
;
3546 struct drm_modeset_acquire_ctx
*ctx
= &dev_priv
->reset_ctx
;
3547 struct drm_atomic_state
*state
= dev_priv
->modeset_restore_state
;
3551 * Flips in the rings will be nuked by the reset,
3552 * so complete all pending flips so that user space
3553 * will get its events and not get stuck.
3555 intel_complete_page_flips(dev_priv
);
3557 dev_priv
->modeset_restore_state
= NULL
;
3559 /* reset doesn't touch the display */
3560 if (!gpu_reset_clobbers_display(dev_priv
)) {
3563 * Flips in the rings have been nuked by the reset,
3564 * so update the base address of all primary
3565 * planes to the the last fb to make sure we're
3566 * showing the correct fb after a reset.
3568 * FIXME: Atomic will make this obsolete since we won't schedule
3569 * CS-based flips (which might get lost in gpu resets) any more.
3571 intel_update_primary_planes(dev
);
3573 ret
= __intel_display_resume(dev
, state
, ctx
);
3575 DRM_ERROR("Restoring old state failed with %i\n", ret
);
3579 * The display has been reset as well,
3580 * so need a full re-initialization.
3582 intel_runtime_pm_disable_interrupts(dev_priv
);
3583 intel_runtime_pm_enable_interrupts(dev_priv
);
3585 intel_pps_unlock_regs_wa(dev_priv
);
3586 intel_modeset_init_hw(dev
);
3588 spin_lock_irq(&dev_priv
->irq_lock
);
3589 if (dev_priv
->display
.hpd_irq_setup
)
3590 dev_priv
->display
.hpd_irq_setup(dev_priv
);
3591 spin_unlock_irq(&dev_priv
->irq_lock
);
3593 ret
= __intel_display_resume(dev
, state
, ctx
);
3595 DRM_ERROR("Restoring old state failed with %i\n", ret
);
3597 intel_hpd_init(dev_priv
);
3601 drm_atomic_state_put(state
);
3602 drm_modeset_drop_locks(ctx
);
3603 drm_modeset_acquire_fini(ctx
);
3604 mutex_unlock(&dev
->mode_config
.mutex
);
3607 static bool abort_flip_on_reset(struct intel_crtc
*crtc
)
3609 struct i915_gpu_error
*error
= &to_i915(crtc
->base
.dev
)->gpu_error
;
3611 if (i915_reset_backoff(error
))
3614 if (crtc
->reset_count
!= i915_reset_count(error
))
3620 static bool intel_crtc_has_pending_flip(struct drm_crtc
*crtc
)
3622 struct drm_device
*dev
= crtc
->dev
;
3623 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3626 if (abort_flip_on_reset(intel_crtc
))
3629 spin_lock_irq(&dev
->event_lock
);
3630 pending
= to_intel_crtc(crtc
)->flip_work
!= NULL
;
3631 spin_unlock_irq(&dev
->event_lock
);
3636 static void intel_update_pipe_config(struct intel_crtc
*crtc
,
3637 struct intel_crtc_state
*old_crtc_state
)
3639 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
3640 struct intel_crtc_state
*pipe_config
=
3641 to_intel_crtc_state(crtc
->base
.state
);
3643 /* drm_atomic_helper_update_legacy_modeset_state might not be called. */
3644 crtc
->base
.mode
= crtc
->base
.state
->mode
;
3647 * Update pipe size and adjust fitter if needed: the reason for this is
3648 * that in compute_mode_changes we check the native mode (not the pfit
3649 * mode) to see if we can flip rather than do a full mode set. In the
3650 * fastboot case, we'll flip, but if we don't update the pipesrc and
3651 * pfit state, we'll end up with a big fb scanned out into the wrong
3655 I915_WRITE(PIPESRC(crtc
->pipe
),
3656 ((pipe_config
->pipe_src_w
- 1) << 16) |
3657 (pipe_config
->pipe_src_h
- 1));
3659 /* on skylake this is done by detaching scalers */
3660 if (INTEL_GEN(dev_priv
) >= 9) {
3661 skl_detach_scalers(crtc
);
3663 if (pipe_config
->pch_pfit
.enabled
)
3664 skylake_pfit_enable(crtc
);
3665 } else if (HAS_PCH_SPLIT(dev_priv
)) {
3666 if (pipe_config
->pch_pfit
.enabled
)
3667 ironlake_pfit_enable(crtc
);
3668 else if (old_crtc_state
->pch_pfit
.enabled
)
3669 ironlake_pfit_disable(crtc
, true);
3673 static void intel_fdi_normal_train(struct intel_crtc
*crtc
)
3675 struct drm_device
*dev
= crtc
->base
.dev
;
3676 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3677 int pipe
= crtc
->pipe
;
3681 /* enable normal train */
3682 reg
= FDI_TX_CTL(pipe
);
3683 temp
= I915_READ(reg
);
3684 if (IS_IVYBRIDGE(dev_priv
)) {
3685 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
3686 temp
|= FDI_LINK_TRAIN_NONE_IVB
| FDI_TX_ENHANCE_FRAME_ENABLE
;
3688 temp
&= ~FDI_LINK_TRAIN_NONE
;
3689 temp
|= FDI_LINK_TRAIN_NONE
| FDI_TX_ENHANCE_FRAME_ENABLE
;
3691 I915_WRITE(reg
, temp
);
3693 reg
= FDI_RX_CTL(pipe
);
3694 temp
= I915_READ(reg
);
3695 if (HAS_PCH_CPT(dev_priv
)) {
3696 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3697 temp
|= FDI_LINK_TRAIN_NORMAL_CPT
;
3699 temp
&= ~FDI_LINK_TRAIN_NONE
;
3700 temp
|= FDI_LINK_TRAIN_NONE
;
3702 I915_WRITE(reg
, temp
| FDI_RX_ENHANCE_FRAME_ENABLE
);
3704 /* wait one idle pattern time */
3708 /* IVB wants error correction enabled */
3709 if (IS_IVYBRIDGE(dev_priv
))
3710 I915_WRITE(reg
, I915_READ(reg
) | FDI_FS_ERRC_ENABLE
|
3711 FDI_FE_ERRC_ENABLE
);
3714 /* The FDI link training functions for ILK/Ibexpeak. */
3715 static void ironlake_fdi_link_train(struct intel_crtc
*crtc
,
3716 const struct intel_crtc_state
*crtc_state
)
3718 struct drm_device
*dev
= crtc
->base
.dev
;
3719 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3720 int pipe
= crtc
->pipe
;
3724 /* FDI needs bits from pipe first */
3725 assert_pipe_enabled(dev_priv
, pipe
);
3727 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3729 reg
= FDI_RX_IMR(pipe
);
3730 temp
= I915_READ(reg
);
3731 temp
&= ~FDI_RX_SYMBOL_LOCK
;
3732 temp
&= ~FDI_RX_BIT_LOCK
;
3733 I915_WRITE(reg
, temp
);
3737 /* enable CPU FDI TX and PCH FDI RX */
3738 reg
= FDI_TX_CTL(pipe
);
3739 temp
= I915_READ(reg
);
3740 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
3741 temp
|= FDI_DP_PORT_WIDTH(crtc_state
->fdi_lanes
);
3742 temp
&= ~FDI_LINK_TRAIN_NONE
;
3743 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3744 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
3746 reg
= FDI_RX_CTL(pipe
);
3747 temp
= I915_READ(reg
);
3748 temp
&= ~FDI_LINK_TRAIN_NONE
;
3749 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3750 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
3755 /* Ironlake workaround, enable clock pointer after FDI enable*/
3756 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
3757 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
|
3758 FDI_RX_PHASE_SYNC_POINTER_EN
);
3760 reg
= FDI_RX_IIR(pipe
);
3761 for (tries
= 0; tries
< 5; tries
++) {
3762 temp
= I915_READ(reg
);
3763 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3765 if ((temp
& FDI_RX_BIT_LOCK
)) {
3766 DRM_DEBUG_KMS("FDI train 1 done.\n");
3767 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
3772 DRM_ERROR("FDI train 1 fail!\n");
3775 reg
= FDI_TX_CTL(pipe
);
3776 temp
= I915_READ(reg
);
3777 temp
&= ~FDI_LINK_TRAIN_NONE
;
3778 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3779 I915_WRITE(reg
, temp
);
3781 reg
= FDI_RX_CTL(pipe
);
3782 temp
= I915_READ(reg
);
3783 temp
&= ~FDI_LINK_TRAIN_NONE
;
3784 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3785 I915_WRITE(reg
, temp
);
3790 reg
= FDI_RX_IIR(pipe
);
3791 for (tries
= 0; tries
< 5; tries
++) {
3792 temp
= I915_READ(reg
);
3793 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3795 if (temp
& FDI_RX_SYMBOL_LOCK
) {
3796 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3797 DRM_DEBUG_KMS("FDI train 2 done.\n");
3802 DRM_ERROR("FDI train 2 fail!\n");
3804 DRM_DEBUG_KMS("FDI train done\n");
3808 static const int snb_b_fdi_train_param
[] = {
3809 FDI_LINK_TRAIN_400MV_0DB_SNB_B
,
3810 FDI_LINK_TRAIN_400MV_6DB_SNB_B
,
3811 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B
,
3812 FDI_LINK_TRAIN_800MV_0DB_SNB_B
,
3815 /* The FDI link training functions for SNB/Cougarpoint. */
3816 static void gen6_fdi_link_train(struct intel_crtc
*crtc
,
3817 const struct intel_crtc_state
*crtc_state
)
3819 struct drm_device
*dev
= crtc
->base
.dev
;
3820 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3821 int pipe
= crtc
->pipe
;
3825 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3827 reg
= FDI_RX_IMR(pipe
);
3828 temp
= I915_READ(reg
);
3829 temp
&= ~FDI_RX_SYMBOL_LOCK
;
3830 temp
&= ~FDI_RX_BIT_LOCK
;
3831 I915_WRITE(reg
, temp
);
3836 /* enable CPU FDI TX and PCH FDI RX */
3837 reg
= FDI_TX_CTL(pipe
);
3838 temp
= I915_READ(reg
);
3839 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
3840 temp
|= FDI_DP_PORT_WIDTH(crtc_state
->fdi_lanes
);
3841 temp
&= ~FDI_LINK_TRAIN_NONE
;
3842 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3843 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3845 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
3846 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
3848 I915_WRITE(FDI_RX_MISC(pipe
),
3849 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
3851 reg
= FDI_RX_CTL(pipe
);
3852 temp
= I915_READ(reg
);
3853 if (HAS_PCH_CPT(dev_priv
)) {
3854 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3855 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
3857 temp
&= ~FDI_LINK_TRAIN_NONE
;
3858 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3860 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
3865 for (i
= 0; i
< 4; i
++) {
3866 reg
= FDI_TX_CTL(pipe
);
3867 temp
= I915_READ(reg
);
3868 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3869 temp
|= snb_b_fdi_train_param
[i
];
3870 I915_WRITE(reg
, temp
);
3875 for (retry
= 0; retry
< 5; retry
++) {
3876 reg
= FDI_RX_IIR(pipe
);
3877 temp
= I915_READ(reg
);
3878 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3879 if (temp
& FDI_RX_BIT_LOCK
) {
3880 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
3881 DRM_DEBUG_KMS("FDI train 1 done.\n");
3890 DRM_ERROR("FDI train 1 fail!\n");
3893 reg
= FDI_TX_CTL(pipe
);
3894 temp
= I915_READ(reg
);
3895 temp
&= ~FDI_LINK_TRAIN_NONE
;
3896 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3897 if (IS_GEN6(dev_priv
)) {
3898 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3900 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
3902 I915_WRITE(reg
, temp
);
3904 reg
= FDI_RX_CTL(pipe
);
3905 temp
= I915_READ(reg
);
3906 if (HAS_PCH_CPT(dev_priv
)) {
3907 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3908 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
3910 temp
&= ~FDI_LINK_TRAIN_NONE
;
3911 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3913 I915_WRITE(reg
, temp
);
3918 for (i
= 0; i
< 4; i
++) {
3919 reg
= FDI_TX_CTL(pipe
);
3920 temp
= I915_READ(reg
);
3921 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3922 temp
|= snb_b_fdi_train_param
[i
];
3923 I915_WRITE(reg
, temp
);
3928 for (retry
= 0; retry
< 5; retry
++) {
3929 reg
= FDI_RX_IIR(pipe
);
3930 temp
= I915_READ(reg
);
3931 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3932 if (temp
& FDI_RX_SYMBOL_LOCK
) {
3933 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3934 DRM_DEBUG_KMS("FDI train 2 done.\n");
3943 DRM_ERROR("FDI train 2 fail!\n");
3945 DRM_DEBUG_KMS("FDI train done.\n");
3948 /* Manual link training for Ivy Bridge A0 parts */
3949 static void ivb_manual_fdi_link_train(struct intel_crtc
*crtc
,
3950 const struct intel_crtc_state
*crtc_state
)
3952 struct drm_device
*dev
= crtc
->base
.dev
;
3953 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3954 int pipe
= crtc
->pipe
;
3958 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3960 reg
= FDI_RX_IMR(pipe
);
3961 temp
= I915_READ(reg
);
3962 temp
&= ~FDI_RX_SYMBOL_LOCK
;
3963 temp
&= ~FDI_RX_BIT_LOCK
;
3964 I915_WRITE(reg
, temp
);
3969 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
3970 I915_READ(FDI_RX_IIR(pipe
)));
3972 /* Try each vswing and preemphasis setting twice before moving on */
3973 for (j
= 0; j
< ARRAY_SIZE(snb_b_fdi_train_param
) * 2; j
++) {
3974 /* disable first in case we need to retry */
3975 reg
= FDI_TX_CTL(pipe
);
3976 temp
= I915_READ(reg
);
3977 temp
&= ~(FDI_LINK_TRAIN_AUTO
| FDI_LINK_TRAIN_NONE_IVB
);
3978 temp
&= ~FDI_TX_ENABLE
;
3979 I915_WRITE(reg
, temp
);
3981 reg
= FDI_RX_CTL(pipe
);
3982 temp
= I915_READ(reg
);
3983 temp
&= ~FDI_LINK_TRAIN_AUTO
;
3984 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3985 temp
&= ~FDI_RX_ENABLE
;
3986 I915_WRITE(reg
, temp
);
3988 /* enable CPU FDI TX and PCH FDI RX */
3989 reg
= FDI_TX_CTL(pipe
);
3990 temp
= I915_READ(reg
);
3991 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
3992 temp
|= FDI_DP_PORT_WIDTH(crtc_state
->fdi_lanes
);
3993 temp
|= FDI_LINK_TRAIN_PATTERN_1_IVB
;
3994 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3995 temp
|= snb_b_fdi_train_param
[j
/2];
3996 temp
|= FDI_COMPOSITE_SYNC
;
3997 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
3999 I915_WRITE(FDI_RX_MISC(pipe
),
4000 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
4002 reg
= FDI_RX_CTL(pipe
);
4003 temp
= I915_READ(reg
);
4004 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
4005 temp
|= FDI_COMPOSITE_SYNC
;
4006 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
4009 udelay(1); /* should be 0.5us */
4011 for (i
= 0; i
< 4; i
++) {
4012 reg
= FDI_RX_IIR(pipe
);
4013 temp
= I915_READ(reg
);
4014 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
4016 if (temp
& FDI_RX_BIT_LOCK
||
4017 (I915_READ(reg
) & FDI_RX_BIT_LOCK
)) {
4018 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
4019 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n",
4023 udelay(1); /* should be 0.5us */
4026 DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j
/ 2);
4031 reg
= FDI_TX_CTL(pipe
);
4032 temp
= I915_READ(reg
);
4033 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
4034 temp
|= FDI_LINK_TRAIN_PATTERN_2_IVB
;
4035 I915_WRITE(reg
, temp
);
4037 reg
= FDI_RX_CTL(pipe
);
4038 temp
= I915_READ(reg
);
4039 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
4040 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
4041 I915_WRITE(reg
, temp
);
4044 udelay(2); /* should be 1.5us */
4046 for (i
= 0; i
< 4; i
++) {
4047 reg
= FDI_RX_IIR(pipe
);
4048 temp
= I915_READ(reg
);
4049 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
4051 if (temp
& FDI_RX_SYMBOL_LOCK
||
4052 (I915_READ(reg
) & FDI_RX_SYMBOL_LOCK
)) {
4053 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
4054 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n",
4058 udelay(2); /* should be 1.5us */
4061 DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j
/ 2);
4065 DRM_DEBUG_KMS("FDI train done.\n");
4068 static void ironlake_fdi_pll_enable(struct intel_crtc
*intel_crtc
)
4070 struct drm_device
*dev
= intel_crtc
->base
.dev
;
4071 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4072 int pipe
= intel_crtc
->pipe
;
4076 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
4077 reg
= FDI_RX_CTL(pipe
);
4078 temp
= I915_READ(reg
);
4079 temp
&= ~(FDI_DP_PORT_WIDTH_MASK
| (0x7 << 16));
4080 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
->fdi_lanes
);
4081 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
4082 I915_WRITE(reg
, temp
| FDI_RX_PLL_ENABLE
);
4087 /* Switch from Rawclk to PCDclk */
4088 temp
= I915_READ(reg
);
4089 I915_WRITE(reg
, temp
| FDI_PCDCLK
);
4094 /* Enable CPU FDI TX PLL, always on for Ironlake */
4095 reg
= FDI_TX_CTL(pipe
);
4096 temp
= I915_READ(reg
);
4097 if ((temp
& FDI_TX_PLL_ENABLE
) == 0) {
4098 I915_WRITE(reg
, temp
| FDI_TX_PLL_ENABLE
);
4105 static void ironlake_fdi_pll_disable(struct intel_crtc
*intel_crtc
)
4107 struct drm_device
*dev
= intel_crtc
->base
.dev
;
4108 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4109 int pipe
= intel_crtc
->pipe
;
4113 /* Switch from PCDclk to Rawclk */
4114 reg
= FDI_RX_CTL(pipe
);
4115 temp
= I915_READ(reg
);
4116 I915_WRITE(reg
, temp
& ~FDI_PCDCLK
);
4118 /* Disable CPU FDI TX PLL */
4119 reg
= FDI_TX_CTL(pipe
);
4120 temp
= I915_READ(reg
);
4121 I915_WRITE(reg
, temp
& ~FDI_TX_PLL_ENABLE
);
4126 reg
= FDI_RX_CTL(pipe
);
4127 temp
= I915_READ(reg
);
4128 I915_WRITE(reg
, temp
& ~FDI_RX_PLL_ENABLE
);
4130 /* Wait for the clocks to turn off. */
4135 static void ironlake_fdi_disable(struct drm_crtc
*crtc
)
4137 struct drm_device
*dev
= crtc
->dev
;
4138 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4139 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4140 int pipe
= intel_crtc
->pipe
;
4144 /* disable CPU FDI tx and PCH FDI rx */
4145 reg
= FDI_TX_CTL(pipe
);
4146 temp
= I915_READ(reg
);
4147 I915_WRITE(reg
, temp
& ~FDI_TX_ENABLE
);
4150 reg
= FDI_RX_CTL(pipe
);
4151 temp
= I915_READ(reg
);
4152 temp
&= ~(0x7 << 16);
4153 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
4154 I915_WRITE(reg
, temp
& ~FDI_RX_ENABLE
);
4159 /* Ironlake workaround, disable clock pointer after downing FDI */
4160 if (HAS_PCH_IBX(dev_priv
))
4161 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
4163 /* still set train pattern 1 */
4164 reg
= FDI_TX_CTL(pipe
);
4165 temp
= I915_READ(reg
);
4166 temp
&= ~FDI_LINK_TRAIN_NONE
;
4167 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
4168 I915_WRITE(reg
, temp
);
4170 reg
= FDI_RX_CTL(pipe
);
4171 temp
= I915_READ(reg
);
4172 if (HAS_PCH_CPT(dev_priv
)) {
4173 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
4174 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
4176 temp
&= ~FDI_LINK_TRAIN_NONE
;
4177 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
4179 /* BPC in FDI rx is consistent with that in PIPECONF */
4180 temp
&= ~(0x07 << 16);
4181 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
4182 I915_WRITE(reg
, temp
);
4188 bool intel_has_pending_fb_unpin(struct drm_i915_private
*dev_priv
)
4190 struct intel_crtc
*crtc
;
4192 /* Note that we don't need to be called with mode_config.lock here
4193 * as our list of CRTC objects is static for the lifetime of the
4194 * device and so cannot disappear as we iterate. Similarly, we can
4195 * happily treat the predicates as racy, atomic checks as userspace
4196 * cannot claim and pin a new fb without at least acquring the
4197 * struct_mutex and so serialising with us.
4199 for_each_intel_crtc(&dev_priv
->drm
, crtc
) {
4200 if (atomic_read(&crtc
->unpin_work_count
) == 0)
4203 if (crtc
->flip_work
)
4204 intel_wait_for_vblank(dev_priv
, crtc
->pipe
);
4212 static void page_flip_completed(struct intel_crtc
*intel_crtc
)
4214 struct drm_i915_private
*dev_priv
= to_i915(intel_crtc
->base
.dev
);
4215 struct intel_flip_work
*work
= intel_crtc
->flip_work
;
4217 intel_crtc
->flip_work
= NULL
;
4220 drm_crtc_send_vblank_event(&intel_crtc
->base
, work
->event
);
4222 drm_crtc_vblank_put(&intel_crtc
->base
);
4224 wake_up_all(&dev_priv
->pending_flip_queue
);
4225 trace_i915_flip_complete(intel_crtc
->plane
,
4226 work
->pending_flip_obj
);
4228 queue_work(dev_priv
->wq
, &work
->unpin_work
);
4231 static int intel_crtc_wait_for_pending_flips(struct drm_crtc
*crtc
)
4233 struct drm_device
*dev
= crtc
->dev
;
4234 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4237 WARN_ON(waitqueue_active(&dev_priv
->pending_flip_queue
));
4239 ret
= wait_event_interruptible_timeout(
4240 dev_priv
->pending_flip_queue
,
4241 !intel_crtc_has_pending_flip(crtc
),
4248 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4249 struct intel_flip_work
*work
;
4251 spin_lock_irq(&dev
->event_lock
);
4252 work
= intel_crtc
->flip_work
;
4253 if (work
&& !is_mmio_work(work
)) {
4254 WARN_ONCE(1, "Removing stuck page flip\n");
4255 page_flip_completed(intel_crtc
);
4257 spin_unlock_irq(&dev
->event_lock
);
4263 void lpt_disable_iclkip(struct drm_i915_private
*dev_priv
)
4267 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_GATE
);
4269 mutex_lock(&dev_priv
->sb_lock
);
4271 temp
= intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
);
4272 temp
|= SBI_SSCCTL_DISABLE
;
4273 intel_sbi_write(dev_priv
, SBI_SSCCTL6
, temp
, SBI_ICLK
);
4275 mutex_unlock(&dev_priv
->sb_lock
);
4278 /* Program iCLKIP clock to the desired frequency */
4279 static void lpt_program_iclkip(struct intel_crtc
*crtc
)
4281 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
4282 int clock
= crtc
->config
->base
.adjusted_mode
.crtc_clock
;
4283 u32 divsel
, phaseinc
, auxdiv
, phasedir
= 0;
4286 lpt_disable_iclkip(dev_priv
);
4288 /* The iCLK virtual clock root frequency is in MHz,
4289 * but the adjusted_mode->crtc_clock in in KHz. To get the
4290 * divisors, it is necessary to divide one by another, so we
4291 * convert the virtual clock precision to KHz here for higher
4294 for (auxdiv
= 0; auxdiv
< 2; auxdiv
++) {
4295 u32 iclk_virtual_root_freq
= 172800 * 1000;
4296 u32 iclk_pi_range
= 64;
4297 u32 desired_divisor
;
4299 desired_divisor
= DIV_ROUND_CLOSEST(iclk_virtual_root_freq
,
4301 divsel
= (desired_divisor
/ iclk_pi_range
) - 2;
4302 phaseinc
= desired_divisor
% iclk_pi_range
;
4305 * Near 20MHz is a corner case which is
4306 * out of range for the 7-bit divisor
4312 /* This should not happen with any sane values */
4313 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel
) &
4314 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
);
4315 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir
) &
4316 ~SBI_SSCDIVINTPHASE_INCVAL_MASK
);
4318 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
4325 mutex_lock(&dev_priv
->sb_lock
);
4327 /* Program SSCDIVINTPHASE6 */
4328 temp
= intel_sbi_read(dev_priv
, SBI_SSCDIVINTPHASE6
, SBI_ICLK
);
4329 temp
&= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
;
4330 temp
|= SBI_SSCDIVINTPHASE_DIVSEL(divsel
);
4331 temp
&= ~SBI_SSCDIVINTPHASE_INCVAL_MASK
;
4332 temp
|= SBI_SSCDIVINTPHASE_INCVAL(phaseinc
);
4333 temp
|= SBI_SSCDIVINTPHASE_DIR(phasedir
);
4334 temp
|= SBI_SSCDIVINTPHASE_PROPAGATE
;
4335 intel_sbi_write(dev_priv
, SBI_SSCDIVINTPHASE6
, temp
, SBI_ICLK
);
4337 /* Program SSCAUXDIV */
4338 temp
= intel_sbi_read(dev_priv
, SBI_SSCAUXDIV6
, SBI_ICLK
);
4339 temp
&= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
4340 temp
|= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv
);
4341 intel_sbi_write(dev_priv
, SBI_SSCAUXDIV6
, temp
, SBI_ICLK
);
4343 /* Enable modulator and associated divider */
4344 temp
= intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
);
4345 temp
&= ~SBI_SSCCTL_DISABLE
;
4346 intel_sbi_write(dev_priv
, SBI_SSCCTL6
, temp
, SBI_ICLK
);
4348 mutex_unlock(&dev_priv
->sb_lock
);
4350 /* Wait for initialization time */
4353 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_UNGATE
);
4356 int lpt_get_iclkip(struct drm_i915_private
*dev_priv
)
4358 u32 divsel
, phaseinc
, auxdiv
;
4359 u32 iclk_virtual_root_freq
= 172800 * 1000;
4360 u32 iclk_pi_range
= 64;
4361 u32 desired_divisor
;
4364 if ((I915_READ(PIXCLK_GATE
) & PIXCLK_GATE_UNGATE
) == 0)
4367 mutex_lock(&dev_priv
->sb_lock
);
4369 temp
= intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
);
4370 if (temp
& SBI_SSCCTL_DISABLE
) {
4371 mutex_unlock(&dev_priv
->sb_lock
);
4375 temp
= intel_sbi_read(dev_priv
, SBI_SSCDIVINTPHASE6
, SBI_ICLK
);
4376 divsel
= (temp
& SBI_SSCDIVINTPHASE_DIVSEL_MASK
) >>
4377 SBI_SSCDIVINTPHASE_DIVSEL_SHIFT
;
4378 phaseinc
= (temp
& SBI_SSCDIVINTPHASE_INCVAL_MASK
) >>
4379 SBI_SSCDIVINTPHASE_INCVAL_SHIFT
;
4381 temp
= intel_sbi_read(dev_priv
, SBI_SSCAUXDIV6
, SBI_ICLK
);
4382 auxdiv
= (temp
& SBI_SSCAUXDIV_FINALDIV2SEL_MASK
) >>
4383 SBI_SSCAUXDIV_FINALDIV2SEL_SHIFT
;
4385 mutex_unlock(&dev_priv
->sb_lock
);
4387 desired_divisor
= (divsel
+ 2) * iclk_pi_range
+ phaseinc
;
4389 return DIV_ROUND_CLOSEST(iclk_virtual_root_freq
,
4390 desired_divisor
<< auxdiv
);
4393 static void ironlake_pch_transcoder_set_timings(struct intel_crtc
*crtc
,
4394 enum pipe pch_transcoder
)
4396 struct drm_device
*dev
= crtc
->base
.dev
;
4397 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4398 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
4400 I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder
),
4401 I915_READ(HTOTAL(cpu_transcoder
)));
4402 I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder
),
4403 I915_READ(HBLANK(cpu_transcoder
)));
4404 I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder
),
4405 I915_READ(HSYNC(cpu_transcoder
)));
4407 I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder
),
4408 I915_READ(VTOTAL(cpu_transcoder
)));
4409 I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder
),
4410 I915_READ(VBLANK(cpu_transcoder
)));
4411 I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder
),
4412 I915_READ(VSYNC(cpu_transcoder
)));
4413 I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder
),
4414 I915_READ(VSYNCSHIFT(cpu_transcoder
)));
4417 static void cpt_set_fdi_bc_bifurcation(struct drm_device
*dev
, bool enable
)
4419 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4422 temp
= I915_READ(SOUTH_CHICKEN1
);
4423 if (!!(temp
& FDI_BC_BIFURCATION_SELECT
) == enable
)
4426 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B
)) & FDI_RX_ENABLE
);
4427 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C
)) & FDI_RX_ENABLE
);
4429 temp
&= ~FDI_BC_BIFURCATION_SELECT
;
4431 temp
|= FDI_BC_BIFURCATION_SELECT
;
4433 DRM_DEBUG_KMS("%sabling fdi C rx\n", enable
? "en" : "dis");
4434 I915_WRITE(SOUTH_CHICKEN1
, temp
);
4435 POSTING_READ(SOUTH_CHICKEN1
);
4438 static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc
*intel_crtc
)
4440 struct drm_device
*dev
= intel_crtc
->base
.dev
;
4442 switch (intel_crtc
->pipe
) {
4446 if (intel_crtc
->config
->fdi_lanes
> 2)
4447 cpt_set_fdi_bc_bifurcation(dev
, false);
4449 cpt_set_fdi_bc_bifurcation(dev
, true);
4453 cpt_set_fdi_bc_bifurcation(dev
, true);
4461 /* Return which DP Port should be selected for Transcoder DP control */
4463 intel_trans_dp_port_sel(struct intel_crtc
*crtc
)
4465 struct drm_device
*dev
= crtc
->base
.dev
;
4466 struct intel_encoder
*encoder
;
4468 for_each_encoder_on_crtc(dev
, &crtc
->base
, encoder
) {
4469 if (encoder
->type
== INTEL_OUTPUT_DP
||
4470 encoder
->type
== INTEL_OUTPUT_EDP
)
4471 return enc_to_dig_port(&encoder
->base
)->port
;
4478 * Enable PCH resources required for PCH ports:
4480 * - FDI training & RX/TX
4481 * - update transcoder timings
4482 * - DP transcoding bits
4485 static void ironlake_pch_enable(const struct intel_crtc_state
*crtc_state
)
4487 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
4488 struct drm_device
*dev
= crtc
->base
.dev
;
4489 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4490 int pipe
= crtc
->pipe
;
4493 assert_pch_transcoder_disabled(dev_priv
, pipe
);
4495 if (IS_IVYBRIDGE(dev_priv
))
4496 ivybridge_update_fdi_bc_bifurcation(crtc
);
4498 /* Write the TU size bits before fdi link training, so that error
4499 * detection works. */
4500 I915_WRITE(FDI_RX_TUSIZE1(pipe
),
4501 I915_READ(PIPE_DATA_M1(pipe
)) & TU_SIZE_MASK
);
4503 /* For PCH output, training FDI link */
4504 dev_priv
->display
.fdi_link_train(crtc
, crtc_state
);
4506 /* We need to program the right clock selection before writing the pixel
4507 * mutliplier into the DPLL. */
4508 if (HAS_PCH_CPT(dev_priv
)) {
4511 temp
= I915_READ(PCH_DPLL_SEL
);
4512 temp
|= TRANS_DPLL_ENABLE(pipe
);
4513 sel
= TRANS_DPLLB_SEL(pipe
);
4514 if (crtc_state
->shared_dpll
==
4515 intel_get_shared_dpll_by_id(dev_priv
, DPLL_ID_PCH_PLL_B
))
4519 I915_WRITE(PCH_DPLL_SEL
, temp
);
4522 /* XXX: pch pll's can be enabled any time before we enable the PCH
4523 * transcoder, and we actually should do this to not upset any PCH
4524 * transcoder that already use the clock when we share it.
4526 * Note that enable_shared_dpll tries to do the right thing, but
4527 * get_shared_dpll unconditionally resets the pll - we need that to have
4528 * the right LVDS enable sequence. */
4529 intel_enable_shared_dpll(crtc
);
4531 /* set transcoder timing, panel must allow it */
4532 assert_panel_unlocked(dev_priv
, pipe
);
4533 ironlake_pch_transcoder_set_timings(crtc
, pipe
);
4535 intel_fdi_normal_train(crtc
);
4537 /* For PCH DP, enable TRANS_DP_CTL */
4538 if (HAS_PCH_CPT(dev_priv
) &&
4539 intel_crtc_has_dp_encoder(crtc_state
)) {
4540 const struct drm_display_mode
*adjusted_mode
=
4541 &crtc_state
->base
.adjusted_mode
;
4542 u32 bpc
= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) >> 5;
4543 i915_reg_t reg
= TRANS_DP_CTL(pipe
);
4544 temp
= I915_READ(reg
);
4545 temp
&= ~(TRANS_DP_PORT_SEL_MASK
|
4546 TRANS_DP_SYNC_MASK
|
4548 temp
|= TRANS_DP_OUTPUT_ENABLE
;
4549 temp
|= bpc
<< 9; /* same format but at 11:9 */
4551 if (adjusted_mode
->flags
& DRM_MODE_FLAG_PHSYNC
)
4552 temp
|= TRANS_DP_HSYNC_ACTIVE_HIGH
;
4553 if (adjusted_mode
->flags
& DRM_MODE_FLAG_PVSYNC
)
4554 temp
|= TRANS_DP_VSYNC_ACTIVE_HIGH
;
4556 switch (intel_trans_dp_port_sel(crtc
)) {
4558 temp
|= TRANS_DP_PORT_SEL_B
;
4561 temp
|= TRANS_DP_PORT_SEL_C
;
4564 temp
|= TRANS_DP_PORT_SEL_D
;
4570 I915_WRITE(reg
, temp
);
4573 ironlake_enable_pch_transcoder(dev_priv
, pipe
);
4576 static void lpt_pch_enable(const struct intel_crtc_state
*crtc_state
)
4578 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
4579 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
4580 enum transcoder cpu_transcoder
= crtc_state
->cpu_transcoder
;
4582 assert_pch_transcoder_disabled(dev_priv
, TRANSCODER_A
);
4584 lpt_program_iclkip(crtc
);
4586 /* Set transcoder timing. */
4587 ironlake_pch_transcoder_set_timings(crtc
, PIPE_A
);
4589 lpt_enable_pch_transcoder(dev_priv
, cpu_transcoder
);
4592 static void cpt_verify_modeset(struct drm_device
*dev
, int pipe
)
4594 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4595 i915_reg_t dslreg
= PIPEDSL(pipe
);
4598 temp
= I915_READ(dslreg
);
4600 if (wait_for(I915_READ(dslreg
) != temp
, 5)) {
4601 if (wait_for(I915_READ(dslreg
) != temp
, 5))
4602 DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe
));
4607 skl_update_scaler(struct intel_crtc_state
*crtc_state
, bool force_detach
,
4608 unsigned int scaler_user
, int *scaler_id
,
4609 int src_w
, int src_h
, int dst_w
, int dst_h
)
4611 struct intel_crtc_scaler_state
*scaler_state
=
4612 &crtc_state
->scaler_state
;
4613 struct intel_crtc
*intel_crtc
=
4614 to_intel_crtc(crtc_state
->base
.crtc
);
4615 struct drm_i915_private
*dev_priv
= to_i915(intel_crtc
->base
.dev
);
4616 const struct drm_display_mode
*adjusted_mode
=
4617 &crtc_state
->base
.adjusted_mode
;
4621 * Src coordinates are already rotated by 270 degrees for
4622 * the 90/270 degree plane rotation cases (to match the
4623 * GTT mapping), hence no need to account for rotation here.
4625 need_scaling
= src_w
!= dst_w
|| src_h
!= dst_h
;
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(dev_priv
, crtc
->plane
);
4834 if (IS_BROADWELL(dev_priv
)) {
4835 mutex_lock(&dev_priv
->rps
.hw_lock
);
4836 WARN_ON(sandybridge_pcode_write(dev_priv
, DISPLAY_IPS_CONTROL
, 0xc0000000));
4837 mutex_unlock(&dev_priv
->rps
.hw_lock
);
4838 /* Quoting Art Runyan: "its not safe to expect any particular
4839 * value in IPS_CTL bit 31 after enabling IPS through the
4840 * mailbox." Moreover, the mailbox may return a bogus state,
4841 * so we need to just enable it and continue on.
4844 I915_WRITE(IPS_CTL
, IPS_ENABLE
);
4845 /* The bit only becomes 1 in the next vblank, so this wait here
4846 * is essentially intel_wait_for_vblank. If we don't have this
4847 * and don't wait for vblanks until the end of crtc_enable, then
4848 * the HW state readout code will complain that the expected
4849 * IPS_CTL value is not the one we read. */
4850 if (intel_wait_for_register(dev_priv
,
4851 IPS_CTL
, IPS_ENABLE
, IPS_ENABLE
,
4853 DRM_ERROR("Timed out waiting for IPS enable\n");
4857 void hsw_disable_ips(struct intel_crtc
*crtc
)
4859 struct drm_device
*dev
= crtc
->base
.dev
;
4860 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4862 if (!crtc
->config
->ips_enabled
)
4865 assert_plane_enabled(dev_priv
, crtc
->plane
);
4866 if (IS_BROADWELL(dev_priv
)) {
4867 mutex_lock(&dev_priv
->rps
.hw_lock
);
4868 WARN_ON(sandybridge_pcode_write(dev_priv
, DISPLAY_IPS_CONTROL
, 0));
4869 mutex_unlock(&dev_priv
->rps
.hw_lock
);
4870 /* wait for pcode to finish disabling IPS, which may take up to 42ms */
4871 if (intel_wait_for_register(dev_priv
,
4872 IPS_CTL
, IPS_ENABLE
, 0,
4874 DRM_ERROR("Timed out waiting for IPS disable\n");
4876 I915_WRITE(IPS_CTL
, 0);
4877 POSTING_READ(IPS_CTL
);
4880 /* We need to wait for a vblank before we can disable the plane. */
4881 intel_wait_for_vblank(dev_priv
, crtc
->pipe
);
4884 static void intel_crtc_dpms_overlay_disable(struct intel_crtc
*intel_crtc
)
4886 if (intel_crtc
->overlay
) {
4887 struct drm_device
*dev
= intel_crtc
->base
.dev
;
4889 mutex_lock(&dev
->struct_mutex
);
4890 (void) intel_overlay_switch_off(intel_crtc
->overlay
);
4891 mutex_unlock(&dev
->struct_mutex
);
4894 /* Let userspace switch the overlay on again. In most cases userspace
4895 * has to recompute where to put it anyway.
4900 * intel_post_enable_primary - Perform operations after enabling primary plane
4901 * @crtc: the CRTC whose primary plane was just enabled
4903 * Performs potentially sleeping operations that must be done after the primary
4904 * plane is enabled, such as updating FBC and IPS. Note that this may be
4905 * called due to an explicit primary plane update, or due to an implicit
4906 * re-enable that is caused when a sprite plane is updated to no longer
4907 * completely hide the primary plane.
4910 intel_post_enable_primary(struct drm_crtc
*crtc
)
4912 struct drm_device
*dev
= crtc
->dev
;
4913 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4914 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4915 int pipe
= intel_crtc
->pipe
;
4918 * FIXME IPS should be fine as long as one plane is
4919 * enabled, but in practice it seems to have problems
4920 * when going from primary only to sprite only and vice
4923 hsw_enable_ips(intel_crtc
);
4926 * Gen2 reports pipe underruns whenever all planes are disabled.
4927 * So don't enable underrun reporting before at least some planes
4929 * FIXME: Need to fix the logic to work when we turn off all planes
4930 * but leave the pipe running.
4932 if (IS_GEN2(dev_priv
))
4933 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
4935 /* Underruns don't always raise interrupts, so check manually. */
4936 intel_check_cpu_fifo_underruns(dev_priv
);
4937 intel_check_pch_fifo_underruns(dev_priv
);
4940 /* FIXME move all this to pre_plane_update() with proper state tracking */
4942 intel_pre_disable_primary(struct drm_crtc
*crtc
)
4944 struct drm_device
*dev
= crtc
->dev
;
4945 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4946 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4947 int pipe
= intel_crtc
->pipe
;
4950 * Gen2 reports pipe underruns whenever all planes are disabled.
4951 * So diasble underrun reporting before all the planes get disabled.
4952 * FIXME: Need to fix the logic to work when we turn off all planes
4953 * but leave the pipe running.
4955 if (IS_GEN2(dev_priv
))
4956 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, false);
4959 * FIXME IPS should be fine as long as one plane is
4960 * enabled, but in practice it seems to have problems
4961 * when going from primary only to sprite only and vice
4964 hsw_disable_ips(intel_crtc
);
4967 /* FIXME get rid of this and use pre_plane_update */
4969 intel_pre_disable_primary_noatomic(struct drm_crtc
*crtc
)
4971 struct drm_device
*dev
= crtc
->dev
;
4972 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4973 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4974 int pipe
= intel_crtc
->pipe
;
4976 intel_pre_disable_primary(crtc
);
4979 * Vblank time updates from the shadow to live plane control register
4980 * are blocked if the memory self-refresh mode is active at that
4981 * moment. So to make sure the plane gets truly disabled, disable
4982 * first the self-refresh mode. The self-refresh enable bit in turn
4983 * will be checked/applied by the HW only at the next frame start
4984 * event which is after the vblank start event, so we need to have a
4985 * wait-for-vblank between disabling the plane and the pipe.
4987 if (HAS_GMCH_DISPLAY(dev_priv
) &&
4988 intel_set_memory_cxsr(dev_priv
, false))
4989 intel_wait_for_vblank(dev_priv
, pipe
);
4992 static void intel_post_plane_update(struct intel_crtc_state
*old_crtc_state
)
4994 struct intel_crtc
*crtc
= to_intel_crtc(old_crtc_state
->base
.crtc
);
4995 struct drm_atomic_state
*old_state
= old_crtc_state
->base
.state
;
4996 struct intel_crtc_state
*pipe_config
=
4997 to_intel_crtc_state(crtc
->base
.state
);
4998 struct drm_plane
*primary
= crtc
->base
.primary
;
4999 struct drm_plane_state
*old_pri_state
=
5000 drm_atomic_get_existing_plane_state(old_state
, primary
);
5002 intel_frontbuffer_flip(to_i915(crtc
->base
.dev
), pipe_config
->fb_bits
);
5004 if (pipe_config
->update_wm_post
&& pipe_config
->base
.active
)
5005 intel_update_watermarks(crtc
);
5007 if (old_pri_state
) {
5008 struct intel_plane_state
*primary_state
=
5009 to_intel_plane_state(primary
->state
);
5010 struct intel_plane_state
*old_primary_state
=
5011 to_intel_plane_state(old_pri_state
);
5013 intel_fbc_post_update(crtc
);
5015 if (primary_state
->base
.visible
&&
5016 (needs_modeset(&pipe_config
->base
) ||
5017 !old_primary_state
->base
.visible
))
5018 intel_post_enable_primary(&crtc
->base
);
5022 static void intel_pre_plane_update(struct intel_crtc_state
*old_crtc_state
,
5023 struct intel_crtc_state
*pipe_config
)
5025 struct intel_crtc
*crtc
= to_intel_crtc(old_crtc_state
->base
.crtc
);
5026 struct drm_device
*dev
= crtc
->base
.dev
;
5027 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5028 struct drm_atomic_state
*old_state
= old_crtc_state
->base
.state
;
5029 struct drm_plane
*primary
= crtc
->base
.primary
;
5030 struct drm_plane_state
*old_pri_state
=
5031 drm_atomic_get_existing_plane_state(old_state
, primary
);
5032 bool modeset
= needs_modeset(&pipe_config
->base
);
5033 struct intel_atomic_state
*old_intel_state
=
5034 to_intel_atomic_state(old_state
);
5036 if (old_pri_state
) {
5037 struct intel_plane_state
*primary_state
=
5038 to_intel_plane_state(primary
->state
);
5039 struct intel_plane_state
*old_primary_state
=
5040 to_intel_plane_state(old_pri_state
);
5042 intel_fbc_pre_update(crtc
, pipe_config
, primary_state
);
5044 if (old_primary_state
->base
.visible
&&
5045 (modeset
|| !primary_state
->base
.visible
))
5046 intel_pre_disable_primary(&crtc
->base
);
5050 * Vblank time updates from the shadow to live plane control register
5051 * are blocked if the memory self-refresh mode is active at that
5052 * moment. So to make sure the plane gets truly disabled, disable
5053 * first the self-refresh mode. The self-refresh enable bit in turn
5054 * will be checked/applied by the HW only at the next frame start
5055 * event which is after the vblank start event, so we need to have a
5056 * wait-for-vblank between disabling the plane and the pipe.
5058 if (HAS_GMCH_DISPLAY(dev_priv
) && old_crtc_state
->base
.active
&&
5059 pipe_config
->disable_cxsr
&& intel_set_memory_cxsr(dev_priv
, false))
5060 intel_wait_for_vblank(dev_priv
, crtc
->pipe
);
5063 * IVB workaround: must disable low power watermarks for at least
5064 * one frame before enabling scaling. LP watermarks can be re-enabled
5065 * when scaling is disabled.
5067 * WaCxSRDisabledForSpriteScaling:ivb
5069 if (pipe_config
->disable_lp_wm
&& ilk_disable_lp_wm(dev
))
5070 intel_wait_for_vblank(dev_priv
, crtc
->pipe
);
5073 * If we're doing a modeset, we're done. No need to do any pre-vblank
5074 * watermark programming here.
5076 if (needs_modeset(&pipe_config
->base
))
5080 * For platforms that support atomic watermarks, program the
5081 * 'intermediate' watermarks immediately. On pre-gen9 platforms, these
5082 * will be the intermediate values that are safe for both pre- and
5083 * post- vblank; when vblank happens, the 'active' values will be set
5084 * to the final 'target' values and we'll do this again to get the
5085 * optimal watermarks. For gen9+ platforms, the values we program here
5086 * will be the final target values which will get automatically latched
5087 * at vblank time; no further programming will be necessary.
5089 * If a platform hasn't been transitioned to atomic watermarks yet,
5090 * we'll continue to update watermarks the old way, if flags tell
5093 if (dev_priv
->display
.initial_watermarks
!= NULL
)
5094 dev_priv
->display
.initial_watermarks(old_intel_state
,
5096 else if (pipe_config
->update_wm_pre
)
5097 intel_update_watermarks(crtc
);
5100 static void intel_crtc_disable_planes(struct drm_crtc
*crtc
, unsigned plane_mask
)
5102 struct drm_device
*dev
= crtc
->dev
;
5103 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5104 struct drm_plane
*p
;
5105 int pipe
= intel_crtc
->pipe
;
5107 intel_crtc_dpms_overlay_disable(intel_crtc
);
5109 drm_for_each_plane_mask(p
, dev
, plane_mask
)
5110 to_intel_plane(p
)->disable_plane(to_intel_plane(p
), intel_crtc
);
5113 * FIXME: Once we grow proper nuclear flip support out of this we need
5114 * to compute the mask of flip planes precisely. For the time being
5115 * consider this a flip to a NULL plane.
5117 intel_frontbuffer_flip(to_i915(dev
), INTEL_FRONTBUFFER_ALL_MASK(pipe
));
5120 static void intel_encoders_pre_pll_enable(struct drm_crtc
*crtc
,
5121 struct intel_crtc_state
*crtc_state
,
5122 struct drm_atomic_state
*old_state
)
5124 struct drm_connector_state
*conn_state
;
5125 struct drm_connector
*conn
;
5128 for_each_new_connector_in_state(old_state
, conn
, conn_state
, i
) {
5129 struct intel_encoder
*encoder
=
5130 to_intel_encoder(conn_state
->best_encoder
);
5132 if (conn_state
->crtc
!= crtc
)
5135 if (encoder
->pre_pll_enable
)
5136 encoder
->pre_pll_enable(encoder
, crtc_state
, conn_state
);
5140 static void intel_encoders_pre_enable(struct drm_crtc
*crtc
,
5141 struct intel_crtc_state
*crtc_state
,
5142 struct drm_atomic_state
*old_state
)
5144 struct drm_connector_state
*conn_state
;
5145 struct drm_connector
*conn
;
5148 for_each_new_connector_in_state(old_state
, conn
, conn_state
, i
) {
5149 struct intel_encoder
*encoder
=
5150 to_intel_encoder(conn_state
->best_encoder
);
5152 if (conn_state
->crtc
!= crtc
)
5155 if (encoder
->pre_enable
)
5156 encoder
->pre_enable(encoder
, crtc_state
, conn_state
);
5160 static void intel_encoders_enable(struct drm_crtc
*crtc
,
5161 struct intel_crtc_state
*crtc_state
,
5162 struct drm_atomic_state
*old_state
)
5164 struct drm_connector_state
*conn_state
;
5165 struct drm_connector
*conn
;
5168 for_each_new_connector_in_state(old_state
, conn
, conn_state
, i
) {
5169 struct intel_encoder
*encoder
=
5170 to_intel_encoder(conn_state
->best_encoder
);
5172 if (conn_state
->crtc
!= crtc
)
5175 encoder
->enable(encoder
, crtc_state
, conn_state
);
5176 intel_opregion_notify_encoder(encoder
, true);
5180 static void intel_encoders_disable(struct drm_crtc
*crtc
,
5181 struct intel_crtc_state
*old_crtc_state
,
5182 struct drm_atomic_state
*old_state
)
5184 struct drm_connector_state
*old_conn_state
;
5185 struct drm_connector
*conn
;
5188 for_each_old_connector_in_state(old_state
, conn
, old_conn_state
, i
) {
5189 struct intel_encoder
*encoder
=
5190 to_intel_encoder(old_conn_state
->best_encoder
);
5192 if (old_conn_state
->crtc
!= crtc
)
5195 intel_opregion_notify_encoder(encoder
, false);
5196 encoder
->disable(encoder
, old_crtc_state
, old_conn_state
);
5200 static void intel_encoders_post_disable(struct drm_crtc
*crtc
,
5201 struct intel_crtc_state
*old_crtc_state
,
5202 struct drm_atomic_state
*old_state
)
5204 struct drm_connector_state
*old_conn_state
;
5205 struct drm_connector
*conn
;
5208 for_each_old_connector_in_state(old_state
, conn
, old_conn_state
, i
) {
5209 struct intel_encoder
*encoder
=
5210 to_intel_encoder(old_conn_state
->best_encoder
);
5212 if (old_conn_state
->crtc
!= crtc
)
5215 if (encoder
->post_disable
)
5216 encoder
->post_disable(encoder
, old_crtc_state
, old_conn_state
);
5220 static void intel_encoders_post_pll_disable(struct drm_crtc
*crtc
,
5221 struct intel_crtc_state
*old_crtc_state
,
5222 struct drm_atomic_state
*old_state
)
5224 struct drm_connector_state
*old_conn_state
;
5225 struct drm_connector
*conn
;
5228 for_each_old_connector_in_state(old_state
, conn
, old_conn_state
, i
) {
5229 struct intel_encoder
*encoder
=
5230 to_intel_encoder(old_conn_state
->best_encoder
);
5232 if (old_conn_state
->crtc
!= crtc
)
5235 if (encoder
->post_pll_disable
)
5236 encoder
->post_pll_disable(encoder
, old_crtc_state
, old_conn_state
);
5240 static void ironlake_crtc_enable(struct intel_crtc_state
*pipe_config
,
5241 struct drm_atomic_state
*old_state
)
5243 struct drm_crtc
*crtc
= pipe_config
->base
.crtc
;
5244 struct drm_device
*dev
= crtc
->dev
;
5245 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5246 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5247 int pipe
= intel_crtc
->pipe
;
5248 struct intel_atomic_state
*old_intel_state
=
5249 to_intel_atomic_state(old_state
);
5251 if (WARN_ON(intel_crtc
->active
))
5255 * Sometimes spurious CPU pipe underruns happen during FDI
5256 * training, at least with VGA+HDMI cloning. Suppress them.
5258 * On ILK we get an occasional spurious CPU pipe underruns
5259 * between eDP port A enable and vdd enable. Also PCH port
5260 * enable seems to result in the occasional CPU pipe underrun.
5262 * Spurious PCH underruns also occur during PCH enabling.
