2 * Copyright © 2006-2007 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
24 * Eric Anholt <eric@anholt.net>
27 #include <linux/dmi.h>
28 #include <linux/module.h>
29 #include <linux/input.h>
30 #include <linux/i2c.h>
31 #include <linux/kernel.h>
32 #include <linux/slab.h>
33 #include <linux/vgaarb.h>
34 #include <drm/drm_edid.h>
36 #include "intel_drv.h"
37 #include <drm/i915_drm.h>
39 #include "i915_trace.h"
40 #include <drm/drm_dp_helper.h>
41 #include <drm/drm_crtc_helper.h>
42 #include <linux/dma_remapping.h>
44 bool intel_pipe_has_type(struct drm_crtc
*crtc
, int type
);
45 static void intel_increase_pllclock(struct drm_crtc
*crtc
);
46 static void intel_crtc_update_cursor(struct drm_crtc
*crtc
, bool on
);
69 #define INTEL_P2_NUM 2
70 typedef struct intel_limit intel_limit_t
;
72 intel_range_t dot
, vco
, n
, m
, m1
, m2
, p
, p1
;
75 * find_pll() - Find the best values for the PLL
76 * @limit: limits for the PLL
78 * @target: target frequency in kHz
79 * @refclk: reference clock frequency in kHz
80 * @match_clock: if provided, @best_clock P divider must
81 * match the P divider from @match_clock
82 * used for LVDS downclocking
83 * @best_clock: best PLL values found
85 * Returns true on success, false on failure.
87 bool (*find_pll
)(const intel_limit_t
*limit
,
88 struct drm_crtc
*crtc
,
89 int target
, int refclk
,
90 intel_clock_t
*match_clock
,
91 intel_clock_t
*best_clock
);
95 #define IRONLAKE_FDI_FREQ 2700000 /* in kHz for mode->clock */
98 intel_pch_rawclk(struct drm_device
*dev
)
100 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
102 WARN_ON(!HAS_PCH_SPLIT(dev
));
104 return I915_READ(PCH_RAWCLK_FREQ
) & RAWCLK_FREQ_MASK
;
108 intel_find_best_PLL(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
109 int target
, int refclk
, intel_clock_t
*match_clock
,
110 intel_clock_t
*best_clock
);
112 intel_g4x_find_best_PLL(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
113 int target
, int refclk
, intel_clock_t
*match_clock
,
114 intel_clock_t
*best_clock
);
117 intel_find_pll_g4x_dp(const intel_limit_t
*, struct drm_crtc
*crtc
,
118 int target
, int refclk
, intel_clock_t
*match_clock
,
119 intel_clock_t
*best_clock
);
121 intel_find_pll_ironlake_dp(const intel_limit_t
*, struct drm_crtc
*crtc
,
122 int target
, int refclk
, intel_clock_t
*match_clock
,
123 intel_clock_t
*best_clock
);
126 intel_vlv_find_best_pll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
127 int target
, int refclk
, intel_clock_t
*match_clock
,
128 intel_clock_t
*best_clock
);
130 static inline u32
/* units of 100MHz */
131 intel_fdi_link_freq(struct drm_device
*dev
)
134 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
135 return (I915_READ(FDI_PLL_BIOS_0
) & FDI_PLL_FB_CLOCK_MASK
) + 2;
140 static const intel_limit_t intel_limits_i8xx_dvo
= {
141 .dot
= { .min
= 25000, .max
= 350000 },
142 .vco
= { .min
= 930000, .max
= 1400000 },
143 .n
= { .min
= 3, .max
= 16 },
144 .m
= { .min
= 96, .max
= 140 },
145 .m1
= { .min
= 18, .max
= 26 },
146 .m2
= { .min
= 6, .max
= 16 },
147 .p
= { .min
= 4, .max
= 128 },
148 .p1
= { .min
= 2, .max
= 33 },
149 .p2
= { .dot_limit
= 165000,
150 .p2_slow
= 4, .p2_fast
= 2 },
151 .find_pll
= intel_find_best_PLL
,
154 static const intel_limit_t intel_limits_i8xx_lvds
= {
155 .dot
= { .min
= 25000, .max
= 350000 },
156 .vco
= { .min
= 930000, .max
= 1400000 },
157 .n
= { .min
= 3, .max
= 16 },
158 .m
= { .min
= 96, .max
= 140 },
159 .m1
= { .min
= 18, .max
= 26 },
160 .m2
= { .min
= 6, .max
= 16 },
161 .p
= { .min
= 4, .max
= 128 },
162 .p1
= { .min
= 1, .max
= 6 },
163 .p2
= { .dot_limit
= 165000,
164 .p2_slow
= 14, .p2_fast
= 7 },
165 .find_pll
= intel_find_best_PLL
,
168 static const intel_limit_t intel_limits_i9xx_sdvo
= {
169 .dot
= { .min
= 20000, .max
= 400000 },
170 .vco
= { .min
= 1400000, .max
= 2800000 },
171 .n
= { .min
= 1, .max
= 6 },
172 .m
= { .min
= 70, .max
= 120 },
173 .m1
= { .min
= 8, .max
= 18 },
174 .m2
= { .min
= 3, .max
= 7 },
175 .p
= { .min
= 5, .max
= 80 },
176 .p1
= { .min
= 1, .max
= 8 },
177 .p2
= { .dot_limit
= 200000,
178 .p2_slow
= 10, .p2_fast
= 5 },
179 .find_pll
= intel_find_best_PLL
,
182 static const intel_limit_t intel_limits_i9xx_lvds
= {
183 .dot
= { .min
= 20000, .max
= 400000 },
184 .vco
= { .min
= 1400000, .max
= 2800000 },
185 .n
= { .min
= 1, .max
= 6 },
186 .m
= { .min
= 70, .max
= 120 },
187 .m1
= { .min
= 8, .max
= 18 },
188 .m2
= { .min
= 3, .max
= 7 },
189 .p
= { .min
= 7, .max
= 98 },
190 .p1
= { .min
= 1, .max
= 8 },
191 .p2
= { .dot_limit
= 112000,
192 .p2_slow
= 14, .p2_fast
= 7 },
193 .find_pll
= intel_find_best_PLL
,
197 static const intel_limit_t intel_limits_g4x_sdvo
= {
198 .dot
= { .min
= 25000, .max
= 270000 },
199 .vco
= { .min
= 1750000, .max
= 3500000},
200 .n
= { .min
= 1, .max
= 4 },
201 .m
= { .min
= 104, .max
= 138 },
202 .m1
= { .min
= 17, .max
= 23 },
203 .m2
= { .min
= 5, .max
= 11 },
204 .p
= { .min
= 10, .max
= 30 },
205 .p1
= { .min
= 1, .max
= 3},
206 .p2
= { .dot_limit
= 270000,
210 .find_pll
= intel_g4x_find_best_PLL
,
213 static const intel_limit_t intel_limits_g4x_hdmi
= {
214 .dot
= { .min
= 22000, .max
= 400000 },
215 .vco
= { .min
= 1750000, .max
= 3500000},
216 .n
= { .min
= 1, .max
= 4 },
217 .m
= { .min
= 104, .max
= 138 },
218 .m1
= { .min
= 16, .max
= 23 },
219 .m2
= { .min
= 5, .max
= 11 },
220 .p
= { .min
= 5, .max
= 80 },
221 .p1
= { .min
= 1, .max
= 8},
222 .p2
= { .dot_limit
= 165000,
223 .p2_slow
= 10, .p2_fast
= 5 },
224 .find_pll
= intel_g4x_find_best_PLL
,
227 static const intel_limit_t intel_limits_g4x_single_channel_lvds
= {
228 .dot
= { .min
= 20000, .max
= 115000 },
229 .vco
= { .min
= 1750000, .max
= 3500000 },
230 .n
= { .min
= 1, .max
= 3 },
231 .m
= { .min
= 104, .max
= 138 },
232 .m1
= { .min
= 17, .max
= 23 },
233 .m2
= { .min
= 5, .max
= 11 },
234 .p
= { .min
= 28, .max
= 112 },
235 .p1
= { .min
= 2, .max
= 8 },
236 .p2
= { .dot_limit
= 0,
237 .p2_slow
= 14, .p2_fast
= 14
239 .find_pll
= intel_g4x_find_best_PLL
,
242 static const intel_limit_t intel_limits_g4x_dual_channel_lvds
= {
243 .dot
= { .min
= 80000, .max
= 224000 },
244 .vco
= { .min
= 1750000, .max
= 3500000 },
245 .n
= { .min
= 1, .max
= 3 },
246 .m
= { .min
= 104, .max
= 138 },
247 .m1
= { .min
= 17, .max
= 23 },
248 .m2
= { .min
= 5, .max
= 11 },
249 .p
= { .min
= 14, .max
= 42 },
250 .p1
= { .min
= 2, .max
= 6 },
251 .p2
= { .dot_limit
= 0,
252 .p2_slow
= 7, .p2_fast
= 7
254 .find_pll
= intel_g4x_find_best_PLL
,
257 static const intel_limit_t intel_limits_g4x_display_port
= {
258 .dot
= { .min
= 161670, .max
= 227000 },
259 .vco
= { .min
= 1750000, .max
= 3500000},
260 .n
= { .min
= 1, .max
= 2 },
261 .m
= { .min
= 97, .max
= 108 },
262 .m1
= { .min
= 0x10, .max
= 0x12 },
263 .m2
= { .min
= 0x05, .max
= 0x06 },
264 .p
= { .min
= 10, .max
= 20 },
265 .p1
= { .min
= 1, .max
= 2},
266 .p2
= { .dot_limit
= 0,
267 .p2_slow
= 10, .p2_fast
= 10 },
268 .find_pll
= intel_find_pll_g4x_dp
,
271 static const intel_limit_t intel_limits_pineview_sdvo
= {
272 .dot
= { .min
= 20000, .max
= 400000},
273 .vco
= { .min
= 1700000, .max
= 3500000 },
274 /* Pineview's Ncounter is a ring counter */
275 .n
= { .min
= 3, .max
= 6 },
276 .m
= { .min
= 2, .max
= 256 },
277 /* Pineview only has one combined m divider, which we treat as m2. */
278 .m1
= { .min
= 0, .max
= 0 },
279 .m2
= { .min
= 0, .max
= 254 },
280 .p
= { .min
= 5, .max
= 80 },
281 .p1
= { .min
= 1, .max
= 8 },
282 .p2
= { .dot_limit
= 200000,
283 .p2_slow
= 10, .p2_fast
= 5 },
284 .find_pll
= intel_find_best_PLL
,
287 static const intel_limit_t intel_limits_pineview_lvds
= {
288 .dot
= { .min
= 20000, .max
= 400000 },
289 .vco
= { .min
= 1700000, .max
= 3500000 },
290 .n
= { .min
= 3, .max
= 6 },
291 .m
= { .min
= 2, .max
= 256 },
292 .m1
= { .min
= 0, .max
= 0 },
293 .m2
= { .min
= 0, .max
= 254 },
294 .p
= { .min
= 7, .max
= 112 },
295 .p1
= { .min
= 1, .max
= 8 },
296 .p2
= { .dot_limit
= 112000,
297 .p2_slow
= 14, .p2_fast
= 14 },
298 .find_pll
= intel_find_best_PLL
,
301 /* Ironlake / Sandybridge
303 * We calculate clock using (register_value + 2) for N/M1/M2, so here
304 * the range value for them is (actual_value - 2).
306 static const intel_limit_t intel_limits_ironlake_dac
= {
307 .dot
= { .min
= 25000, .max
= 350000 },
308 .vco
= { .min
= 1760000, .max
= 3510000 },
309 .n
= { .min
= 1, .max
= 5 },
310 .m
= { .min
= 79, .max
= 127 },
311 .m1
= { .min
= 12, .max
= 22 },
312 .m2
= { .min
= 5, .max
= 9 },
313 .p
= { .min
= 5, .max
= 80 },
314 .p1
= { .min
= 1, .max
= 8 },
315 .p2
= { .dot_limit
= 225000,
316 .p2_slow
= 10, .p2_fast
= 5 },
317 .find_pll
= intel_g4x_find_best_PLL
,
320 static const intel_limit_t intel_limits_ironlake_single_lvds
= {
321 .dot
= { .min
= 25000, .max
= 350000 },
322 .vco
= { .min
= 1760000, .max
= 3510000 },
323 .n
= { .min
= 1, .max
= 3 },
324 .m
= { .min
= 79, .max
= 118 },
325 .m1
= { .min
= 12, .max
= 22 },
326 .m2
= { .min
= 5, .max
= 9 },
327 .p
= { .min
= 28, .max
= 112 },
328 .p1
= { .min
= 2, .max
= 8 },
329 .p2
= { .dot_limit
= 225000,
330 .p2_slow
= 14, .p2_fast
= 14 },
331 .find_pll
= intel_g4x_find_best_PLL
,
334 static const intel_limit_t intel_limits_ironlake_dual_lvds
= {
335 .dot
= { .min
= 25000, .max
= 350000 },
336 .vco
= { .min
= 1760000, .max
= 3510000 },
337 .n
= { .min
= 1, .max
= 3 },
338 .m
= { .min
= 79, .max
= 127 },
339 .m1
= { .min
= 12, .max
= 22 },
340 .m2
= { .min
= 5, .max
= 9 },
341 .p
= { .min
= 14, .max
= 56 },
342 .p1
= { .min
= 2, .max
= 8 },
343 .p2
= { .dot_limit
= 225000,
344 .p2_slow
= 7, .p2_fast
= 7 },
345 .find_pll
= intel_g4x_find_best_PLL
,
348 /* LVDS 100mhz refclk limits. */
349 static const intel_limit_t intel_limits_ironlake_single_lvds_100m
= {
350 .dot
= { .min
= 25000, .max
= 350000 },
351 .vco
= { .min
= 1760000, .max
= 3510000 },
352 .n
= { .min
= 1, .max
= 2 },
353 .m
= { .min
= 79, .max
= 126 },
354 .m1
= { .min
= 12, .max
= 22 },
355 .m2
= { .min
= 5, .max
= 9 },
356 .p
= { .min
= 28, .max
= 112 },
357 .p1
= { .min
= 2, .max
= 8 },
358 .p2
= { .dot_limit
= 225000,
359 .p2_slow
= 14, .p2_fast
= 14 },
360 .find_pll
= intel_g4x_find_best_PLL
,
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 },
374 .find_pll
= intel_g4x_find_best_PLL
,
377 static const intel_limit_t intel_limits_ironlake_display_port
= {
378 .dot
= { .min
= 25000, .max
= 350000 },
379 .vco
= { .min
= 1760000, .max
= 3510000},
380 .n
= { .min
= 1, .max
= 2 },
381 .m
= { .min
= 81, .max
= 90 },
382 .m1
= { .min
= 12, .max
= 22 },
383 .m2
= { .min
= 5, .max
= 9 },
384 .p
= { .min
= 10, .max
= 20 },
385 .p1
= { .min
= 1, .max
= 2},
386 .p2
= { .dot_limit
= 0,
387 .p2_slow
= 10, .p2_fast
= 10 },
388 .find_pll
= intel_find_pll_ironlake_dp
,
391 static const intel_limit_t intel_limits_vlv_dac
= {
392 .dot
= { .min
= 25000, .max
= 270000 },
393 .vco
= { .min
= 4000000, .max
= 6000000 },
394 .n
= { .min
= 1, .max
= 7 },
395 .m
= { .min
= 22, .max
= 450 }, /* guess */
396 .m1
= { .min
= 2, .max
= 3 },
397 .m2
= { .min
= 11, .max
= 156 },
398 .p
= { .min
= 10, .max
= 30 },
399 .p1
= { .min
= 2, .max
= 3 },
400 .p2
= { .dot_limit
= 270000,
401 .p2_slow
= 2, .p2_fast
= 20 },
402 .find_pll
= intel_vlv_find_best_pll
,
405 static const intel_limit_t intel_limits_vlv_hdmi
= {
406 .dot
= { .min
= 20000, .max
= 165000 },
407 .vco
= { .min
= 4000000, .max
= 5994000},
408 .n
= { .min
= 1, .max
= 7 },
409 .m
= { .min
= 60, .max
= 300 }, /* guess */
410 .m1
= { .min
= 2, .max
= 3 },
411 .m2
= { .min
= 11, .max
= 156 },
412 .p
= { .min
= 10, .max
= 30 },
413 .p1
= { .min
= 2, .max
= 3 },
414 .p2
= { .dot_limit
= 270000,
415 .p2_slow
= 2, .p2_fast
= 20 },
416 .find_pll
= intel_vlv_find_best_pll
,
419 static const intel_limit_t intel_limits_vlv_dp
= {
420 .dot
= { .min
= 25000, .max
= 270000 },
421 .vco
= { .min
= 4000000, .max
= 6000000 },
422 .n
= { .min
= 1, .max
= 7 },
423 .m
= { .min
= 22, .max
= 450 },
424 .m1
= { .min
= 2, .max
= 3 },
425 .m2
= { .min
= 11, .max
= 156 },
426 .p
= { .min
= 10, .max
= 30 },
427 .p1
= { .min
= 2, .max
= 3 },
428 .p2
= { .dot_limit
= 270000,
429 .p2_slow
= 2, .p2_fast
= 20 },
430 .find_pll
= intel_vlv_find_best_pll
,
433 u32
intel_dpio_read(struct drm_i915_private
*dev_priv
, int reg
)
435 WARN_ON(!mutex_is_locked(&dev_priv
->dpio_lock
));
437 if (wait_for_atomic_us((I915_READ(DPIO_PKT
) & DPIO_BUSY
) == 0, 100)) {
438 DRM_ERROR("DPIO idle wait timed out\n");
442 I915_WRITE(DPIO_REG
, reg
);
443 I915_WRITE(DPIO_PKT
, DPIO_RID
| DPIO_OP_READ
| DPIO_PORTID
|
445 if (wait_for_atomic_us((I915_READ(DPIO_PKT
) & DPIO_BUSY
) == 0, 100)) {
446 DRM_ERROR("DPIO read wait timed out\n");
450 return I915_READ(DPIO_DATA
);
453 static void intel_dpio_write(struct drm_i915_private
*dev_priv
, int reg
,
456 WARN_ON(!mutex_is_locked(&dev_priv
->dpio_lock
));
458 if (wait_for_atomic_us((I915_READ(DPIO_PKT
) & DPIO_BUSY
) == 0, 100)) {
459 DRM_ERROR("DPIO idle wait timed out\n");
463 I915_WRITE(DPIO_DATA
, val
);
464 I915_WRITE(DPIO_REG
, reg
);
465 I915_WRITE(DPIO_PKT
, DPIO_RID
| DPIO_OP_WRITE
| DPIO_PORTID
|
467 if (wait_for_atomic_us((I915_READ(DPIO_PKT
) & DPIO_BUSY
) == 0, 100))
468 DRM_ERROR("DPIO write wait timed out\n");
471 static void vlv_init_dpio(struct drm_device
*dev
)
473 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
475 /* Reset the DPIO config */
476 I915_WRITE(DPIO_CTL
, 0);
477 POSTING_READ(DPIO_CTL
);
478 I915_WRITE(DPIO_CTL
, 1);
479 POSTING_READ(DPIO_CTL
);
482 static const intel_limit_t
*intel_ironlake_limit(struct drm_crtc
*crtc
,
485 struct drm_device
*dev
= crtc
->dev
;
486 const intel_limit_t
*limit
;
488 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
489 if (intel_is_dual_link_lvds(dev
)) {
490 if (refclk
== 100000)
491 limit
= &intel_limits_ironlake_dual_lvds_100m
;
493 limit
= &intel_limits_ironlake_dual_lvds
;
495 if (refclk
== 100000)
496 limit
= &intel_limits_ironlake_single_lvds_100m
;
498 limit
= &intel_limits_ironlake_single_lvds
;
500 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
) ||
501 intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
))
502 limit
= &intel_limits_ironlake_display_port
;
504 limit
= &intel_limits_ironlake_dac
;
509 static const intel_limit_t
*intel_g4x_limit(struct drm_crtc
*crtc
)
511 struct drm_device
*dev
= crtc
->dev
;
512 const intel_limit_t
*limit
;
514 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
515 if (intel_is_dual_link_lvds(dev
))
516 limit
= &intel_limits_g4x_dual_channel_lvds
;
518 limit
= &intel_limits_g4x_single_channel_lvds
;
519 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
) ||
520 intel_pipe_has_type(crtc
, INTEL_OUTPUT_ANALOG
)) {
521 limit
= &intel_limits_g4x_hdmi
;
522 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_SDVO
)) {
523 limit
= &intel_limits_g4x_sdvo
;
524 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
)) {
525 limit
= &intel_limits_g4x_display_port
;
526 } else /* The option is for other outputs */
527 limit
= &intel_limits_i9xx_sdvo
;
532 static const intel_limit_t
*intel_limit(struct drm_crtc
*crtc
, int refclk
)
534 struct drm_device
*dev
= crtc
->dev
;
535 const intel_limit_t
*limit
;
537 if (HAS_PCH_SPLIT(dev
))
538 limit
= intel_ironlake_limit(crtc
, refclk
);
539 else if (IS_G4X(dev
)) {
540 limit
= intel_g4x_limit(crtc
);
541 } else if (IS_PINEVIEW(dev
)) {
542 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
543 limit
= &intel_limits_pineview_lvds
;
545 limit
= &intel_limits_pineview_sdvo
;
546 } else if (IS_VALLEYVIEW(dev
)) {
547 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_ANALOG
))
548 limit
= &intel_limits_vlv_dac
;
549 else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
))
550 limit
= &intel_limits_vlv_hdmi
;
552 limit
= &intel_limits_vlv_dp
;
553 } else if (!IS_GEN2(dev
)) {
554 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
555 limit
= &intel_limits_i9xx_lvds
;
557 limit
= &intel_limits_i9xx_sdvo
;
559 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
560 limit
= &intel_limits_i8xx_lvds
;
562 limit
= &intel_limits_i8xx_dvo
;
567 /* m1 is reserved as 0 in Pineview, n is a ring counter */
568 static void pineview_clock(int refclk
, intel_clock_t
*clock
)
570 clock
->m
= clock
->m2
+ 2;
571 clock
->p
= clock
->p1
* clock
->p2
;
572 clock
->vco
= refclk
* clock
->m
/ clock
->n
;
573 clock
->dot
= clock
->vco
/ clock
->p
;
576 static void intel_clock(struct drm_device
*dev
, int refclk
, intel_clock_t
*clock
)
578 if (IS_PINEVIEW(dev
)) {
579 pineview_clock(refclk
, clock
);
582 clock
->m
= 5 * (clock
->m1
+ 2) + (clock
->m2
+ 2);
583 clock
->p
= clock
->p1
* clock
->p2
;
584 clock
->vco
= refclk
* clock
->m
/ (clock
->n
+ 2);
585 clock
->dot
= clock
->vco
/ clock
->p
;
589 * Returns whether any output on the specified pipe is of the specified type
591 bool intel_pipe_has_type(struct drm_crtc
*crtc
, int type
)
593 struct drm_device
*dev
= crtc
->dev
;
594 struct intel_encoder
*encoder
;
596 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
597 if (encoder
->type
== type
)
603 #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
605 * Returns whether the given set of divisors are valid for a given refclk with
606 * the given connectors.
609 static bool intel_PLL_is_valid(struct drm_device
*dev
,
610 const intel_limit_t
*limit
,
611 const intel_clock_t
*clock
)
613 if (clock
->p1
< limit
->p1
.min
|| limit
->p1
.max
< clock
->p1
)
614 INTELPllInvalid("p1 out of range\n");
615 if (clock
->p
< limit
->p
.min
|| limit
->p
.max
< clock
->p
)
616 INTELPllInvalid("p out of range\n");
617 if (clock
->m2
< limit
->m2
.min
|| limit
->m2
.max
< clock
->m2
)
618 INTELPllInvalid("m2 out of range\n");
619 if (clock
->m1
< limit
->m1
.min
|| limit
->m1
.max
< clock
->m1
)
620 INTELPllInvalid("m1 out of range\n");
621 if (clock
->m1
<= clock
->m2
&& !IS_PINEVIEW(dev
))
622 INTELPllInvalid("m1 <= m2\n");
623 if (clock
->m
< limit
->m
.min
|| limit
->m
.max
< clock
->m
)
624 INTELPllInvalid("m out of range\n");
625 if (clock
->n
< limit
->n
.min
|| limit
->n
.max
< clock
->n
)
626 INTELPllInvalid("n out of range\n");
627 if (clock
->vco
< limit
->vco
.min
|| limit
->vco
.max
< clock
->vco
)
628 INTELPllInvalid("vco out of range\n");
629 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
630 * connector, etc., rather than just a single range.
632 if (clock
->dot
< limit
->dot
.min
|| limit
->dot
.max
< clock
->dot
)
633 INTELPllInvalid("dot out of range\n");
639 intel_find_best_PLL(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
640 int target
, int refclk
, intel_clock_t
*match_clock
,
641 intel_clock_t
*best_clock
)
644 struct drm_device
*dev
= crtc
->dev
;
648 if (intel_pipe_has_type(crtc
, 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 /* m1 is always 0 in Pineview */
672 if (clock
.m2
>= clock
.m1
&& !IS_PINEVIEW(dev
))
674 for (clock
.n
= limit
->n
.min
;
675 clock
.n
<= limit
->n
.max
; clock
.n
++) {
676 for (clock
.p1
= limit
->p1
.min
;
677 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
680 intel_clock(dev
, refclk
, &clock
);
681 if (!intel_PLL_is_valid(dev
, limit
,
685 clock
.p
!= match_clock
->p
)
688 this_err
= abs(clock
.dot
- target
);
689 if (this_err
< err
) {
698 return (err
!= target
);
702 intel_g4x_find_best_PLL(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
703 int target
, int refclk
, intel_clock_t
*match_clock
,
704 intel_clock_t
*best_clock
)
706 struct drm_device
*dev
= crtc
->dev
;
710 /* approximately equals target * 0.00585 */
711 int err_most
= (target
>> 8) + (target
>> 9);
714 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
717 if (HAS_PCH_SPLIT(dev
))
721 if (intel_is_dual_link_lvds(dev
))
722 clock
.p2
= limit
->p2
.p2_fast
;
724 clock
.p2
= limit
->p2
.p2_slow
;
726 if (target
< limit
->p2
.dot_limit
)
727 clock
.p2
= limit
->p2
.p2_slow
;
729 clock
.p2
= limit
->p2
.p2_fast
;
732 memset(best_clock
, 0, sizeof(*best_clock
));
733 max_n
= limit
->n
.max
;
734 /* based on hardware requirement, prefer smaller n to precision */
735 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
736 /* based on hardware requirement, prefere larger m1,m2 */
737 for (clock
.m1
= limit
->m1
.max
;
738 clock
.m1
>= limit
->m1
.min
; clock
.m1
--) {
739 for (clock
.m2
= limit
->m2
.max
;
740 clock
.m2
>= limit
->m2
.min
; clock
.m2
--) {
741 for (clock
.p1
= limit
->p1
.max
;
742 clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
745 intel_clock(dev
, refclk
, &clock
);
746 if (!intel_PLL_is_valid(dev
, limit
,
750 clock
.p
!= match_clock
->p
)
753 this_err
= abs(clock
.dot
- target
);
754 if (this_err
< err_most
) {
768 intel_find_pll_ironlake_dp(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
769 int target
, int refclk
, intel_clock_t
*match_clock
,
770 intel_clock_t
*best_clock
)
772 struct drm_device
*dev
= crtc
->dev
;
775 if (target
< 200000) {
788 intel_clock(dev
, refclk
, &clock
);
789 memcpy(best_clock
, &clock
, sizeof(intel_clock_t
));
793 /* DisplayPort has only two frequencies, 162MHz and 270MHz */
795 intel_find_pll_g4x_dp(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
796 int target
, int refclk
, intel_clock_t
*match_clock
,
797 intel_clock_t
*best_clock
)
800 if (target
< 200000) {
813 clock
.m
= 5 * (clock
.m1
+ 2) + (clock
.m2
+ 2);
814 clock
.p
= (clock
.p1
* clock
.p2
);
815 clock
.dot
= 96000 * clock
.m
/ (clock
.n
+ 2) / clock
.p
;
817 memcpy(best_clock
, &clock
, sizeof(intel_clock_t
));
821 intel_vlv_find_best_pll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
822 int target
, int refclk
, intel_clock_t
*match_clock
,
823 intel_clock_t
*best_clock
)
825 u32 p1
, p2
, m1
, m2
, vco
, bestn
, bestm1
, bestm2
, bestp1
, bestp2
;
827 u32 updrate
, minupdate
, fracbits
, p
;
828 unsigned long bestppm
, ppm
, absppm
;
832 dotclk
= target
* 1000;
835 fastclk
= dotclk
/ (2*100);
839 n
= p
= p1
= p2
= m
= m1
= m2
= vco
= bestn
= 0;
840 bestm1
= bestm2
= bestp1
= bestp2
= 0;
842 /* based on hardware requirement, prefer smaller n to precision */
843 for (n
= limit
->n
.min
; n
<= ((refclk
) / minupdate
); n
++) {
844 updrate
= refclk
/ n
;
845 for (p1
= limit
->p1
.max
; p1
> limit
->p1
.min
; p1
--) {
846 for (p2
= limit
->p2
.p2_fast
+1; p2
> 0; p2
--) {
850 /* based on hardware requirement, prefer bigger m1,m2 values */
851 for (m1
= limit
->m1
.min
; m1
<= limit
->m1
.max
; m1
++) {
852 m2
= (((2*(fastclk
* p
* n
/ m1
)) +
853 refclk
) / (2*refclk
));
856 if (vco
>= limit
->vco
.min
&& vco
< limit
->vco
.max
) {
857 ppm
= 1000000 * ((vco
/ p
) - fastclk
) / fastclk
;
858 absppm
= (ppm
> 0) ? ppm
: (-ppm
);
859 if (absppm
< 100 && ((p1
* p2
) > (bestp1
* bestp2
))) {
863 if (absppm
< bestppm
- 10) {
880 best_clock
->n
= bestn
;
881 best_clock
->m1
= bestm1
;
882 best_clock
->m2
= bestm2
;
883 best_clock
->p1
= bestp1
;
884 best_clock
->p2
= bestp2
;
889 enum transcoder
intel_pipe_to_cpu_transcoder(struct drm_i915_private
*dev_priv
,
892 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
893 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
895 return intel_crtc
->cpu_transcoder
;
898 static void ironlake_wait_for_vblank(struct drm_device
*dev
, int pipe
)
900 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
901 u32 frame
, frame_reg
= PIPEFRAME(pipe
);
903 frame
= I915_READ(frame_reg
);
905 if (wait_for(I915_READ_NOTRACE(frame_reg
) != frame
, 50))
906 DRM_DEBUG_KMS("vblank wait timed out\n");
910 * intel_wait_for_vblank - wait for vblank on a given pipe
912 * @pipe: pipe to wait for
914 * Wait for vblank to occur on a given pipe. Needed for various bits of
917 void intel_wait_for_vblank(struct drm_device
*dev
, int pipe
)
919 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
920 int pipestat_reg
= PIPESTAT(pipe
);
922 if (INTEL_INFO(dev
)->gen
>= 5) {
923 ironlake_wait_for_vblank(dev
, pipe
);
927 /* Clear existing vblank status. Note this will clear any other
928 * sticky status fields as well.
930 * This races with i915_driver_irq_handler() with the result
931 * that either function could miss a vblank event. Here it is not
932 * fatal, as we will either wait upon the next vblank interrupt or
933 * timeout. Generally speaking intel_wait_for_vblank() is only
934 * called during modeset at which time the GPU should be idle and
935 * should *not* be performing page flips and thus not waiting on
937 * Currently, the result of us stealing a vblank from the irq
938 * handler is that a single frame will be skipped during swapbuffers.
940 I915_WRITE(pipestat_reg
,
941 I915_READ(pipestat_reg
) | PIPE_VBLANK_INTERRUPT_STATUS
);
943 /* Wait for vblank interrupt bit to set */
944 if (wait_for(I915_READ(pipestat_reg
) &
945 PIPE_VBLANK_INTERRUPT_STATUS
,
947 DRM_DEBUG_KMS("vblank wait timed out\n");
951 * intel_wait_for_pipe_off - wait for pipe to turn off
953 * @pipe: pipe to wait for
955 * After disabling a pipe, we can't wait for vblank in the usual way,
956 * spinning on the vblank interrupt status bit, since we won't actually
957 * see an interrupt when the pipe is disabled.
960 * wait for the pipe register state bit to turn off
963 * wait for the display line value to settle (it usually
964 * ends up stopping at the start of the next frame).
967 void intel_wait_for_pipe_off(struct drm_device
*dev
, int pipe
)
969 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
970 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
973 if (INTEL_INFO(dev
)->gen
>= 4) {
974 int reg
= PIPECONF(cpu_transcoder
);
976 /* Wait for the Pipe State to go off */
977 if (wait_for((I915_READ(reg
) & I965_PIPECONF_ACTIVE
) == 0,
979 WARN(1, "pipe_off wait timed out\n");
981 u32 last_line
, line_mask
;
982 int reg
= PIPEDSL(pipe
);
983 unsigned long timeout
= jiffies
+ msecs_to_jiffies(100);
986 line_mask
= DSL_LINEMASK_GEN2
;
988 line_mask
= DSL_LINEMASK_GEN3
;
990 /* Wait for the display line to settle */
992 last_line
= I915_READ(reg
) & line_mask
;
994 } while (((I915_READ(reg
) & line_mask
) != last_line
) &&
995 time_after(timeout
, jiffies
));
996 if (time_after(jiffies
, timeout
))
997 WARN(1, "pipe_off wait timed out\n");
1002 * ibx_digital_port_connected - is the specified port connected?
1003 * @dev_priv: i915 private structure
1004 * @port: the port to test
1006 * Returns true if @port is connected, false otherwise.
