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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> |
760285e7 | 35 | #include <drm/drmP.h> |
79e53945 | 36 | #include "intel_drv.h" |
760285e7 | 37 | #include <drm/i915_drm.h> |
79e53945 | 38 | #include "i915_drv.h" |
e5510fac | 39 | #include "i915_trace.h" |
760285e7 DH |
40 | #include <drm/drm_dp_helper.h> |
41 | #include <drm/drm_crtc_helper.h> | |
c0f372b3 | 42 | #include <linux/dma_remapping.h> |
79e53945 | 43 | |
0206e353 | 44 | bool intel_pipe_has_type(struct drm_crtc *crtc, int type); |
3dec0095 | 45 | static void intel_increase_pllclock(struct drm_crtc *crtc); |
6b383a7f | 46 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on); |
79e53945 JB |
47 | |
48 | typedef struct { | |
0206e353 AJ |
49 | /* given values */ |
50 | int n; | |
51 | int m1, m2; | |
52 | int p1, p2; | |
53 | /* derived values */ | |
54 | int dot; | |
55 | int vco; | |
56 | int m; | |
57 | int p; | |
79e53945 JB |
58 | } intel_clock_t; |
59 | ||
60 | typedef struct { | |
0206e353 | 61 | int min, max; |
79e53945 JB |
62 | } intel_range_t; |
63 | ||
64 | typedef struct { | |
0206e353 AJ |
65 | int dot_limit; |
66 | int p2_slow, p2_fast; | |
79e53945 JB |
67 | } intel_p2_t; |
68 | ||
69 | #define INTEL_P2_NUM 2 | |
d4906093 ML |
70 | typedef struct intel_limit intel_limit_t; |
71 | struct intel_limit { | |
0206e353 AJ |
72 | intel_range_t dot, vco, n, m, m1, m2, p, p1; |
73 | intel_p2_t p2; | |
74 | bool (* find_pll)(const intel_limit_t *, struct drm_crtc *, | |
cec2f356 | 75 | int, int, intel_clock_t *, intel_clock_t *); |
d4906093 | 76 | }; |
79e53945 | 77 | |
2377b741 JB |
78 | /* FDI */ |
79 | #define IRONLAKE_FDI_FREQ 2700000 /* in kHz for mode->clock */ | |
80 | ||
d2acd215 DV |
81 | int |
82 | intel_pch_rawclk(struct drm_device *dev) | |
83 | { | |
84 | struct drm_i915_private *dev_priv = dev->dev_private; | |
85 | ||
86 | WARN_ON(!HAS_PCH_SPLIT(dev)); | |
87 | ||
88 | return I915_READ(PCH_RAWCLK_FREQ) & RAWCLK_FREQ_MASK; | |
89 | } | |
90 | ||
d4906093 ML |
91 | static bool |
92 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
93 | int target, int refclk, intel_clock_t *match_clock, |
94 | intel_clock_t *best_clock); | |
d4906093 ML |
95 | static bool |
96 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
97 | int target, int refclk, intel_clock_t *match_clock, |
98 | intel_clock_t *best_clock); | |
79e53945 | 99 | |
a4fc5ed6 KP |
100 | static bool |
101 | intel_find_pll_g4x_dp(const intel_limit_t *, struct drm_crtc *crtc, | |
cec2f356 SP |
102 | int target, int refclk, intel_clock_t *match_clock, |
103 | intel_clock_t *best_clock); | |
5eb08b69 | 104 | static bool |
f2b115e6 | 105 | intel_find_pll_ironlake_dp(const intel_limit_t *, struct drm_crtc *crtc, |
cec2f356 SP |
106 | int target, int refclk, intel_clock_t *match_clock, |
107 | intel_clock_t *best_clock); | |
a4fc5ed6 | 108 | |
a0c4da24 JB |
109 | static bool |
110 | intel_vlv_find_best_pll(const intel_limit_t *limit, struct drm_crtc *crtc, | |
111 | int target, int refclk, intel_clock_t *match_clock, | |
112 | intel_clock_t *best_clock); | |
113 | ||
021357ac CW |
114 | static inline u32 /* units of 100MHz */ |
115 | intel_fdi_link_freq(struct drm_device *dev) | |
116 | { | |
8b99e68c CW |
117 | if (IS_GEN5(dev)) { |
118 | struct drm_i915_private *dev_priv = dev->dev_private; | |
119 | return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2; | |
120 | } else | |
121 | return 27; | |
021357ac CW |
122 | } |
123 | ||
e4b36699 | 124 | static const intel_limit_t intel_limits_i8xx_dvo = { |
0206e353 AJ |
125 | .dot = { .min = 25000, .max = 350000 }, |
126 | .vco = { .min = 930000, .max = 1400000 }, | |
127 | .n = { .min = 3, .max = 16 }, | |
128 | .m = { .min = 96, .max = 140 }, | |
129 | .m1 = { .min = 18, .max = 26 }, | |
130 | .m2 = { .min = 6, .max = 16 }, | |
131 | .p = { .min = 4, .max = 128 }, | |
132 | .p1 = { .min = 2, .max = 33 }, | |
273e27ca EA |
133 | .p2 = { .dot_limit = 165000, |
134 | .p2_slow = 4, .p2_fast = 2 }, | |
d4906093 | 135 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
136 | }; |
137 | ||
138 | static const intel_limit_t intel_limits_i8xx_lvds = { | |
0206e353 AJ |
139 | .dot = { .min = 25000, .max = 350000 }, |
140 | .vco = { .min = 930000, .max = 1400000 }, | |
141 | .n = { .min = 3, .max = 16 }, | |
142 | .m = { .min = 96, .max = 140 }, | |
143 | .m1 = { .min = 18, .max = 26 }, | |
144 | .m2 = { .min = 6, .max = 16 }, | |
145 | .p = { .min = 4, .max = 128 }, | |
146 | .p1 = { .min = 1, .max = 6 }, | |
273e27ca EA |
147 | .p2 = { .dot_limit = 165000, |
148 | .p2_slow = 14, .p2_fast = 7 }, | |
d4906093 | 149 | .find_pll = intel_find_best_PLL, |
e4b36699 | 150 | }; |
273e27ca | 151 | |
e4b36699 | 152 | static const intel_limit_t intel_limits_i9xx_sdvo = { |
0206e353 AJ |
153 | .dot = { .min = 20000, .max = 400000 }, |
154 | .vco = { .min = 1400000, .max = 2800000 }, | |
155 | .n = { .min = 1, .max = 6 }, | |
156 | .m = { .min = 70, .max = 120 }, | |
157 | .m1 = { .min = 10, .max = 22 }, | |
158 | .m2 = { .min = 5, .max = 9 }, | |
159 | .p = { .min = 5, .max = 80 }, | |
160 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
161 | .p2 = { .dot_limit = 200000, |
162 | .p2_slow = 10, .p2_fast = 5 }, | |
d4906093 | 163 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
164 | }; |
165 | ||
166 | static const intel_limit_t intel_limits_i9xx_lvds = { | |
0206e353 AJ |
167 | .dot = { .min = 20000, .max = 400000 }, |
168 | .vco = { .min = 1400000, .max = 2800000 }, | |
169 | .n = { .min = 1, .max = 6 }, | |
170 | .m = { .min = 70, .max = 120 }, | |
171 | .m1 = { .min = 10, .max = 22 }, | |
172 | .m2 = { .min = 5, .max = 9 }, | |
173 | .p = { .min = 7, .max = 98 }, | |
174 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
175 | .p2 = { .dot_limit = 112000, |
176 | .p2_slow = 14, .p2_fast = 7 }, | |
d4906093 | 177 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
178 | }; |
179 | ||
273e27ca | 180 | |
e4b36699 | 181 | static const intel_limit_t intel_limits_g4x_sdvo = { |
273e27ca EA |
182 | .dot = { .min = 25000, .max = 270000 }, |
183 | .vco = { .min = 1750000, .max = 3500000}, | |
184 | .n = { .min = 1, .max = 4 }, | |
185 | .m = { .min = 104, .max = 138 }, | |
186 | .m1 = { .min = 17, .max = 23 }, | |
187 | .m2 = { .min = 5, .max = 11 }, | |
188 | .p = { .min = 10, .max = 30 }, | |
189 | .p1 = { .min = 1, .max = 3}, | |
190 | .p2 = { .dot_limit = 270000, | |
191 | .p2_slow = 10, | |
192 | .p2_fast = 10 | |
044c7c41 | 193 | }, |
d4906093 | 194 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
195 | }; |
196 | ||
197 | static const intel_limit_t intel_limits_g4x_hdmi = { | |
273e27ca EA |
198 | .dot = { .min = 22000, .max = 400000 }, |
199 | .vco = { .min = 1750000, .max = 3500000}, | |
200 | .n = { .min = 1, .max = 4 }, | |
201 | .m = { .min = 104, .max = 138 }, | |
202 | .m1 = { .min = 16, .max = 23 }, | |
203 | .m2 = { .min = 5, .max = 11 }, | |
204 | .p = { .min = 5, .max = 80 }, | |
205 | .p1 = { .min = 1, .max = 8}, | |
206 | .p2 = { .dot_limit = 165000, | |
207 | .p2_slow = 10, .p2_fast = 5 }, | |
d4906093 | 208 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
209 | }; |
210 | ||
211 | static const intel_limit_t intel_limits_g4x_single_channel_lvds = { | |
273e27ca EA |
212 | .dot = { .min = 20000, .max = 115000 }, |
213 | .vco = { .min = 1750000, .max = 3500000 }, | |
214 | .n = { .min = 1, .max = 3 }, | |
215 | .m = { .min = 104, .max = 138 }, | |
216 | .m1 = { .min = 17, .max = 23 }, | |
217 | .m2 = { .min = 5, .max = 11 }, | |
218 | .p = { .min = 28, .max = 112 }, | |
219 | .p1 = { .min = 2, .max = 8 }, | |
220 | .p2 = { .dot_limit = 0, | |
221 | .p2_slow = 14, .p2_fast = 14 | |
044c7c41 | 222 | }, |
d4906093 | 223 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
224 | }; |
225 | ||
226 | static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { | |
273e27ca EA |
227 | .dot = { .min = 80000, .max = 224000 }, |
228 | .vco = { .min = 1750000, .max = 3500000 }, | |
229 | .n = { .min = 1, .max = 3 }, | |
230 | .m = { .min = 104, .max = 138 }, | |
231 | .m1 = { .min = 17, .max = 23 }, | |
232 | .m2 = { .min = 5, .max = 11 }, | |
233 | .p = { .min = 14, .max = 42 }, | |
234 | .p1 = { .min = 2, .max = 6 }, | |
235 | .p2 = { .dot_limit = 0, | |
236 | .p2_slow = 7, .p2_fast = 7 | |
044c7c41 | 237 | }, |
d4906093 | 238 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
239 | }; |
240 | ||
241 | static const intel_limit_t intel_limits_g4x_display_port = { | |
0206e353 AJ |
242 | .dot = { .min = 161670, .max = 227000 }, |
243 | .vco = { .min = 1750000, .max = 3500000}, | |
244 | .n = { .min = 1, .max = 2 }, | |
245 | .m = { .min = 97, .max = 108 }, | |
246 | .m1 = { .min = 0x10, .max = 0x12 }, | |
247 | .m2 = { .min = 0x05, .max = 0x06 }, | |
248 | .p = { .min = 10, .max = 20 }, | |
249 | .p1 = { .min = 1, .max = 2}, | |
250 | .p2 = { .dot_limit = 0, | |
273e27ca | 251 | .p2_slow = 10, .p2_fast = 10 }, |
0206e353 | 252 | .find_pll = intel_find_pll_g4x_dp, |
e4b36699 KP |
253 | }; |
254 | ||
f2b115e6 | 255 | static const intel_limit_t intel_limits_pineview_sdvo = { |
0206e353 AJ |
256 | .dot = { .min = 20000, .max = 400000}, |
257 | .vco = { .min = 1700000, .max = 3500000 }, | |
273e27ca | 258 | /* Pineview's Ncounter is a ring counter */ |
0206e353 AJ |
259 | .n = { .min = 3, .max = 6 }, |
260 | .m = { .min = 2, .max = 256 }, | |
273e27ca | 261 | /* Pineview only has one combined m divider, which we treat as m2. */ |
0206e353 AJ |
262 | .m1 = { .min = 0, .max = 0 }, |
263 | .m2 = { .min = 0, .max = 254 }, | |
264 | .p = { .min = 5, .max = 80 }, | |
265 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
266 | .p2 = { .dot_limit = 200000, |
267 | .p2_slow = 10, .p2_fast = 5 }, | |
6115707b | 268 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
269 | }; |
270 | ||
f2b115e6 | 271 | static const intel_limit_t intel_limits_pineview_lvds = { |
0206e353 AJ |
272 | .dot = { .min = 20000, .max = 400000 }, |
273 | .vco = { .min = 1700000, .max = 3500000 }, | |
274 | .n = { .min = 3, .max = 6 }, | |
275 | .m = { .min = 2, .max = 256 }, | |
276 | .m1 = { .min = 0, .max = 0 }, | |
277 | .m2 = { .min = 0, .max = 254 }, | |
278 | .p = { .min = 7, .max = 112 }, | |
279 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
280 | .p2 = { .dot_limit = 112000, |
281 | .p2_slow = 14, .p2_fast = 14 }, | |
6115707b | 282 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
283 | }; |
284 | ||
273e27ca EA |
285 | /* Ironlake / Sandybridge |
286 | * | |
287 | * We calculate clock using (register_value + 2) for N/M1/M2, so here | |
288 | * the range value for them is (actual_value - 2). | |
289 | */ | |
b91ad0ec | 290 | static const intel_limit_t intel_limits_ironlake_dac = { |
273e27ca EA |
291 | .dot = { .min = 25000, .max = 350000 }, |
292 | .vco = { .min = 1760000, .max = 3510000 }, | |
293 | .n = { .min = 1, .max = 5 }, | |
294 | .m = { .min = 79, .max = 127 }, | |
295 | .m1 = { .min = 12, .max = 22 }, | |
296 | .m2 = { .min = 5, .max = 9 }, | |
297 | .p = { .min = 5, .max = 80 }, | |
298 | .p1 = { .min = 1, .max = 8 }, | |
299 | .p2 = { .dot_limit = 225000, | |
300 | .p2_slow = 10, .p2_fast = 5 }, | |
4547668a | 301 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
302 | }; |
303 | ||
b91ad0ec | 304 | static const intel_limit_t intel_limits_ironlake_single_lvds = { |
273e27ca EA |
305 | .dot = { .min = 25000, .max = 350000 }, |
306 | .vco = { .min = 1760000, .max = 3510000 }, | |
307 | .n = { .min = 1, .max = 3 }, | |
308 | .m = { .min = 79, .max = 118 }, | |
309 | .m1 = { .min = 12, .max = 22 }, | |
310 | .m2 = { .min = 5, .max = 9 }, | |
311 | .p = { .min = 28, .max = 112 }, | |
312 | .p1 = { .min = 2, .max = 8 }, | |
313 | .p2 = { .dot_limit = 225000, | |
314 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
315 | .find_pll = intel_g4x_find_best_PLL, |
316 | }; | |
317 | ||
318 | static const intel_limit_t intel_limits_ironlake_dual_lvds = { | |
273e27ca EA |
319 | .dot = { .min = 25000, .max = 350000 }, |
320 | .vco = { .min = 1760000, .max = 3510000 }, | |
321 | .n = { .min = 1, .max = 3 }, | |
322 | .m = { .min = 79, .max = 127 }, | |
323 | .m1 = { .min = 12, .max = 22 }, | |
324 | .m2 = { .min = 5, .max = 9 }, | |
325 | .p = { .min = 14, .max = 56 }, | |
326 | .p1 = { .min = 2, .max = 8 }, | |
327 | .p2 = { .dot_limit = 225000, | |
328 | .p2_slow = 7, .p2_fast = 7 }, | |
b91ad0ec ZW |
329 | .find_pll = intel_g4x_find_best_PLL, |
330 | }; | |
331 | ||
273e27ca | 332 | /* LVDS 100mhz refclk limits. */ |
b91ad0ec | 333 | static const intel_limit_t intel_limits_ironlake_single_lvds_100m = { |
273e27ca EA |
334 | .dot = { .min = 25000, .max = 350000 }, |
335 | .vco = { .min = 1760000, .max = 3510000 }, | |
336 | .n = { .min = 1, .max = 2 }, | |
337 | .m = { .min = 79, .max = 126 }, | |
338 | .m1 = { .min = 12, .max = 22 }, | |
339 | .m2 = { .min = 5, .max = 9 }, | |
340 | .p = { .min = 28, .max = 112 }, | |
0206e353 | 341 | .p1 = { .min = 2, .max = 8 }, |
273e27ca EA |
342 | .p2 = { .dot_limit = 225000, |
343 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
344 | .find_pll = intel_g4x_find_best_PLL, |
345 | }; | |
346 | ||
347 | static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = { | |
273e27ca EA |
348 | .dot = { .min = 25000, .max = 350000 }, |
349 | .vco = { .min = 1760000, .max = 3510000 }, | |
350 | .n = { .min = 1, .max = 3 }, | |
351 | .m = { .min = 79, .max = 126 }, | |
352 | .m1 = { .min = 12, .max = 22 }, | |
353 | .m2 = { .min = 5, .max = 9 }, | |
354 | .p = { .min = 14, .max = 42 }, | |
0206e353 | 355 | .p1 = { .min = 2, .max = 6 }, |
273e27ca EA |
356 | .p2 = { .dot_limit = 225000, |
357 | .p2_slow = 7, .p2_fast = 7 }, | |
4547668a ZY |
358 | .find_pll = intel_g4x_find_best_PLL, |
359 | }; | |
360 | ||
361 | static const intel_limit_t intel_limits_ironlake_display_port = { | |
0206e353 AJ |
362 | .dot = { .min = 25000, .max = 350000 }, |
363 | .vco = { .min = 1760000, .max = 3510000}, | |
364 | .n = { .min = 1, .max = 2 }, | |
365 | .m = { .min = 81, .max = 90 }, | |
366 | .m1 = { .min = 12, .max = 22 }, | |
367 | .m2 = { .min = 5, .max = 9 }, | |
368 | .p = { .min = 10, .max = 20 }, | |
369 | .p1 = { .min = 1, .max = 2}, | |
370 | .p2 = { .dot_limit = 0, | |
273e27ca | 371 | .p2_slow = 10, .p2_fast = 10 }, |
0206e353 | 372 | .find_pll = intel_find_pll_ironlake_dp, |
79e53945 JB |
373 | }; |
374 | ||
a0c4da24 JB |
375 | static const intel_limit_t intel_limits_vlv_dac = { |
376 | .dot = { .min = 25000, .max = 270000 }, | |
377 | .vco = { .min = 4000000, .max = 6000000 }, | |
378 | .n = { .min = 1, .max = 7 }, | |
379 | .m = { .min = 22, .max = 450 }, /* guess */ | |
380 | .m1 = { .min = 2, .max = 3 }, | |
381 | .m2 = { .min = 11, .max = 156 }, | |
382 | .p = { .min = 10, .max = 30 }, | |
383 | .p1 = { .min = 2, .max = 3 }, | |
384 | .p2 = { .dot_limit = 270000, | |
385 | .p2_slow = 2, .p2_fast = 20 }, | |
386 | .find_pll = intel_vlv_find_best_pll, | |
387 | }; | |
388 | ||
389 | static const intel_limit_t intel_limits_vlv_hdmi = { | |
390 | .dot = { .min = 20000, .max = 165000 }, | |
17dc9257 | 391 | .vco = { .min = 4000000, .max = 5994000}, |
a0c4da24 JB |
392 | .n = { .min = 1, .max = 7 }, |
393 | .m = { .min = 60, .max = 300 }, /* guess */ | |
394 | .m1 = { .min = 2, .max = 3 }, | |
395 | .m2 = { .min = 11, .max = 156 }, | |
396 | .p = { .min = 10, .max = 30 }, | |
397 | .p1 = { .min = 2, .max = 3 }, | |
398 | .p2 = { .dot_limit = 270000, | |
399 | .p2_slow = 2, .p2_fast = 20 }, | |
400 | .find_pll = intel_vlv_find_best_pll, | |
401 | }; | |
402 | ||
403 | static const intel_limit_t intel_limits_vlv_dp = { | |
74a4dd2e VP |
404 | .dot = { .min = 25000, .max = 270000 }, |
405 | .vco = { .min = 4000000, .max = 6000000 }, | |
a0c4da24 | 406 | .n = { .min = 1, .max = 7 }, |
74a4dd2e | 407 | .m = { .min = 22, .max = 450 }, |
a0c4da24 JB |
408 | .m1 = { .min = 2, .max = 3 }, |
409 | .m2 = { .min = 11, .max = 156 }, | |
410 | .p = { .min = 10, .max = 30 }, | |
411 | .p1 = { .min = 2, .max = 3 }, | |
412 | .p2 = { .dot_limit = 270000, | |
413 | .p2_slow = 2, .p2_fast = 20 }, | |
414 | .find_pll = intel_vlv_find_best_pll, | |
415 | }; | |
416 | ||
57f350b6 JB |
417 | u32 intel_dpio_read(struct drm_i915_private *dev_priv, int reg) |
418 | { | |
419 | unsigned long flags; | |
420 | u32 val = 0; | |
421 | ||
422 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
423 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) { | |
424 | DRM_ERROR("DPIO idle wait timed out\n"); | |
425 | goto out_unlock; | |
426 | } | |
427 | ||
428 | I915_WRITE(DPIO_REG, reg); | |
429 | I915_WRITE(DPIO_PKT, DPIO_RID | DPIO_OP_READ | DPIO_PORTID | | |
430 | DPIO_BYTE); | |
431 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) { | |
432 | DRM_ERROR("DPIO read wait timed out\n"); | |
433 | goto out_unlock; | |
434 | } | |
435 | val = I915_READ(DPIO_DATA); | |
436 | ||
437 | out_unlock: | |
438 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
439 | return val; | |
440 | } | |
441 | ||
a0c4da24 JB |
442 | static void intel_dpio_write(struct drm_i915_private *dev_priv, int reg, |
443 | u32 val) | |
444 | { | |
445 | unsigned long flags; | |
446 | ||
447 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
448 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) { | |
449 | DRM_ERROR("DPIO idle wait timed out\n"); | |
450 | goto out_unlock; | |
451 | } | |
452 | ||
453 | I915_WRITE(DPIO_DATA, val); | |
454 | I915_WRITE(DPIO_REG, reg); | |
455 | I915_WRITE(DPIO_PKT, DPIO_RID | DPIO_OP_WRITE | DPIO_PORTID | | |
456 | DPIO_BYTE); | |
457 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) | |
458 | DRM_ERROR("DPIO write wait timed out\n"); | |
459 | ||
460 | out_unlock: | |
461 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
462 | } | |
463 | ||
57f350b6 JB |
464 | static void vlv_init_dpio(struct drm_device *dev) |
465 | { | |
466 | struct drm_i915_private *dev_priv = dev->dev_private; | |
467 | ||
468 | /* Reset the DPIO config */ | |
469 | I915_WRITE(DPIO_CTL, 0); | |
470 | POSTING_READ(DPIO_CTL); | |
471 | I915_WRITE(DPIO_CTL, 1); | |
472 | POSTING_READ(DPIO_CTL); | |
473 | } | |
474 | ||
618563e3 DV |
475 | static int intel_dual_link_lvds_callback(const struct dmi_system_id *id) |
476 | { | |
477 | DRM_INFO("Forcing lvds to dual link mode on %s\n", id->ident); | |
478 | return 1; | |
479 | } | |
480 | ||
481 | static const struct dmi_system_id intel_dual_link_lvds[] = { | |
482 | { | |
483 | .callback = intel_dual_link_lvds_callback, | |
484 | .ident = "Apple MacBook Pro (Core i5/i7 Series)", | |
485 | .matches = { | |
486 | DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), | |
487 | DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro8,2"), | |
488 | }, | |
489 | }, | |
490 | { } /* terminating entry */ | |
491 | }; | |
492 | ||
b0354385 TI |
493 | static bool is_dual_link_lvds(struct drm_i915_private *dev_priv, |
494 | unsigned int reg) | |
495 | { | |
496 | unsigned int val; | |
497 | ||
121d527a TI |
498 | /* use the module option value if specified */ |
499 | if (i915_lvds_channel_mode > 0) | |
500 | return i915_lvds_channel_mode == 2; | |
501 | ||
618563e3 DV |
502 | if (dmi_check_system(intel_dual_link_lvds)) |
503 | return true; | |
504 | ||
b0354385 TI |
505 | if (dev_priv->lvds_val) |
506 | val = dev_priv->lvds_val; | |
507 | else { | |
508 | /* BIOS should set the proper LVDS register value at boot, but | |
509 | * in reality, it doesn't set the value when the lid is closed; | |
510 | * we need to check "the value to be set" in VBT when LVDS | |
511 | * register is uninitialized. | |
512 | */ | |
513 | val = I915_READ(reg); | |
14d94a3d | 514 | if (!(val & ~(LVDS_PIPE_MASK | LVDS_DETECTED))) |
b0354385 TI |
515 | val = dev_priv->bios_lvds_val; |
516 | dev_priv->lvds_val = val; | |
517 | } | |
518 | return (val & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP; | |
519 | } | |
520 | ||
1b894b59 CW |
521 | static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc, |
522 | int refclk) | |
2c07245f | 523 | { |
b91ad0ec ZW |
524 | struct drm_device *dev = crtc->dev; |
525 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2c07245f | 526 | const intel_limit_t *limit; |
b91ad0ec ZW |
527 | |
528 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
b0354385 | 529 | if (is_dual_link_lvds(dev_priv, PCH_LVDS)) { |
b91ad0ec | 530 | /* LVDS dual channel */ |
1b894b59 | 531 | if (refclk == 100000) |
b91ad0ec ZW |
532 | limit = &intel_limits_ironlake_dual_lvds_100m; |
533 | else | |
534 | limit = &intel_limits_ironlake_dual_lvds; | |
535 | } else { | |
1b894b59 | 536 | if (refclk == 100000) |
b91ad0ec ZW |
537 | limit = &intel_limits_ironlake_single_lvds_100m; |
538 | else | |
539 | limit = &intel_limits_ironlake_single_lvds; | |
540 | } | |
541 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || | |
547dc041 | 542 | intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) |
4547668a | 543 | limit = &intel_limits_ironlake_display_port; |
2c07245f | 544 | else |
b91ad0ec | 545 | limit = &intel_limits_ironlake_dac; |
2c07245f ZW |
546 | |
547 | return limit; | |
548 | } | |
549 | ||
044c7c41 ML |
550 | static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc) |
551 | { | |
552 | struct drm_device *dev = crtc->dev; | |
553 | struct drm_i915_private *dev_priv = dev->dev_private; | |
554 | const intel_limit_t *limit; | |
555 | ||
556 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
b0354385 | 557 | if (is_dual_link_lvds(dev_priv, LVDS)) |
044c7c41 | 558 | /* LVDS with dual channel */ |
e4b36699 | 559 | limit = &intel_limits_g4x_dual_channel_lvds; |
044c7c41 ML |
560 | else |
561 | /* LVDS with dual channel */ | |
e4b36699 | 562 | limit = &intel_limits_g4x_single_channel_lvds; |
044c7c41 ML |
563 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) || |
564 | intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { | |
e4b36699 | 565 | limit = &intel_limits_g4x_hdmi; |
044c7c41 | 566 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) { |
e4b36699 | 567 | limit = &intel_limits_g4x_sdvo; |
0206e353 | 568 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
e4b36699 | 569 | limit = &intel_limits_g4x_display_port; |
044c7c41 | 570 | } else /* The option is for other outputs */ |
e4b36699 | 571 | limit = &intel_limits_i9xx_sdvo; |
044c7c41 ML |
572 | |
573 | return limit; | |
574 | } | |
575 | ||
1b894b59 | 576 | static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk) |
79e53945 JB |
577 | { |
578 | struct drm_device *dev = crtc->dev; | |
579 | const intel_limit_t *limit; | |
580 | ||
bad720ff | 581 | if (HAS_PCH_SPLIT(dev)) |
1b894b59 | 582 | limit = intel_ironlake_limit(crtc, refclk); |
2c07245f | 583 | else if (IS_G4X(dev)) { |
044c7c41 | 584 | limit = intel_g4x_limit(crtc); |
f2b115e6 | 585 | } else if (IS_PINEVIEW(dev)) { |
2177832f | 586 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
f2b115e6 | 587 | limit = &intel_limits_pineview_lvds; |
2177832f | 588 | else |
f2b115e6 | 589 | limit = &intel_limits_pineview_sdvo; |
a0c4da24 JB |
590 | } else if (IS_VALLEYVIEW(dev)) { |
591 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) | |
592 | limit = &intel_limits_vlv_dac; | |
593 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) | |
594 | limit = &intel_limits_vlv_hdmi; | |
595 | else | |
596 | limit = &intel_limits_vlv_dp; | |
a6c45cf0 CW |
597 | } else if (!IS_GEN2(dev)) { |
598 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
599 | limit = &intel_limits_i9xx_lvds; | |
600 | else | |
601 | limit = &intel_limits_i9xx_sdvo; | |
79e53945 JB |
602 | } else { |
603 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
e4b36699 | 604 | limit = &intel_limits_i8xx_lvds; |
79e53945 | 605 | else |
e4b36699 | 606 | limit = &intel_limits_i8xx_dvo; |
79e53945 JB |
607 | } |
608 | return limit; | |
609 | } | |
610 | ||
f2b115e6 AJ |
611 | /* m1 is reserved as 0 in Pineview, n is a ring counter */ |
612 | static void pineview_clock(int refclk, intel_clock_t *clock) | |
79e53945 | 613 | { |
2177832f SL |
614 | clock->m = clock->m2 + 2; |
615 | clock->p = clock->p1 * clock->p2; | |
616 | clock->vco = refclk * clock->m / clock->n; | |
617 | clock->dot = clock->vco / clock->p; | |
618 | } | |
619 | ||
620 | static void intel_clock(struct drm_device *dev, int refclk, intel_clock_t *clock) | |
621 | { | |
f2b115e6 AJ |
622 | if (IS_PINEVIEW(dev)) { |
623 | pineview_clock(refclk, clock); | |
2177832f SL |
624 | return; |
625 | } | |
79e53945 JB |
626 | clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2); |
627 | clock->p = clock->p1 * clock->p2; | |
628 | clock->vco = refclk * clock->m / (clock->n + 2); | |
629 | clock->dot = clock->vco / clock->p; | |
630 | } | |
631 | ||
79e53945 JB |
632 | /** |
633 | * Returns whether any output on the specified pipe is of the specified type | |
634 | */ | |
4ef69c7a | 635 | bool intel_pipe_has_type(struct drm_crtc *crtc, int type) |
79e53945 | 636 | { |
4ef69c7a | 637 | struct drm_device *dev = crtc->dev; |
4ef69c7a CW |
638 | struct intel_encoder *encoder; |
639 | ||
6c2b7c12 DV |
640 | for_each_encoder_on_crtc(dev, crtc, encoder) |
641 | if (encoder->type == type) | |
4ef69c7a CW |
642 | return true; |
643 | ||
644 | return false; | |
79e53945 JB |
645 | } |
646 | ||
7c04d1d9 | 647 | #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) |
79e53945 JB |
648 | /** |
649 | * Returns whether the given set of divisors are valid for a given refclk with | |
650 | * the given connectors. | |
651 | */ | |
652 | ||
1b894b59 CW |
653 | static bool intel_PLL_is_valid(struct drm_device *dev, |
654 | const intel_limit_t *limit, | |
655 | const intel_clock_t *clock) | |
79e53945 | 656 | { |
79e53945 | 657 | if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1) |
0206e353 | 658 | INTELPllInvalid("p1 out of range\n"); |
79e53945 | 659 | if (clock->p < limit->p.min || limit->p.max < clock->p) |
0206e353 | 660 | INTELPllInvalid("p out of range\n"); |
79e53945 | 661 | if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2) |
0206e353 | 662 | INTELPllInvalid("m2 out of range\n"); |
79e53945 | 663 | if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1) |
0206e353 | 664 | INTELPllInvalid("m1 out of range\n"); |
f2b115e6 | 665 | if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev)) |
0206e353 | 666 | INTELPllInvalid("m1 <= m2\n"); |
79e53945 | 667 | if (clock->m < limit->m.min || limit->m.max < clock->m) |
0206e353 | 668 | INTELPllInvalid("m out of range\n"); |
79e53945 | 669 | if (clock->n < limit->n.min || limit->n.max < clock->n) |
0206e353 | 670 | INTELPllInvalid("n out of range\n"); |
79e53945 | 671 | if (clock->vco < limit->vco.min || limit->vco.max < clock->vco) |
0206e353 | 672 | INTELPllInvalid("vco out of range\n"); |
79e53945 JB |
673 | /* XXX: We may need to be checking "Dot clock" depending on the multiplier, |
674 | * connector, etc., rather than just a single range. | |
675 | */ | |
676 | if (clock->dot < limit->dot.min || limit->dot.max < clock->dot) | |
0206e353 | 677 | INTELPllInvalid("dot out of range\n"); |
79e53945 JB |
678 | |
679 | return true; | |
680 | } | |
681 | ||
d4906093 ML |
682 | static bool |
683 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
684 | int target, int refclk, intel_clock_t *match_clock, |
685 | intel_clock_t *best_clock) | |
d4906093 | 686 | |
79e53945 JB |
687 | { |
688 | struct drm_device *dev = crtc->dev; | |
689 | struct drm_i915_private *dev_priv = dev->dev_private; | |
690 | intel_clock_t clock; | |
79e53945 JB |
691 | int err = target; |
692 | ||
bc5e5718 | 693 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && |
832cc28d | 694 | (I915_READ(LVDS)) != 0) { |
79e53945 JB |
695 | /* |
696 | * For LVDS, if the panel is on, just rely on its current | |
697 | * settings for dual-channel. We haven't figured out how to | |
698 | * reliably set up different single/dual channel state, if we | |
699 | * even can. | |
700 | */ | |
b0354385 | 701 | if (is_dual_link_lvds(dev_priv, LVDS)) |
79e53945 JB |
702 | clock.p2 = limit->p2.p2_fast; |
703 | else | |
704 | clock.p2 = limit->p2.p2_slow; | |
705 | } else { | |
706 | if (target < limit->p2.dot_limit) | |
707 | clock.p2 = limit->p2.p2_slow; | |
708 | else | |
709 | clock.p2 = limit->p2.p2_fast; | |
710 | } | |
711 | ||
0206e353 | 712 | memset(best_clock, 0, sizeof(*best_clock)); |
79e53945 | 713 | |
42158660 ZY |
714 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
715 | clock.m1++) { | |
716 | for (clock.m2 = limit->m2.min; | |
717 | clock.m2 <= limit->m2.max; clock.m2++) { | |
f2b115e6 AJ |
718 | /* m1 is always 0 in Pineview */ |
719 | if (clock.m2 >= clock.m1 && !IS_PINEVIEW(dev)) | |
42158660 ZY |
720 | break; |
721 | for (clock.n = limit->n.min; | |
722 | clock.n <= limit->n.max; clock.n++) { | |
723 | for (clock.p1 = limit->p1.min; | |
724 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
725 | int this_err; |
726 | ||
2177832f | 727 | intel_clock(dev, refclk, &clock); |
1b894b59 CW |
728 | if (!intel_PLL_is_valid(dev, limit, |
729 | &clock)) | |
79e53945 | 730 | continue; |
cec2f356 SP |
731 | if (match_clock && |
732 | clock.p != match_clock->p) | |
733 | continue; | |
79e53945 JB |
734 | |
735 | this_err = abs(clock.dot - target); | |
736 | if (this_err < err) { | |
737 | *best_clock = clock; | |
738 | err = this_err; | |
739 | } | |
740 | } | |
741 | } | |
742 | } | |
743 | } | |
744 | ||
745 | return (err != target); | |
746 | } | |
747 | ||
d4906093 ML |
748 | static bool |
749 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
750 | int target, int refclk, intel_clock_t *match_clock, |
751 | intel_clock_t *best_clock) | |
d4906093 ML |
752 | { |
753 | struct drm_device *dev = crtc->dev; | |
754 | struct drm_i915_private *dev_priv = dev->dev_private; | |
755 | intel_clock_t clock; | |
756 | int max_n; | |
757 | bool found; | |
6ba770dc AJ |
758 | /* approximately equals target * 0.00585 */ |
759 | int err_most = (target >> 8) + (target >> 9); | |
d4906093 ML |
760 | found = false; |
761 | ||
762 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
4547668a ZY |
763 | int lvds_reg; |
764 | ||
c619eed4 | 765 | if (HAS_PCH_SPLIT(dev)) |
4547668a ZY |
766 | lvds_reg = PCH_LVDS; |
767 | else | |
768 | lvds_reg = LVDS; | |
769 | if ((I915_READ(lvds_reg) & LVDS_CLKB_POWER_MASK) == | |
d4906093 ML |
770 | LVDS_CLKB_POWER_UP) |
771 | clock.p2 = limit->p2.p2_fast; | |
772 | else | |
773 | clock.p2 = limit->p2.p2_slow; | |
774 | } else { | |
775 | if (target < limit->p2.dot_limit) | |
776 | clock.p2 = limit->p2.p2_slow; | |
777 | else | |
778 | clock.p2 = limit->p2.p2_fast; | |
779 | } | |
780 | ||
781 | memset(best_clock, 0, sizeof(*best_clock)); | |
782 | max_n = limit->n.max; | |
f77f13e2 | 783 | /* based on hardware requirement, prefer smaller n to precision */ |
d4906093 | 784 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
f77f13e2 | 785 | /* based on hardware requirement, prefere larger m1,m2 */ |
d4906093 ML |
786 | for (clock.m1 = limit->m1.max; |
787 | clock.m1 >= limit->m1.min; clock.m1--) { | |
788 | for (clock.m2 = limit->m2.max; | |
789 | clock.m2 >= limit->m2.min; clock.m2--) { | |
790 | for (clock.p1 = limit->p1.max; | |
791 | clock.p1 >= limit->p1.min; clock.p1--) { | |
792 | int this_err; | |
793 | ||
2177832f | 794 | intel_clock(dev, refclk, &clock); |
1b894b59 CW |
795 | if (!intel_PLL_is_valid(dev, limit, |
796 | &clock)) | |
d4906093 | 797 | continue; |
cec2f356 SP |
798 | if (match_clock && |
799 | clock.p != match_clock->p) | |
800 | continue; | |
1b894b59 CW |
801 | |
802 | this_err = abs(clock.dot - target); | |
d4906093 ML |
803 | if (this_err < err_most) { |
804 | *best_clock = clock; | |
805 | err_most = this_err; | |
806 | max_n = clock.n; | |
807 | found = true; | |
808 | } | |
809 | } | |
810 | } | |
811 | } | |
812 | } | |
2c07245f ZW |
813 | return found; |
814 | } | |
815 | ||
5eb08b69 | 816 | static bool |
f2b115e6 | 817 | intel_find_pll_ironlake_dp(const intel_limit_t *limit, struct drm_crtc *crtc, |
cec2f356 SP |
818 | int target, int refclk, intel_clock_t *match_clock, |
819 | intel_clock_t *best_clock) | |
5eb08b69 ZW |
820 | { |
821 | struct drm_device *dev = crtc->dev; | |
822 | intel_clock_t clock; | |
4547668a | 823 | |
5eb08b69 ZW |
824 | if (target < 200000) { |
825 | clock.n = 1; | |
826 | clock.p1 = 2; | |
827 | clock.p2 = 10; | |
828 | clock.m1 = 12; | |
829 | clock.m2 = 9; | |
830 | } else { | |
831 | clock.n = 2; | |
832 | clock.p1 = 1; | |
833 | clock.p2 = 10; | |
834 | clock.m1 = 14; | |
835 | clock.m2 = 8; | |
836 | } | |
837 | intel_clock(dev, refclk, &clock); | |
838 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); | |
839 | return true; | |
840 | } | |
841 | ||
a4fc5ed6 KP |
842 | /* DisplayPort has only two frequencies, 162MHz and 270MHz */ |
843 | static bool | |
844 | intel_find_pll_g4x_dp(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
845 | int target, int refclk, intel_clock_t *match_clock, |
846 | intel_clock_t *best_clock) | |
a4fc5ed6 | 847 | { |
5eddb70b CW |
848 | intel_clock_t clock; |
849 | if (target < 200000) { | |
850 | clock.p1 = 2; | |
851 | clock.p2 = 10; | |
852 | clock.n = 2; | |
853 | clock.m1 = 23; | |
854 | clock.m2 = 8; | |
855 | } else { | |
856 | clock.p1 = 1; | |
857 | clock.p2 = 10; | |
858 | clock.n = 1; | |
859 | clock.m1 = 14; | |
860 | clock.m2 = 2; | |
861 | } | |
862 | clock.m = 5 * (clock.m1 + 2) + (clock.m2 + 2); | |
863 | clock.p = (clock.p1 * clock.p2); | |
864 | clock.dot = 96000 * clock.m / (clock.n + 2) / clock.p; | |
865 | clock.vco = 0; | |
866 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); | |
867 | return true; | |
a4fc5ed6 | 868 | } |
a0c4da24 JB |
869 | static bool |
870 | intel_vlv_find_best_pll(const intel_limit_t *limit, struct drm_crtc *crtc, | |
871 | int target, int refclk, intel_clock_t *match_clock, | |
872 | intel_clock_t *best_clock) | |
873 | { | |
874 | u32 p1, p2, m1, m2, vco, bestn, bestm1, bestm2, bestp1, bestp2; | |
875 | u32 m, n, fastclk; | |
876 | u32 updrate, minupdate, fracbits, p; | |
877 | unsigned long bestppm, ppm, absppm; | |
878 | int dotclk, flag; | |
879 | ||
af447bd3 | 880 | flag = 0; |
a0c4da24 JB |
881 | dotclk = target * 1000; |
882 | bestppm = 1000000; | |
883 | ppm = absppm = 0; | |
884 | fastclk = dotclk / (2*100); | |
885 | updrate = 0; | |
886 | minupdate = 19200; | |
887 | fracbits = 1; | |
888 | n = p = p1 = p2 = m = m1 = m2 = vco = bestn = 0; | |
889 | bestm1 = bestm2 = bestp1 = bestp2 = 0; | |
890 | ||
891 | /* based on hardware requirement, prefer smaller n to precision */ | |
892 | for (n = limit->n.min; n <= ((refclk) / minupdate); n++) { | |
893 | updrate = refclk / n; | |
894 | for (p1 = limit->p1.max; p1 > limit->p1.min; p1--) { | |
895 | for (p2 = limit->p2.p2_fast+1; p2 > 0; p2--) { | |
896 | if (p2 > 10) | |
897 | p2 = p2 - 1; | |
898 | p = p1 * p2; | |
899 | /* based on hardware requirement, prefer bigger m1,m2 values */ | |
900 | for (m1 = limit->m1.min; m1 <= limit->m1.max; m1++) { | |
901 | m2 = (((2*(fastclk * p * n / m1 )) + | |
902 | refclk) / (2*refclk)); | |
903 | m = m1 * m2; | |
904 | vco = updrate * m; | |
905 | if (vco >= limit->vco.min && vco < limit->vco.max) { | |
906 | ppm = 1000000 * ((vco / p) - fastclk) / fastclk; | |
907 | absppm = (ppm > 0) ? ppm : (-ppm); | |
908 | if (absppm < 100 && ((p1 * p2) > (bestp1 * bestp2))) { | |
909 | bestppm = 0; | |
910 | flag = 1; | |
911 | } | |
912 | if (absppm < bestppm - 10) { | |
913 | bestppm = absppm; | |
914 | flag = 1; | |
915 | } | |
916 | if (flag) { | |
917 | bestn = n; | |
918 | bestm1 = m1; | |
919 | bestm2 = m2; | |
920 | bestp1 = p1; | |
921 | bestp2 = p2; | |
922 | flag = 0; | |
923 | } | |
924 | } | |
925 | } | |
926 | } | |
927 | } | |
928 | } | |
929 | best_clock->n = bestn; | |
930 | best_clock->m1 = bestm1; | |
931 | best_clock->m2 = bestm2; | |
932 | best_clock->p1 = bestp1; | |
933 | best_clock->p2 = bestp2; | |
934 | ||
935 | return true; | |
936 | } | |
a4fc5ed6 | 937 | |
a5c961d1 PZ |
938 | enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv, |
939 | enum pipe pipe) | |
940 | { | |
941 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
942 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
943 | ||
944 | return intel_crtc->cpu_transcoder; | |
945 | } | |
946 | ||
a928d536 PZ |
947 | static void ironlake_wait_for_vblank(struct drm_device *dev, int pipe) |
948 | { | |
949 | struct drm_i915_private *dev_priv = dev->dev_private; | |
950 | u32 frame, frame_reg = PIPEFRAME(pipe); | |
951 | ||
952 | frame = I915_READ(frame_reg); | |
953 | ||
954 | if (wait_for(I915_READ_NOTRACE(frame_reg) != frame, 50)) | |
955 | DRM_DEBUG_KMS("vblank wait timed out\n"); | |
956 | } | |
957 | ||
9d0498a2 JB |
958 | /** |
959 | * intel_wait_for_vblank - wait for vblank on a given pipe | |
960 | * @dev: drm device | |
961 | * @pipe: pipe to wait for | |
962 | * | |
963 | * Wait for vblank to occur on a given pipe. Needed for various bits of | |
964 | * mode setting code. | |
965 | */ | |
966 | void intel_wait_for_vblank(struct drm_device *dev, int pipe) | |
79e53945 | 967 | { |
9d0498a2 | 968 | struct drm_i915_private *dev_priv = dev->dev_private; |
9db4a9c7 | 969 | int pipestat_reg = PIPESTAT(pipe); |
9d0498a2 | 970 | |
a928d536 PZ |
971 | if (INTEL_INFO(dev)->gen >= 5) { |
972 | ironlake_wait_for_vblank(dev, pipe); | |
973 | return; | |
974 | } | |
975 | ||
300387c0 CW |
976 | /* Clear existing vblank status. Note this will clear any other |
977 | * sticky status fields as well. | |
978 | * | |
979 | * This races with i915_driver_irq_handler() with the result | |
980 | * that either function could miss a vblank event. Here it is not | |
981 | * fatal, as we will either wait upon the next vblank interrupt or | |
982 | * timeout. Generally speaking intel_wait_for_vblank() is only | |
983 | * called during modeset at which time the GPU should be idle and | |
984 | * should *not* be performing page flips and thus not waiting on | |
985 | * vblanks... | |
986 | * Currently, the result of us stealing a vblank from the irq | |
987 | * handler is that a single frame will be skipped during swapbuffers. | |
988 | */ | |
989 | I915_WRITE(pipestat_reg, | |
990 | I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS); | |
991 | ||
9d0498a2 | 992 | /* Wait for vblank interrupt bit to set */ |
481b6af3 CW |
993 | if (wait_for(I915_READ(pipestat_reg) & |
994 | PIPE_VBLANK_INTERRUPT_STATUS, | |
995 | 50)) | |
9d0498a2 JB |
996 | DRM_DEBUG_KMS("vblank wait timed out\n"); |
997 | } | |
998 | ||
ab7ad7f6 KP |
999 | /* |
1000 | * intel_wait_for_pipe_off - wait for pipe to turn off | |
9d0498a2 JB |
1001 | * @dev: drm device |
1002 | * @pipe: pipe to wait for | |
1003 | * | |
1004 | * After disabling a pipe, we can't wait for vblank in the usual way, | |
1005 | * spinning on the vblank interrupt status bit, since we won't actually | |
1006 | * see an interrupt when the pipe is disabled. | |
1007 | * | |
ab7ad7f6 KP |
1008 | * On Gen4 and above: |
1009 | * wait for the pipe register state bit to turn off | |
1010 | * | |
1011 | * Otherwise: | |
1012 | * wait for the display line value to settle (it usually | |
1013 | * ends up stopping at the start of the next frame). | |
58e10eb9 | 1014 | * |
9d0498a2 | 1015 | */ |
58e10eb9 | 1016 | void intel_wait_for_pipe_off(struct drm_device *dev, int pipe) |
9d0498a2 JB |
1017 | { |
1018 | struct drm_i915_private *dev_priv = dev->dev_private; | |
702e7a56 PZ |
1019 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1020 | pipe); | |
ab7ad7f6 KP |
1021 | |
1022 | if (INTEL_INFO(dev)->gen >= 4) { | |
702e7a56 | 1023 | int reg = PIPECONF(cpu_transcoder); |
ab7ad7f6 KP |
1024 | |
1025 | /* Wait for the Pipe State to go off */ | |
58e10eb9 CW |
1026 | if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0, |
1027 | 100)) | |
284637d9 | 1028 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 1029 | } else { |
837ba00f | 1030 | u32 last_line, line_mask; |
58e10eb9 | 1031 | int reg = PIPEDSL(pipe); |
ab7ad7f6 KP |
1032 | unsigned long timeout = jiffies + msecs_to_jiffies(100); |
1033 | ||
837ba00f PZ |
1034 | if (IS_GEN2(dev)) |
1035 | line_mask = DSL_LINEMASK_GEN2; | |
1036 | else | |
1037 | line_mask = DSL_LINEMASK_GEN3; | |
1038 | ||
ab7ad7f6 KP |
1039 | /* Wait for the display line to settle */ |
1040 | do { | |
837ba00f | 1041 | last_line = I915_READ(reg) & line_mask; |
ab7ad7f6 | 1042 | mdelay(5); |
837ba00f | 1043 | } while (((I915_READ(reg) & line_mask) != last_line) && |
ab7ad7f6 KP |
1044 | time_after(timeout, jiffies)); |
1045 | if (time_after(jiffies, timeout)) | |
284637d9 | 1046 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 1047 | } |
79e53945 JB |
1048 | } |
1049 | ||
b24e7179 JB |
1050 | static const char *state_string(bool enabled) |
1051 | { | |
1052 | return enabled ? "on" : "off"; | |
1053 | } | |
1054 | ||
1055 | /* Only for pre-ILK configs */ | |
1056 | static void assert_pll(struct drm_i915_private *dev_priv, | |
1057 | enum pipe pipe, bool state) | |
1058 | { | |
1059 | int reg; | |
1060 | u32 val; | |
1061 | bool cur_state; | |
1062 | ||
1063 | reg = DPLL(pipe); | |
1064 | val = I915_READ(reg); | |
1065 | cur_state = !!(val & DPLL_VCO_ENABLE); | |
1066 | WARN(cur_state != state, | |
1067 | "PLL state assertion failure (expected %s, current %s)\n", | |
1068 | state_string(state), state_string(cur_state)); | |
1069 | } | |
1070 | #define assert_pll_enabled(d, p) assert_pll(d, p, true) | |
1071 | #define assert_pll_disabled(d, p) assert_pll(d, p, false) | |
1072 | ||
040484af JB |
1073 | /* For ILK+ */ |
1074 | static void assert_pch_pll(struct drm_i915_private *dev_priv, | |
92b27b08 CW |
1075 | struct intel_pch_pll *pll, |
1076 | struct intel_crtc *crtc, | |
1077 | bool state) | |
040484af | 1078 | { |
040484af JB |
1079 | u32 val; |
1080 | bool cur_state; | |
1081 | ||
9d82aa17 ED |
1082 | if (HAS_PCH_LPT(dev_priv->dev)) { |
1083 | DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n"); | |
1084 | return; | |
1085 | } | |
1086 | ||
92b27b08 CW |
1087 | if (WARN (!pll, |
1088 | "asserting PCH PLL %s with no PLL\n", state_string(state))) | |
ee7b9f93 | 1089 | return; |
ee7b9f93 | 1090 | |
92b27b08 CW |
1091 | val = I915_READ(pll->pll_reg); |
1092 | cur_state = !!(val & DPLL_VCO_ENABLE); | |
1093 | WARN(cur_state != state, | |
1094 | "PCH PLL state for reg %x assertion failure (expected %s, current %s), val=%08x\n", | |
1095 | pll->pll_reg, state_string(state), state_string(cur_state), val); | |
1096 | ||
1097 | /* Make sure the selected PLL is correctly attached to the transcoder */ | |
1098 | if (crtc && HAS_PCH_CPT(dev_priv->dev)) { | |
d3ccbe86 JB |
1099 | u32 pch_dpll; |
1100 | ||
1101 | pch_dpll = I915_READ(PCH_DPLL_SEL); | |
92b27b08 CW |
1102 | cur_state = pll->pll_reg == _PCH_DPLL_B; |
1103 | if (!WARN(((pch_dpll >> (4 * crtc->pipe)) & 1) != cur_state, | |
1104 | "PLL[%d] not attached to this transcoder %d: %08x\n", | |
1105 | cur_state, crtc->pipe, pch_dpll)) { | |
1106 | cur_state = !!(val >> (4*crtc->pipe + 3)); | |
1107 | WARN(cur_state != state, | |
1108 | "PLL[%d] not %s on this transcoder %d: %08x\n", | |
1109 | pll->pll_reg == _PCH_DPLL_B, | |
1110 | state_string(state), | |
1111 | crtc->pipe, | |
1112 | val); | |
1113 | } | |
d3ccbe86 | 1114 | } |
040484af | 1115 | } |
92b27b08 CW |
1116 | #define assert_pch_pll_enabled(d, p, c) assert_pch_pll(d, p, c, true) |
1117 | #define assert_pch_pll_disabled(d, p, c) assert_pch_pll(d, p, c, false) | |
040484af JB |
1118 | |
1119 | static void assert_fdi_tx(struct drm_i915_private *dev_priv, | |
1120 | enum pipe pipe, bool state) | |
1121 | { | |
1122 | int reg; | |
1123 | u32 val; | |
1124 | bool cur_state; | |
ad80a810 PZ |
1125 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1126 | pipe); | |
040484af | 1127 | |
bf507ef7 ED |
1128 | if (IS_HASWELL(dev_priv->dev)) { |
1129 | /* On Haswell, DDI is used instead of FDI_TX_CTL */ | |
ad80a810 | 1130 | reg = TRANS_DDI_FUNC_CTL(cpu_transcoder); |
bf507ef7 | 1131 | val = I915_READ(reg); |
ad80a810 | 1132 | cur_state = !!(val & TRANS_DDI_FUNC_ENABLE); |
bf507ef7 ED |
1133 | } else { |
1134 | reg = FDI_TX_CTL(pipe); | |
1135 | val = I915_READ(reg); | |
1136 | cur_state = !!(val & FDI_TX_ENABLE); | |
1137 | } | |
040484af JB |
1138 | WARN(cur_state != state, |
1139 | "FDI TX state assertion failure (expected %s, current %s)\n", | |
1140 | state_string(state), state_string(cur_state)); | |
1141 | } | |
1142 | #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true) | |
1143 | #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false) | |
1144 | ||
1145 | static void assert_fdi_rx(struct drm_i915_private *dev_priv, | |
1146 | enum pipe pipe, bool state) | |
1147 | { | |
1148 | int reg; | |
1149 | u32 val; | |
1150 | bool cur_state; | |
1151 | ||
d63fa0dc PZ |
1152 | reg = FDI_RX_CTL(pipe); |
1153 | val = I915_READ(reg); | |
1154 | cur_state = !!(val & FDI_RX_ENABLE); | |
040484af JB |
1155 | WARN(cur_state != state, |
1156 | "FDI RX state assertion failure (expected %s, current %s)\n", | |
1157 | state_string(state), state_string(cur_state)); | |
1158 | } | |
1159 | #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true) | |
1160 | #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false) | |
1161 | ||
1162 | static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv, | |
1163 | enum pipe pipe) | |
1164 | { | |
1165 | int reg; | |
1166 | u32 val; | |
1167 | ||
1168 | /* ILK FDI PLL is always enabled */ | |
1169 | if (dev_priv->info->gen == 5) | |
1170 | return; | |
1171 | ||
bf507ef7 ED |
1172 | /* On Haswell, DDI ports are responsible for the FDI PLL setup */ |
1173 | if (IS_HASWELL(dev_priv->dev)) | |
1174 | return; | |
1175 | ||
040484af JB |
1176 | reg = FDI_TX_CTL(pipe); |
1177 | val = I915_READ(reg); | |
1178 | WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n"); | |
1179 | } | |
1180 | ||
1181 | static void assert_fdi_rx_pll_enabled(struct drm_i915_private *dev_priv, | |
1182 | enum pipe pipe) | |
1183 | { | |
1184 | int reg; | |