5264 if (intel_crtc
->config
->has_pch_encoder
|| IS_GEN5(dev_priv
))
5265 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, false);
5266 if (intel_crtc
->config
->has_pch_encoder
)
5267 intel_set_pch_fifo_underrun_reporting(dev_priv
, pipe
, false);
5269 if (intel_crtc
->config
->has_pch_encoder
)
5270 intel_prepare_shared_dpll(intel_crtc
);
5272 if (intel_crtc_has_dp_encoder(intel_crtc
->config
))
5273 intel_dp_set_m_n(intel_crtc
, M1_N1
);
5275 intel_set_pipe_timings(intel_crtc
);
5276 intel_set_pipe_src_size(intel_crtc
);
5278 if (intel_crtc
->config
->has_pch_encoder
) {
5279 intel_cpu_transcoder_set_m_n(intel_crtc
,
5280 &intel_crtc
->config
->fdi_m_n
, NULL
);
5283 ironlake_set_pipeconf(crtc
);
5285 intel_crtc
->active
= true;
5287 intel_encoders_pre_enable(crtc
, pipe_config
, old_state
);
5289 if (intel_crtc
->config
->has_pch_encoder
) {
5290 /* Note: FDI PLL enabling _must_ be done before we enable the
5291 * cpu pipes, hence this is separate from all the other fdi/pch
5293 ironlake_fdi_pll_enable(intel_crtc
);
5295 assert_fdi_tx_disabled(dev_priv
, pipe
);
5296 assert_fdi_rx_disabled(dev_priv
, pipe
);
5299 ironlake_pfit_enable(intel_crtc
);
5302 * On ILK+ LUT must be loaded before the pipe is running but with
5305 intel_color_load_luts(&pipe_config
->base
);
5307 if (dev_priv
->display
.initial_watermarks
!= NULL
)
5308 dev_priv
->display
.initial_watermarks(old_intel_state
, intel_crtc
->config
);
5309 intel_enable_pipe(intel_crtc
);
5311 if (intel_crtc
->config
->has_pch_encoder
)
5312 ironlake_pch_enable(pipe_config
);
5314 assert_vblank_disabled(crtc
);
5315 drm_crtc_vblank_on(crtc
);
5317 intel_encoders_enable(crtc
, pipe_config
, old_state
);
5319 if (HAS_PCH_CPT(dev_priv
))
5320 cpt_verify_modeset(dev
, intel_crtc
->pipe
);
5322 /* Must wait for vblank to avoid spurious PCH FIFO underruns */
5323 if (intel_crtc
->config
->has_pch_encoder
)
5324 intel_wait_for_vblank(dev_priv
, pipe
);
5325 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5326 intel_set_pch_fifo_underrun_reporting(dev_priv
, pipe
, true);
5329 /* IPS only exists on ULT machines and is tied to pipe A. */
5330 static bool hsw_crtc_supports_ips(struct intel_crtc
*crtc
)
5332 return HAS_IPS(to_i915(crtc
->base
.dev
)) && crtc
->pipe
== PIPE_A
;
5335 static void haswell_crtc_enable(struct intel_crtc_state
*pipe_config
,
5336 struct drm_atomic_state
*old_state
)
5338 struct drm_crtc
*crtc
= pipe_config
->base
.crtc
;
5339 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
5340 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5341 int pipe
= intel_crtc
->pipe
, hsw_workaround_pipe
;
5342 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
5343 struct intel_atomic_state
*old_intel_state
=
5344 to_intel_atomic_state(old_state
);
5346 if (WARN_ON(intel_crtc
->active
))
5349 if (intel_crtc
->config
->has_pch_encoder
)
5350 intel_set_pch_fifo_underrun_reporting(dev_priv
, TRANSCODER_A
,
5353 intel_encoders_pre_pll_enable(crtc
, pipe_config
, old_state
);
5355 if (intel_crtc
->config
->shared_dpll
)
5356 intel_enable_shared_dpll(intel_crtc
);
5358 if (intel_crtc_has_dp_encoder(intel_crtc
->config
))
5359 intel_dp_set_m_n(intel_crtc
, M1_N1
);
5361 if (!transcoder_is_dsi(cpu_transcoder
))
5362 intel_set_pipe_timings(intel_crtc
);
5364 intel_set_pipe_src_size(intel_crtc
);
5366 if (cpu_transcoder
!= TRANSCODER_EDP
&&
5367 !transcoder_is_dsi(cpu_transcoder
)) {
5368 I915_WRITE(PIPE_MULT(cpu_transcoder
),
5369 intel_crtc
->config
->pixel_multiplier
- 1);
5372 if (intel_crtc
->config
->has_pch_encoder
) {
5373 intel_cpu_transcoder_set_m_n(intel_crtc
,
5374 &intel_crtc
->config
->fdi_m_n
, NULL
);
5377 if (!transcoder_is_dsi(cpu_transcoder
))
5378 haswell_set_pipeconf(crtc
);
5380 haswell_set_pipemisc(crtc
);
5382 intel_color_set_csc(&pipe_config
->base
);
5384 intel_crtc
->active
= true;
5386 if (intel_crtc
->config
->has_pch_encoder
)
5387 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, false);
5389 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5391 intel_encoders_pre_enable(crtc
, pipe_config
, old_state
);
5393 if (intel_crtc
->config
->has_pch_encoder
)
5394 dev_priv
->display
.fdi_link_train(intel_crtc
, pipe_config
);
5396 if (!transcoder_is_dsi(cpu_transcoder
))
5397 intel_ddi_enable_pipe_clock(pipe_config
);
5399 if (INTEL_GEN(dev_priv
) >= 9)
5400 skylake_pfit_enable(intel_crtc
);
5402 ironlake_pfit_enable(intel_crtc
);
5405 * On ILK+ LUT must be loaded before the pipe is running but with
5408 intel_color_load_luts(&pipe_config
->base
);
5410 intel_ddi_set_pipe_settings(pipe_config
);
5411 if (!transcoder_is_dsi(cpu_transcoder
))
5412 intel_ddi_enable_transcoder_func(pipe_config
);
5414 if (dev_priv
->display
.initial_watermarks
!= NULL
)
5415 dev_priv
->display
.initial_watermarks(old_intel_state
, pipe_config
);
5417 /* XXX: Do the pipe assertions at the right place for BXT DSI. */
5418 if (!transcoder_is_dsi(cpu_transcoder
))
5419 intel_enable_pipe(intel_crtc
);
5421 if (intel_crtc
->config
->has_pch_encoder
)
5422 lpt_pch_enable(pipe_config
);
5424 if (intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_DP_MST
))
5425 intel_ddi_set_vc_payload_alloc(pipe_config
, true);
5427 assert_vblank_disabled(crtc
);
5428 drm_crtc_vblank_on(crtc
);
5430 intel_encoders_enable(crtc
, pipe_config
, old_state
);
5432 if (intel_crtc
->config
->has_pch_encoder
) {
5433 intel_wait_for_vblank(dev_priv
, pipe
);
5434 intel_wait_for_vblank(dev_priv
, pipe
);
5435 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5436 intel_set_pch_fifo_underrun_reporting(dev_priv
, TRANSCODER_A
,
5440 /* If we change the relative order between pipe/planes enabling, we need
5441 * to change the workaround. */
5442 hsw_workaround_pipe
= pipe_config
->hsw_workaround_pipe
;
5443 if (IS_HASWELL(dev_priv
) && hsw_workaround_pipe
!= INVALID_PIPE
) {
5444 intel_wait_for_vblank(dev_priv
, hsw_workaround_pipe
);
5445 intel_wait_for_vblank(dev_priv
, hsw_workaround_pipe
);
5449 static void ironlake_pfit_disable(struct intel_crtc
*crtc
, bool force
)
5451 struct drm_device
*dev
= crtc
->base
.dev
;
5452 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5453 int pipe
= crtc
->pipe
;
5455 /* To avoid upsetting the power well on haswell only disable the pfit if
5456 * it's in use. The hw state code will make sure we get this right. */
5457 if (force
|| crtc
->config
->pch_pfit
.enabled
) {
5458 I915_WRITE(PF_CTL(pipe
), 0);
5459 I915_WRITE(PF_WIN_POS(pipe
), 0);
5460 I915_WRITE(PF_WIN_SZ(pipe
), 0);
5464 static void ironlake_crtc_disable(struct intel_crtc_state
*old_crtc_state
,
5465 struct drm_atomic_state
*old_state
)
5467 struct drm_crtc
*crtc
= old_crtc_state
->base
.crtc
;
5468 struct drm_device
*dev
= crtc
->dev
;
5469 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5470 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5471 int pipe
= intel_crtc
->pipe
;
5474 * Sometimes spurious CPU pipe underruns happen when the
5475 * pipe is already disabled, but FDI RX/TX is still enabled.
5476 * Happens at least with VGA+HDMI cloning. Suppress them.
5478 if (intel_crtc
->config
->has_pch_encoder
) {
5479 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, false);
5480 intel_set_pch_fifo_underrun_reporting(dev_priv
, pipe
, false);
5483 intel_encoders_disable(crtc
, old_crtc_state
, old_state
);
5485 drm_crtc_vblank_off(crtc
);
5486 assert_vblank_disabled(crtc
);
5488 intel_disable_pipe(intel_crtc
);
5490 ironlake_pfit_disable(intel_crtc
, false);
5492 if (intel_crtc
->config
->has_pch_encoder
)
5493 ironlake_fdi_disable(crtc
);
5495 intel_encoders_post_disable(crtc
, old_crtc_state
, old_state
);
5497 if (intel_crtc
->config
->has_pch_encoder
) {
5498 ironlake_disable_pch_transcoder(dev_priv
, pipe
);
5500 if (HAS_PCH_CPT(dev_priv
)) {
5504 /* disable TRANS_DP_CTL */
5505 reg
= TRANS_DP_CTL(pipe
);
5506 temp
= I915_READ(reg
);
5507 temp
&= ~(TRANS_DP_OUTPUT_ENABLE
|
5508 TRANS_DP_PORT_SEL_MASK
);
5509 temp
|= TRANS_DP_PORT_SEL_NONE
;
5510 I915_WRITE(reg
, temp
);
5512 /* disable DPLL_SEL */
5513 temp
= I915_READ(PCH_DPLL_SEL
);
5514 temp
&= ~(TRANS_DPLL_ENABLE(pipe
) | TRANS_DPLLB_SEL(pipe
));
5515 I915_WRITE(PCH_DPLL_SEL
, temp
);
5518 ironlake_fdi_pll_disable(intel_crtc
);
5521 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5522 intel_set_pch_fifo_underrun_reporting(dev_priv
, pipe
, true);
5525 static void haswell_crtc_disable(struct intel_crtc_state
*old_crtc_state
,
5526 struct drm_atomic_state
*old_state
)
5528 struct drm_crtc
*crtc
= old_crtc_state
->base
.crtc
;
5529 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
5530 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5531 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
5533 if (intel_crtc
->config
->has_pch_encoder
)
5534 intel_set_pch_fifo_underrun_reporting(dev_priv
, TRANSCODER_A
,
5537 intel_encoders_disable(crtc
, old_crtc_state
, old_state
);
5539 drm_crtc_vblank_off(crtc
);
5540 assert_vblank_disabled(crtc
);
5542 /* XXX: Do the pipe assertions at the right place for BXT DSI. */
5543 if (!transcoder_is_dsi(cpu_transcoder
))
5544 intel_disable_pipe(intel_crtc
);
5546 if (intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_DP_MST
))
5547 intel_ddi_set_vc_payload_alloc(intel_crtc
->config
, false);
5549 if (!transcoder_is_dsi(cpu_transcoder
))
5550 intel_ddi_disable_transcoder_func(dev_priv
, cpu_transcoder
);
5552 if (INTEL_GEN(dev_priv
) >= 9)
5553 skylake_scaler_disable(intel_crtc
);
5555 ironlake_pfit_disable(intel_crtc
, false);
5557 if (!transcoder_is_dsi(cpu_transcoder
))
5558 intel_ddi_disable_pipe_clock(intel_crtc
->config
);
5560 intel_encoders_post_disable(crtc
, old_crtc_state
, old_state
);
5562 if (old_crtc_state
->has_pch_encoder
)
5563 intel_set_pch_fifo_underrun_reporting(dev_priv
, TRANSCODER_A
,
5567 static void i9xx_pfit_enable(struct intel_crtc
*crtc
)
5569 struct drm_device
*dev
= crtc
->base
.dev
;
5570 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5571 struct intel_crtc_state
*pipe_config
= crtc
->config
;
5573 if (!pipe_config
->gmch_pfit
.control
)
5577 * The panel fitter should only be adjusted whilst the pipe is disabled,
5578 * according to register description and PRM.
5580 WARN_ON(I915_READ(PFIT_CONTROL
) & PFIT_ENABLE
);
5581 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
5583 I915_WRITE(PFIT_PGM_RATIOS
, pipe_config
->gmch_pfit
.pgm_ratios
);
5584 I915_WRITE(PFIT_CONTROL
, pipe_config
->gmch_pfit
.control
);
5586 /* Border color in case we don't scale up to the full screen. Black by
5587 * default, change to something else for debugging. */
5588 I915_WRITE(BCLRPAT(crtc
->pipe
), 0);
5591 enum intel_display_power_domain
intel_port_to_power_domain(enum port port
)
5595 return POWER_DOMAIN_PORT_DDI_A_LANES
;
5597 return POWER_DOMAIN_PORT_DDI_B_LANES
;
5599 return POWER_DOMAIN_PORT_DDI_C_LANES
;
5601 return POWER_DOMAIN_PORT_DDI_D_LANES
;
5603 return POWER_DOMAIN_PORT_DDI_E_LANES
;
5606 return POWER_DOMAIN_PORT_OTHER
;
5610 static u64
get_crtc_power_domains(struct drm_crtc
*crtc
,
5611 struct intel_crtc_state
*crtc_state
)
5613 struct drm_device
*dev
= crtc
->dev
;
5614 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5615 struct drm_encoder
*encoder
;
5616 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5617 enum pipe pipe
= intel_crtc
->pipe
;
5619 enum transcoder transcoder
= crtc_state
->cpu_transcoder
;
5621 if (!crtc_state
->base
.active
)
5624 mask
= BIT(POWER_DOMAIN_PIPE(pipe
));
5625 mask
|= BIT(POWER_DOMAIN_TRANSCODER(transcoder
));
5626 if (crtc_state
->pch_pfit
.enabled
||
5627 crtc_state
->pch_pfit
.force_thru
)
5628 mask
|= BIT_ULL(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe
));
5630 drm_for_each_encoder_mask(encoder
, dev
, crtc_state
->base
.encoder_mask
) {
5631 struct intel_encoder
*intel_encoder
= to_intel_encoder(encoder
);
5633 mask
|= BIT_ULL(intel_encoder
->power_domain
);
5636 if (HAS_DDI(dev_priv
) && crtc_state
->has_audio
)
5637 mask
|= BIT(POWER_DOMAIN_AUDIO
);
5639 if (crtc_state
->shared_dpll
)
5640 mask
|= BIT_ULL(POWER_DOMAIN_PLLS
);
5646 modeset_get_crtc_power_domains(struct drm_crtc
*crtc
,
5647 struct intel_crtc_state
*crtc_state
)
5649 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
5650 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5651 enum intel_display_power_domain domain
;
5652 u64 domains
, new_domains
, old_domains
;
5654 old_domains
= intel_crtc
->enabled_power_domains
;
5655 intel_crtc
->enabled_power_domains
= new_domains
=
5656 get_crtc_power_domains(crtc
, crtc_state
);
5658 domains
= new_domains
& ~old_domains
;
5660 for_each_power_domain(domain
, domains
)
5661 intel_display_power_get(dev_priv
, domain
);
5663 return old_domains
& ~new_domains
;
5666 static void modeset_put_power_domains(struct drm_i915_private
*dev_priv
,
5669 enum intel_display_power_domain domain
;
5671 for_each_power_domain(domain
, domains
)
5672 intel_display_power_put(dev_priv
, domain
);
5675 static void valleyview_crtc_enable(struct intel_crtc_state
*pipe_config
,
5676 struct drm_atomic_state
*old_state
)
5678 struct intel_atomic_state
*old_intel_state
=
5679 to_intel_atomic_state(old_state
);
5680 struct drm_crtc
*crtc
= pipe_config
->base
.crtc
;
5681 struct drm_device
*dev
= crtc
->dev
;
5682 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5683 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5684 int pipe
= intel_crtc
->pipe
;
5686 if (WARN_ON(intel_crtc
->active
))
5689 if (intel_crtc_has_dp_encoder(intel_crtc
->config
))
5690 intel_dp_set_m_n(intel_crtc
, M1_N1
);
5692 intel_set_pipe_timings(intel_crtc
);
5693 intel_set_pipe_src_size(intel_crtc
);
5695 if (IS_CHERRYVIEW(dev_priv
) && pipe
== PIPE_B
) {
5696 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5698 I915_WRITE(CHV_BLEND(pipe
), CHV_BLEND_LEGACY
);
5699 I915_WRITE(CHV_CANVAS(pipe
), 0);
5702 i9xx_set_pipeconf(intel_crtc
);
5704 intel_crtc
->active
= true;
5706 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5708 intel_encoders_pre_pll_enable(crtc
, pipe_config
, old_state
);
5710 if (IS_CHERRYVIEW(dev_priv
)) {
5711 chv_prepare_pll(intel_crtc
, intel_crtc
->config
);
5712 chv_enable_pll(intel_crtc
, intel_crtc
->config
);
5714 vlv_prepare_pll(intel_crtc
, intel_crtc
->config
);
5715 vlv_enable_pll(intel_crtc
, intel_crtc
->config
);
5718 intel_encoders_pre_enable(crtc
, pipe_config
, old_state
);
5720 i9xx_pfit_enable(intel_crtc
);
5722 intel_color_load_luts(&pipe_config
->base
);
5724 dev_priv
->display
.initial_watermarks(old_intel_state
,
5726 intel_enable_pipe(intel_crtc
);
5728 assert_vblank_disabled(crtc
);
5729 drm_crtc_vblank_on(crtc
);
5731 intel_encoders_enable(crtc
, pipe_config
, old_state
);
5734 static void i9xx_set_pll_dividers(struct intel_crtc
*crtc
)
5736 struct drm_device
*dev
= crtc
->base
.dev
;
5737 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5739 I915_WRITE(FP0(crtc
->pipe
), crtc
->config
->dpll_hw_state
.fp0
);
5740 I915_WRITE(FP1(crtc
->pipe
), crtc
->config
->dpll_hw_state
.fp1
);
5743 static void i9xx_crtc_enable(struct intel_crtc_state
*pipe_config
,
5744 struct drm_atomic_state
*old_state
)
5746 struct intel_atomic_state
*old_intel_state
=
5747 to_intel_atomic_state(old_state
);
5748 struct drm_crtc
*crtc
= pipe_config
->base
.crtc
;
5749 struct drm_device
*dev
= crtc
->dev
;
5750 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5751 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5752 enum pipe pipe
= intel_crtc
->pipe
;
5754 if (WARN_ON(intel_crtc
->active
))
5757 i9xx_set_pll_dividers(intel_crtc
);
5759 if (intel_crtc_has_dp_encoder(intel_crtc
->config
))
5760 intel_dp_set_m_n(intel_crtc
, M1_N1
);
5762 intel_set_pipe_timings(intel_crtc
);
5763 intel_set_pipe_src_size(intel_crtc
);
5765 i9xx_set_pipeconf(intel_crtc
);
5767 intel_crtc
->active
= true;
5769 if (!IS_GEN2(dev_priv
))
5770 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5772 intel_encoders_pre_enable(crtc
, pipe_config
, old_state
);
5774 i9xx_enable_pll(intel_crtc
);
5776 i9xx_pfit_enable(intel_crtc
);
5778 intel_color_load_luts(&pipe_config
->base
);
5780 if (dev_priv
->display
.initial_watermarks
!= NULL
)
5781 dev_priv
->display
.initial_watermarks(old_intel_state
,
5782 intel_crtc
->config
);
5784 intel_update_watermarks(intel_crtc
);
5785 intel_enable_pipe(intel_crtc
);
5787 assert_vblank_disabled(crtc
);
5788 drm_crtc_vblank_on(crtc
);
5790 intel_encoders_enable(crtc
, pipe_config
, old_state
);
5793 static void i9xx_pfit_disable(struct intel_crtc
*crtc
)
5795 struct drm_device
*dev
= crtc
->base
.dev
;
5796 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5798 if (!crtc
->config
->gmch_pfit
.control
)
5801 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
5803 DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n",
5804 I915_READ(PFIT_CONTROL
));
5805 I915_WRITE(PFIT_CONTROL
, 0);
5808 static void i9xx_crtc_disable(struct intel_crtc_state
*old_crtc_state
,
5809 struct drm_atomic_state
*old_state
)
5811 struct drm_crtc
*crtc
= old_crtc_state
->base
.crtc
;
5812 struct drm_device
*dev
= crtc
->dev
;
5813 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5814 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5815 int pipe
= intel_crtc
->pipe
;
5818 * On gen2 planes are double buffered but the pipe isn't, so we must
5819 * wait for planes to fully turn off before disabling the pipe.
5821 if (IS_GEN2(dev_priv
))
5822 intel_wait_for_vblank(dev_priv
, pipe
);
5824 intel_encoders_disable(crtc
, old_crtc_state
, old_state
);
5826 drm_crtc_vblank_off(crtc
);
5827 assert_vblank_disabled(crtc
);
5829 intel_disable_pipe(intel_crtc
);
5831 i9xx_pfit_disable(intel_crtc
);
5833 intel_encoders_post_disable(crtc
, old_crtc_state
, old_state
);
5835 if (!intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_DSI
)) {
5836 if (IS_CHERRYVIEW(dev_priv
))
5837 chv_disable_pll(dev_priv
, pipe
);
5838 else if (IS_VALLEYVIEW(dev_priv
))
5839 vlv_disable_pll(dev_priv
, pipe
);
5841 i9xx_disable_pll(intel_crtc
);
5844 intel_encoders_post_pll_disable(crtc
, old_crtc_state
, old_state
);
5846 if (!IS_GEN2(dev_priv
))
5847 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, false);
5849 if (!dev_priv
->display
.initial_watermarks
)
5850 intel_update_watermarks(intel_crtc
);
5852 /* clock the pipe down to 640x480@60 to potentially save power */
5853 if (IS_I830(dev_priv
))
5854 i830_enable_pipe(dev_priv
, pipe
);
5857 static void intel_crtc_disable_noatomic(struct drm_crtc
*crtc
,
5858 struct drm_modeset_acquire_ctx
*ctx
)
5860 struct intel_encoder
*encoder
;
5861 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5862 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
5863 enum intel_display_power_domain domain
;
5865 struct drm_atomic_state
*state
;
5866 struct intel_crtc_state
*crtc_state
;
5869 if (!intel_crtc
->active
)
5872 if (crtc
->primary
->state
->visible
) {
5873 WARN_ON(intel_crtc
->flip_work
);
5875 intel_pre_disable_primary_noatomic(crtc
);
5877 intel_crtc_disable_planes(crtc
, 1 << drm_plane_index(crtc
->primary
));
5878 crtc
->primary
->state
->visible
= false;
5881 state
= drm_atomic_state_alloc(crtc
->dev
);
5883 DRM_DEBUG_KMS("failed to disable [CRTC:%d:%s], out of memory",
5884 crtc
->base
.id
, crtc
->name
);
5888 state
->acquire_ctx
= ctx
;
5890 /* Everything's already locked, -EDEADLK can't happen. */
5891 crtc_state
= intel_atomic_get_crtc_state(state
, intel_crtc
);
5892 ret
= drm_atomic_add_affected_connectors(state
, crtc
);
5894 WARN_ON(IS_ERR(crtc_state
) || ret
);
5896 dev_priv
->display
.crtc_disable(crtc_state
, state
);
5898 drm_atomic_state_put(state
);
5900 DRM_DEBUG_KMS("[CRTC:%d:%s] hw state adjusted, was enabled, now disabled\n",
5901 crtc
->base
.id
, crtc
->name
);
5903 WARN_ON(drm_atomic_set_mode_for_crtc(crtc
->state
, NULL
) < 0);
5904 crtc
->state
->active
= false;
5905 intel_crtc
->active
= false;
5906 crtc
->enabled
= false;
5907 crtc
->state
->connector_mask
= 0;
5908 crtc
->state
->encoder_mask
= 0;
5910 for_each_encoder_on_crtc(crtc
->dev
, crtc
, encoder
)
5911 encoder
->base
.crtc
= NULL
;
5913 intel_fbc_disable(intel_crtc
);
5914 intel_update_watermarks(intel_crtc
);
5915 intel_disable_shared_dpll(intel_crtc
);
5917 domains
= intel_crtc
->enabled_power_domains
;
5918 for_each_power_domain(domain
, domains
)
5919 intel_display_power_put(dev_priv
, domain
);
5920 intel_crtc
->enabled_power_domains
= 0;
5922 dev_priv
->active_crtcs
&= ~(1 << intel_crtc
->pipe
);
5923 dev_priv
->min_pixclk
[intel_crtc
->pipe
] = 0;
5927 * turn all crtc's off, but do not adjust state
5928 * This has to be paired with a call to intel_modeset_setup_hw_state.
5930 int intel_display_suspend(struct drm_device
*dev
)
5932 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5933 struct drm_atomic_state
*state
;
5936 state
= drm_atomic_helper_suspend(dev
);
5937 ret
= PTR_ERR_OR_ZERO(state
);
5939 DRM_ERROR("Suspending crtc's failed with %i\n", ret
);
5941 dev_priv
->modeset_restore_state
= state
;
5945 void intel_encoder_destroy(struct drm_encoder
*encoder
)
5947 struct intel_encoder
*intel_encoder
= to_intel_encoder(encoder
);
5949 drm_encoder_cleanup(encoder
);
5950 kfree(intel_encoder
);
5953 /* Cross check the actual hw state with our own modeset state tracking (and it's
5954 * internal consistency). */
5955 static void intel_connector_verify_state(struct drm_crtc_state
*crtc_state
,
5956 struct drm_connector_state
*conn_state
)
5958 struct intel_connector
*connector
= to_intel_connector(conn_state
->connector
);
5960 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
5961 connector
->base
.base
.id
,
5962 connector
->base
.name
);
5964 if (connector
->get_hw_state(connector
)) {
5965 struct intel_encoder
*encoder
= connector
->encoder
;
5967 I915_STATE_WARN(!crtc_state
,
5968 "connector enabled without attached crtc\n");
5973 I915_STATE_WARN(!crtc_state
->active
,
5974 "connector is active, but attached crtc isn't\n");
5976 if (!encoder
|| encoder
->type
== INTEL_OUTPUT_DP_MST
)
5979 I915_STATE_WARN(conn_state
->best_encoder
!= &encoder
->base
,
5980 "atomic encoder doesn't match attached encoder\n");
5982 I915_STATE_WARN(conn_state
->crtc
!= encoder
->base
.crtc
,
5983 "attached encoder crtc differs from connector crtc\n");
5985 I915_STATE_WARN(crtc_state
&& crtc_state
->active
,
5986 "attached crtc is active, but connector isn't\n");
5987 I915_STATE_WARN(!crtc_state
&& conn_state
->best_encoder
,
5988 "best encoder set without crtc!\n");
5992 int intel_connector_init(struct intel_connector
*connector
)
5994 struct intel_digital_connector_state
*conn_state
;
5997 * Allocate enough memory to hold intel_digital_connector_state,
5998 * This might be a few bytes too many, but for connectors that don't
5999 * need it we'll free the state and allocate a smaller one on the first
6000 * succesful commit anyway.
6002 conn_state
= kzalloc(sizeof(*conn_state
), GFP_KERNEL
);
6006 __drm_atomic_helper_connector_reset(&connector
->base
,
6012 struct intel_connector
*intel_connector_alloc(void)
6014 struct intel_connector
*connector
;
6016 connector
= kzalloc(sizeof *connector
, GFP_KERNEL
);
6020 if (intel_connector_init(connector
) < 0) {
6028 /* Simple connector->get_hw_state implementation for encoders that support only
6029 * one connector and no cloning and hence the encoder state determines the state
6030 * of the connector. */
6031 bool intel_connector_get_hw_state(struct intel_connector
*connector
)
6034 struct intel_encoder
*encoder
= connector
->encoder
;
6036 return encoder
->get_hw_state(encoder
, &pipe
);
6039 static int pipe_required_fdi_lanes(struct intel_crtc_state
*crtc_state
)
6041 if (crtc_state
->base
.enable
&& crtc_state
->has_pch_encoder
)
6042 return crtc_state
->fdi_lanes
;
6047 static int ironlake_check_fdi_lanes(struct drm_device
*dev
, enum pipe pipe
,
6048 struct intel_crtc_state
*pipe_config
)
6050 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6051 struct drm_atomic_state
*state
= pipe_config
->base
.state
;
6052 struct intel_crtc
*other_crtc
;
6053 struct intel_crtc_state
*other_crtc_state
;
6055 DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n",
6056 pipe_name(pipe
), pipe_config
->fdi_lanes
);
6057 if (pipe_config
->fdi_lanes
> 4) {
6058 DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n",
6059 pipe_name(pipe
), pipe_config
->fdi_lanes
);
6063 if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
)) {
6064 if (pipe_config
->fdi_lanes
> 2) {
6065 DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n",
6066 pipe_config
->fdi_lanes
);
6073 if (INTEL_INFO(dev_priv
)->num_pipes
== 2)
6076 /* Ivybridge 3 pipe is really complicated */
6081 if (pipe_config
->fdi_lanes
<= 2)
6084 other_crtc
= intel_get_crtc_for_pipe(dev_priv
, PIPE_C
);
6086 intel_atomic_get_crtc_state(state
, other_crtc
);
6087 if (IS_ERR(other_crtc_state
))
6088 return PTR_ERR(other_crtc_state
);
6090 if (pipe_required_fdi_lanes(other_crtc_state
) > 0) {
6091 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
6092 pipe_name(pipe
), pipe_config
->fdi_lanes
);
6097 if (pipe_config
->fdi_lanes
> 2) {
6098 DRM_DEBUG_KMS("only 2 lanes on pipe %c: required %i lanes\n",
6099 pipe_name(pipe
), pipe_config
->fdi_lanes
);
6103 other_crtc
= intel_get_crtc_for_pipe(dev_priv
, PIPE_B
);
6105 intel_atomic_get_crtc_state(state
, other_crtc
);
6106 if (IS_ERR(other_crtc_state
))
6107 return PTR_ERR(other_crtc_state
);
6109 if (pipe_required_fdi_lanes(other_crtc_state
) > 2) {
6110 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
6120 static int ironlake_fdi_compute_config(struct intel_crtc
*intel_crtc
,
6121 struct intel_crtc_state
*pipe_config
)
6123 struct drm_device
*dev
= intel_crtc
->base
.dev
;
6124 const struct drm_display_mode
*adjusted_mode
= &pipe_config
->base
.adjusted_mode
;
6125 int lane
, link_bw
, fdi_dotclock
, ret
;
6126 bool needs_recompute
= false;
6129 /* FDI is a binary signal running at ~2.7GHz, encoding
6130 * each output octet as 10 bits. The actual frequency
6131 * is stored as a divider into a 100MHz clock, and the
6132 * mode pixel clock is stored in units of 1KHz.
6133 * Hence the bw of each lane in terms of the mode signal
6136 link_bw
= intel_fdi_link_freq(to_i915(dev
), pipe_config
);
6138 fdi_dotclock
= adjusted_mode
->crtc_clock
;
6140 lane
= ironlake_get_lanes_required(fdi_dotclock
, link_bw
,
6141 pipe_config
->pipe_bpp
);
6143 pipe_config
->fdi_lanes
= lane
;
6145 intel_link_compute_m_n(pipe_config
->pipe_bpp
, lane
, fdi_dotclock
,
6146 link_bw
, &pipe_config
->fdi_m_n
, false);
6148 ret
= ironlake_check_fdi_lanes(dev
, intel_crtc
->pipe
, pipe_config
);
6149 if (ret
== -EINVAL
&& pipe_config
->pipe_bpp
> 6*3) {
6150 pipe_config
->pipe_bpp
-= 2*3;
6151 DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n",
6152 pipe_config
->pipe_bpp
);
6153 needs_recompute
= true;
6154 pipe_config
->bw_constrained
= true;
6159 if (needs_recompute
)
6165 static bool pipe_config_supports_ips(struct drm_i915_private
*dev_priv
,
6166 struct intel_crtc_state
*pipe_config
)
6168 if (pipe_config
->pipe_bpp
> 24)
6171 /* HSW can handle pixel rate up to cdclk? */
6172 if (IS_HASWELL(dev_priv
))
6176 * We compare against max which means we must take
6177 * the increased cdclk requirement into account when
6178 * calculating the new cdclk.
6180 * Should measure whether using a lower cdclk w/o IPS
6182 return pipe_config
->pixel_rate
<=
6183 dev_priv
->max_cdclk_freq
* 95 / 100;
6186 static void hsw_compute_ips_config(struct intel_crtc
*crtc
,
6187 struct intel_crtc_state
*pipe_config
)
6189 struct drm_device
*dev
= crtc
->base
.dev
;
6190 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6192 pipe_config
->ips_enabled
= i915
.enable_ips
&&
6193 hsw_crtc_supports_ips(crtc
) &&
6194 pipe_config_supports_ips(dev_priv
, pipe_config
);
6197 static bool intel_crtc_supports_double_wide(const struct intel_crtc
*crtc
)
6199 const struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
6201 /* GDG double wide on either pipe, otherwise pipe A only */
6202 return INTEL_INFO(dev_priv
)->gen
< 4 &&
6203 (crtc
->pipe
== PIPE_A
|| IS_I915G(dev_priv
));
6206 static uint32_t ilk_pipe_pixel_rate(const struct intel_crtc_state
*pipe_config
)
6208 uint32_t pixel_rate
;
6210 pixel_rate
= pipe_config
->base
.adjusted_mode
.crtc_clock
;
6213 * We only use IF-ID interlacing. If we ever use
6214 * PF-ID we'll need to adjust the pixel_rate here.
6217 if (pipe_config
->pch_pfit
.enabled
) {
6218 uint64_t pipe_w
, pipe_h
, pfit_w
, pfit_h
;
6219 uint32_t pfit_size
= pipe_config
->pch_pfit
.size
;
6221 pipe_w
= pipe_config
->pipe_src_w
;
6222 pipe_h
= pipe_config
->pipe_src_h
;
6224 pfit_w
= (pfit_size
>> 16) & 0xFFFF;
6225 pfit_h
= pfit_size
& 0xFFFF;
6226 if (pipe_w
< pfit_w
)
6228 if (pipe_h
< pfit_h
)
6231 if (WARN_ON(!pfit_w
|| !pfit_h
))
6234 pixel_rate
= div_u64((uint64_t) pixel_rate
* pipe_w
* pipe_h
,
6241 static void intel_crtc_compute_pixel_rate(struct intel_crtc_state
*crtc_state
)
6243 struct drm_i915_private
*dev_priv
= to_i915(crtc_state
->base
.crtc
->dev
);
6245 if (HAS_GMCH_DISPLAY(dev_priv
))
6246 /* FIXME calculate proper pipe pixel rate for GMCH pfit */
6247 crtc_state
->pixel_rate
=
6248 crtc_state
->base
.adjusted_mode
.crtc_clock
;
6250 crtc_state
->pixel_rate
=
6251 ilk_pipe_pixel_rate(crtc_state
);
6254 static int intel_crtc_compute_config(struct intel_crtc
*crtc
,
6255 struct intel_crtc_state
*pipe_config
)
6257 struct drm_device
*dev
= crtc
->base
.dev
;
6258 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6259 const struct drm_display_mode
*adjusted_mode
= &pipe_config
->base
.adjusted_mode
;
6260 int clock_limit
= dev_priv
->max_dotclk_freq
;
6262 if (INTEL_GEN(dev_priv
) < 4) {
6263 clock_limit
= dev_priv
->max_cdclk_freq
* 9 / 10;
6266 * Enable double wide mode when the dot clock
6267 * is > 90% of the (display) core speed.
6269 if (intel_crtc_supports_double_wide(crtc
) &&
6270 adjusted_mode
->crtc_clock
> clock_limit
) {
6271 clock_limit
= dev_priv
->max_dotclk_freq
;
6272 pipe_config
->double_wide
= true;
6276 if (adjusted_mode
->crtc_clock
> clock_limit
) {
6277 DRM_DEBUG_KMS("requested pixel clock (%d kHz) too high (max: %d kHz, double wide: %s)\n",
6278 adjusted_mode
->crtc_clock
, clock_limit
,
6279 yesno(pipe_config
->double_wide
));
6284 * Pipe horizontal size must be even in:
6286 * - LVDS dual channel mode
6287 * - Double wide pipe
6289 if ((intel_crtc_has_type(pipe_config
, INTEL_OUTPUT_LVDS
) &&
6290 intel_is_dual_link_lvds(dev
)) || pipe_config
->double_wide
)
6291 pipe_config
->pipe_src_w
&= ~1;
6293 /* Cantiga+ cannot handle modes with a hsync front porch of 0.
6294 * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw.
6296 if ((INTEL_GEN(dev_priv
) > 4 || IS_G4X(dev_priv
)) &&
6297 adjusted_mode
->crtc_hsync_start
== adjusted_mode
->crtc_hdisplay
)
6300 intel_crtc_compute_pixel_rate(pipe_config
);
6302 if (HAS_IPS(dev_priv
))
6303 hsw_compute_ips_config(crtc
, pipe_config
);
6305 if (pipe_config
->has_pch_encoder
)
6306 return ironlake_fdi_compute_config(crtc
, pipe_config
);
6312 intel_reduce_m_n_ratio(uint32_t *num
, uint32_t *den
)
6314 while (*num
> DATA_LINK_M_N_MASK
||
6315 *den
> DATA_LINK_M_N_MASK
) {
6321 static void compute_m_n(unsigned int m
, unsigned int n
,
6322 uint32_t *ret_m
, uint32_t *ret_n
,
6326 * Reduce M/N as much as possible without loss in precision. Several DP
6327 * dongles in particular seem to be fussy about too large *link* M/N
6328 * values. The passed in values are more likely to have the least
6329 * significant bits zero than M after rounding below, so do this first.
6332 while ((m
& 1) == 0 && (n
& 1) == 0) {
6338 *ret_n
= min_t(unsigned int, roundup_pow_of_two(n
), DATA_LINK_N_MAX
);
6339 *ret_m
= div_u64((uint64_t) m
* *ret_n
, n
);
6340 intel_reduce_m_n_ratio(ret_m
, ret_n
);
6344 intel_link_compute_m_n(int bits_per_pixel
, int nlanes
,
6345 int pixel_clock
, int link_clock
,
6346 struct intel_link_m_n
*m_n
,
6351 compute_m_n(bits_per_pixel
* pixel_clock
,
6352 link_clock
* nlanes
* 8,
6353 &m_n
->gmch_m
, &m_n
->gmch_n
,
6356 compute_m_n(pixel_clock
, link_clock
,
6357 &m_n
->link_m
, &m_n
->link_n
,
6361 static inline bool intel_panel_use_ssc(struct drm_i915_private
*dev_priv
)
6363 if (i915
.panel_use_ssc
>= 0)
6364 return i915
.panel_use_ssc
!= 0;
6365 return dev_priv
->vbt
.lvds_use_ssc
6366 && !(dev_priv
->quirks
& QUIRK_LVDS_SSC_DISABLE
);
6369 static uint32_t pnv_dpll_compute_fp(struct dpll
*dpll
)
6371 return (1 << dpll
->n
) << 16 | dpll
->m2
;
6374 static uint32_t i9xx_dpll_compute_fp(struct dpll
*dpll
)
6376 return dpll
->n
<< 16 | dpll
->m1
<< 8 | dpll
->m2
;
6379 static void i9xx_update_pll_dividers(struct intel_crtc
*crtc
,
6380 struct intel_crtc_state
*crtc_state
,
6381 struct dpll
*reduced_clock
)
6383 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
6386 if (IS_PINEVIEW(dev_priv
)) {
6387 fp
= pnv_dpll_compute_fp(&crtc_state
->dpll
);
6389 fp2
= pnv_dpll_compute_fp(reduced_clock
);
6391 fp
= i9xx_dpll_compute_fp(&crtc_state
->dpll
);
6393 fp2
= i9xx_dpll_compute_fp(reduced_clock
);
6396 crtc_state
->dpll_hw_state
.fp0
= fp
;
6398 crtc
->lowfreq_avail
= false;
6399 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
6401 crtc_state
->dpll_hw_state
.fp1
= fp2
;
6402 crtc
->lowfreq_avail
= true;
6404 crtc_state
->dpll_hw_state
.fp1
= fp
;
6408 static void vlv_pllb_recal_opamp(struct drm_i915_private
*dev_priv
, enum pipe
6414 * PLLB opamp always calibrates to max value of 0x3f, force enable it
6415 * and set it to a reasonable value instead.
6417 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW9(1));
6418 reg_val
&= 0xffffff00;
6419 reg_val
|= 0x00000030;
6420 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9(1), reg_val
);
6422 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_REF_DW13
);
6423 reg_val
&= 0x00ffffff;
6424 reg_val
|= 0x8c000000;
6425 vlv_dpio_write(dev_priv
, pipe
, VLV_REF_DW13
, reg_val
);
6427 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW9(1));
6428 reg_val
&= 0xffffff00;
6429 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9(1), reg_val
);
6431 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_REF_DW13
);
6432 reg_val
&= 0x00ffffff;
6433 reg_val
|= 0xb0000000;
6434 vlv_dpio_write(dev_priv
, pipe
, VLV_REF_DW13
, reg_val
);
6437 static void intel_pch_transcoder_set_m_n(struct intel_crtc
*crtc
,
6438 struct intel_link_m_n
*m_n
)
6440 struct drm_device
*dev
= crtc
->base
.dev
;
6441 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6442 int pipe
= crtc
->pipe
;
6444 I915_WRITE(PCH_TRANS_DATA_M1(pipe
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
6445 I915_WRITE(PCH_TRANS_DATA_N1(pipe
), m_n
->gmch_n
);
6446 I915_WRITE(PCH_TRANS_LINK_M1(pipe
), m_n
->link_m
);
6447 I915_WRITE(PCH_TRANS_LINK_N1(pipe
), m_n
->link_n
);
6450 static void intel_cpu_transcoder_set_m_n(struct intel_crtc
*crtc
,
6451 struct intel_link_m_n
*m_n
,
6452 struct intel_link_m_n
*m2_n2
)
6454 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
6455 int pipe
= crtc
->pipe
;
6456 enum transcoder transcoder
= crtc
->config
->cpu_transcoder
;
6458 if (INTEL_GEN(dev_priv
) >= 5) {
6459 I915_WRITE(PIPE_DATA_M1(transcoder
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
6460 I915_WRITE(PIPE_DATA_N1(transcoder
), m_n
->gmch_n
);
6461 I915_WRITE(PIPE_LINK_M1(transcoder
), m_n
->link_m
);
6462 I915_WRITE(PIPE_LINK_N1(transcoder
), m_n
->link_n
);
6463 /* M2_N2 registers to be set only for gen < 8 (M2_N2 available
6464 * for gen < 8) and if DRRS is supported (to make sure the
6465 * registers are not unnecessarily accessed).
6467 if (m2_n2
&& (IS_CHERRYVIEW(dev_priv
) ||
6468 INTEL_GEN(dev_priv
) < 8) && crtc
->config
->has_drrs
) {
6469 I915_WRITE(PIPE_DATA_M2(transcoder
),
6470 TU_SIZE(m2_n2
->tu
) | m2_n2
->gmch_m
);
6471 I915_WRITE(PIPE_DATA_N2(transcoder
), m2_n2
->gmch_n
);
6472 I915_WRITE(PIPE_LINK_M2(transcoder
), m2_n2
->link_m
);
6473 I915_WRITE(PIPE_LINK_N2(transcoder
), m2_n2
->link_n
);
6476 I915_WRITE(PIPE_DATA_M_G4X(pipe
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
6477 I915_WRITE(PIPE_DATA_N_G4X(pipe
), m_n
->gmch_n
);
6478 I915_WRITE(PIPE_LINK_M_G4X(pipe
), m_n
->link_m
);
6479 I915_WRITE(PIPE_LINK_N_G4X(pipe
), m_n
->link_n
);
6483 void intel_dp_set_m_n(struct intel_crtc
*crtc
, enum link_m_n_set m_n
)
6485 struct intel_link_m_n
*dp_m_n
, *dp_m2_n2
= NULL
;
6488 dp_m_n
= &crtc
->config
->dp_m_n
;
6489 dp_m2_n2
= &crtc
->config
->dp_m2_n2
;
6490 } else if (m_n
== M2_N2
) {
6493 * M2_N2 registers are not supported. Hence m2_n2 divider value
6494 * needs to be programmed into M1_N1.
6496 dp_m_n
= &crtc
->config
->dp_m2_n2
;
6498 DRM_ERROR("Unsupported divider value\n");
6502 if (crtc
->config
->has_pch_encoder
)
6503 intel_pch_transcoder_set_m_n(crtc
, &crtc
->config
->dp_m_n
);
6505 intel_cpu_transcoder_set_m_n(crtc
, dp_m_n
, dp_m2_n2
);
6508 static void vlv_compute_dpll(struct intel_crtc
*crtc
,
6509 struct intel_crtc_state
*pipe_config
)
6511 pipe_config
->dpll_hw_state
.dpll
= DPLL_INTEGRATED_REF_CLK_VLV
|
6512 DPLL_REF_CLK_ENABLE_VLV
| DPLL_VGA_MODE_DIS
;
6513 if (crtc
->pipe
!= PIPE_A
)
6514 pipe_config
->dpll_hw_state
.dpll
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
6516 /* DPLL not used with DSI, but still need the rest set up */
6517 if (!intel_crtc_has_type(pipe_config
, INTEL_OUTPUT_DSI
))
6518 pipe_config
->dpll_hw_state
.dpll
|= DPLL_VCO_ENABLE
|
6519 DPLL_EXT_BUFFER_ENABLE_VLV
;
6521 pipe_config
->dpll_hw_state
.dpll_md
=
6522 (pipe_config
->pixel_multiplier
- 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
6525 static void chv_compute_dpll(struct intel_crtc
*crtc
,
6526 struct intel_crtc_state
*pipe_config
)
6528 pipe_config
->dpll_hw_state
.dpll
= DPLL_SSC_REF_CLK_CHV
|
6529 DPLL_REF_CLK_ENABLE_VLV
| DPLL_VGA_MODE_DIS
;
6530 if (crtc
->pipe
!= PIPE_A
)
6531 pipe_config
->dpll_hw_state
.dpll
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
6533 /* DPLL not used with DSI, but still need the rest set up */
6534 if (!intel_crtc_has_type(pipe_config
, INTEL_OUTPUT_DSI
))
6535 pipe_config
->dpll_hw_state
.dpll
|= DPLL_VCO_ENABLE
;
6537 pipe_config
->dpll_hw_state
.dpll_md
=
6538 (pipe_config
->pixel_multiplier
- 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
6541 static void vlv_prepare_pll(struct intel_crtc
*crtc
,
6542 const struct intel_crtc_state
*pipe_config
)
6544 struct drm_device
*dev
= crtc
->base
.dev
;
6545 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6546 enum pipe pipe
= crtc
->pipe
;
6548 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
;
6549 u32 coreclk
, reg_val
;
6552 I915_WRITE(DPLL(pipe
),
6553 pipe_config
->dpll_hw_state
.dpll
&
6554 ~(DPLL_VCO_ENABLE
| DPLL_EXT_BUFFER_ENABLE_VLV
));
6556 /* No need to actually set up the DPLL with DSI */
6557 if ((pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
) == 0)
6560 mutex_lock(&dev_priv
->sb_lock
);
6562 bestn
= pipe_config
->dpll
.n
;
6563 bestm1
= pipe_config
->dpll
.m1
;
6564 bestm2
= pipe_config
->dpll
.m2
;
6565 bestp1
= pipe_config
->dpll
.p1
;
6566 bestp2
= pipe_config
->dpll
.p2
;
6568 /* See eDP HDMI DPIO driver vbios notes doc */
6570 /* PLL B needs special handling */
6572 vlv_pllb_recal_opamp(dev_priv
, pipe
);
6574 /* Set up Tx target for periodic Rcomp update */
6575 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9_BCAST
, 0x0100000f);
6577 /* Disable target IRef on PLL */
6578 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW8(pipe
));
6579 reg_val
&= 0x00ffffff;
6580 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW8(pipe
), reg_val
);
6582 /* Disable fast lock */
6583 vlv_dpio_write(dev_priv
, pipe
, VLV_CMN_DW0
, 0x610);
6585 /* Set idtafcrecal before PLL is enabled */
6586 mdiv
= ((bestm1
<< DPIO_M1DIV_SHIFT
) | (bestm2
& DPIO_M2DIV_MASK
));
6587 mdiv
|= ((bestp1
<< DPIO_P1_SHIFT
) | (bestp2
<< DPIO_P2_SHIFT
));
6588 mdiv
|= ((bestn
<< DPIO_N_SHIFT
));
6589 mdiv
|= (1 << DPIO_K_SHIFT
);
6592 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
6593 * but we don't support that).
6594 * Note: don't use the DAC post divider as it seems unstable.
6596 mdiv
|= (DPIO_POST_DIV_HDMIDP
<< DPIO_POST_DIV_SHIFT
);
6597 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW3(pipe
), mdiv
);
6599 mdiv
|= DPIO_ENABLE_CALIBRATION
;
6600 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW3(pipe
), mdiv
);
6602 /* Set HBR and RBR LPF coefficients */
6603 if (pipe_config
->port_clock
== 162000 ||
6604 intel_crtc_has_type(crtc
->config
, INTEL_OUTPUT_ANALOG
) ||
6605 intel_crtc_has_type(crtc
->config
, INTEL_OUTPUT_HDMI
))
6606 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW10(pipe
),
6609 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW10(pipe
),
6612 if (intel_crtc_has_dp_encoder(pipe_config
)) {
6613 /* Use SSC source */
6615 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
6618 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
6620 } else { /* HDMI or VGA */
6621 /* Use bend source */
6623 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
6626 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
6630 coreclk
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW7(pipe
));
6631 coreclk
= (coreclk
& 0x0000ff00) | 0x01c00000;
6632 if (intel_crtc_has_dp_encoder(crtc
->config
))
6633 coreclk
|= 0x01000000;
6634 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW7(pipe
), coreclk
);
6636 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW11(pipe
), 0x87871000);
6637 mutex_unlock(&dev_priv
->sb_lock
);
6640 static void chv_prepare_pll(struct intel_crtc
*crtc
,
6641 const struct intel_crtc_state
*pipe_config
)
6643 struct drm_device
*dev
= crtc
->base
.dev
;
6644 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6645 enum pipe pipe
= crtc
->pipe
;
6646 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
6647 u32 loopfilter
, tribuf_calcntr
;
6648 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
, bestm2_frac
;
6652 /* Enable Refclk and SSC */
6653 I915_WRITE(DPLL(pipe
),
6654 pipe_config
->dpll_hw_state
.dpll
& ~DPLL_VCO_ENABLE
);
6656 /* No need to actually set up the DPLL with DSI */
6657 if ((pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
) == 0)
6660 bestn
= pipe_config
->dpll
.n
;
6661 bestm2_frac
= pipe_config
->dpll
.m2
& 0x3fffff;
6662 bestm1
= pipe_config
->dpll
.m1
;
6663 bestm2
= pipe_config
->dpll
.m2
>> 22;
6664 bestp1
= pipe_config
->dpll
.p1
;
6665 bestp2
= pipe_config
->dpll
.p2
;
6666 vco
= pipe_config
->dpll
.vco
;
6670 mutex_lock(&dev_priv
->sb_lock
);
6672 /* p1 and p2 divider */
6673 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW13(port
),
6674 5 << DPIO_CHV_S1_DIV_SHIFT
|
6675 bestp1
<< DPIO_CHV_P1_DIV_SHIFT
|
6676 bestp2
<< DPIO_CHV_P2_DIV_SHIFT
|
6677 1 << DPIO_CHV_K_DIV_SHIFT
);
6679 /* Feedback post-divider - m2 */
6680 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW0(port
), bestm2
);
6682 /* Feedback refclk divider - n and m1 */
6683 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW1(port
),
6684 DPIO_CHV_M1_DIV_BY_2
|
6685 1 << DPIO_CHV_N_DIV_SHIFT
);
6687 /* M2 fraction division */
6688 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW2(port
), bestm2_frac
);
6690 /* M2 fraction division enable */
6691 dpio_val
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW3(port
));
6692 dpio_val
&= ~(DPIO_CHV_FEEDFWD_GAIN_MASK
| DPIO_CHV_FRAC_DIV_EN
);
6693 dpio_val
|= (2 << DPIO_CHV_FEEDFWD_GAIN_SHIFT
);
6695 dpio_val
|= DPIO_CHV_FRAC_DIV_EN
;
6696 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW3(port
), dpio_val
);
6698 /* Program digital lock detect threshold */
6699 dpio_val
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW9(port
));
6700 dpio_val
&= ~(DPIO_CHV_INT_LOCK_THRESHOLD_MASK
|
6701 DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE
);
6702 dpio_val
|= (0x5 << DPIO_CHV_INT_LOCK_THRESHOLD_SHIFT
);
6704 dpio_val
|= DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE
;
6705 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW9(port
), dpio_val
);
6708 if (vco
== 5400000) {
6709 loopfilter
|= (0x3 << DPIO_CHV_PROP_COEFF_SHIFT
);
6710 loopfilter
|= (0x8 << DPIO_CHV_INT_COEFF_SHIFT
);
6711 loopfilter
|= (0x1 << DPIO_CHV_GAIN_CTRL_SHIFT
);
6712 tribuf_calcntr
= 0x9;
6713 } else if (vco
<= 6200000) {
6714 loopfilter
|= (0x5 << DPIO_CHV_PROP_COEFF_SHIFT
);
6715 loopfilter
|= (0xB << DPIO_CHV_INT_COEFF_SHIFT
);
6716 loopfilter
|= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT
);
6717 tribuf_calcntr
= 0x9;
6718 } else if (vco
<= 6480000) {
6719 loopfilter
|= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT
);
6720 loopfilter
|= (0x9 << DPIO_CHV_INT_COEFF_SHIFT
);
6721 loopfilter
|= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT
);
6722 tribuf_calcntr
= 0x8;
6724 /* Not supported. Apply the same limits as in the max case */
6725 loopfilter
|= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT
);
6726 loopfilter
|= (0x9 << DPIO_CHV_INT_COEFF_SHIFT
);
6727 loopfilter
|= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT
);
6730 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW6(port
), loopfilter
);
6732 dpio_val
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW8(port
));
6733 dpio_val
&= ~DPIO_CHV_TDC_TARGET_CNT_MASK
;
6734 dpio_val
|= (tribuf_calcntr
<< DPIO_CHV_TDC_TARGET_CNT_SHIFT
);
6735 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW8(port
), dpio_val
);
6738 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
),
6739 vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
)) |
6742 mutex_unlock(&dev_priv
->sb_lock
);
6746 * vlv_force_pll_on - forcibly enable just the PLL
6747 * @dev_priv: i915 private structure
6748 * @pipe: pipe PLL to enable
6749 * @dpll: PLL configuration
6751 * Enable the PLL for @pipe using the supplied @dpll config. To be used
6752 * in cases where we need the PLL enabled even when @pipe is not going to
6755 int vlv_force_pll_on(struct drm_i915_private
*dev_priv
, enum pipe pipe
,
6756 const struct dpll
*dpll
)
6758 struct intel_crtc
*crtc
= intel_get_crtc_for_pipe(dev_priv
, pipe
);
6759 struct intel_crtc_state
*pipe_config
;
6761 pipe_config
= kzalloc(sizeof(*pipe_config
), GFP_KERNEL
);
6765 pipe_config
->base
.crtc
= &crtc
->base
;
6766 pipe_config
->pixel_multiplier
= 1;
6767 pipe_config
->dpll
= *dpll
;
6769 if (IS_CHERRYVIEW(dev_priv
)) {
6770 chv_compute_dpll(crtc
, pipe_config
);
6771 chv_prepare_pll(crtc
, pipe_config
);
6772 chv_enable_pll(crtc
, pipe_config
);
6774 vlv_compute_dpll(crtc
, pipe_config
);
6775 vlv_prepare_pll(crtc
, pipe_config
);
6776 vlv_enable_pll(crtc
, pipe_config
);
6785 * vlv_force_pll_off - forcibly disable just the PLL
6786 * @dev_priv: i915 private structure
6787 * @pipe: pipe PLL to disable
6789 * Disable the PLL for @pipe. To be used in cases where we need
6790 * the PLL enabled even when @pipe is not going to be enabled.
