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 <linux/dma_remapping.h>
44 static void intel_increase_pllclock(struct drm_crtc
*crtc
);
45 static void intel_crtc_update_cursor(struct drm_crtc
*crtc
, bool on
);
47 static void i9xx_crtc_clock_get(struct intel_crtc
*crtc
,
48 struct intel_crtc_config
*pipe_config
);
49 static void ironlake_pch_clock_get(struct intel_crtc
*crtc
,
50 struct intel_crtc_config
*pipe_config
);
52 static int intel_set_mode(struct drm_crtc
*crtc
, struct drm_display_mode
*mode
,
53 int x
, int y
, struct drm_framebuffer
*old_fb
);
65 typedef struct intel_limit intel_limit_t
;
67 intel_range_t dot
, vco
, n
, m
, m1
, m2
, p
, p1
;
72 intel_pch_rawclk(struct drm_device
*dev
)
74 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
76 WARN_ON(!HAS_PCH_SPLIT(dev
));
78 return I915_READ(PCH_RAWCLK_FREQ
) & RAWCLK_FREQ_MASK
;
81 static inline u32
/* units of 100MHz */
82 intel_fdi_link_freq(struct drm_device
*dev
)
85 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
86 return (I915_READ(FDI_PLL_BIOS_0
) & FDI_PLL_FB_CLOCK_MASK
) + 2;
91 static const intel_limit_t intel_limits_i8xx_dac
= {
92 .dot
= { .min
= 25000, .max
= 350000 },
93 .vco
= { .min
= 930000, .max
= 1400000 },
94 .n
= { .min
= 3, .max
= 16 },
95 .m
= { .min
= 96, .max
= 140 },
96 .m1
= { .min
= 18, .max
= 26 },
97 .m2
= { .min
= 6, .max
= 16 },
98 .p
= { .min
= 4, .max
= 128 },
99 .p1
= { .min
= 2, .max
= 33 },
100 .p2
= { .dot_limit
= 165000,
101 .p2_slow
= 4, .p2_fast
= 2 },
104 static const intel_limit_t intel_limits_i8xx_dvo
= {
105 .dot
= { .min
= 25000, .max
= 350000 },
106 .vco
= { .min
= 930000, .max
= 1400000 },
107 .n
= { .min
= 3, .max
= 16 },
108 .m
= { .min
= 96, .max
= 140 },
109 .m1
= { .min
= 18, .max
= 26 },
110 .m2
= { .min
= 6, .max
= 16 },
111 .p
= { .min
= 4, .max
= 128 },
112 .p1
= { .min
= 2, .max
= 33 },
113 .p2
= { .dot_limit
= 165000,
114 .p2_slow
= 4, .p2_fast
= 4 },
117 static const intel_limit_t intel_limits_i8xx_lvds
= {
118 .dot
= { .min
= 25000, .max
= 350000 },
119 .vco
= { .min
= 930000, .max
= 1400000 },
120 .n
= { .min
= 3, .max
= 16 },
121 .m
= { .min
= 96, .max
= 140 },
122 .m1
= { .min
= 18, .max
= 26 },
123 .m2
= { .min
= 6, .max
= 16 },
124 .p
= { .min
= 4, .max
= 128 },
125 .p1
= { .min
= 1, .max
= 6 },
126 .p2
= { .dot_limit
= 165000,
127 .p2_slow
= 14, .p2_fast
= 7 },
130 static const intel_limit_t intel_limits_i9xx_sdvo
= {
131 .dot
= { .min
= 20000, .max
= 400000 },
132 .vco
= { .min
= 1400000, .max
= 2800000 },
133 .n
= { .min
= 1, .max
= 6 },
134 .m
= { .min
= 70, .max
= 120 },
135 .m1
= { .min
= 8, .max
= 18 },
136 .m2
= { .min
= 3, .max
= 7 },
137 .p
= { .min
= 5, .max
= 80 },
138 .p1
= { .min
= 1, .max
= 8 },
139 .p2
= { .dot_limit
= 200000,
140 .p2_slow
= 10, .p2_fast
= 5 },
143 static const intel_limit_t intel_limits_i9xx_lvds
= {
144 .dot
= { .min
= 20000, .max
= 400000 },
145 .vco
= { .min
= 1400000, .max
= 2800000 },
146 .n
= { .min
= 1, .max
= 6 },
147 .m
= { .min
= 70, .max
= 120 },
148 .m1
= { .min
= 8, .max
= 18 },
149 .m2
= { .min
= 3, .max
= 7 },
150 .p
= { .min
= 7, .max
= 98 },
151 .p1
= { .min
= 1, .max
= 8 },
152 .p2
= { .dot_limit
= 112000,
153 .p2_slow
= 14, .p2_fast
= 7 },
157 static const intel_limit_t intel_limits_g4x_sdvo
= {
158 .dot
= { .min
= 25000, .max
= 270000 },
159 .vco
= { .min
= 1750000, .max
= 3500000},
160 .n
= { .min
= 1, .max
= 4 },
161 .m
= { .min
= 104, .max
= 138 },
162 .m1
= { .min
= 17, .max
= 23 },
163 .m2
= { .min
= 5, .max
= 11 },
164 .p
= { .min
= 10, .max
= 30 },
165 .p1
= { .min
= 1, .max
= 3},
166 .p2
= { .dot_limit
= 270000,
172 static const intel_limit_t intel_limits_g4x_hdmi
= {
173 .dot
= { .min
= 22000, .max
= 400000 },
174 .vco
= { .min
= 1750000, .max
= 3500000},
175 .n
= { .min
= 1, .max
= 4 },
176 .m
= { .min
= 104, .max
= 138 },
177 .m1
= { .min
= 16, .max
= 23 },
178 .m2
= { .min
= 5, .max
= 11 },
179 .p
= { .min
= 5, .max
= 80 },
180 .p1
= { .min
= 1, .max
= 8},
181 .p2
= { .dot_limit
= 165000,
182 .p2_slow
= 10, .p2_fast
= 5 },
185 static const intel_limit_t intel_limits_g4x_single_channel_lvds
= {
186 .dot
= { .min
= 20000, .max
= 115000 },
187 .vco
= { .min
= 1750000, .max
= 3500000 },
188 .n
= { .min
= 1, .max
= 3 },
189 .m
= { .min
= 104, .max
= 138 },
190 .m1
= { .min
= 17, .max
= 23 },
191 .m2
= { .min
= 5, .max
= 11 },
192 .p
= { .min
= 28, .max
= 112 },
193 .p1
= { .min
= 2, .max
= 8 },
194 .p2
= { .dot_limit
= 0,
195 .p2_slow
= 14, .p2_fast
= 14
199 static const intel_limit_t intel_limits_g4x_dual_channel_lvds
= {
200 .dot
= { .min
= 80000, .max
= 224000 },
201 .vco
= { .min
= 1750000, .max
= 3500000 },
202 .n
= { .min
= 1, .max
= 3 },
203 .m
= { .min
= 104, .max
= 138 },
204 .m1
= { .min
= 17, .max
= 23 },
205 .m2
= { .min
= 5, .max
= 11 },
206 .p
= { .min
= 14, .max
= 42 },
207 .p1
= { .min
= 2, .max
= 6 },
208 .p2
= { .dot_limit
= 0,
209 .p2_slow
= 7, .p2_fast
= 7
213 static const intel_limit_t intel_limits_pineview_sdvo
= {
214 .dot
= { .min
= 20000, .max
= 400000},
215 .vco
= { .min
= 1700000, .max
= 3500000 },
216 /* Pineview's Ncounter is a ring counter */
217 .n
= { .min
= 3, .max
= 6 },
218 .m
= { .min
= 2, .max
= 256 },
219 /* Pineview only has one combined m divider, which we treat as m2. */
220 .m1
= { .min
= 0, .max
= 0 },
221 .m2
= { .min
= 0, .max
= 254 },
222 .p
= { .min
= 5, .max
= 80 },
223 .p1
= { .min
= 1, .max
= 8 },
224 .p2
= { .dot_limit
= 200000,
225 .p2_slow
= 10, .p2_fast
= 5 },
228 static const intel_limit_t intel_limits_pineview_lvds
= {
229 .dot
= { .min
= 20000, .max
= 400000 },
230 .vco
= { .min
= 1700000, .max
= 3500000 },
231 .n
= { .min
= 3, .max
= 6 },
232 .m
= { .min
= 2, .max
= 256 },
233 .m1
= { .min
= 0, .max
= 0 },
234 .m2
= { .min
= 0, .max
= 254 },
235 .p
= { .min
= 7, .max
= 112 },
236 .p1
= { .min
= 1, .max
= 8 },
237 .p2
= { .dot_limit
= 112000,
238 .p2_slow
= 14, .p2_fast
= 14 },
241 /* Ironlake / Sandybridge
243 * We calculate clock using (register_value + 2) for N/M1/M2, so here
244 * the range value for them is (actual_value - 2).
246 static const intel_limit_t intel_limits_ironlake_dac
= {
247 .dot
= { .min
= 25000, .max
= 350000 },
248 .vco
= { .min
= 1760000, .max
= 3510000 },
249 .n
= { .min
= 1, .max
= 5 },
250 .m
= { .min
= 79, .max
= 127 },
251 .m1
= { .min
= 12, .max
= 22 },
252 .m2
= { .min
= 5, .max
= 9 },
253 .p
= { .min
= 5, .max
= 80 },
254 .p1
= { .min
= 1, .max
= 8 },
255 .p2
= { .dot_limit
= 225000,
256 .p2_slow
= 10, .p2_fast
= 5 },
259 static const intel_limit_t intel_limits_ironlake_single_lvds
= {
260 .dot
= { .min
= 25000, .max
= 350000 },
261 .vco
= { .min
= 1760000, .max
= 3510000 },
262 .n
= { .min
= 1, .max
= 3 },
263 .m
= { .min
= 79, .max
= 118 },
264 .m1
= { .min
= 12, .max
= 22 },
265 .m2
= { .min
= 5, .max
= 9 },
266 .p
= { .min
= 28, .max
= 112 },
267 .p1
= { .min
= 2, .max
= 8 },
268 .p2
= { .dot_limit
= 225000,
269 .p2_slow
= 14, .p2_fast
= 14 },
272 static const intel_limit_t intel_limits_ironlake_dual_lvds
= {
273 .dot
= { .min
= 25000, .max
= 350000 },
274 .vco
= { .min
= 1760000, .max
= 3510000 },
275 .n
= { .min
= 1, .max
= 3 },
276 .m
= { .min
= 79, .max
= 127 },
277 .m1
= { .min
= 12, .max
= 22 },
278 .m2
= { .min
= 5, .max
= 9 },
279 .p
= { .min
= 14, .max
= 56 },
280 .p1
= { .min
= 2, .max
= 8 },
281 .p2
= { .dot_limit
= 225000,
282 .p2_slow
= 7, .p2_fast
= 7 },
285 /* LVDS 100mhz refclk limits. */
286 static const intel_limit_t intel_limits_ironlake_single_lvds_100m
= {
287 .dot
= { .min
= 25000, .max
= 350000 },
288 .vco
= { .min
= 1760000, .max
= 3510000 },
289 .n
= { .min
= 1, .max
= 2 },
290 .m
= { .min
= 79, .max
= 126 },
291 .m1
= { .min
= 12, .max
= 22 },
292 .m2
= { .min
= 5, .max
= 9 },
293 .p
= { .min
= 28, .max
= 112 },
294 .p1
= { .min
= 2, .max
= 8 },
295 .p2
= { .dot_limit
= 225000,
296 .p2_slow
= 14, .p2_fast
= 14 },
299 static const intel_limit_t intel_limits_ironlake_dual_lvds_100m
= {
300 .dot
= { .min
= 25000, .max
= 350000 },
301 .vco
= { .min
= 1760000, .max
= 3510000 },
302 .n
= { .min
= 1, .max
= 3 },
303 .m
= { .min
= 79, .max
= 126 },
304 .m1
= { .min
= 12, .max
= 22 },
305 .m2
= { .min
= 5, .max
= 9 },
306 .p
= { .min
= 14, .max
= 42 },
307 .p1
= { .min
= 2, .max
= 6 },
308 .p2
= { .dot_limit
= 225000,
309 .p2_slow
= 7, .p2_fast
= 7 },
312 static const intel_limit_t intel_limits_vlv
= {
314 * These are the data rate limits (measured in fast clocks)
315 * since those are the strictest limits we have. The fast
316 * clock and actual rate limits are more relaxed, so checking
317 * them would make no difference.
319 .dot
= { .min
= 25000 * 5, .max
= 270000 * 5 },
320 .vco
= { .min
= 4000000, .max
= 6000000 },
321 .n
= { .min
= 1, .max
= 7 },
322 .m1
= { .min
= 2, .max
= 3 },
323 .m2
= { .min
= 11, .max
= 156 },
324 .p1
= { .min
= 2, .max
= 3 },
325 .p2
= { .p2_slow
= 2, .p2_fast
= 20 }, /* slow=min, fast=max */
328 static void vlv_clock(int refclk
, intel_clock_t
*clock
)
330 clock
->m
= clock
->m1
* clock
->m2
;
331 clock
->p
= clock
->p1
* clock
->p2
;
332 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
);
333 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
337 * Returns whether any output on the specified pipe is of the specified type
339 static bool intel_pipe_has_type(struct drm_crtc
*crtc
, int type
)
341 struct drm_device
*dev
= crtc
->dev
;
342 struct intel_encoder
*encoder
;
344 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
345 if (encoder
->type
== type
)
351 static const intel_limit_t
*intel_ironlake_limit(struct drm_crtc
*crtc
,
354 struct drm_device
*dev
= crtc
->dev
;
355 const intel_limit_t
*limit
;
357 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
358 if (intel_is_dual_link_lvds(dev
)) {
359 if (refclk
== 100000)
360 limit
= &intel_limits_ironlake_dual_lvds_100m
;
362 limit
= &intel_limits_ironlake_dual_lvds
;
364 if (refclk
== 100000)
365 limit
= &intel_limits_ironlake_single_lvds_100m
;
367 limit
= &intel_limits_ironlake_single_lvds
;
370 limit
= &intel_limits_ironlake_dac
;
375 static const intel_limit_t
*intel_g4x_limit(struct drm_crtc
*crtc
)
377 struct drm_device
*dev
= crtc
->dev
;
378 const intel_limit_t
*limit
;
380 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
381 if (intel_is_dual_link_lvds(dev
))
382 limit
= &intel_limits_g4x_dual_channel_lvds
;
384 limit
= &intel_limits_g4x_single_channel_lvds
;
385 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
) ||
386 intel_pipe_has_type(crtc
, INTEL_OUTPUT_ANALOG
)) {
387 limit
= &intel_limits_g4x_hdmi
;
388 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_SDVO
)) {
389 limit
= &intel_limits_g4x_sdvo
;
390 } else /* The option is for other outputs */
391 limit
= &intel_limits_i9xx_sdvo
;
396 static const intel_limit_t
*intel_limit(struct drm_crtc
*crtc
, int refclk
)
398 struct drm_device
*dev
= crtc
->dev
;
399 const intel_limit_t
*limit
;
401 if (HAS_PCH_SPLIT(dev
))
402 limit
= intel_ironlake_limit(crtc
, refclk
);
403 else if (IS_G4X(dev
)) {
404 limit
= intel_g4x_limit(crtc
);
405 } else if (IS_PINEVIEW(dev
)) {
406 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
407 limit
= &intel_limits_pineview_lvds
;
409 limit
= &intel_limits_pineview_sdvo
;
410 } else if (IS_VALLEYVIEW(dev
)) {
411 limit
= &intel_limits_vlv
;
412 } else if (!IS_GEN2(dev
)) {
413 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
414 limit
= &intel_limits_i9xx_lvds
;
416 limit
= &intel_limits_i9xx_sdvo
;
418 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
419 limit
= &intel_limits_i8xx_lvds
;
420 else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DVO
))
421 limit
= &intel_limits_i8xx_dvo
;
423 limit
= &intel_limits_i8xx_dac
;
428 /* m1 is reserved as 0 in Pineview, n is a ring counter */
429 static void pineview_clock(int refclk
, intel_clock_t
*clock
)
431 clock
->m
= clock
->m2
+ 2;
432 clock
->p
= clock
->p1
* clock
->p2
;
433 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
);
434 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
437 static uint32_t i9xx_dpll_compute_m(struct dpll
*dpll
)
439 return 5 * (dpll
->m1
+ 2) + (dpll
->m2
+ 2);
442 static void i9xx_clock(int refclk
, intel_clock_t
*clock
)
444 clock
->m
= i9xx_dpll_compute_m(clock
);
445 clock
->p
= clock
->p1
* clock
->p2
;
446 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
+ 2);
447 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
450 #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
452 * Returns whether the given set of divisors are valid for a given refclk with
453 * the given connectors.
456 static bool intel_PLL_is_valid(struct drm_device
*dev
,
457 const intel_limit_t
*limit
,
458 const intel_clock_t
*clock
)
460 if (clock
->n
< limit
->n
.min
|| limit
->n
.max
< clock
->n
)
461 INTELPllInvalid("n out of range\n");
462 if (clock
->p1
< limit
->p1
.min
|| limit
->p1
.max
< clock
->p1
)
463 INTELPllInvalid("p1 out of range\n");
464 if (clock
->m2
< limit
->m2
.min
|| limit
->m2
.max
< clock
->m2
)
465 INTELPllInvalid("m2 out of range\n");
466 if (clock
->m1
< limit
->m1
.min
|| limit
->m1
.max
< clock
->m1
)
467 INTELPllInvalid("m1 out of range\n");
469 if (!IS_PINEVIEW(dev
) && !IS_VALLEYVIEW(dev
))
470 if (clock
->m1
<= clock
->m2
)
471 INTELPllInvalid("m1 <= m2\n");
473 if (!IS_VALLEYVIEW(dev
)) {
474 if (clock
->p
< limit
->p
.min
|| limit
->p
.max
< clock
->p
)
475 INTELPllInvalid("p out of range\n");
476 if (clock
->m
< limit
->m
.min
|| limit
->m
.max
< clock
->m
)
477 INTELPllInvalid("m out of range\n");
480 if (clock
->vco
< limit
->vco
.min
|| limit
->vco
.max
< clock
->vco
)
481 INTELPllInvalid("vco out of range\n");
482 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
483 * connector, etc., rather than just a single range.
485 if (clock
->dot
< limit
->dot
.min
|| limit
->dot
.max
< clock
->dot
)
486 INTELPllInvalid("dot out of range\n");
492 i9xx_find_best_dpll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
493 int target
, int refclk
, intel_clock_t
*match_clock
,
494 intel_clock_t
*best_clock
)
496 struct drm_device
*dev
= crtc
->dev
;
500 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
502 * For LVDS just rely on its current settings for dual-channel.
503 * We haven't figured out how to reliably set up different
504 * single/dual channel state, if we even can.
506 if (intel_is_dual_link_lvds(dev
))
507 clock
.p2
= limit
->p2
.p2_fast
;
509 clock
.p2
= limit
->p2
.p2_slow
;
511 if (target
< limit
->p2
.dot_limit
)
512 clock
.p2
= limit
->p2
.p2_slow
;
514 clock
.p2
= limit
->p2
.p2_fast
;
517 memset(best_clock
, 0, sizeof(*best_clock
));
519 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
521 for (clock
.m2
= limit
->m2
.min
;
522 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
523 if (clock
.m2
>= clock
.m1
)
525 for (clock
.n
= limit
->n
.min
;
526 clock
.n
<= limit
->n
.max
; clock
.n
++) {
527 for (clock
.p1
= limit
->p1
.min
;
528 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
531 i9xx_clock(refclk
, &clock
);
532 if (!intel_PLL_is_valid(dev
, limit
,
536 clock
.p
!= match_clock
->p
)
539 this_err
= abs(clock
.dot
- target
);
540 if (this_err
< err
) {
549 return (err
!= target
);
553 pnv_find_best_dpll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
554 int target
, int refclk
, intel_clock_t
*match_clock
,
555 intel_clock_t
*best_clock
)
557 struct drm_device
*dev
= crtc
->dev
;
561 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
563 * For LVDS just rely on its current settings for dual-channel.
564 * We haven't figured out how to reliably set up different
565 * single/dual channel state, if we even can.
567 if (intel_is_dual_link_lvds(dev
))
568 clock
.p2
= limit
->p2
.p2_fast
;
570 clock
.p2
= limit
->p2
.p2_slow
;
572 if (target
< limit
->p2
.dot_limit
)
573 clock
.p2
= limit
->p2
.p2_slow
;
575 clock
.p2
= limit
->p2
.p2_fast
;
578 memset(best_clock
, 0, sizeof(*best_clock
));
580 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
582 for (clock
.m2
= limit
->m2
.min
;
583 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
584 for (clock
.n
= limit
->n
.min
;
585 clock
.n
<= limit
->n
.max
; clock
.n
++) {
586 for (clock
.p1
= limit
->p1
.min
;
587 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
590 pineview_clock(refclk
, &clock
);
591 if (!intel_PLL_is_valid(dev
, limit
,
595 clock
.p
!= match_clock
->p
)
598 this_err
= abs(clock
.dot
- target
);
599 if (this_err
< err
) {
608 return (err
!= target
);
612 g4x_find_best_dpll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
613 int target
, int refclk
, intel_clock_t
*match_clock
,
614 intel_clock_t
*best_clock
)
616 struct drm_device
*dev
= crtc
->dev
;
620 /* approximately equals target * 0.00585 */
621 int err_most
= (target
>> 8) + (target
>> 9);
624 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
625 if (intel_is_dual_link_lvds(dev
))
626 clock
.p2
= limit
->p2
.p2_fast
;
628 clock
.p2
= limit
->p2
.p2_slow
;
630 if (target
< limit
->p2
.dot_limit
)
631 clock
.p2
= limit
->p2
.p2_slow
;
633 clock
.p2
= limit
->p2
.p2_fast
;
636 memset(best_clock
, 0, sizeof(*best_clock
));
637 max_n
= limit
->n
.max
;
638 /* based on hardware requirement, prefer smaller n to precision */
639 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
640 /* based on hardware requirement, prefere larger m1,m2 */
641 for (clock
.m1
= limit
->m1
.max
;
642 clock
.m1
>= limit
->m1
.min
; clock
.m1
--) {
643 for (clock
.m2
= limit
->m2
.max
;
644 clock
.m2
>= limit
->m2
.min
; clock
.m2
--) {
645 for (clock
.p1
= limit
->p1
.max
;
646 clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
649 i9xx_clock(refclk
, &clock
);
650 if (!intel_PLL_is_valid(dev
, limit
,
654 this_err
= abs(clock
.dot
- target
);
655 if (this_err
< err_most
) {
669 vlv_find_best_dpll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
670 int target
, int refclk
, intel_clock_t
*match_clock
,
671 intel_clock_t
*best_clock
)
673 struct drm_device
*dev
= crtc
->dev
;
675 unsigned int bestppm
= 1000000;
676 /* min update 19.2 MHz */
677 int max_n
= min(limit
->n
.max
, refclk
/ 19200);
680 target
*= 5; /* fast clock */
682 memset(best_clock
, 0, sizeof(*best_clock
));
684 /* based on hardware requirement, prefer smaller n to precision */
685 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
686 for (clock
.p1
= limit
->p1
.max
; clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
687 for (clock
.p2
= limit
->p2
.p2_fast
; clock
.p2
>= limit
->p2
.p2_slow
;
688 clock
.p2
-= clock
.p2
> 10 ? 2 : 1) {
689 clock
.p
= clock
.p1
* clock
.p2
;
690 /* based on hardware requirement, prefer bigger m1,m2 values */
691 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
; clock
.m1
++) {
692 unsigned int ppm
, diff
;
694 clock
.m2
= DIV_ROUND_CLOSEST(target
* clock
.p
* clock
.n
,
697 vlv_clock(refclk
, &clock
);
699 if (!intel_PLL_is_valid(dev
, limit
,
703 diff
= abs(clock
.dot
- target
);
704 ppm
= div_u64(1000000ULL * diff
, target
);
706 if (ppm
< 100 && clock
.p
> best_clock
->p
) {
712 if (bestppm
>= 10 && ppm
< bestppm
- 10) {
725 bool intel_crtc_active(struct drm_crtc
*crtc
)
727 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
729 /* Be paranoid as we can arrive here with only partial
730 * state retrieved from the hardware during setup.
732 * We can ditch the adjusted_mode.crtc_clock check as soon
733 * as Haswell has gained clock readout/fastboot support.
735 * We can ditch the crtc->fb check as soon as we can
736 * properly reconstruct framebuffers.
738 return intel_crtc
->active
&& crtc
->fb
&&
739 intel_crtc
->config
.adjusted_mode
.crtc_clock
;
742 enum transcoder
intel_pipe_to_cpu_transcoder(struct drm_i915_private
*dev_priv
,
745 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
746 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
748 return intel_crtc
->config
.cpu_transcoder
;
751 static void ironlake_wait_for_vblank(struct drm_device
*dev
, int pipe
)
753 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
754 u32 frame
, frame_reg
= PIPEFRAME(pipe
);
756 frame
= I915_READ(frame_reg
);
758 if (wait_for(I915_READ_NOTRACE(frame_reg
) != frame
, 50))
759 DRM_DEBUG_KMS("vblank wait timed out\n");
763 * intel_wait_for_vblank - wait for vblank on a given pipe
765 * @pipe: pipe to wait for
767 * Wait for vblank to occur on a given pipe. Needed for various bits of
770 void intel_wait_for_vblank(struct drm_device
*dev
, int pipe
)
772 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
773 int pipestat_reg
= PIPESTAT(pipe
);
775 if (INTEL_INFO(dev
)->gen
>= 5) {
776 ironlake_wait_for_vblank(dev
, pipe
);
780 /* Clear existing vblank status. Note this will clear any other
781 * sticky status fields as well.
783 * This races with i915_driver_irq_handler() with the result
784 * that either function could miss a vblank event. Here it is not
785 * fatal, as we will either wait upon the next vblank interrupt or
786 * timeout. Generally speaking intel_wait_for_vblank() is only
787 * called during modeset at which time the GPU should be idle and
788 * should *not* be performing page flips and thus not waiting on
790 * Currently, the result of us stealing a vblank from the irq
791 * handler is that a single frame will be skipped during swapbuffers.
793 I915_WRITE(pipestat_reg
,
794 I915_READ(pipestat_reg
) | PIPE_VBLANK_INTERRUPT_STATUS
);
796 /* Wait for vblank interrupt bit to set */
797 if (wait_for(I915_READ(pipestat_reg
) &
798 PIPE_VBLANK_INTERRUPT_STATUS
,
800 DRM_DEBUG_KMS("vblank wait timed out\n");
803 static bool pipe_dsl_stopped(struct drm_device
*dev
, enum pipe pipe
)
805 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
806 u32 reg
= PIPEDSL(pipe
);
811 line_mask
= DSL_LINEMASK_GEN2
;
813 line_mask
= DSL_LINEMASK_GEN3
;
815 line1
= I915_READ(reg
) & line_mask
;
817 line2
= I915_READ(reg
) & line_mask
;
819 return line1
== line2
;
823 * intel_wait_for_pipe_off - wait for pipe to turn off
825 * @pipe: pipe to wait for
827 * After disabling a pipe, we can't wait for vblank in the usual way,
828 * spinning on the vblank interrupt status bit, since we won't actually
829 * see an interrupt when the pipe is disabled.
832 * wait for the pipe register state bit to turn off
835 * wait for the display line value to settle (it usually
836 * ends up stopping at the start of the next frame).
839 void intel_wait_for_pipe_off(struct drm_device
*dev
, int pipe
)
841 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
842 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
845 if (INTEL_INFO(dev
)->gen
>= 4) {
846 int reg
= PIPECONF(cpu_transcoder
);
848 /* Wait for the Pipe State to go off */
849 if (wait_for((I915_READ(reg
) & I965_PIPECONF_ACTIVE
) == 0,
851 WARN(1, "pipe_off wait timed out\n");
853 /* Wait for the display line to settle */
854 if (wait_for(pipe_dsl_stopped(dev
, pipe
), 100))
855 WARN(1, "pipe_off wait timed out\n");
860 * ibx_digital_port_connected - is the specified port connected?
861 * @dev_priv: i915 private structure
862 * @port: the port to test
864 * Returns true if @port is connected, false otherwise.
866 bool ibx_digital_port_connected(struct drm_i915_private
*dev_priv
,
867 struct intel_digital_port
*port
)
871 if (HAS_PCH_IBX(dev_priv
->dev
)) {
874 bit
= SDE_PORTB_HOTPLUG
;
877 bit
= SDE_PORTC_HOTPLUG
;
880 bit
= SDE_PORTD_HOTPLUG
;
888 bit
= SDE_PORTB_HOTPLUG_CPT
;
891 bit
= SDE_PORTC_HOTPLUG_CPT
;
894 bit
= SDE_PORTD_HOTPLUG_CPT
;
901 return I915_READ(SDEISR
) & bit
;
904 static const char *state_string(bool enabled
)
906 return enabled
? "on" : "off";
909 /* Only for pre-ILK configs */
910 void assert_pll(struct drm_i915_private
*dev_priv
,
911 enum pipe pipe
, bool state
)
918 val
= I915_READ(reg
);
919 cur_state
= !!(val
& DPLL_VCO_ENABLE
);
920 WARN(cur_state
!= state
,
921 "PLL state assertion failure (expected %s, current %s)\n",
922 state_string(state
), state_string(cur_state
));
925 /* XXX: the dsi pll is shared between MIPI DSI ports */
926 static void assert_dsi_pll(struct drm_i915_private
*dev_priv
, bool state
)
931 mutex_lock(&dev_priv
->dpio_lock
);
932 val
= vlv_cck_read(dev_priv
, CCK_REG_DSI_PLL_CONTROL
);
933 mutex_unlock(&dev_priv
->dpio_lock
);
935 cur_state
= val
& DSI_PLL_VCO_EN
;
936 WARN(cur_state
!= state
,
937 "DSI PLL state assertion failure (expected %s, current %s)\n",
938 state_string(state
), state_string(cur_state
));
940 #define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true)
941 #define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false)
943 struct intel_shared_dpll
*
944 intel_crtc_to_shared_dpll(struct intel_crtc
*crtc
)
946 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
948 if (crtc
->config
.shared_dpll
< 0)
951 return &dev_priv
->shared_dplls
[crtc
->config
.shared_dpll
];
955 void assert_shared_dpll(struct drm_i915_private
*dev_priv
,
956 struct intel_shared_dpll
*pll
,
960 struct intel_dpll_hw_state hw_state
;
962 if (HAS_PCH_LPT(dev_priv
->dev
)) {
963 DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n");
968 "asserting DPLL %s with no DPLL\n", state_string(state
)))
971 cur_state
= pll
->get_hw_state(dev_priv
, pll
, &hw_state
);
972 WARN(cur_state
!= state
,
973 "%s assertion failure (expected %s, current %s)\n",
974 pll
->name
, state_string(state
), state_string(cur_state
));
977 static void assert_fdi_tx(struct drm_i915_private
*dev_priv
,
978 enum pipe pipe
, bool state
)
983 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
986 if (HAS_DDI(dev_priv
->dev
)) {
987 /* DDI does not have a specific FDI_TX register */
988 reg
= TRANS_DDI_FUNC_CTL(cpu_transcoder
);
989 val
= I915_READ(reg
);
990 cur_state
= !!(val
& TRANS_DDI_FUNC_ENABLE
);
992 reg
= FDI_TX_CTL(pipe
);
993 val
= I915_READ(reg
);
994 cur_state
= !!(val
& FDI_TX_ENABLE
);
996 WARN(cur_state
!= state
,
997 "FDI TX state assertion failure (expected %s, current %s)\n",
998 state_string(state
), state_string(cur_state
));
1000 #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
1001 #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
1003 static void assert_fdi_rx(struct drm_i915_private
*dev_priv
,
1004 enum pipe pipe
, bool state
)
1010 reg
= FDI_RX_CTL(pipe
);
1011 val
= I915_READ(reg
);
1012 cur_state
= !!(val
& FDI_RX_ENABLE
);
1013 WARN(cur_state
!= state
,
1014 "FDI RX state assertion failure (expected %s, current %s)\n",
1015 state_string(state
), state_string(cur_state
));
1017 #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
1018 #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
1020 static void assert_fdi_tx_pll_enabled(struct drm_i915_private
*dev_priv
,
1026 /* ILK FDI PLL is always enabled */
1027 if (dev_priv
->info
->gen
== 5)
1030 /* On Haswell, DDI ports are responsible for the FDI PLL setup */
1031 if (HAS_DDI(dev_priv
->dev
))
1034 reg
= FDI_TX_CTL(pipe
);
1035 val
= I915_READ(reg
);
1036 WARN(!(val
& FDI_TX_PLL_ENABLE
), "FDI TX PLL assertion failure, should be active but is disabled\n");
1039 void assert_fdi_rx_pll(struct drm_i915_private
*dev_priv
,
1040 enum pipe pipe
, bool state
)
1046 reg
= FDI_RX_CTL(pipe
);
1047 val
= I915_READ(reg
);
1048 cur_state
= !!(val
& FDI_RX_PLL_ENABLE
);
1049 WARN(cur_state
!= state
,
1050 "FDI RX PLL assertion failure (expected %s, current %s)\n",
1051 state_string(state
), state_string(cur_state
));
1054 static void assert_panel_unlocked(struct drm_i915_private
*dev_priv
,
1057 int pp_reg
, lvds_reg
;
1059 enum pipe panel_pipe
= PIPE_A
;
1062 if (HAS_PCH_SPLIT(dev_priv
->dev
)) {
1063 pp_reg
= PCH_PP_CONTROL
;
1064 lvds_reg
= PCH_LVDS
;
1066 pp_reg
= PP_CONTROL
;
1070 val
= I915_READ(pp_reg
);
1071 if (!(val
& PANEL_POWER_ON
) ||
1072 ((val
& PANEL_UNLOCK_REGS
) == PANEL_UNLOCK_REGS
))
1075 if (I915_READ(lvds_reg
) & LVDS_PIPEB_SELECT
)
1076 panel_pipe
= PIPE_B
;
1078 WARN(panel_pipe
== pipe
&& locked
,
1079 "panel assertion failure, pipe %c regs locked\n",
1083 static void assert_cursor(struct drm_i915_private
*dev_priv
,
1084 enum pipe pipe
, bool state
)
1086 struct drm_device
*dev
= dev_priv
->dev
;
1089 if (IS_IVYBRIDGE(dev
) || IS_HASWELL(dev
))
1090 cur_state
= I915_READ(CURCNTR_IVB(pipe
)) & CURSOR_MODE
;
1091 else if (IS_845G(dev
) || IS_I865G(dev
))
1092 cur_state
= I915_READ(_CURACNTR
) & CURSOR_ENABLE
;
1094 cur_state
= I915_READ(CURCNTR(pipe
)) & CURSOR_MODE
;
1096 WARN(cur_state
!= state
,
1097 "cursor on pipe %c assertion failure (expected %s, current %s)\n",
1098 pipe_name(pipe
), state_string(state
), state_string(cur_state
));
1100 #define assert_cursor_enabled(d, p) assert_cursor(d, p, true)
1101 #define assert_cursor_disabled(d, p) assert_cursor(d, p, false)
1103 void assert_pipe(struct drm_i915_private
*dev_priv
,
1104 enum pipe pipe
, bool state
)
1109 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1112 /* if we need the pipe A quirk it must be always on */
1113 if (pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
)
1116 if (!intel_display_power_enabled(dev_priv
->dev
,
1117 POWER_DOMAIN_TRANSCODER(cpu_transcoder
))) {
1120 reg
= PIPECONF(cpu_transcoder
);
1121 val
= I915_READ(reg
);
1122 cur_state
= !!(val
& PIPECONF_ENABLE
);
1125 WARN(cur_state
!= state
,
1126 "pipe %c assertion failure (expected %s, current %s)\n",
1127 pipe_name(pipe
), state_string(state
), state_string(cur_state
));
1130 static void assert_plane(struct drm_i915_private
*dev_priv
,
1131 enum plane plane
, bool state
)
1137 reg
= DSPCNTR(plane
);
1138 val
= I915_READ(reg
);
1139 cur_state
= !!(val
& DISPLAY_PLANE_ENABLE
);
1140 WARN(cur_state
!= state
,
1141 "plane %c assertion failure (expected %s, current %s)\n",
1142 plane_name(plane
), state_string(state
), state_string(cur_state
));
1145 #define assert_plane_enabled(d, p) assert_plane(d, p, true)
1146 #define assert_plane_disabled(d, p) assert_plane(d, p, false)
1148 static void assert_planes_disabled(struct drm_i915_private
*dev_priv
,
1151 struct drm_device
*dev
= dev_priv
->dev
;
1156 /* Primary planes are fixed to pipes on gen4+ */
1157 if (INTEL_INFO(dev
)->gen
>= 4) {
1158 reg
= DSPCNTR(pipe
);
1159 val
= I915_READ(reg
);
1160 WARN((val
& DISPLAY_PLANE_ENABLE
),
1161 "plane %c assertion failure, should be disabled but not\n",
1166 /* Need to check both planes against the pipe */
1169 val
= I915_READ(reg
);
1170 cur_pipe
= (val
& DISPPLANE_SEL_PIPE_MASK
) >>
1171 DISPPLANE_SEL_PIPE_SHIFT
;
1172 WARN((val
& DISPLAY_PLANE_ENABLE
) && pipe
== cur_pipe
,
1173 "plane %c assertion failure, should be off on pipe %c but is still active\n",
1174 plane_name(i
), pipe_name(pipe
));
1178 static void assert_sprites_disabled(struct drm_i915_private
*dev_priv
,
1181 struct drm_device
*dev
= dev_priv
->dev
;
1185 if (IS_VALLEYVIEW(dev
)) {
1186 for (i
= 0; i
< dev_priv
->num_plane
; i
++) {
1187 reg
= SPCNTR(pipe
, i
);
1188 val
= I915_READ(reg
);
1189 WARN((val
& SP_ENABLE
),
1190 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1191 sprite_name(pipe
, i
), pipe_name(pipe
));
1193 } else if (INTEL_INFO(dev
)->gen
>= 7) {
1195 val
= I915_READ(reg
);
1196 WARN((val
& SPRITE_ENABLE
),
1197 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1198 plane_name(pipe
), pipe_name(pipe
));
1199 } else if (INTEL_INFO(dev
)->gen
>= 5) {
1200 reg
= DVSCNTR(pipe
);
1201 val
= I915_READ(reg
);
1202 WARN((val
& DVS_ENABLE
),
1203 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1204 plane_name(pipe
), pipe_name(pipe
));
1208 static void assert_pch_refclk_enabled(struct drm_i915_private
*dev_priv
)
1213 if (HAS_PCH_LPT(dev_priv
->dev
)) {
1214 DRM_DEBUG_DRIVER("LPT does not has PCH refclk, skipping check\n");
1218 val
= I915_READ(PCH_DREF_CONTROL
);
1219 enabled
= !!(val
& (DREF_SSC_SOURCE_MASK
| DREF_NONSPREAD_SOURCE_MASK
|
1220 DREF_SUPERSPREAD_SOURCE_MASK
));
1221 WARN(!enabled
, "PCH refclk assertion failure, should be active but is disabled\n");
1224 static void assert_pch_transcoder_disabled(struct drm_i915_private
*dev_priv
,
1231 reg
= PCH_TRANSCONF(pipe
);
1232 val
= I915_READ(reg
);
1233 enabled
= !!(val
& TRANS_ENABLE
);
1235 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1239 static bool dp_pipe_enabled(struct drm_i915_private
*dev_priv
,
1240 enum pipe pipe
, u32 port_sel
, u32 val
)
1242 if ((val
& DP_PORT_EN
) == 0)
1245 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1246 u32 trans_dp_ctl_reg
= TRANS_DP_CTL(pipe
);
1247 u32 trans_dp_ctl
= I915_READ(trans_dp_ctl_reg
);
1248 if ((trans_dp_ctl
& TRANS_DP_PORT_SEL_MASK
) != port_sel
)
1251 if ((val
& DP_PIPE_MASK
) != (pipe
<< 30))
1257 static bool hdmi_pipe_enabled(struct drm_i915_private
*dev_priv
,
1258 enum pipe pipe
, u32 val
)
1260 if ((val
& SDVO_ENABLE
) == 0)
1263 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1264 if ((val
& SDVO_PIPE_SEL_MASK_CPT
) != SDVO_PIPE_SEL_CPT(pipe
))
1267 if ((val
& SDVO_PIPE_SEL_MASK
) != SDVO_PIPE_SEL(pipe
))
1273 static bool lvds_pipe_enabled(struct drm_i915_private
*dev_priv
,
1274 enum pipe pipe
, u32 val
)
1276 if ((val
& LVDS_PORT_EN
) == 0)
1279 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1280 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1283 if ((val
& LVDS_PIPE_MASK
) != LVDS_PIPE(pipe
))
1289 static bool adpa_pipe_enabled(struct drm_i915_private
*dev_priv
,
1290 enum pipe pipe
, u32 val
)
1292 if ((val
& ADPA_DAC_ENABLE
) == 0)
1294 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1295 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1298 if ((val
& ADPA_PIPE_SELECT_MASK
) != ADPA_PIPE_SELECT(pipe
))
1304 static void assert_pch_dp_disabled(struct drm_i915_private
*dev_priv
,
1305 enum pipe pipe
, int reg
, u32 port_sel
)
1307 u32 val
= I915_READ(reg
);
1308 WARN(dp_pipe_enabled(dev_priv
, pipe
, port_sel
, val
),
1309 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
1310 reg
, pipe_name(pipe
));
1312 WARN(HAS_PCH_IBX(dev_priv
->dev
) && (val
& DP_PORT_EN
) == 0
1313 && (val
& DP_PIPEB_SELECT
),
1314 "IBX PCH dp port still using transcoder B\n");
1317 static void assert_pch_hdmi_disabled(struct drm_i915_private
*dev_priv
,
1318 enum pipe pipe
, int reg
)
1320 u32 val
= I915_READ(reg
);
1321 WARN(hdmi_pipe_enabled(dev_priv
, pipe
, val
),
1322 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
1323 reg
, pipe_name(pipe
));
1325 WARN(HAS_PCH_IBX(dev_priv
->dev
) && (val
& SDVO_ENABLE
) == 0
1326 && (val
& SDVO_PIPE_B_SELECT
),
1327 "IBX PCH hdmi port still using transcoder B\n");
1330 static void assert_pch_ports_disabled(struct drm_i915_private
*dev_priv
,
1336 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_B
, TRANS_DP_PORT_SEL_B
);
1337 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_C
, TRANS_DP_PORT_SEL_C
);
1338 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_D
, TRANS_DP_PORT_SEL_D
);
1341 val
= I915_READ(reg
);
1342 WARN(adpa_pipe_enabled(dev_priv
, pipe
, val
),
1343 "PCH VGA enabled on transcoder %c, should be disabled\n",
1347 val
= I915_READ(reg
);
1348 WARN(lvds_pipe_enabled(dev_priv
, pipe
, val
),
1349 "PCH LVDS enabled on transcoder %c, should be disabled\n",
1352 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIB
);
1353 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIC
);
1354 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMID
);
1357 static void intel_init_dpio(struct drm_device
*dev
)
1359 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1361 if (!IS_VALLEYVIEW(dev
))
1365 * From VLV2A0_DP_eDP_DPIO_driver_vbios_notes_10.docx -
1366 * 6. De-assert cmn_reset/side_reset. Same as VLV X0.
1367 * a. GUnit 0x2110 bit[0] set to 1 (def 0)
1368 * b. The other bits such as sfr settings / modesel may all be set
1371 * This should only be done on init and resume from S3 with both
1372 * PLLs disabled, or we risk losing DPIO and PLL synchronization.
1374 I915_WRITE(DPIO_CTL
, I915_READ(DPIO_CTL
) | DPIO_CMNRST
);
1377 static void vlv_enable_pll(struct intel_crtc
*crtc
)
1379 struct drm_device
*dev
= crtc
->base
.dev
;
1380 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1381 int reg
= DPLL(crtc
->pipe
);
1382 u32 dpll
= crtc
->config
.dpll_hw_state
.dpll
;
1384 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1386 /* No really, not for ILK+ */
1387 BUG_ON(!IS_VALLEYVIEW(dev_priv
->dev
));
1389 /* PLL is protected by panel, make sure we can write it */
1390 if (IS_MOBILE(dev_priv
->dev
) && !IS_I830(dev_priv
->dev
))
1391 assert_panel_unlocked(dev_priv
, crtc
->pipe
);
1393 I915_WRITE(reg
, dpll
);
1397 if (wait_for(((I915_READ(reg
) & DPLL_LOCK_VLV
) == DPLL_LOCK_VLV
), 1))
1398 DRM_ERROR("DPLL %d failed to lock\n", crtc
->pipe
);
1400 I915_WRITE(DPLL_MD(crtc
->pipe
), crtc
->config
.dpll_hw_state
.dpll_md
);
1401 POSTING_READ(DPLL_MD(crtc
->pipe
));
1403 /* We do this three times for luck */
1404 I915_WRITE(reg
, dpll
);
1406 udelay(150); /* wait for warmup */
1407 I915_WRITE(reg
, dpll
);
1409 udelay(150); /* wait for warmup */
1410 I915_WRITE(reg
, dpll
);
1412 udelay(150); /* wait for warmup */
1415 static void i9xx_enable_pll(struct intel_crtc
*crtc
)
1417 struct drm_device
*dev
= crtc
->base
.dev
;
1418 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1419 int reg
= DPLL(crtc
->pipe
);
1420 u32 dpll
= crtc
->config
.dpll_hw_state
.dpll
;
1422 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1424 /* No really, not for ILK+ */
1425 BUG_ON(dev_priv
->info
->gen
>= 5);
1427 /* PLL is protected by panel, make sure we can write it */
1428 if (IS_MOBILE(dev
) && !IS_I830(dev
))
1429 assert_panel_unlocked(dev_priv
, crtc
->pipe
);
1431 I915_WRITE(reg
, dpll
);
1433 /* Wait for the clocks to stabilize. */
1437 if (INTEL_INFO(dev
)->gen
>= 4) {
1438 I915_WRITE(DPLL_MD(crtc
->pipe
),
1439 crtc
->config
.dpll_hw_state
.dpll_md
);
1441 /* The pixel multiplier can only be updated once the
1442 * DPLL is enabled and the clocks are stable.
1444 * So write it again.
1446 I915_WRITE(reg
, dpll
);
1449 /* We do this three times for luck */
1450 I915_WRITE(reg
, dpll
);
1452 udelay(150); /* wait for warmup */
1453 I915_WRITE(reg
, dpll
);
1455 udelay(150); /* wait for warmup */
1456 I915_WRITE(reg
, dpll
);
1458 udelay(150); /* wait for warmup */
1462 * i9xx_disable_pll - disable a PLL
1463 * @dev_priv: i915 private structure
1464 * @pipe: pipe PLL to disable
1466 * Disable the PLL for @pipe, making sure the pipe is off first.
1468 * Note! This is for pre-ILK only.
1470 static void i9xx_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1472 /* Don't disable pipe A or pipe A PLLs if needed */
1473 if (pipe
== PIPE_A
&& (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
))
1476 /* Make sure the pipe isn't still relying on us */
1477 assert_pipe_disabled(dev_priv
, pipe
);
1479 I915_WRITE(DPLL(pipe
), 0);
1480 POSTING_READ(DPLL(pipe
));
1483 static void vlv_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1487 /* Make sure the pipe isn't still relying on us */
1488 assert_pipe_disabled(dev_priv
, pipe
);
1490 /* Leave integrated clock source enabled */
1492 val
= DPLL_INTEGRATED_CRI_CLK_VLV
;
1493 I915_WRITE(DPLL(pipe
), val
);
1494 POSTING_READ(DPLL(pipe
));
1497 void vlv_wait_port_ready(struct drm_i915_private
*dev_priv
, int port
)
1502 port_mask
= DPLL_PORTB_READY_MASK
;
1504 port_mask
= DPLL_PORTC_READY_MASK
;
1506 if (wait_for((I915_READ(DPLL(0)) & port_mask
) == 0, 1000))
1507 WARN(1, "timed out waiting for port %c ready: 0x%08x\n",
1508 'B' + port
, I915_READ(DPLL(0)));
1512 * ironlake_enable_shared_dpll - enable PCH PLL
1513 * @dev_priv: i915 private structure
1514 * @pipe: pipe PLL to enable
1516 * The PCH PLL needs to be enabled before the PCH transcoder, since it
1517 * drives the transcoder clock.