1185 | u32 val; | |
1186 | ||
1187 | reg = FDI_RX_CTL(pipe); | |
1188 | val = I915_READ(reg); | |
1189 | WARN(!(val & FDI_RX_PLL_ENABLE), "FDI RX PLL assertion failure, should be active but is disabled\n"); | |
1190 | } | |
1191 | ||
ea0760cf JB |
1192 | static void assert_panel_unlocked(struct drm_i915_private *dev_priv, |
1193 | enum pipe pipe) | |
1194 | { | |
1195 | int pp_reg, lvds_reg; | |
1196 | u32 val; | |
1197 | enum pipe panel_pipe = PIPE_A; | |
0de3b485 | 1198 | bool locked = true; |
ea0760cf JB |
1199 | |
1200 | if (HAS_PCH_SPLIT(dev_priv->dev)) { | |
1201 | pp_reg = PCH_PP_CONTROL; | |
1202 | lvds_reg = PCH_LVDS; | |
1203 | } else { | |
1204 | pp_reg = PP_CONTROL; | |
1205 | lvds_reg = LVDS; | |
1206 | } | |
1207 | ||
1208 | val = I915_READ(pp_reg); | |
1209 | if (!(val & PANEL_POWER_ON) || | |
1210 | ((val & PANEL_UNLOCK_REGS) == PANEL_UNLOCK_REGS)) | |
1211 | locked = false; | |
1212 | ||
1213 | if (I915_READ(lvds_reg) & LVDS_PIPEB_SELECT) | |
1214 | panel_pipe = PIPE_B; | |
1215 | ||
1216 | WARN(panel_pipe == pipe && locked, | |
1217 | "panel assertion failure, pipe %c regs locked\n", | |
9db4a9c7 | 1218 | pipe_name(pipe)); |
ea0760cf JB |
1219 | } |
1220 | ||
b840d907 JB |
1221 | void assert_pipe(struct drm_i915_private *dev_priv, |
1222 | enum pipe pipe, bool state) | |
b24e7179 JB |
1223 | { |
1224 | int reg; | |
1225 | u32 val; | |
63d7bbe9 | 1226 | bool cur_state; |
702e7a56 PZ |
1227 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1228 | pipe); | |
b24e7179 | 1229 | |
8e636784 DV |
1230 | /* if we need the pipe A quirk it must be always on */ |
1231 | if (pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) | |
1232 | state = true; | |
1233 | ||
702e7a56 | 1234 | reg = PIPECONF(cpu_transcoder); |
b24e7179 | 1235 | val = I915_READ(reg); |
63d7bbe9 JB |
1236 | cur_state = !!(val & PIPECONF_ENABLE); |
1237 | WARN(cur_state != state, | |
1238 | "pipe %c assertion failure (expected %s, current %s)\n", | |
9db4a9c7 | 1239 | pipe_name(pipe), state_string(state), state_string(cur_state)); |
b24e7179 JB |
1240 | } |
1241 | ||
931872fc CW |
1242 | static void assert_plane(struct drm_i915_private *dev_priv, |
1243 | enum plane plane, bool state) | |
b24e7179 JB |
1244 | { |
1245 | int reg; | |
1246 | u32 val; | |
931872fc | 1247 | bool cur_state; |
b24e7179 JB |
1248 | |
1249 | reg = DSPCNTR(plane); | |
1250 | val = I915_READ(reg); | |
931872fc CW |
1251 | cur_state = !!(val & DISPLAY_PLANE_ENABLE); |
1252 | WARN(cur_state != state, | |
1253 | "plane %c assertion failure (expected %s, current %s)\n", | |
1254 | plane_name(plane), state_string(state), state_string(cur_state)); | |
b24e7179 JB |
1255 | } |
1256 | ||
931872fc CW |
1257 | #define assert_plane_enabled(d, p) assert_plane(d, p, true) |
1258 | #define assert_plane_disabled(d, p) assert_plane(d, p, false) | |
1259 | ||
b24e7179 JB |
1260 | static void assert_planes_disabled(struct drm_i915_private *dev_priv, |
1261 | enum pipe pipe) | |
1262 | { | |
1263 | int reg, i; | |
1264 | u32 val; | |
1265 | int cur_pipe; | |
1266 | ||
19ec1358 | 1267 | /* Planes are fixed to pipes on ILK+ */ |
28c05794 AJ |
1268 | if (HAS_PCH_SPLIT(dev_priv->dev)) { |
1269 | reg = DSPCNTR(pipe); | |
1270 | val = I915_READ(reg); | |
1271 | WARN((val & DISPLAY_PLANE_ENABLE), | |
1272 | "plane %c assertion failure, should be disabled but not\n", | |
1273 | plane_name(pipe)); | |
19ec1358 | 1274 | return; |
28c05794 | 1275 | } |
19ec1358 | 1276 | |
b24e7179 JB |
1277 | /* Need to check both planes against the pipe */ |
1278 | for (i = 0; i < 2; i++) { | |
1279 | reg = DSPCNTR(i); | |
1280 | val = I915_READ(reg); | |
1281 | cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >> | |
1282 | DISPPLANE_SEL_PIPE_SHIFT; | |
1283 | WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe, | |
9db4a9c7 JB |
1284 | "plane %c assertion failure, should be off on pipe %c but is still active\n", |
1285 | plane_name(i), pipe_name(pipe)); | |
b24e7179 JB |
1286 | } |
1287 | } | |
1288 | ||
92f2584a JB |
1289 | static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv) |
1290 | { | |
1291 | u32 val; | |
1292 | bool enabled; | |
1293 | ||
9d82aa17 ED |
1294 | if (HAS_PCH_LPT(dev_priv->dev)) { |
1295 | DRM_DEBUG_DRIVER("LPT does not has PCH refclk, skipping check\n"); | |
1296 | return; | |
1297 | } | |
1298 | ||
92f2584a JB |
1299 | val = I915_READ(PCH_DREF_CONTROL); |
1300 | enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK | | |
1301 | DREF_SUPERSPREAD_SOURCE_MASK)); | |
1302 | WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n"); | |
1303 | } | |
1304 | ||
1305 | static void assert_transcoder_disabled(struct drm_i915_private *dev_priv, | |
1306 | enum pipe pipe) | |
1307 | { | |
1308 | int reg; | |
1309 | u32 val; | |
1310 | bool enabled; | |
1311 | ||
1312 | reg = TRANSCONF(pipe); | |
1313 | val = I915_READ(reg); | |
1314 | enabled = !!(val & TRANS_ENABLE); | |
9db4a9c7 JB |
1315 | WARN(enabled, |
1316 | "transcoder assertion failed, should be off on pipe %c but is still active\n", | |
1317 | pipe_name(pipe)); | |
92f2584a JB |
1318 | } |
1319 | ||
4e634389 KP |
1320 | static bool dp_pipe_enabled(struct drm_i915_private *dev_priv, |
1321 | enum pipe pipe, u32 port_sel, u32 val) | |
f0575e92 KP |
1322 | { |
1323 | if ((val & DP_PORT_EN) == 0) | |
1324 | return false; | |
1325 | ||
1326 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1327 | u32 trans_dp_ctl_reg = TRANS_DP_CTL(pipe); | |
1328 | u32 trans_dp_ctl = I915_READ(trans_dp_ctl_reg); | |
1329 | if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel) | |
1330 | return false; | |
1331 | } else { | |
1332 | if ((val & DP_PIPE_MASK) != (pipe << 30)) | |
1333 | return false; | |
1334 | } | |
1335 | return true; | |
1336 | } | |
1337 | ||
1519b995 KP |
1338 | static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv, |
1339 | enum pipe pipe, u32 val) | |
1340 | { | |
1341 | if ((val & PORT_ENABLE) == 0) | |
1342 | return false; | |
1343 | ||
1344 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1345 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1346 | return false; | |
1347 | } else { | |
1348 | if ((val & TRANSCODER_MASK) != TRANSCODER(pipe)) | |
1349 | return false; | |
1350 | } | |
1351 | return true; | |
1352 | } | |
1353 | ||
1354 | static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv, | |
1355 | enum pipe pipe, u32 val) | |
1356 | { | |
1357 | if ((val & LVDS_PORT_EN) == 0) | |
1358 | return false; | |
1359 | ||
1360 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1361 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1362 | return false; | |
1363 | } else { | |
1364 | if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe)) | |
1365 | return false; | |
1366 | } | |
1367 | return true; | |
1368 | } | |
1369 | ||
1370 | static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv, | |
1371 | enum pipe pipe, u32 val) | |
1372 | { | |
1373 | if ((val & ADPA_DAC_ENABLE) == 0) | |
1374 | return false; | |
1375 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1376 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1377 | return false; | |
1378 | } else { | |
1379 | if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe)) | |
1380 | return false; | |
1381 | } | |
1382 | return true; | |
1383 | } | |
1384 | ||
291906f1 | 1385 | static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv, |
f0575e92 | 1386 | enum pipe pipe, int reg, u32 port_sel) |
291906f1 | 1387 | { |
47a05eca | 1388 | u32 val = I915_READ(reg); |
4e634389 | 1389 | WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val), |
291906f1 | 1390 | "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1391 | reg, pipe_name(pipe)); |
de9a35ab | 1392 | |
75c5da27 DV |
1393 | WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0 |
1394 | && (val & DP_PIPEB_SELECT), | |
de9a35ab | 1395 | "IBX PCH dp port still using transcoder B\n"); |
291906f1 JB |
1396 | } |
1397 | ||
1398 | static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv, | |
1399 | enum pipe pipe, int reg) | |
1400 | { | |
47a05eca | 1401 | u32 val = I915_READ(reg); |
b70ad586 | 1402 | WARN(hdmi_pipe_enabled(dev_priv, pipe, val), |
23c99e77 | 1403 | "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1404 | reg, pipe_name(pipe)); |
de9a35ab | 1405 | |
75c5da27 DV |
1406 | WARN(HAS_PCH_IBX(dev_priv->dev) && (val & PORT_ENABLE) == 0 |
1407 | && (val & SDVO_PIPE_B_SELECT), | |
de9a35ab | 1408 | "IBX PCH hdmi port still using transcoder B\n"); |
291906f1 JB |
1409 | } |
1410 | ||
1411 | static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, | |
1412 | enum pipe pipe) | |
1413 | { | |
1414 | int reg; | |
1415 | u32 val; | |
291906f1 | 1416 | |
f0575e92 KP |
1417 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); |
1418 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); | |
1419 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); | |
291906f1 JB |
1420 | |
1421 | reg = PCH_ADPA; | |
1422 | val = I915_READ(reg); | |
b70ad586 | 1423 | WARN(adpa_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1424 | "PCH VGA enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1425 | pipe_name(pipe)); |
291906f1 JB |
1426 | |
1427 | reg = PCH_LVDS; | |
1428 | val = I915_READ(reg); | |
b70ad586 | 1429 | WARN(lvds_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1430 | "PCH LVDS enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1431 | pipe_name(pipe)); |
291906f1 JB |
1432 | |
1433 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMIB); | |
1434 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMIC); | |
1435 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMID); | |
1436 | } | |
1437 | ||
63d7bbe9 JB |
1438 | /** |
1439 | * intel_enable_pll - enable a PLL | |
1440 | * @dev_priv: i915 private structure | |
1441 | * @pipe: pipe PLL to enable | |
1442 | * | |
1443 | * Enable @pipe's PLL so we can start pumping pixels from a plane. Check to | |
1444 | * make sure the PLL reg is writable first though, since the panel write | |
1445 | * protect mechanism may be enabled. | |
1446 | * | |
1447 | * Note! This is for pre-ILK only. | |
7434a255 TR |
1448 | * |
1449 | * Unfortunately needed by dvo_ns2501 since the dvo depends on it running. | |
63d7bbe9 JB |
1450 | */ |
1451 | static void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) | |
1452 | { | |
1453 | int reg; | |
1454 | u32 val; | |
1455 | ||
1456 | /* No really, not for ILK+ */ | |
a0c4da24 | 1457 | BUG_ON(!IS_VALLEYVIEW(dev_priv->dev) && dev_priv->info->gen >= 5); |
63d7bbe9 JB |
1458 | |
1459 | /* PLL is protected by panel, make sure we can write it */ | |
1460 | if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev)) | |
1461 | assert_panel_unlocked(dev_priv, pipe); | |
1462 | ||
1463 | reg = DPLL(pipe); | |
1464 | val = I915_READ(reg); | |
1465 | val |= DPLL_VCO_ENABLE; | |
1466 | ||
1467 | /* We do this three times for luck */ | |
1468 | I915_WRITE(reg, val); | |
1469 | POSTING_READ(reg); | |
1470 | udelay(150); /* wait for warmup */ | |
1471 | I915_WRITE(reg, val); | |
1472 | POSTING_READ(reg); | |
1473 | udelay(150); /* wait for warmup */ | |
1474 | I915_WRITE(reg, val); | |
1475 | POSTING_READ(reg); | |
1476 | udelay(150); /* wait for warmup */ | |
1477 | } | |
1478 | ||
1479 | /** | |
1480 | * intel_disable_pll - disable a PLL | |
1481 | * @dev_priv: i915 private structure | |
1482 | * @pipe: pipe PLL to disable | |
1483 | * | |
1484 | * Disable the PLL for @pipe, making sure the pipe is off first. | |
1485 | * | |
1486 | * Note! This is for pre-ILK only. | |
1487 | */ | |
1488 | static void intel_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) | |
1489 | { | |
1490 | int reg; | |
1491 | u32 val; | |
1492 | ||
1493 | /* Don't disable pipe A or pipe A PLLs if needed */ | |
1494 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) | |
1495 | return; | |
1496 | ||
1497 | /* Make sure the pipe isn't still relying on us */ | |
1498 | assert_pipe_disabled(dev_priv, pipe); | |
1499 | ||
1500 | reg = DPLL(pipe); | |
1501 | val = I915_READ(reg); | |
1502 | val &= ~DPLL_VCO_ENABLE; | |
1503 | I915_WRITE(reg, val); | |
1504 | POSTING_READ(reg); | |
1505 | } | |
1506 | ||
a416edef ED |
1507 | /* SBI access */ |
1508 | static void | |
1509 | intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value) | |
1510 | { | |
1511 | unsigned long flags; | |
1512 | ||
1513 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
39fb50f6 | 1514 | if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_BUSY) == 0, |
a416edef ED |
1515 | 100)) { |
1516 | DRM_ERROR("timeout waiting for SBI to become ready\n"); | |
1517 | goto out_unlock; | |
1518 | } | |
1519 | ||
1520 | I915_WRITE(SBI_ADDR, | |
1521 | (reg << 16)); | |
1522 | I915_WRITE(SBI_DATA, | |
1523 | value); | |
1524 | I915_WRITE(SBI_CTL_STAT, | |
1525 | SBI_BUSY | | |
1526 | SBI_CTL_OP_CRWR); | |
1527 | ||
39fb50f6 | 1528 | if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0, |
a416edef ED |
1529 | 100)) { |
1530 | DRM_ERROR("timeout waiting for SBI to complete write transaction\n"); | |
1531 | goto out_unlock; | |
1532 | } | |
1533 | ||
1534 | out_unlock: | |
1535 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
1536 | } | |
1537 | ||
1538 | static u32 | |
1539 | intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg) | |
1540 | { | |
1541 | unsigned long flags; | |
39fb50f6 | 1542 | u32 value = 0; |
a416edef ED |
1543 | |
1544 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
39fb50f6 | 1545 | if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_BUSY) == 0, |
a416edef ED |
1546 | 100)) { |
1547 | DRM_ERROR("timeout waiting for SBI to become ready\n"); | |
1548 | goto out_unlock; | |
1549 | } | |
1550 | ||
1551 | I915_WRITE(SBI_ADDR, | |
1552 | (reg << 16)); | |
1553 | I915_WRITE(SBI_CTL_STAT, | |
1554 | SBI_BUSY | | |
1555 | SBI_CTL_OP_CRRD); | |
1556 | ||
39fb50f6 | 1557 | if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0, |
a416edef ED |
1558 | 100)) { |
1559 | DRM_ERROR("timeout waiting for SBI to complete read transaction\n"); | |
1560 | goto out_unlock; | |
1561 | } | |
1562 | ||
1563 | value = I915_READ(SBI_DATA); | |
1564 | ||
1565 | out_unlock: | |
1566 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
1567 | return value; | |
1568 | } | |
1569 | ||
92f2584a | 1570 | /** |
b6b4e185 | 1571 | * ironlake_enable_pch_pll - enable PCH PLL |
92f2584a JB |
1572 | * @dev_priv: i915 private structure |
1573 | * @pipe: pipe PLL to enable | |
1574 | * | |
1575 | * The PCH PLL needs to be enabled before the PCH transcoder, since it | |
1576 | * drives the transcoder clock. | |
1577 | */ | |
b6b4e185 | 1578 | static void ironlake_enable_pch_pll(struct intel_crtc *intel_crtc) |
92f2584a | 1579 | { |
ee7b9f93 | 1580 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
48da64a8 | 1581 | struct intel_pch_pll *pll; |
92f2584a JB |
1582 | int reg; |
1583 | u32 val; | |
1584 | ||
48da64a8 | 1585 | /* PCH PLLs only available on ILK, SNB and IVB */ |
92f2584a | 1586 | BUG_ON(dev_priv->info->gen < 5); |
48da64a8 CW |
1587 | pll = intel_crtc->pch_pll; |
1588 | if (pll == NULL) | |
1589 | return; | |
1590 | ||
1591 | if (WARN_ON(pll->refcount == 0)) | |
1592 | return; | |
ee7b9f93 JB |
1593 | |
1594 | DRM_DEBUG_KMS("enable PCH PLL %x (active %d, on? %d)for crtc %d\n", | |
1595 | pll->pll_reg, pll->active, pll->on, | |
1596 | intel_crtc->base.base.id); | |
92f2584a JB |
1597 | |
1598 | /* PCH refclock must be enabled first */ | |
1599 | assert_pch_refclk_enabled(dev_priv); | |
1600 | ||
ee7b9f93 | 1601 | if (pll->active++ && pll->on) { |
92b27b08 | 1602 | assert_pch_pll_enabled(dev_priv, pll, NULL); |
ee7b9f93 JB |
1603 | return; |
1604 | } | |
1605 | ||
1606 | DRM_DEBUG_KMS("enabling PCH PLL %x\n", pll->pll_reg); | |
1607 | ||
1608 | reg = pll->pll_reg; | |
92f2584a JB |
1609 | val = I915_READ(reg); |
1610 | val |= DPLL_VCO_ENABLE; | |
1611 | I915_WRITE(reg, val); | |
1612 | POSTING_READ(reg); | |
1613 | udelay(200); | |
ee7b9f93 JB |
1614 | |
1615 | pll->on = true; | |
92f2584a JB |
1616 | } |
1617 | ||
ee7b9f93 | 1618 | static void intel_disable_pch_pll(struct intel_crtc *intel_crtc) |
92f2584a | 1619 | { |
ee7b9f93 JB |
1620 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
1621 | struct intel_pch_pll *pll = intel_crtc->pch_pll; | |
92f2584a | 1622 | int reg; |
ee7b9f93 | 1623 | u32 val; |
4c609cb8 | 1624 | |
92f2584a JB |
1625 | /* PCH only available on ILK+ */ |
1626 | BUG_ON(dev_priv->info->gen < 5); | |
ee7b9f93 JB |
1627 | if (pll == NULL) |
1628 | return; | |
92f2584a | 1629 | |
48da64a8 CW |
1630 | if (WARN_ON(pll->refcount == 0)) |
1631 | return; | |
7a419866 | 1632 | |
ee7b9f93 JB |
1633 | DRM_DEBUG_KMS("disable PCH PLL %x (active %d, on? %d) for crtc %d\n", |
1634 | pll->pll_reg, pll->active, pll->on, | |
1635 | intel_crtc->base.base.id); | |
7a419866 | 1636 | |
48da64a8 | 1637 | if (WARN_ON(pll->active == 0)) { |
92b27b08 | 1638 | assert_pch_pll_disabled(dev_priv, pll, NULL); |
48da64a8 CW |
1639 | return; |
1640 | } | |
1641 | ||
ee7b9f93 | 1642 | if (--pll->active) { |
92b27b08 | 1643 | assert_pch_pll_enabled(dev_priv, pll, NULL); |
7a419866 | 1644 | return; |
ee7b9f93 JB |
1645 | } |
1646 | ||
1647 | DRM_DEBUG_KMS("disabling PCH PLL %x\n", pll->pll_reg); | |
1648 | ||
1649 | /* Make sure transcoder isn't still depending on us */ | |
1650 | assert_transcoder_disabled(dev_priv, intel_crtc->pipe); | |
7a419866 | 1651 | |
ee7b9f93 | 1652 | reg = pll->pll_reg; |
92f2584a JB |
1653 | val = I915_READ(reg); |
1654 | val &= ~DPLL_VCO_ENABLE; | |
1655 | I915_WRITE(reg, val); | |
1656 | POSTING_READ(reg); | |
1657 | udelay(200); | |
ee7b9f93 JB |
1658 | |
1659 | pll->on = false; | |
92f2584a JB |
1660 | } |
1661 | ||
b8a4f404 PZ |
1662 | static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv, |
1663 | enum pipe pipe) | |
040484af | 1664 | { |
23670b32 | 1665 | struct drm_device *dev = dev_priv->dev; |
7c26e5c6 | 1666 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
23670b32 | 1667 | uint32_t reg, val, pipeconf_val; |
040484af JB |
1668 | |
1669 | /* PCH only available on ILK+ */ | |
1670 | BUG_ON(dev_priv->info->gen < 5); | |
1671 | ||
1672 | /* Make sure PCH DPLL is enabled */ | |
92b27b08 CW |
1673 | assert_pch_pll_enabled(dev_priv, |
1674 | to_intel_crtc(crtc)->pch_pll, | |
1675 | to_intel_crtc(crtc)); | |
040484af JB |
1676 | |
1677 | /* FDI must be feeding us bits for PCH ports */ | |
1678 | assert_fdi_tx_enabled(dev_priv, pipe); | |
1679 | assert_fdi_rx_enabled(dev_priv, pipe); | |
1680 | ||
23670b32 DV |
1681 | if (HAS_PCH_CPT(dev)) { |
1682 | /* Workaround: Set the timing override bit before enabling the | |
1683 | * pch transcoder. */ | |
1684 | reg = TRANS_CHICKEN2(pipe); | |
1685 | val = I915_READ(reg); | |
1686 | val |= TRANS_CHICKEN2_TIMING_OVERRIDE; | |
1687 | I915_WRITE(reg, val); | |
59c859d6 | 1688 | } |
23670b32 | 1689 | |
040484af JB |
1690 | reg = TRANSCONF(pipe); |
1691 | val = I915_READ(reg); | |
5f7f726d | 1692 | pipeconf_val = I915_READ(PIPECONF(pipe)); |
e9bcff5c JB |
1693 | |
1694 | if (HAS_PCH_IBX(dev_priv->dev)) { | |
1695 | /* | |
1696 | * make the BPC in transcoder be consistent with | |
1697 | * that in pipeconf reg. | |
1698 | */ | |
1699 | val &= ~PIPE_BPC_MASK; | |
5f7f726d | 1700 | val |= pipeconf_val & PIPE_BPC_MASK; |
e9bcff5c | 1701 | } |
5f7f726d PZ |
1702 | |
1703 | val &= ~TRANS_INTERLACE_MASK; | |
1704 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK) | |
7c26e5c6 PZ |
1705 | if (HAS_PCH_IBX(dev_priv->dev) && |
1706 | intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) | |
1707 | val |= TRANS_LEGACY_INTERLACED_ILK; | |
1708 | else | |
1709 | val |= TRANS_INTERLACED; | |
5f7f726d PZ |
1710 | else |
1711 | val |= TRANS_PROGRESSIVE; | |
1712 | ||
040484af JB |
1713 | I915_WRITE(reg, val | TRANS_ENABLE); |
1714 | if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100)) | |
1715 | DRM_ERROR("failed to enable transcoder %d\n", pipe); | |
1716 | } | |
1717 | ||
8fb033d7 | 1718 | static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv, |
937bb610 | 1719 | enum transcoder cpu_transcoder) |
040484af | 1720 | { |
8fb033d7 | 1721 | u32 val, pipeconf_val; |
8fb033d7 PZ |
1722 | |
1723 | /* PCH only available on ILK+ */ | |
1724 | BUG_ON(dev_priv->info->gen < 5); | |
1725 | ||
8fb033d7 | 1726 | /* FDI must be feeding us bits for PCH ports */ |
937bb610 PZ |
1727 | assert_fdi_tx_enabled(dev_priv, cpu_transcoder); |
1728 | assert_fdi_rx_enabled(dev_priv, TRANSCODER_A); | |
8fb033d7 | 1729 | |
223a6fdf PZ |
1730 | /* Workaround: set timing override bit. */ |
1731 | val = I915_READ(_TRANSA_CHICKEN2); | |
23670b32 | 1732 | val |= TRANS_CHICKEN2_TIMING_OVERRIDE; |
223a6fdf PZ |
1733 | I915_WRITE(_TRANSA_CHICKEN2, val); |
1734 | ||
25f3ef11 | 1735 | val = TRANS_ENABLE; |
937bb610 | 1736 | pipeconf_val = I915_READ(PIPECONF(cpu_transcoder)); |
8fb033d7 | 1737 | |
9a76b1c6 PZ |
1738 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK_HSW) == |
1739 | PIPECONF_INTERLACED_ILK) | |
a35f2679 | 1740 | val |= TRANS_INTERLACED; |
8fb033d7 PZ |
1741 | else |
1742 | val |= TRANS_PROGRESSIVE; | |
1743 | ||
25f3ef11 | 1744 | I915_WRITE(TRANSCONF(TRANSCODER_A), val); |
937bb610 PZ |
1745 | if (wait_for(I915_READ(_TRANSACONF) & TRANS_STATE_ENABLE, 100)) |
1746 | DRM_ERROR("Failed to enable PCH transcoder\n"); | |
8fb033d7 PZ |
1747 | } |
1748 | ||
b8a4f404 PZ |
1749 | static void ironlake_disable_pch_transcoder(struct drm_i915_private *dev_priv, |
1750 | enum pipe pipe) | |
040484af | 1751 | { |
23670b32 DV |
1752 | struct drm_device *dev = dev_priv->dev; |
1753 | uint32_t reg, val; | |
040484af JB |
1754 | |
1755 | /* FDI relies on the transcoder */ | |
1756 | assert_fdi_tx_disabled(dev_priv, pipe); | |
1757 | assert_fdi_rx_disabled(dev_priv, pipe); | |
1758 | ||
291906f1 JB |
1759 | /* Ports must be off as well */ |
1760 | assert_pch_ports_disabled(dev_priv, pipe); | |
1761 | ||
040484af JB |
1762 | reg = TRANSCONF(pipe); |
1763 | val = I915_READ(reg); | |
1764 | val &= ~TRANS_ENABLE; | |
1765 | I915_WRITE(reg, val); | |
1766 | /* wait for PCH transcoder off, transcoder state */ | |
1767 | if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50)) | |
4c9c18c2 | 1768 | DRM_ERROR("failed to disable transcoder %d\n", pipe); |
23670b32 DV |
1769 | |
1770 | if (!HAS_PCH_IBX(dev)) { | |
1771 | /* Workaround: Clear the timing override chicken bit again. */ | |
1772 | reg = TRANS_CHICKEN2(pipe); | |
1773 | val = I915_READ(reg); | |
1774 | val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE; | |
1775 | I915_WRITE(reg, val); | |
1776 | } | |
040484af JB |
1777 | } |
1778 | ||
ab4d966c | 1779 | static void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv) |
8fb033d7 | 1780 | { |
8fb033d7 PZ |
1781 | u32 val; |
1782 | ||
8a52fd9f | 1783 | val = I915_READ(_TRANSACONF); |
8fb033d7 | 1784 | val &= ~TRANS_ENABLE; |
8a52fd9f | 1785 | I915_WRITE(_TRANSACONF, val); |
8fb033d7 | 1786 | /* wait for PCH transcoder off, transcoder state */ |
8a52fd9f PZ |
1787 | if (wait_for((I915_READ(_TRANSACONF) & TRANS_STATE_ENABLE) == 0, 50)) |
1788 | DRM_ERROR("Failed to disable PCH transcoder\n"); | |
223a6fdf PZ |
1789 | |
1790 | /* Workaround: clear timing override bit. */ | |
1791 | val = I915_READ(_TRANSA_CHICKEN2); | |
23670b32 | 1792 | val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE; |
223a6fdf | 1793 | I915_WRITE(_TRANSA_CHICKEN2, val); |
040484af JB |
1794 | } |
1795 | ||
b24e7179 | 1796 | /** |
309cfea8 | 1797 | * intel_enable_pipe - enable a pipe, asserting requirements |
b24e7179 JB |
1798 | * @dev_priv: i915 private structure |
1799 | * @pipe: pipe to enable | |
040484af | 1800 | * @pch_port: on ILK+, is this pipe driving a PCH port or not |
b24e7179 JB |
1801 | * |
1802 | * Enable @pipe, making sure that various hardware specific requirements | |
1803 | * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc. | |
1804 | * | |
1805 | * @pipe should be %PIPE_A or %PIPE_B. | |
1806 | * | |
1807 | * Will wait until the pipe is actually running (i.e. first vblank) before | |
1808 | * returning. | |
1809 | */ | |
040484af JB |
1810 | static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, |
1811 | bool pch_port) | |
b24e7179 | 1812 | { |
702e7a56 PZ |
1813 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1814 | pipe); | |
cc391bbb | 1815 | enum transcoder pch_transcoder; |
b24e7179 JB |
1816 | int reg; |
1817 | u32 val; | |
1818 | ||
cc391bbb PZ |
1819 | if (IS_HASWELL(dev_priv->dev)) |
1820 | pch_transcoder = TRANSCODER_A; | |
1821 | else | |
1822 | pch_transcoder = pipe; | |
1823 | ||
b24e7179 JB |
1824 | /* |
1825 | * A pipe without a PLL won't actually be able to drive bits from | |
1826 | * a plane. On ILK+ the pipe PLLs are integrated, so we don't | |
1827 | * need the check. | |
1828 | */ | |
1829 | if (!HAS_PCH_SPLIT(dev_priv->dev)) | |
1830 | assert_pll_enabled(dev_priv, pipe); | |
040484af JB |
1831 | else { |
1832 | if (pch_port) { | |
1833 | /* if driving the PCH, we need FDI enabled */ | |
cc391bbb PZ |
1834 | assert_fdi_rx_pll_enabled(dev_priv, pch_transcoder); |
1835 | assert_fdi_tx_pll_enabled(dev_priv, cpu_transcoder); | |
040484af JB |
1836 | } |
1837 | /* FIXME: assert CPU port conditions for SNB+ */ | |
1838 | } | |
b24e7179 | 1839 | |
702e7a56 | 1840 | reg = PIPECONF(cpu_transcoder); |
b24e7179 | 1841 | val = I915_READ(reg); |
00d70b15 CW |
1842 | if (val & PIPECONF_ENABLE) |
1843 | return; | |
1844 | ||
1845 | I915_WRITE(reg, val | PIPECONF_ENABLE); | |
b24e7179 JB |
1846 | intel_wait_for_vblank(dev_priv->dev, pipe); |
1847 | } | |
1848 | ||
1849 | /** | |
309cfea8 | 1850 | * intel_disable_pipe - disable a pipe, asserting requirements |
b24e7179 JB |
1851 | * @dev_priv: i915 private structure |
1852 | * @pipe: pipe to disable | |
1853 | * | |
1854 | * Disable @pipe, making sure that various hardware specific requirements | |
1855 | * are met, if applicable, e.g. plane disabled, panel fitter off, etc. | |
1856 | * | |
1857 | * @pipe should be %PIPE_A or %PIPE_B. | |
1858 | * | |
1859 | * Will wait until the pipe has shut down before returning. | |
1860 | */ | |
1861 | static void intel_disable_pipe(struct drm_i915_private *dev_priv, | |
1862 | enum pipe pipe) | |
1863 | { | |
702e7a56 PZ |
1864 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1865 | pipe); | |
b24e7179 JB |
1866 | int reg; |
1867 | u32 val; | |
1868 | ||
1869 | /* | |
1870 | * Make sure planes won't keep trying to pump pixels to us, | |
1871 | * or we might hang the display. | |
1872 | */ | |
1873 | assert_planes_disabled(dev_priv, pipe); | |
1874 | ||
1875 | /* Don't disable pipe A or pipe A PLLs if needed */ | |
1876 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) | |
1877 | return; | |
1878 | ||
702e7a56 | 1879 | reg = PIPECONF(cpu_transcoder); |
b24e7179 | 1880 | val = I915_READ(reg); |
00d70b15 CW |
1881 | if ((val & PIPECONF_ENABLE) == 0) |
1882 | return; | |
1883 | ||
1884 | I915_WRITE(reg, val & ~PIPECONF_ENABLE); | |
b24e7179 JB |
1885 | intel_wait_for_pipe_off(dev_priv->dev, pipe); |
1886 | } | |
1887 | ||
d74362c9 KP |
1888 | /* |
1889 | * Plane regs are double buffered, going from enabled->disabled needs a | |
1890 | * trigger in order to latch. The display address reg provides this. | |
1891 | */ | |
6f1d69b0 | 1892 | void intel_flush_display_plane(struct drm_i915_private *dev_priv, |
d74362c9 KP |
1893 | enum plane plane) |
1894 | { | |
14f86147 DL |
1895 | if (dev_priv->info->gen >= 4) |
1896 | I915_WRITE(DSPSURF(plane), I915_READ(DSPSURF(plane))); | |
1897 | else | |
1898 | I915_WRITE(DSPADDR(plane), I915_READ(DSPADDR(plane))); | |
d74362c9 KP |
1899 | } |
1900 | ||
b24e7179 JB |
1901 | /** |
1902 | * intel_enable_plane - enable a display plane on a given pipe | |
1903 | * @dev_priv: i915 private structure | |
1904 | * @plane: plane to enable | |
1905 | * @pipe: pipe being fed | |
1906 | * | |
1907 | * Enable @plane on @pipe, making sure that @pipe is running first. | |
1908 | */ | |
1909 | static void intel_enable_plane(struct drm_i915_private *dev_priv, | |
1910 | enum plane plane, enum pipe pipe) | |
1911 | { | |
1912 | int reg; | |
1913 | u32 val; | |
1914 | ||
1915 | /* If the pipe isn't enabled, we can't pump pixels and may hang */ | |
1916 | assert_pipe_enabled(dev_priv, pipe); | |
1917 | ||
1918 | reg = DSPCNTR(plane); | |
1919 | val = I915_READ(reg); | |
00d70b15 CW |
1920 | if (val & DISPLAY_PLANE_ENABLE) |
1921 | return; | |
1922 | ||
1923 | I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE); | |
d74362c9 | 1924 | intel_flush_display_plane(dev_priv, plane); |
b24e7179 JB |
1925 | intel_wait_for_vblank(dev_priv->dev, pipe); |
1926 | } | |
1927 | ||
b24e7179 JB |
1928 | /** |
1929 | * intel_disable_plane - disable a display plane | |
1930 | * @dev_priv: i915 private structure | |
1931 | * @plane: plane to disable | |
1932 | * @pipe: pipe consuming the data | |
1933 | * | |
1934 | * Disable @plane; should be an independent operation. | |
1935 | */ | |
1936 | static void intel_disable_plane(struct drm_i915_private *dev_priv, | |
1937 | enum plane plane, enum pipe pipe) | |
1938 | { | |
1939 | int reg; | |
1940 | u32 val; | |
1941 | ||
1942 | reg = DSPCNTR(plane); | |
1943 | val = I915_READ(reg); | |
00d70b15 CW |
1944 | if ((val & DISPLAY_PLANE_ENABLE) == 0) |
1945 | return; | |
1946 | ||
1947 | I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE); | |
b24e7179 JB |
1948 | intel_flush_display_plane(dev_priv, plane); |
1949 | intel_wait_for_vblank(dev_priv->dev, pipe); | |
1950 | } | |
1951 | ||
127bd2ac | 1952 | int |
48b956c5 | 1953 | intel_pin_and_fence_fb_obj(struct drm_device *dev, |
05394f39 | 1954 | struct drm_i915_gem_object *obj, |
919926ae | 1955 | struct intel_ring_buffer *pipelined) |
6b95a207 | 1956 | { |
ce453d81 | 1957 | struct drm_i915_private *dev_priv = dev->dev_private; |
6b95a207 KH |
1958 | u32 alignment; |
1959 | int ret; | |
1960 | ||
05394f39 | 1961 | switch (obj->tiling_mode) { |
6b95a207 | 1962 | case I915_TILING_NONE: |
534843da CW |
1963 | if (IS_BROADWATER(dev) || IS_CRESTLINE(dev)) |
1964 | alignment = 128 * 1024; | |
a6c45cf0 | 1965 | else if (INTEL_INFO(dev)->gen >= 4) |
534843da CW |
1966 | alignment = 4 * 1024; |
1967 | else | |
1968 | alignment = 64 * 1024; | |
6b95a207 KH |
1969 | break; |
1970 | case I915_TILING_X: | |
1971 | /* pin() will align the object as required by fence */ | |
1972 | alignment = 0; | |
1973 | break; | |
1974 | case I915_TILING_Y: | |
1975 | /* FIXME: Is this true? */ | |
1976 | DRM_ERROR("Y tiled not allowed for scan out buffers\n"); | |
1977 | return -EINVAL; | |
1978 | default: | |
1979 | BUG(); | |
1980 | } | |
1981 | ||
ce453d81 | 1982 | dev_priv->mm.interruptible = false; |
2da3b9b9 | 1983 | ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined); |
48b956c5 | 1984 | if (ret) |
ce453d81 | 1985 | goto err_interruptible; |
6b95a207 KH |
1986 | |
1987 | /* Install a fence for tiled scan-out. Pre-i965 always needs a | |
1988 | * fence, whereas 965+ only requires a fence if using | |
1989 | * framebuffer compression. For simplicity, we always install | |
1990 | * a fence as the cost is not that onerous. | |
1991 | */ | |
06d98131 | 1992 | ret = i915_gem_object_get_fence(obj); |
9a5a53b3 CW |
1993 | if (ret) |
1994 | goto err_unpin; | |
1690e1eb | 1995 | |
9a5a53b3 | 1996 | i915_gem_object_pin_fence(obj); |
6b95a207 | 1997 | |
ce453d81 | 1998 | dev_priv->mm.interruptible = true; |
6b95a207 | 1999 | return 0; |
48b956c5 CW |
2000 | |
2001 | err_unpin: | |
2002 | i915_gem_object_unpin(obj); | |
ce453d81 CW |
2003 | err_interruptible: |
2004 | dev_priv->mm.interruptible = true; | |
48b956c5 | 2005 | return ret; |
6b95a207 KH |
2006 | } |
2007 | ||
1690e1eb CW |
2008 | void intel_unpin_fb_obj(struct drm_i915_gem_object *obj) |
2009 | { | |
2010 | i915_gem_object_unpin_fence(obj); | |
2011 | i915_gem_object_unpin(obj); | |
2012 | } | |
2013 | ||
c2c75131 DV |
2014 | /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel |
2015 | * is assumed to be a power-of-two. */ | |
5a35e99e DL |
2016 | unsigned long intel_gen4_compute_offset_xtiled(int *x, int *y, |
2017 | unsigned int bpp, | |
2018 | unsigned int pitch) | |
c2c75131 DV |
2019 | { |
2020 | int tile_rows, tiles; | |
2021 | ||
2022 | tile_rows = *y / 8; | |
2023 | *y %= 8; | |
2024 | tiles = *x / (512/bpp); | |
2025 | *x %= 512/bpp; | |
2026 | ||
2027 | return tile_rows * pitch * 8 + tiles * 4096; | |
2028 | } | |
2029 | ||
17638cd6 JB |
2030 | static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb, |
2031 | int x, int y) | |
81255565 JB |
2032 | { |
2033 | struct drm_device *dev = crtc->dev; | |
2034 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2035 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2036 | struct intel_framebuffer *intel_fb; | |
05394f39 | 2037 | struct drm_i915_gem_object *obj; |
81255565 | 2038 | int plane = intel_crtc->plane; |
e506a0c6 | 2039 | unsigned long linear_offset; |
81255565 | 2040 | u32 dspcntr; |
5eddb70b | 2041 | u32 reg; |
81255565 JB |
2042 | |
2043 | switch (plane) { | |
2044 | case 0: | |
2045 | case 1: | |
2046 | break; | |
2047 | default: | |
2048 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); | |
2049 | return -EINVAL; | |
2050 | } | |
2051 | ||
2052 | intel_fb = to_intel_framebuffer(fb); | |
2053 | obj = intel_fb->obj; | |
81255565 | 2054 | |
5eddb70b CW |
2055 | reg = DSPCNTR(plane); |
2056 | dspcntr = I915_READ(reg); | |
81255565 JB |
2057 | /* Mask out pixel format bits in case we change it */ |
2058 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
57779d06 VS |
2059 | switch (fb->pixel_format) { |
2060 | case DRM_FORMAT_C8: | |
81255565 JB |
2061 | dspcntr |= DISPPLANE_8BPP; |
2062 | break; | |
57779d06 VS |
2063 | case DRM_FORMAT_XRGB1555: |
2064 | case DRM_FORMAT_ARGB1555: | |
2065 | dspcntr |= DISPPLANE_BGRX555; | |
81255565 | 2066 | break; |
57779d06 VS |
2067 | case DRM_FORMAT_RGB565: |
2068 | dspcntr |= DISPPLANE_BGRX565; | |
2069 | break; | |
2070 | case DRM_FORMAT_XRGB8888: | |
2071 | case DRM_FORMAT_ARGB8888: | |
2072 | dspcntr |= DISPPLANE_BGRX888; | |
2073 | break; | |
2074 | case DRM_FORMAT_XBGR8888: | |
2075 | case DRM_FORMAT_ABGR8888: | |
2076 | dspcntr |= DISPPLANE_RGBX888; | |
2077 | break; | |
2078 | case DRM_FORMAT_XRGB2101010: | |
2079 | case DRM_FORMAT_ARGB2101010: | |
2080 | dspcntr |= DISPPLANE_BGRX101010; | |
2081 | break; | |
2082 | case DRM_FORMAT_XBGR2101010: | |
2083 | case DRM_FORMAT_ABGR2101010: | |
2084 | dspcntr |= DISPPLANE_RGBX101010; | |
81255565 JB |
2085 | break; |
2086 | default: | |
57779d06 | 2087 | DRM_ERROR("Unknown pixel format 0x%08x\n", fb->pixel_format); |
81255565 JB |
2088 | return -EINVAL; |
2089 | } | |
57779d06 | 2090 | |
a6c45cf0 | 2091 | if (INTEL_INFO(dev)->gen >= 4) { |
05394f39 | 2092 | if (obj->tiling_mode != I915_TILING_NONE) |
81255565 JB |
2093 | dspcntr |= DISPPLANE_TILED; |
2094 | else | |
2095 | dspcntr &= ~DISPPLANE_TILED; | |
2096 | } | |
2097 | ||
5eddb70b | 2098 | I915_WRITE(reg, dspcntr); |
81255565 | 2099 | |
e506a0c6 | 2100 | linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); |
81255565 | 2101 | |
c2c75131 DV |
2102 | if (INTEL_INFO(dev)->gen >= 4) { |
2103 | intel_crtc->dspaddr_offset = | |
5a35e99e DL |
2104 | intel_gen4_compute_offset_xtiled(&x, &y, |
2105 | fb->bits_per_pixel / 8, | |
2106 | fb->pitches[0]); | |
c2c75131 DV |
2107 | linear_offset -= intel_crtc->dspaddr_offset; |
2108 | } else { | |
e506a0c6 | 2109 | intel_crtc->dspaddr_offset = linear_offset; |
c2c75131 | 2110 | } |
e506a0c6 DV |
2111 | |
2112 | DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n", | |
2113 | obj->gtt_offset, linear_offset, x, y, fb->pitches[0]); | |
01f2c773 | 2114 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
a6c45cf0 | 2115 | if (INTEL_INFO(dev)->gen >= 4) { |
c2c75131 DV |
2116 | I915_MODIFY_DISPBASE(DSPSURF(plane), |
2117 | obj->gtt_offset + intel_crtc->dspaddr_offset); | |
5eddb70b | 2118 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
e506a0c6 | 2119 | I915_WRITE(DSPLINOFF(plane), linear_offset); |
5eddb70b | 2120 | } else |
e506a0c6 | 2121 | I915_WRITE(DSPADDR(plane), obj->gtt_offset + linear_offset); |
5eddb70b | 2122 | POSTING_READ(reg); |
81255565 | 2123 | |
17638cd6 JB |
2124 | return 0; |
2125 | } | |
2126 | ||
2127 | static int ironlake_update_plane(struct drm_crtc *crtc, | |
2128 | struct drm_framebuffer *fb, int x, int y) | |
2129 | { | |
2130 | struct drm_device *dev = crtc->dev; | |
2131 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2132 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2133 | struct intel_framebuffer *intel_fb; | |
2134 | struct drm_i915_gem_object *obj; | |
2135 | int plane = intel_crtc->plane; | |
e506a0c6 | 2136 | unsigned long linear_offset; |
17638cd6 JB |
2137 | u32 dspcntr; |
2138 | u32 reg; | |
2139 | ||
2140 | switch (plane) { | |
2141 | case 0: | |
2142 | case 1: | |
27f8227b | 2143 | case 2: |
17638cd6 JB |
2144 | break; |
2145 | default: | |
2146 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); | |
2147 | return -EINVAL; | |
2148 | } | |
2149 | ||
2150 | intel_fb = to_intel_framebuffer(fb); | |
2151 | obj = intel_fb->obj; | |
2152 | ||
2153 | reg = DSPCNTR(plane); | |
2154 | dspcntr = I915_READ(reg); | |
2155 | /* Mask out pixel format bits in case we change it */ | |
2156 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
57779d06 VS |
2157 | switch (fb->pixel_format) { |
2158 | case DRM_FORMAT_C8: | |
17638cd6 JB |
2159 | dspcntr |= DISPPLANE_8BPP; |
2160 | break; | |
57779d06 VS |
2161 | case DRM_FORMAT_RGB565: |
2162 | dspcntr |= DISPPLANE_BGRX565; | |
17638cd6 | 2163 | break; |
57779d06 VS |
2164 | case DRM_FORMAT_XRGB8888: |
2165 | case DRM_FORMAT_ARGB8888: | |
2166 | dspcntr |= DISPPLANE_BGRX888; | |
2167 | break; | |
2168 | case DRM_FORMAT_XBGR8888: | |
2169 | case DRM_FORMAT_ABGR8888: | |
2170 | dspcntr |= DISPPLANE_RGBX888; | |
2171 | break; | |
2172 | case DRM_FORMAT_XRGB2101010: | |
2173 | case DRM_FORMAT_ARGB2101010: | |
2174 | dspcntr |= DISPPLANE_BGRX101010; | |
2175 | break; | |
2176 | case DRM_FORMAT_XBGR2101010: | |
2177 | case DRM_FORMAT_ABGR2101010: | |
2178 | dspcntr |= DISPPLANE_RGBX101010; | |
17638cd6 JB |
2179 | break; |
2180 | default: | |
57779d06 | 2181 | DRM_ERROR("Unknown pixel format 0x%08x\n", fb->pixel_format); |
17638cd6 JB |
2182 | return -EINVAL; |
2183 | } | |
2184 | ||
2185 | if (obj->tiling_mode != I915_TILING_NONE) | |
2186 | dspcntr |= DISPPLANE_TILED; | |
2187 | else | |
2188 | dspcntr &= ~DISPPLANE_TILED; | |
2189 | ||
2190 | /* must disable */ | |
2191 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; | |
2192 | ||
2193 | I915_WRITE(reg, dspcntr); | |
2194 | ||
e506a0c6 | 2195 | linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); |
c2c75131 | 2196 | intel_crtc->dspaddr_offset = |
5a35e99e DL |
2197 | intel_gen4_compute_offset_xtiled(&x, &y, |
2198 | fb->bits_per_pixel / 8, | |
2199 | fb->pitches[0]); | |
c2c75131 | 2200 | linear_offset -= intel_crtc->dspaddr_offset; |
17638cd6 | 2201 | |
e506a0c6 DV |
2202 | DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n", |
2203 | obj->gtt_offset, linear_offset, x, y, fb->pitches[0]); | |
01f2c773 | 2204 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
c2c75131 DV |
2205 | I915_MODIFY_DISPBASE(DSPSURF(plane), |
2206 | obj->gtt_offset + intel_crtc->dspaddr_offset); | |
bc1c91eb DL |
2207 | if (IS_HASWELL(dev)) { |
2208 | I915_WRITE(DSPOFFSET(plane), (y << 16) | x); | |
2209 | } else { | |
2210 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); | |
2211 | I915_WRITE(DSPLINOFF(plane), linear_offset); | |
2212 | } | |
17638cd6 JB |
2213 | POSTING_READ(reg); |
2214 | ||
2215 | return 0; | |
2216 | } | |
2217 | ||
2218 | /* Assume fb object is pinned & idle & fenced and just update base pointers */ | |
2219 | static int | |
2220 | intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb, | |
2221 | int x, int y, enum mode_set_atomic state) | |
2222 | { | |
2223 | struct drm_device *dev = crtc->dev; | |
2224 | struct drm_i915_private *dev_priv = dev->dev_private; | |
17638cd6 | 2225 | |
6b8e6ed0 CW |
2226 | if (dev_priv->display.disable_fbc) |
2227 | dev_priv->display.disable_fbc(dev); | |
3dec0095 | 2228 | intel_increase_pllclock(crtc); |
81255565 | 2229 | |
6b8e6ed0 | 2230 | return dev_priv->display.update_plane(crtc, fb, x, y); |
81255565 JB |
2231 | } |
2232 | ||
14667a4b CW |
2233 | static int |
2234 | intel_finish_fb(struct drm_framebuffer *old_fb) | |
2235 | { | |
2236 | struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj; | |
2237 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; | |
2238 | bool was_interruptible = dev_priv->mm.interruptible; | |
2239 | int ret; | |
2240 | ||
2241 | wait_event(dev_priv->pending_flip_queue, | |
2242 | atomic_read(&dev_priv->mm.wedged) || | |
2243 | atomic_read(&obj->pending_flip) == 0); | |
2244 | ||
2245 | /* Big Hammer, we also need to ensure that any pending | |
2246 | * MI_WAIT_FOR_EVENT inside a user batch buffer on the | |
2247 | * current scanout is retired before unpinning the old | |
2248 | * framebuffer. | |
2249 | * | |
2250 | * This should only fail upon a hung GPU, in which case we | |
2251 | * can safely continue. | |
2252 | */ | |
2253 | dev_priv->mm.interruptible = false; | |
2254 | ret = i915_gem_object_finish_gpu(obj); | |
2255 | dev_priv->mm.interruptible = was_interruptible; | |
2256 | ||
2257 | return ret; | |
2258 | } | |
2259 | ||
198598d0 VS |
2260 | static void intel_crtc_update_sarea_pos(struct drm_crtc *crtc, int x, int y) |
2261 | { | |
2262 | struct drm_device *dev = crtc->dev; | |
2263 | struct drm_i915_master_private *master_priv; | |
2264 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2265 | ||
2266 | if (!dev->primary->master) | |
2267 | return; | |
2268 | ||
2269 | master_priv = dev->primary->master->driver_priv; | |
2270 | if (!master_priv->sarea_priv) | |
2271 | return; | |
2272 | ||
2273 | switch (intel_crtc->pipe) { | |
2274 | case 0: | |
2275 | master_priv->sarea_priv->pipeA_x = x; | |
2276 | master_priv->sarea_priv->pipeA_y = y; | |
2277 | break; | |
2278 | case 1: | |
2279 | master_priv->sarea_priv->pipeB_x = x; | |
2280 | master_priv->sarea_priv->pipeB_y = y; | |
2281 | break; | |
2282 | default: | |
2283 | break; | |
2284 | } | |
2285 | } | |
2286 | ||
5c3b82e2 | 2287 | static int |
3c4fdcfb | 2288 | intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, |
94352cf9 | 2289 | struct drm_framebuffer *fb) |
79e53945 JB |
2290 | { |
2291 | struct drm_device *dev = crtc->dev; | |
6b8e6ed0 | 2292 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 | 2293 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
94352cf9 | 2294 | struct drm_framebuffer *old_fb; |
5c3b82e2 | 2295 | int ret; |
79e53945 JB |
2296 | |
2297 | /* no fb bound */ | |
94352cf9 | 2298 | if (!fb) { |
a5071c2f | 2299 | DRM_ERROR("No FB bound\n"); |
5c3b82e2 CW |
2300 | return 0; |
2301 | } | |
2302 | ||
5826eca5 ED |
2303 | if(intel_crtc->plane > dev_priv->num_pipe) { |
2304 | DRM_ERROR("no plane for crtc: plane %d, num_pipes %d\n", | |
2305 | intel_crtc->plane, | |
2306 | dev_priv->num_pipe); | |
5c3b82e2 | 2307 | return -EINVAL; |
79e53945 JB |
2308 | } |
2309 | ||
5c3b82e2 | 2310 | mutex_lock(&dev->struct_mutex); |
265db958 | 2311 | ret = intel_pin_and_fence_fb_obj(dev, |
94352cf9 | 2312 | to_intel_framebuffer(fb)->obj, |
919926ae | 2313 | NULL); |
5c3b82e2 CW |
2314 | if (ret != 0) { |
2315 | mutex_unlock(&dev->struct_mutex); | |
a5071c2f | 2316 | DRM_ERROR("pin & fence failed\n"); |
5c3b82e2 CW |
2317 | return ret; |
2318 | } | |
79e53945 | 2319 | |
94352cf9 DV |
2320 | if (crtc->fb) |
2321 | intel_finish_fb(crtc->fb); | |
265db958 | 2322 | |
94352cf9 | 2323 | ret = dev_priv->display.update_plane(crtc, fb, x, y); |
4e6cfefc | 2324 | if (ret) { |
94352cf9 | 2325 | intel_unpin_fb_obj(to_intel_framebuffer(fb)->obj); |
5c3b82e2 | 2326 | mutex_unlock(&dev->struct_mutex); |
a5071c2f | 2327 | DRM_ERROR("failed to update base address\n"); |
4e6cfefc | 2328 | return ret; |
79e53945 | 2329 | } |
3c4fdcfb | 2330 | |
94352cf9 DV |
2331 | old_fb = crtc->fb; |
2332 | crtc->fb = fb; | |
6c4c86f5 DV |
2333 | crtc->x = x; |
2334 | crtc->y = y; | |
94352cf9 | 2335 | |
b7f1de28 CW |
2336 | if (old_fb) { |
2337 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
1690e1eb | 2338 | intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj); |
b7f1de28 | 2339 | } |
652c393a | 2340 | |
6b8e6ed0 | 2341 | intel_update_fbc(dev); |
5c3b82e2 | 2342 | mutex_unlock(&dev->struct_mutex); |
79e53945 | 2343 | |
198598d0 | 2344 | intel_crtc_update_sarea_pos(crtc, x, y); |
5c3b82e2 CW |
2345 | |
2346 | return 0; | |
79e53945 JB |
2347 | } |
2348 | ||
5eddb70b | 2349 | static void ironlake_set_pll_edp(struct drm_crtc *crtc, int clock) |
32f9d658 ZW |
2350 | { |
2351 | struct drm_device *dev = crtc->dev; | |
2352 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2353 | u32 dpa_ctl; | |
2354 | ||
28c97730 | 2355 | DRM_DEBUG_KMS("eDP PLL enable for clock %d\n", clock); |
32f9d658 ZW |
2356 | dpa_ctl = I915_READ(DP_A); |
2357 | dpa_ctl &= ~DP_PLL_FREQ_MASK; | |
2358 | ||
2359 | if (clock < 200000) { | |
2360 | u32 temp; | |
2361 | dpa_ctl |= DP_PLL_FREQ_160MHZ; | |
2362 | /* workaround for 160Mhz: | |
2363 | 1) program 0x4600c bits 15:0 = 0x8124 | |
2364 | 2) program 0x46010 bit 0 = 1 | |
2365 | 3) program 0x46034 bit 24 = 1 | |
2366 | 4) program 0x64000 bit 14 = 1 | |
2367 | */ | |
2368 | temp = I915_READ(0x4600c); | |
2369 | temp &= 0xffff0000; | |
2370 | I915_WRITE(0x4600c, temp | 0x8124); | |
2371 | ||
2372 | temp = I915_READ(0x46010); | |
2373 | I915_WRITE(0x46010, temp | 1); | |
2374 | ||
2375 | temp = I915_READ(0x46034); | |
2376 | I915_WRITE(0x46034, temp | (1 << 24)); | |
2377 | } else { | |
2378 | dpa_ctl |= DP_PLL_FREQ_270MHZ; | |
2379 | } | |
2380 | I915_WRITE(DP_A, dpa_ctl); | |
2381 | ||
5eddb70b | 2382 | POSTING_READ(DP_A); |
32f9d658 ZW |
2383 | udelay(500); |
2384 | } | |
2385 | ||
5e84e1a4 ZW |
2386 | static void intel_fdi_normal_train(struct drm_crtc *crtc) |
