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79e53945 JB |
1 | /* |
2 | * Copyright © 2006-2007 Intel Corporation | |
3 | * | |
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: | |
10 | * | |
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 | |
13 | * Software. | |
14 | * | |
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. | |
22 | * | |
23 | * Authors: | |
24 | * Eric Anholt <eric@anholt.net> | |
25 | */ | |
26 | ||
618563e3 | 27 | #include <linux/dmi.h> |
c1c7af60 JB |
28 | #include <linux/module.h> |
29 | #include <linux/input.h> | |
79e53945 | 30 | #include <linux/i2c.h> |
7662c8bd | 31 | #include <linux/kernel.h> |
5a0e3ad6 | 32 | #include <linux/slab.h> |
9cce37f4 | 33 | #include <linux/vgaarb.h> |
e0dac65e | 34 | #include <drm/drm_edid.h> |
79e53945 JB |
35 | #include "drmP.h" |
36 | #include "intel_drv.h" | |
37 | #include "i915_drm.h" | |
38 | #include "i915_drv.h" | |
e5510fac | 39 | #include "i915_trace.h" |
ab2c0672 | 40 | #include "drm_dp_helper.h" |
79e53945 | 41 | #include "drm_crtc_helper.h" |
c0f372b3 | 42 | #include <linux/dma_remapping.h> |
79e53945 | 43 | |
32f9d658 ZW |
44 | #define HAS_eDP (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) |
45 | ||
0206e353 | 46 | bool intel_pipe_has_type(struct drm_crtc *crtc, int type); |
3dec0095 | 47 | static void intel_increase_pllclock(struct drm_crtc *crtc); |
6b383a7f | 48 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on); |
79e53945 JB |
49 | |
50 | typedef struct { | |
0206e353 AJ |
51 | /* given values */ |
52 | int n; | |
53 | int m1, m2; | |
54 | int p1, p2; | |
55 | /* derived values */ | |
56 | int dot; | |
57 | int vco; | |
58 | int m; | |
59 | int p; | |
79e53945 JB |
60 | } intel_clock_t; |
61 | ||
62 | typedef struct { | |
0206e353 | 63 | int min, max; |
79e53945 JB |
64 | } intel_range_t; |
65 | ||
66 | typedef struct { | |
0206e353 AJ |
67 | int dot_limit; |
68 | int p2_slow, p2_fast; | |
79e53945 JB |
69 | } intel_p2_t; |
70 | ||
71 | #define INTEL_P2_NUM 2 | |
d4906093 ML |
72 | typedef struct intel_limit intel_limit_t; |
73 | struct intel_limit { | |
0206e353 AJ |
74 | intel_range_t dot, vco, n, m, m1, m2, p, p1; |
75 | intel_p2_t p2; | |
76 | bool (* find_pll)(const intel_limit_t *, struct drm_crtc *, | |
cec2f356 | 77 | int, int, intel_clock_t *, intel_clock_t *); |
d4906093 | 78 | }; |
79e53945 | 79 | |
2377b741 JB |
80 | /* FDI */ |
81 | #define IRONLAKE_FDI_FREQ 2700000 /* in kHz for mode->clock */ | |
82 | ||
d4906093 ML |
83 | static bool |
84 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
85 | int target, int refclk, intel_clock_t *match_clock, |
86 | intel_clock_t *best_clock); | |
d4906093 ML |
87 | static bool |
88 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
89 | int target, int refclk, intel_clock_t *match_clock, |
90 | intel_clock_t *best_clock); | |
79e53945 | 91 | |
a4fc5ed6 KP |
92 | static bool |
93 | intel_find_pll_g4x_dp(const intel_limit_t *, struct drm_crtc *crtc, | |
cec2f356 SP |
94 | int target, int refclk, intel_clock_t *match_clock, |
95 | intel_clock_t *best_clock); | |
5eb08b69 | 96 | static bool |
f2b115e6 | 97 | intel_find_pll_ironlake_dp(const intel_limit_t *, struct drm_crtc *crtc, |
cec2f356 SP |
98 | int target, int refclk, intel_clock_t *match_clock, |
99 | intel_clock_t *best_clock); | |
a4fc5ed6 | 100 | |
021357ac CW |
101 | static inline u32 /* units of 100MHz */ |
102 | intel_fdi_link_freq(struct drm_device *dev) | |
103 | { | |
8b99e68c CW |
104 | if (IS_GEN5(dev)) { |
105 | struct drm_i915_private *dev_priv = dev->dev_private; | |
106 | return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2; | |
107 | } else | |
108 | return 27; | |
021357ac CW |
109 | } |
110 | ||
e4b36699 | 111 | static const intel_limit_t intel_limits_i8xx_dvo = { |
0206e353 AJ |
112 | .dot = { .min = 25000, .max = 350000 }, |
113 | .vco = { .min = 930000, .max = 1400000 }, | |
114 | .n = { .min = 3, .max = 16 }, | |
115 | .m = { .min = 96, .max = 140 }, | |
116 | .m1 = { .min = 18, .max = 26 }, | |
117 | .m2 = { .min = 6, .max = 16 }, | |
118 | .p = { .min = 4, .max = 128 }, | |
119 | .p1 = { .min = 2, .max = 33 }, | |
273e27ca EA |
120 | .p2 = { .dot_limit = 165000, |
121 | .p2_slow = 4, .p2_fast = 2 }, | |
d4906093 | 122 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
123 | }; |
124 | ||
125 | static const intel_limit_t intel_limits_i8xx_lvds = { | |
0206e353 AJ |
126 | .dot = { .min = 25000, .max = 350000 }, |
127 | .vco = { .min = 930000, .max = 1400000 }, | |
128 | .n = { .min = 3, .max = 16 }, | |
129 | .m = { .min = 96, .max = 140 }, | |
130 | .m1 = { .min = 18, .max = 26 }, | |
131 | .m2 = { .min = 6, .max = 16 }, | |
132 | .p = { .min = 4, .max = 128 }, | |
133 | .p1 = { .min = 1, .max = 6 }, | |
273e27ca EA |
134 | .p2 = { .dot_limit = 165000, |
135 | .p2_slow = 14, .p2_fast = 7 }, | |
d4906093 | 136 | .find_pll = intel_find_best_PLL, |
e4b36699 | 137 | }; |
273e27ca | 138 | |
e4b36699 | 139 | static const intel_limit_t intel_limits_i9xx_sdvo = { |
0206e353 AJ |
140 | .dot = { .min = 20000, .max = 400000 }, |
141 | .vco = { .min = 1400000, .max = 2800000 }, | |
142 | .n = { .min = 1, .max = 6 }, | |
143 | .m = { .min = 70, .max = 120 }, | |
144 | .m1 = { .min = 10, .max = 22 }, | |
145 | .m2 = { .min = 5, .max = 9 }, | |
146 | .p = { .min = 5, .max = 80 }, | |
147 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
148 | .p2 = { .dot_limit = 200000, |
149 | .p2_slow = 10, .p2_fast = 5 }, | |
d4906093 | 150 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
151 | }; |
152 | ||
153 | static const intel_limit_t intel_limits_i9xx_lvds = { | |
0206e353 AJ |
154 | .dot = { .min = 20000, .max = 400000 }, |
155 | .vco = { .min = 1400000, .max = 2800000 }, | |
156 | .n = { .min = 1, .max = 6 }, | |
157 | .m = { .min = 70, .max = 120 }, | |
158 | .m1 = { .min = 10, .max = 22 }, | |
159 | .m2 = { .min = 5, .max = 9 }, | |
160 | .p = { .min = 7, .max = 98 }, | |
161 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
162 | .p2 = { .dot_limit = 112000, |
163 | .p2_slow = 14, .p2_fast = 7 }, | |
d4906093 | 164 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
165 | }; |
166 | ||
273e27ca | 167 | |
e4b36699 | 168 | static const intel_limit_t intel_limits_g4x_sdvo = { |
273e27ca EA |
169 | .dot = { .min = 25000, .max = 270000 }, |
170 | .vco = { .min = 1750000, .max = 3500000}, | |
171 | .n = { .min = 1, .max = 4 }, | |
172 | .m = { .min = 104, .max = 138 }, | |
173 | .m1 = { .min = 17, .max = 23 }, | |
174 | .m2 = { .min = 5, .max = 11 }, | |
175 | .p = { .min = 10, .max = 30 }, | |
176 | .p1 = { .min = 1, .max = 3}, | |
177 | .p2 = { .dot_limit = 270000, | |
178 | .p2_slow = 10, | |
179 | .p2_fast = 10 | |
044c7c41 | 180 | }, |
d4906093 | 181 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
182 | }; |
183 | ||
184 | static const intel_limit_t intel_limits_g4x_hdmi = { | |
273e27ca EA |
185 | .dot = { .min = 22000, .max = 400000 }, |
186 | .vco = { .min = 1750000, .max = 3500000}, | |
187 | .n = { .min = 1, .max = 4 }, | |
188 | .m = { .min = 104, .max = 138 }, | |
189 | .m1 = { .min = 16, .max = 23 }, | |
190 | .m2 = { .min = 5, .max = 11 }, | |
191 | .p = { .min = 5, .max = 80 }, | |
192 | .p1 = { .min = 1, .max = 8}, | |
193 | .p2 = { .dot_limit = 165000, | |
194 | .p2_slow = 10, .p2_fast = 5 }, | |
d4906093 | 195 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
196 | }; |
197 | ||
198 | static const intel_limit_t intel_limits_g4x_single_channel_lvds = { | |
273e27ca EA |
199 | .dot = { .min = 20000, .max = 115000 }, |
200 | .vco = { .min = 1750000, .max = 3500000 }, | |
201 | .n = { .min = 1, .max = 3 }, | |
202 | .m = { .min = 104, .max = 138 }, | |
203 | .m1 = { .min = 17, .max = 23 }, | |
204 | .m2 = { .min = 5, .max = 11 }, | |
205 | .p = { .min = 28, .max = 112 }, | |
206 | .p1 = { .min = 2, .max = 8 }, | |
207 | .p2 = { .dot_limit = 0, | |
208 | .p2_slow = 14, .p2_fast = 14 | |
044c7c41 | 209 | }, |
d4906093 | 210 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
211 | }; |
212 | ||
213 | static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { | |
273e27ca EA |
214 | .dot = { .min = 80000, .max = 224000 }, |
215 | .vco = { .min = 1750000, .max = 3500000 }, | |
216 | .n = { .min = 1, .max = 3 }, | |
217 | .m = { .min = 104, .max = 138 }, | |
218 | .m1 = { .min = 17, .max = 23 }, | |
219 | .m2 = { .min = 5, .max = 11 }, | |
220 | .p = { .min = 14, .max = 42 }, | |
221 | .p1 = { .min = 2, .max = 6 }, | |
222 | .p2 = { .dot_limit = 0, | |
223 | .p2_slow = 7, .p2_fast = 7 | |
044c7c41 | 224 | }, |
d4906093 | 225 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
226 | }; |
227 | ||
228 | static const intel_limit_t intel_limits_g4x_display_port = { | |
0206e353 AJ |
229 | .dot = { .min = 161670, .max = 227000 }, |
230 | .vco = { .min = 1750000, .max = 3500000}, | |
231 | .n = { .min = 1, .max = 2 }, | |
232 | .m = { .min = 97, .max = 108 }, | |
233 | .m1 = { .min = 0x10, .max = 0x12 }, | |
234 | .m2 = { .min = 0x05, .max = 0x06 }, | |
235 | .p = { .min = 10, .max = 20 }, | |
236 | .p1 = { .min = 1, .max = 2}, | |
237 | .p2 = { .dot_limit = 0, | |
273e27ca | 238 | .p2_slow = 10, .p2_fast = 10 }, |
0206e353 | 239 | .find_pll = intel_find_pll_g4x_dp, |
e4b36699 KP |
240 | }; |
241 | ||
f2b115e6 | 242 | static const intel_limit_t intel_limits_pineview_sdvo = { |
0206e353 AJ |
243 | .dot = { .min = 20000, .max = 400000}, |
244 | .vco = { .min = 1700000, .max = 3500000 }, | |
273e27ca | 245 | /* Pineview's Ncounter is a ring counter */ |
0206e353 AJ |
246 | .n = { .min = 3, .max = 6 }, |
247 | .m = { .min = 2, .max = 256 }, | |
273e27ca | 248 | /* Pineview only has one combined m divider, which we treat as m2. */ |
0206e353 AJ |
249 | .m1 = { .min = 0, .max = 0 }, |
250 | .m2 = { .min = 0, .max = 254 }, | |
251 | .p = { .min = 5, .max = 80 }, | |
252 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
253 | .p2 = { .dot_limit = 200000, |
254 | .p2_slow = 10, .p2_fast = 5 }, | |
6115707b | 255 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
256 | }; |
257 | ||
f2b115e6 | 258 | static const intel_limit_t intel_limits_pineview_lvds = { |
0206e353 AJ |
259 | .dot = { .min = 20000, .max = 400000 }, |
260 | .vco = { .min = 1700000, .max = 3500000 }, | |
261 | .n = { .min = 3, .max = 6 }, | |
262 | .m = { .min = 2, .max = 256 }, | |
263 | .m1 = { .min = 0, .max = 0 }, | |
264 | .m2 = { .min = 0, .max = 254 }, | |
265 | .p = { .min = 7, .max = 112 }, | |
266 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
267 | .p2 = { .dot_limit = 112000, |
268 | .p2_slow = 14, .p2_fast = 14 }, | |
6115707b | 269 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
270 | }; |
271 | ||
273e27ca EA |
272 | /* Ironlake / Sandybridge |
273 | * | |
274 | * We calculate clock using (register_value + 2) for N/M1/M2, so here | |
275 | * the range value for them is (actual_value - 2). | |
276 | */ | |
b91ad0ec | 277 | static const intel_limit_t intel_limits_ironlake_dac = { |
273e27ca EA |
278 | .dot = { .min = 25000, .max = 350000 }, |
279 | .vco = { .min = 1760000, .max = 3510000 }, | |
280 | .n = { .min = 1, .max = 5 }, | |
281 | .m = { .min = 79, .max = 127 }, | |
282 | .m1 = { .min = 12, .max = 22 }, | |
283 | .m2 = { .min = 5, .max = 9 }, | |
284 | .p = { .min = 5, .max = 80 }, | |
285 | .p1 = { .min = 1, .max = 8 }, | |
286 | .p2 = { .dot_limit = 225000, | |
287 | .p2_slow = 10, .p2_fast = 5 }, | |
4547668a | 288 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
289 | }; |
290 | ||
b91ad0ec | 291 | static const intel_limit_t intel_limits_ironlake_single_lvds = { |
273e27ca EA |
292 | .dot = { .min = 25000, .max = 350000 }, |
293 | .vco = { .min = 1760000, .max = 3510000 }, | |
294 | .n = { .min = 1, .max = 3 }, | |
295 | .m = { .min = 79, .max = 118 }, | |
296 | .m1 = { .min = 12, .max = 22 }, | |
297 | .m2 = { .min = 5, .max = 9 }, | |
298 | .p = { .min = 28, .max = 112 }, | |
299 | .p1 = { .min = 2, .max = 8 }, | |
300 | .p2 = { .dot_limit = 225000, | |
301 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
302 | .find_pll = intel_g4x_find_best_PLL, |
303 | }; | |
304 | ||
305 | static const intel_limit_t intel_limits_ironlake_dual_lvds = { | |
273e27ca EA |
306 | .dot = { .min = 25000, .max = 350000 }, |
307 | .vco = { .min = 1760000, .max = 3510000 }, | |
308 | .n = { .min = 1, .max = 3 }, | |
309 | .m = { .min = 79, .max = 127 }, | |
310 | .m1 = { .min = 12, .max = 22 }, | |
311 | .m2 = { .min = 5, .max = 9 }, | |
312 | .p = { .min = 14, .max = 56 }, | |
313 | .p1 = { .min = 2, .max = 8 }, | |
314 | .p2 = { .dot_limit = 225000, | |
315 | .p2_slow = 7, .p2_fast = 7 }, | |
b91ad0ec ZW |
316 | .find_pll = intel_g4x_find_best_PLL, |
317 | }; | |
318 | ||
273e27ca | 319 | /* LVDS 100mhz refclk limits. */ |
b91ad0ec | 320 | static const intel_limit_t intel_limits_ironlake_single_lvds_100m = { |
273e27ca EA |
321 | .dot = { .min = 25000, .max = 350000 }, |
322 | .vco = { .min = 1760000, .max = 3510000 }, | |
323 | .n = { .min = 1, .max = 2 }, | |
324 | .m = { .min = 79, .max = 126 }, | |
325 | .m1 = { .min = 12, .max = 22 }, | |
326 | .m2 = { .min = 5, .max = 9 }, | |
327 | .p = { .min = 28, .max = 112 }, | |
0206e353 | 328 | .p1 = { .min = 2, .max = 8 }, |
273e27ca EA |
329 | .p2 = { .dot_limit = 225000, |
330 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
331 | .find_pll = intel_g4x_find_best_PLL, |
332 | }; | |
333 | ||
334 | static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = { | |
273e27ca EA |
335 | .dot = { .min = 25000, .max = 350000 }, |
336 | .vco = { .min = 1760000, .max = 3510000 }, | |
337 | .n = { .min = 1, .max = 3 }, | |
338 | .m = { .min = 79, .max = 126 }, | |
339 | .m1 = { .min = 12, .max = 22 }, | |
340 | .m2 = { .min = 5, .max = 9 }, | |
341 | .p = { .min = 14, .max = 42 }, | |
0206e353 | 342 | .p1 = { .min = 2, .max = 6 }, |
273e27ca EA |
343 | .p2 = { .dot_limit = 225000, |
344 | .p2_slow = 7, .p2_fast = 7 }, | |
4547668a ZY |
345 | .find_pll = intel_g4x_find_best_PLL, |
346 | }; | |
347 | ||
348 | static const intel_limit_t intel_limits_ironlake_display_port = { | |
0206e353 AJ |
349 | .dot = { .min = 25000, .max = 350000 }, |
350 | .vco = { .min = 1760000, .max = 3510000}, | |
351 | .n = { .min = 1, .max = 2 }, | |
352 | .m = { .min = 81, .max = 90 }, | |
353 | .m1 = { .min = 12, .max = 22 }, | |
354 | .m2 = { .min = 5, .max = 9 }, | |
355 | .p = { .min = 10, .max = 20 }, | |
356 | .p1 = { .min = 1, .max = 2}, | |
357 | .p2 = { .dot_limit = 0, | |
273e27ca | 358 | .p2_slow = 10, .p2_fast = 10 }, |
0206e353 | 359 | .find_pll = intel_find_pll_ironlake_dp, |
79e53945 JB |
360 | }; |
361 | ||
57f350b6 JB |
362 | u32 intel_dpio_read(struct drm_i915_private *dev_priv, int reg) |
363 | { | |
364 | unsigned long flags; | |
365 | u32 val = 0; | |
366 | ||
367 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
368 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) { | |
369 | DRM_ERROR("DPIO idle wait timed out\n"); | |
370 | goto out_unlock; | |
371 | } | |
372 | ||
373 | I915_WRITE(DPIO_REG, reg); | |
374 | I915_WRITE(DPIO_PKT, DPIO_RID | DPIO_OP_READ | DPIO_PORTID | | |
375 | DPIO_BYTE); | |
376 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) { | |
377 | DRM_ERROR("DPIO read wait timed out\n"); | |
378 | goto out_unlock; | |
379 | } | |
380 | val = I915_READ(DPIO_DATA); | |
381 | ||
382 | out_unlock: | |
383 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
384 | return val; | |
385 | } | |
386 | ||
57f350b6 JB |
387 | static void vlv_init_dpio(struct drm_device *dev) |
388 | { | |
389 | struct drm_i915_private *dev_priv = dev->dev_private; | |
390 | ||
391 | /* Reset the DPIO config */ | |
392 | I915_WRITE(DPIO_CTL, 0); | |
393 | POSTING_READ(DPIO_CTL); | |
394 | I915_WRITE(DPIO_CTL, 1); | |
395 | POSTING_READ(DPIO_CTL); | |
396 | } | |
397 | ||
618563e3 DV |
398 | static int intel_dual_link_lvds_callback(const struct dmi_system_id *id) |
399 | { | |
400 | DRM_INFO("Forcing lvds to dual link mode on %s\n", id->ident); | |
401 | return 1; | |
402 | } | |
403 | ||
404 | static const struct dmi_system_id intel_dual_link_lvds[] = { | |
405 | { | |
406 | .callback = intel_dual_link_lvds_callback, | |
407 | .ident = "Apple MacBook Pro (Core i5/i7 Series)", | |
408 | .matches = { | |
409 | DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), | |
410 | DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro8,2"), | |
411 | }, | |
412 | }, | |
413 | { } /* terminating entry */ | |
414 | }; | |
415 | ||
b0354385 TI |
416 | static bool is_dual_link_lvds(struct drm_i915_private *dev_priv, |
417 | unsigned int reg) | |
418 | { | |
419 | unsigned int val; | |
420 | ||
121d527a TI |
421 | /* use the module option value if specified */ |
422 | if (i915_lvds_channel_mode > 0) | |
423 | return i915_lvds_channel_mode == 2; | |
424 | ||
618563e3 DV |
425 | if (dmi_check_system(intel_dual_link_lvds)) |
426 | return true; | |
427 | ||
b0354385 TI |
428 | if (dev_priv->lvds_val) |
429 | val = dev_priv->lvds_val; | |
430 | else { | |
431 | /* BIOS should set the proper LVDS register value at boot, but | |
432 | * in reality, it doesn't set the value when the lid is closed; | |
433 | * we need to check "the value to be set" in VBT when LVDS | |
434 | * register is uninitialized. | |
435 | */ | |
436 | val = I915_READ(reg); | |
437 | if (!(val & ~LVDS_DETECTED)) | |
438 | val = dev_priv->bios_lvds_val; | |
439 | dev_priv->lvds_val = val; | |
440 | } | |
441 | return (val & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP; | |
442 | } | |
443 | ||
1b894b59 CW |
444 | static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc, |
445 | int refclk) | |
2c07245f | 446 | { |
b91ad0ec ZW |
447 | struct drm_device *dev = crtc->dev; |
448 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2c07245f | 449 | const intel_limit_t *limit; |
b91ad0ec ZW |
450 | |
451 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
b0354385 | 452 | if (is_dual_link_lvds(dev_priv, PCH_LVDS)) { |
b91ad0ec | 453 | /* LVDS dual channel */ |
1b894b59 | 454 | if (refclk == 100000) |
b91ad0ec ZW |
455 | limit = &intel_limits_ironlake_dual_lvds_100m; |
456 | else | |
457 | limit = &intel_limits_ironlake_dual_lvds; | |
458 | } else { | |
1b894b59 | 459 | if (refclk == 100000) |
b91ad0ec ZW |
460 | limit = &intel_limits_ironlake_single_lvds_100m; |
461 | else | |
462 | limit = &intel_limits_ironlake_single_lvds; | |
463 | } | |
464 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || | |
4547668a ZY |
465 | HAS_eDP) |
466 | limit = &intel_limits_ironlake_display_port; | |
2c07245f | 467 | else |
b91ad0ec | 468 | limit = &intel_limits_ironlake_dac; |
2c07245f ZW |
469 | |
470 | return limit; | |
471 | } | |
472 | ||
044c7c41 ML |
473 | static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc) |
474 | { | |
475 | struct drm_device *dev = crtc->dev; | |
476 | struct drm_i915_private *dev_priv = dev->dev_private; | |
477 | const intel_limit_t *limit; | |
478 | ||
479 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
b0354385 | 480 | if (is_dual_link_lvds(dev_priv, LVDS)) |
044c7c41 | 481 | /* LVDS with dual channel */ |
e4b36699 | 482 | limit = &intel_limits_g4x_dual_channel_lvds; |
044c7c41 ML |
483 | else |
484 | /* LVDS with dual channel */ | |
e4b36699 | 485 | limit = &intel_limits_g4x_single_channel_lvds; |
044c7c41 ML |
486 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) || |
487 | intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { | |
e4b36699 | 488 | limit = &intel_limits_g4x_hdmi; |
044c7c41 | 489 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) { |
e4b36699 | 490 | limit = &intel_limits_g4x_sdvo; |
0206e353 | 491 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
e4b36699 | 492 | limit = &intel_limits_g4x_display_port; |
044c7c41 | 493 | } else /* The option is for other outputs */ |
e4b36699 | 494 | limit = &intel_limits_i9xx_sdvo; |
044c7c41 ML |
495 | |
496 | return limit; | |
497 | } | |
498 | ||
1b894b59 | 499 | static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk) |
79e53945 JB |
500 | { |
501 | struct drm_device *dev = crtc->dev; | |
502 | const intel_limit_t *limit; | |
503 | ||
bad720ff | 504 | if (HAS_PCH_SPLIT(dev)) |
1b894b59 | 505 | limit = intel_ironlake_limit(crtc, refclk); |
2c07245f | 506 | else if (IS_G4X(dev)) { |
044c7c41 | 507 | limit = intel_g4x_limit(crtc); |
f2b115e6 | 508 | } else if (IS_PINEVIEW(dev)) { |
2177832f | 509 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
f2b115e6 | 510 | limit = &intel_limits_pineview_lvds; |
2177832f | 511 | else |
f2b115e6 | 512 | limit = &intel_limits_pineview_sdvo; |
a6c45cf0 CW |
513 | } else if (!IS_GEN2(dev)) { |
514 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
515 | limit = &intel_limits_i9xx_lvds; | |
516 | else | |
517 | limit = &intel_limits_i9xx_sdvo; | |
79e53945 JB |
518 | } else { |
519 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
e4b36699 | 520 | limit = &intel_limits_i8xx_lvds; |
79e53945 | 521 | else |
e4b36699 | 522 | limit = &intel_limits_i8xx_dvo; |
79e53945 JB |
523 | } |
524 | return limit; | |
525 | } | |
526 | ||
f2b115e6 AJ |
527 | /* m1 is reserved as 0 in Pineview, n is a ring counter */ |
528 | static void pineview_clock(int refclk, intel_clock_t *clock) | |
79e53945 | 529 | { |
2177832f SL |
530 | clock->m = clock->m2 + 2; |
531 | clock->p = clock->p1 * clock->p2; | |
532 | clock->vco = refclk * clock->m / clock->n; | |
533 | clock->dot = clock->vco / clock->p; | |
534 | } | |
535 | ||
536 | static void intel_clock(struct drm_device *dev, int refclk, intel_clock_t *clock) | |
537 | { | |
f2b115e6 AJ |
538 | if (IS_PINEVIEW(dev)) { |
539 | pineview_clock(refclk, clock); | |
2177832f SL |
540 | return; |
541 | } | |
79e53945 JB |
542 | clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2); |
543 | clock->p = clock->p1 * clock->p2; | |
544 | clock->vco = refclk * clock->m / (clock->n + 2); | |
545 | clock->dot = clock->vco / clock->p; | |
546 | } | |
547 | ||
79e53945 JB |
548 | /** |
549 | * Returns whether any output on the specified pipe is of the specified type | |
550 | */ | |
4ef69c7a | 551 | bool intel_pipe_has_type(struct drm_crtc *crtc, int type) |
79e53945 | 552 | { |
4ef69c7a CW |
553 | struct drm_device *dev = crtc->dev; |
554 | struct drm_mode_config *mode_config = &dev->mode_config; | |
555 | struct intel_encoder *encoder; | |
556 | ||
557 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) | |
558 | if (encoder->base.crtc == crtc && encoder->type == type) | |
559 | return true; | |
560 | ||
561 | return false; | |
79e53945 JB |
562 | } |
563 | ||
7c04d1d9 | 564 | #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) |
79e53945 JB |
565 | /** |
566 | * Returns whether the given set of divisors are valid for a given refclk with | |
567 | * the given connectors. | |
568 | */ | |
569 | ||
1b894b59 CW |
570 | static bool intel_PLL_is_valid(struct drm_device *dev, |
571 | const intel_limit_t *limit, | |
572 | const intel_clock_t *clock) | |
79e53945 | 573 | { |
79e53945 | 574 | if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1) |
0206e353 | 575 | INTELPllInvalid("p1 out of range\n"); |
79e53945 | 576 | if (clock->p < limit->p.min || limit->p.max < clock->p) |
0206e353 | 577 | INTELPllInvalid("p out of range\n"); |
79e53945 | 578 | if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2) |
0206e353 | 579 | INTELPllInvalid("m2 out of range\n"); |
79e53945 | 580 | if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1) |
0206e353 | 581 | INTELPllInvalid("m1 out of range\n"); |
f2b115e6 | 582 | if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev)) |
0206e353 | 583 | INTELPllInvalid("m1 <= m2\n"); |
79e53945 | 584 | if (clock->m < limit->m.min || limit->m.max < clock->m) |
0206e353 | 585 | INTELPllInvalid("m out of range\n"); |
79e53945 | 586 | if (clock->n < limit->n.min || limit->n.max < clock->n) |
0206e353 | 587 | INTELPllInvalid("n out of range\n"); |
79e53945 | 588 | if (clock->vco < limit->vco.min || limit->vco.max < clock->vco) |
0206e353 | 589 | INTELPllInvalid("vco out of range\n"); |
79e53945 JB |
590 | /* XXX: We may need to be checking "Dot clock" depending on the multiplier, |
591 | * connector, etc., rather than just a single range. | |
592 | */ | |
593 | if (clock->dot < limit->dot.min || limit->dot.max < clock->dot) | |
0206e353 | 594 | INTELPllInvalid("dot out of range\n"); |
79e53945 JB |
595 | |
596 | return true; | |
597 | } | |
598 | ||
d4906093 ML |
599 | static bool |
600 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
601 | int target, int refclk, intel_clock_t *match_clock, |
602 | intel_clock_t *best_clock) | |
d4906093 | 603 | |
79e53945 JB |
604 | { |
605 | struct drm_device *dev = crtc->dev; | |
606 | struct drm_i915_private *dev_priv = dev->dev_private; | |
607 | intel_clock_t clock; | |
79e53945 JB |
608 | int err = target; |
609 | ||
bc5e5718 | 610 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && |
832cc28d | 611 | (I915_READ(LVDS)) != 0) { |
79e53945 JB |
612 | /* |
613 | * For LVDS, if the panel is on, just rely on its current | |
614 | * settings for dual-channel. We haven't figured out how to | |
615 | * reliably set up different single/dual channel state, if we | |
616 | * even can. | |
617 | */ | |
b0354385 | 618 | if (is_dual_link_lvds(dev_priv, LVDS)) |
79e53945 JB |
619 | clock.p2 = limit->p2.p2_fast; |
620 | else | |
621 | clock.p2 = limit->p2.p2_slow; | |
622 | } else { | |
623 | if (target < limit->p2.dot_limit) | |
624 | clock.p2 = limit->p2.p2_slow; | |
625 | else | |
626 | clock.p2 = limit->p2.p2_fast; | |
627 | } | |
628 | ||
0206e353 | 629 | memset(best_clock, 0, sizeof(*best_clock)); |
79e53945 | 630 | |
42158660 ZY |
631 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
632 | clock.m1++) { | |
633 | for (clock.m2 = limit->m2.min; | |
634 | clock.m2 <= limit->m2.max; clock.m2++) { | |
f2b115e6 AJ |
635 | /* m1 is always 0 in Pineview */ |
636 | if (clock.m2 >= clock.m1 && !IS_PINEVIEW(dev)) | |
42158660 ZY |
637 | break; |
638 | for (clock.n = limit->n.min; | |
639 | clock.n <= limit->n.max; clock.n++) { | |
640 | for (clock.p1 = limit->p1.min; | |
641 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
642 | int this_err; |
643 | ||
2177832f | 644 | intel_clock(dev, refclk, &clock); |
1b894b59 CW |
645 | if (!intel_PLL_is_valid(dev, limit, |
646 | &clock)) | |
79e53945 | 647 | continue; |
cec2f356 SP |
648 | if (match_clock && |
649 | clock.p != match_clock->p) | |
650 | continue; | |
79e53945 JB |
651 | |
652 | this_err = abs(clock.dot - target); | |
653 | if (this_err < err) { | |
654 | *best_clock = clock; | |
655 | err = this_err; | |
656 | } | |
657 | } | |
658 | } | |
659 | } | |
660 | } | |
661 | ||
662 | return (err != target); | |
663 | } | |
664 | ||
d4906093 ML |
665 | static bool |
666 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
667 | int target, int refclk, intel_clock_t *match_clock, |
668 | intel_clock_t *best_clock) | |
d4906093 ML |
669 | { |
670 | struct drm_device *dev = crtc->dev; | |
671 | struct drm_i915_private *dev_priv = dev->dev_private; | |
672 | intel_clock_t clock; | |
673 | int max_n; | |
674 | bool found; | |
6ba770dc AJ |
675 | /* approximately equals target * 0.00585 */ |
676 | int err_most = (target >> 8) + (target >> 9); | |
d4906093 ML |
677 | found = false; |
678 | ||
679 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
4547668a ZY |
680 | int lvds_reg; |
681 | ||
c619eed4 | 682 | if (HAS_PCH_SPLIT(dev)) |
4547668a ZY |
683 | lvds_reg = PCH_LVDS; |
684 | else | |
685 | lvds_reg = LVDS; | |
686 | if ((I915_READ(lvds_reg) & LVDS_CLKB_POWER_MASK) == | |
d4906093 ML |
687 | LVDS_CLKB_POWER_UP) |
688 | clock.p2 = limit->p2.p2_fast; | |
689 | else | |
690 | clock.p2 = limit->p2.p2_slow; | |
691 | } else { | |
692 | if (target < limit->p2.dot_limit) | |
693 | clock.p2 = limit->p2.p2_slow; | |
694 | else | |
695 | clock.p2 = limit->p2.p2_fast; | |
696 | } | |
697 | ||
698 | memset(best_clock, 0, sizeof(*best_clock)); | |
699 | max_n = limit->n.max; | |
f77f13e2 | 700 | /* based on hardware requirement, prefer smaller n to precision */ |
d4906093 | 701 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
f77f13e2 | 702 | /* based on hardware requirement, prefere larger m1,m2 */ |
d4906093 ML |
703 | for (clock.m1 = limit->m1.max; |
704 | clock.m1 >= limit->m1.min; clock.m1--) { | |
705 | for (clock.m2 = limit->m2.max; | |
706 | clock.m2 >= limit->m2.min; clock.m2--) { | |
707 | for (clock.p1 = limit->p1.max; | |
708 | clock.p1 >= limit->p1.min; clock.p1--) { | |
709 | int this_err; | |
710 | ||
2177832f | 711 | intel_clock(dev, refclk, &clock); |
1b894b59 CW |
712 | if (!intel_PLL_is_valid(dev, limit, |
713 | &clock)) | |
d4906093 | 714 | continue; |
cec2f356 SP |
715 | if (match_clock && |
716 | clock.p != match_clock->p) | |
717 | continue; | |
1b894b59 CW |
718 | |
719 | this_err = abs(clock.dot - target); | |
d4906093 ML |
720 | if (this_err < err_most) { |
721 | *best_clock = clock; | |
722 | err_most = this_err; | |
723 | max_n = clock.n; | |
724 | found = true; | |
725 | } | |
726 | } | |
727 | } | |
728 | } | |
729 | } | |
2c07245f ZW |
730 | return found; |
731 | } | |
732 | ||
5eb08b69 | 733 | static bool |
f2b115e6 | 734 | intel_find_pll_ironlake_dp(const intel_limit_t *limit, struct drm_crtc *crtc, |
cec2f356 SP |
735 | int target, int refclk, intel_clock_t *match_clock, |
736 | intel_clock_t *best_clock) | |
5eb08b69 ZW |
737 | { |
738 | struct drm_device *dev = crtc->dev; | |
739 | intel_clock_t clock; | |
4547668a | 740 | |
5eb08b69 ZW |
741 | if (target < 200000) { |
742 | clock.n = 1; | |
743 | clock.p1 = 2; | |
744 | clock.p2 = 10; | |
745 | clock.m1 = 12; | |
746 | clock.m2 = 9; | |
747 | } else { | |
748 | clock.n = 2; | |
749 | clock.p1 = 1; | |
750 | clock.p2 = 10; | |
751 | clock.m1 = 14; | |
752 | clock.m2 = 8; | |
753 | } | |
754 | intel_clock(dev, refclk, &clock); | |
755 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); | |
756 | return true; | |
757 | } | |
758 | ||
a4fc5ed6 KP |
759 | /* DisplayPort has only two frequencies, 162MHz and 270MHz */ |
760 | static bool | |
761 | intel_find_pll_g4x_dp(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
762 | int target, int refclk, intel_clock_t *match_clock, |
763 | intel_clock_t *best_clock) | |
a4fc5ed6 | 764 | { |
5eddb70b CW |
765 | intel_clock_t clock; |
766 | if (target < 200000) { | |
767 | clock.p1 = 2; | |
768 | clock.p2 = 10; | |
769 | clock.n = 2; | |
770 | clock.m1 = 23; | |
771 | clock.m2 = 8; | |
772 | } else { | |
773 | clock.p1 = 1; | |
774 | clock.p2 = 10; | |
775 | clock.n = 1; | |
776 | clock.m1 = 14; | |
777 | clock.m2 = 2; | |
778 | } | |
779 | clock.m = 5 * (clock.m1 + 2) + (clock.m2 + 2); | |
780 | clock.p = (clock.p1 * clock.p2); | |
781 | clock.dot = 96000 * clock.m / (clock.n + 2) / clock.p; | |
782 | clock.vco = 0; | |
783 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); | |
784 | return true; | |
a4fc5ed6 KP |
785 | } |
786 | ||
a928d536 PZ |
787 | static void ironlake_wait_for_vblank(struct drm_device *dev, int pipe) |
788 | { | |
789 | struct drm_i915_private *dev_priv = dev->dev_private; | |
790 | u32 frame, frame_reg = PIPEFRAME(pipe); | |
791 | ||
792 | frame = I915_READ(frame_reg); | |
793 | ||
794 | if (wait_for(I915_READ_NOTRACE(frame_reg) != frame, 50)) | |
795 | DRM_DEBUG_KMS("vblank wait timed out\n"); | |
796 | } | |
797 | ||
9d0498a2 JB |
798 | /** |
799 | * intel_wait_for_vblank - wait for vblank on a given pipe | |
800 | * @dev: drm device | |
801 | * @pipe: pipe to wait for | |
802 | * | |
803 | * Wait for vblank to occur on a given pipe. Needed for various bits of | |
804 | * mode setting code. | |
805 | */ | |
806 | void intel_wait_for_vblank(struct drm_device *dev, int pipe) | |
79e53945 | 807 | { |
9d0498a2 | 808 | struct drm_i915_private *dev_priv = dev->dev_private; |
9db4a9c7 | 809 | int pipestat_reg = PIPESTAT(pipe); |
9d0498a2 | 810 | |
a928d536 PZ |
811 | if (INTEL_INFO(dev)->gen >= 5) { |
812 | ironlake_wait_for_vblank(dev, pipe); | |
813 | return; | |
814 | } | |
815 | ||
300387c0 CW |
816 | /* Clear existing vblank status. Note this will clear any other |
817 | * sticky status fields as well. | |
818 | * | |
819 | * This races with i915_driver_irq_handler() with the result | |
820 | * that either function could miss a vblank event. Here it is not | |
821 | * fatal, as we will either wait upon the next vblank interrupt or | |
822 | * timeout. Generally speaking intel_wait_for_vblank() is only | |
823 | * called during modeset at which time the GPU should be idle and | |
824 | * should *not* be performing page flips and thus not waiting on | |
825 | * vblanks... | |
826 | * Currently, the result of us stealing a vblank from the irq | |
827 | * handler is that a single frame will be skipped during swapbuffers. | |
828 | */ | |
829 | I915_WRITE(pipestat_reg, | |
830 | I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS); | |
831 | ||
9d0498a2 | 832 | /* Wait for vblank interrupt bit to set */ |
481b6af3 CW |
833 | if (wait_for(I915_READ(pipestat_reg) & |
834 | PIPE_VBLANK_INTERRUPT_STATUS, | |
835 | 50)) | |
9d0498a2 JB |
836 | DRM_DEBUG_KMS("vblank wait timed out\n"); |
837 | } | |
838 | ||
ab7ad7f6 KP |
839 | /* |
840 | * intel_wait_for_pipe_off - wait for pipe to turn off | |
9d0498a2 JB |
841 | * @dev: drm device |
842 | * @pipe: pipe to wait for | |
843 | * | |
844 | * After disabling a pipe, we can't wait for vblank in the usual way, | |
845 | * spinning on the vblank interrupt status bit, since we won't actually | |
846 | * see an interrupt when the pipe is disabled. | |
847 | * | |
ab7ad7f6 KP |
848 | * On Gen4 and above: |
849 | * wait for the pipe register state bit to turn off | |
850 | * | |
851 | * Otherwise: | |
852 | * wait for the display line value to settle (it usually | |
853 | * ends up stopping at the start of the next frame). | |
58e10eb9 | 854 | * |
9d0498a2 | 855 | */ |
58e10eb9 | 856 | void intel_wait_for_pipe_off(struct drm_device *dev, int pipe) |
9d0498a2 JB |
857 | { |
858 | struct drm_i915_private *dev_priv = dev->dev_private; | |
ab7ad7f6 KP |
859 | |
860 | if (INTEL_INFO(dev)->gen >= 4) { | |
58e10eb9 | 861 | int reg = PIPECONF(pipe); |
ab7ad7f6 KP |
862 | |
863 | /* Wait for the Pipe State to go off */ | |
58e10eb9 CW |
864 | if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0, |
865 | 100)) | |
ab7ad7f6 KP |
866 | DRM_DEBUG_KMS("pipe_off wait timed out\n"); |
867 | } else { | |
837ba00f | 868 | u32 last_line, line_mask; |
58e10eb9 | 869 | int reg = PIPEDSL(pipe); |
ab7ad7f6 KP |
870 | unsigned long timeout = jiffies + msecs_to_jiffies(100); |
871 | ||
837ba00f PZ |
872 | if (IS_GEN2(dev)) |
873 | line_mask = DSL_LINEMASK_GEN2; | |
874 | else | |
875 | line_mask = DSL_LINEMASK_GEN3; | |
876 | ||
ab7ad7f6 KP |
877 | /* Wait for the display line to settle */ |
878 | do { | |
837ba00f | 879 | last_line = I915_READ(reg) & line_mask; |
ab7ad7f6 | 880 | mdelay(5); |
837ba00f | 881 | } while (((I915_READ(reg) & line_mask) != last_line) && |
ab7ad7f6 KP |
882 | time_after(timeout, jiffies)); |
883 | if (time_after(jiffies, timeout)) | |
884 | DRM_DEBUG_KMS("pipe_off wait timed out\n"); | |
885 | } | |
79e53945 JB |
886 | } |