1519 static void ironlake_enable_shared_dpll(struct intel_crtc
*crtc
)
1521 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
1522 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
1524 /* PCH PLLs only available on ILK, SNB and IVB */
1525 BUG_ON(dev_priv
->info
->gen
< 5);
1526 if (WARN_ON(pll
== NULL
))
1529 if (WARN_ON(pll
->refcount
== 0))
1532 DRM_DEBUG_KMS("enable %s (active %d, on? %d)for crtc %d\n",
1533 pll
->name
, pll
->active
, pll
->on
,
1534 crtc
->base
.base
.id
);
1536 if (pll
->active
++) {
1538 assert_shared_dpll_enabled(dev_priv
, pll
);
1543 DRM_DEBUG_KMS("enabling %s\n", pll
->name
);
1544 pll
->enable(dev_priv
, pll
);
1548 static void intel_disable_shared_dpll(struct intel_crtc
*crtc
)
1550 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
1551 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
1553 /* PCH only available on ILK+ */
1554 BUG_ON(dev_priv
->info
->gen
< 5);
1555 if (WARN_ON(pll
== NULL
))
1558 if (WARN_ON(pll
->refcount
== 0))
1561 DRM_DEBUG_KMS("disable %s (active %d, on? %d) for crtc %d\n",
1562 pll
->name
, pll
->active
, pll
->on
,
1563 crtc
->base
.base
.id
);
1565 if (WARN_ON(pll
->active
== 0)) {
1566 assert_shared_dpll_disabled(dev_priv
, pll
);
1570 assert_shared_dpll_enabled(dev_priv
, pll
);
1575 DRM_DEBUG_KMS("disabling %s\n", pll
->name
);
1576 pll
->disable(dev_priv
, pll
);
1580 static void ironlake_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1583 struct drm_device
*dev
= dev_priv
->dev
;
1584 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
1585 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
1586 uint32_t reg
, val
, pipeconf_val
;
1588 /* PCH only available on ILK+ */
1589 BUG_ON(dev_priv
->info
->gen
< 5);
1591 /* Make sure PCH DPLL is enabled */
1592 assert_shared_dpll_enabled(dev_priv
,
1593 intel_crtc_to_shared_dpll(intel_crtc
));
1595 /* FDI must be feeding us bits for PCH ports */
1596 assert_fdi_tx_enabled(dev_priv
, pipe
);
1597 assert_fdi_rx_enabled(dev_priv
, pipe
);
1599 if (HAS_PCH_CPT(dev
)) {
1600 /* Workaround: Set the timing override bit before enabling the
1601 * pch transcoder. */
1602 reg
= TRANS_CHICKEN2(pipe
);
1603 val
= I915_READ(reg
);
1604 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
1605 I915_WRITE(reg
, val
);
1608 reg
= PCH_TRANSCONF(pipe
);
1609 val
= I915_READ(reg
);
1610 pipeconf_val
= I915_READ(PIPECONF(pipe
));
1612 if (HAS_PCH_IBX(dev_priv
->dev
)) {
1614 * make the BPC in transcoder be consistent with
1615 * that in pipeconf reg.
1617 val
&= ~PIPECONF_BPC_MASK
;
1618 val
|= pipeconf_val
& PIPECONF_BPC_MASK
;
1621 val
&= ~TRANS_INTERLACE_MASK
;
1622 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK
) == PIPECONF_INTERLACED_ILK
)
1623 if (HAS_PCH_IBX(dev_priv
->dev
) &&
1624 intel_pipe_has_type(crtc
, INTEL_OUTPUT_SDVO
))
1625 val
|= TRANS_LEGACY_INTERLACED_ILK
;
1627 val
|= TRANS_INTERLACED
;
1629 val
|= TRANS_PROGRESSIVE
;
1631 I915_WRITE(reg
, val
| TRANS_ENABLE
);
1632 if (wait_for(I915_READ(reg
) & TRANS_STATE_ENABLE
, 100))
1633 DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe
));
1636 static void lpt_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1637 enum transcoder cpu_transcoder
)
1639 u32 val
, pipeconf_val
;
1641 /* PCH only available on ILK+ */
1642 BUG_ON(dev_priv
->info
->gen
< 5);
1644 /* FDI must be feeding us bits for PCH ports */
1645 assert_fdi_tx_enabled(dev_priv
, (enum pipe
) cpu_transcoder
);
1646 assert_fdi_rx_enabled(dev_priv
, TRANSCODER_A
);
1648 /* Workaround: set timing override bit. */
1649 val
= I915_READ(_TRANSA_CHICKEN2
);
1650 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
1651 I915_WRITE(_TRANSA_CHICKEN2
, val
);
1654 pipeconf_val
= I915_READ(PIPECONF(cpu_transcoder
));
1656 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK_HSW
) ==
1657 PIPECONF_INTERLACED_ILK
)
1658 val
|= TRANS_INTERLACED
;
1660 val
|= TRANS_PROGRESSIVE
;
1662 I915_WRITE(LPT_TRANSCONF
, val
);
1663 if (wait_for(I915_READ(LPT_TRANSCONF
) & TRANS_STATE_ENABLE
, 100))
1664 DRM_ERROR("Failed to enable PCH transcoder\n");
1667 static void ironlake_disable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1670 struct drm_device
*dev
= dev_priv
->dev
;
1673 /* FDI relies on the transcoder */
1674 assert_fdi_tx_disabled(dev_priv
, pipe
);
1675 assert_fdi_rx_disabled(dev_priv
, pipe
);
1677 /* Ports must be off as well */
1678 assert_pch_ports_disabled(dev_priv
, pipe
);
1680 reg
= PCH_TRANSCONF(pipe
);
1681 val
= I915_READ(reg
);
1682 val
&= ~TRANS_ENABLE
;
1683 I915_WRITE(reg
, val
);
1684 /* wait for PCH transcoder off, transcoder state */
1685 if (wait_for((I915_READ(reg
) & TRANS_STATE_ENABLE
) == 0, 50))
1686 DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe
));
1688 if (!HAS_PCH_IBX(dev
)) {
1689 /* Workaround: Clear the timing override chicken bit again. */
1690 reg
= TRANS_CHICKEN2(pipe
);
1691 val
= I915_READ(reg
);
1692 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
1693 I915_WRITE(reg
, val
);
1697 static void lpt_disable_pch_transcoder(struct drm_i915_private
*dev_priv
)
1701 val
= I915_READ(LPT_TRANSCONF
);
1702 val
&= ~TRANS_ENABLE
;
1703 I915_WRITE(LPT_TRANSCONF
, val
);
1704 /* wait for PCH transcoder off, transcoder state */
1705 if (wait_for((I915_READ(LPT_TRANSCONF
) & TRANS_STATE_ENABLE
) == 0, 50))
1706 DRM_ERROR("Failed to disable PCH transcoder\n");
1708 /* Workaround: clear timing override bit. */
1709 val
= I915_READ(_TRANSA_CHICKEN2
);
1710 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
1711 I915_WRITE(_TRANSA_CHICKEN2
, val
);
1715 * intel_enable_pipe - enable a pipe, asserting requirements
1716 * @dev_priv: i915 private structure
1717 * @pipe: pipe to enable
1718 * @pch_port: on ILK+, is this pipe driving a PCH port or not
1720 * Enable @pipe, making sure that various hardware specific requirements
1721 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
1723 * @pipe should be %PIPE_A or %PIPE_B.
1725 * Will wait until the pipe is actually running (i.e. first vblank) before
1728 static void intel_enable_pipe(struct drm_i915_private
*dev_priv
, enum pipe pipe
,
1729 bool pch_port
, bool dsi
)
1731 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1733 enum pipe pch_transcoder
;
1737 assert_planes_disabled(dev_priv
, pipe
);
1738 assert_cursor_disabled(dev_priv
, pipe
);
1739 assert_sprites_disabled(dev_priv
, pipe
);
1741 if (HAS_PCH_LPT(dev_priv
->dev
))
1742 pch_transcoder
= TRANSCODER_A
;
1744 pch_transcoder
= pipe
;
1747 * A pipe without a PLL won't actually be able to drive bits from
1748 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
1751 if (!HAS_PCH_SPLIT(dev_priv
->dev
))
1753 assert_dsi_pll_enabled(dev_priv
);
1755 assert_pll_enabled(dev_priv
, pipe
);
1758 /* if driving the PCH, we need FDI enabled */
1759 assert_fdi_rx_pll_enabled(dev_priv
, pch_transcoder
);
1760 assert_fdi_tx_pll_enabled(dev_priv
,
1761 (enum pipe
) cpu_transcoder
);
1763 /* FIXME: assert CPU port conditions for SNB+ */
1766 reg
= PIPECONF(cpu_transcoder
);
1767 val
= I915_READ(reg
);
1768 if (val
& PIPECONF_ENABLE
)
1771 I915_WRITE(reg
, val
| PIPECONF_ENABLE
);
1772 intel_wait_for_vblank(dev_priv
->dev
, pipe
);
1776 * intel_disable_pipe - disable a pipe, asserting requirements
1777 * @dev_priv: i915 private structure
1778 * @pipe: pipe to disable
1780 * Disable @pipe, making sure that various hardware specific requirements
1781 * are met, if applicable, e.g. plane disabled, panel fitter off, etc.
1783 * @pipe should be %PIPE_A or %PIPE_B.
1785 * Will wait until the pipe has shut down before returning.
1787 static void intel_disable_pipe(struct drm_i915_private
*dev_priv
,
1790 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1796 * Make sure planes won't keep trying to pump pixels to us,
1797 * or we might hang the display.
1799 assert_planes_disabled(dev_priv
, pipe
);
1800 assert_cursor_disabled(dev_priv
, pipe
);
1801 assert_sprites_disabled(dev_priv
, pipe
);
1803 /* Don't disable pipe A or pipe A PLLs if needed */
1804 if (pipe
== PIPE_A
&& (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
))
1807 reg
= PIPECONF(cpu_transcoder
);
1808 val
= I915_READ(reg
);
1809 if ((val
& PIPECONF_ENABLE
) == 0)
1812 I915_WRITE(reg
, val
& ~PIPECONF_ENABLE
);
1813 intel_wait_for_pipe_off(dev_priv
->dev
, pipe
);
1817 * Plane regs are double buffered, going from enabled->disabled needs a
1818 * trigger in order to latch. The display address reg provides this.
1820 void intel_flush_primary_plane(struct drm_i915_private
*dev_priv
,
1823 u32 reg
= dev_priv
->info
->gen
>= 4 ? DSPSURF(plane
) : DSPADDR(plane
);
1825 I915_WRITE(reg
, I915_READ(reg
));
1830 * intel_enable_primary_plane - enable the primary plane on a given pipe
1831 * @dev_priv: i915 private structure
1832 * @plane: plane to enable
1833 * @pipe: pipe being fed
1835 * Enable @plane on @pipe, making sure that @pipe is running first.
1837 static void intel_enable_primary_plane(struct drm_i915_private
*dev_priv
,
1838 enum plane plane
, enum pipe pipe
)
1840 struct intel_crtc
*intel_crtc
=
1841 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
1845 /* If the pipe isn't enabled, we can't pump pixels and may hang */
1846 assert_pipe_enabled(dev_priv
, pipe
);
1848 WARN(intel_crtc
->primary_enabled
, "Primary plane already enabled\n");
1850 intel_crtc
->primary_enabled
= true;
1852 reg
= DSPCNTR(plane
);
1853 val
= I915_READ(reg
);
1854 if (val
& DISPLAY_PLANE_ENABLE
)
1857 I915_WRITE(reg
, val
| DISPLAY_PLANE_ENABLE
);
1858 intel_flush_primary_plane(dev_priv
, plane
);
1859 intel_wait_for_vblank(dev_priv
->dev
, pipe
);
1863 * intel_disable_primary_plane - disable the primary plane
1864 * @dev_priv: i915 private structure
1865 * @plane: plane to disable
1866 * @pipe: pipe consuming the data
1868 * Disable @plane; should be an independent operation.
1870 static void intel_disable_primary_plane(struct drm_i915_private
*dev_priv
,
1871 enum plane plane
, enum pipe pipe
)
1873 struct intel_crtc
*intel_crtc
=
1874 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
1878 WARN(!intel_crtc
->primary_enabled
, "Primary plane already disabled\n");
1880 intel_crtc
->primary_enabled
= false;
1882 reg
= DSPCNTR(plane
);
1883 val
= I915_READ(reg
);
1884 if ((val
& DISPLAY_PLANE_ENABLE
) == 0)
1887 I915_WRITE(reg
, val
& ~DISPLAY_PLANE_ENABLE
);
1888 intel_flush_primary_plane(dev_priv
, plane
);
1889 intel_wait_for_vblank(dev_priv
->dev
, pipe
);
1892 static bool need_vtd_wa(struct drm_device
*dev
)
1894 #ifdef CONFIG_INTEL_IOMMU
1895 if (INTEL_INFO(dev
)->gen
>= 6 && intel_iommu_gfx_mapped
)
1902 intel_pin_and_fence_fb_obj(struct drm_device
*dev
,
1903 struct drm_i915_gem_object
*obj
,
1904 struct intel_ring_buffer
*pipelined
)
1906 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1910 switch (obj
->tiling_mode
) {
1911 case I915_TILING_NONE
:
1912 if (IS_BROADWATER(dev
) || IS_CRESTLINE(dev
))
1913 alignment
= 128 * 1024;
1914 else if (INTEL_INFO(dev
)->gen
>= 4)
1915 alignment
= 4 * 1024;
1917 alignment
= 64 * 1024;
1920 /* pin() will align the object as required by fence */
1924 WARN(1, "Y tiled bo slipped through, driver bug!\n");
1930 /* Note that the w/a also requires 64 PTE of padding following the
1931 * bo. We currently fill all unused PTE with the shadow page and so
1932 * we should always have valid PTE following the scanout preventing
1935 if (need_vtd_wa(dev
) && alignment
< 256 * 1024)
1936 alignment
= 256 * 1024;
1938 dev_priv
->mm
.interruptible
= false;
1939 ret
= i915_gem_object_pin_to_display_plane(obj
, alignment
, pipelined
);
1941 goto err_interruptible
;
1943 /* Install a fence for tiled scan-out. Pre-i965 always needs a
1944 * fence, whereas 965+ only requires a fence if using
1945 * framebuffer compression. For simplicity, we always install
1946 * a fence as the cost is not that onerous.
1948 ret
= i915_gem_object_get_fence(obj
);
1952 i915_gem_object_pin_fence(obj
);
1954 dev_priv
->mm
.interruptible
= true;
1958 i915_gem_object_unpin_from_display_plane(obj
);
1960 dev_priv
->mm
.interruptible
= true;
1964 void intel_unpin_fb_obj(struct drm_i915_gem_object
*obj
)
1966 i915_gem_object_unpin_fence(obj
);
1967 i915_gem_object_unpin_from_display_plane(obj
);
1970 /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel
1971 * is assumed to be a power-of-two. */
1972 unsigned long intel_gen4_compute_page_offset(int *x
, int *y
,
1973 unsigned int tiling_mode
,
1977 if (tiling_mode
!= I915_TILING_NONE
) {
1978 unsigned int tile_rows
, tiles
;
1983 tiles
= *x
/ (512/cpp
);
1986 return tile_rows
* pitch
* 8 + tiles
* 4096;
1988 unsigned int offset
;
1990 offset
= *y
* pitch
+ *x
* cpp
;
1992 *x
= (offset
& 4095) / cpp
;
1993 return offset
& -4096;
1997 static int i9xx_update_plane(struct drm_crtc
*crtc
, struct drm_framebuffer
*fb
,
2000 struct drm_device
*dev
= crtc
->dev
;
2001 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2002 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2003 struct intel_framebuffer
*intel_fb
;
2004 struct drm_i915_gem_object
*obj
;
2005 int plane
= intel_crtc
->plane
;
2006 unsigned long linear_offset
;
2015 DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane
));
2019 intel_fb
= to_intel_framebuffer(fb
);
2020 obj
= intel_fb
->obj
;
2022 reg
= DSPCNTR(plane
);
2023 dspcntr
= I915_READ(reg
);
2024 /* Mask out pixel format bits in case we change it */
2025 dspcntr
&= ~DISPPLANE_PIXFORMAT_MASK
;
2026 switch (fb
->pixel_format
) {
2028 dspcntr
|= DISPPLANE_8BPP
;
2030 case DRM_FORMAT_XRGB1555
:
2031 case DRM_FORMAT_ARGB1555
:
2032 dspcntr
|= DISPPLANE_BGRX555
;
2034 case DRM_FORMAT_RGB565
:
2035 dspcntr
|= DISPPLANE_BGRX565
;
2037 case DRM_FORMAT_XRGB8888
:
2038 case DRM_FORMAT_ARGB8888
:
2039 dspcntr
|= DISPPLANE_BGRX888
;
2041 case DRM_FORMAT_XBGR8888
:
2042 case DRM_FORMAT_ABGR8888
:
2043 dspcntr
|= DISPPLANE_RGBX888
;
2045 case DRM_FORMAT_XRGB2101010
:
2046 case DRM_FORMAT_ARGB2101010
:
2047 dspcntr
|= DISPPLANE_BGRX101010
;
2049 case DRM_FORMAT_XBGR2101010
:
2050 case DRM_FORMAT_ABGR2101010
:
2051 dspcntr
|= DISPPLANE_RGBX101010
;
2057 if (INTEL_INFO(dev
)->gen
>= 4) {
2058 if (obj
->tiling_mode
!= I915_TILING_NONE
)
2059 dspcntr
|= DISPPLANE_TILED
;
2061 dspcntr
&= ~DISPPLANE_TILED
;
2065 dspcntr
|= DISPPLANE_TRICKLE_FEED_DISABLE
;
2067 I915_WRITE(reg
, dspcntr
);
2069 linear_offset
= y
* fb
->pitches
[0] + x
* (fb
->bits_per_pixel
/ 8);
2071 if (INTEL_INFO(dev
)->gen
>= 4) {
2072 intel_crtc
->dspaddr_offset
=
2073 intel_gen4_compute_page_offset(&x
, &y
, obj
->tiling_mode
,
2074 fb
->bits_per_pixel
/ 8,
2076 linear_offset
-= intel_crtc
->dspaddr_offset
;
2078 intel_crtc
->dspaddr_offset
= linear_offset
;
2081 DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
2082 i915_gem_obj_ggtt_offset(obj
), linear_offset
, x
, y
,
2084 I915_WRITE(DSPSTRIDE(plane
), fb
->pitches
[0]);
2085 if (INTEL_INFO(dev
)->gen
>= 4) {
2086 I915_MODIFY_DISPBASE(DSPSURF(plane
),
2087 i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
);
2088 I915_WRITE(DSPTILEOFF(plane
), (y
<< 16) | x
);
2089 I915_WRITE(DSPLINOFF(plane
), linear_offset
);
2091 I915_WRITE(DSPADDR(plane
), i915_gem_obj_ggtt_offset(obj
) + linear_offset
);
2097 static int ironlake_update_plane(struct drm_crtc
*crtc
,
2098 struct drm_framebuffer
*fb
, int x
, int y
)
2100 struct drm_device
*dev
= crtc
->dev
;
2101 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2102 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2103 struct intel_framebuffer
*intel_fb
;
2104 struct drm_i915_gem_object
*obj
;
2105 int plane
= intel_crtc
->plane
;
2106 unsigned long linear_offset
;
2116 DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane
));
2120 intel_fb
= to_intel_framebuffer(fb
);
2121 obj
= intel_fb
->obj
;
2123 reg
= DSPCNTR(plane
);
2124 dspcntr
= I915_READ(reg
);
2125 /* Mask out pixel format bits in case we change it */
2126 dspcntr
&= ~DISPPLANE_PIXFORMAT_MASK
;
2127 switch (fb
->pixel_format
) {
2129 dspcntr
|= DISPPLANE_8BPP
;
2131 case DRM_FORMAT_RGB565
:
2132 dspcntr
|= DISPPLANE_BGRX565
;
2134 case DRM_FORMAT_XRGB8888
:
2135 case DRM_FORMAT_ARGB8888
:
2136 dspcntr
|= DISPPLANE_BGRX888
;
2138 case DRM_FORMAT_XBGR8888
:
2139 case DRM_FORMAT_ABGR8888
:
2140 dspcntr
|= DISPPLANE_RGBX888
;
2142 case DRM_FORMAT_XRGB2101010
:
2143 case DRM_FORMAT_ARGB2101010
:
2144 dspcntr
|= DISPPLANE_BGRX101010
;
2146 case DRM_FORMAT_XBGR2101010
:
2147 case DRM_FORMAT_ABGR2101010
:
2148 dspcntr
|= DISPPLANE_RGBX101010
;
2154 if (obj
->tiling_mode
!= I915_TILING_NONE
)
2155 dspcntr
|= DISPPLANE_TILED
;
2157 dspcntr
&= ~DISPPLANE_TILED
;
2159 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
2160 dspcntr
&= ~DISPPLANE_TRICKLE_FEED_DISABLE
;
2162 dspcntr
|= DISPPLANE_TRICKLE_FEED_DISABLE
;
2164 I915_WRITE(reg
, dspcntr
);
2166 linear_offset
= y
* fb
->pitches
[0] + x
* (fb
->bits_per_pixel
/ 8);
2167 intel_crtc
->dspaddr_offset
=
2168 intel_gen4_compute_page_offset(&x
, &y
, obj
->tiling_mode
,
2169 fb
->bits_per_pixel
/ 8,
2171 linear_offset
-= intel_crtc
->dspaddr_offset
;
2173 DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
2174 i915_gem_obj_ggtt_offset(obj
), linear_offset
, x
, y
,
2176 I915_WRITE(DSPSTRIDE(plane
), fb
->pitches
[0]);
2177 I915_MODIFY_DISPBASE(DSPSURF(plane
),
2178 i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
);
2179 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
2180 I915_WRITE(DSPOFFSET(plane
), (y
<< 16) | x
);
2182 I915_WRITE(DSPTILEOFF(plane
), (y
<< 16) | x
);
2183 I915_WRITE(DSPLINOFF(plane
), linear_offset
);
2190 /* Assume fb object is pinned & idle & fenced and just update base pointers */
2192 intel_pipe_set_base_atomic(struct drm_crtc
*crtc
, struct drm_framebuffer
*fb
,
2193 int x
, int y
, enum mode_set_atomic state
)
2195 struct drm_device
*dev
= crtc
->dev
;
2196 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2198 if (dev_priv
->display
.disable_fbc
)
2199 dev_priv
->display
.disable_fbc(dev
);
2200 intel_increase_pllclock(crtc
);
2202 return dev_priv
->display
.update_plane(crtc
, fb
, x
, y
);
2205 void intel_display_handle_reset(struct drm_device
*dev
)
2207 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2208 struct drm_crtc
*crtc
;
2211 * Flips in the rings have been nuked by the reset,
2212 * so complete all pending flips so that user space
2213 * will get its events and not get stuck.
2215 * Also update the base address of all primary
2216 * planes to the the last fb to make sure we're
2217 * showing the correct fb after a reset.
2219 * Need to make two loops over the crtcs so that we
2220 * don't try to grab a crtc mutex before the
2221 * pending_flip_queue really got woken up.
2224 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
2225 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2226 enum plane plane
= intel_crtc
->plane
;
2228 intel_prepare_page_flip(dev
, plane
);
2229 intel_finish_page_flip_plane(dev
, plane
);
2232 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
2233 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2235 mutex_lock(&crtc
->mutex
);
2236 if (intel_crtc
->active
)
2237 dev_priv
->display
.update_plane(crtc
, crtc
->fb
,
2239 mutex_unlock(&crtc
->mutex
);
2244 intel_finish_fb(struct drm_framebuffer
*old_fb
)
2246 struct drm_i915_gem_object
*obj
= to_intel_framebuffer(old_fb
)->obj
;
2247 struct drm_i915_private
*dev_priv
= obj
->base
.dev
->dev_private
;
2248 bool was_interruptible
= dev_priv
->mm
.interruptible
;
2251 /* Big Hammer, we also need to ensure that any pending
2252 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
2253 * current scanout is retired before unpinning the old
2256 * This should only fail upon a hung GPU, in which case we
2257 * can safely continue.
2259 dev_priv
->mm
.interruptible
= false;
2260 ret
= i915_gem_object_finish_gpu(obj
);
2261 dev_priv
->mm
.interruptible
= was_interruptible
;
2266 static void intel_crtc_update_sarea_pos(struct drm_crtc
*crtc
, int x
, int y
)
2268 struct drm_device
*dev
= crtc
->dev
;
2269 struct drm_i915_master_private
*master_priv
;
2270 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2272 if (!dev
->primary
->master
)
2275 master_priv
= dev
->primary
->master
->driver_priv
;
2276 if (!master_priv
->sarea_priv
)
2279 switch (intel_crtc
->pipe
) {
2281 master_priv
->sarea_priv
->pipeA_x
= x
;
2282 master_priv
->sarea_priv
->pipeA_y
= y
;
2285 master_priv
->sarea_priv
->pipeB_x
= x
;
2286 master_priv
->sarea_priv
->pipeB_y
= y
;
2294 intel_pipe_set_base(struct drm_crtc
*crtc
, int x
, int y
,
2295 struct drm_framebuffer
*fb
)
2297 struct drm_device
*dev
= crtc
->dev
;
2298 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2299 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2300 struct drm_framebuffer
*old_fb
;
2305 DRM_ERROR("No FB bound\n");
2309 if (intel_crtc
->plane
> INTEL_INFO(dev
)->num_pipes
) {
2310 DRM_ERROR("no plane for crtc: plane %c, num_pipes %d\n",
2311 plane_name(intel_crtc
->plane
),
2312 INTEL_INFO(dev
)->num_pipes
);
2316 mutex_lock(&dev
->struct_mutex
);
2317 ret
= intel_pin_and_fence_fb_obj(dev
,
2318 to_intel_framebuffer(fb
)->obj
,
2321 mutex_unlock(&dev
->struct_mutex
);
2322 DRM_ERROR("pin & fence failed\n");
2327 * Update pipe size and adjust fitter if needed: the reason for this is
2328 * that in compute_mode_changes we check the native mode (not the pfit
2329 * mode) to see if we can flip rather than do a full mode set. In the
2330 * fastboot case, we'll flip, but if we don't update the pipesrc and
2331 * pfit state, we'll end up with a big fb scanned out into the wrong
2334 * To fix this properly, we need to hoist the checks up into
2335 * compute_mode_changes (or above), check the actual pfit state and
2336 * whether the platform allows pfit disable with pipe active, and only
2337 * then update the pipesrc and pfit state, even on the flip path.
2339 if (i915_fastboot
) {
2340 const struct drm_display_mode
*adjusted_mode
=
2341 &intel_crtc
->config
.adjusted_mode
;
2343 I915_WRITE(PIPESRC(intel_crtc
->pipe
),
2344 ((adjusted_mode
->crtc_hdisplay
- 1) << 16) |
2345 (adjusted_mode
->crtc_vdisplay
- 1));
2346 if (!intel_crtc
->config
.pch_pfit
.enabled
&&
2347 (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) ||
2348 intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
))) {
2349 I915_WRITE(PF_CTL(intel_crtc
->pipe
), 0);
2350 I915_WRITE(PF_WIN_POS(intel_crtc
->pipe
), 0);
2351 I915_WRITE(PF_WIN_SZ(intel_crtc
->pipe
), 0);
2355 ret
= dev_priv
->display
.update_plane(crtc
, fb
, x
, y
);
2357 intel_unpin_fb_obj(to_intel_framebuffer(fb
)->obj
);
2358 mutex_unlock(&dev
->struct_mutex
);
2359 DRM_ERROR("failed to update base address\n");
2369 if (intel_crtc
->active
&& old_fb
!= fb
)
2370 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
2371 intel_unpin_fb_obj(to_intel_framebuffer(old_fb
)->obj
);
2374 intel_update_fbc(dev
);
2375 intel_edp_psr_update(dev
);
2376 mutex_unlock(&dev
->struct_mutex
);
2378 intel_crtc_update_sarea_pos(crtc
, x
, y
);
2383 static void intel_fdi_normal_train(struct drm_crtc
*crtc
)
2385 struct drm_device
*dev
= crtc
->dev
;
2386 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2387 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2388 int pipe
= intel_crtc
->pipe
;
2391 /* enable normal train */
2392 reg
= FDI_TX_CTL(pipe
);
2393 temp
= I915_READ(reg
);
2394 if (IS_IVYBRIDGE(dev
)) {
2395 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
2396 temp
|= FDI_LINK_TRAIN_NONE_IVB
| FDI_TX_ENHANCE_FRAME_ENABLE
;
2398 temp
&= ~FDI_LINK_TRAIN_NONE
;
2399 temp
|= FDI_LINK_TRAIN_NONE
| FDI_TX_ENHANCE_FRAME_ENABLE
;
2401 I915_WRITE(reg
, temp
);
2403 reg
= FDI_RX_CTL(pipe
);
2404 temp
= I915_READ(reg
);
2405 if (HAS_PCH_CPT(dev
)) {
2406 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2407 temp
|= FDI_LINK_TRAIN_NORMAL_CPT
;
2409 temp
&= ~FDI_LINK_TRAIN_NONE
;
2410 temp
|= FDI_LINK_TRAIN_NONE
;
2412 I915_WRITE(reg
, temp
| FDI_RX_ENHANCE_FRAME_ENABLE
);
2414 /* wait one idle pattern time */
2418 /* IVB wants error correction enabled */
2419 if (IS_IVYBRIDGE(dev
))
2420 I915_WRITE(reg
, I915_READ(reg
) | FDI_FS_ERRC_ENABLE
|
2421 FDI_FE_ERRC_ENABLE
);
2424 static bool pipe_has_enabled_pch(struct intel_crtc
*crtc
)
2426 return crtc
->base
.enabled
&& crtc
->active
&&
2427 crtc
->config
.has_pch_encoder
;
2430 static void ivb_modeset_global_resources(struct drm_device
*dev
)
2432 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2433 struct intel_crtc
*pipe_B_crtc
=
2434 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[PIPE_B
]);
2435 struct intel_crtc
*pipe_C_crtc
=
2436 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[PIPE_C
]);
2440 * When everything is off disable fdi C so that we could enable fdi B
2441 * with all lanes. Note that we don't care about enabled pipes without
2442 * an enabled pch encoder.
2444 if (!pipe_has_enabled_pch(pipe_B_crtc
) &&
2445 !pipe_has_enabled_pch(pipe_C_crtc
)) {
2446 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B
)) & FDI_RX_ENABLE
);
2447 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C
)) & FDI_RX_ENABLE
);
2449 temp
= I915_READ(SOUTH_CHICKEN1
);
2450 temp
&= ~FDI_BC_BIFURCATION_SELECT
;
2451 DRM_DEBUG_KMS("disabling fdi C rx\n");
2452 I915_WRITE(SOUTH_CHICKEN1
, temp
);
2456 /* The FDI link training functions for ILK/Ibexpeak. */
2457 static void ironlake_fdi_link_train(struct drm_crtc
*crtc
)
2459 struct drm_device
*dev
= crtc
->dev
;
2460 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2461 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2462 int pipe
= intel_crtc
->pipe
;
2463 int plane
= intel_crtc
->plane
;
2464 u32 reg
, temp
, tries
;
2466 /* FDI needs bits from pipe & plane first */
2467 assert_pipe_enabled(dev_priv
, pipe
);
2468 assert_plane_enabled(dev_priv
, plane
);
2470 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2472 reg
= FDI_RX_IMR(pipe
);
2473 temp
= I915_READ(reg
);
2474 temp
&= ~FDI_RX_SYMBOL_LOCK
;
2475 temp
&= ~FDI_RX_BIT_LOCK
;
2476 I915_WRITE(reg
, temp
);
2480 /* enable CPU FDI TX and PCH FDI RX */
2481 reg
= FDI_TX_CTL(pipe
);
2482 temp
= I915_READ(reg
);
2483 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
2484 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
.fdi_lanes
);
2485 temp
&= ~FDI_LINK_TRAIN_NONE
;
2486 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2487 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
2489 reg
= FDI_RX_CTL(pipe
);
2490 temp
= I915_READ(reg
);
2491 temp
&= ~FDI_LINK_TRAIN_NONE
;
2492 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2493 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
2498 /* Ironlake workaround, enable clock pointer after FDI enable*/
2499 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
2500 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
|
2501 FDI_RX_PHASE_SYNC_POINTER_EN
);
2503 reg
= FDI_RX_IIR(pipe
);
2504 for (tries
= 0; tries
< 5; tries
++) {
2505 temp
= I915_READ(reg
);
2506 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2508 if ((temp
& FDI_RX_BIT_LOCK
)) {
2509 DRM_DEBUG_KMS("FDI train 1 done.\n");
2510 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
2515 DRM_ERROR("FDI train 1 fail!\n");
2518 reg
= FDI_TX_CTL(pipe
);
2519 temp
= I915_READ(reg
);
2520 temp
&= ~FDI_LINK_TRAIN_NONE
;
2521 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2522 I915_WRITE(reg
, temp
);
2524 reg
= FDI_RX_CTL(pipe
);
2525 temp
= I915_READ(reg
);
2526 temp
&= ~FDI_LINK_TRAIN_NONE
;
2527 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2528 I915_WRITE(reg
, temp
);
2533 reg
= FDI_RX_IIR(pipe
);
2534 for (tries
= 0; tries
< 5; tries
++) {
2535 temp
= I915_READ(reg
);
2536 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2538 if (temp
& FDI_RX_SYMBOL_LOCK
) {
2539 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
2540 DRM_DEBUG_KMS("FDI train 2 done.\n");
2545 DRM_ERROR("FDI train 2 fail!\n");
2547 DRM_DEBUG_KMS("FDI train done\n");
2551 static const int snb_b_fdi_train_param
[] = {
2552 FDI_LINK_TRAIN_400MV_0DB_SNB_B
,
2553 FDI_LINK_TRAIN_400MV_6DB_SNB_B
,
2554 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B
,
2555 FDI_LINK_TRAIN_800MV_0DB_SNB_B
,
2558 /* The FDI link training functions for SNB/Cougarpoint. */
2559 static void gen6_fdi_link_train(struct drm_crtc
*crtc
)
2561 struct drm_device
*dev
= crtc
->dev
;
2562 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2563 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2564 int pipe
= intel_crtc
->pipe
;
2565 u32 reg
, temp
, i
, retry
;
2567 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2569 reg
= FDI_RX_IMR(pipe
);
2570 temp
= I915_READ(reg
);
2571 temp
&= ~FDI_RX_SYMBOL_LOCK
;
2572 temp
&= ~FDI_RX_BIT_LOCK
;
2573 I915_WRITE(reg
, temp
);
2578 /* enable CPU FDI TX and PCH FDI RX */
2579 reg
= FDI_TX_CTL(pipe
);
2580 temp
= I915_READ(reg
);
2581 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
2582 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
.fdi_lanes
);
2583 temp
&= ~FDI_LINK_TRAIN_NONE
;
2584 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2585 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2587 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
2588 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
2590 I915_WRITE(FDI_RX_MISC(pipe
),
2591 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
2593 reg
= FDI_RX_CTL(pipe
);
2594 temp
= I915_READ(reg
);
2595 if (HAS_PCH_CPT(dev
)) {
2596 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2597 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
2599 temp
&= ~FDI_LINK_TRAIN_NONE
;
2600 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2602 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
2607 for (i
= 0; i
< 4; i
++) {
2608 reg
= FDI_TX_CTL(pipe
);
2609 temp
= I915_READ(reg
);
2610 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2611 temp
|= snb_b_fdi_train_param
[i
];
2612 I915_WRITE(reg
, temp
);
2617 for (retry
= 0; retry
< 5; retry
++) {
2618 reg
= FDI_RX_IIR(pipe
);
2619 temp
= I915_READ(reg
);
2620 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2621 if (temp
& FDI_RX_BIT_LOCK
) {
2622 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
2623 DRM_DEBUG_KMS("FDI train 1 done.\n");
2632 DRM_ERROR("FDI train 1 fail!\n");
2635 reg
= FDI_TX_CTL(pipe
);
2636 temp
= I915_READ(reg
);
2637 temp
&= ~FDI_LINK_TRAIN_NONE
;
2638 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2640 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2642 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
2644 I915_WRITE(reg
, temp
);
2646 reg
= FDI_RX_CTL(pipe
);
2647 temp
= I915_READ(reg
);
2648 if (HAS_PCH_CPT(dev
)) {
2649 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2650 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
2652 temp
&= ~FDI_LINK_TRAIN_NONE
;
2653 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2655 I915_WRITE(reg
, temp
);
2660 for (i
= 0; i
< 4; i
++) {
2661 reg
= FDI_TX_CTL(pipe
);
2662 temp
= I915_READ(reg
);
2663 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2664 temp
|= snb_b_fdi_train_param
[i
];
2665 I915_WRITE(reg
, temp
);
2670 for (retry
= 0; retry
< 5; retry
++) {
2671 reg
= FDI_RX_IIR(pipe
);
2672 temp
= I915_READ(reg
);
2673 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2674 if (temp
& FDI_RX_SYMBOL_LOCK
) {
2675 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
2676 DRM_DEBUG_KMS("FDI train 2 done.\n");
2685 DRM_ERROR("FDI train 2 fail!\n");
2687 DRM_DEBUG_KMS("FDI train done.\n");
2690 /* Manual link training for Ivy Bridge A0 parts */
2691 static void ivb_manual_fdi_link_train(struct drm_crtc
*crtc
)
2693 struct drm_device
*dev
= crtc
->dev
;
2694 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2695 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2696 int pipe
= intel_crtc
->pipe
;
2697 u32 reg
, temp
, i
, j
;
2699 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2701 reg
= FDI_RX_IMR(pipe
);
2702 temp
= I915_READ(reg
);
2703 temp
&= ~FDI_RX_SYMBOL_LOCK
;
2704 temp
&= ~FDI_RX_BIT_LOCK
;
2705 I915_WRITE(reg
, temp
);
2710 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
2711 I915_READ(FDI_RX_IIR(pipe
)));
2713 /* Try each vswing and preemphasis setting twice before moving on */
2714 for (j
= 0; j
< ARRAY_SIZE(snb_b_fdi_train_param
) * 2; j
++) {
2715 /* disable first in case we need to retry */
2716 reg
= FDI_TX_CTL(pipe
);
2717 temp
= I915_READ(reg
);
2718 temp
&= ~(FDI_LINK_TRAIN_AUTO
| FDI_LINK_TRAIN_NONE_IVB
);
2719 temp
&= ~FDI_TX_ENABLE
;
2720 I915_WRITE(reg
, temp
);
2722 reg
= FDI_RX_CTL(pipe
);
2723 temp
= I915_READ(reg
);
2724 temp
&= ~FDI_LINK_TRAIN_AUTO
;
2725 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2726 temp
&= ~FDI_RX_ENABLE
;
2727 I915_WRITE(reg
, temp
);
2729 /* enable CPU FDI TX and PCH FDI RX */
2730 reg
= FDI_TX_CTL(pipe
);
2731 temp
= I915_READ(reg
);
2732 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
2733 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
.fdi_lanes
);
2734 temp
|= FDI_LINK_TRAIN_PATTERN_1_IVB
;
2735 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2736 temp
|= snb_b_fdi_train_param
[j
/2];
2737 temp
|= FDI_COMPOSITE_SYNC
;
2738 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
2740 I915_WRITE(FDI_RX_MISC(pipe
),
2741 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
2743 reg
= FDI_RX_CTL(pipe
);
2744 temp
= I915_READ(reg
);
2745 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
2746 temp
|= FDI_COMPOSITE_SYNC
;
2747 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
2750 udelay(1); /* should be 0.5us */
2752 for (i
= 0; i
< 4; i
++) {
2753 reg
= FDI_RX_IIR(pipe
);
2754 temp
= I915_READ(reg
);
2755 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2757 if (temp
& FDI_RX_BIT_LOCK
||
2758 (I915_READ(reg
) & FDI_RX_BIT_LOCK
)) {
2759 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
2760 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n",
2764 udelay(1); /* should be 0.5us */
2767 DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j
/ 2);
2772 reg
= FDI_TX_CTL(pipe
);
2773 temp
= I915_READ(reg
);
2774 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
2775 temp
|= FDI_LINK_TRAIN_PATTERN_2_IVB
;
2776 I915_WRITE(reg
, temp
);
2778 reg
= FDI_RX_CTL(pipe
);
2779 temp
= I915_READ(reg
);
2780 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2781 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
2782 I915_WRITE(reg
, temp
);
2785 udelay(2); /* should be 1.5us */
2787 for (i
= 0; i
< 4; i
++) {
2788 reg
= FDI_RX_IIR(pipe
);
2789 temp
= I915_READ(reg
);
2790 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2792 if (temp
& FDI_RX_SYMBOL_LOCK
||
2793 (I915_READ(reg
) & FDI_RX_SYMBOL_LOCK
)) {
2794 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
2795 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n",
2799 udelay(2); /* should be 1.5us */
2802 DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j
/ 2);
2806 DRM_DEBUG_KMS("FDI train done.\n");
2809 static void ironlake_fdi_pll_enable(struct intel_crtc
*intel_crtc
)
2811 struct drm_device
*dev
= intel_crtc
->base
.dev
;
2812 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2813 int pipe
= intel_crtc
->pipe
;
2817 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
2818 reg
= FDI_RX_CTL(pipe
);
2819 temp
= I915_READ(reg
);
2820 temp
&= ~(FDI_DP_PORT_WIDTH_MASK
| (0x7 << 16));
2821 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
.fdi_lanes
);
2822 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
2823 I915_WRITE(reg
, temp
| FDI_RX_PLL_ENABLE
);
2828 /* Switch from Rawclk to PCDclk */
2829 temp
= I915_READ(reg
);
2830 I915_WRITE(reg
, temp
| FDI_PCDCLK
);
2835 /* Enable CPU FDI TX PLL, always on for Ironlake */
2836 reg
= FDI_TX_CTL(pipe
);
2837 temp
= I915_READ(reg
);
2838 if ((temp
& FDI_TX_PLL_ENABLE
) == 0) {
2839 I915_WRITE(reg
, temp
| FDI_TX_PLL_ENABLE
);
2846 static void ironlake_fdi_pll_disable(struct intel_crtc
*intel_crtc
)
2848 struct drm_device
*dev
= intel_crtc
->base
.dev
;
2849 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2850 int pipe
= intel_crtc
->pipe
;
2853 /* Switch from PCDclk to Rawclk */
2854 reg
= FDI_RX_CTL(pipe
);
2855 temp
= I915_READ(reg
);
2856 I915_WRITE(reg
, temp
& ~FDI_PCDCLK
);
2858 /* Disable CPU FDI TX PLL */
2859 reg
= FDI_TX_CTL(pipe
);
2860 temp
= I915_READ(reg
);
2861 I915_WRITE(reg
, temp
& ~FDI_TX_PLL_ENABLE
);
2866 reg
= FDI_RX_CTL(pipe
);
2867 temp
= I915_READ(reg
);
2868 I915_WRITE(reg
, temp
& ~FDI_RX_PLL_ENABLE
);
2870 /* Wait for the clocks to turn off. */
2875 static void ironlake_fdi_disable(struct drm_crtc
*crtc
)
2877 struct drm_device
*dev
= crtc
->dev
;
2878 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2879 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2880 int pipe
= intel_crtc
->pipe
;
2883 /* disable CPU FDI tx and PCH FDI rx */
2884 reg
= FDI_TX_CTL(pipe
);
2885 temp
= I915_READ(reg
);
2886 I915_WRITE(reg
, temp
& ~FDI_TX_ENABLE
);
2889 reg
= FDI_RX_CTL(pipe
);
2890 temp
= I915_READ(reg
);
2891 temp
&= ~(0x7 << 16);
2892 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
2893 I915_WRITE(reg
, temp
& ~FDI_RX_ENABLE
);
2898 /* Ironlake workaround, disable clock pointer after downing FDI */
2899 if (HAS_PCH_IBX(dev
)) {
2900 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
2903 /* still set train pattern 1 */
2904 reg
= FDI_TX_CTL(pipe
);
2905 temp
= I915_READ(reg
);
2906 temp
&= ~FDI_LINK_TRAIN_NONE
;
2907 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2908 I915_WRITE(reg
, temp
);
2910 reg
= FDI_RX_CTL(pipe
);
2911 temp
= I915_READ(reg
);
2912 if (HAS_PCH_CPT(dev
)) {
2913 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2914 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
2916 temp
&= ~FDI_LINK_TRAIN_NONE
;
2917 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2919 /* BPC in FDI rx is consistent with that in PIPECONF */
2920 temp
&= ~(0x07 << 16);
2921 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
2922 I915_WRITE(reg
, temp
);
2928 static bool intel_crtc_has_pending_flip(struct drm_crtc
*crtc
)
2930 struct drm_device
*dev
= crtc
->dev
;
2931 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2932 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2933 unsigned long flags
;
2936 if (i915_reset_in_progress(&dev_priv
->gpu_error
) ||
2937 intel_crtc
->reset_counter
!= atomic_read(&dev_priv
->gpu_error
.reset_counter
))
2940 spin_lock_irqsave(&dev
->event_lock
, flags
);
2941 pending
= to_intel_crtc(crtc
)->unpin_work
!= NULL
;
2942 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
2947 static void intel_crtc_wait_for_pending_flips(struct drm_crtc
*crtc
)
2949 struct drm_device
*dev
= crtc
->dev
;
2950 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2952 if (crtc
->fb
== NULL
)
2955 WARN_ON(waitqueue_active(&dev_priv
->pending_flip_queue
));
2957 wait_event(dev_priv
->pending_flip_queue
,
2958 !intel_crtc_has_pending_flip(crtc
));
2960 mutex_lock(&dev
->struct_mutex
);
2961 intel_finish_fb(crtc
->fb
);
2962 mutex_unlock(&dev
->struct_mutex
);
2965 /* Program iCLKIP clock to the desired frequency */
2966 static void lpt_program_iclkip(struct drm_crtc
*crtc
)
2968 struct drm_device
*dev
= crtc
->dev
;
2969 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2970 int clock
= to_intel_crtc(crtc
)->config
.adjusted_mode
.crtc_clock
;
2971 u32 divsel
, phaseinc
, auxdiv
, phasedir
= 0;
2974 mutex_lock(&dev_priv
->dpio_lock
);
2976 /* It is necessary to ungate the pixclk gate prior to programming
2977 * the divisors, and gate it back when it is done.
