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 #define HAS_eDP (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))
46 bool intel_pipe_has_type(struct drm_crtc
*crtc
, int type
);
47 static void intel_increase_pllclock(struct drm_crtc
*crtc
);
48 static void intel_crtc_update_cursor(struct drm_crtc
*crtc
, bool on
);
71 #define INTEL_P2_NUM 2
72 typedef struct intel_limit intel_limit_t
;
74 intel_range_t dot
, vco
, n
, m
, m1
, m2
, p
, p1
;
76 bool (* find_pll
)(const intel_limit_t
*, struct drm_crtc
*,
77 int, int, intel_clock_t
*, intel_clock_t
*);
81 #define IRONLAKE_FDI_FREQ 2700000 /* in kHz for mode->clock */
84 intel_find_best_PLL(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
85 int target
, int refclk
, intel_clock_t
*match_clock
,
86 intel_clock_t
*best_clock
);
88 intel_g4x_find_best_PLL(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
89 int target
, int refclk
, intel_clock_t
*match_clock
,
90 intel_clock_t
*best_clock
);
93 intel_find_pll_g4x_dp(const intel_limit_t
*, struct drm_crtc
*crtc
,
94 int target
, int refclk
, intel_clock_t
*match_clock
,
95 intel_clock_t
*best_clock
);
97 intel_find_pll_ironlake_dp(const intel_limit_t
*, struct drm_crtc
*crtc
,
98 int target
, int refclk
, intel_clock_t
*match_clock
,
99 intel_clock_t
*best_clock
);
102 intel_vlv_find_best_pll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
103 int target
, int refclk
, intel_clock_t
*match_clock
,
104 intel_clock_t
*best_clock
);
106 static inline u32
/* units of 100MHz */
107 intel_fdi_link_freq(struct drm_device
*dev
)
110 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
111 return (I915_READ(FDI_PLL_BIOS_0
) & FDI_PLL_FB_CLOCK_MASK
) + 2;
116 static const intel_limit_t intel_limits_i8xx_dvo
= {
117 .dot
= { .min
= 25000, .max
= 350000 },
118 .vco
= { .min
= 930000, .max
= 1400000 },
119 .n
= { .min
= 3, .max
= 16 },
120 .m
= { .min
= 96, .max
= 140 },
121 .m1
= { .min
= 18, .max
= 26 },
122 .m2
= { .min
= 6, .max
= 16 },
123 .p
= { .min
= 4, .max
= 128 },
124 .p1
= { .min
= 2, .max
= 33 },
125 .p2
= { .dot_limit
= 165000,
126 .p2_slow
= 4, .p2_fast
= 2 },
127 .find_pll
= intel_find_best_PLL
,
130 static const intel_limit_t intel_limits_i8xx_lvds
= {
131 .dot
= { .min
= 25000, .max
= 350000 },
132 .vco
= { .min
= 930000, .max
= 1400000 },
133 .n
= { .min
= 3, .max
= 16 },
134 .m
= { .min
= 96, .max
= 140 },
135 .m1
= { .min
= 18, .max
= 26 },
136 .m2
= { .min
= 6, .max
= 16 },
137 .p
= { .min
= 4, .max
= 128 },
138 .p1
= { .min
= 1, .max
= 6 },
139 .p2
= { .dot_limit
= 165000,
140 .p2_slow
= 14, .p2_fast
= 7 },
141 .find_pll
= intel_find_best_PLL
,
144 static const intel_limit_t intel_limits_i9xx_sdvo
= {
145 .dot
= { .min
= 20000, .max
= 400000 },
146 .vco
= { .min
= 1400000, .max
= 2800000 },
147 .n
= { .min
= 1, .max
= 6 },
148 .m
= { .min
= 70, .max
= 120 },
149 .m1
= { .min
= 10, .max
= 22 },
150 .m2
= { .min
= 5, .max
= 9 },
151 .p
= { .min
= 5, .max
= 80 },
152 .p1
= { .min
= 1, .max
= 8 },
153 .p2
= { .dot_limit
= 200000,
154 .p2_slow
= 10, .p2_fast
= 5 },
155 .find_pll
= intel_find_best_PLL
,
158 static const intel_limit_t intel_limits_i9xx_lvds
= {
159 .dot
= { .min
= 20000, .max
= 400000 },
160 .vco
= { .min
= 1400000, .max
= 2800000 },
161 .n
= { .min
= 1, .max
= 6 },
162 .m
= { .min
= 70, .max
= 120 },
163 .m1
= { .min
= 10, .max
= 22 },
164 .m2
= { .min
= 5, .max
= 9 },
165 .p
= { .min
= 7, .max
= 98 },
166 .p1
= { .min
= 1, .max
= 8 },
167 .p2
= { .dot_limit
= 112000,
168 .p2_slow
= 14, .p2_fast
= 7 },
169 .find_pll
= intel_find_best_PLL
,
173 static const intel_limit_t intel_limits_g4x_sdvo
= {
174 .dot
= { .min
= 25000, .max
= 270000 },
175 .vco
= { .min
= 1750000, .max
= 3500000},
176 .n
= { .min
= 1, .max
= 4 },
177 .m
= { .min
= 104, .max
= 138 },
178 .m1
= { .min
= 17, .max
= 23 },
179 .m2
= { .min
= 5, .max
= 11 },
180 .p
= { .min
= 10, .max
= 30 },
181 .p1
= { .min
= 1, .max
= 3},
182 .p2
= { .dot_limit
= 270000,
186 .find_pll
= intel_g4x_find_best_PLL
,
189 static const intel_limit_t intel_limits_g4x_hdmi
= {
190 .dot
= { .min
= 22000, .max
= 400000 },
191 .vco
= { .min
= 1750000, .max
= 3500000},
192 .n
= { .min
= 1, .max
= 4 },
193 .m
= { .min
= 104, .max
= 138 },
194 .m1
= { .min
= 16, .max
= 23 },
195 .m2
= { .min
= 5, .max
= 11 },
196 .p
= { .min
= 5, .max
= 80 },
197 .p1
= { .min
= 1, .max
= 8},
198 .p2
= { .dot_limit
= 165000,
199 .p2_slow
= 10, .p2_fast
= 5 },
200 .find_pll
= intel_g4x_find_best_PLL
,
203 static const intel_limit_t intel_limits_g4x_single_channel_lvds
= {
204 .dot
= { .min
= 20000, .max
= 115000 },
205 .vco
= { .min
= 1750000, .max
= 3500000 },
206 .n
= { .min
= 1, .max
= 3 },
207 .m
= { .min
= 104, .max
= 138 },
208 .m1
= { .min
= 17, .max
= 23 },
209 .m2
= { .min
= 5, .max
= 11 },
210 .p
= { .min
= 28, .max
= 112 },
211 .p1
= { .min
= 2, .max
= 8 },
212 .p2
= { .dot_limit
= 0,
213 .p2_slow
= 14, .p2_fast
= 14
215 .find_pll
= intel_g4x_find_best_PLL
,
218 static const intel_limit_t intel_limits_g4x_dual_channel_lvds
= {
219 .dot
= { .min
= 80000, .max
= 224000 },
220 .vco
= { .min
= 1750000, .max
= 3500000 },
221 .n
= { .min
= 1, .max
= 3 },
222 .m
= { .min
= 104, .max
= 138 },
223 .m1
= { .min
= 17, .max
= 23 },
224 .m2
= { .min
= 5, .max
= 11 },
225 .p
= { .min
= 14, .max
= 42 },
226 .p1
= { .min
= 2, .max
= 6 },
227 .p2
= { .dot_limit
= 0,
228 .p2_slow
= 7, .p2_fast
= 7
230 .find_pll
= intel_g4x_find_best_PLL
,
233 static const intel_limit_t intel_limits_g4x_display_port
= {
234 .dot
= { .min
= 161670, .max
= 227000 },
235 .vco
= { .min
= 1750000, .max
= 3500000},
236 .n
= { .min
= 1, .max
= 2 },
237 .m
= { .min
= 97, .max
= 108 },
238 .m1
= { .min
= 0x10, .max
= 0x12 },
239 .m2
= { .min
= 0x05, .max
= 0x06 },
240 .p
= { .min
= 10, .max
= 20 },
241 .p1
= { .min
= 1, .max
= 2},
242 .p2
= { .dot_limit
= 0,
243 .p2_slow
= 10, .p2_fast
= 10 },
244 .find_pll
= intel_find_pll_g4x_dp
,
247 static const intel_limit_t intel_limits_pineview_sdvo
= {
248 .dot
= { .min
= 20000, .max
= 400000},
249 .vco
= { .min
= 1700000, .max
= 3500000 },
250 /* Pineview's Ncounter is a ring counter */
251 .n
= { .min
= 3, .max
= 6 },
252 .m
= { .min
= 2, .max
= 256 },
253 /* Pineview only has one combined m divider, which we treat as m2. */
254 .m1
= { .min
= 0, .max
= 0 },
255 .m2
= { .min
= 0, .max
= 254 },
256 .p
= { .min
= 5, .max
= 80 },
257 .p1
= { .min
= 1, .max
= 8 },
258 .p2
= { .dot_limit
= 200000,
259 .p2_slow
= 10, .p2_fast
= 5 },
260 .find_pll
= intel_find_best_PLL
,
263 static const intel_limit_t intel_limits_pineview_lvds
= {
264 .dot
= { .min
= 20000, .max
= 400000 },
265 .vco
= { .min
= 1700000, .max
= 3500000 },
266 .n
= { .min
= 3, .max
= 6 },
267 .m
= { .min
= 2, .max
= 256 },
268 .m1
= { .min
= 0, .max
= 0 },
269 .m2
= { .min
= 0, .max
= 254 },
270 .p
= { .min
= 7, .max
= 112 },
271 .p1
= { .min
= 1, .max
= 8 },
272 .p2
= { .dot_limit
= 112000,
273 .p2_slow
= 14, .p2_fast
= 14 },
274 .find_pll
= intel_find_best_PLL
,
277 /* Ironlake / Sandybridge
279 * We calculate clock using (register_value + 2) for N/M1/M2, so here
280 * the range value for them is (actual_value - 2).
282 static const intel_limit_t intel_limits_ironlake_dac
= {
283 .dot
= { .min
= 25000, .max
= 350000 },
284 .vco
= { .min
= 1760000, .max
= 3510000 },
285 .n
= { .min
= 1, .max
= 5 },
286 .m
= { .min
= 79, .max
= 127 },
287 .m1
= { .min
= 12, .max
= 22 },
288 .m2
= { .min
= 5, .max
= 9 },
289 .p
= { .min
= 5, .max
= 80 },
290 .p1
= { .min
= 1, .max
= 8 },
291 .p2
= { .dot_limit
= 225000,
292 .p2_slow
= 10, .p2_fast
= 5 },
293 .find_pll
= intel_g4x_find_best_PLL
,
296 static const intel_limit_t intel_limits_ironlake_single_lvds
= {
297 .dot
= { .min
= 25000, .max
= 350000 },
298 .vco
= { .min
= 1760000, .max
= 3510000 },
299 .n
= { .min
= 1, .max
= 3 },
300 .m
= { .min
= 79, .max
= 118 },
301 .m1
= { .min
= 12, .max
= 22 },
302 .m2
= { .min
= 5, .max
= 9 },
303 .p
= { .min
= 28, .max
= 112 },
304 .p1
= { .min
= 2, .max
= 8 },
305 .p2
= { .dot_limit
= 225000,
306 .p2_slow
= 14, .p2_fast
= 14 },
307 .find_pll
= intel_g4x_find_best_PLL
,
310 static const intel_limit_t intel_limits_ironlake_dual_lvds
= {
311 .dot
= { .min
= 25000, .max
= 350000 },
312 .vco
= { .min
= 1760000, .max
= 3510000 },
313 .n
= { .min
= 1, .max
= 3 },
314 .m
= { .min
= 79, .max
= 127 },
315 .m1
= { .min
= 12, .max
= 22 },
316 .m2
= { .min
= 5, .max
= 9 },
317 .p
= { .min
= 14, .max
= 56 },
318 .p1
= { .min
= 2, .max
= 8 },
319 .p2
= { .dot_limit
= 225000,
320 .p2_slow
= 7, .p2_fast
= 7 },
321 .find_pll
= intel_g4x_find_best_PLL
,
324 /* LVDS 100mhz refclk limits. */
325 static const intel_limit_t intel_limits_ironlake_single_lvds_100m
= {
326 .dot
= { .min
= 25000, .max
= 350000 },
327 .vco
= { .min
= 1760000, .max
= 3510000 },
328 .n
= { .min
= 1, .max
= 2 },
329 .m
= { .min
= 79, .max
= 126 },
330 .m1
= { .min
= 12, .max
= 22 },
331 .m2
= { .min
= 5, .max
= 9 },
332 .p
= { .min
= 28, .max
= 112 },
333 .p1
= { .min
= 2, .max
= 8 },
334 .p2
= { .dot_limit
= 225000,
335 .p2_slow
= 14, .p2_fast
= 14 },
336 .find_pll
= intel_g4x_find_best_PLL
,
339 static const intel_limit_t intel_limits_ironlake_dual_lvds_100m
= {
340 .dot
= { .min
= 25000, .max
= 350000 },
341 .vco
= { .min
= 1760000, .max
= 3510000 },
342 .n
= { .min
= 1, .max
= 3 },
343 .m
= { .min
= 79, .max
= 126 },
344 .m1
= { .min
= 12, .max
= 22 },
345 .m2
= { .min
= 5, .max
= 9 },
346 .p
= { .min
= 14, .max
= 42 },
347 .p1
= { .min
= 2, .max
= 6 },
348 .p2
= { .dot_limit
= 225000,
349 .p2_slow
= 7, .p2_fast
= 7 },
350 .find_pll
= intel_g4x_find_best_PLL
,
353 static const intel_limit_t intel_limits_ironlake_display_port
= {
354 .dot
= { .min
= 25000, .max
= 350000 },
355 .vco
= { .min
= 1760000, .max
= 3510000},
356 .n
= { .min
= 1, .max
= 2 },
357 .m
= { .min
= 81, .max
= 90 },
358 .m1
= { .min
= 12, .max
= 22 },
359 .m2
= { .min
= 5, .max
= 9 },
360 .p
= { .min
= 10, .max
= 20 },
361 .p1
= { .min
= 1, .max
= 2},
362 .p2
= { .dot_limit
= 0,
363 .p2_slow
= 10, .p2_fast
= 10 },
364 .find_pll
= intel_find_pll_ironlake_dp
,
367 static const intel_limit_t intel_limits_vlv_dac
= {
368 .dot
= { .min
= 25000, .max
= 270000 },
369 .vco
= { .min
= 4000000, .max
= 6000000 },
370 .n
= { .min
= 1, .max
= 7 },
371 .m
= { .min
= 22, .max
= 450 }, /* guess */
372 .m1
= { .min
= 2, .max
= 3 },
373 .m2
= { .min
= 11, .max
= 156 },
374 .p
= { .min
= 10, .max
= 30 },
375 .p1
= { .min
= 2, .max
= 3 },
376 .p2
= { .dot_limit
= 270000,
377 .p2_slow
= 2, .p2_fast
= 20 },
378 .find_pll
= intel_vlv_find_best_pll
,
381 static const intel_limit_t intel_limits_vlv_hdmi
= {
382 .dot
= { .min
= 20000, .max
= 165000 },
383 .vco
= { .min
= 5994000, .max
= 4000000 },
384 .n
= { .min
= 1, .max
= 7 },
385 .m
= { .min
= 60, .max
= 300 }, /* guess */
386 .m1
= { .min
= 2, .max
= 3 },
387 .m2
= { .min
= 11, .max
= 156 },
388 .p
= { .min
= 10, .max
= 30 },
389 .p1
= { .min
= 2, .max
= 3 },
390 .p2
= { .dot_limit
= 270000,
391 .p2_slow
= 2, .p2_fast
= 20 },
392 .find_pll
= intel_vlv_find_best_pll
,
395 static const intel_limit_t intel_limits_vlv_dp
= {
396 .dot
= { .min
= 162000, .max
= 270000 },
397 .vco
= { .min
= 5994000, .max
= 4000000 },
398 .n
= { .min
= 1, .max
= 7 },
399 .m
= { .min
= 60, .max
= 300 }, /* guess */
400 .m1
= { .min
= 2, .max
= 3 },
401 .m2
= { .min
= 11, .max
= 156 },
402 .p
= { .min
= 10, .max
= 30 },
403 .p1
= { .min
= 2, .max
= 3 },
404 .p2
= { .dot_limit
= 270000,
405 .p2_slow
= 2, .p2_fast
= 20 },
406 .find_pll
= intel_vlv_find_best_pll
,
409 u32
intel_dpio_read(struct drm_i915_private
*dev_priv
, int reg
)
414 spin_lock_irqsave(&dev_priv
->dpio_lock
, flags
);
415 if (wait_for_atomic_us((I915_READ(DPIO_PKT
) & DPIO_BUSY
) == 0, 100)) {
416 DRM_ERROR("DPIO idle wait timed out\n");
420 I915_WRITE(DPIO_REG
, reg
);
421 I915_WRITE(DPIO_PKT
, DPIO_RID
| DPIO_OP_READ
| DPIO_PORTID
|
423 if (wait_for_atomic_us((I915_READ(DPIO_PKT
) & DPIO_BUSY
) == 0, 100)) {
424 DRM_ERROR("DPIO read wait timed out\n");
427 val
= I915_READ(DPIO_DATA
);
430 spin_unlock_irqrestore(&dev_priv
->dpio_lock
, flags
);
434 static void intel_dpio_write(struct drm_i915_private
*dev_priv
, int reg
,
439 spin_lock_irqsave(&dev_priv
->dpio_lock
, flags
);
440 if (wait_for_atomic_us((I915_READ(DPIO_PKT
) & DPIO_BUSY
) == 0, 100)) {
441 DRM_ERROR("DPIO idle wait timed out\n");
445 I915_WRITE(DPIO_DATA
, val
);
446 I915_WRITE(DPIO_REG
, reg
);
447 I915_WRITE(DPIO_PKT
, DPIO_RID
| DPIO_OP_WRITE
| DPIO_PORTID
|
449 if (wait_for_atomic_us((I915_READ(DPIO_PKT
) & DPIO_BUSY
) == 0, 100))
450 DRM_ERROR("DPIO write wait timed out\n");
453 spin_unlock_irqrestore(&dev_priv
->dpio_lock
, flags
);
456 static void vlv_init_dpio(struct drm_device
*dev
)
458 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
460 /* Reset the DPIO config */
461 I915_WRITE(DPIO_CTL
, 0);
462 POSTING_READ(DPIO_CTL
);
463 I915_WRITE(DPIO_CTL
, 1);
464 POSTING_READ(DPIO_CTL
);
467 static int intel_dual_link_lvds_callback(const struct dmi_system_id
*id
)
469 DRM_INFO("Forcing lvds to dual link mode on %s\n", id
->ident
);
473 static const struct dmi_system_id intel_dual_link_lvds
[] = {
475 .callback
= intel_dual_link_lvds_callback
,
476 .ident
= "Apple MacBook Pro (Core i5/i7 Series)",
478 DMI_MATCH(DMI_SYS_VENDOR
, "Apple Inc."),
479 DMI_MATCH(DMI_PRODUCT_NAME
, "MacBookPro8,2"),
482 { } /* terminating entry */
485 static bool is_dual_link_lvds(struct drm_i915_private
*dev_priv
,
490 /* use the module option value if specified */
491 if (i915_lvds_channel_mode
> 0)
492 return i915_lvds_channel_mode
== 2;
494 if (dmi_check_system(intel_dual_link_lvds
))
497 if (dev_priv
->lvds_val
)
498 val
= dev_priv
->lvds_val
;
500 /* BIOS should set the proper LVDS register value at boot, but
501 * in reality, it doesn't set the value when the lid is closed;
502 * we need to check "the value to be set" in VBT when LVDS
503 * register is uninitialized.
505 val
= I915_READ(reg
);
506 if (!(val
& ~(LVDS_PIPE_MASK
| LVDS_DETECTED
)))
507 val
= dev_priv
->bios_lvds_val
;
508 dev_priv
->lvds_val
= val
;
510 return (val
& LVDS_CLKB_POWER_MASK
) == LVDS_CLKB_POWER_UP
;
513 static const intel_limit_t
*intel_ironlake_limit(struct drm_crtc
*crtc
,
516 struct drm_device
*dev
= crtc
->dev
;
517 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
518 const intel_limit_t
*limit
;
520 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
521 if (is_dual_link_lvds(dev_priv
, PCH_LVDS
)) {
522 /* LVDS dual channel */
523 if (refclk
== 100000)
524 limit
= &intel_limits_ironlake_dual_lvds_100m
;
526 limit
= &intel_limits_ironlake_dual_lvds
;
528 if (refclk
== 100000)
529 limit
= &intel_limits_ironlake_single_lvds_100m
;
531 limit
= &intel_limits_ironlake_single_lvds
;
533 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
) ||
535 limit
= &intel_limits_ironlake_display_port
;
537 limit
= &intel_limits_ironlake_dac
;
542 static const intel_limit_t
*intel_g4x_limit(struct drm_crtc
*crtc
)
544 struct drm_device
*dev
= crtc
->dev
;
545 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
546 const intel_limit_t
*limit
;
548 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
549 if (is_dual_link_lvds(dev_priv
, LVDS
))
550 /* LVDS with dual channel */
551 limit
= &intel_limits_g4x_dual_channel_lvds
;
553 /* LVDS with dual channel */
554 limit
= &intel_limits_g4x_single_channel_lvds
;
555 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
) ||
556 intel_pipe_has_type(crtc
, INTEL_OUTPUT_ANALOG
)) {
557 limit
= &intel_limits_g4x_hdmi
;
558 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_SDVO
)) {
559 limit
= &intel_limits_g4x_sdvo
;
560 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
)) {
561 limit
= &intel_limits_g4x_display_port
;
562 } else /* The option is for other outputs */
563 limit
= &intel_limits_i9xx_sdvo
;
568 static const intel_limit_t
*intel_limit(struct drm_crtc
*crtc
, int refclk
)
570 struct drm_device
*dev
= crtc
->dev
;
571 const intel_limit_t
*limit
;
573 if (HAS_PCH_SPLIT(dev
))
574 limit
= intel_ironlake_limit(crtc
, refclk
);
575 else if (IS_G4X(dev
)) {
576 limit
= intel_g4x_limit(crtc
);
577 } else if (IS_PINEVIEW(dev
)) {
578 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
579 limit
= &intel_limits_pineview_lvds
;
581 limit
= &intel_limits_pineview_sdvo
;
582 } else if (IS_VALLEYVIEW(dev
)) {
583 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_ANALOG
))
584 limit
= &intel_limits_vlv_dac
;
585 else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
))
586 limit
= &intel_limits_vlv_hdmi
;
588 limit
= &intel_limits_vlv_dp
;
589 } else if (!IS_GEN2(dev
)) {
590 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
591 limit
= &intel_limits_i9xx_lvds
;
593 limit
= &intel_limits_i9xx_sdvo
;
595 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
596 limit
= &intel_limits_i8xx_lvds
;
598 limit
= &intel_limits_i8xx_dvo
;
603 /* m1 is reserved as 0 in Pineview, n is a ring counter */
604 static void pineview_clock(int refclk
, intel_clock_t
*clock
)
606 clock
->m
= clock
->m2
+ 2;
607 clock
->p
= clock
->p1
* clock
->p2
;
608 clock
->vco
= refclk
* clock
->m
/ clock
->n
;
609 clock
->dot
= clock
->vco
/ clock
->p
;
612 static void intel_clock(struct drm_device
*dev
, int refclk
, intel_clock_t
*clock
)
614 if (IS_PINEVIEW(dev
)) {
615 pineview_clock(refclk
, clock
);
618 clock
->m
= 5 * (clock
->m1
+ 2) + (clock
->m2
+ 2);
619 clock
->p
= clock
->p1
* clock
->p2
;
620 clock
->vco
= refclk
* clock
->m
/ (clock
->n
+ 2);
621 clock
->dot
= clock
->vco
/ clock
->p
;
625 * Returns whether any output on the specified pipe is of the specified type
627 bool intel_pipe_has_type(struct drm_crtc
*crtc
, int type
)
629 struct drm_device
*dev
= crtc
->dev
;
630 struct intel_encoder
*encoder
;
632 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
633 if (encoder
->type
== type
)
639 #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0)
641 * Returns whether the given set of divisors are valid for a given refclk with
642 * the given connectors.
645 static bool intel_PLL_is_valid(struct drm_device
*dev
,
646 const intel_limit_t
*limit
,
647 const intel_clock_t
*clock
)
649 if (clock
->p1
< limit
->p1
.min
|| limit
->p1
.max
< clock
->p1
)
650 INTELPllInvalid("p1 out of range\n");
651 if (clock
->p
< limit
->p
.min
|| limit
->p
.max
< clock
->p
)
652 INTELPllInvalid("p out of range\n");
653 if (clock
->m2
< limit
->m2
.min
|| limit
->m2
.max
< clock
->m2
)
654 INTELPllInvalid("m2 out of range\n");
655 if (clock
->m1
< limit
->m1
.min
|| limit
->m1
.max
< clock
->m1
)
656 INTELPllInvalid("m1 out of range\n");
657 if (clock
->m1
<= clock
->m2
&& !IS_PINEVIEW(dev
))
658 INTELPllInvalid("m1 <= m2\n");
659 if (clock
->m
< limit
->m
.min
|| limit
->m
.max
< clock
->m
)
660 INTELPllInvalid("m out of range\n");
661 if (clock
->n
< limit
->n
.min
|| limit
->n
.max
< clock
->n
)
662 INTELPllInvalid("n out of range\n");
663 if (clock
->vco
< limit
->vco
.min
|| limit
->vco
.max
< clock
->vco
)
664 INTELPllInvalid("vco out of range\n");
665 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
666 * connector, etc., rather than just a single range.
668 if (clock
->dot
< limit
->dot
.min
|| limit
->dot
.max
< clock
->dot
)
669 INTELPllInvalid("dot out of range\n");
675 intel_find_best_PLL(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
676 int target
, int refclk
, intel_clock_t
*match_clock
,
677 intel_clock_t
*best_clock
)
680 struct drm_device
*dev
= crtc
->dev
;
681 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
685 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) &&
686 (I915_READ(LVDS
)) != 0) {
688 * For LVDS, if the panel is on, just rely on its current
689 * settings for dual-channel. We haven't figured out how to
690 * reliably set up different single/dual channel state, if we
693 if (is_dual_link_lvds(dev_priv
, LVDS
))
694 clock
.p2
= limit
->p2
.p2_fast
;
696 clock
.p2
= limit
->p2
.p2_slow
;
698 if (target
< limit
->p2
.dot_limit
)
699 clock
.p2
= limit
->p2
.p2_slow
;
701 clock
.p2
= limit
->p2
.p2_fast
;
704 memset(best_clock
, 0, sizeof(*best_clock
));
706 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
;
708 for (clock
.m2
= limit
->m2
.min
;
709 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
710 /* m1 is always 0 in Pineview */
711 if (clock
.m2
>= clock
.m1
&& !IS_PINEVIEW(dev
))
713 for (clock
.n
= limit
->n
.min
;
714 clock
.n
<= limit
->n
.max
; clock
.n
++) {
715 for (clock
.p1
= limit
->p1
.min
;
716 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
719 intel_clock(dev
, refclk
, &clock
);
720 if (!intel_PLL_is_valid(dev
, limit
,
724 clock
.p
!= match_clock
->p
)
727 this_err
= abs(clock
.dot
- target
);
728 if (this_err
< err
) {
737 return (err
!= target
);
741 intel_g4x_find_best_PLL(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
742 int target
, int refclk
, intel_clock_t
*match_clock
,
743 intel_clock_t
*best_clock
)
745 struct drm_device
*dev
= crtc
->dev
;
746 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
750 /* approximately equals target * 0.00585 */
751 int err_most
= (target
>> 8) + (target
>> 9);
754 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
757 if (HAS_PCH_SPLIT(dev
))
761 if ((I915_READ(lvds_reg
) & LVDS_CLKB_POWER_MASK
) ==
763 clock
.p2
= limit
->p2
.p2_fast
;
765 clock
.p2
= limit
->p2
.p2_slow
;
767 if (target
< limit
->p2
.dot_limit
)
768 clock
.p2
= limit
->p2
.p2_slow
;
770 clock
.p2
= limit
->p2
.p2_fast
;
773 memset(best_clock
, 0, sizeof(*best_clock
));
774 max_n
= limit
->n
.max
;
775 /* based on hardware requirement, prefer smaller n to precision */
776 for (clock
.n
= limit
->n
.min
; clock
.n
<= max_n
; clock
.n
++) {
777 /* based on hardware requirement, prefere larger m1,m2 */
778 for (clock
.m1
= limit
->m1
.max
;
779 clock
.m1
>= limit
->m1
.min
; clock
.m1
--) {
780 for (clock
.m2
= limit
->m2
.max
;
781 clock
.m2
>= limit
->m2
.min
; clock
.m2
--) {
782 for (clock
.p1
= limit
->p1
.max
;
783 clock
.p1
>= limit
->p1
.min
; clock
.p1
--) {
786 intel_clock(dev
, refclk
, &clock
);
787 if (!intel_PLL_is_valid(dev
, limit
,
791 clock
.p
!= match_clock
->p
)
794 this_err
= abs(clock
.dot
- target
);
795 if (this_err
< err_most
) {
809 intel_find_pll_ironlake_dp(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
810 int target
, int refclk
, intel_clock_t
*match_clock
,
811 intel_clock_t
*best_clock
)
813 struct drm_device
*dev
= crtc
->dev
;
816 if (target
< 200000) {
829 intel_clock(dev
, refclk
, &clock
);
830 memcpy(best_clock
, &clock
, sizeof(intel_clock_t
));
834 /* DisplayPort has only two frequencies, 162MHz and 270MHz */
836 intel_find_pll_g4x_dp(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
837 int target
, int refclk
, intel_clock_t
*match_clock
,
838 intel_clock_t
*best_clock
)
841 if (target
< 200000) {
854 clock
.m
= 5 * (clock
.m1
+ 2) + (clock
.m2
+ 2);
855 clock
.p
= (clock
.p1
* clock
.p2
);
856 clock
.dot
= 96000 * clock
.m
/ (clock
.n
+ 2) / clock
.p
;
858 memcpy(best_clock
, &clock
, sizeof(intel_clock_t
));
862 intel_vlv_find_best_pll(const intel_limit_t
*limit
, struct drm_crtc
*crtc
,
863 int target
, int refclk
, intel_clock_t
*match_clock
,
864 intel_clock_t
*best_clock
)
866 u32 p1
, p2
, m1
, m2
, vco
, bestn
, bestm1
, bestm2
, bestp1
, bestp2
;
868 u32 updrate
, minupdate
, fracbits
, p
;
869 unsigned long bestppm
, ppm
, absppm
;
873 dotclk
= target
* 1000;
876 fastclk
= dotclk
/ (2*100);
880 n
= p
= p1
= p2
= m
= m1
= m2
= vco
= bestn
= 0;
881 bestm1
= bestm2
= bestp1
= bestp2
= 0;
883 /* based on hardware requirement, prefer smaller n to precision */
884 for (n
= limit
->n
.min
; n
<= ((refclk
) / minupdate
); n
++) {
885 updrate
= refclk
/ n
;
886 for (p1
= limit
->p1
.max
; p1
> limit
->p1
.min
; p1
--) {
887 for (p2
= limit
->p2
.p2_fast
+1; p2
> 0; p2
--) {
891 /* based on hardware requirement, prefer bigger m1,m2 values */
892 for (m1
= limit
->m1
.min
; m1
<= limit
->m1
.max
; m1
++) {
893 m2
= (((2*(fastclk
* p
* n
/ m1
)) +
894 refclk
) / (2*refclk
));
897 if (vco
>= limit
->vco
.min
&& vco
< limit
->vco
.max
) {
898 ppm
= 1000000 * ((vco
/ p
) - fastclk
) / fastclk
;
899 absppm
= (ppm
> 0) ? ppm
: (-ppm
);
900 if (absppm
< 100 && ((p1
* p2
) > (bestp1
* bestp2
))) {
904 if (absppm
< bestppm
- 10) {
921 best_clock
->n
= bestn
;
922 best_clock
->m1
= bestm1
;
923 best_clock
->m2
= bestm2
;
924 best_clock
->p1
= bestp1
;
925 best_clock
->p2
= bestp2
;
930 static void ironlake_wait_for_vblank(struct drm_device
*dev
, int pipe
)
932 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
933 u32 frame
, frame_reg
= PIPEFRAME(pipe
);
935 frame
= I915_READ(frame_reg
);
937 if (wait_for(I915_READ_NOTRACE(frame_reg
) != frame
, 50))
938 DRM_DEBUG_KMS("vblank wait timed out\n");
942 * intel_wait_for_vblank - wait for vblank on a given pipe
944 * @pipe: pipe to wait for
946 * Wait for vblank to occur on a given pipe. Needed for various bits of
949 void intel_wait_for_vblank(struct drm_device
*dev
, int pipe
)
951 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
952 int pipestat_reg
= PIPESTAT(pipe
);
954 if (INTEL_INFO(dev
)->gen
>= 5) {
955 ironlake_wait_for_vblank(dev
, pipe
);
959 /* Clear existing vblank status. Note this will clear any other
960 * sticky status fields as well.
962 * This races with i915_driver_irq_handler() with the result
963 * that either function could miss a vblank event. Here it is not
964 * fatal, as we will either wait upon the next vblank interrupt or
965 * timeout. Generally speaking intel_wait_for_vblank() is only
966 * called during modeset at which time the GPU should be idle and
967 * should *not* be performing page flips and thus not waiting on
969 * Currently, the result of us stealing a vblank from the irq
970 * handler is that a single frame will be skipped during swapbuffers.
972 I915_WRITE(pipestat_reg
,
973 I915_READ(pipestat_reg
) | PIPE_VBLANK_INTERRUPT_STATUS
);
975 /* Wait for vblank interrupt bit to set */
976 if (wait_for(I915_READ(pipestat_reg
) &
977 PIPE_VBLANK_INTERRUPT_STATUS
,
979 DRM_DEBUG_KMS("vblank wait timed out\n");
983 * intel_wait_for_pipe_off - wait for pipe to turn off
985 * @pipe: pipe to wait for
987 * After disabling a pipe, we can't wait for vblank in the usual way,
988 * spinning on the vblank interrupt status bit, since we won't actually
989 * see an interrupt when the pipe is disabled.
992 * wait for the pipe register state bit to turn off
995 * wait for the display line value to settle (it usually
996 * ends up stopping at the start of the next frame).