887 | ||
b24e7179 JB |
888 | static const char *state_string(bool enabled) |
889 | { | |
890 | return enabled ? "on" : "off"; | |
891 | } | |
892 | ||
893 | /* Only for pre-ILK configs */ | |
894 | static void assert_pll(struct drm_i915_private *dev_priv, | |
895 | enum pipe pipe, bool state) | |
896 | { | |
897 | int reg; | |
898 | u32 val; | |
899 | bool cur_state; | |
900 | ||
901 | reg = DPLL(pipe); | |
902 | val = I915_READ(reg); | |
903 | cur_state = !!(val & DPLL_VCO_ENABLE); | |
904 | WARN(cur_state != state, | |
905 | "PLL state assertion failure (expected %s, current %s)\n", | |
906 | state_string(state), state_string(cur_state)); | |
907 | } | |
908 | #define assert_pll_enabled(d, p) assert_pll(d, p, true) | |
909 | #define assert_pll_disabled(d, p) assert_pll(d, p, false) | |
910 | ||
040484af JB |
911 | /* For ILK+ */ |
912 | static void assert_pch_pll(struct drm_i915_private *dev_priv, | |
ee7b9f93 | 913 | struct intel_crtc *intel_crtc, bool state) |
040484af JB |
914 | { |
915 | int reg; | |
916 | u32 val; | |
917 | bool cur_state; | |
918 | ||
9d82aa17 ED |
919 | if (HAS_PCH_LPT(dev_priv->dev)) { |
920 | DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n"); | |
921 | return; | |
922 | } | |
923 | ||
ee7b9f93 JB |
924 | if (!intel_crtc->pch_pll) { |
925 | WARN(1, "asserting PCH PLL enabled with no PLL\n"); | |
926 | return; | |
927 | } | |
928 | ||
d3ccbe86 JB |
929 | if (HAS_PCH_CPT(dev_priv->dev)) { |
930 | u32 pch_dpll; | |
931 | ||
932 | pch_dpll = I915_READ(PCH_DPLL_SEL); | |
933 | ||
934 | /* Make sure the selected PLL is enabled to the transcoder */ | |
ee7b9f93 JB |
935 | WARN(!((pch_dpll >> (4 * intel_crtc->pipe)) & 8), |
936 | "transcoder %d PLL not enabled\n", intel_crtc->pipe); | |
d3ccbe86 JB |
937 | } |
938 | ||
ee7b9f93 | 939 | reg = intel_crtc->pch_pll->pll_reg; |
040484af JB |
940 | val = I915_READ(reg); |
941 | cur_state = !!(val & DPLL_VCO_ENABLE); | |
942 | WARN(cur_state != state, | |
943 | "PCH PLL state assertion failure (expected %s, current %s)\n", | |
944 | state_string(state), state_string(cur_state)); | |
945 | } | |
946 | #define assert_pch_pll_enabled(d, p) assert_pch_pll(d, p, true) | |
947 | #define assert_pch_pll_disabled(d, p) assert_pch_pll(d, p, false) | |
948 | ||
949 | static void assert_fdi_tx(struct drm_i915_private *dev_priv, | |
950 | enum pipe pipe, bool state) | |
951 | { | |
952 | int reg; | |
953 | u32 val; | |
954 | bool cur_state; | |
955 | ||
bf507ef7 ED |
956 | if (IS_HASWELL(dev_priv->dev)) { |
957 | /* On Haswell, DDI is used instead of FDI_TX_CTL */ | |
958 | reg = DDI_FUNC_CTL(pipe); | |
959 | val = I915_READ(reg); | |
960 | cur_state = !!(val & PIPE_DDI_FUNC_ENABLE); | |
961 | } else { | |
962 | reg = FDI_TX_CTL(pipe); | |
963 | val = I915_READ(reg); | |
964 | cur_state = !!(val & FDI_TX_ENABLE); | |
965 | } | |
040484af JB |
966 | WARN(cur_state != state, |
967 | "FDI TX state assertion failure (expected %s, current %s)\n", | |
968 | state_string(state), state_string(cur_state)); | |
969 | } | |
970 | #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true) | |
971 | #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false) | |
972 | ||
973 | static void assert_fdi_rx(struct drm_i915_private *dev_priv, | |
974 | enum pipe pipe, bool state) | |
975 | { | |
976 | int reg; | |
977 | u32 val; | |
978 | bool cur_state; | |
979 | ||
59c859d6 ED |
980 | if (IS_HASWELL(dev_priv->dev) && pipe > 0) { |
981 | DRM_ERROR("Attempting to enable FDI_RX on Haswell pipe > 0\n"); | |
982 | return; | |
983 | } else { | |
984 | reg = FDI_RX_CTL(pipe); | |
985 | val = I915_READ(reg); | |
986 | cur_state = !!(val & FDI_RX_ENABLE); | |
987 | } | |
040484af JB |
988 | WARN(cur_state != state, |
989 | "FDI RX state assertion failure (expected %s, current %s)\n", | |
990 | state_string(state), state_string(cur_state)); | |
991 | } | |
992 | #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true) | |
993 | #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false) | |
994 | ||
995 | static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv, | |
996 | enum pipe pipe) | |
997 | { | |
998 | int reg; | |
999 | u32 val; | |
1000 | ||
1001 | /* ILK FDI PLL is always enabled */ | |
1002 | if (dev_priv->info->gen == 5) | |
1003 | return; | |
1004 | ||
bf507ef7 ED |
1005 | /* On Haswell, DDI ports are responsible for the FDI PLL setup */ |
1006 | if (IS_HASWELL(dev_priv->dev)) | |
1007 | return; | |
1008 | ||
040484af JB |
1009 | reg = FDI_TX_CTL(pipe); |
1010 | val = I915_READ(reg); | |
1011 | WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n"); | |
1012 | } | |
1013 | ||
1014 | static void assert_fdi_rx_pll_enabled(struct drm_i915_private *dev_priv, | |
1015 | enum pipe pipe) | |
1016 | { | |
1017 | int reg; | |
1018 | u32 val; | |
1019 | ||
59c859d6 ED |
1020 | if (IS_HASWELL(dev_priv->dev) && pipe > 0) { |
1021 | DRM_ERROR("Attempting to enable FDI on Haswell with pipe > 0\n"); | |
1022 | return; | |
1023 | } | |
040484af JB |
1024 | reg = FDI_RX_CTL(pipe); |
1025 | val = I915_READ(reg); | |
1026 | WARN(!(val & FDI_RX_PLL_ENABLE), "FDI RX PLL assertion failure, should be active but is disabled\n"); | |
1027 | } | |
1028 | ||
ea0760cf JB |
1029 | static void assert_panel_unlocked(struct drm_i915_private *dev_priv, |
1030 | enum pipe pipe) | |
1031 | { | |
1032 | int pp_reg, lvds_reg; | |
1033 | u32 val; | |
1034 | enum pipe panel_pipe = PIPE_A; | |
0de3b485 | 1035 | bool locked = true; |
ea0760cf JB |
1036 | |
1037 | if (HAS_PCH_SPLIT(dev_priv->dev)) { | |
1038 | pp_reg = PCH_PP_CONTROL; | |
1039 | lvds_reg = PCH_LVDS; | |
1040 | } else { | |
1041 | pp_reg = PP_CONTROL; | |
1042 | lvds_reg = LVDS; | |
1043 | } | |
1044 | ||
1045 | val = I915_READ(pp_reg); | |
1046 | if (!(val & PANEL_POWER_ON) || | |
1047 | ((val & PANEL_UNLOCK_REGS) == PANEL_UNLOCK_REGS)) | |
1048 | locked = false; | |
1049 | ||
1050 | if (I915_READ(lvds_reg) & LVDS_PIPEB_SELECT) | |
1051 | panel_pipe = PIPE_B; | |
1052 | ||
1053 | WARN(panel_pipe == pipe && locked, | |
1054 | "panel assertion failure, pipe %c regs locked\n", | |
9db4a9c7 | 1055 | pipe_name(pipe)); |
ea0760cf JB |
1056 | } |
1057 | ||
b840d907 JB |
1058 | void assert_pipe(struct drm_i915_private *dev_priv, |
1059 | enum pipe pipe, bool state) | |
b24e7179 JB |
1060 | { |
1061 | int reg; | |
1062 | u32 val; | |
63d7bbe9 | 1063 | bool cur_state; |
b24e7179 | 1064 | |
8e636784 DV |
1065 | /* if we need the pipe A quirk it must be always on */ |
1066 | if (pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) | |
1067 | state = true; | |
1068 | ||
b24e7179 JB |
1069 | reg = PIPECONF(pipe); |
1070 | val = I915_READ(reg); | |
63d7bbe9 JB |
1071 | cur_state = !!(val & PIPECONF_ENABLE); |
1072 | WARN(cur_state != state, | |
1073 | "pipe %c assertion failure (expected %s, current %s)\n", | |
9db4a9c7 | 1074 | pipe_name(pipe), state_string(state), state_string(cur_state)); |
b24e7179 JB |
1075 | } |
1076 | ||
931872fc CW |
1077 | static void assert_plane(struct drm_i915_private *dev_priv, |
1078 | enum plane plane, bool state) | |
b24e7179 JB |
1079 | { |
1080 | int reg; | |
1081 | u32 val; | |
931872fc | 1082 | bool cur_state; |
b24e7179 JB |
1083 | |
1084 | reg = DSPCNTR(plane); | |
1085 | val = I915_READ(reg); | |
931872fc CW |
1086 | cur_state = !!(val & DISPLAY_PLANE_ENABLE); |
1087 | WARN(cur_state != state, | |
1088 | "plane %c assertion failure (expected %s, current %s)\n", | |
1089 | plane_name(plane), state_string(state), state_string(cur_state)); | |
b24e7179 JB |
1090 | } |
1091 | ||
931872fc CW |
1092 | #define assert_plane_enabled(d, p) assert_plane(d, p, true) |
1093 | #define assert_plane_disabled(d, p) assert_plane(d, p, false) | |
1094 | ||
b24e7179 JB |
1095 | static void assert_planes_disabled(struct drm_i915_private *dev_priv, |
1096 | enum pipe pipe) | |
1097 | { | |
1098 | int reg, i; | |
1099 | u32 val; | |
1100 | int cur_pipe; | |
1101 | ||
19ec1358 | 1102 | /* Planes are fixed to pipes on ILK+ */ |
28c05794 AJ |
1103 | if (HAS_PCH_SPLIT(dev_priv->dev)) { |
1104 | reg = DSPCNTR(pipe); | |
1105 | val = I915_READ(reg); | |
1106 | WARN((val & DISPLAY_PLANE_ENABLE), | |
1107 | "plane %c assertion failure, should be disabled but not\n", | |
1108 | plane_name(pipe)); | |
19ec1358 | 1109 | return; |
28c05794 | 1110 | } |
19ec1358 | 1111 | |
b24e7179 JB |
1112 | /* Need to check both planes against the pipe */ |
1113 | for (i = 0; i < 2; i++) { | |
1114 | reg = DSPCNTR(i); | |
1115 | val = I915_READ(reg); | |
1116 | cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >> | |
1117 | DISPPLANE_SEL_PIPE_SHIFT; | |
1118 | WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe, | |
9db4a9c7 JB |
1119 | "plane %c assertion failure, should be off on pipe %c but is still active\n", |
1120 | plane_name(i), pipe_name(pipe)); | |
b24e7179 JB |
1121 | } |
1122 | } | |
1123 | ||
92f2584a JB |
1124 | static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv) |
1125 | { | |
1126 | u32 val; | |
1127 | bool enabled; | |
1128 | ||
9d82aa17 ED |
1129 | if (HAS_PCH_LPT(dev_priv->dev)) { |
1130 | DRM_DEBUG_DRIVER("LPT does not has PCH refclk, skipping check\n"); | |
1131 | return; | |
1132 | } | |
1133 | ||
92f2584a JB |
1134 | val = I915_READ(PCH_DREF_CONTROL); |
1135 | enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK | | |
1136 | DREF_SUPERSPREAD_SOURCE_MASK)); | |
1137 | WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n"); | |
1138 | } | |
1139 | ||
1140 | static void assert_transcoder_disabled(struct drm_i915_private *dev_priv, | |
1141 | enum pipe pipe) | |
1142 | { | |
1143 | int reg; | |
1144 | u32 val; | |
1145 | bool enabled; | |
1146 | ||
1147 | reg = TRANSCONF(pipe); | |
1148 | val = I915_READ(reg); | |
1149 | enabled = !!(val & TRANS_ENABLE); | |
9db4a9c7 JB |
1150 | WARN(enabled, |
1151 | "transcoder assertion failed, should be off on pipe %c but is still active\n", | |
1152 | pipe_name(pipe)); | |
92f2584a JB |
1153 | } |
1154 | ||
4e634389 KP |
1155 | static bool dp_pipe_enabled(struct drm_i915_private *dev_priv, |
1156 | enum pipe pipe, u32 port_sel, u32 val) | |
f0575e92 KP |
1157 | { |
1158 | if ((val & DP_PORT_EN) == 0) | |
1159 | return false; | |
1160 | ||
1161 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1162 | u32 trans_dp_ctl_reg = TRANS_DP_CTL(pipe); | |
1163 | u32 trans_dp_ctl = I915_READ(trans_dp_ctl_reg); | |
1164 | if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel) | |
1165 | return false; | |
1166 | } else { | |
1167 | if ((val & DP_PIPE_MASK) != (pipe << 30)) | |
1168 | return false; | |
1169 | } | |
1170 | return true; | |
1171 | } | |
1172 | ||
1519b995 KP |
1173 | static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv, |
1174 | enum pipe pipe, u32 val) | |
1175 | { | |
1176 | if ((val & PORT_ENABLE) == 0) | |
1177 | return false; | |
1178 | ||
1179 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1180 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1181 | return false; | |
1182 | } else { | |
1183 | if ((val & TRANSCODER_MASK) != TRANSCODER(pipe)) | |
1184 | return false; | |
1185 | } | |
1186 | return true; | |
1187 | } | |
1188 | ||
1189 | static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv, | |
1190 | enum pipe pipe, u32 val) | |
1191 | { | |
1192 | if ((val & LVDS_PORT_EN) == 0) | |
1193 | return false; | |
1194 | ||
1195 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1196 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1197 | return false; | |
1198 | } else { | |
1199 | if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe)) | |
1200 | return false; | |
1201 | } | |
1202 | return true; | |
1203 | } | |
1204 | ||
1205 | static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv, | |
1206 | enum pipe pipe, u32 val) | |
1207 | { | |
1208 | if ((val & ADPA_DAC_ENABLE) == 0) | |
1209 | return false; | |
1210 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1211 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1212 | return false; | |
1213 | } else { | |
1214 | if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe)) | |
1215 | return false; | |
1216 | } | |
1217 | return true; | |
1218 | } | |
1219 | ||
291906f1 | 1220 | static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv, |
f0575e92 | 1221 | enum pipe pipe, int reg, u32 port_sel) |
291906f1 | 1222 | { |
47a05eca | 1223 | u32 val = I915_READ(reg); |
4e634389 | 1224 | WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val), |
291906f1 | 1225 | "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1226 | reg, pipe_name(pipe)); |
291906f1 JB |
1227 | } |
1228 | ||
1229 | static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv, | |
1230 | enum pipe pipe, int reg) | |
1231 | { | |
47a05eca | 1232 | u32 val = I915_READ(reg); |
1519b995 | 1233 | WARN(hdmi_pipe_enabled(dev_priv, val, pipe), |
23c99e77 | 1234 | "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1235 | reg, pipe_name(pipe)); |
291906f1 JB |
1236 | } |
1237 | ||
1238 | static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, | |
1239 | enum pipe pipe) | |
1240 | { | |
1241 | int reg; | |
1242 | u32 val; | |
291906f1 | 1243 | |
f0575e92 KP |
1244 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); |
1245 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); | |
1246 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); | |
291906f1 JB |
1247 | |
1248 | reg = PCH_ADPA; | |
1249 | val = I915_READ(reg); | |
1519b995 | 1250 | WARN(adpa_pipe_enabled(dev_priv, val, pipe), |
291906f1 | 1251 | "PCH VGA enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1252 | pipe_name(pipe)); |
291906f1 JB |
1253 | |
1254 | reg = PCH_LVDS; | |
1255 | val = I915_READ(reg); | |
1519b995 | 1256 | WARN(lvds_pipe_enabled(dev_priv, val, pipe), |
291906f1 | 1257 | "PCH LVDS enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1258 | pipe_name(pipe)); |
291906f1 JB |
1259 | |
1260 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMIB); | |
1261 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMIC); | |
1262 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMID); | |
1263 | } | |
1264 | ||
63d7bbe9 JB |
1265 | /** |
1266 | * intel_enable_pll - enable a PLL | |
1267 | * @dev_priv: i915 private structure | |
1268 | * @pipe: pipe PLL to enable | |
1269 | * | |
1270 | * Enable @pipe's PLL so we can start pumping pixels from a plane. Check to | |
1271 | * make sure the PLL reg is writable first though, since the panel write | |
1272 | * protect mechanism may be enabled. | |
1273 | * | |
1274 | * Note! This is for pre-ILK only. | |
1275 | */ | |
1276 | static void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) | |
1277 | { | |
1278 | int reg; | |
1279 | u32 val; | |
1280 | ||
1281 | /* No really, not for ILK+ */ | |
1282 | BUG_ON(dev_priv->info->gen >= 5); | |
1283 | ||
1284 | /* PLL is protected by panel, make sure we can write it */ | |
1285 | if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev)) | |
1286 | assert_panel_unlocked(dev_priv, pipe); | |
1287 | ||
1288 | reg = DPLL(pipe); | |
1289 | val = I915_READ(reg); | |
1290 | val |= DPLL_VCO_ENABLE; | |
1291 | ||
1292 | /* We do this three times for luck */ | |
1293 | I915_WRITE(reg, val); | |
1294 | POSTING_READ(reg); | |
1295 | udelay(150); /* wait for warmup */ | |
1296 | I915_WRITE(reg, val); | |
1297 | POSTING_READ(reg); | |
1298 | udelay(150); /* wait for warmup */ | |
1299 | I915_WRITE(reg, val); | |
1300 | POSTING_READ(reg); | |
1301 | udelay(150); /* wait for warmup */ | |
1302 | } | |
1303 | ||
1304 | /** | |
1305 | * intel_disable_pll - disable a PLL | |
1306 | * @dev_priv: i915 private structure | |
1307 | * @pipe: pipe PLL to disable | |
1308 | * | |
1309 | * Disable the PLL for @pipe, making sure the pipe is off first. | |
1310 | * | |
1311 | * Note! This is for pre-ILK only. | |
1312 | */ | |
1313 | static void intel_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) | |
1314 | { | |
1315 | int reg; | |
1316 | u32 val; | |
1317 | ||
1318 | /* Don't disable pipe A or pipe A PLLs if needed */ | |
1319 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) | |
1320 | return; | |
1321 | ||
1322 | /* Make sure the pipe isn't still relying on us */ | |
1323 | assert_pipe_disabled(dev_priv, pipe); | |
1324 | ||
1325 | reg = DPLL(pipe); | |
1326 | val = I915_READ(reg); | |
1327 | val &= ~DPLL_VCO_ENABLE; | |
1328 | I915_WRITE(reg, val); | |
1329 | POSTING_READ(reg); | |
1330 | } | |
1331 | ||
a416edef ED |
1332 | /* SBI access */ |
1333 | static void | |
1334 | intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value) | |
1335 | { | |
1336 | unsigned long flags; | |
1337 | ||
1338 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
1339 | if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_READY) == 0, | |
1340 | 100)) { | |
1341 | DRM_ERROR("timeout waiting for SBI to become ready\n"); | |
1342 | goto out_unlock; | |
1343 | } | |
1344 | ||
1345 | I915_WRITE(SBI_ADDR, | |
1346 | (reg << 16)); | |
1347 | I915_WRITE(SBI_DATA, | |
1348 | value); | |
1349 | I915_WRITE(SBI_CTL_STAT, | |
1350 | SBI_BUSY | | |
1351 | SBI_CTL_OP_CRWR); | |
1352 | ||
1353 | if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_READY | SBI_RESPONSE_SUCCESS)) == 0, | |
1354 | 100)) { | |
1355 | DRM_ERROR("timeout waiting for SBI to complete write transaction\n"); | |
1356 | goto out_unlock; | |
1357 | } | |
1358 | ||
1359 | out_unlock: | |
1360 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
1361 | } | |
1362 | ||
1363 | static u32 | |
1364 | intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg) | |
1365 | { | |
1366 | unsigned long flags; | |
1367 | u32 value; | |
1368 | ||
1369 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
1370 | if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_READY) == 0, | |
1371 | 100)) { | |
1372 | DRM_ERROR("timeout waiting for SBI to become ready\n"); | |
1373 | goto out_unlock; | |
1374 | } | |
1375 | ||
1376 | I915_WRITE(SBI_ADDR, | |
1377 | (reg << 16)); | |
1378 | I915_WRITE(SBI_CTL_STAT, | |
1379 | SBI_BUSY | | |
1380 | SBI_CTL_OP_CRRD); | |
1381 | ||
1382 | if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_READY | SBI_RESPONSE_SUCCESS)) == 0, | |
1383 | 100)) { | |
1384 | DRM_ERROR("timeout waiting for SBI to complete read transaction\n"); | |
1385 | goto out_unlock; | |
1386 | } | |
1387 | ||
1388 | value = I915_READ(SBI_DATA); | |
1389 | ||
1390 | out_unlock: | |
1391 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
1392 | return value; | |
1393 | } | |
1394 | ||
92f2584a JB |
1395 | /** |
1396 | * intel_enable_pch_pll - enable PCH PLL | |
1397 | * @dev_priv: i915 private structure | |
1398 | * @pipe: pipe PLL to enable | |
1399 | * | |
1400 | * The PCH PLL needs to be enabled before the PCH transcoder, since it | |
1401 | * drives the transcoder clock. | |
1402 | */ | |
ee7b9f93 | 1403 | static void intel_enable_pch_pll(struct intel_crtc *intel_crtc) |
92f2584a | 1404 | { |
ee7b9f93 | 1405 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
48da64a8 | 1406 | struct intel_pch_pll *pll; |
92f2584a JB |
1407 | int reg; |
1408 | u32 val; | |
1409 | ||
48da64a8 | 1410 | /* PCH PLLs only available on ILK, SNB and IVB */ |
92f2584a | 1411 | BUG_ON(dev_priv->info->gen < 5); |
48da64a8 CW |
1412 | pll = intel_crtc->pch_pll; |
1413 | if (pll == NULL) | |
1414 | return; | |
1415 | ||
1416 | if (WARN_ON(pll->refcount == 0)) | |
1417 | return; | |
ee7b9f93 JB |
1418 | |
1419 | DRM_DEBUG_KMS("enable PCH PLL %x (active %d, on? %d)for crtc %d\n", | |
1420 | pll->pll_reg, pll->active, pll->on, | |
1421 | intel_crtc->base.base.id); | |
92f2584a JB |
1422 | |
1423 | /* PCH refclock must be enabled first */ | |
1424 | assert_pch_refclk_enabled(dev_priv); | |
1425 | ||
ee7b9f93 JB |
1426 | if (pll->active++ && pll->on) { |
1427 | assert_pch_pll_enabled(dev_priv, intel_crtc); | |
1428 | return; | |
1429 | } | |
1430 | ||
1431 | DRM_DEBUG_KMS("enabling PCH PLL %x\n", pll->pll_reg); | |
1432 | ||
1433 | reg = pll->pll_reg; | |
92f2584a JB |
1434 | val = I915_READ(reg); |
1435 | val |= DPLL_VCO_ENABLE; | |
1436 | I915_WRITE(reg, val); | |
1437 | POSTING_READ(reg); | |
1438 | udelay(200); | |
ee7b9f93 JB |
1439 | |
1440 | pll->on = true; | |
92f2584a JB |
1441 | } |
1442 | ||
ee7b9f93 | 1443 | static void intel_disable_pch_pll(struct intel_crtc *intel_crtc) |
92f2584a | 1444 | { |
ee7b9f93 JB |
1445 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
1446 | struct intel_pch_pll *pll = intel_crtc->pch_pll; | |
92f2584a | 1447 | int reg; |
ee7b9f93 | 1448 | u32 val; |
4c609cb8 | 1449 | |
92f2584a JB |
1450 | /* PCH only available on ILK+ */ |
1451 | BUG_ON(dev_priv->info->gen < 5); | |
ee7b9f93 JB |
1452 | if (pll == NULL) |
1453 | return; | |
92f2584a | 1454 | |
48da64a8 CW |
1455 | if (WARN_ON(pll->refcount == 0)) |
1456 | return; | |
7a419866 | 1457 | |
ee7b9f93 JB |
1458 | DRM_DEBUG_KMS("disable PCH PLL %x (active %d, on? %d) for crtc %d\n", |
1459 | pll->pll_reg, pll->active, pll->on, | |
1460 | intel_crtc->base.base.id); | |
7a419866 | 1461 | |
48da64a8 CW |
1462 | if (WARN_ON(pll->active == 0)) { |
1463 | assert_pch_pll_disabled(dev_priv, intel_crtc); | |
1464 | return; | |
1465 | } | |
1466 | ||
ee7b9f93 JB |
1467 | if (--pll->active) { |
1468 | assert_pch_pll_enabled(dev_priv, intel_crtc); | |
7a419866 | 1469 | return; |
ee7b9f93 JB |
1470 | } |
1471 | ||
1472 | DRM_DEBUG_KMS("disabling PCH PLL %x\n", pll->pll_reg); | |
1473 | ||
1474 | /* Make sure transcoder isn't still depending on us */ | |
1475 | assert_transcoder_disabled(dev_priv, intel_crtc->pipe); | |
7a419866 | 1476 | |
ee7b9f93 | 1477 | reg = pll->pll_reg; |
92f2584a JB |
1478 | val = I915_READ(reg); |
1479 | val &= ~DPLL_VCO_ENABLE; | |
1480 | I915_WRITE(reg, val); | |
1481 | POSTING_READ(reg); | |
1482 | udelay(200); | |
ee7b9f93 JB |
1483 | |
1484 | pll->on = false; | |
92f2584a JB |
1485 | } |
1486 | ||
040484af JB |
1487 | static void intel_enable_transcoder(struct drm_i915_private *dev_priv, |
1488 | enum pipe pipe) | |
1489 | { | |
1490 | int reg; | |
5f7f726d | 1491 | u32 val, pipeconf_val; |
7c26e5c6 | 1492 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
040484af JB |
1493 | |
1494 | /* PCH only available on ILK+ */ | |
1495 | BUG_ON(dev_priv->info->gen < 5); | |
1496 | ||
1497 | /* Make sure PCH DPLL is enabled */ | |
ee7b9f93 | 1498 | assert_pch_pll_enabled(dev_priv, to_intel_crtc(crtc)); |
040484af JB |
1499 | |
1500 | /* FDI must be feeding us bits for PCH ports */ | |
1501 | assert_fdi_tx_enabled(dev_priv, pipe); | |
1502 | assert_fdi_rx_enabled(dev_priv, pipe); | |
1503 | ||
59c859d6 ED |
1504 | if (IS_HASWELL(dev_priv->dev) && pipe > 0) { |
1505 | DRM_ERROR("Attempting to enable transcoder on Haswell with pipe > 0\n"); | |
1506 | return; | |
1507 | } | |
040484af JB |
1508 | reg = TRANSCONF(pipe); |
1509 | val = I915_READ(reg); | |
5f7f726d | 1510 | pipeconf_val = I915_READ(PIPECONF(pipe)); |
e9bcff5c JB |
1511 | |
1512 | if (HAS_PCH_IBX(dev_priv->dev)) { | |
1513 | /* | |
1514 | * make the BPC in transcoder be consistent with | |
1515 | * that in pipeconf reg. | |
1516 | */ | |
1517 | val &= ~PIPE_BPC_MASK; | |
5f7f726d | 1518 | val |= pipeconf_val & PIPE_BPC_MASK; |
e9bcff5c | 1519 | } |
5f7f726d PZ |
1520 | |
1521 | val &= ~TRANS_INTERLACE_MASK; | |
1522 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK) | |
7c26e5c6 PZ |
1523 | if (HAS_PCH_IBX(dev_priv->dev) && |
1524 | intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) | |
1525 | val |= TRANS_LEGACY_INTERLACED_ILK; | |
1526 | else | |
1527 | val |= TRANS_INTERLACED; | |
5f7f726d PZ |
1528 | else |
1529 | val |= TRANS_PROGRESSIVE; | |
1530 | ||
040484af JB |
1531 | I915_WRITE(reg, val | TRANS_ENABLE); |
1532 | if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100)) | |
1533 | DRM_ERROR("failed to enable transcoder %d\n", pipe); | |
1534 | } | |
1535 | ||
1536 | static void intel_disable_transcoder(struct drm_i915_private *dev_priv, | |
1537 | enum pipe pipe) | |
1538 | { | |
1539 | int reg; | |
1540 | u32 val; | |
1541 | ||
1542 | /* FDI relies on the transcoder */ | |
1543 | assert_fdi_tx_disabled(dev_priv, pipe); | |
1544 | assert_fdi_rx_disabled(dev_priv, pipe); | |
1545 | ||
291906f1 JB |
1546 | /* Ports must be off as well */ |
1547 | assert_pch_ports_disabled(dev_priv, pipe); | |
1548 | ||
040484af JB |
1549 | reg = TRANSCONF(pipe); |
1550 | val = I915_READ(reg); | |
1551 | val &= ~TRANS_ENABLE; | |
1552 | I915_WRITE(reg, val); | |
1553 | /* wait for PCH transcoder off, transcoder state */ | |
1554 | if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50)) | |
4c9c18c2 | 1555 | DRM_ERROR("failed to disable transcoder %d\n", pipe); |
040484af JB |
1556 | } |
1557 | ||
b24e7179 | 1558 | /** |
309cfea8 | 1559 | * intel_enable_pipe - enable a pipe, asserting requirements |
b24e7179 JB |
1560 | * @dev_priv: i915 private structure |
1561 | * @pipe: pipe to enable | |
040484af | 1562 | * @pch_port: on ILK+, is this pipe driving a PCH port or not |
b24e7179 JB |
1563 | * |
1564 | * Enable @pipe, making sure that various hardware specific requirements | |
1565 | * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc. | |
1566 | * | |
1567 | * @pipe should be %PIPE_A or %PIPE_B. | |
1568 | * | |
1569 | * Will wait until the pipe is actually running (i.e. first vblank) before | |
1570 | * returning. | |
1571 | */ | |
040484af JB |
1572 | static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, |
1573 | bool pch_port) | |
b24e7179 JB |
1574 | { |
1575 | int reg; | |
1576 | u32 val; | |
1577 | ||
1578 | /* | |
1579 | * A pipe without a PLL won't actually be able to drive bits from | |
1580 | * a plane. On ILK+ the pipe PLLs are integrated, so we don't | |
1581 | * need the check. | |
1582 | */ | |
1583 | if (!HAS_PCH_SPLIT(dev_priv->dev)) | |
1584 | assert_pll_enabled(dev_priv, pipe); | |
040484af JB |
1585 | else { |
1586 | if (pch_port) { | |
1587 | /* if driving the PCH, we need FDI enabled */ | |
1588 | assert_fdi_rx_pll_enabled(dev_priv, pipe); | |
1589 | assert_fdi_tx_pll_enabled(dev_priv, pipe); | |
1590 | } | |
1591 | /* FIXME: assert CPU port conditions for SNB+ */ | |
1592 | } | |
b24e7179 JB |
1593 | |
1594 | reg = PIPECONF(pipe); | |
1595 | val = I915_READ(reg); | |
00d70b15 CW |
1596 | if (val & PIPECONF_ENABLE) |
1597 | return; | |
1598 | ||
1599 | I915_WRITE(reg, val | PIPECONF_ENABLE); | |
b24e7179 JB |
1600 | intel_wait_for_vblank(dev_priv->dev, pipe); |
1601 | } | |
1602 | ||
1603 | /** | |
309cfea8 | 1604 | * intel_disable_pipe - disable a pipe, asserting requirements |
b24e7179 JB |
1605 | * @dev_priv: i915 private structure |
1606 | * @pipe: pipe to disable | |
1607 | * | |
1608 | * Disable @pipe, making sure that various hardware specific requirements | |
1609 | * are met, if applicable, e.g. plane disabled, panel fitter off, etc. | |
1610 | * | |
1611 | * @pipe should be %PIPE_A or %PIPE_B. | |
1612 | * | |
1613 | * Will wait until the pipe has shut down before returning. | |
1614 | */ | |
1615 | static void intel_disable_pipe(struct drm_i915_private *dev_priv, | |
1616 | enum pipe pipe) | |
1617 | { | |
1618 | int reg; | |
1619 | u32 val; | |
1620 | ||
1621 | /* | |
1622 | * Make sure planes won't keep trying to pump pixels to us, | |
1623 | * or we might hang the display. | |
1624 | */ | |
1625 | assert_planes_disabled(dev_priv, pipe); | |
1626 | ||
1627 | /* Don't disable pipe A or pipe A PLLs if needed */ | |
1628 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) | |
1629 | return; | |
1630 | ||
1631 | reg = PIPECONF(pipe); | |
1632 | val = I915_READ(reg); | |
00d70b15 CW |
1633 | if ((val & PIPECONF_ENABLE) == 0) |
1634 | return; | |
1635 | ||
1636 | I915_WRITE(reg, val & ~PIPECONF_ENABLE); | |
b24e7179 JB |
1637 | intel_wait_for_pipe_off(dev_priv->dev, pipe); |
1638 | } | |
1639 | ||
d74362c9 KP |
1640 | /* |
1641 | * Plane regs are double buffered, going from enabled->disabled needs a | |
1642 | * trigger in order to latch. The display address reg provides this. | |
1643 | */ | |
6f1d69b0 | 1644 | void intel_flush_display_plane(struct drm_i915_private *dev_priv, |
d74362c9 KP |
1645 | enum plane plane) |
1646 | { | |
1647 | I915_WRITE(DSPADDR(plane), I915_READ(DSPADDR(plane))); | |
1648 | I915_WRITE(DSPSURF(plane), I915_READ(DSPSURF(plane))); | |
1649 | } | |
1650 | ||
b24e7179 JB |
1651 | /** |
1652 | * intel_enable_plane - enable a display plane on a given pipe | |
1653 | * @dev_priv: i915 private structure | |
1654 | * @plane: plane to enable | |
1655 | * @pipe: pipe being fed | |
1656 | * | |
1657 | * Enable @plane on @pipe, making sure that @pipe is running first. | |
1658 | */ | |
1659 | static void intel_enable_plane(struct drm_i915_private *dev_priv, | |
1660 | enum plane plane, enum pipe pipe) | |
1661 | { | |
1662 | int reg; | |
1663 | u32 val; | |
1664 | ||
1665 | /* If the pipe isn't enabled, we can't pump pixels and may hang */ | |
1666 | assert_pipe_enabled(dev_priv, pipe); | |
1667 | ||
1668 | reg = DSPCNTR(plane); | |
1669 | val = I915_READ(reg); | |
00d70b15 CW |
1670 | if (val & DISPLAY_PLANE_ENABLE) |
1671 | return; | |
1672 | ||
1673 | I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE); | |
d74362c9 | 1674 | intel_flush_display_plane(dev_priv, plane); |
b24e7179 JB |
1675 | intel_wait_for_vblank(dev_priv->dev, pipe); |
1676 | } | |
1677 | ||
b24e7179 JB |
1678 | /** |
1679 | * intel_disable_plane - disable a display plane | |
1680 | * @dev_priv: i915 private structure | |
1681 | * @plane: plane to disable | |
1682 | * @pipe: pipe consuming the data | |
1683 | * | |
1684 | * Disable @plane; should be an independent operation. | |
1685 | */ | |
1686 | static void intel_disable_plane(struct drm_i915_private *dev_priv, | |
1687 | enum plane plane, enum pipe pipe) | |
1688 | { | |
1689 | int reg; | |
1690 | u32 val; | |
1691 | ||
1692 | reg = DSPCNTR(plane); | |
1693 | val = I915_READ(reg); | |
00d70b15 CW |
1694 | if ((val & DISPLAY_PLANE_ENABLE) == 0) |
1695 | return; | |
1696 | ||
1697 | I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE); | |
b24e7179 JB |
1698 | intel_flush_display_plane(dev_priv, plane); |
1699 | intel_wait_for_vblank(dev_priv->dev, pipe); | |
1700 | } | |
1701 | ||
47a05eca | 1702 | static void disable_pch_dp(struct drm_i915_private *dev_priv, |
f0575e92 | 1703 | enum pipe pipe, int reg, u32 port_sel) |
47a05eca JB |
1704 | { |
1705 | u32 val = I915_READ(reg); | |
4e634389 | 1706 | if (dp_pipe_enabled(dev_priv, pipe, port_sel, val)) { |
f0575e92 | 1707 | DRM_DEBUG_KMS("Disabling pch dp %x on pipe %d\n", reg, pipe); |
47a05eca | 1708 | I915_WRITE(reg, val & ~DP_PORT_EN); |
f0575e92 | 1709 | } |
47a05eca JB |
1710 | } |
1711 | ||
1712 | static void disable_pch_hdmi(struct drm_i915_private *dev_priv, | |
1713 | enum pipe pipe, int reg) | |
1714 | { | |
1715 | u32 val = I915_READ(reg); | |
1519b995 | 1716 | if (hdmi_pipe_enabled(dev_priv, val, pipe)) { |
f0575e92 KP |
1717 | DRM_DEBUG_KMS("Disabling pch HDMI %x on pipe %d\n", |
1718 | reg, pipe); | |
47a05eca | 1719 | I915_WRITE(reg, val & ~PORT_ENABLE); |
f0575e92 | 1720 | } |
47a05eca JB |
1721 | } |
1722 | ||
1723 | /* Disable any ports connected to this transcoder */ | |
1724 | static void intel_disable_pch_ports(struct drm_i915_private *dev_priv, | |
1725 | enum pipe pipe) | |
1726 | { | |
1727 | u32 reg, val; | |
1728 | ||
1729 | val = I915_READ(PCH_PP_CONTROL); | |
1730 | I915_WRITE(PCH_PP_CONTROL, val | PANEL_UNLOCK_REGS); | |
1731 | ||
f0575e92 KP |
1732 | disable_pch_dp(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); |
1733 | disable_pch_dp(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); | |
1734 | disable_pch_dp(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); | |
47a05eca JB |
1735 | |
1736 | reg = PCH_ADPA; | |
1737 | val = I915_READ(reg); | |
1519b995 | 1738 | if (adpa_pipe_enabled(dev_priv, val, pipe)) |
47a05eca JB |
1739 | I915_WRITE(reg, val & ~ADPA_DAC_ENABLE); |
1740 | ||
1741 | reg = PCH_LVDS; | |
1742 | val = I915_READ(reg); | |
1519b995 KP |
1743 | if (lvds_pipe_enabled(dev_priv, val, pipe)) { |
1744 | DRM_DEBUG_KMS("disable lvds on pipe %d val 0x%08x\n", pipe, val); | |
47a05eca JB |
1745 | I915_WRITE(reg, val & ~LVDS_PORT_EN); |
1746 | POSTING_READ(reg); | |
1747 | udelay(100); | |
1748 | } | |
1749 | ||
1750 | disable_pch_hdmi(dev_priv, pipe, HDMIB); | |
1751 | disable_pch_hdmi(dev_priv, pipe, HDMIC); | |
1752 | disable_pch_hdmi(dev_priv, pipe, HDMID); | |
1753 | } | |
1754 | ||
127bd2ac | 1755 | int |
48b956c5 | 1756 | intel_pin_and_fence_fb_obj(struct drm_device *dev, |
05394f39 | 1757 | struct drm_i915_gem_object *obj, |
919926ae | 1758 | struct intel_ring_buffer *pipelined) |
6b95a207 | 1759 | { |
ce453d81 | 1760 | struct drm_i915_private *dev_priv = dev->dev_private; |
6b95a207 KH |
1761 | u32 alignment; |
1762 | int ret; | |
1763 | ||
05394f39 | 1764 | switch (obj->tiling_mode) { |
6b95a207 | 1765 | case I915_TILING_NONE: |
534843da CW |
1766 | if (IS_BROADWATER(dev) || IS_CRESTLINE(dev)) |
1767 | alignment = 128 * 1024; | |
a6c45cf0 | 1768 | else if (INTEL_INFO(dev)->gen >= 4) |
534843da CW |
1769 | alignment = 4 * 1024; |
1770 | else | |
1771 | alignment = 64 * 1024; | |
6b95a207 KH |
1772 | break; |
1773 | case I915_TILING_X: | |
1774 | /* pin() will align the object as required by fence */ | |
1775 | alignment = 0; | |
1776 | break; | |
1777 | case I915_TILING_Y: | |
1778 | /* FIXME: Is this true? */ | |
1779 | DRM_ERROR("Y tiled not allowed for scan out buffers\n"); | |
1780 | return -EINVAL; | |
1781 | default: | |
1782 | BUG(); | |
1783 | } | |
1784 | ||
ce453d81 | 1785 | dev_priv->mm.interruptible = false; |
2da3b9b9 | 1786 | ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined); |
48b956c5 | 1787 | if (ret) |
ce453d81 | 1788 | goto err_interruptible; |
6b95a207 KH |
1789 | |
1790 | /* Install a fence for tiled scan-out. Pre-i965 always needs a | |
1791 | * fence, whereas 965+ only requires a fence if using | |
1792 | * framebuffer compression. For simplicity, we always install | |
1793 | * a fence as the cost is not that onerous. | |
1794 | */ | |
06d98131 | 1795 | ret = i915_gem_object_get_fence(obj); |
9a5a53b3 CW |
1796 | if (ret) |
1797 | goto err_unpin; | |
1690e1eb | 1798 | |
9a5a53b3 | 1799 | i915_gem_object_pin_fence(obj); |
6b95a207 | 1800 | |
ce453d81 | 1801 | dev_priv->mm.interruptible = true; |
6b95a207 | 1802 | return 0; |
48b956c5 CW |
1803 | |
1804 | err_unpin: | |
1805 | i915_gem_object_unpin(obj); | |
ce453d81 CW |
1806 | err_interruptible: |
1807 | dev_priv->mm.interruptible = true; | |
48b956c5 | 1808 | return ret; |
6b95a207 KH |
1809 | } |
1810 | ||
1690e1eb CW |
1811 | void intel_unpin_fb_obj(struct drm_i915_gem_object *obj) |
1812 | { | |
1813 | i915_gem_object_unpin_fence(obj); | |
1814 | i915_gem_object_unpin(obj); | |
1815 | } | |
1816 | ||
17638cd6 JB |
1817 | static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb, |
1818 | int x, int y) | |
81255565 JB |
1819 | { |
1820 | struct drm_device *dev = crtc->dev; | |
1821 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1822 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1823 | struct intel_framebuffer *intel_fb; | |
05394f39 | 1824 | struct drm_i915_gem_object *obj; |
81255565 JB |