6792 void vlv_force_pll_off(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
6794 if (IS_CHERRYVIEW(dev_priv
))
6795 chv_disable_pll(dev_priv
, pipe
);
6797 vlv_disable_pll(dev_priv
, pipe
);
6800 static void i9xx_compute_dpll(struct intel_crtc
*crtc
,
6801 struct intel_crtc_state
*crtc_state
,
6802 struct dpll
*reduced_clock
)
6804 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
6806 struct dpll
*clock
= &crtc_state
->dpll
;
6808 i9xx_update_pll_dividers(crtc
, crtc_state
, reduced_clock
);
6810 dpll
= DPLL_VGA_MODE_DIS
;
6812 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
))
6813 dpll
|= DPLLB_MODE_LVDS
;
6815 dpll
|= DPLLB_MODE_DAC_SERIAL
;
6817 if (IS_I945G(dev_priv
) || IS_I945GM(dev_priv
) ||
6818 IS_G33(dev_priv
) || IS_PINEVIEW(dev_priv
)) {
6819 dpll
|= (crtc_state
->pixel_multiplier
- 1)
6820 << SDVO_MULTIPLIER_SHIFT_HIRES
;
6823 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_SDVO
) ||
6824 intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_HDMI
))
6825 dpll
|= DPLL_SDVO_HIGH_SPEED
;
6827 if (intel_crtc_has_dp_encoder(crtc_state
))
6828 dpll
|= DPLL_SDVO_HIGH_SPEED
;
6830 /* compute bitmask from p1 value */
6831 if (IS_PINEVIEW(dev_priv
))
6832 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
;
6834 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
6835 if (IS_G4X(dev_priv
) && reduced_clock
)
6836 dpll
|= (1 << (reduced_clock
->p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
6838 switch (clock
->p2
) {
6840 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
6843 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
6846 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
6849 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
6852 if (INTEL_GEN(dev_priv
) >= 4)
6853 dpll
|= (6 << PLL_LOAD_PULSE_PHASE_SHIFT
);
6855 if (crtc_state
->sdvo_tv_clock
)
6856 dpll
|= PLL_REF_INPUT_TVCLKINBC
;
6857 else if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
6858 intel_panel_use_ssc(dev_priv
))
6859 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
6861 dpll
|= PLL_REF_INPUT_DREFCLK
;
6863 dpll
|= DPLL_VCO_ENABLE
;
6864 crtc_state
->dpll_hw_state
.dpll
= dpll
;
6866 if (INTEL_GEN(dev_priv
) >= 4) {
6867 u32 dpll_md
= (crtc_state
->pixel_multiplier
- 1)
6868 << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
6869 crtc_state
->dpll_hw_state
.dpll_md
= dpll_md
;
6873 static void i8xx_compute_dpll(struct intel_crtc
*crtc
,
6874 struct intel_crtc_state
*crtc_state
,
6875 struct dpll
*reduced_clock
)
6877 struct drm_device
*dev
= crtc
->base
.dev
;
6878 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6880 struct dpll
*clock
= &crtc_state
->dpll
;
6882 i9xx_update_pll_dividers(crtc
, crtc_state
, reduced_clock
);
6884 dpll
= DPLL_VGA_MODE_DIS
;
6886 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
6887 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
6890 dpll
|= PLL_P1_DIVIDE_BY_TWO
;
6892 dpll
|= (clock
->p1
- 2) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
6894 dpll
|= PLL_P2_DIVIDE_BY_4
;
6897 if (!IS_I830(dev_priv
) &&
6898 intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_DVO
))
6899 dpll
|= DPLL_DVO_2X_MODE
;
6901 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
6902 intel_panel_use_ssc(dev_priv
))
6903 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
6905 dpll
|= PLL_REF_INPUT_DREFCLK
;
6907 dpll
|= DPLL_VCO_ENABLE
;
6908 crtc_state
->dpll_hw_state
.dpll
= dpll
;
6911 static void intel_set_pipe_timings(struct intel_crtc
*intel_crtc
)
6913 struct drm_i915_private
*dev_priv
= to_i915(intel_crtc
->base
.dev
);
6914 enum pipe pipe
= intel_crtc
->pipe
;
6915 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
6916 const struct drm_display_mode
*adjusted_mode
= &intel_crtc
->config
->base
.adjusted_mode
;
6917 uint32_t crtc_vtotal
, crtc_vblank_end
;
6920 /* We need to be careful not to changed the adjusted mode, for otherwise
6921 * the hw state checker will get angry at the mismatch. */
6922 crtc_vtotal
= adjusted_mode
->crtc_vtotal
;
6923 crtc_vblank_end
= adjusted_mode
->crtc_vblank_end
;
6925 if (adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
) {
6926 /* the chip adds 2 halflines automatically */
6928 crtc_vblank_end
-= 1;
6930 if (intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_SDVO
))
6931 vsyncshift
= (adjusted_mode
->crtc_htotal
- 1) / 2;
6933 vsyncshift
= adjusted_mode
->crtc_hsync_start
-
6934 adjusted_mode
->crtc_htotal
/ 2;
6936 vsyncshift
+= adjusted_mode
->crtc_htotal
;
6939 if (INTEL_GEN(dev_priv
) > 3)
6940 I915_WRITE(VSYNCSHIFT(cpu_transcoder
), vsyncshift
);
6942 I915_WRITE(HTOTAL(cpu_transcoder
),
6943 (adjusted_mode
->crtc_hdisplay
- 1) |
6944 ((adjusted_mode
->crtc_htotal
- 1) << 16));
6945 I915_WRITE(HBLANK(cpu_transcoder
),
6946 (adjusted_mode
->crtc_hblank_start
- 1) |
6947 ((adjusted_mode
->crtc_hblank_end
- 1) << 16));
6948 I915_WRITE(HSYNC(cpu_transcoder
),
6949 (adjusted_mode
->crtc_hsync_start
- 1) |
6950 ((adjusted_mode
->crtc_hsync_end
- 1) << 16));
6952 I915_WRITE(VTOTAL(cpu_transcoder
),
6953 (adjusted_mode
->crtc_vdisplay
- 1) |
6954 ((crtc_vtotal
- 1) << 16));
6955 I915_WRITE(VBLANK(cpu_transcoder
),
6956 (adjusted_mode
->crtc_vblank_start
- 1) |
6957 ((crtc_vblank_end
- 1) << 16));
6958 I915_WRITE(VSYNC(cpu_transcoder
),
6959 (adjusted_mode
->crtc_vsync_start
- 1) |
6960 ((adjusted_mode
->crtc_vsync_end
- 1) << 16));
6962 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
6963 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
6964 * documented on the DDI_FUNC_CTL register description, EDP Input Select
6966 if (IS_HASWELL(dev_priv
) && cpu_transcoder
== TRANSCODER_EDP
&&
6967 (pipe
== PIPE_B
|| pipe
== PIPE_C
))
6968 I915_WRITE(VTOTAL(pipe
), I915_READ(VTOTAL(cpu_transcoder
)));
6972 static void intel_set_pipe_src_size(struct intel_crtc
*intel_crtc
)
6974 struct drm_device
*dev
= intel_crtc
->base
.dev
;
6975 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6976 enum pipe pipe
= intel_crtc
->pipe
;
6978 /* pipesrc controls the size that is scaled from, which should
6979 * always be the user's requested size.
6981 I915_WRITE(PIPESRC(pipe
),
6982 ((intel_crtc
->config
->pipe_src_w
- 1) << 16) |
6983 (intel_crtc
->config
->pipe_src_h
- 1));
6986 static void intel_get_pipe_timings(struct intel_crtc
*crtc
,
6987 struct intel_crtc_state
*pipe_config
)
6989 struct drm_device
*dev
= crtc
->base
.dev
;
6990 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6991 enum transcoder cpu_transcoder
= pipe_config
->cpu_transcoder
;
6994 tmp
= I915_READ(HTOTAL(cpu_transcoder
));
6995 pipe_config
->base
.adjusted_mode
.crtc_hdisplay
= (tmp
& 0xffff) + 1;
6996 pipe_config
->base
.adjusted_mode
.crtc_htotal
= ((tmp
>> 16) & 0xffff) + 1;
6997 tmp
= I915_READ(HBLANK(cpu_transcoder
));
6998 pipe_config
->base
.adjusted_mode
.crtc_hblank_start
= (tmp
& 0xffff) + 1;
6999 pipe_config
->base
.adjusted_mode
.crtc_hblank_end
= ((tmp
>> 16) & 0xffff) + 1;
7000 tmp
= I915_READ(HSYNC(cpu_transcoder
));
7001 pipe_config
->base
.adjusted_mode
.crtc_hsync_start
= (tmp
& 0xffff) + 1;
7002 pipe_config
->base
.adjusted_mode
.crtc_hsync_end
= ((tmp
>> 16) & 0xffff) + 1;
7004 tmp
= I915_READ(VTOTAL(cpu_transcoder
));
7005 pipe_config
->base
.adjusted_mode
.crtc_vdisplay
= (tmp
& 0xffff) + 1;
7006 pipe_config
->base
.adjusted_mode
.crtc_vtotal
= ((tmp
>> 16) & 0xffff) + 1;
7007 tmp
= I915_READ(VBLANK(cpu_transcoder
));
7008 pipe_config
->base
.adjusted_mode
.crtc_vblank_start
= (tmp
& 0xffff) + 1;
7009 pipe_config
->base
.adjusted_mode
.crtc_vblank_end
= ((tmp
>> 16) & 0xffff) + 1;
7010 tmp
= I915_READ(VSYNC(cpu_transcoder
));
7011 pipe_config
->base
.adjusted_mode
.crtc_vsync_start
= (tmp
& 0xffff) + 1;
7012 pipe_config
->base
.adjusted_mode
.crtc_vsync_end
= ((tmp
>> 16) & 0xffff) + 1;
7014 if (I915_READ(PIPECONF(cpu_transcoder
)) & PIPECONF_INTERLACE_MASK
) {
7015 pipe_config
->base
.adjusted_mode
.flags
|= DRM_MODE_FLAG_INTERLACE
;
7016 pipe_config
->base
.adjusted_mode
.crtc_vtotal
+= 1;
7017 pipe_config
->base
.adjusted_mode
.crtc_vblank_end
+= 1;
7021 static void intel_get_pipe_src_size(struct intel_crtc
*crtc
,
7022 struct intel_crtc_state
*pipe_config
)
7024 struct drm_device
*dev
= crtc
->base
.dev
;
7025 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7028 tmp
= I915_READ(PIPESRC(crtc
->pipe
));
7029 pipe_config
->pipe_src_h
= (tmp
& 0xffff) + 1;
7030 pipe_config
->pipe_src_w
= ((tmp
>> 16) & 0xffff) + 1;
7032 pipe_config
->base
.mode
.vdisplay
= pipe_config
->pipe_src_h
;
7033 pipe_config
->base
.mode
.hdisplay
= pipe_config
->pipe_src_w
;
7036 void intel_mode_from_pipe_config(struct drm_display_mode
*mode
,
7037 struct intel_crtc_state
*pipe_config
)
7039 mode
->hdisplay
= pipe_config
->base
.adjusted_mode
.crtc_hdisplay
;
7040 mode
->htotal
= pipe_config
->base
.adjusted_mode
.crtc_htotal
;
7041 mode
->hsync_start
= pipe_config
->base
.adjusted_mode
.crtc_hsync_start
;
7042 mode
->hsync_end
= pipe_config
->base
.adjusted_mode
.crtc_hsync_end
;
7044 mode
->vdisplay
= pipe_config
->base
.adjusted_mode
.crtc_vdisplay
;
7045 mode
->vtotal
= pipe_config
->base
.adjusted_mode
.crtc_vtotal
;
7046 mode
->vsync_start
= pipe_config
->base
.adjusted_mode
.crtc_vsync_start
;
7047 mode
->vsync_end
= pipe_config
->base
.adjusted_mode
.crtc_vsync_end
;
7049 mode
->flags
= pipe_config
->base
.adjusted_mode
.flags
;
7050 mode
->type
= DRM_MODE_TYPE_DRIVER
;
7052 mode
->clock
= pipe_config
->base
.adjusted_mode
.crtc_clock
;
7054 mode
->hsync
= drm_mode_hsync(mode
);
7055 mode
->vrefresh
= drm_mode_vrefresh(mode
);
7056 drm_mode_set_name(mode
);
7059 static void i9xx_set_pipeconf(struct intel_crtc
*intel_crtc
)
7061 struct drm_i915_private
*dev_priv
= to_i915(intel_crtc
->base
.dev
);
7066 /* we keep both pipes enabled on 830 */
7067 if (IS_I830(dev_priv
))
7068 pipeconf
|= I915_READ(PIPECONF(intel_crtc
->pipe
)) & PIPECONF_ENABLE
;
7070 if (intel_crtc
->config
->double_wide
)
7071 pipeconf
|= PIPECONF_DOUBLE_WIDE
;
7073 /* only g4x and later have fancy bpc/dither controls */
7074 if (IS_G4X(dev_priv
) || IS_VALLEYVIEW(dev_priv
) ||
7075 IS_CHERRYVIEW(dev_priv
)) {
7076 /* Bspec claims that we can't use dithering for 30bpp pipes. */
7077 if (intel_crtc
->config
->dither
&& intel_crtc
->config
->pipe_bpp
!= 30)
7078 pipeconf
|= PIPECONF_DITHER_EN
|
7079 PIPECONF_DITHER_TYPE_SP
;
7081 switch (intel_crtc
->config
->pipe_bpp
) {
7083 pipeconf
|= PIPECONF_6BPC
;
7086 pipeconf
|= PIPECONF_8BPC
;
7089 pipeconf
|= PIPECONF_10BPC
;
7092 /* Case prevented by intel_choose_pipe_bpp_dither. */
7097 if (HAS_PIPE_CXSR(dev_priv
)) {
7098 if (intel_crtc
->lowfreq_avail
) {
7099 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
7100 pipeconf
|= PIPECONF_CXSR_DOWNCLOCK
;
7102 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
7106 if (intel_crtc
->config
->base
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
) {
7107 if (INTEL_GEN(dev_priv
) < 4 ||
7108 intel_crtc_has_type(intel_crtc
->config
, INTEL_OUTPUT_SDVO
))
7109 pipeconf
|= PIPECONF_INTERLACE_W_FIELD_INDICATION
;
7111 pipeconf
|= PIPECONF_INTERLACE_W_SYNC_SHIFT
;
7113 pipeconf
|= PIPECONF_PROGRESSIVE
;
7115 if ((IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) &&
7116 intel_crtc
->config
->limited_color_range
)
7117 pipeconf
|= PIPECONF_COLOR_RANGE_SELECT
;
7119 I915_WRITE(PIPECONF(intel_crtc
->pipe
), pipeconf
);
7120 POSTING_READ(PIPECONF(intel_crtc
->pipe
));
7123 static int i8xx_crtc_compute_clock(struct intel_crtc
*crtc
,
7124 struct intel_crtc_state
*crtc_state
)
7126 struct drm_device
*dev
= crtc
->base
.dev
;
7127 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7128 const struct intel_limit
*limit
;
7131 memset(&crtc_state
->dpll_hw_state
, 0,
7132 sizeof(crtc_state
->dpll_hw_state
));
7134 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
7135 if (intel_panel_use_ssc(dev_priv
)) {
7136 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
7137 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk
);
7140 limit
= &intel_limits_i8xx_lvds
;
7141 } else if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_DVO
)) {
7142 limit
= &intel_limits_i8xx_dvo
;
7144 limit
= &intel_limits_i8xx_dac
;
7147 if (!crtc_state
->clock_set
&&
7148 !i9xx_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
7149 refclk
, NULL
, &crtc_state
->dpll
)) {
7150 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7154 i8xx_compute_dpll(crtc
, crtc_state
, NULL
);
7159 static int g4x_crtc_compute_clock(struct intel_crtc
*crtc
,
7160 struct intel_crtc_state
*crtc_state
)
7162 struct drm_device
*dev
= crtc
->base
.dev
;
7163 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7164 const struct intel_limit
*limit
;
7167 memset(&crtc_state
->dpll_hw_state
, 0,
7168 sizeof(crtc_state
->dpll_hw_state
));
7170 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
7171 if (intel_panel_use_ssc(dev_priv
)) {
7172 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
7173 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk
);
7176 if (intel_is_dual_link_lvds(dev
))
7177 limit
= &intel_limits_g4x_dual_channel_lvds
;
7179 limit
= &intel_limits_g4x_single_channel_lvds
;
7180 } else if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_HDMI
) ||
7181 intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_ANALOG
)) {
7182 limit
= &intel_limits_g4x_hdmi
;
7183 } else if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_SDVO
)) {
7184 limit
= &intel_limits_g4x_sdvo
;
7186 /* The option is for other outputs */
7187 limit
= &intel_limits_i9xx_sdvo
;
7190 if (!crtc_state
->clock_set
&&
7191 !g4x_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
7192 refclk
, NULL
, &crtc_state
->dpll
)) {
7193 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7197 i9xx_compute_dpll(crtc
, crtc_state
, NULL
);
7202 static int pnv_crtc_compute_clock(struct intel_crtc
*crtc
,
7203 struct intel_crtc_state
*crtc_state
)
7205 struct drm_device
*dev
= crtc
->base
.dev
;
7206 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7207 const struct intel_limit
*limit
;
7210 memset(&crtc_state
->dpll_hw_state
, 0,
7211 sizeof(crtc_state
->dpll_hw_state
));
7213 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
7214 if (intel_panel_use_ssc(dev_priv
)) {
7215 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
7216 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk
);
7219 limit
= &intel_limits_pineview_lvds
;
7221 limit
= &intel_limits_pineview_sdvo
;
7224 if (!crtc_state
->clock_set
&&
7225 !pnv_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
7226 refclk
, NULL
, &crtc_state
->dpll
)) {
7227 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7231 i9xx_compute_dpll(crtc
, crtc_state
, NULL
);
7236 static int i9xx_crtc_compute_clock(struct intel_crtc
*crtc
,
7237 struct intel_crtc_state
*crtc_state
)
7239 struct drm_device
*dev
= crtc
->base
.dev
;
7240 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7241 const struct intel_limit
*limit
;
7244 memset(&crtc_state
->dpll_hw_state
, 0,
7245 sizeof(crtc_state
->dpll_hw_state
));
7247 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
7248 if (intel_panel_use_ssc(dev_priv
)) {
7249 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
7250 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk
);
7253 limit
= &intel_limits_i9xx_lvds
;
7255 limit
= &intel_limits_i9xx_sdvo
;
7258 if (!crtc_state
->clock_set
&&
7259 !i9xx_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
7260 refclk
, NULL
, &crtc_state
->dpll
)) {
7261 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7265 i9xx_compute_dpll(crtc
, crtc_state
, NULL
);
7270 static int chv_crtc_compute_clock(struct intel_crtc
*crtc
,
7271 struct intel_crtc_state
*crtc_state
)
7273 int refclk
= 100000;
7274 const struct intel_limit
*limit
= &intel_limits_chv
;
7276 memset(&crtc_state
->dpll_hw_state
, 0,
7277 sizeof(crtc_state
->dpll_hw_state
));
7279 if (!crtc_state
->clock_set
&&
7280 !chv_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
7281 refclk
, NULL
, &crtc_state
->dpll
)) {
7282 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7286 chv_compute_dpll(crtc
, crtc_state
);
7291 static int vlv_crtc_compute_clock(struct intel_crtc
*crtc
,
7292 struct intel_crtc_state
*crtc_state
)
7294 int refclk
= 100000;
7295 const struct intel_limit
*limit
= &intel_limits_vlv
;
7297 memset(&crtc_state
->dpll_hw_state
, 0,
7298 sizeof(crtc_state
->dpll_hw_state
));
7300 if (!crtc_state
->clock_set
&&
7301 !vlv_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
7302 refclk
, NULL
, &crtc_state
->dpll
)) {
7303 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7307 vlv_compute_dpll(crtc
, crtc_state
);
7312 static void i9xx_get_pfit_config(struct intel_crtc
*crtc
,
7313 struct intel_crtc_state
*pipe_config
)
7315 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
7318 if (INTEL_GEN(dev_priv
) <= 3 &&
7319 (IS_I830(dev_priv
) || !IS_MOBILE(dev_priv
)))
7322 tmp
= I915_READ(PFIT_CONTROL
);
7323 if (!(tmp
& PFIT_ENABLE
))
7326 /* Check whether the pfit is attached to our pipe. */
7327 if (INTEL_GEN(dev_priv
) < 4) {
7328 if (crtc
->pipe
!= PIPE_B
)
7331 if ((tmp
& PFIT_PIPE_MASK
) != (crtc
->pipe
<< PFIT_PIPE_SHIFT
))
7335 pipe_config
->gmch_pfit
.control
= tmp
;
7336 pipe_config
->gmch_pfit
.pgm_ratios
= I915_READ(PFIT_PGM_RATIOS
);
7339 static void vlv_crtc_clock_get(struct intel_crtc
*crtc
,
7340 struct intel_crtc_state
*pipe_config
)
7342 struct drm_device
*dev
= crtc
->base
.dev
;
7343 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7344 int pipe
= pipe_config
->cpu_transcoder
;
7347 int refclk
= 100000;
7349 /* In case of DSI, DPLL will not be used */
7350 if ((pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
) == 0)
7353 mutex_lock(&dev_priv
->sb_lock
);
7354 mdiv
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW3(pipe
));
7355 mutex_unlock(&dev_priv
->sb_lock
);
7357 clock
.m1
= (mdiv
>> DPIO_M1DIV_SHIFT
) & 7;
7358 clock
.m2
= mdiv
& DPIO_M2DIV_MASK
;
7359 clock
.n
= (mdiv
>> DPIO_N_SHIFT
) & 0xf;
7360 clock
.p1
= (mdiv
>> DPIO_P1_SHIFT
) & 7;
7361 clock
.p2
= (mdiv
>> DPIO_P2_SHIFT
) & 0x1f;
7363 pipe_config
->port_clock
= vlv_calc_dpll_params(refclk
, &clock
);
7367 i9xx_get_initial_plane_config(struct intel_crtc
*crtc
,
7368 struct intel_initial_plane_config
*plane_config
)
7370 struct drm_device
*dev
= crtc
->base
.dev
;
7371 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7372 u32 val
, base
, offset
;
7373 int pipe
= crtc
->pipe
, plane
= crtc
->plane
;
7374 int fourcc
, pixel_format
;
7375 unsigned int aligned_height
;
7376 struct drm_framebuffer
*fb
;
7377 struct intel_framebuffer
*intel_fb
;
7379 val
= I915_READ(DSPCNTR(plane
));
7380 if (!(val
& DISPLAY_PLANE_ENABLE
))
7383 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
7385 DRM_DEBUG_KMS("failed to alloc fb\n");
7389 fb
= &intel_fb
->base
;
7393 if (INTEL_GEN(dev_priv
) >= 4) {
7394 if (val
& DISPPLANE_TILED
) {
7395 plane_config
->tiling
= I915_TILING_X
;
7396 fb
->modifier
= I915_FORMAT_MOD_X_TILED
;
7400 pixel_format
= val
& DISPPLANE_PIXFORMAT_MASK
;
7401 fourcc
= i9xx_format_to_fourcc(pixel_format
);
7402 fb
->format
= drm_format_info(fourcc
);
7404 if (INTEL_GEN(dev_priv
) >= 4) {
7405 if (plane_config
->tiling
)
7406 offset
= I915_READ(DSPTILEOFF(plane
));
7408 offset
= I915_READ(DSPLINOFF(plane
));
7409 base
= I915_READ(DSPSURF(plane
)) & 0xfffff000;
7411 base
= I915_READ(DSPADDR(plane
));
7413 plane_config
->base
= base
;
7415 val
= I915_READ(PIPESRC(pipe
));
7416 fb
->width
= ((val
>> 16) & 0xfff) + 1;
7417 fb
->height
= ((val
>> 0) & 0xfff) + 1;
7419 val
= I915_READ(DSPSTRIDE(pipe
));
7420 fb
->pitches
[0] = val
& 0xffffffc0;
7422 aligned_height
= intel_fb_align_height(fb
, 0, fb
->height
);
7424 plane_config
->size
= fb
->pitches
[0] * aligned_height
;
7426 DRM_DEBUG_KMS("pipe/plane %c/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
7427 pipe_name(pipe
), plane
, fb
->width
, fb
->height
,
7428 fb
->format
->cpp
[0] * 8, base
, fb
->pitches
[0],
7429 plane_config
->size
);
7431 plane_config
->fb
= intel_fb
;
7434 static void chv_crtc_clock_get(struct intel_crtc
*crtc
,
7435 struct intel_crtc_state
*pipe_config
)
7437 struct drm_device
*dev
= crtc
->base
.dev
;
7438 struct drm_i915_private
*dev_priv
= to_i915(dev
);
7439 int pipe
= pipe_config
->cpu_transcoder
;
7440 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
7442 u32 cmn_dw13
, pll_dw0
, pll_dw1
, pll_dw2
, pll_dw3
;
7443 int refclk
= 100000;
7445 /* In case of DSI, DPLL will not be used */
7446 if ((pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
) == 0)
7449 mutex_lock(&dev_priv
->sb_lock
);
7450 cmn_dw13
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW13(port
));
7451 pll_dw0
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW0(port
));
7452 pll_dw1
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW1(port
));
7453 pll_dw2
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW2(port
));
7454 pll_dw3
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW3(port
));
7455 mutex_unlock(&dev_priv
->sb_lock
);
7457 clock
.m1
= (pll_dw1
& 0x7) == DPIO_CHV_M1_DIV_BY_2
? 2 : 0;
7458 clock
.m2
= (pll_dw0
& 0xff) << 22;
7459 if (pll_dw3
& DPIO_CHV_FRAC_DIV_EN
)
7460 clock
.m2
|= pll_dw2
& 0x3fffff;
7461 clock
.n
= (pll_dw1
>> DPIO_CHV_N_DIV_SHIFT
) & 0xf;
7462 clock
.p1
= (cmn_dw13
>> DPIO_CHV_P1_DIV_SHIFT
) & 0x7;
7463 clock
.p2
= (cmn_dw13
>> DPIO_CHV_P2_DIV_SHIFT
) & 0x1f;
7465 pipe_config
->port_clock
= chv_calc_dpll_params(refclk
, &clock
);
7468 static bool i9xx_get_pipe_config(struct intel_crtc
*crtc
,
7469 struct intel_crtc_state
*pipe_config
)
7471 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
7472 enum intel_display_power_domain power_domain
;
7476 power_domain
= POWER_DOMAIN_PIPE(crtc
->pipe
);
7477 if (!intel_display_power_get_if_enabled(dev_priv
, power_domain
))
7480 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
7481 pipe_config
->shared_dpll
= NULL
;
7485 tmp
= I915_READ(PIPECONF(crtc
->pipe
));
7486 if (!(tmp
& PIPECONF_ENABLE
))
7489 if (IS_G4X(dev_priv
) || IS_VALLEYVIEW(dev_priv
) ||
7490 IS_CHERRYVIEW(dev_priv
)) {
7491 switch (tmp
& PIPECONF_BPC_MASK
) {
7493 pipe_config
->pipe_bpp
= 18;
7496 pipe_config
->pipe_bpp
= 24;
7498 case PIPECONF_10BPC
:
7499 pipe_config
->pipe_bpp
= 30;
7506 if ((IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) &&
7507 (tmp
& PIPECONF_COLOR_RANGE_SELECT
))
7508 pipe_config
->limited_color_range
= true;
7510 if (INTEL_GEN(dev_priv
) < 4)
7511 pipe_config
->double_wide
= tmp
& PIPECONF_DOUBLE_WIDE
;
7513 intel_get_pipe_timings(crtc
, pipe_config
);
7514 intel_get_pipe_src_size(crtc
, pipe_config
);
7516 i9xx_get_pfit_config(crtc
, pipe_config
);
7518 if (INTEL_GEN(dev_priv
) >= 4) {
7519 /* No way to read it out on pipes B and C */
7520 if (IS_CHERRYVIEW(dev_priv
) && crtc
->pipe
!= PIPE_A
)
7521 tmp
= dev_priv
->chv_dpll_md
[crtc
->pipe
];
7523 tmp
= I915_READ(DPLL_MD(crtc
->pipe
));
7524 pipe_config
->pixel_multiplier
=
7525 ((tmp
& DPLL_MD_UDI_MULTIPLIER_MASK
)
7526 >> DPLL_MD_UDI_MULTIPLIER_SHIFT
) + 1;
7527 pipe_config
->dpll_hw_state
.dpll_md
= tmp
;
7528 } else if (IS_I945G(dev_priv
) || IS_I945GM(dev_priv
) ||
7529 IS_G33(dev_priv
) || IS_PINEVIEW(dev_priv
)) {
7530 tmp
= I915_READ(DPLL(crtc
->pipe
));
7531 pipe_config
->pixel_multiplier
=
7532 ((tmp
& SDVO_MULTIPLIER_MASK
)
7533 >> SDVO_MULTIPLIER_SHIFT_HIRES
) + 1;
7535 /* Note that on i915G/GM the pixel multiplier is in the sdvo
7536 * port and will be fixed up in the encoder->get_config
7538 pipe_config
->pixel_multiplier
= 1;
7540 pipe_config
->dpll_hw_state
.dpll
= I915_READ(DPLL(crtc
->pipe
));
7541 if (!IS_VALLEYVIEW(dev_priv
) && !IS_CHERRYVIEW(dev_priv
)) {
7543 * DPLL_DVO_2X_MODE must be enabled for both DPLLs
7544 * on 830. Filter it out here so that we don't
7545 * report errors due to that.
7547 if (IS_I830(dev_priv
))
7548 pipe_config
->dpll_hw_state
.dpll
&= ~DPLL_DVO_2X_MODE
;
7550 pipe_config
->dpll_hw_state
.fp0
= I915_READ(FP0(crtc
->pipe
));
7551 pipe_config
->dpll_hw_state
.fp1
= I915_READ(FP1(crtc
->pipe
));
7553 /* Mask out read-only status bits. */
7554 pipe_config
->dpll_hw_state
.dpll
&= ~(DPLL_LOCK_VLV
|
7555 DPLL_PORTC_READY_MASK
|
7556 DPLL_PORTB_READY_MASK
);
7559 if (IS_CHERRYVIEW(dev_priv
))
7560 chv_crtc_clock_get(crtc
, pipe_config
);
7561 else if (IS_VALLEYVIEW(dev_priv
))
7562 vlv_crtc_clock_get(crtc
, pipe_config
);
7564 i9xx_crtc_clock_get(crtc
, pipe_config
);
7567 * Normally the dotclock is filled in by the encoder .get_config()
7568 * but in case the pipe is enabled w/o any ports we need a sane
7571 pipe_config
->base
.adjusted_mode
.crtc_clock
=
7572 pipe_config
->port_clock
/ pipe_config
->pixel_multiplier
;
7577 intel_display_power_put(dev_priv
, power_domain
);
7582 static void ironlake_init_pch_refclk(struct drm_i915_private
*dev_priv
)
7584 struct intel_encoder
*encoder
;
7587 bool has_lvds
= false;
7588 bool has_cpu_edp
= false;
7589 bool has_panel
= false;
7590 bool has_ck505
= false;
7591 bool can_ssc
= false;
7592 bool using_ssc_source
= false;
7594 /* We need to take the global config into account */
7595 for_each_intel_encoder(&dev_priv
->drm
, encoder
) {
7596 switch (encoder
->type
) {
7597 case INTEL_OUTPUT_LVDS
:
7601 case INTEL_OUTPUT_EDP
:
7603 if (enc_to_dig_port(&encoder
->base
)->port
== PORT_A
)
7611 if (HAS_PCH_IBX(dev_priv
)) {
7612 has_ck505
= dev_priv
->vbt
.display_clock_mode
;
7613 can_ssc
= has_ck505
;
7619 /* Check if any DPLLs are using the SSC source */
7620 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
7621 u32 temp
= I915_READ(PCH_DPLL(i
));
7623 if (!(temp
& DPLL_VCO_ENABLE
))
7626 if ((temp
& PLL_REF_INPUT_MASK
) ==
7627 PLLB_REF_INPUT_SPREADSPECTRUMIN
) {
7628 using_ssc_source
= true;
7633 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d using_ssc_source %d\n",
7634 has_panel
, has_lvds
, has_ck505
, using_ssc_source
);
7636 /* Ironlake: try to setup display ref clock before DPLL
7637 * enabling. This is only under driver's control after
7638 * PCH B stepping, previous chipset stepping should be
7639 * ignoring this setting.
7641 val
= I915_READ(PCH_DREF_CONTROL
);
7643 /* As we must carefully and slowly disable/enable each source in turn,
7644 * compute the final state we want first and check if we need to
7645 * make any changes at all.
7648 final
&= ~DREF_NONSPREAD_SOURCE_MASK
;
7650 final
|= DREF_NONSPREAD_CK505_ENABLE
;
7652 final
|= DREF_NONSPREAD_SOURCE_ENABLE
;
7654 final
&= ~DREF_SSC_SOURCE_MASK
;
7655 final
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
7656 final
&= ~DREF_SSC1_ENABLE
;
7659 final
|= DREF_SSC_SOURCE_ENABLE
;
7661 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
7662 final
|= DREF_SSC1_ENABLE
;
7665 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
7666 final
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
7668 final
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
7670 final
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
7671 } else if (using_ssc_source
) {
7672 final
|= DREF_SSC_SOURCE_ENABLE
;
7673 final
|= DREF_SSC1_ENABLE
;
7679 /* Always enable nonspread source */
7680 val
&= ~DREF_NONSPREAD_SOURCE_MASK
;
7683 val
|= DREF_NONSPREAD_CK505_ENABLE
;
7685 val
|= DREF_NONSPREAD_SOURCE_ENABLE
;
7688 val
&= ~DREF_SSC_SOURCE_MASK
;
7689 val
|= DREF_SSC_SOURCE_ENABLE
;
7691 /* SSC must be turned on before enabling the CPU output */
7692 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
7693 DRM_DEBUG_KMS("Using SSC on panel\n");
7694 val
|= DREF_SSC1_ENABLE
;
7696 val
&= ~DREF_SSC1_ENABLE
;
7698 /* Get SSC going before enabling the outputs */
7699 I915_WRITE(PCH_DREF_CONTROL
, val
);
7700 POSTING_READ(PCH_DREF_CONTROL
);
7703 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
7705 /* Enable CPU source on CPU attached eDP */
7707 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
7708 DRM_DEBUG_KMS("Using SSC on eDP\n");
7709 val
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
7711 val
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
7713 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
7715 I915_WRITE(PCH_DREF_CONTROL
, val
);
7716 POSTING_READ(PCH_DREF_CONTROL
);
7719 DRM_DEBUG_KMS("Disabling CPU source output\n");
7721 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
7723 /* Turn off CPU output */
7724 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
7726 I915_WRITE(PCH_DREF_CONTROL
, val
);
7727 POSTING_READ(PCH_DREF_CONTROL
);
7730 if (!using_ssc_source
) {
7731 DRM_DEBUG_KMS("Disabling SSC source\n");
7733 /* Turn off the SSC source */
7734 val
&= ~DREF_SSC_SOURCE_MASK
;
7735 val
|= DREF_SSC_SOURCE_DISABLE
;
7738 val
&= ~DREF_SSC1_ENABLE
;
7740 I915_WRITE(PCH_DREF_CONTROL
, val
);
7741 POSTING_READ(PCH_DREF_CONTROL
);
7746 BUG_ON(val
!= final
);
7749 static void lpt_reset_fdi_mphy(struct drm_i915_private
*dev_priv
)
7753 tmp
= I915_READ(SOUTH_CHICKEN2
);
7754 tmp
|= FDI_MPHY_IOSFSB_RESET_CTL
;
7755 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
7757 if (wait_for_us(I915_READ(SOUTH_CHICKEN2
) &
7758 FDI_MPHY_IOSFSB_RESET_STATUS
, 100))
7759 DRM_ERROR("FDI mPHY reset assert timeout\n");
7761 tmp
= I915_READ(SOUTH_CHICKEN2
);
7762 tmp
&= ~FDI_MPHY_IOSFSB_RESET_CTL
;
7763 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
7765 if (wait_for_us((I915_READ(SOUTH_CHICKEN2
) &
7766 FDI_MPHY_IOSFSB_RESET_STATUS
) == 0, 100))
7767 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
7770 /* WaMPhyProgramming:hsw */
7771 static void lpt_program_fdi_mphy(struct drm_i915_private
*dev_priv
)
7775 tmp
= intel_sbi_read(dev_priv
, 0x8008, SBI_MPHY
);
7776 tmp
&= ~(0xFF << 24);
7777 tmp
|= (0x12 << 24);
7778 intel_sbi_write(dev_priv
, 0x8008, tmp
, SBI_MPHY
);
7780 tmp
= intel_sbi_read(dev_priv
, 0x2008, SBI_MPHY
);
7782 intel_sbi_write(dev_priv
, 0x2008, tmp
, SBI_MPHY
);
7784 tmp
= intel_sbi_read(dev_priv
, 0x2108, SBI_MPHY
);
7786 intel_sbi_write(dev_priv
, 0x2108, tmp
, SBI_MPHY
);
7788 tmp
= intel_sbi_read(dev_priv
, 0x206C, SBI_MPHY
);
7789 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
7790 intel_sbi_write(dev_priv
, 0x206C, tmp
, SBI_MPHY
);
7792 tmp
= intel_sbi_read(dev_priv
, 0x216C, SBI_MPHY
);
7793 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
7794 intel_sbi_write(dev_priv
, 0x216C, tmp
, SBI_MPHY
);
7796 tmp
= intel_sbi_read(dev_priv
, 0x2080, SBI_MPHY
);
7799 intel_sbi_write(dev_priv
, 0x2080, tmp
, SBI_MPHY
);
7801 tmp
= intel_sbi_read(dev_priv
, 0x2180, SBI_MPHY
);
7804 intel_sbi_write(dev_priv
, 0x2180, tmp
, SBI_MPHY
);
7806 tmp
= intel_sbi_read(dev_priv
, 0x208C, SBI_MPHY
);
7809 intel_sbi_write(dev_priv
, 0x208C, tmp
, SBI_MPHY
);
7811 tmp
= intel_sbi_read(dev_priv
, 0x218C, SBI_MPHY
);
7814 intel_sbi_write(dev_priv
, 0x218C, tmp
, SBI_MPHY
);
7816 tmp
= intel_sbi_read(dev_priv
, 0x2098, SBI_MPHY
);
7817 tmp
&= ~(0xFF << 16);
7818 tmp
|= (0x1C << 16);
7819 intel_sbi_write(dev_priv
, 0x2098, tmp
, SBI_MPHY
);
7821 tmp
= intel_sbi_read(dev_priv
, 0x2198, SBI_MPHY
);
7822 tmp
&= ~(0xFF << 16);
7823 tmp
|= (0x1C << 16);
7824 intel_sbi_write(dev_priv
, 0x2198, tmp
, SBI_MPHY
);
7826 tmp
= intel_sbi_read(dev_priv
, 0x20C4, SBI_MPHY
);
7828 intel_sbi_write(dev_priv
, 0x20C4, tmp
, SBI_MPHY
);
7830 tmp
= intel_sbi_read(dev_priv
, 0x21C4, SBI_MPHY
);
7832 intel_sbi_write(dev_priv
, 0x21C4, tmp
, SBI_MPHY
);
7834 tmp
= intel_sbi_read(dev_priv
, 0x20EC, SBI_MPHY
);
7835 tmp
&= ~(0xF << 28);
7837 intel_sbi_write(dev_priv
, 0x20EC, tmp
, SBI_MPHY
);
7839 tmp
= intel_sbi_read(dev_priv
, 0x21EC, SBI_MPHY
);
7840 tmp
&= ~(0xF << 28);
7842 intel_sbi_write(dev_priv
, 0x21EC, tmp
, SBI_MPHY
);
7845 /* Implements 3 different sequences from BSpec chapter "Display iCLK
7846 * Programming" based on the parameters passed:
7847 * - Sequence to enable CLKOUT_DP
7848 * - Sequence to enable CLKOUT_DP without spread
7849 * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O
7851 static void lpt_enable_clkout_dp(struct drm_i915_private
*dev_priv
,
7852 bool with_spread
, bool with_fdi
)
7856 if (WARN(with_fdi
&& !with_spread
, "FDI requires downspread\n"))
7858 if (WARN(HAS_PCH_LPT_LP(dev_priv
) &&
7859 with_fdi
, "LP PCH doesn't have FDI\n"))
7862 mutex_lock(&dev_priv
->sb_lock
);
7864 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
7865 tmp
&= ~SBI_SSCCTL_DISABLE
;
7866 tmp
|= SBI_SSCCTL_PATHALT
;
7867 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
7872 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
7873 tmp
&= ~SBI_SSCCTL_PATHALT
;
7874 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
7877 lpt_reset_fdi_mphy(dev_priv
);
7878 lpt_program_fdi_mphy(dev_priv
);
7882 reg
= HAS_PCH_LPT_LP(dev_priv
) ? SBI_GEN0
: SBI_DBUFF0
;
7883 tmp
= intel_sbi_read(dev_priv
, reg
, SBI_ICLK
);
7884 tmp
|= SBI_GEN0_CFG_BUFFENABLE_DISABLE
;
7885 intel_sbi_write(dev_priv
, reg
, tmp
, SBI_ICLK
);
7887 mutex_unlock(&dev_priv
->sb_lock
);
7890 /* Sequence to disable CLKOUT_DP */
7891 static void lpt_disable_clkout_dp(struct drm_i915_private
*dev_priv
)
7895 mutex_lock(&dev_priv
->sb_lock
);
7897 reg
= HAS_PCH_LPT_LP(dev_priv
) ? SBI_GEN0
: SBI_DBUFF0
;
7898 tmp
= intel_sbi_read(dev_priv
, reg
, SBI_ICLK
);
7899 tmp
&= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE
;
7900 intel_sbi_write(dev_priv
, reg
, tmp
, SBI_ICLK
);
7902 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
7903 if (!(tmp
& SBI_SSCCTL_DISABLE
)) {
7904 if (!(tmp
& SBI_SSCCTL_PATHALT
)) {
7905 tmp
|= SBI_SSCCTL_PATHALT
;
7906 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
7909 tmp
|= SBI_SSCCTL_DISABLE
;
7910 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
7913 mutex_unlock(&dev_priv
->sb_lock
);
7916 #define BEND_IDX(steps) ((50 + (steps)) / 5)
7918 static const uint16_t sscdivintphase
[] = {
7919 [BEND_IDX( 50)] = 0x3B23,
7920 [BEND_IDX( 45)] = 0x3B23,
7921 [BEND_IDX( 40)] = 0x3C23,
7922 [BEND_IDX( 35)] = 0x3C23,
7923 [BEND_IDX( 30)] = 0x3D23,
7924 [BEND_IDX( 25)] = 0x3D23,
7925 [BEND_IDX( 20)] = 0x3E23,
7926 [BEND_IDX( 15)] = 0x3E23,
7927 [BEND_IDX( 10)] = 0x3F23,
7928 [BEND_IDX( 5)] = 0x3F23,
7929 [BEND_IDX( 0)] = 0x0025,
7930 [BEND_IDX( -5)] = 0x0025,
7931 [BEND_IDX(-10)] = 0x0125,
7932 [BEND_IDX(-15)] = 0x0125,
7933 [BEND_IDX(-20)] = 0x0225,
7934 [BEND_IDX(-25)] = 0x0225,
7935 [BEND_IDX(-30)] = 0x0325,
7936 [BEND_IDX(-35)] = 0x0325,
7937 [BEND_IDX(-40)] = 0x0425,
7938 [BEND_IDX(-45)] = 0x0425,
7939 [BEND_IDX(-50)] = 0x0525,
7944 * steps -50 to 50 inclusive, in steps of 5
7945 * < 0 slow down the clock, > 0 speed up the clock, 0 == no bend (135MHz)
7946 * change in clock period = -(steps / 10) * 5.787 ps
7948 static void lpt_bend_clkout_dp(struct drm_i915_private
*dev_priv
, int steps
)
7951 int idx
= BEND_IDX(steps
);
7953 if (WARN_ON(steps
% 5 != 0))
7956 if (WARN_ON(idx
>= ARRAY_SIZE(sscdivintphase
)))
7959 mutex_lock(&dev_priv
->sb_lock
);
7961 if (steps
% 10 != 0)
7965 intel_sbi_write(dev_priv
, SBI_SSCDITHPHASE
, tmp
, SBI_ICLK
);
7967 tmp
= intel_sbi_read(dev_priv
, SBI_SSCDIVINTPHASE
, SBI_ICLK
);
7969 tmp
|= sscdivintphase
[idx
];
7970 intel_sbi_write(dev_priv
, SBI_SSCDIVINTPHASE
, tmp
, SBI_ICLK
);
7972 mutex_unlock(&dev_priv
->sb_lock
);
7977 static void lpt_init_pch_refclk(struct drm_i915_private
*dev_priv
)
7979 struct intel_encoder
*encoder
;
7980 bool has_vga
= false;
7982 for_each_intel_encoder(&dev_priv
->drm
, encoder
) {
7983 switch (encoder
->type
) {
7984 case INTEL_OUTPUT_ANALOG
:
7993 lpt_bend_clkout_dp(dev_priv
, 0);
7994 lpt_enable_clkout_dp(dev_priv
, true, true);
7996 lpt_disable_clkout_dp(dev_priv
);
8001 * Initialize reference clocks when the driver loads
8003 void intel_init_pch_refclk(struct drm_i915_private
*dev_priv
)
8005 if (HAS_PCH_IBX(dev_priv
) || HAS_PCH_CPT(dev_priv
))
8006 ironlake_init_pch_refclk(dev_priv
);
8007 else if (HAS_PCH_LPT(dev_priv
))
8008 lpt_init_pch_refclk(dev_priv
);
8011 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
)
8013 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
8014 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8015 int pipe
= intel_crtc
->pipe
;
8020 switch (intel_crtc
->config
->pipe_bpp
) {
8022 val
|= PIPECONF_6BPC
;
8025 val
|= PIPECONF_8BPC
;
8028 val
|= PIPECONF_10BPC
;
8031 val
|= PIPECONF_12BPC
;
8034 /* Case prevented by intel_choose_pipe_bpp_dither. */
8038 if (intel_crtc
->config
->dither
)
8039 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
8041 if (intel_crtc
->config
->base
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
8042 val
|= PIPECONF_INTERLACED_ILK
;
8044 val
|= PIPECONF_PROGRESSIVE
;
8046 if (intel_crtc
->config
->limited_color_range
)
8047 val
|= PIPECONF_COLOR_RANGE_SELECT
;
8049 I915_WRITE(PIPECONF(pipe
), val
);
8050 POSTING_READ(PIPECONF(pipe
));
8053 static void haswell_set_pipeconf(struct drm_crtc
*crtc
)
8055 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
8056 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8057 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
8060 if (IS_HASWELL(dev_priv
) && intel_crtc
->config
->dither
)
8061 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
8063 if (intel_crtc
->config
->base
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
8064 val
|= PIPECONF_INTERLACED_ILK
;
8066 val
|= PIPECONF_PROGRESSIVE
;
8068 I915_WRITE(PIPECONF(cpu_transcoder
), val
);
8069 POSTING_READ(PIPECONF(cpu_transcoder
));
8072 static void haswell_set_pipemisc(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
);
8077 if (IS_BROADWELL(dev_priv
) || INTEL_INFO(dev_priv
)->gen
>= 9) {
8080 switch (intel_crtc
->config
->pipe_bpp
) {
8082 val
|= PIPEMISC_DITHER_6_BPC
;
8085 val
|= PIPEMISC_DITHER_8_BPC
;
8088 val
|= PIPEMISC_DITHER_10_BPC
;
8091 val
|= PIPEMISC_DITHER_12_BPC
;
8094 /* Case prevented by pipe_config_set_bpp. */
8098 if (intel_crtc
->config
->dither
)
8099 val
|= PIPEMISC_DITHER_ENABLE
| PIPEMISC_DITHER_TYPE_SP
;
8101 I915_WRITE(PIPEMISC(intel_crtc
->pipe
), val
);
8105 int ironlake_get_lanes_required(int target_clock
, int link_bw
, int bpp
)
8108 * Account for spread spectrum to avoid
8109 * oversubscribing the link. Max center spread
8110 * is 2.5%; use 5% for safety's sake.
8112 u32 bps
= target_clock
* bpp
* 21 / 20;
8113 return DIV_ROUND_UP(bps
, link_bw
* 8);
8116 static bool ironlake_needs_fb_cb_tune(struct dpll
*dpll
, int factor
)
8118 return i9xx_dpll_compute_m(dpll
) < factor
* dpll
->n
;
8121 static void ironlake_compute_dpll(struct intel_crtc
*intel_crtc
,
8122 struct intel_crtc_state
*crtc_state
,
8123 struct dpll
*reduced_clock
)
8125 struct drm_crtc
*crtc
= &intel_crtc
->base
;
8126 struct drm_device
*dev
= crtc
->dev
;
8127 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8131 /* Enable autotuning of the PLL clock (if permissible) */
8133 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
8134 if ((intel_panel_use_ssc(dev_priv
) &&
8135 dev_priv
->vbt
.lvds_ssc_freq
== 100000) ||
8136 (HAS_PCH_IBX(dev_priv
) && intel_is_dual_link_lvds(dev
)))
8138 } else if (crtc_state
->sdvo_tv_clock
)
8141 fp
= i9xx_dpll_compute_fp(&crtc_state
->dpll
);
8143 if (ironlake_needs_fb_cb_tune(&crtc_state
->dpll
, factor
))
8146 if (reduced_clock
) {
8147 fp2
= i9xx_dpll_compute_fp(reduced_clock
);
8149 if (reduced_clock
->m
< factor
* reduced_clock
->n
)
8157 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
))
8158 dpll
|= DPLLB_MODE_LVDS
;
8160 dpll
|= DPLLB_MODE_DAC_SERIAL
;
8162 dpll
|= (crtc_state
->pixel_multiplier
- 1)
8163 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
;
8165 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_SDVO
) ||
8166 intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_HDMI
))
8167 dpll
|= DPLL_SDVO_HIGH_SPEED
;
8169 if (intel_crtc_has_dp_encoder(crtc_state
))
8170 dpll
|= DPLL_SDVO_HIGH_SPEED
;
8173 * The high speed IO clock is only really required for
8174 * SDVO/HDMI/DP, but we also enable it for CRT to make it
8175 * possible to share the DPLL between CRT and HDMI. Enabling
8176 * the clock needlessly does no real harm, except use up a
8177 * bit of power potentially.
8179 * We'll limit this to IVB with 3 pipes, since it has only two
8180 * DPLLs and so DPLL sharing is the only way to get three pipes
8181 * driving PCH ports at the same time. On SNB we could do this,
8182 * and potentially avoid enabling the second DPLL, but it's not
8183 * clear if it''s a win or loss power wise. No point in doing
8184 * this on ILK at all since it has a fixed DPLL<->pipe mapping.
8186 if (INTEL_INFO(dev_priv
)->num_pipes
== 3 &&
8187 intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_ANALOG
))
8188 dpll
|= DPLL_SDVO_HIGH_SPEED
;
8190 /* compute bitmask from p1 value */
8191 dpll
|= (1 << (crtc_state
->dpll
.p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
8193 dpll
|= (1 << (crtc_state
->dpll
.p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
8195 switch (crtc_state
->dpll
.p2
) {
8197 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
8200 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
8203 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
8206 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
8210 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
8211 intel_panel_use_ssc(dev_priv
))
8212 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
8214 dpll
|= PLL_REF_INPUT_DREFCLK
;
8216 dpll
|= DPLL_VCO_ENABLE
;
8218 crtc_state
->dpll_hw_state
.dpll
= dpll
;
8219 crtc_state
->dpll_hw_state
.fp0
= fp
;
8220 crtc_state
->dpll_hw_state
.fp1
= fp2
;
8223 static int ironlake_crtc_compute_clock(struct intel_crtc
*crtc
,
8224 struct intel_crtc_state
*crtc_state
)
8226 struct drm_device
*dev
= crtc
->base
.dev
;
8227 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8228 const struct intel_limit
*limit
;
8229 int refclk
= 120000;
8231 memset(&crtc_state
->dpll_hw_state
, 0,
8232 sizeof(crtc_state
->dpll_hw_state
));
8234 crtc
->lowfreq_avail
= false;
8236 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
8237 if (!crtc_state
->has_pch_encoder
)
8240 if (intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
8241 if (intel_panel_use_ssc(dev_priv
)) {
8242 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n",
8243 dev_priv
->vbt
.lvds_ssc_freq
);
8244 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
8247 if (intel_is_dual_link_lvds(dev
)) {
8248 if (refclk
== 100000)
8249 limit
= &intel_limits_ironlake_dual_lvds_100m
;
8251 limit
= &intel_limits_ironlake_dual_lvds
;
8253 if (refclk
== 100000)
8254 limit
= &intel_limits_ironlake_single_lvds_100m
;
8256 limit
= &intel_limits_ironlake_single_lvds
;
8259 limit
= &intel_limits_ironlake_dac
;
8262 if (!crtc_state
->clock_set
&&
8263 !g4x_find_best_dpll(limit
, crtc_state
, crtc_state
->port_clock
,
8264 refclk
, NULL
, &crtc_state
->dpll
)) {
8265 DRM_ERROR("Couldn't find PLL settings for mode!\n");
8269 ironlake_compute_dpll(crtc
, crtc_state
, NULL
);
8271 if (!intel_get_shared_dpll(crtc
, crtc_state
, NULL
)) {
8272 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
8273 pipe_name(crtc
->pipe
));
8280 static void intel_pch_transcoder_get_m_n(struct intel_crtc
*crtc
,
8281 struct intel_link_m_n
*m_n
)
8283 struct drm_device
*dev
= crtc
->base
.dev
;
8284 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8285 enum pipe pipe
= crtc
->pipe
;
8287 m_n
->link_m
= I915_READ(PCH_TRANS_LINK_M1(pipe
));
8288 m_n
->link_n
= I915_READ(PCH_TRANS_LINK_N1(pipe
));
8289 m_n
->gmch_m
= I915_READ(PCH_TRANS_DATA_M1(pipe
))
8291 m_n
->gmch_n
= I915_READ(PCH_TRANS_DATA_N1(pipe
));
8292 m_n
->tu
= ((I915_READ(PCH_TRANS_DATA_M1(pipe
))
8293 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
8296 static void intel_cpu_transcoder_get_m_n(struct intel_crtc
*crtc
,
8297 enum transcoder transcoder
,
8298 struct intel_link_m_n
*m_n
,
8299 struct intel_link_m_n
*m2_n2
)
8301 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
8302 enum pipe pipe
= crtc
->pipe
;
8304 if (INTEL_GEN(dev_priv
) >= 5) {
8305 m_n
->link_m
= I915_READ(PIPE_LINK_M1(transcoder
));
8306 m_n
->link_n
= I915_READ(PIPE_LINK_N1(transcoder
));
8307 m_n
->gmch_m
= I915_READ(PIPE_DATA_M1(transcoder
))
8309 m_n
->gmch_n
= I915_READ(PIPE_DATA_N1(transcoder
));
8310 m_n
->tu
= ((I915_READ(PIPE_DATA_M1(transcoder
))
8311 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
8312 /* Read M2_N2 registers only for gen < 8 (M2_N2 available for
8313 * gen < 8) and if DRRS is supported (to make sure the
8314 * registers are not unnecessarily read).
