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_atomic.h>
41 #include <drm/drm_atomic_helper.h>
42 #include <drm/drm_dp_helper.h>
43 #include <drm/drm_crtc_helper.h>
44 #include <drm/drm_plane_helper.h>
45 #include <drm/drm_rect.h>
46 #include <linux/dma_remapping.h>
48 /* Primary plane formats supported by all gen */
49 #define COMMON_PRIMARY_FORMATS \
52 DRM_FORMAT_XRGB8888, \
55 /* Primary plane formats for gen <= 3 */
56 static const uint32_t intel_primary_formats_gen2
[] = {
57 COMMON_PRIMARY_FORMATS
,
62 /* Primary plane formats for gen >= 4 */
63 static const uint32_t intel_primary_formats_gen4
[] = {
64 COMMON_PRIMARY_FORMATS
, \
67 DRM_FORMAT_XRGB2101010
,
68 DRM_FORMAT_ARGB2101010
,
69 DRM_FORMAT_XBGR2101010
,
70 DRM_FORMAT_ABGR2101010
,
74 static const uint32_t intel_cursor_formats
[] = {
78 static void intel_crtc_update_cursor(struct drm_crtc
*crtc
, bool on
);
80 static void i9xx_crtc_clock_get(struct intel_crtc
*crtc
,
81 struct intel_crtc_state
*pipe_config
);
82 static void ironlake_pch_clock_get(struct intel_crtc
*crtc
,
83 struct intel_crtc_state
*pipe_config
);
85 static int intel_set_mode(struct drm_crtc
*crtc
,
86 struct drm_atomic_state
*state
);
87 static int intel_framebuffer_init(struct drm_device
*dev
,
88 struct intel_framebuffer
*ifb
,
89 struct drm_mode_fb_cmd2
*mode_cmd
,
90 struct drm_i915_gem_object
*obj
);
91 static void i9xx_set_pipeconf(struct intel_crtc
*intel_crtc
);
92 static void intel_set_pipe_timings(struct intel_crtc
*intel_crtc
);
93 static void intel_cpu_transcoder_set_m_n(struct intel_crtc
*crtc
,
94 struct intel_link_m_n
*m_n
,
95 struct intel_link_m_n
*m2_n2
);
96 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
);
97 static void haswell_set_pipeconf(struct drm_crtc
*crtc
);
98 static void intel_set_pipe_csc(struct drm_crtc
*crtc
);
99 static void vlv_prepare_pll(struct intel_crtc
*crtc
,
100 const struct intel_crtc_state
*pipe_config
);
101 static void chv_prepare_pll(struct intel_crtc
*crtc
,
102 const struct intel_crtc_state
*pipe_config
);
103 static void intel_begin_crtc_commit(struct drm_crtc
*crtc
);
104 static void intel_finish_crtc_commit(struct drm_crtc
*crtc
);
105 static void skl_init_scalers(struct drm_device
*dev
, struct intel_crtc
*intel_crtc
,
106 struct intel_crtc_state
*crtc_state
);
107 static int i9xx_get_refclk(const struct intel_crtc_state
*crtc_state
,
109 static void intel_crtc_enable_planes(struct drm_crtc
*crtc
);
110 static void intel_crtc_disable_planes(struct drm_crtc
*crtc
);
112 static struct intel_encoder
*intel_find_encoder(struct intel_connector
*connector
, int pipe
)
114 if (!connector
->mst_port
)
115 return connector
->encoder
;
117 return &connector
->mst_port
->mst_encoders
[pipe
]->base
;
126 int p2_slow
, p2_fast
;
129 typedef struct intel_limit intel_limit_t
;
131 intel_range_t dot
, vco
, n
, m
, m1
, m2
, p
, p1
;
136 intel_pch_rawclk(struct drm_device
*dev
)
138 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
140 WARN_ON(!HAS_PCH_SPLIT(dev
));
142 return I915_READ(PCH_RAWCLK_FREQ
) & RAWCLK_FREQ_MASK
;
145 static inline u32
/* units of 100MHz */
146 intel_fdi_link_freq(struct drm_device
*dev
)
149 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
150 return (I915_READ(FDI_PLL_BIOS_0
) & FDI_PLL_FB_CLOCK_MASK
) + 2;
155 static const intel_limit_t intel_limits_i8xx_dac
= {
156 .dot
= { .min
= 25000, .max
= 350000 },
157 .vco
= { .min
= 908000, .max
= 1512000 },
158 .n
= { .min
= 2, .max
= 16 },
159 .m
= { .min
= 96, .max
= 140 },
160 .m1
= { .min
= 18, .max
= 26 },
161 .m2
= { .min
= 6, .max
= 16 },
162 .p
= { .min
= 4, .max
= 128 },
163 .p1
= { .min
= 2, .max
= 33 },
164 .p2
= { .dot_limit
= 165000,
165 .p2_slow
= 4, .p2_fast
= 2 },
168 static const intel_limit_t intel_limits_i8xx_dvo
= {
169 .dot
= { .min
= 25000, .max
= 350000 },
170 .vco
= { .min
= 908000, .max
= 1512000 },
171 .n
= { .min
= 2, .max
= 16 },
172 .m
= { .min
= 96, .max
= 140 },
173 .m1
= { .min
= 18, .max
= 26 },
174 .m2
= { .min
= 6, .max
= 16 },
175 .p
= { .min
= 4, .max
= 128 },
176 .p1
= { .min
= 2, .max
= 33 },
177 .p2
= { .dot_limit
= 165000,
178 .p2_slow
= 4, .p2_fast
= 4 },
181 static const intel_limit_t intel_limits_i8xx_lvds
= {
182 .dot
= { .min
= 25000, .max
= 350000 },
183 .vco
= { .min
= 908000, .max
= 1512000 },
184 .n
= { .min
= 2, .max
= 16 },
185 .m
= { .min
= 96, .max
= 140 },
186 .m1
= { .min
= 18, .max
= 26 },
187 .m2
= { .min
= 6, .max
= 16 },
188 .p
= { .min
= 4, .max
= 128 },
189 .p1
= { .min
= 1, .max
= 6 },
190 .p2
= { .dot_limit
= 165000,
191 .p2_slow
= 14, .p2_fast
= 7 },
194 static const intel_limit_t intel_limits_i9xx_sdvo
= {
195 .dot
= { .min
= 20000, .max
= 400000 },
196 .vco
= { .min
= 1400000, .max
= 2800000 },
197 .n
= { .min
= 1, .max
= 6 },
198 .m
= { .min
= 70, .max
= 120 },
199 .m1
= { .min
= 8, .max
= 18 },
200 .m2
= { .min
= 3, .max
= 7 },
201 .p
= { .min
= 5, .max
= 80 },
202 .p1
= { .min
= 1, .max
= 8 },
203 .p2
= { .dot_limit
= 200000,
204 .p2_slow
= 10, .p2_fast
= 5 },
207 static const intel_limit_t intel_limits_i9xx_lvds
= {
208 .dot
= { .min
= 20000, .max
= 400000 },
209 .vco
= { .min
= 1400000, .max
= 2800000 },
210 .n
= { .min
= 1, .max
= 6 },
211 .m
= { .min
= 70, .max
= 120 },
212 .m1
= { .min
= 8, .max
= 18 },
213 .m2
= { .min
= 3, .max
= 7 },
214 .p
= { .min
= 7, .max
= 98 },
215 .p1
= { .min
= 1, .max
= 8 },
216 .p2
= { .dot_limit
= 112000,
217 .p2_slow
= 14, .p2_fast
= 7 },
221 static const intel_limit_t intel_limits_g4x_sdvo
= {
222 .dot
= { .min
= 25000, .max
= 270000 },
223 .vco
= { .min
= 1750000, .max
= 3500000},
224 .n
= { .min
= 1, .max
= 4 },
225 .m
= { .min
= 104, .max
= 138 },
226 .m1
= { .min
= 17, .max
= 23 },
227 .m2
= { .min
= 5, .max
= 11 },
228 .p
= { .min
= 10, .max
= 30 },
229 .p1
= { .min
= 1, .max
= 3},
230 .p2
= { .dot_limit
= 270000,
236 static const intel_limit_t intel_limits_g4x_hdmi
= {
237 .dot
= { .min
= 22000, .max
= 400000 },
238 .vco
= { .min
= 1750000, .max
= 3500000},
239 .n
= { .min
= 1, .max
= 4 },
240 .m
= { .min
= 104, .max
= 138 },
241 .m1
= { .min
= 16, .max
= 23 },
242 .m2
= { .min
= 5, .max
= 11 },
243 .p
= { .min
= 5, .max
= 80 },
244 .p1
= { .min
= 1, .max
= 8},
245 .p2
= { .dot_limit
= 165000,
246 .p2_slow
= 10, .p2_fast
= 5 },
249 static const intel_limit_t intel_limits_g4x_single_channel_lvds
= {
250 .dot
= { .min
= 20000, .max
= 115000 },
251 .vco
= { .min
= 1750000, .max
= 3500000 },
252 .n
= { .min
= 1, .max
= 3 },
253 .m
= { .min
= 104, .max
= 138 },
254 .m1
= { .min
= 17, .max
= 23 },
255 .m2
= { .min
= 5, .max
= 11 },
256 .p
= { .min
= 28, .max
= 112 },
257 .p1
= { .min
= 2, .max
= 8 },
258 .p2
= { .dot_limit
= 0,
259 .p2_slow
= 14, .p2_fast
= 14
263 static const intel_limit_t intel_limits_g4x_dual_channel_lvds
= {
264 .dot
= { .min
= 80000, .max
= 224000 },
265 .vco
= { .min
= 1750000, .max
= 3500000 },
266 .n
= { .min
= 1, .max
= 3 },
267 .m
= { .min
= 104, .max
= 138 },
268 .m1
= { .min
= 17, .max
= 23 },
269 .m2
= { .min
= 5, .max
= 11 },
270 .p
= { .min
= 14, .max
= 42 },
271 .p1
= { .min
= 2, .max
= 6 },
272 .p2
= { .dot_limit
= 0,
273 .p2_slow
= 7, .p2_fast
= 7
277 static const intel_limit_t intel_limits_pineview_sdvo
= {
278 .dot
= { .min
= 20000, .max
= 400000},
279 .vco
= { .min
= 1700000, .max
= 3500000 },
280 /* Pineview's Ncounter is a ring counter */
281 .n
= { .min
= 3, .max
= 6 },
282 .m
= { .min
= 2, .max
= 256 },
283 /* Pineview only has one combined m divider, which we treat as m2. */
284 .m1
= { .min
= 0, .max
= 0 },
285 .m2
= { .min
= 0, .max
= 254 },
286 .p
= { .min
= 5, .max
= 80 },
287 .p1
= { .min
= 1, .max
= 8 },
288 .p2
= { .dot_limit
= 200000,
289 .p2_slow
= 10, .p2_fast
= 5 },
292 static const intel_limit_t intel_limits_pineview_lvds
= {
293 .dot
= { .min
= 20000, .max
= 400000 },
294 .vco
= { .min
= 1700000, .max
= 3500000 },
295 .n
= { .min
= 3, .max
= 6 },
296 .m
= { .min
= 2, .max
= 256 },
297 .m1
= { .min
= 0, .max
= 0 },
298 .m2
= { .min
= 0, .max
= 254 },
299 .p
= { .min
= 7, .max
= 112 },
300 .p1
= { .min
= 1, .max
= 8 },
301 .p2
= { .dot_limit
= 112000,
302 .p2_slow
= 14, .p2_fast
= 14 },
305 /* Ironlake / Sandybridge
307 * We calculate clock using (register_value + 2) for N/M1/M2, so here
308 * the range value for them is (actual_value - 2).
310 static const intel_limit_t intel_limits_ironlake_dac
= {
311 .dot
= { .min
= 25000, .max
= 350000 },
312 .vco
= { .min
= 1760000, .max
= 3510000 },
313 .n
= { .min
= 1, .max
= 5 },
314 .m
= { .min
= 79, .max
= 127 },
315 .m1
= { .min
= 12, .max
= 22 },
316 .m2
= { .min
= 5, .max
= 9 },
317 .p
= { .min
= 5, .max
= 80 },
318 .p1
= { .min
= 1, .max
= 8 },
319 .p2
= { .dot_limit
= 225000,
320 .p2_slow
= 10, .p2_fast
= 5 },
323 static const intel_limit_t intel_limits_ironlake_single_lvds
= {
324 .dot
= { .min
= 25000, .max
= 350000 },
325 .vco
= { .min
= 1760000, .max
= 3510000 },
326 .n
= { .min
= 1, .max
= 3 },
327 .m
= { .min
= 79, .max
= 118 },
328 .m1
= { .min
= 12, .max
= 22 },
329 .m2
= { .min
= 5, .max
= 9 },
330 .p
= { .min
= 28, .max
= 112 },
331 .p1
= { .min
= 2, .max
= 8 },
332 .p2
= { .dot_limit
= 225000,
333 .p2_slow
= 14, .p2_fast
= 14 },
336 static const intel_limit_t intel_limits_ironlake_dual_lvds
= {
337 .dot
= { .min
= 25000, .max
= 350000 },
338 .vco
= { .min
= 1760000, .max
= 3510000 },
339 .n
= { .min
= 1, .max
= 3 },
340 .m
= { .min
= 79, .max
= 127 },
341 .m1
= { .min
= 12, .max
= 22 },
342 .m2
= { .min
= 5, .max
= 9 },
343 .p
= { .min
= 14, .max
= 56 },
344 .p1
= { .min
= 2, .max
= 8 },
345 .p2
= { .dot_limit
= 225000,
346 .p2_slow
= 7, .p2_fast
= 7 },
349 /* LVDS 100mhz refclk limits. */
350 static const intel_limit_t intel_limits_ironlake_single_lvds_100m
= {
351 .dot
= { .min
= 25000, .max
= 350000 },
352 .vco
= { .min
= 1760000, .max
= 3510000 },
353 .n
= { .min
= 1, .max
= 2 },
354 .m
= { .min
= 79, .max
= 126 },
355 .m1
= { .min
= 12, .max
= 22 },
356 .m2
= { .min
= 5, .max
= 9 },
357 .p
= { .min
= 28, .max
= 112 },
358 .p1
= { .min
= 2, .max
= 8 },
359 .p2
= { .dot_limit
= 225000,
360 .p2_slow
= 14, .p2_fast
= 14 },
363 static const intel_limit_t intel_limits_ironlake_dual_lvds_100m
= {
364 .dot
= { .min
= 25000, .max
= 350000 },
365 .vco
= { .min
= 1760000, .max
= 3510000 },
366 .n
= { .min
= 1, .max
= 3 },
367 .m
= { .min
= 79, .max
= 126 },
368 .m1
= { .min
= 12, .max
= 22 },
369 .m2
= { .min
= 5, .max
= 9 },
370 .p
= { .min
= 14, .max
= 42 },
371 .p1
= { .min
= 2, .max
= 6 },
372 .p2
= { .dot_limit
= 225000,
373 .p2_slow
= 7, .p2_fast
= 7 },
376 static const intel_limit_t intel_limits_vlv
= {
378 * These are the data rate limits (measured in fast clocks)
379 * since those are the strictest limits we have. The fast
380 * clock and actual rate limits are more relaxed, so checking
381 * them would make no difference.
383 .dot
= { .min
= 25000 * 5, .max
= 270000 * 5 },
384 .vco
= { .min
= 4000000, .max
= 6000000 },
385 .n
= { .min
= 1, .max
= 7 },
386 .m1
= { .min
= 2, .max
= 3 },
387 .m2
= { .min
= 11, .max
= 156 },
388 .p1
= { .min
= 2, .max
= 3 },
389 .p2
= { .p2_slow
= 2, .p2_fast
= 20 }, /* slow=min, fast=max */
392 static const intel_limit_t intel_limits_chv
= {
394 * These are the data rate limits (measured in fast clocks)
395 * since those are the strictest limits we have. The fast
396 * clock and actual rate limits are more relaxed, so checking
397 * them would make no difference.
399 .dot
= { .min
= 25000 * 5, .max
= 540000 * 5},
400 .vco
= { .min
= 4800000, .max
= 6480000 },
401 .n
= { .min
= 1, .max
= 1 },
402 .m1
= { .min
= 2, .max
= 2 },
403 .m2
= { .min
= 24 << 22, .max
= 175 << 22 },
404 .p1
= { .min
= 2, .max
= 4 },
405 .p2
= { .p2_slow
= 1, .p2_fast
= 14 },
408 static const intel_limit_t intel_limits_bxt
= {
409 /* FIXME: find real dot limits */
410 .dot
= { .min
= 0, .max
= INT_MAX
},
411 .vco
= { .min
= 4800000, .max
= 6480000 },
412 .n
= { .min
= 1, .max
= 1 },
413 .m1
= { .min
= 2, .max
= 2 },
414 /* FIXME: find real m2 limits */
415 .m2
= { .min
= 2 << 22, .max
= 255 << 22 },
416 .p1
= { .min
= 2, .max
= 4 },
417 .p2
= { .p2_slow
= 1, .p2_fast
= 20 },
420 static void vlv_clock(int refclk
, intel_clock_t
*clock
)
422 clock
->m
= clock
->m1
* clock
->m2
;
423 clock
->p
= clock
->p1
* clock
->p2
;
424 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
426 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
);
427 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
431 * Returns whether any output on the specified pipe is of the specified type
433 bool intel_pipe_has_type(struct intel_crtc
*crtc
, enum intel_output_type type
)
435 struct drm_device
*dev
= crtc
->base
.dev
;
436 struct intel_encoder
*encoder
;
438 for_each_encoder_on_crtc(dev
, &crtc
->base
, encoder
)
439 if (encoder
->type
== type
)
446 * Returns whether any output on the specified pipe will have the specified
447 * type after a staged modeset is complete, i.e., the same as
448 * intel_pipe_has_type() but looking at encoder->new_crtc instead of
451 static bool intel_pipe_will_have_type(const struct intel_crtc_state
*crtc_state
,
454 struct drm_atomic_state
*state
= crtc_state
->base
.state
;
455 struct drm_connector
*connector
;
456 struct drm_connector_state
*connector_state
;
457 struct intel_encoder
*encoder
;
458 int i
, num_connectors
= 0;
460 for_each_connector_in_state(state
, connector
, connector_state
, i
) {
461 if (connector_state
->crtc
!= crtc_state
->base
.crtc
)
466 encoder
= to_intel_encoder(connector_state
->best_encoder
);
467 if (encoder
->type
== type
)
471 WARN_ON(num_connectors
== 0);
476 static const intel_limit_t
*
477 intel_ironlake_limit(struct intel_crtc_state
*crtc_state
, int refclk
)
479 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
480 const intel_limit_t
*limit
;
482 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
483 if (intel_is_dual_link_lvds(dev
)) {
484 if (refclk
== 100000)
485 limit
= &intel_limits_ironlake_dual_lvds_100m
;
487 limit
= &intel_limits_ironlake_dual_lvds
;
489 if (refclk
== 100000)
490 limit
= &intel_limits_ironlake_single_lvds_100m
;
492 limit
= &intel_limits_ironlake_single_lvds
;
495 limit
= &intel_limits_ironlake_dac
;
500 static const intel_limit_t
*
501 intel_g4x_limit(struct intel_crtc_state
*crtc_state
)
503 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
504 const intel_limit_t
*limit
;
506 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
507 if (intel_is_dual_link_lvds(dev
))
508 limit
= &intel_limits_g4x_dual_channel_lvds
;
510 limit
= &intel_limits_g4x_single_channel_lvds
;
511 } else if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_HDMI
) ||
512 intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_ANALOG
)) {
513 limit
= &intel_limits_g4x_hdmi
;
514 } else if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_SDVO
)) {
515 limit
= &intel_limits_g4x_sdvo
;
516 } else /* The option is for other outputs */
517 limit
= &intel_limits_i9xx_sdvo
;
522 static const intel_limit_t
*
523 intel_limit(struct intel_crtc_state
*crtc_state
, int refclk
)
525 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
526 const intel_limit_t
*limit
;
529 limit
= &intel_limits_bxt
;
530 else if (HAS_PCH_SPLIT(dev
))
531 limit
= intel_ironlake_limit(crtc_state
, refclk
);
532 else if (IS_G4X(dev
)) {
533 limit
= intel_g4x_limit(crtc_state
);
534 } else if (IS_PINEVIEW(dev
)) {
535 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
))
536 limit
= &intel_limits_pineview_lvds
;
538 limit
= &intel_limits_pineview_sdvo
;
539 } else if (IS_CHERRYVIEW(dev
)) {
540 limit
= &intel_limits_chv
;
541 } else if (IS_VALLEYVIEW(dev
)) {
542 limit
= &intel_limits_vlv
;
543 } else if (!IS_GEN2(dev
)) {
544 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
))
545 limit
= &intel_limits_i9xx_lvds
;
547 limit
= &intel_limits_i9xx_sdvo
;
549 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
))
550 limit
= &intel_limits_i8xx_lvds
;
551 else if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_DVO
))
552 limit
= &intel_limits_i8xx_dvo
;
554 limit
= &intel_limits_i8xx_dac
;
559 /* m1 is reserved as 0 in Pineview, n is a ring counter */
560 static void pineview_clock(int refclk
, intel_clock_t
*clock
)
562 clock
->m
= clock
->m2
+ 2;
563 clock
->p
= clock
->p1
* clock
->p2
;
564 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
566 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
);
567 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
570 static uint32_t i9xx_dpll_compute_m(struct dpll
*dpll
)
572 return 5 * (dpll
->m1
+ 2) + (dpll
->m2
+ 2);
575 static void i9xx_clock(int refclk
, intel_clock_t
*clock
)
577 clock
->m
= i9xx_dpll_compute_m(clock
);
578 clock
->p
= clock
->p1
* clock
->p2
;
579 if (WARN_ON(clock
->n
+ 2 == 0 || clock
->p
== 0))
581 clock
->vco
= DIV_ROUND_CLOSEST(refclk
* clock
->m
, clock
->n
+ 2);
582 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
585 static void chv_clock(int refclk
, intel_clock_t
*clock
)
587 clock
->m
= clock
->m1
* clock
->m2
;
588 clock
->p
= clock
->p1
* clock
->p2
;
589 if (WARN_ON(clock
->n
== 0 || clock
->p
== 0))
591 clock
->vco
= DIV_ROUND_CLOSEST_ULL((uint64_t)refclk
* clock
->m
,
593 clock
->dot
= DIV_ROUND_CLOSEST(clock
->vco
, clock
->p
);
596 #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
598 * Returns whether the given set of divisors are valid for a given refclk with
599 * the given connectors.
602 static bool intel_PLL_is_valid(struct drm_device
*dev
,
603 const intel_limit_t
*limit
,
604 const intel_clock_t
*clock
)
606 if (clock
->n
< limit
->n
.min
|| limit
->n
.max
< clock
->n
)
607 INTELPllInvalid("n out of range\n");
608 if (clock
->p1
< limit
->p1
.min
|| limit
->p1
.max
< clock
->p1
)
609 INTELPllInvalid("p1 out of range\n");
610 if (clock
->m2
< limit
->m2
.min
|| limit
->m2
.max
< clock
->m2
)
611 INTELPllInvalid("m2 out of range\n");
612 if (clock
->m1
< limit
->m1
.min
|| limit
->m1
.max
< clock
->m1
)
613 INTELPllInvalid("m1 out of range\n");
615 if (!IS_PINEVIEW(dev
) && !IS_VALLEYVIEW(dev
) && !IS_BROXTON(dev
))
616 if (clock
->m1
<= clock
->m2
)
617 INTELPllInvalid("m1 <= m2\n");
619 if (!IS_VALLEYVIEW(dev
) && !IS_BROXTON(dev
)) {
620 if (clock
->p
< limit
->p
.min
|| limit
->p
.max
< clock
->p
)
621 INTELPllInvalid("p out of range\n");
622 if (clock
->m
< limit
->m
.min
|| limit
->m
.max
< clock
->m
)
623 INTELPllInvalid("m out of range\n");
626 if (clock
->vco
< limit
->vco
.min
|| limit
->vco
.max
< clock
->vco
)
627 INTELPllInvalid("vco out of range\n");
628 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
629 * connector, etc., rather than just a single range.
631 if (clock
->dot
< limit
->dot
.min
|| limit
->dot
.max
< clock
->dot
)
632 INTELPllInvalid("dot out of range\n");
638 i9xx_find_best_dpll(const intel_limit_t
*limit
,
639 struct intel_crtc_state
*crtc_state
,
640 int target
, int refclk
, intel_clock_t
*match_clock
,
641 intel_clock_t
*best_clock
)
643 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
644 struct drm_device
*dev
= crtc
->base
.dev
;
648 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
650 * For LVDS just rely on its current settings for dual-channel.
651 * We haven't figured out how to reliably set up different
652 * single/dual channel state, if we even can.
654 if (intel_is_dual_link_lvds(dev
))
655 clock
.p2
= limit
->p2
.p2_fast
;
657 clock
.p2
= limit
->p2
.p2_slow
;
659 if (target
< limit
->p2
.dot_limit
)
660 clock
.p2
= limit
->p2
.p2_slow
;
662 clock
.p2
= limit
->p2
.p2_fast
;
665 memset(best_clock
, 0, sizeof(*best_clock
));
667 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
669 for (clock
.m2
= limit
->m2
.min
;
670 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
671 if (clock
.m2
>= clock
.m1
)
673 for (clock
.n
= limit
->n
.min
;
674 clock
.n
<= limit
->n
.max
; clock
.n
++) {
675 for (clock
.p1
= limit
->p1
.min
;
676 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
679 i9xx_clock(refclk
, &clock
);
680 if (!intel_PLL_is_valid(dev
, limit
,
684 clock
.p
!= match_clock
->p
)
687 this_err
= abs(clock
.dot
- target
);
688 if (this_err
< err
) {
697 return (err
!= target
);
701 pnv_find_best_dpll(const intel_limit_t
*limit
,
702 struct intel_crtc_state
*crtc_state
,
703 int target
, int refclk
, intel_clock_t
*match_clock
,
704 intel_clock_t
*best_clock
)
706 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
707 struct drm_device
*dev
= crtc
->base
.dev
;
711 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
713 * For LVDS just rely on its current settings for dual-channel.
714 * We haven't figured out how to reliably set up different
715 * single/dual channel state, if we even can.
717 if (intel_is_dual_link_lvds(dev
))
718 clock
.p2
= limit
->p2
.p2_fast
;
720 clock
.p2
= limit
->p2
.p2_slow
;
722 if (target
< limit
->p2
.dot_limit
)
723 clock
.p2
= limit
->p2
.p2_slow
;
725 clock
.p2
= limit
->p2
.p2_fast
;
728 memset(best_clock
, 0, sizeof(*best_clock
));
730 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
732 for (clock
.m2
= limit
->m2
.min
;
733 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
734 for (clock
.n
= limit
->n
.min
;
735 clock
.n
<= limit
->n
.max
; clock
.n
++) {
736 for (clock
.p1
= limit
->p1
.min
;
737 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
740 pineview_clock(refclk
, &clock
);
741 if (!intel_PLL_is_valid(dev
, limit
,
745 clock
.p
!= match_clock
->p
)
748 this_err
= abs(clock
.dot
- target
);
749 if (this_err
< err
) {
758 return (err
!= target
);
762 g4x_find_best_dpll(const intel_limit_t
*limit
,
763 struct intel_crtc_state
*crtc_state
,
764 int target
, int refclk
, intel_clock_t
*match_clock
,
765 intel_clock_t
*best_clock
)
767 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
768 struct drm_device
*dev
= crtc
->base
.dev
;
772 /* approximately equals target * 0.00585 */
773 int err_most
= (target
>> 8) + (target
>> 9);
776 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
777 if (intel_is_dual_link_lvds(dev
))
778 clock
.p2
= limit
->p2
.p2_fast
;
780 clock
.p2
= limit
->p2
.p2_slow
;
782 if (target
< limit
->p2
.dot_limit
)
783 clock
.p2
= limit
->p2
.p2_slow
;
785 clock
.p2
= limit
->p2
.p2_fast
;
788 memset(best_clock
, 0, sizeof(*best_clock
));
789 max_n
= limit
->n
.max
;
790 /* based on hardware requirement, prefer smaller n to precision */
791 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
792 /* based on hardware requirement, prefere larger m1,m2 */
793 for (clock
.m1
= limit
->m1
.max
;
794 clock
.m1
>= limit
->m1
.min
; clock
.m1
--) {
795 for (clock
.m2
= limit
->m2
.max
;
796 clock
.m2
>= limit
->m2
.min
; clock
.m2
--) {
797 for (clock
.p1
= limit
->p1
.max
;
798 clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
801 i9xx_clock(refclk
, &clock
);
802 if (!intel_PLL_is_valid(dev
, limit
,
806 this_err
= abs(clock
.dot
- target
);
807 if (this_err
< err_most
) {
821 * Check if the calculated PLL configuration is more optimal compared to the
822 * best configuration and error found so far. Return the calculated error.
824 static bool vlv_PLL_is_optimal(struct drm_device
*dev
, int target_freq
,
825 const intel_clock_t
*calculated_clock
,
826 const intel_clock_t
*best_clock
,
827 unsigned int best_error_ppm
,
828 unsigned int *error_ppm
)
831 * For CHV ignore the error and consider only the P value.
832 * Prefer a bigger P value based on HW requirements.
834 if (IS_CHERRYVIEW(dev
)) {
837 return calculated_clock
->p
> best_clock
->p
;
840 if (WARN_ON_ONCE(!target_freq
))
843 *error_ppm
= div_u64(1000000ULL *
844 abs(target_freq
- calculated_clock
->dot
),
847 * Prefer a better P value over a better (smaller) error if the error
848 * is small. Ensure this preference for future configurations too by
849 * setting the error to 0.
851 if (*error_ppm
< 100 && calculated_clock
->p
> best_clock
->p
) {
857 return *error_ppm
+ 10 < best_error_ppm
;
861 vlv_find_best_dpll(const intel_limit_t
*limit
,
862 struct intel_crtc_state
*crtc_state
,
863 int target
, int refclk
, intel_clock_t
*match_clock
,
864 intel_clock_t
*best_clock
)
866 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
867 struct drm_device
*dev
= crtc
->base
.dev
;
869 unsigned int bestppm
= 1000000;
870 /* min update 19.2 MHz */
871 int max_n
= min(limit
->n
.max
, refclk
/ 19200);
874 target
*= 5; /* fast clock */
876 memset(best_clock
, 0, sizeof(*best_clock
));
878 /* based on hardware requirement, prefer smaller n to precision */
879 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
880 for (clock
.p1
= limit
->p1
.max
; clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
881 for (clock
.p2
= limit
->p2
.p2_fast
; clock
.p2
>= limit
->p2
.p2_slow
;
882 clock
.p2
-= clock
.p2
> 10 ? 2 : 1) {
883 clock
.p
= clock
.p1
* clock
.p2
;
884 /* based on hardware requirement, prefer bigger m1,m2 values */
885 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
; clock
.m1
++) {
888 clock
.m2
= DIV_ROUND_CLOSEST(target
* clock
.p
* clock
.n
,
891 vlv_clock(refclk
, &clock
);
893 if (!intel_PLL_is_valid(dev
, limit
,
897 if (!vlv_PLL_is_optimal(dev
, target
,
915 chv_find_best_dpll(const intel_limit_t
*limit
,
916 struct intel_crtc_state
*crtc_state
,
917 int target
, int refclk
, intel_clock_t
*match_clock
,
918 intel_clock_t
*best_clock
)
920 struct intel_crtc
*crtc
= to_intel_crtc(crtc_state
->base
.crtc
);
921 struct drm_device
*dev
= crtc
->base
.dev
;
922 unsigned int best_error_ppm
;
927 memset(best_clock
, 0, sizeof(*best_clock
));
928 best_error_ppm
= 1000000;
931 * Based on hardware doc, the n always set to 1, and m1 always
932 * set to 2. If requires to support 200Mhz refclk, we need to
933 * revisit this because n may not 1 anymore.
935 clock
.n
= 1, clock
.m1
= 2;
936 target
*= 5; /* fast clock */
938 for (clock
.p1
= limit
->p1
.max
; clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
939 for (clock
.p2
= limit
->p2
.p2_fast
;
940 clock
.p2
>= limit
->p2
.p2_slow
;
941 clock
.p2
-= clock
.p2
> 10 ? 2 : 1) {
942 unsigned int error_ppm
;
944 clock
.p
= clock
.p1
* clock
.p2
;
946 m2
= DIV_ROUND_CLOSEST_ULL(((uint64_t)target
* clock
.p
*
947 clock
.n
) << 22, refclk
* clock
.m1
);
949 if (m2
> INT_MAX
/clock
.m1
)
954 chv_clock(refclk
, &clock
);
956 if (!intel_PLL_is_valid(dev
, limit
, &clock
))
959 if (!vlv_PLL_is_optimal(dev
, target
, &clock
, best_clock
,
960 best_error_ppm
, &error_ppm
))
964 best_error_ppm
= error_ppm
;
972 bool bxt_find_best_dpll(struct intel_crtc_state
*crtc_state
, int target_clock
,
973 intel_clock_t
*best_clock
)
975 int refclk
= i9xx_get_refclk(crtc_state
, 0);
977 return chv_find_best_dpll(intel_limit(crtc_state
, refclk
), crtc_state
,
978 target_clock
, refclk
, NULL
, best_clock
);
981 bool intel_crtc_active(struct drm_crtc
*crtc
)
983 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
985 /* Be paranoid as we can arrive here with only partial
986 * state retrieved from the hardware during setup.
988 * We can ditch the adjusted_mode.crtc_clock check as soon
989 * as Haswell has gained clock readout/fastboot support.
991 * We can ditch the crtc->primary->fb check as soon as we can
992 * properly reconstruct framebuffers.
994 * FIXME: The intel_crtc->active here should be switched to
995 * crtc->state->active once we have proper CRTC states wired up
998 return intel_crtc
->active
&& crtc
->primary
->state
->fb
&&
999 intel_crtc
->config
->base
.adjusted_mode
.crtc_clock
;
1002 enum transcoder
intel_pipe_to_cpu_transcoder(struct drm_i915_private
*dev_priv
,
1005 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
1006 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
1008 return intel_crtc
->config
->cpu_transcoder
;
1011 static bool pipe_dsl_stopped(struct drm_device
*dev
, enum pipe pipe
)
1013 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1014 u32 reg
= PIPEDSL(pipe
);
1019 line_mask
= DSL_LINEMASK_GEN2
;
1021 line_mask
= DSL_LINEMASK_GEN3
;
1023 line1
= I915_READ(reg
) & line_mask
;
1025 line2
= I915_READ(reg
) & line_mask
;
1027 return line1
== line2
;
1031 * intel_wait_for_pipe_off - wait for pipe to turn off
1032 * @crtc: crtc whose pipe to wait for
1034 * After disabling a pipe, we can't wait for vblank in the usual way,
1035 * spinning on the vblank interrupt status bit, since we won't actually
1036 * see an interrupt when the pipe is disabled.
1038 * On Gen4 and above:
1039 * wait for the pipe register state bit to turn off
1042 * wait for the display line value to settle (it usually
1043 * ends up stopping at the start of the next frame).
1046 static void intel_wait_for_pipe_off(struct intel_crtc
*crtc
)
1048 struct drm_device
*dev
= crtc
->base
.dev
;
1049 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1050 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
1051 enum pipe pipe
= crtc
->pipe
;
1053 if (INTEL_INFO(dev
)->gen
>= 4) {
1054 int reg
= PIPECONF(cpu_transcoder
);
1056 /* Wait for the Pipe State to go off */
1057 if (wait_for((I915_READ(reg
) & I965_PIPECONF_ACTIVE
) == 0,
1059 WARN(1, "pipe_off wait timed out\n");
1061 /* Wait for the display line to settle */
1062 if (wait_for(pipe_dsl_stopped(dev
, pipe
), 100))
1063 WARN(1, "pipe_off wait timed out\n");
1068 * ibx_digital_port_connected - is the specified port connected?
1069 * @dev_priv: i915 private structure
1070 * @port: the port to test
1072 * Returns true if @port is connected, false otherwise.
1074 bool ibx_digital_port_connected(struct drm_i915_private
*dev_priv
,
1075 struct intel_digital_port
*port
)
1079 if (HAS_PCH_IBX(dev_priv
->dev
)) {
1080 switch (port
->port
) {
1082 bit
= SDE_PORTB_HOTPLUG
;
1085 bit
= SDE_PORTC_HOTPLUG
;
1088 bit
= SDE_PORTD_HOTPLUG
;
1094 switch (port
->port
) {
1096 bit
= SDE_PORTB_HOTPLUG_CPT
;
1099 bit
= SDE_PORTC_HOTPLUG_CPT
;
1102 bit
= SDE_PORTD_HOTPLUG_CPT
;
1109 return I915_READ(SDEISR
) & bit
;
1112 static const char *state_string(bool enabled
)
1114 return enabled
? "on" : "off";
1117 /* Only for pre-ILK configs */
1118 void assert_pll(struct drm_i915_private
*dev_priv
,
1119 enum pipe pipe
, bool state
)
1126 val
= I915_READ(reg
);
1127 cur_state
= !!(val
& DPLL_VCO_ENABLE
);
1128 I915_STATE_WARN(cur_state
!= state
,
1129 "PLL state assertion failure (expected %s, current %s)\n",
1130 state_string(state
), state_string(cur_state
));
1133 /* XXX: the dsi pll is shared between MIPI DSI ports */
1134 static void assert_dsi_pll(struct drm_i915_private
*dev_priv
, bool state
)
1139 mutex_lock(&dev_priv
->dpio_lock
);
1140 val
= vlv_cck_read(dev_priv
, CCK_REG_DSI_PLL_CONTROL
);
1141 mutex_unlock(&dev_priv
->dpio_lock
);
1143 cur_state
= val
& DSI_PLL_VCO_EN
;
1144 I915_STATE_WARN(cur_state
!= state
,
1145 "DSI PLL state assertion failure (expected %s, current %s)\n",
1146 state_string(state
), state_string(cur_state
));
1148 #define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true)
1149 #define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false)
1151 struct intel_shared_dpll
*
1152 intel_crtc_to_shared_dpll(struct intel_crtc
*crtc
)
1154 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
1156 if (crtc
->config
->shared_dpll
< 0)
1159 return &dev_priv
->shared_dplls
[crtc
->config
->shared_dpll
];
1163 void assert_shared_dpll(struct drm_i915_private
*dev_priv
,
1164 struct intel_shared_dpll
*pll
,
1168 struct intel_dpll_hw_state hw_state
;
1171 "asserting DPLL %s with no DPLL\n", state_string(state
)))
1174 cur_state
= pll
->get_hw_state(dev_priv
, pll
, &hw_state
);
1175 I915_STATE_WARN(cur_state
!= state
,
1176 "%s assertion failure (expected %s, current %s)\n",
1177 pll
->name
, state_string(state
), state_string(cur_state
));
1180 static void assert_fdi_tx(struct drm_i915_private
*dev_priv
,
1181 enum pipe pipe
, bool state
)
1186 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1189 if (HAS_DDI(dev_priv
->dev
)) {
1190 /* DDI does not have a specific FDI_TX register */
1191 reg
= TRANS_DDI_FUNC_CTL(cpu_transcoder
);
1192 val
= I915_READ(reg
);
1193 cur_state
= !!(val
& TRANS_DDI_FUNC_ENABLE
);
1195 reg
= FDI_TX_CTL(pipe
);
1196 val
= I915_READ(reg
);
1197 cur_state
= !!(val
& FDI_TX_ENABLE
);
1199 I915_STATE_WARN(cur_state
!= state
,
1200 "FDI TX state assertion failure (expected %s, current %s)\n",
1201 state_string(state
), state_string(cur_state
));
1203 #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
1204 #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
1206 static void assert_fdi_rx(struct drm_i915_private
*dev_priv
,
1207 enum pipe pipe
, bool state
)
1213 reg
= FDI_RX_CTL(pipe
);
1214 val
= I915_READ(reg
);
1215 cur_state
= !!(val
& FDI_RX_ENABLE
);
1216 I915_STATE_WARN(cur_state
!= state
,
1217 "FDI RX state assertion failure (expected %s, current %s)\n",
1218 state_string(state
), state_string(cur_state
));
1220 #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
1221 #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
1223 static void assert_fdi_tx_pll_enabled(struct drm_i915_private
*dev_priv
,
1229 /* ILK FDI PLL is always enabled */
1230 if (INTEL_INFO(dev_priv
->dev
)->gen
== 5)
1233 /* On Haswell, DDI ports are responsible for the FDI PLL setup */
1234 if (HAS_DDI(dev_priv
->dev
))
1237 reg
= FDI_TX_CTL(pipe
);
1238 val
= I915_READ(reg
);
1239 I915_STATE_WARN(!(val
& FDI_TX_PLL_ENABLE
), "FDI TX PLL assertion failure, should be active but is disabled\n");
1242 void assert_fdi_rx_pll(struct drm_i915_private
*dev_priv
,
1243 enum pipe pipe
, bool state
)
1249 reg
= FDI_RX_CTL(pipe
);
1250 val
= I915_READ(reg
);
1251 cur_state
= !!(val
& FDI_RX_PLL_ENABLE
);
1252 I915_STATE_WARN(cur_state
!= state
,
1253 "FDI RX PLL assertion failure (expected %s, current %s)\n",
1254 state_string(state
), state_string(cur_state
));
1257 void assert_panel_unlocked(struct drm_i915_private
*dev_priv
,
1260 struct drm_device
*dev
= dev_priv
->dev
;
1263 enum pipe panel_pipe
= PIPE_A
;
1266 if (WARN_ON(HAS_DDI(dev
)))
1269 if (HAS_PCH_SPLIT(dev
)) {
1272 pp_reg
= PCH_PP_CONTROL
;
1273 port_sel
= I915_READ(PCH_PP_ON_DELAYS
) & PANEL_PORT_SELECT_MASK
;
1275 if (port_sel
== PANEL_PORT_SELECT_LVDS
&&
1276 I915_READ(PCH_LVDS
) & LVDS_PIPEB_SELECT
)
1277 panel_pipe
= PIPE_B
;
1278 /* XXX: else fix for eDP */
1279 } else if (IS_VALLEYVIEW(dev
)) {
1280 /* presumably write lock depends on pipe, not port select */
1281 pp_reg
= VLV_PIPE_PP_CONTROL(pipe
);
1284 pp_reg
= PP_CONTROL
;
1285 if (I915_READ(LVDS
) & LVDS_PIPEB_SELECT
)
1286 panel_pipe
= PIPE_B
;
1289 val
= I915_READ(pp_reg
);
1290 if (!(val
& PANEL_POWER_ON
) ||
1291 ((val
& PANEL_UNLOCK_MASK
) == PANEL_UNLOCK_REGS
))
1294 I915_STATE_WARN(panel_pipe
== pipe
&& locked
,
1295 "panel assertion failure, pipe %c regs locked\n",
1299 static void assert_cursor(struct drm_i915_private
*dev_priv
,
1300 enum pipe pipe
, bool state
)
1302 struct drm_device
*dev
= dev_priv
->dev
;
1305 if (IS_845G(dev
) || IS_I865G(dev
))
1306 cur_state
= I915_READ(_CURACNTR
) & CURSOR_ENABLE
;
1308 cur_state
= I915_READ(CURCNTR(pipe
)) & CURSOR_MODE
;
1310 I915_STATE_WARN(cur_state
!= state
,
1311 "cursor on pipe %c assertion failure (expected %s, current %s)\n",
1312 pipe_name(pipe
), state_string(state
), state_string(cur_state
));
1314 #define assert_cursor_enabled(d, p) assert_cursor(d, p, true)
1315 #define assert_cursor_disabled(d, p) assert_cursor(d, p, false)
1317 void assert_pipe(struct drm_i915_private
*dev_priv
,
1318 enum pipe pipe
, bool state
)
1323 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1326 /* if we need the pipe quirk it must be always on */
1327 if ((pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
1328 (pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
1331 if (!intel_display_power_is_enabled(dev_priv
,
1332 POWER_DOMAIN_TRANSCODER(cpu_transcoder
))) {
1335 reg
= PIPECONF(cpu_transcoder
);
1336 val
= I915_READ(reg
);
1337 cur_state
= !!(val
& PIPECONF_ENABLE
);
1340 I915_STATE_WARN(cur_state
!= state
,
1341 "pipe %c assertion failure (expected %s, current %s)\n",
1342 pipe_name(pipe
), state_string(state
), state_string(cur_state
));
1345 static void assert_plane(struct drm_i915_private
*dev_priv
,
1346 enum plane plane
, bool state
)
1352 reg
= DSPCNTR(plane
);
1353 val
= I915_READ(reg
);
1354 cur_state
= !!(val
& DISPLAY_PLANE_ENABLE
);
1355 I915_STATE_WARN(cur_state
!= state
,
1356 "plane %c assertion failure (expected %s, current %s)\n",
1357 plane_name(plane
), state_string(state
), state_string(cur_state
));
1360 #define assert_plane_enabled(d, p) assert_plane(d, p, true)
1361 #define assert_plane_disabled(d, p) assert_plane(d, p, false)
1363 static void assert_planes_disabled(struct drm_i915_private
*dev_priv
,
1366 struct drm_device
*dev
= dev_priv
->dev
;
1371 /* Primary planes are fixed to pipes on gen4+ */
1372 if (INTEL_INFO(dev
)->gen
>= 4) {
1373 reg
= DSPCNTR(pipe
);
1374 val
= I915_READ(reg
);
1375 I915_STATE_WARN(val
& DISPLAY_PLANE_ENABLE
,
1376 "plane %c assertion failure, should be disabled but not\n",
1381 /* Need to check both planes against the pipe */
1382 for_each_pipe(dev_priv
, i
) {
1384 val
= I915_READ(reg
);
1385 cur_pipe
= (val
& DISPPLANE_SEL_PIPE_MASK
) >>
1386 DISPPLANE_SEL_PIPE_SHIFT
;
1387 I915_STATE_WARN((val
& DISPLAY_PLANE_ENABLE
) && pipe
== cur_pipe
,
1388 "plane %c assertion failure, should be off on pipe %c but is still active\n",
1389 plane_name(i
), pipe_name(pipe
));
1393 static void assert_sprites_disabled(struct drm_i915_private
*dev_priv
,
1396 struct drm_device
*dev
= dev_priv
->dev
;
1400 if (INTEL_INFO(dev
)->gen
>= 9) {
1401 for_each_sprite(dev_priv
, pipe
, sprite
) {
1402 val
= I915_READ(PLANE_CTL(pipe
, sprite
));
1403 I915_STATE_WARN(val
& PLANE_CTL_ENABLE
,
1404 "plane %d assertion failure, should be off on pipe %c but is still active\n",
1405 sprite
, pipe_name(pipe
));
1407 } else if (IS_VALLEYVIEW(dev
)) {
1408 for_each_sprite(dev_priv
, pipe
, sprite
) {
1409 reg
= SPCNTR(pipe
, sprite
);
1410 val
= I915_READ(reg
);
1411 I915_STATE_WARN(val
& SP_ENABLE
,
1412 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1413 sprite_name(pipe
, sprite
), pipe_name(pipe
));
1415 } else if (INTEL_INFO(dev
)->gen
>= 7) {
1417 val
= I915_READ(reg
);
1418 I915_STATE_WARN(val
& SPRITE_ENABLE
,
1419 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1420 plane_name(pipe
), pipe_name(pipe
));
1421 } else if (INTEL_INFO(dev
)->gen
>= 5) {
1422 reg
= DVSCNTR(pipe
);
1423 val
= I915_READ(reg
);
1424 I915_STATE_WARN(val
& DVS_ENABLE
,
1425 "sprite %c assertion failure, should be off on pipe %c but is still active\n",
1426 plane_name(pipe
), pipe_name(pipe
));
1430 static void assert_vblank_disabled(struct drm_crtc
*crtc
)
1432 if (I915_STATE_WARN_ON(drm_crtc_vblank_get(crtc
) == 0))
1433 drm_crtc_vblank_put(crtc
);
1436 static void ibx_assert_pch_refclk_enabled(struct drm_i915_private
*dev_priv
)
1441 I915_STATE_WARN_ON(!(HAS_PCH_IBX(dev_priv
->dev
) || HAS_PCH_CPT(dev_priv
->dev
)));
1443 val
= I915_READ(PCH_DREF_CONTROL
);
1444 enabled
= !!(val
& (DREF_SSC_SOURCE_MASK
| DREF_NONSPREAD_SOURCE_MASK
|
1445 DREF_SUPERSPREAD_SOURCE_MASK
));
1446 I915_STATE_WARN(!enabled
, "PCH refclk assertion failure, should be active but is disabled\n");
1449 static void assert_pch_transcoder_disabled(struct drm_i915_private
*dev_priv
,
1456 reg
= PCH_TRANSCONF(pipe
);
1457 val
= I915_READ(reg
);
1458 enabled
= !!(val
& TRANS_ENABLE
);
1459 I915_STATE_WARN(enabled
,
1460 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1464 static bool dp_pipe_enabled(struct drm_i915_private
*dev_priv
,
1465 enum pipe pipe
, u32 port_sel
, u32 val
)
1467 if ((val
& DP_PORT_EN
) == 0)
1470 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1471 u32 trans_dp_ctl_reg
= TRANS_DP_CTL(pipe
);
1472 u32 trans_dp_ctl
= I915_READ(trans_dp_ctl_reg
);
1473 if ((trans_dp_ctl
& TRANS_DP_PORT_SEL_MASK
) != port_sel
)
1475 } else if (IS_CHERRYVIEW(dev_priv
->dev
)) {
1476 if ((val
& DP_PIPE_MASK_CHV
) != DP_PIPE_SELECT_CHV(pipe
))
1479 if ((val
& DP_PIPE_MASK
) != (pipe
<< 30))
1485 static bool hdmi_pipe_enabled(struct drm_i915_private
*dev_priv
,
1486 enum pipe pipe
, u32 val
)
1488 if ((val
& SDVO_ENABLE
) == 0)
1491 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1492 if ((val
& SDVO_PIPE_SEL_MASK_CPT
) != SDVO_PIPE_SEL_CPT(pipe
))
1494 } else if (IS_CHERRYVIEW(dev_priv
->dev
)) {
1495 if ((val
& SDVO_PIPE_SEL_MASK_CHV
) != SDVO_PIPE_SEL_CHV(pipe
))
1498 if ((val
& SDVO_PIPE_SEL_MASK
) != SDVO_PIPE_SEL(pipe
))
1504 static bool lvds_pipe_enabled(struct drm_i915_private
*dev_priv
,
1505 enum pipe pipe
, u32 val
)
1507 if ((val
& LVDS_PORT_EN
) == 0)
1510 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1511 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1514 if ((val
& LVDS_PIPE_MASK
) != LVDS_PIPE(pipe
))
1520 static bool adpa_pipe_enabled(struct drm_i915_private
*dev_priv
,
1521 enum pipe pipe
, u32 val
)
1523 if ((val
& ADPA_DAC_ENABLE
) == 0)
1525 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1526 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1529 if ((val
& ADPA_PIPE_SELECT_MASK
) != ADPA_PIPE_SELECT(pipe
))
1535 static void assert_pch_dp_disabled(struct drm_i915_private
*dev_priv
,
1536 enum pipe pipe
, int reg
, u32 port_sel
)
1538 u32 val
= I915_READ(reg
);
1539 I915_STATE_WARN(dp_pipe_enabled(dev_priv
, pipe
, port_sel
, val
),
1540 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
1541 reg
, pipe_name(pipe
));
1543 I915_STATE_WARN(HAS_PCH_IBX(dev_priv
->dev
) && (val
& DP_PORT_EN
) == 0
1544 && (val
& DP_PIPEB_SELECT
),
1545 "IBX PCH dp port still using transcoder B\n");
1548 static void assert_pch_hdmi_disabled(struct drm_i915_private
*dev_priv
,
1549 enum pipe pipe
, int reg
)
1551 u32 val
= I915_READ(reg
);
1552 I915_STATE_WARN(hdmi_pipe_enabled(dev_priv
, pipe
, val
),
1553 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
1554 reg
, pipe_name(pipe
));
1556 I915_STATE_WARN(HAS_PCH_IBX(dev_priv
->dev
) && (val
& SDVO_ENABLE
) == 0
1557 && (val
& SDVO_PIPE_B_SELECT
),
1558 "IBX PCH hdmi port still using transcoder B\n");
1561 static void assert_pch_ports_disabled(struct drm_i915_private
*dev_priv
,
1567 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_B
, TRANS_DP_PORT_SEL_B
);
1568 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_C
, TRANS_DP_PORT_SEL_C
);
1569 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_D
, TRANS_DP_PORT_SEL_D
);
1572 val
= I915_READ(reg
);
1573 I915_STATE_WARN(adpa_pipe_enabled(dev_priv
, pipe
, val
),
1574 "PCH VGA enabled on transcoder %c, should be disabled\n",
1578 val
= I915_READ(reg
);
1579 I915_STATE_WARN(lvds_pipe_enabled(dev_priv
, pipe
, val
),
1580 "PCH LVDS enabled on transcoder %c, should be disabled\n",
1583 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIB
);
1584 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIC
);
1585 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMID
);
1588 static void intel_init_dpio(struct drm_device
*dev
)
1590 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1592 if (!IS_VALLEYVIEW(dev
))
1596 * IOSF_PORT_DPIO is used for VLV x2 PHY (DP/HDMI B and C),
1597 * CHV x1 PHY (DP/HDMI D)
1598 * IOSF_PORT_DPIO_2 is used for CHV x2 PHY (DP/HDMI B and C)
1600 if (IS_CHERRYVIEW(dev
)) {
1601 DPIO_PHY_IOSF_PORT(DPIO_PHY0
) = IOSF_PORT_DPIO_2
;
1602 DPIO_PHY_IOSF_PORT(DPIO_PHY1
) = IOSF_PORT_DPIO
;
1604 DPIO_PHY_IOSF_PORT(DPIO_PHY0
) = IOSF_PORT_DPIO
;
1608 static void vlv_enable_pll(struct intel_crtc
*crtc
,
1609 const struct intel_crtc_state
*pipe_config
)
1611 struct drm_device
*dev
= crtc
->base
.dev
;
1612 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1613 int reg
= DPLL(crtc
->pipe
);
1614 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
1616 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1618 /* No really, not for ILK+ */
1619 BUG_ON(!IS_VALLEYVIEW(dev_priv
->dev
));
1621 /* PLL is protected by panel, make sure we can write it */
1622 if (IS_MOBILE(dev_priv
->dev
))
1623 assert_panel_unlocked(dev_priv
, crtc
->pipe
);
1625 I915_WRITE(reg
, dpll
);
1629 if (wait_for(((I915_READ(reg
) & DPLL_LOCK_VLV
) == DPLL_LOCK_VLV
), 1))
1630 DRM_ERROR("DPLL %d failed to lock\n", crtc
->pipe
);
1632 I915_WRITE(DPLL_MD(crtc
->pipe
), pipe_config
->dpll_hw_state
.dpll_md
);
1633 POSTING_READ(DPLL_MD(crtc
->pipe
));
1635 /* We do this three times for luck */
1636 I915_WRITE(reg
, dpll
);
1638 udelay(150); /* wait for warmup */
1639 I915_WRITE(reg
, dpll
);
1641 udelay(150); /* wait for warmup */
1642 I915_WRITE(reg
, dpll
);
1644 udelay(150); /* wait for warmup */
1647 static void chv_enable_pll(struct intel_crtc
*crtc
,
1648 const struct intel_crtc_state
*pipe_config
)
1650 struct drm_device
*dev
= crtc
->base
.dev
;
1651 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1652 int pipe
= crtc
->pipe
;
1653 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
1656 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1658 BUG_ON(!IS_CHERRYVIEW(dev_priv
->dev
));
1660 mutex_lock(&dev_priv
->dpio_lock
);
1662 /* Enable back the 10bit clock to display controller */
1663 tmp
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
));
1664 tmp
|= DPIO_DCLKP_EN
;
1665 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
), tmp
);
1668 * Need to wait > 100ns between dclkp clock enable bit and PLL enable.
1673 I915_WRITE(DPLL(pipe
), pipe_config
->dpll_hw_state
.dpll
);
1675 /* Check PLL is locked */
1676 if (wait_for(((I915_READ(DPLL(pipe
)) & DPLL_LOCK_VLV
) == DPLL_LOCK_VLV
), 1))
1677 DRM_ERROR("PLL %d failed to lock\n", pipe
);
1679 /* not sure when this should be written */
1680 I915_WRITE(DPLL_MD(pipe
), pipe_config
->dpll_hw_state
.dpll_md
);
1681 POSTING_READ(DPLL_MD(pipe
));
1683 mutex_unlock(&dev_priv
->dpio_lock
);
1686 static int intel_num_dvo_pipes(struct drm_device
*dev
)
1688 struct intel_crtc
*crtc
;
1691 for_each_intel_crtc(dev
, crtc
)
1692 count
+= crtc
->active
&&
1693 intel_pipe_has_type(crtc
, INTEL_OUTPUT_DVO
);
1698 static void i9xx_enable_pll(struct intel_crtc
*crtc
)
1700 struct drm_device
*dev
= crtc
->base
.dev
;
1701 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1702 int reg
= DPLL(crtc
->pipe
);
1703 u32 dpll
= crtc
->config
->dpll_hw_state
.dpll
;
1705 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
1707 /* No really, not for ILK+ */
1708 BUG_ON(INTEL_INFO(dev
)->gen
>= 5);
1710 /* PLL is protected by panel, make sure we can write it */
1711 if (IS_MOBILE(dev
) && !IS_I830(dev
))
1712 assert_panel_unlocked(dev_priv
, crtc
->pipe
);
1714 /* Enable DVO 2x clock on both PLLs if necessary */
1715 if (IS_I830(dev
) && intel_num_dvo_pipes(dev
) > 0) {
1717 * It appears to be important that we don't enable this
1718 * for the current pipe before otherwise configuring the
1719 * PLL. No idea how this should be handled if multiple
1720 * DVO outputs are enabled simultaneosly.
1722 dpll
|= DPLL_DVO_2X_MODE
;
1723 I915_WRITE(DPLL(!crtc
->pipe
),
1724 I915_READ(DPLL(!crtc
->pipe
)) | DPLL_DVO_2X_MODE
);
1727 /* Wait for the clocks to stabilize. */
1731 if (INTEL_INFO(dev
)->gen
>= 4) {
1732 I915_WRITE(DPLL_MD(crtc
->pipe
),
1733 crtc
->config
->dpll_hw_state
.dpll_md
);
1735 /* The pixel multiplier can only be updated once the
1736 * DPLL is enabled and the clocks are stable.
1738 * So write it again.
1740 I915_WRITE(reg
, dpll
);
1743 /* We do this three times for luck */
1744 I915_WRITE(reg
, dpll
);
1746 udelay(150); /* wait for warmup */
1747 I915_WRITE(reg
, dpll
);
1749 udelay(150); /* wait for warmup */
1750 I915_WRITE(reg
, dpll
);
1752 udelay(150); /* wait for warmup */
1756 * i9xx_disable_pll - disable a PLL
1757 * @dev_priv: i915 private structure
1758 * @pipe: pipe PLL to disable
1760 * Disable the PLL for @pipe, making sure the pipe is off first.
1762 * Note! This is for pre-ILK only.
1764 static void i9xx_disable_pll(struct intel_crtc
*crtc
)
1766 struct drm_device
*dev
= crtc
->base
.dev
;
1767 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1768 enum pipe pipe
= crtc
->pipe
;
1770 /* Disable DVO 2x clock on both PLLs if necessary */
1772 intel_pipe_has_type(crtc
, INTEL_OUTPUT_DVO
) &&
1773 intel_num_dvo_pipes(dev
) == 1) {
1774 I915_WRITE(DPLL(PIPE_B
),
1775 I915_READ(DPLL(PIPE_B
)) & ~DPLL_DVO_2X_MODE
);
1776 I915_WRITE(DPLL(PIPE_A
),
1777 I915_READ(DPLL(PIPE_A
)) & ~DPLL_DVO_2X_MODE
);
1780 /* Don't disable pipe or pipe PLLs if needed */
1781 if ((pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
1782 (pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
1785 /* Make sure the pipe isn't still relying on us */
1786 assert_pipe_disabled(dev_priv
, pipe
);
1788 I915_WRITE(DPLL(pipe
), 0);
1789 POSTING_READ(DPLL(pipe
));
1792 static void vlv_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1796 /* Make sure the pipe isn't still relying on us */
1797 assert_pipe_disabled(dev_priv
, pipe
);
1800 * Leave integrated clock source and reference clock enabled for pipe B.
1801 * The latter is needed for VGA hotplug / manual detection.
1804 val
= DPLL_INTEGRATED_CRI_CLK_VLV
| DPLL_REFA_CLK_ENABLE_VLV
;
1805 I915_WRITE(DPLL(pipe
), val
);
1806 POSTING_READ(DPLL(pipe
));
1810 static void chv_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1812 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
1815 /* Make sure the pipe isn't still relying on us */
1816 assert_pipe_disabled(dev_priv
, pipe
);
1818 /* Set PLL en = 0 */
1819 val
= DPLL_SSC_REF_CLOCK_CHV
| DPLL_REFA_CLK_ENABLE_VLV
;
1821 val
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
1822 I915_WRITE(DPLL(pipe
), val
);
1823 POSTING_READ(DPLL(pipe
));
1825 mutex_lock(&dev_priv
->dpio_lock
);
1827 /* Disable 10bit clock to display controller */
1828 val
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
));
1829 val
&= ~DPIO_DCLKP_EN
;
1830 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
), val
);
1832 /* disable left/right clock distribution */
1833 if (pipe
!= PIPE_B
) {
1834 val
= vlv_dpio_read(dev_priv
, pipe
, _CHV_CMN_DW5_CH0
);
1835 val
&= ~(CHV_BUFLEFTENA1_MASK
| CHV_BUFRIGHTENA1_MASK
);
1836 vlv_dpio_write(dev_priv
, pipe
, _CHV_CMN_DW5_CH0
, val
);
1838 val
= vlv_dpio_read(dev_priv
, pipe
, _CHV_CMN_DW1_CH1
);
1839 val
&= ~(CHV_BUFLEFTENA2_MASK
| CHV_BUFRIGHTENA2_MASK
);
1840 vlv_dpio_write(dev_priv
, pipe
, _CHV_CMN_DW1_CH1
, val
);
1843 mutex_unlock(&dev_priv
->dpio_lock
);
1846 void vlv_wait_port_ready(struct drm_i915_private
*dev_priv
,
1847 struct intel_digital_port
*dport
)
1852 switch (dport
->port
) {
1854 port_mask
= DPLL_PORTB_READY_MASK
;
1858 port_mask
= DPLL_PORTC_READY_MASK
;
1862 port_mask
= DPLL_PORTD_READY_MASK
;
1863 dpll_reg
= DPIO_PHY_STATUS
;
1869 if (wait_for((I915_READ(dpll_reg
) & port_mask
) == 0, 1000))
1870 WARN(1, "timed out waiting for port %c ready: 0x%08x\n",
1871 port_name(dport
->port
), I915_READ(dpll_reg
));
1874 static void intel_prepare_shared_dpll(struct intel_crtc
*crtc
)
1876 struct drm_device
*dev
= crtc
->base
.dev
;
1877 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1878 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
1880 if (WARN_ON(pll
== NULL
))
1883 WARN_ON(!pll
->config
.crtc_mask
);
1884 if (pll
->active
== 0) {
1885 DRM_DEBUG_DRIVER("setting up %s\n", pll
->name
);
1887 assert_shared_dpll_disabled(dev_priv
, pll
);
1889 pll
->mode_set(dev_priv
, pll
);
1894 * intel_enable_shared_dpll - enable PCH PLL
1895 * @dev_priv: i915 private structure
1896 * @pipe: pipe PLL to enable
1898 * The PCH PLL needs to be enabled before the PCH transcoder, since it
1899 * drives the transcoder clock.
1901 static void intel_enable_shared_dpll(struct intel_crtc
*crtc
)
1903 struct drm_device
*dev
= crtc
->base
.dev
;
1904 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1905 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
1907 if (WARN_ON(pll
== NULL
))
1910 if (WARN_ON(pll
->config
.crtc_mask
== 0))
1913 DRM_DEBUG_KMS("enable %s (active %d, on? %d) for crtc %d\n",
1914 pll
->name
, pll
->active
, pll
->on
,
1915 crtc
->base
.base
.id
);
1917 if (pll
->active
++) {
1919 assert_shared_dpll_enabled(dev_priv
, pll
);
1924 intel_display_power_get(dev_priv
, POWER_DOMAIN_PLLS
);
1926 DRM_DEBUG_KMS("enabling %s\n", pll
->name
);
1927 pll
->enable(dev_priv
, pll
);
1931 static void intel_disable_shared_dpll(struct intel_crtc
*crtc
)
1933 struct drm_device
*dev
= crtc
->base
.dev
;
1934 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1935 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
1937 /* PCH only available on ILK+ */
1938 BUG_ON(INTEL_INFO(dev
)->gen
< 5);
1939 if (WARN_ON(pll
== NULL
))
1942 if (WARN_ON(pll
->config
.crtc_mask
== 0))
1945 DRM_DEBUG_KMS("disable %s (active %d, on? %d) for crtc %d\n",
1946 pll
->name
, pll
->active
, pll
->on
,
1947 crtc
->base
.base
.id
);
1949 if (WARN_ON(pll
->active
== 0)) {
1950 assert_shared_dpll_disabled(dev_priv
, pll
);
1954 assert_shared_dpll_enabled(dev_priv
, pll
);
1959 DRM_DEBUG_KMS("disabling %s\n", pll
->name
);
1960 pll
->disable(dev_priv
, pll
);
1963 intel_display_power_put(dev_priv
, POWER_DOMAIN_PLLS
);
1966 static void ironlake_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1969 struct drm_device
*dev
= dev_priv
->dev
;
1970 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
1971 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
1972 uint32_t reg
, val
, pipeconf_val
;
1974 /* PCH only available on ILK+ */
1975 BUG_ON(!HAS_PCH_SPLIT(dev
));
1977 /* Make sure PCH DPLL is enabled */
1978 assert_shared_dpll_enabled(dev_priv
,
1979 intel_crtc_to_shared_dpll(intel_crtc
));
1981 /* FDI must be feeding us bits for PCH ports */
1982 assert_fdi_tx_enabled(dev_priv
, pipe
);
1983 assert_fdi_rx_enabled(dev_priv
, pipe
);
1985 if (HAS_PCH_CPT(dev
)) {
1986 /* Workaround: Set the timing override bit before enabling the
1987 * pch transcoder. */
1988 reg
= TRANS_CHICKEN2(pipe
);
1989 val
= I915_READ(reg
);
1990 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
1991 I915_WRITE(reg
, val
);
1994 reg
= PCH_TRANSCONF(pipe
);
1995 val
= I915_READ(reg
);
1996 pipeconf_val
= I915_READ(PIPECONF(pipe
));
1998 if (HAS_PCH_IBX(dev_priv
->dev
)) {
2000 * make the BPC in transcoder be consistent with
2001 * that in pipeconf reg.