999 void intel_wait_for_pipe_off(struct drm_device
*dev
, int pipe
)
1001 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1003 if (INTEL_INFO(dev
)->gen
>= 4) {
1004 int reg
= PIPECONF(pipe
);
1006 /* Wait for the Pipe State to go off */
1007 if (wait_for((I915_READ(reg
) & I965_PIPECONF_ACTIVE
) == 0,
1009 WARN(1, "pipe_off wait timed out\n");
1011 u32 last_line
, line_mask
;
1012 int reg
= PIPEDSL(pipe
);
1013 unsigned long timeout
= jiffies
+ msecs_to_jiffies(100);
1016 line_mask
= DSL_LINEMASK_GEN2
;
1018 line_mask
= DSL_LINEMASK_GEN3
;
1020 /* Wait for the display line to settle */
1022 last_line
= I915_READ(reg
) & line_mask
;
1024 } while (((I915_READ(reg
) & line_mask
) != last_line
) &&
1025 time_after(timeout
, jiffies
));
1026 if (time_after(jiffies
, timeout
))
1027 WARN(1, "pipe_off wait timed out\n");
1031 static const char *state_string(bool enabled
)
1033 return enabled
? "on" : "off";
1036 /* Only for pre-ILK configs */
1037 static void assert_pll(struct drm_i915_private
*dev_priv
,
1038 enum pipe pipe
, bool state
)
1045 val
= I915_READ(reg
);
1046 cur_state
= !!(val
& DPLL_VCO_ENABLE
);
1047 WARN(cur_state
!= state
,
1048 "PLL state assertion failure (expected %s, current %s)\n",
1049 state_string(state
), state_string(cur_state
));
1051 #define assert_pll_enabled(d, p) assert_pll(d, p, true)
1052 #define assert_pll_disabled(d, p) assert_pll(d, p, false)
1055 static void assert_pch_pll(struct drm_i915_private
*dev_priv
,
1056 struct intel_pch_pll
*pll
,
1057 struct intel_crtc
*crtc
,
1063 if (HAS_PCH_LPT(dev_priv
->dev
)) {
1064 DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n");
1069 "asserting PCH PLL %s with no PLL\n", state_string(state
)))
1072 val
= I915_READ(pll
->pll_reg
);
1073 cur_state
= !!(val
& DPLL_VCO_ENABLE
);
1074 WARN(cur_state
!= state
,
1075 "PCH PLL state for reg %x assertion failure (expected %s, current %s), val=%08x\n",
1076 pll
->pll_reg
, state_string(state
), state_string(cur_state
), val
);
1078 /* Make sure the selected PLL is correctly attached to the transcoder */
1079 if (crtc
&& HAS_PCH_CPT(dev_priv
->dev
)) {
1082 pch_dpll
= I915_READ(PCH_DPLL_SEL
);
1083 cur_state
= pll
->pll_reg
== _PCH_DPLL_B
;
1084 if (!WARN(((pch_dpll
>> (4 * crtc
->pipe
)) & 1) != cur_state
,
1085 "PLL[%d] not attached to this transcoder %d: %08x\n",
1086 cur_state
, crtc
->pipe
, pch_dpll
)) {
1087 cur_state
= !!(val
>> (4*crtc
->pipe
+ 3));
1088 WARN(cur_state
!= state
,
1089 "PLL[%d] not %s on this transcoder %d: %08x\n",
1090 pll
->pll_reg
== _PCH_DPLL_B
,
1091 state_string(state
),
1097 #define assert_pch_pll_enabled(d, p, c) assert_pch_pll(d, p, c, true)
1098 #define assert_pch_pll_disabled(d, p, c) assert_pch_pll(d, p, c, false)
1100 static void assert_fdi_tx(struct drm_i915_private
*dev_priv
,
1101 enum pipe pipe
, bool state
)
1107 if (IS_HASWELL(dev_priv
->dev
)) {
1108 /* On Haswell, DDI is used instead of FDI_TX_CTL */
1109 reg
= DDI_FUNC_CTL(pipe
);
1110 val
= I915_READ(reg
);
1111 cur_state
= !!(val
& PIPE_DDI_FUNC_ENABLE
);
1113 reg
= FDI_TX_CTL(pipe
);
1114 val
= I915_READ(reg
);
1115 cur_state
= !!(val
& FDI_TX_ENABLE
);
1117 WARN(cur_state
!= state
,
1118 "FDI TX state assertion failure (expected %s, current %s)\n",
1119 state_string(state
), state_string(cur_state
));
1121 #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
1122 #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
1124 static void assert_fdi_rx(struct drm_i915_private
*dev_priv
,
1125 enum pipe pipe
, bool state
)
1131 if (IS_HASWELL(dev_priv
->dev
) && pipe
> 0) {
1132 DRM_ERROR("Attempting to enable FDI_RX on Haswell pipe > 0\n");
1135 reg
= FDI_RX_CTL(pipe
);
1136 val
= I915_READ(reg
);
1137 cur_state
= !!(val
& FDI_RX_ENABLE
);
1139 WARN(cur_state
!= state
,
1140 "FDI RX state assertion failure (expected %s, current %s)\n",
1141 state_string(state
), state_string(cur_state
));
1143 #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
1144 #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
1146 static void assert_fdi_tx_pll_enabled(struct drm_i915_private
*dev_priv
,
1152 /* ILK FDI PLL is always enabled */
1153 if (dev_priv
->info
->gen
== 5)
1156 /* On Haswell, DDI ports are responsible for the FDI PLL setup */
1157 if (IS_HASWELL(dev_priv
->dev
))
1160 reg
= FDI_TX_CTL(pipe
);
1161 val
= I915_READ(reg
);
1162 WARN(!(val
& FDI_TX_PLL_ENABLE
), "FDI TX PLL assertion failure, should be active but is disabled\n");
1165 static void assert_fdi_rx_pll_enabled(struct drm_i915_private
*dev_priv
,
1171 if (IS_HASWELL(dev_priv
->dev
) && pipe
> 0) {
1172 DRM_ERROR("Attempting to enable FDI on Haswell with pipe > 0\n");
1175 reg
= FDI_RX_CTL(pipe
);
1176 val
= I915_READ(reg
);
1177 WARN(!(val
& FDI_RX_PLL_ENABLE
), "FDI RX PLL assertion failure, should be active but is disabled\n");
1180 static void assert_panel_unlocked(struct drm_i915_private
*dev_priv
,
1183 int pp_reg
, lvds_reg
;
1185 enum pipe panel_pipe
= PIPE_A
;
1188 if (HAS_PCH_SPLIT(dev_priv
->dev
)) {
1189 pp_reg
= PCH_PP_CONTROL
;
1190 lvds_reg
= PCH_LVDS
;
1192 pp_reg
= PP_CONTROL
;
1196 val
= I915_READ(pp_reg
);
1197 if (!(val
& PANEL_POWER_ON
) ||
1198 ((val
& PANEL_UNLOCK_REGS
) == PANEL_UNLOCK_REGS
))
1201 if (I915_READ(lvds_reg
) & LVDS_PIPEB_SELECT
)
1202 panel_pipe
= PIPE_B
;
1204 WARN(panel_pipe
== pipe
&& locked
,
1205 "panel assertion failure, pipe %c regs locked\n",
1209 void assert_pipe(struct drm_i915_private
*dev_priv
,
1210 enum pipe pipe
, bool state
)
1216 /* if we need the pipe A quirk it must be always on */
1217 if (pipe
== PIPE_A
&& dev_priv
->quirks
& QUIRK_PIPEA_FORCE
)
1220 reg
= PIPECONF(pipe
);
1221 val
= I915_READ(reg
);
1222 cur_state
= !!(val
& PIPECONF_ENABLE
);
1223 WARN(cur_state
!= state
,
1224 "pipe %c assertion failure (expected %s, current %s)\n",
1225 pipe_name(pipe
), state_string(state
), state_string(cur_state
));
1228 static void assert_plane(struct drm_i915_private
*dev_priv
,
1229 enum plane plane
, bool state
)
1235 reg
= DSPCNTR(plane
);
1236 val
= I915_READ(reg
);
1237 cur_state
= !!(val
& DISPLAY_PLANE_ENABLE
);
1238 WARN(cur_state
!= state
,
1239 "plane %c assertion failure (expected %s, current %s)\n",
1240 plane_name(plane
), state_string(state
), state_string(cur_state
));
1243 #define assert_plane_enabled(d, p) assert_plane(d, p, true)
1244 #define assert_plane_disabled(d, p) assert_plane(d, p, false)
1246 static void assert_planes_disabled(struct drm_i915_private
*dev_priv
,
1253 /* Planes are fixed to pipes on ILK+ */
1254 if (HAS_PCH_SPLIT(dev_priv
->dev
)) {
1255 reg
= DSPCNTR(pipe
);
1256 val
= I915_READ(reg
);
1257 WARN((val
& DISPLAY_PLANE_ENABLE
),
1258 "plane %c assertion failure, should be disabled but not\n",
1263 /* Need to check both planes against the pipe */
1264 for (i
= 0; i
< 2; i
++) {
1266 val
= I915_READ(reg
);
1267 cur_pipe
= (val
& DISPPLANE_SEL_PIPE_MASK
) >>
1268 DISPPLANE_SEL_PIPE_SHIFT
;
1269 WARN((val
& DISPLAY_PLANE_ENABLE
) && pipe
== cur_pipe
,
1270 "plane %c assertion failure, should be off on pipe %c but is still active\n",
1271 plane_name(i
), pipe_name(pipe
));
1275 static void assert_pch_refclk_enabled(struct drm_i915_private
*dev_priv
)
1280 if (HAS_PCH_LPT(dev_priv
->dev
)) {
1281 DRM_DEBUG_DRIVER("LPT does not has PCH refclk, skipping check\n");
1285 val
= I915_READ(PCH_DREF_CONTROL
);
1286 enabled
= !!(val
& (DREF_SSC_SOURCE_MASK
| DREF_NONSPREAD_SOURCE_MASK
|
1287 DREF_SUPERSPREAD_SOURCE_MASK
));
1288 WARN(!enabled
, "PCH refclk assertion failure, should be active but is disabled\n");
1291 static void assert_transcoder_disabled(struct drm_i915_private
*dev_priv
,
1298 reg
= TRANSCONF(pipe
);
1299 val
= I915_READ(reg
);
1300 enabled
= !!(val
& TRANS_ENABLE
);
1302 "transcoder assertion failed, should be off on pipe %c but is still active\n",
1306 static bool dp_pipe_enabled(struct drm_i915_private
*dev_priv
,
1307 enum pipe pipe
, u32 port_sel
, u32 val
)
1309 if ((val
& DP_PORT_EN
) == 0)
1312 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1313 u32 trans_dp_ctl_reg
= TRANS_DP_CTL(pipe
);
1314 u32 trans_dp_ctl
= I915_READ(trans_dp_ctl_reg
);
1315 if ((trans_dp_ctl
& TRANS_DP_PORT_SEL_MASK
) != port_sel
)
1318 if ((val
& DP_PIPE_MASK
) != (pipe
<< 30))
1324 static bool hdmi_pipe_enabled(struct drm_i915_private
*dev_priv
,
1325 enum pipe pipe
, u32 val
)
1327 if ((val
& PORT_ENABLE
) == 0)
1330 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1331 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1334 if ((val
& TRANSCODER_MASK
) != TRANSCODER(pipe
))
1340 static bool lvds_pipe_enabled(struct drm_i915_private
*dev_priv
,
1341 enum pipe pipe
, u32 val
)
1343 if ((val
& LVDS_PORT_EN
) == 0)
1346 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1347 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1350 if ((val
& LVDS_PIPE_MASK
) != LVDS_PIPE(pipe
))
1356 static bool adpa_pipe_enabled(struct drm_i915_private
*dev_priv
,
1357 enum pipe pipe
, u32 val
)
1359 if ((val
& ADPA_DAC_ENABLE
) == 0)
1361 if (HAS_PCH_CPT(dev_priv
->dev
)) {
1362 if ((val
& PORT_TRANS_SEL_MASK
) != PORT_TRANS_SEL_CPT(pipe
))
1365 if ((val
& ADPA_PIPE_SELECT_MASK
) != ADPA_PIPE_SELECT(pipe
))
1371 static void assert_pch_dp_disabled(struct drm_i915_private
*dev_priv
,
1372 enum pipe pipe
, int reg
, u32 port_sel
)
1374 u32 val
= I915_READ(reg
);
1375 WARN(dp_pipe_enabled(dev_priv
, pipe
, port_sel
, val
),
1376 "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
1377 reg
, pipe_name(pipe
));
1379 WARN(HAS_PCH_IBX(dev_priv
->dev
) && (val
& DP_PORT_EN
) == 0
1380 && (val
& DP_PIPEB_SELECT
),
1381 "IBX PCH dp port still using transcoder B\n");
1384 static void assert_pch_hdmi_disabled(struct drm_i915_private
*dev_priv
,
1385 enum pipe pipe
, int reg
)
1387 u32 val
= I915_READ(reg
);
1388 WARN(hdmi_pipe_enabled(dev_priv
, pipe
, val
),
1389 "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
1390 reg
, pipe_name(pipe
));
1392 WARN(HAS_PCH_IBX(dev_priv
->dev
) && (val
& PORT_ENABLE
) == 0
1393 && (val
& SDVO_PIPE_B_SELECT
),
1394 "IBX PCH hdmi port still using transcoder B\n");
1397 static void assert_pch_ports_disabled(struct drm_i915_private
*dev_priv
,
1403 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_B
, TRANS_DP_PORT_SEL_B
);
1404 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_C
, TRANS_DP_PORT_SEL_C
);
1405 assert_pch_dp_disabled(dev_priv
, pipe
, PCH_DP_D
, TRANS_DP_PORT_SEL_D
);
1408 val
= I915_READ(reg
);
1409 WARN(adpa_pipe_enabled(dev_priv
, pipe
, val
),
1410 "PCH VGA enabled on transcoder %c, should be disabled\n",
1414 val
= I915_READ(reg
);
1415 WARN(lvds_pipe_enabled(dev_priv
, pipe
, val
),
1416 "PCH LVDS enabled on transcoder %c, should be disabled\n",
1419 assert_pch_hdmi_disabled(dev_priv
, pipe
, HDMIB
);
1420 assert_pch_hdmi_disabled(dev_priv
, pipe
, HDMIC
);
1421 assert_pch_hdmi_disabled(dev_priv
, pipe
, HDMID
);
1425 * intel_enable_pll - enable a PLL
1426 * @dev_priv: i915 private structure
1427 * @pipe: pipe PLL to enable
1429 * Enable @pipe's PLL so we can start pumping pixels from a plane. Check to
1430 * make sure the PLL reg is writable first though, since the panel write
1431 * protect mechanism may be enabled.
1433 * Note! This is for pre-ILK only.
1435 * Unfortunately needed by dvo_ns2501 since the dvo depends on it running.
1437 static void intel_enable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1442 /* No really, not for ILK+ */
1443 BUG_ON(!IS_VALLEYVIEW(dev_priv
->dev
) && dev_priv
->info
->gen
>= 5);
1445 /* PLL is protected by panel, make sure we can write it */
1446 if (IS_MOBILE(dev_priv
->dev
) && !IS_I830(dev_priv
->dev
))
1447 assert_panel_unlocked(dev_priv
, pipe
);
1450 val
= I915_READ(reg
);
1451 val
|= DPLL_VCO_ENABLE
;
1453 /* We do this three times for luck */
1454 I915_WRITE(reg
, val
);
1456 udelay(150); /* wait for warmup */
1457 I915_WRITE(reg
, val
);
1459 udelay(150); /* wait for warmup */
1460 I915_WRITE(reg
, val
);
1462 udelay(150); /* wait for warmup */
1466 * intel_disable_pll - disable a PLL
1467 * @dev_priv: i915 private structure
1468 * @pipe: pipe PLL to disable
1470 * Disable the PLL for @pipe, making sure the pipe is off first.
1472 * Note! This is for pre-ILK only.
1474 static void intel_disable_pll(struct drm_i915_private
*dev_priv
, enum pipe pipe
)
1479 /* Don't disable pipe A or pipe A PLLs if needed */
1480 if (pipe
== PIPE_A
&& (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
))
1483 /* Make sure the pipe isn't still relying on us */
1484 assert_pipe_disabled(dev_priv
, pipe
);
1487 val
= I915_READ(reg
);
1488 val
&= ~DPLL_VCO_ENABLE
;
1489 I915_WRITE(reg
, val
);
1495 intel_sbi_write(struct drm_i915_private
*dev_priv
, u16 reg
, u32 value
)
1497 unsigned long flags
;
1499 spin_lock_irqsave(&dev_priv
->dpio_lock
, flags
);
1500 if (wait_for((I915_READ(SBI_CTL_STAT
) & SBI_BUSY
) == 0,
1502 DRM_ERROR("timeout waiting for SBI to become ready\n");
1506 I915_WRITE(SBI_ADDR
,
1508 I915_WRITE(SBI_DATA
,
1510 I915_WRITE(SBI_CTL_STAT
,
1514 if (wait_for((I915_READ(SBI_CTL_STAT
) & (SBI_BUSY
| SBI_RESPONSE_FAIL
)) == 0,
1516 DRM_ERROR("timeout waiting for SBI to complete write transaction\n");
1521 spin_unlock_irqrestore(&dev_priv
->dpio_lock
, flags
);
1525 intel_sbi_read(struct drm_i915_private
*dev_priv
, u16 reg
)
1527 unsigned long flags
;
1530 spin_lock_irqsave(&dev_priv
->dpio_lock
, flags
);
1531 if (wait_for((I915_READ(SBI_CTL_STAT
) & SBI_BUSY
) == 0,
1533 DRM_ERROR("timeout waiting for SBI to become ready\n");
1537 I915_WRITE(SBI_ADDR
,
1539 I915_WRITE(SBI_CTL_STAT
,
1543 if (wait_for((I915_READ(SBI_CTL_STAT
) & (SBI_BUSY
| SBI_RESPONSE_FAIL
)) == 0,
1545 DRM_ERROR("timeout waiting for SBI to complete read transaction\n");
1549 value
= I915_READ(SBI_DATA
);
1552 spin_unlock_irqrestore(&dev_priv
->dpio_lock
, flags
);
1557 * intel_enable_pch_pll - enable PCH PLL
1558 * @dev_priv: i915 private structure
1559 * @pipe: pipe PLL to enable
1561 * The PCH PLL needs to be enabled before the PCH transcoder, since it
1562 * drives the transcoder clock.
1564 static void intel_enable_pch_pll(struct intel_crtc
*intel_crtc
)
1566 struct drm_i915_private
*dev_priv
= intel_crtc
->base
.dev
->dev_private
;
1567 struct intel_pch_pll
*pll
;
1571 /* PCH PLLs only available on ILK, SNB and IVB */
1572 BUG_ON(dev_priv
->info
->gen
< 5);
1573 pll
= intel_crtc
->pch_pll
;
1577 if (WARN_ON(pll
->refcount
== 0))
1580 DRM_DEBUG_KMS("enable PCH PLL %x (active %d, on? %d)for crtc %d\n",
1581 pll
->pll_reg
, pll
->active
, pll
->on
,
1582 intel_crtc
->base
.base
.id
);
1584 /* PCH refclock must be enabled first */
1585 assert_pch_refclk_enabled(dev_priv
);
1587 if (pll
->active
++ && pll
->on
) {
1588 assert_pch_pll_enabled(dev_priv
, pll
, NULL
);
1592 DRM_DEBUG_KMS("enabling PCH PLL %x\n", pll
->pll_reg
);
1595 val
= I915_READ(reg
);
1596 val
|= DPLL_VCO_ENABLE
;
1597 I915_WRITE(reg
, val
);
1604 static void intel_disable_pch_pll(struct intel_crtc
*intel_crtc
)
1606 struct drm_i915_private
*dev_priv
= intel_crtc
->base
.dev
->dev_private
;
1607 struct intel_pch_pll
*pll
= intel_crtc
->pch_pll
;
1611 /* PCH only available on ILK+ */
1612 BUG_ON(dev_priv
->info
->gen
< 5);
1616 if (WARN_ON(pll
->refcount
== 0))
1619 DRM_DEBUG_KMS("disable PCH PLL %x (active %d, on? %d) for crtc %d\n",
1620 pll
->pll_reg
, pll
->active
, pll
->on
,
1621 intel_crtc
->base
.base
.id
);
1623 if (WARN_ON(pll
->active
== 0)) {
1624 assert_pch_pll_disabled(dev_priv
, pll
, NULL
);
1628 if (--pll
->active
) {
1629 assert_pch_pll_enabled(dev_priv
, pll
, NULL
);
1633 DRM_DEBUG_KMS("disabling PCH PLL %x\n", pll
->pll_reg
);
1635 /* Make sure transcoder isn't still depending on us */
1636 assert_transcoder_disabled(dev_priv
, intel_crtc
->pipe
);
1639 val
= I915_READ(reg
);
1640 val
&= ~DPLL_VCO_ENABLE
;
1641 I915_WRITE(reg
, val
);
1648 static void intel_enable_transcoder(struct drm_i915_private
*dev_priv
,
1652 u32 val
, pipeconf_val
;
1653 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
1655 /* PCH only available on ILK+ */
1656 BUG_ON(dev_priv
->info
->gen
< 5);
1658 /* Make sure PCH DPLL is enabled */
1659 assert_pch_pll_enabled(dev_priv
,
1660 to_intel_crtc(crtc
)->pch_pll
,
1661 to_intel_crtc(crtc
));
1663 /* FDI must be feeding us bits for PCH ports */
1664 assert_fdi_tx_enabled(dev_priv
, pipe
);
1665 assert_fdi_rx_enabled(dev_priv
, pipe
);
1667 if (IS_HASWELL(dev_priv
->dev
) && pipe
> 0) {
1668 DRM_ERROR("Attempting to enable transcoder on Haswell with pipe > 0\n");
1671 reg
= TRANSCONF(pipe
);
1672 val
= I915_READ(reg
);
1673 pipeconf_val
= I915_READ(PIPECONF(pipe
));
1675 if (HAS_PCH_IBX(dev_priv
->dev
)) {
1677 * make the BPC in transcoder be consistent with
1678 * that in pipeconf reg.
1680 val
&= ~PIPE_BPC_MASK
;
1681 val
|= pipeconf_val
& PIPE_BPC_MASK
;
1684 val
&= ~TRANS_INTERLACE_MASK
;
1685 if ((pipeconf_val
& PIPECONF_INTERLACE_MASK
) == PIPECONF_INTERLACED_ILK
)
1686 if (HAS_PCH_IBX(dev_priv
->dev
) &&
1687 intel_pipe_has_type(crtc
, INTEL_OUTPUT_SDVO
))
1688 val
|= TRANS_LEGACY_INTERLACED_ILK
;
1690 val
|= TRANS_INTERLACED
;
1692 val
|= TRANS_PROGRESSIVE
;
1694 I915_WRITE(reg
, val
| TRANS_ENABLE
);
1695 if (wait_for(I915_READ(reg
) & TRANS_STATE_ENABLE
, 100))
1696 DRM_ERROR("failed to enable transcoder %d\n", pipe
);
1699 static void intel_disable_transcoder(struct drm_i915_private
*dev_priv
,
1705 /* FDI relies on the transcoder */
1706 assert_fdi_tx_disabled(dev_priv
, pipe
);
1707 assert_fdi_rx_disabled(dev_priv
, pipe
);
1709 /* Ports must be off as well */
1710 assert_pch_ports_disabled(dev_priv
, pipe
);
1712 reg
= TRANSCONF(pipe
);
1713 val
= I915_READ(reg
);
1714 val
&= ~TRANS_ENABLE
;
1715 I915_WRITE(reg
, val
);
1716 /* wait for PCH transcoder off, transcoder state */
1717 if (wait_for((I915_READ(reg
) & TRANS_STATE_ENABLE
) == 0, 50))
1718 DRM_ERROR("failed to disable transcoder %d\n", pipe
);
1722 * intel_enable_pipe - enable a pipe, asserting requirements
1723 * @dev_priv: i915 private structure
1724 * @pipe: pipe to enable
1725 * @pch_port: on ILK+, is this pipe driving a PCH port or not
1727 * Enable @pipe, making sure that various hardware specific requirements
1728 * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
1730 * @pipe should be %PIPE_A or %PIPE_B.
1732 * Will wait until the pipe is actually running (i.e. first vblank) before
1735 static void intel_enable_pipe(struct drm_i915_private
*dev_priv
, enum pipe pipe
,
1742 * A pipe without a PLL won't actually be able to drive bits from
1743 * a plane. On ILK+ the pipe PLLs are integrated, so we don't
1746 if (!HAS_PCH_SPLIT(dev_priv
->dev
))
1747 assert_pll_enabled(dev_priv
, pipe
);
1750 /* if driving the PCH, we need FDI enabled */
1751 assert_fdi_rx_pll_enabled(dev_priv
, pipe
);
1752 assert_fdi_tx_pll_enabled(dev_priv
, pipe
);
1754 /* FIXME: assert CPU port conditions for SNB+ */
1757 reg
= PIPECONF(pipe
);
1758 val
= I915_READ(reg
);
1759 if (val
& PIPECONF_ENABLE
)
1762 I915_WRITE(reg
, val
| PIPECONF_ENABLE
);
1763 intel_wait_for_vblank(dev_priv
->dev
, pipe
);
1767 * intel_disable_pipe - disable a pipe, asserting requirements
1768 * @dev_priv: i915 private structure
1769 * @pipe: pipe to disable
1771 * Disable @pipe, making sure that various hardware specific requirements
1772 * are met, if applicable, e.g. plane disabled, panel fitter off, etc.
1774 * @pipe should be %PIPE_A or %PIPE_B.
1776 * Will wait until the pipe has shut down before returning.
1778 static void intel_disable_pipe(struct drm_i915_private
*dev_priv
,
1785 * Make sure planes won't keep trying to pump pixels to us,
1786 * or we might hang the display.
1788 assert_planes_disabled(dev_priv
, pipe
);
1790 /* Don't disable pipe A or pipe A PLLs if needed */
1791 if (pipe
== PIPE_A
&& (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
))
1794 reg
= PIPECONF(pipe
);
1795 val
= I915_READ(reg
);
1796 if ((val
& PIPECONF_ENABLE
) == 0)
1799 I915_WRITE(reg
, val
& ~PIPECONF_ENABLE
);
1800 intel_wait_for_pipe_off(dev_priv
->dev
, pipe
);
1804 * Plane regs are double buffered, going from enabled->disabled needs a
1805 * trigger in order to latch. The display address reg provides this.
1807 void intel_flush_display_plane(struct drm_i915_private
*dev_priv
,
1810 I915_WRITE(DSPADDR(plane
), I915_READ(DSPADDR(plane
)));
1811 I915_WRITE(DSPSURF(plane
), I915_READ(DSPSURF(plane
)));
1815 * intel_enable_plane - enable a display plane on a given pipe
1816 * @dev_priv: i915 private structure
1817 * @plane: plane to enable
1818 * @pipe: pipe being fed
1820 * Enable @plane on @pipe, making sure that @pipe is running first.
1822 static void intel_enable_plane(struct drm_i915_private
*dev_priv
,
1823 enum plane plane
, enum pipe pipe
)
1828 /* If the pipe isn't enabled, we can't pump pixels and may hang */
1829 assert_pipe_enabled(dev_priv
, pipe
);
1831 reg
= DSPCNTR(plane
);
1832 val
= I915_READ(reg
);
1833 if (val
& DISPLAY_PLANE_ENABLE
)
1836 I915_WRITE(reg
, val
| DISPLAY_PLANE_ENABLE
);
1837 intel_flush_display_plane(dev_priv
, plane
);
1838 intel_wait_for_vblank(dev_priv
->dev
, pipe
);
1842 * intel_disable_plane - disable a display plane
1843 * @dev_priv: i915 private structure
1844 * @plane: plane to disable
1845 * @pipe: pipe consuming the data
1847 * Disable @plane; should be an independent operation.
1849 static void intel_disable_plane(struct drm_i915_private
*dev_priv
,
1850 enum plane plane
, enum pipe pipe
)
1855 reg
= DSPCNTR(plane
);
1856 val
= I915_READ(reg
);
1857 if ((val
& DISPLAY_PLANE_ENABLE
) == 0)
1860 I915_WRITE(reg
, val
& ~DISPLAY_PLANE_ENABLE
);
1861 intel_flush_display_plane(dev_priv
, plane
);
1862 intel_wait_for_vblank(dev_priv
->dev
, pipe
);
1866 intel_pin_and_fence_fb_obj(struct drm_device
*dev
,
1867 struct drm_i915_gem_object
*obj
,
1868 struct intel_ring_buffer
*pipelined
)
1870 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1874 switch (obj
->tiling_mode
) {
1875 case I915_TILING_NONE
:
1876 if (IS_BROADWATER(dev
) || IS_CRESTLINE(dev
))
1877 alignment
= 128 * 1024;
1878 else if (INTEL_INFO(dev
)->gen
>= 4)
1879 alignment
= 4 * 1024;
1881 alignment
= 64 * 1024;
1884 /* pin() will align the object as required by fence */
1888 /* FIXME: Is this true? */
1889 DRM_ERROR("Y tiled not allowed for scan out buffers\n");
1895 dev_priv
->mm
.interruptible
= false;
1896 ret
= i915_gem_object_pin_to_display_plane(obj
, alignment
, pipelined
);
1898 goto err_interruptible
;
1900 /* Install a fence for tiled scan-out. Pre-i965 always needs a
1901 * fence, whereas 965+ only requires a fence if using
1902 * framebuffer compression. For simplicity, we always install
1903 * a fence as the cost is not that onerous.
1905 ret
= i915_gem_object_get_fence(obj
);
1909 i915_gem_object_pin_fence(obj
);
1911 dev_priv
->mm
.interruptible
= true;
1915 i915_gem_object_unpin(obj
);
1917 dev_priv
->mm
.interruptible
= true;
1921 void intel_unpin_fb_obj(struct drm_i915_gem_object
*obj
)
1923 i915_gem_object_unpin_fence(obj
);
1924 i915_gem_object_unpin(obj
);
1927 /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel
1928 * is assumed to be a power-of-two. */
1929 static unsigned long gen4_compute_dspaddr_offset_xtiled(int *x
, int *y
,
1933 int tile_rows
, tiles
;
1937 tiles
= *x
/ (512/bpp
);
1940 return tile_rows
* pitch
* 8 + tiles
* 4096;
1943 static int i9xx_update_plane(struct drm_crtc
*crtc
, struct drm_framebuffer
*fb
,
1946 struct drm_device
*dev
= crtc
->dev
;
1947 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1948 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
1949 struct intel_framebuffer
*intel_fb
;
1950 struct drm_i915_gem_object
*obj
;
1951 int plane
= intel_crtc
->plane
;
1952 unsigned long linear_offset
;
1961 DRM_ERROR("Can't update plane %d in SAREA\n", plane
);
1965 intel_fb
= to_intel_framebuffer(fb
);
1966 obj
= intel_fb
->obj
;
1968 reg
= DSPCNTR(plane
);
1969 dspcntr
= I915_READ(reg
);
1970 /* Mask out pixel format bits in case we change it */
1971 dspcntr
&= ~DISPPLANE_PIXFORMAT_MASK
;
1972 switch (fb
->bits_per_pixel
) {
1974 dspcntr
|= DISPPLANE_8BPP
;
1977 if (fb
->depth
== 15)
1978 dspcntr
|= DISPPLANE_15_16BPP
;
1980 dspcntr
|= DISPPLANE_16BPP
;
1984 dspcntr
|= DISPPLANE_32BPP_NO_ALPHA
;
1987 DRM_ERROR("Unknown color depth %d\n", fb
->bits_per_pixel
);
1990 if (INTEL_INFO(dev
)->gen
>= 4) {
1991 if (obj
->tiling_mode
!= I915_TILING_NONE
)
1992 dspcntr
|= DISPPLANE_TILED
;
1994 dspcntr
&= ~DISPPLANE_TILED
;
1997 I915_WRITE(reg
, dspcntr
);
1999 linear_offset
= y
* fb
->pitches
[0] + x
* (fb
->bits_per_pixel
/ 8);
2001 if (INTEL_INFO(dev
)->gen
>= 4) {
2002 intel_crtc
->dspaddr_offset
=
2003 gen4_compute_dspaddr_offset_xtiled(&x
, &y
,
2004 fb
->bits_per_pixel
/ 8,
2006 linear_offset
-= intel_crtc
->dspaddr_offset
;
2008 intel_crtc
->dspaddr_offset
= linear_offset
;
2011 DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n",
2012 obj
->gtt_offset
, linear_offset
, x
, y
, fb
->pitches
[0]);
2013 I915_WRITE(DSPSTRIDE(plane
), fb
->pitches
[0]);
2014 if (INTEL_INFO(dev
)->gen
>= 4) {
2015 I915_MODIFY_DISPBASE(DSPSURF(plane
),
2016 obj
->gtt_offset
+ intel_crtc
->dspaddr_offset
);
2017 I915_WRITE(DSPTILEOFF(plane
), (y
<< 16) | x
);
2018 I915_WRITE(DSPLINOFF(plane
), linear_offset
);
2020 I915_WRITE(DSPADDR(plane
), obj
->gtt_offset
+ linear_offset
);
2026 static int ironlake_update_plane(struct drm_crtc
*crtc
,
2027 struct drm_framebuffer
*fb
, int x
, int y
)
2029 struct drm_device
*dev
= crtc
->dev
;
2030 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2031 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2032 struct intel_framebuffer
*intel_fb
;
2033 struct drm_i915_gem_object
*obj
;
2034 int plane
= intel_crtc
->plane
;
2035 unsigned long linear_offset
;
2045 DRM_ERROR("Can't update plane %d in SAREA\n", plane
);
2049 intel_fb
= to_intel_framebuffer(fb
);
2050 obj
= intel_fb
->obj
;
2052 reg
= DSPCNTR(plane
);
2053 dspcntr
= I915_READ(reg
);
2054 /* Mask out pixel format bits in case we change it */
2055 dspcntr
&= ~DISPPLANE_PIXFORMAT_MASK
;
2056 switch (fb
->bits_per_pixel
) {
2058 dspcntr
|= DISPPLANE_8BPP
;
2061 if (fb
->depth
!= 16)
2064 dspcntr
|= DISPPLANE_16BPP
;
2068 if (fb
->depth
== 24)
2069 dspcntr
|= DISPPLANE_32BPP_NO_ALPHA
;
2070 else if (fb
->depth
== 30)
2071 dspcntr
|= DISPPLANE_32BPP_30BIT_NO_ALPHA
;
2076 DRM_ERROR("Unknown color depth %d\n", fb
->bits_per_pixel
);
2080 if (obj
->tiling_mode
!= I915_TILING_NONE
)
2081 dspcntr
|= DISPPLANE_TILED
;
2083 dspcntr
&= ~DISPPLANE_TILED
;
2086 dspcntr
|= DISPPLANE_TRICKLE_FEED_DISABLE
;
2088 I915_WRITE(reg
, dspcntr
);
2090 linear_offset
= y
* fb
->pitches
[0] + x
* (fb
->bits_per_pixel
/ 8);
2091 intel_crtc
->dspaddr_offset
=
2092 gen4_compute_dspaddr_offset_xtiled(&x
, &y
,
2093 fb
->bits_per_pixel
/ 8,
2095 linear_offset
-= intel_crtc
->dspaddr_offset
;
2097 DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n",
2098 obj
->gtt_offset
, linear_offset
, x
, y
, fb
->pitches
[0]);
2099 I915_WRITE(DSPSTRIDE(plane
), fb
->pitches
[0]);
2100 I915_MODIFY_DISPBASE(DSPSURF(plane
),
2101 obj
->gtt_offset
+ intel_crtc
->dspaddr_offset
);
2102 I915_WRITE(DSPTILEOFF(plane
), (y
<< 16) | x
);
2103 I915_WRITE(DSPLINOFF(plane
), linear_offset
);
2109 /* Assume fb object is pinned & idle & fenced and just update base pointers */
2111 intel_pipe_set_base_atomic(struct drm_crtc
*crtc
, struct drm_framebuffer
*fb
,
2112 int x
, int y
, enum mode_set_atomic state
)
2114 struct drm_device
*dev
= crtc
->dev
;
2115 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2117 if (dev_priv
->display
.disable_fbc
)
2118 dev_priv
->display
.disable_fbc(dev
);
2119 intel_increase_pllclock(crtc
);
2121 return dev_priv
->display
.update_plane(crtc
, fb
, x
, y
);
2125 intel_finish_fb(struct drm_framebuffer
*old_fb
)
2127 struct drm_i915_gem_object
*obj
= to_intel_framebuffer(old_fb
)->obj
;
2128 struct drm_i915_private
*dev_priv
= obj
->base
.dev
->dev_private
;
2129 bool was_interruptible
= dev_priv
->mm
.interruptible
;
2132 wait_event(dev_priv
->pending_flip_queue
,
2133 atomic_read(&dev_priv
->mm
.wedged
) ||
2134 atomic_read(&obj
->pending_flip
) == 0);
2136 /* Big Hammer, we also need to ensure that any pending
2137 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
2138 * current scanout is retired before unpinning the old
2141 * This should only fail upon a hung GPU, in which case we
2142 * can safely continue.