1008 bool ibx_digital_port_connected(struct drm_i915_private
*dev_priv
,
1009 struct intel_digital_port
*port
)
1013 if (HAS_PCH_IBX(dev_priv
->dev
)) {
1014 switch(port
->port
) {
1016 bit
= SDE_PORTB_HOTPLUG
;
1019 bit
= SDE_PORTC_HOTPLUG
;
1022 bit
= SDE_PORTD_HOTPLUG
;
1028 switch(port
->port
) {
1030 bit
= SDE_PORTB_HOTPLUG_CPT
;
1033 bit
= SDE_PORTC_HOTPLUG_CPT
;
1036 bit
= SDE_PORTD_HOTPLUG_CPT
;
1043 return I915_READ(SDEISR
) & bit
;
1046 static const char *state_string(bool enabled
)
1048 return enabled
? "on" : "off";
1051 /* Only for pre-ILK configs */
1052 static void assert_pll(struct drm_i915_private
*dev_priv
,
1053 enum pipe pipe
, bool state
)
1060 val
= I915_READ(reg
);
1061 cur_state
= !!(val
& DPLL_VCO_ENABLE
);
1062 WARN(cur_state
!= state
,
1063 "PLL state assertion failure (expected %s, current %s)\n",
1064 state_string(state
), state_string(cur_state
));
1066 #define assert_pll_enabled(d, p) assert_pll(d, p, true)
1067 #define assert_pll_disabled(d, p) assert_pll(d, p, false)
1070 static void assert_pch_pll(struct drm_i915_private
*dev_priv
,
1071 struct intel_pch_pll
*pll
,
1072 struct intel_crtc
*crtc
,
1078 if (HAS_PCH_LPT(dev_priv
->dev
)) {
1079 DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n");
1084 "asserting PCH PLL %s with no PLL\n", state_string(state
)))
1087 val
= I915_READ(pll
->pll_reg
);
1088 cur_state
= !!(val
& DPLL_VCO_ENABLE
);
1089 WARN(cur_state
!= state
,
1090 "PCH PLL state for reg %x assertion failure (expected %s, current %s), val=%08x\n",
1091 pll
->pll_reg
, state_string(state
), state_string(cur_state
), val
);
1093 /* Make sure the selected PLL is correctly attached to the transcoder */
1094 if (crtc
&& HAS_PCH_CPT(dev_priv
->dev
)) {
1097 pch_dpll
= I915_READ(PCH_DPLL_SEL
);
1098 cur_state
= pll
->pll_reg
== _PCH_DPLL_B
;
1099 if (!WARN(((pch_dpll
>> (4 * crtc
->pipe
)) & 1) != cur_state
,
1100 "PLL[%d] not attached to this transcoder %d: %08x\n",
1101 cur_state
, crtc
->pipe
, pch_dpll
)) {
1102 cur_state
= !!(val
>> (4*crtc
->pipe
+ 3));
1103 WARN(cur_state
!= state
,
1104 "PLL[%d] not %s on this transcoder %d: %08x\n",
1105 pll
->pll_reg
== _PCH_DPLL_B
,
1106 state_string(state
),
1112 #define assert_pch_pll_enabled(d, p, c) assert_pch_pll(d, p, c, true)
1113 #define assert_pch_pll_disabled(d, p, c) assert_pch_pll(d, p, c, false)
1115 static void assert_fdi_tx(struct drm_i915_private
*dev_priv
,
1116 enum pipe pipe
, bool state
)
1121 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1124 if (HAS_DDI(dev_priv
->dev
)) {
1125 /* DDI does not have a specific FDI_TX register */
1126 reg
= TRANS_DDI_FUNC_CTL(cpu_transcoder
);
1127 val
= I915_READ(reg
);
1128 cur_state
= !!(val
& TRANS_DDI_FUNC_ENABLE
);
1130 reg
= FDI_TX_CTL(pipe
);
1131 val
= I915_READ(reg
);
1132 cur_state
= !!(val
& FDI_TX_ENABLE
);
1134 WARN(cur_state
!= state
,
1135 "FDI TX state assertion failure (expected %s, current %s)\n",
1136 state_string(state
), state_string(cur_state
));
1138 #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
1139 #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
1141 static void assert_fdi_rx(struct drm_i915_private
*dev_priv
,
1142 enum pipe pipe
, bool state
)
1148 reg
= FDI_RX_CTL(pipe
);
1149 val
= I915_READ(reg
);
1150 cur_state
= !!(val
& FDI_RX_ENABLE
);
1151 WARN(cur_state
!= state
,
1152 "FDI RX state assertion failure (expected %s, current %s)\n",
1153 state_string(state
), state_string(cur_state
));
1155 #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
1156 #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
1158 static void assert_fdi_tx_pll_enabled(struct drm_i915_private
*dev_priv
,
1164 /* ILK FDI PLL is always enabled */
1165 if (dev_priv
->info
->gen
== 5)
1168 /* On Haswell, DDI ports are responsible for the FDI PLL setup */
1169 if (HAS_DDI(dev_priv
->dev
))
1172 reg
= FDI_TX_CTL(pipe
);
1173 val
= I915_READ(reg
);
1174 WARN(!(val
& FDI_TX_PLL_ENABLE
), "FDI TX PLL assertion failure, should be active but is disabled\n");
1177 static void assert_fdi_rx_pll_enabled(struct drm_i915_private
*dev_priv
,
1183 reg
= FDI_RX_CTL(pipe
);
1184 val
= I915_READ(reg
);
1185 WARN(!(val
& FDI_RX_PLL_ENABLE
), "FDI RX PLL assertion failure, should be active but is disabled\n");
1188 static void assert_panel_unlocked(struct drm_i915_private
*dev_priv
,
1191 int pp_reg
, lvds_reg
;
1193 enum pipe panel_pipe
= PIPE_A
;
1196 if (HAS_PCH_SPLIT(dev_priv
->dev
)) {
1197 pp_reg
= PCH_PP_CONTROL
;
1198 lvds_reg
= PCH_LVDS
;
1200 pp_reg
= PP_CONTROL
;
1204 val
= I915_READ(pp_reg
);
1205 if (!(val
& PANEL_POWER_ON
) ||
1206 ((val
& PANEL_UNLOCK_REGS
) == PANEL_UNLOCK_REGS
))
1209 if (I915_READ(lvds_reg
) & LVDS_PIPEB_SELECT
)
1210 panel_pipe
= PIPE_B
;
1212 WARN(panel_pipe
== pipe
&& locked
,
1213 "panel assertion failure, pipe %c regs locked\n",
1217 void assert_pipe(struct drm_i915_private
*dev_priv
,
1218 enum pipe pipe
, bool state
)
1223 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1226 /* if we need the pipe A quirk it must be always on */
1227 if (pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
)
1230 if (IS_HASWELL(dev_priv
->dev
) && cpu_transcoder
!= TRANSCODER_EDP
&&
1231 !(I915_READ(HSW_PWR_WELL_DRIVER
) & HSW_PWR_WELL_ENABLE
)) {
1234 reg
= PIPECONF(cpu_transcoder
);
1235 val
= I915_READ(reg
);
1236 cur_state
= !!(val
& PIPECONF_ENABLE
);
1239 WARN(cur_state
!= state
,
1240 "pipe %c assertion failure (expected %s, current %s)\n",
1241 pipe_name(pipe
), state_string(state
), state_string(cur_state
));
1244 static void assert_plane(struct drm_i915_private
*dev_priv
,
1245 enum plane plane
, bool state
)
1251 reg
= DSPCNTR(plane
);
1252 val
= I915_READ(reg
);
1253 cur_state
= !!(val
& DISPLAY_PLANE_ENABLE
);
1254 WARN(cur_state
!= state
,
1255 "plane %c assertion failure (expected %s, current %s)\n",
1256 plane_name(plane
), state_string(state
), state_string(cur_state
));
1259 #define assert_plane_enabled(d, p) assert_plane(d, p, true)
1260 #define assert_plane_disabled(d, p) assert_plane(d, p, false)
1262 static void assert_planes_disabled(struct drm_i915_private
*dev_priv
,
1269 /* Planes are fixed to pipes on ILK+ */
1270 if (HAS_PCH_SPLIT(dev_priv
->dev
) || IS_VALLEYVIEW(dev_priv
->dev
)) {
1271 reg
= DSPCNTR(pipe
);
1272 val
= I915_READ(reg
);
1273 WARN((val
& DISPLAY_PLANE_ENABLE
),
1274 "plane %c assertion failure, should be disabled but not\n",
1279 /* Need to check both planes against the pipe */
1280 for (i
= 0; i
< 2; i
++) {
1282 val
= I915_READ(reg
);
1283 cur_pipe
= (val
& DISPPLANE_SEL_PIPE_MASK
) >>
1284 DISPPLANE_SEL_PIPE_SHIFT
;
1285 WARN((val
& DISPLAY_PLANE_ENABLE
) && pipe
== cur_pipe
,
1286 "plane %c assertion failure, should be off on pipe %c but is still active\n",
1287 plane_name(i
), pipe_name(pipe
));
1291 static void assert_pch_refclk_enabled(struct drm_i915_private
*dev_priv
)
1296 if (HAS_PCH_LPT(dev_priv
->dev
)) {
1297 DRM_DEBUG_DRIVER("LPT does not has PCH refclk, skipping check\n");
1301 val
= I915_READ(PCH_DREF_CONTROL
);
1302 enabled
= !!(val
& (DREF_SSC_SOURCE_MASK
| DREF_NONSPREAD_SOURCE_MASK
|
1303 DREF_SUPERSPREAD_SOURCE_MASK
));
1304 WARN(!enabled
, "PCH refclk assertion failure, should be active but is disabled\n");
1307 static void assert_transcoder_disabled(struct drm_i915_private
*dev_priv
,
1314 reg
= TRANSCONF(pipe
);
1315 val
= I915_READ(reg
);
1316 enabled
= !!(val
& TRANS_ENABLE
);
1318 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1322 static bool dp_pipe_enabled(struct drm_i915_private
*dev_priv
,
1323 enum pipe pipe
, u32 port_sel
, u32 val
)
1325 if ((val
& DP_PORT_EN
) == 0)
1328 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1329 u32 trans_dp_ctl_reg
= TRANS_DP_CTL(pipe
);
1330 u32 trans_dp_ctl
= I915_READ(trans_dp_ctl_reg
);
1331 if ((trans_dp_ctl
& TRANS_DP_PORT_SEL_MASK
) != port_sel
)
1334 if ((val
& DP_PIPE_MASK
) != (pipe
<< 30))
1340 static bool hdmi_pipe_enabled(struct drm_i915_private
*dev_priv
,
1341 enum pipe pipe
, u32 val
)
1343 if ((val
& SDVO_ENABLE
) == 0)
1346 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1347 if ((val
& SDVO_PIPE_SEL_MASK_CPT
) != SDVO_PIPE_SEL_CPT(pipe
))
1350 if ((val
& SDVO_PIPE_SEL_MASK
) != SDVO_PIPE_SEL(pipe
))
1356 static bool lvds_pipe_enabled(struct drm_i915_private
*dev_priv
,
1357 enum pipe pipe
, u32 val
)
1359 if ((val
& LVDS_PORT_EN
) == 0)
1362 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1363 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1366 if ((val
& LVDS_PIPE_MASK
) != LVDS_PIPE(pipe
))
1372 static bool adpa_pipe_enabled(struct drm_i915_private
*dev_priv
,
1373 enum pipe pipe
, u32 val
)
1375 if ((val
& ADPA_DAC_ENABLE
) == 0)
1377 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1378 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1381 if ((val
& ADPA_PIPE_SELECT_MASK
) != ADPA_PIPE_SELECT(pipe
))
1387 static void assert_pch_dp_disabled(struct drm_i915_private
*dev_priv
,
1388 enum pipe pipe
, int reg
, u32 port_sel
)
1390 u32 val
= I915_READ(reg
);
1391 WARN(dp_pipe_enabled(dev_priv
, pipe
, port_sel
, val
),
1392 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
1393 reg
, pipe_name(pipe
));
1395 WARN(HAS_PCH_IBX(dev_priv
->dev
) && (val
& DP_PORT_EN
) == 0
1396 && (val
& DP_PIPEB_SELECT
),
1397 "IBX PCH dp port still using transcoder B\n");
1400 static void assert_pch_hdmi_disabled(struct drm_i915_private
*dev_priv
,
1401 enum pipe pipe
, int reg
)
1403 u32 val
= I915_READ(reg
);
1404 WARN(hdmi_pipe_enabled(dev_priv
, pipe
, val
),
1405 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
1406 reg
, pipe_name(pipe
));
1408 WARN(HAS_PCH_IBX(dev_priv
->dev
) && (val
& SDVO_ENABLE
) == 0
1409 && (val
& SDVO_PIPE_B_SELECT
),
1410 "IBX PCH hdmi port still using transcoder B\n");
1413 static void assert_pch_ports_disabled(struct drm_i915_private
*dev_priv
,
1419 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_B
, TRANS_DP_PORT_SEL_B
);
1420 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_C
, TRANS_DP_PORT_SEL_C
);
1421 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_D
, TRANS_DP_PORT_SEL_D
);
1424 val
= I915_READ(reg
);
1425 WARN(adpa_pipe_enabled(dev_priv
, pipe
, val
),
1426 "PCH VGA enabled on transcoder %c, should be disabled\n",
1430 val
= I915_READ(reg
);
1431 WARN(lvds_pipe_enabled(dev_priv
, pipe
, val
),
1432 "PCH LVDS enabled on transcoder %c, should be disabled\n",
1435 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIB
);
1436 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMIC
);
1437 assert_pch_hdmi_disabled(dev_priv
, pipe
, PCH_HDMID
);
1441 * intel_enable_pll - enable a PLL
1442 * @dev_priv: i915 private structure
1443 * @pipe: pipe PLL to enable
1445 * Enable @pipe's PLL so we can start pumping pixels from a plane. Check to
1446 * make sure the PLL reg is writable first though, since the panel write
1447 * protect mechanism may be enabled.
1449 * Note! This is for pre-ILK only.
1451 * Unfortunately needed by dvo_ns2501 since the dvo depends on it running.
1453 static void intel_enable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1458 /* No really, not for ILK+ */
1459 BUG_ON(!IS_VALLEYVIEW(dev_priv
->dev
) && dev_priv
->info
->gen
>= 5);
1461 /* PLL is protected by panel, make sure we can write it */
1462 if (IS_MOBILE(dev_priv
->dev
) && !IS_I830(dev_priv
->dev
))
1463 assert_panel_unlocked(dev_priv
, pipe
);
1466 val
= I915_READ(reg
);
1467 val
|= DPLL_VCO_ENABLE
;
1469 /* We do this three times for luck */
1470 I915_WRITE(reg
, val
);
1472 udelay(150); /* wait for warmup */
1473 I915_WRITE(reg
, val
);
1475 udelay(150); /* wait for warmup */
1476 I915_WRITE(reg
, val
);
1478 udelay(150); /* wait for warmup */
1482 * intel_disable_pll - disable a PLL
1483 * @dev_priv: i915 private structure
1484 * @pipe: pipe PLL to disable
1486 * Disable the PLL for @pipe, making sure the pipe is off first.
1488 * Note! This is for pre-ILK only.
1490 static void intel_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1495 /* Don't disable pipe A or pipe A PLLs if needed */
1496 if (pipe
== PIPE_A
&& (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
))
1499 /* Make sure the pipe isn't still relying on us */
1500 assert_pipe_disabled(dev_priv
, pipe
);
1503 val
= I915_READ(reg
);
1504 val
&= ~DPLL_VCO_ENABLE
;
1505 I915_WRITE(reg
, val
);
1511 intel_sbi_write(struct drm_i915_private
*dev_priv
, u16 reg
, u32 value
,
1512 enum intel_sbi_destination destination
)
1516 WARN_ON(!mutex_is_locked(&dev_priv
->dpio_lock
));
1518 if (wait_for((I915_READ(SBI_CTL_STAT
) & SBI_BUSY
) == 0,
1520 DRM_ERROR("timeout waiting for SBI to become ready\n");
1524 I915_WRITE(SBI_ADDR
, (reg
<< 16));
1525 I915_WRITE(SBI_DATA
, value
);
1527 if (destination
== SBI_ICLK
)
1528 tmp
= SBI_CTL_DEST_ICLK
| SBI_CTL_OP_CRWR
;
1530 tmp
= SBI_CTL_DEST_MPHY
| SBI_CTL_OP_IOWR
;
1531 I915_WRITE(SBI_CTL_STAT
, SBI_BUSY
| tmp
);
1533 if (wait_for((I915_READ(SBI_CTL_STAT
) & (SBI_BUSY
| SBI_RESPONSE_FAIL
)) == 0,
1535 DRM_ERROR("timeout waiting for SBI to complete write transaction\n");
1541 intel_sbi_read(struct drm_i915_private
*dev_priv
, u16 reg
,
1542 enum intel_sbi_destination destination
)
1545 WARN_ON(!mutex_is_locked(&dev_priv
->dpio_lock
));
1547 if (wait_for((I915_READ(SBI_CTL_STAT
) & SBI_BUSY
) == 0,
1549 DRM_ERROR("timeout waiting for SBI to become ready\n");
1553 I915_WRITE(SBI_ADDR
, (reg
<< 16));
1555 if (destination
== SBI_ICLK
)
1556 value
= SBI_CTL_DEST_ICLK
| SBI_CTL_OP_CRRD
;
1558 value
= SBI_CTL_DEST_MPHY
| SBI_CTL_OP_IORD
;
1559 I915_WRITE(SBI_CTL_STAT
, value
| SBI_BUSY
);
1561 if (wait_for((I915_READ(SBI_CTL_STAT
) & (SBI_BUSY
| SBI_RESPONSE_FAIL
)) == 0,
1563 DRM_ERROR("timeout waiting for SBI to complete read transaction\n");
1567 return I915_READ(SBI_DATA
);
1571 * ironlake_enable_pch_pll - enable PCH PLL
1572 * @dev_priv: i915 private structure
1573 * @pipe: pipe PLL to enable
1575 * The PCH PLL needs to be enabled before the PCH transcoder, since it
1576 * drives the transcoder clock.
1578 static void ironlake_enable_pch_pll(struct intel_crtc
*intel_crtc
)
1580 struct drm_i915_private
*dev_priv
= intel_crtc
->base
.dev
->dev_private
;
1581 struct intel_pch_pll
*pll
;
1585 /* PCH PLLs only available on ILK, SNB and IVB */
1586 BUG_ON(dev_priv
->info
->gen
< 5);
1587 pll
= intel_crtc
->pch_pll
;
1591 if (WARN_ON(pll
->refcount
== 0))
1594 DRM_DEBUG_KMS("enable PCH PLL %x (active %d, on? %d)for crtc %d\n",
1595 pll
->pll_reg
, pll
->active
, pll
->on
,
1596 intel_crtc
->base
.base
.id
);
1598 /* PCH refclock must be enabled first */
1599 assert_pch_refclk_enabled(dev_priv
);
1601 if (pll
->active
++ && pll
->on
) {
1602 assert_pch_pll_enabled(dev_priv
, pll
, NULL
);
1606 DRM_DEBUG_KMS("enabling PCH PLL %x\n", pll
->pll_reg
);
1609 val
= I915_READ(reg
);
1610 val
|= DPLL_VCO_ENABLE
;
1611 I915_WRITE(reg
, val
);
1618 static void intel_disable_pch_pll(struct intel_crtc
*intel_crtc
)
1620 struct drm_i915_private
*dev_priv
= intel_crtc
->base
.dev
->dev_private
;
1621 struct intel_pch_pll
*pll
= intel_crtc
->pch_pll
;
1625 /* PCH only available on ILK+ */
1626 BUG_ON(dev_priv
->info
->gen
< 5);
1630 if (WARN_ON(pll
->refcount
== 0))
1633 DRM_DEBUG_KMS("disable PCH PLL %x (active %d, on? %d) for crtc %d\n",
1634 pll
->pll_reg
, pll
->active
, pll
->on
,
1635 intel_crtc
->base
.base
.id
);
1637 if (WARN_ON(pll
->active
== 0)) {
1638 assert_pch_pll_disabled(dev_priv
, pll
, NULL
);
1642 if (--pll
->active
) {
1643 assert_pch_pll_enabled(dev_priv
, pll
, NULL
);
1647 DRM_DEBUG_KMS("disabling PCH PLL %x\n", pll
->pll_reg
);
1649 /* Make sure transcoder isn't still depending on us */
1650 assert_transcoder_disabled(dev_priv
, intel_crtc
->pipe
);
1653 val
= I915_READ(reg
);
1654 val
&= ~DPLL_VCO_ENABLE
;
1655 I915_WRITE(reg
, val
);
1662 static void ironlake_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1665 struct drm_device
*dev
= dev_priv
->dev
;
1666 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
1667 uint32_t reg
, val
, pipeconf_val
;
1669 /* PCH only available on ILK+ */
1670 BUG_ON(dev_priv
->info
->gen
< 5);
1672 /* Make sure PCH DPLL is enabled */
1673 assert_pch_pll_enabled(dev_priv
,
1674 to_intel_crtc(crtc
)->pch_pll
,
1675 to_intel_crtc(crtc
));
1677 /* FDI must be feeding us bits for PCH ports */
1678 assert_fdi_tx_enabled(dev_priv
, pipe
);
1679 assert_fdi_rx_enabled(dev_priv
, pipe
);
1681 if (HAS_PCH_CPT(dev
)) {
1682 /* Workaround: Set the timing override bit before enabling the
1683 * pch transcoder. */
1684 reg
= TRANS_CHICKEN2(pipe
);
1685 val
= I915_READ(reg
);
1686 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
1687 I915_WRITE(reg
, val
);
1690 reg
= TRANSCONF(pipe
);
1691 val
= I915_READ(reg
);
1692 pipeconf_val
= I915_READ(PIPECONF(pipe
));
1694 if (HAS_PCH_IBX(dev_priv
->dev
)) {
1696 * make the BPC in transcoder be consistent with
1697 * that in pipeconf reg.
1699 val
&= ~PIPECONF_BPC_MASK
;
1700 val
|= pipeconf_val
& PIPECONF_BPC_MASK
;
1703 val
&= ~TRANS_INTERLACE_MASK
;
1704 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK
) == PIPECONF_INTERLACED_ILK
)
1705 if (HAS_PCH_IBX(dev_priv
->dev
) &&
1706 intel_pipe_has_type(crtc
, INTEL_OUTPUT_SDVO
))
1707 val
|= TRANS_LEGACY_INTERLACED_ILK
;
1709 val
|= TRANS_INTERLACED
;
1711 val
|= TRANS_PROGRESSIVE
;
1713 I915_WRITE(reg
, val
| TRANS_ENABLE
);
1714 if (wait_for(I915_READ(reg
) & TRANS_STATE_ENABLE
, 100))
1715 DRM_ERROR("failed to enable transcoder %d\n", pipe
);
1718 static void lpt_enable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1719 enum transcoder cpu_transcoder
)
1721 u32 val
, pipeconf_val
;
1723 /* PCH only available on ILK+ */
1724 BUG_ON(dev_priv
->info
->gen
< 5);
1726 /* FDI must be feeding us bits for PCH ports */
1727 assert_fdi_tx_enabled(dev_priv
, (enum pipe
) cpu_transcoder
);
1728 assert_fdi_rx_enabled(dev_priv
, TRANSCODER_A
);
1730 /* Workaround: set timing override bit. */
1731 val
= I915_READ(_TRANSA_CHICKEN2
);
1732 val
|= TRANS_CHICKEN2_TIMING_OVERRIDE
;
1733 I915_WRITE(_TRANSA_CHICKEN2
, val
);
1736 pipeconf_val
= I915_READ(PIPECONF(cpu_transcoder
));
1738 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK_HSW
) ==
1739 PIPECONF_INTERLACED_ILK
)
1740 val
|= TRANS_INTERLACED
;
1742 val
|= TRANS_PROGRESSIVE
;
1744 I915_WRITE(TRANSCONF(TRANSCODER_A
), val
);
1745 if (wait_for(I915_READ(_TRANSACONF
) & TRANS_STATE_ENABLE
, 100))
1746 DRM_ERROR("Failed to enable PCH transcoder\n");
1749 static void ironlake_disable_pch_transcoder(struct drm_i915_private
*dev_priv
,
1752 struct drm_device
*dev
= dev_priv
->dev
;
1755 /* FDI relies on the transcoder */
1756 assert_fdi_tx_disabled(dev_priv
, pipe
);
1757 assert_fdi_rx_disabled(dev_priv
, pipe
);
1759 /* Ports must be off as well */
1760 assert_pch_ports_disabled(dev_priv
, pipe
);
1762 reg
= TRANSCONF(pipe
);
1763 val
= I915_READ(reg
);
1764 val
&= ~TRANS_ENABLE
;
1765 I915_WRITE(reg
, val
);
1766 /* wait for PCH transcoder off, transcoder state */
1767 if (wait_for((I915_READ(reg
) & TRANS_STATE_ENABLE
) == 0, 50))
1768 DRM_ERROR("failed to disable transcoder %d\n", pipe
);
1770 if (!HAS_PCH_IBX(dev
)) {
1771 /* Workaround: Clear the timing override chicken bit again. */
1772 reg
= TRANS_CHICKEN2(pipe
);
1773 val
= I915_READ(reg
);
1774 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
1775 I915_WRITE(reg
, val
);
1779 static void lpt_disable_pch_transcoder(struct drm_i915_private
*dev_priv
)
1783 val
= I915_READ(_TRANSACONF
);
1784 val
&= ~TRANS_ENABLE
;
1785 I915_WRITE(_TRANSACONF
, val
);
1786 /* wait for PCH transcoder off, transcoder state */
1787 if (wait_for((I915_READ(_TRANSACONF
) & TRANS_STATE_ENABLE
) == 0, 50))
1788 DRM_ERROR("Failed to disable PCH transcoder\n");
1790 /* Workaround: clear timing override bit. */
1791 val
= I915_READ(_TRANSA_CHICKEN2
);
1792 val
&= ~TRANS_CHICKEN2_TIMING_OVERRIDE
;
1793 I915_WRITE(_TRANSA_CHICKEN2
, val
);
1797 * intel_enable_pipe - enable a pipe, asserting requirements
1798 * @dev_priv: i915 private structure
1799 * @pipe: pipe to enable
1800 * @pch_port: on ILK+, is this pipe driving a PCH port or not
1802 * Enable @pipe, making sure that various hardware specific requirements
1803 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
1805 * @pipe should be %PIPE_A or %PIPE_B.
1807 * Will wait until the pipe is actually running (i.e. first vblank) before
1810 static void intel_enable_pipe(struct drm_i915_private
*dev_priv
, enum pipe pipe
,
1813 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1815 enum pipe pch_transcoder
;
1819 if (HAS_PCH_LPT(dev_priv
->dev
))
1820 pch_transcoder
= TRANSCODER_A
;
1822 pch_transcoder
= pipe
;
1825 * A pipe without a PLL won't actually be able to drive bits from
1826 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
1829 if (!HAS_PCH_SPLIT(dev_priv
->dev
))
1830 assert_pll_enabled(dev_priv
, pipe
);
1833 /* if driving the PCH, we need FDI enabled */
1834 assert_fdi_rx_pll_enabled(dev_priv
, pch_transcoder
);
1835 assert_fdi_tx_pll_enabled(dev_priv
,
1836 (enum pipe
) cpu_transcoder
);
1838 /* FIXME: assert CPU port conditions for SNB+ */
1841 reg
= PIPECONF(cpu_transcoder
);
1842 val
= I915_READ(reg
);
1843 if (val
& PIPECONF_ENABLE
)
1846 I915_WRITE(reg
, val
| PIPECONF_ENABLE
);
1847 intel_wait_for_vblank(dev_priv
->dev
, pipe
);
1851 * intel_disable_pipe - disable a pipe, asserting requirements
1852 * @dev_priv: i915 private structure
1853 * @pipe: pipe to disable
1855 * Disable @pipe, making sure that various hardware specific requirements
1856 * are met, if applicable, e.g. plane disabled, panel fitter off, etc.
1858 * @pipe should be %PIPE_A or %PIPE_B.
1860 * Will wait until the pipe has shut down before returning.
1862 static void intel_disable_pipe(struct drm_i915_private
*dev_priv
,
1865 enum transcoder cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
,
1871 * Make sure planes won't keep trying to pump pixels to us,
1872 * or we might hang the display.
1874 assert_planes_disabled(dev_priv
, pipe
);
1876 /* Don't disable pipe A or pipe A PLLs if needed */
1877 if (pipe
== PIPE_A
&& (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
))
1880 reg
= PIPECONF(cpu_transcoder
);
1881 val
= I915_READ(reg
);
1882 if ((val
& PIPECONF_ENABLE
) == 0)
1885 I915_WRITE(reg
, val
& ~PIPECONF_ENABLE
);
1886 intel_wait_for_pipe_off(dev_priv
->dev
, pipe
);
1890 * Plane regs are double buffered, going from enabled->disabled needs a
1891 * trigger in order to latch. The display address reg provides this.
1893 void intel_flush_display_plane(struct drm_i915_private
*dev_priv
,
1896 if (dev_priv
->info
->gen
>= 4)
1897 I915_WRITE(DSPSURF(plane
), I915_READ(DSPSURF(plane
)));
1899 I915_WRITE(DSPADDR(plane
), I915_READ(DSPADDR(plane
)));
1903 * intel_enable_plane - enable a display plane on a given pipe
1904 * @dev_priv: i915 private structure
1905 * @plane: plane to enable
1906 * @pipe: pipe being fed
1908 * Enable @plane on @pipe, making sure that @pipe is running first.
1910 static void intel_enable_plane(struct drm_i915_private
*dev_priv
,
1911 enum plane plane
, enum pipe pipe
)
1916 /* If the pipe isn't enabled, we can't pump pixels and may hang */
1917 assert_pipe_enabled(dev_priv
, pipe
);
1919 reg
= DSPCNTR(plane
);
1920 val
= I915_READ(reg
);
1921 if (val
& DISPLAY_PLANE_ENABLE
)
1924 I915_WRITE(reg
, val
| DISPLAY_PLANE_ENABLE
);
1925 intel_flush_display_plane(dev_priv
, plane
);
1926 intel_wait_for_vblank(dev_priv
->dev
, pipe
);
1930 * intel_disable_plane - disable a display plane
1931 * @dev_priv: i915 private structure
1932 * @plane: plane to disable
1933 * @pipe: pipe consuming the data
1935 * Disable @plane; should be an independent operation.
1937 static void intel_disable_plane(struct drm_i915_private
*dev_priv
,
1938 enum plane plane
, enum pipe pipe
)
1943 reg
= DSPCNTR(plane
);
1944 val
= I915_READ(reg
);
1945 if ((val
& DISPLAY_PLANE_ENABLE
) == 0)
1948 I915_WRITE(reg
, val
& ~DISPLAY_PLANE_ENABLE
);
1949 intel_flush_display_plane(dev_priv
, plane
);
1950 intel_wait_for_vblank(dev_priv
->dev
, pipe
);
1953 static bool need_vtd_wa(struct drm_device
*dev
)
1955 #ifdef CONFIG_INTEL_IOMMU
1956 if (INTEL_INFO(dev
)->gen
>= 6 && intel_iommu_gfx_mapped
)
1963 intel_pin_and_fence_fb_obj(struct drm_device
*dev
,
1964 struct drm_i915_gem_object
*obj
,
1965 struct intel_ring_buffer
*pipelined
)
1967 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1971 switch (obj
->tiling_mode
) {
1972 case I915_TILING_NONE
:
1973 if (IS_BROADWATER(dev
) || IS_CRESTLINE(dev
))
1974 alignment
= 128 * 1024;
1975 else if (INTEL_INFO(dev
)->gen
>= 4)
1976 alignment
= 4 * 1024;
1978 alignment
= 64 * 1024;
1981 /* pin() will align the object as required by fence */
1985 /* FIXME: Is this true? */
1986 DRM_ERROR("Y tiled not allowed for scan out buffers\n");
1992 /* Note that the w/a also requires 64 PTE of padding following the
1993 * bo. We currently fill all unused PTE with the shadow page and so
1994 * we should always have valid PTE following the scanout preventing
1997 if (need_vtd_wa(dev
) && alignment
< 256 * 1024)
1998 alignment
= 256 * 1024;
2000 dev_priv
->mm
.interruptible
= false;
2001 ret
= i915_gem_object_pin_to_display_plane(obj
, alignment
, pipelined
);
2003 goto err_interruptible
;
2005 /* Install a fence for tiled scan-out. Pre-i965 always needs a
2006 * fence, whereas 965+ only requires a fence if using
2007 * framebuffer compression. For simplicity, we always install
2008 * a fence as the cost is not that onerous.
2010 ret
= i915_gem_object_get_fence(obj
);
2014 i915_gem_object_pin_fence(obj
);
2016 dev_priv
->mm
.interruptible
= true;
2020 i915_gem_object_unpin(obj
);
2022 dev_priv
->mm
.interruptible
= true;
2026 void intel_unpin_fb_obj(struct drm_i915_gem_object
*obj
)
2028 i915_gem_object_unpin_fence(obj
);
2029 i915_gem_object_unpin(obj
);
2032 /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel
2033 * is assumed to be a power-of-two. */
2034 unsigned long intel_gen4_compute_page_offset(int *x
, int *y
,
2035 unsigned int tiling_mode
,
2039 if (tiling_mode
!= I915_TILING_NONE
) {
2040 unsigned int tile_rows
, tiles
;
2045 tiles
= *x
/ (512/cpp
);
2048 return tile_rows
* pitch
* 8 + tiles
* 4096;
2050 unsigned int offset
;
2052 offset
= *y
* pitch
+ *x
* cpp
;
2054 *x
= (offset
& 4095) / cpp
;
2055 return offset
& -4096;
2059 static int i9xx_update_plane(struct drm_crtc
*crtc
, struct drm_framebuffer
*fb
,
2062 struct drm_device
*dev
= crtc
->dev
;
2063 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2064 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2065 struct intel_framebuffer
*intel_fb
;
2066 struct drm_i915_gem_object
*obj
;
2067 int plane
= intel_crtc
->plane
;
2068 unsigned long linear_offset
;
2077 DRM_ERROR("Can't update plane %d in SAREA\n", plane
);
2081 intel_fb
= to_intel_framebuffer(fb
);
2082 obj
= intel_fb
->obj
;
2084 reg
= DSPCNTR(plane
);
2085 dspcntr
= I915_READ(reg
);
2086 /* Mask out pixel format bits in case we change it */
2087 dspcntr
&= ~DISPPLANE_PIXFORMAT_MASK
;
2088 switch (fb
->pixel_format
) {
2090 dspcntr
|= DISPPLANE_8BPP
;
2092 case DRM_FORMAT_XRGB1555
:
2093 case DRM_FORMAT_ARGB1555
:
2094 dspcntr
|= DISPPLANE_BGRX555
;
2096 case DRM_FORMAT_RGB565
:
2097 dspcntr
|= DISPPLANE_BGRX565
;
2099 case DRM_FORMAT_XRGB8888
:
2100 case DRM_FORMAT_ARGB8888
:
2101 dspcntr
|= DISPPLANE_BGRX888
;
2103 case DRM_FORMAT_XBGR8888
:
2104 case DRM_FORMAT_ABGR8888
:
2105 dspcntr
|= DISPPLANE_RGBX888
;
2107 case DRM_FORMAT_XRGB2101010
:
2108 case DRM_FORMAT_ARGB2101010
:
2109 dspcntr
|= DISPPLANE_BGRX101010
;
2111 case DRM_FORMAT_XBGR2101010
:
2112 case DRM_FORMAT_ABGR2101010
:
2113 dspcntr
|= DISPPLANE_RGBX101010
;
2119 if (INTEL_INFO(dev
)->gen
>= 4) {
2120 if (obj
->tiling_mode
!= I915_TILING_NONE
)
2121 dspcntr
|= DISPPLANE_TILED
;
2123 dspcntr
&= ~DISPPLANE_TILED
;
2126 I915_WRITE(reg
, dspcntr
);
2128 linear_offset
= y
* fb
->pitches
[0] + x
* (fb
->bits_per_pixel
/ 8);
2130 if (INTEL_INFO(dev
)->gen
>= 4) {
2131 intel_crtc
->dspaddr_offset
=
2132 intel_gen4_compute_page_offset(&x
, &y
, obj
->tiling_mode
,
2133 fb
->bits_per_pixel
/ 8,
2135 linear_offset
-= intel_crtc
->dspaddr_offset
;
2137 intel_crtc
->dspaddr_offset
= linear_offset
;
2140 DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n",
2141 obj
->gtt_offset
, linear_offset
, x
, y
, fb
->pitches
[0]);
2142 I915_WRITE(DSPSTRIDE(plane
), fb
->pitches
[0]);
2143 if (INTEL_INFO(dev
)->gen
>= 4) {
2144 I915_MODIFY_DISPBASE(DSPSURF(plane
),
2145 obj
->gtt_offset
+ intel_crtc
->dspaddr_offset
);
2146 I915_WRITE(DSPTILEOFF(plane
), (y
<< 16) | x
);
2147 I915_WRITE(DSPLINOFF(plane
), linear_offset
);
2149 I915_WRITE(DSPADDR(plane
), obj
->gtt_offset
+ linear_offset
);
2155 static int ironlake_update_plane(struct drm_crtc
*crtc
,
2156 struct drm_framebuffer
*fb
, int x
, int y
)
2158 struct drm_device
*dev
= crtc
->dev
;
2159 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2160 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2161 struct intel_framebuffer
*intel_fb
;
2162 struct drm_i915_gem_object
*obj
;
2163 int plane
= intel_crtc
->plane
;
2164 unsigned long linear_offset
;
2174 DRM_ERROR("Can't update plane %d in SAREA\n", plane
);
2178 intel_fb
= to_intel_framebuffer(fb
);
2179 obj
= intel_fb
->obj
;
2181 reg
= DSPCNTR(plane
);
2182 dspcntr
= I915_READ(reg
);
2183 /* Mask out pixel format bits in case we change it */
2184 dspcntr
&= ~DISPPLANE_PIXFORMAT_MASK
;
2185 switch (fb
->pixel_format
) {
2187 dspcntr
|= DISPPLANE_8BPP
;
2189 case DRM_FORMAT_RGB565
:
2190 dspcntr
|= DISPPLANE_BGRX565
;
2192 case DRM_FORMAT_XRGB8888
:
2193 case DRM_FORMAT_ARGB8888
:
2194 dspcntr
|= DISPPLANE_BGRX888
;
2196 case DRM_FORMAT_XBGR8888
:
2197 case DRM_FORMAT_ABGR8888
:
2198 dspcntr
|= DISPPLANE_RGBX888
;
2200 case DRM_FORMAT_XRGB2101010
:
2201 case DRM_FORMAT_ARGB2101010
:
2202 dspcntr
|= DISPPLANE_BGRX101010
;
2204 case DRM_FORMAT_XBGR2101010
:
2205 case DRM_FORMAT_ABGR2101010
:
2206 dspcntr
|= DISPPLANE_RGBX101010
;
2212 if (obj
->tiling_mode
!= I915_TILING_NONE
)
2213 dspcntr
|= DISPPLANE_TILED
;
2215 dspcntr
&= ~DISPPLANE_TILED
;
2218 dspcntr
|= DISPPLANE_TRICKLE_FEED_DISABLE
;
2220 I915_WRITE(reg
, dspcntr
);
2222 linear_offset
= y
* fb
->pitches
[0] + x
* (fb
->bits_per_pixel
/ 8);
2223 intel_crtc
->dspaddr_offset
=
2224 intel_gen4_compute_page_offset(&x
, &y
, obj
->tiling_mode
,
2225 fb
->bits_per_pixel
/ 8,
2227 linear_offset
-= intel_crtc
->dspaddr_offset
;
2229 DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n",
2230 obj
->gtt_offset
, linear_offset
, x
, y
, fb
->pitches
[0]);
2231 I915_WRITE(DSPSTRIDE(plane
), fb
->pitches
[0]);
2232 I915_MODIFY_DISPBASE(DSPSURF(plane
),
2233 obj
->gtt_offset
+ intel_crtc
->dspaddr_offset
);
2234 if (IS_HASWELL(dev
)) {
2235 I915_WRITE(DSPOFFSET(plane
), (y
<< 16) | x
);
2237 I915_WRITE(DSPTILEOFF(plane
), (y
<< 16) | x
);
2238 I915_WRITE(DSPLINOFF(plane
), linear_offset
);
2245 /* Assume fb object is pinned & idle & fenced and just update base pointers */
2247 intel_pipe_set_base_atomic(struct drm_crtc
*crtc
, struct drm_framebuffer
*fb
,
2248 int x
, int y
, enum mode_set_atomic state
)
2250 struct drm_device
*dev
= crtc
->dev
;
2251 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2253 if (dev_priv
->display
.disable_fbc
)
2254 dev_priv
->display
.disable_fbc(dev
);
2255 intel_increase_pllclock(crtc
);
2257 return dev_priv
->display
.update_plane(crtc
, fb
, x
, y
);
2260 void intel_display_handle_reset(struct drm_device
*dev
)
2262 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2263 struct drm_crtc
*crtc
;
2266 * Flips in the rings have been nuked by the reset,
2267 * so complete all pending flips so that user space
2268 * will get its events and not get stuck.
2270 * Also update the base address of all primary
2271 * planes to the the last fb to make sure we're
2272 * showing the correct fb after a reset.
2274 * Need to make two loops over the crtcs so that we
2275 * don't try to grab a crtc mutex before the
2276 * pending_flip_queue really got woken up.
2279 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
2280 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2281 enum plane plane
= intel_crtc
->plane
;
2283 intel_prepare_page_flip(dev
, plane
);
2284 intel_finish_page_flip_plane(dev
, plane
);
2287 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
2288 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2290 mutex_lock(&crtc
->mutex
);
2291 if (intel_crtc
->active
)
2292 dev_priv
->display
.update_plane(crtc
, crtc
->fb
,
2294 mutex_unlock(&crtc
->mutex
);
2299 intel_finish_fb(struct drm_framebuffer
*old_fb
)
2301 struct drm_i915_gem_object
*obj
= to_intel_framebuffer(old_fb
)->obj
;
2302 struct drm_i915_private
*dev_priv
= obj
->base
.dev
->dev_private
;
2303 bool was_interruptible
= dev_priv
->mm
.interruptible
;
2306 /* Big Hammer, we also need to ensure that any pending
2307 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
2308 * current scanout is retired before unpinning the old
2311 * This should only fail upon a hung GPU, in which case we
2312 * can safely continue.
