2 * Copyright © 2006-2007 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
24 * Eric Anholt <eric@anholt.net>
27 #include <linux/dmi.h>
28 #include <linux/module.h>
29 #include <linux/input.h>
30 #include <linux/i2c.h>
31 #include <linux/kernel.h>
32 #include <linux/slab.h>
33 #include <linux/vgaarb.h>
34 #include <drm/drm_edid.h>
36 #include "intel_drv.h"
37 #include <drm/i915_drm.h>
39 #include "i915_trace.h"
40 #include <drm/drm_dp_helper.h>
41 #include <drm/drm_crtc_helper.h>
42 #include <drm/drm_plane_helper.h>
43 #include <drm/drm_rect.h>
44 #include <linux/dma_remapping.h>
46 /* Primary plane formats supported by all gen */
47 #define COMMON_PRIMARY_FORMATS \
50 DRM_FORMAT_XRGB8888, \
53 /* Primary plane formats for gen <= 3 */
54 static const uint32_t intel_primary_formats_gen2
[] = {
55 COMMON_PRIMARY_FORMATS
,
60 /* Primary plane formats for gen >= 4 */
61 static const uint32_t intel_primary_formats_gen4
[] = {
62 COMMON_PRIMARY_FORMATS
, \
65 DRM_FORMAT_XRGB2101010
,
66 DRM_FORMAT_ARGB2101010
,
67 DRM_FORMAT_XBGR2101010
,
68 DRM_FORMAT_ABGR2101010
,
72 static const uint32_t intel_cursor_formats
[] = {
76 static void intel_crtc_update_cursor(struct drm_crtc
*crtc
, bool on
);
78 static void i9xx_crtc_clock_get(struct intel_crtc
*crtc
,
79 struct intel_crtc_state
*pipe_config
);
80 static void ironlake_pch_clock_get(struct intel_crtc
*crtc
,
81 struct intel_crtc_state
*pipe_config
);
83 static int intel_set_mode(struct drm_crtc
*crtc
, struct drm_display_mode
*mode
,
84 int x
, int y
, struct drm_framebuffer
*old_fb
);
85 static int intel_framebuffer_init(struct drm_device
*dev
,
86 struct intel_framebuffer
*ifb
,
87 struct drm_mode_fb_cmd2
*mode_cmd
,
88 struct drm_i915_gem_object
*obj
);
89 static void i9xx_set_pipeconf(struct intel_crtc
*intel_crtc
);
90 static void intel_set_pipe_timings(struct intel_crtc
*intel_crtc
);
91 static void intel_cpu_transcoder_set_m_n(struct intel_crtc
*crtc
,
92 struct intel_link_m_n
*m_n
,
93 struct intel_link_m_n
*m2_n2
);
94 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
);
95 static void haswell_set_pipeconf(struct drm_crtc
*crtc
);
96 static void intel_set_pipe_csc(struct drm_crtc
*crtc
);
97 static void vlv_prepare_pll(struct intel_crtc
*crtc
,
98 const struct intel_crtc_state
*pipe_config
);
99 static void chv_prepare_pll(struct intel_crtc
*crtc
,
100 const struct intel_crtc_state
*pipe_config
);
101 static void intel_begin_crtc_commit(struct drm_crtc
*crtc
);
102 static void intel_finish_crtc_commit(struct drm_crtc
*crtc
);
104 static struct intel_encoder
*intel_find_encoder(struct intel_connector
*connector
, int pipe
)
106 if (!connector
->mst_port
)
107 return connector
->encoder
;
109 return &connector
->mst_port
->mst_encoders
[pipe
]->base
;
118 int p2_slow
, p2_fast
;
121 typedef struct intel_limit intel_limit_t
;
123 intel_range_t dot
, vco
, n
, m
, m1
, m2
, p
, p1
;
128 intel_pch_rawclk(struct drm_device
*dev
)
130 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
132 WARN_ON(!HAS_PCH_SPLIT(dev
));
134 return I915_READ(PCH_RAWCLK_FREQ
) & RAWCLK_FREQ_MASK
;
137 static inline u32
/* units of 100MHz */
138 intel_fdi_link_freq(struct drm_device
*dev
)
141 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
142 return (I915_READ(FDI_PLL_BIOS_0
) & FDI_PLL_FB_CLOCK_MASK
) + 2;
147 static const intel_limit_t intel_limits_i8xx_dac
= {
148 .dot
= { .min
= 25000, .max
= 350000 },
149 .vco
= { .min
= 908000, .max
= 1512000 },
150 .n
= { .min
= 2, .max
= 16 },
151 .m
= { .min
= 96, .max
= 140 },
152 .m1
= { .min
= 18, .max
= 26 },
153 .m2
= { .min
= 6, .max
= 16 },
154 .p
= { .min
= 4, .max
= 128 },
155 .p1
= { .min
= 2, .max
= 33 },
156 .p2
= { .dot_limit
= 165000,
157 .p2_slow
= 4, .p2_fast
= 2 },
160 static const intel_limit_t intel_limits_i8xx_dvo
= {
161 .dot
= { .min
= 25000, .max
= 350000 },
162 .vco
= { .min
= 908000, .max
= 1512000 },
163 .n
= { .min
= 2, .max
= 16 },
164 .m
= { .min
= 96, .max
= 140 },
165 .m1
= { .min
= 18, .max
= 26 },
166 .m2
= { .min
= 6, .max
= 16 },
167 .p
= { .min
= 4, .max
= 128 },
168 .p1
= { .min
= 2, .max
= 33 },
169 .p2
= { .dot_limit
= 165000,
170 .p2_slow
= 4, .p2_fast
= 4 },
173 static const intel_limit_t intel_limits_i8xx_lvds
= {
174 .dot
= { .min
= 25000, .max
= 350000 },
175 .vco
= { .min
= 908000, .max
= 1512000 },
176 .n
= { .min
= 2, .max
= 16 },
177 .m
= { .min
= 96, .max
= 140 },
178 .m1
= { .min
= 18, .max
= 26 },
179 .m2
= { .min
= 6, .max
= 16 },
180 .p
= { .min
= 4, .max
= 128 },
181 .p1
= { .min
= 1, .max
= 6 },
182 .p2
= { .dot_limit
= 165000,
183 .p2_slow
= 14, .p2_fast
= 7 },
186 static const intel_limit_t intel_limits_i9xx_sdvo
= {
187 .dot
= { .min
= 20000, .max
= 400000 },
188 .vco
= { .min
= 1400000, .max
= 2800000 },
189 .n
= { .min
= 1, .max
= 6 },
190 .m
= { .min
= 70, .max
= 120 },
191 .m1
= { .min
= 8, .max
= 18 },
192 .m2
= { .min
= 3, .max
= 7 },
193 .p
= { .min
= 5, .max
= 80 },
194 .p1
= { .min
= 1, .max
= 8 },
195 .p2
= { .dot_limit
= 200000,
196 .p2_slow
= 10, .p2_fast
= 5 },
199 static const intel_limit_t intel_limits_i9xx_lvds
= {
200 .dot
= { .min
= 20000, .max
= 400000 },
201 .vco
= { .min
= 1400000, .max
= 2800000 },
202 .n
= { .min
= 1, .max
= 6 },
203 .m
= { .min
= 70, .max
= 120 },
204 .m1
= { .min
= 8, .max
= 18 },
205 .m2
= { .min
= 3, .max
= 7 },
206 .p
= { .min
= 7, .max
= 98 },
207 .p1
= { .min
= 1, .max
= 8 },
208 .p2
= { .dot_limit
= 112000,
209 .p2_slow
= 14, .p2_fast
= 7 },
213 static const intel_limit_t intel_limits_g4x_sdvo
= {
214 .dot
= { .min
= 25000, .max
= 270000 },
215 .vco
= { .min
= 1750000, .max
= 3500000},
216 .n
= { .min
= 1, .max
= 4 },
217 .m
= { .min
= 104, .max
= 138 },
218 .m1
= { .min
= 17, .max
= 23 },
219 .m2
= { .min
= 5, .max
= 11 },
220 .p
= { .min
= 10, .max
= 30 },
221 .p1
= { .min
= 1, .max
= 3},
222 .p2
= { .dot_limit
= 270000,
228 static const intel_limit_t intel_limits_g4x_hdmi
= {
229 .dot
= { .min
= 22000, .max
= 400000 },
230 .vco
= { .min
= 1750000, .max
= 3500000},
231 .n
= { .min
= 1, .max
= 4 },
232 .m
= { .min
= 104, .max
= 138 },
233 .m1
= { .min
= 16, .max
= 23 },
234 .m2
= { .min
= 5, .max
= 11 },
235 .p
= { .min
= 5, .max
= 80 },
236 .p1
= { .min
= 1, .max
= 8},
237 .p2
= { .dot_limit
= 165000,
238 .p2_slow
= 10, .p2_fast
= 5 },
241 static const intel_limit_t intel_limits_g4x_single_channel_lvds
= {
242 .dot
= { .min
= 20000, .max
= 115000 },
243 .vco
= { .min
= 1750000, .max
= 3500000 },
244 .n
= { .min
= 1, .max
= 3 },
245 .m
= { .min
= 104, .max
= 138 },
246 .m1
= { .min
= 17, .max
= 23 },
247 .m2
= { .min
= 5, .max
= 11 },
248 .p
= { .min
= 28, .max
= 112 },
249 .p1
= { .min
= 2, .max
= 8 },
250 .p2
= { .dot_limit
= 0,
251 .p2_slow
= 14, .p2_fast
= 14
255 static const intel_limit_t intel_limits_g4x_dual_channel_lvds
= {
256 .dot
= { .min
= 80000, .max
= 224000 },
257 .vco
= { .min
= 1750000, .max
= 3500000 },
258 .n
= { .min
= 1, .max
= 3 },
259 .m
= { .min
= 104, .max
= 138 },
260 .m1
= { .min
= 17, .max
= 23 },
261 .m2
= { .min
= 5, .max
= 11 },
262 .p
= { .min
= 14, .max
= 42 },
263 .p1
= { .min
= 2, .max
= 6 },
264 .p2
= { .dot_limit
= 0,
265 .p2_slow
= 7, .p2_fast
= 7
269 static const intel_limit_t intel_limits_pineview_sdvo
= {
270 .dot
= { .min
= 20000, .max
= 400000},
271 .vco
= { .min
= 1700000, .max
= 3500000 },
272 /* Pineview's Ncounter is a ring counter */
273 .n
= { .min
= 3, .max
= 6 },
274 .m
= { .min
= 2, .max
= 256 },
275 /* Pineview only has one combined m divider, which we treat as m2. */
276 .m1
= { .min
= 0, .max
= 0 },
277 .m2
= { .min
= 0, .max
= 254 },
278 .p
= { .min
= 5, .max
= 80 },
279 .p1
= { .min
= 1, .max
= 8 },
280 .p2
= { .dot_limit
= 200000,
281 .p2_slow
= 10, .p2_fast
= 5 },
284 static const intel_limit_t intel_limits_pineview_lvds
= {
285 .dot
= { .min
= 20000, .max
= 400000 },
286 .vco
= { .min
= 1700000, .max
= 3500000 },
287 .n
= { .min
= 3, .max
= 6 },
288 .m
= { .min
= 2, .max
= 256 },
289 .m1
= { .min
= 0, .max
= 0 },
290 .m2
= { .min
= 0, .max
= 254 },
291 .p
= { .min
= 7, .max
= 112 },
292 .p1
= { .min
= 1, .max
= 8 },
293 .p2
= { .dot_limit
= 112000,
294 .p2_slow
= 14, .p2_fast
= 14 },
297 /* Ironlake / Sandybridge
299 * We calculate clock using (register_value + 2) for N/M1/M2, so here
300 * the range value for them is (actual_value - 2).
302 static const intel_limit_t intel_limits_ironlake_dac
= {
303 .dot
= { .min
= 25000, .max
= 350000 },
304 .vco
= { .min
= 1760000, .max
= 3510000 },
305 .n
= { .min
= 1, .max
= 5 },
306 .m
= { .min
= 79, .max
= 127 },
307 .m1
= { .min
= 12, .max
= 22 },
308 .m2
= { .min
= 5, .max
= 9 },
309 .p
= { .min
= 5, .max
= 80 },
310 .p1
= { .min
= 1, .max
= 8 },
311 .p2
= { .dot_limit
= 225000,
312 .p2_slow
= 10, .p2_fast
= 5 },
315 static const intel_limit_t intel_limits_ironlake_single_lvds
= {
316 .dot
= { .min
= 25000, .max
= 350000 },
317 .vco
= { .min
= 1760000, .max
= 3510000 },
318 .n
= { .min
= 1, .max
= 3 },
319 .m
= { .min
= 79, .max
= 118 },
320 .m1
= { .min
= 12, .max
= 22 },
321 .m2
= { .min
= 5, .max
= 9 },
322 .p
= { .min
= 28, .max
= 112 },
323 .p1
= { .min
= 2, .max
= 8 },
324 .p2
= { .dot_limit
= 225000,
325 .p2_slow
= 14, .p2_fast
= 14 },
328 static const intel_limit_t intel_limits_ironlake_dual_lvds
= {
329 .dot
= { .min
= 25000, .max
= 350000 },
330 .vco
= { .min
= 1760000, .max
= 3510000 },
331 .n
= { .min
= 1, .max
= 3 },
332 .m
= { .min
= 79, .max
= 127 },
333 .m1
= { .min
= 12, .max
= 22 },
334 .m2
= { .min
= 5, .max
= 9 },
335 .p
= { .min
= 14, .max
= 56 },
336 .p1
= { .min
= 2, .max
= 8 },
337 .p2
= { .dot_limit
= 225000,
338 .p2_slow
= 7, .p2_fast
= 7 },
341 /* LVDS 100mhz refclk limits. */
342 static const intel_limit_t intel_limits_ironlake_single_lvds_100m
= {
343 .dot
= { .min
= 25000, .max
= 350000 },
344 .vco
= { .min
= 1760000, .max
= 3510000 },
345 .n
= { .min
= 1, .max
= 2 },
346 .m
= { .min
= 79, .max
= 126 },
347 .m1
= { .min
= 12, .max
= 22 },
348 .m2
= { .min
= 5, .max
= 9 },
349 .p
= { .min
= 28, .max
= 112 },
350 .p1
= { .min
= 2, .max
= 8 },
351 .p2
= { .dot_limit
= 225000,
352 .p2_slow
= 14, .p2_fast
= 14 },
355 static const intel_limit_t intel_limits_ironlake_dual_lvds_100m
= {
356 .dot
= { .min
= 25000, .max
= 350000 },
357 .vco
= { .min
= 1760000, .max
= 3510000 },
358 .n
= { .min
= 1, .max
= 3 },
359 .m
= { .min
= 79, .max
= 126 },
360 .m1
= { .min
= 12, .max
= 22 },
361 .m2
= { .min
= 5, .max
= 9 },
362 .p
= { .min
= 14, .max
= 42 },
363 .p1
= { .min
= 2, .max
= 6 },
364 .p2
= { .dot_limit
= 225000,
365 .p2_slow
= 7, .p2_fast
= 7 },
368 static const intel_limit_t intel_limits_vlv
= {
370 * These are the data rate limits (measured in fast clocks)
371 * since those are the strictest limits we have. The fast
372 * clock and actual rate limits are more relaxed, so checking
373 * them would make no difference.
375 .dot
= { .min
= 25000 * 5, .max
= 270000 * 5 },
376 .vco
= { .min
= 4000000, .max
= 6000000 },
377 .n
= { .min
= 1, .max
= 7 },
378 .m1
= { .min
= 2, .max
= 3 },
379 .m2
= { .min
= 11, .max
= 156 },
380 .p1
= { .min
= 2, .max
= 3 },
381 .p2
= { .p2_slow
= 2, .p2_fast
= 20 }, /* slow=min, fast=max */
384 static const intel_limit_t intel_limits_chv
= {
386 * These are the data rate limits (measured in fast clocks)
387 * since those are the strictest limits we have. The fast
388 * clock and actual rate limits are more relaxed, so checking
389 * them would make no difference.
391 .dot
= { .min
= 25000 * 5, .max
= 540000 * 5},
392 .vco
= { .min
= 4860000, .max
= 6700000 },
393 .n
= { .min
= 1, .max
= 1 },
394 .m1
= { .min
= 2, .max
= 2 },
395 .m2
= { .min
= 24 << 22, .max
= 175 << 22 },
396 .p1
= { .min
= 2, .max
= 4 },
397 .p2
= { .p2_slow
= 1, .p2_fast
= 14 },
400 static void vlv_clock(int refclk
, intel_clock_t
*clock
)
402 clock
->m
= clock
->m1
* clock
->m2
;
403 clock
->p
= clock
->p1
* clock
->p2
;
404 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
406 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
);
407 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
411 * Returns whether any output on the specified pipe is of the specified type
413 bool intel_pipe_has_type(struct intel_crtc
*crtc
, enum intel_output_type type
)
415 struct drm_device
*dev
= crtc
->base
.dev
;
416 struct intel_encoder
*encoder
;
418 for_each_encoder_on_crtc(dev
, &crtc
->base
, encoder
)
419 if (encoder
->type
== type
)
426 * Returns whether any output on the specified pipe will have the specified
427 * type after a staged modeset is complete, i.e., the same as
428 * intel_pipe_has_type() but looking at encoder->new_crtc instead of
431 static bool intel_pipe_will_have_type(struct intel_crtc
*crtc
, int type
)
433 struct drm_device
*dev
= crtc
->base
.dev
;
434 struct intel_encoder
*encoder
;
436 for_each_intel_encoder(dev
, encoder
)
437 if (encoder
->new_crtc
== crtc
&& encoder
->type
== type
)
443 static const intel_limit_t
*intel_ironlake_limit(struct intel_crtc
*crtc
,
446 struct drm_device
*dev
= crtc
->base
.dev
;
447 const intel_limit_t
*limit
;
449 if (intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_LVDS
)) {
450 if (intel_is_dual_link_lvds(dev
)) {
451 if (refclk
== 100000)
452 limit
= &intel_limits_ironlake_dual_lvds_100m
;
454 limit
= &intel_limits_ironlake_dual_lvds
;
456 if (refclk
== 100000)
457 limit
= &intel_limits_ironlake_single_lvds_100m
;
459 limit
= &intel_limits_ironlake_single_lvds
;
462 limit
= &intel_limits_ironlake_dac
;
467 static const intel_limit_t
*intel_g4x_limit(struct intel_crtc
*crtc
)
469 struct drm_device
*dev
= crtc
->base
.dev
;
470 const intel_limit_t
*limit
;
472 if (intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_LVDS
)) {
473 if (intel_is_dual_link_lvds(dev
))
474 limit
= &intel_limits_g4x_dual_channel_lvds
;
476 limit
= &intel_limits_g4x_single_channel_lvds
;
477 } else if (intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_HDMI
) ||
478 intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_ANALOG
)) {
479 limit
= &intel_limits_g4x_hdmi
;
480 } else if (intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_SDVO
)) {
481 limit
= &intel_limits_g4x_sdvo
;
482 } else /* The option is for other outputs */
483 limit
= &intel_limits_i9xx_sdvo
;
488 static const intel_limit_t
*intel_limit(struct intel_crtc
*crtc
, int refclk
)
490 struct drm_device
*dev
= crtc
->base
.dev
;
491 const intel_limit_t
*limit
;
493 if (HAS_PCH_SPLIT(dev
))
494 limit
= intel_ironlake_limit(crtc
, refclk
);
495 else if (IS_G4X(dev
)) {
496 limit
= intel_g4x_limit(crtc
);
497 } else if (IS_PINEVIEW(dev
)) {
498 if (intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_LVDS
))
499 limit
= &intel_limits_pineview_lvds
;
501 limit
= &intel_limits_pineview_sdvo
;
502 } else if (IS_CHERRYVIEW(dev
)) {
503 limit
= &intel_limits_chv
;
504 } else if (IS_VALLEYVIEW(dev
)) {
505 limit
= &intel_limits_vlv
;
506 } else if (!IS_GEN2(dev
)) {
507 if (intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_LVDS
))
508 limit
= &intel_limits_i9xx_lvds
;
510 limit
= &intel_limits_i9xx_sdvo
;
512 if (intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_LVDS
))
513 limit
= &intel_limits_i8xx_lvds
;
514 else if (intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_DVO
))
515 limit
= &intel_limits_i8xx_dvo
;
517 limit
= &intel_limits_i8xx_dac
;
522 /* m1 is reserved as 0 in Pineview, n is a ring counter */
523 static void pineview_clock(int refclk
, intel_clock_t
*clock
)
525 clock
->m
= clock
->m2
+ 2;
526 clock
->p
= clock
->p1
* clock
->p2
;
527 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
529 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
);
530 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
533 static uint32_t i9xx_dpll_compute_m(struct dpll
*dpll
)
535 return 5 * (dpll
->m1
+ 2) + (dpll
->m2
+ 2);
538 static void i9xx_clock(int refclk
, intel_clock_t
*clock
)
540 clock
->m
= i9xx_dpll_compute_m(clock
);
541 clock
->p
= clock
->p1
* clock
->p2
;
542 if (WARN_ON(clock
->n
+ 2 == 0 || clock
->p
== 0))
544 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
+ 2);
545 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
548 static void chv_clock(int refclk
, intel_clock_t
*clock
)
550 clock
->m
= clock
->m1
* clock
->m2
;
551 clock
->p
= clock
->p1
* clock
->p2
;
552 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
554 clock
->vco
= DIV_ROUND_CLOSEST_ULL((uint64_t)refclk
* clock
->m
,
556 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
559 #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
561 * Returns whether the given set of divisors are valid for a given refclk with
562 * the given connectors.
565 static bool intel_PLL_is_valid(struct drm_device
*dev
,
566 const intel_limit_t
*limit
,
567 const intel_clock_t
*clock
)
569 if (clock
->n
< limit
->n
.min
|| limit
->n
.max
< clock
->n
)
570 INTELPllInvalid("n out of range\n");
571 if (clock
->p1
< limit
->p1
.min
|| limit
->p1
.max
< clock
->p1
)
572 INTELPllInvalid("p1 out of range\n");
573 if (clock
->m2
< limit
->m2
.min
|| limit
->m2
.max
< clock
->m2
)
574 INTELPllInvalid("m2 out of range\n");
575 if (clock
->m1
< limit
->m1
.min
|| limit
->m1
.max
< clock
->m1
)
576 INTELPllInvalid("m1 out of range\n");
578 if (!IS_PINEVIEW(dev
) && !IS_VALLEYVIEW(dev
))
579 if (clock
->m1
<= clock
->m2
)
580 INTELPllInvalid("m1 <= m2\n");
582 if (!IS_VALLEYVIEW(dev
)) {
583 if (clock
->p
< limit
->p
.min
|| limit
->p
.max
< clock
->p
)
584 INTELPllInvalid("p out of range\n");
585 if (clock
->m
< limit
->m
.min
|| limit
->m
.max
< clock
->m
)
586 INTELPllInvalid("m out of range\n");
589 if (clock
->vco
< limit
->vco
.min
|| limit
->vco
.max
< clock
->vco
)
590 INTELPllInvalid("vco out of range\n");
591 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
592 * connector, etc., rather than just a single range.
594 if (clock
->dot
< limit
->dot
.min
|| limit
->dot
.max
< clock
->dot
)
595 INTELPllInvalid("dot out of range\n");
601 i9xx_find_best_dpll(const intel_limit_t
*limit
, struct intel_crtc
*crtc
,
602 int target
, int refclk
, intel_clock_t
*match_clock
,
603 intel_clock_t
*best_clock
)
605 struct drm_device
*dev
= crtc
->base
.dev
;
609 if (intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_LVDS
)) {
611 * For LVDS just rely on its current settings for dual-channel.
612 * We haven't figured out how to reliably set up different
613 * single/dual channel state, if we even can.
615 if (intel_is_dual_link_lvds(dev
))
616 clock
.p2
= limit
->p2
.p2_fast
;
618 clock
.p2
= limit
->p2
.p2_slow
;
620 if (target
< limit
->p2
.dot_limit
)
621 clock
.p2
= limit
->p2
.p2_slow
;
623 clock
.p2
= limit
->p2
.p2_fast
;
626 memset(best_clock
, 0, sizeof(*best_clock
));
628 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
630 for (clock
.m2
= limit
->m2
.min
;
631 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
632 if (clock
.m2
>= clock
.m1
)
634 for (clock
.n
= limit
->n
.min
;
635 clock
.n
<= limit
->n
.max
; clock
.n
++) {
636 for (clock
.p1
= limit
->p1
.min
;
637 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
640 i9xx_clock(refclk
, &clock
);
641 if (!intel_PLL_is_valid(dev
, limit
,
645 clock
.p
!= match_clock
->p
)
648 this_err
= abs(clock
.dot
- target
);
649 if (this_err
< err
) {
658 return (err
!= target
);
662 pnv_find_best_dpll(const intel_limit_t
*limit
, struct intel_crtc
*crtc
,
663 int target
, int refclk
, intel_clock_t
*match_clock
,
664 intel_clock_t
*best_clock
)
666 struct drm_device
*dev
= crtc
->base
.dev
;
670 if (intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_LVDS
)) {
672 * For LVDS just rely on its current settings for dual-channel.
673 * We haven't figured out how to reliably set up different
674 * single/dual channel state, if we even can.
676 if (intel_is_dual_link_lvds(dev
))
677 clock
.p2
= limit
->p2
.p2_fast
;
679 clock
.p2
= limit
->p2
.p2_slow
;
681 if (target
< limit
->p2
.dot_limit
)
682 clock
.p2
= limit
->p2
.p2_slow
;
684 clock
.p2
= limit
->p2
.p2_fast
;
687 memset(best_clock
, 0, sizeof(*best_clock
));
689 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
691 for (clock
.m2
= limit
->m2
.min
;
692 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
693 for (clock
.n
= limit
->n
.min
;
694 clock
.n
<= limit
->n
.max
; clock
.n
++) {
695 for (clock
.p1
= limit
->p1
.min
;
696 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
699 pineview_clock(refclk
, &clock
);
700 if (!intel_PLL_is_valid(dev
, limit
,
704 clock
.p
!= match_clock
->p
)
707 this_err
= abs(clock
.dot
- target
);
708 if (this_err
< err
) {
717 return (err
!= target
);
721 g4x_find_best_dpll(const intel_limit_t
*limit
, struct intel_crtc
*crtc
,
722 int target
, int refclk
, intel_clock_t
*match_clock
,
723 intel_clock_t
*best_clock
)
725 struct drm_device
*dev
= crtc
->base
.dev
;
729 /* approximately equals target * 0.00585 */
730 int err_most
= (target
>> 8) + (target
>> 9);
733 if (intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_LVDS
)) {
734 if (intel_is_dual_link_lvds(dev
))
735 clock
.p2
= limit
->p2
.p2_fast
;
737 clock
.p2
= limit
->p2
.p2_slow
;
739 if (target
< limit
->p2
.dot_limit
)
740 clock
.p2
= limit
->p2
.p2_slow
;
742 clock
.p2
= limit
->p2
.p2_fast
;
745 memset(best_clock
, 0, sizeof(*best_clock
));
746 max_n
= limit
->n
.max
;
747 /* based on hardware requirement, prefer smaller n to precision */
748 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
749 /* based on hardware requirement, prefere larger m1,m2 */
750 for (clock
.m1
= limit
->m1
.max
;
751 clock
.m1
>= limit
->m1
.min
; clock
.m1
--) {
752 for (clock
.m2
= limit
->m2
.max
;
753 clock
.m2
>= limit
->m2
.min
; clock
.m2
--) {
754 for (clock
.p1
= limit
->p1
.max
;
755 clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
758 i9xx_clock(refclk
, &clock
);
759 if (!intel_PLL_is_valid(dev
, limit
,
763 this_err
= abs(clock
.dot
- target
);
764 if (this_err
< err_most
) {
778 vlv_find_best_dpll(const intel_limit_t
*limit
, struct intel_crtc
*crtc
,
779 int target
, int refclk
, intel_clock_t
*match_clock
,
780 intel_clock_t
*best_clock
)
782 struct drm_device
*dev
= crtc
->base
.dev
;
784 unsigned int bestppm
= 1000000;
785 /* min update 19.2 MHz */
786 int max_n
= min(limit
->n
.max
, refclk
/ 19200);
789 target
*= 5; /* fast clock */
791 memset(best_clock
, 0, sizeof(*best_clock
));
793 /* based on hardware requirement, prefer smaller n to precision */
794 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
795 for (clock
.p1
= limit
->p1
.max
; clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
796 for (clock
.p2
= limit
->p2
.p2_fast
; clock
.p2
>= limit
->p2
.p2_slow
;
797 clock
.p2
-= clock
.p2
> 10 ? 2 : 1) {
798 clock
.p
= clock
.p1
* clock
.p2
;
799 /* based on hardware requirement, prefer bigger m1,m2 values */
800 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
; clock
.m1
++) {
801 unsigned int ppm
, diff
;
803 clock
.m2
= DIV_ROUND_CLOSEST(target
* clock
.p
* clock
.n
,
806 vlv_clock(refclk
, &clock
);
808 if (!intel_PLL_is_valid(dev
, limit
,
812 diff
= abs(clock
.dot
- target
);
813 ppm
= div_u64(1000000ULL * diff
, target
);
815 if (ppm
< 100 && clock
.p
> best_clock
->p
) {
821 if (bestppm
>= 10 && ppm
< bestppm
- 10) {
835 chv_find_best_dpll(const intel_limit_t
*limit
, struct intel_crtc
*crtc
,
836 int target
, int refclk
, intel_clock_t
*match_clock
,
837 intel_clock_t
*best_clock
)
839 struct drm_device
*dev
= crtc
->base
.dev
;
844 memset(best_clock
, 0, sizeof(*best_clock
));
847 * Based on hardware doc, the n always set to 1, and m1 always
848 * set to 2. If requires to support 200Mhz refclk, we need to
849 * revisit this because n may not 1 anymore.
851 clock
.n
= 1, clock
.m1
= 2;
852 target
*= 5; /* fast clock */
854 for (clock
.p1
= limit
->p1
.max
; clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
855 for (clock
.p2
= limit
->p2
.p2_fast
;
856 clock
.p2
>= limit
->p2
.p2_slow
;
857 clock
.p2
-= clock
.p2
> 10 ? 2 : 1) {
859 clock
.p
= clock
.p1
* clock
.p2
;
861 m2
= DIV_ROUND_CLOSEST_ULL(((uint64_t)target
* clock
.p
*
862 clock
.n
) << 22, refclk
* clock
.m1
);
864 if (m2
> INT_MAX
/clock
.m1
)
869 chv_clock(refclk
, &clock
);
871 if (!intel_PLL_is_valid(dev
, limit
, &clock
))
874 /* based on hardware requirement, prefer bigger p
876 if (clock
.p
> best_clock
->p
) {
886 bool intel_crtc_active(struct drm_crtc
*crtc
)
888 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
890 /* Be paranoid as we can arrive here with only partial
891 * state retrieved from the hardware during setup.
893 * We can ditch the adjusted_mode.crtc_clock check as soon
894 * as Haswell has gained clock readout/fastboot support.
896 * We can ditch the crtc->primary->fb check as soon as we can
897 * properly reconstruct framebuffers.
899 return intel_crtc
->active
&& crtc
->primary
->fb
&&
900 intel_crtc
->config
->base
.adjusted_mode
.crtc_clock
;
903 enum transcoder
intel_pipe_to_cpu_transcoder(struct drm_i915_private
*dev_priv
,
906 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
907 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
909 return intel_crtc
->config
->cpu_transcoder
;
912 static bool pipe_dsl_stopped(struct drm_device
*dev
, enum pipe pipe
)
914 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
915 u32 reg
= PIPEDSL(pipe
);
920 line_mask
= DSL_LINEMASK_GEN2
;
922 line_mask
= DSL_LINEMASK_GEN3
;
924 line1
= I915_READ(reg
) & line_mask
;
926 line2
= I915_READ(reg
) & line_mask
;
928 return line1
== line2
;
932 * intel_wait_for_pipe_off - wait for pipe to turn off
933 * @crtc: crtc whose pipe to wait for
935 * After disabling a pipe, we can't wait for vblank in the usual way,
936 * spinning on the vblank interrupt status bit, since we won't actually
937 * see an interrupt when the pipe is disabled.
940 * wait for the pipe register state bit to turn off
943 * wait for the display line value to settle (it usually
944 * ends up stopping at the start of the next frame).
947 static void intel_wait_for_pipe_off(struct intel_crtc
*crtc
)
949 struct drm_device
*dev
= crtc
->base
.dev
;
950 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
951 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
952 enum pipe pipe
= crtc
->pipe
;
954 if (INTEL_INFO(dev
)->gen
>= 4) {
955 int reg
= PIPECONF(cpu_transcoder
);
957 /* Wait for the Pipe State to go off */
958 if (wait_for((I915_READ(reg
) & I965_PIPECONF_ACTIVE
) == 0,
960 WARN(1, "pipe_off wait timed out\n");
962 /* Wait for the display line to settle */
963 if (wait_for(pipe_dsl_stopped(dev
, pipe
), 100))
964 WARN(1, "pipe_off wait timed out\n");
969 * ibx_digital_port_connected - is the specified port connected?
970 * @dev_priv: i915 private structure
971 * @port: the port to test
973 * Returns true if @port is connected, false otherwise.
975 bool ibx_digital_port_connected(struct drm_i915_private
*dev_priv
,
976 struct intel_digital_port
*port
)
980 if (HAS_PCH_IBX(dev_priv
->dev
)) {
981 switch (port
->port
) {
983 bit
= SDE_PORTB_HOTPLUG
;
986 bit
= SDE_PORTC_HOTPLUG
;
989 bit
= SDE_PORTD_HOTPLUG
;
995 switch (port
->port
) {
997 bit
= SDE_PORTB_HOTPLUG_CPT
;
1000 bit
= SDE_PORTC_HOTPLUG_CPT
;
1003 bit
= SDE_PORTD_HOTPLUG_CPT
;
1010 return I915_READ(SDEISR
) & bit
;
1013 static const char *state_string(bool enabled
)
1015 return enabled
? "on" : "off";
1018 /* Only for pre-ILK configs */
1019 void assert_pll(struct drm_i915_private
*dev_priv
,
1020 enum pipe pipe
, bool state
)
1027 val
= I915_READ(reg
);
1028 cur_state
= !!(val
& DPLL_VCO_ENABLE
);
1029 I915_STATE_WARN(cur_state
!= state
,
1030 "PLL state assertion failure (expected %s, current %s)\n",
1031 state_string(state
), state_string(cur_state
));
1034 /* XXX: the dsi pll is shared between MIPI DSI ports */
1035 static void assert_dsi_pll(struct drm_i915_private
*dev_priv
, bool state
)
1040 mutex_lock(&dev_priv
->dpio_lock
);
1041 val
= vlv_cck_read(dev_priv
, CCK_REG_DSI_PLL_CONTROL
);
1042 mutex_unlock(&dev_priv
->dpio_lock
);
1044 cur_state
= val
& DSI_PLL_VCO_EN
;
1045 I915_STATE_WARN(cur_state
!= state
,
1046 "DSI PLL state assertion failure (expected %s, current %s)\n",
1047 state_string(state
), state_string(cur_state
));
1049 #define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true)
1050 #define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false)
1052 struct intel_shared_dpll
*
1053 intel_crtc_to_shared_dpll(struct intel_crtc
*crtc
)
1055 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
1057 if (crtc
->config
->shared_dpll
< 0)
1060 return &dev_priv
->shared_dplls
[crtc
->config
->shared_dpll
];
1064 void assert_shared_dpll(struct drm_i915_private
*dev_priv
,
1065 struct intel_shared_dpll
*pll
,
1069 struct intel_dpll_hw_state hw_state
;
1072 "asserting DPLL %s with no DPLL\n", state_string(state
)))
1075 cur_state
= pll
->get_hw_state(dev_priv
, pll
, &hw_state
);
1076 I915_STATE_WARN(cur_state
!= state
,
1077 "%s assertion failure (expected %s, current %s)\n",
1078 pll
->name
, state_string(state
), state_string(cur_state
));
1081 static void assert_fdi_tx(struct drm_i915_private
*dev_priv
,
1082 enum pipe pipe
, bool state
)
1087 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1090 if (HAS_DDI(dev_priv
->dev
)) {
1091 /* DDI does not have a specific FDI_TX register */
1092 reg
= TRANS_DDI_FUNC_CTL(cpu_transcoder
);
1093 val
= I915_READ(reg
);
1094 cur_state
= !!(val
& TRANS_DDI_FUNC_ENABLE
);
1096 reg
= FDI_TX_CTL(pipe
);
1097 val
= I915_READ(reg
);
1098 cur_state
= !!(val
& FDI_TX_ENABLE
);
1100 I915_STATE_WARN(cur_state
!= state
,
1101 "FDI TX state assertion failure (expected %s, current %s)\n",
1102 state_string(state
), state_string(cur_state
));
1104 #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
1105 #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
1107 static void assert_fdi_rx(struct drm_i915_private
*dev_priv
,
1108 enum pipe pipe
, bool state
)
1114 reg
= FDI_RX_CTL(pipe
);
1115 val
= I915_READ(reg
);
1116 cur_state
= !!(val
& FDI_RX_ENABLE
);
1117 I915_STATE_WARN(cur_state
!= state
,
1118 "FDI RX state assertion failure (expected %s, current %s)\n",
1119 state_string(state
), state_string(cur_state
));
1121 #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
1122 #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
1124 static void assert_fdi_tx_pll_enabled(struct drm_i915_private
*dev_priv
,
1130 /* ILK FDI PLL is always enabled */
1131 if (INTEL_INFO(dev_priv
->dev
)->gen
== 5)
1134 /* On Haswell, DDI ports are responsible for the FDI PLL setup */
1135 if (HAS_DDI(dev_priv
->dev
))
1138 reg
= FDI_TX_CTL(pipe
);
1139 val
= I915_READ(reg
);
1140 I915_STATE_WARN(!(val
& FDI_TX_PLL_ENABLE
), "FDI TX PLL assertion failure, should be active but is disabled\n");
1143 void assert_fdi_rx_pll(struct drm_i915_private
*dev_priv
,
1144 enum pipe pipe
, bool state
)
1150 reg
= FDI_RX_CTL(pipe
);
1151 val
= I915_READ(reg
);
1152 cur_state
= !!(val
& FDI_RX_PLL_ENABLE
);
1153 I915_STATE_WARN(cur_state
!= state
,
1154 "FDI RX PLL assertion failure (expected %s, current %s)\n",
1155 state_string(state
), state_string(cur_state
));
1158 void assert_panel_unlocked(struct drm_i915_private
*dev_priv
,
1161 struct drm_device
*dev
= dev_priv
->dev
;
1164 enum pipe panel_pipe
= PIPE_A
;
1167 if (WARN_ON(HAS_DDI(dev
)))
1170 if (HAS_PCH_SPLIT(dev
)) {
1173 pp_reg
= PCH_PP_CONTROL
;
1174 port_sel
= I915_READ(PCH_PP_ON_DELAYS
) & PANEL_PORT_SELECT_MASK
;
1176 if (port_sel
== PANEL_PORT_SELECT_LVDS
&&
1177 I915_READ(PCH_LVDS
) & LVDS_PIPEB_SELECT
)
1178 panel_pipe
= PIPE_B
;
1179 /* XXX: else fix for eDP */
1180 } else if (IS_VALLEYVIEW(dev
)) {
1181 /* presumably write lock depends on pipe, not port select */
1182 pp_reg
= VLV_PIPE_PP_CONTROL(pipe
);
1185 pp_reg
= PP_CONTROL
;
1186 if (I915_READ(LVDS
) & LVDS_PIPEB_SELECT
)
1187 panel_pipe
= PIPE_B
;
1190 val
= I915_READ(pp_reg
);
1191 if (!(val
& PANEL_POWER_ON
) ||
1192 ((val
& PANEL_UNLOCK_MASK
) == PANEL_UNLOCK_REGS
))
1195 I915_STATE_WARN(panel_pipe
== pipe
&& locked
,
1196 "panel assertion failure, pipe %c regs locked\n",
1200 static void assert_cursor(struct drm_i915_private
*dev_priv
,
1201 enum pipe pipe
, bool state
)
1203 struct drm_device
*dev
= dev_priv
->dev
;
1206 if (IS_845G(dev
) || IS_I865G(dev
))
1207 cur_state
= I915_READ(_CURACNTR
) & CURSOR_ENABLE
;
1209 cur_state
= I915_READ(CURCNTR(pipe
)) & CURSOR_MODE
;
1211 I915_STATE_WARN(cur_state
!= state
,
1212 "cursor on pipe %c assertion failure (expected %s, current %s)\n",
1213 pipe_name(pipe
), state_string(state
), state_string(cur_state
));
1215 #define assert_cursor_enabled(d, p) assert_cursor(d, p, true)
1216 #define assert_cursor_disabled(d, p) assert_cursor(d, p, false)
1218 void assert_pipe(struct drm_i915_private
*dev_priv
,
1219 enum pipe pipe
, bool state
)
1224 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1227 /* if we need the pipe quirk it must be always on */
1228 if ((pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
1229 (pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
1232 if (!intel_display_power_is_enabled(dev_priv
,
1233 POWER_DOMAIN_TRANSCODER(cpu_transcoder
))) {
1236 reg
= PIPECONF(cpu_transcoder
);
1237 val
= I915_READ(reg
);
1238 cur_state
= !!(val
& PIPECONF_ENABLE
);
1241 I915_STATE_WARN(cur_state
!= state
,
1242 "pipe %c assertion failure (expected %s, current %s)\n",
1243 pipe_name(pipe
), state_string(state
), state_string(cur_state
));
1246 static void assert_plane(struct drm_i915_private
*dev_priv
,
1247 enum plane plane
, bool state
)
1253 reg
= DSPCNTR(plane
);
1254 val
= I915_READ(reg
);
1255 cur_state
= !!(val
& DISPLAY_PLANE_ENABLE
);
1256 I915_STATE_WARN(cur_state
!= state
,
1257 "plane %c assertion failure (expected %s, current %s)\n",
1258 plane_name(plane
), state_string(state
), state_string(cur_state
));
1261 #define assert_plane_enabled(d, p) assert_plane(d, p, true)
1262 #define assert_plane_disabled(d, p) assert_plane(d, p, false)
1264 static void assert_planes_disabled(struct drm_i915_private
*dev_priv
,
1267 struct drm_device
*dev
= dev_priv
->dev
;
1272 /* Primary planes are fixed to pipes on gen4+ */
1273 if (INTEL_INFO(dev
)->gen
>= 4) {
1274 reg
= DSPCNTR(pipe
);
1275 val
= I915_READ(reg
);
1276 I915_STATE_WARN(val
& DISPLAY_PLANE_ENABLE
,
1277 "plane %c assertion failure, should be disabled but not\n",
1282 /* Need to check both planes against the pipe */
1283 for_each_pipe(dev_priv
, i
) {
1285 val
= I915_READ(reg
);
1286 cur_pipe
= (val
& DISPPLANE_SEL_PIPE_MASK
) >>
1287 DISPPLANE_SEL_PIPE_SHIFT
;
1288 I915_STATE_WARN((val
& DISPLAY_PLANE_ENABLE
) && pipe
== cur_pipe
,
1289 "plane %c assertion failure, should be off on pipe %c but is still active\n",
1290 plane_name(i
), pipe_name(pipe
));
1294 static void assert_sprites_disabled(struct drm_i915_private
*dev_priv
,
1297 struct drm_device
*dev
= dev_priv
->dev
;
1301 if (INTEL_INFO(dev
)->gen
>= 9) {
1302 for_each_sprite(pipe
, sprite
) {
1303 val
= I915_READ(PLANE_CTL(pipe
, sprite
));
1304 I915_STATE_WARN(val
& PLANE_CTL_ENABLE
,
1305 "plane %d assertion failure, should be off on pipe %c but is still active\n",
1306 sprite
, pipe_name(pipe
));
1308 } else if (IS_VALLEYVIEW(dev
)) {
1309 for_each_sprite(pipe
, sprite
) {
1310 reg
= SPCNTR(pipe
, sprite
);
1311 val
= I915_READ(reg
);
1312 I915_STATE_WARN(val
& SP_ENABLE
,
1313 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1314 sprite_name(pipe
, sprite
), pipe_name(pipe
));
1316 } else if (INTEL_INFO(dev
)->gen
>= 7) {
1318 val
= I915_READ(reg
);
1319 I915_STATE_WARN(val
& SPRITE_ENABLE
,
1320 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1321 plane_name(pipe
), pipe_name(pipe
));
1322 } else if (INTEL_INFO(dev
)->gen
>= 5) {
1323 reg
= DVSCNTR(pipe
);
1324 val
= I915_READ(reg
);
1325 I915_STATE_WARN(val
& DVS_ENABLE
,
1326 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1327 plane_name(pipe
), pipe_name(pipe
));
1331 static void assert_vblank_disabled(struct drm_crtc
*crtc
)
1333 if (I915_STATE_WARN_ON(drm_crtc_vblank_get(crtc
) == 0))
1334 drm_crtc_vblank_put(crtc
);
1337 static void ibx_assert_pch_refclk_enabled(struct drm_i915_private
*dev_priv
)
1342 I915_STATE_WARN_ON(!(HAS_PCH_IBX(dev_priv
->dev
) || HAS_PCH_CPT(dev_priv
->dev
)));
1344 val
= I915_READ(PCH_DREF_CONTROL
);
1345 enabled
= !!(val
& (DREF_SSC_SOURCE_MASK
| DREF_NONSPREAD_SOURCE_MASK
|
1346 DREF_SUPERSPREAD_SOURCE_MASK
));
1347 I915_STATE_WARN(!enabled
, "PCH refclk assertion failure, should be active but is disabled\n");
1350 static void assert_pch_transcoder_disabled(struct drm_i915_private
*dev_priv
,
1357 reg
= PCH_TRANSCONF(pipe
);
1358 val
= I915_READ(reg
);
1359 enabled
= !!(val
& TRANS_ENABLE
);
1360 I915_STATE_WARN(enabled
,
1361 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1365 static bool dp_pipe_enabled(struct drm_i915_private
*dev_priv
,
1366 enum pipe pipe
, u32 port_sel
, u32 val
)
1368 if ((val
& DP_PORT_EN
) == 0)
1371 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1372 u32 trans_dp_ctl_reg
= TRANS_DP_CTL(pipe
);
1373 u32 trans_dp_ctl
= I915_READ(trans_dp_ctl_reg
);
1374 if ((trans_dp_ctl
& TRANS_DP_PORT_SEL_MASK
) != port_sel
)
1376 } else if (IS_CHERRYVIEW(dev_priv
->dev
)) {
1377 if ((val
& DP_PIPE_MASK_CHV
) != DP_PIPE_SELECT_CHV(pipe
))
1380 if ((val
& DP_PIPE_MASK
) != (pipe
<< 30))
1386 static bool hdmi_pipe_enabled(struct drm_i915_private
*dev_priv
,
1387 enum pipe pipe
, u32 val
)
1389 if ((val
& SDVO_ENABLE
) == 0)
1392 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1393 if ((val
& SDVO_PIPE_SEL_MASK_CPT
) != SDVO_PIPE_SEL_CPT(pipe
))
1395 } else if (IS_CHERRYVIEW(dev_priv
->dev
)) {
1396 if ((val
& SDVO_PIPE_SEL_MASK_CHV
) != SDVO_PIPE_SEL_CHV(pipe
))
1399 if ((val
& SDVO_PIPE_SEL_MASK
) != SDVO_PIPE_SEL(pipe
))
1405 static bool lvds_pipe_enabled(struct drm_i915_private
*dev_priv
,
1406 enum pipe pipe
, u32 val
)
1408 if ((val
& LVDS_PORT_EN
) == 0)
1411 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1412 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1415 if ((val
& LVDS_PIPE_MASK
) != LVDS_PIPE(pipe
))
1421 static bool adpa_pipe_enabled(struct drm_i915_private
*dev_priv
,
1422 enum pipe pipe
, u32 val
)
1424 if ((val
& ADPA_DAC_ENABLE
) == 0)
1426 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1427 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1430 if ((val
& ADPA_PIPE_SELECT_MASK
) != ADPA_PIPE_SELECT(pipe
))
1436 static void assert_pch_dp_disabled(struct drm_i915_private
*dev_priv
,
1437 enum pipe pipe
, int reg
, u32 port_sel
)
1439 u32 val
= I915_READ(reg
);
1440 I915_STATE_WARN(dp_pipe_enabled(dev_priv
, pipe
, port_sel
, val
),
1441 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
1442 reg
, pipe_name(pipe
));
1444 I915_STATE_WARN(HAS_PCH_IBX(dev_priv
->dev
) && (val
& DP_PORT_EN
) == 0
1445 && (val
& DP_PIPEB_SELECT
),
1446 "IBX PCH dp port still using transcoder B\n");
1449 static void assert_pch_hdmi_disabled(struct drm_i915_private
*dev_priv
,
1450 enum pipe pipe
, int reg
)
1452 u32 val
= I915_READ(reg
);
1453 I915_STATE_WARN(hdmi_pipe_enabled(dev_priv
, pipe
, val
),
1454 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
1455 reg
, pipe_name(pipe
));
1457 I915_STATE_WARN(HAS_PCH_IBX(dev_priv
->dev
) && (val
& SDVO_ENABLE
) == 0
1458 && (val
& SDVO_PIPE_B_SELECT
),
1459 "IBX PCH hdmi port still using transcoder B\n");
1462 static void assert_pch_ports_disabled(struct drm_i915_private
*dev_priv
,
1468 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_B
, TRANS_DP_PORT_SEL_B
);
1469 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_C
, TRANS_DP_PORT_SEL_C
);
1470 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_D
, TRANS_DP_PORT_SEL_D
);
1473 val
= I915_READ(reg
);
1474 I915_STATE_WARN(adpa_pipe_enabled(dev_priv
, pipe
, val
),
1475 "PCH VGA enabled on transcoder %c, should be disabled\n",
1479 val
= I915_READ(reg
);
1480 I915_STATE_WARN(lvds_pipe_enabled(dev_priv
, pipe
, val
),
1481 "PCH LVDS enabled on transcoder %c, should be disabled\n",
1484 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIB
);
1485 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIC
);
1486 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMID
);
1489 static void intel_init_dpio(struct drm_device
*dev
)
1491 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1493 if (!IS_VALLEYVIEW(dev
))
1497 * IOSF_PORT_DPIO is used for VLV x2 PHY (DP/HDMI B and C),
1498 * CHV x1 PHY (DP/HDMI D)
1499 * IOSF_PORT_DPIO_2 is used for CHV x2 PHY (DP/HDMI B and C)
1501 if (IS_CHERRYVIEW(dev
)) {
1502 DPIO_PHY_IOSF_PORT(DPIO_PHY0
) = IOSF_PORT_DPIO_2
;
1503 DPIO_PHY_IOSF_PORT(DPIO_PHY1
) = IOSF_PORT_DPIO
;
1505 DPIO_PHY_IOSF_PORT(DPIO_PHY0
) = IOSF_PORT_DPIO
;
1509 static void vlv_enable_pll(struct intel_crtc
*crtc
,
1510 const struct intel_crtc_state
*pipe_config
)
1512 struct drm_device
*dev
= crtc
->base
.dev
;
1513 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1514 int reg
= DPLL(crtc
->pipe
);
1515 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
1517 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1519 /* No really, not for ILK+ */
1520 BUG_ON(!IS_VALLEYVIEW(dev_priv
->dev
));
1522 /* PLL is protected by panel, make sure we can write it */
1523 if (IS_MOBILE(dev_priv
->dev
))
1524 assert_panel_unlocked(dev_priv
, crtc
->pipe
);
1526 I915_WRITE(reg
, dpll
);
1530 if (wait_for(((I915_READ(reg
) & DPLL_LOCK_VLV
) == DPLL_LOCK_VLV
), 1))
1531 DRM_ERROR("DPLL %d failed to lock\n", crtc
->pipe
);
1533 I915_WRITE(DPLL_MD(crtc
->pipe
), pipe_config
->dpll_hw_state
.dpll_md
);
1534 POSTING_READ(DPLL_MD(crtc
->pipe
));
1536 /* We do this three times for luck */
1537 I915_WRITE(reg
, dpll
);
1539 udelay(150); /* wait for warmup */
1540 I915_WRITE(reg
, dpll
);
1542 udelay(150); /* wait for warmup */
1543 I915_WRITE(reg
, dpll
);
1545 udelay(150); /* wait for warmup */
1548 static void chv_enable_pll(struct intel_crtc
*crtc
,
1549 const struct intel_crtc_state
*pipe_config
)
1551 struct drm_device
*dev
= crtc
->base
.dev
;
1552 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1553 int pipe
= crtc
->pipe
;
1554 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
1557 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1559 BUG_ON(!IS_CHERRYVIEW(dev_priv
->dev
));
1561 mutex_lock(&dev_priv
->dpio_lock
);
1563 /* Enable back the 10bit clock to display controller */
1564 tmp
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
));
1565 tmp
|= DPIO_DCLKP_EN
;
1566 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
), tmp
);
1569 * Need to wait > 100ns between dclkp clock enable bit and PLL enable.
1574 I915_WRITE(DPLL(pipe
), pipe_config
->dpll_hw_state
.dpll
);
1576 /* Check PLL is locked */
1577 if (wait_for(((I915_READ(DPLL(pipe
)) & DPLL_LOCK_VLV
) == DPLL_LOCK_VLV
), 1))
1578 DRM_ERROR("PLL %d failed to lock\n", pipe
);
1580 /* not sure when this should be written */
1581 I915_WRITE(DPLL_MD(pipe
), pipe_config
->dpll_hw_state
.dpll_md
);
1582 POSTING_READ(DPLL_MD(pipe
));
1584 mutex_unlock(&dev_priv
->dpio_lock
);
1587 static int intel_num_dvo_pipes(struct drm_device
*dev
)
1589 struct intel_crtc
*crtc
;
1592 for_each_intel_crtc(dev
, crtc
)
1593 count
+= crtc
->active
&&
1594 intel_pipe_has_type(crtc
, INTEL_OUTPUT_DVO
);
1599 static void i9xx_enable_pll(struct intel_crtc
*crtc
)
1601 struct drm_device
*dev
= crtc
->base
.dev
;
1602 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1603 int reg
= DPLL(crtc
->pipe
);
1604 u32 dpll
= crtc
->config
->dpll_hw_state
.dpll
;
1606 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1608 /* No really, not for ILK+ */
1609 BUG_ON(INTEL_INFO(dev
)->gen
>= 5);
1611 /* PLL is protected by panel, make sure we can write it */
1612 if (IS_MOBILE(dev
) && !IS_I830(dev
))
1613 assert_panel_unlocked(dev_priv
, crtc
->pipe
);
1615 /* Enable DVO 2x clock on both PLLs if necessary */
1616 if (IS_I830(dev
) && intel_num_dvo_pipes(dev
) > 0) {
1618 * It appears to be important that we don't enable this
1619 * for the current pipe before otherwise configuring the
1620 * PLL. No idea how this should be handled if multiple
1621 * DVO outputs are enabled simultaneosly.
1623 dpll
|= DPLL_DVO_2X_MODE
;
1624 I915_WRITE(DPLL(!crtc
->pipe
),
1625 I915_READ(DPLL(!crtc
->pipe
)) | DPLL_DVO_2X_MODE
);
1628 /* Wait for the clocks to stabilize. */
1632 if (INTEL_INFO(dev
)->gen
>= 4) {
1633 I915_WRITE(DPLL_MD(crtc
->pipe
),
1634 crtc
->config
->dpll_hw_state
.dpll_md
);
1636 /* The pixel multiplier can only be updated once the
1637 * DPLL is enabled and the clocks are stable.
1639 * So write it again.
1641 I915_WRITE(reg
, dpll
);
1644 /* We do this three times for luck */
1645 I915_WRITE(reg
, dpll
);
1647 udelay(150); /* wait for warmup */
1648 I915_WRITE(reg
, dpll
);
1650 udelay(150); /* wait for warmup */
1651 I915_WRITE(reg
, dpll
);
1653 udelay(150); /* wait for warmup */
1657 * i9xx_disable_pll - disable a PLL
1658 * @dev_priv: i915 private structure
1659 * @pipe: pipe PLL to disable
1661 * Disable the PLL for @pipe, making sure the pipe is off first.
1663 * Note! This is for pre-ILK only.
1665 static void i9xx_disable_pll(struct intel_crtc
*crtc
)
1667 struct drm_device
*dev
= crtc
->base
.dev
;
1668 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1669 enum pipe pipe
= crtc
->pipe
;
1671 /* Disable DVO 2x clock on both PLLs if necessary */
1673 intel_pipe_has_type(crtc
, INTEL_OUTPUT_DVO
) &&
1674 intel_num_dvo_pipes(dev
) == 1) {
1675 I915_WRITE(DPLL(PIPE_B
),
1676 I915_READ(DPLL(PIPE_B
)) & ~DPLL_DVO_2X_MODE
);
1677 I915_WRITE(DPLL(PIPE_A
),
1678 I915_READ(DPLL(PIPE_A
)) & ~DPLL_DVO_2X_MODE
);
1681 /* Don't disable pipe or pipe PLLs if needed */
1682 if ((pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
1683 (pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
1686 /* Make sure the pipe isn't still relying on us */
1687 assert_pipe_disabled(dev_priv
, pipe
);
1689 I915_WRITE(DPLL(pipe
), 0);
1690 POSTING_READ(DPLL(pipe
));
1693 static void vlv_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1697 /* Make sure the pipe isn't still relying on us */
1698 assert_pipe_disabled(dev_priv
, pipe
);
1701 * Leave integrated clock source and reference clock enabled for pipe B.
1702 * The latter is needed for VGA hotplug / manual detection.
1705 val
= DPLL_INTEGRATED_CRI_CLK_VLV
| DPLL_REFA_CLK_ENABLE_VLV
;
1706 I915_WRITE(DPLL(pipe
), val
);
1707 POSTING_READ(DPLL(pipe
));
1711 static void chv_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1713 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
1716 /* Make sure the pipe isn't still relying on us */
1717 assert_pipe_disabled(dev_priv
, pipe
);
1719 /* Set PLL en = 0 */
1720 val
= DPLL_SSC_REF_CLOCK_CHV
| DPLL_REFA_CLK_ENABLE_VLV
;
1722 val
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
1723 I915_WRITE(DPLL(pipe
), val
);
1724 POSTING_READ(DPLL(pipe
));
1726 mutex_lock(&dev_priv
->dpio_lock
);
1728 /* Disable 10bit clock to display controller */
1729 val
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
));
1730 val
&= ~DPIO_DCLKP_EN
;
1731 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
), val
);
1733 /* disable left/right clock distribution */
1734 if (pipe
!= PIPE_B
) {
1735 val
= vlv_dpio_read(dev_priv
, pipe
, _CHV_CMN_DW5_CH0
);
1736 val
&= ~(CHV_BUFLEFTENA1_MASK
| CHV_BUFRIGHTENA1_MASK
);
1737 vlv_dpio_write(dev_priv
, pipe
, _CHV_CMN_DW5_CH0
, val
);
1739 val
= vlv_dpio_read(dev_priv
, pipe
, _CHV_CMN_DW1_CH1
);
1740 val
&= ~(CHV_BUFLEFTENA2_MASK
| CHV_BUFRIGHTENA2_MASK
);
1741 vlv_dpio_write(dev_priv
, pipe
, _CHV_CMN_DW1_CH1
, val
);
1744 mutex_unlock(&dev_priv
->dpio_lock
);
1747 void vlv_wait_port_ready(struct drm_i915_private
*dev_priv
,
1748 struct intel_digital_port
*dport
)
1753 switch (dport
->port
) {
1755 port_mask
= DPLL_PORTB_READY_MASK
;
1759 port_mask
= DPLL_PORTC_READY_MASK
;
1763 port_mask
= DPLL_PORTD_READY_MASK
;
1764 dpll_reg
= DPIO_PHY_STATUS
;
1770 if (wait_for((I915_READ(dpll_reg
) & port_mask
) == 0, 1000))
1771 WARN(1, "timed out waiting for port %c ready: 0x%08x\n",
1772 port_name(dport
->port
), I915_READ(dpll_reg
));
1775 static void intel_prepare_shared_dpll(struct intel_crtc
*crtc
)
1777 struct drm_device
*dev
= crtc
->base
.dev
;
1778 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1779 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
1781 if (WARN_ON(pll
== NULL
))
1784 WARN_ON(!pll
->config
.crtc_mask
);
1785 if (pll
->active
== 0) {
1786 DRM_DEBUG_DRIVER("setting up %s\n", pll
->name
);
1788 assert_shared_dpll_disabled(dev_priv
, pll
);
1790 pll
->mode_set(dev_priv
, pll
);
1795 * intel_enable_shared_dpll - enable PCH PLL
1796 * @dev_priv: i915 private structure
1797 * @pipe: pipe PLL to enable
1799 * The PCH PLL needs to be enabled before the PCH transcoder, since it
1800 * drives the transcoder clock.