2003 val
&= ~PIPECONF_BPC_MASK
;
2004 val
|= pipeconf_val
& PIPECONF_BPC_MASK
;
2007 val
&= ~TRANS_INTERLACE_MASK
;
2008 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK
) == PIPECONF_INTERLACED_ILK
)
2009 if (HAS_PCH_IBX(dev_priv
->dev
) &&
2010 intel_pipe_has_type(intel_crtc
, INTEL_OUTPUT_SDVO
))
2011 val
|= TRANS_LEGACY_INTERLACED_ILK
;
2013 val
|= TRANS_INTERLACED
;
2015 val
|= TRANS_PROGRESSIVE
;
2017 I915_WRITE(reg
, val
| TRANS_ENABLE
);
2018 if (wait_for(I915_READ(reg
) & TRANS_STATE_ENABLE
, 100))
2019 DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe
));
2022 static void lpt_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
2023 enum transcoder cpu_transcoder
)
2025 u32 val
, pipeconf_val
;
2027 /* PCH only available on ILK+ */
2028 BUG_ON(!HAS_PCH_SPLIT(dev_priv
->dev
));
2030 /* FDI must be feeding us bits for PCH ports */
2031 assert_fdi_tx_enabled(dev_priv
, (enum pipe
) cpu_transcoder
);
2032 assert_fdi_rx_enabled(dev_priv
, TRANSCODER_A
);
2034 /* Workaround: set timing override bit. */
2035 val
= I915_READ(_TRANSA_CHICKEN2
);
2036 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
2037 I915_WRITE(_TRANSA_CHICKEN2
, val
);
2040 pipeconf_val
= I915_READ(PIPECONF(cpu_transcoder
));
2042 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK_HSW
) ==
2043 PIPECONF_INTERLACED_ILK
)
2044 val
|= TRANS_INTERLACED
;
2046 val
|= TRANS_PROGRESSIVE
;
2048 I915_WRITE(LPT_TRANSCONF
, val
);
2049 if (wait_for(I915_READ(LPT_TRANSCONF
) & TRANS_STATE_ENABLE
, 100))
2050 DRM_ERROR("Failed to enable PCH transcoder\n");
2053 static void ironlake_disable_pch_transcoder(struct drm_i915_private
*dev_priv
,
2056 struct drm_device
*dev
= dev_priv
->dev
;
2059 /* FDI relies on the transcoder */
2060 assert_fdi_tx_disabled(dev_priv
, pipe
);
2061 assert_fdi_rx_disabled(dev_priv
, pipe
);
2063 /* Ports must be off as well */
2064 assert_pch_ports_disabled(dev_priv
, pipe
);
2066 reg
= PCH_TRANSCONF(pipe
);
2067 val
= I915_READ(reg
);
2068 val
&= ~TRANS_ENABLE
;
2069 I915_WRITE(reg
, val
);
2070 /* wait for PCH transcoder off, transcoder state */
2071 if (wait_for((I915_READ(reg
) & TRANS_STATE_ENABLE
) == 0, 50))
2072 DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe
));
2074 if (!HAS_PCH_IBX(dev
)) {
2075 /* Workaround: Clear the timing override chicken bit again. */
2076 reg
= TRANS_CHICKEN2(pipe
);
2077 val
= I915_READ(reg
);
2078 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
2079 I915_WRITE(reg
, val
);
2083 static void lpt_disable_pch_transcoder(struct drm_i915_private
*dev_priv
)
2087 val
= I915_READ(LPT_TRANSCONF
);
2088 val
&= ~TRANS_ENABLE
;
2089 I915_WRITE(LPT_TRANSCONF
, val
);
2090 /* wait for PCH transcoder off, transcoder state */
2091 if (wait_for((I915_READ(LPT_TRANSCONF
) & TRANS_STATE_ENABLE
) == 0, 50))
2092 DRM_ERROR("Failed to disable PCH transcoder\n");
2094 /* Workaround: clear timing override bit. */
2095 val
= I915_READ(_TRANSA_CHICKEN2
);
2096 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
2097 I915_WRITE(_TRANSA_CHICKEN2
, val
);
2101 * intel_enable_pipe - enable a pipe, asserting requirements
2102 * @crtc: crtc responsible for the pipe
2104 * Enable @crtc's pipe, making sure that various hardware specific requirements
2105 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
2107 static void intel_enable_pipe(struct intel_crtc
*crtc
)
2109 struct drm_device
*dev
= crtc
->base
.dev
;
2110 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2111 enum pipe pipe
= crtc
->pipe
;
2112 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
2114 enum pipe pch_transcoder
;
2118 assert_planes_disabled(dev_priv
, pipe
);
2119 assert_cursor_disabled(dev_priv
, pipe
);
2120 assert_sprites_disabled(dev_priv
, pipe
);
2122 if (HAS_PCH_LPT(dev_priv
->dev
))
2123 pch_transcoder
= TRANSCODER_A
;
2125 pch_transcoder
= pipe
;
2128 * A pipe without a PLL won't actually be able to drive bits from
2129 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
2132 if (HAS_GMCH_DISPLAY(dev_priv
->dev
))
2133 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DSI
))
2134 assert_dsi_pll_enabled(dev_priv
);
2136 assert_pll_enabled(dev_priv
, pipe
);
2138 if (crtc
->config
->has_pch_encoder
) {
2139 /* if driving the PCH, we need FDI enabled */
2140 assert_fdi_rx_pll_enabled(dev_priv
, pch_transcoder
);
2141 assert_fdi_tx_pll_enabled(dev_priv
,
2142 (enum pipe
) cpu_transcoder
);
2144 /* FIXME: assert CPU port conditions for SNB+ */
2147 reg
= PIPECONF(cpu_transcoder
);
2148 val
= I915_READ(reg
);
2149 if (val
& PIPECONF_ENABLE
) {
2150 WARN_ON(!((pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
2151 (pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
)));
2155 I915_WRITE(reg
, val
| PIPECONF_ENABLE
);
2160 * intel_disable_pipe - disable a pipe, asserting requirements
2161 * @crtc: crtc whose pipes is to be disabled
2163 * Disable the pipe of @crtc, making sure that various hardware
2164 * specific requirements are met, if applicable, e.g. plane
2165 * disabled, panel fitter off, etc.
2167 * Will wait until the pipe has shut down before returning.
2169 static void intel_disable_pipe(struct intel_crtc
*crtc
)
2171 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
2172 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
2173 enum pipe pipe
= crtc
->pipe
;
2178 * Make sure planes won't keep trying to pump pixels to us,
2179 * or we might hang the display.
2181 assert_planes_disabled(dev_priv
, pipe
);
2182 assert_cursor_disabled(dev_priv
, pipe
);
2183 assert_sprites_disabled(dev_priv
, pipe
);
2185 reg
= PIPECONF(cpu_transcoder
);
2186 val
= I915_READ(reg
);
2187 if ((val
& PIPECONF_ENABLE
) == 0)
2191 * Double wide has implications for planes
2192 * so best keep it disabled when not needed.
2194 if (crtc
->config
->double_wide
)
2195 val
&= ~PIPECONF_DOUBLE_WIDE
;
2197 /* Don't disable pipe or pipe PLLs if needed */
2198 if (!(pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) &&
2199 !(pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
2200 val
&= ~PIPECONF_ENABLE
;
2202 I915_WRITE(reg
, val
);
2203 if ((val
& PIPECONF_ENABLE
) == 0)
2204 intel_wait_for_pipe_off(crtc
);
2208 * Plane regs are double buffered, going from enabled->disabled needs a
2209 * trigger in order to latch. The display address reg provides this.
2211 void intel_flush_primary_plane(struct drm_i915_private
*dev_priv
,
2214 struct drm_device
*dev
= dev_priv
->dev
;
2215 u32 reg
= INTEL_INFO(dev
)->gen
>= 4 ? DSPSURF(plane
) : DSPADDR(plane
);
2217 I915_WRITE(reg
, I915_READ(reg
));
2222 * intel_enable_primary_hw_plane - enable the primary plane on a given pipe
2223 * @plane: plane to be enabled
2224 * @crtc: crtc for the plane
2226 * Enable @plane on @crtc, making sure that the pipe is running first.
2228 static void intel_enable_primary_hw_plane(struct drm_plane
*plane
,
2229 struct drm_crtc
*crtc
)
2231 struct drm_device
*dev
= plane
->dev
;
2232 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2233 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2235 /* If the pipe isn't enabled, we can't pump pixels and may hang */
2236 assert_pipe_enabled(dev_priv
, intel_crtc
->pipe
);
2237 to_intel_plane_state(plane
->state
)->visible
= true;
2239 dev_priv
->display
.update_primary_plane(crtc
, plane
->fb
,
2243 static bool need_vtd_wa(struct drm_device
*dev
)
2245 #ifdef CONFIG_INTEL_IOMMU
2246 if (INTEL_INFO(dev
)->gen
>= 6 && intel_iommu_gfx_mapped
)
2253 intel_tile_height(struct drm_device
*dev
, uint32_t pixel_format
,
2254 uint64_t fb_format_modifier
)
2256 unsigned int tile_height
;
2257 uint32_t pixel_bytes
;
2259 switch (fb_format_modifier
) {
2260 case DRM_FORMAT_MOD_NONE
:
2263 case I915_FORMAT_MOD_X_TILED
:
2264 tile_height
= IS_GEN2(dev
) ? 16 : 8;
2266 case I915_FORMAT_MOD_Y_TILED
:
2269 case I915_FORMAT_MOD_Yf_TILED
:
2270 pixel_bytes
= drm_format_plane_cpp(pixel_format
, 0);
2271 switch (pixel_bytes
) {
2285 "128-bit pixels are not supported for display!");
2291 MISSING_CASE(fb_format_modifier
);
2300 intel_fb_align_height(struct drm_device
*dev
, unsigned int height
,
2301 uint32_t pixel_format
, uint64_t fb_format_modifier
)
2303 return ALIGN(height
, intel_tile_height(dev
, pixel_format
,
2304 fb_format_modifier
));
2308 intel_fill_fb_ggtt_view(struct i915_ggtt_view
*view
, struct drm_framebuffer
*fb
,
2309 const struct drm_plane_state
*plane_state
)
2311 struct intel_rotation_info
*info
= &view
->rotation_info
;
2313 *view
= i915_ggtt_view_normal
;
2318 if (!intel_rotation_90_or_270(plane_state
->rotation
))
2321 *view
= i915_ggtt_view_rotated
;
2323 info
->height
= fb
->height
;
2324 info
->pixel_format
= fb
->pixel_format
;
2325 info
->pitch
= fb
->pitches
[0];
2326 info
->fb_modifier
= fb
->modifier
[0];
2332 intel_pin_and_fence_fb_obj(struct drm_plane
*plane
,
2333 struct drm_framebuffer
*fb
,
2334 const struct drm_plane_state
*plane_state
,
2335 struct intel_engine_cs
*pipelined
)
2337 struct drm_device
*dev
= fb
->dev
;
2338 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2339 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
2340 struct i915_ggtt_view view
;
2344 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
2346 switch (fb
->modifier
[0]) {
2347 case DRM_FORMAT_MOD_NONE
:
2348 if (INTEL_INFO(dev
)->gen
>= 9)
2349 alignment
= 256 * 1024;
2350 else if (IS_BROADWATER(dev
) || IS_CRESTLINE(dev
))
2351 alignment
= 128 * 1024;
2352 else if (INTEL_INFO(dev
)->gen
>= 4)
2353 alignment
= 4 * 1024;
2355 alignment
= 64 * 1024;
2357 case I915_FORMAT_MOD_X_TILED
:
2358 if (INTEL_INFO(dev
)->gen
>= 9)
2359 alignment
= 256 * 1024;
2361 /* pin() will align the object as required by fence */
2365 case I915_FORMAT_MOD_Y_TILED
:
2366 case I915_FORMAT_MOD_Yf_TILED
:
2367 if (WARN_ONCE(INTEL_INFO(dev
)->gen
< 9,
2368 "Y tiling bo slipped through, driver bug!\n"))
2370 alignment
= 1 * 1024 * 1024;
2373 MISSING_CASE(fb
->modifier
[0]);
2377 ret
= intel_fill_fb_ggtt_view(&view
, fb
, plane_state
);
2381 /* Note that the w/a also requires 64 PTE of padding following the
2382 * bo. We currently fill all unused PTE with the shadow page and so
2383 * we should always have valid PTE following the scanout preventing
2386 if (need_vtd_wa(dev
) && alignment
< 256 * 1024)
2387 alignment
= 256 * 1024;
2390 * Global gtt pte registers are special registers which actually forward
2391 * writes to a chunk of system memory. Which means that there is no risk
2392 * that the register values disappear as soon as we call
2393 * intel_runtime_pm_put(), so it is correct to wrap only the
2394 * pin/unpin/fence and not more.
2396 intel_runtime_pm_get(dev_priv
);
2398 dev_priv
->mm
.interruptible
= false;
2399 ret
= i915_gem_object_pin_to_display_plane(obj
, alignment
, pipelined
,
2402 goto err_interruptible
;
2404 /* Install a fence for tiled scan-out. Pre-i965 always needs a
2405 * fence, whereas 965+ only requires a fence if using
2406 * framebuffer compression. For simplicity, we always install
2407 * a fence as the cost is not that onerous.
2409 ret
= i915_gem_object_get_fence(obj
);
2413 i915_gem_object_pin_fence(obj
);
2415 dev_priv
->mm
.interruptible
= true;
2416 intel_runtime_pm_put(dev_priv
);
2420 i915_gem_object_unpin_from_display_plane(obj
, &view
);
2422 dev_priv
->mm
.interruptible
= true;
2423 intel_runtime_pm_put(dev_priv
);
2427 static void intel_unpin_fb_obj(struct drm_framebuffer
*fb
,
2428 const struct drm_plane_state
*plane_state
)
2430 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
2431 struct i915_ggtt_view view
;
2434 WARN_ON(!mutex_is_locked(&obj
->base
.dev
->struct_mutex
));
2436 ret
= intel_fill_fb_ggtt_view(&view
, fb
, plane_state
);
2437 WARN_ONCE(ret
, "Couldn't get view from plane state!");
2439 i915_gem_object_unpin_fence(obj
);
2440 i915_gem_object_unpin_from_display_plane(obj
, &view
);
2443 /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel
2444 * is assumed to be a power-of-two. */
2445 unsigned long intel_gen4_compute_page_offset(int *x
, int *y
,
2446 unsigned int tiling_mode
,
2450 if (tiling_mode
!= I915_TILING_NONE
) {
2451 unsigned int tile_rows
, tiles
;
2456 tiles
= *x
/ (512/cpp
);
2459 return tile_rows
* pitch
* 8 + tiles
* 4096;
2461 unsigned int offset
;
2463 offset
= *y
* pitch
+ *x
* cpp
;
2465 *x
= (offset
& 4095) / cpp
;
2466 return offset
& -4096;
2470 static int i9xx_format_to_fourcc(int format
)
2473 case DISPPLANE_8BPP
:
2474 return DRM_FORMAT_C8
;
2475 case DISPPLANE_BGRX555
:
2476 return DRM_FORMAT_XRGB1555
;
2477 case DISPPLANE_BGRX565
:
2478 return DRM_FORMAT_RGB565
;
2480 case DISPPLANE_BGRX888
:
2481 return DRM_FORMAT_XRGB8888
;
2482 case DISPPLANE_RGBX888
:
2483 return DRM_FORMAT_XBGR8888
;
2484 case DISPPLANE_BGRX101010
:
2485 return DRM_FORMAT_XRGB2101010
;
2486 case DISPPLANE_RGBX101010
:
2487 return DRM_FORMAT_XBGR2101010
;
2491 static int skl_format_to_fourcc(int format
, bool rgb_order
, bool alpha
)
2494 case PLANE_CTL_FORMAT_RGB_565
:
2495 return DRM_FORMAT_RGB565
;
2497 case PLANE_CTL_FORMAT_XRGB_8888
:
2500 return DRM_FORMAT_ABGR8888
;
2502 return DRM_FORMAT_XBGR8888
;
2505 return DRM_FORMAT_ARGB8888
;
2507 return DRM_FORMAT_XRGB8888
;
2509 case PLANE_CTL_FORMAT_XRGB_2101010
:
2511 return DRM_FORMAT_XBGR2101010
;
2513 return DRM_FORMAT_XRGB2101010
;
2518 intel_alloc_initial_plane_obj(struct intel_crtc
*crtc
,
2519 struct intel_initial_plane_config
*plane_config
)
2521 struct drm_device
*dev
= crtc
->base
.dev
;
2522 struct drm_i915_gem_object
*obj
= NULL
;
2523 struct drm_mode_fb_cmd2 mode_cmd
= { 0 };
2524 struct drm_framebuffer
*fb
= &plane_config
->fb
->base
;
2525 u32 base_aligned
= round_down(plane_config
->base
, PAGE_SIZE
);
2526 u32 size_aligned
= round_up(plane_config
->base
+ plane_config
->size
,
2529 size_aligned
-= base_aligned
;
2531 if (plane_config
->size
== 0)
2534 obj
= i915_gem_object_create_stolen_for_preallocated(dev
,
2541 obj
->tiling_mode
= plane_config
->tiling
;
2542 if (obj
->tiling_mode
== I915_TILING_X
)
2543 obj
->stride
= fb
->pitches
[0];
2545 mode_cmd
.pixel_format
= fb
->pixel_format
;
2546 mode_cmd
.width
= fb
->width
;
2547 mode_cmd
.height
= fb
->height
;
2548 mode_cmd
.pitches
[0] = fb
->pitches
[0];
2549 mode_cmd
.modifier
[0] = fb
->modifier
[0];
2550 mode_cmd
.flags
= DRM_MODE_FB_MODIFIERS
;
2552 mutex_lock(&dev
->struct_mutex
);
2553 if (intel_framebuffer_init(dev
, to_intel_framebuffer(fb
),
2555 DRM_DEBUG_KMS("intel fb init failed\n");
2558 mutex_unlock(&dev
->struct_mutex
);
2560 DRM_DEBUG_KMS("initial plane fb obj %p\n", obj
);
2564 drm_gem_object_unreference(&obj
->base
);
2565 mutex_unlock(&dev
->struct_mutex
);
2569 /* Update plane->state->fb to match plane->fb after driver-internal updates */
2571 update_state_fb(struct drm_plane
*plane
)
2573 if (plane
->fb
== plane
->state
->fb
)
2576 if (plane
->state
->fb
)
2577 drm_framebuffer_unreference(plane
->state
->fb
);
2578 plane
->state
->fb
= plane
->fb
;
2579 if (plane
->state
->fb
)
2580 drm_framebuffer_reference(plane
->state
->fb
);
2584 intel_find_initial_plane_obj(struct intel_crtc
*intel_crtc
,
2585 struct intel_initial_plane_config
*plane_config
)
2587 struct drm_device
*dev
= intel_crtc
->base
.dev
;
2588 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2590 struct intel_crtc
*i
;
2591 struct drm_i915_gem_object
*obj
;
2592 struct drm_plane
*primary
= intel_crtc
->base
.primary
;
2593 struct drm_framebuffer
*fb
;
2595 if (!plane_config
->fb
)
2598 if (intel_alloc_initial_plane_obj(intel_crtc
, plane_config
)) {
2599 fb
= &plane_config
->fb
->base
;
2603 kfree(plane_config
->fb
);
2606 * Failed to alloc the obj, check to see if we should share
2607 * an fb with another CRTC instead
2609 for_each_crtc(dev
, c
) {
2610 i
= to_intel_crtc(c
);
2612 if (c
== &intel_crtc
->base
)
2618 fb
= c
->primary
->fb
;
2622 obj
= intel_fb_obj(fb
);
2623 if (i915_gem_obj_ggtt_offset(obj
) == plane_config
->base
) {
2624 drm_framebuffer_reference(fb
);
2632 obj
= intel_fb_obj(fb
);
2633 if (obj
->tiling_mode
!= I915_TILING_NONE
)
2634 dev_priv
->preserve_bios_swizzle
= true;
2637 primary
->state
->crtc
= &intel_crtc
->base
;
2638 primary
->crtc
= &intel_crtc
->base
;
2639 update_state_fb(primary
);
2640 obj
->frontbuffer_bits
|= INTEL_FRONTBUFFER_PRIMARY(intel_crtc
->pipe
);
2643 static void i9xx_update_primary_plane(struct drm_crtc
*crtc
,
2644 struct drm_framebuffer
*fb
,
2647 struct drm_device
*dev
= crtc
->dev
;
2648 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2649 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2650 struct drm_plane
*primary
= crtc
->primary
;
2651 bool visible
= to_intel_plane_state(primary
->state
)->visible
;
2652 struct drm_i915_gem_object
*obj
;
2653 int plane
= intel_crtc
->plane
;
2654 unsigned long linear_offset
;
2656 u32 reg
= DSPCNTR(plane
);
2659 if (!visible
|| !fb
) {
2661 if (INTEL_INFO(dev
)->gen
>= 4)
2662 I915_WRITE(DSPSURF(plane
), 0);
2664 I915_WRITE(DSPADDR(plane
), 0);
2669 obj
= intel_fb_obj(fb
);
2670 if (WARN_ON(obj
== NULL
))
2673 pixel_size
= drm_format_plane_cpp(fb
->pixel_format
, 0);
2675 dspcntr
= DISPPLANE_GAMMA_ENABLE
;
2677 dspcntr
|= DISPLAY_PLANE_ENABLE
;
2679 if (INTEL_INFO(dev
)->gen
< 4) {
2680 if (intel_crtc
->pipe
== PIPE_B
)
2681 dspcntr
|= DISPPLANE_SEL_PIPE_B
;
2683 /* pipesrc and dspsize control the size that is scaled from,
2684 * which should always be the user's requested size.
2686 I915_WRITE(DSPSIZE(plane
),
2687 ((intel_crtc
->config
->pipe_src_h
- 1) << 16) |
2688 (intel_crtc
->config
->pipe_src_w
- 1));
2689 I915_WRITE(DSPPOS(plane
), 0);
2690 } else if (IS_CHERRYVIEW(dev
) && plane
== PLANE_B
) {
2691 I915_WRITE(PRIMSIZE(plane
),
2692 ((intel_crtc
->config
->pipe_src_h
- 1) << 16) |
2693 (intel_crtc
->config
->pipe_src_w
- 1));
2694 I915_WRITE(PRIMPOS(plane
), 0);
2695 I915_WRITE(PRIMCNSTALPHA(plane
), 0);
2698 switch (fb
->pixel_format
) {
2700 dspcntr
|= DISPPLANE_8BPP
;
2702 case DRM_FORMAT_XRGB1555
:
2703 case DRM_FORMAT_ARGB1555
:
2704 dspcntr
|= DISPPLANE_BGRX555
;
2706 case DRM_FORMAT_RGB565
:
2707 dspcntr
|= DISPPLANE_BGRX565
;
2709 case DRM_FORMAT_XRGB8888
:
2710 case DRM_FORMAT_ARGB8888
:
2711 dspcntr
|= DISPPLANE_BGRX888
;
2713 case DRM_FORMAT_XBGR8888
:
2714 case DRM_FORMAT_ABGR8888
:
2715 dspcntr
|= DISPPLANE_RGBX888
;
2717 case DRM_FORMAT_XRGB2101010
:
2718 case DRM_FORMAT_ARGB2101010
:
2719 dspcntr
|= DISPPLANE_BGRX101010
;
2721 case DRM_FORMAT_XBGR2101010
:
2722 case DRM_FORMAT_ABGR2101010
:
2723 dspcntr
|= DISPPLANE_RGBX101010
;
2729 if (INTEL_INFO(dev
)->gen
>= 4 &&
2730 obj
->tiling_mode
!= I915_TILING_NONE
)
2731 dspcntr
|= DISPPLANE_TILED
;
2734 dspcntr
|= DISPPLANE_TRICKLE_FEED_DISABLE
;
2736 linear_offset
= y
* fb
->pitches
[0] + x
* pixel_size
;
2738 if (INTEL_INFO(dev
)->gen
>= 4) {
2739 intel_crtc
->dspaddr_offset
=
2740 intel_gen4_compute_page_offset(&x
, &y
, obj
->tiling_mode
,
2743 linear_offset
-= intel_crtc
->dspaddr_offset
;
2745 intel_crtc
->dspaddr_offset
= linear_offset
;
2748 if (crtc
->primary
->state
->rotation
== BIT(DRM_ROTATE_180
)) {
2749 dspcntr
|= DISPPLANE_ROTATE_180
;
2751 x
+= (intel_crtc
->config
->pipe_src_w
- 1);
2752 y
+= (intel_crtc
->config
->pipe_src_h
- 1);
2754 /* Finding the last pixel of the last line of the display
2755 data and adding to linear_offset*/
2757 (intel_crtc
->config
->pipe_src_h
- 1) * fb
->pitches
[0] +
2758 (intel_crtc
->config
->pipe_src_w
- 1) * pixel_size
;
2761 I915_WRITE(reg
, dspcntr
);
2763 I915_WRITE(DSPSTRIDE(plane
), fb
->pitches
[0]);
2764 if (INTEL_INFO(dev
)->gen
>= 4) {
2765 I915_WRITE(DSPSURF(plane
),
2766 i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
);
2767 I915_WRITE(DSPTILEOFF(plane
), (y
<< 16) | x
);
2768 I915_WRITE(DSPLINOFF(plane
), linear_offset
);
2770 I915_WRITE(DSPADDR(plane
), i915_gem_obj_ggtt_offset(obj
) + linear_offset
);
2774 static void ironlake_update_primary_plane(struct drm_crtc
*crtc
,
2775 struct drm_framebuffer
*fb
,
2778 struct drm_device
*dev
= crtc
->dev
;
2779 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2780 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2781 struct drm_plane
*primary
= crtc
->primary
;
2782 bool visible
= to_intel_plane_state(primary
->state
)->visible
;
2783 struct drm_i915_gem_object
*obj
;
2784 int plane
= intel_crtc
->plane
;
2785 unsigned long linear_offset
;
2787 u32 reg
= DSPCNTR(plane
);
2790 if (!visible
|| !fb
) {
2792 I915_WRITE(DSPSURF(plane
), 0);
2797 obj
= intel_fb_obj(fb
);
2798 if (WARN_ON(obj
== NULL
))
2801 pixel_size
= drm_format_plane_cpp(fb
->pixel_format
, 0);
2803 dspcntr
= DISPPLANE_GAMMA_ENABLE
;
2805 dspcntr
|= DISPLAY_PLANE_ENABLE
;
2807 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
2808 dspcntr
|= DISPPLANE_PIPE_CSC_ENABLE
;
2810 switch (fb
->pixel_format
) {
2812 dspcntr
|= DISPPLANE_8BPP
;
2814 case DRM_FORMAT_RGB565
:
2815 dspcntr
|= DISPPLANE_BGRX565
;
2817 case DRM_FORMAT_XRGB8888
:
2818 case DRM_FORMAT_ARGB8888
:
2819 dspcntr
|= DISPPLANE_BGRX888
;
2821 case DRM_FORMAT_XBGR8888
:
2822 case DRM_FORMAT_ABGR8888
:
2823 dspcntr
|= DISPPLANE_RGBX888
;
2825 case DRM_FORMAT_XRGB2101010
:
2826 case DRM_FORMAT_ARGB2101010
:
2827 dspcntr
|= DISPPLANE_BGRX101010
;
2829 case DRM_FORMAT_XBGR2101010
:
2830 case DRM_FORMAT_ABGR2101010
:
2831 dspcntr
|= DISPPLANE_RGBX101010
;
2837 if (obj
->tiling_mode
!= I915_TILING_NONE
)
2838 dspcntr
|= DISPPLANE_TILED
;
2840 if (!IS_HASWELL(dev
) && !IS_BROADWELL(dev
))
2841 dspcntr
|= DISPPLANE_TRICKLE_FEED_DISABLE
;
2843 linear_offset
= y
* fb
->pitches
[0] + x
* pixel_size
;
2844 intel_crtc
->dspaddr_offset
=
2845 intel_gen4_compute_page_offset(&x
, &y
, obj
->tiling_mode
,
2848 linear_offset
-= intel_crtc
->dspaddr_offset
;
2849 if (crtc
->primary
->state
->rotation
== BIT(DRM_ROTATE_180
)) {
2850 dspcntr
|= DISPPLANE_ROTATE_180
;
2852 if (!IS_HASWELL(dev
) && !IS_BROADWELL(dev
)) {
2853 x
+= (intel_crtc
->config
->pipe_src_w
- 1);
2854 y
+= (intel_crtc
->config
->pipe_src_h
- 1);
2856 /* Finding the last pixel of the last line of the display
2857 data and adding to linear_offset*/
2859 (intel_crtc
->config
->pipe_src_h
- 1) * fb
->pitches
[0] +
2860 (intel_crtc
->config
->pipe_src_w
- 1) * pixel_size
;
2864 I915_WRITE(reg
, dspcntr
);
2866 I915_WRITE(DSPSTRIDE(plane
), fb
->pitches
[0]);
2867 I915_WRITE(DSPSURF(plane
),
2868 i915_gem_obj_ggtt_offset(obj
) + intel_crtc
->dspaddr_offset
);
2869 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
2870 I915_WRITE(DSPOFFSET(plane
), (y
<< 16) | x
);
2872 I915_WRITE(DSPTILEOFF(plane
), (y
<< 16) | x
);
2873 I915_WRITE(DSPLINOFF(plane
), linear_offset
);
2878 u32
intel_fb_stride_alignment(struct drm_device
*dev
, uint64_t fb_modifier
,
2879 uint32_t pixel_format
)
2881 u32 bits_per_pixel
= drm_format_plane_cpp(pixel_format
, 0) * 8;
2884 * The stride is either expressed as a multiple of 64 bytes
2885 * chunks for linear buffers or in number of tiles for tiled
2888 switch (fb_modifier
) {
2889 case DRM_FORMAT_MOD_NONE
:
2891 case I915_FORMAT_MOD_X_TILED
:
2892 if (INTEL_INFO(dev
)->gen
== 2)
2895 case I915_FORMAT_MOD_Y_TILED
:
2896 /* No need to check for old gens and Y tiling since this is
2897 * about the display engine and those will be blocked before
2901 case I915_FORMAT_MOD_Yf_TILED
:
2902 if (bits_per_pixel
== 8)
2907 MISSING_CASE(fb_modifier
);
2912 unsigned long intel_plane_obj_offset(struct intel_plane
*intel_plane
,
2913 struct drm_i915_gem_object
*obj
)
2915 const struct i915_ggtt_view
*view
= &i915_ggtt_view_normal
;
2917 if (intel_rotation_90_or_270(intel_plane
->base
.state
->rotation
))
2918 view
= &i915_ggtt_view_rotated
;
2920 return i915_gem_obj_ggtt_offset_view(obj
, view
);
2924 * This function detaches (aka. unbinds) unused scalers in hardware
2926 void skl_detach_scalers(struct intel_crtc
*intel_crtc
)
2928 struct drm_device
*dev
;
2929 struct drm_i915_private
*dev_priv
;
2930 struct intel_crtc_scaler_state
*scaler_state
;
2933 if (!intel_crtc
|| !intel_crtc
->config
)
2936 dev
= intel_crtc
->base
.dev
;
2937 dev_priv
= dev
->dev_private
;
2938 scaler_state
= &intel_crtc
->config
->scaler_state
;
2940 /* loop through and disable scalers that aren't in use */
2941 for (i
= 0; i
< intel_crtc
->num_scalers
; i
++) {
2942 if (!scaler_state
->scalers
[i
].in_use
) {
2943 I915_WRITE(SKL_PS_CTRL(intel_crtc
->pipe
, i
), 0);
2944 I915_WRITE(SKL_PS_WIN_POS(intel_crtc
->pipe
, i
), 0);
2945 I915_WRITE(SKL_PS_WIN_SZ(intel_crtc
->pipe
, i
), 0);
2946 DRM_DEBUG_KMS("CRTC:%d Disabled scaler id %u.%u\n",
2947 intel_crtc
->base
.base
.id
, intel_crtc
->pipe
, i
);
2952 u32
skl_plane_ctl_format(uint32_t pixel_format
)
2954 u32 plane_ctl_format
= 0;
2955 switch (pixel_format
) {
2956 case DRM_FORMAT_RGB565
:
2957 plane_ctl_format
= PLANE_CTL_FORMAT_RGB_565
;
2959 case DRM_FORMAT_XBGR8888
:
2960 plane_ctl_format
= PLANE_CTL_FORMAT_XRGB_8888
| PLANE_CTL_ORDER_RGBX
;
2962 case DRM_FORMAT_XRGB8888
:
2963 plane_ctl_format
= PLANE_CTL_FORMAT_XRGB_8888
;
2966 * XXX: For ARBG/ABGR formats we default to expecting scanout buffers
2967 * to be already pre-multiplied. We need to add a knob (or a different
2968 * DRM_FORMAT) for user-space to configure that.
2970 case DRM_FORMAT_ABGR8888
:
2971 plane_ctl_format
= PLANE_CTL_FORMAT_XRGB_8888
| PLANE_CTL_ORDER_RGBX
|
2972 PLANE_CTL_ALPHA_SW_PREMULTIPLY
;
2974 case DRM_FORMAT_ARGB8888
:
2975 plane_ctl_format
= PLANE_CTL_FORMAT_XRGB_8888
|
2976 PLANE_CTL_ALPHA_SW_PREMULTIPLY
;
2978 case DRM_FORMAT_XRGB2101010
:
2979 plane_ctl_format
= PLANE_CTL_FORMAT_XRGB_2101010
;
2981 case DRM_FORMAT_XBGR2101010
:
2982 plane_ctl_format
= PLANE_CTL_ORDER_RGBX
| PLANE_CTL_FORMAT_XRGB_2101010
;
2984 case DRM_FORMAT_YUYV
:
2985 plane_ctl_format
= PLANE_CTL_FORMAT_YUV422
| PLANE_CTL_YUV422_YUYV
;
2987 case DRM_FORMAT_YVYU
:
2988 plane_ctl_format
= PLANE_CTL_FORMAT_YUV422
| PLANE_CTL_YUV422_YVYU
;
2990 case DRM_FORMAT_UYVY
:
2991 plane_ctl_format
= PLANE_CTL_FORMAT_YUV422
| PLANE_CTL_YUV422_UYVY
;
2993 case DRM_FORMAT_VYUY
:
2994 plane_ctl_format
= PLANE_CTL_FORMAT_YUV422
| PLANE_CTL_YUV422_VYUY
;
2999 return plane_ctl_format
;
3002 u32
skl_plane_ctl_tiling(uint64_t fb_modifier
)
3004 u32 plane_ctl_tiling
= 0;
3005 switch (fb_modifier
) {
3006 case DRM_FORMAT_MOD_NONE
:
3008 case I915_FORMAT_MOD_X_TILED
:
3009 plane_ctl_tiling
= PLANE_CTL_TILED_X
;
3011 case I915_FORMAT_MOD_Y_TILED
:
3012 plane_ctl_tiling
= PLANE_CTL_TILED_Y
;
3014 case I915_FORMAT_MOD_Yf_TILED
:
3015 plane_ctl_tiling
= PLANE_CTL_TILED_YF
;
3018 MISSING_CASE(fb_modifier
);
3020 return plane_ctl_tiling
;
3023 u32
skl_plane_ctl_rotation(unsigned int rotation
)
3025 u32 plane_ctl_rotation
= 0;
3027 case BIT(DRM_ROTATE_0
):
3029 case BIT(DRM_ROTATE_90
):
3030 plane_ctl_rotation
= PLANE_CTL_ROTATE_90
;
3032 case BIT(DRM_ROTATE_180
):
3033 plane_ctl_rotation
= PLANE_CTL_ROTATE_180
;
3035 case BIT(DRM_ROTATE_270
):
3036 plane_ctl_rotation
= PLANE_CTL_ROTATE_270
;
3039 MISSING_CASE(rotation
);
3042 return plane_ctl_rotation
;
3045 static void skylake_update_primary_plane(struct drm_crtc
*crtc
,
3046 struct drm_framebuffer
*fb
,
3049 struct drm_device
*dev
= crtc
->dev
;
3050 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3051 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3052 struct drm_plane
*plane
= crtc
->primary
;
3053 bool visible
= to_intel_plane_state(plane
->state
)->visible
;
3054 struct drm_i915_gem_object
*obj
;
3055 int pipe
= intel_crtc
->pipe
;
3056 u32 plane_ctl
, stride_div
, stride
;
3057 u32 tile_height
, plane_offset
, plane_size
;
3058 unsigned int rotation
;
3059 int x_offset
, y_offset
;
3060 unsigned long surf_addr
;
3061 struct intel_crtc_state
*crtc_state
= intel_crtc
->config
;
3062 struct intel_plane_state
*plane_state
;
3063 int src_x
= 0, src_y
= 0, src_w
= 0, src_h
= 0;
3064 int dst_x
= 0, dst_y
= 0, dst_w
= 0, dst_h
= 0;
3067 plane_state
= to_intel_plane_state(plane
->state
);
3069 if (!visible
|| !fb
) {
3070 I915_WRITE(PLANE_CTL(pipe
, 0), 0);
3071 I915_WRITE(PLANE_SURF(pipe
, 0), 0);
3072 POSTING_READ(PLANE_CTL(pipe
, 0));
3076 plane_ctl
= PLANE_CTL_ENABLE
|
3077 PLANE_CTL_PIPE_GAMMA_ENABLE
|
3078 PLANE_CTL_PIPE_CSC_ENABLE
;
3080 plane_ctl
|= skl_plane_ctl_format(fb
->pixel_format
);
3081 plane_ctl
|= skl_plane_ctl_tiling(fb
->modifier
[0]);
3082 plane_ctl
|= PLANE_CTL_PLANE_GAMMA_DISABLE
;
3084 rotation
= plane
->state
->rotation
;
3085 plane_ctl
|= skl_plane_ctl_rotation(rotation
);
3087 obj
= intel_fb_obj(fb
);
3088 stride_div
= intel_fb_stride_alignment(dev
, fb
->modifier
[0],
3090 surf_addr
= intel_plane_obj_offset(to_intel_plane(plane
), obj
);
3093 * FIXME: intel_plane_state->src, dst aren't set when transitional
3094 * update_plane helpers are called from legacy paths.
3095 * Once full atomic crtc is available, below check can be avoided.
3097 if (drm_rect_width(&plane_state
->src
)) {
3098 scaler_id
= plane_state
->scaler_id
;
3099 src_x
= plane_state
->src
.x1
>> 16;
3100 src_y
= plane_state
->src
.y1
>> 16;
3101 src_w
= drm_rect_width(&plane_state
->src
) >> 16;
3102 src_h
= drm_rect_height(&plane_state
->src
) >> 16;
3103 dst_x
= plane_state
->dst
.x1
;
3104 dst_y
= plane_state
->dst
.y1
;
3105 dst_w
= drm_rect_width(&plane_state
->dst
);
3106 dst_h
= drm_rect_height(&plane_state
->dst
);
3108 WARN_ON(x
!= src_x
|| y
!= src_y
);
3110 src_w
= intel_crtc
->config
->pipe_src_w
;
3111 src_h
= intel_crtc
->config
->pipe_src_h
;
3114 if (intel_rotation_90_or_270(rotation
)) {
3115 /* stride = Surface height in tiles */
3116 tile_height
= intel_tile_height(dev
, fb
->bits_per_pixel
,
3118 stride
= DIV_ROUND_UP(fb
->height
, tile_height
);
3119 x_offset
= stride
* tile_height
- y
- src_h
;
3121 plane_size
= (src_w
- 1) << 16 | (src_h
- 1);
3123 stride
= fb
->pitches
[0] / stride_div
;
3126 plane_size
= (src_h
- 1) << 16 | (src_w
- 1);
3128 plane_offset
= y_offset
<< 16 | x_offset
;
3130 I915_WRITE(PLANE_CTL(pipe
, 0), plane_ctl
);
3131 I915_WRITE(PLANE_OFFSET(pipe
, 0), plane_offset
);
3132 I915_WRITE(PLANE_SIZE(pipe
, 0), plane_size
);
3133 I915_WRITE(PLANE_STRIDE(pipe
, 0), stride
);
3135 if (scaler_id
>= 0) {
3136 uint32_t ps_ctrl
= 0;
3138 WARN_ON(!dst_w
|| !dst_h
);
3139 ps_ctrl
= PS_SCALER_EN
| PS_PLANE_SEL(0) |
3140 crtc_state
->scaler_state
.scalers
[scaler_id
].mode
;
3141 I915_WRITE(SKL_PS_CTRL(pipe
, scaler_id
), ps_ctrl
);
3142 I915_WRITE(SKL_PS_PWR_GATE(pipe
, scaler_id
), 0);
3143 I915_WRITE(SKL_PS_WIN_POS(pipe
, scaler_id
), (dst_x
<< 16) | dst_y
);
3144 I915_WRITE(SKL_PS_WIN_SZ(pipe
, scaler_id
), (dst_w
<< 16) | dst_h
);
3145 I915_WRITE(PLANE_POS(pipe
, 0), 0);
3147 I915_WRITE(PLANE_POS(pipe
, 0), (dst_y
<< 16) | dst_x
);
3150 I915_WRITE(PLANE_SURF(pipe
, 0), surf_addr
);
3152 POSTING_READ(PLANE_SURF(pipe
, 0));
3155 /* Assume fb object is pinned & idle & fenced and just update base pointers */
3157 intel_pipe_set_base_atomic(struct drm_crtc
*crtc
, struct drm_framebuffer
*fb
,
3158 int x
, int y
, enum mode_set_atomic state
)
3160 struct drm_device
*dev
= crtc
->dev
;
3161 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3163 if (dev_priv
->display
.disable_fbc
)
3164 dev_priv
->display
.disable_fbc(dev
);
3166 dev_priv
->display
.update_primary_plane(crtc
, fb
, x
, y
);
3171 static void intel_complete_page_flips(struct drm_device
*dev
)
3173 struct drm_crtc
*crtc
;
3175 for_each_crtc(dev
, crtc
) {
3176 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3177 enum plane plane
= intel_crtc
->plane
;
3179 intel_prepare_page_flip(dev
, plane
);
3180 intel_finish_page_flip_plane(dev
, plane
);
3184 static void intel_update_primary_planes(struct drm_device
*dev
)
3186 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3187 struct drm_crtc
*crtc
;
3189 for_each_crtc(dev
, crtc
) {
3190 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3192 drm_modeset_lock(&crtc
->mutex
, NULL
);
3194 * FIXME: Once we have proper support for primary planes (and
3195 * disabling them without disabling the entire crtc) allow again
3196 * a NULL crtc->primary->fb.
3198 if (intel_crtc
->active
&& crtc
->primary
->fb
)
3199 dev_priv
->display
.update_primary_plane(crtc
,
3203 drm_modeset_unlock(&crtc
->mutex
);
3207 void intel_crtc_reset(struct intel_crtc
*crtc
)
3209 struct drm_i915_private
*dev_priv
= to_i915(crtc
->base
.dev
);
3214 intel_crtc_disable_planes(&crtc
->base
);
3215 dev_priv
->display
.crtc_disable(&crtc
->base
);
3216 dev_priv
->display
.crtc_enable(&crtc
->base
);
3217 intel_crtc_enable_planes(&crtc
->base
);
3220 void intel_prepare_reset(struct drm_device
*dev
)
3222 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3223 struct intel_crtc
*crtc
;
3225 /* no reset support for gen2 */
3229 /* reset doesn't touch the display */
3230 if (INTEL_INFO(dev
)->gen
>= 5 || IS_G4X(dev
))
3233 drm_modeset_lock_all(dev
);
3236 * Disabling the crtcs gracefully seems nicer. Also the
3237 * g33 docs say we should at least disable all the planes.
3239 for_each_intel_crtc(dev
, crtc
) {
3243 intel_crtc_disable_planes(&crtc
->base
);
3244 dev_priv
->display
.crtc_disable(&crtc
->base
);
3248 void intel_finish_reset(struct drm_device
*dev
)
3250 struct drm_i915_private
*dev_priv
= to_i915(dev
);
3253 * Flips in the rings will be nuked by the reset,
3254 * so complete all pending flips so that user space
3255 * will get its events and not get stuck.
3257 intel_complete_page_flips(dev
);
3259 /* no reset support for gen2 */
3263 /* reset doesn't touch the display */
3264 if (INTEL_INFO(dev
)->gen
>= 5 || IS_G4X(dev
)) {
3266 * Flips in the rings have been nuked by the reset,
3267 * so update the base address of all primary
3268 * planes to the the last fb to make sure we're
3269 * showing the correct fb after a reset.
3271 intel_update_primary_planes(dev
);
3276 * The display has been reset as well,
3277 * so need a full re-initialization.
3279 intel_runtime_pm_disable_interrupts(dev_priv
);
3280 intel_runtime_pm_enable_interrupts(dev_priv
);
3282 intel_modeset_init_hw(dev
);
3284 spin_lock_irq(&dev_priv
->irq_lock
);
3285 if (dev_priv
->display
.hpd_irq_setup
)
3286 dev_priv
->display
.hpd_irq_setup(dev
);
3287 spin_unlock_irq(&dev_priv
->irq_lock
);
3289 intel_modeset_setup_hw_state(dev
, true);
3291 intel_hpd_init(dev_priv
);
3293 drm_modeset_unlock_all(dev
);
3297 intel_finish_fb(struct drm_framebuffer
*old_fb
)
3299 struct drm_i915_gem_object
*obj
= intel_fb_obj(old_fb
);
3300 struct drm_i915_private
*dev_priv
= obj
->base
.dev
->dev_private
;
3301 bool was_interruptible
= dev_priv
->mm
.interruptible
;
3304 /* Big Hammer, we also need to ensure that any pending
3305 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
3306 * current scanout is retired before unpinning the old
3309 * This should only fail upon a hung GPU, in which case we
3310 * can safely continue.
3312 dev_priv
->mm
.interruptible
= false;
3313 ret
= i915_gem_object_finish_gpu(obj
);
3314 dev_priv
->mm
.interruptible
= was_interruptible
;
3319 static bool intel_crtc_has_pending_flip(struct drm_crtc
*crtc
)
3321 struct drm_device
*dev
= crtc
->dev
;
3322 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3323 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3326 if (i915_reset_in_progress(&dev_priv
->gpu_error
) ||
3327 intel_crtc
->reset_counter
!= atomic_read(&dev_priv
->gpu_error
.reset_counter
))
3330 spin_lock_irq(&dev
->event_lock
);
3331 pending
= to_intel_crtc(crtc
)->unpin_work
!= NULL
;
3332 spin_unlock_irq(&dev
->event_lock
);
3337 static void intel_update_pipe_size(struct intel_crtc
*crtc
)
3339 struct drm_device
*dev
= crtc
->base
.dev
;
3340 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3341 const struct drm_display_mode
*adjusted_mode
;
3347 * Update pipe size and adjust fitter if needed: the reason for this is
3348 * that in compute_mode_changes we check the native mode (not the pfit
3349 * mode) to see if we can flip rather than do a full mode set. In the
3350 * fastboot case, we'll flip, but if we don't update the pipesrc and
3351 * pfit state, we'll end up with a big fb scanned out into the wrong
3354 * To fix this properly, we need to hoist the checks up into
3355 * compute_mode_changes (or above), check the actual pfit state and
3356 * whether the platform allows pfit disable with pipe active, and only
3357 * then update the pipesrc and pfit state, even on the flip path.
3360 adjusted_mode
= &crtc
->config
->base
.adjusted_mode
;
3362 I915_WRITE(PIPESRC(crtc
->pipe
),
3363 ((adjusted_mode
->crtc_hdisplay
- 1) << 16) |
3364 (adjusted_mode
->crtc_vdisplay
- 1));
3365 if (!crtc
->config
->pch_pfit
.enabled
&&
3366 (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) ||
3367 intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
))) {
3368 I915_WRITE(PF_CTL(crtc
->pipe
), 0);
3369 I915_WRITE(PF_WIN_POS(crtc
->pipe
), 0);
3370 I915_WRITE(PF_WIN_SZ(crtc
->pipe
), 0);
3372 crtc
->config
->pipe_src_w
= adjusted_mode
->crtc_hdisplay
;
3373 crtc
->config
->pipe_src_h
= adjusted_mode
->crtc_vdisplay
;
3376 static void intel_fdi_normal_train(struct drm_crtc
*crtc
)
3378 struct drm_device
*dev
= crtc
->dev
;
3379 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3380 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3381 int pipe
= intel_crtc
->pipe
;
3384 /* enable normal train */
3385 reg
= FDI_TX_CTL(pipe
);
3386 temp
= I915_READ(reg
);
3387 if (IS_IVYBRIDGE(dev
)) {
3388 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
3389 temp
|= FDI_LINK_TRAIN_NONE_IVB
| FDI_TX_ENHANCE_FRAME_ENABLE
;
3391 temp
&= ~FDI_LINK_TRAIN_NONE
;
3392 temp
|= FDI_LINK_TRAIN_NONE
| FDI_TX_ENHANCE_FRAME_ENABLE
;
3394 I915_WRITE(reg
, temp
);
3396 reg
= FDI_RX_CTL(pipe
);
3397 temp
= I915_READ(reg
);
3398 if (HAS_PCH_CPT(dev
)) {
3399 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3400 temp
|= FDI_LINK_TRAIN_NORMAL_CPT
;
3402 temp
&= ~FDI_LINK_TRAIN_NONE
;
3403 temp
|= FDI_LINK_TRAIN_NONE
;
3405 I915_WRITE(reg
, temp
| FDI_RX_ENHANCE_FRAME_ENABLE
);
3407 /* wait one idle pattern time */
3411 /* IVB wants error correction enabled */
3412 if (IS_IVYBRIDGE(dev
))
3413 I915_WRITE(reg
, I915_READ(reg
) | FDI_FS_ERRC_ENABLE
|
3414 FDI_FE_ERRC_ENABLE
);
3417 /* The FDI link training functions for ILK/Ibexpeak. */
3418 static void ironlake_fdi_link_train(struct drm_crtc
*crtc
)
3420 struct drm_device
*dev
= crtc
->dev
;
3421 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3422 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3423 int pipe
= intel_crtc
->pipe
;
3424 u32 reg
, temp
, tries
;
3426 /* FDI needs bits from pipe first */
3427 assert_pipe_enabled(dev_priv
, pipe
);
3429 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3431 reg
= FDI_RX_IMR(pipe
);
3432 temp
= I915_READ(reg
);
3433 temp
&= ~FDI_RX_SYMBOL_LOCK
;
3434 temp
&= ~FDI_RX_BIT_LOCK
;
3435 I915_WRITE(reg
, temp
);
3439 /* enable CPU FDI TX and PCH FDI RX */
3440 reg
= FDI_TX_CTL(pipe
);
3441 temp
= I915_READ(reg
);
3442 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
3443 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
->fdi_lanes
);
3444 temp
&= ~FDI_LINK_TRAIN_NONE
;
3445 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3446 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
3448 reg
= FDI_RX_CTL(pipe
);
3449 temp
= I915_READ(reg
);
3450 temp
&= ~FDI_LINK_TRAIN_NONE
;
3451 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3452 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
3457 /* Ironlake workaround, enable clock pointer after FDI enable*/
3458 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
3459 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
|
3460 FDI_RX_PHASE_SYNC_POINTER_EN
);
3462 reg
= FDI_RX_IIR(pipe
);
3463 for (tries
= 0; tries
< 5; tries
++) {
3464 temp
= I915_READ(reg
);
3465 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3467 if ((temp
& FDI_RX_BIT_LOCK
)) {
3468 DRM_DEBUG_KMS("FDI train 1 done.\n");
3469 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
3474 DRM_ERROR("FDI train 1 fail!\n");
3477 reg
= FDI_TX_CTL(pipe
);
3478 temp
= I915_READ(reg
);
3479 temp
&= ~FDI_LINK_TRAIN_NONE
;
3480 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3481 I915_WRITE(reg
, temp
);
3483 reg
= FDI_RX_CTL(pipe
);
3484 temp
= I915_READ(reg
);
3485 temp
&= ~FDI_LINK_TRAIN_NONE
;
3486 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3487 I915_WRITE(reg
, temp
);
3492 reg
= FDI_RX_IIR(pipe
);
3493 for (tries
= 0; tries
< 5; tries
++) {
3494 temp
= I915_READ(reg
);
3495 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3497 if (temp
& FDI_RX_SYMBOL_LOCK
) {
3498 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3499 DRM_DEBUG_KMS("FDI train 2 done.\n");
3504 DRM_ERROR("FDI train 2 fail!\n");
3506 DRM_DEBUG_KMS("FDI train done\n");
3510 static const int snb_b_fdi_train_param
[] = {
3511 FDI_LINK_TRAIN_400MV_0DB_SNB_B
,
3512 FDI_LINK_TRAIN_400MV_6DB_SNB_B
,
3513 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B
,
3514 FDI_LINK_TRAIN_800MV_0DB_SNB_B
,
3517 /* The FDI link training functions for SNB/Cougarpoint. */
3518 static void gen6_fdi_link_train(struct drm_crtc
*crtc
)
3520 struct drm_device
*dev
= crtc
->dev
;
3521 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3522 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3523 int pipe
= intel_crtc
->pipe
;
3524 u32 reg
, temp
, i
, retry
;
3526 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3528 reg
= FDI_RX_IMR(pipe
);
3529 temp
= I915_READ(reg
);
3530 temp
&= ~FDI_RX_SYMBOL_LOCK
;
3531 temp
&= ~FDI_RX_BIT_LOCK
;
3532 I915_WRITE(reg
, temp
);
3537 /* enable CPU FDI TX and PCH FDI RX */
3538 reg
= FDI_TX_CTL(pipe
);
3539 temp
= I915_READ(reg
);
3540 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
3541 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
->fdi_lanes
);
3542 temp
&= ~FDI_LINK_TRAIN_NONE
;
3543 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3544 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3546 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
3547 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
3549 I915_WRITE(FDI_RX_MISC(pipe
),
3550 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
3552 reg
= FDI_RX_CTL(pipe
);
3553 temp
= I915_READ(reg
);
3554 if (HAS_PCH_CPT(dev
)) {
3555 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3556 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
3558 temp
&= ~FDI_LINK_TRAIN_NONE
;
3559 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3561 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
3566 for (i
= 0; i
< 4; i
++) {
3567 reg
= FDI_TX_CTL(pipe
);
3568 temp
= I915_READ(reg
);
3569 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3570 temp
|= snb_b_fdi_train_param
[i
];
3571 I915_WRITE(reg
, temp
);
3576 for (retry
= 0; retry
< 5; retry
++) {
3577 reg
= FDI_RX_IIR(pipe
);
3578 temp
= I915_READ(reg
);
3579 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3580 if (temp
& FDI_RX_BIT_LOCK
) {
3581 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
3582 DRM_DEBUG_KMS("FDI train 1 done.\n");
3591 DRM_ERROR("FDI train 1 fail!\n");
3594 reg
= FDI_TX_CTL(pipe
);
3595 temp
= I915_READ(reg
);
3596 temp
&= ~FDI_LINK_TRAIN_NONE
;
3597 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3599 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3601 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
3603 I915_WRITE(reg
, temp
);
3605 reg
= FDI_RX_CTL(pipe
);
3606 temp
= I915_READ(reg
);
3607 if (HAS_PCH_CPT(dev
)) {
3608 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3609 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
3611 temp
&= ~FDI_LINK_TRAIN_NONE
;
3612 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
3614 I915_WRITE(reg
, temp
);
3619 for (i
= 0; i
< 4; i
++) {
3620 reg
= FDI_TX_CTL(pipe
);
3621 temp
= I915_READ(reg
);
3622 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3623 temp
|= snb_b_fdi_train_param
[i
];
3624 I915_WRITE(reg
, temp
);
3629 for (retry
= 0; retry
< 5; retry
++) {
3630 reg
= FDI_RX_IIR(pipe
);
3631 temp
= I915_READ(reg
);
3632 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3633 if (temp
& FDI_RX_SYMBOL_LOCK
) {
3634 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3635 DRM_DEBUG_KMS("FDI train 2 done.\n");
3644 DRM_ERROR("FDI train 2 fail!\n");
3646 DRM_DEBUG_KMS("FDI train done.\n");
3649 /* Manual link training for Ivy Bridge A0 parts */
3650 static void ivb_manual_fdi_link_train(struct drm_crtc
*crtc
)
3652 struct drm_device
*dev
= crtc
->dev
;
3653 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3654 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3655 int pipe
= intel_crtc
->pipe
;
3656 u32 reg
, temp
, i
, j
;
3658 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
3660 reg
= FDI_RX_IMR(pipe
);
3661 temp
= I915_READ(reg
);
3662 temp
&= ~FDI_RX_SYMBOL_LOCK
;
3663 temp
&= ~FDI_RX_BIT_LOCK
;
3664 I915_WRITE(reg
, temp
);
3669 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
3670 I915_READ(FDI_RX_IIR(pipe
)));
3672 /* Try each vswing and preemphasis setting twice before moving on */
3673 for (j
= 0; j
< ARRAY_SIZE(snb_b_fdi_train_param
) * 2; j
++) {
3674 /* disable first in case we need to retry */
3675 reg
= FDI_TX_CTL(pipe
);
3676 temp
= I915_READ(reg
);
3677 temp
&= ~(FDI_LINK_TRAIN_AUTO
| FDI_LINK_TRAIN_NONE_IVB
);
3678 temp
&= ~FDI_TX_ENABLE
;
3679 I915_WRITE(reg
, temp
);
3681 reg
= FDI_RX_CTL(pipe
);
3682 temp
= I915_READ(reg
);
3683 temp
&= ~FDI_LINK_TRAIN_AUTO
;
3684 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3685 temp
&= ~FDI_RX_ENABLE
;
3686 I915_WRITE(reg
, temp
);
3688 /* enable CPU FDI TX and PCH FDI RX */
3689 reg
= FDI_TX_CTL(pipe
);
3690 temp
= I915_READ(reg
);
3691 temp
&= ~FDI_DP_PORT_WIDTH_MASK
;
3692 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
->fdi_lanes
);
3693 temp
|= FDI_LINK_TRAIN_PATTERN_1_IVB
;
3694 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
3695 temp
|= snb_b_fdi_train_param
[j
/2];
3696 temp
|= FDI_COMPOSITE_SYNC
;
3697 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
3699 I915_WRITE(FDI_RX_MISC(pipe
),
3700 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
3702 reg
= FDI_RX_CTL(pipe
);
3703 temp
= I915_READ(reg
);
3704 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
3705 temp
|= FDI_COMPOSITE_SYNC
;
3706 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
3709 udelay(1); /* should be 0.5us */
3711 for (i
= 0; i
< 4; i
++) {
3712 reg
= FDI_RX_IIR(pipe
);
3713 temp
= I915_READ(reg
);
3714 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3716 if (temp
& FDI_RX_BIT_LOCK
||
3717 (I915_READ(reg
) & FDI_RX_BIT_LOCK
)) {
3718 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
3719 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n",
3723 udelay(1); /* should be 0.5us */
3726 DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j
/ 2);
3731 reg
= FDI_TX_CTL(pipe
);
3732 temp
= I915_READ(reg
);
3733 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
3734 temp
|= FDI_LINK_TRAIN_PATTERN_2_IVB
;
3735 I915_WRITE(reg
, temp
);
3737 reg
= FDI_RX_CTL(pipe
);
3738 temp
= I915_READ(reg
);
3739 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3740 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
3741 I915_WRITE(reg
, temp
);
3744 udelay(2); /* should be 1.5us */
3746 for (i
= 0; i
< 4; i
++) {
3747 reg
= FDI_RX_IIR(pipe
);
3748 temp
= I915_READ(reg
);
3749 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
3751 if (temp
& FDI_RX_SYMBOL_LOCK
||
3752 (I915_READ(reg
) & FDI_RX_SYMBOL_LOCK
)) {
3753 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
3754 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n",
3758 udelay(2); /* should be 1.5us */
3761 DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j
/ 2);
3765 DRM_DEBUG_KMS("FDI train done.\n");
3768 static void ironlake_fdi_pll_enable(struct intel_crtc
*intel_crtc
)
3770 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3771 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3772 int pipe
= intel_crtc
->pipe
;
3776 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
3777 reg
= FDI_RX_CTL(pipe
);
3778 temp
= I915_READ(reg
);
3779 temp
&= ~(FDI_DP_PORT_WIDTH_MASK
| (0x7 << 16));
3780 temp
|= FDI_DP_PORT_WIDTH(intel_crtc
->config
->fdi_lanes
);
3781 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
3782 I915_WRITE(reg
, temp
| FDI_RX_PLL_ENABLE
);
3787 /* Switch from Rawclk to PCDclk */
3788 temp
= I915_READ(reg
);
3789 I915_WRITE(reg
, temp
| FDI_PCDCLK
);
3794 /* Enable CPU FDI TX PLL, always on for Ironlake */
3795 reg
= FDI_TX_CTL(pipe
);
3796 temp
= I915_READ(reg
);
3797 if ((temp
& FDI_TX_PLL_ENABLE
) == 0) {
3798 I915_WRITE(reg
, temp
| FDI_TX_PLL_ENABLE
);
3805 static void ironlake_fdi_pll_disable(struct intel_crtc
*intel_crtc
)
3807 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3808 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3809 int pipe
= intel_crtc
->pipe
;
3812 /* Switch from PCDclk to Rawclk */
3813 reg
= FDI_RX_CTL(pipe
);
3814 temp
= I915_READ(reg
);
3815 I915_WRITE(reg
, temp
& ~FDI_PCDCLK
);
3817 /* Disable CPU FDI TX PLL */
3818 reg
= FDI_TX_CTL(pipe
);
3819 temp
= I915_READ(reg
);
3820 I915_WRITE(reg
, temp
& ~FDI_TX_PLL_ENABLE
);
3825 reg
= FDI_RX_CTL(pipe
);
3826 temp
= I915_READ(reg
);
3827 I915_WRITE(reg
, temp
& ~FDI_RX_PLL_ENABLE
);
3829 /* Wait for the clocks to turn off. */
3834 static void ironlake_fdi_disable(struct drm_crtc
*crtc
)
3836 struct drm_device
*dev
= crtc
->dev
;
3837 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3838 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3839 int pipe
= intel_crtc
->pipe
;
3842 /* disable CPU FDI tx and PCH FDI rx */
3843 reg
= FDI_TX_CTL(pipe
);
3844 temp
= I915_READ(reg
);
3845 I915_WRITE(reg
, temp
& ~FDI_TX_ENABLE
);
3848 reg
= FDI_RX_CTL(pipe
);
3849 temp
= I915_READ(reg
);
3850 temp
&= ~(0x7 << 16);
3851 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
3852 I915_WRITE(reg
, temp
& ~FDI_RX_ENABLE
);
3857 /* Ironlake workaround, disable clock pointer after downing FDI */
3858 if (HAS_PCH_IBX(dev
))
3859 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
3861 /* still set train pattern 1 */
3862 reg
= FDI_TX_CTL(pipe
);
3863 temp
= I915_READ(reg
);
3864 temp
&= ~FDI_LINK_TRAIN_NONE
;
3865 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3866 I915_WRITE(reg
, temp
);
3868 reg
= FDI_RX_CTL(pipe
);
3869 temp
= I915_READ(reg
);
3870 if (HAS_PCH_CPT(dev
)) {
3871 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
3872 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
3874 temp
&= ~FDI_LINK_TRAIN_NONE
;
3875 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
3877 /* BPC in FDI rx is consistent with that in PIPECONF */
3878 temp
&= ~(0x07 << 16);
3879 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
3880 I915_WRITE(reg
, temp
);
3886 bool intel_has_pending_fb_unpin(struct drm_device
*dev
)
3888 struct intel_crtc
*crtc
;
3890 /* Note that we don't need to be called with mode_config.lock here
3891 * as our list of CRTC objects is static for the lifetime of the
3892 * device and so cannot disappear as we iterate. Similarly, we can
3893 * happily treat the predicates as racy, atomic checks as userspace
3894 * cannot claim and pin a new fb without at least acquring the
3895 * struct_mutex and so serialising with us.
3897 for_each_intel_crtc(dev
, crtc
) {
3898 if (atomic_read(&crtc
->unpin_work_count
) == 0)
3901 if (crtc
->unpin_work
)
3902 intel_wait_for_vblank(dev
, crtc
->pipe
);
3910 static void page_flip_completed(struct intel_crtc
*intel_crtc
)
3912 struct drm_i915_private
*dev_priv
= to_i915(intel_crtc
->base
.dev
);
3913 struct intel_unpin_work
*work
= intel_crtc
->unpin_work
;
3915 /* ensure that the unpin work is consistent wrt ->pending. */
3917 intel_crtc
->unpin_work
= NULL
;
3920 drm_send_vblank_event(intel_crtc
->base
.dev
,
3924 drm_crtc_vblank_put(&intel_crtc
->base
);
3926 wake_up_all(&dev_priv
->pending_flip_queue
);
3927 queue_work(dev_priv
->wq
, &work
->work
);
3929 trace_i915_flip_complete(intel_crtc
->plane
,
3930 work
->pending_flip_obj
);
3933 void intel_crtc_wait_for_pending_flips(struct drm_crtc
*crtc
)
3935 struct drm_device
*dev
= crtc
->dev
;
3936 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3938 WARN_ON(waitqueue_active(&dev_priv
->pending_flip_queue
));
3939 if (WARN_ON(wait_event_timeout(dev_priv
->pending_flip_queue
,
3940 !intel_crtc_has_pending_flip(crtc
),
3942 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3944 spin_lock_irq(&dev
->event_lock
);
3945 if (intel_crtc
->unpin_work
) {
3946 WARN_ONCE(1, "Removing stuck page flip\n");
3947 page_flip_completed(intel_crtc
);
3949 spin_unlock_irq(&dev
->event_lock
);
3952 if (crtc
->primary
->fb
) {
3953 mutex_lock(&dev
->struct_mutex
);
3954 intel_finish_fb(crtc
->primary
->fb
);
3955 mutex_unlock(&dev
->struct_mutex
);
3959 /* Program iCLKIP clock to the desired frequency */
3960 static void lpt_program_iclkip(struct drm_crtc
*crtc
)
3962 struct drm_device
*dev
= crtc
->dev
;
3963 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3964 int clock
= to_intel_crtc(crtc
)->config
->base
.adjusted_mode
.crtc_clock
;
3965 u32 divsel
, phaseinc
, auxdiv
, phasedir
= 0;
3968 mutex_lock(&dev_priv
->dpio_lock
);
3970 /* It is necessary to ungate the pixclk gate prior to programming
3971 * the divisors, and gate it back when it is done.