1825 | int plane = intel_crtc->plane; |
1826 | unsigned long Start, Offset; | |
81255565 | 1827 | u32 dspcntr; |
5eddb70b | 1828 | u32 reg; |
81255565 JB |
1829 | |
1830 | switch (plane) { | |
1831 | case 0: | |
1832 | case 1: | |
1833 | break; | |
1834 | default: | |
1835 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); | |
1836 | return -EINVAL; | |
1837 | } | |
1838 | ||
1839 | intel_fb = to_intel_framebuffer(fb); | |
1840 | obj = intel_fb->obj; | |
81255565 | 1841 | |
5eddb70b CW |
1842 | reg = DSPCNTR(plane); |
1843 | dspcntr = I915_READ(reg); | |
81255565 JB |
1844 | /* Mask out pixel format bits in case we change it */ |
1845 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
1846 | switch (fb->bits_per_pixel) { | |
1847 | case 8: | |
1848 | dspcntr |= DISPPLANE_8BPP; | |
1849 | break; | |
1850 | case 16: | |
1851 | if (fb->depth == 15) | |
1852 | dspcntr |= DISPPLANE_15_16BPP; | |
1853 | else | |
1854 | dspcntr |= DISPPLANE_16BPP; | |
1855 | break; | |
1856 | case 24: | |
1857 | case 32: | |
1858 | dspcntr |= DISPPLANE_32BPP_NO_ALPHA; | |
1859 | break; | |
1860 | default: | |
17638cd6 | 1861 | DRM_ERROR("Unknown color depth %d\n", fb->bits_per_pixel); |
81255565 JB |
1862 | return -EINVAL; |
1863 | } | |
a6c45cf0 | 1864 | if (INTEL_INFO(dev)->gen >= 4) { |
05394f39 | 1865 | if (obj->tiling_mode != I915_TILING_NONE) |
81255565 JB |
1866 | dspcntr |= DISPPLANE_TILED; |
1867 | else | |
1868 | dspcntr &= ~DISPPLANE_TILED; | |
1869 | } | |
1870 | ||
5eddb70b | 1871 | I915_WRITE(reg, dspcntr); |
81255565 | 1872 | |
05394f39 | 1873 | Start = obj->gtt_offset; |
01f2c773 | 1874 | Offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); |
81255565 | 1875 | |
4e6cfefc | 1876 | DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n", |
01f2c773 VS |
1877 | Start, Offset, x, y, fb->pitches[0]); |
1878 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); | |
a6c45cf0 | 1879 | if (INTEL_INFO(dev)->gen >= 4) { |
446f2545 | 1880 | I915_MODIFY_DISPBASE(DSPSURF(plane), Start); |
5eddb70b CW |
1881 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
1882 | I915_WRITE(DSPADDR(plane), Offset); | |
1883 | } else | |
1884 | I915_WRITE(DSPADDR(plane), Start + Offset); | |
1885 | POSTING_READ(reg); | |
81255565 | 1886 | |
17638cd6 JB |
1887 | return 0; |
1888 | } | |
1889 | ||
1890 | static int ironlake_update_plane(struct drm_crtc *crtc, | |
1891 | struct drm_framebuffer *fb, int x, int y) | |
1892 | { | |
1893 | struct drm_device *dev = crtc->dev; | |
1894 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1895 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1896 | struct intel_framebuffer *intel_fb; | |
1897 | struct drm_i915_gem_object *obj; | |
1898 | int plane = intel_crtc->plane; | |
1899 | unsigned long Start, Offset; | |
1900 | u32 dspcntr; | |
1901 | u32 reg; | |
1902 | ||
1903 | switch (plane) { | |
1904 | case 0: | |
1905 | case 1: | |
27f8227b | 1906 | case 2: |
17638cd6 JB |
1907 | break; |
1908 | default: | |
1909 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); | |
1910 | return -EINVAL; | |
1911 | } | |
1912 | ||
1913 | intel_fb = to_intel_framebuffer(fb); | |
1914 | obj = intel_fb->obj; | |
1915 | ||
1916 | reg = DSPCNTR(plane); | |
1917 | dspcntr = I915_READ(reg); | |
1918 | /* Mask out pixel format bits in case we change it */ | |
1919 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
1920 | switch (fb->bits_per_pixel) { | |
1921 | case 8: | |
1922 | dspcntr |= DISPPLANE_8BPP; | |
1923 | break; | |
1924 | case 16: | |
1925 | if (fb->depth != 16) | |
1926 | return -EINVAL; | |
1927 | ||
1928 | dspcntr |= DISPPLANE_16BPP; | |
1929 | break; | |
1930 | case 24: | |
1931 | case 32: | |
1932 | if (fb->depth == 24) | |
1933 | dspcntr |= DISPPLANE_32BPP_NO_ALPHA; | |
1934 | else if (fb->depth == 30) | |
1935 | dspcntr |= DISPPLANE_32BPP_30BIT_NO_ALPHA; | |
1936 | else | |
1937 | return -EINVAL; | |
1938 | break; | |
1939 | default: | |
1940 | DRM_ERROR("Unknown color depth %d\n", fb->bits_per_pixel); | |
1941 | return -EINVAL; | |
1942 | } | |
1943 | ||
1944 | if (obj->tiling_mode != I915_TILING_NONE) | |
1945 | dspcntr |= DISPPLANE_TILED; | |
1946 | else | |
1947 | dspcntr &= ~DISPPLANE_TILED; | |
1948 | ||
1949 | /* must disable */ | |
1950 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; | |
1951 | ||
1952 | I915_WRITE(reg, dspcntr); | |
1953 | ||
1954 | Start = obj->gtt_offset; | |
01f2c773 | 1955 | Offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); |
17638cd6 JB |
1956 | |
1957 | DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n", | |
01f2c773 VS |
1958 | Start, Offset, x, y, fb->pitches[0]); |
1959 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); | |
446f2545 | 1960 | I915_MODIFY_DISPBASE(DSPSURF(plane), Start); |
17638cd6 JB |
1961 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
1962 | I915_WRITE(DSPADDR(plane), Offset); | |
1963 | POSTING_READ(reg); | |
1964 | ||
1965 | return 0; | |
1966 | } | |
1967 | ||
1968 | /* Assume fb object is pinned & idle & fenced and just update base pointers */ | |
1969 | static int | |
1970 | intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb, | |
1971 | int x, int y, enum mode_set_atomic state) | |
1972 | { | |
1973 | struct drm_device *dev = crtc->dev; | |
1974 | struct drm_i915_private *dev_priv = dev->dev_private; | |
17638cd6 | 1975 | |
6b8e6ed0 CW |
1976 | if (dev_priv->display.disable_fbc) |
1977 | dev_priv->display.disable_fbc(dev); | |
3dec0095 | 1978 | intel_increase_pllclock(crtc); |
81255565 | 1979 | |
6b8e6ed0 | 1980 | return dev_priv->display.update_plane(crtc, fb, x, y); |
81255565 JB |
1981 | } |
1982 | ||
14667a4b CW |
1983 | static int |
1984 | intel_finish_fb(struct drm_framebuffer *old_fb) | |
1985 | { | |
1986 | struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj; | |
1987 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; | |
1988 | bool was_interruptible = dev_priv->mm.interruptible; | |
1989 | int ret; | |
1990 | ||
1991 | wait_event(dev_priv->pending_flip_queue, | |
1992 | atomic_read(&dev_priv->mm.wedged) || | |
1993 | atomic_read(&obj->pending_flip) == 0); | |
1994 | ||
1995 | /* Big Hammer, we also need to ensure that any pending | |
1996 | * MI_WAIT_FOR_EVENT inside a user batch buffer on the | |
1997 | * current scanout is retired before unpinning the old | |
1998 | * framebuffer. | |
1999 | * | |
2000 | * This should only fail upon a hung GPU, in which case we | |
2001 | * can safely continue. | |
2002 | */ | |
2003 | dev_priv->mm.interruptible = false; | |
2004 | ret = i915_gem_object_finish_gpu(obj); | |
2005 | dev_priv->mm.interruptible = was_interruptible; | |
2006 | ||
2007 | return ret; | |
2008 | } | |
2009 | ||
5c3b82e2 | 2010 | static int |
3c4fdcfb KH |
2011 | intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, |
2012 | struct drm_framebuffer *old_fb) | |
79e53945 JB |
2013 | { |
2014 | struct drm_device *dev = crtc->dev; | |
6b8e6ed0 | 2015 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 JB |
2016 | struct drm_i915_master_private *master_priv; |
2017 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5c3b82e2 | 2018 | int ret; |
79e53945 JB |
2019 | |
2020 | /* no fb bound */ | |
2021 | if (!crtc->fb) { | |
a5071c2f | 2022 | DRM_ERROR("No FB bound\n"); |
5c3b82e2 CW |
2023 | return 0; |
2024 | } | |
2025 | ||
5826eca5 ED |
2026 | if(intel_crtc->plane > dev_priv->num_pipe) { |
2027 | DRM_ERROR("no plane for crtc: plane %d, num_pipes %d\n", | |
2028 | intel_crtc->plane, | |
2029 | dev_priv->num_pipe); | |
5c3b82e2 | 2030 | return -EINVAL; |
79e53945 JB |
2031 | } |
2032 | ||
5c3b82e2 | 2033 | mutex_lock(&dev->struct_mutex); |
265db958 CW |
2034 | ret = intel_pin_and_fence_fb_obj(dev, |
2035 | to_intel_framebuffer(crtc->fb)->obj, | |
919926ae | 2036 | NULL); |
5c3b82e2 CW |
2037 | if (ret != 0) { |
2038 | mutex_unlock(&dev->struct_mutex); | |
a5071c2f | 2039 | DRM_ERROR("pin & fence failed\n"); |
5c3b82e2 CW |
2040 | return ret; |
2041 | } | |
79e53945 | 2042 | |
14667a4b CW |
2043 | if (old_fb) |
2044 | intel_finish_fb(old_fb); | |
265db958 | 2045 | |
6b8e6ed0 | 2046 | ret = dev_priv->display.update_plane(crtc, crtc->fb, x, y); |
4e6cfefc | 2047 | if (ret) { |
1690e1eb | 2048 | intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj); |
5c3b82e2 | 2049 | mutex_unlock(&dev->struct_mutex); |
a5071c2f | 2050 | DRM_ERROR("failed to update base address\n"); |
4e6cfefc | 2051 | return ret; |
79e53945 | 2052 | } |
3c4fdcfb | 2053 | |
b7f1de28 CW |
2054 | if (old_fb) { |
2055 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
1690e1eb | 2056 | intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj); |
b7f1de28 | 2057 | } |
652c393a | 2058 | |
6b8e6ed0 | 2059 | intel_update_fbc(dev); |
5c3b82e2 | 2060 | mutex_unlock(&dev->struct_mutex); |
79e53945 JB |
2061 | |
2062 | if (!dev->primary->master) | |
5c3b82e2 | 2063 | return 0; |
79e53945 JB |
2064 | |
2065 | master_priv = dev->primary->master->driver_priv; | |
2066 | if (!master_priv->sarea_priv) | |
5c3b82e2 | 2067 | return 0; |
79e53945 | 2068 | |
265db958 | 2069 | if (intel_crtc->pipe) { |
79e53945 JB |
2070 | master_priv->sarea_priv->pipeB_x = x; |
2071 | master_priv->sarea_priv->pipeB_y = y; | |
5c3b82e2 CW |
2072 | } else { |
2073 | master_priv->sarea_priv->pipeA_x = x; | |
2074 | master_priv->sarea_priv->pipeA_y = y; | |
79e53945 | 2075 | } |
5c3b82e2 CW |
2076 | |
2077 | return 0; | |
79e53945 JB |
2078 | } |
2079 | ||
5eddb70b | 2080 | static void ironlake_set_pll_edp(struct drm_crtc *crtc, int clock) |
32f9d658 ZW |
2081 | { |
2082 | struct drm_device *dev = crtc->dev; | |
2083 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2084 | u32 dpa_ctl; | |
2085 | ||
28c97730 | 2086 | DRM_DEBUG_KMS("eDP PLL enable for clock %d\n", clock); |
32f9d658 ZW |
2087 | dpa_ctl = I915_READ(DP_A); |
2088 | dpa_ctl &= ~DP_PLL_FREQ_MASK; | |
2089 | ||
2090 | if (clock < 200000) { | |
2091 | u32 temp; | |
2092 | dpa_ctl |= DP_PLL_FREQ_160MHZ; | |
2093 | /* workaround for 160Mhz: | |
2094 | 1) program 0x4600c bits 15:0 = 0x8124 | |
2095 | 2) program 0x46010 bit 0 = 1 | |
2096 | 3) program 0x46034 bit 24 = 1 | |
2097 | 4) program 0x64000 bit 14 = 1 | |
2098 | */ | |
2099 | temp = I915_READ(0x4600c); | |
2100 | temp &= 0xffff0000; | |
2101 | I915_WRITE(0x4600c, temp | 0x8124); | |
2102 | ||
2103 | temp = I915_READ(0x46010); | |
2104 | I915_WRITE(0x46010, temp | 1); | |
2105 | ||
2106 | temp = I915_READ(0x46034); | |
2107 | I915_WRITE(0x46034, temp | (1 << 24)); | |
2108 | } else { | |
2109 | dpa_ctl |= DP_PLL_FREQ_270MHZ; | |
2110 | } | |
2111 | I915_WRITE(DP_A, dpa_ctl); | |
2112 | ||
5eddb70b | 2113 | POSTING_READ(DP_A); |
32f9d658 ZW |
2114 | udelay(500); |
2115 | } | |
2116 | ||
5e84e1a4 ZW |
2117 | static void intel_fdi_normal_train(struct drm_crtc *crtc) |
2118 | { | |
2119 | struct drm_device *dev = crtc->dev; | |
2120 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2121 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2122 | int pipe = intel_crtc->pipe; | |
2123 | u32 reg, temp; | |
2124 | ||
2125 | /* enable normal train */ | |
2126 | reg = FDI_TX_CTL(pipe); | |
2127 | temp = I915_READ(reg); | |
61e499bf | 2128 | if (IS_IVYBRIDGE(dev)) { |
357555c0 JB |
2129 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
2130 | temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE; | |
61e499bf KP |
2131 | } else { |
2132 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2133 | temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE; | |
357555c0 | 2134 | } |
5e84e1a4 ZW |
2135 | I915_WRITE(reg, temp); |
2136 | ||
2137 | reg = FDI_RX_CTL(pipe); | |
2138 | temp = I915_READ(reg); | |
2139 | if (HAS_PCH_CPT(dev)) { | |
2140 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2141 | temp |= FDI_LINK_TRAIN_NORMAL_CPT; | |
2142 | } else { | |
2143 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2144 | temp |= FDI_LINK_TRAIN_NONE; | |
2145 | } | |
2146 | I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); | |
2147 | ||
2148 | /* wait one idle pattern time */ | |
2149 | POSTING_READ(reg); | |
2150 | udelay(1000); | |
357555c0 JB |
2151 | |
2152 | /* IVB wants error correction enabled */ | |
2153 | if (IS_IVYBRIDGE(dev)) | |
2154 | I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE | | |
2155 | FDI_FE_ERRC_ENABLE); | |
5e84e1a4 ZW |
2156 | } |
2157 | ||
291427f5 JB |
2158 | static void cpt_phase_pointer_enable(struct drm_device *dev, int pipe) |
2159 | { | |
2160 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2161 | u32 flags = I915_READ(SOUTH_CHICKEN1); | |
2162 | ||
2163 | flags |= FDI_PHASE_SYNC_OVR(pipe); | |
2164 | I915_WRITE(SOUTH_CHICKEN1, flags); /* once to unlock... */ | |
2165 | flags |= FDI_PHASE_SYNC_EN(pipe); | |
2166 | I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to enable */ | |
2167 | POSTING_READ(SOUTH_CHICKEN1); | |
2168 | } | |
2169 | ||
8db9d77b ZW |
2170 | /* The FDI link training functions for ILK/Ibexpeak. */ |
2171 | static void ironlake_fdi_link_train(struct drm_crtc *crtc) | |
2172 | { | |
2173 | struct drm_device *dev = crtc->dev; | |
2174 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2175 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2176 | int pipe = intel_crtc->pipe; | |
0fc932b8 | 2177 | int plane = intel_crtc->plane; |
5eddb70b | 2178 | u32 reg, temp, tries; |
8db9d77b | 2179 | |
0fc932b8 JB |
2180 | /* FDI needs bits from pipe & plane first */ |
2181 | assert_pipe_enabled(dev_priv, pipe); | |
2182 | assert_plane_enabled(dev_priv, plane); | |
2183 | ||
e1a44743 AJ |
2184 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
2185 | for train result */ | |
5eddb70b CW |
2186 | reg = FDI_RX_IMR(pipe); |
2187 | temp = I915_READ(reg); | |
e1a44743 AJ |
2188 | temp &= ~FDI_RX_SYMBOL_LOCK; |
2189 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
2190 | I915_WRITE(reg, temp); |
2191 | I915_READ(reg); | |
e1a44743 AJ |
2192 | udelay(150); |
2193 | ||
8db9d77b | 2194 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
2195 | reg = FDI_TX_CTL(pipe); |
2196 | temp = I915_READ(reg); | |
77ffb597 AJ |
2197 | temp &= ~(7 << 19); |
2198 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
8db9d77b ZW |
2199 | temp &= ~FDI_LINK_TRAIN_NONE; |
2200 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b | 2201 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 2202 | |
5eddb70b CW |
2203 | reg = FDI_RX_CTL(pipe); |
2204 | temp = I915_READ(reg); | |
8db9d77b ZW |
2205 | temp &= ~FDI_LINK_TRAIN_NONE; |
2206 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b CW |
2207 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2208 | ||
2209 | POSTING_READ(reg); | |
8db9d77b ZW |
2210 | udelay(150); |
2211 | ||
5b2adf89 | 2212 | /* Ironlake workaround, enable clock pointer after FDI enable*/ |
6f06ce18 JB |
2213 | if (HAS_PCH_IBX(dev)) { |
2214 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); | |
2215 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR | | |
2216 | FDI_RX_PHASE_SYNC_POINTER_EN); | |
2217 | } | |
5b2adf89 | 2218 | |
5eddb70b | 2219 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 2220 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 2221 | temp = I915_READ(reg); |
8db9d77b ZW |
2222 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2223 | ||
2224 | if ((temp & FDI_RX_BIT_LOCK)) { | |
2225 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
5eddb70b | 2226 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
8db9d77b ZW |
2227 | break; |
2228 | } | |
8db9d77b | 2229 | } |
e1a44743 | 2230 | if (tries == 5) |
5eddb70b | 2231 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
2232 | |
2233 | /* Train 2 */ | |
5eddb70b CW |
2234 | reg = FDI_TX_CTL(pipe); |
2235 | temp = I915_READ(reg); | |
8db9d77b ZW |
2236 | temp &= ~FDI_LINK_TRAIN_NONE; |
2237 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 2238 | I915_WRITE(reg, temp); |
8db9d77b | 2239 | |
5eddb70b CW |
2240 | reg = FDI_RX_CTL(pipe); |
2241 | temp = I915_READ(reg); | |
8db9d77b ZW |
2242 | temp &= ~FDI_LINK_TRAIN_NONE; |
2243 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 2244 | I915_WRITE(reg, temp); |
8db9d77b | 2245 | |
5eddb70b CW |
2246 | POSTING_READ(reg); |
2247 | udelay(150); | |
8db9d77b | 2248 | |
5eddb70b | 2249 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 2250 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 2251 | temp = I915_READ(reg); |
8db9d77b ZW |
2252 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2253 | ||
2254 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
5eddb70b | 2255 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
8db9d77b ZW |
2256 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
2257 | break; | |
2258 | } | |
8db9d77b | 2259 | } |
e1a44743 | 2260 | if (tries == 5) |
5eddb70b | 2261 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
2262 | |
2263 | DRM_DEBUG_KMS("FDI train done\n"); | |
5c5313c8 | 2264 | |
8db9d77b ZW |
2265 | } |
2266 | ||
0206e353 | 2267 | static const int snb_b_fdi_train_param[] = { |
8db9d77b ZW |
2268 | FDI_LINK_TRAIN_400MV_0DB_SNB_B, |
2269 | FDI_LINK_TRAIN_400MV_6DB_SNB_B, | |
2270 | FDI_LINK_TRAIN_600MV_3_5DB_SNB_B, | |
2271 | FDI_LINK_TRAIN_800MV_0DB_SNB_B, | |
2272 | }; | |
2273 | ||
2274 | /* The FDI link training functions for SNB/Cougarpoint. */ | |
2275 | static void gen6_fdi_link_train(struct drm_crtc *crtc) | |
2276 | { | |
2277 | struct drm_device *dev = crtc->dev; | |
2278 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2279 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2280 | int pipe = intel_crtc->pipe; | |
fa37d39e | 2281 | u32 reg, temp, i, retry; |
8db9d77b | 2282 | |
e1a44743 AJ |
2283 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
2284 | for train result */ | |
5eddb70b CW |
2285 | reg = FDI_RX_IMR(pipe); |
2286 | temp = I915_READ(reg); | |
e1a44743 AJ |
2287 | temp &= ~FDI_RX_SYMBOL_LOCK; |
2288 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
2289 | I915_WRITE(reg, temp); |
2290 | ||
2291 | POSTING_READ(reg); | |
e1a44743 AJ |
2292 | udelay(150); |
2293 | ||
8db9d77b | 2294 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
2295 | reg = FDI_TX_CTL(pipe); |
2296 | temp = I915_READ(reg); | |
77ffb597 AJ |
2297 | temp &= ~(7 << 19); |
2298 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
8db9d77b ZW |
2299 | temp &= ~FDI_LINK_TRAIN_NONE; |
2300 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2301 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2302 | /* SNB-B */ | |
2303 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
5eddb70b | 2304 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 2305 | |
5eddb70b CW |
2306 | reg = FDI_RX_CTL(pipe); |
2307 | temp = I915_READ(reg); | |
8db9d77b ZW |
2308 | if (HAS_PCH_CPT(dev)) { |
2309 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2310 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
2311 | } else { | |
2312 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2313 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2314 | } | |
5eddb70b CW |
2315 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2316 | ||
2317 | POSTING_READ(reg); | |
8db9d77b ZW |
2318 | udelay(150); |
2319 | ||
291427f5 JB |
2320 | if (HAS_PCH_CPT(dev)) |
2321 | cpt_phase_pointer_enable(dev, pipe); | |
2322 | ||
0206e353 | 2323 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
2324 | reg = FDI_TX_CTL(pipe); |
2325 | temp = I915_READ(reg); | |
8db9d77b ZW |
2326 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
2327 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
2328 | I915_WRITE(reg, temp); |
2329 | ||
2330 | POSTING_READ(reg); | |
8db9d77b ZW |
2331 | udelay(500); |
2332 | ||
fa37d39e SP |
2333 | for (retry = 0; retry < 5; retry++) { |
2334 | reg = FDI_RX_IIR(pipe); | |
2335 | temp = I915_READ(reg); | |
2336 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2337 | if (temp & FDI_RX_BIT_LOCK) { | |
2338 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
2339 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
2340 | break; | |
2341 | } | |
2342 | udelay(50); | |
8db9d77b | 2343 | } |
fa37d39e SP |
2344 | if (retry < 5) |
2345 | break; | |
8db9d77b ZW |
2346 | } |
2347 | if (i == 4) | |
5eddb70b | 2348 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
2349 | |
2350 | /* Train 2 */ | |
5eddb70b CW |
2351 | reg = FDI_TX_CTL(pipe); |
2352 | temp = I915_READ(reg); | |
8db9d77b ZW |
2353 | temp &= ~FDI_LINK_TRAIN_NONE; |
2354 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
2355 | if (IS_GEN6(dev)) { | |
2356 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2357 | /* SNB-B */ | |
2358 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
2359 | } | |
5eddb70b | 2360 | I915_WRITE(reg, temp); |
8db9d77b | 2361 | |
5eddb70b CW |
2362 | reg = FDI_RX_CTL(pipe); |
2363 | temp = I915_READ(reg); | |
8db9d77b ZW |
2364 | if (HAS_PCH_CPT(dev)) { |
2365 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2366 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
2367 | } else { | |
2368 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2369 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
2370 | } | |
5eddb70b CW |
2371 | I915_WRITE(reg, temp); |
2372 | ||
2373 | POSTING_READ(reg); | |
8db9d77b ZW |
2374 | udelay(150); |
2375 | ||
0206e353 | 2376 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
2377 | reg = FDI_TX_CTL(pipe); |
2378 | temp = I915_READ(reg); | |
8db9d77b ZW |
2379 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
2380 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
2381 | I915_WRITE(reg, temp); |
2382 | ||
2383 | POSTING_READ(reg); | |
8db9d77b ZW |
2384 | udelay(500); |
2385 | ||
fa37d39e SP |
2386 | for (retry = 0; retry < 5; retry++) { |
2387 | reg = FDI_RX_IIR(pipe); | |
2388 | temp = I915_READ(reg); | |
2389 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2390 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
2391 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
2392 | DRM_DEBUG_KMS("FDI train 2 done.\n"); | |
2393 | break; | |
2394 | } | |
2395 | udelay(50); | |
8db9d77b | 2396 | } |
fa37d39e SP |
2397 | if (retry < 5) |
2398 | break; | |
8db9d77b ZW |
2399 | } |
2400 | if (i == 4) | |
5eddb70b | 2401 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
2402 | |
2403 | DRM_DEBUG_KMS("FDI train done.\n"); | |
2404 | } | |
2405 | ||
357555c0 JB |
2406 | /* Manual link training for Ivy Bridge A0 parts */ |
2407 | static void ivb_manual_fdi_link_train(struct drm_crtc *crtc) | |
2408 | { | |
2409 | struct drm_device *dev = crtc->dev; | |
2410 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2411 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2412 | int pipe = intel_crtc->pipe; | |
2413 | u32 reg, temp, i; | |
2414 | ||
2415 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit | |
2416 | for train result */ | |
2417 | reg = FDI_RX_IMR(pipe); | |
2418 | temp = I915_READ(reg); | |
2419 | temp &= ~FDI_RX_SYMBOL_LOCK; | |
2420 | temp &= ~FDI_RX_BIT_LOCK; | |
2421 | I915_WRITE(reg, temp); | |
2422 | ||
2423 | POSTING_READ(reg); | |
2424 | udelay(150); | |
2425 | ||
2426 | /* enable CPU FDI TX and PCH FDI RX */ | |
2427 | reg = FDI_TX_CTL(pipe); | |
2428 | temp = I915_READ(reg); | |
2429 | temp &= ~(7 << 19); | |
2430 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
2431 | temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB); | |
2432 | temp |= FDI_LINK_TRAIN_PATTERN_1_IVB; | |
2433 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2434 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
c4f9c4c2 | 2435 | temp |= FDI_COMPOSITE_SYNC; |
357555c0 JB |
2436 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
2437 | ||
2438 | reg = FDI_RX_CTL(pipe); | |
2439 | temp = I915_READ(reg); | |
2440 | temp &= ~FDI_LINK_TRAIN_AUTO; | |
2441 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2442 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
c4f9c4c2 | 2443 | temp |= FDI_COMPOSITE_SYNC; |
357555c0 JB |
2444 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2445 | ||
2446 | POSTING_READ(reg); | |
2447 | udelay(150); | |
2448 | ||
291427f5 JB |
2449 | if (HAS_PCH_CPT(dev)) |
2450 | cpt_phase_pointer_enable(dev, pipe); | |
2451 | ||
0206e353 | 2452 | for (i = 0; i < 4; i++) { |
357555c0 JB |
2453 | reg = FDI_TX_CTL(pipe); |
2454 | temp = I915_READ(reg); | |
2455 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2456 | temp |= snb_b_fdi_train_param[i]; | |
2457 | I915_WRITE(reg, temp); | |
2458 | ||
2459 | POSTING_READ(reg); | |
2460 | udelay(500); | |
2461 | ||
2462 | reg = FDI_RX_IIR(pipe); | |
2463 | temp = I915_READ(reg); | |
2464 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2465 | ||
2466 | if (temp & FDI_RX_BIT_LOCK || | |
2467 | (I915_READ(reg) & FDI_RX_BIT_LOCK)) { | |
2468 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
2469 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
2470 | break; | |
2471 | } | |
2472 | } | |
2473 | if (i == 4) | |
2474 | DRM_ERROR("FDI train 1 fail!\n"); | |
2475 | ||
2476 | /* Train 2 */ | |
2477 | reg = FDI_TX_CTL(pipe); | |
2478 | temp = I915_READ(reg); | |
2479 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; | |
2480 | temp |= FDI_LINK_TRAIN_PATTERN_2_IVB; | |
2481 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2482 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
2483 | I915_WRITE(reg, temp); | |
2484 | ||
2485 | reg = FDI_RX_CTL(pipe); | |
2486 | temp = I915_READ(reg); | |
2487 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2488 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
2489 | I915_WRITE(reg, temp); | |
2490 | ||
2491 | POSTING_READ(reg); | |
2492 | udelay(150); | |
2493 | ||
0206e353 | 2494 | for (i = 0; i < 4; i++) { |
357555c0 JB |
2495 | reg = FDI_TX_CTL(pipe); |
2496 | temp = I915_READ(reg); | |
2497 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2498 | temp |= snb_b_fdi_train_param[i]; | |
2499 | I915_WRITE(reg, temp); | |
2500 | ||
2501 | POSTING_READ(reg); | |
2502 | udelay(500); | |
2503 | ||
2504 | reg = FDI_RX_IIR(pipe); | |
2505 | temp = I915_READ(reg); | |
2506 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2507 | ||
2508 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
2509 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
2510 | DRM_DEBUG_KMS("FDI train 2 done.\n"); | |
2511 | break; | |
2512 | } | |
2513 | } | |
2514 | if (i == 4) | |
2515 | DRM_ERROR("FDI train 2 fail!\n"); | |
2516 | ||
2517 | DRM_DEBUG_KMS("FDI train done.\n"); | |
2518 | } | |
2519 | ||
2520 | static void ironlake_fdi_pll_enable(struct drm_crtc *crtc) | |
2c07245f ZW |
2521 | { |
2522 | struct drm_device *dev = crtc->dev; | |
2523 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2524 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2525 | int pipe = intel_crtc->pipe; | |
5eddb70b | 2526 | u32 reg, temp; |
79e53945 | 2527 | |
c64e311e | 2528 | /* Write the TU size bits so error detection works */ |
5eddb70b CW |
2529 | I915_WRITE(FDI_RX_TUSIZE1(pipe), |
2530 | I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK); | |
c64e311e | 2531 | |
c98e9dcf | 2532 | /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ |
5eddb70b CW |
2533 | reg = FDI_RX_CTL(pipe); |
2534 | temp = I915_READ(reg); | |
2535 | temp &= ~((0x7 << 19) | (0x7 << 16)); | |
c98e9dcf | 2536 | temp |= (intel_crtc->fdi_lanes - 1) << 19; |
5eddb70b CW |
2537 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; |
2538 | I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE); | |
2539 | ||
2540 | POSTING_READ(reg); | |
c98e9dcf JB |
2541 | udelay(200); |
2542 | ||
2543 | /* Switch from Rawclk to PCDclk */ | |
5eddb70b CW |
2544 | temp = I915_READ(reg); |
2545 | I915_WRITE(reg, temp | FDI_PCDCLK); | |
2546 | ||
2547 | POSTING_READ(reg); | |
c98e9dcf JB |
2548 | udelay(200); |
2549 | ||
bf507ef7 ED |
2550 | /* On Haswell, the PLL configuration for ports and pipes is handled |
2551 | * separately, as part of DDI setup */ | |
2552 | if (!IS_HASWELL(dev)) { | |
2553 | /* Enable CPU FDI TX PLL, always on for Ironlake */ | |
2554 | reg = FDI_TX_CTL(pipe); | |
2555 | temp = I915_READ(reg); | |
2556 | if ((temp & FDI_TX_PLL_ENABLE) == 0) { | |
2557 | I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE); | |
5eddb70b | 2558 | |
bf507ef7 ED |
2559 | POSTING_READ(reg); |
2560 | udelay(100); | |
2561 | } | |
6be4a607 | 2562 | } |
0e23b99d JB |
2563 | } |
2564 | ||
291427f5 JB |
2565 | static void cpt_phase_pointer_disable(struct drm_device *dev, int pipe) |
2566 | { | |
2567 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2568 | u32 flags = I915_READ(SOUTH_CHICKEN1); | |
2569 | ||
2570 | flags &= ~(FDI_PHASE_SYNC_EN(pipe)); | |
2571 | I915_WRITE(SOUTH_CHICKEN1, flags); /* once to disable... */ | |
2572 | flags &= ~(FDI_PHASE_SYNC_OVR(pipe)); | |
2573 | I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to lock */ | |
2574 | POSTING_READ(SOUTH_CHICKEN1); | |
2575 | } | |
0fc932b8 JB |
2576 | static void ironlake_fdi_disable(struct drm_crtc *crtc) |
2577 | { | |
2578 | struct drm_device *dev = crtc->dev; | |
2579 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2580 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2581 | int pipe = intel_crtc->pipe; | |
2582 | u32 reg, temp; | |
2583 | ||
2584 | /* disable CPU FDI tx and PCH FDI rx */ | |
2585 | reg = FDI_TX_CTL(pipe); | |
2586 | temp = I915_READ(reg); | |
2587 | I915_WRITE(reg, temp & ~FDI_TX_ENABLE); | |
2588 | POSTING_READ(reg); | |
2589 | ||
2590 | reg = FDI_RX_CTL(pipe); | |
2591 | temp = I915_READ(reg); | |
2592 | temp &= ~(0x7 << 16); | |
2593 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; | |
2594 | I915_WRITE(reg, temp & ~FDI_RX_ENABLE); | |
2595 | ||
2596 | POSTING_READ(reg); | |
2597 | udelay(100); | |
2598 | ||
2599 | /* Ironlake workaround, disable clock pointer after downing FDI */ | |
6f06ce18 JB |
2600 | if (HAS_PCH_IBX(dev)) { |
2601 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); | |
0fc932b8 JB |
2602 | I915_WRITE(FDI_RX_CHICKEN(pipe), |
2603 | I915_READ(FDI_RX_CHICKEN(pipe) & | |
6f06ce18 | 2604 | ~FDI_RX_PHASE_SYNC_POINTER_EN)); |
291427f5 JB |
2605 | } else if (HAS_PCH_CPT(dev)) { |
2606 | cpt_phase_pointer_disable(dev, pipe); | |
6f06ce18 | 2607 | } |
0fc932b8 JB |
2608 | |
2609 | /* still set train pattern 1 */ | |
2610 | reg = FDI_TX_CTL(pipe); | |
2611 | temp = I915_READ(reg); | |
2612 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2613 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2614 | I915_WRITE(reg, temp); | |
2615 | ||
2616 | reg = FDI_RX_CTL(pipe); | |
2617 | temp = I915_READ(reg); | |
2618 | if (HAS_PCH_CPT(dev)) { | |
2619 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2620 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
2621 | } else { | |
2622 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2623 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2624 | } | |
2625 | /* BPC in FDI rx is consistent with that in PIPECONF */ | |
2626 | temp &= ~(0x07 << 16); | |
2627 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; | |
2628 | I915_WRITE(reg, temp); | |
2629 | ||
2630 | POSTING_READ(reg); | |
2631 | udelay(100); | |
2632 | } | |
2633 | ||
e6c3a2a6 CW |
2634 | static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc) |
2635 | { | |
0f91128d | 2636 | struct drm_device *dev = crtc->dev; |
e6c3a2a6 CW |
2637 | |
2638 | if (crtc->fb == NULL) | |
2639 | return; | |
2640 | ||
0f91128d CW |
2641 | mutex_lock(&dev->struct_mutex); |
2642 | intel_finish_fb(crtc->fb); | |
2643 | mutex_unlock(&dev->struct_mutex); | |
e6c3a2a6 CW |
2644 | } |
2645 | ||
040484af JB |
2646 | static bool intel_crtc_driving_pch(struct drm_crtc *crtc) |
2647 | { | |
2648 | struct drm_device *dev = crtc->dev; | |
2649 | struct drm_mode_config *mode_config = &dev->mode_config; | |
2650 | struct intel_encoder *encoder; | |
2651 | ||
2652 | /* | |
2653 | * If there's a non-PCH eDP on this crtc, it must be DP_A, and that | |
2654 | * must be driven by its own crtc; no sharing is possible. | |
2655 | */ | |
2656 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) { | |
2657 | if (encoder->base.crtc != crtc) | |
2658 | continue; | |
2659 | ||
6ee8bab0 ED |
2660 | /* On Haswell, LPT PCH handles the VGA connection via FDI, and Haswell |
2661 | * CPU handles all others */ | |
2662 | if (IS_HASWELL(dev)) { | |
2663 | /* It is still unclear how this will work on PPT, so throw up a warning */ | |
2664 | WARN_ON(!HAS_PCH_LPT(dev)); | |
2665 | ||
2666 | if (encoder->type == DRM_MODE_ENCODER_DAC) { | |
2667 | DRM_DEBUG_KMS("Haswell detected DAC encoder, assuming is PCH\n"); | |
2668 | return true; | |
2669 | } else { | |
2670 | DRM_DEBUG_KMS("Haswell detected encoder %d, assuming is CPU\n", | |
2671 | encoder->type); | |
2672 | return false; | |
2673 | } | |
2674 | } | |
2675 | ||
040484af JB |
2676 | switch (encoder->type) { |
2677 | case INTEL_OUTPUT_EDP: | |
2678 | if (!intel_encoder_is_pch_edp(&encoder->base)) | |
2679 | return false; | |
2680 | continue; | |
2681 | } | |
2682 | } | |
2683 | ||
2684 | return true; | |
2685 | } | |
2686 | ||
e615efe4 ED |
2687 | /* Program iCLKIP clock to the desired frequency */ |
2688 | static void lpt_program_iclkip(struct drm_crtc *crtc) | |
2689 | { | |
2690 | struct drm_device *dev = crtc->dev; | |
2691 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2692 | u32 divsel, phaseinc, auxdiv, phasedir = 0; | |
2693 | u32 temp; | |
2694 | ||
2695 | /* It is necessary to ungate the pixclk gate prior to programming | |
2696 | * the divisors, and gate it back when it is done. | |
2697 | */ | |
2698 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE); | |
2699 | ||
2700 | /* Disable SSCCTL */ | |
2701 | intel_sbi_write(dev_priv, SBI_SSCCTL6, | |
2702 | intel_sbi_read(dev_priv, SBI_SSCCTL6) | | |
2703 | SBI_SSCCTL_DISABLE); | |
2704 | ||
2705 | /* 20MHz is a corner case which is out of range for the 7-bit divisor */ | |
2706 | if (crtc->mode.clock == 20000) { | |
2707 | auxdiv = 1; | |
2708 | divsel = 0x41; | |
2709 | phaseinc = 0x20; | |
2710 | } else { | |
2711 | /* The iCLK virtual clock root frequency is in MHz, | |
2712 | * but the crtc->mode.clock in in KHz. To get the divisors, | |
2713 | * it is necessary to divide one by another, so we | |
2714 | * convert the virtual clock precision to KHz here for higher | |
2715 | * precision. | |
2716 | */ | |
2717 | u32 iclk_virtual_root_freq = 172800 * 1000; | |
2718 | u32 iclk_pi_range = 64; | |
2719 | u32 desired_divisor, msb_divisor_value, pi_value; | |
2720 | ||
2721 | desired_divisor = (iclk_virtual_root_freq / crtc->mode.clock); | |
2722 | msb_divisor_value = desired_divisor / iclk_pi_range; | |
2723 | pi_value = desired_divisor % iclk_pi_range; | |
2724 | ||
2725 | auxdiv = 0; | |
2726 | divsel = msb_divisor_value - 2; | |
2727 | phaseinc = pi_value; | |
2728 | } | |
2729 | ||
2730 | /* This should not happen with any sane values */ | |
2731 | WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) & | |
2732 | ~SBI_SSCDIVINTPHASE_DIVSEL_MASK); | |
2733 | WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) & | |
2734 | ~SBI_SSCDIVINTPHASE_INCVAL_MASK); | |
2735 | ||
2736 | DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n", | |
2737 | crtc->mode.clock, | |