2387 | { | |
2388 | struct drm_device *dev = crtc->dev; | |
2389 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2390 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2391 | int pipe = intel_crtc->pipe; | |
2392 | u32 reg, temp; | |
2393 | ||
2394 | /* enable normal train */ | |
2395 | reg = FDI_TX_CTL(pipe); | |
2396 | temp = I915_READ(reg); | |
61e499bf | 2397 | if (IS_IVYBRIDGE(dev)) { |
357555c0 JB |
2398 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
2399 | temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE; | |
61e499bf KP |
2400 | } else { |
2401 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2402 | temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE; | |
357555c0 | 2403 | } |
5e84e1a4 ZW |
2404 | I915_WRITE(reg, temp); |
2405 | ||
2406 | reg = FDI_RX_CTL(pipe); | |
2407 | temp = I915_READ(reg); | |
2408 | if (HAS_PCH_CPT(dev)) { | |
2409 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2410 | temp |= FDI_LINK_TRAIN_NORMAL_CPT; | |
2411 | } else { | |
2412 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2413 | temp |= FDI_LINK_TRAIN_NONE; | |
2414 | } | |
2415 | I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); | |
2416 | ||
2417 | /* wait one idle pattern time */ | |
2418 | POSTING_READ(reg); | |
2419 | udelay(1000); | |
357555c0 JB |
2420 | |
2421 | /* IVB wants error correction enabled */ | |
2422 | if (IS_IVYBRIDGE(dev)) | |
2423 | I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE | | |
2424 | FDI_FE_ERRC_ENABLE); | |
5e84e1a4 ZW |
2425 | } |
2426 | ||
291427f5 JB |
2427 | static void cpt_phase_pointer_enable(struct drm_device *dev, int pipe) |
2428 | { | |
2429 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2430 | u32 flags = I915_READ(SOUTH_CHICKEN1); | |
2431 | ||
2432 | flags |= FDI_PHASE_SYNC_OVR(pipe); | |
2433 | I915_WRITE(SOUTH_CHICKEN1, flags); /* once to unlock... */ | |
2434 | flags |= FDI_PHASE_SYNC_EN(pipe); | |
2435 | I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to enable */ | |
2436 | POSTING_READ(SOUTH_CHICKEN1); | |
2437 | } | |
2438 | ||
01a415fd DV |
2439 | static void ivb_modeset_global_resources(struct drm_device *dev) |
2440 | { | |
2441 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2442 | struct intel_crtc *pipe_B_crtc = | |
2443 | to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]); | |
2444 | struct intel_crtc *pipe_C_crtc = | |
2445 | to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_C]); | |
2446 | uint32_t temp; | |
2447 | ||
2448 | /* When everything is off disable fdi C so that we could enable fdi B | |
2449 | * with all lanes. XXX: This misses the case where a pipe is not using | |
2450 | * any pch resources and so doesn't need any fdi lanes. */ | |
2451 | if (!pipe_B_crtc->base.enabled && !pipe_C_crtc->base.enabled) { | |
2452 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE); | |
2453 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE); | |
2454 | ||
2455 | temp = I915_READ(SOUTH_CHICKEN1); | |
2456 | temp &= ~FDI_BC_BIFURCATION_SELECT; | |
2457 | DRM_DEBUG_KMS("disabling fdi C rx\n"); | |
2458 | I915_WRITE(SOUTH_CHICKEN1, temp); | |
2459 | } | |
2460 | } | |
2461 | ||
8db9d77b ZW |
2462 | /* The FDI link training functions for ILK/Ibexpeak. */ |
2463 | static void ironlake_fdi_link_train(struct drm_crtc *crtc) | |
2464 | { | |
2465 | struct drm_device *dev = crtc->dev; | |
2466 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2467 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2468 | int pipe = intel_crtc->pipe; | |
0fc932b8 | 2469 | int plane = intel_crtc->plane; |
5eddb70b | 2470 | u32 reg, temp, tries; |
8db9d77b | 2471 | |
0fc932b8 JB |
2472 | /* FDI needs bits from pipe & plane first */ |
2473 | assert_pipe_enabled(dev_priv, pipe); | |
2474 | assert_plane_enabled(dev_priv, plane); | |
2475 | ||
e1a44743 AJ |
2476 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
2477 | for train result */ | |
5eddb70b CW |
2478 | reg = FDI_RX_IMR(pipe); |
2479 | temp = I915_READ(reg); | |
e1a44743 AJ |
2480 | temp &= ~FDI_RX_SYMBOL_LOCK; |
2481 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
2482 | I915_WRITE(reg, temp); |
2483 | I915_READ(reg); | |
e1a44743 AJ |
2484 | udelay(150); |
2485 | ||
8db9d77b | 2486 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
2487 | reg = FDI_TX_CTL(pipe); |
2488 | temp = I915_READ(reg); | |
77ffb597 AJ |
2489 | temp &= ~(7 << 19); |
2490 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
8db9d77b ZW |
2491 | temp &= ~FDI_LINK_TRAIN_NONE; |
2492 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b | 2493 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 2494 | |
5eddb70b CW |
2495 | reg = FDI_RX_CTL(pipe); |
2496 | temp = I915_READ(reg); | |
8db9d77b ZW |
2497 | temp &= ~FDI_LINK_TRAIN_NONE; |
2498 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b CW |
2499 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2500 | ||
2501 | POSTING_READ(reg); | |
8db9d77b ZW |
2502 | udelay(150); |
2503 | ||
5b2adf89 | 2504 | /* Ironlake workaround, enable clock pointer after FDI enable*/ |
8f5718a6 DV |
2505 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); |
2506 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR | | |
2507 | FDI_RX_PHASE_SYNC_POINTER_EN); | |
5b2adf89 | 2508 | |
5eddb70b | 2509 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 2510 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 2511 | temp = I915_READ(reg); |
8db9d77b ZW |
2512 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2513 | ||
2514 | if ((temp & FDI_RX_BIT_LOCK)) { | |
2515 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
5eddb70b | 2516 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
8db9d77b ZW |
2517 | break; |
2518 | } | |
8db9d77b | 2519 | } |
e1a44743 | 2520 | if (tries == 5) |
5eddb70b | 2521 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
2522 | |
2523 | /* Train 2 */ | |
5eddb70b CW |
2524 | reg = FDI_TX_CTL(pipe); |
2525 | temp = I915_READ(reg); | |
8db9d77b ZW |
2526 | temp &= ~FDI_LINK_TRAIN_NONE; |
2527 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 2528 | I915_WRITE(reg, temp); |
8db9d77b | 2529 | |
5eddb70b CW |
2530 | reg = FDI_RX_CTL(pipe); |
2531 | temp = I915_READ(reg); | |
8db9d77b ZW |
2532 | temp &= ~FDI_LINK_TRAIN_NONE; |
2533 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 2534 | I915_WRITE(reg, temp); |
8db9d77b | 2535 | |
5eddb70b CW |
2536 | POSTING_READ(reg); |
2537 | udelay(150); | |
8db9d77b | 2538 | |
5eddb70b | 2539 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 2540 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 2541 | temp = I915_READ(reg); |
8db9d77b ZW |
2542 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2543 | ||
2544 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
5eddb70b | 2545 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
8db9d77b ZW |
2546 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
2547 | break; | |
2548 | } | |
8db9d77b | 2549 | } |
e1a44743 | 2550 | if (tries == 5) |
5eddb70b | 2551 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
2552 | |
2553 | DRM_DEBUG_KMS("FDI train done\n"); | |
5c5313c8 | 2554 | |
8db9d77b ZW |
2555 | } |
2556 | ||
0206e353 | 2557 | static const int snb_b_fdi_train_param[] = { |
8db9d77b ZW |
2558 | FDI_LINK_TRAIN_400MV_0DB_SNB_B, |
2559 | FDI_LINK_TRAIN_400MV_6DB_SNB_B, | |
2560 | FDI_LINK_TRAIN_600MV_3_5DB_SNB_B, | |
2561 | FDI_LINK_TRAIN_800MV_0DB_SNB_B, | |
2562 | }; | |
2563 | ||
2564 | /* The FDI link training functions for SNB/Cougarpoint. */ | |
2565 | static void gen6_fdi_link_train(struct drm_crtc *crtc) | |
2566 | { | |
2567 | struct drm_device *dev = crtc->dev; | |
2568 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2569 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2570 | int pipe = intel_crtc->pipe; | |
fa37d39e | 2571 | u32 reg, temp, i, retry; |
8db9d77b | 2572 | |
e1a44743 AJ |
2573 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
2574 | for train result */ | |
5eddb70b CW |
2575 | reg = FDI_RX_IMR(pipe); |
2576 | temp = I915_READ(reg); | |
e1a44743 AJ |
2577 | temp &= ~FDI_RX_SYMBOL_LOCK; |
2578 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
2579 | I915_WRITE(reg, temp); |
2580 | ||
2581 | POSTING_READ(reg); | |
e1a44743 AJ |
2582 | udelay(150); |
2583 | ||
8db9d77b | 2584 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
2585 | reg = FDI_TX_CTL(pipe); |
2586 | temp = I915_READ(reg); | |
77ffb597 AJ |
2587 | temp &= ~(7 << 19); |
2588 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
8db9d77b ZW |
2589 | temp &= ~FDI_LINK_TRAIN_NONE; |
2590 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2591 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2592 | /* SNB-B */ | |
2593 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
5eddb70b | 2594 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 2595 | |
d74cf324 DV |
2596 | I915_WRITE(FDI_RX_MISC(pipe), |
2597 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); | |
2598 | ||
5eddb70b CW |
2599 | reg = FDI_RX_CTL(pipe); |
2600 | temp = I915_READ(reg); | |
8db9d77b ZW |
2601 | if (HAS_PCH_CPT(dev)) { |
2602 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2603 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
2604 | } else { | |
2605 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2606 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2607 | } | |
5eddb70b CW |
2608 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2609 | ||
2610 | POSTING_READ(reg); | |
8db9d77b ZW |
2611 | udelay(150); |
2612 | ||
8f5718a6 | 2613 | cpt_phase_pointer_enable(dev, pipe); |
291427f5 | 2614 | |
0206e353 | 2615 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
2616 | reg = FDI_TX_CTL(pipe); |
2617 | temp = I915_READ(reg); | |
8db9d77b ZW |
2618 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
2619 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
2620 | I915_WRITE(reg, temp); |
2621 | ||
2622 | POSTING_READ(reg); | |
8db9d77b ZW |
2623 | udelay(500); |
2624 | ||
fa37d39e SP |
2625 | for (retry = 0; retry < 5; retry++) { |
2626 | reg = FDI_RX_IIR(pipe); | |
2627 | temp = I915_READ(reg); | |
2628 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2629 | if (temp & FDI_RX_BIT_LOCK) { | |
2630 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
2631 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
2632 | break; | |
2633 | } | |
2634 | udelay(50); | |
8db9d77b | 2635 | } |
fa37d39e SP |
2636 | if (retry < 5) |
2637 | break; | |
8db9d77b ZW |
2638 | } |
2639 | if (i == 4) | |
5eddb70b | 2640 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
2641 | |
2642 | /* Train 2 */ | |
5eddb70b CW |
2643 | reg = FDI_TX_CTL(pipe); |
2644 | temp = I915_READ(reg); | |
8db9d77b ZW |
2645 | temp &= ~FDI_LINK_TRAIN_NONE; |
2646 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
2647 | if (IS_GEN6(dev)) { | |
2648 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2649 | /* SNB-B */ | |
2650 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
2651 | } | |
5eddb70b | 2652 | I915_WRITE(reg, temp); |
8db9d77b | 2653 | |
5eddb70b CW |
2654 | reg = FDI_RX_CTL(pipe); |
2655 | temp = I915_READ(reg); | |
8db9d77b ZW |
2656 | if (HAS_PCH_CPT(dev)) { |
2657 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2658 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
2659 | } else { | |
2660 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2661 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
2662 | } | |
5eddb70b CW |
2663 | I915_WRITE(reg, temp); |
2664 | ||
2665 | POSTING_READ(reg); | |
8db9d77b ZW |
2666 | udelay(150); |
2667 | ||
0206e353 | 2668 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
2669 | reg = FDI_TX_CTL(pipe); |
2670 | temp = I915_READ(reg); | |
8db9d77b ZW |
2671 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
2672 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
2673 | I915_WRITE(reg, temp); |
2674 | ||
2675 | POSTING_READ(reg); | |
8db9d77b ZW |
2676 | udelay(500); |
2677 | ||
fa37d39e SP |
2678 | for (retry = 0; retry < 5; retry++) { |
2679 | reg = FDI_RX_IIR(pipe); | |
2680 | temp = I915_READ(reg); | |
2681 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2682 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
2683 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
2684 | DRM_DEBUG_KMS("FDI train 2 done.\n"); | |
2685 | break; | |
2686 | } | |
2687 | udelay(50); | |
8db9d77b | 2688 | } |
fa37d39e SP |
2689 | if (retry < 5) |
2690 | break; | |
8db9d77b ZW |
2691 | } |
2692 | if (i == 4) | |
5eddb70b | 2693 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
2694 | |
2695 | DRM_DEBUG_KMS("FDI train done.\n"); | |
2696 | } | |
2697 | ||
357555c0 JB |
2698 | /* Manual link training for Ivy Bridge A0 parts */ |
2699 | static void ivb_manual_fdi_link_train(struct drm_crtc *crtc) | |
2700 | { | |
2701 | struct drm_device *dev = crtc->dev; | |
2702 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2703 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2704 | int pipe = intel_crtc->pipe; | |
2705 | u32 reg, temp, i; | |
2706 | ||
2707 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit | |
2708 | for train result */ | |
2709 | reg = FDI_RX_IMR(pipe); | |
2710 | temp = I915_READ(reg); | |
2711 | temp &= ~FDI_RX_SYMBOL_LOCK; | |
2712 | temp &= ~FDI_RX_BIT_LOCK; | |
2713 | I915_WRITE(reg, temp); | |
2714 | ||
2715 | POSTING_READ(reg); | |
2716 | udelay(150); | |
2717 | ||
01a415fd DV |
2718 | DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n", |
2719 | I915_READ(FDI_RX_IIR(pipe))); | |
2720 | ||
357555c0 JB |
2721 | /* enable CPU FDI TX and PCH FDI RX */ |
2722 | reg = FDI_TX_CTL(pipe); | |
2723 | temp = I915_READ(reg); | |
2724 | temp &= ~(7 << 19); | |
2725 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
2726 | temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB); | |
2727 | temp |= FDI_LINK_TRAIN_PATTERN_1_IVB; | |
2728 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2729 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
c4f9c4c2 | 2730 | temp |= FDI_COMPOSITE_SYNC; |
357555c0 JB |
2731 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
2732 | ||
d74cf324 DV |
2733 | I915_WRITE(FDI_RX_MISC(pipe), |
2734 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); | |
2735 | ||
357555c0 JB |
2736 | reg = FDI_RX_CTL(pipe); |
2737 | temp = I915_READ(reg); | |
2738 | temp &= ~FDI_LINK_TRAIN_AUTO; | |
2739 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2740 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
c4f9c4c2 | 2741 | temp |= FDI_COMPOSITE_SYNC; |
357555c0 JB |
2742 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2743 | ||
2744 | POSTING_READ(reg); | |
2745 | udelay(150); | |
2746 | ||
8f5718a6 | 2747 | cpt_phase_pointer_enable(dev, pipe); |
291427f5 | 2748 | |
0206e353 | 2749 | for (i = 0; i < 4; i++) { |
357555c0 JB |
2750 | reg = FDI_TX_CTL(pipe); |
2751 | temp = I915_READ(reg); | |
2752 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2753 | temp |= snb_b_fdi_train_param[i]; | |
2754 | I915_WRITE(reg, temp); | |
2755 | ||
2756 | POSTING_READ(reg); | |
2757 | udelay(500); | |
2758 | ||
2759 | reg = FDI_RX_IIR(pipe); | |
2760 | temp = I915_READ(reg); | |
2761 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2762 | ||
2763 | if (temp & FDI_RX_BIT_LOCK || | |
2764 | (I915_READ(reg) & FDI_RX_BIT_LOCK)) { | |
2765 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
01a415fd | 2766 | DRM_DEBUG_KMS("FDI train 1 done, level %i.\n", i); |
357555c0 JB |
2767 | break; |
2768 | } | |
2769 | } | |
2770 | if (i == 4) | |
2771 | DRM_ERROR("FDI train 1 fail!\n"); | |
2772 | ||
2773 | /* Train 2 */ | |
2774 | reg = FDI_TX_CTL(pipe); | |
2775 | temp = I915_READ(reg); | |
2776 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; | |
2777 | temp |= FDI_LINK_TRAIN_PATTERN_2_IVB; | |
2778 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2779 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
2780 | I915_WRITE(reg, temp); | |
2781 | ||
2782 | reg = FDI_RX_CTL(pipe); | |
2783 | temp = I915_READ(reg); | |
2784 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2785 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
2786 | I915_WRITE(reg, temp); | |
2787 | ||
2788 | POSTING_READ(reg); | |
2789 | udelay(150); | |
2790 | ||
0206e353 | 2791 | for (i = 0; i < 4; i++) { |
357555c0 JB |
2792 | reg = FDI_TX_CTL(pipe); |
2793 | temp = I915_READ(reg); | |
2794 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2795 | temp |= snb_b_fdi_train_param[i]; | |
2796 | I915_WRITE(reg, temp); | |
2797 | ||
2798 | POSTING_READ(reg); | |
2799 | udelay(500); | |
2800 | ||
2801 | reg = FDI_RX_IIR(pipe); | |
2802 | temp = I915_READ(reg); | |
2803 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2804 | ||
2805 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
2806 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
01a415fd | 2807 | DRM_DEBUG_KMS("FDI train 2 done, level %i.\n", i); |
357555c0 JB |
2808 | break; |
2809 | } | |
2810 | } | |
2811 | if (i == 4) | |
2812 | DRM_ERROR("FDI train 2 fail!\n"); | |
2813 | ||
2814 | DRM_DEBUG_KMS("FDI train done.\n"); | |
2815 | } | |
2816 | ||
88cefb6c | 2817 | static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc) |
2c07245f | 2818 | { |
88cefb6c | 2819 | struct drm_device *dev = intel_crtc->base.dev; |
2c07245f | 2820 | struct drm_i915_private *dev_priv = dev->dev_private; |
2c07245f | 2821 | int pipe = intel_crtc->pipe; |
5eddb70b | 2822 | u32 reg, temp; |
79e53945 | 2823 | |
c64e311e | 2824 | |
c98e9dcf | 2825 | /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ |
5eddb70b CW |
2826 | reg = FDI_RX_CTL(pipe); |
2827 | temp = I915_READ(reg); | |
2828 | temp &= ~((0x7 << 19) | (0x7 << 16)); | |
c98e9dcf | 2829 | temp |= (intel_crtc->fdi_lanes - 1) << 19; |
5eddb70b CW |
2830 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; |
2831 | I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE); | |
2832 | ||
2833 | POSTING_READ(reg); | |
c98e9dcf JB |
2834 | udelay(200); |
2835 | ||
2836 | /* Switch from Rawclk to PCDclk */ | |
5eddb70b CW |
2837 | temp = I915_READ(reg); |
2838 | I915_WRITE(reg, temp | FDI_PCDCLK); | |
2839 | ||
2840 | POSTING_READ(reg); | |
c98e9dcf JB |
2841 | udelay(200); |
2842 | ||
bf507ef7 ED |
2843 | /* On Haswell, the PLL configuration for ports and pipes is handled |
2844 | * separately, as part of DDI setup */ | |
2845 | if (!IS_HASWELL(dev)) { | |
2846 | /* Enable CPU FDI TX PLL, always on for Ironlake */ | |
2847 | reg = FDI_TX_CTL(pipe); | |
2848 | temp = I915_READ(reg); | |
2849 | if ((temp & FDI_TX_PLL_ENABLE) == 0) { | |
2850 | I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE); | |
5eddb70b | 2851 | |
bf507ef7 ED |
2852 | POSTING_READ(reg); |
2853 | udelay(100); | |
2854 | } | |
6be4a607 | 2855 | } |
0e23b99d JB |
2856 | } |
2857 | ||
88cefb6c DV |
2858 | static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc) |
2859 | { | |
2860 | struct drm_device *dev = intel_crtc->base.dev; | |
2861 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2862 | int pipe = intel_crtc->pipe; | |
2863 | u32 reg, temp; | |
2864 | ||
2865 | /* Switch from PCDclk to Rawclk */ | |
2866 | reg = FDI_RX_CTL(pipe); | |
2867 | temp = I915_READ(reg); | |
2868 | I915_WRITE(reg, temp & ~FDI_PCDCLK); | |
2869 | ||
2870 | /* Disable CPU FDI TX PLL */ | |
2871 | reg = FDI_TX_CTL(pipe); | |
2872 | temp = I915_READ(reg); | |
2873 | I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE); | |
2874 | ||
2875 | POSTING_READ(reg); | |
2876 | udelay(100); | |
2877 | ||
2878 | reg = FDI_RX_CTL(pipe); | |
2879 | temp = I915_READ(reg); | |
2880 | I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE); | |
2881 | ||
2882 | /* Wait for the clocks to turn off. */ | |
2883 | POSTING_READ(reg); | |
2884 | udelay(100); | |
2885 | } | |
2886 | ||
291427f5 JB |
2887 | static void cpt_phase_pointer_disable(struct drm_device *dev, int pipe) |
2888 | { | |
2889 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2890 | u32 flags = I915_READ(SOUTH_CHICKEN1); | |
2891 | ||
2892 | flags &= ~(FDI_PHASE_SYNC_EN(pipe)); | |
2893 | I915_WRITE(SOUTH_CHICKEN1, flags); /* once to disable... */ | |
2894 | flags &= ~(FDI_PHASE_SYNC_OVR(pipe)); | |
2895 | I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to lock */ | |
2896 | POSTING_READ(SOUTH_CHICKEN1); | |
2897 | } | |
0fc932b8 JB |
2898 | static void ironlake_fdi_disable(struct drm_crtc *crtc) |
2899 | { | |
2900 | struct drm_device *dev = crtc->dev; | |
2901 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2902 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2903 | int pipe = intel_crtc->pipe; | |
2904 | u32 reg, temp; | |
2905 | ||
2906 | /* disable CPU FDI tx and PCH FDI rx */ | |
2907 | reg = FDI_TX_CTL(pipe); | |
2908 | temp = I915_READ(reg); | |
2909 | I915_WRITE(reg, temp & ~FDI_TX_ENABLE); | |
2910 | POSTING_READ(reg); | |
2911 | ||
2912 | reg = FDI_RX_CTL(pipe); | |
2913 | temp = I915_READ(reg); | |
2914 | temp &= ~(0x7 << 16); | |
2915 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; | |
2916 | I915_WRITE(reg, temp & ~FDI_RX_ENABLE); | |
2917 | ||
2918 | POSTING_READ(reg); | |
2919 | udelay(100); | |
2920 | ||
2921 | /* Ironlake workaround, disable clock pointer after downing FDI */ | |
6f06ce18 JB |
2922 | if (HAS_PCH_IBX(dev)) { |
2923 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); | |
291427f5 JB |
2924 | } else if (HAS_PCH_CPT(dev)) { |
2925 | cpt_phase_pointer_disable(dev, pipe); | |
6f06ce18 | 2926 | } |
0fc932b8 JB |
2927 | |
2928 | /* still set train pattern 1 */ | |
2929 | reg = FDI_TX_CTL(pipe); | |
2930 | temp = I915_READ(reg); | |
2931 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2932 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2933 | I915_WRITE(reg, temp); | |
2934 | ||
2935 | reg = FDI_RX_CTL(pipe); | |
2936 | temp = I915_READ(reg); | |
2937 | if (HAS_PCH_CPT(dev)) { | |
2938 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2939 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
2940 | } else { | |
2941 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2942 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2943 | } | |
2944 | /* BPC in FDI rx is consistent with that in PIPECONF */ | |
2945 | temp &= ~(0x07 << 16); | |
2946 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; | |
2947 | I915_WRITE(reg, temp); | |
2948 | ||
2949 | POSTING_READ(reg); | |
2950 | udelay(100); | |
2951 | } | |
2952 | ||
5bb61643 CW |
2953 | static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc) |
2954 | { | |
2955 | struct drm_device *dev = crtc->dev; | |
2956 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2957 | unsigned long flags; | |
2958 | bool pending; | |
2959 | ||
2960 | if (atomic_read(&dev_priv->mm.wedged)) | |
2961 | return false; | |
2962 | ||
2963 | spin_lock_irqsave(&dev->event_lock, flags); | |
2964 | pending = to_intel_crtc(crtc)->unpin_work != NULL; | |
2965 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
2966 | ||
2967 | return pending; | |
2968 | } | |
2969 | ||
e6c3a2a6 CW |
2970 | static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc) |
2971 | { | |
0f91128d | 2972 | struct drm_device *dev = crtc->dev; |
5bb61643 | 2973 | struct drm_i915_private *dev_priv = dev->dev_private; |
e6c3a2a6 CW |
2974 | |
2975 | if (crtc->fb == NULL) | |
2976 | return; | |
2977 | ||
5bb61643 CW |
2978 | wait_event(dev_priv->pending_flip_queue, |
2979 | !intel_crtc_has_pending_flip(crtc)); | |
2980 | ||
0f91128d CW |
2981 | mutex_lock(&dev->struct_mutex); |
2982 | intel_finish_fb(crtc->fb); | |
2983 | mutex_unlock(&dev->struct_mutex); | |
e6c3a2a6 CW |
2984 | } |
2985 | ||
fc316cbe | 2986 | static bool ironlake_crtc_driving_pch(struct drm_crtc *crtc) |
040484af JB |
2987 | { |
2988 | struct drm_device *dev = crtc->dev; | |
228d3e36 | 2989 | struct intel_encoder *intel_encoder; |
040484af JB |
2990 | |
2991 | /* | |
2992 | * If there's a non-PCH eDP on this crtc, it must be DP_A, and that | |
2993 | * must be driven by its own crtc; no sharing is possible. | |
2994 | */ | |
228d3e36 | 2995 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
228d3e36 | 2996 | switch (intel_encoder->type) { |
040484af | 2997 | case INTEL_OUTPUT_EDP: |
228d3e36 | 2998 | if (!intel_encoder_is_pch_edp(&intel_encoder->base)) |
040484af JB |
2999 | return false; |
3000 | continue; | |
3001 | } | |
3002 | } | |
3003 | ||
3004 | return true; | |
3005 | } | |
3006 | ||
fc316cbe PZ |
3007 | static bool haswell_crtc_driving_pch(struct drm_crtc *crtc) |
3008 | { | |
3009 | return intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG); | |
3010 | } | |
3011 | ||
e615efe4 ED |
3012 | /* Program iCLKIP clock to the desired frequency */ |
3013 | static void lpt_program_iclkip(struct drm_crtc *crtc) | |
3014 | { | |
3015 | struct drm_device *dev = crtc->dev; | |
3016 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3017 | u32 divsel, phaseinc, auxdiv, phasedir = 0; | |
3018 | u32 temp; | |
3019 | ||
3020 | /* It is necessary to ungate the pixclk gate prior to programming | |
3021 | * the divisors, and gate it back when it is done. | |
3022 | */ | |
3023 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE); | |
3024 | ||
3025 | /* Disable SSCCTL */ | |
3026 | intel_sbi_write(dev_priv, SBI_SSCCTL6, | |
3027 | intel_sbi_read(dev_priv, SBI_SSCCTL6) | | |
3028 | SBI_SSCCTL_DISABLE); | |
3029 | ||
3030 | /* 20MHz is a corner case which is out of range for the 7-bit divisor */ | |
3031 | if (crtc->mode.clock == 20000) { | |
3032 | auxdiv = 1; | |
3033 | divsel = 0x41; | |
3034 | phaseinc = 0x20; | |
3035 | } else { | |
3036 | /* The iCLK virtual clock root frequency is in MHz, | |
3037 | * but the crtc->mode.clock in in KHz. To get the divisors, | |
3038 | * it is necessary to divide one by another, so we | |
3039 | * convert the virtual clock precision to KHz here for higher | |
3040 | * precision. | |
3041 | */ | |
3042 | u32 iclk_virtual_root_freq = 172800 * 1000; | |
3043 | u32 iclk_pi_range = 64; | |
3044 | u32 desired_divisor, msb_divisor_value, pi_value; | |
3045 | ||
3046 | desired_divisor = (iclk_virtual_root_freq / crtc->mode.clock); | |
3047 | msb_divisor_value = desired_divisor / iclk_pi_range; | |
3048 | pi_value = desired_divisor % iclk_pi_range; | |
3049 | ||
3050 | auxdiv = 0; | |
3051 | divsel = msb_divisor_value - 2; | |
3052 | phaseinc = pi_value; | |
3053 | } | |
3054 | ||
3055 | /* This should not happen with any sane values */ | |
3056 | WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) & | |
3057 | ~SBI_SSCDIVINTPHASE_DIVSEL_MASK); | |
3058 | WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) & | |
3059 | ~SBI_SSCDIVINTPHASE_INCVAL_MASK); | |
3060 | ||
3061 | DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n", | |
3062 | crtc->mode.clock, | |
3063 | auxdiv, | |
3064 | divsel, | |
3065 | phasedir, | |
3066 | phaseinc); | |
3067 | ||
3068 | /* Program SSCDIVINTPHASE6 */ | |
3069 | temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6); | |
3070 | temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK; | |
3071 | temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel); | |
3072 | temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK; | |
3073 | temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc); | |
3074 | temp |= SBI_SSCDIVINTPHASE_DIR(phasedir); | |
3075 | temp |= SBI_SSCDIVINTPHASE_PROPAGATE; | |
3076 | ||
3077 | intel_sbi_write(dev_priv, | |
3078 | SBI_SSCDIVINTPHASE6, | |
3079 | temp); | |
3080 | ||
3081 | /* Program SSCAUXDIV */ | |
3082 | temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6); | |
3083 | temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1); | |
3084 | temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv); | |
3085 | intel_sbi_write(dev_priv, | |
3086 | SBI_SSCAUXDIV6, | |
3087 | temp); | |
3088 | ||
3089 | ||
3090 | /* Enable modulator and associated divider */ | |
3091 | temp = intel_sbi_read(dev_priv, SBI_SSCCTL6); | |
3092 | temp &= ~SBI_SSCCTL_DISABLE; | |
3093 | intel_sbi_write(dev_priv, | |
3094 | SBI_SSCCTL6, | |
3095 | temp); | |
3096 | ||
3097 | /* Wait for initialization time */ | |
3098 | udelay(24); | |
3099 | ||
3100 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE); | |
3101 | } | |
3102 | ||
f67a559d JB |
3103 | /* |
3104 | * Enable PCH resources required for PCH ports: | |
3105 | * - PCH PLLs | |
3106 | * - FDI training & RX/TX | |
3107 | * - update transcoder timings | |
3108 | * - DP transcoding bits | |
3109 | * - transcoder | |
3110 | */ | |
3111 | static void ironlake_pch_enable(struct drm_crtc *crtc) | |
0e23b99d JB |
3112 | { |
3113 | struct drm_device *dev = crtc->dev; | |
3114 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3115 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3116 | int pipe = intel_crtc->pipe; | |
ee7b9f93 | 3117 | u32 reg, temp; |
2c07245f | 3118 | |
e7e164db CW |
3119 | assert_transcoder_disabled(dev_priv, pipe); |
3120 | ||
cd986abb DV |
3121 | /* Write the TU size bits before fdi link training, so that error |
3122 | * detection works. */ | |
3123 | I915_WRITE(FDI_RX_TUSIZE1(pipe), | |
3124 | I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK); | |
3125 | ||
c98e9dcf | 3126 | /* For PCH output, training FDI link */ |
674cf967 | 3127 | dev_priv->display.fdi_link_train(crtc); |
2c07245f | 3128 | |
572deb37 DV |
3129 | /* XXX: pch pll's can be enabled any time before we enable the PCH |
3130 | * transcoder, and we actually should do this to not upset any PCH | |
3131 | * transcoder that already use the clock when we share it. | |
3132 | * | |
3133 | * Note that enable_pch_pll tries to do the right thing, but get_pch_pll | |
3134 | * unconditionally resets the pll - we need that to have the right LVDS | |
3135 | * enable sequence. */ | |
b6b4e185 | 3136 | ironlake_enable_pch_pll(intel_crtc); |
6f13b7b5 | 3137 | |
303b81e0 | 3138 | if (HAS_PCH_CPT(dev)) { |
ee7b9f93 | 3139 | u32 sel; |
4b645f14 | 3140 | |
c98e9dcf | 3141 | temp = I915_READ(PCH_DPLL_SEL); |
ee7b9f93 JB |
3142 | switch (pipe) { |
3143 | default: | |
3144 | case 0: | |
3145 | temp |= TRANSA_DPLL_ENABLE; | |
3146 | sel = TRANSA_DPLLB_SEL; | |
3147 | break; | |
3148 | case 1: | |
3149 | temp |= TRANSB_DPLL_ENABLE; | |
3150 | sel = TRANSB_DPLLB_SEL; | |
3151 | break; | |
3152 | case 2: | |
3153 | temp |= TRANSC_DPLL_ENABLE; | |
3154 | sel = TRANSC_DPLLB_SEL; | |
3155 | break; | |
d64311ab | 3156 | } |
ee7b9f93 JB |
3157 | if (intel_crtc->pch_pll->pll_reg == _PCH_DPLL_B) |
3158 | temp |= sel; | |
3159 | else | |
3160 | temp &= ~sel; | |
c98e9dcf | 3161 | I915_WRITE(PCH_DPLL_SEL, temp); |
c98e9dcf | 3162 | } |
5eddb70b | 3163 | |
d9b6cb56 JB |
3164 | /* set transcoder timing, panel must allow it */ |
3165 | assert_panel_unlocked(dev_priv, pipe); | |
5eddb70b CW |
3166 | I915_WRITE(TRANS_HTOTAL(pipe), I915_READ(HTOTAL(pipe))); |
3167 | I915_WRITE(TRANS_HBLANK(pipe), I915_READ(HBLANK(pipe))); | |
3168 | I915_WRITE(TRANS_HSYNC(pipe), I915_READ(HSYNC(pipe))); | |
8db9d77b | 3169 | |
5eddb70b CW |
3170 | I915_WRITE(TRANS_VTOTAL(pipe), I915_READ(VTOTAL(pipe))); |
3171 | I915_WRITE(TRANS_VBLANK(pipe), I915_READ(VBLANK(pipe))); | |
3172 | I915_WRITE(TRANS_VSYNC(pipe), I915_READ(VSYNC(pipe))); | |
0529a0d9 | 3173 | I915_WRITE(TRANS_VSYNCSHIFT(pipe), I915_READ(VSYNCSHIFT(pipe))); |
8db9d77b | 3174 | |
303b81e0 | 3175 | intel_fdi_normal_train(crtc); |
5e84e1a4 | 3176 | |
c98e9dcf JB |
3177 | /* For PCH DP, enable TRANS_DP_CTL */ |
3178 | if (HAS_PCH_CPT(dev) && | |
417e822d KP |
3179 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || |
3180 | intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) { | |
9325c9f0 | 3181 | u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) >> 5; |
5eddb70b CW |
3182 | reg = TRANS_DP_CTL(pipe); |
3183 | temp = I915_READ(reg); | |
3184 | temp &= ~(TRANS_DP_PORT_SEL_MASK | | |
220cad3c EA |
3185 | TRANS_DP_SYNC_MASK | |
3186 | TRANS_DP_BPC_MASK); | |
5eddb70b CW |
3187 | temp |= (TRANS_DP_OUTPUT_ENABLE | |
3188 | TRANS_DP_ENH_FRAMING); | |
9325c9f0 | 3189 | temp |= bpc << 9; /* same format but at 11:9 */ |
c98e9dcf JB |
3190 | |
3191 | if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) | |
5eddb70b | 3192 | temp |= TRANS_DP_HSYNC_ACTIVE_HIGH; |
c98e9dcf | 3193 | if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC) |
5eddb70b | 3194 | temp |= TRANS_DP_VSYNC_ACTIVE_HIGH; |
c98e9dcf JB |
3195 | |
3196 | switch (intel_trans_dp_port_sel(crtc)) { | |
3197 | case PCH_DP_B: | |
5eddb70b | 3198 | temp |= TRANS_DP_PORT_SEL_B; |
c98e9dcf JB |
3199 | break; |
3200 | case PCH_DP_C: | |
5eddb70b | 3201 | temp |= TRANS_DP_PORT_SEL_C; |
c98e9dcf JB |
3202 | break; |
3203 | case PCH_DP_D: | |
5eddb70b | 3204 | temp |= TRANS_DP_PORT_SEL_D; |
c98e9dcf JB |
3205 | break; |
3206 | default: | |
e95d41e1 | 3207 | BUG(); |
32f9d658 | 3208 | } |
2c07245f | 3209 | |
5eddb70b | 3210 | I915_WRITE(reg, temp); |
6be4a607 | 3211 | } |
b52eb4dc | 3212 | |
b8a4f404 | 3213 | ironlake_enable_pch_transcoder(dev_priv, pipe); |
f67a559d JB |
3214 | } |
3215 | ||
1507e5bd PZ |
3216 | static void lpt_pch_enable(struct drm_crtc *crtc) |
3217 | { | |
3218 | struct drm_device *dev = crtc->dev; | |
3219 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3220 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
daed2dbb | 3221 | enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder; |
1507e5bd | 3222 | |
daed2dbb | 3223 | assert_transcoder_disabled(dev_priv, TRANSCODER_A); |
1507e5bd | 3224 | |
8c52b5e8 | 3225 | lpt_program_iclkip(crtc); |
1507e5bd | 3226 | |
0540e488 | 3227 | /* Set transcoder timing. */ |
daed2dbb PZ |
3228 | I915_WRITE(_TRANS_HTOTAL_A, I915_READ(HTOTAL(cpu_transcoder))); |
3229 | I915_WRITE(_TRANS_HBLANK_A, I915_READ(HBLANK(cpu_transcoder))); | |
3230 | I915_WRITE(_TRANS_HSYNC_A, I915_READ(HSYNC(cpu_transcoder))); | |
1507e5bd | 3231 | |
daed2dbb PZ |
3232 | I915_WRITE(_TRANS_VTOTAL_A, I915_READ(VTOTAL(cpu_transcoder))); |
3233 | I915_WRITE(_TRANS_VBLANK_A, I915_READ(VBLANK(cpu_transcoder))); | |
3234 | I915_WRITE(_TRANS_VSYNC_A, I915_READ(VSYNC(cpu_transcoder))); | |
3235 | I915_WRITE(_TRANS_VSYNCSHIFT_A, I915_READ(VSYNCSHIFT(cpu_transcoder))); | |
1507e5bd | 3236 | |
937bb610 | 3237 | lpt_enable_pch_transcoder(dev_priv, cpu_transcoder); |
f67a559d JB |
3238 | } |
3239 | ||
ee7b9f93 JB |
3240 | static void intel_put_pch_pll(struct intel_crtc *intel_crtc) |
3241 | { | |
3242 | struct intel_pch_pll *pll = intel_crtc->pch_pll; | |
3243 | ||
3244 | if (pll == NULL) | |
3245 | return; | |
3246 | ||
3247 | if (pll->refcount == 0) { | |
3248 | WARN(1, "bad PCH PLL refcount\n"); | |
3249 | return; | |
3250 | } | |
3251 | ||
3252 | --pll->refcount; | |
3253 | intel_crtc->pch_pll = NULL; | |
3254 | } | |
3255 | ||
3256 | static struct intel_pch_pll *intel_get_pch_pll(struct intel_crtc *intel_crtc, u32 dpll, u32 fp) | |
3257 | { | |
3258 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; | |
3259 | struct intel_pch_pll *pll; | |
3260 | int i; | |
3261 | ||
3262 | pll = intel_crtc->pch_pll; | |
3263 | if (pll) { | |
3264 | DRM_DEBUG_KMS("CRTC:%d reusing existing PCH PLL %x\n", | |
3265 | intel_crtc->base.base.id, pll->pll_reg); | |
3266 | goto prepare; | |
3267 | } | |
3268 | ||
98b6bd99 DV |
3269 | if (HAS_PCH_IBX(dev_priv->dev)) { |
3270 | /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */ | |
3271 | i = intel_crtc->pipe; | |
3272 | pll = &dev_priv->pch_plls[i]; | |
3273 | ||
3274 | DRM_DEBUG_KMS("CRTC:%d using pre-allocated PCH PLL %x\n", | |
3275 | intel_crtc->base.base.id, pll->pll_reg); | |
3276 | ||
3277 | goto found; | |
3278 | } | |
3279 | ||
ee7b9f93 JB |
3280 | for (i = 0; i < dev_priv->num_pch_pll; i++) { |
3281 | pll = &dev_priv->pch_plls[i]; | |
3282 | ||
3283 | /* Only want to check enabled timings first */ | |
3284 | if (pll->refcount == 0) | |
3285 | continue; | |
3286 | ||
3287 | if (dpll == (I915_READ(pll->pll_reg) & 0x7fffffff) && | |
3288 | fp == I915_READ(pll->fp0_reg)) { | |
3289 | DRM_DEBUG_KMS("CRTC:%d sharing existing PCH PLL %x (refcount %d, ative %d)\n", | |
3290 | intel_crtc->base.base.id, | |
3291 | pll->pll_reg, pll->refcount, pll->active); | |
3292 | ||
3293 | goto found; | |
3294 | } | |
3295 | } | |
3296 | ||
3297 | /* Ok no matching timings, maybe there's a free one? */ | |
3298 | for (i = 0; i < dev_priv->num_pch_pll; i++) { | |
3299 | pll = &dev_priv->pch_plls[i]; | |
3300 | if (pll->refcount == 0) { | |
3301 | DRM_DEBUG_KMS("CRTC:%d allocated PCH PLL %x\n", | |
3302 | intel_crtc->base.base.id, pll->pll_reg); | |
3303 | goto found; | |
3304 | } | |
3305 | } | |
3306 | ||
3307 | return NULL; | |
3308 | ||
3309 | found: | |
3310 | intel_crtc->pch_pll = pll; | |
3311 | pll->refcount++; | |
3312 | DRM_DEBUG_DRIVER("using pll %d for pipe %d\n", i, intel_crtc->pipe); | |
3313 | prepare: /* separate function? */ | |
3314 | DRM_DEBUG_DRIVER("switching PLL %x off\n", pll->pll_reg); | |
ee7b9f93 | 3315 | |
e04c7350 CW |
3316 | /* Wait for the clocks to stabilize before rewriting the regs */ |
3317 | I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE); | |
ee7b9f93 JB |
3318 | POSTING_READ(pll->pll_reg); |
3319 | udelay(150); | |
e04c7350 CW |
3320 | |
3321 | I915_WRITE(pll->fp0_reg, fp); | |
3322 | I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE); | |
ee7b9f93 JB |
3323 | pll->on = false; |
3324 | return pll; | |
3325 | } | |
3326 | ||
d4270e57 JB |
3327 | void intel_cpt_verify_modeset(struct drm_device *dev, int pipe) |
3328 | { | |
3329 | struct drm_i915_private *dev_priv = dev->dev_private; | |
23670b32 | 3330 | int dslreg = PIPEDSL(pipe); |
d4270e57 JB |
3331 | u32 temp; |
3332 | ||
3333 | temp = I915_READ(dslreg); | |
3334 | udelay(500); | |
3335 | if (wait_for(I915_READ(dslreg) != temp, 5)) { | |
d4270e57 JB |
3336 | if (wait_for(I915_READ(dslreg) != temp, 5)) |
3337 | DRM_ERROR("mode set failed: pipe %d stuck\n", pipe); | |
3338 | } | |
3339 | } | |
3340 | ||
f67a559d JB |
3341 | static void ironlake_crtc_enable(struct drm_crtc *crtc) |
3342 | { | |
3343 | struct drm_device *dev = crtc->dev; | |
3344 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3345 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3346 | struct intel_encoder *encoder; |
f67a559d JB |
3347 | int pipe = intel_crtc->pipe; |
3348 | int plane = intel_crtc->plane; | |
3349 | u32 temp; | |
3350 | bool is_pch_port; | |
3351 | ||
08a48469 DV |
3352 | WARN_ON(!crtc->enabled); |
3353 | ||
f67a559d JB |
3354 | if (intel_crtc->active) |
3355 | return; | |
3356 | ||
3357 | intel_crtc->active = true; | |
3358 | intel_update_watermarks(dev); | |
3359 | ||
3360 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
3361 | temp = I915_READ(PCH_LVDS); | |
3362 | if ((temp & LVDS_PORT_EN) == 0) | |
3363 | I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN); | |
3364 | } | |
3365 | ||
fc316cbe | 3366 | is_pch_port = ironlake_crtc_driving_pch(crtc); |
f67a559d | 3367 | |
46b6f814 | 3368 | if (is_pch_port) { |
fff367c7 DV |
3369 | /* Note: FDI PLL enabling _must_ be done before we enable the |
3370 | * cpu pipes, hence this is separate from all the other fdi/pch | |
3371 | * enabling. */ | |
88cefb6c | 3372 | ironlake_fdi_pll_enable(intel_crtc); |
46b6f814 DV |
3373 | } else { |
3374 | assert_fdi_tx_disabled(dev_priv, pipe); | |
3375 | assert_fdi_rx_disabled(dev_priv, pipe); | |
3376 | } | |
f67a559d | 3377 | |
bf49ec8c DV |
3378 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3379 | if (encoder->pre_enable) | |
3380 | encoder->pre_enable(encoder); | |
f67a559d JB |
3381 | |
3382 | /* Enable panel fitting for LVDS */ | |
3383 | if (dev_priv->pch_pf_size && | |
547dc041 JN |
3384 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) || |
3385 | intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) { | |
f67a559d JB |
3386 | /* Force use of hard-coded filter coefficients |
3387 | * as some pre-programmed values are broken, | |
3388 | * e.g. x201. | |
3389 | */ | |
13888d78 PZ |
3390 | if (IS_IVYBRIDGE(dev)) |
3391 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 | | |
3392 | PF_PIPE_SEL_IVB(pipe)); | |
3393 | else | |
3394 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3); | |
9db4a9c7 JB |
3395 | I915_WRITE(PF_WIN_POS(pipe), dev_priv->pch_pf_pos); |
3396 | I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size); | |
f67a559d JB |
3397 | } |
3398 | ||
9c54c0dd JB |
3399 | /* |
3400 | * On ILK+ LUT must be loaded before the pipe is running but with | |
3401 | * clocks enabled | |
3402 | */ | |
3403 | intel_crtc_load_lut(crtc); | |
3404 | ||
f67a559d JB |
3405 | intel_enable_pipe(dev_priv, pipe, is_pch_port); |
3406 | intel_enable_plane(dev_priv, plane, pipe); | |
3407 | ||
3408 | if (is_pch_port) | |
3409 | ironlake_pch_enable(crtc); | |
c98e9dcf | 3410 | |
d1ebd816 | 3411 | mutex_lock(&dev->struct_mutex); |
bed4a673 | 3412 | intel_update_fbc(dev); |
d1ebd816 BW |
3413 | mutex_unlock(&dev->struct_mutex); |
3414 | ||
6b383a7f | 3415 | intel_crtc_update_cursor(crtc, true); |
ef9c3aee | 3416 | |
fa5c73b1 DV |
3417 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3418 | encoder->enable(encoder); | |
61b77ddd DV |
3419 | |
3420 | if (HAS_PCH_CPT(dev)) | |
3421 | intel_cpt_verify_modeset(dev, intel_crtc->pipe); | |
6ce94100 DV |
3422 | |
3423 | /* | |
3424 | * There seems to be a race in PCH platform hw (at least on some | |
3425 | * outputs) where an enabled pipe still completes any pageflip right | |
3426 | * away (as if the pipe is off) instead of waiting for vblank. As soon | |
3427 | * as the first vblank happend, everything works as expected. Hence just | |
3428 | * wait for one vblank before returning to avoid strange things | |
3429 | * happening. | |
3430 | */ | |
3431 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
6be4a607 JB |
3432 | } |
3433 | ||
4f771f10 PZ |
3434 | static void haswell_crtc_enable(struct drm_crtc *crtc) |
3435 | { | |
3436 | struct drm_device *dev = crtc->dev; | |
3437 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3438 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3439 | struct intel_encoder *encoder; | |
3440 | int pipe = intel_crtc->pipe; | |
3441 | int plane = intel_crtc->plane; | |
4f771f10 PZ |
3442 | bool is_pch_port; |
3443 | ||
3444 | WARN_ON(!crtc->enabled); | |
3445 | ||
3446 | if (intel_crtc->active) | |
3447 | return; | |
3448 | ||
3449 | intel_crtc->active = true; | |
3450 | intel_update_watermarks(dev); | |
3451 | ||
fc316cbe | 3452 | is_pch_port = haswell_crtc_driving_pch(crtc); |
4f771f10 | 3453 | |
83616634 | 3454 | if (is_pch_port) |
04945641 | 3455 | dev_priv->display.fdi_link_train(crtc); |
4f771f10 PZ |
3456 | |
3457 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3458 | if (encoder->pre_enable) | |
3459 | encoder->pre_enable(encoder); | |
3460 | ||
1f544388 | 3461 | intel_ddi_enable_pipe_clock(intel_crtc); |
4f771f10 | 3462 | |
1f544388 | 3463 | /* Enable panel fitting for eDP */ |
547dc041 JN |
3464 | if (dev_priv->pch_pf_size && |
3465 | intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) { | |
4f771f10 PZ |
3466 | /* Force use of hard-coded filter coefficients |
3467 | * as some pre-programmed values are broken, | |
3468 | * e.g. x201. | |
3469 | */ | |
54075a7d PZ |
3470 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 | |
3471 | PF_PIPE_SEL_IVB(pipe)); | |
4f771f10 PZ |
3472 | I915_WRITE(PF_WIN_POS(pipe), dev_priv->pch_pf_pos); |
3473 | I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size); | |
3474 | } | |
3475 | ||
3476 | /* | |
3477 | * On ILK+ LUT must be loaded before the pipe is running but with | |
3478 | * clocks enabled | |
3479 | */ | |
3480 | intel_crtc_load_lut(crtc); | |
3481 | ||
1f544388 PZ |
3482 | intel_ddi_set_pipe_settings(crtc); |
3483 | intel_ddi_enable_pipe_func(crtc); | |
4f771f10 PZ |
3484 | |
3485 | intel_enable_pipe(dev_priv, pipe, is_pch_port); | |
3486 | intel_enable_plane(dev_priv, plane, pipe); | |
3487 | ||
3488 | if (is_pch_port) | |
1507e5bd | 3489 | lpt_pch_enable(crtc); |
4f771f10 PZ |
3490 | |
3491 | mutex_lock(&dev->struct_mutex); | |
3492 | intel_update_fbc(dev); | |
3493 | mutex_unlock(&dev->struct_mutex); | |
3494 | ||
3495 | intel_crtc_update_cursor(crtc, true); | |
3496 | ||
3497 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3498 | encoder->enable(encoder); | |
3499 | ||
4f771f10 PZ |
3500 | /* |
3501 | * There seems to be a race in PCH platform hw (at least on some | |
3502 | * outputs) where an enabled pipe still completes any pageflip right | |
3503 | * away (as if the pipe is off) instead of waiting for vblank. As soon | |
3504 | * as the first vblank happend, everything works as expected. Hence just | |
3505 | * wait for one vblank before returning to avoid strange things | |
3506 | * happening. | |
3507 | */ | |
3508 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
3509 | } | |
3510 | ||
6be4a607 JB |
3511 | static void ironlake_crtc_disable(struct drm_crtc *crtc) |
3512 | { | |
3513 | struct drm_device *dev = crtc->dev; | |
3514 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3515 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3516 | struct intel_encoder *encoder; |
6be4a607 JB |
3517 | int pipe = intel_crtc->pipe; |
3518 | int plane = intel_crtc->plane; | |
5eddb70b | 3519 | u32 reg, temp; |
b52eb4dc | 3520 | |
ef9c3aee | 3521 | |
f7abfe8b CW |
3522 | if (!intel_crtc->active) |
3523 | return; | |
3524 | ||
ea9d758d DV |
3525 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3526 | encoder->disable(encoder); | |
3527 | ||
e6c3a2a6 | 3528 | intel_crtc_wait_for_pending_flips(crtc); |
6be4a607 | 3529 | drm_vblank_off(dev, pipe); |
6b383a7f | 3530 | intel_crtc_update_cursor(crtc, false); |
5eddb70b | 3531 | |
b24e7179 | 3532 | intel_disable_plane(dev_priv, plane, pipe); |
913d8d11 | 3533 | |
973d04f9 CW |
3534 | if (dev_priv->cfb_plane == plane) |
3535 | intel_disable_fbc(dev); | |
2c07245f | 3536 | |
b24e7179 | 3537 | intel_disable_pipe(dev_priv, pipe); |
32f9d658 | 3538 | |