2979 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_GATE
);
2981 /* Disable SSCCTL */
2982 intel_sbi_write(dev_priv
, SBI_SSCCTL6
,
2983 intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
) |
2987 /* 20MHz is a corner case which is out of range for the 7-bit divisor */
2988 if (clock
== 20000) {
2993 /* The iCLK virtual clock root frequency is in MHz,
2994 * but the adjusted_mode->crtc_clock in in KHz. To get the
2995 * divisors, it is necessary to divide one by another, so we
2996 * convert the virtual clock precision to KHz here for higher
2999 u32 iclk_virtual_root_freq
= 172800 * 1000;
3000 u32 iclk_pi_range
= 64;
3001 u32 desired_divisor
, msb_divisor_value
, pi_value
;
3003 desired_divisor
= (iclk_virtual_root_freq
/ clock
);
3004 msb_divisor_value
= desired_divisor
/ iclk_pi_range
;
3005 pi_value
= desired_divisor
% iclk_pi_range
;
3008 divsel
= msb_divisor_value
- 2;
3009 phaseinc
= pi_value
;
3012 /* This should not happen with any sane values */
3013 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel
) &
3014 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
);
3015 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir
) &
3016 ~SBI_SSCDIVINTPHASE_INCVAL_MASK
);
3018 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
3025 /* Program SSCDIVINTPHASE6 */
3026 temp
= intel_sbi_read(dev_priv
, SBI_SSCDIVINTPHASE6
, SBI_ICLK
);
3027 temp
&= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
;
3028 temp
|= SBI_SSCDIVINTPHASE_DIVSEL(divsel
);
3029 temp
&= ~SBI_SSCDIVINTPHASE_INCVAL_MASK
;
3030 temp
|= SBI_SSCDIVINTPHASE_INCVAL(phaseinc
);
3031 temp
|= SBI_SSCDIVINTPHASE_DIR(phasedir
);
3032 temp
|= SBI_SSCDIVINTPHASE_PROPAGATE
;
3033 intel_sbi_write(dev_priv
, SBI_SSCDIVINTPHASE6
, temp
, SBI_ICLK
);
3035 /* Program SSCAUXDIV */
3036 temp
= intel_sbi_read(dev_priv
, SBI_SSCAUXDIV6
, SBI_ICLK
);
3037 temp
&= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
3038 temp
|= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv
);
3039 intel_sbi_write(dev_priv
, SBI_SSCAUXDIV6
, temp
, SBI_ICLK
);
3041 /* Enable modulator and associated divider */
3042 temp
= intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
);
3043 temp
&= ~SBI_SSCCTL_DISABLE
;
3044 intel_sbi_write(dev_priv
, SBI_SSCCTL6
, temp
, SBI_ICLK
);
3046 /* Wait for initialization time */
3049 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_UNGATE
);
3051 mutex_unlock(&dev_priv
->dpio_lock
);
3054 static void ironlake_pch_transcoder_set_timings(struct intel_crtc
*crtc
,
3055 enum pipe pch_transcoder
)
3057 struct drm_device
*dev
= crtc
->base
.dev
;
3058 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3059 enum transcoder cpu_transcoder
= crtc
->config
.cpu_transcoder
;
3061 I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder
),
3062 I915_READ(HTOTAL(cpu_transcoder
)));
3063 I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder
),
3064 I915_READ(HBLANK(cpu_transcoder
)));
3065 I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder
),
3066 I915_READ(HSYNC(cpu_transcoder
)));
3068 I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder
),
3069 I915_READ(VTOTAL(cpu_transcoder
)));
3070 I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder
),
3071 I915_READ(VBLANK(cpu_transcoder
)));
3072 I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder
),
3073 I915_READ(VSYNC(cpu_transcoder
)));
3074 I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder
),
3075 I915_READ(VSYNCSHIFT(cpu_transcoder
)));
3078 static void cpt_enable_fdi_bc_bifurcation(struct drm_device
*dev
)
3080 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3083 temp
= I915_READ(SOUTH_CHICKEN1
);
3084 if (temp
& FDI_BC_BIFURCATION_SELECT
)
3087 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B
)) & FDI_RX_ENABLE
);
3088 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C
)) & FDI_RX_ENABLE
);
3090 temp
|= FDI_BC_BIFURCATION_SELECT
;
3091 DRM_DEBUG_KMS("enabling fdi C rx\n");
3092 I915_WRITE(SOUTH_CHICKEN1
, temp
);
3093 POSTING_READ(SOUTH_CHICKEN1
);
3096 static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc
*intel_crtc
)
3098 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3099 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3101 switch (intel_crtc
->pipe
) {
3105 if (intel_crtc
->config
.fdi_lanes
> 2)
3106 WARN_ON(I915_READ(SOUTH_CHICKEN1
) & FDI_BC_BIFURCATION_SELECT
);
3108 cpt_enable_fdi_bc_bifurcation(dev
);
3112 cpt_enable_fdi_bc_bifurcation(dev
);
3121 * Enable PCH resources required for PCH ports:
3123 * - FDI training & RX/TX
3124 * - update transcoder timings
3125 * - DP transcoding bits
3128 static void ironlake_pch_enable(struct drm_crtc
*crtc
)
3130 struct drm_device
*dev
= crtc
->dev
;
3131 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3132 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3133 int pipe
= intel_crtc
->pipe
;
3136 assert_pch_transcoder_disabled(dev_priv
, pipe
);
3138 if (IS_IVYBRIDGE(dev
))
3139 ivybridge_update_fdi_bc_bifurcation(intel_crtc
);
3141 /* Write the TU size bits before fdi link training, so that error
3142 * detection works. */
3143 I915_WRITE(FDI_RX_TUSIZE1(pipe
),
3144 I915_READ(PIPE_DATA_M1(pipe
)) & TU_SIZE_MASK
);
3146 /* For PCH output, training FDI link */
3147 dev_priv
->display
.fdi_link_train(crtc
);
3149 /* We need to program the right clock selection before writing the pixel
3150 * mutliplier into the DPLL. */
3151 if (HAS_PCH_CPT(dev
)) {
3154 temp
= I915_READ(PCH_DPLL_SEL
);
3155 temp
|= TRANS_DPLL_ENABLE(pipe
);
3156 sel
= TRANS_DPLLB_SEL(pipe
);
3157 if (intel_crtc
->config
.shared_dpll
== DPLL_ID_PCH_PLL_B
)
3161 I915_WRITE(PCH_DPLL_SEL
, temp
);
3164 /* XXX: pch pll's can be enabled any time before we enable the PCH
3165 * transcoder, and we actually should do this to not upset any PCH
3166 * transcoder that already use the clock when we share it.
3168 * Note that enable_shared_dpll tries to do the right thing, but
3169 * get_shared_dpll unconditionally resets the pll - we need that to have
3170 * the right LVDS enable sequence. */
3171 ironlake_enable_shared_dpll(intel_crtc
);
3173 /* set transcoder timing, panel must allow it */
3174 assert_panel_unlocked(dev_priv
, pipe
);
3175 ironlake_pch_transcoder_set_timings(intel_crtc
, pipe
);
3177 intel_fdi_normal_train(crtc
);
3179 /* For PCH DP, enable TRANS_DP_CTL */
3180 if (HAS_PCH_CPT(dev
) &&
3181 (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
) ||
3182 intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
))) {
3183 u32 bpc
= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) >> 5;
3184 reg
= TRANS_DP_CTL(pipe
);
3185 temp
= I915_READ(reg
);
3186 temp
&= ~(TRANS_DP_PORT_SEL_MASK
|
3187 TRANS_DP_SYNC_MASK
|
3189 temp
|= (TRANS_DP_OUTPUT_ENABLE
|
3190 TRANS_DP_ENH_FRAMING
);
3191 temp
|= bpc
<< 9; /* same format but at 11:9 */
3193 if (crtc
->mode
.flags
& DRM_MODE_FLAG_PHSYNC
)
3194 temp
|= TRANS_DP_HSYNC_ACTIVE_HIGH
;
3195 if (crtc
->mode
.flags
& DRM_MODE_FLAG_PVSYNC
)
3196 temp
|= TRANS_DP_VSYNC_ACTIVE_HIGH
;
3198 switch (intel_trans_dp_port_sel(crtc
)) {
3200 temp
|= TRANS_DP_PORT_SEL_B
;
3203 temp
|= TRANS_DP_PORT_SEL_C
;
3206 temp
|= TRANS_DP_PORT_SEL_D
;
3212 I915_WRITE(reg
, temp
);
3215 ironlake_enable_pch_transcoder(dev_priv
, pipe
);
3218 static void lpt_pch_enable(struct drm_crtc
*crtc
)
3220 struct drm_device
*dev
= crtc
->dev
;
3221 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3222 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3223 enum transcoder cpu_transcoder
= intel_crtc
->config
.cpu_transcoder
;
3225 assert_pch_transcoder_disabled(dev_priv
, TRANSCODER_A
);
3227 lpt_program_iclkip(crtc
);
3229 /* Set transcoder timing. */
3230 ironlake_pch_transcoder_set_timings(intel_crtc
, PIPE_A
);
3232 lpt_enable_pch_transcoder(dev_priv
, cpu_transcoder
);
3235 static void intel_put_shared_dpll(struct intel_crtc
*crtc
)
3237 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
3242 if (pll
->refcount
== 0) {
3243 WARN(1, "bad %s refcount\n", pll
->name
);
3247 if (--pll
->refcount
== 0) {
3249 WARN_ON(pll
->active
);
3252 crtc
->config
.shared_dpll
= DPLL_ID_PRIVATE
;
3255 static struct intel_shared_dpll
*intel_get_shared_dpll(struct intel_crtc
*crtc
)
3257 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
3258 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
3259 enum intel_dpll_id i
;
3262 DRM_DEBUG_KMS("CRTC:%d dropping existing %s\n",
3263 crtc
->base
.base
.id
, pll
->name
);
3264 intel_put_shared_dpll(crtc
);
3267 if (HAS_PCH_IBX(dev_priv
->dev
)) {
3268 /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
3269 i
= (enum intel_dpll_id
) crtc
->pipe
;
3270 pll
= &dev_priv
->shared_dplls
[i
];
3272 DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n",
3273 crtc
->base
.base
.id
, pll
->name
);
3278 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
3279 pll
= &dev_priv
->shared_dplls
[i
];
3281 /* Only want to check enabled timings first */
3282 if (pll
->refcount
== 0)
3285 if (memcmp(&crtc
->config
.dpll_hw_state
, &pll
->hw_state
,
3286 sizeof(pll
->hw_state
)) == 0) {
3287 DRM_DEBUG_KMS("CRTC:%d sharing existing %s (refcount %d, ative %d)\n",
3289 pll
->name
, pll
->refcount
, pll
->active
);
3295 /* Ok no matching timings, maybe there's a free one? */
3296 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
3297 pll
= &dev_priv
->shared_dplls
[i
];
3298 if (pll
->refcount
== 0) {
3299 DRM_DEBUG_KMS("CRTC:%d allocated %s\n",
3300 crtc
->base
.base
.id
, pll
->name
);
3308 crtc
->config
.shared_dpll
= i
;
3309 DRM_DEBUG_DRIVER("using %s for pipe %c\n", pll
->name
,
3310 pipe_name(crtc
->pipe
));
3312 if (pll
->active
== 0) {
3313 memcpy(&pll
->hw_state
, &crtc
->config
.dpll_hw_state
,
3314 sizeof(pll
->hw_state
));
3316 DRM_DEBUG_DRIVER("setting up %s\n", pll
->name
);
3318 assert_shared_dpll_disabled(dev_priv
, pll
);
3320 pll
->mode_set(dev_priv
, pll
);
3327 static void cpt_verify_modeset(struct drm_device
*dev
, int pipe
)
3329 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3330 int dslreg
= PIPEDSL(pipe
);
3333 temp
= I915_READ(dslreg
);
3335 if (wait_for(I915_READ(dslreg
) != temp
, 5)) {
3336 if (wait_for(I915_READ(dslreg
) != temp
, 5))
3337 DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe
));
3341 static void ironlake_pfit_enable(struct intel_crtc
*crtc
)
3343 struct drm_device
*dev
= crtc
->base
.dev
;
3344 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3345 int pipe
= crtc
->pipe
;
3347 if (crtc
->config
.pch_pfit
.enabled
) {
3348 /* Force use of hard-coded filter coefficients
3349 * as some pre-programmed values are broken,
3352 if (IS_IVYBRIDGE(dev
) || IS_HASWELL(dev
))
3353 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
|
3354 PF_PIPE_SEL_IVB(pipe
));
3356 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
);
3357 I915_WRITE(PF_WIN_POS(pipe
), crtc
->config
.pch_pfit
.pos
);
3358 I915_WRITE(PF_WIN_SZ(pipe
), crtc
->config
.pch_pfit
.size
);
3362 static void intel_enable_planes(struct drm_crtc
*crtc
)
3364 struct drm_device
*dev
= crtc
->dev
;
3365 enum pipe pipe
= to_intel_crtc(crtc
)->pipe
;
3366 struct intel_plane
*intel_plane
;
3368 list_for_each_entry(intel_plane
, &dev
->mode_config
.plane_list
, base
.head
)
3369 if (intel_plane
->pipe
== pipe
)
3370 intel_plane_restore(&intel_plane
->base
);
3373 static void intel_disable_planes(struct drm_crtc
*crtc
)
3375 struct drm_device
*dev
= crtc
->dev
;
3376 enum pipe pipe
= to_intel_crtc(crtc
)->pipe
;
3377 struct intel_plane
*intel_plane
;
3379 list_for_each_entry(intel_plane
, &dev
->mode_config
.plane_list
, base
.head
)
3380 if (intel_plane
->pipe
== pipe
)
3381 intel_plane_disable(&intel_plane
->base
);
3384 void hsw_enable_ips(struct intel_crtc
*crtc
)
3386 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
3388 if (!crtc
->config
.ips_enabled
)
3391 /* We can only enable IPS after we enable a plane and wait for a vblank.
3392 * We guarantee that the plane is enabled by calling intel_enable_ips
3393 * only after intel_enable_plane. And intel_enable_plane already waits
3394 * for a vblank, so all we need to do here is to enable the IPS bit. */
3395 assert_plane_enabled(dev_priv
, crtc
->plane
);
3396 if (IS_BROADWELL(crtc
->base
.dev
)) {
3397 mutex_lock(&dev_priv
->rps
.hw_lock
);
3398 WARN_ON(sandybridge_pcode_write(dev_priv
, DISPLAY_IPS_CONTROL
, 0xc0000000));
3399 mutex_unlock(&dev_priv
->rps
.hw_lock
);
3400 /* Quoting Art Runyan: "its not safe to expect any particular
3401 * value in IPS_CTL bit 31 after enabling IPS through the
3402 * mailbox." Therefore we need to defer waiting on the state
3404 * TODO: need to fix this for state checker
3407 I915_WRITE(IPS_CTL
, IPS_ENABLE
);
3408 /* The bit only becomes 1 in the next vblank, so this wait here
3409 * is essentially intel_wait_for_vblank. If we don't have this
3410 * and don't wait for vblanks until the end of crtc_enable, then
3411 * the HW state readout code will complain that the expected
3412 * IPS_CTL value is not the one we read. */
3413 if (wait_for(I915_READ_NOTRACE(IPS_CTL
) & IPS_ENABLE
, 50))
3414 DRM_ERROR("Timed out waiting for IPS enable\n");
3418 void hsw_disable_ips(struct intel_crtc
*crtc
)
3420 struct drm_device
*dev
= crtc
->base
.dev
;
3421 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3423 if (!crtc
->config
.ips_enabled
)
3426 assert_plane_enabled(dev_priv
, crtc
->plane
);
3427 if (IS_BROADWELL(crtc
->base
.dev
)) {
3428 mutex_lock(&dev_priv
->rps
.hw_lock
);
3429 WARN_ON(sandybridge_pcode_write(dev_priv
, DISPLAY_IPS_CONTROL
, 0));
3430 mutex_unlock(&dev_priv
->rps
.hw_lock
);
3432 I915_WRITE(IPS_CTL
, 0);
3433 POSTING_READ(IPS_CTL
);
3435 /* We need to wait for a vblank before we can disable the plane. */
3436 intel_wait_for_vblank(dev
, crtc
->pipe
);
3439 /** Loads the palette/gamma unit for the CRTC with the prepared values */
3440 static void intel_crtc_load_lut(struct drm_crtc
*crtc
)
3442 struct drm_device
*dev
= crtc
->dev
;
3443 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3444 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3445 enum pipe pipe
= intel_crtc
->pipe
;
3446 int palreg
= PALETTE(pipe
);
3448 bool reenable_ips
= false;
3450 /* The clocks have to be on to load the palette. */
3451 if (!crtc
->enabled
|| !intel_crtc
->active
)
3454 if (!HAS_PCH_SPLIT(dev_priv
->dev
)) {
3455 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DSI
))
3456 assert_dsi_pll_enabled(dev_priv
);
3458 assert_pll_enabled(dev_priv
, pipe
);
3461 /* use legacy palette for Ironlake */
3462 if (HAS_PCH_SPLIT(dev
))
3463 palreg
= LGC_PALETTE(pipe
);
3465 /* Workaround : Do not read or write the pipe palette/gamma data while
3466 * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled.
3468 if (intel_crtc
->config
.ips_enabled
&&
3469 ((I915_READ(GAMMA_MODE(pipe
)) & GAMMA_MODE_MODE_MASK
) ==
3470 GAMMA_MODE_MODE_SPLIT
)) {
3471 hsw_disable_ips(intel_crtc
);
3472 reenable_ips
= true;
3475 for (i
= 0; i
< 256; i
++) {
3476 I915_WRITE(palreg
+ 4 * i
,
3477 (intel_crtc
->lut_r
[i
] << 16) |
3478 (intel_crtc
->lut_g
[i
] << 8) |
3479 intel_crtc
->lut_b
[i
]);
3483 hsw_enable_ips(intel_crtc
);
3486 static void ironlake_crtc_enable(struct drm_crtc
*crtc
)
3488 struct drm_device
*dev
= crtc
->dev
;
3489 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3490 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3491 struct intel_encoder
*encoder
;
3492 int pipe
= intel_crtc
->pipe
;
3493 int plane
= intel_crtc
->plane
;
3495 WARN_ON(!crtc
->enabled
);
3497 if (intel_crtc
->active
)
3500 intel_crtc
->active
= true;
3502 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, true);
3503 intel_set_pch_fifo_underrun_reporting(dev
, pipe
, true);
3505 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3506 if (encoder
->pre_enable
)
3507 encoder
->pre_enable(encoder
);
3509 if (intel_crtc
->config
.has_pch_encoder
) {
3510 /* Note: FDI PLL enabling _must_ be done before we enable the
3511 * cpu pipes, hence this is separate from all the other fdi/pch
3513 ironlake_fdi_pll_enable(intel_crtc
);
3515 assert_fdi_tx_disabled(dev_priv
, pipe
);
3516 assert_fdi_rx_disabled(dev_priv
, pipe
);
3519 ironlake_pfit_enable(intel_crtc
);
3522 * On ILK+ LUT must be loaded before the pipe is running but with
3525 intel_crtc_load_lut(crtc
);
3527 intel_update_watermarks(crtc
);
3528 intel_enable_pipe(dev_priv
, pipe
,
3529 intel_crtc
->config
.has_pch_encoder
, false);
3530 intel_enable_primary_plane(dev_priv
, plane
, pipe
);
3531 intel_enable_planes(crtc
);
3532 intel_crtc_update_cursor(crtc
, true);
3534 if (intel_crtc
->config
.has_pch_encoder
)
3535 ironlake_pch_enable(crtc
);
3537 mutex_lock(&dev
->struct_mutex
);
3538 intel_update_fbc(dev
);
3539 mutex_unlock(&dev
->struct_mutex
);
3541 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3542 encoder
->enable(encoder
);
3544 if (HAS_PCH_CPT(dev
))
3545 cpt_verify_modeset(dev
, intel_crtc
->pipe
);
3548 * There seems to be a race in PCH platform hw (at least on some
3549 * outputs) where an enabled pipe still completes any pageflip right
3550 * away (as if the pipe is off) instead of waiting for vblank. As soon
3551 * as the first vblank happend, everything works as expected. Hence just
3552 * wait for one vblank before returning to avoid strange things
3555 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
3558 /* IPS only exists on ULT machines and is tied to pipe A. */
3559 static bool hsw_crtc_supports_ips(struct intel_crtc
*crtc
)
3561 return HAS_IPS(crtc
->base
.dev
) && crtc
->pipe
== PIPE_A
;
3564 static void haswell_crtc_enable_planes(struct drm_crtc
*crtc
)
3566 struct drm_device
*dev
= crtc
->dev
;
3567 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3568 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3569 int pipe
= intel_crtc
->pipe
;
3570 int plane
= intel_crtc
->plane
;
3572 intel_enable_primary_plane(dev_priv
, plane
, pipe
);
3573 intel_enable_planes(crtc
);
3574 intel_crtc_update_cursor(crtc
, true);
3576 hsw_enable_ips(intel_crtc
);
3578 mutex_lock(&dev
->struct_mutex
);
3579 intel_update_fbc(dev
);
3580 mutex_unlock(&dev
->struct_mutex
);
3583 static void haswell_crtc_disable_planes(struct drm_crtc
*crtc
)
3585 struct drm_device
*dev
= crtc
->dev
;
3586 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3587 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3588 int pipe
= intel_crtc
->pipe
;
3589 int plane
= intel_crtc
->plane
;
3591 intel_crtc_wait_for_pending_flips(crtc
);
3592 drm_vblank_off(dev
, pipe
);
3594 /* FBC must be disabled before disabling the plane on HSW. */
3595 if (dev_priv
->fbc
.plane
== plane
)
3596 intel_disable_fbc(dev
);
3598 hsw_disable_ips(intel_crtc
);
3600 intel_crtc_update_cursor(crtc
, false);
3601 intel_disable_planes(crtc
);
3602 intel_disable_primary_plane(dev_priv
, plane
, pipe
);
3606 * This implements the workaround described in the "notes" section of the mode
3607 * set sequence documentation. When going from no pipes or single pipe to
3608 * multiple pipes, and planes are enabled after the pipe, we need to wait at
3609 * least 2 vblanks on the first pipe before enabling planes on the second pipe.
3611 static void haswell_mode_set_planes_workaround(struct intel_crtc
*crtc
)
3613 struct drm_device
*dev
= crtc
->base
.dev
;
3614 struct intel_crtc
*crtc_it
, *other_active_crtc
= NULL
;
3616 /* We want to get the other_active_crtc only if there's only 1 other
3618 list_for_each_entry(crtc_it
, &dev
->mode_config
.crtc_list
, base
.head
) {
3619 if (!crtc_it
->active
|| crtc_it
== crtc
)
3622 if (other_active_crtc
)
3625 other_active_crtc
= crtc_it
;
3627 if (!other_active_crtc
)
3630 intel_wait_for_vblank(dev
, other_active_crtc
->pipe
);
3631 intel_wait_for_vblank(dev
, other_active_crtc
->pipe
);
3634 static void haswell_crtc_enable(struct drm_crtc
*crtc
)
3636 struct drm_device
*dev
= crtc
->dev
;
3637 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3638 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3639 struct intel_encoder
*encoder
;
3640 int pipe
= intel_crtc
->pipe
;
3642 WARN_ON(!crtc
->enabled
);
3644 if (intel_crtc
->active
)
3647 intel_crtc
->active
= true;
3649 intel_set_cpu_fifo_underrun_reporting(dev
, pipe
, true);
3650 if (intel_crtc
->config
.has_pch_encoder
)
3651 intel_set_pch_fifo_underrun_reporting(dev
, TRANSCODER_A
, true);
3653 if (intel_crtc
->config
.has_pch_encoder
)
3654 dev_priv
->display
.fdi_link_train(crtc
);
3656 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3657 if (encoder
->pre_enable
)
3658 encoder
->pre_enable(encoder
);
3660 intel_ddi_enable_pipe_clock(intel_crtc
);
3662 ironlake_pfit_enable(intel_crtc
);
3665 * On ILK+ LUT must be loaded before the pipe is running but with
3668 intel_crtc_load_lut(crtc
);
3670 intel_ddi_set_pipe_settings(crtc
);
3671 intel_ddi_enable_transcoder_func(crtc
);
3673 intel_update_watermarks(crtc
);
3674 intel_enable_pipe(dev_priv
, pipe
,
3675 intel_crtc
->config
.has_pch_encoder
, false);
3677 if (intel_crtc
->config
.has_pch_encoder
)
3678 lpt_pch_enable(crtc
);
3680 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
3681 encoder
->enable(encoder
);
3682 intel_opregion_notify_encoder(encoder
, true);
3685 /* If we change the relative order between pipe/planes enabling, we need
3686 * to change the workaround. */
3687 haswell_mode_set_planes_workaround(intel_crtc
);
3688 haswell_crtc_enable_planes(crtc
);
3691 * There seems to be a race in PCH platform hw (at least on some
3692 * outputs) where an enabled pipe still completes any pageflip right
3693 * away (as if the pipe is off) instead of waiting for vblank. As soon
3694 * as the first vblank happend, everything works as expected. Hence just
3695 * wait for one vblank before returning to avoid strange things
3698 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
3701 static void ironlake_pfit_disable(struct intel_crtc
*crtc
)
3703 struct drm_device
*dev
= crtc
->base
.dev
;
3704 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3705 int pipe
= crtc
->pipe
;
3707 /* To avoid upsetting the power well on haswell only disable the pfit if
3708 * it's in use. The hw state code will make sure we get this right. */
3709 if (crtc
->config
.pch_pfit
.enabled
) {
3710 I915_WRITE(PF_CTL(pipe
), 0);
3711 I915_WRITE(PF_WIN_POS(pipe
), 0);
3712 I915_WRITE(PF_WIN_SZ(pipe
), 0);
3716 static void ironlake_crtc_disable(struct drm_crtc
*crtc
)
3718 struct drm_device
*dev
= crtc
->dev
;
3719 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3720 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3721 struct intel_encoder
*encoder
;
3722 int pipe
= intel_crtc
->pipe
;
3723 int plane
= intel_crtc
->plane
;
3727 if (!intel_crtc
->active
)
3730 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3731 encoder
->disable(encoder
);
3733 intel_crtc_wait_for_pending_flips(crtc
);
3734 drm_vblank_off(dev
, pipe
);
3736 if (dev_priv
->fbc
.plane
== plane
)
3737 intel_disable_fbc(dev
);
3739 intel_crtc_update_cursor(crtc
, false);
3740 intel_disable_planes(crtc
);
3741 intel_disable_primary_plane(dev_priv
, plane
, pipe
);
3743 if (intel_crtc
->config
.has_pch_encoder
)
3744 intel_set_pch_fifo_underrun_reporting(dev
, pipe
, false);
3746 intel_disable_pipe(dev_priv
, pipe
);
3748 ironlake_pfit_disable(intel_crtc
);
3750 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3751 if (encoder
->post_disable
)
3752 encoder
->post_disable(encoder
);
3754 if (intel_crtc
->config
.has_pch_encoder
) {
3755 ironlake_fdi_disable(crtc
);
3757 ironlake_disable_pch_transcoder(dev_priv
, pipe
);
3758 intel_set_pch_fifo_underrun_reporting(dev
, pipe
, true);
3760 if (HAS_PCH_CPT(dev
)) {
3761 /* disable TRANS_DP_CTL */
3762 reg
= TRANS_DP_CTL(pipe
);
3763 temp
= I915_READ(reg
);
3764 temp
&= ~(TRANS_DP_OUTPUT_ENABLE
|
3765 TRANS_DP_PORT_SEL_MASK
);
3766 temp
|= TRANS_DP_PORT_SEL_NONE
;
3767 I915_WRITE(reg
, temp
);
3769 /* disable DPLL_SEL */
3770 temp
= I915_READ(PCH_DPLL_SEL
);
3771 temp
&= ~(TRANS_DPLL_ENABLE(pipe
) | TRANS_DPLLB_SEL(pipe
));
3772 I915_WRITE(PCH_DPLL_SEL
, temp
);
3775 /* disable PCH DPLL */
3776 intel_disable_shared_dpll(intel_crtc
);
3778 ironlake_fdi_pll_disable(intel_crtc
);
3781 intel_crtc
->active
= false;
3782 intel_update_watermarks(crtc
);
3784 mutex_lock(&dev
->struct_mutex
);
3785 intel_update_fbc(dev
);
3786 mutex_unlock(&dev
->struct_mutex
);
3789 static void haswell_crtc_disable(struct drm_crtc
*crtc
)
3791 struct drm_device
*dev
= crtc
->dev
;
3792 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3793 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3794 struct intel_encoder
*encoder
;
3795 int pipe
= intel_crtc
->pipe
;
3796 enum transcoder cpu_transcoder
= intel_crtc
->config
.cpu_transcoder
;
3798 if (!intel_crtc
->active
)
3801 haswell_crtc_disable_planes(crtc
);
3803 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
3804 intel_opregion_notify_encoder(encoder
, false);
3805 encoder
->disable(encoder
);
3808 if (intel_crtc
->config
.has_pch_encoder
)
3809 intel_set_pch_fifo_underrun_reporting(dev
, TRANSCODER_A
, false);
3810 intel_disable_pipe(dev_priv
, pipe
);
3812 intel_ddi_disable_transcoder_func(dev_priv
, cpu_transcoder
);
3814 ironlake_pfit_disable(intel_crtc
);
3816 intel_ddi_disable_pipe_clock(intel_crtc
);
3818 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3819 if (encoder
->post_disable
)
3820 encoder
->post_disable(encoder
);
3822 if (intel_crtc
->config
.has_pch_encoder
) {
3823 lpt_disable_pch_transcoder(dev_priv
);
3824 intel_set_pch_fifo_underrun_reporting(dev
, TRANSCODER_A
, true);
3825 intel_ddi_fdi_disable(crtc
);
3828 intel_crtc
->active
= false;
3829 intel_update_watermarks(crtc
);
3831 mutex_lock(&dev
->struct_mutex
);
3832 intel_update_fbc(dev
);
3833 mutex_unlock(&dev
->struct_mutex
);
3836 static void ironlake_crtc_off(struct drm_crtc
*crtc
)
3838 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3839 intel_put_shared_dpll(intel_crtc
);
3842 static void haswell_crtc_off(struct drm_crtc
*crtc
)
3844 intel_ddi_put_crtc_pll(crtc
);
3847 static void intel_crtc_dpms_overlay(struct intel_crtc
*intel_crtc
, bool enable
)
3849 if (!enable
&& intel_crtc
->overlay
) {
3850 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3851 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3853 mutex_lock(&dev
->struct_mutex
);
3854 dev_priv
->mm
.interruptible
= false;
3855 (void) intel_overlay_switch_off(intel_crtc
->overlay
);
3856 dev_priv
->mm
.interruptible
= true;
3857 mutex_unlock(&dev
->struct_mutex
);
3860 /* Let userspace switch the overlay on again. In most cases userspace
3861 * has to recompute where to put it anyway.
3866 * i9xx_fixup_plane - ugly workaround for G45 to fire up the hardware
3867 * cursor plane briefly if not already running after enabling the display
3869 * This workaround avoids occasional blank screens when self refresh is
3873 g4x_fixup_plane(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
3875 u32 cntl
= I915_READ(CURCNTR(pipe
));
3877 if ((cntl
& CURSOR_MODE
) == 0) {
3878 u32 fw_bcl_self
= I915_READ(FW_BLC_SELF
);
3880 I915_WRITE(FW_BLC_SELF
, fw_bcl_self
& ~FW_BLC_SELF_EN
);
3881 I915_WRITE(CURCNTR(pipe
), CURSOR_MODE_64_ARGB_AX
);
3882 intel_wait_for_vblank(dev_priv
->dev
, pipe
);
3883 I915_WRITE(CURCNTR(pipe
), cntl
);
3884 I915_WRITE(CURBASE(pipe
), I915_READ(CURBASE(pipe
)));
3885 I915_WRITE(FW_BLC_SELF
, fw_bcl_self
);
3889 static void i9xx_pfit_enable(struct intel_crtc
*crtc
)
3891 struct drm_device
*dev
= crtc
->base
.dev
;
3892 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3893 struct intel_crtc_config
*pipe_config
= &crtc
->config
;
3895 if (!crtc
->config
.gmch_pfit
.control
)
3899 * The panel fitter should only be adjusted whilst the pipe is disabled,
3900 * according to register description and PRM.
3902 WARN_ON(I915_READ(PFIT_CONTROL
) & PFIT_ENABLE
);
3903 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
3905 I915_WRITE(PFIT_PGM_RATIOS
, pipe_config
->gmch_pfit
.pgm_ratios
);
3906 I915_WRITE(PFIT_CONTROL
, pipe_config
->gmch_pfit
.control
);
3908 /* Border color in case we don't scale up to the full screen. Black by
3909 * default, change to something else for debugging. */
3910 I915_WRITE(BCLRPAT(crtc
->pipe
), 0);
3913 static void valleyview_crtc_enable(struct drm_crtc
*crtc
)
3915 struct drm_device
*dev
= crtc
->dev
;
3916 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3917 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3918 struct intel_encoder
*encoder
;
3919 int pipe
= intel_crtc
->pipe
;
3920 int plane
= intel_crtc
->plane
;
3923 WARN_ON(!crtc
->enabled
);
3925 if (intel_crtc
->active
)
3928 intel_crtc
->active
= true;
3930 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3931 if (encoder
->pre_pll_enable
)
3932 encoder
->pre_pll_enable(encoder
);
3934 is_dsi
= intel_pipe_has_type(crtc
, INTEL_OUTPUT_DSI
);
3937 vlv_enable_pll(intel_crtc
);
3939 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3940 if (encoder
->pre_enable
)
3941 encoder
->pre_enable(encoder
);
3943 i9xx_pfit_enable(intel_crtc
);
3945 intel_crtc_load_lut(crtc
);
3947 intel_update_watermarks(crtc
);
3948 intel_enable_pipe(dev_priv
, pipe
, false, is_dsi
);
3949 intel_enable_primary_plane(dev_priv
, plane
, pipe
);
3950 intel_enable_planes(crtc
);
3951 intel_crtc_update_cursor(crtc
, true);
3953 intel_update_fbc(dev
);
3955 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3956 encoder
->enable(encoder
);
3959 static void i9xx_crtc_enable(struct drm_crtc
*crtc
)
3961 struct drm_device
*dev
= crtc
->dev
;
3962 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3963 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3964 struct intel_encoder
*encoder
;
3965 int pipe
= intel_crtc
->pipe
;
3966 int plane
= intel_crtc
->plane
;
3968 WARN_ON(!crtc
->enabled
);
3970 if (intel_crtc
->active
)
3973 intel_crtc
->active
= true;
3975 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3976 if (encoder
->pre_enable
)
3977 encoder
->pre_enable(encoder
);
3979 i9xx_enable_pll(intel_crtc
);
3981 i9xx_pfit_enable(intel_crtc
);
3983 intel_crtc_load_lut(crtc
);
3985 intel_update_watermarks(crtc
);
3986 intel_enable_pipe(dev_priv
, pipe
, false, false);
3987 intel_enable_primary_plane(dev_priv
, plane
, pipe
);
3988 intel_enable_planes(crtc
);
3989 /* The fixup needs to happen before cursor is enabled */
3991 g4x_fixup_plane(dev_priv
, pipe
);
3992 intel_crtc_update_cursor(crtc
, true);
3994 /* Give the overlay scaler a chance to enable if it's on this pipe */
3995 intel_crtc_dpms_overlay(intel_crtc
, true);
3997 intel_update_fbc(dev
);
3999 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4000 encoder
->enable(encoder
);
4003 static void i9xx_pfit_disable(struct intel_crtc
*crtc
)
4005 struct drm_device
*dev
= crtc
->base
.dev
;
4006 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4008 if (!crtc
->config
.gmch_pfit
.control
)
4011 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
4013 DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n",
4014 I915_READ(PFIT_CONTROL
));
4015 I915_WRITE(PFIT_CONTROL
, 0);
4018 static void i9xx_crtc_disable(struct drm_crtc
*crtc
)
4020 struct drm_device
*dev
= crtc
->dev
;
4021 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4022 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4023 struct intel_encoder
*encoder
;
4024 int pipe
= intel_crtc
->pipe
;
4025 int plane
= intel_crtc
->plane
;
4027 if (!intel_crtc
->active
)
4030 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4031 encoder
->disable(encoder
);
4033 /* Give the overlay scaler a chance to disable if it's on this pipe */
4034 intel_crtc_wait_for_pending_flips(crtc
);
4035 drm_vblank_off(dev
, pipe
);
4037 if (dev_priv
->fbc
.plane
== plane
)
4038 intel_disable_fbc(dev
);
4040 intel_crtc_dpms_overlay(intel_crtc
, false);
4041 intel_crtc_update_cursor(crtc
, false);
4042 intel_disable_planes(crtc
);
4043 intel_disable_primary_plane(dev_priv
, plane
, pipe
);
4045 intel_disable_pipe(dev_priv
, pipe
);
4047 i9xx_pfit_disable(intel_crtc
);
4049 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4050 if (encoder
->post_disable
)
4051 encoder
->post_disable(encoder
);
4053 if (IS_VALLEYVIEW(dev
) && !intel_pipe_has_type(crtc
, INTEL_OUTPUT_DSI
))
4054 vlv_disable_pll(dev_priv
, pipe
);
4055 else if (!IS_VALLEYVIEW(dev
))
4056 i9xx_disable_pll(dev_priv
, pipe
);
4058 intel_crtc
->active
= false;
4059 intel_update_watermarks(crtc
);
4061 intel_update_fbc(dev
);
4064 static void i9xx_crtc_off(struct drm_crtc
*crtc
)
4068 static void intel_crtc_update_sarea(struct drm_crtc
*crtc
,
4071 struct drm_device
*dev
= crtc
->dev
;
4072 struct drm_i915_master_private
*master_priv
;
4073 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4074 int pipe
= intel_crtc
->pipe
;
4076 if (!dev
->primary
->master
)
4079 master_priv
= dev
->primary
->master
->driver_priv
;
4080 if (!master_priv
->sarea_priv
)
4085 master_priv
->sarea_priv
->pipeA_w
= enabled
? crtc
->mode
.hdisplay
: 0;
4086 master_priv
->sarea_priv
->pipeA_h
= enabled
? crtc
->mode
.vdisplay
: 0;
4089 master_priv
->sarea_priv
->pipeB_w
= enabled
? crtc
->mode
.hdisplay
: 0;
4090 master_priv
->sarea_priv
->pipeB_h
= enabled
? crtc
->mode
.vdisplay
: 0;
4093 DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe
));
4099 * Sets the power management mode of the pipe and plane.
4101 void intel_crtc_update_dpms(struct drm_crtc
*crtc
)
4103 struct drm_device
*dev
= crtc
->dev
;
4104 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4105 struct intel_encoder
*intel_encoder
;
4106 bool enable
= false;
4108 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
)
4109 enable
|= intel_encoder
->connectors_active
;
4112 dev_priv
->display
.crtc_enable(crtc
);
4114 dev_priv
->display
.crtc_disable(crtc
);
4116 intel_crtc_update_sarea(crtc
, enable
);
4119 static void intel_crtc_disable(struct drm_crtc
*crtc
)
4121 struct drm_device
*dev
= crtc
->dev
;
4122 struct drm_connector
*connector
;
4123 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4124 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4126 /* crtc should still be enabled when we disable it. */
4127 WARN_ON(!crtc
->enabled
);
4129 dev_priv
->display
.crtc_disable(crtc
);
4130 intel_crtc
->eld_vld
= false;
4131 intel_crtc_update_sarea(crtc
, false);
4132 dev_priv
->display
.off(crtc
);
4134 assert_plane_disabled(dev
->dev_private
, to_intel_crtc(crtc
)->plane
);
4135 assert_cursor_disabled(dev_priv
, to_intel_crtc(crtc
)->pipe
);
4136 assert_pipe_disabled(dev
->dev_private
, to_intel_crtc(crtc
)->pipe
);
4139 mutex_lock(&dev
->struct_mutex
);
4140 intel_unpin_fb_obj(to_intel_framebuffer(crtc
->fb
)->obj
);
4141 mutex_unlock(&dev
->struct_mutex
);
4145 /* Update computed state. */
4146 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
4147 if (!connector
->encoder
|| !connector
->encoder
->crtc
)
4150 if (connector
->encoder
->crtc
!= crtc
)
4153 connector
->dpms
= DRM_MODE_DPMS_OFF
;
4154 to_intel_encoder(connector
->encoder
)->connectors_active
= false;
4158 void intel_encoder_destroy(struct drm_encoder
*encoder
)
4160 struct intel_encoder
*intel_encoder
= to_intel_encoder(encoder
);
4162 drm_encoder_cleanup(encoder
);
4163 kfree(intel_encoder
);
4166 /* Simple dpms helper for encoders with just one connector, no cloning and only
4167 * one kind of off state. It clamps all !ON modes to fully OFF and changes the
4168 * state of the entire output pipe. */
4169 static void intel_encoder_dpms(struct intel_encoder
*encoder
, int mode
)
4171 if (mode
== DRM_MODE_DPMS_ON
) {
4172 encoder
->connectors_active
= true;
4174 intel_crtc_update_dpms(encoder
->base
.crtc
);
4176 encoder
->connectors_active
= false;
4178 intel_crtc_update_dpms(encoder
->base
.crtc
);
4182 /* Cross check the actual hw state with our own modeset state tracking (and it's
4183 * internal consistency). */
4184 static void intel_connector_check_state(struct intel_connector
*connector
)
4186 if (connector
->get_hw_state(connector
)) {
4187 struct intel_encoder
*encoder
= connector
->encoder
;
4188 struct drm_crtc
*crtc
;
4189 bool encoder_enabled
;
4192 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
4193 connector
->base
.base
.id
,
4194 drm_get_connector_name(&connector
->base
));
4196 WARN(connector
->base
.dpms
== DRM_MODE_DPMS_OFF
,
4197 "wrong connector dpms state\n");
4198 WARN(connector
->base
.encoder
!= &encoder
->base
,
4199 "active connector not linked to encoder\n");
4200 WARN(!encoder
->connectors_active
,
4201 "encoder->connectors_active not set\n");
4203 encoder_enabled
= encoder
->get_hw_state(encoder
, &pipe
);
4204 WARN(!encoder_enabled
, "encoder not enabled\n");
4205 if (WARN_ON(!encoder
->base
.crtc
))
4208 crtc
= encoder
->base
.crtc
;
4210 WARN(!crtc
->enabled
, "crtc not enabled\n");
4211 WARN(!to_intel_crtc(crtc
)->active
, "crtc not active\n");
4212 WARN(pipe
!= to_intel_crtc(crtc
)->pipe
,
4213 "encoder active on the wrong pipe\n");
4217 /* Even simpler default implementation, if there's really no special case to
4219 void intel_connector_dpms(struct drm_connector
*connector
, int mode
)
4221 /* All the simple cases only support two dpms states. */
4222 if (mode
!= DRM_MODE_DPMS_ON
)
4223 mode
= DRM_MODE_DPMS_OFF
;
4225 if (mode
== connector
->dpms
)
4228 connector
->dpms
= mode
;
4230 /* Only need to change hw state when actually enabled */
4231 if (connector
->encoder
)
4232 intel_encoder_dpms(to_intel_encoder(connector
->encoder
), mode
);
4234 intel_modeset_check_state(connector
->dev
);
4237 /* Simple connector->get_hw_state implementation for encoders that support only
4238 * one connector and no cloning and hence the encoder state determines the state
4239 * of the connector. */
4240 bool intel_connector_get_hw_state(struct intel_connector
*connector
)
4243 struct intel_encoder
*encoder
= connector
->encoder
;
4245 return encoder
->get_hw_state(encoder
, &pipe
);
4248 static bool ironlake_check_fdi_lanes(struct drm_device
*dev
, enum pipe pipe
,
4249 struct intel_crtc_config
*pipe_config
)
4251 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4252 struct intel_crtc
*pipe_B_crtc
=
4253 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[PIPE_B
]);
4255 DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n",
4256 pipe_name(pipe
), pipe_config
->fdi_lanes
);
4257 if (pipe_config
->fdi_lanes
> 4) {
4258 DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n",
4259 pipe_name(pipe
), pipe_config
->fdi_lanes
);
4263 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
4264 if (pipe_config
->fdi_lanes
> 2) {
4265 DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n",
4266 pipe_config
->fdi_lanes
);
4273 if (INTEL_INFO(dev
)->num_pipes
== 2)
4276 /* Ivybridge 3 pipe is really complicated */
4281 if (dev_priv
->pipe_to_crtc_mapping
[PIPE_C
]->enabled
&&
4282 pipe_config
->fdi_lanes
> 2) {
4283 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
4284 pipe_name(pipe
), pipe_config
->fdi_lanes
);
4289 if (!pipe_has_enabled_pch(pipe_B_crtc
) ||
4290 pipe_B_crtc
->config
.fdi_lanes
<= 2) {
4291 if (pipe_config
->fdi_lanes
> 2) {
4292 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
4293 pipe_name(pipe
), pipe_config
->fdi_lanes
);
4297 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
4307 static int ironlake_fdi_compute_config(struct intel_crtc
*intel_crtc
,
4308 struct intel_crtc_config
*pipe_config
)
4310 struct drm_device
*dev
= intel_crtc
->base
.dev
;
4311 struct drm_display_mode
*adjusted_mode
= &pipe_config
->adjusted_mode
;
4312 int lane
, link_bw
, fdi_dotclock
;
4313 bool setup_ok
, needs_recompute
= false;
4316 /* FDI is a binary signal running at ~2.7GHz, encoding
4317 * each output octet as 10 bits. The actual frequency
4318 * is stored as a divider into a 100MHz clock, and the
4319 * mode pixel clock is stored in units of 1KHz.
4320 * Hence the bw of each lane in terms of the mode signal
4323 link_bw
= intel_fdi_link_freq(dev
) * MHz(100)/KHz(1)/10;
4325 fdi_dotclock
= adjusted_mode
->crtc_clock
;
4327 lane
= ironlake_get_lanes_required(fdi_dotclock
, link_bw
,
4328 pipe_config
->pipe_bpp
);
4330 pipe_config
->fdi_lanes
= lane
;
4332 intel_link_compute_m_n(pipe_config
->pipe_bpp
, lane
, fdi_dotclock
,
4333 link_bw
, &pipe_config
->fdi_m_n
);
4335 setup_ok
= ironlake_check_fdi_lanes(intel_crtc
->base
.dev
,
4336 intel_crtc
->pipe
, pipe_config
);
4337 if (!setup_ok
&& pipe_config
->pipe_bpp
> 6*3) {
4338 pipe_config
->pipe_bpp
-= 2*3;
4339 DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n",
4340 pipe_config
->pipe_bpp
);
4341 needs_recompute
= true;
4342 pipe_config
->bw_constrained
= true;
4347 if (needs_recompute
)
4350 return setup_ok
? 0 : -EINVAL
;
4353 static void hsw_compute_ips_config(struct intel_crtc
*crtc
,
4354 struct intel_crtc_config
*pipe_config
)
4356 pipe_config
->ips_enabled
= i915_enable_ips
&&
4357 hsw_crtc_supports_ips(crtc
) &&
4358 pipe_config
->pipe_bpp
<= 24;
4361 static int intel_crtc_compute_config(struct intel_crtc
*crtc
,
4362 struct intel_crtc_config
*pipe_config
)
4364 struct drm_device
*dev
= crtc
->base
.dev
;
4365 struct drm_display_mode
*adjusted_mode
= &pipe_config
->adjusted_mode
;
4367 /* FIXME should check pixel clock limits on all platforms */
4368 if (INTEL_INFO(dev
)->gen
< 4) {
4369 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4371 dev_priv
->display
.get_display_clock_speed(dev
);
4374 * Enable pixel doubling when the dot clock
4375 * is > 90% of the (display) core speed.
4377 * GDG double wide on either pipe,
4378 * otherwise pipe A only.
4380 if ((crtc
->pipe
== PIPE_A
|| IS_I915G(dev
)) &&
4381 adjusted_mode
->crtc_clock
> clock_limit
* 9 / 10) {
4383 pipe_config
->double_wide
= true;
4386 if (adjusted_mode
->crtc_clock
> clock_limit
* 9 / 10)
4391 * Pipe horizontal size must be even in:
4393 * - LVDS dual channel mode
4394 * - Double wide pipe
4396 if ((intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
) &&
4397 intel_is_dual_link_lvds(dev
)) || pipe_config
->double_wide
)
4398 pipe_config
->pipe_src_w
&= ~1;
4400 /* Cantiga+ cannot handle modes with a hsync front porch of 0.
4401 * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw.