2144 dev_priv
->mm
.interruptible
= false;
2145 ret
= i915_gem_object_finish_gpu(obj
);
2146 dev_priv
->mm
.interruptible
= was_interruptible
;
2152 intel_pipe_set_base(struct drm_crtc
*crtc
, int x
, int y
,
2153 struct drm_framebuffer
*fb
)
2155 struct drm_device
*dev
= crtc
->dev
;
2156 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2157 struct drm_i915_master_private
*master_priv
;
2158 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2159 struct drm_framebuffer
*old_fb
;
2164 DRM_ERROR("No FB bound\n");
2168 if(intel_crtc
->plane
> dev_priv
->num_pipe
) {
2169 DRM_ERROR("no plane for crtc: plane %d, num_pipes %d\n",
2171 dev_priv
->num_pipe
);
2175 mutex_lock(&dev
->struct_mutex
);
2176 ret
= intel_pin_and_fence_fb_obj(dev
,
2177 to_intel_framebuffer(fb
)->obj
,
2180 mutex_unlock(&dev
->struct_mutex
);
2181 DRM_ERROR("pin & fence failed\n");
2186 intel_finish_fb(crtc
->fb
);
2188 ret
= dev_priv
->display
.update_plane(crtc
, fb
, x
, y
);
2190 intel_unpin_fb_obj(to_intel_framebuffer(fb
)->obj
);
2191 mutex_unlock(&dev
->struct_mutex
);
2192 DRM_ERROR("failed to update base address\n");
2202 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
2203 intel_unpin_fb_obj(to_intel_framebuffer(old_fb
)->obj
);
2206 intel_update_fbc(dev
);
2207 mutex_unlock(&dev
->struct_mutex
);
2209 if (!dev
->primary
->master
)
2212 master_priv
= dev
->primary
->master
->driver_priv
;
2213 if (!master_priv
->sarea_priv
)
2216 if (intel_crtc
->pipe
) {
2217 master_priv
->sarea_priv
->pipeB_x
= x
;
2218 master_priv
->sarea_priv
->pipeB_y
= y
;
2220 master_priv
->sarea_priv
->pipeA_x
= x
;
2221 master_priv
->sarea_priv
->pipeA_y
= y
;
2227 static void ironlake_set_pll_edp(struct drm_crtc
*crtc
, int clock
)
2229 struct drm_device
*dev
= crtc
->dev
;
2230 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2233 DRM_DEBUG_KMS("eDP PLL enable for clock %d\n", clock
);
2234 dpa_ctl
= I915_READ(DP_A
);
2235 dpa_ctl
&= ~DP_PLL_FREQ_MASK
;
2237 if (clock
< 200000) {
2239 dpa_ctl
|= DP_PLL_FREQ_160MHZ
;
2240 /* workaround for 160Mhz:
2241 1) program 0x4600c bits 15:0 = 0x8124
2242 2) program 0x46010 bit 0 = 1
2243 3) program 0x46034 bit 24 = 1
2244 4) program 0x64000 bit 14 = 1
2246 temp
= I915_READ(0x4600c);
2248 I915_WRITE(0x4600c, temp
| 0x8124);
2250 temp
= I915_READ(0x46010);
2251 I915_WRITE(0x46010, temp
| 1);
2253 temp
= I915_READ(0x46034);
2254 I915_WRITE(0x46034, temp
| (1 << 24));
2256 dpa_ctl
|= DP_PLL_FREQ_270MHZ
;
2258 I915_WRITE(DP_A
, dpa_ctl
);
2264 static void intel_fdi_normal_train(struct drm_crtc
*crtc
)
2266 struct drm_device
*dev
= crtc
->dev
;
2267 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2268 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2269 int pipe
= intel_crtc
->pipe
;
2272 /* enable normal train */
2273 reg
= FDI_TX_CTL(pipe
);
2274 temp
= I915_READ(reg
);
2275 if (IS_IVYBRIDGE(dev
)) {
2276 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
2277 temp
|= FDI_LINK_TRAIN_NONE_IVB
| FDI_TX_ENHANCE_FRAME_ENABLE
;
2279 temp
&= ~FDI_LINK_TRAIN_NONE
;
2280 temp
|= FDI_LINK_TRAIN_NONE
| FDI_TX_ENHANCE_FRAME_ENABLE
;
2282 I915_WRITE(reg
, temp
);
2284 reg
= FDI_RX_CTL(pipe
);
2285 temp
= I915_READ(reg
);
2286 if (HAS_PCH_CPT(dev
)) {
2287 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2288 temp
|= FDI_LINK_TRAIN_NORMAL_CPT
;
2290 temp
&= ~FDI_LINK_TRAIN_NONE
;
2291 temp
|= FDI_LINK_TRAIN_NONE
;
2293 I915_WRITE(reg
, temp
| FDI_RX_ENHANCE_FRAME_ENABLE
);
2295 /* wait one idle pattern time */
2299 /* IVB wants error correction enabled */
2300 if (IS_IVYBRIDGE(dev
))
2301 I915_WRITE(reg
, I915_READ(reg
) | FDI_FS_ERRC_ENABLE
|
2302 FDI_FE_ERRC_ENABLE
);
2305 static void cpt_phase_pointer_enable(struct drm_device
*dev
, int pipe
)
2307 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2308 u32 flags
= I915_READ(SOUTH_CHICKEN1
);
2310 flags
|= FDI_PHASE_SYNC_OVR(pipe
);
2311 I915_WRITE(SOUTH_CHICKEN1
, flags
); /* once to unlock... */
2312 flags
|= FDI_PHASE_SYNC_EN(pipe
);
2313 I915_WRITE(SOUTH_CHICKEN1
, flags
); /* then again to enable */
2314 POSTING_READ(SOUTH_CHICKEN1
);
2317 /* The FDI link training functions for ILK/Ibexpeak. */
2318 static void ironlake_fdi_link_train(struct drm_crtc
*crtc
)
2320 struct drm_device
*dev
= crtc
->dev
;
2321 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2322 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2323 int pipe
= intel_crtc
->pipe
;
2324 int plane
= intel_crtc
->plane
;
2325 u32 reg
, temp
, tries
;
2327 /* FDI needs bits from pipe & plane first */
2328 assert_pipe_enabled(dev_priv
, pipe
);
2329 assert_plane_enabled(dev_priv
, plane
);
2331 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2333 reg
= FDI_RX_IMR(pipe
);
2334 temp
= I915_READ(reg
);
2335 temp
&= ~FDI_RX_SYMBOL_LOCK
;
2336 temp
&= ~FDI_RX_BIT_LOCK
;
2337 I915_WRITE(reg
, temp
);
2341 /* enable CPU FDI TX and PCH FDI RX */
2342 reg
= FDI_TX_CTL(pipe
);
2343 temp
= I915_READ(reg
);
2345 temp
|= (intel_crtc
->fdi_lanes
- 1) << 19;
2346 temp
&= ~FDI_LINK_TRAIN_NONE
;
2347 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2348 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
2350 reg
= FDI_RX_CTL(pipe
);
2351 temp
= I915_READ(reg
);
2352 temp
&= ~FDI_LINK_TRAIN_NONE
;
2353 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2354 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
2359 /* Ironlake workaround, enable clock pointer after FDI enable*/
2360 if (HAS_PCH_IBX(dev
)) {
2361 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
2362 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
|
2363 FDI_RX_PHASE_SYNC_POINTER_EN
);
2366 reg
= FDI_RX_IIR(pipe
);
2367 for (tries
= 0; tries
< 5; tries
++) {
2368 temp
= I915_READ(reg
);
2369 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2371 if ((temp
& FDI_RX_BIT_LOCK
)) {
2372 DRM_DEBUG_KMS("FDI train 1 done.\n");
2373 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
2378 DRM_ERROR("FDI train 1 fail!\n");
2381 reg
= FDI_TX_CTL(pipe
);
2382 temp
= I915_READ(reg
);
2383 temp
&= ~FDI_LINK_TRAIN_NONE
;
2384 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2385 I915_WRITE(reg
, temp
);
2387 reg
= FDI_RX_CTL(pipe
);
2388 temp
= I915_READ(reg
);
2389 temp
&= ~FDI_LINK_TRAIN_NONE
;
2390 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2391 I915_WRITE(reg
, temp
);
2396 reg
= FDI_RX_IIR(pipe
);
2397 for (tries
= 0; tries
< 5; tries
++) {
2398 temp
= I915_READ(reg
);
2399 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2401 if (temp
& FDI_RX_SYMBOL_LOCK
) {
2402 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
2403 DRM_DEBUG_KMS("FDI train 2 done.\n");
2408 DRM_ERROR("FDI train 2 fail!\n");
2410 DRM_DEBUG_KMS("FDI train done\n");
2414 static const int snb_b_fdi_train_param
[] = {
2415 FDI_LINK_TRAIN_400MV_0DB_SNB_B
,
2416 FDI_LINK_TRAIN_400MV_6DB_SNB_B
,
2417 FDI_LINK_TRAIN_600MV_3_5DB_SNB_B
,
2418 FDI_LINK_TRAIN_800MV_0DB_SNB_B
,
2421 /* The FDI link training functions for SNB/Cougarpoint. */
2422 static void gen6_fdi_link_train(struct drm_crtc
*crtc
)
2424 struct drm_device
*dev
= crtc
->dev
;
2425 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2426 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2427 int pipe
= intel_crtc
->pipe
;
2428 u32 reg
, temp
, i
, retry
;
2430 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2432 reg
= FDI_RX_IMR(pipe
);
2433 temp
= I915_READ(reg
);
2434 temp
&= ~FDI_RX_SYMBOL_LOCK
;
2435 temp
&= ~FDI_RX_BIT_LOCK
;
2436 I915_WRITE(reg
, temp
);
2441 /* enable CPU FDI TX and PCH FDI RX */
2442 reg
= FDI_TX_CTL(pipe
);
2443 temp
= I915_READ(reg
);
2445 temp
|= (intel_crtc
->fdi_lanes
- 1) << 19;
2446 temp
&= ~FDI_LINK_TRAIN_NONE
;
2447 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2448 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2450 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
2451 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
2453 reg
= FDI_RX_CTL(pipe
);
2454 temp
= I915_READ(reg
);
2455 if (HAS_PCH_CPT(dev
)) {
2456 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2457 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
2459 temp
&= ~FDI_LINK_TRAIN_NONE
;
2460 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2462 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
2467 if (HAS_PCH_CPT(dev
))
2468 cpt_phase_pointer_enable(dev
, pipe
);
2470 for (i
= 0; i
< 4; i
++) {
2471 reg
= FDI_TX_CTL(pipe
);
2472 temp
= I915_READ(reg
);
2473 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2474 temp
|= snb_b_fdi_train_param
[i
];
2475 I915_WRITE(reg
, temp
);
2480 for (retry
= 0; retry
< 5; retry
++) {
2481 reg
= FDI_RX_IIR(pipe
);
2482 temp
= I915_READ(reg
);
2483 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2484 if (temp
& FDI_RX_BIT_LOCK
) {
2485 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
2486 DRM_DEBUG_KMS("FDI train 1 done.\n");
2495 DRM_ERROR("FDI train 1 fail!\n");
2498 reg
= FDI_TX_CTL(pipe
);
2499 temp
= I915_READ(reg
);
2500 temp
&= ~FDI_LINK_TRAIN_NONE
;
2501 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2503 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2505 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
2507 I915_WRITE(reg
, temp
);
2509 reg
= FDI_RX_CTL(pipe
);
2510 temp
= I915_READ(reg
);
2511 if (HAS_PCH_CPT(dev
)) {
2512 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2513 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
2515 temp
&= ~FDI_LINK_TRAIN_NONE
;
2516 temp
|= FDI_LINK_TRAIN_PATTERN_2
;
2518 I915_WRITE(reg
, temp
);
2523 for (i
= 0; i
< 4; i
++) {
2524 reg
= FDI_TX_CTL(pipe
);
2525 temp
= I915_READ(reg
);
2526 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2527 temp
|= snb_b_fdi_train_param
[i
];
2528 I915_WRITE(reg
, temp
);
2533 for (retry
= 0; retry
< 5; retry
++) {
2534 reg
= FDI_RX_IIR(pipe
);
2535 temp
= I915_READ(reg
);
2536 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2537 if (temp
& FDI_RX_SYMBOL_LOCK
) {
2538 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
2539 DRM_DEBUG_KMS("FDI train 2 done.\n");
2548 DRM_ERROR("FDI train 2 fail!\n");
2550 DRM_DEBUG_KMS("FDI train done.\n");
2553 /* Manual link training for Ivy Bridge A0 parts */
2554 static void ivb_manual_fdi_link_train(struct drm_crtc
*crtc
)
2556 struct drm_device
*dev
= crtc
->dev
;
2557 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2558 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2559 int pipe
= intel_crtc
->pipe
;
2562 /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
2564 reg
= FDI_RX_IMR(pipe
);
2565 temp
= I915_READ(reg
);
2566 temp
&= ~FDI_RX_SYMBOL_LOCK
;
2567 temp
&= ~FDI_RX_BIT_LOCK
;
2568 I915_WRITE(reg
, temp
);
2573 /* enable CPU FDI TX and PCH FDI RX */
2574 reg
= FDI_TX_CTL(pipe
);
2575 temp
= I915_READ(reg
);
2577 temp
|= (intel_crtc
->fdi_lanes
- 1) << 19;
2578 temp
&= ~(FDI_LINK_TRAIN_AUTO
| FDI_LINK_TRAIN_NONE_IVB
);
2579 temp
|= FDI_LINK_TRAIN_PATTERN_1_IVB
;
2580 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2581 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
2582 temp
|= FDI_COMPOSITE_SYNC
;
2583 I915_WRITE(reg
, temp
| FDI_TX_ENABLE
);
2585 reg
= FDI_RX_CTL(pipe
);
2586 temp
= I915_READ(reg
);
2587 temp
&= ~FDI_LINK_TRAIN_AUTO
;
2588 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2589 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
2590 temp
|= FDI_COMPOSITE_SYNC
;
2591 I915_WRITE(reg
, temp
| FDI_RX_ENABLE
);
2596 if (HAS_PCH_CPT(dev
))
2597 cpt_phase_pointer_enable(dev
, pipe
);
2599 for (i
= 0; i
< 4; i
++) {
2600 reg
= FDI_TX_CTL(pipe
);
2601 temp
= I915_READ(reg
);
2602 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2603 temp
|= snb_b_fdi_train_param
[i
];
2604 I915_WRITE(reg
, temp
);
2609 reg
= FDI_RX_IIR(pipe
);
2610 temp
= I915_READ(reg
);
2611 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2613 if (temp
& FDI_RX_BIT_LOCK
||
2614 (I915_READ(reg
) & FDI_RX_BIT_LOCK
)) {
2615 I915_WRITE(reg
, temp
| FDI_RX_BIT_LOCK
);
2616 DRM_DEBUG_KMS("FDI train 1 done.\n");
2621 DRM_ERROR("FDI train 1 fail!\n");
2624 reg
= FDI_TX_CTL(pipe
);
2625 temp
= I915_READ(reg
);
2626 temp
&= ~FDI_LINK_TRAIN_NONE_IVB
;
2627 temp
|= FDI_LINK_TRAIN_PATTERN_2_IVB
;
2628 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2629 temp
|= FDI_LINK_TRAIN_400MV_0DB_SNB_B
;
2630 I915_WRITE(reg
, temp
);
2632 reg
= FDI_RX_CTL(pipe
);
2633 temp
= I915_READ(reg
);
2634 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2635 temp
|= FDI_LINK_TRAIN_PATTERN_2_CPT
;
2636 I915_WRITE(reg
, temp
);
2641 for (i
= 0; i
< 4; i
++) {
2642 reg
= FDI_TX_CTL(pipe
);
2643 temp
= I915_READ(reg
);
2644 temp
&= ~FDI_LINK_TRAIN_VOL_EMP_MASK
;
2645 temp
|= snb_b_fdi_train_param
[i
];
2646 I915_WRITE(reg
, temp
);
2651 reg
= FDI_RX_IIR(pipe
);
2652 temp
= I915_READ(reg
);
2653 DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp
);
2655 if (temp
& FDI_RX_SYMBOL_LOCK
) {
2656 I915_WRITE(reg
, temp
| FDI_RX_SYMBOL_LOCK
);
2657 DRM_DEBUG_KMS("FDI train 2 done.\n");
2662 DRM_ERROR("FDI train 2 fail!\n");
2664 DRM_DEBUG_KMS("FDI train done.\n");
2667 static void ironlake_fdi_pll_enable(struct intel_crtc
*intel_crtc
)
2669 struct drm_device
*dev
= intel_crtc
->base
.dev
;
2670 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2671 int pipe
= intel_crtc
->pipe
;
2674 /* Write the TU size bits so error detection works */
2675 I915_WRITE(FDI_RX_TUSIZE1(pipe
),
2676 I915_READ(PIPE_DATA_M1(pipe
)) & TU_SIZE_MASK
);
2678 /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
2679 reg
= FDI_RX_CTL(pipe
);
2680 temp
= I915_READ(reg
);
2681 temp
&= ~((0x7 << 19) | (0x7 << 16));
2682 temp
|= (intel_crtc
->fdi_lanes
- 1) << 19;
2683 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPE_BPC_MASK
) << 11;
2684 I915_WRITE(reg
, temp
| FDI_RX_PLL_ENABLE
);
2689 /* Switch from Rawclk to PCDclk */
2690 temp
= I915_READ(reg
);
2691 I915_WRITE(reg
, temp
| FDI_PCDCLK
);
2696 /* On Haswell, the PLL configuration for ports and pipes is handled
2697 * separately, as part of DDI setup */
2698 if (!IS_HASWELL(dev
)) {
2699 /* Enable CPU FDI TX PLL, always on for Ironlake */
2700 reg
= FDI_TX_CTL(pipe
);
2701 temp
= I915_READ(reg
);
2702 if ((temp
& FDI_TX_PLL_ENABLE
) == 0) {
2703 I915_WRITE(reg
, temp
| FDI_TX_PLL_ENABLE
);
2711 static void ironlake_fdi_pll_disable(struct intel_crtc
*intel_crtc
)
2713 struct drm_device
*dev
= intel_crtc
->base
.dev
;
2714 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2715 int pipe
= intel_crtc
->pipe
;
2718 /* Switch from PCDclk to Rawclk */
2719 reg
= FDI_RX_CTL(pipe
);
2720 temp
= I915_READ(reg
);
2721 I915_WRITE(reg
, temp
& ~FDI_PCDCLK
);
2723 /* Disable CPU FDI TX PLL */
2724 reg
= FDI_TX_CTL(pipe
);
2725 temp
= I915_READ(reg
);
2726 I915_WRITE(reg
, temp
& ~FDI_TX_PLL_ENABLE
);
2731 reg
= FDI_RX_CTL(pipe
);
2732 temp
= I915_READ(reg
);
2733 I915_WRITE(reg
, temp
& ~FDI_RX_PLL_ENABLE
);
2735 /* Wait for the clocks to turn off. */
2740 static void cpt_phase_pointer_disable(struct drm_device
*dev
, int pipe
)
2742 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2743 u32 flags
= I915_READ(SOUTH_CHICKEN1
);
2745 flags
&= ~(FDI_PHASE_SYNC_EN(pipe
));
2746 I915_WRITE(SOUTH_CHICKEN1
, flags
); /* once to disable... */
2747 flags
&= ~(FDI_PHASE_SYNC_OVR(pipe
));
2748 I915_WRITE(SOUTH_CHICKEN1
, flags
); /* then again to lock */
2749 POSTING_READ(SOUTH_CHICKEN1
);
2751 static void ironlake_fdi_disable(struct drm_crtc
*crtc
)
2753 struct drm_device
*dev
= crtc
->dev
;
2754 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2755 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2756 int pipe
= intel_crtc
->pipe
;
2759 /* disable CPU FDI tx and PCH FDI rx */
2760 reg
= FDI_TX_CTL(pipe
);
2761 temp
= I915_READ(reg
);
2762 I915_WRITE(reg
, temp
& ~FDI_TX_ENABLE
);
2765 reg
= FDI_RX_CTL(pipe
);
2766 temp
= I915_READ(reg
);
2767 temp
&= ~(0x7 << 16);
2768 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPE_BPC_MASK
) << 11;
2769 I915_WRITE(reg
, temp
& ~FDI_RX_ENABLE
);
2774 /* Ironlake workaround, disable clock pointer after downing FDI */
2775 if (HAS_PCH_IBX(dev
)) {
2776 I915_WRITE(FDI_RX_CHICKEN(pipe
), FDI_RX_PHASE_SYNC_POINTER_OVR
);
2777 I915_WRITE(FDI_RX_CHICKEN(pipe
),
2778 I915_READ(FDI_RX_CHICKEN(pipe
) &
2779 ~FDI_RX_PHASE_SYNC_POINTER_EN
));
2780 } else if (HAS_PCH_CPT(dev
)) {
2781 cpt_phase_pointer_disable(dev
, pipe
);
2784 /* still set train pattern 1 */
2785 reg
= FDI_TX_CTL(pipe
);
2786 temp
= I915_READ(reg
);
2787 temp
&= ~FDI_LINK_TRAIN_NONE
;
2788 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2789 I915_WRITE(reg
, temp
);
2791 reg
= FDI_RX_CTL(pipe
);
2792 temp
= I915_READ(reg
);
2793 if (HAS_PCH_CPT(dev
)) {
2794 temp
&= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT
;
2795 temp
|= FDI_LINK_TRAIN_PATTERN_1_CPT
;
2797 temp
&= ~FDI_LINK_TRAIN_NONE
;
2798 temp
|= FDI_LINK_TRAIN_PATTERN_1
;
2800 /* BPC in FDI rx is consistent with that in PIPECONF */
2801 temp
&= ~(0x07 << 16);
2802 temp
|= (I915_READ(PIPECONF(pipe
)) & PIPE_BPC_MASK
) << 11;
2803 I915_WRITE(reg
, temp
);
2809 static bool intel_crtc_has_pending_flip(struct drm_crtc
*crtc
)
2811 struct drm_device
*dev
= crtc
->dev
;
2812 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2813 unsigned long flags
;
2816 if (atomic_read(&dev_priv
->mm
.wedged
))
2819 spin_lock_irqsave(&dev
->event_lock
, flags
);
2820 pending
= to_intel_crtc(crtc
)->unpin_work
!= NULL
;
2821 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
2826 static void intel_crtc_wait_for_pending_flips(struct drm_crtc
*crtc
)
2828 struct drm_device
*dev
= crtc
->dev
;
2829 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2831 if (crtc
->fb
== NULL
)
2834 wait_event(dev_priv
->pending_flip_queue
,
2835 !intel_crtc_has_pending_flip(crtc
));
2837 mutex_lock(&dev
->struct_mutex
);
2838 intel_finish_fb(crtc
->fb
);
2839 mutex_unlock(&dev
->struct_mutex
);
2842 static bool intel_crtc_driving_pch(struct drm_crtc
*crtc
)
2844 struct drm_device
*dev
= crtc
->dev
;
2845 struct intel_encoder
*intel_encoder
;
2848 * If there's a non-PCH eDP on this crtc, it must be DP_A, and that
2849 * must be driven by its own crtc; no sharing is possible.
2851 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
) {
2853 /* On Haswell, LPT PCH handles the VGA connection via FDI, and Haswell
2854 * CPU handles all others */
2855 if (IS_HASWELL(dev
)) {
2856 /* It is still unclear how this will work on PPT, so throw up a warning */
2857 WARN_ON(!HAS_PCH_LPT(dev
));
2859 if (intel_encoder
->type
== INTEL_OUTPUT_ANALOG
) {
2860 DRM_DEBUG_KMS("Haswell detected DAC encoder, assuming is PCH\n");
2863 DRM_DEBUG_KMS("Haswell detected encoder %d, assuming is CPU\n",
2864 intel_encoder
->type
);
2869 switch (intel_encoder
->type
) {
2870 case INTEL_OUTPUT_EDP
:
2871 if (!intel_encoder_is_pch_edp(&intel_encoder
->base
))
2880 /* Program iCLKIP clock to the desired frequency */
2881 static void lpt_program_iclkip(struct drm_crtc
*crtc
)
2883 struct drm_device
*dev
= crtc
->dev
;
2884 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2885 u32 divsel
, phaseinc
, auxdiv
, phasedir
= 0;
2888 /* It is necessary to ungate the pixclk gate prior to programming
2889 * the divisors, and gate it back when it is done.
2891 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_GATE
);
2893 /* Disable SSCCTL */
2894 intel_sbi_write(dev_priv
, SBI_SSCCTL6
,
2895 intel_sbi_read(dev_priv
, SBI_SSCCTL6
) |
2896 SBI_SSCCTL_DISABLE
);
2898 /* 20MHz is a corner case which is out of range for the 7-bit divisor */
2899 if (crtc
->mode
.clock
== 20000) {
2904 /* The iCLK virtual clock root frequency is in MHz,
2905 * but the crtc->mode.clock in in KHz. To get the divisors,
2906 * it is necessary to divide one by another, so we
2907 * convert the virtual clock precision to KHz here for higher
2910 u32 iclk_virtual_root_freq
= 172800 * 1000;
2911 u32 iclk_pi_range
= 64;
2912 u32 desired_divisor
, msb_divisor_value
, pi_value
;
2914 desired_divisor
= (iclk_virtual_root_freq
/ crtc
->mode
.clock
);
2915 msb_divisor_value
= desired_divisor
/ iclk_pi_range
;
2916 pi_value
= desired_divisor
% iclk_pi_range
;
2919 divsel
= msb_divisor_value
- 2;
2920 phaseinc
= pi_value
;
2923 /* This should not happen with any sane values */
2924 WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel
) &
2925 ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
);
2926 WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir
) &
2927 ~SBI_SSCDIVINTPHASE_INCVAL_MASK
);
2929 DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
2936 /* Program SSCDIVINTPHASE6 */
2937 temp
= intel_sbi_read(dev_priv
, SBI_SSCDIVINTPHASE6
);
2938 temp
&= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK
;
2939 temp
|= SBI_SSCDIVINTPHASE_DIVSEL(divsel
);
2940 temp
&= ~SBI_SSCDIVINTPHASE_INCVAL_MASK
;
2941 temp
|= SBI_SSCDIVINTPHASE_INCVAL(phaseinc
);
2942 temp
|= SBI_SSCDIVINTPHASE_DIR(phasedir
);
2943 temp
|= SBI_SSCDIVINTPHASE_PROPAGATE
;
2945 intel_sbi_write(dev_priv
,
2946 SBI_SSCDIVINTPHASE6
,
2949 /* Program SSCAUXDIV */
2950 temp
= intel_sbi_read(dev_priv
, SBI_SSCAUXDIV6
);
2951 temp
&= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
2952 temp
|= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv
);
2953 intel_sbi_write(dev_priv
,
2958 /* Enable modulator and associated divider */
2959 temp
= intel_sbi_read(dev_priv
, SBI_SSCCTL6
);
2960 temp
&= ~SBI_SSCCTL_DISABLE
;
2961 intel_sbi_write(dev_priv
,
2965 /* Wait for initialization time */
2968 I915_WRITE(PIXCLK_GATE
, PIXCLK_GATE_UNGATE
);
2972 * Enable PCH resources required for PCH ports:
2974 * - FDI training & RX/TX
2975 * - update transcoder timings
2976 * - DP transcoding bits
2979 static void ironlake_pch_enable(struct drm_crtc
*crtc
)
2981 struct drm_device
*dev
= crtc
->dev
;
2982 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
2983 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
2984 int pipe
= intel_crtc
->pipe
;
2987 assert_transcoder_disabled(dev_priv
, pipe
);
2989 /* For PCH output, training FDI link */
2990 dev_priv
->display
.fdi_link_train(crtc
);
2992 intel_enable_pch_pll(intel_crtc
);
2994 if (HAS_PCH_LPT(dev
)) {
2995 DRM_DEBUG_KMS("LPT detected: programming iCLKIP\n");
2996 lpt_program_iclkip(crtc
);
2997 } else if (HAS_PCH_CPT(dev
)) {
3000 temp
= I915_READ(PCH_DPLL_SEL
);
3004 temp
|= TRANSA_DPLL_ENABLE
;
3005 sel
= TRANSA_DPLLB_SEL
;
3008 temp
|= TRANSB_DPLL_ENABLE
;
3009 sel
= TRANSB_DPLLB_SEL
;
3012 temp
|= TRANSC_DPLL_ENABLE
;
3013 sel
= TRANSC_DPLLB_SEL
;
3016 if (intel_crtc
->pch_pll
->pll_reg
== _PCH_DPLL_B
)
3020 I915_WRITE(PCH_DPLL_SEL
, temp
);
3023 /* set transcoder timing, panel must allow it */
3024 assert_panel_unlocked(dev_priv
, pipe
);
3025 I915_WRITE(TRANS_HTOTAL(pipe
), I915_READ(HTOTAL(pipe
)));
3026 I915_WRITE(TRANS_HBLANK(pipe
), I915_READ(HBLANK(pipe
)));
3027 I915_WRITE(TRANS_HSYNC(pipe
), I915_READ(HSYNC(pipe
)));
3029 I915_WRITE(TRANS_VTOTAL(pipe
), I915_READ(VTOTAL(pipe
)));
3030 I915_WRITE(TRANS_VBLANK(pipe
), I915_READ(VBLANK(pipe
)));
3031 I915_WRITE(TRANS_VSYNC(pipe
), I915_READ(VSYNC(pipe
)));
3032 I915_WRITE(TRANS_VSYNCSHIFT(pipe
), I915_READ(VSYNCSHIFT(pipe
)));
3034 if (!IS_HASWELL(dev
))
3035 intel_fdi_normal_train(crtc
);
3037 /* For PCH DP, enable TRANS_DP_CTL */
3038 if (HAS_PCH_CPT(dev
) &&
3039 (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
) ||
3040 intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
))) {
3041 u32 bpc
= (I915_READ(PIPECONF(pipe
)) & PIPE_BPC_MASK
) >> 5;
3042 reg
= TRANS_DP_CTL(pipe
);
3043 temp
= I915_READ(reg
);
3044 temp
&= ~(TRANS_DP_PORT_SEL_MASK
|
3045 TRANS_DP_SYNC_MASK
|
3047 temp
|= (TRANS_DP_OUTPUT_ENABLE
|
3048 TRANS_DP_ENH_FRAMING
);
3049 temp
|= bpc
<< 9; /* same format but at 11:9 */
3051 if (crtc
->mode
.flags
& DRM_MODE_FLAG_PHSYNC
)
3052 temp
|= TRANS_DP_HSYNC_ACTIVE_HIGH
;
3053 if (crtc
->mode
.flags
& DRM_MODE_FLAG_PVSYNC
)
3054 temp
|= TRANS_DP_VSYNC_ACTIVE_HIGH
;
3056 switch (intel_trans_dp_port_sel(crtc
)) {
3058 temp
|= TRANS_DP_PORT_SEL_B
;
3061 temp
|= TRANS_DP_PORT_SEL_C
;
3064 temp
|= TRANS_DP_PORT_SEL_D
;
3067 DRM_DEBUG_KMS("Wrong PCH DP port return. Guess port B\n");
3068 temp
|= TRANS_DP_PORT_SEL_B
;
3072 I915_WRITE(reg
, temp
);
3075 intel_enable_transcoder(dev_priv
, pipe
);
3078 static void intel_put_pch_pll(struct intel_crtc
*intel_crtc
)
3080 struct intel_pch_pll
*pll
= intel_crtc
->pch_pll
;
3085 if (pll
->refcount
== 0) {
3086 WARN(1, "bad PCH PLL refcount\n");
3091 intel_crtc
->pch_pll
= NULL
;
3094 static struct intel_pch_pll
*intel_get_pch_pll(struct intel_crtc
*intel_crtc
, u32 dpll
, u32 fp
)
3096 struct drm_i915_private
*dev_priv
= intel_crtc
->base
.dev
->dev_private
;
3097 struct intel_pch_pll
*pll
;
3100 pll
= intel_crtc
->pch_pll
;
3102 DRM_DEBUG_KMS("CRTC:%d reusing existing PCH PLL %x\n",
3103 intel_crtc
->base
.base
.id
, pll
->pll_reg
);
3107 if (HAS_PCH_IBX(dev_priv
->dev
)) {
3108 /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
3109 i
= intel_crtc
->pipe
;
3110 pll
= &dev_priv
->pch_plls
[i
];
3112 DRM_DEBUG_KMS("CRTC:%d using pre-allocated PCH PLL %x\n",
3113 intel_crtc
->base
.base
.id
, pll
->pll_reg
);
3118 for (i
= 0; i
< dev_priv
->num_pch_pll
; i
++) {
3119 pll
= &dev_priv
->pch_plls
[i
];
3121 /* Only want to check enabled timings first */
3122 if (pll
->refcount
== 0)
3125 if (dpll
== (I915_READ(pll
->pll_reg
) & 0x7fffffff) &&
3126 fp
== I915_READ(pll
->fp0_reg
)) {
3127 DRM_DEBUG_KMS("CRTC:%d sharing existing PCH PLL %x (refcount %d, ative %d)\n",
3128 intel_crtc
->base
.base
.id
,
3129 pll
->pll_reg
, pll
->refcount
, pll
->active
);
3135 /* Ok no matching timings, maybe there's a free one? */
3136 for (i
= 0; i
< dev_priv
->num_pch_pll
; i
++) {
3137 pll
= &dev_priv
->pch_plls
[i
];
3138 if (pll
->refcount
== 0) {
3139 DRM_DEBUG_KMS("CRTC:%d allocated PCH PLL %x\n",
3140 intel_crtc
->base
.base
.id
, pll
->pll_reg
);
3148 intel_crtc
->pch_pll
= pll
;
3150 DRM_DEBUG_DRIVER("using pll %d for pipe %d\n", i
, intel_crtc
->pipe
);
3151 prepare
: /* separate function? */
3152 DRM_DEBUG_DRIVER("switching PLL %x off\n", pll
->pll_reg
);
3154 /* Wait for the clocks to stabilize before rewriting the regs */
3155 I915_WRITE(pll
->pll_reg
, dpll
& ~DPLL_VCO_ENABLE
);
3156 POSTING_READ(pll
->pll_reg
);
3159 I915_WRITE(pll
->fp0_reg
, fp
);
3160 I915_WRITE(pll
->pll_reg
, dpll
& ~DPLL_VCO_ENABLE
);
3165 void intel_cpt_verify_modeset(struct drm_device
*dev
, int pipe
)
3167 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3168 int dslreg
= PIPEDSL(pipe
), tc2reg
= TRANS_CHICKEN2(pipe
);
3171 temp
= I915_READ(dslreg
);
3173 if (wait_for(I915_READ(dslreg
) != temp
, 5)) {
3174 /* Without this, mode sets may fail silently on FDI */
3175 I915_WRITE(tc2reg
, TRANS_AUTOTRAIN_GEN_STALL_DIS
);
3177 I915_WRITE(tc2reg
, 0);
3178 if (wait_for(I915_READ(dslreg
) != temp
, 5))
3179 DRM_ERROR("mode set failed: pipe %d stuck\n", pipe
);
3183 static void ironlake_crtc_enable(struct drm_crtc
*crtc
)
3185 struct drm_device
*dev
= crtc
->dev
;
3186 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3187 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3188 struct intel_encoder
*encoder
;
3189 int pipe
= intel_crtc
->pipe
;
3190 int plane
= intel_crtc
->plane
;
3194 WARN_ON(!crtc
->enabled
);
3196 if (intel_crtc
->active
)
3199 intel_crtc
->active
= true;
3200 intel_update_watermarks(dev
);
3202 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
3203 temp
= I915_READ(PCH_LVDS
);
3204 if ((temp
& LVDS_PORT_EN
) == 0)
3205 I915_WRITE(PCH_LVDS
, temp
| LVDS_PORT_EN
);
3208 is_pch_port
= intel_crtc_driving_pch(crtc
);
3211 ironlake_fdi_pll_enable(intel_crtc
);
3213 assert_fdi_tx_disabled(dev_priv
, pipe
);
3214 assert_fdi_rx_disabled(dev_priv
, pipe
);
3217 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3218 if (encoder
->pre_enable
)
3219 encoder
->pre_enable(encoder
);
3221 /* Enable panel fitting for LVDS */
3222 if (dev_priv
->pch_pf_size
&&
3223 (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) || HAS_eDP
)) {
3224 /* Force use of hard-coded filter coefficients
3225 * as some pre-programmed values are broken,
3228 I915_WRITE(PF_CTL(pipe
), PF_ENABLE
| PF_FILTER_MED_3x3
);
3229 I915_WRITE(PF_WIN_POS(pipe
), dev_priv
->pch_pf_pos
);
3230 I915_WRITE(PF_WIN_SZ(pipe
), dev_priv
->pch_pf_size
);
3234 * On ILK+ LUT must be loaded before the pipe is running but with
3237 intel_crtc_load_lut(crtc
);
3239 intel_enable_pipe(dev_priv
, pipe
, is_pch_port
);
3240 intel_enable_plane(dev_priv
, plane
, pipe
);
3243 ironlake_pch_enable(crtc
);
3245 mutex_lock(&dev
->struct_mutex
);
3246 intel_update_fbc(dev
);
3247 mutex_unlock(&dev
->struct_mutex
);
3249 intel_crtc_update_cursor(crtc
, true);
3251 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3252 encoder
->enable(encoder
);
3254 if (HAS_PCH_CPT(dev
))
3255 intel_cpt_verify_modeset(dev
, intel_crtc
->pipe
);
3258 * There seems to be a race in PCH platform hw (at least on some
3259 * outputs) where an enabled pipe still completes any pageflip right
3260 * away (as if the pipe is off) instead of waiting for vblank. As soon
3261 * as the first vblank happend, everything works as expected. Hence just
3262 * wait for one vblank before returning to avoid strange things
3265 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
3268 static void ironlake_crtc_disable(struct drm_crtc
*crtc
)
3270 struct drm_device
*dev
= crtc
->dev
;
3271 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3272 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3273 struct intel_encoder
*encoder
;
3274 int pipe
= intel_crtc
->pipe
;
3275 int plane
= intel_crtc
->plane
;
3279 if (!intel_crtc
->active
)
3282 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3283 encoder
->disable(encoder
);
3285 intel_crtc_wait_for_pending_flips(crtc
);
3286 drm_vblank_off(dev
, pipe
);
3287 intel_crtc_update_cursor(crtc
, false);
3289 intel_disable_plane(dev_priv
, plane
, pipe
);
3291 if (dev_priv
->cfb_plane
== plane
)
3292 intel_disable_fbc(dev
);
3294 intel_disable_pipe(dev_priv
, pipe
);
3297 I915_WRITE(PF_CTL(pipe
), 0);
3298 I915_WRITE(PF_WIN_SZ(pipe
), 0);
3300 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3301 if (encoder
->post_disable
)
3302 encoder
->post_disable(encoder
);
3304 ironlake_fdi_disable(crtc
);
3306 intel_disable_transcoder(dev_priv
, pipe
);
3308 if (HAS_PCH_CPT(dev
)) {
3309 /* disable TRANS_DP_CTL */
3310 reg
= TRANS_DP_CTL(pipe
);
3311 temp
= I915_READ(reg
);
3312 temp
&= ~(TRANS_DP_OUTPUT_ENABLE
| TRANS_DP_PORT_SEL_MASK
);
3313 temp
|= TRANS_DP_PORT_SEL_NONE
;
3314 I915_WRITE(reg
, temp
);
3316 /* disable DPLL_SEL */
3317 temp
= I915_READ(PCH_DPLL_SEL
);
3320 temp
&= ~(TRANSA_DPLL_ENABLE
| TRANSA_DPLLB_SEL
);
3323 temp
&= ~(TRANSB_DPLL_ENABLE
| TRANSB_DPLLB_SEL
);
3326 /* C shares PLL A or B */
3327 temp
&= ~(TRANSC_DPLL_ENABLE
| TRANSC_DPLLB_SEL
);
3332 I915_WRITE(PCH_DPLL_SEL
, temp
);
3335 /* disable PCH DPLL */
3336 intel_disable_pch_pll(intel_crtc
);
3338 ironlake_fdi_pll_disable(intel_crtc
);
3340 intel_crtc
->active
= false;
3341 intel_update_watermarks(dev
);
3343 mutex_lock(&dev
->struct_mutex
);
3344 intel_update_fbc(dev
);
3345 mutex_unlock(&dev
->struct_mutex
);
3348 static void ironlake_crtc_off(struct drm_crtc
*crtc
)
3350 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3351 intel_put_pch_pll(intel_crtc
);
3354 static void intel_crtc_dpms_overlay(struct intel_crtc
*intel_crtc
, bool enable
)
3356 if (!enable
&& intel_crtc
->overlay
) {
3357 struct drm_device
*dev
= intel_crtc
->base
.dev
;
3358 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3360 mutex_lock(&dev
->struct_mutex
);
3361 dev_priv
->mm
.interruptible
= false;
3362 (void) intel_overlay_switch_off(intel_crtc
->overlay
);
3363 dev_priv
->mm
.interruptible
= true;
3364 mutex_unlock(&dev
->struct_mutex
);
3367 /* Let userspace switch the overlay on again. In most cases userspace
3368 * has to recompute where to put it anyway.