3973 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_GATE
);
3975 /* Disable SSCCTL */
3976 intel_sbi_write(dev_priv
, SBI_SSCCTL6
,
3977 intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
) |
3981 /* 20MHz is a corner case which is out of range for the 7-bit divisor */
3982 if (clock
== 20000) {
3987 /* The iCLK virtual clock root frequency is in MHz,
3988 * but the adjusted_mode->crtc_clock in in KHz. To get the
3989 * divisors, it is necessary to divide one by another, so we
3990 * convert the virtual clock precision to KHz here for higher
3993 u32 iclk_virtual_root_freq
= 172800 * 1000;
3994 u32 iclk_pi_range
= 64;
3995 u32 desired_divisor
, msb_divisor_value
, pi_value
;
3997 desired_divisor
= (iclk_virtual_root_freq
/ clock
);
3998 msb_divisor_value
= desired_divisor
/ iclk_pi_range
;
3999 pi_value
= desired_divisor
% iclk_pi_range
;
4002 divsel
= msb_divisor_value
- 2;
4003 phaseinc
= pi_value
;
4006 /* This should not happen with any sane values */
4007 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel
) &
4008 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
);
4009 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir
) &
4010 ~SBI_SSCDIVINTPHASE_INCVAL_MASK
);
4012 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
4019 /* Program SSCDIVINTPHASE6 */
4020 temp
= intel_sbi_read(dev_priv
, SBI_SSCDIVINTPHASE6
, SBI_ICLK
);
4021 temp
&= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
;
4022 temp
|= SBI_SSCDIVINTPHASE_DIVSEL(divsel
);
4023 temp
&= ~SBI_SSCDIVINTPHASE_INCVAL_MASK
;
4024 temp
|= SBI_SSCDIVINTPHASE_INCVAL(phaseinc
);
4025 temp
|= SBI_SSCDIVINTPHASE_DIR(phasedir
);
4026 temp
|= SBI_SSCDIVINTPHASE_PROPAGATE
;
4027 intel_sbi_write(dev_priv
, SBI_SSCDIVINTPHASE6
, temp
, SBI_ICLK
);
4029 /* Program SSCAUXDIV */
4030 temp
= intel_sbi_read(dev_priv
, SBI_SSCAUXDIV6
, SBI_ICLK
);
4031 temp
&= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
4032 temp
|= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv
);
4033 intel_sbi_write(dev_priv
, SBI_SSCAUXDIV6
, temp
, SBI_ICLK
);
4035 /* Enable modulator and associated divider */
4036 temp
= intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
);
4037 temp
&= ~SBI_SSCCTL_DISABLE
;
4038 intel_sbi_write(dev_priv
, SBI_SSCCTL6
, temp
, SBI_ICLK
);
4040 /* Wait for initialization time */
4043 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_UNGATE
);
4045 mutex_unlock(&dev_priv
->dpio_lock
);
4048 static void ironlake_pch_transcoder_set_timings(struct intel_crtc
*crtc
,
4049 enum pipe pch_transcoder
)
4051 struct drm_device
*dev
= crtc
->base
.dev
;
4052 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4053 enum transcoder cpu_transcoder
= crtc
->config
->cpu_transcoder
;
4055 I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder
),
4056 I915_READ(HTOTAL(cpu_transcoder
)));
4057 I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder
),
4058 I915_READ(HBLANK(cpu_transcoder
)));
4059 I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder
),
4060 I915_READ(HSYNC(cpu_transcoder
)));
4062 I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder
),
4063 I915_READ(VTOTAL(cpu_transcoder
)));
4064 I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder
),
4065 I915_READ(VBLANK(cpu_transcoder
)));
4066 I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder
),
4067 I915_READ(VSYNC(cpu_transcoder
)));
4068 I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder
),
4069 I915_READ(VSYNCSHIFT(cpu_transcoder
)));
4072 static void cpt_set_fdi_bc_bifurcation(struct drm_device
*dev
, bool enable
)
4074 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4077 temp
= I915_READ(SOUTH_CHICKEN1
);
4078 if (!!(temp
& FDI_BC_BIFURCATION_SELECT
) == enable
)
4081 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B
)) & FDI_RX_ENABLE
);
4082 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C
)) & FDI_RX_ENABLE
);
4084 temp
&= ~FDI_BC_BIFURCATION_SELECT
;
4086 temp
|= FDI_BC_BIFURCATION_SELECT
;
4088 DRM_DEBUG_KMS("%sabling fdi C rx\n", enable
? "en" : "dis");
4089 I915_WRITE(SOUTH_CHICKEN1
, temp
);
4090 POSTING_READ(SOUTH_CHICKEN1
);
4093 static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc
*intel_crtc
)
4095 struct drm_device
*dev
= intel_crtc
->base
.dev
;
4097 switch (intel_crtc
->pipe
) {
4101 if (intel_crtc
->config
->fdi_lanes
> 2)
4102 cpt_set_fdi_bc_bifurcation(dev
, false);
4104 cpt_set_fdi_bc_bifurcation(dev
, true);
4108 cpt_set_fdi_bc_bifurcation(dev
, true);
4117 * Enable PCH resources required for PCH ports:
4119 * - FDI training & RX/TX
4120 * - update transcoder timings
4121 * - DP transcoding bits
4124 static void ironlake_pch_enable(struct drm_crtc
*crtc
)
4126 struct drm_device
*dev
= crtc
->dev
;
4127 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4128 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4129 int pipe
= intel_crtc
->pipe
;
4132 assert_pch_transcoder_disabled(dev_priv
, pipe
);
4134 if (IS_IVYBRIDGE(dev
))
4135 ivybridge_update_fdi_bc_bifurcation(intel_crtc
);
4137 /* Write the TU size bits before fdi link training, so that error
4138 * detection works. */
4139 I915_WRITE(FDI_RX_TUSIZE1(pipe
),
4140 I915_READ(PIPE_DATA_M1(pipe
)) & TU_SIZE_MASK
);
4142 /* For PCH output, training FDI link */
4143 dev_priv
->display
.fdi_link_train(crtc
);
4145 /* We need to program the right clock selection before writing the pixel
4146 * mutliplier into the DPLL. */
4147 if (HAS_PCH_CPT(dev
)) {
4150 temp
= I915_READ(PCH_DPLL_SEL
);
4151 temp
|= TRANS_DPLL_ENABLE(pipe
);
4152 sel
= TRANS_DPLLB_SEL(pipe
);
4153 if (intel_crtc
->config
->shared_dpll
== DPLL_ID_PCH_PLL_B
)
4157 I915_WRITE(PCH_DPLL_SEL
, temp
);
4160 /* XXX: pch pll's can be enabled any time before we enable the PCH
4161 * transcoder, and we actually should do this to not upset any PCH
4162 * transcoder that already use the clock when we share it.
4164 * Note that enable_shared_dpll tries to do the right thing, but
4165 * get_shared_dpll unconditionally resets the pll - we need that to have
4166 * the right LVDS enable sequence. */
4167 intel_enable_shared_dpll(intel_crtc
);
4169 /* set transcoder timing, panel must allow it */
4170 assert_panel_unlocked(dev_priv
, pipe
);
4171 ironlake_pch_transcoder_set_timings(intel_crtc
, pipe
);
4173 intel_fdi_normal_train(crtc
);
4175 /* For PCH DP, enable TRANS_DP_CTL */
4176 if (HAS_PCH_CPT(dev
) && intel_crtc
->config
->has_dp_encoder
) {
4177 u32 bpc
= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) >> 5;
4178 reg
= TRANS_DP_CTL(pipe
);
4179 temp
= I915_READ(reg
);
4180 temp
&= ~(TRANS_DP_PORT_SEL_MASK
|
4181 TRANS_DP_SYNC_MASK
|
4183 temp
|= (TRANS_DP_OUTPUT_ENABLE
|
4184 TRANS_DP_ENH_FRAMING
);
4185 temp
|= bpc
<< 9; /* same format but at 11:9 */
4187 if (crtc
->mode
.flags
& DRM_MODE_FLAG_PHSYNC
)
4188 temp
|= TRANS_DP_HSYNC_ACTIVE_HIGH
;
4189 if (crtc
->mode
.flags
& DRM_MODE_FLAG_PVSYNC
)
4190 temp
|= TRANS_DP_VSYNC_ACTIVE_HIGH
;
4192 switch (intel_trans_dp_port_sel(crtc
)) {
4194 temp
|= TRANS_DP_PORT_SEL_B
;
4197 temp
|= TRANS_DP_PORT_SEL_C
;
4200 temp
|= TRANS_DP_PORT_SEL_D
;
4206 I915_WRITE(reg
, temp
);
4209 ironlake_enable_pch_transcoder(dev_priv
, pipe
);
4212 static void lpt_pch_enable(struct drm_crtc
*crtc
)
4214 struct drm_device
*dev
= crtc
->dev
;
4215 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4216 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4217 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
4219 assert_pch_transcoder_disabled(dev_priv
, TRANSCODER_A
);
4221 lpt_program_iclkip(crtc
);
4223 /* Set transcoder timing. */
4224 ironlake_pch_transcoder_set_timings(intel_crtc
, PIPE_A
);
4226 lpt_enable_pch_transcoder(dev_priv
, cpu_transcoder
);
4229 void intel_put_shared_dpll(struct intel_crtc
*crtc
)
4231 struct intel_shared_dpll
*pll
= intel_crtc_to_shared_dpll(crtc
);
4236 if (!(pll
->config
.crtc_mask
& (1 << crtc
->pipe
))) {
4237 WARN(1, "bad %s crtc mask\n", pll
->name
);
4241 pll
->config
.crtc_mask
&= ~(1 << crtc
->pipe
);
4242 if (pll
->config
.crtc_mask
== 0) {
4244 WARN_ON(pll
->active
);
4247 crtc
->config
->shared_dpll
= DPLL_ID_PRIVATE
;
4250 struct intel_shared_dpll
*intel_get_shared_dpll(struct intel_crtc
*crtc
,
4251 struct intel_crtc_state
*crtc_state
)
4253 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
4254 struct intel_shared_dpll
*pll
;
4255 enum intel_dpll_id i
;
4257 if (HAS_PCH_IBX(dev_priv
->dev
)) {
4258 /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
4259 i
= (enum intel_dpll_id
) crtc
->pipe
;
4260 pll
= &dev_priv
->shared_dplls
[i
];
4262 DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n",
4263 crtc
->base
.base
.id
, pll
->name
);
4265 WARN_ON(pll
->new_config
->crtc_mask
);
4270 if (IS_BROXTON(dev_priv
->dev
)) {
4271 /* PLL is attached to port in bxt */
4272 struct intel_encoder
*encoder
;
4273 struct intel_digital_port
*intel_dig_port
;
4275 encoder
= intel_ddi_get_crtc_new_encoder(crtc_state
);
4276 if (WARN_ON(!encoder
))
4279 intel_dig_port
= enc_to_dig_port(&encoder
->base
);
4280 /* 1:1 mapping between ports and PLLs */
4281 i
= (enum intel_dpll_id
)intel_dig_port
->port
;
4282 pll
= &dev_priv
->shared_dplls
[i
];
4283 DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n",
4284 crtc
->base
.base
.id
, pll
->name
);
4285 WARN_ON(pll
->new_config
->crtc_mask
);
4290 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
4291 pll
= &dev_priv
->shared_dplls
[i
];
4293 /* Only want to check enabled timings first */
4294 if (pll
->new_config
->crtc_mask
== 0)
4297 if (memcmp(&crtc_state
->dpll_hw_state
,
4298 &pll
->new_config
->hw_state
,
4299 sizeof(pll
->new_config
->hw_state
)) == 0) {
4300 DRM_DEBUG_KMS("CRTC:%d sharing existing %s (crtc mask 0x%08x, ative %d)\n",
4301 crtc
->base
.base
.id
, pll
->name
,
4302 pll
->new_config
->crtc_mask
,
4308 /* Ok no matching timings, maybe there's a free one? */
4309 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
4310 pll
= &dev_priv
->shared_dplls
[i
];
4311 if (pll
->new_config
->crtc_mask
== 0) {
4312 DRM_DEBUG_KMS("CRTC:%d allocated %s\n",
4313 crtc
->base
.base
.id
, pll
->name
);
4321 if (pll
->new_config
->crtc_mask
== 0)
4322 pll
->new_config
->hw_state
= crtc_state
->dpll_hw_state
;
4324 crtc_state
->shared_dpll
= i
;
4325 DRM_DEBUG_DRIVER("using %s for pipe %c\n", pll
->name
,
4326 pipe_name(crtc
->pipe
));
4328 pll
->new_config
->crtc_mask
|= 1 << crtc
->pipe
;
4334 * intel_shared_dpll_start_config - start a new PLL staged config
4335 * @dev_priv: DRM device
4336 * @clear_pipes: mask of pipes that will have their PLLs freed
4338 * Starts a new PLL staged config, copying the current config but
4339 * releasing the references of pipes specified in clear_pipes.
4341 static int intel_shared_dpll_start_config(struct drm_i915_private
*dev_priv
,
4342 unsigned clear_pipes
)
4344 struct intel_shared_dpll
*pll
;
4345 enum intel_dpll_id i
;
4347 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
4348 pll
= &dev_priv
->shared_dplls
[i
];
4350 pll
->new_config
= kmemdup(&pll
->config
, sizeof pll
->config
,
4352 if (!pll
->new_config
)
4355 pll
->new_config
->crtc_mask
&= ~clear_pipes
;
4362 pll
= &dev_priv
->shared_dplls
[i
];
4363 kfree(pll
->new_config
);
4364 pll
->new_config
= NULL
;
4370 static void intel_shared_dpll_commit(struct drm_i915_private
*dev_priv
)
4372 struct intel_shared_dpll
*pll
;
4373 enum intel_dpll_id i
;
4375 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
4376 pll
= &dev_priv
->shared_dplls
[i
];
4378 WARN_ON(pll
->new_config
== &pll
->config
);
4380 pll
->config
= *pll
->new_config
;
4381 kfree(pll
->new_config
);
4382 pll
->new_config
= NULL
;
4386 static void intel_shared_dpll_abort_config(struct drm_i915_private
*dev_priv
)
4388 struct intel_shared_dpll
*pll
;
4389 enum intel_dpll_id i
;
4391 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
4392 pll
= &dev_priv
->shared_dplls
[i
];
4394 WARN_ON(pll
->new_config
== &pll
->config
);
4396 kfree(pll
->new_config
);
4397 pll
->new_config
= NULL
;
4401 static void cpt_verify_modeset(struct drm_device
*dev
, int pipe
)
4403 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4404 int dslreg
= PIPEDSL(pipe
);
4407 temp
= I915_READ(dslreg
);
4409 if (wait_for(I915_READ(dslreg
) != temp
, 5)) {
4410 if (wait_for(I915_READ(dslreg
) != temp
, 5))
4411 DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe
));
4416 * skl_update_scaler_users - Stages update to crtc's scaler state
4418 * @crtc_state: crtc_state
4419 * @plane: plane (NULL indicates crtc is requesting update)
4420 * @plane_state: plane's state
4421 * @force_detach: request unconditional detachment of scaler
4423 * This function updates scaler state for requested plane or crtc.
4424 * To request scaler usage update for a plane, caller shall pass plane pointer.
4425 * To request scaler usage update for crtc, caller shall pass plane pointer
4429 * 0 - scaler_usage updated successfully
4430 * error - requested scaling cannot be supported or other error condition
4433 skl_update_scaler_users(
4434 struct intel_crtc
*intel_crtc
, struct intel_crtc_state
*crtc_state
,
4435 struct intel_plane
*intel_plane
, struct intel_plane_state
*plane_state
,
4440 int src_w
, src_h
, dst_w
, dst_h
;
4442 struct drm_framebuffer
*fb
;
4443 struct intel_crtc_scaler_state
*scaler_state
;
4444 unsigned int rotation
;
4446 if (!intel_crtc
|| !crtc_state
)
4449 scaler_state
= &crtc_state
->scaler_state
;
4451 idx
= intel_plane
? drm_plane_index(&intel_plane
->base
) : SKL_CRTC_INDEX
;
4452 fb
= intel_plane
? plane_state
->base
.fb
: NULL
;
4455 src_w
= drm_rect_width(&plane_state
->src
) >> 16;
4456 src_h
= drm_rect_height(&plane_state
->src
) >> 16;
4457 dst_w
= drm_rect_width(&plane_state
->dst
);
4458 dst_h
= drm_rect_height(&plane_state
->dst
);
4459 scaler_id
= &plane_state
->scaler_id
;
4460 rotation
= plane_state
->base
.rotation
;
4462 struct drm_display_mode
*adjusted_mode
=
4463 &crtc_state
->base
.adjusted_mode
;
4464 src_w
= crtc_state
->pipe_src_w
;
4465 src_h
= crtc_state
->pipe_src_h
;
4466 dst_w
= adjusted_mode
->hdisplay
;
4467 dst_h
= adjusted_mode
->vdisplay
;
4468 scaler_id
= &scaler_state
->scaler_id
;
4469 rotation
= DRM_ROTATE_0
;
4472 need_scaling
= intel_rotation_90_or_270(rotation
) ?
4473 (src_h
!= dst_w
|| src_w
!= dst_h
):
4474 (src_w
!= dst_w
|| src_h
!= dst_h
);
4477 * if plane is being disabled or scaler is no more required or force detach
4478 * - free scaler binded to this plane/crtc
4479 * - in order to do this, update crtc->scaler_usage
4481 * Here scaler state in crtc_state is set free so that
4482 * scaler can be assigned to other user. Actual register
4483 * update to free the scaler is done in plane/panel-fit programming.
4484 * For this purpose crtc/plane_state->scaler_id isn't reset here.
4486 if (force_detach
|| !need_scaling
|| (intel_plane
&&
4487 (!fb
|| !plane_state
->visible
))) {
4488 if (*scaler_id
>= 0) {
4489 scaler_state
->scaler_users
&= ~(1 << idx
);
4490 scaler_state
->scalers
[*scaler_id
].in_use
= 0;
4492 DRM_DEBUG_KMS("Staged freeing scaler id %d.%d from %s:%d "
4493 "crtc_state = %p scaler_users = 0x%x\n",
4494 intel_crtc
->pipe
, *scaler_id
, intel_plane
? "PLANE" : "CRTC",
4495 intel_plane
? intel_plane
->base
.base
.id
:
4496 intel_crtc
->base
.base
.id
, crtc_state
,
4497 scaler_state
->scaler_users
);
4504 if (src_w
< SKL_MIN_SRC_W
|| src_h
< SKL_MIN_SRC_H
||
4505 dst_w
< SKL_MIN_DST_W
|| dst_h
< SKL_MIN_DST_H
||
4507 src_w
> SKL_MAX_SRC_W
|| src_h
> SKL_MAX_SRC_H
||
4508 dst_w
> SKL_MAX_DST_W
|| dst_h
> SKL_MAX_DST_H
) {
4509 DRM_DEBUG_KMS("%s:%d scaler_user index %u.%u: src %ux%u dst %ux%u "
4510 "size is out of scaler range\n",
4511 intel_plane
? "PLANE" : "CRTC",
4512 intel_plane
? intel_plane
->base
.base
.id
: intel_crtc
->base
.base
.id
,
4513 intel_crtc
->pipe
, idx
, src_w
, src_h
, dst_w
, dst_h
);
4517 /* check colorkey */
4518 if (intel_plane
&& intel_plane
->ckey
.flags
!= I915_SET_COLORKEY_NONE
) {
4519 DRM_DEBUG_KMS("PLANE:%d scaling with color key not allowed",
4520 intel_plane
->base
.base
.id
);
4524 /* Check src format */
4526 switch (fb
->pixel_format
) {
4527 case DRM_FORMAT_RGB565
:
4528 case DRM_FORMAT_XBGR8888
:
4529 case DRM_FORMAT_XRGB8888
:
4530 case DRM_FORMAT_ABGR8888
:
4531 case DRM_FORMAT_ARGB8888
:
4532 case DRM_FORMAT_XRGB2101010
:
4533 case DRM_FORMAT_ARGB2101010
:
4534 case DRM_FORMAT_XBGR2101010
:
4535 case DRM_FORMAT_ABGR2101010
:
4536 case DRM_FORMAT_YUYV
:
4537 case DRM_FORMAT_YVYU
:
4538 case DRM_FORMAT_UYVY
:
4539 case DRM_FORMAT_VYUY
:
4542 DRM_DEBUG_KMS("PLANE:%d FB:%d unsupported scaling format 0x%x\n",
4543 intel_plane
->base
.base
.id
, fb
->base
.id
, fb
->pixel_format
);
4548 /* mark this plane as a scaler user in crtc_state */
4549 scaler_state
->scaler_users
|= (1 << idx
);
4550 DRM_DEBUG_KMS("%s:%d staged scaling request for %ux%u->%ux%u "
4551 "crtc_state = %p scaler_users = 0x%x\n",
4552 intel_plane
? "PLANE" : "CRTC",
4553 intel_plane
? intel_plane
->base
.base
.id
: intel_crtc
->base
.base
.id
,
4554 src_w
, src_h
, dst_w
, dst_h
, crtc_state
, scaler_state
->scaler_users
);
4558 static void skylake_pfit_update(struct intel_crtc
*crtc
, int enable
)
4560 struct drm_device
*dev
= crtc
->base
.dev
;
4561 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4562 int pipe
= crtc
->pipe
;
4563 struct intel_crtc_scaler_state
*scaler_state
=
4564 &crtc
->config
->scaler_state
;
4566 DRM_DEBUG_KMS("for crtc_state = %p\n", crtc
->config
);
4568 /* To update pfit, first update scaler state */
4569 skl_update_scaler_users(crtc
, crtc
->config
, NULL
, NULL
, !enable
);
4570 intel_atomic_setup_scalers(crtc
->base
.dev
, crtc
, crtc
->config
);
4571 skl_detach_scalers(crtc
);
4575 if (crtc
->config
->pch_pfit
.enabled
) {
4578 if (WARN_ON(crtc
->config
->scaler_state
.scaler_id
< 0)) {
4579 DRM_ERROR("Requesting pfit without getting a scaler first\n");
4583 id
= scaler_state
->scaler_id
;
4584 I915_WRITE(SKL_PS_CTRL(pipe
, id
), PS_SCALER_EN
|
4585 PS_FILTER_MEDIUM
| scaler_state
->scalers
[id
].mode
);
4586 I915_WRITE(SKL_PS_WIN_POS(pipe
, id
), crtc
->config
->pch_pfit
.pos
);
4587 I915_WRITE(SKL_PS_WIN_SZ(pipe
, id
), crtc
->config
->pch_pfit
.size
);
4589 DRM_DEBUG_KMS("for crtc_state = %p scaler_id = %d\n", crtc
->config
, id
);
4593 static void ironlake_pfit_enable(struct intel_crtc
*crtc
)
4595 struct drm_device
*dev
= crtc
->base
.dev
;
4596 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4597 int pipe
= crtc
->pipe
;
4599 if (crtc
->config
->pch_pfit
.enabled
) {
4600 /* Force use of hard-coded filter coefficients
4601 * as some pre-programmed values are broken,
4604 if (IS_IVYBRIDGE(dev
) || IS_HASWELL(dev
))
4605 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
|
4606 PF_PIPE_SEL_IVB(pipe
));
4608 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
);
4609 I915_WRITE(PF_WIN_POS(pipe
), crtc
->config
->pch_pfit
.pos
);
4610 I915_WRITE(PF_WIN_SZ(pipe
), crtc
->config
->pch_pfit
.size
);
4614 static void intel_enable_sprite_planes(struct drm_crtc
*crtc
)
4616 struct drm_device
*dev
= crtc
->dev
;
4617 enum pipe pipe
= to_intel_crtc(crtc
)->pipe
;
4618 struct drm_plane
*plane
;
4619 struct intel_plane
*intel_plane
;
4621 drm_for_each_legacy_plane(plane
, &dev
->mode_config
.plane_list
) {
4622 intel_plane
= to_intel_plane(plane
);
4623 if (intel_plane
->pipe
== pipe
)
4624 intel_plane_restore(&intel_plane
->base
);
4628 void hsw_enable_ips(struct intel_crtc
*crtc
)
4630 struct drm_device
*dev
= crtc
->base
.dev
;
4631 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4633 if (!crtc
->config
->ips_enabled
)
4636 /* We can only enable IPS after we enable a plane and wait for a vblank */
4637 intel_wait_for_vblank(dev
, crtc
->pipe
);
4639 assert_plane_enabled(dev_priv
, crtc
->plane
);
4640 if (IS_BROADWELL(dev
)) {
4641 mutex_lock(&dev_priv
->rps
.hw_lock
);
4642 WARN_ON(sandybridge_pcode_write(dev_priv
, DISPLAY_IPS_CONTROL
, 0xc0000000));
4643 mutex_unlock(&dev_priv
->rps
.hw_lock
);
4644 /* Quoting Art Runyan: "its not safe to expect any particular
4645 * value in IPS_CTL bit 31 after enabling IPS through the
4646 * mailbox." Moreover, the mailbox may return a bogus state,
4647 * so we need to just enable it and continue on.
4650 I915_WRITE(IPS_CTL
, IPS_ENABLE
);
4651 /* The bit only becomes 1 in the next vblank, so this wait here
4652 * is essentially intel_wait_for_vblank. If we don't have this
4653 * and don't wait for vblanks until the end of crtc_enable, then
4654 * the HW state readout code will complain that the expected
4655 * IPS_CTL value is not the one we read. */
4656 if (wait_for(I915_READ_NOTRACE(IPS_CTL
) & IPS_ENABLE
, 50))
4657 DRM_ERROR("Timed out waiting for IPS enable\n");
4661 void hsw_disable_ips(struct intel_crtc
*crtc
)
4663 struct drm_device
*dev
= crtc
->base
.dev
;
4664 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4666 if (!crtc
->config
->ips_enabled
)
4669 assert_plane_enabled(dev_priv
, crtc
->plane
);
4670 if (IS_BROADWELL(dev
)) {
4671 mutex_lock(&dev_priv
->rps
.hw_lock
);
4672 WARN_ON(sandybridge_pcode_write(dev_priv
, DISPLAY_IPS_CONTROL
, 0));
4673 mutex_unlock(&dev_priv
->rps
.hw_lock
);
4674 /* wait for pcode to finish disabling IPS, which may take up to 42ms */
4675 if (wait_for((I915_READ(IPS_CTL
) & IPS_ENABLE
) == 0, 42))
4676 DRM_ERROR("Timed out waiting for IPS disable\n");
4678 I915_WRITE(IPS_CTL
, 0);
4679 POSTING_READ(IPS_CTL
);
4682 /* We need to wait for a vblank before we can disable the plane. */
4683 intel_wait_for_vblank(dev
, crtc
->pipe
);
4686 /** Loads the palette/gamma unit for the CRTC with the prepared values */
4687 static void intel_crtc_load_lut(struct drm_crtc
*crtc
)
4689 struct drm_device
*dev
= crtc
->dev
;
4690 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4691 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4692 enum pipe pipe
= intel_crtc
->pipe
;
4693 int palreg
= PALETTE(pipe
);
4695 bool reenable_ips
= false;
4697 /* The clocks have to be on to load the palette. */
4698 if (!crtc
->state
->enable
|| !intel_crtc
->active
)
4701 if (HAS_GMCH_DISPLAY(dev_priv
->dev
)) {
4702 if (intel_pipe_has_type(intel_crtc
, INTEL_OUTPUT_DSI
))
4703 assert_dsi_pll_enabled(dev_priv
);
4705 assert_pll_enabled(dev_priv
, pipe
);
4708 /* use legacy palette for Ironlake */
4709 if (!HAS_GMCH_DISPLAY(dev
))
4710 palreg
= LGC_PALETTE(pipe
);
4712 /* Workaround : Do not read or write the pipe palette/gamma data while
4713 * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled.
4715 if (IS_HASWELL(dev
) && intel_crtc
->config
->ips_enabled
&&
4716 ((I915_READ(GAMMA_MODE(pipe
)) & GAMMA_MODE_MODE_MASK
) ==
4717 GAMMA_MODE_MODE_SPLIT
)) {
4718 hsw_disable_ips(intel_crtc
);
4719 reenable_ips
= true;
4722 for (i
= 0; i
< 256; i
++) {
4723 I915_WRITE(palreg
+ 4 * i
,
4724 (intel_crtc
->lut_r
[i
] << 16) |
4725 (intel_crtc
->lut_g
[i
] << 8) |
4726 intel_crtc
->lut_b
[i
]);
4730 hsw_enable_ips(intel_crtc
);
4733 static void intel_crtc_dpms_overlay_disable(struct intel_crtc
*intel_crtc
)
4735 if (intel_crtc
->overlay
) {
4736 struct drm_device
*dev
= intel_crtc
->base
.dev
;
4737 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4739 mutex_lock(&dev
->struct_mutex
);
4740 dev_priv
->mm
.interruptible
= false;
4741 (void) intel_overlay_switch_off(intel_crtc
->overlay
);
4742 dev_priv
->mm
.interruptible
= true;
4743 mutex_unlock(&dev
->struct_mutex
);
4746 /* Let userspace switch the overlay on again. In most cases userspace
4747 * has to recompute where to put it anyway.
4752 * intel_post_enable_primary - Perform operations after enabling primary plane
4753 * @crtc: the CRTC whose primary plane was just enabled
4755 * Performs potentially sleeping operations that must be done after the primary
4756 * plane is enabled, such as updating FBC and IPS. Note that this may be
4757 * called due to an explicit primary plane update, or due to an implicit
4758 * re-enable that is caused when a sprite plane is updated to no longer
4759 * completely hide the primary plane.
4762 intel_post_enable_primary(struct drm_crtc
*crtc
)
4764 struct drm_device
*dev
= crtc
->dev
;
4765 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4766 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4767 int pipe
= intel_crtc
->pipe
;
4770 * BDW signals flip done immediately if the plane
4771 * is disabled, even if the plane enable is already
4772 * armed to occur at the next vblank :(
4774 if (IS_BROADWELL(dev
))
4775 intel_wait_for_vblank(dev
, pipe
);
4778 * FIXME IPS should be fine as long as one plane is
4779 * enabled, but in practice it seems to have problems
4780 * when going from primary only to sprite only and vice
4783 hsw_enable_ips(intel_crtc
);
4785 mutex_lock(&dev
->struct_mutex
);
4786 intel_fbc_update(dev
);
4787 mutex_unlock(&dev
->struct_mutex
);
4790 * Gen2 reports pipe underruns whenever all planes are disabled.
4791 * So don't enable underrun reporting before at least some planes
4793 * FIXME: Need to fix the logic to work when we turn off all planes
4794 * but leave the pipe running.
4797 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
4799 /* Underruns don't raise interrupts, so check manually. */
4800 if (HAS_GMCH_DISPLAY(dev
))
4801 i9xx_check_fifo_underruns(dev_priv
);
4805 * intel_pre_disable_primary - Perform operations before disabling primary plane
4806 * @crtc: the CRTC whose primary plane is to be disabled
4808 * Performs potentially sleeping operations that must be done before the
4809 * primary plane is disabled, such as updating FBC and IPS. Note that this may
4810 * be called due to an explicit primary plane update, or due to an implicit
4811 * disable that is caused when a sprite plane completely hides the primary
4815 intel_pre_disable_primary(struct drm_crtc
*crtc
)
4817 struct drm_device
*dev
= crtc
->dev
;
4818 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4819 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4820 int pipe
= intel_crtc
->pipe
;
4823 * Gen2 reports pipe underruns whenever all planes are disabled.
4824 * So diasble underrun reporting before all the planes get disabled.
4825 * FIXME: Need to fix the logic to work when we turn off all planes
4826 * but leave the pipe running.
4829 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, false);
4832 * Vblank time updates from the shadow to live plane control register
4833 * are blocked if the memory self-refresh mode is active at that
4834 * moment. So to make sure the plane gets truly disabled, disable
4835 * first the self-refresh mode. The self-refresh enable bit in turn
4836 * will be checked/applied by the HW only at the next frame start
4837 * event which is after the vblank start event, so we need to have a
4838 * wait-for-vblank between disabling the plane and the pipe.
4840 if (HAS_GMCH_DISPLAY(dev
))
4841 intel_set_memory_cxsr(dev_priv
, false);
4843 mutex_lock(&dev
->struct_mutex
);
4844 if (dev_priv
->fbc
.crtc
== intel_crtc
)
4845 intel_fbc_disable(dev
);
4846 mutex_unlock(&dev
->struct_mutex
);
4849 * FIXME IPS should be fine as long as one plane is
4850 * enabled, but in practice it seems to have problems
4851 * when going from primary only to sprite only and vice
4854 hsw_disable_ips(intel_crtc
);
4857 static void intel_crtc_enable_planes(struct drm_crtc
*crtc
)
4859 intel_enable_primary_hw_plane(crtc
->primary
, crtc
);
4860 intel_enable_sprite_planes(crtc
);
4861 intel_crtc_update_cursor(crtc
, true);
4863 intel_post_enable_primary(crtc
);
4866 static void intel_crtc_disable_planes(struct drm_crtc
*crtc
)
4868 struct drm_device
*dev
= crtc
->dev
;
4869 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4870 struct intel_plane
*intel_plane
;
4871 int pipe
= intel_crtc
->pipe
;
4873 intel_crtc_wait_for_pending_flips(crtc
);
4875 intel_pre_disable_primary(crtc
);
4877 intel_crtc_dpms_overlay_disable(intel_crtc
);
4878 for_each_intel_plane(dev
, intel_plane
) {
4879 if (intel_plane
->pipe
== pipe
) {
4880 struct drm_crtc
*from
= intel_plane
->base
.crtc
;
4882 intel_plane
->disable_plane(&intel_plane
->base
,
4883 from
?: crtc
, true);
4888 * FIXME: Once we grow proper nuclear flip support out of this we need
4889 * to compute the mask of flip planes precisely. For the time being
4890 * consider this a flip to a NULL plane.
4892 intel_frontbuffer_flip(dev
, INTEL_FRONTBUFFER_ALL_MASK(pipe
));
4895 static void ironlake_crtc_enable(struct drm_crtc
*crtc
)
4897 struct drm_device
*dev
= crtc
->dev
;
4898 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4899 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4900 struct intel_encoder
*encoder
;
4901 int pipe
= intel_crtc
->pipe
;
4903 WARN_ON(!crtc
->state
->enable
);
4905 if (intel_crtc
->active
)
4908 if (intel_crtc
->config
->has_pch_encoder
)
4909 intel_prepare_shared_dpll(intel_crtc
);
4911 if (intel_crtc
->config
->has_dp_encoder
)
4912 intel_dp_set_m_n(intel_crtc
, M1_N1
);
4914 intel_set_pipe_timings(intel_crtc
);
4916 if (intel_crtc
->config
->has_pch_encoder
) {
4917 intel_cpu_transcoder_set_m_n(intel_crtc
,
4918 &intel_crtc
->config
->fdi_m_n
, NULL
);
4921 ironlake_set_pipeconf(crtc
);
4923 intel_crtc
->active
= true;
4925 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
4926 intel_set_pch_fifo_underrun_reporting(dev_priv
, pipe
, true);
4928 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4929 if (encoder
->pre_enable
)
4930 encoder
->pre_enable(encoder
);
4932 if (intel_crtc
->config
->has_pch_encoder
) {
4933 /* Note: FDI PLL enabling _must_ be done before we enable the
4934 * cpu pipes, hence this is separate from all the other fdi/pch
4936 ironlake_fdi_pll_enable(intel_crtc
);
4938 assert_fdi_tx_disabled(dev_priv
, pipe
);
4939 assert_fdi_rx_disabled(dev_priv
, pipe
);
4942 ironlake_pfit_enable(intel_crtc
);
4945 * On ILK+ LUT must be loaded before the pipe is running but with
4948 intel_crtc_load_lut(crtc
);
4950 intel_update_watermarks(crtc
);
4951 intel_enable_pipe(intel_crtc
);
4953 if (intel_crtc
->config
->has_pch_encoder
)
4954 ironlake_pch_enable(crtc
);
4956 assert_vblank_disabled(crtc
);
4957 drm_crtc_vblank_on(crtc
);
4959 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4960 encoder
->enable(encoder
);
4962 if (HAS_PCH_CPT(dev
))
4963 cpt_verify_modeset(dev
, intel_crtc
->pipe
);
4966 /* IPS only exists on ULT machines and is tied to pipe A. */
4967 static bool hsw_crtc_supports_ips(struct intel_crtc
*crtc
)
4969 return HAS_IPS(crtc
->base
.dev
) && crtc
->pipe
== PIPE_A
;
4973 * This implements the workaround described in the "notes" section of the mode
4974 * set sequence documentation. When going from no pipes or single pipe to
4975 * multiple pipes, and planes are enabled after the pipe, we need to wait at
4976 * least 2 vblanks on the first pipe before enabling planes on the second pipe.
4978 static void haswell_mode_set_planes_workaround(struct intel_crtc
*crtc
)
4980 struct drm_device
*dev
= crtc
->base
.dev
;
4981 struct intel_crtc
*crtc_it
, *other_active_crtc
= NULL
;
4983 /* We want to get the other_active_crtc only if there's only 1 other
4985 for_each_intel_crtc(dev
, crtc_it
) {
4986 if (!crtc_it
->active
|| crtc_it
== crtc
)
4989 if (other_active_crtc
)
4992 other_active_crtc
= crtc_it
;
4994 if (!other_active_crtc
)
4997 intel_wait_for_vblank(dev
, other_active_crtc
->pipe
);
4998 intel_wait_for_vblank(dev
, other_active_crtc
->pipe
);
5001 static void haswell_crtc_enable(struct drm_crtc
*crtc
)
5003 struct drm_device
*dev
= crtc
->dev
;
5004 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5005 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5006 struct intel_encoder
*encoder
;
5007 int pipe
= intel_crtc
->pipe
;
5009 WARN_ON(!crtc
->state
->enable
);
5011 if (intel_crtc
->active
)
5014 if (intel_crtc_to_shared_dpll(intel_crtc
))
5015 intel_enable_shared_dpll(intel_crtc
);
5017 if (intel_crtc
->config
->has_dp_encoder
)
5018 intel_dp_set_m_n(intel_crtc
, M1_N1
);
5020 intel_set_pipe_timings(intel_crtc
);
5022 if (intel_crtc
->config
->cpu_transcoder
!= TRANSCODER_EDP
) {
5023 I915_WRITE(PIPE_MULT(intel_crtc
->config
->cpu_transcoder
),
5024 intel_crtc
->config
->pixel_multiplier
- 1);
5027 if (intel_crtc
->config
->has_pch_encoder
) {
5028 intel_cpu_transcoder_set_m_n(intel_crtc
,
5029 &intel_crtc
->config
->fdi_m_n
, NULL
);
5032 haswell_set_pipeconf(crtc
);
5034 intel_set_pipe_csc(crtc
);
5036 intel_crtc
->active
= true;
5038 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5039 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5040 if (encoder
->pre_enable
)
5041 encoder
->pre_enable(encoder
);
5043 if (intel_crtc
->config
->has_pch_encoder
) {
5044 intel_set_pch_fifo_underrun_reporting(dev_priv
, TRANSCODER_A
,
5046 dev_priv
->display
.fdi_link_train(crtc
);
5049 intel_ddi_enable_pipe_clock(intel_crtc
);
5051 if (INTEL_INFO(dev
)->gen
== 9)
5052 skylake_pfit_update(intel_crtc
, 1);
5053 else if (INTEL_INFO(dev
)->gen
< 9)
5054 ironlake_pfit_enable(intel_crtc
);
5056 MISSING_CASE(INTEL_INFO(dev
)->gen
);
5059 * On ILK+ LUT must be loaded before the pipe is running but with
5062 intel_crtc_load_lut(crtc
);
5064 intel_ddi_set_pipe_settings(crtc
);
5065 intel_ddi_enable_transcoder_func(crtc
);
5067 intel_update_watermarks(crtc
);
5068 intel_enable_pipe(intel_crtc
);
5070 if (intel_crtc
->config
->has_pch_encoder
)
5071 lpt_pch_enable(crtc
);
5073 if (intel_crtc
->config
->dp_encoder_is_mst
)
5074 intel_ddi_set_vc_payload_alloc(crtc
, true);
5076 assert_vblank_disabled(crtc
);
5077 drm_crtc_vblank_on(crtc
);
5079 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
5080 encoder
->enable(encoder
);
5081 intel_opregion_notify_encoder(encoder
, true);
5084 /* If we change the relative order between pipe/planes enabling, we need
5085 * to change the workaround. */
5086 haswell_mode_set_planes_workaround(intel_crtc
);
5089 static void ironlake_pfit_disable(struct intel_crtc
*crtc
)
5091 struct drm_device
*dev
= crtc
->base
.dev
;
5092 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5093 int pipe
= crtc
->pipe
;
5095 /* To avoid upsetting the power well on haswell only disable the pfit if
5096 * it's in use. The hw state code will make sure we get this right. */
5097 if (crtc
->config
->pch_pfit
.enabled
) {
5098 I915_WRITE(PF_CTL(pipe
), 0);
5099 I915_WRITE(PF_WIN_POS(pipe
), 0);
5100 I915_WRITE(PF_WIN_SZ(pipe
), 0);
5104 static void ironlake_crtc_disable(struct drm_crtc
*crtc
)
5106 struct drm_device
*dev
= crtc
->dev
;
5107 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5108 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5109 struct intel_encoder
*encoder
;
5110 int pipe
= intel_crtc
->pipe
;
5113 if (!intel_crtc
->active
)
5116 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5117 encoder
->disable(encoder
);
5119 drm_crtc_vblank_off(crtc
);
5120 assert_vblank_disabled(crtc
);
5122 if (intel_crtc
->config
->has_pch_encoder
)
5123 intel_set_pch_fifo_underrun_reporting(dev_priv
, pipe
, false);
5125 intel_disable_pipe(intel_crtc
);
5127 ironlake_pfit_disable(intel_crtc
);
5129 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5130 if (encoder
->post_disable
)
5131 encoder
->post_disable(encoder
);
5133 if (intel_crtc
->config
->has_pch_encoder
) {
5134 ironlake_fdi_disable(crtc
);
5136 ironlake_disable_pch_transcoder(dev_priv
, pipe
);
5138 if (HAS_PCH_CPT(dev
)) {
5139 /* disable TRANS_DP_CTL */
5140 reg
= TRANS_DP_CTL(pipe
);
5141 temp
= I915_READ(reg
);
5142 temp
&= ~(TRANS_DP_OUTPUT_ENABLE
|
5143 TRANS_DP_PORT_SEL_MASK
);
5144 temp
|= TRANS_DP_PORT_SEL_NONE
;
5145 I915_WRITE(reg
, temp
);
5147 /* disable DPLL_SEL */
5148 temp
= I915_READ(PCH_DPLL_SEL
);
5149 temp
&= ~(TRANS_DPLL_ENABLE(pipe
) | TRANS_DPLLB_SEL(pipe
));
5150 I915_WRITE(PCH_DPLL_SEL
, temp
);
5153 /* disable PCH DPLL */
5154 intel_disable_shared_dpll(intel_crtc
);
5156 ironlake_fdi_pll_disable(intel_crtc
);
5159 intel_crtc
->active
= false;
5160 intel_update_watermarks(crtc
);
5162 mutex_lock(&dev
->struct_mutex
);
5163 intel_fbc_update(dev
);
5164 mutex_unlock(&dev
->struct_mutex
);
5167 static void haswell_crtc_disable(struct drm_crtc
*crtc
)
5169 struct drm_device
*dev
= crtc
->dev
;
5170 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5171 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5172 struct intel_encoder
*encoder
;
5173 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
5175 if (!intel_crtc
->active
)
5178 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
5179 intel_opregion_notify_encoder(encoder
, false);
5180 encoder
->disable(encoder
);
5183 drm_crtc_vblank_off(crtc
);
5184 assert_vblank_disabled(crtc
);
5186 if (intel_crtc
->config
->has_pch_encoder
)
5187 intel_set_pch_fifo_underrun_reporting(dev_priv
, TRANSCODER_A
,
5189 intel_disable_pipe(intel_crtc
);
5191 if (intel_crtc
->config
->dp_encoder_is_mst
)
5192 intel_ddi_set_vc_payload_alloc(crtc
, false);
5194 intel_ddi_disable_transcoder_func(dev_priv
, cpu_transcoder
);
5196 if (INTEL_INFO(dev
)->gen
== 9)
5197 skylake_pfit_update(intel_crtc
, 0);
5198 else if (INTEL_INFO(dev
)->gen
< 9)
5199 ironlake_pfit_disable(intel_crtc
);
5201 MISSING_CASE(INTEL_INFO(dev
)->gen
);
5203 intel_ddi_disable_pipe_clock(intel_crtc
);
5205 if (intel_crtc
->config
->has_pch_encoder
) {
5206 lpt_disable_pch_transcoder(dev_priv
);
5207 intel_ddi_fdi_disable(crtc
);
5210 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5211 if (encoder
->post_disable
)
5212 encoder
->post_disable(encoder
);
5214 intel_crtc
->active
= false;
5215 intel_update_watermarks(crtc
);
5217 mutex_lock(&dev
->struct_mutex
);
5218 intel_fbc_update(dev
);
5219 mutex_unlock(&dev
->struct_mutex
);
5221 if (intel_crtc_to_shared_dpll(intel_crtc
))
5222 intel_disable_shared_dpll(intel_crtc
);
5225 static void ironlake_crtc_off(struct drm_crtc
*crtc
)
5227 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5228 intel_put_shared_dpll(intel_crtc
);
5232 static void i9xx_pfit_enable(struct intel_crtc
*crtc
)
5234 struct drm_device
*dev
= crtc
->base
.dev
;
5235 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5236 struct intel_crtc_state
*pipe_config
= crtc
->config
;
5238 if (!pipe_config
->gmch_pfit
.control
)
5242 * The panel fitter should only be adjusted whilst the pipe is disabled,
5243 * according to register description and PRM.
5245 WARN_ON(I915_READ(PFIT_CONTROL
) & PFIT_ENABLE
);
5246 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
5248 I915_WRITE(PFIT_PGM_RATIOS
, pipe_config
->gmch_pfit
.pgm_ratios
);
5249 I915_WRITE(PFIT_CONTROL
, pipe_config
->gmch_pfit
.control
);
5251 /* Border color in case we don't scale up to the full screen. Black by
5252 * default, change to something else for debugging. */
5253 I915_WRITE(BCLRPAT(crtc
->pipe
), 0);
5256 static enum intel_display_power_domain
port_to_power_domain(enum port port
)
5260 return POWER_DOMAIN_PORT_DDI_A_4_LANES
;
5262 return POWER_DOMAIN_PORT_DDI_B_4_LANES
;
5264 return POWER_DOMAIN_PORT_DDI_C_4_LANES
;
5266 return POWER_DOMAIN_PORT_DDI_D_4_LANES
;
5269 return POWER_DOMAIN_PORT_OTHER
;
5273 #define for_each_power_domain(domain, mask) \
5274 for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
5275 if ((1 << (domain)) & (mask))
5277 enum intel_display_power_domain
5278 intel_display_port_power_domain(struct intel_encoder
*intel_encoder
)
5280 struct drm_device
*dev
= intel_encoder
->base
.dev
;
5281 struct intel_digital_port
*intel_dig_port
;
5283 switch (intel_encoder
->type
) {
5284 case INTEL_OUTPUT_UNKNOWN
:
5285 /* Only DDI platforms should ever use this output type */
5286 WARN_ON_ONCE(!HAS_DDI(dev
));
5287 case INTEL_OUTPUT_DISPLAYPORT
:
5288 case INTEL_OUTPUT_HDMI
:
5289 case INTEL_OUTPUT_EDP
:
5290 intel_dig_port
= enc_to_dig_port(&intel_encoder
->base
);
5291 return port_to_power_domain(intel_dig_port
->port
);
5292 case INTEL_OUTPUT_DP_MST
:
5293 intel_dig_port
= enc_to_mst(&intel_encoder
->base
)->primary
;
5294 return port_to_power_domain(intel_dig_port
->port
);
5295 case INTEL_OUTPUT_ANALOG
:
5296 return POWER_DOMAIN_PORT_CRT
;
5297 case INTEL_OUTPUT_DSI
:
5298 return POWER_DOMAIN_PORT_DSI
;
5300 return POWER_DOMAIN_PORT_OTHER
;
5304 static unsigned long get_crtc_power_domains(struct drm_crtc
*crtc
)
5306 struct drm_device
*dev
= crtc
->dev
;
5307 struct intel_encoder
*intel_encoder
;
5308 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5309 enum pipe pipe
= intel_crtc
->pipe
;
5311 enum transcoder transcoder
;
5313 transcoder
= intel_pipe_to_cpu_transcoder(dev
->dev_private
, pipe
);
5315 mask
= BIT(POWER_DOMAIN_PIPE(pipe
));
5316 mask
|= BIT(POWER_DOMAIN_TRANSCODER(transcoder
));
5317 if (intel_crtc
->config
->pch_pfit
.enabled
||
5318 intel_crtc
->config
->pch_pfit
.force_thru
)
5319 mask
|= BIT(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe
));
5321 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
)
5322 mask
|= BIT(intel_display_port_power_domain(intel_encoder
));
5327 static void modeset_update_crtc_power_domains(struct drm_atomic_state
*state
)
5329 struct drm_device
*dev
= state
->dev
;
5330 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5331 unsigned long pipe_domains
[I915_MAX_PIPES
] = { 0, };
5332 struct intel_crtc
*crtc
;
5335 * First get all needed power domains, then put all unneeded, to avoid
5336 * any unnecessary toggling of the power wells.
5338 for_each_intel_crtc(dev
, crtc
) {
5339 enum intel_display_power_domain domain
;
5341 if (!crtc
->base
.state
->enable
)
5344 pipe_domains
[crtc
->pipe
] = get_crtc_power_domains(&crtc
->base
);
5346 for_each_power_domain(domain
, pipe_domains
[crtc
->pipe
])
5347 intel_display_power_get(dev_priv
, domain
);
5350 if (dev_priv
->display
.modeset_global_resources
)
5351 dev_priv
->display
.modeset_global_resources(state
);
5353 for_each_intel_crtc(dev
, crtc
) {
5354 enum intel_display_power_domain domain
;
5356 for_each_power_domain(domain
, crtc
->enabled_power_domains
)
5357 intel_display_power_put(dev_priv
, domain
);
5359 crtc
->enabled_power_domains
= pipe_domains
[crtc
->pipe
];
5362 intel_display_set_init_power(dev_priv
, false);
5365 void broxton_set_cdclk(struct drm_device
*dev
, int frequency
)
5367 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5370 uint32_t current_freq
;
5373 /* frequency = 19.2MHz * ratio / 2 / div{1,1.5,2,4} */
5374 switch (frequency
) {
5376 divider
= BXT_CDCLK_CD2X_DIV_SEL_4
;
5377 ratio
= BXT_DE_PLL_RATIO(60);
5380 divider
= BXT_CDCLK_CD2X_DIV_SEL_2
;
5381 ratio
= BXT_DE_PLL_RATIO(60);
5384 divider
= BXT_CDCLK_CD2X_DIV_SEL_1_5
;
5385 ratio
= BXT_DE_PLL_RATIO(60);
5388 divider
= BXT_CDCLK_CD2X_DIV_SEL_1
;
5389 ratio
= BXT_DE_PLL_RATIO(60);
5392 divider
= BXT_CDCLK_CD2X_DIV_SEL_1
;
5393 ratio
= BXT_DE_PLL_RATIO(65);
5397 * Bypass frequency with DE PLL disabled. Init ratio, divider
5398 * to suppress GCC warning.
5404 DRM_ERROR("unsupported CDCLK freq %d", frequency
);
5409 mutex_lock(&dev_priv
->rps
.hw_lock
);
5410 /* Inform power controller of upcoming frequency change */
5411 ret
= sandybridge_pcode_write(dev_priv
, HSW_PCODE_DE_WRITE_FREQ_REQ
,
5413 mutex_unlock(&dev_priv
->rps
.hw_lock
);
5416 DRM_ERROR("PCode CDCLK freq change notify failed (err %d, freq %d)\n",
5421 current_freq
= I915_READ(CDCLK_CTL
) & CDCLK_FREQ_DECIMAL_MASK
;
5422 /* convert from .1 fixpoint MHz with -1MHz offset to kHz */
5423 current_freq
= current_freq
* 500 + 1000;
5426 * DE PLL has to be disabled when
5427 * - setting to 19.2MHz (bypass, PLL isn't used)
5428 * - before setting to 624MHz (PLL needs toggling)
5429 * - before setting to any frequency from 624MHz (PLL needs toggling)
5431 if (frequency
== 19200 || frequency
== 624000 ||
5432 current_freq
== 624000) {
5433 I915_WRITE(BXT_DE_PLL_ENABLE
, ~BXT_DE_PLL_PLL_ENABLE
);
5435 if (wait_for(!(I915_READ(BXT_DE_PLL_ENABLE
) & BXT_DE_PLL_LOCK
),
5437 DRM_ERROR("timout waiting for DE PLL unlock\n");
5440 if (frequency
!= 19200) {
5443 val
= I915_READ(BXT_DE_PLL_CTL
);
5444 val
&= ~BXT_DE_PLL_RATIO_MASK
;
5446 I915_WRITE(BXT_DE_PLL_CTL
, val
);
5448 I915_WRITE(BXT_DE_PLL_ENABLE
, BXT_DE_PLL_PLL_ENABLE
);
5450 if (wait_for(I915_READ(BXT_DE_PLL_ENABLE
) & BXT_DE_PLL_LOCK
, 1))
5451 DRM_ERROR("timeout waiting for DE PLL lock\n");
5453 val
= I915_READ(CDCLK_CTL
);
5454 val
&= ~BXT_CDCLK_CD2X_DIV_SEL_MASK
;
5457 * Disable SSA Precharge when CD clock frequency < 500 MHz,
5460 val
&= ~BXT_CDCLK_SSA_PRECHARGE_ENABLE
;
5461 if (frequency
>= 500000)
5462 val
|= BXT_CDCLK_SSA_PRECHARGE_ENABLE
;
5464 val
&= ~CDCLK_FREQ_DECIMAL_MASK
;
5465 /* convert from kHz to .1 fixpoint MHz with -1MHz offset */
5466 val
|= (frequency
- 1000) / 500;
5467 I915_WRITE(CDCLK_CTL
, val
);
5470 mutex_lock(&dev_priv
->rps
.hw_lock
);
5471 ret
= sandybridge_pcode_write(dev_priv
, HSW_PCODE_DE_WRITE_FREQ_REQ
,
5472 DIV_ROUND_UP(frequency
, 25000));
5473 mutex_unlock(&dev_priv
->rps
.hw_lock
);
5476 DRM_ERROR("PCode CDCLK freq set failed, (err %d, freq %d)\n",
5481 dev_priv
->cdclk_freq
= frequency
;
5484 void broxton_init_cdclk(struct drm_device
*dev
)
5486 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5490 * NDE_RSTWRN_OPT RST PCH Handshake En must always be 0b on BXT
5491 * or else the reset will hang because there is no PCH to respond.
5492 * Move the handshake programming to initialization sequence.
5493 * Previously was left up to BIOS.
5495 val
= I915_READ(HSW_NDE_RSTWRN_OPT
);
5496 val
&= ~RESET_PCH_HANDSHAKE_ENABLE
;
5497 I915_WRITE(HSW_NDE_RSTWRN_OPT
, val
);
5499 /* Enable PG1 for cdclk */
5500 intel_display_power_get(dev_priv
, POWER_DOMAIN_PLLS
);
5502 /* check if cd clock is enabled */
5503 if (I915_READ(BXT_DE_PLL_ENABLE
) & BXT_DE_PLL_PLL_ENABLE
) {
5504 DRM_DEBUG_KMS("Display already initialized\n");
5510 * - The initial CDCLK needs to be read from VBT.
5511 * Need to make this change after VBT has changes for BXT.
5512 * - check if setting the max (or any) cdclk freq is really necessary
5513 * here, it belongs to modeset time
5515 broxton_set_cdclk(dev
, 624000);
5517 I915_WRITE(DBUF_CTL
, I915_READ(DBUF_CTL
) | DBUF_POWER_REQUEST
);
5518 POSTING_READ(DBUF_CTL
);
5522 if (!(I915_READ(DBUF_CTL
) & DBUF_POWER_STATE
))
5523 DRM_ERROR("DBuf power enable timeout!\n");
5526 void broxton_uninit_cdclk(struct drm_device
*dev
)
5528 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5530 I915_WRITE(DBUF_CTL
, I915_READ(DBUF_CTL
) & ~DBUF_POWER_REQUEST
);
5531 POSTING_READ(DBUF_CTL
);
5535 if (I915_READ(DBUF_CTL
) & DBUF_POWER_STATE
)
5536 DRM_ERROR("DBuf power disable timeout!\n");
5538 /* Set minimum (bypass) frequency, in effect turning off the DE PLL */
5539 broxton_set_cdclk(dev
, 19200);
5541 intel_display_power_put(dev_priv
, POWER_DOMAIN_PLLS
);
5544 /* returns HPLL frequency in kHz */
5545 static int valleyview_get_vco(struct drm_i915_private
*dev_priv
)
5547 int hpll_freq
, vco_freq
[] = { 800, 1600, 2000, 2400 };
5549 /* Obtain SKU information */
5550 mutex_lock(&dev_priv
->dpio_lock
);
5551 hpll_freq
= vlv_cck_read(dev_priv
, CCK_FUSE_REG
) &
5552 CCK_FUSE_HPLL_FREQ_MASK
;
5553 mutex_unlock(&dev_priv
->dpio_lock
);
5555 return vco_freq
[hpll_freq
] * 1000;
5558 static void vlv_update_cdclk(struct drm_device
*dev
)
5560 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5562 dev_priv
->cdclk_freq
= dev_priv
->display
.get_display_clock_speed(dev
);
5563 DRM_DEBUG_DRIVER("Current CD clock rate: %d kHz\n",
5564 dev_priv
->cdclk_freq
);
5567 * Program the gmbus_freq based on the cdclk frequency.
5568 * BSpec erroneously claims we should aim for 4MHz, but
5569 * in fact 1MHz is the correct frequency.
5571 I915_WRITE(GMBUSFREQ_VLV
, DIV_ROUND_UP(dev_priv
->cdclk_freq
, 1000));
5574 /* Adjust CDclk dividers to allow high res or save power if possible */
5575 static void valleyview_set_cdclk(struct drm_device
*dev
, int cdclk
)
5577 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5580 WARN_ON(dev_priv
->display
.get_display_clock_speed(dev
)
5581 != dev_priv
->cdclk_freq
);
5583 if (cdclk
>= 320000) /* jump to highest voltage for 400MHz too */
5585 else if (cdclk
== 266667)
5590 mutex_lock(&dev_priv
->rps
.hw_lock
);
5591 val
= vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
);
5592 val
&= ~DSPFREQGUAR_MASK
;
5593 val
|= (cmd
<< DSPFREQGUAR_SHIFT
);
5594 vlv_punit_write(dev_priv
, PUNIT_REG_DSPFREQ
, val
);
5595 if (wait_for((vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
) &
5596 DSPFREQSTAT_MASK
) == (cmd
<< DSPFREQSTAT_SHIFT
),
5598 DRM_ERROR("timed out waiting for CDclk change\n");
5600 mutex_unlock(&dev_priv
->rps
.hw_lock
);
5602 if (cdclk
== 400000) {
5605 divider
= DIV_ROUND_CLOSEST(dev_priv
->hpll_freq
<< 1, cdclk
) - 1;
5607 mutex_lock(&dev_priv
->dpio_lock
);
5608 /* adjust cdclk divider */
5609 val
= vlv_cck_read(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
);
5610 val
&= ~DISPLAY_FREQUENCY_VALUES
;
5612 vlv_cck_write(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
, val
);
5614 if (wait_for((vlv_cck_read(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
) &
5615 DISPLAY_FREQUENCY_STATUS
) == (divider
<< DISPLAY_FREQUENCY_STATUS_SHIFT
),
5617 DRM_ERROR("timed out waiting for CDclk change\n");
5618 mutex_unlock(&dev_priv
->dpio_lock
);
5621 mutex_lock(&dev_priv
->dpio_lock
);
5622 /* adjust self-refresh exit latency value */
5623 val
= vlv_bunit_read(dev_priv
, BUNIT_REG_BISOC
);
5627 * For high bandwidth configs, we set a higher latency in the bunit
5628 * so that the core display fetch happens in time to avoid underruns.
5630 if (cdclk
== 400000)
5631 val
|= 4500 / 250; /* 4.5 usec */
5633 val
|= 3000 / 250; /* 3.0 usec */
5634 vlv_bunit_write(dev_priv
, BUNIT_REG_BISOC
, val
);
5635 mutex_unlock(&dev_priv
->dpio_lock
);
5637 vlv_update_cdclk(dev
);
5640 static void cherryview_set_cdclk(struct drm_device
*dev
, int cdclk
)
5642 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5645 WARN_ON(dev_priv
->display
.get_display_clock_speed(dev
)
5646 != dev_priv
->cdclk_freq
);
5655 MISSING_CASE(cdclk
);
5660 * Specs are full of misinformation, but testing on actual
5661 * hardware has shown that we just need to write the desired
5662 * CCK divider into the Punit register.
5664 cmd
= DIV_ROUND_CLOSEST(dev_priv
->hpll_freq
<< 1, cdclk
) - 1;
5666 mutex_lock(&dev_priv
->rps
.hw_lock
);
5667 val
= vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
);
5668 val
&= ~DSPFREQGUAR_MASK_CHV
;
5669 val
|= (cmd
<< DSPFREQGUAR_SHIFT_CHV
);
5670 vlv_punit_write(dev_priv
, PUNIT_REG_DSPFREQ
, val
);
5671 if (wait_for((vlv_punit_read(dev_priv
, PUNIT_REG_DSPFREQ
) &
5672 DSPFREQSTAT_MASK_CHV
) == (cmd
<< DSPFREQSTAT_SHIFT_CHV
),
5674 DRM_ERROR("timed out waiting for CDclk change\n");
5676 mutex_unlock(&dev_priv
->rps
.hw_lock
);
5678 vlv_update_cdclk(dev
);
5681 static int valleyview_calc_cdclk(struct drm_i915_private
*dev_priv
,
5684 int freq_320
= (dev_priv
->hpll_freq
<< 1) % 320000 != 0 ? 333333 : 320000;
5685 int limit
= IS_CHERRYVIEW(dev_priv
) ? 95 : 90;
5688 * Really only a few cases to deal with, as only 4 CDclks are supported:
5691 * 320/333MHz (depends on HPLL freq)
5693 * So we check to see whether we're above 90% (VLV) or 95% (CHV)
5694 * of the lower bin and adjust if needed.
5696 * We seem to get an unstable or solid color picture at 200MHz.
5697 * Not sure what's wrong. For now use 200MHz only when all pipes
5700 if (!IS_CHERRYVIEW(dev_priv
) &&
5701 max_pixclk
> freq_320
*limit
/100)
5703 else if (max_pixclk
> 266667*limit
/100)
5705 else if (max_pixclk
> 0)
5711 static int broxton_calc_cdclk(struct drm_i915_private
*dev_priv
,
5716 * - remove the guardband, it's not needed on BXT
5717 * - set 19.2MHz bypass frequency if there are no active pipes
5719 if (max_pixclk
> 576000*9/10)
5721 else if (max_pixclk
> 384000*9/10)
5723 else if (max_pixclk
> 288000*9/10)
5725 else if (max_pixclk
> 144000*9/10)
5731 /* Compute the max pixel clock for new configuration. Uses atomic state if
5732 * that's non-NULL, look at current state otherwise. */
5733 static int intel_mode_max_pixclk(struct drm_device
*dev
,
5734 struct drm_atomic_state
*state
)
5736 struct intel_crtc
*intel_crtc
;
5737 struct intel_crtc_state
*crtc_state
;
5740 for_each_intel_crtc(dev
, intel_crtc
) {
5743 intel_atomic_get_crtc_state(state
, intel_crtc
);
5745 crtc_state
= intel_crtc
->config
;
5746 if (IS_ERR(crtc_state
))
5747 return PTR_ERR(crtc_state
);
5749 if (!crtc_state
->base
.enable
)
5752 max_pixclk
= max(max_pixclk
,
5753 crtc_state
->base
.adjusted_mode
.crtc_clock
);
5759 static int valleyview_modeset_global_pipes(struct drm_atomic_state
*state
)
5761 struct drm_i915_private
*dev_priv
= to_i915(state
->dev
);
5762 struct drm_crtc
*crtc
;
5763 struct drm_crtc_state
*crtc_state
;
5764 int max_pixclk
= intel_mode_max_pixclk(state
->dev
, state
);
5770 if (IS_VALLEYVIEW(dev_priv
))
5771 cdclk
= valleyview_calc_cdclk(dev_priv
, max_pixclk
);
5773 cdclk
= broxton_calc_cdclk(dev_priv
, max_pixclk
);
5775 if (cdclk
== dev_priv
->cdclk_freq
)
5778 /* add all active pipes to the state */
5779 for_each_crtc(state
->dev
, crtc
) {
5780 if (!crtc
->state
->enable
)
5783 crtc_state
= drm_atomic_get_crtc_state(state
, crtc
);
5784 if (IS_ERR(crtc_state
))
5785 return PTR_ERR(crtc_state
);
5788 /* disable/enable all currently active pipes while we change cdclk */
5789 for_each_crtc_in_state(state
, crtc
, crtc_state
, i
)
5790 if (crtc_state
->enable
)
5791 crtc_state
->mode_changed
= true;
5796 static void vlv_program_pfi_credits(struct drm_i915_private
*dev_priv
)
5798 unsigned int credits
, default_credits
;
5800 if (IS_CHERRYVIEW(dev_priv
))
5801 default_credits
= PFI_CREDIT(12);
5803 default_credits
= PFI_CREDIT(8);
5805 if (DIV_ROUND_CLOSEST(dev_priv
->cdclk_freq
, 1000) >= dev_priv
->rps
.cz_freq
) {
5806 /* CHV suggested value is 31 or 63 */
5807 if (IS_CHERRYVIEW(dev_priv
))
5808 credits
= PFI_CREDIT_31
;
5810 credits
= PFI_CREDIT(15);
5812 credits
= default_credits
;
5816 * WA - write default credits before re-programming
5817 * FIXME: should we also set the resend bit here?
5819 I915_WRITE(GCI_CONTROL
, VGA_FAST_MODE_DISABLE
|
5822 I915_WRITE(GCI_CONTROL
, VGA_FAST_MODE_DISABLE
|
5823 credits
| PFI_CREDIT_RESEND
);
5826 * FIXME is this guaranteed to clear
5827 * immediately or should we poll for it?