4403 if ((INTEL_INFO(dev
)->gen
> 4 || IS_G4X(dev
)) &&
4404 adjusted_mode
->hsync_start
== adjusted_mode
->hdisplay
)
4407 if ((IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) && pipe_config
->pipe_bpp
> 10*3) {
4408 pipe_config
->pipe_bpp
= 10*3; /* 12bpc is gen5+ */
4409 } else if (INTEL_INFO(dev
)->gen
<= 4 && pipe_config
->pipe_bpp
> 8*3) {
4410 /* only a 8bpc pipe, with 6bpc dither through the panel fitter
4412 pipe_config
->pipe_bpp
= 8*3;
4416 hsw_compute_ips_config(crtc
, pipe_config
);
4418 /* XXX: PCH clock sharing is done in ->mode_set, so make sure the old
4419 * clock survives for now. */
4420 if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
4421 pipe_config
->shared_dpll
= crtc
->config
.shared_dpll
;
4423 if (pipe_config
->has_pch_encoder
)
4424 return ironlake_fdi_compute_config(crtc
, pipe_config
);
4429 static int valleyview_get_display_clock_speed(struct drm_device
*dev
)
4431 return 400000; /* FIXME */
4434 static int i945_get_display_clock_speed(struct drm_device
*dev
)
4439 static int i915_get_display_clock_speed(struct drm_device
*dev
)
4444 static int i9xx_misc_get_display_clock_speed(struct drm_device
*dev
)
4449 static int pnv_get_display_clock_speed(struct drm_device
*dev
)
4453 pci_read_config_word(dev
->pdev
, GCFGC
, &gcfgc
);
4455 switch (gcfgc
& GC_DISPLAY_CLOCK_MASK
) {
4456 case GC_DISPLAY_CLOCK_267_MHZ_PNV
:
4458 case GC_DISPLAY_CLOCK_333_MHZ_PNV
:
4460 case GC_DISPLAY_CLOCK_444_MHZ_PNV
:
4462 case GC_DISPLAY_CLOCK_200_MHZ_PNV
:
4465 DRM_ERROR("Unknown pnv display core clock 0x%04x\n", gcfgc
);
4466 case GC_DISPLAY_CLOCK_133_MHZ_PNV
:
4468 case GC_DISPLAY_CLOCK_167_MHZ_PNV
:
4473 static int i915gm_get_display_clock_speed(struct drm_device
*dev
)
4477 pci_read_config_word(dev
->pdev
, GCFGC
, &gcfgc
);
4479 if (gcfgc
& GC_LOW_FREQUENCY_ENABLE
)
4482 switch (gcfgc
& GC_DISPLAY_CLOCK_MASK
) {
4483 case GC_DISPLAY_CLOCK_333_MHZ
:
4486 case GC_DISPLAY_CLOCK_190_200_MHZ
:
4492 static int i865_get_display_clock_speed(struct drm_device
*dev
)
4497 static int i855_get_display_clock_speed(struct drm_device
*dev
)
4500 /* Assume that the hardware is in the high speed state. This
4501 * should be the default.
4503 switch (hpllcc
& GC_CLOCK_CONTROL_MASK
) {
4504 case GC_CLOCK_133_200
:
4505 case GC_CLOCK_100_200
:
4507 case GC_CLOCK_166_250
:
4509 case GC_CLOCK_100_133
:
4513 /* Shouldn't happen */
4517 static int i830_get_display_clock_speed(struct drm_device
*dev
)
4523 intel_reduce_m_n_ratio(uint32_t *num
, uint32_t *den
)
4525 while (*num
> DATA_LINK_M_N_MASK
||
4526 *den
> DATA_LINK_M_N_MASK
) {
4532 static void compute_m_n(unsigned int m
, unsigned int n
,
4533 uint32_t *ret_m
, uint32_t *ret_n
)
4535 *ret_n
= min_t(unsigned int, roundup_pow_of_two(n
), DATA_LINK_N_MAX
);
4536 *ret_m
= div_u64((uint64_t) m
* *ret_n
, n
);
4537 intel_reduce_m_n_ratio(ret_m
, ret_n
);
4541 intel_link_compute_m_n(int bits_per_pixel
, int nlanes
,
4542 int pixel_clock
, int link_clock
,
4543 struct intel_link_m_n
*m_n
)
4547 compute_m_n(bits_per_pixel
* pixel_clock
,
4548 link_clock
* nlanes
* 8,
4549 &m_n
->gmch_m
, &m_n
->gmch_n
);
4551 compute_m_n(pixel_clock
, link_clock
,
4552 &m_n
->link_m
, &m_n
->link_n
);
4555 static inline bool intel_panel_use_ssc(struct drm_i915_private
*dev_priv
)
4557 if (i915_panel_use_ssc
>= 0)
4558 return i915_panel_use_ssc
!= 0;
4559 return dev_priv
->vbt
.lvds_use_ssc
4560 && !(dev_priv
->quirks
& QUIRK_LVDS_SSC_DISABLE
);
4563 static int i9xx_get_refclk(struct drm_crtc
*crtc
, int num_connectors
)
4565 struct drm_device
*dev
= crtc
->dev
;
4566 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4569 if (IS_VALLEYVIEW(dev
)) {
4571 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) &&
4572 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2) {
4573 refclk
= dev_priv
->vbt
.lvds_ssc_freq
* 1000;
4574 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
4576 } else if (!IS_GEN2(dev
)) {
4585 static uint32_t pnv_dpll_compute_fp(struct dpll
*dpll
)
4587 return (1 << dpll
->n
) << 16 | dpll
->m2
;
4590 static uint32_t i9xx_dpll_compute_fp(struct dpll
*dpll
)
4592 return dpll
->n
<< 16 | dpll
->m1
<< 8 | dpll
->m2
;
4595 static void i9xx_update_pll_dividers(struct intel_crtc
*crtc
,
4596 intel_clock_t
*reduced_clock
)
4598 struct drm_device
*dev
= crtc
->base
.dev
;
4599 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4600 int pipe
= crtc
->pipe
;
4603 if (IS_PINEVIEW(dev
)) {
4604 fp
= pnv_dpll_compute_fp(&crtc
->config
.dpll
);
4606 fp2
= pnv_dpll_compute_fp(reduced_clock
);
4608 fp
= i9xx_dpll_compute_fp(&crtc
->config
.dpll
);
4610 fp2
= i9xx_dpll_compute_fp(reduced_clock
);
4613 I915_WRITE(FP0(pipe
), fp
);
4614 crtc
->config
.dpll_hw_state
.fp0
= fp
;
4616 crtc
->lowfreq_avail
= false;
4617 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
) &&
4618 reduced_clock
&& i915_powersave
) {
4619 I915_WRITE(FP1(pipe
), fp2
);
4620 crtc
->config
.dpll_hw_state
.fp1
= fp2
;
4621 crtc
->lowfreq_avail
= true;
4623 I915_WRITE(FP1(pipe
), fp
);
4624 crtc
->config
.dpll_hw_state
.fp1
= fp
;
4628 static void vlv_pllb_recal_opamp(struct drm_i915_private
*dev_priv
, enum pipe
4634 * PLLB opamp always calibrates to max value of 0x3f, force enable it
4635 * and set it to a reasonable value instead.
4637 reg_val
= vlv_dpio_read(dev_priv
, pipe
, DPIO_IREF(1));
4638 reg_val
&= 0xffffff00;
4639 reg_val
|= 0x00000030;
4640 vlv_dpio_write(dev_priv
, pipe
, DPIO_IREF(1), reg_val
);
4642 reg_val
= vlv_dpio_read(dev_priv
, pipe
, DPIO_CALIBRATION
);
4643 reg_val
&= 0x8cffffff;
4644 reg_val
= 0x8c000000;
4645 vlv_dpio_write(dev_priv
, pipe
, DPIO_CALIBRATION
, reg_val
);
4647 reg_val
= vlv_dpio_read(dev_priv
, pipe
, DPIO_IREF(1));
4648 reg_val
&= 0xffffff00;
4649 vlv_dpio_write(dev_priv
, pipe
, DPIO_IREF(1), reg_val
);
4651 reg_val
= vlv_dpio_read(dev_priv
, pipe
, DPIO_CALIBRATION
);
4652 reg_val
&= 0x00ffffff;
4653 reg_val
|= 0xb0000000;
4654 vlv_dpio_write(dev_priv
, pipe
, DPIO_CALIBRATION
, reg_val
);
4657 static void intel_pch_transcoder_set_m_n(struct intel_crtc
*crtc
,
4658 struct intel_link_m_n
*m_n
)
4660 struct drm_device
*dev
= crtc
->base
.dev
;
4661 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4662 int pipe
= crtc
->pipe
;
4664 I915_WRITE(PCH_TRANS_DATA_M1(pipe
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
4665 I915_WRITE(PCH_TRANS_DATA_N1(pipe
), m_n
->gmch_n
);
4666 I915_WRITE(PCH_TRANS_LINK_M1(pipe
), m_n
->link_m
);
4667 I915_WRITE(PCH_TRANS_LINK_N1(pipe
), m_n
->link_n
);
4670 static void intel_cpu_transcoder_set_m_n(struct intel_crtc
*crtc
,
4671 struct intel_link_m_n
*m_n
)
4673 struct drm_device
*dev
= crtc
->base
.dev
;
4674 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4675 int pipe
= crtc
->pipe
;
4676 enum transcoder transcoder
= crtc
->config
.cpu_transcoder
;
4678 if (INTEL_INFO(dev
)->gen
>= 5) {
4679 I915_WRITE(PIPE_DATA_M1(transcoder
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
4680 I915_WRITE(PIPE_DATA_N1(transcoder
), m_n
->gmch_n
);
4681 I915_WRITE(PIPE_LINK_M1(transcoder
), m_n
->link_m
);
4682 I915_WRITE(PIPE_LINK_N1(transcoder
), m_n
->link_n
);
4684 I915_WRITE(PIPE_DATA_M_G4X(pipe
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
4685 I915_WRITE(PIPE_DATA_N_G4X(pipe
), m_n
->gmch_n
);
4686 I915_WRITE(PIPE_LINK_M_G4X(pipe
), m_n
->link_m
);
4687 I915_WRITE(PIPE_LINK_N_G4X(pipe
), m_n
->link_n
);
4691 static void intel_dp_set_m_n(struct intel_crtc
*crtc
)
4693 if (crtc
->config
.has_pch_encoder
)
4694 intel_pch_transcoder_set_m_n(crtc
, &crtc
->config
.dp_m_n
);
4696 intel_cpu_transcoder_set_m_n(crtc
, &crtc
->config
.dp_m_n
);
4699 static void vlv_update_pll(struct intel_crtc
*crtc
)
4701 struct drm_device
*dev
= crtc
->base
.dev
;
4702 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4703 int pipe
= crtc
->pipe
;
4705 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
;
4706 u32 coreclk
, reg_val
, dpll_md
;
4708 mutex_lock(&dev_priv
->dpio_lock
);
4710 bestn
= crtc
->config
.dpll
.n
;
4711 bestm1
= crtc
->config
.dpll
.m1
;
4712 bestm2
= crtc
->config
.dpll
.m2
;
4713 bestp1
= crtc
->config
.dpll
.p1
;
4714 bestp2
= crtc
->config
.dpll
.p2
;
4716 /* See eDP HDMI DPIO driver vbios notes doc */
4718 /* PLL B needs special handling */
4720 vlv_pllb_recal_opamp(dev_priv
, pipe
);
4722 /* Set up Tx target for periodic Rcomp update */
4723 vlv_dpio_write(dev_priv
, pipe
, DPIO_IREF_BCAST
, 0x0100000f);
4725 /* Disable target IRef on PLL */
4726 reg_val
= vlv_dpio_read(dev_priv
, pipe
, DPIO_IREF_CTL(pipe
));
4727 reg_val
&= 0x00ffffff;
4728 vlv_dpio_write(dev_priv
, pipe
, DPIO_IREF_CTL(pipe
), reg_val
);
4730 /* Disable fast lock */
4731 vlv_dpio_write(dev_priv
, pipe
, DPIO_FASTCLK_DISABLE
, 0x610);
4733 /* Set idtafcrecal before PLL is enabled */
4734 mdiv
= ((bestm1
<< DPIO_M1DIV_SHIFT
) | (bestm2
& DPIO_M2DIV_MASK
));
4735 mdiv
|= ((bestp1
<< DPIO_P1_SHIFT
) | (bestp2
<< DPIO_P2_SHIFT
));
4736 mdiv
|= ((bestn
<< DPIO_N_SHIFT
));
4737 mdiv
|= (1 << DPIO_K_SHIFT
);
4740 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
4741 * but we don't support that).
4742 * Note: don't use the DAC post divider as it seems unstable.
4744 mdiv
|= (DPIO_POST_DIV_HDMIDP
<< DPIO_POST_DIV_SHIFT
);
4745 vlv_dpio_write(dev_priv
, pipe
, DPIO_DIV(pipe
), mdiv
);
4747 mdiv
|= DPIO_ENABLE_CALIBRATION
;
4748 vlv_dpio_write(dev_priv
, pipe
, DPIO_DIV(pipe
), mdiv
);
4750 /* Set HBR and RBR LPF coefficients */
4751 if (crtc
->config
.port_clock
== 162000 ||
4752 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_ANALOG
) ||
4753 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_HDMI
))
4754 vlv_dpio_write(dev_priv
, pipe
, DPIO_LPF_COEFF(pipe
),
4757 vlv_dpio_write(dev_priv
, pipe
, DPIO_LPF_COEFF(pipe
),
4760 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_EDP
) ||
4761 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DISPLAYPORT
)) {
4762 /* Use SSC source */
4764 vlv_dpio_write(dev_priv
, pipe
, DPIO_REFSFR(pipe
),
4767 vlv_dpio_write(dev_priv
, pipe
, DPIO_REFSFR(pipe
),
4769 } else { /* HDMI or VGA */
4770 /* Use bend source */
4772 vlv_dpio_write(dev_priv
, pipe
, DPIO_REFSFR(pipe
),
4775 vlv_dpio_write(dev_priv
, pipe
, DPIO_REFSFR(pipe
),
4779 coreclk
= vlv_dpio_read(dev_priv
, pipe
, DPIO_CORE_CLK(pipe
));
4780 coreclk
= (coreclk
& 0x0000ff00) | 0x01c00000;
4781 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DISPLAYPORT
) ||
4782 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_EDP
))
4783 coreclk
|= 0x01000000;
4784 vlv_dpio_write(dev_priv
, pipe
, DPIO_CORE_CLK(pipe
), coreclk
);
4786 vlv_dpio_write(dev_priv
, pipe
, DPIO_PLL_CML(pipe
), 0x87871000);
4788 /* Enable DPIO clock input */
4789 dpll
= DPLL_EXT_BUFFER_ENABLE_VLV
| DPLL_REFA_CLK_ENABLE_VLV
|
4790 DPLL_VGA_MODE_DIS
| DPLL_INTEGRATED_CLOCK_VLV
;
4791 /* We should never disable this, set it here for state tracking */
4793 dpll
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
4794 dpll
|= DPLL_VCO_ENABLE
;
4795 crtc
->config
.dpll_hw_state
.dpll
= dpll
;
4797 dpll_md
= (crtc
->config
.pixel_multiplier
- 1)
4798 << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
4799 crtc
->config
.dpll_hw_state
.dpll_md
= dpll_md
;
4801 if (crtc
->config
.has_dp_encoder
)
4802 intel_dp_set_m_n(crtc
);
4804 mutex_unlock(&dev_priv
->dpio_lock
);
4807 static void i9xx_update_pll(struct intel_crtc
*crtc
,
4808 intel_clock_t
*reduced_clock
,
4811 struct drm_device
*dev
= crtc
->base
.dev
;
4812 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4815 struct dpll
*clock
= &crtc
->config
.dpll
;
4817 i9xx_update_pll_dividers(crtc
, reduced_clock
);
4819 is_sdvo
= intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_SDVO
) ||
4820 intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_HDMI
);
4822 dpll
= DPLL_VGA_MODE_DIS
;
4824 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
))
4825 dpll
|= DPLLB_MODE_LVDS
;
4827 dpll
|= DPLLB_MODE_DAC_SERIAL
;
4829 if (IS_I945G(dev
) || IS_I945GM(dev
) || IS_G33(dev
)) {
4830 dpll
|= (crtc
->config
.pixel_multiplier
- 1)
4831 << SDVO_MULTIPLIER_SHIFT_HIRES
;
4835 dpll
|= DPLL_SDVO_HIGH_SPEED
;
4837 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DISPLAYPORT
))
4838 dpll
|= DPLL_SDVO_HIGH_SPEED
;
4840 /* compute bitmask from p1 value */
4841 if (IS_PINEVIEW(dev
))
4842 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
;
4844 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
4845 if (IS_G4X(dev
) && reduced_clock
)
4846 dpll
|= (1 << (reduced_clock
->p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
4848 switch (clock
->p2
) {
4850 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
4853 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
4856 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
4859 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
4862 if (INTEL_INFO(dev
)->gen
>= 4)
4863 dpll
|= (6 << PLL_LOAD_PULSE_PHASE_SHIFT
);
4865 if (crtc
->config
.sdvo_tv_clock
)
4866 dpll
|= PLL_REF_INPUT_TVCLKINBC
;
4867 else if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
) &&
4868 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
4869 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
4871 dpll
|= PLL_REF_INPUT_DREFCLK
;
4873 dpll
|= DPLL_VCO_ENABLE
;
4874 crtc
->config
.dpll_hw_state
.dpll
= dpll
;
4876 if (INTEL_INFO(dev
)->gen
>= 4) {
4877 u32 dpll_md
= (crtc
->config
.pixel_multiplier
- 1)
4878 << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
4879 crtc
->config
.dpll_hw_state
.dpll_md
= dpll_md
;
4882 if (crtc
->config
.has_dp_encoder
)
4883 intel_dp_set_m_n(crtc
);
4886 static void i8xx_update_pll(struct intel_crtc
*crtc
,
4887 intel_clock_t
*reduced_clock
,
4890 struct drm_device
*dev
= crtc
->base
.dev
;
4891 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4893 struct dpll
*clock
= &crtc
->config
.dpll
;
4895 i9xx_update_pll_dividers(crtc
, reduced_clock
);
4897 dpll
= DPLL_VGA_MODE_DIS
;
4899 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
)) {
4900 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
4903 dpll
|= PLL_P1_DIVIDE_BY_TWO
;
4905 dpll
|= (clock
->p1
- 2) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
4907 dpll
|= PLL_P2_DIVIDE_BY_4
;
4910 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_DVO
))
4911 dpll
|= DPLL_DVO_2X_MODE
;
4913 if (intel_pipe_has_type(&crtc
->base
, INTEL_OUTPUT_LVDS
) &&
4914 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
4915 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
4917 dpll
|= PLL_REF_INPUT_DREFCLK
;
4919 dpll
|= DPLL_VCO_ENABLE
;
4920 crtc
->config
.dpll_hw_state
.dpll
= dpll
;
4923 static void intel_set_pipe_timings(struct intel_crtc
*intel_crtc
)
4925 struct drm_device
*dev
= intel_crtc
->base
.dev
;
4926 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4927 enum pipe pipe
= intel_crtc
->pipe
;
4928 enum transcoder cpu_transcoder
= intel_crtc
->config
.cpu_transcoder
;
4929 struct drm_display_mode
*adjusted_mode
=
4930 &intel_crtc
->config
.adjusted_mode
;
4931 uint32_t vsyncshift
, crtc_vtotal
, crtc_vblank_end
;
4933 /* We need to be careful not to changed the adjusted mode, for otherwise
4934 * the hw state checker will get angry at the mismatch. */
4935 crtc_vtotal
= adjusted_mode
->crtc_vtotal
;
4936 crtc_vblank_end
= adjusted_mode
->crtc_vblank_end
;
4938 if (!IS_GEN2(dev
) && adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
) {
4939 /* the chip adds 2 halflines automatically */
4941 crtc_vblank_end
-= 1;
4942 vsyncshift
= adjusted_mode
->crtc_hsync_start
4943 - adjusted_mode
->crtc_htotal
/ 2;
4948 if (INTEL_INFO(dev
)->gen
> 3)
4949 I915_WRITE(VSYNCSHIFT(cpu_transcoder
), vsyncshift
);
4951 I915_WRITE(HTOTAL(cpu_transcoder
),
4952 (adjusted_mode
->crtc_hdisplay
- 1) |
4953 ((adjusted_mode
->crtc_htotal
- 1) << 16));
4954 I915_WRITE(HBLANK(cpu_transcoder
),
4955 (adjusted_mode
->crtc_hblank_start
- 1) |
4956 ((adjusted_mode
->crtc_hblank_end
- 1) << 16));
4957 I915_WRITE(HSYNC(cpu_transcoder
),
4958 (adjusted_mode
->crtc_hsync_start
- 1) |
4959 ((adjusted_mode
->crtc_hsync_end
- 1) << 16));
4961 I915_WRITE(VTOTAL(cpu_transcoder
),
4962 (adjusted_mode
->crtc_vdisplay
- 1) |
4963 ((crtc_vtotal
- 1) << 16));
4964 I915_WRITE(VBLANK(cpu_transcoder
),
4965 (adjusted_mode
->crtc_vblank_start
- 1) |
4966 ((crtc_vblank_end
- 1) << 16));
4967 I915_WRITE(VSYNC(cpu_transcoder
),
4968 (adjusted_mode
->crtc_vsync_start
- 1) |
4969 ((adjusted_mode
->crtc_vsync_end
- 1) << 16));
4971 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
4972 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
4973 * documented on the DDI_FUNC_CTL register description, EDP Input Select
4975 if (IS_HASWELL(dev
) && cpu_transcoder
== TRANSCODER_EDP
&&
4976 (pipe
== PIPE_B
|| pipe
== PIPE_C
))
4977 I915_WRITE(VTOTAL(pipe
), I915_READ(VTOTAL(cpu_transcoder
)));
4979 /* pipesrc controls the size that is scaled from, which should
4980 * always be the user's requested size.
4982 I915_WRITE(PIPESRC(pipe
),
4983 ((intel_crtc
->config
.pipe_src_w
- 1) << 16) |
4984 (intel_crtc
->config
.pipe_src_h
- 1));
4987 static void intel_get_pipe_timings(struct intel_crtc
*crtc
,
4988 struct intel_crtc_config
*pipe_config
)
4990 struct drm_device
*dev
= crtc
->base
.dev
;
4991 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4992 enum transcoder cpu_transcoder
= pipe_config
->cpu_transcoder
;
4995 tmp
= I915_READ(HTOTAL(cpu_transcoder
));
4996 pipe_config
->adjusted_mode
.crtc_hdisplay
= (tmp
& 0xffff) + 1;
4997 pipe_config
->adjusted_mode
.crtc_htotal
= ((tmp
>> 16) & 0xffff) + 1;
4998 tmp
= I915_READ(HBLANK(cpu_transcoder
));
4999 pipe_config
->adjusted_mode
.crtc_hblank_start
= (tmp
& 0xffff) + 1;
5000 pipe_config
->adjusted_mode
.crtc_hblank_end
= ((tmp
>> 16) & 0xffff) + 1;
5001 tmp
= I915_READ(HSYNC(cpu_transcoder
));
5002 pipe_config
->adjusted_mode
.crtc_hsync_start
= (tmp
& 0xffff) + 1;
5003 pipe_config
->adjusted_mode
.crtc_hsync_end
= ((tmp
>> 16) & 0xffff) + 1;
5005 tmp
= I915_READ(VTOTAL(cpu_transcoder
));
5006 pipe_config
->adjusted_mode
.crtc_vdisplay
= (tmp
& 0xffff) + 1;
5007 pipe_config
->adjusted_mode
.crtc_vtotal
= ((tmp
>> 16) & 0xffff) + 1;
5008 tmp
= I915_READ(VBLANK(cpu_transcoder
));
5009 pipe_config
->adjusted_mode
.crtc_vblank_start
= (tmp
& 0xffff) + 1;
5010 pipe_config
->adjusted_mode
.crtc_vblank_end
= ((tmp
>> 16) & 0xffff) + 1;
5011 tmp
= I915_READ(VSYNC(cpu_transcoder
));
5012 pipe_config
->adjusted_mode
.crtc_vsync_start
= (tmp
& 0xffff) + 1;
5013 pipe_config
->adjusted_mode
.crtc_vsync_end
= ((tmp
>> 16) & 0xffff) + 1;
5015 if (I915_READ(PIPECONF(cpu_transcoder
)) & PIPECONF_INTERLACE_MASK
) {
5016 pipe_config
->adjusted_mode
.flags
|= DRM_MODE_FLAG_INTERLACE
;
5017 pipe_config
->adjusted_mode
.crtc_vtotal
+= 1;
5018 pipe_config
->adjusted_mode
.crtc_vblank_end
+= 1;
5021 tmp
= I915_READ(PIPESRC(crtc
->pipe
));
5022 pipe_config
->pipe_src_h
= (tmp
& 0xffff) + 1;
5023 pipe_config
->pipe_src_w
= ((tmp
>> 16) & 0xffff) + 1;
5025 pipe_config
->requested_mode
.vdisplay
= pipe_config
->pipe_src_h
;
5026 pipe_config
->requested_mode
.hdisplay
= pipe_config
->pipe_src_w
;
5029 static void intel_crtc_mode_from_pipe_config(struct intel_crtc
*intel_crtc
,
5030 struct intel_crtc_config
*pipe_config
)
5032 struct drm_crtc
*crtc
= &intel_crtc
->base
;
5034 crtc
->mode
.hdisplay
= pipe_config
->adjusted_mode
.crtc_hdisplay
;
5035 crtc
->mode
.htotal
= pipe_config
->adjusted_mode
.crtc_htotal
;
5036 crtc
->mode
.hsync_start
= pipe_config
->adjusted_mode
.crtc_hsync_start
;
5037 crtc
->mode
.hsync_end
= pipe_config
->adjusted_mode
.crtc_hsync_end
;
5039 crtc
->mode
.vdisplay
= pipe_config
->adjusted_mode
.crtc_vdisplay
;
5040 crtc
->mode
.vtotal
= pipe_config
->adjusted_mode
.crtc_vtotal
;
5041 crtc
->mode
.vsync_start
= pipe_config
->adjusted_mode
.crtc_vsync_start
;
5042 crtc
->mode
.vsync_end
= pipe_config
->adjusted_mode
.crtc_vsync_end
;
5044 crtc
->mode
.flags
= pipe_config
->adjusted_mode
.flags
;
5046 crtc
->mode
.clock
= pipe_config
->adjusted_mode
.crtc_clock
;
5047 crtc
->mode
.flags
|= pipe_config
->adjusted_mode
.flags
;
5050 static void i9xx_set_pipeconf(struct intel_crtc
*intel_crtc
)
5052 struct drm_device
*dev
= intel_crtc
->base
.dev
;
5053 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5058 if (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
&&
5059 I915_READ(PIPECONF(intel_crtc
->pipe
)) & PIPECONF_ENABLE
)
5060 pipeconf
|= PIPECONF_ENABLE
;
5062 if (intel_crtc
->config
.double_wide
)
5063 pipeconf
|= PIPECONF_DOUBLE_WIDE
;
5065 /* only g4x and later have fancy bpc/dither controls */
5066 if (IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) {
5067 /* Bspec claims that we can't use dithering for 30bpp pipes. */
5068 if (intel_crtc
->config
.dither
&& intel_crtc
->config
.pipe_bpp
!= 30)
5069 pipeconf
|= PIPECONF_DITHER_EN
|
5070 PIPECONF_DITHER_TYPE_SP
;
5072 switch (intel_crtc
->config
.pipe_bpp
) {
5074 pipeconf
|= PIPECONF_6BPC
;
5077 pipeconf
|= PIPECONF_8BPC
;
5080 pipeconf
|= PIPECONF_10BPC
;
5083 /* Case prevented by intel_choose_pipe_bpp_dither. */
5088 if (HAS_PIPE_CXSR(dev
)) {
5089 if (intel_crtc
->lowfreq_avail
) {
5090 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
5091 pipeconf
|= PIPECONF_CXSR_DOWNCLOCK
;
5093 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
5097 if (!IS_GEN2(dev
) &&
5098 intel_crtc
->config
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
5099 pipeconf
|= PIPECONF_INTERLACE_W_FIELD_INDICATION
;
5101 pipeconf
|= PIPECONF_PROGRESSIVE
;
5103 if (IS_VALLEYVIEW(dev
) && intel_crtc
->config
.limited_color_range
)
5104 pipeconf
|= PIPECONF_COLOR_RANGE_SELECT
;
5106 I915_WRITE(PIPECONF(intel_crtc
->pipe
), pipeconf
);
5107 POSTING_READ(PIPECONF(intel_crtc
->pipe
));
5110 static int i9xx_crtc_mode_set(struct drm_crtc
*crtc
,
5112 struct drm_framebuffer
*fb
)
5114 struct drm_device
*dev
= crtc
->dev
;
5115 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5116 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5117 int pipe
= intel_crtc
->pipe
;
5118 int plane
= intel_crtc
->plane
;
5119 int refclk
, num_connectors
= 0;
5120 intel_clock_t clock
, reduced_clock
;
5122 bool ok
, has_reduced_clock
= false;
5123 bool is_lvds
= false, is_dsi
= false;
5124 struct intel_encoder
*encoder
;
5125 const intel_limit_t
*limit
;
5128 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
5129 switch (encoder
->type
) {
5130 case INTEL_OUTPUT_LVDS
:
5133 case INTEL_OUTPUT_DSI
:
5144 if (!intel_crtc
->config
.clock_set
) {
5145 refclk
= i9xx_get_refclk(crtc
, num_connectors
);
5148 * Returns a set of divisors for the desired target clock with
5149 * the given refclk, or FALSE. The returned values represent
5150 * the clock equation: reflck * (5 * (m1 + 2) + (m2 + 2)) / (n +
5153 limit
= intel_limit(crtc
, refclk
);
5154 ok
= dev_priv
->display
.find_dpll(limit
, crtc
,
5155 intel_crtc
->config
.port_clock
,
5156 refclk
, NULL
, &clock
);
5158 DRM_ERROR("Couldn't find PLL settings for mode!\n");
5162 if (is_lvds
&& dev_priv
->lvds_downclock_avail
) {
5164 * Ensure we match the reduced clock's P to the target
5165 * clock. If the clocks don't match, we can't switch
5166 * the display clock by using the FP0/FP1. In such case
5167 * we will disable the LVDS downclock feature.
5170 dev_priv
->display
.find_dpll(limit
, crtc
,
5171 dev_priv
->lvds_downclock
,
5175 /* Compat-code for transition, will disappear. */
5176 intel_crtc
->config
.dpll
.n
= clock
.n
;
5177 intel_crtc
->config
.dpll
.m1
= clock
.m1
;
5178 intel_crtc
->config
.dpll
.m2
= clock
.m2
;
5179 intel_crtc
->config
.dpll
.p1
= clock
.p1
;
5180 intel_crtc
->config
.dpll
.p2
= clock
.p2
;
5184 i8xx_update_pll(intel_crtc
,
5185 has_reduced_clock
? &reduced_clock
: NULL
,
5187 } else if (IS_VALLEYVIEW(dev
)) {
5188 vlv_update_pll(intel_crtc
);
5190 i9xx_update_pll(intel_crtc
,
5191 has_reduced_clock
? &reduced_clock
: NULL
,
5196 /* Set up the display plane register */
5197 dspcntr
= DISPPLANE_GAMMA_ENABLE
;
5199 if (!IS_VALLEYVIEW(dev
)) {
5201 dspcntr
&= ~DISPPLANE_SEL_PIPE_MASK
;
5203 dspcntr
|= DISPPLANE_SEL_PIPE_B
;
5206 intel_set_pipe_timings(intel_crtc
);
5208 /* pipesrc and dspsize control the size that is scaled from,
5209 * which should always be the user's requested size.
5211 I915_WRITE(DSPSIZE(plane
),
5212 ((intel_crtc
->config
.pipe_src_h
- 1) << 16) |
5213 (intel_crtc
->config
.pipe_src_w
- 1));
5214 I915_WRITE(DSPPOS(plane
), 0);
5216 i9xx_set_pipeconf(intel_crtc
);
5218 I915_WRITE(DSPCNTR(plane
), dspcntr
);
5219 POSTING_READ(DSPCNTR(plane
));
5221 ret
= intel_pipe_set_base(crtc
, x
, y
, fb
);
5226 static void i9xx_get_pfit_config(struct intel_crtc
*crtc
,
5227 struct intel_crtc_config
*pipe_config
)
5229 struct drm_device
*dev
= crtc
->base
.dev
;
5230 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5233 tmp
= I915_READ(PFIT_CONTROL
);
5234 if (!(tmp
& PFIT_ENABLE
))
5237 /* Check whether the pfit is attached to our pipe. */
5238 if (INTEL_INFO(dev
)->gen
< 4) {
5239 if (crtc
->pipe
!= PIPE_B
)
5242 if ((tmp
& PFIT_PIPE_MASK
) != (crtc
->pipe
<< PFIT_PIPE_SHIFT
))
5246 pipe_config
->gmch_pfit
.control
= tmp
;
5247 pipe_config
->gmch_pfit
.pgm_ratios
= I915_READ(PFIT_PGM_RATIOS
);
5248 if (INTEL_INFO(dev
)->gen
< 5)
5249 pipe_config
->gmch_pfit
.lvds_border_bits
=
5250 I915_READ(LVDS
) & LVDS_BORDER_ENABLE
;
5253 static void vlv_crtc_clock_get(struct intel_crtc
*crtc
,
5254 struct intel_crtc_config
*pipe_config
)
5256 struct drm_device
*dev
= crtc
->base
.dev
;
5257 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5258 int pipe
= pipe_config
->cpu_transcoder
;
5259 intel_clock_t clock
;
5261 int refclk
= 100000;
5263 mutex_lock(&dev_priv
->dpio_lock
);
5264 mdiv
= vlv_dpio_read(dev_priv
, pipe
, DPIO_DIV(pipe
));
5265 mutex_unlock(&dev_priv
->dpio_lock
);
5267 clock
.m1
= (mdiv
>> DPIO_M1DIV_SHIFT
) & 7;
5268 clock
.m2
= mdiv
& DPIO_M2DIV_MASK
;
5269 clock
.n
= (mdiv
>> DPIO_N_SHIFT
) & 0xf;
5270 clock
.p1
= (mdiv
>> DPIO_P1_SHIFT
) & 7;
5271 clock
.p2
= (mdiv
>> DPIO_P2_SHIFT
) & 0x1f;
5273 vlv_clock(refclk
, &clock
);
5275 /* clock.dot is the fast clock */
5276 pipe_config
->port_clock
= clock
.dot
/ 5;
5279 static bool i9xx_get_pipe_config(struct intel_crtc
*crtc
,
5280 struct intel_crtc_config
*pipe_config
)
5282 struct drm_device
*dev
= crtc
->base
.dev
;
5283 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5286 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
5287 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
5289 tmp
= I915_READ(PIPECONF(crtc
->pipe
));
5290 if (!(tmp
& PIPECONF_ENABLE
))
5293 if (IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) {
5294 switch (tmp
& PIPECONF_BPC_MASK
) {
5296 pipe_config
->pipe_bpp
= 18;
5299 pipe_config
->pipe_bpp
= 24;
5301 case PIPECONF_10BPC
:
5302 pipe_config
->pipe_bpp
= 30;
5309 if (INTEL_INFO(dev
)->gen
< 4)
5310 pipe_config
->double_wide
= tmp
& PIPECONF_DOUBLE_WIDE
;
5312 intel_get_pipe_timings(crtc
, pipe_config
);
5314 i9xx_get_pfit_config(crtc
, pipe_config
);
5316 if (INTEL_INFO(dev
)->gen
>= 4) {
5317 tmp
= I915_READ(DPLL_MD(crtc
->pipe
));
5318 pipe_config
->pixel_multiplier
=
5319 ((tmp
& DPLL_MD_UDI_MULTIPLIER_MASK
)
5320 >> DPLL_MD_UDI_MULTIPLIER_SHIFT
) + 1;
5321 pipe_config
->dpll_hw_state
.dpll_md
= tmp
;
5322 } else if (IS_I945G(dev
) || IS_I945GM(dev
) || IS_G33(dev
)) {
5323 tmp
= I915_READ(DPLL(crtc
->pipe
));
5324 pipe_config
->pixel_multiplier
=
5325 ((tmp
& SDVO_MULTIPLIER_MASK
)
5326 >> SDVO_MULTIPLIER_SHIFT_HIRES
) + 1;
5328 /* Note that on i915G/GM the pixel multiplier is in the sdvo
5329 * port and will be fixed up in the encoder->get_config
5331 pipe_config
->pixel_multiplier
= 1;
5333 pipe_config
->dpll_hw_state
.dpll
= I915_READ(DPLL(crtc
->pipe
));
5334 if (!IS_VALLEYVIEW(dev
)) {
5335 pipe_config
->dpll_hw_state
.fp0
= I915_READ(FP0(crtc
->pipe
));
5336 pipe_config
->dpll_hw_state
.fp1
= I915_READ(FP1(crtc
->pipe
));
5338 /* Mask out read-only status bits. */
5339 pipe_config
->dpll_hw_state
.dpll
&= ~(DPLL_LOCK_VLV
|
5340 DPLL_PORTC_READY_MASK
|
5341 DPLL_PORTB_READY_MASK
);
5344 if (IS_VALLEYVIEW(dev
))
5345 vlv_crtc_clock_get(crtc
, pipe_config
);
5347 i9xx_crtc_clock_get(crtc
, pipe_config
);
5352 static void ironlake_init_pch_refclk(struct drm_device
*dev
)
5354 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5355 struct drm_mode_config
*mode_config
= &dev
->mode_config
;
5356 struct intel_encoder
*encoder
;
5358 bool has_lvds
= false;
5359 bool has_cpu_edp
= false;
5360 bool has_panel
= false;
5361 bool has_ck505
= false;
5362 bool can_ssc
= false;
5364 /* We need to take the global config into account */
5365 list_for_each_entry(encoder
, &mode_config
->encoder_list
,
5367 switch (encoder
->type
) {
5368 case INTEL_OUTPUT_LVDS
:
5372 case INTEL_OUTPUT_EDP
:
5374 if (enc_to_dig_port(&encoder
->base
)->port
== PORT_A
)
5380 if (HAS_PCH_IBX(dev
)) {
5381 has_ck505
= dev_priv
->vbt
.display_clock_mode
;
5382 can_ssc
= has_ck505
;
5388 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n",
5389 has_panel
, has_lvds
, has_ck505
);
5391 /* Ironlake: try to setup display ref clock before DPLL
5392 * enabling. This is only under driver's control after
5393 * PCH B stepping, previous chipset stepping should be
5394 * ignoring this setting.
5396 val
= I915_READ(PCH_DREF_CONTROL
);
5398 /* As we must carefully and slowly disable/enable each source in turn,
5399 * compute the final state we want first and check if we need to
5400 * make any changes at all.
5403 final
&= ~DREF_NONSPREAD_SOURCE_MASK
;
5405 final
|= DREF_NONSPREAD_CK505_ENABLE
;
5407 final
|= DREF_NONSPREAD_SOURCE_ENABLE
;
5409 final
&= ~DREF_SSC_SOURCE_MASK
;
5410 final
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
5411 final
&= ~DREF_SSC1_ENABLE
;
5414 final
|= DREF_SSC_SOURCE_ENABLE
;
5416 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
5417 final
|= DREF_SSC1_ENABLE
;
5420 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
5421 final
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
5423 final
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
5425 final
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
5427 final
|= DREF_SSC_SOURCE_DISABLE
;
5428 final
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
5434 /* Always enable nonspread source */
5435 val
&= ~DREF_NONSPREAD_SOURCE_MASK
;
5438 val
|= DREF_NONSPREAD_CK505_ENABLE
;
5440 val
|= DREF_NONSPREAD_SOURCE_ENABLE
;
5443 val
&= ~DREF_SSC_SOURCE_MASK
;
5444 val
|= DREF_SSC_SOURCE_ENABLE
;
5446 /* SSC must be turned on before enabling the CPU output */
5447 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
5448 DRM_DEBUG_KMS("Using SSC on panel\n");
5449 val
|= DREF_SSC1_ENABLE
;
5451 val
&= ~DREF_SSC1_ENABLE
;
5453 /* Get SSC going before enabling the outputs */
5454 I915_WRITE(PCH_DREF_CONTROL
, val
);
5455 POSTING_READ(PCH_DREF_CONTROL
);
5458 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
5460 /* Enable CPU source on CPU attached eDP */
5462 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
5463 DRM_DEBUG_KMS("Using SSC on eDP\n");
5464 val
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
5467 val
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
5469 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
5471 I915_WRITE(PCH_DREF_CONTROL
, val
);
5472 POSTING_READ(PCH_DREF_CONTROL
);
5475 DRM_DEBUG_KMS("Disabling SSC entirely\n");
5477 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
5479 /* Turn off CPU output */
5480 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
5482 I915_WRITE(PCH_DREF_CONTROL
, val
);
5483 POSTING_READ(PCH_DREF_CONTROL
);
5486 /* Turn off the SSC source */
5487 val
&= ~DREF_SSC_SOURCE_MASK
;
5488 val
|= DREF_SSC_SOURCE_DISABLE
;
5491 val
&= ~DREF_SSC1_ENABLE
;
5493 I915_WRITE(PCH_DREF_CONTROL
, val
);
5494 POSTING_READ(PCH_DREF_CONTROL
);
5498 BUG_ON(val
!= final
);
5501 static void lpt_reset_fdi_mphy(struct drm_i915_private
*dev_priv
)
5505 tmp
= I915_READ(SOUTH_CHICKEN2
);
5506 tmp
|= FDI_MPHY_IOSFSB_RESET_CTL
;
5507 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
5509 if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2
) &
5510 FDI_MPHY_IOSFSB_RESET_STATUS
, 100))
5511 DRM_ERROR("FDI mPHY reset assert timeout\n");
5513 tmp
= I915_READ(SOUTH_CHICKEN2
);
5514 tmp
&= ~FDI_MPHY_IOSFSB_RESET_CTL
;
5515 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
5517 if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2
) &
5518 FDI_MPHY_IOSFSB_RESET_STATUS
) == 0, 100))
5519 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
5522 /* WaMPhyProgramming:hsw */
5523 static void lpt_program_fdi_mphy(struct drm_i915_private
*dev_priv
)
5527 tmp
= intel_sbi_read(dev_priv
, 0x8008, SBI_MPHY
);
5528 tmp
&= ~(0xFF << 24);
5529 tmp
|= (0x12 << 24);
5530 intel_sbi_write(dev_priv
, 0x8008, tmp
, SBI_MPHY
);
5532 tmp
= intel_sbi_read(dev_priv
, 0x2008, SBI_MPHY
);
5534 intel_sbi_write(dev_priv
, 0x2008, tmp
, SBI_MPHY
);
5536 tmp
= intel_sbi_read(dev_priv
, 0x2108, SBI_MPHY
);
5538 intel_sbi_write(dev_priv
, 0x2108, tmp
, SBI_MPHY
);
5540 tmp
= intel_sbi_read(dev_priv
, 0x206C, SBI_MPHY
);
5541 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
5542 intel_sbi_write(dev_priv
, 0x206C, tmp
, SBI_MPHY
);
5544 tmp
= intel_sbi_read(dev_priv
, 0x216C, SBI_MPHY
);
5545 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
5546 intel_sbi_write(dev_priv
, 0x216C, tmp
, SBI_MPHY
);
5548 tmp
= intel_sbi_read(dev_priv
, 0x2080, SBI_MPHY
);
5551 intel_sbi_write(dev_priv
, 0x2080, tmp
, SBI_MPHY
);
5553 tmp
= intel_sbi_read(dev_priv
, 0x2180, SBI_MPHY
);
5556 intel_sbi_write(dev_priv
, 0x2180, tmp
, SBI_MPHY
);
5558 tmp
= intel_sbi_read(dev_priv
, 0x208C, SBI_MPHY
);
5561 intel_sbi_write(dev_priv
, 0x208C, tmp
, SBI_MPHY
);
5563 tmp
= intel_sbi_read(dev_priv
, 0x218C, SBI_MPHY
);
5566 intel_sbi_write(dev_priv
, 0x218C, tmp
, SBI_MPHY
);
5568 tmp
= intel_sbi_read(dev_priv
, 0x2098, SBI_MPHY
);
5569 tmp
&= ~(0xFF << 16);
5570 tmp
|= (0x1C << 16);
5571 intel_sbi_write(dev_priv
, 0x2098, tmp
, SBI_MPHY
);
5573 tmp
= intel_sbi_read(dev_priv
, 0x2198, SBI_MPHY
);
5574 tmp
&= ~(0xFF << 16);
5575 tmp
|= (0x1C << 16);
5576 intel_sbi_write(dev_priv
, 0x2198, tmp
, SBI_MPHY
);
5578 tmp
= intel_sbi_read(dev_priv
, 0x20C4, SBI_MPHY
);
5580 intel_sbi_write(dev_priv
, 0x20C4, tmp
, SBI_MPHY
);
5582 tmp
= intel_sbi_read(dev_priv
, 0x21C4, SBI_MPHY
);
5584 intel_sbi_write(dev_priv
, 0x21C4, tmp
, SBI_MPHY
);
5586 tmp
= intel_sbi_read(dev_priv
, 0x20EC, SBI_MPHY
);
5587 tmp
&= ~(0xF << 28);
5589 intel_sbi_write(dev_priv
, 0x20EC, tmp
, SBI_MPHY
);
5591 tmp
= intel_sbi_read(dev_priv
, 0x21EC, SBI_MPHY
);
5592 tmp
&= ~(0xF << 28);
5594 intel_sbi_write(dev_priv
, 0x21EC, tmp
, SBI_MPHY
);
5597 /* Implements 3 different sequences from BSpec chapter "Display iCLK
5598 * Programming" based on the parameters passed:
5599 * - Sequence to enable CLKOUT_DP
5600 * - Sequence to enable CLKOUT_DP without spread
5601 * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O
5603 static void lpt_enable_clkout_dp(struct drm_device
*dev
, bool with_spread
,
5606 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5609 if (WARN(with_fdi
&& !with_spread
, "FDI requires downspread\n"))
5611 if (WARN(dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
&&
5612 with_fdi
, "LP PCH doesn't have FDI\n"))
5615 mutex_lock(&dev_priv
->dpio_lock
);
5617 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
5618 tmp
&= ~SBI_SSCCTL_DISABLE
;
5619 tmp
|= SBI_SSCCTL_PATHALT
;
5620 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
5625 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
5626 tmp
&= ~SBI_SSCCTL_PATHALT
;
5627 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
5630 lpt_reset_fdi_mphy(dev_priv
);
5631 lpt_program_fdi_mphy(dev_priv
);
5635 reg
= (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) ?
5636 SBI_GEN0
: SBI_DBUFF0
;
5637 tmp
= intel_sbi_read(dev_priv
, reg
, SBI_ICLK
);
5638 tmp
|= SBI_GEN0_CFG_BUFFENABLE_DISABLE
;
5639 intel_sbi_write(dev_priv
, reg
, tmp
, SBI_ICLK
);
5641 mutex_unlock(&dev_priv
->dpio_lock
);
5644 /* Sequence to disable CLKOUT_DP */
5645 static void lpt_disable_clkout_dp(struct drm_device
*dev
)
5647 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5650 mutex_lock(&dev_priv
->dpio_lock
);
5652 reg
= (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) ?
