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79e53945 JB |
1 | /* |
2 | * Copyright © 2006-2007 Intel Corporation | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice (including the next | |
12 | * paragraph) shall be included in all copies or substantial portions of the | |
13 | * Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
21 | * DEALINGS IN THE SOFTWARE. | |
22 | * | |
23 | * Authors: | |
24 | * Eric Anholt <eric@anholt.net> | |
25 | */ | |
26 | ||
618563e3 | 27 | #include <linux/dmi.h> |
c1c7af60 JB |
28 | #include <linux/module.h> |
29 | #include <linux/input.h> | |
79e53945 | 30 | #include <linux/i2c.h> |
7662c8bd | 31 | #include <linux/kernel.h> |
5a0e3ad6 | 32 | #include <linux/slab.h> |
9cce37f4 | 33 | #include <linux/vgaarb.h> |
e0dac65e | 34 | #include <drm/drm_edid.h> |
79e53945 JB |
35 | #include "drmP.h" |
36 | #include "intel_drv.h" | |
37 | #include "i915_drm.h" | |
38 | #include "i915_drv.h" | |
e5510fac | 39 | #include "i915_trace.h" |
ab2c0672 | 40 | #include "drm_dp_helper.h" |
79e53945 | 41 | #include "drm_crtc_helper.h" |
c0f372b3 | 42 | #include <linux/dma_remapping.h> |
79e53945 | 43 | |
32f9d658 ZW |
44 | #define HAS_eDP (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) |
45 | ||
0206e353 | 46 | bool intel_pipe_has_type(struct drm_crtc *crtc, int type); |
3dec0095 | 47 | static void intel_increase_pllclock(struct drm_crtc *crtc); |
6b383a7f | 48 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on); |
79e53945 JB |
49 | |
50 | typedef struct { | |
0206e353 AJ |
51 | /* given values */ |
52 | int n; | |
53 | int m1, m2; | |
54 | int p1, p2; | |
55 | /* derived values */ | |
56 | int dot; | |
57 | int vco; | |
58 | int m; | |
59 | int p; | |
79e53945 JB |
60 | } intel_clock_t; |
61 | ||
62 | typedef struct { | |
0206e353 | 63 | int min, max; |
79e53945 JB |
64 | } intel_range_t; |
65 | ||
66 | typedef struct { | |
0206e353 AJ |
67 | int dot_limit; |
68 | int p2_slow, p2_fast; | |
79e53945 JB |
69 | } intel_p2_t; |
70 | ||
71 | #define INTEL_P2_NUM 2 | |
d4906093 ML |
72 | typedef struct intel_limit intel_limit_t; |
73 | struct intel_limit { | |
0206e353 AJ |
74 | intel_range_t dot, vco, n, m, m1, m2, p, p1; |
75 | intel_p2_t p2; | |
76 | bool (* find_pll)(const intel_limit_t *, struct drm_crtc *, | |
cec2f356 | 77 | int, int, intel_clock_t *, intel_clock_t *); |
d4906093 | 78 | }; |
79e53945 | 79 | |
2377b741 JB |
80 | /* FDI */ |
81 | #define IRONLAKE_FDI_FREQ 2700000 /* in kHz for mode->clock */ | |
82 | ||
d4906093 ML |
83 | static bool |
84 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
85 | int target, int refclk, intel_clock_t *match_clock, |
86 | intel_clock_t *best_clock); | |
d4906093 ML |
87 | static bool |
88 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
89 | int target, int refclk, intel_clock_t *match_clock, |
90 | intel_clock_t *best_clock); | |
79e53945 | 91 | |
a4fc5ed6 KP |
92 | static bool |
93 | intel_find_pll_g4x_dp(const intel_limit_t *, struct drm_crtc *crtc, | |
cec2f356 SP |
94 | int target, int refclk, intel_clock_t *match_clock, |