3372 static void i9xx_crtc_enable(struct drm_crtc
*crtc
)
3374 struct drm_device
*dev
= crtc
->dev
;
3375 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3376 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3377 struct intel_encoder
*encoder
;
3378 int pipe
= intel_crtc
->pipe
;
3379 int plane
= intel_crtc
->plane
;
3381 WARN_ON(!crtc
->enabled
);
3383 if (intel_crtc
->active
)
3386 intel_crtc
->active
= true;
3387 intel_update_watermarks(dev
);
3389 intel_enable_pll(dev_priv
, pipe
);
3390 intel_enable_pipe(dev_priv
, pipe
, false);
3391 intel_enable_plane(dev_priv
, plane
, pipe
);
3393 intel_crtc_load_lut(crtc
);
3394 intel_update_fbc(dev
);
3396 /* Give the overlay scaler a chance to enable if it's on this pipe */
3397 intel_crtc_dpms_overlay(intel_crtc
, true);
3398 intel_crtc_update_cursor(crtc
, true);
3400 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3401 encoder
->enable(encoder
);
3404 static void i9xx_crtc_disable(struct drm_crtc
*crtc
)
3406 struct drm_device
*dev
= crtc
->dev
;
3407 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3408 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3409 struct intel_encoder
*encoder
;
3410 int pipe
= intel_crtc
->pipe
;
3411 int plane
= intel_crtc
->plane
;
3414 if (!intel_crtc
->active
)
3417 for_each_encoder_on_crtc(dev
, crtc
, encoder
)
3418 encoder
->disable(encoder
);
3420 /* Give the overlay scaler a chance to disable if it's on this pipe */
3421 intel_crtc_wait_for_pending_flips(crtc
);
3422 drm_vblank_off(dev
, pipe
);
3423 intel_crtc_dpms_overlay(intel_crtc
, false);
3424 intel_crtc_update_cursor(crtc
, false);
3426 if (dev_priv
->cfb_plane
== plane
)
3427 intel_disable_fbc(dev
);
3429 intel_disable_plane(dev_priv
, plane
, pipe
);
3430 intel_disable_pipe(dev_priv
, pipe
);
3431 intel_disable_pll(dev_priv
, pipe
);
3433 intel_crtc
->active
= false;
3434 intel_update_fbc(dev
);
3435 intel_update_watermarks(dev
);
3438 static void i9xx_crtc_off(struct drm_crtc
*crtc
)
3442 static void intel_crtc_update_sarea(struct drm_crtc
*crtc
,
3445 struct drm_device
*dev
= crtc
->dev
;
3446 struct drm_i915_master_private
*master_priv
;
3447 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3448 int pipe
= intel_crtc
->pipe
;
3450 if (!dev
->primary
->master
)
3453 master_priv
= dev
->primary
->master
->driver_priv
;
3454 if (!master_priv
->sarea_priv
)
3459 master_priv
->sarea_priv
->pipeA_w
= enabled
? crtc
->mode
.hdisplay
: 0;
3460 master_priv
->sarea_priv
->pipeA_h
= enabled
? crtc
->mode
.vdisplay
: 0;
3463 master_priv
->sarea_priv
->pipeB_w
= enabled
? crtc
->mode
.hdisplay
: 0;
3464 master_priv
->sarea_priv
->pipeB_h
= enabled
? crtc
->mode
.vdisplay
: 0;
3467 DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe
));
3473 * Sets the power management mode of the pipe and plane.
3475 void intel_crtc_update_dpms(struct drm_crtc
*crtc
)
3477 struct drm_device
*dev
= crtc
->dev
;
3478 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3479 struct intel_encoder
*intel_encoder
;
3480 bool enable
= false;
3482 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
)
3483 enable
|= intel_encoder
->connectors_active
;
3486 dev_priv
->display
.crtc_enable(crtc
);
3488 dev_priv
->display
.crtc_disable(crtc
);
3490 intel_crtc_update_sarea(crtc
, enable
);
3493 static void intel_crtc_noop(struct drm_crtc
*crtc
)
3497 static void intel_crtc_disable(struct drm_crtc
*crtc
)
3499 struct drm_device
*dev
= crtc
->dev
;
3500 struct drm_connector
*connector
;
3501 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3503 /* crtc should still be enabled when we disable it. */
3504 WARN_ON(!crtc
->enabled
);
3506 dev_priv
->display
.crtc_disable(crtc
);
3507 intel_crtc_update_sarea(crtc
, false);
3508 dev_priv
->display
.off(crtc
);
3510 assert_plane_disabled(dev
->dev_private
, to_intel_crtc(crtc
)->plane
);
3511 assert_pipe_disabled(dev
->dev_private
, to_intel_crtc(crtc
)->pipe
);
3514 mutex_lock(&dev
->struct_mutex
);
3515 intel_unpin_fb_obj(to_intel_framebuffer(crtc
->fb
)->obj
);
3516 mutex_unlock(&dev
->struct_mutex
);
3520 /* Update computed state. */
3521 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
3522 if (!connector
->encoder
|| !connector
->encoder
->crtc
)
3525 if (connector
->encoder
->crtc
!= crtc
)
3528 connector
->dpms
= DRM_MODE_DPMS_OFF
;
3529 to_intel_encoder(connector
->encoder
)->connectors_active
= false;
3533 void intel_modeset_disable(struct drm_device
*dev
)
3535 struct drm_crtc
*crtc
;
3537 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
3539 intel_crtc_disable(crtc
);
3543 void intel_encoder_noop(struct drm_encoder
*encoder
)
3547 void intel_encoder_destroy(struct drm_encoder
*encoder
)
3549 struct intel_encoder
*intel_encoder
= to_intel_encoder(encoder
);
3551 drm_encoder_cleanup(encoder
);
3552 kfree(intel_encoder
);
3555 /* Simple dpms helper for encodres with just one connector, no cloning and only
3556 * one kind of off state. It clamps all !ON modes to fully OFF and changes the
3557 * state of the entire output pipe. */
3558 void intel_encoder_dpms(struct intel_encoder
*encoder
, int mode
)
3560 if (mode
== DRM_MODE_DPMS_ON
) {
3561 encoder
->connectors_active
= true;
3563 intel_crtc_update_dpms(encoder
->base
.crtc
);
3565 encoder
->connectors_active
= false;
3567 intel_crtc_update_dpms(encoder
->base
.crtc
);
3571 /* Cross check the actual hw state with our own modeset state tracking (and it's
3572 * internal consistency). */
3573 static void intel_connector_check_state(struct intel_connector
*connector
)
3575 if (connector
->get_hw_state(connector
)) {
3576 struct intel_encoder
*encoder
= connector
->encoder
;
3577 struct drm_crtc
*crtc
;
3578 bool encoder_enabled
;
3581 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
3582 connector
->base
.base
.id
,
3583 drm_get_connector_name(&connector
->base
));
3585 WARN(connector
->base
.dpms
== DRM_MODE_DPMS_OFF
,
3586 "wrong connector dpms state\n");
3587 WARN(connector
->base
.encoder
!= &encoder
->base
,
3588 "active connector not linked to encoder\n");
3589 WARN(!encoder
->connectors_active
,
3590 "encoder->connectors_active not set\n");
3592 encoder_enabled
= encoder
->get_hw_state(encoder
, &pipe
);
3593 WARN(!encoder_enabled
, "encoder not enabled\n");
3594 if (WARN_ON(!encoder
->base
.crtc
))
3597 crtc
= encoder
->base
.crtc
;
3599 WARN(!crtc
->enabled
, "crtc not enabled\n");
3600 WARN(!to_intel_crtc(crtc
)->active
, "crtc not active\n");
3601 WARN(pipe
!= to_intel_crtc(crtc
)->pipe
,
3602 "encoder active on the wrong pipe\n");
3606 /* Even simpler default implementation, if there's really no special case to
3608 void intel_connector_dpms(struct drm_connector
*connector
, int mode
)
3610 struct intel_encoder
*encoder
= intel_attached_encoder(connector
);
3612 /* All the simple cases only support two dpms states. */
3613 if (mode
!= DRM_MODE_DPMS_ON
)
3614 mode
= DRM_MODE_DPMS_OFF
;
3616 if (mode
== connector
->dpms
)
3619 connector
->dpms
= mode
;
3621 /* Only need to change hw state when actually enabled */
3622 if (encoder
->base
.crtc
)
3623 intel_encoder_dpms(encoder
, mode
);
3625 WARN_ON(encoder
->connectors_active
!= false);
3627 intel_modeset_check_state(connector
->dev
);
3630 /* Simple connector->get_hw_state implementation for encoders that support only
3631 * one connector and no cloning and hence the encoder state determines the state
3632 * of the connector. */
3633 bool intel_connector_get_hw_state(struct intel_connector
*connector
)
3636 struct intel_encoder
*encoder
= connector
->encoder
;
3638 return encoder
->get_hw_state(encoder
, &pipe
);
3641 static bool intel_crtc_mode_fixup(struct drm_crtc
*crtc
,
3642 const struct drm_display_mode
*mode
,
3643 struct drm_display_mode
*adjusted_mode
)
3645 struct drm_device
*dev
= crtc
->dev
;
3647 if (HAS_PCH_SPLIT(dev
)) {
3648 /* FDI link clock is fixed at 2.7G */
3649 if (mode
->clock
* 3 > IRONLAKE_FDI_FREQ
* 4)
3653 /* All interlaced capable intel hw wants timings in frames. Note though
3654 * that intel_lvds_mode_fixup does some funny tricks with the crtc
3655 * timings, so we need to be careful not to clobber these.*/
3656 if (!(adjusted_mode
->private_flags
& INTEL_MODE_CRTC_TIMINGS_SET
))
3657 drm_mode_set_crtcinfo(adjusted_mode
, 0);
3659 /* WaPruneModeWithIncorrectHsyncOffset: Cantiga+ cannot handle modes
3660 * with a hsync front porch of 0.
3662 if ((INTEL_INFO(dev
)->gen
> 4 || IS_G4X(dev
)) &&
3663 adjusted_mode
->hsync_start
== adjusted_mode
->hdisplay
)
3669 static int valleyview_get_display_clock_speed(struct drm_device
*dev
)
3671 return 400000; /* FIXME */
3674 static int i945_get_display_clock_speed(struct drm_device
*dev
)
3679 static int i915_get_display_clock_speed(struct drm_device
*dev
)
3684 static int i9xx_misc_get_display_clock_speed(struct drm_device
*dev
)
3689 static int i915gm_get_display_clock_speed(struct drm_device
*dev
)
3693 pci_read_config_word(dev
->pdev
, GCFGC
, &gcfgc
);
3695 if (gcfgc
& GC_LOW_FREQUENCY_ENABLE
)
3698 switch (gcfgc
& GC_DISPLAY_CLOCK_MASK
) {
3699 case GC_DISPLAY_CLOCK_333_MHZ
:
3702 case GC_DISPLAY_CLOCK_190_200_MHZ
:
3708 static int i865_get_display_clock_speed(struct drm_device
*dev
)
3713 static int i855_get_display_clock_speed(struct drm_device
*dev
)
3716 /* Assume that the hardware is in the high speed state. This
3717 * should be the default.
3719 switch (hpllcc
& GC_CLOCK_CONTROL_MASK
) {
3720 case GC_CLOCK_133_200
:
3721 case GC_CLOCK_100_200
:
3723 case GC_CLOCK_166_250
:
3725 case GC_CLOCK_100_133
:
3729 /* Shouldn't happen */
3733 static int i830_get_display_clock_speed(struct drm_device
*dev
)
3747 fdi_reduce_ratio(u32
*num
, u32
*den
)
3749 while (*num
> 0xffffff || *den
> 0xffffff) {
3756 ironlake_compute_m_n(int bits_per_pixel
, int nlanes
, int pixel_clock
,
3757 int link_clock
, struct fdi_m_n
*m_n
)
3759 m_n
->tu
= 64; /* default size */
3761 /* BUG_ON(pixel_clock > INT_MAX / 36); */
3762 m_n
->gmch_m
= bits_per_pixel
* pixel_clock
;
3763 m_n
->gmch_n
= link_clock
* nlanes
* 8;
3764 fdi_reduce_ratio(&m_n
->gmch_m
, &m_n
->gmch_n
);
3766 m_n
->link_m
= pixel_clock
;
3767 m_n
->link_n
= link_clock
;
3768 fdi_reduce_ratio(&m_n
->link_m
, &m_n
->link_n
);
3771 static inline bool intel_panel_use_ssc(struct drm_i915_private
*dev_priv
)
3773 if (i915_panel_use_ssc
>= 0)
3774 return i915_panel_use_ssc
!= 0;
3775 return dev_priv
->lvds_use_ssc
3776 && !(dev_priv
->quirks
& QUIRK_LVDS_SSC_DISABLE
);
3780 * intel_choose_pipe_bpp_dither - figure out what color depth the pipe should send
3781 * @crtc: CRTC structure
3782 * @mode: requested mode
3784 * A pipe may be connected to one or more outputs. Based on the depth of the
3785 * attached framebuffer, choose a good color depth to use on the pipe.
3787 * If possible, match the pipe depth to the fb depth. In some cases, this
3788 * isn't ideal, because the connected output supports a lesser or restricted
3789 * set of depths. Resolve that here:
3790 * LVDS typically supports only 6bpc, so clamp down in that case
3791 * HDMI supports only 8bpc or 12bpc, so clamp to 8bpc with dither for 10bpc
3792 * Displays may support a restricted set as well, check EDID and clamp as
3794 * DP may want to dither down to 6bpc to fit larger modes
3797 * Dithering requirement (i.e. false if display bpc and pipe bpc match,
3798 * true if they don't match).
3800 static bool intel_choose_pipe_bpp_dither(struct drm_crtc
*crtc
,
3801 struct drm_framebuffer
*fb
,
3802 unsigned int *pipe_bpp
,
3803 struct drm_display_mode
*mode
)
3805 struct drm_device
*dev
= crtc
->dev
;
3806 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3807 struct drm_connector
*connector
;
3808 struct intel_encoder
*intel_encoder
;
3809 unsigned int display_bpc
= UINT_MAX
, bpc
;
3811 /* Walk the encoders & connectors on this crtc, get min bpc */
3812 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
) {
3814 if (intel_encoder
->type
== INTEL_OUTPUT_LVDS
) {
3815 unsigned int lvds_bpc
;
3817 if ((I915_READ(PCH_LVDS
) & LVDS_A3_POWER_MASK
) ==
3823 if (lvds_bpc
< display_bpc
) {
3824 DRM_DEBUG_KMS("clamping display bpc (was %d) to LVDS (%d)\n", display_bpc
, lvds_bpc
);
3825 display_bpc
= lvds_bpc
;
3830 /* Not one of the known troublemakers, check the EDID */
3831 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
3833 if (connector
->encoder
!= &intel_encoder
->base
)
3836 /* Don't use an invalid EDID bpc value */
3837 if (connector
->display_info
.bpc
&&
3838 connector
->display_info
.bpc
< display_bpc
) {
3839 DRM_DEBUG_KMS("clamping display bpc (was %d) to EDID reported max of %d\n", display_bpc
, connector
->display_info
.bpc
);
3840 display_bpc
= connector
->display_info
.bpc
;
3844 if (intel_encoder
->type
== INTEL_OUTPUT_EDP
) {
3845 /* Use VBT settings if we have an eDP panel */
3846 unsigned int edp_bpc
= dev_priv
->edp
.bpp
/ 3;
3848 if (edp_bpc
&& edp_bpc
< display_bpc
) {
3849 DRM_DEBUG_KMS("clamping display bpc (was %d) to eDP (%d)\n", display_bpc
, edp_bpc
);
3850 display_bpc
= edp_bpc
;
3856 * HDMI is either 12 or 8, so if the display lets 10bpc sneak
3857 * through, clamp it down. (Note: >12bpc will be caught below.)
3859 if (intel_encoder
->type
== INTEL_OUTPUT_HDMI
) {
3860 if (display_bpc
> 8 && display_bpc
< 12) {
3861 DRM_DEBUG_KMS("forcing bpc to 12 for HDMI\n");
3864 DRM_DEBUG_KMS("forcing bpc to 8 for HDMI\n");
3870 if (mode
->private_flags
& INTEL_MODE_DP_FORCE_6BPC
) {
3871 DRM_DEBUG_KMS("Dithering DP to 6bpc\n");
3876 * We could just drive the pipe at the highest bpc all the time and
3877 * enable dithering as needed, but that costs bandwidth. So choose
3878 * the minimum value that expresses the full color range of the fb but
3879 * also stays within the max display bpc discovered above.
3882 switch (fb
->depth
) {
3884 bpc
= 8; /* since we go through a colormap */
3888 bpc
= 6; /* min is 18bpp */
3900 DRM_DEBUG("unsupported depth, assuming 24 bits\n");
3901 bpc
= min((unsigned int)8, display_bpc
);
3905 display_bpc
= min(display_bpc
, bpc
);
3907 DRM_DEBUG_KMS("setting pipe bpc to %d (max display bpc %d)\n",
3910 *pipe_bpp
= display_bpc
* 3;
3912 return display_bpc
!= bpc
;
3915 static int vlv_get_refclk(struct drm_crtc
*crtc
)
3917 struct drm_device
*dev
= crtc
->dev
;
3918 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3919 int refclk
= 27000; /* for DP & HDMI */
3921 return 100000; /* only one validated so far */
3923 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_ANALOG
)) {
3925 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
3926 if (intel_panel_use_ssc(dev_priv
))
3930 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_EDP
)) {
3937 static int i9xx_get_refclk(struct drm_crtc
*crtc
, int num_connectors
)
3939 struct drm_device
*dev
= crtc
->dev
;
3940 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3943 if (IS_VALLEYVIEW(dev
)) {
3944 refclk
= vlv_get_refclk(crtc
);
3945 } else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) &&
3946 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2) {
3947 refclk
= dev_priv
->lvds_ssc_freq
* 1000;
3948 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
3950 } else if (!IS_GEN2(dev
)) {
3959 static void i9xx_adjust_sdvo_tv_clock(struct drm_display_mode
*adjusted_mode
,
3960 intel_clock_t
*clock
)
3962 /* SDVO TV has fixed PLL values depend on its clock range,
3963 this mirrors vbios setting. */
3964 if (adjusted_mode
->clock
>= 100000
3965 && adjusted_mode
->clock
< 140500) {
3971 } else if (adjusted_mode
->clock
>= 140500
3972 && adjusted_mode
->clock
<= 200000) {
3981 static void i9xx_update_pll_dividers(struct drm_crtc
*crtc
,
3982 intel_clock_t
*clock
,
3983 intel_clock_t
*reduced_clock
)
3985 struct drm_device
*dev
= crtc
->dev
;
3986 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
3987 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
3988 int pipe
= intel_crtc
->pipe
;
3991 if (IS_PINEVIEW(dev
)) {
3992 fp
= (1 << clock
->n
) << 16 | clock
->m1
<< 8 | clock
->m2
;
3994 fp2
= (1 << reduced_clock
->n
) << 16 |
3995 reduced_clock
->m1
<< 8 | reduced_clock
->m2
;
3997 fp
= clock
->n
<< 16 | clock
->m1
<< 8 | clock
->m2
;
3999 fp2
= reduced_clock
->n
<< 16 | reduced_clock
->m1
<< 8 |
4003 I915_WRITE(FP0(pipe
), fp
);
4005 intel_crtc
->lowfreq_avail
= false;
4006 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) &&
4007 reduced_clock
&& i915_powersave
) {
4008 I915_WRITE(FP1(pipe
), fp2
);
4009 intel_crtc
->lowfreq_avail
= true;
4011 I915_WRITE(FP1(pipe
), fp
);
4015 static void intel_update_lvds(struct drm_crtc
*crtc
, intel_clock_t
*clock
,
4016 struct drm_display_mode
*adjusted_mode
)
4018 struct drm_device
*dev
= crtc
->dev
;
4019 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4020 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4021 int pipe
= intel_crtc
->pipe
;
4024 temp
= I915_READ(LVDS
);
4025 temp
|= LVDS_PORT_EN
| LVDS_A0A2_CLKA_POWER_UP
;
4027 temp
|= LVDS_PIPEB_SELECT
;
4029 temp
&= ~LVDS_PIPEB_SELECT
;
4031 /* set the corresponsding LVDS_BORDER bit */
4032 temp
|= dev_priv
->lvds_border_bits
;
4033 /* Set the B0-B3 data pairs corresponding to whether we're going to
4034 * set the DPLLs for dual-channel mode or not.
4037 temp
|= LVDS_B0B3_POWER_UP
| LVDS_CLKB_POWER_UP
;
4039 temp
&= ~(LVDS_B0B3_POWER_UP
| LVDS_CLKB_POWER_UP
);
4041 /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP)
4042 * appropriately here, but we need to look more thoroughly into how
4043 * panels behave in the two modes.
4045 /* set the dithering flag on LVDS as needed */
4046 if (INTEL_INFO(dev
)->gen
>= 4) {
4047 if (dev_priv
->lvds_dither
)
4048 temp
|= LVDS_ENABLE_DITHER
;
4050 temp
&= ~LVDS_ENABLE_DITHER
;
4052 temp
&= ~(LVDS_HSYNC_POLARITY
| LVDS_VSYNC_POLARITY
);
4053 if (adjusted_mode
->flags
& DRM_MODE_FLAG_NHSYNC
)
4054 temp
|= LVDS_HSYNC_POLARITY
;
4055 if (adjusted_mode
->flags
& DRM_MODE_FLAG_NVSYNC
)
4056 temp
|= LVDS_VSYNC_POLARITY
;
4057 I915_WRITE(LVDS
, temp
);
4060 static void vlv_update_pll(struct drm_crtc
*crtc
,
4061 struct drm_display_mode
*mode
,
4062 struct drm_display_mode
*adjusted_mode
,
4063 intel_clock_t
*clock
, intel_clock_t
*reduced_clock
,
4064 int refclk
, int num_connectors
)
4066 struct drm_device
*dev
= crtc
->dev
;
4067 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4068 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4069 int pipe
= intel_crtc
->pipe
;
4070 u32 dpll
, mdiv
, pdiv
;
4071 u32 bestn
, bestm1
, bestm2
, bestp1
, bestp2
;
4074 is_hdmi
= intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
);
4082 /* Enable DPIO clock input */
4083 dpll
= DPLL_EXT_BUFFER_ENABLE_VLV
| DPLL_REFA_CLK_ENABLE_VLV
|
4084 DPLL_VGA_MODE_DIS
| DPLL_INTEGRATED_CLOCK_VLV
;
4085 I915_WRITE(DPLL(pipe
), dpll
);
4086 POSTING_READ(DPLL(pipe
));
4088 mdiv
= ((bestm1
<< DPIO_M1DIV_SHIFT
) | (bestm2
& DPIO_M2DIV_MASK
));
4089 mdiv
|= ((bestp1
<< DPIO_P1_SHIFT
) | (bestp2
<< DPIO_P2_SHIFT
));
4090 mdiv
|= ((bestn
<< DPIO_N_SHIFT
));
4091 mdiv
|= (1 << DPIO_POST_DIV_SHIFT
);
4092 mdiv
|= (1 << DPIO_K_SHIFT
);
4093 mdiv
|= DPIO_ENABLE_CALIBRATION
;
4094 intel_dpio_write(dev_priv
, DPIO_DIV(pipe
), mdiv
);
4096 intel_dpio_write(dev_priv
, DPIO_CORE_CLK(pipe
), 0x01000000);
4098 pdiv
= DPIO_REFSEL_OVERRIDE
| (5 << DPIO_PLL_MODESEL_SHIFT
) |
4099 (3 << DPIO_BIAS_CURRENT_CTL_SHIFT
) | (1<<20) |
4100 (8 << DPIO_DRIVER_CTL_SHIFT
) | (5 << DPIO_CLK_BIAS_CTL_SHIFT
);
4101 intel_dpio_write(dev_priv
, DPIO_REFSFR(pipe
), pdiv
);
4103 intel_dpio_write(dev_priv
, DPIO_LFP_COEFF(pipe
), 0x009f0051);
4105 dpll
|= DPLL_VCO_ENABLE
;
4106 I915_WRITE(DPLL(pipe
), dpll
);
4107 POSTING_READ(DPLL(pipe
));
4108 if (wait_for(((I915_READ(DPLL(pipe
)) & DPLL_LOCK_VLV
) == DPLL_LOCK_VLV
), 1))
4109 DRM_ERROR("DPLL %d failed to lock\n", pipe
);
4112 u32 temp
= intel_mode_get_pixel_multiplier(adjusted_mode
);
4115 temp
= (temp
- 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
4119 I915_WRITE(DPLL_MD(pipe
), temp
);
4120 POSTING_READ(DPLL_MD(pipe
));
4123 intel_dpio_write(dev_priv
, DPIO_FASTCLK_DISABLE
, 0x641); /* ??? */
4126 static void i9xx_update_pll(struct drm_crtc
*crtc
,
4127 struct drm_display_mode
*mode
,
4128 struct drm_display_mode
*adjusted_mode
,
4129 intel_clock_t
*clock
, intel_clock_t
*reduced_clock
,
4132 struct drm_device
*dev
= crtc
->dev
;
4133 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4134 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4135 int pipe
= intel_crtc
->pipe
;
4139 is_sdvo
= intel_pipe_has_type(crtc
, INTEL_OUTPUT_SDVO
) ||
4140 intel_pipe_has_type(crtc
, INTEL_OUTPUT_HDMI
);
4142 dpll
= DPLL_VGA_MODE_DIS
;
4144 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
4145 dpll
|= DPLLB_MODE_LVDS
;
4147 dpll
|= DPLLB_MODE_DAC_SERIAL
;
4149 int pixel_multiplier
= intel_mode_get_pixel_multiplier(adjusted_mode
);
4150 if (pixel_multiplier
> 1) {
4151 if (IS_I945G(dev
) || IS_I945GM(dev
) || IS_G33(dev
))
4152 dpll
|= (pixel_multiplier
- 1) << SDVO_MULTIPLIER_SHIFT_HIRES
;
4154 dpll
|= DPLL_DVO_HIGH_SPEED
;
4156 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
))
4157 dpll
|= DPLL_DVO_HIGH_SPEED
;
4159 /* compute bitmask from p1 value */
4160 if (IS_PINEVIEW(dev
))
4161 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
;
4163 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
4164 if (IS_G4X(dev
) && reduced_clock
)
4165 dpll
|= (1 << (reduced_clock
->p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
4167 switch (clock
->p2
) {
4169 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
4172 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
4175 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
4178 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
4181 if (INTEL_INFO(dev
)->gen
>= 4)
4182 dpll
|= (6 << PLL_LOAD_PULSE_PHASE_SHIFT
);
4184 if (is_sdvo
&& intel_pipe_has_type(crtc
, INTEL_OUTPUT_TVOUT
))
4185 dpll
|= PLL_REF_INPUT_TVCLKINBC
;
4186 else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_TVOUT
))
4187 /* XXX: just matching BIOS for now */
4188 /* dpll |= PLL_REF_INPUT_TVCLKINBC; */
4190 else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) &&
4191 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
4192 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
4194 dpll
|= PLL_REF_INPUT_DREFCLK
;
4196 dpll
|= DPLL_VCO_ENABLE
;
4197 I915_WRITE(DPLL(pipe
), dpll
& ~DPLL_VCO_ENABLE
);
4198 POSTING_READ(DPLL(pipe
));
4201 /* The LVDS pin pair needs to be on before the DPLLs are enabled.
4202 * This is an exception to the general rule that mode_set doesn't turn
4205 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
4206 intel_update_lvds(crtc
, clock
, adjusted_mode
);
4208 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
))
4209 intel_dp_set_m_n(crtc
, mode
, adjusted_mode
);
4211 I915_WRITE(DPLL(pipe
), dpll
);
4213 /* Wait for the clocks to stabilize. */
4214 POSTING_READ(DPLL(pipe
));
4217 if (INTEL_INFO(dev
)->gen
>= 4) {
4220 temp
= intel_mode_get_pixel_multiplier(adjusted_mode
);
4222 temp
= (temp
- 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT
;
4226 I915_WRITE(DPLL_MD(pipe
), temp
);
4228 /* The pixel multiplier can only be updated once the
4229 * DPLL is enabled and the clocks are stable.
4231 * So write it again.
4233 I915_WRITE(DPLL(pipe
), dpll
);
4237 static void i8xx_update_pll(struct drm_crtc
*crtc
,
4238 struct drm_display_mode
*adjusted_mode
,
4239 intel_clock_t
*clock
,
4242 struct drm_device
*dev
= crtc
->dev
;
4243 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4244 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4245 int pipe
= intel_crtc
->pipe
;
4248 dpll
= DPLL_VGA_MODE_DIS
;
4250 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
)) {
4251 dpll
|= (1 << (clock
->p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
4254 dpll
|= PLL_P1_DIVIDE_BY_TWO
;
4256 dpll
|= (clock
->p1
- 2) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
4258 dpll
|= PLL_P2_DIVIDE_BY_4
;
4261 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_TVOUT
))
4262 /* XXX: just matching BIOS for now */
4263 /* dpll |= PLL_REF_INPUT_TVCLKINBC; */
4265 else if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) &&
4266 intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
4267 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
4269 dpll
|= PLL_REF_INPUT_DREFCLK
;
4271 dpll
|= DPLL_VCO_ENABLE
;
4272 I915_WRITE(DPLL(pipe
), dpll
& ~DPLL_VCO_ENABLE
);
4273 POSTING_READ(DPLL(pipe
));
4276 /* The LVDS pin pair needs to be on before the DPLLs are enabled.