5653 SBI_GEN0
: SBI_DBUFF0
;
5654 tmp
= intel_sbi_read(dev_priv
, reg
, SBI_ICLK
);
5655 tmp
&= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE
;
5656 intel_sbi_write(dev_priv
, reg
, tmp
, SBI_ICLK
);
5658 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
5659 if (!(tmp
& SBI_SSCCTL_DISABLE
)) {
5660 if (!(tmp
& SBI_SSCCTL_PATHALT
)) {
5661 tmp
|= SBI_SSCCTL_PATHALT
;
5662 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
5665 tmp
|= SBI_SSCCTL_DISABLE
;
5666 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
5669 mutex_unlock(&dev_priv
->dpio_lock
);
5672 static void lpt_init_pch_refclk(struct drm_device
*dev
)
5674 struct drm_mode_config
*mode_config
= &dev
->mode_config
;
5675 struct intel_encoder
*encoder
;
5676 bool has_vga
= false;
5678 list_for_each_entry(encoder
, &mode_config
->encoder_list
, base
.head
) {
5679 switch (encoder
->type
) {
5680 case INTEL_OUTPUT_ANALOG
:
5687 lpt_enable_clkout_dp(dev
, true, true);
5689 lpt_disable_clkout_dp(dev
);
5693 * Initialize reference clocks when the driver loads
5695 void intel_init_pch_refclk(struct drm_device
*dev
)
5697 if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
5698 ironlake_init_pch_refclk(dev
);
5699 else if (HAS_PCH_LPT(dev
))
5700 lpt_init_pch_refclk(dev
);
5703 static int ironlake_get_refclk(struct drm_crtc
*crtc
)
5705 struct drm_device
*dev
= crtc
->dev
;
5706 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5707 struct intel_encoder
*encoder
;
5708 int num_connectors
= 0;
5709 bool is_lvds
= false;
5711 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
5712 switch (encoder
->type
) {
5713 case INTEL_OUTPUT_LVDS
:
5720 if (is_lvds
&& intel_panel_use_ssc(dev_priv
) && num_connectors
< 2) {
5721 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
5722 dev_priv
->vbt
.lvds_ssc_freq
);
5723 return dev_priv
->vbt
.lvds_ssc_freq
* 1000;
5729 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
)
5731 struct drm_i915_private
*dev_priv
= crtc
->dev
->dev_private
;
5732 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5733 int pipe
= intel_crtc
->pipe
;
5738 switch (intel_crtc
->config
.pipe_bpp
) {
5740 val
|= PIPECONF_6BPC
;
5743 val
|= PIPECONF_8BPC
;
5746 val
|= PIPECONF_10BPC
;
5749 val
|= PIPECONF_12BPC
;
5752 /* Case prevented by intel_choose_pipe_bpp_dither. */
5756 if (intel_crtc
->config
.dither
)
5757 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
5759 if (intel_crtc
->config
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
5760 val
|= PIPECONF_INTERLACED_ILK
;
5762 val
|= PIPECONF_PROGRESSIVE
;
5764 if (intel_crtc
->config
.limited_color_range
)
5765 val
|= PIPECONF_COLOR_RANGE_SELECT
;
5767 I915_WRITE(PIPECONF(pipe
), val
);
5768 POSTING_READ(PIPECONF(pipe
));
5772 * Set up the pipe CSC unit.
5774 * Currently only full range RGB to limited range RGB conversion
5775 * is supported, but eventually this should handle various
5776 * RGB<->YCbCr scenarios as well.
5778 static void intel_set_pipe_csc(struct drm_crtc
*crtc
)
5780 struct drm_device
*dev
= crtc
->dev
;
5781 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5782 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5783 int pipe
= intel_crtc
->pipe
;
5784 uint16_t coeff
= 0x7800; /* 1.0 */
5787 * TODO: Check what kind of values actually come out of the pipe
5788 * with these coeff/postoff values and adjust to get the best
5789 * accuracy. Perhaps we even need to take the bpc value into
5793 if (intel_crtc
->config
.limited_color_range
)
5794 coeff
= ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */
5797 * GY/GU and RY/RU should be the other way around according
5798 * to BSpec, but reality doesn't agree. Just set them up in
5799 * a way that results in the correct picture.
5801 I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe
), coeff
<< 16);
5802 I915_WRITE(PIPE_CSC_COEFF_BY(pipe
), 0);
5804 I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe
), coeff
);
5805 I915_WRITE(PIPE_CSC_COEFF_BU(pipe
), 0);
5807 I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe
), 0);
5808 I915_WRITE(PIPE_CSC_COEFF_BV(pipe
), coeff
<< 16);
5810 I915_WRITE(PIPE_CSC_PREOFF_HI(pipe
), 0);
5811 I915_WRITE(PIPE_CSC_PREOFF_ME(pipe
), 0);
5812 I915_WRITE(PIPE_CSC_PREOFF_LO(pipe
), 0);
5814 if (INTEL_INFO(dev
)->gen
> 6) {
5815 uint16_t postoff
= 0;
5817 if (intel_crtc
->config
.limited_color_range
)
5818 postoff
= (16 * (1 << 13) / 255) & 0x1fff;
5820 I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe
), postoff
);
5821 I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe
), postoff
);
5822 I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe
), postoff
);
5824 I915_WRITE(PIPE_CSC_MODE(pipe
), 0);
5826 uint32_t mode
= CSC_MODE_YUV_TO_RGB
;
5828 if (intel_crtc
->config
.limited_color_range
)
5829 mode
|= CSC_BLACK_SCREEN_OFFSET
;
5831 I915_WRITE(PIPE_CSC_MODE(pipe
), mode
);
5835 static void haswell_set_pipeconf(struct drm_crtc
*crtc
)
5837 struct drm_device
*dev
= crtc
->dev
;
5838 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5839 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5840 enum pipe pipe
= intel_crtc
->pipe
;
5841 enum transcoder cpu_transcoder
= intel_crtc
->config
.cpu_transcoder
;
5846 if (IS_HASWELL(dev
) && intel_crtc
->config
.dither
)
5847 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
5849 if (intel_crtc
->config
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
5850 val
|= PIPECONF_INTERLACED_ILK
;
5852 val
|= PIPECONF_PROGRESSIVE
;
5854 I915_WRITE(PIPECONF(cpu_transcoder
), val
);
5855 POSTING_READ(PIPECONF(cpu_transcoder
));
5857 I915_WRITE(GAMMA_MODE(intel_crtc
->pipe
), GAMMA_MODE_MODE_8BIT
);
5858 POSTING_READ(GAMMA_MODE(intel_crtc
->pipe
));
5860 if (IS_BROADWELL(dev
)) {
5863 switch (intel_crtc
->config
.pipe_bpp
) {
5865 val
|= PIPEMISC_DITHER_6_BPC
;
5868 val
|= PIPEMISC_DITHER_8_BPC
;
5871 val
|= PIPEMISC_DITHER_10_BPC
;
5874 val
|= PIPEMISC_DITHER_12_BPC
;
5877 /* Case prevented by pipe_config_set_bpp. */
5881 if (intel_crtc
->config
.dither
)
5882 val
|= PIPEMISC_DITHER_ENABLE
| PIPEMISC_DITHER_TYPE_SP
;
5884 I915_WRITE(PIPEMISC(pipe
), val
);
5888 static bool ironlake_compute_clocks(struct drm_crtc
*crtc
,
5889 intel_clock_t
*clock
,
5890 bool *has_reduced_clock
,
5891 intel_clock_t
*reduced_clock
)
5893 struct drm_device
*dev
= crtc
->dev
;
5894 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5895 struct intel_encoder
*intel_encoder
;
5897 const intel_limit_t
*limit
;
5898 bool ret
, is_lvds
= false;
5900 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
) {
5901 switch (intel_encoder
->type
) {
5902 case INTEL_OUTPUT_LVDS
:
5908 refclk
= ironlake_get_refclk(crtc
);
5911 * Returns a set of divisors for the desired target clock with the given
5912 * refclk, or FALSE. The returned values represent the clock equation:
5913 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
5915 limit
= intel_limit(crtc
, refclk
);
5916 ret
= dev_priv
->display
.find_dpll(limit
, crtc
,
5917 to_intel_crtc(crtc
)->config
.port_clock
,
5918 refclk
, NULL
, clock
);
5922 if (is_lvds
&& dev_priv
->lvds_downclock_avail
) {
5924 * Ensure we match the reduced clock's P to the target clock.
5925 * If the clocks don't match, we can't switch the display clock
5926 * by using the FP0/FP1. In such case we will disable the LVDS
5927 * downclock feature.
5929 *has_reduced_clock
=
5930 dev_priv
->display
.find_dpll(limit
, crtc
,
5931 dev_priv
->lvds_downclock
,
5939 int ironlake_get_lanes_required(int target_clock
, int link_bw
, int bpp
)
5942 * Account for spread spectrum to avoid
5943 * oversubscribing the link. Max center spread
5944 * is 2.5%; use 5% for safety's sake.
5946 u32 bps
= target_clock
* bpp
* 21 / 20;
5947 return bps
/ (link_bw
* 8) + 1;
5950 static bool ironlake_needs_fb_cb_tune(struct dpll
*dpll
, int factor
)
5952 return i9xx_dpll_compute_m(dpll
) < factor
* dpll
->n
;
5955 static uint32_t ironlake_compute_dpll(struct intel_crtc
*intel_crtc
,
5957 intel_clock_t
*reduced_clock
, u32
*fp2
)
5959 struct drm_crtc
*crtc
= &intel_crtc
->base
;
5960 struct drm_device
*dev
= crtc
->dev
;
5961 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5962 struct intel_encoder
*intel_encoder
;
5964 int factor
, num_connectors
= 0;
5965 bool is_lvds
= false, is_sdvo
= false;
5967 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
) {
5968 switch (intel_encoder
->type
) {
5969 case INTEL_OUTPUT_LVDS
:
5972 case INTEL_OUTPUT_SDVO
:
5973 case INTEL_OUTPUT_HDMI
:
5981 /* Enable autotuning of the PLL clock (if permissible) */
5984 if ((intel_panel_use_ssc(dev_priv
) &&
5985 dev_priv
->vbt
.lvds_ssc_freq
== 100) ||
5986 (HAS_PCH_IBX(dev
) && intel_is_dual_link_lvds(dev
)))
5988 } else if (intel_crtc
->config
.sdvo_tv_clock
)
5991 if (ironlake_needs_fb_cb_tune(&intel_crtc
->config
.dpll
, factor
))
5994 if (fp2
&& (reduced_clock
->m
< factor
* reduced_clock
->n
))
6000 dpll
|= DPLLB_MODE_LVDS
;
6002 dpll
|= DPLLB_MODE_DAC_SERIAL
;
6004 dpll
|= (intel_crtc
->config
.pixel_multiplier
- 1)
6005 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
;
6008 dpll
|= DPLL_SDVO_HIGH_SPEED
;
6009 if (intel_crtc
->config
.has_dp_encoder
)
6010 dpll
|= DPLL_SDVO_HIGH_SPEED
;
6012 /* compute bitmask from p1 value */
6013 dpll
|= (1 << (intel_crtc
->config
.dpll
.p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
6015 dpll
|= (1 << (intel_crtc
->config
.dpll
.p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
6017 switch (intel_crtc
->config
.dpll
.p2
) {
6019 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
6022 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
6025 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
6028 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
6032 if (is_lvds
&& intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
6033 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
6035 dpll
|= PLL_REF_INPUT_DREFCLK
;
6037 return dpll
| DPLL_VCO_ENABLE
;
6040 static int ironlake_crtc_mode_set(struct drm_crtc
*crtc
,
6042 struct drm_framebuffer
*fb
)
6044 struct drm_device
*dev
= crtc
->dev
;
6045 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6046 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6047 int pipe
= intel_crtc
->pipe
;
6048 int plane
= intel_crtc
->plane
;
6049 int num_connectors
= 0;
6050 intel_clock_t clock
, reduced_clock
;
6051 u32 dpll
= 0, fp
= 0, fp2
= 0;
6052 bool ok
, has_reduced_clock
= false;
6053 bool is_lvds
= false;
6054 struct intel_encoder
*encoder
;
6055 struct intel_shared_dpll
*pll
;
6058 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
6059 switch (encoder
->type
) {
6060 case INTEL_OUTPUT_LVDS
:
6068 WARN(!(HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
)),
6069 "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev
));
6071 ok
= ironlake_compute_clocks(crtc
, &clock
,
6072 &has_reduced_clock
, &reduced_clock
);
6073 if (!ok
&& !intel_crtc
->config
.clock_set
) {
6074 DRM_ERROR("Couldn't find PLL settings for mode!\n");
6077 /* Compat-code for transition, will disappear. */
6078 if (!intel_crtc
->config
.clock_set
) {
6079 intel_crtc
->config
.dpll
.n
= clock
.n
;
6080 intel_crtc
->config
.dpll
.m1
= clock
.m1
;
6081 intel_crtc
->config
.dpll
.m2
= clock
.m2
;
6082 intel_crtc
->config
.dpll
.p1
= clock
.p1
;
6083 intel_crtc
->config
.dpll
.p2
= clock
.p2
;
6086 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
6087 if (intel_crtc
->config
.has_pch_encoder
) {
6088 fp
= i9xx_dpll_compute_fp(&intel_crtc
->config
.dpll
);
6089 if (has_reduced_clock
)
6090 fp2
= i9xx_dpll_compute_fp(&reduced_clock
);
6092 dpll
= ironlake_compute_dpll(intel_crtc
,
6093 &fp
, &reduced_clock
,
6094 has_reduced_clock
? &fp2
: NULL
);
6096 intel_crtc
->config
.dpll_hw_state
.dpll
= dpll
;
6097 intel_crtc
->config
.dpll_hw_state
.fp0
= fp
;
6098 if (has_reduced_clock
)
6099 intel_crtc
->config
.dpll_hw_state
.fp1
= fp2
;
6101 intel_crtc
->config
.dpll_hw_state
.fp1
= fp
;
6103 pll
= intel_get_shared_dpll(intel_crtc
);
6105 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
6110 intel_put_shared_dpll(intel_crtc
);
6112 if (intel_crtc
->config
.has_dp_encoder
)
6113 intel_dp_set_m_n(intel_crtc
);
6115 if (is_lvds
&& has_reduced_clock
&& i915_powersave
)
6116 intel_crtc
->lowfreq_avail
= true;
6118 intel_crtc
->lowfreq_avail
= false;
6120 intel_set_pipe_timings(intel_crtc
);
6122 if (intel_crtc
->config
.has_pch_encoder
) {
6123 intel_cpu_transcoder_set_m_n(intel_crtc
,
6124 &intel_crtc
->config
.fdi_m_n
);
6127 ironlake_set_pipeconf(crtc
);
6129 /* Set up the display plane register */
6130 I915_WRITE(DSPCNTR(plane
), DISPPLANE_GAMMA_ENABLE
);
6131 POSTING_READ(DSPCNTR(plane
));
6133 ret
= intel_pipe_set_base(crtc
, x
, y
, fb
);
6138 static void intel_pch_transcoder_get_m_n(struct intel_crtc
*crtc
,
6139 struct intel_link_m_n
*m_n
)
6141 struct drm_device
*dev
= crtc
->base
.dev
;
6142 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6143 enum pipe pipe
= crtc
->pipe
;
6145 m_n
->link_m
= I915_READ(PCH_TRANS_LINK_M1(pipe
));
6146 m_n
->link_n
= I915_READ(PCH_TRANS_LINK_N1(pipe
));
6147 m_n
->gmch_m
= I915_READ(PCH_TRANS_DATA_M1(pipe
))
6149 m_n
->gmch_n
= I915_READ(PCH_TRANS_DATA_N1(pipe
));
6150 m_n
->tu
= ((I915_READ(PCH_TRANS_DATA_M1(pipe
))
6151 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
6154 static void intel_cpu_transcoder_get_m_n(struct intel_crtc
*crtc
,
6155 enum transcoder transcoder
,
6156 struct intel_link_m_n
*m_n
)
6158 struct drm_device
*dev
= crtc
->base
.dev
;
6159 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6160 enum pipe pipe
= crtc
->pipe
;
6162 if (INTEL_INFO(dev
)->gen
>= 5) {
6163 m_n
->link_m
= I915_READ(PIPE_LINK_M1(transcoder
));
6164 m_n
->link_n
= I915_READ(PIPE_LINK_N1(transcoder
));
6165 m_n
->gmch_m
= I915_READ(PIPE_DATA_M1(transcoder
))
6167 m_n
->gmch_n
= I915_READ(PIPE_DATA_N1(transcoder
));
6168 m_n
->tu
= ((I915_READ(PIPE_DATA_M1(transcoder
))
6169 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
6171 m_n
->link_m
= I915_READ(PIPE_LINK_M_G4X(pipe
));
6172 m_n
->link_n
= I915_READ(PIPE_LINK_N_G4X(pipe
));
6173 m_n
->gmch_m
= I915_READ(PIPE_DATA_M_G4X(pipe
))
6175 m_n
->gmch_n
= I915_READ(PIPE_DATA_N_G4X(pipe
));
6176 m_n
->tu
= ((I915_READ(PIPE_DATA_M_G4X(pipe
))
6177 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
6181 void intel_dp_get_m_n(struct intel_crtc
*crtc
,
6182 struct intel_crtc_config
*pipe_config
)
6184 if (crtc
->config
.has_pch_encoder
)
6185 intel_pch_transcoder_get_m_n(crtc
, &pipe_config
->dp_m_n
);
6187 intel_cpu_transcoder_get_m_n(crtc
, pipe_config
->cpu_transcoder
,
6188 &pipe_config
->dp_m_n
);
6191 static void ironlake_get_fdi_m_n_config(struct intel_crtc
*crtc
,
6192 struct intel_crtc_config
*pipe_config
)
6194 intel_cpu_transcoder_get_m_n(crtc
, pipe_config
->cpu_transcoder
,
6195 &pipe_config
->fdi_m_n
);
6198 static void ironlake_get_pfit_config(struct intel_crtc
*crtc
,
6199 struct intel_crtc_config
*pipe_config
)
6201 struct drm_device
*dev
= crtc
->base
.dev
;
6202 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6205 tmp
= I915_READ(PF_CTL(crtc
->pipe
));
6207 if (tmp
& PF_ENABLE
) {
6208 pipe_config
->pch_pfit
.enabled
= true;
6209 pipe_config
->pch_pfit
.pos
= I915_READ(PF_WIN_POS(crtc
->pipe
));
6210 pipe_config
->pch_pfit
.size
= I915_READ(PF_WIN_SZ(crtc
->pipe
));
6212 /* We currently do not free assignements of panel fitters on
6213 * ivb/hsw (since we don't use the higher upscaling modes which
6214 * differentiates them) so just WARN about this case for now. */
6216 WARN_ON((tmp
& PF_PIPE_SEL_MASK_IVB
) !=
6217 PF_PIPE_SEL_IVB(crtc
->pipe
));
6222 static bool ironlake_get_pipe_config(struct intel_crtc
*crtc
,
6223 struct intel_crtc_config
*pipe_config
)
6225 struct drm_device
*dev
= crtc
->base
.dev
;
6226 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6229 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
6230 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
6232 tmp
= I915_READ(PIPECONF(crtc
->pipe
));
6233 if (!(tmp
& PIPECONF_ENABLE
))
6236 switch (tmp
& PIPECONF_BPC_MASK
) {
6238 pipe_config
->pipe_bpp
= 18;
6241 pipe_config
->pipe_bpp
= 24;
6243 case PIPECONF_10BPC
:
6244 pipe_config
->pipe_bpp
= 30;
6246 case PIPECONF_12BPC
:
6247 pipe_config
->pipe_bpp
= 36;
6253 if (I915_READ(PCH_TRANSCONF(crtc
->pipe
)) & TRANS_ENABLE
) {
6254 struct intel_shared_dpll
*pll
;
6256 pipe_config
->has_pch_encoder
= true;
6258 tmp
= I915_READ(FDI_RX_CTL(crtc
->pipe
));
6259 pipe_config
->fdi_lanes
= ((FDI_DP_PORT_WIDTH_MASK
& tmp
) >>
6260 FDI_DP_PORT_WIDTH_SHIFT
) + 1;
6262 ironlake_get_fdi_m_n_config(crtc
, pipe_config
);
6264 if (HAS_PCH_IBX(dev_priv
->dev
)) {
6265 pipe_config
->shared_dpll
=
6266 (enum intel_dpll_id
) crtc
->pipe
;
6268 tmp
= I915_READ(PCH_DPLL_SEL
);
6269 if (tmp
& TRANS_DPLLB_SEL(crtc
->pipe
))
6270 pipe_config
->shared_dpll
= DPLL_ID_PCH_PLL_B
;
6272 pipe_config
->shared_dpll
= DPLL_ID_PCH_PLL_A
;
6275 pll
= &dev_priv
->shared_dplls
[pipe_config
->shared_dpll
];
6277 WARN_ON(!pll
->get_hw_state(dev_priv
, pll
,
6278 &pipe_config
->dpll_hw_state
));
6280 tmp
= pipe_config
->dpll_hw_state
.dpll
;
6281 pipe_config
->pixel_multiplier
=
6282 ((tmp
& PLL_REF_SDVO_HDMI_MULTIPLIER_MASK
)
6283 >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
) + 1;
6285 ironlake_pch_clock_get(crtc
, pipe_config
);
6287 pipe_config
->pixel_multiplier
= 1;
6290 intel_get_pipe_timings(crtc
, pipe_config
);
6292 ironlake_get_pfit_config(crtc
, pipe_config
);
6297 static void assert_can_disable_lcpll(struct drm_i915_private
*dev_priv
)
6299 struct drm_device
*dev
= dev_priv
->dev
;
6300 struct intel_ddi_plls
*plls
= &dev_priv
->ddi_plls
;
6301 struct intel_crtc
*crtc
;
6302 unsigned long irqflags
;
6305 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, base
.head
)
6306 WARN(crtc
->base
.enabled
, "CRTC for pipe %c enabled\n",
6307 pipe_name(crtc
->pipe
));
6309 WARN(I915_READ(HSW_PWR_WELL_DRIVER
), "Power well on\n");
6310 WARN(plls
->spll_refcount
, "SPLL enabled\n");
6311 WARN(plls
->wrpll1_refcount
, "WRPLL1 enabled\n");
6312 WARN(plls
->wrpll2_refcount
, "WRPLL2 enabled\n");
6313 WARN(I915_READ(PCH_PP_STATUS
) & PP_ON
, "Panel power on\n");
6314 WARN(I915_READ(BLC_PWM_CPU_CTL2
) & BLM_PWM_ENABLE
,
6315 "CPU PWM1 enabled\n");
6316 WARN(I915_READ(HSW_BLC_PWM2_CTL
) & BLM_PWM_ENABLE
,
6317 "CPU PWM2 enabled\n");
6318 WARN(I915_READ(BLC_PWM_PCH_CTL1
) & BLM_PCH_PWM_ENABLE
,
6319 "PCH PWM1 enabled\n");
6320 WARN(I915_READ(UTIL_PIN_CTL
) & UTIL_PIN_ENABLE
,
6321 "Utility pin enabled\n");
6322 WARN(I915_READ(PCH_GTC_CTL
) & PCH_GTC_ENABLE
, "PCH GTC enabled\n");
6324 spin_lock_irqsave(&dev_priv
->irq_lock
, irqflags
);
6325 val
= I915_READ(DEIMR
);
6326 WARN((val
& ~DE_PCH_EVENT_IVB
) != val
,
6327 "Unexpected DEIMR bits enabled: 0x%x\n", val
);
6328 val
= I915_READ(SDEIMR
);
6329 WARN((val
| SDE_HOTPLUG_MASK_CPT
) != 0xffffffff,
6330 "Unexpected SDEIMR bits enabled: 0x%x\n", val
);
6331 spin_unlock_irqrestore(&dev_priv
->irq_lock
, irqflags
);
6335 * This function implements pieces of two sequences from BSpec:
6336 * - Sequence for display software to disable LCPLL
6337 * - Sequence for display software to allow package C8+
6338 * The steps implemented here are just the steps that actually touch the LCPLL
6339 * register. Callers should take care of disabling all the display engine
6340 * functions, doing the mode unset, fixing interrupts, etc.
6342 static void hsw_disable_lcpll(struct drm_i915_private
*dev_priv
,
6343 bool switch_to_fclk
, bool allow_power_down
)
6347 assert_can_disable_lcpll(dev_priv
);
6349 val
= I915_READ(LCPLL_CTL
);
6351 if (switch_to_fclk
) {
6352 val
|= LCPLL_CD_SOURCE_FCLK
;
6353 I915_WRITE(LCPLL_CTL
, val
);
6355 if (wait_for_atomic_us(I915_READ(LCPLL_CTL
) &
6356 LCPLL_CD_SOURCE_FCLK_DONE
, 1))
6357 DRM_ERROR("Switching to FCLK failed\n");
6359 val
= I915_READ(LCPLL_CTL
);
6362 val
|= LCPLL_PLL_DISABLE
;
6363 I915_WRITE(LCPLL_CTL
, val
);
6364 POSTING_READ(LCPLL_CTL
);
6366 if (wait_for((I915_READ(LCPLL_CTL
) & LCPLL_PLL_LOCK
) == 0, 1))
6367 DRM_ERROR("LCPLL still locked\n");
6369 val
= I915_READ(D_COMP
);
6370 val
|= D_COMP_COMP_DISABLE
;
6371 mutex_lock(&dev_priv
->rps
.hw_lock
);
6372 if (sandybridge_pcode_write(dev_priv
, GEN6_PCODE_WRITE_D_COMP
, val
))
6373 DRM_ERROR("Failed to disable D_COMP\n");
6374 mutex_unlock(&dev_priv
->rps
.hw_lock
);
6375 POSTING_READ(D_COMP
);
6378 if (wait_for((I915_READ(D_COMP
) & D_COMP_RCOMP_IN_PROGRESS
) == 0, 1))
6379 DRM_ERROR("D_COMP RCOMP still in progress\n");
6381 if (allow_power_down
) {
6382 val
= I915_READ(LCPLL_CTL
);
6383 val
|= LCPLL_POWER_DOWN_ALLOW
;
6384 I915_WRITE(LCPLL_CTL
, val
);
6385 POSTING_READ(LCPLL_CTL
);
6390 * Fully restores LCPLL, disallowing power down and switching back to LCPLL
6393 static void hsw_restore_lcpll(struct drm_i915_private
*dev_priv
)
6397 val
= I915_READ(LCPLL_CTL
);
6399 if ((val
& (LCPLL_PLL_LOCK
| LCPLL_PLL_DISABLE
| LCPLL_CD_SOURCE_FCLK
|
6400 LCPLL_POWER_DOWN_ALLOW
)) == LCPLL_PLL_LOCK
)
6403 /* Make sure we're not on PC8 state before disabling PC8, otherwise
6404 * we'll hang the machine! */
6405 dev_priv
->uncore
.funcs
.force_wake_get(dev_priv
);
6407 if (val
& LCPLL_POWER_DOWN_ALLOW
) {
6408 val
&= ~LCPLL_POWER_DOWN_ALLOW
;
6409 I915_WRITE(LCPLL_CTL
, val
);
6410 POSTING_READ(LCPLL_CTL
);
6413 val
= I915_READ(D_COMP
);
6414 val
|= D_COMP_COMP_FORCE
;
6415 val
&= ~D_COMP_COMP_DISABLE
;
6416 mutex_lock(&dev_priv
->rps
.hw_lock
);
6417 if (sandybridge_pcode_write(dev_priv
, GEN6_PCODE_WRITE_D_COMP
, val
))
6418 DRM_ERROR("Failed to enable D_COMP\n");
6419 mutex_unlock(&dev_priv
->rps
.hw_lock
);
6420 POSTING_READ(D_COMP
);
6422 val
= I915_READ(LCPLL_CTL
);
6423 val
&= ~LCPLL_PLL_DISABLE
;
6424 I915_WRITE(LCPLL_CTL
, val
);
6426 if (wait_for(I915_READ(LCPLL_CTL
) & LCPLL_PLL_LOCK
, 5))
6427 DRM_ERROR("LCPLL not locked yet\n");
6429 if (val
& LCPLL_CD_SOURCE_FCLK
) {
6430 val
= I915_READ(LCPLL_CTL
);
6431 val
&= ~LCPLL_CD_SOURCE_FCLK
;
6432 I915_WRITE(LCPLL_CTL
, val
);
6434 if (wait_for_atomic_us((I915_READ(LCPLL_CTL
) &
6435 LCPLL_CD_SOURCE_FCLK_DONE
) == 0, 1))
6436 DRM_ERROR("Switching back to LCPLL failed\n");
6439 dev_priv
->uncore
.funcs
.force_wake_put(dev_priv
);
6442 void hsw_enable_pc8_work(struct work_struct
*__work
)
6444 struct drm_i915_private
*dev_priv
=
6445 container_of(to_delayed_work(__work
), struct drm_i915_private
,
6447 struct drm_device
*dev
= dev_priv
->dev
;
6450 if (dev_priv
->pc8
.enabled
)
6453 DRM_DEBUG_KMS("Enabling package C8+\n");
6455 dev_priv
->pc8
.enabled
= true;
6457 if (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) {
6458 val
= I915_READ(SOUTH_DSPCLK_GATE_D
);
6459 val
&= ~PCH_LP_PARTITION_LEVEL_DISABLE
;
6460 I915_WRITE(SOUTH_DSPCLK_GATE_D
, val
);
6463 lpt_disable_clkout_dp(dev
);
6464 hsw_pc8_disable_interrupts(dev
);
6465 hsw_disable_lcpll(dev_priv
, true, true);
6468 static void __hsw_enable_package_c8(struct drm_i915_private
*dev_priv
)
6470 WARN_ON(!mutex_is_locked(&dev_priv
->pc8
.lock
));
6471 WARN(dev_priv
->pc8
.disable_count
< 1,
6472 "pc8.disable_count: %d\n", dev_priv
->pc8
.disable_count
);
6474 dev_priv
->pc8
.disable_count
--;
6475 if (dev_priv
->pc8
.disable_count
!= 0)
6478 schedule_delayed_work(&dev_priv
->pc8
.enable_work
,
6479 msecs_to_jiffies(i915_pc8_timeout
));
6482 static void __hsw_disable_package_c8(struct drm_i915_private
*dev_priv
)
6484 struct drm_device
*dev
= dev_priv
->dev
;
6487 WARN_ON(!mutex_is_locked(&dev_priv
->pc8
.lock
));
6488 WARN(dev_priv
->pc8
.disable_count
< 0,
6489 "pc8.disable_count: %d\n", dev_priv
->pc8
.disable_count
);
6491 dev_priv
->pc8
.disable_count
++;
6492 if (dev_priv
->pc8
.disable_count
!= 1)
6495 cancel_delayed_work_sync(&dev_priv
->pc8
.enable_work
);
6496 if (!dev_priv
->pc8
.enabled
)
6499 DRM_DEBUG_KMS("Disabling package C8+\n");
6501 hsw_restore_lcpll(dev_priv
);
6502 hsw_pc8_restore_interrupts(dev
);
6503 lpt_init_pch_refclk(dev
);
6505 if (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) {
6506 val
= I915_READ(SOUTH_DSPCLK_GATE_D
);
6507 val
|= PCH_LP_PARTITION_LEVEL_DISABLE
;
6508 I915_WRITE(SOUTH_DSPCLK_GATE_D
, val
);
6511 intel_prepare_ddi(dev
);
6512 i915_gem_init_swizzling(dev
);
6513 mutex_lock(&dev_priv
->rps
.hw_lock
);
6514 gen6_update_ring_freq(dev
);
6515 mutex_unlock(&dev_priv
->rps
.hw_lock
);
6516 dev_priv
->pc8
.enabled
= false;
6519 void hsw_enable_package_c8(struct drm_i915_private
*dev_priv
)
6521 mutex_lock(&dev_priv
->pc8
.lock
);
6522 __hsw_enable_package_c8(dev_priv
);
6523 mutex_unlock(&dev_priv
->pc8
.lock
);
6526 void hsw_disable_package_c8(struct drm_i915_private
*dev_priv
)
6528 mutex_lock(&dev_priv
->pc8
.lock
);
6529 __hsw_disable_package_c8(dev_priv
);
6530 mutex_unlock(&dev_priv
->pc8
.lock
);
6533 static bool hsw_can_enable_package_c8(struct drm_i915_private
*dev_priv
)
6535 struct drm_device
*dev
= dev_priv
->dev
;
6536 struct intel_crtc
*crtc
;
6539 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, base
.head
)
6540 if (crtc
->base
.enabled
)
6543 /* This case is still possible since we have the i915.disable_power_well
6544 * parameter and also the KVMr or something else might be requesting the
6546 val
= I915_READ(HSW_PWR_WELL_DRIVER
);
6548 DRM_DEBUG_KMS("Not enabling PC8: power well on\n");
6555 /* Since we're called from modeset_global_resources there's no way to
6556 * symmetrically increase and decrease the refcount, so we use
6557 * dev_priv->pc8.requirements_met to track whether we already have the refcount
6560 static void hsw_update_package_c8(struct drm_device
*dev
)
6562 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6565 if (!i915_enable_pc8
)
6568 mutex_lock(&dev_priv
->pc8
.lock
);
6570 allow
= hsw_can_enable_package_c8(dev_priv
);
6572 if (allow
== dev_priv
->pc8
.requirements_met
)
6575 dev_priv
->pc8
.requirements_met
= allow
;
6578 __hsw_enable_package_c8(dev_priv
);
6580 __hsw_disable_package_c8(dev_priv
);
6583 mutex_unlock(&dev_priv
->pc8
.lock
);
6586 static void hsw_package_c8_gpu_idle(struct drm_i915_private
*dev_priv
)
6588 if (!dev_priv
->pc8
.gpu_idle
) {
6589 dev_priv
->pc8
.gpu_idle
= true;
6590 hsw_enable_package_c8(dev_priv
);
6594 static void hsw_package_c8_gpu_busy(struct drm_i915_private
*dev_priv
)
6596 if (dev_priv
->pc8
.gpu_idle
) {
6597 dev_priv
->pc8
.gpu_idle
= false;
6598 hsw_disable_package_c8(dev_priv
);
6602 #define for_each_power_domain(domain, mask) \
6603 for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
6604 if ((1 << (domain)) & (mask))
6606 static unsigned long get_pipe_power_domains(struct drm_device
*dev
,
6607 enum pipe pipe
, bool pfit_enabled
)
6610 enum transcoder transcoder
;
6612 transcoder
= intel_pipe_to_cpu_transcoder(dev
->dev_private
, pipe
);
6614 mask
= BIT(POWER_DOMAIN_PIPE(pipe
));
6615 mask
|= BIT(POWER_DOMAIN_TRANSCODER(transcoder
));
6617 mask
|= BIT(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe
));
6622 void intel_display_set_init_power(struct drm_device
*dev
, bool enable
)
6624 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6626 if (dev_priv
->power_domains
.init_power_on
== enable
)
6630 intel_display_power_get(dev
, POWER_DOMAIN_INIT
);
6632 intel_display_power_put(dev
, POWER_DOMAIN_INIT
);
6634 dev_priv
->power_domains
.init_power_on
= enable
;
6637 static void modeset_update_power_wells(struct drm_device
*dev
)
6639 unsigned long pipe_domains
[I915_MAX_PIPES
] = { 0, };
6640 struct intel_crtc
*crtc
;
6643 * First get all needed power domains, then put all unneeded, to avoid
6644 * any unnecessary toggling of the power wells.
6646 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, base
.head
) {
6647 enum intel_display_power_domain domain
;
6649 if (!crtc
->base
.enabled
)
6652 pipe_domains
[crtc
->pipe
] = get_pipe_power_domains(dev
,
6654 crtc
->config
.pch_pfit
.enabled
);
6656 for_each_power_domain(domain
, pipe_domains
[crtc
->pipe
])
6657 intel_display_power_get(dev
, domain
);
6660 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, base
.head
) {
6661 enum intel_display_power_domain domain
;
6663 for_each_power_domain(domain
, crtc
->enabled_power_domains
)
6664 intel_display_power_put(dev
, domain
);
6666 crtc
->enabled_power_domains
= pipe_domains
[crtc
->pipe
];
6669 intel_display_set_init_power(dev
, false);
6672 static void haswell_modeset_global_resources(struct drm_device
*dev
)
6674 modeset_update_power_wells(dev
);
6675 hsw_update_package_c8(dev
);
6678 static int haswell_crtc_mode_set(struct drm_crtc
*crtc
,
6680 struct drm_framebuffer
*fb
)
6682 struct drm_device
*dev
= crtc
->dev
;
6683 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6684 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6685 int plane
= intel_crtc
->plane
;
6688 if (!intel_ddi_pll_mode_set(crtc
))
6691 if (intel_crtc
->config
.has_dp_encoder
)
6692 intel_dp_set_m_n(intel_crtc
);
6694 intel_crtc
->lowfreq_avail
= false;
6696 intel_set_pipe_timings(intel_crtc
);
6698 if (intel_crtc
->config
.has_pch_encoder
) {
6699 intel_cpu_transcoder_set_m_n(intel_crtc
,
6700 &intel_crtc
->config
.fdi_m_n
);
6703 haswell_set_pipeconf(crtc
);
6705 intel_set_pipe_csc(crtc
);
6707 /* Set up the display plane register */
6708 I915_WRITE(DSPCNTR(plane
), DISPPLANE_GAMMA_ENABLE
| DISPPLANE_PIPE_CSC_ENABLE
);
6709 POSTING_READ(DSPCNTR(plane
));
6711 ret
= intel_pipe_set_base(crtc
, x
, y
, fb
);
6716 static bool haswell_get_pipe_config(struct intel_crtc
*crtc
,
6717 struct intel_crtc_config
*pipe_config
)
6719 struct drm_device
*dev
= crtc
->base
.dev
;
6720 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6721 enum intel_display_power_domain pfit_domain
;
6724 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
6725 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
6727 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP
));
6728 if (tmp
& TRANS_DDI_FUNC_ENABLE
) {
6729 enum pipe trans_edp_pipe
;
6730 switch (tmp
& TRANS_DDI_EDP_INPUT_MASK
) {
6732 WARN(1, "unknown pipe linked to edp transcoder\n");
6733 case TRANS_DDI_EDP_INPUT_A_ONOFF
:
6734 case TRANS_DDI_EDP_INPUT_A_ON
:
6735 trans_edp_pipe
= PIPE_A
;
6737 case TRANS_DDI_EDP_INPUT_B_ONOFF
:
6738 trans_edp_pipe
= PIPE_B
;
6740 case TRANS_DDI_EDP_INPUT_C_ONOFF
:
6741 trans_edp_pipe
= PIPE_C
;
6745 if (trans_edp_pipe
== crtc
->pipe
)
6746 pipe_config
->cpu_transcoder
= TRANSCODER_EDP
;
6749 if (!intel_display_power_enabled(dev
,
6750 POWER_DOMAIN_TRANSCODER(pipe_config
->cpu_transcoder
)))
6753 tmp
= I915_READ(PIPECONF(pipe_config
->cpu_transcoder
));
6754 if (!(tmp
& PIPECONF_ENABLE
))
6758 * Haswell has only FDI/PCH transcoder A. It is which is connected to
6759 * DDI E. So just check whether this pipe is wired to DDI E and whether
6760 * the PCH transcoder is on.
6762 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(pipe_config
->cpu_transcoder
));
6763 if ((tmp
& TRANS_DDI_PORT_MASK
) == TRANS_DDI_SELECT_PORT(PORT_E
) &&
6764 I915_READ(LPT_TRANSCONF
) & TRANS_ENABLE
) {
6765 pipe_config
->has_pch_encoder
= true;
6767 tmp
= I915_READ(FDI_RX_CTL(PIPE_A
));
6768 pipe_config
->fdi_lanes
= ((FDI_DP_PORT_WIDTH_MASK
& tmp
) >>
6769 FDI_DP_PORT_WIDTH_SHIFT
) + 1;
6771 ironlake_get_fdi_m_n_config(crtc
, pipe_config
);
6774 intel_get_pipe_timings(crtc
, pipe_config
);
6776 pfit_domain
= POWER_DOMAIN_PIPE_PANEL_FITTER(crtc
->pipe
);
6777 if (intel_display_power_enabled(dev
, pfit_domain
))
6778 ironlake_get_pfit_config(crtc
, pipe_config
);
6780 pipe_config
->ips_enabled
= hsw_crtc_supports_ips(crtc
) &&
6781 (I915_READ(IPS_CTL
) & IPS_ENABLE
);
6783 pipe_config
->pixel_multiplier
= 1;
6788 static int intel_crtc_mode_set(struct drm_crtc
*crtc
,
6790 struct drm_framebuffer
*fb
)
6792 struct drm_device
*dev
= crtc
->dev
;
6793 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6794 struct intel_encoder
*encoder
;
6795 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6796 struct drm_display_mode
*mode
= &intel_crtc
->config
.requested_mode
;
6797 int pipe
= intel_crtc
->pipe
;
6800 drm_vblank_pre_modeset(dev
, pipe
);
6802 ret
= dev_priv
->display
.crtc_mode_set(crtc
, x
, y
, fb
);
6804 drm_vblank_post_modeset(dev
, pipe
);
6809 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
6810 DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
6811 encoder
->base
.base
.id
,
6812 drm_get_encoder_name(&encoder
->base
),
6813 mode
->base
.id
, mode
->name
);
6814 encoder
->mode_set(encoder
);
6823 } hdmi_audio_clock
[] = {
6824 { DIV_ROUND_UP(25200 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_25175
},
6825 { 25200, AUD_CONFIG_PIXEL_CLOCK_HDMI_25200
}, /* default per bspec */
6826 { 27000, AUD_CONFIG_PIXEL_CLOCK_HDMI_27000
},
6827 { 27000 * 1001 / 1000, AUD_CONFIG_PIXEL_CLOCK_HDMI_27027
},
6828 { 54000, AUD_CONFIG_PIXEL_CLOCK_HDMI_54000
},
6829 { 54000 * 1001 / 1000, AUD_CONFIG_PIXEL_CLOCK_HDMI_54054
},
6830 { DIV_ROUND_UP(74250 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_74176
},
6831 { 74250, AUD_CONFIG_PIXEL_CLOCK_HDMI_74250
},
6832 { DIV_ROUND_UP(148500 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_148352
},
6833 { 148500, AUD_CONFIG_PIXEL_CLOCK_HDMI_148500
},
6836 /* get AUD_CONFIG_PIXEL_CLOCK_HDMI_* value for mode */
6837 static u32
audio_config_hdmi_pixel_clock(struct drm_display_mode
*mode
)
6841 for (i
= 0; i
< ARRAY_SIZE(hdmi_audio_clock
); i
++) {
6842 if (mode
->clock
== hdmi_audio_clock
[i
].clock
)
6846 if (i
== ARRAY_SIZE(hdmi_audio_clock
)) {
6847 DRM_DEBUG_KMS("HDMI audio pixel clock setting for %d not found, falling back to defaults\n", mode
->clock
);
6851 DRM_DEBUG_KMS("Configuring HDMI audio for pixel clock %d (0x%08x)\n",
6852 hdmi_audio_clock
[i
].clock
,
6853 hdmi_audio_clock
[i
].config
);
6855 return hdmi_audio_clock
[i
].config
;
6858 static bool intel_eld_uptodate(struct drm_connector
*connector
,
6859 int reg_eldv
, uint32_t bits_eldv
,
6860 int reg_elda
, uint32_t bits_elda
,
6863 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
6864 uint8_t *eld
= connector
->eld
;
6867 i
= I915_READ(reg_eldv
);
6876 i
= I915_READ(reg_elda
);
6878 I915_WRITE(reg_elda
, i
);
6880 for (i
= 0; i
< eld
[2]; i
++)
6881 if (I915_READ(reg_edid
) != *((uint32_t *)eld
+ i
))
6887 static void g4x_write_eld(struct drm_connector
*connector
,
6888 struct drm_crtc
*crtc
,
6889 struct drm_display_mode
*mode
)
6891 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
6892 uint8_t *eld
= connector
->eld
;
6897 i
= I915_READ(G4X_AUD_VID_DID
);
6899 if (i
== INTEL_AUDIO_DEVBLC
|| i
== INTEL_AUDIO_DEVCL
)
6900 eldv
= G4X_ELDV_DEVCL_DEVBLC
;
6902 eldv
= G4X_ELDV_DEVCTG
;
6904 if (intel_eld_uptodate(connector
,
6905 G4X_AUD_CNTL_ST
, eldv
,
6906 G4X_AUD_CNTL_ST
, G4X_ELD_ADDR
,
6907 G4X_HDMIW_HDMIEDID
))
6910 i
= I915_READ(G4X_AUD_CNTL_ST
);
6911 i
&= ~(eldv
| G4X_ELD_ADDR
);
6912 len
= (i
>> 9) & 0x1f; /* ELD buffer size */
6913 I915_WRITE(G4X_AUD_CNTL_ST
, i
);
6918 len
= min_t(uint8_t, eld
[2], len
);
6919 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
6920 for (i
= 0; i
< len
; i
++)
6921 I915_WRITE(G4X_HDMIW_HDMIEDID
, *((uint32_t *)eld
+ i
));
6923 i
= I915_READ(G4X_AUD_CNTL_ST
);
6925 I915_WRITE(G4X_AUD_CNTL_ST
, i
);
6928 static void haswell_write_eld(struct drm_connector
*connector
,
6929 struct drm_crtc
*crtc
,
6930 struct drm_display_mode
*mode
)
6932 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
6933 uint8_t *eld
= connector
->eld
;
6934 struct drm_device
*dev
= crtc
->dev
;
6935 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6939 int pipe
= to_intel_crtc(crtc
)->pipe
;
6942 int hdmiw_hdmiedid
= HSW_AUD_EDID_DATA(pipe
);
6943 int aud_cntl_st
= HSW_AUD_DIP_ELD_CTRL(pipe
);
6944 int aud_config
= HSW_AUD_CFG(pipe
);
6945 int aud_cntrl_st2
= HSW_AUD_PIN_ELD_CP_VLD
;
6948 DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n");
6950 /* Audio output enable */
6951 DRM_DEBUG_DRIVER("HDMI audio: enable codec\n");
6952 tmp
= I915_READ(aud_cntrl_st2
);
6953 tmp
|= (AUDIO_OUTPUT_ENABLE_A
<< (pipe
* 4));
6954 I915_WRITE(aud_cntrl_st2
, tmp
);
6956 /* Wait for 1 vertical blank */
6957 intel_wait_for_vblank(dev
, pipe
);
6959 /* Set ELD valid state */
6960 tmp
= I915_READ(aud_cntrl_st2
);
6961 DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%08x\n", tmp
);
6962 tmp
|= (AUDIO_ELD_VALID_A
<< (pipe
* 4));
6963 I915_WRITE(aud_cntrl_st2
, tmp
);
6964 tmp
= I915_READ(aud_cntrl_st2
);
6965 DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%08x\n", tmp
);
6967 /* Enable HDMI mode */
6968 tmp
= I915_READ(aud_config
);
6969 DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%08x\n", tmp
);
6970 /* clear N_programing_enable and N_value_index */
6971 tmp
&= ~(AUD_CONFIG_N_VALUE_INDEX
| AUD_CONFIG_N_PROG_ENABLE
);
6972 I915_WRITE(aud_config
, tmp
);
6974 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe
));
6976 eldv
= AUDIO_ELD_VALID_A
<< (pipe
* 4);
6977 intel_crtc
->eld_vld
= true;
6979 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
)) {
6980 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
6981 eld
[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
6982 I915_WRITE(aud_config
, AUD_CONFIG_N_VALUE_INDEX
); /* 0x1 = DP */
6984 I915_WRITE(aud_config
, audio_config_hdmi_pixel_clock(mode
));
6987 if (intel_eld_uptodate(connector
,
6988 aud_cntrl_st2
, eldv
,
6989 aud_cntl_st
, IBX_ELD_ADDRESS
,
6993 i
= I915_READ(aud_cntrl_st2
);
6995 I915_WRITE(aud_cntrl_st2
, i
);
7000 i
= I915_READ(aud_cntl_st
);
7001 i
&= ~IBX_ELD_ADDRESS
;
7002 I915_WRITE(aud_cntl_st
, i
);
7003 i
= (i
>> 29) & DIP_PORT_SEL_MASK
; /* DIP_Port_Select, 0x1 = PortB */
7004 DRM_DEBUG_DRIVER("port num:%d\n", i
);
7006 len
= min_t(uint8_t, eld
[2], 21); /* 84 bytes of hw ELD buffer */
7007 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
7008 for (i
= 0; i
< len
; i
++)
7009 I915_WRITE(hdmiw_hdmiedid
, *((uint32_t *)eld
+ i
));
7011 i
= I915_READ(aud_cntrl_st2
);
7013 I915_WRITE(aud_cntrl_st2
, i
);
7017 static void ironlake_write_eld(struct drm_connector
*connector
,
7018 struct drm_crtc
*crtc
,
7019 struct drm_display_mode
*mode
)
7021 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
7022 uint8_t *eld
= connector
->eld
;
7030 int pipe
= to_intel_crtc(crtc
)->pipe
;
7032 if (HAS_PCH_IBX(connector
->dev
)) {
7033 hdmiw_hdmiedid
= IBX_HDMIW_HDMIEDID(pipe
);
7034 aud_config
= IBX_AUD_CFG(pipe
);
7035 aud_cntl_st
= IBX_AUD_CNTL_ST(pipe
);
7036 aud_cntrl_st2
= IBX_AUD_CNTL_ST2
;
7037 } else if (IS_VALLEYVIEW(connector
->dev
)) {
7038 hdmiw_hdmiedid
= VLV_HDMIW_HDMIEDID(pipe
);
7039 aud_config
= VLV_AUD_CFG(pipe
);
7040 aud_cntl_st
= VLV_AUD_CNTL_ST(pipe
);
7041 aud_cntrl_st2
= VLV_AUD_CNTL_ST2
;
7043 hdmiw_hdmiedid
= CPT_HDMIW_HDMIEDID(pipe
);
7044 aud_config
= CPT_AUD_CFG(pipe
);
7045 aud_cntl_st
= CPT_AUD_CNTL_ST(pipe
);
7046 aud_cntrl_st2
= CPT_AUD_CNTRL_ST2
;
7049 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe
));
7051 if (IS_VALLEYVIEW(connector
->dev
)) {
7052 struct intel_encoder
*intel_encoder
;
7053 struct intel_digital_port
*intel_dig_port
;
7055 intel_encoder
= intel_attached_encoder(connector
);
7056 intel_dig_port
= enc_to_dig_port(&intel_encoder
->base
);
7057 i
= intel_dig_port
->port
;
7059 i
= I915_READ(aud_cntl_st
);
7060 i
= (i
>> 29) & DIP_PORT_SEL_MASK
;
7061 /* DIP_Port_Select, 0x1 = PortB */
7065 DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
7066 /* operate blindly on all ports */
7067 eldv
= IBX_ELD_VALIDB
;
7068 eldv
|= IBX_ELD_VALIDB
<< 4;
7069 eldv
|= IBX_ELD_VALIDB
<< 8;
7071 DRM_DEBUG_DRIVER("ELD on port %c\n", port_name(i
));
7072 eldv
= IBX_ELD_VALIDB
<< ((i
- 1) * 4);
7075 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
)) {
7076 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
7077 eld
[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
7078 I915_WRITE(aud_config
, AUD_CONFIG_N_VALUE_INDEX
); /* 0x1 = DP */
7080 I915_WRITE(aud_config
, audio_config_hdmi_pixel_clock(mode
));
7083 if (intel_eld_uptodate(connector
,
7084 aud_cntrl_st2
, eldv
,
7085 aud_cntl_st
, IBX_ELD_ADDRESS
,
7089 i
= I915_READ(aud_cntrl_st2
);
7091 I915_WRITE(aud_cntrl_st2
, i
);
7096 i
= I915_READ(aud_cntl_st
);
7097 i
&= ~IBX_ELD_ADDRESS
;
7098 I915_WRITE(aud_cntl_st
, i
);
7100 len
= min_t(uint8_t, eld
[2], 21); /* 84 bytes of hw ELD buffer */
7101 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
7102 for (i
= 0; i
< len
; i
++)
7103 I915_WRITE(hdmiw_hdmiedid
, *((uint32_t *)eld
+ i
));
7105 i
= I915_READ(aud_cntrl_st2
);
7107 I915_WRITE(aud_cntrl_st2
, i
);
7110 void intel_write_eld(struct drm_encoder
*encoder
,
7111 struct drm_display_mode
*mode
)
7113 struct drm_crtc
*crtc
= encoder
->crtc
;
7114 struct drm_connector
*connector
;
7115 struct drm_device
*dev
= encoder
->dev
;
7116 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7118 connector
= drm_select_eld(encoder
, mode
);
7122 DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
7124 drm_get_connector_name(connector
),
7125 connector
->encoder
->base
.id
,
7126 drm_get_encoder_name(connector
->encoder
));
7128 connector
->eld
[6] = drm_av_sync_delay(connector
, mode
) / 2;
7130 if (dev_priv
->display
.write_eld
)
7131 dev_priv
->display
.write_eld(connector
, crtc
, mode
);
7134 static void i845_update_cursor(struct drm_crtc
*crtc
, u32 base
)
7136 struct drm_device
*dev
= crtc
->dev
;
7137 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7138 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7139 bool visible
= base
!= 0;
7142 if (intel_crtc
->cursor_visible
== visible
)
7145 cntl
= I915_READ(_CURACNTR
);
7147 /* On these chipsets we can only modify the base whilst
7148 * the cursor is disabled.