1802 static void intel_enable_shared_dpll(struct intel_crtc
*crtc
)
1804 struct drm_device
*dev
= crtc
->base
.dev
;
1805 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1806 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
1808 if (WARN_ON(pll
== NULL
))
1811 if (WARN_ON(pll
->config
.crtc_mask
== 0))
1814 DRM_DEBUG_KMS("enable %s (active %d, on? %d) for crtc %d\n",
1815 pll
->name
, pll
->active
, pll
->on
,
1816 crtc
->base
.base
.id
);
1818 if (pll
->active
++) {
1820 assert_shared_dpll_enabled(dev_priv
, pll
);
1825 intel_display_power_get(dev_priv
, POWER_DOMAIN_PLLS
);
1827 DRM_DEBUG_KMS("enabling %s\n", pll
->name
);
1828 pll
->enable(dev_priv
, pll
);
1832 static void intel_disable_shared_dpll(struct intel_crtc
*crtc
)
1834 struct drm_device
*dev
= crtc
->base
.dev
;
1835 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1836 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
1838 /* PCH only available on ILK+ */
1839 BUG_ON(INTEL_INFO(dev
)->gen
< 5);
1840 if (WARN_ON(pll
== NULL
))
1843 if (WARN_ON(pll
->config
.crtc_mask
== 0))
1846 DRM_DEBUG_KMS("disable %s (active %d, on? %d) for crtc %d\n",
1847 pll
->name
, pll
->active
, pll
->on
,
1848 crtc
->base
.base
.id
);
1850 if (WARN_ON(pll
->active
== 0)) {
1851 assert_shared_dpll_disabled(dev_priv
, pll
);
1855 assert_shared_dpll_enabled(dev_priv
, pll
);
1860 DRM_DEBUG_KMS("disabling %s\n", pll
->name
);
1861 pll
->disable(dev_priv
, pll
);
1864 intel_display_power_put(dev_priv
, POWER_DOMAIN_PLLS
);
1867 static void ironlake_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1870 struct drm_device
*dev
= dev_priv
->dev
;
1871 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
1872 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
1873 uint32_t reg
, val
, pipeconf_val
;
1875 /* PCH only available on ILK+ */
1876 BUG_ON(!HAS_PCH_SPLIT(dev
));
1878 /* Make sure PCH DPLL is enabled */
1879 assert_shared_dpll_enabled(dev_priv
,
1880 intel_crtc_to_shared_dpll(intel_crtc
));
1882 /* FDI must be feeding us bits for PCH ports */
1883 assert_fdi_tx_enabled(dev_priv
, pipe
);
1884 assert_fdi_rx_enabled(dev_priv
, pipe
);
1886 if (HAS_PCH_CPT(dev
)) {
1887 /* Workaround: Set the timing override bit before enabling the
1888 * pch transcoder. */
1889 reg
= TRANS_CHICKEN2(pipe
);
1890 val
= I915_READ(reg
);
1891 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
1892 I915_WRITE(reg
, val
);
1895 reg
= PCH_TRANSCONF(pipe
);
1896 val
= I915_READ(reg
);
1897 pipeconf_val
= I915_READ(PIPECONF(pipe
));
1899 if (HAS_PCH_IBX(dev_priv
->dev
)) {
1901 * make the BPC in transcoder be consistent with
1902 * that in pipeconf reg.
1904 val
&= ~PIPECONF_BPC_MASK
;
1905 val
|= pipeconf_val
& PIPECONF_BPC_MASK
;
1908 val
&= ~TRANS_INTERLACE_MASK
;
1909 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK
) == PIPECONF_INTERLACED_ILK
)
1910 if (HAS_PCH_IBX(dev_priv
->dev
) &&
1911 intel_pipe_has_type(intel_crtc
, INTEL_OUTPUT_SDVO
))
1912 val
|= TRANS_LEGACY_INTERLACED_ILK
;
1914 val
|= TRANS_INTERLACED
;
1916 val
|= TRANS_PROGRESSIVE
;
1918 I915_WRITE(reg
, val
| TRANS_ENABLE
);
1919 if (wait_for(I915_READ(reg
) & TRANS_STATE_ENABLE
, 100))
1920 DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe
));
1923 static void lpt_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1924 enum transcoder cpu_transcoder
)
1926 u32 val
, pipeconf_val
;
1928 /* PCH only available on ILK+ */
1929 BUG_ON(!HAS_PCH_SPLIT(dev_priv
->dev
));
1931 /* FDI must be feeding us bits for PCH ports */
1932 assert_fdi_tx_enabled(dev_priv
, (enum pipe
) cpu_transcoder
);
1933 assert_fdi_rx_enabled(dev_priv
, TRANSCODER_A
);
1935 /* Workaround: set timing override bit. */
1936 val
= I915_READ(_TRANSA_CHICKEN2
);
1937 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
1938 I915_WRITE(_TRANSA_CHICKEN2
, val
);
1941 pipeconf_val
= I915_READ(PIPECONF(cpu_transcoder
));
1943 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK_HSW
) ==
1944 PIPECONF_INTERLACED_ILK
)
1945 val
|= TRANS_INTERLACED
;
1947 val
|= TRANS_PROGRESSIVE
;
1949 I915_WRITE(LPT_TRANSCONF
, val
);
1950 if (wait_for(I915_READ(LPT_TRANSCONF
) & TRANS_STATE_ENABLE
, 100))
1951 DRM_ERROR("Failed to enable PCH transcoder\n");
1954 static void ironlake_disable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1957 struct drm_device
*dev
= dev_priv
->dev
;
1960 /* FDI relies on the transcoder */
1961 assert_fdi_tx_disabled(dev_priv
, pipe
);
1962 assert_fdi_rx_disabled(dev_priv
, pipe
);
1964 /* Ports must be off as well */
1965 assert_pch_ports_disabled(dev_priv
, pipe
);
1967 reg
= PCH_TRANSCONF(pipe
);
1968 val
= I915_READ(reg
);
1969 val
&= ~TRANS_ENABLE
;
1970 I915_WRITE(reg
, val
);
1971 /* wait for PCH transcoder off, transcoder state */
1972 if (wait_for((I915_READ(reg
) & TRANS_STATE_ENABLE
) == 0, 50))
1973 DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe
));
1975 if (!HAS_PCH_IBX(dev
)) {
1976 /* Workaround: Clear the timing override chicken bit again. */
1977 reg
= TRANS_CHICKEN2(pipe
);
1978 val
= I915_READ(reg
);
1979 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
1980 I915_WRITE(reg
, val
);
1984 static void lpt_disable_pch_transcoder(struct drm_i915_private
*dev_priv
)
1988 val
= I915_READ(LPT_TRANSCONF
);
1989 val
&= ~TRANS_ENABLE
;
1990 I915_WRITE(LPT_TRANSCONF
, val
);
1991 /* wait for PCH transcoder off, transcoder state */
1992 if (wait_for((I915_READ(LPT_TRANSCONF
) & TRANS_STATE_ENABLE
) == 0, 50))
1993 DRM_ERROR("Failed to disable PCH transcoder\n");
1995 /* Workaround: clear timing override bit. */
1996 val
= I915_READ(_TRANSA_CHICKEN2
);
1997 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
1998 I915_WRITE(_TRANSA_CHICKEN2
, val
);
2002 * intel_enable_pipe - enable a pipe, asserting requirements
2003 * @crtc: crtc responsible for the pipe
2005 * Enable @crtc's pipe, making sure that various hardware specific requirements
2006 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
2008 static void intel_enable_pipe(struct intel_crtc
*crtc
)
2010 struct drm_device
*dev
= crtc
->base
.dev
;
2011 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2012 enum pipe pipe
= crtc
->pipe
;
2013 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
2015 enum pipe pch_transcoder
;
2019 assert_planes_disabled(dev_priv
, pipe
);
2020 assert_cursor_disabled(dev_priv
, pipe
);
2021 assert_sprites_disabled(dev_priv
, pipe
);
2023 if (HAS_PCH_LPT(dev_priv
->dev
))
2024 pch_transcoder
= TRANSCODER_A
;
2026 pch_transcoder
= pipe
;
2029 * A pipe without a PLL won't actually be able to drive bits from
2030 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
2033 if (!HAS_PCH_SPLIT(dev_priv
->dev
))
2034 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DSI
))
2035 assert_dsi_pll_enabled(dev_priv
);
2037 assert_pll_enabled(dev_priv
, pipe
);
2039 if (crtc
->config
->has_pch_encoder
) {
2040 /* if driving the PCH, we need FDI enabled */
2041 assert_fdi_rx_pll_enabled(dev_priv
, pch_transcoder
);
2042 assert_fdi_tx_pll_enabled(dev_priv
,
2043 (enum pipe
) cpu_transcoder
);
2045 /* FIXME: assert CPU port conditions for SNB+ */
2048 reg
= PIPECONF(cpu_transcoder
);
2049 val
= I915_READ(reg
);
2050 if (val
& PIPECONF_ENABLE
) {
2051 WARN_ON(!((pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
2052 (pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
)));
2056 I915_WRITE(reg
, val
| PIPECONF_ENABLE
);
2061 * intel_disable_pipe - disable a pipe, asserting requirements
2062 * @crtc: crtc whose pipes is to be disabled
2064 * Disable the pipe of @crtc, making sure that various hardware
2065 * specific requirements are met, if applicable, e.g. plane
2066 * disabled, panel fitter off, etc.
2068 * Will wait until the pipe has shut down before returning.
2070 static void intel_disable_pipe(struct intel_crtc
*crtc
)
2072 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
2073 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
2074 enum pipe pipe
= crtc
->pipe
;
2079 * Make sure planes won't keep trying to pump pixels to us,
2080 * or we might hang the display.
2082 assert_planes_disabled(dev_priv
, pipe
);
2083 assert_cursor_disabled(dev_priv
, pipe
);
2084 assert_sprites_disabled(dev_priv
, pipe
);
2086 reg
= PIPECONF(cpu_transcoder
);
2087 val
= I915_READ(reg
);
2088 if ((val
& PIPECONF_ENABLE
) == 0)
2092 * Double wide has implications for planes
2093 * so best keep it disabled when not needed.
2095 if (crtc
->config
->double_wide
)
2096 val
&= ~PIPECONF_DOUBLE_WIDE
;
2098 /* Don't disable pipe or pipe PLLs if needed */
2099 if (!(pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) &&
2100 !(pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
2101 val
&= ~PIPECONF_ENABLE
;
2103 I915_WRITE(reg
, val
);
2104 if ((val
& PIPECONF_ENABLE
) == 0)
2105 intel_wait_for_pipe_off(crtc
);
2109 * Plane regs are double buffered, going from enabled->disabled needs a
2110 * trigger in order to latch. The display address reg provides this.
2112 void intel_flush_primary_plane(struct drm_i915_private
*dev_priv
,
2115 struct drm_device
*dev
= dev_priv
->dev
;
2116 u32 reg
= INTEL_INFO(dev
)->gen
>= 4 ? DSPSURF(plane
) : DSPADDR(plane
);
2118 I915_WRITE(reg
, I915_READ(reg
));
2123 * intel_enable_primary_hw_plane - enable the primary plane on a given pipe
2124 * @plane: plane to be enabled
2125 * @crtc: crtc for the plane
2127 * Enable @plane on @crtc, making sure that the pipe is running first.
2129 static void intel_enable_primary_hw_plane(struct drm_plane
*plane
,
2130 struct drm_crtc
*crtc
)
2132 struct drm_device
*dev
= plane
->dev
;
2133 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2134 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2136 /* If the pipe isn't enabled, we can't pump pixels and may hang */
2137 assert_pipe_enabled(dev_priv
, intel_crtc
->pipe
);
2139 if (intel_crtc
->primary_enabled
)
2142 intel_crtc
->primary_enabled
= true;
2144 dev_priv
->display
.update_primary_plane(crtc
, plane
->fb
,
2148 * BDW signals flip done immediately if the plane
2149 * is disabled, even if the plane enable is already
2150 * armed to occur at the next vblank :(
2152 if (IS_BROADWELL(dev
))
2153 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
2157 * intel_disable_primary_hw_plane - disable the primary hardware plane
2158 * @plane: plane to be disabled
2159 * @crtc: crtc for the plane
2161 * Disable @plane on @crtc, making sure that the pipe is running first.
2163 static void intel_disable_primary_hw_plane(struct drm_plane
*plane
,
2164 struct drm_crtc
*crtc
)
2166 struct drm_device
*dev
= plane
->dev
;
2167 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2168 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2170 if (WARN_ON(!intel_crtc
->active
))
2173 if (!intel_crtc
->primary_enabled
)
2176 intel_crtc
->primary_enabled
= false;
2178 dev_priv
->display
.update_primary_plane(crtc
, plane
->fb
,
2182 static bool need_vtd_wa(struct drm_device
*dev
)
2184 #ifdef CONFIG_INTEL_IOMMU
2185 if (INTEL_INFO(dev
)->gen
>= 6 && intel_iommu_gfx_mapped
)
2191 static int intel_align_height(struct drm_device
*dev
, int height
, bool tiled
)
2195 tile_height
= tiled
? (IS_GEN2(dev
) ? 16 : 8) : 1;
2196 return ALIGN(height
, tile_height
);
2200 intel_pin_and_fence_fb_obj(struct drm_plane
*plane
,
2201 struct drm_framebuffer
*fb
,
2202 struct intel_engine_cs
*pipelined
)
2204 struct drm_device
*dev
= fb
->dev
;
2205 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2206 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
2210 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
2212 switch (obj
->tiling_mode
) {
2213 case I915_TILING_NONE
:
2214 if (INTEL_INFO(dev
)->gen
>= 9)
2215 alignment
= 256 * 1024;
2216 else if (IS_BROADWATER(dev
) || IS_CRESTLINE(dev
))
2217 alignment
= 128 * 1024;
2218 else if (INTEL_INFO(dev
)->gen
>= 4)
2219 alignment
= 4 * 1024;
2221 alignment
= 64 * 1024;
2224 if (INTEL_INFO(dev
)->gen
>= 9)
2225 alignment
= 256 * 1024;
2227 /* pin() will align the object as required by fence */
2232 WARN(1, "Y tiled bo slipped through, driver bug!\n");
2238 /* Note that the w/a also requires 64 PTE of padding following the
2239 * bo. We currently fill all unused PTE with the shadow page and so
2240 * we should always have valid PTE following the scanout preventing
2243 if (need_vtd_wa(dev
) && alignment
< 256 * 1024)
2244 alignment
= 256 * 1024;
2247 * Global gtt pte registers are special registers which actually forward
2248 * writes to a chunk of system memory. Which means that there is no risk
2249 * that the register values disappear as soon as we call
2250 * intel_runtime_pm_put(), so it is correct to wrap only the
2251 * pin/unpin/fence and not more.
2253 intel_runtime_pm_get(dev_priv
);
2255 dev_priv
->mm
.interruptible
= false;
2256 ret
= i915_gem_object_pin_to_display_plane(obj
, alignment
, pipelined
);
2258 goto err_interruptible
;
2260 /* Install a fence for tiled scan-out. Pre-i965 always needs a
2261 * fence, whereas 965+ only requires a fence if using
2262 * framebuffer compression. For simplicity, we always install
2263 * a fence as the cost is not that onerous.
2265 ret
= i915_gem_object_get_fence(obj
);
2269 i915_gem_object_pin_fence(obj
);
2271 dev_priv
->mm
.interruptible
= true;
2272 intel_runtime_pm_put(dev_priv
);
2276 i915_gem_object_unpin_from_display_plane(obj
);
2278 dev_priv
->mm
.interruptible
= true;
2279 intel_runtime_pm_put(dev_priv
);
2283 void intel_unpin_fb_obj(struct drm_i915_gem_object
*obj
)
2285 WARN_ON(!mutex_is_locked(&obj
->base
.dev
->struct_mutex
));
2287 i915_gem_object_unpin_fence(obj
);
2288 i915_gem_object_unpin_from_display_plane(obj
);
2291 /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel
2292 * is assumed to be a power-of-two. */
2293 unsigned long intel_gen4_compute_page_offset(int *x
, int *y
,
2294 unsigned int tiling_mode
,
2298 if (tiling_mode
!= I915_TILING_NONE
) {
2299 unsigned int tile_rows
, tiles
;
2304 tiles
= *x
/ (512/cpp
);
2307 return tile_rows
* pitch
* 8 + tiles
* 4096;
2309 unsigned int offset
;
2311 offset
= *y
* pitch
+ *x
* cpp
;
2313 *x
= (offset
& 4095) / cpp
;
2314 return offset
& -4096;
2318 int intel_format_to_fourcc(int format
)
2321 case DISPPLANE_8BPP
:
2322 return DRM_FORMAT_C8
;
2323 case DISPPLANE_BGRX555
:
2324 return DRM_FORMAT_XRGB1555
;
2325 case DISPPLANE_BGRX565
:
2326 return DRM_FORMAT_RGB565
;
2328 case DISPPLANE_BGRX888
:
2329 return DRM_FORMAT_XRGB8888
;
2330 case DISPPLANE_RGBX888
:
2331 return DRM_FORMAT_XBGR8888
;
2332 case DISPPLANE_BGRX101010
:
2333 return DRM_FORMAT_XRGB2101010
;
2334 case DISPPLANE_RGBX101010
:
2335 return DRM_FORMAT_XBGR2101010
;
2339 static bool intel_alloc_plane_obj(struct intel_crtc
*crtc
,
2340 struct intel_plane_config
*plane_config
)
2342 struct drm_device
*dev
= crtc
->base
.dev
;
2343 struct drm_i915_gem_object
*obj
= NULL
;
2344 struct drm_mode_fb_cmd2 mode_cmd
= { 0 };
2345 u32 base
= plane_config
->base
;
2347 if (plane_config
->size
== 0)
2350 obj
= i915_gem_object_create_stolen_for_preallocated(dev
, base
, base
,
2351 plane_config
->size
);
2355 if (plane_config
->tiled
) {
2356 obj
->tiling_mode
= I915_TILING_X
;
2357 obj
->stride
= crtc
->base
.primary
->fb
->pitches
[0];
2360 mode_cmd
.pixel_format
= crtc
->base
.primary
->fb
->pixel_format
;
2361 mode_cmd
.width
= crtc
->base
.primary
->fb
->width
;
2362 mode_cmd
.height
= crtc
->base
.primary
->fb
->height
;
2363 mode_cmd
.pitches
[0] = crtc
->base
.primary
->fb
->pitches
[0];
2365 mutex_lock(&dev
->struct_mutex
);
2367 if (intel_framebuffer_init(dev
, to_intel_framebuffer(crtc
->base
.primary
->fb
),
2369 DRM_DEBUG_KMS("intel fb init failed\n");
2373 obj
->frontbuffer_bits
= INTEL_FRONTBUFFER_PRIMARY(crtc
->pipe
);
2374 mutex_unlock(&dev
->struct_mutex
);
2376 DRM_DEBUG_KMS("plane fb obj %p\n", obj
);
2380 drm_gem_object_unreference(&obj
->base
);
2381 mutex_unlock(&dev
->struct_mutex
);
2385 static void intel_find_plane_obj(struct intel_crtc
*intel_crtc
,
2386 struct intel_plane_config
*plane_config
)
2388 struct drm_device
*dev
= intel_crtc
->base
.dev
;
2389 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2391 struct intel_crtc
*i
;
2392 struct drm_i915_gem_object
*obj
;
2394 if (!intel_crtc
->base
.primary
->fb
)
2397 if (intel_alloc_plane_obj(intel_crtc
, plane_config
))
2400 kfree(intel_crtc
->base
.primary
->fb
);
2401 intel_crtc
->base
.primary
->fb
= NULL
;
2404 * Failed to alloc the obj, check to see if we should share
2405 * an fb with another CRTC instead
2407 for_each_crtc(dev
, c
) {
2408 i
= to_intel_crtc(c
);
2410 if (c
== &intel_crtc
->base
)
2416 obj
= intel_fb_obj(c
->primary
->fb
);
2420 if (i915_gem_obj_ggtt_offset(obj
) == plane_config
->base
) {
2421 if (obj
->tiling_mode
!= I915_TILING_NONE
)
2422 dev_priv
->preserve_bios_swizzle
= true;
2424 drm_framebuffer_reference(c
->primary
->fb
);
2425 intel_crtc
->base
.primary
->fb
= c
->primary
->fb
;
2426 obj
->frontbuffer_bits
|= INTEL_FRONTBUFFER_PRIMARY(intel_crtc
->pipe
);
2432 static void i9xx_update_primary_plane(struct drm_crtc
*crtc
,
2433 struct drm_framebuffer
*fb
,
2436 struct drm_device
*dev
= crtc
->dev
;
2437 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2438 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2439 struct drm_i915_gem_object
*obj
;
2440 int plane
= intel_crtc
->plane
;
2441 unsigned long linear_offset
;
2443 u32 reg
= DSPCNTR(plane
);
2446 if (!intel_crtc
->primary_enabled
) {
2448 if (INTEL_INFO(dev
)->gen
>= 4)
2449 I915_WRITE(DSPSURF(plane
), 0);
2451 I915_WRITE(DSPADDR(plane
), 0);
2456 obj
= intel_fb_obj(fb
);
2457 if (WARN_ON(obj
== NULL
))
2460 pixel_size
= drm_format_plane_cpp(fb
->pixel_format
, 0);
2462 dspcntr
= DISPPLANE_GAMMA_ENABLE
;
2464 dspcntr
|= DISPLAY_PLANE_ENABLE
;
2466 if (INTEL_INFO(dev
)->gen
< 4) {
2467 if (intel_crtc
->pipe
== PIPE_B
)
2468 dspcntr
|= DISPPLANE_SEL_PIPE_B
;
2470 /* pipesrc and dspsize control the size that is scaled from,
2471 * which should always be the user's requested size.
2473 I915_WRITE(DSPSIZE(plane
),
2474 ((intel_crtc
->config
->pipe_src_h
- 1) << 16) |
2475 (intel_crtc
->config
->pipe_src_w
- 1));
2476 I915_WRITE(DSPPOS(plane
), 0);
2477 } else if (IS_CHERRYVIEW(dev
) && plane
== PLANE_B
) {
2478 I915_WRITE(PRIMSIZE(plane
),
2479 ((intel_crtc
->config
->pipe_src_h
- 1) << 16) |
2480 (intel_crtc
->config
->pipe_src_w
- 1));
2481 I915_WRITE(PRIMPOS(plane
), 0);
2482 I915_WRITE(PRIMCNSTALPHA(plane
), 0);
2485 switch (fb
->pixel_format
) {
2487 dspcntr
|= DISPPLANE_8BPP
;
2489 case DRM_FORMAT_XRGB1555
:
2490 case DRM_FORMAT_ARGB1555
:
2491 dspcntr
|= DISPPLANE_BGRX555
;
2493 case DRM_FORMAT_RGB565
:
2494 dspcntr
|= DISPPLANE_BGRX565
;
2496 case DRM_FORMAT_XRGB8888
:
2497 case DRM_FORMAT_ARGB8888
:
2498 dspcntr
|= DISPPLANE_BGRX888
;
2500 case DRM_FORMAT_XBGR8888
:
2501 case DRM_FORMAT_ABGR8888
:
2502 dspcntr
|= DISPPLANE_RGBX888
;
2504 case DRM_FORMAT_XRGB2101010
:
2505 case DRM_FORMAT_ARGB2101010
:
2506 dspcntr
|= DISPPLANE_BGRX101010
;
2508 case DRM_FORMAT_XBGR2101010
:
2509 case DRM_FORMAT_ABGR2101010
:
2510 dspcntr
|= DISPPLANE_RGBX101010
;
2516 if (INTEL_INFO(dev
)->gen
>= 4 &&
2517 obj
->tiling_mode
!= I915_TILING_NONE
)
2518 dspcntr
|= DISPPLANE_TILED
;
2521 dspcntr
|= DISPPLANE_TRICKLE_FEED_DISABLE
;
2523 linear_offset
= y
* fb
->pitches
[0] + x
* pixel_size
;
2525 if (INTEL_INFO(dev
)->gen
>= 4) {
2526 intel_crtc
->dspaddr_offset
=
2527 intel_gen4_compute_page_offset(&x
, &y
, obj
->tiling_mode
,
2530 linear_offset
-= intel_crtc
->dspaddr_offset
;
2532 intel_crtc
->dspaddr_offset
= linear_offset
;
2535 if (to_intel_plane(crtc
->primary
)->rotation
== BIT(DRM_ROTATE_180
)) {
2536 dspcntr
|= DISPPLANE_ROTATE_180
;
2538 x
+= (intel_crtc
->config
->pipe_src_w
- 1);
2539 y
+= (intel_crtc
->config
->pipe_src_h
- 1);
2541 /* Finding the last pixel of the last line of the display
2542 data and adding to linear_offset*/
2544 (intel_crtc
->config
->pipe_src_h
- 1) * fb
->pitches
[0] +
2545 (intel_crtc
->config
->pipe_src_w
- 1) * pixel_size
;
2548 I915_WRITE(reg
, dspcntr
);
2550 DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
2551 i915_gem_obj_ggtt_offset(obj
), linear_offset
, x
, y
,
2553 I915_WRITE(DSPSTRIDE(plane
), fb
->pitches
[0]);
2554 if (INTEL_INFO(dev
)->gen
>= 4) {
2555 I915_WRITE(DSPSURF(plane
),
2556 i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
);
2557 I915_WRITE(DSPTILEOFF(plane
), (y
<< 16) | x
);
2558 I915_WRITE(DSPLINOFF(plane
), linear_offset
);
2560 I915_WRITE(DSPADDR(plane
), i915_gem_obj_ggtt_offset(obj
) + linear_offset
);
2564 static void ironlake_update_primary_plane(struct drm_crtc
*crtc
,
2565 struct drm_framebuffer
*fb
,
2568 struct drm_device
*dev
= crtc
->dev
;
2569 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2570 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2571 struct drm_i915_gem_object
*obj
;
2572 int plane
= intel_crtc
->plane
;
2573 unsigned long linear_offset
;
2575 u32 reg
= DSPCNTR(plane
);
2578 if (!intel_crtc
->primary_enabled
) {
2580 I915_WRITE(DSPSURF(plane
), 0);
2585 obj
= intel_fb_obj(fb
);
2586 if (WARN_ON(obj
== NULL
))
2589 pixel_size
= drm_format_plane_cpp(fb
->pixel_format
, 0);
2591 dspcntr
= DISPPLANE_GAMMA_ENABLE
;
2593 dspcntr
|= DISPLAY_PLANE_ENABLE
;
2595 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
2596 dspcntr
|= DISPPLANE_PIPE_CSC_ENABLE
;
2598 switch (fb
->pixel_format
) {
2600 dspcntr
|= DISPPLANE_8BPP
;
2602 case DRM_FORMAT_RGB565
:
2603 dspcntr
|= DISPPLANE_BGRX565
;
2605 case DRM_FORMAT_XRGB8888
:
2606 case DRM_FORMAT_ARGB8888
:
2607 dspcntr
|= DISPPLANE_BGRX888
;
2609 case DRM_FORMAT_XBGR8888
:
2610 case DRM_FORMAT_ABGR8888
:
2611 dspcntr
|= DISPPLANE_RGBX888
;
2613 case DRM_FORMAT_XRGB2101010
:
2614 case DRM_FORMAT_ARGB2101010
:
2615 dspcntr
|= DISPPLANE_BGRX101010
;
2617 case DRM_FORMAT_XBGR2101010
:
2618 case DRM_FORMAT_ABGR2101010
:
2619 dspcntr
|= DISPPLANE_RGBX101010
;
2625 if (obj
->tiling_mode
!= I915_TILING_NONE
)
2626 dspcntr
|= DISPPLANE_TILED
;
2628 if (!IS_HASWELL(dev
) && !IS_BROADWELL(dev
))
2629 dspcntr
|= DISPPLANE_TRICKLE_FEED_DISABLE
;
2631 linear_offset
= y
* fb
->pitches
[0] + x
* pixel_size
;
2632 intel_crtc
->dspaddr_offset
=
2633 intel_gen4_compute_page_offset(&x
, &y
, obj
->tiling_mode
,
2636 linear_offset
-= intel_crtc
->dspaddr_offset
;
2637 if (to_intel_plane(crtc
->primary
)->rotation
== BIT(DRM_ROTATE_180
)) {
2638 dspcntr
|= DISPPLANE_ROTATE_180
;
2640 if (!IS_HASWELL(dev
) && !IS_BROADWELL(dev
)) {
2641 x
+= (intel_crtc
->config
->pipe_src_w
- 1);
2642 y
+= (intel_crtc
->config
->pipe_src_h
- 1);
2644 /* Finding the last pixel of the last line of the display
2645 data and adding to linear_offset*/
2647 (intel_crtc
->config
->pipe_src_h
- 1) * fb
->pitches
[0] +
2648 (intel_crtc
->config
->pipe_src_w
- 1) * pixel_size
;
2652 I915_WRITE(reg
, dspcntr
);
2654 DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
2655 i915_gem_obj_ggtt_offset(obj
), linear_offset
, x
, y
,
2657 I915_WRITE(DSPSTRIDE(plane
), fb
->pitches
[0]);
2658 I915_WRITE(DSPSURF(plane
),
2659 i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
);
2660 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
2661 I915_WRITE(DSPOFFSET(plane
), (y
<< 16) | x
);
2663 I915_WRITE(DSPTILEOFF(plane
), (y
<< 16) | x
);
2664 I915_WRITE(DSPLINOFF(plane
), linear_offset
);
2669 static void skylake_update_primary_plane(struct drm_crtc
*crtc
,
2670 struct drm_framebuffer
*fb
,
2673 struct drm_device
*dev
= crtc
->dev
;
2674 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2675 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2676 struct intel_framebuffer
*intel_fb
;
2677 struct drm_i915_gem_object
*obj
;
2678 int pipe
= intel_crtc
->pipe
;
2679 u32 plane_ctl
, stride
;
2681 if (!intel_crtc
->primary_enabled
) {
2682 I915_WRITE(PLANE_CTL(pipe
, 0), 0);
2683 I915_WRITE(PLANE_SURF(pipe
, 0), 0);
2684 POSTING_READ(PLANE_CTL(pipe
, 0));
2688 plane_ctl
= PLANE_CTL_ENABLE
|
2689 PLANE_CTL_PIPE_GAMMA_ENABLE
|
2690 PLANE_CTL_PIPE_CSC_ENABLE
;
2692 switch (fb
->pixel_format
) {
2693 case DRM_FORMAT_RGB565
:
2694 plane_ctl
|= PLANE_CTL_FORMAT_RGB_565
;
2696 case DRM_FORMAT_XRGB8888
:
2697 plane_ctl
|= PLANE_CTL_FORMAT_XRGB_8888
;
2699 case DRM_FORMAT_XBGR8888
:
2700 plane_ctl
|= PLANE_CTL_ORDER_RGBX
;
2701 plane_ctl
|= PLANE_CTL_FORMAT_XRGB_8888
;
2703 case DRM_FORMAT_XRGB2101010
:
2704 plane_ctl
|= PLANE_CTL_FORMAT_XRGB_2101010
;
2706 case DRM_FORMAT_XBGR2101010
:
2707 plane_ctl
|= PLANE_CTL_ORDER_RGBX
;
2708 plane_ctl
|= PLANE_CTL_FORMAT_XRGB_2101010
;
2714 intel_fb
= to_intel_framebuffer(fb
);
2715 obj
= intel_fb
->obj
;
2718 * The stride is either expressed as a multiple of 64 bytes chunks for
2719 * linear buffers or in number of tiles for tiled buffers.
2721 switch (obj
->tiling_mode
) {
2722 case I915_TILING_NONE
:
2723 stride
= fb
->pitches
[0] >> 6;
2726 plane_ctl
|= PLANE_CTL_TILED_X
;
2727 stride
= fb
->pitches
[0] >> 9;
2733 plane_ctl
|= PLANE_CTL_PLANE_GAMMA_DISABLE
;
2734 if (to_intel_plane(crtc
->primary
)->rotation
== BIT(DRM_ROTATE_180
))
2735 plane_ctl
|= PLANE_CTL_ROTATE_180
;
2737 I915_WRITE(PLANE_CTL(pipe
, 0), plane_ctl
);
2739 DRM_DEBUG_KMS("Writing base %08lX %d,%d,%d,%d pitch=%d\n",
2740 i915_gem_obj_ggtt_offset(obj
),
2741 x
, y
, fb
->width
, fb
->height
,
2744 I915_WRITE(PLANE_POS(pipe
, 0), 0);
2745 I915_WRITE(PLANE_OFFSET(pipe
, 0), (y
<< 16) | x
);
2746 I915_WRITE(PLANE_SIZE(pipe
, 0),
2747 (intel_crtc
->config
->pipe_src_h
- 1) << 16 |
2748 (intel_crtc
->config
->pipe_src_w
- 1));
2749 I915_WRITE(PLANE_STRIDE(pipe
, 0), stride
);
2750 I915_WRITE(PLANE_SURF(pipe
, 0), i915_gem_obj_ggtt_offset(obj
));
2752 POSTING_READ(PLANE_SURF(pipe
, 0));
2755 /* Assume fb object is pinned & idle & fenced and just update base pointers */
2757 intel_pipe_set_base_atomic(struct drm_crtc
*crtc
, struct drm_framebuffer
*fb
,
2758 int x
, int y
, enum mode_set_atomic state
)
2760 struct drm_device
*dev
= crtc
->dev
;
2761 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2763 if (dev_priv
->display
.disable_fbc
)
2764 dev_priv
->display
.disable_fbc(dev
);
2766 dev_priv
->display
.update_primary_plane(crtc
, fb
, x
, y
);
2771 static void intel_complete_page_flips(struct drm_device
*dev
)
2773 struct drm_crtc
*crtc
;
2775 for_each_crtc(dev
, crtc
) {
2776 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2777 enum plane plane
= intel_crtc
->plane
;
2779 intel_prepare_page_flip(dev
, plane
);
2780 intel_finish_page_flip_plane(dev
, plane
);
2784 static void intel_update_primary_planes(struct drm_device
*dev
)
2786 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2787 struct drm_crtc
*crtc
;
2789 for_each_crtc(dev
, crtc
) {
2790 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2792 drm_modeset_lock(&crtc
->mutex
, NULL
);
2794 * FIXME: Once we have proper support for primary planes (and
2795 * disabling them without disabling the entire crtc) allow again
2796 * a NULL crtc->primary->fb.
2798 if (intel_crtc
->active
&& crtc
->primary
->fb
)
2799 dev_priv
->display
.update_primary_plane(crtc
,
2803 drm_modeset_unlock(&crtc
->mutex
);
2807 void intel_prepare_reset(struct drm_device
*dev
)
2809 struct drm_i915_private
*dev_priv
= to_i915(dev
);
2810 struct intel_crtc
*crtc
;
2812 /* no reset support for gen2 */
2816 /* reset doesn't touch the display */
2817 if (INTEL_INFO(dev
)->gen
>= 5 || IS_G4X(dev
))
2820 drm_modeset_lock_all(dev
);
2823 * Disabling the crtcs gracefully seems nicer. Also the
2824 * g33 docs say we should at least disable all the planes.
2826 for_each_intel_crtc(dev
, crtc
) {
2828 dev_priv
->display
.crtc_disable(&crtc
->base
);
2832 void intel_finish_reset(struct drm_device
*dev
)
2834 struct drm_i915_private
*dev_priv
= to_i915(dev
);
2837 * Flips in the rings will be nuked by the reset,
2838 * so complete all pending flips so that user space
2839 * will get its events and not get stuck.
2841 intel_complete_page_flips(dev
);
2843 /* no reset support for gen2 */
2847 /* reset doesn't touch the display */
2848 if (INTEL_INFO(dev
)->gen
>= 5 || IS_G4X(dev
)) {
2850 * Flips in the rings have been nuked by the reset,
2851 * so update the base address of all primary
2852 * planes to the the last fb to make sure we're
2853 * showing the correct fb after a reset.
2855 intel_update_primary_planes(dev
);
2860 * The display has been reset as well,
2861 * so need a full re-initialization.
2863 intel_runtime_pm_disable_interrupts(dev_priv
);
2864 intel_runtime_pm_enable_interrupts(dev_priv
);
2866 intel_modeset_init_hw(dev
);
2868 spin_lock_irq(&dev_priv
->irq_lock
);
2869 if (dev_priv
->display
.hpd_irq_setup
)
2870 dev_priv
->display
.hpd_irq_setup(dev
);
2871 spin_unlock_irq(&dev_priv
->irq_lock
);
2873 intel_modeset_setup_hw_state(dev
, true);
2875 intel_hpd_init(dev_priv
);
2877 drm_modeset_unlock_all(dev
);
2881 intel_finish_fb(struct drm_framebuffer
*old_fb
)
2883 struct drm_i915_gem_object
*obj
= intel_fb_obj(old_fb
);
2884 struct drm_i915_private
*dev_priv
= obj
->base
.dev
->dev_private
;
2885 bool was_interruptible
= dev_priv
->mm
.interruptible
;
2888 /* Big Hammer, we also need to ensure that any pending
2889 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
2890 * current scanout is retired before unpinning the old
2893 * This should only fail upon a hung GPU, in which case we
2894 * can safely continue.
2896 dev_priv
->mm
.interruptible
= false;
2897 ret
= i915_gem_object_finish_gpu(obj
);
2898 dev_priv
->mm
.interruptible
= was_interruptible
;
2903 static bool intel_crtc_has_pending_flip(struct drm_crtc
*crtc
)
2905 struct drm_device
*dev
= crtc
->dev
;
2906 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2907 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2910 if (i915_reset_in_progress(&dev_priv
->gpu_error
) ||
2911 intel_crtc
->reset_counter
!= atomic_read(&dev_priv
->gpu_error
.reset_counter
))
2914 spin_lock_irq(&dev
->event_lock
);
2915 pending
= to_intel_crtc(crtc
)->unpin_work
!= NULL
;
2916 spin_unlock_irq(&dev
->event_lock
);
2921 static void intel_update_pipe_size(struct intel_crtc
*crtc
)
2923 struct drm_device
*dev
= crtc
->base
.dev
;
2924 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2925 const struct drm_display_mode
*adjusted_mode
;
2931 * Update pipe size and adjust fitter if needed: the reason for this is
2932 * that in compute_mode_changes we check the native mode (not the pfit
2933 * mode) to see if we can flip rather than do a full mode set. In the
2934 * fastboot case, we'll flip, but if we don't update the pipesrc and
2935 * pfit state, we'll end up with a big fb scanned out into the wrong
2938 * To fix this properly, we need to hoist the checks up into
2939 * compute_mode_changes (or above), check the actual pfit state and
2940 * whether the platform allows pfit disable with pipe active, and only
2941 * then update the pipesrc and pfit state, even on the flip path.
2944 adjusted_mode
= &crtc
->config
->base
.adjusted_mode
;
2946 I915_WRITE(PIPESRC(crtc
->pipe
),
2947 ((adjusted_mode
->crtc_hdisplay
- 1) << 16) |
2948 (adjusted_mode
->crtc_vdisplay
- 1));
2949 if (!crtc
->config
->pch_pfit
.enabled
&&
2950 (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) ||
2951 intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
))) {
2952 I915_WRITE(PF_CTL(crtc
->pipe
), 0);
2953 I915_WRITE(PF_WIN_POS(crtc
->pipe
), 0);
2954 I915_WRITE(PF_WIN_SZ(crtc
->pipe
), 0);
2956 crtc
->config
->pipe_src_w
= adjusted_mode
->crtc_hdisplay
;
2957 crtc
->config
->pipe_src_h
= adjusted_mode
->crtc_vdisplay
;
2960 static void intel_fdi_normal_train(struct drm_crtc
*crtc
)
2962 struct drm_device
*dev
= crtc
->dev
;
2963 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2964 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2965 int pipe
= intel_crtc
->pipe
;
2968 /* enable normal train */
2969 reg
= FDI_TX_CTL(pipe
);
2970 temp
= I915_READ(reg
);
2971 if (IS_IVYBRIDGE(dev
)) {
2972 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
2973 temp
|= FDI_LINK_TRAIN_NONE_IVB
| FDI_TX_ENHANCE_FRAME_ENABLE
;
2975 temp
&= ~FDI_LINK_TRAIN_NONE
;
2976 temp
|= FDI_LINK_TRAIN_NONE
| FDI_TX_ENHANCE_FRAME_ENABLE
;
2978 I915_WRITE(reg
, temp
);
2980 reg
= FDI_RX_CTL(pipe
);
2981 temp
= I915_READ(reg
);
2982 if (HAS_PCH_CPT(dev
)) {
2983 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2984 temp
|= FDI_LINK_TRAIN_NORMAL_CPT
;
2986 temp
&= ~FDI_LINK_TRAIN_NONE
;
2987 temp
|= FDI_LINK_TRAIN_NONE
;
2989 I915_WRITE(reg
, temp
| FDI_RX_ENHANCE_FRAME_ENABLE
);
2991 /* wait one idle pattern time */
2995 /* IVB wants error correction enabled */
2996 if (IS_IVYBRIDGE(dev
))
2997 I915_WRITE(reg
, I915_READ(reg
) | FDI_FS_ERRC_ENABLE
|
2998 FDI_FE_ERRC_ENABLE
);
3001 static bool pipe_has_enabled_pch(struct intel_crtc
*crtc
)
3003 return crtc
->base
.enabled
&& crtc
->active
&&
3004 crtc
->config
->has_pch_encoder
;
3007 static void ivb_modeset_global_resources(struct drm_device
*dev
)
3009 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3010 struct intel_crtc
*pipe_B_crtc
=
3011 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[PIPE_B
]);
3012 struct intel_crtc
*pipe_C_crtc
=
3013 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[PIPE_C
]);
3017 * When everything is off disable fdi C so that we could enable fdi B
3018 * with all lanes. Note that we don't care about enabled pipes without
3019 * an enabled pch encoder.
3021 if (!pipe_has_enabled_pch(pipe_B_crtc
) &&
3022 !pipe_has_enabled_pch(pipe_C_crtc
)) {
3023 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B
)) & FDI_RX_ENABLE
);
3024 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C
)) & FDI_RX_ENABLE
);
3026 temp
= I915_READ(SOUTH_CHICKEN1
);
3027 temp
&= ~FDI_BC_BIFURCATION_SELECT
;
3028 DRM_DEBUG_KMS("disabling fdi C rx\n");
3029 I915_WRITE(SOUTH_CHICKEN1
, temp
);
3033 /* The FDI link training functions for ILK/Ibexpeak. */
3034 static void ironlake_fdi_link_train(struct drm_crtc
*crtc
)
3036 struct drm_device
*dev
= crtc
->dev
;
3037 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3038 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3039 int pipe
= intel_crtc
->pipe
;
3040 u32 reg
, temp
, tries
;
3042 /* FDI needs bits from pipe first */
3043 assert_pipe_enabled(dev_priv
, pipe
);
3045 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3047 reg
= FDI_RX_IMR(pipe
);
3048 temp
= I915_READ(reg
);
3049 temp
&= ~FDI_RX_SYMBOL_LOCK
;
3050 temp
&= ~FDI_RX_BIT_LOCK
;
3051 I915_WRITE(reg
, temp
);
3055 /* enable CPU FDI TX and PCH FDI RX */
3056 reg
= FDI_TX_CTL(pipe
);
3057 temp
= I915_READ(reg
);
3058 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
3059 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
->fdi_lanes
);
3060 temp
&= ~FDI_LINK_TRAIN_NONE
;
3061 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3062 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
3064 reg
= FDI_RX_CTL(pipe
);
3065 temp
= I915_READ(reg
);
3066 temp
&= ~FDI_LINK_TRAIN_NONE
;
3067 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3068 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
3073 /* Ironlake workaround, enable clock pointer after FDI enable*/
3074 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
3075 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
|
3076 FDI_RX_PHASE_SYNC_POINTER_EN
);
3078 reg
= FDI_RX_IIR(pipe
);
3079 for (tries
= 0; tries
< 5; tries
++) {
3080 temp
= I915_READ(reg
);
3081 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3083 if ((temp
& FDI_RX_BIT_LOCK
)) {
3084 DRM_DEBUG_KMS("FDI train 1 done.\n");
3085 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
3090 DRM_ERROR("FDI train 1 fail!\n");
3093 reg
= FDI_TX_CTL(pipe
);
3094 temp
= I915_READ(reg
);
3095 temp
&= ~FDI_LINK_TRAIN_NONE
;
3096 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3097 I915_WRITE(reg
, temp
);
3099 reg
= FDI_RX_CTL(pipe
);
3100 temp
= I915_READ(reg
);
3101 temp
&= ~FDI_LINK_TRAIN_NONE
;
3102 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3103 I915_WRITE(reg
, temp
);
3108 reg
= FDI_RX_IIR(pipe
);
3109 for (tries
= 0; tries
< 5; tries
++) {
3110 temp
= I915_READ(reg
);
3111 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3113 if (temp
& FDI_RX_SYMBOL_LOCK
) {
3114 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3115 DRM_DEBUG_KMS("FDI train 2 done.\n");
3120 DRM_ERROR("FDI train 2 fail!\n");
3122 DRM_DEBUG_KMS("FDI train done\n");
3126 static const int snb_b_fdi_train_param
[] = {
3127 FDI_LINK_TRAIN_400MV_0DB_SNB_B
,
3128 FDI_LINK_TRAIN_400MV_6DB_SNB_B
,
3129 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B
,
3130 FDI_LINK_TRAIN_800MV_0DB_SNB_B
,
3133 /* The FDI link training functions for SNB/Cougarpoint. */
3134 static void gen6_fdi_link_train(struct drm_crtc
*crtc
)
3136 struct drm_device
*dev
= crtc
->dev
;
3137 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3138 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3139 int pipe
= intel_crtc
->pipe
;
3140 u32 reg
, temp
, i
, retry
;
3142 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3144 reg
= FDI_RX_IMR(pipe
);
3145 temp
= I915_READ(reg
);
3146 temp
&= ~FDI_RX_SYMBOL_LOCK
;
3147 temp
&= ~FDI_RX_BIT_LOCK
;
3148 I915_WRITE(reg
, temp
);
3153 /* enable CPU FDI TX and PCH FDI RX */
3154 reg
= FDI_TX_CTL(pipe
);
3155 temp
= I915_READ(reg
);
3156 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
3157 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
->fdi_lanes
);
3158 temp
&= ~FDI_LINK_TRAIN_NONE
;
3159 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3160 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3162 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
3163 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
3165 I915_WRITE(FDI_RX_MISC(pipe
),
3166 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
3168 reg
= FDI_RX_CTL(pipe
);
3169 temp
= I915_READ(reg
);
3170 if (HAS_PCH_CPT(dev
)) {
3171 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3172 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
3174 temp
&= ~FDI_LINK_TRAIN_NONE
;
3175 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3177 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
3182 for (i
= 0; i
< 4; i
++) {
3183 reg
= FDI_TX_CTL(pipe
);
3184 temp
= I915_READ(reg
);
3185 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3186 temp
|= snb_b_fdi_train_param
[i
];
3187 I915_WRITE(reg
, temp
);
3192 for (retry
= 0; retry
< 5; retry
++) {
3193 reg
= FDI_RX_IIR(pipe
);
3194 temp
= I915_READ(reg
);
3195 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3196 if (temp
& FDI_RX_BIT_LOCK
) {
3197 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
3198 DRM_DEBUG_KMS("FDI train 1 done.\n");
3207 DRM_ERROR("FDI train 1 fail!\n");
3210 reg
= FDI_TX_CTL(pipe
);
3211 temp
= I915_READ(reg
);
3212 temp
&= ~FDI_LINK_TRAIN_NONE
;
3213 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3215 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3217 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
3219 I915_WRITE(reg
, temp
);
3221 reg
= FDI_RX_CTL(pipe
);
3222 temp
= I915_READ(reg
);
3223 if (HAS_PCH_CPT(dev
)) {
3224 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3225 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
3227 temp
&= ~FDI_LINK_TRAIN_NONE
;
3228 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3230 I915_WRITE(reg
, temp
);
3235 for (i
= 0; i
< 4; i
++) {
3236 reg
= FDI_TX_CTL(pipe
);
3237 temp
= I915_READ(reg
);
3238 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3239 temp
|= snb_b_fdi_train_param
[i
];
3240 I915_WRITE(reg
, temp
);
3245 for (retry
= 0; retry
< 5; retry
++) {
3246 reg
= FDI_RX_IIR(pipe
);
3247 temp
= I915_READ(reg
);
3248 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3249 if (temp
& FDI_RX_SYMBOL_LOCK
) {
3250 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3251 DRM_DEBUG_KMS("FDI train 2 done.\n");
3260 DRM_ERROR("FDI train 2 fail!\n");
3262 DRM_DEBUG_KMS("FDI train done.\n");
3265 /* Manual link training for Ivy Bridge A0 parts */
3266 static void ivb_manual_fdi_link_train(struct drm_crtc
*crtc
)
3268 struct drm_device
*dev
= crtc
->dev
;
3269 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3270 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3271 int pipe
= intel_crtc
->pipe
;
3272 u32 reg
, temp
, i
, j
;
3274 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3276 reg
= FDI_RX_IMR(pipe
);
3277 temp
= I915_READ(reg
);
3278 temp
&= ~FDI_RX_SYMBOL_LOCK
;
3279 temp
&= ~FDI_RX_BIT_LOCK
;
3280 I915_WRITE(reg
, temp
);
3285 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
3286 I915_READ(FDI_RX_IIR(pipe
)));
3288 /* Try each vswing and preemphasis setting twice before moving on */
3289 for (j
= 0; j
< ARRAY_SIZE(snb_b_fdi_train_param
) * 2; j
++) {
3290 /* disable first in case we need to retry */
3291 reg
= FDI_TX_CTL(pipe
);
3292 temp
= I915_READ(reg
);
3293 temp
&= ~(FDI_LINK_TRAIN_AUTO
| FDI_LINK_TRAIN_NONE_IVB
);
3294 temp
&= ~FDI_TX_ENABLE
;
3295 I915_WRITE(reg
, temp
);
3297 reg
= FDI_RX_CTL(pipe
);
3298 temp
= I915_READ(reg
);
3299 temp
&= ~FDI_LINK_TRAIN_AUTO
;
3300 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3301 temp
&= ~FDI_RX_ENABLE
;
3302 I915_WRITE(reg
, temp
);
3304 /* enable CPU FDI TX and PCH FDI RX */
3305 reg
= FDI_TX_CTL(pipe
);
3306 temp
= I915_READ(reg
);
3307 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
3308 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
->fdi_lanes
);
3309 temp
|= FDI_LINK_TRAIN_PATTERN_1_IVB
;
3310 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3311 temp
|= snb_b_fdi_train_param
[j
/2];
3312 temp
|= FDI_COMPOSITE_SYNC
;
3313 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
3315 I915_WRITE(FDI_RX_MISC(pipe
),
3316 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
3318 reg
= FDI_RX_CTL(pipe
);
3319 temp
= I915_READ(reg
);
3320 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
3321 temp
|= FDI_COMPOSITE_SYNC
;
3322 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
3325 udelay(1); /* should be 0.5us */
3327 for (i
= 0; i
< 4; i
++) {
3328 reg
= FDI_RX_IIR(pipe
);
3329 temp
= I915_READ(reg
);
3330 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3332 if (temp
& FDI_RX_BIT_LOCK
||
3333 (I915_READ(reg
) & FDI_RX_BIT_LOCK
)) {
3334 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
3335 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n",
3339 udelay(1); /* should be 0.5us */
3342 DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j
/ 2);
3347 reg
= FDI_TX_CTL(pipe
);
3348 temp
= I915_READ(reg
);
3349 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
3350 temp
|= FDI_LINK_TRAIN_PATTERN_2_IVB
;
3351 I915_WRITE(reg
, temp
);
3353 reg
= FDI_RX_CTL(pipe
);
3354 temp
= I915_READ(reg
);
3355 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3356 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
3357 I915_WRITE(reg
, temp
);
3360 udelay(2); /* should be 1.5us */
3362 for (i
= 0; i
< 4; i
++) {
3363 reg
= FDI_RX_IIR(pipe
);
3364 temp
= I915_READ(reg
);
3365 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3367 if (temp
& FDI_RX_SYMBOL_LOCK
||
3368 (I915_READ(reg
) & FDI_RX_SYMBOL_LOCK
)) {
3369 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3370 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n",
3374 udelay(2); /* should be 1.5us */
3377 DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j
/ 2);
3381 DRM_DEBUG_KMS("FDI train done.\n");
3384 static void ironlake_fdi_pll_enable(struct intel_crtc
*intel_crtc
)
3386 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3387 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3388 int pipe
= intel_crtc
->pipe
;
3392 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
3393 reg
= FDI_RX_CTL(pipe
);
3394 temp
= I915_READ(reg
);
3395 temp
&= ~(FDI_DP_PORT_WIDTH_MASK
| (0x7 << 16));
3396 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
->fdi_lanes
);
3397 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
3398 I915_WRITE(reg
, temp
| FDI_RX_PLL_ENABLE
);
3403 /* Switch from Rawclk to PCDclk */
3404 temp
= I915_READ(reg
);
3405 I915_WRITE(reg
, temp
| FDI_PCDCLK
);
3410 /* Enable CPU FDI TX PLL, always on for Ironlake */
3411 reg
= FDI_TX_CTL(pipe
);
3412 temp
= I915_READ(reg
);
3413 if ((temp
& FDI_TX_PLL_ENABLE
) == 0) {
3414 I915_WRITE(reg
, temp
| FDI_TX_PLL_ENABLE
);
3421 static void ironlake_fdi_pll_disable(struct intel_crtc
*intel_crtc
)
3423 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3424 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3425 int pipe
= intel_crtc
->pipe
;
3428 /* Switch from PCDclk to Rawclk */
3429 reg
= FDI_RX_CTL(pipe
);
3430 temp
= I915_READ(reg
);
3431 I915_WRITE(reg
, temp
& ~FDI_PCDCLK
);
3433 /* Disable CPU FDI TX PLL */
3434 reg
= FDI_TX_CTL(pipe
);
3435 temp
= I915_READ(reg
);
3436 I915_WRITE(reg
, temp
& ~FDI_TX_PLL_ENABLE
);
3441 reg
= FDI_RX_CTL(pipe
);
3442 temp
= I915_READ(reg
);
3443 I915_WRITE(reg
, temp
& ~FDI_RX_PLL_ENABLE
);
3445 /* Wait for the clocks to turn off. */
3450 static void ironlake_fdi_disable(struct drm_crtc
*crtc
)
3452 struct drm_device
*dev
= crtc
->dev
;
3453 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3454 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3455 int pipe
= intel_crtc
->pipe
;
3458 /* disable CPU FDI tx and PCH FDI rx */
3459 reg
= FDI_TX_CTL(pipe
);
3460 temp
= I915_READ(reg
);
3461 I915_WRITE(reg
, temp
& ~FDI_TX_ENABLE
);
3464 reg
= FDI_RX_CTL(pipe
);
3465 temp
= I915_READ(reg
);
3466 temp
&= ~(0x7 << 16);
3467 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
3468 I915_WRITE(reg
, temp
& ~FDI_RX_ENABLE
);
3473 /* Ironlake workaround, disable clock pointer after downing FDI */
3474 if (HAS_PCH_IBX(dev
))
3475 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
3477 /* still set train pattern 1 */
3478 reg
= FDI_TX_CTL(pipe
);
3479 temp
= I915_READ(reg
);
3480 temp
&= ~FDI_LINK_TRAIN_NONE
;
3481 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3482 I915_WRITE(reg
, temp
);
3484 reg
= FDI_RX_CTL(pipe
);
3485 temp
= I915_READ(reg
);
3486 if (HAS_PCH_CPT(dev
)) {
3487 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3488 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
3490 temp
&= ~FDI_LINK_TRAIN_NONE
;
3491 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3493 /* BPC in FDI rx is consistent with that in PIPECONF */
3494 temp
&= ~(0x07 << 16);
3495 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
3496 I915_WRITE(reg
, temp
);
3502 bool intel_has_pending_fb_unpin(struct drm_device
*dev
)
3504 struct intel_crtc
*crtc
;
3506 /* Note that we don't need to be called with mode_config.lock here
3507 * as our list of CRTC objects is static for the lifetime of the
3508 * device and so cannot disappear as we iterate. Similarly, we can
3509 * happily treat the predicates as racy, atomic checks as userspace
3510 * cannot claim and pin a new fb without at least acquring the
3511 * struct_mutex and so serialising with us.
3513 for_each_intel_crtc(dev
, crtc
) {
3514 if (atomic_read(&crtc
->unpin_work_count
) == 0)
3517 if (crtc
->unpin_work
)
3518 intel_wait_for_vblank(dev
, crtc
->pipe
);
3526 static void page_flip_completed(struct intel_crtc
*intel_crtc
)
3528 struct drm_i915_private
*dev_priv
= to_i915(intel_crtc
->base
.dev
);
3529 struct intel_unpin_work
*work
= intel_crtc
->unpin_work
;
3531 /* ensure that the unpin work is consistent wrt ->pending. */
3533 intel_crtc
->unpin_work
= NULL
;
3536 drm_send_vblank_event(intel_crtc
->base
.dev
,
3540 drm_crtc_vblank_put(&intel_crtc
->base
);
3542 wake_up_all(&dev_priv
->pending_flip_queue
);
3543 queue_work(dev_priv
->wq
, &work
->work
);
3545 trace_i915_flip_complete(intel_crtc
->plane
,
3546 work
->pending_flip_obj
);
3549 void intel_crtc_wait_for_pending_flips(struct drm_crtc
*crtc
)
3551 struct drm_device
*dev
= crtc
->dev
;
3552 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3554 WARN_ON(waitqueue_active(&dev_priv
->pending_flip_queue
));
3555 if (WARN_ON(wait_event_timeout(dev_priv
->pending_flip_queue
,
3556 !intel_crtc_has_pending_flip(crtc
),
3558 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3560 spin_lock_irq(&dev
->event_lock
);
3561 if (intel_crtc
->unpin_work
) {
3562 WARN_ONCE(1, "Removing stuck page flip\n");
3563 page_flip_completed(intel_crtc
);
3565 spin_unlock_irq(&dev
->event_lock
);
3568 if (crtc
->primary
->fb
) {
3569 mutex_lock(&dev
->struct_mutex
);
3570 intel_finish_fb(crtc
->primary
->fb
);
3571 mutex_unlock(&dev
->struct_mutex
);
3575 /* Program iCLKIP clock to the desired frequency */
3576 static void lpt_program_iclkip(struct drm_crtc
*crtc
)
3578 struct drm_device
*dev
= crtc
->dev
;
3579 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3580 int clock
= to_intel_crtc(crtc
)->config
->base
.adjusted_mode
.crtc_clock
;
3581 u32 divsel
, phaseinc
, auxdiv
, phasedir
= 0;
3584 mutex_lock(&dev_priv
->dpio_lock
);
3586 /* It is necessary to ungate the pixclk gate prior to programming
3587 * the divisors, and gate it back when it is done.