5829 WARN_ON(I915_READ(GCI_CONTROL
) & PFI_CREDIT_RESEND
);
5832 static void valleyview_modeset_global_resources(struct drm_atomic_state
*old_state
)
5834 struct drm_device
*dev
= old_state
->dev
;
5835 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5836 int max_pixclk
= intel_mode_max_pixclk(dev
, NULL
);
5839 /* The path in intel_mode_max_pixclk() with a NULL atomic state should
5841 if (WARN_ON(max_pixclk
< 0))
5844 req_cdclk
= valleyview_calc_cdclk(dev_priv
, max_pixclk
);
5846 if (req_cdclk
!= dev_priv
->cdclk_freq
) {
5848 * FIXME: We can end up here with all power domains off, yet
5849 * with a CDCLK frequency other than the minimum. To account
5850 * for this take the PIPE-A power domain, which covers the HW
5851 * blocks needed for the following programming. This can be
5852 * removed once it's guaranteed that we get here either with
5853 * the minimum CDCLK set, or the required power domains
5856 intel_display_power_get(dev_priv
, POWER_DOMAIN_PIPE_A
);
5858 if (IS_CHERRYVIEW(dev
))
5859 cherryview_set_cdclk(dev
, req_cdclk
);
5861 valleyview_set_cdclk(dev
, req_cdclk
);
5863 vlv_program_pfi_credits(dev_priv
);
5865 intel_display_power_put(dev_priv
, POWER_DOMAIN_PIPE_A
);
5869 static void valleyview_crtc_enable(struct drm_crtc
*crtc
)
5871 struct drm_device
*dev
= crtc
->dev
;
5872 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5873 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5874 struct intel_encoder
*encoder
;
5875 int pipe
= intel_crtc
->pipe
;
5878 WARN_ON(!crtc
->state
->enable
);
5880 if (intel_crtc
->active
)
5883 is_dsi
= intel_pipe_has_type(intel_crtc
, INTEL_OUTPUT_DSI
);
5886 if (IS_CHERRYVIEW(dev
))
5887 chv_prepare_pll(intel_crtc
, intel_crtc
->config
);
5889 vlv_prepare_pll(intel_crtc
, intel_crtc
->config
);
5892 if (intel_crtc
->config
->has_dp_encoder
)
5893 intel_dp_set_m_n(intel_crtc
, M1_N1
);
5895 intel_set_pipe_timings(intel_crtc
);
5897 if (IS_CHERRYVIEW(dev
) && pipe
== PIPE_B
) {
5898 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5900 I915_WRITE(CHV_BLEND(pipe
), CHV_BLEND_LEGACY
);
5901 I915_WRITE(CHV_CANVAS(pipe
), 0);
5904 i9xx_set_pipeconf(intel_crtc
);
5906 intel_crtc
->active
= true;
5908 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5910 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5911 if (encoder
->pre_pll_enable
)
5912 encoder
->pre_pll_enable(encoder
);
5915 if (IS_CHERRYVIEW(dev
))
5916 chv_enable_pll(intel_crtc
, intel_crtc
->config
);
5918 vlv_enable_pll(intel_crtc
, intel_crtc
->config
);
5921 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5922 if (encoder
->pre_enable
)
5923 encoder
->pre_enable(encoder
);
5925 i9xx_pfit_enable(intel_crtc
);
5927 intel_crtc_load_lut(crtc
);
5929 intel_update_watermarks(crtc
);
5930 intel_enable_pipe(intel_crtc
);
5932 assert_vblank_disabled(crtc
);
5933 drm_crtc_vblank_on(crtc
);
5935 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5936 encoder
->enable(encoder
);
5939 static void i9xx_set_pll_dividers(struct intel_crtc
*crtc
)
5941 struct drm_device
*dev
= crtc
->base
.dev
;
5942 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5944 I915_WRITE(FP0(crtc
->pipe
), crtc
->config
->dpll_hw_state
.fp0
);
5945 I915_WRITE(FP1(crtc
->pipe
), crtc
->config
->dpll_hw_state
.fp1
);
5948 static void i9xx_crtc_enable(struct drm_crtc
*crtc
)
5950 struct drm_device
*dev
= crtc
->dev
;
5951 struct drm_i915_private
*dev_priv
= to_i915(dev
);
5952 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5953 struct intel_encoder
*encoder
;
5954 int pipe
= intel_crtc
->pipe
;
5956 WARN_ON(!crtc
->state
->enable
);
5958 if (intel_crtc
->active
)
5961 i9xx_set_pll_dividers(intel_crtc
);
5963 if (intel_crtc
->config
->has_dp_encoder
)
5964 intel_dp_set_m_n(intel_crtc
, M1_N1
);
5966 intel_set_pipe_timings(intel_crtc
);
5968 i9xx_set_pipeconf(intel_crtc
);
5970 intel_crtc
->active
= true;
5973 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, true);
5975 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5976 if (encoder
->pre_enable
)
5977 encoder
->pre_enable(encoder
);
5979 i9xx_enable_pll(intel_crtc
);
5981 i9xx_pfit_enable(intel_crtc
);
5983 intel_crtc_load_lut(crtc
);
5985 intel_update_watermarks(crtc
);
5986 intel_enable_pipe(intel_crtc
);
5988 assert_vblank_disabled(crtc
);
5989 drm_crtc_vblank_on(crtc
);
5991 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5992 encoder
->enable(encoder
);
5995 static void i9xx_pfit_disable(struct intel_crtc
*crtc
)
5997 struct drm_device
*dev
= crtc
->base
.dev
;
5998 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6000 if (!crtc
->config
->gmch_pfit
.control
)
6003 assert_pipe_disabled(dev_priv
, crtc
->pipe
);
6005 DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n",
6006 I915_READ(PFIT_CONTROL
));
6007 I915_WRITE(PFIT_CONTROL
, 0);
6010 static void i9xx_crtc_disable(struct drm_crtc
*crtc
)
6012 struct drm_device
*dev
= crtc
->dev
;
6013 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6014 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6015 struct intel_encoder
*encoder
;
6016 int pipe
= intel_crtc
->pipe
;
6018 if (!intel_crtc
->active
)
6022 * On gen2 planes are double buffered but the pipe isn't, so we must
6023 * wait for planes to fully turn off before disabling the pipe.
6024 * We also need to wait on all gmch platforms because of the
6025 * self-refresh mode constraint explained above.
6027 intel_wait_for_vblank(dev
, pipe
);
6029 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
6030 encoder
->disable(encoder
);
6032 drm_crtc_vblank_off(crtc
);
6033 assert_vblank_disabled(crtc
);
6035 intel_disable_pipe(intel_crtc
);
6037 i9xx_pfit_disable(intel_crtc
);
6039 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
6040 if (encoder
->post_disable
)
6041 encoder
->post_disable(encoder
);
6043 if (!intel_pipe_has_type(intel_crtc
, INTEL_OUTPUT_DSI
)) {
6044 if (IS_CHERRYVIEW(dev
))
6045 chv_disable_pll(dev_priv
, pipe
);
6046 else if (IS_VALLEYVIEW(dev
))
6047 vlv_disable_pll(dev_priv
, pipe
);
6049 i9xx_disable_pll(intel_crtc
);
6053 intel_set_cpu_fifo_underrun_reporting(dev_priv
, pipe
, false);
6055 intel_crtc
->active
= false;
6056 intel_update_watermarks(crtc
);
6058 mutex_lock(&dev
->struct_mutex
);
6059 intel_fbc_update(dev
);
6060 mutex_unlock(&dev
->struct_mutex
);
6063 static void i9xx_crtc_off(struct drm_crtc
*crtc
)
6067 /* Master function to enable/disable CRTC and corresponding power wells */
6068 void intel_crtc_control(struct drm_crtc
*crtc
, bool enable
)
6070 struct drm_device
*dev
= crtc
->dev
;
6071 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6072 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6073 enum intel_display_power_domain domain
;
6074 unsigned long domains
;
6077 if (!intel_crtc
->active
) {
6078 domains
= get_crtc_power_domains(crtc
);
6079 for_each_power_domain(domain
, domains
)
6080 intel_display_power_get(dev_priv
, domain
);
6081 intel_crtc
->enabled_power_domains
= domains
;
6083 dev_priv
->display
.crtc_enable(crtc
);
6084 intel_crtc_enable_planes(crtc
);
6087 if (intel_crtc
->active
) {
6088 intel_crtc_disable_planes(crtc
);
6089 dev_priv
->display
.crtc_disable(crtc
);
6091 domains
= intel_crtc
->enabled_power_domains
;
6092 for_each_power_domain(domain
, domains
)
6093 intel_display_power_put(dev_priv
, domain
);
6094 intel_crtc
->enabled_power_domains
= 0;
6100 * Sets the power management mode of the pipe and plane.
6102 void intel_crtc_update_dpms(struct drm_crtc
*crtc
)
6104 struct drm_device
*dev
= crtc
->dev
;
6105 struct intel_encoder
*intel_encoder
;
6106 bool enable
= false;
6108 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
)
6109 enable
|= intel_encoder
->connectors_active
;
6111 intel_crtc_control(crtc
, enable
);
6113 crtc
->state
->active
= enable
;
6116 static void intel_crtc_disable(struct drm_crtc
*crtc
)
6118 struct drm_device
*dev
= crtc
->dev
;
6119 struct drm_connector
*connector
;
6120 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6122 /* crtc should still be enabled when we disable it. */
6123 WARN_ON(!crtc
->state
->enable
);
6125 intel_crtc_disable_planes(crtc
);
6126 dev_priv
->display
.crtc_disable(crtc
);
6127 dev_priv
->display
.off(crtc
);
6129 drm_plane_helper_disable(crtc
->primary
);
6131 /* Update computed state. */
6132 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
6133 if (!connector
->encoder
|| !connector
->encoder
->crtc
)
6136 if (connector
->encoder
->crtc
!= crtc
)
6139 connector
->dpms
= DRM_MODE_DPMS_OFF
;
6140 to_intel_encoder(connector
->encoder
)->connectors_active
= false;
6144 void intel_encoder_destroy(struct drm_encoder
*encoder
)
6146 struct intel_encoder
*intel_encoder
= to_intel_encoder(encoder
);
6148 drm_encoder_cleanup(encoder
);
6149 kfree(intel_encoder
);
6152 /* Simple dpms helper for encoders with just one connector, no cloning and only
6153 * one kind of off state. It clamps all !ON modes to fully OFF and changes the
6154 * state of the entire output pipe. */
6155 static void intel_encoder_dpms(struct intel_encoder
*encoder
, int mode
)
6157 if (mode
== DRM_MODE_DPMS_ON
) {
6158 encoder
->connectors_active
= true;
6160 intel_crtc_update_dpms(encoder
->base
.crtc
);
6162 encoder
->connectors_active
= false;
6164 intel_crtc_update_dpms(encoder
->base
.crtc
);
6168 /* Cross check the actual hw state with our own modeset state tracking (and it's
6169 * internal consistency). */
6170 static void intel_connector_check_state(struct intel_connector
*connector
)
6172 if (connector
->get_hw_state(connector
)) {
6173 struct intel_encoder
*encoder
= connector
->encoder
;
6174 struct drm_crtc
*crtc
;
6175 bool encoder_enabled
;
6178 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
6179 connector
->base
.base
.id
,
6180 connector
->base
.name
);
6182 /* there is no real hw state for MST connectors */
6183 if (connector
->mst_port
)
6186 I915_STATE_WARN(connector
->base
.dpms
== DRM_MODE_DPMS_OFF
,
6187 "wrong connector dpms state\n");
6188 I915_STATE_WARN(connector
->base
.encoder
!= &encoder
->base
,
6189 "active connector not linked to encoder\n");
6192 I915_STATE_WARN(!encoder
->connectors_active
,
6193 "encoder->connectors_active not set\n");
6195 encoder_enabled
= encoder
->get_hw_state(encoder
, &pipe
);
6196 I915_STATE_WARN(!encoder_enabled
, "encoder not enabled\n");
6197 if (I915_STATE_WARN_ON(!encoder
->base
.crtc
))
6200 crtc
= encoder
->base
.crtc
;
6202 I915_STATE_WARN(!crtc
->state
->enable
,
6203 "crtc not enabled\n");
6204 I915_STATE_WARN(!to_intel_crtc(crtc
)->active
, "crtc not active\n");
6205 I915_STATE_WARN(pipe
!= to_intel_crtc(crtc
)->pipe
,
6206 "encoder active on the wrong pipe\n");
6211 int intel_connector_init(struct intel_connector
*connector
)
6213 struct drm_connector_state
*connector_state
;
6215 connector_state
= kzalloc(sizeof *connector_state
, GFP_KERNEL
);
6216 if (!connector_state
)
6219 connector
->base
.state
= connector_state
;
6223 struct intel_connector
*intel_connector_alloc(void)
6225 struct intel_connector
*connector
;
6227 connector
= kzalloc(sizeof *connector
, GFP_KERNEL
);
6231 if (intel_connector_init(connector
) < 0) {
6239 /* Even simpler default implementation, if there's really no special case to
6241 void intel_connector_dpms(struct drm_connector
*connector
, int mode
)
6243 /* All the simple cases only support two dpms states. */
6244 if (mode
!= DRM_MODE_DPMS_ON
)
6245 mode
= DRM_MODE_DPMS_OFF
;
6247 if (mode
== connector
->dpms
)
6250 connector
->dpms
= mode
;
6252 /* Only need to change hw state when actually enabled */
6253 if (connector
->encoder
)
6254 intel_encoder_dpms(to_intel_encoder(connector
->encoder
), mode
);
6256 intel_modeset_check_state(connector
->dev
);
6259 /* Simple connector->get_hw_state implementation for encoders that support only
6260 * one connector and no cloning and hence the encoder state determines the state
6261 * of the connector. */
6262 bool intel_connector_get_hw_state(struct intel_connector
*connector
)
6265 struct intel_encoder
*encoder
= connector
->encoder
;
6267 return encoder
->get_hw_state(encoder
, &pipe
);
6270 static int pipe_required_fdi_lanes(struct intel_crtc_state
*crtc_state
)
6272 if (crtc_state
->base
.enable
&& crtc_state
->has_pch_encoder
)
6273 return crtc_state
->fdi_lanes
;
6278 static int ironlake_check_fdi_lanes(struct drm_device
*dev
, enum pipe pipe
,
6279 struct intel_crtc_state
*pipe_config
)
6281 struct drm_atomic_state
*state
= pipe_config
->base
.state
;
6282 struct intel_crtc
*other_crtc
;
6283 struct intel_crtc_state
*other_crtc_state
;
6285 DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n",
6286 pipe_name(pipe
), pipe_config
->fdi_lanes
);
6287 if (pipe_config
->fdi_lanes
> 4) {
6288 DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n",
6289 pipe_name(pipe
), pipe_config
->fdi_lanes
);
6293 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
6294 if (pipe_config
->fdi_lanes
> 2) {
6295 DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n",
6296 pipe_config
->fdi_lanes
);
6303 if (INTEL_INFO(dev
)->num_pipes
== 2)
6306 /* Ivybridge 3 pipe is really complicated */
6311 if (pipe_config
->fdi_lanes
<= 2)
6314 other_crtc
= to_intel_crtc(intel_get_crtc_for_pipe(dev
, PIPE_C
));
6316 intel_atomic_get_crtc_state(state
, other_crtc
);
6317 if (IS_ERR(other_crtc_state
))
6318 return PTR_ERR(other_crtc_state
);
6320 if (pipe_required_fdi_lanes(other_crtc_state
) > 0) {
6321 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
6322 pipe_name(pipe
), pipe_config
->fdi_lanes
);
6327 if (pipe_config
->fdi_lanes
> 2) {
6328 DRM_DEBUG_KMS("only 2 lanes on pipe %c: required %i lanes\n",
6329 pipe_name(pipe
), pipe_config
->fdi_lanes
);
6333 other_crtc
= to_intel_crtc(intel_get_crtc_for_pipe(dev
, PIPE_B
));
6335 intel_atomic_get_crtc_state(state
, other_crtc
);
6336 if (IS_ERR(other_crtc_state
))
6337 return PTR_ERR(other_crtc_state
);
6339 if (pipe_required_fdi_lanes(other_crtc_state
) > 2) {
6340 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
6350 static int ironlake_fdi_compute_config(struct intel_crtc
*intel_crtc
,
6351 struct intel_crtc_state
*pipe_config
)
6353 struct drm_device
*dev
= intel_crtc
->base
.dev
;
6354 struct drm_display_mode
*adjusted_mode
= &pipe_config
->base
.adjusted_mode
;
6355 int lane
, link_bw
, fdi_dotclock
, ret
;
6356 bool needs_recompute
= false;
6359 /* FDI is a binary signal running at ~2.7GHz, encoding
6360 * each output octet as 10 bits. The actual frequency
6361 * is stored as a divider into a 100MHz clock, and the
6362 * mode pixel clock is stored in units of 1KHz.
6363 * Hence the bw of each lane in terms of the mode signal
6366 link_bw
= intel_fdi_link_freq(dev
) * MHz(100)/KHz(1)/10;
6368 fdi_dotclock
= adjusted_mode
->crtc_clock
;
6370 lane
= ironlake_get_lanes_required(fdi_dotclock
, link_bw
,
6371 pipe_config
->pipe_bpp
);
6373 pipe_config
->fdi_lanes
= lane
;
6375 intel_link_compute_m_n(pipe_config
->pipe_bpp
, lane
, fdi_dotclock
,
6376 link_bw
, &pipe_config
->fdi_m_n
);
6378 ret
= ironlake_check_fdi_lanes(intel_crtc
->base
.dev
,
6379 intel_crtc
->pipe
, pipe_config
);
6380 if (ret
== -EINVAL
&& pipe_config
->pipe_bpp
> 6*3) {
6381 pipe_config
->pipe_bpp
-= 2*3;
6382 DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n",
6383 pipe_config
->pipe_bpp
);
6384 needs_recompute
= true;
6385 pipe_config
->bw_constrained
= true;
6390 if (needs_recompute
)
6396 static void hsw_compute_ips_config(struct intel_crtc
*crtc
,
6397 struct intel_crtc_state
*pipe_config
)
6399 pipe_config
->ips_enabled
= i915
.enable_ips
&&
6400 hsw_crtc_supports_ips(crtc
) &&
6401 pipe_config
->pipe_bpp
<= 24;
6404 static int intel_crtc_compute_config(struct intel_crtc
*crtc
,
6405 struct intel_crtc_state
*pipe_config
)
6407 struct drm_device
*dev
= crtc
->base
.dev
;
6408 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6409 struct drm_display_mode
*adjusted_mode
= &pipe_config
->base
.adjusted_mode
;
6412 /* FIXME should check pixel clock limits on all platforms */
6413 if (INTEL_INFO(dev
)->gen
< 4) {
6415 dev_priv
->display
.get_display_clock_speed(dev
);
6418 * Enable pixel doubling when the dot clock
6419 * is > 90% of the (display) core speed.
6421 * GDG double wide on either pipe,
6422 * otherwise pipe A only.
6424 if ((crtc
->pipe
== PIPE_A
|| IS_I915G(dev
)) &&
6425 adjusted_mode
->crtc_clock
> clock_limit
* 9 / 10) {
6427 pipe_config
->double_wide
= true;
6430 if (adjusted_mode
->crtc_clock
> clock_limit
* 9 / 10)
6435 * Pipe horizontal size must be even in:
6437 * - LVDS dual channel mode
6438 * - Double wide pipe
6440 if ((intel_pipe_will_have_type(pipe_config
, INTEL_OUTPUT_LVDS
) &&
6441 intel_is_dual_link_lvds(dev
)) || pipe_config
->double_wide
)
6442 pipe_config
->pipe_src_w
&= ~1;
6444 /* Cantiga+ cannot handle modes with a hsync front porch of 0.
6445 * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw.
6447 if ((INTEL_INFO(dev
)->gen
> 4 || IS_G4X(dev
)) &&
6448 adjusted_mode
->hsync_start
== adjusted_mode
->hdisplay
)
6452 hsw_compute_ips_config(crtc
, pipe_config
);
6454 if (pipe_config
->has_pch_encoder
)
6455 return ironlake_fdi_compute_config(crtc
, pipe_config
);
6457 /* FIXME: remove below call once atomic mode set is place and all crtc
6458 * related checks called from atomic_crtc_check function */
6460 DRM_DEBUG_KMS("intel_crtc = %p drm_state (pipe_config->base.state) = %p\n",
6461 crtc
, pipe_config
->base
.state
);
6462 ret
= intel_atomic_setup_scalers(dev
, crtc
, pipe_config
);
6467 static int skylake_get_display_clock_speed(struct drm_device
*dev
)
6469 struct drm_i915_private
*dev_priv
= to_i915(dev
);
6470 uint32_t lcpll1
= I915_READ(LCPLL1_CTL
);
6471 uint32_t cdctl
= I915_READ(CDCLK_CTL
);
6474 if (!(lcpll1
& LCPLL_PLL_ENABLE
)) {
6475 WARN(1, "LCPLL1 not enabled\n");
6476 return 24000; /* 24MHz is the cd freq with NSSC ref */
6479 if ((cdctl
& CDCLK_FREQ_SEL_MASK
) == CDCLK_FREQ_540
)
6482 linkrate
= (I915_READ(DPLL_CTRL1
) &
6483 DPLL_CTRL1_LINK_RATE_MASK(SKL_DPLL0
)) >> 1;
6485 if (linkrate
== DPLL_CTRL1_LINK_RATE_2160
||
6486 linkrate
== DPLL_CTRL1_LINK_RATE_1080
) {
6488 switch (cdctl
& CDCLK_FREQ_SEL_MASK
) {
6489 case CDCLK_FREQ_450_432
:
6491 case CDCLK_FREQ_337_308
:
6493 case CDCLK_FREQ_675_617
:
6496 WARN(1, "Unknown cd freq selection\n");
6500 switch (cdctl
& CDCLK_FREQ_SEL_MASK
) {
6501 case CDCLK_FREQ_450_432
:
6503 case CDCLK_FREQ_337_308
:
6505 case CDCLK_FREQ_675_617
:
6508 WARN(1, "Unknown cd freq selection\n");
6512 /* error case, do as if DPLL0 isn't enabled */
6516 static int broadwell_get_display_clock_speed(struct drm_device
*dev
)
6518 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6519 uint32_t lcpll
= I915_READ(LCPLL_CTL
);
6520 uint32_t freq
= lcpll
& LCPLL_CLK_FREQ_MASK
;
6522 if (lcpll
& LCPLL_CD_SOURCE_FCLK
)
6524 else if (I915_READ(FUSE_STRAP
) & HSW_CDCLK_LIMIT
)
6526 else if (freq
== LCPLL_CLK_FREQ_450
)
6528 else if (freq
== LCPLL_CLK_FREQ_54O_BDW
)
6530 else if (freq
== LCPLL_CLK_FREQ_337_5_BDW
)
6536 static int haswell_get_display_clock_speed(struct drm_device
*dev
)
6538 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6539 uint32_t lcpll
= I915_READ(LCPLL_CTL
);
6540 uint32_t freq
= lcpll
& LCPLL_CLK_FREQ_MASK
;
6542 if (lcpll
& LCPLL_CD_SOURCE_FCLK
)
6544 else if (I915_READ(FUSE_STRAP
) & HSW_CDCLK_LIMIT
)
6546 else if (freq
== LCPLL_CLK_FREQ_450
)
6548 else if (IS_HSW_ULT(dev
))
6554 static int valleyview_get_display_clock_speed(struct drm_device
*dev
)
6556 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6560 if (dev_priv
->hpll_freq
== 0)
6561 dev_priv
->hpll_freq
= valleyview_get_vco(dev_priv
);
6563 mutex_lock(&dev_priv
->dpio_lock
);
6564 val
= vlv_cck_read(dev_priv
, CCK_DISPLAY_CLOCK_CONTROL
);
6565 mutex_unlock(&dev_priv
->dpio_lock
);
6567 divider
= val
& DISPLAY_FREQUENCY_VALUES
;
6569 WARN((val
& DISPLAY_FREQUENCY_STATUS
) !=
6570 (divider
<< DISPLAY_FREQUENCY_STATUS_SHIFT
),
6571 "cdclk change in progress\n");
6573 return DIV_ROUND_CLOSEST(dev_priv
->hpll_freq
<< 1, divider
+ 1);
6576 static int ilk_get_display_clock_speed(struct drm_device
*dev
)
6581 static int i945_get_display_clock_speed(struct drm_device
*dev
)
6586 static int i915_get_display_clock_speed(struct drm_device
*dev
)
6591 static int i9xx_misc_get_display_clock_speed(struct drm_device
*dev
)
6596 static int pnv_get_display_clock_speed(struct drm_device
*dev
)
6600 pci_read_config_word(dev
->pdev
, GCFGC
, &gcfgc
);
6602 switch (gcfgc
& GC_DISPLAY_CLOCK_MASK
) {
6603 case GC_DISPLAY_CLOCK_267_MHZ_PNV
:
6605 case GC_DISPLAY_CLOCK_333_MHZ_PNV
:
6607 case GC_DISPLAY_CLOCK_444_MHZ_PNV
:
6609 case GC_DISPLAY_CLOCK_200_MHZ_PNV
:
6612 DRM_ERROR("Unknown pnv display core clock 0x%04x\n", gcfgc
);
6613 case GC_DISPLAY_CLOCK_133_MHZ_PNV
:
6615 case GC_DISPLAY_CLOCK_167_MHZ_PNV
:
6620 static int i915gm_get_display_clock_speed(struct drm_device
*dev
)
6624 pci_read_config_word(dev
->pdev
, GCFGC
, &gcfgc
);
6626 if (gcfgc
& GC_LOW_FREQUENCY_ENABLE
)
6629 switch (gcfgc
& GC_DISPLAY_CLOCK_MASK
) {
6630 case GC_DISPLAY_CLOCK_333_MHZ
:
6633 case GC_DISPLAY_CLOCK_190_200_MHZ
:
6639 static int i865_get_display_clock_speed(struct drm_device
*dev
)
6644 static int i855_get_display_clock_speed(struct drm_device
*dev
)
6647 /* Assume that the hardware is in the high speed state. This
6648 * should be the default.
6650 switch (hpllcc
& GC_CLOCK_CONTROL_MASK
) {
6651 case GC_CLOCK_133_200
:
6652 case GC_CLOCK_100_200
:
6654 case GC_CLOCK_166_250
:
6656 case GC_CLOCK_100_133
:
6660 /* Shouldn't happen */
6664 static int i830_get_display_clock_speed(struct drm_device
*dev
)
6670 intel_reduce_m_n_ratio(uint32_t *num
, uint32_t *den
)
6672 while (*num
> DATA_LINK_M_N_MASK
||
6673 *den
> DATA_LINK_M_N_MASK
) {
6679 static void compute_m_n(unsigned int m
, unsigned int n
,
6680 uint32_t *ret_m
, uint32_t *ret_n
)
6682 *ret_n
= min_t(unsigned int, roundup_pow_of_two(n
), DATA_LINK_N_MAX
);
6683 *ret_m
= div_u64((uint64_t) m
* *ret_n
, n
);
6684 intel_reduce_m_n_ratio(ret_m
, ret_n
);
6688 intel_link_compute_m_n(int bits_per_pixel
, int nlanes
,
6689 int pixel_clock
, int link_clock
,
6690 struct intel_link_m_n
*m_n
)
6694 compute_m_n(bits_per_pixel
* pixel_clock
,
6695 link_clock
* nlanes
* 8,
6696 &m_n
->gmch_m
, &m_n
->gmch_n
);
6698 compute_m_n(pixel_clock
, link_clock
,
6699 &m_n
->link_m
, &m_n
->link_n
);
6702 static inline bool intel_panel_use_ssc(struct drm_i915_private
*dev_priv
)
6704 if (i915
.panel_use_ssc
>= 0)
6705 return i915
.panel_use_ssc
!= 0;
6706 return dev_priv
->vbt
.lvds_use_ssc
6707 && !(dev_priv
->quirks
& QUIRK_LVDS_SSC_DISABLE
);
6710 static int i9xx_get_refclk(const struct intel_crtc_state
*crtc_state
,
6713 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
6714 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6717 WARN_ON(!crtc_state
->base
.state
);
6719 if (IS_VALLEYVIEW(dev
) || IS_BROXTON(dev
)) {
6721 } else if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
6722 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2) {
6723 refclk
= dev_priv
->vbt
.lvds_ssc_freq
;
6724 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk
);
6725 } else if (!IS_GEN2(dev
)) {
6734 static uint32_t pnv_dpll_compute_fp(struct dpll
*dpll
)
6736 return (1 << dpll
->n
) << 16 | dpll
->m2
;
6739 static uint32_t i9xx_dpll_compute_fp(struct dpll
*dpll
)
6741 return dpll
->n
<< 16 | dpll
->m1
<< 8 | dpll
->m2
;
6744 static void i9xx_update_pll_dividers(struct intel_crtc
*crtc
,
6745 struct intel_crtc_state
*crtc_state
,
6746 intel_clock_t
*reduced_clock
)
6748 struct drm_device
*dev
= crtc
->base
.dev
;
6751 if (IS_PINEVIEW(dev
)) {
6752 fp
= pnv_dpll_compute_fp(&crtc_state
->dpll
);
6754 fp2
= pnv_dpll_compute_fp(reduced_clock
);
6756 fp
= i9xx_dpll_compute_fp(&crtc_state
->dpll
);
6758 fp2
= i9xx_dpll_compute_fp(reduced_clock
);
6761 crtc_state
->dpll_hw_state
.fp0
= fp
;
6763 crtc
->lowfreq_avail
= false;
6764 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
6766 crtc_state
->dpll_hw_state
.fp1
= fp2
;
6767 crtc
->lowfreq_avail
= true;
6769 crtc_state
->dpll_hw_state
.fp1
= fp
;
6773 static void vlv_pllb_recal_opamp(struct drm_i915_private
*dev_priv
, enum pipe
6779 * PLLB opamp always calibrates to max value of 0x3f, force enable it
6780 * and set it to a reasonable value instead.
6782 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW9(1));
6783 reg_val
&= 0xffffff00;
6784 reg_val
|= 0x00000030;
6785 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9(1), reg_val
);
6787 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_REF_DW13
);
6788 reg_val
&= 0x8cffffff;
6789 reg_val
= 0x8c000000;
6790 vlv_dpio_write(dev_priv
, pipe
, VLV_REF_DW13
, reg_val
);
6792 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW9(1));
6793 reg_val
&= 0xffffff00;
6794 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9(1), reg_val
);
6796 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_REF_DW13
);
6797 reg_val
&= 0x00ffffff;
6798 reg_val
|= 0xb0000000;
6799 vlv_dpio_write(dev_priv
, pipe
, VLV_REF_DW13
, reg_val
);
6802 static void intel_pch_transcoder_set_m_n(struct intel_crtc
*crtc
,
6803 struct intel_link_m_n
*m_n
)
6805 struct drm_device
*dev
= crtc
->base
.dev
;
6806 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6807 int pipe
= crtc
->pipe
;
6809 I915_WRITE(PCH_TRANS_DATA_M1(pipe
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
6810 I915_WRITE(PCH_TRANS_DATA_N1(pipe
), m_n
->gmch_n
);
6811 I915_WRITE(PCH_TRANS_LINK_M1(pipe
), m_n
->link_m
);
6812 I915_WRITE(PCH_TRANS_LINK_N1(pipe
), m_n
->link_n
);
6815 static void intel_cpu_transcoder_set_m_n(struct intel_crtc
*crtc
,
6816 struct intel_link_m_n
*m_n
,
6817 struct intel_link_m_n
*m2_n2
)
6819 struct drm_device
*dev
= crtc
->base
.dev
;
6820 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6821 int pipe
= crtc
->pipe
;
6822 enum transcoder transcoder
= crtc
->config
->cpu_transcoder
;
6824 if (INTEL_INFO(dev
)->gen
>= 5) {
6825 I915_WRITE(PIPE_DATA_M1(transcoder
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
6826 I915_WRITE(PIPE_DATA_N1(transcoder
), m_n
->gmch_n
);
6827 I915_WRITE(PIPE_LINK_M1(transcoder
), m_n
->link_m
);
6828 I915_WRITE(PIPE_LINK_N1(transcoder
), m_n
->link_n
);
6829 /* M2_N2 registers to be set only for gen < 8 (M2_N2 available
6830 * for gen < 8) and if DRRS is supported (to make sure the
6831 * registers are not unnecessarily accessed).
6833 if (m2_n2
&& (IS_CHERRYVIEW(dev
) || INTEL_INFO(dev
)->gen
< 8) &&
6834 crtc
->config
->has_drrs
) {
6835 I915_WRITE(PIPE_DATA_M2(transcoder
),
6836 TU_SIZE(m2_n2
->tu
) | m2_n2
->gmch_m
);
6837 I915_WRITE(PIPE_DATA_N2(transcoder
), m2_n2
->gmch_n
);
6838 I915_WRITE(PIPE_LINK_M2(transcoder
), m2_n2
->link_m
);
6839 I915_WRITE(PIPE_LINK_N2(transcoder
), m2_n2
->link_n
);
6842 I915_WRITE(PIPE_DATA_M_G4X(pipe
), TU_SIZE(m_n
->tu
) | m_n
->gmch_m
);
6843 I915_WRITE(PIPE_DATA_N_G4X(pipe
), m_n
->gmch_n
);
6844 I915_WRITE(PIPE_LINK_M_G4X(pipe
), m_n
->link_m
);
6845 I915_WRITE(PIPE_LINK_N_G4X(pipe
), m_n
->link_n
);
6849 void intel_dp_set_m_n(struct intel_crtc
*crtc
, enum link_m_n_set m_n
)
6851 struct intel_link_m_n
*dp_m_n
, *dp_m2_n2
= NULL
;
6854 dp_m_n
= &crtc
->config
->dp_m_n
;
6855 dp_m2_n2
= &crtc
->config
->dp_m2_n2
;
6856 } else if (m_n
== M2_N2
) {
6859 * M2_N2 registers are not supported. Hence m2_n2 divider value
6860 * needs to be programmed into M1_N1.
6862 dp_m_n
= &crtc
->config
->dp_m2_n2
;
6864 DRM_ERROR("Unsupported divider value\n");
6868 if (crtc
->config
->has_pch_encoder
)
6869 intel_pch_transcoder_set_m_n(crtc
, &crtc
->config
->dp_m_n
);
6871 intel_cpu_transcoder_set_m_n(crtc
, dp_m_n
, dp_m2_n2
);
6874 static void vlv_update_pll(struct intel_crtc
*crtc
,
6875 struct intel_crtc_state
*pipe_config
)
6880 * Enable DPIO clock input. We should never disable the reference
6881 * clock for pipe B, since VGA hotplug / manual detection depends
6884 dpll
= DPLL_EXT_BUFFER_ENABLE_VLV
| DPLL_REFA_CLK_ENABLE_VLV
|
6885 DPLL_VGA_MODE_DIS
| DPLL_INTEGRATED_CLOCK_VLV
;
6886 /* We should never disable this, set it here for state tracking */
6887 if (crtc
->pipe
== PIPE_B
)
6888 dpll
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
6889 dpll
|= DPLL_VCO_ENABLE
;
6890 pipe_config
->dpll_hw_state
.dpll
= dpll
;
6892 dpll_md
= (pipe_config
->pixel_multiplier
- 1)
6893 << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
6894 pipe_config
->dpll_hw_state
.dpll_md
= dpll_md
;
6897 static void vlv_prepare_pll(struct intel_crtc
*crtc
,
6898 const struct intel_crtc_state
*pipe_config
)
6900 struct drm_device
*dev
= crtc
->base
.dev
;
6901 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6902 int pipe
= crtc
->pipe
;
6904 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
;
6905 u32 coreclk
, reg_val
;
6907 mutex_lock(&dev_priv
->dpio_lock
);
6909 bestn
= pipe_config
->dpll
.n
;
6910 bestm1
= pipe_config
->dpll
.m1
;
6911 bestm2
= pipe_config
->dpll
.m2
;
6912 bestp1
= pipe_config
->dpll
.p1
;
6913 bestp2
= pipe_config
->dpll
.p2
;
6915 /* See eDP HDMI DPIO driver vbios notes doc */
6917 /* PLL B needs special handling */
6919 vlv_pllb_recal_opamp(dev_priv
, pipe
);
6921 /* Set up Tx target for periodic Rcomp update */
6922 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW9_BCAST
, 0x0100000f);
6924 /* Disable target IRef on PLL */
6925 reg_val
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW8(pipe
));
6926 reg_val
&= 0x00ffffff;
6927 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW8(pipe
), reg_val
);
6929 /* Disable fast lock */
6930 vlv_dpio_write(dev_priv
, pipe
, VLV_CMN_DW0
, 0x610);
6932 /* Set idtafcrecal before PLL is enabled */
6933 mdiv
= ((bestm1
<< DPIO_M1DIV_SHIFT
) | (bestm2
& DPIO_M2DIV_MASK
));
6934 mdiv
|= ((bestp1
<< DPIO_P1_SHIFT
) | (bestp2
<< DPIO_P2_SHIFT
));
6935 mdiv
|= ((bestn
<< DPIO_N_SHIFT
));
6936 mdiv
|= (1 << DPIO_K_SHIFT
);
6939 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
6940 * but we don't support that).
6941 * Note: don't use the DAC post divider as it seems unstable.
6943 mdiv
|= (DPIO_POST_DIV_HDMIDP
<< DPIO_POST_DIV_SHIFT
);
6944 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW3(pipe
), mdiv
);
6946 mdiv
|= DPIO_ENABLE_CALIBRATION
;
6947 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW3(pipe
), mdiv
);
6949 /* Set HBR and RBR LPF coefficients */
6950 if (pipe_config
->port_clock
== 162000 ||
6951 intel_pipe_has_type(crtc
, INTEL_OUTPUT_ANALOG
) ||
6952 intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
))
6953 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW10(pipe
),
6956 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW10(pipe
),
6959 if (pipe_config
->has_dp_encoder
) {
6960 /* Use SSC source */
6962 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
6965 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
6967 } else { /* HDMI or VGA */
6968 /* Use bend source */
6970 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
6973 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW5(pipe
),
6977 coreclk
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW7(pipe
));
6978 coreclk
= (coreclk
& 0x0000ff00) | 0x01c00000;
6979 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
) ||
6980 intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
))
6981 coreclk
|= 0x01000000;
6982 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW7(pipe
), coreclk
);
6984 vlv_dpio_write(dev_priv
, pipe
, VLV_PLL_DW11(pipe
), 0x87871000);
6985 mutex_unlock(&dev_priv
->dpio_lock
);
6988 static void chv_update_pll(struct intel_crtc
*crtc
,
6989 struct intel_crtc_state
*pipe_config
)
6991 pipe_config
->dpll_hw_state
.dpll
= DPLL_SSC_REF_CLOCK_CHV
|
6992 DPLL_REFA_CLK_ENABLE_VLV
| DPLL_VGA_MODE_DIS
|
6994 if (crtc
->pipe
!= PIPE_A
)
6995 pipe_config
->dpll_hw_state
.dpll
|= DPLL_INTEGRATED_CRI_CLK_VLV
;
6997 pipe_config
->dpll_hw_state
.dpll_md
=
6998 (pipe_config
->pixel_multiplier
- 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
7001 static void chv_prepare_pll(struct intel_crtc
*crtc
,
7002 const struct intel_crtc_state
*pipe_config
)
7004 struct drm_device
*dev
= crtc
->base
.dev
;
7005 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7006 int pipe
= crtc
->pipe
;
7007 int dpll_reg
= DPLL(crtc
->pipe
);
7008 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
7009 u32 loopfilter
, tribuf_calcntr
;
7010 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
, bestm2_frac
;
7014 bestn
= pipe_config
->dpll
.n
;
7015 bestm2_frac
= pipe_config
->dpll
.m2
& 0x3fffff;
7016 bestm1
= pipe_config
->dpll
.m1
;
7017 bestm2
= pipe_config
->dpll
.m2
>> 22;
7018 bestp1
= pipe_config
->dpll
.p1
;
7019 bestp2
= pipe_config
->dpll
.p2
;
7020 vco
= pipe_config
->dpll
.vco
;
7025 * Enable Refclk and SSC
7027 I915_WRITE(dpll_reg
,
7028 pipe_config
->dpll_hw_state
.dpll
& ~DPLL_VCO_ENABLE
);
7030 mutex_lock(&dev_priv
->dpio_lock
);
7032 /* p1 and p2 divider */
7033 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW13(port
),
7034 5 << DPIO_CHV_S1_DIV_SHIFT
|
7035 bestp1
<< DPIO_CHV_P1_DIV_SHIFT
|
7036 bestp2
<< DPIO_CHV_P2_DIV_SHIFT
|
7037 1 << DPIO_CHV_K_DIV_SHIFT
);
7039 /* Feedback post-divider - m2 */
7040 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW0(port
), bestm2
);
7042 /* Feedback refclk divider - n and m1 */
7043 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW1(port
),
7044 DPIO_CHV_M1_DIV_BY_2
|
7045 1 << DPIO_CHV_N_DIV_SHIFT
);
7047 /* M2 fraction division */
7049 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW2(port
), bestm2_frac
);
7051 /* M2 fraction division enable */
7052 dpio_val
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW3(port
));
7053 dpio_val
&= ~(DPIO_CHV_FEEDFWD_GAIN_MASK
| DPIO_CHV_FRAC_DIV_EN
);
7054 dpio_val
|= (2 << DPIO_CHV_FEEDFWD_GAIN_SHIFT
);
7056 dpio_val
|= DPIO_CHV_FRAC_DIV_EN
;
7057 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW3(port
), dpio_val
);
7059 /* Program digital lock detect threshold */
7060 dpio_val
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW9(port
));
7061 dpio_val
&= ~(DPIO_CHV_INT_LOCK_THRESHOLD_MASK
|
7062 DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE
);
7063 dpio_val
|= (0x5 << DPIO_CHV_INT_LOCK_THRESHOLD_SHIFT
);
7065 dpio_val
|= DPIO_CHV_INT_LOCK_THRESHOLD_SEL_COARSE
;
7066 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW9(port
), dpio_val
);
7069 if (vco
== 5400000) {
7070 loopfilter
|= (0x3 << DPIO_CHV_PROP_COEFF_SHIFT
);
7071 loopfilter
|= (0x8 << DPIO_CHV_INT_COEFF_SHIFT
);
7072 loopfilter
|= (0x1 << DPIO_CHV_GAIN_CTRL_SHIFT
);
7073 tribuf_calcntr
= 0x9;
7074 } else if (vco
<= 6200000) {
7075 loopfilter
|= (0x5 << DPIO_CHV_PROP_COEFF_SHIFT
);
7076 loopfilter
|= (0xB << DPIO_CHV_INT_COEFF_SHIFT
);
7077 loopfilter
|= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT
);
7078 tribuf_calcntr
= 0x9;
7079 } else if (vco
<= 6480000) {
7080 loopfilter
|= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT
);
7081 loopfilter
|= (0x9 << DPIO_CHV_INT_COEFF_SHIFT
);
7082 loopfilter
|= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT
);
7083 tribuf_calcntr
= 0x8;
7085 /* Not supported. Apply the same limits as in the max case */
7086 loopfilter
|= (0x4 << DPIO_CHV_PROP_COEFF_SHIFT
);
7087 loopfilter
|= (0x9 << DPIO_CHV_INT_COEFF_SHIFT
);
7088 loopfilter
|= (0x3 << DPIO_CHV_GAIN_CTRL_SHIFT
);
7091 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW6(port
), loopfilter
);
7093 dpio_val
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW8(port
));
7094 dpio_val
&= ~DPIO_CHV_TDC_TARGET_CNT_MASK
;
7095 dpio_val
|= (tribuf_calcntr
<< DPIO_CHV_TDC_TARGET_CNT_SHIFT
);
7096 vlv_dpio_write(dev_priv
, pipe
, CHV_PLL_DW8(port
), dpio_val
);
7099 vlv_dpio_write(dev_priv
, pipe
, CHV_CMN_DW14(port
),
7100 vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW14(port
)) |
7103 mutex_unlock(&dev_priv
->dpio_lock
);
7107 * vlv_force_pll_on - forcibly enable just the PLL
7108 * @dev_priv: i915 private structure
7109 * @pipe: pipe PLL to enable
7110 * @dpll: PLL configuration
7112 * Enable the PLL for @pipe using the supplied @dpll config. To be used
7113 * in cases where we need the PLL enabled even when @pipe is not going to
7116 void vlv_force_pll_on(struct drm_device
*dev
, enum pipe pipe
,
7117 const struct dpll
*dpll
)
7119 struct intel_crtc
*crtc
=
7120 to_intel_crtc(intel_get_crtc_for_pipe(dev
, pipe
));
7121 struct intel_crtc_state pipe_config
= {
7122 .base
.crtc
= &crtc
->base
,
7123 .pixel_multiplier
= 1,
7127 if (IS_CHERRYVIEW(dev
)) {
7128 chv_update_pll(crtc
, &pipe_config
);
7129 chv_prepare_pll(crtc
, &pipe_config
);
7130 chv_enable_pll(crtc
, &pipe_config
);
7132 vlv_update_pll(crtc
, &pipe_config
);
7133 vlv_prepare_pll(crtc
, &pipe_config
);
7134 vlv_enable_pll(crtc
, &pipe_config
);
7139 * vlv_force_pll_off - forcibly disable just the PLL
7140 * @dev_priv: i915 private structure
7141 * @pipe: pipe PLL to disable
7143 * Disable the PLL for @pipe. To be used in cases where we need
7144 * the PLL enabled even when @pipe is not going to be enabled.
7146 void vlv_force_pll_off(struct drm_device
*dev
, enum pipe pipe
)
7148 if (IS_CHERRYVIEW(dev
))
7149 chv_disable_pll(to_i915(dev
), pipe
);
7151 vlv_disable_pll(to_i915(dev
), pipe
);
7154 static void i9xx_update_pll(struct intel_crtc
*crtc
,
7155 struct intel_crtc_state
*crtc_state
,
7156 intel_clock_t
*reduced_clock
,
7159 struct drm_device
*dev
= crtc
->base
.dev
;
7160 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7163 struct dpll
*clock
= &crtc_state
->dpll
;
7165 i9xx_update_pll_dividers(crtc
, crtc_state
, reduced_clock
);
7167 is_sdvo
= intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_SDVO
) ||
7168 intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_HDMI
);
7170 dpll
= DPLL_VGA_MODE_DIS
;
7172 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
))
7173 dpll
|= DPLLB_MODE_LVDS
;
7175 dpll
|= DPLLB_MODE_DAC_SERIAL
;
7177 if (IS_I945G(dev
) || IS_I945GM(dev
) || IS_G33(dev
)) {
7178 dpll
|= (crtc_state
->pixel_multiplier
- 1)
7179 << SDVO_MULTIPLIER_SHIFT_HIRES
;
7183 dpll
|= DPLL_SDVO_HIGH_SPEED
;
7185 if (crtc_state
->has_dp_encoder
)
7186 dpll
|= DPLL_SDVO_HIGH_SPEED
;
7188 /* compute bitmask from p1 value */
7189 if (IS_PINEVIEW(dev
))
7190 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
;
7192 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
7193 if (IS_G4X(dev
) && reduced_clock
)
7194 dpll
|= (1 << (reduced_clock
->p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
7196 switch (clock
->p2
) {
7198 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
7201 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
7204 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
7207 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
7210 if (INTEL_INFO(dev
)->gen
>= 4)
7211 dpll
|= (6 << PLL_LOAD_PULSE_PHASE_SHIFT
);
7213 if (crtc_state
->sdvo_tv_clock
)
7214 dpll
|= PLL_REF_INPUT_TVCLKINBC
;
7215 else if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
7216 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
7217 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
7219 dpll
|= PLL_REF_INPUT_DREFCLK
;
7221 dpll
|= DPLL_VCO_ENABLE
;
7222 crtc_state
->dpll_hw_state
.dpll
= dpll
;
7224 if (INTEL_INFO(dev
)->gen
>= 4) {
7225 u32 dpll_md
= (crtc_state
->pixel_multiplier
- 1)
7226 << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
7227 crtc_state
->dpll_hw_state
.dpll_md
= dpll_md
;
7231 static void i8xx_update_pll(struct intel_crtc
*crtc
,
7232 struct intel_crtc_state
*crtc_state
,
7233 intel_clock_t
*reduced_clock
,
7236 struct drm_device
*dev
= crtc
->base
.dev
;
7237 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7239 struct dpll
*clock
= &crtc_state
->dpll
;
7241 i9xx_update_pll_dividers(crtc
, crtc_state
, reduced_clock
);
7243 dpll
= DPLL_VGA_MODE_DIS
;
7245 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
)) {
7246 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
7249 dpll
|= PLL_P1_DIVIDE_BY_TWO
;
7251 dpll
|= (clock
->p1
- 2) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
7253 dpll
|= PLL_P2_DIVIDE_BY_4
;
7256 if (!IS_I830(dev
) && intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_DVO
))
7257 dpll
|= DPLL_DVO_2X_MODE
;
7259 if (intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
) &&
7260 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
7261 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
7263 dpll
|= PLL_REF_INPUT_DREFCLK
;
7265 dpll
|= DPLL_VCO_ENABLE
;
7266 crtc_state
->dpll_hw_state
.dpll
= dpll
;
7269 static void intel_set_pipe_timings(struct intel_crtc
*intel_crtc
)
7271 struct drm_device
*dev
= intel_crtc
->base
.dev
;
7272 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7273 enum pipe pipe
= intel_crtc
->pipe
;
7274 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
7275 struct drm_display_mode
*adjusted_mode
=
7276 &intel_crtc
->config
->base
.adjusted_mode
;
7277 uint32_t crtc_vtotal
, crtc_vblank_end
;
7280 /* We need to be careful not to changed the adjusted mode, for otherwise
7281 * the hw state checker will get angry at the mismatch. */
7282 crtc_vtotal
= adjusted_mode
->crtc_vtotal
;
7283 crtc_vblank_end
= adjusted_mode
->crtc_vblank_end
;
7285 if (adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
) {
7286 /* the chip adds 2 halflines automatically */
7288 crtc_vblank_end
-= 1;
7290 if (intel_pipe_has_type(intel_crtc
, INTEL_OUTPUT_SDVO
))
7291 vsyncshift
= (adjusted_mode
->crtc_htotal
- 1) / 2;
7293 vsyncshift
= adjusted_mode
->crtc_hsync_start
-
7294 adjusted_mode
->crtc_htotal
/ 2;
7296 vsyncshift
+= adjusted_mode
->crtc_htotal
;
7299 if (INTEL_INFO(dev
)->gen
> 3)
7300 I915_WRITE(VSYNCSHIFT(cpu_transcoder
), vsyncshift
);
7302 I915_WRITE(HTOTAL(cpu_transcoder
),
7303 (adjusted_mode
->crtc_hdisplay
- 1) |
7304 ((adjusted_mode
->crtc_htotal
- 1) << 16));
7305 I915_WRITE(HBLANK(cpu_transcoder
),
7306 (adjusted_mode
->crtc_hblank_start
- 1) |
7307 ((adjusted_mode
->crtc_hblank_end
- 1) << 16));
7308 I915_WRITE(HSYNC(cpu_transcoder
),
7309 (adjusted_mode
->crtc_hsync_start
- 1) |
7310 ((adjusted_mode
->crtc_hsync_end
- 1) << 16));
7312 I915_WRITE(VTOTAL(cpu_transcoder
),
7313 (adjusted_mode
->crtc_vdisplay
- 1) |
7314 ((crtc_vtotal
- 1) << 16));
7315 I915_WRITE(VBLANK(cpu_transcoder
),
7316 (adjusted_mode
->crtc_vblank_start
- 1) |
7317 ((crtc_vblank_end
- 1) << 16));
7318 I915_WRITE(VSYNC(cpu_transcoder
),
7319 (adjusted_mode
->crtc_vsync_start
- 1) |
7320 ((adjusted_mode
->crtc_vsync_end
- 1) << 16));
7322 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
7323 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
7324 * documented on the DDI_FUNC_CTL register description, EDP Input Select
7326 if (IS_HASWELL(dev
) && cpu_transcoder
== TRANSCODER_EDP
&&
7327 (pipe
== PIPE_B
|| pipe
== PIPE_C
))
7328 I915_WRITE(VTOTAL(pipe
), I915_READ(VTOTAL(cpu_transcoder
)));
7330 /* pipesrc controls the size that is scaled from, which should
7331 * always be the user's requested size.
7333 I915_WRITE(PIPESRC(pipe
),
7334 ((intel_crtc
->config
->pipe_src_w
- 1) << 16) |
7335 (intel_crtc
->config
->pipe_src_h
- 1));
7338 static void intel_get_pipe_timings(struct intel_crtc
*crtc
,
7339 struct intel_crtc_state
*pipe_config
)
7341 struct drm_device
*dev
= crtc
->base
.dev
;
7342 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7343 enum transcoder cpu_transcoder
= pipe_config
->cpu_transcoder
;
7346 tmp
= I915_READ(HTOTAL(cpu_transcoder
));
7347 pipe_config
->base
.adjusted_mode
.crtc_hdisplay
= (tmp
& 0xffff) + 1;
7348 pipe_config
->base
.adjusted_mode
.crtc_htotal
= ((tmp
>> 16) & 0xffff) + 1;
7349 tmp
= I915_READ(HBLANK(cpu_transcoder
));
7350 pipe_config
->base
.adjusted_mode
.crtc_hblank_start
= (tmp
& 0xffff) + 1;
7351 pipe_config
->base
.adjusted_mode
.crtc_hblank_end
= ((tmp
>> 16) & 0xffff) + 1;
7352 tmp
= I915_READ(HSYNC(cpu_transcoder
));
7353 pipe_config
->base
.adjusted_mode
.crtc_hsync_start
= (tmp
& 0xffff) + 1;
7354 pipe_config
->base
.adjusted_mode
.crtc_hsync_end
= ((tmp
>> 16) & 0xffff) + 1;
7356 tmp
= I915_READ(VTOTAL(cpu_transcoder
));
7357 pipe_config
->base
.adjusted_mode
.crtc_vdisplay
= (tmp
& 0xffff) + 1;
7358 pipe_config
->base
.adjusted_mode
.crtc_vtotal
= ((tmp
>> 16) & 0xffff) + 1;
7359 tmp
= I915_READ(VBLANK(cpu_transcoder
));
7360 pipe_config
->base
.adjusted_mode
.crtc_vblank_start
= (tmp
& 0xffff) + 1;
7361 pipe_config
->base
.adjusted_mode
.crtc_vblank_end
= ((tmp
>> 16) & 0xffff) + 1;
7362 tmp
= I915_READ(VSYNC(cpu_transcoder
));
7363 pipe_config
->base
.adjusted_mode
.crtc_vsync_start
= (tmp
& 0xffff) + 1;
7364 pipe_config
->base
.adjusted_mode
.crtc_vsync_end
= ((tmp
>> 16) & 0xffff) + 1;
7366 if (I915_READ(PIPECONF(cpu_transcoder
)) & PIPECONF_INTERLACE_MASK
) {
7367 pipe_config
->base
.adjusted_mode
.flags
|= DRM_MODE_FLAG_INTERLACE
;
7368 pipe_config
->base
.adjusted_mode
.crtc_vtotal
+= 1;
7369 pipe_config
->base
.adjusted_mode
.crtc_vblank_end
+= 1;
7372 tmp
= I915_READ(PIPESRC(crtc
->pipe
));
7373 pipe_config
->pipe_src_h
= (tmp
& 0xffff) + 1;
7374 pipe_config
->pipe_src_w
= ((tmp
>> 16) & 0xffff) + 1;
7376 pipe_config
->base
.mode
.vdisplay
= pipe_config
->pipe_src_h
;
7377 pipe_config
->base
.mode
.hdisplay
= pipe_config
->pipe_src_w
;
7380 void intel_mode_from_pipe_config(struct drm_display_mode
*mode
,
7381 struct intel_crtc_state
*pipe_config
)
7383 mode
->hdisplay
= pipe_config
->base
.adjusted_mode
.crtc_hdisplay
;
7384 mode
->htotal
= pipe_config
->base
.adjusted_mode
.crtc_htotal
;
7385 mode
->hsync_start
= pipe_config
->base
.adjusted_mode
.crtc_hsync_start
;
7386 mode
->hsync_end
= pipe_config
->base
.adjusted_mode
.crtc_hsync_end
;
7388 mode
->vdisplay
= pipe_config
->base
.adjusted_mode
.crtc_vdisplay
;
7389 mode
->vtotal
= pipe_config
->base
.adjusted_mode
.crtc_vtotal
;
7390 mode
->vsync_start
= pipe_config
->base
.adjusted_mode
.crtc_vsync_start
;
7391 mode
->vsync_end
= pipe_config
->base
.adjusted_mode
.crtc_vsync_end
;
7393 mode
->flags
= pipe_config
->base
.adjusted_mode
.flags
;
7395 mode
->clock
= pipe_config
->base
.adjusted_mode
.crtc_clock
;
7396 mode
->flags
|= pipe_config
->base
.adjusted_mode
.flags
;
7399 static void i9xx_set_pipeconf(struct intel_crtc
*intel_crtc
)
7401 struct drm_device
*dev
= intel_crtc
->base
.dev
;
7402 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7407 if ((intel_crtc
->pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
7408 (intel_crtc
->pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
7409 pipeconf
|= I915_READ(PIPECONF(intel_crtc
->pipe
)) & PIPECONF_ENABLE
;
7411 if (intel_crtc
->config
->double_wide
)
7412 pipeconf
|= PIPECONF_DOUBLE_WIDE
;
7414 /* only g4x and later have fancy bpc/dither controls */
7415 if (IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) {
7416 /* Bspec claims that we can't use dithering for 30bpp pipes. */
7417 if (intel_crtc
->config
->dither
&& intel_crtc
->config
->pipe_bpp
!= 30)
7418 pipeconf
|= PIPECONF_DITHER_EN
|
7419 PIPECONF_DITHER_TYPE_SP
;
7421 switch (intel_crtc
->config
->pipe_bpp
) {
7423 pipeconf
|= PIPECONF_6BPC
;
7426 pipeconf
|= PIPECONF_8BPC
;
7429 pipeconf
|= PIPECONF_10BPC
;
7432 /* Case prevented by intel_choose_pipe_bpp_dither. */
7437 if (HAS_PIPE_CXSR(dev
)) {
7438 if (intel_crtc
->lowfreq_avail
) {
7439 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
7440 pipeconf
|= PIPECONF_CXSR_DOWNCLOCK
;
7442 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
7446 if (intel_crtc
->config
->base
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
) {
7447 if (INTEL_INFO(dev
)->gen
< 4 ||
7448 intel_pipe_has_type(intel_crtc
, INTEL_OUTPUT_SDVO
))
7449 pipeconf
|= PIPECONF_INTERLACE_W_FIELD_INDICATION
;
7451 pipeconf
|= PIPECONF_INTERLACE_W_SYNC_SHIFT
;
7453 pipeconf
|= PIPECONF_PROGRESSIVE
;
7455 if (IS_VALLEYVIEW(dev
) && intel_crtc
->config
->limited_color_range
)
7456 pipeconf
|= PIPECONF_COLOR_RANGE_SELECT
;
7458 I915_WRITE(PIPECONF(intel_crtc
->pipe
), pipeconf
);
7459 POSTING_READ(PIPECONF(intel_crtc
->pipe
));
7462 static int i9xx_crtc_compute_clock(struct intel_crtc
*crtc
,
7463 struct intel_crtc_state
*crtc_state
)
7465 struct drm_device
*dev
= crtc
->base
.dev
;
7466 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7467 int refclk
, num_connectors
= 0;
7468 intel_clock_t clock
, reduced_clock
;
7469 bool ok
, has_reduced_clock
= false;
7470 bool is_lvds
= false, is_dsi
= false;
7471 struct intel_encoder
*encoder
;
7472 const intel_limit_t
*limit
;
7473 struct drm_atomic_state
*state
= crtc_state
->base
.state
;
7474 struct drm_connector
*connector
;
7475 struct drm_connector_state
*connector_state
;
7478 for_each_connector_in_state(state
, connector
, connector_state
, i
) {
7479 if (connector_state
->crtc
!= &crtc
->base
)
7482 encoder
= to_intel_encoder(connector_state
->best_encoder
);
7484 switch (encoder
->type
) {
7485 case INTEL_OUTPUT_LVDS
:
7488 case INTEL_OUTPUT_DSI
:
7501 if (!crtc_state
->clock_set
) {
7502 refclk
= i9xx_get_refclk(crtc_state
, num_connectors
);
7505 * Returns a set of divisors for the desired target clock with
7506 * the given refclk, or FALSE. The returned values represent
7507 * the clock equation: reflck * (5 * (m1 + 2) + (m2 + 2)) / (n +
7510 limit
= intel_limit(crtc_state
, refclk
);
7511 ok
= dev_priv
->display
.find_dpll(limit
, crtc_state
,
7512 crtc_state
->port_clock
,
7513 refclk
, NULL
, &clock
);
7515 DRM_ERROR("Couldn't find PLL settings for mode!\n");
7519 if (is_lvds
&& dev_priv
->lvds_downclock_avail
) {
7521 * Ensure we match the reduced clock's P to the target
7522 * clock. If the clocks don't match, we can't switch
7523 * the display clock by using the FP0/FP1. In such case
7524 * we will disable the LVDS downclock feature.
7527 dev_priv
->display
.find_dpll(limit
, crtc_state
,
7528 dev_priv
->lvds_downclock
,
7532 /* Compat-code for transition, will disappear. */
7533 crtc_state
->dpll
.n
= clock
.n
;
7534 crtc_state
->dpll
.m1
= clock
.m1
;
7535 crtc_state
->dpll
.m2
= clock
.m2
;
7536 crtc_state
->dpll
.p1
= clock
.p1
;
7537 crtc_state
->dpll
.p2
= clock
.p2
;
7541 i8xx_update_pll(crtc
, crtc_state
,
7542 has_reduced_clock
? &reduced_clock
: NULL
,
7544 } else if (IS_CHERRYVIEW(dev
)) {
7545 chv_update_pll(crtc
, crtc_state
);
7546 } else if (IS_VALLEYVIEW(dev
)) {
7547 vlv_update_pll(crtc
, crtc_state
);
7549 i9xx_update_pll(crtc
, crtc_state
,
7550 has_reduced_clock
? &reduced_clock
: NULL
,
7557 static void i9xx_get_pfit_config(struct intel_crtc
*crtc
,
7558 struct intel_crtc_state
*pipe_config
)
7560 struct drm_device
*dev
= crtc
->base
.dev
;
7561 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7564 if (INTEL_INFO(dev
)->gen
<= 3 && (IS_I830(dev
) || !IS_MOBILE(dev
)))
7567 tmp
= I915_READ(PFIT_CONTROL
);
7568 if (!(tmp
& PFIT_ENABLE
))
7571 /* Check whether the pfit is attached to our pipe. */
7572 if (INTEL_INFO(dev
)->gen
< 4) {
7573 if (crtc
->pipe
!= PIPE_B
)
7576 if ((tmp
& PFIT_PIPE_MASK
) != (crtc
->pipe
<< PFIT_PIPE_SHIFT
))
7580 pipe_config
->gmch_pfit
.control
= tmp
;
7581 pipe_config
->gmch_pfit
.pgm_ratios
= I915_READ(PFIT_PGM_RATIOS
);
7582 if (INTEL_INFO(dev
)->gen
< 5)
7583 pipe_config
->gmch_pfit
.lvds_border_bits
=
7584 I915_READ(LVDS
) & LVDS_BORDER_ENABLE
;
7587 static void vlv_crtc_clock_get(struct intel_crtc
*crtc
,
7588 struct intel_crtc_state
*pipe_config
)
7590 struct drm_device
*dev
= crtc
->base
.dev
;
7591 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7592 int pipe
= pipe_config
->cpu_transcoder
;
7593 intel_clock_t clock
;
7595 int refclk
= 100000;
7597 /* In case of MIPI DPLL will not even be used */
7598 if (!(pipe_config
->dpll_hw_state
.dpll
& DPLL_VCO_ENABLE
))
7601 mutex_lock(&dev_priv
->dpio_lock
);
7602 mdiv
= vlv_dpio_read(dev_priv
, pipe
, VLV_PLL_DW3(pipe
));
7603 mutex_unlock(&dev_priv
->dpio_lock
);
7605 clock
.m1
= (mdiv
>> DPIO_M1DIV_SHIFT
) & 7;
7606 clock
.m2
= mdiv
& DPIO_M2DIV_MASK
;
7607 clock
.n
= (mdiv
>> DPIO_N_SHIFT
) & 0xf;
7608 clock
.p1
= (mdiv
>> DPIO_P1_SHIFT
) & 7;
7609 clock
.p2
= (mdiv
>> DPIO_P2_SHIFT
) & 0x1f;
7611 vlv_clock(refclk
, &clock
);
7613 /* clock.dot is the fast clock */
7614 pipe_config
->port_clock
= clock
.dot
/ 5;
7618 i9xx_get_initial_plane_config(struct intel_crtc
*crtc
,
7619 struct intel_initial_plane_config
*plane_config
)
7621 struct drm_device
*dev
= crtc
->base
.dev
;
7622 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7623 u32 val
, base
, offset
;
7624 int pipe
= crtc
->pipe
, plane
= crtc
->plane
;
7625 int fourcc
, pixel_format
;
7626 unsigned int aligned_height
;
7627 struct drm_framebuffer
*fb
;
7628 struct intel_framebuffer
*intel_fb
;
7630 val
= I915_READ(DSPCNTR(plane
));
7631 if (!(val
& DISPLAY_PLANE_ENABLE
))
7634 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
7636 DRM_DEBUG_KMS("failed to alloc fb\n");
7640 fb
= &intel_fb
->base
;
7642 if (INTEL_INFO(dev
)->gen
>= 4) {
7643 if (val
& DISPPLANE_TILED
) {
7644 plane_config
->tiling
= I915_TILING_X
;
7645 fb
->modifier
[0] = I915_FORMAT_MOD_X_TILED
;
7649 pixel_format
= val
& DISPPLANE_PIXFORMAT_MASK
;
7650 fourcc
= i9xx_format_to_fourcc(pixel_format
);
7651 fb
->pixel_format
= fourcc
;
7652 fb
->bits_per_pixel
= drm_format_plane_cpp(fourcc
, 0) * 8;
7654 if (INTEL_INFO(dev
)->gen
>= 4) {
7655 if (plane_config
->tiling
)
7656 offset
= I915_READ(DSPTILEOFF(plane
));
7658 offset
= I915_READ(DSPLINOFF(plane
));
7659 base
= I915_READ(DSPSURF(plane
)) & 0xfffff000;
7661 base
= I915_READ(DSPADDR(plane
));
7663 plane_config
->base
= base
;
7665 val
= I915_READ(PIPESRC(pipe
));
7666 fb
->width
= ((val
>> 16) & 0xfff) + 1;
7667 fb
->height
= ((val
>> 0) & 0xfff) + 1;
7669 val
= I915_READ(DSPSTRIDE(pipe
));
7670 fb
->pitches
[0] = val
& 0xffffffc0;
7672 aligned_height
= intel_fb_align_height(dev
, fb
->height
,
7676 plane_config
->size
= fb
->pitches
[0] * aligned_height
;
7678 DRM_DEBUG_KMS("pipe/plane %c/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
7679 pipe_name(pipe
), plane
, fb
->width
, fb
->height
,
7680 fb
->bits_per_pixel
, base
, fb
->pitches
[0],
7681 plane_config
->size
);
7683 plane_config
->fb
= intel_fb
;
7686 static void chv_crtc_clock_get(struct intel_crtc
*crtc
,
7687 struct intel_crtc_state
*pipe_config
)
7689 struct drm_device
*dev
= crtc
->base
.dev
;
7690 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7691 int pipe
= pipe_config
->cpu_transcoder
;
7692 enum dpio_channel port
= vlv_pipe_to_channel(pipe
);
7693 intel_clock_t clock
;
7694 u32 cmn_dw13
, pll_dw0
, pll_dw1
, pll_dw2
;
7695 int refclk
= 100000;
7697 mutex_lock(&dev_priv
->dpio_lock
);
7698 cmn_dw13
= vlv_dpio_read(dev_priv
, pipe
, CHV_CMN_DW13(port
));
7699 pll_dw0
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW0(port
));
7700 pll_dw1
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW1(port
));
7701 pll_dw2
= vlv_dpio_read(dev_priv
, pipe
, CHV_PLL_DW2(port
));
7702 mutex_unlock(&dev_priv
->dpio_lock
);
7704 clock
.m1
= (pll_dw1
& 0x7) == DPIO_CHV_M1_DIV_BY_2
? 2 : 0;
7705 clock
.m2
= ((pll_dw0
& 0xff) << 22) | (pll_dw2
& 0x3fffff);
7706 clock
.n
= (pll_dw1
>> DPIO_CHV_N_DIV_SHIFT
) & 0xf;
7707 clock
.p1
= (cmn_dw13
>> DPIO_CHV_P1_DIV_SHIFT
) & 0x7;
7708 clock
.p2
= (cmn_dw13
>> DPIO_CHV_P2_DIV_SHIFT
) & 0x1f;
7710 chv_clock(refclk
, &clock
);
7712 /* clock.dot is the fast clock */
7713 pipe_config
->port_clock
= clock
.dot
/ 5;
7716 static bool i9xx_get_pipe_config(struct intel_crtc
*crtc
,
7717 struct intel_crtc_state
*pipe_config
)
7719 struct drm_device
*dev
= crtc
->base
.dev
;
7720 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7723 if (!intel_display_power_is_enabled(dev_priv
,
7724 POWER_DOMAIN_PIPE(crtc
->pipe
)))
7727 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
7728 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
7730 tmp
= I915_READ(PIPECONF(crtc
->pipe
));
7731 if (!(tmp
& PIPECONF_ENABLE
))
7734 if (IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) {
7735 switch (tmp
& PIPECONF_BPC_MASK
) {
7737 pipe_config
->pipe_bpp
= 18;
7740 pipe_config
->pipe_bpp
= 24;
7742 case PIPECONF_10BPC
:
7743 pipe_config
->pipe_bpp
= 30;
7750 if (IS_VALLEYVIEW(dev
) && (tmp
& PIPECONF_COLOR_RANGE_SELECT
))
7751 pipe_config
->limited_color_range
= true;
7753 if (INTEL_INFO(dev
)->gen
< 4)
7754 pipe_config
->double_wide
= tmp
& PIPECONF_DOUBLE_WIDE
;
7756 intel_get_pipe_timings(crtc
, pipe_config
);
7758 i9xx_get_pfit_config(crtc
, pipe_config
);
7760 if (INTEL_INFO(dev
)->gen
>= 4) {
7761 tmp
= I915_READ(DPLL_MD(crtc
->pipe
));
7762 pipe_config
->pixel_multiplier
=
7763 ((tmp
& DPLL_MD_UDI_MULTIPLIER_MASK
)
7764 >> DPLL_MD_UDI_MULTIPLIER_SHIFT
) + 1;
7765 pipe_config
->dpll_hw_state
.dpll_md
= tmp
;
7766 } else if (IS_I945G(dev
) || IS_I945GM(dev
) || IS_G33(dev
)) {
7767 tmp
= I915_READ(DPLL(crtc
->pipe
));
7768 pipe_config
->pixel_multiplier
=
7769 ((tmp
& SDVO_MULTIPLIER_MASK
)
7770 >> SDVO_MULTIPLIER_SHIFT_HIRES
) + 1;
7772 /* Note that on i915G/GM the pixel multiplier is in the sdvo
7773 * port and will be fixed up in the encoder->get_config
7775 pipe_config
->pixel_multiplier
= 1;
7777 pipe_config
->dpll_hw_state
.dpll
= I915_READ(DPLL(crtc
->pipe
));
7778 if (!IS_VALLEYVIEW(dev
)) {
7780 * DPLL_DVO_2X_MODE must be enabled for both DPLLs
7781 * on 830. Filter it out here so that we don't
7782 * report errors due to that.