6be4a607 | 3539 | /* Disable PF */ |
9db4a9c7 JB |
3540 | I915_WRITE(PF_CTL(pipe), 0); |
3541 | I915_WRITE(PF_WIN_SZ(pipe), 0); | |
2c07245f | 3542 | |
bf49ec8c DV |
3543 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3544 | if (encoder->post_disable) | |
3545 | encoder->post_disable(encoder); | |
2c07245f | 3546 | |
0fc932b8 | 3547 | ironlake_fdi_disable(crtc); |
249c0e64 | 3548 | |
b8a4f404 | 3549 | ironlake_disable_pch_transcoder(dev_priv, pipe); |
913d8d11 | 3550 | |
6be4a607 JB |
3551 | if (HAS_PCH_CPT(dev)) { |
3552 | /* disable TRANS_DP_CTL */ | |
5eddb70b CW |
3553 | reg = TRANS_DP_CTL(pipe); |
3554 | temp = I915_READ(reg); | |
3555 | temp &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK); | |
cb3543c6 | 3556 | temp |= TRANS_DP_PORT_SEL_NONE; |
5eddb70b | 3557 | I915_WRITE(reg, temp); |
6be4a607 JB |
3558 | |
3559 | /* disable DPLL_SEL */ | |
3560 | temp = I915_READ(PCH_DPLL_SEL); | |
9db4a9c7 JB |
3561 | switch (pipe) { |
3562 | case 0: | |
d64311ab | 3563 | temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL); |
9db4a9c7 JB |
3564 | break; |
3565 | case 1: | |
6be4a607 | 3566 | temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); |
9db4a9c7 JB |
3567 | break; |
3568 | case 2: | |
4b645f14 | 3569 | /* C shares PLL A or B */ |
d64311ab | 3570 | temp &= ~(TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL); |
9db4a9c7 JB |
3571 | break; |
3572 | default: | |
3573 | BUG(); /* wtf */ | |
3574 | } | |
6be4a607 | 3575 | I915_WRITE(PCH_DPLL_SEL, temp); |
6be4a607 | 3576 | } |
e3421a18 | 3577 | |
6be4a607 | 3578 | /* disable PCH DPLL */ |
ee7b9f93 | 3579 | intel_disable_pch_pll(intel_crtc); |
8db9d77b | 3580 | |
88cefb6c | 3581 | ironlake_fdi_pll_disable(intel_crtc); |
6b383a7f | 3582 | |
f7abfe8b | 3583 | intel_crtc->active = false; |
6b383a7f | 3584 | intel_update_watermarks(dev); |
d1ebd816 BW |
3585 | |
3586 | mutex_lock(&dev->struct_mutex); | |
6b383a7f | 3587 | intel_update_fbc(dev); |
d1ebd816 | 3588 | mutex_unlock(&dev->struct_mutex); |
6be4a607 | 3589 | } |
1b3c7a47 | 3590 | |
4f771f10 | 3591 | static void haswell_crtc_disable(struct drm_crtc *crtc) |
ee7b9f93 | 3592 | { |
4f771f10 PZ |
3593 | struct drm_device *dev = crtc->dev; |
3594 | struct drm_i915_private *dev_priv = dev->dev_private; | |
ee7b9f93 | 3595 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
4f771f10 PZ |
3596 | struct intel_encoder *encoder; |
3597 | int pipe = intel_crtc->pipe; | |
3598 | int plane = intel_crtc->plane; | |
ad80a810 | 3599 | enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder; |
83616634 | 3600 | bool is_pch_port; |
ee7b9f93 | 3601 | |
4f771f10 PZ |
3602 | if (!intel_crtc->active) |
3603 | return; | |
3604 | ||
83616634 PZ |
3605 | is_pch_port = haswell_crtc_driving_pch(crtc); |
3606 | ||
4f771f10 PZ |
3607 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3608 | encoder->disable(encoder); | |
3609 | ||
3610 | intel_crtc_wait_for_pending_flips(crtc); | |
3611 | drm_vblank_off(dev, pipe); | |
3612 | intel_crtc_update_cursor(crtc, false); | |
3613 | ||
3614 | intel_disable_plane(dev_priv, plane, pipe); | |
3615 | ||
3616 | if (dev_priv->cfb_plane == plane) | |
3617 | intel_disable_fbc(dev); | |
3618 | ||
3619 | intel_disable_pipe(dev_priv, pipe); | |
3620 | ||
ad80a810 | 3621 | intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder); |
4f771f10 PZ |
3622 | |
3623 | /* Disable PF */ | |
3624 | I915_WRITE(PF_CTL(pipe), 0); | |
3625 | I915_WRITE(PF_WIN_SZ(pipe), 0); | |
3626 | ||
1f544388 | 3627 | intel_ddi_disable_pipe_clock(intel_crtc); |
4f771f10 PZ |
3628 | |
3629 | for_each_encoder_on_crtc(dev, crtc, encoder) | |
3630 | if (encoder->post_disable) | |
3631 | encoder->post_disable(encoder); | |
3632 | ||
83616634 | 3633 | if (is_pch_port) { |
ab4d966c | 3634 | lpt_disable_pch_transcoder(dev_priv); |
1ad960f2 | 3635 | intel_ddi_fdi_disable(crtc); |
83616634 | 3636 | } |
4f771f10 PZ |
3637 | |
3638 | intel_crtc->active = false; | |
3639 | intel_update_watermarks(dev); | |
3640 | ||
3641 | mutex_lock(&dev->struct_mutex); | |
3642 | intel_update_fbc(dev); | |
3643 | mutex_unlock(&dev->struct_mutex); | |
3644 | } | |
3645 | ||
ee7b9f93 JB |
3646 | static void ironlake_crtc_off(struct drm_crtc *crtc) |
3647 | { | |
3648 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3649 | intel_put_pch_pll(intel_crtc); | |
3650 | } | |
3651 | ||
6441ab5f PZ |
3652 | static void haswell_crtc_off(struct drm_crtc *crtc) |
3653 | { | |
a5c961d1 PZ |
3654 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
3655 | ||
3656 | /* Stop saying we're using TRANSCODER_EDP because some other CRTC might | |
3657 | * start using it. */ | |
3658 | intel_crtc->cpu_transcoder = intel_crtc->pipe; | |
3659 | ||
6441ab5f PZ |
3660 | intel_ddi_put_crtc_pll(crtc); |
3661 | } | |
3662 | ||
02e792fb DV |
3663 | static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable) |
3664 | { | |
02e792fb | 3665 | if (!enable && intel_crtc->overlay) { |
23f09ce3 | 3666 | struct drm_device *dev = intel_crtc->base.dev; |
ce453d81 | 3667 | struct drm_i915_private *dev_priv = dev->dev_private; |
03f77ea5 | 3668 | |
23f09ce3 | 3669 | mutex_lock(&dev->struct_mutex); |
ce453d81 CW |
3670 | dev_priv->mm.interruptible = false; |
3671 | (void) intel_overlay_switch_off(intel_crtc->overlay); | |
3672 | dev_priv->mm.interruptible = true; | |
23f09ce3 | 3673 | mutex_unlock(&dev->struct_mutex); |
02e792fb | 3674 | } |
02e792fb | 3675 | |
5dcdbcb0 CW |
3676 | /* Let userspace switch the overlay on again. In most cases userspace |
3677 | * has to recompute where to put it anyway. | |
3678 | */ | |
02e792fb DV |
3679 | } |
3680 | ||
0b8765c6 | 3681 | static void i9xx_crtc_enable(struct drm_crtc *crtc) |
79e53945 JB |
3682 | { |
3683 | struct drm_device *dev = crtc->dev; | |
79e53945 JB |
3684 | struct drm_i915_private *dev_priv = dev->dev_private; |
3685 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3686 | struct intel_encoder *encoder; |
79e53945 | 3687 | int pipe = intel_crtc->pipe; |
80824003 | 3688 | int plane = intel_crtc->plane; |
79e53945 | 3689 | |
08a48469 DV |
3690 | WARN_ON(!crtc->enabled); |
3691 | ||
f7abfe8b CW |
3692 | if (intel_crtc->active) |
3693 | return; | |
3694 | ||
3695 | intel_crtc->active = true; | |
6b383a7f CW |
3696 | intel_update_watermarks(dev); |
3697 | ||
63d7bbe9 | 3698 | intel_enable_pll(dev_priv, pipe); |
040484af | 3699 | intel_enable_pipe(dev_priv, pipe, false); |
b24e7179 | 3700 | intel_enable_plane(dev_priv, plane, pipe); |
79e53945 | 3701 | |
0b8765c6 | 3702 | intel_crtc_load_lut(crtc); |
bed4a673 | 3703 | intel_update_fbc(dev); |
79e53945 | 3704 | |
0b8765c6 JB |
3705 | /* Give the overlay scaler a chance to enable if it's on this pipe */ |
3706 | intel_crtc_dpms_overlay(intel_crtc, true); | |
6b383a7f | 3707 | intel_crtc_update_cursor(crtc, true); |
ef9c3aee | 3708 | |
fa5c73b1 DV |
3709 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3710 | encoder->enable(encoder); | |
0b8765c6 | 3711 | } |
79e53945 | 3712 | |
0b8765c6 JB |
3713 | static void i9xx_crtc_disable(struct drm_crtc *crtc) |
3714 | { | |
3715 | struct drm_device *dev = crtc->dev; | |
3716 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3717 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3718 | struct intel_encoder *encoder; |
0b8765c6 JB |
3719 | int pipe = intel_crtc->pipe; |
3720 | int plane = intel_crtc->plane; | |
b690e96c | 3721 | |
ef9c3aee | 3722 | |
f7abfe8b CW |
3723 | if (!intel_crtc->active) |
3724 | return; | |
3725 | ||
ea9d758d DV |
3726 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3727 | encoder->disable(encoder); | |
3728 | ||
0b8765c6 | 3729 | /* Give the overlay scaler a chance to disable if it's on this pipe */ |
e6c3a2a6 CW |
3730 | intel_crtc_wait_for_pending_flips(crtc); |
3731 | drm_vblank_off(dev, pipe); | |
0b8765c6 | 3732 | intel_crtc_dpms_overlay(intel_crtc, false); |
6b383a7f | 3733 | intel_crtc_update_cursor(crtc, false); |
0b8765c6 | 3734 | |
973d04f9 CW |
3735 | if (dev_priv->cfb_plane == plane) |
3736 | intel_disable_fbc(dev); | |
79e53945 | 3737 | |
b24e7179 | 3738 | intel_disable_plane(dev_priv, plane, pipe); |
b24e7179 | 3739 | intel_disable_pipe(dev_priv, pipe); |
63d7bbe9 | 3740 | intel_disable_pll(dev_priv, pipe); |
0b8765c6 | 3741 | |
f7abfe8b | 3742 | intel_crtc->active = false; |
6b383a7f CW |
3743 | intel_update_fbc(dev); |
3744 | intel_update_watermarks(dev); | |
0b8765c6 JB |
3745 | } |
3746 | ||
ee7b9f93 JB |
3747 | static void i9xx_crtc_off(struct drm_crtc *crtc) |
3748 | { | |
3749 | } | |
3750 | ||
976f8a20 DV |
3751 | static void intel_crtc_update_sarea(struct drm_crtc *crtc, |
3752 | bool enabled) | |
2c07245f ZW |
3753 | { |
3754 | struct drm_device *dev = crtc->dev; | |
3755 | struct drm_i915_master_private *master_priv; | |
3756 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3757 | int pipe = intel_crtc->pipe; | |
79e53945 JB |
3758 | |
3759 | if (!dev->primary->master) | |
3760 | return; | |
3761 | ||
3762 | master_priv = dev->primary->master->driver_priv; | |
3763 | if (!master_priv->sarea_priv) | |
3764 | return; | |
3765 | ||
79e53945 JB |
3766 | switch (pipe) { |
3767 | case 0: | |
3768 | master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0; | |
3769 | master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0; | |
3770 | break; | |
3771 | case 1: | |
3772 | master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0; | |
3773 | master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0; | |
3774 | break; | |
3775 | default: | |
9db4a9c7 | 3776 | DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe)); |
79e53945 JB |
3777 | break; |
3778 | } | |
79e53945 JB |
3779 | } |
3780 | ||
976f8a20 DV |
3781 | /** |
3782 | * Sets the power management mode of the pipe and plane. | |
3783 | */ | |
3784 | void intel_crtc_update_dpms(struct drm_crtc *crtc) | |
3785 | { | |
3786 | struct drm_device *dev = crtc->dev; | |
3787 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3788 | struct intel_encoder *intel_encoder; | |
3789 | bool enable = false; | |
3790 | ||
3791 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) | |
3792 | enable |= intel_encoder->connectors_active; | |
3793 | ||
3794 | if (enable) | |
3795 | dev_priv->display.crtc_enable(crtc); | |
3796 | else | |
3797 | dev_priv->display.crtc_disable(crtc); | |
3798 | ||
3799 | intel_crtc_update_sarea(crtc, enable); | |
3800 | } | |
3801 | ||
3802 | static void intel_crtc_noop(struct drm_crtc *crtc) | |
3803 | { | |
3804 | } | |
3805 | ||
cdd59983 CW |
3806 | static void intel_crtc_disable(struct drm_crtc *crtc) |
3807 | { | |
cdd59983 | 3808 | struct drm_device *dev = crtc->dev; |
976f8a20 | 3809 | struct drm_connector *connector; |
ee7b9f93 | 3810 | struct drm_i915_private *dev_priv = dev->dev_private; |
cdd59983 | 3811 | |
976f8a20 DV |
3812 | /* crtc should still be enabled when we disable it. */ |
3813 | WARN_ON(!crtc->enabled); | |
3814 | ||
3815 | dev_priv->display.crtc_disable(crtc); | |
3816 | intel_crtc_update_sarea(crtc, false); | |
ee7b9f93 JB |
3817 | dev_priv->display.off(crtc); |
3818 | ||
931872fc CW |
3819 | assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane); |
3820 | assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe); | |
cdd59983 CW |
3821 | |
3822 | if (crtc->fb) { | |
3823 | mutex_lock(&dev->struct_mutex); | |
1690e1eb | 3824 | intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj); |
cdd59983 | 3825 | mutex_unlock(&dev->struct_mutex); |
976f8a20 DV |
3826 | crtc->fb = NULL; |
3827 | } | |
3828 | ||
3829 | /* Update computed state. */ | |
3830 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
3831 | if (!connector->encoder || !connector->encoder->crtc) | |
3832 | continue; | |
3833 | ||
3834 | if (connector->encoder->crtc != crtc) | |
3835 | continue; | |
3836 | ||
3837 | connector->dpms = DRM_MODE_DPMS_OFF; | |
3838 | to_intel_encoder(connector->encoder)->connectors_active = false; | |
cdd59983 CW |
3839 | } |
3840 | } | |
3841 | ||
a261b246 | 3842 | void intel_modeset_disable(struct drm_device *dev) |
79e53945 | 3843 | { |
a261b246 DV |
3844 | struct drm_crtc *crtc; |
3845 | ||
3846 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
3847 | if (crtc->enabled) | |
3848 | intel_crtc_disable(crtc); | |
3849 | } | |
79e53945 JB |
3850 | } |
3851 | ||
1f703855 | 3852 | void intel_encoder_noop(struct drm_encoder *encoder) |
79e53945 | 3853 | { |
7e7d76c3 JB |
3854 | } |
3855 | ||
ea5b213a | 3856 | void intel_encoder_destroy(struct drm_encoder *encoder) |
7e7d76c3 | 3857 | { |
4ef69c7a | 3858 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); |
ea5b213a | 3859 | |
ea5b213a CW |
3860 | drm_encoder_cleanup(encoder); |
3861 | kfree(intel_encoder); | |
7e7d76c3 JB |
3862 | } |
3863 | ||
5ab432ef DV |
3864 | /* Simple dpms helper for encodres with just one connector, no cloning and only |
3865 | * one kind of off state. It clamps all !ON modes to fully OFF and changes the | |
3866 | * state of the entire output pipe. */ | |
3867 | void intel_encoder_dpms(struct intel_encoder *encoder, int mode) | |
7e7d76c3 | 3868 | { |
5ab432ef DV |
3869 | if (mode == DRM_MODE_DPMS_ON) { |
3870 | encoder->connectors_active = true; | |
3871 | ||
b2cabb0e | 3872 | intel_crtc_update_dpms(encoder->base.crtc); |
5ab432ef DV |
3873 | } else { |
3874 | encoder->connectors_active = false; | |
3875 | ||
b2cabb0e | 3876 | intel_crtc_update_dpms(encoder->base.crtc); |
5ab432ef | 3877 | } |
79e53945 JB |
3878 | } |
3879 | ||
0a91ca29 DV |
3880 | /* Cross check the actual hw state with our own modeset state tracking (and it's |
3881 | * internal consistency). */ | |
b980514c | 3882 | static void intel_connector_check_state(struct intel_connector *connector) |
79e53945 | 3883 | { |
0a91ca29 DV |
3884 | if (connector->get_hw_state(connector)) { |
3885 | struct intel_encoder *encoder = connector->encoder; | |
3886 | struct drm_crtc *crtc; | |
3887 | bool encoder_enabled; | |
3888 | enum pipe pipe; | |
3889 | ||
3890 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", | |
3891 | connector->base.base.id, | |
3892 | drm_get_connector_name(&connector->base)); | |
3893 | ||
3894 | WARN(connector->base.dpms == DRM_MODE_DPMS_OFF, | |
3895 | "wrong connector dpms state\n"); | |
3896 | WARN(connector->base.encoder != &encoder->base, | |
3897 | "active connector not linked to encoder\n"); | |
3898 | WARN(!encoder->connectors_active, | |
3899 | "encoder->connectors_active not set\n"); | |
3900 | ||
3901 | encoder_enabled = encoder->get_hw_state(encoder, &pipe); | |
3902 | WARN(!encoder_enabled, "encoder not enabled\n"); | |
3903 | if (WARN_ON(!encoder->base.crtc)) | |
3904 | return; | |
3905 | ||
3906 | crtc = encoder->base.crtc; | |
3907 | ||
3908 | WARN(!crtc->enabled, "crtc not enabled\n"); | |
3909 | WARN(!to_intel_crtc(crtc)->active, "crtc not active\n"); | |
3910 | WARN(pipe != to_intel_crtc(crtc)->pipe, | |
3911 | "encoder active on the wrong pipe\n"); | |
3912 | } | |
79e53945 JB |
3913 | } |
3914 | ||
5ab432ef DV |
3915 | /* Even simpler default implementation, if there's really no special case to |
3916 | * consider. */ | |
3917 | void intel_connector_dpms(struct drm_connector *connector, int mode) | |
79e53945 | 3918 | { |
5ab432ef | 3919 | struct intel_encoder *encoder = intel_attached_encoder(connector); |
d4270e57 | 3920 | |
5ab432ef DV |
3921 | /* All the simple cases only support two dpms states. */ |
3922 | if (mode != DRM_MODE_DPMS_ON) | |
3923 | mode = DRM_MODE_DPMS_OFF; | |
d4270e57 | 3924 | |
5ab432ef DV |
3925 | if (mode == connector->dpms) |
3926 | return; | |
3927 | ||
3928 | connector->dpms = mode; | |
3929 | ||
3930 | /* Only need to change hw state when actually enabled */ | |
3931 | if (encoder->base.crtc) | |
3932 | intel_encoder_dpms(encoder, mode); | |
3933 | else | |
8af6cf88 | 3934 | WARN_ON(encoder->connectors_active != false); |
0a91ca29 | 3935 | |
b980514c | 3936 | intel_modeset_check_state(connector->dev); |
79e53945 JB |
3937 | } |
3938 | ||
f0947c37 DV |
3939 | /* Simple connector->get_hw_state implementation for encoders that support only |
3940 | * one connector and no cloning and hence the encoder state determines the state | |
3941 | * of the connector. */ | |
3942 | bool intel_connector_get_hw_state(struct intel_connector *connector) | |
ea5b213a | 3943 | { |
24929352 | 3944 | enum pipe pipe = 0; |
f0947c37 | 3945 | struct intel_encoder *encoder = connector->encoder; |
ea5b213a | 3946 | |
f0947c37 | 3947 | return encoder->get_hw_state(encoder, &pipe); |
ea5b213a CW |
3948 | } |
3949 | ||
79e53945 | 3950 | static bool intel_crtc_mode_fixup(struct drm_crtc *crtc, |
35313cde | 3951 | const struct drm_display_mode *mode, |
79e53945 JB |
3952 | struct drm_display_mode *adjusted_mode) |
3953 | { | |
2c07245f | 3954 | struct drm_device *dev = crtc->dev; |
89749350 | 3955 | |
bad720ff | 3956 | if (HAS_PCH_SPLIT(dev)) { |
2c07245f | 3957 | /* FDI link clock is fixed at 2.7G */ |
2377b741 JB |
3958 | if (mode->clock * 3 > IRONLAKE_FDI_FREQ * 4) |
3959 | return false; | |
2c07245f | 3960 | } |
89749350 | 3961 | |
f9bef081 DV |
3962 | /* All interlaced capable intel hw wants timings in frames. Note though |
3963 | * that intel_lvds_mode_fixup does some funny tricks with the crtc | |
3964 | * timings, so we need to be careful not to clobber these.*/ | |
3965 | if (!(adjusted_mode->private_flags & INTEL_MODE_CRTC_TIMINGS_SET)) | |
3966 | drm_mode_set_crtcinfo(adjusted_mode, 0); | |
89749350 | 3967 | |
44f46b42 CW |
3968 | /* WaPruneModeWithIncorrectHsyncOffset: Cantiga+ cannot handle modes |
3969 | * with a hsync front porch of 0. | |
3970 | */ | |
3971 | if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) && | |
3972 | adjusted_mode->hsync_start == adjusted_mode->hdisplay) | |
3973 | return false; | |
3974 | ||
79e53945 JB |
3975 | return true; |
3976 | } | |
3977 | ||
25eb05fc JB |
3978 | static int valleyview_get_display_clock_speed(struct drm_device *dev) |
3979 | { | |
3980 | return 400000; /* FIXME */ | |
3981 | } | |
3982 | ||
e70236a8 JB |
3983 | static int i945_get_display_clock_speed(struct drm_device *dev) |
3984 | { | |
3985 | return 400000; | |
3986 | } | |
79e53945 | 3987 | |
e70236a8 | 3988 | static int i915_get_display_clock_speed(struct drm_device *dev) |
79e53945 | 3989 | { |
e70236a8 JB |
3990 | return 333000; |
3991 | } | |
79e53945 | 3992 | |
e70236a8 JB |
3993 | static int i9xx_misc_get_display_clock_speed(struct drm_device *dev) |
3994 | { | |
3995 | return 200000; | |
3996 | } | |
79e53945 | 3997 | |
e70236a8 JB |
3998 | static int i915gm_get_display_clock_speed(struct drm_device *dev) |
3999 | { | |
4000 | u16 gcfgc = 0; | |
79e53945 | 4001 | |
e70236a8 JB |
4002 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); |
4003 | ||
4004 | if (gcfgc & GC_LOW_FREQUENCY_ENABLE) | |
4005 | return 133000; | |
4006 | else { | |
4007 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
4008 | case GC_DISPLAY_CLOCK_333_MHZ: | |
4009 | return 333000; | |
4010 | default: | |
4011 | case GC_DISPLAY_CLOCK_190_200_MHZ: | |
4012 | return 190000; | |
79e53945 | 4013 | } |
e70236a8 JB |
4014 | } |
4015 | } | |
4016 | ||
4017 | static int i865_get_display_clock_speed(struct drm_device *dev) | |
4018 | { | |
4019 | return 266000; | |
4020 | } | |
4021 | ||
4022 | static int i855_get_display_clock_speed(struct drm_device *dev) | |
4023 | { | |
4024 | u16 hpllcc = 0; | |
4025 | /* Assume that the hardware is in the high speed state. This | |
4026 | * should be the default. | |
4027 | */ | |
4028 | switch (hpllcc & GC_CLOCK_CONTROL_MASK) { | |
4029 | case GC_CLOCK_133_200: | |
4030 | case GC_CLOCK_100_200: | |
4031 | return 200000; | |
4032 | case GC_CLOCK_166_250: | |
4033 | return 250000; | |
4034 | case GC_CLOCK_100_133: | |
79e53945 | 4035 | return 133000; |
e70236a8 | 4036 | } |
79e53945 | 4037 | |
e70236a8 JB |
4038 | /* Shouldn't happen */ |
4039 | return 0; | |
4040 | } | |
79e53945 | 4041 | |
e70236a8 JB |
4042 | static int i830_get_display_clock_speed(struct drm_device *dev) |
4043 | { | |
4044 | return 133000; | |
79e53945 JB |
4045 | } |
4046 | ||
2c07245f ZW |
4047 | struct fdi_m_n { |
4048 | u32 tu; | |
4049 | u32 gmch_m; | |
4050 | u32 gmch_n; | |
4051 | u32 link_m; | |
4052 | u32 link_n; | |
4053 | }; | |
4054 | ||
4055 | static void | |
4056 | fdi_reduce_ratio(u32 *num, u32 *den) | |
4057 | { | |
4058 | while (*num > 0xffffff || *den > 0xffffff) { | |
4059 | *num >>= 1; | |
4060 | *den >>= 1; | |
4061 | } | |
4062 | } | |
4063 | ||
2c07245f | 4064 | static void |
f2b115e6 AJ |
4065 | ironlake_compute_m_n(int bits_per_pixel, int nlanes, int pixel_clock, |
4066 | int link_clock, struct fdi_m_n *m_n) | |
2c07245f | 4067 | { |
2c07245f ZW |
4068 | m_n->tu = 64; /* default size */ |
4069 | ||
22ed1113 CW |
4070 | /* BUG_ON(pixel_clock > INT_MAX / 36); */ |
4071 | m_n->gmch_m = bits_per_pixel * pixel_clock; | |
4072 | m_n->gmch_n = link_clock * nlanes * 8; | |
2c07245f ZW |
4073 | fdi_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n); |
4074 | ||
22ed1113 CW |
4075 | m_n->link_m = pixel_clock; |
4076 | m_n->link_n = link_clock; | |
2c07245f ZW |
4077 | fdi_reduce_ratio(&m_n->link_m, &m_n->link_n); |
4078 | } | |
4079 | ||
a7615030 CW |
4080 | static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) |
4081 | { | |
72bbe58c KP |
4082 | if (i915_panel_use_ssc >= 0) |
4083 | return i915_panel_use_ssc != 0; | |
4084 | return dev_priv->lvds_use_ssc | |
435793df | 4085 | && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE); |
a7615030 CW |
4086 | } |
4087 | ||
5a354204 JB |
4088 | /** |
4089 | * intel_choose_pipe_bpp_dither - figure out what color depth the pipe should send | |
4090 | * @crtc: CRTC structure | |
3b5c78a3 | 4091 | * @mode: requested mode |
5a354204 JB |
4092 | * |
4093 | * A pipe may be connected to one or more outputs. Based on the depth of the | |
4094 | * attached framebuffer, choose a good color depth to use on the pipe. | |
4095 | * | |
4096 | * If possible, match the pipe depth to the fb depth. In some cases, this | |
4097 | * isn't ideal, because the connected output supports a lesser or restricted | |
4098 | * set of depths. Resolve that here: | |
4099 | * LVDS typically supports only 6bpc, so clamp down in that case | |
4100 | * HDMI supports only 8bpc or 12bpc, so clamp to 8bpc with dither for 10bpc | |
4101 | * Displays may support a restricted set as well, check EDID and clamp as | |
4102 | * appropriate. | |
3b5c78a3 | 4103 | * DP may want to dither down to 6bpc to fit larger modes |
5a354204 JB |
4104 | * |
4105 | * RETURNS: | |
4106 | * Dithering requirement (i.e. false if display bpc and pipe bpc match, | |
4107 | * true if they don't match). | |
4108 | */ | |
4109 | static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc, | |
94352cf9 | 4110 | struct drm_framebuffer *fb, |
3b5c78a3 AJ |
4111 | unsigned int *pipe_bpp, |
4112 | struct drm_display_mode *mode) | |
5a354204 JB |
4113 | { |
4114 | struct drm_device *dev = crtc->dev; | |
4115 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5a354204 | 4116 | struct drm_connector *connector; |
6c2b7c12 | 4117 | struct intel_encoder *intel_encoder; |
5a354204 JB |
4118 | unsigned int display_bpc = UINT_MAX, bpc; |
4119 | ||
4120 | /* Walk the encoders & connectors on this crtc, get min bpc */ | |
6c2b7c12 | 4121 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
5a354204 JB |
4122 | |
4123 | if (intel_encoder->type == INTEL_OUTPUT_LVDS) { | |
4124 | unsigned int lvds_bpc; | |
4125 | ||
4126 | if ((I915_READ(PCH_LVDS) & LVDS_A3_POWER_MASK) == | |
4127 | LVDS_A3_POWER_UP) | |
4128 | lvds_bpc = 8; | |
4129 | else | |
4130 | lvds_bpc = 6; | |
4131 | ||
4132 | if (lvds_bpc < display_bpc) { | |
82820490 | 4133 | DRM_DEBUG_KMS("clamping display bpc (was %d) to LVDS (%d)\n", display_bpc, lvds_bpc); |
5a354204 JB |
4134 | display_bpc = lvds_bpc; |
4135 | } | |
4136 | continue; | |
4137 | } | |
4138 | ||
5a354204 JB |
4139 | /* Not one of the known troublemakers, check the EDID */ |
4140 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
4141 | head) { | |
6c2b7c12 | 4142 | if (connector->encoder != &intel_encoder->base) |
5a354204 JB |
4143 | continue; |
4144 | ||
62ac41a6 JB |
4145 | /* Don't use an invalid EDID bpc value */ |
4146 | if (connector->display_info.bpc && | |
4147 | connector->display_info.bpc < display_bpc) { | |
82820490 | 4148 | DRM_DEBUG_KMS("clamping display bpc (was %d) to EDID reported max of %d\n", display_bpc, connector->display_info.bpc); |
5a354204 JB |
4149 | display_bpc = connector->display_info.bpc; |
4150 | } | |
4151 | } | |
4152 | ||
4153 | /* | |
4154 | * HDMI is either 12 or 8, so if the display lets 10bpc sneak | |
4155 | * through, clamp it down. (Note: >12bpc will be caught below.) | |
4156 | */ | |
4157 | if (intel_encoder->type == INTEL_OUTPUT_HDMI) { | |
4158 | if (display_bpc > 8 && display_bpc < 12) { | |
82820490 | 4159 | DRM_DEBUG_KMS("forcing bpc to 12 for HDMI\n"); |
5a354204 JB |
4160 | display_bpc = 12; |
4161 | } else { | |
82820490 | 4162 | DRM_DEBUG_KMS("forcing bpc to 8 for HDMI\n"); |
5a354204 JB |
4163 | display_bpc = 8; |
4164 | } | |
4165 | } | |
4166 | } | |
4167 | ||
3b5c78a3 AJ |
4168 | if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) { |
4169 | DRM_DEBUG_KMS("Dithering DP to 6bpc\n"); | |
4170 | display_bpc = 6; | |
4171 | } | |
4172 | ||
5a354204 JB |
4173 | /* |
4174 | * We could just drive the pipe at the highest bpc all the time and | |
4175 | * enable dithering as needed, but that costs bandwidth. So choose | |
4176 | * the minimum value that expresses the full color range of the fb but | |
4177 | * also stays within the max display bpc discovered above. | |
4178 | */ | |
4179 | ||
94352cf9 | 4180 | switch (fb->depth) { |
5a354204 JB |
4181 | case 8: |
4182 | bpc = 8; /* since we go through a colormap */ | |
4183 | break; | |
4184 | case 15: | |
4185 | case 16: | |
4186 | bpc = 6; /* min is 18bpp */ | |
4187 | break; | |
4188 | case 24: | |
578393cd | 4189 | bpc = 8; |
5a354204 JB |
4190 | break; |
4191 | case 30: | |
578393cd | 4192 | bpc = 10; |
5a354204 JB |
4193 | break; |
4194 | case 48: | |
578393cd | 4195 | bpc = 12; |
5a354204 JB |
4196 | break; |
4197 | default: | |
4198 | DRM_DEBUG("unsupported depth, assuming 24 bits\n"); | |
4199 | bpc = min((unsigned int)8, display_bpc); | |
4200 | break; | |
4201 | } | |
4202 | ||
578393cd KP |
4203 | display_bpc = min(display_bpc, bpc); |
4204 | ||
82820490 AJ |
4205 | DRM_DEBUG_KMS("setting pipe bpc to %d (max display bpc %d)\n", |
4206 | bpc, display_bpc); | |
5a354204 | 4207 | |
578393cd | 4208 | *pipe_bpp = display_bpc * 3; |
5a354204 JB |
4209 | |
4210 | return display_bpc != bpc; | |
4211 | } | |
4212 | ||
a0c4da24 JB |
4213 | static int vlv_get_refclk(struct drm_crtc *crtc) |
4214 | { | |
4215 | struct drm_device *dev = crtc->dev; | |
4216 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4217 | int refclk = 27000; /* for DP & HDMI */ | |
4218 | ||
4219 | return 100000; /* only one validated so far */ | |
4220 | ||
4221 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { | |
4222 | refclk = 96000; | |
4223 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
4224 | if (intel_panel_use_ssc(dev_priv)) | |
4225 | refclk = 100000; | |
4226 | else | |
4227 | refclk = 96000; | |
4228 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) { | |
4229 | refclk = 100000; | |
4230 | } | |
4231 | ||
4232 | return refclk; | |
4233 | } | |
4234 | ||
c65d77d8 JB |
4235 | static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors) |
4236 | { | |
4237 | struct drm_device *dev = crtc->dev; | |
4238 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4239 | int refclk; | |
4240 | ||
a0c4da24 JB |
4241 | if (IS_VALLEYVIEW(dev)) { |
4242 | refclk = vlv_get_refclk(crtc); | |
4243 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
c65d77d8 JB |
4244 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) { |
4245 | refclk = dev_priv->lvds_ssc_freq * 1000; | |
4246 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", | |
4247 | refclk / 1000); | |
4248 | } else if (!IS_GEN2(dev)) { | |
4249 | refclk = 96000; | |
4250 | } else { | |
4251 | refclk = 48000; | |
4252 | } | |
4253 | ||
4254 | return refclk; | |
4255 | } | |
4256 | ||
4257 | static void i9xx_adjust_sdvo_tv_clock(struct drm_display_mode *adjusted_mode, | |
4258 | intel_clock_t *clock) | |
4259 | { | |
4260 | /* SDVO TV has fixed PLL values depend on its clock range, | |
4261 | this mirrors vbios setting. */ | |
4262 | if (adjusted_mode->clock >= 100000 | |
4263 | && adjusted_mode->clock < 140500) { | |
4264 | clock->p1 = 2; | |
4265 | clock->p2 = 10; | |
4266 | clock->n = 3; | |
4267 | clock->m1 = 16; | |
4268 | clock->m2 = 8; | |
4269 | } else if (adjusted_mode->clock >= 140500 | |
4270 | && adjusted_mode->clock <= 200000) { | |
4271 | clock->p1 = 1; | |
4272 | clock->p2 = 10; | |
4273 | clock->n = 6; | |
4274 | clock->m1 = 12; | |
4275 | clock->m2 = 8; | |
4276 | } | |
4277 | } | |
4278 | ||
a7516a05 JB |
4279 | static void i9xx_update_pll_dividers(struct drm_crtc *crtc, |
4280 | intel_clock_t *clock, | |
4281 | intel_clock_t *reduced_clock) | |
4282 | { | |
4283 | struct drm_device *dev = crtc->dev; | |
4284 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4285 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4286 | int pipe = intel_crtc->pipe; | |
4287 | u32 fp, fp2 = 0; | |
4288 | ||
4289 | if (IS_PINEVIEW(dev)) { | |
4290 | fp = (1 << clock->n) << 16 | clock->m1 << 8 | clock->m2; | |
4291 | if (reduced_clock) | |
4292 | fp2 = (1 << reduced_clock->n) << 16 | | |
4293 | reduced_clock->m1 << 8 | reduced_clock->m2; | |
4294 | } else { | |
4295 | fp = clock->n << 16 | clock->m1 << 8 | clock->m2; | |
4296 | if (reduced_clock) | |
4297 | fp2 = reduced_clock->n << 16 | reduced_clock->m1 << 8 | | |
4298 | reduced_clock->m2; | |
4299 | } | |
4300 | ||
4301 | I915_WRITE(FP0(pipe), fp); | |
4302 | ||
4303 | intel_crtc->lowfreq_avail = false; | |
4304 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
4305 | reduced_clock && i915_powersave) { | |
4306 | I915_WRITE(FP1(pipe), fp2); | |
4307 | intel_crtc->lowfreq_avail = true; | |
4308 | } else { | |
4309 | I915_WRITE(FP1(pipe), fp); | |
4310 | } | |
4311 | } | |
4312 | ||
93e537a1 DV |
4313 | static void intel_update_lvds(struct drm_crtc *crtc, intel_clock_t *clock, |
4314 | struct drm_display_mode *adjusted_mode) | |
4315 | { | |
4316 | struct drm_device *dev = crtc->dev; | |
4317 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4318 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4319 | int pipe = intel_crtc->pipe; | |
284d5df5 | 4320 | u32 temp; |
93e537a1 DV |
4321 | |
4322 | temp = I915_READ(LVDS); | |
4323 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; | |
4324 | if (pipe == 1) { | |
4325 | temp |= LVDS_PIPEB_SELECT; | |
4326 | } else { | |
4327 | temp &= ~LVDS_PIPEB_SELECT; | |
4328 | } | |
4329 | /* set the corresponsding LVDS_BORDER bit */ | |
4330 | temp |= dev_priv->lvds_border_bits; | |
4331 | /* Set the B0-B3 data pairs corresponding to whether we're going to | |
4332 | * set the DPLLs for dual-channel mode or not. | |
4333 | */ | |
4334 | if (clock->p2 == 7) | |
4335 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; | |
4336 | else | |
4337 | temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); | |
4338 | ||
4339 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) | |
4340 | * appropriately here, but we need to look more thoroughly into how | |
4341 | * panels behave in the two modes. | |
4342 | */ | |
4343 | /* set the dithering flag on LVDS as needed */ | |
4344 | if (INTEL_INFO(dev)->gen >= 4) { | |
4345 | if (dev_priv->lvds_dither) | |
4346 | temp |= LVDS_ENABLE_DITHER; | |
4347 | else | |
4348 | temp &= ~LVDS_ENABLE_DITHER; | |
4349 | } | |
284d5df5 | 4350 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); |
93e537a1 | 4351 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) |
284d5df5 | 4352 | temp |= LVDS_HSYNC_POLARITY; |
93e537a1 | 4353 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) |
284d5df5 | 4354 | temp |= LVDS_VSYNC_POLARITY; |
93e537a1 DV |
4355 | I915_WRITE(LVDS, temp); |
4356 | } | |
4357 | ||
a0c4da24 JB |
4358 | static void vlv_update_pll(struct drm_crtc *crtc, |
4359 | struct drm_display_mode *mode, | |
4360 | struct drm_display_mode *adjusted_mode, | |
4361 | intel_clock_t *clock, intel_clock_t *reduced_clock, | |
2a8f64ca | 4362 | int num_connectors) |
a0c4da24 JB |
4363 | { |
4364 | struct drm_device *dev = crtc->dev; | |
4365 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4366 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4367 | int pipe = intel_crtc->pipe; | |
4368 | u32 dpll, mdiv, pdiv; | |
4369 | u32 bestn, bestm1, bestm2, bestp1, bestp2; | |
2a8f64ca VP |
4370 | bool is_sdvo; |
4371 | u32 temp; | |
a0c4da24 | 4372 | |
2a8f64ca VP |
4373 | is_sdvo = intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO) || |
4374 | intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI); | |
a0c4da24 | 4375 | |
2a8f64ca VP |
4376 | dpll = DPLL_VGA_MODE_DIS; |
4377 | dpll |= DPLL_EXT_BUFFER_ENABLE_VLV; | |
4378 | dpll |= DPLL_REFA_CLK_ENABLE_VLV; | |
4379 | dpll |= DPLL_INTEGRATED_CLOCK_VLV; | |
4380 | ||
4381 | I915_WRITE(DPLL(pipe), dpll); | |
4382 | POSTING_READ(DPLL(pipe)); | |
a0c4da24 JB |
4383 | |
4384 | bestn = clock->n; | |
4385 | bestm1 = clock->m1; | |
4386 | bestm2 = clock->m2; | |
4387 | bestp1 = clock->p1; | |
4388 | bestp2 = clock->p2; | |
4389 | ||
2a8f64ca VP |
4390 | /* |
4391 | * In Valleyview PLL and program lane counter registers are exposed | |
4392 | * through DPIO interface | |
4393 | */ | |
a0c4da24 JB |
4394 | mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK)); |
4395 | mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT)); | |
4396 | mdiv |= ((bestn << DPIO_N_SHIFT)); | |
4397 | mdiv |= (1 << DPIO_POST_DIV_SHIFT); | |
4398 | mdiv |= (1 << DPIO_K_SHIFT); | |
4399 | mdiv |= DPIO_ENABLE_CALIBRATION; | |
4400 | intel_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv); | |
4401 | ||
4402 | intel_dpio_write(dev_priv, DPIO_CORE_CLK(pipe), 0x01000000); | |
4403 | ||
2a8f64ca | 4404 | pdiv = (1 << DPIO_REFSEL_OVERRIDE) | (5 << DPIO_PLL_MODESEL_SHIFT) | |
a0c4da24 | 4405 | (3 << DPIO_BIAS_CURRENT_CTL_SHIFT) | (1<<20) | |
2a8f64ca VP |
4406 | (7 << DPIO_PLL_REFCLK_SEL_SHIFT) | (8 << DPIO_DRIVER_CTL_SHIFT) | |
4407 | (5 << DPIO_CLK_BIAS_CTL_SHIFT); | |
a0c4da24 JB |
4408 | intel_dpio_write(dev_priv, DPIO_REFSFR(pipe), pdiv); |
4409 | ||
2a8f64ca | 4410 | intel_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe), 0x005f003b); |
a0c4da24 JB |
4411 | |
4412 | dpll |= DPLL_VCO_ENABLE; | |
4413 | I915_WRITE(DPLL(pipe), dpll); | |
4414 | POSTING_READ(DPLL(pipe)); | |
4415 | if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1)) | |
4416 | DRM_ERROR("DPLL %d failed to lock\n", pipe); | |
4417 | ||
2a8f64ca VP |
4418 | intel_dpio_write(dev_priv, DPIO_FASTCLK_DISABLE, 0x620); |
4419 | ||
4420 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) | |
4421 | intel_dp_set_m_n(crtc, mode, adjusted_mode); | |
4422 | ||
4423 | I915_WRITE(DPLL(pipe), dpll); | |
4424 | ||
4425 | /* Wait for the clocks to stabilize. */ | |
4426 | POSTING_READ(DPLL(pipe)); | |
4427 | udelay(150); | |
a0c4da24 | 4428 | |
2a8f64ca VP |
4429 | temp = 0; |
4430 | if (is_sdvo) { | |
4431 | temp = intel_mode_get_pixel_multiplier(adjusted_mode); | |
a0c4da24 JB |
4432 | if (temp > 1) |
4433 | temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
4434 | else | |
4435 | temp = 0; | |
a0c4da24 | 4436 | } |
2a8f64ca VP |
4437 | I915_WRITE(DPLL_MD(pipe), temp); |
4438 | POSTING_READ(DPLL_MD(pipe)); | |
a0c4da24 | 4439 | |
2a8f64ca VP |
4440 | /* Now program lane control registers */ |
4441 | if(intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) | |
4442 | || intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) | |
4443 | { | |
4444 | temp = 0x1000C4; | |
4445 | if(pipe == 1) | |
4446 | temp |= (1 << 21); | |
4447 | intel_dpio_write(dev_priv, DPIO_DATA_CHANNEL1, temp); | |
4448 | } | |
4449 | if(intel_pipe_has_type(crtc,INTEL_OUTPUT_EDP)) | |
4450 | { | |
4451 | temp = 0x1000C4; | |
4452 | if(pipe == 1) | |
4453 | temp |= (1 << 21); | |
4454 | intel_dpio_write(dev_priv, DPIO_DATA_CHANNEL2, temp); | |
4455 | } | |
a0c4da24 JB |
4456 | } |
4457 | ||
eb1cbe48 DV |
4458 | static void i9xx_update_pll(struct drm_crtc *crtc, |
4459 | struct drm_display_mode *mode, | |
4460 | struct drm_display_mode *adjusted_mode, | |
4461 | intel_clock_t *clock, intel_clock_t *reduced_clock, | |
4462 | int num_connectors) | |
4463 | { | |
4464 | struct drm_device *dev = crtc->dev; | |
4465 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4466 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
dafd226c | 4467 | struct intel_encoder *encoder; |
eb1cbe48 DV |
4468 | int pipe = intel_crtc->pipe; |
4469 | u32 dpll; | |
4470 | bool is_sdvo; | |
4471 | ||
2a8f64ca VP |
4472 | i9xx_update_pll_dividers(crtc, clock, reduced_clock); |
4473 | ||
eb1cbe48 DV |
4474 | is_sdvo = intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO) || |
4475 | intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI); | |
4476 | ||
4477 | dpll = DPLL_VGA_MODE_DIS; | |
4478 | ||
4479 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
4480 | dpll |= DPLLB_MODE_LVDS; | |
4481 | else | |
4482 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
4483 | if (is_sdvo) { | |
4484 | int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); | |
4485 | if (pixel_multiplier > 1) { | |
4486 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) | |
4487 | dpll |= (pixel_multiplier - 1) << SDVO_MULTIPLIER_SHIFT_HIRES; | |
4488 | } | |
4489 | dpll |= DPLL_DVO_HIGH_SPEED; | |
4490 | } | |
4491 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) | |
4492 | dpll |= DPLL_DVO_HIGH_SPEED; | |
4493 | ||
4494 | /* compute bitmask from p1 value */ | |
4495 | if (IS_PINEVIEW(dev)) | |
4496 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW; | |
4497 | else { | |
4498 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4499 | if (IS_G4X(dev) && reduced_clock) | |
4500 | dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
4501 | } | |
4502 | switch (clock->p2) { | |
4503 | case 5: | |
4504 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
4505 | break; | |
4506 | case 7: | |
4507 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
4508 | break; | |
4509 | case 10: | |
4510 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
4511 | break; | |
4512 | case 14: | |
4513 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
4514 | break; | |
4515 | } | |
4516 | if (INTEL_INFO(dev)->gen >= 4) | |
4517 | dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT); | |
4518 | ||
4519 | if (is_sdvo && intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) | |
4520 | dpll |= PLL_REF_INPUT_TVCLKINBC; | |
4521 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) | |
4522 | /* XXX: just matching BIOS for now */ | |
4523 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ | |
4524 | dpll |= 3; | |
4525 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
4526 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) | |
4527 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
4528 | else | |
4529 | dpll |= PLL_REF_INPUT_DREFCLK; | |
4530 | ||
4531 | dpll |= DPLL_VCO_ENABLE; | |
4532 | I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); | |
4533 | POSTING_READ(DPLL(pipe)); | |
4534 | udelay(150); | |
4535 | ||
dafd226c DV |
4536 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4537 | if (encoder->pre_pll_enable) | |
4538 | encoder->pre_pll_enable(encoder); | |
4539 | ||
eb1cbe48 DV |
4540 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. |
4541 | * This is an exception to the general rule that mode_set doesn't turn | |
4542 | * things on. | |
4543 | */ | |
4544 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
4545 | intel_update_lvds(crtc, clock, adjusted_mode); | |
4546 | ||
4547 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) | |
4548 | intel_dp_set_m_n(crtc, mode, adjusted_mode); | |
4549 | ||
4550 | I915_WRITE(DPLL(pipe), dpll); | |
4551 | ||
4552 | /* Wait for the clocks to stabilize. */ | |
4553 | POSTING_READ(DPLL(pipe)); | |
4554 | udelay(150); | |
4555 | ||
4556 | if (INTEL_INFO(dev)->gen >= 4) { | |
4557 | u32 temp = 0; | |
4558 | if (is_sdvo) { | |
4559 | temp = intel_mode_get_pixel_multiplier(adjusted_mode); | |
4560 | if (temp > 1) | |
4561 | temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
4562 | else | |
4563 | temp = 0; | |
4564 | } | |
4565 | I915_WRITE(DPLL_MD(pipe), temp); | |
4566 | } else { | |
4567 | /* The pixel multiplier can only be updated once the | |
4568 | * DPLL is enabled and the clocks are stable. | |
4569 | * | |
4570 | * So write it again. | |
4571 | */ | |
4572 | I915_WRITE(DPLL(pipe), dpll); | |
4573 | } | |
4574 | } | |
4575 | ||
4576 | static void i8xx_update_pll(struct drm_crtc *crtc, | |
4577 | struct drm_display_mode *adjusted_mode, | |
2a8f64ca | 4578 | intel_clock_t *clock, intel_clock_t *reduced_clock, |
eb1cbe48 DV |
4579 | int num_connectors) |
4580 | { | |
4581 | struct drm_device *dev = crtc->dev; | |
4582 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4583 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
dafd226c | 4584 | struct intel_encoder *encoder; |
eb1cbe48 DV |
4585 | int pipe = intel_crtc->pipe; |
4586 | u32 dpll; | |
4587 | ||
2a8f64ca VP |
4588 | i9xx_update_pll_dividers(crtc, clock, reduced_clock); |
4589 | ||
eb1cbe48 DV |
4590 | dpll = DPLL_VGA_MODE_DIS; |
4591 | ||
4592 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
4593 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4594 | } else { | |
4595 | if (clock->p1 == 2) | |
4596 | dpll |= PLL_P1_DIVIDE_BY_TWO; | |
4597 | else | |
4598 | dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4599 | if (clock->p2 == 4) | |
4600 | dpll |= PLL_P2_DIVIDE_BY_4; | |
4601 | } | |
4602 | ||
4603 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) | |
4604 | /* XXX: just matching BIOS for now */ | |
4605 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ | |
4606 | dpll |= 3; | |
4607 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
4608 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) | |
4609 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
4610 | else | |
4611 | dpll |= PLL_REF_INPUT_DREFCLK; | |
4612 | ||
4613 | dpll |= DPLL_VCO_ENABLE; | |
4614 | I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); | |
4615 | POSTING_READ(DPLL(pipe)); | |
4616 | udelay(150); | |
4617 | ||
dafd226c DV |
4618 | for_each_encoder_on_crtc(dev, crtc, encoder) |
4619 | if (encoder->pre_pll_enable) | |
4620 | encoder->pre_pll_enable(encoder); | |
4621 | ||
eb1cbe48 DV |
4622 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. |
4623 | * This is an exception to the general rule that mode_set doesn't turn | |
4624 | * things on. | |
4625 | */ | |
4626 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
4627 | intel_update_lvds(crtc, clock, adjusted_mode); | |
4628 | ||
5b5896e4 DV |
4629 | I915_WRITE(DPLL(pipe), dpll); |
4630 | ||
4631 | /* Wait for the clocks to stabilize. */ | |
4632 | POSTING_READ(DPLL(pipe)); | |
4633 | udelay(150); | |
4634 | ||
eb1cbe48 DV |
4635 | /* The pixel multiplier can only be updated once the |
4636 | * DPLL is enabled and the clocks are stable. | |
4637 | * | |
4638 | * So write it again. | |
4639 | */ | |
4640 | I915_WRITE(DPLL(pipe), dpll); | |
4641 | } | |
4642 | ||
b0e77b9c PZ |
4643 | static void intel_set_pipe_timings(struct intel_crtc *intel_crtc, |
4644 | struct drm_display_mode *mode, | |
4645 | struct drm_display_mode *adjusted_mode) | |
4646 | { | |
4647 | struct drm_device *dev = intel_crtc->base.dev; | |
4648 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4649 | enum pipe pipe = intel_crtc->pipe; | |
fe2b8f9d | 4650 | enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder; |
b0e77b9c PZ |
4651 | uint32_t vsyncshift; |
4652 | ||
4653 | if (!IS_GEN2(dev) && adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { | |
4654 | /* the chip adds 2 halflines automatically */ | |
4655 | adjusted_mode->crtc_vtotal -= 1; | |
4656 | adjusted_mode->crtc_vblank_end -= 1; | |
4657 | vsyncshift = adjusted_mode->crtc_hsync_start | |
4658 | - adjusted_mode->crtc_htotal / 2; | |
4659 | } else { | |
4660 | vsyncshift = 0; | |
4661 | } | |
4662 | ||
4663 | if (INTEL_INFO(dev)->gen > 3) | |
fe2b8f9d | 4664 | I915_WRITE(VSYNCSHIFT(cpu_transcoder), vsyncshift); |
b0e77b9c | 4665 | |
fe2b8f9d | 4666 | I915_WRITE(HTOTAL(cpu_transcoder), |
b0e77b9c PZ |
4667 | (adjusted_mode->crtc_hdisplay - 1) | |
4668 | ((adjusted_mode->crtc_htotal - 1) << 16)); | |
fe2b8f9d | 4669 | I915_WRITE(HBLANK(cpu_transcoder), |
b0e77b9c PZ |
4670 | (adjusted_mode->crtc_hblank_start - 1) | |
4671 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); | |
fe2b8f9d | 4672 | I915_WRITE(HSYNC(cpu_transcoder), |
b0e77b9c PZ |
4673 | (adjusted_mode->crtc_hsync_start - 1) | |
4674 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); | |
4675 | ||
fe2b8f9d | 4676 | I915_WRITE(VTOTAL(cpu_transcoder), |
b0e77b9c PZ |
4677 | (adjusted_mode->crtc_vdisplay - 1) | |
4678 | ((adjusted_mode->crtc_vtotal - 1) << 16)); | |
fe2b8f9d | 4679 | I915_WRITE(VBLANK(cpu_transcoder), |
b0e77b9c PZ |
4680 | (adjusted_mode->crtc_vblank_start - 1) | |
4681 | ((adjusted_mode->crtc_vblank_end - 1) << 16)); | |
fe2b8f9d | 4682 | I915_WRITE(VSYNC(cpu_transcoder), |
b0e77b9c PZ |
4683 | (adjusted_mode->crtc_vsync_start - 1) | |
4684 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); | |
4685 | ||
b5e508d4 PZ |
4686 | /* Workaround: when the EDP input selection is B, the VTOTAL_B must be |
4687 | * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is | |
4688 | * documented on the DDI_FUNC_CTL register description, EDP Input Select | |
4689 | * bits. */ | |
4690 | if (IS_HASWELL(dev) && cpu_transcoder == TRANSCODER_EDP && | |
4691 | (pipe == PIPE_B || pipe == PIPE_C)) | |