2314 dev_priv
->mm
.interruptible
= false;
2315 ret
= i915_gem_object_finish_gpu(obj
);
2316 dev_priv
->mm
.interruptible
= was_interruptible
;
2321 static void intel_crtc_update_sarea_pos(struct drm_crtc
*crtc
, int x
, int y
)
2323 struct drm_device
*dev
= crtc
->dev
;
2324 struct drm_i915_master_private
*master_priv
;
2325 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2327 if (!dev
->primary
->master
)
2330 master_priv
= dev
->primary
->master
->driver_priv
;
2331 if (!master_priv
->sarea_priv
)
2334 switch (intel_crtc
->pipe
) {
2336 master_priv
->sarea_priv
->pipeA_x
= x
;
2337 master_priv
->sarea_priv
->pipeA_y
= y
;
2340 master_priv
->sarea_priv
->pipeB_x
= x
;
2341 master_priv
->sarea_priv
->pipeB_y
= y
;
2349 intel_pipe_set_base(struct drm_crtc
*crtc
, int x
, int y
,
2350 struct drm_framebuffer
*fb
)
2352 struct drm_device
*dev
= crtc
->dev
;
2353 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2354 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2355 struct drm_framebuffer
*old_fb
;
2360 DRM_ERROR("No FB bound\n");
2364 if (intel_crtc
->plane
> INTEL_INFO(dev
)->num_pipes
) {
2365 DRM_ERROR("no plane for crtc: plane %d, num_pipes %d\n",
2367 INTEL_INFO(dev
)->num_pipes
);
2371 mutex_lock(&dev
->struct_mutex
);
2372 ret
= intel_pin_and_fence_fb_obj(dev
,
2373 to_intel_framebuffer(fb
)->obj
,
2376 mutex_unlock(&dev
->struct_mutex
);
2377 DRM_ERROR("pin & fence failed\n");
2381 ret
= dev_priv
->display
.update_plane(crtc
, fb
, x
, y
);
2383 intel_unpin_fb_obj(to_intel_framebuffer(fb
)->obj
);
2384 mutex_unlock(&dev
->struct_mutex
);
2385 DRM_ERROR("failed to update base address\n");
2395 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
2396 intel_unpin_fb_obj(to_intel_framebuffer(old_fb
)->obj
);
2399 intel_update_fbc(dev
);
2400 mutex_unlock(&dev
->struct_mutex
);
2402 intel_crtc_update_sarea_pos(crtc
, x
, y
);
2407 static void intel_fdi_normal_train(struct drm_crtc
*crtc
)
2409 struct drm_device
*dev
= crtc
->dev
;
2410 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2411 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2412 int pipe
= intel_crtc
->pipe
;
2415 /* enable normal train */
2416 reg
= FDI_TX_CTL(pipe
);
2417 temp
= I915_READ(reg
);
2418 if (IS_IVYBRIDGE(dev
)) {
2419 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
2420 temp
|= FDI_LINK_TRAIN_NONE_IVB
| FDI_TX_ENHANCE_FRAME_ENABLE
;
2422 temp
&= ~FDI_LINK_TRAIN_NONE
;
2423 temp
|= FDI_LINK_TRAIN_NONE
| FDI_TX_ENHANCE_FRAME_ENABLE
;
2425 I915_WRITE(reg
, temp
);
2427 reg
= FDI_RX_CTL(pipe
);
2428 temp
= I915_READ(reg
);
2429 if (HAS_PCH_CPT(dev
)) {
2430 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2431 temp
|= FDI_LINK_TRAIN_NORMAL_CPT
;
2433 temp
&= ~FDI_LINK_TRAIN_NONE
;
2434 temp
|= FDI_LINK_TRAIN_NONE
;
2436 I915_WRITE(reg
, temp
| FDI_RX_ENHANCE_FRAME_ENABLE
);
2438 /* wait one idle pattern time */
2442 /* IVB wants error correction enabled */
2443 if (IS_IVYBRIDGE(dev
))
2444 I915_WRITE(reg
, I915_READ(reg
) | FDI_FS_ERRC_ENABLE
|
2445 FDI_FE_ERRC_ENABLE
);
2448 static void ivb_modeset_global_resources(struct drm_device
*dev
)
2450 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2451 struct intel_crtc
*pipe_B_crtc
=
2452 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[PIPE_B
]);
2453 struct intel_crtc
*pipe_C_crtc
=
2454 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[PIPE_C
]);
2457 /* When everything is off disable fdi C so that we could enable fdi B
2458 * with all lanes. XXX: This misses the case where a pipe is not using
2459 * any pch resources and so doesn't need any fdi lanes. */
2460 if (!pipe_B_crtc
->base
.enabled
&& !pipe_C_crtc
->base
.enabled
) {
2461 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B
)) & FDI_RX_ENABLE
);
2462 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C
)) & FDI_RX_ENABLE
);
2464 temp
= I915_READ(SOUTH_CHICKEN1
);
2465 temp
&= ~FDI_BC_BIFURCATION_SELECT
;
2466 DRM_DEBUG_KMS("disabling fdi C rx\n");
2467 I915_WRITE(SOUTH_CHICKEN1
, temp
);
2471 /* The FDI link training functions for ILK/Ibexpeak. */
2472 static void ironlake_fdi_link_train(struct drm_crtc
*crtc
)
2474 struct drm_device
*dev
= crtc
->dev
;
2475 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2476 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2477 int pipe
= intel_crtc
->pipe
;
2478 int plane
= intel_crtc
->plane
;
2479 u32 reg
, temp
, tries
;
2481 /* FDI needs bits from pipe & plane first */
2482 assert_pipe_enabled(dev_priv
, pipe
);
2483 assert_plane_enabled(dev_priv
, plane
);
2485 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2487 reg
= FDI_RX_IMR(pipe
);
2488 temp
= I915_READ(reg
);
2489 temp
&= ~FDI_RX_SYMBOL_LOCK
;
2490 temp
&= ~FDI_RX_BIT_LOCK
;
2491 I915_WRITE(reg
, temp
);
2495 /* enable CPU FDI TX and PCH FDI RX */
2496 reg
= FDI_TX_CTL(pipe
);
2497 temp
= I915_READ(reg
);
2499 temp
|= (intel_crtc
->fdi_lanes
- 1) << 19;
2500 temp
&= ~FDI_LINK_TRAIN_NONE
;
2501 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2502 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
2504 reg
= FDI_RX_CTL(pipe
);
2505 temp
= I915_READ(reg
);
2506 temp
&= ~FDI_LINK_TRAIN_NONE
;
2507 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2508 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
2513 /* Ironlake workaround, enable clock pointer after FDI enable*/
2514 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
2515 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
|
2516 FDI_RX_PHASE_SYNC_POINTER_EN
);
2518 reg
= FDI_RX_IIR(pipe
);
2519 for (tries
= 0; tries
< 5; tries
++) {
2520 temp
= I915_READ(reg
);
2521 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2523 if ((temp
& FDI_RX_BIT_LOCK
)) {
2524 DRM_DEBUG_KMS("FDI train 1 done.\n");
2525 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
2530 DRM_ERROR("FDI train 1 fail!\n");
2533 reg
= FDI_TX_CTL(pipe
);
2534 temp
= I915_READ(reg
);
2535 temp
&= ~FDI_LINK_TRAIN_NONE
;
2536 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2537 I915_WRITE(reg
, temp
);
2539 reg
= FDI_RX_CTL(pipe
);
2540 temp
= I915_READ(reg
);
2541 temp
&= ~FDI_LINK_TRAIN_NONE
;
2542 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2543 I915_WRITE(reg
, temp
);
2548 reg
= FDI_RX_IIR(pipe
);
2549 for (tries
= 0; tries
< 5; tries
++) {
2550 temp
= I915_READ(reg
);
2551 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2553 if (temp
& FDI_RX_SYMBOL_LOCK
) {
2554 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
2555 DRM_DEBUG_KMS("FDI train 2 done.\n");
2560 DRM_ERROR("FDI train 2 fail!\n");
2562 DRM_DEBUG_KMS("FDI train done\n");
2566 static const int snb_b_fdi_train_param
[] = {
2567 FDI_LINK_TRAIN_400MV_0DB_SNB_B
,
2568 FDI_LINK_TRAIN_400MV_6DB_SNB_B
,
2569 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B
,
2570 FDI_LINK_TRAIN_800MV_0DB_SNB_B
,
2573 /* The FDI link training functions for SNB/Cougarpoint. */
2574 static void gen6_fdi_link_train(struct drm_crtc
*crtc
)
2576 struct drm_device
*dev
= crtc
->dev
;
2577 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2578 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2579 int pipe
= intel_crtc
->pipe
;
2580 u32 reg
, temp
, i
, retry
;
2582 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2584 reg
= FDI_RX_IMR(pipe
);
2585 temp
= I915_READ(reg
);
2586 temp
&= ~FDI_RX_SYMBOL_LOCK
;
2587 temp
&= ~FDI_RX_BIT_LOCK
;
2588 I915_WRITE(reg
, temp
);
2593 /* enable CPU FDI TX and PCH FDI RX */
2594 reg
= FDI_TX_CTL(pipe
);
2595 temp
= I915_READ(reg
);
2597 temp
|= (intel_crtc
->fdi_lanes
- 1) << 19;
2598 temp
&= ~FDI_LINK_TRAIN_NONE
;
2599 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2600 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2602 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
2603 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
2605 I915_WRITE(FDI_RX_MISC(pipe
),
2606 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
2608 reg
= FDI_RX_CTL(pipe
);
2609 temp
= I915_READ(reg
);
2610 if (HAS_PCH_CPT(dev
)) {
2611 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2612 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
2614 temp
&= ~FDI_LINK_TRAIN_NONE
;
2615 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2617 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
2622 for (i
= 0; i
< 4; i
++) {
2623 reg
= FDI_TX_CTL(pipe
);
2624 temp
= I915_READ(reg
);
2625 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2626 temp
|= snb_b_fdi_train_param
[i
];
2627 I915_WRITE(reg
, temp
);
2632 for (retry
= 0; retry
< 5; retry
++) {
2633 reg
= FDI_RX_IIR(pipe
);
2634 temp
= I915_READ(reg
);
2635 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2636 if (temp
& FDI_RX_BIT_LOCK
) {
2637 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
2638 DRM_DEBUG_KMS("FDI train 1 done.\n");
2647 DRM_ERROR("FDI train 1 fail!\n");
2650 reg
= FDI_TX_CTL(pipe
);
2651 temp
= I915_READ(reg
);
2652 temp
&= ~FDI_LINK_TRAIN_NONE
;
2653 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2655 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2657 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
2659 I915_WRITE(reg
, temp
);
2661 reg
= FDI_RX_CTL(pipe
);
2662 temp
= I915_READ(reg
);
2663 if (HAS_PCH_CPT(dev
)) {
2664 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2665 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
2667 temp
&= ~FDI_LINK_TRAIN_NONE
;
2668 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2670 I915_WRITE(reg
, temp
);
2675 for (i
= 0; i
< 4; i
++) {
2676 reg
= FDI_TX_CTL(pipe
);
2677 temp
= I915_READ(reg
);
2678 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2679 temp
|= snb_b_fdi_train_param
[i
];
2680 I915_WRITE(reg
, temp
);
2685 for (retry
= 0; retry
< 5; retry
++) {
2686 reg
= FDI_RX_IIR(pipe
);
2687 temp
= I915_READ(reg
);
2688 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2689 if (temp
& FDI_RX_SYMBOL_LOCK
) {
2690 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
2691 DRM_DEBUG_KMS("FDI train 2 done.\n");
2700 DRM_ERROR("FDI train 2 fail!\n");
2702 DRM_DEBUG_KMS("FDI train done.\n");
2705 /* Manual link training for Ivy Bridge A0 parts */
2706 static void ivb_manual_fdi_link_train(struct drm_crtc
*crtc
)
2708 struct drm_device
*dev
= crtc
->dev
;
2709 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2710 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2711 int pipe
= intel_crtc
->pipe
;
2714 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2716 reg
= FDI_RX_IMR(pipe
);
2717 temp
= I915_READ(reg
);
2718 temp
&= ~FDI_RX_SYMBOL_LOCK
;
2719 temp
&= ~FDI_RX_BIT_LOCK
;
2720 I915_WRITE(reg
, temp
);
2725 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
2726 I915_READ(FDI_RX_IIR(pipe
)));
2728 /* enable CPU FDI TX and PCH FDI RX */
2729 reg
= FDI_TX_CTL(pipe
);
2730 temp
= I915_READ(reg
);
2732 temp
|= (intel_crtc
->fdi_lanes
- 1) << 19;
2733 temp
&= ~(FDI_LINK_TRAIN_AUTO
| FDI_LINK_TRAIN_NONE_IVB
);
2734 temp
|= FDI_LINK_TRAIN_PATTERN_1_IVB
;
2735 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2736 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
2737 temp
|= FDI_COMPOSITE_SYNC
;
2738 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
2740 I915_WRITE(FDI_RX_MISC(pipe
),
2741 FDI_RX_TP1_TO_TP2_48
| FDI_RX_FDI_DELAY_90
);
2743 reg
= FDI_RX_CTL(pipe
);
2744 temp
= I915_READ(reg
);
2745 temp
&= ~FDI_LINK_TRAIN_AUTO
;
2746 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2747 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
2748 temp
|= FDI_COMPOSITE_SYNC
;
2749 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
2754 for (i
= 0; i
< 4; i
++) {
2755 reg
= FDI_TX_CTL(pipe
);
2756 temp
= I915_READ(reg
);
2757 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2758 temp
|= snb_b_fdi_train_param
[i
];
2759 I915_WRITE(reg
, temp
);
2764 reg
= FDI_RX_IIR(pipe
);
2765 temp
= I915_READ(reg
);
2766 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2768 if (temp
& FDI_RX_BIT_LOCK
||
2769 (I915_READ(reg
) & FDI_RX_BIT_LOCK
)) {
2770 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
2771 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n", i
);
2776 DRM_ERROR("FDI train 1 fail!\n");
2779 reg
= FDI_TX_CTL(pipe
);
2780 temp
= I915_READ(reg
);
2781 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
2782 temp
|= FDI_LINK_TRAIN_PATTERN_2_IVB
;
2783 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2784 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
2785 I915_WRITE(reg
, temp
);
2787 reg
= FDI_RX_CTL(pipe
);
2788 temp
= I915_READ(reg
);
2789 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2790 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
2791 I915_WRITE(reg
, temp
);
2796 for (i
= 0; i
< 4; i
++) {
2797 reg
= FDI_TX_CTL(pipe
);
2798 temp
= I915_READ(reg
);
2799 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2800 temp
|= snb_b_fdi_train_param
[i
];
2801 I915_WRITE(reg
, temp
);
2806 reg
= FDI_RX_IIR(pipe
);
2807 temp
= I915_READ(reg
);
2808 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2810 if (temp
& FDI_RX_SYMBOL_LOCK
) {
2811 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
2812 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n", i
);
2817 DRM_ERROR("FDI train 2 fail!\n");
2819 DRM_DEBUG_KMS("FDI train done.\n");
2822 static void ironlake_fdi_pll_enable(struct intel_crtc
*intel_crtc
)
2824 struct drm_device
*dev
= intel_crtc
->base
.dev
;
2825 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2826 int pipe
= intel_crtc
->pipe
;
2830 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
2831 reg
= FDI_RX_CTL(pipe
);
2832 temp
= I915_READ(reg
);
2833 temp
&= ~((0x7 << 19) | (0x7 << 16));
2834 temp
|= (intel_crtc
->fdi_lanes
- 1) << 19;
2835 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
2836 I915_WRITE(reg
, temp
| FDI_RX_PLL_ENABLE
);
2841 /* Switch from Rawclk to PCDclk */
2842 temp
= I915_READ(reg
);
2843 I915_WRITE(reg
, temp
| FDI_PCDCLK
);
2848 /* Enable CPU FDI TX PLL, always on for Ironlake */
2849 reg
= FDI_TX_CTL(pipe
);
2850 temp
= I915_READ(reg
);
2851 if ((temp
& FDI_TX_PLL_ENABLE
) == 0) {
2852 I915_WRITE(reg
, temp
| FDI_TX_PLL_ENABLE
);
2859 static void ironlake_fdi_pll_disable(struct intel_crtc
*intel_crtc
)
2861 struct drm_device
*dev
= intel_crtc
->base
.dev
;
2862 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2863 int pipe
= intel_crtc
->pipe
;
2866 /* Switch from PCDclk to Rawclk */
2867 reg
= FDI_RX_CTL(pipe
);
2868 temp
= I915_READ(reg
);
2869 I915_WRITE(reg
, temp
& ~FDI_PCDCLK
);
2871 /* Disable CPU FDI TX PLL */
2872 reg
= FDI_TX_CTL(pipe
);
2873 temp
= I915_READ(reg
);
2874 I915_WRITE(reg
, temp
& ~FDI_TX_PLL_ENABLE
);
2879 reg
= FDI_RX_CTL(pipe
);
2880 temp
= I915_READ(reg
);
2881 I915_WRITE(reg
, temp
& ~FDI_RX_PLL_ENABLE
);
2883 /* Wait for the clocks to turn off. */
2888 static void ironlake_fdi_disable(struct drm_crtc
*crtc
)
2890 struct drm_device
*dev
= crtc
->dev
;
2891 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2892 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2893 int pipe
= intel_crtc
->pipe
;
2896 /* disable CPU FDI tx and PCH FDI rx */
2897 reg
= FDI_TX_CTL(pipe
);
2898 temp
= I915_READ(reg
);
2899 I915_WRITE(reg
, temp
& ~FDI_TX_ENABLE
);
2902 reg
= FDI_RX_CTL(pipe
);
2903 temp
= I915_READ(reg
);
2904 temp
&= ~(0x7 << 16);
2905 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
2906 I915_WRITE(reg
, temp
& ~FDI_RX_ENABLE
);
2911 /* Ironlake workaround, disable clock pointer after downing FDI */
2912 if (HAS_PCH_IBX(dev
)) {
2913 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
2916 /* still set train pattern 1 */
2917 reg
= FDI_TX_CTL(pipe
);
2918 temp
= I915_READ(reg
);
2919 temp
&= ~FDI_LINK_TRAIN_NONE
;
2920 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2921 I915_WRITE(reg
, temp
);
2923 reg
= FDI_RX_CTL(pipe
);
2924 temp
= I915_READ(reg
);
2925 if (HAS_PCH_CPT(dev
)) {
2926 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2927 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
2929 temp
&= ~FDI_LINK_TRAIN_NONE
;
2930 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2932 /* BPC in FDI rx is consistent with that in PIPECONF */
2933 temp
&= ~(0x07 << 16);
2934 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) << 11;
2935 I915_WRITE(reg
, temp
);
2941 static bool intel_crtc_has_pending_flip(struct drm_crtc
*crtc
)
2943 struct drm_device
*dev
= crtc
->dev
;
2944 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2945 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2946 unsigned long flags
;
2949 if (i915_reset_in_progress(&dev_priv
->gpu_error
) ||
2950 intel_crtc
->reset_counter
!= atomic_read(&dev_priv
->gpu_error
.reset_counter
))
2953 spin_lock_irqsave(&dev
->event_lock
, flags
);
2954 pending
= to_intel_crtc(crtc
)->unpin_work
!= NULL
;
2955 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
2960 static void intel_crtc_wait_for_pending_flips(struct drm_crtc
*crtc
)
2962 struct drm_device
*dev
= crtc
->dev
;
2963 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2965 if (crtc
->fb
== NULL
)
2968 WARN_ON(waitqueue_active(&dev_priv
->pending_flip_queue
));
2970 wait_event(dev_priv
->pending_flip_queue
,
2971 !intel_crtc_has_pending_flip(crtc
));
2973 mutex_lock(&dev
->struct_mutex
);
2974 intel_finish_fb(crtc
->fb
);
2975 mutex_unlock(&dev
->struct_mutex
);
2978 static bool haswell_crtc_driving_pch(struct drm_crtc
*crtc
)
2980 return intel_pipe_has_type(crtc
, INTEL_OUTPUT_ANALOG
);
2983 /* Program iCLKIP clock to the desired frequency */
2984 static void lpt_program_iclkip(struct drm_crtc
*crtc
)
2986 struct drm_device
*dev
= crtc
->dev
;
2987 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2988 u32 divsel
, phaseinc
, auxdiv
, phasedir
= 0;
2991 mutex_lock(&dev_priv
->dpio_lock
);
2993 /* It is necessary to ungate the pixclk gate prior to programming
2994 * the divisors, and gate it back when it is done.
2996 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_GATE
);
2998 /* Disable SSCCTL */
2999 intel_sbi_write(dev_priv
, SBI_SSCCTL6
,
3000 intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
) |
3004 /* 20MHz is a corner case which is out of range for the 7-bit divisor */
3005 if (crtc
->mode
.clock
== 20000) {
3010 /* The iCLK virtual clock root frequency is in MHz,
3011 * but the crtc->mode.clock in in KHz. To get the divisors,
3012 * it is necessary to divide one by another, so we
3013 * convert the virtual clock precision to KHz here for higher
3016 u32 iclk_virtual_root_freq
= 172800 * 1000;
3017 u32 iclk_pi_range
= 64;
3018 u32 desired_divisor
, msb_divisor_value
, pi_value
;
3020 desired_divisor
= (iclk_virtual_root_freq
/ crtc
->mode
.clock
);
3021 msb_divisor_value
= desired_divisor
/ iclk_pi_range
;
3022 pi_value
= desired_divisor
% iclk_pi_range
;
3025 divsel
= msb_divisor_value
- 2;
3026 phaseinc
= pi_value
;
3029 /* This should not happen with any sane values */
3030 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel
) &
3031 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
);
3032 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir
) &
3033 ~SBI_SSCDIVINTPHASE_INCVAL_MASK
);
3035 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
3042 /* Program SSCDIVINTPHASE6 */
3043 temp
= intel_sbi_read(dev_priv
, SBI_SSCDIVINTPHASE6
, SBI_ICLK
);
3044 temp
&= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
;
3045 temp
|= SBI_SSCDIVINTPHASE_DIVSEL(divsel
);
3046 temp
&= ~SBI_SSCDIVINTPHASE_INCVAL_MASK
;
3047 temp
|= SBI_SSCDIVINTPHASE_INCVAL(phaseinc
);
3048 temp
|= SBI_SSCDIVINTPHASE_DIR(phasedir
);
3049 temp
|= SBI_SSCDIVINTPHASE_PROPAGATE
;
3050 intel_sbi_write(dev_priv
, SBI_SSCDIVINTPHASE6
, temp
, SBI_ICLK
);
3052 /* Program SSCAUXDIV */
3053 temp
= intel_sbi_read(dev_priv
, SBI_SSCAUXDIV6
, SBI_ICLK
);
3054 temp
&= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
3055 temp
|= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv
);
3056 intel_sbi_write(dev_priv
, SBI_SSCAUXDIV6
, temp
, SBI_ICLK
);
3058 /* Enable modulator and associated divider */
3059 temp
= intel_sbi_read(dev_priv
, SBI_SSCCTL6
, SBI_ICLK
);
3060 temp
&= ~SBI_SSCCTL_DISABLE
;
3061 intel_sbi_write(dev_priv
, SBI_SSCCTL6
, temp
, SBI_ICLK
);
3063 /* Wait for initialization time */
3066 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_UNGATE
);
3068 mutex_unlock(&dev_priv
->dpio_lock
);
3072 * Enable PCH resources required for PCH ports:
3074 * - FDI training & RX/TX
3075 * - update transcoder timings
3076 * - DP transcoding bits
3079 static void ironlake_pch_enable(struct drm_crtc
*crtc
)
3081 struct drm_device
*dev
= crtc
->dev
;
3082 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3083 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3084 int pipe
= intel_crtc
->pipe
;
3087 assert_transcoder_disabled(dev_priv
, pipe
);
3089 /* Write the TU size bits before fdi link training, so that error
3090 * detection works. */
3091 I915_WRITE(FDI_RX_TUSIZE1(pipe
),
3092 I915_READ(PIPE_DATA_M1(pipe
)) & TU_SIZE_MASK
);
3094 /* For PCH output, training FDI link */
3095 dev_priv
->display
.fdi_link_train(crtc
);
3097 /* XXX: pch pll's can be enabled any time before we enable the PCH
3098 * transcoder, and we actually should do this to not upset any PCH
3099 * transcoder that already use the clock when we share it.
3101 * Note that enable_pch_pll tries to do the right thing, but get_pch_pll
3102 * unconditionally resets the pll - we need that to have the right LVDS
3103 * enable sequence. */
3104 ironlake_enable_pch_pll(intel_crtc
);
3106 if (HAS_PCH_CPT(dev
)) {
3109 temp
= I915_READ(PCH_DPLL_SEL
);
3113 temp
|= TRANSA_DPLL_ENABLE
;
3114 sel
= TRANSA_DPLLB_SEL
;
3117 temp
|= TRANSB_DPLL_ENABLE
;
3118 sel
= TRANSB_DPLLB_SEL
;
3121 temp
|= TRANSC_DPLL_ENABLE
;
3122 sel
= TRANSC_DPLLB_SEL
;
3125 if (intel_crtc
->pch_pll
->pll_reg
== _PCH_DPLL_B
)
3129 I915_WRITE(PCH_DPLL_SEL
, temp
);
3132 /* set transcoder timing, panel must allow it */
3133 assert_panel_unlocked(dev_priv
, pipe
);
3134 I915_WRITE(TRANS_HTOTAL(pipe
), I915_READ(HTOTAL(pipe
)));
3135 I915_WRITE(TRANS_HBLANK(pipe
), I915_READ(HBLANK(pipe
)));
3136 I915_WRITE(TRANS_HSYNC(pipe
), I915_READ(HSYNC(pipe
)));
3138 I915_WRITE(TRANS_VTOTAL(pipe
), I915_READ(VTOTAL(pipe
)));
3139 I915_WRITE(TRANS_VBLANK(pipe
), I915_READ(VBLANK(pipe
)));
3140 I915_WRITE(TRANS_VSYNC(pipe
), I915_READ(VSYNC(pipe
)));
3141 I915_WRITE(TRANS_VSYNCSHIFT(pipe
), I915_READ(VSYNCSHIFT(pipe
)));
3143 intel_fdi_normal_train(crtc
);
3145 /* For PCH DP, enable TRANS_DP_CTL */
3146 if (HAS_PCH_CPT(dev
) &&
3147 (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
) ||
3148 intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
))) {
3149 u32 bpc
= (I915_READ(PIPECONF(pipe
)) & PIPECONF_BPC_MASK
) >> 5;
3150 reg
= TRANS_DP_CTL(pipe
);
3151 temp
= I915_READ(reg
);
3152 temp
&= ~(TRANS_DP_PORT_SEL_MASK
|
3153 TRANS_DP_SYNC_MASK
|
3155 temp
|= (TRANS_DP_OUTPUT_ENABLE
|
3156 TRANS_DP_ENH_FRAMING
);
3157 temp
|= bpc
<< 9; /* same format but at 11:9 */
3159 if (crtc
->mode
.flags
& DRM_MODE_FLAG_PHSYNC
)
3160 temp
|= TRANS_DP_HSYNC_ACTIVE_HIGH
;
3161 if (crtc
->mode
.flags
& DRM_MODE_FLAG_PVSYNC
)
3162 temp
|= TRANS_DP_VSYNC_ACTIVE_HIGH
;
3164 switch (intel_trans_dp_port_sel(crtc
)) {
3166 temp
|= TRANS_DP_PORT_SEL_B
;
3169 temp
|= TRANS_DP_PORT_SEL_C
;
3172 temp
|= TRANS_DP_PORT_SEL_D
;
3178 I915_WRITE(reg
, temp
);
3181 ironlake_enable_pch_transcoder(dev_priv
, pipe
);
3184 static void lpt_pch_enable(struct drm_crtc
*crtc
)
3186 struct drm_device
*dev
= crtc
->dev
;
3187 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3188 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3189 enum transcoder cpu_transcoder
= intel_crtc
->cpu_transcoder
;
3191 assert_transcoder_disabled(dev_priv
, TRANSCODER_A
);
3193 lpt_program_iclkip(crtc
);
3195 /* Set transcoder timing. */
3196 I915_WRITE(_TRANS_HTOTAL_A
, I915_READ(HTOTAL(cpu_transcoder
)));
3197 I915_WRITE(_TRANS_HBLANK_A
, I915_READ(HBLANK(cpu_transcoder
)));
3198 I915_WRITE(_TRANS_HSYNC_A
, I915_READ(HSYNC(cpu_transcoder
)));
3200 I915_WRITE(_TRANS_VTOTAL_A
, I915_READ(VTOTAL(cpu_transcoder
)));
3201 I915_WRITE(_TRANS_VBLANK_A
, I915_READ(VBLANK(cpu_transcoder
)));
3202 I915_WRITE(_TRANS_VSYNC_A
, I915_READ(VSYNC(cpu_transcoder
)));
3203 I915_WRITE(_TRANS_VSYNCSHIFT_A
, I915_READ(VSYNCSHIFT(cpu_transcoder
)));
3205 lpt_enable_pch_transcoder(dev_priv
, cpu_transcoder
);
3208 static void intel_put_pch_pll(struct intel_crtc
*intel_crtc
)
3210 struct intel_pch_pll
*pll
= intel_crtc
->pch_pll
;
3215 if (pll
->refcount
== 0) {
3216 WARN(1, "bad PCH PLL refcount\n");
3221 intel_crtc
->pch_pll
= NULL
;
3224 static struct intel_pch_pll
*intel_get_pch_pll(struct intel_crtc
*intel_crtc
, u32 dpll
, u32 fp
)
3226 struct drm_i915_private
*dev_priv
= intel_crtc
->base
.dev
->dev_private
;
3227 struct intel_pch_pll
*pll
;
3230 pll
= intel_crtc
->pch_pll
;
3232 DRM_DEBUG_KMS("CRTC:%d reusing existing PCH PLL %x\n",
3233 intel_crtc
->base
.base
.id
, pll
->pll_reg
);
3237 if (HAS_PCH_IBX(dev_priv
->dev
)) {
3238 /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
3239 i
= intel_crtc
->pipe
;
3240 pll
= &dev_priv
->pch_plls
[i
];
3242 DRM_DEBUG_KMS("CRTC:%d using pre-allocated PCH PLL %x\n",
3243 intel_crtc
->base
.base
.id
, pll
->pll_reg
);
3248 for (i
= 0; i
< dev_priv
->num_pch_pll
; i
++) {
3249 pll
= &dev_priv
->pch_plls
[i
];
3251 /* Only want to check enabled timings first */
3252 if (pll
->refcount
== 0)
3255 if (dpll
== (I915_READ(pll
->pll_reg
) & 0x7fffffff) &&
3256 fp
== I915_READ(pll
->fp0_reg
)) {
3257 DRM_DEBUG_KMS("CRTC:%d sharing existing PCH PLL %x (refcount %d, ative %d)\n",
3258 intel_crtc
->base
.base
.id
,
3259 pll
->pll_reg
, pll
->refcount
, pll
->active
);
3265 /* Ok no matching timings, maybe there's a free one? */
3266 for (i
= 0; i
< dev_priv
->num_pch_pll
; i
++) {
3267 pll
= &dev_priv
->pch_plls
[i
];
3268 if (pll
->refcount
== 0) {
3269 DRM_DEBUG_KMS("CRTC:%d allocated PCH PLL %x\n",
3270 intel_crtc
->base
.base
.id
, pll
->pll_reg
);
3278 intel_crtc
->pch_pll
= pll
;
3280 DRM_DEBUG_DRIVER("using pll %d for pipe %d\n", i
, intel_crtc
->pipe
);
3281 prepare
: /* separate function? */
3282 DRM_DEBUG_DRIVER("switching PLL %x off\n", pll
->pll_reg
);
3284 /* Wait for the clocks to stabilize before rewriting the regs */
3285 I915_WRITE(pll
->pll_reg
, dpll
& ~DPLL_VCO_ENABLE
);
3286 POSTING_READ(pll
->pll_reg
);
3289 I915_WRITE(pll
->fp0_reg
, fp
);
3290 I915_WRITE(pll
->pll_reg
, dpll
& ~DPLL_VCO_ENABLE
);
3295 void intel_cpt_verify_modeset(struct drm_device
*dev
, int pipe
)
3297 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3298 int dslreg
= PIPEDSL(pipe
);
3301 temp
= I915_READ(dslreg
);
3303 if (wait_for(I915_READ(dslreg
) != temp
, 5)) {
3304 if (wait_for(I915_READ(dslreg
) != temp
, 5))
3305 DRM_ERROR("mode set failed: pipe %d stuck\n", pipe
);
3309 static void ironlake_crtc_enable(struct drm_crtc
*crtc
)
3311 struct drm_device
*dev
= crtc
->dev
;
3312 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3313 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3314 struct intel_encoder
*encoder
;
3315 int pipe
= intel_crtc
->pipe
;
3316 int plane
= intel_crtc
->plane
;
3319 WARN_ON(!crtc
->enabled
);
3321 if (intel_crtc
->active
)
3324 intel_crtc
->active
= true;
3325 intel_update_watermarks(dev
);
3327 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
3328 temp
= I915_READ(PCH_LVDS
);
3329 if ((temp
& LVDS_PORT_EN
) == 0)
3330 I915_WRITE(PCH_LVDS
, temp
| LVDS_PORT_EN
);
3334 if (intel_crtc
->config
.has_pch_encoder
) {
3335 /* Note: FDI PLL enabling _must_ be done before we enable the
3336 * cpu pipes, hence this is separate from all the other fdi/pch
3338 ironlake_fdi_pll_enable(intel_crtc
);
3340 assert_fdi_tx_disabled(dev_priv
, pipe
);
3341 assert_fdi_rx_disabled(dev_priv
, pipe
);
3344 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3345 if (encoder
->pre_enable
)
3346 encoder
->pre_enable(encoder
);
3348 /* Enable panel fitting for LVDS */
3349 if (dev_priv
->pch_pf_size
&&
3350 (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) ||
3351 intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
))) {
3352 /* Force use of hard-coded filter coefficients
3353 * as some pre-programmed values are broken,
3356 if (IS_IVYBRIDGE(dev
))
3357 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
|
3358 PF_PIPE_SEL_IVB(pipe
));
3360 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
);
3361 I915_WRITE(PF_WIN_POS(pipe
), dev_priv
->pch_pf_pos
);
3362 I915_WRITE(PF_WIN_SZ(pipe
), dev_priv
->pch_pf_size
);
3366 * On ILK+ LUT must be loaded before the pipe is running but with
3369 intel_crtc_load_lut(crtc
);
3371 intel_enable_pipe(dev_priv
, pipe
,
3372 intel_crtc
->config
.has_pch_encoder
);
3373 intel_enable_plane(dev_priv
, plane
, pipe
);
3375 if (intel_crtc
->config
.has_pch_encoder
)
3376 ironlake_pch_enable(crtc
);
3378 mutex_lock(&dev
->struct_mutex
);
3379 intel_update_fbc(dev
);
3380 mutex_unlock(&dev
->struct_mutex
);
3382 intel_crtc_update_cursor(crtc
, true);
3384 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3385 encoder
->enable(encoder
);
3387 if (HAS_PCH_CPT(dev
))
3388 intel_cpt_verify_modeset(dev
, intel_crtc
->pipe
);
3391 * There seems to be a race in PCH platform hw (at least on some
3392 * outputs) where an enabled pipe still completes any pageflip right
3393 * away (as if the pipe is off) instead of waiting for vblank. As soon
3394 * as the first vblank happend, everything works as expected. Hence just
3395 * wait for one vblank before returning to avoid strange things
3398 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
3401 static void haswell_crtc_enable(struct drm_crtc
*crtc
)
3403 struct drm_device
*dev
= crtc
->dev
;
3404 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3405 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3406 struct intel_encoder
*encoder
;
3407 int pipe
= intel_crtc
->pipe
;
3408 int plane
= intel_crtc
->plane
;
3410 WARN_ON(!crtc
->enabled
);
3412 if (intel_crtc
->active
)
3415 intel_crtc
->active
= true;
3416 intel_update_watermarks(dev
);
3418 if (intel_crtc
->config
.has_pch_encoder
)
3419 dev_priv
->display
.fdi_link_train(crtc
);
3421 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3422 if (encoder
->pre_enable
)
3423 encoder
->pre_enable(encoder
);
3425 intel_ddi_enable_pipe_clock(intel_crtc
);
3427 /* Enable panel fitting for eDP */
3428 if (dev_priv
->pch_pf_size
&&
3429 intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
)) {
3430 /* Force use of hard-coded filter coefficients
3431 * as some pre-programmed values are broken,
3434 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
|
3435 PF_PIPE_SEL_IVB(pipe
));
3436 I915_WRITE(PF_WIN_POS(pipe
), dev_priv
->pch_pf_pos
);
3437 I915_WRITE(PF_WIN_SZ(pipe
), dev_priv
->pch_pf_size
);
3441 * On ILK+ LUT must be loaded before the pipe is running but with
3444 intel_crtc_load_lut(crtc
);
3446 intel_ddi_set_pipe_settings(crtc
);
3447 intel_ddi_enable_transcoder_func(crtc
);
3449 intel_enable_pipe(dev_priv
, pipe
,
3450 intel_crtc
->config
.has_pch_encoder
);
3451 intel_enable_plane(dev_priv
, plane
, pipe
);
3453 if (intel_crtc
->config
.has_pch_encoder
)
3454 lpt_pch_enable(crtc
);
3456 mutex_lock(&dev
->struct_mutex
);
3457 intel_update_fbc(dev
);
3458 mutex_unlock(&dev
->struct_mutex
);
3460 intel_crtc_update_cursor(crtc
, true);
3462 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3463 encoder
->enable(encoder
);
3466 * There seems to be a race in PCH platform hw (at least on some
3467 * outputs) where an enabled pipe still completes any pageflip right
3468 * away (as if the pipe is off) instead of waiting for vblank. As soon
3469 * as the first vblank happend, everything works as expected. Hence just
3470 * wait for one vblank before returning to avoid strange things
3473 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
3476 static void ironlake_crtc_disable(struct drm_crtc
*crtc
)
3478 struct drm_device
*dev
= crtc
->dev
;
3479 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3480 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3481 struct intel_encoder
*encoder
;
3482 int pipe
= intel_crtc
->pipe
;
3483 int plane
= intel_crtc
->plane
;
3487 if (!intel_crtc
->active
)
3490 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3491 encoder
->disable(encoder
);
3493 intel_crtc_wait_for_pending_flips(crtc
);
3494 drm_vblank_off(dev
, pipe
);
3495 intel_crtc_update_cursor(crtc
, false);
3497 intel_disable_plane(dev_priv
, plane
, pipe
);
3499 if (dev_priv
->cfb_plane
== plane
)
3500 intel_disable_fbc(dev
);
3502 intel_disable_pipe(dev_priv
, pipe
);
3505 I915_WRITE(PF_CTL(pipe
), 0);
3506 I915_WRITE(PF_WIN_SZ(pipe
), 0);
3508 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3509 if (encoder
->post_disable
)
3510 encoder
->post_disable(encoder
);
3512 ironlake_fdi_disable(crtc
);
3514 ironlake_disable_pch_transcoder(dev_priv
, pipe
);
3516 if (HAS_PCH_CPT(dev
)) {
3517 /* disable TRANS_DP_CTL */
3518 reg
= TRANS_DP_CTL(pipe
);
3519 temp
= I915_READ(reg
);
3520 temp
&= ~(TRANS_DP_OUTPUT_ENABLE
| TRANS_DP_PORT_SEL_MASK
);
3521 temp
|= TRANS_DP_PORT_SEL_NONE
;
3522 I915_WRITE(reg
, temp
);
3524 /* disable DPLL_SEL */
3525 temp
= I915_READ(PCH_DPLL_SEL
);
3528 temp
&= ~(TRANSA_DPLL_ENABLE
| TRANSA_DPLLB_SEL
);
3531 temp
&= ~(TRANSB_DPLL_ENABLE
| TRANSB_DPLLB_SEL
);
3534 /* C shares PLL A or B */
3535 temp
&= ~(TRANSC_DPLL_ENABLE
| TRANSC_DPLLB_SEL
);
3540 I915_WRITE(PCH_DPLL_SEL
, temp
);
3543 /* disable PCH DPLL */
3544 intel_disable_pch_pll(intel_crtc
);
3546 ironlake_fdi_pll_disable(intel_crtc
);
3548 intel_crtc
->active
= false;
3549 intel_update_watermarks(dev
);
3551 mutex_lock(&dev
->struct_mutex
);
3552 intel_update_fbc(dev
);
3553 mutex_unlock(&dev
->struct_mutex
);
3556 static void haswell_crtc_disable(struct drm_crtc
*crtc
)
3558 struct drm_device
*dev
= crtc
->dev
;
3559 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3560 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3561 struct intel_encoder
*encoder
;
3562 int pipe
= intel_crtc
->pipe
;
3563 int plane
= intel_crtc
->plane
;
3564 enum transcoder cpu_transcoder
= intel_crtc
->cpu_transcoder
;
3567 if (!intel_crtc
->active
)
3570 is_pch_port
= haswell_crtc_driving_pch(crtc
);
3572 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3573 encoder
->disable(encoder
);
3575 intel_crtc_wait_for_pending_flips(crtc
);
3576 drm_vblank_off(dev
, pipe
);
3577 intel_crtc_update_cursor(crtc
, false);
3579 intel_disable_plane(dev_priv
, plane
, pipe
);
3581 if (dev_priv
->cfb_plane
== plane
)
3582 intel_disable_fbc(dev
);
3584 intel_disable_pipe(dev_priv
, pipe
);
3586 intel_ddi_disable_transcoder_func(dev_priv
, cpu_transcoder
);
3589 I915_WRITE(PF_CTL(pipe
), 0);
3590 I915_WRITE(PF_WIN_SZ(pipe
), 0);
3592 intel_ddi_disable_pipe_clock(intel_crtc
);
3594 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3595 if (encoder
->post_disable
)
3596 encoder
->post_disable(encoder
);
3599 lpt_disable_pch_transcoder(dev_priv
);
3600 intel_ddi_fdi_disable(crtc
);
3603 intel_crtc
->active
= false;
3604 intel_update_watermarks(dev
);
3606 mutex_lock(&dev
->struct_mutex
);
3607 intel_update_fbc(dev
);
3608 mutex_unlock(&dev
->struct_mutex
);
3611 static void ironlake_crtc_off(struct drm_crtc
*crtc
)
3613 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3614 intel_put_pch_pll(intel_crtc
);
3617 static void haswell_crtc_off(struct drm_crtc
*crtc
)
3619 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3621 /* Stop saying we're using TRANSCODER_EDP because some other CRTC might
3622 * start using it. */
3623 intel_crtc
->cpu_transcoder
= (enum transcoder
) intel_crtc
->pipe
;
3625 intel_ddi_put_crtc_pll(crtc
);
3628 static void intel_crtc_dpms_overlay(struct intel_crtc
*intel_crtc
, bool enable
)
3630 if (!enable
&& intel_crtc
->overlay
) {
3631 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3632 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3634 mutex_lock(&dev
->struct_mutex
);
3635 dev_priv
->mm
.interruptible
= false;
3636 (void) intel_overlay_switch_off(intel_crtc
->overlay
);
3637 dev_priv
->mm
.interruptible
= true;
3638 mutex_unlock(&dev
->struct_mutex
);
3641 /* Let userspace switch the overlay on again. In most cases userspace
3642 * has to recompute where to put it anyway.