2738 | auxdiv, | |
2739 | divsel, | |
2740 | phasedir, | |
2741 | phaseinc); | |
2742 | ||
2743 | /* Program SSCDIVINTPHASE6 */ | |
2744 | temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6); | |
2745 | temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK; | |
2746 | temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel); | |
2747 | temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK; | |
2748 | temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc); | |
2749 | temp |= SBI_SSCDIVINTPHASE_DIR(phasedir); | |
2750 | temp |= SBI_SSCDIVINTPHASE_PROPAGATE; | |
2751 | ||
2752 | intel_sbi_write(dev_priv, | |
2753 | SBI_SSCDIVINTPHASE6, | |
2754 | temp); | |
2755 | ||
2756 | /* Program SSCAUXDIV */ | |
2757 | temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6); | |
2758 | temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1); | |
2759 | temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv); | |
2760 | intel_sbi_write(dev_priv, | |
2761 | SBI_SSCAUXDIV6, | |
2762 | temp); | |
2763 | ||
2764 | ||
2765 | /* Enable modulator and associated divider */ | |
2766 | temp = intel_sbi_read(dev_priv, SBI_SSCCTL6); | |
2767 | temp &= ~SBI_SSCCTL_DISABLE; | |
2768 | intel_sbi_write(dev_priv, | |
2769 | SBI_SSCCTL6, | |
2770 | temp); | |
2771 | ||
2772 | /* Wait for initialization time */ | |
2773 | udelay(24); | |
2774 | ||
2775 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE); | |
2776 | } | |
2777 | ||
f67a559d JB |
2778 | /* |
2779 | * Enable PCH resources required for PCH ports: | |
2780 | * - PCH PLLs | |
2781 | * - FDI training & RX/TX | |
2782 | * - update transcoder timings | |
2783 | * - DP transcoding bits | |
2784 | * - transcoder | |
2785 | */ | |
2786 | static void ironlake_pch_enable(struct drm_crtc *crtc) | |
0e23b99d JB |
2787 | { |
2788 | struct drm_device *dev = crtc->dev; | |
2789 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2790 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2791 | int pipe = intel_crtc->pipe; | |
ee7b9f93 | 2792 | u32 reg, temp; |
2c07245f | 2793 | |
e7e164db CW |
2794 | assert_transcoder_disabled(dev_priv, pipe); |
2795 | ||
c98e9dcf | 2796 | /* For PCH output, training FDI link */ |
674cf967 | 2797 | dev_priv->display.fdi_link_train(crtc); |
2c07245f | 2798 | |
6f13b7b5 CW |
2799 | intel_enable_pch_pll(intel_crtc); |
2800 | ||
e615efe4 ED |
2801 | if (HAS_PCH_LPT(dev)) { |
2802 | DRM_DEBUG_KMS("LPT detected: programming iCLKIP\n"); | |
2803 | lpt_program_iclkip(crtc); | |
2804 | } else if (HAS_PCH_CPT(dev)) { | |
ee7b9f93 | 2805 | u32 sel; |
4b645f14 | 2806 | |
c98e9dcf | 2807 | temp = I915_READ(PCH_DPLL_SEL); |
ee7b9f93 JB |
2808 | switch (pipe) { |
2809 | default: | |
2810 | case 0: | |
2811 | temp |= TRANSA_DPLL_ENABLE; | |
2812 | sel = TRANSA_DPLLB_SEL; | |
2813 | break; | |
2814 | case 1: | |
2815 | temp |= TRANSB_DPLL_ENABLE; | |
2816 | sel = TRANSB_DPLLB_SEL; | |
2817 | break; | |
2818 | case 2: | |
2819 | temp |= TRANSC_DPLL_ENABLE; | |
2820 | sel = TRANSC_DPLLB_SEL; | |
2821 | break; | |
d64311ab | 2822 | } |
ee7b9f93 JB |
2823 | if (intel_crtc->pch_pll->pll_reg == _PCH_DPLL_B) |
2824 | temp |= sel; | |
2825 | else | |
2826 | temp &= ~sel; | |
c98e9dcf | 2827 | I915_WRITE(PCH_DPLL_SEL, temp); |
c98e9dcf | 2828 | } |
5eddb70b | 2829 | |
d9b6cb56 JB |
2830 | /* set transcoder timing, panel must allow it */ |
2831 | assert_panel_unlocked(dev_priv, pipe); | |
5eddb70b CW |
2832 | I915_WRITE(TRANS_HTOTAL(pipe), I915_READ(HTOTAL(pipe))); |
2833 | I915_WRITE(TRANS_HBLANK(pipe), I915_READ(HBLANK(pipe))); | |
2834 | I915_WRITE(TRANS_HSYNC(pipe), I915_READ(HSYNC(pipe))); | |
8db9d77b | 2835 | |
5eddb70b CW |
2836 | I915_WRITE(TRANS_VTOTAL(pipe), I915_READ(VTOTAL(pipe))); |
2837 | I915_WRITE(TRANS_VBLANK(pipe), I915_READ(VBLANK(pipe))); | |
2838 | I915_WRITE(TRANS_VSYNC(pipe), I915_READ(VSYNC(pipe))); | |
0529a0d9 | 2839 | I915_WRITE(TRANS_VSYNCSHIFT(pipe), I915_READ(VSYNCSHIFT(pipe))); |
8db9d77b | 2840 | |
f57e1e3a ED |
2841 | if (!IS_HASWELL(dev)) |
2842 | intel_fdi_normal_train(crtc); | |
5e84e1a4 | 2843 | |
c98e9dcf JB |
2844 | /* For PCH DP, enable TRANS_DP_CTL */ |
2845 | if (HAS_PCH_CPT(dev) && | |
417e822d KP |
2846 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || |
2847 | intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) { | |
9325c9f0 | 2848 | u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) >> 5; |
5eddb70b CW |
2849 | reg = TRANS_DP_CTL(pipe); |
2850 | temp = I915_READ(reg); | |
2851 | temp &= ~(TRANS_DP_PORT_SEL_MASK | | |
220cad3c EA |
2852 | TRANS_DP_SYNC_MASK | |
2853 | TRANS_DP_BPC_MASK); | |
5eddb70b CW |
2854 | temp |= (TRANS_DP_OUTPUT_ENABLE | |
2855 | TRANS_DP_ENH_FRAMING); | |
9325c9f0 | 2856 | temp |= bpc << 9; /* same format but at 11:9 */ |
c98e9dcf JB |
2857 | |
2858 | if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) | |
5eddb70b | 2859 | temp |= TRANS_DP_HSYNC_ACTIVE_HIGH; |
c98e9dcf | 2860 | if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC) |
5eddb70b | 2861 | temp |= TRANS_DP_VSYNC_ACTIVE_HIGH; |
c98e9dcf JB |
2862 | |
2863 | switch (intel_trans_dp_port_sel(crtc)) { | |
2864 | case PCH_DP_B: | |
5eddb70b | 2865 | temp |= TRANS_DP_PORT_SEL_B; |
c98e9dcf JB |
2866 | break; |
2867 | case PCH_DP_C: | |
5eddb70b | 2868 | temp |= TRANS_DP_PORT_SEL_C; |
c98e9dcf JB |
2869 | break; |
2870 | case PCH_DP_D: | |
5eddb70b | 2871 | temp |= TRANS_DP_PORT_SEL_D; |
c98e9dcf JB |
2872 | break; |
2873 | default: | |
2874 | DRM_DEBUG_KMS("Wrong PCH DP port return. Guess port B\n"); | |
5eddb70b | 2875 | temp |= TRANS_DP_PORT_SEL_B; |
c98e9dcf | 2876 | break; |
32f9d658 | 2877 | } |
2c07245f | 2878 | |
5eddb70b | 2879 | I915_WRITE(reg, temp); |
6be4a607 | 2880 | } |
b52eb4dc | 2881 | |
040484af | 2882 | intel_enable_transcoder(dev_priv, pipe); |
f67a559d JB |
2883 | } |
2884 | ||
ee7b9f93 JB |
2885 | static void intel_put_pch_pll(struct intel_crtc *intel_crtc) |
2886 | { | |
2887 | struct intel_pch_pll *pll = intel_crtc->pch_pll; | |
2888 | ||
2889 | if (pll == NULL) | |
2890 | return; | |
2891 | ||
2892 | if (pll->refcount == 0) { | |
2893 | WARN(1, "bad PCH PLL refcount\n"); | |
2894 | return; | |
2895 | } | |
2896 | ||
2897 | --pll->refcount; | |
2898 | intel_crtc->pch_pll = NULL; | |
2899 | } | |
2900 | ||
2901 | static struct intel_pch_pll *intel_get_pch_pll(struct intel_crtc *intel_crtc, u32 dpll, u32 fp) | |
2902 | { | |
2903 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; | |
2904 | struct intel_pch_pll *pll; | |
2905 | int i; | |
2906 | ||
2907 | pll = intel_crtc->pch_pll; | |
2908 | if (pll) { | |
2909 | DRM_DEBUG_KMS("CRTC:%d reusing existing PCH PLL %x\n", | |
2910 | intel_crtc->base.base.id, pll->pll_reg); | |
2911 | goto prepare; | |
2912 | } | |
2913 | ||
2914 | for (i = 0; i < dev_priv->num_pch_pll; i++) { | |
2915 | pll = &dev_priv->pch_plls[i]; | |
2916 | ||
2917 | /* Only want to check enabled timings first */ | |
2918 | if (pll->refcount == 0) | |
2919 | continue; | |
2920 | ||
2921 | if (dpll == (I915_READ(pll->pll_reg) & 0x7fffffff) && | |
2922 | fp == I915_READ(pll->fp0_reg)) { | |
2923 | DRM_DEBUG_KMS("CRTC:%d sharing existing PCH PLL %x (refcount %d, ative %d)\n", | |
2924 | intel_crtc->base.base.id, | |
2925 | pll->pll_reg, pll->refcount, pll->active); | |
2926 | ||
2927 | goto found; | |
2928 | } | |
2929 | } | |
2930 | ||
2931 | /* Ok no matching timings, maybe there's a free one? */ | |
2932 | for (i = 0; i < dev_priv->num_pch_pll; i++) { | |
2933 | pll = &dev_priv->pch_plls[i]; | |
2934 | if (pll->refcount == 0) { | |
2935 | DRM_DEBUG_KMS("CRTC:%d allocated PCH PLL %x\n", | |
2936 | intel_crtc->base.base.id, pll->pll_reg); | |
2937 | goto found; | |
2938 | } | |
2939 | } | |
2940 | ||
2941 | return NULL; | |
2942 | ||
2943 | found: | |
2944 | intel_crtc->pch_pll = pll; | |
2945 | pll->refcount++; | |
2946 | DRM_DEBUG_DRIVER("using pll %d for pipe %d\n", i, intel_crtc->pipe); | |
2947 | prepare: /* separate function? */ | |
2948 | DRM_DEBUG_DRIVER("switching PLL %x off\n", pll->pll_reg); | |
ee7b9f93 | 2949 | |
e04c7350 CW |
2950 | /* Wait for the clocks to stabilize before rewriting the regs */ |
2951 | I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE); | |
ee7b9f93 JB |
2952 | POSTING_READ(pll->pll_reg); |
2953 | udelay(150); | |
e04c7350 CW |
2954 | |
2955 | I915_WRITE(pll->fp0_reg, fp); | |
2956 | I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE); | |
ee7b9f93 JB |
2957 | pll->on = false; |
2958 | return pll; | |
2959 | } | |
2960 | ||
d4270e57 JB |
2961 | void intel_cpt_verify_modeset(struct drm_device *dev, int pipe) |
2962 | { | |
2963 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2964 | int dslreg = PIPEDSL(pipe), tc2reg = TRANS_CHICKEN2(pipe); | |
2965 | u32 temp; | |
2966 | ||
2967 | temp = I915_READ(dslreg); | |
2968 | udelay(500); | |
2969 | if (wait_for(I915_READ(dslreg) != temp, 5)) { | |
2970 | /* Without this, mode sets may fail silently on FDI */ | |
2971 | I915_WRITE(tc2reg, TRANS_AUTOTRAIN_GEN_STALL_DIS); | |
2972 | udelay(250); | |
2973 | I915_WRITE(tc2reg, 0); | |
2974 | if (wait_for(I915_READ(dslreg) != temp, 5)) | |
2975 | DRM_ERROR("mode set failed: pipe %d stuck\n", pipe); | |
2976 | } | |
2977 | } | |
2978 | ||
f67a559d JB |
2979 | static void ironlake_crtc_enable(struct drm_crtc *crtc) |
2980 | { | |
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; | |
2985 | int plane = intel_crtc->plane; | |
2986 | u32 temp; | |
2987 | bool is_pch_port; | |
2988 | ||
2989 | if (intel_crtc->active) | |
2990 | return; | |
2991 | ||
2992 | intel_crtc->active = true; | |
2993 | intel_update_watermarks(dev); | |
2994 | ||
2995 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
2996 | temp = I915_READ(PCH_LVDS); | |
2997 | if ((temp & LVDS_PORT_EN) == 0) | |
2998 | I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN); | |
2999 | } | |
3000 | ||
3001 | is_pch_port = intel_crtc_driving_pch(crtc); | |
3002 | ||
3003 | if (is_pch_port) | |
357555c0 | 3004 | ironlake_fdi_pll_enable(crtc); |
f67a559d JB |
3005 | else |
3006 | ironlake_fdi_disable(crtc); | |
3007 | ||
3008 | /* Enable panel fitting for LVDS */ | |
3009 | if (dev_priv->pch_pf_size && | |
3010 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) || HAS_eDP)) { | |
3011 | /* Force use of hard-coded filter coefficients | |
3012 | * as some pre-programmed values are broken, | |
3013 | * e.g. x201. | |
3014 | */ | |
9db4a9c7 JB |
3015 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3); |
3016 | I915_WRITE(PF_WIN_POS(pipe), dev_priv->pch_pf_pos); | |
3017 | I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size); | |
f67a559d JB |
3018 | } |
3019 | ||
9c54c0dd JB |
3020 | /* |
3021 | * On ILK+ LUT must be loaded before the pipe is running but with | |
3022 | * clocks enabled | |
3023 | */ | |
3024 | intel_crtc_load_lut(crtc); | |
3025 | ||
f67a559d JB |
3026 | intel_enable_pipe(dev_priv, pipe, is_pch_port); |
3027 | intel_enable_plane(dev_priv, plane, pipe); | |
3028 | ||
3029 | if (is_pch_port) | |
3030 | ironlake_pch_enable(crtc); | |
c98e9dcf | 3031 | |
d1ebd816 | 3032 | mutex_lock(&dev->struct_mutex); |
bed4a673 | 3033 | intel_update_fbc(dev); |
d1ebd816 BW |
3034 | mutex_unlock(&dev->struct_mutex); |
3035 | ||
6b383a7f | 3036 | intel_crtc_update_cursor(crtc, true); |
6be4a607 JB |
3037 | } |
3038 | ||
3039 | static void ironlake_crtc_disable(struct drm_crtc *crtc) | |
3040 | { | |
3041 | struct drm_device *dev = crtc->dev; | |
3042 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3043 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3044 | int pipe = intel_crtc->pipe; | |
3045 | int plane = intel_crtc->plane; | |
5eddb70b | 3046 | u32 reg, temp; |
b52eb4dc | 3047 | |
f7abfe8b CW |
3048 | if (!intel_crtc->active) |
3049 | return; | |
3050 | ||
e6c3a2a6 | 3051 | intel_crtc_wait_for_pending_flips(crtc); |
6be4a607 | 3052 | drm_vblank_off(dev, pipe); |
6b383a7f | 3053 | intel_crtc_update_cursor(crtc, false); |
5eddb70b | 3054 | |
b24e7179 | 3055 | intel_disable_plane(dev_priv, plane, pipe); |
913d8d11 | 3056 | |
973d04f9 CW |
3057 | if (dev_priv->cfb_plane == plane) |
3058 | intel_disable_fbc(dev); | |
2c07245f | 3059 | |
b24e7179 | 3060 | intel_disable_pipe(dev_priv, pipe); |
32f9d658 | 3061 | |
6be4a607 | 3062 | /* Disable PF */ |
9db4a9c7 JB |
3063 | I915_WRITE(PF_CTL(pipe), 0); |
3064 | I915_WRITE(PF_WIN_SZ(pipe), 0); | |
2c07245f | 3065 | |
0fc932b8 | 3066 | ironlake_fdi_disable(crtc); |
2c07245f | 3067 | |
47a05eca JB |
3068 | /* This is a horrible layering violation; we should be doing this in |
3069 | * the connector/encoder ->prepare instead, but we don't always have | |
3070 | * enough information there about the config to know whether it will | |
3071 | * actually be necessary or just cause undesired flicker. | |
3072 | */ | |
3073 | intel_disable_pch_ports(dev_priv, pipe); | |
249c0e64 | 3074 | |
040484af | 3075 | intel_disable_transcoder(dev_priv, pipe); |
913d8d11 | 3076 | |
6be4a607 JB |
3077 | if (HAS_PCH_CPT(dev)) { |
3078 | /* disable TRANS_DP_CTL */ | |
5eddb70b CW |
3079 | reg = TRANS_DP_CTL(pipe); |
3080 | temp = I915_READ(reg); | |
3081 | temp &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK); | |
cb3543c6 | 3082 | temp |= TRANS_DP_PORT_SEL_NONE; |
5eddb70b | 3083 | I915_WRITE(reg, temp); |
6be4a607 JB |
3084 | |
3085 | /* disable DPLL_SEL */ | |
3086 | temp = I915_READ(PCH_DPLL_SEL); | |
9db4a9c7 JB |
3087 | switch (pipe) { |
3088 | case 0: | |
d64311ab | 3089 | temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL); |
9db4a9c7 JB |
3090 | break; |
3091 | case 1: | |
6be4a607 | 3092 | temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); |
9db4a9c7 JB |
3093 | break; |
3094 | case 2: | |
4b645f14 | 3095 | /* C shares PLL A or B */ |
d64311ab | 3096 | temp &= ~(TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL); |
9db4a9c7 JB |
3097 | break; |
3098 | default: | |
3099 | BUG(); /* wtf */ | |
3100 | } | |
6be4a607 | 3101 | I915_WRITE(PCH_DPLL_SEL, temp); |
6be4a607 | 3102 | } |
e3421a18 | 3103 | |
6be4a607 | 3104 | /* disable PCH DPLL */ |
ee7b9f93 | 3105 | intel_disable_pch_pll(intel_crtc); |
8db9d77b | 3106 | |
6be4a607 | 3107 | /* Switch from PCDclk to Rawclk */ |
5eddb70b CW |
3108 | reg = FDI_RX_CTL(pipe); |
3109 | temp = I915_READ(reg); | |
3110 | I915_WRITE(reg, temp & ~FDI_PCDCLK); | |
8db9d77b | 3111 | |
6be4a607 | 3112 | /* Disable CPU FDI TX PLL */ |
5eddb70b CW |
3113 | reg = FDI_TX_CTL(pipe); |
3114 | temp = I915_READ(reg); | |
3115 | I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE); | |
3116 | ||
3117 | POSTING_READ(reg); | |
6be4a607 | 3118 | udelay(100); |
8db9d77b | 3119 | |
5eddb70b CW |
3120 | reg = FDI_RX_CTL(pipe); |
3121 | temp = I915_READ(reg); | |
3122 | I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE); | |
2c07245f | 3123 | |
6be4a607 | 3124 | /* Wait for the clocks to turn off. */ |
5eddb70b | 3125 | POSTING_READ(reg); |
6be4a607 | 3126 | udelay(100); |
6b383a7f | 3127 | |
f7abfe8b | 3128 | intel_crtc->active = false; |
6b383a7f | 3129 | intel_update_watermarks(dev); |
d1ebd816 BW |
3130 | |
3131 | mutex_lock(&dev->struct_mutex); | |
6b383a7f | 3132 | intel_update_fbc(dev); |
d1ebd816 | 3133 | mutex_unlock(&dev->struct_mutex); |
6be4a607 | 3134 | } |
1b3c7a47 | 3135 | |
6be4a607 JB |
3136 | static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) |
3137 | { | |
3138 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3139 | int pipe = intel_crtc->pipe; | |
3140 | int plane = intel_crtc->plane; | |
8db9d77b | 3141 | |
6be4a607 JB |
3142 | /* XXX: When our outputs are all unaware of DPMS modes other than off |
3143 | * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC. | |
3144 | */ | |
3145 | switch (mode) { | |
3146 | case DRM_MODE_DPMS_ON: | |
3147 | case DRM_MODE_DPMS_STANDBY: | |
3148 | case DRM_MODE_DPMS_SUSPEND: | |
3149 | DRM_DEBUG_KMS("crtc %d/%d dpms on\n", pipe, plane); | |
3150 | ironlake_crtc_enable(crtc); | |
3151 | break; | |
1b3c7a47 | 3152 | |
6be4a607 JB |
3153 | case DRM_MODE_DPMS_OFF: |
3154 | DRM_DEBUG_KMS("crtc %d/%d dpms off\n", pipe, plane); | |
3155 | ironlake_crtc_disable(crtc); | |
2c07245f ZW |
3156 | break; |
3157 | } | |
3158 | } | |
3159 | ||
ee7b9f93 JB |
3160 | static void ironlake_crtc_off(struct drm_crtc *crtc) |
3161 | { | |
3162 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3163 | intel_put_pch_pll(intel_crtc); | |
3164 | } | |
3165 | ||
02e792fb DV |
3166 | static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable) |
3167 | { | |
02e792fb | 3168 | if (!enable && intel_crtc->overlay) { |
23f09ce3 | 3169 | struct drm_device *dev = intel_crtc->base.dev; |
ce453d81 | 3170 | struct drm_i915_private *dev_priv = dev->dev_private; |
03f77ea5 | 3171 | |
23f09ce3 | 3172 | mutex_lock(&dev->struct_mutex); |
ce453d81 CW |
3173 | dev_priv->mm.interruptible = false; |
3174 | (void) intel_overlay_switch_off(intel_crtc->overlay); | |
3175 | dev_priv->mm.interruptible = true; | |
23f09ce3 | 3176 | mutex_unlock(&dev->struct_mutex); |
02e792fb | 3177 | } |
02e792fb | 3178 | |
5dcdbcb0 CW |
3179 | /* Let userspace switch the overlay on again. In most cases userspace |
3180 | * has to recompute where to put it anyway. | |
3181 | */ | |
02e792fb DV |
3182 | } |
3183 | ||
0b8765c6 | 3184 | static void i9xx_crtc_enable(struct drm_crtc *crtc) |
79e53945 JB |
3185 | { |
3186 | struct drm_device *dev = crtc->dev; | |
79e53945 JB |
3187 | struct drm_i915_private *dev_priv = dev->dev_private; |
3188 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3189 | int pipe = intel_crtc->pipe; | |
80824003 | 3190 | int plane = intel_crtc->plane; |
79e53945 | 3191 | |
f7abfe8b CW |
3192 | if (intel_crtc->active) |
3193 | return; | |
3194 | ||
3195 | intel_crtc->active = true; | |
6b383a7f CW |
3196 | intel_update_watermarks(dev); |
3197 | ||
63d7bbe9 | 3198 | intel_enable_pll(dev_priv, pipe); |
040484af | 3199 | intel_enable_pipe(dev_priv, pipe, false); |
b24e7179 | 3200 | intel_enable_plane(dev_priv, plane, pipe); |
79e53945 | 3201 | |
0b8765c6 | 3202 | intel_crtc_load_lut(crtc); |
bed4a673 | 3203 | intel_update_fbc(dev); |
79e53945 | 3204 | |
0b8765c6 JB |
3205 | /* Give the overlay scaler a chance to enable if it's on this pipe */ |
3206 | intel_crtc_dpms_overlay(intel_crtc, true); | |
6b383a7f | 3207 | intel_crtc_update_cursor(crtc, true); |
0b8765c6 | 3208 | } |
79e53945 | 3209 | |
0b8765c6 JB |
3210 | static void i9xx_crtc_disable(struct drm_crtc *crtc) |
3211 | { | |
3212 | struct drm_device *dev = crtc->dev; | |
3213 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3214 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3215 | int pipe = intel_crtc->pipe; | |
3216 | int plane = intel_crtc->plane; | |
b690e96c | 3217 | |
f7abfe8b CW |
3218 | if (!intel_crtc->active) |
3219 | return; | |
3220 | ||
0b8765c6 | 3221 | /* Give the overlay scaler a chance to disable if it's on this pipe */ |
e6c3a2a6 CW |
3222 | intel_crtc_wait_for_pending_flips(crtc); |
3223 | drm_vblank_off(dev, pipe); | |
0b8765c6 | 3224 | intel_crtc_dpms_overlay(intel_crtc, false); |
6b383a7f | 3225 | intel_crtc_update_cursor(crtc, false); |
0b8765c6 | 3226 | |
973d04f9 CW |
3227 | if (dev_priv->cfb_plane == plane) |
3228 | intel_disable_fbc(dev); | |
79e53945 | 3229 | |
b24e7179 | 3230 | intel_disable_plane(dev_priv, plane, pipe); |
b24e7179 | 3231 | intel_disable_pipe(dev_priv, pipe); |
63d7bbe9 | 3232 | intel_disable_pll(dev_priv, pipe); |
0b8765c6 | 3233 | |
f7abfe8b | 3234 | intel_crtc->active = false; |
6b383a7f CW |
3235 | intel_update_fbc(dev); |
3236 | intel_update_watermarks(dev); | |
0b8765c6 JB |
3237 | } |
3238 | ||
3239 | static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode) | |
3240 | { | |
3241 | /* XXX: When our outputs are all unaware of DPMS modes other than off | |
3242 | * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC. | |
3243 | */ | |
3244 | switch (mode) { | |
3245 | case DRM_MODE_DPMS_ON: | |
3246 | case DRM_MODE_DPMS_STANDBY: | |
3247 | case DRM_MODE_DPMS_SUSPEND: | |
3248 | i9xx_crtc_enable(crtc); | |
3249 | break; | |
3250 | case DRM_MODE_DPMS_OFF: | |
3251 | i9xx_crtc_disable(crtc); | |
79e53945 JB |
3252 | break; |
3253 | } | |
2c07245f ZW |
3254 | } |
3255 | ||
ee7b9f93 JB |
3256 | static void i9xx_crtc_off(struct drm_crtc *crtc) |
3257 | { | |
3258 | } | |
3259 | ||
2c07245f ZW |
3260 | /** |
3261 | * Sets the power management mode of the pipe and plane. | |
2c07245f ZW |
3262 | */ |
3263 | static void intel_crtc_dpms(struct drm_crtc *crtc, int mode) | |
3264 | { | |
3265 | struct drm_device *dev = crtc->dev; | |
e70236a8 | 3266 | struct drm_i915_private *dev_priv = dev->dev_private; |
2c07245f ZW |
3267 | struct drm_i915_master_private *master_priv; |
3268 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3269 | int pipe = intel_crtc->pipe; | |
3270 | bool enabled; | |
3271 | ||
032d2a0d CW |
3272 | if (intel_crtc->dpms_mode == mode) |
3273 | return; | |
3274 | ||
65655d4a | 3275 | intel_crtc->dpms_mode = mode; |
debcaddc | 3276 | |
e70236a8 | 3277 | dev_priv->display.dpms(crtc, mode); |
79e53945 JB |
3278 | |
3279 | if (!dev->primary->master) | |
3280 | return; | |
3281 | ||
3282 | master_priv = dev->primary->master->driver_priv; | |
3283 | if (!master_priv->sarea_priv) | |
3284 | return; | |
3285 | ||
3286 | enabled = crtc->enabled && mode != DRM_MODE_DPMS_OFF; | |
3287 | ||
3288 | switch (pipe) { | |
3289 | case 0: | |
3290 | master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0; | |
3291 | master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0; | |
3292 | break; | |
3293 | case 1: | |
3294 | master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0; | |
3295 | master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0; | |
3296 | break; | |
3297 | default: | |
9db4a9c7 | 3298 | DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe)); |
79e53945 JB |
3299 | break; |
3300 | } | |
79e53945 JB |
3301 | } |
3302 | ||
cdd59983 CW |
3303 | static void intel_crtc_disable(struct drm_crtc *crtc) |
3304 | { | |
3305 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
3306 | struct drm_device *dev = crtc->dev; | |
ee7b9f93 | 3307 | struct drm_i915_private *dev_priv = dev->dev_private; |
cdd59983 CW |
3308 | |
3309 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF); | |
ee7b9f93 JB |
3310 | dev_priv->display.off(crtc); |
3311 | ||
931872fc CW |
3312 | assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane); |
3313 | assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe); | |
cdd59983 CW |
3314 | |
3315 | if (crtc->fb) { | |
3316 | mutex_lock(&dev->struct_mutex); | |
1690e1eb | 3317 | intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj); |
cdd59983 CW |
3318 | mutex_unlock(&dev->struct_mutex); |
3319 | } | |
3320 | } | |
3321 | ||
7e7d76c3 JB |
3322 | /* Prepare for a mode set. |
3323 | * | |
3324 | * Note we could be a lot smarter here. We need to figure out which outputs | |
3325 | * will be enabled, which disabled (in short, how the config will changes) | |
3326 | * and perform the minimum necessary steps to accomplish that, e.g. updating | |
3327 | * watermarks, FBC configuration, making sure PLLs are programmed correctly, | |
3328 | * panel fitting is in the proper state, etc. | |
3329 | */ | |
3330 | static void i9xx_crtc_prepare(struct drm_crtc *crtc) | |
79e53945 | 3331 | { |
7e7d76c3 | 3332 | i9xx_crtc_disable(crtc); |
79e53945 JB |
3333 | } |
3334 | ||
7e7d76c3 | 3335 | static void i9xx_crtc_commit(struct drm_crtc *crtc) |
79e53945 | 3336 | { |
7e7d76c3 | 3337 | i9xx_crtc_enable(crtc); |
7e7d76c3 JB |
3338 | } |
3339 | ||
3340 | static void ironlake_crtc_prepare(struct drm_crtc *crtc) | |
3341 | { | |
7e7d76c3 | 3342 | ironlake_crtc_disable(crtc); |
7e7d76c3 JB |
3343 | } |
3344 | ||
3345 | static void ironlake_crtc_commit(struct drm_crtc *crtc) | |
3346 | { | |
7e7d76c3 | 3347 | ironlake_crtc_enable(crtc); |
79e53945 JB |
3348 | } |
3349 | ||
0206e353 | 3350 | void intel_encoder_prepare(struct drm_encoder *encoder) |
79e53945 JB |
3351 | { |
3352 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
3353 | /* lvds has its own version of prepare see intel_lvds_prepare */ | |
3354 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_OFF); | |
3355 | } | |
3356 | ||
0206e353 | 3357 | void intel_encoder_commit(struct drm_encoder *encoder) |
79e53945 JB |
3358 | { |
3359 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
d4270e57 | 3360 | struct drm_device *dev = encoder->dev; |
d47d7cb8 | 3361 | struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc); |
d4270e57 | 3362 | |
79e53945 JB |
3363 | /* lvds has its own version of commit see intel_lvds_commit */ |
3364 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); | |
d4270e57 JB |
3365 | |
3366 | if (HAS_PCH_CPT(dev)) | |
3367 | intel_cpt_verify_modeset(dev, intel_crtc->pipe); | |
79e53945 JB |
3368 | } |
3369 | ||
ea5b213a CW |
3370 | void intel_encoder_destroy(struct drm_encoder *encoder) |
3371 | { | |
4ef69c7a | 3372 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); |
ea5b213a | 3373 | |
ea5b213a CW |
3374 | drm_encoder_cleanup(encoder); |
3375 | kfree(intel_encoder); | |
3376 | } | |
3377 | ||
79e53945 JB |
3378 | static bool intel_crtc_mode_fixup(struct drm_crtc *crtc, |
3379 | struct drm_display_mode *mode, | |
3380 | struct drm_display_mode *adjusted_mode) | |
3381 | { | |
2c07245f | 3382 | struct drm_device *dev = crtc->dev; |
89749350 | 3383 | |
bad720ff | 3384 | if (HAS_PCH_SPLIT(dev)) { |
2c07245f | 3385 | /* FDI link clock is fixed at 2.7G */ |
2377b741 JB |
3386 | if (mode->clock * 3 > IRONLAKE_FDI_FREQ * 4) |
3387 | return false; | |
2c07245f | 3388 | } |
89749350 | 3389 | |
f9bef081 DV |
3390 | /* All interlaced capable intel hw wants timings in frames. Note though |
3391 | * that intel_lvds_mode_fixup does some funny tricks with the crtc | |
3392 | * timings, so we need to be careful not to clobber these.*/ | |
3393 | if (!(adjusted_mode->private_flags & INTEL_MODE_CRTC_TIMINGS_SET)) | |
3394 | drm_mode_set_crtcinfo(adjusted_mode, 0); | |
89749350 | 3395 | |
79e53945 JB |
3396 | return true; |
3397 | } | |
3398 | ||
25eb05fc JB |
3399 | static int valleyview_get_display_clock_speed(struct drm_device *dev) |
3400 | { | |
3401 | return 400000; /* FIXME */ | |
3402 | } | |
3403 | ||
e70236a8 JB |
3404 | static int i945_get_display_clock_speed(struct drm_device *dev) |
3405 | { | |
3406 | return 400000; | |
3407 | } | |
79e53945 | 3408 | |
e70236a8 | 3409 | static int i915_get_display_clock_speed(struct drm_device *dev) |
79e53945 | 3410 | { |
e70236a8 JB |
3411 | return 333000; |
3412 | } | |
79e53945 | 3413 | |
e70236a8 JB |
3414 | static int i9xx_misc_get_display_clock_speed(struct drm_device *dev) |
3415 | { | |
3416 | return 200000; | |
3417 | } | |
79e53945 | 3418 | |
e70236a8 JB |
3419 | static int i915gm_get_display_clock_speed(struct drm_device *dev) |
3420 | { | |
3421 | u16 gcfgc = 0; | |
79e53945 | 3422 | |
e70236a8 JB |
3423 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); |
3424 | ||
3425 | if (gcfgc & GC_LOW_FREQUENCY_ENABLE) | |
3426 | return 133000; | |
3427 | else { | |
3428 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
3429 | case GC_DISPLAY_CLOCK_333_MHZ: | |
3430 | return 333000; | |
3431 | default: | |
3432 | case GC_DISPLAY_CLOCK_190_200_MHZ: | |
3433 | return 190000; | |
79e53945 | 3434 | } |
e70236a8 JB |
3435 | } |
3436 | } | |
3437 | ||
3438 | static int i865_get_display_clock_speed(struct drm_device *dev) | |
3439 | { | |
3440 | return 266000; | |
3441 | } | |
3442 | ||
3443 | static int i855_get_display_clock_speed(struct drm_device *dev) | |
3444 | { | |
3445 | u16 hpllcc = 0; | |
3446 | /* Assume that the hardware is in the high speed state. This | |
3447 | * should be the default. | |
3448 | */ | |
3449 | switch (hpllcc & GC_CLOCK_CONTROL_MASK) { | |
3450 | case GC_CLOCK_133_200: | |
3451 | case GC_CLOCK_100_200: | |
3452 | return 200000; | |
3453 | case GC_CLOCK_166_250: | |
3454 | return 250000; | |
3455 | case GC_CLOCK_100_133: | |
79e53945 | 3456 | return 133000; |
e70236a8 | 3457 | } |
79e53945 | 3458 | |
e70236a8 JB |
3459 | /* Shouldn't happen */ |
3460 | return 0; | |
3461 | } | |
79e53945 | 3462 | |
e70236a8 JB |
3463 | static int i830_get_display_clock_speed(struct drm_device *dev) |
3464 | { | |
3465 | return 133000; | |
79e53945 JB |
3466 | } |
3467 | ||
2c07245f ZW |
3468 | struct fdi_m_n { |
3469 | u32 tu; | |
3470 | u32 gmch_m; | |
3471 | u32 gmch_n; | |
3472 | u32 link_m; | |
3473 | u32 link_n; | |
3474 | }; | |
3475 | ||
3476 | static void | |
3477 | fdi_reduce_ratio(u32 *num, u32 *den) | |
3478 | { | |
3479 | while (*num > 0xffffff || *den > 0xffffff) { | |
3480 | *num >>= 1; | |
3481 | *den >>= 1; | |
3482 | } | |
3483 | } | |
3484 | ||
2c07245f | 3485 | static void |
f2b115e6 AJ |
3486 | ironlake_compute_m_n(int bits_per_pixel, int nlanes, int pixel_clock, |
3487 | int link_clock, struct fdi_m_n *m_n) | |
2c07245f | 3488 | { |
2c07245f ZW |
3489 | m_n->tu = 64; /* default size */ |
3490 | ||
22ed1113 CW |
3491 | /* BUG_ON(pixel_clock > INT_MAX / 36); */ |
3492 | m_n->gmch_m = bits_per_pixel * pixel_clock; | |
3493 | m_n->gmch_n = link_clock * nlanes * 8; | |
2c07245f ZW |
3494 | fdi_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n); |
3495 | ||
22ed1113 CW |
3496 | m_n->link_m = pixel_clock; |
3497 | m_n->link_n = link_clock; | |
2c07245f ZW |
3498 | fdi_reduce_ratio(&m_n->link_m, &m_n->link_n); |
3499 | } | |
3500 | ||
a7615030 CW |
3501 | static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) |
3502 | { | |
72bbe58c KP |
3503 | if (i915_panel_use_ssc >= 0) |
3504 | return i915_panel_use_ssc != 0; | |
3505 | return dev_priv->lvds_use_ssc | |
435793df | 3506 | && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE); |
a7615030 CW |
3507 | } |
3508 | ||
5a354204 JB |
3509 | /** |
3510 | * intel_choose_pipe_bpp_dither - figure out what color depth the pipe should send | |
3511 | * @crtc: CRTC structure | |
3b5c78a3 | 3512 | * @mode: requested mode |
5a354204 JB |
3513 | * |
3514 | * A pipe may be connected to one or more outputs. Based on the depth of the | |
3515 | * attached framebuffer, choose a good color depth to use on the pipe. | |
3516 | * | |
3517 | * If possible, match the pipe depth to the fb depth. In some cases, this | |
3518 | * isn't ideal, because the connected output supports a lesser or restricted | |
3519 | * set of depths. Resolve that here: | |
3520 | * LVDS typically supports only 6bpc, so clamp down in that case | |
3521 | * HDMI supports only 8bpc or 12bpc, so clamp to 8bpc with dither for 10bpc | |
3522 | * Displays may support a restricted set as well, check EDID and clamp as | |
3523 | * appropriate. | |
3b5c78a3 | 3524 | * DP may want to dither down to 6bpc to fit larger modes |
5a354204 JB |
3525 | * |
3526 | * RETURNS: | |
3527 | * Dithering requirement (i.e. false if display bpc and pipe bpc match, | |
3528 | * true if they don't match). | |
3529 | */ | |
3530 | static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc, | |
3b5c78a3 AJ |
3531 | unsigned int *pipe_bpp, |
3532 | struct drm_display_mode *mode) | |
5a354204 JB |
3533 | { |
3534 | struct drm_device *dev = crtc->dev; | |
3535 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3536 | struct drm_encoder *encoder; | |
3537 | struct drm_connector *connector; | |
3538 | unsigned int display_bpc = UINT_MAX, bpc; | |
3539 | ||
3540 | /* Walk the encoders & connectors on this crtc, get min bpc */ | |
3541 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
3542 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); | |
3543 | ||
3544 | if (encoder->crtc != crtc) | |
3545 | continue; | |
3546 | ||
3547 | if (intel_encoder->type == INTEL_OUTPUT_LVDS) { | |
3548 | unsigned int lvds_bpc; | |
3549 | ||
3550 | if ((I915_READ(PCH_LVDS) & LVDS_A3_POWER_MASK) == | |
3551 | LVDS_A3_POWER_UP) | |
3552 | lvds_bpc = 8; | |
3553 | else | |
3554 | lvds_bpc = 6; | |
3555 | ||
3556 | if (lvds_bpc < display_bpc) { | |
82820490 | 3557 | DRM_DEBUG_KMS("clamping display bpc (was %d) to LVDS (%d)\n", display_bpc, lvds_bpc); |
5a354204 JB |
3558 | display_bpc = lvds_bpc; |
3559 | } | |
3560 | continue; | |
3561 | } | |
3562 | ||
3563 | if (intel_encoder->type == INTEL_OUTPUT_EDP) { | |
3564 | /* Use VBT settings if we have an eDP panel */ | |
3565 | unsigned int edp_bpc = dev_priv->edp.bpp / 3; | |
3566 | ||
3567 | if (edp_bpc < display_bpc) { | |
82820490 | 3568 | DRM_DEBUG_KMS("clamping display bpc (was %d) to eDP (%d)\n", display_bpc, edp_bpc); |
5a354204 JB |
3569 | display_bpc = edp_bpc; |
3570 | } | |
3571 | continue; | |
3572 | } | |
3573 | ||
3574 | /* Not one of the known troublemakers, check the EDID */ | |
3575 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
3576 | head) { | |
3577 | if (connector->encoder != encoder) | |
3578 | continue; | |
3579 | ||
62ac41a6 JB |
3580 | /* Don't use an invalid EDID bpc value */ |
3581 | if (connector->display_info.bpc && | |
3582 | connector->display_info.bpc < display_bpc) { | |
82820490 | 3583 | DRM_DEBUG_KMS("clamping display bpc (was %d) to EDID reported max of %d\n", display_bpc, connector->display_info.bpc); |
5a354204 JB |
3584 | display_bpc = connector->display_info.bpc; |
3585 | } | |
3586 | } | |
3587 | ||
3588 | /* | |
3589 | * HDMI is either 12 or 8, so if the display lets 10bpc sneak | |
3590 | * through, clamp it down. (Note: >12bpc will be caught below.) | |
3591 | */ | |
3592 | if (intel_encoder->type == INTEL_OUTPUT_HDMI) { | |
3593 | if (display_bpc > 8 && display_bpc < 12) { | |
82820490 | 3594 | DRM_DEBUG_KMS("forcing bpc to 12 for HDMI\n"); |
5a354204 JB |
3595 | display_bpc = 12; |
3596 | } else { | |
82820490 | 3597 | DRM_DEBUG_KMS("forcing bpc to 8 for HDMI\n"); |
5a354204 JB |
3598 | display_bpc = 8; |
3599 | } | |
3600 | } | |
3601 | } | |
3602 | ||
3b5c78a3 AJ |
3603 | if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) { |
3604 | DRM_DEBUG_KMS("Dithering DP to 6bpc\n"); | |
3605 | display_bpc = 6; | |
3606 | } | |
3607 | ||
5a354204 JB |
3608 | /* |
3609 | * We could just drive the pipe at the highest bpc all the time and | |
3610 | * enable dithering as needed, but that costs bandwidth. So choose | |
3611 | * the minimum value that expresses the full color range of the fb but | |
3612 | * also stays within the max display bpc discovered above. | |
3613 | */ | |
3614 | ||
3615 | switch (crtc->fb->depth) { | |
3616 | case 8: | |
3617 | bpc = 8; /* since we go through a colormap */ | |
3618 | break; | |
3619 | case 15: | |
3620 | case 16: | |
3621 | bpc = 6; /* min is 18bpp */ | |
3622 | break; | |
3623 | case 24: | |
578393cd | 3624 | bpc = 8; |
5a354204 JB |
3625 | break; |
3626 | case 30: | |
578393cd | 3627 | bpc = 10; |
5a354204 JB |
3628 | break; |
3629 | case 48: | |
578393cd | 3630 | bpc = 12; |
5a354204 JB |
3631 | break; |
3632 | default: | |
3633 | DRM_DEBUG("unsupported depth, assuming 24 bits\n"); | |
3634 | bpc = min((unsigned int)8, display_bpc); | |
3635 | break; | |
3636 | } | |
3637 | ||
578393cd KP |
3638 | display_bpc = min(display_bpc, bpc); |
3639 | ||
82820490 AJ |
3640 | DRM_DEBUG_KMS("setting pipe bpc to %d (max display bpc %d)\n", |
3641 | bpc, display_bpc); | |
5a354204 | 3642 | |