4277 * This is an exception to the general rule that mode_set doesn't turn
4280 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
4281 intel_update_lvds(crtc
, clock
, adjusted_mode
);
4283 I915_WRITE(DPLL(pipe
), dpll
);
4285 /* Wait for the clocks to stabilize. */
4286 POSTING_READ(DPLL(pipe
));
4289 /* The pixel multiplier can only be updated once the
4290 * DPLL is enabled and the clocks are stable.
4292 * So write it again.
4294 I915_WRITE(DPLL(pipe
), dpll
);
4297 static int i9xx_crtc_mode_set(struct drm_crtc
*crtc
,
4298 struct drm_display_mode
*mode
,
4299 struct drm_display_mode
*adjusted_mode
,
4301 struct drm_framebuffer
*fb
)
4303 struct drm_device
*dev
= crtc
->dev
;
4304 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4305 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4306 int pipe
= intel_crtc
->pipe
;
4307 int plane
= intel_crtc
->plane
;
4308 int refclk
, num_connectors
= 0;
4309 intel_clock_t clock
, reduced_clock
;
4310 u32 dspcntr
, pipeconf
, vsyncshift
;
4311 bool ok
, has_reduced_clock
= false, is_sdvo
= false;
4312 bool is_lvds
= false, is_tv
= false, is_dp
= false;
4313 struct intel_encoder
*encoder
;
4314 const intel_limit_t
*limit
;
4317 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
4318 switch (encoder
->type
) {
4319 case INTEL_OUTPUT_LVDS
:
4322 case INTEL_OUTPUT_SDVO
:
4323 case INTEL_OUTPUT_HDMI
:
4325 if (encoder
->needs_tv_clock
)
4328 case INTEL_OUTPUT_TVOUT
:
4331 case INTEL_OUTPUT_DISPLAYPORT
:
4339 refclk
= i9xx_get_refclk(crtc
, num_connectors
);
4342 * Returns a set of divisors for the desired target clock with the given
4343 * refclk, or FALSE. The returned values represent the clock equation:
4344 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
4346 limit
= intel_limit(crtc
, refclk
);
4347 ok
= limit
->find_pll(limit
, crtc
, adjusted_mode
->clock
, refclk
, NULL
,
4350 DRM_ERROR("Couldn't find PLL settings for mode!\n");
4354 /* Ensure that the cursor is valid for the new mode before changing... */
4355 intel_crtc_update_cursor(crtc
, true);
4357 if (is_lvds
&& dev_priv
->lvds_downclock_avail
) {
4359 * Ensure we match the reduced clock's P to the target clock.
4360 * If the clocks don't match, we can't switch the display clock
4361 * by using the FP0/FP1. In such case we will disable the LVDS
4362 * downclock feature.
4364 has_reduced_clock
= limit
->find_pll(limit
, crtc
,
4365 dev_priv
->lvds_downclock
,
4371 if (is_sdvo
&& is_tv
)
4372 i9xx_adjust_sdvo_tv_clock(adjusted_mode
, &clock
);
4374 i9xx_update_pll_dividers(crtc
, &clock
, has_reduced_clock
?
4375 &reduced_clock
: NULL
);
4378 i8xx_update_pll(crtc
, adjusted_mode
, &clock
, num_connectors
);
4379 else if (IS_VALLEYVIEW(dev
))
4380 vlv_update_pll(crtc
, mode
,adjusted_mode
, &clock
, NULL
,
4381 refclk
, num_connectors
);
4383 i9xx_update_pll(crtc
, mode
, adjusted_mode
, &clock
,
4384 has_reduced_clock
? &reduced_clock
: NULL
,
4387 /* setup pipeconf */
4388 pipeconf
= I915_READ(PIPECONF(pipe
));
4390 /* Set up the display plane register */
4391 dspcntr
= DISPPLANE_GAMMA_ENABLE
;
4394 dspcntr
&= ~DISPPLANE_SEL_PIPE_MASK
;
4396 dspcntr
|= DISPPLANE_SEL_PIPE_B
;
4398 if (pipe
== 0 && INTEL_INFO(dev
)->gen
< 4) {
4399 /* Enable pixel doubling when the dot clock is > 90% of the (display)
4402 * XXX: No double-wide on 915GM pipe B. Is that the only reason for the
4406 dev_priv
->display
.get_display_clock_speed(dev
) * 9 / 10)
4407 pipeconf
|= PIPECONF_DOUBLE_WIDE
;
4409 pipeconf
&= ~PIPECONF_DOUBLE_WIDE
;
4412 /* default to 8bpc */
4413 pipeconf
&= ~(PIPECONF_BPP_MASK
| PIPECONF_DITHER_EN
);
4415 if (adjusted_mode
->private_flags
& INTEL_MODE_DP_FORCE_6BPC
) {
4416 pipeconf
|= PIPECONF_BPP_6
|
4417 PIPECONF_DITHER_EN
|
4418 PIPECONF_DITHER_TYPE_SP
;
4422 DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe
== 0 ? 'A' : 'B');
4423 drm_mode_debug_printmodeline(mode
);
4425 if (HAS_PIPE_CXSR(dev
)) {
4426 if (intel_crtc
->lowfreq_avail
) {
4427 DRM_DEBUG_KMS("enabling CxSR downclocking\n");
4428 pipeconf
|= PIPECONF_CXSR_DOWNCLOCK
;
4430 DRM_DEBUG_KMS("disabling CxSR downclocking\n");
4431 pipeconf
&= ~PIPECONF_CXSR_DOWNCLOCK
;
4435 pipeconf
&= ~PIPECONF_INTERLACE_MASK
;
4436 if (!IS_GEN2(dev
) &&
4437 adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
) {
4438 pipeconf
|= PIPECONF_INTERLACE_W_FIELD_INDICATION
;
4439 /* the chip adds 2 halflines automatically */
4440 adjusted_mode
->crtc_vtotal
-= 1;
4441 adjusted_mode
->crtc_vblank_end
-= 1;
4442 vsyncshift
= adjusted_mode
->crtc_hsync_start
4443 - adjusted_mode
->crtc_htotal
/2;
4445 pipeconf
|= PIPECONF_PROGRESSIVE
;
4450 I915_WRITE(VSYNCSHIFT(pipe
), vsyncshift
);
4452 I915_WRITE(HTOTAL(pipe
),
4453 (adjusted_mode
->crtc_hdisplay
- 1) |
4454 ((adjusted_mode
->crtc_htotal
- 1) << 16));
4455 I915_WRITE(HBLANK(pipe
),
4456 (adjusted_mode
->crtc_hblank_start
- 1) |
4457 ((adjusted_mode
->crtc_hblank_end
- 1) << 16));
4458 I915_WRITE(HSYNC(pipe
),
4459 (adjusted_mode
->crtc_hsync_start
- 1) |
4460 ((adjusted_mode
->crtc_hsync_end
- 1) << 16));
4462 I915_WRITE(VTOTAL(pipe
),
4463 (adjusted_mode
->crtc_vdisplay
- 1) |
4464 ((adjusted_mode
->crtc_vtotal
- 1) << 16));
4465 I915_WRITE(VBLANK(pipe
),
4466 (adjusted_mode
->crtc_vblank_start
- 1) |
4467 ((adjusted_mode
->crtc_vblank_end
- 1) << 16));
4468 I915_WRITE(VSYNC(pipe
),
4469 (adjusted_mode
->crtc_vsync_start
- 1) |
4470 ((adjusted_mode
->crtc_vsync_end
- 1) << 16));
4472 /* pipesrc and dspsize control the size that is scaled from,
4473 * which should always be the user's requested size.
4475 I915_WRITE(DSPSIZE(plane
),
4476 ((mode
->vdisplay
- 1) << 16) |
4477 (mode
->hdisplay
- 1));
4478 I915_WRITE(DSPPOS(plane
), 0);
4479 I915_WRITE(PIPESRC(pipe
),
4480 ((mode
->hdisplay
- 1) << 16) | (mode
->vdisplay
- 1));
4482 I915_WRITE(PIPECONF(pipe
), pipeconf
);
4483 POSTING_READ(PIPECONF(pipe
));
4484 intel_enable_pipe(dev_priv
, pipe
, false);
4486 intel_wait_for_vblank(dev
, pipe
);
4488 I915_WRITE(DSPCNTR(plane
), dspcntr
);
4489 POSTING_READ(DSPCNTR(plane
));
4491 ret
= intel_pipe_set_base(crtc
, x
, y
, fb
);
4493 intel_update_watermarks(dev
);
4499 * Initialize reference clocks when the driver loads
4501 void ironlake_init_pch_refclk(struct drm_device
*dev
)
4503 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4504 struct drm_mode_config
*mode_config
= &dev
->mode_config
;
4505 struct intel_encoder
*encoder
;
4507 bool has_lvds
= false;
4508 bool has_cpu_edp
= false;
4509 bool has_pch_edp
= false;
4510 bool has_panel
= false;
4511 bool has_ck505
= false;
4512 bool can_ssc
= false;
4514 /* We need to take the global config into account */
4515 list_for_each_entry(encoder
, &mode_config
->encoder_list
,
4517 switch (encoder
->type
) {
4518 case INTEL_OUTPUT_LVDS
:
4522 case INTEL_OUTPUT_EDP
:
4524 if (intel_encoder_is_pch_edp(&encoder
->base
))
4532 if (HAS_PCH_IBX(dev
)) {
4533 has_ck505
= dev_priv
->display_clock_mode
;
4534 can_ssc
= has_ck505
;
4540 DRM_DEBUG_KMS("has_panel %d has_lvds %d has_pch_edp %d has_cpu_edp %d has_ck505 %d\n",
4541 has_panel
, has_lvds
, has_pch_edp
, has_cpu_edp
,
4544 /* Ironlake: try to setup display ref clock before DPLL
4545 * enabling. This is only under driver's control after
4546 * PCH B stepping, previous chipset stepping should be
4547 * ignoring this setting.
4549 temp
= I915_READ(PCH_DREF_CONTROL
);
4550 /* Always enable nonspread source */
4551 temp
&= ~DREF_NONSPREAD_SOURCE_MASK
;
4554 temp
|= DREF_NONSPREAD_CK505_ENABLE
;
4556 temp
|= DREF_NONSPREAD_SOURCE_ENABLE
;
4559 temp
&= ~DREF_SSC_SOURCE_MASK
;
4560 temp
|= DREF_SSC_SOURCE_ENABLE
;
4562 /* SSC must be turned on before enabling the CPU output */
4563 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
4564 DRM_DEBUG_KMS("Using SSC on panel\n");
4565 temp
|= DREF_SSC1_ENABLE
;
4567 temp
&= ~DREF_SSC1_ENABLE
;
4569 /* Get SSC going before enabling the outputs */
4570 I915_WRITE(PCH_DREF_CONTROL
, temp
);
4571 POSTING_READ(PCH_DREF_CONTROL
);
4574 temp
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
4576 /* Enable CPU source on CPU attached eDP */
4578 if (intel_panel_use_ssc(dev_priv
) && can_ssc
) {
4579 DRM_DEBUG_KMS("Using SSC on eDP\n");
4580 temp
|= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD
;
4583 temp
|= DREF_CPU_SOURCE_OUTPUT_NONSPREAD
;
4585 temp
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
4587 I915_WRITE(PCH_DREF_CONTROL
, temp
);
4588 POSTING_READ(PCH_DREF_CONTROL
);
4591 DRM_DEBUG_KMS("Disabling SSC entirely\n");
4593 temp
&= ~DREF_CPU_SOURCE_OUTPUT_MASK
;
4595 /* Turn off CPU output */
4596 temp
|= DREF_CPU_SOURCE_OUTPUT_DISABLE
;
4598 I915_WRITE(PCH_DREF_CONTROL
, temp
);
4599 POSTING_READ(PCH_DREF_CONTROL
);
4602 /* Turn off the SSC source */
4603 temp
&= ~DREF_SSC_SOURCE_MASK
;
4604 temp
|= DREF_SSC_SOURCE_DISABLE
;
4607 temp
&= ~ DREF_SSC1_ENABLE
;
4609 I915_WRITE(PCH_DREF_CONTROL
, temp
);
4610 POSTING_READ(PCH_DREF_CONTROL
);
4615 static int ironlake_get_refclk(struct drm_crtc
*crtc
)
4617 struct drm_device
*dev
= crtc
->dev
;
4618 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4619 struct intel_encoder
*encoder
;
4620 struct intel_encoder
*edp_encoder
= NULL
;
4621 int num_connectors
= 0;
4622 bool is_lvds
= false;
4624 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
4625 switch (encoder
->type
) {
4626 case INTEL_OUTPUT_LVDS
:
4629 case INTEL_OUTPUT_EDP
:
4630 edp_encoder
= encoder
;
4636 if (is_lvds
&& intel_panel_use_ssc(dev_priv
) && num_connectors
< 2) {
4637 DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
4638 dev_priv
->lvds_ssc_freq
);
4639 return dev_priv
->lvds_ssc_freq
* 1000;
4645 static void ironlake_set_pipeconf(struct drm_crtc
*crtc
,
4646 struct drm_display_mode
*adjusted_mode
,
4649 struct drm_i915_private
*dev_priv
= crtc
->dev
->dev_private
;
4650 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4651 int pipe
= intel_crtc
->pipe
;
4654 val
= I915_READ(PIPECONF(pipe
));
4656 val
&= ~PIPE_BPC_MASK
;
4657 switch (intel_crtc
->bpp
) {
4675 val
&= ~(PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_MASK
);
4677 val
|= (PIPECONF_DITHER_EN
| PIPECONF_DITHER_TYPE_SP
);
4679 val
&= ~PIPECONF_INTERLACE_MASK
;
4680 if (adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
)
4681 val
|= PIPECONF_INTERLACED_ILK
;
4683 val
|= PIPECONF_PROGRESSIVE
;
4685 I915_WRITE(PIPECONF(pipe
), val
);
4686 POSTING_READ(PIPECONF(pipe
));
4689 static bool ironlake_compute_clocks(struct drm_crtc
*crtc
,
4690 struct drm_display_mode
*adjusted_mode
,
4691 intel_clock_t
*clock
,
4692 bool *has_reduced_clock
,
4693 intel_clock_t
*reduced_clock
)
4695 struct drm_device
*dev
= crtc
->dev
;
4696 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4697 struct intel_encoder
*intel_encoder
;
4699 const intel_limit_t
*limit
;
4700 bool ret
, is_sdvo
= false, is_tv
= false, is_lvds
= false;
4702 for_each_encoder_on_crtc(dev
, crtc
, intel_encoder
) {
4703 switch (intel_encoder
->type
) {
4704 case INTEL_OUTPUT_LVDS
:
4707 case INTEL_OUTPUT_SDVO
:
4708 case INTEL_OUTPUT_HDMI
:
4710 if (intel_encoder
->needs_tv_clock
)
4713 case INTEL_OUTPUT_TVOUT
:
4719 refclk
= ironlake_get_refclk(crtc
);
4722 * Returns a set of divisors for the desired target clock with the given
4723 * refclk, or FALSE. The returned values represent the clock equation:
4724 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
4726 limit
= intel_limit(crtc
, refclk
);
4727 ret
= limit
->find_pll(limit
, crtc
, adjusted_mode
->clock
, refclk
, NULL
,
4732 if (is_lvds
&& dev_priv
->lvds_downclock_avail
) {
4734 * Ensure we match the reduced clock's P to the target clock.
4735 * If the clocks don't match, we can't switch the display clock
4736 * by using the FP0/FP1. In such case we will disable the LVDS
4737 * downclock feature.
4739 *has_reduced_clock
= limit
->find_pll(limit
, crtc
,
4740 dev_priv
->lvds_downclock
,
4746 if (is_sdvo
&& is_tv
)
4747 i9xx_adjust_sdvo_tv_clock(adjusted_mode
, clock
);
4752 static int ironlake_crtc_mode_set(struct drm_crtc
*crtc
,
4753 struct drm_display_mode
*mode
,
4754 struct drm_display_mode
*adjusted_mode
,
4756 struct drm_framebuffer
*fb
)
4758 struct drm_device
*dev
= crtc
->dev
;
4759 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
4760 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
4761 int pipe
= intel_crtc
->pipe
;
4762 int plane
= intel_crtc
->plane
;
4763 int num_connectors
= 0;
4764 intel_clock_t clock
, reduced_clock
;
4765 u32 dpll
, fp
= 0, fp2
= 0;
4766 bool ok
, has_reduced_clock
= false, is_sdvo
= false;
4767 bool is_crt
= false, is_lvds
= false, is_tv
= false, is_dp
= false;
4768 struct intel_encoder
*encoder
, *edp_encoder
= NULL
;
4770 struct fdi_m_n m_n
= {0};
4772 int target_clock
, pixel_multiplier
, lane
, link_bw
, factor
;
4773 unsigned int pipe_bpp
;
4775 bool is_cpu_edp
= false, is_pch_edp
= false;
4777 for_each_encoder_on_crtc(dev
, crtc
, encoder
) {
4778 switch (encoder
->type
) {
4779 case INTEL_OUTPUT_LVDS
:
4782 case INTEL_OUTPUT_SDVO
:
4783 case INTEL_OUTPUT_HDMI
:
4785 if (encoder
->needs_tv_clock
)
4788 case INTEL_OUTPUT_TVOUT
:
4791 case INTEL_OUTPUT_ANALOG
:
4794 case INTEL_OUTPUT_DISPLAYPORT
:
4797 case INTEL_OUTPUT_EDP
:
4799 if (intel_encoder_is_pch_edp(&encoder
->base
))
4803 edp_encoder
= encoder
;
4810 ok
= ironlake_compute_clocks(crtc
, adjusted_mode
, &clock
,
4811 &has_reduced_clock
, &reduced_clock
);
4813 DRM_ERROR("Couldn't find PLL settings for mode!\n");
4817 /* Ensure that the cursor is valid for the new mode before changing... */
4818 intel_crtc_update_cursor(crtc
, true);
4821 pixel_multiplier
= intel_mode_get_pixel_multiplier(adjusted_mode
);
4823 /* CPU eDP doesn't require FDI link, so just set DP M/N
4824 according to current link config */
4826 intel_edp_link_config(edp_encoder
, &lane
, &link_bw
);
4828 /* FDI is a binary signal running at ~2.7GHz, encoding
4829 * each output octet as 10 bits. The actual frequency
4830 * is stored as a divider into a 100MHz clock, and the
4831 * mode pixel clock is stored in units of 1KHz.
4832 * Hence the bw of each lane in terms of the mode signal
4835 link_bw
= intel_fdi_link_freq(dev
) * MHz(100)/KHz(1)/10;
4838 /* [e]DP over FDI requires target mode clock instead of link clock. */
4840 target_clock
= intel_edp_target_clock(edp_encoder
, mode
);
4842 target_clock
= mode
->clock
;
4844 target_clock
= adjusted_mode
->clock
;
4846 /* determine panel color depth */
4847 dither
= intel_choose_pipe_bpp_dither(crtc
, fb
, &pipe_bpp
,
4849 if (is_lvds
&& dev_priv
->lvds_dither
)
4852 if (pipe_bpp
!= 18 && pipe_bpp
!= 24 && pipe_bpp
!= 30 &&
4854 WARN(1, "intel_choose_pipe_bpp returned invalid value %d\n",
4858 intel_crtc
->bpp
= pipe_bpp
;
4862 * Account for spread spectrum to avoid
4863 * oversubscribing the link. Max center spread
4864 * is 2.5%; use 5% for safety's sake.
4866 u32 bps
= target_clock
* intel_crtc
->bpp
* 21 / 20;
4867 lane
= bps
/ (link_bw
* 8) + 1;
4870 intel_crtc
->fdi_lanes
= lane
;
4872 if (pixel_multiplier
> 1)
4873 link_bw
*= pixel_multiplier
;
4874 ironlake_compute_m_n(intel_crtc
->bpp
, lane
, target_clock
, link_bw
,
4877 fp
= clock
.n
<< 16 | clock
.m1
<< 8 | clock
.m2
;
4878 if (has_reduced_clock
)
4879 fp2
= reduced_clock
.n
<< 16 | reduced_clock
.m1
<< 8 |
4882 /* Enable autotuning of the PLL clock (if permissible) */
4885 if ((intel_panel_use_ssc(dev_priv
) &&
4886 dev_priv
->lvds_ssc_freq
== 100) ||
4887 (I915_READ(PCH_LVDS
) & LVDS_CLKB_POWER_MASK
) == LVDS_CLKB_POWER_UP
)
4889 } else if (is_sdvo
&& is_tv
)
4892 if (clock
.m
< factor
* clock
.n
)
4898 dpll
|= DPLLB_MODE_LVDS
;
4900 dpll
|= DPLLB_MODE_DAC_SERIAL
;
4902 int pixel_multiplier
= intel_mode_get_pixel_multiplier(adjusted_mode
);
4903 if (pixel_multiplier
> 1) {
4904 dpll
|= (pixel_multiplier
- 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT
;
4906 dpll
|= DPLL_DVO_HIGH_SPEED
;
4908 if (is_dp
&& !is_cpu_edp
)
4909 dpll
|= DPLL_DVO_HIGH_SPEED
;
4911 /* compute bitmask from p1 value */
4912 dpll
|= (1 << (clock
.p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
4914 dpll
|= (1 << (clock
.p1
- 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT
;
4918 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
4921 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
4924 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
4927 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
4931 if (is_sdvo
&& is_tv
)
4932 dpll
|= PLL_REF_INPUT_TVCLKINBC
;
4934 /* XXX: just matching BIOS for now */
4935 /* dpll |= PLL_REF_INPUT_TVCLKINBC; */
4937 else if (is_lvds
&& intel_panel_use_ssc(dev_priv
) && num_connectors
< 2)
4938 dpll
|= PLLB_REF_INPUT_SPREADSPECTRUMIN
;
4940 dpll
|= PLL_REF_INPUT_DREFCLK
;
4942 DRM_DEBUG_KMS("Mode for pipe %d:\n", pipe
);
4943 drm_mode_debug_printmodeline(mode
);
4945 /* CPU eDP is the only output that doesn't need a PCH PLL of its own on
4946 * pre-Haswell/LPT generation */
4947 if (HAS_PCH_LPT(dev
)) {
4948 DRM_DEBUG_KMS("LPT detected: no PLL for pipe %d necessary\n",
4950 } else if (!is_cpu_edp
) {
4951 struct intel_pch_pll
*pll
;
4953 pll
= intel_get_pch_pll(intel_crtc
, dpll
, fp
);
4955 DRM_DEBUG_DRIVER("failed to find PLL for pipe %d\n",
4960 intel_put_pch_pll(intel_crtc
);
4962 /* The LVDS pin pair needs to be on before the DPLLs are enabled.
4963 * This is an exception to the general rule that mode_set doesn't turn
4967 temp
= I915_READ(PCH_LVDS
);
4968 temp
|= LVDS_PORT_EN
| LVDS_A0A2_CLKA_POWER_UP
;
4969 if (HAS_PCH_CPT(dev
)) {
4970 temp
&= ~PORT_TRANS_SEL_MASK
;
4971 temp
|= PORT_TRANS_SEL_CPT(pipe
);
4974 temp
|= LVDS_PIPEB_SELECT
;
4976 temp
&= ~LVDS_PIPEB_SELECT
;
4979 /* set the corresponsding LVDS_BORDER bit */
4980 temp
|= dev_priv
->lvds_border_bits
;
4981 /* Set the B0-B3 data pairs corresponding to whether we're going to
4982 * set the DPLLs for dual-channel mode or not.
4985 temp
|= LVDS_B0B3_POWER_UP
| LVDS_CLKB_POWER_UP
;
4987 temp
&= ~(LVDS_B0B3_POWER_UP
| LVDS_CLKB_POWER_UP
);
4989 /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP)
4990 * appropriately here, but we need to look more thoroughly into how
4991 * panels behave in the two modes.
4993 temp
&= ~(LVDS_HSYNC_POLARITY
| LVDS_VSYNC_POLARITY
);
4994 if (adjusted_mode
->flags
& DRM_MODE_FLAG_NHSYNC
)
4995 temp
|= LVDS_HSYNC_POLARITY
;
4996 if (adjusted_mode
->flags
& DRM_MODE_FLAG_NVSYNC
)
4997 temp
|= LVDS_VSYNC_POLARITY
;
4998 I915_WRITE(PCH_LVDS
, temp
);
5001 if (is_dp
&& !is_cpu_edp
) {
5002 intel_dp_set_m_n(crtc
, mode
, adjusted_mode
);
5004 /* For non-DP output, clear any trans DP clock recovery setting.*/
5005 I915_WRITE(TRANSDATA_M1(pipe
), 0);
5006 I915_WRITE(TRANSDATA_N1(pipe
), 0);
5007 I915_WRITE(TRANSDPLINK_M1(pipe
), 0);
5008 I915_WRITE(TRANSDPLINK_N1(pipe
), 0);
5011 if (intel_crtc
->pch_pll
) {
5012 I915_WRITE(intel_crtc
->pch_pll
->pll_reg
, dpll
);
5014 /* Wait for the clocks to stabilize. */
5015 POSTING_READ(intel_crtc
->pch_pll
->pll_reg
);
5018 /* The pixel multiplier can only be updated once the
5019 * DPLL is enabled and the clocks are stable.
5021 * So write it again.
5023 I915_WRITE(intel_crtc
->pch_pll
->pll_reg
, dpll
);
5026 intel_crtc
->lowfreq_avail
= false;
5027 if (intel_crtc
->pch_pll
) {
5028 if (is_lvds
&& has_reduced_clock
&& i915_powersave
) {
5029 I915_WRITE(intel_crtc
->pch_pll
->fp1_reg
, fp2
);
5030 intel_crtc
->lowfreq_avail
= true;
5032 I915_WRITE(intel_crtc
->pch_pll
->fp1_reg
, fp
);
5036 if (adjusted_mode
->flags
& DRM_MODE_FLAG_INTERLACE
) {
5037 /* the chip adds 2 halflines automatically */
5038 adjusted_mode
->crtc_vtotal
-= 1;
5039 adjusted_mode
->crtc_vblank_end
-= 1;
5040 I915_WRITE(VSYNCSHIFT(pipe
),
5041 adjusted_mode
->crtc_hsync_start
5042 - adjusted_mode
->crtc_htotal
/2);
5044 I915_WRITE(VSYNCSHIFT(pipe
), 0);
5047 I915_WRITE(HTOTAL(pipe
),
5048 (adjusted_mode
->crtc_hdisplay
- 1) |
5049 ((adjusted_mode
->crtc_htotal
- 1) << 16));
5050 I915_WRITE(HBLANK(pipe
),
5051 (adjusted_mode
->crtc_hblank_start
- 1) |
5052 ((adjusted_mode
->crtc_hblank_end
- 1) << 16));
5053 I915_WRITE(HSYNC(pipe
),
5054 (adjusted_mode
->crtc_hsync_start
- 1) |
5055 ((adjusted_mode
->crtc_hsync_end
- 1) << 16));
5057 I915_WRITE(VTOTAL(pipe
),
5058 (adjusted_mode
->crtc_vdisplay
- 1) |
5059 ((adjusted_mode
->crtc_vtotal
- 1) << 16));
5060 I915_WRITE(VBLANK(pipe
),
5061 (adjusted_mode
->crtc_vblank_start
- 1) |
5062 ((adjusted_mode
->crtc_vblank_end
- 1) << 16));
5063 I915_WRITE(VSYNC(pipe
),
5064 (adjusted_mode
->crtc_vsync_start
- 1) |
5065 ((adjusted_mode
->crtc_vsync_end
- 1) << 16));
5067 /* pipesrc controls the size that is scaled from, which should
5068 * always be the user's requested size.
5070 I915_WRITE(PIPESRC(pipe
),
5071 ((mode
->hdisplay
- 1) << 16) | (mode
->vdisplay
- 1));
5073 I915_WRITE(PIPE_DATA_M1(pipe
), TU_SIZE(m_n
.tu
) | m_n
.gmch_m
);
5074 I915_WRITE(PIPE_DATA_N1(pipe
), m_n
.gmch_n
);
5075 I915_WRITE(PIPE_LINK_M1(pipe
), m_n
.link_m
);
5076 I915_WRITE(PIPE_LINK_N1(pipe
), m_n
.link_n
);
5079 ironlake_set_pll_edp(crtc
, adjusted_mode
->clock
);
5081 ironlake_set_pipeconf(crtc
, adjusted_mode
, dither
);
5083 intel_wait_for_vblank(dev
, pipe
);
5085 /* Set up the display plane register */
5086 I915_WRITE(DSPCNTR(plane
), DISPPLANE_GAMMA_ENABLE
);
5087 POSTING_READ(DSPCNTR(plane
));
5089 ret
= intel_pipe_set_base(crtc
, x
, y
, fb
);
5091 intel_update_watermarks(dev
);
5093 intel_update_linetime_watermarks(dev
, pipe
, adjusted_mode
);
5098 static int intel_crtc_mode_set(struct drm_crtc
*crtc
,
5099 struct drm_display_mode
*mode
,
5100 struct drm_display_mode
*adjusted_mode
,
5102 struct drm_framebuffer
*fb
)
5104 struct drm_device
*dev
= crtc
->dev
;
5105 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5106 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5107 int pipe
= intel_crtc
->pipe
;
5110 drm_vblank_pre_modeset(dev
, pipe
);
5112 ret
= dev_priv
->display
.crtc_mode_set(crtc
, mode
, adjusted_mode
,
5114 drm_vblank_post_modeset(dev
, pipe
);
5119 static bool intel_eld_uptodate(struct drm_connector
*connector
,
5120 int reg_eldv
, uint32_t bits_eldv
,
5121 int reg_elda
, uint32_t bits_elda
,
5124 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
5125 uint8_t *eld
= connector
->eld
;
5128 i
= I915_READ(reg_eldv
);
5137 i
= I915_READ(reg_elda
);
5139 I915_WRITE(reg_elda
, i
);
5141 for (i
= 0; i
< eld
[2]; i
++)
5142 if (I915_READ(reg_edid
) != *((uint32_t *)eld
+ i
))
5148 static void g4x_write_eld(struct drm_connector
*connector
,
5149 struct drm_crtc
*crtc
)
5151 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
5152 uint8_t *eld
= connector
->eld
;
5157 i
= I915_READ(G4X_AUD_VID_DID
);
5159 if (i
== INTEL_AUDIO_DEVBLC
|| i
== INTEL_AUDIO_DEVCL
)
5160 eldv
= G4X_ELDV_DEVCL_DEVBLC
;
5162 eldv
= G4X_ELDV_DEVCTG
;
5164 if (intel_eld_uptodate(connector
,
5165 G4X_AUD_CNTL_ST
, eldv
,
5166 G4X_AUD_CNTL_ST
, G4X_ELD_ADDR
,
5167 G4X_HDMIW_HDMIEDID
))
5170 i
= I915_READ(G4X_AUD_CNTL_ST
);
5171 i
&= ~(eldv
| G4X_ELD_ADDR
);
5172 len
= (i
>> 9) & 0x1f; /* ELD buffer size */
5173 I915_WRITE(G4X_AUD_CNTL_ST
, i
);
5178 len
= min_t(uint8_t, eld
[2], len
);
5179 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
5180 for (i
= 0; i
< len
; i
++)
5181 I915_WRITE(G4X_HDMIW_HDMIEDID
, *((uint32_t *)eld
+ i
));
5183 i
= I915_READ(G4X_AUD_CNTL_ST
);
5185 I915_WRITE(G4X_AUD_CNTL_ST
, i
);
5188 static void haswell_write_eld(struct drm_connector
*connector
,
5189 struct drm_crtc
*crtc
)
5191 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
5192 uint8_t *eld
= connector
->eld
;
5193 struct drm_device
*dev
= crtc
->dev
;
5197 int pipe
= to_intel_crtc(crtc
)->pipe
;
5200 int hdmiw_hdmiedid
= HSW_AUD_EDID_DATA(pipe
);
5201 int aud_cntl_st
= HSW_AUD_DIP_ELD_CTRL(pipe
);
5202 int aud_config
= HSW_AUD_CFG(pipe
);
5203 int aud_cntrl_st2
= HSW_AUD_PIN_ELD_CP_VLD
;
5206 DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n");
5208 /* Audio output enable */
5209 DRM_DEBUG_DRIVER("HDMI audio: enable codec\n");
5210 tmp
= I915_READ(aud_cntrl_st2
);
5211 tmp
|= (AUDIO_OUTPUT_ENABLE_A
<< (pipe
* 4));
5212 I915_WRITE(aud_cntrl_st2
, tmp
);
5214 /* Wait for 1 vertical blank */
5215 intel_wait_for_vblank(dev
, pipe
);
5217 /* Set ELD valid state */
5218 tmp
= I915_READ(aud_cntrl_st2
);
5219 DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%8x\n", tmp
);
5220 tmp
|= (AUDIO_ELD_VALID_A
<< (pipe
* 4));
5221 I915_WRITE(aud_cntrl_st2
, tmp
);
5222 tmp
= I915_READ(aud_cntrl_st2
);
5223 DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%8x\n", tmp
);
5225 /* Enable HDMI mode */
5226 tmp
= I915_READ(aud_config
);
5227 DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%8x\n", tmp
);
5228 /* clear N_programing_enable and N_value_index */
5229 tmp
&= ~(AUD_CONFIG_N_VALUE_INDEX
| AUD_CONFIG_N_PROG_ENABLE
);
5230 I915_WRITE(aud_config
, tmp
);
5232 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe
));
5234 eldv
= AUDIO_ELD_VALID_A
<< (pipe
* 4);
5236 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
)) {
5237 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
5238 eld
[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
5239 I915_WRITE(aud_config
, AUD_CONFIG_N_VALUE_INDEX
); /* 0x1 = DP */
5241 I915_WRITE(aud_config
, 0);
5243 if (intel_eld_uptodate(connector
,
5244 aud_cntrl_st2
, eldv
,
5245 aud_cntl_st
, IBX_ELD_ADDRESS
,
5249 i
= I915_READ(aud_cntrl_st2
);
5251 I915_WRITE(aud_cntrl_st2
, i
);
5256 i
= I915_READ(aud_cntl_st
);
5257 i
&= ~IBX_ELD_ADDRESS
;
5258 I915_WRITE(aud_cntl_st
, i
);
5259 i
= (i
>> 29) & DIP_PORT_SEL_MASK
; /* DIP_Port_Select, 0x1 = PortB */
5260 DRM_DEBUG_DRIVER("port num:%d\n", i
);
5262 len
= min_t(uint8_t, eld
[2], 21); /* 84 bytes of hw ELD buffer */
5263 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
5264 for (i
= 0; i
< len
; i
++)
5265 I915_WRITE(hdmiw_hdmiedid
, *((uint32_t *)eld
+ i
));
5267 i
= I915_READ(aud_cntrl_st2
);
5269 I915_WRITE(aud_cntrl_st2
, i
);
5273 static void ironlake_write_eld(struct drm_connector
*connector
,
5274 struct drm_crtc
*crtc
)
5276 struct drm_i915_private
*dev_priv
= connector
->dev
->dev_private
;
5277 uint8_t *eld
= connector
->eld
;
5285 int pipe
= to_intel_crtc(crtc
)->pipe
;
5287 if (HAS_PCH_IBX(connector
->dev
)) {
5288 hdmiw_hdmiedid
= IBX_HDMIW_HDMIEDID(pipe
);
5289 aud_config
= IBX_AUD_CFG(pipe
);
5290 aud_cntl_st
= IBX_AUD_CNTL_ST(pipe
);
5291 aud_cntrl_st2
= IBX_AUD_CNTL_ST2
;
5293 hdmiw_hdmiedid
= CPT_HDMIW_HDMIEDID(pipe
);
5294 aud_config
= CPT_AUD_CFG(pipe
);
5295 aud_cntl_st
= CPT_AUD_CNTL_ST(pipe
);
5296 aud_cntrl_st2
= CPT_AUD_CNTRL_ST2
;
5299 DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe
));
5301 i
= I915_READ(aud_cntl_st
);
5302 i
= (i
>> 29) & DIP_PORT_SEL_MASK
; /* DIP_Port_Select, 0x1 = PortB */
5304 DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
5305 /* operate blindly on all ports */
5306 eldv
= IBX_ELD_VALIDB
;
5307 eldv
|= IBX_ELD_VALIDB
<< 4;
5308 eldv
|= IBX_ELD_VALIDB
<< 8;
5310 DRM_DEBUG_DRIVER("ELD on port %c\n", 'A' + i
);
5311 eldv
= IBX_ELD_VALIDB
<< ((i
- 1) * 4);
5314 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_DISPLAYPORT
)) {
5315 DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
5316 eld
[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
5317 I915_WRITE(aud_config
, AUD_CONFIG_N_VALUE_INDEX
); /* 0x1 = DP */
5319 I915_WRITE(aud_config
, 0);
5321 if (intel_eld_uptodate(connector
,
5322 aud_cntrl_st2
, eldv
,
5323 aud_cntl_st
, IBX_ELD_ADDRESS
,
5327 i
= I915_READ(aud_cntrl_st2
);
5329 I915_WRITE(aud_cntrl_st2
, i
);
5334 i
= I915_READ(aud_cntl_st
);
5335 i
&= ~IBX_ELD_ADDRESS
;
5336 I915_WRITE(aud_cntl_st
, i
);
5338 len
= min_t(uint8_t, eld
[2], 21); /* 84 bytes of hw ELD buffer */
5339 DRM_DEBUG_DRIVER("ELD size %d\n", len
);
5340 for (i
= 0; i
< len
; i
++)
5341 I915_WRITE(hdmiw_hdmiedid
, *((uint32_t *)eld
+ i
));
5343 i
= I915_READ(aud_cntrl_st2
);
5345 I915_WRITE(aud_cntrl_st2
, i
);
5348 void intel_write_eld(struct drm_encoder
*encoder
,
5349 struct drm_display_mode
*mode
)
5351 struct drm_crtc
*crtc
= encoder
->crtc
;
5352 struct drm_connector
*connector
;
5353 struct drm_device
*dev
= encoder
->dev
;
5354 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5356 connector
= drm_select_eld(encoder
, mode
);
5360 DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
5362 drm_get_connector_name(connector
),
5363 connector
->encoder
->base
.id
,
5364 drm_get_encoder_name(connector
->encoder
));
5366 connector
->eld
[6] = drm_av_sync_delay(connector
, mode
) / 2;
5368 if (dev_priv
->display
.write_eld
)
5369 dev_priv
->display
.write_eld(connector
, crtc
);
5372 /** Loads the palette/gamma unit for the CRTC with the prepared values */
5373 void intel_crtc_load_lut(struct drm_crtc
*crtc
)
5375 struct drm_device
*dev
= crtc
->dev
;
5376 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5377 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5378 int palreg
= PALETTE(intel_crtc
->pipe
);
5381 /* The clocks have to be on to load the palette. */
5382 if (!crtc
->enabled
|| !intel_crtc
->active
)
5385 /* use legacy palette for Ironlake */
5386 if (HAS_PCH_SPLIT(dev
))
5387 palreg
= LGC_PALETTE(intel_crtc
->pipe
);
5389 for (i
= 0; i
< 256; i
++) {
5390 I915_WRITE(palreg
+ 4 * i
,
5391 (intel_crtc
->lut_r
[i
] << 16) |
5392 (intel_crtc
->lut_g
[i
] << 8) |
5393 intel_crtc
->lut_b
[i
]);
5397 static void i845_update_cursor(struct drm_crtc
*crtc
, u32 base
)
5399 struct drm_device
*dev
= crtc
->dev
;
5400 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5401 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5402 bool visible
= base
!= 0;
5405 if (intel_crtc
->cursor_visible
== visible
)
5408 cntl
= I915_READ(_CURACNTR
);
5410 /* On these chipsets we can only modify the base whilst
5411 * the cursor is disabled.
