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 (!intel_using_power_well(dev_priv->dev) &&
1231 cpu_transcoder != TRANSCODER_EDP) {
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_sprites_disabled(struct drm_i915_private *dev_priv,
1297 if (!IS_VALLEYVIEW(dev_priv->dev))
1300 /* Need to check both planes against the pipe */
1301 for (i = 0; i < dev_priv->num_plane; i++) {
1302 reg = SPCNTR(pipe, i);
1303 val = I915_READ(reg);
1304 WARN((val & SP_ENABLE),
1305 "sprite %d assertion failure, should be off on pipe %c but is still active\n",
1306 pipe * 2 + i, pipe_name(pipe));
1310 static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv)
1315 if (HAS_PCH_LPT(dev_priv->dev)) {
1316 DRM_DEBUG_DRIVER("LPT does not has PCH refclk, skipping check\n");
1320 val = I915_READ(PCH_DREF_CONTROL);
1321 enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK |
1322 DREF_SUPERSPREAD_SOURCE_MASK));
1323 WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n");
1326 static void assert_transcoder_disabled(struct drm_i915_private *dev_priv,
1333 reg = TRANSCONF(pipe);
1334 val = I915_READ(reg);
1335 enabled = !!(val & TRANS_ENABLE);
1337 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1341 static bool dp_pipe_enabled(struct drm_i915_private *dev_priv,
1342 enum pipe pipe, u32 port_sel, u32 val)
1344 if ((val & DP_PORT_EN) == 0)
1347 if (HAS_PCH_CPT(dev_priv->dev)) {
1348 u32 trans_dp_ctl_reg = TRANS_DP_CTL(pipe);
1349 u32 trans_dp_ctl = I915_READ(trans_dp_ctl_reg);
1350 if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel)
1353 if ((val & DP_PIPE_MASK) != (pipe << 30))
1359 static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv,
1360 enum pipe pipe, u32 val)
1362 if ((val & SDVO_ENABLE) == 0)
1365 if (HAS_PCH_CPT(dev_priv->dev)) {
1366 if ((val & SDVO_PIPE_SEL_MASK_CPT) != SDVO_PIPE_SEL_CPT(pipe))
1369 if ((val & SDVO_PIPE_SEL_MASK) != SDVO_PIPE_SEL(pipe))
1375 static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv,
1376 enum pipe pipe, u32 val)
1378 if ((val & LVDS_PORT_EN) == 0)
1381 if (HAS_PCH_CPT(dev_priv->dev)) {
1382 if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
1385 if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe))
1391 static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv,
1392 enum pipe pipe, u32 val)
1394 if ((val & ADPA_DAC_ENABLE) == 0)
1396 if (HAS_PCH_CPT(dev_priv->dev)) {
1397 if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
1400 if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe))
1406 static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv,
1407 enum pipe pipe, int reg, u32 port_sel)
1409 u32 val = I915_READ(reg);
1410 WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val),
1411 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
1412 reg, pipe_name(pipe));
1414 WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0
1415 && (val & DP_PIPEB_SELECT),
1416 "IBX PCH dp port still using transcoder B\n");
1419 static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv,
1420 enum pipe pipe, int reg)
1422 u32 val = I915_READ(reg);
1423 WARN(hdmi_pipe_enabled(dev_priv, pipe, val),
1424 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
1425 reg, pipe_name(pipe));
1427 WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_ENABLE) == 0
1428 && (val & SDVO_PIPE_B_SELECT),
1429 "IBX PCH hdmi port still using transcoder B\n");
1432 static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv,
1438 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B);
1439 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C);
1440 assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D);
1443 val = I915_READ(reg);
1444 WARN(adpa_pipe_enabled(dev_priv, pipe, val),
1445 "PCH VGA enabled on transcoder %c, should be disabled\n",
1449 val = I915_READ(reg);
1450 WARN(lvds_pipe_enabled(dev_priv, pipe, val),
1451 "PCH LVDS enabled on transcoder %c, should be disabled\n",
1454 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIB);
1455 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIC);
1456 assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMID);
1460 * intel_enable_pll - enable a PLL
1461 * @dev_priv: i915 private structure
1462 * @pipe: pipe PLL to enable
1464 * Enable @pipe's PLL so we can start pumping pixels from a plane. Check to
1465 * make sure the PLL reg is writable first though, since the panel write
1466 * protect mechanism may be enabled.
1468 * Note! This is for pre-ILK only.
1470 * Unfortunately needed by dvo_ns2501 since the dvo depends on it running.
1472 static void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
1477 /* No really, not for ILK+ */
1478 BUG_ON(!IS_VALLEYVIEW(dev_priv->dev) && dev_priv->info->gen >= 5);
1480 /* PLL is protected by panel, make sure we can write it */
1481 if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev))
1482 assert_panel_unlocked(dev_priv, pipe);
1485 val = I915_READ(reg);
1486 val |= DPLL_VCO_ENABLE;
1488 /* We do this three times for luck */
1489 I915_WRITE(reg, val);
1491 udelay(150); /* wait for warmup */
1492 I915_WRITE(reg, val);
1494 udelay(150); /* wait for warmup */
1495 I915_WRITE(reg, val);
1497 udelay(150); /* wait for warmup */
1501 * intel_disable_pll - disable a PLL
1502 * @dev_priv: i915 private structure
1503 * @pipe: pipe PLL to disable
1505 * Disable the PLL for @pipe, making sure the pipe is off first.
1507 * Note! This is for pre-ILK only.
1509 static void intel_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
1514 /* Don't disable pipe A or pipe A PLLs if needed */
1515 if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
1518 /* Make sure the pipe isn't still relying on us */
1519 assert_pipe_disabled(dev_priv, pipe);
1522 val = I915_READ(reg);
1523 val &= ~DPLL_VCO_ENABLE;
1524 I915_WRITE(reg, val);
1530 intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
1531 enum intel_sbi_destination destination)
1535 WARN_ON(!mutex_is_locked(&dev_priv->dpio_lock));
1537 if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_BUSY) == 0,
1539 DRM_ERROR("timeout waiting for SBI to become ready\n");
1543 I915_WRITE(SBI_ADDR, (reg << 16));
1544 I915_WRITE(SBI_DATA, value);
1546 if (destination == SBI_ICLK)
1547 tmp = SBI_CTL_DEST_ICLK | SBI_CTL_OP_CRWR;
1549 tmp = SBI_CTL_DEST_MPHY | SBI_CTL_OP_IOWR;
1550 I915_WRITE(SBI_CTL_STAT, SBI_BUSY | tmp);
1552 if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0,
1554 DRM_ERROR("timeout waiting for SBI to complete write transaction\n");
1560 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
1561 enum intel_sbi_destination destination)
1564 WARN_ON(!mutex_is_locked(&dev_priv->dpio_lock));
1566 if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_BUSY) == 0,
1568 DRM_ERROR("timeout waiting for SBI to become ready\n");
1572 I915_WRITE(SBI_ADDR, (reg << 16));
1574 if (destination == SBI_ICLK)
1575 value = SBI_CTL_DEST_ICLK | SBI_CTL_OP_CRRD;
1577 value = SBI_CTL_DEST_MPHY | SBI_CTL_OP_IORD;
1578 I915_WRITE(SBI_CTL_STAT, value | SBI_BUSY);
1580 if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0,
1582 DRM_ERROR("timeout waiting for SBI to complete read transaction\n");
1586 return I915_READ(SBI_DATA);
1590 * ironlake_enable_pch_pll - enable PCH PLL
1591 * @dev_priv: i915 private structure
1592 * @pipe: pipe PLL to enable
1594 * The PCH PLL needs to be enabled before the PCH transcoder, since it
1595 * drives the transcoder clock.
1597 static void ironlake_enable_pch_pll(struct intel_crtc *intel_crtc)
1599 struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private;
1600 struct intel_pch_pll *pll;
1604 /* PCH PLLs only available on ILK, SNB and IVB */
1605 BUG_ON(dev_priv->info->gen < 5);
1606 pll = intel_crtc->pch_pll;
1610 if (WARN_ON(pll->refcount == 0))
1613 DRM_DEBUG_KMS("enable PCH PLL %x (active %d, on? %d)for crtc %d\n",
1614 pll->pll_reg, pll->active, pll->on,
1615 intel_crtc->base.base.id);
1617 /* PCH refclock must be enabled first */
1618 assert_pch_refclk_enabled(dev_priv);
1620 if (pll->active++ && pll->on) {
1621 assert_pch_pll_enabled(dev_priv, pll, NULL);
1625 DRM_DEBUG_KMS("enabling PCH PLL %x\n", pll->pll_reg);
1628 val = I915_READ(reg);
1629 val |= DPLL_VCO_ENABLE;
1630 I915_WRITE(reg, val);
1637 static void intel_disable_pch_pll(struct intel_crtc *intel_crtc)
1639 struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private;
1640 struct intel_pch_pll *pll = intel_crtc->pch_pll;
1644 /* PCH only available on ILK+ */
1645 BUG_ON(dev_priv->info->gen < 5);
1649 if (WARN_ON(pll->refcount == 0))
1652 DRM_DEBUG_KMS("disable PCH PLL %x (active %d, on? %d) for crtc %d\n",
1653 pll->pll_reg, pll->active, pll->on,
1654 intel_crtc->base.base.id);
1656 if (WARN_ON(pll->active == 0)) {
1657 assert_pch_pll_disabled(dev_priv, pll, NULL);
1661 if (--pll->active) {
1662 assert_pch_pll_enabled(dev_priv, pll, NULL);
1666 DRM_DEBUG_KMS("disabling PCH PLL %x\n", pll->pll_reg);
1668 /* Make sure transcoder isn't still depending on us */
1669 assert_transcoder_disabled(dev_priv, intel_crtc->pipe);
1672 val = I915_READ(reg);
1673 val &= ~DPLL_VCO_ENABLE;
1674 I915_WRITE(reg, val);
1681 static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv,
1684 struct drm_device *dev = dev_priv->dev;
1685 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
1686 uint32_t reg, val, pipeconf_val;
1688 /* PCH only available on ILK+ */
1689 BUG_ON(dev_priv->info->gen < 5);
1691 /* Make sure PCH DPLL is enabled */
1692 assert_pch_pll_enabled(dev_priv,
1693 to_intel_crtc(crtc)->pch_pll,
1694 to_intel_crtc(crtc));
1696 /* FDI must be feeding us bits for PCH ports */
1697 assert_fdi_tx_enabled(dev_priv, pipe);
1698 assert_fdi_rx_enabled(dev_priv, pipe);
1700 if (HAS_PCH_CPT(dev)) {
1701 /* Workaround: Set the timing override bit before enabling the
1702 * pch transcoder. */
1703 reg = TRANS_CHICKEN2(pipe);
1704 val = I915_READ(reg);
1705 val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
1706 I915_WRITE(reg, val);
1709 reg = TRANSCONF(pipe);
1710 val = I915_READ(reg);
1711 pipeconf_val = I915_READ(PIPECONF(pipe));
1713 if (HAS_PCH_IBX(dev_priv->dev)) {
1715 * make the BPC in transcoder be consistent with
1716 * that in pipeconf reg.
1718 val &= ~PIPECONF_BPC_MASK;
1719 val |= pipeconf_val & PIPECONF_BPC_MASK;
1722 val &= ~TRANS_INTERLACE_MASK;
1723 if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK)
1724 if (HAS_PCH_IBX(dev_priv->dev) &&
1725 intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO))
1726 val |= TRANS_LEGACY_INTERLACED_ILK;
1728 val |= TRANS_INTERLACED;
1730 val |= TRANS_PROGRESSIVE;
1732 I915_WRITE(reg, val | TRANS_ENABLE);
1733 if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100))
1734 DRM_ERROR("failed to enable transcoder %d\n", pipe);
1737 static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv,
1738 enum transcoder cpu_transcoder)
1740 u32 val, pipeconf_val;
1742 /* PCH only available on ILK+ */
1743 BUG_ON(dev_priv->info->gen < 5);
1745 /* FDI must be feeding us bits for PCH ports */
1746 assert_fdi_tx_enabled(dev_priv, (enum pipe) cpu_transcoder);
1747 assert_fdi_rx_enabled(dev_priv, TRANSCODER_A);
1749 /* Workaround: set timing override bit. */
1750 val = I915_READ(_TRANSA_CHICKEN2);
1751 val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
1752 I915_WRITE(_TRANSA_CHICKEN2, val);
1755 pipeconf_val = I915_READ(PIPECONF(cpu_transcoder));
1757 if ((pipeconf_val & PIPECONF_INTERLACE_MASK_HSW) ==
1758 PIPECONF_INTERLACED_ILK)
1759 val |= TRANS_INTERLACED;
1761 val |= TRANS_PROGRESSIVE;
1763 I915_WRITE(TRANSCONF(TRANSCODER_A), val);
1764 if (wait_for(I915_READ(_TRANSACONF) & TRANS_STATE_ENABLE, 100))
1765 DRM_ERROR("Failed to enable PCH transcoder\n");
1768 static void ironlake_disable_pch_transcoder(struct drm_i915_private *dev_priv,
1771 struct drm_device *dev = dev_priv->dev;
1774 /* FDI relies on the transcoder */
1775 assert_fdi_tx_disabled(dev_priv, pipe);
1776 assert_fdi_rx_disabled(dev_priv, pipe);
1778 /* Ports must be off as well */
1779 assert_pch_ports_disabled(dev_priv, pipe);
1781 reg = TRANSCONF(pipe);
1782 val = I915_READ(reg);
1783 val &= ~TRANS_ENABLE;
1784 I915_WRITE(reg, val);
1785 /* wait for PCH transcoder off, transcoder state */
1786 if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50))
1787 DRM_ERROR("failed to disable transcoder %d\n", pipe);
1789 if (!HAS_PCH_IBX(dev)) {
1790 /* Workaround: Clear the timing override chicken bit again. */
1791 reg = TRANS_CHICKEN2(pipe);
1792 val = I915_READ(reg);
1793 val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE;
1794 I915_WRITE(reg, val);
1798 static void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv)
1802 val = I915_READ(_TRANSACONF);
1803 val &= ~TRANS_ENABLE;
1804 I915_WRITE(_TRANSACONF, val);
1805 /* wait for PCH transcoder off, transcoder state */
1806 if (wait_for((I915_READ(_TRANSACONF) & TRANS_STATE_ENABLE) == 0, 50))
1807 DRM_ERROR("Failed to disable PCH transcoder\n");
1809 /* Workaround: clear timing override bit. */
1810 val = I915_READ(_TRANSA_CHICKEN2);
1811 val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE;
1812 I915_WRITE(_TRANSA_CHICKEN2, val);
1816 * intel_enable_pipe - enable a pipe, asserting requirements
1817 * @dev_priv: i915 private structure
1818 * @pipe: pipe to enable
1819 * @pch_port: on ILK+, is this pipe driving a PCH port or not
1821 * Enable @pipe, making sure that various hardware specific requirements
1822 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
1824 * @pipe should be %PIPE_A or %PIPE_B.
1826 * Will wait until the pipe is actually running (i.e. first vblank) before
1829 static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
1832 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1834 enum pipe pch_transcoder;
1838 if (HAS_PCH_LPT(dev_priv->dev))
1839 pch_transcoder = TRANSCODER_A;
1841 pch_transcoder = pipe;
1844 * A pipe without a PLL won't actually be able to drive bits from
1845 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
1848 if (!HAS_PCH_SPLIT(dev_priv->dev))
1849 assert_pll_enabled(dev_priv, pipe);
1852 /* if driving the PCH, we need FDI enabled */
1853 assert_fdi_rx_pll_enabled(dev_priv, pch_transcoder);
1854 assert_fdi_tx_pll_enabled(dev_priv,
1855 (enum pipe) cpu_transcoder);
1857 /* FIXME: assert CPU port conditions for SNB+ */
1860 reg = PIPECONF(cpu_transcoder);
1861 val = I915_READ(reg);
1862 if (val & PIPECONF_ENABLE)
1865 I915_WRITE(reg, val | PIPECONF_ENABLE);
1866 intel_wait_for_vblank(dev_priv->dev, pipe);
1870 * intel_disable_pipe - disable a pipe, asserting requirements
1871 * @dev_priv: i915 private structure
1872 * @pipe: pipe to disable
1874 * Disable @pipe, making sure that various hardware specific requirements
1875 * are met, if applicable, e.g. plane disabled, panel fitter off, etc.
1877 * @pipe should be %PIPE_A or %PIPE_B.
1879 * Will wait until the pipe has shut down before returning.
1881 static void intel_disable_pipe(struct drm_i915_private *dev_priv,
1884 enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
1890 * Make sure planes won't keep trying to pump pixels to us,
1891 * or we might hang the display.
1893 assert_planes_disabled(dev_priv, pipe);
1894 assert_sprites_disabled(dev_priv, pipe);
1896 /* Don't disable pipe A or pipe A PLLs if needed */
1897 if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
1900 reg = PIPECONF(cpu_transcoder);
1901 val = I915_READ(reg);
1902 if ((val & PIPECONF_ENABLE) == 0)
1905 I915_WRITE(reg, val & ~PIPECONF_ENABLE);
1906 intel_wait_for_pipe_off(dev_priv->dev, pipe);
1910 * Plane regs are double buffered, going from enabled->disabled needs a
1911 * trigger in order to latch. The display address reg provides this.
1913 void intel_flush_display_plane(struct drm_i915_private *dev_priv,
1916 if (dev_priv->info->gen >= 4)
1917 I915_WRITE(DSPSURF(plane), I915_READ(DSPSURF(plane)));
1919 I915_WRITE(DSPADDR(plane), I915_READ(DSPADDR(plane)));
1923 * intel_enable_plane - enable a display plane on a given pipe
1924 * @dev_priv: i915 private structure
1925 * @plane: plane to enable
1926 * @pipe: pipe being fed
1928 * Enable @plane on @pipe, making sure that @pipe is running first.
1930 static void intel_enable_plane(struct drm_i915_private *dev_priv,
1931 enum plane plane, enum pipe pipe)
1936 /* If the pipe isn't enabled, we can't pump pixels and may hang */
1937 assert_pipe_enabled(dev_priv, pipe);
1939 reg = DSPCNTR(plane);
1940 val = I915_READ(reg);
1941 if (val & DISPLAY_PLANE_ENABLE)
1944 I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE);
1945 intel_flush_display_plane(dev_priv, plane);
1946 intel_wait_for_vblank(dev_priv->dev, pipe);
1950 * intel_disable_plane - disable a display plane
1951 * @dev_priv: i915 private structure
1952 * @plane: plane to disable
1953 * @pipe: pipe consuming the data
1955 * Disable @plane; should be an independent operation.
1957 static void intel_disable_plane(struct drm_i915_private *dev_priv,
1958 enum plane plane, enum pipe pipe)
1963 reg = DSPCNTR(plane);
1964 val = I915_READ(reg);
1965 if ((val & DISPLAY_PLANE_ENABLE) == 0)
1968 I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE);
1969 intel_flush_display_plane(dev_priv, plane);
1970 intel_wait_for_vblank(dev_priv->dev, pipe);
1973 static bool need_vtd_wa(struct drm_device *dev)
1975 #ifdef CONFIG_INTEL_IOMMU
1976 if (INTEL_INFO(dev)->gen >= 6 && intel_iommu_gfx_mapped)
1983 intel_pin_and_fence_fb_obj(struct drm_device *dev,
1984 struct drm_i915_gem_object *obj,
1985 struct intel_ring_buffer *pipelined)
1987 struct drm_i915_private *dev_priv = dev->dev_private;
1991 switch (obj->tiling_mode) {
1992 case I915_TILING_NONE:
1993 if (IS_BROADWATER(dev) || IS_CRESTLINE(dev))
1994 alignment = 128 * 1024;
1995 else if (INTEL_INFO(dev)->gen >= 4)
1996 alignment = 4 * 1024;
1998 alignment = 64 * 1024;
2001 /* pin() will align the object as required by fence */
2005 /* Despite that we check this in framebuffer_init userspace can
2006 * screw us over and change the tiling after the fact. Only
2007 * pinned buffers can't change their tiling. */
2008 DRM_DEBUG_DRIVER("Y tiled not allowed for scan out buffers\n");
2014 /* Note that the w/a also requires 64 PTE of padding following the
2015 * bo. We currently fill all unused PTE with the shadow page and so
2016 * we should always have valid PTE following the scanout preventing
2019 if (need_vtd_wa(dev) && alignment < 256 * 1024)
2020 alignment = 256 * 1024;
2022 dev_priv->mm.interruptible = false;
2023 ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined);
2025 goto err_interruptible;
2027 /* Install a fence for tiled scan-out. Pre-i965 always needs a
2028 * fence, whereas 965+ only requires a fence if using
2029 * framebuffer compression. For simplicity, we always install
2030 * a fence as the cost is not that onerous.
2032 ret = i915_gem_object_get_fence(obj);
2036 i915_gem_object_pin_fence(obj);
2038 dev_priv->mm.interruptible = true;
2042 i915_gem_object_unpin(obj);
2044 dev_priv->mm.interruptible = true;
2048 void intel_unpin_fb_obj(struct drm_i915_gem_object *obj)
2050 i915_gem_object_unpin_fence(obj);
2051 i915_gem_object_unpin(obj);
2054 /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel
2055 * is assumed to be a power-of-two. */
2056 unsigned long intel_gen4_compute_page_offset(int *x, int *y,
2057 unsigned int tiling_mode,
2061 if (tiling_mode != I915_TILING_NONE) {
2062 unsigned int tile_rows, tiles;
2067 tiles = *x / (512/cpp);
2070 return tile_rows * pitch * 8 + tiles * 4096;
2072 unsigned int offset;
2074 offset = *y * pitch + *x * cpp;
2076 *x = (offset & 4095) / cpp;
2077 return offset & -4096;
2081 static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb,
2084 struct drm_device *dev = crtc->dev;
2085 struct drm_i915_private *dev_priv = dev->dev_private;
2086 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2087 struct intel_framebuffer *intel_fb;
2088 struct drm_i915_gem_object *obj;
2089 int plane = intel_crtc->plane;
2090 unsigned long linear_offset;
2099 DRM_ERROR("Can't update plane %d in SAREA\n", plane);
2103 intel_fb = to_intel_framebuffer(fb);
2104 obj = intel_fb->obj;
2106 reg = DSPCNTR(plane);
2107 dspcntr = I915_READ(reg);
2108 /* Mask out pixel format bits in case we change it */
2109 dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
2110 switch (fb->pixel_format) {
2112 dspcntr |= DISPPLANE_8BPP;
2114 case DRM_FORMAT_XRGB1555:
2115 case DRM_FORMAT_ARGB1555:
2116 dspcntr |= DISPPLANE_BGRX555;
2118 case DRM_FORMAT_RGB565:
2119 dspcntr |= DISPPLANE_BGRX565;
2121 case DRM_FORMAT_XRGB8888:
2122 case DRM_FORMAT_ARGB8888:
2123 dspcntr |= DISPPLANE_BGRX888;
2125 case DRM_FORMAT_XBGR8888:
2126 case DRM_FORMAT_ABGR8888:
2127 dspcntr |= DISPPLANE_RGBX888;
2129 case DRM_FORMAT_XRGB2101010:
2130 case DRM_FORMAT_ARGB2101010:
2131 dspcntr |= DISPPLANE_BGRX101010;
2133 case DRM_FORMAT_XBGR2101010:
2134 case DRM_FORMAT_ABGR2101010:
2135 dspcntr |= DISPPLANE_RGBX101010;
2141 if (INTEL_INFO(dev)->gen >= 4) {
2142 if (obj->tiling_mode != I915_TILING_NONE)
2143 dspcntr |= DISPPLANE_TILED;
2145 dspcntr &= ~DISPPLANE_TILED;
2148 I915_WRITE(reg, dspcntr);
2150 linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
2152 if (INTEL_INFO(dev)->gen >= 4) {
2153 intel_crtc->dspaddr_offset =
2154 intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
2155 fb->bits_per_pixel / 8,
2157 linear_offset -= intel_crtc->dspaddr_offset;
2159 intel_crtc->dspaddr_offset = linear_offset;
2162 DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n",
2163 obj->gtt_offset, linear_offset, x, y, fb->pitches[0]);
2164 I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
2165 if (INTEL_INFO(dev)->gen >= 4) {
2166 I915_MODIFY_DISPBASE(DSPSURF(plane),
2167 obj->gtt_offset + intel_crtc->dspaddr_offset);
2168 I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
2169 I915_WRITE(DSPLINOFF(plane), linear_offset);
2171 I915_WRITE(DSPADDR(plane), obj->gtt_offset + linear_offset);
2177 static int ironlake_update_plane(struct drm_crtc *crtc,
2178 struct drm_framebuffer *fb, int x, int y)
2180 struct drm_device *dev = crtc->dev;
2181 struct drm_i915_private *dev_priv = dev->dev_private;
2182 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2183 struct intel_framebuffer *intel_fb;
2184 struct drm_i915_gem_object *obj;
2185 int plane = intel_crtc->plane;
2186 unsigned long linear_offset;
2196 DRM_ERROR("Can't update plane %d in SAREA\n", plane);
2200 intel_fb = to_intel_framebuffer(fb);
2201 obj = intel_fb->obj;
2203 reg = DSPCNTR(plane);
2204 dspcntr = I915_READ(reg);
2205 /* Mask out pixel format bits in case we change it */
2206 dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
2207 switch (fb->pixel_format) {
2209 dspcntr |= DISPPLANE_8BPP;
2211 case DRM_FORMAT_RGB565:
2212 dspcntr |= DISPPLANE_BGRX565;
2214 case DRM_FORMAT_XRGB8888:
2215 case DRM_FORMAT_ARGB8888:
2216 dspcntr |= DISPPLANE_BGRX888;
2218 case DRM_FORMAT_XBGR8888:
2219 case DRM_FORMAT_ABGR8888:
2220 dspcntr |= DISPPLANE_RGBX888;
2222 case DRM_FORMAT_XRGB2101010:
2223 case DRM_FORMAT_ARGB2101010:
2224 dspcntr |= DISPPLANE_BGRX101010;
2226 case DRM_FORMAT_XBGR2101010:
2227 case DRM_FORMAT_ABGR2101010:
2228 dspcntr |= DISPPLANE_RGBX101010;
2234 if (obj->tiling_mode != I915_TILING_NONE)
2235 dspcntr |= DISPPLANE_TILED;
2237 dspcntr &= ~DISPPLANE_TILED;
2240 dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
2242 I915_WRITE(reg, dspcntr);
2244 linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
2245 intel_crtc->dspaddr_offset =
2246 intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
2247 fb->bits_per_pixel / 8,
2249 linear_offset -= intel_crtc->dspaddr_offset;
2251 DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n",
2252 obj->gtt_offset, linear_offset, x, y, fb->pitches[0]);
2253 I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
2254 I915_MODIFY_DISPBASE(DSPSURF(plane),
2255 obj->gtt_offset + intel_crtc->dspaddr_offset);
2256 if (IS_HASWELL(dev)) {
2257 I915_WRITE(DSPOFFSET(plane), (y << 16) | x);
2259 I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
2260 I915_WRITE(DSPLINOFF(plane), linear_offset);
2267 /* Assume fb object is pinned & idle & fenced and just update base pointers */
2269 intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
2270 int x, int y, enum mode_set_atomic state)
2272 struct drm_device *dev = crtc->dev;
2273 struct drm_i915_private *dev_priv = dev->dev_private;
2275 if (dev_priv->display.disable_fbc)
2276 dev_priv->display.disable_fbc(dev);
2277 intel_increase_pllclock(crtc);
2279 return dev_priv->display.update_plane(crtc, fb, x, y);
2282 void intel_display_handle_reset(struct drm_device *dev)
2284 struct drm_i915_private *dev_priv = dev->dev_private;
2285 struct drm_crtc *crtc;
2288 * Flips in the rings have been nuked by the reset,
2289 * so complete all pending flips so that user space
2290 * will get its events and not get stuck.
2292 * Also update the base address of all primary
2293 * planes to the the last fb to make sure we're
2294 * showing the correct fb after a reset.
2296 * Need to make two loops over the crtcs so that we
2297 * don't try to grab a crtc mutex before the
2298 * pending_flip_queue really got woken up.
2301 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2302 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2303 enum plane plane = intel_crtc->plane;
2305 intel_prepare_page_flip(dev, plane);
2306 intel_finish_page_flip_plane(dev, plane);
2309 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2310 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2312 mutex_lock(&crtc->mutex);
2313 if (intel_crtc->active)
2314 dev_priv->display.update_plane(crtc, crtc->fb,
2316 mutex_unlock(&crtc->mutex);
2321 intel_finish_fb(struct drm_framebuffer *old_fb)
2323 struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj;
2324 struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
2325 bool was_interruptible = dev_priv->mm.interruptible;
2328 /* Big Hammer, we also need to ensure that any pending
2329 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
2330 * current scanout is retired before unpinning the old
2333 * This should only fail upon a hung GPU, in which case we
2334 * can safely continue.