8316 if (m2_n2
&& INTEL_GEN(dev_priv
) < 8 &&
8317 crtc
->config
->has_drrs
) {
8318 m2_n2
->link_m
= I915_READ(PIPE_LINK_M2(transcoder
));
8319 m2_n2
->link_n
= I915_READ(PIPE_LINK_N2(transcoder
));
8320 m2_n2
->gmch_m
= I915_READ(PIPE_DATA_M2(transcoder
))
8322 m2_n2
->gmch_n
= I915_READ(PIPE_DATA_N2(transcoder
));
8323 m2_n2
->tu
= ((I915_READ(PIPE_DATA_M2(transcoder
))
8324 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
8327 m_n
->link_m
= I915_READ(PIPE_LINK_M_G4X(pipe
));
8328 m_n
->link_n
= I915_READ(PIPE_LINK_N_G4X(pipe
));
8329 m_n
->gmch_m
= I915_READ(PIPE_DATA_M_G4X(pipe
))
8331 m_n
->gmch_n
= I915_READ(PIPE_DATA_N_G4X(pipe
));
8332 m_n
->tu
= ((I915_READ(PIPE_DATA_M_G4X(pipe
))
8333 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
8337 void intel_dp_get_m_n(struct intel_crtc
*crtc
,
8338 struct intel_crtc_state
*pipe_config
)
8340 if (pipe_config
->has_pch_encoder
)
8341 intel_pch_transcoder_get_m_n(crtc
, &pipe_config
->dp_m_n
);
8343 intel_cpu_transcoder_get_m_n(crtc
, pipe_config
->cpu_transcoder
,
8344 &pipe_config
->dp_m_n
,
8345 &pipe_config
->dp_m2_n2
);
8348 static void ironlake_get_fdi_m_n_config(struct intel_crtc
*crtc
,
8349 struct intel_crtc_state
*pipe_config
)
8351 intel_cpu_transcoder_get_m_n(crtc
, pipe_config
->cpu_transcoder
,
8352 &pipe_config
->fdi_m_n
, NULL
);
8355 static void skylake_get_pfit_config(struct intel_crtc
*crtc
,
8356 struct intel_crtc_state
*pipe_config
)
8358 struct drm_device
*dev
= crtc
->base
.dev
;
8359 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8360 struct intel_crtc_scaler_state
*scaler_state
= &pipe_config
->scaler_state
;
8361 uint32_t ps_ctrl
= 0;
8365 /* find scaler attached to this pipe */
8366 for (i
= 0; i
< crtc
->num_scalers
; i
++) {
8367 ps_ctrl
= I915_READ(SKL_PS_CTRL(crtc
->pipe
, i
));
8368 if (ps_ctrl
& PS_SCALER_EN
&& !(ps_ctrl
& PS_PLANE_SEL_MASK
)) {
8370 pipe_config
->pch_pfit
.enabled
= true;
8371 pipe_config
->pch_pfit
.pos
= I915_READ(SKL_PS_WIN_POS(crtc
->pipe
, i
));
8372 pipe_config
->pch_pfit
.size
= I915_READ(SKL_PS_WIN_SZ(crtc
->pipe
, i
));
8377 scaler_state
->scaler_id
= id
;
8379 scaler_state
->scaler_users
|= (1 << SKL_CRTC_INDEX
);
8381 scaler_state
->scaler_users
&= ~(1 << SKL_CRTC_INDEX
);
8386 skylake_get_initial_plane_config(struct intel_crtc
*crtc
,
8387 struct intel_initial_plane_config
*plane_config
)
8389 struct drm_device
*dev
= crtc
->base
.dev
;
8390 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8391 u32 val
, base
, offset
, stride_mult
, tiling
;
8392 int pipe
= crtc
->pipe
;
8393 int fourcc
, pixel_format
;
8394 unsigned int aligned_height
;
8395 struct drm_framebuffer
*fb
;
8396 struct intel_framebuffer
*intel_fb
;
8398 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
8400 DRM_DEBUG_KMS("failed to alloc fb\n");
8404 fb
= &intel_fb
->base
;
8408 val
= I915_READ(PLANE_CTL(pipe
, 0));
8409 if (!(val
& PLANE_CTL_ENABLE
))
8412 pixel_format
= val
& PLANE_CTL_FORMAT_MASK
;
8413 fourcc
= skl_format_to_fourcc(pixel_format
,
8414 val
& PLANE_CTL_ORDER_RGBX
,
8415 val
& PLANE_CTL_ALPHA_MASK
);
8416 fb
->format
= drm_format_info(fourcc
);
8418 tiling
= val
& PLANE_CTL_TILED_MASK
;
8420 case PLANE_CTL_TILED_LINEAR
:
8421 fb
->modifier
= DRM_FORMAT_MOD_LINEAR
;
8423 case PLANE_CTL_TILED_X
:
8424 plane_config
->tiling
= I915_TILING_X
;
8425 fb
->modifier
= I915_FORMAT_MOD_X_TILED
;
8427 case PLANE_CTL_TILED_Y
:
8428 fb
->modifier
= I915_FORMAT_MOD_Y_TILED
;
8430 case PLANE_CTL_TILED_YF
:
8431 fb
->modifier
= I915_FORMAT_MOD_Yf_TILED
;
8434 MISSING_CASE(tiling
);
8438 base
= I915_READ(PLANE_SURF(pipe
, 0)) & 0xfffff000;
8439 plane_config
->base
= base
;
8441 offset
= I915_READ(PLANE_OFFSET(pipe
, 0));
8443 val
= I915_READ(PLANE_SIZE(pipe
, 0));
8444 fb
->height
= ((val
>> 16) & 0xfff) + 1;
8445 fb
->width
= ((val
>> 0) & 0x1fff) + 1;
8447 val
= I915_READ(PLANE_STRIDE(pipe
, 0));
8448 stride_mult
= intel_fb_stride_alignment(fb
, 0);
8449 fb
->pitches
[0] = (val
& 0x3ff) * stride_mult
;
8451 aligned_height
= intel_fb_align_height(fb
, 0, fb
->height
);
8453 plane_config
->size
= fb
->pitches
[0] * aligned_height
;
8455 DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
8456 pipe_name(pipe
), fb
->width
, fb
->height
,
8457 fb
->format
->cpp
[0] * 8, base
, fb
->pitches
[0],
8458 plane_config
->size
);
8460 plane_config
->fb
= intel_fb
;
8467 static void ironlake_get_pfit_config(struct intel_crtc
*crtc
,
8468 struct intel_crtc_state
*pipe_config
)
8470 struct drm_device
*dev
= crtc
->base
.dev
;
8471 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8474 tmp
= I915_READ(PF_CTL(crtc
->pipe
));
8476 if (tmp
& PF_ENABLE
) {
8477 pipe_config
->pch_pfit
.enabled
= true;
8478 pipe_config
->pch_pfit
.pos
= I915_READ(PF_WIN_POS(crtc
->pipe
));
8479 pipe_config
->pch_pfit
.size
= I915_READ(PF_WIN_SZ(crtc
->pipe
));
8481 /* We currently do not free assignements of panel fitters on
8482 * ivb/hsw (since we don't use the higher upscaling modes which
8483 * differentiates them) so just WARN about this case for now. */
8484 if (IS_GEN7(dev_priv
)) {
8485 WARN_ON((tmp
& PF_PIPE_SEL_MASK_IVB
) !=
8486 PF_PIPE_SEL_IVB(crtc
->pipe
));
8492 ironlake_get_initial_plane_config(struct intel_crtc
*crtc
,
8493 struct intel_initial_plane_config
*plane_config
)
8495 struct drm_device
*dev
= crtc
->base
.dev
;
8496 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8497 u32 val
, base
, offset
;
8498 int pipe
= crtc
->pipe
;
8499 int fourcc
, pixel_format
;
8500 unsigned int aligned_height
;
8501 struct drm_framebuffer
*fb
;
8502 struct intel_framebuffer
*intel_fb
;
8504 val
= I915_READ(DSPCNTR(pipe
));
8505 if (!(val
& DISPLAY_PLANE_ENABLE
))
8508 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
8510 DRM_DEBUG_KMS("failed to alloc fb\n");
8514 fb
= &intel_fb
->base
;
8518 if (INTEL_GEN(dev_priv
) >= 4) {
8519 if (val
& DISPPLANE_TILED
) {
8520 plane_config
->tiling
= I915_TILING_X
;
8521 fb
->modifier
= I915_FORMAT_MOD_X_TILED
;
8525 pixel_format
= val
& DISPPLANE_PIXFORMAT_MASK
;
8526 fourcc
= i9xx_format_to_fourcc(pixel_format
);
8527 fb
->format
= drm_format_info(fourcc
);
8529 base
= I915_READ(DSPSURF(pipe
)) & 0xfffff000;
8530 if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
)) {
8531 offset
= I915_READ(DSPOFFSET(pipe
));
8533 if (plane_config
->tiling
)
8534 offset
= I915_READ(DSPTILEOFF(pipe
));
8536 offset
= I915_READ(DSPLINOFF(pipe
));
8538 plane_config
->base
= base
;
8540 val
= I915_READ(PIPESRC(pipe
));
8541 fb
->width
= ((val
>> 16) & 0xfff) + 1;
8542 fb
->height
= ((val
>> 0) & 0xfff) + 1;
8544 val
= I915_READ(DSPSTRIDE(pipe
));
8545 fb
->pitches
[0] = val
& 0xffffffc0;
8547 aligned_height
= intel_fb_align_height(fb
, 0, fb
->height
);
8549 plane_config
->size
= fb
->pitches
[0] * aligned_height
;
8551 DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
8552 pipe_name(pipe
), fb
->width
, fb
->height
,
8553 fb
->format
->cpp
[0] * 8, base
, fb
->pitches
[0],
8554 plane_config
->size
);
8556 plane_config
->fb
= intel_fb
;
8559 static bool ironlake_get_pipe_config(struct intel_crtc
*crtc
,
8560 struct intel_crtc_state
*pipe_config
)
8562 struct drm_device
*dev
= crtc
->base
.dev
;
8563 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8564 enum intel_display_power_domain power_domain
;
8568 power_domain
= POWER_DOMAIN_PIPE(crtc
->pipe
);
8569 if (!intel_display_power_get_if_enabled(dev_priv
, power_domain
))
8572 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
8573 pipe_config
->shared_dpll
= NULL
;
8576 tmp
= I915_READ(PIPECONF(crtc
->pipe
));
8577 if (!(tmp
& PIPECONF_ENABLE
))
8580 switch (tmp
& PIPECONF_BPC_MASK
) {
8582 pipe_config
->pipe_bpp
= 18;
8585 pipe_config
->pipe_bpp
= 24;
8587 case PIPECONF_10BPC
:
8588 pipe_config
->pipe_bpp
= 30;
8590 case PIPECONF_12BPC
:
8591 pipe_config
->pipe_bpp
= 36;
8597 if (tmp
& PIPECONF_COLOR_RANGE_SELECT
)
8598 pipe_config
->limited_color_range
= true;
8600 if (I915_READ(PCH_TRANSCONF(crtc
->pipe
)) & TRANS_ENABLE
) {
8601 struct intel_shared_dpll
*pll
;
8602 enum intel_dpll_id pll_id
;
8604 pipe_config
->has_pch_encoder
= true;
8606 tmp
= I915_READ(FDI_RX_CTL(crtc
->pipe
));
8607 pipe_config
->fdi_lanes
= ((FDI_DP_PORT_WIDTH_MASK
& tmp
) >>
8608 FDI_DP_PORT_WIDTH_SHIFT
) + 1;
8610 ironlake_get_fdi_m_n_config(crtc
, pipe_config
);
8612 if (HAS_PCH_IBX(dev_priv
)) {
8614 * The pipe->pch transcoder and pch transcoder->pll
8617 pll_id
= (enum intel_dpll_id
) crtc
->pipe
;
8619 tmp
= I915_READ(PCH_DPLL_SEL
);
8620 if (tmp
& TRANS_DPLLB_SEL(crtc
->pipe
))
8621 pll_id
= DPLL_ID_PCH_PLL_B
;
8623 pll_id
= DPLL_ID_PCH_PLL_A
;
8626 pipe_config
->shared_dpll
=
8627 intel_get_shared_dpll_by_id(dev_priv
, pll_id
);
8628 pll
= pipe_config
->shared_dpll
;
8630 WARN_ON(!pll
->funcs
.get_hw_state(dev_priv
, pll
,
8631 &pipe_config
->dpll_hw_state
));
8633 tmp
= pipe_config
->dpll_hw_state
.dpll
;
8634 pipe_config
->pixel_multiplier
=
8635 ((tmp
& PLL_REF_SDVO_HDMI_MULTIPLIER_MASK
)
8636 >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
) + 1;
8638 ironlake_pch_clock_get(crtc
, pipe_config
);
8640 pipe_config
->pixel_multiplier
= 1;
8643 intel_get_pipe_timings(crtc
, pipe_config
);
8644 intel_get_pipe_src_size(crtc
, pipe_config
);
8646 ironlake_get_pfit_config(crtc
, pipe_config
);
8651 intel_display_power_put(dev_priv
, power_domain
);
8656 static void assert_can_disable_lcpll(struct drm_i915_private
*dev_priv
)
8658 struct drm_device
*dev
= &dev_priv
->drm
;
8659 struct intel_crtc
*crtc
;
8661 for_each_intel_crtc(dev
, crtc
)
8662 I915_STATE_WARN(crtc
->active
, "CRTC for pipe %c enabled\n",
8663 pipe_name(crtc
->pipe
));
8665 I915_STATE_WARN(I915_READ(HSW_PWR_WELL_DRIVER
), "Power well on\n");
8666 I915_STATE_WARN(I915_READ(SPLL_CTL
) & SPLL_PLL_ENABLE
, "SPLL enabled\n");
8667 I915_STATE_WARN(I915_READ(WRPLL_CTL(0)) & WRPLL_PLL_ENABLE
, "WRPLL1 enabled\n");
8668 I915_STATE_WARN(I915_READ(WRPLL_CTL(1)) & WRPLL_PLL_ENABLE
, "WRPLL2 enabled\n");
8669 I915_STATE_WARN(I915_READ(PP_STATUS(0)) & PP_ON
, "Panel power on\n");
8670 I915_STATE_WARN(I915_READ(BLC_PWM_CPU_CTL2
) & BLM_PWM_ENABLE
,
8671 "CPU PWM1 enabled\n");
8672 if (IS_HASWELL(dev_priv
))
8673 I915_STATE_WARN(I915_READ(HSW_BLC_PWM2_CTL
) & BLM_PWM_ENABLE
,
8674 "CPU PWM2 enabled\n");
8675 I915_STATE_WARN(I915_READ(BLC_PWM_PCH_CTL1
) & BLM_PCH_PWM_ENABLE
,
8676 "PCH PWM1 enabled\n");
8677 I915_STATE_WARN(I915_READ(UTIL_PIN_CTL
) & UTIL_PIN_ENABLE
,
8678 "Utility pin enabled\n");
8679 I915_STATE_WARN(I915_READ(PCH_GTC_CTL
) & PCH_GTC_ENABLE
, "PCH GTC enabled\n");
8682 * In theory we can still leave IRQs enabled, as long as only the HPD
8683 * interrupts remain enabled. We used to check for that, but since it's
8684 * gen-specific and since we only disable LCPLL after we fully disable
8685 * the interrupts, the check below should be enough.
8687 I915_STATE_WARN(intel_irqs_enabled(dev_priv
), "IRQs enabled\n");
8690 static uint32_t hsw_read_dcomp(struct drm_i915_private
*dev_priv
)
8692 if (IS_HASWELL(dev_priv
))
8693 return I915_READ(D_COMP_HSW
);
8695 return I915_READ(D_COMP_BDW
);
8698 static void hsw_write_dcomp(struct drm_i915_private
*dev_priv
, uint32_t val
)
8700 if (IS_HASWELL(dev_priv
)) {
8701 mutex_lock(&dev_priv
->rps
.hw_lock
);
8702 if (sandybridge_pcode_write(dev_priv
, GEN6_PCODE_WRITE_D_COMP
,
8704 DRM_DEBUG_KMS("Failed to write to D_COMP\n");
8705 mutex_unlock(&dev_priv
->rps
.hw_lock
);
8707 I915_WRITE(D_COMP_BDW
, val
);
8708 POSTING_READ(D_COMP_BDW
);
8713 * This function implements pieces of two sequences from BSpec:
8714 * - Sequence for display software to disable LCPLL
8715 * - Sequence for display software to allow package C8+
8716 * The steps implemented here are just the steps that actually touch the LCPLL
8717 * register. Callers should take care of disabling all the display engine
8718 * functions, doing the mode unset, fixing interrupts, etc.
8720 static void hsw_disable_lcpll(struct drm_i915_private
*dev_priv
,
8721 bool switch_to_fclk
, bool allow_power_down
)
8725 assert_can_disable_lcpll(dev_priv
);
8727 val
= I915_READ(LCPLL_CTL
);
8729 if (switch_to_fclk
) {
8730 val
|= LCPLL_CD_SOURCE_FCLK
;
8731 I915_WRITE(LCPLL_CTL
, val
);
8733 if (wait_for_us(I915_READ(LCPLL_CTL
) &
8734 LCPLL_CD_SOURCE_FCLK_DONE
, 1))
8735 DRM_ERROR("Switching to FCLK failed\n");
8737 val
= I915_READ(LCPLL_CTL
);
8740 val
|= LCPLL_PLL_DISABLE
;
8741 I915_WRITE(LCPLL_CTL
, val
);
8742 POSTING_READ(LCPLL_CTL
);
8744 if (intel_wait_for_register(dev_priv
, LCPLL_CTL
, LCPLL_PLL_LOCK
, 0, 1))
8745 DRM_ERROR("LCPLL still locked\n");
8747 val
= hsw_read_dcomp(dev_priv
);
8748 val
|= D_COMP_COMP_DISABLE
;
8749 hsw_write_dcomp(dev_priv
, val
);
8752 if (wait_for((hsw_read_dcomp(dev_priv
) & D_COMP_RCOMP_IN_PROGRESS
) == 0,
8754 DRM_ERROR("D_COMP RCOMP still in progress\n");
8756 if (allow_power_down
) {
8757 val
= I915_READ(LCPLL_CTL
);
8758 val
|= LCPLL_POWER_DOWN_ALLOW
;
8759 I915_WRITE(LCPLL_CTL
, val
);
8760 POSTING_READ(LCPLL_CTL
);
8765 * Fully restores LCPLL, disallowing power down and switching back to LCPLL
8768 static void hsw_restore_lcpll(struct drm_i915_private
*dev_priv
)
8772 val
= I915_READ(LCPLL_CTL
);
8774 if ((val
& (LCPLL_PLL_LOCK
| LCPLL_PLL_DISABLE
| LCPLL_CD_SOURCE_FCLK
|
8775 LCPLL_POWER_DOWN_ALLOW
)) == LCPLL_PLL_LOCK
)
8779 * Make sure we're not on PC8 state before disabling PC8, otherwise
8780 * we'll hang the machine. To prevent PC8 state, just enable force_wake.
8782 intel_uncore_forcewake_get(dev_priv
, FORCEWAKE_ALL
);
8784 if (val
& LCPLL_POWER_DOWN_ALLOW
) {
8785 val
&= ~LCPLL_POWER_DOWN_ALLOW
;
8786 I915_WRITE(LCPLL_CTL
, val
);
8787 POSTING_READ(LCPLL_CTL
);
8790 val
= hsw_read_dcomp(dev_priv
);
8791 val
|= D_COMP_COMP_FORCE
;
8792 val
&= ~D_COMP_COMP_DISABLE
;
8793 hsw_write_dcomp(dev_priv
, val
);
8795 val
= I915_READ(LCPLL_CTL
);
8796 val
&= ~LCPLL_PLL_DISABLE
;
8797 I915_WRITE(LCPLL_CTL
, val
);
8799 if (intel_wait_for_register(dev_priv
,
8800 LCPLL_CTL
, LCPLL_PLL_LOCK
, LCPLL_PLL_LOCK
,
8802 DRM_ERROR("LCPLL not locked yet\n");
8804 if (val
& LCPLL_CD_SOURCE_FCLK
) {
8805 val
= I915_READ(LCPLL_CTL
);
8806 val
&= ~LCPLL_CD_SOURCE_FCLK
;
8807 I915_WRITE(LCPLL_CTL
, val
);
8809 if (wait_for_us((I915_READ(LCPLL_CTL
) &
8810 LCPLL_CD_SOURCE_FCLK_DONE
) == 0, 1))
8811 DRM_ERROR("Switching back to LCPLL failed\n");
8814 intel_uncore_forcewake_put(dev_priv
, FORCEWAKE_ALL
);
8815 intel_update_cdclk(dev_priv
);
8819 * Package states C8 and deeper are really deep PC states that can only be
8820 * reached when all the devices on the system allow it, so even if the graphics
8821 * device allows PC8+, it doesn't mean the system will actually get to these
8822 * states. Our driver only allows PC8+ when going into runtime PM.
8824 * The requirements for PC8+ are that all the outputs are disabled, the power
8825 * well is disabled and most interrupts are disabled, and these are also
8826 * requirements for runtime PM. When these conditions are met, we manually do
8827 * the other conditions: disable the interrupts, clocks and switch LCPLL refclk
8828 * to Fclk. If we're in PC8+ and we get an non-hotplug interrupt, we can hard
8831 * When we really reach PC8 or deeper states (not just when we allow it) we lose
8832 * the state of some registers, so when we come back from PC8+ we need to
8833 * restore this state. We don't get into PC8+ if we're not in RC6, so we don't
8834 * need to take care of the registers kept by RC6. Notice that this happens even
8835 * if we don't put the device in PCI D3 state (which is what currently happens
8836 * because of the runtime PM support).
8838 * For more, read "Display Sequences for Package C8" on the hardware
8841 void hsw_enable_pc8(struct drm_i915_private
*dev_priv
)
8845 DRM_DEBUG_KMS("Enabling package C8+\n");
8847 if (HAS_PCH_LPT_LP(dev_priv
)) {
8848 val
= I915_READ(SOUTH_DSPCLK_GATE_D
);
8849 val
&= ~PCH_LP_PARTITION_LEVEL_DISABLE
;
8850 I915_WRITE(SOUTH_DSPCLK_GATE_D
, val
);
8853 lpt_disable_clkout_dp(dev_priv
);
8854 hsw_disable_lcpll(dev_priv
, true, true);
8857 void hsw_disable_pc8(struct drm_i915_private
*dev_priv
)
8861 DRM_DEBUG_KMS("Disabling package C8+\n");
8863 hsw_restore_lcpll(dev_priv
);
8864 lpt_init_pch_refclk(dev_priv
);
8866 if (HAS_PCH_LPT_LP(dev_priv
)) {
8867 val
= I915_READ(SOUTH_DSPCLK_GATE_D
);
8868 val
|= PCH_LP_PARTITION_LEVEL_DISABLE
;
8869 I915_WRITE(SOUTH_DSPCLK_GATE_D
, val
);
8873 static int haswell_crtc_compute_clock(struct intel_crtc
*crtc
,
8874 struct intel_crtc_state
*crtc_state
)
8876 if (!intel_crtc_has_type(crtc_state
, INTEL_OUTPUT_DSI
)) {
8877 struct intel_encoder
*encoder
=
8878 intel_ddi_get_crtc_new_encoder(crtc_state
);
8880 if (!intel_get_shared_dpll(crtc
, crtc_state
, encoder
)) {
8881 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
8882 pipe_name(crtc
->pipe
));
8887 crtc
->lowfreq_avail
= false;
8892 static void cannonlake_get_ddi_pll(struct drm_i915_private
*dev_priv
,
8894 struct intel_crtc_state
*pipe_config
)
8896 enum intel_dpll_id id
;
8899 temp
= I915_READ(DPCLKA_CFGCR0
) & DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(port
);
8900 id
= temp
>> (port
* 2);
8902 if (WARN_ON(id
< SKL_DPLL0
|| id
> SKL_DPLL2
))
8905 pipe_config
->shared_dpll
= intel_get_shared_dpll_by_id(dev_priv
, id
);
8908 static void bxt_get_ddi_pll(struct drm_i915_private
*dev_priv
,
8910 struct intel_crtc_state
*pipe_config
)
8912 enum intel_dpll_id id
;
8916 id
= DPLL_ID_SKL_DPLL0
;
8919 id
= DPLL_ID_SKL_DPLL1
;
8922 id
= DPLL_ID_SKL_DPLL2
;
8925 DRM_ERROR("Incorrect port type\n");
8929 pipe_config
->shared_dpll
= intel_get_shared_dpll_by_id(dev_priv
, id
);
8932 static void skylake_get_ddi_pll(struct drm_i915_private
*dev_priv
,
8934 struct intel_crtc_state
*pipe_config
)
8936 enum intel_dpll_id id
;
8939 temp
= I915_READ(DPLL_CTRL2
) & DPLL_CTRL2_DDI_CLK_SEL_MASK(port
);
8940 id
= temp
>> (port
* 3 + 1);
8942 if (WARN_ON(id
< SKL_DPLL0
|| id
> SKL_DPLL3
))
8945 pipe_config
->shared_dpll
= intel_get_shared_dpll_by_id(dev_priv
, id
);
8948 static void haswell_get_ddi_pll(struct drm_i915_private
*dev_priv
,
8950 struct intel_crtc_state
*pipe_config
)
8952 enum intel_dpll_id id
;
8953 uint32_t ddi_pll_sel
= I915_READ(PORT_CLK_SEL(port
));
8955 switch (ddi_pll_sel
) {
8956 case PORT_CLK_SEL_WRPLL1
:
8957 id
= DPLL_ID_WRPLL1
;
8959 case PORT_CLK_SEL_WRPLL2
:
8960 id
= DPLL_ID_WRPLL2
;
8962 case PORT_CLK_SEL_SPLL
:
8965 case PORT_CLK_SEL_LCPLL_810
:
8966 id
= DPLL_ID_LCPLL_810
;
8968 case PORT_CLK_SEL_LCPLL_1350
:
8969 id
= DPLL_ID_LCPLL_1350
;
8971 case PORT_CLK_SEL_LCPLL_2700
:
8972 id
= DPLL_ID_LCPLL_2700
;
8975 MISSING_CASE(ddi_pll_sel
);
8977 case PORT_CLK_SEL_NONE
:
8981 pipe_config
->shared_dpll
= intel_get_shared_dpll_by_id(dev_priv
, id
);
8984 static bool hsw_get_transcoder_state(struct intel_crtc
*crtc
,
8985 struct intel_crtc_state
*pipe_config
,
8986 u64
*power_domain_mask
)
8988 struct drm_device
*dev
= crtc
->base
.dev
;
8989 struct drm_i915_private
*dev_priv
= to_i915(dev
);
8990 enum intel_display_power_domain power_domain
;
8994 * The pipe->transcoder mapping is fixed with the exception of the eDP
8995 * transcoder handled below.
8997 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
9000 * XXX: Do intel_display_power_get_if_enabled before reading this (for
9001 * consistency and less surprising code; it's in always on power).
9003 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP
));
9004 if (tmp
& TRANS_DDI_FUNC_ENABLE
) {
9005 enum pipe trans_edp_pipe
;
9006 switch (tmp
& TRANS_DDI_EDP_INPUT_MASK
) {
9008 WARN(1, "unknown pipe linked to edp transcoder\n");
9009 case TRANS_DDI_EDP_INPUT_A_ONOFF
:
9010 case TRANS_DDI_EDP_INPUT_A_ON
:
9011 trans_edp_pipe
= PIPE_A
;
9013 case TRANS_DDI_EDP_INPUT_B_ONOFF
:
9014 trans_edp_pipe
= PIPE_B
;
9016 case TRANS_DDI_EDP_INPUT_C_ONOFF
:
9017 trans_edp_pipe
= PIPE_C
;
9021 if (trans_edp_pipe
== crtc
->pipe
)
9022 pipe_config
->cpu_transcoder
= TRANSCODER_EDP
;
9025 power_domain
= POWER_DOMAIN_TRANSCODER(pipe_config
->cpu_transcoder
);
9026 if (!intel_display_power_get_if_enabled(dev_priv
, power_domain
))
9028 *power_domain_mask
|= BIT_ULL(power_domain
);
9030 tmp
= I915_READ(PIPECONF(pipe_config
->cpu_transcoder
));
9032 return tmp
& PIPECONF_ENABLE
;
9035 static bool bxt_get_dsi_transcoder_state(struct intel_crtc
*crtc
,
9036 struct intel_crtc_state
*pipe_config
,
9037 u64
*power_domain_mask
)
9039 struct drm_device
*dev
= crtc
->base
.dev
;
9040 struct drm_i915_private
*dev_priv
= to_i915(dev
);
9041 enum intel_display_power_domain power_domain
;
9043 enum transcoder cpu_transcoder
;
9046 for_each_port_masked(port
, BIT(PORT_A
) | BIT(PORT_C
)) {
9048 cpu_transcoder
= TRANSCODER_DSI_A
;
9050 cpu_transcoder
= TRANSCODER_DSI_C
;
9052 power_domain
= POWER_DOMAIN_TRANSCODER(cpu_transcoder
);
9053 if (!intel_display_power_get_if_enabled(dev_priv
, power_domain
))
9055 *power_domain_mask
|= BIT_ULL(power_domain
);
9058 * The PLL needs to be enabled with a valid divider
9059 * configuration, otherwise accessing DSI registers will hang
9060 * the machine. See BSpec North Display Engine
9061 * registers/MIPI[BXT]. We can break out here early, since we
9062 * need the same DSI PLL to be enabled for both DSI ports.
9064 if (!intel_dsi_pll_is_enabled(dev_priv
))
9067 /* XXX: this works for video mode only */
9068 tmp
= I915_READ(BXT_MIPI_PORT_CTRL(port
));
9069 if (!(tmp
& DPI_ENABLE
))
9072 tmp
= I915_READ(MIPI_CTRL(port
));
9073 if ((tmp
& BXT_PIPE_SELECT_MASK
) != BXT_PIPE_SELECT(crtc
->pipe
))
9076 pipe_config
->cpu_transcoder
= cpu_transcoder
;
9080 return transcoder_is_dsi(pipe_config
->cpu_transcoder
);
9083 static void haswell_get_ddi_port_state(struct intel_crtc
*crtc
,
9084 struct intel_crtc_state
*pipe_config
)
9086 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
9087 struct intel_shared_dpll
*pll
;
9091 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(pipe_config
->cpu_transcoder
));
9093 port
= (tmp
& TRANS_DDI_PORT_MASK
) >> TRANS_DDI_PORT_SHIFT
;
9095 if (IS_CANNONLAKE(dev_priv
))
9096 cannonlake_get_ddi_pll(dev_priv
, port
, pipe_config
);
9097 else if (IS_GEN9_BC(dev_priv
))
9098 skylake_get_ddi_pll(dev_priv
, port
, pipe_config
);
9099 else if (IS_GEN9_LP(dev_priv
))
9100 bxt_get_ddi_pll(dev_priv
, port
, pipe_config
);
9102 haswell_get_ddi_pll(dev_priv
, port
, pipe_config
);
9104 pll
= pipe_config
->shared_dpll
;
9106 WARN_ON(!pll
->funcs
.get_hw_state(dev_priv
, pll
,
9107 &pipe_config
->dpll_hw_state
));
9111 * Haswell has only FDI/PCH transcoder A. It is which is connected to
9112 * DDI E. So just check whether this pipe is wired to DDI E and whether
9113 * the PCH transcoder is on.
9115 if (INTEL_GEN(dev_priv
) < 9 &&
9116 (port
== PORT_E
) && I915_READ(LPT_TRANSCONF
) & TRANS_ENABLE
) {
9117 pipe_config
->has_pch_encoder
= true;
9119 tmp
= I915_READ(FDI_RX_CTL(PIPE_A
));
9120 pipe_config
->fdi_lanes
= ((FDI_DP_PORT_WIDTH_MASK
& tmp
) >>
9121 FDI_DP_PORT_WIDTH_SHIFT
) + 1;
9123 ironlake_get_fdi_m_n_config(crtc
, pipe_config
);
9127 static bool haswell_get_pipe_config(struct intel_crtc
*crtc
,
9128 struct intel_crtc_state
*pipe_config
)
9130 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
9131 enum intel_display_power_domain power_domain
;
9132 u64 power_domain_mask
;
9135 power_domain
= POWER_DOMAIN_PIPE(crtc
->pipe
);
9136 if (!intel_display_power_get_if_enabled(dev_priv
, power_domain
))
9138 power_domain_mask
= BIT_ULL(power_domain
);
9140 pipe_config
->shared_dpll
= NULL
;
9142 active
= hsw_get_transcoder_state(crtc
, pipe_config
, &power_domain_mask
);
9144 if (IS_GEN9_LP(dev_priv
) &&
9145 bxt_get_dsi_transcoder_state(crtc
, pipe_config
, &power_domain_mask
)) {
9153 if (!transcoder_is_dsi(pipe_config
->cpu_transcoder
)) {
9154 haswell_get_ddi_port_state(crtc
, pipe_config
);
9155 intel_get_pipe_timings(crtc
, pipe_config
);
9158 intel_get_pipe_src_size(crtc
, pipe_config
);
9160 pipe_config
->gamma_mode
=
9161 I915_READ(GAMMA_MODE(crtc
->pipe
)) & GAMMA_MODE_MODE_MASK
;
9163 if (INTEL_GEN(dev_priv
) >= 9) {
9164 intel_crtc_init_scalers(crtc
, pipe_config
);
9166 pipe_config
->scaler_state
.scaler_id
= -1;
9167 pipe_config
->scaler_state
.scaler_users
&= ~(1 << SKL_CRTC_INDEX
);
9170 power_domain
= POWER_DOMAIN_PIPE_PANEL_FITTER(crtc
->pipe
);
9171 if (intel_display_power_get_if_enabled(dev_priv
, power_domain
)) {
9172 power_domain_mask
|= BIT_ULL(power_domain
);
9173 if (INTEL_GEN(dev_priv
) >= 9)
9174 skylake_get_pfit_config(crtc
, pipe_config
);
9176 ironlake_get_pfit_config(crtc
, pipe_config
);
9179 if (IS_HASWELL(dev_priv
))
9180 pipe_config
->ips_enabled
= hsw_crtc_supports_ips(crtc
) &&
9181 (I915_READ(IPS_CTL
) & IPS_ENABLE
);
9183 if (pipe_config
->cpu_transcoder
!= TRANSCODER_EDP
&&
9184 !transcoder_is_dsi(pipe_config
->cpu_transcoder
)) {
9185 pipe_config
->pixel_multiplier
=
9186 I915_READ(PIPE_MULT(pipe_config
->cpu_transcoder
)) + 1;
9188 pipe_config
->pixel_multiplier
= 1;
9192 for_each_power_domain(power_domain
, power_domain_mask
)
9193 intel_display_power_put(dev_priv
, power_domain
);
9198 static u32
intel_cursor_base(const struct intel_plane_state
*plane_state
)
9200 struct drm_i915_private
*dev_priv
=
9201 to_i915(plane_state
->base
.plane
->dev
);
9202 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
9203 const struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
9206 if (INTEL_INFO(dev_priv
)->cursor_needs_physical
)
9207 base
= obj
->phys_handle
->busaddr
;
9209 base
= intel_plane_ggtt_offset(plane_state
);
9211 base
+= plane_state
->main
.offset
;
9213 /* ILK+ do this automagically */
9214 if (HAS_GMCH_DISPLAY(dev_priv
) &&
9215 plane_state
->base
.rotation
& DRM_MODE_ROTATE_180
)
9216 base
+= (plane_state
->base
.crtc_h
*
9217 plane_state
->base
.crtc_w
- 1) * fb
->format
->cpp
[0];
9222 static u32
intel_cursor_position(const struct intel_plane_state
*plane_state
)
9224 int x
= plane_state
->base
.crtc_x
;
9225 int y
= plane_state
->base
.crtc_y
;
9229 pos
|= CURSOR_POS_SIGN
<< CURSOR_X_SHIFT
;
9232 pos
|= x
<< CURSOR_X_SHIFT
;
9235 pos
|= CURSOR_POS_SIGN
<< CURSOR_Y_SHIFT
;
9238 pos
|= y
<< CURSOR_Y_SHIFT
;
9243 static bool intel_cursor_size_ok(const struct intel_plane_state
*plane_state
)
9245 const struct drm_mode_config
*config
=
9246 &plane_state
->base
.plane
->dev
->mode_config
;
9247 int width
= plane_state
->base
.crtc_w
;
9248 int height
= plane_state
->base
.crtc_h
;
9250 return width
> 0 && width
<= config
->cursor_width
&&
9251 height
> 0 && height
<= config
->cursor_height
;
9254 static int intel_check_cursor(struct intel_crtc_state
*crtc_state
,
9255 struct intel_plane_state
*plane_state
)
9257 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
9262 ret
= drm_plane_helper_check_state(&plane_state
->base
,
9264 DRM_PLANE_HELPER_NO_SCALING
,
9265 DRM_PLANE_HELPER_NO_SCALING
,
9273 if (fb
->modifier
!= DRM_FORMAT_MOD_LINEAR
) {
9274 DRM_DEBUG_KMS("cursor cannot be tiled\n");
9278 src_x
= plane_state
->base
.src_x
>> 16;
9279 src_y
= plane_state
->base
.src_y
>> 16;
9281 intel_add_fb_offsets(&src_x
, &src_y
, plane_state
, 0);
9282 offset
= intel_compute_tile_offset(&src_x
, &src_y
, plane_state
, 0);
9284 if (src_x
!= 0 || src_y
!= 0) {
9285 DRM_DEBUG_KMS("Arbitrary cursor panning not supported\n");
9289 plane_state
->main
.offset
= offset
;
9294 static u32
i845_cursor_ctl(const struct intel_crtc_state
*crtc_state
,
9295 const struct intel_plane_state
*plane_state
)
9297 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
9299 return CURSOR_ENABLE
|
9300 CURSOR_GAMMA_ENABLE
|
9301 CURSOR_FORMAT_ARGB
|
9302 CURSOR_STRIDE(fb
->pitches
[0]);
9305 static bool i845_cursor_size_ok(const struct intel_plane_state
*plane_state
)
9307 int width
= plane_state
->base
.crtc_w
;
9310 * 845g/865g are only limited by the width of their cursors,
9311 * the height is arbitrary up to the precision of the register.
9313 return intel_cursor_size_ok(plane_state
) && IS_ALIGNED(width
, 64);
9316 static int i845_check_cursor(struct intel_plane
*plane
,
9317 struct intel_crtc_state
*crtc_state
,
9318 struct intel_plane_state
*plane_state
)
9320 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
9323 ret
= intel_check_cursor(crtc_state
, plane_state
);
9327 /* if we want to turn off the cursor ignore width and height */
9331 /* Check for which cursor types we support */
9332 if (!i845_cursor_size_ok(plane_state
)) {
9333 DRM_DEBUG("Cursor dimension %dx%d not supported\n",
9334 plane_state
->base
.crtc_w
,
9335 plane_state
->base
.crtc_h
);
9339 switch (fb
->pitches
[0]) {
9346 DRM_DEBUG_KMS("Invalid cursor stride (%u)\n",
9351 plane_state
->ctl
= i845_cursor_ctl(crtc_state
, plane_state
);
9356 static void i845_update_cursor(struct intel_plane
*plane
,
9357 const struct intel_crtc_state
*crtc_state
,
9358 const struct intel_plane_state
*plane_state
)
9360 struct drm_i915_private
*dev_priv
= to_i915(plane
->base
.dev
);
9361 u32 cntl
= 0, base
= 0, pos
= 0, size
= 0;
9362 unsigned long irqflags
;
9364 if (plane_state
&& plane_state
->base
.visible
) {
9365 unsigned int width
= plane_state
->base
.crtc_w
;
9366 unsigned int height
= plane_state
->base
.crtc_h
;
9368 cntl
= plane_state
->ctl
;
9369 size
= (height
<< 12) | width
;
9371 base
= intel_cursor_base(plane_state
);
9372 pos
= intel_cursor_position(plane_state
);
9375 spin_lock_irqsave(&dev_priv
->uncore
.lock
, irqflags
);
9377 /* On these chipsets we can only modify the base/size/stride
9378 * whilst the cursor is disabled.
9380 if (plane
->cursor
.base
!= base
||
9381 plane
->cursor
.size
!= size
||
9382 plane
->cursor
.cntl
!= cntl
) {
9383 I915_WRITE_FW(CURCNTR(PIPE_A
), 0);
9384 I915_WRITE_FW(CURBASE(PIPE_A
), base
);
9385 I915_WRITE_FW(CURSIZE
, size
);
9386 I915_WRITE_FW(CURPOS(PIPE_A
), pos
);
9387 I915_WRITE_FW(CURCNTR(PIPE_A
), cntl
);
9389 plane
->cursor
.base
= base
;
9390 plane
->cursor
.size
= size
;
9391 plane
->cursor
.cntl
= cntl
;
9393 I915_WRITE_FW(CURPOS(PIPE_A
), pos
);
9396 POSTING_READ_FW(CURCNTR(PIPE_A
));
9398 spin_unlock_irqrestore(&dev_priv
->uncore
.lock
, irqflags
);
9401 static void i845_disable_cursor(struct intel_plane
*plane
,
9402 struct intel_crtc
*crtc
)
9404 i845_update_cursor(plane
, NULL
, NULL
);
9407 static u32
i9xx_cursor_ctl(const struct intel_crtc_state
*crtc_state
,
9408 const struct intel_plane_state
*plane_state
)
9410 struct drm_i915_private
*dev_priv
=
9411 to_i915(plane_state
->base
.plane
->dev
);
9412 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
9415 cntl
= MCURSOR_GAMMA_ENABLE
;
9417 if (HAS_DDI(dev_priv
))
9418 cntl
|= CURSOR_PIPE_CSC_ENABLE
;
9420 cntl
|= MCURSOR_PIPE_SELECT(crtc
->pipe
);
9422 switch (plane_state
->base
.crtc_w
) {
9424 cntl
|= CURSOR_MODE_64_ARGB_AX
;
9427 cntl
|= CURSOR_MODE_128_ARGB_AX
;
9430 cntl
|= CURSOR_MODE_256_ARGB_AX
;
9433 MISSING_CASE(plane_state
->base
.crtc_w
);
9437 if (plane_state
->base
.rotation
& DRM_MODE_ROTATE_180
)
9438 cntl
|= CURSOR_ROTATE_180
;
9443 static bool i9xx_cursor_size_ok(const struct intel_plane_state
*plane_state
)
9445 struct drm_i915_private
*dev_priv
=
9446 to_i915(plane_state
->base
.plane
->dev
);
9447 int width
= plane_state
->base
.crtc_w
;
9448 int height
= plane_state
->base
.crtc_h
;
9450 if (!intel_cursor_size_ok(plane_state
))
9453 /* Cursor width is limited to a few power-of-two sizes */
9464 * IVB+ have CUR_FBC_CTL which allows an arbitrary cursor
9465 * height from 8 lines up to the cursor width, when the
9466 * cursor is not rotated. Everything else requires square
9469 if (HAS_CUR_FBC(dev_priv
) &&
9470 plane_state
->base
.rotation
& DRM_MODE_ROTATE_0
) {
9471 if (height
< 8 || height
> width
)
9474 if (height
!= width
)
9481 static int i9xx_check_cursor(struct intel_plane
*plane
,
9482 struct intel_crtc_state
*crtc_state
,
9483 struct intel_plane_state
*plane_state
)
9485 struct drm_i915_private
*dev_priv
= to_i915(plane
->base
.dev
);
9486 const struct drm_framebuffer
*fb
= plane_state
->base
.fb
;
9487 enum pipe pipe
= plane
->pipe
;
9490 ret
= intel_check_cursor(crtc_state
, plane_state
);
9494 /* if we want to turn off the cursor ignore width and height */
9498 /* Check for which cursor types we support */
9499 if (!i9xx_cursor_size_ok(plane_state
)) {
9500 DRM_DEBUG("Cursor dimension %dx%d not supported\n",
9501 plane_state
->base
.crtc_w
,
9502 plane_state
->base
.crtc_h
);
9506 if (fb
->pitches
[0] != plane_state
->base
.crtc_w
* fb
->format
->cpp
[0]) {
9507 DRM_DEBUG_KMS("Invalid cursor stride (%u) (cursor width %d)\n",
9508 fb
->pitches
[0], plane_state
->base
.crtc_w
);
9513 * There's something wrong with the cursor on CHV pipe C.
9514 * If it straddles the left edge of the screen then
9515 * moving it away from the edge or disabling it often
9516 * results in a pipe underrun, and often that can lead to
9517 * dead pipe (constant underrun reported, and it scans
9518 * out just a solid color). To recover from that, the
9519 * display power well must be turned off and on again.
9520 * Refuse the put the cursor into that compromised position.
9522 if (IS_CHERRYVIEW(dev_priv
) && pipe
== PIPE_C
&&
9523 plane_state
->base
.visible
&& plane_state
->base
.crtc_x
< 0) {
9524 DRM_DEBUG_KMS("CHV cursor C not allowed to straddle the left screen edge\n");
9528 plane_state
->ctl
= i9xx_cursor_ctl(crtc_state
, plane_state
);
9533 static void i9xx_update_cursor(struct intel_plane
*plane
,
9534 const struct intel_crtc_state
*crtc_state
,
9535 const struct intel_plane_state
*plane_state
)
9537 struct drm_i915_private
*dev_priv
= to_i915(plane
->base
.dev
);
9538 enum pipe pipe
= plane
->pipe
;
9539 u32 cntl
= 0, base
= 0, pos
= 0, fbc_ctl
= 0;
9540 unsigned long irqflags
;
9542 if (plane_state
&& plane_state
->base
.visible
) {
9543 cntl
= plane_state
->ctl
;
9545 if (plane_state
->base
.crtc_h
!= plane_state
->base
.crtc_w
)
9546 fbc_ctl
= CUR_FBC_CTL_EN
| (plane_state
->base
.crtc_h
- 1);
9548 base
= intel_cursor_base(plane_state
);
9549 pos
= intel_cursor_position(plane_state
);
9552 spin_lock_irqsave(&dev_priv
->uncore
.lock
, irqflags
);
9555 * On some platforms writing CURCNTR first will also
9556 * cause CURPOS to be armed by the CURBASE write.
9557 * Without the CURCNTR write the CURPOS write would
9560 * CURCNTR and CUR_FBC_CTL are always
9561 * armed by the CURBASE write only.
9563 if (plane
->cursor
.base
!= base
||
9564 plane
->cursor
.size
!= fbc_ctl
||
9565 plane
->cursor
.cntl
!= cntl
) {
9566 I915_WRITE_FW(CURCNTR(pipe
), cntl
);
9567 if (HAS_CUR_FBC(dev_priv
))
9568 I915_WRITE_FW(CUR_FBC_CTL(pipe
), fbc_ctl
);
9569 I915_WRITE_FW(CURPOS(pipe
), pos
);
9570 I915_WRITE_FW(CURBASE(pipe
), base
);
9572 plane
->cursor
.base
= base
;
9573 plane
->cursor
.size
= fbc_ctl
;
9574 plane
->cursor
.cntl
= cntl
;
9576 I915_WRITE_FW(CURPOS(pipe
), pos
);
9579 POSTING_READ_FW(CURBASE(pipe
));
9581 spin_unlock_irqrestore(&dev_priv
->uncore
.lock
, irqflags
);
9584 static void i9xx_disable_cursor(struct intel_plane
*plane
,
9585 struct intel_crtc
*crtc
)
9587 i9xx_update_cursor(plane
, NULL
, NULL
);
9591 /* VESA 640x480x72Hz mode to set on the pipe */
9592 static struct drm_display_mode load_detect_mode
= {
9593 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT
, 31500, 640, 664,
9594 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
9597 struct drm_framebuffer
*
9598 intel_framebuffer_create(struct drm_i915_gem_object
*obj
,
9599 struct drm_mode_fb_cmd2
*mode_cmd
)
9601 struct intel_framebuffer
*intel_fb
;
9604 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
9606 return ERR_PTR(-ENOMEM
);
9608 ret
= intel_framebuffer_init(intel_fb
, obj
, mode_cmd
);
9612 return &intel_fb
->base
;
9616 return ERR_PTR(ret
);
9620 intel_framebuffer_pitch_for_width(int width
, int bpp
)
9622 u32 pitch
= DIV_ROUND_UP(width
* bpp
, 8);
9623 return ALIGN(pitch
, 64);
9627 intel_framebuffer_size_for_mode(struct drm_display_mode
*mode
, int bpp
)
9629 u32 pitch
= intel_framebuffer_pitch_for_width(mode
->hdisplay
, bpp
);
9630 return PAGE_ALIGN(pitch
* mode
->vdisplay
);
9633 static struct drm_framebuffer
*
9634 intel_framebuffer_create_for_mode(struct drm_device
*dev
,
9635 struct drm_display_mode
*mode
,
9638 struct drm_framebuffer
*fb
;
9639 struct drm_i915_gem_object
*obj
;
9640 struct drm_mode_fb_cmd2 mode_cmd
= { 0 };
9642 obj
= i915_gem_object_create(to_i915(dev
),
9643 intel_framebuffer_size_for_mode(mode
, bpp
));
9645 return ERR_CAST(obj
);
9647 mode_cmd
.width
= mode
->hdisplay
;
9648 mode_cmd
.height
= mode
->vdisplay
;
9649 mode_cmd
.pitches
[0] = intel_framebuffer_pitch_for_width(mode_cmd
.width
,
9651 mode_cmd
.pixel_format
= drm_mode_legacy_fb_format(bpp
, depth
);
9653 fb
= intel_framebuffer_create(obj
, &mode_cmd
);
9655 i915_gem_object_put(obj
);
9660 static struct drm_framebuffer
*
9661 mode_fits_in_fbdev(struct drm_device
*dev
,
9662 struct drm_display_mode
*mode
)
9664 #ifdef CONFIG_DRM_FBDEV_EMULATION
9665 struct drm_i915_private
*dev_priv
= to_i915(dev
);
9666 struct drm_i915_gem_object
*obj
;
9667 struct drm_framebuffer
*fb
;
9669 if (!dev_priv
->fbdev
)
9672 if (!dev_priv
->fbdev
->fb
)
9675 obj
= dev_priv
->fbdev
->fb
->obj
;
9678 fb
= &dev_priv
->fbdev
->fb
->base
;
9679 if (fb
->pitches
[0] < intel_framebuffer_pitch_for_width(mode
->hdisplay
,
9680 fb
->format
->cpp
[0] * 8))
9683 if (obj
->base
.size
< mode
->vdisplay
* fb
->pitches
[0])
9686 drm_framebuffer_reference(fb
);
9693 static int intel_modeset_setup_plane_state(struct drm_atomic_state
*state
,
9694 struct drm_crtc
*crtc
,
9695 struct drm_display_mode
*mode
,
9696 struct drm_framebuffer
*fb
,
9699 struct drm_plane_state
*plane_state
;
9700 int hdisplay
, vdisplay
;
9703 plane_state
= drm_atomic_get_plane_state(state
, crtc
->primary
);
9704 if (IS_ERR(plane_state
))
9705 return PTR_ERR(plane_state
);
9708 drm_mode_get_hv_timing(mode
, &hdisplay
, &vdisplay
);
9710 hdisplay
= vdisplay
= 0;
9712 ret
= drm_atomic_set_crtc_for_plane(plane_state
, fb
? crtc
: NULL
);
9715 drm_atomic_set_fb_for_plane(plane_state
, fb
);
9716 plane_state
->crtc_x
= 0;
9717 plane_state
->crtc_y
= 0;
9718 plane_state
->crtc_w
= hdisplay
;
9719 plane_state
->crtc_h
= vdisplay
;
9720 plane_state
->src_x
= x
<< 16;
9721 plane_state
->src_y
= y
<< 16;
9722 plane_state
->src_w
= hdisplay
<< 16;
9723 plane_state
->src_h
= vdisplay
<< 16;
9728 int intel_get_load_detect_pipe(struct drm_connector
*connector
,
9729 struct drm_display_mode
*mode
,
9730 struct intel_load_detect_pipe
*old
,
9731 struct drm_modeset_acquire_ctx
*ctx
)
9733 struct intel_crtc
*intel_crtc
;
9734 struct intel_encoder
*intel_encoder
=
9735 intel_attached_encoder(connector
);
9736 struct drm_crtc
*possible_crtc
;
9737 struct drm_encoder
*encoder
= &intel_encoder
->base
;
9738 struct drm_crtc
*crtc
= NULL
;
9739 struct drm_device
*dev
= encoder
->dev
;
9740 struct drm_i915_private
*dev_priv
= to_i915(dev
);
9741 struct drm_framebuffer
*fb
;
9742 struct drm_mode_config
*config
= &dev
->mode_config
;
9743 struct drm_atomic_state
*state
= NULL
, *restore_state
= NULL
;
9744 struct drm_connector_state
*connector_state
;
9745 struct intel_crtc_state
*crtc_state
;
9748 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
9749 connector
->base
.id
, connector
->name
,
9750 encoder
->base
.id
, encoder
->name
);
9752 old
->restore_state
= NULL
;
9754 WARN_ON(!drm_modeset_is_locked(&config
->connection_mutex
));
9757 * Algorithm gets a little messy:
9759 * - if the connector already has an assigned crtc, use it (but make
9760 * sure it's on first)
9762 * - try to find the first unused crtc that can drive this connector,
9763 * and use that if we find one
9766 /* See if we already have a CRTC for this connector */
9767 if (connector
->state
->crtc
) {
9768 crtc
= connector
->state
->crtc
;
9770 ret
= drm_modeset_lock(&crtc
->mutex
, ctx
);
9774 /* Make sure the crtc and connector are running */
9778 /* Find an unused one (if possible) */
9779 for_each_crtc(dev
, possible_crtc
) {
9781 if (!(encoder
->possible_crtcs
& (1 << i
)))
9784 ret
= drm_modeset_lock(&possible_crtc
->mutex
, ctx
);
9788 if (possible_crtc
->state
->enable
) {
9789 drm_modeset_unlock(&possible_crtc
->mutex
);
9793 crtc
= possible_crtc
;
9798 * If we didn't find an unused CRTC, don't use any.
9801 DRM_DEBUG_KMS("no pipe available for load-detect\n");
9807 intel_crtc
= to_intel_crtc(crtc
);
9809 ret
= drm_modeset_lock(&crtc
->primary
->mutex
, ctx
);
9813 state
= drm_atomic_state_alloc(dev
);
9814 restore_state
= drm_atomic_state_alloc(dev
);
9815 if (!state
|| !restore_state
) {
9820 state
->acquire_ctx
= ctx
;
9821 restore_state
->acquire_ctx
= ctx
;
9823 connector_state
= drm_atomic_get_connector_state(state
, connector
);
9824 if (IS_ERR(connector_state
)) {
9825 ret
= PTR_ERR(connector_state
);
9829 ret
= drm_atomic_set_crtc_for_connector(connector_state
, crtc
);
9833 crtc_state
= intel_atomic_get_crtc_state(state
, intel_crtc
);
9834 if (IS_ERR(crtc_state
)) {
9835 ret
= PTR_ERR(crtc_state
);
9839 crtc_state
->base
.active
= crtc_state
->base
.enable
= true;
9842 mode
= &load_detect_mode
;
9844 /* We need a framebuffer large enough to accommodate all accesses
9845 * that the plane may generate whilst we perform load detection.