5413 I915_WRITE(_CURABASE
, base
);
5415 cntl
&= ~(CURSOR_FORMAT_MASK
);
5416 /* XXX width must be 64, stride 256 => 0x00 << 28 */
5417 cntl
|= CURSOR_ENABLE
|
5418 CURSOR_GAMMA_ENABLE
|
5421 cntl
&= ~(CURSOR_ENABLE
| CURSOR_GAMMA_ENABLE
);
5422 I915_WRITE(_CURACNTR
, cntl
);
5424 intel_crtc
->cursor_visible
= visible
;
5427 static void i9xx_update_cursor(struct drm_crtc
*crtc
, u32 base
)
5429 struct drm_device
*dev
= crtc
->dev
;
5430 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5431 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5432 int pipe
= intel_crtc
->pipe
;
5433 bool visible
= base
!= 0;
5435 if (intel_crtc
->cursor_visible
!= visible
) {
5436 uint32_t cntl
= I915_READ(CURCNTR(pipe
));
5438 cntl
&= ~(CURSOR_MODE
| MCURSOR_PIPE_SELECT
);
5439 cntl
|= CURSOR_MODE_64_ARGB_AX
| MCURSOR_GAMMA_ENABLE
;
5440 cntl
|= pipe
<< 28; /* Connect to correct pipe */
5442 cntl
&= ~(CURSOR_MODE
| MCURSOR_GAMMA_ENABLE
);
5443 cntl
|= CURSOR_MODE_DISABLE
;
5445 I915_WRITE(CURCNTR(pipe
), cntl
);
5447 intel_crtc
->cursor_visible
= visible
;
5449 /* and commit changes on next vblank */
5450 I915_WRITE(CURBASE(pipe
), base
);
5453 static void ivb_update_cursor(struct drm_crtc
*crtc
, u32 base
)
5455 struct drm_device
*dev
= crtc
->dev
;
5456 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5457 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5458 int pipe
= intel_crtc
->pipe
;
5459 bool visible
= base
!= 0;
5461 if (intel_crtc
->cursor_visible
!= visible
) {
5462 uint32_t cntl
= I915_READ(CURCNTR_IVB(pipe
));
5464 cntl
&= ~CURSOR_MODE
;
5465 cntl
|= CURSOR_MODE_64_ARGB_AX
| MCURSOR_GAMMA_ENABLE
;
5467 cntl
&= ~(CURSOR_MODE
| MCURSOR_GAMMA_ENABLE
);
5468 cntl
|= CURSOR_MODE_DISABLE
;
5470 I915_WRITE(CURCNTR_IVB(pipe
), cntl
);
5472 intel_crtc
->cursor_visible
= visible
;
5474 /* and commit changes on next vblank */
5475 I915_WRITE(CURBASE_IVB(pipe
), base
);
5478 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
5479 static void intel_crtc_update_cursor(struct drm_crtc
*crtc
,
5482 struct drm_device
*dev
= crtc
->dev
;
5483 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5484 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5485 int pipe
= intel_crtc
->pipe
;
5486 int x
= intel_crtc
->cursor_x
;
5487 int y
= intel_crtc
->cursor_y
;
5493 if (on
&& crtc
->enabled
&& crtc
->fb
) {
5494 base
= intel_crtc
->cursor_addr
;
5495 if (x
> (int) crtc
->fb
->width
)
5498 if (y
> (int) crtc
->fb
->height
)
5504 if (x
+ intel_crtc
->cursor_width
< 0)
5507 pos
|= CURSOR_POS_SIGN
<< CURSOR_X_SHIFT
;
5510 pos
|= x
<< CURSOR_X_SHIFT
;
5513 if (y
+ intel_crtc
->cursor_height
< 0)
5516 pos
|= CURSOR_POS_SIGN
<< CURSOR_Y_SHIFT
;
5519 pos
|= y
<< CURSOR_Y_SHIFT
;
5521 visible
= base
!= 0;
5522 if (!visible
&& !intel_crtc
->cursor_visible
)
5525 if (IS_IVYBRIDGE(dev
) || IS_HASWELL(dev
)) {
5526 I915_WRITE(CURPOS_IVB(pipe
), pos
);
5527 ivb_update_cursor(crtc
, base
);
5529 I915_WRITE(CURPOS(pipe
), pos
);
5530 if (IS_845G(dev
) || IS_I865G(dev
))
5531 i845_update_cursor(crtc
, base
);
5533 i9xx_update_cursor(crtc
, base
);
5537 static int intel_crtc_cursor_set(struct drm_crtc
*crtc
,
5538 struct drm_file
*file
,
5540 uint32_t width
, uint32_t height
)
5542 struct drm_device
*dev
= crtc
->dev
;
5543 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5544 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5545 struct drm_i915_gem_object
*obj
;
5549 /* if we want to turn off the cursor ignore width and height */
5551 DRM_DEBUG_KMS("cursor off\n");
5554 mutex_lock(&dev
->struct_mutex
);
5558 /* Currently we only support 64x64 cursors */
5559 if (width
!= 64 || height
!= 64) {
5560 DRM_ERROR("we currently only support 64x64 cursors\n");
5564 obj
= to_intel_bo(drm_gem_object_lookup(dev
, file
, handle
));
5565 if (&obj
->base
== NULL
)
5568 if (obj
->base
.size
< width
* height
* 4) {
5569 DRM_ERROR("buffer is to small\n");
5574 /* we only need to pin inside GTT if cursor is non-phy */
5575 mutex_lock(&dev
->struct_mutex
);
5576 if (!dev_priv
->info
->cursor_needs_physical
) {
5577 if (obj
->tiling_mode
) {
5578 DRM_ERROR("cursor cannot be tiled\n");
5583 ret
= i915_gem_object_pin_to_display_plane(obj
, 0, NULL
);
5585 DRM_ERROR("failed to move cursor bo into the GTT\n");
5589 ret
= i915_gem_object_put_fence(obj
);
5591 DRM_ERROR("failed to release fence for cursor");
5595 addr
= obj
->gtt_offset
;
5597 int align
= IS_I830(dev
) ? 16 * 1024 : 256;
5598 ret
= i915_gem_attach_phys_object(dev
, obj
,
5599 (intel_crtc
->pipe
== 0) ? I915_GEM_PHYS_CURSOR_0
: I915_GEM_PHYS_CURSOR_1
,
5602 DRM_ERROR("failed to attach phys object\n");
5605 addr
= obj
->phys_obj
->handle
->busaddr
;
5609 I915_WRITE(CURSIZE
, (height
<< 12) | width
);
5612 if (intel_crtc
->cursor_bo
) {
5613 if (dev_priv
->info
->cursor_needs_physical
) {
5614 if (intel_crtc
->cursor_bo
!= obj
)
5615 i915_gem_detach_phys_object(dev
, intel_crtc
->cursor_bo
);
5617 i915_gem_object_unpin(intel_crtc
->cursor_bo
);
5618 drm_gem_object_unreference(&intel_crtc
->cursor_bo
->base
);
5621 mutex_unlock(&dev
->struct_mutex
);
5623 intel_crtc
->cursor_addr
= addr
;
5624 intel_crtc
->cursor_bo
= obj
;
5625 intel_crtc
->cursor_width
= width
;
5626 intel_crtc
->cursor_height
= height
;
5628 intel_crtc_update_cursor(crtc
, true);
5632 i915_gem_object_unpin(obj
);
5634 mutex_unlock(&dev
->struct_mutex
);
5636 drm_gem_object_unreference_unlocked(&obj
->base
);
5640 static int intel_crtc_cursor_move(struct drm_crtc
*crtc
, int x
, int y
)
5642 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5644 intel_crtc
->cursor_x
= x
;
5645 intel_crtc
->cursor_y
= y
;
5647 intel_crtc_update_cursor(crtc
, true);
5652 /** Sets the color ramps on behalf of RandR */
5653 void intel_crtc_fb_gamma_set(struct drm_crtc
*crtc
, u16 red
, u16 green
,
5654 u16 blue
, int regno
)
5656 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5658 intel_crtc
->lut_r
[regno
] = red
>> 8;
5659 intel_crtc
->lut_g
[regno
] = green
>> 8;
5660 intel_crtc
->lut_b
[regno
] = blue
>> 8;
5663 void intel_crtc_fb_gamma_get(struct drm_crtc
*crtc
, u16
*red
, u16
*green
,
5664 u16
*blue
, int regno
)
5666 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5668 *red
= intel_crtc
->lut_r
[regno
] << 8;
5669 *green
= intel_crtc
->lut_g
[regno
] << 8;
5670 *blue
= intel_crtc
->lut_b
[regno
] << 8;
5673 static void intel_crtc_gamma_set(struct drm_crtc
*crtc
, u16
*red
, u16
*green
,
5674 u16
*blue
, uint32_t start
, uint32_t size
)
5676 int end
= (start
+ size
> 256) ? 256 : start
+ size
, i
;
5677 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5679 for (i
= start
; i
< end
; i
++) {
5680 intel_crtc
->lut_r
[i
] = red
[i
] >> 8;
5681 intel_crtc
->lut_g
[i
] = green
[i
] >> 8;
5682 intel_crtc
->lut_b
[i
] = blue
[i
] >> 8;
5685 intel_crtc_load_lut(crtc
);
5689 * Get a pipe with a simple mode set on it for doing load-based monitor
5692 * It will be up to the load-detect code to adjust the pipe as appropriate for
5693 * its requirements. The pipe will be connected to no other encoders.
5695 * Currently this code will only succeed if there is a pipe with no encoders
5696 * configured for it. In the future, it could choose to temporarily disable
5697 * some outputs to free up a pipe for its use.
5699 * \return crtc, or NULL if no pipes are available.
5702 /* VESA 640x480x72Hz mode to set on the pipe */
5703 static struct drm_display_mode load_detect_mode
= {
5704 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT
, 31500, 640, 664,
5705 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
5708 static struct drm_framebuffer
*
5709 intel_framebuffer_create(struct drm_device
*dev
,
5710 struct drm_mode_fb_cmd2
*mode_cmd
,
5711 struct drm_i915_gem_object
*obj
)
5713 struct intel_framebuffer
*intel_fb
;
5716 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
5718 drm_gem_object_unreference_unlocked(&obj
->base
);
5719 return ERR_PTR(-ENOMEM
);
5722 ret
= intel_framebuffer_init(dev
, intel_fb
, mode_cmd
, obj
);
5724 drm_gem_object_unreference_unlocked(&obj
->base
);
5726 return ERR_PTR(ret
);
5729 return &intel_fb
->base
;
5733 intel_framebuffer_pitch_for_width(int width
, int bpp
)
5735 u32 pitch
= DIV_ROUND_UP(width
* bpp
, 8);
5736 return ALIGN(pitch
, 64);
5740 intel_framebuffer_size_for_mode(struct drm_display_mode
*mode
, int bpp
)
5742 u32 pitch
= intel_framebuffer_pitch_for_width(mode
->hdisplay
, bpp
);
5743 return ALIGN(pitch
* mode
->vdisplay
, PAGE_SIZE
);
5746 static struct drm_framebuffer
*
5747 intel_framebuffer_create_for_mode(struct drm_device
*dev
,
5748 struct drm_display_mode
*mode
,
5751 struct drm_i915_gem_object
*obj
;
5752 struct drm_mode_fb_cmd2 mode_cmd
;
5754 obj
= i915_gem_alloc_object(dev
,
5755 intel_framebuffer_size_for_mode(mode
, bpp
));
5757 return ERR_PTR(-ENOMEM
);
5759 mode_cmd
.width
= mode
->hdisplay
;
5760 mode_cmd
.height
= mode
->vdisplay
;
5761 mode_cmd
.pitches
[0] = intel_framebuffer_pitch_for_width(mode_cmd
.width
,
5763 mode_cmd
.pixel_format
= drm_mode_legacy_fb_format(bpp
, depth
);
5765 return intel_framebuffer_create(dev
, &mode_cmd
, obj
);
5768 static struct drm_framebuffer
*
5769 mode_fits_in_fbdev(struct drm_device
*dev
,
5770 struct drm_display_mode
*mode
)
5772 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5773 struct drm_i915_gem_object
*obj
;
5774 struct drm_framebuffer
*fb
;
5776 if (dev_priv
->fbdev
== NULL
)
5779 obj
= dev_priv
->fbdev
->ifb
.obj
;
5783 fb
= &dev_priv
->fbdev
->ifb
.base
;
5784 if (fb
->pitches
[0] < intel_framebuffer_pitch_for_width(mode
->hdisplay
,
5785 fb
->bits_per_pixel
))
5788 if (obj
->base
.size
< mode
->vdisplay
* fb
->pitches
[0])
5794 bool intel_get_load_detect_pipe(struct drm_connector
*connector
,
5795 struct drm_display_mode
*mode
,
5796 struct intel_load_detect_pipe
*old
)
5798 struct intel_crtc
*intel_crtc
;
5799 struct intel_encoder
*intel_encoder
=
5800 intel_attached_encoder(connector
);
5801 struct drm_crtc
*possible_crtc
;
5802 struct drm_encoder
*encoder
= &intel_encoder
->base
;
5803 struct drm_crtc
*crtc
= NULL
;
5804 struct drm_device
*dev
= encoder
->dev
;
5805 struct drm_framebuffer
*fb
;
5808 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
5809 connector
->base
.id
, drm_get_connector_name(connector
),
5810 encoder
->base
.id
, drm_get_encoder_name(encoder
));
5813 * Algorithm gets a little messy:
5815 * - if the connector already has an assigned crtc, use it (but make
5816 * sure it's on first)
5818 * - try to find the first unused crtc that can drive this connector,
5819 * and use that if we find one
5822 /* See if we already have a CRTC for this connector */
5823 if (encoder
->crtc
) {
5824 crtc
= encoder
->crtc
;
5826 old
->dpms_mode
= connector
->dpms
;
5827 old
->load_detect_temp
= false;
5829 /* Make sure the crtc and connector are running */
5830 if (connector
->dpms
!= DRM_MODE_DPMS_ON
)
5831 connector
->funcs
->dpms(connector
, DRM_MODE_DPMS_ON
);
5836 /* Find an unused one (if possible) */
5837 list_for_each_entry(possible_crtc
, &dev
->mode_config
.crtc_list
, head
) {
5839 if (!(encoder
->possible_crtcs
& (1 << i
)))
5841 if (!possible_crtc
->enabled
) {
5842 crtc
= possible_crtc
;
5848 * If we didn't find an unused CRTC, don't use any.
5851 DRM_DEBUG_KMS("no pipe available for load-detect\n");
5855 intel_encoder
->new_crtc
= to_intel_crtc(crtc
);
5856 to_intel_connector(connector
)->new_encoder
= intel_encoder
;
5858 intel_crtc
= to_intel_crtc(crtc
);
5859 old
->dpms_mode
= connector
->dpms
;
5860 old
->load_detect_temp
= true;
5861 old
->release_fb
= NULL
;
5864 mode
= &load_detect_mode
;
5866 /* We need a framebuffer large enough to accommodate all accesses
5867 * that the plane may generate whilst we perform load detection.
5868 * We can not rely on the fbcon either being present (we get called
5869 * during its initialisation to detect all boot displays, or it may
5870 * not even exist) or that it is large enough to satisfy the
5873 fb
= mode_fits_in_fbdev(dev
, mode
);
5875 DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
5876 fb
= intel_framebuffer_create_for_mode(dev
, mode
, 24, 32);
5877 old
->release_fb
= fb
;
5879 DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
5881 DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
5885 if (!intel_set_mode(crtc
, mode
, 0, 0, fb
)) {
5886 DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
5887 if (old
->release_fb
)
5888 old
->release_fb
->funcs
->destroy(old
->release_fb
);
5892 /* let the connector get through one full cycle before testing */
5893 intel_wait_for_vblank(dev
, intel_crtc
->pipe
);
5897 connector
->encoder
= NULL
;
5898 encoder
->crtc
= NULL
;
5902 void intel_release_load_detect_pipe(struct drm_connector
*connector
,
5903 struct intel_load_detect_pipe
*old
)
5905 struct intel_encoder
*intel_encoder
=
5906 intel_attached_encoder(connector
);
5907 struct drm_encoder
*encoder
= &intel_encoder
->base
;
5909 DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
5910 connector
->base
.id
, drm_get_connector_name(connector
),
5911 encoder
->base
.id
, drm_get_encoder_name(encoder
));
5913 if (old
->load_detect_temp
) {
5914 struct drm_crtc
*crtc
= encoder
->crtc
;
5916 to_intel_connector(connector
)->new_encoder
= NULL
;
5917 intel_encoder
->new_crtc
= NULL
;
5918 intel_set_mode(crtc
, NULL
, 0, 0, NULL
);
5920 if (old
->release_fb
)
5921 old
->release_fb
->funcs
->destroy(old
->release_fb
);
5926 /* Switch crtc and encoder back off if necessary */
5927 if (old
->dpms_mode
!= DRM_MODE_DPMS_ON
)
5928 connector
->funcs
->dpms(connector
, old
->dpms_mode
);
5931 /* Returns the clock of the currently programmed mode of the given pipe. */
5932 static int intel_crtc_clock_get(struct drm_device
*dev
, struct drm_crtc
*crtc
)
5934 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
5935 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
5936 int pipe
= intel_crtc
->pipe
;
5937 u32 dpll
= I915_READ(DPLL(pipe
));
5939 intel_clock_t clock
;
5941 if ((dpll
& DISPLAY_RATE_SELECT_FPA1
) == 0)
5942 fp
= I915_READ(FP0(pipe
));
5944 fp
= I915_READ(FP1(pipe
));
5946 clock
.m1
= (fp
& FP_M1_DIV_MASK
) >> FP_M1_DIV_SHIFT
;
5947 if (IS_PINEVIEW(dev
)) {
5948 clock
.n
= ffs((fp
& FP_N_PINEVIEW_DIV_MASK
) >> FP_N_DIV_SHIFT
) - 1;
5949 clock
.m2
= (fp
& FP_M2_PINEVIEW_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
5951 clock
.n
= (fp
& FP_N_DIV_MASK
) >> FP_N_DIV_SHIFT
;
5952 clock
.m2
= (fp
& FP_M2_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
5955 if (!IS_GEN2(dev
)) {
5956 if (IS_PINEVIEW(dev
))
5957 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW
) >>
5958 DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW
);
5960 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK
) >>
5961 DPLL_FPA01_P1_POST_DIV_SHIFT
);
5963 switch (dpll
& DPLL_MODE_MASK
) {
5964 case DPLLB_MODE_DAC_SERIAL
:
5965 clock
.p2
= dpll
& DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
?
5968 case DPLLB_MODE_LVDS
:
5969 clock
.p2
= dpll
& DPLLB_LVDS_P2_CLOCK_DIV_7
?
5973 DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
5974 "mode\n", (int)(dpll
& DPLL_MODE_MASK
));
5978 /* XXX: Handle the 100Mhz refclk */
5979 intel_clock(dev
, 96000, &clock
);
5981 bool is_lvds
= (pipe
== 1) && (I915_READ(LVDS
) & LVDS_PORT_EN
);
5984 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS
) >>
5985 DPLL_FPA01_P1_POST_DIV_SHIFT
);
5988 if ((dpll
& PLL_REF_INPUT_MASK
) ==
5989 PLLB_REF_INPUT_SPREADSPECTRUMIN
) {
5990 /* XXX: might not be 66MHz */
5991 intel_clock(dev
, 66000, &clock
);
5993 intel_clock(dev
, 48000, &clock
);
5995 if (dpll
& PLL_P1_DIVIDE_BY_TWO
)
5998 clock
.p1
= ((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830
) >>
5999 DPLL_FPA01_P1_POST_DIV_SHIFT
) + 2;
6001 if (dpll
& PLL_P2_DIVIDE_BY_4
)
6006 intel_clock(dev
, 48000, &clock
);
6010 /* XXX: It would be nice to validate the clocks, but we can't reuse
6011 * i830PllIsValid() because it relies on the xf86_config connector
6012 * configuration being accurate, which it isn't necessarily.
6018 /** Returns the currently programmed mode of the given pipe. */
6019 struct drm_display_mode
*intel_crtc_mode_get(struct drm_device
*dev
,
6020 struct drm_crtc
*crtc
)
6022 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6023 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6024 int pipe
= intel_crtc
->pipe
;
6025 struct drm_display_mode
*mode
;
6026 int htot
= I915_READ(HTOTAL(pipe
));
6027 int hsync
= I915_READ(HSYNC(pipe
));
6028 int vtot
= I915_READ(VTOTAL(pipe
));
6029 int vsync
= I915_READ(VSYNC(pipe
));
6031 mode
= kzalloc(sizeof(*mode
), GFP_KERNEL
);
6035 mode
->clock
= intel_crtc_clock_get(dev
, crtc
);
6036 mode
->hdisplay
= (htot
& 0xffff) + 1;
6037 mode
->htotal
= ((htot
& 0xffff0000) >> 16) + 1;
6038 mode
->hsync_start
= (hsync
& 0xffff) + 1;
6039 mode
->hsync_end
= ((hsync
& 0xffff0000) >> 16) + 1;
6040 mode
->vdisplay
= (vtot
& 0xffff) + 1;
6041 mode
->vtotal
= ((vtot
& 0xffff0000) >> 16) + 1;
6042 mode
->vsync_start
= (vsync
& 0xffff) + 1;
6043 mode
->vsync_end
= ((vsync
& 0xffff0000) >> 16) + 1;
6045 drm_mode_set_name(mode
);
6050 static void intel_increase_pllclock(struct drm_crtc
*crtc
)
6052 struct drm_device
*dev
= crtc
->dev
;
6053 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
6054 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6055 int pipe
= intel_crtc
->pipe
;
6056 int dpll_reg
= DPLL(pipe
);
6059 if (HAS_PCH_SPLIT(dev
))
6062 if (!dev_priv
->lvds_downclock_avail
)
6065 dpll
= I915_READ(dpll_reg
);
6066 if (!HAS_PIPE_CXSR(dev
) && (dpll
& DISPLAY_RATE_SELECT_FPA1
)) {
6067 DRM_DEBUG_DRIVER("upclocking LVDS\n");
6069 assert_panel_unlocked(dev_priv
, pipe
);
6071 dpll
&= ~DISPLAY_RATE_SELECT_FPA1
;
6072 I915_WRITE(dpll_reg
, dpll
);
6073 intel_wait_for_vblank(dev
, pipe
);
6075 dpll
= I915_READ(dpll_reg
);
6076 if (dpll
& DISPLAY_RATE_SELECT_FPA1
)
6077 DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
6081 static void intel_decrease_pllclock(struct drm_crtc
*crtc
)
6083 struct drm_device
*dev
= crtc
->dev
;
6084 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
6085 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6087 if (HAS_PCH_SPLIT(dev
))
6090 if (!dev_priv
->lvds_downclock_avail
)
6094 * Since this is called by a timer, we should never get here in
6097 if (!HAS_PIPE_CXSR(dev
) && intel_crtc
->lowfreq_avail
) {
6098 int pipe
= intel_crtc
->pipe
;
6099 int dpll_reg
= DPLL(pipe
);
6102 DRM_DEBUG_DRIVER("downclocking LVDS\n");
6104 assert_panel_unlocked(dev_priv
, pipe
);
6106 dpll
= I915_READ(dpll_reg
);
6107 dpll
|= DISPLAY_RATE_SELECT_FPA1
;
6108 I915_WRITE(dpll_reg
, dpll
);
6109 intel_wait_for_vblank(dev
, pipe
);
6110 dpll
= I915_READ(dpll_reg
);
6111 if (!(dpll
& DISPLAY_RATE_SELECT_FPA1
))
6112 DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
6117 void intel_mark_busy(struct drm_device
*dev
)
6119 i915_update_gfx_val(dev
->dev_private
);
6122 void intel_mark_idle(struct drm_device
*dev
)
6126 void intel_mark_fb_busy(struct drm_i915_gem_object
*obj
)
6128 struct drm_device
*dev
= obj
->base
.dev
;
6129 struct drm_crtc
*crtc
;
6131 if (!i915_powersave
)
6134 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
6138 if (to_intel_framebuffer(crtc
->fb
)->obj
== obj
)
6139 intel_increase_pllclock(crtc
);
6143 void intel_mark_fb_idle(struct drm_i915_gem_object
*obj
)
6145 struct drm_device
*dev
= obj
->base
.dev
;
6146 struct drm_crtc
*crtc
;
6148 if (!i915_powersave
)
6151 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
6155 if (to_intel_framebuffer(crtc
->fb
)->obj
== obj
)
6156 intel_decrease_pllclock(crtc
);
6160 static void intel_crtc_destroy(struct drm_crtc
*crtc
)
6162 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6163 struct drm_device
*dev
= crtc
->dev
;
6164 struct intel_unpin_work
*work
;
6165 unsigned long flags
;
6167 spin_lock_irqsave(&dev
->event_lock
, flags
);
6168 work
= intel_crtc
->unpin_work
;
6169 intel_crtc
->unpin_work
= NULL
;
6170 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
6173 cancel_work_sync(&work
->work
);
6177 drm_crtc_cleanup(crtc
);
6182 static void intel_unpin_work_fn(struct work_struct
*__work
)
6184 struct intel_unpin_work
*work
=
6185 container_of(__work
, struct intel_unpin_work
, work
);
6187 mutex_lock(&work
->dev
->struct_mutex
);
6188 intel_unpin_fb_obj(work
->old_fb_obj
);
6189 drm_gem_object_unreference(&work
->pending_flip_obj
->base
);
6190 drm_gem_object_unreference(&work
->old_fb_obj
->base
);
6192 intel_update_fbc(work
->dev
);
6193 mutex_unlock(&work
->dev
->struct_mutex
);
6197 static void do_intel_finish_page_flip(struct drm_device
*dev
,
6198 struct drm_crtc
*crtc
)
6200 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
6201 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6202 struct intel_unpin_work
*work
;
6203 struct drm_i915_gem_object
*obj
;
6204 struct drm_pending_vblank_event
*e
;
6205 struct timeval tvbl
;
6206 unsigned long flags
;
6208 /* Ignore early vblank irqs */
6209 if (intel_crtc
== NULL
)
6212 spin_lock_irqsave(&dev
->event_lock
, flags
);
6213 work
= intel_crtc
->unpin_work
;
6214 if (work
== NULL
|| !work
->pending
) {
6215 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
6219 intel_crtc
->unpin_work
= NULL
;
6223 e
->event
.sequence
= drm_vblank_count_and_time(dev
, intel_crtc
->pipe
, &tvbl
);
6225 e
->event
.tv_sec
= tvbl
.tv_sec
;
6226 e
->event
.tv_usec
= tvbl
.tv_usec
;
6228 list_add_tail(&e
->base
.link
,
6229 &e
->base
.file_priv
->event_list
);
6230 wake_up_interruptible(&e
->base
.file_priv
->event_wait
);
6233 drm_vblank_put(dev
, intel_crtc
->pipe
);
6235 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
6237 obj
= work
->old_fb_obj
;
6239 atomic_clear_mask(1 << intel_crtc
->plane
,
6240 &obj
->pending_flip
.counter
);
6242 wake_up(&dev_priv
->pending_flip_queue
);
6243 schedule_work(&work
->work
);
6245 trace_i915_flip_complete(intel_crtc
->plane
, work
->pending_flip_obj
);
6248 void intel_finish_page_flip(struct drm_device
*dev
, int pipe
)
6250 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
6251 struct drm_crtc
*crtc
= dev_priv
->pipe_to_crtc_mapping
[pipe
];
6253 do_intel_finish_page_flip(dev
, crtc
);
6256 void intel_finish_page_flip_plane(struct drm_device
*dev
, int plane
)
6258 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
6259 struct drm_crtc
*crtc
= dev_priv
->plane_to_crtc_mapping
[plane
];
6261 do_intel_finish_page_flip(dev
, crtc
);
6264 void intel_prepare_page_flip(struct drm_device
*dev
, int plane
)
6266 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
6267 struct intel_crtc
*intel_crtc
=
6268 to_intel_crtc(dev_priv
->plane_to_crtc_mapping
[plane
]);
6269 unsigned long flags
;
6271 spin_lock_irqsave(&dev
->event_lock
, flags
);
6272 if (intel_crtc
->unpin_work
) {
6273 if ((++intel_crtc
->unpin_work
->pending
) > 1)
6274 DRM_ERROR("Prepared flip multiple times\n");
6276 DRM_DEBUG_DRIVER("preparing flip with no unpin work?\n");
6278 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
6281 static int intel_gen2_queue_flip(struct drm_device
*dev
,
6282 struct drm_crtc
*crtc
,
6283 struct drm_framebuffer
*fb
,
6284 struct drm_i915_gem_object
*obj
)
6286 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6287 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6289 struct intel_ring_buffer
*ring
= &dev_priv
->ring
[RCS
];
6292 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
6296 ret
= intel_ring_begin(ring
, 6);
6300 /* Can't queue multiple flips, so wait for the previous
6301 * one to finish before executing the next.
6303 if (intel_crtc
->plane
)
6304 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
6306 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
6307 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
6308 intel_ring_emit(ring
, MI_NOOP
);
6309 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
6310 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
6311 intel_ring_emit(ring
, fb
->pitches
[0]);
6312 intel_ring_emit(ring
, obj
->gtt_offset
+ intel_crtc
->dspaddr_offset
);
6313 intel_ring_emit(ring
, 0); /* aux display base address, unused */
6314 intel_ring_advance(ring
);
6318 intel_unpin_fb_obj(obj
);
6323 static int intel_gen3_queue_flip(struct drm_device
*dev
,
6324 struct drm_crtc
*crtc
,
6325 struct drm_framebuffer
*fb
,
6326 struct drm_i915_gem_object
*obj
)
6328 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6329 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6331 struct intel_ring_buffer
*ring
= &dev_priv
->ring
[RCS
];
6334 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
6338 ret
= intel_ring_begin(ring
, 6);
6342 if (intel_crtc
->plane
)
6343 flip_mask
= MI_WAIT_FOR_PLANE_B_FLIP
;
6345 flip_mask
= MI_WAIT_FOR_PLANE_A_FLIP
;
6346 intel_ring_emit(ring
, MI_WAIT_FOR_EVENT
| flip_mask
);
6347 intel_ring_emit(ring
, MI_NOOP
);
6348 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
|
6349 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
6350 intel_ring_emit(ring
, fb
->pitches
[0]);
6351 intel_ring_emit(ring
, obj
->gtt_offset
+ intel_crtc
->dspaddr_offset
);
6352 intel_ring_emit(ring
, MI_NOOP
);
6354 intel_ring_advance(ring
);
6358 intel_unpin_fb_obj(obj
);
6363 static int intel_gen4_queue_flip(struct drm_device
*dev
,
6364 struct drm_crtc
*crtc
,
6365 struct drm_framebuffer
*fb
,
6366 struct drm_i915_gem_object
*obj
)
6368 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6369 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6370 uint32_t pf
, pipesrc
;
6371 struct intel_ring_buffer
*ring
= &dev_priv
->ring
[RCS
];
6374 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
6378 ret
= intel_ring_begin(ring
, 4);
6382 /* i965+ uses the linear or tiled offsets from the
6383 * Display Registers (which do not change across a page-flip)
6384 * so we need only reprogram the base address.