2336 dev_priv->mm.interruptible = false;
2337 ret = i915_gem_object_finish_gpu(obj);
2338 dev_priv->mm.interruptible = was_interruptible;
2343 static void intel_crtc_update_sarea_pos(struct drm_crtc *crtc, int x, int y)
2345 struct drm_device *dev = crtc->dev;
2346 struct drm_i915_master_private *master_priv;
2347 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2349 if (!dev->primary->master)
2352 master_priv = dev->primary->master->driver_priv;
2353 if (!master_priv->sarea_priv)
2356 switch (intel_crtc->pipe) {
2358 master_priv->sarea_priv->pipeA_x = x;
2359 master_priv->sarea_priv->pipeA_y = y;
2362 master_priv->sarea_priv->pipeB_x = x;
2363 master_priv->sarea_priv->pipeB_y = y;
2371 intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
2372 struct drm_framebuffer *fb)
2374 struct drm_device *dev = crtc->dev;
2375 struct drm_i915_private *dev_priv = dev->dev_private;
2376 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2377 struct drm_framebuffer *old_fb;
2382 DRM_ERROR("No FB bound\n");
2386 if (intel_crtc->plane > INTEL_INFO(dev)->num_pipes) {
2387 DRM_ERROR("no plane for crtc: plane %d, num_pipes %d\n",
2389 INTEL_INFO(dev)->num_pipes);
2393 mutex_lock(&dev->struct_mutex);
2394 ret = intel_pin_and_fence_fb_obj(dev,
2395 to_intel_framebuffer(fb)->obj,
2398 mutex_unlock(&dev->struct_mutex);
2399 DRM_ERROR("pin & fence failed\n");
2403 ret = dev_priv->display.update_plane(crtc, fb, x, y);
2405 intel_unpin_fb_obj(to_intel_framebuffer(fb)->obj);
2406 mutex_unlock(&dev->struct_mutex);
2407 DRM_ERROR("failed to update base address\n");
2417 intel_wait_for_vblank(dev, intel_crtc->pipe);
2418 intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj);
2421 intel_update_fbc(dev);
2422 mutex_unlock(&dev->struct_mutex);
2424 intel_crtc_update_sarea_pos(crtc, x, y);
2429 static void intel_fdi_normal_train(struct drm_crtc *crtc)
2431 struct drm_device *dev = crtc->dev;
2432 struct drm_i915_private *dev_priv = dev->dev_private;
2433 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2434 int pipe = intel_crtc->pipe;
2437 /* enable normal train */
2438 reg = FDI_TX_CTL(pipe);
2439 temp = I915_READ(reg);
2440 if (IS_IVYBRIDGE(dev)) {
2441 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
2442 temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE;
2444 temp &= ~FDI_LINK_TRAIN_NONE;
2445 temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
2447 I915_WRITE(reg, temp);
2449 reg = FDI_RX_CTL(pipe);
2450 temp = I915_READ(reg);
2451 if (HAS_PCH_CPT(dev)) {
2452 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2453 temp |= FDI_LINK_TRAIN_NORMAL_CPT;
2455 temp &= ~FDI_LINK_TRAIN_NONE;
2456 temp |= FDI_LINK_TRAIN_NONE;
2458 I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE);
2460 /* wait one idle pattern time */
2464 /* IVB wants error correction enabled */
2465 if (IS_IVYBRIDGE(dev))
2466 I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE |
2467 FDI_FE_ERRC_ENABLE);
2470 static void ivb_modeset_global_resources(struct drm_device *dev)
2472 struct drm_i915_private *dev_priv = dev->dev_private;
2473 struct intel_crtc *pipe_B_crtc =
2474 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]);
2475 struct intel_crtc *pipe_C_crtc =
2476 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_C]);
2479 /* When everything is off disable fdi C so that we could enable fdi B
2480 * with all lanes. XXX: This misses the case where a pipe is not using
2481 * any pch resources and so doesn't need any fdi lanes. */
2482 if (!pipe_B_crtc->base.enabled && !pipe_C_crtc->base.enabled) {
2483 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
2484 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
2486 temp = I915_READ(SOUTH_CHICKEN1);
2487 temp &= ~FDI_BC_BIFURCATION_SELECT;
2488 DRM_DEBUG_KMS("disabling fdi C rx\n");
2489 I915_WRITE(SOUTH_CHICKEN1, temp);
2493 /* The FDI link training functions for ILK/Ibexpeak. */
2494 static void ironlake_fdi_link_train(struct drm_crtc *crtc)
2496 struct drm_device *dev = crtc->dev;
2497 struct drm_i915_private *dev_priv = dev->dev_private;
2498 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2499 int pipe = intel_crtc->pipe;
2500 int plane = intel_crtc->plane;
2501 u32 reg, temp, tries;
2503 /* FDI needs bits from pipe & plane first */
2504 assert_pipe_enabled(dev_priv, pipe);
2505 assert_plane_enabled(dev_priv, plane);
2507 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2509 reg = FDI_RX_IMR(pipe);
2510 temp = I915_READ(reg);
2511 temp &= ~FDI_RX_SYMBOL_LOCK;
2512 temp &= ~FDI_RX_BIT_LOCK;
2513 I915_WRITE(reg, temp);
2517 /* enable CPU FDI TX and PCH FDI RX */
2518 reg = FDI_TX_CTL(pipe);
2519 temp = I915_READ(reg);
2521 temp |= (intel_crtc->fdi_lanes - 1) << 19;
2522 temp &= ~FDI_LINK_TRAIN_NONE;
2523 temp |= FDI_LINK_TRAIN_PATTERN_1;
2524 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2526 reg = FDI_RX_CTL(pipe);
2527 temp = I915_READ(reg);
2528 temp &= ~FDI_LINK_TRAIN_NONE;
2529 temp |= FDI_LINK_TRAIN_PATTERN_1;
2530 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2535 /* Ironlake workaround, enable clock pointer after FDI enable*/
2536 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
2537 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR |
2538 FDI_RX_PHASE_SYNC_POINTER_EN);
2540 reg = FDI_RX_IIR(pipe);
2541 for (tries = 0; tries < 5; tries++) {
2542 temp = I915_READ(reg);
2543 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2545 if ((temp & FDI_RX_BIT_LOCK)) {
2546 DRM_DEBUG_KMS("FDI train 1 done.\n");
2547 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2552 DRM_ERROR("FDI train 1 fail!\n");
2555 reg = FDI_TX_CTL(pipe);
2556 temp = I915_READ(reg);
2557 temp &= ~FDI_LINK_TRAIN_NONE;
2558 temp |= FDI_LINK_TRAIN_PATTERN_2;
2559 I915_WRITE(reg, temp);
2561 reg = FDI_RX_CTL(pipe);
2562 temp = I915_READ(reg);
2563 temp &= ~FDI_LINK_TRAIN_NONE;
2564 temp |= FDI_LINK_TRAIN_PATTERN_2;
2565 I915_WRITE(reg, temp);
2570 reg = FDI_RX_IIR(pipe);
2571 for (tries = 0; tries < 5; tries++) {
2572 temp = I915_READ(reg);
2573 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2575 if (temp & FDI_RX_SYMBOL_LOCK) {
2576 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2577 DRM_DEBUG_KMS("FDI train 2 done.\n");
2582 DRM_ERROR("FDI train 2 fail!\n");
2584 DRM_DEBUG_KMS("FDI train done\n");
2588 static const int snb_b_fdi_train_param[] = {
2589 FDI_LINK_TRAIN_400MV_0DB_SNB_B,
2590 FDI_LINK_TRAIN_400MV_6DB_SNB_B,
2591 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B,
2592 FDI_LINK_TRAIN_800MV_0DB_SNB_B,
2595 /* The FDI link training functions for SNB/Cougarpoint. */
2596 static void gen6_fdi_link_train(struct drm_crtc *crtc)
2598 struct drm_device *dev = crtc->dev;
2599 struct drm_i915_private *dev_priv = dev->dev_private;
2600 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2601 int pipe = intel_crtc->pipe;
2602 u32 reg, temp, i, retry;
2604 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2606 reg = FDI_RX_IMR(pipe);
2607 temp = I915_READ(reg);
2608 temp &= ~FDI_RX_SYMBOL_LOCK;
2609 temp &= ~FDI_RX_BIT_LOCK;
2610 I915_WRITE(reg, temp);
2615 /* enable CPU FDI TX and PCH FDI RX */
2616 reg = FDI_TX_CTL(pipe);
2617 temp = I915_READ(reg);
2619 temp |= (intel_crtc->fdi_lanes - 1) << 19;
2620 temp &= ~FDI_LINK_TRAIN_NONE;
2621 temp |= FDI_LINK_TRAIN_PATTERN_1;
2622 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2624 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2625 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2627 I915_WRITE(FDI_RX_MISC(pipe),
2628 FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
2630 reg = FDI_RX_CTL(pipe);
2631 temp = I915_READ(reg);
2632 if (HAS_PCH_CPT(dev)) {
2633 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2634 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2636 temp &= ~FDI_LINK_TRAIN_NONE;
2637 temp |= FDI_LINK_TRAIN_PATTERN_1;
2639 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2644 for (i = 0; i < 4; i++) {
2645 reg = FDI_TX_CTL(pipe);
2646 temp = I915_READ(reg);
2647 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2648 temp |= snb_b_fdi_train_param[i];
2649 I915_WRITE(reg, temp);
2654 for (retry = 0; retry < 5; retry++) {
2655 reg = FDI_RX_IIR(pipe);
2656 temp = I915_READ(reg);
2657 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2658 if (temp & FDI_RX_BIT_LOCK) {
2659 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2660 DRM_DEBUG_KMS("FDI train 1 done.\n");
2669 DRM_ERROR("FDI train 1 fail!\n");
2672 reg = FDI_TX_CTL(pipe);
2673 temp = I915_READ(reg);
2674 temp &= ~FDI_LINK_TRAIN_NONE;
2675 temp |= FDI_LINK_TRAIN_PATTERN_2;
2677 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2679 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2681 I915_WRITE(reg, temp);
2683 reg = FDI_RX_CTL(pipe);
2684 temp = I915_READ(reg);
2685 if (HAS_PCH_CPT(dev)) {
2686 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2687 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
2689 temp &= ~FDI_LINK_TRAIN_NONE;
2690 temp |= FDI_LINK_TRAIN_PATTERN_2;
2692 I915_WRITE(reg, temp);
2697 for (i = 0; i < 4; i++) {
2698 reg = FDI_TX_CTL(pipe);
2699 temp = I915_READ(reg);
2700 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2701 temp |= snb_b_fdi_train_param[i];
2702 I915_WRITE(reg, temp);
2707 for (retry = 0; retry < 5; retry++) {
2708 reg = FDI_RX_IIR(pipe);
2709 temp = I915_READ(reg);
2710 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2711 if (temp & FDI_RX_SYMBOL_LOCK) {
2712 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2713 DRM_DEBUG_KMS("FDI train 2 done.\n");
2722 DRM_ERROR("FDI train 2 fail!\n");
2724 DRM_DEBUG_KMS("FDI train done.\n");
2727 /* Manual link training for Ivy Bridge A0 parts */
2728 static void ivb_manual_fdi_link_train(struct drm_crtc *crtc)
2730 struct drm_device *dev = crtc->dev;
2731 struct drm_i915_private *dev_priv = dev->dev_private;
2732 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2733 int pipe = intel_crtc->pipe;
2736 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2738 reg = FDI_RX_IMR(pipe);
2739 temp = I915_READ(reg);
2740 temp &= ~FDI_RX_SYMBOL_LOCK;
2741 temp &= ~FDI_RX_BIT_LOCK;
2742 I915_WRITE(reg, temp);
2747 DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
2748 I915_READ(FDI_RX_IIR(pipe)));
2750 /* enable CPU FDI TX and PCH FDI RX */
2751 reg = FDI_TX_CTL(pipe);
2752 temp = I915_READ(reg);
2754 temp |= (intel_crtc->fdi_lanes - 1) << 19;
2755 temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB);
2756 temp |= FDI_LINK_TRAIN_PATTERN_1_IVB;
2757 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2758 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2759 temp |= FDI_COMPOSITE_SYNC;
2760 I915_WRITE(reg, temp | FDI_TX_ENABLE);
2762 I915_WRITE(FDI_RX_MISC(pipe),
2763 FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
2765 reg = FDI_RX_CTL(pipe);
2766 temp = I915_READ(reg);
2767 temp &= ~FDI_LINK_TRAIN_AUTO;
2768 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2769 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2770 temp |= FDI_COMPOSITE_SYNC;
2771 I915_WRITE(reg, temp | FDI_RX_ENABLE);
2776 for (i = 0; i < 4; i++) {
2777 reg = FDI_TX_CTL(pipe);
2778 temp = I915_READ(reg);
2779 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2780 temp |= snb_b_fdi_train_param[i];
2781 I915_WRITE(reg, temp);
2786 reg = FDI_RX_IIR(pipe);
2787 temp = I915_READ(reg);
2788 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2790 if (temp & FDI_RX_BIT_LOCK ||
2791 (I915_READ(reg) & FDI_RX_BIT_LOCK)) {
2792 I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
2793 DRM_DEBUG_KMS("FDI train 1 done, level %i.\n", i);
2798 DRM_ERROR("FDI train 1 fail!\n");
2801 reg = FDI_TX_CTL(pipe);
2802 temp = I915_READ(reg);
2803 temp &= ~FDI_LINK_TRAIN_NONE_IVB;
2804 temp |= FDI_LINK_TRAIN_PATTERN_2_IVB;
2805 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2806 temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
2807 I915_WRITE(reg, temp);
2809 reg = FDI_RX_CTL(pipe);
2810 temp = I915_READ(reg);
2811 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2812 temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
2813 I915_WRITE(reg, temp);
2818 for (i = 0; i < 4; i++) {
2819 reg = FDI_TX_CTL(pipe);
2820 temp = I915_READ(reg);
2821 temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
2822 temp |= snb_b_fdi_train_param[i];
2823 I915_WRITE(reg, temp);
2828 reg = FDI_RX_IIR(pipe);
2829 temp = I915_READ(reg);
2830 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
2832 if (temp & FDI_RX_SYMBOL_LOCK) {
2833 I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
2834 DRM_DEBUG_KMS("FDI train 2 done, level %i.\n", i);
2839 DRM_ERROR("FDI train 2 fail!\n");
2841 DRM_DEBUG_KMS("FDI train done.\n");
2844 static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc)
2846 struct drm_device *dev = intel_crtc->base.dev;
2847 struct drm_i915_private *dev_priv = dev->dev_private;
2848 int pipe = intel_crtc->pipe;
2852 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
2853 reg = FDI_RX_CTL(pipe);
2854 temp = I915_READ(reg);
2855 temp &= ~((0x7 << 19) | (0x7 << 16));
2856 temp |= (intel_crtc->fdi_lanes - 1) << 19;
2857 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
2858 I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE);
2863 /* Switch from Rawclk to PCDclk */
2864 temp = I915_READ(reg);
2865 I915_WRITE(reg, temp | FDI_PCDCLK);
2870 /* Enable CPU FDI TX PLL, always on for Ironlake */
2871 reg = FDI_TX_CTL(pipe);
2872 temp = I915_READ(reg);
2873 if ((temp & FDI_TX_PLL_ENABLE) == 0) {
2874 I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE);
2881 static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc)
2883 struct drm_device *dev = intel_crtc->base.dev;
2884 struct drm_i915_private *dev_priv = dev->dev_private;
2885 int pipe = intel_crtc->pipe;
2888 /* Switch from PCDclk to Rawclk */
2889 reg = FDI_RX_CTL(pipe);
2890 temp = I915_READ(reg);
2891 I915_WRITE(reg, temp & ~FDI_PCDCLK);
2893 /* Disable CPU FDI TX PLL */
2894 reg = FDI_TX_CTL(pipe);
2895 temp = I915_READ(reg);
2896 I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE);
2901 reg = FDI_RX_CTL(pipe);
2902 temp = I915_READ(reg);
2903 I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE);
2905 /* Wait for the clocks to turn off. */
2910 static void ironlake_fdi_disable(struct drm_crtc *crtc)
2912 struct drm_device *dev = crtc->dev;
2913 struct drm_i915_private *dev_priv = dev->dev_private;
2914 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2915 int pipe = intel_crtc->pipe;
2918 /* disable CPU FDI tx and PCH FDI rx */
2919 reg = FDI_TX_CTL(pipe);
2920 temp = I915_READ(reg);
2921 I915_WRITE(reg, temp & ~FDI_TX_ENABLE);
2924 reg = FDI_RX_CTL(pipe);
2925 temp = I915_READ(reg);
2926 temp &= ~(0x7 << 16);
2927 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
2928 I915_WRITE(reg, temp & ~FDI_RX_ENABLE);
2933 /* Ironlake workaround, disable clock pointer after downing FDI */
2934 if (HAS_PCH_IBX(dev)) {
2935 I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
2938 /* still set train pattern 1 */
2939 reg = FDI_TX_CTL(pipe);
2940 temp = I915_READ(reg);
2941 temp &= ~FDI_LINK_TRAIN_NONE;
2942 temp |= FDI_LINK_TRAIN_PATTERN_1;
2943 I915_WRITE(reg, temp);
2945 reg = FDI_RX_CTL(pipe);
2946 temp = I915_READ(reg);
2947 if (HAS_PCH_CPT(dev)) {
2948 temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
2949 temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
2951 temp &= ~FDI_LINK_TRAIN_NONE;
2952 temp |= FDI_LINK_TRAIN_PATTERN_1;
2954 /* BPC in FDI rx is consistent with that in PIPECONF */
2955 temp &= ~(0x07 << 16);
2956 temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
2957 I915_WRITE(reg, temp);
2963 static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc)
2965 struct drm_device *dev = crtc->dev;
2966 struct drm_i915_private *dev_priv = dev->dev_private;
2967 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
2968 unsigned long flags;
2971 if (i915_reset_in_progress(&dev_priv->gpu_error) ||
2972 intel_crtc->reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter))
2975 spin_lock_irqsave(&dev->event_lock, flags);
2976 pending = to_intel_crtc(crtc)->unpin_work != NULL;
2977 spin_unlock_irqrestore(&dev->event_lock, flags);
2982 static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
2984 struct drm_device *dev = crtc->dev;
2985 struct drm_i915_private *dev_priv = dev->dev_private;
2987 if (crtc->fb == NULL)
2990 WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue));
2992 wait_event(dev_priv->pending_flip_queue,
2993 !intel_crtc_has_pending_flip(crtc));
2995 mutex_lock(&dev->struct_mutex);
2996 intel_finish_fb(crtc->fb);
2997 mutex_unlock(&dev->struct_mutex);
3000 /* Program iCLKIP clock to the desired frequency */
3001 static void lpt_program_iclkip(struct drm_crtc *crtc)
3003 struct drm_device *dev = crtc->dev;
3004 struct drm_i915_private *dev_priv = dev->dev_private;
3005 u32 divsel, phaseinc, auxdiv, phasedir = 0;
3008 mutex_lock(&dev_priv->dpio_lock);
3010 /* It is necessary to ungate the pixclk gate prior to programming
3011 * the divisors, and gate it back when it is done.
3013 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE);
3015 /* Disable SSCCTL */
3016 intel_sbi_write(dev_priv, SBI_SSCCTL6,
3017 intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK) |
3021 /* 20MHz is a corner case which is out of range for the 7-bit divisor */
3022 if (crtc->mode.clock == 20000) {
3027 /* The iCLK virtual clock root frequency is in MHz,
3028 * but the crtc->mode.clock in in KHz. To get the divisors,
3029 * it is necessary to divide one by another, so we
3030 * convert the virtual clock precision to KHz here for higher
3033 u32 iclk_virtual_root_freq = 172800 * 1000;
3034 u32 iclk_pi_range = 64;
3035 u32 desired_divisor, msb_divisor_value, pi_value;
3037 desired_divisor = (iclk_virtual_root_freq / crtc->mode.clock);
3038 msb_divisor_value = desired_divisor / iclk_pi_range;
3039 pi_value = desired_divisor % iclk_pi_range;
3042 divsel = msb_divisor_value - 2;
3043 phaseinc = pi_value;
3046 /* This should not happen with any sane values */
3047 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) &
3048 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK);
3049 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) &
3050 ~SBI_SSCDIVINTPHASE_INCVAL_MASK);
3052 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
3059 /* Program SSCDIVINTPHASE6 */
3060 temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6, SBI_ICLK);
3061 temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK;
3062 temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel);
3063 temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK;
3064 temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc);
3065 temp |= SBI_SSCDIVINTPHASE_DIR(phasedir);
3066 temp |= SBI_SSCDIVINTPHASE_PROPAGATE;
3067 intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE6, temp, SBI_ICLK);
3069 /* Program SSCAUXDIV */
3070 temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6, SBI_ICLK);
3071 temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
3072 temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv);
3073 intel_sbi_write(dev_priv, SBI_SSCAUXDIV6, temp, SBI_ICLK);
3075 /* Enable modulator and associated divider */
3076 temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK);
3077 temp &= ~SBI_SSCCTL_DISABLE;
3078 intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK);
3080 /* Wait for initialization time */
3083 I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE);
3085 mutex_unlock(&dev_priv->dpio_lock);
3089 * Enable PCH resources required for PCH ports:
3091 * - FDI training & RX/TX
3092 * - update transcoder timings
3093 * - DP transcoding bits
3096 static void ironlake_pch_enable(struct drm_crtc *crtc)
3098 struct drm_device *dev = crtc->dev;
3099 struct drm_i915_private *dev_priv = dev->dev_private;
3100 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3101 int pipe = intel_crtc->pipe;
3104 assert_transcoder_disabled(dev_priv, pipe);
3106 /* Write the TU size bits before fdi link training, so that error
3107 * detection works. */
3108 I915_WRITE(FDI_RX_TUSIZE1(pipe),
3109 I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK);
3111 /* For PCH output, training FDI link */
3112 dev_priv->display.fdi_link_train(crtc);
3114 /* XXX: pch pll's can be enabled any time before we enable the PCH
3115 * transcoder, and we actually should do this to not upset any PCH
3116 * transcoder that already use the clock when we share it.
3118 * Note that enable_pch_pll tries to do the right thing, but get_pch_pll
3119 * unconditionally resets the pll - we need that to have the right LVDS
3120 * enable sequence. */
3121 ironlake_enable_pch_pll(intel_crtc);
3123 if (HAS_PCH_CPT(dev)) {
3126 temp = I915_READ(PCH_DPLL_SEL);
3130 temp |= TRANSA_DPLL_ENABLE;
3131 sel = TRANSA_DPLLB_SEL;
3134 temp |= TRANSB_DPLL_ENABLE;
3135 sel = TRANSB_DPLLB_SEL;
3138 temp |= TRANSC_DPLL_ENABLE;
3139 sel = TRANSC_DPLLB_SEL;
3142 if (intel_crtc->pch_pll->pll_reg == _PCH_DPLL_B)
3146 I915_WRITE(PCH_DPLL_SEL, temp);
3149 /* set transcoder timing, panel must allow it */
3150 assert_panel_unlocked(dev_priv, pipe);
3151 I915_WRITE(TRANS_HTOTAL(pipe), I915_READ(HTOTAL(pipe)));
3152 I915_WRITE(TRANS_HBLANK(pipe), I915_READ(HBLANK(pipe)));
3153 I915_WRITE(TRANS_HSYNC(pipe), I915_READ(HSYNC(pipe)));
3155 I915_WRITE(TRANS_VTOTAL(pipe), I915_READ(VTOTAL(pipe)));
3156 I915_WRITE(TRANS_VBLANK(pipe), I915_READ(VBLANK(pipe)));
3157 I915_WRITE(TRANS_VSYNC(pipe), I915_READ(VSYNC(pipe)));
3158 I915_WRITE(TRANS_VSYNCSHIFT(pipe), I915_READ(VSYNCSHIFT(pipe)));
3160 intel_fdi_normal_train(crtc);
3162 /* For PCH DP, enable TRANS_DP_CTL */
3163 if (HAS_PCH_CPT(dev) &&
3164 (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
3165 intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
3166 u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) >> 5;
3167 reg = TRANS_DP_CTL(pipe);
3168 temp = I915_READ(reg);
3169 temp &= ~(TRANS_DP_PORT_SEL_MASK |
3170 TRANS_DP_SYNC_MASK |
3172 temp |= (TRANS_DP_OUTPUT_ENABLE |
3173 TRANS_DP_ENH_FRAMING);
3174 temp |= bpc << 9; /* same format but at 11:9 */
3176 if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC)
3177 temp |= TRANS_DP_HSYNC_ACTIVE_HIGH;
3178 if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC)
3179 temp |= TRANS_DP_VSYNC_ACTIVE_HIGH;
3181 switch (intel_trans_dp_port_sel(crtc)) {
3183 temp |= TRANS_DP_PORT_SEL_B;
3186 temp |= TRANS_DP_PORT_SEL_C;
3189 temp |= TRANS_DP_PORT_SEL_D;
3195 I915_WRITE(reg, temp);
3198 ironlake_enable_pch_transcoder(dev_priv, pipe);
3201 static void lpt_pch_enable(struct drm_crtc *crtc)
3203 struct drm_device *dev = crtc->dev;
3204 struct drm_i915_private *dev_priv = dev->dev_private;
3205 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3206 enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder;
3208 assert_transcoder_disabled(dev_priv, TRANSCODER_A);
3210 lpt_program_iclkip(crtc);
3212 /* Set transcoder timing. */
3213 I915_WRITE(_TRANS_HTOTAL_A, I915_READ(HTOTAL(cpu_transcoder)));
3214 I915_WRITE(_TRANS_HBLANK_A, I915_READ(HBLANK(cpu_transcoder)));
3215 I915_WRITE(_TRANS_HSYNC_A, I915_READ(HSYNC(cpu_transcoder)));
3217 I915_WRITE(_TRANS_VTOTAL_A, I915_READ(VTOTAL(cpu_transcoder)));
3218 I915_WRITE(_TRANS_VBLANK_A, I915_READ(VBLANK(cpu_transcoder)));
3219 I915_WRITE(_TRANS_VSYNC_A, I915_READ(VSYNC(cpu_transcoder)));
3220 I915_WRITE(_TRANS_VSYNCSHIFT_A, I915_READ(VSYNCSHIFT(cpu_transcoder)));
3222 lpt_enable_pch_transcoder(dev_priv, cpu_transcoder);
3225 static void intel_put_pch_pll(struct intel_crtc *intel_crtc)
3227 struct intel_pch_pll *pll = intel_crtc->pch_pll;
3232 if (pll->refcount == 0) {
3233 WARN(1, "bad PCH PLL refcount\n");
3238 intel_crtc->pch_pll = NULL;
3241 static struct intel_pch_pll *intel_get_pch_pll(struct intel_crtc *intel_crtc, u32 dpll, u32 fp)
3243 struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private;
3244 struct intel_pch_pll *pll;
3247 pll = intel_crtc->pch_pll;
3249 DRM_DEBUG_KMS("CRTC:%d reusing existing PCH PLL %x\n",
3250 intel_crtc->base.base.id, pll->pll_reg);
3254 if (HAS_PCH_IBX(dev_priv->dev)) {
3255 /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
3256 i = intel_crtc->pipe;
3257 pll = &dev_priv->pch_plls[i];
3259 DRM_DEBUG_KMS("CRTC:%d using pre-allocated PCH PLL %x\n",
3260 intel_crtc->base.base.id, pll->pll_reg);
3265 for (i = 0; i < dev_priv->num_pch_pll; i++) {
3266 pll = &dev_priv->pch_plls[i];
3268 /* Only want to check enabled timings first */
3269 if (pll->refcount == 0)
3272 if (dpll == (I915_READ(pll->pll_reg) & 0x7fffffff) &&
3273 fp == I915_READ(pll->fp0_reg)) {
3274 DRM_DEBUG_KMS("CRTC:%d sharing existing PCH PLL %x (refcount %d, ative %d)\n",
3275 intel_crtc->base.base.id,
3276 pll->pll_reg, pll->refcount, pll->active);
3282 /* Ok no matching timings, maybe there's a free one? */
3283 for (i = 0; i < dev_priv->num_pch_pll; i++) {
3284 pll = &dev_priv->pch_plls[i];
3285 if (pll->refcount == 0) {
3286 DRM_DEBUG_KMS("CRTC:%d allocated PCH PLL %x\n",
3287 intel_crtc->base.base.id, pll->pll_reg);
3295 intel_crtc->pch_pll = pll;
3297 DRM_DEBUG_DRIVER("using pll %d for pipe %d\n", i, intel_crtc->pipe);
3298 prepare: /* separate function? */
3299 DRM_DEBUG_DRIVER("switching PLL %x off\n", pll->pll_reg);
3301 /* Wait for the clocks to stabilize before rewriting the regs */
3302 I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE);
3303 POSTING_READ(pll->pll_reg);
3306 I915_WRITE(pll->fp0_reg, fp);
3307 I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE);
3312 void intel_cpt_verify_modeset(struct drm_device *dev, int pipe)
3314 struct drm_i915_private *dev_priv = dev->dev_private;
3315 int dslreg = PIPEDSL(pipe);
3318 temp = I915_READ(dslreg);
3320 if (wait_for(I915_READ(dslreg) != temp, 5)) {
3321 if (wait_for(I915_READ(dslreg) != temp, 5))
3322 DRM_ERROR("mode set failed: pipe %d stuck\n", pipe);
3326 static void ironlake_crtc_enable(struct drm_crtc *crtc)
3328 struct drm_device *dev = crtc->dev;
3329 struct drm_i915_private *dev_priv = dev->dev_private;
3330 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3331 struct intel_encoder *encoder;
3332 int pipe = intel_crtc->pipe;
3333 int plane = intel_crtc->plane;
3336 WARN_ON(!crtc->enabled);
3338 if (intel_crtc->active)
3341 intel_crtc->active = true;
3342 intel_update_watermarks(dev);
3344 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
3345 temp = I915_READ(PCH_LVDS);
3346 if ((temp & LVDS_PORT_EN) == 0)
3347 I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN);
3351 if (intel_crtc->config.has_pch_encoder) {
3352 /* Note: FDI PLL enabling _must_ be done before we enable the
3353 * cpu pipes, hence this is separate from all the other fdi/pch
3355 ironlake_fdi_pll_enable(intel_crtc);
3357 assert_fdi_tx_disabled(dev_priv, pipe);
3358 assert_fdi_rx_disabled(dev_priv, pipe);
3361 for_each_encoder_on_crtc(dev, crtc, encoder)
3362 if (encoder->pre_enable)
3363 encoder->pre_enable(encoder);
3365 /* Enable panel fitting for LVDS */
3366 if (dev_priv->pch_pf_size &&
3367 (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) ||
3368 intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
3369 /* Force use of hard-coded filter coefficients
3370 * as some pre-programmed values are broken,
3373 if (IS_IVYBRIDGE(dev))
3374 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 |
3375 PF_PIPE_SEL_IVB(pipe));
3377 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3);
3378 I915_WRITE(PF_WIN_POS(pipe), dev_priv->pch_pf_pos);
3379 I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size);
3383 * On ILK+ LUT must be loaded before the pipe is running but with
3386 intel_crtc_load_lut(crtc);
3388 intel_enable_pipe(dev_priv, pipe,
3389 intel_crtc->config.has_pch_encoder);
3390 intel_enable_plane(dev_priv, plane, pipe);
3392 if (intel_crtc->config.has_pch_encoder)
3393 ironlake_pch_enable(crtc);
3395 mutex_lock(&dev->struct_mutex);
3396 intel_update_fbc(dev);
3397 mutex_unlock(&dev->struct_mutex);
3399 intel_crtc_update_cursor(crtc, true);
3401 for_each_encoder_on_crtc(dev, crtc, encoder)
3402 encoder->enable(encoder);
3404 if (HAS_PCH_CPT(dev))
3405 intel_cpt_verify_modeset(dev, intel_crtc->pipe);
3408 * There seems to be a race in PCH platform hw (at least on some
3409 * outputs) where an enabled pipe still completes any pageflip right
3410 * away (as if the pipe is off) instead of waiting for vblank. As soon
3411 * as the first vblank happend, everything works as expected. Hence just
3412 * wait for one vblank before returning to avoid strange things
3415 intel_wait_for_vblank(dev, intel_crtc->pipe);
3418 static void haswell_crtc_enable(struct drm_crtc *crtc)
3420 struct drm_device *dev = crtc->dev;
3421 struct drm_i915_private *dev_priv = dev->dev_private;
3422 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3423 struct intel_encoder *encoder;
3424 int pipe = intel_crtc->pipe;
3425 int plane = intel_crtc->plane;
3427 WARN_ON(!crtc->enabled);
3429 if (intel_crtc->active)
3432 intel_crtc->active = true;
3433 intel_update_watermarks(dev);
3435 if (intel_crtc->config.has_pch_encoder)
3436 dev_priv->display.fdi_link_train(crtc);
3438 for_each_encoder_on_crtc(dev, crtc, encoder)
3439 if (encoder->pre_enable)
3440 encoder->pre_enable(encoder);
3442 intel_ddi_enable_pipe_clock(intel_crtc);
3444 /* Enable panel fitting for eDP */
3445 if (dev_priv->pch_pf_size &&
3446 intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) {
3447 /* Force use of hard-coded filter coefficients
3448 * as some pre-programmed values are broken,
3451 I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 |
3452 PF_PIPE_SEL_IVB(pipe));
3453 I915_WRITE(PF_WIN_POS(pipe), dev_priv->pch_pf_pos);
3454 I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size);
3458 * On ILK+ LUT must be loaded before the pipe is running but with
3461 intel_crtc_load_lut(crtc);
3463 intel_ddi_set_pipe_settings(crtc);
3464 intel_ddi_enable_transcoder_func(crtc);
3466 intel_enable_pipe(dev_priv, pipe,
3467 intel_crtc->config.has_pch_encoder);
3468 intel_enable_plane(dev_priv, plane, pipe);
3470 if (intel_crtc->config.has_pch_encoder)
3471 lpt_pch_enable(crtc);
3473 mutex_lock(&dev->struct_mutex);
3474 intel_update_fbc(dev);
3475 mutex_unlock(&dev->struct_mutex);
3477 intel_crtc_update_cursor(crtc, true);
3479 for_each_encoder_on_crtc(dev, crtc, encoder)
3480 encoder->enable(encoder);
3483 * There seems to be a race in PCH platform hw (at least on some
3484 * outputs) where an enabled pipe still completes any pageflip right
3485 * away (as if the pipe is off) instead of waiting for vblank. As soon
3486 * as the first vblank happend, everything works as expected. Hence just
3487 * wait for one vblank before returning to avoid strange things
3490 intel_wait_for_vblank(dev, intel_crtc->pipe);
3493 static void ironlake_crtc_disable(struct drm_crtc *crtc)
3495 struct drm_device *dev = crtc->dev;
3496 struct drm_i915_private *dev_priv = dev->dev_private;
3497 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3498 struct intel_encoder *encoder;
3499 int pipe = intel_crtc->pipe;
3500 int plane = intel_crtc->plane;
3504 if (!intel_crtc->active)
3507 for_each_encoder_on_crtc(dev, crtc, encoder)
3508 encoder->disable(encoder);
3510 intel_crtc_wait_for_pending_flips(crtc);
3511 drm_vblank_off(dev, pipe);
3512 intel_crtc_update_cursor(crtc, false);
3514 intel_disable_plane(dev_priv, plane, pipe);
3516 if (dev_priv->cfb_plane == plane)
3517 intel_disable_fbc(dev);
3519 intel_disable_pipe(dev_priv, pipe);
3522 I915_WRITE(PF_CTL(pipe), 0);
3523 I915_WRITE(PF_WIN_SZ(pipe), 0);
3525 for_each_encoder_on_crtc(dev, crtc, encoder)
3526 if (encoder->post_disable)
3527 encoder->post_disable(encoder);
3529 ironlake_fdi_disable(crtc);
3531 ironlake_disable_pch_transcoder(dev_priv, pipe);
3533 if (HAS_PCH_CPT(dev)) {
3534 /* disable TRANS_DP_CTL */
3535 reg = TRANS_DP_CTL(pipe);
3536 temp = I915_READ(reg);
3537 temp &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK);
3538 temp |= TRANS_DP_PORT_SEL_NONE;
3539 I915_WRITE(reg, temp);
3541 /* disable DPLL_SEL */
3542 temp = I915_READ(PCH_DPLL_SEL);
3545 temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL);
3548 temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL);
3551 /* C shares PLL A or B */
3552 temp &= ~(TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL);
3557 I915_WRITE(PCH_DPLL_SEL, temp);
3560 /* disable PCH DPLL */
3561 intel_disable_pch_pll(intel_crtc);
3563 ironlake_fdi_pll_disable(intel_crtc);
3565 intel_crtc->active = false;
3566 intel_update_watermarks(dev);
3568 mutex_lock(&dev->struct_mutex);
3569 intel_update_fbc(dev);
3570 mutex_unlock(&dev->struct_mutex);
3573 static void haswell_crtc_disable(struct drm_crtc *crtc)
3575 struct drm_device *dev = crtc->dev;
3576 struct drm_i915_private *dev_priv = dev->dev_private;
3577 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3578 struct intel_encoder *encoder;
3579 int pipe = intel_crtc->pipe;
3580 int plane = intel_crtc->plane;
3581 enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder;
3583 if (!intel_crtc->active)
3586 for_each_encoder_on_crtc(dev, crtc, encoder)
3587 encoder->disable(encoder);
3589 intel_crtc_wait_for_pending_flips(crtc);
3590 drm_vblank_off(dev, pipe);
3591 intel_crtc_update_cursor(crtc, false);
3593 intel_disable_plane(dev_priv, plane, pipe);
3595 if (dev_priv->cfb_plane == plane)
3596 intel_disable_fbc(dev);
3598 intel_disable_pipe(dev_priv, pipe);
3600 intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder);
3602 /* XXX: Once we have proper panel fitter state tracking implemented with
3603 * hardware state read/check support we should switch to only disable
3604 * the panel fitter when we know it's used. */
3605 if (intel_using_power_well(dev)) {
3606 I915_WRITE(PF_CTL(pipe), 0);
3607 I915_WRITE(PF_WIN_SZ(pipe), 0);
3610 intel_ddi_disable_pipe_clock(intel_crtc);
3612 for_each_encoder_on_crtc(dev, crtc, encoder)
3613 if (encoder->post_disable)
3614 encoder->post_disable(encoder);
3616 if (intel_crtc->config.has_pch_encoder) {
3617 lpt_disable_pch_transcoder(dev_priv);
3618 intel_ddi_fdi_disable(crtc);
3621 intel_crtc->active = false;
3622 intel_update_watermarks(dev);
3624 mutex_lock(&dev->struct_mutex);
3625 intel_update_fbc(dev);
3626 mutex_unlock(&dev->struct_mutex);
3629 static void ironlake_crtc_off(struct drm_crtc *crtc)
3631 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3632 intel_put_pch_pll(intel_crtc);
3635 static void haswell_crtc_off(struct drm_crtc *crtc)
3637 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3639 /* Stop saying we're using TRANSCODER_EDP because some other CRTC might
3640 * start using it. */
3641 intel_crtc->cpu_transcoder = (enum transcoder) intel_crtc->pipe;
3643 intel_ddi_put_crtc_pll(crtc);
3646 static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable)
3648 if (!enable && intel_crtc->overlay) {
3649 struct drm_device *dev = intel_crtc->base.dev;
3650 struct drm_i915_private *dev_priv = dev->dev_private;
3652 mutex_lock(&dev->struct_mutex);
3653 dev_priv->mm.interruptible = false;
3654 (void) intel_overlay_switch_off(intel_crtc->overlay);
3655 dev_priv->mm.interruptible = true;
3656 mutex_unlock(&dev->struct_mutex);
3659 /* Let userspace switch the overlay on again. In most cases userspace
3660 * has to recompute where to put it anyway.