4692 | I915_WRITE(VTOTAL(pipe), I915_READ(VTOTAL(cpu_transcoder))); | |
4693 | ||
b0e77b9c PZ |
4694 | /* pipesrc controls the size that is scaled from, which should |
4695 | * always be the user's requested size. | |
4696 | */ | |
4697 | I915_WRITE(PIPESRC(pipe), | |
4698 | ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); | |
4699 | } | |
4700 | ||
f564048e EA |
4701 | static int i9xx_crtc_mode_set(struct drm_crtc *crtc, |
4702 | struct drm_display_mode *mode, | |
4703 | struct drm_display_mode *adjusted_mode, | |
4704 | int x, int y, | |
94352cf9 | 4705 | struct drm_framebuffer *fb) |
79e53945 JB |
4706 | { |
4707 | struct drm_device *dev = crtc->dev; | |
4708 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4709 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4710 | int pipe = intel_crtc->pipe; | |
80824003 | 4711 | int plane = intel_crtc->plane; |
c751ce4f | 4712 | int refclk, num_connectors = 0; |
652c393a | 4713 | intel_clock_t clock, reduced_clock; |
b0e77b9c | 4714 | u32 dspcntr, pipeconf; |
eb1cbe48 DV |
4715 | bool ok, has_reduced_clock = false, is_sdvo = false; |
4716 | bool is_lvds = false, is_tv = false, is_dp = false; | |
5eddb70b | 4717 | struct intel_encoder *encoder; |
d4906093 | 4718 | const intel_limit_t *limit; |
5c3b82e2 | 4719 | int ret; |
79e53945 | 4720 | |
6c2b7c12 | 4721 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
5eddb70b | 4722 | switch (encoder->type) { |
79e53945 JB |
4723 | case INTEL_OUTPUT_LVDS: |
4724 | is_lvds = true; | |
4725 | break; | |
4726 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 4727 | case INTEL_OUTPUT_HDMI: |
79e53945 | 4728 | is_sdvo = true; |
5eddb70b | 4729 | if (encoder->needs_tv_clock) |
e2f0ba97 | 4730 | is_tv = true; |
79e53945 | 4731 | break; |
79e53945 JB |
4732 | case INTEL_OUTPUT_TVOUT: |
4733 | is_tv = true; | |
4734 | break; | |
a4fc5ed6 KP |
4735 | case INTEL_OUTPUT_DISPLAYPORT: |
4736 | is_dp = true; | |
4737 | break; | |
79e53945 | 4738 | } |
43565a06 | 4739 | |
c751ce4f | 4740 | num_connectors++; |
79e53945 JB |
4741 | } |
4742 | ||
c65d77d8 | 4743 | refclk = i9xx_get_refclk(crtc, num_connectors); |
79e53945 | 4744 | |
d4906093 ML |
4745 | /* |
4746 | * Returns a set of divisors for the desired target clock with the given | |
4747 | * refclk, or FALSE. The returned values represent the clock equation: | |
4748 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
4749 | */ | |
1b894b59 | 4750 | limit = intel_limit(crtc, refclk); |
cec2f356 SP |
4751 | ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL, |
4752 | &clock); | |
79e53945 JB |
4753 | if (!ok) { |
4754 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
5c3b82e2 | 4755 | return -EINVAL; |
79e53945 JB |
4756 | } |
4757 | ||
cda4b7d3 | 4758 | /* Ensure that the cursor is valid for the new mode before changing... */ |
6b383a7f | 4759 | intel_crtc_update_cursor(crtc, true); |
cda4b7d3 | 4760 | |
ddc9003c | 4761 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
cec2f356 SP |
4762 | /* |
4763 | * Ensure we match the reduced clock's P to the target clock. | |
4764 | * If the clocks don't match, we can't switch the display clock | |
4765 | * by using the FP0/FP1. In such case we will disable the LVDS | |
4766 | * downclock feature. | |
4767 | */ | |
ddc9003c | 4768 | has_reduced_clock = limit->find_pll(limit, crtc, |
5eddb70b CW |
4769 | dev_priv->lvds_downclock, |
4770 | refclk, | |
cec2f356 | 4771 | &clock, |
5eddb70b | 4772 | &reduced_clock); |
7026d4ac ZW |
4773 | } |
4774 | ||
c65d77d8 JB |
4775 | if (is_sdvo && is_tv) |
4776 | i9xx_adjust_sdvo_tv_clock(adjusted_mode, &clock); | |
7026d4ac | 4777 | |
eb1cbe48 | 4778 | if (IS_GEN2(dev)) |
2a8f64ca VP |
4779 | i8xx_update_pll(crtc, adjusted_mode, &clock, |
4780 | has_reduced_clock ? &reduced_clock : NULL, | |
4781 | num_connectors); | |
a0c4da24 | 4782 | else if (IS_VALLEYVIEW(dev)) |
2a8f64ca VP |
4783 | vlv_update_pll(crtc, mode, adjusted_mode, &clock, |
4784 | has_reduced_clock ? &reduced_clock : NULL, | |
4785 | num_connectors); | |
79e53945 | 4786 | else |
eb1cbe48 DV |
4787 | i9xx_update_pll(crtc, mode, adjusted_mode, &clock, |
4788 | has_reduced_clock ? &reduced_clock : NULL, | |
4789 | num_connectors); | |
79e53945 JB |
4790 | |
4791 | /* setup pipeconf */ | |
5eddb70b | 4792 | pipeconf = I915_READ(PIPECONF(pipe)); |
79e53945 JB |
4793 | |
4794 | /* Set up the display plane register */ | |
4795 | dspcntr = DISPPLANE_GAMMA_ENABLE; | |
4796 | ||
929c77fb EA |
4797 | if (pipe == 0) |
4798 | dspcntr &= ~DISPPLANE_SEL_PIPE_MASK; | |
4799 | else | |
4800 | dspcntr |= DISPPLANE_SEL_PIPE_B; | |
79e53945 | 4801 | |
a6c45cf0 | 4802 | if (pipe == 0 && INTEL_INFO(dev)->gen < 4) { |
79e53945 JB |
4803 | /* Enable pixel doubling when the dot clock is > 90% of the (display) |
4804 | * core speed. | |
4805 | * | |
4806 | * XXX: No double-wide on 915GM pipe B. Is that the only reason for the | |
4807 | * pipe == 0 check? | |
4808 | */ | |
e70236a8 JB |
4809 | if (mode->clock > |
4810 | dev_priv->display.get_display_clock_speed(dev) * 9 / 10) | |
5eddb70b | 4811 | pipeconf |= PIPECONF_DOUBLE_WIDE; |
79e53945 | 4812 | else |
5eddb70b | 4813 | pipeconf &= ~PIPECONF_DOUBLE_WIDE; |
79e53945 JB |
4814 | } |
4815 | ||
3b5c78a3 AJ |
4816 | /* default to 8bpc */ |
4817 | pipeconf &= ~(PIPECONF_BPP_MASK | PIPECONF_DITHER_EN); | |
4818 | if (is_dp) { | |
0c96c65b | 4819 | if (adjusted_mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) { |
3b5c78a3 AJ |
4820 | pipeconf |= PIPECONF_BPP_6 | |
4821 | PIPECONF_DITHER_EN | | |
4822 | PIPECONF_DITHER_TYPE_SP; | |
4823 | } | |
4824 | } | |
4825 | ||
19c03924 GB |
4826 | if (IS_VALLEYVIEW(dev) && intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) { |
4827 | if (adjusted_mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) { | |
4828 | pipeconf |= PIPECONF_BPP_6 | | |
4829 | PIPECONF_ENABLE | | |
4830 | I965_PIPECONF_ACTIVE; | |
4831 | } | |
4832 | } | |
4833 | ||
28c97730 | 4834 | DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B'); |
79e53945 JB |
4835 | drm_mode_debug_printmodeline(mode); |
4836 | ||
a7516a05 JB |
4837 | if (HAS_PIPE_CXSR(dev)) { |
4838 | if (intel_crtc->lowfreq_avail) { | |
28c97730 | 4839 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); |
652c393a | 4840 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; |
a7516a05 | 4841 | } else { |
28c97730 | 4842 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); |
652c393a JB |
4843 | pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK; |
4844 | } | |
4845 | } | |
4846 | ||
617cf884 | 4847 | pipeconf &= ~PIPECONF_INTERLACE_MASK; |
dbb02575 | 4848 | if (!IS_GEN2(dev) && |
b0e77b9c | 4849 | adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) |
734b4157 | 4850 | pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; |
b0e77b9c | 4851 | else |
617cf884 | 4852 | pipeconf |= PIPECONF_PROGRESSIVE; |
734b4157 | 4853 | |
b0e77b9c | 4854 | intel_set_pipe_timings(intel_crtc, mode, adjusted_mode); |
5eddb70b CW |
4855 | |
4856 | /* pipesrc and dspsize control the size that is scaled from, | |
4857 | * which should always be the user's requested size. | |
79e53945 | 4858 | */ |
929c77fb EA |
4859 | I915_WRITE(DSPSIZE(plane), |
4860 | ((mode->vdisplay - 1) << 16) | | |
4861 | (mode->hdisplay - 1)); | |
4862 | I915_WRITE(DSPPOS(plane), 0); | |
2c07245f | 4863 | |
f564048e EA |
4864 | I915_WRITE(PIPECONF(pipe), pipeconf); |
4865 | POSTING_READ(PIPECONF(pipe)); | |
929c77fb | 4866 | intel_enable_pipe(dev_priv, pipe, false); |
f564048e EA |
4867 | |
4868 | intel_wait_for_vblank(dev, pipe); | |
4869 | ||
f564048e EA |
4870 | I915_WRITE(DSPCNTR(plane), dspcntr); |
4871 | POSTING_READ(DSPCNTR(plane)); | |
4872 | ||
94352cf9 | 4873 | ret = intel_pipe_set_base(crtc, x, y, fb); |
f564048e EA |
4874 | |
4875 | intel_update_watermarks(dev); | |
4876 | ||
f564048e EA |
4877 | return ret; |
4878 | } | |
4879 | ||
9fb526db KP |
4880 | /* |
4881 | * Initialize reference clocks when the driver loads | |
4882 | */ | |
4883 | void ironlake_init_pch_refclk(struct drm_device *dev) | |
13d83a67 JB |
4884 | { |
4885 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4886 | struct drm_mode_config *mode_config = &dev->mode_config; | |
13d83a67 | 4887 | struct intel_encoder *encoder; |
13d83a67 JB |
4888 | u32 temp; |
4889 | bool has_lvds = false; | |
199e5d79 KP |
4890 | bool has_cpu_edp = false; |
4891 | bool has_pch_edp = false; | |
4892 | bool has_panel = false; | |
99eb6a01 KP |
4893 | bool has_ck505 = false; |
4894 | bool can_ssc = false; | |
13d83a67 JB |
4895 | |
4896 | /* We need to take the global config into account */ | |
199e5d79 KP |
4897 | list_for_each_entry(encoder, &mode_config->encoder_list, |
4898 | base.head) { | |
4899 | switch (encoder->type) { | |
4900 | case INTEL_OUTPUT_LVDS: | |
4901 | has_panel = true; | |
4902 | has_lvds = true; | |
4903 | break; | |
4904 | case INTEL_OUTPUT_EDP: | |
4905 | has_panel = true; | |
4906 | if (intel_encoder_is_pch_edp(&encoder->base)) | |
4907 | has_pch_edp = true; | |
4908 | else | |
4909 | has_cpu_edp = true; | |
4910 | break; | |
13d83a67 JB |
4911 | } |
4912 | } | |
4913 | ||
99eb6a01 KP |
4914 | if (HAS_PCH_IBX(dev)) { |
4915 | has_ck505 = dev_priv->display_clock_mode; | |
4916 | can_ssc = has_ck505; | |
4917 | } else { | |
4918 | has_ck505 = false; | |
4919 | can_ssc = true; | |
4920 | } | |
4921 | ||
4922 | DRM_DEBUG_KMS("has_panel %d has_lvds %d has_pch_edp %d has_cpu_edp %d has_ck505 %d\n", | |
4923 | has_panel, has_lvds, has_pch_edp, has_cpu_edp, | |
4924 | has_ck505); | |
13d83a67 JB |
4925 | |
4926 | /* Ironlake: try to setup display ref clock before DPLL | |
4927 | * enabling. This is only under driver's control after | |
4928 | * PCH B stepping, previous chipset stepping should be | |
4929 | * ignoring this setting. | |
4930 | */ | |
4931 | temp = I915_READ(PCH_DREF_CONTROL); | |
4932 | /* Always enable nonspread source */ | |
4933 | temp &= ~DREF_NONSPREAD_SOURCE_MASK; | |
13d83a67 | 4934 | |
99eb6a01 KP |
4935 | if (has_ck505) |
4936 | temp |= DREF_NONSPREAD_CK505_ENABLE; | |
4937 | else | |
4938 | temp |= DREF_NONSPREAD_SOURCE_ENABLE; | |
13d83a67 | 4939 | |
199e5d79 KP |
4940 | if (has_panel) { |
4941 | temp &= ~DREF_SSC_SOURCE_MASK; | |
4942 | temp |= DREF_SSC_SOURCE_ENABLE; | |
13d83a67 | 4943 | |
199e5d79 | 4944 | /* SSC must be turned on before enabling the CPU output */ |
99eb6a01 | 4945 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 4946 | DRM_DEBUG_KMS("Using SSC on panel\n"); |
13d83a67 | 4947 | temp |= DREF_SSC1_ENABLE; |
e77166b5 DV |
4948 | } else |
4949 | temp &= ~DREF_SSC1_ENABLE; | |
199e5d79 KP |
4950 | |
4951 | /* Get SSC going before enabling the outputs */ | |
4952 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
4953 | POSTING_READ(PCH_DREF_CONTROL); | |
4954 | udelay(200); | |
4955 | ||
13d83a67 JB |
4956 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
4957 | ||
4958 | /* Enable CPU source on CPU attached eDP */ | |
199e5d79 | 4959 | if (has_cpu_edp) { |
99eb6a01 | 4960 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 4961 | DRM_DEBUG_KMS("Using SSC on eDP\n"); |
13d83a67 | 4962 | temp |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; |
199e5d79 | 4963 | } |
13d83a67 JB |
4964 | else |
4965 | temp |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; | |
199e5d79 KP |
4966 | } else |
4967 | temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
4968 | ||
4969 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
4970 | POSTING_READ(PCH_DREF_CONTROL); | |
4971 | udelay(200); | |
4972 | } else { | |
4973 | DRM_DEBUG_KMS("Disabling SSC entirely\n"); | |
4974 | ||
4975 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; | |
4976 | ||
4977 | /* Turn off CPU output */ | |
4978 | temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
4979 | ||
4980 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
4981 | POSTING_READ(PCH_DREF_CONTROL); | |
4982 | udelay(200); | |
4983 | ||
4984 | /* Turn off the SSC source */ | |
4985 | temp &= ~DREF_SSC_SOURCE_MASK; | |
4986 | temp |= DREF_SSC_SOURCE_DISABLE; | |
4987 | ||
4988 | /* Turn off SSC1 */ | |
4989 | temp &= ~ DREF_SSC1_ENABLE; | |
4990 | ||
13d83a67 JB |
4991 | I915_WRITE(PCH_DREF_CONTROL, temp); |
4992 | POSTING_READ(PCH_DREF_CONTROL); | |
4993 | udelay(200); | |
4994 | } | |
4995 | } | |
4996 | ||
d9d444cb JB |
4997 | static int ironlake_get_refclk(struct drm_crtc *crtc) |
4998 | { | |
4999 | struct drm_device *dev = crtc->dev; | |
5000 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5001 | struct intel_encoder *encoder; | |
d9d444cb JB |
5002 | struct intel_encoder *edp_encoder = NULL; |
5003 | int num_connectors = 0; | |
5004 | bool is_lvds = false; | |
5005 | ||
6c2b7c12 | 5006 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
d9d444cb JB |
5007 | switch (encoder->type) { |
5008 | case INTEL_OUTPUT_LVDS: | |
5009 | is_lvds = true; | |
5010 | break; | |
5011 | case INTEL_OUTPUT_EDP: | |
5012 | edp_encoder = encoder; | |
5013 | break; | |
5014 | } | |
5015 | num_connectors++; | |
5016 | } | |
5017 | ||
5018 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) { | |
5019 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", | |
5020 | dev_priv->lvds_ssc_freq); | |
5021 | return dev_priv->lvds_ssc_freq * 1000; | |
5022 | } | |
5023 | ||
5024 | return 120000; | |
5025 | } | |
5026 | ||
c8203565 | 5027 | static void ironlake_set_pipeconf(struct drm_crtc *crtc, |
f564048e | 5028 | struct drm_display_mode *adjusted_mode, |
c8203565 | 5029 | bool dither) |
79e53945 | 5030 | { |
c8203565 | 5031 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
79e53945 JB |
5032 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5033 | int pipe = intel_crtc->pipe; | |
c8203565 PZ |
5034 | uint32_t val; |
5035 | ||
5036 | val = I915_READ(PIPECONF(pipe)); | |
5037 | ||
5038 | val &= ~PIPE_BPC_MASK; | |
5039 | switch (intel_crtc->bpp) { | |
5040 | case 18: | |
5041 | val |= PIPE_6BPC; | |
5042 | break; | |
5043 | case 24: | |
5044 | val |= PIPE_8BPC; | |
5045 | break; | |
5046 | case 30: | |
5047 | val |= PIPE_10BPC; | |
5048 | break; | |
5049 | case 36: | |
5050 | val |= PIPE_12BPC; | |
5051 | break; | |
5052 | default: | |
cc769b62 PZ |
5053 | /* Case prevented by intel_choose_pipe_bpp_dither. */ |
5054 | BUG(); | |
c8203565 PZ |
5055 | } |
5056 | ||
5057 | val &= ~(PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK); | |
5058 | if (dither) | |
5059 | val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP); | |
5060 | ||
5061 | val &= ~PIPECONF_INTERLACE_MASK; | |
5062 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) | |
5063 | val |= PIPECONF_INTERLACED_ILK; | |
5064 | else | |
5065 | val |= PIPECONF_PROGRESSIVE; | |
5066 | ||
5067 | I915_WRITE(PIPECONF(pipe), val); | |
5068 | POSTING_READ(PIPECONF(pipe)); | |
5069 | } | |
5070 | ||
ee2b0b38 PZ |
5071 | static void haswell_set_pipeconf(struct drm_crtc *crtc, |
5072 | struct drm_display_mode *adjusted_mode, | |
5073 | bool dither) | |
5074 | { | |
5075 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; | |
5076 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
702e7a56 | 5077 | enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder; |
ee2b0b38 PZ |
5078 | uint32_t val; |
5079 | ||
702e7a56 | 5080 | val = I915_READ(PIPECONF(cpu_transcoder)); |
ee2b0b38 PZ |
5081 | |
5082 | val &= ~(PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK); | |
5083 | if (dither) | |
5084 | val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP); | |
5085 | ||
5086 | val &= ~PIPECONF_INTERLACE_MASK_HSW; | |
5087 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) | |
5088 | val |= PIPECONF_INTERLACED_ILK; | |
5089 | else | |
5090 | val |= PIPECONF_PROGRESSIVE; | |
5091 | ||
702e7a56 PZ |
5092 | I915_WRITE(PIPECONF(cpu_transcoder), val); |
5093 | POSTING_READ(PIPECONF(cpu_transcoder)); | |
ee2b0b38 PZ |
5094 | } |
5095 | ||
6591c6e4 PZ |
5096 | static bool ironlake_compute_clocks(struct drm_crtc *crtc, |
5097 | struct drm_display_mode *adjusted_mode, | |
5098 | intel_clock_t *clock, | |
5099 | bool *has_reduced_clock, | |
5100 | intel_clock_t *reduced_clock) | |
5101 | { | |
5102 | struct drm_device *dev = crtc->dev; | |
5103 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5104 | struct intel_encoder *intel_encoder; | |
5105 | int refclk; | |
d4906093 | 5106 | const intel_limit_t *limit; |
6591c6e4 | 5107 | bool ret, is_sdvo = false, is_tv = false, is_lvds = false; |
79e53945 | 5108 | |
6591c6e4 PZ |
5109 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
5110 | switch (intel_encoder->type) { | |
79e53945 JB |
5111 | case INTEL_OUTPUT_LVDS: |
5112 | is_lvds = true; | |
5113 | break; | |
5114 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 5115 | case INTEL_OUTPUT_HDMI: |
79e53945 | 5116 | is_sdvo = true; |
6591c6e4 | 5117 | if (intel_encoder->needs_tv_clock) |
e2f0ba97 | 5118 | is_tv = true; |
79e53945 | 5119 | break; |
79e53945 JB |
5120 | case INTEL_OUTPUT_TVOUT: |
5121 | is_tv = true; | |
5122 | break; | |
79e53945 JB |
5123 | } |
5124 | } | |
5125 | ||
d9d444cb | 5126 | refclk = ironlake_get_refclk(crtc); |
79e53945 | 5127 | |
d4906093 ML |
5128 | /* |
5129 | * Returns a set of divisors for the desired target clock with the given | |
5130 | * refclk, or FALSE. The returned values represent the clock equation: | |
5131 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
5132 | */ | |
1b894b59 | 5133 | limit = intel_limit(crtc, refclk); |
6591c6e4 PZ |
5134 | ret = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL, |
5135 | clock); | |
5136 | if (!ret) | |
5137 | return false; | |
cda4b7d3 | 5138 | |
ddc9003c | 5139 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
cec2f356 SP |
5140 | /* |
5141 | * Ensure we match the reduced clock's P to the target clock. | |
5142 | * If the clocks don't match, we can't switch the display clock | |
5143 | * by using the FP0/FP1. In such case we will disable the LVDS | |
5144 | * downclock feature. | |
5145 | */ | |
6591c6e4 PZ |
5146 | *has_reduced_clock = limit->find_pll(limit, crtc, |
5147 | dev_priv->lvds_downclock, | |
5148 | refclk, | |
5149 | clock, | |
5150 | reduced_clock); | |
652c393a | 5151 | } |
61e9653f DV |
5152 | |
5153 | if (is_sdvo && is_tv) | |
6591c6e4 PZ |
5154 | i9xx_adjust_sdvo_tv_clock(adjusted_mode, clock); |
5155 | ||
5156 | return true; | |
5157 | } | |
5158 | ||
01a415fd DV |
5159 | static void cpt_enable_fdi_bc_bifurcation(struct drm_device *dev) |
5160 | { | |
5161 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5162 | uint32_t temp; | |
5163 | ||
5164 | temp = I915_READ(SOUTH_CHICKEN1); | |
5165 | if (temp & FDI_BC_BIFURCATION_SELECT) | |
5166 | return; | |
5167 | ||
5168 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE); | |
5169 | WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE); | |
5170 | ||
5171 | temp |= FDI_BC_BIFURCATION_SELECT; | |
5172 | DRM_DEBUG_KMS("enabling fdi C rx\n"); | |
5173 | I915_WRITE(SOUTH_CHICKEN1, temp); | |
5174 | POSTING_READ(SOUTH_CHICKEN1); | |
5175 | } | |
5176 | ||
5177 | static bool ironlake_check_fdi_lanes(struct intel_crtc *intel_crtc) | |
5178 | { | |
5179 | struct drm_device *dev = intel_crtc->base.dev; | |
5180 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5181 | struct intel_crtc *pipe_B_crtc = | |
5182 | to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]); | |
5183 | ||
5184 | DRM_DEBUG_KMS("checking fdi config on pipe %i, lanes %i\n", | |
5185 | intel_crtc->pipe, intel_crtc->fdi_lanes); | |
5186 | if (intel_crtc->fdi_lanes > 4) { | |
5187 | DRM_DEBUG_KMS("invalid fdi lane config on pipe %i: %i lanes\n", | |
5188 | intel_crtc->pipe, intel_crtc->fdi_lanes); | |
5189 | /* Clamp lanes to avoid programming the hw with bogus values. */ | |
5190 | intel_crtc->fdi_lanes = 4; | |
5191 | ||
5192 | return false; | |
5193 | } | |
5194 | ||
5195 | if (dev_priv->num_pipe == 2) | |
5196 | return true; | |
5197 | ||
5198 | switch (intel_crtc->pipe) { | |
5199 | case PIPE_A: | |
5200 | return true; | |
5201 | case PIPE_B: | |
5202 | if (dev_priv->pipe_to_crtc_mapping[PIPE_C]->enabled && | |
5203 | intel_crtc->fdi_lanes > 2) { | |
5204 | DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %i: %i lanes\n", | |
5205 | intel_crtc->pipe, intel_crtc->fdi_lanes); | |
5206 | /* Clamp lanes to avoid programming the hw with bogus values. */ | |
5207 | intel_crtc->fdi_lanes = 2; | |
5208 | ||
5209 | return false; | |
5210 | } | |
5211 | ||
5212 | if (intel_crtc->fdi_lanes > 2) | |
5213 | WARN_ON(I915_READ(SOUTH_CHICKEN1) & FDI_BC_BIFURCATION_SELECT); | |
5214 | else | |
5215 | cpt_enable_fdi_bc_bifurcation(dev); | |
5216 | ||
5217 | return true; | |
5218 | case PIPE_C: | |
5219 | if (!pipe_B_crtc->base.enabled || pipe_B_crtc->fdi_lanes <= 2) { | |
5220 | if (intel_crtc->fdi_lanes > 2) { | |
5221 | DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %i: %i lanes\n", | |
5222 | intel_crtc->pipe, intel_crtc->fdi_lanes); | |
5223 | /* Clamp lanes to avoid programming the hw with bogus values. */ | |
5224 | intel_crtc->fdi_lanes = 2; | |
5225 | ||
5226 | return false; | |
5227 | } | |
5228 | } else { | |
5229 | DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n"); | |
5230 | return false; | |
5231 | } | |
5232 | ||
5233 | cpt_enable_fdi_bc_bifurcation(dev); | |
5234 | ||
5235 | return true; | |
5236 | default: | |
5237 | BUG(); | |
5238 | } | |
5239 | } | |
5240 | ||
f48d8f23 PZ |
5241 | static void ironlake_set_m_n(struct drm_crtc *crtc, |
5242 | struct drm_display_mode *mode, | |
5243 | struct drm_display_mode *adjusted_mode) | |
79e53945 JB |
5244 | { |
5245 | struct drm_device *dev = crtc->dev; | |
5246 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5247 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
afe2fcf5 | 5248 | enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder; |
f48d8f23 | 5249 | struct intel_encoder *intel_encoder, *edp_encoder = NULL; |
2c07245f | 5250 | struct fdi_m_n m_n = {0}; |
f48d8f23 PZ |
5251 | int target_clock, pixel_multiplier, lane, link_bw; |
5252 | bool is_dp = false, is_cpu_edp = false; | |
79e53945 | 5253 | |
f48d8f23 PZ |
5254 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
5255 | switch (intel_encoder->type) { | |
a4fc5ed6 KP |
5256 | case INTEL_OUTPUT_DISPLAYPORT: |
5257 | is_dp = true; | |
5258 | break; | |
32f9d658 | 5259 | case INTEL_OUTPUT_EDP: |
e3aef172 | 5260 | is_dp = true; |
f48d8f23 | 5261 | if (!intel_encoder_is_pch_edp(&intel_encoder->base)) |
e3aef172 | 5262 | is_cpu_edp = true; |
f48d8f23 | 5263 | edp_encoder = intel_encoder; |
32f9d658 | 5264 | break; |
79e53945 | 5265 | } |
79e53945 | 5266 | } |
61e9653f | 5267 | |
2c07245f | 5268 | /* FDI link */ |
8febb297 EA |
5269 | pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); |
5270 | lane = 0; | |
5271 | /* CPU eDP doesn't require FDI link, so just set DP M/N | |
5272 | according to current link config */ | |
e3aef172 | 5273 | if (is_cpu_edp) { |
e3aef172 | 5274 | intel_edp_link_config(edp_encoder, &lane, &link_bw); |
8febb297 | 5275 | } else { |
8febb297 EA |
5276 | /* FDI is a binary signal running at ~2.7GHz, encoding |
5277 | * each output octet as 10 bits. The actual frequency | |
5278 | * is stored as a divider into a 100MHz clock, and the | |
5279 | * mode pixel clock is stored in units of 1KHz. | |
5280 | * Hence the bw of each lane in terms of the mode signal | |
5281 | * is: | |
5282 | */ | |
5283 | link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10; | |
5284 | } | |
58a27471 | 5285 | |
94bf2ced DV |
5286 | /* [e]DP over FDI requires target mode clock instead of link clock. */ |
5287 | if (edp_encoder) | |
5288 | target_clock = intel_edp_target_clock(edp_encoder, mode); | |
5289 | else if (is_dp) | |
5290 | target_clock = mode->clock; | |
5291 | else | |
5292 | target_clock = adjusted_mode->clock; | |
5293 | ||
8febb297 EA |
5294 | if (!lane) { |
5295 | /* | |
5296 | * Account for spread spectrum to avoid | |
5297 | * oversubscribing the link. Max center spread | |
5298 | * is 2.5%; use 5% for safety's sake. | |
5299 | */ | |
5a354204 | 5300 | u32 bps = target_clock * intel_crtc->bpp * 21 / 20; |
8febb297 | 5301 | lane = bps / (link_bw * 8) + 1; |
5eb08b69 | 5302 | } |
2c07245f | 5303 | |
8febb297 EA |
5304 | intel_crtc->fdi_lanes = lane; |
5305 | ||
5306 | if (pixel_multiplier > 1) | |
5307 | link_bw *= pixel_multiplier; | |
5a354204 JB |
5308 | ironlake_compute_m_n(intel_crtc->bpp, lane, target_clock, link_bw, |
5309 | &m_n); | |
8febb297 | 5310 | |
afe2fcf5 PZ |
5311 | I915_WRITE(PIPE_DATA_M1(cpu_transcoder), TU_SIZE(m_n.tu) | m_n.gmch_m); |
5312 | I915_WRITE(PIPE_DATA_N1(cpu_transcoder), m_n.gmch_n); | |
5313 | I915_WRITE(PIPE_LINK_M1(cpu_transcoder), m_n.link_m); | |
5314 | I915_WRITE(PIPE_LINK_N1(cpu_transcoder), m_n.link_n); | |
f48d8f23 PZ |
5315 | } |
5316 | ||
de13a2e3 PZ |
5317 | static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc, |
5318 | struct drm_display_mode *adjusted_mode, | |
5319 | intel_clock_t *clock, u32 fp) | |
79e53945 | 5320 | { |
de13a2e3 | 5321 | struct drm_crtc *crtc = &intel_crtc->base; |
79e53945 JB |
5322 | struct drm_device *dev = crtc->dev; |
5323 | struct drm_i915_private *dev_priv = dev->dev_private; | |
de13a2e3 PZ |
5324 | struct intel_encoder *intel_encoder; |
5325 | uint32_t dpll; | |
5326 | int factor, pixel_multiplier, num_connectors = 0; | |
5327 | bool is_lvds = false, is_sdvo = false, is_tv = false; | |
5328 | bool is_dp = false, is_cpu_edp = false; | |
79e53945 | 5329 | |
de13a2e3 PZ |
5330 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
5331 | switch (intel_encoder->type) { | |
79e53945 JB |
5332 | case INTEL_OUTPUT_LVDS: |
5333 | is_lvds = true; | |
5334 | break; | |
5335 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 5336 | case INTEL_OUTPUT_HDMI: |
79e53945 | 5337 | is_sdvo = true; |
de13a2e3 | 5338 | if (intel_encoder->needs_tv_clock) |
e2f0ba97 | 5339 | is_tv = true; |
79e53945 | 5340 | break; |
79e53945 JB |
5341 | case INTEL_OUTPUT_TVOUT: |
5342 | is_tv = true; | |
5343 | break; | |
a4fc5ed6 KP |
5344 | case INTEL_OUTPUT_DISPLAYPORT: |
5345 | is_dp = true; | |
5346 | break; | |
32f9d658 | 5347 | case INTEL_OUTPUT_EDP: |
e3aef172 | 5348 | is_dp = true; |
de13a2e3 | 5349 | if (!intel_encoder_is_pch_edp(&intel_encoder->base)) |
e3aef172 | 5350 | is_cpu_edp = true; |
32f9d658 | 5351 | break; |
79e53945 | 5352 | } |
43565a06 | 5353 | |
c751ce4f | 5354 | num_connectors++; |
79e53945 | 5355 | } |
79e53945 | 5356 | |
c1858123 | 5357 | /* Enable autotuning of the PLL clock (if permissible) */ |
8febb297 EA |
5358 | factor = 21; |
5359 | if (is_lvds) { | |
5360 | if ((intel_panel_use_ssc(dev_priv) && | |
5361 | dev_priv->lvds_ssc_freq == 100) || | |
5362 | (I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP) | |
5363 | factor = 25; | |
5364 | } else if (is_sdvo && is_tv) | |
5365 | factor = 20; | |
c1858123 | 5366 | |
de13a2e3 | 5367 | if (clock->m < factor * clock->n) |
8febb297 | 5368 | fp |= FP_CB_TUNE; |
2c07245f | 5369 | |
5eddb70b | 5370 | dpll = 0; |
2c07245f | 5371 | |
a07d6787 EA |
5372 | if (is_lvds) |
5373 | dpll |= DPLLB_MODE_LVDS; | |
5374 | else | |
5375 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
5376 | if (is_sdvo) { | |
de13a2e3 | 5377 | pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); |
a07d6787 EA |
5378 | if (pixel_multiplier > 1) { |
5379 | dpll |= (pixel_multiplier - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; | |
79e53945 | 5380 | } |
a07d6787 EA |
5381 | dpll |= DPLL_DVO_HIGH_SPEED; |
5382 | } | |
e3aef172 | 5383 | if (is_dp && !is_cpu_edp) |
a07d6787 | 5384 | dpll |= DPLL_DVO_HIGH_SPEED; |
79e53945 | 5385 | |
a07d6787 | 5386 | /* compute bitmask from p1 value */ |
de13a2e3 | 5387 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
a07d6787 | 5388 | /* also FPA1 */ |
de13a2e3 | 5389 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; |
a07d6787 | 5390 | |
de13a2e3 | 5391 | switch (clock->p2) { |
a07d6787 EA |
5392 | case 5: |
5393 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
5394 | break; | |
5395 | case 7: | |
5396 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
5397 | break; | |
5398 | case 10: | |
5399 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
5400 | break; | |
5401 | case 14: | |
5402 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
5403 | break; | |
79e53945 JB |
5404 | } |
5405 | ||
43565a06 KH |
5406 | if (is_sdvo && is_tv) |
5407 | dpll |= PLL_REF_INPUT_TVCLKINBC; | |
5408 | else if (is_tv) | |
79e53945 | 5409 | /* XXX: just matching BIOS for now */ |
43565a06 | 5410 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ |
79e53945 | 5411 | dpll |= 3; |
a7615030 | 5412 | else if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
43565a06 | 5413 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
79e53945 JB |
5414 | else |
5415 | dpll |= PLL_REF_INPUT_DREFCLK; | |
5416 | ||
de13a2e3 PZ |
5417 | return dpll; |
5418 | } | |
5419 | ||
5420 | static int ironlake_crtc_mode_set(struct drm_crtc *crtc, | |
5421 | struct drm_display_mode *mode, | |
5422 | struct drm_display_mode *adjusted_mode, | |
5423 | int x, int y, | |
5424 | struct drm_framebuffer *fb) | |
5425 | { | |
5426 | struct drm_device *dev = crtc->dev; | |
5427 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5428 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5429 | int pipe = intel_crtc->pipe; | |
5430 | int plane = intel_crtc->plane; | |
5431 | int num_connectors = 0; | |
5432 | intel_clock_t clock, reduced_clock; | |
5433 | u32 dpll, fp = 0, fp2 = 0; | |
e2f12b07 PZ |
5434 | bool ok, has_reduced_clock = false; |
5435 | bool is_lvds = false, is_dp = false, is_cpu_edp = false; | |
de13a2e3 PZ |
5436 | struct intel_encoder *encoder; |
5437 | u32 temp; | |
5438 | int ret; | |
01a415fd | 5439 | bool dither, fdi_config_ok; |
de13a2e3 PZ |
5440 | |
5441 | for_each_encoder_on_crtc(dev, crtc, encoder) { | |
5442 | switch (encoder->type) { | |
5443 | case INTEL_OUTPUT_LVDS: | |
5444 | is_lvds = true; | |
5445 | break; | |
de13a2e3 PZ |
5446 | case INTEL_OUTPUT_DISPLAYPORT: |
5447 | is_dp = true; | |
5448 | break; | |
5449 | case INTEL_OUTPUT_EDP: | |
5450 | is_dp = true; | |
e2f12b07 | 5451 | if (!intel_encoder_is_pch_edp(&encoder->base)) |
de13a2e3 PZ |
5452 | is_cpu_edp = true; |
5453 | break; | |
5454 | } | |
5455 | ||
5456 | num_connectors++; | |
a07d6787 | 5457 | } |
79e53945 | 5458 | |
5dc5298b PZ |
5459 | WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)), |
5460 | "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev)); | |
a07d6787 | 5461 | |
de13a2e3 PZ |
5462 | ok = ironlake_compute_clocks(crtc, adjusted_mode, &clock, |
5463 | &has_reduced_clock, &reduced_clock); | |
5464 | if (!ok) { | |
5465 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
5466 | return -EINVAL; | |
79e53945 JB |
5467 | } |
5468 | ||
de13a2e3 PZ |
5469 | /* Ensure that the cursor is valid for the new mode before changing... */ |
5470 | intel_crtc_update_cursor(crtc, true); | |
5471 | ||
5472 | /* determine panel color depth */ | |
c8241969 JN |
5473 | dither = intel_choose_pipe_bpp_dither(crtc, fb, &intel_crtc->bpp, |
5474 | adjusted_mode); | |
de13a2e3 PZ |
5475 | if (is_lvds && dev_priv->lvds_dither) |
5476 | dither = true; | |
5477 | ||
5478 | fp = clock.n << 16 | clock.m1 << 8 | clock.m2; | |
5479 | if (has_reduced_clock) | |
5480 | fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 | | |
5481 | reduced_clock.m2; | |
5482 | ||
5483 | dpll = ironlake_compute_dpll(intel_crtc, adjusted_mode, &clock, fp); | |
79e53945 | 5484 | |
f7cb34d4 | 5485 | DRM_DEBUG_KMS("Mode for pipe %d:\n", pipe); |
79e53945 JB |
5486 | drm_mode_debug_printmodeline(mode); |
5487 | ||
5dc5298b PZ |
5488 | /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */ |
5489 | if (!is_cpu_edp) { | |
ee7b9f93 | 5490 | struct intel_pch_pll *pll; |
4b645f14 | 5491 | |
ee7b9f93 JB |
5492 | pll = intel_get_pch_pll(intel_crtc, dpll, fp); |
5493 | if (pll == NULL) { | |
5494 | DRM_DEBUG_DRIVER("failed to find PLL for pipe %d\n", | |
5495 | pipe); | |
4b645f14 JB |
5496 | return -EINVAL; |
5497 | } | |
ee7b9f93 JB |
5498 | } else |
5499 | intel_put_pch_pll(intel_crtc); | |
79e53945 JB |
5500 | |
5501 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. | |
5502 | * This is an exception to the general rule that mode_set doesn't turn | |
5503 | * things on. | |
5504 | */ | |
5505 | if (is_lvds) { | |
fae14981 | 5506 | temp = I915_READ(PCH_LVDS); |
5eddb70b | 5507 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; |
7885d205 JB |
5508 | if (HAS_PCH_CPT(dev)) { |
5509 | temp &= ~PORT_TRANS_SEL_MASK; | |
4b645f14 | 5510 | temp |= PORT_TRANS_SEL_CPT(pipe); |
7885d205 JB |
5511 | } else { |
5512 | if (pipe == 1) | |
5513 | temp |= LVDS_PIPEB_SELECT; | |
5514 | else | |
5515 | temp &= ~LVDS_PIPEB_SELECT; | |
5516 | } | |
4b645f14 | 5517 | |
a3e17eb8 | 5518 | /* set the corresponsding LVDS_BORDER bit */ |
5eddb70b | 5519 | temp |= dev_priv->lvds_border_bits; |
79e53945 JB |
5520 | /* Set the B0-B3 data pairs corresponding to whether we're going to |
5521 | * set the DPLLs for dual-channel mode or not. | |
5522 | */ | |
5523 | if (clock.p2 == 7) | |
5eddb70b | 5524 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; |
79e53945 | 5525 | else |
5eddb70b | 5526 | temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); |
79e53945 JB |
5527 | |
5528 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) | |
5529 | * appropriately here, but we need to look more thoroughly into how | |
5530 | * panels behave in the two modes. | |
5531 | */ | |
284d5df5 | 5532 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); |
aa9b500d | 5533 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) |
284d5df5 | 5534 | temp |= LVDS_HSYNC_POLARITY; |
aa9b500d | 5535 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) |
284d5df5 | 5536 | temp |= LVDS_VSYNC_POLARITY; |
fae14981 | 5537 | I915_WRITE(PCH_LVDS, temp); |
79e53945 | 5538 | } |
434ed097 | 5539 | |
e3aef172 | 5540 | if (is_dp && !is_cpu_edp) { |
a4fc5ed6 | 5541 | intel_dp_set_m_n(crtc, mode, adjusted_mode); |
8febb297 | 5542 | } else { |
8db9d77b | 5543 | /* For non-DP output, clear any trans DP clock recovery setting.*/ |
9db4a9c7 JB |
5544 | I915_WRITE(TRANSDATA_M1(pipe), 0); |
5545 | I915_WRITE(TRANSDATA_N1(pipe), 0); | |
5546 | I915_WRITE(TRANSDPLINK_M1(pipe), 0); | |
5547 | I915_WRITE(TRANSDPLINK_N1(pipe), 0); | |
8db9d77b | 5548 | } |
79e53945 | 5549 | |
dafd226c DV |
5550 | for_each_encoder_on_crtc(dev, crtc, encoder) |
5551 | if (encoder->pre_pll_enable) | |
5552 | encoder->pre_pll_enable(encoder); | |
5553 | ||
ee7b9f93 JB |
5554 | if (intel_crtc->pch_pll) { |
5555 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); | |
5eddb70b | 5556 | |
32f9d658 | 5557 | /* Wait for the clocks to stabilize. */ |
ee7b9f93 | 5558 | POSTING_READ(intel_crtc->pch_pll->pll_reg); |
32f9d658 ZW |
5559 | udelay(150); |
5560 | ||
8febb297 EA |
5561 | /* The pixel multiplier can only be updated once the |
5562 | * DPLL is enabled and the clocks are stable. | |
5563 | * | |
5564 | * So write it again. | |
5565 | */ | |
ee7b9f93 | 5566 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); |
79e53945 | 5567 | } |
79e53945 | 5568 | |
5eddb70b | 5569 | intel_crtc->lowfreq_avail = false; |
ee7b9f93 | 5570 | if (intel_crtc->pch_pll) { |
4b645f14 | 5571 | if (is_lvds && has_reduced_clock && i915_powersave) { |
ee7b9f93 | 5572 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp2); |
4b645f14 | 5573 | intel_crtc->lowfreq_avail = true; |
4b645f14 | 5574 | } else { |
ee7b9f93 | 5575 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp); |
652c393a JB |
5576 | } |
5577 | } | |
5578 | ||
b0e77b9c | 5579 | intel_set_pipe_timings(intel_crtc, mode, adjusted_mode); |
5eddb70b | 5580 | |
01a415fd DV |
5581 | /* Note, this also computes intel_crtc->fdi_lanes which is used below in |
5582 | * ironlake_check_fdi_lanes. */ | |
f48d8f23 | 5583 | ironlake_set_m_n(crtc, mode, adjusted_mode); |
2c07245f | 5584 | |
01a415fd | 5585 | fdi_config_ok = ironlake_check_fdi_lanes(intel_crtc); |
2c07245f | 5586 | |
e3aef172 | 5587 | if (is_cpu_edp) |
8febb297 | 5588 | ironlake_set_pll_edp(crtc, adjusted_mode->clock); |
2c07245f | 5589 | |
c8203565 | 5590 | ironlake_set_pipeconf(crtc, adjusted_mode, dither); |
79e53945 | 5591 | |
9d0498a2 | 5592 | intel_wait_for_vblank(dev, pipe); |
79e53945 | 5593 | |
a1f9e77e PZ |
5594 | /* Set up the display plane register */ |
5595 | I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE); | |
b24e7179 | 5596 | POSTING_READ(DSPCNTR(plane)); |
79e53945 | 5597 | |
94352cf9 | 5598 | ret = intel_pipe_set_base(crtc, x, y, fb); |
7662c8bd SL |
5599 | |
5600 | intel_update_watermarks(dev); | |
5601 | ||
1f8eeabf ED |
5602 | intel_update_linetime_watermarks(dev, pipe, adjusted_mode); |
5603 | ||
01a415fd | 5604 | return fdi_config_ok ? ret : -EINVAL; |
79e53945 JB |
5605 | } |
5606 | ||
09b4ddf9 PZ |
5607 | static int haswell_crtc_mode_set(struct drm_crtc *crtc, |
5608 | struct drm_display_mode *mode, | |
5609 | struct drm_display_mode *adjusted_mode, | |
5610 | int x, int y, | |
5611 | struct drm_framebuffer *fb) | |
5612 | { | |
5613 | struct drm_device *dev = crtc->dev; | |
5614 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5615 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5616 | int pipe = intel_crtc->pipe; | |
5617 | int plane = intel_crtc->plane; | |
5618 | int num_connectors = 0; | |
5619 | intel_clock_t clock, reduced_clock; | |
5dc5298b | 5620 | u32 dpll = 0, fp = 0, fp2 = 0; |
09b4ddf9 PZ |
5621 | bool ok, has_reduced_clock = false; |
5622 | bool is_lvds = false, is_dp = false, is_cpu_edp = false; | |
5623 | struct intel_encoder *encoder; | |
5624 | u32 temp; | |
5625 | int ret; | |
5626 | bool dither; | |
5627 | ||
5628 | for_each_encoder_on_crtc(dev, crtc, encoder) { | |
5629 | switch (encoder->type) { | |
5630 | case INTEL_OUTPUT_LVDS: | |
5631 | is_lvds = true; | |
5632 | break; | |
5633 | case INTEL_OUTPUT_DISPLAYPORT: | |
5634 | is_dp = true; | |
5635 | break; | |
5636 | case INTEL_OUTPUT_EDP: | |
5637 | is_dp = true; | |
5638 | if (!intel_encoder_is_pch_edp(&encoder->base)) | |
5639 | is_cpu_edp = true; | |
5640 | break; | |
5641 | } | |
5642 | ||
5643 | num_connectors++; | |
5644 | } | |
5645 | ||
a5c961d1 PZ |
5646 | if (is_cpu_edp) |
5647 | intel_crtc->cpu_transcoder = TRANSCODER_EDP; | |
5648 | else | |
5649 | intel_crtc->cpu_transcoder = pipe; | |
5650 | ||
5dc5298b PZ |
5651 | /* We are not sure yet this won't happen. */ |
5652 | WARN(!HAS_PCH_LPT(dev), "Unexpected PCH type %d\n", | |
5653 | INTEL_PCH_TYPE(dev)); | |
5654 | ||
5655 | WARN(num_connectors != 1, "%d connectors attached to pipe %c\n", | |
5656 | num_connectors, pipe_name(pipe)); | |
5657 | ||
702e7a56 | 5658 | WARN_ON(I915_READ(PIPECONF(intel_crtc->cpu_transcoder)) & |
1ce42920 PZ |
5659 | (PIPECONF_ENABLE | I965_PIPECONF_ACTIVE)); |
5660 | ||
5661 | WARN_ON(I915_READ(DSPCNTR(plane)) & DISPLAY_PLANE_ENABLE); | |
5662 | ||
6441ab5f PZ |
5663 | if (!intel_ddi_pll_mode_set(crtc, adjusted_mode->clock)) |
5664 | return -EINVAL; | |
5665 | ||
5dc5298b PZ |
5666 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) { |
5667 | ok = ironlake_compute_clocks(crtc, adjusted_mode, &clock, | |
5668 | &has_reduced_clock, | |
5669 | &reduced_clock); | |
5670 | if (!ok) { | |
5671 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
5672 | return -EINVAL; | |
5673 | } | |
09b4ddf9 PZ |
5674 | } |
5675 | ||
5676 | /* Ensure that the cursor is valid for the new mode before changing... */ | |
5677 | intel_crtc_update_cursor(crtc, true); | |
5678 | ||
5679 | /* determine panel color depth */ | |
c8241969 JN |
5680 | dither = intel_choose_pipe_bpp_dither(crtc, fb, &intel_crtc->bpp, |
5681 | adjusted_mode); | |
09b4ddf9 PZ |
5682 | if (is_lvds && dev_priv->lvds_dither) |
5683 | dither = true; | |
5684 | ||
09b4ddf9 PZ |
5685 | DRM_DEBUG_KMS("Mode for pipe %d:\n", pipe); |
5686 | drm_mode_debug_printmodeline(mode); | |
5687 | ||
5dc5298b PZ |
5688 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) { |
5689 | fp = clock.n << 16 | clock.m1 << 8 | clock.m2; | |
5690 | if (has_reduced_clock) | |
5691 | fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 | | |
5692 | reduced_clock.m2; | |
5693 | ||
5694 | dpll = ironlake_compute_dpll(intel_crtc, adjusted_mode, &clock, | |
5695 | fp); | |
5696 | ||
5697 | /* CPU eDP is the only output that doesn't need a PCH PLL of its | |
5698 | * own on pre-Haswell/LPT generation */ | |
5699 | if (!is_cpu_edp) { | |
5700 | struct intel_pch_pll *pll; | |
5701 | ||
5702 | pll = intel_get_pch_pll(intel_crtc, dpll, fp); | |
5703 | if (pll == NULL) { | |
5704 | DRM_DEBUG_DRIVER("failed to find PLL for pipe %d\n", | |
5705 | pipe); | |
5706 | return -EINVAL; | |
5707 | } | |
5708 | } else | |
5709 | intel_put_pch_pll(intel_crtc); | |
09b4ddf9 | 5710 | |
5dc5298b PZ |
5711 | /* The LVDS pin pair needs to be on before the DPLLs are |
5712 | * enabled. This is an exception to the general rule that | |
5713 | * mode_set doesn't turn things on. | |
5714 | */ | |
5715 | if (is_lvds) { | |
5716 | temp = I915_READ(PCH_LVDS); | |
5717 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; | |
5718 | if (HAS_PCH_CPT(dev)) { | |
5719 | temp &= ~PORT_TRANS_SEL_MASK; | |
5720 | temp |= PORT_TRANS_SEL_CPT(pipe); | |
5721 | } else { | |
5722 | if (pipe == 1) | |
5723 | temp |= LVDS_PIPEB_SELECT; | |
5724 | else | |
5725 | temp &= ~LVDS_PIPEB_SELECT; | |
5726 | } | |
09b4ddf9 | 5727 | |
5dc5298b PZ |
5728 | /* set the corresponsding LVDS_BORDER bit */ |
5729 | temp |= dev_priv->lvds_border_bits; | |
5730 | /* Set the B0-B3 data pairs corresponding to whether | |
5731 | * we're going to set the DPLLs for dual-channel mode or | |
5732 | * not. | |
5733 | */ | |
5734 | if (clock.p2 == 7) | |
5735 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; | |
09b4ddf9 | 5736 | else |
5dc5298b PZ |
5737 | temp &= ~(LVDS_B0B3_POWER_UP | |
5738 | LVDS_CLKB_POWER_UP); | |
5739 | ||
5740 | /* It would be nice to set 24 vs 18-bit mode | |
5741 | * (LVDS_A3_POWER_UP) appropriately here, but we need to | |
5742 | * look more thoroughly into how panels behave in the | |
5743 | * two modes. | |
5744 | */ | |
5745 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); | |
5746 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) | |
5747 | temp |= LVDS_HSYNC_POLARITY; | |
5748 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) | |
5749 | temp |= LVDS_VSYNC_POLARITY; | |
5750 | I915_WRITE(PCH_LVDS, temp); | |
09b4ddf9 | 5751 | } |
09b4ddf9 PZ |
5752 | } |
5753 | ||
5754 | if (is_dp && !is_cpu_edp) { | |
5755 | intel_dp_set_m_n(crtc, mode, adjusted_mode); | |
5756 | } else { | |
5dc5298b PZ |
5757 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) { |
5758 | /* For non-DP output, clear any trans DP clock recovery | |
5759 | * setting.*/ | |
5760 | I915_WRITE(TRANSDATA_M1(pipe), 0); | |
5761 | I915_WRITE(TRANSDATA_N1(pipe), 0); | |
5762 | I915_WRITE(TRANSDPLINK_M1(pipe), 0); | |
5763 | I915_WRITE(TRANSDPLINK_N1(pipe), 0); | |
5764 | } | |
09b4ddf9 PZ |
5765 | } |
5766 | ||
5767 | intel_crtc->lowfreq_avail = false; | |
5dc5298b PZ |
5768 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) { |
5769 | if (intel_crtc->pch_pll) { | |
5770 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); | |
5771 | ||
5772 | /* Wait for the clocks to stabilize. */ | |
5773 | POSTING_READ(intel_crtc->pch_pll->pll_reg); | |
5774 | udelay(150); | |
5775 | ||
5776 | /* The pixel multiplier can only be updated once the | |
5777 | * DPLL is enabled and the clocks are stable. | |
5778 | * | |
5779 | * So write it again. | |
5780 | */ | |
5781 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); | |
5782 | } | |
5783 | ||
5784 | if (intel_crtc->pch_pll) { | |
5785 | if (is_lvds && has_reduced_clock && i915_powersave) { | |
5786 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp2); | |
5787 | intel_crtc->lowfreq_avail = true; | |
5788 | } else { | |
5789 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp); | |
5790 | } | |
09b4ddf9 PZ |
5791 | } |
5792 | } | |
5793 | ||
5794 | intel_set_pipe_timings(intel_crtc, mode, adjusted_mode); | |
5795 | ||
1eb8dfec PZ |
5796 | if (!is_dp || is_cpu_edp) |
5797 | ironlake_set_m_n(crtc, mode, adjusted_mode); | |
09b4ddf9 | 5798 | |
5dc5298b PZ |
5799 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) |
5800 | if (is_cpu_edp) | |
5801 | ironlake_set_pll_edp(crtc, adjusted_mode->clock); | |
09b4ddf9 | 5802 | |
ee2b0b38 | 5803 | haswell_set_pipeconf(crtc, adjusted_mode, dither); |
09b4ddf9 | 5804 | |
09b4ddf9 PZ |
5805 | /* Set up the display plane register */ |
5806 | I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE); | |
5807 | POSTING_READ(DSPCNTR(plane)); | |
5808 | ||
5809 | ret = intel_pipe_set_base(crtc, x, y, fb); | |
5810 | ||
5811 | intel_update_watermarks(dev); | |
5812 | ||
5813 | intel_update_linetime_watermarks(dev, pipe, adjusted_mode); | |
5814 | ||
1f803ee5 | 5815 | return ret; |
79e53945 JB |
5816 | } |
5817 | ||
f564048e EA |
5818 | static int intel_crtc_mode_set(struct drm_crtc *crtc, |
5819 | struct drm_display_mode *mode, | |
5820 | struct drm_display_mode *adjusted_mode, | |
5821 | int x, int y, | |
94352cf9 | 5822 | struct drm_framebuffer *fb) |
f564048e EA |
5823 | { |
5824 | struct drm_device *dev = crtc->dev; | |
5825 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9256aa19 DV |
5826 | struct drm_encoder_helper_funcs *encoder_funcs; |
5827 | struct intel_encoder *encoder; | |
0b701d27 EA |
5828 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5829 | int pipe = intel_crtc->pipe; | |
f564048e EA |
5830 | int ret; |
5831 | ||
0b701d27 | 5832 | drm_vblank_pre_modeset(dev, pipe); |
7662c8bd | 5833 | |
f564048e | 5834 | ret = dev_priv->display.crtc_mode_set(crtc, mode, adjusted_mode, |
94352cf9 | 5835 | x, y, fb); |
79e53945 | 5836 | drm_vblank_post_modeset(dev, pipe); |
5c3b82e2 | 5837 | |
9256aa19 DV |
5838 | if (ret != 0) |