3647 * i9xx_fixup_plane - ugly workaround for G45 to fire up the hardware
3648 * cursor plane briefly if not already running after enabling the display
3650 * This workaround avoids occasional blank screens when self refresh is
3654 g4x_fixup_plane(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
3656 u32 cntl
= I915_READ(CURCNTR(pipe
));
3658 if ((cntl
& CURSOR_MODE
) == 0) {
3659 u32 fw_bcl_self
= I915_READ(FW_BLC_SELF
);
3661 I915_WRITE(FW_BLC_SELF
, fw_bcl_self
& ~FW_BLC_SELF_EN
);
3662 I915_WRITE(CURCNTR(pipe
), CURSOR_MODE_64_ARGB_AX
);
3663 intel_wait_for_vblank(dev_priv
->dev
, pipe
);
3664 I915_WRITE(CURCNTR(pipe
), cntl
);
3665 I915_WRITE(CURBASE(pipe
), I915_READ(CURBASE(pipe
)));
3666 I915_WRITE(FW_BLC_SELF
, fw_bcl_self
);
3670 static void i9xx_crtc_enable(struct drm_crtc
*crtc
)
3672 struct drm_device
*dev
= crtc
->dev
;
3673 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3674 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3675 struct intel_encoder
*encoder
;
3676 int pipe
= intel_crtc
->pipe
;
3677 int plane
= intel_crtc
->plane
;
3679 WARN_ON(!crtc
->enabled
);
3681 if (intel_crtc
->active
)
3684 intel_crtc
->active
= true;
3685 intel_update_watermarks(dev
);
3687 intel_enable_pll(dev_priv
, pipe
);
3689 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3690 if (encoder
->pre_enable
)
3691 encoder
->pre_enable(encoder
);
3693 intel_enable_pipe(dev_priv
, pipe
, false);
3694 intel_enable_plane(dev_priv
, plane
, pipe
);
3696 g4x_fixup_plane(dev_priv
, pipe
);
3698 intel_crtc_load_lut(crtc
);
3699 intel_update_fbc(dev
);
3701 /* Give the overlay scaler a chance to enable if it's on this pipe */
3702 intel_crtc_dpms_overlay(intel_crtc
, true);
3703 intel_crtc_update_cursor(crtc
, true);
3705 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3706 encoder
->enable(encoder
);
3709 static void i9xx_crtc_disable(struct drm_crtc
*crtc
)
3711 struct drm_device
*dev
= crtc
->dev
;
3712 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3713 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3714 struct intel_encoder
*encoder
;
3715 int pipe
= intel_crtc
->pipe
;
3716 int plane
= intel_crtc
->plane
;
3720 if (!intel_crtc
->active
)
3723 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3724 encoder
->disable(encoder
);
3726 /* Give the overlay scaler a chance to disable if it's on this pipe */
3727 intel_crtc_wait_for_pending_flips(crtc
);
3728 drm_vblank_off(dev
, pipe
);
3729 intel_crtc_dpms_overlay(intel_crtc
, false);
3730 intel_crtc_update_cursor(crtc
, false);
3732 if (dev_priv
->cfb_plane
== plane
)
3733 intel_disable_fbc(dev
);
3735 intel_disable_plane(dev_priv
, plane
, pipe
);
3736 intel_disable_pipe(dev_priv
, pipe
);
3738 /* Disable pannel fitter if it is on this pipe. */
3739 pctl
= I915_READ(PFIT_CONTROL
);
3740 if ((pctl
& PFIT_ENABLE
) &&
3741 ((pctl
& PFIT_PIPE_MASK
) >> PFIT_PIPE_SHIFT
) == pipe
)
3742 I915_WRITE(PFIT_CONTROL
, 0);
3744 intel_disable_pll(dev_priv
, pipe
);
3746 intel_crtc
->active
= false;
3747 intel_update_fbc(dev
);
3748 intel_update_watermarks(dev
);
3751 static void i9xx_crtc_off(struct drm_crtc
*crtc
)
3755 static void intel_crtc_update_sarea(struct drm_crtc
*crtc
,
3758 struct drm_device
*dev
= crtc
->dev
;
3759 struct drm_i915_master_private
*master_priv
;
3760 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3761 int pipe
= intel_crtc
->pipe
;
3763 if (!dev
->primary
->master
)
3766 master_priv
= dev
->primary
->master
->driver_priv
;
3767 if (!master_priv
->sarea_priv
)
3772 master_priv
->sarea_priv
->pipeA_w
= enabled
? crtc
->mode
.hdisplay
: 0;
3773 master_priv
->sarea_priv
->pipeA_h
= enabled
? crtc
->mode
.vdisplay
: 0;
3776 master_priv
->sarea_priv
->pipeB_w
= enabled
? crtc
->mode
.hdisplay
: 0;
3777 master_priv
->sarea_priv
->pipeB_h
= enabled
? crtc
->mode
.vdisplay
: 0;
3780 DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe
));
3786 * Sets the power management mode of the pipe and plane.
3788 void intel_crtc_update_dpms(struct drm_crtc
*crtc
)
3790 struct drm_device
*dev
= crtc
->dev
;
3791 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3792 struct intel_encoder
*intel_encoder
;
3793 bool enable
= false;
3795 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
)
3796 enable
|= intel_encoder
->connectors_active
;
3799 dev_priv
->display
.crtc_enable(crtc
);
3801 dev_priv
->display
.crtc_disable(crtc
);
3803 intel_crtc_update_sarea(crtc
, enable
);
3806 static void intel_crtc_disable(struct drm_crtc
*crtc
)
3808 struct drm_device
*dev
= crtc
->dev
;
3809 struct drm_connector
*connector
;
3810 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3811 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3813 /* crtc should still be enabled when we disable it. */
3814 WARN_ON(!crtc
->enabled
);
3816 intel_crtc
->eld_vld
= false;
3817 dev_priv
->display
.crtc_disable(crtc
);
3818 intel_crtc_update_sarea(crtc
, false);
3819 dev_priv
->display
.off(crtc
);
3821 assert_plane_disabled(dev
->dev_private
, to_intel_crtc(crtc
)->plane
);
3822 assert_pipe_disabled(dev
->dev_private
, to_intel_crtc(crtc
)->pipe
);
3825 mutex_lock(&dev
->struct_mutex
);
3826 intel_unpin_fb_obj(to_intel_framebuffer(crtc
->fb
)->obj
);
3827 mutex_unlock(&dev
->struct_mutex
);
3831 /* Update computed state. */
3832 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
3833 if (!connector
->encoder
|| !connector
->encoder
->crtc
)
3836 if (connector
->encoder
->crtc
!= crtc
)
3839 connector
->dpms
= DRM_MODE_DPMS_OFF
;
3840 to_intel_encoder(connector
->encoder
)->connectors_active
= false;
3844 void intel_modeset_disable(struct drm_device
*dev
)
3846 struct drm_crtc
*crtc
;
3848 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
3850 intel_crtc_disable(crtc
);
3854 void intel_encoder_destroy(struct drm_encoder
*encoder
)
3856 struct intel_encoder
*intel_encoder
= to_intel_encoder(encoder
);
3858 drm_encoder_cleanup(encoder
);
3859 kfree(intel_encoder
);
3862 /* Simple dpms helper for encodres with just one connector, no cloning and only
3863 * one kind of off state. It clamps all !ON modes to fully OFF and changes the
3864 * state of the entire output pipe. */
3865 void intel_encoder_dpms(struct intel_encoder
*encoder
, int mode
)
3867 if (mode
== DRM_MODE_DPMS_ON
) {
3868 encoder
->connectors_active
= true;
3870 intel_crtc_update_dpms(encoder
->base
.crtc
);
3872 encoder
->connectors_active
= false;
3874 intel_crtc_update_dpms(encoder
->base
.crtc
);
3878 /* Cross check the actual hw state with our own modeset state tracking (and it's
3879 * internal consistency). */
3880 static void intel_connector_check_state(struct intel_connector
*connector
)
3882 if (connector
->get_hw_state(connector
)) {
3883 struct intel_encoder
*encoder
= connector
->encoder
;
3884 struct drm_crtc
*crtc
;
3885 bool encoder_enabled
;
3888 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
3889 connector
->base
.base
.id
,
3890 drm_get_connector_name(&connector
->base
));
3892 WARN(connector
->base
.dpms
== DRM_MODE_DPMS_OFF
,
3893 "wrong connector dpms state\n");
3894 WARN(connector
->base
.encoder
!= &encoder
->base
,
3895 "active connector not linked to encoder\n");
3896 WARN(!encoder
->connectors_active
,
3897 "encoder->connectors_active not set\n");
3899 encoder_enabled
= encoder
->get_hw_state(encoder
, &pipe
);
3900 WARN(!encoder_enabled
, "encoder not enabled\n");
3901 if (WARN_ON(!encoder
->base
.crtc
))
3904 crtc
= encoder
->base
.crtc
;
3906 WARN(!crtc
->enabled
, "crtc not enabled\n");
3907 WARN(!to_intel_crtc(crtc
)->active
, "crtc not active\n");
3908 WARN(pipe
!= to_intel_crtc(crtc
)->pipe
,
3909 "encoder active on the wrong pipe\n");
3913 /* Even simpler default implementation, if there's really no special case to
3915 void intel_connector_dpms(struct drm_connector
*connector
, int mode
)
3917 struct intel_encoder
*encoder
= intel_attached_encoder(connector
);
3919 /* All the simple cases only support two dpms states. */
3920 if (mode
!= DRM_MODE_DPMS_ON
)
3921 mode
= DRM_MODE_DPMS_OFF
;
3923 if (mode
== connector
->dpms
)
3926 connector
->dpms
= mode
;
3928 /* Only need to change hw state when actually enabled */
3929 if (encoder
->base
.crtc
)
3930 intel_encoder_dpms(encoder
, mode
);
3932 WARN_ON(encoder
->connectors_active
!= false);
3934 intel_modeset_check_state(connector
->dev
);
3937 /* Simple connector->get_hw_state implementation for encoders that support only
3938 * one connector and no cloning and hence the encoder state determines the state
3939 * of the connector. */
3940 bool intel_connector_get_hw_state(struct intel_connector
*connector
)
3943 struct intel_encoder
*encoder
= connector
->encoder
;
3945 return encoder
->get_hw_state(encoder
, &pipe
);
3948 static bool intel_crtc_compute_config(struct drm_crtc
*crtc
,
3949 struct intel_crtc_config
*pipe_config
)
3951 struct drm_device
*dev
= crtc
->dev
;
3952 struct drm_display_mode
*adjusted_mode
= &pipe_config
->adjusted_mode
;
3954 if (HAS_PCH_SPLIT(dev
)) {
3955 /* FDI link clock is fixed at 2.7G */
3956 if (pipe_config
->requested_mode
.clock
* 3
3957 > IRONLAKE_FDI_FREQ
* 4)
3961 /* All interlaced capable intel hw wants timings in frames. Note though
3962 * that intel_lvds_mode_fixup does some funny tricks with the crtc
3963 * timings, so we need to be careful not to clobber these.*/
3964 if (!pipe_config
->timings_set
)
3965 drm_mode_set_crtcinfo(adjusted_mode
, 0);
3967 /* WaPruneModeWithIncorrectHsyncOffset: Cantiga+ cannot handle modes
3968 * with a hsync front porch of 0.
3970 if ((INTEL_INFO(dev
)->gen
> 4 || IS_G4X(dev
)) &&
3971 adjusted_mode
->hsync_start
== adjusted_mode
->hdisplay
)
3974 if ((IS_G4X(dev
) || IS_VALLEYVIEW(dev
)) && pipe_config
->pipe_bpp
> 10) {
3975 pipe_config
->pipe_bpp
= 10*3; /* 12bpc is gen5+ */
3976 } else if (INTEL_INFO(dev
)->gen
<= 4 && pipe_config
->pipe_bpp
> 8) {
3977 /* only a 8bpc pipe, with 6bpc dither through the panel fitter
3979 pipe_config
->pipe_bpp
= 8*3;
3985 static int valleyview_get_display_clock_speed(struct drm_device
*dev
)
3987 return 400000; /* FIXME */
3990 static int i945_get_display_clock_speed(struct drm_device
*dev
)
3995 static int i915_get_display_clock_speed(struct drm_device
*dev
)
4000 static int i9xx_misc_get_display_clock_speed(struct drm_device
*dev
)
4005 static int i915gm_get_display_clock_speed(struct drm_device
*dev
)
4009 pci_read_config_word(dev
->pdev
, GCFGC
, &gcfgc
);
4011 if (gcfgc
& GC_LOW_FREQUENCY_ENABLE
)
4014 switch (gcfgc
& GC_DISPLAY_CLOCK_MASK
) {
4015 case GC_DISPLAY_CLOCK_333_MHZ
:
4018 case GC_DISPLAY_CLOCK_190_200_MHZ
:
4024 static int i865_get_display_clock_speed(struct drm_device
*dev
)
4029 static int i855_get_display_clock_speed(struct drm_device
*dev
)
4032 /* Assume that the hardware is in the high speed state. This
4033 * should be the default.
4035 switch (hpllcc
& GC_CLOCK_CONTROL_MASK
) {
4036 case GC_CLOCK_133_200
:
4037 case GC_CLOCK_100_200
:
4039 case GC_CLOCK_166_250
:
4041 case GC_CLOCK_100_133
:
4045 /* Shouldn't happen */
4049 static int i830_get_display_clock_speed(struct drm_device
*dev
)
4055 intel_reduce_ratio(uint32_t *num
, uint32_t *den
)
4057 while (*num
> 0xffffff || *den
> 0xffffff) {
4064 intel_link_compute_m_n(int bits_per_pixel
, int nlanes
,
4065 int pixel_clock
, int link_clock
,
4066 struct intel_link_m_n
*m_n
)
4069 m_n
->gmch_m
= bits_per_pixel
* pixel_clock
;
4070 m_n
->gmch_n
= link_clock
* nlanes
* 8;
4071 intel_reduce_ratio(&m_n
->gmch_m
, &m_n
->gmch_n
);
4072 m_n
->link_m
= pixel_clock
;
4073 m_n
->link_n
= link_clock
;
4074 intel_reduce_ratio(&m_n
->link_m
, &m_n
->link_n
);
4077 static inline bool intel_panel_use_ssc(struct drm_i915_private
*dev_priv
)
4079 if (i915_panel_use_ssc
>= 0)
4080 return i915_panel_use_ssc
!= 0;
4081 return dev_priv
->lvds_use_ssc
4082 && !(dev_priv
->quirks
& QUIRK_LVDS_SSC_DISABLE
);
4085 static int vlv_get_refclk(struct drm_crtc
*crtc
)
4087 struct drm_device
*dev
= crtc
->dev
;
4088 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4089 int refclk
= 27000; /* for DP & HDMI */
4091 return 100000; /* only one validated so far */
4093 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_ANALOG
)) {
4095 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
4096 if (intel_panel_use_ssc(dev_priv
))
4100 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
)) {
4107 static int i9xx_get_refclk(struct drm_crtc
*crtc
, int num_connectors
)
4109 struct drm_device
*dev
= crtc
->dev
;
4110 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4113 if (IS_VALLEYVIEW(dev
)) {
4114 refclk
= vlv_get_refclk(crtc
);
4115 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) &&
4116 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2) {
4117 refclk
= dev_priv
->lvds_ssc_freq
* 1000;
4118 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
4120 } else if (!IS_GEN2(dev
)) {
4129 static void i9xx_adjust_sdvo_tv_clock(struct drm_display_mode
*adjusted_mode
,
4130 intel_clock_t
*clock
)
4132 /* SDVO TV has fixed PLL values depend on its clock range,
4133 this mirrors vbios setting. */
4134 if (adjusted_mode
->clock
>= 100000
4135 && adjusted_mode
->clock
< 140500) {
4141 } else if (adjusted_mode
->clock
>= 140500
4142 && adjusted_mode
->clock
<= 200000) {
4151 static void i9xx_update_pll_dividers(struct drm_crtc
*crtc
,
4152 intel_clock_t
*clock
,
4153 intel_clock_t
*reduced_clock
)
4155 struct drm_device
*dev
= crtc
->dev
;
4156 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4157 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4158 int pipe
= intel_crtc
->pipe
;
4161 if (IS_PINEVIEW(dev
)) {
4162 fp
= (1 << clock
->n
) << 16 | clock
->m1
<< 8 | clock
->m2
;
4164 fp2
= (1 << reduced_clock
->n
) << 16 |
4165 reduced_clock
->m1
<< 8 | reduced_clock
->m2
;
4167 fp
= clock
->n
<< 16 | clock
->m1
<< 8 | clock
->m2
;
4169 fp2
= reduced_clock
->n
<< 16 | reduced_clock
->m1
<< 8 |
4173 I915_WRITE(FP0(pipe
), fp
);
4175 intel_crtc
->lowfreq_avail
= false;
4176 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) &&
4177 reduced_clock
&& i915_powersave
) {
4178 I915_WRITE(FP1(pipe
), fp2
);
4179 intel_crtc
->lowfreq_avail
= true;
4181 I915_WRITE(FP1(pipe
), fp
);
4185 static void vlv_update_pll(struct drm_crtc
*crtc
,
4186 intel_clock_t
*clock
, intel_clock_t
*reduced_clock
,
4189 struct drm_device
*dev
= crtc
->dev
;
4190 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4191 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4192 struct drm_display_mode
*adjusted_mode
=
4193 &intel_crtc
->config
.adjusted_mode
;
4194 struct drm_display_mode
*mode
= &intel_crtc
->config
.requested_mode
;
4195 int pipe
= intel_crtc
->pipe
;
4196 u32 dpll
, mdiv
, pdiv
;
4197 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
;
4201 mutex_lock(&dev_priv
->dpio_lock
);
4203 is_sdvo
= intel_pipe_has_type(crtc
, INTEL_OUTPUT_SDVO
) ||
4204 intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
);
4206 dpll
= DPLL_VGA_MODE_DIS
;
4207 dpll
|= DPLL_EXT_BUFFER_ENABLE_VLV
;
4208 dpll
|= DPLL_REFA_CLK_ENABLE_VLV
;
4209 dpll
|= DPLL_INTEGRATED_CLOCK_VLV
;
4211 I915_WRITE(DPLL(pipe
), dpll
);
4212 POSTING_READ(DPLL(pipe
));
4221 * In Valleyview PLL and program lane counter registers are exposed
4222 * through DPIO interface
4224 mdiv
= ((bestm1
<< DPIO_M1DIV_SHIFT
) | (bestm2
& DPIO_M2DIV_MASK
));
4225 mdiv
|= ((bestp1
<< DPIO_P1_SHIFT
) | (bestp2
<< DPIO_P2_SHIFT
));
4226 mdiv
|= ((bestn
<< DPIO_N_SHIFT
));
4227 mdiv
|= (1 << DPIO_POST_DIV_SHIFT
);
4228 mdiv
|= (1 << DPIO_K_SHIFT
);
4229 mdiv
|= DPIO_ENABLE_CALIBRATION
;
4230 intel_dpio_write(dev_priv
, DPIO_DIV(pipe
), mdiv
);
4232 intel_dpio_write(dev_priv
, DPIO_CORE_CLK(pipe
), 0x01000000);
4234 pdiv
= (1 << DPIO_REFSEL_OVERRIDE
) | (5 << DPIO_PLL_MODESEL_SHIFT
) |
4235 (3 << DPIO_BIAS_CURRENT_CTL_SHIFT
) | (1<<20) |
4236 (7 << DPIO_PLL_REFCLK_SEL_SHIFT
) | (8 << DPIO_DRIVER_CTL_SHIFT
) |
4237 (5 << DPIO_CLK_BIAS_CTL_SHIFT
);
4238 intel_dpio_write(dev_priv
, DPIO_REFSFR(pipe
), pdiv
);
4240 intel_dpio_write(dev_priv
, DPIO_LFP_COEFF(pipe
), 0x005f003b);
4242 dpll
|= DPLL_VCO_ENABLE
;
4243 I915_WRITE(DPLL(pipe
), dpll
);
4244 POSTING_READ(DPLL(pipe
));
4245 if (wait_for(((I915_READ(DPLL(pipe
)) & DPLL_LOCK_VLV
) == DPLL_LOCK_VLV
), 1))
4246 DRM_ERROR("DPLL %d failed to lock\n", pipe
);
4248 intel_dpio_write(dev_priv
, DPIO_FASTCLK_DISABLE
, 0x620);
4250 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
))
4251 intel_dp_set_m_n(crtc
, mode
, adjusted_mode
);
4253 I915_WRITE(DPLL(pipe
), dpll
);
4255 /* Wait for the clocks to stabilize. */
4256 POSTING_READ(DPLL(pipe
));
4262 if (intel_crtc
->config
.pixel_multiplier
> 1) {
4263 temp
= (intel_crtc
->config
.pixel_multiplier
- 1)
4264 << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
4267 I915_WRITE(DPLL_MD(pipe
), temp
);
4268 POSTING_READ(DPLL_MD(pipe
));
4270 /* Now program lane control registers */
4271 if(intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
)
4272 || intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
))
4277 intel_dpio_write(dev_priv
, DPIO_DATA_CHANNEL1
, temp
);
4279 if(intel_pipe_has_type(crtc
,INTEL_OUTPUT_EDP
))
4284 intel_dpio_write(dev_priv
, DPIO_DATA_CHANNEL2
, temp
);
4287 mutex_unlock(&dev_priv
->dpio_lock
);
4290 static void i9xx_update_pll(struct drm_crtc
*crtc
,
4291 intel_clock_t
*clock
, intel_clock_t
*reduced_clock
,
4294 struct drm_device
*dev
= crtc
->dev
;
4295 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4296 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4297 struct drm_display_mode
*adjusted_mode
=
4298 &intel_crtc
->config
.adjusted_mode
;
4299 struct drm_display_mode
*mode
= &intel_crtc
->config
.requested_mode
;
4300 struct intel_encoder
*encoder
;
4301 int pipe
= intel_crtc
->pipe
;
4305 i9xx_update_pll_dividers(crtc
, clock
, reduced_clock
);
4307 is_sdvo
= intel_pipe_has_type(crtc
, INTEL_OUTPUT_SDVO
) ||
4308 intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
);
4310 dpll
= DPLL_VGA_MODE_DIS
;
4312 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
4313 dpll
|= DPLLB_MODE_LVDS
;
4315 dpll
|= DPLLB_MODE_DAC_SERIAL
;
4318 if ((intel_crtc
->config
.pixel_multiplier
> 1) &&
4319 (IS_I945G(dev
) || IS_I945GM(dev
) || IS_G33(dev
))) {
4320 dpll
|= (intel_crtc
->config
.pixel_multiplier
- 1)
4321 << SDVO_MULTIPLIER_SHIFT_HIRES
;
4323 dpll
|= DPLL_DVO_HIGH_SPEED
;
4325 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
))
4326 dpll
|= DPLL_DVO_HIGH_SPEED
;
4328 /* compute bitmask from p1 value */
4329 if (IS_PINEVIEW(dev
))
4330 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
;
4332 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
4333 if (IS_G4X(dev
) && reduced_clock
)
4334 dpll
|= (1 << (reduced_clock
->p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
4336 switch (clock
->p2
) {
4338 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
4341 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
4344 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
4347 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
4350 if (INTEL_INFO(dev
)->gen
>= 4)
4351 dpll
|= (6 << PLL_LOAD_PULSE_PHASE_SHIFT
);
4353 if (is_sdvo
&& intel_pipe_has_type(crtc
, INTEL_OUTPUT_TVOUT
))
4354 dpll
|= PLL_REF_INPUT_TVCLKINBC
;
4355 else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_TVOUT
))
4356 /* XXX: just matching BIOS for now */
4357 /* dpll |= PLL_REF_INPUT_TVCLKINBC; */
4359 else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) &&
4360 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
4361 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
4363 dpll
|= PLL_REF_INPUT_DREFCLK
;
4365 dpll
|= DPLL_VCO_ENABLE
;
4366 I915_WRITE(DPLL(pipe
), dpll
& ~DPLL_VCO_ENABLE
);
4367 POSTING_READ(DPLL(pipe
));
4370 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4371 if (encoder
->pre_pll_enable
)
4372 encoder
->pre_pll_enable(encoder
);
4374 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
))
4375 intel_dp_set_m_n(crtc
, mode
, adjusted_mode
);
4377 I915_WRITE(DPLL(pipe
), dpll
);
4379 /* Wait for the clocks to stabilize. */
4380 POSTING_READ(DPLL(pipe
));
4383 if (INTEL_INFO(dev
)->gen
>= 4) {
4387 if (intel_crtc
->config
.pixel_multiplier
> 1) {
4388 temp
= (intel_crtc
->config
.pixel_multiplier
- 1)
4389 << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
4392 I915_WRITE(DPLL_MD(pipe
), temp
);
4394 /* The pixel multiplier can only be updated once the
4395 * DPLL is enabled and the clocks are stable.
4397 * So write it again.
4399 I915_WRITE(DPLL(pipe
), dpll
);
4403 static void i8xx_update_pll(struct drm_crtc
*crtc
,
4404 struct drm_display_mode
*adjusted_mode
,
4405 intel_clock_t
*clock
, intel_clock_t
*reduced_clock
,
4408 struct drm_device
*dev
= crtc
->dev
;
4409 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4410 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4411 struct intel_encoder
*encoder
;
4412 int pipe
= intel_crtc
->pipe
;
4415 i9xx_update_pll_dividers(crtc
, clock
, reduced_clock
);
4417 dpll
= DPLL_VGA_MODE_DIS
;
4419 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
4420 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
4423 dpll
|= PLL_P1_DIVIDE_BY_TWO
;
4425 dpll
|= (clock
->p1
- 2) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
4427 dpll
|= PLL_P2_DIVIDE_BY_4
;
4430 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) &&
4431 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
4432 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
4434 dpll
|= PLL_REF_INPUT_DREFCLK
;
4436 dpll
|= DPLL_VCO_ENABLE
;
4437 I915_WRITE(DPLL(pipe
), dpll
& ~DPLL_VCO_ENABLE
);
4438 POSTING_READ(DPLL(pipe
));
4441 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
4442 if (encoder
->pre_pll_enable
)
4443 encoder
->pre_pll_enable(encoder
);
4445 I915_WRITE(DPLL(pipe
), dpll
);
4447 /* Wait for the clocks to stabilize. */
4448 POSTING_READ(DPLL(pipe
));
4451 /* The pixel multiplier can only be updated once the
4452 * DPLL is enabled and the clocks are stable.
4454 * So write it again.
4456 I915_WRITE(DPLL(pipe
), dpll
);
4459 static void intel_set_pipe_timings(struct intel_crtc
*intel_crtc
,
4460 struct drm_display_mode
*mode
,
4461 struct drm_display_mode
*adjusted_mode
)
4463 struct drm_device
*dev
= intel_crtc
->base
.dev
;
4464 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4465 enum pipe pipe
= intel_crtc
->pipe
;
4466 enum transcoder cpu_transcoder
= intel_crtc
->cpu_transcoder
;
4467 uint32_t vsyncshift
;
4469 if (!IS_GEN2(dev
) && adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
) {
4470 /* the chip adds 2 halflines automatically */
4471 adjusted_mode
->crtc_vtotal
-= 1;
4472 adjusted_mode
->crtc_vblank_end
-= 1;
4473 vsyncshift
= adjusted_mode
->crtc_hsync_start
4474 - adjusted_mode
->crtc_htotal
/ 2;
4479 if (INTEL_INFO(dev
)->gen
> 3)
4480 I915_WRITE(VSYNCSHIFT(cpu_transcoder
), vsyncshift
);
4482 I915_WRITE(HTOTAL(cpu_transcoder
),
4483 (adjusted_mode
->crtc_hdisplay
- 1) |
4484 ((adjusted_mode
->crtc_htotal
- 1) << 16));
4485 I915_WRITE(HBLANK(cpu_transcoder
),
4486 (adjusted_mode
->crtc_hblank_start
- 1) |
4487 ((adjusted_mode
->crtc_hblank_end
- 1) << 16));
4488 I915_WRITE(HSYNC(cpu_transcoder
),
4489 (adjusted_mode
->crtc_hsync_start
- 1) |
4490 ((adjusted_mode
->crtc_hsync_end
- 1) << 16));
4492 I915_WRITE(VTOTAL(cpu_transcoder
),
4493 (adjusted_mode
->crtc_vdisplay
- 1) |
4494 ((adjusted_mode
->crtc_vtotal
- 1) << 16));
4495 I915_WRITE(VBLANK(cpu_transcoder
),
4496 (adjusted_mode
->crtc_vblank_start
- 1) |
4497 ((adjusted_mode
->crtc_vblank_end
- 1) << 16));
4498 I915_WRITE(VSYNC(cpu_transcoder
),
4499 (adjusted_mode
->crtc_vsync_start
- 1) |
4500 ((adjusted_mode
->crtc_vsync_end
- 1) << 16));
4502 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
4503 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
4504 * documented on the DDI_FUNC_CTL register description, EDP Input Select
4506 if (IS_HASWELL(dev
) && cpu_transcoder
== TRANSCODER_EDP
&&
4507 (pipe
== PIPE_B
|| pipe
== PIPE_C
))
4508 I915_WRITE(VTOTAL(pipe
), I915_READ(VTOTAL(cpu_transcoder
)));
4510 /* pipesrc controls the size that is scaled from, which should
4511 * always be the user's requested size.
4513 I915_WRITE(PIPESRC(pipe
),
4514 ((mode
->hdisplay
- 1) << 16) | (mode
->vdisplay
- 1));
4517 static int i9xx_crtc_mode_set(struct drm_crtc
*crtc
,
4519 struct drm_framebuffer
*fb
)
4521 struct drm_device
*dev
= crtc
->dev
;
4522 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4523 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4524 struct drm_display_mode
*adjusted_mode
=
4525 &intel_crtc
->config
.adjusted_mode
;
4526 struct drm_display_mode
*mode
= &intel_crtc
->config
.requested_mode
;
4527 int pipe
= intel_crtc
->pipe
;
4528 int plane
= intel_crtc
->plane
;
4529 int refclk
, num_connectors
= 0;
4530 intel_clock_t clock
, reduced_clock
;
4531 u32 dspcntr
, pipeconf
;
4532 bool ok
, has_reduced_clock
= false, is_sdvo
= false;
4533 bool is_lvds
= false, is_tv
= false, is_dp
= false;
4534 struct intel_encoder
*encoder
;
4535 const intel_limit_t
*limit
;
4538 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
4539 switch (encoder
->type
) {
4540 case INTEL_OUTPUT_LVDS
:
4543 case INTEL_OUTPUT_SDVO
:
4544 case INTEL_OUTPUT_HDMI
:
4546 if (encoder
->needs_tv_clock
)
4549 case INTEL_OUTPUT_TVOUT
:
4552 case INTEL_OUTPUT_DISPLAYPORT
:
4560 refclk
= i9xx_get_refclk(crtc
, num_connectors
);
4563 * Returns a set of divisors for the desired target clock with the given
4564 * refclk, or FALSE. The returned values represent the clock equation:
4565 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
4567 limit
= intel_limit(crtc
, refclk
);
4568 ok
= limit
->find_pll(limit
, crtc
, adjusted_mode
->clock
, refclk
, NULL
,
4571 DRM_ERROR("Couldn't find PLL settings for mode!\n");
4575 /* Ensure that the cursor is valid for the new mode before changing... */
4576 intel_crtc_update_cursor(crtc
, true);
4578 if (is_lvds
&& dev_priv
->lvds_downclock_avail
) {
4580 * Ensure we match the reduced clock's P to the target clock.
4581 * If the clocks don't match, we can't switch the display clock
4582 * by using the FP0/FP1. In such case we will disable the LVDS
4583 * downclock feature.
4585 has_reduced_clock
= limit
->find_pll(limit
, crtc
,
4586 dev_priv
->lvds_downclock
,
4592 if (is_sdvo
&& is_tv
)
4593 i9xx_adjust_sdvo_tv_clock(adjusted_mode
, &clock
);
4596 i8xx_update_pll(crtc
, adjusted_mode
, &clock
,
4597 has_reduced_clock
? &reduced_clock
: NULL
,
4599 else if (IS_VALLEYVIEW(dev
))
4600 vlv_update_pll(crtc
, &clock
,
4601 has_reduced_clock
? &reduced_clock
: NULL
,
4604 i9xx_update_pll(crtc
, &clock
,
4605 has_reduced_clock
? &reduced_clock
: NULL
,
4608 /* setup pipeconf */
4609 pipeconf
= I915_READ(PIPECONF(pipe
));
4611 /* Set up the display plane register */
4612 dspcntr
= DISPPLANE_GAMMA_ENABLE
;
4614 if (!IS_VALLEYVIEW(dev
)) {
4616 dspcntr
&= ~DISPPLANE_SEL_PIPE_MASK
;
4618 dspcntr
|= DISPPLANE_SEL_PIPE_B
;
4621 if (pipe
== 0 && INTEL_INFO(dev
)->gen
< 4) {
4622 /* Enable pixel doubling when the dot clock is > 90% of the (display)
4625 * XXX: No double-wide on 915GM pipe B. Is that the only reason for the
4629 dev_priv
->display
.get_display_clock_speed(dev
) * 9 / 10)
4630 pipeconf
|= PIPECONF_DOUBLE_WIDE
;
4632 pipeconf
&= ~PIPECONF_DOUBLE_WIDE
;
4635 /* default to 8bpc */
4636 pipeconf
&= ~(PIPECONF_BPC_MASK
| PIPECONF_DITHER_EN
);
4638 if (intel_crtc
->config
.dither
) {
4639 pipeconf
|= PIPECONF_6BPC
|
4640 PIPECONF_DITHER_EN
|
4641 PIPECONF_DITHER_TYPE_SP
;
4645 if (IS_VALLEYVIEW(dev
) && intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
)) {
4646 if (intel_crtc
->config
.dither
) {
4647 pipeconf
|= PIPECONF_6BPC
|
4649 I965_PIPECONF_ACTIVE
;
4653 DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe
== 0 ? 'A' : 'B');
4654 drm_mode_debug_printmodeline(mode
);
4656 if (HAS_PIPE_CXSR(dev
)) {
4657 if (intel_crtc
->lowfreq_avail
) {
4658 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
4659 pipeconf
|= PIPECONF_CXSR_DOWNCLOCK
;
4661 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
4662 pipeconf
&= ~PIPECONF_CXSR_DOWNCLOCK
;
4666 pipeconf
&= ~PIPECONF_INTERLACE_MASK
;
4667 if (!IS_GEN2(dev
) &&
4668 adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
)
4669 pipeconf
|= PIPECONF_INTERLACE_W_FIELD_INDICATION
;
4671 pipeconf
|= PIPECONF_PROGRESSIVE
;
4673 intel_set_pipe_timings(intel_crtc
, mode
, adjusted_mode
);
4675 /* pipesrc and dspsize control the size that is scaled from,
4676 * which should always be the user's requested size.