9846 * We can not rely on the fbcon either being present (we get called
9847 * during its initialisation to detect all boot displays, or it may
9848 * not even exist) or that it is large enough to satisfy the
9851 fb
= mode_fits_in_fbdev(dev
, mode
);
9853 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
9854 fb
= intel_framebuffer_create_for_mode(dev
, mode
, 24, 32);
9856 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
9858 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
9863 ret
= intel_modeset_setup_plane_state(state
, crtc
, mode
, fb
, 0, 0);
9867 drm_framebuffer_unreference(fb
);
9869 ret
= drm_atomic_set_mode_for_crtc(&crtc_state
->base
, mode
);
9873 ret
= PTR_ERR_OR_ZERO(drm_atomic_get_connector_state(restore_state
, connector
));
9875 ret
= PTR_ERR_OR_ZERO(drm_atomic_get_crtc_state(restore_state
, crtc
));
9877 ret
= PTR_ERR_OR_ZERO(drm_atomic_get_plane_state(restore_state
, crtc
->primary
));
9879 DRM_DEBUG_KMS("Failed to create a copy of old state to restore: %i\n", ret
);
9883 ret
= drm_atomic_commit(state
);
9885 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
9889 old
->restore_state
= restore_state
;
9890 drm_atomic_state_put(state
);
9892 /* let the connector get through one full cycle before testing */
9893 intel_wait_for_vblank(dev_priv
, intel_crtc
->pipe
);
9898 drm_atomic_state_put(state
);
9901 if (restore_state
) {
9902 drm_atomic_state_put(restore_state
);
9903 restore_state
= NULL
;
9906 if (ret
== -EDEADLK
)
9912 void intel_release_load_detect_pipe(struct drm_connector
*connector
,
9913 struct intel_load_detect_pipe
*old
,
9914 struct drm_modeset_acquire_ctx
*ctx
)
9916 struct intel_encoder
*intel_encoder
=
9917 intel_attached_encoder(connector
);
9918 struct drm_encoder
*encoder
= &intel_encoder
->base
;
9919 struct drm_atomic_state
*state
= old
->restore_state
;
9922 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
9923 connector
->base
.id
, connector
->name
,
9924 encoder
->base
.id
, encoder
->name
);
9929 ret
= drm_atomic_helper_commit_duplicated_state(state
, ctx
);
9931 DRM_DEBUG_KMS("Couldn't release load detect pipe: %i\n", ret
);
9932 drm_atomic_state_put(state
);
9935 static int i9xx_pll_refclk(struct drm_device
*dev
,
9936 const struct intel_crtc_state
*pipe_config
)
9938 struct drm_i915_private
*dev_priv
= to_i915(dev
);
9939 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
9941 if ((dpll
& PLL_REF_INPUT_MASK
) == PLLB_REF_INPUT_SPREADSPECTRUMIN
)
9942 return dev_priv
->vbt
.lvds_ssc_freq
;
9943 else if (HAS_PCH_SPLIT(dev_priv
))
9945 else if (!IS_GEN2(dev_priv
))
9951 /* Returns the clock of the currently programmed mode of the given pipe. */
9952 static void i9xx_crtc_clock_get(struct intel_crtc
*crtc
,
9953 struct intel_crtc_state
*pipe_config
)
9955 struct drm_device
*dev
= crtc
->base
.dev
;
9956 struct drm_i915_private
*dev_priv
= to_i915(dev
);
9957 int pipe
= pipe_config
->cpu_transcoder
;
9958 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
9962 int refclk
= i9xx_pll_refclk(dev
, pipe_config
);
9964 if ((dpll
& DISPLAY_RATE_SELECT_FPA1
) == 0)
9965 fp
= pipe_config
->dpll_hw_state
.fp0
;
9967 fp
= pipe_config
->dpll_hw_state
.fp1
;
9969 clock
.m1
= (fp
& FP_M1_DIV_MASK
) >> FP_M1_DIV_SHIFT
;
9970 if (IS_PINEVIEW(dev_priv
)) {
9971 clock
.n
= ffs((fp
& FP_N_PINEVIEW_DIV_MASK
) >> FP_N_DIV_SHIFT
) - 1;
9972 clock
.m2
= (fp
& FP_M2_PINEVIEW_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
9974 clock
.n
= (fp
& FP_N_DIV_MASK
) >> FP_N_DIV_SHIFT
;
9975 clock
.m2
= (fp
& FP_M2_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
9978 if (!IS_GEN2(dev_priv
)) {
9979 if (IS_PINEVIEW(dev_priv
))
9980 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW
) >>
9981 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
);
9983 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK
) >>
9984 DPLL_FPA01_P1_POST_DIV_SHIFT
);
9986 switch (dpll
& DPLL_MODE_MASK
) {
9987 case DPLLB_MODE_DAC_SERIAL
:
9988 clock
.p2
= dpll
& DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
?
9991 case DPLLB_MODE_LVDS
:
9992 clock
.p2
= dpll
& DPLLB_LVDS_P2_CLOCK_DIV_7
?
9996 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
9997 "mode\n", (int)(dpll
& DPLL_MODE_MASK
));
10001 if (IS_PINEVIEW(dev_priv
))
10002 port_clock
= pnv_calc_dpll_params(refclk
, &clock
);
10004 port_clock
= i9xx_calc_dpll_params(refclk
, &clock
);
10006 u32 lvds
= IS_I830(dev_priv
) ? 0 : I915_READ(LVDS
);
10007 bool is_lvds
= (pipe
== 1) && (lvds
& LVDS_PORT_EN
);
10010 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS
) >>
10011 DPLL_FPA01_P1_POST_DIV_SHIFT
);
10013 if (lvds
& LVDS_CLKB_POWER_UP
)
10018 if (dpll
& PLL_P1_DIVIDE_BY_TWO
)
10021 clock
.p1
= ((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830
) >>
10022 DPLL_FPA01_P1_POST_DIV_SHIFT
) + 2;
10024 if (dpll
& PLL_P2_DIVIDE_BY_4
)
10030 port_clock
= i9xx_calc_dpll_params(refclk
, &clock
);
10034 * This value includes pixel_multiplier. We will use
10035 * port_clock to compute adjusted_mode.crtc_clock in the
10036 * encoder's get_config() function.
10038 pipe_config
->port_clock
= port_clock
;
10041 int intel_dotclock_calculate(int link_freq
,
10042 const struct intel_link_m_n
*m_n
)
10045 * The calculation for the data clock is:
10046 * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp
10047 * But we want to avoid losing precison if possible, so:
10048 * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp))
10050 * and the link clock is simpler:
10051 * link_clock = (m * link_clock) / n
10057 return div_u64((u64
)m_n
->link_m
* link_freq
, m_n
->link_n
);
10060 static void ironlake_pch_clock_get(struct intel_crtc
*crtc
,
10061 struct intel_crtc_state
*pipe_config
)
10063 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
10065 /* read out port_clock from the DPLL */
10066 i9xx_crtc_clock_get(crtc
, pipe_config
);
10069 * In case there is an active pipe without active ports,
10070 * we may need some idea for the dotclock anyway.
10071 * Calculate one based on the FDI configuration.
10073 pipe_config
->base
.adjusted_mode
.crtc_clock
=
10074 intel_dotclock_calculate(intel_fdi_link_freq(dev_priv
, pipe_config
),
10075 &pipe_config
->fdi_m_n
);
10078 /** Returns the currently programmed mode of the given pipe. */
10079 struct drm_display_mode
*intel_crtc_mode_get(struct drm_device
*dev
,
10080 struct drm_crtc
*crtc
)
10082 struct drm_i915_private
*dev_priv
= to_i915(dev
);
10083 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10084 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
10085 struct drm_display_mode
*mode
;
10086 struct intel_crtc_state
*pipe_config
;
10087 int htot
= I915_READ(HTOTAL(cpu_transcoder
));
10088 int hsync
= I915_READ(HSYNC(cpu_transcoder
));
10089 int vtot
= I915_READ(VTOTAL(cpu_transcoder
));
10090 int vsync
= I915_READ(VSYNC(cpu_transcoder
));
10091 enum pipe pipe
= intel_crtc
->pipe
;
10093 mode
= kzalloc(sizeof(*mode
), GFP_KERNEL
);
10097 pipe_config
= kzalloc(sizeof(*pipe_config
), GFP_KERNEL
);
10098 if (!pipe_config
) {
10104 * Construct a pipe_config sufficient for getting the clock info
10105 * back out of crtc_clock_get.
10107 * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need
10108 * to use a real value here instead.
10110 pipe_config
->cpu_transcoder
= (enum transcoder
) pipe
;
10111 pipe_config
->pixel_multiplier
= 1;
10112 pipe_config
->dpll_hw_state
.dpll
= I915_READ(DPLL(pipe
));
10113 pipe_config
->dpll_hw_state
.fp0
= I915_READ(FP0(pipe
));
10114 pipe_config
->dpll_hw_state
.fp1
= I915_READ(FP1(pipe
));
10115 i9xx_crtc_clock_get(intel_crtc
, pipe_config
);
10117 mode
->clock
= pipe_config
->port_clock
/ pipe_config
->pixel_multiplier
;
10118 mode
->hdisplay
= (htot
& 0xffff) + 1;
10119 mode
->htotal
= ((htot
& 0xffff0000) >> 16) + 1;
10120 mode
->hsync_start
= (hsync
& 0xffff) + 1;
10121 mode
->hsync_end
= ((hsync
& 0xffff0000) >> 16) + 1;
10122 mode
->vdisplay
= (vtot
& 0xffff) + 1;
10123 mode
->vtotal
= ((vtot
& 0xffff0000) >> 16) + 1;
10124 mode
->vsync_start
= (vsync
& 0xffff) + 1;
10125 mode
->vsync_end
= ((vsync
& 0xffff0000) >> 16) + 1;
10127 drm_mode_set_name(mode
);
10129 kfree(pipe_config
);
10134 static void intel_crtc_destroy(struct drm_crtc
*crtc
)
10136 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10137 struct drm_device
*dev
= crtc
->dev
;
10138 struct intel_flip_work
*work
;
10140 spin_lock_irq(&dev
->event_lock
);
10141 work
= intel_crtc
->flip_work
;
10142 intel_crtc
->flip_work
= NULL
;
10143 spin_unlock_irq(&dev
->event_lock
);
10146 cancel_work_sync(&work
->mmio_work
);
10147 cancel_work_sync(&work
->unpin_work
);
10151 drm_crtc_cleanup(crtc
);
10156 static void intel_unpin_work_fn(struct work_struct
*__work
)
10158 struct intel_flip_work
*work
=
10159 container_of(__work
, struct intel_flip_work
, unpin_work
);
10160 struct intel_crtc
*crtc
= to_intel_crtc(work
->crtc
);
10161 struct drm_device
*dev
= crtc
->base
.dev
;
10162 struct drm_plane
*primary
= crtc
->base
.primary
;
10164 if (is_mmio_work(work
))
10165 flush_work(&work
->mmio_work
);
10167 mutex_lock(&dev
->struct_mutex
);
10168 intel_unpin_fb_vma(work
->old_vma
);
10169 i915_gem_object_put(work
->pending_flip_obj
);
10170 mutex_unlock(&dev
->struct_mutex
);
10172 i915_gem_request_put(work
->flip_queued_req
);
10174 intel_frontbuffer_flip_complete(to_i915(dev
),
10175 to_intel_plane(primary
)->frontbuffer_bit
);
10176 intel_fbc_post_update(crtc
);
10177 drm_framebuffer_unreference(work
->old_fb
);
10179 BUG_ON(atomic_read(&crtc
->unpin_work_count
) == 0);
10180 atomic_dec(&crtc
->unpin_work_count
);
10185 /* Is 'a' after or equal to 'b'? */
10186 static bool g4x_flip_count_after_eq(u32 a
, u32 b
)
10188 return !((a
- b
) & 0x80000000);
10191 static bool __pageflip_finished_cs(struct intel_crtc
*crtc
,
10192 struct intel_flip_work
*work
)
10194 struct drm_device
*dev
= crtc
->base
.dev
;
10195 struct drm_i915_private
*dev_priv
= to_i915(dev
);
10197 if (abort_flip_on_reset(crtc
))
10201 * The relevant registers doen't exist on pre-ctg.
10202 * As the flip done interrupt doesn't trigger for mmio
10203 * flips on gmch platforms, a flip count check isn't
10204 * really needed there. But since ctg has the registers,
10205 * include it in the check anyway.
10207 if (INTEL_GEN(dev_priv
) < 5 && !IS_G4X(dev_priv
))
10211 * BDW signals flip done immediately if the plane
10212 * is disabled, even if the plane enable is already
10213 * armed to occur at the next vblank :(
10217 * A DSPSURFLIVE check isn't enough in case the mmio and CS flips
10218 * used the same base address. In that case the mmio flip might
10219 * have completed, but the CS hasn't even executed the flip yet.
10221 * A flip count check isn't enough as the CS might have updated
10222 * the base address just after start of vblank, but before we
10223 * managed to process the interrupt. This means we'd complete the
10224 * CS flip too soon.
10226 * Combining both checks should get us a good enough result. It may
10227 * still happen that the CS flip has been executed, but has not
10228 * yet actually completed. But in case the base address is the same
10229 * anyway, we don't really care.
10231 return (I915_READ(DSPSURFLIVE(crtc
->plane
)) & ~0xfff) ==
10232 crtc
->flip_work
->gtt_offset
&&
10233 g4x_flip_count_after_eq(I915_READ(PIPE_FLIPCOUNT_G4X(crtc
->pipe
)),
10234 crtc
->flip_work
->flip_count
);
10238 __pageflip_finished_mmio(struct intel_crtc
*crtc
,
10239 struct intel_flip_work
*work
)
10242 * MMIO work completes when vblank is different from
10243 * flip_queued_vblank.
10245 * Reset counter value doesn't matter, this is handled by
10246 * i915_wait_request finishing early, so no need to handle
10249 return intel_crtc_get_vblank_counter(crtc
) != work
->flip_queued_vblank
;
10253 static bool pageflip_finished(struct intel_crtc
*crtc
,
10254 struct intel_flip_work
*work
)
10256 if (!atomic_read(&work
->pending
))
10261 if (is_mmio_work(work
))
10262 return __pageflip_finished_mmio(crtc
, work
);
10264 return __pageflip_finished_cs(crtc
, work
);
10267 void intel_finish_page_flip_cs(struct drm_i915_private
*dev_priv
, int pipe
)
10269 struct drm_device
*dev
= &dev_priv
->drm
;
10270 struct intel_crtc
*crtc
= intel_get_crtc_for_pipe(dev_priv
, pipe
);
10271 struct intel_flip_work
*work
;
10272 unsigned long flags
;
10274 /* Ignore early vblank irqs */
10279 * This is called both by irq handlers and the reset code (to complete
10280 * lost pageflips) so needs the full irqsave spinlocks.
10282 spin_lock_irqsave(&dev
->event_lock
, flags
);
10283 work
= crtc
->flip_work
;
10285 if (work
!= NULL
&&
10286 !is_mmio_work(work
) &&
10287 pageflip_finished(crtc
, work
))
10288 page_flip_completed(crtc
);
10290 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
10293 void intel_finish_page_flip_mmio(struct drm_i915_private
*dev_priv
, int pipe
)
10295 struct drm_device
*dev
= &dev_priv
->drm
;
10296 struct intel_crtc
*crtc
= intel_get_crtc_for_pipe(dev_priv
, pipe
);
10297 struct intel_flip_work
*work
;
10298 unsigned long flags
;
10300 /* Ignore early vblank irqs */
10305 * This is called both by irq handlers and the reset code (to complete
10306 * lost pageflips) so needs the full irqsave spinlocks.
10308 spin_lock_irqsave(&dev
->event_lock
, flags
);
10309 work
= crtc
->flip_work
;
10311 if (work
!= NULL
&&
10312 is_mmio_work(work
) &&
10313 pageflip_finished(crtc
, work
))
10314 page_flip_completed(crtc
);
10316 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
10319 static inline void intel_mark_page_flip_active(struct intel_crtc
*crtc
,
10320 struct intel_flip_work
*work
)
10322 work
->flip_queued_vblank
= intel_crtc_get_vblank_counter(crtc
);
10324 /* Ensure that the work item is consistent when activating it ... */
10325 smp_mb__before_atomic();
10326 atomic_set(&work
->pending
, 1);
10329 static int intel_gen2_queue_flip(struct drm_device
*dev
,
10330 struct drm_crtc
*crtc
,
10331 struct drm_framebuffer
*fb
,
10332 struct drm_i915_gem_object
*obj
,
10333 struct drm_i915_gem_request
*req
,
10336 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10337 u32 flip_mask
, *cs
;
10339 cs
= intel_ring_begin(req
, 6);
10341 return PTR_ERR(cs
);
10343 /* Can't queue multiple flips, so wait for the previous
10344 * one to finish before executing the next.
10346 if (intel_crtc
->plane
)
10347 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
10349 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
10350 *cs
++ = MI_WAIT_FOR_EVENT
| flip_mask
;
10352 *cs
++ = MI_DISPLAY_FLIP
| MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
);
10353 *cs
++ = fb
->pitches
[0];
10354 *cs
++ = intel_crtc
->flip_work
->gtt_offset
;
10355 *cs
++ = 0; /* aux display base address, unused */
10360 static int intel_gen3_queue_flip(struct drm_device
*dev
,
10361 struct drm_crtc
*crtc
,
10362 struct drm_framebuffer
*fb
,
10363 struct drm_i915_gem_object
*obj
,
10364 struct drm_i915_gem_request
*req
,
10367 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10368 u32 flip_mask
, *cs
;
10370 cs
= intel_ring_begin(req
, 6);
10372 return PTR_ERR(cs
);
10374 if (intel_crtc
->plane
)
10375 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
10377 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
10378 *cs
++ = MI_WAIT_FOR_EVENT
| flip_mask
;
10380 *cs
++ = MI_DISPLAY_FLIP_I915
| MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
);
10381 *cs
++ = fb
->pitches
[0];
10382 *cs
++ = intel_crtc
->flip_work
->gtt_offset
;
10388 static int intel_gen4_queue_flip(struct drm_device
*dev
,
10389 struct drm_crtc
*crtc
,
10390 struct drm_framebuffer
*fb
,
10391 struct drm_i915_gem_object
*obj
,
10392 struct drm_i915_gem_request
*req
,
10395 struct drm_i915_private
*dev_priv
= to_i915(dev
);
10396 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10397 u32 pf
, pipesrc
, *cs
;
10399 cs
= intel_ring_begin(req
, 4);
10401 return PTR_ERR(cs
);
10403 /* i965+ uses the linear or tiled offsets from the
10404 * Display Registers (which do not change across a page-flip)
10405 * so we need only reprogram the base address.
10407 *cs
++ = MI_DISPLAY_FLIP
| MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
);
10408 *cs
++ = fb
->pitches
[0];
10409 *cs
++ = intel_crtc
->flip_work
->gtt_offset
|
10410 intel_fb_modifier_to_tiling(fb
->modifier
);
10412 /* XXX Enabling the panel-fitter across page-flip is so far
10413 * untested on non-native modes, so ignore it for now.
10414 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
10417 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
10418 *cs
++ = pf
| pipesrc
;
10423 static int intel_gen6_queue_flip(struct drm_device
*dev
,
10424 struct drm_crtc
*crtc
,
10425 struct drm_framebuffer
*fb
,
10426 struct drm_i915_gem_object
*obj
,
10427 struct drm_i915_gem_request
*req
,
10430 struct drm_i915_private
*dev_priv
= to_i915(dev
);
10431 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10432 u32 pf
, pipesrc
, *cs
;
10434 cs
= intel_ring_begin(req
, 4);
10436 return PTR_ERR(cs
);
10438 *cs
++ = MI_DISPLAY_FLIP
| MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
);
10439 *cs
++ = fb
->pitches
[0] | intel_fb_modifier_to_tiling(fb
->modifier
);
10440 *cs
++ = intel_crtc
->flip_work
->gtt_offset
;
10442 /* Contrary to the suggestions in the documentation,
10443 * "Enable Panel Fitter" does not seem to be required when page
10444 * flipping with a non-native mode, and worse causes a normal
10446 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
10449 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
10450 *cs
++ = pf
| pipesrc
;
10455 static int intel_gen7_queue_flip(struct drm_device
*dev
,
10456 struct drm_crtc
*crtc
,
10457 struct drm_framebuffer
*fb
,
10458 struct drm_i915_gem_object
*obj
,
10459 struct drm_i915_gem_request
*req
,
10462 struct drm_i915_private
*dev_priv
= to_i915(dev
);
10463 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10464 u32
*cs
, plane_bit
= 0;
10467 switch (intel_crtc
->plane
) {
10469 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_A
;
10472 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_B
;
10475 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_C
;
10478 WARN_ONCE(1, "unknown plane in flip command\n");
10483 if (req
->engine
->id
== RCS
) {
10486 * On Gen 8, SRM is now taking an extra dword to accommodate
10487 * 48bits addresses, and we need a NOOP for the batch size to
10490 if (IS_GEN8(dev_priv
))
10495 * BSpec MI_DISPLAY_FLIP for IVB:
10496 * "The full packet must be contained within the same cache line."
10498 * Currently the LRI+SRM+MI_DISPLAY_FLIP all fit within the same
10499 * cacheline, if we ever start emitting more commands before
10500 * the MI_DISPLAY_FLIP we may need to first emit everything else,
10501 * then do the cacheline alignment, and finally emit the
10504 ret
= intel_ring_cacheline_align(req
);
10508 cs
= intel_ring_begin(req
, len
);
10510 return PTR_ERR(cs
);
10512 /* Unmask the flip-done completion message. Note that the bspec says that
10513 * we should do this for both the BCS and RCS, and that we must not unmask
10514 * more than one flip event at any time (or ensure that one flip message
10515 * can be sent by waiting for flip-done prior to queueing new flips).
10516 * Experimentation says that BCS works despite DERRMR masking all
10517 * flip-done completion events and that unmasking all planes at once
10518 * for the RCS also doesn't appear to drop events. Setting the DERRMR
10519 * to zero does lead to lockups within MI_DISPLAY_FLIP.
10521 if (req
->engine
->id
== RCS
) {
10522 *cs
++ = MI_LOAD_REGISTER_IMM(1);
10523 *cs
++ = i915_mmio_reg_offset(DERRMR
);
10524 *cs
++ = ~(DERRMR_PIPEA_PRI_FLIP_DONE
|
10525 DERRMR_PIPEB_PRI_FLIP_DONE
|
10526 DERRMR_PIPEC_PRI_FLIP_DONE
);
10527 if (IS_GEN8(dev_priv
))
10528 *cs
++ = MI_STORE_REGISTER_MEM_GEN8
|
10529 MI_SRM_LRM_GLOBAL_GTT
;
10531 *cs
++ = MI_STORE_REGISTER_MEM
| MI_SRM_LRM_GLOBAL_GTT
;
10532 *cs
++ = i915_mmio_reg_offset(DERRMR
);
10533 *cs
++ = i915_ggtt_offset(req
->engine
->scratch
) + 256;
10534 if (IS_GEN8(dev_priv
)) {
10540 *cs
++ = MI_DISPLAY_FLIP_I915
| plane_bit
;
10541 *cs
++ = fb
->pitches
[0] | intel_fb_modifier_to_tiling(fb
->modifier
);
10542 *cs
++ = intel_crtc
->flip_work
->gtt_offset
;
10548 static bool use_mmio_flip(struct intel_engine_cs
*engine
,
10549 struct drm_i915_gem_object
*obj
)
10552 * This is not being used for older platforms, because
10553 * non-availability of flip done interrupt forces us to use
10554 * CS flips. Older platforms derive flip done using some clever
10555 * tricks involving the flip_pending status bits and vblank irqs.
10556 * So using MMIO flips there would disrupt this mechanism.
10559 if (engine
== NULL
)
10562 if (INTEL_GEN(engine
->i915
) < 5)
10565 if (i915
.use_mmio_flip
< 0)
10567 else if (i915
.use_mmio_flip
> 0)
10569 else if (i915
.enable_execlists
)
10572 return engine
!= i915_gem_object_last_write_engine(obj
);
10575 static void skl_do_mmio_flip(struct intel_crtc
*intel_crtc
,
10576 unsigned int rotation
,
10577 struct intel_flip_work
*work
)
10579 struct drm_device
*dev
= intel_crtc
->base
.dev
;
10580 struct drm_i915_private
*dev_priv
= to_i915(dev
);
10581 struct drm_framebuffer
*fb
= intel_crtc
->base
.primary
->fb
;
10582 const enum pipe pipe
= intel_crtc
->pipe
;
10583 u32 ctl
, stride
= skl_plane_stride(fb
, 0, rotation
);
10585 ctl
= I915_READ(PLANE_CTL(pipe
, 0));
10586 ctl
&= ~PLANE_CTL_TILED_MASK
;
10587 switch (fb
->modifier
) {
10588 case DRM_FORMAT_MOD_LINEAR
:
10590 case I915_FORMAT_MOD_X_TILED
:
10591 ctl
|= PLANE_CTL_TILED_X
;
10593 case I915_FORMAT_MOD_Y_TILED
:
10594 ctl
|= PLANE_CTL_TILED_Y
;
10596 case I915_FORMAT_MOD_Yf_TILED
:
10597 ctl
|= PLANE_CTL_TILED_YF
;
10600 MISSING_CASE(fb
->modifier
);
10604 * Both PLANE_CTL and PLANE_STRIDE are not updated on vblank but on
10605 * PLANE_SURF updates, the update is then guaranteed to be atomic.
10607 I915_WRITE(PLANE_CTL(pipe
, 0), ctl
);
10608 I915_WRITE(PLANE_STRIDE(pipe
, 0), stride
);
10610 I915_WRITE(PLANE_SURF(pipe
, 0), work
->gtt_offset
);
10611 POSTING_READ(PLANE_SURF(pipe
, 0));
10614 static void ilk_do_mmio_flip(struct intel_crtc
*intel_crtc
,
10615 struct intel_flip_work
*work
)
10617 struct drm_device
*dev
= intel_crtc
->base
.dev
;
10618 struct drm_i915_private
*dev_priv
= to_i915(dev
);
10619 struct drm_framebuffer
*fb
= intel_crtc
->base
.primary
->fb
;
10620 i915_reg_t reg
= DSPCNTR(intel_crtc
->plane
);
10623 dspcntr
= I915_READ(reg
);
10625 if (fb
->modifier
== I915_FORMAT_MOD_X_TILED
)
10626 dspcntr
|= DISPPLANE_TILED
;
10628 dspcntr
&= ~DISPPLANE_TILED
;
10630 I915_WRITE(reg
, dspcntr
);
10632 I915_WRITE(DSPSURF(intel_crtc
->plane
), work
->gtt_offset
);
10633 POSTING_READ(DSPSURF(intel_crtc
->plane
));
10636 static void intel_mmio_flip_work_func(struct work_struct
*w
)
10638 struct intel_flip_work
*work
=
10639 container_of(w
, struct intel_flip_work
, mmio_work
);
10640 struct intel_crtc
*crtc
= to_intel_crtc(work
->crtc
);
10641 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
10642 struct intel_framebuffer
*intel_fb
=
10643 to_intel_framebuffer(crtc
->base
.primary
->fb
);
10644 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
10646 WARN_ON(i915_gem_object_wait(obj
, 0, MAX_SCHEDULE_TIMEOUT
, NULL
) < 0);
10648 intel_pipe_update_start(crtc
);
10650 if (INTEL_GEN(dev_priv
) >= 9)
10651 skl_do_mmio_flip(crtc
, work
->rotation
, work
);
10653 /* use_mmio_flip() retricts MMIO flips to ilk+ */
10654 ilk_do_mmio_flip(crtc
, work
);
10656 intel_pipe_update_end(crtc
, work
);
10659 static int intel_default_queue_flip(struct drm_device
*dev
,
10660 struct drm_crtc
*crtc
,
10661 struct drm_framebuffer
*fb
,
10662 struct drm_i915_gem_object
*obj
,
10663 struct drm_i915_gem_request
*req
,
10669 static bool __pageflip_stall_check_cs(struct drm_i915_private
*dev_priv
,
10670 struct intel_crtc
*intel_crtc
,
10671 struct intel_flip_work
*work
)
10675 if (!atomic_read(&work
->pending
))
10680 vblank
= intel_crtc_get_vblank_counter(intel_crtc
);
10681 if (work
->flip_ready_vblank
== 0) {
10682 if (work
->flip_queued_req
&&
10683 !i915_gem_request_completed(work
->flip_queued_req
))
10686 work
->flip_ready_vblank
= vblank
;
10689 if (vblank
- work
->flip_ready_vblank
< 3)
10692 /* Potential stall - if we see that the flip has happened,
10693 * assume a missed interrupt. */
10694 if (INTEL_GEN(dev_priv
) >= 4)
10695 addr
= I915_HI_DISPBASE(I915_READ(DSPSURF(intel_crtc
->plane
)));
10697 addr
= I915_READ(DSPADDR(intel_crtc
->plane
));
10699 /* There is a potential issue here with a false positive after a flip
10700 * to the same address. We could address this by checking for a
10701 * non-incrementing frame counter.
10703 return addr
== work
->gtt_offset
;
10706 void intel_check_page_flip(struct drm_i915_private
*dev_priv
, int pipe
)
10708 struct drm_device
*dev
= &dev_priv
->drm
;
10709 struct intel_crtc
*crtc
= intel_get_crtc_for_pipe(dev_priv
, pipe
);
10710 struct intel_flip_work
*work
;
10712 WARN_ON(!in_interrupt());
10717 spin_lock(&dev
->event_lock
);
10718 work
= crtc
->flip_work
;
10720 if (work
!= NULL
&& !is_mmio_work(work
) &&
10721 __pageflip_stall_check_cs(dev_priv
, crtc
, work
)) {
10723 "Kicking stuck page flip: queued at %d, now %d\n",
10724 work
->flip_queued_vblank
, intel_crtc_get_vblank_counter(crtc
));
10725 page_flip_completed(crtc
);
10729 if (work
!= NULL
&& !is_mmio_work(work
) &&
10730 intel_crtc_get_vblank_counter(crtc
) - work
->flip_queued_vblank
> 1)
10731 intel_queue_rps_boost_for_request(work
->flip_queued_req
);
10732 spin_unlock(&dev
->event_lock
);
10736 static int intel_crtc_page_flip(struct drm_crtc
*crtc
,
10737 struct drm_framebuffer
*fb
,
10738 struct drm_pending_vblank_event
*event
,
10739 uint32_t page_flip_flags
)
10741 struct drm_device
*dev
= crtc
->dev
;
10742 struct drm_i915_private
*dev_priv
= to_i915(dev
);
10743 struct drm_framebuffer
*old_fb
= crtc
->primary
->fb
;
10744 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
10745 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10746 struct drm_plane
*primary
= crtc
->primary
;
10747 enum pipe pipe
= intel_crtc
->pipe
;
10748 struct intel_flip_work
*work
;
10749 struct intel_engine_cs
*engine
;
10751 struct drm_i915_gem_request
*request
;
10752 struct i915_vma
*vma
;
10756 * drm_mode_page_flip_ioctl() should already catch this, but double
10757 * check to be safe. In the future we may enable pageflipping from
10758 * a disabled primary plane.
10760 if (WARN_ON(intel_fb_obj(old_fb
) == NULL
))
10763 /* Can't change pixel format via MI display flips. */
10764 if (fb
->format
!= crtc
->primary
->fb
->format
)
10768 * TILEOFF/LINOFF registers can't be changed via MI display flips.
10769 * Note that pitch changes could also affect these register.
10771 if (INTEL_GEN(dev_priv
) > 3 &&
10772 (fb
->offsets
[0] != crtc
->primary
->fb
->offsets
[0] ||
10773 fb
->pitches
[0] != crtc
->primary
->fb
->pitches
[0]))
10776 if (i915_terminally_wedged(&dev_priv
->gpu_error
))
10779 work
= kzalloc(sizeof(*work
), GFP_KERNEL
);
10783 work
->event
= event
;
10785 work
->old_fb
= old_fb
;
10786 INIT_WORK(&work
->unpin_work
, intel_unpin_work_fn
);
10788 ret
= drm_crtc_vblank_get(crtc
);
10792 /* We borrow the event spin lock for protecting flip_work */
10793 spin_lock_irq(&dev
->event_lock
);
10794 if (intel_crtc
->flip_work
) {
10795 /* Before declaring the flip queue wedged, check if
10796 * the hardware completed the operation behind our backs.
10798 if (pageflip_finished(intel_crtc
, intel_crtc
->flip_work
)) {
10799 DRM_DEBUG_DRIVER("flip queue: previous flip completed, continuing\n");
10800 page_flip_completed(intel_crtc
);
10802 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
10803 spin_unlock_irq(&dev
->event_lock
);
10805 drm_crtc_vblank_put(crtc
);
10810 intel_crtc
->flip_work
= work
;
10811 spin_unlock_irq(&dev
->event_lock
);
10813 if (atomic_read(&intel_crtc
->unpin_work_count
) >= 2)
10814 flush_workqueue(dev_priv
->wq
);
10816 /* Reference the objects for the scheduled work. */
10817 drm_framebuffer_reference(work
->old_fb
);
10819 crtc
->primary
->fb
= fb
;
10820 update_state_fb(crtc
->primary
);
10822 work
->pending_flip_obj
= i915_gem_object_get(obj
);
10824 ret
= i915_mutex_lock_interruptible(dev
);
10828 intel_crtc
->reset_count
= i915_reset_count(&dev_priv
->gpu_error
);
10829 if (i915_reset_backoff_or_wedged(&dev_priv
->gpu_error
)) {
10834 atomic_inc(&intel_crtc
->unpin_work_count
);
10836 if (INTEL_GEN(dev_priv
) >= 5 || IS_G4X(dev_priv
))
10837 work
->flip_count
= I915_READ(PIPE_FLIPCOUNT_G4X(pipe
)) + 1;
10839 if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) {
10840 engine
= dev_priv
->engine
[BCS
];
10841 if (fb
->modifier
!= old_fb
->modifier
)
10842 /* vlv: DISPLAY_FLIP fails to change tiling */
10844 } else if (IS_IVYBRIDGE(dev_priv
) || IS_HASWELL(dev_priv
)) {
10845 engine
= dev_priv
->engine
[BCS
];
10846 } else if (INTEL_GEN(dev_priv
) >= 7) {
10847 engine
= i915_gem_object_last_write_engine(obj
);
10848 if (engine
== NULL
|| engine
->id
!= RCS
)
10849 engine
= dev_priv
->engine
[BCS
];
10851 engine
= dev_priv
->engine
[RCS
];
10854 mmio_flip
= use_mmio_flip(engine
, obj
);
10856 vma
= intel_pin_and_fence_fb_obj(fb
, primary
->state
->rotation
);
10858 ret
= PTR_ERR(vma
);
10859 goto cleanup_pending
;
10862 work
->old_vma
= to_intel_plane_state(primary
->state
)->vma
;
10863 to_intel_plane_state(primary
->state
)->vma
= vma
;
10865 work
->gtt_offset
= i915_ggtt_offset(vma
) + intel_crtc
->dspaddr_offset
;
10866 work
->rotation
= crtc
->primary
->state
->rotation
;
10869 * There's the potential that the next frame will not be compatible with
10870 * FBC, so we want to call pre_update() before the actual page flip.
10871 * The problem is that pre_update() caches some information about the fb
10872 * object, so we want to do this only after the object is pinned. Let's
10873 * be on the safe side and do this immediately before scheduling the
10876 intel_fbc_pre_update(intel_crtc
, intel_crtc
->config
,
10877 to_intel_plane_state(primary
->state
));
10880 INIT_WORK(&work
->mmio_work
, intel_mmio_flip_work_func
);
10881 queue_work(system_unbound_wq
, &work
->mmio_work
);
10883 request
= i915_gem_request_alloc(engine
,
10884 dev_priv
->kernel_context
);
10885 if (IS_ERR(request
)) {
10886 ret
= PTR_ERR(request
);
10887 goto cleanup_unpin
;
10890 ret
= i915_gem_request_await_object(request
, obj
, false);
10892 goto cleanup_request
;
10894 ret
= dev_priv
->display
.queue_flip(dev
, crtc
, fb
, obj
, request
,
10897 goto cleanup_request
;
10899 intel_mark_page_flip_active(intel_crtc
, work
);
10901 work
->flip_queued_req
= i915_gem_request_get(request
);
10902 i915_add_request(request
);
10905 i915_gem_object_wait_priority(obj
, 0, I915_PRIORITY_DISPLAY
);
10906 i915_gem_track_fb(intel_fb_obj(old_fb
), obj
,
10907 to_intel_plane(primary
)->frontbuffer_bit
);
10908 mutex_unlock(&dev
->struct_mutex
);
10910 intel_frontbuffer_flip_prepare(to_i915(dev
),
10911 to_intel_plane(primary
)->frontbuffer_bit
);
10913 trace_i915_flip_request(intel_crtc
->plane
, obj
);
10918 i915_add_request(request
);
10920 to_intel_plane_state(primary
->state
)->vma
= work
->old_vma
;
10921 intel_unpin_fb_vma(vma
);
10923 atomic_dec(&intel_crtc
->unpin_work_count
);
10925 mutex_unlock(&dev
->struct_mutex
);
10927 crtc
->primary
->fb
= old_fb
;
10928 update_state_fb(crtc
->primary
);
10930 i915_gem_object_put(obj
);
10931 drm_framebuffer_unreference(work
->old_fb
);
10933 spin_lock_irq(&dev
->event_lock
);
10934 intel_crtc
->flip_work
= NULL
;
10935 spin_unlock_irq(&dev
->event_lock
);
10937 drm_crtc_vblank_put(crtc
);
10942 struct drm_atomic_state
*state
;
10943 struct drm_plane_state
*plane_state
;
10946 state
= drm_atomic_state_alloc(dev
);
10949 state
->acquire_ctx
= dev
->mode_config
.acquire_ctx
;
10952 plane_state
= drm_atomic_get_plane_state(state
, primary
);
10953 ret
= PTR_ERR_OR_ZERO(plane_state
);
10955 drm_atomic_set_fb_for_plane(plane_state
, fb
);
10957 ret
= drm_atomic_set_crtc_for_plane(plane_state
, crtc
);
10959 ret
= drm_atomic_commit(state
);
10962 if (ret
== -EDEADLK
) {
10963 drm_modeset_backoff(state
->acquire_ctx
);
10964 drm_atomic_state_clear(state
);
10968 drm_atomic_state_put(state
);
10970 if (ret
== 0 && event
) {
10971 spin_lock_irq(&dev
->event_lock
);
10972 drm_crtc_send_vblank_event(crtc
, event
);
10973 spin_unlock_irq(&dev
->event_lock
);
10981 * intel_wm_need_update - Check whether watermarks need updating
10982 * @plane: drm plane
10983 * @state: new plane state
10985 * Check current plane state versus the new one to determine whether
10986 * watermarks need to be recalculated.
10988 * Returns true or false.
10990 static bool intel_wm_need_update(struct drm_plane
*plane
,
10991 struct drm_plane_state
*state
)
10993 struct intel_plane_state
*new = to_intel_plane_state(state
);
10994 struct intel_plane_state
*cur
= to_intel_plane_state(plane
->state
);
10996 /* Update watermarks on tiling or size changes. */
10997 if (new->base
.visible
!= cur
->base
.visible
)
11000 if (!cur
->base
.fb
|| !new->base
.fb
)
11003 if (cur
->base
.fb
->modifier
!= new->base
.fb
->modifier
||
11004 cur
->base
.rotation
!= new->base
.rotation
||
11005 drm_rect_width(&new->base
.src
) != drm_rect_width(&cur
->base
.src
) ||
11006 drm_rect_height(&new->base
.src
) != drm_rect_height(&cur
->base
.src
) ||
11007 drm_rect_width(&new->base
.dst
) != drm_rect_width(&cur
->base
.dst
) ||
11008 drm_rect_height(&new->base
.dst
) != drm_rect_height(&cur
->base
.dst
))
11014 static bool needs_scaling(struct intel_plane_state
*state
)
11016 int src_w
= drm_rect_width(&state
->base
.src
) >> 16;
11017 int src_h
= drm_rect_height(&state
->base
.src
) >> 16;
11018 int dst_w
= drm_rect_width(&state
->base
.dst
);
11019 int dst_h
= drm_rect_height(&state
->base
.dst
);
11021 return (src_w
!= dst_w
|| src_h
!= dst_h
);
11024 int intel_plane_atomic_calc_changes(struct drm_crtc_state
*crtc_state
,
11025 struct drm_plane_state
*plane_state
)
11027 struct intel_crtc_state
*pipe_config
= to_intel_crtc_state(crtc_state
);
11028 struct drm_crtc
*crtc
= crtc_state
->crtc
;
11029 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11030 struct intel_plane
*plane
= to_intel_plane(plane_state
->plane
);
11031 struct drm_device
*dev
= crtc
->dev
;
11032 struct drm_i915_private
*dev_priv
= to_i915(dev
);
11033 struct intel_plane_state
*old_plane_state
=
11034 to_intel_plane_state(plane
->base
.state
);
11035 bool mode_changed
= needs_modeset(crtc_state
);
11036 bool was_crtc_enabled
= crtc
->state
->active
;
11037 bool is_crtc_enabled
= crtc_state
->active
;
11038 bool turn_off
, turn_on
, visible
, was_visible
;
11039 struct drm_framebuffer
*fb
= plane_state
->fb
;
11042 if (INTEL_GEN(dev_priv
) >= 9 && plane
->id
!= PLANE_CURSOR
) {
11043 ret
= skl_update_scaler_plane(
11044 to_intel_crtc_state(crtc_state
),
11045 to_intel_plane_state(plane_state
));
11050 was_visible
= old_plane_state
->base
.visible
;
11051 visible
= plane_state
->visible
;
11053 if (!was_crtc_enabled
&& WARN_ON(was_visible
))
11054 was_visible
= false;
11057 * Visibility is calculated as if the crtc was on, but
11058 * after scaler setup everything depends on it being off
11059 * when the crtc isn't active.
11061 * FIXME this is wrong for watermarks. Watermarks should also
11062 * be computed as if the pipe would be active. Perhaps move
11063 * per-plane wm computation to the .check_plane() hook, and
11064 * only combine the results from all planes in the current place?
11066 if (!is_crtc_enabled
) {
11067 plane_state
->visible
= visible
= false;
11068 to_intel_crtc_state(crtc_state
)->active_planes
&= ~BIT(plane
->id
);
11071 if (!was_visible
&& !visible
)
11074 if (fb
!= old_plane_state
->base
.fb
)
11075 pipe_config
->fb_changed
= true;
11077 turn_off
= was_visible
&& (!visible
|| mode_changed
);
11078 turn_on
= visible
&& (!was_visible
|| mode_changed
);
11080 DRM_DEBUG_ATOMIC("[CRTC:%d:%s] has [PLANE:%d:%s] with fb %i\n",
11081 intel_crtc
->base
.base
.id
, intel_crtc
->base
.name
,
11082 plane
->base
.base
.id
, plane
->base
.name
,
11083 fb
? fb
->base
.id
: -1);
11085 DRM_DEBUG_ATOMIC("[PLANE:%d:%s] visible %i -> %i, off %i, on %i, ms %i\n",
11086 plane
->base
.base
.id
, plane
->base
.name
,
11087 was_visible
, visible
,
11088 turn_off
, turn_on
, mode_changed
);
11091 if (INTEL_GEN(dev_priv
) < 5 && !IS_G4X(dev_priv
))
11092 pipe_config
->update_wm_pre
= true;
11094 /* must disable cxsr around plane enable/disable */
11095 if (plane
->id
!= PLANE_CURSOR
)
11096 pipe_config
->disable_cxsr
= true;
11097 } else if (turn_off
) {
11098 if (INTEL_GEN(dev_priv
) < 5 && !IS_G4X(dev_priv
))
11099 pipe_config
->update_wm_post
= true;
11101 /* must disable cxsr around plane enable/disable */
11102 if (plane
->id
!= PLANE_CURSOR
)
11103 pipe_config
->disable_cxsr
= true;
11104 } else if (intel_wm_need_update(&plane
->base
, plane_state
)) {
11105 if (INTEL_GEN(dev_priv
) < 5 && !IS_G4X(dev_priv
)) {
11106 /* FIXME bollocks */
11107 pipe_config
->update_wm_pre
= true;
11108 pipe_config
->update_wm_post
= true;
11112 if (visible
|| was_visible
)
11113 pipe_config
->fb_bits
|= plane
->frontbuffer_bit
;
11116 * WaCxSRDisabledForSpriteScaling:ivb
11118 * cstate->update_wm was already set above, so this flag will
11119 * take effect when we commit and program watermarks.
11121 if (plane
->id
== PLANE_SPRITE0
&& IS_IVYBRIDGE(dev_priv
) &&
11122 needs_scaling(to_intel_plane_state(plane_state
)) &&
11123 !needs_scaling(old_plane_state
))
11124 pipe_config
->disable_lp_wm
= true;
11129 static bool encoders_cloneable(const struct intel_encoder
*a
,
11130 const struct intel_encoder
*b
)
11132 /* masks could be asymmetric, so check both ways */
11133 return a
== b
|| (a
->cloneable
& (1 << b
->type
) &&
11134 b
->cloneable
& (1 << a
->type
));
11137 static bool check_single_encoder_cloning(struct drm_atomic_state
*state
,
11138 struct intel_crtc
*crtc
,
11139 struct intel_encoder
*encoder
)
11141 struct intel_encoder
*source_encoder
;
11142 struct drm_connector
*connector
;
11143 struct drm_connector_state
*connector_state
;
11146 for_each_new_connector_in_state(state
, connector
, connector_state
, i
) {
11147 if (connector_state
->crtc
!= &crtc
->base
)
11151 to_intel_encoder(connector_state
->best_encoder
);
11152 if (!encoders_cloneable(encoder
, source_encoder
))
11159 static int intel_crtc_atomic_check(struct drm_crtc
*crtc
,
11160 struct drm_crtc_state
*crtc_state
)
11162 struct drm_device
*dev
= crtc
->dev
;
11163 struct drm_i915_private
*dev_priv
= to_i915(dev
);
11164 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11165 struct intel_crtc_state
*pipe_config
=
11166 to_intel_crtc_state(crtc_state
);
11167 struct drm_atomic_state
*state
= crtc_state
->state
;
11169 bool mode_changed
= needs_modeset(crtc_state
);
11171 if (mode_changed
&& !crtc_state
->active
)
11172 pipe_config
->update_wm_post
= true;
11174 if (mode_changed
&& crtc_state
->enable
&&
11175 dev_priv
->display
.crtc_compute_clock
&&
11176 !WARN_ON(pipe_config
->shared_dpll
)) {
11177 ret
= dev_priv
->display
.crtc_compute_clock(intel_crtc
,
11183 if (crtc_state
->color_mgmt_changed
) {
11184 ret
= intel_color_check(crtc
, crtc_state
);
11189 * Changing color management on Intel hardware is
11190 * handled as part of planes update.
11192 crtc_state
->planes_changed
= true;
11196 if (dev_priv
->display
.compute_pipe_wm
) {
11197 ret
= dev_priv
->display
.compute_pipe_wm(pipe_config
);
11199 DRM_DEBUG_KMS("Target pipe watermarks are invalid\n");
11204 if (dev_priv
->display
.compute_intermediate_wm
&&
11205 !to_intel_atomic_state(state
)->skip_intermediate_wm
) {
11206 if (WARN_ON(!dev_priv
->display
.compute_pipe_wm
))
11210 * Calculate 'intermediate' watermarks that satisfy both the
11211 * old state and the new state. We can program these
11214 ret
= dev_priv
->display
.compute_intermediate_wm(dev
,
11218 DRM_DEBUG_KMS("No valid intermediate pipe watermarks are possible\n");
11221 } else if (dev_priv
->display
.compute_intermediate_wm
) {
11222 if (HAS_PCH_SPLIT(dev_priv
) && INTEL_GEN(dev_priv
) < 9)
11223 pipe_config
->wm
.ilk
.intermediate
= pipe_config
->wm
.ilk
.optimal
;
11226 if (INTEL_GEN(dev_priv
) >= 9) {
11228 ret
= skl_update_scaler_crtc(pipe_config
);
11231 ret
= skl_check_pipe_max_pixel_rate(intel_crtc
,
11234 ret
= intel_atomic_setup_scalers(dev_priv
, intel_crtc
,
11241 static const struct drm_crtc_helper_funcs intel_helper_funcs
= {
11242 .atomic_begin
= intel_begin_crtc_commit
,
11243 .atomic_flush
= intel_finish_crtc_commit
,
11244 .atomic_check
= intel_crtc_atomic_check
,
11247 static void intel_modeset_update_connector_atomic_state(struct drm_device
*dev
)
11249 struct intel_connector
*connector
;
11250 struct drm_connector_list_iter conn_iter
;
11252 drm_connector_list_iter_begin(dev
, &conn_iter
);
11253 for_each_intel_connector_iter(connector
, &conn_iter
) {
11254 if (connector
->base
.state
->crtc
)
11255 drm_connector_unreference(&connector
->base
);
11257 if (connector
->base
.encoder
) {
11258 connector
->base
.state
->best_encoder
=
11259 connector
->base
.encoder
;
11260 connector
->base
.state
->crtc
=
11261 connector
->base
.encoder
->crtc
;
11263 drm_connector_reference(&connector
->base
);
11265 connector
->base
.state
->best_encoder
= NULL
;
11266 connector
->base
.state
->crtc
= NULL
;
11269 drm_connector_list_iter_end(&conn_iter
);
11273 connected_sink_compute_bpp(struct intel_connector
*connector
,
11274 struct intel_crtc_state
*pipe_config
)
11276 const struct drm_display_info
*info
= &connector
->base
.display_info
;
11277 int bpp
= pipe_config
->pipe_bpp
;
11279 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n",
11280 connector
->base
.base
.id
,
11281 connector
->base
.name
);
11283 /* Don't use an invalid EDID bpc value */
11284 if (info
->bpc
!= 0 && info
->bpc
* 3 < bpp
) {
11285 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
11286 bpp
, info
->bpc
* 3);
11287 pipe_config
->pipe_bpp
= info
->bpc
* 3;
11290 /* Clamp bpp to 8 on screens without EDID 1.4 */
11291 if (info
->bpc
== 0 && bpp
> 24) {
11292 DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
11294 pipe_config
->pipe_bpp
= 24;
11299 compute_baseline_pipe_bpp(struct intel_crtc
*crtc
,
11300 struct intel_crtc_state
*pipe_config
)
11302 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
11303 struct drm_atomic_state
*state
;
11304 struct drm_connector
*connector
;
11305 struct drm_connector_state
*connector_state
;
11308 if ((IS_G4X(dev_priv
) || IS_VALLEYVIEW(dev_priv
) ||
11309 IS_CHERRYVIEW(dev_priv
)))
11311 else if (INTEL_GEN(dev_priv
) >= 5)
11317 pipe_config
->pipe_bpp
= bpp
;
11319 state
= pipe_config
->base
.state
;
11321 /* Clamp display bpp to EDID value */
11322 for_each_new_connector_in_state(state
, connector
, connector_state
, i
) {
11323 if (connector_state
->crtc
!= &crtc
->base
)
11326 connected_sink_compute_bpp(to_intel_connector(connector
),
11333 static void intel_dump_crtc_timings(const struct drm_display_mode
*mode
)
11335 DRM_DEBUG_KMS("crtc timings: %d %d %d %d %d %d %d %d %d, "
11336 "type: 0x%x flags: 0x%x\n",
11338 mode
->crtc_hdisplay
, mode
->crtc_hsync_start
,
11339 mode
->crtc_hsync_end
, mode
->crtc_htotal
,
11340 mode
->crtc_vdisplay
, mode
->crtc_vsync_start
,
11341 mode
->crtc_vsync_end
, mode
->crtc_vtotal
, mode
->type
, mode
->flags
);
11345 intel_dump_m_n_config(struct intel_crtc_state
*pipe_config
, char *id
,
11346 unsigned int lane_count
, struct intel_link_m_n
*m_n
)
11348 DRM_DEBUG_KMS("%s: lanes: %i; gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
11350 m_n
->gmch_m
, m_n
->gmch_n
,
11351 m_n
->link_m
, m_n
->link_n
, m_n
->tu
);
11354 static void intel_dump_pipe_config(struct intel_crtc
*crtc
,
11355 struct intel_crtc_state
*pipe_config
,
11356 const char *context
)
11358 struct drm_device
*dev
= crtc
->base
.dev
;
11359 struct drm_i915_private
*dev_priv
= to_i915(dev
);
11360 struct drm_plane
*plane
;
11361 struct intel_plane
*intel_plane
;
11362 struct intel_plane_state
*state
;
11363 struct drm_framebuffer
*fb
;
11365 DRM_DEBUG_KMS("[CRTC:%d:%s]%s\n",
11366 crtc
->base
.base
.id
, crtc
->base
.name
, context
);
11368 DRM_DEBUG_KMS("cpu_transcoder: %s, pipe bpp: %i, dithering: %i\n",
11369 transcoder_name(pipe_config
->cpu_transcoder
),
11370 pipe_config
->pipe_bpp
, pipe_config
->dither
);
11372 if (pipe_config
->has_pch_encoder
)
11373 intel_dump_m_n_config(pipe_config
, "fdi",
11374 pipe_config
->fdi_lanes
,
11375 &pipe_config
->fdi_m_n
);
11377 if (intel_crtc_has_dp_encoder(pipe_config
)) {
11378 intel_dump_m_n_config(pipe_config
, "dp m_n",
11379 pipe_config
->lane_count
, &pipe_config
->dp_m_n
);
11380 if (pipe_config
->has_drrs
)
11381 intel_dump_m_n_config(pipe_config
, "dp m2_n2",
11382 pipe_config
->lane_count
,
11383 &pipe_config
->dp_m2_n2
);
11386 DRM_DEBUG_KMS("audio: %i, infoframes: %i\n",
11387 pipe_config
->has_audio
, pipe_config
->has_infoframe
);
11389 DRM_DEBUG_KMS("requested mode:\n");
11390 drm_mode_debug_printmodeline(&pipe_config
->base
.mode
);
11391 DRM_DEBUG_KMS("adjusted mode:\n");
11392 drm_mode_debug_printmodeline(&pipe_config
->base
.adjusted_mode
);
11393 intel_dump_crtc_timings(&pipe_config
->base
.adjusted_mode
);
11394 DRM_DEBUG_KMS("port clock: %d, pipe src size: %dx%d, pixel rate %d\n",
11395 pipe_config
->port_clock
,
11396 pipe_config
->pipe_src_w
, pipe_config
->pipe_src_h
,
11397 pipe_config
->pixel_rate
);
11399 if (INTEL_GEN(dev_priv
) >= 9)
11400 DRM_DEBUG_KMS("num_scalers: %d, scaler_users: 0x%x, scaler_id: %d\n",
11402 pipe_config
->scaler_state
.scaler_users
,
11403 pipe_config
->scaler_state
.scaler_id
);
11405 if (HAS_GMCH_DISPLAY(dev_priv
))
11406 DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n",
11407 pipe_config
->gmch_pfit
.control
,
11408 pipe_config
->gmch_pfit
.pgm_ratios
,
11409 pipe_config
->gmch_pfit
.lvds_border_bits
);
11411 DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n",
11412 pipe_config
->pch_pfit
.pos
,
11413 pipe_config
->pch_pfit
.size
,
11414 enableddisabled(pipe_config
->pch_pfit
.enabled
));
11416 DRM_DEBUG_KMS("ips: %i, double wide: %i\n",
11417 pipe_config
->ips_enabled
, pipe_config
->double_wide
);
11419 intel_dpll_dump_hw_state(dev_priv
, &pipe_config
->dpll_hw_state
);
11421 DRM_DEBUG_KMS("planes on this crtc\n");
11422 list_for_each_entry(plane
, &dev
->mode_config
.plane_list
, head
) {
11423 struct drm_format_name_buf format_name
;
11424 intel_plane
= to_intel_plane(plane
);
11425 if (intel_plane
->pipe
!= crtc
->pipe
)
11428 state
= to_intel_plane_state(plane
->state
);
11429 fb
= state
->base
.fb
;
11431 DRM_DEBUG_KMS("[PLANE:%d:%s] disabled, scaler_id = %d\n",
11432 plane
->base
.id
, plane
->name
, state
->scaler_id
);
11436 DRM_DEBUG_KMS("[PLANE:%d:%s] FB:%d, fb = %ux%u format = %s\n",
11437 plane
->base
.id
, plane
->name
,
11438 fb
->base
.id
, fb
->width
, fb
->height
,
11439 drm_get_format_name(fb
->format
->format
, &format_name
));
11440 if (INTEL_GEN(dev_priv
) >= 9)
11441 DRM_DEBUG_KMS("\tscaler:%d src %dx%d+%d+%d dst %dx%d+%d+%d\n",
11443 state
->base
.src
.x1
>> 16,
11444 state
->base
.src
.y1
>> 16,
11445 drm_rect_width(&state
->base
.src
) >> 16,
11446 drm_rect_height(&state
->base
.src
) >> 16,
11447 state
->base
.dst
.x1
, state
->base
.dst
.y1
,
11448 drm_rect_width(&state
->base
.dst
),
11449 drm_rect_height(&state
->base
.dst
));
11453 static bool check_digital_port_conflicts(struct drm_atomic_state
*state
)
11455 struct drm_device
*dev
= state
->dev
;
11456 struct drm_connector
*connector
;
11457 struct drm_connector_list_iter conn_iter
;
11458 unsigned int used_ports
= 0;
11459 unsigned int used_mst_ports
= 0;
11462 * Walk the connector list instead of the encoder
11463 * list to detect the problem on ddi platforms
11464 * where there's just one encoder per digital port.