578393cd | 3643 | *pipe_bpp = display_bpc * 3; |
5a354204 JB |
3644 | |
3645 | return display_bpc != bpc; | |
3646 | } | |
3647 | ||
c65d77d8 JB |
3648 | static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors) |
3649 | { | |
3650 | struct drm_device *dev = crtc->dev; | |
3651 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3652 | int refclk; | |
3653 | ||
3654 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
3655 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) { | |
3656 | refclk = dev_priv->lvds_ssc_freq * 1000; | |
3657 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", | |
3658 | refclk / 1000); | |
3659 | } else if (!IS_GEN2(dev)) { | |
3660 | refclk = 96000; | |
3661 | } else { | |
3662 | refclk = 48000; | |
3663 | } | |
3664 | ||
3665 | return refclk; | |
3666 | } | |
3667 | ||
3668 | static void i9xx_adjust_sdvo_tv_clock(struct drm_display_mode *adjusted_mode, | |
3669 | intel_clock_t *clock) | |
3670 | { | |
3671 | /* SDVO TV has fixed PLL values depend on its clock range, | |
3672 | this mirrors vbios setting. */ | |
3673 | if (adjusted_mode->clock >= 100000 | |
3674 | && adjusted_mode->clock < 140500) { | |
3675 | clock->p1 = 2; | |
3676 | clock->p2 = 10; | |
3677 | clock->n = 3; | |
3678 | clock->m1 = 16; | |
3679 | clock->m2 = 8; | |
3680 | } else if (adjusted_mode->clock >= 140500 | |
3681 | && adjusted_mode->clock <= 200000) { | |
3682 | clock->p1 = 1; | |
3683 | clock->p2 = 10; | |
3684 | clock->n = 6; | |
3685 | clock->m1 = 12; | |
3686 | clock->m2 = 8; | |
3687 | } | |
3688 | } | |
3689 | ||
a7516a05 JB |
3690 | static void i9xx_update_pll_dividers(struct drm_crtc *crtc, |
3691 | intel_clock_t *clock, | |
3692 | intel_clock_t *reduced_clock) | |
3693 | { | |
3694 | struct drm_device *dev = crtc->dev; | |
3695 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3696 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3697 | int pipe = intel_crtc->pipe; | |
3698 | u32 fp, fp2 = 0; | |
3699 | ||
3700 | if (IS_PINEVIEW(dev)) { | |
3701 | fp = (1 << clock->n) << 16 | clock->m1 << 8 | clock->m2; | |
3702 | if (reduced_clock) | |
3703 | fp2 = (1 << reduced_clock->n) << 16 | | |
3704 | reduced_clock->m1 << 8 | reduced_clock->m2; | |
3705 | } else { | |
3706 | fp = clock->n << 16 | clock->m1 << 8 | clock->m2; | |
3707 | if (reduced_clock) | |
3708 | fp2 = reduced_clock->n << 16 | reduced_clock->m1 << 8 | | |
3709 | reduced_clock->m2; | |
3710 | } | |
3711 | ||
3712 | I915_WRITE(FP0(pipe), fp); | |
3713 | ||
3714 | intel_crtc->lowfreq_avail = false; | |
3715 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
3716 | reduced_clock && i915_powersave) { | |
3717 | I915_WRITE(FP1(pipe), fp2); | |
3718 | intel_crtc->lowfreq_avail = true; | |
3719 | } else { | |
3720 | I915_WRITE(FP1(pipe), fp); | |
3721 | } | |
3722 | } | |
3723 | ||
93e537a1 DV |
3724 | static void intel_update_lvds(struct drm_crtc *crtc, intel_clock_t *clock, |
3725 | struct drm_display_mode *adjusted_mode) | |
3726 | { | |
3727 | struct drm_device *dev = crtc->dev; | |
3728 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3729 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3730 | int pipe = intel_crtc->pipe; | |
284d5df5 | 3731 | u32 temp; |
93e537a1 DV |
3732 | |
3733 | temp = I915_READ(LVDS); | |
3734 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; | |
3735 | if (pipe == 1) { | |
3736 | temp |= LVDS_PIPEB_SELECT; | |
3737 | } else { | |
3738 | temp &= ~LVDS_PIPEB_SELECT; | |
3739 | } | |
3740 | /* set the corresponsding LVDS_BORDER bit */ | |
3741 | temp |= dev_priv->lvds_border_bits; | |
3742 | /* Set the B0-B3 data pairs corresponding to whether we're going to | |
3743 | * set the DPLLs for dual-channel mode or not. | |
3744 | */ | |
3745 | if (clock->p2 == 7) | |
3746 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; | |
3747 | else | |
3748 | temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); | |
3749 | ||
3750 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) | |
3751 | * appropriately here, but we need to look more thoroughly into how | |
3752 | * panels behave in the two modes. | |
3753 | */ | |
3754 | /* set the dithering flag on LVDS as needed */ | |
3755 | if (INTEL_INFO(dev)->gen >= 4) { | |
3756 | if (dev_priv->lvds_dither) | |
3757 | temp |= LVDS_ENABLE_DITHER; | |
3758 | else | |
3759 | temp &= ~LVDS_ENABLE_DITHER; | |
3760 | } | |
284d5df5 | 3761 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); |
93e537a1 | 3762 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) |
284d5df5 | 3763 | temp |= LVDS_HSYNC_POLARITY; |
93e537a1 | 3764 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) |
284d5df5 | 3765 | temp |= LVDS_VSYNC_POLARITY; |
93e537a1 DV |
3766 | I915_WRITE(LVDS, temp); |
3767 | } | |
3768 | ||
eb1cbe48 DV |
3769 | static void i9xx_update_pll(struct drm_crtc *crtc, |
3770 | struct drm_display_mode *mode, | |
3771 | struct drm_display_mode *adjusted_mode, | |
3772 | intel_clock_t *clock, intel_clock_t *reduced_clock, | |
3773 | int num_connectors) | |
3774 | { | |
3775 | struct drm_device *dev = crtc->dev; | |
3776 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3777 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3778 | int pipe = intel_crtc->pipe; | |
3779 | u32 dpll; | |
3780 | bool is_sdvo; | |
3781 | ||
3782 | is_sdvo = intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO) || | |
3783 | intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI); | |
3784 | ||
3785 | dpll = DPLL_VGA_MODE_DIS; | |
3786 | ||
3787 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
3788 | dpll |= DPLLB_MODE_LVDS; | |
3789 | else | |
3790 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
3791 | if (is_sdvo) { | |
3792 | int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); | |
3793 | if (pixel_multiplier > 1) { | |
3794 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) | |
3795 | dpll |= (pixel_multiplier - 1) << SDVO_MULTIPLIER_SHIFT_HIRES; | |
3796 | } | |
3797 | dpll |= DPLL_DVO_HIGH_SPEED; | |
3798 | } | |
3799 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) | |
3800 | dpll |= DPLL_DVO_HIGH_SPEED; | |
3801 | ||
3802 | /* compute bitmask from p1 value */ | |
3803 | if (IS_PINEVIEW(dev)) | |
3804 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW; | |
3805 | else { | |
3806 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
3807 | if (IS_G4X(dev) && reduced_clock) | |
3808 | dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
3809 | } | |
3810 | switch (clock->p2) { | |
3811 | case 5: | |
3812 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
3813 | break; | |
3814 | case 7: | |
3815 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
3816 | break; | |
3817 | case 10: | |
3818 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
3819 | break; | |
3820 | case 14: | |
3821 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
3822 | break; | |
3823 | } | |
3824 | if (INTEL_INFO(dev)->gen >= 4) | |
3825 | dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT); | |
3826 | ||
3827 | if (is_sdvo && intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) | |
3828 | dpll |= PLL_REF_INPUT_TVCLKINBC; | |
3829 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) | |
3830 | /* XXX: just matching BIOS for now */ | |
3831 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ | |
3832 | dpll |= 3; | |
3833 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
3834 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) | |
3835 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
3836 | else | |
3837 | dpll |= PLL_REF_INPUT_DREFCLK; | |
3838 | ||
3839 | dpll |= DPLL_VCO_ENABLE; | |
3840 | I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); | |
3841 | POSTING_READ(DPLL(pipe)); | |
3842 | udelay(150); | |
3843 | ||
3844 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. | |
3845 | * This is an exception to the general rule that mode_set doesn't turn | |
3846 | * things on. | |
3847 | */ | |
3848 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
3849 | intel_update_lvds(crtc, clock, adjusted_mode); | |
3850 | ||
3851 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) | |
3852 | intel_dp_set_m_n(crtc, mode, adjusted_mode); | |
3853 | ||
3854 | I915_WRITE(DPLL(pipe), dpll); | |
3855 | ||
3856 | /* Wait for the clocks to stabilize. */ | |
3857 | POSTING_READ(DPLL(pipe)); | |
3858 | udelay(150); | |
3859 | ||
3860 | if (INTEL_INFO(dev)->gen >= 4) { | |
3861 | u32 temp = 0; | |
3862 | if (is_sdvo) { | |
3863 | temp = intel_mode_get_pixel_multiplier(adjusted_mode); | |
3864 | if (temp > 1) | |
3865 | temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
3866 | else | |
3867 | temp = 0; | |
3868 | } | |
3869 | I915_WRITE(DPLL_MD(pipe), temp); | |
3870 | } else { | |
3871 | /* The pixel multiplier can only be updated once the | |
3872 | * DPLL is enabled and the clocks are stable. | |
3873 | * | |
3874 | * So write it again. | |
3875 | */ | |
3876 | I915_WRITE(DPLL(pipe), dpll); | |
3877 | } | |
3878 | } | |
3879 | ||
3880 | static void i8xx_update_pll(struct drm_crtc *crtc, | |
3881 | struct drm_display_mode *adjusted_mode, | |
3882 | intel_clock_t *clock, | |
3883 | int num_connectors) | |
3884 | { | |
3885 | struct drm_device *dev = crtc->dev; | |
3886 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3887 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3888 | int pipe = intel_crtc->pipe; | |
3889 | u32 dpll; | |
3890 | ||
3891 | dpll = DPLL_VGA_MODE_DIS; | |
3892 | ||
3893 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
3894 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
3895 | } else { | |
3896 | if (clock->p1 == 2) | |
3897 | dpll |= PLL_P1_DIVIDE_BY_TWO; | |
3898 | else | |
3899 | dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
3900 | if (clock->p2 == 4) | |
3901 | dpll |= PLL_P2_DIVIDE_BY_4; | |
3902 | } | |
3903 | ||
3904 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) | |
3905 | /* XXX: just matching BIOS for now */ | |
3906 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ | |
3907 | dpll |= 3; | |
3908 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
3909 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) | |
3910 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
3911 | else | |
3912 | dpll |= PLL_REF_INPUT_DREFCLK; | |
3913 | ||
3914 | dpll |= DPLL_VCO_ENABLE; | |
3915 | I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); | |
3916 | POSTING_READ(DPLL(pipe)); | |
3917 | udelay(150); | |
3918 | ||
3919 | I915_WRITE(DPLL(pipe), dpll); | |
3920 | ||
3921 | /* Wait for the clocks to stabilize. */ | |
3922 | POSTING_READ(DPLL(pipe)); | |
3923 | udelay(150); | |
3924 | ||
3925 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. | |
3926 | * This is an exception to the general rule that mode_set doesn't turn | |
3927 | * things on. | |
3928 | */ | |
3929 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
3930 | intel_update_lvds(crtc, clock, adjusted_mode); | |
3931 | ||
3932 | /* The pixel multiplier can only be updated once the | |
3933 | * DPLL is enabled and the clocks are stable. | |
3934 | * | |
3935 | * So write it again. | |
3936 | */ | |
3937 | I915_WRITE(DPLL(pipe), dpll); | |
3938 | } | |
3939 | ||
f564048e EA |
3940 | static int i9xx_crtc_mode_set(struct drm_crtc *crtc, |
3941 | struct drm_display_mode *mode, | |
3942 | struct drm_display_mode *adjusted_mode, | |
3943 | int x, int y, | |
3944 | struct drm_framebuffer *old_fb) | |
79e53945 JB |
3945 | { |
3946 | struct drm_device *dev = crtc->dev; | |
3947 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3948 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3949 | int pipe = intel_crtc->pipe; | |
80824003 | 3950 | int plane = intel_crtc->plane; |
c751ce4f | 3951 | int refclk, num_connectors = 0; |
652c393a | 3952 | intel_clock_t clock, reduced_clock; |
eb1cbe48 DV |
3953 | u32 dspcntr, pipeconf, vsyncshift; |
3954 | bool ok, has_reduced_clock = false, is_sdvo = false; | |
3955 | bool is_lvds = false, is_tv = false, is_dp = false; | |
79e53945 | 3956 | struct drm_mode_config *mode_config = &dev->mode_config; |
5eddb70b | 3957 | struct intel_encoder *encoder; |
d4906093 | 3958 | const intel_limit_t *limit; |
5c3b82e2 | 3959 | int ret; |
79e53945 | 3960 | |
5eddb70b CW |
3961 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) { |
3962 | if (encoder->base.crtc != crtc) | |
79e53945 JB |
3963 | continue; |
3964 | ||
5eddb70b | 3965 | switch (encoder->type) { |
79e53945 JB |
3966 | case INTEL_OUTPUT_LVDS: |
3967 | is_lvds = true; | |
3968 | break; | |
3969 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 3970 | case INTEL_OUTPUT_HDMI: |
79e53945 | 3971 | is_sdvo = true; |
5eddb70b | 3972 | if (encoder->needs_tv_clock) |
e2f0ba97 | 3973 | is_tv = true; |
79e53945 | 3974 | break; |
79e53945 JB |
3975 | case INTEL_OUTPUT_TVOUT: |
3976 | is_tv = true; | |
3977 | break; | |
a4fc5ed6 KP |
3978 | case INTEL_OUTPUT_DISPLAYPORT: |
3979 | is_dp = true; | |
3980 | break; | |
79e53945 | 3981 | } |
43565a06 | 3982 | |
c751ce4f | 3983 | num_connectors++; |
79e53945 JB |
3984 | } |
3985 | ||
c65d77d8 | 3986 | refclk = i9xx_get_refclk(crtc, num_connectors); |
79e53945 | 3987 | |
d4906093 ML |
3988 | /* |
3989 | * Returns a set of divisors for the desired target clock with the given | |
3990 | * refclk, or FALSE. The returned values represent the clock equation: | |
3991 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
3992 | */ | |
1b894b59 | 3993 | limit = intel_limit(crtc, refclk); |
cec2f356 SP |
3994 | ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL, |
3995 | &clock); | |
79e53945 JB |
3996 | if (!ok) { |
3997 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
5c3b82e2 | 3998 | return -EINVAL; |
79e53945 JB |
3999 | } |
4000 | ||
cda4b7d3 | 4001 | /* Ensure that the cursor is valid for the new mode before changing... */ |
6b383a7f | 4002 | intel_crtc_update_cursor(crtc, true); |
cda4b7d3 | 4003 | |
ddc9003c | 4004 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
cec2f356 SP |
4005 | /* |
4006 | * Ensure we match the reduced clock's P to the target clock. | |
4007 | * If the clocks don't match, we can't switch the display clock | |
4008 | * by using the FP0/FP1. In such case we will disable the LVDS | |
4009 | * downclock feature. | |
4010 | */ | |
ddc9003c | 4011 | has_reduced_clock = limit->find_pll(limit, crtc, |
5eddb70b CW |
4012 | dev_priv->lvds_downclock, |
4013 | refclk, | |
cec2f356 | 4014 | &clock, |
5eddb70b | 4015 | &reduced_clock); |
7026d4ac ZW |
4016 | } |
4017 | ||
c65d77d8 JB |
4018 | if (is_sdvo && is_tv) |
4019 | i9xx_adjust_sdvo_tv_clock(adjusted_mode, &clock); | |
7026d4ac | 4020 | |
a7516a05 JB |
4021 | i9xx_update_pll_dividers(crtc, &clock, has_reduced_clock ? |
4022 | &reduced_clock : NULL); | |
79e53945 | 4023 | |
eb1cbe48 DV |
4024 | if (IS_GEN2(dev)) |
4025 | i8xx_update_pll(crtc, adjusted_mode, &clock, num_connectors); | |
79e53945 | 4026 | else |
eb1cbe48 DV |
4027 | i9xx_update_pll(crtc, mode, adjusted_mode, &clock, |
4028 | has_reduced_clock ? &reduced_clock : NULL, | |
4029 | num_connectors); | |
79e53945 JB |
4030 | |
4031 | /* setup pipeconf */ | |
5eddb70b | 4032 | pipeconf = I915_READ(PIPECONF(pipe)); |
79e53945 JB |
4033 | |
4034 | /* Set up the display plane register */ | |
4035 | dspcntr = DISPPLANE_GAMMA_ENABLE; | |
4036 | ||
929c77fb EA |
4037 | if (pipe == 0) |
4038 | dspcntr &= ~DISPPLANE_SEL_PIPE_MASK; | |
4039 | else | |
4040 | dspcntr |= DISPPLANE_SEL_PIPE_B; | |
79e53945 | 4041 | |
a6c45cf0 | 4042 | if (pipe == 0 && INTEL_INFO(dev)->gen < 4) { |
79e53945 JB |
4043 | /* Enable pixel doubling when the dot clock is > 90% of the (display) |
4044 | * core speed. | |
4045 | * | |
4046 | * XXX: No double-wide on 915GM pipe B. Is that the only reason for the | |
4047 | * pipe == 0 check? | |
4048 | */ | |
e70236a8 JB |
4049 | if (mode->clock > |
4050 | dev_priv->display.get_display_clock_speed(dev) * 9 / 10) | |
5eddb70b | 4051 | pipeconf |= PIPECONF_DOUBLE_WIDE; |
79e53945 | 4052 | else |
5eddb70b | 4053 | pipeconf &= ~PIPECONF_DOUBLE_WIDE; |
79e53945 JB |
4054 | } |
4055 | ||
3b5c78a3 AJ |
4056 | /* default to 8bpc */ |
4057 | pipeconf &= ~(PIPECONF_BPP_MASK | PIPECONF_DITHER_EN); | |
4058 | if (is_dp) { | |
4059 | if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) { | |
4060 | pipeconf |= PIPECONF_BPP_6 | | |
4061 | PIPECONF_DITHER_EN | | |
4062 | PIPECONF_DITHER_TYPE_SP; | |
4063 | } | |
4064 | } | |
4065 | ||
28c97730 | 4066 | DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B'); |
79e53945 JB |
4067 | drm_mode_debug_printmodeline(mode); |
4068 | ||
a7516a05 JB |
4069 | if (HAS_PIPE_CXSR(dev)) { |
4070 | if (intel_crtc->lowfreq_avail) { | |
28c97730 | 4071 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); |
652c393a | 4072 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; |
a7516a05 | 4073 | } else { |
28c97730 | 4074 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); |
652c393a JB |
4075 | pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK; |
4076 | } | |
4077 | } | |
4078 | ||
617cf884 | 4079 | pipeconf &= ~PIPECONF_INTERLACE_MASK; |
dbb02575 DV |
4080 | if (!IS_GEN2(dev) && |
4081 | adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { | |
734b4157 KH |
4082 | pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; |
4083 | /* the chip adds 2 halflines automatically */ | |
734b4157 | 4084 | adjusted_mode->crtc_vtotal -= 1; |
734b4157 | 4085 | adjusted_mode->crtc_vblank_end -= 1; |
0529a0d9 DV |
4086 | vsyncshift = adjusted_mode->crtc_hsync_start |
4087 | - adjusted_mode->crtc_htotal/2; | |
4088 | } else { | |
617cf884 | 4089 | pipeconf |= PIPECONF_PROGRESSIVE; |
0529a0d9 DV |
4090 | vsyncshift = 0; |
4091 | } | |
4092 | ||
4093 | if (!IS_GEN3(dev)) | |
4094 | I915_WRITE(VSYNCSHIFT(pipe), vsyncshift); | |
734b4157 | 4095 | |
5eddb70b CW |
4096 | I915_WRITE(HTOTAL(pipe), |
4097 | (adjusted_mode->crtc_hdisplay - 1) | | |
79e53945 | 4098 | ((adjusted_mode->crtc_htotal - 1) << 16)); |
5eddb70b CW |
4099 | I915_WRITE(HBLANK(pipe), |
4100 | (adjusted_mode->crtc_hblank_start - 1) | | |
79e53945 | 4101 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); |
5eddb70b CW |
4102 | I915_WRITE(HSYNC(pipe), |
4103 | (adjusted_mode->crtc_hsync_start - 1) | | |
79e53945 | 4104 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); |
5eddb70b CW |
4105 | |
4106 | I915_WRITE(VTOTAL(pipe), | |
4107 | (adjusted_mode->crtc_vdisplay - 1) | | |
79e53945 | 4108 | ((adjusted_mode->crtc_vtotal - 1) << 16)); |
5eddb70b CW |
4109 | I915_WRITE(VBLANK(pipe), |
4110 | (adjusted_mode->crtc_vblank_start - 1) | | |
79e53945 | 4111 | ((adjusted_mode->crtc_vblank_end - 1) << 16)); |
5eddb70b CW |
4112 | I915_WRITE(VSYNC(pipe), |
4113 | (adjusted_mode->crtc_vsync_start - 1) | | |
79e53945 | 4114 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); |
5eddb70b CW |
4115 | |
4116 | /* pipesrc and dspsize control the size that is scaled from, | |
4117 | * which should always be the user's requested size. | |
79e53945 | 4118 | */ |
929c77fb EA |
4119 | I915_WRITE(DSPSIZE(plane), |
4120 | ((mode->vdisplay - 1) << 16) | | |
4121 | (mode->hdisplay - 1)); | |
4122 | I915_WRITE(DSPPOS(plane), 0); | |
5eddb70b CW |
4123 | I915_WRITE(PIPESRC(pipe), |
4124 | ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); | |
2c07245f | 4125 | |
f564048e EA |
4126 | I915_WRITE(PIPECONF(pipe), pipeconf); |
4127 | POSTING_READ(PIPECONF(pipe)); | |
929c77fb | 4128 | intel_enable_pipe(dev_priv, pipe, false); |
f564048e EA |
4129 | |
4130 | intel_wait_for_vblank(dev, pipe); | |
4131 | ||
f564048e EA |
4132 | I915_WRITE(DSPCNTR(plane), dspcntr); |
4133 | POSTING_READ(DSPCNTR(plane)); | |
4134 | ||
4135 | ret = intel_pipe_set_base(crtc, x, y, old_fb); | |
4136 | ||
4137 | intel_update_watermarks(dev); | |
4138 | ||
f564048e EA |
4139 | return ret; |
4140 | } | |
4141 | ||
9fb526db KP |
4142 | /* |
4143 | * Initialize reference clocks when the driver loads | |
4144 | */ | |
4145 | void ironlake_init_pch_refclk(struct drm_device *dev) | |
13d83a67 JB |
4146 | { |
4147 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4148 | struct drm_mode_config *mode_config = &dev->mode_config; | |
13d83a67 | 4149 | struct intel_encoder *encoder; |
13d83a67 JB |
4150 | u32 temp; |
4151 | bool has_lvds = false; | |
199e5d79 KP |
4152 | bool has_cpu_edp = false; |
4153 | bool has_pch_edp = false; | |
4154 | bool has_panel = false; | |
99eb6a01 KP |
4155 | bool has_ck505 = false; |
4156 | bool can_ssc = false; | |
13d83a67 JB |
4157 | |
4158 | /* We need to take the global config into account */ | |
199e5d79 KP |
4159 | list_for_each_entry(encoder, &mode_config->encoder_list, |
4160 | base.head) { | |
4161 | switch (encoder->type) { | |
4162 | case INTEL_OUTPUT_LVDS: | |
4163 | has_panel = true; | |
4164 | has_lvds = true; | |
4165 | break; | |
4166 | case INTEL_OUTPUT_EDP: | |
4167 | has_panel = true; | |
4168 | if (intel_encoder_is_pch_edp(&encoder->base)) | |
4169 | has_pch_edp = true; | |
4170 | else | |
4171 | has_cpu_edp = true; | |
4172 | break; | |
13d83a67 JB |
4173 | } |
4174 | } | |
4175 | ||
99eb6a01 KP |
4176 | if (HAS_PCH_IBX(dev)) { |
4177 | has_ck505 = dev_priv->display_clock_mode; | |
4178 | can_ssc = has_ck505; | |
4179 | } else { | |
4180 | has_ck505 = false; | |
4181 | can_ssc = true; | |
4182 | } | |
4183 | ||
4184 | DRM_DEBUG_KMS("has_panel %d has_lvds %d has_pch_edp %d has_cpu_edp %d has_ck505 %d\n", | |
4185 | has_panel, has_lvds, has_pch_edp, has_cpu_edp, | |
4186 | has_ck505); | |
13d83a67 JB |
4187 | |
4188 | /* Ironlake: try to setup display ref clock before DPLL | |
4189 | * enabling. This is only under driver's control after | |
4190 | * PCH B stepping, previous chipset stepping should be | |
4191 | * ignoring this setting. | |
4192 | */ | |
4193 | temp = I915_READ(PCH_DREF_CONTROL); | |
4194 | /* Always enable nonspread source */ | |
4195 | temp &= ~DREF_NONSPREAD_SOURCE_MASK; | |
13d83a67 | 4196 | |
99eb6a01 KP |
4197 | if (has_ck505) |
4198 | temp |= DREF_NONSPREAD_CK505_ENABLE; | |
4199 | else | |
4200 | temp |= DREF_NONSPREAD_SOURCE_ENABLE; | |
13d83a67 | 4201 | |
199e5d79 KP |
4202 | if (has_panel) { |
4203 | temp &= ~DREF_SSC_SOURCE_MASK; | |
4204 | temp |= DREF_SSC_SOURCE_ENABLE; | |
13d83a67 | 4205 | |
199e5d79 | 4206 | /* SSC must be turned on before enabling the CPU output */ |
99eb6a01 | 4207 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 4208 | DRM_DEBUG_KMS("Using SSC on panel\n"); |
13d83a67 | 4209 | temp |= DREF_SSC1_ENABLE; |
e77166b5 DV |
4210 | } else |
4211 | temp &= ~DREF_SSC1_ENABLE; | |
199e5d79 KP |
4212 | |
4213 | /* Get SSC going before enabling the outputs */ | |
4214 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
4215 | POSTING_READ(PCH_DREF_CONTROL); | |
4216 | udelay(200); | |
4217 | ||
13d83a67 JB |
4218 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
4219 | ||
4220 | /* Enable CPU source on CPU attached eDP */ | |
199e5d79 | 4221 | if (has_cpu_edp) { |
99eb6a01 | 4222 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 4223 | DRM_DEBUG_KMS("Using SSC on eDP\n"); |
13d83a67 | 4224 | temp |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; |
199e5d79 | 4225 | } |
13d83a67 JB |
4226 | else |
4227 | temp |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; | |
199e5d79 KP |
4228 | } else |
4229 | temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
4230 | ||
4231 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
4232 | POSTING_READ(PCH_DREF_CONTROL); | |
4233 | udelay(200); | |
4234 | } else { | |
4235 | DRM_DEBUG_KMS("Disabling SSC entirely\n"); | |
4236 | ||
4237 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; | |
4238 | ||
4239 | /* Turn off CPU output */ | |
4240 | temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
4241 | ||
4242 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
4243 | POSTING_READ(PCH_DREF_CONTROL); | |
4244 | udelay(200); | |
4245 | ||
4246 | /* Turn off the SSC source */ | |
4247 | temp &= ~DREF_SSC_SOURCE_MASK; | |
4248 | temp |= DREF_SSC_SOURCE_DISABLE; | |
4249 | ||
4250 | /* Turn off SSC1 */ | |
4251 | temp &= ~ DREF_SSC1_ENABLE; | |
4252 | ||
13d83a67 JB |
4253 | I915_WRITE(PCH_DREF_CONTROL, temp); |
4254 | POSTING_READ(PCH_DREF_CONTROL); | |
4255 | udelay(200); | |
4256 | } | |
4257 | } | |
4258 | ||
d9d444cb JB |
4259 | static int ironlake_get_refclk(struct drm_crtc *crtc) |
4260 | { | |
4261 | struct drm_device *dev = crtc->dev; | |
4262 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4263 | struct intel_encoder *encoder; | |
4264 | struct drm_mode_config *mode_config = &dev->mode_config; | |
4265 | struct intel_encoder *edp_encoder = NULL; | |
4266 | int num_connectors = 0; | |
4267 | bool is_lvds = false; | |
4268 | ||
4269 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) { | |
4270 | if (encoder->base.crtc != crtc) | |
4271 | continue; | |
4272 | ||
4273 | switch (encoder->type) { | |
4274 | case INTEL_OUTPUT_LVDS: | |
4275 | is_lvds = true; | |
4276 | break; | |
4277 | case INTEL_OUTPUT_EDP: | |
4278 | edp_encoder = encoder; | |
4279 | break; | |
4280 | } | |
4281 | num_connectors++; | |
4282 | } | |
4283 | ||
4284 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) { | |
4285 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", | |
4286 | dev_priv->lvds_ssc_freq); | |
4287 | return dev_priv->lvds_ssc_freq * 1000; | |
4288 | } | |
4289 | ||
4290 | return 120000; | |
4291 | } | |
4292 | ||
f564048e EA |
4293 | static int ironlake_crtc_mode_set(struct drm_crtc *crtc, |
4294 | struct drm_display_mode *mode, | |
4295 | struct drm_display_mode *adjusted_mode, | |
4296 | int x, int y, | |
4297 | struct drm_framebuffer *old_fb) | |
79e53945 JB |
4298 | { |
4299 | struct drm_device *dev = crtc->dev; | |
4300 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4301 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4302 | int pipe = intel_crtc->pipe; | |
80824003 | 4303 | int plane = intel_crtc->plane; |
c751ce4f | 4304 | int refclk, num_connectors = 0; |
652c393a | 4305 | intel_clock_t clock, reduced_clock; |
5eddb70b | 4306 | u32 dpll, fp = 0, fp2 = 0, dspcntr, pipeconf; |
a07d6787 | 4307 | bool ok, has_reduced_clock = false, is_sdvo = false; |
a4fc5ed6 | 4308 | bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false; |
79e53945 | 4309 | struct drm_mode_config *mode_config = &dev->mode_config; |
e3aef172 | 4310 | struct intel_encoder *encoder, *edp_encoder = NULL; |
d4906093 | 4311 | const intel_limit_t *limit; |
5c3b82e2 | 4312 | int ret; |
2c07245f | 4313 | struct fdi_m_n m_n = {0}; |
fae14981 | 4314 | u32 temp; |
5a354204 JB |
4315 | int target_clock, pixel_multiplier, lane, link_bw, factor; |
4316 | unsigned int pipe_bpp; | |
4317 | bool dither; | |
e3aef172 | 4318 | bool is_cpu_edp = false, is_pch_edp = false; |
79e53945 | 4319 | |
5eddb70b CW |
4320 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) { |
4321 | if (encoder->base.crtc != crtc) | |
79e53945 JB |
4322 | continue; |
4323 | ||
5eddb70b | 4324 | switch (encoder->type) { |
79e53945 JB |
4325 | case INTEL_OUTPUT_LVDS: |
4326 | is_lvds = true; | |
4327 | break; | |
4328 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 4329 | case INTEL_OUTPUT_HDMI: |
79e53945 | 4330 | is_sdvo = true; |
5eddb70b | 4331 | if (encoder->needs_tv_clock) |
e2f0ba97 | 4332 | is_tv = true; |
79e53945 | 4333 | break; |
79e53945 JB |
4334 | case INTEL_OUTPUT_TVOUT: |
4335 | is_tv = true; | |
4336 | break; | |
4337 | case INTEL_OUTPUT_ANALOG: | |
4338 | is_crt = true; | |
4339 | break; | |
a4fc5ed6 KP |
4340 | case INTEL_OUTPUT_DISPLAYPORT: |
4341 | is_dp = true; | |
4342 | break; | |
32f9d658 | 4343 | case INTEL_OUTPUT_EDP: |
e3aef172 JB |
4344 | is_dp = true; |
4345 | if (intel_encoder_is_pch_edp(&encoder->base)) | |
4346 | is_pch_edp = true; | |
4347 | else | |
4348 | is_cpu_edp = true; | |
4349 | edp_encoder = encoder; | |
32f9d658 | 4350 | break; |
79e53945 | 4351 | } |
43565a06 | 4352 | |
c751ce4f | 4353 | num_connectors++; |
79e53945 JB |
4354 | } |
4355 | ||
d9d444cb | 4356 | refclk = ironlake_get_refclk(crtc); |
79e53945 | 4357 | |
d4906093 ML |
4358 | /* |
4359 | * Returns a set of divisors for the desired target clock with the given | |
4360 | * refclk, or FALSE. The returned values represent the clock equation: | |
4361 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
4362 | */ | |
1b894b59 | 4363 | limit = intel_limit(crtc, refclk); |
cec2f356 SP |
4364 | ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL, |
4365 | &clock); | |
79e53945 JB |
4366 | if (!ok) { |
4367 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
5c3b82e2 | 4368 | return -EINVAL; |
79e53945 JB |
4369 | } |
4370 | ||
cda4b7d3 | 4371 | /* Ensure that the cursor is valid for the new mode before changing... */ |
6b383a7f | 4372 | intel_crtc_update_cursor(crtc, true); |
cda4b7d3 | 4373 | |
ddc9003c | 4374 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
cec2f356 SP |
4375 | /* |
4376 | * Ensure we match the reduced clock's P to the target clock. | |
4377 | * If the clocks don't match, we can't switch the display clock | |
4378 | * by using the FP0/FP1. In such case we will disable the LVDS | |
4379 | * downclock feature. | |
4380 | */ | |
ddc9003c | 4381 | has_reduced_clock = limit->find_pll(limit, crtc, |
5eddb70b CW |
4382 | dev_priv->lvds_downclock, |
4383 | refclk, | |
cec2f356 | 4384 | &clock, |
5eddb70b | 4385 | &reduced_clock); |
652c393a | 4386 | } |
7026d4ac ZW |
4387 | /* SDVO TV has fixed PLL values depend on its clock range, |
4388 | this mirrors vbios setting. */ | |
4389 | if (is_sdvo && is_tv) { | |
4390 | if (adjusted_mode->clock >= 100000 | |
5eddb70b | 4391 | && adjusted_mode->clock < 140500) { |
7026d4ac ZW |
4392 | clock.p1 = 2; |
4393 | clock.p2 = 10; | |
4394 | clock.n = 3; | |
4395 | clock.m1 = 16; | |
4396 | clock.m2 = 8; | |
4397 | } else if (adjusted_mode->clock >= 140500 | |
5eddb70b | 4398 | && adjusted_mode->clock <= 200000) { |
7026d4ac ZW |
4399 | clock.p1 = 1; |
4400 | clock.p2 = 10; | |
4401 | clock.n = 6; | |
4402 | clock.m1 = 12; | |
4403 | clock.m2 = 8; | |
4404 | } | |
4405 | } | |
4406 | ||
2c07245f | 4407 | /* FDI link */ |
8febb297 EA |
4408 | pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); |
4409 | lane = 0; | |
4410 | /* CPU eDP doesn't require FDI link, so just set DP M/N | |
4411 | according to current link config */ | |
e3aef172 | 4412 | if (is_cpu_edp) { |
8febb297 | 4413 | target_clock = mode->clock; |
e3aef172 | 4414 | intel_edp_link_config(edp_encoder, &lane, &link_bw); |
8febb297 EA |
4415 | } else { |
4416 | /* [e]DP over FDI requires target mode clock | |
4417 | instead of link clock */ | |
e3aef172 | 4418 | if (is_dp) |
5eb08b69 | 4419 | target_clock = mode->clock; |
8febb297 EA |
4420 | else |
4421 | target_clock = adjusted_mode->clock; | |
4422 | ||
4423 | /* FDI is a binary signal running at ~2.7GHz, encoding | |
4424 | * each output octet as 10 bits. The actual frequency | |
4425 | * is stored as a divider into a 100MHz clock, and the | |
4426 | * mode pixel clock is stored in units of 1KHz. | |
4427 | * Hence the bw of each lane in terms of the mode signal | |
4428 | * is: | |
4429 | */ | |
4430 | link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10; | |
4431 | } | |
58a27471 | 4432 | |
8febb297 EA |
4433 | /* determine panel color depth */ |
4434 | temp = I915_READ(PIPECONF(pipe)); | |
4435 | temp &= ~PIPE_BPC_MASK; | |
3b5c78a3 | 4436 | dither = intel_choose_pipe_bpp_dither(crtc, &pipe_bpp, mode); |
5a354204 JB |
4437 | switch (pipe_bpp) { |
4438 | case 18: | |
4439 | temp |= PIPE_6BPC; | |
8febb297 | 4440 | break; |
5a354204 JB |
4441 | case 24: |
4442 | temp |= PIPE_8BPC; | |
8febb297 | 4443 | break; |
5a354204 JB |
4444 | case 30: |
4445 | temp |= PIPE_10BPC; | |
8febb297 | 4446 | break; |
5a354204 JB |
4447 | case 36: |
4448 | temp |= PIPE_12BPC; | |
8febb297 EA |
4449 | break; |
4450 | default: | |
62ac41a6 JB |
4451 | WARN(1, "intel_choose_pipe_bpp returned invalid value %d\n", |
4452 | pipe_bpp); | |
5a354204 JB |
4453 | temp |= PIPE_8BPC; |
4454 | pipe_bpp = 24; | |
4455 | break; | |
8febb297 | 4456 | } |
77ffb597 | 4457 | |
5a354204 JB |
4458 | intel_crtc->bpp = pipe_bpp; |
4459 | I915_WRITE(PIPECONF(pipe), temp); | |
4460 | ||
8febb297 EA |
4461 | if (!lane) { |
4462 | /* | |
4463 | * Account for spread spectrum to avoid | |
4464 | * oversubscribing the link. Max center spread | |
4465 | * is 2.5%; use 5% for safety's sake. | |
4466 | */ | |
5a354204 | 4467 | u32 bps = target_clock * intel_crtc->bpp * 21 / 20; |
8febb297 | 4468 | lane = bps / (link_bw * 8) + 1; |
5eb08b69 | 4469 | } |
2c07245f | 4470 | |
8febb297 EA |
4471 | intel_crtc->fdi_lanes = lane; |
4472 | ||
4473 | if (pixel_multiplier > 1) | |
4474 | link_bw *= pixel_multiplier; | |
5a354204 JB |
4475 | ironlake_compute_m_n(intel_crtc->bpp, lane, target_clock, link_bw, |
4476 | &m_n); | |
8febb297 | 4477 | |
a07d6787 EA |
4478 | fp = clock.n << 16 | clock.m1 << 8 | clock.m2; |
4479 | if (has_reduced_clock) | |
4480 | fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 | | |
4481 | reduced_clock.m2; | |
79e53945 | 4482 | |
c1858123 | 4483 | /* Enable autotuning of the PLL clock (if permissible) */ |
8febb297 EA |
4484 | factor = 21; |
4485 | if (is_lvds) { | |
4486 | if ((intel_panel_use_ssc(dev_priv) && | |
4487 | dev_priv->lvds_ssc_freq == 100) || | |
4488 | (I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP) | |
4489 | factor = 25; | |
4490 | } else if (is_sdvo && is_tv) | |
4491 | factor = 20; | |
c1858123 | 4492 | |
cb0e0931 | 4493 | if (clock.m < factor * clock.n) |
8febb297 | 4494 | fp |= FP_CB_TUNE; |
2c07245f | 4495 | |
5eddb70b | 4496 | dpll = 0; |
2c07245f | 4497 | |
a07d6787 EA |
4498 | if (is_lvds) |
4499 | dpll |= DPLLB_MODE_LVDS; | |
4500 | else | |
4501 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
4502 | if (is_sdvo) { | |
4503 | int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); | |
4504 | if (pixel_multiplier > 1) { | |
4505 | dpll |= (pixel_multiplier - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; | |
79e53945 | 4506 | } |
a07d6787 EA |
4507 | dpll |= DPLL_DVO_HIGH_SPEED; |
4508 | } | |
e3aef172 | 4509 | if (is_dp && !is_cpu_edp) |
a07d6787 | 4510 | dpll |= DPLL_DVO_HIGH_SPEED; |
79e53945 | 4511 | |
a07d6787 EA |
4512 | /* compute bitmask from p1 value */ |
4513 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4514 | /* also FPA1 */ | |
4515 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
4516 | ||
4517 | switch (clock.p2) { | |
4518 | case 5: | |
4519 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
4520 | break; | |
4521 | case 7: | |
4522 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
4523 | break; | |
4524 | case 10: | |
4525 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
4526 | break; | |
4527 | case 14: | |
4528 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
4529 | break; | |
79e53945 JB |
4530 | } |
4531 | ||
43565a06 KH |
4532 | if (is_sdvo && is_tv) |
4533 | dpll |= PLL_REF_INPUT_TVCLKINBC; | |
4534 | else if (is_tv) | |
79e53945 | 4535 | /* XXX: just matching BIOS for now */ |
43565a06 | 4536 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ |
79e53945 | 4537 | dpll |= 3; |