4678 I915_WRITE(DSPSIZE(plane
),
4679 ((mode
->vdisplay
- 1) << 16) |
4680 (mode
->hdisplay
- 1));
4681 I915_WRITE(DSPPOS(plane
), 0);
4683 I915_WRITE(PIPECONF(pipe
), pipeconf
);
4684 POSTING_READ(PIPECONF(pipe
));
4685 intel_enable_pipe(dev_priv
, pipe
, false);
4687 intel_wait_for_vblank(dev
, pipe
);
4689 I915_WRITE(DSPCNTR(plane
), dspcntr
);
4690 POSTING_READ(DSPCNTR(plane
));
4692 ret
= intel_pipe_set_base(crtc
, x
, y
, fb
);
4694 intel_update_watermarks(dev
);
4699 static void ironlake_init_pch_refclk(struct drm_device
*dev
)
4701 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4702 struct drm_mode_config
*mode_config
= &dev
->mode_config
;
4703 struct intel_encoder
*encoder
;
4705 bool has_lvds
= false;
4706 bool has_cpu_edp
= false;
4707 bool has_pch_edp
= false;
4708 bool has_panel
= false;
4709 bool has_ck505
= false;
4710 bool can_ssc
= false;
4712 /* We need to take the global config into account */
4713 list_for_each_entry(encoder
, &mode_config
->encoder_list
,
4715 switch (encoder
->type
) {
4716 case INTEL_OUTPUT_LVDS
:
4720 case INTEL_OUTPUT_EDP
:
4722 if (intel_encoder_is_pch_edp(&encoder
->base
))
4730 if (HAS_PCH_IBX(dev
)) {
4731 has_ck505
= dev_priv
->display_clock_mode
;
4732 can_ssc
= has_ck505
;
4738 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_pch_edp %d has_cpu_edp %d has_ck505 %d\n",
4739 has_panel
, has_lvds
, has_pch_edp
, has_cpu_edp
,
4742 /* Ironlake: try to setup display ref clock before DPLL
4743 * enabling. This is only under driver's control after
4744 * PCH B stepping, previous chipset stepping should be
4745 * ignoring this setting.
4747 val
= I915_READ(PCH_DREF_CONTROL
);
4749 /* As we must carefully and slowly disable/enable each source in turn,
4750 * compute the final state we want first and check if we need to
4751 * make any changes at all.
4754 final
&= ~DREF_NONSPREAD_SOURCE_MASK
;
4756 final
|= DREF_NONSPREAD_CK505_ENABLE
;
4758 final
|= DREF_NONSPREAD_SOURCE_ENABLE
;
4760 final
&= ~DREF_SSC_SOURCE_MASK
;
4761 final
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
4762 final
&= ~DREF_SSC1_ENABLE
;
4765 final
|= DREF_SSC_SOURCE_ENABLE
;
4767 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
4768 final
|= DREF_SSC1_ENABLE
;
4771 if (intel_panel_use_ssc(dev_priv
) && can_ssc
)
4772 final
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
4774 final
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
4776 final
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
4778 final
|= DREF_SSC_SOURCE_DISABLE
;
4779 final
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
4785 /* Always enable nonspread source */
4786 val
&= ~DREF_NONSPREAD_SOURCE_MASK
;
4789 val
|= DREF_NONSPREAD_CK505_ENABLE
;
4791 val
|= DREF_NONSPREAD_SOURCE_ENABLE
;
4794 val
&= ~DREF_SSC_SOURCE_MASK
;
4795 val
|= DREF_SSC_SOURCE_ENABLE
;
4797 /* SSC must be turned on before enabling the CPU output */
4798 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
4799 DRM_DEBUG_KMS("Using SSC on panel\n");
4800 val
|= DREF_SSC1_ENABLE
;
4802 val
&= ~DREF_SSC1_ENABLE
;
4804 /* Get SSC going before enabling the outputs */
4805 I915_WRITE(PCH_DREF_CONTROL
, val
);
4806 POSTING_READ(PCH_DREF_CONTROL
);
4809 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
4811 /* Enable CPU source on CPU attached eDP */
4813 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
4814 DRM_DEBUG_KMS("Using SSC on eDP\n");
4815 val
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
4818 val
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
4820 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
4822 I915_WRITE(PCH_DREF_CONTROL
, val
);
4823 POSTING_READ(PCH_DREF_CONTROL
);
4826 DRM_DEBUG_KMS("Disabling SSC entirely\n");
4828 val
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
4830 /* Turn off CPU output */
4831 val
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
4833 I915_WRITE(PCH_DREF_CONTROL
, val
);
4834 POSTING_READ(PCH_DREF_CONTROL
);
4837 /* Turn off the SSC source */
4838 val
&= ~DREF_SSC_SOURCE_MASK
;
4839 val
|= DREF_SSC_SOURCE_DISABLE
;
4842 val
&= ~DREF_SSC1_ENABLE
;
4844 I915_WRITE(PCH_DREF_CONTROL
, val
);
4845 POSTING_READ(PCH_DREF_CONTROL
);
4849 BUG_ON(val
!= final
);
4852 /* Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O. */
4853 static void lpt_init_pch_refclk(struct drm_device
*dev
)
4855 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4856 struct drm_mode_config
*mode_config
= &dev
->mode_config
;
4857 struct intel_encoder
*encoder
;
4858 bool has_vga
= false;
4859 bool is_sdv
= false;
4862 list_for_each_entry(encoder
, &mode_config
->encoder_list
, base
.head
) {
4863 switch (encoder
->type
) {
4864 case INTEL_OUTPUT_ANALOG
:
4873 mutex_lock(&dev_priv
->dpio_lock
);
4875 /* XXX: Rip out SDV support once Haswell ships for real. */
4876 if (IS_HASWELL(dev
) && (dev
->pci_device
& 0xFF00) == 0x0C00)
4879 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
4880 tmp
&= ~SBI_SSCCTL_DISABLE
;
4881 tmp
|= SBI_SSCCTL_PATHALT
;
4882 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
4886 tmp
= intel_sbi_read(dev_priv
, SBI_SSCCTL
, SBI_ICLK
);
4887 tmp
&= ~SBI_SSCCTL_PATHALT
;
4888 intel_sbi_write(dev_priv
, SBI_SSCCTL
, tmp
, SBI_ICLK
);
4891 tmp
= I915_READ(SOUTH_CHICKEN2
);
4892 tmp
|= FDI_MPHY_IOSFSB_RESET_CTL
;
4893 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
4895 if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2
) &
4896 FDI_MPHY_IOSFSB_RESET_STATUS
, 100))
4897 DRM_ERROR("FDI mPHY reset assert timeout\n");
4899 tmp
= I915_READ(SOUTH_CHICKEN2
);
4900 tmp
&= ~FDI_MPHY_IOSFSB_RESET_CTL
;
4901 I915_WRITE(SOUTH_CHICKEN2
, tmp
);
4903 if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2
) &
4904 FDI_MPHY_IOSFSB_RESET_STATUS
) == 0,
4906 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
4909 tmp
= intel_sbi_read(dev_priv
, 0x8008, SBI_MPHY
);
4910 tmp
&= ~(0xFF << 24);
4911 tmp
|= (0x12 << 24);
4912 intel_sbi_write(dev_priv
, 0x8008, tmp
, SBI_MPHY
);
4915 tmp
= intel_sbi_read(dev_priv
, 0x808C, SBI_MPHY
);
4917 tmp
|= (1 << 6) | (1 << 0);
4918 intel_sbi_write(dev_priv
, 0x808C, tmp
, SBI_MPHY
);
4922 tmp
= intel_sbi_read(dev_priv
, 0x800C, SBI_MPHY
);
4924 intel_sbi_write(dev_priv
, 0x800C, tmp
, SBI_MPHY
);
4927 tmp
= intel_sbi_read(dev_priv
, 0x2008, SBI_MPHY
);
4929 intel_sbi_write(dev_priv
, 0x2008, tmp
, SBI_MPHY
);
4931 tmp
= intel_sbi_read(dev_priv
, 0x2108, SBI_MPHY
);
4933 intel_sbi_write(dev_priv
, 0x2108, tmp
, SBI_MPHY
);
4936 tmp
= intel_sbi_read(dev_priv
, 0x2038, SBI_MPHY
);
4937 tmp
|= (0x3F << 24) | (0xF << 20) | (0xF << 16);
4938 intel_sbi_write(dev_priv
, 0x2038, tmp
, SBI_MPHY
);
4940 tmp
= intel_sbi_read(dev_priv
, 0x2138, SBI_MPHY
);
4941 tmp
|= (0x3F << 24) | (0xF << 20) | (0xF << 16);
4942 intel_sbi_write(dev_priv
, 0x2138, tmp
, SBI_MPHY
);
4944 tmp
= intel_sbi_read(dev_priv
, 0x203C, SBI_MPHY
);
4946 intel_sbi_write(dev_priv
, 0x203C, tmp
, SBI_MPHY
);
4948 tmp
= intel_sbi_read(dev_priv
, 0x213C, SBI_MPHY
);
4950 intel_sbi_write(dev_priv
, 0x213C, tmp
, SBI_MPHY
);
4953 tmp
= intel_sbi_read(dev_priv
, 0x206C, SBI_MPHY
);
4954 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
4955 intel_sbi_write(dev_priv
, 0x206C, tmp
, SBI_MPHY
);
4957 tmp
= intel_sbi_read(dev_priv
, 0x216C, SBI_MPHY
);
4958 tmp
|= (1 << 24) | (1 << 21) | (1 << 18);
4959 intel_sbi_write(dev_priv
, 0x216C, tmp
, SBI_MPHY
);
4962 tmp
= intel_sbi_read(dev_priv
, 0x2080, SBI_MPHY
);
4965 intel_sbi_write(dev_priv
, 0x2080, tmp
, SBI_MPHY
);
4967 tmp
= intel_sbi_read(dev_priv
, 0x2180, SBI_MPHY
);
4970 intel_sbi_write(dev_priv
, 0x2180, tmp
, SBI_MPHY
);
4973 tmp
= intel_sbi_read(dev_priv
, 0x208C, SBI_MPHY
);
4976 intel_sbi_write(dev_priv
, 0x208C, tmp
, SBI_MPHY
);
4978 tmp
= intel_sbi_read(dev_priv
, 0x218C, SBI_MPHY
);
4981 intel_sbi_write(dev_priv
, 0x218C, tmp
, SBI_MPHY
);
4983 tmp
= intel_sbi_read(dev_priv
, 0x2098, SBI_MPHY
);
4984 tmp
&= ~(0xFF << 16);
4985 tmp
|= (0x1C << 16);
4986 intel_sbi_write(dev_priv
, 0x2098, tmp
, SBI_MPHY
);
4988 tmp
= intel_sbi_read(dev_priv
, 0x2198, SBI_MPHY
);
4989 tmp
&= ~(0xFF << 16);
4990 tmp
|= (0x1C << 16);
4991 intel_sbi_write(dev_priv
, 0x2198, tmp
, SBI_MPHY
);
4994 tmp
= intel_sbi_read(dev_priv
, 0x20C4, SBI_MPHY
);
4996 intel_sbi_write(dev_priv
, 0x20C4, tmp
, SBI_MPHY
);
4998 tmp
= intel_sbi_read(dev_priv
, 0x21C4, SBI_MPHY
);
5000 intel_sbi_write(dev_priv
, 0x21C4, tmp
, SBI_MPHY
);
5002 tmp
= intel_sbi_read(dev_priv
, 0x20EC, SBI_MPHY
);
5003 tmp
&= ~(0xF << 28);
5005 intel_sbi_write(dev_priv
, 0x20EC, tmp
, SBI_MPHY
);
5007 tmp
= intel_sbi_read(dev_priv
, 0x21EC, SBI_MPHY
);
5008 tmp
&= ~(0xF << 28);
5010 intel_sbi_write(dev_priv
, 0x21EC, tmp
, SBI_MPHY
);
5013 /* ULT uses SBI_GEN0, but ULT doesn't have VGA, so we don't care. */
5014 tmp
= intel_sbi_read(dev_priv
, SBI_DBUFF0
, SBI_ICLK
);
5015 tmp
|= SBI_DBUFF0_ENABLE
;
5016 intel_sbi_write(dev_priv
, SBI_DBUFF0
, tmp
, SBI_ICLK
);
5018 mutex_unlock(&dev_priv
->dpio_lock
);
5022 * Initialize reference clocks when the driver loads
5024 void intel_init_pch_refclk(struct drm_device
*dev
)
5026 if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
5027 ironlake_init_pch_refclk(dev
);
5028 else if (HAS_PCH_LPT(dev
))
5029 lpt_init_pch_refclk(dev
);
5032 static int ironlake_get_refclk(struct drm_crtc
*crtc
)
5034 struct drm_device
*dev
= crtc
->dev
;
5035 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5036 struct intel_encoder
*encoder
;
5037 struct intel_encoder
*edp_encoder
= NULL
;
5038 int num_connectors
= 0;
5039 bool is_lvds
= false;
5041 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
5042 switch (encoder
->type
) {
5043 case INTEL_OUTPUT_LVDS
:
5046 case INTEL_OUTPUT_EDP
:
5047 edp_encoder
= encoder
;
5053 if (is_lvds
&& intel_panel_use_ssc(dev_priv
) && num_connectors
< 2) {
5054 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
5055 dev_priv
->lvds_ssc_freq
);
5056 return dev_priv
->lvds_ssc_freq
* 1000;
5062 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
,
5063 struct drm_display_mode
*adjusted_mode
,
5066 struct drm_i915_private
*dev_priv
= crtc
->dev
->dev_private
;
5067 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5068 int pipe
= intel_crtc
->pipe
;
5071 val
= I915_READ(PIPECONF(pipe
));
5073 val
&= ~PIPECONF_BPC_MASK
;
5074 switch (intel_crtc
->config
.pipe_bpp
) {
5076 val
|= PIPECONF_6BPC
;
5079 val
|= PIPECONF_8BPC
;
5082 val
|= PIPECONF_10BPC
;
5085 val
|= PIPECONF_12BPC
;
5088 /* Case prevented by intel_choose_pipe_bpp_dither. */
5092 val
&= ~(PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_MASK
);
5094 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
5096 val
&= ~PIPECONF_INTERLACE_MASK
;
5097 if (adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
)
5098 val
|= PIPECONF_INTERLACED_ILK
;
5100 val
|= PIPECONF_PROGRESSIVE
;
5102 if (intel_crtc
->config
.limited_color_range
)
5103 val
|= PIPECONF_COLOR_RANGE_SELECT
;
5105 val
&= ~PIPECONF_COLOR_RANGE_SELECT
;
5107 I915_WRITE(PIPECONF(pipe
), val
);
5108 POSTING_READ(PIPECONF(pipe
));
5112 * Set up the pipe CSC unit.
5114 * Currently only full range RGB to limited range RGB conversion
5115 * is supported, but eventually this should handle various
5116 * RGB<->YCbCr scenarios as well.
5118 static void intel_set_pipe_csc(struct drm_crtc
*crtc
)
5120 struct drm_device
*dev
= crtc
->dev
;
5121 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5122 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5123 int pipe
= intel_crtc
->pipe
;
5124 uint16_t coeff
= 0x7800; /* 1.0 */
5127 * TODO: Check what kind of values actually come out of the pipe
5128 * with these coeff/postoff values and adjust to get the best
5129 * accuracy. Perhaps we even need to take the bpc value into
5133 if (intel_crtc
->config
.limited_color_range
)
5134 coeff
= ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */
5137 * GY/GU and RY/RU should be the other way around according
5138 * to BSpec, but reality doesn't agree. Just set them up in
5139 * a way that results in the correct picture.
5141 I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe
), coeff
<< 16);
5142 I915_WRITE(PIPE_CSC_COEFF_BY(pipe
), 0);
5144 I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe
), coeff
);
5145 I915_WRITE(PIPE_CSC_COEFF_BU(pipe
), 0);
5147 I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe
), 0);
5148 I915_WRITE(PIPE_CSC_COEFF_BV(pipe
), coeff
<< 16);
5150 I915_WRITE(PIPE_CSC_PREOFF_HI(pipe
), 0);
5151 I915_WRITE(PIPE_CSC_PREOFF_ME(pipe
), 0);
5152 I915_WRITE(PIPE_CSC_PREOFF_LO(pipe
), 0);
5154 if (INTEL_INFO(dev
)->gen
> 6) {
5155 uint16_t postoff
= 0;
5157 if (intel_crtc
->config
.limited_color_range
)
5158 postoff
= (16 * (1 << 13) / 255) & 0x1fff;
5160 I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe
), postoff
);
5161 I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe
), postoff
);
5162 I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe
), postoff
);
5164 I915_WRITE(PIPE_CSC_MODE(pipe
), 0);
5166 uint32_t mode
= CSC_MODE_YUV_TO_RGB
;
5168 if (intel_crtc
->config
.limited_color_range
)
5169 mode
|= CSC_BLACK_SCREEN_OFFSET
;
5171 I915_WRITE(PIPE_CSC_MODE(pipe
), mode
);
5175 static void haswell_set_pipeconf(struct drm_crtc
*crtc
,
5176 struct drm_display_mode
*adjusted_mode
,
5179 struct drm_i915_private
*dev_priv
= crtc
->dev
->dev_private
;
5180 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5181 enum transcoder cpu_transcoder
= intel_crtc
->cpu_transcoder
;
5184 val
= I915_READ(PIPECONF(cpu_transcoder
));
5186 val
&= ~(PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_MASK
);
5188 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
5190 val
&= ~PIPECONF_INTERLACE_MASK_HSW
;
5191 if (adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
)
5192 val
|= PIPECONF_INTERLACED_ILK
;
5194 val
|= PIPECONF_PROGRESSIVE
;
5196 I915_WRITE(PIPECONF(cpu_transcoder
), val
);
5197 POSTING_READ(PIPECONF(cpu_transcoder
));
5200 static bool ironlake_compute_clocks(struct drm_crtc
*crtc
,
5201 struct drm_display_mode
*adjusted_mode
,
5202 intel_clock_t
*clock
,
5203 bool *has_reduced_clock
,
5204 intel_clock_t
*reduced_clock
)
5206 struct drm_device
*dev
= crtc
->dev
;
5207 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5208 struct intel_encoder
*intel_encoder
;
5210 const intel_limit_t
*limit
;
5211 bool ret
, is_sdvo
= false, is_tv
= false, is_lvds
= false;
5213 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
) {
5214 switch (intel_encoder
->type
) {
5215 case INTEL_OUTPUT_LVDS
:
5218 case INTEL_OUTPUT_SDVO
:
5219 case INTEL_OUTPUT_HDMI
:
5221 if (intel_encoder
->needs_tv_clock
)
5224 case INTEL_OUTPUT_TVOUT
:
5230 refclk
= ironlake_get_refclk(crtc
);
5233 * Returns a set of divisors for the desired target clock with the given
5234 * refclk, or FALSE. The returned values represent the clock equation:
5235 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
5237 limit
= intel_limit(crtc
, refclk
);
5238 ret
= limit
->find_pll(limit
, crtc
, adjusted_mode
->clock
, refclk
, NULL
,
5243 if (is_lvds
&& dev_priv
->lvds_downclock_avail
) {
5245 * Ensure we match the reduced clock's P to the target clock.
5246 * If the clocks don't match, we can't switch the display clock
5247 * by using the FP0/FP1. In such case we will disable the LVDS
5248 * downclock feature.
5250 *has_reduced_clock
= limit
->find_pll(limit
, crtc
,
5251 dev_priv
->lvds_downclock
,
5257 if (is_sdvo
&& is_tv
)
5258 i9xx_adjust_sdvo_tv_clock(adjusted_mode
, clock
);
5263 static void cpt_enable_fdi_bc_bifurcation(struct drm_device
*dev
)
5265 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5268 temp
= I915_READ(SOUTH_CHICKEN1
);
5269 if (temp
& FDI_BC_BIFURCATION_SELECT
)
5272 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B
)) & FDI_RX_ENABLE
);
5273 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C
)) & FDI_RX_ENABLE
);
5275 temp
|= FDI_BC_BIFURCATION_SELECT
;
5276 DRM_DEBUG_KMS("enabling fdi C rx\n");
5277 I915_WRITE(SOUTH_CHICKEN1
, temp
);
5278 POSTING_READ(SOUTH_CHICKEN1
);
5281 static bool ironlake_check_fdi_lanes(struct intel_crtc
*intel_crtc
)
5283 struct drm_device
*dev
= intel_crtc
->base
.dev
;
5284 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5285 struct intel_crtc
*pipe_B_crtc
=
5286 to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[PIPE_B
]);
5288 DRM_DEBUG_KMS("checking fdi config on pipe %i, lanes %i\n",
5289 intel_crtc
->pipe
, intel_crtc
->fdi_lanes
);
5290 if (intel_crtc
->fdi_lanes
> 4) {
5291 DRM_DEBUG_KMS("invalid fdi lane config on pipe %i: %i lanes\n",
5292 intel_crtc
->pipe
, intel_crtc
->fdi_lanes
);
5293 /* Clamp lanes to avoid programming the hw with bogus values. */
5294 intel_crtc
->fdi_lanes
= 4;
5299 if (INTEL_INFO(dev
)->num_pipes
== 2)
5302 switch (intel_crtc
->pipe
) {
5306 if (dev_priv
->pipe_to_crtc_mapping
[PIPE_C
]->enabled
&&
5307 intel_crtc
->fdi_lanes
> 2) {
5308 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %i: %i lanes\n",
5309 intel_crtc
->pipe
, intel_crtc
->fdi_lanes
);
5310 /* Clamp lanes to avoid programming the hw with bogus values. */
5311 intel_crtc
->fdi_lanes
= 2;
5316 if (intel_crtc
->fdi_lanes
> 2)
5317 WARN_ON(I915_READ(SOUTH_CHICKEN1
) & FDI_BC_BIFURCATION_SELECT
);
5319 cpt_enable_fdi_bc_bifurcation(dev
);
5323 if (!pipe_B_crtc
->base
.enabled
|| pipe_B_crtc
->fdi_lanes
<= 2) {
5324 if (intel_crtc
->fdi_lanes
> 2) {
5325 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %i: %i lanes\n",
5326 intel_crtc
->pipe
, intel_crtc
->fdi_lanes
);
5327 /* Clamp lanes to avoid programming the hw with bogus values. */
5328 intel_crtc
->fdi_lanes
= 2;
5333 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
5337 cpt_enable_fdi_bc_bifurcation(dev
);
5345 int ironlake_get_lanes_required(int target_clock
, int link_bw
, int bpp
)
5348 * Account for spread spectrum to avoid
5349 * oversubscribing the link. Max center spread
5350 * is 2.5%; use 5% for safety's sake.
5352 u32 bps
= target_clock
* bpp
* 21 / 20;
5353 return bps
/ (link_bw
* 8) + 1;
5356 static void ironlake_set_m_n(struct drm_crtc
*crtc
)
5358 struct drm_device
*dev
= crtc
->dev
;
5359 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5360 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5361 struct drm_display_mode
*adjusted_mode
=
5362 &intel_crtc
->config
.adjusted_mode
;
5363 struct drm_display_mode
*mode
= &intel_crtc
->config
.requested_mode
;
5364 enum transcoder cpu_transcoder
= intel_crtc
->cpu_transcoder
;
5365 struct intel_encoder
*intel_encoder
, *edp_encoder
= NULL
;
5366 struct intel_link_m_n m_n
= {0};
5367 int target_clock
, lane
, link_bw
;
5368 bool is_dp
= false, is_cpu_edp
= false;
5370 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
) {
5371 switch (intel_encoder
->type
) {
5372 case INTEL_OUTPUT_DISPLAYPORT
:
5375 case INTEL_OUTPUT_EDP
:
5377 if (!intel_encoder_is_pch_edp(&intel_encoder
->base
))
5379 edp_encoder
= intel_encoder
;
5386 /* CPU eDP doesn't require FDI link, so just set DP M/N
5387 according to current link config */
5389 intel_edp_link_config(edp_encoder
, &lane
, &link_bw
);
5391 /* FDI is a binary signal running at ~2.7GHz, encoding
5392 * each output octet as 10 bits. The actual frequency
5393 * is stored as a divider into a 100MHz clock, and the
5394 * mode pixel clock is stored in units of 1KHz.
5395 * Hence the bw of each lane in terms of the mode signal
5398 link_bw
= intel_fdi_link_freq(dev
) * MHz(100)/KHz(1)/10;
5401 /* [e]DP over FDI requires target mode clock instead of link clock. */
5403 target_clock
= intel_edp_target_clock(edp_encoder
, mode
);
5405 target_clock
= mode
->clock
;
5407 target_clock
= adjusted_mode
->clock
;
5410 lane
= ironlake_get_lanes_required(target_clock
, link_bw
,
5411 intel_crtc
->config
.pipe_bpp
);
5413 intel_crtc
->fdi_lanes
= lane
;
5415 if (intel_crtc
->config
.pixel_multiplier
> 1)
5416 link_bw
*= intel_crtc
->config
.pixel_multiplier
;
5417 intel_link_compute_m_n(intel_crtc
->config
.pipe_bpp
, lane
, target_clock
,
5420 I915_WRITE(PIPE_DATA_M1(cpu_transcoder
), TU_SIZE(m_n
.tu
) | m_n
.gmch_m
);
5421 I915_WRITE(PIPE_DATA_N1(cpu_transcoder
), m_n
.gmch_n
);
5422 I915_WRITE(PIPE_LINK_M1(cpu_transcoder
), m_n
.link_m
);
5423 I915_WRITE(PIPE_LINK_N1(cpu_transcoder
), m_n
.link_n
);
5426 static uint32_t ironlake_compute_dpll(struct intel_crtc
*intel_crtc
,
5427 intel_clock_t
*clock
, u32 fp
)
5429 struct drm_crtc
*crtc
= &intel_crtc
->base
;
5430 struct drm_device
*dev
= crtc
->dev
;
5431 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5432 struct intel_encoder
*intel_encoder
;
5434 int factor
, num_connectors
= 0;
5435 bool is_lvds
= false, is_sdvo
= false, is_tv
= false;
5436 bool is_dp
= false, is_cpu_edp
= false;
5438 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
) {
5439 switch (intel_encoder
->type
) {
5440 case INTEL_OUTPUT_LVDS
:
5443 case INTEL_OUTPUT_SDVO
:
5444 case INTEL_OUTPUT_HDMI
:
5446 if (intel_encoder
->needs_tv_clock
)
5449 case INTEL_OUTPUT_TVOUT
:
5452 case INTEL_OUTPUT_DISPLAYPORT
:
5455 case INTEL_OUTPUT_EDP
:
5457 if (!intel_encoder_is_pch_edp(&intel_encoder
->base
))
5465 /* Enable autotuning of the PLL clock (if permissible) */
5468 if ((intel_panel_use_ssc(dev_priv
) &&
5469 dev_priv
->lvds_ssc_freq
== 100) ||
5470 intel_is_dual_link_lvds(dev
))
5472 } else if (is_sdvo
&& is_tv
)
5475 if (clock
->m
< factor
* clock
->n
)
5481 dpll
|= DPLLB_MODE_LVDS
;
5483 dpll
|= DPLLB_MODE_DAC_SERIAL
;
5485 if (intel_crtc
->config
.pixel_multiplier
> 1) {
5486 dpll
|= (intel_crtc
->config
.pixel_multiplier
- 1)
5487 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
;
5489 dpll
|= DPLL_DVO_HIGH_SPEED
;
5491 if (is_dp
&& !is_cpu_edp
)
5492 dpll
|= DPLL_DVO_HIGH_SPEED
;
5494 /* compute bitmask from p1 value */
5495 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
5497 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
5499 switch (clock
->p2
) {
5501 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
5504 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
5507 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
5510 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
5514 if (is_sdvo
&& is_tv
)
5515 dpll
|= PLL_REF_INPUT_TVCLKINBC
;
5517 /* XXX: just matching BIOS for now */
5518 /* dpll |= PLL_REF_INPUT_TVCLKINBC; */
5520 else if (is_lvds
&& intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
5521 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
5523 dpll
|= PLL_REF_INPUT_DREFCLK
;
5528 static int ironlake_crtc_mode_set(struct drm_crtc
*crtc
,
5530 struct drm_framebuffer
*fb
)
5532 struct drm_device
*dev
= crtc
->dev
;
5533 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5534 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5535 struct drm_display_mode
*adjusted_mode
=
5536 &intel_crtc
->config
.adjusted_mode
;
5537 struct drm_display_mode
*mode
= &intel_crtc
->config
.requested_mode
;
5538 int pipe
= intel_crtc
->pipe
;
5539 int plane
= intel_crtc
->plane
;
5540 int num_connectors
= 0;
5541 intel_clock_t clock
, reduced_clock
;
5542 u32 dpll
, fp
= 0, fp2
= 0;
5543 bool ok
, has_reduced_clock
= false;
5544 bool is_lvds
= false, is_dp
= false, is_cpu_edp
= false;
5545 struct intel_encoder
*encoder
;
5547 bool dither
, fdi_config_ok
;
5549 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
5550 switch (encoder
->type
) {
5551 case INTEL_OUTPUT_LVDS
:
5554 case INTEL_OUTPUT_DISPLAYPORT
:
5557 case INTEL_OUTPUT_EDP
:
5559 if (!intel_encoder_is_pch_edp(&encoder
->base
))
5567 WARN(!(HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
)),
5568 "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev
));
5570 ok
= ironlake_compute_clocks(crtc
, adjusted_mode
, &clock
,
5571 &has_reduced_clock
, &reduced_clock
);
5573 DRM_ERROR("Couldn't find PLL settings for mode!\n");
5577 /* Ensure that the cursor is valid for the new mode before changing... */
5578 intel_crtc_update_cursor(crtc
, true);
5580 /* determine panel color depth */
5581 dither
= intel_crtc
->config
.dither
;
5582 if (is_lvds
&& dev_priv
->lvds_dither
)
5585 fp
= clock
.n
<< 16 | clock
.m1
<< 8 | clock
.m2
;
5586 if (has_reduced_clock
)
5587 fp2
= reduced_clock
.n
<< 16 | reduced_clock
.m1
<< 8 |
5590 dpll
= ironlake_compute_dpll(intel_crtc
, &clock
, fp
);
5592 DRM_DEBUG_KMS("Mode for pipe %d:\n", pipe
);
5593 drm_mode_debug_printmodeline(mode
);
5595 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
5597 struct intel_pch_pll
*pll
;
5599 pll
= intel_get_pch_pll(intel_crtc
, dpll
, fp
);
5601 DRM_DEBUG_DRIVER("failed to find PLL for pipe %d\n",
5606 intel_put_pch_pll(intel_crtc
);
5608 if (is_dp
&& !is_cpu_edp
)
5609 intel_dp_set_m_n(crtc
, mode
, adjusted_mode
);
5611 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
5612 if (encoder
->pre_pll_enable
)
5613 encoder
->pre_pll_enable(encoder
);
5615 if (intel_crtc
->pch_pll
) {
5616 I915_WRITE(intel_crtc
->pch_pll
->pll_reg
, dpll
);
5618 /* Wait for the clocks to stabilize. */
5619 POSTING_READ(intel_crtc
->pch_pll
->pll_reg
);
5622 /* The pixel multiplier can only be updated once the
5623 * DPLL is enabled and the clocks are stable.
5625 * So write it again.