3665 * i9xx_fixup_plane - ugly workaround for G45 to fire up the hardware
3666 * cursor plane briefly if not already running after enabling the display
3668 * This workaround avoids occasional blank screens when self refresh is
3672 g4x_fixup_plane(struct drm_i915_private *dev_priv, enum pipe pipe)
3674 u32 cntl = I915_READ(CURCNTR(pipe));
3676 if ((cntl & CURSOR_MODE) == 0) {
3677 u32 fw_bcl_self = I915_READ(FW_BLC_SELF);
3679 I915_WRITE(FW_BLC_SELF, fw_bcl_self & ~FW_BLC_SELF_EN);
3680 I915_WRITE(CURCNTR(pipe), CURSOR_MODE_64_ARGB_AX);
3681 intel_wait_for_vblank(dev_priv->dev, pipe);
3682 I915_WRITE(CURCNTR(pipe), cntl);
3683 I915_WRITE(CURBASE(pipe), I915_READ(CURBASE(pipe)));
3684 I915_WRITE(FW_BLC_SELF, fw_bcl_self);
3688 static void i9xx_crtc_enable(struct drm_crtc *crtc)
3690 struct drm_device *dev = crtc->dev;
3691 struct drm_i915_private *dev_priv = dev->dev_private;
3692 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3693 struct intel_encoder *encoder;
3694 int pipe = intel_crtc->pipe;
3695 int plane = intel_crtc->plane;
3697 WARN_ON(!crtc->enabled);
3699 if (intel_crtc->active)
3702 intel_crtc->active = true;
3703 intel_update_watermarks(dev);
3705 intel_enable_pll(dev_priv, pipe);
3707 for_each_encoder_on_crtc(dev, crtc, encoder)
3708 if (encoder->pre_enable)
3709 encoder->pre_enable(encoder);
3711 intel_enable_pipe(dev_priv, pipe, false);
3712 intel_enable_plane(dev_priv, plane, pipe);
3714 g4x_fixup_plane(dev_priv, pipe);
3716 intel_crtc_load_lut(crtc);
3717 intel_update_fbc(dev);
3719 /* Give the overlay scaler a chance to enable if it's on this pipe */
3720 intel_crtc_dpms_overlay(intel_crtc, true);
3721 intel_crtc_update_cursor(crtc, true);
3723 for_each_encoder_on_crtc(dev, crtc, encoder)
3724 encoder->enable(encoder);
3727 static void i9xx_crtc_disable(struct drm_crtc *crtc)
3729 struct drm_device *dev = crtc->dev;
3730 struct drm_i915_private *dev_priv = dev->dev_private;
3731 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3732 struct intel_encoder *encoder;
3733 int pipe = intel_crtc->pipe;
3734 int plane = intel_crtc->plane;
3738 if (!intel_crtc->active)
3741 for_each_encoder_on_crtc(dev, crtc, encoder)
3742 encoder->disable(encoder);
3744 /* Give the overlay scaler a chance to disable if it's on this pipe */
3745 intel_crtc_wait_for_pending_flips(crtc);
3746 drm_vblank_off(dev, pipe);
3747 intel_crtc_dpms_overlay(intel_crtc, false);
3748 intel_crtc_update_cursor(crtc, false);
3750 if (dev_priv->cfb_plane == plane)
3751 intel_disable_fbc(dev);
3753 intel_disable_plane(dev_priv, plane, pipe);
3754 intel_disable_pipe(dev_priv, pipe);
3756 /* Disable pannel fitter if it is on this pipe. */
3757 pctl = I915_READ(PFIT_CONTROL);
3758 if ((pctl & PFIT_ENABLE) &&
3759 ((pctl & PFIT_PIPE_MASK) >> PFIT_PIPE_SHIFT) == pipe)
3760 I915_WRITE(PFIT_CONTROL, 0);
3762 intel_disable_pll(dev_priv, pipe);
3764 intel_crtc->active = false;
3765 intel_update_fbc(dev);
3766 intel_update_watermarks(dev);
3769 static void i9xx_crtc_off(struct drm_crtc *crtc)
3773 static void intel_crtc_update_sarea(struct drm_crtc *crtc,
3776 struct drm_device *dev = crtc->dev;
3777 struct drm_i915_master_private *master_priv;
3778 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3779 int pipe = intel_crtc->pipe;
3781 if (!dev->primary->master)
3784 master_priv = dev->primary->master->driver_priv;
3785 if (!master_priv->sarea_priv)
3790 master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0;
3791 master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0;
3794 master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0;
3795 master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0;
3798 DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe));
3804 * Sets the power management mode of the pipe and plane.
3806 void intel_crtc_update_dpms(struct drm_crtc *crtc)
3808 struct drm_device *dev = crtc->dev;
3809 struct drm_i915_private *dev_priv = dev->dev_private;
3810 struct intel_encoder *intel_encoder;
3811 bool enable = false;
3813 for_each_encoder_on_crtc(dev, crtc, intel_encoder)
3814 enable |= intel_encoder->connectors_active;
3817 dev_priv->display.crtc_enable(crtc);
3819 dev_priv->display.crtc_disable(crtc);
3821 intel_crtc_update_sarea(crtc, enable);
3824 static void intel_crtc_disable(struct drm_crtc *crtc)
3826 struct drm_device *dev = crtc->dev;
3827 struct drm_connector *connector;
3828 struct drm_i915_private *dev_priv = dev->dev_private;
3829 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
3831 /* crtc should still be enabled when we disable it. */
3832 WARN_ON(!crtc->enabled);
3834 intel_crtc->eld_vld = false;
3835 dev_priv->display.crtc_disable(crtc);
3836 intel_crtc_update_sarea(crtc, false);
3837 dev_priv->display.off(crtc);
3839 assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane);
3840 assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe);
3843 mutex_lock(&dev->struct_mutex);
3844 intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj);
3845 mutex_unlock(&dev->struct_mutex);
3849 /* Update computed state. */
3850 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
3851 if (!connector->encoder || !connector->encoder->crtc)
3854 if (connector->encoder->crtc != crtc)
3857 connector->dpms = DRM_MODE_DPMS_OFF;
3858 to_intel_encoder(connector->encoder)->connectors_active = false;
3862 void intel_modeset_disable(struct drm_device *dev)
3864 struct drm_crtc *crtc;
3866 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
3868 intel_crtc_disable(crtc);
3872 void intel_encoder_destroy(struct drm_encoder *encoder)
3874 struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
3876 drm_encoder_cleanup(encoder);
3877 kfree(intel_encoder);
3880 /* Simple dpms helper for encodres with just one connector, no cloning and only
3881 * one kind of off state. It clamps all !ON modes to fully OFF and changes the
3882 * state of the entire output pipe. */
3883 void intel_encoder_dpms(struct intel_encoder *encoder, int mode)
3885 if (mode == DRM_MODE_DPMS_ON) {
3886 encoder->connectors_active = true;
3888 intel_crtc_update_dpms(encoder->base.crtc);
3890 encoder->connectors_active = false;
3892 intel_crtc_update_dpms(encoder->base.crtc);
3896 /* Cross check the actual hw state with our own modeset state tracking (and it's
3897 * internal consistency). */
3898 static void intel_connector_check_state(struct intel_connector *connector)
3900 if (connector->get_hw_state(connector)) {
3901 struct intel_encoder *encoder = connector->encoder;
3902 struct drm_crtc *crtc;
3903 bool encoder_enabled;
3906 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
3907 connector->base.base.id,
3908 drm_get_connector_name(&connector->base));
3910 WARN(connector->base.dpms == DRM_MODE_DPMS_OFF,
3911 "wrong connector dpms state\n");
3912 WARN(connector->base.encoder != &encoder->base,
3913 "active connector not linked to encoder\n");
3914 WARN(!encoder->connectors_active,
3915 "encoder->connectors_active not set\n");
3917 encoder_enabled = encoder->get_hw_state(encoder, &pipe);
3918 WARN(!encoder_enabled, "encoder not enabled\n");
3919 if (WARN_ON(!encoder->base.crtc))
3922 crtc = encoder->base.crtc;
3924 WARN(!crtc->enabled, "crtc not enabled\n");
3925 WARN(!to_intel_crtc(crtc)->active, "crtc not active\n");
3926 WARN(pipe != to_intel_crtc(crtc)->pipe,
3927 "encoder active on the wrong pipe\n");
3931 /* Even simpler default implementation, if there's really no special case to
3933 void intel_connector_dpms(struct drm_connector *connector, int mode)
3935 struct intel_encoder *encoder = intel_attached_encoder(connector);
3937 /* All the simple cases only support two dpms states. */
3938 if (mode != DRM_MODE_DPMS_ON)
3939 mode = DRM_MODE_DPMS_OFF;
3941 if (mode == connector->dpms)
3944 connector->dpms = mode;
3946 /* Only need to change hw state when actually enabled */
3947 if (encoder->base.crtc)
3948 intel_encoder_dpms(encoder, mode);
3950 WARN_ON(encoder->connectors_active != false);
3952 intel_modeset_check_state(connector->dev);
3955 /* Simple connector->get_hw_state implementation for encoders that support only
3956 * one connector and no cloning and hence the encoder state determines the state
3957 * of the connector. */
3958 bool intel_connector_get_hw_state(struct intel_connector *connector)
3961 struct intel_encoder *encoder = connector->encoder;
3963 return encoder->get_hw_state(encoder, &pipe);
3966 static bool intel_crtc_compute_config(struct drm_crtc *crtc,
3967 struct intel_crtc_config *pipe_config)
3969 struct drm_device *dev = crtc->dev;
3970 struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
3972 if (HAS_PCH_SPLIT(dev)) {
3973 /* FDI link clock is fixed at 2.7G */
3974 if (pipe_config->requested_mode.clock * 3
3975 > IRONLAKE_FDI_FREQ * 4)
3979 /* All interlaced capable intel hw wants timings in frames. Note though
3980 * that intel_lvds_mode_fixup does some funny tricks with the crtc
3981 * timings, so we need to be careful not to clobber these.*/
3982 if (!pipe_config->timings_set)
3983 drm_mode_set_crtcinfo(adjusted_mode, 0);
3985 /* WaPruneModeWithIncorrectHsyncOffset: Cantiga+ cannot handle modes
3986 * with a hsync front porch of 0.
3988 if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) &&
3989 adjusted_mode->hsync_start == adjusted_mode->hdisplay)
3992 if ((IS_G4X(dev) || IS_VALLEYVIEW(dev)) && pipe_config->pipe_bpp > 10) {
3993 pipe_config->pipe_bpp = 10*3; /* 12bpc is gen5+ */
3994 } else if (INTEL_INFO(dev)->gen <= 4 && pipe_config->pipe_bpp > 8) {
3995 /* only a 8bpc pipe, with 6bpc dither through the panel fitter
3997 pipe_config->pipe_bpp = 8*3;
4003 static int valleyview_get_display_clock_speed(struct drm_device *dev)
4005 return 400000; /* FIXME */
4008 static int i945_get_display_clock_speed(struct drm_device *dev)
4013 static int i915_get_display_clock_speed(struct drm_device *dev)
4018 static int i9xx_misc_get_display_clock_speed(struct drm_device *dev)
4023 static int i915gm_get_display_clock_speed(struct drm_device *dev)
4027 pci_read_config_word(dev->pdev, GCFGC, &gcfgc);
4029 if (gcfgc & GC_LOW_FREQUENCY_ENABLE)
4032 switch (gcfgc & GC_DISPLAY_CLOCK_MASK) {
4033 case GC_DISPLAY_CLOCK_333_MHZ:
4036 case GC_DISPLAY_CLOCK_190_200_MHZ:
4042 static int i865_get_display_clock_speed(struct drm_device *dev)
4047 static int i855_get_display_clock_speed(struct drm_device *dev)
4050 /* Assume that the hardware is in the high speed state. This
4051 * should be the default.
4053 switch (hpllcc & GC_CLOCK_CONTROL_MASK) {
4054 case GC_CLOCK_133_200:
4055 case GC_CLOCK_100_200:
4057 case GC_CLOCK_166_250:
4059 case GC_CLOCK_100_133:
4063 /* Shouldn't happen */
4067 static int i830_get_display_clock_speed(struct drm_device *dev)
4073 intel_reduce_ratio(uint32_t *num, uint32_t *den)
4075 while (*num > 0xffffff || *den > 0xffffff) {
4082 intel_link_compute_m_n(int bits_per_pixel, int nlanes,
4083 int pixel_clock, int link_clock,
4084 struct intel_link_m_n *m_n)
4087 m_n->gmch_m = bits_per_pixel * pixel_clock;
4088 m_n->gmch_n = link_clock * nlanes * 8;
4089 intel_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n);
4090 m_n->link_m = pixel_clock;
4091 m_n->link_n = link_clock;
4092 intel_reduce_ratio(&m_n->link_m, &m_n->link_n);
4095 static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
4097 if (i915_panel_use_ssc >= 0)
4098 return i915_panel_use_ssc != 0;
4099 return dev_priv->lvds_use_ssc
4100 && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE);
4103 static int vlv_get_refclk(struct drm_crtc *crtc)
4105 struct drm_device *dev = crtc->dev;
4106 struct drm_i915_private *dev_priv = dev->dev_private;
4107 int refclk = 27000; /* for DP & HDMI */
4109 return 100000; /* only one validated so far */
4111 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) {
4113 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
4114 if (intel_panel_use_ssc(dev_priv))
4118 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) {
4125 static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors)
4127 struct drm_device *dev = crtc->dev;
4128 struct drm_i915_private *dev_priv = dev->dev_private;
4131 if (IS_VALLEYVIEW(dev)) {
4132 refclk = vlv_get_refclk(crtc);
4133 } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
4134 intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
4135 refclk = dev_priv->lvds_ssc_freq * 1000;
4136 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
4138 } else if (!IS_GEN2(dev)) {
4147 static void i9xx_adjust_sdvo_tv_clock(struct intel_crtc *crtc)
4149 unsigned dotclock = crtc->config.adjusted_mode.clock;
4150 struct dpll *clock = &crtc->config.dpll;
4152 /* SDVO TV has fixed PLL values depend on its clock range,
4153 this mirrors vbios setting. */
4154 if (dotclock >= 100000 && dotclock < 140500) {
4160 } else if (dotclock >= 140500 && dotclock <= 200000) {
4168 crtc->config.clock_set = true;
4171 static void i9xx_update_pll_dividers(struct intel_crtc *crtc,
4172 intel_clock_t *reduced_clock)
4174 struct drm_device *dev = crtc->base.dev;
4175 struct drm_i915_private *dev_priv = dev->dev_private;
4176 int pipe = crtc->pipe;
4178 struct dpll *clock = &crtc->config.dpll;
4180 if (IS_PINEVIEW(dev)) {
4181 fp = (1 << clock->n) << 16 | clock->m1 << 8 | clock->m2;
4183 fp2 = (1 << reduced_clock->n) << 16 |
4184 reduced_clock->m1 << 8 | reduced_clock->m2;
4186 fp = clock->n << 16 | clock->m1 << 8 | clock->m2;
4188 fp2 = reduced_clock->n << 16 | reduced_clock->m1 << 8 |
4192 I915_WRITE(FP0(pipe), fp);
4194 crtc->lowfreq_avail = false;
4195 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
4196 reduced_clock && i915_powersave) {
4197 I915_WRITE(FP1(pipe), fp2);
4198 crtc->lowfreq_avail = true;
4200 I915_WRITE(FP1(pipe), fp);
4204 static void intel_dp_set_m_n(struct intel_crtc *crtc)
4206 if (crtc->config.has_pch_encoder)
4207 intel_pch_transcoder_set_m_n(crtc, &crtc->config.dp_m_n);
4209 intel_cpu_transcoder_set_m_n(crtc, &crtc->config.dp_m_n);
4212 static void vlv_update_pll(struct intel_crtc *crtc)
4214 struct drm_device *dev = crtc->base.dev;
4215 struct drm_i915_private *dev_priv = dev->dev_private;
4216 int pipe = crtc->pipe;
4217 u32 dpll, mdiv, pdiv;
4218 u32 bestn, bestm1, bestm2, bestp1, bestp2;
4222 mutex_lock(&dev_priv->dpio_lock);
4224 is_sdvo = intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_SDVO) ||
4225 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI);
4227 dpll = DPLL_VGA_MODE_DIS;
4228 dpll |= DPLL_EXT_BUFFER_ENABLE_VLV;
4229 dpll |= DPLL_REFA_CLK_ENABLE_VLV;
4230 dpll |= DPLL_INTEGRATED_CLOCK_VLV;
4232 I915_WRITE(DPLL(pipe), dpll);
4233 POSTING_READ(DPLL(pipe));
4235 bestn = crtc->config.dpll.n;
4236 bestm1 = crtc->config.dpll.m1;
4237 bestm2 = crtc->config.dpll.m2;
4238 bestp1 = crtc->config.dpll.p1;
4239 bestp2 = crtc->config.dpll.p2;
4242 * In Valleyview PLL and program lane counter registers are exposed
4243 * through DPIO interface
4245 mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK));
4246 mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT));
4247 mdiv |= ((bestn << DPIO_N_SHIFT));
4248 mdiv |= (1 << DPIO_POST_DIV_SHIFT);
4249 mdiv |= (1 << DPIO_K_SHIFT);
4250 mdiv |= DPIO_ENABLE_CALIBRATION;
4251 intel_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv);
4253 intel_dpio_write(dev_priv, DPIO_CORE_CLK(pipe), 0x01000000);
4255 pdiv = (1 << DPIO_REFSEL_OVERRIDE) | (5 << DPIO_PLL_MODESEL_SHIFT) |
4256 (3 << DPIO_BIAS_CURRENT_CTL_SHIFT) | (1<<20) |
4257 (7 << DPIO_PLL_REFCLK_SEL_SHIFT) | (8 << DPIO_DRIVER_CTL_SHIFT) |
4258 (5 << DPIO_CLK_BIAS_CTL_SHIFT);
4259 intel_dpio_write(dev_priv, DPIO_REFSFR(pipe), pdiv);
4261 intel_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe), 0x005f003b);
4263 dpll |= DPLL_VCO_ENABLE;
4264 I915_WRITE(DPLL(pipe), dpll);
4265 POSTING_READ(DPLL(pipe));
4266 if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1))
4267 DRM_ERROR("DPLL %d failed to lock\n", pipe);
4269 intel_dpio_write(dev_priv, DPIO_FASTCLK_DISABLE, 0x620);
4271 if (crtc->config.has_dp_encoder)
4272 intel_dp_set_m_n(crtc);
4274 I915_WRITE(DPLL(pipe), dpll);
4276 /* Wait for the clocks to stabilize. */
4277 POSTING_READ(DPLL(pipe));
4283 if (crtc->config.pixel_multiplier > 1) {
4284 temp = (crtc->config.pixel_multiplier - 1)
4285 << DPLL_MD_UDI_MULTIPLIER_SHIFT;
4288 I915_WRITE(DPLL_MD(pipe), temp);
4289 POSTING_READ(DPLL_MD(pipe));
4291 /* Now program lane control registers */
4292 if(intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT)
4293 || intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI)) {
4297 intel_dpio_write(dev_priv, DPIO_DATA_CHANNEL1, temp);
4300 if(intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP)) {
4304 intel_dpio_write(dev_priv, DPIO_DATA_CHANNEL2, temp);
4307 mutex_unlock(&dev_priv->dpio_lock);
4310 static void i9xx_update_pll(struct intel_crtc *crtc,
4311 intel_clock_t *reduced_clock,
4314 struct drm_device *dev = crtc->base.dev;
4315 struct drm_i915_private *dev_priv = dev->dev_private;
4316 struct intel_encoder *encoder;
4317 int pipe = crtc->pipe;
4320 struct dpll *clock = &crtc->config.dpll;
4322 i9xx_update_pll_dividers(crtc, reduced_clock);
4324 is_sdvo = intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_SDVO) ||
4325 intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI);
4327 dpll = DPLL_VGA_MODE_DIS;
4329 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS))
4330 dpll |= DPLLB_MODE_LVDS;
4332 dpll |= DPLLB_MODE_DAC_SERIAL;
4335 if ((crtc->config.pixel_multiplier > 1) &&
4336 (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))) {
4337 dpll |= (crtc->config.pixel_multiplier - 1)
4338 << SDVO_MULTIPLIER_SHIFT_HIRES;
4340 dpll |= DPLL_DVO_HIGH_SPEED;
4342 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT))
4343 dpll |= DPLL_DVO_HIGH_SPEED;
4345 /* compute bitmask from p1 value */
4346 if (IS_PINEVIEW(dev))
4347 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW;
4349 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4350 if (IS_G4X(dev) && reduced_clock)
4351 dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
4353 switch (clock->p2) {
4355 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
4358 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
4361 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
4364 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
4367 if (INTEL_INFO(dev)->gen >= 4)
4368 dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT);
4370 if (is_sdvo && intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_TVOUT))
4371 dpll |= PLL_REF_INPUT_TVCLKINBC;
4372 else if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_TVOUT))
4373 /* XXX: just matching BIOS for now */
4374 /* dpll |= PLL_REF_INPUT_TVCLKINBC; */
4376 else if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
4377 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
4378 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
4380 dpll |= PLL_REF_INPUT_DREFCLK;
4382 dpll |= DPLL_VCO_ENABLE;
4383 I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE);
4384 POSTING_READ(DPLL(pipe));
4387 for_each_encoder_on_crtc(dev, &crtc->base, encoder)
4388 if (encoder->pre_pll_enable)
4389 encoder->pre_pll_enable(encoder);
4391 if (crtc->config.has_dp_encoder)
4392 intel_dp_set_m_n(crtc);
4394 I915_WRITE(DPLL(pipe), dpll);
4396 /* Wait for the clocks to stabilize. */
4397 POSTING_READ(DPLL(pipe));
4400 if (INTEL_INFO(dev)->gen >= 4) {
4404 if (crtc->config.pixel_multiplier > 1) {
4405 temp = (crtc->config.pixel_multiplier - 1)
4406 << DPLL_MD_UDI_MULTIPLIER_SHIFT;
4409 I915_WRITE(DPLL_MD(pipe), temp);
4411 /* The pixel multiplier can only be updated once the
4412 * DPLL is enabled and the clocks are stable.