3589 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_GATE
);
3591 /* Disable SSCCTL */
3592 intel_sbi_write(dev_priv
, SBI_SSCCTL6
,
3593 intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
) |
3597 /* 20MHz is a corner case which is out of range for the 7-bit divisor */
3598 if (clock
== 20000) {
3603 /* The iCLK virtual clock root frequency is in MHz,
3604 * but the adjusted_mode->crtc_clock in in KHz. To get the
3605 * divisors, it is necessary to divide one by another, so we
3606 * convert the virtual clock precision to KHz here for higher
3609 u32 iclk_virtual_root_freq
= 172800 * 1000;
3610 u32 iclk_pi_range
= 64;
3611 u32 desired_divisor
, msb_divisor_value
, pi_value
;
3613 desired_divisor
= (iclk_virtual_root_freq
/ clock
);
3614 msb_divisor_value
= desired_divisor
/ iclk_pi_range
;
3615 pi_value
= desired_divisor
% iclk_pi_range
;
3618 divsel
= msb_divisor_value
- 2;
3619 phaseinc
= pi_value
;
3622 /* This should not happen with any sane values */
3623 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel
) &
3624 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
);
3625 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir
) &
3626 ~SBI_SSCDIVINTPHASE_INCVAL_MASK
);
3628 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
3635 /* Program SSCDIVINTPHASE6 */
3636 temp
= intel_sbi_read(dev_priv
, SBI_SSCDIVINTPHASE6
, SBI_ICLK
);
3637 temp
&= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
;
3638 temp
|= SBI_SSCDIVINTPHASE_DIVSEL(divsel
);
3639 temp
&= ~SBI_SSCDIVINTPHASE_INCVAL_MASK
;
3640 temp
|= SBI_SSCDIVINTPHASE_INCVAL(phaseinc
);
3641 temp
|= SBI_SSCDIVINTPHASE_DIR(phasedir
);
3642 temp
|= SBI_SSCDIVINTPHASE_PROPAGATE
;
3643 intel_sbi_write(dev_priv
, SBI_SSCDIVINTPHASE6
, temp
, SBI_ICLK
);
3645 /* Program SSCAUXDIV */
3646 temp
= intel_sbi_read(dev_priv
, SBI_SSCAUXDIV6
, SBI_ICLK
);
3647 temp
&= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
3648 temp
|= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv
);
3649 intel_sbi_write(dev_priv
, SBI_SSCAUXDIV6
, temp
, SBI_ICLK
);
3651 /* Enable modulator and associated divider */
3652 temp
= intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
);
3653 temp
&= ~SBI_SSCCTL_DISABLE
;
3654 intel_sbi_write(dev_priv
, SBI_SSCCTL6
, temp
, SBI_ICLK
);
3656 /* Wait for initialization time */
3659 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_UNGATE
);
3661 mutex_unlock(&dev_priv
->dpio_lock
);
3664 static void ironlake_pch_transcoder_set_timings(struct intel_crtc
*crtc
,
3665 enum pipe pch_transcoder
)
3667 struct drm_device
*dev
= crtc
->base
.dev
;
3668 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3669 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
3671 I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder
),
3672 I915_READ(HTOTAL(cpu_transcoder
)));
3673 I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder
),
3674 I915_READ(HBLANK(cpu_transcoder
)));
3675 I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder
),
3676 I915_READ(HSYNC(cpu_transcoder
)));
3678 I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder
),
3679 I915_READ(VTOTAL(cpu_transcoder
)));
3680 I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder
),
3681 I915_READ(VBLANK(cpu_transcoder
)));
3682 I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder
),
3683 I915_READ(VSYNC(cpu_transcoder
)));
3684 I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder
),
3685 I915_READ(VSYNCSHIFT(cpu_transcoder
)));
3688 static void cpt_enable_fdi_bc_bifurcation(struct drm_device
*dev
)
3690 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3693 temp
= I915_READ(SOUTH_CHICKEN1
);
3694 if (temp
& FDI_BC_BIFURCATION_SELECT
)
3697 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B
)) & FDI_RX_ENABLE
);
3698 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C
)) & FDI_RX_ENABLE
);
3700 temp
|= FDI_BC_BIFURCATION_SELECT
;
3701 DRM_DEBUG_KMS("enabling fdi C rx\n");
3702 I915_WRITE(SOUTH_CHICKEN1
, temp
);
3703 POSTING_READ(SOUTH_CHICKEN1
);
3706 static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc
*intel_crtc
)
3708 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3709 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3711 switch (intel_crtc
->pipe
) {
3715 if (intel_crtc
->config
->fdi_lanes
> 2)
3716 WARN_ON(I915_READ(SOUTH_CHICKEN1
) & FDI_BC_BIFURCATION_SELECT
);
3718 cpt_enable_fdi_bc_bifurcation(dev
);
3722 cpt_enable_fdi_bc_bifurcation(dev
);
3731 * Enable PCH resources required for PCH ports:
3733 * - FDI training & RX/TX
3734 * - update transcoder timings
3735 * - DP transcoding bits
3738 static void ironlake_pch_enable(struct drm_crtc
*crtc
)
3740 struct drm_device
*dev
= crtc
->dev
;
3741 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3742 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3743 int pipe
= intel_crtc
->pipe
;
3746 assert_pch_transcoder_disabled(dev_priv
, pipe
);
3748 if (IS_IVYBRIDGE(dev
))
3749 ivybridge_update_fdi_bc_bifurcation(intel_crtc
);
3751 /* Write the TU size bits before fdi link training, so that error
3752 * detection works. */
3753 I915_WRITE(FDI_RX_TUSIZE1(pipe
),
3754 I915_READ(PIPE_DATA_M1(pipe
)) & TU_SIZE_MASK
);
3756 /* For PCH output, training FDI link */
3757 dev_priv
->display
.fdi_link_train(crtc
);
3759 /* We need to program the right clock selection before writing the pixel
3760 * mutliplier into the DPLL. */
3761 if (HAS_PCH_CPT(dev
)) {
3764 temp
= I915_READ(PCH_DPLL_SEL
);
3765 temp
|= TRANS_DPLL_ENABLE(pipe
);
3766 sel
= TRANS_DPLLB_SEL(pipe
);
3767 if (intel_crtc
->config
->shared_dpll
== DPLL_ID_PCH_PLL_B
)
3771 I915_WRITE(PCH_DPLL_SEL
, temp
);
3774 /* XXX: pch pll's can be enabled any time before we enable the PCH
3775 * transcoder, and we actually should do this to not upset any PCH
3776 * transcoder that already use the clock when we share it.
3778 * Note that enable_shared_dpll tries to do the right thing, but
3779 * get_shared_dpll unconditionally resets the pll - we need that to have
3780 * the right LVDS enable sequence. */
3781 intel_enable_shared_dpll(intel_crtc
);
3783 /* set transcoder timing, panel must allow it */
3784 assert_panel_unlocked(dev_priv
, pipe
);
3785 ironlake_pch_transcoder_set_timings(intel_crtc
, pipe
);
3787 intel_fdi_normal_train(crtc
);
3789 /* For PCH DP, enable TRANS_DP_CTL */
3790 if (HAS_PCH_CPT(dev
) && intel_crtc
->config
->has_dp_encoder
) {
3791 u32 bpc
= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) >> 5;
3792 reg
= TRANS_DP_CTL(pipe
);
3793 temp
= I915_READ(reg
);
3794 temp
&= ~(TRANS_DP_PORT_SEL_MASK
|
3795 TRANS_DP_SYNC_MASK
|
3797 temp
|= (TRANS_DP_OUTPUT_ENABLE
|
3798 TRANS_DP_ENH_FRAMING
);
3799 temp
|= bpc
<< 9; /* same format but at 11:9 */
3801 if (crtc
->mode
.flags
& DRM_MODE_FLAG_PHSYNC
)
3802 temp
|= TRANS_DP_HSYNC_ACTIVE_HIGH
;
3803 if (crtc
->mode
.flags
& DRM_MODE_FLAG_PVSYNC
)
3804 temp
|= TRANS_DP_VSYNC_ACTIVE_HIGH
;
3806 switch (intel_trans_dp_port_sel(crtc
)) {
3808 temp
|= TRANS_DP_PORT_SEL_B
;
3811 temp
|= TRANS_DP_PORT_SEL_C
;
3814 temp
|= TRANS_DP_PORT_SEL_D
;
3820 I915_WRITE(reg
, temp
);
3823 ironlake_enable_pch_transcoder(dev_priv
, pipe
);
3826 static void lpt_pch_enable(struct drm_crtc
*crtc
)
3828 struct drm_device
*dev
= crtc
->dev
;
3829 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3830 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3831 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
3833 assert_pch_transcoder_disabled(dev_priv
, TRANSCODER_A
);
3835 lpt_program_iclkip(crtc
);
3837 /* Set transcoder timing. */
3838 ironlake_pch_transcoder_set_timings(intel_crtc
, PIPE_A
);
3840 lpt_enable_pch_transcoder(dev_priv
, cpu_transcoder
);
3843 void intel_put_shared_dpll(struct intel_crtc
*crtc
)
3845 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
3850 if (!(pll
->config
.crtc_mask
& (1 << crtc
->pipe
))) {
3851 WARN(1, "bad %s crtc mask\n", pll
->name
);
3855 pll
->config
.crtc_mask
&= ~(1 << crtc
->pipe
);
3856 if (pll
->config
.crtc_mask
== 0) {
3858 WARN_ON(pll
->active
);
3861 crtc
->config
->shared_dpll
= DPLL_ID_PRIVATE
;
3864 struct intel_shared_dpll
*intel_get_shared_dpll(struct intel_crtc
*crtc
,
3865 struct intel_crtc_state
*crtc_state
)
3867 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
3868 struct intel_shared_dpll
*pll
;
3869 enum intel_dpll_id i
;
3871 if (HAS_PCH_IBX(dev_priv
->dev
)) {
3872 /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
3873 i
= (enum intel_dpll_id
) crtc
->pipe
;
3874 pll
= &dev_priv
->shared_dplls
[i
];
3876 DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n",
3877 crtc
->base
.base
.id
, pll
->name
);
3879 WARN_ON(pll
->new_config
->crtc_mask
);
3884 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
3885 pll
= &dev_priv
->shared_dplls
[i
];
3887 /* Only want to check enabled timings first */
3888 if (pll
->new_config
->crtc_mask
== 0)
3891 if (memcmp(&crtc_state
->dpll_hw_state
,
3892 &pll
->new_config
->hw_state
,
3893 sizeof(pll
->new_config
->hw_state
)) == 0) {
3894 DRM_DEBUG_KMS("CRTC:%d sharing existing %s (crtc mask 0x%08x, ative %d)\n",
3895 crtc
->base
.base
.id
, pll
->name
,
3896 pll
->new_config
->crtc_mask
,
3902 /* Ok no matching timings, maybe there's a free one? */
3903 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
3904 pll
= &dev_priv
->shared_dplls
[i
];
3905 if (pll
->new_config
->crtc_mask
== 0) {
3906 DRM_DEBUG_KMS("CRTC:%d allocated %s\n",
3907 crtc
->base
.base
.id
, pll
->name
);
3915 if (pll
->new_config
->crtc_mask
== 0)
3916 pll
->new_config
->hw_state
= crtc_state
->dpll_hw_state
;
3918 crtc_state
->shared_dpll
= i
;
3919 DRM_DEBUG_DRIVER("using %s for pipe %c\n", pll
->name
,
3920 pipe_name(crtc
->pipe
));
3922 pll
->new_config
->crtc_mask
|= 1 << crtc
->pipe
;
3928 * intel_shared_dpll_start_config - start a new PLL staged config
3929 * @dev_priv: DRM device
3930 * @clear_pipes: mask of pipes that will have their PLLs freed
3932 * Starts a new PLL staged config, copying the current config but
3933 * releasing the references of pipes specified in clear_pipes.
3935 static int intel_shared_dpll_start_config(struct drm_i915_private
*dev_priv
,
3936 unsigned clear_pipes
)
3938 struct intel_shared_dpll
*pll
;
3939 enum intel_dpll_id i
;
3941 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
3942 pll
= &dev_priv
->shared_dplls
[i
];
3944 pll
->new_config
= kmemdup(&pll
->config
, sizeof pll
->config
,
3946 if (!pll
->new_config
)
3949 pll
->new_config
->crtc_mask
&= ~clear_pipes
;
3956 pll
= &dev_priv
->shared_dplls
[i
];
3957 kfree(pll
->new_config
);
3958 pll
->new_config
= NULL
;
3964 static void intel_shared_dpll_commit(struct drm_i915_private
*dev_priv
)
3966 struct intel_shared_dpll
*pll
;
3967 enum intel_dpll_id i
;
3969 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
3970 pll
= &dev_priv
->shared_dplls
[i
];
3972 WARN_ON(pll
->new_config
== &pll
->config
);
3974 pll
->config
= *pll
->new_config
;
3975 kfree(pll
->new_config
);
3976 pll
->new_config
= NULL
;
3980 static void intel_shared_dpll_abort_config(struct drm_i915_private
*dev_priv
)
3982 struct intel_shared_dpll
*pll
;
3983 enum intel_dpll_id i
;
3985 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
3986 pll
= &dev_priv
->shared_dplls
[i
];
3988 WARN_ON(pll
->new_config
== &pll
->config
);
3990 kfree(pll
->new_config
);
3991 pll
->new_config
= NULL
;
3995 static void cpt_verify_modeset(struct drm_device
*dev
, int pipe
)
3997 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3998 int dslreg
= PIPEDSL(pipe
);
4001 temp
= I915_READ(dslreg
);
4003 if (wait_for(I915_READ(dslreg
) != temp
, 5)) {
4004 if (wait_for(I915_READ(dslreg
) != temp
, 5))
4005 DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe
));
4009 static void skylake_pfit_enable(struct intel_crtc
*crtc
)
4011 struct drm_device
*dev
= crtc
->base
.dev
;
4012 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4013 int pipe
= crtc
->pipe
;
4015 if (crtc
->config
->pch_pfit
.enabled
) {
4016 I915_WRITE(PS_CTL(pipe
), PS_ENABLE
);
4017 I915_WRITE(PS_WIN_POS(pipe
), crtc
->config
->pch_pfit
.pos
);
4018 I915_WRITE(PS_WIN_SZ(pipe
), crtc
->config
->pch_pfit
.size
);
4022 static void ironlake_pfit_enable(struct intel_crtc
*crtc
)
4024 struct drm_device
*dev
= crtc
->base
.dev
;
4025 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4026 int pipe
= crtc
->pipe
;
4028 if (crtc
->config
->pch_pfit
.enabled
) {
4029 /* Force use of hard-coded filter coefficients
4030 * as some pre-programmed values are broken,
4033 if (IS_IVYBRIDGE(dev
) || IS_HASWELL(dev
))
4034 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
|
4035 PF_PIPE_SEL_IVB(pipe
));
4037 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
);
4038 I915_WRITE(PF_WIN_POS(pipe
), crtc
->config
->pch_pfit
.pos
);
4039 I915_WRITE(PF_WIN_SZ(pipe
), crtc
->config
->pch_pfit
.size
);
4043 static void intel_enable_sprite_planes(struct drm_crtc
*crtc
)
4045 struct drm_device
*dev
= crtc
->dev
;
4046 enum pipe pipe
= to_intel_crtc(crtc
)->pipe
;
4047 struct drm_plane
*plane
;
4048 struct intel_plane
*intel_plane
;
4050 drm_for_each_legacy_plane(plane
, &dev
->mode_config
.plane_list
) {
4051 intel_plane
= to_intel_plane(plane
);
4052 if (intel_plane
->pipe
== pipe
)
4053 intel_plane_restore(&intel_plane
->base
);
4057 static void intel_disable_sprite_planes(struct drm_crtc
*crtc
)
4059 struct drm_device
*dev
= crtc
->dev
;
4060 enum pipe pipe
= to_intel_crtc(crtc
)->pipe
;
4061 struct drm_plane
*plane
;
4062 struct intel_plane
*intel_plane
;
4064 drm_for_each_legacy_plane(plane
, &dev
->mode_config
.plane_list
) {
4065 intel_plane
= to_intel_plane(plane
);
4066 if (intel_plane
->pipe
== pipe
)
4067 plane
->funcs
->disable_plane(plane
);
4071 void hsw_enable_ips(struct intel_crtc
*crtc
)
4073 struct drm_device
*dev
= crtc
->base
.dev
;
4074 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4076 if (!crtc
->config
->ips_enabled
)
4079 /* We can only enable IPS after we enable a plane and wait for a vblank */
4080 intel_wait_for_vblank(dev
, crtc
->pipe
);
4082 assert_plane_enabled(dev_priv
, crtc
->plane
);
4083 if (IS_BROADWELL(dev
)) {
4084 mutex_lock(&dev_priv
->rps
.hw_lock
);
4085 WARN_ON(sandybridge_pcode_write(dev_priv
, DISPLAY_IPS_CONTROL
, 0xc0000000));
4086 mutex_unlock(&dev_priv
->rps
.hw_lock
);
4087 /* Quoting Art Runyan: "its not safe to expect any particular
4088 * value in IPS_CTL bit 31 after enabling IPS through the
4089 * mailbox." Moreover, the mailbox may return a bogus state,
4090 * so we need to just enable it and continue on.
4093 I915_WRITE(IPS_CTL
, IPS_ENABLE
);
4094 /* The bit only becomes 1 in the next vblank, so this wait here
4095 * is essentially intel_wait_for_vblank. If we don't have this
4096 * and don't wait for vblanks until the end of crtc_enable, then
4097 * the HW state readout code will complain that the expected
4098 * IPS_CTL value is not the one we read. */
4099 if (wait_for(I915_READ_NOTRACE(IPS_CTL
) & IPS_ENABLE
, 50))
4100 DRM_ERROR("Timed out waiting for IPS enable\n");
4104 void hsw_disable_ips(struct intel_crtc
*crtc
)
4106 struct drm_device
*dev
= crtc
->base
.dev
;
4107 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4109 if (!crtc
->config
->ips_enabled
)
4112 assert_plane_enabled(dev_priv
, crtc
->plane
);
4113 if (IS_BROADWELL(dev
)) {
4114 mutex_lock(&dev_priv
->rps
.hw_lock
);
4115 WARN_ON(sandybridge_pcode_write(dev_priv
, DISPLAY_IPS_CONTROL
, 0));
4116 mutex_unlock(&dev_priv
->rps
.hw_lock
);
4117 /* wait for pcode to finish disabling IPS, which may take up to 42ms */
4118 if (wait_for((I915_READ(IPS_CTL
) & IPS_ENABLE
) == 0, 42))
4119 DRM_ERROR("Timed out waiting for IPS disable\n");
4121 I915_WRITE(IPS_CTL
, 0);
4122 POSTING_READ(IPS_CTL
);
4125 /* We need to wait for a vblank before we can disable the plane. */
4126 intel_wait_for_vblank(dev
, crtc
->pipe
);
4129 /** Loads the palette/gamma unit for the CRTC with the prepared values */
4130 static void intel_crtc_load_lut(struct drm_crtc
*crtc
)
4132 struct drm_device
*dev
= crtc
->dev
;
4133 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4134 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4135 enum pipe pipe
= intel_crtc
->pipe
;
4136 int palreg
= PALETTE(pipe
);
4138 bool reenable_ips
= false;
4140 /* The clocks have to be on to load the palette. */
4141 if (!crtc
->enabled
|| !intel_crtc
->active
)
4144 if (!HAS_PCH_SPLIT(dev_priv
->dev
)) {
4145 if (intel_pipe_has_type(intel_crtc
, INTEL_OUTPUT_DSI
))
4146 assert_dsi_pll_enabled(dev_priv
);
4148 assert_pll_enabled(dev_priv
, pipe
);
4151 /* use legacy palette for Ironlake */
4152 if (!HAS_GMCH_DISPLAY(dev
))
4153 palreg
= LGC_PALETTE(pipe
);
4155 /* Workaround : Do not read or write the pipe palette/gamma data while
4156 * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled.
4158 if (IS_HASWELL(dev
) && intel_crtc
->config
->ips_enabled
&&
4159 ((I915_READ(GAMMA_MODE(pipe
)) & GAMMA_MODE_MODE_MASK
) ==
4160 GAMMA_MODE_MODE_SPLIT
)) {
4161 hsw_disable_ips(intel_crtc
);
4162 reenable_ips
= true;
4165 for (i
= 0; i
< 256; i
++) {
4166 I915_WRITE(palreg
+ 4 * i
,
4167 (intel_crtc
->lut_r
[i
] << 16) |
4168 (intel_crtc
->lut_g
[i
] << 8) |
4169 intel_crtc
->lut_b
[i
]);
4173 hsw_enable_ips(intel_crtc
);
4176 static void intel_crtc_dpms_overlay(struct intel_crtc
*intel_crtc
, bool enable
)
4178 if (!enable
&& intel_crtc
->overlay
) {
4179 struct drm_device
*dev
= intel_crtc
->base
.dev
;
4180 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4182 mutex_lock(&dev
->struct_mutex
);
4183 dev_priv
->mm
.interruptible
= false;
4184 (void) intel_overlay_switch_off(intel_crtc
->overlay
);
4185 dev_priv
->mm
.interruptible
= true;
4186 mutex_unlock(&dev
->struct_mutex
);
4189 /* Let userspace switch the overlay on again. In most cases userspace
4190 * has to recompute where to put it anyway.
4194 static void intel_crtc_enable_planes(struct drm_crtc
*crtc
)
4196 struct drm_device
*dev
= crtc
->dev
;
4197 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4198 int pipe
= intel_crtc
->pipe
;
4200 intel_enable_primary_hw_plane(crtc
->primary
, crtc
);
4201 intel_enable_sprite_planes(crtc
);
4202 intel_crtc_update_cursor(crtc
, true);
4203 intel_crtc_dpms_overlay(intel_crtc
, true);
4205 hsw_enable_ips(intel_crtc
);
4207 mutex_lock(&dev
->struct_mutex
);
4208 intel_fbc_update(dev
);
4209 mutex_unlock(&dev
->struct_mutex
);
4212 * FIXME: Once we grow proper nuclear flip support out of this we need
4213 * to compute the mask of flip planes precisely. For the time being
4214 * consider this a flip from a NULL plane.
4216 intel_frontbuffer_flip(dev
, INTEL_FRONTBUFFER_ALL_MASK(pipe
));
4219 static void intel_crtc_disable_planes(struct drm_crtc
*crtc
)
4221 struct drm_device
*dev
= crtc
->dev
;
4222 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4223 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4224 int pipe
= intel_crtc
->pipe
;
4225 int plane
= intel_crtc
->plane
;
4227 intel_crtc_wait_for_pending_flips(crtc
);
4229 if (dev_priv
->fbc
.plane
== plane
)
4230 intel_fbc_disable(dev
);
4232 hsw_disable_ips(intel_crtc
);
4234 intel_crtc_dpms_overlay(intel_crtc
, false);
4235 intel_crtc_update_cursor(crtc
, false);
4236 intel_disable_sprite_planes(crtc
);
4237 intel_disable_primary_hw_plane(crtc
->primary
, crtc
);
4240 * FIXME: Once we grow proper nuclear flip support out of this we need
4241 * to compute the mask of flip planes precisely. For the time being
4242 * consider this a flip to a NULL plane.
4244 intel_frontbuffer_flip(dev
, INTEL_FRONTBUFFER_ALL_MASK(pipe
));
4247 static void ironlake_crtc_enable(struct drm_crtc
*crtc
)
4249 struct drm_device
*dev
= crtc
->dev
;
4250 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4251 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4252 struct intel_encoder
*encoder
;
4253 int pipe
= intel_crtc
->pipe
;
4255 WARN_ON(!crtc
->enabled
);
4257 if (intel_crtc
->active
)
4260 if (intel_crtc
->config
->has_pch_encoder
)
4261 intel_prepare_shared_dpll(intel_crtc
);
4263 if (intel_crtc
->config
->has_dp_encoder
)
4264 intel_dp_set_m_n(intel_crtc
);
4266 intel_set_pipe_timings(intel_crtc
);
4268 if (intel_crtc
->config
->has_pch_encoder
) {
4269 intel_cpu_transcoder_set_m_n(intel_crtc
,
4270 &intel_crtc
->config
->fdi_m_n
, NULL
);
4273 ironlake_set_pipeconf(crtc
);
4275 intel_crtc
->active
= true;
4277 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
4278 intel_set_pch_fifo_underrun_reporting(dev_priv
, pipe
, true);
4280 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4281 if (encoder
->pre_enable
)
4282 encoder
->pre_enable(encoder
);
4284 if (intel_crtc
->config
->has_pch_encoder
) {
4285 /* Note: FDI PLL enabling _must_ be done before we enable the
4286 * cpu pipes, hence this is separate from all the other fdi/pch
4288 ironlake_fdi_pll_enable(intel_crtc
);
4290 assert_fdi_tx_disabled(dev_priv
, pipe
);
4291 assert_fdi_rx_disabled(dev_priv
, pipe
);
4294 ironlake_pfit_enable(intel_crtc
);
4297 * On ILK+ LUT must be loaded before the pipe is running but with
4300 intel_crtc_load_lut(crtc
);
4302 intel_update_watermarks(crtc
);
4303 intel_enable_pipe(intel_crtc
);
4305 if (intel_crtc
->config
->has_pch_encoder
)
4306 ironlake_pch_enable(crtc
);
4308 assert_vblank_disabled(crtc
);
4309 drm_crtc_vblank_on(crtc
);
4311 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4312 encoder
->enable(encoder
);
4314 if (HAS_PCH_CPT(dev
))
4315 cpt_verify_modeset(dev
, intel_crtc
->pipe
);
4317 intel_crtc_enable_planes(crtc
);
4320 /* IPS only exists on ULT machines and is tied to pipe A. */
4321 static bool hsw_crtc_supports_ips(struct intel_crtc
*crtc
)
4323 return HAS_IPS(crtc
->base
.dev
) && crtc
->pipe
== PIPE_A
;
4327 * This implements the workaround described in the "notes" section of the mode
4328 * set sequence documentation. When going from no pipes or single pipe to
4329 * multiple pipes, and planes are enabled after the pipe, we need to wait at
4330 * least 2 vblanks on the first pipe before enabling planes on the second pipe.
4332 static void haswell_mode_set_planes_workaround(struct intel_crtc
*crtc
)
4334 struct drm_device
*dev
= crtc
->base
.dev
;
4335 struct intel_crtc
*crtc_it
, *other_active_crtc
= NULL
;
4337 /* We want to get the other_active_crtc only if there's only 1 other
4339 for_each_intel_crtc(dev
, crtc_it
) {
4340 if (!crtc_it
->active
|| crtc_it
== crtc
)
4343 if (other_active_crtc
)
4346 other_active_crtc
= crtc_it
;
4348 if (!other_active_crtc
)
4351 intel_wait_for_vblank(dev
, other_active_crtc
->pipe
);
4352 intel_wait_for_vblank(dev
, other_active_crtc
->pipe
);
4355 static void haswell_crtc_enable(struct drm_crtc
*crtc
)
4357 struct drm_device
*dev
= crtc
->dev
;
4358 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4359 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4360 struct intel_encoder
*encoder
;
4361 int pipe
= intel_crtc
->pipe
;
4363 WARN_ON(!crtc
->enabled
);
4365 if (intel_crtc
->active
)
4368 if (intel_crtc_to_shared_dpll(intel_crtc
))
4369 intel_enable_shared_dpll(intel_crtc
);
4371 if (intel_crtc
->config
->has_dp_encoder
)
4372 intel_dp_set_m_n(intel_crtc
);
4374 intel_set_pipe_timings(intel_crtc
);
4376 if (intel_crtc
->config
->cpu_transcoder
!= TRANSCODER_EDP
) {
4377 I915_WRITE(PIPE_MULT(intel_crtc
->config
->cpu_transcoder
),
4378 intel_crtc
->config
->pixel_multiplier
- 1);
4381 if (intel_crtc
->config
->has_pch_encoder
) {
4382 intel_cpu_transcoder_set_m_n(intel_crtc
,
4383 &intel_crtc
->config
->fdi_m_n
, NULL
);
4386 haswell_set_pipeconf(crtc
);
4388 intel_set_pipe_csc(crtc
);
4390 intel_crtc
->active
= true;
4392 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
4393 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4394 if (encoder
->pre_enable
)
4395 encoder
->pre_enable(encoder
);
4397 if (intel_crtc
->config
->has_pch_encoder
) {
4398 intel_set_pch_fifo_underrun_reporting(dev_priv
, TRANSCODER_A
,
4400 dev_priv
->display
.fdi_link_train(crtc
);
4403 intel_ddi_enable_pipe_clock(intel_crtc
);
4405 if (IS_SKYLAKE(dev
))
4406 skylake_pfit_enable(intel_crtc
);
4408 ironlake_pfit_enable(intel_crtc
);
4411 * On ILK+ LUT must be loaded before the pipe is running but with
4414 intel_crtc_load_lut(crtc
);
4416 intel_ddi_set_pipe_settings(crtc
);
4417 intel_ddi_enable_transcoder_func(crtc
);
4419 intel_update_watermarks(crtc
);
4420 intel_enable_pipe(intel_crtc
);
4422 if (intel_crtc
->config
->has_pch_encoder
)
4423 lpt_pch_enable(crtc
);
4425 if (intel_crtc
->config
->dp_encoder_is_mst
)
4426 intel_ddi_set_vc_payload_alloc(crtc
, true);
4428 assert_vblank_disabled(crtc
);
4429 drm_crtc_vblank_on(crtc
);
4431 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
4432 encoder
->enable(encoder
);
4433 intel_opregion_notify_encoder(encoder
, true);
4436 /* If we change the relative order between pipe/planes enabling, we need
4437 * to change the workaround. */
4438 haswell_mode_set_planes_workaround(intel_crtc
);
4439 intel_crtc_enable_planes(crtc
);
4442 static void skylake_pfit_disable(struct intel_crtc
*crtc
)
4444 struct drm_device
*dev
= crtc
->base
.dev
;
4445 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4446 int pipe
= crtc
->pipe
;
4448 /* To avoid upsetting the power well on haswell only disable the pfit if
4449 * it's in use. The hw state code will make sure we get this right. */
4450 if (crtc
->config
->pch_pfit
.enabled
) {
4451 I915_WRITE(PS_CTL(pipe
), 0);
4452 I915_WRITE(PS_WIN_POS(pipe
), 0);
4453 I915_WRITE(PS_WIN_SZ(pipe
), 0);
4457 static void ironlake_pfit_disable(struct intel_crtc
*crtc
)
4459 struct drm_device
*dev
= crtc
->base
.dev
;
4460 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4461 int pipe
= crtc
->pipe
;
4463 /* To avoid upsetting the power well on haswell only disable the pfit if
4464 * it's in use. The hw state code will make sure we get this right. */
4465 if (crtc
->config
->pch_pfit
.enabled
) {
4466 I915_WRITE(PF_CTL(pipe
), 0);
4467 I915_WRITE(PF_WIN_POS(pipe
), 0);
4468 I915_WRITE(PF_WIN_SZ(pipe
), 0);
4472 static void ironlake_crtc_disable(struct drm_crtc
*crtc
)
4474 struct drm_device
*dev
= crtc
->dev
;
4475 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4476 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4477 struct intel_encoder
*encoder
;
4478 int pipe
= intel_crtc
->pipe
;
4481 if (!intel_crtc
->active
)
4484 intel_crtc_disable_planes(crtc
);
4486 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4487 encoder
->disable(encoder
);
4489 drm_crtc_vblank_off(crtc
);
4490 assert_vblank_disabled(crtc
);
4492 if (intel_crtc
->config
->has_pch_encoder
)
4493 intel_set_pch_fifo_underrun_reporting(dev_priv
, pipe
, false);
4495 intel_disable_pipe(intel_crtc
);
4497 ironlake_pfit_disable(intel_crtc
);
4499 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4500 if (encoder
->post_disable
)
4501 encoder
->post_disable(encoder
);
4503 if (intel_crtc
->config
->has_pch_encoder
) {
4504 ironlake_fdi_disable(crtc
);
4506 ironlake_disable_pch_transcoder(dev_priv
, pipe
);
4508 if (HAS_PCH_CPT(dev
)) {
4509 /* disable TRANS_DP_CTL */
4510 reg
= TRANS_DP_CTL(pipe
);
4511 temp
= I915_READ(reg
);
4512 temp
&= ~(TRANS_DP_OUTPUT_ENABLE
|
4513 TRANS_DP_PORT_SEL_MASK
);
4514 temp
|= TRANS_DP_PORT_SEL_NONE
;
4515 I915_WRITE(reg
, temp
);
4517 /* disable DPLL_SEL */
4518 temp
= I915_READ(PCH_DPLL_SEL
);
4519 temp
&= ~(TRANS_DPLL_ENABLE(pipe
) | TRANS_DPLLB_SEL(pipe
));
4520 I915_WRITE(PCH_DPLL_SEL
, temp
);
4523 /* disable PCH DPLL */
4524 intel_disable_shared_dpll(intel_crtc
);
4526 ironlake_fdi_pll_disable(intel_crtc
);
4529 intel_crtc
->active
= false;
4530 intel_update_watermarks(crtc
);
4532 mutex_lock(&dev
->struct_mutex
);
4533 intel_fbc_update(dev
);
4534 mutex_unlock(&dev
->struct_mutex
);
4537 static void haswell_crtc_disable(struct drm_crtc
*crtc
)
4539 struct drm_device
*dev
= crtc
->dev
;
4540 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4541 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4542 struct intel_encoder
*encoder
;
4543 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
4545 if (!intel_crtc
->active
)
4548 intel_crtc_disable_planes(crtc
);
4550 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
4551 intel_opregion_notify_encoder(encoder
, false);
4552 encoder
->disable(encoder
);
4555 drm_crtc_vblank_off(crtc
);
4556 assert_vblank_disabled(crtc
);
4558 if (intel_crtc
->config
->has_pch_encoder
)
4559 intel_set_pch_fifo_underrun_reporting(dev_priv
, TRANSCODER_A
,
4561 intel_disable_pipe(intel_crtc
);
4563 if (intel_crtc
->config
->dp_encoder_is_mst
)
4564 intel_ddi_set_vc_payload_alloc(crtc
, false);
4566 intel_ddi_disable_transcoder_func(dev_priv
, cpu_transcoder
);
4568 if (IS_SKYLAKE(dev
))
4569 skylake_pfit_disable(intel_crtc
);
4571 ironlake_pfit_disable(intel_crtc
);
4573 intel_ddi_disable_pipe_clock(intel_crtc
);
4575 if (intel_crtc
->config
->has_pch_encoder
) {
4576 lpt_disable_pch_transcoder(dev_priv
);
4577 intel_ddi_fdi_disable(crtc
);
4580 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4581 if (encoder
->post_disable
)
4582 encoder
->post_disable(encoder
);
4584 intel_crtc
->active
= false;
4585 intel_update_watermarks(crtc
);
4587 mutex_lock(&dev
->struct_mutex
);
4588 intel_fbc_update(dev
);
4589 mutex_unlock(&dev
->struct_mutex
);
4591 if (intel_crtc_to_shared_dpll(intel_crtc
))
4592 intel_disable_shared_dpll(intel_crtc
);
4595 static void ironlake_crtc_off(struct drm_crtc
*crtc
)
4597 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4598 intel_put_shared_dpll(intel_crtc
);
4602 static void i9xx_pfit_enable(struct intel_crtc
*crtc
)
4604 struct drm_device
*dev
= crtc
->base
.dev
;
4605 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4606 struct intel_crtc_state
*pipe_config
= crtc
->config
;
4608 if (!pipe_config
->gmch_pfit
.control
)
4612 * The panel fitter should only be adjusted whilst the pipe is disabled,
4613 * according to register description and PRM.
4615 WARN_ON(I915_READ(PFIT_CONTROL
) & PFIT_ENABLE
);
4616 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
4618 I915_WRITE(PFIT_PGM_RATIOS
, pipe_config
->gmch_pfit
.pgm_ratios
);
4619 I915_WRITE(PFIT_CONTROL
, pipe_config
->gmch_pfit
.control
);
4621 /* Border color in case we don't scale up to the full screen. Black by
4622 * default, change to something else for debugging. */
4623 I915_WRITE(BCLRPAT(crtc
->pipe
), 0);
4626 static enum intel_display_power_domain
port_to_power_domain(enum port port
)
4630 return POWER_DOMAIN_PORT_DDI_A_4_LANES
;
4632 return POWER_DOMAIN_PORT_DDI_B_4_LANES
;
4634 return POWER_DOMAIN_PORT_DDI_C_4_LANES
;
4636 return POWER_DOMAIN_PORT_DDI_D_4_LANES
;
4639 return POWER_DOMAIN_PORT_OTHER
;
4643 #define for_each_power_domain(domain, mask) \
4644 for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
4645 if ((1 << (domain)) & (mask))
4647 enum intel_display_power_domain
4648 intel_display_port_power_domain(struct intel_encoder
*intel_encoder
)
4650 struct drm_device
*dev
= intel_encoder
->base
.dev
;
4651 struct intel_digital_port
*intel_dig_port
;
4653 switch (intel_encoder
->type
) {
4654 case INTEL_OUTPUT_UNKNOWN
:
4655 /* Only DDI platforms should ever use this output type */
4656 WARN_ON_ONCE(!HAS_DDI(dev
));
4657 case INTEL_OUTPUT_DISPLAYPORT
:
4658 case INTEL_OUTPUT_HDMI
:
4659 case INTEL_OUTPUT_EDP
:
4660 intel_dig_port
= enc_to_dig_port(&intel_encoder
->base
);
4661 return port_to_power_domain(intel_dig_port
->port
);
4662 case INTEL_OUTPUT_DP_MST
:
4663 intel_dig_port
= enc_to_mst(&intel_encoder
->base
)->primary
;
4664 return port_to_power_domain(intel_dig_port
->port
);
4665 case INTEL_OUTPUT_ANALOG
:
4666 return POWER_DOMAIN_PORT_CRT
;
4667 case INTEL_OUTPUT_DSI
:
4668 return POWER_DOMAIN_PORT_DSI
;
4670 return POWER_DOMAIN_PORT_OTHER
;
4674 static unsigned long get_crtc_power_domains(struct drm_crtc
*crtc
)
4676 struct drm_device
*dev
= crtc
->dev
;
4677 struct intel_encoder
*intel_encoder
;
4678 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4679 enum pipe pipe
= intel_crtc
->pipe
;
4681 enum transcoder transcoder
;
4683 transcoder
= intel_pipe_to_cpu_transcoder(dev
->dev_private
, pipe
);
4685 mask
= BIT(POWER_DOMAIN_PIPE(pipe
));
4686 mask
|= BIT(POWER_DOMAIN_TRANSCODER(transcoder
));
4687 if (intel_crtc
->config
->pch_pfit
.enabled
||
4688 intel_crtc
->config
->pch_pfit
.force_thru
)
4689 mask
|= BIT(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe
));
4691 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
)
4692 mask
|= BIT(intel_display_port_power_domain(intel_encoder
));
4697 static void modeset_update_crtc_power_domains(struct drm_device
*dev
)
4699 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4700 unsigned long pipe_domains
[I915_MAX_PIPES
] = { 0, };
4701 struct intel_crtc
*crtc
;
4704 * First get all needed power domains, then put all unneeded, to avoid
4705 * any unnecessary toggling of the power wells.
4707 for_each_intel_crtc(dev
, crtc
) {
4708 enum intel_display_power_domain domain
;
4710 if (!crtc
->base
.enabled
)
4713 pipe_domains
[crtc
->pipe
] = get_crtc_power_domains(&crtc
->base
);
4715 for_each_power_domain(domain
, pipe_domains
[crtc
->pipe
])
4716 intel_display_power_get(dev_priv
, domain
);
4719 if (dev_priv
->display
.modeset_global_resources
)
4720 dev_priv
->display
.modeset_global_resources(dev
);
4722 for_each_intel_crtc(dev
, crtc
) {
4723 enum intel_display_power_domain domain
;
4725 for_each_power_domain(domain
, crtc
->enabled_power_domains
)
4726 intel_display_power_put(dev_priv
, domain
);
4728 crtc
->enabled_power_domains
= pipe_domains
[crtc
->pipe
];
4731 intel_display_set_init_power(dev_priv
, false);
4734 /* returns HPLL frequency in kHz */
4735 static int valleyview_get_vco(struct drm_i915_private
*dev_priv
)
4737 int hpll_freq
, vco_freq
[] = { 800, 1600, 2000, 2400 };
4739 /* Obtain SKU information */
4740 mutex_lock(&dev_priv
->dpio_lock
);
4741 hpll_freq
= vlv_cck_read(dev_priv
, CCK_FUSE_REG
) &
4742 CCK_FUSE_HPLL_FREQ_MASK
;
4743 mutex_unlock(&dev_priv
->dpio_lock
);
4745 return vco_freq
[hpll_freq
] * 1000;
4748 static void vlv_update_cdclk(struct drm_device
*dev
)
4750 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4752 dev_priv
->vlv_cdclk_freq
= dev_priv
->display
.get_display_clock_speed(dev
);
4753 DRM_DEBUG_DRIVER("Current CD clock rate: %d kHz\n",
4754 dev_priv
->vlv_cdclk_freq
);
4757 * Program the gmbus_freq based on the cdclk frequency.
4758 * BSpec erroneously claims we should aim for 4MHz, but
4759 * in fact 1MHz is the correct frequency.
4761 I915_WRITE(GMBUSFREQ_VLV
, DIV_ROUND_UP(dev_priv
->vlv_cdclk_freq
, 1000));
4764 /* Adjust CDclk dividers to allow high res or save power if possible */
4765 static void valleyview_set_cdclk(struct drm_device
*dev
, int cdclk
)
4767 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4770 WARN_ON(dev_priv
->display
.get_display_clock_speed(dev
) != dev_priv
->vlv_cdclk_freq
);
4772 if (cdclk
>= 320000) /* jump to highest voltage for 400MHz too */
4774 else if (cdclk
== 266667)
4779 mutex_lock(&dev_priv
->rps
.hw_lock
);
4780 val
= vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
);
4781 val
&= ~DSPFREQGUAR_MASK
;
4782 val
|= (cmd
<< DSPFREQGUAR_SHIFT
);
4783 vlv_punit_write(dev_priv
, PUNIT_REG_DSPFREQ
, val
);
4784 if (wait_for((vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
) &
4785 DSPFREQSTAT_MASK
) == (cmd
<< DSPFREQSTAT_SHIFT
),
4787 DRM_ERROR("timed out waiting for CDclk change\n");
4789 mutex_unlock(&dev_priv
->rps
.hw_lock
);
4791 if (cdclk
== 400000) {
4794 divider
= DIV_ROUND_CLOSEST(dev_priv
->hpll_freq
<< 1, cdclk
) - 1;
4796 mutex_lock(&dev_priv
->dpio_lock
);
4797 /* adjust cdclk divider */
4798 val
= vlv_cck_read(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
);
4799 val
&= ~DISPLAY_FREQUENCY_VALUES
;
4801 vlv_cck_write(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
, val
);
4803 if (wait_for((vlv_cck_read(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
) &
4804 DISPLAY_FREQUENCY_STATUS
) == (divider
<< DISPLAY_FREQUENCY_STATUS_SHIFT
),
4806 DRM_ERROR("timed out waiting for CDclk change\n");
4807 mutex_unlock(&dev_priv
->dpio_lock
);
4810 mutex_lock(&dev_priv
->dpio_lock
);
4811 /* adjust self-refresh exit latency value */
4812 val
= vlv_bunit_read(dev_priv
, BUNIT_REG_BISOC
);
4816 * For high bandwidth configs, we set a higher latency in the bunit
4817 * so that the core display fetch happens in time to avoid underruns.
4819 if (cdclk
== 400000)
4820 val
|= 4500 / 250; /* 4.5 usec */
4822 val
|= 3000 / 250; /* 3.0 usec */
4823 vlv_bunit_write(dev_priv
, BUNIT_REG_BISOC
, val
);
4824 mutex_unlock(&dev_priv
->dpio_lock
);
4826 vlv_update_cdclk(dev
);
4829 static void cherryview_set_cdclk(struct drm_device
*dev
, int cdclk
)
4831 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4834 WARN_ON(dev_priv
->display
.get_display_clock_speed(dev
) != dev_priv
->vlv_cdclk_freq
);
4851 MISSING_CASE(cdclk
);
4855 mutex_lock(&dev_priv
->rps
.hw_lock
);
4856 val
= vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
);
4857 val
&= ~DSPFREQGUAR_MASK_CHV
;
4858 val
|= (cmd
<< DSPFREQGUAR_SHIFT_CHV
);
4859 vlv_punit_write(dev_priv
, PUNIT_REG_DSPFREQ
, val
);
4860 if (wait_for((vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
) &
4861 DSPFREQSTAT_MASK_CHV
) == (cmd
<< DSPFREQSTAT_SHIFT_CHV
),
4863 DRM_ERROR("timed out waiting for CDclk change\n");
4865 mutex_unlock(&dev_priv
->rps
.hw_lock
);
4867 vlv_update_cdclk(dev
);
4870 static int valleyview_calc_cdclk(struct drm_i915_private
*dev_priv
,
4873 int freq_320
= (dev_priv
->hpll_freq
<< 1) % 320000 != 0 ? 333333 : 320000;
4875 /* FIXME: Punit isn't quite ready yet */
4876 if (IS_CHERRYVIEW(dev_priv
->dev
))
4880 * Really only a few cases to deal with, as only 4 CDclks are supported:
4883 * 320/333MHz (depends on HPLL freq)
4885 * So we check to see whether we're above 90% of the lower bin and
4888 * We seem to get an unstable or solid color picture at 200MHz.
4889 * Not sure what's wrong. For now use 200MHz only when all pipes
4892 if (max_pixclk
> freq_320
*9/10)
4894 else if (max_pixclk
> 266667*9/10)
4896 else if (max_pixclk
> 0)
4902 /* compute the max pixel clock for new configuration */
4903 static int intel_mode_max_pixclk(struct drm_i915_private
*dev_priv
)
4905 struct drm_device
*dev
= dev_priv
->dev
;
4906 struct intel_crtc
*intel_crtc
;
4909 for_each_intel_crtc(dev
, intel_crtc
) {
4910 if (intel_crtc
->new_enabled
)
4911 max_pixclk
= max(max_pixclk
,
4912 intel_crtc
->new_config
->base
.adjusted_mode
.crtc_clock
);
4918 static void valleyview_modeset_global_pipes(struct drm_device
*dev
,
4919 unsigned *prepare_pipes
)
4921 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4922 struct intel_crtc
*intel_crtc
;
4923 int max_pixclk
= intel_mode_max_pixclk(dev_priv
);
4925 if (valleyview_calc_cdclk(dev_priv
, max_pixclk
) ==
4926 dev_priv
->vlv_cdclk_freq
)
4929 /* disable/enable all currently active pipes while we change cdclk */
4930 for_each_intel_crtc(dev
, intel_crtc
)
4931 if (intel_crtc
->base
.enabled
)
4932 *prepare_pipes
|= (1 << intel_crtc
->pipe
);
4935 static void valleyview_modeset_global_resources(struct drm_device
*dev
)
4937 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4938 int max_pixclk
= intel_mode_max_pixclk(dev_priv
);
4939 int req_cdclk
= valleyview_calc_cdclk(dev_priv
, max_pixclk
);
4941 if (req_cdclk
!= dev_priv
->vlv_cdclk_freq
) {
4943 * FIXME: We can end up here with all power domains off, yet
4944 * with a CDCLK frequency other than the minimum. To account
4945 * for this take the PIPE-A power domain, which covers the HW
4946 * blocks needed for the following programming. This can be
4947 * removed once it's guaranteed that we get here either with
4948 * the minimum CDCLK set, or the required power domains
4951 intel_display_power_get(dev_priv
, POWER_DOMAIN_PIPE_A
);
4953 if (IS_CHERRYVIEW(dev
))
4954 cherryview_set_cdclk(dev
, req_cdclk
);
4956 valleyview_set_cdclk(dev
, req_cdclk
);
4958 intel_display_power_put(dev_priv
, POWER_DOMAIN_PIPE_A
);
4962 static void valleyview_crtc_enable(struct drm_crtc
*crtc
)
4964 struct drm_device
*dev
= crtc
->dev
;
4965 struct drm_i915_private
*dev_priv
= to_i915(dev
);
4966 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4967 struct intel_encoder
*encoder
;
4968 int pipe
= intel_crtc
->pipe
;
4971 WARN_ON(!crtc
->enabled
);
4973 if (intel_crtc
->active
)
4976 is_dsi
= intel_pipe_has_type(intel_crtc
, INTEL_OUTPUT_DSI
);
4979 if (IS_CHERRYVIEW(dev
))
4980 chv_prepare_pll(intel_crtc
, intel_crtc
->config
);
4982 vlv_prepare_pll(intel_crtc
, intel_crtc
->config
);
4985 if (intel_crtc
->config
->has_dp_encoder
)
4986 intel_dp_set_m_n(intel_crtc
);
4988 intel_set_pipe_timings(intel_crtc
);
4990 if (IS_CHERRYVIEW(dev
) && pipe
== PIPE_B
) {
4991 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4993 I915_WRITE(CHV_BLEND(pipe
), CHV_BLEND_LEGACY
);
4994 I915_WRITE(CHV_CANVAS(pipe
), 0);
4997 i9xx_set_pipeconf(intel_crtc
);
4999 intel_crtc
->active
= true;
5001 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5003 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5004 if (encoder
->pre_pll_enable
)
5005 encoder
->pre_pll_enable(encoder
);
5008 if (IS_CHERRYVIEW(dev
))
5009 chv_enable_pll(intel_crtc
, intel_crtc
->config
);
5011 vlv_enable_pll(intel_crtc
, intel_crtc
->config
);
5014 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5015 if (encoder
->pre_enable
)
5016 encoder
->pre_enable(encoder
);
5018 i9xx_pfit_enable(intel_crtc
);
5020 intel_crtc_load_lut(crtc
);
5022 intel_update_watermarks(crtc
);
5023 intel_enable_pipe(intel_crtc
);
5025 assert_vblank_disabled(crtc
);
5026 drm_crtc_vblank_on(crtc
);
5028 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5029 encoder
->enable(encoder
);
5031 intel_crtc_enable_planes(crtc
);
5033 /* Underruns don't raise interrupts, so check manually. */
5034 i9xx_check_fifo_underruns(dev_priv
);
5037 static void i9xx_set_pll_dividers(struct intel_crtc
*crtc
)
5039 struct drm_device
*dev
= crtc
->base
.dev
;
5040 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5042 I915_WRITE(FP0(crtc
->pipe
), crtc
->config
->dpll_hw_state
.fp0
);
5043 I915_WRITE(FP1(crtc
->pipe
), crtc
->config
->dpll_hw_state
.fp1
);
5046 static void i9xx_crtc_enable(struct drm_crtc
*crtc
)
5048 struct drm_device
*dev
= crtc
->dev
;
5049 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5050 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5051 struct intel_encoder
*encoder
;
5052 int pipe
= intel_crtc
->pipe
;
5054 WARN_ON(!crtc
->enabled
);
5056 if (intel_crtc
->active
)
5059 i9xx_set_pll_dividers(intel_crtc
);
5061 if (intel_crtc
->config
->has_dp_encoder
)
5062 intel_dp_set_m_n(intel_crtc
);
5064 intel_set_pipe_timings(intel_crtc
);
5066 i9xx_set_pipeconf(intel_crtc
);
5068 intel_crtc
->active
= true;
5071 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5073 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5074 if (encoder
->pre_enable
)
5075 encoder
->pre_enable(encoder
);
5077 i9xx_enable_pll(intel_crtc
);
5079 i9xx_pfit_enable(intel_crtc
);
5081 intel_crtc_load_lut(crtc
);
5083 intel_update_watermarks(crtc
);
5084 intel_enable_pipe(intel_crtc
);
5086 assert_vblank_disabled(crtc
);
5087 drm_crtc_vblank_on(crtc
);
5089 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5090 encoder
->enable(encoder
);
5092 intel_crtc_enable_planes(crtc
);
5095 * Gen2 reports pipe underruns whenever all planes are disabled.
5096 * So don't enable underrun reporting before at least some planes
5098 * FIXME: Need to fix the logic to work when we turn off all planes
5099 * but leave the pipe running.
5102 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5104 /* Underruns don't raise interrupts, so check manually. */
5105 i9xx_check_fifo_underruns(dev_priv
);
5108 static void i9xx_pfit_disable(struct intel_crtc
*crtc
)
5110 struct drm_device
*dev
= crtc
->base
.dev
;
5111 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5113 if (!crtc
->config
->gmch_pfit
.control
)
5116 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
5118 DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n",
5119 I915_READ(PFIT_CONTROL
));
5120 I915_WRITE(PFIT_CONTROL
, 0);
5123 static void i9xx_crtc_disable(struct drm_crtc
*crtc
)
5125 struct drm_device
*dev
= crtc
->dev
;
5126 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5127 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5128 struct intel_encoder
*encoder
;
5129 int pipe
= intel_crtc
->pipe
;
5131 if (!intel_crtc
->active
)
5135 * Gen2 reports pipe underruns whenever all planes are disabled.
5136 * So diasble underrun reporting before all the planes get disabled.
5137 * FIXME: Need to fix the logic to work when we turn off all planes
5138 * but leave the pipe running.
5141 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, false);
5144 * Vblank time updates from the shadow to live plane control register
5145 * are blocked if the memory self-refresh mode is active at that
5146 * moment. So to make sure the plane gets truly disabled, disable
5147 * first the self-refresh mode. The self-refresh enable bit in turn
5148 * will be checked/applied by the HW only at the next frame start
5149 * event which is after the vblank start event, so we need to have a
5150 * wait-for-vblank between disabling the plane and the pipe.
5152 intel_set_memory_cxsr(dev_priv
, false);
5153 intel_crtc_disable_planes(crtc
);
5156 * On gen2 planes are double buffered but the pipe isn't, so we must
5157 * wait for planes to fully turn off before disabling the pipe.
5158 * We also need to wait on all gmch platforms because of the
5159 * self-refresh mode constraint explained above.
5161 intel_wait_for_vblank(dev
, pipe
);
5163 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5164 encoder
->disable(encoder
);
5166 drm_crtc_vblank_off(crtc
);
5167 assert_vblank_disabled(crtc
);
5169 intel_disable_pipe(intel_crtc
);
5171 i9xx_pfit_disable(intel_crtc
);
5173 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5174 if (encoder
->post_disable
)
5175 encoder
->post_disable(encoder
);
5177 if (!intel_pipe_has_type(intel_crtc
, INTEL_OUTPUT_DSI
)) {
5178 if (IS_CHERRYVIEW(dev
))
5179 chv_disable_pll(dev_priv
, pipe
);
5180 else if (IS_VALLEYVIEW(dev
))
5181 vlv_disable_pll(dev_priv
, pipe
);
5183 i9xx_disable_pll(intel_crtc
);
5187 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, false);
5189 intel_crtc
->active
= false;
5190 intel_update_watermarks(crtc
);
5192 mutex_lock(&dev
->struct_mutex
);
5193 intel_fbc_update(dev
);
5194 mutex_unlock(&dev
->struct_mutex
);
5197 static void i9xx_crtc_off(struct drm_crtc
*crtc
)
5201 /* Master function to enable/disable CRTC and corresponding power wells */
5202 void intel_crtc_control(struct drm_crtc
*crtc
, bool enable
)
5204 struct drm_device
*dev
= crtc
->dev
;
5205 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5206 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5207 enum intel_display_power_domain domain
;
5208 unsigned long domains
;
5211 if (!intel_crtc
->active
) {
5212 domains
= get_crtc_power_domains(crtc
);
5213 for_each_power_domain(domain
, domains
)
5214 intel_display_power_get(dev_priv
, domain
);
5215 intel_crtc
->enabled_power_domains
= domains
;
5217 dev_priv
->display
.crtc_enable(crtc
);
5220 if (intel_crtc
->active
) {
5221 dev_priv
->display
.crtc_disable(crtc
);
5223 domains
= intel_crtc
->enabled_power_domains
;
5224 for_each_power_domain(domain
, domains
)
5225 intel_display_power_put(dev_priv
, domain
);
5226 intel_crtc
->enabled_power_domains
= 0;
5232 * Sets the power management mode of the pipe and plane.
5234 void intel_crtc_update_dpms(struct drm_crtc
*crtc
)
5236 struct drm_device
*dev
= crtc
->dev
;
5237 struct intel_encoder
*intel_encoder
;
5238 bool enable
= false;
5240 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
)
5241 enable
|= intel_encoder
->connectors_active
;
5243 intel_crtc_control(crtc
, enable
);
5246 static void intel_crtc_disable(struct drm_crtc
*crtc
)
5248 struct drm_device
*dev
= crtc
->dev
;
5249 struct drm_connector
*connector
;
5250 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5252 /* crtc should still be enabled when we disable it. */
5253 WARN_ON(!crtc
->enabled
);
5255 dev_priv
->display
.crtc_disable(crtc
);
5256 dev_priv
->display
.off(crtc
);
5258 crtc
->primary
->funcs
->disable_plane(crtc
->primary
);
5260 /* Update computed state. */
5261 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
5262 if (!connector
->encoder
|| !connector
->encoder
->crtc
)
5265 if (connector
->encoder
->crtc
!= crtc
)
5268 connector
->dpms
= DRM_MODE_DPMS_OFF
;
5269 to_intel_encoder(connector
->encoder
)->connectors_active
= false;
5273 void intel_encoder_destroy(struct drm_encoder
*encoder
)
5275 struct intel_encoder
*intel_encoder
= to_intel_encoder(encoder
);
5277 drm_encoder_cleanup(encoder
);
5278 kfree(intel_encoder
);
5281 /* Simple dpms helper for encoders with just one connector, no cloning and only
5282 * one kind of off state. It clamps all !ON modes to fully OFF and changes the
5283 * state of the entire output pipe. */
5284 static void intel_encoder_dpms(struct intel_encoder
*encoder
, int mode
)
5286 if (mode
== DRM_MODE_DPMS_ON
) {
5287 encoder
->connectors_active
= true;
5289 intel_crtc_update_dpms(encoder
->base
.crtc
);
5291 encoder
->connectors_active
= false;
5293 intel_crtc_update_dpms(encoder
->base
.crtc
);
5297 /* Cross check the actual hw state with our own modeset state tracking (and it's
5298 * internal consistency). */
5299 static void intel_connector_check_state(struct intel_connector
*connector
)
5301 if (connector
->get_hw_state(connector
)) {
5302 struct intel_encoder
*encoder
= connector
->encoder
;
5303 struct drm_crtc
*crtc
;
5304 bool encoder_enabled
;
5307 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
5308 connector
->base
.base
.id
,
5309 connector
->base
.name
);
5311 /* there is no real hw state for MST connectors */
5312 if (connector
->mst_port
)
5315 I915_STATE_WARN(connector
->base
.dpms
== DRM_MODE_DPMS_OFF
,
5316 "wrong connector dpms state\n");
5317 I915_STATE_WARN(connector
->base
.encoder
!= &encoder
->base
,
5318 "active connector not linked to encoder\n");
5321 I915_STATE_WARN(!encoder
->connectors_active
,
5322 "encoder->connectors_active not set\n");
5324 encoder_enabled
= encoder
->get_hw_state(encoder
, &pipe
);
5325 I915_STATE_WARN(!encoder_enabled
, "encoder not enabled\n");
5326 if (I915_STATE_WARN_ON(!encoder
->base
.crtc
))
5329 crtc
= encoder
->base
.crtc
;
5331 I915_STATE_WARN(!crtc
->enabled
, "crtc not enabled\n");
5332 I915_STATE_WARN(!to_intel_crtc(crtc
)->active
, "crtc not active\n");
5333 I915_STATE_WARN(pipe
!= to_intel_crtc(crtc
)->pipe
,
5334 "encoder active on the wrong pipe\n");
5339 /* Even simpler default implementation, if there's really no special case to
5341 void intel_connector_dpms(struct drm_connector
*connector
, int mode
)
5343 /* All the simple cases only support two dpms states. */
5344 if (mode
!= DRM_MODE_DPMS_ON
)
5345 mode
= DRM_MODE_DPMS_OFF
;
5347 if (mode
== connector
->dpms
)
5350 connector
->dpms
= mode
;
5352 /* Only need to change hw state when actually enabled */
5353 if (connector
->encoder
)
5354 intel_encoder_dpms(to_intel_encoder(connector
->encoder
), mode
);
5356 intel_modeset_check_state(connector
->dev
);
5359 /* Simple connector->get_hw_state implementation for encoders that support only
5360 * one connector and no cloning and hence the encoder state determines the state
5361 * of the connector. */
5362 bool intel_connector_get_hw_state(struct intel_connector
*connector
)
5365 struct intel_encoder
*encoder
= connector
->encoder
;
5367 return encoder
->get_hw_state(encoder
, &pipe
);
5370 static bool ironlake_check_fdi_lanes(struct drm_device
*dev
, enum pipe pipe
,
5371 struct intel_crtc_state
*pipe_config
)
5373 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5374 struct intel_crtc
*pipe_B_crtc
=
5375 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[PIPE_B
]);
5377 DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n",
5378 pipe_name(pipe
), pipe_config
->fdi_lanes
);
5379 if (pipe_config
->fdi_lanes
> 4) {
5380 DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n",
5381 pipe_name(pipe
), pipe_config
->fdi_lanes
);
5385 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
5386 if (pipe_config
->fdi_lanes
> 2) {
5387 DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n",
5388 pipe_config
->fdi_lanes
);
5395 if (INTEL_INFO(dev
)->num_pipes
== 2)
5398 /* Ivybridge 3 pipe is really complicated */
5403 if (dev_priv
->pipe_to_crtc_mapping
[PIPE_C
]->enabled
&&
5404 pipe_config
->fdi_lanes
> 2) {
5405 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
5406 pipe_name(pipe
), pipe_config
->fdi_lanes
);
5411 if (!pipe_has_enabled_pch(pipe_B_crtc
) ||
5412 pipe_B_crtc
->config
->fdi_lanes
<= 2) {
5413 if (pipe_config
->fdi_lanes
> 2) {
5414 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
5415 pipe_name(pipe
), pipe_config
->fdi_lanes
);
5419 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
5429 static int ironlake_fdi_compute_config(struct intel_crtc
*intel_crtc
,
5430 struct intel_crtc_state
*pipe_config
)
5432 struct drm_device
*dev
= intel_crtc
->base
.dev
;
5433 struct drm_display_mode
*adjusted_mode
= &pipe_config
->base
.adjusted_mode
;
5434 int lane
, link_bw
, fdi_dotclock
;
5435 bool setup_ok
, needs_recompute
= false;
5438 /* FDI is a binary signal running at ~2.7GHz, encoding
5439 * each output octet as 10 bits. The actual frequency
5440 * is stored as a divider into a 100MHz clock, and the
5441 * mode pixel clock is stored in units of 1KHz.