a7615030 | 4538 | else if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
43565a06 | 4539 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
79e53945 JB |
4540 | else |
4541 | dpll |= PLL_REF_INPUT_DREFCLK; | |
4542 | ||
4543 | /* setup pipeconf */ | |
5eddb70b | 4544 | pipeconf = I915_READ(PIPECONF(pipe)); |
79e53945 JB |
4545 | |
4546 | /* Set up the display plane register */ | |
4547 | dspcntr = DISPPLANE_GAMMA_ENABLE; | |
4548 | ||
f7cb34d4 | 4549 | DRM_DEBUG_KMS("Mode for pipe %d:\n", pipe); |
79e53945 JB |
4550 | drm_mode_debug_printmodeline(mode); |
4551 | ||
9d82aa17 ED |
4552 | /* CPU eDP is the only output that doesn't need a PCH PLL of its own on |
4553 | * pre-Haswell/LPT generation */ | |
4554 | if (HAS_PCH_LPT(dev)) { | |
4555 | DRM_DEBUG_KMS("LPT detected: no PLL for pipe %d necessary\n", | |
4556 | pipe); | |
4557 | } else if (!is_cpu_edp) { | |
ee7b9f93 | 4558 | struct intel_pch_pll *pll; |
4b645f14 | 4559 | |
ee7b9f93 JB |
4560 | pll = intel_get_pch_pll(intel_crtc, dpll, fp); |
4561 | if (pll == NULL) { | |
4562 | DRM_DEBUG_DRIVER("failed to find PLL for pipe %d\n", | |
4563 | pipe); | |
4b645f14 JB |
4564 | return -EINVAL; |
4565 | } | |
ee7b9f93 JB |
4566 | } else |
4567 | intel_put_pch_pll(intel_crtc); | |
79e53945 JB |
4568 | |
4569 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. | |
4570 | * This is an exception to the general rule that mode_set doesn't turn | |
4571 | * things on. | |
4572 | */ | |
4573 | if (is_lvds) { | |
fae14981 | 4574 | temp = I915_READ(PCH_LVDS); |
5eddb70b | 4575 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; |
7885d205 JB |
4576 | if (HAS_PCH_CPT(dev)) { |
4577 | temp &= ~PORT_TRANS_SEL_MASK; | |
4b645f14 | 4578 | temp |= PORT_TRANS_SEL_CPT(pipe); |
7885d205 JB |
4579 | } else { |
4580 | if (pipe == 1) | |
4581 | temp |= LVDS_PIPEB_SELECT; | |
4582 | else | |
4583 | temp &= ~LVDS_PIPEB_SELECT; | |
4584 | } | |
4b645f14 | 4585 | |
a3e17eb8 | 4586 | /* set the corresponsding LVDS_BORDER bit */ |
5eddb70b | 4587 | temp |= dev_priv->lvds_border_bits; |
79e53945 JB |
4588 | /* Set the B0-B3 data pairs corresponding to whether we're going to |
4589 | * set the DPLLs for dual-channel mode or not. | |
4590 | */ | |
4591 | if (clock.p2 == 7) | |
5eddb70b | 4592 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; |
79e53945 | 4593 | else |
5eddb70b | 4594 | temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); |
79e53945 JB |
4595 | |
4596 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) | |
4597 | * appropriately here, but we need to look more thoroughly into how | |
4598 | * panels behave in the two modes. | |
4599 | */ | |
284d5df5 | 4600 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); |
aa9b500d | 4601 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) |
284d5df5 | 4602 | temp |= LVDS_HSYNC_POLARITY; |
aa9b500d | 4603 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) |
284d5df5 | 4604 | temp |= LVDS_VSYNC_POLARITY; |
fae14981 | 4605 | I915_WRITE(PCH_LVDS, temp); |
79e53945 | 4606 | } |
434ed097 | 4607 | |
8febb297 EA |
4608 | pipeconf &= ~PIPECONF_DITHER_EN; |
4609 | pipeconf &= ~PIPECONF_DITHER_TYPE_MASK; | |
5a354204 | 4610 | if ((is_lvds && dev_priv->lvds_dither) || dither) { |
8febb297 | 4611 | pipeconf |= PIPECONF_DITHER_EN; |
f74974c7 | 4612 | pipeconf |= PIPECONF_DITHER_TYPE_SP; |
434ed097 | 4613 | } |
e3aef172 | 4614 | if (is_dp && !is_cpu_edp) { |
a4fc5ed6 | 4615 | intel_dp_set_m_n(crtc, mode, adjusted_mode); |
8febb297 | 4616 | } else { |
8db9d77b | 4617 | /* For non-DP output, clear any trans DP clock recovery setting.*/ |
9db4a9c7 JB |
4618 | I915_WRITE(TRANSDATA_M1(pipe), 0); |
4619 | I915_WRITE(TRANSDATA_N1(pipe), 0); | |
4620 | I915_WRITE(TRANSDPLINK_M1(pipe), 0); | |
4621 | I915_WRITE(TRANSDPLINK_N1(pipe), 0); | |
8db9d77b | 4622 | } |
79e53945 | 4623 | |
ee7b9f93 JB |
4624 | if (intel_crtc->pch_pll) { |
4625 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); | |
5eddb70b | 4626 | |
32f9d658 | 4627 | /* Wait for the clocks to stabilize. */ |
ee7b9f93 | 4628 | POSTING_READ(intel_crtc->pch_pll->pll_reg); |
32f9d658 ZW |
4629 | udelay(150); |
4630 | ||
8febb297 EA |
4631 | /* The pixel multiplier can only be updated once the |
4632 | * DPLL is enabled and the clocks are stable. | |
4633 | * | |
4634 | * So write it again. | |
4635 | */ | |
ee7b9f93 | 4636 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); |
79e53945 | 4637 | } |
79e53945 | 4638 | |
5eddb70b | 4639 | intel_crtc->lowfreq_avail = false; |
ee7b9f93 | 4640 | if (intel_crtc->pch_pll) { |
4b645f14 | 4641 | if (is_lvds && has_reduced_clock && i915_powersave) { |
ee7b9f93 | 4642 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp2); |
4b645f14 JB |
4643 | intel_crtc->lowfreq_avail = true; |
4644 | if (HAS_PIPE_CXSR(dev)) { | |
4645 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); | |
4646 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; | |
4647 | } | |
4648 | } else { | |
ee7b9f93 | 4649 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp); |
4b645f14 JB |
4650 | if (HAS_PIPE_CXSR(dev)) { |
4651 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); | |
4652 | pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK; | |
4653 | } | |
652c393a JB |
4654 | } |
4655 | } | |
4656 | ||
617cf884 | 4657 | pipeconf &= ~PIPECONF_INTERLACE_MASK; |
734b4157 | 4658 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { |
5def474e | 4659 | pipeconf |= PIPECONF_INTERLACED_ILK; |
734b4157 | 4660 | /* the chip adds 2 halflines automatically */ |
734b4157 | 4661 | adjusted_mode->crtc_vtotal -= 1; |
734b4157 | 4662 | adjusted_mode->crtc_vblank_end -= 1; |
0529a0d9 DV |
4663 | I915_WRITE(VSYNCSHIFT(pipe), |
4664 | adjusted_mode->crtc_hsync_start | |
4665 | - adjusted_mode->crtc_htotal/2); | |
4666 | } else { | |
617cf884 | 4667 | pipeconf |= PIPECONF_PROGRESSIVE; |
0529a0d9 DV |
4668 | I915_WRITE(VSYNCSHIFT(pipe), 0); |
4669 | } | |
734b4157 | 4670 | |
5eddb70b CW |
4671 | I915_WRITE(HTOTAL(pipe), |
4672 | (adjusted_mode->crtc_hdisplay - 1) | | |
79e53945 | 4673 | ((adjusted_mode->crtc_htotal - 1) << 16)); |
5eddb70b CW |
4674 | I915_WRITE(HBLANK(pipe), |
4675 | (adjusted_mode->crtc_hblank_start - 1) | | |
79e53945 | 4676 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); |
5eddb70b CW |
4677 | I915_WRITE(HSYNC(pipe), |
4678 | (adjusted_mode->crtc_hsync_start - 1) | | |
79e53945 | 4679 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); |
5eddb70b CW |
4680 | |
4681 | I915_WRITE(VTOTAL(pipe), | |
4682 | (adjusted_mode->crtc_vdisplay - 1) | | |
79e53945 | 4683 | ((adjusted_mode->crtc_vtotal - 1) << 16)); |
5eddb70b CW |
4684 | I915_WRITE(VBLANK(pipe), |
4685 | (adjusted_mode->crtc_vblank_start - 1) | | |
79e53945 | 4686 | ((adjusted_mode->crtc_vblank_end - 1) << 16)); |
5eddb70b CW |
4687 | I915_WRITE(VSYNC(pipe), |
4688 | (adjusted_mode->crtc_vsync_start - 1) | | |
79e53945 | 4689 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); |
5eddb70b | 4690 | |
8febb297 EA |
4691 | /* pipesrc controls the size that is scaled from, which should |
4692 | * always be the user's requested size. | |
79e53945 | 4693 | */ |
5eddb70b CW |
4694 | I915_WRITE(PIPESRC(pipe), |
4695 | ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); | |
2c07245f | 4696 | |
8febb297 EA |
4697 | I915_WRITE(PIPE_DATA_M1(pipe), TU_SIZE(m_n.tu) | m_n.gmch_m); |
4698 | I915_WRITE(PIPE_DATA_N1(pipe), m_n.gmch_n); | |
4699 | I915_WRITE(PIPE_LINK_M1(pipe), m_n.link_m); | |
4700 | I915_WRITE(PIPE_LINK_N1(pipe), m_n.link_n); | |
2c07245f | 4701 | |
e3aef172 | 4702 | if (is_cpu_edp) |
8febb297 | 4703 | ironlake_set_pll_edp(crtc, adjusted_mode->clock); |
2c07245f | 4704 | |
5eddb70b CW |
4705 | I915_WRITE(PIPECONF(pipe), pipeconf); |
4706 | POSTING_READ(PIPECONF(pipe)); | |
79e53945 | 4707 | |
9d0498a2 | 4708 | intel_wait_for_vblank(dev, pipe); |
79e53945 | 4709 | |
5eddb70b | 4710 | I915_WRITE(DSPCNTR(plane), dspcntr); |
b24e7179 | 4711 | POSTING_READ(DSPCNTR(plane)); |
79e53945 | 4712 | |
5c3b82e2 | 4713 | ret = intel_pipe_set_base(crtc, x, y, old_fb); |
7662c8bd SL |
4714 | |
4715 | intel_update_watermarks(dev); | |
4716 | ||
1f8eeabf ED |
4717 | intel_update_linetime_watermarks(dev, pipe, adjusted_mode); |
4718 | ||
1f803ee5 | 4719 | return ret; |
79e53945 JB |
4720 | } |
4721 | ||
f564048e EA |
4722 | static int intel_crtc_mode_set(struct drm_crtc *crtc, |
4723 | struct drm_display_mode *mode, | |
4724 | struct drm_display_mode *adjusted_mode, | |
4725 | int x, int y, | |
4726 | struct drm_framebuffer *old_fb) | |
4727 | { | |
4728 | struct drm_device *dev = crtc->dev; | |
4729 | struct drm_i915_private *dev_priv = dev->dev_private; | |
0b701d27 EA |
4730 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
4731 | int pipe = intel_crtc->pipe; | |
f564048e EA |
4732 | int ret; |
4733 | ||
0b701d27 | 4734 | drm_vblank_pre_modeset(dev, pipe); |
7662c8bd | 4735 | |
f564048e EA |
4736 | ret = dev_priv->display.crtc_mode_set(crtc, mode, adjusted_mode, |
4737 | x, y, old_fb); | |
79e53945 | 4738 | drm_vblank_post_modeset(dev, pipe); |
5c3b82e2 | 4739 | |
d8e70a25 JB |
4740 | if (ret) |
4741 | intel_crtc->dpms_mode = DRM_MODE_DPMS_OFF; | |
4742 | else | |
4743 | intel_crtc->dpms_mode = DRM_MODE_DPMS_ON; | |
120eced9 | 4744 | |
1f803ee5 | 4745 | return ret; |
79e53945 JB |
4746 | } |
4747 | ||
3a9627f4 WF |
4748 | static bool intel_eld_uptodate(struct drm_connector *connector, |
4749 | int reg_eldv, uint32_t bits_eldv, | |
4750 | int reg_elda, uint32_t bits_elda, | |
4751 | int reg_edid) | |
4752 | { | |
4753 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
4754 | uint8_t *eld = connector->eld; | |
4755 | uint32_t i; | |
4756 | ||
4757 | i = I915_READ(reg_eldv); | |
4758 | i &= bits_eldv; | |
4759 | ||
4760 | if (!eld[0]) | |
4761 | return !i; | |
4762 | ||
4763 | if (!i) | |
4764 | return false; | |
4765 | ||
4766 | i = I915_READ(reg_elda); | |
4767 | i &= ~bits_elda; | |
4768 | I915_WRITE(reg_elda, i); | |
4769 | ||
4770 | for (i = 0; i < eld[2]; i++) | |
4771 | if (I915_READ(reg_edid) != *((uint32_t *)eld + i)) | |
4772 | return false; | |
4773 | ||
4774 | return true; | |
4775 | } | |
4776 | ||
e0dac65e WF |
4777 | static void g4x_write_eld(struct drm_connector *connector, |
4778 | struct drm_crtc *crtc) | |
4779 | { | |
4780 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
4781 | uint8_t *eld = connector->eld; | |
4782 | uint32_t eldv; | |
4783 | uint32_t len; | |
4784 | uint32_t i; | |
4785 | ||
4786 | i = I915_READ(G4X_AUD_VID_DID); | |
4787 | ||
4788 | if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL) | |
4789 | eldv = G4X_ELDV_DEVCL_DEVBLC; | |
4790 | else | |
4791 | eldv = G4X_ELDV_DEVCTG; | |
4792 | ||
3a9627f4 WF |
4793 | if (intel_eld_uptodate(connector, |
4794 | G4X_AUD_CNTL_ST, eldv, | |
4795 | G4X_AUD_CNTL_ST, G4X_ELD_ADDR, | |
4796 | G4X_HDMIW_HDMIEDID)) | |
4797 | return; | |
4798 | ||
e0dac65e WF |
4799 | i = I915_READ(G4X_AUD_CNTL_ST); |
4800 | i &= ~(eldv | G4X_ELD_ADDR); | |
4801 | len = (i >> 9) & 0x1f; /* ELD buffer size */ | |
4802 | I915_WRITE(G4X_AUD_CNTL_ST, i); | |
4803 | ||
4804 | if (!eld[0]) | |
4805 | return; | |
4806 | ||
4807 | len = min_t(uint8_t, eld[2], len); | |
4808 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
4809 | for (i = 0; i < len; i++) | |
4810 | I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i)); | |
4811 | ||
4812 | i = I915_READ(G4X_AUD_CNTL_ST); | |
4813 | i |= eldv; | |
4814 | I915_WRITE(G4X_AUD_CNTL_ST, i); | |
4815 | } | |
4816 | ||
4817 | static void ironlake_write_eld(struct drm_connector *connector, | |
4818 | struct drm_crtc *crtc) | |
4819 | { | |
4820 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
4821 | uint8_t *eld = connector->eld; | |
4822 | uint32_t eldv; | |
4823 | uint32_t i; | |
4824 | int len; | |
4825 | int hdmiw_hdmiedid; | |
b6daa025 | 4826 | int aud_config; |
e0dac65e WF |
4827 | int aud_cntl_st; |
4828 | int aud_cntrl_st2; | |
4829 | ||
b3f33cbf | 4830 | if (HAS_PCH_IBX(connector->dev)) { |
1202b4c6 | 4831 | hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID_A; |
b6daa025 | 4832 | aud_config = IBX_AUD_CONFIG_A; |
1202b4c6 WF |
4833 | aud_cntl_st = IBX_AUD_CNTL_ST_A; |
4834 | aud_cntrl_st2 = IBX_AUD_CNTL_ST2; | |
e0dac65e | 4835 | } else { |
1202b4c6 | 4836 | hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID_A; |
b6daa025 | 4837 | aud_config = CPT_AUD_CONFIG_A; |
1202b4c6 WF |
4838 | aud_cntl_st = CPT_AUD_CNTL_ST_A; |
4839 | aud_cntrl_st2 = CPT_AUD_CNTRL_ST2; | |
e0dac65e WF |
4840 | } |
4841 | ||
4842 | i = to_intel_crtc(crtc)->pipe; | |
4843 | hdmiw_hdmiedid += i * 0x100; | |
4844 | aud_cntl_st += i * 0x100; | |
b6daa025 | 4845 | aud_config += i * 0x100; |
e0dac65e WF |
4846 | |
4847 | DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(i)); | |
4848 | ||
4849 | i = I915_READ(aud_cntl_st); | |
4850 | i = (i >> 29) & 0x3; /* DIP_Port_Select, 0x1 = PortB */ | |
4851 | if (!i) { | |
4852 | DRM_DEBUG_DRIVER("Audio directed to unknown port\n"); | |
4853 | /* operate blindly on all ports */ | |
1202b4c6 WF |
4854 | eldv = IBX_ELD_VALIDB; |
4855 | eldv |= IBX_ELD_VALIDB << 4; | |
4856 | eldv |= IBX_ELD_VALIDB << 8; | |
e0dac65e WF |
4857 | } else { |
4858 | DRM_DEBUG_DRIVER("ELD on port %c\n", 'A' + i); | |
1202b4c6 | 4859 | eldv = IBX_ELD_VALIDB << ((i - 1) * 4); |
e0dac65e WF |
4860 | } |
4861 | ||
3a9627f4 WF |
4862 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
4863 | DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n"); | |
4864 | eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */ | |
b6daa025 WF |
4865 | I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */ |
4866 | } else | |
4867 | I915_WRITE(aud_config, 0); | |
e0dac65e | 4868 | |
3a9627f4 WF |
4869 | if (intel_eld_uptodate(connector, |
4870 | aud_cntrl_st2, eldv, | |
4871 | aud_cntl_st, IBX_ELD_ADDRESS, | |
4872 | hdmiw_hdmiedid)) | |
4873 | return; | |
4874 | ||
e0dac65e WF |
4875 | i = I915_READ(aud_cntrl_st2); |
4876 | i &= ~eldv; | |
4877 | I915_WRITE(aud_cntrl_st2, i); | |
4878 | ||
4879 | if (!eld[0]) | |
4880 | return; | |
4881 | ||
e0dac65e | 4882 | i = I915_READ(aud_cntl_st); |
1202b4c6 | 4883 | i &= ~IBX_ELD_ADDRESS; |
e0dac65e WF |
4884 | I915_WRITE(aud_cntl_st, i); |
4885 | ||
4886 | len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */ | |
4887 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
4888 | for (i = 0; i < len; i++) | |
4889 | I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i)); | |
4890 | ||
4891 | i = I915_READ(aud_cntrl_st2); | |
4892 | i |= eldv; | |
4893 | I915_WRITE(aud_cntrl_st2, i); | |
4894 | } | |
4895 | ||
4896 | void intel_write_eld(struct drm_encoder *encoder, | |
4897 | struct drm_display_mode *mode) | |
4898 | { | |
4899 | struct drm_crtc *crtc = encoder->crtc; | |
4900 | struct drm_connector *connector; | |
4901 | struct drm_device *dev = encoder->dev; | |
4902 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4903 | ||
4904 | connector = drm_select_eld(encoder, mode); | |
4905 | if (!connector) | |
4906 | return; | |
4907 | ||
4908 | DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", | |
4909 | connector->base.id, | |
4910 | drm_get_connector_name(connector), | |
4911 | connector->encoder->base.id, | |
4912 | drm_get_encoder_name(connector->encoder)); | |
4913 | ||
4914 | connector->eld[6] = drm_av_sync_delay(connector, mode) / 2; | |
4915 | ||
4916 | if (dev_priv->display.write_eld) | |
4917 | dev_priv->display.write_eld(connector, crtc); | |
4918 | } | |
4919 | ||
79e53945 JB |
4920 | /** Loads the palette/gamma unit for the CRTC with the prepared values */ |
4921 | void intel_crtc_load_lut(struct drm_crtc *crtc) | |
4922 | { | |
4923 | struct drm_device *dev = crtc->dev; | |
4924 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4925 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
9db4a9c7 | 4926 | int palreg = PALETTE(intel_crtc->pipe); |
79e53945 JB |
4927 | int i; |
4928 | ||
4929 | /* The clocks have to be on to load the palette. */ | |
aed3f09d | 4930 | if (!crtc->enabled || !intel_crtc->active) |
79e53945 JB |
4931 | return; |
4932 | ||
f2b115e6 | 4933 | /* use legacy palette for Ironlake */ |
bad720ff | 4934 | if (HAS_PCH_SPLIT(dev)) |
9db4a9c7 | 4935 | palreg = LGC_PALETTE(intel_crtc->pipe); |
2c07245f | 4936 | |
79e53945 JB |
4937 | for (i = 0; i < 256; i++) { |
4938 | I915_WRITE(palreg + 4 * i, | |
4939 | (intel_crtc->lut_r[i] << 16) | | |
4940 | (intel_crtc->lut_g[i] << 8) | | |
4941 | intel_crtc->lut_b[i]); | |
4942 | } | |
4943 | } | |
4944 | ||
560b85bb CW |
4945 | static void i845_update_cursor(struct drm_crtc *crtc, u32 base) |
4946 | { | |
4947 | struct drm_device *dev = crtc->dev; | |
4948 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4949 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4950 | bool visible = base != 0; | |
4951 | u32 cntl; | |
4952 | ||
4953 | if (intel_crtc->cursor_visible == visible) | |
4954 | return; | |
4955 | ||
9db4a9c7 | 4956 | cntl = I915_READ(_CURACNTR); |
560b85bb CW |
4957 | if (visible) { |
4958 | /* On these chipsets we can only modify the base whilst | |
4959 | * the cursor is disabled. | |
4960 | */ | |
9db4a9c7 | 4961 | I915_WRITE(_CURABASE, base); |
560b85bb CW |
4962 | |
4963 | cntl &= ~(CURSOR_FORMAT_MASK); | |
4964 | /* XXX width must be 64, stride 256 => 0x00 << 28 */ | |
4965 | cntl |= CURSOR_ENABLE | | |
4966 | CURSOR_GAMMA_ENABLE | | |
4967 | CURSOR_FORMAT_ARGB; | |
4968 | } else | |
4969 | cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE); | |
9db4a9c7 | 4970 | I915_WRITE(_CURACNTR, cntl); |
560b85bb CW |
4971 | |
4972 | intel_crtc->cursor_visible = visible; | |
4973 | } | |
4974 | ||
4975 | static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base) | |
4976 | { | |
4977 | struct drm_device *dev = crtc->dev; | |
4978 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4979 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4980 | int pipe = intel_crtc->pipe; | |
4981 | bool visible = base != 0; | |
4982 | ||
4983 | if (intel_crtc->cursor_visible != visible) { | |
548f245b | 4984 | uint32_t cntl = I915_READ(CURCNTR(pipe)); |
560b85bb CW |
4985 | if (base) { |
4986 | cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT); | |
4987 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; | |
4988 | cntl |= pipe << 28; /* Connect to correct pipe */ | |
4989 | } else { | |
4990 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); | |
4991 | cntl |= CURSOR_MODE_DISABLE; | |
4992 | } | |
9db4a9c7 | 4993 | I915_WRITE(CURCNTR(pipe), cntl); |
560b85bb CW |
4994 | |
4995 | intel_crtc->cursor_visible = visible; | |
4996 | } | |
4997 | /* and commit changes on next vblank */ | |
9db4a9c7 | 4998 | I915_WRITE(CURBASE(pipe), base); |
560b85bb CW |
4999 | } |
5000 | ||
65a21cd6 JB |
5001 | static void ivb_update_cursor(struct drm_crtc *crtc, u32 base) |
5002 | { | |
5003 | struct drm_device *dev = crtc->dev; | |
5004 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5005 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5006 | int pipe = intel_crtc->pipe; | |
5007 | bool visible = base != 0; | |
5008 | ||
5009 | if (intel_crtc->cursor_visible != visible) { | |
5010 | uint32_t cntl = I915_READ(CURCNTR_IVB(pipe)); | |
5011 | if (base) { | |
5012 | cntl &= ~CURSOR_MODE; | |
5013 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; | |
5014 | } else { | |
5015 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); | |
5016 | cntl |= CURSOR_MODE_DISABLE; | |
5017 | } | |
5018 | I915_WRITE(CURCNTR_IVB(pipe), cntl); | |
5019 | ||
5020 | intel_crtc->cursor_visible = visible; | |
5021 | } | |
5022 | /* and commit changes on next vblank */ | |
5023 | I915_WRITE(CURBASE_IVB(pipe), base); | |
5024 | } | |
5025 | ||
cda4b7d3 | 5026 | /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */ |
6b383a7f CW |
5027 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, |
5028 | bool on) | |
cda4b7d3 CW |
5029 | { |
5030 | struct drm_device *dev = crtc->dev; | |
5031 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5032 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5033 | int pipe = intel_crtc->pipe; | |
5034 | int x = intel_crtc->cursor_x; | |
5035 | int y = intel_crtc->cursor_y; | |
560b85bb | 5036 | u32 base, pos; |
cda4b7d3 CW |
5037 | bool visible; |
5038 | ||
5039 | pos = 0; | |
5040 | ||
6b383a7f | 5041 | if (on && crtc->enabled && crtc->fb) { |
cda4b7d3 CW |
5042 | base = intel_crtc->cursor_addr; |
5043 | if (x > (int) crtc->fb->width) | |
5044 | base = 0; | |
5045 | ||
5046 | if (y > (int) crtc->fb->height) | |
5047 | base = 0; | |
5048 | } else | |
5049 | base = 0; | |
5050 | ||
5051 | if (x < 0) { | |
5052 | if (x + intel_crtc->cursor_width < 0) | |
5053 | base = 0; | |
5054 | ||
5055 | pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT; | |
5056 | x = -x; | |
5057 | } | |
5058 | pos |= x << CURSOR_X_SHIFT; | |
5059 | ||
5060 | if (y < 0) { | |
5061 | if (y + intel_crtc->cursor_height < 0) | |
5062 | base = 0; | |
5063 | ||
5064 | pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT; | |
5065 | y = -y; | |
5066 | } | |
5067 | pos |= y << CURSOR_Y_SHIFT; | |
5068 | ||
5069 | visible = base != 0; | |
560b85bb | 5070 | if (!visible && !intel_crtc->cursor_visible) |
cda4b7d3 CW |
5071 | return; |
5072 | ||
0cd83aa9 | 5073 | if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) { |
65a21cd6 JB |
5074 | I915_WRITE(CURPOS_IVB(pipe), pos); |
5075 | ivb_update_cursor(crtc, base); | |
5076 | } else { | |
5077 | I915_WRITE(CURPOS(pipe), pos); | |
5078 | if (IS_845G(dev) || IS_I865G(dev)) | |
5079 | i845_update_cursor(crtc, base); | |
5080 | else | |
5081 | i9xx_update_cursor(crtc, base); | |
5082 | } | |
cda4b7d3 CW |
5083 | } |
5084 | ||
79e53945 | 5085 | static int intel_crtc_cursor_set(struct drm_crtc *crtc, |
05394f39 | 5086 | struct drm_file *file, |
79e53945 JB |
5087 | uint32_t handle, |
5088 | uint32_t width, uint32_t height) | |
5089 | { | |
5090 | struct drm_device *dev = crtc->dev; | |
5091 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5092 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
05394f39 | 5093 | struct drm_i915_gem_object *obj; |
cda4b7d3 | 5094 | uint32_t addr; |
3f8bc370 | 5095 | int ret; |
79e53945 | 5096 | |
28c97730 | 5097 | DRM_DEBUG_KMS("\n"); |
79e53945 JB |
5098 | |
5099 | /* if we want to turn off the cursor ignore width and height */ | |
5100 | if (!handle) { | |
28c97730 | 5101 | DRM_DEBUG_KMS("cursor off\n"); |
3f8bc370 | 5102 | addr = 0; |
05394f39 | 5103 | obj = NULL; |
5004417d | 5104 | mutex_lock(&dev->struct_mutex); |
3f8bc370 | 5105 | goto finish; |
79e53945 JB |
5106 | } |
5107 | ||
5108 | /* Currently we only support 64x64 cursors */ | |
5109 | if (width != 64 || height != 64) { | |
5110 | DRM_ERROR("we currently only support 64x64 cursors\n"); | |
5111 | return -EINVAL; | |
5112 | } | |
5113 | ||
05394f39 | 5114 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle)); |
c8725226 | 5115 | if (&obj->base == NULL) |
79e53945 JB |
5116 | return -ENOENT; |
5117 | ||
05394f39 | 5118 | if (obj->base.size < width * height * 4) { |
79e53945 | 5119 | DRM_ERROR("buffer is to small\n"); |
34b8686e DA |
5120 | ret = -ENOMEM; |
5121 | goto fail; | |
79e53945 JB |
5122 | } |
5123 | ||
71acb5eb | 5124 | /* we only need to pin inside GTT if cursor is non-phy */ |
7f9872e0 | 5125 | mutex_lock(&dev->struct_mutex); |
b295d1b6 | 5126 | if (!dev_priv->info->cursor_needs_physical) { |
d9e86c0e CW |
5127 | if (obj->tiling_mode) { |
5128 | DRM_ERROR("cursor cannot be tiled\n"); | |
5129 | ret = -EINVAL; | |
5130 | goto fail_locked; | |
5131 | } | |
5132 | ||
2da3b9b9 | 5133 | ret = i915_gem_object_pin_to_display_plane(obj, 0, NULL); |
e7b526bb CW |
5134 | if (ret) { |
5135 | DRM_ERROR("failed to move cursor bo into the GTT\n"); | |
2da3b9b9 | 5136 | goto fail_locked; |
e7b526bb CW |
5137 | } |
5138 | ||
d9e86c0e CW |
5139 | ret = i915_gem_object_put_fence(obj); |
5140 | if (ret) { | |
2da3b9b9 | 5141 | DRM_ERROR("failed to release fence for cursor"); |
d9e86c0e CW |
5142 | goto fail_unpin; |
5143 | } | |
5144 | ||
05394f39 | 5145 | addr = obj->gtt_offset; |
71acb5eb | 5146 | } else { |
6eeefaf3 | 5147 | int align = IS_I830(dev) ? 16 * 1024 : 256; |
05394f39 | 5148 | ret = i915_gem_attach_phys_object(dev, obj, |
6eeefaf3 CW |
5149 | (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1, |
5150 | align); | |
71acb5eb DA |
5151 | if (ret) { |
5152 | DRM_ERROR("failed to attach phys object\n"); | |
7f9872e0 | 5153 | goto fail_locked; |
71acb5eb | 5154 | } |
05394f39 | 5155 | addr = obj->phys_obj->handle->busaddr; |
3f8bc370 KH |
5156 | } |
5157 | ||
a6c45cf0 | 5158 | if (IS_GEN2(dev)) |
14b60391 JB |
5159 | I915_WRITE(CURSIZE, (height << 12) | width); |
5160 | ||
3f8bc370 | 5161 | finish: |
3f8bc370 | 5162 | if (intel_crtc->cursor_bo) { |
b295d1b6 | 5163 | if (dev_priv->info->cursor_needs_physical) { |
05394f39 | 5164 | if (intel_crtc->cursor_bo != obj) |
71acb5eb DA |
5165 | i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo); |
5166 | } else | |
5167 | i915_gem_object_unpin(intel_crtc->cursor_bo); | |
05394f39 | 5168 | drm_gem_object_unreference(&intel_crtc->cursor_bo->base); |
3f8bc370 | 5169 | } |
80824003 | 5170 | |
7f9872e0 | 5171 | mutex_unlock(&dev->struct_mutex); |
3f8bc370 KH |
5172 | |
5173 | intel_crtc->cursor_addr = addr; | |
05394f39 | 5174 | intel_crtc->cursor_bo = obj; |
cda4b7d3 CW |
5175 | intel_crtc->cursor_width = width; |
5176 | intel_crtc->cursor_height = height; | |
5177 | ||
6b383a7f | 5178 | intel_crtc_update_cursor(crtc, true); |
3f8bc370 | 5179 | |
79e53945 | 5180 | return 0; |
e7b526bb | 5181 | fail_unpin: |
05394f39 | 5182 | i915_gem_object_unpin(obj); |
7f9872e0 | 5183 | fail_locked: |
34b8686e | 5184 | mutex_unlock(&dev->struct_mutex); |
bc9025bd | 5185 | fail: |
05394f39 | 5186 | drm_gem_object_unreference_unlocked(&obj->base); |
34b8686e | 5187 | return ret; |
79e53945 JB |
5188 | } |
5189 | ||
5190 | static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) | |
5191 | { | |
79e53945 | 5192 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 5193 | |
cda4b7d3 CW |
5194 | intel_crtc->cursor_x = x; |
5195 | intel_crtc->cursor_y = y; | |
652c393a | 5196 | |
6b383a7f | 5197 | intel_crtc_update_cursor(crtc, true); |
79e53945 JB |
5198 | |
5199 | return 0; | |
5200 | } | |
5201 | ||
5202 | /** Sets the color ramps on behalf of RandR */ | |
5203 | void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, | |
5204 | u16 blue, int regno) | |
5205 | { | |
5206 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5207 | ||
5208 | intel_crtc->lut_r[regno] = red >> 8; | |
5209 | intel_crtc->lut_g[regno] = green >> 8; | |
5210 | intel_crtc->lut_b[regno] = blue >> 8; | |
5211 | } | |
5212 | ||
b8c00ac5 DA |
5213 | void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, |
5214 | u16 *blue, int regno) | |
5215 | { | |
5216 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5217 | ||
5218 | *red = intel_crtc->lut_r[regno] << 8; | |
5219 | *green = intel_crtc->lut_g[regno] << 8; | |
5220 | *blue = intel_crtc->lut_b[regno] << 8; | |
5221 | } | |
5222 | ||
79e53945 | 5223 | static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, |
7203425a | 5224 | u16 *blue, uint32_t start, uint32_t size) |
79e53945 | 5225 | { |
7203425a | 5226 | int end = (start + size > 256) ? 256 : start + size, i; |
79e53945 | 5227 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 5228 | |
7203425a | 5229 | for (i = start; i < end; i++) { |
79e53945 JB |
5230 | intel_crtc->lut_r[i] = red[i] >> 8; |
5231 | intel_crtc->lut_g[i] = green[i] >> 8; | |
5232 | intel_crtc->lut_b[i] = blue[i] >> 8; | |
5233 | } | |
5234 | ||
5235 | intel_crtc_load_lut(crtc); | |
5236 | } | |
5237 | ||
5238 | /** | |
5239 | * Get a pipe with a simple mode set on it for doing load-based monitor | |
5240 | * detection. | |
5241 | * | |
5242 | * It will be up to the load-detect code to adjust the pipe as appropriate for | |
c751ce4f | 5243 | * its requirements. The pipe will be connected to no other encoders. |
79e53945 | 5244 | * |
c751ce4f | 5245 | * Currently this code will only succeed if there is a pipe with no encoders |
79e53945 JB |
5246 | * configured for it. In the future, it could choose to temporarily disable |
5247 | * some outputs to free up a pipe for its use. | |
5248 | * | |
5249 | * \return crtc, or NULL if no pipes are available. | |
5250 | */ | |
5251 | ||
5252 | /* VESA 640x480x72Hz mode to set on the pipe */ | |
5253 | static struct drm_display_mode load_detect_mode = { | |
5254 | DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, | |
5255 | 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), | |
5256 | }; | |
5257 | ||
d2dff872 CW |
5258 | static struct drm_framebuffer * |
5259 | intel_framebuffer_create(struct drm_device *dev, | |
308e5bcb | 5260 | struct drm_mode_fb_cmd2 *mode_cmd, |
d2dff872 CW |
5261 | struct drm_i915_gem_object *obj) |
5262 | { | |
5263 | struct intel_framebuffer *intel_fb; | |
5264 | int ret; | |
5265 | ||
5266 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); | |
5267 | if (!intel_fb) { | |
5268 | drm_gem_object_unreference_unlocked(&obj->base); | |
5269 | return ERR_PTR(-ENOMEM); | |
5270 | } | |
5271 | ||
5272 | ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj); | |
5273 | if (ret) { | |
5274 | drm_gem_object_unreference_unlocked(&obj->base); | |
5275 | kfree(intel_fb); | |
5276 | return ERR_PTR(ret); | |
5277 | } | |
5278 | ||
5279 | return &intel_fb->base; | |
5280 | } | |
5281 | ||
5282 | static u32 | |
5283 | intel_framebuffer_pitch_for_width(int width, int bpp) | |
5284 | { | |
5285 | u32 pitch = DIV_ROUND_UP(width * bpp, 8); | |
5286 | return ALIGN(pitch, 64); | |
5287 | } | |
5288 | ||
5289 | static u32 | |
5290 | intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp) | |
5291 | { | |
5292 | u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp); | |
5293 | return ALIGN(pitch * mode->vdisplay, PAGE_SIZE); | |
5294 | } | |
5295 | ||
5296 | static struct drm_framebuffer * | |
5297 | intel_framebuffer_create_for_mode(struct drm_device *dev, | |
5298 | struct drm_display_mode *mode, | |
5299 | int depth, int bpp) | |
5300 | { | |
5301 | struct drm_i915_gem_object *obj; | |
308e5bcb | 5302 | struct drm_mode_fb_cmd2 mode_cmd; |
d2dff872 CW |
5303 | |
5304 | obj = i915_gem_alloc_object(dev, | |
5305 | intel_framebuffer_size_for_mode(mode, bpp)); | |
5306 | if (obj == NULL) | |
5307 | return ERR_PTR(-ENOMEM); | |
5308 | ||
5309 | mode_cmd.width = mode->hdisplay; | |
5310 | mode_cmd.height = mode->vdisplay; | |
308e5bcb JB |
5311 | mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width, |
5312 | bpp); | |
5ca0c34a | 5313 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); |
d2dff872 CW |
5314 | |
5315 | return intel_framebuffer_create(dev, &mode_cmd, obj); | |
5316 | } | |
5317 | ||
5318 | static struct drm_framebuffer * | |
5319 | mode_fits_in_fbdev(struct drm_device *dev, | |
5320 | struct drm_display_mode *mode) | |
5321 | { | |
5322 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5323 | struct drm_i915_gem_object *obj; | |
5324 | struct drm_framebuffer *fb; | |
5325 | ||
5326 | if (dev_priv->fbdev == NULL) | |
5327 | return NULL; | |
5328 | ||
5329 | obj = dev_priv->fbdev->ifb.obj; | |
5330 | if (obj == NULL) | |
5331 | return NULL; | |
5332 | ||
5333 | fb = &dev_priv->fbdev->ifb.base; | |
01f2c773 VS |
5334 | if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay, |
5335 | fb->bits_per_pixel)) | |
d2dff872 CW |
5336 | return NULL; |
5337 | ||
01f2c773 | 5338 | if (obj->base.size < mode->vdisplay * fb->pitches[0]) |
d2dff872 CW |
5339 | return NULL; |
5340 | ||
5341 | return fb; | |
5342 | } | |
5343 | ||
7173188d CW |
5344 | bool intel_get_load_detect_pipe(struct intel_encoder *intel_encoder, |
5345 | struct drm_connector *connector, | |
5346 | struct drm_display_mode *mode, | |
8261b191 | 5347 | struct intel_load_detect_pipe *old) |
79e53945 JB |
5348 | { |
5349 | struct intel_crtc *intel_crtc; | |
5350 | struct drm_crtc *possible_crtc; | |
4ef69c7a | 5351 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 JB |
5352 | struct drm_crtc *crtc = NULL; |
5353 | struct drm_device *dev = encoder->dev; | |
d2dff872 | 5354 | struct drm_framebuffer *old_fb; |
79e53945 JB |
5355 | int i = -1; |
5356 | ||
d2dff872 CW |
5357 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
5358 | connector->base.id, drm_get_connector_name(connector), | |
5359 | encoder->base.id, drm_get_encoder_name(encoder)); | |
5360 | ||
79e53945 JB |
5361 | /* |
5362 | * Algorithm gets a little messy: | |
7a5e4805 | 5363 | * |
79e53945 JB |
5364 | * - if the connector already has an assigned crtc, use it (but make |
5365 | * sure it's on first) | |
7a5e4805 | 5366 | * |
79e53945 JB |
5367 | * - try to find the first unused crtc that can drive this connector, |
5368 | * and use that if we find one | |
79e53945 JB |
5369 | */ |
5370 | ||
5371 | /* See if we already have a CRTC for this connector */ | |
5372 | if (encoder->crtc) { | |
5373 | crtc = encoder->crtc; | |
8261b191 | 5374 | |
79e53945 | 5375 | intel_crtc = to_intel_crtc(crtc); |
8261b191 CW |
5376 | old->dpms_mode = intel_crtc->dpms_mode; |
5377 | old->load_detect_temp = false; | |
5378 | ||
5379 | /* Make sure the crtc and connector are running */ | |
79e53945 | 5380 | if (intel_crtc->dpms_mode != DRM_MODE_DPMS_ON) { |
6492711d CW |
5381 | struct drm_encoder_helper_funcs *encoder_funcs; |
5382 | struct drm_crtc_helper_funcs *crtc_funcs; | |
5383 | ||
79e53945 JB |
5384 | crtc_funcs = crtc->helper_private; |
5385 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); | |
6492711d CW |
5386 | |
5387 | encoder_funcs = encoder->helper_private; | |
79e53945 JB |
5388 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); |
5389 | } | |
8261b191 | 5390 | |
7173188d | 5391 | return true; |
79e53945 JB |
5392 | } |
5393 | ||
5394 | /* Find an unused one (if possible) */ | |
5395 | list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) { | |
5396 | i++; | |
5397 | if (!(encoder->possible_crtcs & (1 << i))) | |
5398 | continue; | |
5399 | if (!possible_crtc->enabled) { | |
5400 | crtc = possible_crtc; | |
5401 | break; | |
5402 | } | |
79e53945 JB |
5403 | } |
5404 | ||
5405 | /* | |
5406 | * If we didn't find an unused CRTC, don't use any. | |
5407 | */ | |
5408 | if (!crtc) { | |
7173188d CW |
5409 | DRM_DEBUG_KMS("no pipe available for load-detect\n"); |
5410 | return false; | |
79e53945 JB |
5411 | } |
5412 | ||
5413 | encoder->crtc = crtc; | |
c1c43977 | 5414 | connector->encoder = encoder; |
79e53945 JB |
5415 | |
5416 | intel_crtc = to_intel_crtc(crtc); | |
8261b191 CW |
5417 | old->dpms_mode = intel_crtc->dpms_mode; |
5418 | old->load_detect_temp = true; | |
d2dff872 | 5419 | old->release_fb = NULL; |
79e53945 | 5420 | |
6492711d CW |
5421 | if (!mode) |
5422 | mode = &load_detect_mode; | |
79e53945 | 5423 | |
d2dff872 CW |
5424 | old_fb = crtc->fb; |
5425 | ||
5426 | /* We need a framebuffer large enough to accommodate all accesses | |
5427 | * that the plane may generate whilst we perform load detection. | |
5428 | * We can not rely on the fbcon either being present (we get called | |
5429 | * during its initialisation to detect all boot displays, or it may | |