4414 * So write it again.
4416 I915_WRITE(DPLL(pipe), dpll);
4420 static void i8xx_update_pll(struct intel_crtc *crtc,
4421 struct drm_display_mode *adjusted_mode,
4422 intel_clock_t *reduced_clock,
4425 struct drm_device *dev = crtc->base.dev;
4426 struct drm_i915_private *dev_priv = dev->dev_private;
4427 struct intel_encoder *encoder;
4428 int pipe = crtc->pipe;
4430 struct dpll *clock = &crtc->config.dpll;
4432 i9xx_update_pll_dividers(crtc, reduced_clock);
4434 dpll = DPLL_VGA_MODE_DIS;
4436 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)) {
4437 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4440 dpll |= PLL_P1_DIVIDE_BY_TWO;
4442 dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT;
4444 dpll |= PLL_P2_DIVIDE_BY_4;
4447 if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
4448 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
4449 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
4451 dpll |= PLL_REF_INPUT_DREFCLK;
4453 dpll |= DPLL_VCO_ENABLE;
4454 I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE);
4455 POSTING_READ(DPLL(pipe));
4458 for_each_encoder_on_crtc(dev, &crtc->base, encoder)
4459 if (encoder->pre_pll_enable)
4460 encoder->pre_pll_enable(encoder);
4462 I915_WRITE(DPLL(pipe), dpll);
4464 /* Wait for the clocks to stabilize. */
4465 POSTING_READ(DPLL(pipe));
4468 /* The pixel multiplier can only be updated once the
4469 * DPLL is enabled and the clocks are stable.
4471 * So write it again.
4473 I915_WRITE(DPLL(pipe), dpll);
4476 static void intel_set_pipe_timings(struct intel_crtc *intel_crtc,
4477 struct drm_display_mode *mode,
4478 struct drm_display_mode *adjusted_mode)
4480 struct drm_device *dev = intel_crtc->base.dev;
4481 struct drm_i915_private *dev_priv = dev->dev_private;
4482 enum pipe pipe = intel_crtc->pipe;
4483 enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder;
4484 uint32_t vsyncshift;
4486 if (!IS_GEN2(dev) && adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
4487 /* the chip adds 2 halflines automatically */
4488 adjusted_mode->crtc_vtotal -= 1;
4489 adjusted_mode->crtc_vblank_end -= 1;
4490 vsyncshift = adjusted_mode->crtc_hsync_start
4491 - adjusted_mode->crtc_htotal / 2;
4496 if (INTEL_INFO(dev)->gen > 3)
4497 I915_WRITE(VSYNCSHIFT(cpu_transcoder), vsyncshift);
4499 I915_WRITE(HTOTAL(cpu_transcoder),
4500 (adjusted_mode->crtc_hdisplay - 1) |
4501 ((adjusted_mode->crtc_htotal - 1) << 16));
4502 I915_WRITE(HBLANK(cpu_transcoder),
4503 (adjusted_mode->crtc_hblank_start - 1) |
4504 ((adjusted_mode->crtc_hblank_end - 1) << 16));
4505 I915_WRITE(HSYNC(cpu_transcoder),
4506 (adjusted_mode->crtc_hsync_start - 1) |
4507 ((adjusted_mode->crtc_hsync_end - 1) << 16));
4509 I915_WRITE(VTOTAL(cpu_transcoder),
4510 (adjusted_mode->crtc_vdisplay - 1) |
4511 ((adjusted_mode->crtc_vtotal - 1) << 16));
4512 I915_WRITE(VBLANK(cpu_transcoder),
4513 (adjusted_mode->crtc_vblank_start - 1) |
4514 ((adjusted_mode->crtc_vblank_end - 1) << 16));
4515 I915_WRITE(VSYNC(cpu_transcoder),
4516 (adjusted_mode->crtc_vsync_start - 1) |
4517 ((adjusted_mode->crtc_vsync_end - 1) << 16));
4519 /* Workaround: when the EDP input selection is B, the VTOTAL_B must be
4520 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
4521 * documented on the DDI_FUNC_CTL register description, EDP Input Select
4523 if (IS_HASWELL(dev) && cpu_transcoder == TRANSCODER_EDP &&
4524 (pipe == PIPE_B || pipe == PIPE_C))
4525 I915_WRITE(VTOTAL(pipe), I915_READ(VTOTAL(cpu_transcoder)));
4527 /* pipesrc controls the size that is scaled from, which should
4528 * always be the user's requested size.
4530 I915_WRITE(PIPESRC(pipe),
4531 ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1));
4534 static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc)
4536 struct drm_device *dev = intel_crtc->base.dev;
4537 struct drm_i915_private *dev_priv = dev->dev_private;
4540 pipeconf = I915_READ(PIPECONF(intel_crtc->pipe));
4542 if (intel_crtc->pipe == 0 && INTEL_INFO(dev)->gen < 4) {
4543 /* Enable pixel doubling when the dot clock is > 90% of the (display)
4546 * XXX: No double-wide on 915GM pipe B. Is that the only reason for the
4549 if (intel_crtc->config.requested_mode.clock >
4550 dev_priv->display.get_display_clock_speed(dev) * 9 / 10)
4551 pipeconf |= PIPECONF_DOUBLE_WIDE;
4553 pipeconf &= ~PIPECONF_DOUBLE_WIDE;
4556 /* default to 8bpc */
4557 pipeconf &= ~(PIPECONF_BPC_MASK | PIPECONF_DITHER_EN);
4558 if (intel_crtc->config.has_dp_encoder) {
4559 if (intel_crtc->config.dither) {
4560 pipeconf |= PIPECONF_6BPC |
4561 PIPECONF_DITHER_EN |
4562 PIPECONF_DITHER_TYPE_SP;
4566 if (IS_VALLEYVIEW(dev) && intel_pipe_has_type(&intel_crtc->base,
4567 INTEL_OUTPUT_EDP)) {
4568 if (intel_crtc->config.dither) {
4569 pipeconf |= PIPECONF_6BPC |
4571 I965_PIPECONF_ACTIVE;
4575 if (HAS_PIPE_CXSR(dev)) {
4576 if (intel_crtc->lowfreq_avail) {
4577 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
4578 pipeconf |= PIPECONF_CXSR_DOWNCLOCK;
4580 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
4581 pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK;
4585 pipeconf &= ~PIPECONF_INTERLACE_MASK;
4586 if (!IS_GEN2(dev) &&
4587 intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
4588 pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
4590 pipeconf |= PIPECONF_PROGRESSIVE;
4592 if (IS_VALLEYVIEW(dev)) {
4593 if (intel_crtc->config.limited_color_range)
4594 pipeconf |= PIPECONF_COLOR_RANGE_SELECT;
4596 pipeconf &= ~PIPECONF_COLOR_RANGE_SELECT;
4599 I915_WRITE(PIPECONF(intel_crtc->pipe), pipeconf);
4600 POSTING_READ(PIPECONF(intel_crtc->pipe));
4603 static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
4605 struct drm_framebuffer *fb)
4607 struct drm_device *dev = crtc->dev;
4608 struct drm_i915_private *dev_priv = dev->dev_private;
4609 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
4610 struct drm_display_mode *adjusted_mode =
4611 &intel_crtc->config.adjusted_mode;
4612 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
4613 int pipe = intel_crtc->pipe;
4614 int plane = intel_crtc->plane;
4615 int refclk, num_connectors = 0;
4616 intel_clock_t clock, reduced_clock;
4618 bool ok, has_reduced_clock = false, is_sdvo = false;
4619 bool is_lvds = false, is_tv = false;
4620 struct intel_encoder *encoder;
4621 const intel_limit_t *limit;
4624 for_each_encoder_on_crtc(dev, crtc, encoder) {
4625 switch (encoder->type) {
4626 case INTEL_OUTPUT_LVDS:
4629 case INTEL_OUTPUT_SDVO:
4630 case INTEL_OUTPUT_HDMI:
4632 if (encoder->needs_tv_clock)
4635 case INTEL_OUTPUT_TVOUT:
4643 refclk = i9xx_get_refclk(crtc, num_connectors);
4646 * Returns a set of divisors for the desired target clock with the given
4647 * refclk, or FALSE. The returned values represent the clock equation:
4648 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
4650 limit = intel_limit(crtc, refclk);
4651 ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL,
4654 DRM_ERROR("Couldn't find PLL settings for mode!\n");
4658 /* Ensure that the cursor is valid for the new mode before changing... */
4659 intel_crtc_update_cursor(crtc, true);
4661 if (is_lvds && dev_priv->lvds_downclock_avail) {
4663 * Ensure we match the reduced clock's P to the target clock.
4664 * If the clocks don't match, we can't switch the display clock
4665 * by using the FP0/FP1. In such case we will disable the LVDS
4666 * downclock feature.
4668 has_reduced_clock = limit->find_pll(limit, crtc,
4669 dev_priv->lvds_downclock,
4674 /* Compat-code for transition, will disappear. */
4675 if (!intel_crtc->config.clock_set) {
4676 intel_crtc->config.dpll.n = clock.n;
4677 intel_crtc->config.dpll.m1 = clock.m1;
4678 intel_crtc->config.dpll.m2 = clock.m2;
4679 intel_crtc->config.dpll.p1 = clock.p1;
4680 intel_crtc->config.dpll.p2 = clock.p2;
4683 if (is_sdvo && is_tv)
4684 i9xx_adjust_sdvo_tv_clock(intel_crtc);
4687 i8xx_update_pll(intel_crtc, adjusted_mode,
4688 has_reduced_clock ? &reduced_clock : NULL,
4690 else if (IS_VALLEYVIEW(dev))
4691 vlv_update_pll(intel_crtc);
4693 i9xx_update_pll(intel_crtc,
4694 has_reduced_clock ? &reduced_clock : NULL,
4697 /* Set up the display plane register */
4698 dspcntr = DISPPLANE_GAMMA_ENABLE;
4700 if (!IS_VALLEYVIEW(dev)) {
4702 dspcntr &= ~DISPPLANE_SEL_PIPE_MASK;
4704 dspcntr |= DISPPLANE_SEL_PIPE_B;
4707 DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B');
4708 drm_mode_debug_printmodeline(mode);
4710 intel_set_pipe_timings(intel_crtc, mode, adjusted_mode);
4712 /* pipesrc and dspsize control the size that is scaled from,
4713 * which should always be the user's requested size.
4715 I915_WRITE(DSPSIZE(plane),
4716 ((mode->vdisplay - 1) << 16) |
4717 (mode->hdisplay - 1));
4718 I915_WRITE(DSPPOS(plane), 0);
4720 i9xx_set_pipeconf(intel_crtc);
4722 intel_enable_pipe(dev_priv, pipe, false);
4724 intel_wait_for_vblank(dev, pipe);
4726 I915_WRITE(DSPCNTR(plane), dspcntr);
4727 POSTING_READ(DSPCNTR(plane));
4729 ret = intel_pipe_set_base(crtc, x, y, fb);
4731 intel_update_watermarks(dev);
4736 static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
4737 struct intel_crtc_config *pipe_config)
4739 struct drm_device *dev = crtc->base.dev;
4740 struct drm_i915_private *dev_priv = dev->dev_private;
4743 tmp = I915_READ(PIPECONF(crtc->pipe));
4744 if (!(tmp & PIPECONF_ENABLE))
4750 static void ironlake_init_pch_refclk(struct drm_device *dev)
4752 struct drm_i915_private *dev_priv = dev->dev_private;
4753 struct drm_mode_config *mode_config = &dev->mode_config;
4754 struct intel_encoder *encoder;
4756 bool has_lvds = false;
4757 bool has_cpu_edp = false;
4758 bool has_pch_edp = false;
4759 bool has_panel = false;
4760 bool has_ck505 = false;
4761 bool can_ssc = false;
4763 /* We need to take the global config into account */
4764 list_for_each_entry(encoder, &mode_config->encoder_list,
4766 switch (encoder->type) {
4767 case INTEL_OUTPUT_LVDS:
4771 case INTEL_OUTPUT_EDP:
4773 if (intel_encoder_is_pch_edp(&encoder->base))
4781 if (HAS_PCH_IBX(dev)) {
4782 has_ck505 = dev_priv->display_clock_mode;
4783 can_ssc = has_ck505;
4789 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_pch_edp %d has_cpu_edp %d has_ck505 %d\n",
4790 has_panel, has_lvds, has_pch_edp, has_cpu_edp,
4793 /* Ironlake: try to setup display ref clock before DPLL
4794 * enabling. This is only under driver's control after
4795 * PCH B stepping, previous chipset stepping should be
4796 * ignoring this setting.
4798 val = I915_READ(PCH_DREF_CONTROL);
4800 /* As we must carefully and slowly disable/enable each source in turn,
4801 * compute the final state we want first and check if we need to
4802 * make any changes at all.
4805 final &= ~DREF_NONSPREAD_SOURCE_MASK;
4807 final |= DREF_NONSPREAD_CK505_ENABLE;
4809 final |= DREF_NONSPREAD_SOURCE_ENABLE;
4811 final &= ~DREF_SSC_SOURCE_MASK;
4812 final &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
4813 final &= ~DREF_SSC1_ENABLE;
4816 final |= DREF_SSC_SOURCE_ENABLE;
4818 if (intel_panel_use_ssc(dev_priv) && can_ssc)
4819 final |= DREF_SSC1_ENABLE;
4822 if (intel_panel_use_ssc(dev_priv) && can_ssc)
4823 final |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
4825 final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
4827 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
4829 final |= DREF_SSC_SOURCE_DISABLE;
4830 final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
4836 /* Always enable nonspread source */
4837 val &= ~DREF_NONSPREAD_SOURCE_MASK;
4840 val |= DREF_NONSPREAD_CK505_ENABLE;
4842 val |= DREF_NONSPREAD_SOURCE_ENABLE;
4845 val &= ~DREF_SSC_SOURCE_MASK;
4846 val |= DREF_SSC_SOURCE_ENABLE;
4848 /* SSC must be turned on before enabling the CPU output */
4849 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
4850 DRM_DEBUG_KMS("Using SSC on panel\n");
4851 val |= DREF_SSC1_ENABLE;
4853 val &= ~DREF_SSC1_ENABLE;
4855 /* Get SSC going before enabling the outputs */
4856 I915_WRITE(PCH_DREF_CONTROL, val);
4857 POSTING_READ(PCH_DREF_CONTROL);
4860 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
4862 /* Enable CPU source on CPU attached eDP */
4864 if (intel_panel_use_ssc(dev_priv) && can_ssc) {
4865 DRM_DEBUG_KMS("Using SSC on eDP\n");
4866 val |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
4869 val |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
4871 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
4873 I915_WRITE(PCH_DREF_CONTROL, val);
4874 POSTING_READ(PCH_DREF_CONTROL);
4877 DRM_DEBUG_KMS("Disabling SSC entirely\n");
4879 val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
4881 /* Turn off CPU output */
4882 val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
4884 I915_WRITE(PCH_DREF_CONTROL, val);
4885 POSTING_READ(PCH_DREF_CONTROL);
4888 /* Turn off the SSC source */
4889 val &= ~DREF_SSC_SOURCE_MASK;
4890 val |= DREF_SSC_SOURCE_DISABLE;
4893 val &= ~DREF_SSC1_ENABLE;
4895 I915_WRITE(PCH_DREF_CONTROL, val);
4896 POSTING_READ(PCH_DREF_CONTROL);
4900 BUG_ON(val != final);
4903 /* Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O. */
4904 static void lpt_init_pch_refclk(struct drm_device *dev)
4906 struct drm_i915_private *dev_priv = dev->dev_private;
4907 struct drm_mode_config *mode_config = &dev->mode_config;
4908 struct intel_encoder *encoder;
4909 bool has_vga = false;
4910 bool is_sdv = false;
4913 list_for_each_entry(encoder, &mode_config->encoder_list, base.head) {
4914 switch (encoder->type) {
4915 case INTEL_OUTPUT_ANALOG:
4924 mutex_lock(&dev_priv->dpio_lock);
4926 /* XXX: Rip out SDV support once Haswell ships for real. */
4927 if (IS_HASWELL(dev) && (dev->pci_device & 0xFF00) == 0x0C00)
4930 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
4931 tmp &= ~SBI_SSCCTL_DISABLE;
4932 tmp |= SBI_SSCCTL_PATHALT;
4933 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
4937 tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
4938 tmp &= ~SBI_SSCCTL_PATHALT;
4939 intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
4942 tmp = I915_READ(SOUTH_CHICKEN2);
4943 tmp |= FDI_MPHY_IOSFSB_RESET_CTL;
4944 I915_WRITE(SOUTH_CHICKEN2, tmp);
4946 if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2) &
4947 FDI_MPHY_IOSFSB_RESET_STATUS, 100))
4948 DRM_ERROR("FDI mPHY reset assert timeout\n");
4950 tmp = I915_READ(SOUTH_CHICKEN2);
4951 tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL;
4952 I915_WRITE(SOUTH_CHICKEN2, tmp);
4954 if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2) &
4955 FDI_MPHY_IOSFSB_RESET_STATUS) == 0,
4957 DRM_ERROR("FDI mPHY reset de-assert timeout\n");
4960 tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY);
4961 tmp &= ~(0xFF << 24);
4962 tmp |= (0x12 << 24);
4963 intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY);
4966 tmp = intel_sbi_read(dev_priv, 0x800C, SBI_MPHY);
4968 intel_sbi_write(dev_priv, 0x800C, tmp, SBI_MPHY);
4971 tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY);
4973 intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY);
4975 tmp = intel_sbi_read(dev_priv, 0x2108, SBI_MPHY);
4977 intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY);
4980 tmp = intel_sbi_read(dev_priv, 0x2038, SBI_MPHY);
4981 tmp |= (0x3F << 24) | (0xF << 20) | (0xF << 16);
4982 intel_sbi_write(dev_priv, 0x2038, tmp, SBI_MPHY);
4984 tmp = intel_sbi_read(dev_priv, 0x2138, SBI_MPHY);
4985 tmp |= (0x3F << 24) | (0xF << 20) | (0xF << 16);
4986 intel_sbi_write(dev_priv, 0x2138, tmp, SBI_MPHY);
4988 tmp = intel_sbi_read(dev_priv, 0x203C, SBI_MPHY);
4990 intel_sbi_write(dev_priv, 0x203C, tmp, SBI_MPHY);
4992 tmp = intel_sbi_read(dev_priv, 0x213C, SBI_MPHY);
4994 intel_sbi_write(dev_priv, 0x213C, tmp, SBI_MPHY);
4997 tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY);
4998 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
4999 intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY);
5001 tmp = intel_sbi_read(dev_priv, 0x216C, SBI_MPHY);
5002 tmp |= (1 << 24) | (1 << 21) | (1 << 18);
5003 intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY);
5006 tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY);
5009 intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY);
5011 tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY);
5014 intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY);
5017 tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY);
5020 intel_sbi_write(dev_priv, 0x208C, tmp, SBI_MPHY);
5022 tmp = intel_sbi_read(dev_priv, 0x218C, SBI_MPHY);
5025 intel_sbi_write(dev_priv, 0x218C, tmp, SBI_MPHY);
5027 tmp = intel_sbi_read(dev_priv, 0x2098, SBI_MPHY);
5028 tmp &= ~(0xFF << 16);
5029 tmp |= (0x1C << 16);
5030 intel_sbi_write(dev_priv, 0x2098, tmp, SBI_MPHY);
5032 tmp = intel_sbi_read(dev_priv, 0x2198, SBI_MPHY);
5033 tmp &= ~(0xFF << 16);
5034 tmp |= (0x1C << 16);
5035 intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY);
5038 tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY);
5040 intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY);
5042 tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY);
5044 intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY);
5046 tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY);
5047 tmp &= ~(0xF << 28);
5049 intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY);
5051 tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY);
5052 tmp &= ~(0xF << 28);
5054 intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY);
5057 /* ULT uses SBI_GEN0, but ULT doesn't have VGA, so we don't care. */
5058 tmp = intel_sbi_read(dev_priv, SBI_DBUFF0, SBI_ICLK);
5059 tmp |= SBI_DBUFF0_ENABLE;
5060 intel_sbi_write(dev_priv, SBI_DBUFF0, tmp, SBI_ICLK);
5062 mutex_unlock(&dev_priv->dpio_lock);
5066 * Initialize reference clocks when the driver loads
5068 void intel_init_pch_refclk(struct drm_device *dev)
5070 if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
5071 ironlake_init_pch_refclk(dev);
5072 else if (HAS_PCH_LPT(dev))
5073 lpt_init_pch_refclk(dev);
5076 static int ironlake_get_refclk(struct drm_crtc *crtc)
5078 struct drm_device *dev = crtc->dev;
5079 struct drm_i915_private *dev_priv = dev->dev_private;
5080 struct intel_encoder *encoder;
5081 struct intel_encoder *edp_encoder = NULL;
5082 int num_connectors = 0;
5083 bool is_lvds = false;
5085 for_each_encoder_on_crtc(dev, crtc, encoder) {
5086 switch (encoder->type) {
5087 case INTEL_OUTPUT_LVDS:
5090 case INTEL_OUTPUT_EDP:
5091 edp_encoder = encoder;
5097 if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
5098 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
5099 dev_priv->lvds_ssc_freq);
5100 return dev_priv->lvds_ssc_freq * 1000;
5106 static void ironlake_set_pipeconf(struct drm_crtc *crtc,
5107 struct drm_display_mode *adjusted_mode,
5110 struct drm_i915_private *dev_priv = crtc->dev->dev_private;
5111 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5112 int pipe = intel_crtc->pipe;
5115 val = I915_READ(PIPECONF(pipe));
5117 val &= ~PIPECONF_BPC_MASK;
5118 switch (intel_crtc->config.pipe_bpp) {
5120 val |= PIPECONF_6BPC;
5123 val |= PIPECONF_8BPC;
5126 val |= PIPECONF_10BPC;
5129 val |= PIPECONF_12BPC;
5132 /* Case prevented by intel_choose_pipe_bpp_dither. */
5136 val &= ~(PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK);
5138 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
5140 val &= ~PIPECONF_INTERLACE_MASK;
5141 if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE)
5142 val |= PIPECONF_INTERLACED_ILK;
5144 val |= PIPECONF_PROGRESSIVE;
5146 if (intel_crtc->config.limited_color_range)
5147 val |= PIPECONF_COLOR_RANGE_SELECT;
5149 val &= ~PIPECONF_COLOR_RANGE_SELECT;
5151 I915_WRITE(PIPECONF(pipe), val);
5152 POSTING_READ(PIPECONF(pipe));
5156 * Set up the pipe CSC unit.
5158 * Currently only full range RGB to limited range RGB conversion
5159 * is supported, but eventually this should handle various
5160 * RGB<->YCbCr scenarios as well.
5162 static void intel_set_pipe_csc(struct drm_crtc *crtc)
5164 struct drm_device *dev = crtc->dev;
5165 struct drm_i915_private *dev_priv = dev->dev_private;
5166 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5167 int pipe = intel_crtc->pipe;
5168 uint16_t coeff = 0x7800; /* 1.0 */
5171 * TODO: Check what kind of values actually come out of the pipe
5172 * with these coeff/postoff values and adjust to get the best
5173 * accuracy. Perhaps we even need to take the bpc value into
5177 if (intel_crtc->config.limited_color_range)
5178 coeff = ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */
5181 * GY/GU and RY/RU should be the other way around according
5182 * to BSpec, but reality doesn't agree. Just set them up in
5183 * a way that results in the correct picture.
5185 I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe), coeff << 16);
5186 I915_WRITE(PIPE_CSC_COEFF_BY(pipe), 0);
5188 I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe), coeff);
5189 I915_WRITE(PIPE_CSC_COEFF_BU(pipe), 0);
5191 I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe), 0);
5192 I915_WRITE(PIPE_CSC_COEFF_BV(pipe), coeff << 16);
5194 I915_WRITE(PIPE_CSC_PREOFF_HI(pipe), 0);
5195 I915_WRITE(PIPE_CSC_PREOFF_ME(pipe), 0);
5196 I915_WRITE(PIPE_CSC_PREOFF_LO(pipe), 0);
5198 if (INTEL_INFO(dev)->gen > 6) {
5199 uint16_t postoff = 0;
5201 if (intel_crtc->config.limited_color_range)
5202 postoff = (16 * (1 << 13) / 255) & 0x1fff;
5204 I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), postoff);
5205 I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff);
5206 I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), postoff);
5208 I915_WRITE(PIPE_CSC_MODE(pipe), 0);
5210 uint32_t mode = CSC_MODE_YUV_TO_RGB;
5212 if (intel_crtc->config.limited_color_range)
5213 mode |= CSC_BLACK_SCREEN_OFFSET;
5215 I915_WRITE(PIPE_CSC_MODE(pipe), mode);
5219 static void haswell_set_pipeconf(struct drm_crtc *crtc,
5220 struct drm_display_mode *adjusted_mode,
5223 struct drm_i915_private *dev_priv = crtc->dev->dev_private;
5224 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5225 enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder;
5228 val = I915_READ(PIPECONF(cpu_transcoder));
5230 val &= ~(PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK);
5232 val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
5234 val &= ~PIPECONF_INTERLACE_MASK_HSW;
5235 if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE)
5236 val |= PIPECONF_INTERLACED_ILK;
5238 val |= PIPECONF_PROGRESSIVE;
5240 I915_WRITE(PIPECONF(cpu_transcoder), val);
5241 POSTING_READ(PIPECONF(cpu_transcoder));
5244 static bool ironlake_compute_clocks(struct drm_crtc *crtc,
5245 struct drm_display_mode *adjusted_mode,
5246 intel_clock_t *clock,
5247 bool *has_reduced_clock,
5248 intel_clock_t *reduced_clock)
5250 struct drm_device *dev = crtc->dev;
5251 struct drm_i915_private *dev_priv = dev->dev_private;
5252 struct intel_encoder *intel_encoder;
5254 const intel_limit_t *limit;
5255 bool ret, is_sdvo = false, is_tv = false, is_lvds = false;
5257 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
5258 switch (intel_encoder->type) {
5259 case INTEL_OUTPUT_LVDS:
5262 case INTEL_OUTPUT_SDVO:
5263 case INTEL_OUTPUT_HDMI:
5265 if (intel_encoder->needs_tv_clock)
5268 case INTEL_OUTPUT_TVOUT:
5274 refclk = ironlake_get_refclk(crtc);
5277 * Returns a set of divisors for the desired target clock with the given
5278 * refclk, or FALSE. The returned values represent the clock equation:
5279 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
5281 limit = intel_limit(crtc, refclk);
5282 ret = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL,
5287 if (is_lvds && dev_priv->lvds_downclock_avail) {
5289 * Ensure we match the reduced clock's P to the target clock.
5290 * If the clocks don't match, we can't switch the display clock
5291 * by using the FP0/FP1. In such case we will disable the LVDS
5292 * downclock feature.
5294 *has_reduced_clock = limit->find_pll(limit, crtc,
5295 dev_priv->lvds_downclock,
5301 if (is_sdvo && is_tv)
5302 i9xx_adjust_sdvo_tv_clock(to_intel_crtc(crtc));
5307 static void cpt_enable_fdi_bc_bifurcation(struct drm_device *dev)
5309 struct drm_i915_private *dev_priv = dev->dev_private;
5312 temp = I915_READ(SOUTH_CHICKEN1);
5313 if (temp & FDI_BC_BIFURCATION_SELECT)
5316 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
5317 WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
5319 temp |= FDI_BC_BIFURCATION_SELECT;
5320 DRM_DEBUG_KMS("enabling fdi C rx\n");
5321 I915_WRITE(SOUTH_CHICKEN1, temp);
5322 POSTING_READ(SOUTH_CHICKEN1);
5325 static bool ironlake_check_fdi_lanes(struct intel_crtc *intel_crtc)
5327 struct drm_device *dev = intel_crtc->base.dev;
5328 struct drm_i915_private *dev_priv = dev->dev_private;
5329 struct intel_crtc *pipe_B_crtc =
5330 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]);
5332 DRM_DEBUG_KMS("checking fdi config on pipe %i, lanes %i\n",
5333 intel_crtc->pipe, intel_crtc->fdi_lanes);
5334 if (intel_crtc->fdi_lanes > 4) {
5335 DRM_DEBUG_KMS("invalid fdi lane config on pipe %i: %i lanes\n",
5336 intel_crtc->pipe, intel_crtc->fdi_lanes);
5337 /* Clamp lanes to avoid programming the hw with bogus values. */
5338 intel_crtc->fdi_lanes = 4;
5343 if (INTEL_INFO(dev)->num_pipes == 2)
5346 switch (intel_crtc->pipe) {
5350 if (dev_priv->pipe_to_crtc_mapping[PIPE_C]->enabled &&
5351 intel_crtc->fdi_lanes > 2) {
5352 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %i: %i lanes\n",
5353 intel_crtc->pipe, intel_crtc->fdi_lanes);
5354 /* Clamp lanes to avoid programming the hw with bogus values. */
5355 intel_crtc->fdi_lanes = 2;
5360 if (intel_crtc->fdi_lanes > 2)
5361 WARN_ON(I915_READ(SOUTH_CHICKEN1) & FDI_BC_BIFURCATION_SELECT);
5363 cpt_enable_fdi_bc_bifurcation(dev);
5367 if (!pipe_B_crtc->base.enabled || pipe_B_crtc->fdi_lanes <= 2) {
5368 if (intel_crtc->fdi_lanes > 2) {
5369 DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %i: %i lanes\n",
5370 intel_crtc->pipe, intel_crtc->fdi_lanes);
5371 /* Clamp lanes to avoid programming the hw with bogus values. */
5372 intel_crtc->fdi_lanes = 2;
5377 DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
5381 cpt_enable_fdi_bc_bifurcation(dev);
5389 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp)
5392 * Account for spread spectrum to avoid
5393 * oversubscribing the link. Max center spread
5394 * is 2.5%; use 5% for safety's sake.