5839 | return ret; | |
5840 | ||
5841 | for_each_encoder_on_crtc(dev, crtc, encoder) { | |
5842 | DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n", | |
5843 | encoder->base.base.id, | |
5844 | drm_get_encoder_name(&encoder->base), | |
5845 | mode->base.id, mode->name); | |
5846 | encoder_funcs = encoder->base.helper_private; | |
5847 | encoder_funcs->mode_set(&encoder->base, mode, adjusted_mode); | |
5848 | } | |
5849 | ||
5850 | return 0; | |
79e53945 JB |
5851 | } |
5852 | ||
3a9627f4 WF |
5853 | static bool intel_eld_uptodate(struct drm_connector *connector, |
5854 | int reg_eldv, uint32_t bits_eldv, | |
5855 | int reg_elda, uint32_t bits_elda, | |
5856 | int reg_edid) | |
5857 | { | |
5858 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
5859 | uint8_t *eld = connector->eld; | |
5860 | uint32_t i; | |
5861 | ||
5862 | i = I915_READ(reg_eldv); | |
5863 | i &= bits_eldv; | |
5864 | ||
5865 | if (!eld[0]) | |
5866 | return !i; | |
5867 | ||
5868 | if (!i) | |
5869 | return false; | |
5870 | ||
5871 | i = I915_READ(reg_elda); | |
5872 | i &= ~bits_elda; | |
5873 | I915_WRITE(reg_elda, i); | |
5874 | ||
5875 | for (i = 0; i < eld[2]; i++) | |
5876 | if (I915_READ(reg_edid) != *((uint32_t *)eld + i)) | |
5877 | return false; | |
5878 | ||
5879 | return true; | |
5880 | } | |
5881 | ||
e0dac65e WF |
5882 | static void g4x_write_eld(struct drm_connector *connector, |
5883 | struct drm_crtc *crtc) | |
5884 | { | |
5885 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
5886 | uint8_t *eld = connector->eld; | |
5887 | uint32_t eldv; | |
5888 | uint32_t len; | |
5889 | uint32_t i; | |
5890 | ||
5891 | i = I915_READ(G4X_AUD_VID_DID); | |
5892 | ||
5893 | if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL) | |
5894 | eldv = G4X_ELDV_DEVCL_DEVBLC; | |
5895 | else | |
5896 | eldv = G4X_ELDV_DEVCTG; | |
5897 | ||
3a9627f4 WF |
5898 | if (intel_eld_uptodate(connector, |
5899 | G4X_AUD_CNTL_ST, eldv, | |
5900 | G4X_AUD_CNTL_ST, G4X_ELD_ADDR, | |
5901 | G4X_HDMIW_HDMIEDID)) | |
5902 | return; | |
5903 | ||
e0dac65e WF |
5904 | i = I915_READ(G4X_AUD_CNTL_ST); |
5905 | i &= ~(eldv | G4X_ELD_ADDR); | |
5906 | len = (i >> 9) & 0x1f; /* ELD buffer size */ | |
5907 | I915_WRITE(G4X_AUD_CNTL_ST, i); | |
5908 | ||
5909 | if (!eld[0]) | |
5910 | return; | |
5911 | ||
5912 | len = min_t(uint8_t, eld[2], len); | |
5913 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
5914 | for (i = 0; i < len; i++) | |
5915 | I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i)); | |
5916 | ||
5917 | i = I915_READ(G4X_AUD_CNTL_ST); | |
5918 | i |= eldv; | |
5919 | I915_WRITE(G4X_AUD_CNTL_ST, i); | |
5920 | } | |
5921 | ||
83358c85 WX |
5922 | static void haswell_write_eld(struct drm_connector *connector, |
5923 | struct drm_crtc *crtc) | |
5924 | { | |
5925 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
5926 | uint8_t *eld = connector->eld; | |
5927 | struct drm_device *dev = crtc->dev; | |
5928 | uint32_t eldv; | |
5929 | uint32_t i; | |
5930 | int len; | |
5931 | int pipe = to_intel_crtc(crtc)->pipe; | |
5932 | int tmp; | |
5933 | ||
5934 | int hdmiw_hdmiedid = HSW_AUD_EDID_DATA(pipe); | |
5935 | int aud_cntl_st = HSW_AUD_DIP_ELD_CTRL(pipe); | |
5936 | int aud_config = HSW_AUD_CFG(pipe); | |
5937 | int aud_cntrl_st2 = HSW_AUD_PIN_ELD_CP_VLD; | |
5938 | ||
5939 | ||
5940 | DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n"); | |
5941 | ||
5942 | /* Audio output enable */ | |
5943 | DRM_DEBUG_DRIVER("HDMI audio: enable codec\n"); | |
5944 | tmp = I915_READ(aud_cntrl_st2); | |
5945 | tmp |= (AUDIO_OUTPUT_ENABLE_A << (pipe * 4)); | |
5946 | I915_WRITE(aud_cntrl_st2, tmp); | |
5947 | ||
5948 | /* Wait for 1 vertical blank */ | |
5949 | intel_wait_for_vblank(dev, pipe); | |
5950 | ||
5951 | /* Set ELD valid state */ | |
5952 | tmp = I915_READ(aud_cntrl_st2); | |
5953 | DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%8x\n", tmp); | |
5954 | tmp |= (AUDIO_ELD_VALID_A << (pipe * 4)); | |
5955 | I915_WRITE(aud_cntrl_st2, tmp); | |
5956 | tmp = I915_READ(aud_cntrl_st2); | |
5957 | DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%8x\n", tmp); | |
5958 | ||
5959 | /* Enable HDMI mode */ | |
5960 | tmp = I915_READ(aud_config); | |
5961 | DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%8x\n", tmp); | |
5962 | /* clear N_programing_enable and N_value_index */ | |
5963 | tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE); | |
5964 | I915_WRITE(aud_config, tmp); | |
5965 | ||
5966 | DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe)); | |
5967 | ||
5968 | eldv = AUDIO_ELD_VALID_A << (pipe * 4); | |
5969 | ||
5970 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { | |
5971 | DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n"); | |
5972 | eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */ | |
5973 | I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */ | |
5974 | } else | |
5975 | I915_WRITE(aud_config, 0); | |
5976 | ||
5977 | if (intel_eld_uptodate(connector, | |
5978 | aud_cntrl_st2, eldv, | |
5979 | aud_cntl_st, IBX_ELD_ADDRESS, | |
5980 | hdmiw_hdmiedid)) | |
5981 | return; | |
5982 | ||
5983 | i = I915_READ(aud_cntrl_st2); | |
5984 | i &= ~eldv; | |
5985 | I915_WRITE(aud_cntrl_st2, i); | |
5986 | ||
5987 | if (!eld[0]) | |
5988 | return; | |
5989 | ||
5990 | i = I915_READ(aud_cntl_st); | |
5991 | i &= ~IBX_ELD_ADDRESS; | |
5992 | I915_WRITE(aud_cntl_st, i); | |
5993 | i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */ | |
5994 | DRM_DEBUG_DRIVER("port num:%d\n", i); | |
5995 | ||
5996 | len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */ | |
5997 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
5998 | for (i = 0; i < len; i++) | |
5999 | I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i)); | |
6000 | ||
6001 | i = I915_READ(aud_cntrl_st2); | |
6002 | i |= eldv; | |
6003 | I915_WRITE(aud_cntrl_st2, i); | |
6004 | ||
6005 | } | |
6006 | ||
e0dac65e WF |
6007 | static void ironlake_write_eld(struct drm_connector *connector, |
6008 | struct drm_crtc *crtc) | |
6009 | { | |
6010 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
6011 | uint8_t *eld = connector->eld; | |
6012 | uint32_t eldv; | |
6013 | uint32_t i; | |
6014 | int len; | |
6015 | int hdmiw_hdmiedid; | |
b6daa025 | 6016 | int aud_config; |
e0dac65e WF |
6017 | int aud_cntl_st; |
6018 | int aud_cntrl_st2; | |
9b138a83 | 6019 | int pipe = to_intel_crtc(crtc)->pipe; |
e0dac65e | 6020 | |
b3f33cbf | 6021 | if (HAS_PCH_IBX(connector->dev)) { |
9b138a83 WX |
6022 | hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe); |
6023 | aud_config = IBX_AUD_CFG(pipe); | |
6024 | aud_cntl_st = IBX_AUD_CNTL_ST(pipe); | |
1202b4c6 | 6025 | aud_cntrl_st2 = IBX_AUD_CNTL_ST2; |
e0dac65e | 6026 | } else { |
9b138a83 WX |
6027 | hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe); |
6028 | aud_config = CPT_AUD_CFG(pipe); | |
6029 | aud_cntl_st = CPT_AUD_CNTL_ST(pipe); | |
1202b4c6 | 6030 | aud_cntrl_st2 = CPT_AUD_CNTRL_ST2; |
e0dac65e WF |
6031 | } |
6032 | ||
9b138a83 | 6033 | DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe)); |
e0dac65e WF |
6034 | |
6035 | i = I915_READ(aud_cntl_st); | |
9b138a83 | 6036 | i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */ |
e0dac65e WF |
6037 | if (!i) { |
6038 | DRM_DEBUG_DRIVER("Audio directed to unknown port\n"); | |
6039 | /* operate blindly on all ports */ | |
1202b4c6 WF |
6040 | eldv = IBX_ELD_VALIDB; |
6041 | eldv |= IBX_ELD_VALIDB << 4; | |
6042 | eldv |= IBX_ELD_VALIDB << 8; | |
e0dac65e WF |
6043 | } else { |
6044 | DRM_DEBUG_DRIVER("ELD on port %c\n", 'A' + i); | |
1202b4c6 | 6045 | eldv = IBX_ELD_VALIDB << ((i - 1) * 4); |
e0dac65e WF |
6046 | } |
6047 | ||
3a9627f4 WF |
6048 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
6049 | DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n"); | |
6050 | eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */ | |
b6daa025 WF |
6051 | I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */ |
6052 | } else | |
6053 | I915_WRITE(aud_config, 0); | |
e0dac65e | 6054 | |
3a9627f4 WF |
6055 | if (intel_eld_uptodate(connector, |
6056 | aud_cntrl_st2, eldv, | |
6057 | aud_cntl_st, IBX_ELD_ADDRESS, | |
6058 | hdmiw_hdmiedid)) | |
6059 | return; | |
6060 | ||
e0dac65e WF |
6061 | i = I915_READ(aud_cntrl_st2); |
6062 | i &= ~eldv; | |
6063 | I915_WRITE(aud_cntrl_st2, i); | |
6064 | ||
6065 | if (!eld[0]) | |
6066 | return; | |
6067 | ||
e0dac65e | 6068 | i = I915_READ(aud_cntl_st); |
1202b4c6 | 6069 | i &= ~IBX_ELD_ADDRESS; |
e0dac65e WF |
6070 | I915_WRITE(aud_cntl_st, i); |
6071 | ||
6072 | len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */ | |
6073 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
6074 | for (i = 0; i < len; i++) | |
6075 | I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i)); | |
6076 | ||
6077 | i = I915_READ(aud_cntrl_st2); | |
6078 | i |= eldv; | |
6079 | I915_WRITE(aud_cntrl_st2, i); | |
6080 | } | |
6081 | ||
6082 | void intel_write_eld(struct drm_encoder *encoder, | |
6083 | struct drm_display_mode *mode) | |
6084 | { | |
6085 | struct drm_crtc *crtc = encoder->crtc; | |
6086 | struct drm_connector *connector; | |
6087 | struct drm_device *dev = encoder->dev; | |
6088 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6089 | ||
6090 | connector = drm_select_eld(encoder, mode); | |
6091 | if (!connector) | |
6092 | return; | |
6093 | ||
6094 | DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", | |
6095 | connector->base.id, | |
6096 | drm_get_connector_name(connector), | |
6097 | connector->encoder->base.id, | |
6098 | drm_get_encoder_name(connector->encoder)); | |
6099 | ||
6100 | connector->eld[6] = drm_av_sync_delay(connector, mode) / 2; | |
6101 | ||
6102 | if (dev_priv->display.write_eld) | |
6103 | dev_priv->display.write_eld(connector, crtc); | |
6104 | } | |
6105 | ||
79e53945 JB |
6106 | /** Loads the palette/gamma unit for the CRTC with the prepared values */ |
6107 | void intel_crtc_load_lut(struct drm_crtc *crtc) | |
6108 | { | |
6109 | struct drm_device *dev = crtc->dev; | |
6110 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6111 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
9db4a9c7 | 6112 | int palreg = PALETTE(intel_crtc->pipe); |
79e53945 JB |
6113 | int i; |
6114 | ||
6115 | /* The clocks have to be on to load the palette. */ | |
aed3f09d | 6116 | if (!crtc->enabled || !intel_crtc->active) |
79e53945 JB |
6117 | return; |
6118 | ||
f2b115e6 | 6119 | /* use legacy palette for Ironlake */ |
bad720ff | 6120 | if (HAS_PCH_SPLIT(dev)) |
9db4a9c7 | 6121 | palreg = LGC_PALETTE(intel_crtc->pipe); |
2c07245f | 6122 | |
79e53945 JB |
6123 | for (i = 0; i < 256; i++) { |
6124 | I915_WRITE(palreg + 4 * i, | |
6125 | (intel_crtc->lut_r[i] << 16) | | |
6126 | (intel_crtc->lut_g[i] << 8) | | |
6127 | intel_crtc->lut_b[i]); | |
6128 | } | |
6129 | } | |
6130 | ||
560b85bb CW |
6131 | static void i845_update_cursor(struct drm_crtc *crtc, u32 base) |
6132 | { | |
6133 | struct drm_device *dev = crtc->dev; | |
6134 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6135 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6136 | bool visible = base != 0; | |
6137 | u32 cntl; | |
6138 | ||
6139 | if (intel_crtc->cursor_visible == visible) | |
6140 | return; | |
6141 | ||
9db4a9c7 | 6142 | cntl = I915_READ(_CURACNTR); |
560b85bb CW |
6143 | if (visible) { |
6144 | /* On these chipsets we can only modify the base whilst | |
6145 | * the cursor is disabled. | |
6146 | */ | |
9db4a9c7 | 6147 | I915_WRITE(_CURABASE, base); |
560b85bb CW |
6148 | |
6149 | cntl &= ~(CURSOR_FORMAT_MASK); | |
6150 | /* XXX width must be 64, stride 256 => 0x00 << 28 */ | |
6151 | cntl |= CURSOR_ENABLE | | |
6152 | CURSOR_GAMMA_ENABLE | | |
6153 | CURSOR_FORMAT_ARGB; | |
6154 | } else | |
6155 | cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE); | |
9db4a9c7 | 6156 | I915_WRITE(_CURACNTR, cntl); |
560b85bb CW |
6157 | |
6158 | intel_crtc->cursor_visible = visible; | |
6159 | } | |
6160 | ||
6161 | static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base) | |
6162 | { | |
6163 | struct drm_device *dev = crtc->dev; | |
6164 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6165 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6166 | int pipe = intel_crtc->pipe; | |
6167 | bool visible = base != 0; | |
6168 | ||
6169 | if (intel_crtc->cursor_visible != visible) { | |
548f245b | 6170 | uint32_t cntl = I915_READ(CURCNTR(pipe)); |
560b85bb CW |
6171 | if (base) { |
6172 | cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT); | |
6173 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; | |
6174 | cntl |= pipe << 28; /* Connect to correct pipe */ | |
6175 | } else { | |
6176 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); | |
6177 | cntl |= CURSOR_MODE_DISABLE; | |
6178 | } | |
9db4a9c7 | 6179 | I915_WRITE(CURCNTR(pipe), cntl); |
560b85bb CW |
6180 | |
6181 | intel_crtc->cursor_visible = visible; | |
6182 | } | |
6183 | /* and commit changes on next vblank */ | |
9db4a9c7 | 6184 | I915_WRITE(CURBASE(pipe), base); |
560b85bb CW |
6185 | } |
6186 | ||
65a21cd6 JB |
6187 | static void ivb_update_cursor(struct drm_crtc *crtc, u32 base) |
6188 | { | |
6189 | struct drm_device *dev = crtc->dev; | |
6190 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6191 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6192 | int pipe = intel_crtc->pipe; | |
6193 | bool visible = base != 0; | |
6194 | ||
6195 | if (intel_crtc->cursor_visible != visible) { | |
6196 | uint32_t cntl = I915_READ(CURCNTR_IVB(pipe)); | |
6197 | if (base) { | |
6198 | cntl &= ~CURSOR_MODE; | |
6199 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; | |
6200 | } else { | |
6201 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); | |
6202 | cntl |= CURSOR_MODE_DISABLE; | |
6203 | } | |
6204 | I915_WRITE(CURCNTR_IVB(pipe), cntl); | |
6205 | ||
6206 | intel_crtc->cursor_visible = visible; | |
6207 | } | |
6208 | /* and commit changes on next vblank */ | |
6209 | I915_WRITE(CURBASE_IVB(pipe), base); | |
6210 | } | |
6211 | ||
cda4b7d3 | 6212 | /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */ |
6b383a7f CW |
6213 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, |
6214 | bool on) | |
cda4b7d3 CW |
6215 | { |
6216 | struct drm_device *dev = crtc->dev; | |
6217 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6218 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6219 | int pipe = intel_crtc->pipe; | |
6220 | int x = intel_crtc->cursor_x; | |
6221 | int y = intel_crtc->cursor_y; | |
560b85bb | 6222 | u32 base, pos; |
cda4b7d3 CW |
6223 | bool visible; |
6224 | ||
6225 | pos = 0; | |
6226 | ||
6b383a7f | 6227 | if (on && crtc->enabled && crtc->fb) { |
cda4b7d3 CW |
6228 | base = intel_crtc->cursor_addr; |
6229 | if (x > (int) crtc->fb->width) | |
6230 | base = 0; | |
6231 | ||
6232 | if (y > (int) crtc->fb->height) | |
6233 | base = 0; | |
6234 | } else | |
6235 | base = 0; | |
6236 | ||
6237 | if (x < 0) { | |
6238 | if (x + intel_crtc->cursor_width < 0) | |
6239 | base = 0; | |
6240 | ||
6241 | pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT; | |
6242 | x = -x; | |
6243 | } | |
6244 | pos |= x << CURSOR_X_SHIFT; | |
6245 | ||
6246 | if (y < 0) { | |
6247 | if (y + intel_crtc->cursor_height < 0) | |
6248 | base = 0; | |
6249 | ||
6250 | pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT; | |
6251 | y = -y; | |
6252 | } | |
6253 | pos |= y << CURSOR_Y_SHIFT; | |
6254 | ||
6255 | visible = base != 0; | |
560b85bb | 6256 | if (!visible && !intel_crtc->cursor_visible) |
cda4b7d3 CW |
6257 | return; |
6258 | ||
0cd83aa9 | 6259 | if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) { |
65a21cd6 JB |
6260 | I915_WRITE(CURPOS_IVB(pipe), pos); |
6261 | ivb_update_cursor(crtc, base); | |
6262 | } else { | |
6263 | I915_WRITE(CURPOS(pipe), pos); | |
6264 | if (IS_845G(dev) || IS_I865G(dev)) | |
6265 | i845_update_cursor(crtc, base); | |
6266 | else | |
6267 | i9xx_update_cursor(crtc, base); | |
6268 | } | |
cda4b7d3 CW |
6269 | } |
6270 | ||
79e53945 | 6271 | static int intel_crtc_cursor_set(struct drm_crtc *crtc, |
05394f39 | 6272 | struct drm_file *file, |
79e53945 JB |
6273 | uint32_t handle, |
6274 | uint32_t width, uint32_t height) | |
6275 | { | |
6276 | struct drm_device *dev = crtc->dev; | |
6277 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6278 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
05394f39 | 6279 | struct drm_i915_gem_object *obj; |
cda4b7d3 | 6280 | uint32_t addr; |
3f8bc370 | 6281 | int ret; |
79e53945 | 6282 | |
79e53945 JB |
6283 | /* if we want to turn off the cursor ignore width and height */ |
6284 | if (!handle) { | |
28c97730 | 6285 | DRM_DEBUG_KMS("cursor off\n"); |
3f8bc370 | 6286 | addr = 0; |
05394f39 | 6287 | obj = NULL; |
5004417d | 6288 | mutex_lock(&dev->struct_mutex); |
3f8bc370 | 6289 | goto finish; |
79e53945 JB |
6290 | } |
6291 | ||
6292 | /* Currently we only support 64x64 cursors */ | |
6293 | if (width != 64 || height != 64) { | |
6294 | DRM_ERROR("we currently only support 64x64 cursors\n"); | |
6295 | return -EINVAL; | |
6296 | } | |
6297 | ||
05394f39 | 6298 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle)); |
c8725226 | 6299 | if (&obj->base == NULL) |
79e53945 JB |
6300 | return -ENOENT; |
6301 | ||
05394f39 | 6302 | if (obj->base.size < width * height * 4) { |
79e53945 | 6303 | DRM_ERROR("buffer is to small\n"); |
34b8686e DA |
6304 | ret = -ENOMEM; |
6305 | goto fail; | |
79e53945 JB |
6306 | } |
6307 | ||
71acb5eb | 6308 | /* we only need to pin inside GTT if cursor is non-phy */ |
7f9872e0 | 6309 | mutex_lock(&dev->struct_mutex); |
b295d1b6 | 6310 | if (!dev_priv->info->cursor_needs_physical) { |
d9e86c0e CW |
6311 | if (obj->tiling_mode) { |
6312 | DRM_ERROR("cursor cannot be tiled\n"); | |
6313 | ret = -EINVAL; | |
6314 | goto fail_locked; | |
6315 | } | |
6316 | ||
2da3b9b9 | 6317 | ret = i915_gem_object_pin_to_display_plane(obj, 0, NULL); |
e7b526bb CW |
6318 | if (ret) { |
6319 | DRM_ERROR("failed to move cursor bo into the GTT\n"); | |
2da3b9b9 | 6320 | goto fail_locked; |
e7b526bb CW |
6321 | } |
6322 | ||
d9e86c0e CW |
6323 | ret = i915_gem_object_put_fence(obj); |
6324 | if (ret) { | |
2da3b9b9 | 6325 | DRM_ERROR("failed to release fence for cursor"); |
d9e86c0e CW |
6326 | goto fail_unpin; |
6327 | } | |
6328 | ||
05394f39 | 6329 | addr = obj->gtt_offset; |
71acb5eb | 6330 | } else { |
6eeefaf3 | 6331 | int align = IS_I830(dev) ? 16 * 1024 : 256; |
05394f39 | 6332 | ret = i915_gem_attach_phys_object(dev, obj, |
6eeefaf3 CW |
6333 | (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1, |
6334 | align); | |
71acb5eb DA |
6335 | if (ret) { |
6336 | DRM_ERROR("failed to attach phys object\n"); | |
7f9872e0 | 6337 | goto fail_locked; |
71acb5eb | 6338 | } |
05394f39 | 6339 | addr = obj->phys_obj->handle->busaddr; |
3f8bc370 KH |
6340 | } |
6341 | ||
a6c45cf0 | 6342 | if (IS_GEN2(dev)) |
14b60391 JB |
6343 | I915_WRITE(CURSIZE, (height << 12) | width); |
6344 | ||
3f8bc370 | 6345 | finish: |
3f8bc370 | 6346 | if (intel_crtc->cursor_bo) { |
b295d1b6 | 6347 | if (dev_priv->info->cursor_needs_physical) { |
05394f39 | 6348 | if (intel_crtc->cursor_bo != obj) |
71acb5eb DA |
6349 | i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo); |
6350 | } else | |
6351 | i915_gem_object_unpin(intel_crtc->cursor_bo); | |
05394f39 | 6352 | drm_gem_object_unreference(&intel_crtc->cursor_bo->base); |
3f8bc370 | 6353 | } |
80824003 | 6354 | |
7f9872e0 | 6355 | mutex_unlock(&dev->struct_mutex); |
3f8bc370 KH |
6356 | |
6357 | intel_crtc->cursor_addr = addr; | |
05394f39 | 6358 | intel_crtc->cursor_bo = obj; |
cda4b7d3 CW |
6359 | intel_crtc->cursor_width = width; |
6360 | intel_crtc->cursor_height = height; | |
6361 | ||
6b383a7f | 6362 | intel_crtc_update_cursor(crtc, true); |
3f8bc370 | 6363 | |
79e53945 | 6364 | return 0; |
e7b526bb | 6365 | fail_unpin: |
05394f39 | 6366 | i915_gem_object_unpin(obj); |
7f9872e0 | 6367 | fail_locked: |
34b8686e | 6368 | mutex_unlock(&dev->struct_mutex); |
bc9025bd | 6369 | fail: |
05394f39 | 6370 | drm_gem_object_unreference_unlocked(&obj->base); |
34b8686e | 6371 | return ret; |
79e53945 JB |
6372 | } |
6373 | ||
6374 | static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) | |
6375 | { | |
79e53945 | 6376 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 6377 | |
cda4b7d3 CW |
6378 | intel_crtc->cursor_x = x; |
6379 | intel_crtc->cursor_y = y; | |
652c393a | 6380 | |
6b383a7f | 6381 | intel_crtc_update_cursor(crtc, true); |
79e53945 JB |
6382 | |
6383 | return 0; | |
6384 | } | |
6385 | ||
6386 | /** Sets the color ramps on behalf of RandR */ | |
6387 | void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, | |
6388 | u16 blue, int regno) | |
6389 | { | |
6390 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6391 | ||
6392 | intel_crtc->lut_r[regno] = red >> 8; | |
6393 | intel_crtc->lut_g[regno] = green >> 8; | |
6394 | intel_crtc->lut_b[regno] = blue >> 8; | |
6395 | } | |
6396 | ||
b8c00ac5 DA |
6397 | void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, |
6398 | u16 *blue, int regno) | |
6399 | { | |
6400 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6401 | ||
6402 | *red = intel_crtc->lut_r[regno] << 8; | |
6403 | *green = intel_crtc->lut_g[regno] << 8; | |
6404 | *blue = intel_crtc->lut_b[regno] << 8; | |
6405 | } | |
6406 | ||
79e53945 | 6407 | static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, |
7203425a | 6408 | u16 *blue, uint32_t start, uint32_t size) |
79e53945 | 6409 | { |
7203425a | 6410 | int end = (start + size > 256) ? 256 : start + size, i; |
79e53945 | 6411 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 6412 | |
7203425a | 6413 | for (i = start; i < end; i++) { |
79e53945 JB |
6414 | intel_crtc->lut_r[i] = red[i] >> 8; |
6415 | intel_crtc->lut_g[i] = green[i] >> 8; | |
6416 | intel_crtc->lut_b[i] = blue[i] >> 8; | |
6417 | } | |
6418 | ||
6419 | intel_crtc_load_lut(crtc); | |
6420 | } | |
6421 | ||
6422 | /** | |
6423 | * Get a pipe with a simple mode set on it for doing load-based monitor | |
6424 | * detection. | |
6425 | * | |
6426 | * It will be up to the load-detect code to adjust the pipe as appropriate for | |
c751ce4f | 6427 | * its requirements. The pipe will be connected to no other encoders. |
79e53945 | 6428 | * |
c751ce4f | 6429 | * Currently this code will only succeed if there is a pipe with no encoders |
79e53945 JB |
6430 | * configured for it. In the future, it could choose to temporarily disable |
6431 | * some outputs to free up a pipe for its use. | |
6432 | * | |
6433 | * \return crtc, or NULL if no pipes are available. | |
6434 | */ | |
6435 | ||
6436 | /* VESA 640x480x72Hz mode to set on the pipe */ | |
6437 | static struct drm_display_mode load_detect_mode = { | |
6438 | DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, | |
6439 | 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), | |
6440 | }; | |
6441 | ||
d2dff872 CW |
6442 | static struct drm_framebuffer * |
6443 | intel_framebuffer_create(struct drm_device *dev, | |
308e5bcb | 6444 | struct drm_mode_fb_cmd2 *mode_cmd, |
d2dff872 CW |
6445 | struct drm_i915_gem_object *obj) |
6446 | { | |
6447 | struct intel_framebuffer *intel_fb; | |
6448 | int ret; | |
6449 | ||
6450 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); | |
6451 | if (!intel_fb) { | |
6452 | drm_gem_object_unreference_unlocked(&obj->base); | |
6453 | return ERR_PTR(-ENOMEM); | |
6454 | } | |
6455 | ||
6456 | ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj); | |
6457 | if (ret) { | |
6458 | drm_gem_object_unreference_unlocked(&obj->base); | |
6459 | kfree(intel_fb); | |
6460 | return ERR_PTR(ret); | |
6461 | } | |
6462 | ||
6463 | return &intel_fb->base; | |
6464 | } | |
6465 | ||
6466 | static u32 | |
6467 | intel_framebuffer_pitch_for_width(int width, int bpp) | |
6468 | { | |
6469 | u32 pitch = DIV_ROUND_UP(width * bpp, 8); | |
6470 | return ALIGN(pitch, 64); | |
6471 | } | |
6472 | ||
6473 | static u32 | |
6474 | intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp) | |
6475 | { | |
6476 | u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp); | |
6477 | return ALIGN(pitch * mode->vdisplay, PAGE_SIZE); | |
6478 | } | |
6479 | ||
6480 | static struct drm_framebuffer * | |
6481 | intel_framebuffer_create_for_mode(struct drm_device *dev, | |
6482 | struct drm_display_mode *mode, | |
6483 | int depth, int bpp) | |
6484 | { | |
6485 | struct drm_i915_gem_object *obj; | |
0fed39bd | 6486 | struct drm_mode_fb_cmd2 mode_cmd = { 0 }; |
d2dff872 CW |
6487 | |
6488 | obj = i915_gem_alloc_object(dev, | |
6489 | intel_framebuffer_size_for_mode(mode, bpp)); | |
6490 | if (obj == NULL) | |
6491 | return ERR_PTR(-ENOMEM); | |
6492 | ||
6493 | mode_cmd.width = mode->hdisplay; | |
6494 | mode_cmd.height = mode->vdisplay; | |
308e5bcb JB |
6495 | mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width, |
6496 | bpp); | |
5ca0c34a | 6497 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); |
d2dff872 CW |
6498 | |
6499 | return intel_framebuffer_create(dev, &mode_cmd, obj); | |
6500 | } | |
6501 | ||
6502 | static struct drm_framebuffer * | |
6503 | mode_fits_in_fbdev(struct drm_device *dev, | |
6504 | struct drm_display_mode *mode) | |
6505 | { | |
6506 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6507 | struct drm_i915_gem_object *obj; | |
6508 | struct drm_framebuffer *fb; | |
6509 | ||
6510 | if (dev_priv->fbdev == NULL) | |
6511 | return NULL; | |
6512 | ||
6513 | obj = dev_priv->fbdev->ifb.obj; | |
6514 | if (obj == NULL) | |
6515 | return NULL; | |
6516 | ||
6517 | fb = &dev_priv->fbdev->ifb.base; | |
01f2c773 VS |
6518 | if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay, |
6519 | fb->bits_per_pixel)) | |
d2dff872 CW |
6520 | return NULL; |
6521 | ||
01f2c773 | 6522 | if (obj->base.size < mode->vdisplay * fb->pitches[0]) |
d2dff872 CW |
6523 | return NULL; |
6524 | ||
6525 | return fb; | |
6526 | } | |
6527 | ||
d2434ab7 | 6528 | bool intel_get_load_detect_pipe(struct drm_connector *connector, |
7173188d | 6529 | struct drm_display_mode *mode, |
8261b191 | 6530 | struct intel_load_detect_pipe *old) |
79e53945 JB |
6531 | { |
6532 | struct intel_crtc *intel_crtc; | |
d2434ab7 DV |
6533 | struct intel_encoder *intel_encoder = |
6534 | intel_attached_encoder(connector); | |
79e53945 | 6535 | struct drm_crtc *possible_crtc; |
4ef69c7a | 6536 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 JB |
6537 | struct drm_crtc *crtc = NULL; |
6538 | struct drm_device *dev = encoder->dev; | |
94352cf9 | 6539 | struct drm_framebuffer *fb; |
79e53945 JB |
6540 | int i = -1; |
6541 | ||
d2dff872 CW |
6542 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
6543 | connector->base.id, drm_get_connector_name(connector), | |
6544 | encoder->base.id, drm_get_encoder_name(encoder)); | |
6545 | ||
79e53945 JB |
6546 | /* |
6547 | * Algorithm gets a little messy: | |
7a5e4805 | 6548 | * |
79e53945 JB |
6549 | * - if the connector already has an assigned crtc, use it (but make |
6550 | * sure it's on first) | |
7a5e4805 | 6551 | * |
79e53945 JB |
6552 | * - try to find the first unused crtc that can drive this connector, |
6553 | * and use that if we find one | |
79e53945 JB |
6554 | */ |
6555 | ||
6556 | /* See if we already have a CRTC for this connector */ | |
6557 | if (encoder->crtc) { | |
6558 | crtc = encoder->crtc; | |
8261b191 | 6559 | |
24218aac | 6560 | old->dpms_mode = connector->dpms; |
8261b191 CW |
6561 | old->load_detect_temp = false; |
6562 | ||
6563 | /* Make sure the crtc and connector are running */ | |
24218aac DV |
6564 | if (connector->dpms != DRM_MODE_DPMS_ON) |
6565 | connector->funcs->dpms(connector, DRM_MODE_DPMS_ON); | |
8261b191 | 6566 | |
7173188d | 6567 | return true; |
79e53945 JB |
6568 | } |
6569 | ||
6570 | /* Find an unused one (if possible) */ | |
6571 | list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) { | |
6572 | i++; | |
6573 | if (!(encoder->possible_crtcs & (1 << i))) | |
6574 | continue; | |
6575 | if (!possible_crtc->enabled) { | |
6576 | crtc = possible_crtc; | |
6577 | break; | |
6578 | } | |
79e53945 JB |
6579 | } |
6580 | ||
6581 | /* | |
6582 | * If we didn't find an unused CRTC, don't use any. | |
6583 | */ | |
6584 | if (!crtc) { | |
7173188d CW |
6585 | DRM_DEBUG_KMS("no pipe available for load-detect\n"); |
6586 | return false; | |
79e53945 JB |
6587 | } |
6588 | ||
fc303101 DV |
6589 | intel_encoder->new_crtc = to_intel_crtc(crtc); |
6590 | to_intel_connector(connector)->new_encoder = intel_encoder; | |
79e53945 JB |
6591 | |
6592 | intel_crtc = to_intel_crtc(crtc); | |
24218aac | 6593 | old->dpms_mode = connector->dpms; |
8261b191 | 6594 | old->load_detect_temp = true; |
d2dff872 | 6595 | old->release_fb = NULL; |
79e53945 | 6596 | |
6492711d CW |
6597 | if (!mode) |
6598 | mode = &load_detect_mode; | |
79e53945 | 6599 | |
d2dff872 CW |
6600 | /* We need a framebuffer large enough to accommodate all accesses |
6601 | * that the plane may generate whilst we perform load detection. | |
6602 | * We can not rely on the fbcon either being present (we get called | |
6603 | * during its initialisation to detect all boot displays, or it may | |
6604 | * not even exist) or that it is large enough to satisfy the | |
6605 | * requested mode. | |
6606 | */ | |
94352cf9 DV |
6607 | fb = mode_fits_in_fbdev(dev, mode); |
6608 | if (fb == NULL) { | |
d2dff872 | 6609 | DRM_DEBUG_KMS("creating tmp fb for load-detection\n"); |
94352cf9 DV |
6610 | fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32); |
6611 | old->release_fb = fb; | |
d2dff872 CW |
6612 | } else |
6613 | DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n"); | |
94352cf9 | 6614 | if (IS_ERR(fb)) { |
d2dff872 | 6615 | DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n"); |
0e8b3d3e | 6616 | return false; |
79e53945 | 6617 | } |
79e53945 | 6618 | |
94352cf9 | 6619 | if (!intel_set_mode(crtc, mode, 0, 0, fb)) { |
6492711d | 6620 | DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n"); |
d2dff872 CW |
6621 | if (old->release_fb) |
6622 | old->release_fb->funcs->destroy(old->release_fb); | |
0e8b3d3e | 6623 | return false; |
79e53945 | 6624 | } |
7173188d | 6625 | |
79e53945 | 6626 | /* let the connector get through one full cycle before testing */ |
9d0498a2 | 6627 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
7173188d | 6628 | return true; |
79e53945 JB |
6629 | } |
6630 | ||
d2434ab7 | 6631 | void intel_release_load_detect_pipe(struct drm_connector *connector, |
8261b191 | 6632 | struct intel_load_detect_pipe *old) |
79e53945 | 6633 | { |
d2434ab7 DV |
6634 | struct intel_encoder *intel_encoder = |
6635 | intel_attached_encoder(connector); | |
4ef69c7a | 6636 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 | 6637 | |
d2dff872 CW |
6638 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
6639 | connector->base.id, drm_get_connector_name(connector), | |
6640 | encoder->base.id, drm_get_encoder_name(encoder)); | |
6641 | ||
8261b191 | 6642 | if (old->load_detect_temp) { |
fc303101 DV |
6643 | struct drm_crtc *crtc = encoder->crtc; |
6644 | ||
6645 | to_intel_connector(connector)->new_encoder = NULL; | |
6646 | intel_encoder->new_crtc = NULL; | |
6647 | intel_set_mode(crtc, NULL, 0, 0, NULL); | |
d2dff872 CW |
6648 | |
6649 | if (old->release_fb) | |
6650 | old->release_fb->funcs->destroy(old->release_fb); | |
6651 | ||
0622a53c | 6652 | return; |
79e53945 JB |
6653 | } |
6654 | ||
c751ce4f | 6655 | /* Switch crtc and encoder back off if necessary */ |
24218aac DV |
6656 | if (old->dpms_mode != DRM_MODE_DPMS_ON) |
6657 | connector->funcs->dpms(connector, old->dpms_mode); | |
79e53945 JB |
6658 | } |
6659 | ||
6660 | /* Returns the clock of the currently programmed mode of the given pipe. */ | |
6661 | static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc) | |
6662 | { | |
6663 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6664 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6665 | int pipe = intel_crtc->pipe; | |
548f245b | 6666 | u32 dpll = I915_READ(DPLL(pipe)); |
79e53945 JB |
6667 | u32 fp; |
6668 | intel_clock_t clock; | |
6669 | ||
6670 | if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) | |
39adb7a5 | 6671 | fp = I915_READ(FP0(pipe)); |
79e53945 | 6672 | else |
39adb7a5 | 6673 | fp = I915_READ(FP1(pipe)); |
79e53945 JB |
6674 | |
6675 | clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; | |
f2b115e6 AJ |
6676 | if (IS_PINEVIEW(dev)) { |
6677 | clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; | |
6678 | clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
2177832f SL |
6679 | } else { |
6680 | clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; | |
6681 | clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
6682 | } | |
6683 | ||
a6c45cf0 | 6684 | if (!IS_GEN2(dev)) { |
f2b115e6 AJ |
6685 | if (IS_PINEVIEW(dev)) |
6686 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >> | |
6687 | DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW); | |
2177832f SL |
6688 | else |
6689 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> | |
79e53945 JB |
6690 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
6691 | ||
6692 | switch (dpll & DPLL_MODE_MASK) { | |
6693 | case DPLLB_MODE_DAC_SERIAL: | |
6694 | clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? | |
6695 | 5 : 10; | |
6696 | break; | |
6697 | case DPLLB_MODE_LVDS: | |
6698 | clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? | |
6699 | 7 : 14; | |
6700 | break; | |
6701 | default: | |
28c97730 | 6702 | DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed " |
79e53945 JB |
6703 | "mode\n", (int)(dpll & DPLL_MODE_MASK)); |
6704 | return 0; | |
6705 | } | |
6706 | ||
6707 | /* XXX: Handle the 100Mhz refclk */ | |
2177832f | 6708 | intel_clock(dev, 96000, &clock); |
79e53945 JB |
6709 | } else { |
6710 | bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN); | |
6711 | ||
6712 | if (is_lvds) { | |
6713 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> | |
6714 | DPLL_FPA01_P1_POST_DIV_SHIFT); | |
6715 | clock.p2 = 14; | |
6716 | ||
6717 | if ((dpll & PLL_REF_INPUT_MASK) == | |
6718 | PLLB_REF_INPUT_SPREADSPECTRUMIN) { | |
6719 | /* XXX: might not be 66MHz */ | |
2177832f | 6720 | intel_clock(dev, 66000, &clock); |
79e53945 | 6721 | } else |
2177832f | 6722 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
6723 | } else { |
6724 | if (dpll & PLL_P1_DIVIDE_BY_TWO) | |
6725 | clock.p1 = 2; | |
6726 | else { | |
6727 | clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> | |
6728 | DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; | |
6729 | } | |
6730 | if (dpll & PLL_P2_DIVIDE_BY_4) | |
6731 | clock.p2 = 4; | |
6732 | else | |
6733 | clock.p2 = 2; | |
6734 | ||
2177832f | 6735 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
6736 | } |
6737 | } | |
6738 | ||
6739 | /* XXX: It would be nice to validate the clocks, but we can't reuse | |
6740 | * i830PllIsValid() because it relies on the xf86_config connector | |
6741 | * configuration being accurate, which it isn't necessarily. | |
6742 | */ | |
6743 | ||
6744 | return clock.dot; | |
6745 | } | |
6746 | ||
6747 | /** Returns the currently programmed mode of the given pipe. */ | |
6748 | struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, | |
6749 | struct drm_crtc *crtc) | |
6750 | { | |
548f245b | 6751 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 | 6752 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
fe2b8f9d | 6753 | enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder; |
79e53945 | 6754 | struct drm_display_mode *mode; |
fe2b8f9d PZ |
6755 | int htot = I915_READ(HTOTAL(cpu_transcoder)); |
6756 | int hsync = I915_READ(HSYNC(cpu_transcoder)); | |
6757 | int vtot = I915_READ(VTOTAL(cpu_transcoder)); | |
6758 | int vsync = I915_READ(VSYNC(cpu_transcoder)); | |
79e53945 JB |
6759 | |
6760 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); | |
6761 | if (!mode) | |
6762 | return NULL; | |
6763 | ||
6764 | mode->clock = intel_crtc_clock_get(dev, crtc); | |
6765 | mode->hdisplay = (htot & 0xffff) + 1; | |
6766 | mode->htotal = ((htot & 0xffff0000) >> 16) + 1; | |
6767 | mode->hsync_start = (hsync & 0xffff) + 1; | |
6768 | mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; | |
6769 | mode->vdisplay = (vtot & 0xffff) + 1; | |
6770 | mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; | |
6771 | mode->vsync_start = (vsync & 0xffff) + 1; | |
6772 | mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; | |
6773 | ||
6774 | drm_mode_set_name(mode); | |
79e53945 JB |
6775 | |
6776 | return mode; | |
6777 | } | |
6778 | ||
3dec0095 | 6779 | static void intel_increase_pllclock(struct drm_crtc *crtc) |
652c393a JB |
6780 | { |
6781 | struct drm_device *dev = crtc->dev; | |
6782 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6783 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6784 | int pipe = intel_crtc->pipe; | |
dbdc6479 JB |
6785 | int dpll_reg = DPLL(pipe); |
6786 | int dpll; | |
652c393a | 6787 | |
bad720ff | 6788 | if (HAS_PCH_SPLIT(dev)) |
652c393a JB |
6789 | return; |
6790 | ||
6791 | if (!dev_priv->lvds_downclock_avail) | |
6792 | return; | |
6793 | ||
dbdc6479 | 6794 | dpll = I915_READ(dpll_reg); |
652c393a | 6795 | if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) { |
44d98a61 | 6796 | DRM_DEBUG_DRIVER("upclocking LVDS\n"); |
652c393a | 6797 | |
8ac5a6d5 | 6798 | assert_panel_unlocked(dev_priv, pipe); |
652c393a JB |
6799 | |
6800 | dpll &= ~DISPLAY_RATE_SELECT_FPA1; | |
6801 | I915_WRITE(dpll_reg, dpll); | |
9d0498a2 | 6802 | intel_wait_for_vblank(dev, pipe); |
dbdc6479 | 6803 | |
652c393a JB |
6804 | dpll = I915_READ(dpll_reg); |
6805 | if (dpll & DISPLAY_RATE_SELECT_FPA1) | |
44d98a61 | 6806 | DRM_DEBUG_DRIVER("failed to upclock LVDS!\n"); |
652c393a | 6807 | } |
652c393a JB |
6808 | } |
6809 | ||
6810 | static void intel_decrease_pllclock(struct drm_crtc *crtc) | |
6811 | { | |
6812 | struct drm_device *dev = crtc->dev; | |
6813 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6814 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
652c393a | 6815 | |
bad720ff | 6816 | if (HAS_PCH_SPLIT(dev)) |
652c393a JB |
6817 | return; |
6818 | ||
6819 | if (!dev_priv->lvds_downclock_avail) | |
6820 | return; | |
6821 | ||
6822 | /* | |
6823 | * Since this is called by a timer, we should never get here in | |
6824 | * the manual case. | |
6825 | */ | |
6826 | if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) { | |
dc257cf1 DV |
6827 | int pipe = intel_crtc->pipe; |
6828 | int dpll_reg = DPLL(pipe); | |
6829 | int dpll; | |
f6e5b160 | 6830 | |
44d98a61 | 6831 | DRM_DEBUG_DRIVER("downclocking LVDS\n"); |
652c393a | 6832 | |
8ac5a6d5 | 6833 | assert_panel_unlocked(dev_priv, pipe); |
652c393a | 6834 | |
dc257cf1 | 6835 | dpll = I915_READ(dpll_reg); |
652c393a JB |
6836 | dpll |= DISPLAY_RATE_SELECT_FPA1; |
6837 | I915_WRITE(dpll_reg, dpll); | |
9d0498a2 | 6838 | intel_wait_for_vblank(dev, pipe); |
652c393a JB |
6839 | dpll = I915_READ(dpll_reg); |
6840 | if (!(dpll & DISPLAY_RATE_SELECT_FPA1)) | |
44d98a61 | 6841 | DRM_DEBUG_DRIVER("failed to downclock LVDS!\n"); |
652c393a JB |
6842 | } |
6843 | ||
6844 | } | |
6845 | ||
f047e395 CW |
6846 | void intel_mark_busy(struct drm_device *dev) |
6847 | { | |
f047e395 CW |
6848 | i915_update_gfx_val(dev->dev_private); |
6849 | } | |
6850 | ||
6851 | void intel_mark_idle(struct drm_device *dev) | |
652c393a | 6852 | { |
f047e395 CW |
6853 | } |
6854 | ||
6855 | void intel_mark_fb_busy(struct drm_i915_gem_object *obj) | |
6856 | { | |
6857 | struct drm_device *dev = obj->base.dev; | |
652c393a | 6858 | struct drm_crtc *crtc; |
652c393a JB |
6859 | |
6860 | if (!i915_powersave) | |
6861 | return; | |
6862 | ||
652c393a | 6863 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
652c393a JB |
6864 | if (!crtc->fb) |
6865 | continue; | |
6866 | ||
f047e395 CW |
6867 | if (to_intel_framebuffer(crtc->fb)->obj == obj) |
6868 | intel_increase_pllclock(crtc); | |
652c393a | 6869 | } |
652c393a JB |
6870 | } |
6871 | ||
f047e395 | 6872 | void intel_mark_fb_idle(struct drm_i915_gem_object *obj) |
652c393a | 6873 | { |
f047e395 CW |
6874 | struct drm_device *dev = obj->base.dev; |
6875 | struct drm_crtc *crtc; | |
652c393a | 6876 | |
f047e395 | 6877 | if (!i915_powersave) |
acb87dfb CW |
6878 | return; |
6879 | ||
652c393a JB |
6880 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
6881 | if (!crtc->fb) | |
6882 | continue; | |
6883 | ||
f047e395 CW |
6884 | if (to_intel_framebuffer(crtc->fb)->obj == obj) |
6885 | intel_decrease_pllclock(crtc); | |
652c393a JB |
6886 | } |
6887 | } | |
6888 | ||
79e53945 JB |
6889 | static void intel_crtc_destroy(struct drm_crtc *crtc) |
6890 | { | |
6891 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
67e77c5a DV |
6892 | struct drm_device *dev = crtc->dev; |
6893 | struct intel_unpin_work *work; | |
6894 | unsigned long flags; | |
6895 | ||
6896 | spin_lock_irqsave(&dev->event_lock, flags); | |
6897 | work = intel_crtc->unpin_work; | |
6898 | intel_crtc->unpin_work = NULL; | |
6899 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6900 | ||
6901 | if (work) { | |
6902 | cancel_work_sync(&work->work); | |
6903 | kfree(work); | |
6904 | } | |
79e53945 JB |
6905 | |
6906 | drm_crtc_cleanup(crtc); | |
67e77c5a | 6907 | |
79e53945 JB |
6908 | kfree(intel_crtc); |
6909 | } | |
6910 | ||
6b95a207 KH |
6911 | static void intel_unpin_work_fn(struct work_struct *__work) |
6912 | { | |
6913 | struct intel_unpin_work *work = | |
6914 | container_of(__work, struct intel_unpin_work, work); | |
b4a98e57 | 6915 | struct drm_device *dev = work->crtc->dev; |
6b95a207 | 6916 | |
b4a98e57 | 6917 | mutex_lock(&dev->struct_mutex); |
1690e1eb | 6918 | intel_unpin_fb_obj(work->old_fb_obj); |
05394f39 CW |
6919 | drm_gem_object_unreference(&work->pending_flip_obj->base); |
6920 | drm_gem_object_unreference(&work->old_fb_obj->base); | |
d9e86c0e | 6921 | |
b4a98e57 CW |
6922 | intel_update_fbc(dev); |
6923 | mutex_unlock(&dev->struct_mutex); | |
6924 | ||
6925 | BUG_ON(atomic_read(&to_intel_crtc(work->crtc)->unpin_work_count) == 0); | |
6926 | atomic_dec(&to_intel_crtc(work->crtc)->unpin_work_count); | |
6927 | ||
6b95a207 KH |
6928 | kfree(work); |
6929 | } | |
6930 | ||
1afe3e9d | 6931 | static void do_intel_finish_page_flip(struct drm_device *dev, |
49b14a5c | 6932 | struct drm_crtc *crtc) |
6b95a207 KH |
6933 | { |
6934 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6b95a207 KH |
6935 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6936 | struct intel_unpin_work *work; | |
05394f39 | 6937 | struct drm_i915_gem_object *obj; |
6b95a207 KH |
6938 | unsigned long flags; |
6939 | ||
6940 | /* Ignore early vblank irqs */ | |
6941 | if (intel_crtc == NULL) | |
6942 | return; | |
6943 | ||
6944 | spin_lock_irqsave(&dev->event_lock, flags); | |
6945 | work = intel_crtc->unpin_work; | |
6946 | if (work == NULL || !work->pending) { | |
6947 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6948 | return; | |
6949 | } | |
6950 | ||
6951 | intel_crtc->unpin_work = NULL; | |
6b95a207 | 6952 | |
45a066eb RC |
6953 | if (work->event) |
6954 | drm_send_vblank_event(dev, intel_crtc->pipe, work->event); | |
6b95a207 | 6955 | |
0af7e4df MK |
6956 | drm_vblank_put(dev, intel_crtc->pipe); |
6957 | ||
6b95a207 KH |
6958 | spin_unlock_irqrestore(&dev->event_lock, flags); |
6959 | ||
05394f39 | 6960 | obj = work->old_fb_obj; |
d9e86c0e | 6961 | |
5bb61643 | 6962 | wake_up(&dev_priv->pending_flip_queue); |
b4a98e57 CW |
6963 | |
6964 | queue_work(dev_priv->wq, &work->work); | |
e5510fac JB |
6965 | |
6966 | trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj); | |
6b95a207 KH |
6967 | } |
6968 | ||
1afe3e9d JB |
6969 | void intel_finish_page_flip(struct drm_device *dev, int pipe) |
6970 | { | |
6971 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6972 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
6973 | ||
49b14a5c | 6974 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
6975 | } |
6976 | ||
6977 | void intel_finish_page_flip_plane(struct drm_device *dev, int plane) | |
6978 | { | |
6979 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6980 | struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane]; | |
6981 | ||
49b14a5c | 6982 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
6983 | } |
6984 | ||
6b95a207 KH |
6985 | void intel_prepare_page_flip(struct drm_device *dev, int plane) |
6986 | { | |
6987 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6988 | struct intel_crtc *intel_crtc = | |
6989 | to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]); | |
6990 | unsigned long flags; | |
6991 | ||
6992 | spin_lock_irqsave(&dev->event_lock, flags); | |
de3f440f | 6993 | if (intel_crtc->unpin_work) { |
4e5359cd SF |
6994 | if ((++intel_crtc->unpin_work->pending) > 1) |
6995 | DRM_ERROR("Prepared flip multiple times\n"); | |
de3f440f JB |
6996 | } else { |
6997 | DRM_DEBUG_DRIVER("preparing flip with no unpin work?\n"); | |
6998 | } | |
6b95a207 KH |
6999 | spin_unlock_irqrestore(&dev->event_lock, flags); |
7000 | } | |
7001 | ||
8c9f3aaf JB |
7002 | static int intel_gen2_queue_flip(struct drm_device *dev, |
7003 | struct drm_crtc *crtc, | |
7004 | struct drm_framebuffer *fb, | |
7005 | struct drm_i915_gem_object *obj) | |
7006 | { | |
7007 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7008 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
8c9f3aaf | 7009 | u32 flip_mask; |
6d90c952 | 7010 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
7011 | int ret; |
7012 | ||
6d90c952 | 7013 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 7014 | if (ret) |
83d4092b | 7015 | goto err; |
8c9f3aaf | 7016 | |
6d90c952 | 7017 | ret = intel_ring_begin(ring, 6); |
8c9f3aaf | 7018 | if (ret) |
83d4092b | 7019 | goto err_unpin; |
8c9f3aaf JB |
7020 | |
7021 | /* Can't queue multiple flips, so wait for the previous | |