7150 I915_WRITE(_CURABASE
, base
);
7152 cntl
&= ~(CURSOR_FORMAT_MASK
);
7153 /* XXX width must be 64, stride 256 => 0x00 << 28 */
7154 cntl
|= CURSOR_ENABLE
|
7155 CURSOR_GAMMA_ENABLE
|
7158 cntl
&= ~(CURSOR_ENABLE
| CURSOR_GAMMA_ENABLE
);
7159 I915_WRITE(_CURACNTR
, cntl
);
7161 intel_crtc
->cursor_visible
= visible
;
7164 static void i9xx_update_cursor(struct drm_crtc
*crtc
, u32 base
)
7166 struct drm_device
*dev
= crtc
->dev
;
7167 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7168 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7169 int pipe
= intel_crtc
->pipe
;
7170 bool visible
= base
!= 0;
7172 if (intel_crtc
->cursor_visible
!= visible
) {
7173 uint32_t cntl
= I915_READ(CURCNTR(pipe
));
7175 cntl
&= ~(CURSOR_MODE
| MCURSOR_PIPE_SELECT
);
7176 cntl
|= CURSOR_MODE_64_ARGB_AX
| MCURSOR_GAMMA_ENABLE
;
7177 cntl
|= pipe
<< 28; /* Connect to correct pipe */
7179 cntl
&= ~(CURSOR_MODE
| MCURSOR_GAMMA_ENABLE
);
7180 cntl
|= CURSOR_MODE_DISABLE
;
7182 I915_WRITE(CURCNTR(pipe
), cntl
);
7184 intel_crtc
->cursor_visible
= visible
;
7186 /* and commit changes on next vblank */
7187 I915_WRITE(CURBASE(pipe
), base
);
7190 static void ivb_update_cursor(struct drm_crtc
*crtc
, u32 base
)
7192 struct drm_device
*dev
= crtc
->dev
;
7193 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7194 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7195 int pipe
= intel_crtc
->pipe
;
7196 bool visible
= base
!= 0;
7198 if (intel_crtc
->cursor_visible
!= visible
) {
7199 uint32_t cntl
= I915_READ(CURCNTR_IVB(pipe
));
7201 cntl
&= ~CURSOR_MODE
;
7202 cntl
|= CURSOR_MODE_64_ARGB_AX
| MCURSOR_GAMMA_ENABLE
;
7204 cntl
&= ~(CURSOR_MODE
| MCURSOR_GAMMA_ENABLE
);
7205 cntl
|= CURSOR_MODE_DISABLE
;
7207 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
7208 cntl
|= CURSOR_PIPE_CSC_ENABLE
;
7209 cntl
&= ~CURSOR_TRICKLE_FEED_DISABLE
;
7211 I915_WRITE(CURCNTR_IVB(pipe
), cntl
);
7213 intel_crtc
->cursor_visible
= visible
;
7215 /* and commit changes on next vblank */
7216 I915_WRITE(CURBASE_IVB(pipe
), base
);
7219 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
7220 static void intel_crtc_update_cursor(struct drm_crtc
*crtc
,
7223 struct drm_device
*dev
= crtc
->dev
;
7224 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7225 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7226 int pipe
= intel_crtc
->pipe
;
7227 int x
= intel_crtc
->cursor_x
;
7228 int y
= intel_crtc
->cursor_y
;
7229 u32 base
= 0, pos
= 0;
7233 base
= intel_crtc
->cursor_addr
;
7235 if (x
>= intel_crtc
->config
.pipe_src_w
)
7238 if (y
>= intel_crtc
->config
.pipe_src_h
)
7242 if (x
+ intel_crtc
->cursor_width
<= 0)
7245 pos
|= CURSOR_POS_SIGN
<< CURSOR_X_SHIFT
;
7248 pos
|= x
<< CURSOR_X_SHIFT
;
7251 if (y
+ intel_crtc
->cursor_height
<= 0)
7254 pos
|= CURSOR_POS_SIGN
<< CURSOR_Y_SHIFT
;
7257 pos
|= y
<< CURSOR_Y_SHIFT
;
7259 visible
= base
!= 0;
7260 if (!visible
&& !intel_crtc
->cursor_visible
)
7263 if (IS_IVYBRIDGE(dev
) || IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
7264 I915_WRITE(CURPOS_IVB(pipe
), pos
);
7265 ivb_update_cursor(crtc
, base
);
7267 I915_WRITE(CURPOS(pipe
), pos
);
7268 if (IS_845G(dev
) || IS_I865G(dev
))
7269 i845_update_cursor(crtc
, base
);
7271 i9xx_update_cursor(crtc
, base
);
7275 static int intel_crtc_cursor_set(struct drm_crtc
*crtc
,
7276 struct drm_file
*file
,
7278 uint32_t width
, uint32_t height
)
7280 struct drm_device
*dev
= crtc
->dev
;
7281 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7282 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7283 struct drm_i915_gem_object
*obj
;
7287 /* if we want to turn off the cursor ignore width and height */
7289 DRM_DEBUG_KMS("cursor off\n");
7292 mutex_lock(&dev
->struct_mutex
);
7296 /* Currently we only support 64x64 cursors */
7297 if (width
!= 64 || height
!= 64) {
7298 DRM_ERROR("we currently only support 64x64 cursors\n");
7302 obj
= to_intel_bo(drm_gem_object_lookup(dev
, file
, handle
));
7303 if (&obj
->base
== NULL
)
7306 if (obj
->base
.size
< width
* height
* 4) {
7307 DRM_ERROR("buffer is to small\n");
7312 /* we only need to pin inside GTT if cursor is non-phy */
7313 mutex_lock(&dev
->struct_mutex
);
7314 if (!dev_priv
->info
->cursor_needs_physical
) {
7317 if (obj
->tiling_mode
) {
7318 DRM_ERROR("cursor cannot be tiled\n");
7323 /* Note that the w/a also requires 2 PTE of padding following
7324 * the bo. We currently fill all unused PTE with the shadow
7325 * page and so we should always have valid PTE following the
7326 * cursor preventing the VT-d warning.
7329 if (need_vtd_wa(dev
))
7330 alignment
= 64*1024;
7332 ret
= i915_gem_object_pin_to_display_plane(obj
, alignment
, NULL
);
7334 DRM_ERROR("failed to move cursor bo into the GTT\n");
7338 ret
= i915_gem_object_put_fence(obj
);
7340 DRM_ERROR("failed to release fence for cursor");
7344 addr
= i915_gem_obj_ggtt_offset(obj
);
7346 int align
= IS_I830(dev
) ? 16 * 1024 : 256;
7347 ret
= i915_gem_attach_phys_object(dev
, obj
,
7348 (intel_crtc
->pipe
== 0) ? I915_GEM_PHYS_CURSOR_0
: I915_GEM_PHYS_CURSOR_1
,
7351 DRM_ERROR("failed to attach phys object\n");
7354 addr
= obj
->phys_obj
->handle
->busaddr
;
7358 I915_WRITE(CURSIZE
, (height
<< 12) | width
);
7361 if (intel_crtc
->cursor_bo
) {
7362 if (dev_priv
->info
->cursor_needs_physical
) {
7363 if (intel_crtc
->cursor_bo
!= obj
)
7364 i915_gem_detach_phys_object(dev
, intel_crtc
->cursor_bo
);
7366 i915_gem_object_unpin_from_display_plane(intel_crtc
->cursor_bo
);
7367 drm_gem_object_unreference(&intel_crtc
->cursor_bo
->base
);
7370 mutex_unlock(&dev
->struct_mutex
);
7372 intel_crtc
->cursor_addr
= addr
;
7373 intel_crtc
->cursor_bo
= obj
;
7374 intel_crtc
->cursor_width
= width
;
7375 intel_crtc
->cursor_height
= height
;
7377 if (intel_crtc
->active
)
7378 intel_crtc_update_cursor(crtc
, intel_crtc
->cursor_bo
!= NULL
);
7382 i915_gem_object_unpin_from_display_plane(obj
);
7384 mutex_unlock(&dev
->struct_mutex
);
7386 drm_gem_object_unreference_unlocked(&obj
->base
);
7390 static int intel_crtc_cursor_move(struct drm_crtc
*crtc
, int x
, int y
)
7392 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7394 intel_crtc
->cursor_x
= clamp_t(int, x
, SHRT_MIN
, SHRT_MAX
);
7395 intel_crtc
->cursor_y
= clamp_t(int, y
, SHRT_MIN
, SHRT_MAX
);
7397 if (intel_crtc
->active
)
7398 intel_crtc_update_cursor(crtc
, intel_crtc
->cursor_bo
!= NULL
);
7403 static void intel_crtc_gamma_set(struct drm_crtc
*crtc
, u16
*red
, u16
*green
,
7404 u16
*blue
, uint32_t start
, uint32_t size
)
7406 int end
= (start
+ size
> 256) ? 256 : start
+ size
, i
;
7407 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7409 for (i
= start
; i
< end
; i
++) {
7410 intel_crtc
->lut_r
[i
] = red
[i
] >> 8;
7411 intel_crtc
->lut_g
[i
] = green
[i
] >> 8;
7412 intel_crtc
->lut_b
[i
] = blue
[i
] >> 8;
7415 intel_crtc_load_lut(crtc
);
7418 /* VESA 640x480x72Hz mode to set on the pipe */
7419 static struct drm_display_mode load_detect_mode
= {
7420 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT
, 31500, 640, 664,
7421 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
7424 static struct drm_framebuffer
*
7425 intel_framebuffer_create(struct drm_device
*dev
,
7426 struct drm_mode_fb_cmd2
*mode_cmd
,
7427 struct drm_i915_gem_object
*obj
)
7429 struct intel_framebuffer
*intel_fb
;
7432 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
7434 drm_gem_object_unreference_unlocked(&obj
->base
);
7435 return ERR_PTR(-ENOMEM
);
7438 ret
= i915_mutex_lock_interruptible(dev
);
7442 ret
= intel_framebuffer_init(dev
, intel_fb
, mode_cmd
, obj
);
7443 mutex_unlock(&dev
->struct_mutex
);
7447 return &intel_fb
->base
;
7449 drm_gem_object_unreference_unlocked(&obj
->base
);
7452 return ERR_PTR(ret
);
7456 intel_framebuffer_pitch_for_width(int width
, int bpp
)
7458 u32 pitch
= DIV_ROUND_UP(width
* bpp
, 8);
7459 return ALIGN(pitch
, 64);
7463 intel_framebuffer_size_for_mode(struct drm_display_mode
*mode
, int bpp
)
7465 u32 pitch
= intel_framebuffer_pitch_for_width(mode
->hdisplay
, bpp
);
7466 return ALIGN(pitch
* mode
->vdisplay
, PAGE_SIZE
);
7469 static struct drm_framebuffer
*
7470 intel_framebuffer_create_for_mode(struct drm_device
*dev
,
7471 struct drm_display_mode
*mode
,
7474 struct drm_i915_gem_object
*obj
;
7475 struct drm_mode_fb_cmd2 mode_cmd
= { 0 };
7477 obj
= i915_gem_alloc_object(dev
,
7478 intel_framebuffer_size_for_mode(mode
, bpp
));
7480 return ERR_PTR(-ENOMEM
);
7482 mode_cmd
.width
= mode
->hdisplay
;
7483 mode_cmd
.height
= mode
->vdisplay
;
7484 mode_cmd
.pitches
[0] = intel_framebuffer_pitch_for_width(mode_cmd
.width
,
7486 mode_cmd
.pixel_format
= drm_mode_legacy_fb_format(bpp
, depth
);
7488 return intel_framebuffer_create(dev
, &mode_cmd
, obj
);
7491 static struct drm_framebuffer
*
7492 mode_fits_in_fbdev(struct drm_device
*dev
,
7493 struct drm_display_mode
*mode
)
7495 #ifdef CONFIG_DRM_I915_FBDEV
7496 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7497 struct drm_i915_gem_object
*obj
;
7498 struct drm_framebuffer
*fb
;
7500 if (dev_priv
->fbdev
== NULL
)
7503 obj
= dev_priv
->fbdev
->ifb
.obj
;
7507 fb
= &dev_priv
->fbdev
->ifb
.base
;
7508 if (fb
->pitches
[0] < intel_framebuffer_pitch_for_width(mode
->hdisplay
,
7509 fb
->bits_per_pixel
))
7512 if (obj
->base
.size
< mode
->vdisplay
* fb
->pitches
[0])
7521 bool intel_get_load_detect_pipe(struct drm_connector
*connector
,
7522 struct drm_display_mode
*mode
,
7523 struct intel_load_detect_pipe
*old
)
7525 struct intel_crtc
*intel_crtc
;
7526 struct intel_encoder
*intel_encoder
=
7527 intel_attached_encoder(connector
);
7528 struct drm_crtc
*possible_crtc
;
7529 struct drm_encoder
*encoder
= &intel_encoder
->base
;
7530 struct drm_crtc
*crtc
= NULL
;
7531 struct drm_device
*dev
= encoder
->dev
;
7532 struct drm_framebuffer
*fb
;
7535 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
7536 connector
->base
.id
, drm_get_connector_name(connector
),
7537 encoder
->base
.id
, drm_get_encoder_name(encoder
));
7540 * Algorithm gets a little messy:
7542 * - if the connector already has an assigned crtc, use it (but make
7543 * sure it's on first)
7545 * - try to find the first unused crtc that can drive this connector,
7546 * and use that if we find one
7549 /* See if we already have a CRTC for this connector */
7550 if (encoder
->crtc
) {
7551 crtc
= encoder
->crtc
;
7553 mutex_lock(&crtc
->mutex
);
7555 old
->dpms_mode
= connector
->dpms
;
7556 old
->load_detect_temp
= false;
7558 /* Make sure the crtc and connector are running */
7559 if (connector
->dpms
!= DRM_MODE_DPMS_ON
)
7560 connector
->funcs
->dpms(connector
, DRM_MODE_DPMS_ON
);
7565 /* Find an unused one (if possible) */
7566 list_for_each_entry(possible_crtc
, &dev
->mode_config
.crtc_list
, head
) {
7568 if (!(encoder
->possible_crtcs
& (1 << i
)))
7570 if (!possible_crtc
->enabled
) {
7571 crtc
= possible_crtc
;
7577 * If we didn't find an unused CRTC, don't use any.
7580 DRM_DEBUG_KMS("no pipe available for load-detect\n");
7584 mutex_lock(&crtc
->mutex
);
7585 intel_encoder
->new_crtc
= to_intel_crtc(crtc
);
7586 to_intel_connector(connector
)->new_encoder
= intel_encoder
;
7588 intel_crtc
= to_intel_crtc(crtc
);
7589 old
->dpms_mode
= connector
->dpms
;
7590 old
->load_detect_temp
= true;
7591 old
->release_fb
= NULL
;
7594 mode
= &load_detect_mode
;
7596 /* We need a framebuffer large enough to accommodate all accesses
7597 * that the plane may generate whilst we perform load detection.
7598 * We can not rely on the fbcon either being present (we get called
7599 * during its initialisation to detect all boot displays, or it may
7600 * not even exist) or that it is large enough to satisfy the
7603 fb
= mode_fits_in_fbdev(dev
, mode
);
7605 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
7606 fb
= intel_framebuffer_create_for_mode(dev
, mode
, 24, 32);
7607 old
->release_fb
= fb
;
7609 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
7611 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
7612 mutex_unlock(&crtc
->mutex
);
7616 if (intel_set_mode(crtc
, mode
, 0, 0, fb
)) {
7617 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
7618 if (old
->release_fb
)
7619 old
->release_fb
->funcs
->destroy(old
->release_fb
);
7620 mutex_unlock(&crtc
->mutex
);
7624 /* let the connector get through one full cycle before testing */
7625 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
7629 void intel_release_load_detect_pipe(struct drm_connector
*connector
,
7630 struct intel_load_detect_pipe
*old
)
7632 struct intel_encoder
*intel_encoder
=
7633 intel_attached_encoder(connector
);
7634 struct drm_encoder
*encoder
= &intel_encoder
->base
;
7635 struct drm_crtc
*crtc
= encoder
->crtc
;
7637 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
7638 connector
->base
.id
, drm_get_connector_name(connector
),
7639 encoder
->base
.id
, drm_get_encoder_name(encoder
));
7641 if (old
->load_detect_temp
) {
7642 to_intel_connector(connector
)->new_encoder
= NULL
;
7643 intel_encoder
->new_crtc
= NULL
;
7644 intel_set_mode(crtc
, NULL
, 0, 0, NULL
);
7646 if (old
->release_fb
) {
7647 drm_framebuffer_unregister_private(old
->release_fb
);
7648 drm_framebuffer_unreference(old
->release_fb
);
7651 mutex_unlock(&crtc
->mutex
);
7655 /* Switch crtc and encoder back off if necessary */
7656 if (old
->dpms_mode
!= DRM_MODE_DPMS_ON
)
7657 connector
->funcs
->dpms(connector
, old
->dpms_mode
);
7659 mutex_unlock(&crtc
->mutex
);
7662 static int i9xx_pll_refclk(struct drm_device
*dev
,
7663 const struct intel_crtc_config
*pipe_config
)
7665 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7666 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
7668 if ((dpll
& PLL_REF_INPUT_MASK
) == PLLB_REF_INPUT_SPREADSPECTRUMIN
)
7669 return dev_priv
->vbt
.lvds_ssc_freq
* 1000;
7670 else if (HAS_PCH_SPLIT(dev
))
7672 else if (!IS_GEN2(dev
))
7678 /* Returns the clock of the currently programmed mode of the given pipe. */
7679 static void i9xx_crtc_clock_get(struct intel_crtc
*crtc
,
7680 struct intel_crtc_config
*pipe_config
)
7682 struct drm_device
*dev
= crtc
->base
.dev
;
7683 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7684 int pipe
= pipe_config
->cpu_transcoder
;
7685 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
7687 intel_clock_t clock
;
7688 int refclk
= i9xx_pll_refclk(dev
, pipe_config
);
7690 if ((dpll
& DISPLAY_RATE_SELECT_FPA1
) == 0)
7691 fp
= pipe_config
->dpll_hw_state
.fp0
;
7693 fp
= pipe_config
->dpll_hw_state
.fp1
;
7695 clock
.m1
= (fp
& FP_M1_DIV_MASK
) >> FP_M1_DIV_SHIFT
;
7696 if (IS_PINEVIEW(dev
)) {
7697 clock
.n
= ffs((fp
& FP_N_PINEVIEW_DIV_MASK
) >> FP_N_DIV_SHIFT
) - 1;
7698 clock
.m2
= (fp
& FP_M2_PINEVIEW_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
7700 clock
.n
= (fp
& FP_N_DIV_MASK
) >> FP_N_DIV_SHIFT
;
7701 clock
.m2
= (fp
& FP_M2_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
7704 if (!IS_GEN2(dev
)) {
7705 if (IS_PINEVIEW(dev
))
7706 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW
) >>
7707 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
);
7709 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK
) >>
7710 DPLL_FPA01_P1_POST_DIV_SHIFT
);
7712 switch (dpll
& DPLL_MODE_MASK
) {
7713 case DPLLB_MODE_DAC_SERIAL
:
7714 clock
.p2
= dpll
& DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
?
7717 case DPLLB_MODE_LVDS
:
7718 clock
.p2
= dpll
& DPLLB_LVDS_P2_CLOCK_DIV_7
?
7722 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
7723 "mode\n", (int)(dpll
& DPLL_MODE_MASK
));
7727 if (IS_PINEVIEW(dev
))
7728 pineview_clock(refclk
, &clock
);
7730 i9xx_clock(refclk
, &clock
);
7732 bool is_lvds
= (pipe
== 1) && (I915_READ(LVDS
) & LVDS_PORT_EN
);
7735 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS
) >>
7736 DPLL_FPA01_P1_POST_DIV_SHIFT
);
7739 if (dpll
& PLL_P1_DIVIDE_BY_TWO
)
7742 clock
.p1
= ((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830
) >>
7743 DPLL_FPA01_P1_POST_DIV_SHIFT
) + 2;
7745 if (dpll
& PLL_P2_DIVIDE_BY_4
)
7751 i9xx_clock(refclk
, &clock
);
7755 * This value includes pixel_multiplier. We will use
7756 * port_clock to compute adjusted_mode.crtc_clock in the
7757 * encoder's get_config() function.
7759 pipe_config
->port_clock
= clock
.dot
;
7762 int intel_dotclock_calculate(int link_freq
,
7763 const struct intel_link_m_n
*m_n
)
7766 * The calculation for the data clock is:
7767 * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp
7768 * But we want to avoid losing precison if possible, so:
7769 * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp))
7771 * and the link clock is simpler:
7772 * link_clock = (m * link_clock) / n
7778 return div_u64((u64
)m_n
->link_m
* link_freq
, m_n
->link_n
);
7781 static void ironlake_pch_clock_get(struct intel_crtc
*crtc
,
7782 struct intel_crtc_config
*pipe_config
)
7784 struct drm_device
*dev
= crtc
->base
.dev
;
7786 /* read out port_clock from the DPLL */
7787 i9xx_crtc_clock_get(crtc
, pipe_config
);
7790 * This value does not include pixel_multiplier.
7791 * We will check that port_clock and adjusted_mode.crtc_clock
7792 * agree once we know their relationship in the encoder's
7793 * get_config() function.
7795 pipe_config
->adjusted_mode
.crtc_clock
=
7796 intel_dotclock_calculate(intel_fdi_link_freq(dev
) * 10000,
7797 &pipe_config
->fdi_m_n
);
7800 /** Returns the currently programmed mode of the given pipe. */
7801 struct drm_display_mode
*intel_crtc_mode_get(struct drm_device
*dev
,
7802 struct drm_crtc
*crtc
)
7804 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7805 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7806 enum transcoder cpu_transcoder
= intel_crtc
->config
.cpu_transcoder
;
7807 struct drm_display_mode
*mode
;
7808 struct intel_crtc_config pipe_config
;
7809 int htot
= I915_READ(HTOTAL(cpu_transcoder
));
7810 int hsync
= I915_READ(HSYNC(cpu_transcoder
));
7811 int vtot
= I915_READ(VTOTAL(cpu_transcoder
));
7812 int vsync
= I915_READ(VSYNC(cpu_transcoder
));
7813 enum pipe pipe
= intel_crtc
->pipe
;
7815 mode
= kzalloc(sizeof(*mode
), GFP_KERNEL
);
7820 * Construct a pipe_config sufficient for getting the clock info
7821 * back out of crtc_clock_get.
7823 * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need
7824 * to use a real value here instead.
7826 pipe_config
.cpu_transcoder
= (enum transcoder
) pipe
;
7827 pipe_config
.pixel_multiplier
= 1;
7828 pipe_config
.dpll_hw_state
.dpll
= I915_READ(DPLL(pipe
));
7829 pipe_config
.dpll_hw_state
.fp0
= I915_READ(FP0(pipe
));
7830 pipe_config
.dpll_hw_state
.fp1
= I915_READ(FP1(pipe
));
7831 i9xx_crtc_clock_get(intel_crtc
, &pipe_config
);
7833 mode
->clock
= pipe_config
.port_clock
/ pipe_config
.pixel_multiplier
;
7834 mode
->hdisplay
= (htot
& 0xffff) + 1;
7835 mode
->htotal
= ((htot
& 0xffff0000) >> 16) + 1;
7836 mode
->hsync_start
= (hsync
& 0xffff) + 1;
7837 mode
->hsync_end
= ((hsync
& 0xffff0000) >> 16) + 1;
7838 mode
->vdisplay
= (vtot
& 0xffff) + 1;
7839 mode
->vtotal
= ((vtot
& 0xffff0000) >> 16) + 1;
7840 mode
->vsync_start
= (vsync
& 0xffff) + 1;
7841 mode
->vsync_end
= ((vsync
& 0xffff0000) >> 16) + 1;
7843 drm_mode_set_name(mode
);
7848 static void intel_increase_pllclock(struct drm_crtc
*crtc
)
7850 struct drm_device
*dev
= crtc
->dev
;
7851 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
7852 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7853 int pipe
= intel_crtc
->pipe
;
7854 int dpll_reg
= DPLL(pipe
);
7857 if (HAS_PCH_SPLIT(dev
))
7860 if (!dev_priv
->lvds_downclock_avail
)
7863 dpll
= I915_READ(dpll_reg
);
7864 if (!HAS_PIPE_CXSR(dev
) && (dpll
& DISPLAY_RATE_SELECT_FPA1
)) {
7865 DRM_DEBUG_DRIVER("upclocking LVDS\n");
7867 assert_panel_unlocked(dev_priv
, pipe
);
7869 dpll
&= ~DISPLAY_RATE_SELECT_FPA1
;
7870 I915_WRITE(dpll_reg
, dpll
);
7871 intel_wait_for_vblank(dev
, pipe
);
7873 dpll
= I915_READ(dpll_reg
);
7874 if (dpll
& DISPLAY_RATE_SELECT_FPA1
)
7875 DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
7879 static void intel_decrease_pllclock(struct drm_crtc
*crtc
)
7881 struct drm_device
*dev
= crtc
->dev
;
7882 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
7883 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7885 if (HAS_PCH_SPLIT(dev
))
7888 if (!dev_priv
->lvds_downclock_avail
)
7892 * Since this is called by a timer, we should never get here in
7895 if (!HAS_PIPE_CXSR(dev
) && intel_crtc
->lowfreq_avail
) {
7896 int pipe
= intel_crtc
->pipe
;
7897 int dpll_reg
= DPLL(pipe
);
7900 DRM_DEBUG_DRIVER("downclocking LVDS\n");
7902 assert_panel_unlocked(dev_priv
, pipe
);
7904 dpll
= I915_READ(dpll_reg
);
7905 dpll
|= DISPLAY_RATE_SELECT_FPA1
;
7906 I915_WRITE(dpll_reg
, dpll
);
7907 intel_wait_for_vblank(dev
, pipe
);
7908 dpll
= I915_READ(dpll_reg
);
7909 if (!(dpll
& DISPLAY_RATE_SELECT_FPA1
))
7910 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
7915 void intel_mark_busy(struct drm_device
*dev
)
7917 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7919 hsw_package_c8_gpu_busy(dev_priv
);
7920 i915_update_gfx_val(dev_priv
);
7923 void intel_mark_idle(struct drm_device
*dev
)
7925 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7926 struct drm_crtc
*crtc
;
7928 hsw_package_c8_gpu_idle(dev_priv
);
7930 if (!i915_powersave
)
7933 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
7937 intel_decrease_pllclock(crtc
);
7940 if (dev_priv
->info
->gen
>= 6)
7941 gen6_rps_idle(dev
->dev_private
);
7944 void intel_mark_fb_busy(struct drm_i915_gem_object
*obj
,
7945 struct intel_ring_buffer
*ring
)
7947 struct drm_device
*dev
= obj
->base
.dev
;
7948 struct drm_crtc
*crtc
;
7950 if (!i915_powersave
)
7953 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
7957 if (to_intel_framebuffer(crtc
->fb
)->obj
!= obj
)
7960 intel_increase_pllclock(crtc
);
7961 if (ring
&& intel_fbc_enabled(dev
))
7962 ring
->fbc_dirty
= true;
7966 static void intel_crtc_destroy(struct drm_crtc
*crtc
)
7968 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7969 struct drm_device
*dev
= crtc
->dev
;
7970 struct intel_unpin_work
*work
;
7971 unsigned long flags
;
7973 spin_lock_irqsave(&dev
->event_lock
, flags
);
7974 work
= intel_crtc
->unpin_work
;
7975 intel_crtc
->unpin_work
= NULL
;
7976 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
7979 cancel_work_sync(&work
->work
);
7983 intel_crtc_cursor_set(crtc
, NULL
, 0, 0, 0);
7985 drm_crtc_cleanup(crtc
);
7990 static void intel_unpin_work_fn(struct work_struct
*__work
)
7992 struct intel_unpin_work
*work
=
7993 container_of(__work
, struct intel_unpin_work
, work
);
7994 struct drm_device
*dev
= work
->crtc
->dev
;
7996 mutex_lock(&dev
->struct_mutex
);
7997 intel_unpin_fb_obj(work
->old_fb_obj
);
7998 drm_gem_object_unreference(&work
->pending_flip_obj
->base
);
7999 drm_gem_object_unreference(&work
->old_fb_obj
->base
);
8001 intel_update_fbc(dev
);
8002 mutex_unlock(&dev
->struct_mutex
);
8004 BUG_ON(atomic_read(&to_intel_crtc(work
->crtc
)->unpin_work_count
) == 0);
8005 atomic_dec(&to_intel_crtc(work
->crtc
)->unpin_work_count
);
8010 static void do_intel_finish_page_flip(struct drm_device
*dev
,
8011 struct drm_crtc
*crtc
)
8013 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
8014 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8015 struct intel_unpin_work
*work
;
8016 unsigned long flags
;
8018 /* Ignore early vblank irqs */
8019 if (intel_crtc
== NULL
)
8022 spin_lock_irqsave(&dev
->event_lock
, flags
);
8023 work
= intel_crtc
->unpin_work
;
8025 /* Ensure we don't miss a work->pending update ... */
8028 if (work
== NULL
|| atomic_read(&work
->pending
) < INTEL_FLIP_COMPLETE
) {
8029 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
8033 /* and that the unpin work is consistent wrt ->pending. */
8036 intel_crtc
->unpin_work
= NULL
;
8039 drm_send_vblank_event(dev
, intel_crtc
->pipe
, work
->event
);
8041 drm_vblank_put(dev
, intel_crtc
->pipe
);
8043 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
8045 wake_up_all(&dev_priv
->pending_flip_queue
);
8047 queue_work(dev_priv
->wq
, &work
->work
);
8049 trace_i915_flip_complete(intel_crtc
->plane
, work
->pending_flip_obj
);
8052 void intel_finish_page_flip(struct drm_device
*dev
, int pipe
)
8054 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
8055 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
8057 do_intel_finish_page_flip(dev
, crtc
);
8060 void intel_finish_page_flip_plane(struct drm_device
*dev
, int plane
)
8062 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
8063 struct drm_crtc
*crtc
= dev_priv
->plane_to_crtc_mapping
[plane
];
8065 do_intel_finish_page_flip(dev
, crtc
);
8068 void intel_prepare_page_flip(struct drm_device
*dev
, int plane
)
8070 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
8071 struct intel_crtc
*intel_crtc
=
8072 to_intel_crtc(dev_priv
->plane_to_crtc_mapping
[plane
]);
8073 unsigned long flags
;
8075 /* NB: An MMIO update of the plane base pointer will also
8076 * generate a page-flip completion irq, i.e. every modeset
8077 * is also accompanied by a spurious intel_prepare_page_flip().
8079 spin_lock_irqsave(&dev
->event_lock
, flags
);
8080 if (intel_crtc
->unpin_work
)
8081 atomic_inc_not_zero(&intel_crtc
->unpin_work
->pending
);
8082 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
8085 inline static void intel_mark_page_flip_active(struct intel_crtc
*intel_crtc
)
8087 /* Ensure that the work item is consistent when activating it ... */
8089 atomic_set(&intel_crtc
->unpin_work
->pending
, INTEL_FLIP_PENDING
);
8090 /* and that it is marked active as soon as the irq could fire. */
8094 static int intel_gen2_queue_flip(struct drm_device
*dev
,
8095 struct drm_crtc
*crtc
,
8096 struct drm_framebuffer
*fb
,
8097 struct drm_i915_gem_object
*obj
,
8100 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8101 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8103 struct intel_ring_buffer
*ring
= &dev_priv
->ring
[RCS
];
8106 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
8110 ret
= intel_ring_begin(ring
, 6);
8114 /* Can't queue multiple flips, so wait for the previous
8115 * one to finish before executing the next.
8117 if (intel_crtc
->plane
)
8118 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
8120 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
8121 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
8122 intel_ring_emit(ring
, MI_NOOP
);
8123 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
8124 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
8125 intel_ring_emit(ring
, fb
->pitches
[0]);
8126 intel_ring_emit(ring
, i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
);
8127 intel_ring_emit(ring
, 0); /* aux display base address, unused */
8129 intel_mark_page_flip_active(intel_crtc
);
8130 __intel_ring_advance(ring
);
8134 intel_unpin_fb_obj(obj
);
8139 static int intel_gen3_queue_flip(struct drm_device
*dev
,
8140 struct drm_crtc
*crtc
,
8141 struct drm_framebuffer
*fb
,
8142 struct drm_i915_gem_object
*obj
,
8145 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8146 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8148 struct intel_ring_buffer
*ring
= &dev_priv
->ring
[RCS
];
8151 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
8155 ret
= intel_ring_begin(ring
, 6);
8159 if (intel_crtc
->plane
)
8160 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
8162 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
8163 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
8164 intel_ring_emit(ring
, MI_NOOP
);
8165 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
|
8166 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
8167 intel_ring_emit(ring
, fb
->pitches
[0]);
8168 intel_ring_emit(ring
, i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
);
8169 intel_ring_emit(ring
, MI_NOOP
);
8171 intel_mark_page_flip_active(intel_crtc
);
8172 __intel_ring_advance(ring
);
8176 intel_unpin_fb_obj(obj
);
8181 static int intel_gen4_queue_flip(struct drm_device
*dev
,
8182 struct drm_crtc
*crtc
,
8183 struct drm_framebuffer
*fb
,
8184 struct drm_i915_gem_object
*obj
,
8187 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8188 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8189 uint32_t pf
, pipesrc
;
8190 struct intel_ring_buffer
*ring
= &dev_priv
->ring
[RCS
];
8193 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
8197 ret
= intel_ring_begin(ring
, 4);
8201 /* i965+ uses the linear or tiled offsets from the
8202 * Display Registers (which do not change across a page-flip)
8203 * so we need only reprogram the base address.
8205 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
8206 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
8207 intel_ring_emit(ring
, fb
->pitches
[0]);
8208 intel_ring_emit(ring
,
8209 (i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
) |
8212 /* XXX Enabling the panel-fitter across page-flip is so far
8213 * untested on non-native modes, so ignore it for now.
8214 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
8217 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
8218 intel_ring_emit(ring
, pf
| pipesrc
);
8220 intel_mark_page_flip_active(intel_crtc
);
8221 __intel_ring_advance(ring
);
8225 intel_unpin_fb_obj(obj
);
8230 static int intel_gen6_queue_flip(struct drm_device
*dev
,
8231 struct drm_crtc
*crtc
,
8232 struct drm_framebuffer
*fb
,
8233 struct drm_i915_gem_object
*obj
,
8236 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8237 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8238 struct intel_ring_buffer
*ring
= &dev_priv
->ring
[RCS
];
8239 uint32_t pf
, pipesrc
;
8242 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
8246 ret
= intel_ring_begin(ring
, 4);
8250 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
8251 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
8252 intel_ring_emit(ring
, fb
->pitches
[0] | obj
->tiling_mode
);
8253 intel_ring_emit(ring
, i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
);
8255 /* Contrary to the suggestions in the documentation,
8256 * "Enable Panel Fitter" does not seem to be required when page
8257 * flipping with a non-native mode, and worse causes a normal
8259 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
8262 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
8263 intel_ring_emit(ring
, pf
| pipesrc
);
8265 intel_mark_page_flip_active(intel_crtc
);
8266 __intel_ring_advance(ring
);
8270 intel_unpin_fb_obj(obj
);
8275 static int intel_gen7_queue_flip(struct drm_device
*dev
,
8276 struct drm_crtc
*crtc
,
8277 struct drm_framebuffer
*fb
,
8278 struct drm_i915_gem_object
*obj
,
8281 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8282 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8283 struct intel_ring_buffer
*ring
;
8284 uint32_t plane_bit
= 0;
8288 if (IS_VALLEYVIEW(dev
) || ring
== NULL
|| ring
->id
!= RCS
)
8289 ring
= &dev_priv
->ring
[BCS
];
8291 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
8295 switch(intel_crtc
->plane
) {
8297 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_A
;
8300 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_B
;
8303 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_C
;
8306 WARN_ONCE(1, "unknown plane in flip command\n");
8312 if (ring
->id
== RCS
)
8315 ret
= intel_ring_begin(ring
, len
);
8319 /* Unmask the flip-done completion message. Note that the bspec says that
8320 * we should do this for both the BCS and RCS, and that we must not unmask
8321 * more than one flip event at any time (or ensure that one flip message
8322 * can be sent by waiting for flip-done prior to queueing new flips).
8323 * Experimentation says that BCS works despite DERRMR masking all
8324 * flip-done completion events and that unmasking all planes at once
8325 * for the RCS also doesn't appear to drop events. Setting the DERRMR
8326 * to zero does lead to lockups within MI_DISPLAY_FLIP.
8328 if (ring
->id
== RCS
) {
8329 intel_ring_emit(ring
, MI_LOAD_REGISTER_IMM(1));
8330 intel_ring_emit(ring
, DERRMR
);
8331 intel_ring_emit(ring
, ~(DERRMR_PIPEA_PRI_FLIP_DONE
|
8332 DERRMR_PIPEB_PRI_FLIP_DONE
|
8333 DERRMR_PIPEC_PRI_FLIP_DONE
));
8334 intel_ring_emit(ring
, MI_STORE_REGISTER_MEM(1));
8335 intel_ring_emit(ring
, DERRMR
);
8336 intel_ring_emit(ring
, ring
->scratch
.gtt_offset
+ 256);
8339 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
| plane_bit
);
8340 intel_ring_emit(ring
, (fb
->pitches
[0] | obj
->tiling_mode
));
8341 intel_ring_emit(ring
, i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
);
8342 intel_ring_emit(ring
, (MI_NOOP
));
8344 intel_mark_page_flip_active(intel_crtc
);
8345 __intel_ring_advance(ring
);
8349 intel_unpin_fb_obj(obj
);
8354 static int intel_default_queue_flip(struct drm_device
*dev
,
8355 struct drm_crtc
*crtc
,
8356 struct drm_framebuffer
*fb
,
8357 struct drm_i915_gem_object
*obj
,
8363 static int intel_crtc_page_flip(struct drm_crtc
*crtc
,
8364 struct drm_framebuffer
*fb
,
8365 struct drm_pending_vblank_event
*event
,
8366 uint32_t page_flip_flags
)
8368 struct drm_device
*dev
= crtc
->dev
;
8369 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8370 struct drm_framebuffer
*old_fb
= crtc
->fb
;
8371 struct drm_i915_gem_object
*obj
= to_intel_framebuffer(fb
)->obj
;
8372 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8373 struct intel_unpin_work
*work
;
8374 unsigned long flags
;
8377 /* Can't change pixel format via MI display flips. */
8378 if (fb
->pixel_format
!= crtc
->fb
->pixel_format
)
8382 * TILEOFF/LINOFF registers can't be changed via MI display flips.
8383 * Note that pitch changes could also affect these register.
8385 if (INTEL_INFO(dev
)->gen
> 3 &&
8386 (fb
->offsets
[0] != crtc
->fb
->offsets
[0] ||
8387 fb
->pitches
[0] != crtc
->fb
->pitches
[0]))
8390 work
= kzalloc(sizeof(*work
), GFP_KERNEL
);
8394 work
->event
= event
;
8396 work
->old_fb_obj
= to_intel_framebuffer(old_fb
)->obj
;
8397 INIT_WORK(&work
->work
, intel_unpin_work_fn
);
8399 ret
= drm_vblank_get(dev
, intel_crtc
->pipe
);
8403 /* We borrow the event spin lock for protecting unpin_work */
8404 spin_lock_irqsave(&dev
->event_lock
, flags
);
8405 if (intel_crtc
->unpin_work
) {
8406 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
8408 drm_vblank_put(dev
, intel_crtc
->pipe
);
8410 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
8413 intel_crtc
->unpin_work
= work
;
8414 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
8416 if (atomic_read(&intel_crtc
->unpin_work_count
) >= 2)
8417 flush_workqueue(dev_priv
->wq
);
8419 ret
= i915_mutex_lock_interruptible(dev
);
8423 /* Reference the objects for the scheduled work. */
8424 drm_gem_object_reference(&work
->old_fb_obj
->base
);
8425 drm_gem_object_reference(&obj
->base
);
8429 work
->pending_flip_obj
= obj
;
8431 work
->enable_stall_check
= true;
8433 atomic_inc(&intel_crtc
->unpin_work_count
);
8434 intel_crtc
->reset_counter
= atomic_read(&dev_priv
->gpu_error
.reset_counter
);
8436 ret
= dev_priv
->display
.queue_flip(dev
, crtc
, fb
, obj
, page_flip_flags
);
8438 goto cleanup_pending
;
8440 intel_disable_fbc(dev
);
8441 intel_mark_fb_busy(obj
, NULL
);
8442 mutex_unlock(&dev
->struct_mutex
);
8444 trace_i915_flip_request(intel_crtc
->plane
, obj
);
8449 atomic_dec(&intel_crtc
->unpin_work_count
);
8451 drm_gem_object_unreference(&work
->old_fb_obj
->base
);
8452 drm_gem_object_unreference(&obj
->base
);
8453 mutex_unlock(&dev
->struct_mutex
);
8456 spin_lock_irqsave(&dev
->event_lock
, flags
);
8457 intel_crtc
->unpin_work
= NULL
;
8458 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
8460 drm_vblank_put(dev
, intel_crtc
->pipe
);
8467 static struct drm_crtc_helper_funcs intel_helper_funcs
= {
8468 .mode_set_base_atomic
= intel_pipe_set_base_atomic
,
8469 .load_lut
= intel_crtc_load_lut
,
8472 static bool intel_encoder_crtc_ok(struct drm_encoder
*encoder
,
8473 struct drm_crtc
*crtc
)
8475 struct drm_device
*dev
;
8476 struct drm_crtc
*tmp
;
8479 WARN(!crtc
, "checking null crtc?\n");
8483 list_for_each_entry(tmp
, &dev
->mode_config
.crtc_list
, head
) {
8489 if (encoder
->possible_crtcs
& crtc_mask
)
8495 * intel_modeset_update_staged_output_state
8497 * Updates the staged output configuration state, e.g. after we've read out the
8500 static void intel_modeset_update_staged_output_state(struct drm_device
*dev
)
8502 struct intel_encoder
*encoder
;
8503 struct intel_connector
*connector
;
8505 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
8507 connector
->new_encoder
=
8508 to_intel_encoder(connector
->base
.encoder
);
8511 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
8514 to_intel_crtc(encoder
->base
.crtc
);
8519 * intel_modeset_commit_output_state
8521 * This function copies the stage display pipe configuration to the real one.