5430 | * not even exist) or that it is large enough to satisfy the | |
5431 | * requested mode. | |
5432 | */ | |
5433 | crtc->fb = mode_fits_in_fbdev(dev, mode); | |
5434 | if (crtc->fb == NULL) { | |
5435 | DRM_DEBUG_KMS("creating tmp fb for load-detection\n"); | |
5436 | crtc->fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32); | |
5437 | old->release_fb = crtc->fb; | |
5438 | } else | |
5439 | DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n"); | |
5440 | if (IS_ERR(crtc->fb)) { | |
5441 | DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n"); | |
5442 | crtc->fb = old_fb; | |
5443 | return false; | |
79e53945 | 5444 | } |
79e53945 | 5445 | |
d2dff872 | 5446 | if (!drm_crtc_helper_set_mode(crtc, mode, 0, 0, old_fb)) { |
6492711d | 5447 | DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n"); |
d2dff872 CW |
5448 | if (old->release_fb) |
5449 | old->release_fb->funcs->destroy(old->release_fb); | |
5450 | crtc->fb = old_fb; | |
6492711d | 5451 | return false; |
79e53945 | 5452 | } |
7173188d | 5453 | |
79e53945 | 5454 | /* let the connector get through one full cycle before testing */ |
9d0498a2 | 5455 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
79e53945 | 5456 | |
7173188d | 5457 | return true; |
79e53945 JB |
5458 | } |
5459 | ||
c1c43977 | 5460 | void intel_release_load_detect_pipe(struct intel_encoder *intel_encoder, |
8261b191 CW |
5461 | struct drm_connector *connector, |
5462 | struct intel_load_detect_pipe *old) | |
79e53945 | 5463 | { |
4ef69c7a | 5464 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 JB |
5465 | struct drm_device *dev = encoder->dev; |
5466 | struct drm_crtc *crtc = encoder->crtc; | |
5467 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
5468 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
5469 | ||
d2dff872 CW |
5470 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
5471 | connector->base.id, drm_get_connector_name(connector), | |
5472 | encoder->base.id, drm_get_encoder_name(encoder)); | |
5473 | ||
8261b191 | 5474 | if (old->load_detect_temp) { |
c1c43977 | 5475 | connector->encoder = NULL; |
79e53945 | 5476 | drm_helper_disable_unused_functions(dev); |
d2dff872 CW |
5477 | |
5478 | if (old->release_fb) | |
5479 | old->release_fb->funcs->destroy(old->release_fb); | |
5480 | ||
0622a53c | 5481 | return; |
79e53945 JB |
5482 | } |
5483 | ||
c751ce4f | 5484 | /* Switch crtc and encoder back off if necessary */ |
0622a53c CW |
5485 | if (old->dpms_mode != DRM_MODE_DPMS_ON) { |
5486 | encoder_funcs->dpms(encoder, old->dpms_mode); | |
8261b191 | 5487 | crtc_funcs->dpms(crtc, old->dpms_mode); |
79e53945 JB |
5488 | } |
5489 | } | |
5490 | ||
5491 | /* Returns the clock of the currently programmed mode of the given pipe. */ | |
5492 | static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc) | |
5493 | { | |
5494 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5495 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5496 | int pipe = intel_crtc->pipe; | |
548f245b | 5497 | u32 dpll = I915_READ(DPLL(pipe)); |
79e53945 JB |
5498 | u32 fp; |
5499 | intel_clock_t clock; | |
5500 | ||
5501 | if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) | |
39adb7a5 | 5502 | fp = I915_READ(FP0(pipe)); |
79e53945 | 5503 | else |
39adb7a5 | 5504 | fp = I915_READ(FP1(pipe)); |
79e53945 JB |
5505 | |
5506 | clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; | |
f2b115e6 AJ |
5507 | if (IS_PINEVIEW(dev)) { |
5508 | clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; | |
5509 | clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
2177832f SL |
5510 | } else { |
5511 | clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; | |
5512 | clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
5513 | } | |
5514 | ||
a6c45cf0 | 5515 | if (!IS_GEN2(dev)) { |
f2b115e6 AJ |
5516 | if (IS_PINEVIEW(dev)) |
5517 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >> | |
5518 | DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW); | |
2177832f SL |
5519 | else |
5520 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> | |
79e53945 JB |
5521 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
5522 | ||
5523 | switch (dpll & DPLL_MODE_MASK) { | |
5524 | case DPLLB_MODE_DAC_SERIAL: | |
5525 | clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? | |
5526 | 5 : 10; | |
5527 | break; | |
5528 | case DPLLB_MODE_LVDS: | |
5529 | clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? | |
5530 | 7 : 14; | |
5531 | break; | |
5532 | default: | |
28c97730 | 5533 | DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed " |
79e53945 JB |
5534 | "mode\n", (int)(dpll & DPLL_MODE_MASK)); |
5535 | return 0; | |
5536 | } | |
5537 | ||
5538 | /* XXX: Handle the 100Mhz refclk */ | |
2177832f | 5539 | intel_clock(dev, 96000, &clock); |
79e53945 JB |
5540 | } else { |
5541 | bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN); | |
5542 | ||
5543 | if (is_lvds) { | |
5544 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> | |
5545 | DPLL_FPA01_P1_POST_DIV_SHIFT); | |
5546 | clock.p2 = 14; | |
5547 | ||
5548 | if ((dpll & PLL_REF_INPUT_MASK) == | |
5549 | PLLB_REF_INPUT_SPREADSPECTRUMIN) { | |
5550 | /* XXX: might not be 66MHz */ | |
2177832f | 5551 | intel_clock(dev, 66000, &clock); |
79e53945 | 5552 | } else |
2177832f | 5553 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
5554 | } else { |
5555 | if (dpll & PLL_P1_DIVIDE_BY_TWO) | |
5556 | clock.p1 = 2; | |
5557 | else { | |
5558 | clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> | |
5559 | DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; | |
5560 | } | |
5561 | if (dpll & PLL_P2_DIVIDE_BY_4) | |
5562 | clock.p2 = 4; | |
5563 | else | |
5564 | clock.p2 = 2; | |
5565 | ||
2177832f | 5566 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
5567 | } |
5568 | } | |
5569 | ||
5570 | /* XXX: It would be nice to validate the clocks, but we can't reuse | |
5571 | * i830PllIsValid() because it relies on the xf86_config connector | |
5572 | * configuration being accurate, which it isn't necessarily. | |
5573 | */ | |
5574 | ||
5575 | return clock.dot; | |
5576 | } | |
5577 | ||
5578 | /** Returns the currently programmed mode of the given pipe. */ | |
5579 | struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, | |
5580 | struct drm_crtc *crtc) | |
5581 | { | |
548f245b | 5582 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 JB |
5583 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5584 | int pipe = intel_crtc->pipe; | |
5585 | struct drm_display_mode *mode; | |
548f245b JB |
5586 | int htot = I915_READ(HTOTAL(pipe)); |
5587 | int hsync = I915_READ(HSYNC(pipe)); | |
5588 | int vtot = I915_READ(VTOTAL(pipe)); | |
5589 | int vsync = I915_READ(VSYNC(pipe)); | |
79e53945 JB |
5590 | |
5591 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); | |
5592 | if (!mode) | |
5593 | return NULL; | |
5594 | ||
5595 | mode->clock = intel_crtc_clock_get(dev, crtc); | |
5596 | mode->hdisplay = (htot & 0xffff) + 1; | |
5597 | mode->htotal = ((htot & 0xffff0000) >> 16) + 1; | |
5598 | mode->hsync_start = (hsync & 0xffff) + 1; | |
5599 | mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; | |
5600 | mode->vdisplay = (vtot & 0xffff) + 1; | |
5601 | mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; | |
5602 | mode->vsync_start = (vsync & 0xffff) + 1; | |
5603 | mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; | |
5604 | ||
5605 | drm_mode_set_name(mode); | |
79e53945 JB |
5606 | |
5607 | return mode; | |
5608 | } | |
5609 | ||
652c393a JB |
5610 | #define GPU_IDLE_TIMEOUT 500 /* ms */ |
5611 | ||
5612 | /* When this timer fires, we've been idle for awhile */ | |
5613 | static void intel_gpu_idle_timer(unsigned long arg) | |
5614 | { | |
5615 | struct drm_device *dev = (struct drm_device *)arg; | |
5616 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5617 | ||
ff7ea4c0 CW |
5618 | if (!list_empty(&dev_priv->mm.active_list)) { |
5619 | /* Still processing requests, so just re-arm the timer. */ | |
5620 | mod_timer(&dev_priv->idle_timer, jiffies + | |
5621 | msecs_to_jiffies(GPU_IDLE_TIMEOUT)); | |
5622 | return; | |
5623 | } | |
652c393a | 5624 | |
ff7ea4c0 | 5625 | dev_priv->busy = false; |
01dfba93 | 5626 | queue_work(dev_priv->wq, &dev_priv->idle_work); |
652c393a JB |
5627 | } |
5628 | ||
652c393a JB |
5629 | #define CRTC_IDLE_TIMEOUT 1000 /* ms */ |
5630 | ||
5631 | static void intel_crtc_idle_timer(unsigned long arg) | |
5632 | { | |
5633 | struct intel_crtc *intel_crtc = (struct intel_crtc *)arg; | |
5634 | struct drm_crtc *crtc = &intel_crtc->base; | |
5635 | drm_i915_private_t *dev_priv = crtc->dev->dev_private; | |
ff7ea4c0 | 5636 | struct intel_framebuffer *intel_fb; |
652c393a | 5637 | |
ff7ea4c0 CW |
5638 | intel_fb = to_intel_framebuffer(crtc->fb); |
5639 | if (intel_fb && intel_fb->obj->active) { | |
5640 | /* The framebuffer is still being accessed by the GPU. */ | |
5641 | mod_timer(&intel_crtc->idle_timer, jiffies + | |
5642 | msecs_to_jiffies(CRTC_IDLE_TIMEOUT)); | |
5643 | return; | |
5644 | } | |
652c393a | 5645 | |
ff7ea4c0 | 5646 | intel_crtc->busy = false; |
01dfba93 | 5647 | queue_work(dev_priv->wq, &dev_priv->idle_work); |
652c393a JB |
5648 | } |
5649 | ||
3dec0095 | 5650 | static void intel_increase_pllclock(struct drm_crtc *crtc) |
652c393a JB |
5651 | { |
5652 | struct drm_device *dev = crtc->dev; | |
5653 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5654 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5655 | int pipe = intel_crtc->pipe; | |
dbdc6479 JB |
5656 | int dpll_reg = DPLL(pipe); |
5657 | int dpll; | |
652c393a | 5658 | |
bad720ff | 5659 | if (HAS_PCH_SPLIT(dev)) |
652c393a JB |
5660 | return; |
5661 | ||
5662 | if (!dev_priv->lvds_downclock_avail) | |
5663 | return; | |
5664 | ||
dbdc6479 | 5665 | dpll = I915_READ(dpll_reg); |
652c393a | 5666 | if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) { |
44d98a61 | 5667 | DRM_DEBUG_DRIVER("upclocking LVDS\n"); |
652c393a | 5668 | |
8ac5a6d5 | 5669 | assert_panel_unlocked(dev_priv, pipe); |
652c393a JB |
5670 | |
5671 | dpll &= ~DISPLAY_RATE_SELECT_FPA1; | |
5672 | I915_WRITE(dpll_reg, dpll); | |
9d0498a2 | 5673 | intel_wait_for_vblank(dev, pipe); |
dbdc6479 | 5674 | |
652c393a JB |
5675 | dpll = I915_READ(dpll_reg); |
5676 | if (dpll & DISPLAY_RATE_SELECT_FPA1) | |
44d98a61 | 5677 | DRM_DEBUG_DRIVER("failed to upclock LVDS!\n"); |
652c393a JB |
5678 | } |
5679 | ||
5680 | /* Schedule downclock */ | |
3dec0095 DV |
5681 | mod_timer(&intel_crtc->idle_timer, jiffies + |
5682 | msecs_to_jiffies(CRTC_IDLE_TIMEOUT)); | |
652c393a JB |
5683 | } |
5684 | ||
5685 | static void intel_decrease_pllclock(struct drm_crtc *crtc) | |
5686 | { | |
5687 | struct drm_device *dev = crtc->dev; | |
5688 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5689 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
652c393a | 5690 | |
bad720ff | 5691 | if (HAS_PCH_SPLIT(dev)) |
652c393a JB |
5692 | return; |
5693 | ||
5694 | if (!dev_priv->lvds_downclock_avail) | |
5695 | return; | |
5696 | ||
5697 | /* | |
5698 | * Since this is called by a timer, we should never get here in | |
5699 | * the manual case. | |
5700 | */ | |
5701 | if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) { | |
dc257cf1 DV |
5702 | int pipe = intel_crtc->pipe; |
5703 | int dpll_reg = DPLL(pipe); | |
5704 | int dpll; | |
f6e5b160 | 5705 | |
44d98a61 | 5706 | DRM_DEBUG_DRIVER("downclocking LVDS\n"); |
652c393a | 5707 | |
8ac5a6d5 | 5708 | assert_panel_unlocked(dev_priv, pipe); |
652c393a | 5709 | |
dc257cf1 | 5710 | dpll = I915_READ(dpll_reg); |
652c393a JB |
5711 | dpll |= DISPLAY_RATE_SELECT_FPA1; |
5712 | I915_WRITE(dpll_reg, dpll); | |
9d0498a2 | 5713 | intel_wait_for_vblank(dev, pipe); |
652c393a JB |
5714 | dpll = I915_READ(dpll_reg); |
5715 | if (!(dpll & DISPLAY_RATE_SELECT_FPA1)) | |
44d98a61 | 5716 | DRM_DEBUG_DRIVER("failed to downclock LVDS!\n"); |
652c393a JB |
5717 | } |
5718 | ||
5719 | } | |
5720 | ||
5721 | /** | |
5722 | * intel_idle_update - adjust clocks for idleness | |
5723 | * @work: work struct | |
5724 | * | |
5725 | * Either the GPU or display (or both) went idle. Check the busy status | |
5726 | * here and adjust the CRTC and GPU clocks as necessary. | |
5727 | */ | |
5728 | static void intel_idle_update(struct work_struct *work) | |
5729 | { | |
5730 | drm_i915_private_t *dev_priv = container_of(work, drm_i915_private_t, | |
5731 | idle_work); | |
5732 | struct drm_device *dev = dev_priv->dev; | |
5733 | struct drm_crtc *crtc; | |
5734 | struct intel_crtc *intel_crtc; | |
5735 | ||
5736 | if (!i915_powersave) | |
5737 | return; | |
5738 | ||
5739 | mutex_lock(&dev->struct_mutex); | |
5740 | ||
7648fa99 JB |
5741 | i915_update_gfx_val(dev_priv); |
5742 | ||
652c393a JB |
5743 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
5744 | /* Skip inactive CRTCs */ | |
5745 | if (!crtc->fb) | |
5746 | continue; | |
5747 | ||
5748 | intel_crtc = to_intel_crtc(crtc); | |
5749 | if (!intel_crtc->busy) | |
5750 | intel_decrease_pllclock(crtc); | |
5751 | } | |
5752 | ||
45ac22c8 | 5753 | |
652c393a JB |
5754 | mutex_unlock(&dev->struct_mutex); |
5755 | } | |
5756 | ||
5757 | /** | |
5758 | * intel_mark_busy - mark the GPU and possibly the display busy | |
5759 | * @dev: drm device | |
5760 | * @obj: object we're operating on | |
5761 | * | |
5762 | * Callers can use this function to indicate that the GPU is busy processing | |
5763 | * commands. If @obj matches one of the CRTC objects (i.e. it's a scanout | |
5764 | * buffer), we'll also mark the display as busy, so we know to increase its | |
5765 | * clock frequency. | |
5766 | */ | |
05394f39 | 5767 | void intel_mark_busy(struct drm_device *dev, struct drm_i915_gem_object *obj) |
652c393a JB |
5768 | { |
5769 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5770 | struct drm_crtc *crtc = NULL; | |
5771 | struct intel_framebuffer *intel_fb; | |
5772 | struct intel_crtc *intel_crtc; | |
5773 | ||
5e17ee74 ZW |
5774 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
5775 | return; | |
5776 | ||
9104183d CW |
5777 | if (!dev_priv->busy) { |
5778 | intel_sanitize_pm(dev); | |
28cf798f | 5779 | dev_priv->busy = true; |
9104183d | 5780 | } else |
28cf798f CW |
5781 | mod_timer(&dev_priv->idle_timer, jiffies + |
5782 | msecs_to_jiffies(GPU_IDLE_TIMEOUT)); | |
652c393a | 5783 | |
acb87dfb CW |
5784 | if (obj == NULL) |
5785 | return; | |
5786 | ||
652c393a JB |
5787 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
5788 | if (!crtc->fb) | |
5789 | continue; | |
5790 | ||
5791 | intel_crtc = to_intel_crtc(crtc); | |
5792 | intel_fb = to_intel_framebuffer(crtc->fb); | |
5793 | if (intel_fb->obj == obj) { | |
5794 | if (!intel_crtc->busy) { | |
5795 | /* Non-busy -> busy, upclock */ | |
3dec0095 | 5796 | intel_increase_pllclock(crtc); |
652c393a JB |
5797 | intel_crtc->busy = true; |
5798 | } else { | |
5799 | /* Busy -> busy, put off timer */ | |
5800 | mod_timer(&intel_crtc->idle_timer, jiffies + | |
5801 | msecs_to_jiffies(CRTC_IDLE_TIMEOUT)); | |
5802 | } | |
5803 | } | |
5804 | } | |
5805 | } | |
5806 | ||
79e53945 JB |
5807 | static void intel_crtc_destroy(struct drm_crtc *crtc) |
5808 | { | |
5809 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
67e77c5a DV |
5810 | struct drm_device *dev = crtc->dev; |
5811 | struct intel_unpin_work *work; | |
5812 | unsigned long flags; | |
5813 | ||
5814 | spin_lock_irqsave(&dev->event_lock, flags); | |
5815 | work = intel_crtc->unpin_work; | |
5816 | intel_crtc->unpin_work = NULL; | |
5817 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
5818 | ||
5819 | if (work) { | |
5820 | cancel_work_sync(&work->work); | |
5821 | kfree(work); | |
5822 | } | |
79e53945 JB |
5823 | |
5824 | drm_crtc_cleanup(crtc); | |
67e77c5a | 5825 | |
79e53945 JB |
5826 | kfree(intel_crtc); |
5827 | } | |
5828 | ||
6b95a207 KH |
5829 | static void intel_unpin_work_fn(struct work_struct *__work) |
5830 | { | |
5831 | struct intel_unpin_work *work = | |
5832 | container_of(__work, struct intel_unpin_work, work); | |
5833 | ||
5834 | mutex_lock(&work->dev->struct_mutex); | |
1690e1eb | 5835 | intel_unpin_fb_obj(work->old_fb_obj); |
05394f39 CW |
5836 | drm_gem_object_unreference(&work->pending_flip_obj->base); |
5837 | drm_gem_object_unreference(&work->old_fb_obj->base); | |
d9e86c0e | 5838 | |
7782de3b | 5839 | intel_update_fbc(work->dev); |
6b95a207 KH |
5840 | mutex_unlock(&work->dev->struct_mutex); |
5841 | kfree(work); | |
5842 | } | |
5843 | ||
1afe3e9d | 5844 | static void do_intel_finish_page_flip(struct drm_device *dev, |
49b14a5c | 5845 | struct drm_crtc *crtc) |
6b95a207 KH |
5846 | { |
5847 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6b95a207 KH |
5848 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5849 | struct intel_unpin_work *work; | |
05394f39 | 5850 | struct drm_i915_gem_object *obj; |
6b95a207 | 5851 | struct drm_pending_vblank_event *e; |
49b14a5c | 5852 | struct timeval tnow, tvbl; |
6b95a207 KH |
5853 | unsigned long flags; |
5854 | ||
5855 | /* Ignore early vblank irqs */ | |
5856 | if (intel_crtc == NULL) | |
5857 | return; | |
5858 | ||
49b14a5c MK |
5859 | do_gettimeofday(&tnow); |
5860 | ||
6b95a207 KH |
5861 | spin_lock_irqsave(&dev->event_lock, flags); |
5862 | work = intel_crtc->unpin_work; | |
5863 | if (work == NULL || !work->pending) { | |
5864 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
5865 | return; | |
5866 | } | |
5867 | ||
5868 | intel_crtc->unpin_work = NULL; | |
6b95a207 KH |
5869 | |
5870 | if (work->event) { | |
5871 | e = work->event; | |
49b14a5c | 5872 | e->event.sequence = drm_vblank_count_and_time(dev, intel_crtc->pipe, &tvbl); |
0af7e4df MK |
5873 | |
5874 | /* Called before vblank count and timestamps have | |
5875 | * been updated for the vblank interval of flip | |
5876 | * completion? Need to increment vblank count and | |
5877 | * add one videorefresh duration to returned timestamp | |
49b14a5c MK |
5878 | * to account for this. We assume this happened if we |
5879 | * get called over 0.9 frame durations after the last | |
5880 | * timestamped vblank. | |
5881 | * | |
5882 | * This calculation can not be used with vrefresh rates | |
5883 | * below 5Hz (10Hz to be on the safe side) without | |
5884 | * promoting to 64 integers. | |
0af7e4df | 5885 | */ |
49b14a5c MK |
5886 | if (10 * (timeval_to_ns(&tnow) - timeval_to_ns(&tvbl)) > |
5887 | 9 * crtc->framedur_ns) { | |
0af7e4df | 5888 | e->event.sequence++; |
49b14a5c MK |
5889 | tvbl = ns_to_timeval(timeval_to_ns(&tvbl) + |
5890 | crtc->framedur_ns); | |
0af7e4df MK |
5891 | } |
5892 | ||
49b14a5c MK |
5893 | e->event.tv_sec = tvbl.tv_sec; |
5894 | e->event.tv_usec = tvbl.tv_usec; | |
0af7e4df | 5895 | |
6b95a207 KH |
5896 | list_add_tail(&e->base.link, |
5897 | &e->base.file_priv->event_list); | |
5898 | wake_up_interruptible(&e->base.file_priv->event_wait); | |
5899 | } | |
5900 | ||
0af7e4df MK |
5901 | drm_vblank_put(dev, intel_crtc->pipe); |
5902 | ||
6b95a207 KH |
5903 | spin_unlock_irqrestore(&dev->event_lock, flags); |
5904 | ||
05394f39 | 5905 | obj = work->old_fb_obj; |
d9e86c0e | 5906 | |
e59f2bac | 5907 | atomic_clear_mask(1 << intel_crtc->plane, |
05394f39 CW |
5908 | &obj->pending_flip.counter); |
5909 | if (atomic_read(&obj->pending_flip) == 0) | |
f787a5f5 | 5910 | wake_up(&dev_priv->pending_flip_queue); |
d9e86c0e | 5911 | |
6b95a207 | 5912 | schedule_work(&work->work); |
e5510fac JB |
5913 | |
5914 | trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj); | |
6b95a207 KH |
5915 | } |
5916 | ||
1afe3e9d JB |
5917 | void intel_finish_page_flip(struct drm_device *dev, int pipe) |
5918 | { | |
5919 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5920 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
5921 | ||
49b14a5c | 5922 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
5923 | } |
5924 | ||
5925 | void intel_finish_page_flip_plane(struct drm_device *dev, int plane) | |
5926 | { | |
5927 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5928 | struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane]; | |
5929 | ||
49b14a5c | 5930 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
5931 | } |
5932 | ||
6b95a207 KH |
5933 | void intel_prepare_page_flip(struct drm_device *dev, int plane) |
5934 | { | |
5935 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5936 | struct intel_crtc *intel_crtc = | |
5937 | to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]); | |
5938 | unsigned long flags; | |
5939 | ||
5940 | spin_lock_irqsave(&dev->event_lock, flags); | |
de3f440f | 5941 | if (intel_crtc->unpin_work) { |
4e5359cd SF |
5942 | if ((++intel_crtc->unpin_work->pending) > 1) |
5943 | DRM_ERROR("Prepared flip multiple times\n"); | |
de3f440f JB |
5944 | } else { |
5945 | DRM_DEBUG_DRIVER("preparing flip with no unpin work?\n"); | |
5946 | } | |
6b95a207 KH |
5947 | spin_unlock_irqrestore(&dev->event_lock, flags); |
5948 | } | |
5949 | ||
8c9f3aaf JB |
5950 | static int intel_gen2_queue_flip(struct drm_device *dev, |
5951 | struct drm_crtc *crtc, | |
5952 | struct drm_framebuffer *fb, | |
5953 | struct drm_i915_gem_object *obj) | |
5954 | { | |
5955 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5956 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5957 | unsigned long offset; | |
5958 | u32 flip_mask; | |
6d90c952 | 5959 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
5960 | int ret; |
5961 | ||
6d90c952 | 5962 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 5963 | if (ret) |
83d4092b | 5964 | goto err; |
8c9f3aaf JB |
5965 | |
5966 | /* Offset into the new buffer for cases of shared fbs between CRTCs */ | |
01f2c773 | 5967 | offset = crtc->y * fb->pitches[0] + crtc->x * fb->bits_per_pixel/8; |
8c9f3aaf | 5968 | |
6d90c952 | 5969 | ret = intel_ring_begin(ring, 6); |
8c9f3aaf | 5970 | if (ret) |
83d4092b | 5971 | goto err_unpin; |
8c9f3aaf JB |
5972 | |
5973 | /* Can't queue multiple flips, so wait for the previous | |
5974 | * one to finish before executing the next. | |
5975 | */ | |
5976 | if (intel_crtc->plane) | |
5977 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
5978 | else | |
5979 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
5980 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
5981 | intel_ring_emit(ring, MI_NOOP); | |
5982 | intel_ring_emit(ring, MI_DISPLAY_FLIP | | |
5983 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
5984 | intel_ring_emit(ring, fb->pitches[0]); | |
5985 | intel_ring_emit(ring, obj->gtt_offset + offset); | |
5986 | intel_ring_emit(ring, 0); /* aux display base address, unused */ | |
5987 | intel_ring_advance(ring); | |
83d4092b CW |
5988 | return 0; |
5989 | ||
5990 | err_unpin: | |
5991 | intel_unpin_fb_obj(obj); | |
5992 | err: | |
8c9f3aaf JB |
5993 | return ret; |
5994 | } | |
5995 | ||
5996 | static int intel_gen3_queue_flip(struct drm_device *dev, | |
5997 | struct drm_crtc *crtc, | |
5998 | struct drm_framebuffer *fb, | |
5999 | struct drm_i915_gem_object *obj) | |
6000 | { | |
6001 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6002 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6003 | unsigned long offset; | |
6004 | u32 flip_mask; | |
6d90c952 | 6005 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
6006 | int ret; |
6007 | ||
6d90c952 | 6008 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 6009 | if (ret) |
83d4092b | 6010 | goto err; |
8c9f3aaf JB |
6011 | |
6012 | /* Offset into the new buffer for cases of shared fbs between CRTCs */ | |
01f2c773 | 6013 | offset = crtc->y * fb->pitches[0] + crtc->x * fb->bits_per_pixel/8; |
8c9f3aaf | 6014 | |
6d90c952 | 6015 | ret = intel_ring_begin(ring, 6); |
8c9f3aaf | 6016 | if (ret) |
83d4092b | 6017 | goto err_unpin; |
8c9f3aaf JB |
6018 | |
6019 | if (intel_crtc->plane) | |
6020 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
6021 | else | |
6022 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
6023 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
6024 | intel_ring_emit(ring, MI_NOOP); | |
6025 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | | |
6026 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
6027 | intel_ring_emit(ring, fb->pitches[0]); | |
6028 | intel_ring_emit(ring, obj->gtt_offset + offset); | |
6029 | intel_ring_emit(ring, MI_NOOP); | |
6030 | ||
6031 | intel_ring_advance(ring); | |
83d4092b CW |
6032 | return 0; |
6033 | ||
6034 | err_unpin: | |
6035 | intel_unpin_fb_obj(obj); | |
6036 | err: | |
8c9f3aaf JB |
6037 | return ret; |
6038 | } | |
6039 | ||
6040 | static int intel_gen4_queue_flip(struct drm_device *dev, | |
6041 | struct drm_crtc *crtc, | |
6042 | struct drm_framebuffer *fb, | |
6043 | struct drm_i915_gem_object *obj) | |
6044 | { | |
6045 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6046 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6047 | uint32_t pf, pipesrc; | |
6d90c952 | 6048 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
6049 | int ret; |
6050 | ||
6d90c952 | 6051 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 6052 | if (ret) |
83d4092b | 6053 | goto err; |
8c9f3aaf | 6054 | |
6d90c952 | 6055 | ret = intel_ring_begin(ring, 4); |
8c9f3aaf | 6056 | if (ret) |
83d4092b | 6057 | goto err_unpin; |
8c9f3aaf JB |
6058 | |
6059 | /* i965+ uses the linear or tiled offsets from the | |
6060 | * Display Registers (which do not change across a page-flip) | |
6061 | * so we need only reprogram the base address. | |
6062 | */ | |
6d90c952 DV |
6063 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
6064 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
6065 | intel_ring_emit(ring, fb->pitches[0]); | |
6066 | intel_ring_emit(ring, obj->gtt_offset | obj->tiling_mode); | |
8c9f3aaf JB |
6067 | |
6068 | /* XXX Enabling the panel-fitter across page-flip is so far | |
6069 | * untested on non-native modes, so ignore it for now. | |
6070 | * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE; | |
6071 | */ | |
6072 | pf = 0; | |
6073 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; | |
6d90c952 DV |
6074 | intel_ring_emit(ring, pf | pipesrc); |
6075 | intel_ring_advance(ring); | |
83d4092b CW |
6076 | return 0; |
6077 | ||
6078 | err_unpin: | |
6079 | intel_unpin_fb_obj(obj); | |
6080 | err: | |
8c9f3aaf JB |
6081 | return ret; |
6082 | } | |
6083 | ||
6084 | static int intel_gen6_queue_flip(struct drm_device *dev, | |
6085 | struct drm_crtc *crtc, | |
6086 | struct drm_framebuffer *fb, | |
6087 | struct drm_i915_gem_object *obj) | |
6088 | { | |
6089 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6090 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6d90c952 | 6091 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
6092 | uint32_t pf, pipesrc; |
6093 | int ret; | |
6094 | ||
6d90c952 | 6095 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 6096 | if (ret) |
83d4092b | 6097 | goto err; |
8c9f3aaf | 6098 | |
6d90c952 | 6099 | ret = intel_ring_begin(ring, 4); |
8c9f3aaf | 6100 | if (ret) |
83d4092b | 6101 | goto err_unpin; |
8c9f3aaf | 6102 | |
6d90c952 DV |
6103 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
6104 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
6105 | intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode); | |
6106 | intel_ring_emit(ring, obj->gtt_offset); | |
8c9f3aaf | 6107 | |
dc257cf1 DV |
6108 | /* Contrary to the suggestions in the documentation, |
6109 | * "Enable Panel Fitter" does not seem to be required when page | |
6110 | * flipping with a non-native mode, and worse causes a normal | |
6111 | * modeset to fail. | |
6112 | * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE; | |
6113 | */ | |
6114 | pf = 0; | |
8c9f3aaf | 6115 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; |
6d90c952 DV |
6116 | intel_ring_emit(ring, pf | pipesrc); |
6117 | intel_ring_advance(ring); | |
83d4092b CW |
6118 | return 0; |
6119 | ||
6120 | err_unpin: | |
6121 | intel_unpin_fb_obj(obj); | |
6122 | err: | |
8c9f3aaf JB |
6123 | return ret; |
6124 | } | |
6125 | ||
7c9017e5 JB |
6126 | /* |
6127 | * On gen7 we currently use the blit ring because (in early silicon at least) | |
6128 | * the render ring doesn't give us interrpts for page flip completion, which | |
6129 | * means clients will hang after the first flip is queued. Fortunately the | |
6130 | * blit ring generates interrupts properly, so use it instead. | |
6131 | */ | |
6132 | static int intel_gen7_queue_flip(struct drm_device *dev, | |
6133 | struct drm_crtc *crtc, | |
6134 | struct drm_framebuffer *fb, | |
6135 | struct drm_i915_gem_object *obj) | |
6136 | { | |
6137 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6138 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6139 | struct intel_ring_buffer *ring = &dev_priv->ring[BCS]; | |
6140 | int ret; | |
6141 | ||
6142 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); | |
6143 | if (ret) | |
83d4092b | 6144 | goto err; |
7c9017e5 JB |
6145 | |
6146 | ret = intel_ring_begin(ring, 4); | |
6147 | if (ret) | |
83d4092b | 6148 | goto err_unpin; |
7c9017e5 JB |
6149 | |
6150 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | (intel_crtc->plane << 19)); | |
01f2c773 | 6151 | intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode)); |
7c9017e5 JB |
6152 | intel_ring_emit(ring, (obj->gtt_offset)); |
6153 | intel_ring_emit(ring, (MI_NOOP)); | |
6154 | intel_ring_advance(ring); | |
83d4092b CW |
6155 | return 0; |
6156 | ||
6157 | err_unpin: | |
6158 | intel_unpin_fb_obj(obj); | |
6159 | err: | |
7c9017e5 JB |
6160 | return ret; |
6161 | } | |
6162 | ||
8c9f3aaf JB |
6163 | static int intel_default_queue_flip(struct drm_device *dev, |
6164 | struct drm_crtc *crtc, | |
6165 | struct drm_framebuffer *fb, | |
6166 | struct drm_i915_gem_object *obj) | |
6167 | { | |
6168 | return -ENODEV; | |
6169 | } | |
6170 | ||
6b95a207 KH |
6171 | static int intel_crtc_page_flip(struct drm_crtc *crtc, |
6172 | struct drm_framebuffer *fb, | |
6173 | struct drm_pending_vblank_event *event) | |
6174 | { | |
6175 | struct drm_device *dev = crtc->dev; | |
6176 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6177 | struct intel_framebuffer *intel_fb; | |
05394f39 | 6178 | struct drm_i915_gem_object *obj; |
6b95a207 KH |
6179 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6180 | struct intel_unpin_work *work; | |
8c9f3aaf | 6181 | unsigned long flags; |
52e68630 | 6182 | int ret; |
6b95a207 KH |
6183 | |
6184 | work = kzalloc(sizeof *work, GFP_KERNEL); | |
6185 | if (work == NULL) | |
6186 | return -ENOMEM; | |
6187 | ||
6b95a207 KH |
6188 | work->event = event; |
6189 | work->dev = crtc->dev; | |
6190 | intel_fb = to_intel_framebuffer(crtc->fb); | |
b1b87f6b | 6191 | work->old_fb_obj = intel_fb->obj; |
6b95a207 KH |
6192 | INIT_WORK(&work->work, intel_unpin_work_fn); |
6193 | ||
7317c75e JB |
6194 | ret = drm_vblank_get(dev, intel_crtc->pipe); |
6195 | if (ret) | |
6196 | goto free_work; | |
6197 | ||
6b95a207 KH |
6198 | /* We borrow the event spin lock for protecting unpin_work */ |
6199 | spin_lock_irqsave(&dev->event_lock, flags); | |
6200 | if (intel_crtc->unpin_work) { | |
6201 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6202 | kfree(work); | |
7317c75e | 6203 | drm_vblank_put(dev, intel_crtc->pipe); |
468f0b44 CW |
6204 | |
6205 | DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); | |
6b95a207 KH |
6206 | return -EBUSY; |
6207 | } | |
6208 | intel_crtc->unpin_work = work; | |
6209 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6210 | ||
6211 | intel_fb = to_intel_framebuffer(fb); | |
6212 | obj = intel_fb->obj; | |
6213 | ||
468f0b44 | 6214 | mutex_lock(&dev->struct_mutex); |
6b95a207 | 6215 | |
75dfca80 | 6216 | /* Reference the objects for the scheduled work. */ |
05394f39 CW |
6217 | drm_gem_object_reference(&work->old_fb_obj->base); |
6218 | drm_gem_object_reference(&obj->base); | |
6b95a207 KH |
6219 | |
6220 | crtc->fb = fb; | |
96b099fd | 6221 | |
e1f99ce6 | 6222 | work->pending_flip_obj = obj; |
e1f99ce6 | 6223 | |
4e5359cd SF |
6224 | work->enable_stall_check = true; |
6225 | ||
e1f99ce6 CW |
6226 | /* Block clients from rendering to the new back buffer until |
6227 | * the flip occurs and the object is no longer visible. | |
6228 | */ | |
05394f39 | 6229 | atomic_add(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); |
e1f99ce6 | 6230 | |
8c9f3aaf JB |
6231 | ret = dev_priv->display.queue_flip(dev, crtc, fb, obj); |
6232 | if (ret) | |
6233 | goto cleanup_pending; | |
6b95a207 | 6234 | |
7782de3b | 6235 | intel_disable_fbc(dev); |
acb87dfb | 6236 | intel_mark_busy(dev, obj); |
6b95a207 KH |
6237 | mutex_unlock(&dev->struct_mutex); |
6238 | ||
e5510fac JB |
6239 | trace_i915_flip_request(intel_crtc->plane, obj); |
6240 | ||
6b95a207 | 6241 | return 0; |
96b099fd | 6242 | |
8c9f3aaf JB |
6243 | cleanup_pending: |
6244 | atomic_sub(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); | |
05394f39 CW |
6245 | drm_gem_object_unreference(&work->old_fb_obj->base); |
6246 | drm_gem_object_unreference(&obj->base); | |
96b099fd CW |
6247 | mutex_unlock(&dev->struct_mutex); |
6248 | ||
6249 | spin_lock_irqsave(&dev->event_lock, flags); | |
6250 | intel_crtc->unpin_work = NULL; | |
6251 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6252 | ||
7317c75e JB |
6253 | drm_vblank_put(dev, intel_crtc->pipe); |
6254 | free_work: | |
96b099fd CW |
6255 | kfree(work); |
6256 | ||
6257 | return ret; | |
6b95a207 KH |
6258 | } |
6259 | ||
47f1c6c9 CW |
6260 | static void intel_sanitize_modesetting(struct drm_device *dev, |
6261 | int pipe, int plane) | |
6262 | { | |
6263 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6264 | u32 reg, val; | |
a9dcf84b | 6265 | int i; |
47f1c6c9 | 6266 | |
f47166d2 | 6267 | /* Clear any frame start delays used for debugging left by the BIOS */ |
a9dcf84b DV |
6268 | for_each_pipe(i) { |
6269 | reg = PIPECONF(i); | |
f47166d2 CW |
6270 | I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK); |
6271 | } | |
6272 | ||
47f1c6c9 CW |
6273 | if (HAS_PCH_SPLIT(dev)) |
6274 | return; | |
6275 | ||
6276 | /* Who knows what state these registers were left in by the BIOS or | |
6277 | * grub? | |
6278 | * | |
6279 | * If we leave the registers in a conflicting state (e.g. with the | |
6280 | * display plane reading from the other pipe than the one we intend | |
6281 | * to use) then when we attempt to teardown the active mode, we will | |
6282 | * not disable the pipes and planes in the correct order -- leaving | |
6283 | * a plane reading from a disabled pipe and possibly leading to | |
6284 | * undefined behaviour. | |
6285 | */ | |
6286 | ||
6287 | reg = DSPCNTR(plane); | |
6288 | val = I915_READ(reg); | |
6289 | ||
6290 | if ((val & DISPLAY_PLANE_ENABLE) == 0) | |
6291 | return; | |
6292 | if (!!(val & DISPPLANE_SEL_PIPE_MASK) == pipe) | |
6293 | return; | |
6294 | ||
6295 | /* This display plane is active and attached to the other CPU pipe. */ | |
6296 | pipe = !pipe; | |
6297 | ||
6298 | /* Disable the plane and wait for it to stop reading from the pipe. */ | |
b24e7179 JB |
6299 | intel_disable_plane(dev_priv, plane, pipe); |
6300 | intel_disable_pipe(dev_priv, pipe); | |
47f1c6c9 | 6301 | } |
79e53945 | 6302 | |