5396 u32 bps = target_clock * bpp * 21 / 20;
5397 return bps / (link_bw * 8) + 1;
5400 void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc,
5401 struct intel_link_m_n *m_n)
5403 struct drm_device *dev = crtc->base.dev;
5404 struct drm_i915_private *dev_priv = dev->dev_private;
5405 int pipe = crtc->pipe;
5407 I915_WRITE(TRANSDATA_M1(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
5408 I915_WRITE(TRANSDATA_N1(pipe), m_n->gmch_n);
5409 I915_WRITE(TRANSDPLINK_M1(pipe), m_n->link_m);
5410 I915_WRITE(TRANSDPLINK_N1(pipe), m_n->link_n);
5413 void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc,
5414 struct intel_link_m_n *m_n)
5416 struct drm_device *dev = crtc->base.dev;
5417 struct drm_i915_private *dev_priv = dev->dev_private;
5418 int pipe = crtc->pipe;
5419 enum transcoder transcoder = crtc->cpu_transcoder;
5421 if (INTEL_INFO(dev)->gen >= 5) {
5422 I915_WRITE(PIPE_DATA_M1(transcoder), TU_SIZE(m_n->tu) | m_n->gmch_m);
5423 I915_WRITE(PIPE_DATA_N1(transcoder), m_n->gmch_n);
5424 I915_WRITE(PIPE_LINK_M1(transcoder), m_n->link_m);
5425 I915_WRITE(PIPE_LINK_N1(transcoder), m_n->link_n);
5427 I915_WRITE(PIPE_GMCH_DATA_M(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
5428 I915_WRITE(PIPE_GMCH_DATA_N(pipe), m_n->gmch_n);
5429 I915_WRITE(PIPE_DP_LINK_M(pipe), m_n->link_m);
5430 I915_WRITE(PIPE_DP_LINK_N(pipe), m_n->link_n);
5434 static void ironlake_fdi_set_m_n(struct drm_crtc *crtc)
5436 struct drm_device *dev = crtc->dev;
5437 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5438 struct drm_display_mode *adjusted_mode =
5439 &intel_crtc->config.adjusted_mode;
5440 struct intel_link_m_n m_n = {0};
5441 int target_clock, lane, link_bw;
5443 /* FDI is a binary signal running at ~2.7GHz, encoding
5444 * each output octet as 10 bits. The actual frequency
5445 * is stored as a divider into a 100MHz clock, and the
5446 * mode pixel clock is stored in units of 1KHz.
5447 * Hence the bw of each lane in terms of the mode signal
5450 link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10;
5452 if (intel_crtc->config.pixel_target_clock)
5453 target_clock = intel_crtc->config.pixel_target_clock;
5455 target_clock = adjusted_mode->clock;
5457 lane = ironlake_get_lanes_required(target_clock, link_bw,
5458 intel_crtc->config.pipe_bpp);
5460 intel_crtc->fdi_lanes = lane;
5462 if (intel_crtc->config.pixel_multiplier > 1)
5463 link_bw *= intel_crtc->config.pixel_multiplier;
5464 intel_link_compute_m_n(intel_crtc->config.pipe_bpp, lane, target_clock,
5467 intel_cpu_transcoder_set_m_n(intel_crtc, &m_n);
5470 static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc,
5471 intel_clock_t *clock, u32 *fp,
5472 intel_clock_t *reduced_clock, u32 *fp2)
5474 struct drm_crtc *crtc = &intel_crtc->base;
5475 struct drm_device *dev = crtc->dev;
5476 struct drm_i915_private *dev_priv = dev->dev_private;
5477 struct intel_encoder *intel_encoder;
5479 int factor, num_connectors = 0;
5480 bool is_lvds = false, is_sdvo = false, is_tv = false;
5482 for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
5483 switch (intel_encoder->type) {
5484 case INTEL_OUTPUT_LVDS:
5487 case INTEL_OUTPUT_SDVO:
5488 case INTEL_OUTPUT_HDMI:
5490 if (intel_encoder->needs_tv_clock)
5493 case INTEL_OUTPUT_TVOUT:
5501 /* Enable autotuning of the PLL clock (if permissible) */
5504 if ((intel_panel_use_ssc(dev_priv) &&
5505 dev_priv->lvds_ssc_freq == 100) ||
5506 (HAS_PCH_IBX(dev) && intel_is_dual_link_lvds(dev)))
5508 } else if (is_sdvo && is_tv)
5511 if (clock->m < factor * clock->n)
5514 if (fp2 && (reduced_clock->m < factor * reduced_clock->n))
5520 dpll |= DPLLB_MODE_LVDS;
5522 dpll |= DPLLB_MODE_DAC_SERIAL;
5524 if (intel_crtc->config.pixel_multiplier > 1) {
5525 dpll |= (intel_crtc->config.pixel_multiplier - 1)
5526 << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT;
5528 dpll |= DPLL_DVO_HIGH_SPEED;
5530 if (intel_crtc->config.has_dp_encoder &&
5531 intel_crtc->config.has_pch_encoder)
5532 dpll |= DPLL_DVO_HIGH_SPEED;
5534 /* compute bitmask from p1 value */
5535 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
5537 dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
5539 switch (clock->p2) {
5541 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
5544 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
5547 dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
5550 dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
5554 if (is_sdvo && is_tv)
5555 dpll |= PLL_REF_INPUT_TVCLKINBC;
5557 /* XXX: just matching BIOS for now */
5558 /* dpll |= PLL_REF_INPUT_TVCLKINBC; */
5560 else if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2)
5561 dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
5563 dpll |= PLL_REF_INPUT_DREFCLK;
5568 static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
5570 struct drm_framebuffer *fb)
5572 struct drm_device *dev = crtc->dev;
5573 struct drm_i915_private *dev_priv = dev->dev_private;
5574 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5575 struct drm_display_mode *adjusted_mode =
5576 &intel_crtc->config.adjusted_mode;
5577 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
5578 int pipe = intel_crtc->pipe;
5579 int plane = intel_crtc->plane;
5580 int num_connectors = 0;
5581 intel_clock_t clock, reduced_clock;
5582 u32 dpll, fp = 0, fp2 = 0;
5583 bool ok, has_reduced_clock = false;
5584 bool is_lvds = false;
5585 struct intel_encoder *encoder;
5587 bool dither, fdi_config_ok;
5589 for_each_encoder_on_crtc(dev, crtc, encoder) {
5590 switch (encoder->type) {
5591 case INTEL_OUTPUT_LVDS:
5599 WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)),
5600 "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev));
5602 intel_crtc->cpu_transcoder = pipe;
5604 ok = ironlake_compute_clocks(crtc, adjusted_mode, &clock,
5605 &has_reduced_clock, &reduced_clock);
5607 DRM_ERROR("Couldn't find PLL settings for mode!\n");
5610 /* Compat-code for transition, will disappear. */
5611 if (!intel_crtc->config.clock_set) {
5612 intel_crtc->config.dpll.n = clock.n;
5613 intel_crtc->config.dpll.m1 = clock.m1;
5614 intel_crtc->config.dpll.m2 = clock.m2;
5615 intel_crtc->config.dpll.p1 = clock.p1;
5616 intel_crtc->config.dpll.p2 = clock.p2;
5619 /* Ensure that the cursor is valid for the new mode before changing... */
5620 intel_crtc_update_cursor(crtc, true);
5622 /* determine panel color depth */
5623 dither = intel_crtc->config.dither;
5624 if (is_lvds && dev_priv->lvds_dither)
5627 fp = clock.n << 16 | clock.m1 << 8 | clock.m2;
5628 if (has_reduced_clock)
5629 fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 |
5632 dpll = ironlake_compute_dpll(intel_crtc, &clock, &fp, &reduced_clock,
5633 has_reduced_clock ? &fp2 : NULL);
5635 DRM_DEBUG_KMS("Mode for pipe %d:\n", pipe);
5636 drm_mode_debug_printmodeline(mode);
5638 /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
5639 if (intel_crtc->config.has_pch_encoder) {
5640 struct intel_pch_pll *pll;
5642 pll = intel_get_pch_pll(intel_crtc, dpll, fp);
5644 DRM_DEBUG_DRIVER("failed to find PLL for pipe %d\n",
5649 intel_put_pch_pll(intel_crtc);
5651 if (intel_crtc->config.has_dp_encoder)
5652 intel_dp_set_m_n(intel_crtc);
5654 for_each_encoder_on_crtc(dev, crtc, encoder)
5655 if (encoder->pre_pll_enable)
5656 encoder->pre_pll_enable(encoder);
5658 if (intel_crtc->pch_pll) {
5659 I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll);
5661 /* Wait for the clocks to stabilize. */
5662 POSTING_READ(intel_crtc->pch_pll->pll_reg);
5665 /* The pixel multiplier can only be updated once the
5666 * DPLL is enabled and the clocks are stable.
5668 * So write it again.
5670 I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll);
5673 intel_crtc->lowfreq_avail = false;
5674 if (intel_crtc->pch_pll) {
5675 if (is_lvds && has_reduced_clock && i915_powersave) {
5676 I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp2);
5677 intel_crtc->lowfreq_avail = true;
5679 I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp);
5683 intel_set_pipe_timings(intel_crtc, mode, adjusted_mode);
5685 /* Note, this also computes intel_crtc->fdi_lanes which is used below in
5686 * ironlake_check_fdi_lanes. */
5687 intel_crtc->fdi_lanes = 0;
5688 if (intel_crtc->config.has_pch_encoder)
5689 ironlake_fdi_set_m_n(crtc);
5691 fdi_config_ok = ironlake_check_fdi_lanes(intel_crtc);
5693 ironlake_set_pipeconf(crtc, adjusted_mode, dither);
5695 intel_wait_for_vblank(dev, pipe);
5697 /* Set up the display plane register */
5698 I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE);
5699 POSTING_READ(DSPCNTR(plane));
5701 ret = intel_pipe_set_base(crtc, x, y, fb);
5703 intel_update_watermarks(dev);
5705 intel_update_linetime_watermarks(dev, pipe, adjusted_mode);
5707 return fdi_config_ok ? ret : -EINVAL;
5710 static bool ironlake_get_pipe_config(struct intel_crtc *crtc,
5711 struct intel_crtc_config *pipe_config)
5713 struct drm_device *dev = crtc->base.dev;
5714 struct drm_i915_private *dev_priv = dev->dev_private;
5717 tmp = I915_READ(PIPECONF(crtc->pipe));
5718 if (!(tmp & PIPECONF_ENABLE))
5721 if (I915_READ(TRANSCONF(crtc->pipe)) & TRANS_ENABLE)
5722 pipe_config->has_pch_encoder = true;
5727 static void haswell_modeset_global_resources(struct drm_device *dev)
5729 struct drm_i915_private *dev_priv = dev->dev_private;
5730 bool enable = false;
5731 struct intel_crtc *crtc;
5732 struct intel_encoder *encoder;
5734 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
5735 if (crtc->pipe != PIPE_A && crtc->base.enabled)
5737 /* XXX: Should check for edp transcoder here, but thanks to init
5738 * sequence that's not yet available. Just in case desktop eDP
5739 * on PORT D is possible on haswell, too. */
5742 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
5744 if (encoder->type != INTEL_OUTPUT_EDP &&
5745 encoder->connectors_active)
5749 /* Even the eDP panel fitter is outside the always-on well. */
5750 if (dev_priv->pch_pf_size)
5753 intel_set_power_well(dev, enable);
5756 static int haswell_crtc_mode_set(struct drm_crtc *crtc,
5758 struct drm_framebuffer *fb)
5760 struct drm_device *dev = crtc->dev;
5761 struct drm_i915_private *dev_priv = dev->dev_private;
5762 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5763 struct drm_display_mode *adjusted_mode =
5764 &intel_crtc->config.adjusted_mode;
5765 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
5766 int pipe = intel_crtc->pipe;
5767 int plane = intel_crtc->plane;
5768 int num_connectors = 0;
5769 bool is_cpu_edp = false;
5770 struct intel_encoder *encoder;
5774 for_each_encoder_on_crtc(dev, crtc, encoder) {
5775 switch (encoder->type) {
5776 case INTEL_OUTPUT_EDP:
5777 if (!intel_encoder_is_pch_edp(&encoder->base))
5786 intel_crtc->cpu_transcoder = TRANSCODER_EDP;
5788 intel_crtc->cpu_transcoder = pipe;
5790 /* We are not sure yet this won't happen. */
5791 WARN(!HAS_PCH_LPT(dev), "Unexpected PCH type %d\n",
5792 INTEL_PCH_TYPE(dev));
5794 WARN(num_connectors != 1, "%d connectors attached to pipe %c\n",
5795 num_connectors, pipe_name(pipe));
5797 WARN_ON(I915_READ(PIPECONF(intel_crtc->cpu_transcoder)) &
5798 (PIPECONF_ENABLE | I965_PIPECONF_ACTIVE));
5800 WARN_ON(I915_READ(DSPCNTR(plane)) & DISPLAY_PLANE_ENABLE);
5802 if (!intel_ddi_pll_mode_set(crtc, adjusted_mode->clock))
5805 /* Ensure that the cursor is valid for the new mode before changing... */
5806 intel_crtc_update_cursor(crtc, true);
5808 /* determine panel color depth */
5809 dither = intel_crtc->config.dither;
5811 DRM_DEBUG_KMS("Mode for pipe %d:\n", pipe);
5812 drm_mode_debug_printmodeline(mode);
5814 if (intel_crtc->config.has_dp_encoder)
5815 intel_dp_set_m_n(intel_crtc);
5817 intel_crtc->lowfreq_avail = false;
5819 intel_set_pipe_timings(intel_crtc, mode, adjusted_mode);
5821 if (intel_crtc->config.has_pch_encoder)
5822 ironlake_fdi_set_m_n(crtc);
5824 haswell_set_pipeconf(crtc, adjusted_mode, dither);
5826 intel_set_pipe_csc(crtc);
5828 /* Set up the display plane register */
5829 I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE | DISPPLANE_PIPE_CSC_ENABLE);
5830 POSTING_READ(DSPCNTR(plane));
5832 ret = intel_pipe_set_base(crtc, x, y, fb);
5834 intel_update_watermarks(dev);
5836 intel_update_linetime_watermarks(dev, pipe, adjusted_mode);
5841 static bool haswell_get_pipe_config(struct intel_crtc *crtc,
5842 struct intel_crtc_config *pipe_config)
5844 struct drm_device *dev = crtc->base.dev;
5845 struct drm_i915_private *dev_priv = dev->dev_private;
5848 tmp = I915_READ(PIPECONF(crtc->cpu_transcoder));
5849 if (!(tmp & PIPECONF_ENABLE))
5853 * aswell has only FDI/PCH transcoder A. It is which is connected to
5854 * DDI E. So just check whether this pipe is wired to DDI E and whether
5855 * the PCH transcoder is on.
5857 tmp = I915_READ(TRANS_DDI_FUNC_CTL(crtc->pipe));
5858 if ((tmp & TRANS_DDI_PORT_MASK) == TRANS_DDI_SELECT_PORT(PORT_E) &&
5859 I915_READ(TRANSCONF(PIPE_A)) & TRANS_ENABLE)
5860 pipe_config->has_pch_encoder = true;
5866 static int intel_crtc_mode_set(struct drm_crtc *crtc,
5868 struct drm_framebuffer *fb)
5870 struct drm_device *dev = crtc->dev;
5871 struct drm_i915_private *dev_priv = dev->dev_private;
5872 struct drm_encoder_helper_funcs *encoder_funcs;
5873 struct intel_encoder *encoder;
5874 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5875 struct drm_display_mode *adjusted_mode =
5876 &intel_crtc->config.adjusted_mode;
5877 struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
5878 int pipe = intel_crtc->pipe;
5881 drm_vblank_pre_modeset(dev, pipe);
5883 ret = dev_priv->display.crtc_mode_set(crtc, x, y, fb);
5885 drm_vblank_post_modeset(dev, pipe);
5890 for_each_encoder_on_crtc(dev, crtc, encoder) {
5891 DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
5892 encoder->base.base.id,
5893 drm_get_encoder_name(&encoder->base),
5894 mode->base.id, mode->name);
5895 if (encoder->mode_set) {
5896 encoder->mode_set(encoder);
5898 encoder_funcs = encoder->base.helper_private;
5899 encoder_funcs->mode_set(&encoder->base, mode, adjusted_mode);
5906 static bool intel_eld_uptodate(struct drm_connector *connector,
5907 int reg_eldv, uint32_t bits_eldv,
5908 int reg_elda, uint32_t bits_elda,
5911 struct drm_i915_private *dev_priv = connector->dev->dev_private;
5912 uint8_t *eld = connector->eld;
5915 i = I915_READ(reg_eldv);
5924 i = I915_READ(reg_elda);
5926 I915_WRITE(reg_elda, i);
5928 for (i = 0; i < eld[2]; i++)
5929 if (I915_READ(reg_edid) != *((uint32_t *)eld + i))
5935 static void g4x_write_eld(struct drm_connector *connector,
5936 struct drm_crtc *crtc)
5938 struct drm_i915_private *dev_priv = connector->dev->dev_private;
5939 uint8_t *eld = connector->eld;
5944 i = I915_READ(G4X_AUD_VID_DID);
5946 if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL)
5947 eldv = G4X_ELDV_DEVCL_DEVBLC;
5949 eldv = G4X_ELDV_DEVCTG;
5951 if (intel_eld_uptodate(connector,
5952 G4X_AUD_CNTL_ST, eldv,
5953 G4X_AUD_CNTL_ST, G4X_ELD_ADDR,
5954 G4X_HDMIW_HDMIEDID))
5957 i = I915_READ(G4X_AUD_CNTL_ST);
5958 i &= ~(eldv | G4X_ELD_ADDR);
5959 len = (i >> 9) & 0x1f; /* ELD buffer size */
5960 I915_WRITE(G4X_AUD_CNTL_ST, i);
5965 len = min_t(uint8_t, eld[2], len);
5966 DRM_DEBUG_DRIVER("ELD size %d\n", len);
5967 for (i = 0; i < len; i++)
5968 I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i));
5970 i = I915_READ(G4X_AUD_CNTL_ST);
5972 I915_WRITE(G4X_AUD_CNTL_ST, i);
5975 static void haswell_write_eld(struct drm_connector *connector,
5976 struct drm_crtc *crtc)
5978 struct drm_i915_private *dev_priv = connector->dev->dev_private;
5979 uint8_t *eld = connector->eld;
5980 struct drm_device *dev = crtc->dev;
5981 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
5985 int pipe = to_intel_crtc(crtc)->pipe;
5988 int hdmiw_hdmiedid = HSW_AUD_EDID_DATA(pipe);
5989 int aud_cntl_st = HSW_AUD_DIP_ELD_CTRL(pipe);
5990 int aud_config = HSW_AUD_CFG(pipe);
5991 int aud_cntrl_st2 = HSW_AUD_PIN_ELD_CP_VLD;
5994 DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n");
5996 /* Audio output enable */
5997 DRM_DEBUG_DRIVER("HDMI audio: enable codec\n");
5998 tmp = I915_READ(aud_cntrl_st2);
5999 tmp |= (AUDIO_OUTPUT_ENABLE_A << (pipe * 4));
6000 I915_WRITE(aud_cntrl_st2, tmp);
6002 /* Wait for 1 vertical blank */
6003 intel_wait_for_vblank(dev, pipe);
6005 /* Set ELD valid state */
6006 tmp = I915_READ(aud_cntrl_st2);
6007 DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%8x\n", tmp);
6008 tmp |= (AUDIO_ELD_VALID_A << (pipe * 4));
6009 I915_WRITE(aud_cntrl_st2, tmp);
6010 tmp = I915_READ(aud_cntrl_st2);
6011 DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%8x\n", tmp);
6013 /* Enable HDMI mode */
6014 tmp = I915_READ(aud_config);
6015 DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%8x\n", tmp);
6016 /* clear N_programing_enable and N_value_index */
6017 tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE);
6018 I915_WRITE(aud_config, tmp);
6020 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
6022 eldv = AUDIO_ELD_VALID_A << (pipe * 4);
6023 intel_crtc->eld_vld = true;
6025 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
6026 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
6027 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
6028 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
6030 I915_WRITE(aud_config, 0);
6032 if (intel_eld_uptodate(connector,
6033 aud_cntrl_st2, eldv,
6034 aud_cntl_st, IBX_ELD_ADDRESS,
6038 i = I915_READ(aud_cntrl_st2);
6040 I915_WRITE(aud_cntrl_st2, i);
6045 i = I915_READ(aud_cntl_st);
6046 i &= ~IBX_ELD_ADDRESS;
6047 I915_WRITE(aud_cntl_st, i);
6048 i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
6049 DRM_DEBUG_DRIVER("port num:%d\n", i);
6051 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
6052 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6053 for (i = 0; i < len; i++)
6054 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
6056 i = I915_READ(aud_cntrl_st2);
6058 I915_WRITE(aud_cntrl_st2, i);
6062 static void ironlake_write_eld(struct drm_connector *connector,
6063 struct drm_crtc *crtc)
6065 struct drm_i915_private *dev_priv = connector->dev->dev_private;
6066 uint8_t *eld = connector->eld;
6074 int pipe = to_intel_crtc(crtc)->pipe;
6076 if (HAS_PCH_IBX(connector->dev)) {
6077 hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe);
6078 aud_config = IBX_AUD_CFG(pipe);
6079 aud_cntl_st = IBX_AUD_CNTL_ST(pipe);
6080 aud_cntrl_st2 = IBX_AUD_CNTL_ST2;
6082 hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe);
6083 aud_config = CPT_AUD_CFG(pipe);
6084 aud_cntl_st = CPT_AUD_CNTL_ST(pipe);
6085 aud_cntrl_st2 = CPT_AUD_CNTRL_ST2;
6088 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
6090 i = I915_READ(aud_cntl_st);
6091 i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
6093 DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
6094 /* operate blindly on all ports */
6095 eldv = IBX_ELD_VALIDB;
6096 eldv |= IBX_ELD_VALIDB << 4;
6097 eldv |= IBX_ELD_VALIDB << 8;
6099 DRM_DEBUG_DRIVER("ELD on port %c\n", 'A' + i);
6100 eldv = IBX_ELD_VALIDB << ((i - 1) * 4);
6103 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
6104 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
6105 eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
6106 I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
6108 I915_WRITE(aud_config, 0);
6110 if (intel_eld_uptodate(connector,
6111 aud_cntrl_st2, eldv,
6112 aud_cntl_st, IBX_ELD_ADDRESS,
6116 i = I915_READ(aud_cntrl_st2);
6118 I915_WRITE(aud_cntrl_st2, i);
6123 i = I915_READ(aud_cntl_st);
6124 i &= ~IBX_ELD_ADDRESS;
6125 I915_WRITE(aud_cntl_st, i);
6127 len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
6128 DRM_DEBUG_DRIVER("ELD size %d\n", len);
6129 for (i = 0; i < len; i++)
6130 I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
6132 i = I915_READ(aud_cntrl_st2);
6134 I915_WRITE(aud_cntrl_st2, i);
6137 void intel_write_eld(struct drm_encoder *encoder,
6138 struct drm_display_mode *mode)
6140 struct drm_crtc *crtc = encoder->crtc;
6141 struct drm_connector *connector;
6142 struct drm_device *dev = encoder->dev;
6143 struct drm_i915_private *dev_priv = dev->dev_private;
6145 connector = drm_select_eld(encoder, mode);
6149 DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
6151 drm_get_connector_name(connector),
6152 connector->encoder->base.id,
6153 drm_get_encoder_name(connector->encoder));
6155 connector->eld[6] = drm_av_sync_delay(connector, mode) / 2;
6157 if (dev_priv->display.write_eld)
6158 dev_priv->display.write_eld(connector, crtc);
6161 /** Loads the palette/gamma unit for the CRTC with the prepared values */
6162 void intel_crtc_load_lut(struct drm_crtc *crtc)
6164 struct drm_device *dev = crtc->dev;
6165 struct drm_i915_private *dev_priv = dev->dev_private;
6166 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6167 int palreg = PALETTE(intel_crtc->pipe);
6170 /* The clocks have to be on to load the palette. */
6171 if (!crtc->enabled || !intel_crtc->active)
6174 /* use legacy palette for Ironlake */
6175 if (HAS_PCH_SPLIT(dev))
6176 palreg = LGC_PALETTE(intel_crtc->pipe);
6178 for (i = 0; i < 256; i++) {
6179 I915_WRITE(palreg + 4 * i,
6180 (intel_crtc->lut_r[i] << 16) |
6181 (intel_crtc->lut_g[i] << 8) |
6182 intel_crtc->lut_b[i]);
6186 static void i845_update_cursor(struct drm_crtc *crtc, u32 base)
6188 struct drm_device *dev = crtc->dev;
6189 struct drm_i915_private *dev_priv = dev->dev_private;
6190 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6191 bool visible = base != 0;
6194 if (intel_crtc->cursor_visible == visible)
6197 cntl = I915_READ(_CURACNTR);
6199 /* On these chipsets we can only modify the base whilst
6200 * the cursor is disabled.
6202 I915_WRITE(_CURABASE, base);
6204 cntl &= ~(CURSOR_FORMAT_MASK);
6205 /* XXX width must be 64, stride 256 => 0x00 << 28 */
6206 cntl |= CURSOR_ENABLE |
6207 CURSOR_GAMMA_ENABLE |
6210 cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE);
6211 I915_WRITE(_CURACNTR, cntl);
6213 intel_crtc->cursor_visible = visible;
6216 static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base)
6218 struct drm_device *dev = crtc->dev;
6219 struct drm_i915_private *dev_priv = dev->dev_private;
6220 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6221 int pipe = intel_crtc->pipe;
6222 bool visible = base != 0;
6224 if (intel_crtc->cursor_visible != visible) {
6225 uint32_t cntl = I915_READ(CURCNTR(pipe));
6227 cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT);
6228 cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
6229 cntl |= pipe << 28; /* Connect to correct pipe */
6231 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
6232 cntl |= CURSOR_MODE_DISABLE;
6234 I915_WRITE(CURCNTR(pipe), cntl);
6236 intel_crtc->cursor_visible = visible;
6238 /* and commit changes on next vblank */
6239 I915_WRITE(CURBASE(pipe), base);
6242 static void ivb_update_cursor(struct drm_crtc *crtc, u32 base)
6244 struct drm_device *dev = crtc->dev;
6245 struct drm_i915_private *dev_priv = dev->dev_private;
6246 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6247 int pipe = intel_crtc->pipe;
6248 bool visible = base != 0;
6250 if (intel_crtc->cursor_visible != visible) {
6251 uint32_t cntl = I915_READ(CURCNTR_IVB(pipe));
6253 cntl &= ~CURSOR_MODE;
6254 cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
6256 cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
6257 cntl |= CURSOR_MODE_DISABLE;
6259 if (IS_HASWELL(dev))
6260 cntl |= CURSOR_PIPE_CSC_ENABLE;
6261 I915_WRITE(CURCNTR_IVB(pipe), cntl);
6263 intel_crtc->cursor_visible = visible;
6265 /* and commit changes on next vblank */
6266 I915_WRITE(CURBASE_IVB(pipe), base);
6269 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
6270 static void intel_crtc_update_cursor(struct drm_crtc *crtc,
6273 struct drm_device *dev = crtc->dev;
6274 struct drm_i915_private *dev_priv = dev->dev_private;
6275 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6276 int pipe = intel_crtc->pipe;
6277 int x = intel_crtc->cursor_x;
6278 int y = intel_crtc->cursor_y;
6284 if (on && crtc->enabled && crtc->fb) {
6285 base = intel_crtc->cursor_addr;
6286 if (x > (int) crtc->fb->width)
6289 if (y > (int) crtc->fb->height)
6295 if (x + intel_crtc->cursor_width < 0)
6298 pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT;
6301 pos |= x << CURSOR_X_SHIFT;
6304 if (y + intel_crtc->cursor_height < 0)
6307 pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT;
6310 pos |= y << CURSOR_Y_SHIFT;
6312 visible = base != 0;
6313 if (!visible && !intel_crtc->cursor_visible)
6316 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) {
6317 I915_WRITE(CURPOS_IVB(pipe), pos);
6318 ivb_update_cursor(crtc, base);
6320 I915_WRITE(CURPOS(pipe), pos);
6321 if (IS_845G(dev) || IS_I865G(dev))
6322 i845_update_cursor(crtc, base);
6324 i9xx_update_cursor(crtc, base);
6328 static int intel_crtc_cursor_set(struct drm_crtc *crtc,
6329 struct drm_file *file,
6331 uint32_t width, uint32_t height)
6333 struct drm_device *dev = crtc->dev;
6334 struct drm_i915_private *dev_priv = dev->dev_private;
6335 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6336 struct drm_i915_gem_object *obj;
6340 /* if we want to turn off the cursor ignore width and height */
6342 DRM_DEBUG_KMS("cursor off\n");
6345 mutex_lock(&dev->struct_mutex);
6349 /* Currently we only support 64x64 cursors */
6350 if (width != 64 || height != 64) {
6351 DRM_ERROR("we currently only support 64x64 cursors\n");
6355 obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle));
6356 if (&obj->base == NULL)
6359 if (obj->base.size < width * height * 4) {
6360 DRM_ERROR("buffer is to small\n");
6365 /* we only need to pin inside GTT if cursor is non-phy */
6366 mutex_lock(&dev->struct_mutex);
6367 if (!dev_priv->info->cursor_needs_physical) {
6370 if (obj->tiling_mode) {
6371 DRM_ERROR("cursor cannot be tiled\n");
6376 /* Note that the w/a also requires 2 PTE of padding following
6377 * the bo. We currently fill all unused PTE with the shadow
6378 * page and so we should always have valid PTE following the
6379 * cursor preventing the VT-d warning.