11466 drm_connector_list_iter_begin(dev
, &conn_iter
);
11467 drm_for_each_connector_iter(connector
, &conn_iter
) {
11468 struct drm_connector_state
*connector_state
;
11469 struct intel_encoder
*encoder
;
11471 connector_state
= drm_atomic_get_existing_connector_state(state
, connector
);
11472 if (!connector_state
)
11473 connector_state
= connector
->state
;
11475 if (!connector_state
->best_encoder
)
11478 encoder
= to_intel_encoder(connector_state
->best_encoder
);
11480 WARN_ON(!connector_state
->crtc
);
11482 switch (encoder
->type
) {
11483 unsigned int port_mask
;
11484 case INTEL_OUTPUT_UNKNOWN
:
11485 if (WARN_ON(!HAS_DDI(to_i915(dev
))))
11487 case INTEL_OUTPUT_DP
:
11488 case INTEL_OUTPUT_HDMI
:
11489 case INTEL_OUTPUT_EDP
:
11490 port_mask
= 1 << enc_to_dig_port(&encoder
->base
)->port
;
11492 /* the same port mustn't appear more than once */
11493 if (used_ports
& port_mask
)
11496 used_ports
|= port_mask
;
11498 case INTEL_OUTPUT_DP_MST
:
11500 1 << enc_to_mst(&encoder
->base
)->primary
->port
;
11506 drm_connector_list_iter_end(&conn_iter
);
11508 /* can't mix MST and SST/HDMI on the same port */
11509 if (used_ports
& used_mst_ports
)
11516 clear_intel_crtc_state(struct intel_crtc_state
*crtc_state
)
11518 struct drm_i915_private
*dev_priv
=
11519 to_i915(crtc_state
->base
.crtc
->dev
);
11520 struct intel_crtc_scaler_state scaler_state
;
11521 struct intel_dpll_hw_state dpll_hw_state
;
11522 struct intel_shared_dpll
*shared_dpll
;
11523 struct intel_crtc_wm_state wm_state
;
11526 /* FIXME: before the switch to atomic started, a new pipe_config was
11527 * kzalloc'd. Code that depends on any field being zero should be
11528 * fixed, so that the crtc_state can be safely duplicated. For now,
11529 * only fields that are know to not cause problems are preserved. */
11531 scaler_state
= crtc_state
->scaler_state
;
11532 shared_dpll
= crtc_state
->shared_dpll
;
11533 dpll_hw_state
= crtc_state
->dpll_hw_state
;
11534 force_thru
= crtc_state
->pch_pfit
.force_thru
;
11535 if (IS_G4X(dev_priv
) ||
11536 IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
11537 wm_state
= crtc_state
->wm
;
11539 /* Keep base drm_crtc_state intact, only clear our extended struct */
11540 BUILD_BUG_ON(offsetof(struct intel_crtc_state
, base
));
11541 memset(&crtc_state
->base
+ 1, 0,
11542 sizeof(*crtc_state
) - sizeof(crtc_state
->base
));
11544 crtc_state
->scaler_state
= scaler_state
;
11545 crtc_state
->shared_dpll
= shared_dpll
;
11546 crtc_state
->dpll_hw_state
= dpll_hw_state
;
11547 crtc_state
->pch_pfit
.force_thru
= force_thru
;
11548 if (IS_G4X(dev_priv
) ||
11549 IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
11550 crtc_state
->wm
= wm_state
;
11554 intel_modeset_pipe_config(struct drm_crtc
*crtc
,
11555 struct intel_crtc_state
*pipe_config
)
11557 struct drm_atomic_state
*state
= pipe_config
->base
.state
;
11558 struct intel_encoder
*encoder
;
11559 struct drm_connector
*connector
;
11560 struct drm_connector_state
*connector_state
;
11561 int base_bpp
, ret
= -EINVAL
;
11565 clear_intel_crtc_state(pipe_config
);
11567 pipe_config
->cpu_transcoder
=
11568 (enum transcoder
) to_intel_crtc(crtc
)->pipe
;
11571 * Sanitize sync polarity flags based on requested ones. If neither
11572 * positive or negative polarity is requested, treat this as meaning
11573 * negative polarity.
11575 if (!(pipe_config
->base
.adjusted_mode
.flags
&
11576 (DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NHSYNC
)))
11577 pipe_config
->base
.adjusted_mode
.flags
|= DRM_MODE_FLAG_NHSYNC
;
11579 if (!(pipe_config
->base
.adjusted_mode
.flags
&
11580 (DRM_MODE_FLAG_PVSYNC
| DRM_MODE_FLAG_NVSYNC
)))
11581 pipe_config
->base
.adjusted_mode
.flags
|= DRM_MODE_FLAG_NVSYNC
;
11583 base_bpp
= compute_baseline_pipe_bpp(to_intel_crtc(crtc
),
11589 * Determine the real pipe dimensions. Note that stereo modes can
11590 * increase the actual pipe size due to the frame doubling and
11591 * insertion of additional space for blanks between the frame. This
11592 * is stored in the crtc timings. We use the requested mode to do this
11593 * computation to clearly distinguish it from the adjusted mode, which
11594 * can be changed by the connectors in the below retry loop.
11596 drm_mode_get_hv_timing(&pipe_config
->base
.mode
,
11597 &pipe_config
->pipe_src_w
,
11598 &pipe_config
->pipe_src_h
);
11600 for_each_new_connector_in_state(state
, connector
, connector_state
, i
) {
11601 if (connector_state
->crtc
!= crtc
)
11604 encoder
= to_intel_encoder(connector_state
->best_encoder
);
11606 if (!check_single_encoder_cloning(state
, to_intel_crtc(crtc
), encoder
)) {
11607 DRM_DEBUG_KMS("rejecting invalid cloning configuration\n");
11612 * Determine output_types before calling the .compute_config()
11613 * hooks so that the hooks can use this information safely.
11615 pipe_config
->output_types
|= 1 << encoder
->type
;
11619 /* Ensure the port clock defaults are reset when retrying. */
11620 pipe_config
->port_clock
= 0;
11621 pipe_config
->pixel_multiplier
= 1;
11623 /* Fill in default crtc timings, allow encoders to overwrite them. */
11624 drm_mode_set_crtcinfo(&pipe_config
->base
.adjusted_mode
,
11625 CRTC_STEREO_DOUBLE
);
11627 /* Pass our mode to the connectors and the CRTC to give them a chance to
11628 * adjust it according to limitations or connector properties, and also
11629 * a chance to reject the mode entirely.
11631 for_each_new_connector_in_state(state
, connector
, connector_state
, i
) {
11632 if (connector_state
->crtc
!= crtc
)
11635 encoder
= to_intel_encoder(connector_state
->best_encoder
);
11637 if (!(encoder
->compute_config(encoder
, pipe_config
, connector_state
))) {
11638 DRM_DEBUG_KMS("Encoder config failure\n");
11643 /* Set default port clock if not overwritten by the encoder. Needs to be
11644 * done afterwards in case the encoder adjusts the mode. */
11645 if (!pipe_config
->port_clock
)
11646 pipe_config
->port_clock
= pipe_config
->base
.adjusted_mode
.crtc_clock
11647 * pipe_config
->pixel_multiplier
;
11649 ret
= intel_crtc_compute_config(to_intel_crtc(crtc
), pipe_config
);
11651 DRM_DEBUG_KMS("CRTC fixup failed\n");
11655 if (ret
== RETRY
) {
11656 if (WARN(!retry
, "loop in pipe configuration computation\n")) {
11661 DRM_DEBUG_KMS("CRTC bw constrained, retrying\n");
11663 goto encoder_retry
;
11666 /* Dithering seems to not pass-through bits correctly when it should, so
11667 * only enable it on 6bpc panels and when its not a compliance
11668 * test requesting 6bpc video pattern.
11670 pipe_config
->dither
= (pipe_config
->pipe_bpp
== 6*3) &&
11671 !pipe_config
->dither_force_disable
;
11672 DRM_DEBUG_KMS("hw max bpp: %i, pipe bpp: %i, dithering: %i\n",
11673 base_bpp
, pipe_config
->pipe_bpp
, pipe_config
->dither
);
11680 intel_modeset_update_crtc_state(struct drm_atomic_state
*state
)
11682 struct drm_crtc
*crtc
;
11683 struct drm_crtc_state
*new_crtc_state
;
11686 /* Double check state. */
11687 for_each_new_crtc_in_state(state
, crtc
, new_crtc_state
, i
) {
11688 to_intel_crtc(crtc
)->config
= to_intel_crtc_state(new_crtc_state
);
11691 * Update legacy state to satisfy fbc code. This can
11692 * be removed when fbc uses the atomic state.
11694 if (drm_atomic_get_existing_plane_state(state
, crtc
->primary
)) {
11695 struct drm_plane_state
*plane_state
= crtc
->primary
->state
;
11697 crtc
->primary
->fb
= plane_state
->fb
;
11698 crtc
->x
= plane_state
->src_x
>> 16;
11699 crtc
->y
= plane_state
->src_y
>> 16;
11704 static bool intel_fuzzy_clock_check(int clock1
, int clock2
)
11708 if (clock1
== clock2
)
11711 if (!clock1
|| !clock2
)
11714 diff
= abs(clock1
- clock2
);
11716 if (((((diff
+ clock1
+ clock2
) * 100)) / (clock1
+ clock2
)) < 105)
11723 intel_compare_m_n(unsigned int m
, unsigned int n
,
11724 unsigned int m2
, unsigned int n2
,
11727 if (m
== m2
&& n
== n2
)
11730 if (exact
|| !m
|| !n
|| !m2
|| !n2
)
11733 BUILD_BUG_ON(DATA_LINK_M_N_MASK
> INT_MAX
);
11740 } else if (n
< n2
) {
11750 return intel_fuzzy_clock_check(m
, m2
);
11754 intel_compare_link_m_n(const struct intel_link_m_n
*m_n
,
11755 struct intel_link_m_n
*m2_n2
,
11758 if (m_n
->tu
== m2_n2
->tu
&&
11759 intel_compare_m_n(m_n
->gmch_m
, m_n
->gmch_n
,
11760 m2_n2
->gmch_m
, m2_n2
->gmch_n
, !adjust
) &&
11761 intel_compare_m_n(m_n
->link_m
, m_n
->link_n
,
11762 m2_n2
->link_m
, m2_n2
->link_n
, !adjust
)) {
11772 static void __printf(3, 4)
11773 pipe_config_err(bool adjust
, const char *name
, const char *format
, ...)
11776 unsigned int category
;
11777 struct va_format vaf
;
11781 level
= KERN_DEBUG
;
11782 category
= DRM_UT_KMS
;
11785 category
= DRM_UT_NONE
;
11788 va_start(args
, format
);
11792 drm_printk(level
, category
, "mismatch in %s %pV", name
, &vaf
);
11798 intel_pipe_config_compare(struct drm_i915_private
*dev_priv
,
11799 struct intel_crtc_state
*current_config
,
11800 struct intel_crtc_state
*pipe_config
,
11805 #define PIPE_CONF_CHECK_X(name) \
11806 if (current_config->name != pipe_config->name) { \
11807 pipe_config_err(adjust, __stringify(name), \
11808 "(expected 0x%08x, found 0x%08x)\n", \
11809 current_config->name, \
11810 pipe_config->name); \
11814 #define PIPE_CONF_CHECK_I(name) \
11815 if (current_config->name != pipe_config->name) { \
11816 pipe_config_err(adjust, __stringify(name), \
11817 "(expected %i, found %i)\n", \
11818 current_config->name, \
11819 pipe_config->name); \
11823 #define PIPE_CONF_CHECK_P(name) \
11824 if (current_config->name != pipe_config->name) { \
11825 pipe_config_err(adjust, __stringify(name), \
11826 "(expected %p, found %p)\n", \
11827 current_config->name, \
11828 pipe_config->name); \
11832 #define PIPE_CONF_CHECK_M_N(name) \
11833 if (!intel_compare_link_m_n(¤t_config->name, \
11834 &pipe_config->name,\
11836 pipe_config_err(adjust, __stringify(name), \
11837 "(expected tu %i gmch %i/%i link %i/%i, " \
11838 "found tu %i, gmch %i/%i link %i/%i)\n", \
11839 current_config->name.tu, \
11840 current_config->name.gmch_m, \
11841 current_config->name.gmch_n, \
11842 current_config->name.link_m, \
11843 current_config->name.link_n, \
11844 pipe_config->name.tu, \
11845 pipe_config->name.gmch_m, \
11846 pipe_config->name.gmch_n, \
11847 pipe_config->name.link_m, \
11848 pipe_config->name.link_n); \
11852 /* This is required for BDW+ where there is only one set of registers for
11853 * switching between high and low RR.
11854 * This macro can be used whenever a comparison has to be made between one
11855 * hw state and multiple sw state variables.
11857 #define PIPE_CONF_CHECK_M_N_ALT(name, alt_name) \
11858 if (!intel_compare_link_m_n(¤t_config->name, \
11859 &pipe_config->name, adjust) && \
11860 !intel_compare_link_m_n(¤t_config->alt_name, \
11861 &pipe_config->name, adjust)) { \
11862 pipe_config_err(adjust, __stringify(name), \
11863 "(expected tu %i gmch %i/%i link %i/%i, " \
11864 "or tu %i gmch %i/%i link %i/%i, " \
11865 "found tu %i, gmch %i/%i link %i/%i)\n", \
11866 current_config->name.tu, \
11867 current_config->name.gmch_m, \
11868 current_config->name.gmch_n, \
11869 current_config->name.link_m, \
11870 current_config->name.link_n, \
11871 current_config->alt_name.tu, \
11872 current_config->alt_name.gmch_m, \
11873 current_config->alt_name.gmch_n, \
11874 current_config->alt_name.link_m, \
11875 current_config->alt_name.link_n, \
11876 pipe_config->name.tu, \
11877 pipe_config->name.gmch_m, \
11878 pipe_config->name.gmch_n, \
11879 pipe_config->name.link_m, \
11880 pipe_config->name.link_n); \
11884 #define PIPE_CONF_CHECK_FLAGS(name, mask) \
11885 if ((current_config->name ^ pipe_config->name) & (mask)) { \
11886 pipe_config_err(adjust, __stringify(name), \
11887 "(%x) (expected %i, found %i)\n", \
11889 current_config->name & (mask), \
11890 pipe_config->name & (mask)); \
11894 #define PIPE_CONF_CHECK_CLOCK_FUZZY(name) \
11895 if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \
11896 pipe_config_err(adjust, __stringify(name), \
11897 "(expected %i, found %i)\n", \
11898 current_config->name, \
11899 pipe_config->name); \
11903 #define PIPE_CONF_QUIRK(quirk) \
11904 ((current_config->quirks | pipe_config->quirks) & (quirk))
11906 PIPE_CONF_CHECK_I(cpu_transcoder
);
11908 PIPE_CONF_CHECK_I(has_pch_encoder
);
11909 PIPE_CONF_CHECK_I(fdi_lanes
);
11910 PIPE_CONF_CHECK_M_N(fdi_m_n
);
11912 PIPE_CONF_CHECK_I(lane_count
);
11913 PIPE_CONF_CHECK_X(lane_lat_optim_mask
);
11915 if (INTEL_GEN(dev_priv
) < 8) {
11916 PIPE_CONF_CHECK_M_N(dp_m_n
);
11918 if (current_config
->has_drrs
)
11919 PIPE_CONF_CHECK_M_N(dp_m2_n2
);
11921 PIPE_CONF_CHECK_M_N_ALT(dp_m_n
, dp_m2_n2
);
11923 PIPE_CONF_CHECK_X(output_types
);
11925 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hdisplay
);
11926 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_htotal
);
11927 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hblank_start
);
11928 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hblank_end
);
11929 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hsync_start
);
11930 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hsync_end
);
11932 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vdisplay
);
11933 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vtotal
);
11934 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vblank_start
);
11935 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vblank_end
);
11936 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vsync_start
);
11937 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vsync_end
);
11939 PIPE_CONF_CHECK_I(pixel_multiplier
);
11940 PIPE_CONF_CHECK_I(has_hdmi_sink
);
11941 if ((INTEL_GEN(dev_priv
) < 8 && !IS_HASWELL(dev_priv
)) ||
11942 IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
11943 PIPE_CONF_CHECK_I(limited_color_range
);
11945 PIPE_CONF_CHECK_I(hdmi_scrambling
);
11946 PIPE_CONF_CHECK_I(hdmi_high_tmds_clock_ratio
);
11947 PIPE_CONF_CHECK_I(has_infoframe
);
11949 PIPE_CONF_CHECK_I(has_audio
);
11951 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
11952 DRM_MODE_FLAG_INTERLACE
);
11954 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS
)) {
11955 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
11956 DRM_MODE_FLAG_PHSYNC
);
11957 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
11958 DRM_MODE_FLAG_NHSYNC
);
11959 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
11960 DRM_MODE_FLAG_PVSYNC
);
11961 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
11962 DRM_MODE_FLAG_NVSYNC
);
11965 PIPE_CONF_CHECK_X(gmch_pfit
.control
);
11966 /* pfit ratios are autocomputed by the hw on gen4+ */
11967 if (INTEL_GEN(dev_priv
) < 4)
11968 PIPE_CONF_CHECK_X(gmch_pfit
.pgm_ratios
);
11969 PIPE_CONF_CHECK_X(gmch_pfit
.lvds_border_bits
);
11972 PIPE_CONF_CHECK_I(pipe_src_w
);
11973 PIPE_CONF_CHECK_I(pipe_src_h
);
11975 PIPE_CONF_CHECK_I(pch_pfit
.enabled
);
11976 if (current_config
->pch_pfit
.enabled
) {
11977 PIPE_CONF_CHECK_X(pch_pfit
.pos
);
11978 PIPE_CONF_CHECK_X(pch_pfit
.size
);
11981 PIPE_CONF_CHECK_I(scaler_state
.scaler_id
);
11982 PIPE_CONF_CHECK_CLOCK_FUZZY(pixel_rate
);
11985 /* BDW+ don't expose a synchronous way to read the state */
11986 if (IS_HASWELL(dev_priv
))
11987 PIPE_CONF_CHECK_I(ips_enabled
);
11989 PIPE_CONF_CHECK_I(double_wide
);
11991 PIPE_CONF_CHECK_P(shared_dpll
);
11992 PIPE_CONF_CHECK_X(dpll_hw_state
.dpll
);
11993 PIPE_CONF_CHECK_X(dpll_hw_state
.dpll_md
);
11994 PIPE_CONF_CHECK_X(dpll_hw_state
.fp0
);
11995 PIPE_CONF_CHECK_X(dpll_hw_state
.fp1
);
11996 PIPE_CONF_CHECK_X(dpll_hw_state
.wrpll
);
11997 PIPE_CONF_CHECK_X(dpll_hw_state
.spll
);
11998 PIPE_CONF_CHECK_X(dpll_hw_state
.ctrl1
);
11999 PIPE_CONF_CHECK_X(dpll_hw_state
.cfgcr1
);
12000 PIPE_CONF_CHECK_X(dpll_hw_state
.cfgcr2
);
12002 PIPE_CONF_CHECK_X(dsi_pll
.ctrl
);
12003 PIPE_CONF_CHECK_X(dsi_pll
.div
);
12005 if (IS_G4X(dev_priv
) || INTEL_GEN(dev_priv
) >= 5)
12006 PIPE_CONF_CHECK_I(pipe_bpp
);
12008 PIPE_CONF_CHECK_CLOCK_FUZZY(base
.adjusted_mode
.crtc_clock
);
12009 PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock
);
12011 #undef PIPE_CONF_CHECK_X
12012 #undef PIPE_CONF_CHECK_I
12013 #undef PIPE_CONF_CHECK_P
12014 #undef PIPE_CONF_CHECK_FLAGS
12015 #undef PIPE_CONF_CHECK_CLOCK_FUZZY
12016 #undef PIPE_CONF_QUIRK
12021 static void intel_pipe_config_sanity_check(struct drm_i915_private
*dev_priv
,
12022 const struct intel_crtc_state
*pipe_config
)
12024 if (pipe_config
->has_pch_encoder
) {
12025 int fdi_dotclock
= intel_dotclock_calculate(intel_fdi_link_freq(dev_priv
, pipe_config
),
12026 &pipe_config
->fdi_m_n
);
12027 int dotclock
= pipe_config
->base
.adjusted_mode
.crtc_clock
;
12030 * FDI already provided one idea for the dotclock.
12031 * Yell if the encoder disagrees.
12033 WARN(!intel_fuzzy_clock_check(fdi_dotclock
, dotclock
),
12034 "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n",
12035 fdi_dotclock
, dotclock
);
12039 static void verify_wm_state(struct drm_crtc
*crtc
,
12040 struct drm_crtc_state
*new_state
)
12042 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
12043 struct skl_ddb_allocation hw_ddb
, *sw_ddb
;
12044 struct skl_pipe_wm hw_wm
, *sw_wm
;
12045 struct skl_plane_wm
*hw_plane_wm
, *sw_plane_wm
;
12046 struct skl_ddb_entry
*hw_ddb_entry
, *sw_ddb_entry
;
12047 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
12048 const enum pipe pipe
= intel_crtc
->pipe
;
12049 int plane
, level
, max_level
= ilk_wm_max_level(dev_priv
);
12051 if (INTEL_GEN(dev_priv
) < 9 || !new_state
->active
)
12054 skl_pipe_wm_get_hw_state(crtc
, &hw_wm
);
12055 sw_wm
= &to_intel_crtc_state(new_state
)->wm
.skl
.optimal
;
12057 skl_ddb_get_hw_state(dev_priv
, &hw_ddb
);
12058 sw_ddb
= &dev_priv
->wm
.skl_hw
.ddb
;
12061 for_each_universal_plane(dev_priv
, pipe
, plane
) {
12062 hw_plane_wm
= &hw_wm
.planes
[plane
];
12063 sw_plane_wm
= &sw_wm
->planes
[plane
];
12066 for (level
= 0; level
<= max_level
; level
++) {
12067 if (skl_wm_level_equals(&hw_plane_wm
->wm
[level
],
12068 &sw_plane_wm
->wm
[level
]))
12071 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",
12072 pipe_name(pipe
), plane
+ 1, level
,
12073 sw_plane_wm
->wm
[level
].plane_en
,
12074 sw_plane_wm
->wm
[level
].plane_res_b
,
12075 sw_plane_wm
->wm
[level
].plane_res_l
,
12076 hw_plane_wm
->wm
[level
].plane_en
,
12077 hw_plane_wm
->wm
[level
].plane_res_b
,
12078 hw_plane_wm
->wm
[level
].plane_res_l
);
12081 if (!skl_wm_level_equals(&hw_plane_wm
->trans_wm
,
12082 &sw_plane_wm
->trans_wm
)) {
12083 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",
12084 pipe_name(pipe
), plane
+ 1,
12085 sw_plane_wm
->trans_wm
.plane_en
,
12086 sw_plane_wm
->trans_wm
.plane_res_b
,
12087 sw_plane_wm
->trans_wm
.plane_res_l
,
12088 hw_plane_wm
->trans_wm
.plane_en
,
12089 hw_plane_wm
->trans_wm
.plane_res_b
,
12090 hw_plane_wm
->trans_wm
.plane_res_l
);
12094 hw_ddb_entry
= &hw_ddb
.plane
[pipe
][plane
];
12095 sw_ddb_entry
= &sw_ddb
->plane
[pipe
][plane
];
12097 if (!skl_ddb_entry_equal(hw_ddb_entry
, sw_ddb_entry
)) {
12098 DRM_ERROR("mismatch in DDB state pipe %c plane %d (expected (%u,%u), found (%u,%u))\n",
12099 pipe_name(pipe
), plane
+ 1,
12100 sw_ddb_entry
->start
, sw_ddb_entry
->end
,
12101 hw_ddb_entry
->start
, hw_ddb_entry
->end
);
12107 * If the cursor plane isn't active, we may not have updated it's ddb
12108 * allocation. In that case since the ddb allocation will be updated
12109 * once the plane becomes visible, we can skip this check
12112 hw_plane_wm
= &hw_wm
.planes
[PLANE_CURSOR
];
12113 sw_plane_wm
= &sw_wm
->planes
[PLANE_CURSOR
];
12116 for (level
= 0; level
<= max_level
; level
++) {
12117 if (skl_wm_level_equals(&hw_plane_wm
->wm
[level
],
12118 &sw_plane_wm
->wm
[level
]))
12121 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",
12122 pipe_name(pipe
), level
,
12123 sw_plane_wm
->wm
[level
].plane_en
,
12124 sw_plane_wm
->wm
[level
].plane_res_b
,
12125 sw_plane_wm
->wm
[level
].plane_res_l
,
12126 hw_plane_wm
->wm
[level
].plane_en
,
12127 hw_plane_wm
->wm
[level
].plane_res_b
,
12128 hw_plane_wm
->wm
[level
].plane_res_l
);
12131 if (!skl_wm_level_equals(&hw_plane_wm
->trans_wm
,
12132 &sw_plane_wm
->trans_wm
)) {
12133 DRM_ERROR("mismatch in trans WM pipe %c cursor (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
12135 sw_plane_wm
->trans_wm
.plane_en
,
12136 sw_plane_wm
->trans_wm
.plane_res_b
,
12137 sw_plane_wm
->trans_wm
.plane_res_l
,
12138 hw_plane_wm
->trans_wm
.plane_en
,
12139 hw_plane_wm
->trans_wm
.plane_res_b
,
12140 hw_plane_wm
->trans_wm
.plane_res_l
);
12144 hw_ddb_entry
= &hw_ddb
.plane
[pipe
][PLANE_CURSOR
];
12145 sw_ddb_entry
= &sw_ddb
->plane
[pipe
][PLANE_CURSOR
];
12147 if (!skl_ddb_entry_equal(hw_ddb_entry
, sw_ddb_entry
)) {
12148 DRM_ERROR("mismatch in DDB state pipe %c cursor (expected (%u,%u), found (%u,%u))\n",
12150 sw_ddb_entry
->start
, sw_ddb_entry
->end
,
12151 hw_ddb_entry
->start
, hw_ddb_entry
->end
);
12157 verify_connector_state(struct drm_device
*dev
,
12158 struct drm_atomic_state
*state
,
12159 struct drm_crtc
*crtc
)
12161 struct drm_connector
*connector
;
12162 struct drm_connector_state
*new_conn_state
;
12165 for_each_new_connector_in_state(state
, connector
, new_conn_state
, i
) {
12166 struct drm_encoder
*encoder
= connector
->encoder
;
12167 struct drm_crtc_state
*crtc_state
= NULL
;
12169 if (new_conn_state
->crtc
!= crtc
)
12173 crtc_state
= drm_atomic_get_new_crtc_state(state
, new_conn_state
->crtc
);
12175 intel_connector_verify_state(crtc_state
, new_conn_state
);
12177 I915_STATE_WARN(new_conn_state
->best_encoder
!= encoder
,
12178 "connector's atomic encoder doesn't match legacy encoder\n");
12183 verify_encoder_state(struct drm_device
*dev
, struct drm_atomic_state
*state
)
12185 struct intel_encoder
*encoder
;
12186 struct drm_connector
*connector
;
12187 struct drm_connector_state
*old_conn_state
, *new_conn_state
;
12190 for_each_intel_encoder(dev
, encoder
) {
12191 bool enabled
= false, found
= false;
12194 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
12195 encoder
->base
.base
.id
,
12196 encoder
->base
.name
);
12198 for_each_oldnew_connector_in_state(state
, connector
, old_conn_state
,
12199 new_conn_state
, i
) {
12200 if (old_conn_state
->best_encoder
== &encoder
->base
)
12203 if (new_conn_state
->best_encoder
!= &encoder
->base
)
12205 found
= enabled
= true;
12207 I915_STATE_WARN(new_conn_state
->crtc
!=
12208 encoder
->base
.crtc
,
12209 "connector's crtc doesn't match encoder crtc\n");
12215 I915_STATE_WARN(!!encoder
->base
.crtc
!= enabled
,
12216 "encoder's enabled state mismatch "
12217 "(expected %i, found %i)\n",
12218 !!encoder
->base
.crtc
, enabled
);
12220 if (!encoder
->base
.crtc
) {
12223 active
= encoder
->get_hw_state(encoder
, &pipe
);
12224 I915_STATE_WARN(active
,
12225 "encoder detached but still enabled on pipe %c.\n",
12232 verify_crtc_state(struct drm_crtc
*crtc
,
12233 struct drm_crtc_state
*old_crtc_state
,
12234 struct drm_crtc_state
*new_crtc_state
)
12236 struct drm_device
*dev
= crtc
->dev
;
12237 struct drm_i915_private
*dev_priv
= to_i915(dev
);
12238 struct intel_encoder
*encoder
;
12239 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
12240 struct intel_crtc_state
*pipe_config
, *sw_config
;
12241 struct drm_atomic_state
*old_state
;
12244 old_state
= old_crtc_state
->state
;
12245 __drm_atomic_helper_crtc_destroy_state(old_crtc_state
);
12246 pipe_config
= to_intel_crtc_state(old_crtc_state
);
12247 memset(pipe_config
, 0, sizeof(*pipe_config
));
12248 pipe_config
->base
.crtc
= crtc
;
12249 pipe_config
->base
.state
= old_state
;
12251 DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc
->base
.id
, crtc
->name
);
12253 active
= dev_priv
->display
.get_pipe_config(intel_crtc
, pipe_config
);
12255 /* we keep both pipes enabled on 830 */
12256 if (IS_I830(dev_priv
))
12257 active
= new_crtc_state
->active
;
12259 I915_STATE_WARN(new_crtc_state
->active
!= active
,
12260 "crtc active state doesn't match with hw state "
12261 "(expected %i, found %i)\n", new_crtc_state
->active
, active
);
12263 I915_STATE_WARN(intel_crtc
->active
!= new_crtc_state
->active
,
12264 "transitional active state does not match atomic hw state "
12265 "(expected %i, found %i)\n", new_crtc_state
->active
, intel_crtc
->active
);
12267 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
12270 active
= encoder
->get_hw_state(encoder
, &pipe
);
12271 I915_STATE_WARN(active
!= new_crtc_state
->active
,
12272 "[ENCODER:%i] active %i with crtc active %i\n",
12273 encoder
->base
.base
.id
, active
, new_crtc_state
->active
);
12275 I915_STATE_WARN(active
&& intel_crtc
->pipe
!= pipe
,
12276 "Encoder connected to wrong pipe %c\n",
12280 pipe_config
->output_types
|= 1 << encoder
->type
;
12281 encoder
->get_config(encoder
, pipe_config
);
12285 intel_crtc_compute_pixel_rate(pipe_config
);
12287 if (!new_crtc_state
->active
)
12290 intel_pipe_config_sanity_check(dev_priv
, pipe_config
);
12292 sw_config
= to_intel_crtc_state(new_crtc_state
);
12293 if (!intel_pipe_config_compare(dev_priv
, sw_config
,
12294 pipe_config
, false)) {
12295 I915_STATE_WARN(1, "pipe state doesn't match!\n");
12296 intel_dump_pipe_config(intel_crtc
, pipe_config
,
12298 intel_dump_pipe_config(intel_crtc
, sw_config
,
12304 verify_single_dpll_state(struct drm_i915_private
*dev_priv
,
12305 struct intel_shared_dpll
*pll
,
12306 struct drm_crtc
*crtc
,
12307 struct drm_crtc_state
*new_state
)
12309 struct intel_dpll_hw_state dpll_hw_state
;
12310 unsigned crtc_mask
;
12313 memset(&dpll_hw_state
, 0, sizeof(dpll_hw_state
));
12315 DRM_DEBUG_KMS("%s\n", pll
->name
);
12317 active
= pll
->funcs
.get_hw_state(dev_priv
, pll
, &dpll_hw_state
);
12319 if (!(pll
->flags
& INTEL_DPLL_ALWAYS_ON
)) {
12320 I915_STATE_WARN(!pll
->on
&& pll
->active_mask
,
12321 "pll in active use but not on in sw tracking\n");
12322 I915_STATE_WARN(pll
->on
&& !pll
->active_mask
,
12323 "pll is on but not used by any active crtc\n");
12324 I915_STATE_WARN(pll
->on
!= active
,
12325 "pll on state mismatch (expected %i, found %i)\n",
12330 I915_STATE_WARN(pll
->active_mask
& ~pll
->state
.crtc_mask
,
12331 "more active pll users than references: %x vs %x\n",
12332 pll
->active_mask
, pll
->state
.crtc_mask
);
12337 crtc_mask
= 1 << drm_crtc_index(crtc
);
12339 if (new_state
->active
)
12340 I915_STATE_WARN(!(pll
->active_mask
& crtc_mask
),
12341 "pll active mismatch (expected pipe %c in active mask 0x%02x)\n",
12342 pipe_name(drm_crtc_index(crtc
)), pll
->active_mask
);
12344 I915_STATE_WARN(pll
->active_mask
& crtc_mask
,
12345 "pll active mismatch (didn't expect pipe %c in active mask 0x%02x)\n",
12346 pipe_name(drm_crtc_index(crtc
)), pll
->active_mask
);
12348 I915_STATE_WARN(!(pll
->state
.crtc_mask
& crtc_mask
),
12349 "pll enabled crtcs mismatch (expected 0x%x in 0x%02x)\n",
12350 crtc_mask
, pll
->state
.crtc_mask
);
12352 I915_STATE_WARN(pll
->on
&& memcmp(&pll
->state
.hw_state
,
12354 sizeof(dpll_hw_state
)),
12355 "pll hw state mismatch\n");
12359 verify_shared_dpll_state(struct drm_device
*dev
, struct drm_crtc
*crtc
,
12360 struct drm_crtc_state
*old_crtc_state
,
12361 struct drm_crtc_state
*new_crtc_state
)
12363 struct drm_i915_private
*dev_priv
= to_i915(dev
);
12364 struct intel_crtc_state
*old_state
= to_intel_crtc_state(old_crtc_state
);
12365 struct intel_crtc_state
*new_state
= to_intel_crtc_state(new_crtc_state
);
12367 if (new_state
->shared_dpll
)
12368 verify_single_dpll_state(dev_priv
, new_state
->shared_dpll
, crtc
, new_crtc_state
);
12370 if (old_state
->shared_dpll
&&
12371 old_state
->shared_dpll
!= new_state
->shared_dpll
) {
12372 unsigned crtc_mask
= 1 << drm_crtc_index(crtc
);
12373 struct intel_shared_dpll
*pll
= old_state
->shared_dpll
;
12375 I915_STATE_WARN(pll
->active_mask
& crtc_mask
,
12376 "pll active mismatch (didn't expect pipe %c in active mask)\n",
12377 pipe_name(drm_crtc_index(crtc
)));
12378 I915_STATE_WARN(pll
->state
.crtc_mask
& crtc_mask
,
12379 "pll enabled crtcs mismatch (found %x in enabled mask)\n",
12380 pipe_name(drm_crtc_index(crtc
)));
12385 intel_modeset_verify_crtc(struct drm_crtc
*crtc
,
12386 struct drm_atomic_state
*state
,
12387 struct drm_crtc_state
*old_state
,
12388 struct drm_crtc_state
*new_state
)
12390 if (!needs_modeset(new_state
) &&
12391 !to_intel_crtc_state(new_state
)->update_pipe
)
12394 verify_wm_state(crtc
, new_state
);
12395 verify_connector_state(crtc
->dev
, state
, crtc
);
12396 verify_crtc_state(crtc
, old_state
, new_state
);
12397 verify_shared_dpll_state(crtc
->dev
, crtc
, old_state
, new_state
);
12401 verify_disabled_dpll_state(struct drm_device
*dev
)
12403 struct drm_i915_private
*dev_priv
= to_i915(dev
);
12406 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++)
12407 verify_single_dpll_state(dev_priv
, &dev_priv
->shared_dplls
[i
], NULL
, NULL
);
12411 intel_modeset_verify_disabled(struct drm_device
*dev
,
12412 struct drm_atomic_state
*state
)
12414 verify_encoder_state(dev
, state
);
12415 verify_connector_state(dev
, state
, NULL
);
12416 verify_disabled_dpll_state(dev
);
12419 static void update_scanline_offset(struct intel_crtc
*crtc
)
12421 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
12424 * The scanline counter increments at the leading edge of hsync.
12426 * On most platforms it starts counting from vtotal-1 on the
12427 * first active line. That means the scanline counter value is
12428 * always one less than what we would expect. Ie. just after
12429 * start of vblank, which also occurs at start of hsync (on the
12430 * last active line), the scanline counter will read vblank_start-1.
12432 * On gen2 the scanline counter starts counting from 1 instead
12433 * of vtotal-1, so we have to subtract one (or rather add vtotal-1
12434 * to keep the value positive), instead of adding one.
12436 * On HSW+ the behaviour of the scanline counter depends on the output
12437 * type. For DP ports it behaves like most other platforms, but on HDMI
12438 * there's an extra 1 line difference. So we need to add two instead of
12439 * one to the value.
12441 * On VLV/CHV DSI the scanline counter would appear to increment
12442 * approx. 1/3 of a scanline before start of vblank. Unfortunately
12443 * that means we can't tell whether we're in vblank or not while
12444 * we're on that particular line. We must still set scanline_offset
12445 * to 1 so that the vblank timestamps come out correct when we query
12446 * the scanline counter from within the vblank interrupt handler.
12447 * However if queried just before the start of vblank we'll get an
12448 * answer that's slightly in the future.
12450 if (IS_GEN2(dev_priv
)) {
12451 const struct drm_display_mode
*adjusted_mode
= &crtc
->config
->base
.adjusted_mode
;
12454 vtotal
= adjusted_mode
->crtc_vtotal
;
12455 if (adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
)
12458 crtc
->scanline_offset
= vtotal
- 1;
12459 } else if (HAS_DDI(dev_priv
) &&
12460 intel_crtc_has_type(crtc
->config
, INTEL_OUTPUT_HDMI
)) {
12461 crtc
->scanline_offset
= 2;
12463 crtc
->scanline_offset
= 1;
12466 static void intel_modeset_clear_plls(struct drm_atomic_state
*state
)
12468 struct drm_device
*dev
= state
->dev
;
12469 struct drm_i915_private
*dev_priv
= to_i915(dev
);
12470 struct drm_crtc
*crtc
;
12471 struct drm_crtc_state
*old_crtc_state
, *new_crtc_state
;
12474 if (!dev_priv
->display
.crtc_compute_clock
)
12477 for_each_oldnew_crtc_in_state(state
, crtc
, old_crtc_state
, new_crtc_state
, i
) {
12478 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
12479 struct intel_shared_dpll
*old_dpll
=
12480 to_intel_crtc_state(old_crtc_state
)->shared_dpll
;
12482 if (!needs_modeset(new_crtc_state
))
12485 to_intel_crtc_state(new_crtc_state
)->shared_dpll
= NULL
;
12490 intel_release_shared_dpll(old_dpll
, intel_crtc
, state
);
12495 * This implements the workaround described in the "notes" section of the mode
12496 * set sequence documentation. When going from no pipes or single pipe to
12497 * multiple pipes, and planes are enabled after the pipe, we need to wait at
12498 * least 2 vblanks on the first pipe before enabling planes on the second pipe.
12500 static int haswell_mode_set_planes_workaround(struct drm_atomic_state
*state
)
12502 struct drm_crtc_state
*crtc_state
;
12503 struct intel_crtc
*intel_crtc
;
12504 struct drm_crtc
*crtc
;
12505 struct intel_crtc_state
*first_crtc_state
= NULL
;
12506 struct intel_crtc_state
*other_crtc_state
= NULL
;
12507 enum pipe first_pipe
= INVALID_PIPE
, enabled_pipe
= INVALID_PIPE
;
12510 /* look at all crtc's that are going to be enabled in during modeset */
12511 for_each_new_crtc_in_state(state
, crtc
, crtc_state
, i
) {
12512 intel_crtc
= to_intel_crtc(crtc
);
12514 if (!crtc_state
->active
|| !needs_modeset(crtc_state
))
12517 if (first_crtc_state
) {
12518 other_crtc_state
= to_intel_crtc_state(crtc_state
);
12521 first_crtc_state
= to_intel_crtc_state(crtc_state
);
12522 first_pipe
= intel_crtc
->pipe
;
12526 /* No workaround needed? */
12527 if (!first_crtc_state
)
12530 /* w/a possibly needed, check how many crtc's are already enabled. */
12531 for_each_intel_crtc(state
->dev
, intel_crtc
) {
12532 struct intel_crtc_state
*pipe_config
;
12534 pipe_config
= intel_atomic_get_crtc_state(state
, intel_crtc
);
12535 if (IS_ERR(pipe_config
))
12536 return PTR_ERR(pipe_config
);
12538 pipe_config
->hsw_workaround_pipe
= INVALID_PIPE
;
12540 if (!pipe_config
->base
.active
||
12541 needs_modeset(&pipe_config
->base
))
12544 /* 2 or more enabled crtcs means no need for w/a */
12545 if (enabled_pipe
!= INVALID_PIPE
)
12548 enabled_pipe
= intel_crtc
->pipe
;
12551 if (enabled_pipe
!= INVALID_PIPE
)
12552 first_crtc_state
->hsw_workaround_pipe
= enabled_pipe
;
12553 else if (other_crtc_state
)
12554 other_crtc_state
->hsw_workaround_pipe
= first_pipe
;
12559 static int intel_lock_all_pipes(struct drm_atomic_state
*state
)
12561 struct drm_crtc
*crtc
;
12563 /* Add all pipes to the state */
12564 for_each_crtc(state
->dev
, crtc
) {
12565 struct drm_crtc_state
*crtc_state
;
12567 crtc_state
= drm_atomic_get_crtc_state(state
, crtc
);
12568 if (IS_ERR(crtc_state
))
12569 return PTR_ERR(crtc_state
);
12575 static int intel_modeset_all_pipes(struct drm_atomic_state
*state
)
12577 struct drm_crtc
*crtc
;
12580 * Add all pipes to the state, and force
12581 * a modeset on all the active ones.
12583 for_each_crtc(state
->dev
, crtc
) {
12584 struct drm_crtc_state
*crtc_state
;
12587 crtc_state
= drm_atomic_get_crtc_state(state
, crtc
);
12588 if (IS_ERR(crtc_state
))
12589 return PTR_ERR(crtc_state
);
12591 if (!crtc_state
->active
|| needs_modeset(crtc_state
))
12594 crtc_state
->mode_changed
= true;
12596 ret
= drm_atomic_add_affected_connectors(state
, crtc
);
12600 ret
= drm_atomic_add_affected_planes(state
, crtc
);
12608 static int intel_modeset_checks(struct drm_atomic_state
*state
)
12610 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
12611 struct drm_i915_private
*dev_priv
= to_i915(state
->dev
);
12612 struct drm_crtc
*crtc
;
12613 struct drm_crtc_state
*old_crtc_state
, *new_crtc_state
;
12616 if (!check_digital_port_conflicts(state
)) {
12617 DRM_DEBUG_KMS("rejecting conflicting digital port configuration\n");
12621 intel_state
->modeset
= true;
12622 intel_state
->active_crtcs
= dev_priv
->active_crtcs
;
12623 intel_state
->cdclk
.logical
= dev_priv
->cdclk
.logical
;
12624 intel_state
->cdclk
.actual
= dev_priv
->cdclk
.actual
;
12626 for_each_oldnew_crtc_in_state(state
, crtc
, old_crtc_state
, new_crtc_state
, i
) {
12627 if (new_crtc_state
->active
)
12628 intel_state
->active_crtcs
|= 1 << i
;
12630 intel_state
->active_crtcs
&= ~(1 << i
);
12632 if (old_crtc_state
->active
!= new_crtc_state
->active
)
12633 intel_state
->active_pipe_changes
|= drm_crtc_mask(crtc
);
12637 * See if the config requires any additional preparation, e.g.
12638 * to adjust global state with pipes off. We need to do this
12639 * here so we can get the modeset_pipe updated config for the new
12640 * mode set on this crtc. For other crtcs we need to use the
12641 * adjusted_mode bits in the crtc directly.
12643 if (dev_priv
->display
.modeset_calc_cdclk
) {
12644 ret
= dev_priv
->display
.modeset_calc_cdclk(state
);
12649 * Writes to dev_priv->cdclk.logical must protected by
12650 * holding all the crtc locks, even if we don't end up
12651 * touching the hardware
12653 if (!intel_cdclk_state_compare(&dev_priv
->cdclk
.logical
,
12654 &intel_state
->cdclk
.logical
)) {
12655 ret
= intel_lock_all_pipes(state
);
12660 /* All pipes must be switched off while we change the cdclk. */
12661 if (!intel_cdclk_state_compare(&dev_priv
->cdclk
.actual
,
12662 &intel_state
->cdclk
.actual
)) {
12663 ret
= intel_modeset_all_pipes(state
);
12668 DRM_DEBUG_KMS("New cdclk calculated to be logical %u kHz, actual %u kHz\n",
12669 intel_state
->cdclk
.logical
.cdclk
,
12670 intel_state
->cdclk
.actual
.cdclk
);
12672 to_intel_atomic_state(state
)->cdclk
.logical
= dev_priv
->cdclk
.logical
;
12675 intel_modeset_clear_plls(state
);
12677 if (IS_HASWELL(dev_priv
))
12678 return haswell_mode_set_planes_workaround(state
);
12684 * Handle calculation of various watermark data at the end of the atomic check
12685 * phase. The code here should be run after the per-crtc and per-plane 'check'
12686 * handlers to ensure that all derived state has been updated.
12688 static int calc_watermark_data(struct drm_atomic_state
*state
)
12690 struct drm_device
*dev
= state
->dev
;
12691 struct drm_i915_private
*dev_priv
= to_i915(dev
);
12693 /* Is there platform-specific watermark information to calculate? */
12694 if (dev_priv
->display
.compute_global_watermarks
)
12695 return dev_priv
->display
.compute_global_watermarks(state
);
12701 * intel_atomic_check - validate state object
12703 * @state: state to validate
12705 static int intel_atomic_check(struct drm_device
*dev
,
12706 struct drm_atomic_state
*state
)
12708 struct drm_i915_private
*dev_priv
= to_i915(dev
);
12709 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
12710 struct drm_crtc
*crtc
;
12711 struct drm_crtc_state
*old_crtc_state
, *crtc_state
;
12713 bool any_ms
= false;
12715 ret
= drm_atomic_helper_check_modeset(dev
, state
);
12719 for_each_oldnew_crtc_in_state(state
, crtc
, old_crtc_state
, crtc_state
, i
) {
12720 struct intel_crtc_state
*pipe_config
=
12721 to_intel_crtc_state(crtc_state
);
12723 /* Catch I915_MODE_FLAG_INHERITED */
12724 if (crtc_state
->mode
.private_flags
!= old_crtc_state
->mode
.private_flags
)
12725 crtc_state
->mode_changed
= true;
12727 if (!needs_modeset(crtc_state
))
12730 if (!crtc_state
->enable
) {
12735 /* FIXME: For only active_changed we shouldn't need to do any
12736 * state recomputation at all. */
12738 ret
= drm_atomic_add_affected_connectors(state
, crtc
);
12742 ret
= intel_modeset_pipe_config(crtc
, pipe_config
);
12744 intel_dump_pipe_config(to_intel_crtc(crtc
),
12745 pipe_config
, "[failed]");
12749 if (i915
.fastboot
&&
12750 intel_pipe_config_compare(dev_priv
,
12751 to_intel_crtc_state(old_crtc_state
),
12752 pipe_config
, true)) {
12753 crtc_state
->mode_changed
= false;
12754 pipe_config
->update_pipe
= true;
12757 if (needs_modeset(crtc_state
))
12760 ret
= drm_atomic_add_affected_planes(state
, crtc
);
12764 intel_dump_pipe_config(to_intel_crtc(crtc
), pipe_config
,
12765 needs_modeset(crtc_state
) ?
12766 "[modeset]" : "[fastset]");
12770 ret
= intel_modeset_checks(state
);
12775 intel_state
->cdclk
.logical
= dev_priv
->cdclk
.logical
;
12778 ret
= drm_atomic_helper_check_planes(dev
, state
);
12782 intel_fbc_choose_crtc(dev_priv
, state
);
12783 return calc_watermark_data(state
);
12786 static int intel_atomic_prepare_commit(struct drm_device
*dev
,
12787 struct drm_atomic_state
*state
)
12789 struct drm_i915_private
*dev_priv
= to_i915(dev
);
12790 struct drm_crtc_state
*crtc_state
;
12791 struct drm_crtc
*crtc
;
12794 for_each_new_crtc_in_state(state
, crtc
, crtc_state
, i
) {
12795 if (state
->legacy_cursor_update
)
12798 ret
= intel_crtc_wait_for_pending_flips(crtc
);
12802 if (atomic_read(&to_intel_crtc(crtc
)->unpin_work_count
) >= 2)
12803 flush_workqueue(dev_priv
->wq
);
12806 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
12810 ret
= drm_atomic_helper_prepare_planes(dev
, state
);
12811 mutex_unlock(&dev
->struct_mutex
);
12816 u32
intel_crtc_get_vblank_counter(struct intel_crtc
*crtc
)
12818 struct drm_device
*dev
= crtc
->base
.dev
;
12820 if (!dev
->max_vblank_count
)
12821 return drm_crtc_accurate_vblank_count(&crtc
->base
);
12823 return dev
->driver
->get_vblank_counter(dev
, crtc
->pipe
);
12826 static void intel_atomic_wait_for_vblanks(struct drm_device
*dev
,
12827 struct drm_i915_private
*dev_priv
,
12828 unsigned crtc_mask
)
12830 unsigned last_vblank_count
[I915_MAX_PIPES
];
12837 for_each_pipe(dev_priv
, pipe
) {
12838 struct intel_crtc
*crtc
= intel_get_crtc_for_pipe(dev_priv
,
12841 if (!((1 << pipe
) & crtc_mask
))
12844 ret
= drm_crtc_vblank_get(&crtc
->base
);
12845 if (WARN_ON(ret
!= 0)) {
12846 crtc_mask
&= ~(1 << pipe
);
12850 last_vblank_count
[pipe
] = drm_crtc_vblank_count(&crtc
->base
);
12853 for_each_pipe(dev_priv
, pipe
) {
12854 struct intel_crtc
*crtc
= intel_get_crtc_for_pipe(dev_priv
,
12858 if (!((1 << pipe
) & crtc_mask
))
12861 lret
= wait_event_timeout(dev
->vblank
[pipe
].queue
,
12862 last_vblank_count
[pipe
] !=
12863 drm_crtc_vblank_count(&crtc
->base
),
12864 msecs_to_jiffies(50));
12866 WARN(!lret
, "pipe %c vblank wait timed out\n", pipe_name(pipe
));
12868 drm_crtc_vblank_put(&crtc
->base
);
12872 static bool needs_vblank_wait(struct intel_crtc_state
*crtc_state
)
12874 /* fb updated, need to unpin old fb */
12875 if (crtc_state
->fb_changed
)
12878 /* wm changes, need vblank before final wm's */
12879 if (crtc_state
->update_wm_post
)
12882 if (crtc_state
->wm
.need_postvbl_update
)
12888 static void intel_update_crtc(struct drm_crtc
*crtc
,
12889 struct drm_atomic_state
*state
,
12890 struct drm_crtc_state
*old_crtc_state
,
12891 struct drm_crtc_state
*new_crtc_state
,
12892 unsigned int *crtc_vblank_mask
)
12894 struct drm_device
*dev
= crtc
->dev
;
12895 struct drm_i915_private
*dev_priv
= to_i915(dev
);
12896 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
12897 struct intel_crtc_state
*pipe_config
= to_intel_crtc_state(new_crtc_state
);
12898 bool modeset
= needs_modeset(new_crtc_state
);
12901 update_scanline_offset(intel_crtc
);
12902 dev_priv
->display
.crtc_enable(pipe_config
, state
);
12904 intel_pre_plane_update(to_intel_crtc_state(old_crtc_state
),
12908 if (drm_atomic_get_existing_plane_state(state
, crtc
->primary
)) {
12910 intel_crtc
, pipe_config
,
12911 to_intel_plane_state(crtc
->primary
->state
));
12914 drm_atomic_helper_commit_planes_on_crtc(old_crtc_state
);
12916 if (needs_vblank_wait(pipe_config
))
12917 *crtc_vblank_mask
|= drm_crtc_mask(crtc
);
12920 static void intel_update_crtcs(struct drm_atomic_state
*state
,
12921 unsigned int *crtc_vblank_mask
)
12923 struct drm_crtc
*crtc
;
12924 struct drm_crtc_state
*old_crtc_state
, *new_crtc_state
;
12927 for_each_oldnew_crtc_in_state(state
, crtc
, old_crtc_state
, new_crtc_state
, i
) {
12928 if (!new_crtc_state
->active
)
12931 intel_update_crtc(crtc
, state
, old_crtc_state
,
12932 new_crtc_state
, crtc_vblank_mask
);
12936 static void skl_update_crtcs(struct drm_atomic_state
*state
,
12937 unsigned int *crtc_vblank_mask
)
12939 struct drm_i915_private
*dev_priv
= to_i915(state
->dev
);
12940 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
12941 struct drm_crtc
*crtc
;
12942 struct intel_crtc
*intel_crtc
;
12943 struct drm_crtc_state
*old_crtc_state
, *new_crtc_state
;
12944 struct intel_crtc_state
*cstate
;
12945 unsigned int updated
= 0;
12950 const struct skl_ddb_entry
*entries
[I915_MAX_PIPES
] = {};
12952 for_each_oldnew_crtc_in_state(state
, crtc
, old_crtc_state
, new_crtc_state
, i
)
12953 /* ignore allocations for crtc's that have been turned off. */
12954 if (new_crtc_state
->active
)
12955 entries
[i
] = &to_intel_crtc_state(old_crtc_state
)->wm
.skl
.ddb
;
12958 * Whenever the number of active pipes changes, we need to make sure we
12959 * update the pipes in the right order so that their ddb allocations
12960 * never overlap with eachother inbetween CRTC updates. Otherwise we'll
12961 * cause pipe underruns and other bad stuff.
12966 for_each_oldnew_crtc_in_state(state
, crtc
, old_crtc_state
, new_crtc_state
, i
) {
12967 bool vbl_wait
= false;
12968 unsigned int cmask
= drm_crtc_mask(crtc
);
12970 intel_crtc
= to_intel_crtc(crtc
);
12971 cstate
= to_intel_crtc_state(crtc
->state
);
12972 pipe
= intel_crtc
->pipe
;
12974 if (updated
& cmask
|| !cstate
->base
.active
)
12977 if (skl_ddb_allocation_overlaps(entries
, &cstate
->wm
.skl
.ddb
, i
))
12981 entries
[i
] = &cstate
->wm
.skl
.ddb
;
12984 * If this is an already active pipe, it's DDB changed,
12985 * and this isn't the last pipe that needs updating
12986 * then we need to wait for a vblank to pass for the
12987 * new ddb allocation to take effect.