8523 static void intel_modeset_commit_output_state(struct drm_device
*dev
)
8525 struct intel_encoder
*encoder
;
8526 struct intel_connector
*connector
;
8528 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
8530 connector
->base
.encoder
= &connector
->new_encoder
->base
;
8533 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
8535 encoder
->base
.crtc
= &encoder
->new_crtc
->base
;
8540 connected_sink_compute_bpp(struct intel_connector
* connector
,
8541 struct intel_crtc_config
*pipe_config
)
8543 int bpp
= pipe_config
->pipe_bpp
;
8545 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n",
8546 connector
->base
.base
.id
,
8547 drm_get_connector_name(&connector
->base
));
8549 /* Don't use an invalid EDID bpc value */
8550 if (connector
->base
.display_info
.bpc
&&
8551 connector
->base
.display_info
.bpc
* 3 < bpp
) {
8552 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
8553 bpp
, connector
->base
.display_info
.bpc
*3);
8554 pipe_config
->pipe_bpp
= connector
->base
.display_info
.bpc
*3;
8557 /* Clamp bpp to 8 on screens without EDID 1.4 */
8558 if (connector
->base
.display_info
.bpc
== 0 && bpp
> 24) {
8559 DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
8561 pipe_config
->pipe_bpp
= 24;
8566 compute_baseline_pipe_bpp(struct intel_crtc
*crtc
,
8567 struct drm_framebuffer
*fb
,
8568 struct intel_crtc_config
*pipe_config
)
8570 struct drm_device
*dev
= crtc
->base
.dev
;
8571 struct intel_connector
*connector
;
8574 switch (fb
->pixel_format
) {
8576 bpp
= 8*3; /* since we go through a colormap */
8578 case DRM_FORMAT_XRGB1555
:
8579 case DRM_FORMAT_ARGB1555
:
8580 /* checked in intel_framebuffer_init already */
8581 if (WARN_ON(INTEL_INFO(dev
)->gen
> 3))
8583 case DRM_FORMAT_RGB565
:
8584 bpp
= 6*3; /* min is 18bpp */
8586 case DRM_FORMAT_XBGR8888
:
8587 case DRM_FORMAT_ABGR8888
:
8588 /* checked in intel_framebuffer_init already */
8589 if (WARN_ON(INTEL_INFO(dev
)->gen
< 4))
8591 case DRM_FORMAT_XRGB8888
:
8592 case DRM_FORMAT_ARGB8888
:
8595 case DRM_FORMAT_XRGB2101010
:
8596 case DRM_FORMAT_ARGB2101010
:
8597 case DRM_FORMAT_XBGR2101010
:
8598 case DRM_FORMAT_ABGR2101010
:
8599 /* checked in intel_framebuffer_init already */
8600 if (WARN_ON(INTEL_INFO(dev
)->gen
< 4))
8604 /* TODO: gen4+ supports 16 bpc floating point, too. */
8606 DRM_DEBUG_KMS("unsupported depth\n");
8610 pipe_config
->pipe_bpp
= bpp
;
8612 /* Clamp display bpp to EDID value */
8613 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
8615 if (!connector
->new_encoder
||
8616 connector
->new_encoder
->new_crtc
!= crtc
)
8619 connected_sink_compute_bpp(connector
, pipe_config
);
8625 static void intel_dump_crtc_timings(const struct drm_display_mode
*mode
)
8627 DRM_DEBUG_KMS("crtc timings: %d %d %d %d %d %d %d %d %d, "
8628 "type: 0x%x flags: 0x%x\n",
8630 mode
->crtc_hdisplay
, mode
->crtc_hsync_start
,
8631 mode
->crtc_hsync_end
, mode
->crtc_htotal
,
8632 mode
->crtc_vdisplay
, mode
->crtc_vsync_start
,
8633 mode
->crtc_vsync_end
, mode
->crtc_vtotal
, mode
->type
, mode
->flags
);
8636 static void intel_dump_pipe_config(struct intel_crtc
*crtc
,
8637 struct intel_crtc_config
*pipe_config
,
8638 const char *context
)
8640 DRM_DEBUG_KMS("[CRTC:%d]%s config for pipe %c\n", crtc
->base
.base
.id
,
8641 context
, pipe_name(crtc
->pipe
));
8643 DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config
->cpu_transcoder
));
8644 DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n",
8645 pipe_config
->pipe_bpp
, pipe_config
->dither
);
8646 DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
8647 pipe_config
->has_pch_encoder
,
8648 pipe_config
->fdi_lanes
,
8649 pipe_config
->fdi_m_n
.gmch_m
, pipe_config
->fdi_m_n
.gmch_n
,
8650 pipe_config
->fdi_m_n
.link_m
, pipe_config
->fdi_m_n
.link_n
,
8651 pipe_config
->fdi_m_n
.tu
);
8652 DRM_DEBUG_KMS("dp: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
8653 pipe_config
->has_dp_encoder
,
8654 pipe_config
->dp_m_n
.gmch_m
, pipe_config
->dp_m_n
.gmch_n
,
8655 pipe_config
->dp_m_n
.link_m
, pipe_config
->dp_m_n
.link_n
,
8656 pipe_config
->dp_m_n
.tu
);
8657 DRM_DEBUG_KMS("requested mode:\n");
8658 drm_mode_debug_printmodeline(&pipe_config
->requested_mode
);
8659 DRM_DEBUG_KMS("adjusted mode:\n");
8660 drm_mode_debug_printmodeline(&pipe_config
->adjusted_mode
);
8661 intel_dump_crtc_timings(&pipe_config
->adjusted_mode
);
8662 DRM_DEBUG_KMS("port clock: %d\n", pipe_config
->port_clock
);
8663 DRM_DEBUG_KMS("pipe src size: %dx%d\n",
8664 pipe_config
->pipe_src_w
, pipe_config
->pipe_src_h
);
8665 DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n",
8666 pipe_config
->gmch_pfit
.control
,
8667 pipe_config
->gmch_pfit
.pgm_ratios
,
8668 pipe_config
->gmch_pfit
.lvds_border_bits
);
8669 DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n",
8670 pipe_config
->pch_pfit
.pos
,
8671 pipe_config
->pch_pfit
.size
,
8672 pipe_config
->pch_pfit
.enabled
? "enabled" : "disabled");
8673 DRM_DEBUG_KMS("ips: %i\n", pipe_config
->ips_enabled
);
8674 DRM_DEBUG_KMS("double wide: %i\n", pipe_config
->double_wide
);
8677 static bool check_encoder_cloning(struct drm_crtc
*crtc
)
8679 int num_encoders
= 0;
8680 bool uncloneable_encoders
= false;
8681 struct intel_encoder
*encoder
;
8683 list_for_each_entry(encoder
, &crtc
->dev
->mode_config
.encoder_list
,
8685 if (&encoder
->new_crtc
->base
!= crtc
)
8689 if (!encoder
->cloneable
)
8690 uncloneable_encoders
= true;
8693 return !(num_encoders
> 1 && uncloneable_encoders
);
8696 static struct intel_crtc_config
*
8697 intel_modeset_pipe_config(struct drm_crtc
*crtc
,
8698 struct drm_framebuffer
*fb
,
8699 struct drm_display_mode
*mode
)
8701 struct drm_device
*dev
= crtc
->dev
;
8702 struct intel_encoder
*encoder
;
8703 struct intel_crtc_config
*pipe_config
;
8704 int plane_bpp
, ret
= -EINVAL
;
8707 if (!check_encoder_cloning(crtc
)) {
8708 DRM_DEBUG_KMS("rejecting invalid cloning configuration\n");
8709 return ERR_PTR(-EINVAL
);
8712 pipe_config
= kzalloc(sizeof(*pipe_config
), GFP_KERNEL
);
8714 return ERR_PTR(-ENOMEM
);
8716 drm_mode_copy(&pipe_config
->adjusted_mode
, mode
);
8717 drm_mode_copy(&pipe_config
->requested_mode
, mode
);
8719 pipe_config
->cpu_transcoder
=
8720 (enum transcoder
) to_intel_crtc(crtc
)->pipe
;
8721 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
8724 * Sanitize sync polarity flags based on requested ones. If neither
8725 * positive or negative polarity is requested, treat this as meaning
8726 * negative polarity.
8728 if (!(pipe_config
->adjusted_mode
.flags
&
8729 (DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NHSYNC
)))
8730 pipe_config
->adjusted_mode
.flags
|= DRM_MODE_FLAG_NHSYNC
;
8732 if (!(pipe_config
->adjusted_mode
.flags
&
8733 (DRM_MODE_FLAG_PVSYNC
| DRM_MODE_FLAG_NVSYNC
)))
8734 pipe_config
->adjusted_mode
.flags
|= DRM_MODE_FLAG_NVSYNC
;
8736 /* Compute a starting value for pipe_config->pipe_bpp taking the source
8737 * plane pixel format and any sink constraints into account. Returns the
8738 * source plane bpp so that dithering can be selected on mismatches
8739 * after encoders and crtc also have had their say. */
8740 plane_bpp
= compute_baseline_pipe_bpp(to_intel_crtc(crtc
),
8746 * Determine the real pipe dimensions. Note that stereo modes can
8747 * increase the actual pipe size due to the frame doubling and
8748 * insertion of additional space for blanks between the frame. This
8749 * is stored in the crtc timings. We use the requested mode to do this
8750 * computation to clearly distinguish it from the adjusted mode, which
8751 * can be changed by the connectors in the below retry loop.
8753 drm_mode_set_crtcinfo(&pipe_config
->requested_mode
, CRTC_STEREO_DOUBLE
);
8754 pipe_config
->pipe_src_w
= pipe_config
->requested_mode
.crtc_hdisplay
;
8755 pipe_config
->pipe_src_h
= pipe_config
->requested_mode
.crtc_vdisplay
;
8758 /* Ensure the port clock defaults are reset when retrying. */
8759 pipe_config
->port_clock
= 0;
8760 pipe_config
->pixel_multiplier
= 1;
8762 /* Fill in default crtc timings, allow encoders to overwrite them. */
8763 drm_mode_set_crtcinfo(&pipe_config
->adjusted_mode
, CRTC_STEREO_DOUBLE
);
8765 /* Pass our mode to the connectors and the CRTC to give them a chance to
8766 * adjust it according to limitations or connector properties, and also
8767 * a chance to reject the mode entirely.
8769 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
8772 if (&encoder
->new_crtc
->base
!= crtc
)
8775 if (!(encoder
->compute_config(encoder
, pipe_config
))) {
8776 DRM_DEBUG_KMS("Encoder config failure\n");
8781 /* Set default port clock if not overwritten by the encoder. Needs to be
8782 * done afterwards in case the encoder adjusts the mode. */
8783 if (!pipe_config
->port_clock
)
8784 pipe_config
->port_clock
= pipe_config
->adjusted_mode
.crtc_clock
8785 * pipe_config
->pixel_multiplier
;
8787 ret
= intel_crtc_compute_config(to_intel_crtc(crtc
), pipe_config
);
8789 DRM_DEBUG_KMS("CRTC fixup failed\n");
8794 if (WARN(!retry
, "loop in pipe configuration computation\n")) {
8799 DRM_DEBUG_KMS("CRTC bw constrained, retrying\n");
8804 pipe_config
->dither
= pipe_config
->pipe_bpp
!= plane_bpp
;
8805 DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n",
8806 plane_bpp
, pipe_config
->pipe_bpp
, pipe_config
->dither
);
8811 return ERR_PTR(ret
);
8814 /* Computes which crtcs are affected and sets the relevant bits in the mask. For
8815 * simplicity we use the crtc's pipe number (because it's easier to obtain). */
8817 intel_modeset_affected_pipes(struct drm_crtc
*crtc
, unsigned *modeset_pipes
,
8818 unsigned *prepare_pipes
, unsigned *disable_pipes
)
8820 struct intel_crtc
*intel_crtc
;
8821 struct drm_device
*dev
= crtc
->dev
;
8822 struct intel_encoder
*encoder
;
8823 struct intel_connector
*connector
;
8824 struct drm_crtc
*tmp_crtc
;
8826 *disable_pipes
= *modeset_pipes
= *prepare_pipes
= 0;
8828 /* Check which crtcs have changed outputs connected to them, these need
8829 * to be part of the prepare_pipes mask. We don't (yet) support global
8830 * modeset across multiple crtcs, so modeset_pipes will only have one
8831 * bit set at most. */
8832 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
8834 if (connector
->base
.encoder
== &connector
->new_encoder
->base
)
8837 if (connector
->base
.encoder
) {
8838 tmp_crtc
= connector
->base
.encoder
->crtc
;
8840 *prepare_pipes
|= 1 << to_intel_crtc(tmp_crtc
)->pipe
;
8843 if (connector
->new_encoder
)
8845 1 << connector
->new_encoder
->new_crtc
->pipe
;
8848 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
8850 if (encoder
->base
.crtc
== &encoder
->new_crtc
->base
)
8853 if (encoder
->base
.crtc
) {
8854 tmp_crtc
= encoder
->base
.crtc
;
8856 *prepare_pipes
|= 1 << to_intel_crtc(tmp_crtc
)->pipe
;
8859 if (encoder
->new_crtc
)
8860 *prepare_pipes
|= 1 << encoder
->new_crtc
->pipe
;
8863 /* Check for any pipes that will be fully disabled ... */
8864 list_for_each_entry(intel_crtc
, &dev
->mode_config
.crtc_list
,
8868 /* Don't try to disable disabled crtcs. */
8869 if (!intel_crtc
->base
.enabled
)
8872 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
8874 if (encoder
->new_crtc
== intel_crtc
)
8879 *disable_pipes
|= 1 << intel_crtc
->pipe
;
8883 /* set_mode is also used to update properties on life display pipes. */
8884 intel_crtc
= to_intel_crtc(crtc
);
8886 *prepare_pipes
|= 1 << intel_crtc
->pipe
;
8889 * For simplicity do a full modeset on any pipe where the output routing
8890 * changed. We could be more clever, but that would require us to be
8891 * more careful with calling the relevant encoder->mode_set functions.
8894 *modeset_pipes
= *prepare_pipes
;
8896 /* ... and mask these out. */
8897 *modeset_pipes
&= ~(*disable_pipes
);
8898 *prepare_pipes
&= ~(*disable_pipes
);
8901 * HACK: We don't (yet) fully support global modesets. intel_set_config
8902 * obies this rule, but the modeset restore mode of
8903 * intel_modeset_setup_hw_state does not.
8905 *modeset_pipes
&= 1 << intel_crtc
->pipe
;
8906 *prepare_pipes
&= 1 << intel_crtc
->pipe
;
8908 DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
8909 *modeset_pipes
, *prepare_pipes
, *disable_pipes
);
8912 static bool intel_crtc_in_use(struct drm_crtc
*crtc
)
8914 struct drm_encoder
*encoder
;
8915 struct drm_device
*dev
= crtc
->dev
;
8917 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
)
8918 if (encoder
->crtc
== crtc
)
8925 intel_modeset_update_state(struct drm_device
*dev
, unsigned prepare_pipes
)
8927 struct intel_encoder
*intel_encoder
;
8928 struct intel_crtc
*intel_crtc
;
8929 struct drm_connector
*connector
;
8931 list_for_each_entry(intel_encoder
, &dev
->mode_config
.encoder_list
,
8933 if (!intel_encoder
->base
.crtc
)
8936 intel_crtc
= to_intel_crtc(intel_encoder
->base
.crtc
);
8938 if (prepare_pipes
& (1 << intel_crtc
->pipe
))
8939 intel_encoder
->connectors_active
= false;
8942 intel_modeset_commit_output_state(dev
);
8944 /* Update computed state. */
8945 list_for_each_entry(intel_crtc
, &dev
->mode_config
.crtc_list
,
8947 intel_crtc
->base
.enabled
= intel_crtc_in_use(&intel_crtc
->base
);
8950 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
8951 if (!connector
->encoder
|| !connector
->encoder
->crtc
)
8954 intel_crtc
= to_intel_crtc(connector
->encoder
->crtc
);
8956 if (prepare_pipes
& (1 << intel_crtc
->pipe
)) {
8957 struct drm_property
*dpms_property
=
8958 dev
->mode_config
.dpms_property
;
8960 connector
->dpms
= DRM_MODE_DPMS_ON
;
8961 drm_object_property_set_value(&connector
->base
,
8965 intel_encoder
= to_intel_encoder(connector
->encoder
);
8966 intel_encoder
->connectors_active
= true;
8972 static bool intel_fuzzy_clock_check(int clock1
, int clock2
)
8976 if (clock1
== clock2
)
8979 if (!clock1
|| !clock2
)
8982 diff
= abs(clock1
- clock2
);
8984 if (((((diff
+ clock1
+ clock2
) * 100)) / (clock1
+ clock2
)) < 105)
8990 #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
8991 list_for_each_entry((intel_crtc), \
8992 &(dev)->mode_config.crtc_list, \
8994 if (mask & (1 <<(intel_crtc)->pipe))
8997 intel_pipe_config_compare(struct drm_device
*dev
,
8998 struct intel_crtc_config
*current_config
,
8999 struct intel_crtc_config
*pipe_config
)
9001 #define PIPE_CONF_CHECK_X(name) \
9002 if (current_config->name != pipe_config->name) { \
9003 DRM_ERROR("mismatch in " #name " " \
9004 "(expected 0x%08x, found 0x%08x)\n", \
9005 current_config->name, \
9006 pipe_config->name); \
9010 #define PIPE_CONF_CHECK_I(name) \
9011 if (current_config->name != pipe_config->name) { \
9012 DRM_ERROR("mismatch in " #name " " \
9013 "(expected %i, found %i)\n", \
9014 current_config->name, \
9015 pipe_config->name); \
9019 #define PIPE_CONF_CHECK_FLAGS(name, mask) \
9020 if ((current_config->name ^ pipe_config->name) & (mask)) { \
9021 DRM_ERROR("mismatch in " #name "(" #mask ") " \
9022 "(expected %i, found %i)\n", \
9023 current_config->name & (mask), \
9024 pipe_config->name & (mask)); \
9028 #define PIPE_CONF_CHECK_CLOCK_FUZZY(name) \
9029 if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \
9030 DRM_ERROR("mismatch in " #name " " \
9031 "(expected %i, found %i)\n", \
9032 current_config->name, \
9033 pipe_config->name); \
9037 #define PIPE_CONF_QUIRK(quirk) \
9038 ((current_config->quirks | pipe_config->quirks) & (quirk))
9040 PIPE_CONF_CHECK_I(cpu_transcoder
);
9042 PIPE_CONF_CHECK_I(has_pch_encoder
);
9043 PIPE_CONF_CHECK_I(fdi_lanes
);
9044 PIPE_CONF_CHECK_I(fdi_m_n
.gmch_m
);
9045 PIPE_CONF_CHECK_I(fdi_m_n
.gmch_n
);
9046 PIPE_CONF_CHECK_I(fdi_m_n
.link_m
);
9047 PIPE_CONF_CHECK_I(fdi_m_n
.link_n
);
9048 PIPE_CONF_CHECK_I(fdi_m_n
.tu
);
9050 PIPE_CONF_CHECK_I(has_dp_encoder
);
9051 PIPE_CONF_CHECK_I(dp_m_n
.gmch_m
);
9052 PIPE_CONF_CHECK_I(dp_m_n
.gmch_n
);
9053 PIPE_CONF_CHECK_I(dp_m_n
.link_m
);
9054 PIPE_CONF_CHECK_I(dp_m_n
.link_n
);
9055 PIPE_CONF_CHECK_I(dp_m_n
.tu
);
9057 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_hdisplay
);
9058 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_htotal
);
9059 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_hblank_start
);
9060 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_hblank_end
);
9061 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_hsync_start
);
9062 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_hsync_end
);
9064 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vdisplay
);
9065 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vtotal
);
9066 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vblank_start
);
9067 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vblank_end
);
9068 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vsync_start
);
9069 PIPE_CONF_CHECK_I(adjusted_mode
.crtc_vsync_end
);
9071 PIPE_CONF_CHECK_I(pixel_multiplier
);
9073 PIPE_CONF_CHECK_FLAGS(adjusted_mode
.flags
,
9074 DRM_MODE_FLAG_INTERLACE
);
9076 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS
)) {
9077 PIPE_CONF_CHECK_FLAGS(adjusted_mode
.flags
,
9078 DRM_MODE_FLAG_PHSYNC
);
9079 PIPE_CONF_CHECK_FLAGS(adjusted_mode
.flags
,
9080 DRM_MODE_FLAG_NHSYNC
);
9081 PIPE_CONF_CHECK_FLAGS(adjusted_mode
.flags
,
9082 DRM_MODE_FLAG_PVSYNC
);
9083 PIPE_CONF_CHECK_FLAGS(adjusted_mode
.flags
,
9084 DRM_MODE_FLAG_NVSYNC
);
9087 PIPE_CONF_CHECK_I(pipe_src_w
);
9088 PIPE_CONF_CHECK_I(pipe_src_h
);
9090 PIPE_CONF_CHECK_I(gmch_pfit
.control
);
9091 /* pfit ratios are autocomputed by the hw on gen4+ */
9092 if (INTEL_INFO(dev
)->gen
< 4)
9093 PIPE_CONF_CHECK_I(gmch_pfit
.pgm_ratios
);
9094 PIPE_CONF_CHECK_I(gmch_pfit
.lvds_border_bits
);
9095 PIPE_CONF_CHECK_I(pch_pfit
.enabled
);
9096 if (current_config
->pch_pfit
.enabled
) {
9097 PIPE_CONF_CHECK_I(pch_pfit
.pos
);
9098 PIPE_CONF_CHECK_I(pch_pfit
.size
);
9101 PIPE_CONF_CHECK_I(ips_enabled
);
9103 PIPE_CONF_CHECK_I(double_wide
);
9105 PIPE_CONF_CHECK_I(shared_dpll
);
9106 PIPE_CONF_CHECK_X(dpll_hw_state
.dpll
);
9107 PIPE_CONF_CHECK_X(dpll_hw_state
.dpll_md
);
9108 PIPE_CONF_CHECK_X(dpll_hw_state
.fp0
);
9109 PIPE_CONF_CHECK_X(dpll_hw_state
.fp1
);
9111 if (IS_G4X(dev
) || INTEL_INFO(dev
)->gen
>= 5)
9112 PIPE_CONF_CHECK_I(pipe_bpp
);
9114 if (!IS_HASWELL(dev
)) {
9115 PIPE_CONF_CHECK_CLOCK_FUZZY(adjusted_mode
.crtc_clock
);
9116 PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock
);
9119 #undef PIPE_CONF_CHECK_X
9120 #undef PIPE_CONF_CHECK_I
9121 #undef PIPE_CONF_CHECK_FLAGS
9122 #undef PIPE_CONF_CHECK_CLOCK_FUZZY
9123 #undef PIPE_CONF_QUIRK
9129 check_connector_state(struct drm_device
*dev
)
9131 struct intel_connector
*connector
;
9133 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
9135 /* This also checks the encoder/connector hw state with the
9136 * ->get_hw_state callbacks. */
9137 intel_connector_check_state(connector
);
9139 WARN(&connector
->new_encoder
->base
!= connector
->base
.encoder
,
9140 "connector's staged encoder doesn't match current encoder\n");
9145 check_encoder_state(struct drm_device
*dev
)
9147 struct intel_encoder
*encoder
;
9148 struct intel_connector
*connector
;
9150 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
9152 bool enabled
= false;
9153 bool active
= false;
9154 enum pipe pipe
, tracked_pipe
;
9156 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
9157 encoder
->base
.base
.id
,
9158 drm_get_encoder_name(&encoder
->base
));
9160 WARN(&encoder
->new_crtc
->base
!= encoder
->base
.crtc
,
9161 "encoder's stage crtc doesn't match current crtc\n");
9162 WARN(encoder
->connectors_active
&& !encoder
->base
.crtc
,
9163 "encoder's active_connectors set, but no crtc\n");
9165 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
9167 if (connector
->base
.encoder
!= &encoder
->base
)
9170 if (connector
->base
.dpms
!= DRM_MODE_DPMS_OFF
)
9173 WARN(!!encoder
->base
.crtc
!= enabled
,
9174 "encoder's enabled state mismatch "
9175 "(expected %i, found %i)\n",
9176 !!encoder
->base
.crtc
, enabled
);
9177 WARN(active
&& !encoder
->base
.crtc
,
9178 "active encoder with no crtc\n");
9180 WARN(encoder
->connectors_active
!= active
,
9181 "encoder's computed active state doesn't match tracked active state "
9182 "(expected %i, found %i)\n", active
, encoder
->connectors_active
);
9184 active
= encoder
->get_hw_state(encoder
, &pipe
);
9185 WARN(active
!= encoder
->connectors_active
,
9186 "encoder's hw state doesn't match sw tracking "
9187 "(expected %i, found %i)\n",
9188 encoder
->connectors_active
, active
);
9190 if (!encoder
->base
.crtc
)
9193 tracked_pipe
= to_intel_crtc(encoder
->base
.crtc
)->pipe
;
9194 WARN(active
&& pipe
!= tracked_pipe
,
9195 "active encoder's pipe doesn't match"
9196 "(expected %i, found %i)\n",
9197 tracked_pipe
, pipe
);
9203 check_crtc_state(struct drm_device
*dev
)
9205 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
9206 struct intel_crtc
*crtc
;
9207 struct intel_encoder
*encoder
;
9208 struct intel_crtc_config pipe_config
;
9210 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
,
9212 bool enabled
= false;
9213 bool active
= false;
9215 memset(&pipe_config
, 0, sizeof(pipe_config
));
9217 DRM_DEBUG_KMS("[CRTC:%d]\n",
9218 crtc
->base
.base
.id
);
9220 WARN(crtc
->active
&& !crtc
->base
.enabled
,
9221 "active crtc, but not enabled in sw tracking\n");
9223 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
9225 if (encoder
->base
.crtc
!= &crtc
->base
)
9228 if (encoder
->connectors_active
)
9232 WARN(active
!= crtc
->active
,
9233 "crtc's computed active state doesn't match tracked active state "
9234 "(expected %i, found %i)\n", active
, crtc
->active
);
9235 WARN(enabled
!= crtc
->base
.enabled
,
9236 "crtc's computed enabled state doesn't match tracked enabled state "
9237 "(expected %i, found %i)\n", enabled
, crtc
->base
.enabled
);
9239 active
= dev_priv
->display
.get_pipe_config(crtc
,
9242 /* hw state is inconsistent with the pipe A quirk */
9243 if (crtc
->pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
)
9244 active
= crtc
->active
;
9246 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
9249 if (encoder
->base
.crtc
!= &crtc
->base
)
9251 if (encoder
->get_config
&&
9252 encoder
->get_hw_state(encoder
, &pipe
))
9253 encoder
->get_config(encoder
, &pipe_config
);
9256 WARN(crtc
->active
!= active
,
9257 "crtc active state doesn't match with hw state "
9258 "(expected %i, found %i)\n", crtc
->active
, active
);
9261 !intel_pipe_config_compare(dev
, &crtc
->config
, &pipe_config
)) {
9262 WARN(1, "pipe state doesn't match!\n");
9263 intel_dump_pipe_config(crtc
, &pipe_config
,
9265 intel_dump_pipe_config(crtc
, &crtc
->config
,
9272 check_shared_dpll_state(struct drm_device
*dev
)
9274 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
9275 struct intel_crtc
*crtc
;
9276 struct intel_dpll_hw_state dpll_hw_state
;
9279 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
9280 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
9281 int enabled_crtcs
= 0, active_crtcs
= 0;
9284 memset(&dpll_hw_state
, 0, sizeof(dpll_hw_state
));
9286 DRM_DEBUG_KMS("%s\n", pll
->name
);
9288 active
= pll
->get_hw_state(dev_priv
, pll
, &dpll_hw_state
);
9290 WARN(pll
->active
> pll
->refcount
,
9291 "more active pll users than references: %i vs %i\n",
9292 pll
->active
, pll
->refcount
);
9293 WARN(pll
->active
&& !pll
->on
,
9294 "pll in active use but not on in sw tracking\n");
9295 WARN(pll
->on
&& !pll
->active
,
9296 "pll in on but not on in use in sw tracking\n");
9297 WARN(pll
->on
!= active
,
9298 "pll on state mismatch (expected %i, found %i)\n",
9301 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
,
9303 if (crtc
->base
.enabled
&& intel_crtc_to_shared_dpll(crtc
) == pll
)
9305 if (crtc
->active
&& intel_crtc_to_shared_dpll(crtc
) == pll
)
9308 WARN(pll
->active
!= active_crtcs
,
9309 "pll active crtcs mismatch (expected %i, found %i)\n",
9310 pll
->active
, active_crtcs
);
9311 WARN(pll
->refcount
!= enabled_crtcs
,
9312 "pll enabled crtcs mismatch (expected %i, found %i)\n",
9313 pll
->refcount
, enabled_crtcs
);
9315 WARN(pll
->on
&& memcmp(&pll
->hw_state
, &dpll_hw_state
,
9316 sizeof(dpll_hw_state
)),
9317 "pll hw state mismatch\n");
9322 intel_modeset_check_state(struct drm_device
*dev
)
9324 check_connector_state(dev
);
9325 check_encoder_state(dev
);
9326 check_crtc_state(dev
);
9327 check_shared_dpll_state(dev
);
9330 void ironlake_check_encoder_dotclock(const struct intel_crtc_config
*pipe_config
,
9334 * FDI already provided one idea for the dotclock.
9335 * Yell if the encoder disagrees.
9337 WARN(!intel_fuzzy_clock_check(pipe_config
->adjusted_mode
.crtc_clock
, dotclock
),
9338 "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n",
9339 pipe_config
->adjusted_mode
.crtc_clock
, dotclock
);
9342 static int __intel_set_mode(struct drm_crtc
*crtc
,
9343 struct drm_display_mode
*mode
,
9344 int x
, int y
, struct drm_framebuffer
*fb
)
9346 struct drm_device
*dev
= crtc
->dev
;
9347 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
9348 struct drm_display_mode
*saved_mode
, *saved_hwmode
;
9349 struct intel_crtc_config
*pipe_config
= NULL
;
9350 struct intel_crtc
*intel_crtc
;
9351 unsigned disable_pipes
, prepare_pipes
, modeset_pipes
;
9354 saved_mode
= kcalloc(2, sizeof(*saved_mode
), GFP_KERNEL
);
9357 saved_hwmode
= saved_mode
+ 1;
9359 intel_modeset_affected_pipes(crtc
, &modeset_pipes
,
9360 &prepare_pipes
, &disable_pipes
);
9362 *saved_hwmode
= crtc
->hwmode
;
9363 *saved_mode
= crtc
->mode
;
9365 /* Hack: Because we don't (yet) support global modeset on multiple
9366 * crtcs, we don't keep track of the new mode for more than one crtc.
9367 * Hence simply check whether any bit is set in modeset_pipes in all the
9368 * pieces of code that are not yet converted to deal with mutliple crtcs
9369 * changing their mode at the same time. */
9370 if (modeset_pipes
) {
9371 pipe_config
= intel_modeset_pipe_config(crtc
, fb
, mode
);
9372 if (IS_ERR(pipe_config
)) {
9373 ret
= PTR_ERR(pipe_config
);
9378 intel_dump_pipe_config(to_intel_crtc(crtc
), pipe_config
,
9382 for_each_intel_crtc_masked(dev
, disable_pipes
, intel_crtc
)
9383 intel_crtc_disable(&intel_crtc
->base
);
9385 for_each_intel_crtc_masked(dev
, prepare_pipes
, intel_crtc
) {
9386 if (intel_crtc
->base
.enabled
)
9387 dev_priv
->display
.crtc_disable(&intel_crtc
->base
);
9390 /* crtc->mode is already used by the ->mode_set callbacks, hence we need
9391 * to set it here already despite that we pass it down the callchain.
9393 if (modeset_pipes
) {
9395 /* mode_set/enable/disable functions rely on a correct pipe
9397 to_intel_crtc(crtc
)->config
= *pipe_config
;
9400 /* Only after disabling all output pipelines that will be changed can we
9401 * update the the output configuration. */
9402 intel_modeset_update_state(dev
, prepare_pipes
);
9404 if (dev_priv
->display
.modeset_global_resources
)
9405 dev_priv
->display
.modeset_global_resources(dev
);
9407 /* Set up the DPLL and any encoders state that needs to adjust or depend
9410 for_each_intel_crtc_masked(dev
, modeset_pipes
, intel_crtc
) {
9411 ret
= intel_crtc_mode_set(&intel_crtc
->base
,
9417 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
9418 for_each_intel_crtc_masked(dev
, prepare_pipes
, intel_crtc
)
9419 dev_priv
->display
.crtc_enable(&intel_crtc
->base
);
9421 if (modeset_pipes
) {
9422 /* Store real post-adjustment hardware mode. */
9423 crtc
->hwmode
= pipe_config
->adjusted_mode
;
9425 /* Calculate and store various constants which
9426 * are later needed by vblank and swap-completion
9427 * timestamping. They are derived from true hwmode.
9429 drm_calc_timestamping_constants(crtc
);
9432 /* FIXME: add subpixel order */
9434 if (ret
&& crtc
->enabled
) {
9435 crtc
->hwmode
= *saved_hwmode
;
9436 crtc
->mode
= *saved_mode
;
9445 static int intel_set_mode(struct drm_crtc
*crtc
,
9446 struct drm_display_mode
*mode
,
9447 int x
, int y
, struct drm_framebuffer
*fb
)
9451 ret
= __intel_set_mode(crtc
, mode
, x
, y
, fb
);
9454 intel_modeset_check_state(crtc
->dev
);
9459 void intel_crtc_restore_mode(struct drm_crtc
*crtc
)
9461 intel_set_mode(crtc
, &crtc
->mode
, crtc
->x
, crtc
->y
, crtc
->fb
);
9464 #undef for_each_intel_crtc_masked
9466 static void intel_set_config_free(struct intel_set_config
*config
)
9471 kfree(config
->save_connector_encoders
);
9472 kfree(config
->save_encoder_crtcs
);
9476 static int intel_set_config_save_state(struct drm_device
*dev
,
9477 struct intel_set_config
*config
)
9479 struct drm_encoder
*encoder
;
9480 struct drm_connector
*connector
;
9483 config
->save_encoder_crtcs
=
9484 kcalloc(dev
->mode_config
.num_encoder
,
9485 sizeof(struct drm_crtc
*), GFP_KERNEL
);
9486 if (!config
->save_encoder_crtcs
)
9489 config
->save_connector_encoders
=
9490 kcalloc(dev
->mode_config
.num_connector
,
9491 sizeof(struct drm_encoder
*), GFP_KERNEL
);
9492 if (!config
->save_connector_encoders
)
9495 /* Copy data. Note that driver private data is not affected.
9496 * Should anything bad happen only the expected state is
9497 * restored, not the drivers personal bookkeeping.
9500 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
) {
9501 config
->save_encoder_crtcs
[count
++] = encoder
->crtc
;
9505 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
9506 config
->save_connector_encoders
[count
++] = connector
->encoder
;
9512 static void intel_set_config_restore_state(struct drm_device
*dev
,
9513 struct intel_set_config
*config
)
9515 struct intel_encoder
*encoder
;
9516 struct intel_connector
*connector
;
9520 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, base
.head
) {
9522 to_intel_crtc(config
->save_encoder_crtcs
[count
++]);
9526 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, base
.head
) {
9527 connector
->new_encoder
=
9528 to_intel_encoder(config
->save_connector_encoders
[count
++]);
9533 is_crtc_connector_off(struct drm_mode_set
*set
)
9537 if (set
->num_connectors
== 0)
9540 if (WARN_ON(set
->connectors
== NULL
))
9543 for (i
= 0; i
< set
->num_connectors
; i
++)
9544 if (set
->connectors
[i
]->encoder
&&
9545 set
->connectors
[i
]->encoder
->crtc
== set
->crtc
&&
9546 set
->connectors
[i
]->dpms
!= DRM_MODE_DPMS_ON
)
9553 intel_set_config_compute_mode_changes(struct drm_mode_set
*set
,
9554 struct intel_set_config
*config
)
9557 /* We should be able to check here if the fb has the same properties
9558 * and then just flip_or_move it */
9559 if (is_crtc_connector_off(set
)) {
9560 config
->mode_changed
= true;
9561 } else if (set
->crtc
->fb
!= set
->fb
) {
9562 /* If we have no fb then treat it as a full mode set */
9563 if (set
->crtc
->fb
== NULL
) {
9564 struct intel_crtc
*intel_crtc
=
9565 to_intel_crtc(set
->crtc
);
9567 if (intel_crtc
->active
&& i915_fastboot
) {
9568 DRM_DEBUG_KMS("crtc has no fb, will flip\n");
9569 config
->fb_changed
= true;
9571 DRM_DEBUG_KMS("inactive crtc, full mode set\n");
9572 config
->mode_changed
= true;
9574 } else if (set
->fb
== NULL
) {
9575 config
->mode_changed
= true;
9576 } else if (set
->fb
->pixel_format
!=
9577 set
->crtc
->fb
->pixel_format
) {
9578 config
->mode_changed
= true;
9580 config
->fb_changed
= true;
9584 if (set
->fb
&& (set
->x
!= set
->crtc
->x
|| set
->y
!= set
->crtc
->y
))
9585 config
->fb_changed
= true;
9587 if (set
->mode
&& !drm_mode_equal(set
->mode
, &set
->crtc
->mode
)) {
9588 DRM_DEBUG_KMS("modes are different, full mode set\n");
9589 drm_mode_debug_printmodeline(&set
->crtc
->mode
);
9590 drm_mode_debug_printmodeline(set
->mode
);
9591 config
->mode_changed
= true;
9594 DRM_DEBUG_KMS("computed changes for [CRTC:%d], mode_changed=%d, fb_changed=%d\n",
9595 set
->crtc
->base
.id
, config
->mode_changed
, config
->fb_changed
);
9599 intel_modeset_stage_output_state(struct drm_device
*dev
,
9600 struct drm_mode_set
*set
,
9601 struct intel_set_config
*config
)
9603 struct drm_crtc
*new_crtc
;
9604 struct intel_connector
*connector
;
9605 struct intel_encoder
*encoder
;
9608 /* The upper layers ensure that we either disable a crtc or have a list
9609 * of connectors. For paranoia, double-check this. */
9610 WARN_ON(!set
->fb
&& (set
->num_connectors
!= 0));
9611 WARN_ON(set
->fb
&& (set
->num_connectors
== 0));
9613 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
9615 /* Otherwise traverse passed in connector list and get encoders
9617 for (ro
= 0; ro
< set
->num_connectors
; ro
++) {
9618 if (set
->connectors
[ro
] == &connector
->base
) {
9619 connector
->new_encoder
= connector
->encoder
;
9624 /* If we disable the crtc, disable all its connectors. Also, if
9625 * the connector is on the changing crtc but not on the new
9626 * connector list, disable it. */
9627 if ((!set
->fb
|| ro
== set
->num_connectors
) &&
9628 connector
->base
.encoder
&&
9629 connector
->base
.encoder
->crtc
== set
->crtc
) {
9630 connector
->new_encoder
= NULL
;
9632 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
9633 connector
->base
.base
.id
,
9634 drm_get_connector_name(&connector
->base
));
9638 if (&connector
->new_encoder
->base
!= connector
->base
.encoder
) {
9639 DRM_DEBUG_KMS("encoder changed, full mode switch\n");
9640 config
->mode_changed
= true;
9643 /* connector->new_encoder is now updated for all connectors. */
9645 /* Update crtc of enabled connectors. */
9646 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
9648 if (!connector
->new_encoder
)
9651 new_crtc
= connector
->new_encoder
->base
.crtc
;
9653 for (ro
= 0; ro
< set
->num_connectors
; ro
++) {
9654 if (set
->connectors
[ro
] == &connector
->base
)
9655 new_crtc
= set
->crtc
;
9658 /* Make sure the new CRTC will work with the encoder */
9659 if (!intel_encoder_crtc_ok(&connector
->new_encoder
->base
,
9663 connector
->encoder
->new_crtc
= to_intel_crtc(new_crtc
);
9665 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
9666 connector
->base
.base
.id
,
9667 drm_get_connector_name(&connector
->base
),
9671 /* Check for any encoders that needs to be disabled. */
9672 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
9674 list_for_each_entry(connector
,
9675 &dev
->mode_config
.connector_list
,
9677 if (connector
->new_encoder
== encoder
) {
9678 WARN_ON(!connector
->new_encoder
->new_crtc
);
9683 encoder
->new_crtc
= NULL
;
9685 /* Only now check for crtc changes so we don't miss encoders
9686 * that will be disabled. */
9687 if (&encoder
->new_crtc
->base
!= encoder
->base
.crtc
) {
9688 DRM_DEBUG_KMS("crtc changed, full mode switch\n");
9689 config
->mode_changed
= true;
9692 /* Now we've also updated encoder->new_crtc for all encoders. */
9697 static int intel_crtc_set_config(struct drm_mode_set
*set
)
9699 struct drm_device
*dev
;
9700 struct drm_mode_set save_set
;
9701 struct intel_set_config
*config
;
9706 BUG_ON(!set
->crtc
->helper_private
);
9708 /* Enforce sane interface api - has been abused by the fb helper. */
9709 BUG_ON(!set
->mode
&& set
->fb
);
9710 BUG_ON(set
->fb
&& set
->num_connectors
== 0);
9713 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
9714 set
->crtc
->base
.id
, set
->fb
->base
.id
,
9715 (int)set
->num_connectors
, set
->x
, set
->y
);
9717 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set
->crtc
->base
.id
);
9720 dev
= set
->crtc
->dev
;
9723 config
= kzalloc(sizeof(*config
), GFP_KERNEL
);
9727 ret
= intel_set_config_save_state(dev
, config
);
9731 save_set
.crtc
= set
->crtc
;
9732 save_set
.mode
= &set
->crtc
->mode
;
9733 save_set
.x
= set
->crtc
->x
;
9734 save_set
.y
= set
->crtc
->y
;
9735 save_set
.fb
= set
->crtc
->fb
;
9737 /* Compute whether we need a full modeset, only an fb base update or no
9738 * change at all. In the future we might also check whether only the
9739 * mode changed, e.g. for LVDS where we only change the panel fitter in
9741 intel_set_config_compute_mode_changes(set
, config
);
9743 ret
= intel_modeset_stage_output_state(dev
, set
, config
);
9747 if (config
->mode_changed
) {
9748 ret
= intel_set_mode(set
->crtc
, set
->mode
,
9749 set
->x
, set
->y
, set
->fb
);
9750 } else if (config
->fb_changed
) {
9751 intel_crtc_wait_for_pending_flips(set
->crtc
);
9753 ret
= intel_pipe_set_base(set
->crtc
,
9754 set
->x
, set
->y
, set
->fb
);
9758 DRM_DEBUG_KMS("failed to set mode on [CRTC:%d], err = %d\n",
9759 set
->crtc
->base
.id
, ret
);
9761 intel_set_config_restore_state(dev
, config
);
9763 /* Try to restore the config */
9764 if (config
->mode_changed
&&
9765 intel_set_mode(save_set
.crtc
, save_set
.mode
,
9766 save_set
.x
, save_set
.y
, save_set
.fb
))
9767 DRM_ERROR("failed to restore config after modeset failure\n");
9771 intel_set_config_free(config
);
9775 static const struct drm_crtc_funcs intel_crtc_funcs
= {
9776 .cursor_set
= intel_crtc_cursor_set
,
9777 .cursor_move
= intel_crtc_cursor_move
,
9778 .gamma_set
= intel_crtc_gamma_set
,
9779 .set_config
= intel_crtc_set_config
,
9780 .destroy
= intel_crtc_destroy
,
9781 .page_flip
= intel_crtc_page_flip
,
9784 static void intel_cpu_pll_init(struct drm_device
*dev
)
9787 intel_ddi_pll_init(dev
);
9790 static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private
*dev_priv
,
9791 struct intel_shared_dpll
*pll
,
9792 struct intel_dpll_hw_state
*hw_state
)
9796 val
= I915_READ(PCH_DPLL(pll
->id
));
9797 hw_state
->dpll
= val
;
9798 hw_state
->fp0
= I915_READ(PCH_FP0(pll
->id
));
9799 hw_state
->fp1
= I915_READ(PCH_FP1(pll
->id
));
9801 return val
& DPLL_VCO_ENABLE
;
9804 static void ibx_pch_dpll_mode_set(struct drm_i915_private
*dev_priv
,
9805 struct intel_shared_dpll
*pll
)
9807 I915_WRITE(PCH_FP0(pll
->id
), pll
->hw_state
.fp0
);
9808 I915_WRITE(PCH_FP1(pll
->id
), pll
->hw_state
.fp1
);
9811 static void ibx_pch_dpll_enable(struct drm_i915_private
*dev_priv
,
9812 struct intel_shared_dpll
*pll
)
9814 /* PCH refclock must be enabled first */
9815 assert_pch_refclk_enabled(dev_priv
);
9817 I915_WRITE(PCH_DPLL(pll
->id
), pll
->hw_state
.dpll
);
9819 /* Wait for the clocks to stabilize. */
9820 POSTING_READ(PCH_DPLL(pll
->id
));
9823 /* The pixel multiplier can only be updated once the
9824 * DPLL is enabled and the clocks are stable.
9826 * So write it again.