6382 if (need_vtd_wa(dev))
6383 alignment = 64*1024;
6385 ret = i915_gem_object_pin_to_display_plane(obj, alignment, NULL);
6387 DRM_ERROR("failed to move cursor bo into the GTT\n");
6391 ret = i915_gem_object_put_fence(obj);
6393 DRM_ERROR("failed to release fence for cursor");
6397 addr = obj->gtt_offset;
6399 int align = IS_I830(dev) ? 16 * 1024 : 256;
6400 ret = i915_gem_attach_phys_object(dev, obj,
6401 (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1,
6404 DRM_ERROR("failed to attach phys object\n");
6407 addr = obj->phys_obj->handle->busaddr;
6411 I915_WRITE(CURSIZE, (height << 12) | width);
6414 if (intel_crtc->cursor_bo) {
6415 if (dev_priv->info->cursor_needs_physical) {
6416 if (intel_crtc->cursor_bo != obj)
6417 i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo);
6419 i915_gem_object_unpin(intel_crtc->cursor_bo);
6420 drm_gem_object_unreference(&intel_crtc->cursor_bo->base);
6423 mutex_unlock(&dev->struct_mutex);
6425 intel_crtc->cursor_addr = addr;
6426 intel_crtc->cursor_bo = obj;
6427 intel_crtc->cursor_width = width;
6428 intel_crtc->cursor_height = height;
6430 intel_crtc_update_cursor(crtc, true);
6434 i915_gem_object_unpin(obj);
6436 mutex_unlock(&dev->struct_mutex);
6438 drm_gem_object_unreference_unlocked(&obj->base);
6442 static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
6444 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6446 intel_crtc->cursor_x = x;
6447 intel_crtc->cursor_y = y;
6449 intel_crtc_update_cursor(crtc, true);
6454 /** Sets the color ramps on behalf of RandR */
6455 void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
6456 u16 blue, int regno)
6458 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6460 intel_crtc->lut_r[regno] = red >> 8;
6461 intel_crtc->lut_g[regno] = green >> 8;
6462 intel_crtc->lut_b[regno] = blue >> 8;
6465 void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
6466 u16 *blue, int regno)
6468 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6470 *red = intel_crtc->lut_r[regno] << 8;
6471 *green = intel_crtc->lut_g[regno] << 8;
6472 *blue = intel_crtc->lut_b[regno] << 8;
6475 static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
6476 u16 *blue, uint32_t start, uint32_t size)
6478 int end = (start + size > 256) ? 256 : start + size, i;
6479 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6481 for (i = start; i < end; i++) {
6482 intel_crtc->lut_r[i] = red[i] >> 8;
6483 intel_crtc->lut_g[i] = green[i] >> 8;
6484 intel_crtc->lut_b[i] = blue[i] >> 8;
6487 intel_crtc_load_lut(crtc);
6490 /* VESA 640x480x72Hz mode to set on the pipe */
6491 static struct drm_display_mode load_detect_mode = {
6492 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664,
6493 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
6496 static struct drm_framebuffer *
6497 intel_framebuffer_create(struct drm_device *dev,
6498 struct drm_mode_fb_cmd2 *mode_cmd,
6499 struct drm_i915_gem_object *obj)
6501 struct intel_framebuffer *intel_fb;
6504 intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
6506 drm_gem_object_unreference_unlocked(&obj->base);
6507 return ERR_PTR(-ENOMEM);
6510 ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj);
6512 drm_gem_object_unreference_unlocked(&obj->base);
6514 return ERR_PTR(ret);
6517 return &intel_fb->base;
6521 intel_framebuffer_pitch_for_width(int width, int bpp)
6523 u32 pitch = DIV_ROUND_UP(width * bpp, 8);
6524 return ALIGN(pitch, 64);
6528 intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp)
6530 u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp);
6531 return ALIGN(pitch * mode->vdisplay, PAGE_SIZE);
6534 static struct drm_framebuffer *
6535 intel_framebuffer_create_for_mode(struct drm_device *dev,
6536 struct drm_display_mode *mode,
6539 struct drm_i915_gem_object *obj;
6540 struct drm_mode_fb_cmd2 mode_cmd = { 0 };
6542 obj = i915_gem_alloc_object(dev,
6543 intel_framebuffer_size_for_mode(mode, bpp));
6545 return ERR_PTR(-ENOMEM);
6547 mode_cmd.width = mode->hdisplay;
6548 mode_cmd.height = mode->vdisplay;
6549 mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width,
6551 mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth);
6553 return intel_framebuffer_create(dev, &mode_cmd, obj);
6556 static struct drm_framebuffer *
6557 mode_fits_in_fbdev(struct drm_device *dev,
6558 struct drm_display_mode *mode)
6560 struct drm_i915_private *dev_priv = dev->dev_private;
6561 struct drm_i915_gem_object *obj;
6562 struct drm_framebuffer *fb;
6564 if (dev_priv->fbdev == NULL)
6567 obj = dev_priv->fbdev->ifb.obj;
6571 fb = &dev_priv->fbdev->ifb.base;
6572 if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay,
6573 fb->bits_per_pixel))
6576 if (obj->base.size < mode->vdisplay * fb->pitches[0])
6582 bool intel_get_load_detect_pipe(struct drm_connector *connector,
6583 struct drm_display_mode *mode,
6584 struct intel_load_detect_pipe *old)
6586 struct intel_crtc *intel_crtc;
6587 struct intel_encoder *intel_encoder =
6588 intel_attached_encoder(connector);
6589 struct drm_crtc *possible_crtc;
6590 struct drm_encoder *encoder = &intel_encoder->base;
6591 struct drm_crtc *crtc = NULL;
6592 struct drm_device *dev = encoder->dev;
6593 struct drm_framebuffer *fb;
6596 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
6597 connector->base.id, drm_get_connector_name(connector),
6598 encoder->base.id, drm_get_encoder_name(encoder));
6601 * Algorithm gets a little messy:
6603 * - if the connector already has an assigned crtc, use it (but make
6604 * sure it's on first)
6606 * - try to find the first unused crtc that can drive this connector,
6607 * and use that if we find one
6610 /* See if we already have a CRTC for this connector */
6611 if (encoder->crtc) {
6612 crtc = encoder->crtc;
6614 mutex_lock(&crtc->mutex);
6616 old->dpms_mode = connector->dpms;
6617 old->load_detect_temp = false;
6619 /* Make sure the crtc and connector are running */
6620 if (connector->dpms != DRM_MODE_DPMS_ON)
6621 connector->funcs->dpms(connector, DRM_MODE_DPMS_ON);
6626 /* Find an unused one (if possible) */
6627 list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) {
6629 if (!(encoder->possible_crtcs & (1 << i)))
6631 if (!possible_crtc->enabled) {
6632 crtc = possible_crtc;
6638 * If we didn't find an unused CRTC, don't use any.
6641 DRM_DEBUG_KMS("no pipe available for load-detect\n");
6645 mutex_lock(&crtc->mutex);
6646 intel_encoder->new_crtc = to_intel_crtc(crtc);
6647 to_intel_connector(connector)->new_encoder = intel_encoder;
6649 intel_crtc = to_intel_crtc(crtc);
6650 old->dpms_mode = connector->dpms;
6651 old->load_detect_temp = true;
6652 old->release_fb = NULL;
6655 mode = &load_detect_mode;
6657 /* We need a framebuffer large enough to accommodate all accesses
6658 * that the plane may generate whilst we perform load detection.
6659 * We can not rely on the fbcon either being present (we get called
6660 * during its initialisation to detect all boot displays, or it may
6661 * not even exist) or that it is large enough to satisfy the
6664 fb = mode_fits_in_fbdev(dev, mode);
6666 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
6667 fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32);
6668 old->release_fb = fb;
6670 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
6672 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
6673 mutex_unlock(&crtc->mutex);
6677 if (intel_set_mode(crtc, mode, 0, 0, fb)) {
6678 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
6679 if (old->release_fb)
6680 old->release_fb->funcs->destroy(old->release_fb);
6681 mutex_unlock(&crtc->mutex);
6685 /* let the connector get through one full cycle before testing */
6686 intel_wait_for_vblank(dev, intel_crtc->pipe);
6690 void intel_release_load_detect_pipe(struct drm_connector *connector,
6691 struct intel_load_detect_pipe *old)
6693 struct intel_encoder *intel_encoder =
6694 intel_attached_encoder(connector);
6695 struct drm_encoder *encoder = &intel_encoder->base;
6696 struct drm_crtc *crtc = encoder->crtc;
6698 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
6699 connector->base.id, drm_get_connector_name(connector),
6700 encoder->base.id, drm_get_encoder_name(encoder));
6702 if (old->load_detect_temp) {
6703 to_intel_connector(connector)->new_encoder = NULL;
6704 intel_encoder->new_crtc = NULL;
6705 intel_set_mode(crtc, NULL, 0, 0, NULL);
6707 if (old->release_fb) {
6708 drm_framebuffer_unregister_private(old->release_fb);
6709 drm_framebuffer_unreference(old->release_fb);
6712 mutex_unlock(&crtc->mutex);
6716 /* Switch crtc and encoder back off if necessary */
6717 if (old->dpms_mode != DRM_MODE_DPMS_ON)
6718 connector->funcs->dpms(connector, old->dpms_mode);
6720 mutex_unlock(&crtc->mutex);
6723 /* Returns the clock of the currently programmed mode of the given pipe. */
6724 static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc)
6726 struct drm_i915_private *dev_priv = dev->dev_private;
6727 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6728 int pipe = intel_crtc->pipe;
6729 u32 dpll = I915_READ(DPLL(pipe));
6731 intel_clock_t clock;
6733 if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
6734 fp = I915_READ(FP0(pipe));
6736 fp = I915_READ(FP1(pipe));
6738 clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT;
6739 if (IS_PINEVIEW(dev)) {
6740 clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1;
6741 clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT;
6743 clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT;
6744 clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT;
6747 if (!IS_GEN2(dev)) {
6748 if (IS_PINEVIEW(dev))
6749 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >>
6750 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW);
6752 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >>
6753 DPLL_FPA01_P1_POST_DIV_SHIFT);
6755 switch (dpll & DPLL_MODE_MASK) {
6756 case DPLLB_MODE_DAC_SERIAL:
6757 clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ?
6760 case DPLLB_MODE_LVDS:
6761 clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ?
6765 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
6766 "mode\n", (int)(dpll & DPLL_MODE_MASK));
6770 /* XXX: Handle the 100Mhz refclk */
6771 intel_clock(dev, 96000, &clock);
6773 bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN);
6776 clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >>
6777 DPLL_FPA01_P1_POST_DIV_SHIFT);
6780 if ((dpll & PLL_REF_INPUT_MASK) ==
6781 PLLB_REF_INPUT_SPREADSPECTRUMIN) {
6782 /* XXX: might not be 66MHz */
6783 intel_clock(dev, 66000, &clock);
6785 intel_clock(dev, 48000, &clock);
6787 if (dpll & PLL_P1_DIVIDE_BY_TWO)
6790 clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >>
6791 DPLL_FPA01_P1_POST_DIV_SHIFT) + 2;
6793 if (dpll & PLL_P2_DIVIDE_BY_4)
6798 intel_clock(dev, 48000, &clock);
6802 /* XXX: It would be nice to validate the clocks, but we can't reuse
6803 * i830PllIsValid() because it relies on the xf86_config connector
6804 * configuration being accurate, which it isn't necessarily.
6810 /** Returns the currently programmed mode of the given pipe. */
6811 struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
6812 struct drm_crtc *crtc)
6814 struct drm_i915_private *dev_priv = dev->dev_private;
6815 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6816 enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder;
6817 struct drm_display_mode *mode;
6818 int htot = I915_READ(HTOTAL(cpu_transcoder));
6819 int hsync = I915_READ(HSYNC(cpu_transcoder));
6820 int vtot = I915_READ(VTOTAL(cpu_transcoder));
6821 int vsync = I915_READ(VSYNC(cpu_transcoder));
6823 mode = kzalloc(sizeof(*mode), GFP_KERNEL);
6827 mode->clock = intel_crtc_clock_get(dev, crtc);
6828 mode->hdisplay = (htot & 0xffff) + 1;
6829 mode->htotal = ((htot & 0xffff0000) >> 16) + 1;
6830 mode->hsync_start = (hsync & 0xffff) + 1;
6831 mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1;
6832 mode->vdisplay = (vtot & 0xffff) + 1;
6833 mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1;
6834 mode->vsync_start = (vsync & 0xffff) + 1;
6835 mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1;
6837 drm_mode_set_name(mode);
6842 static void intel_increase_pllclock(struct drm_crtc *crtc)
6844 struct drm_device *dev = crtc->dev;
6845 drm_i915_private_t *dev_priv = dev->dev_private;
6846 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6847 int pipe = intel_crtc->pipe;
6848 int dpll_reg = DPLL(pipe);
6851 if (HAS_PCH_SPLIT(dev))
6854 if (!dev_priv->lvds_downclock_avail)
6857 dpll = I915_READ(dpll_reg);
6858 if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) {
6859 DRM_DEBUG_DRIVER("upclocking LVDS\n");
6861 assert_panel_unlocked(dev_priv, pipe);
6863 dpll &= ~DISPLAY_RATE_SELECT_FPA1;
6864 I915_WRITE(dpll_reg, dpll);
6865 intel_wait_for_vblank(dev, pipe);
6867 dpll = I915_READ(dpll_reg);
6868 if (dpll & DISPLAY_RATE_SELECT_FPA1)
6869 DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
6873 static void intel_decrease_pllclock(struct drm_crtc *crtc)
6875 struct drm_device *dev = crtc->dev;
6876 drm_i915_private_t *dev_priv = dev->dev_private;
6877 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6879 if (HAS_PCH_SPLIT(dev))
6882 if (!dev_priv->lvds_downclock_avail)
6886 * Since this is called by a timer, we should never get here in
6889 if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) {
6890 int pipe = intel_crtc->pipe;
6891 int dpll_reg = DPLL(pipe);
6894 DRM_DEBUG_DRIVER("downclocking LVDS\n");
6896 assert_panel_unlocked(dev_priv, pipe);
6898 dpll = I915_READ(dpll_reg);
6899 dpll |= DISPLAY_RATE_SELECT_FPA1;
6900 I915_WRITE(dpll_reg, dpll);
6901 intel_wait_for_vblank(dev, pipe);
6902 dpll = I915_READ(dpll_reg);
6903 if (!(dpll & DISPLAY_RATE_SELECT_FPA1))
6904 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
6909 void intel_mark_busy(struct drm_device *dev)
6911 i915_update_gfx_val(dev->dev_private);
6914 void intel_mark_idle(struct drm_device *dev)
6916 struct drm_crtc *crtc;
6918 if (!i915_powersave)
6921 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
6925 intel_decrease_pllclock(crtc);
6929 void intel_mark_fb_busy(struct drm_i915_gem_object *obj)
6931 struct drm_device *dev = obj->base.dev;
6932 struct drm_crtc *crtc;
6934 if (!i915_powersave)
6937 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
6941 if (to_intel_framebuffer(crtc->fb)->obj == obj)
6942 intel_increase_pllclock(crtc);
6946 static void intel_crtc_destroy(struct drm_crtc *crtc)
6948 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6949 struct drm_device *dev = crtc->dev;
6950 struct intel_unpin_work *work;
6951 unsigned long flags;
6953 spin_lock_irqsave(&dev->event_lock, flags);
6954 work = intel_crtc->unpin_work;
6955 intel_crtc->unpin_work = NULL;
6956 spin_unlock_irqrestore(&dev->event_lock, flags);
6959 cancel_work_sync(&work->work);
6963 drm_crtc_cleanup(crtc);
6968 static void intel_unpin_work_fn(struct work_struct *__work)
6970 struct intel_unpin_work *work =
6971 container_of(__work, struct intel_unpin_work, work);
6972 struct drm_device *dev = work->crtc->dev;
6974 mutex_lock(&dev->struct_mutex);
6975 intel_unpin_fb_obj(work->old_fb_obj);
6976 drm_gem_object_unreference(&work->pending_flip_obj->base);
6977 drm_gem_object_unreference(&work->old_fb_obj->base);
6979 intel_update_fbc(dev);
6980 mutex_unlock(&dev->struct_mutex);
6982 BUG_ON(atomic_read(&to_intel_crtc(work->crtc)->unpin_work_count) == 0);
6983 atomic_dec(&to_intel_crtc(work->crtc)->unpin_work_count);
6988 static void do_intel_finish_page_flip(struct drm_device *dev,
6989 struct drm_crtc *crtc)
6991 drm_i915_private_t *dev_priv = dev->dev_private;
6992 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
6993 struct intel_unpin_work *work;
6994 unsigned long flags;
6996 /* Ignore early vblank irqs */
6997 if (intel_crtc == NULL)
7000 spin_lock_irqsave(&dev->event_lock, flags);
7001 work = intel_crtc->unpin_work;
7003 /* Ensure we don't miss a work->pending update ... */
7006 if (work == NULL || atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) {
7007 spin_unlock_irqrestore(&dev->event_lock, flags);
7011 /* and that the unpin work is consistent wrt ->pending. */
7014 intel_crtc->unpin_work = NULL;
7017 drm_send_vblank_event(dev, intel_crtc->pipe, work->event);
7019 drm_vblank_put(dev, intel_crtc->pipe);
7021 spin_unlock_irqrestore(&dev->event_lock, flags);
7023 wake_up_all(&dev_priv->pending_flip_queue);
7025 queue_work(dev_priv->wq, &work->work);
7027 trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj);
7030 void intel_finish_page_flip(struct drm_device *dev, int pipe)
7032 drm_i915_private_t *dev_priv = dev->dev_private;
7033 struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
7035 do_intel_finish_page_flip(dev, crtc);
7038 void intel_finish_page_flip_plane(struct drm_device *dev, int plane)
7040 drm_i915_private_t *dev_priv = dev->dev_private;
7041 struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane];
7043 do_intel_finish_page_flip(dev, crtc);
7046 void intel_prepare_page_flip(struct drm_device *dev, int plane)
7048 drm_i915_private_t *dev_priv = dev->dev_private;
7049 struct intel_crtc *intel_crtc =
7050 to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]);
7051 unsigned long flags;
7053 /* NB: An MMIO update of the plane base pointer will also
7054 * generate a page-flip completion irq, i.e. every modeset
7055 * is also accompanied by a spurious intel_prepare_page_flip().
7057 spin_lock_irqsave(&dev->event_lock, flags);
7058 if (intel_crtc->unpin_work)
7059 atomic_inc_not_zero(&intel_crtc->unpin_work->pending);
7060 spin_unlock_irqrestore(&dev->event_lock, flags);
7063 inline static void intel_mark_page_flip_active(struct intel_crtc *intel_crtc)
7065 /* Ensure that the work item is consistent when activating it ... */
7067 atomic_set(&intel_crtc->unpin_work->pending, INTEL_FLIP_PENDING);
7068 /* and that it is marked active as soon as the irq could fire. */
7072 static int intel_gen2_queue_flip(struct drm_device *dev,
7073 struct drm_crtc *crtc,
7074 struct drm_framebuffer *fb,
7075 struct drm_i915_gem_object *obj)
7077 struct drm_i915_private *dev_priv = dev->dev_private;
7078 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7080 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
7083 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
7087 ret = intel_ring_begin(ring, 6);
7091 /* Can't queue multiple flips, so wait for the previous
7092 * one to finish before executing the next.
7094 if (intel_crtc->plane)
7095 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
7097 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
7098 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
7099 intel_ring_emit(ring, MI_NOOP);
7100 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7101 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7102 intel_ring_emit(ring, fb->pitches[0]);
7103 intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset);
7104 intel_ring_emit(ring, 0); /* aux display base address, unused */
7106 intel_mark_page_flip_active(intel_crtc);
7107 intel_ring_advance(ring);
7111 intel_unpin_fb_obj(obj);
7116 static int intel_gen3_queue_flip(struct drm_device *dev,
7117 struct drm_crtc *crtc,
7118 struct drm_framebuffer *fb,
7119 struct drm_i915_gem_object *obj)
7121 struct drm_i915_private *dev_priv = dev->dev_private;
7122 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7124 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
7127 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
7131 ret = intel_ring_begin(ring, 6);
7135 if (intel_crtc->plane)
7136 flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
7138 flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
7139 intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
7140 intel_ring_emit(ring, MI_NOOP);
7141 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 |
7142 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7143 intel_ring_emit(ring, fb->pitches[0]);
7144 intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset);
7145 intel_ring_emit(ring, MI_NOOP);
7147 intel_mark_page_flip_active(intel_crtc);
7148 intel_ring_advance(ring);
7152 intel_unpin_fb_obj(obj);
7157 static int intel_gen4_queue_flip(struct drm_device *dev,
7158 struct drm_crtc *crtc,
7159 struct drm_framebuffer *fb,
7160 struct drm_i915_gem_object *obj)
7162 struct drm_i915_private *dev_priv = dev->dev_private;
7163 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7164 uint32_t pf, pipesrc;
7165 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
7168 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
7172 ret = intel_ring_begin(ring, 4);
7176 /* i965+ uses the linear or tiled offsets from the
7177 * Display Registers (which do not change across a page-flip)
7178 * so we need only reprogram the base address.
7180 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7181 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7182 intel_ring_emit(ring, fb->pitches[0]);
7183 intel_ring_emit(ring,
7184 (obj->gtt_offset + intel_crtc->dspaddr_offset) |
7187 /* XXX Enabling the panel-fitter across page-flip is so far
7188 * untested on non-native modes, so ignore it for now.
7189 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
7192 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
7193 intel_ring_emit(ring, pf | pipesrc);
7195 intel_mark_page_flip_active(intel_crtc);
7196 intel_ring_advance(ring);
7200 intel_unpin_fb_obj(obj);
7205 static int intel_gen6_queue_flip(struct drm_device *dev,
7206 struct drm_crtc *crtc,
7207 struct drm_framebuffer *fb,
7208 struct drm_i915_gem_object *obj)
7210 struct drm_i915_private *dev_priv = dev->dev_private;
7211 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7212 struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
7213 uint32_t pf, pipesrc;
7216 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
7220 ret = intel_ring_begin(ring, 4);
7224 intel_ring_emit(ring, MI_DISPLAY_FLIP |
7225 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
7226 intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode);
7227 intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset);
7229 /* Contrary to the suggestions in the documentation,
7230 * "Enable Panel Fitter" does not seem to be required when page
7231 * flipping with a non-native mode, and worse causes a normal
7233 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
7236 pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
7237 intel_ring_emit(ring, pf | pipesrc);
7239 intel_mark_page_flip_active(intel_crtc);
7240 intel_ring_advance(ring);
7244 intel_unpin_fb_obj(obj);
7250 * On gen7 we currently use the blit ring because (in early silicon at least)
7251 * the render ring doesn't give us interrpts for page flip completion, which
7252 * means clients will hang after the first flip is queued. Fortunately the
7253 * blit ring generates interrupts properly, so use it instead.
7255 static int intel_gen7_queue_flip(struct drm_device *dev,
7256 struct drm_crtc *crtc,
7257 struct drm_framebuffer *fb,
7258 struct drm_i915_gem_object *obj)
7260 struct drm_i915_private *dev_priv = dev->dev_private;
7261 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7262 struct intel_ring_buffer *ring = &dev_priv->ring[BCS];
7263 uint32_t plane_bit = 0;
7266 ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
7270 switch(intel_crtc->plane) {
7272 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
7275 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
7278 plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
7281 WARN_ONCE(1, "unknown plane in flip command\n");
7286 ret = intel_ring_begin(ring, 4);
7290 intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit);
7291 intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
7292 intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset);
7293 intel_ring_emit(ring, (MI_NOOP));
7295 intel_mark_page_flip_active(intel_crtc);
7296 intel_ring_advance(ring);
7300 intel_unpin_fb_obj(obj);
7305 static int intel_default_queue_flip(struct drm_device *dev,
7306 struct drm_crtc *crtc,
7307 struct drm_framebuffer *fb,
7308 struct drm_i915_gem_object *obj)
7313 static int intel_crtc_page_flip(struct drm_crtc *crtc,
7314 struct drm_framebuffer *fb,
7315 struct drm_pending_vblank_event *event)
7317 struct drm_device *dev = crtc->dev;
7318 struct drm_i915_private *dev_priv = dev->dev_private;
7319 struct drm_framebuffer *old_fb = crtc->fb;
7320 struct drm_i915_gem_object *obj = to_intel_framebuffer(fb)->obj;
7321 struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
7322 struct intel_unpin_work *work;
7323 unsigned long flags;
7326 /* Can't change pixel format via MI display flips. */
7327 if (fb->pixel_format != crtc->fb->pixel_format)
7331 * TILEOFF/LINOFF registers can't be changed via MI display flips.
7332 * Note that pitch changes could also affect these register.
7334 if (INTEL_INFO(dev)->gen > 3 &&
7335 (fb->offsets[0] != crtc->fb->offsets[0] ||
7336 fb->pitches[0] != crtc->fb->pitches[0]))
7339 work = kzalloc(sizeof *work, GFP_KERNEL);
7343 work->event = event;
7345 work->old_fb_obj = to_intel_framebuffer(old_fb)->obj;
7346 INIT_WORK(&work->work, intel_unpin_work_fn);
7348 ret = drm_vblank_get(dev, intel_crtc->pipe);
7352 /* We borrow the event spin lock for protecting unpin_work */
7353 spin_lock_irqsave(&dev->event_lock, flags);
7354 if (intel_crtc->unpin_work) {
7355 spin_unlock_irqrestore(&dev->event_lock, flags);
7357 drm_vblank_put(dev, intel_crtc->pipe);
7359 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
7362 intel_crtc->unpin_work = work;
7363 spin_unlock_irqrestore(&dev->event_lock, flags);
7365 if (atomic_read(&intel_crtc->unpin_work_count) >= 2)
7366 flush_workqueue(dev_priv->wq);
7368 ret = i915_mutex_lock_interruptible(dev);
7372 /* Reference the objects for the scheduled work. */
7373 drm_gem_object_reference(&work->old_fb_obj->base);
7374 drm_gem_object_reference(&obj->base);
7378 work->pending_flip_obj = obj;
7380 work->enable_stall_check = true;
7382 atomic_inc(&intel_crtc->unpin_work_count);
7383 intel_crtc->reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter);
7385 ret = dev_priv->display.queue_flip(dev, crtc, fb, obj);
7387 goto cleanup_pending;
7389 intel_disable_fbc(dev);
7390 intel_mark_fb_busy(obj);
7391 mutex_unlock(&dev->struct_mutex);
7393 trace_i915_flip_request(intel_crtc->plane, obj);
7398 atomic_dec(&intel_crtc->unpin_work_count);
7400 drm_gem_object_unreference(&work->old_fb_obj->base);
7401 drm_gem_object_unreference(&obj->base);
7402 mutex_unlock(&dev->struct_mutex);
7405 spin_lock_irqsave(&dev->event_lock, flags);
7406 intel_crtc->unpin_work = NULL;
7407 spin_unlock_irqrestore(&dev->event_lock, flags);
7409 drm_vblank_put(dev, intel_crtc->pipe);
7416 static struct drm_crtc_helper_funcs intel_helper_funcs = {
7417 .mode_set_base_atomic = intel_pipe_set_base_atomic,
7418 .load_lut = intel_crtc_load_lut,
7421 bool intel_encoder_check_is_cloned(struct intel_encoder *encoder)
7423 struct intel_encoder *other_encoder;
7424 struct drm_crtc *crtc = &encoder->new_crtc->base;
7429 list_for_each_entry(other_encoder,
7430 &crtc->dev->mode_config.encoder_list,
7433 if (&other_encoder->new_crtc->base != crtc ||
7434 encoder == other_encoder)
7443 static bool intel_encoder_crtc_ok(struct drm_encoder *encoder,
7444 struct drm_crtc *crtc)
7446 struct drm_device *dev;
7447 struct drm_crtc *tmp;
7450 WARN(!crtc, "checking null crtc?\n");
7454 list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) {
7460 if (encoder->possible_crtcs & crtc_mask)
7466 * intel_modeset_update_staged_output_state
7468 * Updates the staged output configuration state, e.g. after we've read out the
7471 static void intel_modeset_update_staged_output_state(struct drm_device *dev)
7473 struct intel_encoder *encoder;
7474 struct intel_connector *connector;
7476 list_for_each_entry(connector, &dev->mode_config.connector_list,
7478 connector->new_encoder =
7479 to_intel_encoder(connector->base.encoder);
7482 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7485 to_intel_crtc(encoder->base.crtc);
7490 * intel_modeset_commit_output_state
7492 * This function copies the stage display pipe configuration to the real one.