12989 if (!skl_ddb_entry_equal(&cstate
->wm
.skl
.ddb
,
12990 &to_intel_crtc_state(old_crtc_state
)->wm
.skl
.ddb
) &&
12991 !new_crtc_state
->active_changed
&&
12992 intel_state
->wm_results
.dirty_pipes
!= updated
)
12995 intel_update_crtc(crtc
, state
, old_crtc_state
,
12996 new_crtc_state
, crtc_vblank_mask
);
12999 intel_wait_for_vblank(dev_priv
, pipe
);
13003 } while (progress
);
13006 static void intel_atomic_helper_free_state(struct drm_i915_private
*dev_priv
)
13008 struct intel_atomic_state
*state
, *next
;
13009 struct llist_node
*freed
;
13011 freed
= llist_del_all(&dev_priv
->atomic_helper
.free_list
);
13012 llist_for_each_entry_safe(state
, next
, freed
, freed
)
13013 drm_atomic_state_put(&state
->base
);
13016 static void intel_atomic_helper_free_state_worker(struct work_struct
*work
)
13018 struct drm_i915_private
*dev_priv
=
13019 container_of(work
, typeof(*dev_priv
), atomic_helper
.free_work
);
13021 intel_atomic_helper_free_state(dev_priv
);
13024 static void intel_atomic_commit_tail(struct drm_atomic_state
*state
)
13026 struct drm_device
*dev
= state
->dev
;
13027 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
13028 struct drm_i915_private
*dev_priv
= to_i915(dev
);
13029 struct drm_crtc_state
*old_crtc_state
, *new_crtc_state
;
13030 struct drm_crtc
*crtc
;
13031 struct intel_crtc_state
*intel_cstate
;
13032 bool hw_check
= intel_state
->modeset
;
13033 u64 put_domains
[I915_MAX_PIPES
] = {};
13034 unsigned crtc_vblank_mask
= 0;
13037 drm_atomic_helper_wait_for_dependencies(state
);
13039 if (intel_state
->modeset
)
13040 intel_display_power_get(dev_priv
, POWER_DOMAIN_MODESET
);
13042 for_each_oldnew_crtc_in_state(state
, crtc
, old_crtc_state
, new_crtc_state
, i
) {
13043 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
13045 if (needs_modeset(new_crtc_state
) ||
13046 to_intel_crtc_state(new_crtc_state
)->update_pipe
) {
13049 put_domains
[to_intel_crtc(crtc
)->pipe
] =
13050 modeset_get_crtc_power_domains(crtc
,
13051 to_intel_crtc_state(new_crtc_state
));
13054 if (!needs_modeset(new_crtc_state
))
13057 intel_pre_plane_update(to_intel_crtc_state(old_crtc_state
),
13058 to_intel_crtc_state(new_crtc_state
));
13060 if (old_crtc_state
->active
) {
13061 intel_crtc_disable_planes(crtc
, old_crtc_state
->plane_mask
);
13062 dev_priv
->display
.crtc_disable(to_intel_crtc_state(old_crtc_state
), state
);
13063 intel_crtc
->active
= false;
13064 intel_fbc_disable(intel_crtc
);
13065 intel_disable_shared_dpll(intel_crtc
);
13068 * Underruns don't always raise
13069 * interrupts, so check manually.
13071 intel_check_cpu_fifo_underruns(dev_priv
);
13072 intel_check_pch_fifo_underruns(dev_priv
);
13074 if (!crtc
->state
->active
) {
13076 * Make sure we don't call initial_watermarks
13077 * for ILK-style watermark updates.
13079 * No clue what this is supposed to achieve.
13081 if (INTEL_GEN(dev_priv
) >= 9)
13082 dev_priv
->display
.initial_watermarks(intel_state
,
13083 to_intel_crtc_state(crtc
->state
));
13088 /* Only after disabling all output pipelines that will be changed can we
13089 * update the the output configuration. */
13090 intel_modeset_update_crtc_state(state
);
13092 if (intel_state
->modeset
) {
13093 drm_atomic_helper_update_legacy_modeset_state(state
->dev
, state
);
13095 intel_set_cdclk(dev_priv
, &dev_priv
->cdclk
.actual
);
13098 * SKL workaround: bspec recommends we disable the SAGV when we
13099 * have more then one pipe enabled
13101 if (!intel_can_enable_sagv(state
))
13102 intel_disable_sagv(dev_priv
);
13104 intel_modeset_verify_disabled(dev
, state
);
13107 /* Complete the events for pipes that have now been disabled */
13108 for_each_new_crtc_in_state(state
, crtc
, new_crtc_state
, i
) {
13109 bool modeset
= needs_modeset(new_crtc_state
);
13111 /* Complete events for now disable pipes here. */
13112 if (modeset
&& !new_crtc_state
->active
&& new_crtc_state
->event
) {
13113 spin_lock_irq(&dev
->event_lock
);
13114 drm_crtc_send_vblank_event(crtc
, new_crtc_state
->event
);
13115 spin_unlock_irq(&dev
->event_lock
);
13117 new_crtc_state
->event
= NULL
;
13121 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
13122 dev_priv
->display
.update_crtcs(state
, &crtc_vblank_mask
);
13124 /* FIXME: We should call drm_atomic_helper_commit_hw_done() here
13125 * already, but still need the state for the delayed optimization. To
13127 * - wrap the optimization/post_plane_update stuff into a per-crtc work.
13128 * - schedule that vblank worker _before_ calling hw_done
13129 * - at the start of commit_tail, cancel it _synchrously
13130 * - switch over to the vblank wait helper in the core after that since
13131 * we don't need out special handling any more.
13133 if (!state
->legacy_cursor_update
)
13134 intel_atomic_wait_for_vblanks(dev
, dev_priv
, crtc_vblank_mask
);
13137 * Now that the vblank has passed, we can go ahead and program the
13138 * optimal watermarks on platforms that need two-step watermark
13141 * TODO: Move this (and other cleanup) to an async worker eventually.
13143 for_each_new_crtc_in_state(state
, crtc
, new_crtc_state
, i
) {
13144 intel_cstate
= to_intel_crtc_state(new_crtc_state
);
13146 if (dev_priv
->display
.optimize_watermarks
)
13147 dev_priv
->display
.optimize_watermarks(intel_state
,
13151 for_each_oldnew_crtc_in_state(state
, crtc
, old_crtc_state
, new_crtc_state
, i
) {
13152 intel_post_plane_update(to_intel_crtc_state(old_crtc_state
));
13154 if (put_domains
[i
])
13155 modeset_put_power_domains(dev_priv
, put_domains
[i
]);
13157 intel_modeset_verify_crtc(crtc
, state
, old_crtc_state
, new_crtc_state
);
13160 if (intel_state
->modeset
&& intel_can_enable_sagv(state
))
13161 intel_enable_sagv(dev_priv
);
13163 drm_atomic_helper_commit_hw_done(state
);
13165 if (intel_state
->modeset
) {
13166 /* As one of the primary mmio accessors, KMS has a high
13167 * likelihood of triggering bugs in unclaimed access. After we
13168 * finish modesetting, see if an error has been flagged, and if
13169 * so enable debugging for the next modeset - and hope we catch
13172 intel_uncore_arm_unclaimed_mmio_detection(dev_priv
);
13173 intel_display_power_put(dev_priv
, POWER_DOMAIN_MODESET
);
13176 mutex_lock(&dev
->struct_mutex
);
13177 drm_atomic_helper_cleanup_planes(dev
, state
);
13178 mutex_unlock(&dev
->struct_mutex
);
13180 drm_atomic_helper_commit_cleanup_done(state
);
13182 drm_atomic_state_put(state
);
13184 intel_atomic_helper_free_state(dev_priv
);
13187 static void intel_atomic_commit_work(struct work_struct
*work
)
13189 struct drm_atomic_state
*state
=
13190 container_of(work
, struct drm_atomic_state
, commit_work
);
13192 intel_atomic_commit_tail(state
);
13195 static int __i915_sw_fence_call
13196 intel_atomic_commit_ready(struct i915_sw_fence
*fence
,
13197 enum i915_sw_fence_notify notify
)
13199 struct intel_atomic_state
*state
=
13200 container_of(fence
, struct intel_atomic_state
, commit_ready
);
13203 case FENCE_COMPLETE
:
13204 if (state
->base
.commit_work
.func
)
13205 queue_work(system_unbound_wq
, &state
->base
.commit_work
);
13210 struct intel_atomic_helper
*helper
=
13211 &to_i915(state
->base
.dev
)->atomic_helper
;
13213 if (llist_add(&state
->freed
, &helper
->free_list
))
13214 schedule_work(&helper
->free_work
);
13219 return NOTIFY_DONE
;
13222 static void intel_atomic_track_fbs(struct drm_atomic_state
*state
)
13224 struct drm_plane_state
*old_plane_state
, *new_plane_state
;
13225 struct drm_plane
*plane
;
13228 for_each_oldnew_plane_in_state(state
, plane
, old_plane_state
, new_plane_state
, i
)
13229 i915_gem_track_fb(intel_fb_obj(old_plane_state
->fb
),
13230 intel_fb_obj(new_plane_state
->fb
),
13231 to_intel_plane(plane
)->frontbuffer_bit
);
13235 * intel_atomic_commit - commit validated state object
13237 * @state: the top-level driver state object
13238 * @nonblock: nonblocking commit
13240 * This function commits a top-level state object that has been validated
13241 * with drm_atomic_helper_check().
13244 * Zero for success or -errno.
13246 static int intel_atomic_commit(struct drm_device
*dev
,
13247 struct drm_atomic_state
*state
,
13250 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
13251 struct drm_i915_private
*dev_priv
= to_i915(dev
);
13254 ret
= drm_atomic_helper_setup_commit(state
, nonblock
);
13258 drm_atomic_state_get(state
);
13259 i915_sw_fence_init(&intel_state
->commit_ready
,
13260 intel_atomic_commit_ready
);
13262 ret
= intel_atomic_prepare_commit(dev
, state
);
13264 DRM_DEBUG_ATOMIC("Preparing state failed with %i\n", ret
);
13265 i915_sw_fence_commit(&intel_state
->commit_ready
);
13270 * The intel_legacy_cursor_update() fast path takes care
13271 * of avoiding the vblank waits for simple cursor
13272 * movement and flips. For cursor on/off and size changes,
13273 * we want to perform the vblank waits so that watermark
13274 * updates happen during the correct frames. Gen9+ have
13275 * double buffered watermarks and so shouldn't need this.
13277 * Do this after drm_atomic_helper_setup_commit() and
13278 * intel_atomic_prepare_commit() because we still want
13279 * to skip the flip and fb cleanup waits. Although that
13280 * does risk yanking the mapping from under the display
13283 * FIXME doing watermarks and fb cleanup from a vblank worker
13284 * (assuming we had any) would solve these problems.
13286 if (INTEL_GEN(dev_priv
) < 9)
13287 state
->legacy_cursor_update
= false;
13289 ret
= drm_atomic_helper_swap_state(state
, true);
13291 i915_sw_fence_commit(&intel_state
->commit_ready
);
13293 mutex_lock(&dev
->struct_mutex
);
13294 drm_atomic_helper_cleanup_planes(dev
, state
);
13295 mutex_unlock(&dev
->struct_mutex
);
13298 dev_priv
->wm
.distrust_bios_wm
= false;
13299 intel_shared_dpll_swap_state(state
);
13300 intel_atomic_track_fbs(state
);
13302 if (intel_state
->modeset
) {
13303 memcpy(dev_priv
->min_pixclk
, intel_state
->min_pixclk
,
13304 sizeof(intel_state
->min_pixclk
));
13305 dev_priv
->active_crtcs
= intel_state
->active_crtcs
;
13306 dev_priv
->cdclk
.logical
= intel_state
->cdclk
.logical
;
13307 dev_priv
->cdclk
.actual
= intel_state
->cdclk
.actual
;
13310 drm_atomic_state_get(state
);
13311 INIT_WORK(&state
->commit_work
,
13312 nonblock
? intel_atomic_commit_work
: NULL
);
13314 i915_sw_fence_commit(&intel_state
->commit_ready
);
13316 i915_sw_fence_wait(&intel_state
->commit_ready
);
13317 intel_atomic_commit_tail(state
);
13323 static const struct drm_crtc_funcs intel_crtc_funcs
= {
13324 .gamma_set
= drm_atomic_helper_legacy_gamma_set
,
13325 .set_config
= drm_atomic_helper_set_config
,
13326 .destroy
= intel_crtc_destroy
,
13327 .page_flip
= drm_atomic_helper_page_flip
,
13328 .atomic_duplicate_state
= intel_crtc_duplicate_state
,
13329 .atomic_destroy_state
= intel_crtc_destroy_state
,
13330 .set_crc_source
= intel_crtc_set_crc_source
,
13334 * intel_prepare_plane_fb - Prepare fb for usage on plane
13335 * @plane: drm plane to prepare for
13336 * @fb: framebuffer to prepare for presentation
13338 * Prepares a framebuffer for usage on a display plane. Generally this
13339 * involves pinning the underlying object and updating the frontbuffer tracking
13340 * bits. Some older platforms need special physical address handling for
13343 * Must be called with struct_mutex held.
13345 * Returns 0 on success, negative error code on failure.
13348 intel_prepare_plane_fb(struct drm_plane
*plane
,
13349 struct drm_plane_state
*new_state
)
13351 struct intel_atomic_state
*intel_state
=
13352 to_intel_atomic_state(new_state
->state
);
13353 struct drm_i915_private
*dev_priv
= to_i915(plane
->dev
);
13354 struct drm_framebuffer
*fb
= new_state
->fb
;
13355 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
13356 struct drm_i915_gem_object
*old_obj
= intel_fb_obj(plane
->state
->fb
);
13360 if (plane
->type
== DRM_PLANE_TYPE_CURSOR
&&
13361 INTEL_INFO(dev_priv
)->cursor_needs_physical
) {
13362 const int align
= intel_cursor_alignment(dev_priv
);
13364 ret
= i915_gem_object_attach_phys(obj
, align
);
13366 DRM_DEBUG_KMS("failed to attach phys object\n");
13370 struct i915_vma
*vma
;
13372 vma
= intel_pin_and_fence_fb_obj(fb
, new_state
->rotation
);
13374 DRM_DEBUG_KMS("failed to pin object\n");
13375 return PTR_ERR(vma
);
13378 to_intel_plane_state(new_state
)->vma
= vma
;
13382 if (!obj
&& !old_obj
)
13386 struct drm_crtc_state
*crtc_state
=
13387 drm_atomic_get_existing_crtc_state(new_state
->state
,
13388 plane
->state
->crtc
);
13390 /* Big Hammer, we also need to ensure that any pending
13391 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
13392 * current scanout is retired before unpinning the old
13393 * framebuffer. Note that we rely on userspace rendering
13394 * into the buffer attached to the pipe they are waiting
13395 * on. If not, userspace generates a GPU hang with IPEHR
13396 * point to the MI_WAIT_FOR_EVENT.
13398 * This should only fail upon a hung GPU, in which case we
13399 * can safely continue.
13401 if (needs_modeset(crtc_state
)) {
13402 ret
= i915_sw_fence_await_reservation(&intel_state
->commit_ready
,
13403 old_obj
->resv
, NULL
,
13411 if (new_state
->fence
) { /* explicit fencing */
13412 ret
= i915_sw_fence_await_dma_fence(&intel_state
->commit_ready
,
13414 I915_FENCE_TIMEOUT
,
13423 if (!new_state
->fence
) { /* implicit fencing */
13424 ret
= i915_sw_fence_await_reservation(&intel_state
->commit_ready
,
13426 false, I915_FENCE_TIMEOUT
,
13431 i915_gem_object_wait_priority(obj
, 0, I915_PRIORITY_DISPLAY
);
13438 * intel_cleanup_plane_fb - Cleans up an fb after plane use
13439 * @plane: drm plane to clean up for
13440 * @fb: old framebuffer that was on plane
13442 * Cleans up a framebuffer that has just been removed from a plane.
13444 * Must be called with struct_mutex held.
13447 intel_cleanup_plane_fb(struct drm_plane
*plane
,
13448 struct drm_plane_state
*old_state
)
13450 struct i915_vma
*vma
;
13452 /* Should only be called after a successful intel_prepare_plane_fb()! */
13453 vma
= fetch_and_zero(&to_intel_plane_state(old_state
)->vma
);
13455 intel_unpin_fb_vma(vma
);
13459 skl_max_scale(struct intel_crtc
*intel_crtc
, struct intel_crtc_state
*crtc_state
)
13461 struct drm_i915_private
*dev_priv
;
13463 int crtc_clock
, max_dotclk
;
13465 if (!intel_crtc
|| !crtc_state
->base
.enable
)
13466 return DRM_PLANE_HELPER_NO_SCALING
;
13468 dev_priv
= to_i915(intel_crtc
->base
.dev
);
13470 crtc_clock
= crtc_state
->base
.adjusted_mode
.crtc_clock
;
13471 max_dotclk
= to_intel_atomic_state(crtc_state
->base
.state
)->cdclk
.logical
.cdclk
;
13473 if (IS_GEMINILAKE(dev_priv
))
13476 if (WARN_ON_ONCE(!crtc_clock
|| max_dotclk
< crtc_clock
))
13477 return DRM_PLANE_HELPER_NO_SCALING
;
13480 * skl max scale is lower of:
13481 * close to 3 but not 3, -1 is for that purpose
13485 max_scale
= min((1 << 16) * 3 - 1,
13486 (1 << 8) * ((max_dotclk
<< 8) / crtc_clock
));
13492 intel_check_primary_plane(struct intel_plane
*plane
,
13493 struct intel_crtc_state
*crtc_state
,
13494 struct intel_plane_state
*state
)
13496 struct drm_i915_private
*dev_priv
= to_i915(plane
->base
.dev
);
13497 struct drm_crtc
*crtc
= state
->base
.crtc
;
13498 int min_scale
= DRM_PLANE_HELPER_NO_SCALING
;
13499 int max_scale
= DRM_PLANE_HELPER_NO_SCALING
;
13500 bool can_position
= false;
13503 if (INTEL_GEN(dev_priv
) >= 9) {
13504 /* use scaler when colorkey is not required */
13505 if (state
->ckey
.flags
== I915_SET_COLORKEY_NONE
) {
13507 max_scale
= skl_max_scale(to_intel_crtc(crtc
), crtc_state
);
13509 can_position
= true;
13512 ret
= drm_plane_helper_check_state(&state
->base
,
13514 min_scale
, max_scale
,
13515 can_position
, true);
13519 if (!state
->base
.fb
)
13522 if (INTEL_GEN(dev_priv
) >= 9) {
13523 ret
= skl_check_plane_surface(state
);
13527 state
->ctl
= skl_plane_ctl(crtc_state
, state
);
13529 ret
= i9xx_check_plane_surface(state
);
13533 state
->ctl
= i9xx_plane_ctl(crtc_state
, state
);
13539 static void intel_begin_crtc_commit(struct drm_crtc
*crtc
,
13540 struct drm_crtc_state
*old_crtc_state
)
13542 struct drm_device
*dev
= crtc
->dev
;
13543 struct drm_i915_private
*dev_priv
= to_i915(dev
);
13544 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
13545 struct intel_crtc_state
*intel_cstate
=
13546 to_intel_crtc_state(crtc
->state
);
13547 struct intel_crtc_state
*old_intel_cstate
=
13548 to_intel_crtc_state(old_crtc_state
);
13549 struct intel_atomic_state
*old_intel_state
=
13550 to_intel_atomic_state(old_crtc_state
->state
);
13551 bool modeset
= needs_modeset(crtc
->state
);
13554 (intel_cstate
->base
.color_mgmt_changed
||
13555 intel_cstate
->update_pipe
)) {
13556 intel_color_set_csc(crtc
->state
);
13557 intel_color_load_luts(crtc
->state
);
13560 /* Perform vblank evasion around commit operation */
13561 intel_pipe_update_start(intel_crtc
);
13566 if (intel_cstate
->update_pipe
)
13567 intel_update_pipe_config(intel_crtc
, old_intel_cstate
);
13568 else if (INTEL_GEN(dev_priv
) >= 9)
13569 skl_detach_scalers(intel_crtc
);
13572 if (dev_priv
->display
.atomic_update_watermarks
)
13573 dev_priv
->display
.atomic_update_watermarks(old_intel_state
,
13577 static void intel_finish_crtc_commit(struct drm_crtc
*crtc
,
13578 struct drm_crtc_state
*old_crtc_state
)
13580 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
13582 intel_pipe_update_end(intel_crtc
, NULL
);
13586 * intel_plane_destroy - destroy a plane
13587 * @plane: plane to destroy
13589 * Common destruction function for all types of planes (primary, cursor,
13592 void intel_plane_destroy(struct drm_plane
*plane
)
13594 drm_plane_cleanup(plane
);
13595 kfree(to_intel_plane(plane
));
13598 const struct drm_plane_funcs intel_plane_funcs
= {
13599 .update_plane
= drm_atomic_helper_update_plane
,
13600 .disable_plane
= drm_atomic_helper_disable_plane
,
13601 .destroy
= intel_plane_destroy
,
13602 .set_property
= drm_atomic_helper_plane_set_property
,
13603 .atomic_get_property
= intel_plane_atomic_get_property
,
13604 .atomic_set_property
= intel_plane_atomic_set_property
,
13605 .atomic_duplicate_state
= intel_plane_duplicate_state
,
13606 .atomic_destroy_state
= intel_plane_destroy_state
,
13610 intel_legacy_cursor_update(struct drm_plane
*plane
,
13611 struct drm_crtc
*crtc
,
13612 struct drm_framebuffer
*fb
,
13613 int crtc_x
, int crtc_y
,
13614 unsigned int crtc_w
, unsigned int crtc_h
,
13615 uint32_t src_x
, uint32_t src_y
,
13616 uint32_t src_w
, uint32_t src_h
,
13617 struct drm_modeset_acquire_ctx
*ctx
)
13619 struct drm_i915_private
*dev_priv
= to_i915(crtc
->dev
);
13621 struct drm_plane_state
*old_plane_state
, *new_plane_state
;
13622 struct intel_plane
*intel_plane
= to_intel_plane(plane
);
13623 struct drm_framebuffer
*old_fb
;
13624 struct drm_crtc_state
*crtc_state
= crtc
->state
;
13625 struct i915_vma
*old_vma
;
13628 * When crtc is inactive or there is a modeset pending,
13629 * wait for it to complete in the slowpath
13631 if (!crtc_state
->active
|| needs_modeset(crtc_state
) ||
13632 to_intel_crtc_state(crtc_state
)->update_pipe
)
13635 old_plane_state
= plane
->state
;
13638 * If any parameters change that may affect watermarks,
13639 * take the slowpath. Only changing fb or position should be
13642 if (old_plane_state
->crtc
!= crtc
||
13643 old_plane_state
->src_w
!= src_w
||
13644 old_plane_state
->src_h
!= src_h
||
13645 old_plane_state
->crtc_w
!= crtc_w
||
13646 old_plane_state
->crtc_h
!= crtc_h
||
13647 !old_plane_state
->fb
!= !fb
)
13650 new_plane_state
= intel_plane_duplicate_state(plane
);
13651 if (!new_plane_state
)
13654 drm_atomic_set_fb_for_plane(new_plane_state
, fb
);
13656 new_plane_state
->src_x
= src_x
;
13657 new_plane_state
->src_y
= src_y
;
13658 new_plane_state
->src_w
= src_w
;
13659 new_plane_state
->src_h
= src_h
;
13660 new_plane_state
->crtc_x
= crtc_x
;
13661 new_plane_state
->crtc_y
= crtc_y
;
13662 new_plane_state
->crtc_w
= crtc_w
;
13663 new_plane_state
->crtc_h
= crtc_h
;
13665 ret
= intel_plane_atomic_check_with_state(to_intel_crtc_state(crtc
->state
),
13666 to_intel_plane_state(new_plane_state
));
13670 ret
= mutex_lock_interruptible(&dev_priv
->drm
.struct_mutex
);
13674 if (INTEL_INFO(dev_priv
)->cursor_needs_physical
) {
13675 int align
= intel_cursor_alignment(dev_priv
);
13677 ret
= i915_gem_object_attach_phys(intel_fb_obj(fb
), align
);
13679 DRM_DEBUG_KMS("failed to attach phys object\n");
13683 struct i915_vma
*vma
;
13685 vma
= intel_pin_and_fence_fb_obj(fb
, new_plane_state
->rotation
);
13687 DRM_DEBUG_KMS("failed to pin object\n");
13689 ret
= PTR_ERR(vma
);
13693 to_intel_plane_state(new_plane_state
)->vma
= vma
;
13696 old_fb
= old_plane_state
->fb
;
13697 old_vma
= to_intel_plane_state(old_plane_state
)->vma
;
13699 i915_gem_track_fb(intel_fb_obj(old_fb
), intel_fb_obj(fb
),
13700 intel_plane
->frontbuffer_bit
);
13702 /* Swap plane state */
13703 new_plane_state
->fence
= old_plane_state
->fence
;
13704 *to_intel_plane_state(old_plane_state
) = *to_intel_plane_state(new_plane_state
);
13705 new_plane_state
->fence
= NULL
;
13706 new_plane_state
->fb
= old_fb
;
13707 to_intel_plane_state(new_plane_state
)->vma
= old_vma
;
13709 if (plane
->state
->visible
) {
13710 trace_intel_update_plane(plane
, to_intel_crtc(crtc
));
13711 intel_plane
->update_plane(intel_plane
,
13712 to_intel_crtc_state(crtc
->state
),
13713 to_intel_plane_state(plane
->state
));
13715 trace_intel_disable_plane(plane
, to_intel_crtc(crtc
));
13716 intel_plane
->disable_plane(intel_plane
, to_intel_crtc(crtc
));
13719 intel_cleanup_plane_fb(plane
, new_plane_state
);
13722 mutex_unlock(&dev_priv
->drm
.struct_mutex
);
13724 intel_plane_destroy_state(plane
, new_plane_state
);
13728 return drm_atomic_helper_update_plane(plane
, crtc
, fb
,
13729 crtc_x
, crtc_y
, crtc_w
, crtc_h
,
13730 src_x
, src_y
, src_w
, src_h
, ctx
);
13733 static const struct drm_plane_funcs intel_cursor_plane_funcs
= {
13734 .update_plane
= intel_legacy_cursor_update
,
13735 .disable_plane
= drm_atomic_helper_disable_plane
,
13736 .destroy
= intel_plane_destroy
,
13737 .set_property
= drm_atomic_helper_plane_set_property
,
13738 .atomic_get_property
= intel_plane_atomic_get_property
,
13739 .atomic_set_property
= intel_plane_atomic_set_property
,
13740 .atomic_duplicate_state
= intel_plane_duplicate_state
,
13741 .atomic_destroy_state
= intel_plane_destroy_state
,
13744 static struct intel_plane
*
13745 intel_primary_plane_create(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
13747 struct intel_plane
*primary
= NULL
;
13748 struct intel_plane_state
*state
= NULL
;
13749 const uint32_t *intel_primary_formats
;
13750 unsigned int supported_rotations
;
13751 unsigned int num_formats
;
13754 primary
= kzalloc(sizeof(*primary
), GFP_KERNEL
);
13760 state
= intel_create_plane_state(&primary
->base
);
13766 primary
->base
.state
= &state
->base
;
13768 primary
->can_scale
= false;
13769 primary
->max_downscale
= 1;
13770 if (INTEL_GEN(dev_priv
) >= 9) {
13771 primary
->can_scale
= true;
13772 state
->scaler_id
= -1;
13774 primary
->pipe
= pipe
;
13776 * On gen2/3 only plane A can do FBC, but the panel fitter and LVDS
13777 * port is hooked to pipe B. Hence we want plane A feeding pipe B.
13779 if (HAS_FBC(dev_priv
) && INTEL_GEN(dev_priv
) < 4)
13780 primary
->plane
= (enum plane
) !pipe
;
13782 primary
->plane
= (enum plane
) pipe
;
13783 primary
->id
= PLANE_PRIMARY
;
13784 primary
->frontbuffer_bit
= INTEL_FRONTBUFFER_PRIMARY(pipe
);
13785 primary
->check_plane
= intel_check_primary_plane
;
13787 if (INTEL_GEN(dev_priv
) >= 9) {
13788 intel_primary_formats
= skl_primary_formats
;
13789 num_formats
= ARRAY_SIZE(skl_primary_formats
);
13791 primary
->update_plane
= skylake_update_primary_plane
;
13792 primary
->disable_plane
= skylake_disable_primary_plane
;
13793 } else if (INTEL_GEN(dev_priv
) >= 4) {
13794 intel_primary_formats
= i965_primary_formats
;
13795 num_formats
= ARRAY_SIZE(i965_primary_formats
);
13797 primary
->update_plane
= i9xx_update_primary_plane
;
13798 primary
->disable_plane
= i9xx_disable_primary_plane
;
13800 intel_primary_formats
= i8xx_primary_formats
;
13801 num_formats
= ARRAY_SIZE(i8xx_primary_formats
);
13803 primary
->update_plane
= i9xx_update_primary_plane
;
13804 primary
->disable_plane
= i9xx_disable_primary_plane
;
13807 if (INTEL_GEN(dev_priv
) >= 9)
13808 ret
= drm_universal_plane_init(&dev_priv
->drm
, &primary
->base
,
13809 0, &intel_plane_funcs
,
13810 intel_primary_formats
, num_formats
,
13812 DRM_PLANE_TYPE_PRIMARY
,
13813 "plane 1%c", pipe_name(pipe
));
13814 else if (INTEL_GEN(dev_priv
) >= 5 || IS_G4X(dev_priv
))
13815 ret
= drm_universal_plane_init(&dev_priv
->drm
, &primary
->base
,
13816 0, &intel_plane_funcs
,
13817 intel_primary_formats
, num_formats
,
13819 DRM_PLANE_TYPE_PRIMARY
,
13820 "primary %c", pipe_name(pipe
));
13822 ret
= drm_universal_plane_init(&dev_priv
->drm
, &primary
->base
,
13823 0, &intel_plane_funcs
,
13824 intel_primary_formats
, num_formats
,
13826 DRM_PLANE_TYPE_PRIMARY
,
13827 "plane %c", plane_name(primary
->plane
));
13831 if (INTEL_GEN(dev_priv
) >= 9) {
13832 supported_rotations
=
13833 DRM_MODE_ROTATE_0
| DRM_MODE_ROTATE_90
|
13834 DRM_MODE_ROTATE_180
| DRM_MODE_ROTATE_270
;
13835 } else if (IS_CHERRYVIEW(dev_priv
) && pipe
== PIPE_B
) {
13836 supported_rotations
=
13837 DRM_MODE_ROTATE_0
| DRM_MODE_ROTATE_180
|
13838 DRM_MODE_REFLECT_X
;
13839 } else if (INTEL_GEN(dev_priv
) >= 4) {
13840 supported_rotations
=
13841 DRM_MODE_ROTATE_0
| DRM_MODE_ROTATE_180
;
13843 supported_rotations
= DRM_MODE_ROTATE_0
;
13846 if (INTEL_GEN(dev_priv
) >= 4)
13847 drm_plane_create_rotation_property(&primary
->base
,
13849 supported_rotations
);
13851 drm_plane_helper_add(&primary
->base
, &intel_plane_helper_funcs
);
13859 return ERR_PTR(ret
);
13862 static struct intel_plane
*
13863 intel_cursor_plane_create(struct drm_i915_private
*dev_priv
,
13866 struct intel_plane
*cursor
= NULL
;
13867 struct intel_plane_state
*state
= NULL
;
13870 cursor
= kzalloc(sizeof(*cursor
), GFP_KERNEL
);
13876 state
= intel_create_plane_state(&cursor
->base
);
13882 cursor
->base
.state
= &state
->base
;
13884 cursor
->can_scale
= false;
13885 cursor
->max_downscale
= 1;
13886 cursor
->pipe
= pipe
;
13887 cursor
->plane
= pipe
;
13888 cursor
->id
= PLANE_CURSOR
;
13889 cursor
->frontbuffer_bit
= INTEL_FRONTBUFFER_CURSOR(pipe
);
13891 if (IS_I845G(dev_priv
) || IS_I865G(dev_priv
)) {
13892 cursor
->update_plane
= i845_update_cursor
;
13893 cursor
->disable_plane
= i845_disable_cursor
;
13894 cursor
->check_plane
= i845_check_cursor
;
13896 cursor
->update_plane
= i9xx_update_cursor
;
13897 cursor
->disable_plane
= i9xx_disable_cursor
;
13898 cursor
->check_plane
= i9xx_check_cursor
;
13901 cursor
->cursor
.base
= ~0;
13902 cursor
->cursor
.cntl
= ~0;
13904 if (IS_I845G(dev_priv
) || IS_I865G(dev_priv
) || HAS_CUR_FBC(dev_priv
))
13905 cursor
->cursor
.size
= ~0;
13907 ret
= drm_universal_plane_init(&dev_priv
->drm
, &cursor
->base
,
13908 0, &intel_cursor_plane_funcs
,
13909 intel_cursor_formats
,
13910 ARRAY_SIZE(intel_cursor_formats
),
13911 NULL
, DRM_PLANE_TYPE_CURSOR
,
13912 "cursor %c", pipe_name(pipe
));
13916 if (INTEL_GEN(dev_priv
) >= 4)
13917 drm_plane_create_rotation_property(&cursor
->base
,
13919 DRM_MODE_ROTATE_0
|
13920 DRM_MODE_ROTATE_180
);
13922 if (INTEL_GEN(dev_priv
) >= 9)
13923 state
->scaler_id
= -1;
13925 drm_plane_helper_add(&cursor
->base
, &intel_plane_helper_funcs
);
13933 return ERR_PTR(ret
);
13936 static void intel_crtc_init_scalers(struct intel_crtc
*crtc
,
13937 struct intel_crtc_state
*crtc_state
)
13939 struct intel_crtc_scaler_state
*scaler_state
=
13940 &crtc_state
->scaler_state
;
13941 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
13944 crtc
->num_scalers
= dev_priv
->info
.num_scalers
[crtc
->pipe
];
13945 if (!crtc
->num_scalers
)
13948 for (i
= 0; i
< crtc
->num_scalers
; i
++) {
13949 struct intel_scaler
*scaler
= &scaler_state
->scalers
[i
];
13951 scaler
->in_use
= 0;
13952 scaler
->mode
= PS_SCALER_MODE_DYN
;
13955 scaler_state
->scaler_id
= -1;
13958 static int intel_crtc_init(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
13960 struct intel_crtc
*intel_crtc
;
13961 struct intel_crtc_state
*crtc_state
= NULL
;
13962 struct intel_plane
*primary
= NULL
;
13963 struct intel_plane
*cursor
= NULL
;
13966 intel_crtc
= kzalloc(sizeof(*intel_crtc
), GFP_KERNEL
);
13970 crtc_state
= kzalloc(sizeof(*crtc_state
), GFP_KERNEL
);
13975 intel_crtc
->config
= crtc_state
;
13976 intel_crtc
->base
.state
= &crtc_state
->base
;
13977 crtc_state
->base
.crtc
= &intel_crtc
->base
;
13979 primary
= intel_primary_plane_create(dev_priv
, pipe
);
13980 if (IS_ERR(primary
)) {
13981 ret
= PTR_ERR(primary
);
13984 intel_crtc
->plane_ids_mask
|= BIT(primary
->id
);
13986 for_each_sprite(dev_priv
, pipe
, sprite
) {
13987 struct intel_plane
*plane
;
13989 plane
= intel_sprite_plane_create(dev_priv
, pipe
, sprite
);
13990 if (IS_ERR(plane
)) {
13991 ret
= PTR_ERR(plane
);
13994 intel_crtc
->plane_ids_mask
|= BIT(plane
->id
);
13997 cursor
= intel_cursor_plane_create(dev_priv
, pipe
);
13998 if (IS_ERR(cursor
)) {
13999 ret
= PTR_ERR(cursor
);
14002 intel_crtc
->plane_ids_mask
|= BIT(cursor
->id
);
14004 ret
= drm_crtc_init_with_planes(&dev_priv
->drm
, &intel_crtc
->base
,
14005 &primary
->base
, &cursor
->base
,
14007 "pipe %c", pipe_name(pipe
));
14011 intel_crtc
->pipe
= pipe
;
14012 intel_crtc
->plane
= primary
->plane
;
14014 /* initialize shared scalers */
14015 intel_crtc_init_scalers(intel_crtc
, crtc_state
);
14017 BUG_ON(pipe
>= ARRAY_SIZE(dev_priv
->plane_to_crtc_mapping
) ||
14018 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] != NULL
);
14019 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] = intel_crtc
;
14020 dev_priv
->pipe_to_crtc_mapping
[intel_crtc
->pipe
] = intel_crtc
;
14022 drm_crtc_helper_add(&intel_crtc
->base
, &intel_helper_funcs
);
14024 intel_color_init(&intel_crtc
->base
);
14026 WARN_ON(drm_crtc_index(&intel_crtc
->base
) != intel_crtc
->pipe
);
14032 * drm_mode_config_cleanup() will free up any
14033 * crtcs/planes already initialized.
14041 enum pipe
intel_get_pipe_from_connector(struct intel_connector
*connector
)
14043 struct drm_device
*dev
= connector
->base
.dev
;
14045 WARN_ON(!drm_modeset_is_locked(&dev
->mode_config
.connection_mutex
));
14047 if (!connector
->base
.state
->crtc
)
14048 return INVALID_PIPE
;
14050 return to_intel_crtc(connector
->base
.state
->crtc
)->pipe
;
14053 int intel_get_pipe_from_crtc_id(struct drm_device
*dev
, void *data
,
14054 struct drm_file
*file
)
14056 struct drm_i915_get_pipe_from_crtc_id
*pipe_from_crtc_id
= data
;
14057 struct drm_crtc
*drmmode_crtc
;
14058 struct intel_crtc
*crtc
;
14060 drmmode_crtc
= drm_crtc_find(dev
, pipe_from_crtc_id
->crtc_id
);
14064 crtc
= to_intel_crtc(drmmode_crtc
);
14065 pipe_from_crtc_id
->pipe
= crtc
->pipe
;
14070 static int intel_encoder_clones(struct intel_encoder
*encoder
)
14072 struct drm_device
*dev
= encoder
->base
.dev
;
14073 struct intel_encoder
*source_encoder
;
14074 int index_mask
= 0;
14077 for_each_intel_encoder(dev
, source_encoder
) {
14078 if (encoders_cloneable(encoder
, source_encoder
))
14079 index_mask
|= (1 << entry
);
14087 static bool has_edp_a(struct drm_i915_private
*dev_priv
)
14089 if (!IS_MOBILE(dev_priv
))
14092 if ((I915_READ(DP_A
) & DP_DETECTED
) == 0)
14095 if (IS_GEN5(dev_priv
) && (I915_READ(FUSE_STRAP
) & ILK_eDP_A_DISABLE
))
14101 static bool intel_crt_present(struct drm_i915_private
*dev_priv
)
14103 if (INTEL_GEN(dev_priv
) >= 9)
14106 if (IS_HSW_ULT(dev_priv
) || IS_BDW_ULT(dev_priv
))
14109 if (IS_CHERRYVIEW(dev_priv
))
14112 if (HAS_PCH_LPT_H(dev_priv
) &&
14113 I915_READ(SFUSE_STRAP
) & SFUSE_STRAP_CRT_DISABLED
)
14116 /* DDI E can't be used if DDI A requires 4 lanes */
14117 if (HAS_DDI(dev_priv
) && I915_READ(DDI_BUF_CTL(PORT_A
)) & DDI_A_4_LANES
)
14120 if (!dev_priv
->vbt
.int_crt_support
)
14126 void intel_pps_unlock_regs_wa(struct drm_i915_private
*dev_priv
)
14131 if (HAS_DDI(dev_priv
))
14134 * This w/a is needed at least on CPT/PPT, but to be sure apply it
14135 * everywhere where registers can be write protected.
14137 if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
14142 for (pps_idx
= 0; pps_idx
< pps_num
; pps_idx
++) {
14143 u32 val
= I915_READ(PP_CONTROL(pps_idx
));
14145 val
= (val
& ~PANEL_UNLOCK_MASK
) | PANEL_UNLOCK_REGS
;
14146 I915_WRITE(PP_CONTROL(pps_idx
), val
);
14150 static void intel_pps_init(struct drm_i915_private
*dev_priv
)
14152 if (HAS_PCH_SPLIT(dev_priv
) || IS_GEN9_LP(dev_priv
))
14153 dev_priv
->pps_mmio_base
= PCH_PPS_BASE
;
14154 else if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
14155 dev_priv
->pps_mmio_base
= VLV_PPS_BASE
;
14157 dev_priv
->pps_mmio_base
= PPS_BASE
;
14159 intel_pps_unlock_regs_wa(dev_priv
);
14162 static void intel_setup_outputs(struct drm_i915_private
*dev_priv
)
14164 struct intel_encoder
*encoder
;
14165 bool dpd_is_edp
= false;
14167 intel_pps_init(dev_priv
);
14170 * intel_edp_init_connector() depends on this completing first, to
14171 * prevent the registeration of both eDP and LVDS and the incorrect
14172 * sharing of the PPS.
14174 intel_lvds_init(dev_priv
);
14176 if (intel_crt_present(dev_priv
))
14177 intel_crt_init(dev_priv
);
14179 if (IS_GEN9_LP(dev_priv
)) {
14181 * FIXME: Broxton doesn't support port detection via the
14182 * DDI_BUF_CTL_A or SFUSE_STRAP registers, find another way to
14183 * detect the ports.
14185 intel_ddi_init(dev_priv
, PORT_A
);
14186 intel_ddi_init(dev_priv
, PORT_B
);
14187 intel_ddi_init(dev_priv
, PORT_C
);
14189 intel_dsi_init(dev_priv
);
14190 } else if (HAS_DDI(dev_priv
)) {
14194 * Haswell uses DDI functions to detect digital outputs.
14195 * On SKL pre-D0 the strap isn't connected, so we assume
14198 found
= I915_READ(DDI_BUF_CTL(PORT_A
)) & DDI_INIT_DISPLAY_DETECTED
;
14199 /* WaIgnoreDDIAStrap: skl */
14200 if (found
|| IS_GEN9_BC(dev_priv
))
14201 intel_ddi_init(dev_priv
, PORT_A
);
14203 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
14205 found
= I915_READ(SFUSE_STRAP
);
14207 if (found
& SFUSE_STRAP_DDIB_DETECTED
)
14208 intel_ddi_init(dev_priv
, PORT_B
);
14209 if (found
& SFUSE_STRAP_DDIC_DETECTED
)
14210 intel_ddi_init(dev_priv
, PORT_C
);
14211 if (found
& SFUSE_STRAP_DDID_DETECTED
)
14212 intel_ddi_init(dev_priv
, PORT_D
);
14214 * On SKL we don't have a way to detect DDI-E so we rely on VBT.
14216 if (IS_GEN9_BC(dev_priv
) &&
14217 (dev_priv
->vbt
.ddi_port_info
[PORT_E
].supports_dp
||
14218 dev_priv
->vbt
.ddi_port_info
[PORT_E
].supports_dvi
||
14219 dev_priv
->vbt
.ddi_port_info
[PORT_E
].supports_hdmi
))
14220 intel_ddi_init(dev_priv
, PORT_E
);
14222 } else if (HAS_PCH_SPLIT(dev_priv
)) {
14224 dpd_is_edp
= intel_dp_is_edp(dev_priv
, PORT_D
);
14226 if (has_edp_a(dev_priv
))
14227 intel_dp_init(dev_priv
, DP_A
, PORT_A
);
14229 if (I915_READ(PCH_HDMIB
) & SDVO_DETECTED
) {
14230 /* PCH SDVOB multiplex with HDMIB */
14231 found
= intel_sdvo_init(dev_priv
, PCH_SDVOB
, PORT_B
);
14233 intel_hdmi_init(dev_priv
, PCH_HDMIB
, PORT_B
);
14234 if (!found
&& (I915_READ(PCH_DP_B
) & DP_DETECTED
))
14235 intel_dp_init(dev_priv
, PCH_DP_B
, PORT_B
);
14238 if (I915_READ(PCH_HDMIC
) & SDVO_DETECTED
)
14239 intel_hdmi_init(dev_priv
, PCH_HDMIC
, PORT_C
);
14241 if (!dpd_is_edp
&& I915_READ(PCH_HDMID
) & SDVO_DETECTED
)
14242 intel_hdmi_init(dev_priv
, PCH_HDMID
, PORT_D
);
14244 if (I915_READ(PCH_DP_C
) & DP_DETECTED
)
14245 intel_dp_init(dev_priv
, PCH_DP_C
, PORT_C
);
14247 if (I915_READ(PCH_DP_D
) & DP_DETECTED
)
14248 intel_dp_init(dev_priv
, PCH_DP_D
, PORT_D
);
14249 } else if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) {
14250 bool has_edp
, has_port
;
14253 * The DP_DETECTED bit is the latched state of the DDC
14254 * SDA pin at boot. However since eDP doesn't require DDC
14255 * (no way to plug in a DP->HDMI dongle) the DDC pins for
14256 * eDP ports may have been muxed to an alternate function.
14257 * Thus we can't rely on the DP_DETECTED bit alone to detect
14258 * eDP ports. Consult the VBT as well as DP_DETECTED to
14259 * detect eDP ports.
14261 * Sadly the straps seem to be missing sometimes even for HDMI
14262 * ports (eg. on Voyo V3 - CHT x7-Z8700), so check both strap
14263 * and VBT for the presence of the port. Additionally we can't
14264 * trust the port type the VBT declares as we've seen at least
14265 * HDMI ports that the VBT claim are DP or eDP.
14267 has_edp
= intel_dp_is_edp(dev_priv
, PORT_B
);
14268 has_port
= intel_bios_is_port_present(dev_priv
, PORT_B
);
14269 if (I915_READ(VLV_DP_B
) & DP_DETECTED
|| has_port
)
14270 has_edp
&= intel_dp_init(dev_priv
, VLV_DP_B
, PORT_B
);
14271 if ((I915_READ(VLV_HDMIB
) & SDVO_DETECTED
|| has_port
) && !has_edp
)
14272 intel_hdmi_init(dev_priv
, VLV_HDMIB
, PORT_B
);
14274 has_edp
= intel_dp_is_edp(dev_priv
, PORT_C
);
14275 has_port
= intel_bios_is_port_present(dev_priv
, PORT_C
);
14276 if (I915_READ(VLV_DP_C
) & DP_DETECTED
|| has_port
)
14277 has_edp
&= intel_dp_init(dev_priv
, VLV_DP_C
, PORT_C
);
14278 if ((I915_READ(VLV_HDMIC
) & SDVO_DETECTED
|| has_port
) && !has_edp
)
14279 intel_hdmi_init(dev_priv
, VLV_HDMIC
, PORT_C
);
14281 if (IS_CHERRYVIEW(dev_priv
)) {
14283 * eDP not supported on port D,
14284 * so no need to worry about it
14286 has_port
= intel_bios_is_port_present(dev_priv
, PORT_D
);
14287 if (I915_READ(CHV_DP_D
) & DP_DETECTED
|| has_port
)
14288 intel_dp_init(dev_priv
, CHV_DP_D
, PORT_D
);
14289 if (I915_READ(CHV_HDMID
) & SDVO_DETECTED
|| has_port
)
14290 intel_hdmi_init(dev_priv
, CHV_HDMID
, PORT_D
);
14293 intel_dsi_init(dev_priv
);
14294 } else if (!IS_GEN2(dev_priv
) && !IS_PINEVIEW(dev_priv
)) {
14295 bool found
= false;
14297 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
14298 DRM_DEBUG_KMS("probing SDVOB\n");
14299 found
= intel_sdvo_init(dev_priv
, GEN3_SDVOB
, PORT_B
);
14300 if (!found
&& IS_G4X(dev_priv
)) {
14301 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
14302 intel_hdmi_init(dev_priv
, GEN4_HDMIB
, PORT_B
);
14305 if (!found
&& IS_G4X(dev_priv
))
14306 intel_dp_init(dev_priv
, DP_B
, PORT_B
);
14309 /* Before G4X SDVOC doesn't have its own detect register */
14311 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
14312 DRM_DEBUG_KMS("probing SDVOC\n");
14313 found
= intel_sdvo_init(dev_priv
, GEN3_SDVOC
, PORT_C
);
14316 if (!found
&& (I915_READ(GEN3_SDVOC
) & SDVO_DETECTED
)) {
14318 if (IS_G4X(dev_priv
)) {
14319 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
14320 intel_hdmi_init(dev_priv
, GEN4_HDMIC
, PORT_C
);
14322 if (IS_G4X(dev_priv
))
14323 intel_dp_init(dev_priv
, DP_C
, PORT_C
);
14326 if (IS_G4X(dev_priv
) && (I915_READ(DP_D
) & DP_DETECTED
))
14327 intel_dp_init(dev_priv
, DP_D
, PORT_D
);
14328 } else if (IS_GEN2(dev_priv
))
14329 intel_dvo_init(dev_priv
);
14331 if (SUPPORTS_TV(dev_priv
))
14332 intel_tv_init(dev_priv
);
14334 intel_psr_init(dev_priv
);
14336 for_each_intel_encoder(&dev_priv
->drm
, encoder
) {
14337 encoder
->base
.possible_crtcs
= encoder
->crtc_mask
;
14338 encoder
->base
.possible_clones
=
14339 intel_encoder_clones(encoder
);
14342 intel_init_pch_refclk(dev_priv
);
14344 drm_helper_move_panel_connectors_to_head(&dev_priv
->drm
);
14347 static void intel_user_framebuffer_destroy(struct drm_framebuffer
*fb
)
14349 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
14351 drm_framebuffer_cleanup(fb
);
14353 i915_gem_object_lock(intel_fb
->obj
);
14354 WARN_ON(!intel_fb
->obj
->framebuffer_references
--);
14355 i915_gem_object_unlock(intel_fb
->obj
);
14357 i915_gem_object_put(intel_fb
->obj
);
14362 static int intel_user_framebuffer_create_handle(struct drm_framebuffer
*fb
,
14363 struct drm_file
*file
,
14364 unsigned int *handle
)
14366 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
14367 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
14369 if (obj
->userptr
.mm
) {
14370 DRM_DEBUG("attempting to use a userptr for a framebuffer, denied\n");
14374 return drm_gem_handle_create(file
, &obj
->base
, handle
);
14377 static int intel_user_framebuffer_dirty(struct drm_framebuffer
*fb
,
14378 struct drm_file
*file
,
14379 unsigned flags
, unsigned color
,
14380 struct drm_clip_rect
*clips
,
14381 unsigned num_clips
)
14383 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
14385 i915_gem_object_flush_if_display(obj
);
14386 intel_fb_obj_flush(obj
, ORIGIN_DIRTYFB
);
14391 static const struct drm_framebuffer_funcs intel_fb_funcs
= {
14392 .destroy
= intel_user_framebuffer_destroy
,
14393 .create_handle
= intel_user_framebuffer_create_handle
,
14394 .dirty
= intel_user_framebuffer_dirty
,
14398 u32
intel_fb_pitch_limit(struct drm_i915_private
*dev_priv
,
14399 uint64_t fb_modifier
, uint32_t pixel_format
)
14401 u32 gen
= INTEL_GEN(dev_priv
);
14404 int cpp
= drm_format_plane_cpp(pixel_format
, 0);
14406 /* "The stride in bytes must not exceed the of the size of 8K
14407 * pixels and 32K bytes."
14409 return min(8192 * cpp
, 32768);
14410 } else if (gen
>= 5 && !HAS_GMCH_DISPLAY(dev_priv
)) {
14412 } else if (gen
>= 4) {
14413 if (fb_modifier
== I915_FORMAT_MOD_X_TILED
)
14417 } else if (gen
>= 3) {
14418 if (fb_modifier
== I915_FORMAT_MOD_X_TILED
)
14423 /* XXX DSPC is limited to 4k tiled */
14428 static int intel_framebuffer_init(struct intel_framebuffer
*intel_fb
,
14429 struct drm_i915_gem_object
*obj
,
14430 struct drm_mode_fb_cmd2
*mode_cmd
)
14432 struct drm_i915_private
*dev_priv
= to_i915(obj
->base
.dev
);
14433 struct drm_format_name_buf format_name
;
14434 u32 pitch_limit
, stride_alignment
;
14435 unsigned int tiling
, stride
;
14438 i915_gem_object_lock(obj
);
14439 obj
->framebuffer_references
++;
14440 tiling
= i915_gem_object_get_tiling(obj
);
14441 stride
= i915_gem_object_get_stride(obj
);
14442 i915_gem_object_unlock(obj
);
14444 if (mode_cmd
->flags
& DRM_MODE_FB_MODIFIERS
) {
14446 * If there's a fence, enforce that
14447 * the fb modifier and tiling mode match.
14449 if (tiling
!= I915_TILING_NONE
&&
14450 tiling
!= intel_fb_modifier_to_tiling(mode_cmd
->modifier
[0])) {
14451 DRM_DEBUG_KMS("tiling_mode doesn't match fb modifier\n");
14455 if (tiling
== I915_TILING_X
) {
14456 mode_cmd
->modifier
[0] = I915_FORMAT_MOD_X_TILED
;
14457 } else if (tiling
== I915_TILING_Y
) {
14458 DRM_DEBUG_KMS("No Y tiling for legacy addfb\n");
14463 /* Passed in modifier sanity checking. */
14464 switch (mode_cmd
->modifier
[0]) {
14465 case I915_FORMAT_MOD_Y_TILED
:
14466 case I915_FORMAT_MOD_Yf_TILED
:
14467 if (INTEL_GEN(dev_priv
) < 9) {
14468 DRM_DEBUG_KMS("Unsupported tiling 0x%llx!\n",
14469 mode_cmd
->modifier
[0]);
14472 case DRM_FORMAT_MOD_LINEAR
:
14473 case I915_FORMAT_MOD_X_TILED
:
14476 DRM_DEBUG_KMS("Unsupported fb modifier 0x%llx!\n",
14477 mode_cmd
->modifier
[0]);
14482 * gen2/3 display engine uses the fence if present,
14483 * so the tiling mode must match the fb modifier exactly.
14485 if (INTEL_INFO(dev_priv
)->gen
< 4 &&
14486 tiling
!= intel_fb_modifier_to_tiling(mode_cmd
->modifier
[0])) {
14487 DRM_DEBUG_KMS("tiling_mode must match fb modifier exactly on gen2/3\n");
14491 pitch_limit
= intel_fb_pitch_limit(dev_priv
, mode_cmd
->modifier
[0],
14492 mode_cmd
->pixel_format
);
14493 if (mode_cmd
->pitches
[0] > pitch_limit
) {
14494 DRM_DEBUG_KMS("%s pitch (%u) must be at most %d\n",
14495 mode_cmd
->modifier
[0] != DRM_FORMAT_MOD_LINEAR
?
14496 "tiled" : "linear",
14497 mode_cmd
->pitches
[0], pitch_limit
);
14502 * If there's a fence, enforce that
14503 * the fb pitch and fence stride match.