9828 I915_WRITE(PCH_DPLL(pll
->id
), pll
->hw_state
.dpll
);
9829 POSTING_READ(PCH_DPLL(pll
->id
));
9833 static void ibx_pch_dpll_disable(struct drm_i915_private
*dev_priv
,
9834 struct intel_shared_dpll
*pll
)
9836 struct drm_device
*dev
= dev_priv
->dev
;
9837 struct intel_crtc
*crtc
;
9839 /* Make sure no transcoder isn't still depending on us. */
9840 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, base
.head
) {
9841 if (intel_crtc_to_shared_dpll(crtc
) == pll
)
9842 assert_pch_transcoder_disabled(dev_priv
, crtc
->pipe
);
9845 I915_WRITE(PCH_DPLL(pll
->id
), 0);
9846 POSTING_READ(PCH_DPLL(pll
->id
));
9850 static char *ibx_pch_dpll_names
[] = {
9855 static void ibx_pch_dpll_init(struct drm_device
*dev
)
9857 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9860 dev_priv
->num_shared_dpll
= 2;
9862 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
9863 dev_priv
->shared_dplls
[i
].id
= i
;
9864 dev_priv
->shared_dplls
[i
].name
= ibx_pch_dpll_names
[i
];
9865 dev_priv
->shared_dplls
[i
].mode_set
= ibx_pch_dpll_mode_set
;
9866 dev_priv
->shared_dplls
[i
].enable
= ibx_pch_dpll_enable
;
9867 dev_priv
->shared_dplls
[i
].disable
= ibx_pch_dpll_disable
;
9868 dev_priv
->shared_dplls
[i
].get_hw_state
=
9869 ibx_pch_dpll_get_hw_state
;
9873 static void intel_shared_dpll_init(struct drm_device
*dev
)
9875 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9877 if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
9878 ibx_pch_dpll_init(dev
);
9880 dev_priv
->num_shared_dpll
= 0;
9882 BUG_ON(dev_priv
->num_shared_dpll
> I915_NUM_PLLS
);
9883 DRM_DEBUG_KMS("%i shared PLLs initialized\n",
9884 dev_priv
->num_shared_dpll
);
9887 static void intel_crtc_init(struct drm_device
*dev
, int pipe
)
9889 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
9890 struct intel_crtc
*intel_crtc
;
9893 intel_crtc
= kzalloc(sizeof(*intel_crtc
), GFP_KERNEL
);
9894 if (intel_crtc
== NULL
)
9897 drm_crtc_init(dev
, &intel_crtc
->base
, &intel_crtc_funcs
);
9899 drm_mode_crtc_set_gamma_size(&intel_crtc
->base
, 256);
9900 for (i
= 0; i
< 256; i
++) {
9901 intel_crtc
->lut_r
[i
] = i
;
9902 intel_crtc
->lut_g
[i
] = i
;
9903 intel_crtc
->lut_b
[i
] = i
;
9906 /* Swap pipes & planes for FBC on pre-965 */
9907 intel_crtc
->pipe
= pipe
;
9908 intel_crtc
->plane
= pipe
;
9909 if (IS_MOBILE(dev
) && IS_GEN3(dev
)) {
9910 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
9911 intel_crtc
->plane
= !pipe
;
9914 BUG_ON(pipe
>= ARRAY_SIZE(dev_priv
->plane_to_crtc_mapping
) ||
9915 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] != NULL
);
9916 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] = &intel_crtc
->base
;
9917 dev_priv
->pipe_to_crtc_mapping
[intel_crtc
->pipe
] = &intel_crtc
->base
;
9919 drm_crtc_helper_add(&intel_crtc
->base
, &intel_helper_funcs
);
9922 enum pipe
intel_get_pipe_from_connector(struct intel_connector
*connector
)
9924 struct drm_encoder
*encoder
= connector
->base
.encoder
;
9926 WARN_ON(!mutex_is_locked(&connector
->base
.dev
->mode_config
.mutex
));
9929 return INVALID_PIPE
;
9931 return to_intel_crtc(encoder
->crtc
)->pipe
;
9934 int intel_get_pipe_from_crtc_id(struct drm_device
*dev
, void *data
,
9935 struct drm_file
*file
)
9937 struct drm_i915_get_pipe_from_crtc_id
*pipe_from_crtc_id
= data
;
9938 struct drm_mode_object
*drmmode_obj
;
9939 struct intel_crtc
*crtc
;
9941 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
9944 drmmode_obj
= drm_mode_object_find(dev
, pipe_from_crtc_id
->crtc_id
,
9945 DRM_MODE_OBJECT_CRTC
);
9948 DRM_ERROR("no such CRTC id\n");
9952 crtc
= to_intel_crtc(obj_to_crtc(drmmode_obj
));
9953 pipe_from_crtc_id
->pipe
= crtc
->pipe
;
9958 static int intel_encoder_clones(struct intel_encoder
*encoder
)
9960 struct drm_device
*dev
= encoder
->base
.dev
;
9961 struct intel_encoder
*source_encoder
;
9965 list_for_each_entry(source_encoder
,
9966 &dev
->mode_config
.encoder_list
, base
.head
) {
9968 if (encoder
== source_encoder
)
9969 index_mask
|= (1 << entry
);
9971 /* Intel hw has only one MUX where enocoders could be cloned. */
9972 if (encoder
->cloneable
&& source_encoder
->cloneable
)
9973 index_mask
|= (1 << entry
);
9981 static bool has_edp_a(struct drm_device
*dev
)
9983 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9985 if (!IS_MOBILE(dev
))
9988 if ((I915_READ(DP_A
) & DP_DETECTED
) == 0)
9992 (I915_READ(ILK_DISPLAY_CHICKEN_FUSES
) & ILK_eDP_A_DISABLE
))
9998 static void intel_setup_outputs(struct drm_device
*dev
)
10000 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10001 struct intel_encoder
*encoder
;
10002 bool dpd_is_edp
= false;
10004 intel_lvds_init(dev
);
10007 intel_crt_init(dev
);
10009 if (HAS_DDI(dev
)) {
10012 /* Haswell uses DDI functions to detect digital outputs */
10013 found
= I915_READ(DDI_BUF_CTL_A
) & DDI_INIT_DISPLAY_DETECTED
;
10014 /* DDI A only supports eDP */
10016 intel_ddi_init(dev
, PORT_A
);
10018 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
10020 found
= I915_READ(SFUSE_STRAP
);
10022 if (found
& SFUSE_STRAP_DDIB_DETECTED
)
10023 intel_ddi_init(dev
, PORT_B
);
10024 if (found
& SFUSE_STRAP_DDIC_DETECTED
)
10025 intel_ddi_init(dev
, PORT_C
);
10026 if (found
& SFUSE_STRAP_DDID_DETECTED
)
10027 intel_ddi_init(dev
, PORT_D
);
10028 } else if (HAS_PCH_SPLIT(dev
)) {
10030 dpd_is_edp
= intel_dpd_is_edp(dev
);
10032 if (has_edp_a(dev
))
10033 intel_dp_init(dev
, DP_A
, PORT_A
);
10035 if (I915_READ(PCH_HDMIB
) & SDVO_DETECTED
) {
10036 /* PCH SDVOB multiplex with HDMIB */
10037 found
= intel_sdvo_init(dev
, PCH_SDVOB
, true);
10039 intel_hdmi_init(dev
, PCH_HDMIB
, PORT_B
);
10040 if (!found
&& (I915_READ(PCH_DP_B
) & DP_DETECTED
))
10041 intel_dp_init(dev
, PCH_DP_B
, PORT_B
);
10044 if (I915_READ(PCH_HDMIC
) & SDVO_DETECTED
)
10045 intel_hdmi_init(dev
, PCH_HDMIC
, PORT_C
);
10047 if (!dpd_is_edp
&& I915_READ(PCH_HDMID
) & SDVO_DETECTED
)
10048 intel_hdmi_init(dev
, PCH_HDMID
, PORT_D
);
10050 if (I915_READ(PCH_DP_C
) & DP_DETECTED
)
10051 intel_dp_init(dev
, PCH_DP_C
, PORT_C
);
10053 if (I915_READ(PCH_DP_D
) & DP_DETECTED
)
10054 intel_dp_init(dev
, PCH_DP_D
, PORT_D
);
10055 } else if (IS_VALLEYVIEW(dev
)) {
10056 if (I915_READ(VLV_DISPLAY_BASE
+ GEN4_HDMIB
) & SDVO_DETECTED
) {
10057 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ GEN4_HDMIB
,
10059 if (I915_READ(VLV_DISPLAY_BASE
+ DP_B
) & DP_DETECTED
)
10060 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_B
, PORT_B
);
10063 if (I915_READ(VLV_DISPLAY_BASE
+ GEN4_HDMIC
) & SDVO_DETECTED
) {
10064 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ GEN4_HDMIC
,
10066 if (I915_READ(VLV_DISPLAY_BASE
+ DP_C
) & DP_DETECTED
)
10067 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_C
,
10071 intel_dsi_init(dev
);
10072 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev
)) {
10073 bool found
= false;
10075 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
10076 DRM_DEBUG_KMS("probing SDVOB\n");
10077 found
= intel_sdvo_init(dev
, GEN3_SDVOB
, true);
10078 if (!found
&& SUPPORTS_INTEGRATED_HDMI(dev
)) {
10079 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
10080 intel_hdmi_init(dev
, GEN4_HDMIB
, PORT_B
);
10083 if (!found
&& SUPPORTS_INTEGRATED_DP(dev
))
10084 intel_dp_init(dev
, DP_B
, PORT_B
);
10087 /* Before G4X SDVOC doesn't have its own detect register */
10089 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
10090 DRM_DEBUG_KMS("probing SDVOC\n");
10091 found
= intel_sdvo_init(dev
, GEN3_SDVOC
, false);
10094 if (!found
&& (I915_READ(GEN3_SDVOC
) & SDVO_DETECTED
)) {
10096 if (SUPPORTS_INTEGRATED_HDMI(dev
)) {
10097 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
10098 intel_hdmi_init(dev
, GEN4_HDMIC
, PORT_C
);
10100 if (SUPPORTS_INTEGRATED_DP(dev
))
10101 intel_dp_init(dev
, DP_C
, PORT_C
);
10104 if (SUPPORTS_INTEGRATED_DP(dev
) &&
10105 (I915_READ(DP_D
) & DP_DETECTED
))
10106 intel_dp_init(dev
, DP_D
, PORT_D
);
10107 } else if (IS_GEN2(dev
))
10108 intel_dvo_init(dev
);
10110 if (SUPPORTS_TV(dev
))
10111 intel_tv_init(dev
);
10113 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, base
.head
) {
10114 encoder
->base
.possible_crtcs
= encoder
->crtc_mask
;
10115 encoder
->base
.possible_clones
=
10116 intel_encoder_clones(encoder
);
10119 intel_init_pch_refclk(dev
);
10121 drm_helper_move_panel_connectors_to_head(dev
);
10124 void intel_framebuffer_fini(struct intel_framebuffer
*fb
)
10126 drm_framebuffer_cleanup(&fb
->base
);
10127 WARN_ON(!fb
->obj
->framebuffer_references
--);
10128 drm_gem_object_unreference_unlocked(&fb
->obj
->base
);
10131 static void intel_user_framebuffer_destroy(struct drm_framebuffer
*fb
)
10133 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
10135 intel_framebuffer_fini(intel_fb
);
10139 static int intel_user_framebuffer_create_handle(struct drm_framebuffer
*fb
,
10140 struct drm_file
*file
,
10141 unsigned int *handle
)
10143 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
10144 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
10146 return drm_gem_handle_create(file
, &obj
->base
, handle
);
10149 static const struct drm_framebuffer_funcs intel_fb_funcs
= {
10150 .destroy
= intel_user_framebuffer_destroy
,
10151 .create_handle
= intel_user_framebuffer_create_handle
,
10154 int intel_framebuffer_init(struct drm_device
*dev
,
10155 struct intel_framebuffer
*intel_fb
,
10156 struct drm_mode_fb_cmd2
*mode_cmd
,
10157 struct drm_i915_gem_object
*obj
)
10159 int aligned_height
, tile_height
;
10163 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
10165 if (obj
->tiling_mode
== I915_TILING_Y
) {
10166 DRM_DEBUG("hardware does not support tiling Y\n");
10170 if (mode_cmd
->pitches
[0] & 63) {
10171 DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n",
10172 mode_cmd
->pitches
[0]);
10176 if (INTEL_INFO(dev
)->gen
>= 5 && !IS_VALLEYVIEW(dev
)) {
10177 pitch_limit
= 32*1024;
10178 } else if (INTEL_INFO(dev
)->gen
>= 4) {
10179 if (obj
->tiling_mode
)
10180 pitch_limit
= 16*1024;
10182 pitch_limit
= 32*1024;
10183 } else if (INTEL_INFO(dev
)->gen
>= 3) {
10184 if (obj
->tiling_mode
)
10185 pitch_limit
= 8*1024;
10187 pitch_limit
= 16*1024;
10189 /* XXX DSPC is limited to 4k tiled */
10190 pitch_limit
= 8*1024;
10192 if (mode_cmd
->pitches
[0] > pitch_limit
) {
10193 DRM_DEBUG("%s pitch (%d) must be at less than %d\n",
10194 obj
->tiling_mode
? "tiled" : "linear",
10195 mode_cmd
->pitches
[0], pitch_limit
);
10199 if (obj
->tiling_mode
!= I915_TILING_NONE
&&
10200 mode_cmd
->pitches
[0] != obj
->stride
) {
10201 DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n",
10202 mode_cmd
->pitches
[0], obj
->stride
);
10206 /* Reject formats not supported by any plane early. */
10207 switch (mode_cmd
->pixel_format
) {
10208 case DRM_FORMAT_C8
:
10209 case DRM_FORMAT_RGB565
:
10210 case DRM_FORMAT_XRGB8888
:
10211 case DRM_FORMAT_ARGB8888
:
10213 case DRM_FORMAT_XRGB1555
:
10214 case DRM_FORMAT_ARGB1555
:
10215 if (INTEL_INFO(dev
)->gen
> 3) {
10216 DRM_DEBUG("unsupported pixel format: %s\n",
10217 drm_get_format_name(mode_cmd
->pixel_format
));
10221 case DRM_FORMAT_XBGR8888
:
10222 case DRM_FORMAT_ABGR8888
:
10223 case DRM_FORMAT_XRGB2101010
:
10224 case DRM_FORMAT_ARGB2101010
:
10225 case DRM_FORMAT_XBGR2101010
:
10226 case DRM_FORMAT_ABGR2101010
:
10227 if (INTEL_INFO(dev
)->gen
< 4) {
10228 DRM_DEBUG("unsupported pixel format: %s\n",
10229 drm_get_format_name(mode_cmd
->pixel_format
));
10233 case DRM_FORMAT_YUYV
:
10234 case DRM_FORMAT_UYVY
:
10235 case DRM_FORMAT_YVYU
:
10236 case DRM_FORMAT_VYUY
:
10237 if (INTEL_INFO(dev
)->gen
< 5) {
10238 DRM_DEBUG("unsupported pixel format: %s\n",
10239 drm_get_format_name(mode_cmd
->pixel_format
));
10244 DRM_DEBUG("unsupported pixel format: %s\n",
10245 drm_get_format_name(mode_cmd
->pixel_format
));
10249 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
10250 if (mode_cmd
->offsets
[0] != 0)
10253 tile_height
= IS_GEN2(dev
) ? 16 : 8;
10254 aligned_height
= ALIGN(mode_cmd
->height
,
10255 obj
->tiling_mode
? tile_height
: 1);
10256 /* FIXME drm helper for size checks (especially planar formats)? */
10257 if (obj
->base
.size
< aligned_height
* mode_cmd
->pitches
[0])
10260 drm_helper_mode_fill_fb_struct(&intel_fb
->base
, mode_cmd
);
10261 intel_fb
->obj
= obj
;
10262 intel_fb
->obj
->framebuffer_references
++;
10264 ret
= drm_framebuffer_init(dev
, &intel_fb
->base
, &intel_fb_funcs
);
10266 DRM_ERROR("framebuffer init failed %d\n", ret
);
10273 static struct drm_framebuffer
*
10274 intel_user_framebuffer_create(struct drm_device
*dev
,
10275 struct drm_file
*filp
,
10276 struct drm_mode_fb_cmd2
*mode_cmd
)
10278 struct drm_i915_gem_object
*obj
;
10280 obj
= to_intel_bo(drm_gem_object_lookup(dev
, filp
,
10281 mode_cmd
->handles
[0]));
10282 if (&obj
->base
== NULL
)
10283 return ERR_PTR(-ENOENT
);
10285 return intel_framebuffer_create(dev
, mode_cmd
, obj
);
10288 #ifndef CONFIG_DRM_I915_FBDEV
10289 static inline void intel_fbdev_output_poll_changed(struct drm_device
*dev
)
10294 static const struct drm_mode_config_funcs intel_mode_funcs
= {
10295 .fb_create
= intel_user_framebuffer_create
,
10296 .output_poll_changed
= intel_fbdev_output_poll_changed
,
10299 /* Set up chip specific display functions */
10300 static void intel_init_display(struct drm_device
*dev
)
10302 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10304 if (HAS_PCH_SPLIT(dev
) || IS_G4X(dev
))
10305 dev_priv
->display
.find_dpll
= g4x_find_best_dpll
;
10306 else if (IS_VALLEYVIEW(dev
))
10307 dev_priv
->display
.find_dpll
= vlv_find_best_dpll
;
10308 else if (IS_PINEVIEW(dev
))
10309 dev_priv
->display
.find_dpll
= pnv_find_best_dpll
;
10311 dev_priv
->display
.find_dpll
= i9xx_find_best_dpll
;
10313 if (HAS_DDI(dev
)) {
10314 dev_priv
->display
.get_pipe_config
= haswell_get_pipe_config
;
10315 dev_priv
->display
.crtc_mode_set
= haswell_crtc_mode_set
;
10316 dev_priv
->display
.crtc_enable
= haswell_crtc_enable
;
10317 dev_priv
->display
.crtc_disable
= haswell_crtc_disable
;
10318 dev_priv
->display
.off
= haswell_crtc_off
;
10319 dev_priv
->display
.update_plane
= ironlake_update_plane
;
10320 } else if (HAS_PCH_SPLIT(dev
)) {
10321 dev_priv
->display
.get_pipe_config
= ironlake_get_pipe_config
;
10322 dev_priv
->display
.crtc_mode_set
= ironlake_crtc_mode_set
;
10323 dev_priv
->display
.crtc_enable
= ironlake_crtc_enable
;
10324 dev_priv
->display
.crtc_disable
= ironlake_crtc_disable
;
10325 dev_priv
->display
.off
= ironlake_crtc_off
;
10326 dev_priv
->display
.update_plane
= ironlake_update_plane
;
10327 } else if (IS_VALLEYVIEW(dev
)) {
10328 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
10329 dev_priv
->display
.crtc_mode_set
= i9xx_crtc_mode_set
;
10330 dev_priv
->display
.crtc_enable
= valleyview_crtc_enable
;
10331 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
10332 dev_priv
->display
.off
= i9xx_crtc_off
;
10333 dev_priv
->display
.update_plane
= i9xx_update_plane
;
10335 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
10336 dev_priv
->display
.crtc_mode_set
= i9xx_crtc_mode_set
;
10337 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
10338 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
10339 dev_priv
->display
.off
= i9xx_crtc_off
;
10340 dev_priv
->display
.update_plane
= i9xx_update_plane
;
10343 /* Returns the core display clock speed */
10344 if (IS_VALLEYVIEW(dev
))
10345 dev_priv
->display
.get_display_clock_speed
=
10346 valleyview_get_display_clock_speed
;
10347 else if (IS_I945G(dev
) || (IS_G33(dev
) && !IS_PINEVIEW_M(dev
)))
10348 dev_priv
->display
.get_display_clock_speed
=
10349 i945_get_display_clock_speed
;
10350 else if (IS_I915G(dev
))
10351 dev_priv
->display
.get_display_clock_speed
=
10352 i915_get_display_clock_speed
;
10353 else if (IS_I945GM(dev
) || IS_845G(dev
))
10354 dev_priv
->display
.get_display_clock_speed
=
10355 i9xx_misc_get_display_clock_speed
;
10356 else if (IS_PINEVIEW(dev
))
10357 dev_priv
->display
.get_display_clock_speed
=
10358 pnv_get_display_clock_speed
;
10359 else if (IS_I915GM(dev
))
10360 dev_priv
->display
.get_display_clock_speed
=
10361 i915gm_get_display_clock_speed
;
10362 else if (IS_I865G(dev
))
10363 dev_priv
->display
.get_display_clock_speed
=
10364 i865_get_display_clock_speed
;
10365 else if (IS_I85X(dev
))
10366 dev_priv
->display
.get_display_clock_speed
=
10367 i855_get_display_clock_speed
;
10368 else /* 852, 830 */
10369 dev_priv
->display
.get_display_clock_speed
=
10370 i830_get_display_clock_speed
;
10372 if (HAS_PCH_SPLIT(dev
)) {
10373 if (IS_GEN5(dev
)) {
10374 dev_priv
->display
.fdi_link_train
= ironlake_fdi_link_train
;
10375 dev_priv
->display
.write_eld
= ironlake_write_eld
;
10376 } else if (IS_GEN6(dev
)) {
10377 dev_priv
->display
.fdi_link_train
= gen6_fdi_link_train
;
10378 dev_priv
->display
.write_eld
= ironlake_write_eld
;
10379 } else if (IS_IVYBRIDGE(dev
)) {
10380 /* FIXME: detect B0+ stepping and use auto training */
10381 dev_priv
->display
.fdi_link_train
= ivb_manual_fdi_link_train
;
10382 dev_priv
->display
.write_eld
= ironlake_write_eld
;
10383 dev_priv
->display
.modeset_global_resources
=
10384 ivb_modeset_global_resources
;
10385 } else if (IS_HASWELL(dev
) || IS_GEN8(dev
)) {
10386 dev_priv
->display
.fdi_link_train
= hsw_fdi_link_train
;
10387 dev_priv
->display
.write_eld
= haswell_write_eld
;
10388 dev_priv
->display
.modeset_global_resources
=
10389 haswell_modeset_global_resources
;
10391 } else if (IS_G4X(dev
)) {
10392 dev_priv
->display
.write_eld
= g4x_write_eld
;
10393 } else if (IS_VALLEYVIEW(dev
))
10394 dev_priv
->display
.write_eld
= ironlake_write_eld
;
10396 /* Default just returns -ENODEV to indicate unsupported */
10397 dev_priv
->display
.queue_flip
= intel_default_queue_flip
;
10399 switch (INTEL_INFO(dev
)->gen
) {
10401 dev_priv
->display
.queue_flip
= intel_gen2_queue_flip
;
10405 dev_priv
->display
.queue_flip
= intel_gen3_queue_flip
;
10410 dev_priv
->display
.queue_flip
= intel_gen4_queue_flip
;
10414 dev_priv
->display
.queue_flip
= intel_gen6_queue_flip
;
10417 case 8: /* FIXME(BDW): Check that the gen8 RCS flip works. */
10418 dev_priv
->display
.queue_flip
= intel_gen7_queue_flip
;
10422 intel_panel_init_backlight_funcs(dev
);
10426 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
10427 * resume, or other times. This quirk makes sure that's the case for
10428 * affected systems.
10430 static void quirk_pipea_force(struct drm_device
*dev
)
10432 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10434 dev_priv
->quirks
|= QUIRK_PIPEA_FORCE
;
10435 DRM_INFO("applying pipe a force quirk\n");
10439 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
10441 static void quirk_ssc_force_disable(struct drm_device
*dev
)
10443 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10444 dev_priv
->quirks
|= QUIRK_LVDS_SSC_DISABLE
;
10445 DRM_INFO("applying lvds SSC disable quirk\n");
10449 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
10452 static void quirk_invert_brightness(struct drm_device
*dev
)
10454 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10455 dev_priv
->quirks
|= QUIRK_INVERT_BRIGHTNESS
;
10456 DRM_INFO("applying inverted panel brightness quirk\n");
10460 * Some machines (Dell XPS13) suffer broken backlight controls if
10461 * BLM_PCH_PWM_ENABLE is set.
10463 static void quirk_no_pcm_pwm_enable(struct drm_device
*dev
)
10465 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10466 dev_priv
->quirks
|= QUIRK_NO_PCH_PWM_ENABLE
;
10467 DRM_INFO("applying no-PCH_PWM_ENABLE quirk\n");
10470 struct intel_quirk
{
10472 int subsystem_vendor
;
10473 int subsystem_device
;
10474 void (*hook
)(struct drm_device
*dev
);
10477 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
10478 struct intel_dmi_quirk
{
10479 void (*hook
)(struct drm_device
*dev
);
10480 const struct dmi_system_id (*dmi_id_list
)[];
10483 static int intel_dmi_reverse_brightness(const struct dmi_system_id
*id
)
10485 DRM_INFO("Backlight polarity reversed on %s\n", id
->ident
);
10489 static const struct intel_dmi_quirk intel_dmi_quirks
[] = {
10491 .dmi_id_list
= &(const struct dmi_system_id
[]) {
10493 .callback
= intel_dmi_reverse_brightness
,
10494 .ident
= "NCR Corporation",
10495 .matches
= {DMI_MATCH(DMI_SYS_VENDOR
, "NCR Corporation"),
10496 DMI_MATCH(DMI_PRODUCT_NAME
, ""),
10499 { } /* terminating entry */
10501 .hook
= quirk_invert_brightness
,
10505 static struct intel_quirk intel_quirks
[] = {
10506 /* HP Mini needs pipe A force quirk (LP: #322104) */
10507 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force
},
10509 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
10510 { 0x2592, 0x1179, 0x0001, quirk_pipea_force
},
10512 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
10513 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force
},
10515 /* 830 needs to leave pipe A & dpll A up */
10516 { 0x3577, PCI_ANY_ID
, PCI_ANY_ID
, quirk_pipea_force
},
10518 /* Lenovo U160 cannot use SSC on LVDS */
10519 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable
},
10521 /* Sony Vaio Y cannot use SSC on LVDS */
10522 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable
},
10525 * All GM45 Acer (and its brands eMachines and Packard Bell) laptops
10526 * seem to use inverted backlight PWM.
10528 { 0x2a42, 0x1025, PCI_ANY_ID
, quirk_invert_brightness
},
10530 /* Dell XPS13 HD Sandy Bridge */
10531 { 0x0116, 0x1028, 0x052e, quirk_no_pcm_pwm_enable
},
10532 /* Dell XPS13 HD and XPS13 FHD Ivy Bridge */
10533 { 0x0166, 0x1028, 0x058b, quirk_no_pcm_pwm_enable
},
10536 static void intel_init_quirks(struct drm_device
*dev
)
10538 struct pci_dev
*d
= dev
->pdev
;
10541 for (i
= 0; i
< ARRAY_SIZE(intel_quirks
); i
++) {
10542 struct intel_quirk
*q
= &intel_quirks
[i
];
10544 if (d
->device
== q
->device
&&
10545 (d
->subsystem_vendor
== q
->subsystem_vendor
||
10546 q
->subsystem_vendor
== PCI_ANY_ID
) &&
10547 (d
->subsystem_device
== q
->subsystem_device
||
10548 q
->subsystem_device
== PCI_ANY_ID
))
10551 for (i
= 0; i
< ARRAY_SIZE(intel_dmi_quirks
); i
++) {
10552 if (dmi_check_system(*intel_dmi_quirks
[i
].dmi_id_list
) != 0)
10553 intel_dmi_quirks
[i
].hook(dev
);
10557 /* Disable the VGA plane that we never use */
10558 static void i915_disable_vga(struct drm_device
*dev
)
10560 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10562 u32 vga_reg
= i915_vgacntrl_reg(dev
);
10564 vga_get_uninterruptible(dev
->pdev
, VGA_RSRC_LEGACY_IO
);
10565 outb(SR01
, VGA_SR_INDEX
);
10566 sr1
= inb(VGA_SR_DATA
);
10567 outb(sr1
| 1<<5, VGA_SR_DATA
);
10568 vga_put(dev
->pdev
, VGA_RSRC_LEGACY_IO
);
10571 I915_WRITE(vga_reg
, VGA_DISP_DISABLE
);
10572 POSTING_READ(vga_reg
);
10575 void intel_modeset_init_hw(struct drm_device
*dev
)
10577 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10579 intel_prepare_ddi(dev
);
10581 intel_init_clock_gating(dev
);
10583 /* Enable the CRI clock source so we can get at the display */
10584 if (IS_VALLEYVIEW(dev
))
10585 I915_WRITE(DPLL(PIPE_B
), I915_READ(DPLL(PIPE_B
)) |
10586 DPLL_INTEGRATED_CRI_CLK_VLV
);
10588 intel_init_dpio(dev
);
10590 mutex_lock(&dev
->struct_mutex
);
10591 intel_enable_gt_powersave(dev
);
10592 mutex_unlock(&dev
->struct_mutex
);
10595 void intel_modeset_suspend_hw(struct drm_device
*dev
)
10597 intel_suspend_hw(dev
);
10600 void intel_modeset_init(struct drm_device
*dev
)
10602 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10605 drm_mode_config_init(dev
);
10607 dev
->mode_config
.min_width
= 0;
10608 dev
->mode_config
.min_height
= 0;
10610 dev
->mode_config
.preferred_depth
= 24;
10611 dev
->mode_config
.prefer_shadow
= 1;
10613 dev
->mode_config
.funcs
= &intel_mode_funcs
;
10615 intel_init_quirks(dev
);
10617 intel_init_pm(dev
);
10619 if (INTEL_INFO(dev
)->num_pipes
== 0)
10622 intel_init_display(dev
);
10624 if (IS_GEN2(dev
)) {
10625 dev
->mode_config
.max_width
= 2048;
10626 dev
->mode_config
.max_height
= 2048;
10627 } else if (IS_GEN3(dev
)) {
10628 dev
->mode_config
.max_width
= 4096;
10629 dev
->mode_config
.max_height
= 4096;
10631 dev
->mode_config
.max_width
= 8192;
10632 dev
->mode_config
.max_height
= 8192;
10634 dev
->mode_config
.fb_base
= dev_priv
->gtt
.mappable_base
;
10636 DRM_DEBUG_KMS("%d display pipe%s available.\n",
10637 INTEL_INFO(dev
)->num_pipes
,
10638 INTEL_INFO(dev
)->num_pipes
> 1 ? "s" : "");
10641 intel_crtc_init(dev
, i
);
10642 for (j
= 0; j
< dev_priv
->num_plane
; j
++) {
10643 ret
= intel_plane_init(dev
, i
, j
);
10645 DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n",
10646 pipe_name(i
), sprite_name(i
, j
), ret
);
10650 intel_cpu_pll_init(dev
);
10651 intel_shared_dpll_init(dev
);
10653 /* Just disable it once at startup */
10654 i915_disable_vga(dev
);
10655 intel_setup_outputs(dev
);
10657 /* Just in case the BIOS is doing something questionable. */
10658 intel_disable_fbc(dev
);
10662 intel_connector_break_all_links(struct intel_connector
*connector
)
10664 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
10665 connector
->base
.encoder
= NULL
;
10666 connector
->encoder
->connectors_active
= false;
10667 connector
->encoder
->base
.crtc
= NULL
;
10670 static void intel_enable_pipe_a(struct drm_device
*dev
)
10672 struct intel_connector
*connector
;
10673 struct drm_connector
*crt
= NULL
;
10674 struct intel_load_detect_pipe load_detect_temp
;
10676 /* We can't just switch on the pipe A, we need to set things up with a
10677 * proper mode and output configuration. As a gross hack, enable pipe A
10678 * by enabling the load detect pipe once. */
10679 list_for_each_entry(connector
,
10680 &dev
->mode_config
.connector_list
,
10682 if (connector
->encoder
->type
== INTEL_OUTPUT_ANALOG
) {
10683 crt
= &connector
->base
;
10691 if (intel_get_load_detect_pipe(crt
, NULL
, &load_detect_temp
))
10692 intel_release_load_detect_pipe(crt
, &load_detect_temp
);
10698 intel_check_plane_mapping(struct intel_crtc
*crtc
)
10700 struct drm_device
*dev
= crtc
->base
.dev
;
10701 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10704 if (INTEL_INFO(dev
)->num_pipes
== 1)
10707 reg
= DSPCNTR(!crtc
->plane
);
10708 val
= I915_READ(reg
);
10710 if ((val
& DISPLAY_PLANE_ENABLE
) &&
10711 (!!(val
& DISPPLANE_SEL_PIPE_MASK
) == crtc
->pipe
))
10717 static void intel_sanitize_crtc(struct intel_crtc
*crtc
)
10719 struct drm_device
*dev
= crtc
->base
.dev
;
10720 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10723 /* Clear any frame start delays used for debugging left by the BIOS */
10724 reg
= PIPECONF(crtc
->config
.cpu_transcoder
);
10725 I915_WRITE(reg
, I915_READ(reg
) & ~PIPECONF_FRAME_START_DELAY_MASK
);
10727 /* We need to sanitize the plane -> pipe mapping first because this will
10728 * disable the crtc (and hence change the state) if it is wrong. Note
10729 * that gen4+ has a fixed plane -> pipe mapping. */
10730 if (INTEL_INFO(dev
)->gen
< 4 && !intel_check_plane_mapping(crtc
)) {
10731 struct intel_connector
*connector
;
10734 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
10735 crtc
->base
.base
.id
);
10737 /* Pipe has the wrong plane attached and the plane is active.
10738 * Temporarily change the plane mapping and disable everything
10740 plane
= crtc
->plane
;
10741 crtc
->plane
= !plane
;
10742 dev_priv
->display
.crtc_disable(&crtc
->base
);
10743 crtc
->plane
= plane
;
10745 /* ... and break all links. */
10746 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
10748 if (connector
->encoder
->base
.crtc
!= &crtc
->base
)
10751 intel_connector_break_all_links(connector
);
10754 WARN_ON(crtc
->active
);
10755 crtc
->base
.enabled
= false;
10758 if (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
&&
10759 crtc
->pipe
== PIPE_A
&& !crtc
->active
) {
10760 /* BIOS forgot to enable pipe A, this mostly happens after
10761 * resume. Force-enable the pipe to fix this, the update_dpms
10762 * call below we restore the pipe to the right state, but leave
10763 * the required bits on. */
10764 intel_enable_pipe_a(dev
);
10767 /* Adjust the state of the output pipe according to whether we
10768 * have active connectors/encoders. */
10769 intel_crtc_update_dpms(&crtc
->base
);
10771 if (crtc
->active
!= crtc
->base
.enabled
) {
10772 struct intel_encoder
*encoder
;
10774 /* This can happen either due to bugs in the get_hw_state
10775 * functions or because the pipe is force-enabled due to the
10777 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
10778 crtc
->base
.base
.id
,
10779 crtc
->base
.enabled
? "enabled" : "disabled",
10780 crtc
->active
? "enabled" : "disabled");
10782 crtc
->base
.enabled
= crtc
->active
;
10784 /* Because we only establish the connector -> encoder ->
10785 * crtc links if something is active, this means the
10786 * crtc is now deactivated. Break the links. connector
10787 * -> encoder links are only establish when things are
10788 * actually up, hence no need to break them. */
10789 WARN_ON(crtc
->active
);
10791 for_each_encoder_on_crtc(dev
, &crtc
->base
, encoder
) {
10792 WARN_ON(encoder
->connectors_active
);
10793 encoder
->base
.crtc
= NULL
;
10798 static void intel_sanitize_encoder(struct intel_encoder
*encoder
)
10800 struct intel_connector
*connector
;
10801 struct drm_device
*dev
= encoder
->base
.dev
;
10803 /* We need to check both for a crtc link (meaning that the
10804 * encoder is active and trying to read from a pipe) and the
10805 * pipe itself being active. */
10806 bool has_active_crtc
= encoder
->base
.crtc
&&
10807 to_intel_crtc(encoder
->base
.crtc
)->active
;
10809 if (encoder
->connectors_active
&& !has_active_crtc
) {
10810 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
10811 encoder
->base
.base
.id
,
10812 drm_get_encoder_name(&encoder
->base
));
10814 /* Connector is active, but has no active pipe. This is
10815 * fallout from our resume register restoring. Disable
10816 * the encoder manually again. */
10817 if (encoder
->base
.crtc
) {
10818 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
10819 encoder
->base
.base
.id
,
10820 drm_get_encoder_name(&encoder
->base
));
10821 encoder
->disable(encoder
);
10824 /* Inconsistent output/port/pipe state happens presumably due to
10825 * a bug in one of the get_hw_state functions. Or someplace else
10826 * in our code, like the register restore mess on resume. Clamp
10827 * things to off as a safer default. */
10828 list_for_each_entry(connector
,
10829 &dev
->mode_config
.connector_list
,
10831 if (connector
->encoder
!= encoder
)
10834 intel_connector_break_all_links(connector
);
10837 /* Enabled encoders without active connectors will be fixed in
10838 * the crtc fixup. */
10841 void i915_redisable_vga(struct drm_device
*dev
)
10843 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10844 u32 vga_reg
= i915_vgacntrl_reg(dev
);
10846 /* This function can be called both from intel_modeset_setup_hw_state or
10847 * at a very early point in our resume sequence, where the power well
10848 * structures are not yet restored. Since this function is at a very
10849 * paranoid "someone might have enabled VGA while we were not looking"
10850 * level, just check if the power well is enabled instead of trying to
10851 * follow the "don't touch the power well if we don't need it" policy
10852 * the rest of the driver uses. */
10853 if (HAS_POWER_WELL(dev
) &&
10854 (I915_READ(HSW_PWR_WELL_DRIVER
) & HSW_PWR_WELL_STATE_ENABLED
) == 0)
10857 if (!(I915_READ(vga_reg
) & VGA_DISP_DISABLE
)) {
10858 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
10859 i915_disable_vga(dev
);
10863 static void intel_modeset_readout_hw_state(struct drm_device
*dev
)
10865 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10867 struct intel_crtc
*crtc
;
10868 struct intel_encoder
*encoder
;
10869 struct intel_connector
*connector
;
10872 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
,
10874 memset(&crtc
->config
, 0, sizeof(crtc
->config
));
10876 crtc
->active
= dev_priv
->display
.get_pipe_config(crtc
,
10879 crtc
->base
.enabled
= crtc
->active
;
10880 crtc
->primary_enabled
= crtc
->active
;
10882 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
10883 crtc
->base
.base
.id
,
10884 crtc
->active
? "enabled" : "disabled");
10887 /* FIXME: Smash this into the new shared dpll infrastructure. */
10889 intel_ddi_setup_hw_pll_state(dev
);
10891 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
10892 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
10894 pll
->on
= pll
->get_hw_state(dev_priv
, pll
, &pll
->hw_state
);
10896 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
,
10898 if (crtc
->active
&& intel_crtc_to_shared_dpll(crtc
) == pll
)
10901 pll
->refcount
= pll
->active
;
10903 DRM_DEBUG_KMS("%s hw state readout: refcount %i, on %i\n",
10904 pll
->name
, pll
->refcount
, pll
->on
);
10907 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
10911 if (encoder
->get_hw_state(encoder
, &pipe
)) {
10912 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
10913 encoder
->base
.crtc
= &crtc
->base
;
10914 if (encoder
->get_config
)
10915 encoder
->get_config(encoder
, &crtc
->config
);
10917 encoder
->base
.crtc
= NULL
;
10920 encoder
->connectors_active
= false;
10921 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n",
10922 encoder
->base
.base
.id
,
10923 drm_get_encoder_name(&encoder
->base
),
10924 encoder
->base
.crtc
? "enabled" : "disabled",
10928 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
10930 if (connector
->get_hw_state(connector
)) {
10931 connector
->base
.dpms
= DRM_MODE_DPMS_ON
;
10932 connector
->encoder
->connectors_active
= true;
10933 connector
->base
.encoder
= &connector
->encoder
->base
;
10935 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
10936 connector
->base
.encoder
= NULL
;
10938 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
10939 connector
->base
.base
.id
,
10940 drm_get_connector_name(&connector
->base
),
10941 connector
->base
.encoder
? "enabled" : "disabled");
10945 /* Scan out the current hw modeset state, sanitizes it and maps it into the drm
10946 * and i915 state tracking structures. */
10947 void intel_modeset_setup_hw_state(struct drm_device
*dev
,
10948 bool force_restore
)
10950 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10952 struct intel_crtc
*crtc
;
10953 struct intel_encoder
*encoder
;
10956 intel_modeset_readout_hw_state(dev
);
10959 * Now that we have the config, copy it to each CRTC struct
10960 * Note that this could go away if we move to using crtc_config
10961 * checking everywhere.
10963 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
,
10965 if (crtc
->active
&& i915_fastboot
) {
10966 intel_crtc_mode_from_pipe_config(crtc
, &crtc
->config
);
10968 DRM_DEBUG_KMS("[CRTC:%d] found active mode: ",
10969 crtc
->base
.base
.id
);
10970 drm_mode_debug_printmodeline(&crtc
->base
.mode
);
10974 /* HW state is read out, now we need to sanitize this mess. */
10975 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
10977 intel_sanitize_encoder(encoder
);
10980 for_each_pipe(pipe
) {
10981 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
10982 intel_sanitize_crtc(crtc
);
10983 intel_dump_pipe_config(crtc
, &crtc
->config
, "[setup_hw_state]");
10986 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
10987 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
10989 if (!pll
->on
|| pll
->active
)
10992 DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll
->name
);
10994 pll
->disable(dev_priv
, pll
);
10998 if (IS_HASWELL(dev
))
10999 ilk_wm_get_hw_state(dev
);
11001 if (force_restore
) {
11002 i915_redisable_vga(dev
);
11005 * We need to use raw interfaces for restoring state to avoid
11006 * checking (bogus) intermediate states.
11008 for_each_pipe(pipe
) {
11009 struct drm_crtc
*crtc
=
11010 dev_priv
->pipe_to_crtc_mapping
[pipe
];
11012 __intel_set_mode(crtc
, &crtc
->mode
, crtc
->x
, crtc
->y
,
11016 intel_modeset_update_staged_output_state(dev
);
11019 intel_modeset_check_state(dev
);
11021 drm_mode_config_reset(dev
);
11024 void intel_modeset_gem_init(struct drm_device
*dev
)
11026 intel_modeset_init_hw(dev
);
11028 intel_setup_overlay(dev
);
11030 intel_modeset_setup_hw_state(dev
, false);
11033 void intel_modeset_cleanup(struct drm_device
*dev
)
11035 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11036 struct drm_crtc
*crtc
;
11037 struct drm_connector
*connector
;
11040 * Interrupts and polling as the first thing to avoid creating havoc.
11041 * Too much stuff here (turning of rps, connectors, ...) would
11042 * experience fancy races otherwise.
11044 drm_irq_uninstall(dev
);
11045 cancel_work_sync(&dev_priv
->hotplug_work
);
11047 * Due to the hpd irq storm handling the hotplug work can re-arm the
11048 * poll handlers. Hence disable polling after hpd handling is shut down.
11050 drm_kms_helper_poll_fini(dev
);
11052 mutex_lock(&dev
->struct_mutex
);
11054 intel_unregister_dsm_handler();
11056 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
11057 /* Skip inactive CRTCs */
11061 intel_increase_pllclock(crtc
);
11064 intel_disable_fbc(dev
);
11066 intel_disable_gt_powersave(dev
);
11068 ironlake_teardown_rc6(dev
);
11070 mutex_unlock(&dev
->struct_mutex
);
11072 /* flush any delayed tasks or pending work */
11073 flush_scheduled_work();
11075 /* destroy the backlight and sysfs files before encoders/connectors */
11076 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
11077 intel_panel_destroy_backlight(connector
);
11078 drm_sysfs_connector_remove(connector
);
11081 drm_mode_config_cleanup(dev
);
11083 intel_cleanup_overlay(dev
);
11087 * Return which encoder is currently attached for connector.
11089 struct drm_encoder
*intel_best_encoder(struct drm_connector
*connector
)
11091 return &intel_attached_encoder(connector
)->base
;
11094 void intel_connector_attach_encoder(struct intel_connector
*connector
,
11095 struct intel_encoder
*encoder
)
11097 connector
->encoder
= encoder
;
11098 drm_mode_connector_attach_encoder(&connector
->base
,
11103 * set vga decode state - true == enable VGA decode
11105 int intel_modeset_vga_set_state(struct drm_device
*dev
, bool state
)
11107 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11110 pci_read_config_word(dev_priv
->bridge_dev
, INTEL_GMCH_CTRL
, &gmch_ctrl
);
11112 gmch_ctrl
&= ~INTEL_GMCH_VGA_DISABLE
;
11114 gmch_ctrl
|= INTEL_GMCH_VGA_DISABLE
;
11115 pci_write_config_word(dev_priv
->bridge_dev
, INTEL_GMCH_CTRL
, gmch_ctrl
);
11119 struct intel_display_error_state
{
11121 u32 power_well_driver
;
11123 int num_transcoders
;
11125 struct intel_cursor_error_state
{
11130 } cursor
[I915_MAX_PIPES
];
11132 struct intel_pipe_error_state
{
11134 } pipe
[I915_MAX_PIPES
];
11136 struct intel_plane_error_state
{
11144 } plane
[I915_MAX_PIPES
];
11146 struct intel_transcoder_error_state
{
11147 enum transcoder cpu_transcoder
;
11160 struct intel_display_error_state
*
11161 intel_display_capture_error_state(struct drm_device
*dev
)
11163 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
11164 struct intel_display_error_state
*error
;
11165 int transcoders
[] = {
11173 if (INTEL_INFO(dev
)->num_pipes
== 0)
11176 error
= kzalloc(sizeof(*error
), GFP_ATOMIC
);
11180 if (HAS_POWER_WELL(dev
))
11181 error
->power_well_driver
= I915_READ(HSW_PWR_WELL_DRIVER
);
11184 if (!intel_display_power_enabled(dev
, POWER_DOMAIN_PIPE(i
)))
11187 if (INTEL_INFO(dev
)->gen
<= 6 || IS_VALLEYVIEW(dev
)) {
11188 error
->cursor
[i
].control
= I915_READ(CURCNTR(i
));
11189 error
->cursor
[i
].position
= I915_READ(CURPOS(i
));
11190 error
->cursor
[i
].base
= I915_READ(CURBASE(i
));
11192 error
->cursor
[i
].control
= I915_READ(CURCNTR_IVB(i
));
11193 error
->cursor
[i
].position
= I915_READ(CURPOS_IVB(i
));
11194 error
->cursor
[i
].base
= I915_READ(CURBASE_IVB(i
));
11197 error
->plane
[i
].control
= I915_READ(DSPCNTR(i
));
11198 error
->plane
[i
].stride
= I915_READ(DSPSTRIDE(i
));
11199 if (INTEL_INFO(dev
)->gen
<= 3) {
11200 error
->plane
[i
].size
= I915_READ(DSPSIZE(i
));
11201 error
->plane
[i
].pos
= I915_READ(DSPPOS(i
));
11203 if (INTEL_INFO(dev
)->gen
<= 7 && !IS_HASWELL(dev
))
11204 error
->plane
[i
].addr
= I915_READ(DSPADDR(i
));
11205 if (INTEL_INFO(dev
)->gen
>= 4) {
11206 error
->plane
[i
].surface
= I915_READ(DSPSURF(i
));
11207 error
->plane
[i
].tile_offset
= I915_READ(DSPTILEOFF(i
));
11210 error
->pipe
[i
].source
= I915_READ(PIPESRC(i
));
11213 error
->num_transcoders
= INTEL_INFO(dev
)->num_pipes
;
11214 if (HAS_DDI(dev_priv
->dev
))
11215 error
->num_transcoders
++; /* Account for eDP. */
11217 for (i
= 0; i
< error
->num_transcoders
; i
++) {
11218 enum transcoder cpu_transcoder
= transcoders
[i
];
11220 if (!intel_display_power_enabled(dev
,
11221 POWER_DOMAIN_TRANSCODER(cpu_transcoder
)))
11224 error
->transcoder
[i
].cpu_transcoder
= cpu_transcoder
;
11226 error
->transcoder
[i
].conf
= I915_READ(PIPECONF(cpu_transcoder
));
11227 error
->transcoder
[i
].htotal
= I915_READ(HTOTAL(cpu_transcoder
));
11228 error
->transcoder
[i
].hblank
= I915_READ(HBLANK(cpu_transcoder
));
11229 error
->transcoder
[i
].hsync
= I915_READ(HSYNC(cpu_transcoder
));
11230 error
->transcoder
[i
].vtotal
= I915_READ(VTOTAL(cpu_transcoder
));
11231 error
->transcoder
[i
].vblank
= I915_READ(VBLANK(cpu_transcoder
));
11232 error
->transcoder
[i
].vsync
= I915_READ(VSYNC(cpu_transcoder
));
11238 #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
11241 intel_display_print_error_state(struct drm_i915_error_state_buf
*m
,
11242 struct drm_device
*dev
,
11243 struct intel_display_error_state
*error
)
11250 err_printf(m
, "Num Pipes: %d\n", INTEL_INFO(dev
)->num_pipes
);
11251 if (HAS_POWER_WELL(dev
))
11252 err_printf(m
, "PWR_WELL_CTL2: %08x\n",
11253 error
->power_well_driver
);
11255 err_printf(m
, "Pipe [%d]:\n", i
);
11256 err_printf(m
, " SRC: %08x\n", error
->pipe
[i
].source
);
11258 err_printf(m
, "Plane [%d]:\n", i
);
11259 err_printf(m
, " CNTR: %08x\n", error
->plane
[i
].control
);
11260 err_printf(m
, " STRIDE: %08x\n", error
->plane
[i
].stride
);
11261 if (INTEL_INFO(dev
)->gen
<= 3) {
11262 err_printf(m
, " SIZE: %08x\n", error
->plane
[i
].size
);
11263 err_printf(m
, " POS: %08x\n", error
->plane
[i
].pos
);
11265 if (INTEL_INFO(dev
)->gen
<= 7 && !IS_HASWELL(dev
))
11266 err_printf(m
, " ADDR: %08x\n", error
->plane
[i
].addr
);
11267 if (INTEL_INFO(dev
)->gen
>= 4) {
11268 err_printf(m
, " SURF: %08x\n", error
->plane
[i
].surface
);
11269 err_printf(m
, " TILEOFF: %08x\n", error
->plane
[i
].tile_offset
);
11272 err_printf(m
, "Cursor [%d]:\n", i
);
11273 err_printf(m
, " CNTR: %08x\n", error
->cursor
[i
].control
);
11274 err_printf(m
, " POS: %08x\n", error
->cursor
[i
].position
);
11275 err_printf(m
, " BASE: %08x\n", error
->cursor
[i
].base
);
11278 for (i
= 0; i
< error
->num_transcoders
; i
++) {
11279 err_printf(m
, "CPU transcoder: %c\n",
11280 transcoder_name(error
->transcoder
[i
].cpu_transcoder
));
11281 err_printf(m
, " CONF: %08x\n", error
->transcoder
[i
].conf
);
11282 err_printf(m
, " HTOTAL: %08x\n", error
->transcoder
[i
].htotal
);
11283 err_printf(m
, " HBLANK: %08x\n", error
->transcoder
[i
].hblank
);
11284 err_printf(m
, " HSYNC: %08x\n", error
->transcoder
[i
].hsync
);
11285 err_printf(m
, " VTOTAL: %08x\n", error
->transcoder
[i
].vtotal
);
11286 err_printf(m
, " VBLANK: %08x\n", error
->transcoder
[i
].vblank
);
11287 err_printf(m
, " VSYNC: %08x\n", error
->transcoder
[i
].vsync
);