95 | intel_clock_t *best_clock); | |
5eb08b69 | 96 | static bool |
f2b115e6 | 97 | intel_find_pll_ironlake_dp(const intel_limit_t *, struct drm_crtc *crtc, |
cec2f356 SP |
98 | int target, int refclk, intel_clock_t *match_clock, |
99 | intel_clock_t *best_clock); | |
a4fc5ed6 | 100 | |
a0c4da24 JB |
101 | static bool |
102 | intel_vlv_find_best_pll(const intel_limit_t *limit, struct drm_crtc *crtc, | |
103 | int target, int refclk, intel_clock_t *match_clock, | |
104 | intel_clock_t *best_clock); | |
105 | ||
021357ac CW |
106 | static inline u32 /* units of 100MHz */ |
107 | intel_fdi_link_freq(struct drm_device *dev) | |
108 | { | |
8b99e68c CW |
109 | if (IS_GEN5(dev)) { |
110 | struct drm_i915_private *dev_priv = dev->dev_private; | |
111 | return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2; | |
112 | } else | |
113 | return 27; | |
021357ac CW |
114 | } |
115 | ||
e4b36699 | 116 | static const intel_limit_t intel_limits_i8xx_dvo = { |
0206e353 AJ |
117 | .dot = { .min = 25000, .max = 350000 }, |
118 | .vco = { .min = 930000, .max = 1400000 }, | |
119 | .n = { .min = 3, .max = 16 }, | |
120 | .m = { .min = 96, .max = 140 }, | |
121 | .m1 = { .min = 18, .max = 26 }, | |
122 | .m2 = { .min = 6, .max = 16 }, | |
123 | .p = { .min = 4, .max = 128 }, | |
124 | .p1 = { .min = 2, .max = 33 }, | |
273e27ca EA |
125 | .p2 = { .dot_limit = 165000, |
126 | .p2_slow = 4, .p2_fast = 2 }, | |
d4906093 | 127 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
128 | }; |
129 | ||
130 | static const intel_limit_t intel_limits_i8xx_lvds = { | |
0206e353 AJ |
131 | .dot = { .min = 25000, .max = 350000 }, |
132 | .vco = { .min = 930000, .max = 1400000 }, | |
133 | .n = { .min = 3, .max = 16 }, | |
134 | .m = { .min = 96, .max = 140 }, | |
135 | .m1 = { .min = 18, .max = 26 }, | |
136 | .m2 = { .min = 6, .max = 16 }, | |
137 | .p = { .min = 4, .max = 128 }, | |
138 | .p1 = { .min = 1, .max = 6 }, | |
273e27ca EA |
139 | .p2 = { .dot_limit = 165000, |
140 | .p2_slow = 14, .p2_fast = 7 }, | |
d4906093 | 141 | .find_pll = intel_find_best_PLL, |
e4b36699 | 142 | }; |
273e27ca | 143 | |
e4b36699 | 144 | static const intel_limit_t intel_limits_i9xx_sdvo = { |
0206e353 AJ |
145 | .dot = { .min = 20000, .max = 400000 }, |
146 | .vco = { .min = 1400000, .max = 2800000 }, | |
147 | .n = { .min = 1, .max = 6 }, | |
148 | .m = { .min = 70, .max = 120 }, | |
149 | .m1 = { .min = 10, .max = 22 }, | |
150 | .m2 = { .min = 5, .max = 9 }, | |
151 | .p = { .min = 5, .max = 80 }, | |
152 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
153 | .p2 = { .dot_limit = 200000, |
154 | .p2_slow = 10, .p2_fast = 5 }, | |
d4906093 | 155 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
156 | }; |
157 | ||
158 | static const intel_limit_t intel_limits_i9xx_lvds = { | |
0206e353 AJ |
159 | .dot = { .min = 20000, .max = 400000 }, |
160 | .vco = { .min = 1400000, .max = 2800000 }, | |
161 | .n = { .min = 1, .max = 6 }, | |
162 | .m = { .min = 70, .max = 120 }, | |
163 | .m1 = { .min = 10, .max = 22 }, | |
164 | .m2 = { .min = 5, .max = 9 }, | |
165 | .p = { .min = 7, .max = 98 }, | |