7022 | * one to finish before executing the next. | |
7023 | */ | |
7024 | if (intel_crtc->plane) | |
7025 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
7026 | else | |
7027 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
7028 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
7029 | intel_ring_emit(ring, MI_NOOP); | |
7030 | intel_ring_emit(ring, MI_DISPLAY_FLIP | | |
7031 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
7032 | intel_ring_emit(ring, fb->pitches[0]); | |
e506a0c6 | 7033 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
6d90c952 DV |
7034 | intel_ring_emit(ring, 0); /* aux display base address, unused */ |
7035 | intel_ring_advance(ring); | |
83d4092b CW |
7036 | return 0; |
7037 | ||
7038 | err_unpin: | |
7039 | intel_unpin_fb_obj(obj); | |
7040 | err: | |
8c9f3aaf JB |
7041 | return ret; |
7042 | } | |
7043 | ||
7044 | static int intel_gen3_queue_flip(struct drm_device *dev, | |
7045 | struct drm_crtc *crtc, | |
7046 | struct drm_framebuffer *fb, | |
7047 | struct drm_i915_gem_object *obj) | |
7048 | { | |
7049 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7050 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
8c9f3aaf | 7051 | u32 flip_mask; |
6d90c952 | 7052 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
7053 | int ret; |
7054 | ||
6d90c952 | 7055 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 7056 | if (ret) |
83d4092b | 7057 | goto err; |
8c9f3aaf | 7058 | |
6d90c952 | 7059 | ret = intel_ring_begin(ring, 6); |
8c9f3aaf | 7060 | if (ret) |
83d4092b | 7061 | goto err_unpin; |
8c9f3aaf JB |
7062 | |
7063 | if (intel_crtc->plane) | |
7064 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
7065 | else | |
7066 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
7067 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
7068 | intel_ring_emit(ring, MI_NOOP); | |
7069 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | | |
7070 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
7071 | intel_ring_emit(ring, fb->pitches[0]); | |
e506a0c6 | 7072 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
6d90c952 DV |
7073 | intel_ring_emit(ring, MI_NOOP); |
7074 | ||
7075 | intel_ring_advance(ring); | |
83d4092b CW |
7076 | return 0; |
7077 | ||
7078 | err_unpin: | |
7079 | intel_unpin_fb_obj(obj); | |
7080 | err: | |
8c9f3aaf JB |
7081 | return ret; |
7082 | } | |
7083 | ||
7084 | static int intel_gen4_queue_flip(struct drm_device *dev, | |
7085 | struct drm_crtc *crtc, | |
7086 | struct drm_framebuffer *fb, | |
7087 | struct drm_i915_gem_object *obj) | |
7088 | { | |
7089 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7090 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
7091 | uint32_t pf, pipesrc; | |
6d90c952 | 7092 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
7093 | int ret; |
7094 | ||
6d90c952 | 7095 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 7096 | if (ret) |
83d4092b | 7097 | goto err; |
8c9f3aaf | 7098 | |
6d90c952 | 7099 | ret = intel_ring_begin(ring, 4); |
8c9f3aaf | 7100 | if (ret) |
83d4092b | 7101 | goto err_unpin; |
8c9f3aaf JB |
7102 | |
7103 | /* i965+ uses the linear or tiled offsets from the | |
7104 | * Display Registers (which do not change across a page-flip) | |
7105 | * so we need only reprogram the base address. | |
7106 | */ | |
6d90c952 DV |
7107 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
7108 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
7109 | intel_ring_emit(ring, fb->pitches[0]); | |
c2c75131 DV |
7110 | intel_ring_emit(ring, |
7111 | (obj->gtt_offset + intel_crtc->dspaddr_offset) | | |
7112 | obj->tiling_mode); | |
8c9f3aaf JB |
7113 | |
7114 | /* XXX Enabling the panel-fitter across page-flip is so far | |
7115 | * untested on non-native modes, so ignore it for now. | |
7116 | * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE; | |
7117 | */ | |
7118 | pf = 0; | |
7119 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; | |
6d90c952 DV |
7120 | intel_ring_emit(ring, pf | pipesrc); |
7121 | intel_ring_advance(ring); | |
83d4092b CW |
7122 | return 0; |
7123 | ||
7124 | err_unpin: | |
7125 | intel_unpin_fb_obj(obj); | |
7126 | err: | |
8c9f3aaf JB |
7127 | return ret; |
7128 | } | |
7129 | ||
7130 | static int intel_gen6_queue_flip(struct drm_device *dev, | |
7131 | struct drm_crtc *crtc, | |
7132 | struct drm_framebuffer *fb, | |
7133 | struct drm_i915_gem_object *obj) | |
7134 | { | |
7135 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7136 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6d90c952 | 7137 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
7138 | uint32_t pf, pipesrc; |
7139 | int ret; | |
7140 | ||
6d90c952 | 7141 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 7142 | if (ret) |
83d4092b | 7143 | goto err; |
8c9f3aaf | 7144 | |
6d90c952 | 7145 | ret = intel_ring_begin(ring, 4); |
8c9f3aaf | 7146 | if (ret) |
83d4092b | 7147 | goto err_unpin; |
8c9f3aaf | 7148 | |
6d90c952 DV |
7149 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
7150 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
7151 | intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode); | |
c2c75131 | 7152 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
8c9f3aaf | 7153 | |
dc257cf1 DV |
7154 | /* Contrary to the suggestions in the documentation, |
7155 | * "Enable Panel Fitter" does not seem to be required when page | |
7156 | * flipping with a non-native mode, and worse causes a normal | |
7157 | * modeset to fail. | |
7158 | * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE; | |
7159 | */ | |
7160 | pf = 0; | |
8c9f3aaf | 7161 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; |
6d90c952 DV |
7162 | intel_ring_emit(ring, pf | pipesrc); |
7163 | intel_ring_advance(ring); | |
83d4092b CW |
7164 | return 0; |
7165 | ||
7166 | err_unpin: | |
7167 | intel_unpin_fb_obj(obj); | |
7168 | err: | |
8c9f3aaf JB |
7169 | return ret; |
7170 | } | |
7171 | ||
7c9017e5 JB |
7172 | /* |
7173 | * On gen7 we currently use the blit ring because (in early silicon at least) | |
7174 | * the render ring doesn't give us interrpts for page flip completion, which | |
7175 | * means clients will hang after the first flip is queued. Fortunately the | |
7176 | * blit ring generates interrupts properly, so use it instead. | |
7177 | */ | |
7178 | static int intel_gen7_queue_flip(struct drm_device *dev, | |
7179 | struct drm_crtc *crtc, | |
7180 | struct drm_framebuffer *fb, | |
7181 | struct drm_i915_gem_object *obj) | |
7182 | { | |
7183 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7184 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
7185 | struct intel_ring_buffer *ring = &dev_priv->ring[BCS]; | |
cb05d8de | 7186 | uint32_t plane_bit = 0; |
7c9017e5 JB |
7187 | int ret; |
7188 | ||
7189 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); | |
7190 | if (ret) | |
83d4092b | 7191 | goto err; |
7c9017e5 | 7192 | |
cb05d8de DV |
7193 | switch(intel_crtc->plane) { |
7194 | case PLANE_A: | |
7195 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A; | |
7196 | break; | |
7197 | case PLANE_B: | |
7198 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B; | |
7199 | break; | |
7200 | case PLANE_C: | |
7201 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C; | |
7202 | break; | |
7203 | default: | |
7204 | WARN_ONCE(1, "unknown plane in flip command\n"); | |
7205 | ret = -ENODEV; | |
ab3951eb | 7206 | goto err_unpin; |
cb05d8de DV |
7207 | } |
7208 | ||
7c9017e5 JB |
7209 | ret = intel_ring_begin(ring, 4); |
7210 | if (ret) | |
83d4092b | 7211 | goto err_unpin; |
7c9017e5 | 7212 | |
cb05d8de | 7213 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit); |
01f2c773 | 7214 | intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode)); |
c2c75131 | 7215 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
7c9017e5 JB |
7216 | intel_ring_emit(ring, (MI_NOOP)); |
7217 | intel_ring_advance(ring); | |
83d4092b CW |
7218 | return 0; |
7219 | ||
7220 | err_unpin: | |
7221 | intel_unpin_fb_obj(obj); | |
7222 | err: | |
7c9017e5 JB |
7223 | return ret; |
7224 | } | |
7225 | ||
8c9f3aaf JB |
7226 | static int intel_default_queue_flip(struct drm_device *dev, |
7227 | struct drm_crtc *crtc, | |
7228 | struct drm_framebuffer *fb, | |
7229 | struct drm_i915_gem_object *obj) | |
7230 | { | |
7231 | return -ENODEV; | |
7232 | } | |
7233 | ||
6b95a207 KH |
7234 | static int intel_crtc_page_flip(struct drm_crtc *crtc, |
7235 | struct drm_framebuffer *fb, | |
7236 | struct drm_pending_vblank_event *event) | |
7237 | { | |
7238 | struct drm_device *dev = crtc->dev; | |
7239 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7240 | struct intel_framebuffer *intel_fb; | |
05394f39 | 7241 | struct drm_i915_gem_object *obj; |
6b95a207 KH |
7242 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
7243 | struct intel_unpin_work *work; | |
8c9f3aaf | 7244 | unsigned long flags; |
52e68630 | 7245 | int ret; |
6b95a207 | 7246 | |
e6a595d2 VS |
7247 | /* Can't change pixel format via MI display flips. */ |
7248 | if (fb->pixel_format != crtc->fb->pixel_format) | |
7249 | return -EINVAL; | |
7250 | ||
7251 | /* | |
7252 | * TILEOFF/LINOFF registers can't be changed via MI display flips. | |
7253 | * Note that pitch changes could also affect these register. | |
7254 | */ | |
7255 | if (INTEL_INFO(dev)->gen > 3 && | |
7256 | (fb->offsets[0] != crtc->fb->offsets[0] || | |
7257 | fb->pitches[0] != crtc->fb->pitches[0])) | |
7258 | return -EINVAL; | |
7259 | ||
6b95a207 KH |
7260 | work = kzalloc(sizeof *work, GFP_KERNEL); |
7261 | if (work == NULL) | |
7262 | return -ENOMEM; | |
7263 | ||
6b95a207 | 7264 | work->event = event; |
b4a98e57 | 7265 | work->crtc = crtc; |
6b95a207 | 7266 | intel_fb = to_intel_framebuffer(crtc->fb); |
b1b87f6b | 7267 | work->old_fb_obj = intel_fb->obj; |
6b95a207 KH |
7268 | INIT_WORK(&work->work, intel_unpin_work_fn); |
7269 | ||
7317c75e JB |
7270 | ret = drm_vblank_get(dev, intel_crtc->pipe); |
7271 | if (ret) | |
7272 | goto free_work; | |
7273 | ||
6b95a207 KH |
7274 | /* We borrow the event spin lock for protecting unpin_work */ |
7275 | spin_lock_irqsave(&dev->event_lock, flags); | |
7276 | if (intel_crtc->unpin_work) { | |
7277 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
7278 | kfree(work); | |
7317c75e | 7279 | drm_vblank_put(dev, intel_crtc->pipe); |
468f0b44 CW |
7280 | |
7281 | DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); | |
6b95a207 KH |
7282 | return -EBUSY; |
7283 | } | |
7284 | intel_crtc->unpin_work = work; | |
7285 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
7286 | ||
7287 | intel_fb = to_intel_framebuffer(fb); | |
7288 | obj = intel_fb->obj; | |
7289 | ||
b4a98e57 CW |
7290 | if (atomic_read(&intel_crtc->unpin_work_count) >= 2) |
7291 | flush_workqueue(dev_priv->wq); | |
7292 | ||
79158103 CW |
7293 | ret = i915_mutex_lock_interruptible(dev); |
7294 | if (ret) | |
7295 | goto cleanup; | |
6b95a207 | 7296 | |
75dfca80 | 7297 | /* Reference the objects for the scheduled work. */ |
05394f39 CW |
7298 | drm_gem_object_reference(&work->old_fb_obj->base); |
7299 | drm_gem_object_reference(&obj->base); | |
6b95a207 KH |
7300 | |
7301 | crtc->fb = fb; | |
96b099fd | 7302 | |
e1f99ce6 | 7303 | work->pending_flip_obj = obj; |
e1f99ce6 | 7304 | |
4e5359cd SF |
7305 | work->enable_stall_check = true; |
7306 | ||
b4a98e57 | 7307 | atomic_inc(&intel_crtc->unpin_work_count); |
e1f99ce6 | 7308 | |
8c9f3aaf JB |
7309 | ret = dev_priv->display.queue_flip(dev, crtc, fb, obj); |
7310 | if (ret) | |
7311 | goto cleanup_pending; | |
6b95a207 | 7312 | |
7782de3b | 7313 | intel_disable_fbc(dev); |
f047e395 | 7314 | intel_mark_fb_busy(obj); |
6b95a207 KH |
7315 | mutex_unlock(&dev->struct_mutex); |
7316 | ||
e5510fac JB |
7317 | trace_i915_flip_request(intel_crtc->plane, obj); |
7318 | ||
6b95a207 | 7319 | return 0; |
96b099fd | 7320 | |
8c9f3aaf | 7321 | cleanup_pending: |
b4a98e57 | 7322 | atomic_dec(&intel_crtc->unpin_work_count); |
05394f39 CW |
7323 | drm_gem_object_unreference(&work->old_fb_obj->base); |
7324 | drm_gem_object_unreference(&obj->base); | |
96b099fd CW |
7325 | mutex_unlock(&dev->struct_mutex); |
7326 | ||
79158103 | 7327 | cleanup: |
96b099fd CW |
7328 | spin_lock_irqsave(&dev->event_lock, flags); |
7329 | intel_crtc->unpin_work = NULL; | |
7330 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
7331 | ||
7317c75e JB |
7332 | drm_vblank_put(dev, intel_crtc->pipe); |
7333 | free_work: | |
96b099fd CW |
7334 | kfree(work); |
7335 | ||
7336 | return ret; | |
6b95a207 KH |
7337 | } |
7338 | ||
f6e5b160 | 7339 | static struct drm_crtc_helper_funcs intel_helper_funcs = { |
f6e5b160 CW |
7340 | .mode_set_base_atomic = intel_pipe_set_base_atomic, |
7341 | .load_lut = intel_crtc_load_lut, | |
976f8a20 | 7342 | .disable = intel_crtc_noop, |
f6e5b160 CW |
7343 | }; |
7344 | ||
6ed0f796 | 7345 | bool intel_encoder_check_is_cloned(struct intel_encoder *encoder) |
47f1c6c9 | 7346 | { |
6ed0f796 DV |
7347 | struct intel_encoder *other_encoder; |
7348 | struct drm_crtc *crtc = &encoder->new_crtc->base; | |
47f1c6c9 | 7349 | |
6ed0f796 DV |
7350 | if (WARN_ON(!crtc)) |
7351 | return false; | |
7352 | ||
7353 | list_for_each_entry(other_encoder, | |
7354 | &crtc->dev->mode_config.encoder_list, | |
7355 | base.head) { | |
7356 | ||
7357 | if (&other_encoder->new_crtc->base != crtc || | |
7358 | encoder == other_encoder) | |
7359 | continue; | |
7360 | else | |
7361 | return true; | |
f47166d2 CW |
7362 | } |
7363 | ||
6ed0f796 DV |
7364 | return false; |
7365 | } | |
47f1c6c9 | 7366 | |
50f56119 DV |
7367 | static bool intel_encoder_crtc_ok(struct drm_encoder *encoder, |
7368 | struct drm_crtc *crtc) | |
7369 | { | |
7370 | struct drm_device *dev; | |
7371 | struct drm_crtc *tmp; | |
7372 | int crtc_mask = 1; | |
47f1c6c9 | 7373 | |
50f56119 | 7374 | WARN(!crtc, "checking null crtc?\n"); |
47f1c6c9 | 7375 | |
50f56119 | 7376 | dev = crtc->dev; |
47f1c6c9 | 7377 | |
50f56119 DV |
7378 | list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) { |
7379 | if (tmp == crtc) | |
7380 | break; | |
7381 | crtc_mask <<= 1; | |
7382 | } | |
47f1c6c9 | 7383 | |
50f56119 DV |
7384 | if (encoder->possible_crtcs & crtc_mask) |
7385 | return true; | |
7386 | return false; | |
47f1c6c9 | 7387 | } |
79e53945 | 7388 | |
9a935856 DV |
7389 | /** |
7390 | * intel_modeset_update_staged_output_state | |
7391 | * | |
7392 | * Updates the staged output configuration state, e.g. after we've read out the | |
7393 | * current hw state. | |
7394 | */ | |
7395 | static void intel_modeset_update_staged_output_state(struct drm_device *dev) | |
f6e5b160 | 7396 | { |
9a935856 DV |
7397 | struct intel_encoder *encoder; |
7398 | struct intel_connector *connector; | |
f6e5b160 | 7399 | |
9a935856 DV |
7400 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
7401 | base.head) { | |
7402 | connector->new_encoder = | |
7403 | to_intel_encoder(connector->base.encoder); | |
7404 | } | |
f6e5b160 | 7405 | |
9a935856 DV |
7406 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
7407 | base.head) { | |
7408 | encoder->new_crtc = | |
7409 | to_intel_crtc(encoder->base.crtc); | |
7410 | } | |
f6e5b160 CW |
7411 | } |
7412 | ||
9a935856 DV |
7413 | /** |
7414 | * intel_modeset_commit_output_state | |
7415 | * | |
7416 | * This function copies the stage display pipe configuration to the real one. | |
7417 | */ | |
7418 | static void intel_modeset_commit_output_state(struct drm_device *dev) | |
7419 | { | |
7420 | struct intel_encoder *encoder; | |
7421 | struct intel_connector *connector; | |
f6e5b160 | 7422 | |
9a935856 DV |
7423 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
7424 | base.head) { | |
7425 | connector->base.encoder = &connector->new_encoder->base; | |
7426 | } | |
f6e5b160 | 7427 | |
9a935856 DV |
7428 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
7429 | base.head) { | |
7430 | encoder->base.crtc = &encoder->new_crtc->base; | |
7431 | } | |
7432 | } | |
7433 | ||
7758a113 DV |
7434 | static struct drm_display_mode * |
7435 | intel_modeset_adjusted_mode(struct drm_crtc *crtc, | |
7436 | struct drm_display_mode *mode) | |
ee7b9f93 | 7437 | { |
7758a113 DV |
7438 | struct drm_device *dev = crtc->dev; |
7439 | struct drm_display_mode *adjusted_mode; | |
7440 | struct drm_encoder_helper_funcs *encoder_funcs; | |
7441 | struct intel_encoder *encoder; | |
ee7b9f93 | 7442 | |
7758a113 DV |
7443 | adjusted_mode = drm_mode_duplicate(dev, mode); |
7444 | if (!adjusted_mode) | |
7445 | return ERR_PTR(-ENOMEM); | |
7446 | ||
7447 | /* Pass our mode to the connectors and the CRTC to give them a chance to | |
7448 | * adjust it according to limitations or connector properties, and also | |
7449 | * a chance to reject the mode entirely. | |
47f1c6c9 | 7450 | */ |
7758a113 DV |
7451 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
7452 | base.head) { | |
47f1c6c9 | 7453 | |
7758a113 DV |
7454 | if (&encoder->new_crtc->base != crtc) |
7455 | continue; | |
7456 | encoder_funcs = encoder->base.helper_private; | |
7457 | if (!(encoder_funcs->mode_fixup(&encoder->base, mode, | |
7458 | adjusted_mode))) { | |
7459 | DRM_DEBUG_KMS("Encoder fixup failed\n"); | |
7460 | goto fail; | |
7461 | } | |
ee7b9f93 | 7462 | } |
47f1c6c9 | 7463 | |
7758a113 DV |
7464 | if (!(intel_crtc_mode_fixup(crtc, mode, adjusted_mode))) { |
7465 | DRM_DEBUG_KMS("CRTC fixup failed\n"); | |
7466 | goto fail; | |
ee7b9f93 | 7467 | } |
7758a113 | 7468 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
47f1c6c9 | 7469 | |
7758a113 DV |
7470 | return adjusted_mode; |
7471 | fail: | |
7472 | drm_mode_destroy(dev, adjusted_mode); | |
7473 | return ERR_PTR(-EINVAL); | |
ee7b9f93 | 7474 | } |
47f1c6c9 | 7475 | |
e2e1ed41 DV |
7476 | /* Computes which crtcs are affected and sets the relevant bits in the mask. For |
7477 | * simplicity we use the crtc's pipe number (because it's easier to obtain). */ | |
7478 | static void | |
7479 | intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes, | |
7480 | unsigned *prepare_pipes, unsigned *disable_pipes) | |
79e53945 JB |
7481 | { |
7482 | struct intel_crtc *intel_crtc; | |
e2e1ed41 DV |
7483 | struct drm_device *dev = crtc->dev; |
7484 | struct intel_encoder *encoder; | |
7485 | struct intel_connector *connector; | |
7486 | struct drm_crtc *tmp_crtc; | |
79e53945 | 7487 | |
e2e1ed41 | 7488 | *disable_pipes = *modeset_pipes = *prepare_pipes = 0; |
79e53945 | 7489 | |
e2e1ed41 DV |
7490 | /* Check which crtcs have changed outputs connected to them, these need |
7491 | * to be part of the prepare_pipes mask. We don't (yet) support global | |
7492 | * modeset across multiple crtcs, so modeset_pipes will only have one | |
7493 | * bit set at most. */ | |
7494 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
7495 | base.head) { | |
7496 | if (connector->base.encoder == &connector->new_encoder->base) | |
7497 | continue; | |
79e53945 | 7498 | |
e2e1ed41 DV |
7499 | if (connector->base.encoder) { |
7500 | tmp_crtc = connector->base.encoder->crtc; | |
7501 | ||
7502 | *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe; | |
7503 | } | |
7504 | ||
7505 | if (connector->new_encoder) | |
7506 | *prepare_pipes |= | |
7507 | 1 << connector->new_encoder->new_crtc->pipe; | |
79e53945 JB |
7508 | } |
7509 | ||
e2e1ed41 DV |
7510 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
7511 | base.head) { | |
7512 | if (encoder->base.crtc == &encoder->new_crtc->base) | |
7513 | continue; | |
7514 | ||
7515 | if (encoder->base.crtc) { | |
7516 | tmp_crtc = encoder->base.crtc; | |
7517 | ||
7518 | *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe; | |
7519 | } | |
7520 | ||
7521 | if (encoder->new_crtc) | |
7522 | *prepare_pipes |= 1 << encoder->new_crtc->pipe; | |
80824003 JB |
7523 | } |
7524 | ||
e2e1ed41 DV |
7525 | /* Check for any pipes that will be fully disabled ... */ |
7526 | list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, | |
7527 | base.head) { | |
7528 | bool used = false; | |
22fd0fab | 7529 | |
e2e1ed41 DV |
7530 | /* Don't try to disable disabled crtcs. */ |
7531 | if (!intel_crtc->base.enabled) | |
7532 | continue; | |
7e7d76c3 | 7533 | |
e2e1ed41 DV |
7534 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
7535 | base.head) { | |
7536 | if (encoder->new_crtc == intel_crtc) | |
7537 | used = true; | |
7538 | } | |
7539 | ||
7540 | if (!used) | |
7541 | *disable_pipes |= 1 << intel_crtc->pipe; | |
7e7d76c3 JB |
7542 | } |
7543 | ||
e2e1ed41 DV |
7544 | |
7545 | /* set_mode is also used to update properties on life display pipes. */ | |
7546 | intel_crtc = to_intel_crtc(crtc); | |
7547 | if (crtc->enabled) | |
7548 | *prepare_pipes |= 1 << intel_crtc->pipe; | |
7549 | ||
7550 | /* We only support modeset on one single crtc, hence we need to do that | |
7551 | * only for the passed in crtc iff we change anything else than just | |
7552 | * disable crtcs. | |
7553 | * | |
7554 | * This is actually not true, to be fully compatible with the old crtc | |
7555 | * helper we automatically disable _any_ output (i.e. doesn't need to be | |
7556 | * connected to the crtc we're modesetting on) if it's disconnected. | |
7557 | * Which is a rather nutty api (since changed the output configuration | |
7558 | * without userspace's explicit request can lead to confusion), but | |
7559 | * alas. Hence we currently need to modeset on all pipes we prepare. */ | |
7560 | if (*prepare_pipes) | |
7561 | *modeset_pipes = *prepare_pipes; | |
7562 | ||
7563 | /* ... and mask these out. */ | |
7564 | *modeset_pipes &= ~(*disable_pipes); | |
7565 | *prepare_pipes &= ~(*disable_pipes); | |
47f1c6c9 | 7566 | } |
79e53945 | 7567 | |
ea9d758d | 7568 | static bool intel_crtc_in_use(struct drm_crtc *crtc) |
f6e5b160 | 7569 | { |
ea9d758d | 7570 | struct drm_encoder *encoder; |
f6e5b160 | 7571 | struct drm_device *dev = crtc->dev; |
f6e5b160 | 7572 | |
ea9d758d DV |
7573 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) |
7574 | if (encoder->crtc == crtc) | |
7575 | return true; | |
7576 | ||
7577 | return false; | |
7578 | } | |
7579 | ||
7580 | static void | |
7581 | intel_modeset_update_state(struct drm_device *dev, unsigned prepare_pipes) | |
7582 | { | |
7583 | struct intel_encoder *intel_encoder; | |
7584 | struct intel_crtc *intel_crtc; | |
7585 | struct drm_connector *connector; | |
7586 | ||
7587 | list_for_each_entry(intel_encoder, &dev->mode_config.encoder_list, | |
7588 | base.head) { | |
7589 | if (!intel_encoder->base.crtc) | |
7590 | continue; | |
7591 | ||
7592 | intel_crtc = to_intel_crtc(intel_encoder->base.crtc); | |
7593 | ||
7594 | if (prepare_pipes & (1 << intel_crtc->pipe)) | |
7595 | intel_encoder->connectors_active = false; | |
7596 | } | |
7597 | ||
7598 | intel_modeset_commit_output_state(dev); | |
7599 | ||
7600 | /* Update computed state. */ | |
7601 | list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, | |
7602 | base.head) { | |
7603 | intel_crtc->base.enabled = intel_crtc_in_use(&intel_crtc->base); | |
7604 | } | |
7605 | ||
7606 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
7607 | if (!connector->encoder || !connector->encoder->crtc) | |
7608 | continue; | |
7609 | ||
7610 | intel_crtc = to_intel_crtc(connector->encoder->crtc); | |
7611 | ||
7612 | if (prepare_pipes & (1 << intel_crtc->pipe)) { | |
68d34720 DV |
7613 | struct drm_property *dpms_property = |
7614 | dev->mode_config.dpms_property; | |
7615 | ||
ea9d758d | 7616 | connector->dpms = DRM_MODE_DPMS_ON; |
662595df | 7617 | drm_object_property_set_value(&connector->base, |
68d34720 DV |
7618 | dpms_property, |
7619 | DRM_MODE_DPMS_ON); | |
ea9d758d DV |
7620 | |
7621 | intel_encoder = to_intel_encoder(connector->encoder); | |
7622 | intel_encoder->connectors_active = true; | |
7623 | } | |
7624 | } | |
7625 | ||
7626 | } | |
7627 | ||
25c5b266 DV |
7628 | #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \ |
7629 | list_for_each_entry((intel_crtc), \ | |
7630 | &(dev)->mode_config.crtc_list, \ | |
7631 | base.head) \ | |
7632 | if (mask & (1 <<(intel_crtc)->pipe)) \ | |
7633 | ||
b980514c | 7634 | void |
8af6cf88 DV |
7635 | intel_modeset_check_state(struct drm_device *dev) |
7636 | { | |
7637 | struct intel_crtc *crtc; | |
7638 | struct intel_encoder *encoder; | |
7639 | struct intel_connector *connector; | |
7640 | ||
7641 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
7642 | base.head) { | |
7643 | /* This also checks the encoder/connector hw state with the | |
7644 | * ->get_hw_state callbacks. */ | |
7645 | intel_connector_check_state(connector); | |
7646 | ||
7647 | WARN(&connector->new_encoder->base != connector->base.encoder, | |
7648 | "connector's staged encoder doesn't match current encoder\n"); | |
7649 | } | |
7650 | ||
7651 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
7652 | base.head) { | |
7653 | bool enabled = false; | |
7654 | bool active = false; | |
7655 | enum pipe pipe, tracked_pipe; | |
7656 | ||
7657 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", | |
7658 | encoder->base.base.id, | |
7659 | drm_get_encoder_name(&encoder->base)); | |
7660 | ||
7661 | WARN(&encoder->new_crtc->base != encoder->base.crtc, | |
7662 | "encoder's stage crtc doesn't match current crtc\n"); | |
7663 | WARN(encoder->connectors_active && !encoder->base.crtc, | |
7664 | "encoder's active_connectors set, but no crtc\n"); | |
7665 | ||
7666 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
7667 | base.head) { | |
7668 | if (connector->base.encoder != &encoder->base) | |
7669 | continue; | |
7670 | enabled = true; | |
7671 | if (connector->base.dpms != DRM_MODE_DPMS_OFF) | |
7672 | active = true; | |
7673 | } | |
7674 | WARN(!!encoder->base.crtc != enabled, | |
7675 | "encoder's enabled state mismatch " | |
7676 | "(expected %i, found %i)\n", | |
7677 | !!encoder->base.crtc, enabled); | |
7678 | WARN(active && !encoder->base.crtc, | |
7679 | "active encoder with no crtc\n"); | |
7680 | ||
7681 | WARN(encoder->connectors_active != active, | |
7682 | "encoder's computed active state doesn't match tracked active state " | |
7683 | "(expected %i, found %i)\n", active, encoder->connectors_active); | |
7684 | ||
7685 | active = encoder->get_hw_state(encoder, &pipe); | |
7686 | WARN(active != encoder->connectors_active, | |
7687 | "encoder's hw state doesn't match sw tracking " | |
7688 | "(expected %i, found %i)\n", | |
7689 | encoder->connectors_active, active); | |
7690 | ||
7691 | if (!encoder->base.crtc) | |
7692 | continue; | |
7693 | ||
7694 | tracked_pipe = to_intel_crtc(encoder->base.crtc)->pipe; | |
7695 | WARN(active && pipe != tracked_pipe, | |
7696 | "active encoder's pipe doesn't match" | |
7697 | "(expected %i, found %i)\n", | |
7698 | tracked_pipe, pipe); | |
7699 | ||
7700 | } | |
7701 | ||
7702 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, | |
7703 | base.head) { | |
7704 | bool enabled = false; | |
7705 | bool active = false; | |
7706 | ||
7707 | DRM_DEBUG_KMS("[CRTC:%d]\n", | |
7708 | crtc->base.base.id); | |
7709 | ||
7710 | WARN(crtc->active && !crtc->base.enabled, | |
7711 | "active crtc, but not enabled in sw tracking\n"); | |
7712 | ||
7713 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
7714 | base.head) { | |
7715 | if (encoder->base.crtc != &crtc->base) | |
7716 | continue; | |
7717 | enabled = true; | |
7718 | if (encoder->connectors_active) | |
7719 | active = true; | |
7720 | } | |
7721 | WARN(active != crtc->active, | |
7722 | "crtc's computed active state doesn't match tracked active state " | |
7723 | "(expected %i, found %i)\n", active, crtc->active); | |
7724 | WARN(enabled != crtc->base.enabled, | |
7725 | "crtc's computed enabled state doesn't match tracked enabled state " | |
7726 | "(expected %i, found %i)\n", enabled, crtc->base.enabled); | |
7727 | ||
7728 | assert_pipe(dev->dev_private, crtc->pipe, crtc->active); | |
7729 | } | |
7730 | } | |
7731 | ||
a6778b3c DV |
7732 | bool intel_set_mode(struct drm_crtc *crtc, |
7733 | struct drm_display_mode *mode, | |
94352cf9 | 7734 | int x, int y, struct drm_framebuffer *fb) |
a6778b3c DV |
7735 | { |
7736 | struct drm_device *dev = crtc->dev; | |
dbf2b54e | 7737 | drm_i915_private_t *dev_priv = dev->dev_private; |
a6778b3c | 7738 | struct drm_display_mode *adjusted_mode, saved_mode, saved_hwmode; |
25c5b266 DV |
7739 | struct intel_crtc *intel_crtc; |
7740 | unsigned disable_pipes, prepare_pipes, modeset_pipes; | |
a6778b3c DV |
7741 | bool ret = true; |
7742 | ||
e2e1ed41 | 7743 | intel_modeset_affected_pipes(crtc, &modeset_pipes, |
25c5b266 DV |
7744 | &prepare_pipes, &disable_pipes); |
7745 | ||
7746 | DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n", | |
7747 | modeset_pipes, prepare_pipes, disable_pipes); | |
e2e1ed41 | 7748 | |
976f8a20 DV |
7749 | for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc) |
7750 | intel_crtc_disable(&intel_crtc->base); | |
87f1faa6 | 7751 | |
a6778b3c DV |
7752 | saved_hwmode = crtc->hwmode; |
7753 | saved_mode = crtc->mode; | |
a6778b3c | 7754 | |
25c5b266 DV |
7755 | /* Hack: Because we don't (yet) support global modeset on multiple |
7756 | * crtcs, we don't keep track of the new mode for more than one crtc. | |
7757 | * Hence simply check whether any bit is set in modeset_pipes in all the | |
7758 | * pieces of code that are not yet converted to deal with mutliple crtcs | |
7759 | * changing their mode at the same time. */ | |
7760 | adjusted_mode = NULL; | |
7761 | if (modeset_pipes) { | |
7762 | adjusted_mode = intel_modeset_adjusted_mode(crtc, mode); | |
7763 | if (IS_ERR(adjusted_mode)) { | |
7764 | return false; | |
7765 | } | |
25c5b266 | 7766 | } |
a6778b3c | 7767 | |
ea9d758d DV |
7768 | for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) { |
7769 | if (intel_crtc->base.enabled) | |
7770 | dev_priv->display.crtc_disable(&intel_crtc->base); | |
7771 | } | |
a6778b3c | 7772 | |
6c4c86f5 DV |
7773 | /* crtc->mode is already used by the ->mode_set callbacks, hence we need |
7774 | * to set it here already despite that we pass it down the callchain. | |
f6e5b160 | 7775 | */ |
6c4c86f5 | 7776 | if (modeset_pipes) |
25c5b266 | 7777 | crtc->mode = *mode; |
7758a113 | 7778 | |
ea9d758d DV |
7779 | /* Only after disabling all output pipelines that will be changed can we |
7780 | * update the the output configuration. */ | |
7781 | intel_modeset_update_state(dev, prepare_pipes); | |
f6e5b160 | 7782 | |
47fab737 DV |
7783 | if (dev_priv->display.modeset_global_resources) |
7784 | dev_priv->display.modeset_global_resources(dev); | |
7785 | ||
a6778b3c DV |
7786 | /* Set up the DPLL and any encoders state that needs to adjust or depend |
7787 | * on the DPLL. | |
f6e5b160 | 7788 | */ |
25c5b266 DV |
7789 | for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) { |
7790 | ret = !intel_crtc_mode_set(&intel_crtc->base, | |
7791 | mode, adjusted_mode, | |
7792 | x, y, fb); | |
7793 | if (!ret) | |
7794 | goto done; | |
a6778b3c DV |
7795 | } |
7796 | ||
7797 | /* Now enable the clocks, plane, pipe, and connectors that we set up. */ | |
25c5b266 DV |
7798 | for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) |
7799 | dev_priv->display.crtc_enable(&intel_crtc->base); | |
a6778b3c | 7800 | |
25c5b266 DV |
7801 | if (modeset_pipes) { |
7802 | /* Store real post-adjustment hardware mode. */ | |
7803 | crtc->hwmode = *adjusted_mode; | |
a6778b3c | 7804 | |
25c5b266 DV |
7805 | /* Calculate and store various constants which |
7806 | * are later needed by vblank and swap-completion | |
7807 | * timestamping. They are derived from true hwmode. | |
7808 | */ | |
7809 | drm_calc_timestamping_constants(crtc); | |
7810 | } | |
a6778b3c DV |
7811 | |
7812 | /* FIXME: add subpixel order */ | |
7813 | done: | |
7814 | drm_mode_destroy(dev, adjusted_mode); | |
25c5b266 | 7815 | if (!ret && crtc->enabled) { |
a6778b3c DV |
7816 | crtc->hwmode = saved_hwmode; |
7817 | crtc->mode = saved_mode; | |
8af6cf88 DV |
7818 | } else { |
7819 | intel_modeset_check_state(dev); | |
a6778b3c DV |
7820 | } |
7821 | ||
7822 | return ret; | |
f6e5b160 CW |
7823 | } |
7824 | ||
25c5b266 DV |
7825 | #undef for_each_intel_crtc_masked |
7826 | ||
d9e55608 DV |
7827 | static void intel_set_config_free(struct intel_set_config *config) |
7828 | { | |
7829 | if (!config) | |
7830 | return; | |
7831 | ||
1aa4b628 DV |
7832 | kfree(config->save_connector_encoders); |
7833 | kfree(config->save_encoder_crtcs); | |
d9e55608 DV |
7834 | kfree(config); |
7835 | } | |
7836 | ||
85f9eb71 DV |
7837 | static int intel_set_config_save_state(struct drm_device *dev, |
7838 | struct intel_set_config *config) | |
7839 | { | |
85f9eb71 DV |
7840 | struct drm_encoder *encoder; |
7841 | struct drm_connector *connector; | |
7842 | int count; | |
7843 | ||
1aa4b628 DV |
7844 | config->save_encoder_crtcs = |
7845 | kcalloc(dev->mode_config.num_encoder, | |
7846 | sizeof(struct drm_crtc *), GFP_KERNEL); | |
7847 | if (!config->save_encoder_crtcs) | |
85f9eb71 DV |
7848 | return -ENOMEM; |
7849 | ||
1aa4b628 DV |
7850 | config->save_connector_encoders = |
7851 | kcalloc(dev->mode_config.num_connector, | |
7852 | sizeof(struct drm_encoder *), GFP_KERNEL); | |
7853 | if (!config->save_connector_encoders) | |
85f9eb71 DV |
7854 | return -ENOMEM; |
7855 | ||
7856 | /* Copy data. Note that driver private data is not affected. | |
7857 | * Should anything bad happen only the expected state is | |
7858 | * restored, not the drivers personal bookkeeping. | |
7859 | */ | |
85f9eb71 DV |
7860 | count = 0; |
7861 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
1aa4b628 | 7862 | config->save_encoder_crtcs[count++] = encoder->crtc; |
85f9eb71 DV |
7863 | } |
7864 | ||
7865 | count = 0; | |
7866 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
1aa4b628 | 7867 | config->save_connector_encoders[count++] = connector->encoder; |
85f9eb71 DV |
7868 | } |
7869 | ||
7870 | return 0; | |
7871 | } | |
7872 | ||
7873 | static void intel_set_config_restore_state(struct drm_device *dev, | |
7874 | struct intel_set_config *config) | |
7875 | { | |
9a935856 DV |
7876 | struct intel_encoder *encoder; |
7877 | struct intel_connector *connector; | |
85f9eb71 DV |
7878 | int count; |
7879 | ||
85f9eb71 | 7880 | count = 0; |
9a935856 DV |
7881 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
7882 | encoder->new_crtc = | |
7883 | to_intel_crtc(config->save_encoder_crtcs[count++]); | |
85f9eb71 DV |
7884 | } |
7885 | ||
7886 | count = 0; | |
9a935856 DV |
7887 | list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) { |
7888 | connector->new_encoder = | |
7889 | to_intel_encoder(config->save_connector_encoders[count++]); | |
85f9eb71 DV |
7890 | } |
7891 | } | |
7892 | ||
5e2b584e DV |
7893 | static void |
7894 | intel_set_config_compute_mode_changes(struct drm_mode_set *set, | |
7895 | struct intel_set_config *config) | |
7896 | { | |
7897 | ||
7898 | /* We should be able to check here if the fb has the same properties | |
7899 | * and then just flip_or_move it */ | |
7900 | if (set->crtc->fb != set->fb) { | |
7901 | /* If we have no fb then treat it as a full mode set */ | |
7902 | if (set->crtc->fb == NULL) { | |
7903 | DRM_DEBUG_KMS("crtc has no fb, full mode set\n"); | |
7904 | config->mode_changed = true; | |
7905 | } else if (set->fb == NULL) { | |
7906 | config->mode_changed = true; | |
7907 | } else if (set->fb->depth != set->crtc->fb->depth) { | |
7908 | config->mode_changed = true; | |
7909 | } else if (set->fb->bits_per_pixel != | |
7910 | set->crtc->fb->bits_per_pixel) { | |
7911 | config->mode_changed = true; | |
7912 | } else | |
7913 | config->fb_changed = true; | |
7914 | } | |
7915 | ||
835c5873 | 7916 | if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y)) |
5e2b584e DV |
7917 | config->fb_changed = true; |
7918 | ||
7919 | if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) { | |
7920 | DRM_DEBUG_KMS("modes are different, full mode set\n"); | |
7921 | drm_mode_debug_printmodeline(&set->crtc->mode); | |
7922 | drm_mode_debug_printmodeline(set->mode); | |
7923 | config->mode_changed = true; | |
7924 | } | |
7925 | } | |
7926 | ||
2e431051 | 7927 | static int |
9a935856 DV |
7928 | intel_modeset_stage_output_state(struct drm_device *dev, |
7929 | struct drm_mode_set *set, | |
7930 | struct intel_set_config *config) | |
50f56119 | 7931 | { |
85f9eb71 | 7932 | struct drm_crtc *new_crtc; |
9a935856 DV |
7933 | struct intel_connector *connector; |
7934 | struct intel_encoder *encoder; | |
2e431051 | 7935 | int count, ro; |
50f56119 | 7936 | |
9a935856 DV |
7937 | /* The upper layers ensure that we either disabl a crtc or have a list |
7938 | * of connectors. For paranoia, double-check this. */ | |
7939 | WARN_ON(!set->fb && (set->num_connectors != 0)); | |
7940 | WARN_ON(set->fb && (set->num_connectors == 0)); | |
7941 | ||
50f56119 | 7942 | count = 0; |
9a935856 DV |
7943 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
7944 | base.head) { | |
7945 | /* Otherwise traverse passed in connector list and get encoders | |
7946 | * for them. */ | |
50f56119 | 7947 | for (ro = 0; ro < set->num_connectors; ro++) { |
9a935856 DV |
7948 | if (set->connectors[ro] == &connector->base) { |
7949 | connector->new_encoder = connector->encoder; | |
50f56119 DV |
7950 | break; |
7951 | } | |
7952 | } | |
7953 | ||
9a935856 DV |
7954 | /* If we disable the crtc, disable all its connectors. Also, if |
7955 | * the connector is on the changing crtc but not on the new | |
7956 | * connector list, disable it. */ | |
7957 | if ((!set->fb || ro == set->num_connectors) && | |
7958 | connector->base.encoder && | |
7959 | connector->base.encoder->crtc == set->crtc) { | |
7960 | connector->new_encoder = NULL; | |
7961 | ||
7962 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n", | |
7963 | connector->base.base.id, | |
7964 | drm_get_connector_name(&connector->base)); | |
7965 | } | |
7966 | ||
7967 | ||
7968 | if (&connector->new_encoder->base != connector->base.encoder) { | |
50f56119 | 7969 | DRM_DEBUG_KMS("encoder changed, full mode switch\n"); |
5e2b584e | 7970 | config->mode_changed = true; |
50f56119 | 7971 | } |
9a935856 DV |
7972 | |
7973 | /* Disable all disconnected encoders. */ | |
7974 | if (connector->base.status == connector_status_disconnected) | |
7975 | connector->new_encoder = NULL; | |
50f56119 | 7976 | } |
9a935856 | 7977 | /* connector->new_encoder is now updated for all connectors. */ |
50f56119 | 7978 | |
9a935856 | 7979 | /* Update crtc of enabled connectors. */ |
50f56119 | 7980 | count = 0; |
9a935856 DV |
7981 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
7982 | base.head) { | |
7983 | if (!connector->new_encoder) | |
50f56119 DV |
7984 | continue; |
7985 | ||
9a935856 | 7986 | new_crtc = connector->new_encoder->base.crtc; |
50f56119 DV |
7987 | |
7988 | for (ro = 0; ro < set->num_connectors; ro++) { | |
9a935856 | 7989 | if (set->connectors[ro] == &connector->base) |
50f56119 DV |
7990 | new_crtc = set->crtc; |
7991 | } | |
7992 | ||
7993 | /* Make sure the new CRTC will work with the encoder */ | |
9a935856 DV |
7994 | if (!intel_encoder_crtc_ok(&connector->new_encoder->base, |
7995 | new_crtc)) { | |
5e2b584e | 7996 | return -EINVAL; |
50f56119 | 7997 | } |
9a935856 DV |
7998 | connector->encoder->new_crtc = to_intel_crtc(new_crtc); |
7999 | ||
8000 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n", | |
8001 | connector->base.base.id, | |
8002 | drm_get_connector_name(&connector->base), | |
8003 | new_crtc->base.id); | |
8004 | } | |
8005 | ||
8006 | /* Check for any encoders that needs to be disabled. */ | |
8007 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
8008 | base.head) { | |
8009 | list_for_each_entry(connector, | |
8010 | &dev->mode_config.connector_list, | |
8011 | base.head) { | |
8012 | if (connector->new_encoder == encoder) { | |
8013 | WARN_ON(!connector->new_encoder->new_crtc); | |
8014 | ||
8015 | goto next_encoder; | |
8016 | } | |
8017 | } | |
8018 | encoder->new_crtc = NULL; | |
8019 | next_encoder: | |
8020 | /* Only now check for crtc changes so we don't miss encoders | |
8021 | * that will be disabled. */ | |
8022 | if (&encoder->new_crtc->base != encoder->base.crtc) { | |
50f56119 | 8023 | DRM_DEBUG_KMS("crtc changed, full mode switch\n"); |
5e2b584e | 8024 | config->mode_changed = true; |
50f56119 DV |
8025 | } |
8026 | } | |
9a935856 | 8027 | /* Now we've also updated encoder->new_crtc for all encoders. */ |
50f56119 | 8028 | |
2e431051 DV |
8029 | return 0; |
8030 | } | |
8031 | ||
8032 | static int intel_crtc_set_config(struct drm_mode_set *set) | |
8033 | { | |
8034 | struct drm_device *dev; | |
2e431051 DV |
8035 | struct drm_mode_set save_set; |
8036 | struct intel_set_config *config; | |
8037 | int ret; | |
2e431051 | 8038 | |
8d3e375e DV |
8039 | BUG_ON(!set); |
8040 | BUG_ON(!set->crtc); | |
8041 | BUG_ON(!set->crtc->helper_private); | |
2e431051 DV |
8042 | |
8043 | if (!set->mode) | |
8044 | set->fb = NULL; | |
8045 | ||
431e50f7 DV |
8046 | /* The fb helper likes to play gross jokes with ->mode_set_config. |
8047 | * Unfortunately the crtc helper doesn't do much at all for this case, | |
8048 | * so we have to cope with this madness until the fb helper is fixed up. */ | |
8049 | if (set->fb && set->num_connectors == 0) | |
8050 | return 0; | |
8051 | ||
2e431051 DV |
8052 | if (set->fb) { |
8053 | DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n", | |
8054 | set->crtc->base.id, set->fb->base.id, | |
8055 | (int)set->num_connectors, set->x, set->y); | |
8056 | } else { | |
8057 | DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id); | |
2e431051 DV |
8058 | } |
8059 | ||
8060 | dev = set->crtc->dev; | |
8061 | ||
8062 | ret = -ENOMEM; | |
8063 | config = kzalloc(sizeof(*config), GFP_KERNEL); | |
8064 | if (!config) | |
8065 | goto out_config; | |
8066 | ||
8067 | ret = intel_set_config_save_state(dev, config); | |
8068 | if (ret) | |
8069 | goto out_config; | |
8070 | ||
8071 | save_set.crtc = set->crtc; | |
8072 | save_set.mode = &set->crtc->mode; | |
8073 | save_set.x = set->crtc->x; | |
8074 | save_set.y = set->crtc->y; | |
8075 | save_set.fb = set->crtc->fb; | |
8076 | ||
8077 | /* Compute whether we need a full modeset, only an fb base update or no | |
8078 | * change at all. In the future we might also check whether only the | |
8079 | * mode changed, e.g. for LVDS where we only change the panel fitter in | |
8080 | * such cases. */ | |
8081 | intel_set_config_compute_mode_changes(set, config); | |
8082 | ||
9a935856 | 8083 | ret = intel_modeset_stage_output_state(dev, set, config); |
2e431051 DV |
8084 | if (ret) |
8085 | goto fail; | |
8086 | ||
5e2b584e | 8087 | if (config->mode_changed) { |
87f1faa6 | 8088 | if (set->mode) { |
50f56119 DV |
8089 | DRM_DEBUG_KMS("attempting to set mode from" |
8090 | " userspace\n"); | |
8091 | drm_mode_debug_printmodeline(set->mode); | |
87f1faa6 DV |
8092 | } |
8093 | ||
8094 | if (!intel_set_mode(set->crtc, set->mode, | |
8095 | set->x, set->y, set->fb)) { | |
8096 | DRM_ERROR("failed to set mode on [CRTC:%d]\n", | |
8097 | set->crtc->base.id); | |
8098 | ret = -EINVAL; | |
8099 | goto fail; | |
8100 | } | |
5e2b584e | 8101 | } else if (config->fb_changed) { |
4f660f49 | 8102 | ret = intel_pipe_set_base(set->crtc, |
94352cf9 | 8103 | set->x, set->y, set->fb); |
50f56119 DV |
8104 | } |
8105 | ||
d9e55608 DV |
8106 | intel_set_config_free(config); |
8107 | ||
50f56119 DV |
8108 | return 0; |
8109 | ||
8110 | fail: | |
85f9eb71 | 8111 | intel_set_config_restore_state(dev, config); |
50f56119 DV |
8112 | |
8113 | /* Try to restore the config */ | |
5e2b584e | 8114 | if (config->mode_changed && |
a6778b3c DV |
8115 | !intel_set_mode(save_set.crtc, save_set.mode, |
8116 | save_set.x, save_set.y, save_set.fb)) | |
50f56119 DV |
8117 | DRM_ERROR("failed to restore config after modeset failure\n"); |
8118 | ||
d9e55608 DV |
8119 | out_config: |
8120 | intel_set_config_free(config); | |
50f56119 DV |
8121 | return ret; |
8122 | } | |
f6e5b160 CW |
8123 | |
8124 | static const struct drm_crtc_funcs intel_crtc_funcs = { | |
f6e5b160 CW |
8125 | .cursor_set = intel_crtc_cursor_set, |
8126 | .cursor_move = intel_crtc_cursor_move, | |
8127 | .gamma_set = intel_crtc_gamma_set, | |
50f56119 | 8128 | .set_config = intel_crtc_set_config, |
f6e5b160 CW |
8129 | .destroy = intel_crtc_destroy, |
8130 | .page_flip = intel_crtc_page_flip, | |
8131 | }; | |
8132 | ||
79f689aa PZ |
8133 | static void intel_cpu_pll_init(struct drm_device *dev) |
8134 | { | |
8135 | if (IS_HASWELL(dev)) | |
8136 | intel_ddi_pll_init(dev); | |
8137 | } | |
8138 | ||
ee7b9f93 JB |
8139 | static void intel_pch_pll_init(struct drm_device *dev) |
8140 | { | |
8141 | drm_i915_private_t *dev_priv = dev->dev_private; | |
8142 | int i; | |
8143 | ||
8144 | if (dev_priv->num_pch_pll == 0) { | |
8145 | DRM_DEBUG_KMS("No PCH PLLs on this hardware, skipping initialisation\n"); | |
8146 | return; | |
8147 | } | |
8148 | ||
8149 | for (i = 0; i < dev_priv->num_pch_pll; i++) { | |
8150 | dev_priv->pch_plls[i].pll_reg = _PCH_DPLL(i); | |
8151 | dev_priv->pch_plls[i].fp0_reg = _PCH_FP0(i); | |
8152 | dev_priv->pch_plls[i].fp1_reg = _PCH_FP1(i); | |
8153 | } | |
8154 | } | |
8155 | ||
b358d0a6 | 8156 | static void intel_crtc_init(struct drm_device *dev, int pipe) |
79e53945 | 8157 | { |
22fd0fab | 8158 | drm_i915_private_t *dev_priv = dev->dev_private; |
79e53945 JB |
8159 | struct intel_crtc *intel_crtc; |
8160 | int i; | |
8161 | ||
8162 | intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL); | |
8163 | if (intel_crtc == NULL) | |
8164 | return; | |
8165 | ||
8166 | drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs); | |
8167 | ||
8168 | drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256); | |
79e53945 JB |
8169 | for (i = 0; i < 256; i++) { |
8170 | intel_crtc->lut_r[i] = i; | |
8171 | intel_crtc->lut_g[i] = i; | |
8172 | intel_crtc->lut_b[i] = i; | |
8173 | } | |
8174 | ||
80824003 JB |
8175 | /* Swap pipes & planes for FBC on pre-965 */ |