7785 pipe_config
->dpll_hw_state
.dpll
&= ~DPLL_DVO_2X_MODE
;
7787 pipe_config
->dpll_hw_state
.fp0
= I915_READ(FP0(crtc
->pipe
));
7788 pipe_config
->dpll_hw_state
.fp1
= I915_READ(FP1(crtc
->pipe
));
7790 /* Mask out read-only status bits. */
7791 pipe_config
->dpll_hw_state
.dpll
&= ~(DPLL_LOCK_VLV
|
7792 DPLL_PORTC_READY_MASK
|
7793 DPLL_PORTB_READY_MASK
);
7796 if (IS_CHERRYVIEW(dev
))
7797 chv_crtc_clock_get(crtc
, pipe_config
);
7798 else if (IS_VALLEYVIEW(dev
))
7799 vlv_crtc_clock_get(crtc
, pipe_config
);
7801 i9xx_crtc_clock_get(crtc
, pipe_config
);
7806 static void ironlake_init_pch_refclk(struct drm_device
*dev
)
7808 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7809 struct intel_encoder
*encoder
;
7811 bool has_lvds
= false;
7812 bool has_cpu_edp
= false;
7813 bool has_panel
= false;
7814 bool has_ck505
= false;
7815 bool can_ssc
= false;
7817 /* We need to take the global config into account */
7818 for_each_intel_encoder(dev
, encoder
) {
7819 switch (encoder
->type
) {
7820 case INTEL_OUTPUT_LVDS
:
7824 case INTEL_OUTPUT_EDP
:
7826 if (enc_to_dig_port(&encoder
->base
)->port
== PORT_A
)
7834 if (HAS_PCH_IBX(dev
)) {
7835 has_ck505
= dev_priv
->vbt
.display_clock_mode
;
7836 can_ssc
= has_ck505
;
7842 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n",
7843 has_panel
, has_lvds
, has_ck505
);
7845 /* Ironlake: try to setup display ref clock before DPLL
7846 * enabling. This is only under driver's control after
7847 * PCH B stepping, previous chipset stepping should be
7848 * ignoring this setting.
7850 val
= I915_READ(PCH_DREF_CONTROL
);
7852 /* As we must carefully and slowly disable/enable each source in turn,
7853 * compute the final state we want first and check if we need to
7854 * make any changes at all.
7857 final
&= ~DREF_NONSPREAD_SOURCE_MASK
;
7859 final
|= DREF_NONSPREAD_CK505_ENABLE
;
7861 final
|= DREF_NONSPREAD_SOURCE_ENABLE
;
7863 final
&= ~DREF_SSC_SOURCE_MASK
;
7864 final
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
7865 final
&= ~DREF_SSC1_ENABLE
;
7868 final
|= DREF_SSC_SOURCE_ENABLE
;
7870 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
7871 final
|= DREF_SSC1_ENABLE
;
7874 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
7875 final
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
7877 final
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
7879 final
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
7881 final
|= DREF_SSC_SOURCE_DISABLE
;
7882 final
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
7888 /* Always enable nonspread source */
7889 val
&= ~DREF_NONSPREAD_SOURCE_MASK
;
7892 val
|= DREF_NONSPREAD_CK505_ENABLE
;
7894 val
|= DREF_NONSPREAD_SOURCE_ENABLE
;
7897 val
&= ~DREF_SSC_SOURCE_MASK
;
7898 val
|= DREF_SSC_SOURCE_ENABLE
;
7900 /* SSC must be turned on before enabling the CPU output */
7901 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
7902 DRM_DEBUG_KMS("Using SSC on panel\n");
7903 val
|= DREF_SSC1_ENABLE
;
7905 val
&= ~DREF_SSC1_ENABLE
;
7907 /* Get SSC going before enabling the outputs */
7908 I915_WRITE(PCH_DREF_CONTROL
, val
);
7909 POSTING_READ(PCH_DREF_CONTROL
);
7912 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
7914 /* Enable CPU source on CPU attached eDP */
7916 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
7917 DRM_DEBUG_KMS("Using SSC on eDP\n");
7918 val
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
7920 val
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
7922 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
7924 I915_WRITE(PCH_DREF_CONTROL
, val
);
7925 POSTING_READ(PCH_DREF_CONTROL
);
7928 DRM_DEBUG_KMS("Disabling SSC entirely\n");
7930 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
7932 /* Turn off CPU output */
7933 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
7935 I915_WRITE(PCH_DREF_CONTROL
, val
);
7936 POSTING_READ(PCH_DREF_CONTROL
);
7939 /* Turn off the SSC source */
7940 val
&= ~DREF_SSC_SOURCE_MASK
;
7941 val
|= DREF_SSC_SOURCE_DISABLE
;
7944 val
&= ~DREF_SSC1_ENABLE
;
7946 I915_WRITE(PCH_DREF_CONTROL
, val
);
7947 POSTING_READ(PCH_DREF_CONTROL
);
7951 BUG_ON(val
!= final
);
7954 static void lpt_reset_fdi_mphy(struct drm_i915_private
*dev_priv
)
7958 tmp
= I915_READ(SOUTH_CHICKEN2
);
7959 tmp
|= FDI_MPHY_IOSFSB_RESET_CTL
;
7960 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
7962 if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2
) &
7963 FDI_MPHY_IOSFSB_RESET_STATUS
, 100))
7964 DRM_ERROR("FDI mPHY reset assert timeout\n");
7966 tmp
= I915_READ(SOUTH_CHICKEN2
);
7967 tmp
&= ~FDI_MPHY_IOSFSB_RESET_CTL
;
7968 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
7970 if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2
) &
7971 FDI_MPHY_IOSFSB_RESET_STATUS
) == 0, 100))
7972 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
7975 /* WaMPhyProgramming:hsw */
7976 static void lpt_program_fdi_mphy(struct drm_i915_private
*dev_priv
)
7980 tmp
= intel_sbi_read(dev_priv
, 0x8008, SBI_MPHY
);
7981 tmp
&= ~(0xFF << 24);
7982 tmp
|= (0x12 << 24);
7983 intel_sbi_write(dev_priv
, 0x8008, tmp
, SBI_MPHY
);
7985 tmp
= intel_sbi_read(dev_priv
, 0x2008, SBI_MPHY
);
7987 intel_sbi_write(dev_priv
, 0x2008, tmp
, SBI_MPHY
);
7989 tmp
= intel_sbi_read(dev_priv
, 0x2108, SBI_MPHY
);
7991 intel_sbi_write(dev_priv
, 0x2108, tmp
, SBI_MPHY
);
7993 tmp
= intel_sbi_read(dev_priv
, 0x206C, SBI_MPHY
);
7994 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
7995 intel_sbi_write(dev_priv
, 0x206C, tmp
, SBI_MPHY
);
7997 tmp
= intel_sbi_read(dev_priv
, 0x216C, SBI_MPHY
);
7998 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
7999 intel_sbi_write(dev_priv
, 0x216C, tmp
, SBI_MPHY
);
8001 tmp
= intel_sbi_read(dev_priv
, 0x2080, SBI_MPHY
);
8004 intel_sbi_write(dev_priv
, 0x2080, tmp
, SBI_MPHY
);
8006 tmp
= intel_sbi_read(dev_priv
, 0x2180, SBI_MPHY
);
8009 intel_sbi_write(dev_priv
, 0x2180, tmp
, SBI_MPHY
);
8011 tmp
= intel_sbi_read(dev_priv
, 0x208C, SBI_MPHY
);
8014 intel_sbi_write(dev_priv
, 0x208C, tmp
, SBI_MPHY
);
8016 tmp
= intel_sbi_read(dev_priv
, 0x218C, SBI_MPHY
);
8019 intel_sbi_write(dev_priv
, 0x218C, tmp
, SBI_MPHY
);
8021 tmp
= intel_sbi_read(dev_priv
, 0x2098, SBI_MPHY
);
8022 tmp
&= ~(0xFF << 16);
8023 tmp
|= (0x1C << 16);
8024 intel_sbi_write(dev_priv
, 0x2098, tmp
, SBI_MPHY
);
8026 tmp
= intel_sbi_read(dev_priv
, 0x2198, SBI_MPHY
);
8027 tmp
&= ~(0xFF << 16);
8028 tmp
|= (0x1C << 16);
8029 intel_sbi_write(dev_priv
, 0x2198, tmp
, SBI_MPHY
);
8031 tmp
= intel_sbi_read(dev_priv
, 0x20C4, SBI_MPHY
);
8033 intel_sbi_write(dev_priv
, 0x20C4, tmp
, SBI_MPHY
);
8035 tmp
= intel_sbi_read(dev_priv
, 0x21C4, SBI_MPHY
);
8037 intel_sbi_write(dev_priv
, 0x21C4, tmp
, SBI_MPHY
);
8039 tmp
= intel_sbi_read(dev_priv
, 0x20EC, SBI_MPHY
);
8040 tmp
&= ~(0xF << 28);
8042 intel_sbi_write(dev_priv
, 0x20EC, tmp
, SBI_MPHY
);
8044 tmp
= intel_sbi_read(dev_priv
, 0x21EC, SBI_MPHY
);
8045 tmp
&= ~(0xF << 28);
8047 intel_sbi_write(dev_priv
, 0x21EC, tmp
, SBI_MPHY
);
8050 /* Implements 3 different sequences from BSpec chapter "Display iCLK
8051 * Programming" based on the parameters passed:
8052 * - Sequence to enable CLKOUT_DP
8053 * - Sequence to enable CLKOUT_DP without spread
8054 * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O
8056 static void lpt_enable_clkout_dp(struct drm_device
*dev
, bool with_spread
,
8059 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8062 if (WARN(with_fdi
&& !with_spread
, "FDI requires downspread\n"))
8064 if (WARN(dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
&&
8065 with_fdi
, "LP PCH doesn't have FDI\n"))
8068 mutex_lock(&dev_priv
->dpio_lock
);
8070 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
8071 tmp
&= ~SBI_SSCCTL_DISABLE
;
8072 tmp
|= SBI_SSCCTL_PATHALT
;
8073 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
8078 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
8079 tmp
&= ~SBI_SSCCTL_PATHALT
;
8080 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
8083 lpt_reset_fdi_mphy(dev_priv
);
8084 lpt_program_fdi_mphy(dev_priv
);
8088 reg
= (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) ?
8089 SBI_GEN0
: SBI_DBUFF0
;
8090 tmp
= intel_sbi_read(dev_priv
, reg
, SBI_ICLK
);
8091 tmp
|= SBI_GEN0_CFG_BUFFENABLE_DISABLE
;
8092 intel_sbi_write(dev_priv
, reg
, tmp
, SBI_ICLK
);
8094 mutex_unlock(&dev_priv
->dpio_lock
);
8097 /* Sequence to disable CLKOUT_DP */
8098 static void lpt_disable_clkout_dp(struct drm_device
*dev
)
8100 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8103 mutex_lock(&dev_priv
->dpio_lock
);
8105 reg
= (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) ?
8106 SBI_GEN0
: SBI_DBUFF0
;
8107 tmp
= intel_sbi_read(dev_priv
, reg
, SBI_ICLK
);
8108 tmp
&= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE
;
8109 intel_sbi_write(dev_priv
, reg
, tmp
, SBI_ICLK
);
8111 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
8112 if (!(tmp
& SBI_SSCCTL_DISABLE
)) {
8113 if (!(tmp
& SBI_SSCCTL_PATHALT
)) {
8114 tmp
|= SBI_SSCCTL_PATHALT
;
8115 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
8118 tmp
|= SBI_SSCCTL_DISABLE
;
8119 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
8122 mutex_unlock(&dev_priv
->dpio_lock
);
8125 static void lpt_init_pch_refclk(struct drm_device
*dev
)
8127 struct intel_encoder
*encoder
;
8128 bool has_vga
= false;
8130 for_each_intel_encoder(dev
, encoder
) {
8131 switch (encoder
->type
) {
8132 case INTEL_OUTPUT_ANALOG
:
8141 lpt_enable_clkout_dp(dev
, true, true);
8143 lpt_disable_clkout_dp(dev
);
8147 * Initialize reference clocks when the driver loads
8149 void intel_init_pch_refclk(struct drm_device
*dev
)
8151 if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
8152 ironlake_init_pch_refclk(dev
);
8153 else if (HAS_PCH_LPT(dev
))
8154 lpt_init_pch_refclk(dev
);
8157 static int ironlake_get_refclk(struct intel_crtc_state
*crtc_state
)
8159 struct drm_device
*dev
= crtc_state
->base
.crtc
->dev
;
8160 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8161 struct drm_atomic_state
*state
= crtc_state
->base
.state
;
8162 struct drm_connector
*connector
;
8163 struct drm_connector_state
*connector_state
;
8164 struct intel_encoder
*encoder
;
8165 int num_connectors
= 0, i
;
8166 bool is_lvds
= false;
8168 for_each_connector_in_state(state
, connector
, connector_state
, i
) {
8169 if (connector_state
->crtc
!= crtc_state
->base
.crtc
)
8172 encoder
= to_intel_encoder(connector_state
->best_encoder
);
8174 switch (encoder
->type
) {
8175 case INTEL_OUTPUT_LVDS
:
8184 if (is_lvds
&& intel_panel_use_ssc(dev_priv
) && num_connectors
< 2) {
8185 DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n",
8186 dev_priv
->vbt
.lvds_ssc_freq
);
8187 return dev_priv
->vbt
.lvds_ssc_freq
;
8193 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
)
8195 struct drm_i915_private
*dev_priv
= crtc
->dev
->dev_private
;
8196 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8197 int pipe
= intel_crtc
->pipe
;
8202 switch (intel_crtc
->config
->pipe_bpp
) {
8204 val
|= PIPECONF_6BPC
;
8207 val
|= PIPECONF_8BPC
;
8210 val
|= PIPECONF_10BPC
;
8213 val
|= PIPECONF_12BPC
;
8216 /* Case prevented by intel_choose_pipe_bpp_dither. */
8220 if (intel_crtc
->config
->dither
)
8221 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
8223 if (intel_crtc
->config
->base
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
8224 val
|= PIPECONF_INTERLACED_ILK
;
8226 val
|= PIPECONF_PROGRESSIVE
;
8228 if (intel_crtc
->config
->limited_color_range
)
8229 val
|= PIPECONF_COLOR_RANGE_SELECT
;
8231 I915_WRITE(PIPECONF(pipe
), val
);
8232 POSTING_READ(PIPECONF(pipe
));
8236 * Set up the pipe CSC unit.
8238 * Currently only full range RGB to limited range RGB conversion
8239 * is supported, but eventually this should handle various
8240 * RGB<->YCbCr scenarios as well.
8242 static void intel_set_pipe_csc(struct drm_crtc
*crtc
)
8244 struct drm_device
*dev
= crtc
->dev
;
8245 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8246 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8247 int pipe
= intel_crtc
->pipe
;
8248 uint16_t coeff
= 0x7800; /* 1.0 */
8251 * TODO: Check what kind of values actually come out of the pipe
8252 * with these coeff/postoff values and adjust to get the best
8253 * accuracy. Perhaps we even need to take the bpc value into
8257 if (intel_crtc
->config
->limited_color_range
)
8258 coeff
= ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */
8261 * GY/GU and RY/RU should be the other way around according
8262 * to BSpec, but reality doesn't agree. Just set them up in
8263 * a way that results in the correct picture.
8265 I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe
), coeff
<< 16);
8266 I915_WRITE(PIPE_CSC_COEFF_BY(pipe
), 0);
8268 I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe
), coeff
);
8269 I915_WRITE(PIPE_CSC_COEFF_BU(pipe
), 0);
8271 I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe
), 0);
8272 I915_WRITE(PIPE_CSC_COEFF_BV(pipe
), coeff
<< 16);
8274 I915_WRITE(PIPE_CSC_PREOFF_HI(pipe
), 0);
8275 I915_WRITE(PIPE_CSC_PREOFF_ME(pipe
), 0);
8276 I915_WRITE(PIPE_CSC_PREOFF_LO(pipe
), 0);
8278 if (INTEL_INFO(dev
)->gen
> 6) {
8279 uint16_t postoff
= 0;
8281 if (intel_crtc
->config
->limited_color_range
)
8282 postoff
= (16 * (1 << 12) / 255) & 0x1fff;
8284 I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe
), postoff
);
8285 I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe
), postoff
);
8286 I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe
), postoff
);
8288 I915_WRITE(PIPE_CSC_MODE(pipe
), 0);
8290 uint32_t mode
= CSC_MODE_YUV_TO_RGB
;
8292 if (intel_crtc
->config
->limited_color_range
)
8293 mode
|= CSC_BLACK_SCREEN_OFFSET
;
8295 I915_WRITE(PIPE_CSC_MODE(pipe
), mode
);
8299 static void haswell_set_pipeconf(struct drm_crtc
*crtc
)
8301 struct drm_device
*dev
= crtc
->dev
;
8302 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8303 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
8304 enum pipe pipe
= intel_crtc
->pipe
;
8305 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
8310 if (IS_HASWELL(dev
) && intel_crtc
->config
->dither
)
8311 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
8313 if (intel_crtc
->config
->base
.adjusted_mode
.flags
& DRM_MODE_FLAG_INTERLACE
)
8314 val
|= PIPECONF_INTERLACED_ILK
;
8316 val
|= PIPECONF_PROGRESSIVE
;
8318 I915_WRITE(PIPECONF(cpu_transcoder
), val
);
8319 POSTING_READ(PIPECONF(cpu_transcoder
));
8321 I915_WRITE(GAMMA_MODE(intel_crtc
->pipe
), GAMMA_MODE_MODE_8BIT
);
8322 POSTING_READ(GAMMA_MODE(intel_crtc
->pipe
));
8324 if (IS_BROADWELL(dev
) || INTEL_INFO(dev
)->gen
>= 9) {
8327 switch (intel_crtc
->config
->pipe_bpp
) {
8329 val
|= PIPEMISC_DITHER_6_BPC
;
8332 val
|= PIPEMISC_DITHER_8_BPC
;
8335 val
|= PIPEMISC_DITHER_10_BPC
;
8338 val
|= PIPEMISC_DITHER_12_BPC
;
8341 /* Case prevented by pipe_config_set_bpp. */
8345 if (intel_crtc
->config
->dither
)
8346 val
|= PIPEMISC_DITHER_ENABLE
| PIPEMISC_DITHER_TYPE_SP
;
8348 I915_WRITE(PIPEMISC(pipe
), val
);
8352 static bool ironlake_compute_clocks(struct drm_crtc
*crtc
,
8353 struct intel_crtc_state
*crtc_state
,
8354 intel_clock_t
*clock
,
8355 bool *has_reduced_clock
,
8356 intel_clock_t
*reduced_clock
)
8358 struct drm_device
*dev
= crtc
->dev
;
8359 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8361 const intel_limit_t
*limit
;
8362 bool ret
, is_lvds
= false;
8364 is_lvds
= intel_pipe_will_have_type(crtc_state
, INTEL_OUTPUT_LVDS
);
8366 refclk
= ironlake_get_refclk(crtc_state
);
8369 * Returns a set of divisors for the desired target clock with the given
8370 * refclk, or FALSE. The returned values represent the clock equation:
8371 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
8373 limit
= intel_limit(crtc_state
, refclk
);
8374 ret
= dev_priv
->display
.find_dpll(limit
, crtc_state
,
8375 crtc_state
->port_clock
,
8376 refclk
, NULL
, clock
);
8380 if (is_lvds
&& dev_priv
->lvds_downclock_avail
) {
8382 * Ensure we match the reduced clock's P to the target clock.
8383 * If the clocks don't match, we can't switch the display clock
8384 * by using the FP0/FP1. In such case we will disable the LVDS
8385 * downclock feature.
8387 *has_reduced_clock
=
8388 dev_priv
->display
.find_dpll(limit
, crtc_state
,
8389 dev_priv
->lvds_downclock
,
8397 int ironlake_get_lanes_required(int target_clock
, int link_bw
, int bpp
)
8400 * Account for spread spectrum to avoid
8401 * oversubscribing the link. Max center spread
8402 * is 2.5%; use 5% for safety's sake.
8404 u32 bps
= target_clock
* bpp
* 21 / 20;
8405 return DIV_ROUND_UP(bps
, link_bw
* 8);
8408 static bool ironlake_needs_fb_cb_tune(struct dpll
*dpll
, int factor
)
8410 return i9xx_dpll_compute_m(dpll
) < factor
* dpll
->n
;
8413 static uint32_t ironlake_compute_dpll(struct intel_crtc
*intel_crtc
,
8414 struct intel_crtc_state
*crtc_state
,
8416 intel_clock_t
*reduced_clock
, u32
*fp2
)
8418 struct drm_crtc
*crtc
= &intel_crtc
->base
;
8419 struct drm_device
*dev
= crtc
->dev
;
8420 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8421 struct drm_atomic_state
*state
= crtc_state
->base
.state
;
8422 struct drm_connector
*connector
;
8423 struct drm_connector_state
*connector_state
;
8424 struct intel_encoder
*encoder
;
8426 int factor
, num_connectors
= 0, i
;
8427 bool is_lvds
= false, is_sdvo
= false;
8429 for_each_connector_in_state(state
, connector
, connector_state
, i
) {
8430 if (connector_state
->crtc
!= crtc_state
->base
.crtc
)
8433 encoder
= to_intel_encoder(connector_state
->best_encoder
);
8435 switch (encoder
->type
) {
8436 case INTEL_OUTPUT_LVDS
:
8439 case INTEL_OUTPUT_SDVO
:
8440 case INTEL_OUTPUT_HDMI
:
8450 /* Enable autotuning of the PLL clock (if permissible) */
8453 if ((intel_panel_use_ssc(dev_priv
) &&
8454 dev_priv
->vbt
.lvds_ssc_freq
== 100000) ||
8455 (HAS_PCH_IBX(dev
) && intel_is_dual_link_lvds(dev
)))
8457 } else if (crtc_state
->sdvo_tv_clock
)
8460 if (ironlake_needs_fb_cb_tune(&crtc_state
->dpll
, factor
))
8463 if (fp2
&& (reduced_clock
->m
< factor
* reduced_clock
->n
))
8469 dpll
|= DPLLB_MODE_LVDS
;
8471 dpll
|= DPLLB_MODE_DAC_SERIAL
;
8473 dpll
|= (crtc_state
->pixel_multiplier
- 1)
8474 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
;
8477 dpll
|= DPLL_SDVO_HIGH_SPEED
;
8478 if (crtc_state
->has_dp_encoder
)
8479 dpll
|= DPLL_SDVO_HIGH_SPEED
;
8481 /* compute bitmask from p1 value */
8482 dpll
|= (1 << (crtc_state
->dpll
.p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
8484 dpll
|= (1 << (crtc_state
->dpll
.p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
8486 switch (crtc_state
->dpll
.p2
) {
8488 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
8491 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
8494 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
8497 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
8501 if (is_lvds
&& intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
8502 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
8504 dpll
|= PLL_REF_INPUT_DREFCLK
;
8506 return dpll
| DPLL_VCO_ENABLE
;
8509 static int ironlake_crtc_compute_clock(struct intel_crtc
*crtc
,
8510 struct intel_crtc_state
*crtc_state
)
8512 struct drm_device
*dev
= crtc
->base
.dev
;
8513 intel_clock_t clock
, reduced_clock
;
8514 u32 dpll
= 0, fp
= 0, fp2
= 0;
8515 bool ok
, has_reduced_clock
= false;
8516 bool is_lvds
= false;
8517 struct intel_shared_dpll
*pll
;
8519 is_lvds
= intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
);
8521 WARN(!(HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
)),
8522 "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev
));
8524 ok
= ironlake_compute_clocks(&crtc
->base
, crtc_state
, &clock
,
8525 &has_reduced_clock
, &reduced_clock
);
8526 if (!ok
&& !crtc_state
->clock_set
) {
8527 DRM_ERROR("Couldn't find PLL settings for mode!\n");
8530 /* Compat-code for transition, will disappear. */
8531 if (!crtc_state
->clock_set
) {
8532 crtc_state
->dpll
.n
= clock
.n
;
8533 crtc_state
->dpll
.m1
= clock
.m1
;
8534 crtc_state
->dpll
.m2
= clock
.m2
;
8535 crtc_state
->dpll
.p1
= clock
.p1
;
8536 crtc_state
->dpll
.p2
= clock
.p2
;
8539 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
8540 if (crtc_state
->has_pch_encoder
) {
8541 fp
= i9xx_dpll_compute_fp(&crtc_state
->dpll
);
8542 if (has_reduced_clock
)
8543 fp2
= i9xx_dpll_compute_fp(&reduced_clock
);
8545 dpll
= ironlake_compute_dpll(crtc
, crtc_state
,
8546 &fp
, &reduced_clock
,
8547 has_reduced_clock
? &fp2
: NULL
);
8549 crtc_state
->dpll_hw_state
.dpll
= dpll
;
8550 crtc_state
->dpll_hw_state
.fp0
= fp
;
8551 if (has_reduced_clock
)
8552 crtc_state
->dpll_hw_state
.fp1
= fp2
;
8554 crtc_state
->dpll_hw_state
.fp1
= fp
;
8556 pll
= intel_get_shared_dpll(crtc
, crtc_state
);
8558 DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
8559 pipe_name(crtc
->pipe
));
8564 if (is_lvds
&& has_reduced_clock
)
8565 crtc
->lowfreq_avail
= true;
8567 crtc
->lowfreq_avail
= false;
8572 static void intel_pch_transcoder_get_m_n(struct intel_crtc
*crtc
,
8573 struct intel_link_m_n
*m_n
)
8575 struct drm_device
*dev
= crtc
->base
.dev
;
8576 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8577 enum pipe pipe
= crtc
->pipe
;
8579 m_n
->link_m
= I915_READ(PCH_TRANS_LINK_M1(pipe
));
8580 m_n
->link_n
= I915_READ(PCH_TRANS_LINK_N1(pipe
));
8581 m_n
->gmch_m
= I915_READ(PCH_TRANS_DATA_M1(pipe
))
8583 m_n
->gmch_n
= I915_READ(PCH_TRANS_DATA_N1(pipe
));
8584 m_n
->tu
= ((I915_READ(PCH_TRANS_DATA_M1(pipe
))
8585 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
8588 static void intel_cpu_transcoder_get_m_n(struct intel_crtc
*crtc
,
8589 enum transcoder transcoder
,
8590 struct intel_link_m_n
*m_n
,
8591 struct intel_link_m_n
*m2_n2
)
8593 struct drm_device
*dev
= crtc
->base
.dev
;
8594 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8595 enum pipe pipe
= crtc
->pipe
;
8597 if (INTEL_INFO(dev
)->gen
>= 5) {
8598 m_n
->link_m
= I915_READ(PIPE_LINK_M1(transcoder
));
8599 m_n
->link_n
= I915_READ(PIPE_LINK_N1(transcoder
));
8600 m_n
->gmch_m
= I915_READ(PIPE_DATA_M1(transcoder
))
8602 m_n
->gmch_n
= I915_READ(PIPE_DATA_N1(transcoder
));
8603 m_n
->tu
= ((I915_READ(PIPE_DATA_M1(transcoder
))
8604 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
8605 /* Read M2_N2 registers only for gen < 8 (M2_N2 available for
8606 * gen < 8) and if DRRS is supported (to make sure the
8607 * registers are not unnecessarily read).
8609 if (m2_n2
&& INTEL_INFO(dev
)->gen
< 8 &&
8610 crtc
->config
->has_drrs
) {
8611 m2_n2
->link_m
= I915_READ(PIPE_LINK_M2(transcoder
));
8612 m2_n2
->link_n
= I915_READ(PIPE_LINK_N2(transcoder
));
8613 m2_n2
->gmch_m
= I915_READ(PIPE_DATA_M2(transcoder
))
8615 m2_n2
->gmch_n
= I915_READ(PIPE_DATA_N2(transcoder
));
8616 m2_n2
->tu
= ((I915_READ(PIPE_DATA_M2(transcoder
))
8617 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
8620 m_n
->link_m
= I915_READ(PIPE_LINK_M_G4X(pipe
));
8621 m_n
->link_n
= I915_READ(PIPE_LINK_N_G4X(pipe
));
8622 m_n
->gmch_m
= I915_READ(PIPE_DATA_M_G4X(pipe
))
8624 m_n
->gmch_n
= I915_READ(PIPE_DATA_N_G4X(pipe
));
8625 m_n
->tu
= ((I915_READ(PIPE_DATA_M_G4X(pipe
))
8626 & TU_SIZE_MASK
) >> TU_SIZE_SHIFT
) + 1;
8630 void intel_dp_get_m_n(struct intel_crtc
*crtc
,
8631 struct intel_crtc_state
*pipe_config
)
8633 if (pipe_config
->has_pch_encoder
)
8634 intel_pch_transcoder_get_m_n(crtc
, &pipe_config
->dp_m_n
);
8636 intel_cpu_transcoder_get_m_n(crtc
, pipe_config
->cpu_transcoder
,
8637 &pipe_config
->dp_m_n
,
8638 &pipe_config
->dp_m2_n2
);
8641 static void ironlake_get_fdi_m_n_config(struct intel_crtc
*crtc
,
8642 struct intel_crtc_state
*pipe_config
)
8644 intel_cpu_transcoder_get_m_n(crtc
, pipe_config
->cpu_transcoder
,
8645 &pipe_config
->fdi_m_n
, NULL
);
8648 static void skylake_get_pfit_config(struct intel_crtc
*crtc
,
8649 struct intel_crtc_state
*pipe_config
)
8651 struct drm_device
*dev
= crtc
->base
.dev
;
8652 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8653 struct intel_crtc_scaler_state
*scaler_state
= &pipe_config
->scaler_state
;
8654 uint32_t ps_ctrl
= 0;
8658 /* find scaler attached to this pipe */
8659 for (i
= 0; i
< crtc
->num_scalers
; i
++) {
8660 ps_ctrl
= I915_READ(SKL_PS_CTRL(crtc
->pipe
, i
));
8661 if (ps_ctrl
& PS_SCALER_EN
&& !(ps_ctrl
& PS_PLANE_SEL_MASK
)) {
8663 pipe_config
->pch_pfit
.enabled
= true;
8664 pipe_config
->pch_pfit
.pos
= I915_READ(SKL_PS_WIN_POS(crtc
->pipe
, i
));
8665 pipe_config
->pch_pfit
.size
= I915_READ(SKL_PS_WIN_SZ(crtc
->pipe
, i
));
8670 scaler_state
->scaler_id
= id
;
8672 scaler_state
->scaler_users
|= (1 << SKL_CRTC_INDEX
);
8674 scaler_state
->scaler_users
&= ~(1 << SKL_CRTC_INDEX
);
8679 skylake_get_initial_plane_config(struct intel_crtc
*crtc
,
8680 struct intel_initial_plane_config
*plane_config
)
8682 struct drm_device
*dev
= crtc
->base
.dev
;
8683 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8684 u32 val
, base
, offset
, stride_mult
, tiling
;
8685 int pipe
= crtc
->pipe
;
8686 int fourcc
, pixel_format
;
8687 unsigned int aligned_height
;
8688 struct drm_framebuffer
*fb
;
8689 struct intel_framebuffer
*intel_fb
;
8691 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
8693 DRM_DEBUG_KMS("failed to alloc fb\n");
8697 fb
= &intel_fb
->base
;
8699 val
= I915_READ(PLANE_CTL(pipe
, 0));
8700 if (!(val
& PLANE_CTL_ENABLE
))
8703 pixel_format
= val
& PLANE_CTL_FORMAT_MASK
;
8704 fourcc
= skl_format_to_fourcc(pixel_format
,
8705 val
& PLANE_CTL_ORDER_RGBX
,
8706 val
& PLANE_CTL_ALPHA_MASK
);
8707 fb
->pixel_format
= fourcc
;
8708 fb
->bits_per_pixel
= drm_format_plane_cpp(fourcc
, 0) * 8;
8710 tiling
= val
& PLANE_CTL_TILED_MASK
;
8712 case PLANE_CTL_TILED_LINEAR
:
8713 fb
->modifier
[0] = DRM_FORMAT_MOD_NONE
;
8715 case PLANE_CTL_TILED_X
:
8716 plane_config
->tiling
= I915_TILING_X
;
8717 fb
->modifier
[0] = I915_FORMAT_MOD_X_TILED
;
8719 case PLANE_CTL_TILED_Y
:
8720 fb
->modifier
[0] = I915_FORMAT_MOD_Y_TILED
;
8722 case PLANE_CTL_TILED_YF
:
8723 fb
->modifier
[0] = I915_FORMAT_MOD_Yf_TILED
;
8726 MISSING_CASE(tiling
);
8730 base
= I915_READ(PLANE_SURF(pipe
, 0)) & 0xfffff000;
8731 plane_config
->base
= base
;
8733 offset
= I915_READ(PLANE_OFFSET(pipe
, 0));
8735 val
= I915_READ(PLANE_SIZE(pipe
, 0));
8736 fb
->height
= ((val
>> 16) & 0xfff) + 1;
8737 fb
->width
= ((val
>> 0) & 0x1fff) + 1;
8739 val
= I915_READ(PLANE_STRIDE(pipe
, 0));
8740 stride_mult
= intel_fb_stride_alignment(dev
, fb
->modifier
[0],
8742 fb
->pitches
[0] = (val
& 0x3ff) * stride_mult
;
8744 aligned_height
= intel_fb_align_height(dev
, fb
->height
,
8748 plane_config
->size
= fb
->pitches
[0] * aligned_height
;
8750 DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
8751 pipe_name(pipe
), fb
->width
, fb
->height
,
8752 fb
->bits_per_pixel
, base
, fb
->pitches
[0],
8753 plane_config
->size
);
8755 plane_config
->fb
= intel_fb
;
8762 static void ironlake_get_pfit_config(struct intel_crtc
*crtc
,
8763 struct intel_crtc_state
*pipe_config
)
8765 struct drm_device
*dev
= crtc
->base
.dev
;
8766 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8769 tmp
= I915_READ(PF_CTL(crtc
->pipe
));
8771 if (tmp
& PF_ENABLE
) {
8772 pipe_config
->pch_pfit
.enabled
= true;
8773 pipe_config
->pch_pfit
.pos
= I915_READ(PF_WIN_POS(crtc
->pipe
));
8774 pipe_config
->pch_pfit
.size
= I915_READ(PF_WIN_SZ(crtc
->pipe
));
8776 /* We currently do not free assignements of panel fitters on
8777 * ivb/hsw (since we don't use the higher upscaling modes which
8778 * differentiates them) so just WARN about this case for now. */
8780 WARN_ON((tmp
& PF_PIPE_SEL_MASK_IVB
) !=
8781 PF_PIPE_SEL_IVB(crtc
->pipe
));
8787 ironlake_get_initial_plane_config(struct intel_crtc
*crtc
,
8788 struct intel_initial_plane_config
*plane_config
)
8790 struct drm_device
*dev
= crtc
->base
.dev
;
8791 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8792 u32 val
, base
, offset
;
8793 int pipe
= crtc
->pipe
;
8794 int fourcc
, pixel_format
;
8795 unsigned int aligned_height
;
8796 struct drm_framebuffer
*fb
;
8797 struct intel_framebuffer
*intel_fb
;
8799 val
= I915_READ(DSPCNTR(pipe
));
8800 if (!(val
& DISPLAY_PLANE_ENABLE
))
8803 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
8805 DRM_DEBUG_KMS("failed to alloc fb\n");
8809 fb
= &intel_fb
->base
;
8811 if (INTEL_INFO(dev
)->gen
>= 4) {
8812 if (val
& DISPPLANE_TILED
) {
8813 plane_config
->tiling
= I915_TILING_X
;
8814 fb
->modifier
[0] = I915_FORMAT_MOD_X_TILED
;
8818 pixel_format
= val
& DISPPLANE_PIXFORMAT_MASK
;
8819 fourcc
= i9xx_format_to_fourcc(pixel_format
);
8820 fb
->pixel_format
= fourcc
;
8821 fb
->bits_per_pixel
= drm_format_plane_cpp(fourcc
, 0) * 8;
8823 base
= I915_READ(DSPSURF(pipe
)) & 0xfffff000;
8824 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
8825 offset
= I915_READ(DSPOFFSET(pipe
));
8827 if (plane_config
->tiling
)
8828 offset
= I915_READ(DSPTILEOFF(pipe
));
8830 offset
= I915_READ(DSPLINOFF(pipe
));
8832 plane_config
->base
= base
;
8834 val
= I915_READ(PIPESRC(pipe
));
8835 fb
->width
= ((val
>> 16) & 0xfff) + 1;
8836 fb
->height
= ((val
>> 0) & 0xfff) + 1;
8838 val
= I915_READ(DSPSTRIDE(pipe
));
8839 fb
->pitches
[0] = val
& 0xffffffc0;
8841 aligned_height
= intel_fb_align_height(dev
, fb
->height
,
8845 plane_config
->size
= fb
->pitches
[0] * aligned_height
;
8847 DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
8848 pipe_name(pipe
), fb
->width
, fb
->height
,
8849 fb
->bits_per_pixel
, base
, fb
->pitches
[0],
8850 plane_config
->size
);
8852 plane_config
->fb
= intel_fb
;
8855 static bool ironlake_get_pipe_config(struct intel_crtc
*crtc
,
8856 struct intel_crtc_state
*pipe_config
)
8858 struct drm_device
*dev
= crtc
->base
.dev
;
8859 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8862 if (!intel_display_power_is_enabled(dev_priv
,
8863 POWER_DOMAIN_PIPE(crtc
->pipe
)))
8866 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
8867 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
8869 tmp
= I915_READ(PIPECONF(crtc
->pipe
));
8870 if (!(tmp
& PIPECONF_ENABLE
))
8873 switch (tmp
& PIPECONF_BPC_MASK
) {
8875 pipe_config
->pipe_bpp
= 18;
8878 pipe_config
->pipe_bpp
= 24;
8880 case PIPECONF_10BPC
:
8881 pipe_config
->pipe_bpp
= 30;
8883 case PIPECONF_12BPC
:
8884 pipe_config
->pipe_bpp
= 36;
8890 if (tmp
& PIPECONF_COLOR_RANGE_SELECT
)
8891 pipe_config
->limited_color_range
= true;
8893 if (I915_READ(PCH_TRANSCONF(crtc
->pipe
)) & TRANS_ENABLE
) {
8894 struct intel_shared_dpll
*pll
;
8896 pipe_config
->has_pch_encoder
= true;
8898 tmp
= I915_READ(FDI_RX_CTL(crtc
->pipe
));
8899 pipe_config
->fdi_lanes
= ((FDI_DP_PORT_WIDTH_MASK
& tmp
) >>
8900 FDI_DP_PORT_WIDTH_SHIFT
) + 1;
8902 ironlake_get_fdi_m_n_config(crtc
, pipe_config
);
8904 if (HAS_PCH_IBX(dev_priv
->dev
)) {
8905 pipe_config
->shared_dpll
=
8906 (enum intel_dpll_id
) crtc
->pipe
;
8908 tmp
= I915_READ(PCH_DPLL_SEL
);
8909 if (tmp
& TRANS_DPLLB_SEL(crtc
->pipe
))
8910 pipe_config
->shared_dpll
= DPLL_ID_PCH_PLL_B
;
8912 pipe_config
->shared_dpll
= DPLL_ID_PCH_PLL_A
;
8915 pll
= &dev_priv
->shared_dplls
[pipe_config
->shared_dpll
];
8917 WARN_ON(!pll
->get_hw_state(dev_priv
, pll
,
8918 &pipe_config
->dpll_hw_state
));
8920 tmp
= pipe_config
->dpll_hw_state
.dpll
;
8921 pipe_config
->pixel_multiplier
=
8922 ((tmp
& PLL_REF_SDVO_HDMI_MULTIPLIER_MASK
)
8923 >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
) + 1;
8925 ironlake_pch_clock_get(crtc
, pipe_config
);
8927 pipe_config
->pixel_multiplier
= 1;
8930 intel_get_pipe_timings(crtc
, pipe_config
);
8932 ironlake_get_pfit_config(crtc
, pipe_config
);
8937 static void assert_can_disable_lcpll(struct drm_i915_private
*dev_priv
)
8939 struct drm_device
*dev
= dev_priv
->dev
;
8940 struct intel_crtc
*crtc
;
8942 for_each_intel_crtc(dev
, crtc
)
8943 I915_STATE_WARN(crtc
->active
, "CRTC for pipe %c enabled\n",
8944 pipe_name(crtc
->pipe
));
8946 I915_STATE_WARN(I915_READ(HSW_PWR_WELL_DRIVER
), "Power well on\n");
8947 I915_STATE_WARN(I915_READ(SPLL_CTL
) & SPLL_PLL_ENABLE
, "SPLL enabled\n");
8948 I915_STATE_WARN(I915_READ(WRPLL_CTL1
) & WRPLL_PLL_ENABLE
, "WRPLL1 enabled\n");
8949 I915_STATE_WARN(I915_READ(WRPLL_CTL2
) & WRPLL_PLL_ENABLE
, "WRPLL2 enabled\n");
8950 I915_STATE_WARN(I915_READ(PCH_PP_STATUS
) & PP_ON
, "Panel power on\n");
8951 I915_STATE_WARN(I915_READ(BLC_PWM_CPU_CTL2
) & BLM_PWM_ENABLE
,
8952 "CPU PWM1 enabled\n");
8953 if (IS_HASWELL(dev
))
8954 I915_STATE_WARN(I915_READ(HSW_BLC_PWM2_CTL
) & BLM_PWM_ENABLE
,
8955 "CPU PWM2 enabled\n");
8956 I915_STATE_WARN(I915_READ(BLC_PWM_PCH_CTL1
) & BLM_PCH_PWM_ENABLE
,
8957 "PCH PWM1 enabled\n");
8958 I915_STATE_WARN(I915_READ(UTIL_PIN_CTL
) & UTIL_PIN_ENABLE
,
8959 "Utility pin enabled\n");
8960 I915_STATE_WARN(I915_READ(PCH_GTC_CTL
) & PCH_GTC_ENABLE
, "PCH GTC enabled\n");
8963 * In theory we can still leave IRQs enabled, as long as only the HPD
8964 * interrupts remain enabled. We used to check for that, but since it's
8965 * gen-specific and since we only disable LCPLL after we fully disable
8966 * the interrupts, the check below should be enough.
8968 I915_STATE_WARN(intel_irqs_enabled(dev_priv
), "IRQs enabled\n");
8971 static uint32_t hsw_read_dcomp(struct drm_i915_private
*dev_priv
)
8973 struct drm_device
*dev
= dev_priv
->dev
;
8975 if (IS_HASWELL(dev
))
8976 return I915_READ(D_COMP_HSW
);
8978 return I915_READ(D_COMP_BDW
);
8981 static void hsw_write_dcomp(struct drm_i915_private
*dev_priv
, uint32_t val
)
8983 struct drm_device
*dev
= dev_priv
->dev
;
8985 if (IS_HASWELL(dev
)) {
8986 mutex_lock(&dev_priv
->rps
.hw_lock
);
8987 if (sandybridge_pcode_write(dev_priv
, GEN6_PCODE_WRITE_D_COMP
,
8989 DRM_ERROR("Failed to write to D_COMP\n");
8990 mutex_unlock(&dev_priv
->rps
.hw_lock
);
8992 I915_WRITE(D_COMP_BDW
, val
);
8993 POSTING_READ(D_COMP_BDW
);
8998 * This function implements pieces of two sequences from BSpec:
8999 * - Sequence for display software to disable LCPLL
9000 * - Sequence for display software to allow package C8+
9001 * The steps implemented here are just the steps that actually touch the LCPLL
9002 * register. Callers should take care of disabling all the display engine
9003 * functions, doing the mode unset, fixing interrupts, etc.
9005 static void hsw_disable_lcpll(struct drm_i915_private
*dev_priv
,
9006 bool switch_to_fclk
, bool allow_power_down
)
9010 assert_can_disable_lcpll(dev_priv
);
9012 val
= I915_READ(LCPLL_CTL
);
9014 if (switch_to_fclk
) {
9015 val
|= LCPLL_CD_SOURCE_FCLK
;
9016 I915_WRITE(LCPLL_CTL
, val
);
9018 if (wait_for_atomic_us(I915_READ(LCPLL_CTL
) &
9019 LCPLL_CD_SOURCE_FCLK_DONE
, 1))
9020 DRM_ERROR("Switching to FCLK failed\n");
9022 val
= I915_READ(LCPLL_CTL
);
9025 val
|= LCPLL_PLL_DISABLE
;
9026 I915_WRITE(LCPLL_CTL
, val
);
9027 POSTING_READ(LCPLL_CTL
);
9029 if (wait_for((I915_READ(LCPLL_CTL
) & LCPLL_PLL_LOCK
) == 0, 1))
9030 DRM_ERROR("LCPLL still locked\n");
9032 val
= hsw_read_dcomp(dev_priv
);
9033 val
|= D_COMP_COMP_DISABLE
;
9034 hsw_write_dcomp(dev_priv
, val
);
9037 if (wait_for((hsw_read_dcomp(dev_priv
) & D_COMP_RCOMP_IN_PROGRESS
) == 0,
9039 DRM_ERROR("D_COMP RCOMP still in progress\n");
9041 if (allow_power_down
) {
9042 val
= I915_READ(LCPLL_CTL
);
9043 val
|= LCPLL_POWER_DOWN_ALLOW
;
9044 I915_WRITE(LCPLL_CTL
, val
);
9045 POSTING_READ(LCPLL_CTL
);
9050 * Fully restores LCPLL, disallowing power down and switching back to LCPLL
9053 static void hsw_restore_lcpll(struct drm_i915_private
*dev_priv
)
9057 val
= I915_READ(LCPLL_CTL
);
9059 if ((val
& (LCPLL_PLL_LOCK
| LCPLL_PLL_DISABLE
| LCPLL_CD_SOURCE_FCLK
|
9060 LCPLL_POWER_DOWN_ALLOW
)) == LCPLL_PLL_LOCK
)
9064 * Make sure we're not on PC8 state before disabling PC8, otherwise
9065 * we'll hang the machine. To prevent PC8 state, just enable force_wake.
9067 intel_uncore_forcewake_get(dev_priv
, FORCEWAKE_ALL
);
9069 if (val
& LCPLL_POWER_DOWN_ALLOW
) {
9070 val
&= ~LCPLL_POWER_DOWN_ALLOW
;
9071 I915_WRITE(LCPLL_CTL
, val
);
9072 POSTING_READ(LCPLL_CTL
);
9075 val
= hsw_read_dcomp(dev_priv
);
9076 val
|= D_COMP_COMP_FORCE
;
9077 val
&= ~D_COMP_COMP_DISABLE
;
9078 hsw_write_dcomp(dev_priv
, val
);
9080 val
= I915_READ(LCPLL_CTL
);
9081 val
&= ~LCPLL_PLL_DISABLE
;
9082 I915_WRITE(LCPLL_CTL
, val
);
9084 if (wait_for(I915_READ(LCPLL_CTL
) & LCPLL_PLL_LOCK
, 5))
9085 DRM_ERROR("LCPLL not locked yet\n");
9087 if (val
& LCPLL_CD_SOURCE_FCLK
) {
9088 val
= I915_READ(LCPLL_CTL
);
9089 val
&= ~LCPLL_CD_SOURCE_FCLK
;
9090 I915_WRITE(LCPLL_CTL
, val
);
9092 if (wait_for_atomic_us((I915_READ(LCPLL_CTL
) &
9093 LCPLL_CD_SOURCE_FCLK_DONE
) == 0, 1))
9094 DRM_ERROR("Switching back to LCPLL failed\n");
9097 intel_uncore_forcewake_put(dev_priv
, FORCEWAKE_ALL
);
9101 * Package states C8 and deeper are really deep PC states that can only be
9102 * reached when all the devices on the system allow it, so even if the graphics
9103 * device allows PC8+, it doesn't mean the system will actually get to these
9104 * states. Our driver only allows PC8+ when going into runtime PM.
9106 * The requirements for PC8+ are that all the outputs are disabled, the power
9107 * well is disabled and most interrupts are disabled, and these are also
9108 * requirements for runtime PM. When these conditions are met, we manually do
9109 * the other conditions: disable the interrupts, clocks and switch LCPLL refclk
9110 * to Fclk. If we're in PC8+ and we get an non-hotplug interrupt, we can hard
9113 * When we really reach PC8 or deeper states (not just when we allow it) we lose
9114 * the state of some registers, so when we come back from PC8+ we need to
9115 * restore this state. We don't get into PC8+ if we're not in RC6, so we don't
9116 * need to take care of the registers kept by RC6. Notice that this happens even
9117 * if we don't put the device in PCI D3 state (which is what currently happens
9118 * because of the runtime PM support).
9120 * For more, read "Display Sequences for Package C8" on the hardware
9123 void hsw_enable_pc8(struct drm_i915_private
*dev_priv
)
9125 struct drm_device
*dev
= dev_priv
->dev
;
9128 DRM_DEBUG_KMS("Enabling package C8+\n");
9130 if (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) {
9131 val
= I915_READ(SOUTH_DSPCLK_GATE_D
);
9132 val
&= ~PCH_LP_PARTITION_LEVEL_DISABLE
;
9133 I915_WRITE(SOUTH_DSPCLK_GATE_D
, val
);
9136 lpt_disable_clkout_dp(dev
);
9137 hsw_disable_lcpll(dev_priv
, true, true);
9140 void hsw_disable_pc8(struct drm_i915_private
*dev_priv
)
9142 struct drm_device
*dev
= dev_priv
->dev
;
9145 DRM_DEBUG_KMS("Disabling package C8+\n");
9147 hsw_restore_lcpll(dev_priv
);
9148 lpt_init_pch_refclk(dev
);
9150 if (dev_priv
->pch_id
== INTEL_PCH_LPT_LP_DEVICE_ID_TYPE
) {
9151 val
= I915_READ(SOUTH_DSPCLK_GATE_D
);
9152 val
|= PCH_LP_PARTITION_LEVEL_DISABLE
;
9153 I915_WRITE(SOUTH_DSPCLK_GATE_D
, val
);
9156 intel_prepare_ddi(dev
);
9159 static void broxton_modeset_global_resources(struct drm_atomic_state
*old_state
)
9161 struct drm_device
*dev
= old_state
->dev
;
9162 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9163 int max_pixclk
= intel_mode_max_pixclk(dev
, NULL
);
9166 /* see the comment in valleyview_modeset_global_resources */
9167 if (WARN_ON(max_pixclk
< 0))
9170 req_cdclk
= broxton_calc_cdclk(dev_priv
, max_pixclk
);
9172 if (req_cdclk
!= dev_priv
->cdclk_freq
)
9173 broxton_set_cdclk(dev
, req_cdclk
);
9176 static int haswell_crtc_compute_clock(struct intel_crtc
*crtc
,
9177 struct intel_crtc_state
*crtc_state
)
9179 if (!intel_ddi_pll_select(crtc
, crtc_state
))
9182 crtc
->lowfreq_avail
= false;
9187 static void bxt_get_ddi_pll(struct drm_i915_private
*dev_priv
,
9189 struct intel_crtc_state
*pipe_config
)
9193 pipe_config
->ddi_pll_sel
= SKL_DPLL0
;
9194 pipe_config
->shared_dpll
= DPLL_ID_SKL_DPLL1
;
9197 pipe_config
->ddi_pll_sel
= SKL_DPLL1
;
9198 pipe_config
->shared_dpll
= DPLL_ID_SKL_DPLL2
;
9201 pipe_config
->ddi_pll_sel
= SKL_DPLL2
;
9202 pipe_config
->shared_dpll
= DPLL_ID_SKL_DPLL3
;
9205 DRM_ERROR("Incorrect port type\n");
9209 static void skylake_get_ddi_pll(struct drm_i915_private
*dev_priv
,
9211 struct intel_crtc_state
*pipe_config
)
9213 u32 temp
, dpll_ctl1
;
9215 temp
= I915_READ(DPLL_CTRL2
) & DPLL_CTRL2_DDI_CLK_SEL_MASK(port
);
9216 pipe_config
->ddi_pll_sel
= temp
>> (port
* 3 + 1);
9218 switch (pipe_config
->ddi_pll_sel
) {
9221 * On SKL the eDP DPLL (DPLL0 as we don't use SSC) is not part
9222 * of the shared DPLL framework and thus needs to be read out
9225 dpll_ctl1
= I915_READ(DPLL_CTRL1
);
9226 pipe_config
->dpll_hw_state
.ctrl1
= dpll_ctl1
& 0x3f;
9229 pipe_config
->shared_dpll
= DPLL_ID_SKL_DPLL1
;
9232 pipe_config
->shared_dpll
= DPLL_ID_SKL_DPLL2
;
9235 pipe_config
->shared_dpll
= DPLL_ID_SKL_DPLL3
;
9240 static void haswell_get_ddi_pll(struct drm_i915_private
*dev_priv
,
9242 struct intel_crtc_state
*pipe_config
)
9244 pipe_config
->ddi_pll_sel
= I915_READ(PORT_CLK_SEL(port
));
9246 switch (pipe_config
->ddi_pll_sel
) {
9247 case PORT_CLK_SEL_WRPLL1
:
9248 pipe_config
->shared_dpll
= DPLL_ID_WRPLL1
;
9250 case PORT_CLK_SEL_WRPLL2
:
9251 pipe_config
->shared_dpll
= DPLL_ID_WRPLL2
;
9256 static void haswell_get_ddi_port_state(struct intel_crtc
*crtc
,
9257 struct intel_crtc_state
*pipe_config
)
9259 struct drm_device
*dev
= crtc
->base
.dev
;
9260 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9261 struct intel_shared_dpll
*pll
;
9265 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(pipe_config
->cpu_transcoder
));
9267 port
= (tmp
& TRANS_DDI_PORT_MASK
) >> TRANS_DDI_PORT_SHIFT
;
9269 if (IS_SKYLAKE(dev
))
9270 skylake_get_ddi_pll(dev_priv
, port
, pipe_config
);
9271 else if (IS_BROXTON(dev
))
9272 bxt_get_ddi_pll(dev_priv
, port
, pipe_config
);
9274 haswell_get_ddi_pll(dev_priv
, port
, pipe_config
);
9276 if (pipe_config
->shared_dpll
>= 0) {
9277 pll
= &dev_priv
->shared_dplls
[pipe_config
->shared_dpll
];
9279 WARN_ON(!pll
->get_hw_state(dev_priv
, pll
,
9280 &pipe_config
->dpll_hw_state
));
9284 * Haswell has only FDI/PCH transcoder A. It is which is connected to
9285 * DDI E. So just check whether this pipe is wired to DDI E and whether
9286 * the PCH transcoder is on.
9288 if (INTEL_INFO(dev
)->gen
< 9 &&
9289 (port
== PORT_E
) && I915_READ(LPT_TRANSCONF
) & TRANS_ENABLE
) {
9290 pipe_config
->has_pch_encoder
= true;
9292 tmp
= I915_READ(FDI_RX_CTL(PIPE_A
));
9293 pipe_config
->fdi_lanes
= ((FDI_DP_PORT_WIDTH_MASK
& tmp
) >>
9294 FDI_DP_PORT_WIDTH_SHIFT
) + 1;
9296 ironlake_get_fdi_m_n_config(crtc
, pipe_config
);
9300 static bool haswell_get_pipe_config(struct intel_crtc
*crtc
,
9301 struct intel_crtc_state
*pipe_config
)
9303 struct drm_device
*dev
= crtc
->base
.dev
;
9304 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9305 enum intel_display_power_domain pfit_domain
;
9308 if (!intel_display_power_is_enabled(dev_priv
,
9309 POWER_DOMAIN_PIPE(crtc
->pipe
)))
9312 pipe_config
->cpu_transcoder
= (enum transcoder
) crtc
->pipe
;
9313 pipe_config
->shared_dpll
= DPLL_ID_PRIVATE
;
9315 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP
));
9316 if (tmp
& TRANS_DDI_FUNC_ENABLE
) {
9317 enum pipe trans_edp_pipe
;
9318 switch (tmp
& TRANS_DDI_EDP_INPUT_MASK
) {
9320 WARN(1, "unknown pipe linked to edp transcoder\n");
9321 case TRANS_DDI_EDP_INPUT_A_ONOFF
:
9322 case TRANS_DDI_EDP_INPUT_A_ON
:
9323 trans_edp_pipe
= PIPE_A
;
9325 case TRANS_DDI_EDP_INPUT_B_ONOFF
:
9326 trans_edp_pipe
= PIPE_B
;
9328 case TRANS_DDI_EDP_INPUT_C_ONOFF
:
9329 trans_edp_pipe
= PIPE_C
;
9333 if (trans_edp_pipe
== crtc
->pipe
)
9334 pipe_config
->cpu_transcoder
= TRANSCODER_EDP
;
9337 if (!intel_display_power_is_enabled(dev_priv
,
9338 POWER_DOMAIN_TRANSCODER(pipe_config
->cpu_transcoder
)))
9341 tmp
= I915_READ(PIPECONF(pipe_config
->cpu_transcoder
));
9342 if (!(tmp
& PIPECONF_ENABLE
))
9345 haswell_get_ddi_port_state(crtc
, pipe_config
);
9347 intel_get_pipe_timings(crtc
, pipe_config
);
9349 if (INTEL_INFO(dev
)->gen
>= 9) {
9350 skl_init_scalers(dev
, crtc
, pipe_config
);
9353 pfit_domain
= POWER_DOMAIN_PIPE_PANEL_FITTER(crtc
->pipe
);
9354 if (intel_display_power_is_enabled(dev_priv
, pfit_domain
)) {
9355 if (INTEL_INFO(dev
)->gen
== 9)
9356 skylake_get_pfit_config(crtc
, pipe_config
);
9357 else if (INTEL_INFO(dev
)->gen
< 9)
9358 ironlake_get_pfit_config(crtc
, pipe_config
);
9360 MISSING_CASE(INTEL_INFO(dev
)->gen
);
9363 pipe_config
->scaler_state
.scaler_id
= -1;
9364 pipe_config
->scaler_state
.scaler_users
&= ~(1 << SKL_CRTC_INDEX
);
9367 if (IS_HASWELL(dev
))
9368 pipe_config
->ips_enabled
= hsw_crtc_supports_ips(crtc
) &&
9369 (I915_READ(IPS_CTL
) & IPS_ENABLE
);
9371 if (pipe_config
->cpu_transcoder
!= TRANSCODER_EDP
) {
9372 pipe_config
->pixel_multiplier
=
9373 I915_READ(PIPE_MULT(pipe_config
->cpu_transcoder
)) + 1;
9375 pipe_config
->pixel_multiplier
= 1;
9381 static void i845_update_cursor(struct drm_crtc
*crtc
, u32 base
)
9383 struct drm_device
*dev
= crtc
->dev
;
9384 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9385 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9386 uint32_t cntl
= 0, size
= 0;
9389 unsigned int width
= intel_crtc
->base
.cursor
->state
->crtc_w
;
9390 unsigned int height
= intel_crtc
->base
.cursor
->state
->crtc_h
;
9391 unsigned int stride
= roundup_pow_of_two(width
) * 4;
9395 WARN_ONCE(1, "Invalid cursor width/stride, width=%u, stride=%u\n",
9406 cntl
|= CURSOR_ENABLE
|
9407 CURSOR_GAMMA_ENABLE
|
9408 CURSOR_FORMAT_ARGB
|
9409 CURSOR_STRIDE(stride
);
9411 size
= (height
<< 12) | width
;
9414 if (intel_crtc
->cursor_cntl
!= 0 &&
9415 (intel_crtc
->cursor_base
!= base
||
9416 intel_crtc
->cursor_size
!= size
||
9417 intel_crtc
->cursor_cntl
!= cntl
)) {
9418 /* On these chipsets we can only modify the base/size/stride
9419 * whilst the cursor is disabled.
9421 I915_WRITE(_CURACNTR
, 0);
9422 POSTING_READ(_CURACNTR
);
9423 intel_crtc
->cursor_cntl
= 0;
9426 if (intel_crtc
->cursor_base
!= base
) {
9427 I915_WRITE(_CURABASE
, base
);
9428 intel_crtc
->cursor_base
= base
;
9431 if (intel_crtc
->cursor_size
!= size
) {
9432 I915_WRITE(CURSIZE
, size
);
9433 intel_crtc
->cursor_size
= size
;
9436 if (intel_crtc
->cursor_cntl
!= cntl
) {
9437 I915_WRITE(_CURACNTR
, cntl
);
9438 POSTING_READ(_CURACNTR
);
9439 intel_crtc
->cursor_cntl
= cntl
;
9443 static void i9xx_update_cursor(struct drm_crtc
*crtc
, u32 base
)
9445 struct drm_device
*dev
= crtc
->dev
;
9446 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9447 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9448 int pipe
= intel_crtc
->pipe
;
9453 cntl
= MCURSOR_GAMMA_ENABLE
;
9454 switch (intel_crtc
->base
.cursor
->state
->crtc_w
) {
9456 cntl
|= CURSOR_MODE_64_ARGB_AX
;
9459 cntl
|= CURSOR_MODE_128_ARGB_AX
;
9462 cntl
|= CURSOR_MODE_256_ARGB_AX
;
9465 MISSING_CASE(intel_crtc
->base
.cursor
->state
->crtc_w
);
9468 cntl
|= pipe
<< 28; /* Connect to correct pipe */
9470 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
9471 cntl
|= CURSOR_PIPE_CSC_ENABLE
;
9474 if (crtc
->cursor
->state
->rotation
== BIT(DRM_ROTATE_180
))
9475 cntl
|= CURSOR_ROTATE_180
;
9477 if (intel_crtc
->cursor_cntl
!= cntl
) {
9478 I915_WRITE(CURCNTR(pipe
), cntl
);
9479 POSTING_READ(CURCNTR(pipe
));
9480 intel_crtc
->cursor_cntl
= cntl
;
9483 /* and commit changes on next vblank */
9484 I915_WRITE(CURBASE(pipe
), base
);
9485 POSTING_READ(CURBASE(pipe
));
9487 intel_crtc
->cursor_base
= base
;
9490 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
9491 static void intel_crtc_update_cursor(struct drm_crtc
*crtc
,
9494 struct drm_device
*dev
= crtc
->dev
;
9495 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9496 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9497 int pipe
= intel_crtc
->pipe
;
9498 int x
= crtc
->cursor_x
;
9499 int y
= crtc
->cursor_y
;
9500 u32 base
= 0, pos
= 0;
9503 base
= intel_crtc
->cursor_addr
;
9505 if (x
>= intel_crtc
->config
->pipe_src_w
)
9508 if (y
>= intel_crtc
->config
->pipe_src_h
)
9512 if (x
+ intel_crtc
->base
.cursor
->state
->crtc_w
<= 0)
9515 pos
|= CURSOR_POS_SIGN
<< CURSOR_X_SHIFT
;
9518 pos
|= x
<< CURSOR_X_SHIFT
;
9521 if (y
+ intel_crtc
->base
.cursor
->state
->crtc_h
<= 0)
9524 pos
|= CURSOR_POS_SIGN
<< CURSOR_Y_SHIFT
;
9527 pos
|= y
<< CURSOR_Y_SHIFT
;
9529 if (base
== 0 && intel_crtc
->cursor_base
== 0)
9532 I915_WRITE(CURPOS(pipe
), pos
);
9534 /* ILK+ do this automagically */
9535 if (HAS_GMCH_DISPLAY(dev
) &&
9536 crtc
->cursor
->state
->rotation
== BIT(DRM_ROTATE_180
)) {
9537 base
+= (intel_crtc
->base
.cursor
->state
->crtc_h
*
9538 intel_crtc
->base
.cursor
->state
->crtc_w
- 1) * 4;
9541 if (IS_845G(dev
) || IS_I865G(dev
))
9542 i845_update_cursor(crtc
, base
);
9544 i9xx_update_cursor(crtc
, base
);
9547 static bool cursor_size_ok(struct drm_device
*dev
,
9548 uint32_t width
, uint32_t height
)
9550 if (width
== 0 || height
== 0)
9554 * 845g/865g are special in that they are only limited by
9555 * the width of their cursors, the height is arbitrary up to
9556 * the precision of the register. Everything else requires
9557 * square cursors, limited to a few power-of-two sizes.