14505 if (tiling
!= I915_TILING_NONE
&& mode_cmd
->pitches
[0] != stride
) {
14506 DRM_DEBUG_KMS("pitch (%d) must match tiling stride (%d)\n",
14507 mode_cmd
->pitches
[0], stride
);
14511 /* Reject formats not supported by any plane early. */
14512 switch (mode_cmd
->pixel_format
) {
14513 case DRM_FORMAT_C8
:
14514 case DRM_FORMAT_RGB565
:
14515 case DRM_FORMAT_XRGB8888
:
14516 case DRM_FORMAT_ARGB8888
:
14518 case DRM_FORMAT_XRGB1555
:
14519 if (INTEL_GEN(dev_priv
) > 3) {
14520 DRM_DEBUG_KMS("unsupported pixel format: %s\n",
14521 drm_get_format_name(mode_cmd
->pixel_format
, &format_name
));
14525 case DRM_FORMAT_ABGR8888
:
14526 if (!IS_VALLEYVIEW(dev_priv
) && !IS_CHERRYVIEW(dev_priv
) &&
14527 INTEL_GEN(dev_priv
) < 9) {
14528 DRM_DEBUG_KMS("unsupported pixel format: %s\n",
14529 drm_get_format_name(mode_cmd
->pixel_format
, &format_name
));
14533 case DRM_FORMAT_XBGR8888
:
14534 case DRM_FORMAT_XRGB2101010
:
14535 case DRM_FORMAT_XBGR2101010
:
14536 if (INTEL_GEN(dev_priv
) < 4) {
14537 DRM_DEBUG_KMS("unsupported pixel format: %s\n",
14538 drm_get_format_name(mode_cmd
->pixel_format
, &format_name
));
14542 case DRM_FORMAT_ABGR2101010
:
14543 if (!IS_VALLEYVIEW(dev_priv
) && !IS_CHERRYVIEW(dev_priv
)) {
14544 DRM_DEBUG_KMS("unsupported pixel format: %s\n",
14545 drm_get_format_name(mode_cmd
->pixel_format
, &format_name
));
14549 case DRM_FORMAT_YUYV
:
14550 case DRM_FORMAT_UYVY
:
14551 case DRM_FORMAT_YVYU
:
14552 case DRM_FORMAT_VYUY
:
14553 if (INTEL_GEN(dev_priv
) < 5 && !IS_G4X(dev_priv
)) {
14554 DRM_DEBUG_KMS("unsupported pixel format: %s\n",
14555 drm_get_format_name(mode_cmd
->pixel_format
, &format_name
));
14560 DRM_DEBUG_KMS("unsupported pixel format: %s\n",
14561 drm_get_format_name(mode_cmd
->pixel_format
, &format_name
));
14565 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
14566 if (mode_cmd
->offsets
[0] != 0)
14569 drm_helper_mode_fill_fb_struct(&dev_priv
->drm
,
14570 &intel_fb
->base
, mode_cmd
);
14572 stride_alignment
= intel_fb_stride_alignment(&intel_fb
->base
, 0);
14573 if (mode_cmd
->pitches
[0] & (stride_alignment
- 1)) {
14574 DRM_DEBUG_KMS("pitch (%d) must be at least %u byte aligned\n",
14575 mode_cmd
->pitches
[0], stride_alignment
);
14579 intel_fb
->obj
= obj
;
14581 ret
= intel_fill_fb_info(dev_priv
, &intel_fb
->base
);
14585 ret
= drm_framebuffer_init(obj
->base
.dev
,
14589 DRM_ERROR("framebuffer init failed %d\n", ret
);
14596 i915_gem_object_lock(obj
);
14597 obj
->framebuffer_references
--;
14598 i915_gem_object_unlock(obj
);
14602 static struct drm_framebuffer
*
14603 intel_user_framebuffer_create(struct drm_device
*dev
,
14604 struct drm_file
*filp
,
14605 const struct drm_mode_fb_cmd2
*user_mode_cmd
)
14607 struct drm_framebuffer
*fb
;
14608 struct drm_i915_gem_object
*obj
;
14609 struct drm_mode_fb_cmd2 mode_cmd
= *user_mode_cmd
;
14611 obj
= i915_gem_object_lookup(filp
, mode_cmd
.handles
[0]);
14613 return ERR_PTR(-ENOENT
);
14615 fb
= intel_framebuffer_create(obj
, &mode_cmd
);
14617 i915_gem_object_put(obj
);
14622 static void intel_atomic_state_free(struct drm_atomic_state
*state
)
14624 struct intel_atomic_state
*intel_state
= to_intel_atomic_state(state
);
14626 drm_atomic_state_default_release(state
);
14628 i915_sw_fence_fini(&intel_state
->commit_ready
);
14633 static const struct drm_mode_config_funcs intel_mode_funcs
= {
14634 .fb_create
= intel_user_framebuffer_create
,
14635 .output_poll_changed
= intel_fbdev_output_poll_changed
,
14636 .atomic_check
= intel_atomic_check
,
14637 .atomic_commit
= intel_atomic_commit
,
14638 .atomic_state_alloc
= intel_atomic_state_alloc
,
14639 .atomic_state_clear
= intel_atomic_state_clear
,
14640 .atomic_state_free
= intel_atomic_state_free
,
14644 * intel_init_display_hooks - initialize the display modesetting hooks
14645 * @dev_priv: device private
14647 void intel_init_display_hooks(struct drm_i915_private
*dev_priv
)
14649 intel_init_cdclk_hooks(dev_priv
);
14651 if (INTEL_INFO(dev_priv
)->gen
>= 9) {
14652 dev_priv
->display
.get_pipe_config
= haswell_get_pipe_config
;
14653 dev_priv
->display
.get_initial_plane_config
=
14654 skylake_get_initial_plane_config
;
14655 dev_priv
->display
.crtc_compute_clock
=
14656 haswell_crtc_compute_clock
;
14657 dev_priv
->display
.crtc_enable
= haswell_crtc_enable
;
14658 dev_priv
->display
.crtc_disable
= haswell_crtc_disable
;
14659 } else if (HAS_DDI(dev_priv
)) {
14660 dev_priv
->display
.get_pipe_config
= haswell_get_pipe_config
;
14661 dev_priv
->display
.get_initial_plane_config
=
14662 ironlake_get_initial_plane_config
;
14663 dev_priv
->display
.crtc_compute_clock
=
14664 haswell_crtc_compute_clock
;
14665 dev_priv
->display
.crtc_enable
= haswell_crtc_enable
;
14666 dev_priv
->display
.crtc_disable
= haswell_crtc_disable
;
14667 } else if (HAS_PCH_SPLIT(dev_priv
)) {
14668 dev_priv
->display
.get_pipe_config
= ironlake_get_pipe_config
;
14669 dev_priv
->display
.get_initial_plane_config
=
14670 ironlake_get_initial_plane_config
;
14671 dev_priv
->display
.crtc_compute_clock
=
14672 ironlake_crtc_compute_clock
;
14673 dev_priv
->display
.crtc_enable
= ironlake_crtc_enable
;
14674 dev_priv
->display
.crtc_disable
= ironlake_crtc_disable
;
14675 } else if (IS_CHERRYVIEW(dev_priv
)) {
14676 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
14677 dev_priv
->display
.get_initial_plane_config
=
14678 i9xx_get_initial_plane_config
;
14679 dev_priv
->display
.crtc_compute_clock
= chv_crtc_compute_clock
;
14680 dev_priv
->display
.crtc_enable
= valleyview_crtc_enable
;
14681 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
14682 } else if (IS_VALLEYVIEW(dev_priv
)) {
14683 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
14684 dev_priv
->display
.get_initial_plane_config
=
14685 i9xx_get_initial_plane_config
;
14686 dev_priv
->display
.crtc_compute_clock
= vlv_crtc_compute_clock
;
14687 dev_priv
->display
.crtc_enable
= valleyview_crtc_enable
;
14688 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
14689 } else if (IS_G4X(dev_priv
)) {
14690 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
14691 dev_priv
->display
.get_initial_plane_config
=
14692 i9xx_get_initial_plane_config
;
14693 dev_priv
->display
.crtc_compute_clock
= g4x_crtc_compute_clock
;
14694 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
14695 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
14696 } else if (IS_PINEVIEW(dev_priv
)) {
14697 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
14698 dev_priv
->display
.get_initial_plane_config
=
14699 i9xx_get_initial_plane_config
;
14700 dev_priv
->display
.crtc_compute_clock
= pnv_crtc_compute_clock
;
14701 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
14702 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
14703 } else if (!IS_GEN2(dev_priv
)) {
14704 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
14705 dev_priv
->display
.get_initial_plane_config
=
14706 i9xx_get_initial_plane_config
;
14707 dev_priv
->display
.crtc_compute_clock
= i9xx_crtc_compute_clock
;
14708 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
14709 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
14711 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
14712 dev_priv
->display
.get_initial_plane_config
=
14713 i9xx_get_initial_plane_config
;
14714 dev_priv
->display
.crtc_compute_clock
= i8xx_crtc_compute_clock
;
14715 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
14716 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
14719 if (IS_GEN5(dev_priv
)) {
14720 dev_priv
->display
.fdi_link_train
= ironlake_fdi_link_train
;
14721 } else if (IS_GEN6(dev_priv
)) {
14722 dev_priv
->display
.fdi_link_train
= gen6_fdi_link_train
;
14723 } else if (IS_IVYBRIDGE(dev_priv
)) {
14724 /* FIXME: detect B0+ stepping and use auto training */
14725 dev_priv
->display
.fdi_link_train
= ivb_manual_fdi_link_train
;
14726 } else if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
)) {
14727 dev_priv
->display
.fdi_link_train
= hsw_fdi_link_train
;
14730 if (dev_priv
->info
.gen
>= 9)
14731 dev_priv
->display
.update_crtcs
= skl_update_crtcs
;
14733 dev_priv
->display
.update_crtcs
= intel_update_crtcs
;
14735 switch (INTEL_INFO(dev_priv
)->gen
) {
14737 dev_priv
->display
.queue_flip
= intel_gen2_queue_flip
;
14741 dev_priv
->display
.queue_flip
= intel_gen3_queue_flip
;
14746 dev_priv
->display
.queue_flip
= intel_gen4_queue_flip
;
14750 dev_priv
->display
.queue_flip
= intel_gen6_queue_flip
;
14753 case 8: /* FIXME(BDW): Check that the gen8 RCS flip works. */
14754 dev_priv
->display
.queue_flip
= intel_gen7_queue_flip
;
14757 /* Drop through - unsupported since execlist only. */
14759 /* Default just returns -ENODEV to indicate unsupported */
14760 dev_priv
->display
.queue_flip
= intel_default_queue_flip
;
14765 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
14767 static void quirk_ssc_force_disable(struct drm_device
*dev
)
14769 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14770 dev_priv
->quirks
|= QUIRK_LVDS_SSC_DISABLE
;
14771 DRM_INFO("applying lvds SSC disable quirk\n");
14775 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
14778 static void quirk_invert_brightness(struct drm_device
*dev
)
14780 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14781 dev_priv
->quirks
|= QUIRK_INVERT_BRIGHTNESS
;
14782 DRM_INFO("applying inverted panel brightness quirk\n");
14785 /* Some VBT's incorrectly indicate no backlight is present */
14786 static void quirk_backlight_present(struct drm_device
*dev
)
14788 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14789 dev_priv
->quirks
|= QUIRK_BACKLIGHT_PRESENT
;
14790 DRM_INFO("applying backlight present quirk\n");
14793 /* Toshiba Satellite P50-C-18C requires T12 delay to be min 800ms
14794 * which is 300 ms greater than eDP spec T12 min.
14796 static void quirk_increase_t12_delay(struct drm_device
*dev
)
14798 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14800 dev_priv
->quirks
|= QUIRK_INCREASE_T12_DELAY
;
14801 DRM_INFO("Applying T12 delay quirk\n");
14804 struct intel_quirk
{
14806 int subsystem_vendor
;
14807 int subsystem_device
;
14808 void (*hook
)(struct drm_device
*dev
);
14811 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
14812 struct intel_dmi_quirk
{
14813 void (*hook
)(struct drm_device
*dev
);
14814 const struct dmi_system_id (*dmi_id_list
)[];
14817 static int intel_dmi_reverse_brightness(const struct dmi_system_id
*id
)
14819 DRM_INFO("Backlight polarity reversed on %s\n", id
->ident
);
14823 static const struct intel_dmi_quirk intel_dmi_quirks
[] = {
14825 .dmi_id_list
= &(const struct dmi_system_id
[]) {
14827 .callback
= intel_dmi_reverse_brightness
,
14828 .ident
= "NCR Corporation",
14829 .matches
= {DMI_MATCH(DMI_SYS_VENDOR
, "NCR Corporation"),
14830 DMI_MATCH(DMI_PRODUCT_NAME
, ""),
14833 { } /* terminating entry */
14835 .hook
= quirk_invert_brightness
,
14839 static struct intel_quirk intel_quirks
[] = {
14840 /* Lenovo U160 cannot use SSC on LVDS */
14841 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable
},
14843 /* Sony Vaio Y cannot use SSC on LVDS */
14844 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable
},
14846 /* Acer Aspire 5734Z must invert backlight brightness */
14847 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness
},
14849 /* Acer/eMachines G725 */
14850 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness
},
14852 /* Acer/eMachines e725 */
14853 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness
},
14855 /* Acer/Packard Bell NCL20 */
14856 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness
},
14858 /* Acer Aspire 4736Z */
14859 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness
},
14861 /* Acer Aspire 5336 */
14862 { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness
},
14864 /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */
14865 { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present
},
14867 /* Acer C720 Chromebook (Core i3 4005U) */
14868 { 0x0a16, 0x1025, 0x0a11, quirk_backlight_present
},
14870 /* Apple Macbook 2,1 (Core 2 T7400) */
14871 { 0x27a2, 0x8086, 0x7270, quirk_backlight_present
},
14873 /* Apple Macbook 4,1 */
14874 { 0x2a02, 0x106b, 0x00a1, quirk_backlight_present
},
14876 /* Toshiba CB35 Chromebook (Celeron 2955U) */
14877 { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present
},
14879 /* HP Chromebook 14 (Celeron 2955U) */
14880 { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present
},
14882 /* Dell Chromebook 11 */
14883 { 0x0a06, 0x1028, 0x0a35, quirk_backlight_present
},
14885 /* Dell Chromebook 11 (2015 version) */
14886 { 0x0a16, 0x1028, 0x0a35, quirk_backlight_present
},
14888 /* Toshiba Satellite P50-C-18C */
14889 { 0x191B, 0x1179, 0xF840, quirk_increase_t12_delay
},
14892 static void intel_init_quirks(struct drm_device
*dev
)
14894 struct pci_dev
*d
= dev
->pdev
;
14897 for (i
= 0; i
< ARRAY_SIZE(intel_quirks
); i
++) {
14898 struct intel_quirk
*q
= &intel_quirks
[i
];
14900 if (d
->device
== q
->device
&&
14901 (d
->subsystem_vendor
== q
->subsystem_vendor
||
14902 q
->subsystem_vendor
== PCI_ANY_ID
) &&
14903 (d
->subsystem_device
== q
->subsystem_device
||
14904 q
->subsystem_device
== PCI_ANY_ID
))
14907 for (i
= 0; i
< ARRAY_SIZE(intel_dmi_quirks
); i
++) {
14908 if (dmi_check_system(*intel_dmi_quirks
[i
].dmi_id_list
) != 0)
14909 intel_dmi_quirks
[i
].hook(dev
);
14913 /* Disable the VGA plane that we never use */
14914 static void i915_disable_vga(struct drm_i915_private
*dev_priv
)
14916 struct pci_dev
*pdev
= dev_priv
->drm
.pdev
;
14918 i915_reg_t vga_reg
= i915_vgacntrl_reg(dev_priv
);
14920 /* WaEnableVGAAccessThroughIOPort:ctg,elk,ilk,snb,ivb,vlv,hsw */
14921 vga_get_uninterruptible(pdev
, VGA_RSRC_LEGACY_IO
);
14922 outb(SR01
, VGA_SR_INDEX
);
14923 sr1
= inb(VGA_SR_DATA
);
14924 outb(sr1
| 1<<5, VGA_SR_DATA
);
14925 vga_put(pdev
, VGA_RSRC_LEGACY_IO
);
14928 I915_WRITE(vga_reg
, VGA_DISP_DISABLE
);
14929 POSTING_READ(vga_reg
);
14932 void intel_modeset_init_hw(struct drm_device
*dev
)
14934 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14936 intel_update_cdclk(dev_priv
);
14937 dev_priv
->cdclk
.logical
= dev_priv
->cdclk
.actual
= dev_priv
->cdclk
.hw
;
14939 intel_init_clock_gating(dev_priv
);
14943 * Calculate what we think the watermarks should be for the state we've read
14944 * out of the hardware and then immediately program those watermarks so that
14945 * we ensure the hardware settings match our internal state.
14947 * We can calculate what we think WM's should be by creating a duplicate of the
14948 * current state (which was constructed during hardware readout) and running it
14949 * through the atomic check code to calculate new watermark values in the
14952 static void sanitize_watermarks(struct drm_device
*dev
)
14954 struct drm_i915_private
*dev_priv
= to_i915(dev
);
14955 struct drm_atomic_state
*state
;
14956 struct intel_atomic_state
*intel_state
;
14957 struct drm_crtc
*crtc
;
14958 struct drm_crtc_state
*cstate
;
14959 struct drm_modeset_acquire_ctx ctx
;
14963 /* Only supported on platforms that use atomic watermark design */
14964 if (!dev_priv
->display
.optimize_watermarks
)
14968 * We need to hold connection_mutex before calling duplicate_state so
14969 * that the connector loop is protected.
14971 drm_modeset_acquire_init(&ctx
, 0);
14973 ret
= drm_modeset_lock_all_ctx(dev
, &ctx
);
14974 if (ret
== -EDEADLK
) {
14975 drm_modeset_backoff(&ctx
);
14977 } else if (WARN_ON(ret
)) {
14981 state
= drm_atomic_helper_duplicate_state(dev
, &ctx
);
14982 if (WARN_ON(IS_ERR(state
)))
14985 intel_state
= to_intel_atomic_state(state
);
14988 * Hardware readout is the only time we don't want to calculate
14989 * intermediate watermarks (since we don't trust the current
14992 if (!HAS_GMCH_DISPLAY(dev_priv
))
14993 intel_state
->skip_intermediate_wm
= true;
14995 ret
= intel_atomic_check(dev
, state
);
14998 * If we fail here, it means that the hardware appears to be
14999 * programmed in a way that shouldn't be possible, given our
15000 * understanding of watermark requirements. This might mean a
15001 * mistake in the hardware readout code or a mistake in the
15002 * watermark calculations for a given platform. Raise a WARN
15003 * so that this is noticeable.
15005 * If this actually happens, we'll have to just leave the
15006 * BIOS-programmed watermarks untouched and hope for the best.
15008 WARN(true, "Could not determine valid watermarks for inherited state\n");
15012 /* Write calculated watermark values back */
15013 for_each_new_crtc_in_state(state
, crtc
, cstate
, i
) {
15014 struct intel_crtc_state
*cs
= to_intel_crtc_state(cstate
);
15016 cs
->wm
.need_postvbl_update
= true;
15017 dev_priv
->display
.optimize_watermarks(intel_state
, cs
);
15021 drm_atomic_state_put(state
);
15023 drm_modeset_drop_locks(&ctx
);
15024 drm_modeset_acquire_fini(&ctx
);
15027 int intel_modeset_init(struct drm_device
*dev
)
15029 struct drm_i915_private
*dev_priv
= to_i915(dev
);
15030 struct i915_ggtt
*ggtt
= &dev_priv
->ggtt
;
15032 struct intel_crtc
*crtc
;
15034 drm_mode_config_init(dev
);
15036 dev
->mode_config
.min_width
= 0;
15037 dev
->mode_config
.min_height
= 0;
15039 dev
->mode_config
.preferred_depth
= 24;
15040 dev
->mode_config
.prefer_shadow
= 1;
15042 dev
->mode_config
.allow_fb_modifiers
= true;
15044 dev
->mode_config
.funcs
= &intel_mode_funcs
;
15046 init_llist_head(&dev_priv
->atomic_helper
.free_list
);
15047 INIT_WORK(&dev_priv
->atomic_helper
.free_work
,
15048 intel_atomic_helper_free_state_worker
);
15050 intel_init_quirks(dev
);
15052 intel_init_pm(dev_priv
);
15054 if (INTEL_INFO(dev_priv
)->num_pipes
== 0)
15058 * There may be no VBT; and if the BIOS enabled SSC we can
15059 * just keep using it to avoid unnecessary flicker. Whereas if the
15060 * BIOS isn't using it, don't assume it will work even if the VBT
15061 * indicates as much.
15063 if (HAS_PCH_IBX(dev_priv
) || HAS_PCH_CPT(dev_priv
)) {
15064 bool bios_lvds_use_ssc
= !!(I915_READ(PCH_DREF_CONTROL
) &
15067 if (dev_priv
->vbt
.lvds_use_ssc
!= bios_lvds_use_ssc
) {
15068 DRM_DEBUG_KMS("SSC %sabled by BIOS, overriding VBT which says %sabled\n",
15069 bios_lvds_use_ssc
? "en" : "dis",
15070 dev_priv
->vbt
.lvds_use_ssc
? "en" : "dis");
15071 dev_priv
->vbt
.lvds_use_ssc
= bios_lvds_use_ssc
;
15075 if (IS_GEN2(dev_priv
)) {
15076 dev
->mode_config
.max_width
= 2048;
15077 dev
->mode_config
.max_height
= 2048;
15078 } else if (IS_GEN3(dev_priv
)) {
15079 dev
->mode_config
.max_width
= 4096;
15080 dev
->mode_config
.max_height
= 4096;
15082 dev
->mode_config
.max_width
= 8192;
15083 dev
->mode_config
.max_height
= 8192;
15086 if (IS_I845G(dev_priv
) || IS_I865G(dev_priv
)) {
15087 dev
->mode_config
.cursor_width
= IS_I845G(dev_priv
) ? 64 : 512;
15088 dev
->mode_config
.cursor_height
= 1023;
15089 } else if (IS_GEN2(dev_priv
)) {
15090 dev
->mode_config
.cursor_width
= GEN2_CURSOR_WIDTH
;
15091 dev
->mode_config
.cursor_height
= GEN2_CURSOR_HEIGHT
;
15093 dev
->mode_config
.cursor_width
= MAX_CURSOR_WIDTH
;
15094 dev
->mode_config
.cursor_height
= MAX_CURSOR_HEIGHT
;
15097 dev
->mode_config
.fb_base
= ggtt
->mappable_base
;
15099 DRM_DEBUG_KMS("%d display pipe%s available.\n",
15100 INTEL_INFO(dev_priv
)->num_pipes
,
15101 INTEL_INFO(dev_priv
)->num_pipes
> 1 ? "s" : "");
15103 for_each_pipe(dev_priv
, pipe
) {
15106 ret
= intel_crtc_init(dev_priv
, pipe
);
15108 drm_mode_config_cleanup(dev
);
15113 intel_shared_dpll_init(dev
);
15115 intel_update_czclk(dev_priv
);
15116 intel_modeset_init_hw(dev
);
15118 if (dev_priv
->max_cdclk_freq
== 0)
15119 intel_update_max_cdclk(dev_priv
);
15121 /* Just disable it once at startup */
15122 i915_disable_vga(dev_priv
);
15123 intel_setup_outputs(dev_priv
);
15125 drm_modeset_lock_all(dev
);
15126 intel_modeset_setup_hw_state(dev
, dev
->mode_config
.acquire_ctx
);
15127 drm_modeset_unlock_all(dev
);
15129 for_each_intel_crtc(dev
, crtc
) {
15130 struct intel_initial_plane_config plane_config
= {};
15136 * Note that reserving the BIOS fb up front prevents us
15137 * from stuffing other stolen allocations like the ring
15138 * on top. This prevents some ugliness at boot time, and
15139 * can even allow for smooth boot transitions if the BIOS
15140 * fb is large enough for the active pipe configuration.
15142 dev_priv
->display
.get_initial_plane_config(crtc
,
15146 * If the fb is shared between multiple heads, we'll
15147 * just get the first one.
15149 intel_find_initial_plane_obj(crtc
, &plane_config
);
15153 * Make sure hardware watermarks really match the state we read out.
15154 * Note that we need to do this after reconstructing the BIOS fb's
15155 * since the watermark calculation done here will use pstate->fb.
15157 if (!HAS_GMCH_DISPLAY(dev_priv
))
15158 sanitize_watermarks(dev
);
15163 void i830_enable_pipe(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
15165 /* 640x480@60Hz, ~25175 kHz */
15166 struct dpll clock
= {
15176 WARN_ON(i9xx_calc_dpll_params(48000, &clock
) != 25154);
15178 DRM_DEBUG_KMS("enabling pipe %c due to force quirk (vco=%d dot=%d)\n",
15179 pipe_name(pipe
), clock
.vco
, clock
.dot
);
15181 fp
= i9xx_dpll_compute_fp(&clock
);
15182 dpll
= (I915_READ(DPLL(pipe
)) & DPLL_DVO_2X_MODE
) |
15183 DPLL_VGA_MODE_DIS
|
15184 ((clock
.p1
- 2) << DPLL_FPA01_P1_POST_DIV_SHIFT
) |
15185 PLL_P2_DIVIDE_BY_4
|
15186 PLL_REF_INPUT_DREFCLK
|
15189 I915_WRITE(FP0(pipe
), fp
);
15190 I915_WRITE(FP1(pipe
), fp
);
15192 I915_WRITE(HTOTAL(pipe
), (640 - 1) | ((800 - 1) << 16));
15193 I915_WRITE(HBLANK(pipe
), (640 - 1) | ((800 - 1) << 16));
15194 I915_WRITE(HSYNC(pipe
), (656 - 1) | ((752 - 1) << 16));
15195 I915_WRITE(VTOTAL(pipe
), (480 - 1) | ((525 - 1) << 16));
15196 I915_WRITE(VBLANK(pipe
), (480 - 1) | ((525 - 1) << 16));
15197 I915_WRITE(VSYNC(pipe
), (490 - 1) | ((492 - 1) << 16));
15198 I915_WRITE(PIPESRC(pipe
), ((640 - 1) << 16) | (480 - 1));
15201 * Apparently we need to have VGA mode enabled prior to changing
15202 * the P1/P2 dividers. Otherwise the DPLL will keep using the old
15203 * dividers, even though the register value does change.
15205 I915_WRITE(DPLL(pipe
), dpll
& ~DPLL_VGA_MODE_DIS
);
15206 I915_WRITE(DPLL(pipe
), dpll
);
15208 /* Wait for the clocks to stabilize. */
15209 POSTING_READ(DPLL(pipe
));
15212 /* The pixel multiplier can only be updated once the
15213 * DPLL is enabled and the clocks are stable.
15215 * So write it again.
15217 I915_WRITE(DPLL(pipe
), dpll
);
15219 /* We do this three times for luck */
15220 for (i
= 0; i
< 3 ; i
++) {
15221 I915_WRITE(DPLL(pipe
), dpll
);
15222 POSTING_READ(DPLL(pipe
));
15223 udelay(150); /* wait for warmup */
15226 I915_WRITE(PIPECONF(pipe
), PIPECONF_ENABLE
| PIPECONF_PROGRESSIVE
);
15227 POSTING_READ(PIPECONF(pipe
));
15230 void i830_disable_pipe(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
15232 DRM_DEBUG_KMS("disabling pipe %c due to force quirk\n",
15235 assert_plane_disabled(dev_priv
, PLANE_A
);
15236 assert_plane_disabled(dev_priv
, PLANE_B
);
15238 I915_WRITE(PIPECONF(pipe
), 0);
15239 POSTING_READ(PIPECONF(pipe
));
15241 if (wait_for(pipe_dsl_stopped(dev_priv
, pipe
), 100))
15242 DRM_ERROR("pipe %c off wait timed out\n", pipe_name(pipe
));
15244 I915_WRITE(DPLL(pipe
), DPLL_VGA_MODE_DIS
);
15245 POSTING_READ(DPLL(pipe
));
15249 intel_check_plane_mapping(struct intel_crtc
*crtc
)
15251 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
15254 if (INTEL_INFO(dev_priv
)->num_pipes
== 1)
15257 val
= I915_READ(DSPCNTR(!crtc
->plane
));
15259 if ((val
& DISPLAY_PLANE_ENABLE
) &&
15260 (!!(val
& DISPPLANE_SEL_PIPE_MASK
) == crtc
->pipe
))
15266 static bool intel_crtc_has_encoders(struct intel_crtc
*crtc
)
15268 struct drm_device
*dev
= crtc
->base
.dev
;
15269 struct intel_encoder
*encoder
;
15271 for_each_encoder_on_crtc(dev
, &crtc
->base
, encoder
)
15277 static struct intel_connector
*intel_encoder_find_connector(struct intel_encoder
*encoder
)
15279 struct drm_device
*dev
= encoder
->base
.dev
;
15280 struct intel_connector
*connector
;
15282 for_each_connector_on_encoder(dev
, &encoder
->base
, connector
)
15288 static bool has_pch_trancoder(struct drm_i915_private
*dev_priv
,
15289 enum transcoder pch_transcoder
)
15291 return HAS_PCH_IBX(dev_priv
) || HAS_PCH_CPT(dev_priv
) ||
15292 (HAS_PCH_LPT_H(dev_priv
) && pch_transcoder
== TRANSCODER_A
);
15295 static void intel_sanitize_crtc(struct intel_crtc
*crtc
,
15296 struct drm_modeset_acquire_ctx
*ctx
)
15298 struct drm_device
*dev
= crtc
->base
.dev
;
15299 struct drm_i915_private
*dev_priv
= to_i915(dev
);
15300 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
15302 /* Clear any frame start delays used for debugging left by the BIOS */
15303 if (!transcoder_is_dsi(cpu_transcoder
)) {
15304 i915_reg_t reg
= PIPECONF(cpu_transcoder
);
15307 I915_READ(reg
) & ~PIPECONF_FRAME_START_DELAY_MASK
);
15310 /* restore vblank interrupts to correct state */
15311 drm_crtc_vblank_reset(&crtc
->base
);
15312 if (crtc
->active
) {
15313 struct intel_plane
*plane
;
15315 drm_crtc_vblank_on(&crtc
->base
);
15317 /* Disable everything but the primary plane */
15318 for_each_intel_plane_on_crtc(dev
, crtc
, plane
) {
15319 if (plane
->base
.type
== DRM_PLANE_TYPE_PRIMARY
)
15322 trace_intel_disable_plane(&plane
->base
, crtc
);
15323 plane
->disable_plane(plane
, crtc
);
15327 /* We need to sanitize the plane -> pipe mapping first because this will
15328 * disable the crtc (and hence change the state) if it is wrong. Note
15329 * that gen4+ has a fixed plane -> pipe mapping. */
15330 if (INTEL_GEN(dev_priv
) < 4 && !intel_check_plane_mapping(crtc
)) {
15333 DRM_DEBUG_KMS("[CRTC:%d:%s] wrong plane connection detected!\n",
15334 crtc
->base
.base
.id
, crtc
->base
.name
);
15336 /* Pipe has the wrong plane attached and the plane is active.
15337 * Temporarily change the plane mapping and disable everything
15339 plane
= crtc
->plane
;
15340 crtc
->base
.primary
->state
->visible
= true;
15341 crtc
->plane
= !plane
;
15342 intel_crtc_disable_noatomic(&crtc
->base
, ctx
);
15343 crtc
->plane
= plane
;
15346 /* Adjust the state of the output pipe according to whether we
15347 * have active connectors/encoders. */
15348 if (crtc
->active
&& !intel_crtc_has_encoders(crtc
))
15349 intel_crtc_disable_noatomic(&crtc
->base
, ctx
);
15351 if (crtc
->active
|| HAS_GMCH_DISPLAY(dev_priv
)) {
15353 * We start out with underrun reporting disabled to avoid races.
15354 * For correct bookkeeping mark this on active crtcs.
15356 * Also on gmch platforms we dont have any hardware bits to
15357 * disable the underrun reporting. Which means we need to start
15358 * out with underrun reporting disabled also on inactive pipes,
15359 * since otherwise we'll complain about the garbage we read when
15360 * e.g. coming up after runtime pm.
15362 * No protection against concurrent access is required - at
15363 * worst a fifo underrun happens which also sets this to false.
15365 crtc
->cpu_fifo_underrun_disabled
= true;
15367 * We track the PCH trancoder underrun reporting state
15368 * within the crtc. With crtc for pipe A housing the underrun
15369 * reporting state for PCH transcoder A, crtc for pipe B housing
15370 * it for PCH transcoder B, etc. LPT-H has only PCH transcoder A,
15371 * and marking underrun reporting as disabled for the non-existing
15372 * PCH transcoders B and C would prevent enabling the south
15373 * error interrupt (see cpt_can_enable_serr_int()).
15375 if (has_pch_trancoder(dev_priv
, (enum transcoder
)crtc
->pipe
))
15376 crtc
->pch_fifo_underrun_disabled
= true;
15380 static void intel_sanitize_encoder(struct intel_encoder
*encoder
)
15382 struct intel_connector
*connector
;
15384 /* We need to check both for a crtc link (meaning that the
15385 * encoder is active and trying to read from a pipe) and the
15386 * pipe itself being active. */
15387 bool has_active_crtc
= encoder
->base
.crtc
&&
15388 to_intel_crtc(encoder
->base
.crtc
)->active
;
15390 connector
= intel_encoder_find_connector(encoder
);
15391 if (connector
&& !has_active_crtc
) {
15392 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
15393 encoder
->base
.base
.id
,
15394 encoder
->base
.name
);
15396 /* Connector is active, but has no active pipe. This is
15397 * fallout from our resume register restoring. Disable
15398 * the encoder manually again. */
15399 if (encoder
->base
.crtc
) {
15400 struct drm_crtc_state
*crtc_state
= encoder
->base
.crtc
->state
;
15402 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
15403 encoder
->base
.base
.id
,
15404 encoder
->base
.name
);
15405 encoder
->disable(encoder
, to_intel_crtc_state(crtc_state
), connector
->base
.state
);
15406 if (encoder
->post_disable
)
15407 encoder
->post_disable(encoder
, to_intel_crtc_state(crtc_state
), connector
->base
.state
);
15409 encoder
->base
.crtc
= NULL
;
15411 /* Inconsistent output/port/pipe state happens presumably due to
15412 * a bug in one of the get_hw_state functions. Or someplace else
15413 * in our code, like the register restore mess on resume. Clamp
15414 * things to off as a safer default. */
15416 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
15417 connector
->base
.encoder
= NULL
;
15419 /* Enabled encoders without active connectors will be fixed in
15420 * the crtc fixup. */
15423 void i915_redisable_vga_power_on(struct drm_i915_private
*dev_priv
)
15425 i915_reg_t vga_reg
= i915_vgacntrl_reg(dev_priv
);
15427 if (!(I915_READ(vga_reg
) & VGA_DISP_DISABLE
)) {
15428 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
15429 i915_disable_vga(dev_priv
);
15433 void i915_redisable_vga(struct drm_i915_private
*dev_priv
)
15435 /* This function can be called both from intel_modeset_setup_hw_state or
15436 * at a very early point in our resume sequence, where the power well
15437 * structures are not yet restored. Since this function is at a very
15438 * paranoid "someone might have enabled VGA while we were not looking"
15439 * level, just check if the power well is enabled instead of trying to
15440 * follow the "don't touch the power well if we don't need it" policy
15441 * the rest of the driver uses. */
15442 if (!intel_display_power_get_if_enabled(dev_priv
, POWER_DOMAIN_VGA
))
15445 i915_redisable_vga_power_on(dev_priv
);
15447 intel_display_power_put(dev_priv
, POWER_DOMAIN_VGA
);
15450 static bool primary_get_hw_state(struct intel_plane
*plane
)
15452 struct drm_i915_private
*dev_priv
= to_i915(plane
->base
.dev
);
15454 return I915_READ(DSPCNTR(plane
->plane
)) & DISPLAY_PLANE_ENABLE
;
15457 /* FIXME read out full plane state for all planes */
15458 static void readout_plane_state(struct intel_crtc
*crtc
)
15460 struct intel_plane
*primary
= to_intel_plane(crtc
->base
.primary
);
15463 visible
= crtc
->active
&& primary_get_hw_state(primary
);
15465 intel_set_plane_visible(to_intel_crtc_state(crtc
->base
.state
),
15466 to_intel_plane_state(primary
->base
.state
),
15470 static void intel_modeset_readout_hw_state(struct drm_device
*dev
)
15472 struct drm_i915_private
*dev_priv
= to_i915(dev
);
15474 struct intel_crtc
*crtc
;
15475 struct intel_encoder
*encoder
;
15476 struct intel_connector
*connector
;
15477 struct drm_connector_list_iter conn_iter
;
15480 dev_priv
->active_crtcs
= 0;
15482 for_each_intel_crtc(dev
, crtc
) {
15483 struct intel_crtc_state
*crtc_state
=
15484 to_intel_crtc_state(crtc
->base
.state
);
15486 __drm_atomic_helper_crtc_destroy_state(&crtc_state
->base
);
15487 memset(crtc_state
, 0, sizeof(*crtc_state
));
15488 crtc_state
->base
.crtc
= &crtc
->base
;
15490 crtc_state
->base
.active
= crtc_state
->base
.enable
=
15491 dev_priv
->display
.get_pipe_config(crtc
, crtc_state
);
15493 crtc
->base
.enabled
= crtc_state
->base
.enable
;
15494 crtc
->active
= crtc_state
->base
.active
;
15496 if (crtc_state
->base
.active
)
15497 dev_priv
->active_crtcs
|= 1 << crtc
->pipe
;
15499 readout_plane_state(crtc
);
15501 DRM_DEBUG_KMS("[CRTC:%d:%s] hw state readout: %s\n",
15502 crtc
->base
.base
.id
, crtc
->base
.name
,
15503 enableddisabled(crtc_state
->base
.active
));
15506 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
15507 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
15509 pll
->on
= pll
->funcs
.get_hw_state(dev_priv
, pll
,
15510 &pll
->state
.hw_state
);
15511 pll
->state
.crtc_mask
= 0;
15512 for_each_intel_crtc(dev
, crtc
) {
15513 struct intel_crtc_state
*crtc_state
=
15514 to_intel_crtc_state(crtc
->base
.state
);
15516 if (crtc_state
->base
.active
&&
15517 crtc_state
->shared_dpll
== pll
)
15518 pll
->state
.crtc_mask
|= 1 << crtc
->pipe
;
15520 pll
->active_mask
= pll
->state
.crtc_mask
;
15522 DRM_DEBUG_KMS("%s hw state readout: crtc_mask 0x%08x, on %i\n",
15523 pll
->name
, pll
->state
.crtc_mask
, pll
->on
);
15526 for_each_intel_encoder(dev
, encoder
) {
15529 if (encoder
->get_hw_state(encoder
, &pipe
)) {
15530 struct intel_crtc_state
*crtc_state
;
15532 crtc
= intel_get_crtc_for_pipe(dev_priv
, pipe
);
15533 crtc_state
= to_intel_crtc_state(crtc
->base
.state
);
15535 encoder
->base
.crtc
= &crtc
->base
;
15536 crtc_state
->output_types
|= 1 << encoder
->type
;
15537 encoder
->get_config(encoder
, crtc_state
);
15539 encoder
->base
.crtc
= NULL
;
15542 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n",
15543 encoder
->base
.base
.id
, encoder
->base
.name
,
15544 enableddisabled(encoder
->base
.crtc
),
15548 drm_connector_list_iter_begin(dev
, &conn_iter
);
15549 for_each_intel_connector_iter(connector
, &conn_iter
) {
15550 if (connector
->get_hw_state(connector
)) {
15551 connector
->base
.dpms
= DRM_MODE_DPMS_ON
;
15553 encoder
= connector
->encoder
;
15554 connector
->base
.encoder
= &encoder
->base
;
15556 if (encoder
->base
.crtc
&&
15557 encoder
->base
.crtc
->state
->active
) {
15559 * This has to be done during hardware readout
15560 * because anything calling .crtc_disable may
15561 * rely on the connector_mask being accurate.
15563 encoder
->base
.crtc
->state
->connector_mask
|=
15564 1 << drm_connector_index(&connector
->base
);
15565 encoder
->base
.crtc
->state
->encoder_mask
|=
15566 1 << drm_encoder_index(&encoder
->base
);
15570 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
15571 connector
->base
.encoder
= NULL
;
15573 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
15574 connector
->base
.base
.id
, connector
->base
.name
,
15575 enableddisabled(connector
->base
.encoder
));
15577 drm_connector_list_iter_end(&conn_iter
);
15579 for_each_intel_crtc(dev
, crtc
) {
15580 struct intel_crtc_state
*crtc_state
=
15581 to_intel_crtc_state(crtc
->base
.state
);
15584 memset(&crtc
->base
.mode
, 0, sizeof(crtc
->base
.mode
));
15585 if (crtc_state
->base
.active
) {
15586 intel_mode_from_pipe_config(&crtc
->base
.mode
, crtc_state
);
15587 intel_mode_from_pipe_config(&crtc_state
->base
.adjusted_mode
, crtc_state
);
15588 WARN_ON(drm_atomic_set_mode_for_crtc(crtc
->base
.state
, &crtc
->base
.mode
));
15591 * The initial mode needs to be set in order to keep
15592 * the atomic core happy. It wants a valid mode if the
15593 * crtc's enabled, so we do the above call.
15595 * But we don't set all the derived state fully, hence
15596 * set a flag to indicate that a full recalculation is
15597 * needed on the next commit.
15599 crtc_state
->base
.mode
.private_flags
= I915_MODE_FLAG_INHERITED
;
15601 intel_crtc_compute_pixel_rate(crtc_state
);
15603 if (INTEL_GEN(dev_priv
) >= 9 || IS_BROADWELL(dev_priv
) ||
15604 IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
))
15605 pixclk
= crtc_state
->pixel_rate
;
15607 WARN_ON(dev_priv
->display
.modeset_calc_cdclk
);
15609 /* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */
15610 if (IS_BROADWELL(dev_priv
) && crtc_state
->ips_enabled
)
15611 pixclk
= DIV_ROUND_UP(pixclk
* 100, 95);
15613 drm_calc_timestamping_constants(&crtc
->base
,
15614 &crtc_state
->base
.adjusted_mode
);
15615 update_scanline_offset(crtc
);
15618 dev_priv
->min_pixclk
[crtc
->pipe
] = pixclk
;
15620 intel_pipe_config_sanity_check(dev_priv
, crtc_state
);
15625 get_encoder_power_domains(struct drm_i915_private
*dev_priv
)
15627 struct intel_encoder
*encoder
;
15629 for_each_intel_encoder(&dev_priv
->drm
, encoder
) {
15631 enum intel_display_power_domain domain
;
15633 if (!encoder
->get_power_domains
)
15636 get_domains
= encoder
->get_power_domains(encoder
);
15637 for_each_power_domain(domain
, get_domains
)
15638 intel_display_power_get(dev_priv
, domain
);
15642 /* Scan out the current hw modeset state,
15643 * and sanitizes it to the current state
15646 intel_modeset_setup_hw_state(struct drm_device
*dev
,
15647 struct drm_modeset_acquire_ctx
*ctx
)
15649 struct drm_i915_private
*dev_priv
= to_i915(dev
);
15651 struct intel_crtc
*crtc
;
15652 struct intel_encoder
*encoder
;
15655 intel_modeset_readout_hw_state(dev
);
15657 /* HW state is read out, now we need to sanitize this mess. */
15658 get_encoder_power_domains(dev_priv
);
15660 for_each_intel_encoder(dev
, encoder
) {
15661 intel_sanitize_encoder(encoder
);
15664 for_each_pipe(dev_priv
, pipe
) {
15665 crtc
= intel_get_crtc_for_pipe(dev_priv
, pipe
);
15667 intel_sanitize_crtc(crtc
, ctx
);
15668 intel_dump_pipe_config(crtc
, crtc
->config
,
15669 "[setup_hw_state]");
15672 intel_modeset_update_connector_atomic_state(dev
);
15674 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
15675 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
15677 if (!pll
->on
|| pll
->active_mask
)
15680 DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll
->name
);
15682 pll
->funcs
.disable(dev_priv
, pll
);
15686 if (IS_G4X(dev_priv
)) {
15687 g4x_wm_get_hw_state(dev
);
15688 g4x_wm_sanitize(dev_priv
);
15689 } else if (IS_VALLEYVIEW(dev_priv
) || IS_CHERRYVIEW(dev_priv
)) {
15690 vlv_wm_get_hw_state(dev
);
15691 vlv_wm_sanitize(dev_priv
);
15692 } else if (IS_GEN9(dev_priv
)) {
15693 skl_wm_get_hw_state(dev
);
15694 } else if (HAS_PCH_SPLIT(dev_priv
)) {
15695 ilk_wm_get_hw_state(dev
);
15698 for_each_intel_crtc(dev
, crtc
) {
15701 put_domains
= modeset_get_crtc_power_domains(&crtc
->base
, crtc
->config
);
15702 if (WARN_ON(put_domains
))
15703 modeset_put_power_domains(dev_priv
, put_domains
);
15705 intel_display_set_init_power(dev_priv
, false);
15707 intel_power_domains_verify_state(dev_priv
);
15709 intel_fbc_init_pipe_state(dev_priv
);
15712 void intel_display_resume(struct drm_device
*dev
)
15714 struct drm_i915_private
*dev_priv
= to_i915(dev
);
15715 struct drm_atomic_state
*state
= dev_priv
->modeset_restore_state
;
15716 struct drm_modeset_acquire_ctx ctx
;
15719 dev_priv
->modeset_restore_state
= NULL
;
15721 state
->acquire_ctx
= &ctx
;
15723 drm_modeset_acquire_init(&ctx
, 0);
15726 ret
= drm_modeset_lock_all_ctx(dev
, &ctx
);
15727 if (ret
!= -EDEADLK
)
15730 drm_modeset_backoff(&ctx
);
15734 ret
= __intel_display_resume(dev
, state
, &ctx
);
15736 drm_modeset_drop_locks(&ctx
);
15737 drm_modeset_acquire_fini(&ctx
);
15740 DRM_ERROR("Restoring old state failed with %i\n", ret
);
15742 drm_atomic_state_put(state
);
15745 void intel_modeset_gem_init(struct drm_device
*dev
)
15747 struct drm_i915_private
*dev_priv
= to_i915(dev
);
15749 intel_init_gt_powersave(dev_priv
);
15751 intel_setup_overlay(dev_priv
);
15754 int intel_connector_register(struct drm_connector
*connector
)
15756 struct intel_connector
*intel_connector
= to_intel_connector(connector
);
15759 ret
= intel_backlight_device_register(intel_connector
);
15769 void intel_connector_unregister(struct drm_connector
*connector
)
15771 struct intel_connector
*intel_connector
= to_intel_connector(connector
);
15773 intel_backlight_device_unregister(intel_connector
);
15774 intel_panel_destroy_backlight(connector
);
15777 void intel_modeset_cleanup(struct drm_device
*dev
)
15779 struct drm_i915_private
*dev_priv
= to_i915(dev
);
15781 flush_work(&dev_priv
->atomic_helper
.free_work
);
15782 WARN_ON(!llist_empty(&dev_priv
->atomic_helper
.free_list
));
15784 intel_disable_gt_powersave(dev_priv
);
15787 * Interrupts and polling as the first thing to avoid creating havoc.
15788 * Too much stuff here (turning of connectors, ...) would
15789 * experience fancy races otherwise.
15791 intel_irq_uninstall(dev_priv
);
15794 * Due to the hpd irq storm handling the hotplug work can re-arm the
15795 * poll handlers. Hence disable polling after hpd handling is shut down.
15797 drm_kms_helper_poll_fini(dev
);
15799 intel_unregister_dsm_handler();
15801 intel_fbc_global_disable(dev_priv
);
15803 /* flush any delayed tasks or pending work */
15804 flush_scheduled_work();
15806 drm_mode_config_cleanup(dev
);
15808 intel_cleanup_overlay(dev_priv
);
15810 intel_cleanup_gt_powersave(dev_priv
);
15812 intel_teardown_gmbus(dev_priv
);
15815 void intel_connector_attach_encoder(struct intel_connector
*connector
,
15816 struct intel_encoder
*encoder
)
15818 connector
->encoder
= encoder
;
15819 drm_mode_connector_attach_encoder(&connector
->base
,
15824 * set vga decode state - true == enable VGA decode
15826 int intel_modeset_vga_set_state(struct drm_i915_private
*dev_priv
, bool state
)
15828 unsigned reg
= INTEL_GEN(dev_priv
) >= 6 ? SNB_GMCH_CTRL
: INTEL_GMCH_CTRL
;
15831 if (pci_read_config_word(dev_priv
->bridge_dev
, reg
, &gmch_ctrl
)) {
15832 DRM_ERROR("failed to read control word\n");
15836 if (!!(gmch_ctrl
& INTEL_GMCH_VGA_DISABLE
) == !state
)
15840 gmch_ctrl
&= ~INTEL_GMCH_VGA_DISABLE
;
15842 gmch_ctrl
|= INTEL_GMCH_VGA_DISABLE
;
15844 if (pci_write_config_word(dev_priv
->bridge_dev
, reg
, gmch_ctrl
)) {
15845 DRM_ERROR("failed to write control word\n");
15852 #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
15854 struct intel_display_error_state
{
15856 u32 power_well_driver
;
15858 int num_transcoders
;
15860 struct intel_cursor_error_state
{
15865 } cursor
[I915_MAX_PIPES
];
15867 struct intel_pipe_error_state
{
15868 bool power_domain_on
;
15871 } pipe
[I915_MAX_PIPES
];
15873 struct intel_plane_error_state
{
15881 } plane
[I915_MAX_PIPES
];
15883 struct intel_transcoder_error_state
{
15884 bool power_domain_on
;
15885 enum transcoder cpu_transcoder
;
15898 struct intel_display_error_state
*
15899 intel_display_capture_error_state(struct drm_i915_private
*dev_priv
)
15901 struct intel_display_error_state
*error
;
15902 int transcoders
[] = {
15910 if (INTEL_INFO(dev_priv
)->num_pipes
== 0)
15913 error
= kzalloc(sizeof(*error
), GFP_ATOMIC
);
15917 if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
))
15918 error
->power_well_driver
= I915_READ(HSW_PWR_WELL_DRIVER
);
15920 for_each_pipe(dev_priv
, i
) {
15921 error
->pipe
[i
].power_domain_on
=
15922 __intel_display_power_is_enabled(dev_priv
,
15923 POWER_DOMAIN_PIPE(i
));
15924 if (!error
->pipe
[i
].power_domain_on
)
15927 error
->cursor
[i
].control
= I915_READ(CURCNTR(i
));
15928 error
->cursor
[i
].position
= I915_READ(CURPOS(i
));
15929 error
->cursor
[i
].base
= I915_READ(CURBASE(i
));
15931 error
->plane
[i
].control
= I915_READ(DSPCNTR(i
));
15932 error
->plane
[i
].stride
= I915_READ(DSPSTRIDE(i
));
15933 if (INTEL_GEN(dev_priv
) <= 3) {
15934 error
->plane
[i
].size
= I915_READ(DSPSIZE(i
));
15935 error
->plane
[i
].pos
= I915_READ(DSPPOS(i
));
15937 if (INTEL_GEN(dev_priv
) <= 7 && !IS_HASWELL(dev_priv
))
15938 error
->plane
[i
].addr
= I915_READ(DSPADDR(i
));
15939 if (INTEL_GEN(dev_priv
) >= 4) {
15940 error
->plane
[i
].surface
= I915_READ(DSPSURF(i
));
15941 error
->plane
[i
].tile_offset
= I915_READ(DSPTILEOFF(i
));
15944 error
->pipe
[i
].source
= I915_READ(PIPESRC(i
));
15946 if (HAS_GMCH_DISPLAY(dev_priv
))
15947 error
->pipe
[i
].stat
= I915_READ(PIPESTAT(i
));
15950 /* Note: this does not include DSI transcoders. */
15951 error
->num_transcoders
= INTEL_INFO(dev_priv
)->num_pipes
;
15952 if (HAS_DDI(dev_priv
))
15953 error
->num_transcoders
++; /* Account for eDP. */
15955 for (i
= 0; i
< error
->num_transcoders
; i
++) {
15956 enum transcoder cpu_transcoder
= transcoders
[i
];
15958 error
->transcoder
[i
].power_domain_on
=
15959 __intel_display_power_is_enabled(dev_priv
,
15960 POWER_DOMAIN_TRANSCODER(cpu_transcoder
));
15961 if (!error
->transcoder
[i
].power_domain_on
)
15964 error
->transcoder
[i
].cpu_transcoder
= cpu_transcoder
;
15966 error
->transcoder
[i
].conf
= I915_READ(PIPECONF(cpu_transcoder
));
15967 error
->transcoder
[i
].htotal
= I915_READ(HTOTAL(cpu_transcoder
));
15968 error
->transcoder
[i
].hblank
= I915_READ(HBLANK(cpu_transcoder
));
15969 error
->transcoder
[i
].hsync
= I915_READ(HSYNC(cpu_transcoder
));
15970 error
->transcoder
[i
].vtotal
= I915_READ(VTOTAL(cpu_transcoder
));
15971 error
->transcoder
[i
].vblank
= I915_READ(VBLANK(cpu_transcoder
));
15972 error
->transcoder
[i
].vsync
= I915_READ(VSYNC(cpu_transcoder
));
15978 #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
15981 intel_display_print_error_state(struct drm_i915_error_state_buf
*m
,
15982 struct intel_display_error_state
*error
)
15984 struct drm_i915_private
*dev_priv
= m
->i915
;
15990 err_printf(m
, "Num Pipes: %d\n", INTEL_INFO(dev_priv
)->num_pipes
);
15991 if (IS_HASWELL(dev_priv
) || IS_BROADWELL(dev_priv
))
15992 err_printf(m
, "PWR_WELL_CTL2: %08x\n",
15993 error
->power_well_driver
);
15994 for_each_pipe(dev_priv
, i
) {
15995 err_printf(m
, "Pipe [%d]:\n", i
);
15996 err_printf(m
, " Power: %s\n",
15997 onoff(error
->pipe
[i
].power_domain_on
));
15998 err_printf(m
, " SRC: %08x\n", error
->pipe
[i
].source
);
15999 err_printf(m
, " STAT: %08x\n", error
->pipe
[i
].stat
);
16001 err_printf(m
, "Plane [%d]:\n", i
);
16002 err_printf(m
, " CNTR: %08x\n", error
->plane
[i
].control
);
16003 err_printf(m
, " STRIDE: %08x\n", error
->plane
[i
].stride
);
16004 if (INTEL_GEN(dev_priv
) <= 3) {
16005 err_printf(m
, " SIZE: %08x\n", error
->plane
[i
].size
);
16006 err_printf(m
, " POS: %08x\n", error
->plane
[i
].pos
);
16008 if (INTEL_GEN(dev_priv
) <= 7 && !IS_HASWELL(dev_priv
))
16009 err_printf(m
, " ADDR: %08x\n", error
->plane
[i
].addr
);
16010 if (INTEL_GEN(dev_priv
) >= 4) {
16011 err_printf(m
, " SURF: %08x\n", error
->plane
[i
].surface
);
16012 err_printf(m
, " TILEOFF: %08x\n", error
->plane
[i
].tile_offset
);
16015 err_printf(m
, "Cursor [%d]:\n", i
);
16016 err_printf(m
, " CNTR: %08x\n", error
->cursor
[i
].control
);
16017 err_printf(m
, " POS: %08x\n", error
->cursor
[i
].position
);
16018 err_printf(m
, " BASE: %08x\n", error
->cursor
[i
].base
);
16021 for (i
= 0; i
< error
->num_transcoders
; i
++) {
16022 err_printf(m
, "CPU transcoder: %s\n",
16023 transcoder_name(error
->transcoder
[i
].cpu_transcoder
));
16024 err_printf(m
, " Power: %s\n",
16025 onoff(error
->transcoder
[i
].power_domain_on
));
16026 err_printf(m
, " CONF: %08x\n", error
->transcoder
[i
].conf
);
16027 err_printf(m
, " HTOTAL: %08x\n", error
->transcoder
[i
].htotal
);
16028 err_printf(m
, " HBLANK: %08x\n", error
->transcoder
[i
].hblank
);
16029 err_printf(m
, " HSYNC: %08x\n", error
->transcoder
[i
].hsync
);
16030 err_printf(m
, " VTOTAL: %08x\n", error
->transcoder
[i
].vtotal
);
16031 err_printf(m
, " VBLANK: %08x\n", error
->transcoder
[i
].vblank
);
16032 err_printf(m
, " VSYNC: %08x\n", error
->transcoder
[i
].vsync
);