5442 * Hence the bw of each lane in terms of the mode signal
5445 link_bw
= intel_fdi_link_freq(dev
) * MHz(100)/KHz(1)/10;
5447 fdi_dotclock
= adjusted_mode
->crtc_clock
;
5449 lane
= ironlake_get_lanes_required(fdi_dotclock
, link_bw
,
5450 pipe_config
->pipe_bpp
);
5452 pipe_config
->fdi_lanes
= lane
;
5454 intel_link_compute_m_n(pipe_config
->pipe_bpp
, lane
, fdi_dotclock
,
5455 link_bw
, &pipe_config
->fdi_m_n
);
5457 setup_ok
= ironlake_check_fdi_lanes(intel_crtc
->base
.dev
,
5458 intel_crtc
->pipe
, pipe_config
);
5459 if (!setup_ok
&& pipe_config
->pipe_bpp
> 6*3) {
5460 pipe_config
->pipe_bpp
-= 2*3;
5461 DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n",
5462 pipe_config
->pipe_bpp
);
5463 needs_recompute
= true;
5464 pipe_config
->bw_constrained
= true;
5469 if (needs_recompute
)
5472 return setup_ok
? 0 : -EINVAL
;
5475 static void hsw_compute_ips_config(struct intel_crtc
*crtc
,
5476 struct intel_crtc_state
*pipe_config
)
5478 pipe_config
->ips_enabled
= i915
.enable_ips
&&
5479 hsw_crtc_supports_ips(crtc
) &&
5480 pipe_config
->pipe_bpp
<= 24;
5483 static int intel_crtc_compute_config(struct intel_crtc
*crtc
,
5484 struct intel_crtc_state
*pipe_config
)
5486 struct drm_device
*dev
= crtc
->base
.dev
;
5487 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5488 struct drm_display_mode
*adjusted_mode
= &pipe_config
->base
.adjusted_mode
;
5490 /* FIXME should check pixel clock limits on all platforms */
5491 if (INTEL_INFO(dev
)->gen
< 4) {
5493 dev_priv
->display
.get_display_clock_speed(dev
);
5496 * Enable pixel doubling when the dot clock
5497 * is > 90% of the (display) core speed.
5499 * GDG double wide on either pipe,
5500 * otherwise pipe A only.
5502 if ((crtc
->pipe
== PIPE_A
|| IS_I915G(dev
)) &&
5503 adjusted_mode
->crtc_clock
> clock_limit
* 9 / 10) {
5505 pipe_config
->double_wide
= true;
5508 if (adjusted_mode
->crtc_clock
> clock_limit
* 9 / 10)
5513 * Pipe horizontal size must be even in:
5515 * - LVDS dual channel mode
5516 * - Double wide pipe
5518 if ((intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) &&
5519 intel_is_dual_link_lvds(dev
)) || pipe_config
->double_wide
)
5520 pipe_config
->pipe_src_w
&= ~1;
5522 /* Cantiga+ cannot handle modes with a hsync front porch of 0.
5523 * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw.
5525 if ((INTEL_INFO(dev
)->gen
> 4 || IS_G4X(dev
)) &&
5526 adjusted_mode
->hsync_start
== adjusted_mode
->hdisplay
)
5529 if ((IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) && pipe_config
->pipe_bpp
> 10*3) {
5530 pipe_config
->pipe_bpp
= 10*3; /* 12bpc is gen5+ */
5531 } else if (INTEL_INFO(dev
)->gen
<= 4 && pipe_config
->pipe_bpp
> 8*3) {
5532 /* only a 8bpc pipe, with 6bpc dither through the panel fitter
5534 pipe_config
->pipe_bpp
= 8*3;
5538 hsw_compute_ips_config(crtc
, pipe_config
);
5540 if (pipe_config
->has_pch_encoder
)
5541 return ironlake_fdi_compute_config(crtc
, pipe_config
);
5546 static int valleyview_get_display_clock_speed(struct drm_device
*dev
)
5548 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5552 /* FIXME: Punit isn't quite ready yet */
5553 if (IS_CHERRYVIEW(dev
))
5556 if (dev_priv
->hpll_freq
== 0)
5557 dev_priv
->hpll_freq
= valleyview_get_vco(dev_priv
);
5559 mutex_lock(&dev_priv
->dpio_lock
);
5560 val
= vlv_cck_read(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
);
5561 mutex_unlock(&dev_priv
->dpio_lock
);
5563 divider
= val
& DISPLAY_FREQUENCY_VALUES
;
5565 WARN((val
& DISPLAY_FREQUENCY_STATUS
) !=
5566 (divider
<< DISPLAY_FREQUENCY_STATUS_SHIFT
),
5567 "cdclk change in progress\n");
5569 return DIV_ROUND_CLOSEST(dev_priv
->hpll_freq
<< 1, divider
+ 1);
5572 static int i945_get_display_clock_speed(struct drm_device
*dev
)
5577 static int i915_get_display_clock_speed(struct drm_device
*dev
)
5582 static int i9xx_misc_get_display_clock_speed(struct drm_device
*dev
)
5587 static int pnv_get_display_clock_speed(struct drm_device
*dev
)
5591 pci_read_config_word(dev
->pdev
, GCFGC
, &gcfgc
);
5593 switch (gcfgc
& GC_DISPLAY_CLOCK_MASK
) {
5594 case GC_DISPLAY_CLOCK_267_MHZ_PNV
:
5596 case GC_DISPLAY_CLOCK_333_MHZ_PNV
:
5598 case GC_DISPLAY_CLOCK_444_MHZ_PNV
:
5600 case GC_DISPLAY_CLOCK_200_MHZ_PNV
:
5603 DRM_ERROR("Unknown pnv display core clock 0x%04x\n", gcfgc
);
5604 case GC_DISPLAY_CLOCK_133_MHZ_PNV
:
5606 case GC_DISPLAY_CLOCK_167_MHZ_PNV
:
5611 static int i915gm_get_display_clock_speed(struct drm_device
*dev
)
5615 pci_read_config_word(dev
->pdev
, GCFGC
, &gcfgc
);
5617 if (gcfgc
& GC_LOW_FREQUENCY_ENABLE
)
5620 switch (gcfgc
& GC_DISPLAY_CLOCK_MASK
) {
5621 case GC_DISPLAY_CLOCK_333_MHZ
:
5624 case GC_DISPLAY_CLOCK_190_200_MHZ
:
5630 static int i865_get_display_clock_speed(struct drm_device
*dev
)
5635 static int i855_get_display_clock_speed(struct drm_device
*dev
)
5638 /* Assume that the hardware is in the high speed state. This
5639 * should be the default.
5641 switch (hpllcc
& GC_CLOCK_CONTROL_MASK
) {
5642 case GC_CLOCK_133_200
:
5643 case GC_CLOCK_100_200
:
5645 case GC_CLOCK_166_250
:
5647 case GC_CLOCK_100_133
:
5651 /* Shouldn't happen */
5655 static int i830_get_display_clock_speed(struct drm_device
*dev
)
5661 intel_reduce_m_n_ratio(uint32_t *num
, uint32_t *den
)
5663 while (*num
> DATA_LINK_M_N_MASK
||
5664 *den
> DATA_LINK_M_N_MASK
) {
5670 static void compute_m_n(unsigned int m
, unsigned int n
,
5671 uint32_t *ret_m
, uint32_t *ret_n
)
5673 *ret_n
= min_t(unsigned int, roundup_pow_of_two(n
), DATA_LINK_N_MAX
);
5674 *ret_m
= div_u64((uint64_t) m
* *ret_n
, n
);
5675 intel_reduce_m_n_ratio(ret_m
, ret_n
);
5679 intel_link_compute_m_n(int bits_per_pixel
, int nlanes
,
5680 int pixel_clock
, int link_clock
,
5681 struct intel_link_m_n
*m_n
)
5685 compute_m_n(bits_per_pixel
* pixel_clock
,
5686 link_clock
* nlanes
* 8,
5687 &m_n
->gmch_m
, &m_n
->gmch_n
);
5689 compute_m_n(pixel_clock
, link_clock
,
5690 &m_n
->link_m
, &m_n
->link_n
);
5693 static inline bool intel_panel_use_ssc(struct drm_i915_private
*dev_priv
)
5695 if (i915
.panel_use_ssc
>= 0)
5696 return i915
.panel_use_ssc
!= 0;
5697 return dev_priv
->vbt
.lvds_use_ssc
5698 && !(dev_priv
->quirks
& QUIRK_LVDS_SSC_DISABLE
);
5701 static int i9xx_get_refclk(struct intel_crtc
*crtc
, int num_connectors
)
5703 struct drm_device
*dev
= crtc
->base
.dev
;
5704 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5707 if (IS_VALLEYVIEW(dev
)) {
5709 } else if (intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_LVDS
) &&
5710 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2) {
5711 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
5712 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk
);
5713 } else if (!IS_GEN2(dev
)) {
5722 static uint32_t pnv_dpll_compute_fp(struct dpll
*dpll
)
5724 return (1 << dpll
->n
) << 16 | dpll
->m2
;
5727 static uint32_t i9xx_dpll_compute_fp(struct dpll
*dpll
)
5729 return dpll
->n
<< 16 | dpll
->m1
<< 8 | dpll
->m2
;
5732 static void i9xx_update_pll_dividers(struct intel_crtc
*crtc
,
5733 struct intel_crtc_state
*crtc_state
,
5734 intel_clock_t
*reduced_clock
)
5736 struct drm_device
*dev
= crtc
->base
.dev
;
5739 if (IS_PINEVIEW(dev
)) {
5740 fp
= pnv_dpll_compute_fp(&crtc_state
->dpll
);
5742 fp2
= pnv_dpll_compute_fp(reduced_clock
);
5744 fp
= i9xx_dpll_compute_fp(&crtc_state
->dpll
);
5746 fp2
= i9xx_dpll_compute_fp(reduced_clock
);
5749 crtc_state
->dpll_hw_state
.fp0
= fp
;
5751 crtc
->lowfreq_avail
= false;
5752 if (intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_LVDS
) &&
5753 reduced_clock
&& i915
.powersave
) {
5754 crtc_state
->dpll_hw_state
.fp1
= fp2
;
5755 crtc
->lowfreq_avail
= true;
5757 crtc_state
->dpll_hw_state
.fp1
= fp
;
5761 static void vlv_pllb_recal_opamp(struct drm_i915_private
*dev_priv
, enum pipe
5767 * PLLB opamp always calibrates to max value of 0x3f, force enable it
5768 * and set it to a reasonable value instead.
5770 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW9(1));
5771 reg_val
&= 0xffffff00;
5772 reg_val
|= 0x00000030;
5773 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9(1), reg_val
);
5775 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_REF_DW13
);
5776 reg_val
&= 0x8cffffff;
5777 reg_val
= 0x8c000000;
5778 vlv_dpio_write(dev_priv
, pipe
, VLV_REF_DW13
, reg_val
);
5780 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW9(1));
5781 reg_val
&= 0xffffff00;
5782 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9(1), reg_val
);
5784 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_REF_DW13
);
5785 reg_val
&= 0x00ffffff;
5786 reg_val
|= 0xb0000000;
5787 vlv_dpio_write(dev_priv
, pipe
, VLV_REF_DW13
, reg_val
);
5790 static void intel_pch_transcoder_set_m_n(struct intel_crtc
*crtc
,
5791 struct intel_link_m_n
*m_n
)
5793 struct drm_device
*dev
= crtc
->base
.dev
;
5794 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5795 int pipe
= crtc
->pipe
;
5797 I915_WRITE(PCH_TRANS_DATA_M1(pipe
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
5798 I915_WRITE(PCH_TRANS_DATA_N1(pipe
), m_n
->gmch_n
);
5799 I915_WRITE(PCH_TRANS_LINK_M1(pipe
), m_n
->link_m
);
5800 I915_WRITE(PCH_TRANS_LINK_N1(pipe
), m_n
->link_n
);
5803 static void intel_cpu_transcoder_set_m_n(struct intel_crtc
*crtc
,
5804 struct intel_link_m_n
*m_n
,
5805 struct intel_link_m_n
*m2_n2
)
5807 struct drm_device
*dev
= crtc
->base
.dev
;
5808 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5809 int pipe
= crtc
->pipe
;
5810 enum transcoder transcoder
= crtc
->config
->cpu_transcoder
;
5812 if (INTEL_INFO(dev
)->gen
>= 5) {
5813 I915_WRITE(PIPE_DATA_M1(transcoder
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
5814 I915_WRITE(PIPE_DATA_N1(transcoder
), m_n
->gmch_n
);
5815 I915_WRITE(PIPE_LINK_M1(transcoder
), m_n
->link_m
);
5816 I915_WRITE(PIPE_LINK_N1(transcoder
), m_n
->link_n
);
5817 /* M2_N2 registers to be set only for gen < 8 (M2_N2 available
5818 * for gen < 8) and if DRRS is supported (to make sure the
5819 * registers are not unnecessarily accessed).
5821 if (m2_n2
&& INTEL_INFO(dev
)->gen
< 8 &&
5822 crtc
->config
->has_drrs
) {
5823 I915_WRITE(PIPE_DATA_M2(transcoder
),
5824 TU_SIZE(m2_n2
->tu
) | m2_n2
->gmch_m
);
5825 I915_WRITE(PIPE_DATA_N2(transcoder
), m2_n2
->gmch_n
);
5826 I915_WRITE(PIPE_LINK_M2(transcoder
), m2_n2
->link_m
);
5827 I915_WRITE(PIPE_LINK_N2(transcoder
), m2_n2
->link_n
);
5830 I915_WRITE(PIPE_DATA_M_G4X(pipe
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
5831 I915_WRITE(PIPE_DATA_N_G4X(pipe
), m_n
->gmch_n
);
5832 I915_WRITE(PIPE_LINK_M_G4X(pipe
), m_n
->link_m
);
5833 I915_WRITE(PIPE_LINK_N_G4X(pipe
), m_n
->link_n
);
5837 void intel_dp_set_m_n(struct intel_crtc
*crtc
)
5839 if (crtc
->config
->has_pch_encoder
)
5840 intel_pch_transcoder_set_m_n(crtc
, &crtc
->config
->dp_m_n
);
5842 intel_cpu_transcoder_set_m_n(crtc
, &crtc
->config
->dp_m_n
,
5843 &crtc
->config
->dp_m2_n2
);
5846 static void vlv_update_pll(struct intel_crtc
*crtc
,
5847 struct intel_crtc_state
*pipe_config
)
5852 * Enable DPIO clock input. We should never disable the reference
5853 * clock for pipe B, since VGA hotplug / manual detection depends
5856 dpll
= DPLL_EXT_BUFFER_ENABLE_VLV
| DPLL_REFA_CLK_ENABLE_VLV
|
5857 DPLL_VGA_MODE_DIS
| DPLL_INTEGRATED_CLOCK_VLV
;
5858 /* We should never disable this, set it here for state tracking */
5859 if (crtc
->pipe
== PIPE_B
)
5860 dpll
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
5861 dpll
|= DPLL_VCO_ENABLE
;
5862 pipe_config
->dpll_hw_state
.dpll
= dpll
;
5864 dpll_md
= (pipe_config
->pixel_multiplier
- 1)
5865 << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
5866 pipe_config
->dpll_hw_state
.dpll_md
= dpll_md
;
5869 static void vlv_prepare_pll(struct intel_crtc
*crtc
,
5870 const struct intel_crtc_state
*pipe_config
)
5872 struct drm_device
*dev
= crtc
->base
.dev
;
5873 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5874 int pipe
= crtc
->pipe
;
5876 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
;
5877 u32 coreclk
, reg_val
;
5879 mutex_lock(&dev_priv
->dpio_lock
);
5881 bestn
= pipe_config
->dpll
.n
;
5882 bestm1
= pipe_config
->dpll
.m1
;
5883 bestm2
= pipe_config
->dpll
.m2
;
5884 bestp1
= pipe_config
->dpll
.p1
;
5885 bestp2
= pipe_config
->dpll
.p2
;
5887 /* See eDP HDMI DPIO driver vbios notes doc */
5889 /* PLL B needs special handling */
5891 vlv_pllb_recal_opamp(dev_priv
, pipe
);
5893 /* Set up Tx target for periodic Rcomp update */
5894 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9_BCAST
, 0x0100000f);
5896 /* Disable target IRef on PLL */
5897 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW8(pipe
));
5898 reg_val
&= 0x00ffffff;
5899 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW8(pipe
), reg_val
);
5901 /* Disable fast lock */
5902 vlv_dpio_write(dev_priv
, pipe
, VLV_CMN_DW0
, 0x610);
5904 /* Set idtafcrecal before PLL is enabled */
5905 mdiv
= ((bestm1
<< DPIO_M1DIV_SHIFT
) | (bestm2
& DPIO_M2DIV_MASK
));
5906 mdiv
|= ((bestp1
<< DPIO_P1_SHIFT
) | (bestp2
<< DPIO_P2_SHIFT
));
5907 mdiv
|= ((bestn
<< DPIO_N_SHIFT
));
5908 mdiv
|= (1 << DPIO_K_SHIFT
);
5911 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
5912 * but we don't support that).
5913 * Note: don't use the DAC post divider as it seems unstable.
5915 mdiv
|= (DPIO_POST_DIV_HDMIDP
<< DPIO_POST_DIV_SHIFT
);
5916 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW3(pipe
), mdiv
);
5918 mdiv
|= DPIO_ENABLE_CALIBRATION
;
5919 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW3(pipe
), mdiv
);
5921 /* Set HBR and RBR LPF coefficients */
5922 if (pipe_config
->port_clock
== 162000 ||
5923 intel_pipe_has_type(crtc
, INTEL_OUTPUT_ANALOG
) ||
5924 intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
))
5925 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW10(pipe
),
5928 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW10(pipe
),
5931 if (pipe_config
->has_dp_encoder
) {
5932 /* Use SSC source */
5934 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
5937 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
5939 } else { /* HDMI or VGA */
5940 /* Use bend source */
5942 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
5945 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
5949 coreclk
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW7(pipe
));
5950 coreclk
= (coreclk
& 0x0000ff00) | 0x01c00000;
5951 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
) ||
5952 intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
))
5953 coreclk
|= 0x01000000;
5954 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW7(pipe
), coreclk
);
5956 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW11(pipe
), 0x87871000);
5957 mutex_unlock(&dev_priv
->dpio_lock
);
5960 static void chv_update_pll(struct intel_crtc
*crtc
,
5961 struct intel_crtc_state
*pipe_config
)
5963 pipe_config
->dpll_hw_state
.dpll
= DPLL_SSC_REF_CLOCK_CHV
|
5964 DPLL_REFA_CLK_ENABLE_VLV
| DPLL_VGA_MODE_DIS
|
5966 if (crtc
->pipe
!= PIPE_A
)
5967 pipe_config
->dpll_hw_state
.dpll
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
5969 pipe_config
->dpll_hw_state
.dpll_md
=
5970 (pipe_config
->pixel_multiplier
- 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
5973 static void chv_prepare_pll(struct intel_crtc
*crtc
,
5974 const struct intel_crtc_state
*pipe_config
)
5976 struct drm_device
*dev
= crtc
->base
.dev
;
5977 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5978 int pipe
= crtc
->pipe
;
5979 int dpll_reg
= DPLL(crtc
->pipe
);
5980 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
5981 u32 loopfilter
, intcoeff
;
5982 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
, bestm2_frac
;
5985 bestn
= pipe_config
->dpll
.n
;
5986 bestm2_frac
= pipe_config
->dpll
.m2
& 0x3fffff;
5987 bestm1
= pipe_config
->dpll
.m1
;
5988 bestm2
= pipe_config
->dpll
.m2
>> 22;
5989 bestp1
= pipe_config
->dpll
.p1
;
5990 bestp2
= pipe_config
->dpll
.p2
;
5993 * Enable Refclk and SSC
5995 I915_WRITE(dpll_reg
,
5996 pipe_config
->dpll_hw_state
.dpll
& ~DPLL_VCO_ENABLE
);
5998 mutex_lock(&dev_priv
->dpio_lock
);
6000 /* p1 and p2 divider */
6001 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW13(port
),
6002 5 << DPIO_CHV_S1_DIV_SHIFT
|
6003 bestp1
<< DPIO_CHV_P1_DIV_SHIFT
|
6004 bestp2
<< DPIO_CHV_P2_DIV_SHIFT
|
6005 1 << DPIO_CHV_K_DIV_SHIFT
);
6007 /* Feedback post-divider - m2 */
6008 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW0(port
), bestm2
);
6010 /* Feedback refclk divider - n and m1 */
6011 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW1(port
),
6012 DPIO_CHV_M1_DIV_BY_2
|
6013 1 << DPIO_CHV_N_DIV_SHIFT
);
6015 /* M2 fraction division */
6016 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW2(port
), bestm2_frac
);
6018 /* M2 fraction division enable */
6019 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW3(port
),
6020 DPIO_CHV_FRAC_DIV_EN
|
6021 (2 << DPIO_CHV_FEEDFWD_GAIN_SHIFT
));
6024 refclk
= i9xx_get_refclk(crtc
, 0);
6025 loopfilter
= 5 << DPIO_CHV_PROP_COEFF_SHIFT
|
6026 2 << DPIO_CHV_GAIN_CTRL_SHIFT
;
6027 if (refclk
== 100000)
6029 else if (refclk
== 38400)
6033 loopfilter
|= intcoeff
<< DPIO_CHV_INT_COEFF_SHIFT
;
6034 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW6(port
), loopfilter
);
6037 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
),
6038 vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
)) |
6041 mutex_unlock(&dev_priv
->dpio_lock
);
6045 * vlv_force_pll_on - forcibly enable just the PLL
6046 * @dev_priv: i915 private structure
6047 * @pipe: pipe PLL to enable
6048 * @dpll: PLL configuration
6050 * Enable the PLL for @pipe using the supplied @dpll config. To be used
6051 * in cases where we need the PLL enabled even when @pipe is not going to
6054 void vlv_force_pll_on(struct drm_device
*dev
, enum pipe pipe
,
6055 const struct dpll
*dpll
)
6057 struct intel_crtc
*crtc
=
6058 to_intel_crtc(intel_get_crtc_for_pipe(dev
, pipe
));
6059 struct intel_crtc_state pipe_config
= {
6060 .pixel_multiplier
= 1,
6064 if (IS_CHERRYVIEW(dev
)) {
6065 chv_update_pll(crtc
, &pipe_config
);
6066 chv_prepare_pll(crtc
, &pipe_config
);
6067 chv_enable_pll(crtc
, &pipe_config
);
6069 vlv_update_pll(crtc
, &pipe_config
);
6070 vlv_prepare_pll(crtc
, &pipe_config
);
6071 vlv_enable_pll(crtc
, &pipe_config
);
6076 * vlv_force_pll_off - forcibly disable just the PLL
6077 * @dev_priv: i915 private structure
6078 * @pipe: pipe PLL to disable
6080 * Disable the PLL for @pipe. To be used in cases where we need
6081 * the PLL enabled even when @pipe is not going to be enabled.
6083 void vlv_force_pll_off(struct drm_device
*dev
, enum pipe pipe
)
6085 if (IS_CHERRYVIEW(dev
))
6086 chv_disable_pll(to_i915(dev
), pipe
);
6088 vlv_disable_pll(to_i915(dev
), pipe
);
6091 static void i9xx_update_pll(struct intel_crtc
*crtc
,
6092 struct intel_crtc_state
*crtc_state
,
6093 intel_clock_t
*reduced_clock
,
6096 struct drm_device
*dev
= crtc
->base
.dev
;
6097 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6100 struct dpll
*clock
= &crtc_state
->dpll
;
6102 i9xx_update_pll_dividers(crtc
, crtc_state
, reduced_clock
);
6104 is_sdvo
= intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_SDVO
) ||
6105 intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_HDMI
);
6107 dpll
= DPLL_VGA_MODE_DIS
;
6109 if (intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_LVDS
))
6110 dpll
|= DPLLB_MODE_LVDS
;
6112 dpll
|= DPLLB_MODE_DAC_SERIAL
;
6114 if (IS_I945G(dev
) || IS_I945GM(dev
) || IS_G33(dev
)) {
6115 dpll
|= (crtc_state
->pixel_multiplier
- 1)
6116 << SDVO_MULTIPLIER_SHIFT_HIRES
;
6120 dpll
|= DPLL_SDVO_HIGH_SPEED
;
6122 if (crtc_state
->has_dp_encoder
)
6123 dpll
|= DPLL_SDVO_HIGH_SPEED
;
6125 /* compute bitmask from p1 value */
6126 if (IS_PINEVIEW(dev
))
6127 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
;
6129 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
6130 if (IS_G4X(dev
) && reduced_clock
)
6131 dpll
|= (1 << (reduced_clock
->p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
6133 switch (clock
->p2
) {
6135 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
6138 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
6141 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
6144 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
6147 if (INTEL_INFO(dev
)->gen
>= 4)
6148 dpll
|= (6 << PLL_LOAD_PULSE_PHASE_SHIFT
);
6150 if (crtc_state
->sdvo_tv_clock
)
6151 dpll
|= PLL_REF_INPUT_TVCLKINBC
;
6152 else if (intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_LVDS
) &&
6153 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
6154 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
6156 dpll
|= PLL_REF_INPUT_DREFCLK
;
6158 dpll
|= DPLL_VCO_ENABLE
;
6159 crtc_state
->dpll_hw_state
.dpll
= dpll
;
6161 if (INTEL_INFO(dev
)->gen
>= 4) {
6162 u32 dpll_md
= (crtc_state
->pixel_multiplier
- 1)
6163 << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
6164 crtc_state
->dpll_hw_state
.dpll_md
= dpll_md
;
6168 static void i8xx_update_pll(struct intel_crtc
*crtc
,
6169 struct intel_crtc_state
*crtc_state
,
6170 intel_clock_t
*reduced_clock
,
6173 struct drm_device
*dev
= crtc
->base
.dev
;
6174 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6176 struct dpll
*clock
= &crtc_state
->dpll
;
6178 i9xx_update_pll_dividers(crtc
, crtc_state
, reduced_clock
);
6180 dpll
= DPLL_VGA_MODE_DIS
;
6182 if (intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_LVDS
)) {
6183 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
6186 dpll
|= PLL_P1_DIVIDE_BY_TWO
;
6188 dpll
|= (clock
->p1
- 2) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
6190 dpll
|= PLL_P2_DIVIDE_BY_4
;
6193 if (!IS_I830(dev
) && intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_DVO
))
6194 dpll
|= DPLL_DVO_2X_MODE
;
6196 if (intel_pipe_will_have_type(crtc
, INTEL_OUTPUT_LVDS
) &&
6197 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
6198 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
6200 dpll
|= PLL_REF_INPUT_DREFCLK
;
6202 dpll
|= DPLL_VCO_ENABLE
;
6203 crtc_state
->dpll_hw_state
.dpll
= dpll
;
6206 static void intel_set_pipe_timings(struct intel_crtc
*intel_crtc
)
6208 struct drm_device
*dev
= intel_crtc
->base
.dev
;
6209 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6210 enum pipe pipe
= intel_crtc
->pipe
;
6211 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
6212 struct drm_display_mode
*adjusted_mode
=
6213 &intel_crtc
->config
->base
.adjusted_mode
;
6214 uint32_t crtc_vtotal
, crtc_vblank_end
;
6217 /* We need to be careful not to changed the adjusted mode, for otherwise
6218 * the hw state checker will get angry at the mismatch. */
6219 crtc_vtotal
= adjusted_mode
->crtc_vtotal
;
6220 crtc_vblank_end
= adjusted_mode
->crtc_vblank_end
;
6222 if (adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
) {
6223 /* the chip adds 2 halflines automatically */
6225 crtc_vblank_end
-= 1;
6227 if (intel_pipe_has_type(intel_crtc
, INTEL_OUTPUT_SDVO
))
6228 vsyncshift
= (adjusted_mode
->crtc_htotal
- 1) / 2;
6230 vsyncshift
= adjusted_mode
->crtc_hsync_start
-
6231 adjusted_mode
->crtc_htotal
/ 2;
6233 vsyncshift
+= adjusted_mode
->crtc_htotal
;
6236 if (INTEL_INFO(dev
)->gen
> 3)
6237 I915_WRITE(VSYNCSHIFT(cpu_transcoder
), vsyncshift
);
6239 I915_WRITE(HTOTAL(cpu_transcoder
),
6240 (adjusted_mode
->crtc_hdisplay
- 1) |
6241 ((adjusted_mode
->crtc_htotal
- 1) << 16));
6242 I915_WRITE(HBLANK(cpu_transcoder
),
6243 (adjusted_mode
->crtc_hblank_start
- 1) |
6244 ((adjusted_mode
->crtc_hblank_end
- 1) << 16));
6245 I915_WRITE(HSYNC(cpu_transcoder
),
6246 (adjusted_mode
->crtc_hsync_start
- 1) |
6247 ((adjusted_mode
->crtc_hsync_end
- 1) << 16));
6249 I915_WRITE(VTOTAL(cpu_transcoder
),
6250 (adjusted_mode
->crtc_vdisplay
- 1) |
6251 ((crtc_vtotal
- 1) << 16));
6252 I915_WRITE(VBLANK(cpu_transcoder
),
6253 (adjusted_mode
->crtc_vblank_start
- 1) |
6254 ((crtc_vblank_end
- 1) << 16));
6255 I915_WRITE(VSYNC(cpu_transcoder
),
6256 (adjusted_mode
->crtc_vsync_start
- 1) |
6257 ((adjusted_mode
->crtc_vsync_end
- 1) << 16));
6259 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
6260 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
6261 * documented on the DDI_FUNC_CTL register description, EDP Input Select
6263 if (IS_HASWELL(dev
) && cpu_transcoder
== TRANSCODER_EDP
&&
6264 (pipe
== PIPE_B
|| pipe
== PIPE_C
))
6265 I915_WRITE(VTOTAL(pipe
), I915_READ(VTOTAL(cpu_transcoder
)));
6267 /* pipesrc controls the size that is scaled from, which should
6268 * always be the user's requested size.
6270 I915_WRITE(PIPESRC(pipe
),
6271 ((intel_crtc
->config
->pipe_src_w
- 1) << 16) |
6272 (intel_crtc
->config
->pipe_src_h
- 1));
6275 static void intel_get_pipe_timings(struct intel_crtc
*crtc
,
6276 struct intel_crtc_state
*pipe_config
)
6278 struct drm_device
*dev
= crtc
->base
.dev
;
6279 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6280 enum transcoder cpu_transcoder
= pipe_config
->cpu_transcoder
;
6283 tmp
= I915_READ(HTOTAL(cpu_transcoder
));
6284 pipe_config
->base
.adjusted_mode
.crtc_hdisplay
= (tmp
& 0xffff) + 1;
6285 pipe_config
->base
.adjusted_mode
.crtc_htotal
= ((tmp
>> 16) & 0xffff) + 1;
6286 tmp
= I915_READ(HBLANK(cpu_transcoder
));
6287 pipe_config
->base
.adjusted_mode
.crtc_hblank_start
= (tmp
& 0xffff) + 1;
6288 pipe_config
->base
.adjusted_mode
.crtc_hblank_end
= ((tmp
>> 16) & 0xffff) + 1;
6289 tmp
= I915_READ(HSYNC(cpu_transcoder
));
6290 pipe_config
->base
.adjusted_mode
.crtc_hsync_start
= (tmp
& 0xffff) + 1;
6291 pipe_config
->base
.adjusted_mode
.crtc_hsync_end
= ((tmp
>> 16) & 0xffff) + 1;
6293 tmp
= I915_READ(VTOTAL(cpu_transcoder
));
6294 pipe_config
->base
.adjusted_mode
.crtc_vdisplay
= (tmp
& 0xffff) + 1;
6295 pipe_config
->base
.adjusted_mode
.crtc_vtotal
= ((tmp
>> 16) & 0xffff) + 1;
6296 tmp
= I915_READ(VBLANK(cpu_transcoder
));
6297 pipe_config
->base
.adjusted_mode
.crtc_vblank_start
= (tmp
& 0xffff) + 1;
6298 pipe_config
->base
.adjusted_mode
.crtc_vblank_end
= ((tmp
>> 16) & 0xffff) + 1;
6299 tmp
= I915_READ(VSYNC(cpu_transcoder
));
6300 pipe_config
->base
.adjusted_mode
.crtc_vsync_start
= (tmp
& 0xffff) + 1;
6301 pipe_config
->base
.adjusted_mode
.crtc_vsync_end
= ((tmp
>> 16) & 0xffff) + 1;
6303 if (I915_READ(PIPECONF(cpu_transcoder
)) & PIPECONF_INTERLACE_MASK
) {
6304 pipe_config
->base
.adjusted_mode
.flags
|= DRM_MODE_FLAG_INTERLACE
;
6305 pipe_config
->base
.adjusted_mode
.crtc_vtotal
+= 1;
6306 pipe_config
->base
.adjusted_mode
.crtc_vblank_end
+= 1;
6309 tmp
= I915_READ(PIPESRC(crtc
->pipe
));
6310 pipe_config
->pipe_src_h
= (tmp
& 0xffff) + 1;
6311 pipe_config
->pipe_src_w
= ((tmp
>> 16) & 0xffff) + 1;
6313 pipe_config
->base
.mode
.vdisplay
= pipe_config
->pipe_src_h
;
6314 pipe_config
->base
.mode
.hdisplay
= pipe_config
->pipe_src_w
;
6317 void intel_mode_from_pipe_config(struct drm_display_mode
*mode
,
6318 struct intel_crtc_state
*pipe_config
)
6320 mode
->hdisplay
= pipe_config
->base
.adjusted_mode
.crtc_hdisplay
;
6321 mode
->htotal
= pipe_config
->base
.adjusted_mode
.crtc_htotal
;
6322 mode
->hsync_start
= pipe_config
->base
.adjusted_mode
.crtc_hsync_start
;
6323 mode
->hsync_end
= pipe_config
->base
.adjusted_mode
.crtc_hsync_end
;
6325 mode
->vdisplay
= pipe_config
->base
.adjusted_mode
.crtc_vdisplay
;
6326 mode
->vtotal
= pipe_config
->base
.adjusted_mode
.crtc_vtotal
;
6327 mode
->vsync_start
= pipe_config
->base
.adjusted_mode
.crtc_vsync_start
;
6328 mode
->vsync_end
= pipe_config
->base
.adjusted_mode
.crtc_vsync_end
;
6330 mode
->flags
= pipe_config
->base
.adjusted_mode
.flags
;
6332 mode
->clock
= pipe_config
->base
.adjusted_mode
.crtc_clock
;
6333 mode
->flags
|= pipe_config
->base
.adjusted_mode
.flags
;
6336 static void i9xx_set_pipeconf(struct intel_crtc
*intel_crtc
)
6338 struct drm_device
*dev
= intel_crtc
->base
.dev
;
6339 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6344 if ((intel_crtc
->pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
6345 (intel_crtc
->pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
6346 pipeconf
|= I915_READ(PIPECONF(intel_crtc
->pipe
)) & PIPECONF_ENABLE
;
6348 if (intel_crtc
->config
->double_wide
)
6349 pipeconf
|= PIPECONF_DOUBLE_WIDE
;
6351 /* only g4x and later have fancy bpc/dither controls */
6352 if (IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) {
6353 /* Bspec claims that we can't use dithering for 30bpp pipes. */
6354 if (intel_crtc
->config
->dither
&& intel_crtc
->config
->pipe_bpp
!= 30)
6355 pipeconf
|= PIPECONF_DITHER_EN
|
6356 PIPECONF_DITHER_TYPE_SP
;
6358 switch (intel_crtc
->config
->pipe_bpp
) {
6360 pipeconf
|= PIPECONF_6BPC
;
6363 pipeconf
|= PIPECONF_8BPC
;
6366 pipeconf
|= PIPECONF_10BPC
;
6369 /* Case prevented by intel_choose_pipe_bpp_dither. */
6374 if (HAS_PIPE_CXSR(dev
)) {
6375 if (intel_crtc
->lowfreq_avail
) {
6376 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
6377 pipeconf
|= PIPECONF_CXSR_DOWNCLOCK
;
6379 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
6383 if (intel_crtc
->config
->base
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
) {
6384 if (INTEL_INFO(dev
)->gen
< 4 ||
6385 intel_pipe_has_type(intel_crtc
, INTEL_OUTPUT_SDVO
))
6386 pipeconf
|= PIPECONF_INTERLACE_W_FIELD_INDICATION
;
6388 pipeconf
|= PIPECONF_INTERLACE_W_SYNC_SHIFT
;
6390 pipeconf
|= PIPECONF_PROGRESSIVE
;
6392 if (IS_VALLEYVIEW(dev
) && intel_crtc
->config
->limited_color_range
)
6393 pipeconf
|= PIPECONF_COLOR_RANGE_SELECT
;
6395 I915_WRITE(PIPECONF(intel_crtc
->pipe
), pipeconf
);
6396 POSTING_READ(PIPECONF(intel_crtc
->pipe
));
6399 static int i9xx_crtc_compute_clock(struct intel_crtc
*crtc
,
6400 struct intel_crtc_state
*crtc_state
)
6402 struct drm_device
*dev
= crtc
->base
.dev
;
6403 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6404 int refclk
, num_connectors
= 0;
6405 intel_clock_t clock
, reduced_clock
;
6406 bool ok
, has_reduced_clock
= false;
6407 bool is_lvds
= false, is_dsi
= false;
6408 struct intel_encoder
*encoder
;
6409 const intel_limit_t
*limit
;
6411 for_each_intel_encoder(dev
, encoder
) {
6412 if (encoder
->new_crtc
!= crtc
)
6415 switch (encoder
->type
) {
6416 case INTEL_OUTPUT_LVDS
:
6419 case INTEL_OUTPUT_DSI
:
6432 if (!crtc_state
->clock_set
) {
6433 refclk
= i9xx_get_refclk(crtc
, num_connectors
);
6436 * Returns a set of divisors for the desired target clock with
6437 * the given refclk, or FALSE. The returned values represent
6438 * the clock equation: reflck * (5 * (m1 + 2) + (m2 + 2)) / (n +
6441 limit
= intel_limit(crtc
, refclk
);
6442 ok
= dev_priv
->display
.find_dpll(limit
, crtc
,
6443 crtc_state
->port_clock
,
6444 refclk
, NULL
, &clock
);
6446 DRM_ERROR("Couldn't find PLL settings for mode!\n");
6450 if (is_lvds
&& dev_priv
->lvds_downclock_avail
) {
6452 * Ensure we match the reduced clock's P to the target
6453 * clock. If the clocks don't match, we can't switch
6454 * the display clock by using the FP0/FP1. In such case
6455 * we will disable the LVDS downclock feature.
6458 dev_priv
->display
.find_dpll(limit
, crtc
,
6459 dev_priv
->lvds_downclock
,
6463 /* Compat-code for transition, will disappear. */
6464 crtc_state
->dpll
.n
= clock
.n
;
6465 crtc_state
->dpll
.m1
= clock
.m1
;
6466 crtc_state
->dpll
.m2
= clock
.m2
;
6467 crtc_state
->dpll
.p1
= clock
.p1
;
6468 crtc_state
->dpll
.p2
= clock
.p2
;
6472 i8xx_update_pll(crtc
, crtc_state
,
6473 has_reduced_clock
? &reduced_clock
: NULL
,
6475 } else if (IS_CHERRYVIEW(dev
)) {
6476 chv_update_pll(crtc
, crtc_state
);
6477 } else if (IS_VALLEYVIEW(dev
)) {
6478 vlv_update_pll(crtc
, crtc_state
);
6480 i9xx_update_pll(crtc
, crtc_state
,
6481 has_reduced_clock
? &reduced_clock
: NULL
,
6488 static void i9xx_get_pfit_config(struct intel_crtc
*crtc
,
6489 struct intel_crtc_state
*pipe_config
)
6491 struct drm_device
*dev
= crtc
->base
.dev
;
6492 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6495 if (INTEL_INFO(dev
)->gen
<= 3 && (IS_I830(dev
) || !IS_MOBILE(dev
)))
6498 tmp
= I915_READ(PFIT_CONTROL
);
6499 if (!(tmp
& PFIT_ENABLE
))
6502 /* Check whether the pfit is attached to our pipe. */
6503 if (INTEL_INFO(dev
)->gen
< 4) {
6504 if (crtc
->pipe
!= PIPE_B
)
6507 if ((tmp
& PFIT_PIPE_MASK
) != (crtc
->pipe
<< PFIT_PIPE_SHIFT
))
6511 pipe_config
->gmch_pfit
.control
= tmp
;
6512 pipe_config
->gmch_pfit
.pgm_ratios
= I915_READ(PFIT_PGM_RATIOS
);
6513 if (INTEL_INFO(dev
)->gen
< 5)
6514 pipe_config
->gmch_pfit
.lvds_border_bits
=
6515 I915_READ(LVDS
) & LVDS_BORDER_ENABLE
;
6518 static void vlv_crtc_clock_get(struct intel_crtc
*crtc
,
6519 struct intel_crtc_state
*pipe_config
)
6521 struct drm_device
*dev
= crtc
->base
.dev
;
6522 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6523 int pipe
= pipe_config
->cpu_transcoder
;
6524 intel_clock_t clock
;
6526 int refclk
= 100000;
6528 /* In case of MIPI DPLL will not even be used */
6529 if (!(pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
))
6532 mutex_lock(&dev_priv
->dpio_lock
);
6533 mdiv
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW3(pipe
));
6534 mutex_unlock(&dev_priv
->dpio_lock
);
6536 clock
.m1
= (mdiv
>> DPIO_M1DIV_SHIFT
) & 7;
6537 clock
.m2
= mdiv
& DPIO_M2DIV_MASK
;
6538 clock
.n
= (mdiv
>> DPIO_N_SHIFT
) & 0xf;
6539 clock
.p1
= (mdiv
>> DPIO_P1_SHIFT
) & 7;
6540 clock
.p2
= (mdiv
>> DPIO_P2_SHIFT
) & 0x1f;
6542 vlv_clock(refclk
, &clock
);
6544 /* clock.dot is the fast clock */
6545 pipe_config
->port_clock
= clock
.dot
/ 5;
6548 static void i9xx_get_plane_config(struct intel_crtc
*crtc
,
6549 struct intel_plane_config
*plane_config
)
6551 struct drm_device
*dev
= crtc
->base
.dev
;
6552 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6553 u32 val
, base
, offset
;
6554 int pipe
= crtc
->pipe
, plane
= crtc
->plane
;
6555 int fourcc
, pixel_format
;
6558 crtc
->base
.primary
->fb
= kzalloc(sizeof(struct intel_framebuffer
), GFP_KERNEL
);
6559 if (!crtc
->base
.primary
->fb
) {
6560 DRM_DEBUG_KMS("failed to alloc fb\n");
6564 val
= I915_READ(DSPCNTR(plane
));
6566 if (INTEL_INFO(dev
)->gen
>= 4)
6567 if (val
& DISPPLANE_TILED
)
6568 plane_config
->tiled
= true;
6570 pixel_format
= val
& DISPPLANE_PIXFORMAT_MASK
;
6571 fourcc
= intel_format_to_fourcc(pixel_format
);
6572 crtc
->base
.primary
->fb
->pixel_format
= fourcc
;
6573 crtc
->base
.primary
->fb
->bits_per_pixel
=
6574 drm_format_plane_cpp(fourcc
, 0) * 8;
6576 if (INTEL_INFO(dev
)->gen
>= 4) {
6577 if (plane_config
->tiled
)
6578 offset
= I915_READ(DSPTILEOFF(plane
));
6580 offset
= I915_READ(DSPLINOFF(plane
));
6581 base
= I915_READ(DSPSURF(plane
)) & 0xfffff000;
6583 base
= I915_READ(DSPADDR(plane
));
6585 plane_config
->base
= base
;
6587 val
= I915_READ(PIPESRC(pipe
));
6588 crtc
->base
.primary
->fb
->width
= ((val
>> 16) & 0xfff) + 1;
6589 crtc
->base
.primary
->fb
->height
= ((val
>> 0) & 0xfff) + 1;
6591 val
= I915_READ(DSPSTRIDE(pipe
));
6592 crtc
->base
.primary
->fb
->pitches
[0] = val
& 0xffffffc0;
6594 aligned_height
= intel_align_height(dev
, crtc
->base
.primary
->fb
->height
,
6595 plane_config
->tiled
);
6597 plane_config
->size
= PAGE_ALIGN(crtc
->base
.primary
->fb
->pitches
[0] *
6600 DRM_DEBUG_KMS("pipe/plane %d/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
6601 pipe
, plane
, crtc
->base
.primary
->fb
->width
,
6602 crtc
->base
.primary
->fb
->height
,
6603 crtc
->base
.primary
->fb
->bits_per_pixel
, base
,
6604 crtc
->base
.primary
->fb
->pitches
[0],
6605 plane_config
->size
);
6609 static void chv_crtc_clock_get(struct intel_crtc
*crtc
,
6610 struct intel_crtc_state
*pipe_config
)
6612 struct drm_device
*dev
= crtc
->base
.dev
;
6613 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6614 int pipe
= pipe_config
->cpu_transcoder
;
6615 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
6616 intel_clock_t clock
;
6617 u32 cmn_dw13
, pll_dw0
, pll_dw1
, pll_dw2
;
6618 int refclk
= 100000;
6620 mutex_lock(&dev_priv
->dpio_lock
);
6621 cmn_dw13
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW13(port
));
6622 pll_dw0
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW0(port
));
6623 pll_dw1
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW1(port
));
6624 pll_dw2
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW2(port
));
6625 mutex_unlock(&dev_priv
->dpio_lock
);
6627 clock
.m1
= (pll_dw1
& 0x7) == DPIO_CHV_M1_DIV_BY_2
? 2 : 0;
6628 clock
.m2
= ((pll_dw0
& 0xff) << 22) | (pll_dw2
& 0x3fffff);
6629 clock
.n
= (pll_dw1
>> DPIO_CHV_N_DIV_SHIFT
) & 0xf;
6630 clock
.p1
= (cmn_dw13
>> DPIO_CHV_P1_DIV_SHIFT
) & 0x7;
6631 clock
.p2
= (cmn_dw13
>> DPIO_CHV_P2_DIV_SHIFT
) & 0x1f;
6633 chv_clock(refclk
, &clock
);
6635 /* clock.dot is the fast clock */
6636 pipe_config
->port_clock
= clock
.dot
/ 5;
6639 static bool i9xx_get_pipe_config(struct intel_crtc
*crtc
,
6640 struct intel_crtc_state
*pipe_config
)
6642 struct drm_device
*dev
= crtc
->base
.dev
;
6643 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6646 if (!intel_display_power_is_enabled(dev_priv
,
6647 POWER_DOMAIN_PIPE(crtc
->pipe
)))
6650 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
6651 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
6653 tmp
= I915_READ(PIPECONF(crtc
->pipe
));
6654 if (!(tmp
& PIPECONF_ENABLE
))
6657 if (IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) {
6658 switch (tmp
& PIPECONF_BPC_MASK
) {
6660 pipe_config
->pipe_bpp
= 18;
6663 pipe_config
->pipe_bpp
= 24;
6665 case PIPECONF_10BPC
:
6666 pipe_config
->pipe_bpp
= 30;
6673 if (IS_VALLEYVIEW(dev
) && (tmp
& PIPECONF_COLOR_RANGE_SELECT
))
6674 pipe_config
->limited_color_range
= true;
6676 if (INTEL_INFO(dev
)->gen
< 4)
6677 pipe_config
->double_wide
= tmp
& PIPECONF_DOUBLE_WIDE
;
6679 intel_get_pipe_timings(crtc
, pipe_config
);
6681 i9xx_get_pfit_config(crtc
, pipe_config
);
6683 if (INTEL_INFO(dev
)->gen
>= 4) {
6684 tmp
= I915_READ(DPLL_MD(crtc
->pipe
));
6685 pipe_config
->pixel_multiplier
=
6686 ((tmp
& DPLL_MD_UDI_MULTIPLIER_MASK
)
6687 >> DPLL_MD_UDI_MULTIPLIER_SHIFT
) + 1;
6688 pipe_config
->dpll_hw_state
.dpll_md
= tmp
;
6689 } else if (IS_I945G(dev
) || IS_I945GM(dev
) || IS_G33(dev
)) {
6690 tmp
= I915_READ(DPLL(crtc
->pipe
));
6691 pipe_config
->pixel_multiplier
=
6692 ((tmp
& SDVO_MULTIPLIER_MASK
)
6693 >> SDVO_MULTIPLIER_SHIFT_HIRES
) + 1;
6695 /* Note that on i915G/GM the pixel multiplier is in the sdvo
6696 * port and will be fixed up in the encoder->get_config
6698 pipe_config
->pixel_multiplier
= 1;
6700 pipe_config
->dpll_hw_state
.dpll
= I915_READ(DPLL(crtc
->pipe
));
6701 if (!IS_VALLEYVIEW(dev
)) {
6703 * DPLL_DVO_2X_MODE must be enabled for both DPLLs
6704 * on 830. Filter it out here so that we don't
6705 * report errors due to that.
6708 pipe_config
->dpll_hw_state
.dpll
&= ~DPLL_DVO_2X_MODE
;
6710 pipe_config
->dpll_hw_state
.fp0
= I915_READ(FP0(crtc
->pipe
));
6711 pipe_config
->dpll_hw_state
.fp1
= I915_READ(FP1(crtc
->pipe
));
6713 /* Mask out read-only status bits. */
6714 pipe_config
->dpll_hw_state
.dpll
&= ~(DPLL_LOCK_VLV
|
6715 DPLL_PORTC_READY_MASK
|
6716 DPLL_PORTB_READY_MASK
);
6719 if (IS_CHERRYVIEW(dev
))
6720 chv_crtc_clock_get(crtc
, pipe_config
);
6721 else if (IS_VALLEYVIEW(dev
))
6722 vlv_crtc_clock_get(crtc
, pipe_config
);
6724 i9xx_crtc_clock_get(crtc
, pipe_config
);
6729 static void ironlake_init_pch_refclk(struct drm_device
*dev
)
6731 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6732 struct intel_encoder
*encoder
;
6734 bool has_lvds
= false;
6735 bool has_cpu_edp
= false;
6736 bool has_panel
= false;
6737 bool has_ck505
= false;
6738 bool can_ssc
= false;
6740 /* We need to take the global config into account */
6741 for_each_intel_encoder(dev
, encoder
) {
6742 switch (encoder
->type
) {
6743 case INTEL_OUTPUT_LVDS
:
6747 case INTEL_OUTPUT_EDP
:
6749 if (enc_to_dig_port(&encoder
->base
)->port
== PORT_A
)
6757 if (HAS_PCH_IBX(dev
)) {
6758 has_ck505
= dev_priv
->vbt
.display_clock_mode
;
6759 can_ssc
= has_ck505
;
6765 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n",
6766 has_panel
, has_lvds
, has_ck505
);
6768 /* Ironlake: try to setup display ref clock before DPLL
6769 * enabling. This is only under driver's control after
6770 * PCH B stepping, previous chipset stepping should be
6771 * ignoring this setting.
6773 val
= I915_READ(PCH_DREF_CONTROL
);
6775 /* As we must carefully and slowly disable/enable each source in turn,
6776 * compute the final state we want first and check if we need to
6777 * make any changes at all.
6780 final
&= ~DREF_NONSPREAD_SOURCE_MASK
;
6782 final
|= DREF_NONSPREAD_CK505_ENABLE
;
6784 final
|= DREF_NONSPREAD_SOURCE_ENABLE
;
6786 final
&= ~DREF_SSC_SOURCE_MASK
;
6787 final
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
6788 final
&= ~DREF_SSC1_ENABLE
;
6791 final
|= DREF_SSC_SOURCE_ENABLE
;
6793 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
6794 final
|= DREF_SSC1_ENABLE
;
6797 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
6798 final
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
6800 final
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
6802 final
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
6804 final
|= DREF_SSC_SOURCE_DISABLE
;
6805 final
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
6811 /* Always enable nonspread source */
6812 val
&= ~DREF_NONSPREAD_SOURCE_MASK
;
6815 val
|= DREF_NONSPREAD_CK505_ENABLE
;
6817 val
|= DREF_NONSPREAD_SOURCE_ENABLE
;
6820 val
&= ~DREF_SSC_SOURCE_MASK
;
6821 val
|= DREF_SSC_SOURCE_ENABLE
;
6823 /* SSC must be turned on before enabling the CPU output */
6824 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
6825 DRM_DEBUG_KMS("Using SSC on panel\n");
6826 val
|= DREF_SSC1_ENABLE
;
6828 val
&= ~DREF_SSC1_ENABLE
;
6830 /* Get SSC going before enabling the outputs */
6831 I915_WRITE(PCH_DREF_CONTROL
, val
);
6832 POSTING_READ(PCH_DREF_CONTROL
);
6835 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
6837 /* Enable CPU source on CPU attached eDP */
6839 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
6840 DRM_DEBUG_KMS("Using SSC on eDP\n");
6841 val
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
6843 val
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
6845 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
6847 I915_WRITE(PCH_DREF_CONTROL
, val
);
6848 POSTING_READ(PCH_DREF_CONTROL
);
6851 DRM_DEBUG_KMS("Disabling SSC entirely\n");
6853 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
6855 /* Turn off CPU output */
6856 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
6858 I915_WRITE(PCH_DREF_CONTROL
, val
);
6859 POSTING_READ(PCH_DREF_CONTROL
);
6862 /* Turn off the SSC source */
6863 val
&= ~DREF_SSC_SOURCE_MASK
;
6864 val
|= DREF_SSC_SOURCE_DISABLE
;
6867 val
&= ~DREF_SSC1_ENABLE
;
6869 I915_WRITE(PCH_DREF_CONTROL
, val
);
6870 POSTING_READ(PCH_DREF_CONTROL
);
6874 BUG_ON(val
!= final
);
6877 static void lpt_reset_fdi_mphy(struct drm_i915_private
*dev_priv
)
6881 tmp
= I915_READ(SOUTH_CHICKEN2
);
6882 tmp
|= FDI_MPHY_IOSFSB_RESET_CTL
;
6883 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
6885 if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2
) &
6886 FDI_MPHY_IOSFSB_RESET_STATUS
, 100))
6887 DRM_ERROR("FDI mPHY reset assert timeout\n");
6889 tmp
= I915_READ(SOUTH_CHICKEN2
);
6890 tmp
&= ~FDI_MPHY_IOSFSB_RESET_CTL
;
6891 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
6893 if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2
) &
6894 FDI_MPHY_IOSFSB_RESET_STATUS
) == 0, 100))
6895 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
6898 /* WaMPhyProgramming:hsw */
6899 static void lpt_program_fdi_mphy(struct drm_i915_private
*dev_priv
)
6903 tmp
= intel_sbi_read(dev_priv
, 0x8008, SBI_MPHY
);
6904 tmp
&= ~(0xFF << 24);
6905 tmp
|= (0x12 << 24);
6906 intel_sbi_write(dev_priv
, 0x8008, tmp
, SBI_MPHY
);
6908 tmp
= intel_sbi_read(dev_priv
, 0x2008, SBI_MPHY
);
6910 intel_sbi_write(dev_priv
, 0x2008, tmp
, SBI_MPHY
);
6912 tmp
= intel_sbi_read(dev_priv
, 0x2108, SBI_MPHY
);
6914 intel_sbi_write(dev_priv
, 0x2108, tmp
, SBI_MPHY
);
6916 tmp
= intel_sbi_read(dev_priv
, 0x206C, SBI_MPHY
);
6917 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
6918 intel_sbi_write(dev_priv
, 0x206C, tmp
, SBI_MPHY
);
6920 tmp
= intel_sbi_read(dev_priv
, 0x216C, SBI_MPHY
);
6921 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
6922 intel_sbi_write(dev_priv
, 0x216C, tmp
, SBI_MPHY
);
6924 tmp
= intel_sbi_read(dev_priv
, 0x2080, SBI_MPHY
);
6927 intel_sbi_write(dev_priv
, 0x2080, tmp
, SBI_MPHY
);
6929 tmp
= intel_sbi_read(dev_priv
, 0x2180, SBI_MPHY
);
6932 intel_sbi_write(dev_priv
, 0x2180, tmp
, SBI_MPHY
);
6934 tmp
= intel_sbi_read(dev_priv
, 0x208C, SBI_MPHY
);
6937 intel_sbi_write(dev_priv
, 0x208C, tmp
, SBI_MPHY
);
6939 tmp
= intel_sbi_read(dev_priv
, 0x218C, SBI_MPHY
);
6942 intel_sbi_write(dev_priv
, 0x218C, tmp
, SBI_MPHY
);
6944 tmp
= intel_sbi_read(dev_priv
, 0x2098, SBI_MPHY
);
6945 tmp
&= ~(0xFF << 16);
6946 tmp
|= (0x1C << 16);
6947 intel_sbi_write(dev_priv
, 0x2098, tmp
, SBI_MPHY
);
6949 tmp
= intel_sbi_read(dev_priv
, 0x2198, SBI_MPHY
);
6950 tmp
&= ~(0xFF << 16);
6951 tmp
|= (0x1C << 16);
6952 intel_sbi_write(dev_priv
, 0x2198, tmp
, SBI_MPHY
);
6954 tmp
= intel_sbi_read(dev_priv
, 0x20C4, SBI_MPHY
);
6956 intel_sbi_write(dev_priv
, 0x20C4, tmp
, SBI_MPHY
);
6958 tmp
= intel_sbi_read(dev_priv
, 0x21C4, SBI_MPHY
);
6960 intel_sbi_write(dev_priv
, 0x21C4, tmp
, SBI_MPHY
);
6962 tmp
= intel_sbi_read(dev_priv
, 0x20EC, SBI_MPHY
);
6963 tmp
&= ~(0xF << 28);
6965 intel_sbi_write(dev_priv
, 0x20EC, tmp
, SBI_MPHY
);
6967 tmp
= intel_sbi_read(dev_priv
, 0x21EC, SBI_MPHY
);
6968 tmp
&= ~(0xF << 28);
6970 intel_sbi_write(dev_priv
, 0x21EC, tmp
, SBI_MPHY
);
6973 /* Implements 3 different sequences from BSpec chapter "Display iCLK
6974 * Programming" based on the parameters passed:
6975 * - Sequence to enable CLKOUT_DP
6976 * - Sequence to enable CLKOUT_DP without spread
6977 * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O
6979 static void lpt_enable_clkout_dp(struct drm_device
*dev
, bool with_spread
,
6982 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6985 if (WARN(with_fdi
&& !with_spread
, "FDI requires downspread\n"))
6987 if (WARN(dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
&&
6988 with_fdi
, "LP PCH doesn't have FDI\n"))
6991 mutex_lock(&dev_priv
->dpio_lock
);
6993 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
6994 tmp
&= ~SBI_SSCCTL_DISABLE
;
6995 tmp
|= SBI_SSCCTL_PATHALT
;
6996 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
7001 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
7002 tmp
&= ~SBI_SSCCTL_PATHALT
;
7003 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
7006 lpt_reset_fdi_mphy(dev_priv
);
7007 lpt_program_fdi_mphy(dev_priv
);
7011 reg
= (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) ?