9559 if (IS_845G(dev
) || IS_I865G(dev
)) {
9560 if ((width
& 63) != 0)
9563 if (width
> (IS_845G(dev
) ? 64 : 512))
9569 switch (width
| height
) {
9584 static void intel_crtc_gamma_set(struct drm_crtc
*crtc
, u16
*red
, u16
*green
,
9585 u16
*blue
, uint32_t start
, uint32_t size
)
9587 int end
= (start
+ size
> 256) ? 256 : start
+ size
, i
;
9588 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9590 for (i
= start
; i
< end
; i
++) {
9591 intel_crtc
->lut_r
[i
] = red
[i
] >> 8;
9592 intel_crtc
->lut_g
[i
] = green
[i
] >> 8;
9593 intel_crtc
->lut_b
[i
] = blue
[i
] >> 8;
9596 intel_crtc_load_lut(crtc
);
9599 /* VESA 640x480x72Hz mode to set on the pipe */
9600 static struct drm_display_mode load_detect_mode
= {
9601 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT
, 31500, 640, 664,
9602 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
9605 struct drm_framebuffer
*
9606 __intel_framebuffer_create(struct drm_device
*dev
,
9607 struct drm_mode_fb_cmd2
*mode_cmd
,
9608 struct drm_i915_gem_object
*obj
)
9610 struct intel_framebuffer
*intel_fb
;
9613 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
9615 drm_gem_object_unreference(&obj
->base
);
9616 return ERR_PTR(-ENOMEM
);
9619 ret
= intel_framebuffer_init(dev
, intel_fb
, mode_cmd
, obj
);
9623 return &intel_fb
->base
;
9625 drm_gem_object_unreference(&obj
->base
);
9628 return ERR_PTR(ret
);
9631 static struct drm_framebuffer
*
9632 intel_framebuffer_create(struct drm_device
*dev
,
9633 struct drm_mode_fb_cmd2
*mode_cmd
,
9634 struct drm_i915_gem_object
*obj
)
9636 struct drm_framebuffer
*fb
;
9639 ret
= i915_mutex_lock_interruptible(dev
);
9641 return ERR_PTR(ret
);
9642 fb
= __intel_framebuffer_create(dev
, mode_cmd
, obj
);
9643 mutex_unlock(&dev
->struct_mutex
);
9649 intel_framebuffer_pitch_for_width(int width
, int bpp
)
9651 u32 pitch
= DIV_ROUND_UP(width
* bpp
, 8);
9652 return ALIGN(pitch
, 64);
9656 intel_framebuffer_size_for_mode(struct drm_display_mode
*mode
, int bpp
)
9658 u32 pitch
= intel_framebuffer_pitch_for_width(mode
->hdisplay
, bpp
);
9659 return PAGE_ALIGN(pitch
* mode
->vdisplay
);
9662 static struct drm_framebuffer
*
9663 intel_framebuffer_create_for_mode(struct drm_device
*dev
,
9664 struct drm_display_mode
*mode
,
9667 struct drm_i915_gem_object
*obj
;
9668 struct drm_mode_fb_cmd2 mode_cmd
= { 0 };
9670 obj
= i915_gem_alloc_object(dev
,
9671 intel_framebuffer_size_for_mode(mode
, bpp
));
9673 return ERR_PTR(-ENOMEM
);
9675 mode_cmd
.width
= mode
->hdisplay
;
9676 mode_cmd
.height
= mode
->vdisplay
;
9677 mode_cmd
.pitches
[0] = intel_framebuffer_pitch_for_width(mode_cmd
.width
,
9679 mode_cmd
.pixel_format
= drm_mode_legacy_fb_format(bpp
, depth
);
9681 return intel_framebuffer_create(dev
, &mode_cmd
, obj
);
9684 static struct drm_framebuffer
*
9685 mode_fits_in_fbdev(struct drm_device
*dev
,
9686 struct drm_display_mode
*mode
)
9688 #ifdef CONFIG_DRM_I915_FBDEV
9689 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9690 struct drm_i915_gem_object
*obj
;
9691 struct drm_framebuffer
*fb
;
9693 if (!dev_priv
->fbdev
)
9696 if (!dev_priv
->fbdev
->fb
)
9699 obj
= dev_priv
->fbdev
->fb
->obj
;
9702 fb
= &dev_priv
->fbdev
->fb
->base
;
9703 if (fb
->pitches
[0] < intel_framebuffer_pitch_for_width(mode
->hdisplay
,
9704 fb
->bits_per_pixel
))
9707 if (obj
->base
.size
< mode
->vdisplay
* fb
->pitches
[0])
9716 static int intel_modeset_setup_plane_state(struct drm_atomic_state
*state
,
9717 struct drm_crtc
*crtc
,
9718 struct drm_display_mode
*mode
,
9719 struct drm_framebuffer
*fb
,
9722 struct drm_plane_state
*plane_state
;
9723 int hdisplay
, vdisplay
;
9726 plane_state
= drm_atomic_get_plane_state(state
, crtc
->primary
);
9727 if (IS_ERR(plane_state
))
9728 return PTR_ERR(plane_state
);
9731 drm_crtc_get_hv_timing(mode
, &hdisplay
, &vdisplay
);
9733 hdisplay
= vdisplay
= 0;
9735 ret
= drm_atomic_set_crtc_for_plane(plane_state
, fb
? crtc
: NULL
);
9738 drm_atomic_set_fb_for_plane(plane_state
, fb
);
9739 plane_state
->crtc_x
= 0;
9740 plane_state
->crtc_y
= 0;
9741 plane_state
->crtc_w
= hdisplay
;
9742 plane_state
->crtc_h
= vdisplay
;
9743 plane_state
->src_x
= x
<< 16;
9744 plane_state
->src_y
= y
<< 16;
9745 plane_state
->src_w
= hdisplay
<< 16;
9746 plane_state
->src_h
= vdisplay
<< 16;
9751 bool intel_get_load_detect_pipe(struct drm_connector
*connector
,
9752 struct drm_display_mode
*mode
,
9753 struct intel_load_detect_pipe
*old
,
9754 struct drm_modeset_acquire_ctx
*ctx
)
9756 struct intel_crtc
*intel_crtc
;
9757 struct intel_encoder
*intel_encoder
=
9758 intel_attached_encoder(connector
);
9759 struct drm_crtc
*possible_crtc
;
9760 struct drm_encoder
*encoder
= &intel_encoder
->base
;
9761 struct drm_crtc
*crtc
= NULL
;
9762 struct drm_device
*dev
= encoder
->dev
;
9763 struct drm_framebuffer
*fb
;
9764 struct drm_mode_config
*config
= &dev
->mode_config
;
9765 struct drm_atomic_state
*state
= NULL
;
9766 struct drm_connector_state
*connector_state
;
9767 struct intel_crtc_state
*crtc_state
;
9770 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
9771 connector
->base
.id
, connector
->name
,
9772 encoder
->base
.id
, encoder
->name
);
9775 ret
= drm_modeset_lock(&config
->connection_mutex
, ctx
);
9780 * Algorithm gets a little messy:
9782 * - if the connector already has an assigned crtc, use it (but make
9783 * sure it's on first)
9785 * - try to find the first unused crtc that can drive this connector,
9786 * and use that if we find one
9789 /* See if we already have a CRTC for this connector */
9790 if (encoder
->crtc
) {
9791 crtc
= encoder
->crtc
;
9793 ret
= drm_modeset_lock(&crtc
->mutex
, ctx
);
9796 ret
= drm_modeset_lock(&crtc
->primary
->mutex
, ctx
);
9800 old
->dpms_mode
= connector
->dpms
;
9801 old
->load_detect_temp
= false;
9803 /* Make sure the crtc and connector are running */
9804 if (connector
->dpms
!= DRM_MODE_DPMS_ON
)
9805 connector
->funcs
->dpms(connector
, DRM_MODE_DPMS_ON
);
9810 /* Find an unused one (if possible) */
9811 for_each_crtc(dev
, possible_crtc
) {
9813 if (!(encoder
->possible_crtcs
& (1 << i
)))
9815 if (possible_crtc
->state
->enable
)
9817 /* This can occur when applying the pipe A quirk on resume. */
9818 if (to_intel_crtc(possible_crtc
)->new_enabled
)
9821 crtc
= possible_crtc
;
9826 * If we didn't find an unused CRTC, don't use any.
9829 DRM_DEBUG_KMS("no pipe available for load-detect\n");
9833 ret
= drm_modeset_lock(&crtc
->mutex
, ctx
);
9836 ret
= drm_modeset_lock(&crtc
->primary
->mutex
, ctx
);
9839 intel_encoder
->new_crtc
= to_intel_crtc(crtc
);
9840 to_intel_connector(connector
)->new_encoder
= intel_encoder
;
9842 intel_crtc
= to_intel_crtc(crtc
);
9843 intel_crtc
->new_enabled
= true;
9844 old
->dpms_mode
= connector
->dpms
;
9845 old
->load_detect_temp
= true;
9846 old
->release_fb
= NULL
;
9848 state
= drm_atomic_state_alloc(dev
);
9852 state
->acquire_ctx
= ctx
;
9854 connector_state
= drm_atomic_get_connector_state(state
, connector
);
9855 if (IS_ERR(connector_state
)) {
9856 ret
= PTR_ERR(connector_state
);
9860 connector_state
->crtc
= crtc
;
9861 connector_state
->best_encoder
= &intel_encoder
->base
;
9863 crtc_state
= intel_atomic_get_crtc_state(state
, intel_crtc
);
9864 if (IS_ERR(crtc_state
)) {
9865 ret
= PTR_ERR(crtc_state
);
9869 crtc_state
->base
.enable
= true;
9872 mode
= &load_detect_mode
;
9874 /* We need a framebuffer large enough to accommodate all accesses
9875 * that the plane may generate whilst we perform load detection.
9876 * We can not rely on the fbcon either being present (we get called
9877 * during its initialisation to detect all boot displays, or it may
9878 * not even exist) or that it is large enough to satisfy the
9881 fb
= mode_fits_in_fbdev(dev
, mode
);
9883 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
9884 fb
= intel_framebuffer_create_for_mode(dev
, mode
, 24, 32);
9885 old
->release_fb
= fb
;
9887 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
9889 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
9893 ret
= intel_modeset_setup_plane_state(state
, crtc
, mode
, fb
, 0, 0);
9897 drm_mode_copy(&crtc_state
->base
.mode
, mode
);
9899 if (intel_set_mode(crtc
, state
)) {
9900 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
9901 if (old
->release_fb
)
9902 old
->release_fb
->funcs
->destroy(old
->release_fb
);
9905 crtc
->primary
->crtc
= crtc
;
9907 /* let the connector get through one full cycle before testing */
9908 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
9912 intel_crtc
->new_enabled
= crtc
->state
->enable
;
9914 drm_atomic_state_free(state
);
9917 if (ret
== -EDEADLK
) {
9918 drm_modeset_backoff(ctx
);
9925 void intel_release_load_detect_pipe(struct drm_connector
*connector
,
9926 struct intel_load_detect_pipe
*old
,
9927 struct drm_modeset_acquire_ctx
*ctx
)
9929 struct drm_device
*dev
= connector
->dev
;
9930 struct intel_encoder
*intel_encoder
=
9931 intel_attached_encoder(connector
);
9932 struct drm_encoder
*encoder
= &intel_encoder
->base
;
9933 struct drm_crtc
*crtc
= encoder
->crtc
;
9934 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
9935 struct drm_atomic_state
*state
;
9936 struct drm_connector_state
*connector_state
;
9937 struct intel_crtc_state
*crtc_state
;
9940 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
9941 connector
->base
.id
, connector
->name
,
9942 encoder
->base
.id
, encoder
->name
);
9944 if (old
->load_detect_temp
) {
9945 state
= drm_atomic_state_alloc(dev
);
9949 state
->acquire_ctx
= ctx
;
9951 connector_state
= drm_atomic_get_connector_state(state
, connector
);
9952 if (IS_ERR(connector_state
))
9955 crtc_state
= intel_atomic_get_crtc_state(state
, intel_crtc
);
9956 if (IS_ERR(crtc_state
))
9959 to_intel_connector(connector
)->new_encoder
= NULL
;
9960 intel_encoder
->new_crtc
= NULL
;
9961 intel_crtc
->new_enabled
= false;
9963 connector_state
->best_encoder
= NULL
;
9964 connector_state
->crtc
= NULL
;
9966 crtc_state
->base
.enable
= false;
9968 ret
= intel_modeset_setup_plane_state(state
, crtc
, NULL
, NULL
,
9973 ret
= intel_set_mode(crtc
, state
);
9977 if (old
->release_fb
) {
9978 drm_framebuffer_unregister_private(old
->release_fb
);
9979 drm_framebuffer_unreference(old
->release_fb
);
9985 /* Switch crtc and encoder back off if necessary */
9986 if (old
->dpms_mode
!= DRM_MODE_DPMS_ON
)
9987 connector
->funcs
->dpms(connector
, old
->dpms_mode
);
9991 DRM_DEBUG_KMS("Couldn't release load detect pipe.\n");
9992 drm_atomic_state_free(state
);
9995 static int i9xx_pll_refclk(struct drm_device
*dev
,
9996 const struct intel_crtc_state
*pipe_config
)
9998 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9999 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
10001 if ((dpll
& PLL_REF_INPUT_MASK
) == PLLB_REF_INPUT_SPREADSPECTRUMIN
)
10002 return dev_priv
->vbt
.lvds_ssc_freq
;
10003 else if (HAS_PCH_SPLIT(dev
))
10005 else if (!IS_GEN2(dev
))
10011 /* Returns the clock of the currently programmed mode of the given pipe. */
10012 static void i9xx_crtc_clock_get(struct intel_crtc
*crtc
,
10013 struct intel_crtc_state
*pipe_config
)
10015 struct drm_device
*dev
= crtc
->base
.dev
;
10016 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10017 int pipe
= pipe_config
->cpu_transcoder
;
10018 u32 dpll
= pipe_config
->dpll_hw_state
.dpll
;
10020 intel_clock_t clock
;
10021 int refclk
= i9xx_pll_refclk(dev
, pipe_config
);
10023 if ((dpll
& DISPLAY_RATE_SELECT_FPA1
) == 0)
10024 fp
= pipe_config
->dpll_hw_state
.fp0
;
10026 fp
= pipe_config
->dpll_hw_state
.fp1
;
10028 clock
.m1
= (fp
& FP_M1_DIV_MASK
) >> FP_M1_DIV_SHIFT
;
10029 if (IS_PINEVIEW(dev
)) {
10030 clock
.n
= ffs((fp
& FP_N_PINEVIEW_DIV_MASK
) >> FP_N_DIV_SHIFT
) - 1;
10031 clock
.m2
= (fp
& FP_M2_PINEVIEW_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
10033 clock
.n
= (fp
& FP_N_DIV_MASK
) >> FP_N_DIV_SHIFT
;
10034 clock
.m2
= (fp
& FP_M2_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
10037 if (!IS_GEN2(dev
)) {
10038 if (IS_PINEVIEW(dev
))
10039 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW
) >>
10040 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
);
10042 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK
) >>
10043 DPLL_FPA01_P1_POST_DIV_SHIFT
);
10045 switch (dpll
& DPLL_MODE_MASK
) {
10046 case DPLLB_MODE_DAC_SERIAL
:
10047 clock
.p2
= dpll
& DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
?
10050 case DPLLB_MODE_LVDS
:
10051 clock
.p2
= dpll
& DPLLB_LVDS_P2_CLOCK_DIV_7
?
10055 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
10056 "mode\n", (int)(dpll
& DPLL_MODE_MASK
));
10060 if (IS_PINEVIEW(dev
))
10061 pineview_clock(refclk
, &clock
);
10063 i9xx_clock(refclk
, &clock
);
10065 u32 lvds
= IS_I830(dev
) ? 0 : I915_READ(LVDS
);
10066 bool is_lvds
= (pipe
== 1) && (lvds
& LVDS_PORT_EN
);
10069 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS
) >>
10070 DPLL_FPA01_P1_POST_DIV_SHIFT
);
10072 if (lvds
& LVDS_CLKB_POWER_UP
)
10077 if (dpll
& PLL_P1_DIVIDE_BY_TWO
)
10080 clock
.p1
= ((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830
) >>
10081 DPLL_FPA01_P1_POST_DIV_SHIFT
) + 2;
10083 if (dpll
& PLL_P2_DIVIDE_BY_4
)
10089 i9xx_clock(refclk
, &clock
);
10093 * This value includes pixel_multiplier. We will use
10094 * port_clock to compute adjusted_mode.crtc_clock in the
10095 * encoder's get_config() function.
10097 pipe_config
->port_clock
= clock
.dot
;
10100 int intel_dotclock_calculate(int link_freq
,
10101 const struct intel_link_m_n
*m_n
)
10104 * The calculation for the data clock is:
10105 * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp
10106 * But we want to avoid losing precison if possible, so:
10107 * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp))
10109 * and the link clock is simpler:
10110 * link_clock = (m * link_clock) / n
10116 return div_u64((u64
)m_n
->link_m
* link_freq
, m_n
->link_n
);
10119 static void ironlake_pch_clock_get(struct intel_crtc
*crtc
,
10120 struct intel_crtc_state
*pipe_config
)
10122 struct drm_device
*dev
= crtc
->base
.dev
;
10124 /* read out port_clock from the DPLL */
10125 i9xx_crtc_clock_get(crtc
, pipe_config
);
10128 * This value does not include pixel_multiplier.
10129 * We will check that port_clock and adjusted_mode.crtc_clock
10130 * agree once we know their relationship in the encoder's
10131 * get_config() function.
10133 pipe_config
->base
.adjusted_mode
.crtc_clock
=
10134 intel_dotclock_calculate(intel_fdi_link_freq(dev
) * 10000,
10135 &pipe_config
->fdi_m_n
);
10138 /** Returns the currently programmed mode of the given pipe. */
10139 struct drm_display_mode
*intel_crtc_mode_get(struct drm_device
*dev
,
10140 struct drm_crtc
*crtc
)
10142 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10143 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10144 enum transcoder cpu_transcoder
= intel_crtc
->config
->cpu_transcoder
;
10145 struct drm_display_mode
*mode
;
10146 struct intel_crtc_state pipe_config
;
10147 int htot
= I915_READ(HTOTAL(cpu_transcoder
));
10148 int hsync
= I915_READ(HSYNC(cpu_transcoder
));
10149 int vtot
= I915_READ(VTOTAL(cpu_transcoder
));
10150 int vsync
= I915_READ(VSYNC(cpu_transcoder
));
10151 enum pipe pipe
= intel_crtc
->pipe
;
10153 mode
= kzalloc(sizeof(*mode
), GFP_KERNEL
);
10158 * Construct a pipe_config sufficient for getting the clock info
10159 * back out of crtc_clock_get.
10161 * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need
10162 * to use a real value here instead.
10164 pipe_config
.cpu_transcoder
= (enum transcoder
) pipe
;
10165 pipe_config
.pixel_multiplier
= 1;
10166 pipe_config
.dpll_hw_state
.dpll
= I915_READ(DPLL(pipe
));
10167 pipe_config
.dpll_hw_state
.fp0
= I915_READ(FP0(pipe
));
10168 pipe_config
.dpll_hw_state
.fp1
= I915_READ(FP1(pipe
));
10169 i9xx_crtc_clock_get(intel_crtc
, &pipe_config
);
10171 mode
->clock
= pipe_config
.port_clock
/ pipe_config
.pixel_multiplier
;
10172 mode
->hdisplay
= (htot
& 0xffff) + 1;
10173 mode
->htotal
= ((htot
& 0xffff0000) >> 16) + 1;
10174 mode
->hsync_start
= (hsync
& 0xffff) + 1;
10175 mode
->hsync_end
= ((hsync
& 0xffff0000) >> 16) + 1;
10176 mode
->vdisplay
= (vtot
& 0xffff) + 1;
10177 mode
->vtotal
= ((vtot
& 0xffff0000) >> 16) + 1;
10178 mode
->vsync_start
= (vsync
& 0xffff) + 1;
10179 mode
->vsync_end
= ((vsync
& 0xffff0000) >> 16) + 1;
10181 drm_mode_set_name(mode
);
10186 static void intel_decrease_pllclock(struct drm_crtc
*crtc
)
10188 struct drm_device
*dev
= crtc
->dev
;
10189 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10190 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10192 if (!HAS_GMCH_DISPLAY(dev
))
10195 if (!dev_priv
->lvds_downclock_avail
)
10199 * Since this is called by a timer, we should never get here in
10202 if (!HAS_PIPE_CXSR(dev
) && intel_crtc
->lowfreq_avail
) {
10203 int pipe
= intel_crtc
->pipe
;
10204 int dpll_reg
= DPLL(pipe
);
10207 DRM_DEBUG_DRIVER("downclocking LVDS\n");
10209 assert_panel_unlocked(dev_priv
, pipe
);
10211 dpll
= I915_READ(dpll_reg
);
10212 dpll
|= DISPLAY_RATE_SELECT_FPA1
;
10213 I915_WRITE(dpll_reg
, dpll
);
10214 intel_wait_for_vblank(dev
, pipe
);
10215 dpll
= I915_READ(dpll_reg
);
10216 if (!(dpll
& DISPLAY_RATE_SELECT_FPA1
))
10217 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
10222 void intel_mark_busy(struct drm_device
*dev
)
10224 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10226 if (dev_priv
->mm
.busy
)
10229 intel_runtime_pm_get(dev_priv
);
10230 i915_update_gfx_val(dev_priv
);
10231 if (INTEL_INFO(dev
)->gen
>= 6)
10232 gen6_rps_busy(dev_priv
);
10233 dev_priv
->mm
.busy
= true;
10236 void intel_mark_idle(struct drm_device
*dev
)
10238 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10239 struct drm_crtc
*crtc
;
10241 if (!dev_priv
->mm
.busy
)
10244 dev_priv
->mm
.busy
= false;
10246 for_each_crtc(dev
, crtc
) {
10247 if (!crtc
->primary
->fb
)
10250 intel_decrease_pllclock(crtc
);
10253 if (INTEL_INFO(dev
)->gen
>= 6)
10254 gen6_rps_idle(dev
->dev_private
);
10256 intel_runtime_pm_put(dev_priv
);
10259 static void intel_crtc_set_state(struct intel_crtc
*crtc
,
10260 struct intel_crtc_state
*crtc_state
)
10262 kfree(crtc
->config
);
10263 crtc
->config
= crtc_state
;
10264 crtc
->base
.state
= &crtc_state
->base
;
10267 static void intel_crtc_destroy(struct drm_crtc
*crtc
)
10269 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10270 struct drm_device
*dev
= crtc
->dev
;
10271 struct intel_unpin_work
*work
;
10273 spin_lock_irq(&dev
->event_lock
);
10274 work
= intel_crtc
->unpin_work
;
10275 intel_crtc
->unpin_work
= NULL
;
10276 spin_unlock_irq(&dev
->event_lock
);
10279 cancel_work_sync(&work
->work
);
10283 intel_crtc_set_state(intel_crtc
, NULL
);
10284 drm_crtc_cleanup(crtc
);
10289 static void intel_unpin_work_fn(struct work_struct
*__work
)
10291 struct intel_unpin_work
*work
=
10292 container_of(__work
, struct intel_unpin_work
, work
);
10293 struct drm_device
*dev
= work
->crtc
->dev
;
10294 enum pipe pipe
= to_intel_crtc(work
->crtc
)->pipe
;
10296 mutex_lock(&dev
->struct_mutex
);
10297 intel_unpin_fb_obj(work
->old_fb
, work
->crtc
->primary
->state
);
10298 drm_gem_object_unreference(&work
->pending_flip_obj
->base
);
10300 intel_fbc_update(dev
);
10302 if (work
->flip_queued_req
)
10303 i915_gem_request_assign(&work
->flip_queued_req
, NULL
);
10304 mutex_unlock(&dev
->struct_mutex
);
10306 intel_frontbuffer_flip_complete(dev
, INTEL_FRONTBUFFER_PRIMARY(pipe
));
10307 drm_framebuffer_unreference(work
->old_fb
);
10309 BUG_ON(atomic_read(&to_intel_crtc(work
->crtc
)->unpin_work_count
) == 0);
10310 atomic_dec(&to_intel_crtc(work
->crtc
)->unpin_work_count
);
10315 static void do_intel_finish_page_flip(struct drm_device
*dev
,
10316 struct drm_crtc
*crtc
)
10318 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10319 struct intel_unpin_work
*work
;
10320 unsigned long flags
;
10322 /* Ignore early vblank irqs */
10323 if (intel_crtc
== NULL
)
10327 * This is called both by irq handlers and the reset code (to complete
10328 * lost pageflips) so needs the full irqsave spinlocks.
10330 spin_lock_irqsave(&dev
->event_lock
, flags
);
10331 work
= intel_crtc
->unpin_work
;
10333 /* Ensure we don't miss a work->pending update ... */
10336 if (work
== NULL
|| atomic_read(&work
->pending
) < INTEL_FLIP_COMPLETE
) {
10337 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
10341 page_flip_completed(intel_crtc
);
10343 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
10346 void intel_finish_page_flip(struct drm_device
*dev
, int pipe
)
10348 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10349 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
10351 do_intel_finish_page_flip(dev
, crtc
);
10354 void intel_finish_page_flip_plane(struct drm_device
*dev
, int plane
)
10356 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10357 struct drm_crtc
*crtc
= dev_priv
->plane_to_crtc_mapping
[plane
];
10359 do_intel_finish_page_flip(dev
, crtc
);
10362 /* Is 'a' after or equal to 'b'? */
10363 static bool g4x_flip_count_after_eq(u32 a
, u32 b
)
10365 return !((a
- b
) & 0x80000000);
10368 static bool page_flip_finished(struct intel_crtc
*crtc
)
10370 struct drm_device
*dev
= crtc
->base
.dev
;
10371 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10373 if (i915_reset_in_progress(&dev_priv
->gpu_error
) ||
10374 crtc
->reset_counter
!= atomic_read(&dev_priv
->gpu_error
.reset_counter
))
10378 * The relevant registers doen't exist on pre-ctg.
10379 * As the flip done interrupt doesn't trigger for mmio
10380 * flips on gmch platforms, a flip count check isn't
10381 * really needed there. But since ctg has the registers,
10382 * include it in the check anyway.
10384 if (INTEL_INFO(dev
)->gen
< 5 && !IS_G4X(dev
))
10388 * A DSPSURFLIVE check isn't enough in case the mmio and CS flips
10389 * used the same base address. In that case the mmio flip might
10390 * have completed, but the CS hasn't even executed the flip yet.
10392 * A flip count check isn't enough as the CS might have updated
10393 * the base address just after start of vblank, but before we
10394 * managed to process the interrupt. This means we'd complete the
10395 * CS flip too soon.
10397 * Combining both checks should get us a good enough result. It may
10398 * still happen that the CS flip has been executed, but has not
10399 * yet actually completed. But in case the base address is the same
10400 * anyway, we don't really care.
10402 return (I915_READ(DSPSURFLIVE(crtc
->plane
)) & ~0xfff) ==
10403 crtc
->unpin_work
->gtt_offset
&&
10404 g4x_flip_count_after_eq(I915_READ(PIPE_FLIPCOUNT_GM45(crtc
->pipe
)),
10405 crtc
->unpin_work
->flip_count
);
10408 void intel_prepare_page_flip(struct drm_device
*dev
, int plane
)
10410 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10411 struct intel_crtc
*intel_crtc
=
10412 to_intel_crtc(dev_priv
->plane_to_crtc_mapping
[plane
]);
10413 unsigned long flags
;
10417 * This is called both by irq handlers and the reset code (to complete
10418 * lost pageflips) so needs the full irqsave spinlocks.
10420 * NB: An MMIO update of the plane base pointer will also
10421 * generate a page-flip completion irq, i.e. every modeset
10422 * is also accompanied by a spurious intel_prepare_page_flip().
10424 spin_lock_irqsave(&dev
->event_lock
, flags
);
10425 if (intel_crtc
->unpin_work
&& page_flip_finished(intel_crtc
))
10426 atomic_inc_not_zero(&intel_crtc
->unpin_work
->pending
);
10427 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
10430 static inline void intel_mark_page_flip_active(struct intel_crtc
*intel_crtc
)
10432 /* Ensure that the work item is consistent when activating it ... */
10434 atomic_set(&intel_crtc
->unpin_work
->pending
, INTEL_FLIP_PENDING
);
10435 /* and that it is marked active as soon as the irq could fire. */
10439 static int intel_gen2_queue_flip(struct drm_device
*dev
,
10440 struct drm_crtc
*crtc
,
10441 struct drm_framebuffer
*fb
,
10442 struct drm_i915_gem_object
*obj
,
10443 struct intel_engine_cs
*ring
,
10446 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10450 ret
= intel_ring_begin(ring
, 6);
10454 /* Can't queue multiple flips, so wait for the previous
10455 * one to finish before executing the next.
10457 if (intel_crtc
->plane
)
10458 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
10460 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
10461 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
10462 intel_ring_emit(ring
, MI_NOOP
);
10463 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
10464 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
10465 intel_ring_emit(ring
, fb
->pitches
[0]);
10466 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
10467 intel_ring_emit(ring
, 0); /* aux display base address, unused */
10469 intel_mark_page_flip_active(intel_crtc
);
10470 __intel_ring_advance(ring
);
10474 static int intel_gen3_queue_flip(struct drm_device
*dev
,
10475 struct drm_crtc
*crtc
,
10476 struct drm_framebuffer
*fb
,
10477 struct drm_i915_gem_object
*obj
,
10478 struct intel_engine_cs
*ring
,
10481 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10485 ret
= intel_ring_begin(ring
, 6);
10489 if (intel_crtc
->plane
)
10490 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
10492 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
10493 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
10494 intel_ring_emit(ring
, MI_NOOP
);
10495 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
|
10496 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
10497 intel_ring_emit(ring
, fb
->pitches
[0]);
10498 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
10499 intel_ring_emit(ring
, MI_NOOP
);
10501 intel_mark_page_flip_active(intel_crtc
);
10502 __intel_ring_advance(ring
);
10506 static int intel_gen4_queue_flip(struct drm_device
*dev
,
10507 struct drm_crtc
*crtc
,
10508 struct drm_framebuffer
*fb
,
10509 struct drm_i915_gem_object
*obj
,
10510 struct intel_engine_cs
*ring
,
10513 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10514 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10515 uint32_t pf
, pipesrc
;
10518 ret
= intel_ring_begin(ring
, 4);
10522 /* i965+ uses the linear or tiled offsets from the
10523 * Display Registers (which do not change across a page-flip)
10524 * so we need only reprogram the base address.
10526 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
10527 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
10528 intel_ring_emit(ring
, fb
->pitches
[0]);
10529 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
|
10532 /* XXX Enabling the panel-fitter across page-flip is so far
10533 * untested on non-native modes, so ignore it for now.
10534 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
10537 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
10538 intel_ring_emit(ring
, pf
| pipesrc
);
10540 intel_mark_page_flip_active(intel_crtc
);
10541 __intel_ring_advance(ring
);
10545 static int intel_gen6_queue_flip(struct drm_device
*dev
,
10546 struct drm_crtc
*crtc
,
10547 struct drm_framebuffer
*fb
,
10548 struct drm_i915_gem_object
*obj
,
10549 struct intel_engine_cs
*ring
,
10552 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10553 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10554 uint32_t pf
, pipesrc
;
10557 ret
= intel_ring_begin(ring
, 4);
10561 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
10562 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
10563 intel_ring_emit(ring
, fb
->pitches
[0] | obj
->tiling_mode
);
10564 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
10566 /* Contrary to the suggestions in the documentation,
10567 * "Enable Panel Fitter" does not seem to be required when page
10568 * flipping with a non-native mode, and worse causes a normal
10570 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
10573 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
10574 intel_ring_emit(ring
, pf
| pipesrc
);
10576 intel_mark_page_flip_active(intel_crtc
);
10577 __intel_ring_advance(ring
);
10581 static int intel_gen7_queue_flip(struct drm_device
*dev
,
10582 struct drm_crtc
*crtc
,
10583 struct drm_framebuffer
*fb
,
10584 struct drm_i915_gem_object
*obj
,
10585 struct intel_engine_cs
*ring
,
10588 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10589 uint32_t plane_bit
= 0;
10592 switch (intel_crtc
->plane
) {
10594 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_A
;
10597 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_B
;
10600 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_C
;
10603 WARN_ONCE(1, "unknown plane in flip command\n");
10608 if (ring
->id
== RCS
) {
10611 * On Gen 8, SRM is now taking an extra dword to accommodate
10612 * 48bits addresses, and we need a NOOP for the batch size to
10620 * BSpec MI_DISPLAY_FLIP for IVB:
10621 * "The full packet must be contained within the same cache line."
10623 * Currently the LRI+SRM+MI_DISPLAY_FLIP all fit within the same
10624 * cacheline, if we ever start emitting more commands before
10625 * the MI_DISPLAY_FLIP we may need to first emit everything else,
10626 * then do the cacheline alignment, and finally emit the
10629 ret
= intel_ring_cacheline_align(ring
);
10633 ret
= intel_ring_begin(ring
, len
);
10637 /* Unmask the flip-done completion message. Note that the bspec says that
10638 * we should do this for both the BCS and RCS, and that we must not unmask
10639 * more than one flip event at any time (or ensure that one flip message
10640 * can be sent by waiting for flip-done prior to queueing new flips).
10641 * Experimentation says that BCS works despite DERRMR masking all
10642 * flip-done completion events and that unmasking all planes at once
10643 * for the RCS also doesn't appear to drop events. Setting the DERRMR
10644 * to zero does lead to lockups within MI_DISPLAY_FLIP.
10646 if (ring
->id
== RCS
) {
10647 intel_ring_emit(ring
, MI_LOAD_REGISTER_IMM(1));
10648 intel_ring_emit(ring
, DERRMR
);
10649 intel_ring_emit(ring
, ~(DERRMR_PIPEA_PRI_FLIP_DONE
|
10650 DERRMR_PIPEB_PRI_FLIP_DONE
|
10651 DERRMR_PIPEC_PRI_FLIP_DONE
));
10653 intel_ring_emit(ring
, MI_STORE_REGISTER_MEM_GEN8(1) |
10654 MI_SRM_LRM_GLOBAL_GTT
);
10656 intel_ring_emit(ring
, MI_STORE_REGISTER_MEM(1) |
10657 MI_SRM_LRM_GLOBAL_GTT
);
10658 intel_ring_emit(ring
, DERRMR
);
10659 intel_ring_emit(ring
, ring
->scratch
.gtt_offset
+ 256);
10660 if (IS_GEN8(dev
)) {
10661 intel_ring_emit(ring
, 0);
10662 intel_ring_emit(ring
, MI_NOOP
);
10666 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
| plane_bit
);
10667 intel_ring_emit(ring
, (fb
->pitches
[0] | obj
->tiling_mode
));
10668 intel_ring_emit(ring
, intel_crtc
->unpin_work
->gtt_offset
);
10669 intel_ring_emit(ring
, (MI_NOOP
));
10671 intel_mark_page_flip_active(intel_crtc
);
10672 __intel_ring_advance(ring
);
10676 static bool use_mmio_flip(struct intel_engine_cs
*ring
,
10677 struct drm_i915_gem_object
*obj
)
10680 * This is not being used for older platforms, because
10681 * non-availability of flip done interrupt forces us to use
10682 * CS flips. Older platforms derive flip done using some clever
10683 * tricks involving the flip_pending status bits and vblank irqs.
10684 * So using MMIO flips there would disrupt this mechanism.
10690 if (INTEL_INFO(ring
->dev
)->gen
< 5)
10693 if (i915
.use_mmio_flip
< 0)
10695 else if (i915
.use_mmio_flip
> 0)
10697 else if (i915
.enable_execlists
)
10700 return ring
!= i915_gem_request_get_ring(obj
->last_read_req
);
10703 static void skl_do_mmio_flip(struct intel_crtc
*intel_crtc
)
10705 struct drm_device
*dev
= intel_crtc
->base
.dev
;
10706 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10707 struct drm_framebuffer
*fb
= intel_crtc
->base
.primary
->fb
;
10708 const enum pipe pipe
= intel_crtc
->pipe
;
10711 ctl
= I915_READ(PLANE_CTL(pipe
, 0));
10712 ctl
&= ~PLANE_CTL_TILED_MASK
;
10713 switch (fb
->modifier
[0]) {
10714 case DRM_FORMAT_MOD_NONE
:
10716 case I915_FORMAT_MOD_X_TILED
:
10717 ctl
|= PLANE_CTL_TILED_X
;
10719 case I915_FORMAT_MOD_Y_TILED
:
10720 ctl
|= PLANE_CTL_TILED_Y
;
10722 case I915_FORMAT_MOD_Yf_TILED
:
10723 ctl
|= PLANE_CTL_TILED_YF
;
10726 MISSING_CASE(fb
->modifier
[0]);
10730 * The stride is either expressed as a multiple of 64 bytes chunks for
10731 * linear buffers or in number of tiles for tiled buffers.
10733 stride
= fb
->pitches
[0] /
10734 intel_fb_stride_alignment(dev
, fb
->modifier
[0],
10738 * Both PLANE_CTL and PLANE_STRIDE are not updated on vblank but on
10739 * PLANE_SURF updates, the update is then guaranteed to be atomic.
10741 I915_WRITE(PLANE_CTL(pipe
, 0), ctl
);
10742 I915_WRITE(PLANE_STRIDE(pipe
, 0), stride
);
10744 I915_WRITE(PLANE_SURF(pipe
, 0), intel_crtc
->unpin_work
->gtt_offset
);
10745 POSTING_READ(PLANE_SURF(pipe
, 0));
10748 static void ilk_do_mmio_flip(struct intel_crtc
*intel_crtc
)
10750 struct drm_device
*dev
= intel_crtc
->base
.dev
;
10751 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10752 struct intel_framebuffer
*intel_fb
=
10753 to_intel_framebuffer(intel_crtc
->base
.primary
->fb
);
10754 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
10758 reg
= DSPCNTR(intel_crtc
->plane
);
10759 dspcntr
= I915_READ(reg
);
10761 if (obj
->tiling_mode
!= I915_TILING_NONE
)
10762 dspcntr
|= DISPPLANE_TILED
;
10764 dspcntr
&= ~DISPPLANE_TILED
;
10766 I915_WRITE(reg
, dspcntr
);
10768 I915_WRITE(DSPSURF(intel_crtc
->plane
),
10769 intel_crtc
->unpin_work
->gtt_offset
);
10770 POSTING_READ(DSPSURF(intel_crtc
->plane
));
10775 * XXX: This is the temporary way to update the plane registers until we get
10776 * around to using the usual plane update functions for MMIO flips
10778 static void intel_do_mmio_flip(struct intel_crtc
*intel_crtc
)
10780 struct drm_device
*dev
= intel_crtc
->base
.dev
;
10781 bool atomic_update
;
10782 u32 start_vbl_count
;
10784 intel_mark_page_flip_active(intel_crtc
);
10786 atomic_update
= intel_pipe_update_start(intel_crtc
, &start_vbl_count
);
10788 if (INTEL_INFO(dev
)->gen
>= 9)
10789 skl_do_mmio_flip(intel_crtc
);
10791 /* use_mmio_flip() retricts MMIO flips to ilk+ */
10792 ilk_do_mmio_flip(intel_crtc
);
10795 intel_pipe_update_end(intel_crtc
, start_vbl_count
);
10798 static void intel_mmio_flip_work_func(struct work_struct
*work
)
10800 struct intel_crtc
*crtc
=
10801 container_of(work
, struct intel_crtc
, mmio_flip
.work
);
10802 struct intel_mmio_flip
*mmio_flip
;
10804 mmio_flip
= &crtc
->mmio_flip
;
10805 if (mmio_flip
->req
)
10806 WARN_ON(__i915_wait_request(mmio_flip
->req
,
10807 crtc
->reset_counter
,
10808 false, NULL
, NULL
) != 0);
10810 intel_do_mmio_flip(crtc
);
10811 if (mmio_flip
->req
) {
10812 mutex_lock(&crtc
->base
.dev
->struct_mutex
);
10813 i915_gem_request_assign(&mmio_flip
->req
, NULL
);
10814 mutex_unlock(&crtc
->base
.dev
->struct_mutex
);
10818 static int intel_queue_mmio_flip(struct drm_device
*dev
,
10819 struct drm_crtc
*crtc
,
10820 struct drm_framebuffer
*fb
,
10821 struct drm_i915_gem_object
*obj
,
10822 struct intel_engine_cs
*ring
,
10825 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10827 i915_gem_request_assign(&intel_crtc
->mmio_flip
.req
,
10828 obj
->last_write_req
);
10830 schedule_work(&intel_crtc
->mmio_flip
.work
);
10835 static int intel_default_queue_flip(struct drm_device
*dev
,
10836 struct drm_crtc
*crtc
,
10837 struct drm_framebuffer
*fb
,
10838 struct drm_i915_gem_object
*obj
,
10839 struct intel_engine_cs
*ring
,
10845 static bool __intel_pageflip_stall_check(struct drm_device
*dev
,
10846 struct drm_crtc
*crtc
)
10848 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10849 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10850 struct intel_unpin_work
*work
= intel_crtc
->unpin_work
;
10853 if (atomic_read(&work
->pending
) >= INTEL_FLIP_COMPLETE
)
10856 if (!work
->enable_stall_check
)
10859 if (work
->flip_ready_vblank
== 0) {
10860 if (work
->flip_queued_req
&&
10861 !i915_gem_request_completed(work
->flip_queued_req
, true))
10864 work
->flip_ready_vblank
= drm_crtc_vblank_count(crtc
);
10867 if (drm_crtc_vblank_count(crtc
) - work
->flip_ready_vblank
< 3)
10870 /* Potential stall - if we see that the flip has happened,
10871 * assume a missed interrupt. */
10872 if (INTEL_INFO(dev
)->gen
>= 4)
10873 addr
= I915_HI_DISPBASE(I915_READ(DSPSURF(intel_crtc
->plane
)));
10875 addr
= I915_READ(DSPADDR(intel_crtc
->plane
));
10877 /* There is a potential issue here with a false positive after a flip
10878 * to the same address. We could address this by checking for a
10879 * non-incrementing frame counter.
10881 return addr
== work
->gtt_offset
;
10884 void intel_check_page_flip(struct drm_device
*dev
, int pipe
)
10886 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10887 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
10888 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10889 struct intel_unpin_work
*work
;
10891 WARN_ON(!in_interrupt());
10896 spin_lock(&dev
->event_lock
);
10897 work
= intel_crtc
->unpin_work
;
10898 if (work
!= NULL
&& __intel_pageflip_stall_check(dev
, crtc
)) {
10899 WARN_ONCE(1, "Kicking stuck page flip: queued at %d, now %d\n",
10900 work
->flip_queued_vblank
, drm_vblank_count(dev
, pipe
));
10901 page_flip_completed(intel_crtc
);
10904 if (work
!= NULL
&&
10905 drm_vblank_count(dev
, pipe
) - work
->flip_queued_vblank
> 1)
10906 intel_queue_rps_boost_for_request(dev
, work
->flip_queued_req
);
10907 spin_unlock(&dev
->event_lock
);
10910 static int intel_crtc_page_flip(struct drm_crtc
*crtc
,
10911 struct drm_framebuffer
*fb
,
10912 struct drm_pending_vblank_event
*event
,
10913 uint32_t page_flip_flags
)
10915 struct drm_device
*dev
= crtc
->dev
;
10916 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
10917 struct drm_framebuffer
*old_fb
= crtc
->primary
->fb
;
10918 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
10919 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
10920 struct drm_plane
*primary
= crtc
->primary
;
10921 enum pipe pipe
= intel_crtc
->pipe
;
10922 struct intel_unpin_work
*work
;
10923 struct intel_engine_cs
*ring
;
10928 * drm_mode_page_flip_ioctl() should already catch this, but double
10929 * check to be safe. In the future we may enable pageflipping from
10930 * a disabled primary plane.
10932 if (WARN_ON(intel_fb_obj(old_fb
) == NULL
))
10935 /* Can't change pixel format via MI display flips. */
10936 if (fb
->pixel_format
!= crtc
->primary
->fb
->pixel_format
)
10940 * TILEOFF/LINOFF registers can't be changed via MI display flips.
10941 * Note that pitch changes could also affect these register.
10943 if (INTEL_INFO(dev
)->gen
> 3 &&
10944 (fb
->offsets
[0] != crtc
->primary
->fb
->offsets
[0] ||
10945 fb
->pitches
[0] != crtc
->primary
->fb
->pitches
[0]))
10948 if (i915_terminally_wedged(&dev_priv
->gpu_error
))
10951 work
= kzalloc(sizeof(*work
), GFP_KERNEL
);
10955 work
->event
= event
;
10957 work
->old_fb
= old_fb
;
10958 INIT_WORK(&work
->work
, intel_unpin_work_fn
);
10960 ret
= drm_crtc_vblank_get(crtc
);
10964 /* We borrow the event spin lock for protecting unpin_work */
10965 spin_lock_irq(&dev
->event_lock
);
10966 if (intel_crtc
->unpin_work
) {
10967 /* Before declaring the flip queue wedged, check if
10968 * the hardware completed the operation behind our backs.
10970 if (__intel_pageflip_stall_check(dev
, crtc
)) {
10971 DRM_DEBUG_DRIVER("flip queue: previous flip completed, continuing\n");
10972 page_flip_completed(intel_crtc
);
10974 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
10975 spin_unlock_irq(&dev
->event_lock
);
10977 drm_crtc_vblank_put(crtc
);
10982 intel_crtc
->unpin_work
= work
;
10983 spin_unlock_irq(&dev
->event_lock
);
10985 if (atomic_read(&intel_crtc
->unpin_work_count
) >= 2)
10986 flush_workqueue(dev_priv
->wq
);
10988 /* Reference the objects for the scheduled work. */
10989 drm_framebuffer_reference(work
->old_fb
);
10990 drm_gem_object_reference(&obj
->base
);
10992 crtc
->primary
->fb
= fb
;
10993 update_state_fb(crtc
->primary
);
10995 work
->pending_flip_obj
= obj
;
10997 ret
= i915_mutex_lock_interruptible(dev
);
11001 atomic_inc(&intel_crtc
->unpin_work_count
);
11002 intel_crtc
->reset_counter
= atomic_read(&dev_priv
->gpu_error
.reset_counter
);
11004 if (INTEL_INFO(dev
)->gen
>= 5 || IS_G4X(dev
))
11005 work
->flip_count
= I915_READ(PIPE_FLIPCOUNT_GM45(pipe
)) + 1;
11007 if (IS_VALLEYVIEW(dev
)) {
11008 ring
= &dev_priv
->ring
[BCS
];
11009 if (obj
->tiling_mode
!= intel_fb_obj(work
->old_fb
)->tiling_mode
)
11010 /* vlv: DISPLAY_FLIP fails to change tiling */
11012 } else if (IS_IVYBRIDGE(dev
) || IS_HASWELL(dev
)) {
11013 ring
= &dev_priv
->ring
[BCS
];
11014 } else if (INTEL_INFO(dev
)->gen
>= 7) {
11015 ring
= i915_gem_request_get_ring(obj
->last_read_req
);
11016 if (ring
== NULL
|| ring
->id
!= RCS
)
11017 ring
= &dev_priv
->ring
[BCS
];
11019 ring
= &dev_priv
->ring
[RCS
];
11022 mmio_flip
= use_mmio_flip(ring
, obj
);
11024 /* When using CS flips, we want to emit semaphores between rings.
11025 * However, when using mmio flips we will create a task to do the
11026 * synchronisation, so all we want here is to pin the framebuffer
11027 * into the display plane and skip any waits.
11029 ret
= intel_pin_and_fence_fb_obj(crtc
->primary
, fb
,
11030 crtc
->primary
->state
,
11031 mmio_flip
? i915_gem_request_get_ring(obj
->last_read_req
) : ring
);
11033 goto cleanup_pending
;
11035 work
->gtt_offset
= intel_plane_obj_offset(to_intel_plane(primary
), obj
)
11036 + intel_crtc
->dspaddr_offset
;
11039 ret
= intel_queue_mmio_flip(dev
, crtc
, fb
, obj
, ring
,
11042 goto cleanup_unpin
;
11044 i915_gem_request_assign(&work
->flip_queued_req
,
11045 obj
->last_write_req
);
11047 ret
= dev_priv
->display
.queue_flip(dev
, crtc
, fb
, obj
, ring
,
11050 goto cleanup_unpin
;
11052 i915_gem_request_assign(&work
->flip_queued_req
,
11053 intel_ring_get_request(ring
));
11056 work
->flip_queued_vblank
= drm_crtc_vblank_count(crtc
);
11057 work
->enable_stall_check
= true;
11059 i915_gem_track_fb(intel_fb_obj(work
->old_fb
), obj
,
11060 INTEL_FRONTBUFFER_PRIMARY(pipe
));
11062 intel_fbc_disable(dev
);
11063 intel_frontbuffer_flip_prepare(dev
, INTEL_FRONTBUFFER_PRIMARY(pipe
));
11064 mutex_unlock(&dev
->struct_mutex
);
11066 trace_i915_flip_request(intel_crtc
->plane
, obj
);
11071 intel_unpin_fb_obj(fb
, crtc
->primary
->state
);
11073 atomic_dec(&intel_crtc
->unpin_work_count
);
11074 mutex_unlock(&dev
->struct_mutex
);
11076 crtc
->primary
->fb
= old_fb
;
11077 update_state_fb(crtc
->primary
);
11079 drm_gem_object_unreference_unlocked(&obj
->base
);
11080 drm_framebuffer_unreference(work
->old_fb
);
11082 spin_lock_irq(&dev
->event_lock
);
11083 intel_crtc
->unpin_work
= NULL
;
11084 spin_unlock_irq(&dev
->event_lock
);
11086 drm_crtc_vblank_put(crtc
);
11092 ret
= intel_plane_restore(primary
);
11093 if (ret
== 0 && event
) {
11094 spin_lock_irq(&dev
->event_lock
);
11095 drm_send_vblank_event(dev
, pipe
, event
);
11096 spin_unlock_irq(&dev
->event_lock
);
11102 static const struct drm_crtc_helper_funcs intel_helper_funcs
= {
11103 .mode_set_base_atomic
= intel_pipe_set_base_atomic
,
11104 .load_lut
= intel_crtc_load_lut
,
11105 .atomic_begin
= intel_begin_crtc_commit
,
11106 .atomic_flush
= intel_finish_crtc_commit
,
11110 * intel_modeset_update_staged_output_state
11112 * Updates the staged output configuration state, e.g. after we've read out the
11113 * current hw state.
11115 static void intel_modeset_update_staged_output_state(struct drm_device
*dev
)
11117 struct intel_crtc
*crtc
;
11118 struct intel_encoder
*encoder
;
11119 struct intel_connector
*connector
;
11121 for_each_intel_connector(dev
, connector
) {
11122 connector
->new_encoder
=
11123 to_intel_encoder(connector
->base
.encoder
);
11126 for_each_intel_encoder(dev
, encoder
) {
11127 encoder
->new_crtc
=
11128 to_intel_crtc(encoder
->base
.crtc
);
11131 for_each_intel_crtc(dev
, crtc
) {
11132 crtc
->new_enabled
= crtc
->base
.state
->enable
;
11136 /* Transitional helper to copy current connector/encoder state to
11137 * connector->state. This is needed so that code that is partially
11138 * converted to atomic does the right thing.
11140 static void intel_modeset_update_connector_atomic_state(struct drm_device
*dev
)
11142 struct intel_connector
*connector
;
11144 for_each_intel_connector(dev
, connector
) {
11145 if (connector
->base
.encoder
) {
11146 connector
->base
.state
->best_encoder
=
11147 connector
->base
.encoder
;
11148 connector
->base
.state
->crtc
=
11149 connector
->base
.encoder
->crtc
;
11151 connector
->base
.state
->best_encoder
= NULL
;
11152 connector
->base
.state
->crtc
= NULL
;
11157 /* Fixup legacy state after an atomic state swap.
11159 static void intel_modeset_fixup_state(struct drm_atomic_state
*state
)
11161 struct intel_crtc
*crtc
;
11162 struct intel_encoder
*encoder
;
11163 struct intel_connector
*connector
;
11165 for_each_intel_connector(state
->dev
, connector
) {
11166 connector
->base
.encoder
= connector
->base
.state
->best_encoder
;
11167 if (connector
->base
.encoder
)
11168 connector
->base
.encoder
->crtc
=
11169 connector
->base
.state
->crtc
;
11172 /* Update crtc of disabled encoders */
11173 for_each_intel_encoder(state
->dev
, encoder
) {
11174 int num_connectors
= 0;
11176 for_each_intel_connector(state
->dev
, connector
)
11177 if (connector
->base
.encoder
== &encoder
->base
)
11180 if (num_connectors
== 0)
11181 encoder
->base
.crtc
= NULL
;
11184 for_each_intel_crtc(state
->dev
, crtc
) {
11185 crtc
->base
.enabled
= crtc
->base
.state
->enable
;
11186 crtc
->config
= to_intel_crtc_state(crtc
->base
.state
);
11189 /* Copy the new configuration to the staged state, to keep the few
11190 * pieces of code that haven't been converted yet happy */
11191 intel_modeset_update_staged_output_state(state
->dev
);
11195 connected_sink_compute_bpp(struct intel_connector
*connector
,
11196 struct intel_crtc_state
*pipe_config
)
11198 int bpp
= pipe_config
->pipe_bpp
;
11200 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n",
11201 connector
->base
.base
.id
,
11202 connector
->base
.name
);
11204 /* Don't use an invalid EDID bpc value */
11205 if (connector
->base
.display_info
.bpc
&&
11206 connector
->base
.display_info
.bpc
* 3 < bpp
) {
11207 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
11208 bpp
, connector
->base
.display_info
.bpc
*3);
11209 pipe_config
->pipe_bpp
= connector
->base
.display_info
.bpc
*3;
11212 /* Clamp bpp to 8 on screens without EDID 1.4 */
11213 if (connector
->base
.display_info
.bpc
== 0 && bpp
> 24) {
11214 DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
11216 pipe_config
->pipe_bpp
= 24;
11221 compute_baseline_pipe_bpp(struct intel_crtc
*crtc
,
11222 struct intel_crtc_state
*pipe_config
)
11224 struct drm_device
*dev
= crtc
->base
.dev
;
11225 struct drm_atomic_state
*state
;
11226 struct drm_connector
*connector
;
11227 struct drm_connector_state
*connector_state
;
11230 if ((IS_G4X(dev
) || IS_VALLEYVIEW(dev
)))
11232 else if (INTEL_INFO(dev
)->gen
>= 5)
11238 pipe_config
->pipe_bpp
= bpp
;
11240 state
= pipe_config
->base
.state
;
11242 /* Clamp display bpp to EDID value */
11243 for_each_connector_in_state(state
, connector
, connector_state
, i
) {
11244 if (connector_state
->crtc
!= &crtc
->base
)
11247 connected_sink_compute_bpp(to_intel_connector(connector
),
11254 static void intel_dump_crtc_timings(const struct drm_display_mode
*mode
)
11256 DRM_DEBUG_KMS("crtc timings: %d %d %d %d %d %d %d %d %d, "
11257 "type: 0x%x flags: 0x%x\n",
11259 mode
->crtc_hdisplay
, mode
->crtc_hsync_start
,
11260 mode
->crtc_hsync_end
, mode
->crtc_htotal
,
11261 mode
->crtc_vdisplay
, mode
->crtc_vsync_start
,
11262 mode
->crtc_vsync_end
, mode
->crtc_vtotal
, mode
->type
, mode
->flags
);
11265 static void intel_dump_pipe_config(struct intel_crtc
*crtc
,
11266 struct intel_crtc_state
*pipe_config
,
11267 const char *context
)
11269 struct drm_device
*dev
= crtc
->base
.dev
;
11270 struct drm_plane
*plane
;
11271 struct intel_plane
*intel_plane
;
11272 struct intel_plane_state
*state
;
11273 struct drm_framebuffer
*fb
;
11275 DRM_DEBUG_KMS("[CRTC:%d]%s config %p for pipe %c\n", crtc
->base
.base
.id
,
11276 context
, pipe_config
, pipe_name(crtc
->pipe
));
11278 DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config
->cpu_transcoder
));
11279 DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n",
11280 pipe_config
->pipe_bpp
, pipe_config
->dither
);
11281 DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
11282 pipe_config
->has_pch_encoder
,
11283 pipe_config
->fdi_lanes
,
11284 pipe_config
->fdi_m_n
.gmch_m
, pipe_config
->fdi_m_n
.gmch_n
,
11285 pipe_config
->fdi_m_n
.link_m
, pipe_config
->fdi_m_n
.link_n
,
11286 pipe_config
->fdi_m_n
.tu
);
11287 DRM_DEBUG_KMS("dp: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
11288 pipe_config
->has_dp_encoder
,
11289 pipe_config
->dp_m_n
.gmch_m
, pipe_config
->dp_m_n
.gmch_n
,
11290 pipe_config
->dp_m_n
.link_m
, pipe_config
->dp_m_n
.link_n
,
11291 pipe_config
->dp_m_n
.tu
);
11293 DRM_DEBUG_KMS("dp: %i, gmch_m2: %u, gmch_n2: %u, link_m2: %u, link_n2: %u, tu2: %u\n",
11294 pipe_config
->has_dp_encoder
,
11295 pipe_config
->dp_m2_n2
.gmch_m
,
11296 pipe_config
->dp_m2_n2
.gmch_n
,
11297 pipe_config
->dp_m2_n2
.link_m
,
11298 pipe_config
->dp_m2_n2
.link_n
,
11299 pipe_config
->dp_m2_n2
.tu
);
11301 DRM_DEBUG_KMS("audio: %i, infoframes: %i\n",
11302 pipe_config
->has_audio
,
11303 pipe_config
->has_infoframe
);
11305 DRM_DEBUG_KMS("requested mode:\n");
11306 drm_mode_debug_printmodeline(&pipe_config
->base
.mode
);
11307 DRM_DEBUG_KMS("adjusted mode:\n");
11308 drm_mode_debug_printmodeline(&pipe_config
->base
.adjusted_mode
);
11309 intel_dump_crtc_timings(&pipe_config
->base
.adjusted_mode
);
11310 DRM_DEBUG_KMS("port clock: %d\n", pipe_config
->port_clock
);
11311 DRM_DEBUG_KMS("pipe src size: %dx%d\n",
11312 pipe_config
->pipe_src_w
, pipe_config
->pipe_src_h
);
11313 DRM_DEBUG_KMS("num_scalers: %d\n", crtc
->num_scalers
);
11314 DRM_DEBUG_KMS("scaler_users: 0x%x\n", pipe_config
->scaler_state
.scaler_users
);
11315 DRM_DEBUG_KMS("scaler id: %d\n", pipe_config
->scaler_state
.scaler_id
);
11316 DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n",
11317 pipe_config
->gmch_pfit
.control
,
11318 pipe_config
->gmch_pfit
.pgm_ratios
,
11319 pipe_config
->gmch_pfit
.lvds_border_bits
);
11320 DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n",
11321 pipe_config
->pch_pfit
.pos
,
11322 pipe_config
->pch_pfit
.size
,
11323 pipe_config
->pch_pfit
.enabled
? "enabled" : "disabled");
11324 DRM_DEBUG_KMS("ips: %i\n", pipe_config
->ips_enabled
);
11325 DRM_DEBUG_KMS("double wide: %i\n", pipe_config
->double_wide
);
11327 DRM_DEBUG_KMS("planes on this crtc\n");
11328 list_for_each_entry(plane
, &dev
->mode_config
.plane_list
, head
) {
11329 intel_plane
= to_intel_plane(plane
);
11330 if (intel_plane
->pipe
!= crtc
->pipe
)
11333 state
= to_intel_plane_state(plane
->state
);
11334 fb
= state
->base
.fb
;
11336 DRM_DEBUG_KMS("%s PLANE:%d plane: %u.%u idx: %d "
11337 "disabled, scaler_id = %d\n",
11338 plane
->type
== DRM_PLANE_TYPE_CURSOR
? "CURSOR" : "STANDARD",
11339 plane
->base
.id
, intel_plane
->pipe
,
11340 (crtc
->base
.primary
== plane
) ? 0 : intel_plane
->plane
+ 1,
11341 drm_plane_index(plane
), state
->scaler_id
);
11345 DRM_DEBUG_KMS("%s PLANE:%d plane: %u.%u idx: %d enabled",
11346 plane
->type
== DRM_PLANE_TYPE_CURSOR
? "CURSOR" : "STANDARD",
11347 plane
->base
.id
, intel_plane
->pipe
,
11348 crtc
->base
.primary
== plane
? 0 : intel_plane
->plane
+ 1,
11349 drm_plane_index(plane
));
11350 DRM_DEBUG_KMS("\tFB:%d, fb = %ux%u format = 0x%x",
11351 fb
->base
.id
, fb
->width
, fb
->height
, fb
->pixel_format
);
11352 DRM_DEBUG_KMS("\tscaler:%d src (%u, %u) %ux%u dst (%u, %u) %ux%u\n",
11354 state
->src
.x1
>> 16, state
->src
.y1
>> 16,
11355 drm_rect_width(&state
->src
) >> 16,
11356 drm_rect_height(&state
->src
) >> 16,
11357 state
->dst
.x1
, state
->dst
.y1
,
11358 drm_rect_width(&state
->dst
), drm_rect_height(&state
->dst
));
11362 static bool encoders_cloneable(const struct intel_encoder
*a
,
11363 const struct intel_encoder
*b
)
11365 /* masks could be asymmetric, so check both ways */
11366 return a
== b
|| (a
->cloneable
& (1 << b
->type
) &&
11367 b
->cloneable
& (1 << a
->type
));
11370 static bool check_single_encoder_cloning(struct drm_atomic_state
*state
,
11371 struct intel_crtc
*crtc
,
11372 struct intel_encoder
*encoder
)
11374 struct intel_encoder
*source_encoder
;
11375 struct drm_connector
*connector
;
11376 struct drm_connector_state
*connector_state
;
11379 for_each_connector_in_state(state
, connector
, connector_state
, i
) {
11380 if (connector_state
->crtc
!= &crtc
->base
)
11384 to_intel_encoder(connector_state
->best_encoder
);
11385 if (!encoders_cloneable(encoder
, source_encoder
))
11392 static bool check_encoder_cloning(struct drm_atomic_state
*state
,
11393 struct intel_crtc
*crtc
)
11395 struct intel_encoder
*encoder
;
11396 struct drm_connector
*connector
;
11397 struct drm_connector_state
*connector_state
;
11400 for_each_connector_in_state(state
, connector
, connector_state
, i
) {
11401 if (connector_state
->crtc
!= &crtc
->base
)
11404 encoder
= to_intel_encoder(connector_state
->best_encoder
);
11405 if (!check_single_encoder_cloning(state
, crtc
, encoder
))
11412 static bool check_digital_port_conflicts(struct drm_atomic_state
*state
)
11414 struct drm_device
*dev
= state
->dev
;
11415 struct intel_encoder
*encoder
;
11416 struct drm_connector
*connector
;
11417 struct drm_connector_state
*connector_state
;
11418 unsigned int used_ports
= 0;
11422 * Walk the connector list instead of the encoder
11423 * list to detect the problem on ddi platforms
11424 * where there's just one encoder per digital port.
11426 for_each_connector_in_state(state
, connector
, connector_state
, i
) {
11427 if (!connector_state
->best_encoder
)
11430 encoder
= to_intel_encoder(connector_state
->best_encoder
);
11432 WARN_ON(!connector_state
->crtc
);
11434 switch (encoder
->type
) {
11435 unsigned int port_mask
;
11436 case INTEL_OUTPUT_UNKNOWN
:
11437 if (WARN_ON(!HAS_DDI(dev
)))
11439 case INTEL_OUTPUT_DISPLAYPORT
:
11440 case INTEL_OUTPUT_HDMI
:
11441 case INTEL_OUTPUT_EDP
:
11442 port_mask
= 1 << enc_to_dig_port(&encoder
->base
)->port
;
11444 /* the same port mustn't appear more than once */
11445 if (used_ports
& port_mask
)
11448 used_ports
|= port_mask
;
11458 clear_intel_crtc_state(struct intel_crtc_state
*crtc_state
)
11460 struct drm_crtc_state tmp_state
;
11461 struct intel_crtc_scaler_state scaler_state
;
11462 struct intel_dpll_hw_state dpll_hw_state
;
11463 enum intel_dpll_id shared_dpll
;
11465 /* Clear only the intel specific part of the crtc state excluding scalers */
11466 tmp_state
= crtc_state
->base
;
11467 scaler_state
= crtc_state
->scaler_state
;
11468 shared_dpll
= crtc_state
->shared_dpll
;
11469 dpll_hw_state
= crtc_state
->dpll_hw_state
;
11471 memset(crtc_state
, 0, sizeof *crtc_state
);
11473 crtc_state
->base
= tmp_state
;
11474 crtc_state
->scaler_state
= scaler_state
;
11475 crtc_state
->shared_dpll
= shared_dpll
;
11476 crtc_state
->dpll_hw_state
= dpll_hw_state
;
11480 intel_modeset_pipe_config(struct drm_crtc
*crtc
,
11481 struct drm_atomic_state
*state
,
11482 struct intel_crtc_state
*pipe_config
)
11484 struct intel_encoder
*encoder
;
11485 struct drm_connector
*connector
;
11486 struct drm_connector_state
*connector_state
;
11487 int base_bpp
, ret
= -EINVAL
;
11491 if (!check_encoder_cloning(state
, to_intel_crtc(crtc
))) {
11492 DRM_DEBUG_KMS("rejecting invalid cloning configuration\n");
11496 if (!check_digital_port_conflicts(state
)) {
11497 DRM_DEBUG_KMS("rejecting conflicting digital port configuration\n");
11501 clear_intel_crtc_state(pipe_config
);
11503 pipe_config
->cpu_transcoder
=
11504 (enum transcoder
) to_intel_crtc(crtc
)->pipe
;
11507 * Sanitize sync polarity flags based on requested ones. If neither
11508 * positive or negative polarity is requested, treat this as meaning
11509 * negative polarity.