7494 static void intel_modeset_commit_output_state(struct drm_device *dev)
7496 struct intel_encoder *encoder;
7497 struct intel_connector *connector;
7499 list_for_each_entry(connector, &dev->mode_config.connector_list,
7501 connector->base.encoder = &connector->new_encoder->base;
7504 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7506 encoder->base.crtc = &encoder->new_crtc->base;
7511 pipe_config_set_bpp(struct drm_crtc *crtc,
7512 struct drm_framebuffer *fb,
7513 struct intel_crtc_config *pipe_config)
7515 struct drm_device *dev = crtc->dev;
7516 struct drm_connector *connector;
7519 switch (fb->pixel_format) {
7521 bpp = 8*3; /* since we go through a colormap */
7523 case DRM_FORMAT_XRGB1555:
7524 case DRM_FORMAT_ARGB1555:
7525 /* checked in intel_framebuffer_init already */
7526 if (WARN_ON(INTEL_INFO(dev)->gen > 3))
7528 case DRM_FORMAT_RGB565:
7529 bpp = 6*3; /* min is 18bpp */
7531 case DRM_FORMAT_XBGR8888:
7532 case DRM_FORMAT_ABGR8888:
7533 /* checked in intel_framebuffer_init already */
7534 if (WARN_ON(INTEL_INFO(dev)->gen < 4))
7536 case DRM_FORMAT_XRGB8888:
7537 case DRM_FORMAT_ARGB8888:
7540 case DRM_FORMAT_XRGB2101010:
7541 case DRM_FORMAT_ARGB2101010:
7542 case DRM_FORMAT_XBGR2101010:
7543 case DRM_FORMAT_ABGR2101010:
7544 /* checked in intel_framebuffer_init already */
7545 if (WARN_ON(INTEL_INFO(dev)->gen < 4))
7549 /* TODO: gen4+ supports 16 bpc floating point, too. */
7551 DRM_DEBUG_KMS("unsupported depth\n");
7555 pipe_config->pipe_bpp = bpp;
7557 /* Clamp display bpp to EDID value */
7558 list_for_each_entry(connector, &dev->mode_config.connector_list,
7560 if (connector->encoder && connector->encoder->crtc != crtc)
7563 /* Don't use an invalid EDID bpc value */
7564 if (connector->display_info.bpc &&
7565 connector->display_info.bpc * 3 < bpp) {
7566 DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
7567 bpp, connector->display_info.bpc*3);
7568 pipe_config->pipe_bpp = connector->display_info.bpc*3;
7575 static struct intel_crtc_config *
7576 intel_modeset_pipe_config(struct drm_crtc *crtc,
7577 struct drm_framebuffer *fb,
7578 struct drm_display_mode *mode)
7580 struct drm_device *dev = crtc->dev;
7581 struct drm_encoder_helper_funcs *encoder_funcs;
7582 struct intel_encoder *encoder;
7583 struct intel_crtc_config *pipe_config;
7586 pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL);
7588 return ERR_PTR(-ENOMEM);
7590 drm_mode_copy(&pipe_config->adjusted_mode, mode);
7591 drm_mode_copy(&pipe_config->requested_mode, mode);
7593 plane_bpp = pipe_config_set_bpp(crtc, fb, pipe_config);
7597 /* Pass our mode to the connectors and the CRTC to give them a chance to
7598 * adjust it according to limitations or connector properties, and also
7599 * a chance to reject the mode entirely.
7601 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7604 if (&encoder->new_crtc->base != crtc)
7607 if (encoder->compute_config) {
7608 if (!(encoder->compute_config(encoder, pipe_config))) {
7609 DRM_DEBUG_KMS("Encoder config failure\n");
7616 encoder_funcs = encoder->base.helper_private;
7617 if (!(encoder_funcs->mode_fixup(&encoder->base,
7618 &pipe_config->requested_mode,
7619 &pipe_config->adjusted_mode))) {
7620 DRM_DEBUG_KMS("Encoder fixup failed\n");
7625 if (!(intel_crtc_compute_config(crtc, pipe_config))) {
7626 DRM_DEBUG_KMS("CRTC fixup failed\n");
7629 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
7631 pipe_config->dither = pipe_config->pipe_bpp != plane_bpp;
7632 DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n",
7633 plane_bpp, pipe_config->pipe_bpp, pipe_config->dither);
7638 return ERR_PTR(-EINVAL);
7641 /* Computes which crtcs are affected and sets the relevant bits in the mask. For
7642 * simplicity we use the crtc's pipe number (because it's easier to obtain). */
7644 intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes,
7645 unsigned *prepare_pipes, unsigned *disable_pipes)
7647 struct intel_crtc *intel_crtc;
7648 struct drm_device *dev = crtc->dev;
7649 struct intel_encoder *encoder;
7650 struct intel_connector *connector;
7651 struct drm_crtc *tmp_crtc;
7653 *disable_pipes = *modeset_pipes = *prepare_pipes = 0;
7655 /* Check which crtcs have changed outputs connected to them, these need
7656 * to be part of the prepare_pipes mask. We don't (yet) support global
7657 * modeset across multiple crtcs, so modeset_pipes will only have one
7658 * bit set at most. */
7659 list_for_each_entry(connector, &dev->mode_config.connector_list,
7661 if (connector->base.encoder == &connector->new_encoder->base)
7664 if (connector->base.encoder) {
7665 tmp_crtc = connector->base.encoder->crtc;
7667 *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
7670 if (connector->new_encoder)
7672 1 << connector->new_encoder->new_crtc->pipe;
7675 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7677 if (encoder->base.crtc == &encoder->new_crtc->base)
7680 if (encoder->base.crtc) {
7681 tmp_crtc = encoder->base.crtc;
7683 *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
7686 if (encoder->new_crtc)
7687 *prepare_pipes |= 1 << encoder->new_crtc->pipe;
7690 /* Check for any pipes that will be fully disabled ... */
7691 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
7695 /* Don't try to disable disabled crtcs. */
7696 if (!intel_crtc->base.enabled)
7699 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7701 if (encoder->new_crtc == intel_crtc)
7706 *disable_pipes |= 1 << intel_crtc->pipe;
7710 /* set_mode is also used to update properties on life display pipes. */
7711 intel_crtc = to_intel_crtc(crtc);
7713 *prepare_pipes |= 1 << intel_crtc->pipe;
7715 /* We only support modeset on one single crtc, hence we need to do that
7716 * only for the passed in crtc iff we change anything else than just
7719 * This is actually not true, to be fully compatible with the old crtc
7720 * helper we automatically disable _any_ output (i.e. doesn't need to be
7721 * connected to the crtc we're modesetting on) if it's disconnected.
7722 * Which is a rather nutty api (since changed the output configuration
7723 * without userspace's explicit request can lead to confusion), but
7724 * alas. Hence we currently need to modeset on all pipes we prepare. */
7726 *modeset_pipes = *prepare_pipes;
7728 /* ... and mask these out. */
7729 *modeset_pipes &= ~(*disable_pipes);
7730 *prepare_pipes &= ~(*disable_pipes);
7733 static bool intel_crtc_in_use(struct drm_crtc *crtc)
7735 struct drm_encoder *encoder;
7736 struct drm_device *dev = crtc->dev;
7738 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
7739 if (encoder->crtc == crtc)
7746 intel_modeset_update_state(struct drm_device *dev, unsigned prepare_pipes)
7748 struct intel_encoder *intel_encoder;
7749 struct intel_crtc *intel_crtc;
7750 struct drm_connector *connector;
7752 list_for_each_entry(intel_encoder, &dev->mode_config.encoder_list,
7754 if (!intel_encoder->base.crtc)
7757 intel_crtc = to_intel_crtc(intel_encoder->base.crtc);
7759 if (prepare_pipes & (1 << intel_crtc->pipe))
7760 intel_encoder->connectors_active = false;
7763 intel_modeset_commit_output_state(dev);
7765 /* Update computed state. */
7766 list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
7768 intel_crtc->base.enabled = intel_crtc_in_use(&intel_crtc->base);
7771 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
7772 if (!connector->encoder || !connector->encoder->crtc)
7775 intel_crtc = to_intel_crtc(connector->encoder->crtc);
7777 if (prepare_pipes & (1 << intel_crtc->pipe)) {
7778 struct drm_property *dpms_property =
7779 dev->mode_config.dpms_property;
7781 connector->dpms = DRM_MODE_DPMS_ON;
7782 drm_object_property_set_value(&connector->base,
7786 intel_encoder = to_intel_encoder(connector->encoder);
7787 intel_encoder->connectors_active = true;
7793 #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
7794 list_for_each_entry((intel_crtc), \
7795 &(dev)->mode_config.crtc_list, \
7797 if (mask & (1 <<(intel_crtc)->pipe)) \
7800 intel_pipe_config_compare(struct intel_crtc_config *current_config,
7801 struct intel_crtc_config *pipe_config)
7803 if (current_config->has_pch_encoder != pipe_config->has_pch_encoder) {
7804 DRM_ERROR("mismatch in has_pch_encoder "
7805 "(expected %i, found %i)\n",
7806 current_config->has_pch_encoder,
7807 pipe_config->has_pch_encoder);
7815 intel_modeset_check_state(struct drm_device *dev)
7817 drm_i915_private_t *dev_priv = dev->dev_private;
7818 struct intel_crtc *crtc;
7819 struct intel_encoder *encoder;
7820 struct intel_connector *connector;
7821 struct intel_crtc_config pipe_config;
7823 list_for_each_entry(connector, &dev->mode_config.connector_list,
7825 /* This also checks the encoder/connector hw state with the
7826 * ->get_hw_state callbacks. */
7827 intel_connector_check_state(connector);
7829 WARN(&connector->new_encoder->base != connector->base.encoder,
7830 "connector's staged encoder doesn't match current encoder\n");
7833 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7835 bool enabled = false;
7836 bool active = false;
7837 enum pipe pipe, tracked_pipe;
7839 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
7840 encoder->base.base.id,
7841 drm_get_encoder_name(&encoder->base));
7843 WARN(&encoder->new_crtc->base != encoder->base.crtc,
7844 "encoder's stage crtc doesn't match current crtc\n");
7845 WARN(encoder->connectors_active && !encoder->base.crtc,
7846 "encoder's active_connectors set, but no crtc\n");
7848 list_for_each_entry(connector, &dev->mode_config.connector_list,
7850 if (connector->base.encoder != &encoder->base)
7853 if (connector->base.dpms != DRM_MODE_DPMS_OFF)
7856 WARN(!!encoder->base.crtc != enabled,
7857 "encoder's enabled state mismatch "
7858 "(expected %i, found %i)\n",
7859 !!encoder->base.crtc, enabled);
7860 WARN(active && !encoder->base.crtc,
7861 "active encoder with no crtc\n");
7863 WARN(encoder->connectors_active != active,
7864 "encoder's computed active state doesn't match tracked active state "
7865 "(expected %i, found %i)\n", active, encoder->connectors_active);
7867 active = encoder->get_hw_state(encoder, &pipe);
7868 WARN(active != encoder->connectors_active,
7869 "encoder's hw state doesn't match sw tracking "
7870 "(expected %i, found %i)\n",
7871 encoder->connectors_active, active);
7873 if (!encoder->base.crtc)
7876 tracked_pipe = to_intel_crtc(encoder->base.crtc)->pipe;
7877 WARN(active && pipe != tracked_pipe,
7878 "active encoder's pipe doesn't match"
7879 "(expected %i, found %i)\n",
7880 tracked_pipe, pipe);
7884 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
7886 bool enabled = false;
7887 bool active = false;
7889 DRM_DEBUG_KMS("[CRTC:%d]\n",
7890 crtc->base.base.id);
7892 WARN(crtc->active && !crtc->base.enabled,
7893 "active crtc, but not enabled in sw tracking\n");
7895 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
7897 if (encoder->base.crtc != &crtc->base)
7900 if (encoder->connectors_active)
7903 WARN(active != crtc->active,
7904 "crtc's computed active state doesn't match tracked active state "
7905 "(expected %i, found %i)\n", active, crtc->active);
7906 WARN(enabled != crtc->base.enabled,
7907 "crtc's computed enabled state doesn't match tracked enabled state "
7908 "(expected %i, found %i)\n", enabled, crtc->base.enabled);
7910 memset(&pipe_config, 0, sizeof(pipe_config));
7911 active = dev_priv->display.get_pipe_config(crtc,
7913 WARN(crtc->active != active,
7914 "crtc active state doesn't match with hw state "
7915 "(expected %i, found %i)\n", crtc->active, active);
7918 !intel_pipe_config_compare(&crtc->config, &pipe_config),
7919 "pipe state doesn't match!\n");
7923 static int __intel_set_mode(struct drm_crtc *crtc,
7924 struct drm_display_mode *mode,
7925 int x, int y, struct drm_framebuffer *fb)
7927 struct drm_device *dev = crtc->dev;
7928 drm_i915_private_t *dev_priv = dev->dev_private;
7929 struct drm_display_mode *saved_mode, *saved_hwmode;
7930 struct intel_crtc_config *pipe_config = NULL;
7931 struct intel_crtc *intel_crtc;
7932 unsigned disable_pipes, prepare_pipes, modeset_pipes;
7935 saved_mode = kmalloc(2 * sizeof(*saved_mode), GFP_KERNEL);
7938 saved_hwmode = saved_mode + 1;
7940 intel_modeset_affected_pipes(crtc, &modeset_pipes,
7941 &prepare_pipes, &disable_pipes);
7943 *saved_hwmode = crtc->hwmode;
7944 *saved_mode = crtc->mode;
7946 /* Hack: Because we don't (yet) support global modeset on multiple
7947 * crtcs, we don't keep track of the new mode for more than one crtc.
7948 * Hence simply check whether any bit is set in modeset_pipes in all the
7949 * pieces of code that are not yet converted to deal with mutliple crtcs
7950 * changing their mode at the same time. */
7951 if (modeset_pipes) {
7952 pipe_config = intel_modeset_pipe_config(crtc, fb, mode);
7953 if (IS_ERR(pipe_config)) {
7954 ret = PTR_ERR(pipe_config);
7961 DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
7962 modeset_pipes, prepare_pipes, disable_pipes);
7964 for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc)
7965 intel_crtc_disable(&intel_crtc->base);
7967 for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) {
7968 if (intel_crtc->base.enabled)
7969 dev_priv->display.crtc_disable(&intel_crtc->base);
7972 /* crtc->mode is already used by the ->mode_set callbacks, hence we need
7973 * to set it here already despite that we pass it down the callchain.
7975 if (modeset_pipes) {
7977 /* mode_set/enable/disable functions rely on a correct pipe
7979 to_intel_crtc(crtc)->config = *pipe_config;
7982 /* Only after disabling all output pipelines that will be changed can we
7983 * update the the output configuration. */
7984 intel_modeset_update_state(dev, prepare_pipes);
7986 if (dev_priv->display.modeset_global_resources)
7987 dev_priv->display.modeset_global_resources(dev);
7989 /* Set up the DPLL and any encoders state that needs to adjust or depend
7992 for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) {
7993 ret = intel_crtc_mode_set(&intel_crtc->base,
7999 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
8000 for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc)
8001 dev_priv->display.crtc_enable(&intel_crtc->base);
8003 if (modeset_pipes) {
8004 /* Store real post-adjustment hardware mode. */
8005 crtc->hwmode = pipe_config->adjusted_mode;
8007 /* Calculate and store various constants which
8008 * are later needed by vblank and swap-completion
8009 * timestamping. They are derived from true hwmode.
8011 drm_calc_timestamping_constants(crtc);
8014 /* FIXME: add subpixel order */
8016 if (ret && crtc->enabled) {
8017 crtc->hwmode = *saved_hwmode;
8018 crtc->mode = *saved_mode;
8027 int intel_set_mode(struct drm_crtc *crtc,
8028 struct drm_display_mode *mode,
8029 int x, int y, struct drm_framebuffer *fb)
8033 ret = __intel_set_mode(crtc, mode, x, y, fb);
8036 intel_modeset_check_state(crtc->dev);
8041 void intel_crtc_restore_mode(struct drm_crtc *crtc)
8043 intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, crtc->fb);
8046 #undef for_each_intel_crtc_masked
8048 static void intel_set_config_free(struct intel_set_config *config)
8053 kfree(config->save_connector_encoders);
8054 kfree(config->save_encoder_crtcs);
8058 static int intel_set_config_save_state(struct drm_device *dev,
8059 struct intel_set_config *config)
8061 struct drm_encoder *encoder;
8062 struct drm_connector *connector;
8065 config->save_encoder_crtcs =
8066 kcalloc(dev->mode_config.num_encoder,
8067 sizeof(struct drm_crtc *), GFP_KERNEL);
8068 if (!config->save_encoder_crtcs)
8071 config->save_connector_encoders =
8072 kcalloc(dev->mode_config.num_connector,
8073 sizeof(struct drm_encoder *), GFP_KERNEL);
8074 if (!config->save_connector_encoders)
8077 /* Copy data. Note that driver private data is not affected.
8078 * Should anything bad happen only the expected state is
8079 * restored, not the drivers personal bookkeeping.
8082 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
8083 config->save_encoder_crtcs[count++] = encoder->crtc;
8087 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
8088 config->save_connector_encoders[count++] = connector->encoder;
8094 static void intel_set_config_restore_state(struct drm_device *dev,
8095 struct intel_set_config *config)
8097 struct intel_encoder *encoder;
8098 struct intel_connector *connector;
8102 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
8104 to_intel_crtc(config->save_encoder_crtcs[count++]);
8108 list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) {
8109 connector->new_encoder =
8110 to_intel_encoder(config->save_connector_encoders[count++]);
8115 intel_set_config_compute_mode_changes(struct drm_mode_set *set,
8116 struct intel_set_config *config)
8119 /* We should be able to check here if the fb has the same properties
8120 * and then just flip_or_move it */
8121 if (set->crtc->fb != set->fb) {
8122 /* If we have no fb then treat it as a full mode set */
8123 if (set->crtc->fb == NULL) {
8124 DRM_DEBUG_KMS("crtc has no fb, full mode set\n");
8125 config->mode_changed = true;
8126 } else if (set->fb == NULL) {
8127 config->mode_changed = true;
8128 } else if (set->fb->pixel_format !=
8129 set->crtc->fb->pixel_format) {
8130 config->mode_changed = true;
8132 config->fb_changed = true;
8135 if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y))
8136 config->fb_changed = true;
8138 if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) {
8139 DRM_DEBUG_KMS("modes are different, full mode set\n");
8140 drm_mode_debug_printmodeline(&set->crtc->mode);
8141 drm_mode_debug_printmodeline(set->mode);
8142 config->mode_changed = true;
8147 intel_modeset_stage_output_state(struct drm_device *dev,
8148 struct drm_mode_set *set,
8149 struct intel_set_config *config)
8151 struct drm_crtc *new_crtc;
8152 struct intel_connector *connector;
8153 struct intel_encoder *encoder;
8156 /* The upper layers ensure that we either disable a crtc or have a list
8157 * of connectors. For paranoia, double-check this. */
8158 WARN_ON(!set->fb && (set->num_connectors != 0));
8159 WARN_ON(set->fb && (set->num_connectors == 0));
8162 list_for_each_entry(connector, &dev->mode_config.connector_list,
8164 /* Otherwise traverse passed in connector list and get encoders
8166 for (ro = 0; ro < set->num_connectors; ro++) {
8167 if (set->connectors[ro] == &connector->base) {
8168 connector->new_encoder = connector->encoder;
8173 /* If we disable the crtc, disable all its connectors. Also, if
8174 * the connector is on the changing crtc but not on the new
8175 * connector list, disable it. */
8176 if ((!set->fb || ro == set->num_connectors) &&
8177 connector->base.encoder &&
8178 connector->base.encoder->crtc == set->crtc) {
8179 connector->new_encoder = NULL;
8181 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
8182 connector->base.base.id,
8183 drm_get_connector_name(&connector->base));
8187 if (&connector->new_encoder->base != connector->base.encoder) {
8188 DRM_DEBUG_KMS("encoder changed, full mode switch\n");
8189 config->mode_changed = true;
8192 /* connector->new_encoder is now updated for all connectors. */
8194 /* Update crtc of enabled connectors. */
8196 list_for_each_entry(connector, &dev->mode_config.connector_list,
8198 if (!connector->new_encoder)
8201 new_crtc = connector->new_encoder->base.crtc;
8203 for (ro = 0; ro < set->num_connectors; ro++) {
8204 if (set->connectors[ro] == &connector->base)
8205 new_crtc = set->crtc;
8208 /* Make sure the new CRTC will work with the encoder */
8209 if (!intel_encoder_crtc_ok(&connector->new_encoder->base,
8213 connector->encoder->new_crtc = to_intel_crtc(new_crtc);
8215 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
8216 connector->base.base.id,
8217 drm_get_connector_name(&connector->base),
8221 /* Check for any encoders that needs to be disabled. */
8222 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
8224 list_for_each_entry(connector,
8225 &dev->mode_config.connector_list,
8227 if (connector->new_encoder == encoder) {
8228 WARN_ON(!connector->new_encoder->new_crtc);
8233 encoder->new_crtc = NULL;
8235 /* Only now check for crtc changes so we don't miss encoders
8236 * that will be disabled. */
8237 if (&encoder->new_crtc->base != encoder->base.crtc) {
8238 DRM_DEBUG_KMS("crtc changed, full mode switch\n");
8239 config->mode_changed = true;
8242 /* Now we've also updated encoder->new_crtc for all encoders. */
8247 static int intel_crtc_set_config(struct drm_mode_set *set)
8249 struct drm_device *dev;
8250 struct drm_mode_set save_set;
8251 struct intel_set_config *config;
8256 BUG_ON(!set->crtc->helper_private);
8258 /* Enforce sane interface api - has been abused by the fb helper. */
8259 BUG_ON(!set->mode && set->fb);
8260 BUG_ON(set->fb && set->num_connectors == 0);
8263 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
8264 set->crtc->base.id, set->fb->base.id,
8265 (int)set->num_connectors, set->x, set->y);
8267 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id);
8270 dev = set->crtc->dev;
8273 config = kzalloc(sizeof(*config), GFP_KERNEL);
8277 ret = intel_set_config_save_state(dev, config);
8281 save_set.crtc = set->crtc;
8282 save_set.mode = &set->crtc->mode;
8283 save_set.x = set->crtc->x;
8284 save_set.y = set->crtc->y;
8285 save_set.fb = set->crtc->fb;
8287 /* Compute whether we need a full modeset, only an fb base update or no
8288 * change at all. In the future we might also check whether only the
8289 * mode changed, e.g. for LVDS where we only change the panel fitter in
8291 intel_set_config_compute_mode_changes(set, config);
8293 ret = intel_modeset_stage_output_state(dev, set, config);
8297 if (config->mode_changed) {
8299 DRM_DEBUG_KMS("attempting to set mode from"
8301 drm_mode_debug_printmodeline(set->mode);
8304 ret = intel_set_mode(set->crtc, set->mode,
8305 set->x, set->y, set->fb);
8307 DRM_ERROR("failed to set mode on [CRTC:%d], err = %d\n",
8308 set->crtc->base.id, ret);
8311 } else if (config->fb_changed) {
8312 intel_crtc_wait_for_pending_flips(set->crtc);
8314 ret = intel_pipe_set_base(set->crtc,
8315 set->x, set->y, set->fb);
8318 intel_set_config_free(config);
8323 intel_set_config_restore_state(dev, config);
8325 /* Try to restore the config */
8326 if (config->mode_changed &&
8327 intel_set_mode(save_set.crtc, save_set.mode,
8328 save_set.x, save_set.y, save_set.fb))
8329 DRM_ERROR("failed to restore config after modeset failure\n");
8332 intel_set_config_free(config);
8336 static const struct drm_crtc_funcs intel_crtc_funcs = {
8337 .cursor_set = intel_crtc_cursor_set,
8338 .cursor_move = intel_crtc_cursor_move,
8339 .gamma_set = intel_crtc_gamma_set,
8340 .set_config = intel_crtc_set_config,
8341 .destroy = intel_crtc_destroy,
8342 .page_flip = intel_crtc_page_flip,
8345 static void intel_cpu_pll_init(struct drm_device *dev)
8348 intel_ddi_pll_init(dev);
8351 static void intel_pch_pll_init(struct drm_device *dev)
8353 drm_i915_private_t *dev_priv = dev->dev_private;
8356 if (dev_priv->num_pch_pll == 0) {
8357 DRM_DEBUG_KMS("No PCH PLLs on this hardware, skipping initialisation\n");
8361 for (i = 0; i < dev_priv->num_pch_pll; i++) {
8362 dev_priv->pch_plls[i].pll_reg = _PCH_DPLL(i);
8363 dev_priv->pch_plls[i].fp0_reg = _PCH_FP0(i);
8364 dev_priv->pch_plls[i].fp1_reg = _PCH_FP1(i);
8368 static void intel_crtc_init(struct drm_device *dev, int pipe)
8370 drm_i915_private_t *dev_priv = dev->dev_private;
8371 struct intel_crtc *intel_crtc;
8374 intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL);
8375 if (intel_crtc == NULL)
8378 drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs);
8380 drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256);
8381 for (i = 0; i < 256; i++) {
8382 intel_crtc->lut_r[i] = i;
8383 intel_crtc->lut_g[i] = i;
8384 intel_crtc->lut_b[i] = i;
8387 /* Swap pipes & planes for FBC on pre-965 */
8388 intel_crtc->pipe = pipe;
8389 intel_crtc->plane = pipe;
8390 intel_crtc->cpu_transcoder = pipe;
8391 if (IS_MOBILE(dev) && IS_GEN3(dev)) {
8392 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
8393 intel_crtc->plane = !pipe;
8396 BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
8397 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL);
8398 dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base;
8399 dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base;
8401 drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs);
8404 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
8405 struct drm_file *file)
8407 struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data;
8408 struct drm_mode_object *drmmode_obj;
8409 struct intel_crtc *crtc;
8411 if (!drm_core_check_feature(dev, DRIVER_MODESET))
8414 drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id,
8415 DRM_MODE_OBJECT_CRTC);
8418 DRM_ERROR("no such CRTC id\n");
8422 crtc = to_intel_crtc(obj_to_crtc(drmmode_obj));
8423 pipe_from_crtc_id->pipe = crtc->pipe;
8428 static int intel_encoder_clones(struct intel_encoder *encoder)
8430 struct drm_device *dev = encoder->base.dev;
8431 struct intel_encoder *source_encoder;
8435 list_for_each_entry(source_encoder,
8436 &dev->mode_config.encoder_list, base.head) {
8438 if (encoder == source_encoder)
8439 index_mask |= (1 << entry);
8441 /* Intel hw has only one MUX where enocoders could be cloned. */
8442 if (encoder->cloneable && source_encoder->cloneable)
8443 index_mask |= (1 << entry);
8451 static bool has_edp_a(struct drm_device *dev)
8453 struct drm_i915_private *dev_priv = dev->dev_private;
8455 if (!IS_MOBILE(dev))
8458 if ((I915_READ(DP_A) & DP_DETECTED) == 0)
8462 (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE))
8468 static void intel_setup_outputs(struct drm_device *dev)
8470 struct drm_i915_private *dev_priv = dev->dev_private;
8471 struct intel_encoder *encoder;
8472 bool dpd_is_edp = false;
8475 has_lvds = intel_lvds_init(dev);
8476 if (!has_lvds && !HAS_PCH_SPLIT(dev)) {
8477 /* disable the panel fitter on everything but LVDS */
8478 I915_WRITE(PFIT_CONTROL, 0);
8481 if (!(HAS_DDI(dev) && (I915_READ(DDI_BUF_CTL(PORT_A)) & DDI_A_4_LANES)))
8482 intel_crt_init(dev);
8487 /* Haswell uses DDI functions to detect digital outputs */
8488 found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED;
8489 /* DDI A only supports eDP */
8491 intel_ddi_init(dev, PORT_A);
8493 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
8495 found = I915_READ(SFUSE_STRAP);
8497 if (found & SFUSE_STRAP_DDIB_DETECTED)
8498 intel_ddi_init(dev, PORT_B);
8499 if (found & SFUSE_STRAP_DDIC_DETECTED)
8500 intel_ddi_init(dev, PORT_C);
8501 if (found & SFUSE_STRAP_DDID_DETECTED)
8502 intel_ddi_init(dev, PORT_D);
8503 } else if (HAS_PCH_SPLIT(dev)) {
8505 dpd_is_edp = intel_dpd_is_edp(dev);
8508 intel_dp_init(dev, DP_A, PORT_A);
8510 if (I915_READ(PCH_HDMIB) & SDVO_DETECTED) {
8511 /* PCH SDVOB multiplex with HDMIB */
8512 found = intel_sdvo_init(dev, PCH_SDVOB, true);
8514 intel_hdmi_init(dev, PCH_HDMIB, PORT_B);
8515 if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED))
8516 intel_dp_init(dev, PCH_DP_B, PORT_B);
8519 if (I915_READ(PCH_HDMIC) & SDVO_DETECTED)
8520 intel_hdmi_init(dev, PCH_HDMIC, PORT_C);
8522 if (!dpd_is_edp && I915_READ(PCH_HDMID) & SDVO_DETECTED)
8523 intel_hdmi_init(dev, PCH_HDMID, PORT_D);
8525 if (I915_READ(PCH_DP_C) & DP_DETECTED)
8526 intel_dp_init(dev, PCH_DP_C, PORT_C);
8528 if (I915_READ(PCH_DP_D) & DP_DETECTED)
8529 intel_dp_init(dev, PCH_DP_D, PORT_D);
8530 } else if (IS_VALLEYVIEW(dev)) {
8531 /* Check for built-in panel first. Shares lanes with HDMI on SDVOC */
8532 if (I915_READ(VLV_DISPLAY_BASE + DP_C) & DP_DETECTED)
8533 intel_dp_init(dev, VLV_DISPLAY_BASE + DP_C, PORT_C);
8535 if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIB) & SDVO_DETECTED) {
8536 intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIB,
8538 if (I915_READ(VLV_DISPLAY_BASE + DP_B) & DP_DETECTED)
8539 intel_dp_init(dev, VLV_DISPLAY_BASE + DP_B, PORT_B);
8541 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) {
8544 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
8545 DRM_DEBUG_KMS("probing SDVOB\n");
8546 found = intel_sdvo_init(dev, GEN3_SDVOB, true);
8547 if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) {
8548 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
8549 intel_hdmi_init(dev, GEN4_HDMIB, PORT_B);
8552 if (!found && SUPPORTS_INTEGRATED_DP(dev)) {
8553 DRM_DEBUG_KMS("probing DP_B\n");
8554 intel_dp_init(dev, DP_B, PORT_B);