6386 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
6387 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
6388 intel_ring_emit(ring
, fb
->pitches
[0]);
6389 intel_ring_emit(ring
,
6390 (obj
->gtt_offset
+ intel_crtc
->dspaddr_offset
) |
6393 /* XXX Enabling the panel-fitter across page-flip is so far
6394 * untested on non-native modes, so ignore it for now.
6395 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
6398 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
6399 intel_ring_emit(ring
, pf
| pipesrc
);
6400 intel_ring_advance(ring
);
6404 intel_unpin_fb_obj(obj
);
6409 static int intel_gen6_queue_flip(struct drm_device
*dev
,
6410 struct drm_crtc
*crtc
,
6411 struct drm_framebuffer
*fb
,
6412 struct drm_i915_gem_object
*obj
)
6414 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6415 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6416 struct intel_ring_buffer
*ring
= &dev_priv
->ring
[RCS
];
6417 uint32_t pf
, pipesrc
;
6420 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
6424 ret
= intel_ring_begin(ring
, 4);
6428 intel_ring_emit(ring
, MI_DISPLAY_FLIP
|
6429 MI_DISPLAY_FLIP_PLANE(intel_crtc
->plane
));
6430 intel_ring_emit(ring
, fb
->pitches
[0] | obj
->tiling_mode
);
6431 intel_ring_emit(ring
, obj
->gtt_offset
+ intel_crtc
->dspaddr_offset
);
6433 /* Contrary to the suggestions in the documentation,
6434 * "Enable Panel Fitter" does not seem to be required when page
6435 * flipping with a non-native mode, and worse causes a normal
6437 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
6440 pipesrc
= I915_READ(PIPESRC(intel_crtc
->pipe
)) & 0x0fff0fff;
6441 intel_ring_emit(ring
, pf
| pipesrc
);
6442 intel_ring_advance(ring
);
6446 intel_unpin_fb_obj(obj
);
6452 * On gen7 we currently use the blit ring because (in early silicon at least)
6453 * the render ring doesn't give us interrpts for page flip completion, which
6454 * means clients will hang after the first flip is queued. Fortunately the
6455 * blit ring generates interrupts properly, so use it instead.
6457 static int intel_gen7_queue_flip(struct drm_device
*dev
,
6458 struct drm_crtc
*crtc
,
6459 struct drm_framebuffer
*fb
,
6460 struct drm_i915_gem_object
*obj
)
6462 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6463 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6464 struct intel_ring_buffer
*ring
= &dev_priv
->ring
[BCS
];
6465 uint32_t plane_bit
= 0;
6468 ret
= intel_pin_and_fence_fb_obj(dev
, obj
, ring
);
6472 switch(intel_crtc
->plane
) {
6474 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_A
;
6477 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_B
;
6480 plane_bit
= MI_DISPLAY_FLIP_IVB_PLANE_C
;
6483 WARN_ONCE(1, "unknown plane in flip command\n");
6488 ret
= intel_ring_begin(ring
, 4);
6492 intel_ring_emit(ring
, MI_DISPLAY_FLIP_I915
| plane_bit
);
6493 intel_ring_emit(ring
, (fb
->pitches
[0] | obj
->tiling_mode
));
6494 intel_ring_emit(ring
, obj
->gtt_offset
+ intel_crtc
->dspaddr_offset
);
6495 intel_ring_emit(ring
, (MI_NOOP
));
6496 intel_ring_advance(ring
);
6500 intel_unpin_fb_obj(obj
);
6505 static int intel_default_queue_flip(struct drm_device
*dev
,
6506 struct drm_crtc
*crtc
,
6507 struct drm_framebuffer
*fb
,
6508 struct drm_i915_gem_object
*obj
)
6513 static int intel_crtc_page_flip(struct drm_crtc
*crtc
,
6514 struct drm_framebuffer
*fb
,
6515 struct drm_pending_vblank_event
*event
)
6517 struct drm_device
*dev
= crtc
->dev
;
6518 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
6519 struct intel_framebuffer
*intel_fb
;
6520 struct drm_i915_gem_object
*obj
;
6521 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
6522 struct intel_unpin_work
*work
;
6523 unsigned long flags
;
6526 /* Can't change pixel format via MI display flips. */
6527 if (fb
->pixel_format
!= crtc
->fb
->pixel_format
)
6531 * TILEOFF/LINOFF registers can't be changed via MI display flips.
6532 * Note that pitch changes could also affect these register.
6534 if (INTEL_INFO(dev
)->gen
> 3 &&
6535 (fb
->offsets
[0] != crtc
->fb
->offsets
[0] ||
6536 fb
->pitches
[0] != crtc
->fb
->pitches
[0]))
6539 work
= kzalloc(sizeof *work
, GFP_KERNEL
);
6543 work
->event
= event
;
6544 work
->dev
= crtc
->dev
;
6545 intel_fb
= to_intel_framebuffer(crtc
->fb
);
6546 work
->old_fb_obj
= intel_fb
->obj
;
6547 INIT_WORK(&work
->work
, intel_unpin_work_fn
);
6549 ret
= drm_vblank_get(dev
, intel_crtc
->pipe
);
6553 /* We borrow the event spin lock for protecting unpin_work */
6554 spin_lock_irqsave(&dev
->event_lock
, flags
);
6555 if (intel_crtc
->unpin_work
) {
6556 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
6558 drm_vblank_put(dev
, intel_crtc
->pipe
);
6560 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
6563 intel_crtc
->unpin_work
= work
;
6564 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
6566 intel_fb
= to_intel_framebuffer(fb
);
6567 obj
= intel_fb
->obj
;
6569 ret
= i915_mutex_lock_interruptible(dev
);
6573 /* Reference the objects for the scheduled work. */
6574 drm_gem_object_reference(&work
->old_fb_obj
->base
);
6575 drm_gem_object_reference(&obj
->base
);
6579 work
->pending_flip_obj
= obj
;
6581 work
->enable_stall_check
= true;
6583 /* Block clients from rendering to the new back buffer until
6584 * the flip occurs and the object is no longer visible.
6586 atomic_add(1 << intel_crtc
->plane
, &work
->old_fb_obj
->pending_flip
);
6588 ret
= dev_priv
->display
.queue_flip(dev
, crtc
, fb
, obj
);
6590 goto cleanup_pending
;
6592 intel_disable_fbc(dev
);
6593 intel_mark_fb_busy(obj
);
6594 mutex_unlock(&dev
->struct_mutex
);
6596 trace_i915_flip_request(intel_crtc
->plane
, obj
);
6601 atomic_sub(1 << intel_crtc
->plane
, &work
->old_fb_obj
->pending_flip
);
6602 drm_gem_object_unreference(&work
->old_fb_obj
->base
);
6603 drm_gem_object_unreference(&obj
->base
);
6604 mutex_unlock(&dev
->struct_mutex
);
6607 spin_lock_irqsave(&dev
->event_lock
, flags
);
6608 intel_crtc
->unpin_work
= NULL
;
6609 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
6611 drm_vblank_put(dev
, intel_crtc
->pipe
);
6618 static struct drm_crtc_helper_funcs intel_helper_funcs
= {
6619 .mode_set_base_atomic
= intel_pipe_set_base_atomic
,
6620 .load_lut
= intel_crtc_load_lut
,
6621 .disable
= intel_crtc_noop
,
6624 bool intel_encoder_check_is_cloned(struct intel_encoder
*encoder
)
6626 struct intel_encoder
*other_encoder
;
6627 struct drm_crtc
*crtc
= &encoder
->new_crtc
->base
;
6632 list_for_each_entry(other_encoder
,
6633 &crtc
->dev
->mode_config
.encoder_list
,
6636 if (&other_encoder
->new_crtc
->base
!= crtc
||
6637 encoder
== other_encoder
)
6646 static bool intel_encoder_crtc_ok(struct drm_encoder
*encoder
,
6647 struct drm_crtc
*crtc
)
6649 struct drm_device
*dev
;
6650 struct drm_crtc
*tmp
;
6653 WARN(!crtc
, "checking null crtc?\n");
6657 list_for_each_entry(tmp
, &dev
->mode_config
.crtc_list
, head
) {
6663 if (encoder
->possible_crtcs
& crtc_mask
)
6669 * intel_modeset_update_staged_output_state
6671 * Updates the staged output configuration state, e.g. after we've read out the
6674 static void intel_modeset_update_staged_output_state(struct drm_device
*dev
)
6676 struct intel_encoder
*encoder
;
6677 struct intel_connector
*connector
;
6679 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
6681 connector
->new_encoder
=
6682 to_intel_encoder(connector
->base
.encoder
);
6685 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
6688 to_intel_crtc(encoder
->base
.crtc
);
6693 * intel_modeset_commit_output_state
6695 * This function copies the stage display pipe configuration to the real one.
6697 static void intel_modeset_commit_output_state(struct drm_device
*dev
)
6699 struct intel_encoder
*encoder
;
6700 struct intel_connector
*connector
;
6702 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
6704 connector
->base
.encoder
= &connector
->new_encoder
->base
;
6707 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
6709 encoder
->base
.crtc
= &encoder
->new_crtc
->base
;
6713 static struct drm_display_mode
*
6714 intel_modeset_adjusted_mode(struct drm_crtc
*crtc
,
6715 struct drm_display_mode
*mode
)
6717 struct drm_device
*dev
= crtc
->dev
;
6718 struct drm_display_mode
*adjusted_mode
;
6719 struct drm_encoder_helper_funcs
*encoder_funcs
;
6720 struct intel_encoder
*encoder
;
6722 adjusted_mode
= drm_mode_duplicate(dev
, mode
);
6724 return ERR_PTR(-ENOMEM
);
6726 /* Pass our mode to the connectors and the CRTC to give them a chance to
6727 * adjust it according to limitations or connector properties, and also
6728 * a chance to reject the mode entirely.
6730 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
6733 if (&encoder
->new_crtc
->base
!= crtc
)
6735 encoder_funcs
= encoder
->base
.helper_private
;
6736 if (!(encoder_funcs
->mode_fixup(&encoder
->base
, mode
,
6738 DRM_DEBUG_KMS("Encoder fixup failed\n");
6743 if (!(intel_crtc_mode_fixup(crtc
, mode
, adjusted_mode
))) {
6744 DRM_DEBUG_KMS("CRTC fixup failed\n");
6747 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc
->base
.id
);
6749 return adjusted_mode
;
6751 drm_mode_destroy(dev
, adjusted_mode
);
6752 return ERR_PTR(-EINVAL
);
6755 /* Computes which crtcs are affected and sets the relevant bits in the mask. For
6756 * simplicity we use the crtc's pipe number (because it's easier to obtain). */
6758 intel_modeset_affected_pipes(struct drm_crtc
*crtc
, unsigned *modeset_pipes
,
6759 unsigned *prepare_pipes
, unsigned *disable_pipes
)
6761 struct intel_crtc
*intel_crtc
;
6762 struct drm_device
*dev
= crtc
->dev
;
6763 struct intel_encoder
*encoder
;
6764 struct intel_connector
*connector
;
6765 struct drm_crtc
*tmp_crtc
;
6767 *disable_pipes
= *modeset_pipes
= *prepare_pipes
= 0;
6769 /* Check which crtcs have changed outputs connected to them, these need
6770 * to be part of the prepare_pipes mask. We don't (yet) support global
6771 * modeset across multiple crtcs, so modeset_pipes will only have one
6772 * bit set at most. */
6773 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
6775 if (connector
->base
.encoder
== &connector
->new_encoder
->base
)
6778 if (connector
->base
.encoder
) {
6779 tmp_crtc
= connector
->base
.encoder
->crtc
;
6781 *prepare_pipes
|= 1 << to_intel_crtc(tmp_crtc
)->pipe
;
6784 if (connector
->new_encoder
)
6786 1 << connector
->new_encoder
->new_crtc
->pipe
;
6789 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
6791 if (encoder
->base
.crtc
== &encoder
->new_crtc
->base
)
6794 if (encoder
->base
.crtc
) {
6795 tmp_crtc
= encoder
->base
.crtc
;
6797 *prepare_pipes
|= 1 << to_intel_crtc(tmp_crtc
)->pipe
;
6800 if (encoder
->new_crtc
)
6801 *prepare_pipes
|= 1 << encoder
->new_crtc
->pipe
;
6804 /* Check for any pipes that will be fully disabled ... */
6805 list_for_each_entry(intel_crtc
, &dev
->mode_config
.crtc_list
,
6809 /* Don't try to disable disabled crtcs. */
6810 if (!intel_crtc
->base
.enabled
)
6813 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
6815 if (encoder
->new_crtc
== intel_crtc
)
6820 *disable_pipes
|= 1 << intel_crtc
->pipe
;
6824 /* set_mode is also used to update properties on life display pipes. */
6825 intel_crtc
= to_intel_crtc(crtc
);
6827 *prepare_pipes
|= 1 << intel_crtc
->pipe
;
6829 /* We only support modeset on one single crtc, hence we need to do that
6830 * only for the passed in crtc iff we change anything else than just
6833 * This is actually not true, to be fully compatible with the old crtc
6834 * helper we automatically disable _any_ output (i.e. doesn't need to be
6835 * connected to the crtc we're modesetting on) if it's disconnected.
6836 * Which is a rather nutty api (since changed the output configuration
6837 * without userspace's explicit request can lead to confusion), but
6838 * alas. Hence we currently need to modeset on all pipes we prepare. */
6840 *modeset_pipes
= *prepare_pipes
;
6842 /* ... and mask these out. */
6843 *modeset_pipes
&= ~(*disable_pipes
);
6844 *prepare_pipes
&= ~(*disable_pipes
);
6847 static bool intel_crtc_in_use(struct drm_crtc
*crtc
)
6849 struct drm_encoder
*encoder
;
6850 struct drm_device
*dev
= crtc
->dev
;
6852 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
)
6853 if (encoder
->crtc
== crtc
)
6860 intel_modeset_update_state(struct drm_device
*dev
, unsigned prepare_pipes
)
6862 struct intel_encoder
*intel_encoder
;
6863 struct intel_crtc
*intel_crtc
;
6864 struct drm_connector
*connector
;
6866 list_for_each_entry(intel_encoder
, &dev
->mode_config
.encoder_list
,
6868 if (!intel_encoder
->base
.crtc
)
6871 intel_crtc
= to_intel_crtc(intel_encoder
->base
.crtc
);
6873 if (prepare_pipes
& (1 << intel_crtc
->pipe
))
6874 intel_encoder
->connectors_active
= false;
6877 intel_modeset_commit_output_state(dev
);
6879 /* Update computed state. */
6880 list_for_each_entry(intel_crtc
, &dev
->mode_config
.crtc_list
,
6882 intel_crtc
->base
.enabled
= intel_crtc_in_use(&intel_crtc
->base
);
6885 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
6886 if (!connector
->encoder
|| !connector
->encoder
->crtc
)
6889 intel_crtc
= to_intel_crtc(connector
->encoder
->crtc
);
6891 if (prepare_pipes
& (1 << intel_crtc
->pipe
)) {
6892 struct drm_property
*dpms_property
=
6893 dev
->mode_config
.dpms_property
;
6895 connector
->dpms
= DRM_MODE_DPMS_ON
;
6896 drm_connector_property_set_value(connector
,
6900 intel_encoder
= to_intel_encoder(connector
->encoder
);
6901 intel_encoder
->connectors_active
= true;
6907 #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
6908 list_for_each_entry((intel_crtc), \
6909 &(dev)->mode_config.crtc_list, \
6911 if (mask & (1 <<(intel_crtc)->pipe)) \
6914 intel_modeset_check_state(struct drm_device
*dev
)
6916 struct intel_crtc
*crtc
;
6917 struct intel_encoder
*encoder
;
6918 struct intel_connector
*connector
;
6920 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
6922 /* This also checks the encoder/connector hw state with the
6923 * ->get_hw_state callbacks. */
6924 intel_connector_check_state(connector
);
6926 WARN(&connector
->new_encoder
->base
!= connector
->base
.encoder
,
6927 "connector's staged encoder doesn't match current encoder\n");
6930 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
6932 bool enabled
= false;
6933 bool active
= false;
6934 enum pipe pipe
, tracked_pipe
;
6936 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
6937 encoder
->base
.base
.id
,
6938 drm_get_encoder_name(&encoder
->base
));
6940 WARN(&encoder
->new_crtc
->base
!= encoder
->base
.crtc
,
6941 "encoder's stage crtc doesn't match current crtc\n");
6942 WARN(encoder
->connectors_active
&& !encoder
->base
.crtc
,
6943 "encoder's active_connectors set, but no crtc\n");
6945 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
6947 if (connector
->base
.encoder
!= &encoder
->base
)
6950 if (connector
->base
.dpms
!= DRM_MODE_DPMS_OFF
)
6953 WARN(!!encoder
->base
.crtc
!= enabled
,
6954 "encoder's enabled state mismatch "
6955 "(expected %i, found %i)\n",
6956 !!encoder
->base
.crtc
, enabled
);
6957 WARN(active
&& !encoder
->base
.crtc
,
6958 "active encoder with no crtc\n");
6960 WARN(encoder
->connectors_active
!= active
,
6961 "encoder's computed active state doesn't match tracked active state "
6962 "(expected %i, found %i)\n", active
, encoder
->connectors_active
);
6964 active
= encoder
->get_hw_state(encoder
, &pipe
);
6965 WARN(active
!= encoder
->connectors_active
,
6966 "encoder's hw state doesn't match sw tracking "
6967 "(expected %i, found %i)\n",
6968 encoder
->connectors_active
, active
);
6970 if (!encoder
->base
.crtc
)
6973 tracked_pipe
= to_intel_crtc(encoder
->base
.crtc
)->pipe
;
6974 WARN(active
&& pipe
!= tracked_pipe
,
6975 "active encoder's pipe doesn't match"
6976 "(expected %i, found %i)\n",
6977 tracked_pipe
, pipe
);
6981 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
,
6983 bool enabled
= false;
6984 bool active
= false;
6986 DRM_DEBUG_KMS("[CRTC:%d]\n",
6987 crtc
->base
.base
.id
);
6989 WARN(crtc
->active
&& !crtc
->base
.enabled
,
6990 "active crtc, but not enabled in sw tracking\n");
6992 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
6994 if (encoder
->base
.crtc
!= &crtc
->base
)
6997 if (encoder
->connectors_active
)
7000 WARN(active
!= crtc
->active
,
7001 "crtc's computed active state doesn't match tracked active state "
7002 "(expected %i, found %i)\n", active
, crtc
->active
);
7003 WARN(enabled
!= crtc
->base
.enabled
,
7004 "crtc's computed enabled state doesn't match tracked enabled state "
7005 "(expected %i, found %i)\n", enabled
, crtc
->base
.enabled
);
7007 assert_pipe(dev
->dev_private
, crtc
->pipe
, crtc
->active
);
7011 bool intel_set_mode(struct drm_crtc
*crtc
,
7012 struct drm_display_mode
*mode
,
7013 int x
, int y
, struct drm_framebuffer
*fb
)
7015 struct drm_device
*dev
= crtc
->dev
;
7016 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
7017 struct drm_display_mode
*adjusted_mode
, saved_mode
, saved_hwmode
;
7018 struct drm_encoder_helper_funcs
*encoder_funcs
;
7019 struct drm_encoder
*encoder
;
7020 struct intel_crtc
*intel_crtc
;
7021 unsigned disable_pipes
, prepare_pipes
, modeset_pipes
;
7024 intel_modeset_affected_pipes(crtc
, &modeset_pipes
,
7025 &prepare_pipes
, &disable_pipes
);
7027 DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
7028 modeset_pipes
, prepare_pipes
, disable_pipes
);
7030 for_each_intel_crtc_masked(dev
, disable_pipes
, intel_crtc
)
7031 intel_crtc_disable(&intel_crtc
->base
);
7033 saved_hwmode
= crtc
->hwmode
;
7034 saved_mode
= crtc
->mode
;
7036 /* Hack: Because we don't (yet) support global modeset on multiple
7037 * crtcs, we don't keep track of the new mode for more than one crtc.
7038 * Hence simply check whether any bit is set in modeset_pipes in all the
7039 * pieces of code that are not yet converted to deal with mutliple crtcs
7040 * changing their mode at the same time. */
7041 adjusted_mode
= NULL
;
7042 if (modeset_pipes
) {
7043 adjusted_mode
= intel_modeset_adjusted_mode(crtc
, mode
);
7044 if (IS_ERR(adjusted_mode
)) {
7049 for_each_intel_crtc_masked(dev
, prepare_pipes
, intel_crtc
) {
7050 if (intel_crtc
->base
.enabled
)
7051 dev_priv
->display
.crtc_disable(&intel_crtc
->base
);
7054 /* crtc->mode is already used by the ->mode_set callbacks, hence we need
7055 * to set it here already despite that we pass it down the callchain.
7060 /* Only after disabling all output pipelines that will be changed can we
7061 * update the the output configuration. */
7062 intel_modeset_update_state(dev
, prepare_pipes
);
7064 /* Set up the DPLL and any encoders state that needs to adjust or depend
7067 for_each_intel_crtc_masked(dev
, modeset_pipes
, intel_crtc
) {
7068 ret
= !intel_crtc_mode_set(&intel_crtc
->base
,
7069 mode
, adjusted_mode
,
7074 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
) {
7076 if (encoder
->crtc
!= &intel_crtc
->base
)
7079 DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
7080 encoder
->base
.id
, drm_get_encoder_name(encoder
),
7081 mode
->base
.id
, mode
->name
);
7082 encoder_funcs
= encoder
->helper_private
;
7083 encoder_funcs
->mode_set(encoder
, mode
, adjusted_mode
);
7087 /* Now enable the clocks, plane, pipe, and connectors that we set up. */
7088 for_each_intel_crtc_masked(dev
, prepare_pipes
, intel_crtc
)
7089 dev_priv
->display
.crtc_enable(&intel_crtc
->base
);
7091 if (modeset_pipes
) {
7092 /* Store real post-adjustment hardware mode. */
7093 crtc
->hwmode
= *adjusted_mode
;
7095 /* Calculate and store various constants which
7096 * are later needed by vblank and swap-completion
7097 * timestamping. They are derived from true hwmode.
7099 drm_calc_timestamping_constants(crtc
);
7102 /* FIXME: add subpixel order */
7104 drm_mode_destroy(dev
, adjusted_mode
);
7105 if (!ret
&& crtc
->enabled
) {
7106 crtc
->hwmode
= saved_hwmode
;
7107 crtc
->mode
= saved_mode
;
7109 intel_modeset_check_state(dev
);
7115 #undef for_each_intel_crtc_masked
7117 static void intel_set_config_free(struct intel_set_config
*config
)
7122 kfree(config
->save_connector_encoders
);
7123 kfree(config
->save_encoder_crtcs
);
7127 static int intel_set_config_save_state(struct drm_device
*dev
,
7128 struct intel_set_config
*config
)
7130 struct drm_encoder
*encoder
;
7131 struct drm_connector
*connector
;
7134 config
->save_encoder_crtcs
=
7135 kcalloc(dev
->mode_config
.num_encoder
,
7136 sizeof(struct drm_crtc
*), GFP_KERNEL
);
7137 if (!config
->save_encoder_crtcs
)
7140 config
->save_connector_encoders
=
7141 kcalloc(dev
->mode_config
.num_connector
,
7142 sizeof(struct drm_encoder
*), GFP_KERNEL
);
7143 if (!config
->save_connector_encoders
)
7146 /* Copy data. Note that driver private data is not affected.
7147 * Should anything bad happen only the expected state is
7148 * restored, not the drivers personal bookkeeping.
7151 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
) {
7152 config
->save_encoder_crtcs
[count
++] = encoder
->crtc
;
7156 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
7157 config
->save_connector_encoders
[count
++] = connector
->encoder
;
7163 static void intel_set_config_restore_state(struct drm_device
*dev
,
7164 struct intel_set_config
*config
)
7166 struct intel_encoder
*encoder
;
7167 struct intel_connector
*connector
;
7171 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, base
.head
) {
7173 to_intel_crtc(config
->save_encoder_crtcs
[count
++]);
7177 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, base
.head
) {
7178 connector
->new_encoder
=
7179 to_intel_encoder(config
->save_connector_encoders
[count
++]);
7184 intel_set_config_compute_mode_changes(struct drm_mode_set
*set
,
7185 struct intel_set_config
*config
)
7188 /* We should be able to check here if the fb has the same properties
7189 * and then just flip_or_move it */
7190 if (set
->crtc
->fb
!= set
->fb
) {
7191 /* If we have no fb then treat it as a full mode set */
7192 if (set
->crtc
->fb
== NULL
) {
7193 DRM_DEBUG_KMS("crtc has no fb, full mode set\n");
7194 config
->mode_changed
= true;
7195 } else if (set
->fb
== NULL
) {
7196 config
->mode_changed
= true;
7197 } else if (set
->fb
->depth
!= set
->crtc
->fb
->depth
) {
7198 config
->mode_changed
= true;
7199 } else if (set
->fb
->bits_per_pixel
!=
7200 set
->crtc
->fb
->bits_per_pixel
) {
7201 config
->mode_changed
= true;
7203 config
->fb_changed
= true;
7206 if (set
->fb
&& (set
->x
!= set
->crtc
->x
|| set
->y
!= set
->crtc
->y
))
7207 config
->fb_changed
= true;
7209 if (set
->mode
&& !drm_mode_equal(set
->mode
, &set
->crtc
->mode
)) {
7210 DRM_DEBUG_KMS("modes are different, full mode set\n");
7211 drm_mode_debug_printmodeline(&set
->crtc
->mode
);
7212 drm_mode_debug_printmodeline(set
->mode
);
7213 config
->mode_changed
= true;
7218 intel_modeset_stage_output_state(struct drm_device
*dev
,
7219 struct drm_mode_set
*set
,
7220 struct intel_set_config
*config
)
7222 struct drm_crtc
*new_crtc
;
7223 struct intel_connector
*connector
;
7224 struct intel_encoder
*encoder
;
7227 /* The upper layers ensure that we either disabl a crtc or have a list
7228 * of connectors. For paranoia, double-check this. */
7229 WARN_ON(!set
->fb
&& (set
->num_connectors
!= 0));
7230 WARN_ON(set
->fb
&& (set
->num_connectors
== 0));
7233 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
7235 /* Otherwise traverse passed in connector list and get encoders
7237 for (ro
= 0; ro
< set
->num_connectors
; ro
++) {
7238 if (set
->connectors
[ro
] == &connector
->base
) {
7239 connector
->new_encoder
= connector
->encoder
;
7244 /* If we disable the crtc, disable all its connectors. Also, if
7245 * the connector is on the changing crtc but not on the new
7246 * connector list, disable it. */
7247 if ((!set
->fb
|| ro
== set
->num_connectors
) &&
7248 connector
->base
.encoder
&&
7249 connector
->base
.encoder
->crtc
== set
->crtc
) {
7250 connector
->new_encoder
= NULL
;
7252 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
7253 connector
->base
.base
.id
,
7254 drm_get_connector_name(&connector
->base
));
7258 if (&connector
->new_encoder
->base
!= connector
->base
.encoder
) {
7259 DRM_DEBUG_KMS("encoder changed, full mode switch\n");
7260 config
->mode_changed
= true;
7263 /* Disable all disconnected encoders. */
7264 if (connector
->base
.status
== connector_status_disconnected
)
7265 connector
->new_encoder
= NULL
;
7267 /* connector->new_encoder is now updated for all connectors. */
7269 /* Update crtc of enabled connectors. */
7271 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
7273 if (!connector
->new_encoder
)
7276 new_crtc
= connector
->new_encoder
->base
.crtc
;
7278 for (ro
= 0; ro
< set
->num_connectors
; ro
++) {
7279 if (set
->connectors
[ro
] == &connector
->base
)
7280 new_crtc
= set
->crtc
;
7283 /* Make sure the new CRTC will work with the encoder */
7284 if (!intel_encoder_crtc_ok(&connector
->new_encoder
->base
,
7288 connector
->encoder
->new_crtc
= to_intel_crtc(new_crtc
);
7290 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
7291 connector
->base
.base
.id
,
7292 drm_get_connector_name(&connector
->base
),
7296 /* Check for any encoders that needs to be disabled. */
7297 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
7299 list_for_each_entry(connector
,
7300 &dev
->mode_config
.connector_list
,
7302 if (connector
->new_encoder
== encoder
) {
7303 WARN_ON(!connector
->new_encoder
->new_crtc
);
7308 encoder
->new_crtc
= NULL
;
7310 /* Only now check for crtc changes so we don't miss encoders
7311 * that will be disabled. */
7312 if (&encoder
->new_crtc
->base
!= encoder
->base
.crtc
) {
7313 DRM_DEBUG_KMS("crtc changed, full mode switch\n");
7314 config
->mode_changed
= true;
7317 /* Now we've also updated encoder->new_crtc for all encoders. */
7322 static int intel_crtc_set_config(struct drm_mode_set
*set
)
7324 struct drm_device
*dev
;
7325 struct drm_mode_set save_set
;
7326 struct intel_set_config
*config
;
7331 BUG_ON(!set
->crtc
->helper_private
);
7336 /* The fb helper likes to play gross jokes with ->mode_set_config.