f6e5b160 CW |
6303 | static void intel_crtc_reset(struct drm_crtc *crtc) |
6304 | { | |
6305 | struct drm_device *dev = crtc->dev; | |
6306 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6307 | ||
6308 | /* Reset flags back to the 'unknown' status so that they | |
6309 | * will be correctly set on the initial modeset. | |
6310 | */ | |
6311 | intel_crtc->dpms_mode = -1; | |
6312 | ||
6313 | /* We need to fix up any BIOS configuration that conflicts with | |
6314 | * our expectations. | |
6315 | */ | |
6316 | intel_sanitize_modesetting(dev, intel_crtc->pipe, intel_crtc->plane); | |
6317 | } | |
6318 | ||
6319 | static struct drm_crtc_helper_funcs intel_helper_funcs = { | |
6320 | .dpms = intel_crtc_dpms, | |
6321 | .mode_fixup = intel_crtc_mode_fixup, | |
6322 | .mode_set = intel_crtc_mode_set, | |
6323 | .mode_set_base = intel_pipe_set_base, | |
6324 | .mode_set_base_atomic = intel_pipe_set_base_atomic, | |
6325 | .load_lut = intel_crtc_load_lut, | |
6326 | .disable = intel_crtc_disable, | |
6327 | }; | |
6328 | ||
6329 | static const struct drm_crtc_funcs intel_crtc_funcs = { | |
6330 | .reset = intel_crtc_reset, | |
6331 | .cursor_set = intel_crtc_cursor_set, | |
6332 | .cursor_move = intel_crtc_cursor_move, | |
6333 | .gamma_set = intel_crtc_gamma_set, | |
6334 | .set_config = drm_crtc_helper_set_config, | |
6335 | .destroy = intel_crtc_destroy, | |
6336 | .page_flip = intel_crtc_page_flip, | |
6337 | }; | |
6338 | ||
ee7b9f93 JB |
6339 | static void intel_pch_pll_init(struct drm_device *dev) |
6340 | { | |
6341 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6342 | int i; | |
6343 | ||
6344 | if (dev_priv->num_pch_pll == 0) { | |
6345 | DRM_DEBUG_KMS("No PCH PLLs on this hardware, skipping initialisation\n"); | |
6346 | return; | |
6347 | } | |
6348 | ||
6349 | for (i = 0; i < dev_priv->num_pch_pll; i++) { | |
6350 | dev_priv->pch_plls[i].pll_reg = _PCH_DPLL(i); | |
6351 | dev_priv->pch_plls[i].fp0_reg = _PCH_FP0(i); | |
6352 | dev_priv->pch_plls[i].fp1_reg = _PCH_FP1(i); | |
6353 | } | |
6354 | } | |
6355 | ||
b358d0a6 | 6356 | static void intel_crtc_init(struct drm_device *dev, int pipe) |
79e53945 | 6357 | { |
22fd0fab | 6358 | drm_i915_private_t *dev_priv = dev->dev_private; |
79e53945 JB |
6359 | struct intel_crtc *intel_crtc; |
6360 | int i; | |
6361 | ||
6362 | intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL); | |
6363 | if (intel_crtc == NULL) | |
6364 | return; | |
6365 | ||
6366 | drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs); | |
6367 | ||
6368 | drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256); | |
79e53945 JB |
6369 | for (i = 0; i < 256; i++) { |
6370 | intel_crtc->lut_r[i] = i; | |
6371 | intel_crtc->lut_g[i] = i; | |
6372 | intel_crtc->lut_b[i] = i; | |
6373 | } | |
6374 | ||
80824003 JB |
6375 | /* Swap pipes & planes for FBC on pre-965 */ |
6376 | intel_crtc->pipe = pipe; | |
6377 | intel_crtc->plane = pipe; | |
e2e767ab | 6378 | if (IS_MOBILE(dev) && IS_GEN3(dev)) { |
28c97730 | 6379 | DRM_DEBUG_KMS("swapping pipes & planes for FBC\n"); |
e2e767ab | 6380 | intel_crtc->plane = !pipe; |
80824003 JB |
6381 | } |
6382 | ||
22fd0fab JB |
6383 | BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) || |
6384 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL); | |
6385 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base; | |
6386 | dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base; | |
6387 | ||
5d1d0cc8 | 6388 | intel_crtc_reset(&intel_crtc->base); |
04dbff52 | 6389 | intel_crtc->active = true; /* force the pipe off on setup_init_config */ |
5a354204 | 6390 | intel_crtc->bpp = 24; /* default for pre-Ironlake */ |
7e7d76c3 JB |
6391 | |
6392 | if (HAS_PCH_SPLIT(dev)) { | |
6393 | intel_helper_funcs.prepare = ironlake_crtc_prepare; | |
6394 | intel_helper_funcs.commit = ironlake_crtc_commit; | |
6395 | } else { | |
6396 | intel_helper_funcs.prepare = i9xx_crtc_prepare; | |
6397 | intel_helper_funcs.commit = i9xx_crtc_commit; | |
6398 | } | |
6399 | ||
79e53945 JB |
6400 | drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); |
6401 | ||
652c393a JB |
6402 | intel_crtc->busy = false; |
6403 | ||
6404 | setup_timer(&intel_crtc->idle_timer, intel_crtc_idle_timer, | |
6405 | (unsigned long)intel_crtc); | |
79e53945 JB |
6406 | } |
6407 | ||
08d7b3d1 | 6408 | int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, |
05394f39 | 6409 | struct drm_file *file) |
08d7b3d1 | 6410 | { |
08d7b3d1 | 6411 | struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; |
c05422d5 DV |
6412 | struct drm_mode_object *drmmode_obj; |
6413 | struct intel_crtc *crtc; | |
08d7b3d1 | 6414 | |
1cff8f6b DV |
6415 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
6416 | return -ENODEV; | |
08d7b3d1 | 6417 | |
c05422d5 DV |
6418 | drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id, |
6419 | DRM_MODE_OBJECT_CRTC); | |
08d7b3d1 | 6420 | |
c05422d5 | 6421 | if (!drmmode_obj) { |
08d7b3d1 CW |
6422 | DRM_ERROR("no such CRTC id\n"); |
6423 | return -EINVAL; | |
6424 | } | |
6425 | ||
c05422d5 DV |
6426 | crtc = to_intel_crtc(obj_to_crtc(drmmode_obj)); |
6427 | pipe_from_crtc_id->pipe = crtc->pipe; | |
08d7b3d1 | 6428 | |
c05422d5 | 6429 | return 0; |
08d7b3d1 CW |
6430 | } |
6431 | ||
c5e4df33 | 6432 | static int intel_encoder_clones(struct drm_device *dev, int type_mask) |
79e53945 | 6433 | { |
4ef69c7a | 6434 | struct intel_encoder *encoder; |
79e53945 | 6435 | int index_mask = 0; |
79e53945 JB |
6436 | int entry = 0; |
6437 | ||
4ef69c7a CW |
6438 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
6439 | if (type_mask & encoder->clone_mask) | |
79e53945 JB |
6440 | index_mask |= (1 << entry); |
6441 | entry++; | |
6442 | } | |
4ef69c7a | 6443 | |
79e53945 JB |
6444 | return index_mask; |
6445 | } | |
6446 | ||
4d302442 CW |
6447 | static bool has_edp_a(struct drm_device *dev) |
6448 | { | |
6449 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6450 | ||
6451 | if (!IS_MOBILE(dev)) | |
6452 | return false; | |
6453 | ||
6454 | if ((I915_READ(DP_A) & DP_DETECTED) == 0) | |
6455 | return false; | |
6456 | ||
6457 | if (IS_GEN5(dev) && | |
6458 | (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE)) | |
6459 | return false; | |
6460 | ||
6461 | return true; | |
6462 | } | |
6463 | ||
79e53945 JB |
6464 | static void intel_setup_outputs(struct drm_device *dev) |
6465 | { | |
725e30ad | 6466 | struct drm_i915_private *dev_priv = dev->dev_private; |
4ef69c7a | 6467 | struct intel_encoder *encoder; |
cb0953d7 | 6468 | bool dpd_is_edp = false; |
f3cfcba6 | 6469 | bool has_lvds; |
79e53945 | 6470 | |
f3cfcba6 | 6471 | has_lvds = intel_lvds_init(dev); |
c5d1b51d CW |
6472 | if (!has_lvds && !HAS_PCH_SPLIT(dev)) { |
6473 | /* disable the panel fitter on everything but LVDS */ | |
6474 | I915_WRITE(PFIT_CONTROL, 0); | |
6475 | } | |
79e53945 | 6476 | |
bad720ff | 6477 | if (HAS_PCH_SPLIT(dev)) { |
cb0953d7 | 6478 | dpd_is_edp = intel_dpd_is_edp(dev); |
30ad48b7 | 6479 | |
4d302442 | 6480 | if (has_edp_a(dev)) |
32f9d658 ZW |
6481 | intel_dp_init(dev, DP_A); |
6482 | ||
cb0953d7 AJ |
6483 | if (dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED)) |
6484 | intel_dp_init(dev, PCH_DP_D); | |
6485 | } | |
6486 | ||
6487 | intel_crt_init(dev); | |
6488 | ||
0e72a5b5 ED |
6489 | if (IS_HASWELL(dev)) { |
6490 | int found; | |
6491 | ||
6492 | /* Haswell uses DDI functions to detect digital outputs */ | |
6493 | found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED; | |
6494 | /* DDI A only supports eDP */ | |
6495 | if (found) | |
6496 | intel_ddi_init(dev, PORT_A); | |
6497 | ||
6498 | /* DDI B, C and D detection is indicated by the SFUSE_STRAP | |
6499 | * register */ | |
6500 | found = I915_READ(SFUSE_STRAP); | |
6501 | ||
6502 | if (found & SFUSE_STRAP_DDIB_DETECTED) | |
6503 | intel_ddi_init(dev, PORT_B); | |
6504 | if (found & SFUSE_STRAP_DDIC_DETECTED) | |
6505 | intel_ddi_init(dev, PORT_C); | |
6506 | if (found & SFUSE_STRAP_DDID_DETECTED) | |
6507 | intel_ddi_init(dev, PORT_D); | |
6508 | } else if (HAS_PCH_SPLIT(dev)) { | |
cb0953d7 AJ |
6509 | int found; |
6510 | ||
30ad48b7 | 6511 | if (I915_READ(HDMIB) & PORT_DETECTED) { |
461ed3ca | 6512 | /* PCH SDVOB multiplex with HDMIB */ |
eef4eacb | 6513 | found = intel_sdvo_init(dev, PCH_SDVOB, true); |
30ad48b7 ZW |
6514 | if (!found) |
6515 | intel_hdmi_init(dev, HDMIB); | |
5eb08b69 ZW |
6516 | if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) |
6517 | intel_dp_init(dev, PCH_DP_B); | |
30ad48b7 ZW |
6518 | } |
6519 | ||
6520 | if (I915_READ(HDMIC) & PORT_DETECTED) | |
6521 | intel_hdmi_init(dev, HDMIC); | |
6522 | ||
6523 | if (I915_READ(HDMID) & PORT_DETECTED) | |
6524 | intel_hdmi_init(dev, HDMID); | |
6525 | ||
5eb08b69 ZW |
6526 | if (I915_READ(PCH_DP_C) & DP_DETECTED) |
6527 | intel_dp_init(dev, PCH_DP_C); | |
6528 | ||
cb0953d7 | 6529 | if (!dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED)) |
5eb08b69 ZW |
6530 | intel_dp_init(dev, PCH_DP_D); |
6531 | ||
103a196f | 6532 | } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) { |
27185ae1 | 6533 | bool found = false; |
7d57382e | 6534 | |
725e30ad | 6535 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 6536 | DRM_DEBUG_KMS("probing SDVOB\n"); |
eef4eacb | 6537 | found = intel_sdvo_init(dev, SDVOB, true); |
b01f2c3a JB |
6538 | if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) { |
6539 | DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); | |
725e30ad | 6540 | intel_hdmi_init(dev, SDVOB); |
b01f2c3a | 6541 | } |
27185ae1 | 6542 | |
b01f2c3a JB |
6543 | if (!found && SUPPORTS_INTEGRATED_DP(dev)) { |
6544 | DRM_DEBUG_KMS("probing DP_B\n"); | |
a4fc5ed6 | 6545 | intel_dp_init(dev, DP_B); |
b01f2c3a | 6546 | } |
725e30ad | 6547 | } |
13520b05 KH |
6548 | |
6549 | /* Before G4X SDVOC doesn't have its own detect register */ | |
13520b05 | 6550 | |
b01f2c3a JB |
6551 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
6552 | DRM_DEBUG_KMS("probing SDVOC\n"); | |
eef4eacb | 6553 | found = intel_sdvo_init(dev, SDVOC, false); |
b01f2c3a | 6554 | } |
27185ae1 ML |
6555 | |
6556 | if (!found && (I915_READ(SDVOC) & SDVO_DETECTED)) { | |
6557 | ||
b01f2c3a JB |
6558 | if (SUPPORTS_INTEGRATED_HDMI(dev)) { |
6559 | DRM_DEBUG_KMS("probing HDMI on SDVOC\n"); | |
725e30ad | 6560 | intel_hdmi_init(dev, SDVOC); |
b01f2c3a JB |
6561 | } |
6562 | if (SUPPORTS_INTEGRATED_DP(dev)) { | |
6563 | DRM_DEBUG_KMS("probing DP_C\n"); | |
a4fc5ed6 | 6564 | intel_dp_init(dev, DP_C); |
b01f2c3a | 6565 | } |
725e30ad | 6566 | } |
27185ae1 | 6567 | |
b01f2c3a JB |
6568 | if (SUPPORTS_INTEGRATED_DP(dev) && |
6569 | (I915_READ(DP_D) & DP_DETECTED)) { | |
6570 | DRM_DEBUG_KMS("probing DP_D\n"); | |
a4fc5ed6 | 6571 | intel_dp_init(dev, DP_D); |
b01f2c3a | 6572 | } |
bad720ff | 6573 | } else if (IS_GEN2(dev)) |
79e53945 JB |
6574 | intel_dvo_init(dev); |
6575 | ||
103a196f | 6576 | if (SUPPORTS_TV(dev)) |
79e53945 JB |
6577 | intel_tv_init(dev); |
6578 | ||
4ef69c7a CW |
6579 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
6580 | encoder->base.possible_crtcs = encoder->crtc_mask; | |
6581 | encoder->base.possible_clones = | |
6582 | intel_encoder_clones(dev, encoder->clone_mask); | |
79e53945 | 6583 | } |
47356eb6 | 6584 | |
2c7111db CW |
6585 | /* disable all the possible outputs/crtcs before entering KMS mode */ |
6586 | drm_helper_disable_unused_functions(dev); | |
9fb526db KP |
6587 | |
6588 | if (HAS_PCH_SPLIT(dev)) | |
6589 | ironlake_init_pch_refclk(dev); | |
79e53945 JB |
6590 | } |
6591 | ||
6592 | static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb) | |
6593 | { | |
6594 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
79e53945 JB |
6595 | |
6596 | drm_framebuffer_cleanup(fb); | |
05394f39 | 6597 | drm_gem_object_unreference_unlocked(&intel_fb->obj->base); |
79e53945 JB |
6598 | |
6599 | kfree(intel_fb); | |
6600 | } | |
6601 | ||
6602 | static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb, | |
05394f39 | 6603 | struct drm_file *file, |
79e53945 JB |
6604 | unsigned int *handle) |
6605 | { | |
6606 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
05394f39 | 6607 | struct drm_i915_gem_object *obj = intel_fb->obj; |
79e53945 | 6608 | |
05394f39 | 6609 | return drm_gem_handle_create(file, &obj->base, handle); |
79e53945 JB |
6610 | } |
6611 | ||
6612 | static const struct drm_framebuffer_funcs intel_fb_funcs = { | |
6613 | .destroy = intel_user_framebuffer_destroy, | |
6614 | .create_handle = intel_user_framebuffer_create_handle, | |
6615 | }; | |
6616 | ||
38651674 DA |
6617 | int intel_framebuffer_init(struct drm_device *dev, |
6618 | struct intel_framebuffer *intel_fb, | |
308e5bcb | 6619 | struct drm_mode_fb_cmd2 *mode_cmd, |
05394f39 | 6620 | struct drm_i915_gem_object *obj) |
79e53945 | 6621 | { |
79e53945 JB |
6622 | int ret; |
6623 | ||
05394f39 | 6624 | if (obj->tiling_mode == I915_TILING_Y) |
57cd6508 CW |
6625 | return -EINVAL; |
6626 | ||
308e5bcb | 6627 | if (mode_cmd->pitches[0] & 63) |
57cd6508 CW |
6628 | return -EINVAL; |
6629 | ||
308e5bcb | 6630 | switch (mode_cmd->pixel_format) { |
04b3924d VS |
6631 | case DRM_FORMAT_RGB332: |
6632 | case DRM_FORMAT_RGB565: | |
6633 | case DRM_FORMAT_XRGB8888: | |
b250da79 | 6634 | case DRM_FORMAT_XBGR8888: |
04b3924d VS |
6635 | case DRM_FORMAT_ARGB8888: |
6636 | case DRM_FORMAT_XRGB2101010: | |
6637 | case DRM_FORMAT_ARGB2101010: | |
308e5bcb | 6638 | /* RGB formats are common across chipsets */ |
b5626747 | 6639 | break; |
04b3924d VS |
6640 | case DRM_FORMAT_YUYV: |
6641 | case DRM_FORMAT_UYVY: | |
6642 | case DRM_FORMAT_YVYU: | |
6643 | case DRM_FORMAT_VYUY: | |
57cd6508 CW |
6644 | break; |
6645 | default: | |
aca25848 ED |
6646 | DRM_DEBUG_KMS("unsupported pixel format %u\n", |
6647 | mode_cmd->pixel_format); | |
57cd6508 CW |
6648 | return -EINVAL; |
6649 | } | |
6650 | ||
79e53945 JB |
6651 | ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); |
6652 | if (ret) { | |
6653 | DRM_ERROR("framebuffer init failed %d\n", ret); | |
6654 | return ret; | |
6655 | } | |
6656 | ||
6657 | drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); | |
79e53945 | 6658 | intel_fb->obj = obj; |
79e53945 JB |
6659 | return 0; |
6660 | } | |
6661 | ||
79e53945 JB |
6662 | static struct drm_framebuffer * |
6663 | intel_user_framebuffer_create(struct drm_device *dev, | |
6664 | struct drm_file *filp, | |
308e5bcb | 6665 | struct drm_mode_fb_cmd2 *mode_cmd) |
79e53945 | 6666 | { |
05394f39 | 6667 | struct drm_i915_gem_object *obj; |
79e53945 | 6668 | |
308e5bcb JB |
6669 | obj = to_intel_bo(drm_gem_object_lookup(dev, filp, |
6670 | mode_cmd->handles[0])); | |
c8725226 | 6671 | if (&obj->base == NULL) |
cce13ff7 | 6672 | return ERR_PTR(-ENOENT); |
79e53945 | 6673 | |
d2dff872 | 6674 | return intel_framebuffer_create(dev, mode_cmd, obj); |
79e53945 JB |
6675 | } |
6676 | ||
79e53945 | 6677 | static const struct drm_mode_config_funcs intel_mode_funcs = { |
79e53945 | 6678 | .fb_create = intel_user_framebuffer_create, |
eb1f8e4f | 6679 | .output_poll_changed = intel_fb_output_poll_changed, |
79e53945 JB |
6680 | }; |
6681 | ||
e70236a8 JB |
6682 | /* Set up chip specific display functions */ |
6683 | static void intel_init_display(struct drm_device *dev) | |
6684 | { | |
6685 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6686 | ||
6687 | /* We always want a DPMS function */ | |
f564048e | 6688 | if (HAS_PCH_SPLIT(dev)) { |
f2b115e6 | 6689 | dev_priv->display.dpms = ironlake_crtc_dpms; |
f564048e | 6690 | dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set; |
ee7b9f93 | 6691 | dev_priv->display.off = ironlake_crtc_off; |
17638cd6 | 6692 | dev_priv->display.update_plane = ironlake_update_plane; |
f564048e | 6693 | } else { |
e70236a8 | 6694 | dev_priv->display.dpms = i9xx_crtc_dpms; |
f564048e | 6695 | dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set; |
ee7b9f93 | 6696 | dev_priv->display.off = i9xx_crtc_off; |
17638cd6 | 6697 | dev_priv->display.update_plane = i9xx_update_plane; |
f564048e | 6698 | } |
e70236a8 | 6699 | |
e70236a8 | 6700 | /* Returns the core display clock speed */ |
25eb05fc JB |
6701 | if (IS_VALLEYVIEW(dev)) |
6702 | dev_priv->display.get_display_clock_speed = | |
6703 | valleyview_get_display_clock_speed; | |
6704 | else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev))) | |
e70236a8 JB |
6705 | dev_priv->display.get_display_clock_speed = |
6706 | i945_get_display_clock_speed; | |
6707 | else if (IS_I915G(dev)) | |
6708 | dev_priv->display.get_display_clock_speed = | |
6709 | i915_get_display_clock_speed; | |
f2b115e6 | 6710 | else if (IS_I945GM(dev) || IS_845G(dev) || IS_PINEVIEW_M(dev)) |
e70236a8 JB |
6711 | dev_priv->display.get_display_clock_speed = |
6712 | i9xx_misc_get_display_clock_speed; | |
6713 | else if (IS_I915GM(dev)) | |
6714 | dev_priv->display.get_display_clock_speed = | |
6715 | i915gm_get_display_clock_speed; | |
6716 | else if (IS_I865G(dev)) | |
6717 | dev_priv->display.get_display_clock_speed = | |
6718 | i865_get_display_clock_speed; | |
f0f8a9ce | 6719 | else if (IS_I85X(dev)) |
e70236a8 JB |
6720 | dev_priv->display.get_display_clock_speed = |
6721 | i855_get_display_clock_speed; | |
6722 | else /* 852, 830 */ | |
6723 | dev_priv->display.get_display_clock_speed = | |
6724 | i830_get_display_clock_speed; | |
6725 | ||
7f8a8569 | 6726 | if (HAS_PCH_SPLIT(dev)) { |
f00a3ddf | 6727 | if (IS_GEN5(dev)) { |
674cf967 | 6728 | dev_priv->display.fdi_link_train = ironlake_fdi_link_train; |
e0dac65e | 6729 | dev_priv->display.write_eld = ironlake_write_eld; |
1398261a | 6730 | } else if (IS_GEN6(dev)) { |
674cf967 | 6731 | dev_priv->display.fdi_link_train = gen6_fdi_link_train; |
e0dac65e | 6732 | dev_priv->display.write_eld = ironlake_write_eld; |
357555c0 JB |
6733 | } else if (IS_IVYBRIDGE(dev)) { |
6734 | /* FIXME: detect B0+ stepping and use auto training */ | |
6735 | dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train; | |
e0dac65e | 6736 | dev_priv->display.write_eld = ironlake_write_eld; |
c82e4d26 ED |
6737 | } else if (IS_HASWELL(dev)) { |
6738 | dev_priv->display.fdi_link_train = hsw_fdi_link_train; | |
4abb3c8c | 6739 | dev_priv->display.write_eld = ironlake_write_eld; |
7f8a8569 ZW |
6740 | } else |
6741 | dev_priv->display.update_wm = NULL; | |
ceb04246 | 6742 | } else if (IS_VALLEYVIEW(dev)) { |
575155a9 JB |
6743 | dev_priv->display.force_wake_get = vlv_force_wake_get; |
6744 | dev_priv->display.force_wake_put = vlv_force_wake_put; | |
6067aaea | 6745 | } else if (IS_G4X(dev)) { |
e0dac65e | 6746 | dev_priv->display.write_eld = g4x_write_eld; |
e70236a8 | 6747 | } |
8c9f3aaf JB |
6748 | |
6749 | /* Default just returns -ENODEV to indicate unsupported */ | |
6750 | dev_priv->display.queue_flip = intel_default_queue_flip; | |
6751 | ||
6752 | switch (INTEL_INFO(dev)->gen) { | |
6753 | case 2: | |
6754 | dev_priv->display.queue_flip = intel_gen2_queue_flip; | |
6755 | break; | |
6756 | ||
6757 | case 3: | |
6758 | dev_priv->display.queue_flip = intel_gen3_queue_flip; | |
6759 | break; | |
6760 | ||
6761 | case 4: | |
6762 | case 5: | |
6763 | dev_priv->display.queue_flip = intel_gen4_queue_flip; | |
6764 | break; | |
6765 | ||
6766 | case 6: | |
6767 | dev_priv->display.queue_flip = intel_gen6_queue_flip; | |
6768 | break; | |
7c9017e5 JB |
6769 | case 7: |
6770 | dev_priv->display.queue_flip = intel_gen7_queue_flip; | |
6771 | break; | |
8c9f3aaf | 6772 | } |
e70236a8 JB |
6773 | } |
6774 | ||
b690e96c JB |
6775 | /* |
6776 | * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend, | |
6777 | * resume, or other times. This quirk makes sure that's the case for | |
6778 | * affected systems. | |
6779 | */ | |
0206e353 | 6780 | static void quirk_pipea_force(struct drm_device *dev) |
b690e96c JB |
6781 | { |
6782 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6783 | ||
6784 | dev_priv->quirks |= QUIRK_PIPEA_FORCE; | |
bc0daf48 | 6785 | DRM_INFO("applying pipe a force quirk\n"); |
b690e96c JB |
6786 | } |
6787 | ||
435793df KP |
6788 | /* |
6789 | * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason | |
6790 | */ | |
6791 | static void quirk_ssc_force_disable(struct drm_device *dev) | |
6792 | { | |
6793 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6794 | dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE; | |
bc0daf48 | 6795 | DRM_INFO("applying lvds SSC disable quirk\n"); |
435793df KP |
6796 | } |
6797 | ||
4dca20ef | 6798 | /* |
5a15ab5b CE |
6799 | * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight |
6800 | * brightness value | |
4dca20ef CE |
6801 | */ |
6802 | static void quirk_invert_brightness(struct drm_device *dev) | |
6803 | { | |
6804 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6805 | dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS; | |
bc0daf48 | 6806 | DRM_INFO("applying inverted panel brightness quirk\n"); |
435793df KP |
6807 | } |
6808 | ||
b690e96c JB |
6809 | struct intel_quirk { |
6810 | int device; | |
6811 | int subsystem_vendor; | |
6812 | int subsystem_device; | |
6813 | void (*hook)(struct drm_device *dev); | |
6814 | }; | |
6815 | ||
c43b5634 | 6816 | static struct intel_quirk intel_quirks[] = { |
b690e96c | 6817 | /* HP Mini needs pipe A force quirk (LP: #322104) */ |
0206e353 | 6818 | { 0x27ae, 0x103c, 0x361a, quirk_pipea_force }, |
b690e96c JB |
6819 | |
6820 | /* Thinkpad R31 needs pipe A force quirk */ | |
6821 | { 0x3577, 0x1014, 0x0505, quirk_pipea_force }, | |
6822 | /* Toshiba Protege R-205, S-209 needs pipe A force quirk */ | |
6823 | { 0x2592, 0x1179, 0x0001, quirk_pipea_force }, | |
6824 | ||
6825 | /* ThinkPad X30 needs pipe A force quirk (LP: #304614) */ | |
6826 | { 0x3577, 0x1014, 0x0513, quirk_pipea_force }, | |
6827 | /* ThinkPad X40 needs pipe A force quirk */ | |
6828 | ||
6829 | /* ThinkPad T60 needs pipe A force quirk (bug #16494) */ | |
6830 | { 0x2782, 0x17aa, 0x201a, quirk_pipea_force }, | |
6831 | ||
6832 | /* 855 & before need to leave pipe A & dpll A up */ | |
6833 | { 0x3582, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, | |
6834 | { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, | |
435793df KP |
6835 | |
6836 | /* Lenovo U160 cannot use SSC on LVDS */ | |
6837 | { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable }, | |
070d329a MAS |
6838 | |
6839 | /* Sony Vaio Y cannot use SSC on LVDS */ | |
6840 | { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable }, | |
5a15ab5b CE |
6841 | |
6842 | /* Acer Aspire 5734Z must invert backlight brightness */ | |
6843 | { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness }, | |
b690e96c JB |
6844 | }; |
6845 | ||
6846 | static void intel_init_quirks(struct drm_device *dev) | |
6847 | { | |
6848 | struct pci_dev *d = dev->pdev; | |
6849 | int i; | |
6850 | ||
6851 | for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { | |
6852 | struct intel_quirk *q = &intel_quirks[i]; | |
6853 | ||
6854 | if (d->device == q->device && | |
6855 | (d->subsystem_vendor == q->subsystem_vendor || | |
6856 | q->subsystem_vendor == PCI_ANY_ID) && | |
6857 | (d->subsystem_device == q->subsystem_device || | |
6858 | q->subsystem_device == PCI_ANY_ID)) | |
6859 | q->hook(dev); | |
6860 | } | |
6861 | } | |
6862 | ||
9cce37f4 JB |
6863 | /* Disable the VGA plane that we never use */ |
6864 | static void i915_disable_vga(struct drm_device *dev) | |
6865 | { | |
6866 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6867 | u8 sr1; | |
6868 | u32 vga_reg; | |
6869 | ||
6870 | if (HAS_PCH_SPLIT(dev)) | |
6871 | vga_reg = CPU_VGACNTRL; | |
6872 | else | |
6873 | vga_reg = VGACNTRL; | |
6874 | ||
6875 | vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO); | |
3fdcf431 | 6876 | outb(SR01, VGA_SR_INDEX); |
9cce37f4 JB |
6877 | sr1 = inb(VGA_SR_DATA); |
6878 | outb(sr1 | 1<<5, VGA_SR_DATA); | |
6879 | vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); | |
6880 | udelay(300); | |
6881 | ||
6882 | I915_WRITE(vga_reg, VGA_DISP_DISABLE); | |
6883 | POSTING_READ(vga_reg); | |
6884 | } | |
6885 | ||
f82cfb6b JB |
6886 | static void ivb_pch_pwm_override(struct drm_device *dev) |
6887 | { | |
6888 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6889 | ||
6890 | /* | |
6891 | * IVB has CPU eDP backlight regs too, set things up to let the | |
6892 | * PCH regs control the backlight | |
6893 | */ | |
6894 | I915_WRITE(BLC_PWM_CPU_CTL2, PWM_ENABLE); | |
6895 | I915_WRITE(BLC_PWM_CPU_CTL, 0); | |
6896 | I915_WRITE(BLC_PWM_PCH_CTL1, PWM_ENABLE | (1<<30)); | |
6897 | } | |
6898 | ||
f817586c DV |
6899 | void intel_modeset_init_hw(struct drm_device *dev) |
6900 | { | |
6901 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6902 | ||
6903 | intel_init_clock_gating(dev); | |
6904 | ||
6905 | if (IS_IRONLAKE_M(dev)) { | |
6906 | ironlake_enable_drps(dev); | |
1833b134 | 6907 | ironlake_enable_rc6(dev); |
f817586c DV |
6908 | intel_init_emon(dev); |
6909 | } | |
6910 | ||
b6834bd6 | 6911 | if ((IS_GEN6(dev) || IS_GEN7(dev)) && !IS_VALLEYVIEW(dev)) { |
f817586c DV |
6912 | gen6_enable_rps(dev_priv); |
6913 | gen6_update_ring_freq(dev_priv); | |
6914 | } | |
f82cfb6b JB |
6915 | |
6916 | if (IS_IVYBRIDGE(dev)) | |
6917 | ivb_pch_pwm_override(dev); | |
f817586c DV |
6918 | } |
6919 | ||
79e53945 JB |
6920 | void intel_modeset_init(struct drm_device *dev) |
6921 | { | |
652c393a | 6922 | struct drm_i915_private *dev_priv = dev->dev_private; |
b840d907 | 6923 | int i, ret; |
79e53945 JB |
6924 | |
6925 | drm_mode_config_init(dev); | |
6926 | ||
6927 | dev->mode_config.min_width = 0; | |
6928 | dev->mode_config.min_height = 0; | |
6929 | ||
019d96cb DA |
6930 | dev->mode_config.preferred_depth = 24; |
6931 | dev->mode_config.prefer_shadow = 1; | |
6932 | ||
79e53945 JB |
6933 | dev->mode_config.funcs = (void *)&intel_mode_funcs; |
6934 | ||
b690e96c JB |
6935 | intel_init_quirks(dev); |
6936 | ||
1fa61106 ED |
6937 | intel_init_pm(dev); |
6938 | ||
45244b87 ED |
6939 | intel_prepare_ddi(dev); |
6940 | ||
e70236a8 JB |
6941 | intel_init_display(dev); |
6942 | ||
a6c45cf0 CW |
6943 | if (IS_GEN2(dev)) { |
6944 | dev->mode_config.max_width = 2048; | |
6945 | dev->mode_config.max_height = 2048; | |
6946 | } else if (IS_GEN3(dev)) { | |
5e4d6fa7 KP |
6947 | dev->mode_config.max_width = 4096; |
6948 | dev->mode_config.max_height = 4096; | |
79e53945 | 6949 | } else { |
a6c45cf0 CW |
6950 | dev->mode_config.max_width = 8192; |
6951 | dev->mode_config.max_height = 8192; | |
79e53945 | 6952 | } |
35c3047a | 6953 | dev->mode_config.fb_base = dev->agp->base; |
79e53945 | 6954 | |
28c97730 | 6955 | DRM_DEBUG_KMS("%d display pipe%s available.\n", |
a3524f1b | 6956 | dev_priv->num_pipe, dev_priv->num_pipe > 1 ? "s" : ""); |
79e53945 | 6957 | |
a3524f1b | 6958 | for (i = 0; i < dev_priv->num_pipe; i++) { |
79e53945 | 6959 | intel_crtc_init(dev, i); |
00c2064b JB |
6960 | ret = intel_plane_init(dev, i); |
6961 | if (ret) | |
6962 | DRM_DEBUG_KMS("plane %d init failed: %d\n", i, ret); | |
79e53945 JB |
6963 | } |
6964 | ||
ee7b9f93 JB |
6965 | intel_pch_pll_init(dev); |
6966 | ||
9cce37f4 JB |
6967 | /* Just disable it once at startup */ |
6968 | i915_disable_vga(dev); | |
79e53945 | 6969 | intel_setup_outputs(dev); |
652c393a | 6970 | |
652c393a JB |
6971 | INIT_WORK(&dev_priv->idle_work, intel_idle_update); |
6972 | setup_timer(&dev_priv->idle_timer, intel_gpu_idle_timer, | |
6973 | (unsigned long)dev); | |
2c7111db CW |
6974 | } |
6975 | ||
6976 | void intel_modeset_gem_init(struct drm_device *dev) | |
6977 | { | |
1833b134 | 6978 | intel_modeset_init_hw(dev); |
02e792fb DV |
6979 | |
6980 | intel_setup_overlay(dev); | |
79e53945 JB |
6981 | } |
6982 | ||
6983 | void intel_modeset_cleanup(struct drm_device *dev) | |
6984 | { | |
652c393a JB |
6985 | struct drm_i915_private *dev_priv = dev->dev_private; |
6986 | struct drm_crtc *crtc; | |
6987 | struct intel_crtc *intel_crtc; | |
6988 | ||
f87ea761 | 6989 | drm_kms_helper_poll_fini(dev); |
652c393a JB |
6990 | mutex_lock(&dev->struct_mutex); |
6991 | ||
723bfd70 JB |
6992 | intel_unregister_dsm_handler(); |
6993 | ||
6994 | ||
652c393a JB |
6995 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
6996 | /* Skip inactive CRTCs */ | |
6997 | if (!crtc->fb) | |
6998 | continue; | |
6999 | ||
7000 | intel_crtc = to_intel_crtc(crtc); | |
3dec0095 | 7001 | intel_increase_pllclock(crtc); |
652c393a JB |
7002 | } |
7003 | ||
973d04f9 | 7004 | intel_disable_fbc(dev); |
e70236a8 | 7005 | |
f97108d1 JB |
7006 | if (IS_IRONLAKE_M(dev)) |
7007 | ironlake_disable_drps(dev); | |
b6834bd6 | 7008 | if ((IS_GEN6(dev) || IS_GEN7(dev)) && !IS_VALLEYVIEW(dev)) |
3b8d8d91 | 7009 | gen6_disable_rps(dev); |
f97108d1 | 7010 | |
d5bb081b JB |
7011 | if (IS_IRONLAKE_M(dev)) |
7012 | ironlake_disable_rc6(dev); | |
0cdab21f | 7013 | |
57f350b6 JB |
7014 | if (IS_VALLEYVIEW(dev)) |
7015 | vlv_init_dpio(dev); | |
7016 | ||
69341a5e KH |
7017 | mutex_unlock(&dev->struct_mutex); |
7018 | ||
6c0d9350 DV |
7019 | /* Disable the irq before mode object teardown, for the irq might |
7020 | * enqueue unpin/hotplug work. */ | |
7021 | drm_irq_uninstall(dev); | |
7022 | cancel_work_sync(&dev_priv->hotplug_work); | |
6fdd4d98 | 7023 | cancel_work_sync(&dev_priv->rps_work); |
6c0d9350 | 7024 | |
1630fe75 CW |
7025 | /* flush any delayed tasks or pending work */ |
7026 | flush_scheduled_work(); | |
7027 | ||
3dec0095 DV |
7028 | /* Shut off idle work before the crtcs get freed. */ |
7029 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
7030 | intel_crtc = to_intel_crtc(crtc); | |
7031 | del_timer_sync(&intel_crtc->idle_timer); | |
7032 | } | |
7033 | del_timer_sync(&dev_priv->idle_timer); | |
7034 | cancel_work_sync(&dev_priv->idle_work); | |
7035 | ||
79e53945 JB |
7036 | drm_mode_config_cleanup(dev); |
7037 | } | |
7038 | ||
f1c79df3 ZW |
7039 | /* |
7040 | * Return which encoder is currently attached for connector. | |
7041 | */ | |
df0e9248 | 7042 | struct drm_encoder *intel_best_encoder(struct drm_connector *connector) |
79e53945 | 7043 | { |
df0e9248 CW |
7044 | return &intel_attached_encoder(connector)->base; |
7045 | } | |
f1c79df3 | 7046 | |
df0e9248 CW |
7047 | void intel_connector_attach_encoder(struct intel_connector *connector, |
7048 | struct intel_encoder *encoder) | |
7049 | { | |
7050 | connector->encoder = encoder; | |
7051 | drm_mode_connector_attach_encoder(&connector->base, | |
7052 | &encoder->base); | |
79e53945 | 7053 | } |
28d52043 DA |
7054 | |
7055 | /* | |
7056 | * set vga decode state - true == enable VGA decode | |
7057 | */ | |
7058 | int intel_modeset_vga_set_state(struct drm_device *dev, bool state) | |
7059 | { | |
7060 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7061 | u16 gmch_ctrl; | |
7062 | ||
7063 | pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl); | |
7064 | if (state) | |
7065 | gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE; | |
7066 | else | |
7067 | gmch_ctrl |= INTEL_GMCH_VGA_DISABLE; | |
7068 | pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl); | |
7069 | return 0; | |
7070 | } | |
c4a1d9e4 CW |
7071 | |
7072 | #ifdef CONFIG_DEBUG_FS | |
7073 | #include <linux/seq_file.h> | |
7074 | ||
7075 | struct intel_display_error_state { | |
7076 | struct intel_cursor_error_state { | |
7077 | u32 control; | |
7078 | u32 position; | |
7079 | u32 base; | |
7080 | u32 size; | |
7081 | } cursor[2]; | |
7082 | ||
7083 | struct intel_pipe_error_state { | |
7084 | u32 conf; | |
7085 | u32 source; | |
7086 | ||
7087 | u32 htotal; | |
7088 | u32 hblank; | |
7089 | u32 hsync; | |
7090 | u32 vtotal; | |
7091 | u32 vblank; | |
7092 | u32 vsync; | |
7093 | } pipe[2]; | |
7094 | ||
7095 | struct intel_plane_error_state { | |
7096 | u32 control; | |
7097 | u32 stride; | |
7098 | u32 size; | |
7099 | u32 pos; | |
7100 | u32 addr; | |
7101 | u32 surface; | |
7102 | u32 tile_offset; | |
7103 | } plane[2]; | |
7104 | }; | |
7105 | ||
7106 | struct intel_display_error_state * | |
7107 | intel_display_capture_error_state(struct drm_device *dev) | |
7108 | { | |
0206e353 | 7109 | drm_i915_private_t *dev_priv = dev->dev_private; |
c4a1d9e4 CW |
7110 | struct intel_display_error_state *error; |
7111 | int i; | |
7112 | ||
7113 | error = kmalloc(sizeof(*error), GFP_ATOMIC); | |
7114 | if (error == NULL) | |
7115 | return NULL; | |
7116 | ||
7117 | for (i = 0; i < 2; i++) { | |
7118 | error->cursor[i].control = I915_READ(CURCNTR(i)); | |
7119 | error->cursor[i].position = I915_READ(CURPOS(i)); | |
7120 | error->cursor[i].base = I915_READ(CURBASE(i)); | |
7121 | ||
7122 | error->plane[i].control = I915_READ(DSPCNTR(i)); | |
7123 | error->plane[i].stride = I915_READ(DSPSTRIDE(i)); | |
7124 | error->plane[i].size = I915_READ(DSPSIZE(i)); | |
0206e353 | 7125 | error->plane[i].pos = I915_READ(DSPPOS(i)); |
c4a1d9e4 CW |
7126 | error->plane[i].addr = I915_READ(DSPADDR(i)); |
7127 | if (INTEL_INFO(dev)->gen >= 4) { | |
7128 | error->plane[i].surface = I915_READ(DSPSURF(i)); | |
7129 | error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i)); | |
7130 | } | |
7131 | ||
7132 | error->pipe[i].conf = I915_READ(PIPECONF(i)); | |
7133 | error->pipe[i].source = I915_READ(PIPESRC(i)); | |
7134 | error->pipe[i].htotal = I915_READ(HTOTAL(i)); | |
7135 | error->pipe[i].hblank = I915_READ(HBLANK(i)); | |
7136 | error->pipe[i].hsync = I915_READ(HSYNC(i)); | |
7137 | error->pipe[i].vtotal = I915_READ(VTOTAL(i)); | |
7138 | error->pipe[i].vblank = I915_READ(VBLANK(i)); | |
7139 | error->pipe[i].vsync = I915_READ(VSYNC(i)); | |
7140 | } | |
7141 | ||
7142 | return error; | |
7143 | } | |
7144 | ||
7145 | void | |
7146 | intel_display_print_error_state(struct seq_file *m, | |
7147 | struct drm_device *dev, | |
7148 | struct intel_display_error_state *error) | |
7149 | { | |
7150 | int i; | |
7151 | ||
7152 | for (i = 0; i < 2; i++) { | |
7153 | seq_printf(m, "Pipe [%d]:\n", i); | |
7154 | seq_printf(m, " CONF: %08x\n", error->pipe[i].conf); | |
7155 | seq_printf(m, " SRC: %08x\n", error->pipe[i].source); | |
7156 | seq_printf(m, " HTOTAL: %08x\n", error->pipe[i].htotal); | |
7157 | seq_printf(m, " HBLANK: %08x\n", error->pipe[i].hblank); | |
7158 | seq_printf(m, " HSYNC: %08x\n", error->pipe[i].hsync); | |
7159 | seq_printf(m, " VTOTAL: %08x\n", error->pipe[i].vtotal); | |
7160 | seq_printf(m, " VBLANK: %08x\n", error->pipe[i].vblank); | |
7161 | seq_printf(m, " VSYNC: %08x\n", error->pipe[i].vsync); | |
7162 | ||
7163 | seq_printf(m, "Plane [%d]:\n", i); | |
7164 | seq_printf(m, " CNTR: %08x\n", error->plane[i].control); | |
7165 | seq_printf(m, " STRIDE: %08x\n", error->plane[i].stride); | |
7166 | seq_printf(m, " SIZE: %08x\n", error->plane[i].size); | |
7167 | seq_printf(m, " POS: %08x\n", error->plane[i].pos); | |
7168 | seq_printf(m, " ADDR: %08x\n", error->plane[i].addr); | |
7169 | if (INTEL_INFO(dev)->gen >= 4) { | |
7170 | seq_printf(m, " SURF: %08x\n", error->plane[i].surface); | |
7171 | seq_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset); | |
7172 | } | |
7173 | ||
7174 | seq_printf(m, "Cursor [%d]:\n", i); | |
7175 | seq_printf(m, " CNTR: %08x\n", error->cursor[i].control); | |
7176 | seq_printf(m, " POS: %08x\n", error->cursor[i].position); | |
7177 | seq_printf(m, " BASE: %08x\n", error->cursor[i].base); | |
7178 | } | |
7179 | } | |
7180 | #endif |