8558 /* Before G4X SDVOC doesn't have its own detect register */
8560 if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
8561 DRM_DEBUG_KMS("probing SDVOC\n");
8562 found = intel_sdvo_init(dev, GEN3_SDVOC, false);
8565 if (!found && (I915_READ(GEN3_SDVOC) & SDVO_DETECTED)) {
8567 if (SUPPORTS_INTEGRATED_HDMI(dev)) {
8568 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
8569 intel_hdmi_init(dev, GEN4_HDMIC, PORT_C);
8571 if (SUPPORTS_INTEGRATED_DP(dev)) {
8572 DRM_DEBUG_KMS("probing DP_C\n");
8573 intel_dp_init(dev, DP_C, PORT_C);
8577 if (SUPPORTS_INTEGRATED_DP(dev) &&
8578 (I915_READ(DP_D) & DP_DETECTED)) {
8579 DRM_DEBUG_KMS("probing DP_D\n");
8580 intel_dp_init(dev, DP_D, PORT_D);
8582 } else if (IS_GEN2(dev))
8583 intel_dvo_init(dev);
8585 if (SUPPORTS_TV(dev))
8588 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
8589 encoder->base.possible_crtcs = encoder->crtc_mask;
8590 encoder->base.possible_clones =
8591 intel_encoder_clones(encoder);
8594 intel_init_pch_refclk(dev);
8596 drm_helper_move_panel_connectors_to_head(dev);
8599 static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb)
8601 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
8603 drm_framebuffer_cleanup(fb);
8604 drm_gem_object_unreference_unlocked(&intel_fb->obj->base);
8609 static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb,
8610 struct drm_file *file,
8611 unsigned int *handle)
8613 struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
8614 struct drm_i915_gem_object *obj = intel_fb->obj;
8616 return drm_gem_handle_create(file, &obj->base, handle);
8619 static const struct drm_framebuffer_funcs intel_fb_funcs = {
8620 .destroy = intel_user_framebuffer_destroy,
8621 .create_handle = intel_user_framebuffer_create_handle,
8624 int intel_framebuffer_init(struct drm_device *dev,
8625 struct intel_framebuffer *intel_fb,
8626 struct drm_mode_fb_cmd2 *mode_cmd,
8627 struct drm_i915_gem_object *obj)
8631 if (obj->tiling_mode == I915_TILING_Y) {
8632 DRM_DEBUG("hardware does not support tiling Y\n");
8636 if (mode_cmd->pitches[0] & 63) {
8637 DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n",
8638 mode_cmd->pitches[0]);
8642 /* FIXME <= Gen4 stride limits are bit unclear */
8643 if (mode_cmd->pitches[0] > 32768) {
8644 DRM_DEBUG("pitch (%d) must be at less than 32768\n",
8645 mode_cmd->pitches[0]);
8649 if (obj->tiling_mode != I915_TILING_NONE &&
8650 mode_cmd->pitches[0] != obj->stride) {
8651 DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n",
8652 mode_cmd->pitches[0], obj->stride);
8656 /* Reject formats not supported by any plane early. */
8657 switch (mode_cmd->pixel_format) {
8659 case DRM_FORMAT_RGB565:
8660 case DRM_FORMAT_XRGB8888:
8661 case DRM_FORMAT_ARGB8888:
8663 case DRM_FORMAT_XRGB1555:
8664 case DRM_FORMAT_ARGB1555:
8665 if (INTEL_INFO(dev)->gen > 3) {
8666 DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format);
8670 case DRM_FORMAT_XBGR8888:
8671 case DRM_FORMAT_ABGR8888:
8672 case DRM_FORMAT_XRGB2101010:
8673 case DRM_FORMAT_ARGB2101010:
8674 case DRM_FORMAT_XBGR2101010:
8675 case DRM_FORMAT_ABGR2101010:
8676 if (INTEL_INFO(dev)->gen < 4) {
8677 DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format);
8681 case DRM_FORMAT_YUYV:
8682 case DRM_FORMAT_UYVY:
8683 case DRM_FORMAT_YVYU:
8684 case DRM_FORMAT_VYUY:
8685 if (INTEL_INFO(dev)->gen < 5) {
8686 DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format);
8691 DRM_DEBUG("unsupported pixel format 0x%08x\n", mode_cmd->pixel_format);
8695 /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
8696 if (mode_cmd->offsets[0] != 0)
8699 drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd);
8700 intel_fb->obj = obj;
8702 ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs);
8704 DRM_ERROR("framebuffer init failed %d\n", ret);
8711 static struct drm_framebuffer *
8712 intel_user_framebuffer_create(struct drm_device *dev,
8713 struct drm_file *filp,
8714 struct drm_mode_fb_cmd2 *mode_cmd)
8716 struct drm_i915_gem_object *obj;
8718 obj = to_intel_bo(drm_gem_object_lookup(dev, filp,
8719 mode_cmd->handles[0]));
8720 if (&obj->base == NULL)
8721 return ERR_PTR(-ENOENT);
8723 return intel_framebuffer_create(dev, mode_cmd, obj);
8726 static const struct drm_mode_config_funcs intel_mode_funcs = {
8727 .fb_create = intel_user_framebuffer_create,
8728 .output_poll_changed = intel_fb_output_poll_changed,
8731 /* Set up chip specific display functions */
8732 static void intel_init_display(struct drm_device *dev)
8734 struct drm_i915_private *dev_priv = dev->dev_private;
8737 dev_priv->display.get_pipe_config = haswell_get_pipe_config;
8738 dev_priv->display.crtc_mode_set = haswell_crtc_mode_set;
8739 dev_priv->display.crtc_enable = haswell_crtc_enable;
8740 dev_priv->display.crtc_disable = haswell_crtc_disable;
8741 dev_priv->display.off = haswell_crtc_off;
8742 dev_priv->display.update_plane = ironlake_update_plane;
8743 } else if (HAS_PCH_SPLIT(dev)) {
8744 dev_priv->display.get_pipe_config = ironlake_get_pipe_config;
8745 dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set;
8746 dev_priv->display.crtc_enable = ironlake_crtc_enable;
8747 dev_priv->display.crtc_disable = ironlake_crtc_disable;
8748 dev_priv->display.off = ironlake_crtc_off;
8749 dev_priv->display.update_plane = ironlake_update_plane;
8751 dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
8752 dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
8753 dev_priv->display.crtc_enable = i9xx_crtc_enable;
8754 dev_priv->display.crtc_disable = i9xx_crtc_disable;
8755 dev_priv->display.off = i9xx_crtc_off;
8756 dev_priv->display.update_plane = i9xx_update_plane;
8759 /* Returns the core display clock speed */
8760 if (IS_VALLEYVIEW(dev))
8761 dev_priv->display.get_display_clock_speed =
8762 valleyview_get_display_clock_speed;
8763 else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev)))
8764 dev_priv->display.get_display_clock_speed =
8765 i945_get_display_clock_speed;
8766 else if (IS_I915G(dev))
8767 dev_priv->display.get_display_clock_speed =
8768 i915_get_display_clock_speed;
8769 else if (IS_I945GM(dev) || IS_845G(dev) || IS_PINEVIEW_M(dev))
8770 dev_priv->display.get_display_clock_speed =
8771 i9xx_misc_get_display_clock_speed;
8772 else if (IS_I915GM(dev))
8773 dev_priv->display.get_display_clock_speed =
8774 i915gm_get_display_clock_speed;
8775 else if (IS_I865G(dev))
8776 dev_priv->display.get_display_clock_speed =
8777 i865_get_display_clock_speed;
8778 else if (IS_I85X(dev))
8779 dev_priv->display.get_display_clock_speed =
8780 i855_get_display_clock_speed;
8782 dev_priv->display.get_display_clock_speed =
8783 i830_get_display_clock_speed;
8785 if (HAS_PCH_SPLIT(dev)) {
8787 dev_priv->display.fdi_link_train = ironlake_fdi_link_train;
8788 dev_priv->display.write_eld = ironlake_write_eld;
8789 } else if (IS_GEN6(dev)) {
8790 dev_priv->display.fdi_link_train = gen6_fdi_link_train;
8791 dev_priv->display.write_eld = ironlake_write_eld;
8792 } else if (IS_IVYBRIDGE(dev)) {
8793 /* FIXME: detect B0+ stepping and use auto training */
8794 dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train;
8795 dev_priv->display.write_eld = ironlake_write_eld;
8796 dev_priv->display.modeset_global_resources =
8797 ivb_modeset_global_resources;
8798 } else if (IS_HASWELL(dev)) {
8799 dev_priv->display.fdi_link_train = hsw_fdi_link_train;
8800 dev_priv->display.write_eld = haswell_write_eld;
8801 dev_priv->display.modeset_global_resources =
8802 haswell_modeset_global_resources;
8804 } else if (IS_G4X(dev)) {
8805 dev_priv->display.write_eld = g4x_write_eld;
8808 /* Default just returns -ENODEV to indicate unsupported */
8809 dev_priv->display.queue_flip = intel_default_queue_flip;
8811 switch (INTEL_INFO(dev)->gen) {
8813 dev_priv->display.queue_flip = intel_gen2_queue_flip;
8817 dev_priv->display.queue_flip = intel_gen3_queue_flip;
8822 dev_priv->display.queue_flip = intel_gen4_queue_flip;
8826 dev_priv->display.queue_flip = intel_gen6_queue_flip;
8829 dev_priv->display.queue_flip = intel_gen7_queue_flip;
8835 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
8836 * resume, or other times. This quirk makes sure that's the case for
8839 static void quirk_pipea_force(struct drm_device *dev)
8841 struct drm_i915_private *dev_priv = dev->dev_private;
8843 dev_priv->quirks |= QUIRK_PIPEA_FORCE;
8844 DRM_INFO("applying pipe a force quirk\n");
8848 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
8850 static void quirk_ssc_force_disable(struct drm_device *dev)
8852 struct drm_i915_private *dev_priv = dev->dev_private;
8853 dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE;
8854 DRM_INFO("applying lvds SSC disable quirk\n");
8858 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
8861 static void quirk_invert_brightness(struct drm_device *dev)
8863 struct drm_i915_private *dev_priv = dev->dev_private;
8864 dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS;
8865 DRM_INFO("applying inverted panel brightness quirk\n");
8868 struct intel_quirk {
8870 int subsystem_vendor;
8871 int subsystem_device;
8872 void (*hook)(struct drm_device *dev);
8875 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
8876 struct intel_dmi_quirk {
8877 void (*hook)(struct drm_device *dev);
8878 const struct dmi_system_id (*dmi_id_list)[];
8881 static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
8883 DRM_INFO("Backlight polarity reversed on %s\n", id->ident);
8887 static const struct intel_dmi_quirk intel_dmi_quirks[] = {
8889 .dmi_id_list = &(const struct dmi_system_id[]) {
8891 .callback = intel_dmi_reverse_brightness,
8892 .ident = "NCR Corporation",
8893 .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
8894 DMI_MATCH(DMI_PRODUCT_NAME, ""),
8897 { } /* terminating entry */
8899 .hook = quirk_invert_brightness,
8903 static struct intel_quirk intel_quirks[] = {
8904 /* HP Mini needs pipe A force quirk (LP: #322104) */
8905 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force },
8907 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
8908 { 0x2592, 0x1179, 0x0001, quirk_pipea_force },
8910 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
8911 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force },
8913 /* 830/845 need to leave pipe A & dpll A up */
8914 { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
8915 { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
8917 /* Lenovo U160 cannot use SSC on LVDS */
8918 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },
8920 /* Sony Vaio Y cannot use SSC on LVDS */
8921 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
8923 /* Acer Aspire 5734Z must invert backlight brightness */
8924 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },
8926 /* Acer/eMachines G725 */
8927 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness },
8929 /* Acer/eMachines e725 */
8930 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },
8932 /* Acer/Packard Bell NCL20 */
8933 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness },
8935 /* Acer Aspire 4736Z */
8936 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },
8939 static void intel_init_quirks(struct drm_device *dev)
8941 struct pci_dev *d = dev->pdev;
8944 for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
8945 struct intel_quirk *q = &intel_quirks[i];
8947 if (d->device == q->device &&
8948 (d->subsystem_vendor == q->subsystem_vendor ||
8949 q->subsystem_vendor == PCI_ANY_ID) &&
8950 (d->subsystem_device == q->subsystem_device ||
8951 q->subsystem_device == PCI_ANY_ID))
8954 for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
8955 if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
8956 intel_dmi_quirks[i].hook(dev);
8960 /* Disable the VGA plane that we never use */
8961 static void i915_disable_vga(struct drm_device *dev)
8963 struct drm_i915_private *dev_priv = dev->dev_private;
8965 u32 vga_reg = i915_vgacntrl_reg(dev);
8967 vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
8968 outb(SR01, VGA_SR_INDEX);
8969 sr1 = inb(VGA_SR_DATA);
8970 outb(sr1 | 1<<5, VGA_SR_DATA);
8971 vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
8974 I915_WRITE(vga_reg, VGA_DISP_DISABLE);
8975 POSTING_READ(vga_reg);
8978 void intel_modeset_init_hw(struct drm_device *dev)
8980 intel_init_power_well(dev);
8982 intel_prepare_ddi(dev);
8984 intel_init_clock_gating(dev);
8986 mutex_lock(&dev->struct_mutex);
8987 intel_enable_gt_powersave(dev);
8988 mutex_unlock(&dev->struct_mutex);
8991 void intel_modeset_init(struct drm_device *dev)
8993 struct drm_i915_private *dev_priv = dev->dev_private;
8996 drm_mode_config_init(dev);
8998 dev->mode_config.min_width = 0;
8999 dev->mode_config.min_height = 0;
9001 dev->mode_config.preferred_depth = 24;
9002 dev->mode_config.prefer_shadow = 1;
9004 dev->mode_config.funcs = &intel_mode_funcs;
9006 intel_init_quirks(dev);
9010 if (INTEL_INFO(dev)->num_pipes == 0)
9013 intel_init_display(dev);
9016 dev->mode_config.max_width = 2048;
9017 dev->mode_config.max_height = 2048;
9018 } else if (IS_GEN3(dev)) {
9019 dev->mode_config.max_width = 4096;
9020 dev->mode_config.max_height = 4096;
9022 dev->mode_config.max_width = 8192;
9023 dev->mode_config.max_height = 8192;
9025 dev->mode_config.fb_base = dev_priv->gtt.mappable_base;
9027 DRM_DEBUG_KMS("%d display pipe%s available.\n",
9028 INTEL_INFO(dev)->num_pipes,
9029 INTEL_INFO(dev)->num_pipes > 1 ? "s" : "");
9031 for (i = 0; i < INTEL_INFO(dev)->num_pipes; i++) {
9032 intel_crtc_init(dev, i);
9033 for (j = 0; j < dev_priv->num_plane; j++) {
9034 ret = intel_plane_init(dev, i, j);
9036 DRM_DEBUG_KMS("pipe %d plane %d init failed: %d\n",
9041 intel_cpu_pll_init(dev);
9042 intel_pch_pll_init(dev);
9044 /* Just disable it once at startup */
9045 i915_disable_vga(dev);
9046 intel_setup_outputs(dev);
9048 /* Just in case the BIOS is doing something questionable. */
9049 intel_disable_fbc(dev);
9053 intel_connector_break_all_links(struct intel_connector *connector)
9055 connector->base.dpms = DRM_MODE_DPMS_OFF;
9056 connector->base.encoder = NULL;
9057 connector->encoder->connectors_active = false;
9058 connector->encoder->base.crtc = NULL;
9061 static void intel_enable_pipe_a(struct drm_device *dev)
9063 struct intel_connector *connector;
9064 struct drm_connector *crt = NULL;
9065 struct intel_load_detect_pipe load_detect_temp;
9067 /* We can't just switch on the pipe A, we need to set things up with a
9068 * proper mode and output configuration. As a gross hack, enable pipe A
9069 * by enabling the load detect pipe once. */
9070 list_for_each_entry(connector,
9071 &dev->mode_config.connector_list,
9073 if (connector->encoder->type == INTEL_OUTPUT_ANALOG) {
9074 crt = &connector->base;
9082 if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp))
9083 intel_release_load_detect_pipe(crt, &load_detect_temp);
9089 intel_check_plane_mapping(struct intel_crtc *crtc)
9091 struct drm_device *dev = crtc->base.dev;
9092 struct drm_i915_private *dev_priv = dev->dev_private;
9095 if (INTEL_INFO(dev)->num_pipes == 1)
9098 reg = DSPCNTR(!crtc->plane);
9099 val = I915_READ(reg);
9101 if ((val & DISPLAY_PLANE_ENABLE) &&
9102 (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe))
9108 static void intel_sanitize_crtc(struct intel_crtc *crtc)
9110 struct drm_device *dev = crtc->base.dev;
9111 struct drm_i915_private *dev_priv = dev->dev_private;
9114 /* Clear any frame start delays used for debugging left by the BIOS */
9115 reg = PIPECONF(crtc->cpu_transcoder);
9116 I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK);
9118 /* We need to sanitize the plane -> pipe mapping first because this will
9119 * disable the crtc (and hence change the state) if it is wrong. Note
9120 * that gen4+ has a fixed plane -> pipe mapping. */
9121 if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) {
9122 struct intel_connector *connector;
9125 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
9126 crtc->base.base.id);
9128 /* Pipe has the wrong plane attached and the plane is active.
9129 * Temporarily change the plane mapping and disable everything
9131 plane = crtc->plane;
9132 crtc->plane = !plane;
9133 dev_priv->display.crtc_disable(&crtc->base);
9134 crtc->plane = plane;
9136 /* ... and break all links. */
9137 list_for_each_entry(connector, &dev->mode_config.connector_list,
9139 if (connector->encoder->base.crtc != &crtc->base)
9142 intel_connector_break_all_links(connector);
9145 WARN_ON(crtc->active);
9146 crtc->base.enabled = false;
9149 if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
9150 crtc->pipe == PIPE_A && !crtc->active) {
9151 /* BIOS forgot to enable pipe A, this mostly happens after
9152 * resume. Force-enable the pipe to fix this, the update_dpms
9153 * call below we restore the pipe to the right state, but leave
9154 * the required bits on. */
9155 intel_enable_pipe_a(dev);
9158 /* Adjust the state of the output pipe according to whether we
9159 * have active connectors/encoders. */
9160 intel_crtc_update_dpms(&crtc->base);
9162 if (crtc->active != crtc->base.enabled) {
9163 struct intel_encoder *encoder;
9165 /* This can happen either due to bugs in the get_hw_state
9166 * functions or because the pipe is force-enabled due to the
9168 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
9170 crtc->base.enabled ? "enabled" : "disabled",
9171 crtc->active ? "enabled" : "disabled");
9173 crtc->base.enabled = crtc->active;
9175 /* Because we only establish the connector -> encoder ->
9176 * crtc links if something is active, this means the
9177 * crtc is now deactivated. Break the links. connector
9178 * -> encoder links are only establish when things are
9179 * actually up, hence no need to break them. */
9180 WARN_ON(crtc->active);
9182 for_each_encoder_on_crtc(dev, &crtc->base, encoder) {
9183 WARN_ON(encoder->connectors_active);
9184 encoder->base.crtc = NULL;
9189 static void intel_sanitize_encoder(struct intel_encoder *encoder)
9191 struct intel_connector *connector;
9192 struct drm_device *dev = encoder->base.dev;
9194 /* We need to check both for a crtc link (meaning that the
9195 * encoder is active and trying to read from a pipe) and the
9196 * pipe itself being active. */
9197 bool has_active_crtc = encoder->base.crtc &&
9198 to_intel_crtc(encoder->base.crtc)->active;
9200 if (encoder->connectors_active && !has_active_crtc) {
9201 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
9202 encoder->base.base.id,
9203 drm_get_encoder_name(&encoder->base));
9205 /* Connector is active, but has no active pipe. This is
9206 * fallout from our resume register restoring. Disable
9207 * the encoder manually again. */
9208 if (encoder->base.crtc) {
9209 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
9210 encoder->base.base.id,
9211 drm_get_encoder_name(&encoder->base));
9212 encoder->disable(encoder);
9215 /* Inconsistent output/port/pipe state happens presumably due to
9216 * a bug in one of the get_hw_state functions. Or someplace else
9217 * in our code, like the register restore mess on resume. Clamp
9218 * things to off as a safer default. */
9219 list_for_each_entry(connector,
9220 &dev->mode_config.connector_list,
9222 if (connector->encoder != encoder)
9225 intel_connector_break_all_links(connector);
9228 /* Enabled encoders without active connectors will be fixed in
9229 * the crtc fixup. */
9232 void i915_redisable_vga(struct drm_device *dev)
9234 struct drm_i915_private *dev_priv = dev->dev_private;
9235 u32 vga_reg = i915_vgacntrl_reg(dev);
9237 if (I915_READ(vga_reg) != VGA_DISP_DISABLE) {
9238 DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
9239 i915_disable_vga(dev);
9243 /* Scan out the current hw modeset state, sanitizes it and maps it into the drm
9244 * and i915 state tracking structures. */
9245 void intel_modeset_setup_hw_state(struct drm_device *dev,
9248 struct drm_i915_private *dev_priv = dev->dev_private;
9251 struct drm_plane *plane;
9252 struct intel_crtc *crtc;
9253 struct intel_encoder *encoder;
9254 struct intel_connector *connector;
9257 tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP));
9259 if (tmp & TRANS_DDI_FUNC_ENABLE) {
9260 switch (tmp & TRANS_DDI_EDP_INPUT_MASK) {
9261 case TRANS_DDI_EDP_INPUT_A_ON:
9262 case TRANS_DDI_EDP_INPUT_A_ONOFF:
9265 case TRANS_DDI_EDP_INPUT_B_ONOFF:
9268 case TRANS_DDI_EDP_INPUT_C_ONOFF:
9272 /* A bogus value has been programmed, disable
9274 WARN(1, "Bogus eDP source %08x\n", tmp);
9275 intel_ddi_disable_transcoder_func(dev_priv,
9280 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
9281 crtc->cpu_transcoder = TRANSCODER_EDP;
9283 DRM_DEBUG_KMS("Pipe %c using transcoder EDP\n",
9289 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
9291 memset(&crtc->config, 0, sizeof(crtc->config));
9292 crtc->active = dev_priv->display.get_pipe_config(crtc,
9295 crtc->base.enabled = crtc->active;
9297 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
9299 crtc->active ? "enabled" : "disabled");
9303 intel_ddi_setup_hw_pll_state(dev);
9305 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9309 if (encoder->get_hw_state(encoder, &pipe)) {
9310 encoder->base.crtc =
9311 dev_priv->pipe_to_crtc_mapping[pipe];
9313 encoder->base.crtc = NULL;
9316 encoder->connectors_active = false;
9317 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe=%i\n",
9318 encoder->base.base.id,
9319 drm_get_encoder_name(&encoder->base),
9320 encoder->base.crtc ? "enabled" : "disabled",
9324 list_for_each_entry(connector, &dev->mode_config.connector_list,
9326 if (connector->get_hw_state(connector)) {
9327 connector->base.dpms = DRM_MODE_DPMS_ON;
9328 connector->encoder->connectors_active = true;
9329 connector->base.encoder = &connector->encoder->base;
9331 connector->base.dpms = DRM_MODE_DPMS_OFF;
9332 connector->base.encoder = NULL;
9334 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
9335 connector->base.base.id,
9336 drm_get_connector_name(&connector->base),
9337 connector->base.encoder ? "enabled" : "disabled");
9340 /* HW state is read out, now we need to sanitize this mess. */
9341 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
9343 intel_sanitize_encoder(encoder);
9346 for_each_pipe(pipe) {
9347 crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
9348 intel_sanitize_crtc(crtc);
9351 if (force_restore) {
9353 * We need to use raw interfaces for restoring state to avoid
9354 * checking (bogus) intermediate states.
9356 for_each_pipe(pipe) {
9357 struct drm_crtc *crtc =
9358 dev_priv->pipe_to_crtc_mapping[pipe];
9360 __intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y,
9363 list_for_each_entry(plane, &dev->mode_config.plane_list, head)
9364 intel_plane_restore(plane);
9366 i915_redisable_vga(dev);
9368 intel_modeset_update_staged_output_state(dev);
9371 intel_modeset_check_state(dev);
9373 drm_mode_config_reset(dev);
9376 void intel_modeset_gem_init(struct drm_device *dev)
9378 intel_modeset_init_hw(dev);
9380 intel_setup_overlay(dev);
9382 intel_modeset_setup_hw_state(dev, false);
9385 void intel_modeset_cleanup(struct drm_device *dev)
9387 struct drm_i915_private *dev_priv = dev->dev_private;
9388 struct drm_crtc *crtc;
9389 struct intel_crtc *intel_crtc;
9391 drm_kms_helper_poll_fini(dev);
9392 mutex_lock(&dev->struct_mutex);
9394 intel_unregister_dsm_handler();
9397 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
9398 /* Skip inactive CRTCs */
9402 intel_crtc = to_intel_crtc(crtc);
9403 intel_increase_pllclock(crtc);
9406 intel_disable_fbc(dev);
9408 intel_disable_gt_powersave(dev);
9410 ironlake_teardown_rc6(dev);
9412 if (IS_VALLEYVIEW(dev))
9415 mutex_unlock(&dev->struct_mutex);
9417 /* Disable the irq before mode object teardown, for the irq might
9418 * enqueue unpin/hotplug work. */
9419 drm_irq_uninstall(dev);
9420 cancel_work_sync(&dev_priv->hotplug_work);
9421 cancel_work_sync(&dev_priv->rps.work);
9423 /* flush any delayed tasks or pending work */
9424 flush_scheduled_work();
9426 drm_mode_config_cleanup(dev);
9428 intel_cleanup_overlay(dev);
9432 * Return which encoder is currently attached for connector.
9434 struct drm_encoder *intel_best_encoder(struct drm_connector *connector)
9436 return &intel_attached_encoder(connector)->base;
9439 void intel_connector_attach_encoder(struct intel_connector *connector,
9440 struct intel_encoder *encoder)
9442 connector->encoder = encoder;
9443 drm_mode_connector_attach_encoder(&connector->base,
9448 * set vga decode state - true == enable VGA decode
9450 int intel_modeset_vga_set_state(struct drm_device *dev, bool state)
9452 struct drm_i915_private *dev_priv = dev->dev_private;
9455 pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl);
9457 gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE;
9459 gmch_ctrl |= INTEL_GMCH_VGA_DISABLE;
9460 pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl);
9464 #ifdef CONFIG_DEBUG_FS
9465 #include <linux/seq_file.h>
9467 struct intel_display_error_state {
9468 struct intel_cursor_error_state {
9473 } cursor[I915_MAX_PIPES];
9475 struct intel_pipe_error_state {
9485 } pipe[I915_MAX_PIPES];
9487 struct intel_plane_error_state {
9495 } plane[I915_MAX_PIPES];
9498 struct intel_display_error_state *
9499 intel_display_capture_error_state(struct drm_device *dev)
9501 drm_i915_private_t *dev_priv = dev->dev_private;
9502 struct intel_display_error_state *error;
9503 enum transcoder cpu_transcoder;
9506 error = kmalloc(sizeof(*error), GFP_ATOMIC);
9511 cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, i);
9513 if (INTEL_INFO(dev)->gen <= 6 || IS_VALLEYVIEW(dev)) {
9514 error->cursor[i].control = I915_READ(CURCNTR(i));
9515 error->cursor[i].position = I915_READ(CURPOS(i));
9516 error->cursor[i].base = I915_READ(CURBASE(i));
9518 error->cursor[i].control = I915_READ(CURCNTR_IVB(i));
9519 error->cursor[i].position = I915_READ(CURPOS_IVB(i));
9520 error->cursor[i].base = I915_READ(CURBASE_IVB(i));
9523 error->plane[i].control = I915_READ(DSPCNTR(i));
9524 error->plane[i].stride = I915_READ(DSPSTRIDE(i));
9525 if (INTEL_INFO(dev)->gen <= 3) {
9526 error->plane[i].size = I915_READ(DSPSIZE(i));
9527 error->plane[i].pos = I915_READ(DSPPOS(i));
9529 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
9530 error->plane[i].addr = I915_READ(DSPADDR(i));
9531 if (INTEL_INFO(dev)->gen >= 4) {
9532 error->plane[i].surface = I915_READ(DSPSURF(i));
9533 error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i));
9536 error->pipe[i].conf = I915_READ(PIPECONF(cpu_transcoder));
9537 error->pipe[i].source = I915_READ(PIPESRC(i));
9538 error->pipe[i].htotal = I915_READ(HTOTAL(cpu_transcoder));
9539 error->pipe[i].hblank = I915_READ(HBLANK(cpu_transcoder));
9540 error->pipe[i].hsync = I915_READ(HSYNC(cpu_transcoder));
9541 error->pipe[i].vtotal = I915_READ(VTOTAL(cpu_transcoder));
9542 error->pipe[i].vblank = I915_READ(VBLANK(cpu_transcoder));
9543 error->pipe[i].vsync = I915_READ(VSYNC(cpu_transcoder));
9550 intel_display_print_error_state(struct seq_file *m,
9551 struct drm_device *dev,
9552 struct intel_display_error_state *error)
9556 seq_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes);
9558 seq_printf(m, "Pipe [%d]:\n", i);
9559 seq_printf(m, " CONF: %08x\n", error->pipe[i].conf);
9560 seq_printf(m, " SRC: %08x\n", error->pipe[i].source);
9561 seq_printf(m, " HTOTAL: %08x\n", error->pipe[i].htotal);
9562 seq_printf(m, " HBLANK: %08x\n", error->pipe[i].hblank);
9563 seq_printf(m, " HSYNC: %08x\n", error->pipe[i].hsync);
9564 seq_printf(m, " VTOTAL: %08x\n", error->pipe[i].vtotal);
9565 seq_printf(m, " VBLANK: %08x\n", error->pipe[i].vblank);
9566 seq_printf(m, " VSYNC: %08x\n", error->pipe[i].vsync);
9568 seq_printf(m, "Plane [%d]:\n", i);
9569 seq_printf(m, " CNTR: %08x\n", error->plane[i].control);
9570 seq_printf(m, " STRIDE: %08x\n", error->plane[i].stride);
9571 if (INTEL_INFO(dev)->gen <= 3) {
9572 seq_printf(m, " SIZE: %08x\n", error->plane[i].size);
9573 seq_printf(m, " POS: %08x\n", error->plane[i].pos);
9575 if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
9576 seq_printf(m, " ADDR: %08x\n", error->plane[i].addr);
9577 if (INTEL_INFO(dev)->gen >= 4) {
9578 seq_printf(m, " SURF: %08x\n", error->plane[i].surface);
9579 seq_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset);
9582 seq_printf(m, "Cursor [%d]:\n", i);
9583 seq_printf(m, " CNTR: %08x\n", error->cursor[i].control);
9584 seq_printf(m, " POS: %08x\n", error->cursor[i].position);
9585 seq_printf(m, " BASE: %08x\n", error->cursor[i].base);