7012 SBI_GEN0
: SBI_DBUFF0
;
7013 tmp
= intel_sbi_read(dev_priv
, reg
, SBI_ICLK
);
7014 tmp
|= SBI_GEN0_CFG_BUFFENABLE_DISABLE
;
7015 intel_sbi_write(dev_priv
, reg
, tmp
, SBI_ICLK
);
7017 mutex_unlock(&dev_priv
->dpio_lock
);
7020 /* Sequence to disable CLKOUT_DP */
7021 static void lpt_disable_clkout_dp(struct drm_device
*dev
)
7023 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7026 mutex_lock(&dev_priv
->dpio_lock
);
7028 reg
= (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) ?
7029 SBI_GEN0
: SBI_DBUFF0
;
7030 tmp
= intel_sbi_read(dev_priv
, reg
, SBI_ICLK
);
7031 tmp
&= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE
;
7032 intel_sbi_write(dev_priv
, reg
, tmp
, SBI_ICLK
);
7034 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
7035 if (!(tmp
& SBI_SSCCTL_DISABLE
)) {
7036 if (!(tmp
& SBI_SSCCTL_PATHALT
)) {
7037 tmp
|= SBI_SSCCTL_PATHALT
;
7038 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
7041 tmp
|= SBI_SSCCTL_DISABLE
;
7042 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
7045 mutex_unlock(&dev_priv
->dpio_lock
);
7048 static void lpt_init_pch_refclk(struct drm_device
*dev
)
7050 struct intel_encoder
*encoder
;
7051 bool has_vga
= false;
7053 for_each_intel_encoder(dev
, encoder
) {
7054 switch (encoder
->type
) {
7055 case INTEL_OUTPUT_ANALOG
:
7064 lpt_enable_clkout_dp(dev
, true, true);
7066 lpt_disable_clkout_dp(dev
);
7070 * Initialize reference clocks when the driver loads
7072 void intel_init_pch_refclk(struct drm_device
*dev
)
7074 if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
7075 ironlake_init_pch_refclk(dev
);
7076 else if (HAS_PCH_LPT(dev
))
7077 lpt_init_pch_refclk(dev
);
7080 static int ironlake_get_refclk(struct drm_crtc
*crtc
)
7082 struct drm_device
*dev
= crtc
->dev
;
7083 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7084 struct intel_encoder
*encoder
;
7085 int num_connectors
= 0;
7086 bool is_lvds
= false;
7088 for_each_intel_encoder(dev
, encoder
) {
7089 if (encoder
->new_crtc
!= to_intel_crtc(crtc
))
7092 switch (encoder
->type
) {
7093 case INTEL_OUTPUT_LVDS
:
7102 if (is_lvds
&& intel_panel_use_ssc(dev_priv
) && num_connectors
< 2) {
7103 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n",
7104 dev_priv
->vbt
.lvds_ssc_freq
);
7105 return dev_priv
->vbt
.lvds_ssc_freq
;
7111 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
)
7113 struct drm_i915_private
*dev_priv
= crtc
->dev
->dev_private
;
7114 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7115 int pipe
= intel_crtc
->pipe
;
7120 switch (intel_crtc
->config
->pipe_bpp
) {
7122 val
|= PIPECONF_6BPC
;
7125 val
|= PIPECONF_8BPC
;
7128 val
|= PIPECONF_10BPC
;
7131 val
|= PIPECONF_12BPC
;
7134 /* Case prevented by intel_choose_pipe_bpp_dither. */
7138 if (intel_crtc
->config
->dither
)
7139 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
7141 if (intel_crtc
->config
->base
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
7142 val
|= PIPECONF_INTERLACED_ILK
;
7144 val
|= PIPECONF_PROGRESSIVE
;
7146 if (intel_crtc
->config
->limited_color_range
)
7147 val
|= PIPECONF_COLOR_RANGE_SELECT
;
7149 I915_WRITE(PIPECONF(pipe
), val
);
7150 POSTING_READ(PIPECONF(pipe
));
7154 * Set up the pipe CSC unit.
7156 * Currently only full range RGB to limited range RGB conversion
7157 * is supported, but eventually this should handle various
7158 * RGB<->YCbCr scenarios as well.
7160 static void intel_set_pipe_csc(struct drm_crtc
*crtc
)
7162 struct drm_device
*dev
= crtc
->dev
;
7163 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7164 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7165 int pipe
= intel_crtc
->pipe
;
7166 uint16_t coeff
= 0x7800; /* 1.0 */
7169 * TODO: Check what kind of values actually come out of the pipe
7170 * with these coeff/postoff values and adjust to get the best
7171 * accuracy. Perhaps we even need to take the bpc value into
7175 if (intel_crtc
->config
->limited_color_range
)
7176 coeff
= ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */
7179 * GY/GU and RY/RU should be the other way around according
7180 * to BSpec, but reality doesn't agree. Just set them up in
7181 * a way that results in the correct picture.
7183 I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe
), coeff
<< 16);
7184 I915_WRITE(PIPE_CSC_COEFF_BY(pipe
), 0);
7186 I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe
), coeff
);
7187 I915_WRITE(PIPE_CSC_COEFF_BU(pipe
), 0);
7189 I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe
), 0);
7190 I915_WRITE(PIPE_CSC_COEFF_BV(pipe
), coeff
<< 16);
7192 I915_WRITE(PIPE_CSC_PREOFF_HI(pipe
), 0);
7193 I915_WRITE(PIPE_CSC_PREOFF_ME(pipe
), 0);
7194 I915_WRITE(PIPE_CSC_PREOFF_LO(pipe
), 0);
7196 if (INTEL_INFO(dev
)->gen
> 6) {
7197 uint16_t postoff
= 0;
7199 if (intel_crtc
->config
->limited_color_range
)
7200 postoff
= (16 * (1 << 12) / 255) & 0x1fff;
7202 I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe
), postoff
);
7203 I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe
), postoff
);
7204 I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe
), postoff
);
7206 I915_WRITE(PIPE_CSC_MODE(pipe
), 0);
7208 uint32_t mode
= CSC_MODE_YUV_TO_RGB
;
7210 if (intel_crtc
->config
->limited_color_range
)
7211 mode
|= CSC_BLACK_SCREEN_OFFSET
;
7213 I915_WRITE(PIPE_CSC_MODE(pipe
), mode
);
7217 static void haswell_set_pipeconf(struct drm_crtc
*crtc
)
7219 struct drm_device
*dev
= crtc
->dev
;
7220 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7221 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7222 enum pipe pipe
= intel_crtc
->pipe
;
7223 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
7228 if (IS_HASWELL(dev
) && intel_crtc
->config
->dither
)
7229 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
7231 if (intel_crtc
->config
->base
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
7232 val
|= PIPECONF_INTERLACED_ILK
;
7234 val
|= PIPECONF_PROGRESSIVE
;
7236 I915_WRITE(PIPECONF(cpu_transcoder
), val
);
7237 POSTING_READ(PIPECONF(cpu_transcoder
));
7239 I915_WRITE(GAMMA_MODE(intel_crtc
->pipe
), GAMMA_MODE_MODE_8BIT
);
7240 POSTING_READ(GAMMA_MODE(intel_crtc
->pipe
));
7242 if (IS_BROADWELL(dev
) || INTEL_INFO(dev
)->gen
>= 9) {
7245 switch (intel_crtc
->config
->pipe_bpp
) {
7247 val
|= PIPEMISC_DITHER_6_BPC
;
7250 val
|= PIPEMISC_DITHER_8_BPC
;
7253 val
|= PIPEMISC_DITHER_10_BPC
;
7256 val
|= PIPEMISC_DITHER_12_BPC
;
7259 /* Case prevented by pipe_config_set_bpp. */
7263 if (intel_crtc
->config
->dither
)
7264 val
|= PIPEMISC_DITHER_ENABLE
| PIPEMISC_DITHER_TYPE_SP
;
7266 I915_WRITE(PIPEMISC(pipe
), val
);
7270 static bool ironlake_compute_clocks(struct drm_crtc
*crtc
,
7271 struct intel_crtc_state
*crtc_state
,
7272 intel_clock_t
*clock
,
7273 bool *has_reduced_clock
,
7274 intel_clock_t
*reduced_clock
)
7276 struct drm_device
*dev
= crtc
->dev
;
7277 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7278 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7280 const intel_limit_t
*limit
;
7281 bool ret
, is_lvds
= false;
7283 is_lvds
= intel_pipe_will_have_type(intel_crtc
, INTEL_OUTPUT_LVDS
);
7285 refclk
= ironlake_get_refclk(crtc
);
7288 * Returns a set of divisors for the desired target clock with the given
7289 * refclk, or FALSE. The returned values represent the clock equation:
7290 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
7292 limit
= intel_limit(intel_crtc
, refclk
);
7293 ret
= dev_priv
->display
.find_dpll(limit
, intel_crtc
,
7294 crtc_state
->port_clock
,
7295 refclk
, NULL
, clock
);
7299 if (is_lvds
&& dev_priv
->lvds_downclock_avail
) {
7301 * Ensure we match the reduced clock's P to the target clock.
7302 * If the clocks don't match, we can't switch the display clock
7303 * by using the FP0/FP1. In such case we will disable the LVDS
7304 * downclock feature.
7306 *has_reduced_clock
=
7307 dev_priv
->display
.find_dpll(limit
, intel_crtc
,
7308 dev_priv
->lvds_downclock
,
7316 int ironlake_get_lanes_required(int target_clock
, int link_bw
, int bpp
)
7319 * Account for spread spectrum to avoid
7320 * oversubscribing the link. Max center spread
7321 * is 2.5%; use 5% for safety's sake.
7323 u32 bps
= target_clock
* bpp
* 21 / 20;
7324 return DIV_ROUND_UP(bps
, link_bw
* 8);
7327 static bool ironlake_needs_fb_cb_tune(struct dpll
*dpll
, int factor
)
7329 return i9xx_dpll_compute_m(dpll
) < factor
* dpll
->n
;
7332 static uint32_t ironlake_compute_dpll(struct intel_crtc
*intel_crtc
,
7333 struct intel_crtc_state
*crtc_state
,
7335 intel_clock_t
*reduced_clock
, u32
*fp2
)
7337 struct drm_crtc
*crtc
= &intel_crtc
->base
;
7338 struct drm_device
*dev
= crtc
->dev
;
7339 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7340 struct intel_encoder
*intel_encoder
;
7342 int factor
, num_connectors
= 0;
7343 bool is_lvds
= false, is_sdvo
= false;
7345 for_each_intel_encoder(dev
, intel_encoder
) {
7346 if (intel_encoder
->new_crtc
!= to_intel_crtc(crtc
))
7349 switch (intel_encoder
->type
) {
7350 case INTEL_OUTPUT_LVDS
:
7353 case INTEL_OUTPUT_SDVO
:
7354 case INTEL_OUTPUT_HDMI
:
7364 /* Enable autotuning of the PLL clock (if permissible) */
7367 if ((intel_panel_use_ssc(dev_priv
) &&
7368 dev_priv
->vbt
.lvds_ssc_freq
== 100000) ||
7369 (HAS_PCH_IBX(dev
) && intel_is_dual_link_lvds(dev
)))
7371 } else if (crtc_state
->sdvo_tv_clock
)
7374 if (ironlake_needs_fb_cb_tune(&crtc_state
->dpll
, factor
))
7377 if (fp2
&& (reduced_clock
->m
< factor
* reduced_clock
->n
))
7383 dpll
|= DPLLB_MODE_LVDS
;
7385 dpll
|= DPLLB_MODE_DAC_SERIAL
;
7387 dpll
|= (crtc_state
->pixel_multiplier
- 1)
7388 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
;
7391 dpll
|= DPLL_SDVO_HIGH_SPEED
;
7392 if (crtc_state
->has_dp_encoder
)
7393 dpll
|= DPLL_SDVO_HIGH_SPEED
;
7395 /* compute bitmask from p1 value */
7396 dpll
|= (1 << (crtc_state
->dpll
.p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
7398 dpll
|= (1 << (crtc_state
->dpll
.p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
7400 switch (crtc_state
->dpll
.p2
) {
7402 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
7405 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
7408 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
7411 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
7415 if (is_lvds
&& intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
7416 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
7418 dpll
|= PLL_REF_INPUT_DREFCLK
;
7420 return dpll
| DPLL_VCO_ENABLE
;
7423 static int ironlake_crtc_compute_clock(struct intel_crtc
*crtc
,
7424 struct intel_crtc_state
*crtc_state
)
7426 struct drm_device
*dev
= crtc
->base
.dev
;
7427 intel_clock_t clock
, reduced_clock
;
7428 u32 dpll
= 0, fp
= 0, fp2
= 0;
7429 bool ok
, has_reduced_clock
= false;
7430 bool is_lvds
= false;
7431 struct intel_shared_dpll
*pll
;
7433 is_lvds
= intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
);
7435 WARN(!(HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
)),
7436 "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev
));
7438 ok
= ironlake_compute_clocks(&crtc
->base
, crtc_state
, &clock
,
7439 &has_reduced_clock
, &reduced_clock
);
7440 if (!ok
&& !crtc_state
->clock_set
) {
7441 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7444 /* Compat-code for transition, will disappear. */
7445 if (!crtc_state
->clock_set
) {
7446 crtc_state
->dpll
.n
= clock
.n
;
7447 crtc_state
->dpll
.m1
= clock
.m1
;
7448 crtc_state
->dpll
.m2
= clock
.m2
;
7449 crtc_state
->dpll
.p1
= clock
.p1
;
7450 crtc_state
->dpll
.p2
= clock
.p2
;
7453 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
7454 if (crtc_state
->has_pch_encoder
) {
7455 fp
= i9xx_dpll_compute_fp(&crtc_state
->dpll
);
7456 if (has_reduced_clock
)
7457 fp2
= i9xx_dpll_compute_fp(&reduced_clock
);
7459 dpll
= ironlake_compute_dpll(crtc
, crtc_state
,
7460 &fp
, &reduced_clock
,
7461 has_reduced_clock
? &fp2
: NULL
);
7463 crtc_state
->dpll_hw_state
.dpll
= dpll
;
7464 crtc_state
->dpll_hw_state
.fp0
= fp
;
7465 if (has_reduced_clock
)
7466 crtc_state
->dpll_hw_state
.fp1
= fp2
;
7468 crtc_state
->dpll_hw_state
.fp1
= fp
;
7470 pll
= intel_get_shared_dpll(crtc
, crtc_state
);
7472 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
7473 pipe_name(crtc
->pipe
));
7478 if (is_lvds
&& has_reduced_clock
&& i915
.powersave
)
7479 crtc
->lowfreq_avail
= true;
7481 crtc
->lowfreq_avail
= false;
7486 static void intel_pch_transcoder_get_m_n(struct intel_crtc
*crtc
,
7487 struct intel_link_m_n
*m_n
)
7489 struct drm_device
*dev
= crtc
->base
.dev
;
7490 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7491 enum pipe pipe
= crtc
->pipe
;
7493 m_n
->link_m
= I915_READ(PCH_TRANS_LINK_M1(pipe
));
7494 m_n
->link_n
= I915_READ(PCH_TRANS_LINK_N1(pipe
));
7495 m_n
->gmch_m
= I915_READ(PCH_TRANS_DATA_M1(pipe
))
7497 m_n
->gmch_n
= I915_READ(PCH_TRANS_DATA_N1(pipe
));
7498 m_n
->tu
= ((I915_READ(PCH_TRANS_DATA_M1(pipe
))
7499 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
7502 static void intel_cpu_transcoder_get_m_n(struct intel_crtc
*crtc
,
7503 enum transcoder transcoder
,
7504 struct intel_link_m_n
*m_n
,
7505 struct intel_link_m_n
*m2_n2
)
7507 struct drm_device
*dev
= crtc
->base
.dev
;
7508 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7509 enum pipe pipe
= crtc
->pipe
;
7511 if (INTEL_INFO(dev
)->gen
>= 5) {
7512 m_n
->link_m
= I915_READ(PIPE_LINK_M1(transcoder
));
7513 m_n
->link_n
= I915_READ(PIPE_LINK_N1(transcoder
));
7514 m_n
->gmch_m
= I915_READ(PIPE_DATA_M1(transcoder
))
7516 m_n
->gmch_n
= I915_READ(PIPE_DATA_N1(transcoder
));
7517 m_n
->tu
= ((I915_READ(PIPE_DATA_M1(transcoder
))
7518 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
7519 /* Read M2_N2 registers only for gen < 8 (M2_N2 available for
7520 * gen < 8) and if DRRS is supported (to make sure the
7521 * registers are not unnecessarily read).
7523 if (m2_n2
&& INTEL_INFO(dev
)->gen
< 8 &&
7524 crtc
->config
->has_drrs
) {
7525 m2_n2
->link_m
= I915_READ(PIPE_LINK_M2(transcoder
));
7526 m2_n2
->link_n
= I915_READ(PIPE_LINK_N2(transcoder
));
7527 m2_n2
->gmch_m
= I915_READ(PIPE_DATA_M2(transcoder
))
7529 m2_n2
->gmch_n
= I915_READ(PIPE_DATA_N2(transcoder
));
7530 m2_n2
->tu
= ((I915_READ(PIPE_DATA_M2(transcoder
))
7531 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
7534 m_n
->link_m
= I915_READ(PIPE_LINK_M_G4X(pipe
));
7535 m_n
->link_n
= I915_READ(PIPE_LINK_N_G4X(pipe
));
7536 m_n
->gmch_m
= I915_READ(PIPE_DATA_M_G4X(pipe
))
7538 m_n
->gmch_n
= I915_READ(PIPE_DATA_N_G4X(pipe
));
7539 m_n
->tu
= ((I915_READ(PIPE_DATA_M_G4X(pipe
))
7540 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
7544 void intel_dp_get_m_n(struct intel_crtc
*crtc
,
7545 struct intel_crtc_state
*pipe_config
)
7547 if (pipe_config
->has_pch_encoder
)
7548 intel_pch_transcoder_get_m_n(crtc
, &pipe_config
->dp_m_n
);
7550 intel_cpu_transcoder_get_m_n(crtc
, pipe_config
->cpu_transcoder
,
7551 &pipe_config
->dp_m_n
,
7552 &pipe_config
->dp_m2_n2
);
7555 static void ironlake_get_fdi_m_n_config(struct intel_crtc
*crtc
,
7556 struct intel_crtc_state
*pipe_config
)
7558 intel_cpu_transcoder_get_m_n(crtc
, pipe_config
->cpu_transcoder
,
7559 &pipe_config
->fdi_m_n
, NULL
);
7562 static void skylake_get_pfit_config(struct intel_crtc
*crtc
,
7563 struct intel_crtc_state
*pipe_config
)
7565 struct drm_device
*dev
= crtc
->base
.dev
;
7566 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7569 tmp
= I915_READ(PS_CTL(crtc
->pipe
));
7571 if (tmp
& PS_ENABLE
) {
7572 pipe_config
->pch_pfit
.enabled
= true;
7573 pipe_config
->pch_pfit
.pos
= I915_READ(PS_WIN_POS(crtc
->pipe
));
7574 pipe_config
->pch_pfit
.size
= I915_READ(PS_WIN_SZ(crtc
->pipe
));
7578 static void ironlake_get_pfit_config(struct intel_crtc
*crtc
,
7579 struct intel_crtc_state
*pipe_config
)
7581 struct drm_device
*dev
= crtc
->base
.dev
;
7582 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7585 tmp
= I915_READ(PF_CTL(crtc
->pipe
));
7587 if (tmp
& PF_ENABLE
) {
7588 pipe_config
->pch_pfit
.enabled
= true;
7589 pipe_config
->pch_pfit
.pos
= I915_READ(PF_WIN_POS(crtc
->pipe
));
7590 pipe_config
->pch_pfit
.size
= I915_READ(PF_WIN_SZ(crtc
->pipe
));
7592 /* We currently do not free assignements of panel fitters on
7593 * ivb/hsw (since we don't use the higher upscaling modes which
7594 * differentiates them) so just WARN about this case for now. */
7596 WARN_ON((tmp
& PF_PIPE_SEL_MASK_IVB
) !=
7597 PF_PIPE_SEL_IVB(crtc
->pipe
));
7602 static void ironlake_get_plane_config(struct intel_crtc
*crtc
,
7603 struct intel_plane_config
*plane_config
)
7605 struct drm_device
*dev
= crtc
->base
.dev
;
7606 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7607 u32 val
, base
, offset
;
7608 int pipe
= crtc
->pipe
, plane
= crtc
->plane
;
7609 int fourcc
, pixel_format
;
7612 crtc
->base
.primary
->fb
= kzalloc(sizeof(struct intel_framebuffer
), GFP_KERNEL
);
7613 if (!crtc
->base
.primary
->fb
) {
7614 DRM_DEBUG_KMS("failed to alloc fb\n");
7618 val
= I915_READ(DSPCNTR(plane
));
7620 if (INTEL_INFO(dev
)->gen
>= 4)
7621 if (val
& DISPPLANE_TILED
)
7622 plane_config
->tiled
= true;
7624 pixel_format
= val
& DISPPLANE_PIXFORMAT_MASK
;
7625 fourcc
= intel_format_to_fourcc(pixel_format
);
7626 crtc
->base
.primary
->fb
->pixel_format
= fourcc
;
7627 crtc
->base
.primary
->fb
->bits_per_pixel
=
7628 drm_format_plane_cpp(fourcc
, 0) * 8;
7630 base
= I915_READ(DSPSURF(plane
)) & 0xfffff000;
7631 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
7632 offset
= I915_READ(DSPOFFSET(plane
));
7634 if (plane_config
->tiled
)
7635 offset
= I915_READ(DSPTILEOFF(plane
));
7637 offset
= I915_READ(DSPLINOFF(plane
));
7639 plane_config
->base
= base
;
7641 val
= I915_READ(PIPESRC(pipe
));
7642 crtc
->base
.primary
->fb
->width
= ((val
>> 16) & 0xfff) + 1;
7643 crtc
->base
.primary
->fb
->height
= ((val
>> 0) & 0xfff) + 1;
7645 val
= I915_READ(DSPSTRIDE(pipe
));
7646 crtc
->base
.primary
->fb
->pitches
[0] = val
& 0xffffffc0;
7648 aligned_height
= intel_align_height(dev
, crtc
->base
.primary
->fb
->height
,
7649 plane_config
->tiled
);
7651 plane_config
->size
= PAGE_ALIGN(crtc
->base
.primary
->fb
->pitches
[0] *
7654 DRM_DEBUG_KMS("pipe/plane %d/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
7655 pipe
, plane
, crtc
->base
.primary
->fb
->width
,
7656 crtc
->base
.primary
->fb
->height
,
7657 crtc
->base
.primary
->fb
->bits_per_pixel
, base
,
7658 crtc
->base
.primary
->fb
->pitches
[0],
7659 plane_config
->size
);
7662 static bool ironlake_get_pipe_config(struct intel_crtc
*crtc
,
7663 struct intel_crtc_state
*pipe_config
)
7665 struct drm_device
*dev
= crtc
->base
.dev
;
7666 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7669 if (!intel_display_power_is_enabled(dev_priv
,
7670 POWER_DOMAIN_PIPE(crtc
->pipe
)))
7673 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
7674 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
7676 tmp
= I915_READ(PIPECONF(crtc
->pipe
));
7677 if (!(tmp
& PIPECONF_ENABLE
))
7680 switch (tmp
& PIPECONF_BPC_MASK
) {
7682 pipe_config
->pipe_bpp
= 18;
7685 pipe_config
->pipe_bpp
= 24;
7687 case PIPECONF_10BPC
:
7688 pipe_config
->pipe_bpp
= 30;
7690 case PIPECONF_12BPC
:
7691 pipe_config
->pipe_bpp
= 36;
7697 if (tmp
& PIPECONF_COLOR_RANGE_SELECT
)
7698 pipe_config
->limited_color_range
= true;
7700 if (I915_READ(PCH_TRANSCONF(crtc
->pipe
)) & TRANS_ENABLE
) {
7701 struct intel_shared_dpll
*pll
;
7703 pipe_config
->has_pch_encoder
= true;
7705 tmp
= I915_READ(FDI_RX_CTL(crtc
->pipe
));
7706 pipe_config
->fdi_lanes
= ((FDI_DP_PORT_WIDTH_MASK
& tmp
) >>
7707 FDI_DP_PORT_WIDTH_SHIFT
) + 1;
7709 ironlake_get_fdi_m_n_config(crtc
, pipe_config
);
7711 if (HAS_PCH_IBX(dev_priv
->dev
)) {
7712 pipe_config
->shared_dpll
=
7713 (enum intel_dpll_id
) crtc
->pipe
;
7715 tmp
= I915_READ(PCH_DPLL_SEL
);
7716 if (tmp
& TRANS_DPLLB_SEL(crtc
->pipe
))
7717 pipe_config
->shared_dpll
= DPLL_ID_PCH_PLL_B
;
7719 pipe_config
->shared_dpll
= DPLL_ID_PCH_PLL_A
;
7722 pll
= &dev_priv
->shared_dplls
[pipe_config
->shared_dpll
];
7724 WARN_ON(!pll
->get_hw_state(dev_priv
, pll
,
7725 &pipe_config
->dpll_hw_state
));
7727 tmp
= pipe_config
->dpll_hw_state
.dpll
;
7728 pipe_config
->pixel_multiplier
=
7729 ((tmp
& PLL_REF_SDVO_HDMI_MULTIPLIER_MASK
)
7730 >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
) + 1;
7732 ironlake_pch_clock_get(crtc
, pipe_config
);
7734 pipe_config
->pixel_multiplier
= 1;
7737 intel_get_pipe_timings(crtc
, pipe_config
);
7739 ironlake_get_pfit_config(crtc
, pipe_config
);
7744 static void assert_can_disable_lcpll(struct drm_i915_private
*dev_priv
)
7746 struct drm_device
*dev
= dev_priv
->dev
;
7747 struct intel_crtc
*crtc
;
7749 for_each_intel_crtc(dev
, crtc
)
7750 I915_STATE_WARN(crtc
->active
, "CRTC for pipe %c enabled\n",
7751 pipe_name(crtc
->pipe
));
7753 I915_STATE_WARN(I915_READ(HSW_PWR_WELL_DRIVER
), "Power well on\n");
7754 I915_STATE_WARN(I915_READ(SPLL_CTL
) & SPLL_PLL_ENABLE
, "SPLL enabled\n");
7755 I915_STATE_WARN(I915_READ(WRPLL_CTL1
) & WRPLL_PLL_ENABLE
, "WRPLL1 enabled\n");
7756 I915_STATE_WARN(I915_READ(WRPLL_CTL2
) & WRPLL_PLL_ENABLE
, "WRPLL2 enabled\n");
7757 I915_STATE_WARN(I915_READ(PCH_PP_STATUS
) & PP_ON
, "Panel power on\n");
7758 I915_STATE_WARN(I915_READ(BLC_PWM_CPU_CTL2
) & BLM_PWM_ENABLE
,
7759 "CPU PWM1 enabled\n");
7760 if (IS_HASWELL(dev
))
7761 I915_STATE_WARN(I915_READ(HSW_BLC_PWM2_CTL
) & BLM_PWM_ENABLE
,
7762 "CPU PWM2 enabled\n");
7763 I915_STATE_WARN(I915_READ(BLC_PWM_PCH_CTL1
) & BLM_PCH_PWM_ENABLE
,
7764 "PCH PWM1 enabled\n");
7765 I915_STATE_WARN(I915_READ(UTIL_PIN_CTL
) & UTIL_PIN_ENABLE
,
7766 "Utility pin enabled\n");
7767 I915_STATE_WARN(I915_READ(PCH_GTC_CTL
) & PCH_GTC_ENABLE
, "PCH GTC enabled\n");
7770 * In theory we can still leave IRQs enabled, as long as only the HPD
7771 * interrupts remain enabled. We used to check for that, but since it's
7772 * gen-specific and since we only disable LCPLL after we fully disable
7773 * the interrupts, the check below should be enough.
7775 I915_STATE_WARN(intel_irqs_enabled(dev_priv
), "IRQs enabled\n");
7778 static uint32_t hsw_read_dcomp(struct drm_i915_private
*dev_priv
)
7780 struct drm_device
*dev
= dev_priv
->dev
;
7782 if (IS_HASWELL(dev
))
7783 return I915_READ(D_COMP_HSW
);
7785 return I915_READ(D_COMP_BDW
);
7788 static void hsw_write_dcomp(struct drm_i915_private
*dev_priv
, uint32_t val
)
7790 struct drm_device
*dev
= dev_priv
->dev
;
7792 if (IS_HASWELL(dev
)) {
7793 mutex_lock(&dev_priv
->rps
.hw_lock
);
7794 if (sandybridge_pcode_write(dev_priv
, GEN6_PCODE_WRITE_D_COMP
,
7796 DRM_ERROR("Failed to write to D_COMP\n");
7797 mutex_unlock(&dev_priv
->rps
.hw_lock
);
7799 I915_WRITE(D_COMP_BDW
, val
);
7800 POSTING_READ(D_COMP_BDW
);
7805 * This function implements pieces of two sequences from BSpec:
7806 * - Sequence for display software to disable LCPLL
7807 * - Sequence for display software to allow package C8+
7808 * The steps implemented here are just the steps that actually touch the LCPLL
7809 * register. Callers should take care of disabling all the display engine
7810 * functions, doing the mode unset, fixing interrupts, etc.
7812 static void hsw_disable_lcpll(struct drm_i915_private
*dev_priv
,
7813 bool switch_to_fclk
, bool allow_power_down
)
7817 assert_can_disable_lcpll(dev_priv
);
7819 val
= I915_READ(LCPLL_CTL
);
7821 if (switch_to_fclk
) {
7822 val
|= LCPLL_CD_SOURCE_FCLK
;
7823 I915_WRITE(LCPLL_CTL
, val
);
7825 if (wait_for_atomic_us(I915_READ(LCPLL_CTL
) &
7826 LCPLL_CD_SOURCE_FCLK_DONE
, 1))
7827 DRM_ERROR("Switching to FCLK failed\n");
7829 val
= I915_READ(LCPLL_CTL
);
7832 val
|= LCPLL_PLL_DISABLE
;
7833 I915_WRITE(LCPLL_CTL
, val
);
7834 POSTING_READ(LCPLL_CTL
);
7836 if (wait_for((I915_READ(LCPLL_CTL
) & LCPLL_PLL_LOCK
) == 0, 1))
7837 DRM_ERROR("LCPLL still locked\n");
7839 val
= hsw_read_dcomp(dev_priv
);
7840 val
|= D_COMP_COMP_DISABLE
;
7841 hsw_write_dcomp(dev_priv
, val
);
7844 if (wait_for((hsw_read_dcomp(dev_priv
) & D_COMP_RCOMP_IN_PROGRESS
) == 0,
7846 DRM_ERROR("D_COMP RCOMP still in progress\n");
7848 if (allow_power_down
) {
7849 val
= I915_READ(LCPLL_CTL
);
7850 val
|= LCPLL_POWER_DOWN_ALLOW
;
7851 I915_WRITE(LCPLL_CTL
, val
);
7852 POSTING_READ(LCPLL_CTL
);
7857 * Fully restores LCPLL, disallowing power down and switching back to LCPLL
7860 static void hsw_restore_lcpll(struct drm_i915_private
*dev_priv
)
7864 val
= I915_READ(LCPLL_CTL
);
7866 if ((val
& (LCPLL_PLL_LOCK
| LCPLL_PLL_DISABLE
| LCPLL_CD_SOURCE_FCLK
|
7867 LCPLL_POWER_DOWN_ALLOW
)) == LCPLL_PLL_LOCK
)
7871 * Make sure we're not on PC8 state before disabling PC8, otherwise
7872 * we'll hang the machine. To prevent PC8 state, just enable force_wake.
7874 * The other problem is that hsw_restore_lcpll() is called as part of
7875 * the runtime PM resume sequence, so we can't just call
7876 * gen6_gt_force_wake_get() because that function calls
7877 * intel_runtime_pm_get(), and we can't change the runtime PM refcount
7878 * while we are on the resume sequence. So to solve this problem we have
7879 * to call special forcewake code that doesn't touch runtime PM and
7880 * doesn't enable the forcewake delayed work.
7882 spin_lock_irq(&dev_priv
->uncore
.lock
);
7883 if (dev_priv
->uncore
.forcewake_count
++ == 0)
7884 dev_priv
->uncore
.funcs
.force_wake_get(dev_priv
, FORCEWAKE_ALL
);
7885 spin_unlock_irq(&dev_priv
->uncore
.lock
);
7887 if (val
& LCPLL_POWER_DOWN_ALLOW
) {
7888 val
&= ~LCPLL_POWER_DOWN_ALLOW
;
7889 I915_WRITE(LCPLL_CTL
, val
);
7890 POSTING_READ(LCPLL_CTL
);
7893 val
= hsw_read_dcomp(dev_priv
);
7894 val
|= D_COMP_COMP_FORCE
;
7895 val
&= ~D_COMP_COMP_DISABLE
;
7896 hsw_write_dcomp(dev_priv
, val
);
7898 val
= I915_READ(LCPLL_CTL
);
7899 val
&= ~LCPLL_PLL_DISABLE
;
7900 I915_WRITE(LCPLL_CTL
, val
);
7902 if (wait_for(I915_READ(LCPLL_CTL
) & LCPLL_PLL_LOCK
, 5))
7903 DRM_ERROR("LCPLL not locked yet\n");
7905 if (val
& LCPLL_CD_SOURCE_FCLK
) {
7906 val
= I915_READ(LCPLL_CTL
);
7907 val
&= ~LCPLL_CD_SOURCE_FCLK
;
7908 I915_WRITE(LCPLL_CTL
, val
);
7910 if (wait_for_atomic_us((I915_READ(LCPLL_CTL
) &
7911 LCPLL_CD_SOURCE_FCLK_DONE
) == 0, 1))
7912 DRM_ERROR("Switching back to LCPLL failed\n");
7915 /* See the big comment above. */
7916 spin_lock_irq(&dev_priv
->uncore
.lock
);
7917 if (--dev_priv
->uncore
.forcewake_count
== 0)
7918 dev_priv
->uncore
.funcs
.force_wake_put(dev_priv
, FORCEWAKE_ALL
);
7919 spin_unlock_irq(&dev_priv
->uncore
.lock
);
7923 * Package states C8 and deeper are really deep PC states that can only be
7924 * reached when all the devices on the system allow it, so even if the graphics
7925 * device allows PC8+, it doesn't mean the system will actually get to these
7926 * states. Our driver only allows PC8+ when going into runtime PM.
7928 * The requirements for PC8+ are that all the outputs are disabled, the power
7929 * well is disabled and most interrupts are disabled, and these are also
7930 * requirements for runtime PM. When these conditions are met, we manually do
7931 * the other conditions: disable the interrupts, clocks and switch LCPLL refclk
7932 * to Fclk. If we're in PC8+ and we get an non-hotplug interrupt, we can hard
7935 * When we really reach PC8 or deeper states (not just when we allow it) we lose
7936 * the state of some registers, so when we come back from PC8+ we need to
7937 * restore this state. We don't get into PC8+ if we're not in RC6, so we don't
7938 * need to take care of the registers kept by RC6. Notice that this happens even
7939 * if we don't put the device in PCI D3 state (which is what currently happens
7940 * because of the runtime PM support).
7942 * For more, read "Display Sequences for Package C8" on the hardware
7945 void hsw_enable_pc8(struct drm_i915_private
*dev_priv
)
7947 struct drm_device
*dev
= dev_priv
->dev
;
7950 DRM_DEBUG_KMS("Enabling package C8+\n");
7952 if (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) {
7953 val
= I915_READ(SOUTH_DSPCLK_GATE_D
);
7954 val
&= ~PCH_LP_PARTITION_LEVEL_DISABLE
;
7955 I915_WRITE(SOUTH_DSPCLK_GATE_D
, val
);
7958 lpt_disable_clkout_dp(dev
);
7959 hsw_disable_lcpll(dev_priv
, true, true);
7962 void hsw_disable_pc8(struct drm_i915_private
*dev_priv
)
7964 struct drm_device
*dev
= dev_priv
->dev
;
7967 DRM_DEBUG_KMS("Disabling package C8+\n");
7969 hsw_restore_lcpll(dev_priv
);
7970 lpt_init_pch_refclk(dev
);
7972 if (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) {
7973 val
= I915_READ(SOUTH_DSPCLK_GATE_D
);
7974 val
|= PCH_LP_PARTITION_LEVEL_DISABLE
;
7975 I915_WRITE(SOUTH_DSPCLK_GATE_D
, val
);
7978 intel_prepare_ddi(dev
);
7981 static int haswell_crtc_compute_clock(struct intel_crtc
*crtc
,
7982 struct intel_crtc_state
*crtc_state
)
7984 if (!intel_ddi_pll_select(crtc
, crtc_state
))
7987 crtc
->lowfreq_avail
= false;
7992 static void skylake_get_ddi_pll(struct drm_i915_private
*dev_priv
,
7994 struct intel_crtc_state
*pipe_config
)
7996 u32 temp
, dpll_ctl1
;
7998 temp
= I915_READ(DPLL_CTRL2
) & DPLL_CTRL2_DDI_CLK_SEL_MASK(port
);
7999 pipe_config
->ddi_pll_sel
= temp
>> (port
* 3 + 1);
8001 switch (pipe_config
->ddi_pll_sel
) {
8004 * On SKL the eDP DPLL (DPLL0 as we don't use SSC) is not part
8005 * of the shared DPLL framework and thus needs to be read out
8008 dpll_ctl1
= I915_READ(DPLL_CTRL1
);
8009 pipe_config
->dpll_hw_state
.ctrl1
= dpll_ctl1
& 0x3f;
8012 pipe_config
->shared_dpll
= DPLL_ID_SKL_DPLL1
;
8015 pipe_config
->shared_dpll
= DPLL_ID_SKL_DPLL2
;
8018 pipe_config
->shared_dpll
= DPLL_ID_SKL_DPLL3
;
8023 static void haswell_get_ddi_pll(struct drm_i915_private
*dev_priv
,
8025 struct intel_crtc_state
*pipe_config
)
8027 pipe_config
->ddi_pll_sel
= I915_READ(PORT_CLK_SEL(port
));
8029 switch (pipe_config
->ddi_pll_sel
) {
8030 case PORT_CLK_SEL_WRPLL1
:
8031 pipe_config
->shared_dpll
= DPLL_ID_WRPLL1
;
8033 case PORT_CLK_SEL_WRPLL2
:
8034 pipe_config
->shared_dpll
= DPLL_ID_WRPLL2
;
8039 static void haswell_get_ddi_port_state(struct intel_crtc
*crtc
,
8040 struct intel_crtc_state
*pipe_config
)
8042 struct drm_device
*dev
= crtc
->base
.dev
;
8043 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8044 struct intel_shared_dpll
*pll
;
8048 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(pipe_config
->cpu_transcoder
));
8050 port
= (tmp
& TRANS_DDI_PORT_MASK
) >> TRANS_DDI_PORT_SHIFT
;
8052 if (IS_SKYLAKE(dev
))
8053 skylake_get_ddi_pll(dev_priv
, port
, pipe_config
);
8055 haswell_get_ddi_pll(dev_priv
, port
, pipe_config
);
8057 if (pipe_config
->shared_dpll
>= 0) {
8058 pll
= &dev_priv
->shared_dplls
[pipe_config
->shared_dpll
];
8060 WARN_ON(!pll
->get_hw_state(dev_priv
, pll
,
8061 &pipe_config
->dpll_hw_state
));
8065 * Haswell has only FDI/PCH transcoder A. It is which is connected to
8066 * DDI E. So just check whether this pipe is wired to DDI E and whether
8067 * the PCH transcoder is on.
8069 if (INTEL_INFO(dev
)->gen
< 9 &&
8070 (port
== PORT_E
) && I915_READ(LPT_TRANSCONF
) & TRANS_ENABLE
) {
8071 pipe_config
->has_pch_encoder
= true;
8073 tmp
= I915_READ(FDI_RX_CTL(PIPE_A
));
8074 pipe_config
->fdi_lanes
= ((FDI_DP_PORT_WIDTH_MASK
& tmp
) >>
8075 FDI_DP_PORT_WIDTH_SHIFT
) + 1;
8077 ironlake_get_fdi_m_n_config(crtc
, pipe_config
);
8081 static bool haswell_get_pipe_config(struct intel_crtc
*crtc
,
8082 struct intel_crtc_state
*pipe_config
)
8084 struct drm_device
*dev
= crtc
->base
.dev
;
8085 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8086 enum intel_display_power_domain pfit_domain
;
8089 if (!intel_display_power_is_enabled(dev_priv
,
8090 POWER_DOMAIN_PIPE(crtc
->pipe
)))
8093 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
8094 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
8096 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP
));
8097 if (tmp
& TRANS_DDI_FUNC_ENABLE
) {
8098 enum pipe trans_edp_pipe
;
8099 switch (tmp
& TRANS_DDI_EDP_INPUT_MASK
) {
8101 WARN(1, "unknown pipe linked to edp transcoder\n");
8102 case TRANS_DDI_EDP_INPUT_A_ONOFF
:
8103 case TRANS_DDI_EDP_INPUT_A_ON
:
8104 trans_edp_pipe
= PIPE_A
;
8106 case TRANS_DDI_EDP_INPUT_B_ONOFF
:
8107 trans_edp_pipe
= PIPE_B
;
8109 case TRANS_DDI_EDP_INPUT_C_ONOFF
:
8110 trans_edp_pipe
= PIPE_C
;
8114 if (trans_edp_pipe
== crtc
->pipe
)
8115 pipe_config
->cpu_transcoder
= TRANSCODER_EDP
;
8118 if (!intel_display_power_is_enabled(dev_priv
,
8119 POWER_DOMAIN_TRANSCODER(pipe_config
->cpu_transcoder
)))
8122 tmp
= I915_READ(PIPECONF(pipe_config
->cpu_transcoder
));
8123 if (!(tmp
& PIPECONF_ENABLE
))
8126 haswell_get_ddi_port_state(crtc
, pipe_config
);
8128 intel_get_pipe_timings(crtc
, pipe_config
);
8130 pfit_domain
= POWER_DOMAIN_PIPE_PANEL_FITTER(crtc
->pipe
);
8131 if (intel_display_power_is_enabled(dev_priv
, pfit_domain
)) {
8132 if (IS_SKYLAKE(dev
))
8133 skylake_get_pfit_config(crtc
, pipe_config
);
8135 ironlake_get_pfit_config(crtc
, pipe_config
);
8138 if (IS_HASWELL(dev
))
8139 pipe_config
->ips_enabled
= hsw_crtc_supports_ips(crtc
) &&
8140 (I915_READ(IPS_CTL
) & IPS_ENABLE
);
8142 if (pipe_config
->cpu_transcoder
!= TRANSCODER_EDP
) {
8143 pipe_config
->pixel_multiplier
=
8144 I915_READ(PIPE_MULT(pipe_config
->cpu_transcoder
)) + 1;
8146 pipe_config
->pixel_multiplier
= 1;
8152 static void i845_update_cursor(struct drm_crtc
*crtc
, u32 base
)
8154 struct drm_device
*dev
= crtc
->dev
;
8155 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8156 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8157 uint32_t cntl
= 0, size
= 0;
8160 unsigned int width
= intel_crtc
->cursor_width
;
8161 unsigned int height
= intel_crtc
->cursor_height
;
8162 unsigned int stride
= roundup_pow_of_two(width
) * 4;
8166 WARN_ONCE(1, "Invalid cursor width/stride, width=%u, stride=%u\n",
8177 cntl
|= CURSOR_ENABLE
|
8178 CURSOR_GAMMA_ENABLE
|
8179 CURSOR_FORMAT_ARGB
|
8180 CURSOR_STRIDE(stride
);
8182 size
= (height
<< 12) | width
;
8185 if (intel_crtc
->cursor_cntl
!= 0 &&
8186 (intel_crtc
->cursor_base
!= base
||
8187 intel_crtc
->cursor_size
!= size
||
8188 intel_crtc
->cursor_cntl
!= cntl
)) {
8189 /* On these chipsets we can only modify the base/size/stride
8190 * whilst the cursor is disabled.
8192 I915_WRITE(_CURACNTR
, 0);
8193 POSTING_READ(_CURACNTR
);
8194 intel_crtc
->cursor_cntl
= 0;
8197 if (intel_crtc
->cursor_base
!= base
) {
8198 I915_WRITE(_CURABASE
, base
);
8199 intel_crtc
->cursor_base
= base
;
8202 if (intel_crtc
->cursor_size
!= size
) {
8203 I915_WRITE(CURSIZE
, size
);
8204 intel_crtc
->cursor_size
= size
;
8207 if (intel_crtc
->cursor_cntl
!= cntl
) {
8208 I915_WRITE(_CURACNTR
, cntl
);
8209 POSTING_READ(_CURACNTR
);
8210 intel_crtc
->cursor_cntl
= cntl
;
8214 static void i9xx_update_cursor(struct drm_crtc
*crtc
, u32 base
)
8216 struct drm_device
*dev
= crtc
->dev
;
8217 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8218 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8219 int pipe
= intel_crtc
->pipe
;
8224 cntl
= MCURSOR_GAMMA_ENABLE
;
8225 switch (intel_crtc
->cursor_width
) {
8227 cntl
|= CURSOR_MODE_64_ARGB_AX
;
8230 cntl
|= CURSOR_MODE_128_ARGB_AX
;
8233 cntl
|= CURSOR_MODE_256_ARGB_AX
;
8236 MISSING_CASE(intel_crtc
->cursor_width
);
8239 cntl
|= pipe
<< 28; /* Connect to correct pipe */
8241 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
8242 cntl
|= CURSOR_PIPE_CSC_ENABLE
;
8245 if (to_intel_plane(crtc
->cursor
)->rotation
== BIT(DRM_ROTATE_180
))
8246 cntl
|= CURSOR_ROTATE_180
;
8248 if (intel_crtc
->cursor_cntl
!= cntl
) {
8249 I915_WRITE(CURCNTR(pipe
), cntl
);
8250 POSTING_READ(CURCNTR(pipe
));
8251 intel_crtc
->cursor_cntl
= cntl
;
8254 /* and commit changes on next vblank */
8255 I915_WRITE(CURBASE(pipe
), base
);
8256 POSTING_READ(CURBASE(pipe
));
8258 intel_crtc
->cursor_base
= base
;
8261 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
8262 static void intel_crtc_update_cursor(struct drm_crtc
*crtc
,
8265 struct drm_device
*dev
= crtc
->dev
;
8266 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8267 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8268 int pipe
= intel_crtc
->pipe
;
8269 int x
= crtc
->cursor_x
;
8270 int y
= crtc
->cursor_y
;
8271 u32 base
= 0, pos
= 0;
8274 base
= intel_crtc
->cursor_addr
;
8276 if (x
>= intel_crtc
->config
->pipe_src_w
)
8279 if (y
>= intel_crtc
->config
->pipe_src_h
)
8283 if (x
+ intel_crtc
->cursor_width
<= 0)
8286 pos
|= CURSOR_POS_SIGN
<< CURSOR_X_SHIFT
;
8289 pos
|= x
<< CURSOR_X_SHIFT
;
8292 if (y
+ intel_crtc
->cursor_height
<= 0)
8295 pos
|= CURSOR_POS_SIGN
<< CURSOR_Y_SHIFT
;
8298 pos
|= y
<< CURSOR_Y_SHIFT
;
8300 if (base
== 0 && intel_crtc
->cursor_base
== 0)
8303 I915_WRITE(CURPOS(pipe
), pos
);
8305 /* ILK+ do this automagically */
8306 if (HAS_GMCH_DISPLAY(dev
) &&
8307 to_intel_plane(crtc
->cursor
)->rotation
== BIT(DRM_ROTATE_180
)) {
8308 base
+= (intel_crtc
->cursor_height
*
8309 intel_crtc
->cursor_width
- 1) * 4;
8312 if (IS_845G(dev
) || IS_I865G(dev
))
8313 i845_update_cursor(crtc
, base
);
8315 i9xx_update_cursor(crtc
, base
);
8318 static bool cursor_size_ok(struct drm_device
*dev
,
8319 uint32_t width
, uint32_t height
)
8321 if (width
== 0 || height
== 0)
8325 * 845g/865g are special in that they are only limited by
8326 * the width of their cursors, the height is arbitrary up to
8327 * the precision of the register. Everything else requires
8328 * square cursors, limited to a few power-of-two sizes.
8330 if (IS_845G(dev
) || IS_I865G(dev
)) {
8331 if ((width
& 63) != 0)
8334 if (width
> (IS_845G(dev
) ? 64 : 512))
8340 switch (width
| height
) {
8355 static void intel_crtc_gamma_set(struct drm_crtc
*crtc
, u16
*red
, u16
*green
,
8356 u16
*blue
, uint32_t start
, uint32_t size
)
8358 int end
= (start
+ size
> 256) ? 256 : start
+ size
, i
;
8359 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8361 for (i
= start
; i
< end
; i
++) {
8362 intel_crtc
->lut_r
[i
] = red
[i
] >> 8;
8363 intel_crtc
->lut_g
[i
] = green
[i
] >> 8;
8364 intel_crtc
->lut_b
[i
] = blue
[i
] >> 8;
8367 intel_crtc_load_lut(crtc
);
8370 /* VESA 640x480x72Hz mode to set on the pipe */
8371 static struct drm_display_mode load_detect_mode
= {
8372 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT
, 31500, 640, 664,
8373 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
8376 struct drm_framebuffer
*
8377 __intel_framebuffer_create(struct drm_device
*dev
,
8378 struct drm_mode_fb_cmd2
*mode_cmd
,
8379 struct drm_i915_gem_object
*obj
)
8381 struct intel_framebuffer
*intel_fb
;
8384 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
8386 drm_gem_object_unreference(&obj
->base
);
8387 return ERR_PTR(-ENOMEM
);
8390 ret
= intel_framebuffer_init(dev
, intel_fb
, mode_cmd
, obj
);
8394 return &intel_fb
->base
;
8396 drm_gem_object_unreference(&obj
->base
);
8399 return ERR_PTR(ret
);
8402 static struct drm_framebuffer
*
8403 intel_framebuffer_create(struct drm_device
*dev
,
8404 struct drm_mode_fb_cmd2
*mode_cmd
,
8405 struct drm_i915_gem_object
*obj
)
8407 struct drm_framebuffer
*fb
;
8410 ret
= i915_mutex_lock_interruptible(dev
);
8412 return ERR_PTR(ret
);
8413 fb
= __intel_framebuffer_create(dev
, mode_cmd
, obj
);
8414 mutex_unlock(&dev
->struct_mutex
);
8420 intel_framebuffer_pitch_for_width(int width
, int bpp
)
8422 u32 pitch
= DIV_ROUND_UP(width
* bpp
, 8);
8423 return ALIGN(pitch
, 64);
8427 intel_framebuffer_size_for_mode(struct drm_display_mode
*mode
, int bpp
)
8429 u32 pitch
= intel_framebuffer_pitch_for_width(mode
->hdisplay
, bpp
);
8430 return PAGE_ALIGN(pitch
* mode
->vdisplay
);
8433 static struct drm_framebuffer
*
8434 intel_framebuffer_create_for_mode(struct drm_device
*dev
,
8435 struct drm_display_mode
*mode
,
8438 struct drm_i915_gem_object
*obj
;
8439 struct drm_mode_fb_cmd2 mode_cmd
= { 0 };
8441 obj
= i915_gem_alloc_object(dev
,
8442 intel_framebuffer_size_for_mode(mode
, bpp
));
8444 return ERR_PTR(-ENOMEM
);
8446 mode_cmd
.width
= mode
->hdisplay
;
8447 mode_cmd
.height
= mode
->vdisplay
;
8448 mode_cmd
.pitches
[0] = intel_framebuffer_pitch_for_width(mode_cmd
.width
,
8450 mode_cmd
.pixel_format
= drm_mode_legacy_fb_format(bpp
, depth
);
8452 return intel_framebuffer_create(dev
, &mode_cmd
, obj
);
8455 static struct drm_framebuffer
*
8456 mode_fits_in_fbdev(struct drm_device
*dev
,
8457 struct drm_display_mode
*mode
)
8459 #ifdef CONFIG_DRM_I915_FBDEV
8460 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8461 struct drm_i915_gem_object
*obj
;
8462 struct drm_framebuffer
*fb
;
8464 if (!dev_priv
->fbdev
)
8467 if (!dev_priv
->fbdev
->fb
)
8470 obj
= dev_priv
->fbdev
->fb
->obj
;
8473 fb
= &dev_priv
->fbdev
->fb
->base
;
8474 if (fb
->pitches
[0] < intel_framebuffer_pitch_for_width(mode
->hdisplay
,
8475 fb
->bits_per_pixel
))
8478 if (obj
->base
.size
< mode
->vdisplay
* fb
->pitches
[0])
8487 bool intel_get_load_detect_pipe(struct drm_connector
*connector
,
8488 struct drm_display_mode
*mode
,
8489 struct intel_load_detect_pipe
*old
,
8490 struct drm_modeset_acquire_ctx
*ctx
)
8492 struct intel_crtc
*intel_crtc
;
8493 struct intel_encoder
*intel_encoder
=
8494 intel_attached_encoder(connector
);
8495 struct drm_crtc
*possible_crtc
;
8496 struct drm_encoder
*encoder
= &intel_encoder
->base
;
8497 struct drm_crtc
*crtc
= NULL
;
8498 struct drm_device
*dev
= encoder
->dev
;
8499 struct drm_framebuffer
*fb
;
8500 struct drm_mode_config
*config
= &dev
->mode_config
;
8503 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
8504 connector
->base
.id
, connector
->name
,
8505 encoder
->base
.id
, encoder
->name
);
8508 ret
= drm_modeset_lock(&config
->connection_mutex
, ctx
);
8513 * Algorithm gets a little messy:
8515 * - if the connector already has an assigned crtc, use it (but make
8516 * sure it's on first)
8518 * - try to find the first unused crtc that can drive this connector,
8519 * and use that if we find one
8522 /* See if we already have a CRTC for this connector */
8523 if (encoder
->crtc
) {
8524 crtc
= encoder
->crtc
;
8526 ret
= drm_modeset_lock(&crtc
->mutex
, ctx
);
8529 ret
= drm_modeset_lock(&crtc
->primary
->mutex
, ctx
);
8533 old
->dpms_mode
= connector
->dpms
;
8534 old
->load_detect_temp
= false;
8536 /* Make sure the crtc and connector are running */
8537 if (connector
->dpms
!= DRM_MODE_DPMS_ON
)
8538 connector
->funcs
->dpms(connector
, DRM_MODE_DPMS_ON
);
8543 /* Find an unused one (if possible) */
8544 for_each_crtc(dev
, possible_crtc
) {
8546 if (!(encoder
->possible_crtcs
& (1 << i
)))
8548 if (possible_crtc
->enabled
)
8550 /* This can occur when applying the pipe A quirk on resume. */
8551 if (to_intel_crtc(possible_crtc
)->new_enabled
)
8554 crtc
= possible_crtc
;
8559 * If we didn't find an unused CRTC, don't use any.
8562 DRM_DEBUG_KMS("no pipe available for load-detect\n");
8566 ret
= drm_modeset_lock(&crtc
->mutex
, ctx
);
8569 ret
= drm_modeset_lock(&crtc
->primary
->mutex
, ctx
);
8572 intel_encoder
->new_crtc
= to_intel_crtc(crtc
);
8573 to_intel_connector(connector
)->new_encoder
= intel_encoder
;
8575 intel_crtc
= to_intel_crtc(crtc
);
8576 intel_crtc
->new_enabled
= true;
8577 intel_crtc
->new_config
= intel_crtc
->config
;
8578 old
->dpms_mode
= connector
->dpms
;
8579 old
->load_detect_temp
= true;
8580 old
->release_fb
= NULL
;
8583 mode
= &load_detect_mode
;
8585 /* We need a framebuffer large enough to accommodate all accesses
8586 * that the plane may generate whilst we perform load detection.
8587 * We can not rely on the fbcon either being present (we get called
8588 * during its initialisation to detect all boot displays, or it may
8589 * not even exist) or that it is large enough to satisfy the
8592 fb
= mode_fits_in_fbdev(dev
, mode
);
8594 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
8595 fb
= intel_framebuffer_create_for_mode(dev
, mode
, 24, 32);
8596 old
->release_fb
= fb
;
8598 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
8600 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
8604 if (intel_set_mode(crtc
, mode
, 0, 0, fb
)) {
8605 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
8606 if (old
->release_fb
)
8607 old
->release_fb
->funcs
->destroy(old
->release_fb
);
8611 /* let the connector get through one full cycle before testing */
8612 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
8616 intel_crtc
->new_enabled
= crtc
->enabled
;
8617 if (intel_crtc
->new_enabled
)
8618 intel_crtc
->new_config
= intel_crtc
->config
;
8620 intel_crtc
->new_config
= NULL
;
8622 if (ret
== -EDEADLK
) {
8623 drm_modeset_backoff(ctx
);
8630 void intel_release_load_detect_pipe(struct drm_connector
*connector
,
8631 struct intel_load_detect_pipe
*old
)
8633 struct intel_encoder
*intel_encoder
=
8634 intel_attached_encoder(connector
);
8635 struct drm_encoder
*encoder
= &intel_encoder
->base
;
8636 struct drm_crtc
*crtc
= encoder
->crtc
;
8637 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8639 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
8640 connector
->base
.id
, connector
->name
,
8641 encoder
->base
.id
, encoder
->name
);
8643 if (old
->load_detect_temp
) {
8644 to_intel_connector(connector
)->new_encoder
= NULL
;
8645 intel_encoder
->new_crtc
= NULL
;
8646 intel_crtc
->new_enabled
= false;
8647 intel_crtc
->new_config
= NULL
;
8648 intel_set_mode(crtc
, NULL
, 0, 0, NULL
);
8650 if (old
->release_fb
) {
8651 drm_framebuffer_unregister_private(old
->release_fb
);
8652 drm_framebuffer_unreference(old
->release_fb
);
8658 /* Switch crtc and encoder back off if necessary */
8659 if (old
->dpms_mode
!= DRM_MODE_DPMS_ON
)
8660 connector
->funcs
->dpms(connector
, old
->dpms_mode
);
8663 static int i9xx_pll_refclk(struct drm_device
*dev
,
8664 const struct intel_crtc_state
*pipe_config
)
8666 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8667 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
8669 if ((dpll
& PLL_REF_INPUT_MASK
) == PLLB_REF_INPUT_SPREADSPECTRUMIN
)
8670 return dev_priv
->vbt
.lvds_ssc_freq
;
8671 else if (HAS_PCH_SPLIT(dev
))
8673 else if (!IS_GEN2(dev
))
8679 /* Returns the clock of the currently programmed mode of the given pipe. */
8680 static void i9xx_crtc_clock_get(struct intel_crtc
*crtc
,
8681 struct intel_crtc_state
*pipe_config
)
8683 struct drm_device
*dev
= crtc
->base
.dev
;
8684 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8685 int pipe
= pipe_config
->cpu_transcoder
;
8686 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
8688 intel_clock_t clock
;
8689 int refclk
= i9xx_pll_refclk(dev
, pipe_config
);
8691 if ((dpll
& DISPLAY_RATE_SELECT_FPA1
) == 0)
8692 fp
= pipe_config
->dpll_hw_state
.fp0
;
8694 fp
= pipe_config
->dpll_hw_state
.fp1
;
8696 clock
.m1
= (fp
& FP_M1_DIV_MASK
) >> FP_M1_DIV_SHIFT
;
8697 if (IS_PINEVIEW(dev
)) {
8698 clock
.n
= ffs((fp
& FP_N_PINEVIEW_DIV_MASK
) >> FP_N_DIV_SHIFT
) - 1;
8699 clock
.m2
= (fp
& FP_M2_PINEVIEW_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
8701 clock
.n
= (fp
& FP_N_DIV_MASK
) >> FP_N_DIV_SHIFT
;
8702 clock
.m2
= (fp
& FP_M2_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
8705 if (!IS_GEN2(dev
)) {
8706 if (IS_PINEVIEW(dev
))
8707 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW
) >>
8708 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
);
8710 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK
) >>
8711 DPLL_FPA01_P1_POST_DIV_SHIFT
);
8713 switch (dpll
& DPLL_MODE_MASK
) {
8714 case DPLLB_MODE_DAC_SERIAL
:
8715 clock
.p2
= dpll
& DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
?