7337 * Unfortunately the crtc helper doesn't do much at all for this case,
7338 * so we have to cope with this madness until the fb helper is fixed up. */
7339 if (set
->fb
&& set
->num_connectors
== 0)
7343 DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
7344 set
->crtc
->base
.id
, set
->fb
->base
.id
,
7345 (int)set
->num_connectors
, set
->x
, set
->y
);
7347 DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set
->crtc
->base
.id
);
7350 dev
= set
->crtc
->dev
;
7353 config
= kzalloc(sizeof(*config
), GFP_KERNEL
);
7357 ret
= intel_set_config_save_state(dev
, config
);
7361 save_set
.crtc
= set
->crtc
;
7362 save_set
.mode
= &set
->crtc
->mode
;
7363 save_set
.x
= set
->crtc
->x
;
7364 save_set
.y
= set
->crtc
->y
;
7365 save_set
.fb
= set
->crtc
->fb
;
7367 /* Compute whether we need a full modeset, only an fb base update or no
7368 * change at all. In the future we might also check whether only the
7369 * mode changed, e.g. for LVDS where we only change the panel fitter in
7371 intel_set_config_compute_mode_changes(set
, config
);
7373 ret
= intel_modeset_stage_output_state(dev
, set
, config
);
7377 if (config
->mode_changed
) {
7379 DRM_DEBUG_KMS("attempting to set mode from"
7381 drm_mode_debug_printmodeline(set
->mode
);
7384 if (!intel_set_mode(set
->crtc
, set
->mode
,
7385 set
->x
, set
->y
, set
->fb
)) {
7386 DRM_ERROR("failed to set mode on [CRTC:%d]\n",
7387 set
->crtc
->base
.id
);
7391 } else if (config
->fb_changed
) {
7392 ret
= intel_pipe_set_base(set
->crtc
,
7393 set
->x
, set
->y
, set
->fb
);
7396 intel_set_config_free(config
);
7401 intel_set_config_restore_state(dev
, config
);
7403 /* Try to restore the config */
7404 if (config
->mode_changed
&&
7405 !intel_set_mode(save_set
.crtc
, save_set
.mode
,
7406 save_set
.x
, save_set
.y
, save_set
.fb
))
7407 DRM_ERROR("failed to restore config after modeset failure\n");
7410 intel_set_config_free(config
);
7414 static const struct drm_crtc_funcs intel_crtc_funcs
= {
7415 .cursor_set
= intel_crtc_cursor_set
,
7416 .cursor_move
= intel_crtc_cursor_move
,
7417 .gamma_set
= intel_crtc_gamma_set
,
7418 .set_config
= intel_crtc_set_config
,
7419 .destroy
= intel_crtc_destroy
,
7420 .page_flip
= intel_crtc_page_flip
,
7423 static void intel_pch_pll_init(struct drm_device
*dev
)
7425 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
7428 if (dev_priv
->num_pch_pll
== 0) {
7429 DRM_DEBUG_KMS("No PCH PLLs on this hardware, skipping initialisation\n");
7433 for (i
= 0; i
< dev_priv
->num_pch_pll
; i
++) {
7434 dev_priv
->pch_plls
[i
].pll_reg
= _PCH_DPLL(i
);
7435 dev_priv
->pch_plls
[i
].fp0_reg
= _PCH_FP0(i
);
7436 dev_priv
->pch_plls
[i
].fp1_reg
= _PCH_FP1(i
);
7440 static void intel_crtc_init(struct drm_device
*dev
, int pipe
)
7442 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
7443 struct intel_crtc
*intel_crtc
;
7446 intel_crtc
= kzalloc(sizeof(struct intel_crtc
) + (INTELFB_CONN_LIMIT
* sizeof(struct drm_connector
*)), GFP_KERNEL
);
7447 if (intel_crtc
== NULL
)
7450 drm_crtc_init(dev
, &intel_crtc
->base
, &intel_crtc_funcs
);
7452 drm_mode_crtc_set_gamma_size(&intel_crtc
->base
, 256);
7453 for (i
= 0; i
< 256; i
++) {
7454 intel_crtc
->lut_r
[i
] = i
;
7455 intel_crtc
->lut_g
[i
] = i
;
7456 intel_crtc
->lut_b
[i
] = i
;
7459 /* Swap pipes & planes for FBC on pre-965 */
7460 intel_crtc
->pipe
= pipe
;
7461 intel_crtc
->plane
= pipe
;
7462 if (IS_MOBILE(dev
) && IS_GEN3(dev
)) {
7463 DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
7464 intel_crtc
->plane
= !pipe
;
7467 BUG_ON(pipe
>= ARRAY_SIZE(dev_priv
->plane_to_crtc_mapping
) ||
7468 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] != NULL
);
7469 dev_priv
->plane_to_crtc_mapping
[intel_crtc
->plane
] = &intel_crtc
->base
;
7470 dev_priv
->pipe_to_crtc_mapping
[intel_crtc
->pipe
] = &intel_crtc
->base
;
7472 intel_crtc
->bpp
= 24; /* default for pre-Ironlake */
7474 drm_crtc_helper_add(&intel_crtc
->base
, &intel_helper_funcs
);
7477 int intel_get_pipe_from_crtc_id(struct drm_device
*dev
, void *data
,
7478 struct drm_file
*file
)
7480 struct drm_i915_get_pipe_from_crtc_id
*pipe_from_crtc_id
= data
;
7481 struct drm_mode_object
*drmmode_obj
;
7482 struct intel_crtc
*crtc
;
7484 if (!drm_core_check_feature(dev
, DRIVER_MODESET
))
7487 drmmode_obj
= drm_mode_object_find(dev
, pipe_from_crtc_id
->crtc_id
,
7488 DRM_MODE_OBJECT_CRTC
);
7491 DRM_ERROR("no such CRTC id\n");
7495 crtc
= to_intel_crtc(obj_to_crtc(drmmode_obj
));
7496 pipe_from_crtc_id
->pipe
= crtc
->pipe
;
7501 static int intel_encoder_clones(struct intel_encoder
*encoder
)
7503 struct drm_device
*dev
= encoder
->base
.dev
;
7504 struct intel_encoder
*source_encoder
;
7508 list_for_each_entry(source_encoder
,
7509 &dev
->mode_config
.encoder_list
, base
.head
) {
7511 if (encoder
== source_encoder
)
7512 index_mask
|= (1 << entry
);
7514 /* Intel hw has only one MUX where enocoders could be cloned. */
7515 if (encoder
->cloneable
&& source_encoder
->cloneable
)
7516 index_mask
|= (1 << entry
);
7524 static bool has_edp_a(struct drm_device
*dev
)
7526 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7528 if (!IS_MOBILE(dev
))
7531 if ((I915_READ(DP_A
) & DP_DETECTED
) == 0)
7535 (I915_READ(ILK_DISPLAY_CHICKEN_FUSES
) & ILK_eDP_A_DISABLE
))
7541 static void intel_setup_outputs(struct drm_device
*dev
)
7543 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7544 struct intel_encoder
*encoder
;
7545 bool dpd_is_edp
= false;
7548 has_lvds
= intel_lvds_init(dev
);
7549 if (!has_lvds
&& !HAS_PCH_SPLIT(dev
)) {
7550 /* disable the panel fitter on everything but LVDS */
7551 I915_WRITE(PFIT_CONTROL
, 0);
7554 if (HAS_PCH_SPLIT(dev
)) {
7555 dpd_is_edp
= intel_dpd_is_edp(dev
);
7558 intel_dp_init(dev
, DP_A
, PORT_A
);
7560 if (dpd_is_edp
&& (I915_READ(PCH_DP_D
) & DP_DETECTED
))
7561 intel_dp_init(dev
, PCH_DP_D
, PORT_D
);
7564 intel_crt_init(dev
);
7566 if (IS_HASWELL(dev
)) {
7569 /* Haswell uses DDI functions to detect digital outputs */
7570 found
= I915_READ(DDI_BUF_CTL_A
) & DDI_INIT_DISPLAY_DETECTED
;
7571 /* DDI A only supports eDP */
7573 intel_ddi_init(dev
, PORT_A
);
7575 /* DDI B, C and D detection is indicated by the SFUSE_STRAP
7577 found
= I915_READ(SFUSE_STRAP
);
7579 if (found
& SFUSE_STRAP_DDIB_DETECTED
)
7580 intel_ddi_init(dev
, PORT_B
);
7581 if (found
& SFUSE_STRAP_DDIC_DETECTED
)
7582 intel_ddi_init(dev
, PORT_C
);
7583 if (found
& SFUSE_STRAP_DDID_DETECTED
)
7584 intel_ddi_init(dev
, PORT_D
);
7585 } else if (HAS_PCH_SPLIT(dev
)) {
7588 if (I915_READ(HDMIB
) & PORT_DETECTED
) {
7589 /* PCH SDVOB multiplex with HDMIB */
7590 found
= intel_sdvo_init(dev
, PCH_SDVOB
, true);
7592 intel_hdmi_init(dev
, HDMIB
, PORT_B
);
7593 if (!found
&& (I915_READ(PCH_DP_B
) & DP_DETECTED
))
7594 intel_dp_init(dev
, PCH_DP_B
, PORT_B
);
7597 if (I915_READ(HDMIC
) & PORT_DETECTED
)
7598 intel_hdmi_init(dev
, HDMIC
, PORT_C
);
7600 if (!dpd_is_edp
&& I915_READ(HDMID
) & PORT_DETECTED
)
7601 intel_hdmi_init(dev
, HDMID
, PORT_D
);
7603 if (I915_READ(PCH_DP_C
) & DP_DETECTED
)
7604 intel_dp_init(dev
, PCH_DP_C
, PORT_C
);
7606 if (!dpd_is_edp
&& (I915_READ(PCH_DP_D
) & DP_DETECTED
))
7607 intel_dp_init(dev
, PCH_DP_D
, PORT_D
);
7608 } else if (IS_VALLEYVIEW(dev
)) {
7611 if (I915_READ(SDVOB
) & PORT_DETECTED
) {
7612 /* SDVOB multiplex with HDMIB */
7613 found
= intel_sdvo_init(dev
, SDVOB
, true);
7615 intel_hdmi_init(dev
, SDVOB
, PORT_B
);
7616 if (!found
&& (I915_READ(DP_B
) & DP_DETECTED
))
7617 intel_dp_init(dev
, DP_B
, PORT_B
);
7620 if (I915_READ(SDVOC
) & PORT_DETECTED
)
7621 intel_hdmi_init(dev
, SDVOC
, PORT_C
);
7623 /* Shares lanes with HDMI on SDVOC */
7624 if (I915_READ(DP_C
) & DP_DETECTED
)
7625 intel_dp_init(dev
, DP_C
, PORT_C
);
7626 } else if (SUPPORTS_DIGITAL_OUTPUTS(dev
)) {
7629 if (I915_READ(SDVOB
) & SDVO_DETECTED
) {
7630 DRM_DEBUG_KMS("probing SDVOB\n");
7631 found
= intel_sdvo_init(dev
, SDVOB
, true);
7632 if (!found
&& SUPPORTS_INTEGRATED_HDMI(dev
)) {
7633 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
7634 intel_hdmi_init(dev
, SDVOB
, PORT_B
);
7637 if (!found
&& SUPPORTS_INTEGRATED_DP(dev
)) {
7638 DRM_DEBUG_KMS("probing DP_B\n");
7639 intel_dp_init(dev
, DP_B
, PORT_B
);
7643 /* Before G4X SDVOC doesn't have its own detect register */
7645 if (I915_READ(SDVOB
) & SDVO_DETECTED
) {
7646 DRM_DEBUG_KMS("probing SDVOC\n");
7647 found
= intel_sdvo_init(dev
, SDVOC
, false);
7650 if (!found
&& (I915_READ(SDVOC
) & SDVO_DETECTED
)) {
7652 if (SUPPORTS_INTEGRATED_HDMI(dev
)) {
7653 DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
7654 intel_hdmi_init(dev
, SDVOC
, PORT_C
);
7656 if (SUPPORTS_INTEGRATED_DP(dev
)) {
7657 DRM_DEBUG_KMS("probing DP_C\n");
7658 intel_dp_init(dev
, DP_C
, PORT_C
);
7662 if (SUPPORTS_INTEGRATED_DP(dev
) &&
7663 (I915_READ(DP_D
) & DP_DETECTED
)) {
7664 DRM_DEBUG_KMS("probing DP_D\n");
7665 intel_dp_init(dev
, DP_D
, PORT_D
);
7667 } else if (IS_GEN2(dev
))
7668 intel_dvo_init(dev
);
7670 if (SUPPORTS_TV(dev
))
7673 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, base
.head
) {
7674 encoder
->base
.possible_crtcs
= encoder
->crtc_mask
;
7675 encoder
->base
.possible_clones
=
7676 intel_encoder_clones(encoder
);
7679 if (HAS_PCH_IBX(dev
) || HAS_PCH_CPT(dev
))
7680 ironlake_init_pch_refclk(dev
);
7683 static void intel_user_framebuffer_destroy(struct drm_framebuffer
*fb
)
7685 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
7687 drm_framebuffer_cleanup(fb
);
7688 drm_gem_object_unreference_unlocked(&intel_fb
->obj
->base
);
7693 static int intel_user_framebuffer_create_handle(struct drm_framebuffer
*fb
,
7694 struct drm_file
*file
,
7695 unsigned int *handle
)
7697 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
7698 struct drm_i915_gem_object
*obj
= intel_fb
->obj
;
7700 return drm_gem_handle_create(file
, &obj
->base
, handle
);
7703 static const struct drm_framebuffer_funcs intel_fb_funcs
= {
7704 .destroy
= intel_user_framebuffer_destroy
,
7705 .create_handle
= intel_user_framebuffer_create_handle
,
7708 int intel_framebuffer_init(struct drm_device
*dev
,
7709 struct intel_framebuffer
*intel_fb
,
7710 struct drm_mode_fb_cmd2
*mode_cmd
,
7711 struct drm_i915_gem_object
*obj
)
7715 if (obj
->tiling_mode
== I915_TILING_Y
)
7718 if (mode_cmd
->pitches
[0] & 63)
7721 switch (mode_cmd
->pixel_format
) {
7722 case DRM_FORMAT_RGB332
:
7723 case DRM_FORMAT_RGB565
:
7724 case DRM_FORMAT_XRGB8888
:
7725 case DRM_FORMAT_XBGR8888
:
7726 case DRM_FORMAT_ARGB8888
:
7727 case DRM_FORMAT_XRGB2101010
:
7728 case DRM_FORMAT_ARGB2101010
:
7729 /* RGB formats are common across chipsets */
7731 case DRM_FORMAT_YUYV
:
7732 case DRM_FORMAT_UYVY
:
7733 case DRM_FORMAT_YVYU
:
7734 case DRM_FORMAT_VYUY
:
7737 DRM_DEBUG_KMS("unsupported pixel format %u\n",
7738 mode_cmd
->pixel_format
);
7742 ret
= drm_framebuffer_init(dev
, &intel_fb
->base
, &intel_fb_funcs
);
7744 DRM_ERROR("framebuffer init failed %d\n", ret
);
7748 drm_helper_mode_fill_fb_struct(&intel_fb
->base
, mode_cmd
);
7749 intel_fb
->obj
= obj
;
7753 static struct drm_framebuffer
*
7754 intel_user_framebuffer_create(struct drm_device
*dev
,
7755 struct drm_file
*filp
,
7756 struct drm_mode_fb_cmd2
*mode_cmd
)
7758 struct drm_i915_gem_object
*obj
;
7760 obj
= to_intel_bo(drm_gem_object_lookup(dev
, filp
,
7761 mode_cmd
->handles
[0]));
7762 if (&obj
->base
== NULL
)
7763 return ERR_PTR(-ENOENT
);
7765 return intel_framebuffer_create(dev
, mode_cmd
, obj
);
7768 static const struct drm_mode_config_funcs intel_mode_funcs
= {
7769 .fb_create
= intel_user_framebuffer_create
,
7770 .output_poll_changed
= intel_fb_output_poll_changed
,
7773 /* Set up chip specific display functions */
7774 static void intel_init_display(struct drm_device
*dev
)
7776 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7778 /* We always want a DPMS function */
7779 if (HAS_PCH_SPLIT(dev
)) {
7780 dev_priv
->display
.crtc_mode_set
= ironlake_crtc_mode_set
;
7781 dev_priv
->display
.crtc_enable
= ironlake_crtc_enable
;
7782 dev_priv
->display
.crtc_disable
= ironlake_crtc_disable
;
7783 dev_priv
->display
.off
= ironlake_crtc_off
;
7784 dev_priv
->display
.update_plane
= ironlake_update_plane
;
7786 dev_priv
->display
.crtc_mode_set
= i9xx_crtc_mode_set
;
7787 dev_priv
->display
.crtc_enable
= i9xx_crtc_enable
;
7788 dev_priv
->display
.crtc_disable
= i9xx_crtc_disable
;
7789 dev_priv
->display
.off
= i9xx_crtc_off
;
7790 dev_priv
->display
.update_plane
= i9xx_update_plane
;
7793 /* Returns the core display clock speed */
7794 if (IS_VALLEYVIEW(dev
))
7795 dev_priv
->display
.get_display_clock_speed
=
7796 valleyview_get_display_clock_speed
;
7797 else if (IS_I945G(dev
) || (IS_G33(dev
) && !IS_PINEVIEW_M(dev
)))
7798 dev_priv
->display
.get_display_clock_speed
=
7799 i945_get_display_clock_speed
;
7800 else if (IS_I915G(dev
))
7801 dev_priv
->display
.get_display_clock_speed
=
7802 i915_get_display_clock_speed
;
7803 else if (IS_I945GM(dev
) || IS_845G(dev
) || IS_PINEVIEW_M(dev
))
7804 dev_priv
->display
.get_display_clock_speed
=
7805 i9xx_misc_get_display_clock_speed
;
7806 else if (IS_I915GM(dev
))
7807 dev_priv
->display
.get_display_clock_speed
=
7808 i915gm_get_display_clock_speed
;
7809 else if (IS_I865G(dev
))
7810 dev_priv
->display
.get_display_clock_speed
=
7811 i865_get_display_clock_speed
;
7812 else if (IS_I85X(dev
))
7813 dev_priv
->display
.get_display_clock_speed
=
7814 i855_get_display_clock_speed
;
7816 dev_priv
->display
.get_display_clock_speed
=
7817 i830_get_display_clock_speed
;
7819 if (HAS_PCH_SPLIT(dev
)) {
7821 dev_priv
->display
.fdi_link_train
= ironlake_fdi_link_train
;
7822 dev_priv
->display
.write_eld
= ironlake_write_eld
;
7823 } else if (IS_GEN6(dev
)) {
7824 dev_priv
->display
.fdi_link_train
= gen6_fdi_link_train
;
7825 dev_priv
->display
.write_eld
= ironlake_write_eld
;
7826 } else if (IS_IVYBRIDGE(dev
)) {
7827 /* FIXME: detect B0+ stepping and use auto training */
7828 dev_priv
->display
.fdi_link_train
= ivb_manual_fdi_link_train
;
7829 dev_priv
->display
.write_eld
= ironlake_write_eld
;
7830 } else if (IS_HASWELL(dev
)) {
7831 dev_priv
->display
.fdi_link_train
= hsw_fdi_link_train
;
7832 dev_priv
->display
.write_eld
= haswell_write_eld
;
7834 dev_priv
->display
.update_wm
= NULL
;
7835 } else if (IS_G4X(dev
)) {
7836 dev_priv
->display
.write_eld
= g4x_write_eld
;
7839 /* Default just returns -ENODEV to indicate unsupported */
7840 dev_priv
->display
.queue_flip
= intel_default_queue_flip
;
7842 switch (INTEL_INFO(dev
)->gen
) {
7844 dev_priv
->display
.queue_flip
= intel_gen2_queue_flip
;
7848 dev_priv
->display
.queue_flip
= intel_gen3_queue_flip
;
7853 dev_priv
->display
.queue_flip
= intel_gen4_queue_flip
;
7857 dev_priv
->display
.queue_flip
= intel_gen6_queue_flip
;
7860 dev_priv
->display
.queue_flip
= intel_gen7_queue_flip
;
7866 * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
7867 * resume, or other times. This quirk makes sure that's the case for
7870 static void quirk_pipea_force(struct drm_device
*dev
)
7872 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7874 dev_priv
->quirks
|= QUIRK_PIPEA_FORCE
;
7875 DRM_INFO("applying pipe a force quirk\n");
7879 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
7881 static void quirk_ssc_force_disable(struct drm_device
*dev
)
7883 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7884 dev_priv
->quirks
|= QUIRK_LVDS_SSC_DISABLE
;
7885 DRM_INFO("applying lvds SSC disable quirk\n");
7889 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
7892 static void quirk_invert_brightness(struct drm_device
*dev
)
7894 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7895 dev_priv
->quirks
|= QUIRK_INVERT_BRIGHTNESS
;
7896 DRM_INFO("applying inverted panel brightness quirk\n");
7899 struct intel_quirk
{
7901 int subsystem_vendor
;
7902 int subsystem_device
;
7903 void (*hook
)(struct drm_device
*dev
);
7906 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
7907 struct intel_dmi_quirk
{
7908 void (*hook
)(struct drm_device
*dev
);
7909 const struct dmi_system_id (*dmi_id_list
)[];
7912 static int intel_dmi_reverse_brightness(const struct dmi_system_id
*id
)
7914 DRM_INFO("Backlight polarity reversed on %s\n", id
->ident
);
7918 static const struct intel_dmi_quirk intel_dmi_quirks
[] = {
7920 .dmi_id_list
= &(const struct dmi_system_id
[]) {
7922 .callback
= intel_dmi_reverse_brightness
,
7923 .ident
= "NCR Corporation",
7924 .matches
= {DMI_MATCH(DMI_SYS_VENDOR
, "NCR Corporation"),
7925 DMI_MATCH(DMI_PRODUCT_NAME
, ""),
7928 { } /* terminating entry */
7930 .hook
= quirk_invert_brightness
,
7934 static struct intel_quirk intel_quirks
[] = {
7935 /* HP Mini needs pipe A force quirk (LP: #322104) */
7936 { 0x27ae, 0x103c, 0x361a, quirk_pipea_force
},
7938 /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
7939 { 0x2592, 0x1179, 0x0001, quirk_pipea_force
},
7941 /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
7942 { 0x2782, 0x17aa, 0x201a, quirk_pipea_force
},
7944 /* 830/845 need to leave pipe A & dpll A up */
7945 { 0x2562, PCI_ANY_ID
, PCI_ANY_ID
, quirk_pipea_force
},
7946 { 0x3577, PCI_ANY_ID
, PCI_ANY_ID
, quirk_pipea_force
},
7948 /* Lenovo U160 cannot use SSC on LVDS */
7949 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable
},
7951 /* Sony Vaio Y cannot use SSC on LVDS */
7952 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable
},
7954 /* Acer Aspire 5734Z must invert backlight brightness */
7955 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness
},
7958 static void intel_init_quirks(struct drm_device
*dev
)
7960 struct pci_dev
*d
= dev
->pdev
;
7963 for (i
= 0; i
< ARRAY_SIZE(intel_quirks
); i
++) {
7964 struct intel_quirk
*q
= &intel_quirks
[i
];
7966 if (d
->device
== q
->device
&&
7967 (d
->subsystem_vendor
== q
->subsystem_vendor
||
7968 q
->subsystem_vendor
== PCI_ANY_ID
) &&
7969 (d
->subsystem_device
== q
->subsystem_device
||
7970 q
->subsystem_device
== PCI_ANY_ID
))
7973 for (i
= 0; i
< ARRAY_SIZE(intel_dmi_quirks
); i
++) {
7974 if (dmi_check_system(*intel_dmi_quirks
[i
].dmi_id_list
) != 0)
7975 intel_dmi_quirks
[i
].hook(dev
);
7979 /* Disable the VGA plane that we never use */
7980 static void i915_disable_vga(struct drm_device
*dev
)
7982 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
7986 if (HAS_PCH_SPLIT(dev
))
7987 vga_reg
= CPU_VGACNTRL
;
7991 vga_get_uninterruptible(dev
->pdev
, VGA_RSRC_LEGACY_IO
);
7992 outb(SR01
, VGA_SR_INDEX
);
7993 sr1
= inb(VGA_SR_DATA
);
7994 outb(sr1
| 1<<5, VGA_SR_DATA
);
7995 vga_put(dev
->pdev
, VGA_RSRC_LEGACY_IO
);
7998 I915_WRITE(vga_reg
, VGA_DISP_DISABLE
);
7999 POSTING_READ(vga_reg
);
8002 void intel_modeset_init_hw(struct drm_device
*dev
)
8004 /* We attempt to init the necessary power wells early in the initialization
8005 * time, so the subsystems that expect power to be enabled can work.
8007 intel_init_power_wells(dev
);
8009 intel_prepare_ddi(dev
);
8011 intel_init_clock_gating(dev
);
8013 mutex_lock(&dev
->struct_mutex
);
8014 intel_enable_gt_powersave(dev
);
8015 mutex_unlock(&dev
->struct_mutex
);
8018 void intel_modeset_init(struct drm_device
*dev
)
8020 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8023 drm_mode_config_init(dev
);
8025 dev
->mode_config
.min_width
= 0;
8026 dev
->mode_config
.min_height
= 0;
8028 dev
->mode_config
.preferred_depth
= 24;
8029 dev
->mode_config
.prefer_shadow
= 1;
8031 dev
->mode_config
.funcs
= &intel_mode_funcs
;
8033 intel_init_quirks(dev
);
8037 intel_init_display(dev
);
8040 dev
->mode_config
.max_width
= 2048;
8041 dev
->mode_config
.max_height
= 2048;
8042 } else if (IS_GEN3(dev
)) {
8043 dev
->mode_config
.max_width
= 4096;
8044 dev
->mode_config
.max_height
= 4096;
8046 dev
->mode_config
.max_width
= 8192;
8047 dev
->mode_config
.max_height
= 8192;
8049 dev
->mode_config
.fb_base
= dev_priv
->mm
.gtt_base_addr
;
8051 DRM_DEBUG_KMS("%d display pipe%s available.\n",
8052 dev_priv
->num_pipe
, dev_priv
->num_pipe
> 1 ? "s" : "");
8054 for (i
= 0; i
< dev_priv
->num_pipe
; i
++) {
8055 intel_crtc_init(dev
, i
);
8056 ret
= intel_plane_init(dev
, i
);
8058 DRM_DEBUG_KMS("plane %d init failed: %d\n", i
, ret
);
8061 intel_pch_pll_init(dev
);
8063 /* Just disable it once at startup */
8064 i915_disable_vga(dev
);
8065 intel_setup_outputs(dev
);
8069 intel_connector_break_all_links(struct intel_connector
*connector
)
8071 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
8072 connector
->base
.encoder
= NULL
;
8073 connector
->encoder
->connectors_active
= false;
8074 connector
->encoder
->base
.crtc
= NULL
;
8077 static void intel_enable_pipe_a(struct drm_device
*dev
)
8079 struct intel_connector
*connector
;
8080 struct drm_connector
*crt
= NULL
;
8081 struct intel_load_detect_pipe load_detect_temp
;
8083 /* We can't just switch on the pipe A, we need to set things up with a
8084 * proper mode and output configuration. As a gross hack, enable pipe A
8085 * by enabling the load detect pipe once. */
8086 list_for_each_entry(connector
,
8087 &dev
->mode_config
.connector_list
,
8089 if (connector
->encoder
->type
== INTEL_OUTPUT_ANALOG
) {
8090 crt
= &connector
->base
;
8098 if (intel_get_load_detect_pipe(crt
, NULL
, &load_detect_temp
))
8099 intel_release_load_detect_pipe(crt
, &load_detect_temp
);
8105 intel_check_plane_mapping(struct intel_crtc
*crtc
)
8107 struct drm_i915_private
*dev_priv
= crtc
->base
.dev
->dev_private
;
8110 if (dev_priv
->num_pipe
== 1)
8113 reg
= DSPCNTR(!crtc
->plane
);
8114 val
= I915_READ(reg
);
8116 if ((val
& DISPLAY_PLANE_ENABLE
) &&
8117 (!!(val
& DISPPLANE_SEL_PIPE_MASK
) == crtc
->pipe
))
8123 static void intel_sanitize_crtc(struct intel_crtc
*crtc
)
8125 struct drm_device
*dev
= crtc
->base
.dev
;
8126 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8129 /* Clear any frame start delays used for debugging left by the BIOS */
8130 reg
= PIPECONF(crtc
->pipe
);
8131 I915_WRITE(reg
, I915_READ(reg
) & ~PIPECONF_FRAME_START_DELAY_MASK
);
8133 /* We need to sanitize the plane -> pipe mapping first because this will
8134 * disable the crtc (and hence change the state) if it is wrong. Note
8135 * that gen4+ has a fixed plane -> pipe mapping. */
8136 if (INTEL_INFO(dev
)->gen
< 4 && !intel_check_plane_mapping(crtc
)) {
8137 struct intel_connector
*connector
;
8140 DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
8141 crtc
->base
.base
.id
);
8143 /* Pipe has the wrong plane attached and the plane is active.
8144 * Temporarily change the plane mapping and disable everything
8146 plane
= crtc
->plane
;
8147 crtc
->plane
= !plane
;
8148 dev_priv
->display
.crtc_disable(&crtc
->base
);
8149 crtc
->plane
= plane
;
8151 /* ... and break all links. */
8152 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
8154 if (connector
->encoder
->base
.crtc
!= &crtc
->base
)
8157 intel_connector_break_all_links(connector
);
8160 WARN_ON(crtc
->active
);
8161 crtc
->base
.enabled
= false;
8164 if (dev_priv
->quirks
& QUIRK_PIPEA_FORCE
&&
8165 crtc
->pipe
== PIPE_A
&& !crtc
->active
) {
8166 /* BIOS forgot to enable pipe A, this mostly happens after
8167 * resume. Force-enable the pipe to fix this, the update_dpms
8168 * call below we restore the pipe to the right state, but leave
8169 * the required bits on. */
8170 intel_enable_pipe_a(dev
);
8173 /* Adjust the state of the output pipe according to whether we
8174 * have active connectors/encoders. */
8175 intel_crtc_update_dpms(&crtc
->base
);
8177 if (crtc
->active
!= crtc
->base
.enabled
) {
8178 struct intel_encoder
*encoder
;
8180 /* This can happen either due to bugs in the get_hw_state
8181 * functions or because the pipe is force-enabled due to the
8183 DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
8185 crtc
->base
.enabled
? "enabled" : "disabled",
8186 crtc
->active
? "enabled" : "disabled");
8188 crtc
->base
.enabled
= crtc
->active
;
8190 /* Because we only establish the connector -> encoder ->
8191 * crtc links if something is active, this means the
8192 * crtc is now deactivated. Break the links. connector
8193 * -> encoder links are only establish when things are
8194 * actually up, hence no need to break them. */
8195 WARN_ON(crtc
->active
);
8197 for_each_encoder_on_crtc(dev
, &crtc
->base
, encoder
) {
8198 WARN_ON(encoder
->connectors_active
);
8199 encoder
->base
.crtc
= NULL
;
8204 static void intel_sanitize_encoder(struct intel_encoder
*encoder
)
8206 struct intel_connector
*connector
;
8207 struct drm_device
*dev
= encoder
->base
.dev
;
8209 /* We need to check both for a crtc link (meaning that the
8210 * encoder is active and trying to read from a pipe) and the
8211 * pipe itself being active. */
8212 bool has_active_crtc
= encoder
->base
.crtc
&&
8213 to_intel_crtc(encoder
->base
.crtc
)->active
;
8215 if (encoder
->connectors_active
&& !has_active_crtc
) {
8216 DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
8217 encoder
->base
.base
.id
,
8218 drm_get_encoder_name(&encoder
->base
));
8220 /* Connector is active, but has no active pipe. This is
8221 * fallout from our resume register restoring. Disable
8222 * the encoder manually again. */
8223 if (encoder
->base
.crtc
) {
8224 DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
8225 encoder
->base
.base
.id
,
8226 drm_get_encoder_name(&encoder
->base
));
8227 encoder
->disable(encoder
);
8230 /* Inconsistent output/port/pipe state happens presumably due to
8231 * a bug in one of the get_hw_state functions. Or someplace else
8232 * in our code, like the register restore mess on resume. Clamp
8233 * things to off as a safer default. */
8234 list_for_each_entry(connector
,
8235 &dev
->mode_config
.connector_list
,
8237 if (connector
->encoder
!= encoder
)
8240 intel_connector_break_all_links(connector
);
8243 /* Enabled encoders without active connectors will be fixed in
8244 * the crtc fixup. */
8247 /* Scan out the current hw modeset state, sanitizes it and maps it into the drm
8248 * and i915 state tracking structures. */
8249 void intel_modeset_setup_hw_state(struct drm_device
*dev
)
8251 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8254 struct intel_crtc
*crtc
;
8255 struct intel_encoder
*encoder
;
8256 struct intel_connector
*connector
;
8258 for_each_pipe(pipe
) {
8259 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
8261 tmp
= I915_READ(PIPECONF(pipe
));
8262 if (tmp
& PIPECONF_ENABLE
)
8263 crtc
->active
= true;
8265 crtc
->active
= false;
8267 crtc
->base
.enabled
= crtc
->active
;
8269 DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
8271 crtc
->active
? "enabled" : "disabled");
8274 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
8278 if (encoder
->get_hw_state(encoder
, &pipe
)) {
8279 encoder
->base
.crtc
=
8280 dev_priv
->pipe_to_crtc_mapping
[pipe
];
8282 encoder
->base
.crtc
= NULL
;
8285 encoder
->connectors_active
= false;
8286 DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe=%i\n",
8287 encoder
->base
.base
.id
,
8288 drm_get_encoder_name(&encoder
->base
),
8289 encoder
->base
.crtc
? "enabled" : "disabled",
8293 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
8295 if (connector
->get_hw_state(connector
)) {
8296 connector
->base
.dpms
= DRM_MODE_DPMS_ON
;
8297 connector
->encoder
->connectors_active
= true;
8298 connector
->base
.encoder
= &connector
->encoder
->base
;
8300 connector
->base
.dpms
= DRM_MODE_DPMS_OFF
;
8301 connector
->base
.encoder
= NULL
;
8303 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
8304 connector
->base
.base
.id
,
8305 drm_get_connector_name(&connector
->base
),
8306 connector
->base
.encoder
? "enabled" : "disabled");
8309 /* HW state is read out, now we need to sanitize this mess. */
8310 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
,
8312 intel_sanitize_encoder(encoder
);
8315 for_each_pipe(pipe
) {
8316 crtc
= to_intel_crtc(dev_priv
->pipe_to_crtc_mapping
[pipe
]);
8317 intel_sanitize_crtc(crtc
);
8320 intel_modeset_update_staged_output_state(dev
);
8322 intel_modeset_check_state(dev
);
8325 void intel_modeset_gem_init(struct drm_device
*dev
)
8327 intel_modeset_init_hw(dev
);
8329 intel_setup_overlay(dev
);
8331 intel_modeset_setup_hw_state(dev
);
8334 void intel_modeset_cleanup(struct drm_device
*dev
)
8336 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8337 struct drm_crtc
*crtc
;
8338 struct intel_crtc
*intel_crtc
;
8340 drm_kms_helper_poll_fini(dev
);
8341 mutex_lock(&dev
->struct_mutex
);
8343 intel_unregister_dsm_handler();
8346 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
8347 /* Skip inactive CRTCs */
8351 intel_crtc
= to_intel_crtc(crtc
);
8352 intel_increase_pllclock(crtc
);
8355 intel_disable_fbc(dev
);
8357 intel_disable_gt_powersave(dev
);
8359 ironlake_teardown_rc6(dev
);
8361 if (IS_VALLEYVIEW(dev
))
8364 mutex_unlock(&dev
->struct_mutex
);
8366 /* Disable the irq before mode object teardown, for the irq might
8367 * enqueue unpin/hotplug work. */
8368 drm_irq_uninstall(dev
);
8369 cancel_work_sync(&dev_priv
->hotplug_work
);
8370 cancel_work_sync(&dev_priv
->rps
.work
);
8372 /* flush any delayed tasks or pending work */
8373 flush_scheduled_work();
8375 drm_mode_config_cleanup(dev
);
8379 * Return which encoder is currently attached for connector.
8381 struct drm_encoder
*intel_best_encoder(struct drm_connector
*connector
)
8383 return &intel_attached_encoder(connector
)->base
;
8386 void intel_connector_attach_encoder(struct intel_connector
*connector
,
8387 struct intel_encoder
*encoder
)
8389 connector
->encoder
= encoder
;
8390 drm_mode_connector_attach_encoder(&connector
->base
,
8395 * set vga decode state - true == enable VGA decode
8397 int intel_modeset_vga_set_state(struct drm_device
*dev
, bool state
)
8399 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
8402 pci_read_config_word(dev_priv
->bridge_dev
, INTEL_GMCH_CTRL
, &gmch_ctrl
);
8404 gmch_ctrl
&= ~INTEL_GMCH_VGA_DISABLE
;
8406 gmch_ctrl
|= INTEL_GMCH_VGA_DISABLE
;
8407 pci_write_config_word(dev_priv
->bridge_dev
, INTEL_GMCH_CTRL
, gmch_ctrl
);
8411 #ifdef CONFIG_DEBUG_FS
8412 #include <linux/seq_file.h>
8414 struct intel_display_error_state
{
8415 struct intel_cursor_error_state
{
8420 } cursor
[I915_MAX_PIPES
];
8422 struct intel_pipe_error_state
{
8432 } pipe
[I915_MAX_PIPES
];
8434 struct intel_plane_error_state
{
8442 } plane
[I915_MAX_PIPES
];
8445 struct intel_display_error_state
*
8446 intel_display_capture_error_state(struct drm_device
*dev
)
8448 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
8449 struct intel_display_error_state
*error
;
8452 error
= kmalloc(sizeof(*error
), GFP_ATOMIC
);
8457 error
->cursor
[i
].control
= I915_READ(CURCNTR(i
));
8458 error
->cursor
[i
].position
= I915_READ(CURPOS(i
));
8459 error
->cursor
[i
].base
= I915_READ(CURBASE(i
));
8461 error
->plane
[i
].control
= I915_READ(DSPCNTR(i
));
8462 error
->plane
[i
].stride
= I915_READ(DSPSTRIDE(i
));
8463 error
->plane
[i
].size
= I915_READ(DSPSIZE(i
));
8464 error
->plane
[i
].pos
= I915_READ(DSPPOS(i
));
8465 error
->plane
[i
].addr
= I915_READ(DSPADDR(i
));
8466 if (INTEL_INFO(dev
)->gen
>= 4) {
8467 error
->plane
[i
].surface
= I915_READ(DSPSURF(i
));
8468 error
->plane
[i
].tile_offset
= I915_READ(DSPTILEOFF(i
));
8471 error
->pipe
[i
].conf
= I915_READ(PIPECONF(i
));
8472 error
->pipe
[i
].source
= I915_READ(PIPESRC(i
));
8473 error
->pipe
[i
].htotal
= I915_READ(HTOTAL(i
));
8474 error
->pipe
[i
].hblank
= I915_READ(HBLANK(i
));
8475 error
->pipe
[i
].hsync
= I915_READ(HSYNC(i
));
8476 error
->pipe
[i
].vtotal
= I915_READ(VTOTAL(i
));
8477 error
->pipe
[i
].vblank
= I915_READ(VBLANK(i
));
8478 error
->pipe
[i
].vsync
= I915_READ(VSYNC(i
));
8485 intel_display_print_error_state(struct seq_file
*m
,
8486 struct drm_device
*dev
,
8487 struct intel_display_error_state
*error
)
8489 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
8492 seq_printf(m
, "Num Pipes: %d\n", dev_priv
->num_pipe
);
8494 seq_printf(m
, "Pipe [%d]:\n", i
);
8495 seq_printf(m
, " CONF: %08x\n", error
->pipe
[i
].conf
);
8496 seq_printf(m
, " SRC: %08x\n", error
->pipe
[i
].source
);
8497 seq_printf(m
, " HTOTAL: %08x\n", error
->pipe
[i
].htotal
);
8498 seq_printf(m
, " HBLANK: %08x\n", error
->pipe
[i
].hblank
);
8499 seq_printf(m
, " HSYNC: %08x\n", error
->pipe
[i
].hsync
);
8500 seq_printf(m
, " VTOTAL: %08x\n", error
->pipe
[i
].vtotal
);
8501 seq_printf(m
, " VBLANK: %08x\n", error
->pipe
[i
].vblank
);
8502 seq_printf(m
, " VSYNC: %08x\n", error
->pipe
[i
].vsync
);
8504 seq_printf(m
, "Plane [%d]:\n", i
);
8505 seq_printf(m
, " CNTR: %08x\n", error
->plane
[i
].control
);
8506 seq_printf(m
, " STRIDE: %08x\n", error
->plane
[i
].stride
);
8507 seq_printf(m
, " SIZE: %08x\n", error
->plane
[i
].size
);
8508 seq_printf(m
, " POS: %08x\n", error
->plane
[i
].pos
);
8509 seq_printf(m
, " ADDR: %08x\n", error
->plane
[i
].addr
);
8510 if (INTEL_INFO(dev
)->gen
>= 4) {
8511 seq_printf(m
, " SURF: %08x\n", error
->plane
[i
].surface
);
8512 seq_printf(m
, " TILEOFF: %08x\n", error
->plane
[i
].tile_offset
);
8515 seq_printf(m
, "Cursor [%d]:\n", i
);
8516 seq_printf(m
, " CNTR: %08x\n", error
->cursor
[i
].control
);
8517 seq_printf(m
, " POS: %08x\n", error
->cursor
[i
].position
);
8518 seq_printf(m
, " BASE: %08x\n", error
->cursor
[i
].base
);