5627 I915_WRITE(intel_crtc
->pch_pll
->pll_reg
, dpll
);
5630 intel_crtc
->lowfreq_avail
= false;
5631 if (intel_crtc
->pch_pll
) {
5632 if (is_lvds
&& has_reduced_clock
&& i915_powersave
) {
5633 I915_WRITE(intel_crtc
->pch_pll
->fp1_reg
, fp2
);
5634 intel_crtc
->lowfreq_avail
= true;
5636 I915_WRITE(intel_crtc
->pch_pll
->fp1_reg
, fp
);
5640 intel_set_pipe_timings(intel_crtc
, mode
, adjusted_mode
);
5642 /* Note, this also computes intel_crtc->fdi_lanes which is used below in
5643 * ironlake_check_fdi_lanes. */
5644 ironlake_set_m_n(crtc
);
5646 fdi_config_ok
= ironlake_check_fdi_lanes(intel_crtc
);
5648 ironlake_set_pipeconf(crtc
, adjusted_mode
, dither
);
5650 intel_wait_for_vblank(dev
, pipe
);
5652 /* Set up the display plane register */
5653 I915_WRITE(DSPCNTR(plane
), DISPPLANE_GAMMA_ENABLE
);
5654 POSTING_READ(DSPCNTR(plane
));
5656 ret
= intel_pipe_set_base(crtc
, x
, y
, fb
);
5658 intel_update_watermarks(dev
);
5660 intel_update_linetime_watermarks(dev
, pipe
, adjusted_mode
);
5662 return fdi_config_ok
? ret
: -EINVAL
;
5665 static void haswell_modeset_global_resources(struct drm_device
*dev
)
5667 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5668 bool enable
= false;
5669 struct intel_crtc
*crtc
;
5670 struct intel_encoder
*encoder
;
5672 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, base
.head
) {
5673 if (crtc
->pipe
!= PIPE_A
&& crtc
->base
.enabled
)
5675 /* XXX: Should check for edp transcoder here, but thanks to init
5676 * sequence that's not yet available. Just in case desktop eDP
5677 * on PORT D is possible on haswell, too. */
5680 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
5682 if (encoder
->type
!= INTEL_OUTPUT_EDP
&&
5683 encoder
->connectors_active
)
5687 /* Even the eDP panel fitter is outside the always-on well. */
5688 if (dev_priv
->pch_pf_size
)
5691 intel_set_power_well(dev
, enable
);
5694 static int haswell_crtc_mode_set(struct drm_crtc
*crtc
,
5696 struct drm_framebuffer
*fb
)
5698 struct drm_device
*dev
= crtc
->dev
;
5699 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5700 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5701 struct drm_display_mode
*adjusted_mode
=
5702 &intel_crtc
->config
.adjusted_mode
;
5703 struct drm_display_mode
*mode
= &intel_crtc
->config
.requested_mode
;
5704 int pipe
= intel_crtc
->pipe
;
5705 int plane
= intel_crtc
->plane
;
5706 int num_connectors
= 0;
5707 bool is_dp
= false, is_cpu_edp
= false;
5708 struct intel_encoder
*encoder
;
5712 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
5713 switch (encoder
->type
) {
5714 case INTEL_OUTPUT_DISPLAYPORT
:
5717 case INTEL_OUTPUT_EDP
:
5719 if (!intel_encoder_is_pch_edp(&encoder
->base
))
5727 /* We are not sure yet this won't happen. */
5728 WARN(!HAS_PCH_LPT(dev
), "Unexpected PCH type %d\n",
5729 INTEL_PCH_TYPE(dev
));
5731 WARN(num_connectors
!= 1, "%d connectors attached to pipe %c\n",
5732 num_connectors
, pipe_name(pipe
));
5734 WARN_ON(I915_READ(PIPECONF(intel_crtc
->cpu_transcoder
)) &
5735 (PIPECONF_ENABLE
| I965_PIPECONF_ACTIVE
));
5737 WARN_ON(I915_READ(DSPCNTR(plane
)) & DISPLAY_PLANE_ENABLE
);
5739 if (!intel_ddi_pll_mode_set(crtc
, adjusted_mode
->clock
))
5742 /* Ensure that the cursor is valid for the new mode before changing... */
5743 intel_crtc_update_cursor(crtc
, true);
5745 /* determine panel color depth */
5746 dither
= intel_crtc
->config
.dither
;
5748 DRM_DEBUG_KMS("Mode for pipe %d:\n", pipe
);
5749 drm_mode_debug_printmodeline(mode
);
5751 if (is_dp
&& !is_cpu_edp
)
5752 intel_dp_set_m_n(crtc
, mode
, adjusted_mode
);
5754 intel_crtc
->lowfreq_avail
= false;
5756 intel_set_pipe_timings(intel_crtc
, mode
, adjusted_mode
);
5758 if (!is_dp
|| is_cpu_edp
)
5759 ironlake_set_m_n(crtc
);
5761 haswell_set_pipeconf(crtc
, adjusted_mode
, dither
);
5763 intel_set_pipe_csc(crtc
);
5765 /* Set up the display plane register */
5766 I915_WRITE(DSPCNTR(plane
), DISPPLANE_GAMMA_ENABLE
| DISPPLANE_PIPE_CSC_ENABLE
);
5767 POSTING_READ(DSPCNTR(plane
));
5769 ret
= intel_pipe_set_base(crtc
, x
, y
, fb
);
5771 intel_update_watermarks(dev
);
5773 intel_update_linetime_watermarks(dev
, pipe
, adjusted_mode
);
5778 static int intel_crtc_mode_set(struct drm_crtc
*crtc
,
5780 struct drm_framebuffer
*fb
)
5782 struct drm_device
*dev
= crtc
->dev
;
5783 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5784 struct drm_encoder_helper_funcs
*encoder_funcs
;
5785 struct intel_encoder
*encoder
;
5786 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5787 struct drm_display_mode
*adjusted_mode
=
5788 &intel_crtc
->config
.adjusted_mode
;
5789 struct drm_display_mode
*mode
= &intel_crtc
->config
.requested_mode
;
5790 int pipe
= intel_crtc
->pipe
;
5793 if (IS_HASWELL(dev
) && intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
))
5794 intel_crtc
->cpu_transcoder
= TRANSCODER_EDP
;
5796 intel_crtc
->cpu_transcoder
= pipe
;
5798 drm_vblank_pre_modeset(dev
, pipe
);
5800 ret
= dev_priv
->display
.crtc_mode_set(crtc
, x
, y
, fb
);
5802 drm_vblank_post_modeset(dev
, pipe
);
5807 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
5808 DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
5809 encoder
->base
.base
.id
,
5810 drm_get_encoder_name(&encoder
->base
),
5811 mode
->base
.id
, mode
->name
);
5812 if (encoder
->mode_set
) {
5813 encoder
->mode_set(encoder
);
5815 encoder_funcs
= encoder
->base
.helper_private
;
5816 encoder_funcs
->mode_set(&encoder
->base
, mode
, adjusted_mode
);
5823 static bool intel_eld_uptodate(struct drm_connector
*connector
,
5824 int reg_eldv
, uint32_t bits_eldv
,
5825 int reg_elda
, uint32_t bits_elda
,
5828 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
5829 uint8_t *eld
= connector
->eld
;
5832 i
= I915_READ(reg_eldv
);
5841 i
= I915_READ(reg_elda
);
5843 I915_WRITE(reg_elda
, i
);
5845 for (i
= 0; i
< eld
[2]; i
++)
5846 if (I915_READ(reg_edid
) != *((uint32_t *)eld
+ i
))
5852 static void g4x_write_eld(struct drm_connector
*connector
,
5853 struct drm_crtc
*crtc
)
5855 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
5856 uint8_t *eld
= connector
->eld
;
5861 i
= I915_READ(G4X_AUD_VID_DID
);
5863 if (i
== INTEL_AUDIO_DEVBLC
|| i
== INTEL_AUDIO_DEVCL
)
5864 eldv
= G4X_ELDV_DEVCL_DEVBLC
;
5866 eldv
= G4X_ELDV_DEVCTG
;
5868 if (intel_eld_uptodate(connector
,
5869 G4X_AUD_CNTL_ST
, eldv
,
5870 G4X_AUD_CNTL_ST
, G4X_ELD_ADDR
,
5871 G4X_HDMIW_HDMIEDID
))
5874 i
= I915_READ(G4X_AUD_CNTL_ST
);
5875 i
&= ~(eldv
| G4X_ELD_ADDR
);
5876 len
= (i
>> 9) & 0x1f; /* ELD buffer size */
5877 I915_WRITE(G4X_AUD_CNTL_ST
, i
);
5882 len
= min_t(uint8_t, eld
[2], len
);
5883 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
5884 for (i
= 0; i
< len
; i
++)
5885 I915_WRITE(G4X_HDMIW_HDMIEDID
, *((uint32_t *)eld
+ i
));
5887 i
= I915_READ(G4X_AUD_CNTL_ST
);
5889 I915_WRITE(G4X_AUD_CNTL_ST
, i
);
5892 static void haswell_write_eld(struct drm_connector
*connector
,
5893 struct drm_crtc
*crtc
)
5895 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
5896 uint8_t *eld
= connector
->eld
;
5897 struct drm_device
*dev
= crtc
->dev
;
5898 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5902 int pipe
= to_intel_crtc(crtc
)->pipe
;
5905 int hdmiw_hdmiedid
= HSW_AUD_EDID_DATA(pipe
);
5906 int aud_cntl_st
= HSW_AUD_DIP_ELD_CTRL(pipe
);
5907 int aud_config
= HSW_AUD_CFG(pipe
);
5908 int aud_cntrl_st2
= HSW_AUD_PIN_ELD_CP_VLD
;
5911 DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n");
5913 /* Audio output enable */
5914 DRM_DEBUG_DRIVER("HDMI audio: enable codec\n");
5915 tmp
= I915_READ(aud_cntrl_st2
);
5916 tmp
|= (AUDIO_OUTPUT_ENABLE_A
<< (pipe
* 4));
5917 I915_WRITE(aud_cntrl_st2
, tmp
);
5919 /* Wait for 1 vertical blank */
5920 intel_wait_for_vblank(dev
, pipe
);
5922 /* Set ELD valid state */
5923 tmp
= I915_READ(aud_cntrl_st2
);
5924 DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%8x\n", tmp
);
5925 tmp
|= (AUDIO_ELD_VALID_A
<< (pipe
* 4));
5926 I915_WRITE(aud_cntrl_st2
, tmp
);
5927 tmp
= I915_READ(aud_cntrl_st2
);
5928 DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%8x\n", tmp
);
5930 /* Enable HDMI mode */
5931 tmp
= I915_READ(aud_config
);
5932 DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%8x\n", tmp
);
5933 /* clear N_programing_enable and N_value_index */
5934 tmp
&= ~(AUD_CONFIG_N_VALUE_INDEX
| AUD_CONFIG_N_PROG_ENABLE
);
5935 I915_WRITE(aud_config
, tmp
);
5937 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe
));
5939 eldv
= AUDIO_ELD_VALID_A
<< (pipe
* 4);
5940 intel_crtc
->eld_vld
= true;
5942 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
)) {
5943 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
5944 eld
[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
5945 I915_WRITE(aud_config
, AUD_CONFIG_N_VALUE_INDEX
); /* 0x1 = DP */
5947 I915_WRITE(aud_config
, 0);
5949 if (intel_eld_uptodate(connector
,
5950 aud_cntrl_st2
, eldv
,
5951 aud_cntl_st
, IBX_ELD_ADDRESS
,
5955 i
= I915_READ(aud_cntrl_st2
);
5957 I915_WRITE(aud_cntrl_st2
, i
);
5962 i
= I915_READ(aud_cntl_st
);
5963 i
&= ~IBX_ELD_ADDRESS
;
5964 I915_WRITE(aud_cntl_st
, i
);
5965 i
= (i
>> 29) & DIP_PORT_SEL_MASK
; /* DIP_Port_Select, 0x1 = PortB */
5966 DRM_DEBUG_DRIVER("port num:%d\n", i
);
5968 len
= min_t(uint8_t, eld
[2], 21); /* 84 bytes of hw ELD buffer */
5969 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
5970 for (i
= 0; i
< len
; i
++)
5971 I915_WRITE(hdmiw_hdmiedid
, *((uint32_t *)eld
+ i
));
5973 i
= I915_READ(aud_cntrl_st2
);
5975 I915_WRITE(aud_cntrl_st2
, i
);
5979 static void ironlake_write_eld(struct drm_connector
*connector
,
5980 struct drm_crtc
*crtc
)
5982 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
5983 uint8_t *eld
= connector
->eld
;
5991 int pipe
= to_intel_crtc(crtc
)->pipe
;
5993 if (HAS_PCH_IBX(connector
->dev
)) {
5994 hdmiw_hdmiedid
= IBX_HDMIW_HDMIEDID(pipe
);
5995 aud_config
= IBX_AUD_CFG(pipe
);
5996 aud_cntl_st
= IBX_AUD_CNTL_ST(pipe
);
5997 aud_cntrl_st2
= IBX_AUD_CNTL_ST2
;
5999 hdmiw_hdmiedid
= CPT_HDMIW_HDMIEDID(pipe
);
6000 aud_config
= CPT_AUD_CFG(pipe
);
6001 aud_cntl_st
= CPT_AUD_CNTL_ST(pipe
);
6002 aud_cntrl_st2
= CPT_AUD_CNTRL_ST2
;
6005 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe
));
6007 i
= I915_READ(aud_cntl_st
);
6008 i
= (i
>> 29) & DIP_PORT_SEL_MASK
; /* DIP_Port_Select, 0x1 = PortB */
6010 DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
6011 /* operate blindly on all ports */
6012 eldv
= IBX_ELD_VALIDB
;
6013 eldv
|= IBX_ELD_VALIDB
<< 4;
6014 eldv
|= IBX_ELD_VALIDB
<< 8;
6016 DRM_DEBUG_DRIVER("ELD on port %c\n", 'A' + i
);
6017 eldv
= IBX_ELD_VALIDB
<< ((i
- 1) * 4);
6020 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
)) {
6021 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
6022 eld
[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
6023 I915_WRITE(aud_config
, AUD_CONFIG_N_VALUE_INDEX
); /* 0x1 = DP */
6025 I915_WRITE(aud_config
, 0);
6027 if (intel_eld_uptodate(connector
,
6028 aud_cntrl_st2
, eldv
,
6029 aud_cntl_st
, IBX_ELD_ADDRESS
,
6033 i
= I915_READ(aud_cntrl_st2
);
6035 I915_WRITE(aud_cntrl_st2
, i
);
6040 i
= I915_READ(aud_cntl_st
);
6041 i
&= ~IBX_ELD_ADDRESS
;
6042 I915_WRITE(aud_cntl_st
, i
);
6044 len
= min_t(uint8_t, eld
[2], 21); /* 84 bytes of hw ELD buffer */
6045 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
6046 for (i
= 0; i
< len
; i
++)
6047 I915_WRITE(hdmiw_hdmiedid
, *((uint32_t *)eld
+ i
));
6049 i
= I915_READ(aud_cntrl_st2
);
6051 I915_WRITE(aud_cntrl_st2
, i
);
6054 void intel_write_eld(struct drm_encoder
*encoder
,
6055 struct drm_display_mode
*mode
)
6057 struct drm_crtc
*crtc
= encoder
->crtc
;
6058 struct drm_connector
*connector
;
6059 struct drm_device
*dev
= encoder
->dev
;
6060 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6062 connector
= drm_select_eld(encoder
, mode
);
6066 DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
6068 drm_get_connector_name(connector
),
6069 connector
->encoder
->base
.id
,
6070 drm_get_encoder_name(connector
->encoder
));
6072 connector
->eld
[6] = drm_av_sync_delay(connector
, mode
) / 2;
6074 if (dev_priv
->display
.write_eld
)
6075 dev_priv
->display
.write_eld(connector
, crtc
);
6078 /** Loads the palette/gamma unit for the CRTC with the prepared values */
6079 void intel_crtc_load_lut(struct drm_crtc
*crtc
)
6081 struct drm_device
*dev
= crtc
->dev
;
6082 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6083 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6084 int palreg
= PALETTE(intel_crtc
->pipe
);
6087 /* The clocks have to be on to load the palette. */
6088 if (!crtc
->enabled
|| !intel_crtc
->active
)
6091 /* use legacy palette for Ironlake */
6092 if (HAS_PCH_SPLIT(dev
))
6093 palreg
= LGC_PALETTE(intel_crtc
->pipe
);
6095 for (i
= 0; i
< 256; i
++) {
6096 I915_WRITE(palreg
+ 4 * i
,
6097 (intel_crtc
->lut_r
[i
] << 16) |
6098 (intel_crtc
->lut_g
[i
] << 8) |
6099 intel_crtc
->lut_b
[i
]);
6103 static void i845_update_cursor(struct drm_crtc
*crtc
, u32 base
)
6105 struct drm_device
*dev
= crtc
->dev
;
6106 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6107 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6108 bool visible
= base
!= 0;
6111 if (intel_crtc
->cursor_visible
== visible
)
6114 cntl
= I915_READ(_CURACNTR
);
6116 /* On these chipsets we can only modify the base whilst
6117 * the cursor is disabled.
6119 I915_WRITE(_CURABASE
, base
);
6121 cntl
&= ~(CURSOR_FORMAT_MASK
);
6122 /* XXX width must be 64, stride 256 => 0x00 << 28 */
6123 cntl
|= CURSOR_ENABLE
|
6124 CURSOR_GAMMA_ENABLE
|
6127 cntl
&= ~(CURSOR_ENABLE
| CURSOR_GAMMA_ENABLE
);
6128 I915_WRITE(_CURACNTR
, cntl
);
6130 intel_crtc
->cursor_visible
= visible
;
6133 static void i9xx_update_cursor(struct drm_crtc
*crtc
, u32 base
)
6135 struct drm_device
*dev
= crtc
->dev
;
6136 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6137 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6138 int pipe
= intel_crtc
->pipe
;
6139 bool visible
= base
!= 0;
6141 if (intel_crtc
->cursor_visible
!= visible
) {
6142 uint32_t cntl
= I915_READ(CURCNTR(pipe
));
6144 cntl
&= ~(CURSOR_MODE
| MCURSOR_PIPE_SELECT
);
6145 cntl
|= CURSOR_MODE_64_ARGB_AX
| MCURSOR_GAMMA_ENABLE
;
6146 cntl
|= pipe
<< 28; /* Connect to correct pipe */
6148 cntl
&= ~(CURSOR_MODE
| MCURSOR_GAMMA_ENABLE
);
6149 cntl
|= CURSOR_MODE_DISABLE
;
6151 I915_WRITE(CURCNTR(pipe
), cntl
);
6153 intel_crtc
->cursor_visible
= visible
;
6155 /* and commit changes on next vblank */
6156 I915_WRITE(CURBASE(pipe
), base
);
6159 static void ivb_update_cursor(struct drm_crtc
*crtc
, u32 base
)
6161 struct drm_device
*dev
= crtc
->dev
;
6162 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6163 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6164 int pipe
= intel_crtc
->pipe
;
6165 bool visible
= base
!= 0;
6167 if (intel_crtc
->cursor_visible
!= visible
) {
6168 uint32_t cntl
= I915_READ(CURCNTR_IVB(pipe
));
6170 cntl
&= ~CURSOR_MODE
;
6171 cntl
|= CURSOR_MODE_64_ARGB_AX
| MCURSOR_GAMMA_ENABLE
;
6173 cntl
&= ~(CURSOR_MODE
| MCURSOR_GAMMA_ENABLE
);
6174 cntl
|= CURSOR_MODE_DISABLE
;
6176 if (IS_HASWELL(dev
))
6177 cntl
|= CURSOR_PIPE_CSC_ENABLE
;
6178 I915_WRITE(CURCNTR_IVB(pipe
), cntl
);
6180 intel_crtc
->cursor_visible
= visible
;
6182 /* and commit changes on next vblank */
6183 I915_WRITE(CURBASE_IVB(pipe
), base
);
6186 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
6187 static void intel_crtc_update_cursor(struct drm_crtc
*crtc
,
6190 struct drm_device
*dev
= crtc
->dev
;
6191 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6192 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6193 int pipe
= intel_crtc
->pipe
;
6194 int x
= intel_crtc
->cursor_x
;
6195 int y
= intel_crtc
->cursor_y
;
6201 if (on
&& crtc
->enabled
&& crtc
->fb
) {
6202 base
= intel_crtc
->cursor_addr
;
6203 if (x
> (int) crtc
->fb
->width
)
6206 if (y
> (int) crtc
->fb
->height
)
6212 if (x
+ intel_crtc
->cursor_width
< 0)
6215 pos
|= CURSOR_POS_SIGN
<< CURSOR_X_SHIFT
;
6218 pos
|= x
<< CURSOR_X_SHIFT
;
6221 if (y
+ intel_crtc
->cursor_height
< 0)
6224 pos
|= CURSOR_POS_SIGN
<< CURSOR_Y_SHIFT
;
6227 pos
|= y
<< CURSOR_Y_SHIFT
;
6229 visible
= base
!= 0;
6230 if (!visible
&& !intel_crtc
->cursor_visible
)
6233 if (IS_IVYBRIDGE(dev
) || IS_HASWELL(dev
)) {
6234 I915_WRITE(CURPOS_IVB(pipe
), pos
);
6235 ivb_update_cursor(crtc
, base
);
6237 I915_WRITE(CURPOS(pipe
), pos
);
6238 if (IS_845G(dev
) || IS_I865G(dev
))
6239 i845_update_cursor(crtc
, base
);
6241 i9xx_update_cursor(crtc
, base
);
6245 static int intel_crtc_cursor_set(struct drm_crtc
*crtc
,
6246 struct drm_file
*file
,
6248 uint32_t width
, uint32_t height
)
6250 struct drm_device
*dev
= crtc
->dev
;
6251 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6252 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6253 struct drm_i915_gem_object
*obj
;
6257 /* if we want to turn off the cursor ignore width and height */
6259 DRM_DEBUG_KMS("cursor off\n");
6262 mutex_lock(&dev
->struct_mutex
);
6266 /* Currently we only support 64x64 cursors */
6267 if (width
!= 64 || height
!= 64) {
6268 DRM_ERROR("we currently only support 64x64 cursors\n");
6272 obj
= to_intel_bo(drm_gem_object_lookup(dev
, file
, handle
));
6273 if (&obj
->base
== NULL
)
6276 if (obj
->base
.size
< width
* height
* 4) {
6277 DRM_ERROR("buffer is to small\n");
6282 /* we only need to pin inside GTT if cursor is non-phy */
6283 mutex_lock(&dev
->struct_mutex
);
6284 if (!dev_priv
->info
->cursor_needs_physical
) {
6287 if (obj
->tiling_mode
) {
6288 DRM_ERROR("cursor cannot be tiled\n");
6293 /* Note that the w/a also requires 2 PTE of padding following
6294 * the bo. We currently fill all unused PTE with the shadow
6295 * page and so we should always have valid PTE following the
6296 * cursor preventing the VT-d warning.
6299 if (need_vtd_wa(dev
))
6300 alignment
= 64*1024;
6302 ret
= i915_gem_object_pin_to_display_plane(obj
, alignment
, NULL
);
6304 DRM_ERROR("failed to move cursor bo into the GTT\n");
6308 ret
= i915_gem_object_put_fence(obj
);
6310 DRM_ERROR("failed to release fence for cursor");
6314 addr
= obj
->gtt_offset
;
6316 int align
= IS_I830(dev
) ? 16 * 1024 : 256;
6317 ret
= i915_gem_attach_phys_object(dev
, obj
,
6318 (intel_crtc
->pipe
== 0) ? I915_GEM_PHYS_CURSOR_0
: I915_GEM_PHYS_CURSOR_1
,
6321 DRM_ERROR("failed to attach phys object\n");
6324 addr
= obj
->phys_obj
->handle
->busaddr
;
6328 I915_WRITE(CURSIZE
, (height
<< 12) | width
);
6331 if (intel_crtc
->cursor_bo
) {
6332 if (dev_priv
->info
->cursor_needs_physical
) {
6333 if (intel_crtc
->cursor_bo
!= obj
)
6334 i915_gem_detach_phys_object(dev
, intel_crtc
->cursor_bo
);
6336 i915_gem_object_unpin(intel_crtc
->cursor_bo
);
6337 drm_gem_object_unreference(&intel_crtc
->cursor_bo
->base
);
6340 mutex_unlock(&dev
->struct_mutex
);
6342 intel_crtc
->cursor_addr
= addr
;
6343 intel_crtc
->cursor_bo
= obj
;
6344 intel_crtc
->cursor_width
= width
;
6345 intel_crtc
->cursor_height
= height
;
6347 intel_crtc_update_cursor(crtc
, true);
6351 i915_gem_object_unpin(obj
);
6353 mutex_unlock(&dev
->struct_mutex
);
6355 drm_gem_object_unreference_unlocked(&obj
->base
);
6359 static int intel_crtc_cursor_move(struct drm_crtc
*crtc
, int x
, int y
)
6361 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6363 intel_crtc
->cursor_x
= x
;
6364 intel_crtc
->cursor_y
= y
;
6366 intel_crtc_update_cursor(crtc
, true);
6371 /** Sets the color ramps on behalf of RandR */
6372 void intel_crtc_fb_gamma_set(struct drm_crtc
*crtc
, u16 red
, u16 green
,
6373 u16 blue
, int regno
)
6375 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6377 intel_crtc
->lut_r
[regno
] = red
>> 8;
6378 intel_crtc
->lut_g
[regno
] = green
>> 8;
6379 intel_crtc
->lut_b
[regno
] = blue
>> 8;
6382 void intel_crtc_fb_gamma_get(struct drm_crtc
*crtc
, u16
*red
, u16
*green
,
6383 u16
*blue
, int regno
)
6385 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6387 *red
= intel_crtc
->lut_r
[regno
] << 8;
6388 *green
= intel_crtc
->lut_g
[regno
] << 8;
6389 *blue
= intel_crtc
->lut_b
[regno
] << 8;
6392 static void intel_crtc_gamma_set(struct drm_crtc
*crtc
, u16
*red
, u16
*green
,
6393 u16
*blue
, uint32_t start
, uint32_t size
)
6395 int end
= (start
+ size
> 256) ? 256 : start
+ size
, i
;
6396 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6398 for (i
= start
; i
< end
; i
++) {
6399 intel_crtc
->lut_r
[i
] = red
[i
] >> 8;
6400 intel_crtc
->lut_g
[i
] = green
[i
] >> 8;
6401 intel_crtc
->lut_b
[i
] = blue
[i
] >> 8;
6404 intel_crtc_load_lut(crtc
);
6407 /* VESA 640x480x72Hz mode to set on the pipe */
6408 static struct drm_display_mode load_detect_mode
= {
6409 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT
, 31500, 640, 664,
6410 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
6413 static struct drm_framebuffer
*
6414 intel_framebuffer_create(struct drm_device
*dev
,
6415 struct drm_mode_fb_cmd2
*mode_cmd
,
6416 struct drm_i915_gem_object
*obj
)
6418 struct intel_framebuffer
*intel_fb
;
6421 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
6423 drm_gem_object_unreference_unlocked(&obj
->base
);
6424 return ERR_PTR(-ENOMEM
);
6427 ret
= intel_framebuffer_init(dev
, intel_fb
, mode_cmd
, obj
);
6429 drm_gem_object_unreference_unlocked(&obj
->base
);
6431 return ERR_PTR(ret
);
6434 return &intel_fb
->base
;
6438 intel_framebuffer_pitch_for_width(int width
, int bpp
)
6440 u32 pitch
= DIV_ROUND_UP(width
* bpp
, 8);
6441 return ALIGN(pitch
, 64);
6445 intel_framebuffer_size_for_mode(struct drm_display_mode
*mode
, int bpp
)
6447 u32 pitch
= intel_framebuffer_pitch_for_width(mode
->hdisplay
, bpp
);
6448 return ALIGN(pitch
* mode
->vdisplay
, PAGE_SIZE
);
6451 static struct drm_framebuffer
*
6452 intel_framebuffer_create_for_mode(struct drm_device
*dev
,
6453 struct drm_display_mode
*mode
,
6456 struct drm_i915_gem_object
*obj
;
6457 struct drm_mode_fb_cmd2 mode_cmd
= { 0 };
6459 obj
= i915_gem_alloc_object(dev
,
6460 intel_framebuffer_size_for_mode(mode
, bpp
));
6462 return ERR_PTR(-ENOMEM
);
6464 mode_cmd
.width
= mode
->hdisplay
;
6465 mode_cmd
.height
= mode
->vdisplay
;
6466 mode_cmd
.pitches
[0] = intel_framebuffer_pitch_for_width(mode_cmd
.width
,
6468 mode_cmd
.pixel_format
= drm_mode_legacy_fb_format(bpp
, depth
);
6470 return intel_framebuffer_create(dev
, &mode_cmd
, obj
);
6473 static struct drm_framebuffer
*
6474 mode_fits_in_fbdev(struct drm_device
*dev
,
6475 struct drm_display_mode
*mode
)
6477 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6478 struct drm_i915_gem_object
*obj
;
6479 struct drm_framebuffer
*fb
;
6481 if (dev_priv
->fbdev
== NULL
)
6484 obj
= dev_priv
->fbdev
->ifb
.obj
;
6488 fb
= &dev_priv
->fbdev
->ifb
.base
;
6489 if (fb
->pitches
[0] < intel_framebuffer_pitch_for_width(mode
->hdisplay
,
6490 fb
->bits_per_pixel
))
6493 if (obj
->base
.size
< mode
->vdisplay
* fb
->pitches
[0])
6499 bool intel_get_load_detect_pipe(struct drm_connector
*connector
,
6500 struct drm_display_mode
*mode
,
6501 struct intel_load_detect_pipe
*old
)
6503 struct intel_crtc
*intel_crtc
;
6504 struct intel_encoder
*intel_encoder
=
6505 intel_attached_encoder(connector
);
6506 struct drm_crtc
*possible_crtc
;
6507 struct drm_encoder
*encoder
= &intel_encoder
->base
;
6508 struct drm_crtc
*crtc
= NULL
;
6509 struct drm_device
*dev
= encoder
->dev
;
6510 struct drm_framebuffer
*fb
;
6513 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
6514 connector
->base
.id
, drm_get_connector_name(connector
),
6515 encoder
->base
.id
, drm_get_encoder_name(encoder
));
6518 * Algorithm gets a little messy:
6520 * - if the connector already has an assigned crtc, use it (but make
6521 * sure it's on first)
6523 * - try to find the first unused crtc that can drive this connector,
6524 * and use that if we find one
6527 /* See if we already have a CRTC for this connector */
6528 if (encoder
->crtc
) {
6529 crtc
= encoder
->crtc
;
6531 mutex_lock(&crtc
->mutex
);
6533 old
->dpms_mode
= connector
->dpms
;
6534 old
->load_detect_temp
= false;
6536 /* Make sure the crtc and connector are running */
6537 if (connector
->dpms
!= DRM_MODE_DPMS_ON
)
6538 connector
->funcs
->dpms(connector
, DRM_MODE_DPMS_ON
);
6543 /* Find an unused one (if possible) */
6544 list_for_each_entry(possible_crtc
, &dev
->mode_config
.crtc_list
, head
) {
6546 if (!(encoder
->possible_crtcs
& (1 << i
)))
6548 if (!possible_crtc
->enabled
) {
6549 crtc
= possible_crtc
;
6555 * If we didn't find an unused CRTC, don't use any.
6558 DRM_DEBUG_KMS("no pipe available for load-detect\n");
6562 mutex_lock(&crtc
->mutex
);
6563 intel_encoder
->new_crtc
= to_intel_crtc(crtc
);
6564 to_intel_connector(connector
)->new_encoder
= intel_encoder
;
6566 intel_crtc
= to_intel_crtc(crtc
);
6567 old
->dpms_mode
= connector
->dpms
;
6568 old
->load_detect_temp
= true;
6569 old
->release_fb
= NULL
;
6572 mode
= &load_detect_mode
;
6574 /* We need a framebuffer large enough to accommodate all accesses
6575 * that the plane may generate whilst we perform load detection.
6576 * We can not rely on the fbcon either being present (we get called
6577 * during its initialisation to detect all boot displays, or it may
6578 * not even exist) or that it is large enough to satisfy the
6581 fb
= mode_fits_in_fbdev(dev
, mode
);
6583 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
6584 fb
= intel_framebuffer_create_for_mode(dev
, mode
, 24, 32);
6585 old
->release_fb
= fb
;
6587 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
6589 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
6590 mutex_unlock(&crtc
->mutex
);
6594 if (intel_set_mode(crtc
, mode
, 0, 0, fb
)) {
6595 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
6596 if (old
->release_fb
)
6597 old
->release_fb
->funcs
->destroy(old
->release_fb
);
6598 mutex_unlock(&crtc
->mutex
);
6602 /* let the connector get through one full cycle before testing */
6603 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
6607 void intel_release_load_detect_pipe(struct drm_connector
*connector
,
6608 struct intel_load_detect_pipe
*old
)
6610 struct intel_encoder
*intel_encoder
=
6611 intel_attached_encoder(connector
);
6612 struct drm_encoder
*encoder
= &intel_encoder
->base
;
6613 struct drm_crtc
*crtc
= encoder
->crtc
;
6615 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
6616 connector
->base
.id
, drm_get_connector_name(connector
),
6617 encoder
->base
.id
, drm_get_encoder_name(encoder
));
6619 if (old
->load_detect_temp
) {
6620 to_intel_connector(connector
)->new_encoder
= NULL
;
6621 intel_encoder
->new_crtc
= NULL
;
6622 intel_set_mode(crtc
, NULL
, 0, 0, NULL
);
6624 if (old
->release_fb
) {
6625 drm_framebuffer_unregister_private(old
->release_fb
);
6626 drm_framebuffer_unreference(old
->release_fb
);
6629 mutex_unlock(&crtc
->mutex
);
6633 /* Switch crtc and encoder back off if necessary */
6634 if (old
->dpms_mode
!= DRM_MODE_DPMS_ON
)
6635 connector
->funcs
->dpms(connector
, old
->dpms_mode
);
6637 mutex_unlock(&crtc
->mutex
);
6640 /* Returns the clock of the currently programmed mode of the given pipe. */
6641 static int intel_crtc_clock_get(struct drm_device
*dev
, struct drm_crtc
*crtc
)
6643 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6644 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6645 int pipe
= intel_crtc
->pipe
;
6646 u32 dpll
= I915_READ(DPLL(pipe
));
6648 intel_clock_t clock
;
6650 if ((dpll
& DISPLAY_RATE_SELECT_FPA1
) == 0)
6651 fp
= I915_READ(FP0(pipe
));
6653 fp
= I915_READ(FP1(pipe
));
6655 clock
.m1
= (fp
& FP_M1_DIV_MASK
) >> FP_M1_DIV_SHIFT
;
6656 if (IS_PINEVIEW(dev
)) {
6657 clock
.n
= ffs((fp
& FP_N_PINEVIEW_DIV_MASK
) >> FP_N_DIV_SHIFT
) - 1;
6658 clock
.m2
= (fp
& FP_M2_PINEVIEW_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
6660 clock
.n
= (fp
& FP_N_DIV_MASK
) >> FP_N_DIV_SHIFT
;
6661 clock
.m2
= (fp
& FP_M2_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
6664 if (!IS_GEN2(dev
)) {
6665 if (IS_PINEVIEW(dev
))
6666 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW
) >>
6667 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
);
6669 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK
) >>
6670 DPLL_FPA01_P1_POST_DIV_SHIFT
);
6672 switch (dpll
& DPLL_MODE_MASK
) {
6673 case DPLLB_MODE_DAC_SERIAL
:
6674 clock
.p2
= dpll
& DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
?
6677 case DPLLB_MODE_LVDS
:
6678 clock
.p2
= dpll
& DPLLB_LVDS_P2_CLOCK_DIV_7
?
6682 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
6683 "mode\n", (int)(dpll
& DPLL_MODE_MASK
));
6687 /* XXX: Handle the 100Mhz refclk */
6688 intel_clock(dev
, 96000, &clock
);
6690 bool is_lvds
= (pipe
== 1) && (I915_READ(LVDS
) & LVDS_PORT_EN
);
6693 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS
) >>
6694 DPLL_FPA01_P1_POST_DIV_SHIFT
);
6697 if ((dpll
& PLL_REF_INPUT_MASK
) ==
6698 PLLB_REF_INPUT_SPREADSPECTRUMIN
) {
6699 /* XXX: might not be 66MHz */
6700 intel_clock(dev
, 66000, &clock
);
6702 intel_clock(dev
, 48000, &clock
);
6704 if (dpll
& PLL_P1_DIVIDE_BY_TWO
)
6707 clock
.p1
= ((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830
) >>
6708 DPLL_FPA01_P1_POST_DIV_SHIFT
) + 2;
6710 if (dpll
& PLL_P2_DIVIDE_BY_4
)
6715 intel_clock(dev
, 48000, &clock
);
6719 /* XXX: It would be nice to validate the clocks, but we can't reuse
6720 * i830PllIsValid() because it relies on the xf86_config connector
6721 * configuration being accurate, which it isn't necessarily.
6727 /** Returns the currently programmed mode of the given pipe. */
6728 struct drm_display_mode
*intel_crtc_mode_get(struct drm_device
*dev
,
6729 struct drm_crtc
*crtc
)
6731 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6732 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6733 enum transcoder cpu_transcoder
= intel_crtc
->cpu_transcoder
;
6734 struct drm_display_mode
*mode
;
6735 int htot
= I915_READ(HTOTAL(cpu_transcoder
));
6736 int hsync
= I915_READ(HSYNC(cpu_transcoder
));
6737 int vtot
= I915_READ(VTOTAL(cpu_transcoder
));
6738 int vsync
= I915_READ(VSYNC(cpu_transcoder
));
6740 mode
= kzalloc(sizeof(*mode
), GFP_KERNEL
);
6744 mode
->clock
= intel_crtc_clock_get(dev
, crtc
);
6745 mode
->hdisplay
= (htot
& 0xffff) + 1;
6746 mode
->htotal
= ((htot
& 0xffff0000) >> 16) + 1;
6747 mode
->hsync_start
= (hsync
& 0xffff) + 1;
6748 mode
->hsync_end
= ((hsync
& 0xffff0000) >> 16) + 1;
6749 mode
->vdisplay
= (vtot
& 0xffff) + 1;
6750 mode
->vtotal
= ((vtot
& 0xffff0000) >> 16) + 1;
6751 mode
->vsync_start
= (vsync
& 0xffff) + 1;
6752 mode
->vsync_end
= ((vsync
& 0xffff0000) >> 16) + 1;
6754 drm_mode_set_name(mode
);
6759 static void intel_increase_pllclock(struct drm_crtc
*crtc
)
6761 struct drm_device
*dev
= crtc
->dev
;
6762 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
6763 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6764 int pipe
= intel_crtc
->pipe
;
6765 int dpll_reg
= DPLL(pipe
);
6768 if (HAS_PCH_SPLIT(dev
))
6771 if (!dev_priv
->lvds_downclock_avail
)
6774 dpll
= I915_READ(dpll_reg
);
6775 if (!HAS_PIPE_CXSR(dev
) && (dpll
& DISPLAY_RATE_SELECT_FPA1
)) {
6776 DRM_DEBUG_DRIVER("upclocking LVDS\n");
6778 assert_panel_unlocked(dev_priv
, pipe
);
6780 dpll
&= ~DISPLAY_RATE_SELECT_FPA1
;
6781 I915_WRITE(dpll_reg
, dpll
);
6782 intel_wait_for_vblank(dev
, pipe
);
6784 dpll
= I915_READ(dpll_reg
);
6785 if (dpll
& DISPLAY_RATE_SELECT_FPA1
)
6786 DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
6790 static void intel_decrease_pllclock(struct drm_crtc
*crtc
)
6792 struct drm_device
*dev
= crtc
->dev
;
6793 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
6794 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6796 if (HAS_PCH_SPLIT(dev
))
6799 if (!dev_priv
->lvds_downclock_avail
)
6803 * Since this is called by a timer, we should never get here in
6806 if (!HAS_PIPE_CXSR(dev
) && intel_crtc
->lowfreq_avail
) {
6807 int pipe
= intel_crtc
->pipe
;
6808 int dpll_reg
= DPLL(pipe
);
6811 DRM_DEBUG_DRIVER("downclocking LVDS\n");
6813 assert_panel_unlocked(dev_priv
, pipe
);
6815 dpll
= I915_READ(dpll_reg
);
6816 dpll
|= DISPLAY_RATE_SELECT_FPA1
;
6817 I915_WRITE(dpll_reg
, dpll
);
6818 intel_wait_for_vblank(dev
, pipe
);
6819 dpll
= I915_READ(dpll_reg
);
6820 if (!(dpll
& DISPLAY_RATE_SELECT_FPA1
))
6821 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
6826 void intel_mark_busy(struct drm_device
*dev
)
6828 i915_update_gfx_val(dev
->dev_private
);
6831 void intel_mark_idle(struct drm_device
*dev
)
6833 struct drm_crtc
*crtc
;
6835 if (!i915_powersave
)
6838 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
6842 intel_decrease_pllclock(crtc
);
6846 void intel_mark_fb_busy(struct drm_i915_gem_object
*obj
)
6848 struct drm_device
*dev
= obj
->base
.dev
;
6849 struct drm_crtc
*crtc
;
6851 if (!i915_powersave
)
6854 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
6858 if (to_intel_framebuffer(crtc
->fb
)->obj
== obj
)
6859 intel_increase_pllclock(crtc
);
6863 static void intel_crtc_destroy(struct drm_crtc
*crtc
)
6865 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6866 struct drm_device
*dev
= crtc
->dev
;
6867 struct intel_unpin_work
*work
;
6868 unsigned long flags
;
6870 spin_lock_irqsave(&dev
->event_lock
, flags
);
6871 work
= intel_crtc
->unpin_work
;
6872 intel_crtc
->unpin_work
= NULL
;
6873 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
6876 cancel_work_sync(&work
->work
);
6880 drm_crtc_cleanup(crtc
);
6885 static void intel_unpin_work_fn(struct work_struct
*__work
)
6887 struct intel_unpin_work
*work
=
6888 container_of(__work
, struct intel_unpin_work
, work
);
6889 struct drm_device
*dev
= work
->crtc
->dev
;
6891 mutex_lock(&dev
->struct_mutex
);
6892 intel_unpin_fb_obj(work
->old_fb_obj
);
6893 drm_gem_object_unreference(&work
->pending_flip_obj
->base
);
6894 drm_gem_object_unreference(&work
->old_fb_obj
->base
);
6896 intel_update_fbc(dev
);
6897 mutex_unlock(&dev
->struct_mutex
);
6899 BUG_ON(atomic_read(&to_intel_crtc(work
->crtc
)->unpin_work_count
) == 0);
6900 atomic_dec(&to_intel_crtc(work
->crtc
)->unpin_work_count
);
6905 static void do_intel_finish_page_flip(struct drm_device
*dev
,
6906 struct drm_crtc
*crtc
)
6908 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
6909 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6910 struct intel_unpin_work
*work
;
6911 unsigned long flags
;
6913 /* Ignore early vblank irqs */
6914 if (intel_crtc
== NULL
)
6917 spin_lock_irqsave(&dev
->event_lock
, flags
);
6918 work
= intel_crtc
->unpin_work
;
6920 /* Ensure we don't miss a work->pending update ... */
6923 if (work
== NULL
|| atomic_read(&work
->pending
) < INTEL_FLIP_COMPLETE
) {
6924 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
6928 /* and that the unpin work is consistent wrt ->pending. */
6931 intel_crtc
->unpin_work
= NULL
;
6934 drm_send_vblank_event(dev
, intel_crtc
->pipe
, work
->event
);
6936 drm_vblank_put(dev
, intel_crtc
->pipe
);
6938 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
6940 wake_up_all(&dev_priv
->pending_flip_queue
);
6942 queue_work(dev_priv
->wq
, &work
->work
);
6944 trace_i915_flip_complete(intel_crtc
->plane
, work
->pending_flip_obj
);
6947 void intel_finish_page_flip(struct drm_device
*dev
, int pipe
)
6949 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
6950 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
6952 do_intel_finish_page_flip(dev
, crtc
);
6955 void intel_finish_page_flip_plane(struct drm_device
*dev
, int plane
)
6957 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
6958 struct drm_crtc
*crtc
= dev_priv
->plane_to_crtc_mapping
[plane
];
6960 do_intel_finish_page_flip(dev
, crtc
);
6963 void intel_prepare_page_flip(struct drm_device
*dev
, int plane
)
6965 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
6966 struct intel_crtc
*intel_crtc
=
6967 to_intel_crtc(dev_priv
->plane_to_crtc_mapping
[plane
]);
6968 unsigned long flags
;
6970 /* NB: An MMIO update of the plane base pointer will also
6971 * generate a page-flip completion irq, i.e. every modeset
6972 * is also accompanied by a spurious intel_prepare_page_flip().
6974 spin_lock_irqsave(&dev
->event_lock
, flags
);
6975 if (intel_crtc
->unpin_work
)
6976 atomic_inc_not_zero(&intel_crtc
->unpin_work
->pending
);
6977 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
6980 inline static void intel_mark_page_flip_active(struct intel_crtc
*intel_crtc
)
6982 /* Ensure that the work item is consistent when activating it ... */
6984 atomic_set(&intel_crtc
->unpin_work
->pending
, INTEL_FLIP_PENDING
);
6985 /* and that it is marked active as soon as the irq could fire. */
6989 static int intel_gen2_queue_flip(struct drm_device
*dev
,
6990 struct drm_crtc
*crtc
,
6991 struct drm_framebuffer
*fb
,
6992 struct drm_i915_gem_object
*obj
)
6994 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6995 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6997 struct intel_ring_buffer
*ring
= &dev_priv
->ring
[RCS
];
7000 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
7004 ret
= intel_ring_begin(ring
, 6);
7008 /* Can't queue multiple flips, so wait for the previous
7009 * one to finish before executing the next.
7011 if (intel_crtc
->plane
)
7012 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
7014 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
7015 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
7016 intel_ring_emit(ring
, MI_NOOP
);
7017 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
7018 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
7019 intel_ring_emit(ring
, fb
->pitches
[0]);
7020 intel_ring_emit(ring
, obj
->gtt_offset
+ intel_crtc
->dspaddr_offset
);
7021 intel_ring_emit(ring
, 0); /* aux display base address, unused */
7023 intel_mark_page_flip_active(intel_crtc
);
7024 intel_ring_advance(ring
);
7028 intel_unpin_fb_obj(obj
);
7033 static int intel_gen3_queue_flip(struct drm_device
*dev
,
7034 struct drm_crtc
*crtc
,
7035 struct drm_framebuffer
*fb
,
7036 struct drm_i915_gem_object
*obj
)
7038 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7039 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7041 struct intel_ring_buffer
*ring
= &dev_priv
->ring
[RCS
];
7044 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
7048 ret
= intel_ring_begin(ring
, 6);
7052 if (intel_crtc
->plane
)
7053 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
7055 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
7056 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
7057 intel_ring_emit(ring
, MI_NOOP
);
7058 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
|
7059 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
7060 intel_ring_emit(ring
, fb
->pitches
[0]);
7061 intel_ring_emit(ring
, obj
->gtt_offset
+ intel_crtc
->dspaddr_offset
);
7062 intel_ring_emit(ring
, MI_NOOP
);
7064 intel_mark_page_flip_active(intel_crtc
);
7065 intel_ring_advance(ring
);
7069 intel_unpin_fb_obj(obj
);
7074 static int intel_gen4_queue_flip(struct drm_device
*dev
,
7075 struct drm_crtc
*crtc
,
7076 struct drm_framebuffer
*fb
,
7077 struct drm_i915_gem_object
*obj
)
7079 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7080 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7081 uint32_t pf
, pipesrc
;
7082 struct intel_ring_buffer
*ring
= &dev_priv
->ring
[RCS
];
7085 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
7089 ret
= intel_ring_begin(ring
, 4);
7093 /* i965+ uses the linear or tiled offsets from the
7094 * Display Registers (which do not change across a page-flip)
7095 * so we need only reprogram the base address.