8718 case DPLLB_MODE_LVDS
:
8719 clock
.p2
= dpll
& DPLLB_LVDS_P2_CLOCK_DIV_7
?
8723 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
8724 "mode\n", (int)(dpll
& DPLL_MODE_MASK
));
8728 if (IS_PINEVIEW(dev
))
8729 pineview_clock(refclk
, &clock
);
8731 i9xx_clock(refclk
, &clock
);
8733 u32 lvds
= IS_I830(dev
) ? 0 : I915_READ(LVDS
);
8734 bool is_lvds
= (pipe
== 1) && (lvds
& LVDS_PORT_EN
);
8737 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS
) >>
8738 DPLL_FPA01_P1_POST_DIV_SHIFT
);
8740 if (lvds
& LVDS_CLKB_POWER_UP
)
8745 if (dpll
& PLL_P1_DIVIDE_BY_TWO
)
8748 clock
.p1
= ((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830
) >>
8749 DPLL_FPA01_P1_POST_DIV_SHIFT
) + 2;
8751 if (dpll
& PLL_P2_DIVIDE_BY_4
)
8757 i9xx_clock(refclk
, &clock
);
8761 * This value includes pixel_multiplier. We will use
8762 * port_clock to compute adjusted_mode.crtc_clock in the
8763 * encoder's get_config() function.
8765 pipe_config
->port_clock
= clock
.dot
;
8768 int intel_dotclock_calculate(int link_freq
,
8769 const struct intel_link_m_n
*m_n
)
8772 * The calculation for the data clock is:
8773 * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp
8774 * But we want to avoid losing precison if possible, so:
8775 * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp))
8777 * and the link clock is simpler:
8778 * link_clock = (m * link_clock) / n
8784 return div_u64((u64
)m_n
->link_m
* link_freq
, m_n
->link_n
);
8787 static void ironlake_pch_clock_get(struct intel_crtc
*crtc
,
8788 struct intel_crtc_state
*pipe_config
)
8790 struct drm_device
*dev
= crtc
->base
.dev
;
8792 /* read out port_clock from the DPLL */
8793 i9xx_crtc_clock_get(crtc
, pipe_config
);
8796 * This value does not include pixel_multiplier.
8797 * We will check that port_clock and adjusted_mode.crtc_clock
8798 * agree once we know their relationship in the encoder's
8799 * get_config() function.
8801 pipe_config
->base
.adjusted_mode
.crtc_clock
=
8802 intel_dotclock_calculate(intel_fdi_link_freq(dev
) * 10000,
8803 &pipe_config
->fdi_m_n
);
8806 /** Returns the currently programmed mode of the given pipe. */
8807 struct drm_display_mode
*intel_crtc_mode_get(struct drm_device
*dev
,
8808 struct drm_crtc
*crtc
)
8810 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8811 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8812 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
8813 struct drm_display_mode
*mode
;
8814 struct intel_crtc_state pipe_config
;
8815 int htot
= I915_READ(HTOTAL(cpu_transcoder
));
8816 int hsync
= I915_READ(HSYNC(cpu_transcoder
));
8817 int vtot
= I915_READ(VTOTAL(cpu_transcoder
));
8818 int vsync
= I915_READ(VSYNC(cpu_transcoder
));
8819 enum pipe pipe
= intel_crtc
->pipe
;
8821 mode
= kzalloc(sizeof(*mode
), GFP_KERNEL
);
8826 * Construct a pipe_config sufficient for getting the clock info
8827 * back out of crtc_clock_get.
8829 * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need
8830 * to use a real value here instead.
8832 pipe_config
.cpu_transcoder
= (enum transcoder
) pipe
;
8833 pipe_config
.pixel_multiplier
= 1;
8834 pipe_config
.dpll_hw_state
.dpll
= I915_READ(DPLL(pipe
));
8835 pipe_config
.dpll_hw_state
.fp0
= I915_READ(FP0(pipe
));
8836 pipe_config
.dpll_hw_state
.fp1
= I915_READ(FP1(pipe
));
8837 i9xx_crtc_clock_get(intel_crtc
, &pipe_config
);
8839 mode
->clock
= pipe_config
.port_clock
/ pipe_config
.pixel_multiplier
;
8840 mode
->hdisplay
= (htot
& 0xffff) + 1;
8841 mode
->htotal
= ((htot
& 0xffff0000) >> 16) + 1;
8842 mode
->hsync_start
= (hsync
& 0xffff) + 1;
8843 mode
->hsync_end
= ((hsync
& 0xffff0000) >> 16) + 1;
8844 mode
->vdisplay
= (vtot
& 0xffff) + 1;
8845 mode
->vtotal
= ((vtot
& 0xffff0000) >> 16) + 1;
8846 mode
->vsync_start
= (vsync
& 0xffff) + 1;
8847 mode
->vsync_end
= ((vsync
& 0xffff0000) >> 16) + 1;
8849 drm_mode_set_name(mode
);
8854 static void intel_decrease_pllclock(struct drm_crtc
*crtc
)
8856 struct drm_device
*dev
= crtc
->dev
;
8857 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8858 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8860 if (!HAS_GMCH_DISPLAY(dev
))
8863 if (!dev_priv
->lvds_downclock_avail
)
8867 * Since this is called by a timer, we should never get here in
8870 if (!HAS_PIPE_CXSR(dev
) && intel_crtc
->lowfreq_avail
) {
8871 int pipe
= intel_crtc
->pipe
;
8872 int dpll_reg
= DPLL(pipe
);
8875 DRM_DEBUG_DRIVER("downclocking LVDS\n");
8877 assert_panel_unlocked(dev_priv
, pipe
);
8879 dpll
= I915_READ(dpll_reg
);
8880 dpll
|= DISPLAY_RATE_SELECT_FPA1
;
8881 I915_WRITE(dpll_reg
, dpll
);
8882 intel_wait_for_vblank(dev
, pipe
);
8883 dpll
= I915_READ(dpll_reg
);
8884 if (!(dpll
& DISPLAY_RATE_SELECT_FPA1
))
8885 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
8890 void intel_mark_busy(struct drm_device
*dev
)
8892 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8894 if (dev_priv
->mm
.busy
)
8897 intel_runtime_pm_get(dev_priv
);
8898 i915_update_gfx_val(dev_priv
);
8899 dev_priv
->mm
.busy
= true;
8902 void intel_mark_idle(struct drm_device
*dev
)
8904 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8905 struct drm_crtc
*crtc
;
8907 if (!dev_priv
->mm
.busy
)
8910 dev_priv
->mm
.busy
= false;
8912 if (!i915
.powersave
)
8915 for_each_crtc(dev
, crtc
) {
8916 if (!crtc
->primary
->fb
)
8919 intel_decrease_pllclock(crtc
);
8922 if (INTEL_INFO(dev
)->gen
>= 6)
8923 gen6_rps_idle(dev
->dev_private
);
8926 intel_runtime_pm_put(dev_priv
);
8929 static void intel_crtc_set_state(struct intel_crtc
*crtc
,
8930 struct intel_crtc_state
*crtc_state
)
8932 kfree(crtc
->config
);
8933 crtc
->config
= crtc_state
;
8934 crtc
->base
.state
= &crtc_state
->base
;
8937 static void intel_crtc_destroy(struct drm_crtc
*crtc
)
8939 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8940 struct drm_device
*dev
= crtc
->dev
;
8941 struct intel_unpin_work
*work
;
8943 spin_lock_irq(&dev
->event_lock
);
8944 work
= intel_crtc
->unpin_work
;
8945 intel_crtc
->unpin_work
= NULL
;
8946 spin_unlock_irq(&dev
->event_lock
);
8949 cancel_work_sync(&work
->work
);
8953 intel_crtc_set_state(intel_crtc
, NULL
);
8954 drm_crtc_cleanup(crtc
);
8959 static void intel_unpin_work_fn(struct work_struct
*__work
)
8961 struct intel_unpin_work
*work
=
8962 container_of(__work
, struct intel_unpin_work
, work
);
8963 struct drm_device
*dev
= work
->crtc
->dev
;
8964 enum pipe pipe
= to_intel_crtc(work
->crtc
)->pipe
;
8966 mutex_lock(&dev
->struct_mutex
);
8967 intel_unpin_fb_obj(work
->old_fb_obj
);
8968 drm_gem_object_unreference(&work
->pending_flip_obj
->base
);
8969 drm_gem_object_unreference(&work
->old_fb_obj
->base
);
8971 intel_fbc_update(dev
);
8973 if (work
->flip_queued_req
)
8974 i915_gem_request_assign(&work
->flip_queued_req
, NULL
);
8975 mutex_unlock(&dev
->struct_mutex
);
8977 intel_frontbuffer_flip_complete(dev
, INTEL_FRONTBUFFER_PRIMARY(pipe
));
8979 BUG_ON(atomic_read(&to_intel_crtc(work
->crtc
)->unpin_work_count
) == 0);
8980 atomic_dec(&to_intel_crtc(work
->crtc
)->unpin_work_count
);
8985 static void do_intel_finish_page_flip(struct drm_device
*dev
,
8986 struct drm_crtc
*crtc
)
8988 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8989 struct intel_unpin_work
*work
;
8990 unsigned long flags
;
8992 /* Ignore early vblank irqs */
8993 if (intel_crtc
== NULL
)
8997 * This is called both by irq handlers and the reset code (to complete
8998 * lost pageflips) so needs the full irqsave spinlocks.
9000 spin_lock_irqsave(&dev
->event_lock
, flags
);
9001 work
= intel_crtc
->unpin_work
;
9003 /* Ensure we don't miss a work->pending update ... */
9006 if (work
== NULL
|| atomic_read(&work
->pending
) < INTEL_FLIP_COMPLETE
) {
9007 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9011 page_flip_completed(intel_crtc
);
9013 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9016 void intel_finish_page_flip(struct drm_device
*dev
, int pipe
)
9018 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9019 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
9021 do_intel_finish_page_flip(dev
, crtc
);
9024 void intel_finish_page_flip_plane(struct drm_device
*dev
, int plane
)
9026 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9027 struct drm_crtc
*crtc
= dev_priv
->plane_to_crtc_mapping
[plane
];
9029 do_intel_finish_page_flip(dev
, crtc
);
9032 /* Is 'a' after or equal to 'b'? */
9033 static bool g4x_flip_count_after_eq(u32 a
, u32 b
)
9035 return !((a
- b
) & 0x80000000);
9038 static bool page_flip_finished(struct intel_crtc
*crtc
)
9040 struct drm_device
*dev
= crtc
->base
.dev
;
9041 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9043 if (i915_reset_in_progress(&dev_priv
->gpu_error
) ||
9044 crtc
->reset_counter
!= atomic_read(&dev_priv
->gpu_error
.reset_counter
))
9048 * The relevant registers doen't exist on pre-ctg.
9049 * As the flip done interrupt doesn't trigger for mmio
9050 * flips on gmch platforms, a flip count check isn't
9051 * really needed there. But since ctg has the registers,
9052 * include it in the check anyway.
9054 if (INTEL_INFO(dev
)->gen
< 5 && !IS_G4X(dev
))
9058 * A DSPSURFLIVE check isn't enough in case the mmio and CS flips
9059 * used the same base address. In that case the mmio flip might
9060 * have completed, but the CS hasn't even executed the flip yet.
9062 * A flip count check isn't enough as the CS might have updated
9063 * the base address just after start of vblank, but before we
9064 * managed to process the interrupt. This means we'd complete the
9067 * Combining both checks should get us a good enough result. It may
9068 * still happen that the CS flip has been executed, but has not
9069 * yet actually completed. But in case the base address is the same
9070 * anyway, we don't really care.
9072 return (I915_READ(DSPSURFLIVE(crtc
->plane
)) & ~0xfff) ==
9073 crtc
->unpin_work
->gtt_offset
&&
9074 g4x_flip_count_after_eq(I915_READ(PIPE_FLIPCOUNT_GM45(crtc
->pipe
)),
9075 crtc
->unpin_work
->flip_count
);
9078 void intel_prepare_page_flip(struct drm_device
*dev
, int plane
)
9080 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9081 struct intel_crtc
*intel_crtc
=
9082 to_intel_crtc(dev_priv
->plane_to_crtc_mapping
[plane
]);
9083 unsigned long flags
;
9087 * This is called both by irq handlers and the reset code (to complete
9088 * lost pageflips) so needs the full irqsave spinlocks.
9090 * NB: An MMIO update of the plane base pointer will also
9091 * generate a page-flip completion irq, i.e. every modeset
9092 * is also accompanied by a spurious intel_prepare_page_flip().
9094 spin_lock_irqsave(&dev
->event_lock
, flags
);
9095 if (intel_crtc
->unpin_work
&& page_flip_finished(intel_crtc
))
9096 atomic_inc_not_zero(&intel_crtc
->unpin_work
->pending
);
9097 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
9100 static inline void intel_mark_page_flip_active(struct intel_crtc
*intel_crtc
)
9102 /* Ensure that the work item is consistent when activating it ... */
9104 atomic_set(&intel_crtc
->unpin_work
->pending
, INTEL_FLIP_PENDING
);
9105 /* and that it is marked active as soon as the irq could fire. */
9109 static int intel_gen2_queue_flip(struct drm_device
*dev
,
9110 struct drm_crtc
*crtc
,
9111 struct drm_framebuffer
*fb
,
9112 struct drm_i915_gem_object
*obj
,
9113 struct intel_engine_cs
*ring
,
9116 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9120 ret
= intel_ring_begin(ring
, 6);
9124 /* Can't queue multiple flips, so wait for the previous
9125 * one to finish before executing the next.
9127 if (intel_crtc
->plane
)
9128 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
9130 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
9131 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
9132 intel_ring_emit(ring
, MI_NOOP
);
9133 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
9134 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
9135 intel_ring_emit(ring
, fb
->pitches
[0]);
9136 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9137 intel_ring_emit(ring
, 0); /* aux display base address, unused */
9139 intel_mark_page_flip_active(intel_crtc
);
9140 __intel_ring_advance(ring
);
9144 static int intel_gen3_queue_flip(struct drm_device
*dev
,
9145 struct drm_crtc
*crtc
,
9146 struct drm_framebuffer
*fb
,
9147 struct drm_i915_gem_object
*obj
,
9148 struct intel_engine_cs
*ring
,
9151 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9155 ret
= intel_ring_begin(ring
, 6);
9159 if (intel_crtc
->plane
)
9160 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
9162 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
9163 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
9164 intel_ring_emit(ring
, MI_NOOP
);
9165 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
|
9166 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
9167 intel_ring_emit(ring
, fb
->pitches
[0]);
9168 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9169 intel_ring_emit(ring
, MI_NOOP
);
9171 intel_mark_page_flip_active(intel_crtc
);
9172 __intel_ring_advance(ring
);
9176 static int intel_gen4_queue_flip(struct drm_device
*dev
,
9177 struct drm_crtc
*crtc
,
9178 struct drm_framebuffer
*fb
,
9179 struct drm_i915_gem_object
*obj
,
9180 struct intel_engine_cs
*ring
,
9183 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9184 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9185 uint32_t pf
, pipesrc
;
9188 ret
= intel_ring_begin(ring
, 4);
9192 /* i965+ uses the linear or tiled offsets from the
9193 * Display Registers (which do not change across a page-flip)
9194 * so we need only reprogram the base address.
9196 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
9197 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
9198 intel_ring_emit(ring
, fb
->pitches
[0]);
9199 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
|
9202 /* XXX Enabling the panel-fitter across page-flip is so far
9203 * untested on non-native modes, so ignore it for now.
9204 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
9207 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
9208 intel_ring_emit(ring
, pf
| pipesrc
);
9210 intel_mark_page_flip_active(intel_crtc
);
9211 __intel_ring_advance(ring
);
9215 static int intel_gen6_queue_flip(struct drm_device
*dev
,
9216 struct drm_crtc
*crtc
,
9217 struct drm_framebuffer
*fb
,
9218 struct drm_i915_gem_object
*obj
,
9219 struct intel_engine_cs
*ring
,
9222 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9223 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9224 uint32_t pf
, pipesrc
;
9227 ret
= intel_ring_begin(ring
, 4);
9231 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
9232 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
9233 intel_ring_emit(ring
, fb
->pitches
[0] | obj
->tiling_mode
);
9234 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9236 /* Contrary to the suggestions in the documentation,
9237 * "Enable Panel Fitter" does not seem to be required when page
9238 * flipping with a non-native mode, and worse causes a normal
9240 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
9243 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
9244 intel_ring_emit(ring
, pf
| pipesrc
);
9246 intel_mark_page_flip_active(intel_crtc
);
9247 __intel_ring_advance(ring
);
9251 static int intel_gen7_queue_flip(struct drm_device
*dev
,
9252 struct drm_crtc
*crtc
,
9253 struct drm_framebuffer
*fb
,
9254 struct drm_i915_gem_object
*obj
,
9255 struct intel_engine_cs
*ring
,
9258 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9259 uint32_t plane_bit
= 0;
9262 switch (intel_crtc
->plane
) {
9264 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_A
;
9267 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_B
;
9270 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_C
;
9273 WARN_ONCE(1, "unknown plane in flip command\n");
9278 if (ring
->id
== RCS
) {
9281 * On Gen 8, SRM is now taking an extra dword to accommodate
9282 * 48bits addresses, and we need a NOOP for the batch size to
9290 * BSpec MI_DISPLAY_FLIP for IVB:
9291 * "The full packet must be contained within the same cache line."
9293 * Currently the LRI+SRM+MI_DISPLAY_FLIP all fit within the same
9294 * cacheline, if we ever start emitting more commands before
9295 * the MI_DISPLAY_FLIP we may need to first emit everything else,
9296 * then do the cacheline alignment, and finally emit the
9299 ret
= intel_ring_cacheline_align(ring
);
9303 ret
= intel_ring_begin(ring
, len
);
9307 /* Unmask the flip-done completion message. Note that the bspec says that
9308 * we should do this for both the BCS and RCS, and that we must not unmask
9309 * more than one flip event at any time (or ensure that one flip message
9310 * can be sent by waiting for flip-done prior to queueing new flips).
9311 * Experimentation says that BCS works despite DERRMR masking all
9312 * flip-done completion events and that unmasking all planes at once
9313 * for the RCS also doesn't appear to drop events. Setting the DERRMR
9314 * to zero does lead to lockups within MI_DISPLAY_FLIP.
9316 if (ring
->id
== RCS
) {
9317 intel_ring_emit(ring
, MI_LOAD_REGISTER_IMM(1));
9318 intel_ring_emit(ring
, DERRMR
);
9319 intel_ring_emit(ring
, ~(DERRMR_PIPEA_PRI_FLIP_DONE
|
9320 DERRMR_PIPEB_PRI_FLIP_DONE
|
9321 DERRMR_PIPEC_PRI_FLIP_DONE
));
9323 intel_ring_emit(ring
, MI_STORE_REGISTER_MEM_GEN8(1) |
9324 MI_SRM_LRM_GLOBAL_GTT
);
9326 intel_ring_emit(ring
, MI_STORE_REGISTER_MEM(1) |
9327 MI_SRM_LRM_GLOBAL_GTT
);
9328 intel_ring_emit(ring
, DERRMR
);
9329 intel_ring_emit(ring
, ring
->scratch
.gtt_offset
+ 256);
9331 intel_ring_emit(ring
, 0);
9332 intel_ring_emit(ring
, MI_NOOP
);
9336 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
| plane_bit
);
9337 intel_ring_emit(ring
, (fb
->pitches
[0] | obj
->tiling_mode
));
9338 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9339 intel_ring_emit(ring
, (MI_NOOP
));
9341 intel_mark_page_flip_active(intel_crtc
);
9342 __intel_ring_advance(ring
);
9346 static bool use_mmio_flip(struct intel_engine_cs
*ring
,
9347 struct drm_i915_gem_object
*obj
)
9350 * This is not being used for older platforms, because
9351 * non-availability of flip done interrupt forces us to use
9352 * CS flips. Older platforms derive flip done using some clever
9353 * tricks involving the flip_pending status bits and vblank irqs.
9354 * So using MMIO flips there would disrupt this mechanism.
9360 if (INTEL_INFO(ring
->dev
)->gen
< 5)
9363 if (i915
.use_mmio_flip
< 0)
9365 else if (i915
.use_mmio_flip
> 0)
9367 else if (i915
.enable_execlists
)
9370 return ring
!= i915_gem_request_get_ring(obj
->last_read_req
);
9373 static void skl_do_mmio_flip(struct intel_crtc
*intel_crtc
)
9375 struct drm_device
*dev
= intel_crtc
->base
.dev
;
9376 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9377 struct drm_framebuffer
*fb
= intel_crtc
->base
.primary
->fb
;
9378 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
9379 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
9380 const enum pipe pipe
= intel_crtc
->pipe
;
9383 ctl
= I915_READ(PLANE_CTL(pipe
, 0));
9384 ctl
&= ~PLANE_CTL_TILED_MASK
;
9385 if (obj
->tiling_mode
== I915_TILING_X
)
9386 ctl
|= PLANE_CTL_TILED_X
;
9389 * The stride is either expressed as a multiple of 64 bytes chunks for
9390 * linear buffers or in number of tiles for tiled buffers.
9392 stride
= fb
->pitches
[0] >> 6;
9393 if (obj
->tiling_mode
== I915_TILING_X
)
9394 stride
= fb
->pitches
[0] >> 9; /* X tiles are 512 bytes wide */
9397 * Both PLANE_CTL and PLANE_STRIDE are not updated on vblank but on
9398 * PLANE_SURF updates, the update is then guaranteed to be atomic.
9400 I915_WRITE(PLANE_CTL(pipe
, 0), ctl
);
9401 I915_WRITE(PLANE_STRIDE(pipe
, 0), stride
);
9403 I915_WRITE(PLANE_SURF(pipe
, 0), intel_crtc
->unpin_work
->gtt_offset
);
9404 POSTING_READ(PLANE_SURF(pipe
, 0));
9407 static void ilk_do_mmio_flip(struct intel_crtc
*intel_crtc
)
9409 struct drm_device
*dev
= intel_crtc
->base
.dev
;
9410 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9411 struct intel_framebuffer
*intel_fb
=
9412 to_intel_framebuffer(intel_crtc
->base
.primary
->fb
);
9413 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
9417 reg
= DSPCNTR(intel_crtc
->plane
);
9418 dspcntr
= I915_READ(reg
);
9420 if (obj
->tiling_mode
!= I915_TILING_NONE
)
9421 dspcntr
|= DISPPLANE_TILED
;
9423 dspcntr
&= ~DISPPLANE_TILED
;
9425 I915_WRITE(reg
, dspcntr
);
9427 I915_WRITE(DSPSURF(intel_crtc
->plane
),
9428 intel_crtc
->unpin_work
->gtt_offset
);
9429 POSTING_READ(DSPSURF(intel_crtc
->plane
));
9434 * XXX: This is the temporary way to update the plane registers until we get
9435 * around to using the usual plane update functions for MMIO flips
9437 static void intel_do_mmio_flip(struct intel_crtc
*intel_crtc
)
9439 struct drm_device
*dev
= intel_crtc
->base
.dev
;
9441 u32 start_vbl_count
;
9443 intel_mark_page_flip_active(intel_crtc
);
9445 atomic_update
= intel_pipe_update_start(intel_crtc
, &start_vbl_count
);
9447 if (INTEL_INFO(dev
)->gen
>= 9)
9448 skl_do_mmio_flip(intel_crtc
);
9450 /* use_mmio_flip() retricts MMIO flips to ilk+ */
9451 ilk_do_mmio_flip(intel_crtc
);
9454 intel_pipe_update_end(intel_crtc
, start_vbl_count
);
9457 static void intel_mmio_flip_work_func(struct work_struct
*work
)
9459 struct intel_crtc
*crtc
=
9460 container_of(work
, struct intel_crtc
, mmio_flip
.work
);
9461 struct intel_mmio_flip
*mmio_flip
;
9463 mmio_flip
= &crtc
->mmio_flip
;
9465 WARN_ON(__i915_wait_request(mmio_flip
->req
,
9466 crtc
->reset_counter
,
9467 false, NULL
, NULL
) != 0);
9469 intel_do_mmio_flip(crtc
);
9470 if (mmio_flip
->req
) {
9471 mutex_lock(&crtc
->base
.dev
->struct_mutex
);
9472 i915_gem_request_assign(&mmio_flip
->req
, NULL
);
9473 mutex_unlock(&crtc
->base
.dev
->struct_mutex
);
9477 static int intel_queue_mmio_flip(struct drm_device
*dev
,
9478 struct drm_crtc
*crtc
,
9479 struct drm_framebuffer
*fb
,
9480 struct drm_i915_gem_object
*obj
,
9481 struct intel_engine_cs
*ring
,
9484 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9486 i915_gem_request_assign(&intel_crtc
->mmio_flip
.req
,
9487 obj
->last_write_req
);
9489 schedule_work(&intel_crtc
->mmio_flip
.work
);
9494 static int intel_gen9_queue_flip(struct drm_device
*dev
,
9495 struct drm_crtc
*crtc
,
9496 struct drm_framebuffer
*fb
,
9497 struct drm_i915_gem_object
*obj
,
9498 struct intel_engine_cs
*ring
,
9501 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9502 uint32_t plane
= 0, stride
;
9505 switch(intel_crtc
->pipe
) {
9507 plane
= MI_DISPLAY_FLIP_SKL_PLANE_1_A
;
9510 plane
= MI_DISPLAY_FLIP_SKL_PLANE_1_B
;
9513 plane
= MI_DISPLAY_FLIP_SKL_PLANE_1_C
;
9516 WARN_ONCE(1, "unknown plane in flip command\n");
9520 switch (obj
->tiling_mode
) {
9521 case I915_TILING_NONE
:
9522 stride
= fb
->pitches
[0] >> 6;
9525 stride
= fb
->pitches
[0] >> 9;
9528 WARN_ONCE(1, "unknown tiling in flip command\n");
9532 ret
= intel_ring_begin(ring
, 10);
9536 intel_ring_emit(ring
, MI_LOAD_REGISTER_IMM(1));
9537 intel_ring_emit(ring
, DERRMR
);
9538 intel_ring_emit(ring
, ~(DERRMR_PIPEA_PRI_FLIP_DONE
|
9539 DERRMR_PIPEB_PRI_FLIP_DONE
|
9540 DERRMR_PIPEC_PRI_FLIP_DONE
));
9541 intel_ring_emit(ring
, MI_STORE_REGISTER_MEM_GEN8(1) |
9542 MI_SRM_LRM_GLOBAL_GTT
);
9543 intel_ring_emit(ring
, DERRMR
);
9544 intel_ring_emit(ring
, ring
->scratch
.gtt_offset
+ 256);
9545 intel_ring_emit(ring
, 0);
9547 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
| plane
);
9548 intel_ring_emit(ring
, stride
<< 6 | obj
->tiling_mode
);
9549 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
9551 intel_mark_page_flip_active(intel_crtc
);
9552 __intel_ring_advance(ring
);
9557 static int intel_default_queue_flip(struct drm_device
*dev
,
9558 struct drm_crtc
*crtc
,
9559 struct drm_framebuffer
*fb
,
9560 struct drm_i915_gem_object
*obj
,
9561 struct intel_engine_cs
*ring
,
9567 static bool __intel_pageflip_stall_check(struct drm_device
*dev
,
9568 struct drm_crtc
*crtc
)
9570 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9571 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9572 struct intel_unpin_work
*work
= intel_crtc
->unpin_work
;
9575 if (atomic_read(&work
->pending
) >= INTEL_FLIP_COMPLETE
)
9578 if (!work
->enable_stall_check
)
9581 if (work
->flip_ready_vblank
== 0) {
9582 if (work
->flip_queued_req
&&
9583 !i915_gem_request_completed(work
->flip_queued_req
, true))
9586 work
->flip_ready_vblank
= drm_vblank_count(dev
, intel_crtc
->pipe
);
9589 if (drm_vblank_count(dev
, intel_crtc
->pipe
) - work
->flip_ready_vblank
< 3)
9592 /* Potential stall - if we see that the flip has happened,
9593 * assume a missed interrupt. */
9594 if (INTEL_INFO(dev
)->gen
>= 4)
9595 addr
= I915_HI_DISPBASE(I915_READ(DSPSURF(intel_crtc
->plane
)));
9597 addr
= I915_READ(DSPADDR(intel_crtc
->plane
));
9599 /* There is a potential issue here with a false positive after a flip
9600 * to the same address. We could address this by checking for a
9601 * non-incrementing frame counter.
9603 return addr
== work
->gtt_offset
;
9606 void intel_check_page_flip(struct drm_device
*dev
, int pipe
)
9608 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9609 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
9610 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9617 spin_lock(&dev
->event_lock
);
9618 if (intel_crtc
->unpin_work
&& __intel_pageflip_stall_check(dev
, crtc
)) {
9619 WARN_ONCE(1, "Kicking stuck page flip: queued at %d, now %d\n",
9620 intel_crtc
->unpin_work
->flip_queued_vblank
, drm_vblank_count(dev
, pipe
));
9621 page_flip_completed(intel_crtc
);
9623 spin_unlock(&dev
->event_lock
);
9626 static int intel_crtc_page_flip(struct drm_crtc
*crtc
,
9627 struct drm_framebuffer
*fb
,
9628 struct drm_pending_vblank_event
*event
,
9629 uint32_t page_flip_flags
)
9631 struct drm_device
*dev
= crtc
->dev
;
9632 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9633 struct drm_framebuffer
*old_fb
= crtc
->primary
->fb
;
9634 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
9635 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9636 struct drm_plane
*primary
= crtc
->primary
;
9637 enum pipe pipe
= intel_crtc
->pipe
;
9638 struct intel_unpin_work
*work
;
9639 struct intel_engine_cs
*ring
;
9643 * drm_mode_page_flip_ioctl() should already catch this, but double
9644 * check to be safe. In the future we may enable pageflipping from
9645 * a disabled primary plane.
9647 if (WARN_ON(intel_fb_obj(old_fb
) == NULL
))
9650 /* Can't change pixel format via MI display flips. */
9651 if (fb
->pixel_format
!= crtc
->primary
->fb
->pixel_format
)
9655 * TILEOFF/LINOFF registers can't be changed via MI display flips.
9656 * Note that pitch changes could also affect these register.
9658 if (INTEL_INFO(dev
)->gen
> 3 &&
9659 (fb
->offsets
[0] != crtc
->primary
->fb
->offsets
[0] ||
9660 fb
->pitches
[0] != crtc
->primary
->fb
->pitches
[0]))
9663 if (i915_terminally_wedged(&dev_priv
->gpu_error
))
9666 work
= kzalloc(sizeof(*work
), GFP_KERNEL
);
9670 work
->event
= event
;
9672 work
->old_fb_obj
= intel_fb_obj(old_fb
);
9673 INIT_WORK(&work
->work
, intel_unpin_work_fn
);
9675 ret
= drm_crtc_vblank_get(crtc
);
9679 /* We borrow the event spin lock for protecting unpin_work */
9680 spin_lock_irq(&dev
->event_lock
);
9681 if (intel_crtc
->unpin_work
) {
9682 /* Before declaring the flip queue wedged, check if
9683 * the hardware completed the operation behind our backs.
9685 if (__intel_pageflip_stall_check(dev
, crtc
)) {
9686 DRM_DEBUG_DRIVER("flip queue: previous flip completed, continuing\n");
9687 page_flip_completed(intel_crtc
);
9689 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
9690 spin_unlock_irq(&dev
->event_lock
);
9692 drm_crtc_vblank_put(crtc
);
9697 intel_crtc
->unpin_work
= work
;
9698 spin_unlock_irq(&dev
->event_lock
);
9700 if (atomic_read(&intel_crtc
->unpin_work_count
) >= 2)
9701 flush_workqueue(dev_priv
->wq
);
9703 ret
= i915_mutex_lock_interruptible(dev
);
9707 /* Reference the objects for the scheduled work. */
9708 drm_gem_object_reference(&work
->old_fb_obj
->base
);
9709 drm_gem_object_reference(&obj
->base
);
9711 crtc
->primary
->fb
= fb
;
9713 work
->pending_flip_obj
= obj
;
9715 atomic_inc(&intel_crtc
->unpin_work_count
);
9716 intel_crtc
->reset_counter
= atomic_read(&dev_priv
->gpu_error
.reset_counter
);
9718 if (INTEL_INFO(dev
)->gen
>= 5 || IS_G4X(dev
))
9719 work
->flip_count
= I915_READ(PIPE_FLIPCOUNT_GM45(pipe
)) + 1;
9721 if (IS_VALLEYVIEW(dev
)) {
9722 ring
= &dev_priv
->ring
[BCS
];
9723 if (obj
->tiling_mode
!= work
->old_fb_obj
->tiling_mode
)
9724 /* vlv: DISPLAY_FLIP fails to change tiling */
9726 } else if (IS_IVYBRIDGE(dev
) || IS_HASWELL(dev
)) {
9727 ring
= &dev_priv
->ring
[BCS
];
9728 } else if (INTEL_INFO(dev
)->gen
>= 7) {
9729 ring
= i915_gem_request_get_ring(obj
->last_read_req
);
9730 if (ring
== NULL
|| ring
->id
!= RCS
)
9731 ring
= &dev_priv
->ring
[BCS
];
9733 ring
= &dev_priv
->ring
[RCS
];
9736 ret
= intel_pin_and_fence_fb_obj(crtc
->primary
, fb
, ring
);
9738 goto cleanup_pending
;
9741 i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
;
9743 if (use_mmio_flip(ring
, obj
)) {
9744 ret
= intel_queue_mmio_flip(dev
, crtc
, fb
, obj
, ring
,
9749 i915_gem_request_assign(&work
->flip_queued_req
,
9750 obj
->last_write_req
);
9752 ret
= dev_priv
->display
.queue_flip(dev
, crtc
, fb
, obj
, ring
,
9757 i915_gem_request_assign(&work
->flip_queued_req
,
9758 intel_ring_get_request(ring
));
9761 work
->flip_queued_vblank
= drm_vblank_count(dev
, intel_crtc
->pipe
);
9762 work
->enable_stall_check
= true;
9764 i915_gem_track_fb(work
->old_fb_obj
, obj
,
9765 INTEL_FRONTBUFFER_PRIMARY(pipe
));
9767 intel_fbc_disable(dev
);
9768 intel_frontbuffer_flip_prepare(dev
, INTEL_FRONTBUFFER_PRIMARY(pipe
));
9769 mutex_unlock(&dev
->struct_mutex
);
9771 trace_i915_flip_request(intel_crtc
->plane
, obj
);
9776 intel_unpin_fb_obj(obj
);
9778 atomic_dec(&intel_crtc
->unpin_work_count
);
9779 crtc
->primary
->fb
= old_fb
;
9780 drm_gem_object_unreference(&work
->old_fb_obj
->base
);
9781 drm_gem_object_unreference(&obj
->base
);
9782 mutex_unlock(&dev
->struct_mutex
);
9785 spin_lock_irq(&dev
->event_lock
);
9786 intel_crtc
->unpin_work
= NULL
;
9787 spin_unlock_irq(&dev
->event_lock
);
9789 drm_crtc_vblank_put(crtc
);
9795 ret
= intel_plane_restore(primary
);
9796 if (ret
== 0 && event
) {
9797 spin_lock_irq(&dev
->event_lock
);
9798 drm_send_vblank_event(dev
, pipe
, event
);
9799 spin_unlock_irq(&dev
->event_lock
);
9805 static struct drm_crtc_helper_funcs intel_helper_funcs
= {
9806 .mode_set_base_atomic
= intel_pipe_set_base_atomic
,
9807 .load_lut
= intel_crtc_load_lut
,
9808 .atomic_begin
= intel_begin_crtc_commit
,
9809 .atomic_flush
= intel_finish_crtc_commit
,
9813 * intel_modeset_update_staged_output_state
9815 * Updates the staged output configuration state, e.g. after we've read out the
9818 static void intel_modeset_update_staged_output_state(struct drm_device
*dev
)
9820 struct intel_crtc
*crtc
;
9821 struct intel_encoder
*encoder
;
9822 struct intel_connector
*connector
;
9824 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
9826 connector
->new_encoder
=
9827 to_intel_encoder(connector
->base
.encoder
);
9830 for_each_intel_encoder(dev
, encoder
) {
9832 to_intel_crtc(encoder
->base
.crtc
);
9835 for_each_intel_crtc(dev
, crtc
) {
9836 crtc
->new_enabled
= crtc
->base
.enabled
;
9838 if (crtc
->new_enabled
)
9839 crtc
->new_config
= crtc
->config
;
9841 crtc
->new_config
= NULL
;
9846 * intel_modeset_commit_output_state
9848 * This function copies the stage display pipe configuration to the real one.
9850 static void intel_modeset_commit_output_state(struct drm_device
*dev
)
9852 struct intel_crtc
*crtc
;
9853 struct intel_encoder
*encoder
;
9854 struct intel_connector
*connector
;
9856 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
9858 connector
->base
.encoder
= &connector
->new_encoder
->base
;
9861 for_each_intel_encoder(dev
, encoder
) {
9862 encoder
->base
.crtc
= &encoder
->new_crtc
->base
;
9865 for_each_intel_crtc(dev
, crtc
) {
9866 crtc
->base
.enabled
= crtc
->new_enabled
;
9871 connected_sink_compute_bpp(struct intel_connector
*connector
,
9872 struct intel_crtc_state
*pipe_config
)
9874 int bpp
= pipe_config
->pipe_bpp
;
9876 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n",
9877 connector
->base
.base
.id
,
9878 connector
->base
.name
);
9880 /* Don't use an invalid EDID bpc value */
9881 if (connector
->base
.display_info
.bpc
&&
9882 connector
->base
.display_info
.bpc
* 3 < bpp
) {
9883 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
9884 bpp
, connector
->base
.display_info
.bpc
*3);
9885 pipe_config
->pipe_bpp
= connector
->base
.display_info
.bpc
*3;
9888 /* Clamp bpp to 8 on screens without EDID 1.4 */
9889 if (connector
->base
.display_info
.bpc
== 0 && bpp
> 24) {
9890 DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
9892 pipe_config
->pipe_bpp
= 24;
9897 compute_baseline_pipe_bpp(struct intel_crtc
*crtc
,
9898 struct drm_framebuffer
*fb
,
9899 struct intel_crtc_state
*pipe_config
)
9901 struct drm_device
*dev
= crtc
->base
.dev
;
9902 struct intel_connector
*connector
;
9905 switch (fb
->pixel_format
) {
9907 bpp
= 8*3; /* since we go through a colormap */
9909 case DRM_FORMAT_XRGB1555
:
9910 case DRM_FORMAT_ARGB1555
:
9911 /* checked in intel_framebuffer_init already */
9912 if (WARN_ON(INTEL_INFO(dev
)->gen
> 3))
9914 case DRM_FORMAT_RGB565
:
9915 bpp
= 6*3; /* min is 18bpp */
9917 case DRM_FORMAT_XBGR8888
:
9918 case DRM_FORMAT_ABGR8888
:
9919 /* checked in intel_framebuffer_init already */
9920 if (WARN_ON(INTEL_INFO(dev
)->gen
< 4))
9922 case DRM_FORMAT_XRGB8888
:
9923 case DRM_FORMAT_ARGB8888
:
9926 case DRM_FORMAT_XRGB2101010
:
9927 case DRM_FORMAT_ARGB2101010
:
9928 case DRM_FORMAT_XBGR2101010
:
9929 case DRM_FORMAT_ABGR2101010
:
9930 /* checked in intel_framebuffer_init already */
9931 if (WARN_ON(INTEL_INFO(dev
)->gen
< 4))
9935 /* TODO: gen4+ supports 16 bpc floating point, too. */
9937 DRM_DEBUG_KMS("unsupported depth\n");
9941 pipe_config
->pipe_bpp
= bpp
;
9943 /* Clamp display bpp to EDID value */
9944 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
9946 if (!connector
->new_encoder
||
9947 connector
->new_encoder
->new_crtc
!= crtc
)
9950 connected_sink_compute_bpp(connector
, pipe_config
);
9956 static void intel_dump_crtc_timings(const struct drm_display_mode
*mode
)
9958 DRM_DEBUG_KMS("crtc timings: %d %d %d %d %d %d %d %d %d, "
9959 "type: 0x%x flags: 0x%x\n",
9961 mode
->crtc_hdisplay
, mode
->crtc_hsync_start
,
9962 mode
->crtc_hsync_end
, mode
->crtc_htotal
,
9963 mode
->crtc_vdisplay
, mode
->crtc_vsync_start
,
9964 mode
->crtc_vsync_end
, mode
->crtc_vtotal
, mode
->type
, mode
->flags
);
9967 static void intel_dump_pipe_config(struct intel_crtc
*crtc
,
9968 struct intel_crtc_state
*pipe_config
,
9969 const char *context
)
9971 DRM_DEBUG_KMS("[CRTC:%d]%s config for pipe %c\n", crtc
->base
.base
.id
,
9972 context
, pipe_name(crtc
->pipe
));
9974 DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config
->cpu_transcoder
));
9975 DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n",
9976 pipe_config
->pipe_bpp
, pipe_config
->dither
);
9977 DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
9978 pipe_config
->has_pch_encoder
,
9979 pipe_config
->fdi_lanes
,
9980 pipe_config
->fdi_m_n
.gmch_m
, pipe_config
->fdi_m_n
.gmch_n
,
9981 pipe_config
->fdi_m_n
.link_m
, pipe_config
->fdi_m_n
.link_n
,
9982 pipe_config
->fdi_m_n
.tu
);
9983 DRM_DEBUG_KMS("dp: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
9984 pipe_config
->has_dp_encoder
,
9985 pipe_config
->dp_m_n
.gmch_m
, pipe_config
->dp_m_n
.gmch_n
,
9986 pipe_config
->dp_m_n
.link_m
, pipe_config
->dp_m_n
.link_n
,
9987 pipe_config
->dp_m_n
.tu
);
9989 DRM_DEBUG_KMS("dp: %i, gmch_m2: %u, gmch_n2: %u, link_m2: %u, link_n2: %u, tu2: %u\n",
9990 pipe_config
->has_dp_encoder
,
9991 pipe_config
->dp_m2_n2
.gmch_m
,
9992 pipe_config
->dp_m2_n2
.gmch_n
,
9993 pipe_config
->dp_m2_n2
.link_m
,
9994 pipe_config
->dp_m2_n2
.link_n
,
9995 pipe_config
->dp_m2_n2
.tu
);
9997 DRM_DEBUG_KMS("audio: %i, infoframes: %i\n",
9998 pipe_config
->has_audio
,
9999 pipe_config
->has_infoframe
);
10001 DRM_DEBUG_KMS("requested mode:\n");
10002 drm_mode_debug_printmodeline(&pipe_config
->base
.mode
);
10003 DRM_DEBUG_KMS("adjusted mode:\n");
10004 drm_mode_debug_printmodeline(&pipe_config
->base
.adjusted_mode
);
10005 intel_dump_crtc_timings(&pipe_config
->base
.adjusted_mode
);
10006 DRM_DEBUG_KMS("port clock: %d\n", pipe_config
->port_clock
);
10007 DRM_DEBUG_KMS("pipe src size: %dx%d\n",
10008 pipe_config
->pipe_src_w
, pipe_config
->pipe_src_h
);
10009 DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n",
10010 pipe_config
->gmch_pfit
.control
,
10011 pipe_config
->gmch_pfit
.pgm_ratios
,
10012 pipe_config
->gmch_pfit
.lvds_border_bits
);
10013 DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n",
10014 pipe_config
->pch_pfit
.pos
,
10015 pipe_config
->pch_pfit
.size
,
10016 pipe_config
->pch_pfit
.enabled
? "enabled" : "disabled");
10017 DRM_DEBUG_KMS("ips: %i\n", pipe_config
->ips_enabled
);
10018 DRM_DEBUG_KMS("double wide: %i\n", pipe_config
->double_wide
);
10021 static bool encoders_cloneable(const struct intel_encoder
*a
,
10022 const struct intel_encoder
*b
)
10024 /* masks could be asymmetric, so check both ways */
10025 return a
== b
|| (a
->cloneable
& (1 << b
->type
) &&
10026 b
->cloneable
& (1 << a
->type
));
10029 static bool check_single_encoder_cloning(struct intel_crtc
*crtc
,
10030 struct intel_encoder
*encoder
)
10032 struct drm_device
*dev
= crtc
->base
.dev
;
10033 struct intel_encoder
*source_encoder
;
10035 for_each_intel_encoder(dev
, source_encoder
) {
10036 if (source_encoder
->new_crtc
!= crtc
)
10039 if (!encoders_cloneable(encoder
, source_encoder
))
10046 static bool check_encoder_cloning(struct intel_crtc
*crtc
)
10048 struct drm_device
*dev
= crtc
->base
.dev
;
10049 struct intel_encoder
*encoder
;
10051 for_each_intel_encoder(dev
, encoder
) {
10052 if (encoder
->new_crtc
!= crtc
)
10055 if (!check_single_encoder_cloning(crtc
, encoder
))
10062 static bool check_digital_port_conflicts(struct drm_device
*dev
)
10064 struct intel_connector
*connector
;
10065 unsigned int used_ports
= 0;
10068 * Walk the connector list instead of the encoder
10069 * list to detect the problem on ddi platforms
10070 * where there's just one encoder per digital port.
10072 list_for_each_entry(connector
,
10073 &dev
->mode_config
.connector_list
, base
.head
) {
10074 struct intel_encoder
*encoder
= connector
->new_encoder
;
10079 WARN_ON(!encoder
->new_crtc
);
10081 switch (encoder
->type
) {
10082 unsigned int port_mask
;
10083 case INTEL_OUTPUT_UNKNOWN
:
10084 if (WARN_ON(!HAS_DDI(dev
)))
10086 case INTEL_OUTPUT_DISPLAYPORT
:
10087 case INTEL_OUTPUT_HDMI
:
10088 case INTEL_OUTPUT_EDP
:
10089 port_mask
= 1 << enc_to_dig_port(&encoder
->base
)->port
;
10091 /* the same port mustn't appear more than once */
10092 if (used_ports
& port_mask
)
10095 used_ports
|= port_mask
;
10104 static struct intel_crtc_state
*
10105 intel_modeset_pipe_config(struct drm_crtc
*crtc
,
10106 struct drm_framebuffer
*fb
,
10107 struct drm_display_mode
*mode
)
10109 struct drm_device
*dev
= crtc
->dev
;
10110 struct intel_encoder
*encoder
;
10111 struct intel_crtc_state
*pipe_config
;
10112 int plane_bpp
, ret
= -EINVAL
;
10115 if (!check_encoder_cloning(to_intel_crtc(crtc
))) {
10116 DRM_DEBUG_KMS("rejecting invalid cloning configuration\n");
10117 return ERR_PTR(-EINVAL
);
10120 if (!check_digital_port_conflicts(dev
)) {
10121 DRM_DEBUG_KMS("rejecting conflicting digital port configuration\n");
10122 return ERR_PTR(-EINVAL
);
10125 pipe_config
= kzalloc(sizeof(*pipe_config
), GFP_KERNEL
);
10127 return ERR_PTR(-ENOMEM
);
10129 drm_mode_copy(&pipe_config
->base
.adjusted_mode
, mode
);
10130 drm_mode_copy(&pipe_config
->base
.mode
, mode
);
10132 pipe_config
->cpu_transcoder
=
10133 (enum transcoder
) to_intel_crtc(crtc
)->pipe
;
10134 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
10137 * Sanitize sync polarity flags based on requested ones. If neither
10138 * positive or negative polarity is requested, treat this as meaning
10139 * negative polarity.
10141 if (!(pipe_config
->base
.adjusted_mode
.flags
&
10142 (DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NHSYNC
)))
10143 pipe_config
->base
.adjusted_mode
.flags
|= DRM_MODE_FLAG_NHSYNC
;
10145 if (!(pipe_config
->base
.adjusted_mode
.flags
&
10146 (DRM_MODE_FLAG_PVSYNC
| DRM_MODE_FLAG_NVSYNC
)))
10147 pipe_config
->base
.adjusted_mode
.flags
|= DRM_MODE_FLAG_NVSYNC
;
10149 /* Compute a starting value for pipe_config->pipe_bpp taking the source
10150 * plane pixel format and any sink constraints into account. Returns the
10151 * source plane bpp so that dithering can be selected on mismatches
10152 * after encoders and crtc also have had their say. */
10153 plane_bpp
= compute_baseline_pipe_bpp(to_intel_crtc(crtc
),
10159 * Determine the real pipe dimensions. Note that stereo modes can
10160 * increase the actual pipe size due to the frame doubling and
10161 * insertion of additional space for blanks between the frame. This
10162 * is stored in the crtc timings. We use the requested mode to do this
10163 * computation to clearly distinguish it from the adjusted mode, which
10164 * can be changed by the connectors in the below retry loop.
10166 drm_crtc_get_hv_timing(&pipe_config
->base
.mode
,
10167 &pipe_config
->pipe_src_w
,
10168 &pipe_config
->pipe_src_h
);
10171 /* Ensure the port clock defaults are reset when retrying. */
10172 pipe_config
->port_clock
= 0;
10173 pipe_config
->pixel_multiplier
= 1;
10175 /* Fill in default crtc timings, allow encoders to overwrite them. */
10176 drm_mode_set_crtcinfo(&pipe_config
->base
.adjusted_mode
,
10177 CRTC_STEREO_DOUBLE
);
10179 /* Pass our mode to the connectors and the CRTC to give them a chance to
10180 * adjust it according to limitations or connector properties, and also
10181 * a chance to reject the mode entirely.
10183 for_each_intel_encoder(dev
, encoder
) {
10185 if (&encoder
->new_crtc
->base
!= crtc
)
10188 if (!(encoder
->compute_config(encoder
, pipe_config
))) {
10189 DRM_DEBUG_KMS("Encoder config failure\n");
10194 /* Set default port clock if not overwritten by the encoder. Needs to be
10195 * done afterwards in case the encoder adjusts the mode. */
10196 if (!pipe_config
->port_clock
)
10197 pipe_config
->port_clock
= pipe_config
->base
.adjusted_mode
.crtc_clock
10198 * pipe_config
->pixel_multiplier
;
10200 ret
= intel_crtc_compute_config(to_intel_crtc(crtc
), pipe_config
);
10202 DRM_DEBUG_KMS("CRTC fixup failed\n");
10206 if (ret
== RETRY
) {
10207 if (WARN(!retry
, "loop in pipe configuration computation\n")) {
10212 DRM_DEBUG_KMS("CRTC bw constrained, retrying\n");
10214 goto encoder_retry
;
10217 pipe_config
->dither
= pipe_config
->pipe_bpp
!= plane_bpp
;
10218 DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n",
10219 plane_bpp
, pipe_config
->pipe_bpp
, pipe_config
->dither
);
10221 return pipe_config
;
10223 kfree(pipe_config
);
10224 return ERR_PTR(ret
);
10227 /* Computes which crtcs are affected and sets the relevant bits in the mask. For
10228 * simplicity we use the crtc's pipe number (because it's easier to obtain). */
10230 intel_modeset_affected_pipes(struct drm_crtc
*crtc
, unsigned *modeset_pipes
,
10231 unsigned *prepare_pipes
, unsigned *disable_pipes
)
10233 struct intel_crtc
*intel_crtc
;
10234 struct drm_device
*dev
= crtc
->dev
;
10235 struct intel_encoder
*encoder
;
10236 struct intel_connector
*connector
;
10237 struct drm_crtc
*tmp_crtc
;
10239 *disable_pipes
= *modeset_pipes
= *prepare_pipes
= 0;
10241 /* Check which crtcs have changed outputs connected to them, these need
10242 * to be part of the prepare_pipes mask. We don't (yet) support global
10243 * modeset across multiple crtcs, so modeset_pipes will only have one
10244 * bit set at most. */
10245 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
10247 if (connector
->base
.encoder
== &connector
->new_encoder
->base
)
10250 if (connector
->base
.encoder
) {
10251 tmp_crtc
= connector
->base
.encoder
->crtc
;
10253 *prepare_pipes
|= 1 << to_intel_crtc(tmp_crtc
)->pipe
;
10256 if (connector
->new_encoder
)
10258 1 << connector
->new_encoder
->new_crtc
->pipe
;
10261 for_each_intel_encoder(dev
, encoder
) {
10262 if (encoder
->base
.crtc
== &encoder
->new_crtc
->base
)
10265 if (encoder
->base
.crtc
) {
10266 tmp_crtc
= encoder
->base
.crtc
;
10268 *prepare_pipes
|= 1 << to_intel_crtc(tmp_crtc
)->pipe
;
10271 if (encoder
->new_crtc
)
10272 *prepare_pipes
|= 1 << encoder
->new_crtc
->pipe
;
10275 /* Check for pipes that will be enabled/disabled ... */
10276 for_each_intel_crtc(dev
, intel_crtc
) {
10277 if (intel_crtc
->base
.enabled
== intel_crtc
->new_enabled
)
10280 if (!intel_crtc
->new_enabled
)
10281 *disable_pipes
|= 1 << intel_crtc
->pipe
;
10283 *prepare_pipes
|= 1 << intel_crtc
->pipe
;
10287 /* set_mode is also used to update properties on life display pipes. */
10288 intel_crtc
= to_intel_crtc(crtc
);
10289 if (intel_crtc
->new_enabled
)
10290 *prepare_pipes
|= 1 << intel_crtc
->pipe
;
10293 * For simplicity do a full modeset on any pipe where the output routing
10294 * changed. We could be more clever, but that would require us to be
10295 * more careful with calling the relevant encoder->mode_set functions.
10297 if (*prepare_pipes
)
10298 *modeset_pipes
= *prepare_pipes
;
10300 /* ... and mask these out. */
10301 *modeset_pipes
&= ~(*disable_pipes
);
10302 *prepare_pipes
&= ~(*disable_pipes
);
10305 * HACK: We don't (yet) fully support global modesets. intel_set_config
10306 * obies this rule, but the modeset restore mode of
10307 * intel_modeset_setup_hw_state does not.
10309 *modeset_pipes
&= 1 << intel_crtc
->pipe
;
10310 *prepare_pipes
&= 1 << intel_crtc
->pipe
;
10312 DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
10313 *modeset_pipes
, *prepare_pipes
, *disable_pipes
);
10316 static bool intel_crtc_in_use(struct drm_crtc
*crtc
)
10318 struct drm_encoder
*encoder
;
10319 struct drm_device
*dev
= crtc
->dev
;
10321 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
)
10322 if (encoder
->crtc
== crtc
)
10329 intel_modeset_update_state(struct drm_device
*dev
, unsigned prepare_pipes
)
10331 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10332 struct intel_encoder
*intel_encoder
;
10333 struct intel_crtc
*intel_crtc
;
10334 struct drm_connector
*connector
;
10336 intel_shared_dpll_commit(dev_priv
);
10338 for_each_intel_encoder(dev
, intel_encoder
) {
10339 if (!intel_encoder
->base
.crtc
)
10342 intel_crtc
= to_intel_crtc(intel_encoder
->base
.crtc
);
10344 if (prepare_pipes
& (1 << intel_crtc
->pipe
))
10345 intel_encoder
->connectors_active
= false;
10348 intel_modeset_commit_output_state(dev
);
10350 /* Double check state. */
10351 for_each_intel_crtc(dev
, intel_crtc
) {
10352 WARN_ON(intel_crtc
->base
.enabled
!= intel_crtc_in_use(&intel_crtc
->base
));
10353 WARN_ON(intel_crtc
->new_config
&&
10354 intel_crtc
->new_config
!= intel_crtc
->config
);
10355 WARN_ON(intel_crtc
->base
.enabled
!= !!intel_crtc
->new_config
);
10358 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
10359 if (!connector
->encoder
|| !connector
->encoder
->crtc
)
10362 intel_crtc
= to_intel_crtc(connector
->encoder
->crtc
);
10364 if (prepare_pipes
& (1 << intel_crtc
->pipe
)) {
10365 struct drm_property
*dpms_property
=
10366 dev
->mode_config
.dpms_property
;
10368 connector
->dpms
= DRM_MODE_DPMS_ON
;
10369 drm_object_property_set_value(&connector
->base
,
10373 intel_encoder
= to_intel_encoder(connector
->encoder
);
10374 intel_encoder
->connectors_active
= true;
10380 static bool intel_fuzzy_clock_check(int clock1
, int clock2
)
10384 if (clock1
== clock2
)
10387 if (!clock1
|| !clock2
)
10390 diff
= abs(clock1
- clock2
);
10392 if (((((diff
+ clock1
+ clock2
) * 100)) / (clock1
+ clock2
)) < 105)
10398 #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
10399 list_for_each_entry((intel_crtc), \
10400 &(dev)->mode_config.crtc_list, \
10402 if (mask & (1 <<(intel_crtc)->pipe))
10405 intel_pipe_config_compare(struct drm_device
*dev
,
10406 struct intel_crtc_state
*current_config
,
10407 struct intel_crtc_state
*pipe_config
)
10409 #define PIPE_CONF_CHECK_X(name) \
10410 if (current_config->name != pipe_config->name) { \
10411 DRM_ERROR("mismatch in " #name " " \
10412 "(expected 0x%08x, found 0x%08x)\n", \
10413 current_config->name, \
10414 pipe_config->name); \
10418 #define PIPE_CONF_CHECK_I(name) \
10419 if (current_config->name != pipe_config->name) { \
10420 DRM_ERROR("mismatch in " #name " " \
10421 "(expected %i, found %i)\n", \
10422 current_config->name, \
10423 pipe_config->name); \
10427 /* This is required for BDW+ where there is only one set of registers for
10428 * switching between high and low RR.
10429 * This macro can be used whenever a comparison has to be made between one
10430 * hw state and multiple sw state variables.