11511 if (!(pipe_config
->base
.adjusted_mode
.flags
&
11512 (DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NHSYNC
)))
11513 pipe_config
->base
.adjusted_mode
.flags
|= DRM_MODE_FLAG_NHSYNC
;
11515 if (!(pipe_config
->base
.adjusted_mode
.flags
&
11516 (DRM_MODE_FLAG_PVSYNC
| DRM_MODE_FLAG_NVSYNC
)))
11517 pipe_config
->base
.adjusted_mode
.flags
|= DRM_MODE_FLAG_NVSYNC
;
11519 /* Compute a starting value for pipe_config->pipe_bpp taking the source
11520 * plane pixel format and any sink constraints into account. Returns the
11521 * source plane bpp so that dithering can be selected on mismatches
11522 * after encoders and crtc also have had their say. */
11523 base_bpp
= compute_baseline_pipe_bpp(to_intel_crtc(crtc
),
11529 * Determine the real pipe dimensions. Note that stereo modes can
11530 * increase the actual pipe size due to the frame doubling and
11531 * insertion of additional space for blanks between the frame. This
11532 * is stored in the crtc timings. We use the requested mode to do this
11533 * computation to clearly distinguish it from the adjusted mode, which
11534 * can be changed by the connectors in the below retry loop.
11536 drm_crtc_get_hv_timing(&pipe_config
->base
.mode
,
11537 &pipe_config
->pipe_src_w
,
11538 &pipe_config
->pipe_src_h
);
11541 /* Ensure the port clock defaults are reset when retrying. */
11542 pipe_config
->port_clock
= 0;
11543 pipe_config
->pixel_multiplier
= 1;
11545 /* Fill in default crtc timings, allow encoders to overwrite them. */
11546 drm_mode_set_crtcinfo(&pipe_config
->base
.adjusted_mode
,
11547 CRTC_STEREO_DOUBLE
);
11549 /* Pass our mode to the connectors and the CRTC to give them a chance to
11550 * adjust it according to limitations or connector properties, and also
11551 * a chance to reject the mode entirely.
11553 for_each_connector_in_state(state
, connector
, connector_state
, i
) {
11554 if (connector_state
->crtc
!= crtc
)
11557 encoder
= to_intel_encoder(connector_state
->best_encoder
);
11559 if (!(encoder
->compute_config(encoder
, pipe_config
))) {
11560 DRM_DEBUG_KMS("Encoder config failure\n");
11565 /* Set default port clock if not overwritten by the encoder. Needs to be
11566 * done afterwards in case the encoder adjusts the mode. */
11567 if (!pipe_config
->port_clock
)
11568 pipe_config
->port_clock
= pipe_config
->base
.adjusted_mode
.crtc_clock
11569 * pipe_config
->pixel_multiplier
;
11571 ret
= intel_crtc_compute_config(to_intel_crtc(crtc
), pipe_config
);
11573 DRM_DEBUG_KMS("CRTC fixup failed\n");
11577 if (ret
== RETRY
) {
11578 if (WARN(!retry
, "loop in pipe configuration computation\n")) {
11583 DRM_DEBUG_KMS("CRTC bw constrained, retrying\n");
11585 goto encoder_retry
;
11588 pipe_config
->dither
= pipe_config
->pipe_bpp
!= base_bpp
;
11589 DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n",
11590 base_bpp
, pipe_config
->pipe_bpp
, pipe_config
->dither
);
11597 static bool intel_crtc_in_use(struct drm_crtc
*crtc
)
11599 struct drm_encoder
*encoder
;
11600 struct drm_device
*dev
= crtc
->dev
;
11602 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
)
11603 if (encoder
->crtc
== crtc
)
11610 needs_modeset(struct drm_crtc_state
*state
)
11612 return state
->mode_changed
|| state
->active_changed
;
11616 intel_modeset_update_state(struct drm_atomic_state
*state
)
11618 struct drm_device
*dev
= state
->dev
;
11619 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11620 struct intel_encoder
*intel_encoder
;
11621 struct drm_crtc
*crtc
;
11622 struct drm_crtc_state
*crtc_state
;
11623 struct drm_connector
*connector
;
11626 intel_shared_dpll_commit(dev_priv
);
11628 for_each_intel_encoder(dev
, intel_encoder
) {
11629 if (!intel_encoder
->base
.crtc
)
11632 for_each_crtc_in_state(state
, crtc
, crtc_state
, i
)
11633 if (crtc
== intel_encoder
->base
.crtc
)
11636 if (crtc
!= intel_encoder
->base
.crtc
)
11639 if (crtc_state
->enable
&& needs_modeset(crtc_state
))
11640 intel_encoder
->connectors_active
= false;
11643 drm_atomic_helper_swap_state(state
->dev
, state
);
11644 intel_modeset_fixup_state(state
);
11646 /* Double check state. */
11647 for_each_crtc(dev
, crtc
) {
11648 WARN_ON(crtc
->state
->enable
!= intel_crtc_in_use(crtc
));
11651 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
11652 if (!connector
->encoder
|| !connector
->encoder
->crtc
)
11655 for_each_crtc_in_state(state
, crtc
, crtc_state
, i
)
11656 if (crtc
== connector
->encoder
->crtc
)
11659 if (crtc
!= connector
->encoder
->crtc
)
11662 if (crtc
->state
->enable
&& needs_modeset(crtc
->state
)) {
11663 struct drm_property
*dpms_property
=
11664 dev
->mode_config
.dpms_property
;
11666 connector
->dpms
= DRM_MODE_DPMS_ON
;
11667 drm_object_property_set_value(&connector
->base
,
11671 intel_encoder
= to_intel_encoder(connector
->encoder
);
11672 intel_encoder
->connectors_active
= true;
11678 static bool intel_fuzzy_clock_check(int clock1
, int clock2
)
11682 if (clock1
== clock2
)
11685 if (!clock1
|| !clock2
)
11688 diff
= abs(clock1
- clock2
);
11690 if (((((diff
+ clock1
+ clock2
) * 100)) / (clock1
+ clock2
)) < 105)
11696 #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
11697 list_for_each_entry((intel_crtc), \
11698 &(dev)->mode_config.crtc_list, \
11700 if (mask & (1 <<(intel_crtc)->pipe))
11703 intel_pipe_config_compare(struct drm_device
*dev
,
11704 struct intel_crtc_state
*current_config
,
11705 struct intel_crtc_state
*pipe_config
)
11707 #define PIPE_CONF_CHECK_X(name) \
11708 if (current_config->name != pipe_config->name) { \
11709 DRM_ERROR("mismatch in " #name " " \
11710 "(expected 0x%08x, found 0x%08x)\n", \
11711 current_config->name, \
11712 pipe_config->name); \
11716 #define PIPE_CONF_CHECK_I(name) \
11717 if (current_config->name != pipe_config->name) { \
11718 DRM_ERROR("mismatch in " #name " " \
11719 "(expected %i, found %i)\n", \
11720 current_config->name, \
11721 pipe_config->name); \
11725 /* This is required for BDW+ where there is only one set of registers for
11726 * switching between high and low RR.
11727 * This macro can be used whenever a comparison has to be made between one
11728 * hw state and multiple sw state variables.
11730 #define PIPE_CONF_CHECK_I_ALT(name, alt_name) \
11731 if ((current_config->name != pipe_config->name) && \
11732 (current_config->alt_name != pipe_config->name)) { \
11733 DRM_ERROR("mismatch in " #name " " \
11734 "(expected %i or %i, found %i)\n", \
11735 current_config->name, \
11736 current_config->alt_name, \
11737 pipe_config->name); \
11741 #define PIPE_CONF_CHECK_FLAGS(name, mask) \
11742 if ((current_config->name ^ pipe_config->name) & (mask)) { \
11743 DRM_ERROR("mismatch in " #name "(" #mask ") " \
11744 "(expected %i, found %i)\n", \
11745 current_config->name & (mask), \
11746 pipe_config->name & (mask)); \
11750 #define PIPE_CONF_CHECK_CLOCK_FUZZY(name) \
11751 if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \
11752 DRM_ERROR("mismatch in " #name " " \
11753 "(expected %i, found %i)\n", \
11754 current_config->name, \
11755 pipe_config->name); \
11759 #define PIPE_CONF_QUIRK(quirk) \
11760 ((current_config->quirks | pipe_config->quirks) & (quirk))
11762 PIPE_CONF_CHECK_I(cpu_transcoder
);
11764 PIPE_CONF_CHECK_I(has_pch_encoder
);
11765 PIPE_CONF_CHECK_I(fdi_lanes
);
11766 PIPE_CONF_CHECK_I(fdi_m_n
.gmch_m
);
11767 PIPE_CONF_CHECK_I(fdi_m_n
.gmch_n
);
11768 PIPE_CONF_CHECK_I(fdi_m_n
.link_m
);
11769 PIPE_CONF_CHECK_I(fdi_m_n
.link_n
);
11770 PIPE_CONF_CHECK_I(fdi_m_n
.tu
);
11772 PIPE_CONF_CHECK_I(has_dp_encoder
);
11774 if (INTEL_INFO(dev
)->gen
< 8) {
11775 PIPE_CONF_CHECK_I(dp_m_n
.gmch_m
);
11776 PIPE_CONF_CHECK_I(dp_m_n
.gmch_n
);
11777 PIPE_CONF_CHECK_I(dp_m_n
.link_m
);
11778 PIPE_CONF_CHECK_I(dp_m_n
.link_n
);
11779 PIPE_CONF_CHECK_I(dp_m_n
.tu
);
11781 if (current_config
->has_drrs
) {
11782 PIPE_CONF_CHECK_I(dp_m2_n2
.gmch_m
);
11783 PIPE_CONF_CHECK_I(dp_m2_n2
.gmch_n
);
11784 PIPE_CONF_CHECK_I(dp_m2_n2
.link_m
);
11785 PIPE_CONF_CHECK_I(dp_m2_n2
.link_n
);
11786 PIPE_CONF_CHECK_I(dp_m2_n2
.tu
);
11789 PIPE_CONF_CHECK_I_ALT(dp_m_n
.gmch_m
, dp_m2_n2
.gmch_m
);
11790 PIPE_CONF_CHECK_I_ALT(dp_m_n
.gmch_n
, dp_m2_n2
.gmch_n
);
11791 PIPE_CONF_CHECK_I_ALT(dp_m_n
.link_m
, dp_m2_n2
.link_m
);
11792 PIPE_CONF_CHECK_I_ALT(dp_m_n
.link_n
, dp_m2_n2
.link_n
);
11793 PIPE_CONF_CHECK_I_ALT(dp_m_n
.tu
, dp_m2_n2
.tu
);
11796 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hdisplay
);
11797 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_htotal
);
11798 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hblank_start
);
11799 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hblank_end
);
11800 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hsync_start
);
11801 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_hsync_end
);
11803 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vdisplay
);
11804 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vtotal
);
11805 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vblank_start
);
11806 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vblank_end
);
11807 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vsync_start
);
11808 PIPE_CONF_CHECK_I(base
.adjusted_mode
.crtc_vsync_end
);
11810 PIPE_CONF_CHECK_I(pixel_multiplier
);
11811 PIPE_CONF_CHECK_I(has_hdmi_sink
);
11812 if ((INTEL_INFO(dev
)->gen
< 8 && !IS_HASWELL(dev
)) ||
11813 IS_VALLEYVIEW(dev
))
11814 PIPE_CONF_CHECK_I(limited_color_range
);
11815 PIPE_CONF_CHECK_I(has_infoframe
);
11817 PIPE_CONF_CHECK_I(has_audio
);
11819 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
11820 DRM_MODE_FLAG_INTERLACE
);
11822 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS
)) {
11823 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
11824 DRM_MODE_FLAG_PHSYNC
);
11825 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
11826 DRM_MODE_FLAG_NHSYNC
);
11827 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
11828 DRM_MODE_FLAG_PVSYNC
);
11829 PIPE_CONF_CHECK_FLAGS(base
.adjusted_mode
.flags
,
11830 DRM_MODE_FLAG_NVSYNC
);
11833 PIPE_CONF_CHECK_I(pipe_src_w
);
11834 PIPE_CONF_CHECK_I(pipe_src_h
);
11837 * FIXME: BIOS likes to set up a cloned config with lvds+external
11838 * screen. Since we don't yet re-compute the pipe config when moving
11839 * just the lvds port away to another pipe the sw tracking won't match.
11841 * Proper atomic modesets with recomputed global state will fix this.
11842 * Until then just don't check gmch state for inherited modes.
11844 if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_INHERITED_MODE
)) {
11845 PIPE_CONF_CHECK_I(gmch_pfit
.control
);
11846 /* pfit ratios are autocomputed by the hw on gen4+ */
11847 if (INTEL_INFO(dev
)->gen
< 4)
11848 PIPE_CONF_CHECK_I(gmch_pfit
.pgm_ratios
);
11849 PIPE_CONF_CHECK_I(gmch_pfit
.lvds_border_bits
);
11852 PIPE_CONF_CHECK_I(pch_pfit
.enabled
);
11853 if (current_config
->pch_pfit
.enabled
) {
11854 PIPE_CONF_CHECK_I(pch_pfit
.pos
);
11855 PIPE_CONF_CHECK_I(pch_pfit
.size
);
11858 PIPE_CONF_CHECK_I(scaler_state
.scaler_id
);
11860 /* BDW+ don't expose a synchronous way to read the state */
11861 if (IS_HASWELL(dev
))
11862 PIPE_CONF_CHECK_I(ips_enabled
);
11864 PIPE_CONF_CHECK_I(double_wide
);
11866 PIPE_CONF_CHECK_X(ddi_pll_sel
);
11868 PIPE_CONF_CHECK_I(shared_dpll
);
11869 PIPE_CONF_CHECK_X(dpll_hw_state
.dpll
);
11870 PIPE_CONF_CHECK_X(dpll_hw_state
.dpll_md
);
11871 PIPE_CONF_CHECK_X(dpll_hw_state
.fp0
);
11872 PIPE_CONF_CHECK_X(dpll_hw_state
.fp1
);
11873 PIPE_CONF_CHECK_X(dpll_hw_state
.wrpll
);
11874 PIPE_CONF_CHECK_X(dpll_hw_state
.ctrl1
);
11875 PIPE_CONF_CHECK_X(dpll_hw_state
.cfgcr1
);
11876 PIPE_CONF_CHECK_X(dpll_hw_state
.cfgcr2
);
11878 if (IS_G4X(dev
) || INTEL_INFO(dev
)->gen
>= 5)
11879 PIPE_CONF_CHECK_I(pipe_bpp
);
11881 PIPE_CONF_CHECK_CLOCK_FUZZY(base
.adjusted_mode
.crtc_clock
);
11882 PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock
);
11884 #undef PIPE_CONF_CHECK_X
11885 #undef PIPE_CONF_CHECK_I
11886 #undef PIPE_CONF_CHECK_I_ALT
11887 #undef PIPE_CONF_CHECK_FLAGS
11888 #undef PIPE_CONF_CHECK_CLOCK_FUZZY
11889 #undef PIPE_CONF_QUIRK
11894 static void check_wm_state(struct drm_device
*dev
)
11896 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
11897 struct skl_ddb_allocation hw_ddb
, *sw_ddb
;
11898 struct intel_crtc
*intel_crtc
;
11901 if (INTEL_INFO(dev
)->gen
< 9)
11904 skl_ddb_get_hw_state(dev_priv
, &hw_ddb
);
11905 sw_ddb
= &dev_priv
->wm
.skl_hw
.ddb
;
11907 for_each_intel_crtc(dev
, intel_crtc
) {
11908 struct skl_ddb_entry
*hw_entry
, *sw_entry
;
11909 const enum pipe pipe
= intel_crtc
->pipe
;
11911 if (!intel_crtc
->active
)
11915 for_each_plane(dev_priv
, pipe
, plane
) {
11916 hw_entry
= &hw_ddb
.plane
[pipe
][plane
];
11917 sw_entry
= &sw_ddb
->plane
[pipe
][plane
];
11919 if (skl_ddb_entry_equal(hw_entry
, sw_entry
))
11922 DRM_ERROR("mismatch in DDB state pipe %c plane %d "
11923 "(expected (%u,%u), found (%u,%u))\n",
11924 pipe_name(pipe
), plane
+ 1,
11925 sw_entry
->start
, sw_entry
->end
,
11926 hw_entry
->start
, hw_entry
->end
);
11930 hw_entry
= &hw_ddb
.cursor
[pipe
];
11931 sw_entry
= &sw_ddb
->cursor
[pipe
];
11933 if (skl_ddb_entry_equal(hw_entry
, sw_entry
))
11936 DRM_ERROR("mismatch in DDB state pipe %c cursor "
11937 "(expected (%u,%u), found (%u,%u))\n",
11939 sw_entry
->start
, sw_entry
->end
,
11940 hw_entry
->start
, hw_entry
->end
);
11945 check_connector_state(struct drm_device
*dev
)
11947 struct intel_connector
*connector
;
11949 for_each_intel_connector(dev
, connector
) {
11950 /* This also checks the encoder/connector hw state with the
11951 * ->get_hw_state callbacks. */
11952 intel_connector_check_state(connector
);
11954 I915_STATE_WARN(&connector
->new_encoder
->base
!= connector
->base
.encoder
,
11955 "connector's staged encoder doesn't match current encoder\n");
11960 check_encoder_state(struct drm_device
*dev
)
11962 struct intel_encoder
*encoder
;
11963 struct intel_connector
*connector
;
11965 for_each_intel_encoder(dev
, encoder
) {
11966 bool enabled
= false;
11967 bool active
= false;
11968 enum pipe pipe
, tracked_pipe
;
11970 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
11971 encoder
->base
.base
.id
,
11972 encoder
->base
.name
);
11974 I915_STATE_WARN(&encoder
->new_crtc
->base
!= encoder
->base
.crtc
,
11975 "encoder's stage crtc doesn't match current crtc\n");
11976 I915_STATE_WARN(encoder
->connectors_active
&& !encoder
->base
.crtc
,
11977 "encoder's active_connectors set, but no crtc\n");
11979 for_each_intel_connector(dev
, connector
) {
11980 if (connector
->base
.encoder
!= &encoder
->base
)
11983 if (connector
->base
.dpms
!= DRM_MODE_DPMS_OFF
)
11987 * for MST connectors if we unplug the connector is gone
11988 * away but the encoder is still connected to a crtc
11989 * until a modeset happens in response to the hotplug.
11991 if (!enabled
&& encoder
->base
.encoder_type
== DRM_MODE_ENCODER_DPMST
)
11994 I915_STATE_WARN(!!encoder
->base
.crtc
!= enabled
,
11995 "encoder's enabled state mismatch "
11996 "(expected %i, found %i)\n",
11997 !!encoder
->base
.crtc
, enabled
);
11998 I915_STATE_WARN(active
&& !encoder
->base
.crtc
,
11999 "active encoder with no crtc\n");
12001 I915_STATE_WARN(encoder
->connectors_active
!= active
,
12002 "encoder's computed active state doesn't match tracked active state "
12003 "(expected %i, found %i)\n", active
, encoder
->connectors_active
);
12005 active
= encoder
->get_hw_state(encoder
, &pipe
);
12006 I915_STATE_WARN(active
!= encoder
->connectors_active
,
12007 "encoder's hw state doesn't match sw tracking "
12008 "(expected %i, found %i)\n",
12009 encoder
->connectors_active
, active
);
12011 if (!encoder
->base
.crtc
)
12014 tracked_pipe
= to_intel_crtc(encoder
->base
.crtc
)->pipe
;
12015 I915_STATE_WARN(active
&& pipe
!= tracked_pipe
,
12016 "active encoder's pipe doesn't match"
12017 "(expected %i, found %i)\n",
12018 tracked_pipe
, pipe
);
12024 check_crtc_state(struct drm_device
*dev
)
12026 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12027 struct intel_crtc
*crtc
;
12028 struct intel_encoder
*encoder
;
12029 struct intel_crtc_state pipe_config
;
12031 for_each_intel_crtc(dev
, crtc
) {
12032 bool enabled
= false;
12033 bool active
= false;
12035 memset(&pipe_config
, 0, sizeof(pipe_config
));
12037 DRM_DEBUG_KMS("[CRTC:%d]\n",
12038 crtc
->base
.base
.id
);
12040 I915_STATE_WARN(crtc
->active
&& !crtc
->base
.state
->enable
,
12041 "active crtc, but not enabled in sw tracking\n");
12043 for_each_intel_encoder(dev
, encoder
) {
12044 if (encoder
->base
.crtc
!= &crtc
->base
)
12047 if (encoder
->connectors_active
)
12051 I915_STATE_WARN(active
!= crtc
->active
,
12052 "crtc's computed active state doesn't match tracked active state "
12053 "(expected %i, found %i)\n", active
, crtc
->active
);
12054 I915_STATE_WARN(enabled
!= crtc
->base
.state
->enable
,
12055 "crtc's computed enabled state doesn't match tracked enabled state "
12056 "(expected %i, found %i)\n", enabled
,
12057 crtc
->base
.state
->enable
);
12059 active
= dev_priv
->display
.get_pipe_config(crtc
,
12062 /* hw state is inconsistent with the pipe quirk */
12063 if ((crtc
->pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
) ||
12064 (crtc
->pipe
== PIPE_B
&& dev_priv
->quirks
& QUIRK_PIPEB_FORCE
))
12065 active
= crtc
->active
;
12067 for_each_intel_encoder(dev
, encoder
) {
12069 if (encoder
->base
.crtc
!= &crtc
->base
)
12071 if (encoder
->get_hw_state(encoder
, &pipe
))
12072 encoder
->get_config(encoder
, &pipe_config
);
12075 I915_STATE_WARN(crtc
->active
!= active
,
12076 "crtc active state doesn't match with hw state "
12077 "(expected %i, found %i)\n", crtc
->active
, active
);
12080 !intel_pipe_config_compare(dev
, crtc
->config
, &pipe_config
)) {
12081 I915_STATE_WARN(1, "pipe state doesn't match!\n");
12082 intel_dump_pipe_config(crtc
, &pipe_config
,
12084 intel_dump_pipe_config(crtc
, crtc
->config
,
12091 check_shared_dpll_state(struct drm_device
*dev
)
12093 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12094 struct intel_crtc
*crtc
;
12095 struct intel_dpll_hw_state dpll_hw_state
;
12098 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
12099 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
12100 int enabled_crtcs
= 0, active_crtcs
= 0;
12103 memset(&dpll_hw_state
, 0, sizeof(dpll_hw_state
));
12105 DRM_DEBUG_KMS("%s\n", pll
->name
);
12107 active
= pll
->get_hw_state(dev_priv
, pll
, &dpll_hw_state
);
12109 I915_STATE_WARN(pll
->active
> hweight32(pll
->config
.crtc_mask
),
12110 "more active pll users than references: %i vs %i\n",
12111 pll
->active
, hweight32(pll
->config
.crtc_mask
));
12112 I915_STATE_WARN(pll
->active
&& !pll
->on
,
12113 "pll in active use but not on in sw tracking\n");
12114 I915_STATE_WARN(pll
->on
&& !pll
->active
,
12115 "pll in on but not on in use in sw tracking\n");
12116 I915_STATE_WARN(pll
->on
!= active
,
12117 "pll on state mismatch (expected %i, found %i)\n",
12120 for_each_intel_crtc(dev
, crtc
) {
12121 if (crtc
->base
.state
->enable
&& intel_crtc_to_shared_dpll(crtc
) == pll
)
12123 if (crtc
->active
&& intel_crtc_to_shared_dpll(crtc
) == pll
)
12126 I915_STATE_WARN(pll
->active
!= active_crtcs
,
12127 "pll active crtcs mismatch (expected %i, found %i)\n",
12128 pll
->active
, active_crtcs
);
12129 I915_STATE_WARN(hweight32(pll
->config
.crtc_mask
) != enabled_crtcs
,
12130 "pll enabled crtcs mismatch (expected %i, found %i)\n",
12131 hweight32(pll
->config
.crtc_mask
), enabled_crtcs
);
12133 I915_STATE_WARN(pll
->on
&& memcmp(&pll
->config
.hw_state
, &dpll_hw_state
,
12134 sizeof(dpll_hw_state
)),
12135 "pll hw state mismatch\n");
12140 intel_modeset_check_state(struct drm_device
*dev
)
12142 check_wm_state(dev
);
12143 check_connector_state(dev
);
12144 check_encoder_state(dev
);
12145 check_crtc_state(dev
);
12146 check_shared_dpll_state(dev
);
12149 void ironlake_check_encoder_dotclock(const struct intel_crtc_state
*pipe_config
,
12153 * FDI already provided one idea for the dotclock.
12154 * Yell if the encoder disagrees.
12156 WARN(!intel_fuzzy_clock_check(pipe_config
->base
.adjusted_mode
.crtc_clock
, dotclock
),
12157 "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n",
12158 pipe_config
->base
.adjusted_mode
.crtc_clock
, dotclock
);
12161 static void update_scanline_offset(struct intel_crtc
*crtc
)
12163 struct drm_device
*dev
= crtc
->base
.dev
;
12166 * The scanline counter increments at the leading edge of hsync.
12168 * On most platforms it starts counting from vtotal-1 on the
12169 * first active line. That means the scanline counter value is
12170 * always one less than what we would expect. Ie. just after
12171 * start of vblank, which also occurs at start of hsync (on the
12172 * last active line), the scanline counter will read vblank_start-1.
12174 * On gen2 the scanline counter starts counting from 1 instead
12175 * of vtotal-1, so we have to subtract one (or rather add vtotal-1
12176 * to keep the value positive), instead of adding one.
12178 * On HSW+ the behaviour of the scanline counter depends on the output
12179 * type. For DP ports it behaves like most other platforms, but on HDMI
12180 * there's an extra 1 line difference. So we need to add two instead of
12181 * one to the value.
12183 if (IS_GEN2(dev
)) {
12184 const struct drm_display_mode
*mode
= &crtc
->config
->base
.adjusted_mode
;
12187 vtotal
= mode
->crtc_vtotal
;
12188 if (mode
->flags
& DRM_MODE_FLAG_INTERLACE
)
12191 crtc
->scanline_offset
= vtotal
- 1;
12192 } else if (HAS_DDI(dev
) &&
12193 intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
)) {
12194 crtc
->scanline_offset
= 2;
12196 crtc
->scanline_offset
= 1;
12199 static struct intel_crtc_state
*
12200 intel_modeset_compute_config(struct drm_crtc
*crtc
,
12201 struct drm_atomic_state
*state
)
12203 struct intel_crtc_state
*pipe_config
;
12206 ret
= drm_atomic_add_affected_connectors(state
, crtc
);
12208 return ERR_PTR(ret
);
12210 ret
= drm_atomic_helper_check_modeset(state
->dev
, state
);
12212 return ERR_PTR(ret
);
12215 * Note this needs changes when we start tracking multiple modes
12216 * and crtcs. At that point we'll need to compute the whole config
12217 * (i.e. one pipe_config for each crtc) rather than just the one
12220 pipe_config
= intel_atomic_get_crtc_state(state
, to_intel_crtc(crtc
));
12221 if (IS_ERR(pipe_config
))
12222 return pipe_config
;
12224 if (!pipe_config
->base
.enable
)
12225 return pipe_config
;
12227 ret
= intel_modeset_pipe_config(crtc
, state
, pipe_config
);
12229 return ERR_PTR(ret
);
12231 /* Check things that can only be changed through modeset */
12232 if (pipe_config
->has_audio
!=
12233 to_intel_crtc(crtc
)->config
->has_audio
)
12234 pipe_config
->base
.mode_changed
= true;
12237 * Note we have an issue here with infoframes: current code
12238 * only updates them on the full mode set path per hw
12239 * requirements. So here we should be checking for any
12240 * required changes and forcing a mode set.
12243 intel_dump_pipe_config(to_intel_crtc(crtc
), pipe_config
,"[modeset]");
12245 ret
= drm_atomic_helper_check_planes(state
->dev
, state
);
12247 return ERR_PTR(ret
);
12249 return pipe_config
;
12252 static int __intel_set_mode_setup_plls(struct drm_atomic_state
*state
)
12254 struct drm_device
*dev
= state
->dev
;
12255 struct drm_i915_private
*dev_priv
= to_i915(dev
);
12256 unsigned clear_pipes
= 0;
12257 struct intel_crtc
*intel_crtc
;
12258 struct intel_crtc_state
*intel_crtc_state
;
12259 struct drm_crtc
*crtc
;
12260 struct drm_crtc_state
*crtc_state
;
12264 if (!dev_priv
->display
.crtc_compute_clock
)
12267 for_each_crtc_in_state(state
, crtc
, crtc_state
, i
) {
12268 intel_crtc
= to_intel_crtc(crtc
);
12269 intel_crtc_state
= to_intel_crtc_state(crtc_state
);
12271 if (needs_modeset(crtc_state
)) {
12272 clear_pipes
|= 1 << intel_crtc
->pipe
;
12273 intel_crtc_state
->shared_dpll
= DPLL_ID_PRIVATE
;
12274 memset(&intel_crtc_state
->dpll_hw_state
, 0,
12275 sizeof(intel_crtc_state
->dpll_hw_state
));
12279 ret
= intel_shared_dpll_start_config(dev_priv
, clear_pipes
);
12283 for_each_crtc_in_state(state
, crtc
, crtc_state
, i
) {
12284 if (!needs_modeset(crtc_state
) || !crtc_state
->enable
)
12287 intel_crtc
= to_intel_crtc(crtc
);
12288 intel_crtc_state
= to_intel_crtc_state(crtc_state
);
12290 ret
= dev_priv
->display
.crtc_compute_clock(intel_crtc
,
12293 intel_shared_dpll_abort_config(dev_priv
);
12302 /* Code that should eventually be part of atomic_check() */
12303 static int __intel_set_mode_checks(struct drm_atomic_state
*state
)
12305 struct drm_device
*dev
= state
->dev
;
12309 * See if the config requires any additional preparation, e.g.
12310 * to adjust global state with pipes off. We need to do this
12311 * here so we can get the modeset_pipe updated config for the new
12312 * mode set on this crtc. For other crtcs we need to use the
12313 * adjusted_mode bits in the crtc directly.
12315 if (IS_VALLEYVIEW(dev
) || IS_BROXTON(dev
)) {
12316 ret
= valleyview_modeset_global_pipes(state
);
12321 ret
= __intel_set_mode_setup_plls(state
);
12328 static int __intel_set_mode(struct drm_crtc
*modeset_crtc
,
12329 struct intel_crtc_state
*pipe_config
)
12331 struct drm_device
*dev
= modeset_crtc
->dev
;
12332 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12333 struct drm_atomic_state
*state
= pipe_config
->base
.state
;
12334 struct drm_crtc
*crtc
;
12335 struct drm_crtc_state
*crtc_state
;
12339 ret
= __intel_set_mode_checks(state
);
12343 ret
= drm_atomic_helper_prepare_planes(dev
, state
);
12347 for_each_crtc_in_state(state
, crtc
, crtc_state
, i
) {
12348 if (!needs_modeset(crtc_state
))
12351 if (!crtc_state
->enable
) {
12352 intel_crtc_disable(crtc
);
12353 } else if (crtc
->state
->enable
) {
12354 intel_crtc_disable_planes(crtc
);
12355 dev_priv
->display
.crtc_disable(crtc
);
12359 /* crtc->mode is already used by the ->mode_set callbacks, hence we need
12360 * to set it here already despite that we pass it down the callchain.
12362 * Note we'll need to fix this up when we start tracking multiple
12363 * pipes; here we assume a single modeset_pipe and only track the
12364 * single crtc and mode.
12366 if (pipe_config
->base
.enable
&& needs_modeset(&pipe_config
->base
)) {
12367 modeset_crtc
->mode
= pipe_config
->base
.mode
;
12370 * Calculate and store various constants which
12371 * are later needed by vblank and swap-completion
12372 * timestamping. They are derived from true hwmode.
12374 drm_calc_timestamping_constants(modeset_crtc
,
12375 &pipe_config
->base
.adjusted_mode
);
12378 /* Only after disabling all output pipelines that will be changed can we
12379 * update the the output configuration. */
12380 intel_modeset_update_state(state
);
12382 /* The state has been swaped above, so state actually contains the
12383 * old state now. */
12385 modeset_update_crtc_power_domains(state
);
12387 drm_atomic_helper_commit_planes(dev
, state
);
12389 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
12390 for_each_crtc_in_state(state
, crtc
, crtc_state
, i
) {
12391 if (!needs_modeset(crtc
->state
) || !crtc
->state
->enable
)
12394 update_scanline_offset(to_intel_crtc(crtc
));
12396 dev_priv
->display
.crtc_enable(crtc
);
12397 intel_crtc_enable_planes(crtc
);
12400 /* FIXME: add subpixel order */
12402 drm_atomic_helper_cleanup_planes(dev
, state
);
12404 drm_atomic_state_free(state
);
12409 static int intel_set_mode_with_config(struct drm_crtc
*crtc
,
12410 struct intel_crtc_state
*pipe_config
)
12414 ret
= __intel_set_mode(crtc
, pipe_config
);
12417 intel_modeset_check_state(crtc
->dev
);
12422 static int intel_set_mode(struct drm_crtc
*crtc
,
12423 struct drm_atomic_state
*state
)
12425 struct intel_crtc_state
*pipe_config
;
12428 pipe_config
= intel_modeset_compute_config(crtc
, state
);
12429 if (IS_ERR(pipe_config
)) {
12430 ret
= PTR_ERR(pipe_config
);
12434 ret
= intel_set_mode_with_config(crtc
, pipe_config
);
12442 void intel_crtc_restore_mode(struct drm_crtc
*crtc
)
12444 struct drm_device
*dev
= crtc
->dev
;
12445 struct drm_atomic_state
*state
;
12446 struct intel_crtc
*intel_crtc
;
12447 struct intel_encoder
*encoder
;
12448 struct intel_connector
*connector
;
12449 struct drm_connector_state
*connector_state
;
12450 struct intel_crtc_state
*crtc_state
;
12453 state
= drm_atomic_state_alloc(dev
);
12455 DRM_DEBUG_KMS("[CRTC:%d] mode restore failed, out of memory",
12460 state
->acquire_ctx
= dev
->mode_config
.acquire_ctx
;
12462 /* The force restore path in the HW readout code relies on the staged
12463 * config still keeping the user requested config while the actual
12464 * state has been overwritten by the configuration read from HW. We
12465 * need to copy the staged config to the atomic state, otherwise the
12466 * mode set will just reapply the state the HW is already in. */
12467 for_each_intel_encoder(dev
, encoder
) {
12468 if (&encoder
->new_crtc
->base
!= crtc
)
12471 for_each_intel_connector(dev
, connector
) {
12472 if (connector
->new_encoder
!= encoder
)
12475 connector_state
= drm_atomic_get_connector_state(state
, &connector
->base
);
12476 if (IS_ERR(connector_state
)) {
12477 DRM_DEBUG_KMS("Failed to add [CONNECTOR:%d:%s] to state: %ld\n",
12478 connector
->base
.base
.id
,
12479 connector
->base
.name
,
12480 PTR_ERR(connector_state
));
12484 connector_state
->crtc
= crtc
;
12485 connector_state
->best_encoder
= &encoder
->base
;
12489 for_each_intel_crtc(dev
, intel_crtc
) {
12490 if (intel_crtc
->new_enabled
== intel_crtc
->base
.enabled
)
12493 crtc_state
= intel_atomic_get_crtc_state(state
, intel_crtc
);
12494 if (IS_ERR(crtc_state
)) {
12495 DRM_DEBUG_KMS("Failed to add [CRTC:%d] to state: %ld\n",
12496 intel_crtc
->base
.base
.id
,
12497 PTR_ERR(crtc_state
));
12501 crtc_state
->base
.enable
= intel_crtc
->new_enabled
;
12503 if (&intel_crtc
->base
== crtc
)
12504 drm_mode_copy(&crtc_state
->base
.mode
, &crtc
->mode
);
12507 intel_modeset_setup_plane_state(state
, crtc
, &crtc
->mode
,
12508 crtc
->primary
->fb
, crtc
->x
, crtc
->y
);
12510 ret
= intel_set_mode(crtc
, state
);
12512 drm_atomic_state_free(state
);
12515 #undef for_each_intel_crtc_masked
12517 static bool intel_connector_in_mode_set(struct intel_connector
*connector
,
12518 struct drm_mode_set
*set
)
12522 for (ro
= 0; ro
< set
->num_connectors
; ro
++)
12523 if (set
->connectors
[ro
] == &connector
->base
)
12530 intel_modeset_stage_output_state(struct drm_device
*dev
,
12531 struct drm_mode_set
*set
,
12532 struct drm_atomic_state
*state
)
12534 struct intel_connector
*connector
;
12535 struct drm_connector
*drm_connector
;
12536 struct drm_connector_state
*connector_state
;
12537 struct drm_crtc
*crtc
;
12538 struct drm_crtc_state
*crtc_state
;
12541 /* The upper layers ensure that we either disable a crtc or have a list
12542 * of connectors. For paranoia, double-check this. */
12543 WARN_ON(!set
->fb
&& (set
->num_connectors
!= 0));
12544 WARN_ON(set
->fb
&& (set
->num_connectors
== 0));
12546 for_each_intel_connector(dev
, connector
) {
12547 bool in_mode_set
= intel_connector_in_mode_set(connector
, set
);
12549 if (!in_mode_set
&& connector
->base
.state
->crtc
!= set
->crtc
)
12553 drm_atomic_get_connector_state(state
, &connector
->base
);
12554 if (IS_ERR(connector_state
))
12555 return PTR_ERR(connector_state
);
12558 int pipe
= to_intel_crtc(set
->crtc
)->pipe
;
12559 connector_state
->best_encoder
=
12560 &intel_find_encoder(connector
, pipe
)->base
;
12563 if (connector
->base
.state
->crtc
!= set
->crtc
)
12566 /* If we disable the crtc, disable all its connectors. Also, if
12567 * the connector is on the changing crtc but not on the new
12568 * connector list, disable it. */
12569 if (!set
->fb
|| !in_mode_set
) {
12570 connector_state
->best_encoder
= NULL
;
12572 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
12573 connector
->base
.base
.id
,
12574 connector
->base
.name
);
12577 /* connector->new_encoder is now updated for all connectors. */
12579 for_each_connector_in_state(state
, drm_connector
, connector_state
, i
) {
12580 connector
= to_intel_connector(drm_connector
);
12582 if (!connector_state
->best_encoder
) {
12583 ret
= drm_atomic_set_crtc_for_connector(connector_state
,
12591 if (intel_connector_in_mode_set(connector
, set
)) {
12592 struct drm_crtc
*crtc
= connector
->base
.state
->crtc
;
12594 /* If this connector was in a previous crtc, add it
12595 * to the state. We might need to disable it. */
12598 drm_atomic_get_crtc_state(state
, crtc
);
12599 if (IS_ERR(crtc_state
))
12600 return PTR_ERR(crtc_state
);
12603 ret
= drm_atomic_set_crtc_for_connector(connector_state
,
12609 /* Make sure the new CRTC will work with the encoder */
12610 if (!drm_encoder_crtc_ok(connector_state
->best_encoder
,
12611 connector_state
->crtc
)) {
12615 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
12616 connector
->base
.base
.id
,
12617 connector
->base
.name
,
12618 connector_state
->crtc
->base
.id
);
12620 if (connector_state
->best_encoder
!= &connector
->encoder
->base
)
12621 connector
->encoder
=
12622 to_intel_encoder(connector_state
->best_encoder
);
12625 for_each_crtc_in_state(state
, crtc
, crtc_state
, i
) {
12626 ret
= drm_atomic_add_affected_connectors(state
, crtc
);
12630 crtc_state
->enable
= drm_atomic_connectors_for_crtc(state
, crtc
);
12633 ret
= intel_modeset_setup_plane_state(state
, set
->crtc
, set
->mode
,
12634 set
->fb
, set
->x
, set
->y
);
12638 crtc_state
= drm_atomic_get_crtc_state(state
, set
->crtc
);
12639 if (IS_ERR(crtc_state
))
12640 return PTR_ERR(crtc_state
);
12643 drm_mode_copy(&crtc_state
->mode
, set
->mode
);
12645 if (set
->num_connectors
)
12646 crtc_state
->active
= true;
12651 static bool primary_plane_visible(struct drm_crtc
*crtc
)
12653 struct intel_plane_state
*plane_state
=
12654 to_intel_plane_state(crtc
->primary
->state
);
12656 return plane_state
->visible
;
12659 static int intel_crtc_set_config(struct drm_mode_set
*set
)
12661 struct drm_device
*dev
;
12662 struct drm_atomic_state
*state
= NULL
;
12663 struct intel_crtc_state
*pipe_config
;
12664 bool primary_plane_was_visible
;
12668 BUG_ON(!set
->crtc
);
12669 BUG_ON(!set
->crtc
->helper_private
);
12671 /* Enforce sane interface api - has been abused by the fb helper. */
12672 BUG_ON(!set
->mode
&& set
->fb
);
12673 BUG_ON(set
->fb
&& set
->num_connectors
== 0);
12676 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
12677 set
->crtc
->base
.id
, set
->fb
->base
.id
,
12678 (int)set
->num_connectors
, set
->x
, set
->y
);
12680 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set
->crtc
->base
.id
);
12683 dev
= set
->crtc
->dev
;
12685 state
= drm_atomic_state_alloc(dev
);
12689 state
->acquire_ctx
= dev
->mode_config
.acquire_ctx
;
12691 ret
= intel_modeset_stage_output_state(dev
, set
, state
);
12695 pipe_config
= intel_modeset_compute_config(set
->crtc
, state
);
12696 if (IS_ERR(pipe_config
)) {
12697 ret
= PTR_ERR(pipe_config
);
12701 intel_update_pipe_size(to_intel_crtc(set
->crtc
));
12703 primary_plane_was_visible
= primary_plane_visible(set
->crtc
);
12705 ret
= intel_set_mode_with_config(set
->crtc
, pipe_config
);
12708 pipe_config
->base
.enable
&&
12709 pipe_config
->base
.planes_changed
&&
12710 !needs_modeset(&pipe_config
->base
)) {
12711 struct intel_crtc
*intel_crtc
= to_intel_crtc(set
->crtc
);
12714 * We need to make sure the primary plane is re-enabled if it
12715 * has previously been turned off.
12717 if (ret
== 0 && !primary_plane_was_visible
&&
12718 primary_plane_visible(set
->crtc
)) {
12719 WARN_ON(!intel_crtc
->active
);
12720 intel_post_enable_primary(set
->crtc
);
12724 * In the fastboot case this may be our only check of the
12725 * state after boot. It would be better to only do it on
12726 * the first update, but we don't have a nice way of doing that
12727 * (and really, set_config isn't used much for high freq page
12728 * flipping, so increasing its cost here shouldn't be a big
12731 if (i915
.fastboot
&& ret
== 0)
12732 intel_modeset_check_state(set
->crtc
->dev
);
12736 DRM_DEBUG_KMS("failed to set mode on [CRTC:%d], err = %d\n",
12737 set
->crtc
->base
.id
, ret
);
12742 drm_atomic_state_free(state
);
12746 static const struct drm_crtc_funcs intel_crtc_funcs
= {
12747 .gamma_set
= intel_crtc_gamma_set
,
12748 .set_config
= intel_crtc_set_config
,
12749 .destroy
= intel_crtc_destroy
,
12750 .page_flip
= intel_crtc_page_flip
,
12751 .atomic_duplicate_state
= intel_crtc_duplicate_state
,
12752 .atomic_destroy_state
= intel_crtc_destroy_state
,
12755 static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private
*dev_priv
,
12756 struct intel_shared_dpll
*pll
,
12757 struct intel_dpll_hw_state
*hw_state
)
12761 if (!intel_display_power_is_enabled(dev_priv
, POWER_DOMAIN_PLLS
))
12764 val
= I915_READ(PCH_DPLL(pll
->id
));
12765 hw_state
->dpll
= val
;
12766 hw_state
->fp0
= I915_READ(PCH_FP0(pll
->id
));
12767 hw_state
->fp1
= I915_READ(PCH_FP1(pll
->id
));
12769 return val
& DPLL_VCO_ENABLE
;
12772 static void ibx_pch_dpll_mode_set(struct drm_i915_private
*dev_priv
,
12773 struct intel_shared_dpll
*pll
)
12775 I915_WRITE(PCH_FP0(pll
->id
), pll
->config
.hw_state
.fp0
);
12776 I915_WRITE(PCH_FP1(pll
->id
), pll
->config
.hw_state
.fp1
);
12779 static void ibx_pch_dpll_enable(struct drm_i915_private
*dev_priv
,
12780 struct intel_shared_dpll
*pll
)
12782 /* PCH refclock must be enabled first */
12783 ibx_assert_pch_refclk_enabled(dev_priv
);
12785 I915_WRITE(PCH_DPLL(pll
->id
), pll
->config
.hw_state
.dpll
);
12787 /* Wait for the clocks to stabilize. */
12788 POSTING_READ(PCH_DPLL(pll
->id
));
12791 /* The pixel multiplier can only be updated once the
12792 * DPLL is enabled and the clocks are stable.
12794 * So write it again.
12796 I915_WRITE(PCH_DPLL(pll
->id
), pll
->config
.hw_state
.dpll
);
12797 POSTING_READ(PCH_DPLL(pll
->id
));
12801 static void ibx_pch_dpll_disable(struct drm_i915_private
*dev_priv
,
12802 struct intel_shared_dpll
*pll
)
12804 struct drm_device
*dev
= dev_priv
->dev
;
12805 struct intel_crtc
*crtc
;
12807 /* Make sure no transcoder isn't still depending on us. */
12808 for_each_intel_crtc(dev
, crtc
) {
12809 if (intel_crtc_to_shared_dpll(crtc
) == pll
)
12810 assert_pch_transcoder_disabled(dev_priv
, crtc
->pipe
);
12813 I915_WRITE(PCH_DPLL(pll
->id
), 0);
12814 POSTING_READ(PCH_DPLL(pll
->id
));
12818 static char *ibx_pch_dpll_names
[] = {
12823 static void ibx_pch_dpll_init(struct drm_device
*dev
)
12825 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12828 dev_priv
->num_shared_dpll
= 2;
12830 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
12831 dev_priv
->shared_dplls
[i
].id
= i
;
12832 dev_priv
->shared_dplls
[i
].name
= ibx_pch_dpll_names
[i
];
12833 dev_priv
->shared_dplls
[i
].mode_set
= ibx_pch_dpll_mode_set
;
12834 dev_priv
->shared_dplls
[i
].enable
= ibx_pch_dpll_enable
;
12835 dev_priv
->shared_dplls
[i
].disable
= ibx_pch_dpll_disable
;
12836 dev_priv
->shared_dplls
[i
].get_hw_state
=
12837 ibx_pch_dpll_get_hw_state
;
12841 static void intel_shared_dpll_init(struct drm_device
*dev
)
12843 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12846 intel_ddi_pll_init(dev
);
12847 else if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
12848 ibx_pch_dpll_init(dev
);
12850 dev_priv
->num_shared_dpll
= 0;
12852 BUG_ON(dev_priv
->num_shared_dpll
> I915_NUM_PLLS
);
12856 * intel_wm_need_update - Check whether watermarks need updating
12857 * @plane: drm plane
12858 * @state: new plane state
12860 * Check current plane state versus the new one to determine whether
12861 * watermarks need to be recalculated.
12863 * Returns true or false.
12865 bool intel_wm_need_update(struct drm_plane
*plane
,
12866 struct drm_plane_state
*state
)
12868 /* Update watermarks on tiling changes. */
12869 if (!plane
->state
->fb
|| !state
->fb
||
12870 plane
->state
->fb
->modifier
[0] != state
->fb
->modifier
[0] ||
12871 plane
->state
->rotation
!= state
->rotation
)
12878 * intel_prepare_plane_fb - Prepare fb for usage on plane
12879 * @plane: drm plane to prepare for
12880 * @fb: framebuffer to prepare for presentation
12882 * Prepares a framebuffer for usage on a display plane. Generally this
12883 * involves pinning the underlying object and updating the frontbuffer tracking
12884 * bits. Some older platforms need special physical address handling for
12887 * Returns 0 on success, negative error code on failure.
12890 intel_prepare_plane_fb(struct drm_plane
*plane
,
12891 struct drm_framebuffer
*fb
,
12892 const struct drm_plane_state
*new_state
)
12894 struct drm_device
*dev
= plane
->dev
;
12895 struct intel_plane
*intel_plane
= to_intel_plane(plane
);
12896 enum pipe pipe
= intel_plane
->pipe
;
12897 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
12898 struct drm_i915_gem_object
*old_obj
= intel_fb_obj(plane
->fb
);
12899 unsigned frontbuffer_bits
= 0;
12905 switch (plane
->type
) {
12906 case DRM_PLANE_TYPE_PRIMARY
:
12907 frontbuffer_bits
= INTEL_FRONTBUFFER_PRIMARY(pipe
);
12909 case DRM_PLANE_TYPE_CURSOR
:
12910 frontbuffer_bits
= INTEL_FRONTBUFFER_CURSOR(pipe
);
12912 case DRM_PLANE_TYPE_OVERLAY
:
12913 frontbuffer_bits
= INTEL_FRONTBUFFER_SPRITE(pipe
);
12917 mutex_lock(&dev
->struct_mutex
);
12919 if (plane
->type
== DRM_PLANE_TYPE_CURSOR
&&
12920 INTEL_INFO(dev
)->cursor_needs_physical
) {
12921 int align
= IS_I830(dev
) ? 16 * 1024 : 256;
12922 ret
= i915_gem_object_attach_phys(obj
, align
);
12924 DRM_DEBUG_KMS("failed to attach phys object\n");
12926 ret
= intel_pin_and_fence_fb_obj(plane
, fb
, new_state
, NULL
);
12930 i915_gem_track_fb(old_obj
, obj
, frontbuffer_bits
);
12932 mutex_unlock(&dev
->struct_mutex
);
12938 * intel_cleanup_plane_fb - Cleans up an fb after plane use
12939 * @plane: drm plane to clean up for
12940 * @fb: old framebuffer that was on plane
12942 * Cleans up a framebuffer that has just been removed from a plane.
12945 intel_cleanup_plane_fb(struct drm_plane
*plane
,
12946 struct drm_framebuffer
*fb
,
12947 const struct drm_plane_state
*old_state
)
12949 struct drm_device
*dev
= plane
->dev
;
12950 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
12955 if (plane
->type
!= DRM_PLANE_TYPE_CURSOR
||
12956 !INTEL_INFO(dev
)->cursor_needs_physical
) {
12957 mutex_lock(&dev
->struct_mutex
);
12958 intel_unpin_fb_obj(fb
, old_state
);
12959 mutex_unlock(&dev
->struct_mutex
);
12964 skl_max_scale(struct intel_crtc
*intel_crtc
, struct intel_crtc_state
*crtc_state
)
12967 struct drm_device
*dev
;
12968 struct drm_i915_private
*dev_priv
;
12969 int crtc_clock
, cdclk
;
12971 if (!intel_crtc
|| !crtc_state
)
12972 return DRM_PLANE_HELPER_NO_SCALING
;
12974 dev
= intel_crtc
->base
.dev
;
12975 dev_priv
= dev
->dev_private
;
12976 crtc_clock
= crtc_state
->base
.adjusted_mode
.crtc_clock
;
12977 cdclk
= dev_priv
->display
.get_display_clock_speed(dev
);
12979 if (!crtc_clock
|| !cdclk
)
12980 return DRM_PLANE_HELPER_NO_SCALING
;
12983 * skl max scale is lower of:
12984 * close to 3 but not 3, -1 is for that purpose
12988 max_scale
= min((1 << 16) * 3 - 1, (1 << 8) * ((cdclk
<< 8) / crtc_clock
));
12994 intel_check_primary_plane(struct drm_plane
*plane
,
12995 struct intel_plane_state
*state
)
12997 struct drm_device
*dev
= plane
->dev
;
12998 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
12999 struct drm_crtc
*crtc
= state
->base
.crtc
;
13000 struct intel_crtc
*intel_crtc
;
13001 struct intel_crtc_state
*crtc_state
;
13002 struct drm_framebuffer
*fb
= state
->base
.fb
;
13003 struct drm_rect
*dest
= &state
->dst
;
13004 struct drm_rect
*src
= &state
->src
;
13005 const struct drm_rect
*clip
= &state
->clip
;
13006 bool can_position
= false;
13007 int max_scale
= DRM_PLANE_HELPER_NO_SCALING
;
13008 int min_scale
= DRM_PLANE_HELPER_NO_SCALING
;
13011 crtc
= crtc
? crtc
: plane
->crtc
;
13012 intel_crtc
= to_intel_crtc(crtc
);
13013 crtc_state
= state
->base
.state
?
13014 intel_atomic_get_crtc_state(state
->base
.state
, intel_crtc
) : NULL
;
13016 if (INTEL_INFO(dev
)->gen
>= 9) {
13018 max_scale
= skl_max_scale(intel_crtc
, crtc_state
);
13019 can_position
= true;
13022 ret
= drm_plane_helper_check_update(plane
, crtc
, fb
,
13026 can_position
, true,
13031 if (intel_crtc
->active
) {
13032 struct intel_plane_state
*old_state
=
13033 to_intel_plane_state(plane
->state
);
13035 intel_crtc
->atomic
.wait_for_flips
= true;
13038 * FBC does not work on some platforms for rotated
13039 * planes, so disable it when rotation is not 0 and
13040 * update it when rotation is set back to 0.
13042 * FIXME: This is redundant with the fbc update done in
13043 * the primary plane enable function except that that
13044 * one is done too late. We eventually need to unify
13047 if (state
->visible
&&
13048 INTEL_INFO(dev
)->gen
<= 4 && !IS_G4X(dev
) &&
13049 dev_priv
->fbc
.crtc
== intel_crtc
&&
13050 state
->base
.rotation
!= BIT(DRM_ROTATE_0
)) {
13051 intel_crtc
->atomic
.disable_fbc
= true;
13054 if (state
->visible
&& !old_state
->visible
) {
13056 * BDW signals flip done immediately if the plane
13057 * is disabled, even if the plane enable is already
13058 * armed to occur at the next vblank :(
13060 if (IS_BROADWELL(dev
))
13061 intel_crtc
->atomic
.wait_vblank
= true;
13064 intel_crtc
->atomic
.fb_bits
|=
13065 INTEL_FRONTBUFFER_PRIMARY(intel_crtc
->pipe
);
13067 intel_crtc
->atomic
.update_fbc
= true;
13069 if (intel_wm_need_update(plane
, &state
->base
))
13070 intel_crtc
->atomic
.update_wm
= true;
13073 if (INTEL_INFO(dev
)->gen
>= 9) {
13074 ret
= skl_update_scaler_users(intel_crtc
, crtc_state
,
13075 to_intel_plane(plane
), state
, 0);
13084 intel_commit_primary_plane(struct drm_plane
*plane
,
13085 struct intel_plane_state
*state
)
13087 struct drm_crtc
*crtc
= state
->base
.crtc
;
13088 struct drm_framebuffer
*fb
= state
->base
.fb
;
13089 struct drm_device
*dev
= plane
->dev
;
13090 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13091 struct intel_crtc
*intel_crtc
;
13092 struct drm_rect
*src
= &state
->src
;
13094 crtc
= crtc
? crtc
: plane
->crtc
;
13095 intel_crtc
= to_intel_crtc(crtc
);
13098 crtc
->x
= src
->x1
>> 16;
13099 crtc
->y
= src
->y1
>> 16;
13101 if (intel_crtc
->active
) {
13102 if (state
->visible
)
13103 /* FIXME: kill this fastboot hack */
13104 intel_update_pipe_size(intel_crtc
);
13106 dev_priv
->display
.update_primary_plane(crtc
, plane
->fb
,
13112 intel_disable_primary_plane(struct drm_plane
*plane
,
13113 struct drm_crtc
*crtc
,
13116 struct drm_device
*dev
= plane
->dev
;
13117 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13119 dev_priv
->display
.update_primary_plane(crtc
, NULL
, 0, 0);
13122 static void intel_begin_crtc_commit(struct drm_crtc
*crtc
)
13124 struct drm_device
*dev
= crtc
->dev
;
13125 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13126 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
13127 struct intel_plane
*intel_plane
;
13128 struct drm_plane
*p
;
13129 unsigned fb_bits
= 0;
13131 /* Track fb's for any planes being disabled */
13132 list_for_each_entry(p
, &dev
->mode_config
.plane_list
, head
) {
13133 intel_plane
= to_intel_plane(p
);
13135 if (intel_crtc
->atomic
.disabled_planes
&
13136 (1 << drm_plane_index(p
))) {
13138 case DRM_PLANE_TYPE_PRIMARY
:
13139 fb_bits
= INTEL_FRONTBUFFER_PRIMARY(intel_plane
->pipe
);
13141 case DRM_PLANE_TYPE_CURSOR
:
13142 fb_bits
= INTEL_FRONTBUFFER_CURSOR(intel_plane
->pipe
);
13144 case DRM_PLANE_TYPE_OVERLAY
:
13145 fb_bits
= INTEL_FRONTBUFFER_SPRITE(intel_plane
->pipe
);
13149 mutex_lock(&dev
->struct_mutex
);
13150 i915_gem_track_fb(intel_fb_obj(p
->fb
), NULL
, fb_bits
);
13151 mutex_unlock(&dev
->struct_mutex
);
13155 if (intel_crtc
->atomic
.wait_for_flips
)
13156 intel_crtc_wait_for_pending_flips(crtc
);
13158 if (intel_crtc
->atomic
.disable_fbc
)
13159 intel_fbc_disable(dev
);
13161 if (intel_crtc
->atomic
.pre_disable_primary
)
13162 intel_pre_disable_primary(crtc
);
13164 if (intel_crtc
->atomic
.update_wm
)
13165 intel_update_watermarks(crtc
);
13167 intel_runtime_pm_get(dev_priv
);
13169 /* Perform vblank evasion around commit operation */
13170 if (intel_crtc
->active
)
13171 intel_crtc
->atomic
.evade
=
13172 intel_pipe_update_start(intel_crtc
,
13173 &intel_crtc
->atomic
.start_vbl_count
);
13176 static void intel_finish_crtc_commit(struct drm_crtc
*crtc
)
13178 struct drm_device
*dev
= crtc
->dev
;
13179 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13180 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
13181 struct drm_plane
*p
;
13183 if (intel_crtc
->atomic
.evade
)
13184 intel_pipe_update_end(intel_crtc
,
13185 intel_crtc
->atomic
.start_vbl_count
);
13187 intel_runtime_pm_put(dev_priv
);
13189 if (intel_crtc
->atomic
.wait_vblank
)
13190 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
13192 intel_frontbuffer_flip(dev
, intel_crtc
->atomic
.fb_bits
);
13194 if (intel_crtc
->atomic
.update_fbc
) {
13195 mutex_lock(&dev
->struct_mutex
);
13196 intel_fbc_update(dev
);
13197 mutex_unlock(&dev
->struct_mutex
);
13200 if (intel_crtc
->atomic
.post_enable_primary
)
13201 intel_post_enable_primary(crtc
);
13203 drm_for_each_legacy_plane(p
, &dev
->mode_config
.plane_list
)
13204 if (intel_crtc
->atomic
.update_sprite_watermarks
& drm_plane_index(p
))
13205 intel_update_sprite_watermarks(p
, crtc
, 0, 0, 0,
13208 memset(&intel_crtc
->atomic
, 0, sizeof(intel_crtc
->atomic
));
13212 * intel_plane_destroy - destroy a plane
13213 * @plane: plane to destroy
13215 * Common destruction function for all types of planes (primary, cursor,
13218 void intel_plane_destroy(struct drm_plane
*plane
)
13220 struct intel_plane
*intel_plane
= to_intel_plane(plane
);
13221 drm_plane_cleanup(plane
);
13222 kfree(intel_plane
);
13225 const struct drm_plane_funcs intel_plane_funcs
= {
13226 .update_plane
= drm_atomic_helper_update_plane
,
13227 .disable_plane
= drm_atomic_helper_disable_plane
,
13228 .destroy
= intel_plane_destroy
,
13229 .set_property
= drm_atomic_helper_plane_set_property
,
13230 .atomic_get_property
= intel_plane_atomic_get_property
,
13231 .atomic_set_property
= intel_plane_atomic_set_property
,
13232 .atomic_duplicate_state
= intel_plane_duplicate_state
,
13233 .atomic_destroy_state
= intel_plane_destroy_state
,
13237 static struct drm_plane
*intel_primary_plane_create(struct drm_device
*dev
,
13240 struct intel_plane
*primary
;
13241 struct intel_plane_state
*state
;
13242 const uint32_t *intel_primary_formats
;
13245 primary
= kzalloc(sizeof(*primary
), GFP_KERNEL
);
13246 if (primary
== NULL
)
13249 state
= intel_create_plane_state(&primary
->base
);
13254 primary
->base
.state
= &state
->base
;
13256 primary
->can_scale
= false;
13257 primary
->max_downscale
= 1;
13258 if (INTEL_INFO(dev
)->gen
>= 9) {
13259 primary
->can_scale
= true;
13261 state
->scaler_id
= -1;
13262 primary
->pipe
= pipe
;
13263 primary
->plane
= pipe
;
13264 primary
->check_plane
= intel_check_primary_plane
;
13265 primary
->commit_plane
= intel_commit_primary_plane
;
13266 primary
->disable_plane
= intel_disable_primary_plane
;
13267 primary
->ckey
.flags
= I915_SET_COLORKEY_NONE
;
13268 if (HAS_FBC(dev
) && INTEL_INFO(dev
)->gen
< 4)
13269 primary
->plane
= !pipe
;
13271 if (INTEL_INFO(dev
)->gen
<= 3) {
13272 intel_primary_formats
= intel_primary_formats_gen2
;
13273 num_formats
= ARRAY_SIZE(intel_primary_formats_gen2
);
13275 intel_primary_formats
= intel_primary_formats_gen4
;
13276 num_formats
= ARRAY_SIZE(intel_primary_formats_gen4
);
13279 drm_universal_plane_init(dev
, &primary
->base
, 0,
13280 &intel_plane_funcs
,
13281 intel_primary_formats
, num_formats
,
13282 DRM_PLANE_TYPE_PRIMARY
);
13284 if (INTEL_INFO(dev
)->gen
>= 4)
13285 intel_create_rotation_property(dev
, primary
);
13287 drm_plane_helper_add(&primary
->base
, &intel_plane_helper_funcs
);
13289 return &primary
->base
;
13292 void intel_create_rotation_property(struct drm_device
*dev
, struct intel_plane
*plane
)
13294 if (!dev
->mode_config
.rotation_property
) {
13295 unsigned long flags
= BIT(DRM_ROTATE_0
) |
13296 BIT(DRM_ROTATE_180
);
13298 if (INTEL_INFO(dev
)->gen
>= 9)
13299 flags
|= BIT(DRM_ROTATE_90
) | BIT(DRM_ROTATE_270
);
13301 dev
->mode_config
.rotation_property
=
13302 drm_mode_create_rotation_property(dev
, flags
);
13304 if (dev
->mode_config
.rotation_property
)
13305 drm_object_attach_property(&plane
->base
.base
,
13306 dev
->mode_config
.rotation_property
,
13307 plane
->base
.state
->rotation
);
13311 intel_check_cursor_plane(struct drm_plane
*plane
,
13312 struct intel_plane_state
*state
)
13314 struct drm_crtc
*crtc
= state
->base
.crtc
;
13315 struct drm_device
*dev
= plane
->dev
;
13316 struct drm_framebuffer
*fb
= state
->base
.fb
;
13317 struct drm_rect
*dest
= &state
->dst
;
13318 struct drm_rect
*src
= &state
->src
;
13319 const struct drm_rect
*clip
= &state
->clip
;
13320 struct drm_i915_gem_object
*obj
= intel_fb_obj(fb
);
13321 struct intel_crtc
*intel_crtc
;
13325 crtc
= crtc
? crtc
: plane
->crtc
;
13326 intel_crtc
= to_intel_crtc(crtc
);
13328 ret
= drm_plane_helper_check_update(plane
, crtc
, fb
,
13330 DRM_PLANE_HELPER_NO_SCALING
,
13331 DRM_PLANE_HELPER_NO_SCALING
,
13332 true, true, &state
->visible
);
13337 /* if we want to turn off the cursor ignore width and height */
13341 /* Check for which cursor types we support */
13342 if (!cursor_size_ok(dev
, state
->base
.crtc_w
, state
->base
.crtc_h
)) {
13343 DRM_DEBUG("Cursor dimension %dx%d not supported\n",
13344 state
->base
.crtc_w
, state
->base
.crtc_h
);
13348 stride
= roundup_pow_of_two(state
->base
.crtc_w
) * 4;
13349 if (obj
->base
.size
< stride
* state
->base
.crtc_h
) {
13350 DRM_DEBUG_KMS("buffer is too small\n");
13354 if (fb
->modifier
[0] != DRM_FORMAT_MOD_NONE
) {
13355 DRM_DEBUG_KMS("cursor cannot be tiled\n");
13360 if (intel_crtc
->active
) {
13361 if (plane
->state
->crtc_w
!= state
->base
.crtc_w
)
13362 intel_crtc
->atomic
.update_wm
= true;
13364 intel_crtc
->atomic
.fb_bits
|=
13365 INTEL_FRONTBUFFER_CURSOR(intel_crtc
->pipe
);
13372 intel_disable_cursor_plane(struct drm_plane
*plane
,
13373 struct drm_crtc
*crtc
,
13376 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
13380 intel_crtc
->cursor_bo
= NULL
;
13381 intel_crtc
->cursor_addr
= 0;
13384 intel_crtc_update_cursor(crtc
, false);
13388 intel_commit_cursor_plane(struct drm_plane
*plane
,
13389 struct intel_plane_state
*state
)
13391 struct drm_crtc
*crtc
= state
->base
.crtc
;
13392 struct drm_device
*dev
= plane
->dev
;
13393 struct intel_crtc
*intel_crtc
;
13394 struct drm_i915_gem_object
*obj
= intel_fb_obj(state
->base
.fb
);
13397 crtc
= crtc
? crtc
: plane
->crtc
;
13398 intel_crtc
= to_intel_crtc(crtc
);
13400 plane
->fb
= state
->base
.fb
;
13401 crtc
->cursor_x
= state
->base
.crtc_x
;
13402 crtc
->cursor_y
= state
->base
.crtc_y
;
13404 if (intel_crtc
->cursor_bo
== obj
)
13409 else if (!INTEL_INFO(dev
)->cursor_needs_physical
)
13410 addr
= i915_gem_obj_ggtt_offset(obj
);
13412 addr
= obj
->phys_handle
->busaddr
;
13414 intel_crtc
->cursor_addr
= addr
;
13415 intel_crtc
->cursor_bo
= obj
;
13418 if (intel_crtc
->active
)
13419 intel_crtc_update_cursor(crtc
, state
->visible
);
13422 static struct drm_plane
*intel_cursor_plane_create(struct drm_device
*dev
,
13425 struct intel_plane
*cursor
;
13426 struct intel_plane_state
*state
;
13428 cursor
= kzalloc(sizeof(*cursor
), GFP_KERNEL
);
13429 if (cursor
== NULL
)
13432 state
= intel_create_plane_state(&cursor
->base
);
13437 cursor
->base
.state
= &state
->base
;
13439 cursor
->can_scale
= false;
13440 cursor
->max_downscale
= 1;
13441 cursor
->pipe
= pipe
;
13442 cursor
->plane
= pipe
;
13443 state
->scaler_id
= -1;
13444 cursor
->check_plane
= intel_check_cursor_plane
;
13445 cursor
->commit_plane
= intel_commit_cursor_plane
;
13446 cursor
->disable_plane
= intel_disable_cursor_plane
;
13448 drm_universal_plane_init(dev
, &cursor
->base
, 0,
13449 &intel_plane_funcs
,
13450 intel_cursor_formats
,
13451 ARRAY_SIZE(intel_cursor_formats
),
13452 DRM_PLANE_TYPE_CURSOR
);
13454 if (INTEL_INFO(dev
)->gen
>= 4) {
13455 if (!dev
->mode_config
.rotation_property
)
13456 dev
->mode_config
.rotation_property
=
13457 drm_mode_create_rotation_property(dev
,
13458 BIT(DRM_ROTATE_0
) |
13459 BIT(DRM_ROTATE_180
));
13460 if (dev
->mode_config
.rotation_property
)
13461 drm_object_attach_property(&cursor
->base
.base
,
13462 dev
->mode_config
.rotation_property
,
13463 state
->base
.rotation
);
13466 drm_plane_helper_add(&cursor
->base
, &intel_plane_helper_funcs
);
13468 return &cursor
->base
;
13471 static void skl_init_scalers(struct drm_device
*dev
, struct intel_crtc
*intel_crtc
,
13472 struct intel_crtc_state
*crtc_state
)
13475 struct intel_scaler
*intel_scaler
;
13476 struct intel_crtc_scaler_state
*scaler_state
= &crtc_state
->scaler_state
;
13478 for (i
= 0; i
< intel_crtc
->num_scalers
; i
++) {
13479 intel_scaler
= &scaler_state
->scalers
[i
];
13480 intel_scaler
->in_use
= 0;
13481 intel_scaler
->id
= i
;
13483 intel_scaler
->mode
= PS_SCALER_MODE_DYN
;
13486 scaler_state
->scaler_id
= -1;
13489 static void intel_crtc_init(struct drm_device
*dev
, int pipe
)
13491 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13492 struct intel_crtc
*intel_crtc
;
13493 struct intel_crtc_state
*crtc_state
= NULL
;
13494 struct drm_plane
*primary
= NULL
;
13495 struct drm_plane
*cursor
= NULL
;
13498 intel_crtc
= kzalloc(sizeof(*intel_crtc
), GFP_KERNEL
);
13499 if (intel_crtc
== NULL
)
13502 crtc_state
= kzalloc(sizeof(*crtc_state
), GFP_KERNEL
);
13505 intel_crtc_set_state(intel_crtc
, crtc_state
);
13506 crtc_state
->base
.crtc
= &intel_crtc
->base
;
13508 /* initialize shared scalers */
13509 if (INTEL_INFO(dev
)->gen
>= 9) {
13510 if (pipe
== PIPE_C
)
13511 intel_crtc
->num_scalers
= 1;
13513 intel_crtc
->num_scalers
= SKL_NUM_SCALERS
;
13515 skl_init_scalers(dev
, intel_crtc
, crtc_state
);
13518 primary
= intel_primary_plane_create(dev
, pipe
);
13522 cursor
= intel_cursor_plane_create(dev
, pipe
);
13526 ret
= drm_crtc_init_with_planes(dev
, &intel_crtc
->base
, primary
,
13527 cursor
, &intel_crtc_funcs
);
13531 drm_mode_crtc_set_gamma_size(&intel_crtc
->base
, 256);
13532 for (i
= 0; i
< 256; i
++) {
13533 intel_crtc
->lut_r
[i
] = i
;
13534 intel_crtc
->lut_g
[i
] = i
;
13535 intel_crtc
->lut_b
[i
] = i
;
13539 * On gen2/3 only plane A can do fbc, but the panel fitter and lvds port
13540 * is hooked to pipe B. Hence we want plane A feeding pipe B.