8176 | intel_crtc->pipe = pipe; | |
8177 | intel_crtc->plane = pipe; | |
a5c961d1 | 8178 | intel_crtc->cpu_transcoder = pipe; |
e2e767ab | 8179 | if (IS_MOBILE(dev) && IS_GEN3(dev)) { |
28c97730 | 8180 | DRM_DEBUG_KMS("swapping pipes & planes for FBC\n"); |
e2e767ab | 8181 | intel_crtc->plane = !pipe; |
80824003 JB |
8182 | } |
8183 | ||
22fd0fab JB |
8184 | BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) || |
8185 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL); | |
8186 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base; | |
8187 | dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base; | |
8188 | ||
5a354204 | 8189 | intel_crtc->bpp = 24; /* default for pre-Ironlake */ |
7e7d76c3 | 8190 | |
79e53945 | 8191 | drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); |
79e53945 JB |
8192 | } |
8193 | ||
08d7b3d1 | 8194 | int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, |
05394f39 | 8195 | struct drm_file *file) |
08d7b3d1 | 8196 | { |
08d7b3d1 | 8197 | struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; |
c05422d5 DV |
8198 | struct drm_mode_object *drmmode_obj; |
8199 | struct intel_crtc *crtc; | |
08d7b3d1 | 8200 | |
1cff8f6b DV |
8201 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
8202 | return -ENODEV; | |
08d7b3d1 | 8203 | |
c05422d5 DV |
8204 | drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id, |
8205 | DRM_MODE_OBJECT_CRTC); | |
08d7b3d1 | 8206 | |
c05422d5 | 8207 | if (!drmmode_obj) { |
08d7b3d1 CW |
8208 | DRM_ERROR("no such CRTC id\n"); |
8209 | return -EINVAL; | |
8210 | } | |
8211 | ||
c05422d5 DV |
8212 | crtc = to_intel_crtc(obj_to_crtc(drmmode_obj)); |
8213 | pipe_from_crtc_id->pipe = crtc->pipe; | |
08d7b3d1 | 8214 | |
c05422d5 | 8215 | return 0; |
08d7b3d1 CW |
8216 | } |
8217 | ||
66a9278e | 8218 | static int intel_encoder_clones(struct intel_encoder *encoder) |
79e53945 | 8219 | { |
66a9278e DV |
8220 | struct drm_device *dev = encoder->base.dev; |
8221 | struct intel_encoder *source_encoder; | |
79e53945 | 8222 | int index_mask = 0; |
79e53945 JB |
8223 | int entry = 0; |
8224 | ||
66a9278e DV |
8225 | list_for_each_entry(source_encoder, |
8226 | &dev->mode_config.encoder_list, base.head) { | |
8227 | ||
8228 | if (encoder == source_encoder) | |
79e53945 | 8229 | index_mask |= (1 << entry); |
66a9278e DV |
8230 | |
8231 | /* Intel hw has only one MUX where enocoders could be cloned. */ | |
8232 | if (encoder->cloneable && source_encoder->cloneable) | |
8233 | index_mask |= (1 << entry); | |
8234 | ||
79e53945 JB |
8235 | entry++; |
8236 | } | |
4ef69c7a | 8237 | |
79e53945 JB |
8238 | return index_mask; |
8239 | } | |
8240 | ||
4d302442 CW |
8241 | static bool has_edp_a(struct drm_device *dev) |
8242 | { | |
8243 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8244 | ||
8245 | if (!IS_MOBILE(dev)) | |
8246 | return false; | |
8247 | ||
8248 | if ((I915_READ(DP_A) & DP_DETECTED) == 0) | |
8249 | return false; | |
8250 | ||
8251 | if (IS_GEN5(dev) && | |
8252 | (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE)) | |
8253 | return false; | |
8254 | ||
8255 | return true; | |
8256 | } | |
8257 | ||
79e53945 JB |
8258 | static void intel_setup_outputs(struct drm_device *dev) |
8259 | { | |
725e30ad | 8260 | struct drm_i915_private *dev_priv = dev->dev_private; |
4ef69c7a | 8261 | struct intel_encoder *encoder; |
cb0953d7 | 8262 | bool dpd_is_edp = false; |
f3cfcba6 | 8263 | bool has_lvds; |
79e53945 | 8264 | |
f3cfcba6 | 8265 | has_lvds = intel_lvds_init(dev); |
c5d1b51d CW |
8266 | if (!has_lvds && !HAS_PCH_SPLIT(dev)) { |
8267 | /* disable the panel fitter on everything but LVDS */ | |
8268 | I915_WRITE(PFIT_CONTROL, 0); | |
8269 | } | |
79e53945 | 8270 | |
79935fca PZ |
8271 | if (!(IS_HASWELL(dev) && |
8272 | (I915_READ(DDI_BUF_CTL(PORT_A)) & DDI_A_4_LANES))) | |
8273 | intel_crt_init(dev); | |
cb0953d7 | 8274 | |
0e72a5b5 ED |
8275 | if (IS_HASWELL(dev)) { |
8276 | int found; | |
8277 | ||
8278 | /* Haswell uses DDI functions to detect digital outputs */ | |
8279 | found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED; | |
8280 | /* DDI A only supports eDP */ | |
8281 | if (found) | |
8282 | intel_ddi_init(dev, PORT_A); | |
8283 | ||
8284 | /* DDI B, C and D detection is indicated by the SFUSE_STRAP | |
8285 | * register */ | |
8286 | found = I915_READ(SFUSE_STRAP); | |
8287 | ||
8288 | if (found & SFUSE_STRAP_DDIB_DETECTED) | |
8289 | intel_ddi_init(dev, PORT_B); | |
8290 | if (found & SFUSE_STRAP_DDIC_DETECTED) | |
8291 | intel_ddi_init(dev, PORT_C); | |
8292 | if (found & SFUSE_STRAP_DDID_DETECTED) | |
8293 | intel_ddi_init(dev, PORT_D); | |
8294 | } else if (HAS_PCH_SPLIT(dev)) { | |
cb0953d7 | 8295 | int found; |
270b3042 DV |
8296 | dpd_is_edp = intel_dpd_is_edp(dev); |
8297 | ||
8298 | if (has_edp_a(dev)) | |
8299 | intel_dp_init(dev, DP_A, PORT_A); | |
cb0953d7 | 8300 | |
30ad48b7 | 8301 | if (I915_READ(HDMIB) & PORT_DETECTED) { |
461ed3ca | 8302 | /* PCH SDVOB multiplex with HDMIB */ |
eef4eacb | 8303 | found = intel_sdvo_init(dev, PCH_SDVOB, true); |
30ad48b7 | 8304 | if (!found) |
08d644ad | 8305 | intel_hdmi_init(dev, HDMIB, PORT_B); |
5eb08b69 | 8306 | if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) |
ab9d7c30 | 8307 | intel_dp_init(dev, PCH_DP_B, PORT_B); |
30ad48b7 ZW |
8308 | } |
8309 | ||
8310 | if (I915_READ(HDMIC) & PORT_DETECTED) | |
08d644ad | 8311 | intel_hdmi_init(dev, HDMIC, PORT_C); |
30ad48b7 | 8312 | |
b708a1d5 | 8313 | if (!dpd_is_edp && I915_READ(HDMID) & PORT_DETECTED) |
08d644ad | 8314 | intel_hdmi_init(dev, HDMID, PORT_D); |
30ad48b7 | 8315 | |
5eb08b69 | 8316 | if (I915_READ(PCH_DP_C) & DP_DETECTED) |
ab9d7c30 | 8317 | intel_dp_init(dev, PCH_DP_C, PORT_C); |
5eb08b69 | 8318 | |
270b3042 | 8319 | if (I915_READ(PCH_DP_D) & DP_DETECTED) |
ab9d7c30 | 8320 | intel_dp_init(dev, PCH_DP_D, PORT_D); |
4a87d65d JB |
8321 | } else if (IS_VALLEYVIEW(dev)) { |
8322 | int found; | |
8323 | ||
19c03924 GB |
8324 | /* Check for built-in panel first. Shares lanes with HDMI on SDVOC */ |
8325 | if (I915_READ(DP_C) & DP_DETECTED) | |
8326 | intel_dp_init(dev, DP_C, PORT_C); | |
8327 | ||
4a87d65d JB |
8328 | if (I915_READ(SDVOB) & PORT_DETECTED) { |
8329 | /* SDVOB multiplex with HDMIB */ | |
8330 | found = intel_sdvo_init(dev, SDVOB, true); | |
8331 | if (!found) | |
08d644ad | 8332 | intel_hdmi_init(dev, SDVOB, PORT_B); |
4a87d65d | 8333 | if (!found && (I915_READ(DP_B) & DP_DETECTED)) |
ab9d7c30 | 8334 | intel_dp_init(dev, DP_B, PORT_B); |
4a87d65d JB |
8335 | } |
8336 | ||
8337 | if (I915_READ(SDVOC) & PORT_DETECTED) | |
08d644ad | 8338 | intel_hdmi_init(dev, SDVOC, PORT_C); |
5eb08b69 | 8339 | |
103a196f | 8340 | } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) { |
27185ae1 | 8341 | bool found = false; |
7d57382e | 8342 | |
725e30ad | 8343 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 8344 | DRM_DEBUG_KMS("probing SDVOB\n"); |
eef4eacb | 8345 | found = intel_sdvo_init(dev, SDVOB, true); |
b01f2c3a JB |
8346 | if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) { |
8347 | DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); | |
08d644ad | 8348 | intel_hdmi_init(dev, SDVOB, PORT_B); |
b01f2c3a | 8349 | } |
27185ae1 | 8350 | |
b01f2c3a JB |
8351 | if (!found && SUPPORTS_INTEGRATED_DP(dev)) { |
8352 | DRM_DEBUG_KMS("probing DP_B\n"); | |
ab9d7c30 | 8353 | intel_dp_init(dev, DP_B, PORT_B); |
b01f2c3a | 8354 | } |
725e30ad | 8355 | } |
13520b05 KH |
8356 | |
8357 | /* Before G4X SDVOC doesn't have its own detect register */ | |
13520b05 | 8358 | |
b01f2c3a JB |
8359 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
8360 | DRM_DEBUG_KMS("probing SDVOC\n"); | |
eef4eacb | 8361 | found = intel_sdvo_init(dev, SDVOC, false); |
b01f2c3a | 8362 | } |
27185ae1 ML |
8363 | |
8364 | if (!found && (I915_READ(SDVOC) & SDVO_DETECTED)) { | |
8365 | ||
b01f2c3a JB |
8366 | if (SUPPORTS_INTEGRATED_HDMI(dev)) { |
8367 | DRM_DEBUG_KMS("probing HDMI on SDVOC\n"); | |
08d644ad | 8368 | intel_hdmi_init(dev, SDVOC, PORT_C); |
b01f2c3a JB |
8369 | } |
8370 | if (SUPPORTS_INTEGRATED_DP(dev)) { | |
8371 | DRM_DEBUG_KMS("probing DP_C\n"); | |
ab9d7c30 | 8372 | intel_dp_init(dev, DP_C, PORT_C); |
b01f2c3a | 8373 | } |
725e30ad | 8374 | } |
27185ae1 | 8375 | |
b01f2c3a JB |
8376 | if (SUPPORTS_INTEGRATED_DP(dev) && |
8377 | (I915_READ(DP_D) & DP_DETECTED)) { | |
8378 | DRM_DEBUG_KMS("probing DP_D\n"); | |
ab9d7c30 | 8379 | intel_dp_init(dev, DP_D, PORT_D); |
b01f2c3a | 8380 | } |
bad720ff | 8381 | } else if (IS_GEN2(dev)) |
79e53945 JB |
8382 | intel_dvo_init(dev); |
8383 | ||
103a196f | 8384 | if (SUPPORTS_TV(dev)) |
79e53945 JB |
8385 | intel_tv_init(dev); |
8386 | ||
4ef69c7a CW |
8387 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
8388 | encoder->base.possible_crtcs = encoder->crtc_mask; | |
8389 | encoder->base.possible_clones = | |
66a9278e | 8390 | intel_encoder_clones(encoder); |
79e53945 | 8391 | } |
47356eb6 | 8392 | |
40579abe | 8393 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) |
9fb526db | 8394 | ironlake_init_pch_refclk(dev); |
270b3042 DV |
8395 | |
8396 | drm_helper_move_panel_connectors_to_head(dev); | |
79e53945 JB |
8397 | } |
8398 | ||
8399 | static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb) | |
8400 | { | |
8401 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
79e53945 JB |
8402 | |
8403 | drm_framebuffer_cleanup(fb); | |
05394f39 | 8404 | drm_gem_object_unreference_unlocked(&intel_fb->obj->base); |
79e53945 JB |
8405 | |
8406 | kfree(intel_fb); | |
8407 | } | |
8408 | ||
8409 | static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb, | |
05394f39 | 8410 | struct drm_file *file, |
79e53945 JB |
8411 | unsigned int *handle) |
8412 | { | |
8413 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
05394f39 | 8414 | struct drm_i915_gem_object *obj = intel_fb->obj; |
79e53945 | 8415 | |
05394f39 | 8416 | return drm_gem_handle_create(file, &obj->base, handle); |
79e53945 JB |
8417 | } |
8418 | ||
8419 | static const struct drm_framebuffer_funcs intel_fb_funcs = { | |
8420 | .destroy = intel_user_framebuffer_destroy, | |
8421 | .create_handle = intel_user_framebuffer_create_handle, | |
8422 | }; | |
8423 | ||
38651674 DA |
8424 | int intel_framebuffer_init(struct drm_device *dev, |
8425 | struct intel_framebuffer *intel_fb, | |
308e5bcb | 8426 | struct drm_mode_fb_cmd2 *mode_cmd, |
05394f39 | 8427 | struct drm_i915_gem_object *obj) |
79e53945 | 8428 | { |
79e53945 JB |
8429 | int ret; |
8430 | ||
05394f39 | 8431 | if (obj->tiling_mode == I915_TILING_Y) |
57cd6508 CW |
8432 | return -EINVAL; |
8433 | ||
308e5bcb | 8434 | if (mode_cmd->pitches[0] & 63) |
57cd6508 CW |
8435 | return -EINVAL; |
8436 | ||
5d7bd705 VS |
8437 | /* FIXME <= Gen4 stride limits are bit unclear */ |
8438 | if (mode_cmd->pitches[0] > 32768) | |
8439 | return -EINVAL; | |
8440 | ||
8441 | if (obj->tiling_mode != I915_TILING_NONE && | |
8442 | mode_cmd->pitches[0] != obj->stride) | |
8443 | return -EINVAL; | |
8444 | ||
57779d06 | 8445 | /* Reject formats not supported by any plane early. */ |
308e5bcb | 8446 | switch (mode_cmd->pixel_format) { |
57779d06 | 8447 | case DRM_FORMAT_C8: |
04b3924d VS |
8448 | case DRM_FORMAT_RGB565: |
8449 | case DRM_FORMAT_XRGB8888: | |
8450 | case DRM_FORMAT_ARGB8888: | |
57779d06 VS |
8451 | break; |
8452 | case DRM_FORMAT_XRGB1555: | |
8453 | case DRM_FORMAT_ARGB1555: | |
8454 | if (INTEL_INFO(dev)->gen > 3) | |
8455 | return -EINVAL; | |
8456 | break; | |
8457 | case DRM_FORMAT_XBGR8888: | |
8458 | case DRM_FORMAT_ABGR8888: | |
04b3924d VS |
8459 | case DRM_FORMAT_XRGB2101010: |
8460 | case DRM_FORMAT_ARGB2101010: | |
57779d06 VS |
8461 | case DRM_FORMAT_XBGR2101010: |
8462 | case DRM_FORMAT_ABGR2101010: | |
8463 | if (INTEL_INFO(dev)->gen < 4) | |
8464 | return -EINVAL; | |
b5626747 | 8465 | break; |
04b3924d VS |
8466 | case DRM_FORMAT_YUYV: |
8467 | case DRM_FORMAT_UYVY: | |
8468 | case DRM_FORMAT_YVYU: | |
8469 | case DRM_FORMAT_VYUY: | |
57779d06 VS |
8470 | if (INTEL_INFO(dev)->gen < 6) |
8471 | return -EINVAL; | |
57cd6508 CW |
8472 | break; |
8473 | default: | |
57779d06 | 8474 | DRM_DEBUG_KMS("unsupported pixel format 0x%08x\n", mode_cmd->pixel_format); |
57cd6508 CW |
8475 | return -EINVAL; |
8476 | } | |
8477 | ||
90f9a336 VS |
8478 | /* FIXME need to adjust LINOFF/TILEOFF accordingly. */ |
8479 | if (mode_cmd->offsets[0] != 0) | |
8480 | return -EINVAL; | |
8481 | ||
79e53945 JB |
8482 | ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); |
8483 | if (ret) { | |
8484 | DRM_ERROR("framebuffer init failed %d\n", ret); | |
8485 | return ret; | |
8486 | } | |
8487 | ||
8488 | drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); | |
79e53945 | 8489 | intel_fb->obj = obj; |
79e53945 JB |
8490 | return 0; |
8491 | } | |
8492 | ||
79e53945 JB |
8493 | static struct drm_framebuffer * |
8494 | intel_user_framebuffer_create(struct drm_device *dev, | |
8495 | struct drm_file *filp, | |
308e5bcb | 8496 | struct drm_mode_fb_cmd2 *mode_cmd) |
79e53945 | 8497 | { |
05394f39 | 8498 | struct drm_i915_gem_object *obj; |
79e53945 | 8499 | |
308e5bcb JB |
8500 | obj = to_intel_bo(drm_gem_object_lookup(dev, filp, |
8501 | mode_cmd->handles[0])); | |
c8725226 | 8502 | if (&obj->base == NULL) |
cce13ff7 | 8503 | return ERR_PTR(-ENOENT); |
79e53945 | 8504 | |
d2dff872 | 8505 | return intel_framebuffer_create(dev, mode_cmd, obj); |
79e53945 JB |
8506 | } |
8507 | ||
79e53945 | 8508 | static const struct drm_mode_config_funcs intel_mode_funcs = { |
79e53945 | 8509 | .fb_create = intel_user_framebuffer_create, |
eb1f8e4f | 8510 | .output_poll_changed = intel_fb_output_poll_changed, |
79e53945 JB |
8511 | }; |
8512 | ||
e70236a8 JB |
8513 | /* Set up chip specific display functions */ |
8514 | static void intel_init_display(struct drm_device *dev) | |
8515 | { | |
8516 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8517 | ||
8518 | /* We always want a DPMS function */ | |
09b4ddf9 PZ |
8519 | if (IS_HASWELL(dev)) { |
8520 | dev_priv->display.crtc_mode_set = haswell_crtc_mode_set; | |
4f771f10 PZ |
8521 | dev_priv->display.crtc_enable = haswell_crtc_enable; |
8522 | dev_priv->display.crtc_disable = haswell_crtc_disable; | |
6441ab5f | 8523 | dev_priv->display.off = haswell_crtc_off; |
09b4ddf9 PZ |
8524 | dev_priv->display.update_plane = ironlake_update_plane; |
8525 | } else if (HAS_PCH_SPLIT(dev)) { | |
f564048e | 8526 | dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set; |
76e5a89c DV |
8527 | dev_priv->display.crtc_enable = ironlake_crtc_enable; |
8528 | dev_priv->display.crtc_disable = ironlake_crtc_disable; | |
ee7b9f93 | 8529 | dev_priv->display.off = ironlake_crtc_off; |
17638cd6 | 8530 | dev_priv->display.update_plane = ironlake_update_plane; |
f564048e | 8531 | } else { |
f564048e | 8532 | dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set; |
76e5a89c DV |
8533 | dev_priv->display.crtc_enable = i9xx_crtc_enable; |
8534 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
ee7b9f93 | 8535 | dev_priv->display.off = i9xx_crtc_off; |
17638cd6 | 8536 | dev_priv->display.update_plane = i9xx_update_plane; |
f564048e | 8537 | } |
e70236a8 | 8538 | |
e70236a8 | 8539 | /* Returns the core display clock speed */ |
25eb05fc JB |
8540 | if (IS_VALLEYVIEW(dev)) |
8541 | dev_priv->display.get_display_clock_speed = | |
8542 | valleyview_get_display_clock_speed; | |
8543 | else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev))) | |
e70236a8 JB |
8544 | dev_priv->display.get_display_clock_speed = |
8545 | i945_get_display_clock_speed; | |
8546 | else if (IS_I915G(dev)) | |
8547 | dev_priv->display.get_display_clock_speed = | |
8548 | i915_get_display_clock_speed; | |
f2b115e6 | 8549 | else if (IS_I945GM(dev) || IS_845G(dev) || IS_PINEVIEW_M(dev)) |
e70236a8 JB |
8550 | dev_priv->display.get_display_clock_speed = |
8551 | i9xx_misc_get_display_clock_speed; | |
8552 | else if (IS_I915GM(dev)) | |
8553 | dev_priv->display.get_display_clock_speed = | |
8554 | i915gm_get_display_clock_speed; | |
8555 | else if (IS_I865G(dev)) | |
8556 | dev_priv->display.get_display_clock_speed = | |
8557 | i865_get_display_clock_speed; | |
f0f8a9ce | 8558 | else if (IS_I85X(dev)) |
e70236a8 JB |
8559 | dev_priv->display.get_display_clock_speed = |
8560 | i855_get_display_clock_speed; | |
8561 | else /* 852, 830 */ | |
8562 | dev_priv->display.get_display_clock_speed = | |
8563 | i830_get_display_clock_speed; | |
8564 | ||
7f8a8569 | 8565 | if (HAS_PCH_SPLIT(dev)) { |
f00a3ddf | 8566 | if (IS_GEN5(dev)) { |
674cf967 | 8567 | dev_priv->display.fdi_link_train = ironlake_fdi_link_train; |
e0dac65e | 8568 | dev_priv->display.write_eld = ironlake_write_eld; |
1398261a | 8569 | } else if (IS_GEN6(dev)) { |
674cf967 | 8570 | dev_priv->display.fdi_link_train = gen6_fdi_link_train; |
e0dac65e | 8571 | dev_priv->display.write_eld = ironlake_write_eld; |
357555c0 JB |
8572 | } else if (IS_IVYBRIDGE(dev)) { |
8573 | /* FIXME: detect B0+ stepping and use auto training */ | |
8574 | dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train; | |
e0dac65e | 8575 | dev_priv->display.write_eld = ironlake_write_eld; |
01a415fd DV |
8576 | dev_priv->display.modeset_global_resources = |
8577 | ivb_modeset_global_resources; | |
c82e4d26 ED |
8578 | } else if (IS_HASWELL(dev)) { |
8579 | dev_priv->display.fdi_link_train = hsw_fdi_link_train; | |
83358c85 | 8580 | dev_priv->display.write_eld = haswell_write_eld; |
7f8a8569 ZW |
8581 | } else |
8582 | dev_priv->display.update_wm = NULL; | |
6067aaea | 8583 | } else if (IS_G4X(dev)) { |
e0dac65e | 8584 | dev_priv->display.write_eld = g4x_write_eld; |
e70236a8 | 8585 | } |
8c9f3aaf JB |
8586 | |
8587 | /* Default just returns -ENODEV to indicate unsupported */ | |
8588 | dev_priv->display.queue_flip = intel_default_queue_flip; | |
8589 | ||
8590 | switch (INTEL_INFO(dev)->gen) { | |
8591 | case 2: | |
8592 | dev_priv->display.queue_flip = intel_gen2_queue_flip; | |
8593 | break; | |
8594 | ||
8595 | case 3: | |
8596 | dev_priv->display.queue_flip = intel_gen3_queue_flip; | |
8597 | break; | |
8598 | ||
8599 | case 4: | |
8600 | case 5: | |
8601 | dev_priv->display.queue_flip = intel_gen4_queue_flip; | |
8602 | break; | |
8603 | ||
8604 | case 6: | |
8605 | dev_priv->display.queue_flip = intel_gen6_queue_flip; | |
8606 | break; | |
7c9017e5 JB |
8607 | case 7: |
8608 | dev_priv->display.queue_flip = intel_gen7_queue_flip; | |
8609 | break; | |
8c9f3aaf | 8610 | } |
e70236a8 JB |
8611 | } |
8612 | ||
b690e96c JB |
8613 | /* |
8614 | * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend, | |
8615 | * resume, or other times. This quirk makes sure that's the case for | |
8616 | * affected systems. | |
8617 | */ | |
0206e353 | 8618 | static void quirk_pipea_force(struct drm_device *dev) |
b690e96c JB |
8619 | { |
8620 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8621 | ||
8622 | dev_priv->quirks |= QUIRK_PIPEA_FORCE; | |
bc0daf48 | 8623 | DRM_INFO("applying pipe a force quirk\n"); |
b690e96c JB |
8624 | } |
8625 | ||
435793df KP |
8626 | /* |
8627 | * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason | |
8628 | */ | |
8629 | static void quirk_ssc_force_disable(struct drm_device *dev) | |
8630 | { | |
8631 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8632 | dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE; | |
bc0daf48 | 8633 | DRM_INFO("applying lvds SSC disable quirk\n"); |
435793df KP |
8634 | } |
8635 | ||
4dca20ef | 8636 | /* |
5a15ab5b CE |
8637 | * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight |
8638 | * brightness value | |
4dca20ef CE |
8639 | */ |
8640 | static void quirk_invert_brightness(struct drm_device *dev) | |
8641 | { | |
8642 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8643 | dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS; | |
bc0daf48 | 8644 | DRM_INFO("applying inverted panel brightness quirk\n"); |
435793df KP |
8645 | } |
8646 | ||
b690e96c JB |
8647 | struct intel_quirk { |
8648 | int device; | |
8649 | int subsystem_vendor; | |
8650 | int subsystem_device; | |
8651 | void (*hook)(struct drm_device *dev); | |
8652 | }; | |
8653 | ||
5f85f176 EE |
8654 | /* For systems that don't have a meaningful PCI subdevice/subvendor ID */ |
8655 | struct intel_dmi_quirk { | |
8656 | void (*hook)(struct drm_device *dev); | |
8657 | const struct dmi_system_id (*dmi_id_list)[]; | |
8658 | }; | |
8659 | ||
8660 | static int intel_dmi_reverse_brightness(const struct dmi_system_id *id) | |
8661 | { | |
8662 | DRM_INFO("Backlight polarity reversed on %s\n", id->ident); | |
8663 | return 1; | |
8664 | } | |
8665 | ||
8666 | static const struct intel_dmi_quirk intel_dmi_quirks[] = { | |
8667 | { | |
8668 | .dmi_id_list = &(const struct dmi_system_id[]) { | |
8669 | { | |
8670 | .callback = intel_dmi_reverse_brightness, | |
8671 | .ident = "NCR Corporation", | |
8672 | .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"), | |
8673 | DMI_MATCH(DMI_PRODUCT_NAME, ""), | |
8674 | }, | |
8675 | }, | |
8676 | { } /* terminating entry */ | |
8677 | }, | |
8678 | .hook = quirk_invert_brightness, | |
8679 | }, | |
8680 | }; | |
8681 | ||
c43b5634 | 8682 | static struct intel_quirk intel_quirks[] = { |
b690e96c | 8683 | /* HP Mini needs pipe A force quirk (LP: #322104) */ |
0206e353 | 8684 | { 0x27ae, 0x103c, 0x361a, quirk_pipea_force }, |
b690e96c | 8685 | |
b690e96c JB |
8686 | /* Toshiba Protege R-205, S-209 needs pipe A force quirk */ |
8687 | { 0x2592, 0x1179, 0x0001, quirk_pipea_force }, | |
8688 | ||
b690e96c JB |
8689 | /* ThinkPad T60 needs pipe A force quirk (bug #16494) */ |
8690 | { 0x2782, 0x17aa, 0x201a, quirk_pipea_force }, | |
8691 | ||
ccd0d36e | 8692 | /* 830/845 need to leave pipe A & dpll A up */ |
b690e96c | 8693 | { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, |
dcdaed6e | 8694 | { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, |
435793df KP |
8695 | |
8696 | /* Lenovo U160 cannot use SSC on LVDS */ | |
8697 | { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable }, | |
070d329a MAS |
8698 | |
8699 | /* Sony Vaio Y cannot use SSC on LVDS */ | |
8700 | { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable }, | |
5a15ab5b CE |
8701 | |
8702 | /* Acer Aspire 5734Z must invert backlight brightness */ | |
8703 | { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness }, | |
b690e96c JB |
8704 | }; |
8705 | ||
8706 | static void intel_init_quirks(struct drm_device *dev) | |
8707 | { | |
8708 | struct pci_dev *d = dev->pdev; | |
8709 | int i; | |
8710 | ||
8711 | for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { | |
8712 | struct intel_quirk *q = &intel_quirks[i]; | |
8713 | ||
8714 | if (d->device == q->device && | |
8715 | (d->subsystem_vendor == q->subsystem_vendor || | |
8716 | q->subsystem_vendor == PCI_ANY_ID) && | |
8717 | (d->subsystem_device == q->subsystem_device || | |
8718 | q->subsystem_device == PCI_ANY_ID)) | |
8719 | q->hook(dev); | |
8720 | } | |
5f85f176 EE |
8721 | for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) { |
8722 | if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0) | |
8723 | intel_dmi_quirks[i].hook(dev); | |
8724 | } | |
b690e96c JB |
8725 | } |
8726 | ||
9cce37f4 JB |
8727 | /* Disable the VGA plane that we never use */ |
8728 | static void i915_disable_vga(struct drm_device *dev) | |
8729 | { | |
8730 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8731 | u8 sr1; | |
8732 | u32 vga_reg; | |
8733 | ||
8734 | if (HAS_PCH_SPLIT(dev)) | |
8735 | vga_reg = CPU_VGACNTRL; | |
8736 | else | |
8737 | vga_reg = VGACNTRL; | |
8738 | ||
8739 | vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO); | |
3fdcf431 | 8740 | outb(SR01, VGA_SR_INDEX); |
9cce37f4 JB |
8741 | sr1 = inb(VGA_SR_DATA); |
8742 | outb(sr1 | 1<<5, VGA_SR_DATA); | |
8743 | vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); | |
8744 | udelay(300); | |
8745 | ||
8746 | I915_WRITE(vga_reg, VGA_DISP_DISABLE); | |
8747 | POSTING_READ(vga_reg); | |
8748 | } | |
8749 | ||
f817586c DV |
8750 | void intel_modeset_init_hw(struct drm_device *dev) |
8751 | { | |
0232e927 ED |
8752 | /* We attempt to init the necessary power wells early in the initialization |
8753 | * time, so the subsystems that expect power to be enabled can work. | |
8754 | */ | |
8755 | intel_init_power_wells(dev); | |
8756 | ||
a8f78b58 ED |
8757 | intel_prepare_ddi(dev); |
8758 | ||
f817586c DV |
8759 | intel_init_clock_gating(dev); |
8760 | ||
79f5b2c7 | 8761 | mutex_lock(&dev->struct_mutex); |
8090c6b9 | 8762 | intel_enable_gt_powersave(dev); |
79f5b2c7 | 8763 | mutex_unlock(&dev->struct_mutex); |
f817586c DV |
8764 | } |
8765 | ||
79e53945 JB |
8766 | void intel_modeset_init(struct drm_device *dev) |
8767 | { | |
652c393a | 8768 | struct drm_i915_private *dev_priv = dev->dev_private; |
b840d907 | 8769 | int i, ret; |
79e53945 JB |
8770 | |
8771 | drm_mode_config_init(dev); | |
8772 | ||
8773 | dev->mode_config.min_width = 0; | |
8774 | dev->mode_config.min_height = 0; | |
8775 | ||
019d96cb DA |
8776 | dev->mode_config.preferred_depth = 24; |
8777 | dev->mode_config.prefer_shadow = 1; | |
8778 | ||
e6ecefaa | 8779 | dev->mode_config.funcs = &intel_mode_funcs; |
79e53945 | 8780 | |
b690e96c JB |
8781 | intel_init_quirks(dev); |
8782 | ||
1fa61106 ED |
8783 | intel_init_pm(dev); |
8784 | ||
e70236a8 JB |
8785 | intel_init_display(dev); |
8786 | ||
a6c45cf0 CW |
8787 | if (IS_GEN2(dev)) { |
8788 | dev->mode_config.max_width = 2048; | |
8789 | dev->mode_config.max_height = 2048; | |
8790 | } else if (IS_GEN3(dev)) { | |
5e4d6fa7 KP |
8791 | dev->mode_config.max_width = 4096; |
8792 | dev->mode_config.max_height = 4096; | |
79e53945 | 8793 | } else { |
a6c45cf0 CW |
8794 | dev->mode_config.max_width = 8192; |
8795 | dev->mode_config.max_height = 8192; | |
79e53945 | 8796 | } |
dd2757f8 | 8797 | dev->mode_config.fb_base = dev_priv->mm.gtt_base_addr; |
79e53945 | 8798 | |
28c97730 | 8799 | DRM_DEBUG_KMS("%d display pipe%s available.\n", |
a3524f1b | 8800 | dev_priv->num_pipe, dev_priv->num_pipe > 1 ? "s" : ""); |
79e53945 | 8801 | |
a3524f1b | 8802 | for (i = 0; i < dev_priv->num_pipe; i++) { |
79e53945 | 8803 | intel_crtc_init(dev, i); |
00c2064b JB |
8804 | ret = intel_plane_init(dev, i); |
8805 | if (ret) | |
8806 | DRM_DEBUG_KMS("plane %d init failed: %d\n", i, ret); | |
79e53945 JB |
8807 | } |
8808 | ||
79f689aa | 8809 | intel_cpu_pll_init(dev); |
ee7b9f93 JB |
8810 | intel_pch_pll_init(dev); |
8811 | ||
9cce37f4 JB |
8812 | /* Just disable it once at startup */ |
8813 | i915_disable_vga(dev); | |
79e53945 | 8814 | intel_setup_outputs(dev); |
2c7111db CW |
8815 | } |
8816 | ||
24929352 DV |
8817 | static void |
8818 | intel_connector_break_all_links(struct intel_connector *connector) | |
8819 | { | |
8820 | connector->base.dpms = DRM_MODE_DPMS_OFF; | |
8821 | connector->base.encoder = NULL; | |
8822 | connector->encoder->connectors_active = false; | |
8823 | connector->encoder->base.crtc = NULL; | |
8824 | } | |
8825 | ||
7fad798e DV |
8826 | static void intel_enable_pipe_a(struct drm_device *dev) |
8827 | { | |
8828 | struct intel_connector *connector; | |
8829 | struct drm_connector *crt = NULL; | |
8830 | struct intel_load_detect_pipe load_detect_temp; | |
8831 | ||
8832 | /* We can't just switch on the pipe A, we need to set things up with a | |
8833 | * proper mode and output configuration. As a gross hack, enable pipe A | |
8834 | * by enabling the load detect pipe once. */ | |
8835 | list_for_each_entry(connector, | |
8836 | &dev->mode_config.connector_list, | |
8837 | base.head) { | |
8838 | if (connector->encoder->type == INTEL_OUTPUT_ANALOG) { | |
8839 | crt = &connector->base; | |
8840 | break; | |
8841 | } | |
8842 | } | |
8843 | ||
8844 | if (!crt) | |
8845 | return; | |
8846 | ||
8847 | if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp)) | |
8848 | intel_release_load_detect_pipe(crt, &load_detect_temp); | |
8849 | ||
652c393a | 8850 | |
7fad798e DV |
8851 | } |
8852 | ||
fa555837 DV |
8853 | static bool |
8854 | intel_check_plane_mapping(struct intel_crtc *crtc) | |
8855 | { | |
8856 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; | |
8857 | u32 reg, val; | |
8858 | ||
8859 | if (dev_priv->num_pipe == 1) | |
8860 | return true; | |
8861 | ||
8862 | reg = DSPCNTR(!crtc->plane); | |
8863 | val = I915_READ(reg); | |
8864 | ||
8865 | if ((val & DISPLAY_PLANE_ENABLE) && | |
8866 | (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe)) | |
8867 | return false; | |
8868 | ||
8869 | return true; | |
8870 | } | |
8871 | ||
24929352 DV |
8872 | static void intel_sanitize_crtc(struct intel_crtc *crtc) |
8873 | { | |
8874 | struct drm_device *dev = crtc->base.dev; | |
8875 | struct drm_i915_private *dev_priv = dev->dev_private; | |
fa555837 | 8876 | u32 reg; |
24929352 | 8877 | |
24929352 | 8878 | /* Clear any frame start delays used for debugging left by the BIOS */ |
702e7a56 | 8879 | reg = PIPECONF(crtc->cpu_transcoder); |
24929352 DV |
8880 | I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK); |
8881 | ||
8882 | /* We need to sanitize the plane -> pipe mapping first because this will | |
fa555837 DV |
8883 | * disable the crtc (and hence change the state) if it is wrong. Note |
8884 | * that gen4+ has a fixed plane -> pipe mapping. */ | |
8885 | if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) { | |
24929352 DV |
8886 | struct intel_connector *connector; |
8887 | bool plane; | |
8888 | ||
24929352 DV |
8889 | DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n", |
8890 | crtc->base.base.id); | |
8891 | ||
8892 | /* Pipe has the wrong plane attached and the plane is active. | |
8893 | * Temporarily change the plane mapping and disable everything | |
8894 | * ... */ | |
8895 | plane = crtc->plane; | |
8896 | crtc->plane = !plane; | |
8897 | dev_priv->display.crtc_disable(&crtc->base); | |
8898 | crtc->plane = plane; | |
8899 | ||
8900 | /* ... and break all links. */ | |
8901 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
8902 | base.head) { | |
8903 | if (connector->encoder->base.crtc != &crtc->base) | |
8904 | continue; | |
8905 | ||
8906 | intel_connector_break_all_links(connector); | |
8907 | } | |
8908 | ||
8909 | WARN_ON(crtc->active); | |
8910 | crtc->base.enabled = false; | |
8911 | } | |
24929352 | 8912 | |
7fad798e DV |
8913 | if (dev_priv->quirks & QUIRK_PIPEA_FORCE && |
8914 | crtc->pipe == PIPE_A && !crtc->active) { | |
8915 | /* BIOS forgot to enable pipe A, this mostly happens after | |
8916 | * resume. Force-enable the pipe to fix this, the update_dpms | |
8917 | * call below we restore the pipe to the right state, but leave | |
8918 | * the required bits on. */ | |
8919 | intel_enable_pipe_a(dev); | |
8920 | } | |
8921 | ||
24929352 DV |
8922 | /* Adjust the state of the output pipe according to whether we |
8923 | * have active connectors/encoders. */ | |
8924 | intel_crtc_update_dpms(&crtc->base); | |
8925 | ||
8926 | if (crtc->active != crtc->base.enabled) { | |
8927 | struct intel_encoder *encoder; | |
8928 | ||
8929 | /* This can happen either due to bugs in the get_hw_state | |
8930 | * functions or because the pipe is force-enabled due to the | |
8931 | * pipe A quirk. */ | |
8932 | DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n", | |
8933 | crtc->base.base.id, | |
8934 | crtc->base.enabled ? "enabled" : "disabled", | |
8935 | crtc->active ? "enabled" : "disabled"); | |
8936 | ||
8937 | crtc->base.enabled = crtc->active; | |
8938 | ||
8939 | /* Because we only establish the connector -> encoder -> | |
8940 | * crtc links if something is active, this means the | |
8941 | * crtc is now deactivated. Break the links. connector | |
8942 | * -> encoder links are only establish when things are | |
8943 | * actually up, hence no need to break them. */ | |
8944 | WARN_ON(crtc->active); | |
8945 | ||
8946 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) { | |
8947 | WARN_ON(encoder->connectors_active); | |
8948 | encoder->base.crtc = NULL; | |
8949 | } | |
8950 | } | |
8951 | } | |
8952 | ||
8953 | static void intel_sanitize_encoder(struct intel_encoder *encoder) | |
8954 | { | |
8955 | struct intel_connector *connector; | |
8956 | struct drm_device *dev = encoder->base.dev; | |
8957 | ||
8958 | /* We need to check both for a crtc link (meaning that the | |
8959 | * encoder is active and trying to read from a pipe) and the | |
8960 | * pipe itself being active. */ | |
8961 | bool has_active_crtc = encoder->base.crtc && | |
8962 | to_intel_crtc(encoder->base.crtc)->active; | |
8963 | ||
8964 | if (encoder->connectors_active && !has_active_crtc) { | |
8965 | DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n", | |
8966 | encoder->base.base.id, | |
8967 | drm_get_encoder_name(&encoder->base)); | |
8968 | ||
8969 | /* Connector is active, but has no active pipe. This is | |
8970 | * fallout from our resume register restoring. Disable | |
8971 | * the encoder manually again. */ | |
8972 | if (encoder->base.crtc) { | |
8973 | DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n", | |
8974 | encoder->base.base.id, | |
8975 | drm_get_encoder_name(&encoder->base)); | |
8976 | encoder->disable(encoder); | |
8977 | } | |
8978 | ||
8979 | /* Inconsistent output/port/pipe state happens presumably due to | |
8980 | * a bug in one of the get_hw_state functions. Or someplace else | |
8981 | * in our code, like the register restore mess on resume. Clamp | |
8982 | * things to off as a safer default. */ | |
8983 | list_for_each_entry(connector, | |
8984 | &dev->mode_config.connector_list, | |
8985 | base.head) { | |
8986 | if (connector->encoder != encoder) | |
8987 | continue; | |
8988 | ||
8989 | intel_connector_break_all_links(connector); | |
8990 | } | |
8991 | } | |
8992 | /* Enabled encoders without active connectors will be fixed in | |
8993 | * the crtc fixup. */ | |
8994 | } | |
8995 | ||
8996 | /* Scan out the current hw modeset state, sanitizes it and maps it into the drm | |
8997 | * and i915 state tracking structures. */ | |
45e2b5f6 DV |
8998 | void intel_modeset_setup_hw_state(struct drm_device *dev, |
8999 | bool force_restore) | |
24929352 DV |
9000 | { |
9001 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9002 | enum pipe pipe; | |
9003 | u32 tmp; | |
9004 | struct intel_crtc *crtc; | |
9005 | struct intel_encoder *encoder; | |
9006 | struct intel_connector *connector; | |
9007 | ||
e28d54cb PZ |
9008 | if (IS_HASWELL(dev)) { |
9009 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP)); | |
9010 | ||
9011 | if (tmp & TRANS_DDI_FUNC_ENABLE) { | |
9012 | switch (tmp & TRANS_DDI_EDP_INPUT_MASK) { | |
9013 | case TRANS_DDI_EDP_INPUT_A_ON: | |
9014 | case TRANS_DDI_EDP_INPUT_A_ONOFF: | |
9015 | pipe = PIPE_A; | |
9016 | break; | |
9017 | case TRANS_DDI_EDP_INPUT_B_ONOFF: | |
9018 | pipe = PIPE_B; | |
9019 | break; | |
9020 | case TRANS_DDI_EDP_INPUT_C_ONOFF: | |
9021 | pipe = PIPE_C; | |
9022 | break; | |
9023 | } | |
9024 | ||
9025 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); | |
9026 | crtc->cpu_transcoder = TRANSCODER_EDP; | |
9027 | ||
9028 | DRM_DEBUG_KMS("Pipe %c using transcoder EDP\n", | |
9029 | pipe_name(pipe)); | |
9030 | } | |
9031 | } | |
9032 | ||
24929352 DV |
9033 | for_each_pipe(pipe) { |
9034 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); | |
9035 | ||
702e7a56 | 9036 | tmp = I915_READ(PIPECONF(crtc->cpu_transcoder)); |
24929352 DV |
9037 | if (tmp & PIPECONF_ENABLE) |
9038 | crtc->active = true; | |
9039 | else | |
9040 | crtc->active = false; | |
9041 | ||
9042 | crtc->base.enabled = crtc->active; | |
9043 | ||
9044 | DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n", | |
9045 | crtc->base.base.id, | |
9046 | crtc->active ? "enabled" : "disabled"); | |
9047 | } | |
9048 | ||
6441ab5f PZ |
9049 | if (IS_HASWELL(dev)) |
9050 | intel_ddi_setup_hw_pll_state(dev); | |
9051 | ||
24929352 DV |
9052 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
9053 | base.head) { | |
9054 | pipe = 0; | |
9055 | ||
9056 | if (encoder->get_hw_state(encoder, &pipe)) { | |
9057 | encoder->base.crtc = | |
9058 | dev_priv->pipe_to_crtc_mapping[pipe]; | |
9059 | } else { | |
9060 | encoder->base.crtc = NULL; | |
9061 | } | |
9062 | ||
9063 | encoder->connectors_active = false; | |
9064 | DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe=%i\n", | |
9065 | encoder->base.base.id, | |
9066 | drm_get_encoder_name(&encoder->base), | |
9067 | encoder->base.crtc ? "enabled" : "disabled", | |
9068 | pipe); | |
9069 | } | |
9070 | ||
9071 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
9072 | base.head) { | |
9073 | if (connector->get_hw_state(connector)) { | |
9074 | connector->base.dpms = DRM_MODE_DPMS_ON; | |
9075 | connector->encoder->connectors_active = true; | |
9076 | connector->base.encoder = &connector->encoder->base; | |
9077 | } else { | |
9078 | connector->base.dpms = DRM_MODE_DPMS_OFF; | |
9079 | connector->base.encoder = NULL; | |
9080 | } | |
9081 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n", | |
9082 | connector->base.base.id, | |
9083 | drm_get_connector_name(&connector->base), | |
9084 | connector->base.encoder ? "enabled" : "disabled"); | |
9085 | } | |
9086 | ||
9087 | /* HW state is read out, now we need to sanitize this mess. */ | |
9088 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
9089 | base.head) { | |
9090 | intel_sanitize_encoder(encoder); | |
9091 | } | |
9092 | ||
9093 | for_each_pipe(pipe) { | |
9094 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); | |
9095 | intel_sanitize_crtc(crtc); | |
9096 | } | |
9a935856 | 9097 | |
45e2b5f6 DV |
9098 | if (force_restore) { |
9099 | for_each_pipe(pipe) { | |
9100 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); | |
9101 | intel_set_mode(&crtc->base, &crtc->base.mode, | |
9102 | crtc->base.x, crtc->base.y, crtc->base.fb); | |
9103 | } | |
9104 | } else { | |
9105 | intel_modeset_update_staged_output_state(dev); | |
9106 | } | |
8af6cf88 DV |
9107 | |
9108 | intel_modeset_check_state(dev); | |
2e938892 DV |
9109 | |
9110 | drm_mode_config_reset(dev); | |
2c7111db CW |
9111 | } |
9112 | ||
9113 | void intel_modeset_gem_init(struct drm_device *dev) | |
9114 | { | |
1833b134 | 9115 | intel_modeset_init_hw(dev); |
02e792fb DV |
9116 | |
9117 | intel_setup_overlay(dev); | |
24929352 | 9118 | |
45e2b5f6 | 9119 | intel_modeset_setup_hw_state(dev, false); |
79e53945 JB |
9120 | } |
9121 | ||
9122 | void intel_modeset_cleanup(struct drm_device *dev) | |
9123 | { | |
652c393a JB |
9124 | struct drm_i915_private *dev_priv = dev->dev_private; |
9125 | struct drm_crtc *crtc; | |
9126 | struct intel_crtc *intel_crtc; | |
9127 | ||
f87ea761 | 9128 | drm_kms_helper_poll_fini(dev); |
652c393a JB |
9129 | mutex_lock(&dev->struct_mutex); |
9130 | ||
723bfd70 JB |
9131 | intel_unregister_dsm_handler(); |
9132 | ||
9133 | ||
652c393a JB |
9134 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
9135 | /* Skip inactive CRTCs */ | |
9136 | if (!crtc->fb) | |
9137 | continue; | |
9138 | ||
9139 | intel_crtc = to_intel_crtc(crtc); | |
3dec0095 | 9140 | intel_increase_pllclock(crtc); |
652c393a JB |
9141 | } |
9142 | ||
973d04f9 | 9143 | intel_disable_fbc(dev); |
e70236a8 | 9144 | |
8090c6b9 | 9145 | intel_disable_gt_powersave(dev); |
0cdab21f | 9146 | |
930ebb46 DV |
9147 | ironlake_teardown_rc6(dev); |
9148 | ||
57f350b6 JB |
9149 | if (IS_VALLEYVIEW(dev)) |
9150 | vlv_init_dpio(dev); | |
9151 | ||
69341a5e KH |
9152 | mutex_unlock(&dev->struct_mutex); |
9153 | ||
6c0d9350 DV |
9154 | /* Disable the irq before mode object teardown, for the irq might |
9155 | * enqueue unpin/hotplug work. */ | |
9156 | drm_irq_uninstall(dev); | |
9157 | cancel_work_sync(&dev_priv->hotplug_work); | |
c6a828d3 | 9158 | cancel_work_sync(&dev_priv->rps.work); |
6c0d9350 | 9159 | |
1630fe75 CW |
9160 | /* flush any delayed tasks or pending work */ |
9161 | flush_scheduled_work(); | |
9162 | ||
79e53945 JB |
9163 | drm_mode_config_cleanup(dev); |
9164 | } | |
9165 | ||
f1c79df3 ZW |
9166 | /* |
9167 | * Return which encoder is currently attached for connector. | |
9168 | */ | |
df0e9248 | 9169 | struct drm_encoder *intel_best_encoder(struct drm_connector *connector) |
79e53945 | 9170 | { |
df0e9248 CW |
9171 | return &intel_attached_encoder(connector)->base; |
9172 | } | |
f1c79df3 | 9173 | |
df0e9248 CW |
9174 | void intel_connector_attach_encoder(struct intel_connector *connector, |
9175 | struct intel_encoder *encoder) | |
9176 | { | |
9177 | connector->encoder = encoder; | |
9178 | drm_mode_connector_attach_encoder(&connector->base, | |
9179 | &encoder->base); | |
79e53945 | 9180 | } |
28d52043 DA |
9181 | |
9182 | /* | |
9183 | * set vga decode state - true == enable VGA decode | |
9184 | */ | |
9185 | int intel_modeset_vga_set_state(struct drm_device *dev, bool state) | |
9186 | { | |
9187 | struct drm_i915_private *dev_priv = dev->dev_private; | |
9188 | u16 gmch_ctrl; | |
9189 | ||
9190 | pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl); | |
9191 | if (state) | |
9192 | gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE; | |
9193 | else | |
9194 | gmch_ctrl |= INTEL_GMCH_VGA_DISABLE; | |
9195 | pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl); | |
9196 | return 0; | |
9197 | } | |
c4a1d9e4 CW |
9198 | |
9199 | #ifdef CONFIG_DEBUG_FS | |
9200 | #include <linux/seq_file.h> | |
9201 | ||
9202 | struct intel_display_error_state { | |
9203 | struct intel_cursor_error_state { | |
9204 | u32 control; | |
9205 | u32 position; | |
9206 | u32 base; | |
9207 | u32 size; | |
52331309 | 9208 | } cursor[I915_MAX_PIPES]; |
c4a1d9e4 CW |
9209 | |
9210 | struct intel_pipe_error_state { | |
9211 | u32 conf; | |
9212 | u32 source; | |
9213 | ||
9214 | u32 htotal; | |
9215 | u32 hblank; | |
9216 | u32 hsync; | |
9217 | u32 vtotal; | |
9218 | u32 vblank; | |
9219 | u32 vsync; | |
52331309 | 9220 | } pipe[I915_MAX_PIPES]; |
c4a1d9e4 CW |
9221 | |
9222 | struct intel_plane_error_state { | |
9223 | u32 control; | |
9224 | u32 stride; | |
9225 | u32 size; | |
9226 | u32 pos; | |
9227 | u32 addr; | |
9228 | u32 surface; | |
9229 | u32 tile_offset; | |
52331309 | 9230 | } plane[I915_MAX_PIPES]; |
c4a1d9e4 CW |
9231 | }; |
9232 | ||
9233 | struct intel_display_error_state * | |
9234 | intel_display_capture_error_state(struct drm_device *dev) | |
9235 | { | |
0206e353 | 9236 | drm_i915_private_t *dev_priv = dev->dev_private; |
c4a1d9e4 | 9237 | struct intel_display_error_state *error; |
702e7a56 | 9238 | enum transcoder cpu_transcoder; |
c4a1d9e4 CW |
9239 | int i; |
9240 | ||
9241 | error = kmalloc(sizeof(*error), GFP_ATOMIC); | |
9242 | if (error == NULL) | |
9243 | return NULL; | |
9244 | ||
52331309 | 9245 | for_each_pipe(i) { |
702e7a56 PZ |
9246 | cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, i); |
9247 | ||
c4a1d9e4 CW |
9248 | error->cursor[i].control = I915_READ(CURCNTR(i)); |
9249 | error->cursor[i].position = I915_READ(CURPOS(i)); | |
9250 | error->cursor[i].base = I915_READ(CURBASE(i)); | |
9251 | ||
9252 | error->plane[i].control = I915_READ(DSPCNTR(i)); | |
9253 | error->plane[i].stride = I915_READ(DSPSTRIDE(i)); | |
9254 | error->plane[i].size = I915_READ(DSPSIZE(i)); | |
0206e353 | 9255 | error->plane[i].pos = I915_READ(DSPPOS(i)); |
c4a1d9e4 CW |
9256 | error->plane[i].addr = I915_READ(DSPADDR(i)); |
9257 | if (INTEL_INFO(dev)->gen >= 4) { | |
9258 | error->plane[i].surface = I915_READ(DSPSURF(i)); | |
9259 | error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i)); | |
9260 | } | |
9261 | ||
702e7a56 | 9262 | error->pipe[i].conf = I915_READ(PIPECONF(cpu_transcoder)); |
c4a1d9e4 | 9263 | error->pipe[i].source = I915_READ(PIPESRC(i)); |
fe2b8f9d PZ |
9264 | error->pipe[i].htotal = I915_READ(HTOTAL(cpu_transcoder)); |
9265 | error->pipe[i].hblank = I915_READ(HBLANK(cpu_transcoder)); | |
9266 | error->pipe[i].hsync = I915_READ(HSYNC(cpu_transcoder)); | |
9267 | error->pipe[i].vtotal = I915_READ(VTOTAL(cpu_transcoder)); | |
9268 | error->pipe[i].vblank = I915_READ(VBLANK(cpu_transcoder)); | |
9269 | error->pipe[i].vsync = I915_READ(VSYNC(cpu_transcoder)); | |
c4a1d9e4 CW |
9270 | } |
9271 | ||
9272 | return error; | |
9273 | } | |
9274 | ||
9275 | void | |
9276 | intel_display_print_error_state(struct seq_file *m, | |
9277 | struct drm_device *dev, | |
9278 | struct intel_display_error_state *error) | |
9279 | { | |
52331309 | 9280 | drm_i915_private_t *dev_priv = dev->dev_private; |
c4a1d9e4 CW |
9281 | int i; |
9282 | ||
52331309 DL |
9283 | seq_printf(m, "Num Pipes: %d\n", dev_priv->num_pipe); |
9284 | for_each_pipe(i) { | |
c4a1d9e4 CW |
9285 | seq_printf(m, "Pipe [%d]:\n", i); |
9286 | seq_printf(m, " CONF: %08x\n", error->pipe[i].conf); | |
9287 | seq_printf(m, " SRC: %08x\n", error->pipe[i].source); | |
9288 | seq_printf(m, " HTOTAL: %08x\n", error->pipe[i].htotal); | |
9289 | seq_printf(m, " HBLANK: %08x\n", error->pipe[i].hblank); | |
9290 | seq_printf(m, " HSYNC: %08x\n", error->pipe[i].hsync); | |
9291 | seq_printf(m, " VTOTAL: %08x\n", error->pipe[i].vtotal); | |
9292 | seq_printf(m, " VBLANK: %08x\n", error->pipe[i].vblank); | |
9293 | seq_printf(m, " VSYNC: %08x\n", error->pipe[i].vsync); | |
9294 | ||
9295 | seq_printf(m, "Plane [%d]:\n", i); | |
9296 | seq_printf(m, " CNTR: %08x\n", error->plane[i].control); | |
9297 | seq_printf(m, " STRIDE: %08x\n", error->plane[i].stride); | |
9298 | seq_printf(m, " SIZE: %08x\n", error->plane[i].size); | |
9299 | seq_printf(m, " POS: %08x\n", error->plane[i].pos); | |
9300 | seq_printf(m, " ADDR: %08x\n", error->plane[i].addr); | |
9301 | if (INTEL_INFO(dev)->gen >= 4) { | |
9302 | seq_printf(m, " SURF: %08x\n", error->plane[i].surface); | |
9303 | seq_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset); | |
9304 | } | |
9305 | ||
9306 | seq_printf(m, "Cursor [%d]:\n", i); | |
9307 | seq_printf(m, " CNTR: %08x\n", error->cursor[i].control); | |
9308 | seq_printf(m, " POS: %08x\n", error->cursor[i].position); | |
9309 | seq_printf(m, " BASE: %08x\n", error->cursor[i].base); | |
9310 | } | |
9311 | } | |
9312 | #endif |