10432 #define PIPE_CONF_CHECK_I_ALT(name, alt_name) \
10433 if ((current_config->name != pipe_config->name) && \
10434 (current_config->alt_name != pipe_config->name)) { \
10435 DRM_ERROR("mismatch in " #name " " \
10436 "(expected %i or %i, found %i)\n", \
10437 current_config->name, \
10438 current_config->alt_name, \
10439 pipe_config->name); \
10443 #define PIPE_CONF_CHECK_FLAGS(name, mask) \
10444 if ((current_config->name ^ pipe_config->name) & (mask)) { \
10445 DRM_ERROR("mismatch in " #name "(" #mask ") " \
10446 "(expected %i, found %i)\n", \
10447 current_config->name & (mask), \
10448 pipe_config->name & (mask)); \
10452 #define PIPE_CONF_CHECK_CLOCK_FUZZY(name) \
10453 if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \
10454 DRM_ERROR("mismatch in " #name " " \
10455 "(expected %i, found %i)\n", \
10456 current_config->name, \
10457 pipe_config->name); \
10461 #define PIPE_CONF_QUIRK(quirk) \
10462 ((current_config->quirks | pipe_config->quirks) & (quirk))
10464 PIPE_CONF_CHECK_I(cpu_transcoder
);
10466 PIPE_CONF_CHECK_I(has_pch_encoder
);
10467 PIPE_CONF_CHECK_I(fdi_lanes
);
10468 PIPE_CONF_CHECK_I(fdi_m_n
.gmch_m
);
10469 PIPE_CONF_CHECK_I(fdi_m_n
.gmch_n
);
10470 PIPE_CONF_CHECK_I(fdi_m_n
.link_m
);
10471 PIPE_CONF_CHECK_I(fdi_m_n
.link_n
);
10472 PIPE_CONF_CHECK_I(fdi_m_n
.tu
);
10474 PIPE_CONF_CHECK_I(has_dp_encoder
);
10476 if (INTEL_INFO(dev
)->gen
< 8) {
10477 PIPE_CONF_CHECK_I(dp_m_n
.gmch_m
);
10478 PIPE_CONF_CHECK_I(dp_m_n
.gmch_n
);
10479 PIPE_CONF_CHECK_I(dp_m_n
.link_m
);
10480 PIPE_CONF_CHECK_I(dp_m_n
.link_n
);
10481 PIPE_CONF_CHECK_I(dp_m_n
.tu
);
10483 if (current_config
->has_drrs
) {
10484 PIPE_CONF_CHECK_I(dp_m2_n2
.gmch_m
);
10485 PIPE_CONF_CHECK_I(dp_m2_n2
.gmch_n
);
10486 PIPE_CONF_CHECK_I(dp_m2_n2
.link_m
);
10487 PIPE_CONF_CHECK_I(dp_m2_n2
.link_n
);
10488 PIPE_CONF_CHECK_I(dp_m2_n2
.tu
);
10491 PIPE_CONF_CHECK_I_ALT(dp_m_n
.gmch_m
, dp_m2_n2
.gmch_m
);
10492 PIPE_CONF_CHECK_I_ALT(dp_m_n
.gmch_n
, dp_m2_n2
.gmch_n
);
10493 PIPE_CONF_CHECK_I_ALT(dp_m_n
.link_m
, dp_m2_n2
.link_m
);
10494 PIPE_CONF_CHECK_I_ALT(dp_m_n
.link_n
, dp_m2_n2
.link_n
);
10495 PIPE_CONF_CHECK_I_ALT(dp_m_n
.tu
, dp_m2_n2
.tu
);
10498 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hdisplay
);
10499 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_htotal
);
10500 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hblank_start
);
10501 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hblank_end
);
10502 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hsync_start
);
10503 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hsync_end
);
10505 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vdisplay
);
10506 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vtotal
);
10507 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vblank_start
);
10508 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vblank_end
);
10509 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vsync_start
);
10510 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vsync_end
);
10512 PIPE_CONF_CHECK_I(pixel_multiplier
);
10513 PIPE_CONF_CHECK_I(has_hdmi_sink
);
10514 if ((INTEL_INFO(dev
)->gen
< 8 && !IS_HASWELL(dev
)) ||
10515 IS_VALLEYVIEW(dev
))
10516 PIPE_CONF_CHECK_I(limited_color_range
);
10517 PIPE_CONF_CHECK_I(has_infoframe
);
10519 PIPE_CONF_CHECK_I(has_audio
);
10521 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
10522 DRM_MODE_FLAG_INTERLACE
);
10524 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS
)) {
10525 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
10526 DRM_MODE_FLAG_PHSYNC
);
10527 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
10528 DRM_MODE_FLAG_NHSYNC
);
10529 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
10530 DRM_MODE_FLAG_PVSYNC
);
10531 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
10532 DRM_MODE_FLAG_NVSYNC
);
10535 PIPE_CONF_CHECK_I(pipe_src_w
);
10536 PIPE_CONF_CHECK_I(pipe_src_h
);
10539 * FIXME: BIOS likes to set up a cloned config with lvds+external
10540 * screen. Since we don't yet re-compute the pipe config when moving
10541 * just the lvds port away to another pipe the sw tracking won't match.
10543 * Proper atomic modesets with recomputed global state will fix this.
10544 * Until then just don't check gmch state for inherited modes.
10546 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_INHERITED_MODE
)) {
10547 PIPE_CONF_CHECK_I(gmch_pfit
.control
);
10548 /* pfit ratios are autocomputed by the hw on gen4+ */
10549 if (INTEL_INFO(dev
)->gen
< 4)
10550 PIPE_CONF_CHECK_I(gmch_pfit
.pgm_ratios
);
10551 PIPE_CONF_CHECK_I(gmch_pfit
.lvds_border_bits
);
10554 PIPE_CONF_CHECK_I(pch_pfit
.enabled
);
10555 if (current_config
->pch_pfit
.enabled
) {
10556 PIPE_CONF_CHECK_I(pch_pfit
.pos
);
10557 PIPE_CONF_CHECK_I(pch_pfit
.size
);
10560 /* BDW+ don't expose a synchronous way to read the state */
10561 if (IS_HASWELL(dev
))
10562 PIPE_CONF_CHECK_I(ips_enabled
);
10564 PIPE_CONF_CHECK_I(double_wide
);
10566 PIPE_CONF_CHECK_X(ddi_pll_sel
);
10568 PIPE_CONF_CHECK_I(shared_dpll
);
10569 PIPE_CONF_CHECK_X(dpll_hw_state
.dpll
);
10570 PIPE_CONF_CHECK_X(dpll_hw_state
.dpll_md
);
10571 PIPE_CONF_CHECK_X(dpll_hw_state
.fp0
);
10572 PIPE_CONF_CHECK_X(dpll_hw_state
.fp1
);
10573 PIPE_CONF_CHECK_X(dpll_hw_state
.wrpll
);
10574 PIPE_CONF_CHECK_X(dpll_hw_state
.ctrl1
);
10575 PIPE_CONF_CHECK_X(dpll_hw_state
.cfgcr1
);
10576 PIPE_CONF_CHECK_X(dpll_hw_state
.cfgcr2
);
10578 if (IS_G4X(dev
) || INTEL_INFO(dev
)->gen
>= 5)
10579 PIPE_CONF_CHECK_I(pipe_bpp
);
10581 PIPE_CONF_CHECK_CLOCK_FUZZY(base
.adjusted_mode
.crtc_clock
);
10582 PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock
);
10584 #undef PIPE_CONF_CHECK_X
10585 #undef PIPE_CONF_CHECK_I
10586 #undef PIPE_CONF_CHECK_I_ALT
10587 #undef PIPE_CONF_CHECK_FLAGS
10588 #undef PIPE_CONF_CHECK_CLOCK_FUZZY
10589 #undef PIPE_CONF_QUIRK
10594 static void check_wm_state(struct drm_device
*dev
)
10596 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10597 struct skl_ddb_allocation hw_ddb
, *sw_ddb
;
10598 struct intel_crtc
*intel_crtc
;
10601 if (INTEL_INFO(dev
)->gen
< 9)
10604 skl_ddb_get_hw_state(dev_priv
, &hw_ddb
);
10605 sw_ddb
= &dev_priv
->wm
.skl_hw
.ddb
;
10607 for_each_intel_crtc(dev
, intel_crtc
) {
10608 struct skl_ddb_entry
*hw_entry
, *sw_entry
;
10609 const enum pipe pipe
= intel_crtc
->pipe
;
10611 if (!intel_crtc
->active
)
10615 for_each_plane(pipe
, plane
) {
10616 hw_entry
= &hw_ddb
.plane
[pipe
][plane
];
10617 sw_entry
= &sw_ddb
->plane
[pipe
][plane
];
10619 if (skl_ddb_entry_equal(hw_entry
, sw_entry
))
10622 DRM_ERROR("mismatch in DDB state pipe %c plane %d "
10623 "(expected (%u,%u), found (%u,%u))\n",
10624 pipe_name(pipe
), plane
+ 1,
10625 sw_entry
->start
, sw_entry
->end
,
10626 hw_entry
->start
, hw_entry
->end
);
10630 hw_entry
= &hw_ddb
.cursor
[pipe
];
10631 sw_entry
= &sw_ddb
->cursor
[pipe
];
10633 if (skl_ddb_entry_equal(hw_entry
, sw_entry
))
10636 DRM_ERROR("mismatch in DDB state pipe %c cursor "
10637 "(expected (%u,%u), found (%u,%u))\n",
10639 sw_entry
->start
, sw_entry
->end
,
10640 hw_entry
->start
, hw_entry
->end
);
10645 check_connector_state(struct drm_device
*dev
)
10647 struct intel_connector
*connector
;
10649 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
10651 /* This also checks the encoder/connector hw state with the
10652 * ->get_hw_state callbacks. */
10653 intel_connector_check_state(connector
);
10655 I915_STATE_WARN(&connector
->new_encoder
->base
!= connector
->base
.encoder
,
10656 "connector's staged encoder doesn't match current encoder\n");
10661 check_encoder_state(struct drm_device
*dev
)
10663 struct intel_encoder
*encoder
;
10664 struct intel_connector
*connector
;
10666 for_each_intel_encoder(dev
, encoder
) {
10667 bool enabled
= false;
10668 bool active
= false;
10669 enum pipe pipe
, tracked_pipe
;
10671 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
10672 encoder
->base
.base
.id
,
10673 encoder
->base
.name
);
10675 I915_STATE_WARN(&encoder
->new_crtc
->base
!= encoder
->base
.crtc
,
10676 "encoder's stage crtc doesn't match current crtc\n");
10677 I915_STATE_WARN(encoder
->connectors_active
&& !encoder
->base
.crtc
,
10678 "encoder's active_connectors set, but no crtc\n");
10680 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
10682 if (connector
->base
.encoder
!= &encoder
->base
)
10685 if (connector
->base
.dpms
!= DRM_MODE_DPMS_OFF
)
10689 * for MST connectors if we unplug the connector is gone
10690 * away but the encoder is still connected to a crtc
10691 * until a modeset happens in response to the hotplug.
10693 if (!enabled
&& encoder
->base
.encoder_type
== DRM_MODE_ENCODER_DPMST
)
10696 I915_STATE_WARN(!!encoder
->base
.crtc
!= enabled
,
10697 "encoder's enabled state mismatch "
10698 "(expected %i, found %i)\n",
10699 !!encoder
->base
.crtc
, enabled
);
10700 I915_STATE_WARN(active
&& !encoder
->base
.crtc
,
10701 "active encoder with no crtc\n");
10703 I915_STATE_WARN(encoder
->connectors_active
!= active
,
10704 "encoder's computed active state doesn't match tracked active state "
10705 "(expected %i, found %i)\n", active
, encoder
->connectors_active
);
10707 active
= encoder
->get_hw_state(encoder
, &pipe
);
10708 I915_STATE_WARN(active
!= encoder
->connectors_active
,
10709 "encoder's hw state doesn't match sw tracking "
10710 "(expected %i, found %i)\n",
10711 encoder
->connectors_active
, active
);
10713 if (!encoder
->base
.crtc
)
10716 tracked_pipe
= to_intel_crtc(encoder
->base
.crtc
)->pipe
;
10717 I915_STATE_WARN(active
&& pipe
!= tracked_pipe
,
10718 "active encoder's pipe doesn't match"
10719 "(expected %i, found %i)\n",
10720 tracked_pipe
, pipe
);
10726 check_crtc_state(struct drm_device
*dev
)
10728 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10729 struct intel_crtc
*crtc
;
10730 struct intel_encoder
*encoder
;
10731 struct intel_crtc_state pipe_config
;
10733 for_each_intel_crtc(dev
, crtc
) {
10734 bool enabled
= false;
10735 bool active
= false;
10737 memset(&pipe_config
, 0, sizeof(pipe_config
));
10739 DRM_DEBUG_KMS("[CRTC:%d]\n",
10740 crtc
->base
.base
.id
);
10742 I915_STATE_WARN(crtc
->active
&& !crtc
->base
.enabled
,
10743 "active crtc, but not enabled in sw tracking\n");
10745 for_each_intel_encoder(dev
, encoder
) {
10746 if (encoder
->base
.crtc
!= &crtc
->base
)
10749 if (encoder
->connectors_active
)
10753 I915_STATE_WARN(active
!= crtc
->active
,
10754 "crtc's computed active state doesn't match tracked active state "
10755 "(expected %i, found %i)\n", active
, crtc
->active
);
10756 I915_STATE_WARN(enabled
!= crtc
->base
.enabled
,
10757 "crtc's computed enabled state doesn't match tracked enabled state "
10758 "(expected %i, found %i)\n", enabled
, crtc
->base
.enabled
);
10760 active
= dev_priv
->display
.get_pipe_config(crtc
,
10763 /* hw state is inconsistent with the pipe quirk */
10764 if ((crtc
->pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
10765 (crtc
->pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
10766 active
= crtc
->active
;
10768 for_each_intel_encoder(dev
, encoder
) {
10770 if (encoder
->base
.crtc
!= &crtc
->base
)
10772 if (encoder
->get_hw_state(encoder
, &pipe
))
10773 encoder
->get_config(encoder
, &pipe_config
);
10776 I915_STATE_WARN(crtc
->active
!= active
,
10777 "crtc active state doesn't match with hw state "
10778 "(expected %i, found %i)\n", crtc
->active
, active
);
10781 !intel_pipe_config_compare(dev
, crtc
->config
, &pipe_config
)) {
10782 I915_STATE_WARN(1, "pipe state doesn't match!\n");
10783 intel_dump_pipe_config(crtc
, &pipe_config
,
10785 intel_dump_pipe_config(crtc
, crtc
->config
,
10792 check_shared_dpll_state(struct drm_device
*dev
)
10794 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10795 struct intel_crtc
*crtc
;
10796 struct intel_dpll_hw_state dpll_hw_state
;
10799 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
10800 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
10801 int enabled_crtcs
= 0, active_crtcs
= 0;
10804 memset(&dpll_hw_state
, 0, sizeof(dpll_hw_state
));
10806 DRM_DEBUG_KMS("%s\n", pll
->name
);
10808 active
= pll
->get_hw_state(dev_priv
, pll
, &dpll_hw_state
);
10810 I915_STATE_WARN(pll
->active
> hweight32(pll
->config
.crtc_mask
),
10811 "more active pll users than references: %i vs %i\n",
10812 pll
->active
, hweight32(pll
->config
.crtc_mask
));
10813 I915_STATE_WARN(pll
->active
&& !pll
->on
,
10814 "pll in active use but not on in sw tracking\n");
10815 I915_STATE_WARN(pll
->on
&& !pll
->active
,
10816 "pll in on but not on in use in sw tracking\n");
10817 I915_STATE_WARN(pll
->on
!= active
,
10818 "pll on state mismatch (expected %i, found %i)\n",
10821 for_each_intel_crtc(dev
, crtc
) {
10822 if (crtc
->base
.enabled
&& intel_crtc_to_shared_dpll(crtc
) == pll
)
10824 if (crtc
->active
&& intel_crtc_to_shared_dpll(crtc
) == pll
)
10827 I915_STATE_WARN(pll
->active
!= active_crtcs
,
10828 "pll active crtcs mismatch (expected %i, found %i)\n",
10829 pll
->active
, active_crtcs
);
10830 I915_STATE_WARN(hweight32(pll
->config
.crtc_mask
) != enabled_crtcs
,
10831 "pll enabled crtcs mismatch (expected %i, found %i)\n",
10832 hweight32(pll
->config
.crtc_mask
), enabled_crtcs
);
10834 I915_STATE_WARN(pll
->on
&& memcmp(&pll
->config
.hw_state
, &dpll_hw_state
,
10835 sizeof(dpll_hw_state
)),
10836 "pll hw state mismatch\n");
10841 intel_modeset_check_state(struct drm_device
*dev
)
10843 check_wm_state(dev
);
10844 check_connector_state(dev
);
10845 check_encoder_state(dev
);
10846 check_crtc_state(dev
);
10847 check_shared_dpll_state(dev
);
10850 void ironlake_check_encoder_dotclock(const struct intel_crtc_state
*pipe_config
,
10854 * FDI already provided one idea for the dotclock.
10855 * Yell if the encoder disagrees.
10857 WARN(!intel_fuzzy_clock_check(pipe_config
->base
.adjusted_mode
.crtc_clock
, dotclock
),
10858 "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n",
10859 pipe_config
->base
.adjusted_mode
.crtc_clock
, dotclock
);
10862 static void update_scanline_offset(struct intel_crtc
*crtc
)
10864 struct drm_device
*dev
= crtc
->base
.dev
;
10867 * The scanline counter increments at the leading edge of hsync.
10869 * On most platforms it starts counting from vtotal-1 on the
10870 * first active line. That means the scanline counter value is
10871 * always one less than what we would expect. Ie. just after
10872 * start of vblank, which also occurs at start of hsync (on the
10873 * last active line), the scanline counter will read vblank_start-1.
10875 * On gen2 the scanline counter starts counting from 1 instead
10876 * of vtotal-1, so we have to subtract one (or rather add vtotal-1
10877 * to keep the value positive), instead of adding one.
10879 * On HSW+ the behaviour of the scanline counter depends on the output
10880 * type. For DP ports it behaves like most other platforms, but on HDMI
10881 * there's an extra 1 line difference. So we need to add two instead of
10882 * one to the value.
10884 if (IS_GEN2(dev
)) {
10885 const struct drm_display_mode
*mode
= &crtc
->config
->base
.adjusted_mode
;
10888 vtotal
= mode
->crtc_vtotal
;
10889 if (mode
->flags
& DRM_MODE_FLAG_INTERLACE
)
10892 crtc
->scanline_offset
= vtotal
- 1;
10893 } else if (HAS_DDI(dev
) &&
10894 intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
)) {
10895 crtc
->scanline_offset
= 2;
10897 crtc
->scanline_offset
= 1;
10900 static struct intel_crtc_state
*
10901 intel_modeset_compute_config(struct drm_crtc
*crtc
,
10902 struct drm_display_mode
*mode
,
10903 struct drm_framebuffer
*fb
,
10904 unsigned *modeset_pipes
,
10905 unsigned *prepare_pipes
,
10906 unsigned *disable_pipes
)
10908 struct intel_crtc_state
*pipe_config
= NULL
;
10910 intel_modeset_affected_pipes(crtc
, modeset_pipes
,
10911 prepare_pipes
, disable_pipes
);
10913 if ((*modeset_pipes
) == 0)
10917 * Note this needs changes when we start tracking multiple modes
10918 * and crtcs. At that point we'll need to compute the whole config
10919 * (i.e. one pipe_config for each crtc) rather than just the one
10922 pipe_config
= intel_modeset_pipe_config(crtc
, fb
, mode
);
10923 if (IS_ERR(pipe_config
)) {
10926 intel_dump_pipe_config(to_intel_crtc(crtc
), pipe_config
,
10930 return pipe_config
;
10933 static int __intel_set_mode(struct drm_crtc
*crtc
,
10934 struct drm_display_mode
*mode
,
10935 int x
, int y
, struct drm_framebuffer
*fb
,
10936 struct intel_crtc_state
*pipe_config
,
10937 unsigned modeset_pipes
,
10938 unsigned prepare_pipes
,
10939 unsigned disable_pipes
)
10941 struct drm_device
*dev
= crtc
->dev
;
10942 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10943 struct drm_display_mode
*saved_mode
;
10944 struct intel_crtc
*intel_crtc
;
10947 saved_mode
= kmalloc(sizeof(*saved_mode
), GFP_KERNEL
);
10951 *saved_mode
= crtc
->mode
;
10954 to_intel_crtc(crtc
)->new_config
= pipe_config
;
10957 * See if the config requires any additional preparation, e.g.
10958 * to adjust global state with pipes off. We need to do this
10959 * here so we can get the modeset_pipe updated config for the new
10960 * mode set on this crtc. For other crtcs we need to use the
10961 * adjusted_mode bits in the crtc directly.
10963 if (IS_VALLEYVIEW(dev
)) {
10964 valleyview_modeset_global_pipes(dev
, &prepare_pipes
);
10966 /* may have added more to prepare_pipes than we should */
10967 prepare_pipes
&= ~disable_pipes
;
10970 if (dev_priv
->display
.crtc_compute_clock
) {
10971 unsigned clear_pipes
= modeset_pipes
| disable_pipes
;
10973 ret
= intel_shared_dpll_start_config(dev_priv
, clear_pipes
);
10977 for_each_intel_crtc_masked(dev
, modeset_pipes
, intel_crtc
) {
10978 struct intel_crtc_state
*state
= intel_crtc
->new_config
;
10979 ret
= dev_priv
->display
.crtc_compute_clock(intel_crtc
,
10982 intel_shared_dpll_abort_config(dev_priv
);
10988 for_each_intel_crtc_masked(dev
, disable_pipes
, intel_crtc
)
10989 intel_crtc_disable(&intel_crtc
->base
);
10991 for_each_intel_crtc_masked(dev
, prepare_pipes
, intel_crtc
) {
10992 if (intel_crtc
->base
.enabled
)
10993 dev_priv
->display
.crtc_disable(&intel_crtc
->base
);
10996 /* crtc->mode is already used by the ->mode_set callbacks, hence we need
10997 * to set it here already despite that we pass it down the callchain.
10999 * Note we'll need to fix this up when we start tracking multiple
11000 * pipes; here we assume a single modeset_pipe and only track the
11001 * single crtc and mode.
11003 if (modeset_pipes
) {
11004 crtc
->mode
= *mode
;
11005 /* mode_set/enable/disable functions rely on a correct pipe
11007 intel_crtc_set_state(to_intel_crtc(crtc
), pipe_config
);
11010 * Calculate and store various constants which
11011 * are later needed by vblank and swap-completion
11012 * timestamping. They are derived from true hwmode.
11014 drm_calc_timestamping_constants(crtc
,
11015 &pipe_config
->base
.adjusted_mode
);
11018 /* Only after disabling all output pipelines that will be changed can we
11019 * update the the output configuration. */
11020 intel_modeset_update_state(dev
, prepare_pipes
);
11022 modeset_update_crtc_power_domains(dev
);
11024 /* Set up the DPLL and any encoders state that needs to adjust or depend
11027 for_each_intel_crtc_masked(dev
, modeset_pipes
, intel_crtc
) {
11028 struct drm_plane
*primary
= intel_crtc
->base
.primary
;
11029 int vdisplay
, hdisplay
;
11031 drm_crtc_get_hv_timing(mode
, &hdisplay
, &vdisplay
);
11032 ret
= primary
->funcs
->update_plane(primary
, &intel_crtc
->base
,
11034 hdisplay
, vdisplay
,
11036 hdisplay
<< 16, vdisplay
<< 16);
11039 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
11040 for_each_intel_crtc_masked(dev
, prepare_pipes
, intel_crtc
) {
11041 update_scanline_offset(intel_crtc
);
11043 dev_priv
->display
.crtc_enable(&intel_crtc
->base
);
11046 /* FIXME: add subpixel order */
11048 if (ret
&& crtc
->enabled
)
11049 crtc
->mode
= *saved_mode
;
11055 static int intel_set_mode_pipes(struct drm_crtc
*crtc
,
11056 struct drm_display_mode
*mode
,
11057 int x
, int y
, struct drm_framebuffer
*fb
,
11058 struct intel_crtc_state
*pipe_config
,
11059 unsigned modeset_pipes
,
11060 unsigned prepare_pipes
,
11061 unsigned disable_pipes
)
11065 ret
= __intel_set_mode(crtc
, mode
, x
, y
, fb
, pipe_config
, modeset_pipes
,
11066 prepare_pipes
, disable_pipes
);
11069 intel_modeset_check_state(crtc
->dev
);
11074 static int intel_set_mode(struct drm_crtc
*crtc
,
11075 struct drm_display_mode
*mode
,
11076 int x
, int y
, struct drm_framebuffer
*fb
)
11078 struct intel_crtc_state
*pipe_config
;
11079 unsigned modeset_pipes
, prepare_pipes
, disable_pipes
;
11081 pipe_config
= intel_modeset_compute_config(crtc
, mode
, fb
,
11086 if (IS_ERR(pipe_config
))
11087 return PTR_ERR(pipe_config
);
11089 return intel_set_mode_pipes(crtc
, mode
, x
, y
, fb
, pipe_config
,
11090 modeset_pipes
, prepare_pipes
,
11094 void intel_crtc_restore_mode(struct drm_crtc
*crtc
)
11096 intel_set_mode(crtc
, &crtc
->mode
, crtc
->x
, crtc
->y
, crtc
->primary
->fb
);
11099 #undef for_each_intel_crtc_masked
11101 static void intel_set_config_free(struct intel_set_config
*config
)
11106 kfree(config
->save_connector_encoders
);
11107 kfree(config
->save_encoder_crtcs
);
11108 kfree(config
->save_crtc_enabled
);
11112 static int intel_set_config_save_state(struct drm_device
*dev
,
11113 struct intel_set_config
*config
)
11115 struct drm_crtc
*crtc
;
11116 struct drm_encoder
*encoder
;
11117 struct drm_connector
*connector
;
11120 config
->save_crtc_enabled
=
11121 kcalloc(dev
->mode_config
.num_crtc
,
11122 sizeof(bool), GFP_KERNEL
);
11123 if (!config
->save_crtc_enabled
)
11126 config
->save_encoder_crtcs
=
11127 kcalloc(dev
->mode_config
.num_encoder
,
11128 sizeof(struct drm_crtc
*), GFP_KERNEL
);
11129 if (!config
->save_encoder_crtcs
)
11132 config
->save_connector_encoders
=
11133 kcalloc(dev
->mode_config
.num_connector
,
11134 sizeof(struct drm_encoder
*), GFP_KERNEL
);
11135 if (!config
->save_connector_encoders
)
11138 /* Copy data. Note that driver private data is not affected.
11139 * Should anything bad happen only the expected state is
11140 * restored, not the drivers personal bookkeeping.
11143 for_each_crtc(dev
, crtc
) {
11144 config
->save_crtc_enabled
[count
++] = crtc
->enabled
;
11148 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
) {
11149 config
->save_encoder_crtcs
[count
++] = encoder
->crtc
;
11153 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
11154 config
->save_connector_encoders
[count
++] = connector
->encoder
;
11160 static void intel_set_config_restore_state(struct drm_device
*dev
,
11161 struct intel_set_config
*config
)
11163 struct intel_crtc
*crtc
;
11164 struct intel_encoder
*encoder
;
11165 struct intel_connector
*connector
;
11169 for_each_intel_crtc(dev
, crtc
) {
11170 crtc
->new_enabled
= config
->save_crtc_enabled
[count
++];
11172 if (crtc
->new_enabled
)
11173 crtc
->new_config
= crtc
->config
;
11175 crtc
->new_config
= NULL
;
11179 for_each_intel_encoder(dev
, encoder
) {
11180 encoder
->new_crtc
=
11181 to_intel_crtc(config
->save_encoder_crtcs
[count
++]);
11185 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, base
.head
) {
11186 connector
->new_encoder
=
11187 to_intel_encoder(config
->save_connector_encoders
[count
++]);
11192 is_crtc_connector_off(struct drm_mode_set
*set
)
11196 if (set
->num_connectors
== 0)
11199 if (WARN_ON(set
->connectors
== NULL
))
11202 for (i
= 0; i
< set
->num_connectors
; i
++)
11203 if (set
->connectors
[i
]->encoder
&&
11204 set
->connectors
[i
]->encoder
->crtc
== set
->crtc
&&
11205 set
->connectors
[i
]->dpms
!= DRM_MODE_DPMS_ON
)
11212 intel_set_config_compute_mode_changes(struct drm_mode_set
*set
,
11213 struct intel_set_config
*config
)
11216 /* We should be able to check here if the fb has the same properties
11217 * and then just flip_or_move it */
11218 if (is_crtc_connector_off(set
)) {
11219 config
->mode_changed
= true;
11220 } else if (set
->crtc
->primary
->fb
!= set
->fb
) {
11222 * If we have no fb, we can only flip as long as the crtc is
11223 * active, otherwise we need a full mode set. The crtc may
11224 * be active if we've only disabled the primary plane, or
11225 * in fastboot situations.
11227 if (set
->crtc
->primary
->fb
== NULL
) {
11228 struct intel_crtc
*intel_crtc
=
11229 to_intel_crtc(set
->crtc
);
11231 if (intel_crtc
->active
) {
11232 DRM_DEBUG_KMS("crtc has no fb, will flip\n");
11233 config
->fb_changed
= true;
11235 DRM_DEBUG_KMS("inactive crtc, full mode set\n");
11236 config
->mode_changed
= true;
11238 } else if (set
->fb
== NULL
) {
11239 config
->mode_changed
= true;
11240 } else if (set
->fb
->pixel_format
!=
11241 set
->crtc
->primary
->fb
->pixel_format
) {
11242 config
->mode_changed
= true;
11244 config
->fb_changed
= true;
11248 if (set
->fb
&& (set
->x
!= set
->crtc
->x
|| set
->y
!= set
->crtc
->y
))
11249 config
->fb_changed
= true;
11251 if (set
->mode
&& !drm_mode_equal(set
->mode
, &set
->crtc
->mode
)) {
11252 DRM_DEBUG_KMS("modes are different, full mode set\n");
11253 drm_mode_debug_printmodeline(&set
->crtc
->mode
);
11254 drm_mode_debug_printmodeline(set
->mode
);
11255 config
->mode_changed
= true;
11258 DRM_DEBUG_KMS("computed changes for [CRTC:%d], mode_changed=%d, fb_changed=%d\n",
11259 set
->crtc
->base
.id
, config
->mode_changed
, config
->fb_changed
);
11263 intel_modeset_stage_output_state(struct drm_device
*dev
,
11264 struct drm_mode_set
*set
,
11265 struct intel_set_config
*config
)
11267 struct intel_connector
*connector
;
11268 struct intel_encoder
*encoder
;
11269 struct intel_crtc
*crtc
;
11272 /* The upper layers ensure that we either disable a crtc or have a list
11273 * of connectors. For paranoia, double-check this. */
11274 WARN_ON(!set
->fb
&& (set
->num_connectors
!= 0));
11275 WARN_ON(set
->fb
&& (set
->num_connectors
== 0));
11277 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
11279 /* Otherwise traverse passed in connector list and get encoders
11281 for (ro
= 0; ro
< set
->num_connectors
; ro
++) {
11282 if (set
->connectors
[ro
] == &connector
->base
) {
11283 connector
->new_encoder
= intel_find_encoder(connector
, to_intel_crtc(set
->crtc
)->pipe
);
11288 /* If we disable the crtc, disable all its connectors. Also, if
11289 * the connector is on the changing crtc but not on the new
11290 * connector list, disable it. */
11291 if ((!set
->fb
|| ro
== set
->num_connectors
) &&
11292 connector
->base
.encoder
&&
11293 connector
->base
.encoder
->crtc
== set
->crtc
) {
11294 connector
->new_encoder
= NULL
;
11296 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
11297 connector
->base
.base
.id
,
11298 connector
->base
.name
);
11302 if (&connector
->new_encoder
->base
!= connector
->base
.encoder
) {
11303 DRM_DEBUG_KMS("encoder changed, full mode switch\n");
11304 config
->mode_changed
= true;
11307 /* connector->new_encoder is now updated for all connectors. */
11309 /* Update crtc of enabled connectors. */
11310 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
11312 struct drm_crtc
*new_crtc
;
11314 if (!connector
->new_encoder
)
11317 new_crtc
= connector
->new_encoder
->base
.crtc
;
11319 for (ro
= 0; ro
< set
->num_connectors
; ro
++) {
11320 if (set
->connectors
[ro
] == &connector
->base
)
11321 new_crtc
= set
->crtc
;
11324 /* Make sure the new CRTC will work with the encoder */
11325 if (!drm_encoder_crtc_ok(&connector
->new_encoder
->base
,
11329 connector
->new_encoder
->new_crtc
= to_intel_crtc(new_crtc
);
11331 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
11332 connector
->base
.base
.id
,
11333 connector
->base
.name
,
11334 new_crtc
->base
.id
);
11337 /* Check for any encoders that needs to be disabled. */
11338 for_each_intel_encoder(dev
, encoder
) {
11339 int num_connectors
= 0;
11340 list_for_each_entry(connector
,
11341 &dev
->mode_config
.connector_list
,
11343 if (connector
->new_encoder
== encoder
) {
11344 WARN_ON(!connector
->new_encoder
->new_crtc
);
11349 if (num_connectors
== 0)
11350 encoder
->new_crtc
= NULL
;
11351 else if (num_connectors
> 1)
11354 /* Only now check for crtc changes so we don't miss encoders
11355 * that will be disabled. */
11356 if (&encoder
->new_crtc
->base
!= encoder
->base
.crtc
) {
11357 DRM_DEBUG_KMS("crtc changed, full mode switch\n");
11358 config
->mode_changed
= true;
11361 /* Now we've also updated encoder->new_crtc for all encoders. */
11362 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
11364 if (connector
->new_encoder
)
11365 if (connector
->new_encoder
!= connector
->encoder
)
11366 connector
->encoder
= connector
->new_encoder
;
11368 for_each_intel_crtc(dev
, crtc
) {
11369 crtc
->new_enabled
= false;
11371 for_each_intel_encoder(dev
, encoder
) {
11372 if (encoder
->new_crtc
== crtc
) {
11373 crtc
->new_enabled
= true;
11378 if (crtc
->new_enabled
!= crtc
->base
.enabled
) {
11379 DRM_DEBUG_KMS("crtc %sabled, full mode switch\n",
11380 crtc
->new_enabled
? "en" : "dis");
11381 config
->mode_changed
= true;
11384 if (crtc
->new_enabled
)
11385 crtc
->new_config
= crtc
->config
;
11387 crtc
->new_config
= NULL
;
11393 static void disable_crtc_nofb(struct intel_crtc
*crtc
)
11395 struct drm_device
*dev
= crtc
->base
.dev
;
11396 struct intel_encoder
*encoder
;
11397 struct intel_connector
*connector
;
11399 DRM_DEBUG_KMS("Trying to restore without FB -> disabling pipe %c\n",
11400 pipe_name(crtc
->pipe
));
11402 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, base
.head
) {
11403 if (connector
->new_encoder
&&
11404 connector
->new_encoder
->new_crtc
== crtc
)
11405 connector
->new_encoder
= NULL
;
11408 for_each_intel_encoder(dev
, encoder
) {
11409 if (encoder
->new_crtc
== crtc
)
11410 encoder
->new_crtc
= NULL
;
11413 crtc
->new_enabled
= false;
11414 crtc
->new_config
= NULL
;
11417 static int intel_crtc_set_config(struct drm_mode_set
*set
)
11419 struct drm_device
*dev
;
11420 struct drm_mode_set save_set
;
11421 struct intel_set_config
*config
;
11422 struct intel_crtc_state
*pipe_config
;
11423 unsigned modeset_pipes
, prepare_pipes
, disable_pipes
;
11427 BUG_ON(!set
->crtc
);
11428 BUG_ON(!set
->crtc
->helper_private
);
11430 /* Enforce sane interface api - has been abused by the fb helper. */
11431 BUG_ON(!set
->mode
&& set
->fb
);
11432 BUG_ON(set
->fb
&& set
->num_connectors
== 0);
11435 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
11436 set
->crtc
->base
.id
, set
->fb
->base
.id
,
11437 (int)set
->num_connectors
, set
->x
, set
->y
);
11439 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set
->crtc
->base
.id
);
11442 dev
= set
->crtc
->dev
;
11445 config
= kzalloc(sizeof(*config
), GFP_KERNEL
);
11449 ret
= intel_set_config_save_state(dev
, config
);
11453 save_set
.crtc
= set
->crtc
;
11454 save_set
.mode
= &set
->crtc
->mode
;
11455 save_set
.x
= set
->crtc
->x
;
11456 save_set
.y
= set
->crtc
->y
;
11457 save_set
.fb
= set
->crtc
->primary
->fb
;
11459 /* Compute whether we need a full modeset, only an fb base update or no
11460 * change at all. In the future we might also check whether only the
11461 * mode changed, e.g. for LVDS where we only change the panel fitter in
11463 intel_set_config_compute_mode_changes(set
, config
);
11465 ret
= intel_modeset_stage_output_state(dev
, set
, config
);
11469 pipe_config
= intel_modeset_compute_config(set
->crtc
, set
->mode
,
11474 if (IS_ERR(pipe_config
)) {
11475 ret
= PTR_ERR(pipe_config
);
11477 } else if (pipe_config
) {
11478 if (pipe_config
->has_audio
!=
11479 to_intel_crtc(set
->crtc
)->config
->has_audio
)
11480 config
->mode_changed
= true;
11483 * Note we have an issue here with infoframes: current code
11484 * only updates them on the full mode set path per hw
11485 * requirements. So here we should be checking for any
11486 * required changes and forcing a mode set.
11490 /* set_mode will free it in the mode_changed case */
11491 if (!config
->mode_changed
)
11492 kfree(pipe_config
);
11494 intel_update_pipe_size(to_intel_crtc(set
->crtc
));
11496 if (config
->mode_changed
) {
11497 ret
= intel_set_mode_pipes(set
->crtc
, set
->mode
,
11498 set
->x
, set
->y
, set
->fb
, pipe_config
,
11499 modeset_pipes
, prepare_pipes
,
11501 } else if (config
->fb_changed
) {
11502 struct intel_crtc
*intel_crtc
= to_intel_crtc(set
->crtc
);
11503 struct drm_plane
*primary
= set
->crtc
->primary
;
11504 int vdisplay
, hdisplay
;
11506 drm_crtc_get_hv_timing(set
->mode
, &hdisplay
, &vdisplay
);
11507 ret
= primary
->funcs
->update_plane(primary
, set
->crtc
, set
->fb
,
11508 0, 0, hdisplay
, vdisplay
,
11509 set
->x
<< 16, set
->y
<< 16,
11510 hdisplay
<< 16, vdisplay
<< 16);
11513 * We need to make sure the primary plane is re-enabled if it
11514 * has previously been turned off.
11516 if (!intel_crtc
->primary_enabled
&& ret
== 0) {
11517 WARN_ON(!intel_crtc
->active
);
11518 intel_enable_primary_hw_plane(set
->crtc
->primary
, set
->crtc
);
11522 * In the fastboot case this may be our only check of the
11523 * state after boot. It would be better to only do it on
11524 * the first update, but we don't have a nice way of doing that
11525 * (and really, set_config isn't used much for high freq page
11526 * flipping, so increasing its cost here shouldn't be a big
11529 if (i915
.fastboot
&& ret
== 0)
11530 intel_modeset_check_state(set
->crtc
->dev
);
11534 DRM_DEBUG_KMS("failed to set mode on [CRTC:%d], err = %d\n",
11535 set
->crtc
->base
.id
, ret
);
11537 intel_set_config_restore_state(dev
, config
);
11540 * HACK: if the pipe was on, but we didn't have a framebuffer,
11541 * force the pipe off to avoid oopsing in the modeset code
11542 * due to fb==NULL. This should only happen during boot since
11543 * we don't yet reconstruct the FB from the hardware state.
11545 if (to_intel_crtc(save_set
.crtc
)->new_enabled
&& !save_set
.fb
)
11546 disable_crtc_nofb(to_intel_crtc(save_set
.crtc
));
11548 /* Try to restore the config */
11549 if (config
->mode_changed
&&
11550 intel_set_mode(save_set
.crtc
, save_set
.mode
,
11551 save_set
.x
, save_set
.y
, save_set
.fb
))
11552 DRM_ERROR("failed to restore config after modeset failure\n");
11556 intel_set_config_free(config
);
11560 static const struct drm_crtc_funcs intel_crtc_funcs
= {
11561 .gamma_set
= intel_crtc_gamma_set
,
11562 .set_config
= intel_crtc_set_config
,
11563 .destroy
= intel_crtc_destroy
,
11564 .page_flip
= intel_crtc_page_flip
,
11567 static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private
*dev_priv
,
11568 struct intel_shared_dpll
*pll
,
11569 struct intel_dpll_hw_state
*hw_state
)
11573 if (!intel_display_power_is_enabled(dev_priv
, POWER_DOMAIN_PLLS
))
11576 val
= I915_READ(PCH_DPLL(pll
->id
));
11577 hw_state
->dpll
= val
;
11578 hw_state
->fp0
= I915_READ(PCH_FP0(pll
->id
));
11579 hw_state
->fp1
= I915_READ(PCH_FP1(pll
->id
));
11581 return val
& DPLL_VCO_ENABLE
;
11584 static void ibx_pch_dpll_mode_set(struct drm_i915_private
*dev_priv
,
11585 struct intel_shared_dpll
*pll
)
11587 I915_WRITE(PCH_FP0(pll
->id
), pll
->config
.hw_state
.fp0
);
11588 I915_WRITE(PCH_FP1(pll
->id
), pll
->config
.hw_state
.fp1
);
11591 static void ibx_pch_dpll_enable(struct drm_i915_private
*dev_priv
,
11592 struct intel_shared_dpll
*pll
)
11594 /* PCH refclock must be enabled first */
11595 ibx_assert_pch_refclk_enabled(dev_priv
);
11597 I915_WRITE(PCH_DPLL(pll
->id
), pll
->config
.hw_state
.dpll
);
11599 /* Wait for the clocks to stabilize. */
11600 POSTING_READ(PCH_DPLL(pll
->id
));
11603 /* The pixel multiplier can only be updated once the
11604 * DPLL is enabled and the clocks are stable.
11606 * So write it again.
11608 I915_WRITE(PCH_DPLL(pll
->id
), pll
->config
.hw_state
.dpll
);
11609 POSTING_READ(PCH_DPLL(pll
->id
));
11613 static void ibx_pch_dpll_disable(struct drm_i915_private
*dev_priv
,
11614 struct intel_shared_dpll
*pll
)
11616 struct drm_device
*dev
= dev_priv
->dev
;
11617 struct intel_crtc
*crtc
;
11619 /* Make sure no transcoder isn't still depending on us. */
11620 for_each_intel_crtc(dev
, crtc
) {
11621 if (intel_crtc_to_shared_dpll(crtc
) == pll
)
11622 assert_pch_transcoder_disabled(dev_priv
, crtc
->pipe
);
11625 I915_WRITE(PCH_DPLL(pll
->id
), 0);
11626 POSTING_READ(PCH_DPLL(pll
->id
));
11630 static char *ibx_pch_dpll_names
[] = {
11635 static void ibx_pch_dpll_init(struct drm_device
*dev
)
11637 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11640 dev_priv
->num_shared_dpll
= 2;
11642 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
11643 dev_priv
->shared_dplls
[i
].id
= i
;
11644 dev_priv
->shared_dplls
[i
].name
= ibx_pch_dpll_names
[i
];
11645 dev_priv
->shared_dplls
[i
].mode_set
= ibx_pch_dpll_mode_set
;
11646 dev_priv
->shared_dplls
[i
].enable
= ibx_pch_dpll_enable
;
11647 dev_priv
->shared_dplls
[i
].disable
= ibx_pch_dpll_disable
;
11648 dev_priv
->shared_dplls
[i
].get_hw_state
=
11649 ibx_pch_dpll_get_hw_state
;
11653 static void intel_shared_dpll_init(struct drm_device
*dev
)
11655 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11658 intel_ddi_pll_init(dev
);
11659 else if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
11660 ibx_pch_dpll_init(dev
);
11662 dev_priv
->num_shared_dpll
= 0;
11664 BUG_ON(dev_priv
->num_shared_dpll
> I915_NUM_PLLS
);
11668 * intel_prepare_plane_fb - Prepare fb for usage on plane
11669 * @plane: drm plane to prepare for
11670 * @fb: framebuffer to prepare for presentation
11672 * Prepares a framebuffer for usage on a display plane. Generally this
11673 * involves pinning the underlying object and updating the frontbuffer tracking
11674 * bits. Some older platforms need special physical address handling for
11677 * Returns 0 on success, negative error code on failure.
11680 intel_prepare_plane_fb(struct drm_plane
*plane
,
11681 struct drm_framebuffer
*fb
)
11683 struct drm_device
*dev
= plane
->dev
;
11684 struct intel_plane
*intel_plane
= to_intel_plane(plane
);
11685 enum pipe pipe
= intel_plane
->pipe
;
11686 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
11687 struct drm_i915_gem_object
*old_obj
= intel_fb_obj(plane
->fb
);
11688 unsigned frontbuffer_bits
= 0;
11694 switch (plane
->type
) {
11695 case DRM_PLANE_TYPE_PRIMARY
:
11696 frontbuffer_bits
= INTEL_FRONTBUFFER_PRIMARY(pipe
);
11698 case DRM_PLANE_TYPE_CURSOR
:
11699 frontbuffer_bits
= INTEL_FRONTBUFFER_CURSOR(pipe
);
11701 case DRM_PLANE_TYPE_OVERLAY
:
11702 frontbuffer_bits
= INTEL_FRONTBUFFER_SPRITE(pipe
);
11706 mutex_lock(&dev
->struct_mutex
);
11708 if (plane
->type
== DRM_PLANE_TYPE_CURSOR
&&
11709 INTEL_INFO(dev
)->cursor_needs_physical
) {
11710 int align
= IS_I830(dev
) ? 16 * 1024 : 256;
11711 ret
= i915_gem_object_attach_phys(obj
, align
);
11713 DRM_DEBUG_KMS("failed to attach phys object\n");
11715 ret
= intel_pin_and_fence_fb_obj(plane
, fb
, NULL
);
11719 i915_gem_track_fb(old_obj
, obj
, frontbuffer_bits
);
11721 mutex_unlock(&dev
->struct_mutex
);
11727 * intel_cleanup_plane_fb - Cleans up an fb after plane use
11728 * @plane: drm plane to clean up for
11729 * @fb: old framebuffer that was on plane
11731 * Cleans up a framebuffer that has just been removed from a plane.
11734 intel_cleanup_plane_fb(struct drm_plane
*plane
,
11735 struct drm_framebuffer
*fb
)
11737 struct drm_device
*dev
= plane
->dev
;
11738 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
11743 if (plane
->type
!= DRM_PLANE_TYPE_CURSOR
||
11744 !INTEL_INFO(dev
)->cursor_needs_physical
) {
11745 mutex_lock(&dev
->struct_mutex
);
11746 intel_unpin_fb_obj(obj
);
11747 mutex_unlock(&dev
->struct_mutex
);
11752 intel_check_primary_plane(struct drm_plane
*plane
,
11753 struct intel_plane_state
*state
)
11755 struct drm_device
*dev
= plane
->dev
;
11756 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11757 struct drm_crtc
*crtc
= state
->base
.crtc
;
11758 struct intel_crtc
*intel_crtc
;
11759 struct intel_plane
*intel_plane
= to_intel_plane(plane
);
11760 struct drm_framebuffer
*fb
= state
->base
.fb
;
11761 struct drm_rect
*dest
= &state
->dst
;
11762 struct drm_rect
*src
= &state
->src
;
11763 const struct drm_rect
*clip
= &state
->clip
;
11766 crtc
= crtc
? crtc
: plane
->crtc
;
11767 intel_crtc
= to_intel_crtc(crtc
);
11769 ret
= drm_plane_helper_check_update(plane
, crtc
, fb
,
11771 DRM_PLANE_HELPER_NO_SCALING
,
11772 DRM_PLANE_HELPER_NO_SCALING
,
11773 false, true, &state
->visible
);
11777 if (intel_crtc
->active
) {
11778 intel_crtc
->atomic
.wait_for_flips
= true;
11781 * FBC does not work on some platforms for rotated
11782 * planes, so disable it when rotation is not 0 and
11783 * update it when rotation is set back to 0.
11785 * FIXME: This is redundant with the fbc update done in
11786 * the primary plane enable function except that that
11787 * one is done too late. We eventually need to unify
11790 if (intel_crtc
->primary_enabled
&&
11791 INTEL_INFO(dev
)->gen
<= 4 && !IS_G4X(dev
) &&
11792 dev_priv
->fbc
.plane
== intel_crtc
->plane
&&
11793 intel_plane
->rotation
!= BIT(DRM_ROTATE_0
)) {
11794 intel_crtc
->atomic
.disable_fbc
= true;
11797 if (state
->visible
) {
11799 * BDW signals flip done immediately if the plane
11800 * is disabled, even if the plane enable is already
11801 * armed to occur at the next vblank :(
11803 if (IS_BROADWELL(dev
) && !intel_crtc
->primary_enabled
)
11804 intel_crtc
->atomic
.wait_vblank
= true;
11807 intel_crtc
->atomic
.fb_bits
|=
11808 INTEL_FRONTBUFFER_PRIMARY(intel_crtc
->pipe
);
11810 intel_crtc
->atomic
.update_fbc
= true;
11817 intel_commit_primary_plane(struct drm_plane
*plane
,
11818 struct intel_plane_state
*state
)
11820 struct drm_crtc
*crtc
= state
->base
.crtc
;
11821 struct drm_framebuffer
*fb
= state
->base
.fb
;
11822 struct drm_device
*dev
= plane
->dev
;
11823 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11824 struct intel_crtc
*intel_crtc
;
11825 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
11826 struct intel_plane
*intel_plane
= to_intel_plane(plane
);
11827 struct drm_rect
*src
= &state
->src
;
11829 crtc
= crtc
? crtc
: plane
->crtc
;
11830 intel_crtc
= to_intel_crtc(crtc
);
11833 crtc
->x
= src
->x1
>> 16;
11834 crtc
->y
= src
->y1
>> 16;
11836 intel_plane
->obj
= obj
;
11838 if (intel_crtc
->active
) {
11839 if (state
->visible
) {
11840 /* FIXME: kill this fastboot hack */
11841 intel_update_pipe_size(intel_crtc
);
11843 intel_crtc
->primary_enabled
= true;
11845 dev_priv
->display
.update_primary_plane(crtc
, plane
->fb
,
11849 * If clipping results in a non-visible primary plane,
11850 * we'll disable the primary plane. Note that this is
11851 * a bit different than what happens if userspace
11852 * explicitly disables the plane by passing fb=0
11853 * because plane->fb still gets set and pinned.
11855 intel_disable_primary_hw_plane(plane
, crtc
);
11860 static void intel_begin_crtc_commit(struct drm_crtc
*crtc
)
11862 struct drm_device
*dev
= crtc
->dev
;
11863 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11864 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11865 struct intel_plane
*intel_plane
;
11866 struct drm_plane
*p
;
11867 unsigned fb_bits
= 0;
11869 /* Track fb's for any planes being disabled */
11870 list_for_each_entry(p
, &dev
->mode_config
.plane_list
, head
) {
11871 intel_plane
= to_intel_plane(p
);
11873 if (intel_crtc
->atomic
.disabled_planes
&
11874 (1 << drm_plane_index(p
))) {
11876 case DRM_PLANE_TYPE_PRIMARY
:
11877 fb_bits
= INTEL_FRONTBUFFER_PRIMARY(intel_plane
->pipe
);
11879 case DRM_PLANE_TYPE_CURSOR
:
11880 fb_bits
= INTEL_FRONTBUFFER_CURSOR(intel_plane
->pipe
);
11882 case DRM_PLANE_TYPE_OVERLAY
:
11883 fb_bits
= INTEL_FRONTBUFFER_SPRITE(intel_plane
->pipe
);
11887 mutex_lock(&dev
->struct_mutex
);
11888 i915_gem_track_fb(intel_fb_obj(p
->fb
), NULL
, fb_bits
);
11889 mutex_unlock(&dev
->struct_mutex
);
11893 if (intel_crtc
->atomic
.wait_for_flips
)
11894 intel_crtc_wait_for_pending_flips(crtc
);
11896 if (intel_crtc
->atomic
.disable_fbc
)
11897 intel_fbc_disable(dev
);
11899 if (intel_crtc
->atomic
.pre_disable_primary
)
11900 intel_pre_disable_primary(crtc
);
11902 if (intel_crtc
->atomic
.update_wm
)
11903 intel_update_watermarks(crtc
);
11905 intel_runtime_pm_get(dev_priv
);
11907 /* Perform vblank evasion around commit operation */
11908 if (intel_crtc
->active
)
11909 intel_crtc
->atomic
.evade
=
11910 intel_pipe_update_start(intel_crtc
,
11911 &intel_crtc
->atomic
.start_vbl_count
);
11914 static void intel_finish_crtc_commit(struct drm_crtc
*crtc
)
11916 struct drm_device
*dev
= crtc
->dev
;
11917 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11918 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
11919 struct drm_plane
*p
;
11921 if (intel_crtc
->atomic
.evade
)
11922 intel_pipe_update_end(intel_crtc
,
11923 intel_crtc
->atomic
.start_vbl_count
);
11925 intel_runtime_pm_put(dev_priv
);
11927 if (intel_crtc
->atomic
.wait_vblank
)
11928 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
11930 intel_frontbuffer_flip(dev
, intel_crtc
->atomic
.fb_bits
);
11932 if (intel_crtc
->atomic
.update_fbc
) {
11933 mutex_lock(&dev
->struct_mutex
);
11934 intel_fbc_update(dev
);
11935 mutex_unlock(&dev
->struct_mutex
);
11938 if (intel_crtc
->atomic
.post_enable_primary
)
11939 intel_post_enable_primary(crtc
);
11941 drm_for_each_legacy_plane(p
, &dev
->mode_config
.plane_list
)
11942 if (intel_crtc
->atomic
.update_sprite_watermarks
& drm_plane_index(p
))
11943 intel_update_sprite_watermarks(p
, crtc
, 0, 0, 0,
11946 memset(&intel_crtc
->atomic
, 0, sizeof(intel_crtc
->atomic
));
11950 * intel_plane_destroy - destroy a plane
11951 * @plane: plane to destroy
11953 * Common destruction function for all types of planes (primary, cursor,
11956 void intel_plane_destroy(struct drm_plane
*plane
)
11958 struct intel_plane
*intel_plane
= to_intel_plane(plane
);
11959 drm_plane_cleanup(plane
);
11960 kfree(intel_plane
);
11963 static const struct drm_plane_funcs intel_primary_plane_funcs
= {
11964 .update_plane
= drm_plane_helper_update
,
11965 .disable_plane
= drm_plane_helper_disable
,
11966 .destroy
= intel_plane_destroy
,
11967 .set_property
= intel_plane_set_property
,
11968 .atomic_duplicate_state
= intel_plane_duplicate_state
,
11969 .atomic_destroy_state
= intel_plane_destroy_state
,
11973 static struct drm_plane
*intel_primary_plane_create(struct drm_device
*dev
,
11976 struct intel_plane
*primary
;
11977 const uint32_t *intel_primary_formats
;
11980 primary
= kzalloc(sizeof(*primary
), GFP_KERNEL
);
11981 if (primary
== NULL
)
11984 primary
->base
.state
= intel_plane_duplicate_state(&primary
->base
);
11985 if (primary
->base
.state
== NULL
) {
11990 primary
->can_scale
= false;
11991 primary
->max_downscale
= 1;
11992 primary
->pipe
= pipe
;
11993 primary
->plane
= pipe
;
11994 primary
->rotation
= BIT(DRM_ROTATE_0
);
11995 primary
->check_plane
= intel_check_primary_plane
;
11996 primary
->commit_plane
= intel_commit_primary_plane
;
11997 if (HAS_FBC(dev
) && INTEL_INFO(dev
)->gen
< 4)
11998 primary
->plane
= !pipe
;
12000 if (INTEL_INFO(dev
)->gen
<= 3) {
12001 intel_primary_formats
= intel_primary_formats_gen2
;
12002 num_formats
= ARRAY_SIZE(intel_primary_formats_gen2
);
12004 intel_primary_formats
= intel_primary_formats_gen4
;
12005 num_formats
= ARRAY_SIZE(intel_primary_formats_gen4
);
12008 drm_universal_plane_init(dev
, &primary
->base
, 0,
12009 &intel_primary_plane_funcs
,
12010 intel_primary_formats
, num_formats
,
12011 DRM_PLANE_TYPE_PRIMARY
);
12013 if (INTEL_INFO(dev
)->gen
>= 4) {
12014 if (!dev
->mode_config
.rotation_property
)
12015 dev
->mode_config
.rotation_property
=
12016 drm_mode_create_rotation_property(dev
,
12017 BIT(DRM_ROTATE_0
) |
12018 BIT(DRM_ROTATE_180
));
12019 if (dev
->mode_config
.rotation_property
)
12020 drm_object_attach_property(&primary
->base
.base
,
12021 dev
->mode_config
.rotation_property
,
12022 primary
->rotation
);
12025 drm_plane_helper_add(&primary
->base
, &intel_plane_helper_funcs
);
12027 return &primary
->base
;
12031 intel_check_cursor_plane(struct drm_plane
*plane
,
12032 struct intel_plane_state
*state
)
12034 struct drm_crtc
*crtc
= state
->base
.crtc
;
12035 struct drm_device
*dev
= plane
->dev
;
12036 struct drm_framebuffer
*fb
= state
->base
.fb
;
12037 struct drm_rect
*dest
= &state
->dst
;
12038 struct drm_rect
*src
= &state
->src
;
12039 const struct drm_rect
*clip
= &state
->clip
;
12040 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
12041 struct intel_crtc
*intel_crtc
;
12045 crtc
= crtc
? crtc
: plane
->crtc
;
12046 intel_crtc
= to_intel_crtc(crtc
);
12048 ret
= drm_plane_helper_check_update(plane
, crtc
, fb
,
12050 DRM_PLANE_HELPER_NO_SCALING
,
12051 DRM_PLANE_HELPER_NO_SCALING
,
12052 true, true, &state
->visible
);
12057 /* if we want to turn off the cursor ignore width and height */
12061 /* Check for which cursor types we support */
12062 if (!cursor_size_ok(dev
, state
->base
.crtc_w
, state
->base
.crtc_h
)) {
12063 DRM_DEBUG("Cursor dimension %dx%d not supported\n",
12064 state
->base
.crtc_w
, state
->base
.crtc_h
);
12068 stride
= roundup_pow_of_two(state
->base
.crtc_w
) * 4;
12069 if (obj
->base
.size
< stride
* state
->base
.crtc_h
) {
12070 DRM_DEBUG_KMS("buffer is too small\n");
12074 if (fb
== crtc
->cursor
->fb
)
12077 /* we only need to pin inside GTT if cursor is non-phy */
12078 mutex_lock(&dev
->struct_mutex
);
12079 if (!INTEL_INFO(dev
)->cursor_needs_physical
&& obj
->tiling_mode
) {
12080 DRM_DEBUG_KMS("cursor cannot be tiled\n");
12083 mutex_unlock(&dev
->struct_mutex
);
12086 if (intel_crtc
->active
) {
12087 if (intel_crtc
->cursor_width
!= state
->base
.crtc_w
)
12088 intel_crtc
->atomic
.update_wm
= true;
12090 intel_crtc
->atomic
.fb_bits
|=
12091 INTEL_FRONTBUFFER_CURSOR(intel_crtc
->pipe
);
12098 intel_commit_cursor_plane(struct drm_plane
*plane
,
12099 struct intel_plane_state
*state
)
12101 struct drm_crtc
*crtc
= state
->base
.crtc
;
12102 struct drm_device
*dev
= plane
->dev
;
12103 struct intel_crtc
*intel_crtc
;
12104 struct intel_plane
*intel_plane
= to_intel_plane(plane
);
12105 struct drm_i915_gem_object
*obj
= intel_fb_obj(state
->base
.fb
);
12108 crtc
= crtc
? crtc
: plane
->crtc
;
12109 intel_crtc
= to_intel_crtc(crtc
);
12111 plane
->fb
= state
->base
.fb
;
12112 crtc
->cursor_x
= state
->base
.crtc_x
;
12113 crtc
->cursor_y
= state
->base
.crtc_y
;
12115 intel_plane
->obj
= obj
;
12117 if (intel_crtc
->cursor_bo
== obj
)
12122 else if (!INTEL_INFO(dev
)->cursor_needs_physical
)
12123 addr
= i915_gem_obj_ggtt_offset(obj
);
12125 addr
= obj
->phys_handle
->busaddr
;
12127 intel_crtc
->cursor_addr
= addr
;
12128 intel_crtc
->cursor_bo
= obj
;
12130 intel_crtc
->cursor_width
= state
->base
.crtc_w
;
12131 intel_crtc
->cursor_height
= state
->base
.crtc_h
;
12133 if (intel_crtc
->active
)
12134 intel_crtc_update_cursor(crtc
, state
->visible
);
12137 static const struct drm_plane_funcs intel_cursor_plane_funcs
= {
12138 .update_plane
= drm_plane_helper_update
,
12139 .disable_plane
= drm_plane_helper_disable
,
12140 .destroy
= intel_plane_destroy
,
12141 .set_property
= intel_plane_set_property
,
12142 .atomic_duplicate_state
= intel_plane_duplicate_state
,
12143 .atomic_destroy_state
= intel_plane_destroy_state
,
12146 static struct drm_plane
*intel_cursor_plane_create(struct drm_device
*dev
,
12149 struct intel_plane
*cursor
;
12151 cursor
= kzalloc(sizeof(*cursor
), GFP_KERNEL
);
12152 if (cursor
== NULL
)
12155 cursor
->base
.state
= intel_plane_duplicate_state(&cursor
->base
);
12156 if (cursor
->base
.state
== NULL
) {
12161 cursor
->can_scale
= false;
12162 cursor
->max_downscale
= 1;
12163 cursor
->pipe
= pipe
;
12164 cursor
->plane
= pipe
;
12165 cursor
->rotation
= BIT(DRM_ROTATE_0
);
12166 cursor
->check_plane
= intel_check_cursor_plane
;
12167 cursor
->commit_plane
= intel_commit_cursor_plane
;
12169 drm_universal_plane_init(dev
, &cursor
->base
, 0,
12170 &intel_cursor_plane_funcs
,
12171 intel_cursor_formats
,
12172 ARRAY_SIZE(intel_cursor_formats
),
12173 DRM_PLANE_TYPE_CURSOR
);
12175 if (INTEL_INFO(dev
)->gen
>= 4) {
12176 if (!dev
->mode_config
.rotation_property
)
12177 dev
->mode_config
.rotation_property
=
12178 drm_mode_create_rotation_property(dev
,
12179 BIT(DRM_ROTATE_0
) |
12180 BIT(DRM_ROTATE_180
));
12181 if (dev
->mode_config
.rotation_property
)
12182 drm_object_attach_property(&cursor
->base
.base
,
12183 dev
->mode_config
.rotation_property
,
12187 drm_plane_helper_add(&cursor
->base
, &intel_plane_helper_funcs
);
12189 return &cursor
->base
;
12192 static void intel_crtc_init(struct drm_device
*dev
, int pipe
)
12194 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12195 struct intel_crtc
*intel_crtc
;
12196 struct intel_crtc_state
*crtc_state
= NULL
;
12197 struct drm_plane
*primary
= NULL
;
12198 struct drm_plane
*cursor
= NULL
;
12201 intel_crtc
= kzalloc(sizeof(*intel_crtc
), GFP_KERNEL
);
12202 if (intel_crtc
== NULL
)
12205 crtc_state
= kzalloc(sizeof(*crtc_state
), GFP_KERNEL
);
12208 intel_crtc_set_state(intel_crtc
, crtc_state
);
12210 primary
= intel_primary_plane_create(dev
, pipe
);
12214 cursor
= intel_cursor_plane_create(dev
, pipe
);
12218 ret
= drm_crtc_init_with_planes(dev
, &intel_crtc
->base
, primary
,
12219 cursor
, &intel_crtc_funcs
);
12223 drm_mode_crtc_set_gamma_size(&intel_crtc
->base
, 256);
12224 for (i
= 0; i
< 256; i
++) {
12225 intel_crtc
->lut_r
[i
] = i
;
12226 intel_crtc
->lut_g
[i
] = i
;
12227 intel_crtc
->lut_b
[i
] = i
;
12231 * On gen2/3 only plane A can do fbc, but the panel fitter and lvds port
12232 * is hooked to pipe B. Hence we want plane A feeding pipe B.