13542 intel_crtc
->pipe
= pipe
;
13543 intel_crtc
->plane
= pipe
;
13544 if (HAS_FBC(dev
) && INTEL_INFO(dev
)->gen
< 4) {
13545 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
13546 intel_crtc
->plane
= !pipe
;
13549 intel_crtc
->cursor_base
= ~0;
13550 intel_crtc
->cursor_cntl
= ~0;
13551 intel_crtc
->cursor_size
= ~0;
13553 BUG_ON(pipe
>= ARRAY_SIZE(dev_priv
->plane_to_crtc_mapping
) ||
13554 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] != NULL
);
13555 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] = &intel_crtc
->base
;
13556 dev_priv
->pipe_to_crtc_mapping
[intel_crtc
->pipe
] = &intel_crtc
->base
;
13558 INIT_WORK(&intel_crtc
->mmio_flip
.work
, intel_mmio_flip_work_func
);
13560 drm_crtc_helper_add(&intel_crtc
->base
, &intel_helper_funcs
);
13562 WARN_ON(drm_crtc_index(&intel_crtc
->base
) != intel_crtc
->pipe
);
13567 drm_plane_cleanup(primary
);
13569 drm_plane_cleanup(cursor
);
13574 enum pipe
intel_get_pipe_from_connector(struct intel_connector
*connector
)
13576 struct drm_encoder
*encoder
= connector
->base
.encoder
;
13577 struct drm_device
*dev
= connector
->base
.dev
;
13579 WARN_ON(!drm_modeset_is_locked(&dev
->mode_config
.connection_mutex
));
13581 if (!encoder
|| WARN_ON(!encoder
->crtc
))
13582 return INVALID_PIPE
;
13584 return to_intel_crtc(encoder
->crtc
)->pipe
;
13587 int intel_get_pipe_from_crtc_id(struct drm_device
*dev
, void *data
,
13588 struct drm_file
*file
)
13590 struct drm_i915_get_pipe_from_crtc_id
*pipe_from_crtc_id
= data
;
13591 struct drm_crtc
*drmmode_crtc
;
13592 struct intel_crtc
*crtc
;
13594 drmmode_crtc
= drm_crtc_find(dev
, pipe_from_crtc_id
->crtc_id
);
13596 if (!drmmode_crtc
) {
13597 DRM_ERROR("no such CRTC id\n");
13601 crtc
= to_intel_crtc(drmmode_crtc
);
13602 pipe_from_crtc_id
->pipe
= crtc
->pipe
;
13607 static int intel_encoder_clones(struct intel_encoder
*encoder
)
13609 struct drm_device
*dev
= encoder
->base
.dev
;
13610 struct intel_encoder
*source_encoder
;
13611 int index_mask
= 0;
13614 for_each_intel_encoder(dev
, source_encoder
) {
13615 if (encoders_cloneable(encoder
, source_encoder
))
13616 index_mask
|= (1 << entry
);
13624 static bool has_edp_a(struct drm_device
*dev
)
13626 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13628 if (!IS_MOBILE(dev
))
13631 if ((I915_READ(DP_A
) & DP_DETECTED
) == 0)
13634 if (IS_GEN5(dev
) && (I915_READ(FUSE_STRAP
) & ILK_eDP_A_DISABLE
))
13640 static bool intel_crt_present(struct drm_device
*dev
)
13642 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13644 if (INTEL_INFO(dev
)->gen
>= 9)
13647 if (IS_HSW_ULT(dev
) || IS_BDW_ULT(dev
))
13650 if (IS_CHERRYVIEW(dev
))
13653 if (IS_VALLEYVIEW(dev
) && !dev_priv
->vbt
.int_crt_support
)
13659 static void intel_setup_outputs(struct drm_device
*dev
)
13661 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
13662 struct intel_encoder
*encoder
;
13663 bool dpd_is_edp
= false;
13665 intel_lvds_init(dev
);
13667 if (intel_crt_present(dev
))
13668 intel_crt_init(dev
);
13670 if (IS_BROXTON(dev
)) {
13672 * FIXME: Broxton doesn't support port detection via the
13673 * DDI_BUF_CTL_A or SFUSE_STRAP registers, find another way to
13674 * detect the ports.
13676 intel_ddi_init(dev
, PORT_A
);
13677 intel_ddi_init(dev
, PORT_B
);
13678 intel_ddi_init(dev
, PORT_C
);
13679 } else if (HAS_DDI(dev
)) {
13683 * Haswell uses DDI functions to detect digital outputs.
13684 * On SKL pre-D0 the strap isn't connected, so we assume
13687 found
= I915_READ(DDI_BUF_CTL_A
) & DDI_INIT_DISPLAY_DETECTED
;
13688 /* WaIgnoreDDIAStrap: skl */
13690 (IS_SKYLAKE(dev
) && INTEL_REVID(dev
) < SKL_REVID_D0
))
13691 intel_ddi_init(dev
, PORT_A
);
13693 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
13695 found
= I915_READ(SFUSE_STRAP
);
13697 if (found
& SFUSE_STRAP_DDIB_DETECTED
)
13698 intel_ddi_init(dev
, PORT_B
);
13699 if (found
& SFUSE_STRAP_DDIC_DETECTED
)
13700 intel_ddi_init(dev
, PORT_C
);
13701 if (found
& SFUSE_STRAP_DDID_DETECTED
)
13702 intel_ddi_init(dev
, PORT_D
);
13703 } else if (HAS_PCH_SPLIT(dev
)) {
13705 dpd_is_edp
= intel_dp_is_edp(dev
, PORT_D
);
13707 if (has_edp_a(dev
))
13708 intel_dp_init(dev
, DP_A
, PORT_A
);
13710 if (I915_READ(PCH_HDMIB
) & SDVO_DETECTED
) {
13711 /* PCH SDVOB multiplex with HDMIB */
13712 found
= intel_sdvo_init(dev
, PCH_SDVOB
, true);
13714 intel_hdmi_init(dev
, PCH_HDMIB
, PORT_B
);
13715 if (!found
&& (I915_READ(PCH_DP_B
) & DP_DETECTED
))
13716 intel_dp_init(dev
, PCH_DP_B
, PORT_B
);
13719 if (I915_READ(PCH_HDMIC
) & SDVO_DETECTED
)
13720 intel_hdmi_init(dev
, PCH_HDMIC
, PORT_C
);
13722 if (!dpd_is_edp
&& I915_READ(PCH_HDMID
) & SDVO_DETECTED
)
13723 intel_hdmi_init(dev
, PCH_HDMID
, PORT_D
);
13725 if (I915_READ(PCH_DP_C
) & DP_DETECTED
)
13726 intel_dp_init(dev
, PCH_DP_C
, PORT_C
);
13728 if (I915_READ(PCH_DP_D
) & DP_DETECTED
)
13729 intel_dp_init(dev
, PCH_DP_D
, PORT_D
);
13730 } else if (IS_VALLEYVIEW(dev
)) {
13732 * The DP_DETECTED bit is the latched state of the DDC
13733 * SDA pin at boot. However since eDP doesn't require DDC
13734 * (no way to plug in a DP->HDMI dongle) the DDC pins for
13735 * eDP ports may have been muxed to an alternate function.
13736 * Thus we can't rely on the DP_DETECTED bit alone to detect
13737 * eDP ports. Consult the VBT as well as DP_DETECTED to
13738 * detect eDP ports.
13740 if (I915_READ(VLV_DISPLAY_BASE
+ GEN4_HDMIB
) & SDVO_DETECTED
&&
13741 !intel_dp_is_edp(dev
, PORT_B
))
13742 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ GEN4_HDMIB
,
13744 if (I915_READ(VLV_DISPLAY_BASE
+ DP_B
) & DP_DETECTED
||
13745 intel_dp_is_edp(dev
, PORT_B
))
13746 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_B
, PORT_B
);
13748 if (I915_READ(VLV_DISPLAY_BASE
+ GEN4_HDMIC
) & SDVO_DETECTED
&&
13749 !intel_dp_is_edp(dev
, PORT_C
))
13750 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ GEN4_HDMIC
,
13752 if (I915_READ(VLV_DISPLAY_BASE
+ DP_C
) & DP_DETECTED
||
13753 intel_dp_is_edp(dev
, PORT_C
))
13754 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_C
, PORT_C
);
13756 if (IS_CHERRYVIEW(dev
)) {
13757 if (I915_READ(VLV_DISPLAY_BASE
+ CHV_HDMID
) & SDVO_DETECTED
)
13758 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ CHV_HDMID
,
13760 /* eDP not supported on port D, so don't check VBT */
13761 if (I915_READ(VLV_DISPLAY_BASE
+ DP_D
) & DP_DETECTED
)
13762 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_D
, PORT_D
);
13765 intel_dsi_init(dev
);
13766 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev
)) {
13767 bool found
= false;
13769 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
13770 DRM_DEBUG_KMS("probing SDVOB\n");
13771 found
= intel_sdvo_init(dev
, GEN3_SDVOB
, true);
13772 if (!found
&& SUPPORTS_INTEGRATED_HDMI(dev
)) {
13773 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
13774 intel_hdmi_init(dev
, GEN4_HDMIB
, PORT_B
);
13777 if (!found
&& SUPPORTS_INTEGRATED_DP(dev
))
13778 intel_dp_init(dev
, DP_B
, PORT_B
);
13781 /* Before G4X SDVOC doesn't have its own detect register */
13783 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
13784 DRM_DEBUG_KMS("probing SDVOC\n");
13785 found
= intel_sdvo_init(dev
, GEN3_SDVOC
, false);
13788 if (!found
&& (I915_READ(GEN3_SDVOC
) & SDVO_DETECTED
)) {
13790 if (SUPPORTS_INTEGRATED_HDMI(dev
)) {
13791 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
13792 intel_hdmi_init(dev
, GEN4_HDMIC
, PORT_C
);
13794 if (SUPPORTS_INTEGRATED_DP(dev
))
13795 intel_dp_init(dev
, DP_C
, PORT_C
);
13798 if (SUPPORTS_INTEGRATED_DP(dev
) &&
13799 (I915_READ(DP_D
) & DP_DETECTED
))
13800 intel_dp_init(dev
, DP_D
, PORT_D
);
13801 } else if (IS_GEN2(dev
))
13802 intel_dvo_init(dev
);
13804 if (SUPPORTS_TV(dev
))
13805 intel_tv_init(dev
);
13807 intel_psr_init(dev
);
13809 for_each_intel_encoder(dev
, encoder
) {
13810 encoder
->base
.possible_crtcs
= encoder
->crtc_mask
;
13811 encoder
->base
.possible_clones
=
13812 intel_encoder_clones(encoder
);
13815 intel_init_pch_refclk(dev
);
13817 drm_helper_move_panel_connectors_to_head(dev
);
13820 static void intel_user_framebuffer_destroy(struct drm_framebuffer
*fb
)
13822 struct drm_device
*dev
= fb
->dev
;
13823 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
13825 drm_framebuffer_cleanup(fb
);
13826 mutex_lock(&dev
->struct_mutex
);
13827 WARN_ON(!intel_fb
->obj
->framebuffer_references
--);
13828 drm_gem_object_unreference(&intel_fb
->obj
->base
);
13829 mutex_unlock(&dev
->struct_mutex
);
13833 static int intel_user_framebuffer_create_handle(struct drm_framebuffer
*fb
,
13834 struct drm_file
*file
,
13835 unsigned int *handle
)
13837 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
13838 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
13840 return drm_gem_handle_create(file
, &obj
->base
, handle
);
13843 static const struct drm_framebuffer_funcs intel_fb_funcs
= {
13844 .destroy
= intel_user_framebuffer_destroy
,
13845 .create_handle
= intel_user_framebuffer_create_handle
,
13849 u32
intel_fb_pitch_limit(struct drm_device
*dev
, uint64_t fb_modifier
,
13850 uint32_t pixel_format
)
13852 u32 gen
= INTEL_INFO(dev
)->gen
;
13855 /* "The stride in bytes must not exceed the of the size of 8K
13856 * pixels and 32K bytes."
13858 return min(8192*drm_format_plane_cpp(pixel_format
, 0), 32768);
13859 } else if (gen
>= 5 && !IS_VALLEYVIEW(dev
)) {
13861 } else if (gen
>= 4) {
13862 if (fb_modifier
== I915_FORMAT_MOD_X_TILED
)
13866 } else if (gen
>= 3) {
13867 if (fb_modifier
== I915_FORMAT_MOD_X_TILED
)
13872 /* XXX DSPC is limited to 4k tiled */
13877 static int intel_framebuffer_init(struct drm_device
*dev
,
13878 struct intel_framebuffer
*intel_fb
,
13879 struct drm_mode_fb_cmd2
*mode_cmd
,
13880 struct drm_i915_gem_object
*obj
)
13882 unsigned int aligned_height
;
13884 u32 pitch_limit
, stride_alignment
;
13886 WARN_ON(!mutex_is_locked(&dev
->struct_mutex
));
13888 if (mode_cmd
->flags
& DRM_MODE_FB_MODIFIERS
) {
13889 /* Enforce that fb modifier and tiling mode match, but only for
13890 * X-tiled. This is needed for FBC. */
13891 if (!!(obj
->tiling_mode
== I915_TILING_X
) !=
13892 !!(mode_cmd
->modifier
[0] == I915_FORMAT_MOD_X_TILED
)) {
13893 DRM_DEBUG("tiling_mode doesn't match fb modifier\n");
13897 if (obj
->tiling_mode
== I915_TILING_X
)
13898 mode_cmd
->modifier
[0] = I915_FORMAT_MOD_X_TILED
;
13899 else if (obj
->tiling_mode
== I915_TILING_Y
) {
13900 DRM_DEBUG("No Y tiling for legacy addfb\n");
13905 /* Passed in modifier sanity checking. */
13906 switch (mode_cmd
->modifier
[0]) {
13907 case I915_FORMAT_MOD_Y_TILED
:
13908 case I915_FORMAT_MOD_Yf_TILED
:
13909 if (INTEL_INFO(dev
)->gen
< 9) {
13910 DRM_DEBUG("Unsupported tiling 0x%llx!\n",
13911 mode_cmd
->modifier
[0]);
13914 case DRM_FORMAT_MOD_NONE
:
13915 case I915_FORMAT_MOD_X_TILED
:
13918 DRM_DEBUG("Unsupported fb modifier 0x%llx!\n",
13919 mode_cmd
->modifier
[0]);
13923 stride_alignment
= intel_fb_stride_alignment(dev
, mode_cmd
->modifier
[0],
13924 mode_cmd
->pixel_format
);
13925 if (mode_cmd
->pitches
[0] & (stride_alignment
- 1)) {
13926 DRM_DEBUG("pitch (%d) must be at least %u byte aligned\n",
13927 mode_cmd
->pitches
[0], stride_alignment
);
13931 pitch_limit
= intel_fb_pitch_limit(dev
, mode_cmd
->modifier
[0],
13932 mode_cmd
->pixel_format
);
13933 if (mode_cmd
->pitches
[0] > pitch_limit
) {
13934 DRM_DEBUG("%s pitch (%u) must be at less than %d\n",
13935 mode_cmd
->modifier
[0] != DRM_FORMAT_MOD_NONE
?
13936 "tiled" : "linear",
13937 mode_cmd
->pitches
[0], pitch_limit
);
13941 if (mode_cmd
->modifier
[0] == I915_FORMAT_MOD_X_TILED
&&
13942 mode_cmd
->pitches
[0] != obj
->stride
) {
13943 DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n",
13944 mode_cmd
->pitches
[0], obj
->stride
);
13948 /* Reject formats not supported by any plane early. */
13949 switch (mode_cmd
->pixel_format
) {
13950 case DRM_FORMAT_C8
:
13951 case DRM_FORMAT_RGB565
:
13952 case DRM_FORMAT_XRGB8888
:
13953 case DRM_FORMAT_ARGB8888
:
13955 case DRM_FORMAT_XRGB1555
:
13956 case DRM_FORMAT_ARGB1555
:
13957 if (INTEL_INFO(dev
)->gen
> 3) {
13958 DRM_DEBUG("unsupported pixel format: %s\n",
13959 drm_get_format_name(mode_cmd
->pixel_format
));
13963 case DRM_FORMAT_XBGR8888
:
13964 case DRM_FORMAT_ABGR8888
:
13965 case DRM_FORMAT_XRGB2101010
:
13966 case DRM_FORMAT_ARGB2101010
:
13967 case DRM_FORMAT_XBGR2101010
:
13968 case DRM_FORMAT_ABGR2101010
:
13969 if (INTEL_INFO(dev
)->gen
< 4) {
13970 DRM_DEBUG("unsupported pixel format: %s\n",
13971 drm_get_format_name(mode_cmd
->pixel_format
));
13975 case DRM_FORMAT_YUYV
:
13976 case DRM_FORMAT_UYVY
:
13977 case DRM_FORMAT_YVYU
:
13978 case DRM_FORMAT_VYUY
:
13979 if (INTEL_INFO(dev
)->gen
< 5) {
13980 DRM_DEBUG("unsupported pixel format: %s\n",
13981 drm_get_format_name(mode_cmd
->pixel_format
));
13986 DRM_DEBUG("unsupported pixel format: %s\n",
13987 drm_get_format_name(mode_cmd
->pixel_format
));
13991 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
13992 if (mode_cmd
->offsets
[0] != 0)
13995 aligned_height
= intel_fb_align_height(dev
, mode_cmd
->height
,
13996 mode_cmd
->pixel_format
,
13997 mode_cmd
->modifier
[0]);
13998 /* FIXME drm helper for size checks (especially planar formats)? */
13999 if (obj
->base
.size
< aligned_height
* mode_cmd
->pitches
[0])
14002 drm_helper_mode_fill_fb_struct(&intel_fb
->base
, mode_cmd
);
14003 intel_fb
->obj
= obj
;
14004 intel_fb
->obj
->framebuffer_references
++;
14006 ret
= drm_framebuffer_init(dev
, &intel_fb
->base
, &intel_fb_funcs
);
14008 DRM_ERROR("framebuffer init failed %d\n", ret
);
14015 static struct drm_framebuffer
*
14016 intel_user_framebuffer_create(struct drm_device
*dev
,
14017 struct drm_file
*filp
,
14018 struct drm_mode_fb_cmd2
*mode_cmd
)
14020 struct drm_i915_gem_object
*obj
;
14022 obj
= to_intel_bo(drm_gem_object_lookup(dev
, filp
,
14023 mode_cmd
->handles
[0]));
14024 if (&obj
->base
== NULL
)
14025 return ERR_PTR(-ENOENT
);
14027 return intel_framebuffer_create(dev
, mode_cmd
, obj
);
14030 #ifndef CONFIG_DRM_I915_FBDEV
14031 static inline void intel_fbdev_output_poll_changed(struct drm_device
*dev
)
14036 static const struct drm_mode_config_funcs intel_mode_funcs
= {
14037 .fb_create
= intel_user_framebuffer_create
,
14038 .output_poll_changed
= intel_fbdev_output_poll_changed
,
14039 .atomic_check
= intel_atomic_check
,
14040 .atomic_commit
= intel_atomic_commit
,
14043 /* Set up chip specific display functions */
14044 static void intel_init_display(struct drm_device
*dev
)
14046 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14048 if (HAS_PCH_SPLIT(dev
) || IS_G4X(dev
))
14049 dev_priv
->display
.find_dpll
= g4x_find_best_dpll
;
14050 else if (IS_CHERRYVIEW(dev
))
14051 dev_priv
->display
.find_dpll
= chv_find_best_dpll
;
14052 else if (IS_VALLEYVIEW(dev
))
14053 dev_priv
->display
.find_dpll
= vlv_find_best_dpll
;
14054 else if (IS_PINEVIEW(dev
))
14055 dev_priv
->display
.find_dpll
= pnv_find_best_dpll
;
14057 dev_priv
->display
.find_dpll
= i9xx_find_best_dpll
;
14059 if (INTEL_INFO(dev
)->gen
>= 9) {
14060 dev_priv
->display
.get_pipe_config
= haswell_get_pipe_config
;
14061 dev_priv
->display
.get_initial_plane_config
=
14062 skylake_get_initial_plane_config
;
14063 dev_priv
->display
.crtc_compute_clock
=
14064 haswell_crtc_compute_clock
;
14065 dev_priv
->display
.crtc_enable
= haswell_crtc_enable
;
14066 dev_priv
->display
.crtc_disable
= haswell_crtc_disable
;
14067 dev_priv
->display
.off
= ironlake_crtc_off
;
14068 dev_priv
->display
.update_primary_plane
=
14069 skylake_update_primary_plane
;
14070 } else if (HAS_DDI(dev
)) {
14071 dev_priv
->display
.get_pipe_config
= haswell_get_pipe_config
;
14072 dev_priv
->display
.get_initial_plane_config
=
14073 ironlake_get_initial_plane_config
;
14074 dev_priv
->display
.crtc_compute_clock
=
14075 haswell_crtc_compute_clock
;
14076 dev_priv
->display
.crtc_enable
= haswell_crtc_enable
;
14077 dev_priv
->display
.crtc_disable
= haswell_crtc_disable
;
14078 dev_priv
->display
.off
= ironlake_crtc_off
;
14079 dev_priv
->display
.update_primary_plane
=
14080 ironlake_update_primary_plane
;
14081 } else if (HAS_PCH_SPLIT(dev
)) {
14082 dev_priv
->display
.get_pipe_config
= ironlake_get_pipe_config
;
14083 dev_priv
->display
.get_initial_plane_config
=
14084 ironlake_get_initial_plane_config
;
14085 dev_priv
->display
.crtc_compute_clock
=
14086 ironlake_crtc_compute_clock
;
14087 dev_priv
->display
.crtc_enable
= ironlake_crtc_enable
;
14088 dev_priv
->display
.crtc_disable
= ironlake_crtc_disable
;
14089 dev_priv
->display
.off
= ironlake_crtc_off
;
14090 dev_priv
->display
.update_primary_plane
=
14091 ironlake_update_primary_plane
;
14092 } else if (IS_VALLEYVIEW(dev
)) {
14093 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
14094 dev_priv
->display
.get_initial_plane_config
=
14095 i9xx_get_initial_plane_config
;
14096 dev_priv
->display
.crtc_compute_clock
= i9xx_crtc_compute_clock
;
14097 dev_priv
->display
.crtc_enable
= valleyview_crtc_enable
;
14098 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
14099 dev_priv
->display
.off
= i9xx_crtc_off
;
14100 dev_priv
->display
.update_primary_plane
=
14101 i9xx_update_primary_plane
;
14103 dev_priv
->display
.get_pipe_config
= i9xx_get_pipe_config
;
14104 dev_priv
->display
.get_initial_plane_config
=
14105 i9xx_get_initial_plane_config
;
14106 dev_priv
->display
.crtc_compute_clock
= i9xx_crtc_compute_clock
;
14107 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
14108 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
14109 dev_priv
->display
.off
= i9xx_crtc_off
;
14110 dev_priv
->display
.update_primary_plane
=
14111 i9xx_update_primary_plane
;
14114 /* Returns the core display clock speed */
14115 if (IS_SKYLAKE(dev
))
14116 dev_priv
->display
.get_display_clock_speed
=
14117 skylake_get_display_clock_speed
;
14118 else if (IS_BROADWELL(dev
))
14119 dev_priv
->display
.get_display_clock_speed
=
14120 broadwell_get_display_clock_speed
;
14121 else if (IS_HASWELL(dev
))
14122 dev_priv
->display
.get_display_clock_speed
=
14123 haswell_get_display_clock_speed
;
14124 else if (IS_VALLEYVIEW(dev
))
14125 dev_priv
->display
.get_display_clock_speed
=
14126 valleyview_get_display_clock_speed
;
14127 else if (IS_GEN5(dev
))
14128 dev_priv
->display
.get_display_clock_speed
=
14129 ilk_get_display_clock_speed
;
14130 else if (IS_I945G(dev
) || IS_BROADWATER(dev
) ||
14131 IS_GEN6(dev
) || IS_IVYBRIDGE(dev
) || (IS_G33(dev
) && !IS_PINEVIEW_M(dev
)))
14132 dev_priv
->display
.get_display_clock_speed
=
14133 i945_get_display_clock_speed
;
14134 else if (IS_I915G(dev
))
14135 dev_priv
->display
.get_display_clock_speed
=
14136 i915_get_display_clock_speed
;
14137 else if (IS_I945GM(dev
) || IS_845G(dev
))
14138 dev_priv
->display
.get_display_clock_speed
=
14139 i9xx_misc_get_display_clock_speed
;
14140 else if (IS_PINEVIEW(dev
))
14141 dev_priv
->display
.get_display_clock_speed
=
14142 pnv_get_display_clock_speed
;
14143 else if (IS_I915GM(dev
))
14144 dev_priv
->display
.get_display_clock_speed
=
14145 i915gm_get_display_clock_speed
;
14146 else if (IS_I865G(dev
))
14147 dev_priv
->display
.get_display_clock_speed
=
14148 i865_get_display_clock_speed
;
14149 else if (IS_I85X(dev
))
14150 dev_priv
->display
.get_display_clock_speed
=
14151 i855_get_display_clock_speed
;
14152 else /* 852, 830 */
14153 dev_priv
->display
.get_display_clock_speed
=
14154 i830_get_display_clock_speed
;
14156 if (IS_GEN5(dev
)) {
14157 dev_priv
->display
.fdi_link_train
= ironlake_fdi_link_train
;
14158 } else if (IS_GEN6(dev
)) {
14159 dev_priv
->display
.fdi_link_train
= gen6_fdi_link_train
;
14160 } else if (IS_IVYBRIDGE(dev
)) {
14161 /* FIXME: detect B0+ stepping and use auto training */
14162 dev_priv
->display
.fdi_link_train
= ivb_manual_fdi_link_train
;
14163 } else if (IS_HASWELL(dev
) || IS_BROADWELL(dev
)) {
14164 dev_priv
->display
.fdi_link_train
= hsw_fdi_link_train
;
14165 } else if (IS_VALLEYVIEW(dev
)) {
14166 dev_priv
->display
.modeset_global_resources
=
14167 valleyview_modeset_global_resources
;
14168 } else if (IS_BROXTON(dev
)) {
14169 dev_priv
->display
.modeset_global_resources
=
14170 broxton_modeset_global_resources
;
14173 switch (INTEL_INFO(dev
)->gen
) {
14175 dev_priv
->display
.queue_flip
= intel_gen2_queue_flip
;
14179 dev_priv
->display
.queue_flip
= intel_gen3_queue_flip
;
14184 dev_priv
->display
.queue_flip
= intel_gen4_queue_flip
;
14188 dev_priv
->display
.queue_flip
= intel_gen6_queue_flip
;
14191 case 8: /* FIXME(BDW): Check that the gen8 RCS flip works. */
14192 dev_priv
->display
.queue_flip
= intel_gen7_queue_flip
;
14195 /* Drop through - unsupported since execlist only. */
14197 /* Default just returns -ENODEV to indicate unsupported */
14198 dev_priv
->display
.queue_flip
= intel_default_queue_flip
;
14201 intel_panel_init_backlight_funcs(dev
);
14203 mutex_init(&dev_priv
->pps_mutex
);
14207 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
14208 * resume, or other times. This quirk makes sure that's the case for
14209 * affected systems.
14211 static void quirk_pipea_force(struct drm_device
*dev
)
14213 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14215 dev_priv
->quirks
|= QUIRK_PIPEA_FORCE
;
14216 DRM_INFO("applying pipe a force quirk\n");
14219 static void quirk_pipeb_force(struct drm_device
*dev
)
14221 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14223 dev_priv
->quirks
|= QUIRK_PIPEB_FORCE
;
14224 DRM_INFO("applying pipe b force quirk\n");
14228 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
14230 static void quirk_ssc_force_disable(struct drm_device
*dev
)
14232 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14233 dev_priv
->quirks
|= QUIRK_LVDS_SSC_DISABLE
;
14234 DRM_INFO("applying lvds SSC disable quirk\n");
14238 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
14241 static void quirk_invert_brightness(struct drm_device
*dev
)
14243 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14244 dev_priv
->quirks
|= QUIRK_INVERT_BRIGHTNESS
;
14245 DRM_INFO("applying inverted panel brightness quirk\n");
14248 /* Some VBT's incorrectly indicate no backlight is present */
14249 static void quirk_backlight_present(struct drm_device
*dev
)
14251 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14252 dev_priv
->quirks
|= QUIRK_BACKLIGHT_PRESENT
;
14253 DRM_INFO("applying backlight present quirk\n");
14256 struct intel_quirk
{
14258 int subsystem_vendor
;
14259 int subsystem_device
;
14260 void (*hook
)(struct drm_device
*dev
);
14263 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
14264 struct intel_dmi_quirk
{
14265 void (*hook
)(struct drm_device
*dev
);
14266 const struct dmi_system_id (*dmi_id_list
)[];
14269 static int intel_dmi_reverse_brightness(const struct dmi_system_id
*id
)
14271 DRM_INFO("Backlight polarity reversed on %s\n", id
->ident
);
14275 static const struct intel_dmi_quirk intel_dmi_quirks
[] = {
14277 .dmi_id_list
= &(const struct dmi_system_id
[]) {
14279 .callback
= intel_dmi_reverse_brightness
,
14280 .ident
= "NCR Corporation",
14281 .matches
= {DMI_MATCH(DMI_SYS_VENDOR
, "NCR Corporation"),
14282 DMI_MATCH(DMI_PRODUCT_NAME
, ""),
14285 { } /* terminating entry */
14287 .hook
= quirk_invert_brightness
,
14291 static struct intel_quirk intel_quirks
[] = {
14292 /* HP Mini needs pipe A force quirk (LP: #322104) */
14293 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force
},
14295 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
14296 { 0x2592, 0x1179, 0x0001, quirk_pipea_force
},
14298 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
14299 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force
},
14301 /* 830 needs to leave pipe A & dpll A up */
14302 { 0x3577, PCI_ANY_ID
, PCI_ANY_ID
, quirk_pipea_force
},
14304 /* 830 needs to leave pipe B & dpll B up */
14305 { 0x3577, PCI_ANY_ID
, PCI_ANY_ID
, quirk_pipeb_force
},
14307 /* Lenovo U160 cannot use SSC on LVDS */
14308 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable
},
14310 /* Sony Vaio Y cannot use SSC on LVDS */
14311 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable
},
14313 /* Acer Aspire 5734Z must invert backlight brightness */
14314 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness
},
14316 /* Acer/eMachines G725 */
14317 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness
},
14319 /* Acer/eMachines e725 */
14320 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness
},
14322 /* Acer/Packard Bell NCL20 */
14323 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness
},
14325 /* Acer Aspire 4736Z */
14326 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness
},
14328 /* Acer Aspire 5336 */
14329 { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness
},
14331 /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */
14332 { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present
},
14334 /* Acer C720 Chromebook (Core i3 4005U) */
14335 { 0x0a16, 0x1025, 0x0a11, quirk_backlight_present
},
14337 /* Apple Macbook 2,1 (Core 2 T7400) */
14338 { 0x27a2, 0x8086, 0x7270, quirk_backlight_present
},
14340 /* Toshiba CB35 Chromebook (Celeron 2955U) */
14341 { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present
},
14343 /* HP Chromebook 14 (Celeron 2955U) */
14344 { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present
},
14346 /* Dell Chromebook 11 */
14347 { 0x0a06, 0x1028, 0x0a35, quirk_backlight_present
},
14350 static void intel_init_quirks(struct drm_device
*dev
)
14352 struct pci_dev
*d
= dev
->pdev
;
14355 for (i
= 0; i
< ARRAY_SIZE(intel_quirks
); i
++) {
14356 struct intel_quirk
*q
= &intel_quirks
[i
];
14358 if (d
->device
== q
->device
&&
14359 (d
->subsystem_vendor
== q
->subsystem_vendor
||
14360 q
->subsystem_vendor
== PCI_ANY_ID
) &&
14361 (d
->subsystem_device
== q
->subsystem_device
||
14362 q
->subsystem_device
== PCI_ANY_ID
))
14365 for (i
= 0; i
< ARRAY_SIZE(intel_dmi_quirks
); i
++) {
14366 if (dmi_check_system(*intel_dmi_quirks
[i
].dmi_id_list
) != 0)
14367 intel_dmi_quirks
[i
].hook(dev
);
14371 /* Disable the VGA plane that we never use */
14372 static void i915_disable_vga(struct drm_device
*dev
)
14374 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14376 u32 vga_reg
= i915_vgacntrl_reg(dev
);
14378 /* WaEnableVGAAccessThroughIOPort:ctg,elk,ilk,snb,ivb,vlv,hsw */
14379 vga_get_uninterruptible(dev
->pdev
, VGA_RSRC_LEGACY_IO
);
14380 outb(SR01
, VGA_SR_INDEX
);
14381 sr1
= inb(VGA_SR_DATA
);
14382 outb(sr1
| 1<<5, VGA_SR_DATA
);
14383 vga_put(dev
->pdev
, VGA_RSRC_LEGACY_IO
);
14386 I915_WRITE(vga_reg
, VGA_DISP_DISABLE
);
14387 POSTING_READ(vga_reg
);
14390 void intel_modeset_init_hw(struct drm_device
*dev
)
14392 intel_prepare_ddi(dev
);
14394 if (IS_VALLEYVIEW(dev
))
14395 vlv_update_cdclk(dev
);
14397 intel_init_clock_gating(dev
);
14399 intel_enable_gt_powersave(dev
);
14402 void intel_modeset_init(struct drm_device
*dev
)
14404 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14407 struct intel_crtc
*crtc
;
14409 drm_mode_config_init(dev
);
14411 dev
->mode_config
.min_width
= 0;
14412 dev
->mode_config
.min_height
= 0;
14414 dev
->mode_config
.preferred_depth
= 24;
14415 dev
->mode_config
.prefer_shadow
= 1;
14417 dev
->mode_config
.allow_fb_modifiers
= true;
14419 dev
->mode_config
.funcs
= &intel_mode_funcs
;
14421 intel_init_quirks(dev
);
14423 intel_init_pm(dev
);
14425 if (INTEL_INFO(dev
)->num_pipes
== 0)
14428 intel_init_display(dev
);
14429 intel_init_audio(dev
);
14431 if (IS_GEN2(dev
)) {
14432 dev
->mode_config
.max_width
= 2048;
14433 dev
->mode_config
.max_height
= 2048;
14434 } else if (IS_GEN3(dev
)) {
14435 dev
->mode_config
.max_width
= 4096;
14436 dev
->mode_config
.max_height
= 4096;
14438 dev
->mode_config
.max_width
= 8192;
14439 dev
->mode_config
.max_height
= 8192;
14442 if (IS_845G(dev
) || IS_I865G(dev
)) {
14443 dev
->mode_config
.cursor_width
= IS_845G(dev
) ? 64 : 512;
14444 dev
->mode_config
.cursor_height
= 1023;
14445 } else if (IS_GEN2(dev
)) {
14446 dev
->mode_config
.cursor_width
= GEN2_CURSOR_WIDTH
;
14447 dev
->mode_config
.cursor_height
= GEN2_CURSOR_HEIGHT
;
14449 dev
->mode_config
.cursor_width
= MAX_CURSOR_WIDTH
;
14450 dev
->mode_config
.cursor_height
= MAX_CURSOR_HEIGHT
;
14453 dev
->mode_config
.fb_base
= dev_priv
->gtt
.mappable_base
;
14455 DRM_DEBUG_KMS("%d display pipe%s available.\n",
14456 INTEL_INFO(dev
)->num_pipes
,
14457 INTEL_INFO(dev
)->num_pipes
> 1 ? "s" : "");
14459 for_each_pipe(dev_priv
, pipe
) {
14460 intel_crtc_init(dev
, pipe
);
14461 for_each_sprite(dev_priv
, pipe
, sprite
) {
14462 ret
= intel_plane_init(dev
, pipe
, sprite
);
14464 DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n",
14465 pipe_name(pipe
), sprite_name(pipe
, sprite
), ret
);
14469 intel_init_dpio(dev
);
14471 intel_shared_dpll_init(dev
);
14473 /* Just disable it once at startup */
14474 i915_disable_vga(dev
);
14475 intel_setup_outputs(dev
);
14477 /* Just in case the BIOS is doing something questionable. */
14478 intel_fbc_disable(dev
);
14480 drm_modeset_lock_all(dev
);
14481 intel_modeset_setup_hw_state(dev
, false);
14482 drm_modeset_unlock_all(dev
);
14484 for_each_intel_crtc(dev
, crtc
) {
14489 * Note that reserving the BIOS fb up front prevents us
14490 * from stuffing other stolen allocations like the ring
14491 * on top. This prevents some ugliness at boot time, and
14492 * can even allow for smooth boot transitions if the BIOS
14493 * fb is large enough for the active pipe configuration.
14495 if (dev_priv
->display
.get_initial_plane_config
) {
14496 dev_priv
->display
.get_initial_plane_config(crtc
,
14497 &crtc
->plane_config
);
14499 * If the fb is shared between multiple heads, we'll
14500 * just get the first one.
14502 intel_find_initial_plane_obj(crtc
, &crtc
->plane_config
);
14507 static void intel_enable_pipe_a(struct drm_device
*dev
)
14509 struct intel_connector
*connector
;
14510 struct drm_connector
*crt
= NULL
;
14511 struct intel_load_detect_pipe load_detect_temp
;
14512 struct drm_modeset_acquire_ctx
*ctx
= dev
->mode_config
.acquire_ctx
;
14514 /* We can't just switch on the pipe A, we need to set things up with a
14515 * proper mode and output configuration. As a gross hack, enable pipe A
14516 * by enabling the load detect pipe once. */
14517 for_each_intel_connector(dev
, connector
) {
14518 if (connector
->encoder
->type
== INTEL_OUTPUT_ANALOG
) {
14519 crt
= &connector
->base
;
14527 if (intel_get_load_detect_pipe(crt
, NULL
, &load_detect_temp
, ctx
))
14528 intel_release_load_detect_pipe(crt
, &load_detect_temp
, ctx
);
14532 intel_check_plane_mapping(struct intel_crtc
*crtc
)
14534 struct drm_device
*dev
= crtc
->base
.dev
;
14535 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14538 if (INTEL_INFO(dev
)->num_pipes
== 1)
14541 reg
= DSPCNTR(!crtc
->plane
);
14542 val
= I915_READ(reg
);
14544 if ((val
& DISPLAY_PLANE_ENABLE
) &&
14545 (!!(val
& DISPPLANE_SEL_PIPE_MASK
) == crtc
->pipe
))
14551 static void intel_sanitize_crtc(struct intel_crtc
*crtc
)
14553 struct drm_device
*dev
= crtc
->base
.dev
;
14554 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14557 /* Clear any frame start delays used for debugging left by the BIOS */
14558 reg
= PIPECONF(crtc
->config
->cpu_transcoder
);
14559 I915_WRITE(reg
, I915_READ(reg
) & ~PIPECONF_FRAME_START_DELAY_MASK
);
14561 /* restore vblank interrupts to correct state */
14562 drm_crtc_vblank_reset(&crtc
->base
);
14563 if (crtc
->active
) {
14564 update_scanline_offset(crtc
);
14565 drm_crtc_vblank_on(&crtc
->base
);
14568 /* We need to sanitize the plane -> pipe mapping first because this will
14569 * disable the crtc (and hence change the state) if it is wrong. Note
14570 * that gen4+ has a fixed plane -> pipe mapping. */
14571 if (INTEL_INFO(dev
)->gen
< 4 && !intel_check_plane_mapping(crtc
)) {
14572 struct intel_connector
*connector
;
14575 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
14576 crtc
->base
.base
.id
);
14578 /* Pipe has the wrong plane attached and the plane is active.
14579 * Temporarily change the plane mapping and disable everything
14581 plane
= crtc
->plane
;
14582 to_intel_plane_state(crtc
->base
.primary
->state
)->visible
= true;
14583 crtc
->plane
= !plane
;
14584 intel_crtc_disable_planes(&crtc
->base
);
14585 dev_priv
->display
.crtc_disable(&crtc
->base
);
14586 crtc
->plane
= plane
;
14588 /* ... and break all links. */
14589 for_each_intel_connector(dev
, connector
) {
14590 if (connector
->encoder
->base
.crtc
!= &crtc
->base
)
14593 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
14594 connector
->base
.encoder
= NULL
;
14596 /* multiple connectors may have the same encoder:
14597 * handle them and break crtc link separately */
14598 for_each_intel_connector(dev
, connector
)
14599 if (connector
->encoder
->base
.crtc
== &crtc
->base
) {
14600 connector
->encoder
->base
.crtc
= NULL
;
14601 connector
->encoder
->connectors_active
= false;
14604 WARN_ON(crtc
->active
);
14605 crtc
->base
.state
->enable
= false;
14606 crtc
->base
.enabled
= false;
14609 if (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
&&
14610 crtc
->pipe
== PIPE_A
&& !crtc
->active
) {
14611 /* BIOS forgot to enable pipe A, this mostly happens after
14612 * resume. Force-enable the pipe to fix this, the update_dpms
14613 * call below we restore the pipe to the right state, but leave
14614 * the required bits on. */
14615 intel_enable_pipe_a(dev
);
14618 /* Adjust the state of the output pipe according to whether we
14619 * have active connectors/encoders. */
14620 intel_crtc_update_dpms(&crtc
->base
);
14622 if (crtc
->active
!= crtc
->base
.state
->enable
) {
14623 struct intel_encoder
*encoder
;
14625 /* This can happen either due to bugs in the get_hw_state
14626 * functions or because the pipe is force-enabled due to the
14628 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
14629 crtc
->base
.base
.id
,
14630 crtc
->base
.state
->enable
? "enabled" : "disabled",
14631 crtc
->active
? "enabled" : "disabled");
14633 crtc
->base
.state
->enable
= crtc
->active
;
14634 crtc
->base
.enabled
= crtc
->active
;
14636 /* Because we only establish the connector -> encoder ->
14637 * crtc links if something is active, this means the
14638 * crtc is now deactivated. Break the links. connector
14639 * -> encoder links are only establish when things are
14640 * actually up, hence no need to break them. */
14641 WARN_ON(crtc
->active
);
14643 for_each_encoder_on_crtc(dev
, &crtc
->base
, encoder
) {
14644 WARN_ON(encoder
->connectors_active
);
14645 encoder
->base
.crtc
= NULL
;
14649 if (crtc
->active
|| HAS_GMCH_DISPLAY(dev
)) {
14651 * We start out with underrun reporting disabled to avoid races.
14652 * For correct bookkeeping mark this on active crtcs.
14654 * Also on gmch platforms we dont have any hardware bits to
14655 * disable the underrun reporting. Which means we need to start
14656 * out with underrun reporting disabled also on inactive pipes,
14657 * since otherwise we'll complain about the garbage we read when
14658 * e.g. coming up after runtime pm.
14660 * No protection against concurrent access is required - at
14661 * worst a fifo underrun happens which also sets this to false.
14663 crtc
->cpu_fifo_underrun_disabled
= true;
14664 crtc
->pch_fifo_underrun_disabled
= true;
14668 static void intel_sanitize_encoder(struct intel_encoder
*encoder
)
14670 struct intel_connector
*connector
;
14671 struct drm_device
*dev
= encoder
->base
.dev
;
14673 /* We need to check both for a crtc link (meaning that the
14674 * encoder is active and trying to read from a pipe) and the
14675 * pipe itself being active. */
14676 bool has_active_crtc
= encoder
->base
.crtc
&&
14677 to_intel_crtc(encoder
->base
.crtc
)->active
;
14679 if (encoder
->connectors_active
&& !has_active_crtc
) {
14680 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
14681 encoder
->base
.base
.id
,
14682 encoder
->base
.name
);
14684 /* Connector is active, but has no active pipe. This is
14685 * fallout from our resume register restoring. Disable
14686 * the encoder manually again. */
14687 if (encoder
->base
.crtc
) {
14688 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
14689 encoder
->base
.base
.id
,
14690 encoder
->base
.name
);
14691 encoder
->disable(encoder
);
14692 if (encoder
->post_disable
)
14693 encoder
->post_disable(encoder
);
14695 encoder
->base
.crtc
= NULL
;
14696 encoder
->connectors_active
= false;
14698 /* Inconsistent output/port/pipe state happens presumably due to
14699 * a bug in one of the get_hw_state functions. Or someplace else
14700 * in our code, like the register restore mess on resume. Clamp
14701 * things to off as a safer default. */
14702 for_each_intel_connector(dev
, connector
) {
14703 if (connector
->encoder
!= encoder
)
14705 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
14706 connector
->base
.encoder
= NULL
;
14709 /* Enabled encoders without active connectors will be fixed in
14710 * the crtc fixup. */
14713 void i915_redisable_vga_power_on(struct drm_device
*dev
)
14715 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14716 u32 vga_reg
= i915_vgacntrl_reg(dev
);
14718 if (!(I915_READ(vga_reg
) & VGA_DISP_DISABLE
)) {
14719 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
14720 i915_disable_vga(dev
);
14724 void i915_redisable_vga(struct drm_device
*dev
)
14726 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14728 /* This function can be called both from intel_modeset_setup_hw_state or
14729 * at a very early point in our resume sequence, where the power well
14730 * structures are not yet restored. Since this function is at a very
14731 * paranoid "someone might have enabled VGA while we were not looking"
14732 * level, just check if the power well is enabled instead of trying to
14733 * follow the "don't touch the power well if we don't need it" policy
14734 * the rest of the driver uses. */
14735 if (!intel_display_power_is_enabled(dev_priv
, POWER_DOMAIN_VGA
))
14738 i915_redisable_vga_power_on(dev
);
14741 static bool primary_get_hw_state(struct intel_crtc
*crtc
)
14743 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
14748 return I915_READ(DSPCNTR(crtc
->plane
)) & DISPLAY_PLANE_ENABLE
;
14751 static void intel_modeset_readout_hw_state(struct drm_device
*dev
)
14753 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14755 struct intel_crtc
*crtc
;
14756 struct intel_encoder
*encoder
;
14757 struct intel_connector
*connector
;
14760 for_each_intel_crtc(dev
, crtc
) {
14761 struct drm_plane
*primary
= crtc
->base
.primary
;
14762 struct intel_plane_state
*plane_state
;
14764 memset(crtc
->config
, 0, sizeof(*crtc
->config
));
14766 crtc
->config
->quirks
|= PIPE_CONFIG_QUIRK_INHERITED_MODE
;
14768 crtc
->active
= dev_priv
->display
.get_pipe_config(crtc
,
14771 crtc
->base
.state
->enable
= crtc
->active
;
14772 crtc
->base
.enabled
= crtc
->active
;
14774 plane_state
= to_intel_plane_state(primary
->state
);
14775 plane_state
->visible
= primary_get_hw_state(crtc
);
14777 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
14778 crtc
->base
.base
.id
,
14779 crtc
->active
? "enabled" : "disabled");
14782 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
14783 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
14785 pll
->on
= pll
->get_hw_state(dev_priv
, pll
,
14786 &pll
->config
.hw_state
);
14788 pll
->config
.crtc_mask
= 0;
14789 for_each_intel_crtc(dev
, crtc
) {
14790 if (crtc
->active
&& intel_crtc_to_shared_dpll(crtc
) == pll
) {
14792 pll
->config
.crtc_mask
|= 1 << crtc
->pipe
;
14796 DRM_DEBUG_KMS("%s hw state readout: crtc_mask 0x%08x, on %i\n",
14797 pll
->name
, pll
->config
.crtc_mask
, pll
->on
);
14799 if (pll
->config
.crtc_mask
)
14800 intel_display_power_get(dev_priv
, POWER_DOMAIN_PLLS
);
14803 for_each_intel_encoder(dev
, encoder
) {
14806 if (encoder
->get_hw_state(encoder
, &pipe
)) {
14807 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
14808 encoder
->base
.crtc
= &crtc
->base
;
14809 encoder
->get_config(encoder
, crtc
->config
);
14811 encoder
->base
.crtc
= NULL
;
14814 encoder
->connectors_active
= false;
14815 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n",
14816 encoder
->base
.base
.id
,
14817 encoder
->base
.name
,
14818 encoder
->base
.crtc
? "enabled" : "disabled",
14822 for_each_intel_connector(dev
, connector
) {
14823 if (connector
->get_hw_state(connector
)) {
14824 connector
->base
.dpms
= DRM_MODE_DPMS_ON
;
14825 connector
->encoder
->connectors_active
= true;
14826 connector
->base
.encoder
= &connector
->encoder
->base
;
14828 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
14829 connector
->base
.encoder
= NULL
;
14831 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
14832 connector
->base
.base
.id
,
14833 connector
->base
.name
,
14834 connector
->base
.encoder
? "enabled" : "disabled");
14838 /* Scan out the current hw modeset state, sanitizes it and maps it into the drm
14839 * and i915 state tracking structures. */
14840 void intel_modeset_setup_hw_state(struct drm_device
*dev
,
14841 bool force_restore
)
14843 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14845 struct intel_crtc
*crtc
;
14846 struct intel_encoder
*encoder
;
14849 intel_modeset_readout_hw_state(dev
);
14852 * Now that we have the config, copy it to each CRTC struct
14853 * Note that this could go away if we move to using crtc_config
14854 * checking everywhere.
14856 for_each_intel_crtc(dev
, crtc
) {
14857 if (crtc
->active
&& i915
.fastboot
) {
14858 intel_mode_from_pipe_config(&crtc
->base
.mode
,
14860 DRM_DEBUG_KMS("[CRTC:%d] found active mode: ",
14861 crtc
->base
.base
.id
);
14862 drm_mode_debug_printmodeline(&crtc
->base
.mode
);
14866 /* HW state is read out, now we need to sanitize this mess. */
14867 for_each_intel_encoder(dev
, encoder
) {
14868 intel_sanitize_encoder(encoder
);
14871 for_each_pipe(dev_priv
, pipe
) {
14872 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
14873 intel_sanitize_crtc(crtc
);
14874 intel_dump_pipe_config(crtc
, crtc
->config
,
14875 "[setup_hw_state]");
14878 intel_modeset_update_connector_atomic_state(dev
);
14880 for (i
= 0; i
< dev_priv
->num_shared_dpll
; i
++) {
14881 struct intel_shared_dpll
*pll
= &dev_priv
->shared_dplls
[i
];
14883 if (!pll
->on
|| pll
->active
)
14886 DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll
->name
);
14888 pll
->disable(dev_priv
, pll
);
14893 skl_wm_get_hw_state(dev
);
14894 else if (HAS_PCH_SPLIT(dev
))
14895 ilk_wm_get_hw_state(dev
);
14897 if (force_restore
) {
14898 i915_redisable_vga(dev
);
14901 * We need to use raw interfaces for restoring state to avoid
14902 * checking (bogus) intermediate states.
14904 for_each_pipe(dev_priv
, pipe
) {
14905 struct drm_crtc
*crtc
=
14906 dev_priv
->pipe_to_crtc_mapping
[pipe
];
14908 intel_crtc_restore_mode(crtc
);
14911 intel_modeset_update_staged_output_state(dev
);
14914 intel_modeset_check_state(dev
);
14917 void intel_modeset_gem_init(struct drm_device
*dev
)
14919 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14920 struct drm_crtc
*c
;
14921 struct drm_i915_gem_object
*obj
;
14924 mutex_lock(&dev
->struct_mutex
);
14925 intel_init_gt_powersave(dev
);
14926 mutex_unlock(&dev
->struct_mutex
);
14929 * There may be no VBT; and if the BIOS enabled SSC we can
14930 * just keep using it to avoid unnecessary flicker. Whereas if the
14931 * BIOS isn't using it, don't assume it will work even if the VBT
14932 * indicates as much.
14934 if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
14935 dev_priv
->vbt
.lvds_use_ssc
= !!(I915_READ(PCH_DREF_CONTROL
) &
14938 intel_modeset_init_hw(dev
);
14940 intel_setup_overlay(dev
);
14943 * Make sure any fbs we allocated at startup are properly
14944 * pinned & fenced. When we do the allocation it's too early
14947 for_each_crtc(dev
, c
) {
14948 obj
= intel_fb_obj(c
->primary
->fb
);
14952 mutex_lock(&dev
->struct_mutex
);
14953 ret
= intel_pin_and_fence_fb_obj(c
->primary
,
14957 mutex_unlock(&dev
->struct_mutex
);
14959 DRM_ERROR("failed to pin boot fb on pipe %d\n",
14960 to_intel_crtc(c
)->pipe
);
14961 drm_framebuffer_unreference(c
->primary
->fb
);
14962 c
->primary
->fb
= NULL
;
14963 update_state_fb(c
->primary
);
14967 intel_backlight_register(dev
);
14970 void intel_connector_unregister(struct intel_connector
*intel_connector
)
14972 struct drm_connector
*connector
= &intel_connector
->base
;
14974 intel_panel_destroy_backlight(connector
);
14975 drm_connector_unregister(connector
);
14978 void intel_modeset_cleanup(struct drm_device
*dev
)
14980 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
14981 struct drm_connector
*connector
;
14983 intel_disable_gt_powersave(dev
);
14985 intel_backlight_unregister(dev
);
14988 * Interrupts and polling as the first thing to avoid creating havoc.
14989 * Too much stuff here (turning of connectors, ...) would
14990 * experience fancy races otherwise.
14992 intel_irq_uninstall(dev_priv
);
14995 * Due to the hpd irq storm handling the hotplug work can re-arm the
14996 * poll handlers. Hence disable polling after hpd handling is shut down.
14998 drm_kms_helper_poll_fini(dev
);
15000 mutex_lock(&dev
->struct_mutex
);
15002 intel_unregister_dsm_handler();
15004 intel_fbc_disable(dev
);
15006 mutex_unlock(&dev
->struct_mutex
);
15008 /* flush any delayed tasks or pending work */
15009 flush_scheduled_work();
15011 /* destroy the backlight and sysfs files before encoders/connectors */
15012 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
15013 struct intel_connector
*intel_connector
;
15015 intel_connector
= to_intel_connector(connector
);
15016 intel_connector
->unregister(intel_connector
);
15019 drm_mode_config_cleanup(dev
);
15021 intel_cleanup_overlay(dev
);
15023 mutex_lock(&dev
->struct_mutex
);
15024 intel_cleanup_gt_powersave(dev
);
15025 mutex_unlock(&dev
->struct_mutex
);
15029 * Return which encoder is currently attached for connector.
15031 struct drm_encoder
*intel_best_encoder(struct drm_connector
*connector
)
15033 return &intel_attached_encoder(connector
)->base
;
15036 void intel_connector_attach_encoder(struct intel_connector
*connector
,
15037 struct intel_encoder
*encoder
)
15039 connector
->encoder
= encoder
;
15040 drm_mode_connector_attach_encoder(&connector
->base
,
15045 * set vga decode state - true == enable VGA decode
15047 int intel_modeset_vga_set_state(struct drm_device
*dev
, bool state
)
15049 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
15050 unsigned reg
= INTEL_INFO(dev
)->gen
>= 6 ? SNB_GMCH_CTRL
: INTEL_GMCH_CTRL
;
15053 if (pci_read_config_word(dev_priv
->bridge_dev
, reg
, &gmch_ctrl
)) {
15054 DRM_ERROR("failed to read control word\n");
15058 if (!!(gmch_ctrl
& INTEL_GMCH_VGA_DISABLE
) == !state
)
15062 gmch_ctrl
&= ~INTEL_GMCH_VGA_DISABLE
;
15064 gmch_ctrl
|= INTEL_GMCH_VGA_DISABLE
;
15066 if (pci_write_config_word(dev_priv
->bridge_dev
, reg
, gmch_ctrl
)) {
15067 DRM_ERROR("failed to write control word\n");
15074 struct intel_display_error_state
{
15076 u32 power_well_driver
;
15078 int num_transcoders
;
15080 struct intel_cursor_error_state
{
15085 } cursor
[I915_MAX_PIPES
];
15087 struct intel_pipe_error_state
{
15088 bool power_domain_on
;
15091 } pipe
[I915_MAX_PIPES
];
15093 struct intel_plane_error_state
{
15101 } plane
[I915_MAX_PIPES
];
15103 struct intel_transcoder_error_state
{
15104 bool power_domain_on
;
15105 enum transcoder cpu_transcoder
;
15118 struct intel_display_error_state
*
15119 intel_display_capture_error_state(struct drm_device
*dev
)
15121 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
15122 struct intel_display_error_state
*error
;
15123 int transcoders
[] = {
15131 if (INTEL_INFO(dev
)->num_pipes
== 0)
15134 error
= kzalloc(sizeof(*error
), GFP_ATOMIC
);
15138 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
15139 error
->power_well_driver
= I915_READ(HSW_PWR_WELL_DRIVER
);
15141 for_each_pipe(dev_priv
, i
) {
15142 error
->pipe
[i
].power_domain_on
=
15143 __intel_display_power_is_enabled(dev_priv
,
15144 POWER_DOMAIN_PIPE(i
));
15145 if (!error
->pipe
[i
].power_domain_on
)
15148 error
->cursor
[i
].control
= I915_READ(CURCNTR(i
));
15149 error
->cursor
[i
].position
= I915_READ(CURPOS(i
));
15150 error
->cursor
[i
].base
= I915_READ(CURBASE(i
));
15152 error
->plane
[i
].control
= I915_READ(DSPCNTR(i
));
15153 error
->plane
[i
].stride
= I915_READ(DSPSTRIDE(i
));
15154 if (INTEL_INFO(dev
)->gen
<= 3) {
15155 error
->plane
[i
].size
= I915_READ(DSPSIZE(i
));
15156 error
->plane
[i
].pos
= I915_READ(DSPPOS(i
));
15158 if (INTEL_INFO(dev
)->gen
<= 7 && !IS_HASWELL(dev
))
15159 error
->plane
[i
].addr
= I915_READ(DSPADDR(i
));
15160 if (INTEL_INFO(dev
)->gen
>= 4) {
15161 error
->plane
[i
].surface
= I915_READ(DSPSURF(i
));
15162 error
->plane
[i
].tile_offset
= I915_READ(DSPTILEOFF(i
));
15165 error
->pipe
[i
].source
= I915_READ(PIPESRC(i
));
15167 if (HAS_GMCH_DISPLAY(dev
))
15168 error
->pipe
[i
].stat
= I915_READ(PIPESTAT(i
));
15171 error
->num_transcoders
= INTEL_INFO(dev
)->num_pipes
;
15172 if (HAS_DDI(dev_priv
->dev
))
15173 error
->num_transcoders
++; /* Account for eDP. */
15175 for (i
= 0; i
< error
->num_transcoders
; i
++) {
15176 enum transcoder cpu_transcoder
= transcoders
[i
];
15178 error
->transcoder
[i
].power_domain_on
=
15179 __intel_display_power_is_enabled(dev_priv
,
15180 POWER_DOMAIN_TRANSCODER(cpu_transcoder
));
15181 if (!error
->transcoder
[i
].power_domain_on
)
15184 error
->transcoder
[i
].cpu_transcoder
= cpu_transcoder
;
15186 error
->transcoder
[i
].conf
= I915_READ(PIPECONF(cpu_transcoder
));
15187 error
->transcoder
[i
].htotal
= I915_READ(HTOTAL(cpu_transcoder
));
15188 error
->transcoder
[i
].hblank
= I915_READ(HBLANK(cpu_transcoder
));
15189 error
->transcoder
[i
].hsync
= I915_READ(HSYNC(cpu_transcoder
));
15190 error
->transcoder
[i
].vtotal
= I915_READ(VTOTAL(cpu_transcoder
));
15191 error
->transcoder
[i
].vblank
= I915_READ(VBLANK(cpu_transcoder
));
15192 error
->transcoder
[i
].vsync
= I915_READ(VSYNC(cpu_transcoder
));
15198 #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
15201 intel_display_print_error_state(struct drm_i915_error_state_buf
*m
,
15202 struct drm_device
*dev
,
15203 struct intel_display_error_state
*error
)
15205 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
15211 err_printf(m
, "Num Pipes: %d\n", INTEL_INFO(dev
)->num_pipes
);
15212 if (IS_HASWELL(dev
) || IS_BROADWELL(dev
))
15213 err_printf(m
, "PWR_WELL_CTL2: %08x\n",
15214 error
->power_well_driver
);
15215 for_each_pipe(dev_priv
, i
) {
15216 err_printf(m
, "Pipe [%d]:\n", i
);
15217 err_printf(m
, " Power: %s\n",
15218 error
->pipe
[i
].power_domain_on
? "on" : "off");
15219 err_printf(m
, " SRC: %08x\n", error
->pipe
[i
].source
);
15220 err_printf(m
, " STAT: %08x\n", error
->pipe
[i
].stat
);
15222 err_printf(m
, "Plane [%d]:\n", i
);
15223 err_printf(m
, " CNTR: %08x\n", error
->plane
[i
].control
);
15224 err_printf(m
, " STRIDE: %08x\n", error
->plane
[i
].stride
);
15225 if (INTEL_INFO(dev
)->gen
<= 3) {
15226 err_printf(m
, " SIZE: %08x\n", error
->plane
[i
].size
);
15227 err_printf(m
, " POS: %08x\n", error
->plane
[i
].pos
);
15229 if (INTEL_INFO(dev
)->gen
<= 7 && !IS_HASWELL(dev
))
15230 err_printf(m
, " ADDR: %08x\n", error
->plane
[i
].addr
);
15231 if (INTEL_INFO(dev
)->gen
>= 4) {
15232 err_printf(m
, " SURF: %08x\n", error
->plane
[i
].surface
);
15233 err_printf(m
, " TILEOFF: %08x\n", error
->plane
[i
].tile_offset
);
15236 err_printf(m
, "Cursor [%d]:\n", i
);
15237 err_printf(m
, " CNTR: %08x\n", error
->cursor
[i
].control
);
15238 err_printf(m
, " POS: %08x\n", error
->cursor
[i
].position
);
15239 err_printf(m
, " BASE: %08x\n", error
->cursor
[i
].base
);
15242 for (i
= 0; i
< error
->num_transcoders
; i
++) {
15243 err_printf(m
, "CPU transcoder: %c\n",
15244 transcoder_name(error
->transcoder
[i
].cpu_transcoder
));
15245 err_printf(m
, " Power: %s\n",
15246 error
->transcoder
[i
].power_domain_on
? "on" : "off");
15247 err_printf(m
, " CONF: %08x\n", error
->transcoder
[i
].conf
);
15248 err_printf(m
, " HTOTAL: %08x\n", error
->transcoder
[i
].htotal
);
15249 err_printf(m
, " HBLANK: %08x\n", error
->transcoder
[i
].hblank
);
15250 err_printf(m
, " HSYNC: %08x\n", error
->transcoder
[i
].hsync
);
15251 err_printf(m
, " VTOTAL: %08x\n", error
->transcoder
[i
].vtotal
);
15252 err_printf(m
, " VBLANK: %08x\n", error
->transcoder
[i
].vblank
);
15253 err_printf(m
, " VSYNC: %08x\n", error
->transcoder
[i
].vsync
);
15257 void intel_modeset_preclose(struct drm_device
*dev
, struct drm_file
*file
)
15259 struct intel_crtc
*crtc
;
15261 for_each_intel_crtc(dev
, crtc
) {
15262 struct intel_unpin_work
*work
;
15264 spin_lock_irq(&dev
->event_lock
);
15266 work
= crtc
->unpin_work
;
15268 if (work
&& work
->event
&&
15269 work
->event
->base
.file_priv
== file
) {
15270 kfree(work
->event
);
15271 work
->event
= NULL
;
15274 spin_unlock_irq(&dev
->event_lock
);