7097 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
7098 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
7099 intel_ring_emit(ring
, fb
->pitches
[0]);
7100 intel_ring_emit(ring
,
7101 (obj
->gtt_offset
+ intel_crtc
->dspaddr_offset
) |
7104 /* XXX Enabling the panel-fitter across page-flip is so far
7105 * untested on non-native modes, so ignore it for now.
7106 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
7109 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
7110 intel_ring_emit(ring
, pf
| pipesrc
);
7112 intel_mark_page_flip_active(intel_crtc
);
7113 intel_ring_advance(ring
);
7117 intel_unpin_fb_obj(obj
);
7122 static int intel_gen6_queue_flip(struct drm_device
*dev
,
7123 struct drm_crtc
*crtc
,
7124 struct drm_framebuffer
*fb
,
7125 struct drm_i915_gem_object
*obj
)
7127 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7128 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7129 struct intel_ring_buffer
*ring
= &dev_priv
->ring
[RCS
];
7130 uint32_t pf
, pipesrc
;
7133 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
7137 ret
= intel_ring_begin(ring
, 4);
7141 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
7142 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
7143 intel_ring_emit(ring
, fb
->pitches
[0] | obj
->tiling_mode
);
7144 intel_ring_emit(ring
, obj
->gtt_offset
+ intel_crtc
->dspaddr_offset
);
7146 /* Contrary to the suggestions in the documentation,
7147 * "Enable Panel Fitter" does not seem to be required when page
7148 * flipping with a non-native mode, and worse causes a normal
7150 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
7153 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
7154 intel_ring_emit(ring
, pf
| pipesrc
);
7156 intel_mark_page_flip_active(intel_crtc
);
7157 intel_ring_advance(ring
);
7161 intel_unpin_fb_obj(obj
);
7167 * On gen7 we currently use the blit ring because (in early silicon at least)
7168 * the render ring doesn't give us interrpts for page flip completion, which
7169 * means clients will hang after the first flip is queued. Fortunately the
7170 * blit ring generates interrupts properly, so use it instead.
7172 static int intel_gen7_queue_flip(struct drm_device
*dev
,
7173 struct drm_crtc
*crtc
,
7174 struct drm_framebuffer
*fb
,
7175 struct drm_i915_gem_object
*obj
)
7177 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7178 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7179 struct intel_ring_buffer
*ring
= &dev_priv
->ring
[BCS
];
7180 uint32_t plane_bit
= 0;
7183 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
7187 switch(intel_crtc
->plane
) {
7189 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_A
;
7192 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_B
;
7195 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_C
;
7198 WARN_ONCE(1, "unknown plane in flip command\n");
7203 ret
= intel_ring_begin(ring
, 4);
7207 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
| plane_bit
);
7208 intel_ring_emit(ring
, (fb
->pitches
[0] | obj
->tiling_mode
));
7209 intel_ring_emit(ring
, obj
->gtt_offset
+ intel_crtc
->dspaddr_offset
);
7210 intel_ring_emit(ring
, (MI_NOOP
));
7212 intel_mark_page_flip_active(intel_crtc
);
7213 intel_ring_advance(ring
);
7217 intel_unpin_fb_obj(obj
);
7222 static int intel_default_queue_flip(struct drm_device
*dev
,
7223 struct drm_crtc
*crtc
,
7224 struct drm_framebuffer
*fb
,
7225 struct drm_i915_gem_object
*obj
)
7230 static int intel_crtc_page_flip(struct drm_crtc
*crtc
,
7231 struct drm_framebuffer
*fb
,
7232 struct drm_pending_vblank_event
*event
)
7234 struct drm_device
*dev
= crtc
->dev
;
7235 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7236 struct drm_framebuffer
*old_fb
= crtc
->fb
;
7237 struct drm_i915_gem_object
*obj
= to_intel_framebuffer(fb
)->obj
;
7238 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
7239 struct intel_unpin_work
*work
;
7240 unsigned long flags
;
7243 /* Can't change pixel format via MI display flips. */
7244 if (fb
->pixel_format
!= crtc
->fb
->pixel_format
)
7248 * TILEOFF/LINOFF registers can't be changed via MI display flips.
7249 * Note that pitch changes could also affect these register.
7251 if (INTEL_INFO(dev
)->gen
> 3 &&
7252 (fb
->offsets
[0] != crtc
->fb
->offsets
[0] ||
7253 fb
->pitches
[0] != crtc
->fb
->pitches
[0]))
7256 work
= kzalloc(sizeof *work
, GFP_KERNEL
);
7260 work
->event
= event
;
7262 work
->old_fb_obj
= to_intel_framebuffer(old_fb
)->obj
;
7263 INIT_WORK(&work
->work
, intel_unpin_work_fn
);
7265 ret
= drm_vblank_get(dev
, intel_crtc
->pipe
);
7269 /* We borrow the event spin lock for protecting unpin_work */
7270 spin_lock_irqsave(&dev
->event_lock
, flags
);
7271 if (intel_crtc
->unpin_work
) {
7272 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
7274 drm_vblank_put(dev
, intel_crtc
->pipe
);
7276 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
7279 intel_crtc
->unpin_work
= work
;
7280 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
7282 if (atomic_read(&intel_crtc
->unpin_work_count
) >= 2)
7283 flush_workqueue(dev_priv
->wq
);
7285 ret
= i915_mutex_lock_interruptible(dev
);
7289 /* Reference the objects for the scheduled work. */
7290 drm_gem_object_reference(&work
->old_fb_obj
->base
);
7291 drm_gem_object_reference(&obj
->base
);
7295 work
->pending_flip_obj
= obj
;
7297 work
->enable_stall_check
= true;
7299 atomic_inc(&intel_crtc
->unpin_work_count
);
7300 intel_crtc
->reset_counter
= atomic_read(&dev_priv
->gpu_error
.reset_counter
);
7302 ret
= dev_priv
->display
.queue_flip(dev
, crtc
, fb
, obj
);
7304 goto cleanup_pending
;
7306 intel_disable_fbc(dev
);
7307 intel_mark_fb_busy(obj
);
7308 mutex_unlock(&dev
->struct_mutex
);
7310 trace_i915_flip_request(intel_crtc
->plane
, obj
);
7315 atomic_dec(&intel_crtc
->unpin_work_count
);
7317 drm_gem_object_unreference(&work
->old_fb_obj
->base
);
7318 drm_gem_object_unreference(&obj
->base
);
7319 mutex_unlock(&dev
->struct_mutex
);
7322 spin_lock_irqsave(&dev
->event_lock
, flags
);
7323 intel_crtc
->unpin_work
= NULL
;
7324 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
7326 drm_vblank_put(dev
, intel_crtc
->pipe
);
7333 static struct drm_crtc_helper_funcs intel_helper_funcs
= {
7334 .mode_set_base_atomic
= intel_pipe_set_base_atomic
,
7335 .load_lut
= intel_crtc_load_lut
,
7338 bool intel_encoder_check_is_cloned(struct intel_encoder
*encoder
)
7340 struct intel_encoder
*other_encoder
;
7341 struct drm_crtc
*crtc
= &encoder
->new_crtc
->base
;
7346 list_for_each_entry(other_encoder
,
7347 &crtc
->dev
->mode_config
.encoder_list
,
7350 if (&other_encoder
->new_crtc
->base
!= crtc
||
7351 encoder
== other_encoder
)
7360 static bool intel_encoder_crtc_ok(struct drm_encoder
*encoder
,
7361 struct drm_crtc
*crtc
)
7363 struct drm_device
*dev
;
7364 struct drm_crtc
*tmp
;
7367 WARN(!crtc
, "checking null crtc?\n");
7371 list_for_each_entry(tmp
, &dev
->mode_config
.crtc_list
, head
) {
7377 if (encoder
->possible_crtcs
& crtc_mask
)
7383 * intel_modeset_update_staged_output_state
7385 * Updates the staged output configuration state, e.g. after we've read out the
7388 static void intel_modeset_update_staged_output_state(struct drm_device
*dev
)
7390 struct intel_encoder
*encoder
;
7391 struct intel_connector
*connector
;
7393 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
7395 connector
->new_encoder
=
7396 to_intel_encoder(connector
->base
.encoder
);
7399 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
7402 to_intel_crtc(encoder
->base
.crtc
);
7407 * intel_modeset_commit_output_state
7409 * This function copies the stage display pipe configuration to the real one.
7411 static void intel_modeset_commit_output_state(struct drm_device
*dev
)
7413 struct intel_encoder
*encoder
;
7414 struct intel_connector
*connector
;
7416 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
7418 connector
->base
.encoder
= &connector
->new_encoder
->base
;
7421 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
7423 encoder
->base
.crtc
= &encoder
->new_crtc
->base
;
7428 pipe_config_set_bpp(struct drm_crtc
*crtc
,
7429 struct drm_framebuffer
*fb
,
7430 struct intel_crtc_config
*pipe_config
)
7432 struct drm_device
*dev
= crtc
->dev
;
7433 struct drm_connector
*connector
;
7436 switch (fb
->pixel_format
) {
7438 bpp
= 8*3; /* since we go through a colormap */
7440 case DRM_FORMAT_XRGB1555
:
7441 case DRM_FORMAT_ARGB1555
:
7442 /* checked in intel_framebuffer_init already */
7443 if (WARN_ON(INTEL_INFO(dev
)->gen
> 3))
7445 case DRM_FORMAT_RGB565
:
7446 bpp
= 6*3; /* min is 18bpp */
7448 case DRM_FORMAT_XBGR8888
:
7449 case DRM_FORMAT_ABGR8888
:
7450 /* checked in intel_framebuffer_init already */
7451 if (WARN_ON(INTEL_INFO(dev
)->gen
< 4))
7453 case DRM_FORMAT_XRGB8888
:
7454 case DRM_FORMAT_ARGB8888
:
7457 case DRM_FORMAT_XRGB2101010
:
7458 case DRM_FORMAT_ARGB2101010
:
7459 case DRM_FORMAT_XBGR2101010
:
7460 case DRM_FORMAT_ABGR2101010
:
7461 /* checked in intel_framebuffer_init already */
7462 if (WARN_ON(INTEL_INFO(dev
)->gen
< 4))
7466 /* TODO: gen4+ supports 16 bpc floating point, too. */
7468 DRM_DEBUG_KMS("unsupported depth\n");
7472 pipe_config
->pipe_bpp
= bpp
;
7474 /* Clamp display bpp to EDID value */
7475 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
7477 if (connector
->encoder
&& connector
->encoder
->crtc
!= crtc
)
7480 /* Don't use an invalid EDID bpc value */
7481 if (connector
->display_info
.bpc
&&
7482 connector
->display_info
.bpc
* 3 < bpp
) {
7483 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
7484 bpp
, connector
->display_info
.bpc
*3);
7485 pipe_config
->pipe_bpp
= connector
->display_info
.bpc
*3;
7492 static struct intel_crtc_config
*
7493 intel_modeset_pipe_config(struct drm_crtc
*crtc
,
7494 struct drm_framebuffer
*fb
,
7495 struct drm_display_mode
*mode
)
7497 struct drm_device
*dev
= crtc
->dev
;
7498 struct drm_encoder_helper_funcs
*encoder_funcs
;
7499 struct intel_encoder
*encoder
;
7500 struct intel_crtc_config
*pipe_config
;
7503 pipe_config
= kzalloc(sizeof(*pipe_config
), GFP_KERNEL
);
7505 return ERR_PTR(-ENOMEM
);
7507 drm_mode_copy(&pipe_config
->adjusted_mode
, mode
);
7508 drm_mode_copy(&pipe_config
->requested_mode
, mode
);
7510 plane_bpp
= pipe_config_set_bpp(crtc
, fb
, pipe_config
);
7514 /* Pass our mode to the connectors and the CRTC to give them a chance to
7515 * adjust it according to limitations or connector properties, and also
7516 * a chance to reject the mode entirely.
7518 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
7521 if (&encoder
->new_crtc
->base
!= crtc
)
7524 if (encoder
->compute_config
) {
7525 if (!(encoder
->compute_config(encoder
, pipe_config
))) {
7526 DRM_DEBUG_KMS("Encoder config failure\n");
7533 encoder_funcs
= encoder
->base
.helper_private
;
7534 if (!(encoder_funcs
->mode_fixup(&encoder
->base
,
7535 &pipe_config
->requested_mode
,
7536 &pipe_config
->adjusted_mode
))) {
7537 DRM_DEBUG_KMS("Encoder fixup failed\n");
7542 if (!(intel_crtc_compute_config(crtc
, pipe_config
))) {
7543 DRM_DEBUG_KMS("CRTC fixup failed\n");
7546 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc
->base
.id
);
7548 pipe_config
->dither
= pipe_config
->pipe_bpp
!= plane_bpp
;
7549 DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n",
7550 plane_bpp
, pipe_config
->pipe_bpp
, pipe_config
->dither
);
7555 return ERR_PTR(-EINVAL
);
7558 /* Computes which crtcs are affected and sets the relevant bits in the mask. For
7559 * simplicity we use the crtc's pipe number (because it's easier to obtain). */
7561 intel_modeset_affected_pipes(struct drm_crtc
*crtc
, unsigned *modeset_pipes
,
7562 unsigned *prepare_pipes
, unsigned *disable_pipes
)
7564 struct intel_crtc
*intel_crtc
;
7565 struct drm_device
*dev
= crtc
->dev
;
7566 struct intel_encoder
*encoder
;
7567 struct intel_connector
*connector
;
7568 struct drm_crtc
*tmp_crtc
;
7570 *disable_pipes
= *modeset_pipes
= *prepare_pipes
= 0;
7572 /* Check which crtcs have changed outputs connected to them, these need
7573 * to be part of the prepare_pipes mask. We don't (yet) support global
7574 * modeset across multiple crtcs, so modeset_pipes will only have one
7575 * bit set at most. */
7576 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
7578 if (connector
->base
.encoder
== &connector
->new_encoder
->base
)
7581 if (connector
->base
.encoder
) {
7582 tmp_crtc
= connector
->base
.encoder
->crtc
;
7584 *prepare_pipes
|= 1 << to_intel_crtc(tmp_crtc
)->pipe
;
7587 if (connector
->new_encoder
)
7589 1 << connector
->new_encoder
->new_crtc
->pipe
;
7592 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
7594 if (encoder
->base
.crtc
== &encoder
->new_crtc
->base
)
7597 if (encoder
->base
.crtc
) {
7598 tmp_crtc
= encoder
->base
.crtc
;
7600 *prepare_pipes
|= 1 << to_intel_crtc(tmp_crtc
)->pipe
;
7603 if (encoder
->new_crtc
)
7604 *prepare_pipes
|= 1 << encoder
->new_crtc
->pipe
;
7607 /* Check for any pipes that will be fully disabled ... */
7608 list_for_each_entry(intel_crtc
, &dev
->mode_config
.crtc_list
,
7612 /* Don't try to disable disabled crtcs. */
7613 if (!intel_crtc
->base
.enabled
)
7616 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
7618 if (encoder
->new_crtc
== intel_crtc
)
7623 *disable_pipes
|= 1 << intel_crtc
->pipe
;
7627 /* set_mode is also used to update properties on life display pipes. */
7628 intel_crtc
= to_intel_crtc(crtc
);
7630 *prepare_pipes
|= 1 << intel_crtc
->pipe
;
7632 /* We only support modeset on one single crtc, hence we need to do that
7633 * only for the passed in crtc iff we change anything else than just
7636 * This is actually not true, to be fully compatible with the old crtc
7637 * helper we automatically disable _any_ output (i.e. doesn't need to be
7638 * connected to the crtc we're modesetting on) if it's disconnected.
7639 * Which is a rather nutty api (since changed the output configuration
7640 * without userspace's explicit request can lead to confusion), but
7641 * alas. Hence we currently need to modeset on all pipes we prepare. */
7643 *modeset_pipes
= *prepare_pipes
;
7645 /* ... and mask these out. */
7646 *modeset_pipes
&= ~(*disable_pipes
);
7647 *prepare_pipes
&= ~(*disable_pipes
);
7650 static bool intel_crtc_in_use(struct drm_crtc
*crtc
)
7652 struct drm_encoder
*encoder
;
7653 struct drm_device
*dev
= crtc
->dev
;
7655 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
)
7656 if (encoder
->crtc
== crtc
)
7663 intel_modeset_update_state(struct drm_device
*dev
, unsigned prepare_pipes
)
7665 struct intel_encoder
*intel_encoder
;
7666 struct intel_crtc
*intel_crtc
;
7667 struct drm_connector
*connector
;
7669 list_for_each_entry(intel_encoder
, &dev
->mode_config
.encoder_list
,
7671 if (!intel_encoder
->base
.crtc
)
7674 intel_crtc
= to_intel_crtc(intel_encoder
->base
.crtc
);
7676 if (prepare_pipes
& (1 << intel_crtc
->pipe
))
7677 intel_encoder
->connectors_active
= false;
7680 intel_modeset_commit_output_state(dev
);
7682 /* Update computed state. */
7683 list_for_each_entry(intel_crtc
, &dev
->mode_config
.crtc_list
,
7685 intel_crtc
->base
.enabled
= intel_crtc_in_use(&intel_crtc
->base
);
7688 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
7689 if (!connector
->encoder
|| !connector
->encoder
->crtc
)
7692 intel_crtc
= to_intel_crtc(connector
->encoder
->crtc
);
7694 if (prepare_pipes
& (1 << intel_crtc
->pipe
)) {
7695 struct drm_property
*dpms_property
=
7696 dev
->mode_config
.dpms_property
;
7698 connector
->dpms
= DRM_MODE_DPMS_ON
;
7699 drm_object_property_set_value(&connector
->base
,
7703 intel_encoder
= to_intel_encoder(connector
->encoder
);
7704 intel_encoder
->connectors_active
= true;
7710 #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
7711 list_for_each_entry((intel_crtc), \
7712 &(dev)->mode_config.crtc_list, \
7714 if (mask & (1 <<(intel_crtc)->pipe)) \
7717 intel_modeset_check_state(struct drm_device
*dev
)
7719 struct intel_crtc
*crtc
;
7720 struct intel_encoder
*encoder
;
7721 struct intel_connector
*connector
;
7723 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
7725 /* This also checks the encoder/connector hw state with the
7726 * ->get_hw_state callbacks. */
7727 intel_connector_check_state(connector
);
7729 WARN(&connector
->new_encoder
->base
!= connector
->base
.encoder
,
7730 "connector's staged encoder doesn't match current encoder\n");
7733 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
7735 bool enabled
= false;
7736 bool active
= false;
7737 enum pipe pipe
, tracked_pipe
;
7739 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
7740 encoder
->base
.base
.id
,
7741 drm_get_encoder_name(&encoder
->base
));
7743 WARN(&encoder
->new_crtc
->base
!= encoder
->base
.crtc
,
7744 "encoder's stage crtc doesn't match current crtc\n");
7745 WARN(encoder
->connectors_active
&& !encoder
->base
.crtc
,
7746 "encoder's active_connectors set, but no crtc\n");
7748 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
7750 if (connector
->base
.encoder
!= &encoder
->base
)
7753 if (connector
->base
.dpms
!= DRM_MODE_DPMS_OFF
)
7756 WARN(!!encoder
->base
.crtc
!= enabled
,
7757 "encoder's enabled state mismatch "
7758 "(expected %i, found %i)\n",
7759 !!encoder
->base
.crtc
, enabled
);
7760 WARN(active
&& !encoder
->base
.crtc
,
7761 "active encoder with no crtc\n");
7763 WARN(encoder
->connectors_active
!= active
,
7764 "encoder's computed active state doesn't match tracked active state "
7765 "(expected %i, found %i)\n", active
, encoder
->connectors_active
);
7767 active
= encoder
->get_hw_state(encoder
, &pipe
);
7768 WARN(active
!= encoder
->connectors_active
,
7769 "encoder's hw state doesn't match sw tracking "
7770 "(expected %i, found %i)\n",
7771 encoder
->connectors_active
, active
);
7773 if (!encoder
->base
.crtc
)
7776 tracked_pipe
= to_intel_crtc(encoder
->base
.crtc
)->pipe
;
7777 WARN(active
&& pipe
!= tracked_pipe
,
7778 "active encoder's pipe doesn't match"
7779 "(expected %i, found %i)\n",
7780 tracked_pipe
, pipe
);
7784 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
,
7786 bool enabled
= false;
7787 bool active
= false;
7789 DRM_DEBUG_KMS("[CRTC:%d]\n",
7790 crtc
->base
.base
.id
);
7792 WARN(crtc
->active
&& !crtc
->base
.enabled
,
7793 "active crtc, but not enabled in sw tracking\n");
7795 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
7797 if (encoder
->base
.crtc
!= &crtc
->base
)
7800 if (encoder
->connectors_active
)
7803 WARN(active
!= crtc
->active
,
7804 "crtc's computed active state doesn't match tracked active state "
7805 "(expected %i, found %i)\n", active
, crtc
->active
);
7806 WARN(enabled
!= crtc
->base
.enabled
,
7807 "crtc's computed enabled state doesn't match tracked enabled state "
7808 "(expected %i, found %i)\n", enabled
, crtc
->base
.enabled
);
7810 assert_pipe(dev
->dev_private
, crtc
->pipe
, crtc
->active
);
7814 int intel_set_mode(struct drm_crtc
*crtc
,
7815 struct drm_display_mode
*mode
,
7816 int x
, int y
, struct drm_framebuffer
*fb
)
7818 struct drm_device
*dev
= crtc
->dev
;
7819 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
7820 struct drm_display_mode
*saved_mode
, *saved_hwmode
;
7821 struct intel_crtc_config
*pipe_config
= NULL
;
7822 struct intel_crtc
*intel_crtc
;
7823 unsigned disable_pipes
, prepare_pipes
, modeset_pipes
;
7826 saved_mode
= kmalloc(2 * sizeof(*saved_mode
), GFP_KERNEL
);
7829 saved_hwmode
= saved_mode
+ 1;
7831 intel_modeset_affected_pipes(crtc
, &modeset_pipes
,
7832 &prepare_pipes
, &disable_pipes
);
7834 *saved_hwmode
= crtc
->hwmode
;
7835 *saved_mode
= crtc
->mode
;
7837 /* Hack: Because we don't (yet) support global modeset on multiple
7838 * crtcs, we don't keep track of the new mode for more than one crtc.
7839 * Hence simply check whether any bit is set in modeset_pipes in all the
7840 * pieces of code that are not yet converted to deal with mutliple crtcs
7841 * changing their mode at the same time. */
7842 if (modeset_pipes
) {
7843 pipe_config
= intel_modeset_pipe_config(crtc
, fb
, mode
);
7844 if (IS_ERR(pipe_config
)) {
7845 ret
= PTR_ERR(pipe_config
);
7852 DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
7853 modeset_pipes
, prepare_pipes
, disable_pipes
);
7855 for_each_intel_crtc_masked(dev
, disable_pipes
, intel_crtc
)
7856 intel_crtc_disable(&intel_crtc
->base
);
7858 for_each_intel_crtc_masked(dev
, prepare_pipes
, intel_crtc
) {
7859 if (intel_crtc
->base
.enabled
)
7860 dev_priv
->display
.crtc_disable(&intel_crtc
->base
);
7863 /* crtc->mode is already used by the ->mode_set callbacks, hence we need
7864 * to set it here already despite that we pass it down the callchain.
7866 if (modeset_pipes
) {
7868 /* mode_set/enable/disable functions rely on a correct pipe
7870 to_intel_crtc(crtc
)->config
= *pipe_config
;
7873 /* Only after disabling all output pipelines that will be changed can we
7874 * update the the output configuration. */
7875 intel_modeset_update_state(dev
, prepare_pipes
);
7877 if (dev_priv
->display
.modeset_global_resources
)
7878 dev_priv
->display
.modeset_global_resources(dev
);
7880 /* Set up the DPLL and any encoders state that needs to adjust or depend
7883 for_each_intel_crtc_masked(dev
, modeset_pipes
, intel_crtc
) {
7884 ret
= intel_crtc_mode_set(&intel_crtc
->base
,
7890 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
7891 for_each_intel_crtc_masked(dev
, prepare_pipes
, intel_crtc
)
7892 dev_priv
->display
.crtc_enable(&intel_crtc
->base
);
7894 if (modeset_pipes
) {
7895 /* Store real post-adjustment hardware mode. */
7896 crtc
->hwmode
= pipe_config
->adjusted_mode
;
7898 /* Calculate and store various constants which
7899 * are later needed by vblank and swap-completion
7900 * timestamping. They are derived from true hwmode.
7902 drm_calc_timestamping_constants(crtc
);
7905 /* FIXME: add subpixel order */
7907 if (ret
&& crtc
->enabled
) {
7908 crtc
->hwmode
= *saved_hwmode
;
7909 crtc
->mode
= *saved_mode
;
7911 intel_modeset_check_state(dev
);
7920 void intel_crtc_restore_mode(struct drm_crtc
*crtc
)
7922 intel_set_mode(crtc
, &crtc
->mode
, crtc
->x
, crtc
->y
, crtc
->fb
);
7925 #undef for_each_intel_crtc_masked
7927 static void intel_set_config_free(struct intel_set_config
*config
)
7932 kfree(config
->save_connector_encoders
);
7933 kfree(config
->save_encoder_crtcs
);
7937 static int intel_set_config_save_state(struct drm_device
*dev
,
7938 struct intel_set_config
*config
)
7940 struct drm_encoder
*encoder
;
7941 struct drm_connector
*connector
;
7944 config
->save_encoder_crtcs
=
7945 kcalloc(dev
->mode_config
.num_encoder
,
7946 sizeof(struct drm_crtc
*), GFP_KERNEL
);
7947 if (!config
->save_encoder_crtcs
)
7950 config
->save_connector_encoders
=
7951 kcalloc(dev
->mode_config
.num_connector
,
7952 sizeof(struct drm_encoder
*), GFP_KERNEL
);
7953 if (!config
->save_connector_encoders
)
7956 /* Copy data. Note that driver private data is not affected.
7957 * Should anything bad happen only the expected state is
7958 * restored, not the drivers personal bookkeeping.
7961 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
) {
7962 config
->save_encoder_crtcs
[count
++] = encoder
->crtc
;
7966 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
7967 config
->save_connector_encoders
[count
++] = connector
->encoder
;
7973 static void intel_set_config_restore_state(struct drm_device
*dev
,
7974 struct intel_set_config
*config
)
7976 struct intel_encoder
*encoder
;
7977 struct intel_connector
*connector
;
7981 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, base
.head
) {
7983 to_intel_crtc(config
->save_encoder_crtcs
[count
++]);
7987 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, base
.head
) {
7988 connector
->new_encoder
=
7989 to_intel_encoder(config
->save_connector_encoders
[count
++]);
7994 intel_set_config_compute_mode_changes(struct drm_mode_set
*set
,
7995 struct intel_set_config
*config
)
7998 /* We should be able to check here if the fb has the same properties
7999 * and then just flip_or_move it */
8000 if (set
->crtc
->fb
!= set
->fb
) {
8001 /* If we have no fb then treat it as a full mode set */
8002 if (set
->crtc
->fb
== NULL
) {
8003 DRM_DEBUG_KMS("crtc has no fb, full mode set\n");
8004 config
->mode_changed
= true;
8005 } else if (set
->fb
== NULL
) {
8006 config
->mode_changed
= true;
8007 } else if (set
->fb
->pixel_format
!=
8008 set
->crtc
->fb
->pixel_format
) {
8009 config
->mode_changed
= true;
8011 config
->fb_changed
= true;
8014 if (set
->fb
&& (set
->x
!= set
->crtc
->x
|| set
->y
!= set
->crtc
->y
))
8015 config
->fb_changed
= true;
8017 if (set
->mode
&& !drm_mode_equal(set
->mode
, &set
->crtc
->mode
)) {
8018 DRM_DEBUG_KMS("modes are different, full mode set\n");
8019 drm_mode_debug_printmodeline(&set
->crtc
->mode
);
8020 drm_mode_debug_printmodeline(set
->mode
);
8021 config
->mode_changed
= true;
8026 intel_modeset_stage_output_state(struct drm_device
*dev
,
8027 struct drm_mode_set
*set
,
8028 struct intel_set_config
*config
)
8030 struct drm_crtc
*new_crtc
;
8031 struct intel_connector
*connector
;
8032 struct intel_encoder
*encoder
;
8035 /* The upper layers ensure that we either disable a crtc or have a list
8036 * of connectors. For paranoia, double-check this. */
8037 WARN_ON(!set
->fb
&& (set
->num_connectors
!= 0));
8038 WARN_ON(set
->fb
&& (set
->num_connectors
== 0));
8041 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
8043 /* Otherwise traverse passed in connector list and get encoders
8045 for (ro
= 0; ro
< set
->num_connectors
; ro
++) {
8046 if (set
->connectors
[ro
] == &connector
->base
) {
8047 connector
->new_encoder
= connector
->encoder
;
8052 /* If we disable the crtc, disable all its connectors. Also, if
8053 * the connector is on the changing crtc but not on the new
8054 * connector list, disable it. */
8055 if ((!set
->fb
|| ro
== set
->num_connectors
) &&
8056 connector
->base
.encoder
&&
8057 connector
->base
.encoder
->crtc
== set
->crtc
) {
8058 connector
->new_encoder
= NULL
;
8060 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
8061 connector
->base
.base
.id
,
8062 drm_get_connector_name(&connector
->base
));
8066 if (&connector
->new_encoder
->base
!= connector
->base
.encoder
) {
8067 DRM_DEBUG_KMS("encoder changed, full mode switch\n");
8068 config
->mode_changed
= true;
8071 /* connector->new_encoder is now updated for all connectors. */
8073 /* Update crtc of enabled connectors. */
8075 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
8077 if (!connector
->new_encoder
)
8080 new_crtc
= connector
->new_encoder
->base
.crtc
;
8082 for (ro
= 0; ro
< set
->num_connectors
; ro
++) {
8083 if (set
->connectors
[ro
] == &connector
->base
)
8084 new_crtc
= set
->crtc
;
8087 /* Make sure the new CRTC will work with the encoder */
8088 if (!intel_encoder_crtc_ok(&connector
->new_encoder
->base
,
8092 connector
->encoder
->new_crtc
= to_intel_crtc(new_crtc
);
8094 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
8095 connector
->base
.base
.id
,
8096 drm_get_connector_name(&connector
->base
),
8100 /* Check for any encoders that needs to be disabled. */
8101 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
8103 list_for_each_entry(connector
,
8104 &dev
->mode_config
.connector_list
,
8106 if (connector
->new_encoder
== encoder
) {
8107 WARN_ON(!connector
->new_encoder
->new_crtc
);
8112 encoder
->new_crtc
= NULL
;
8114 /* Only now check for crtc changes so we don't miss encoders
8115 * that will be disabled. */
8116 if (&encoder
->new_crtc
->base
!= encoder
->base
.crtc
) {
8117 DRM_DEBUG_KMS("crtc changed, full mode switch\n");
8118 config
->mode_changed
= true;
8121 /* Now we've also updated encoder->new_crtc for all encoders. */
8126 static int intel_crtc_set_config(struct drm_mode_set
*set
)
8128 struct drm_device
*dev
;
8129 struct drm_mode_set save_set
;
8130 struct intel_set_config
*config
;
8135 BUG_ON(!set
->crtc
->helper_private
);
8137 /* Enforce sane interface api - has been abused by the fb helper. */
8138 BUG_ON(!set
->mode
&& set
->fb
);
8139 BUG_ON(set
->fb
&& set
->num_connectors
== 0);
8142 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
8143 set
->crtc
->base
.id
, set
->fb
->base
.id
,
8144 (int)set
->num_connectors
, set
->x
, set
->y
);
8146 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set
->crtc
->base
.id
);
8149 dev
= set
->crtc
->dev
;
8152 config
= kzalloc(sizeof(*config
), GFP_KERNEL
);
8156 ret
= intel_set_config_save_state(dev
, config
);
8160 save_set
.crtc
= set
->crtc
;
8161 save_set
.mode
= &set
->crtc
->mode
;
8162 save_set
.x
= set
->crtc
->x
;
8163 save_set
.y
= set
->crtc
->y
;
8164 save_set
.fb
= set
->crtc
->fb
;
8166 /* Compute whether we need a full modeset, only an fb base update or no
8167 * change at all. In the future we might also check whether only the
8168 * mode changed, e.g. for LVDS where we only change the panel fitter in
8170 intel_set_config_compute_mode_changes(set
, config
);
8172 ret
= intel_modeset_stage_output_state(dev
, set
, config
);
8176 if (config
->mode_changed
) {
8178 DRM_DEBUG_KMS("attempting to set mode from"
8180 drm_mode_debug_printmodeline(set
->mode
);
8183 ret
= intel_set_mode(set
->crtc
, set
->mode
,
8184 set
->x
, set
->y
, set
->fb
);
8186 DRM_ERROR("failed to set mode on [CRTC:%d], err = %d\n",
8187 set
->crtc
->base
.id
, ret
);
8190 } else if (config
->fb_changed
) {
8191 intel_crtc_wait_for_pending_flips(set
->crtc
);
8193 ret
= intel_pipe_set_base(set
->crtc
,
8194 set
->x
, set
->y
, set
->fb
);
8197 intel_set_config_free(config
);
8202 intel_set_config_restore_state(dev
, config
);
8204 /* Try to restore the config */
8205 if (config
->mode_changed
&&
8206 intel_set_mode(save_set
.crtc
, save_set
.mode
,
8207 save_set
.x
, save_set
.y
, save_set
.fb
))
8208 DRM_ERROR("failed to restore config after modeset failure\n");
8211 intel_set_config_free(config
);
8215 static const struct drm_crtc_funcs intel_crtc_funcs
= {
8216 .cursor_set
= intel_crtc_cursor_set
,
8217 .cursor_move
= intel_crtc_cursor_move
,
8218 .gamma_set
= intel_crtc_gamma_set
,
8219 .set_config
= intel_crtc_set_config
,
8220 .destroy
= intel_crtc_destroy
,
8221 .page_flip
= intel_crtc_page_flip
,
8224 static void intel_cpu_pll_init(struct drm_device
*dev
)
8227 intel_ddi_pll_init(dev
);
8230 static void intel_pch_pll_init(struct drm_device
*dev
)
8232 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
8235 if (dev_priv
->num_pch_pll
== 0) {
8236 DRM_DEBUG_KMS("No PCH PLLs on this hardware, skipping initialisation\n");
8240 for (i
= 0; i
< dev_priv
->num_pch_pll
; i
++) {
8241 dev_priv
->pch_plls
[i
].pll_reg
= _PCH_DPLL(i
);
8242 dev_priv
->pch_plls
[i
].fp0_reg
= _PCH_FP0(i
);
8243 dev_priv
->pch_plls
[i
].fp1_reg
= _PCH_FP1(i
);
8247 static void intel_crtc_init(struct drm_device
*dev
, int pipe
)
8249 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
8250 struct intel_crtc
*intel_crtc
;
8253 intel_crtc
= kzalloc(sizeof(struct intel_crtc
) + (INTELFB_CONN_LIMIT
* sizeof(struct drm_connector
*)), GFP_KERNEL
);
8254 if (intel_crtc
== NULL
)
8257 drm_crtc_init(dev
, &intel_crtc
->base
, &intel_crtc_funcs
);
8259 drm_mode_crtc_set_gamma_size(&intel_crtc
->base
, 256);
8260 for (i
= 0; i
< 256; i
++) {
8261 intel_crtc
->lut_r
[i
] = i
;
8262 intel_crtc
->lut_g
[i
] = i
;
8263 intel_crtc
->lut_b
[i
] = i
;
8266 /* Swap pipes & planes for FBC on pre-965 */
8267 intel_crtc
->pipe
= pipe
;
8268 intel_crtc
->plane
= pipe
;
8269 intel_crtc
->cpu_transcoder
= pipe
;
8270 if (IS_MOBILE(dev
) && IS_GEN3(dev
)) {
8271 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
8272 intel_crtc
->plane
= !pipe
;
8275 BUG_ON(pipe
>= ARRAY_SIZE(dev_priv
->plane_to_crtc_mapping
) ||
8276 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] != NULL
);
8277 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] = &intel_crtc
->base
;
8278 dev_priv
->pipe_to_crtc_mapping
[intel_crtc
->pipe
] = &intel_crtc
->base
;
8280 drm_crtc_helper_add(&intel_crtc
->base
, &intel_helper_funcs
);
8283 int intel_get_pipe_from_crtc_id(struct drm_device
*dev
, void *data
,
8284 struct drm_file
*file
)
8286 struct drm_i915_get_pipe_from_crtc_id
*pipe_from_crtc_id
= data
;
8287 struct drm_mode_object
*drmmode_obj
;
8288 struct intel_crtc
*crtc
;
8290 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
8293 drmmode_obj
= drm_mode_object_find(dev
, pipe_from_crtc_id
->crtc_id
,
8294 DRM_MODE_OBJECT_CRTC
);
8297 DRM_ERROR("no such CRTC id\n");
8301 crtc
= to_intel_crtc(obj_to_crtc(drmmode_obj
));
8302 pipe_from_crtc_id
->pipe
= crtc
->pipe
;
8307 static int intel_encoder_clones(struct intel_encoder