12234 intel_crtc
->pipe
= pipe
;
12235 intel_crtc
->plane
= pipe
;
12236 if (HAS_FBC(dev
) && INTEL_INFO(dev
)->gen
< 4) {
12237 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
12238 intel_crtc
->plane
= !pipe
;
12241 intel_crtc
->cursor_base
= ~0;
12242 intel_crtc
->cursor_cntl
= ~0;
12243 intel_crtc
->cursor_size
= ~0;
12245 BUG_ON(pipe
>= ARRAY_SIZE(dev_priv
->plane_to_crtc_mapping
) ||
12246 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] != NULL
);
12247 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] = &intel_crtc
->base
;
12248 dev_priv
->pipe_to_crtc_mapping
[intel_crtc
->pipe
] = &intel_crtc
->base
;
12250 INIT_WORK(&intel_crtc
->mmio_flip
.work
, intel_mmio_flip_work_func
);
12252 drm_crtc_helper_add(&intel_crtc
->base
, &intel_helper_funcs
);
12254 WARN_ON(drm_crtc_index(&intel_crtc
->base
) != intel_crtc
->pipe
);
12259 drm_plane_cleanup(primary
);
12261 drm_plane_cleanup(cursor
);
12266 enum pipe
intel_get_pipe_from_connector(struct intel_connector
*connector
)
12268 struct drm_encoder
*encoder
= connector
->base
.encoder
;
12269 struct drm_device
*dev
= connector
->base
.dev
;
12271 WARN_ON(!drm_modeset_is_locked(&dev
->mode_config
.connection_mutex
));
12273 if (!encoder
|| WARN_ON(!encoder
->crtc
))
12274 return INVALID_PIPE
;
12276 return to_intel_crtc(encoder
->crtc
)->pipe
;
12279 int intel_get_pipe_from_crtc_id(struct drm_device
*dev
, void *data
,
12280 struct drm_file
*file
)
12282 struct drm_i915_get_pipe_from_crtc_id
*pipe_from_crtc_id
= data
;
12283 struct drm_crtc
*drmmode_crtc
;
12284 struct intel_crtc
*crtc
;
12286 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
12289 drmmode_crtc
= drm_crtc_find(dev
, pipe_from_crtc_id
->crtc_id
);
12291 if (!drmmode_crtc
) {
12292 DRM_ERROR("no such CRTC id\n");
12296 crtc
= to_intel_crtc(drmmode_crtc
);
12297 pipe_from_crtc_id
->pipe
= crtc
->pipe
;
12302 static int intel_encoder_clones(struct intel_encoder
*encoder
)
12304 struct drm_device
*dev
= encoder
->base
.dev
;
12305 struct intel_encoder
*source_encoder
;
12306 int index_mask
= 0;
12309 for_each_intel_encoder(dev
, source_encoder
) {
12310 if (encoders_cloneable(encoder
, source_encoder
))
12311 index_mask
|= (1 << entry
);
12319 static bool has_edp_a(struct drm_device
*dev
)
12321 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12323 if (!IS_MOBILE(dev
))
12326 if ((I915_READ(DP_A
) & DP_DETECTED
) == 0)
12329 if (IS_GEN5(dev
) && (I915_READ(FUSE_STRAP
) & ILK_eDP_A_DISABLE
))
12335 static bool intel_crt_present(struct drm_device
*dev
)
12337 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12339 if (INTEL_INFO(dev
)->gen
>= 9)
12342 if (IS_HSW_ULT(dev
) || IS_BDW_ULT(dev
))
12345 if (IS_CHERRYVIEW(dev
))
12348 if (IS_VALLEYVIEW(dev
) && !dev_priv
->vbt
.int_crt_support
)
12354 static void intel_setup_outputs(struct drm_device
*dev
)
12356 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12357 struct intel_encoder
*encoder
;
12358 bool dpd_is_edp
= false;
12360 intel_lvds_init(dev
);
12362 if (intel_crt_present(dev
))
12363 intel_crt_init(dev
);
12365 if (HAS_DDI(dev
)) {
12368 /* Haswell uses DDI functions to detect digital outputs */
12369 found
= I915_READ(DDI_BUF_CTL_A
) & DDI_INIT_DISPLAY_DETECTED
;
12370 /* DDI A only supports eDP */
12372 intel_ddi_init(dev
, PORT_A
);
12374 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
12376 found
= I915_READ(SFUSE_STRAP
);
12378 if (found
& SFUSE_STRAP_DDIB_DETECTED
)
12379 intel_ddi_init(dev
, PORT_B
);
12380 if (found
& SFUSE_STRAP_DDIC_DETECTED
)
12381 intel_ddi_init(dev
, PORT_C
);
12382 if (found
& SFUSE_STRAP_DDID_DETECTED
)
12383 intel_ddi_init(dev
, PORT_D
);
12384 } else if (HAS_PCH_SPLIT(dev
)) {
12386 dpd_is_edp
= intel_dp_is_edp(dev
, PORT_D
);
12388 if (has_edp_a(dev
))
12389 intel_dp_init(dev
, DP_A
, PORT_A
);
12391 if (I915_READ(PCH_HDMIB
) & SDVO_DETECTED
) {
12392 /* PCH SDVOB multiplex with HDMIB */
12393 found
= intel_sdvo_init(dev
, PCH_SDVOB
, true);
12395 intel_hdmi_init(dev
, PCH_HDMIB
, PORT_B
);
12396 if (!found
&& (I915_READ(PCH_DP_B
) & DP_DETECTED
))
12397 intel_dp_init(dev
, PCH_DP_B
, PORT_B
);
12400 if (I915_READ(PCH_HDMIC
) & SDVO_DETECTED
)
12401 intel_hdmi_init(dev
, PCH_HDMIC
, PORT_C
);
12403 if (!dpd_is_edp
&& I915_READ(PCH_HDMID
) & SDVO_DETECTED
)
12404 intel_hdmi_init(dev
, PCH_HDMID
, PORT_D
);
12406 if (I915_READ(PCH_DP_C
) & DP_DETECTED
)
12407 intel_dp_init(dev
, PCH_DP_C
, PORT_C
);
12409 if (I915_READ(PCH_DP_D
) & DP_DETECTED
)
12410 intel_dp_init(dev
, PCH_DP_D
, PORT_D
);
12411 } else if (IS_VALLEYVIEW(dev
)) {
12413 * The DP_DETECTED bit is the latched state of the DDC
12414 * SDA pin at boot. However since eDP doesn't require DDC
12415 * (no way to plug in a DP->HDMI dongle) the DDC pins for
12416 * eDP ports may have been muxed to an alternate function.
12417 * Thus we can't rely on the DP_DETECTED bit alone to detect
12418 * eDP ports. Consult the VBT as well as DP_DETECTED to
12419 * detect eDP ports.
12421 if (I915_READ(VLV_DISPLAY_BASE
+ GEN4_HDMIB
) & SDVO_DETECTED
&&
12422 !intel_dp_is_edp(dev
, PORT_B
))
12423 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ GEN4_HDMIB
,
12425 if (I915_READ(VLV_DISPLAY_BASE
+ DP_B
) & DP_DETECTED
||
12426 intel_dp_is_edp(dev
, PORT_B
))
12427 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_B
, PORT_B
);
12429 if (I915_READ(VLV_DISPLAY_BASE
+ GEN4_HDMIC
) & SDVO_DETECTED
&&
12430 !intel_dp_is_edp(dev
, PORT_C
))
12431 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ GEN4_HDMIC
,
12433 if (I915_READ(VLV_DISPLAY_BASE
+ DP_C
) & DP_DETECTED
||
12434 intel_dp_is_edp(dev
, PORT_C
))
12435 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_C
, PORT_C
);
12437 if (IS_CHERRYVIEW(dev
)) {
12438 if (I915_READ(VLV_DISPLAY_BASE
+ CHV_HDMID
) & SDVO_DETECTED
)
12439 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ CHV_HDMID
,
12441 /* eDP not supported on port D, so don't check VBT */
12442 if (I915_READ(VLV_DISPLAY_BASE
+ DP_D
) & DP_DETECTED
)
12443 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_D
, PORT_D
);
12446 intel_dsi_init(dev
);
12447 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev
)) {
12448 bool found
= false;
12450 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
12451 DRM_DEBUG_KMS("probing SDVOB\n");
12452 found
= intel_sdvo_init(dev
, GEN3_SDVOB
, true);
12453 if (!found
&& SUPPORTS_INTEGRATED_HDMI(dev
)) {
12454 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
12455 intel_hdmi_init(dev
, GEN4_HDMIB
, PORT_B
);
12458 if (!found
&& SUPPORTS_INTEGRATED_DP(dev
))
12459 intel_dp_init(dev
, DP_B
, PORT_B
);
12462 /* Before G4X SDVOC doesn't have its own detect register */
12464 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
12465 DRM_DEBUG_KMS("probing SDVOC\n");
12466 found
= intel_sdvo_init(dev
, GEN3_SDVOC
, false);
12469 if (!found
&& (I915_READ(GEN3_SDVOC
) & SDVO_DETECTED
)) {
12471 if (SUPPORTS_INTEGRATED_HDMI(dev
)) {
12472 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
12473 intel_hdmi_init(dev
, GEN4_HDMIC
, PORT_C
);
12475 if (SUPPORTS_INTEGRATED_DP(dev
))
12476 intel_dp_init(dev
, DP_C
, PORT_C
);
12479 if (SUPPORTS_INTEGRATED_DP(dev
) &&
12480 (I915_READ(DP_D
) & DP_DETECTED
))
12481 intel_dp_init(dev
, DP_D
, PORT_D
);
12482 } else if (IS_GEN2(dev
))
12483 intel_dvo_init(dev
);
12485 if (SUPPORTS_TV(dev
))
12486 intel_tv_init(dev
);
12488 intel_psr_init(dev
);
12490 for_each_intel_encoder(dev
, encoder
) {
12491 encoder
->base
.possible_crtcs
= encoder
->crtc_mask
;
12492 encoder
->base
.possible_clones
=
12493 intel_encoder_clones(encoder
);
12496 intel_init_pch_refclk(dev
);
12498 drm_helper_move_panel_connectors_to_head(dev
);
12501 static void intel_user_framebuffer_destroy(struct drm_framebuffer
*fb
)
12503 struct drm_device
*dev
= fb
->dev
;
12504 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
12506 drm_framebuffer_cleanup(fb
);
12507 mutex_lock(&dev
->struct_mutex
);
12508 WARN_ON(!intel_fb
->obj
->framebuffer_references
--);
12509 drm_gem_object_unreference(&intel_fb
->obj
->base
);
12510 mutex_unlock(&dev
->struct_mutex
);
12514 static int intel_user_framebuffer_create_handle(struct drm_framebuffer
*fb
,
12515 struct drm_file
*file
,
12516 unsigned int *handle
)
12518 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
12519 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
12521 return drm_gem_handle_create(file
, &obj
->base
, handle
);
12524 static const struct drm_framebuffer_funcs intel_fb_funcs
= {
12525 .destroy
= intel_user_framebuffer_destroy
,
12526 .create_handle
= intel_user_framebuffer_create_handle
,
12529 static int intel_framebuffer_init(struct drm_device
*dev
,
12530 struct intel_framebuffer
*intel_fb
,
12531 struct drm_mode_fb_cmd2
*mode_cmd
,
12532 struct drm_i915_gem_object
*obj
)
12534 int aligned_height
;
12538 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
12540 if (obj
->tiling_mode
== I915_TILING_Y
) {
12541 DRM_DEBUG("hardware does not support tiling Y\n");
12545 if (mode_cmd
->pitches
[0] & 63) {
12546 DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n",
12547 mode_cmd
->pitches
[0]);
12551 if (INTEL_INFO(dev
)->gen
>= 5 && !IS_VALLEYVIEW(dev
)) {
12552 pitch_limit
= 32*1024;
12553 } else if (INTEL_INFO(dev
)->gen
>= 4) {
12554 if (obj
->tiling_mode
)
12555 pitch_limit
= 16*1024;
12557 pitch_limit
= 32*1024;
12558 } else if (INTEL_INFO(dev
)->gen
>= 3) {
12559 if (obj
->tiling_mode
)
12560 pitch_limit
= 8*1024;
12562 pitch_limit
= 16*1024;
12564 /* XXX DSPC is limited to 4k tiled */
12565 pitch_limit
= 8*1024;
12567 if (mode_cmd
->pitches
[0] > pitch_limit
) {
12568 DRM_DEBUG("%s pitch (%d) must be at less than %d\n",
12569 obj
->tiling_mode
? "tiled" : "linear",
12570 mode_cmd
->pitches
[0], pitch_limit
);
12574 if (obj
->tiling_mode
!= I915_TILING_NONE
&&
12575 mode_cmd
->pitches
[0] != obj
->stride
) {
12576 DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n",
12577 mode_cmd
->pitches
[0], obj
->stride
);
12581 /* Reject formats not supported by any plane early. */
12582 switch (mode_cmd
->pixel_format
) {
12583 case DRM_FORMAT_C8
:
12584 case DRM_FORMAT_RGB565
:
12585 case DRM_FORMAT_XRGB8888
:
12586 case DRM_FORMAT_ARGB8888
:
12588 case DRM_FORMAT_XRGB1555
:
12589 case DRM_FORMAT_ARGB1555
:
12590 if (INTEL_INFO(dev
)->gen
> 3) {
12591 DRM_DEBUG("unsupported pixel format: %s\n",
12592 drm_get_format_name(mode_cmd
->pixel_format
));
12596 case DRM_FORMAT_XBGR8888
:
12597 case DRM_FORMAT_ABGR8888
:
12598 case DRM_FORMAT_XRGB2101010
:
12599 case DRM_FORMAT_ARGB2101010
:
12600 case DRM_FORMAT_XBGR2101010
:
12601 case DRM_FORMAT_ABGR2101010
:
12602 if (INTEL_INFO(dev
)->gen
< 4) {
12603 DRM_DEBUG("unsupported pixel format: %s\n",
12604 drm_get_format_name(mode_cmd
->pixel_format
));
12608 case DRM_FORMAT_YUYV
:
12609 case DRM_FORMAT_UYVY
:
12610 case DRM_FORMAT_YVYU
:
12611 case DRM_FORMAT_VYUY
:
12612 if (INTEL_INFO(dev
)->gen
< 5) {
12613 DRM_DEBUG("unsupported pixel format: %s\n",
12614 drm_get_format_name(mode_cmd
->pixel_format
));
12619 DRM_DEBUG("unsupported pixel format: %s\n",
12620 drm_get_format_name(mode_cmd
->pixel_format
));
12624 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
12625 if (mode_cmd
->offsets
[0] != 0)
12628 aligned_height
= intel_align_height(dev
, mode_cmd
->height
,
12630 /* FIXME drm helper for size checks (especially planar formats)? */
12631 if (obj
->base
.size
< aligned_height
* mode_cmd
->pitches
[0])
12634 drm_helper_mode_fill_fb_struct(&intel_fb
->base
, mode_cmd
);
12635 intel_fb
->obj
= obj
;
12636 intel_fb
->obj
->framebuffer_references
++;
12638 ret
= drm_framebuffer_init(dev
, &intel_fb
->base
, &intel_fb_funcs
);
12640 DRM_ERROR("framebuffer init failed %d\n", ret
);
12647 static struct drm_framebuffer
*
12648 intel_user_framebuffer_create(struct drm_device
*dev
,
12649 struct drm_file
*filp
,
12650 struct drm_mode_fb_cmd2
*mode_cmd
)
12652 struct drm_i915_gem_object
*obj
;
12654 obj
= to_intel_bo(drm_gem_object_lookup(dev
, filp
,
12655 mode_cmd
->handles
[0]));
12656 if (&obj
->base
== NULL
)
12657 return ERR_PTR(-ENOENT
);
12659 return intel_framebuffer_create(dev
, mode_cmd
, obj
);
12662 #ifndef CONFIG_DRM_I915_FBDEV
12663 static inline void intel_fbdev_output_poll_changed(struct drm_device
*dev
)
12668 static const struct drm_mode_config_funcs intel_mode_funcs
= {
12669 .fb_create
= intel_user_framebuffer_create
,
12670 .output_poll_changed
= intel_fbdev_output_poll_changed
,
12673 /* Set up chip specific display functions */
12674 static void intel_init_display(struct drm_device
*dev
)
12676 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12678 if (HAS_PCH_SPLIT(dev
) || IS_G4X(dev
))
12679 dev_priv
->display
.find_dpll
= g4x_find_best_dpll
;
12680 else if (IS_CHERRYVIEW(dev
))
12681 dev_priv
->display
.find_dpll
= chv_find_best_dpll
;
12682 else if (IS_VALLEYVIEW(dev
))
12683 dev_priv
->display
.find_dpll
= vlv_find_best_dpll
;
12684 else if (IS_PINEVIEW(dev
))
12685 dev_priv
->display
.find_dpll
= pnv_find_best_dpll
;
12687 dev_priv
->display
.find_dpll
= i9xx_find_best_dpll
;
12689 if (HAS_DDI(dev
)) {
12690 dev_priv
->display
.get_pipe_config
= haswell_get_pipe_config
;
12691 dev_priv
->display
.get_plane_config
= ironlake_get_plane_config
;
12692 dev_priv
->display
.crtc_compute_clock
=
12693 haswell_crtc_compute_clock
;
12694 dev_priv
->display
.crtc_enable
= haswell_crtc_enable
;
12695 dev_priv
->display
.crtc_disable
= haswell_crtc_disable
;
12696 dev_priv
->display
.off
= ironlake_crtc_off
;
12697 if (INTEL_INFO(dev
)->gen
>= 9)
12698 dev_priv
->display
.update_primary_plane
=
12699 skylake_update_primary_plane
;
12701 dev_priv
->display
.update_primary_plane
=
12702 ironlake_update_primary_plane
;
12703 } else if (HAS_PCH_SPLIT(dev
)) {
12704 dev_priv
->display
.get_pipe_config
= ironlake_get_pipe_config
;
12705 dev_priv
->display
.get_plane_config
= ironlake_get_plane_config
;
12706 dev_priv
->display
.crtc_compute_clock
=
12707 ironlake_crtc_compute_clock
;
12708 dev_priv
->display
.crtc_enable
= ironlake_crtc_enable
;
12709 dev_priv
->display
.crtc_disable
= ironlake_crtc_disable
;
12710 dev_priv
->display
.off
= ironlake_crtc_off
;
12711 dev_priv
->display
.update_primary_plane
=
12712 ironlake_update_primary_plane
;
12713 } else if (IS_VALLEYVIEW(dev
)) {
12714 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
12715 dev_priv
->display
.get_plane_config
= i9xx_get_plane_config
;
12716 dev_priv
->display
.crtc_compute_clock
= i9xx_crtc_compute_clock
;
12717 dev_priv
->display
.crtc_enable
= valleyview_crtc_enable
;
12718 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
12719 dev_priv
->display
.off
= i9xx_crtc_off
;
12720 dev_priv
->display
.update_primary_plane
=
12721 i9xx_update_primary_plane
;
12723 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
12724 dev_priv
->display
.get_plane_config
= i9xx_get_plane_config
;
12725 dev_priv
->display
.crtc_compute_clock
= i9xx_crtc_compute_clock
;
12726 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
12727 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
12728 dev_priv
->display
.off
= i9xx_crtc_off
;
12729 dev_priv
->display
.update_primary_plane
=
12730 i9xx_update_primary_plane
;
12733 /* Returns the core display clock speed */
12734 if (IS_VALLEYVIEW(dev
))
12735 dev_priv
->display
.get_display_clock_speed
=
12736 valleyview_get_display_clock_speed
;
12737 else if (IS_I945G(dev
) || (IS_G33(dev
) && !IS_PINEVIEW_M(dev
)))
12738 dev_priv
->display
.get_display_clock_speed
=
12739 i945_get_display_clock_speed
;
12740 else if (IS_I915G(dev
))
12741 dev_priv
->display
.get_display_clock_speed
=
12742 i915_get_display_clock_speed
;
12743 else if (IS_I945GM(dev
) || IS_845G(dev
))
12744 dev_priv
->display
.get_display_clock_speed
=
12745 i9xx_misc_get_display_clock_speed
;
12746 else if (IS_PINEVIEW(dev
))
12747 dev_priv
->display
.get_display_clock_speed
=
12748 pnv_get_display_clock_speed
;
12749 else if (IS_I915GM(dev
))
12750 dev_priv
->display
.get_display_clock_speed
=
12751 i915gm_get_display_clock_speed
;
12752 else if (IS_I865G(dev
))
12753 dev_priv
->display
.get_display_clock_speed
=
12754 i865_get_display_clock_speed
;
12755 else if (IS_I85X(dev
))
12756 dev_priv
->display
.get_display_clock_speed
=
12757 i855_get_display_clock_speed
;
12758 else /* 852, 830 */
12759 dev_priv
->display
.get_display_clock_speed
=
12760 i830_get_display_clock_speed
;
12762 if (IS_GEN5(dev
)) {
12763 dev_priv
->display
.fdi_link_train
= ironlake_fdi_link_train
;
12764 } else if (IS_GEN6(dev
)) {
12765 dev_priv
->display
.fdi_link_train
= gen6_fdi_link_train
;
12766 } else if (IS_IVYBRIDGE(dev
)) {
12767 /* FIXME: detect B0+ stepping and use auto training */
12768 dev_priv
->display
.fdi_link_train
= ivb_manual_fdi_link_train
;
12769 dev_priv
->display
.modeset_global_resources
=
12770 ivb_modeset_global_resources
;
12771 } else if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
12772 dev_priv
->display
.fdi_link_train
= hsw_fdi_link_train
;
12773 } else if (IS_VALLEYVIEW(dev
)) {
12774 dev_priv
->display
.modeset_global_resources
=
12775 valleyview_modeset_global_resources
;
12778 /* Default just returns -ENODEV to indicate unsupported */
12779 dev_priv
->display
.queue_flip
= intel_default_queue_flip
;
12781 switch (INTEL_INFO(dev
)->gen
) {
12783 dev_priv
->display
.queue_flip
= intel_gen2_queue_flip
;
12787 dev_priv
->display
.queue_flip
= intel_gen3_queue_flip
;
12792 dev_priv
->display
.queue_flip
= intel_gen4_queue_flip
;
12796 dev_priv
->display
.queue_flip
= intel_gen6_queue_flip
;
12799 case 8: /* FIXME(BDW): Check that the gen8 RCS flip works. */
12800 dev_priv
->display
.queue_flip
= intel_gen7_queue_flip
;
12803 dev_priv
->display
.queue_flip
= intel_gen9_queue_flip
;
12807 intel_panel_init_backlight_funcs(dev
);
12809 mutex_init(&dev_priv
->pps_mutex
);
12813 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
12814 * resume, or other times. This quirk makes sure that's the case for
12815 * affected systems.
12817 static void quirk_pipea_force(struct drm_device
*dev
)
12819 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12821 dev_priv
->quirks
|= QUIRK_PIPEA_FORCE
;
12822 DRM_INFO("applying pipe a force quirk\n");
12825 static void quirk_pipeb_force(struct drm_device
*dev
)
12827 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12829 dev_priv
->quirks
|= QUIRK_PIPEB_FORCE
;
12830 DRM_INFO("applying pipe b force quirk\n");
12834 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
12836 static void quirk_ssc_force_disable(struct drm_device
*dev
)
12838 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12839 dev_priv
->quirks
|= QUIRK_LVDS_SSC_DISABLE
;
12840 DRM_INFO("applying lvds SSC disable quirk\n");
12844 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
12847 static void quirk_invert_brightness(struct drm_device
*dev
)
12849 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12850 dev_priv
->quirks
|= QUIRK_INVERT_BRIGHTNESS
;
12851 DRM_INFO("applying inverted panel brightness quirk\n");
12854 /* Some VBT's incorrectly indicate no backlight is present */
12855 static void quirk_backlight_present(struct drm_device
*dev
)
12857 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12858 dev_priv
->quirks
|= QUIRK_BACKLIGHT_PRESENT
;
12859 DRM_INFO("applying backlight present quirk\n");
12862 struct intel_quirk
{
12864 int subsystem_vendor
;
12865 int subsystem_device
;
12866 void (*hook
)(struct drm_device
*dev
);
12869 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
12870 struct intel_dmi_quirk
{
12871 void (*hook
)(struct drm_device
*dev
);
12872 const struct dmi_system_id (*dmi_id_list
)[];
12875 static int intel_dmi_reverse_brightness(const struct dmi_system_id
*id
)
12877 DRM_INFO("Backlight polarity reversed on %s\n", id
->ident
);
12881 static const struct intel_dmi_quirk intel_dmi_quirks
[] = {
12883 .dmi_id_list
= &(const struct dmi_system_id
[]) {
12885 .callback
= intel_dmi_reverse_brightness
,
12886 .ident
= "NCR Corporation",
12887 .matches
= {DMI_MATCH(DMI_SYS_VENDOR
, "NCR Corporation"),
12888 DMI_MATCH(DMI_PRODUCT_NAME
, ""),
12891 { } /* terminating entry */
12893 .hook
= quirk_invert_brightness
,
12897 static struct intel_quirk intel_quirks
[] = {
12898 /* HP Mini needs pipe A force quirk (LP: #322104) */
12899 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force
},
12901 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
12902 { 0x2592, 0x1179, 0x0001, quirk_pipea_force
},
12904 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
12905 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force
},
12907 /* 830 needs to leave pipe A & dpll A up */
12908 { 0x3577, PCI_ANY_ID
, PCI_ANY_ID
, quirk_pipea_force
},
12910 /* 830 needs to leave pipe B & dpll B up */
12911 { 0x3577, PCI_ANY_ID
, PCI_ANY_ID
, quirk_pipeb_force
},
12913 /* Lenovo U160 cannot use SSC on LVDS */
12914 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable
},
12916 /* Sony Vaio Y cannot use SSC on LVDS */
12917 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable
},
12919 /* Acer Aspire 5734Z must invert backlight brightness */
12920 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness
},
12922 /* Acer/eMachines G725 */
12923 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness
},
12925 /* Acer/eMachines e725 */
12926 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness
},
12928 /* Acer/Packard Bell NCL20 */
12929 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness
},
12931 /* Acer Aspire 4736Z */
12932 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness
},
12934 /* Acer Aspire 5336 */
12935 { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness
},
12937 /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */
12938 { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present
},
12940 /* Acer C720 Chromebook (Core i3 4005U) */
12941 { 0x0a16, 0x1025, 0x0a11, quirk_backlight_present
},
12943 /* Apple Macbook 2,1 (Core 2 T7400) */
12944 { 0x27a2, 0x8086, 0x7270, quirk_backlight_present
},
12946 /* Toshiba CB35 Chromebook (Celeron 2955U) */
12947 { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present
},
12949 /* HP Chromebook 14 (Celeron 2955U) */
12950 { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present
},
12953 static void intel_init_quirks(struct drm_device
*dev
)
12955 struct pci_dev
*d
= dev
->pdev
;
12958 for (i
= 0; i
< ARRAY_SIZE(intel_quirks
); i
++) {
12959 struct intel_quirk
*q
= &intel_quirks
[i
];
12961 if (d
->device
== q
->device
&&
12962 (d
->subsystem_vendor
== q
->subsystem_vendor
||
12963 q
->subsystem_vendor
== PCI_ANY_ID
) &&
12964 (d
->subsystem_device
== q
->subsystem_device
||
12965 q
->subsystem_device
== PCI_ANY_ID
))
12968 for (i
= 0; i
< ARRAY_SIZE(intel_dmi_quirks
); i
++) {
12969 if (dmi_check_system(*intel_dmi_quirks
[i
].dmi_id_list
) != 0)
12970 intel_dmi_quirks
[i
].hook(dev
);
12974 /* Disable the VGA plane that we never use */
12975 static void i915_disable_vga(struct drm_device
*dev
)
12977 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12979 u32 vga_reg
= i915_vgacntrl_reg(dev
);
12981 /* WaEnableVGAAccessThroughIOPort:ctg,elk,ilk,snb,ivb,vlv,hsw */
12982 vga_get_uninterruptible(dev
->pdev
, VGA_RSRC_LEGACY_IO
);
12983 outb(SR01
, VGA_SR_INDEX
);
12984 sr1
= inb(VGA_SR_DATA
);
12985 outb(sr1
| 1<<5, VGA_SR_DATA
);
12986 vga_put(dev
->pdev
, VGA_RSRC_LEGACY_IO
);
12989 I915_WRITE(vga_reg
, VGA_DISP_DISABLE
);
12990 POSTING_READ(vga_reg
);
12993 void intel_modeset_init_hw(struct drm_device
*dev
)
12995 intel_prepare_ddi(dev
);
12997 if (IS_VALLEYVIEW(dev
))
12998 vlv_update_cdclk(dev
);
13000 intel_init_clock_gating(dev
);
13002 intel_enable_gt_powersave(dev
);
13005 void intel_modeset_init(struct drm_device
*dev
)
13007 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13010 struct intel_crtc
*crtc
;
13012 drm_mode_config_init(dev
);
13014 dev
->mode_config
.min_width
= 0;
13015 dev
->mode_config
.min_height
= 0;
13017 dev
->mode_config
.preferred_depth
= 24;
13018 dev
->mode_config
.prefer_shadow
= 1;
13020 dev
->mode_config
.funcs
= &intel_mode_funcs
;
13022 intel_init_quirks(dev
);
13024 intel_init_pm(dev
);
13026 if (INTEL_INFO(dev
)->num_pipes
== 0)
13029 intel_init_display(dev
);
13030 intel_init_audio(dev
);
13032 if (IS_GEN2(dev
)) {
13033 dev
->mode_config
.max_width
= 2048;
13034 dev
->mode_config
.max_height
= 2048;
13035 } else if (IS_GEN3(dev
)) {
13036 dev
->mode_config
.max_width
= 4096;
13037 dev
->mode_config
.max_height
= 4096;
13039 dev
->mode_config
.max_width
= 8192;
13040 dev
->mode_config
.max_height
= 8192;
13043 if (IS_845G(dev
) || IS_I865G(dev
)) {
13044 dev
->mode_config
.cursor_width
= IS_845G(dev
) ? 64 : 512;
13045 dev
->mode_config
.cursor_height
= 1023;
13046 } else if (IS_GEN2(dev
)) {
13047 dev
->mode_config
.cursor_width
= GEN2_CURSOR_WIDTH
;
13048 dev
->mode_config
.cursor_height
= GEN2_CURSOR_HEIGHT
;
13050 dev
->mode_config
.cursor_width
= MAX_CURSOR_WIDTH
;
13051 dev
->mode_config
.cursor_height
= MAX_CURSOR_HEIGHT
;
13054 dev
->mode_config
.fb_base
= dev_priv
->gtt
.mappable_base
;
13056 DRM_DEBUG_KMS("%d display pipe%s available.\n",
13057 INTEL_INFO(dev
)->num_pipes
,
13058 INTEL_INFO(dev
)->num_pipes
> 1 ? "s" : "");
13060 for_each_pipe(dev_priv
, pipe
) {
13061 intel_crtc_init(dev
, pipe
);
13062 for_each_sprite(pipe
, sprite
) {
13063 ret
= intel_plane_init(dev
, pipe
, sprite
);
13065 DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n",
13066 pipe_name(pipe
), sprite_name(pipe
, sprite
), ret
);
13070 intel_init_dpio(dev
);
13072 intel_shared_dpll_init(dev
);
13074 /* Just disable it once at startup */
13075 i915_disable_vga(dev
);
13076 intel_setup_outputs(dev
);
13078 /* Just in case the BIOS is doing something questionable. */
13079 intel_fbc_disable(dev
);
13081 drm_modeset_lock_all(dev
);
13082 intel_modeset_setup_hw_state(dev
, false);
13083 drm_modeset_unlock_all(dev
);
13085 for_each_intel_crtc(dev
, crtc
) {
13090 * Note that reserving the BIOS fb up front prevents us
13091 * from stuffing other stolen allocations like the ring
13092 * on top. This prevents some ugliness at boot time, and
13093 * can even allow for smooth boot transitions if the BIOS
13094 * fb is large enough for the active pipe configuration.
13096 if (dev_priv
->display
.get_plane_config
) {
13097 dev_priv
->display
.get_plane_config(crtc
,
13098 &crtc
->plane_config
);
13100 * If the fb is shared between multiple heads, we'll
13101 * just get the first one.
13103 intel_find_plane_obj(crtc
, &crtc
->plane_config
);
13108 static void intel_enable_pipe_a(struct drm_device
*dev
)
13110 struct intel_connector
*connector
;
13111 struct drm_connector
*crt
= NULL
;
13112 struct intel_load_detect_pipe load_detect_temp
;
13113 struct drm_modeset_acquire_ctx
*ctx
= dev
->mode_config
.acquire_ctx
;
13115 /* We can't just switch on the pipe A, we need to set things up with a
13116 * proper mode and output configuration. As a gross hack, enable pipe A
13117 * by enabling the load detect pipe once. */
13118 list_for_each_entry(connector
,
13119 &dev
->mode_config
.connector_list
,
13121 if (connector
->encoder
->type
== INTEL_OUTPUT_ANALOG
) {
13122 crt
= &connector
->base
;
13130 if (intel_get_load_detect_pipe(crt
, NULL
, &load_detect_temp
, ctx
))
13131 intel_release_load_detect_pipe(crt
, &load_detect_temp
);
13135 intel_check_plane_mapping(struct intel_crtc
*crtc
)
13137 struct drm_device
*dev
= crtc
->base
.dev
;
13138 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13141 if (INTEL_INFO(dev
)->num_pipes
== 1)
13144 reg
= DSPCNTR(!crtc
->plane
);
13145 val
= I915_READ(reg
);
13147 if ((val
& DISPLAY_PLANE_ENABLE
) &&
13148 (!!(val
& DISPPLANE_SEL_PIPE_MASK
) == crtc
->pipe
))
13154 static void intel_sanitize_crtc(struct intel_crtc
*crtc
)
13156 struct drm_device
*dev
= crtc
->base
.dev
;
13157 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13160 /* Clear any frame start delays used for debugging left by the BIOS */
13161 reg
= PIPECONF(crtc
->config
->cpu_transcoder
);
13162 I915_WRITE(reg
, I915_READ(reg
) & ~PIPECONF_FRAME_START_DELAY_MASK
);
13164 /* restore vblank interrupts to correct state */
13165 if (crtc
->active
) {
13166 update_scanline_offset(crtc
);
13167 drm_vblank_on(dev
, crtc
->pipe
);
13169 drm_vblank_off(dev
, crtc
->pipe
);
13171 /* We need to sanitize the plane -> pipe mapping first because this will
13172 * disable the crtc (and hence change the state) if it is wrong. Note
13173 * that gen4+ has a fixed plane -> pipe mapping. */
13174 if (INTEL_INFO(dev
)->gen
< 4 && !intel_check_plane_mapping(crtc
)) {
13175 struct intel_connector
*connector
;
13178 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
13179 crtc
->base
.base
.id
);
13181 /* Pipe has the wrong plane attached and the plane is active.
13182 * Temporarily change the plane mapping and disable everything
13184 plane
= crtc
->plane
;
13185 crtc
->plane
= !plane
;
13186 crtc
->primary_enabled
= true;
13187 dev_priv
->display
.crtc_disable(&crtc
->base
);
13188 crtc
->plane
= plane
;
13190 /* ... and break all links. */
13191 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
13193 if (connector
->encoder
->base
.crtc
!= &crtc
->base
)
13196 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
13197 connector
->base
.encoder
= NULL
;
13199 /* multiple connectors may have the same encoder:
13200 * handle them and break crtc link separately */
13201 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
13203 if (connector
->encoder
->base
.crtc
== &crtc
->base
) {
13204 connector
->encoder
->base
.crtc
= NULL
;
13205 connector
->encoder
->connectors_active
= false;
13208 WARN_ON(crtc
->active
);
13209 crtc
->base
.enabled
= false;
13212 if (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
&&
13213 crtc
->pipe
== PIPE_A
&& !crtc
->active
) {
13214 /* BIOS forgot to enable pipe A, this mostly happens after
13215 * resume. Force-enable the pipe to fix this, the update_dpms
13216 * call below we restore the pipe to the right state, but leave
13217 * the required bits on. */
13218 intel_enable_pipe_a(dev
);
13221 /* Adjust the state of the output pipe according to whether we
13222 * have active connectors/encoders. */
13223 intel_crtc_update_dpms(&crtc
->base
);
13225 if (crtc
->active
!= crtc
->base
.enabled
) {
13226 struct intel_encoder
*encoder
;
13228 /* This can happen either due to bugs in the get_hw_state
13229 * functions or because the pipe is force-enabled due to the
13231 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
13232 crtc
->base
.base
.id
,
13233 crtc
->base
.enabled
? "enabled" : "disabled",
13234 crtc
->active
? "enabled" : "disabled");
13236 crtc
->base
.enabled
= crtc
->active
;
13238 /* Because we only establish the connector -> encoder ->
13239 * crtc links if something is active, this means the
13240 * crtc is now deactivated. Break the links. connector
13241 * -> encoder links are only establish when things are
13242 * actually up, hence no need to break them. */
13243 WARN_ON(crtc
->active
);
13245 for_each_encoder_on_crtc(dev
, &crtc
->base
, encoder
) {
13246 WARN_ON(encoder
->connectors_active
);
13247 encoder
->base
.crtc
= NULL
;
13251 if (crtc
->active
|| HAS_GMCH_DISPLAY(dev
)) {
13253 * We start out with underrun reporting disabled to avoid races.
13254 * For correct bookkeeping mark this on active crtcs.
13256 * Also on gmch platforms we dont have any hardware bits to
13257 * disable the underrun reporting. Which means we need to start
13258 * out with underrun reporting disabled also on inactive pipes,
13259 * since otherwise we'll complain about the garbage we read when
13260 * e.g. coming up after runtime pm.
13262 * No protection against concurrent access is required - at
13263 * worst a fifo underrun happens which also sets this to false.
13265 crtc
->cpu_fifo_underrun_disabled
= true;
13266 crtc
->pch_fifo_underrun_disabled
= true;
13270 static void intel_sanitize_encoder(struct intel_encoder
*encoder
)
13272 struct intel_connector
*connector
;
13273 struct drm_device
*dev
= encoder
->base
.dev
;
13275 /* We need to check both for a crtc link (meaning that the
13276 * encoder is active and trying to read from a pipe) and the
13277 * pipe itself being active. */
13278 bool has_active_crtc
= encoder
->base
.crtc
&&
13279 to_intel_crtc(encoder
->base
.crtc
)->active
;
13281 if (encoder
->connectors_active
&& !has_active_crtc
) {
13282 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
13283 encoder
->base
.base
.id
,
13284 encoder
->base
.name
);
13286 /* Connector is active, but has no active pipe. This is
13287 * fallout from our resume register restoring. Disable
13288 * the encoder manually again. */
13289 if (encoder
->base
.crtc
) {
13290 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
13291 encoder
->base
.base
.id
,
13292 encoder
->base
.name
);
13293 encoder
->disable(encoder
);
13294 if (encoder
->post_disable
)
13295 encoder
->post_disable(encoder
);
13297 encoder
->base
.crtc
= NULL
;
13298 encoder
->connectors_active
= false;
13300 /* Inconsistent output/port/pipe state happens presumably due to
13301 * a bug in one of the get_hw_state functions. Or someplace else
13302 * in our code, like the register restore mess on resume. Clamp
13303 * things to off as a safer default. */
13304 list_for_each_entry(connector
,
13305 &dev
->mode_config
.connector_list
,
13307 if (connector
->encoder
!= encoder
)
13309 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
13310 connector
->base
.encoder
= NULL
;
13313 /* Enabled encoders without active connectors will be fixed in
13314 * the crtc fixup. */
13317 void i915_redisable_vga_power_on(struct drm_device
*dev
)
13319 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13320 u32 vga_reg
= i915_vgacntrl_reg(dev
);
13322 if (!(I915_READ(vga_reg
) & VGA_DISP_DISABLE
)) {
13323 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
13324 i915_disable_vga(dev
);
13328 void i915_redisable_vga(struct drm_device
*dev
)
13330 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13332 /* This function can be called both from intel_modeset_setup_hw_state or
13333 * at a very early point in our resume sequence, where the power well
13334 * structures are not yet restored. Since this function is at a very
13335 * paranoid "someone might have enabled VGA while we were not looking"
13336 * level, just check if the power well is enabled instead of trying to
13337 * follow the "don't touch the power well if we don't need it" policy
13338 * the rest of the driver uses. */
13339 if (!intel_display_power_is_enabled(dev_priv
, POWER_DOMAIN_VGA
))
13342 i915_redisable_vga_power_on(dev
);
13345 static bool primary_get_hw_state(struct intel_crtc
*crtc
)
13347 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
13352 return I915_READ(DSPCNTR(crtc
->plane
)) & DISPLAY_PLANE_ENABLE
;
13355 static void intel_modeset_readout_hw_state(struct drm_device
*dev
)
13357 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13359 struct intel_crtc
*crtc
;
13360 struct intel_encoder
*encoder
;
13361 struct intel_connector
*connector
;
13364 for_each_intel_crtc(dev
, crtc
) {
13365 memset(crtc
->config
, 0, sizeof(*crtc
->config
));
13367 crtc
->config
->quirks
|= PIPE_CONFIG_QUIRK_INHERITED_MODE
;
13369 crtc
->active
= dev_priv
->display
.get_pipe_config(crtc
,
13372 crtc
->base
.enabled
= crtc
->active
;
13373 crtc
->primary_enabled
= primary_get_hw_state(crtc
);
13375 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
13376 crtc
->base
.base
.id
,
13377 crtc
->active
? "enabled" : "disabled");
13380 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
13381 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
13383 pll
->on
= pll
->get_hw_state(dev_priv
, pll
,
13384 &pll
->config
.hw_state
);
13386 pll
->config
.crtc_mask
= 0;
13387 for_each_intel_crtc(dev
, crtc
) {
13388 if (crtc
->active
&& intel_crtc_to_shared_dpll(crtc
) == pll
) {
13390 pll
->config
.crtc_mask
|= 1 << crtc
->pipe
;
13394 DRM_DEBUG_KMS("%s hw state readout: crtc_mask 0x%08x, on %i\n",
13395 pll
->name
, pll
->config
.crtc_mask
, pll
->on
);
13397 if (pll
->config
.crtc_mask
)
13398 intel_display_power_get(dev_priv
, POWER_DOMAIN_PLLS
);
13401 for_each_intel_encoder(dev
, encoder
) {
13404 if (encoder
->get_hw_state(encoder
, &pipe
)) {
13405 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
13406 encoder
->base
.crtc
= &crtc
->base
;
13407 encoder
->get_config(encoder
, crtc
->config
);
13409 encoder
->base
.crtc
= NULL
;
13412 encoder
->connectors_active
= false;
13413 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n",
13414 encoder
->base
.base
.id
,
13415 encoder
->base
.name
,
13416 encoder
->base
.crtc
? "enabled" : "disabled",
13420 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
13422 if (connector
->get_hw_state(connector
)) {
13423 connector
->base
.dpms
= DRM_MODE_DPMS_ON
;
13424 connector
->encoder
->connectors_active
= true;
13425 connector
->base
.encoder
= &connector
->encoder
->base
;
13427 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
13428 connector
->base
.encoder
= NULL
;
13430 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
13431 connector
->base
.base
.id
,
13432 connector
->base
.name
,
13433 connector
->base
.encoder
? "enabled" : "disabled");
13437 /* Scan out the current hw modeset state, sanitizes it and maps it into the drm
13438 * and i915 state tracking structures. */
13439 void intel_modeset_setup_hw_state(struct drm_device
*dev
,
13440 bool force_restore
)
13442 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13444 struct intel_crtc
*crtc
;
13445 struct intel_encoder
*encoder
;
13448 intel_modeset_readout_hw_state(dev
);
13451 * Now that we have the config, copy it to each CRTC struct
13452 * Note that this could go away if we move to using crtc_config
13453 * checking everywhere.
13455 for_each_intel_crtc(dev
, crtc
) {
13456 if (crtc
->active
&& i915
.fastboot
) {
13457 intel_mode_from_pipe_config(&crtc
->base
.mode
,
13459 DRM_DEBUG_KMS("[CRTC:%d] found active mode: ",
13460 crtc
->base
.base
.id
);
13461 drm_mode_debug_printmodeline(&crtc
->base
.mode
);
13465 /* HW state is read out, now we need to sanitize this mess. */
13466 for_each_intel_encoder(dev
, encoder
) {
13467 intel_sanitize_encoder(encoder
);
13470 for_each_pipe(dev_priv
, pipe
) {
13471 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
13472 intel_sanitize_crtc(crtc
);
13473 intel_dump_pipe_config(crtc
, crtc
->config
,
13474 "[setup_hw_state]");
13477 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
13478 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
13480 if (!pll
->on
|| pll
->active
)
13483 DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll
->name
);
13485 pll
->disable(dev_priv
, pll
);
13490 skl_wm_get_hw_state(dev
);
13491 else if (HAS_PCH_SPLIT(dev
))
13492 ilk_wm_get_hw_state(dev
);
13494 if (force_restore
) {
13495 i915_redisable_vga(dev
);
13498 * We need to use raw interfaces for restoring state to avoid
13499 * checking (bogus) intermediate states.
13501 for_each_pipe(dev_priv
, pipe
) {
13502 struct drm_crtc
*crtc
=
13503 dev_priv
->pipe_to_crtc_mapping
[pipe
];
13505 intel_set_mode(crtc
, &crtc
->mode
, crtc
->x
, crtc
->y
,
13506 crtc
->primary
->fb
);
13509 intel_modeset_update_staged_output_state(dev
);
13512 intel_modeset_check_state(dev
);
13515 void intel_modeset_gem_init(struct drm_device
*dev
)
13517 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13518 struct drm_crtc
*c
;
13519 struct drm_i915_gem_object
*obj
;
13521 mutex_lock(&dev
->struct_mutex
);
13522 intel_init_gt_powersave(dev
);
13523 mutex_unlock(&dev
->struct_mutex
);
13526 * There may be no VBT; and if the BIOS enabled SSC we can
13527 * just keep using it to avoid unnecessary flicker. Whereas if the
13528 * BIOS isn't using it, don't assume it will work even if the VBT
13529 * indicates as much.
13531 if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
13532 dev_priv
->vbt
.lvds_use_ssc
= !!(I915_READ(PCH_DREF_CONTROL
) &
13535 intel_modeset_init_hw(dev
);
13537 intel_setup_overlay(dev
);
13540 * Make sure any fbs we allocated at startup are properly
13541 * pinned & fenced. When we do the allocation it's too early
13544 mutex_lock(&dev
->struct_mutex
);
13545 for_each_crtc(dev
, c
) {
13546 obj
= intel_fb_obj(c
->primary
->fb
);
13550 if (intel_pin_and_fence_fb_obj(c
->primary
,
13553 DRM_ERROR("failed to pin boot fb on pipe %d\n",
13554 to_intel_crtc(c
)->pipe
);
13555 drm_framebuffer_unreference(c
->primary
->fb
);
13556 c
->primary
->fb
= NULL
;
13559 mutex_unlock(&dev
->struct_mutex
);
13561 intel_backlight_register(dev
);
13564 void intel_connector_unregister(struct intel_connector
*intel_connector
)
13566 struct drm_connector
*connector
= &intel_connector
->base
;
13568 intel_panel_destroy_backlight(connector
);
13569 drm_connector_unregister(connector
);
13572 void intel_modeset_cleanup(struct drm_device
*dev
)
13574 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13575 struct drm_connector
*connector
;
13577 intel_disable_gt_powersave(dev
);
13579 intel_backlight_unregister(dev
);
13582 * Interrupts and polling as the first thing to avoid creating havoc.
13583 * Too much stuff here (turning of connectors, ...) would
13584 * experience fancy races otherwise.
13586 intel_irq_uninstall(dev_priv
);
13589 * Due to the hpd irq storm handling the hotplug work can re-arm the
13590 * poll handlers. Hence disable polling after hpd handling is shut down.
13592 drm_kms_helper_poll_fini(dev
);
13594 mutex_lock(&dev
->struct_mutex
);
13596 intel_unregister_dsm_handler();
13598 intel_fbc_disable(dev
);
13600 ironlake_teardown_rc6(dev
);
13602 mutex_unlock(&dev
->struct_mutex
);
13604 /* flush any delayed tasks or pending work */
13605 flush_scheduled_work();
13607 /* destroy the backlight and sysfs files before encoders/connectors */
13608 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
13609 struct intel_connector
*intel_connector
;
13611 intel_connector
= to_intel_connector(connector
);
13612 intel_connector
->unregister(intel_connector
);
13615 drm_mode_config_cleanup(dev
);
13617 intel_cleanup_overlay(dev
);
13619 mutex_lock(&dev
->struct_mutex
);
13620 intel_cleanup_gt_powersave(dev
);
13621 mutex_unlock(&dev
->struct_mutex
);
13625 * Return which encoder is currently attached for connector.
13627 struct drm_encoder
*intel_best_encoder(struct drm_connector
*connector
)
13629 return &intel_attached_encoder(connector
)->base
;
13632 void intel_connector_attach_encoder(struct intel_connector
*connector
,
13633 struct intel_encoder
*encoder
)
13635 connector
->encoder
= encoder
;
13636 drm_mode_connector_attach_encoder(&connector
->base
,
13641 * set vga decode state - true == enable VGA decode
13643 int intel_modeset_vga_set_state(struct drm_device
*dev
, bool state
)
13645 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13646 unsigned reg
= INTEL_INFO(dev
)->gen
>= 6 ? SNB_GMCH_CTRL
: INTEL_GMCH_CTRL
;
13649 if (pci_read_config_word(dev_priv
->bridge_dev
, reg
, &gmch_ctrl
)) {
13650 DRM_ERROR("failed to read control word\n");
13654 if (!!(gmch_ctrl
& INTEL_GMCH_VGA_DISABLE
) == !state
)
13658 gmch_ctrl
&= ~INTEL_GMCH_VGA_DISABLE
;
13660 gmch_ctrl
|= INTEL_GMCH_VGA_DISABLE
;
13662 if (pci_write_config_word(dev_priv
->bridge_dev
, reg
, gmch_ctrl
)) {
13663 DRM_ERROR("failed to write control word\n");
13670 struct intel_display_error_state
{
13672 u32 power_well_driver
;
13674 int num_transcoders
;
13676 struct intel_cursor_error_state
{
13681 } cursor
[I915_MAX_PIPES
];
13683 struct intel_pipe_error_state
{
13684 bool power_domain_on
;
13687 } pipe
[I915_MAX_PIPES
];
13689 struct intel_plane_error_state
{
13697 } plane
[I915_MAX_PIPES
];
13699 struct intel_transcoder_error_state
{
13700 bool power_domain_on
;
13701 enum transcoder cpu_transcoder
;
13714 struct intel_display_error_state
*
13715 intel_display_capture_error_state(struct drm_device
*dev
)
13717 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13718 struct intel_display_error_state
*error
;
13719 int transcoders
[] = {
13727 if (INTEL_INFO(dev
)->num_pipes
== 0)
13730 error
= kzalloc(sizeof(*error
), GFP_ATOMIC
);
13734 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
13735 error
->power_well_driver
= I915_READ(HSW_PWR_WELL_DRIVER
);
13737 for_each_pipe(dev_priv
, i
) {
13738 error
->pipe
[i
].power_domain_on
=
13739 __intel_display_power_is_enabled(dev_priv
,
13740 POWER_DOMAIN_PIPE(i
));
13741 if (!error
->pipe
[i
].power_domain_on
)
13744 error
->cursor
[i
].control
= I915_READ(CURCNTR(i
));
13745 error
->cursor
[i
].position
= I915_READ(CURPOS(i
));
13746 error
->cursor
[i
].base
= I915_READ(CURBASE(i
));
13748 error
->plane
[i
].control
= I915_READ(DSPCNTR(i
));
13749 error
->plane
[i
].stride
= I915_READ(DSPSTRIDE(i
));
13750 if (INTEL_INFO(dev
)->gen
<= 3) {
13751 error
->plane
[i
].size
= I915_READ(DSPSIZE(i
));
13752 error
->plane
[i
].pos
= I915_READ(DSPPOS(i
));
13754 if (INTEL_INFO(dev
)->gen
<= 7 && !IS_HASWELL(dev
))
13755 error
->plane
[i
].addr
= I915_READ(DSPADDR(i
));
13756 if (INTEL_INFO(dev
)->gen
>= 4) {
13757 error
->plane
[i
].surface
= I915_READ(DSPSURF(i
));
13758 error
->plane
[i
].tile_offset
= I915_READ(DSPTILEOFF(i
));
13761 error
->pipe
[i
].source
= I915_READ(PIPESRC(i
));
13763 if (HAS_GMCH_DISPLAY(dev
))
13764 error
->pipe
[i
].stat
= I915_READ(PIPESTAT(i
));
13767 error
->num_transcoders
= INTEL_INFO(dev
)->num_pipes
;
13768 if (HAS_DDI(dev_priv
->dev
))
13769 error
->num_transcoders
++; /* Account for eDP. */
13771 for (i
= 0; i
< error
->num_transcoders
; i
++) {
13772 enum transcoder cpu_transcoder
= transcoders
[i
];
13774 error
->transcoder
[i
].power_domain_on
=
13775 __intel_display_power_is_enabled(dev_priv
,
13776 POWER_DOMAIN_TRANSCODER(cpu_transcoder
));
13777 if (!error
->transcoder
[i
].power_domain_on
)
13780 error
->transcoder
[i
].cpu_transcoder
= cpu_transcoder
;
13782 error
->transcoder
[i
].conf
= I915_READ(PIPECONF(cpu_transcoder
));
13783 error
->transcoder
[i
].htotal
= I915_READ(HTOTAL(cpu_transcoder
));
13784 error
->transcoder
[i
].hblank
= I915_READ(HBLANK(cpu_transcoder
));
13785 error
->transcoder
[i
].hsync
= I915_READ(HSYNC(cpu_transcoder
));
13786 error
->transcoder
[i
].vtotal
= I915_READ(VTOTAL(cpu_transcoder
));
13787 error
->transcoder
[i
].vblank
= I915_READ(VBLANK(cpu_transcoder
));
13788 error
->transcoder
[i
].vsync
= I915_READ(VSYNC(cpu_transcoder
));
13794 #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
13797 intel_display_print_error_state(struct drm_i915_error_state_buf
*m
,
13798 struct drm_device
*dev
,
13799 struct intel_display_error_state
*error
)
13801 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13807 err_printf(m
, "Num Pipes: %d\n", INTEL_INFO(dev
)->num_pipes
);
13808 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
13809 err_printf(m
, "PWR_WELL_CTL2: %08x\n",
13810 error
->power_well_driver
);
13811 for_each_pipe(dev_priv
, i
) {
13812 err_printf(m
, "Pipe [%d]:\n", i
);
13813 err_printf(m
, " Power: %s\n",
13814 error
->pipe
[i
].power_domain_on
? "on" : "off");
13815 err_printf(m
, " SRC: %08x\n", error
->pipe
[i
].source
);
13816 err_printf(m
, " STAT: %08x\n", error
->pipe
[i
].stat
);
13818 err_printf(m
, "Plane [%d]:\n", i
);
13819 err_printf(m
, " CNTR: %08x\n", error
->plane
[i
].control
);
13820 err_printf(m
, " STRIDE: %08x\n", error
->plane
[i
].stride
);
13821 if (INTEL_INFO(dev
)->gen
<= 3) {
13822 err_printf(m
, " SIZE: %08x\n", error
->plane
[i
].size
);
13823 err_printf(m
, " POS: %08x\n", error
->plane
[i
].pos
);
13825 if (INTEL_INFO(dev
)->gen
<= 7 && !IS_HASWELL(dev
))
13826 err_printf(m
, " ADDR: %08x\n", error
->plane
[i
].addr
);
13827 if (INTEL_INFO(dev
)->gen
>= 4) {
13828 err_printf(m
, " SURF: %08x\n", error
->plane
[i
].surface
);
13829 err_printf(m
, " TILEOFF: %08x\n", error
->plane
[i
].tile_offset
);
13832 err_printf(m
, "Cursor [%d]:\n", i
);
13833 err_printf(m
, " CNTR: %08x\n", error
->cursor
[i
].control
);
13834 err_printf(m
, " POS: %08x\n", error
->cursor
[i
].position
);
13835 err_printf(m
, " BASE: %08x\n", error
->cursor
[i
].base
);
13838 for (i
= 0; i
< error
->num_transcoders
; i
++) {
13839 err_printf(m
, "CPU transcoder: %c\n",
13840 transcoder_name(error
->transcoder
[i
].cpu_transcoder
));
13841 err_printf(m
, " Power: %s\n",
13842 error
->transcoder
[i
].power_domain_on
? "on" : "off");
13843 err_printf(m
, " CONF: %08x\n", error
->transcoder
[i
].conf
);
13844 err_printf(m
, " HTOTAL: %08x\n", error
->transcoder
[i
].htotal
);
13845 err_printf(m
, " HBLANK: %08x\n", error
->transcoder
[i
].hblank
);
13846 err_printf(m
, " HSYNC: %08x\n", error
->transcoder
[i
].hsync
);
13847 err_printf(m
, " VTOTAL: %08x\n", error
->transcoder
[i
].vtotal
);
13848 err_printf(m
, " VBLANK: %08x\n", error
->transcoder
[i
].vblank
);
13849 err_printf(m
, " VSYNC: %08x\n", error
->transcoder
[i
].vsync
);
13853 void intel_modeset_preclose(struct drm_device
*dev
, struct drm_file
*file
)
13855 struct intel_crtc
*crtc
;
13857 for_each_intel_crtc(dev
, crtc
) {
13858 struct intel_unpin_work
*work
;
13860 spin_lock_irq(&dev
->event_lock
);
13862 work
= crtc
->unpin_work
;
13864 if (work
&& work
->event
&&
13865 work
->event
->base
.file_priv
== file
) {
13866 kfree(work
->event
);
13867 work
->event
= NULL
;
13870 spin_unlock_irq(&dev
->event_lock
);