*encoder
)
8309 struct drm_device
*dev
= encoder
->base
.dev
;
8310 struct intel_encoder
*source_encoder
;
8314 list_for_each_entry(source_encoder
,
8315 &dev
->mode_config
.encoder_list
, base
.head
) {
8317 if (encoder
== source_encoder
)
8318 index_mask
|= (1 << entry
);
8320 /* Intel hw has only one MUX where enocoders could be cloned. */
8321 if (encoder
->cloneable
&& source_encoder
->cloneable
)
8322 index_mask
|= (1 << entry
);
8330 static bool has_edp_a(struct drm_device
*dev
)
8332 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8334 if (!IS_MOBILE(dev
))
8337 if ((I915_READ(DP_A
) & DP_DETECTED
) == 0)
8341 (I915_READ(ILK_DISPLAY_CHICKEN_FUSES
) & ILK_eDP_A_DISABLE
))
8347 static void intel_setup_outputs(struct drm_device
*dev
)
8349 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8350 struct intel_encoder
*encoder
;
8351 bool dpd_is_edp
= false;
8354 has_lvds
= intel_lvds_init(dev
);
8355 if (!has_lvds
&& !HAS_PCH_SPLIT(dev
)) {
8356 /* disable the panel fitter on everything but LVDS */
8357 I915_WRITE(PFIT_CONTROL
, 0);
8360 if (!(HAS_DDI(dev
) && (I915_READ(DDI_BUF_CTL(PORT_A
)) & DDI_A_4_LANES
)))
8361 intel_crt_init(dev
);
8366 /* Haswell uses DDI functions to detect digital outputs */
8367 found
= I915_READ(DDI_BUF_CTL_A
) & DDI_INIT_DISPLAY_DETECTED
;
8368 /* DDI A only supports eDP */
8370 intel_ddi_init(dev
, PORT_A
);
8372 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
8374 found
= I915_READ(SFUSE_STRAP
);
8376 if (found
& SFUSE_STRAP_DDIB_DETECTED
)
8377 intel_ddi_init(dev
, PORT_B
);
8378 if (found
& SFUSE_STRAP_DDIC_DETECTED
)
8379 intel_ddi_init(dev
, PORT_C
);
8380 if (found
& SFUSE_STRAP_DDID_DETECTED
)
8381 intel_ddi_init(dev
, PORT_D
);
8382 } else if (HAS_PCH_SPLIT(dev
)) {
8384 dpd_is_edp
= intel_dpd_is_edp(dev
);
8387 intel_dp_init(dev
, DP_A
, PORT_A
);
8389 if (I915_READ(PCH_HDMIB
) & SDVO_DETECTED
) {
8390 /* PCH SDVOB multiplex with HDMIB */
8391 found
= intel_sdvo_init(dev
, PCH_SDVOB
, true);
8393 intel_hdmi_init(dev
, PCH_HDMIB
, PORT_B
);
8394 if (!found
&& (I915_READ(PCH_DP_B
) & DP_DETECTED
))
8395 intel_dp_init(dev
, PCH_DP_B
, PORT_B
);
8398 if (I915_READ(PCH_HDMIC
) & SDVO_DETECTED
)
8399 intel_hdmi_init(dev
, PCH_HDMIC
, PORT_C
);
8401 if (!dpd_is_edp
&& I915_READ(PCH_HDMID
) & SDVO_DETECTED
)
8402 intel_hdmi_init(dev
, PCH_HDMID
, PORT_D
);
8404 if (I915_READ(PCH_DP_C
) & DP_DETECTED
)
8405 intel_dp_init(dev
, PCH_DP_C
, PORT_C
);
8407 if (I915_READ(PCH_DP_D
) & DP_DETECTED
)
8408 intel_dp_init(dev
, PCH_DP_D
, PORT_D
);
8409 } else if (IS_VALLEYVIEW(dev
)) {
8410 /* Check for built-in panel first. Shares lanes with HDMI on SDVOC */
8411 if (I915_READ(VLV_DISPLAY_BASE
+ DP_C
) & DP_DETECTED
)
8412 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_C
, PORT_C
);
8414 if (I915_READ(VLV_DISPLAY_BASE
+ GEN4_HDMIB
) & SDVO_DETECTED
) {
8415 intel_hdmi_init(dev
, VLV_DISPLAY_BASE
+ GEN4_HDMIB
,
8417 if (I915_READ(VLV_DISPLAY_BASE
+ DP_B
) & DP_DETECTED
)
8418 intel_dp_init(dev
, VLV_DISPLAY_BASE
+ DP_B
, PORT_B
);
8420 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev
)) {
8423 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
8424 DRM_DEBUG_KMS("probing SDVOB\n");
8425 found
= intel_sdvo_init(dev
, GEN3_SDVOB
, true);
8426 if (!found
&& SUPPORTS_INTEGRATED_HDMI(dev
)) {
8427 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
8428 intel_hdmi_init(dev
, GEN4_HDMIB
, PORT_B
);
8431 if (!found
&& SUPPORTS_INTEGRATED_DP(dev
)) {
8432 DRM_DEBUG_KMS("probing DP_B\n");
8433 intel_dp_init(dev
, DP_B
, PORT_B
);
8437 /* Before G4X SDVOC doesn't have its own detect register */
8439 if (I915_READ(GEN3_SDVOB
) & SDVO_DETECTED
) {
8440 DRM_DEBUG_KMS("probing SDVOC\n");
8441 found
= intel_sdvo_init(dev
, GEN3_SDVOC
, false);
8444 if (!found
&& (I915_READ(GEN3_SDVOC
) & SDVO_DETECTED
)) {
8446 if (SUPPORTS_INTEGRATED_HDMI(dev
)) {
8447 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
8448 intel_hdmi_init(dev
, GEN4_HDMIC
, PORT_C
);
8450 if (SUPPORTS_INTEGRATED_DP(dev
)) {
8451 DRM_DEBUG_KMS("probing DP_C\n");
8452 intel_dp_init(dev
, DP_C
, PORT_C
);
8456 if (SUPPORTS_INTEGRATED_DP(dev
) &&
8457 (I915_READ(DP_D
) & DP_DETECTED
)) {
8458 DRM_DEBUG_KMS("probing DP_D\n");
8459 intel_dp_init(dev
, DP_D
, PORT_D
);
8461 } else if (IS_GEN2(dev
))
8462 intel_dvo_init(dev
);
8464 if (SUPPORTS_TV(dev
))
8467 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, base
.head
) {
8468 encoder
->base
.possible_crtcs
= encoder
->crtc_mask
;
8469 encoder
->base
.possible_clones
=
8470 intel_encoder_clones(encoder
);
8473 intel_init_pch_refclk(dev
);
8475 drm_helper_move_panel_connectors_to_head(dev
);
8478 static void intel_user_framebuffer_destroy(struct drm_framebuffer
*fb
)
8480 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
8482 drm_framebuffer_cleanup(fb
);
8483 drm_gem_object_unreference_unlocked(&intel_fb
->obj
->base
);
8488 static int intel_user_framebuffer_create_handle(struct drm_framebuffer
*fb
,
8489 struct drm_file
*file
,
8490 unsigned int *handle
)
8492 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
8493 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
8495 return drm_gem_handle_create(file
, &obj
->base
, handle
);
8498 static const struct drm_framebuffer_funcs intel_fb_funcs
= {
8499 .destroy
= intel_user_framebuffer_destroy
,
8500 .create_handle
= intel_user_framebuffer_create_handle
,
8503 int intel_framebuffer_init(struct drm_device
*dev
,
8504 struct intel_framebuffer
*intel_fb
,
8505 struct drm_mode_fb_cmd2
*mode_cmd
,
8506 struct drm_i915_gem_object
*obj
)
8510 if (obj
->tiling_mode
== I915_TILING_Y
) {
8511 DRM_DEBUG("hardware does not support tiling Y\n");
8515 if (mode_cmd
->pitches
[0] & 63) {
8516 DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n",
8517 mode_cmd
->pitches
[0]);
8521 /* FIXME <= Gen4 stride limits are bit unclear */
8522 if (mode_cmd
->pitches
[0] > 32768) {
8523 DRM_DEBUG("pitch (%d) must be at less than 32768\n",
8524 mode_cmd
->pitches
[0]);
8528 if (obj
->tiling_mode
!= I915_TILING_NONE
&&
8529 mode_cmd
->pitches
[0] != obj
->stride
) {
8530 DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n",
8531 mode_cmd
->pitches
[0], obj
->stride
);
8535 /* Reject formats not supported by any plane early. */
8536 switch (mode_cmd
->pixel_format
) {
8538 case DRM_FORMAT_RGB565
:
8539 case DRM_FORMAT_XRGB8888
:
8540 case DRM_FORMAT_ARGB8888
:
8542 case DRM_FORMAT_XRGB1555
:
8543 case DRM_FORMAT_ARGB1555
:
8544 if (INTEL_INFO(dev
)->gen
> 3) {
8545 DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd
->pixel_format
);
8549 case DRM_FORMAT_XBGR8888
:
8550 case DRM_FORMAT_ABGR8888
:
8551 case DRM_FORMAT_XRGB2101010
:
8552 case DRM_FORMAT_ARGB2101010
:
8553 case DRM_FORMAT_XBGR2101010
:
8554 case DRM_FORMAT_ABGR2101010
:
8555 if (INTEL_INFO(dev
)->gen
< 4) {
8556 DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd
->pixel_format
);
8560 case DRM_FORMAT_YUYV
:
8561 case DRM_FORMAT_UYVY
:
8562 case DRM_FORMAT_YVYU
:
8563 case DRM_FORMAT_VYUY
:
8564 if (INTEL_INFO(dev
)->gen
< 5) {
8565 DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd
->pixel_format
);
8570 DRM_DEBUG("unsupported pixel format 0x%08x\n", mode_cmd
->pixel_format
);
8574 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
8575 if (mode_cmd
->offsets
[0] != 0)
8578 drm_helper_mode_fill_fb_struct(&intel_fb
->base
, mode_cmd
);
8579 intel_fb
->obj
= obj
;
8581 ret
= drm_framebuffer_init(dev
, &intel_fb
->base
, &intel_fb_funcs
);
8583 DRM_ERROR("framebuffer init failed %d\n", ret
);
8590 static struct drm_framebuffer
*
8591 intel_user_framebuffer_create(struct drm_device
*dev
,
8592 struct drm_file
*filp
,
8593 struct drm_mode_fb_cmd2
*mode_cmd
)
8595 struct drm_i915_gem_object
*obj
;
8597 obj
= to_intel_bo(drm_gem_object_lookup(dev
, filp
,
8598 mode_cmd
->handles
[0]));
8599 if (&obj
->base
== NULL
)
8600 return ERR_PTR(-ENOENT
);
8602 return intel_framebuffer_create(dev
, mode_cmd
, obj
);
8605 static const struct drm_mode_config_funcs intel_mode_funcs
= {
8606 .fb_create
= intel_user_framebuffer_create
,
8607 .output_poll_changed
= intel_fb_output_poll_changed
,
8610 /* Set up chip specific display functions */
8611 static void intel_init_display(struct drm_device
*dev
)
8613 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8616 dev_priv
->display
.crtc_mode_set
= haswell_crtc_mode_set
;
8617 dev_priv
->display
.crtc_enable
= haswell_crtc_enable
;
8618 dev_priv
->display
.crtc_disable
= haswell_crtc_disable
;
8619 dev_priv
->display
.off
= haswell_crtc_off
;
8620 dev_priv
->display
.update_plane
= ironlake_update_plane
;
8621 } else if (HAS_PCH_SPLIT(dev
)) {
8622 dev_priv
->display
.crtc_mode_set
= ironlake_crtc_mode_set
;
8623 dev_priv
->display
.crtc_enable
= ironlake_crtc_enable
;
8624 dev_priv
->display
.crtc_disable
= ironlake_crtc_disable
;
8625 dev_priv
->display
.off
= ironlake_crtc_off
;
8626 dev_priv
->display
.update_plane
= ironlake_update_plane
;
8628 dev_priv
->display
.crtc_mode_set
= i9xx_crtc_mode_set
;
8629 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
8630 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
8631 dev_priv
->display
.off
= i9xx_crtc_off
;
8632 dev_priv
->display
.update_plane
= i9xx_update_plane
;
8635 /* Returns the core display clock speed */
8636 if (IS_VALLEYVIEW(dev
))
8637 dev_priv
->display
.get_display_clock_speed
=
8638 valleyview_get_display_clock_speed
;
8639 else if (IS_I945G(dev
) || (IS_G33(dev
) && !IS_PINEVIEW_M(dev
)))
8640 dev_priv
->display
.get_display_clock_speed
=
8641 i945_get_display_clock_speed
;
8642 else if (IS_I915G(dev
))
8643 dev_priv
->display
.get_display_clock_speed
=
8644 i915_get_display_clock_speed
;
8645 else if (IS_I945GM(dev
) || IS_845G(dev
) || IS_PINEVIEW_M(dev
))
8646 dev_priv
->display
.get_display_clock_speed
=
8647 i9xx_misc_get_display_clock_speed
;
8648 else if (IS_I915GM(dev
))
8649 dev_priv
->display
.get_display_clock_speed
=
8650 i915gm_get_display_clock_speed
;
8651 else if (IS_I865G(dev
))
8652 dev_priv
->display
.get_display_clock_speed
=
8653 i865_get_display_clock_speed
;
8654 else if (IS_I85X(dev
))
8655 dev_priv
->display
.get_display_clock_speed
=
8656 i855_get_display_clock_speed
;
8658 dev_priv
->display
.get_display_clock_speed
=
8659 i830_get_display_clock_speed
;
8661 if (HAS_PCH_SPLIT(dev
)) {
8663 dev_priv
->display
.fdi_link_train
= ironlake_fdi_link_train
;
8664 dev_priv
->display
.write_eld
= ironlake_write_eld
;
8665 } else if (IS_GEN6(dev
)) {
8666 dev_priv
->display
.fdi_link_train
= gen6_fdi_link_train
;
8667 dev_priv
->display
.write_eld
= ironlake_write_eld
;
8668 } else if (IS_IVYBRIDGE(dev
)) {
8669 /* FIXME: detect B0+ stepping and use auto training */
8670 dev_priv
->display
.fdi_link_train
= ivb_manual_fdi_link_train
;
8671 dev_priv
->display
.write_eld
= ironlake_write_eld
;
8672 dev_priv
->display
.modeset_global_resources
=
8673 ivb_modeset_global_resources
;
8674 } else if (IS_HASWELL(dev
)) {
8675 dev_priv
->display
.fdi_link_train
= hsw_fdi_link_train
;
8676 dev_priv
->display
.write_eld
= haswell_write_eld
;
8677 dev_priv
->display
.modeset_global_resources
=
8678 haswell_modeset_global_resources
;
8680 } else if (IS_G4X(dev
)) {
8681 dev_priv
->display
.write_eld
= g4x_write_eld
;
8684 /* Default just returns -ENODEV to indicate unsupported */
8685 dev_priv
->display
.queue_flip
= intel_default_queue_flip
;
8687 switch (INTEL_INFO(dev
)->gen
) {
8689 dev_priv
->display
.queue_flip
= intel_gen2_queue_flip
;
8693 dev_priv
->display
.queue_flip
= intel_gen3_queue_flip
;
8698 dev_priv
->display
.queue_flip
= intel_gen4_queue_flip
;
8702 dev_priv
->display
.queue_flip
= intel_gen6_queue_flip
;
8705 dev_priv
->display
.queue_flip
= intel_gen7_queue_flip
;
8711 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
8712 * resume, or other times. This quirk makes sure that's the case for
8715 static void quirk_pipea_force(struct drm_device
*dev
)
8717 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8719 dev_priv
->quirks
|= QUIRK_PIPEA_FORCE
;
8720 DRM_INFO("applying pipe a force quirk\n");
8724 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
8726 static void quirk_ssc_force_disable(struct drm_device
*dev
)
8728 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8729 dev_priv
->quirks
|= QUIRK_LVDS_SSC_DISABLE
;
8730 DRM_INFO("applying lvds SSC disable quirk\n");
8734 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
8737 static void quirk_invert_brightness(struct drm_device
*dev
)
8739 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8740 dev_priv
->quirks
|= QUIRK_INVERT_BRIGHTNESS
;
8741 DRM_INFO("applying inverted panel brightness quirk\n");
8744 struct intel_quirk
{
8746 int subsystem_vendor
;
8747 int subsystem_device
;
8748 void (*hook
)(struct drm_device
*dev
);
8751 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
8752 struct intel_dmi_quirk
{
8753 void (*hook
)(struct drm_device
*dev
);
8754 const struct dmi_system_id (*dmi_id_list
)[];
8757 static int intel_dmi_reverse_brightness(const struct dmi_system_id
*id
)
8759 DRM_INFO("Backlight polarity reversed on %s\n", id
->ident
);
8763 static const struct intel_dmi_quirk intel_dmi_quirks
[] = {
8765 .dmi_id_list
= &(const struct dmi_system_id
[]) {
8767 .callback
= intel_dmi_reverse_brightness
,
8768 .ident
= "NCR Corporation",
8769 .matches
= {DMI_MATCH(DMI_SYS_VENDOR
, "NCR Corporation"),
8770 DMI_MATCH(DMI_PRODUCT_NAME
, ""),
8773 { } /* terminating entry */
8775 .hook
= quirk_invert_brightness
,
8779 static struct intel_quirk intel_quirks
[] = {
8780 /* HP Mini needs pipe A force quirk (LP: #322104) */
8781 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force
},
8783 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
8784 { 0x2592, 0x1179, 0x0001, quirk_pipea_force
},
8786 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
8787 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force
},
8789 /* 830/845 need to leave pipe A & dpll A up */
8790 { 0x2562, PCI_ANY_ID
, PCI_ANY_ID
, quirk_pipea_force
},
8791 { 0x3577, PCI_ANY_ID
, PCI_ANY_ID
, quirk_pipea_force
},
8793 /* Lenovo U160 cannot use SSC on LVDS */
8794 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable
},
8796 /* Sony Vaio Y cannot use SSC on LVDS */
8797 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable
},
8799 /* Acer Aspire 5734Z must invert backlight brightness */
8800 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness
},
8802 /* Acer/eMachines G725 */
8803 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness
},
8805 /* Acer/eMachines e725 */
8806 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness
},
8808 /* Acer/Packard Bell NCL20 */
8809 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness
},
8811 /* Acer Aspire 4736Z */
8812 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness
},
8815 static void intel_init_quirks(struct drm_device
*dev
)
8817 struct pci_dev
*d
= dev
->pdev
;
8820 for (i
= 0; i
< ARRAY_SIZE(intel_quirks
); i
++) {
8821 struct intel_quirk
*q
= &intel_quirks
[i
];
8823 if (d
->device
== q
->device
&&
8824 (d
->subsystem_vendor
== q
->subsystem_vendor
||
8825 q
->subsystem_vendor
== PCI_ANY_ID
) &&
8826 (d
->subsystem_device
== q
->subsystem_device
||
8827 q
->subsystem_device
== PCI_ANY_ID
))
8830 for (i
= 0; i
< ARRAY_SIZE(intel_dmi_quirks
); i
++) {
8831 if (dmi_check_system(*intel_dmi_quirks
[i
].dmi_id_list
) != 0)
8832 intel_dmi_quirks
[i
].hook(dev
);
8836 /* Disable the VGA plane that we never use */
8837 static void i915_disable_vga(struct drm_device
*dev
)
8839 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8841 u32 vga_reg
= i915_vgacntrl_reg(dev
);
8843 vga_get_uninterruptible(dev
->pdev
, VGA_RSRC_LEGACY_IO
);
8844 outb(SR01
, VGA_SR_INDEX
);
8845 sr1
= inb(VGA_SR_DATA
);
8846 outb(sr1
| 1<<5, VGA_SR_DATA
);
8847 vga_put(dev
->pdev
, VGA_RSRC_LEGACY_IO
);
8850 I915_WRITE(vga_reg
, VGA_DISP_DISABLE
);
8851 POSTING_READ(vga_reg
);
8854 void intel_modeset_init_hw(struct drm_device
*dev
)
8856 intel_init_power_well(dev
);
8858 intel_prepare_ddi(dev
);
8860 intel_init_clock_gating(dev
);
8862 mutex_lock(&dev
->struct_mutex
);
8863 intel_enable_gt_powersave(dev
);
8864 mutex_unlock(&dev
->struct_mutex
);
8867 void intel_modeset_init(struct drm_device
*dev
)
8869 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8872 drm_mode_config_init(dev
);
8874 dev
->mode_config
.min_width
= 0;
8875 dev
->mode_config
.min_height
= 0;
8877 dev
->mode_config
.preferred_depth
= 24;
8878 dev
->mode_config
.prefer_shadow
= 1;
8880 dev
->mode_config
.funcs
= &intel_mode_funcs
;
8882 intel_init_quirks(dev
);
8886 intel_init_display(dev
);
8889 dev
->mode_config
.max_width
= 2048;
8890 dev
->mode_config
.max_height
= 2048;
8891 } else if (IS_GEN3(dev
)) {
8892 dev
->mode_config
.max_width
= 4096;
8893 dev
->mode_config
.max_height
= 4096;
8895 dev
->mode_config
.max_width
= 8192;
8896 dev
->mode_config
.max_height
= 8192;
8898 dev
->mode_config
.fb_base
= dev_priv
->gtt
.mappable_base
;
8900 DRM_DEBUG_KMS("%d display pipe%s available.\n",
8901 INTEL_INFO(dev
)->num_pipes
,
8902 INTEL_INFO(dev
)->num_pipes
> 1 ? "s" : "");
8904 for (i
= 0; i
< INTEL_INFO(dev
)->num_pipes
; i
++) {
8905 intel_crtc_init(dev
, i
);
8906 ret
= intel_plane_init(dev
, i
);
8908 DRM_DEBUG_KMS("plane %d init failed: %d\n", i
, ret
);
8911 intel_cpu_pll_init(dev
);
8912 intel_pch_pll_init(dev
);
8914 /* Just disable it once at startup */
8915 i915_disable_vga(dev
);
8916 intel_setup_outputs(dev
);
8918 /* Just in case the BIOS is doing something questionable. */
8919 intel_disable_fbc(dev
);
8923 intel_connector_break_all_links(struct intel_connector
*connector
)
8925 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
8926 connector
->base
.encoder
= NULL
;
8927 connector
->encoder
->connectors_active
= false;
8928 connector
->encoder
->base
.crtc
= NULL
;
8931 static void intel_enable_pipe_a(struct drm_device
*dev
)
8933 struct intel_connector
*connector
;
8934 struct drm_connector
*crt
= NULL
;
8935 struct intel_load_detect_pipe load_detect_temp
;
8937 /* We can't just switch on the pipe A, we need to set things up with a
8938 * proper mode and output configuration. As a gross hack, enable pipe A
8939 * by enabling the load detect pipe once. */
8940 list_for_each_entry(connector
,
8941 &dev
->mode_config
.connector_list
,
8943 if (connector
->encoder
->type
== INTEL_OUTPUT_ANALOG
) {
8944 crt
= &connector
->base
;
8952 if (intel_get_load_detect_pipe(crt
, NULL
, &load_detect_temp
))
8953 intel_release_load_detect_pipe(crt
, &load_detect_temp
);
8959 intel_check_plane_mapping(struct intel_crtc
*crtc
)
8961 struct drm_device
*dev
= crtc
->base
.dev
;
8962 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8965 if (INTEL_INFO(dev
)->num_pipes
== 1)
8968 reg
= DSPCNTR(!crtc
->plane
);
8969 val
= I915_READ(reg
);
8971 if ((val
& DISPLAY_PLANE_ENABLE
) &&
8972 (!!(val
& DISPPLANE_SEL_PIPE_MASK
) == crtc
->pipe
))
8978 static void intel_sanitize_crtc(struct intel_crtc
*crtc
)
8980 struct drm_device
*dev
= crtc
->base
.dev
;
8981 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8984 /* Clear any frame start delays used for debugging left by the BIOS */
8985 reg
= PIPECONF(crtc
->cpu_transcoder
);
8986 I915_WRITE(reg
, I915_READ(reg
) & ~PIPECONF_FRAME_START_DELAY_MASK
);
8988 /* We need to sanitize the plane -> pipe mapping first because this will
8989 * disable the crtc (and hence change the state) if it is wrong. Note
8990 * that gen4+ has a fixed plane -> pipe mapping. */
8991 if (INTEL_INFO(dev
)->gen
< 4 && !intel_check_plane_mapping(crtc
)) {
8992 struct intel_connector
*connector
;
8995 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
8996 crtc
->base
.base
.id
);
8998 /* Pipe has the wrong plane attached and the plane is active.
8999 * Temporarily change the plane mapping and disable everything
9001 plane
= crtc
->plane
;
9002 crtc
->plane
= !plane
;
9003 dev_priv
->display
.crtc_disable(&crtc
->base
);
9004 crtc
->plane
= plane
;
9006 /* ... and break all links. */
9007 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
9009 if (connector
->encoder
->base
.crtc
!= &crtc
->base
)
9012 intel_connector_break_all_links(connector
);
9015 WARN_ON(crtc
->active
);
9016 crtc
->base
.enabled
= false;
9019 if (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
&&
9020 crtc
->pipe
== PIPE_A
&& !crtc
->active
) {
9021 /* BIOS forgot to enable pipe A, this mostly happens after
9022 * resume. Force-enable the pipe to fix this, the update_dpms
9023 * call below we restore the pipe to the right state, but leave
9024 * the required bits on. */
9025 intel_enable_pipe_a(dev
);
9028 /* Adjust the state of the output pipe according to whether we
9029 * have active connectors/encoders. */
9030 intel_crtc_update_dpms(&crtc
->base
);
9032 if (crtc
->active
!= crtc
->base
.enabled
) {
9033 struct intel_encoder
*encoder
;
9035 /* This can happen either due to bugs in the get_hw_state
9036 * functions or because the pipe is force-enabled due to the
9038 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
9040 crtc
->base
.enabled
? "enabled" : "disabled",
9041 crtc
->active
? "enabled" : "disabled");
9043 crtc
->base
.enabled
= crtc
->active
;
9045 /* Because we only establish the connector -> encoder ->
9046 * crtc links if something is active, this means the
9047 * crtc is now deactivated. Break the links. connector
9048 * -> encoder links are only establish when things are
9049 * actually up, hence no need to break them. */
9050 WARN_ON(crtc
->active
);
9052 for_each_encoder_on_crtc(dev
, &crtc
->base
, encoder
) {
9053 WARN_ON(encoder
->connectors_active
);
9054 encoder
->base
.crtc
= NULL
;
9059 static void intel_sanitize_encoder(struct intel_encoder
*encoder
)
9061 struct intel_connector
*connector
;
9062 struct drm_device
*dev
= encoder
->base
.dev
;
9064 /* We need to check both for a crtc link (meaning that the
9065 * encoder is active and trying to read from a pipe) and the
9066 * pipe itself being active. */
9067 bool has_active_crtc
= encoder
->base
.crtc
&&
9068 to_intel_crtc(encoder
->base
.crtc
)->active
;
9070 if (encoder
->connectors_active
&& !has_active_crtc
) {
9071 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
9072 encoder
->base
.base
.id
,
9073 drm_get_encoder_name(&encoder
->base
));
9075 /* Connector is active, but has no active pipe. This is
9076 * fallout from our resume register restoring. Disable
9077 * the encoder manually again. */
9078 if (encoder
->base
.crtc
) {
9079 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
9080 encoder
->base
.base
.id
,
9081 drm_get_encoder_name(&encoder
->base
));
9082 encoder
->disable(encoder
);
9085 /* Inconsistent output/port/pipe state happens presumably due to
9086 * a bug in one of the get_hw_state functions. Or someplace else
9087 * in our code, like the register restore mess on resume. Clamp
9088 * things to off as a safer default. */
9089 list_for_each_entry(connector
,
9090 &dev
->mode_config
.connector_list
,
9092 if (connector
->encoder
!= encoder
)
9095 intel_connector_break_all_links(connector
);
9098 /* Enabled encoders without active connectors will be fixed in
9099 * the crtc fixup. */
9102 void i915_redisable_vga(struct drm_device
*dev
)
9104 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9105 u32 vga_reg
= i915_vgacntrl_reg(dev
);
9107 if (I915_READ(vga_reg
) != VGA_DISP_DISABLE
) {
9108 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
9109 i915_disable_vga(dev
);
9113 /* Scan out the current hw modeset state, sanitizes it and maps it into the drm
9114 * and i915 state tracking structures. */
9115 void intel_modeset_setup_hw_state(struct drm_device
*dev
,
9118 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9121 struct drm_plane
*plane
;
9122 struct intel_crtc
*crtc
;
9123 struct intel_encoder
*encoder
;
9124 struct intel_connector
*connector
;
9127 tmp
= I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP
));
9129 if (tmp
& TRANS_DDI_FUNC_ENABLE
) {
9130 switch (tmp
& TRANS_DDI_EDP_INPUT_MASK
) {
9131 case TRANS_DDI_EDP_INPUT_A_ON
:
9132 case TRANS_DDI_EDP_INPUT_A_ONOFF
:
9135 case TRANS_DDI_EDP_INPUT_B_ONOFF
:
9138 case TRANS_DDI_EDP_INPUT_C_ONOFF
:
9142 /* A bogus value has been programmed, disable
9144 WARN(1, "Bogus eDP source %08x\n", tmp
);
9145 intel_ddi_disable_transcoder_func(dev_priv
,
9150 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
9151 crtc
->cpu_transcoder
= TRANSCODER_EDP
;
9153 DRM_DEBUG_KMS("Pipe %c using transcoder EDP\n",
9159 for_each_pipe(pipe
) {
9160 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
9162 tmp
= I915_READ(PIPECONF(crtc
->cpu_transcoder
));
9163 if (tmp
& PIPECONF_ENABLE
)
9164 crtc
->active
= true;
9166 crtc
->active
= false;
9168 crtc
->base
.enabled
= crtc
->active
;
9170 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
9172 crtc
->active
? "enabled" : "disabled");
9176 intel_ddi_setup_hw_pll_state(dev
);
9178 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
9182 if (encoder
->get_hw_state(encoder
, &pipe
)) {
9183 encoder
->base
.crtc
=
9184 dev_priv
->pipe_to_crtc_mapping
[pipe
];
9186 encoder
->base
.crtc
= NULL
;
9189 encoder
->connectors_active
= false;
9190 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe=%i\n",
9191 encoder
->base
.base
.id
,
9192 drm_get_encoder_name(&encoder
->base
),
9193 encoder
->base
.crtc
? "enabled" : "disabled",
9197 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
9199 if (connector
->get_hw_state(connector
)) {
9200 connector
->base
.dpms
= DRM_MODE_DPMS_ON
;
9201 connector
->encoder
->connectors_active
= true;
9202 connector
->base
.encoder
= &connector
->encoder
->base
;
9204 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
9205 connector
->base
.encoder
= NULL
;
9207 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
9208 connector
->base
.base
.id
,
9209 drm_get_connector_name(&connector
->base
),
9210 connector
->base
.encoder
? "enabled" : "disabled");
9213 /* HW state is read out, now we need to sanitize this mess. */
9214 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
9216 intel_sanitize_encoder(encoder
);
9219 for_each_pipe(pipe
) {
9220 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
9221 intel_sanitize_crtc(crtc
);
9224 if (force_restore
) {
9225 for_each_pipe(pipe
) {
9226 struct drm_crtc
*crtc
=
9227 dev_priv
->pipe_to_crtc_mapping
[pipe
];
9228 intel_crtc_restore_mode(crtc
);
9230 list_for_each_entry(plane
, &dev
->mode_config
.plane_list
, head
)
9231 intel_plane_restore(plane
);
9233 i915_redisable_vga(dev
);
9235 intel_modeset_update_staged_output_state(dev
);
9238 intel_modeset_check_state(dev
);
9240 drm_mode_config_reset(dev
);
9243 void intel_modeset_gem_init(struct drm_device
*dev
)
9245 intel_modeset_init_hw(dev
);
9247 intel_setup_overlay(dev
);
9249 intel_modeset_setup_hw_state(dev
, false);
9252 void intel_modeset_cleanup(struct drm_device
*dev
)
9254 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9255 struct drm_crtc
*crtc
;
9256 struct intel_crtc
*intel_crtc
;
9258 drm_kms_helper_poll_fini(dev
);
9259 mutex_lock(&dev
->struct_mutex
);
9261 intel_unregister_dsm_handler();
9264 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
9265 /* Skip inactive CRTCs */
9269 intel_crtc
= to_intel_crtc(crtc
);
9270 intel_increase_pllclock(crtc
);
9273 intel_disable_fbc(dev
);
9275 intel_disable_gt_powersave(dev
);
9277 ironlake_teardown_rc6(dev
);
9279 if (IS_VALLEYVIEW(dev
))
9282 mutex_unlock(&dev
->struct_mutex
);
9284 /* Disable the irq before mode object teardown, for the irq might
9285 * enqueue unpin/hotplug work. */
9286 drm_irq_uninstall(dev
);
9287 cancel_work_sync(&dev_priv
->hotplug_work
);
9288 cancel_work_sync(&dev_priv
->rps
.work
);
9290 /* flush any delayed tasks or pending work */
9291 flush_scheduled_work();
9293 drm_mode_config_cleanup(dev
);
9295 intel_cleanup_overlay(dev
);
9299 * Return which encoder is currently attached for connector.
9301 struct drm_encoder
*intel_best_encoder(struct drm_connector
*connector
)
9303 return &intel_attached_encoder(connector
)->base
;
9306 void intel_connector_attach_encoder(struct intel_connector
*connector
,
9307 struct intel_encoder
*encoder
)
9309 connector
->encoder
= encoder
;
9310 drm_mode_connector_attach_encoder(&connector
->base
,
9315 * set vga decode state - true == enable VGA decode
9317 int intel_modeset_vga_set_state(struct drm_device
*dev
, bool state
)
9319 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
9322 pci_read_config_word(dev_priv
->bridge_dev
, INTEL_GMCH_CTRL
, &gmch_ctrl
);
9324 gmch_ctrl
&= ~INTEL_GMCH_VGA_DISABLE
;
9326 gmch_ctrl
|= INTEL_GMCH_VGA_DISABLE
;
9327 pci_write_config_word(dev_priv
->bridge_dev
, INTEL_GMCH_CTRL
, gmch_ctrl
);
9331 #ifdef CONFIG_DEBUG_FS
9332 #include <linux/seq_file.h>
9334 struct intel_display_error_state
{
9335 struct intel_cursor_error_state
{
9340 } cursor
[I915_MAX_PIPES
];
9342 struct intel_pipe_error_state
{
9352 } pipe
[I915_MAX_PIPES
];
9354 struct intel_plane_error_state
{
9362 } plane
[I915_MAX_PIPES
];
9365 struct intel_display_error_state
*
9366 intel_display_capture_error_state(struct drm_device
*dev
)
9368 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
9369 struct intel_display_error_state
*error
;
9370 enum transcoder cpu_transcoder
;
9373 error
= kmalloc(sizeof(*error
), GFP_ATOMIC
);
9378 cpu_transcoder
= intel_pipe_to_cpu_transcoder(dev_priv
, i
);
9380 if (INTEL_INFO(dev
)->gen
<= 6 || IS_VALLEYVIEW(dev
)) {
9381 error
->cursor
[i
].control
= I915_READ(CURCNTR(i
));
9382 error
->cursor
[i
].position
= I915_READ(CURPOS(i
));
9383 error
->cursor
[i
].base
= I915_READ(CURBASE(i
));
9385 error
->cursor
[i
].control
= I915_READ(CURCNTR_IVB(i
));
9386 error
->cursor
[i
].position
= I915_READ(CURPOS_IVB(i
));
9387 error
->cursor
[i
].base
= I915_READ(CURBASE_IVB(i
));
9390 error
->plane
[i
].control
= I915_READ(DSPCNTR(i
));
9391 error
->plane
[i
].stride
= I915_READ(DSPSTRIDE(i
));
9392 if (INTEL_INFO(dev
)->gen
<= 3) {
9393 error
->plane
[i
].size
= I915_READ(DSPSIZE(i
));
9394 error
->plane
[i
].pos
= I915_READ(DSPPOS(i
));
9396 if (INTEL_INFO(dev
)->gen
<= 7 && !IS_HASWELL(dev
))
9397 error
->plane
[i
].addr
= I915_READ(DSPADDR(i
));
9398 if (INTEL_INFO(dev
)->gen
>= 4) {
9399 error
->plane
[i
].surface
= I915_READ(DSPSURF(i
));
9400 error
->plane
[i
].tile_offset
= I915_READ(DSPTILEOFF(i
));
9403 error
->pipe
[i
].conf
= I915_READ(PIPECONF(cpu_transcoder
));
9404 error
->pipe
[i
].source
= I915_READ(PIPESRC(i
));
9405 error
->pipe
[i
].htotal
= I915_READ(HTOTAL(cpu_transcoder
));
9406 error
->pipe
[i
].hblank
= I915_READ(HBLANK(cpu_transcoder
));
9407 error
->pipe
[i
].hsync
= I915_READ(HSYNC(cpu_transcoder
));
9408 error
->pipe
[i
].vtotal
= I915_READ(VTOTAL(cpu_transcoder
));
9409 error
->pipe
[i
].vblank
= I915_READ(VBLANK(cpu_transcoder
));
9410 error
->pipe
[i
].vsync
= I915_READ(VSYNC(cpu_transcoder
));
9417 intel_display_print_error_state(struct seq_file
*m
,
9418 struct drm_device
*dev
,
9419 struct intel_display_error_state
*error
)
9423 seq_printf(m
, "Num Pipes: %d\n", INTEL_INFO(dev
)->num_pipes
);
9425 seq_printf(m
, "Pipe [%d]:\n", i
);
9426 seq_printf(m
, " CONF: %08x\n", error
->pipe
[i
].conf
);
9427 seq_printf(m
, " SRC: %08x\n", error
->pipe
[i
].source
);
9428 seq_printf(m
, " HTOTAL: %08x\n", error
->pipe
[i
].htotal
);
9429 seq_printf(m
, " HBLANK: %08x\n", error
->pipe
[i
].hblank
);
9430 seq_printf(m
, " HSYNC: %08x\n", error
->pipe
[i
].hsync
);
9431 seq_printf(m
, " VTOTAL: %08x\n", error
->pipe
[i
].vtotal
);
9432 seq_printf(m
, " VBLANK: %08x\n", error
->pipe
[i
].vblank
);
9433 seq_printf(m
, " VSYNC: %08x\n", error
->pipe
[i
].vsync
);
9435 seq_printf(m
, "Plane [%d]:\n", i
);
9436 seq_printf(m
, " CNTR: %08x\n", error
->plane
[i
].control
);
9437 seq_printf(m
, " STRIDE: %08x\n", error
->plane
[i
].stride
);
9438 if (INTEL_INFO(dev
)->gen
<= 3) {
9439 seq_printf(m
, " SIZE: %08x\n", error
->plane
[i
].size
);
9440 seq_printf(m
, " POS: %08x\n", error
->plane
[i
].pos
);
9442 if (INTEL_INFO(dev
)->gen
<= 7 && !IS_HASWELL(dev
))
9443 seq_printf(m
, " ADDR: %08x\n", error
->plane
[i
].addr
);
9444 if (INTEL_INFO(dev
)->gen
>= 4) {
9445 seq_printf(m
, " SURF: %08x\n", error
->plane
[i
].surface
);
9446 seq_printf(m
, " TILEOFF: %08x\n", error
->plane
[i
].tile_offset
);
9449 seq_printf(m
, "Cursor [%d]:\n", i
);
9450 seq_printf(m
, " CNTR: %08x\n", error
->cursor
[i
].control
);
9451 seq_printf(m
, " POS: %08x\n", error
->cursor
[i
].position
);
9452 seq_printf(m
, " BASE: %08x\n", error
->cursor
[i
].base
);