166 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
167 | .p2 = { .dot_limit = 112000, |
168 | .p2_slow = 14, .p2_fast = 7 }, | |
d4906093 | 169 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
170 | }; |
171 | ||
273e27ca | 172 | |
e4b36699 | 173 | static const intel_limit_t intel_limits_g4x_sdvo = { |
273e27ca EA |
174 | .dot = { .min = 25000, .max = 270000 }, |
175 | .vco = { .min = 1750000, .max = 3500000}, | |
176 | .n = { .min = 1, .max = 4 }, | |
177 | .m = { .min = 104, .max = 138 }, | |
178 | .m1 = { .min = 17, .max = 23 }, | |
179 | .m2 = { .min = 5, .max = 11 }, | |
180 | .p = { .min = 10, .max = 30 }, | |
181 | .p1 = { .min = 1, .max = 3}, | |
182 | .p2 = { .dot_limit = 270000, | |
183 | .p2_slow = 10, | |
184 | .p2_fast = 10 | |
044c7c41 | 185 | }, |
d4906093 | 186 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
187 | }; |
188 | ||
189 | static const intel_limit_t intel_limits_g4x_hdmi = { | |
273e27ca EA |
190 | .dot = { .min = 22000, .max = 400000 }, |
191 | .vco = { .min = 1750000, .max = 3500000}, | |
192 | .n = { .min = 1, .max = 4 }, | |
193 | .m = { .min = 104, .max = 138 }, | |
194 | .m1 = { .min = 16, .max = 23 }, | |
195 | .m2 = { .min = 5, .max = 11 }, | |
196 | .p = { .min = 5, .max = 80 }, | |
197 | .p1 = { .min = 1, .max = 8}, | |
198 | .p2 = { .dot_limit = 165000, | |
199 | .p2_slow = 10, .p2_fast = 5 }, | |
d4906093 | 200 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
201 | }; |
202 | ||
203 | static const intel_limit_t intel_limits_g4x_single_channel_lvds = { | |
273e27ca EA |
204 | .dot = { .min = 20000, .max = 115000 }, |
205 | .vco = { .min = 1750000, .max = 3500000 }, | |
206 | .n = { .min = 1, .max = 3 }, | |
207 | .m = { .min = 104, .max = 138 }, | |
208 | .m1 = { .min = 17, .max = 23 }, | |
209 | .m2 = { .min = 5, .max = 11 }, | |
210 | .p = { .min = 28, .max = 112 }, | |
211 | .p1 = { .min = 2, .max = 8 }, | |
212 | .p2 = { .dot_limit = 0, | |
213 | .p2_slow = 14, .p2_fast = 14 | |
044c7c41 | 214 | }, |
d4906093 | 215 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
216 | }; |
217 | ||
218 | static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { | |
273e27ca EA |
219 | .dot = { .min = 80000, .max = 224000 }, |
220 | .vco = { .min = 1750000, .max = 3500000 }, | |
221 | .n = { .min = 1, .max = 3 }, | |
222 | .m = { .min = 104, .max = 138 }, | |
223 | .m1 = { .min = 17, .max = 23 }, | |
224 | .m2 = { .min = 5, .max = 11 }, | |
225 | .p = { .min = 14, .max = 42 }, | |
226 | .p1 = { .min = 2, .max = 6 }, | |
227 | .p2 = { .dot_limit = 0, | |
228 | .p2_slow = 7, .p2_fast = 7 | |
044c7c41 | 229 | }, |
d4906093 | 230 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
231 | }; |
232 | ||
233 | static const intel_limit_t intel_limits_g4x_display_port = { | |
0206e353 AJ |
234 | .dot = { .min = 161670, .max = 227000 }, |
235 | .vco = { .min = 1750000, .max = 3500000}, | |
236 | .n = { .min = 1, .max = 2 }, | |
237 | .m = { .min = 97, .max = 108 }, | |
238 | .m1 = { .min = 0x10, .max = 0x12 }, | |
239 | .m2 = { .min = 0x05, .max = 0x06 }, | |
240 | .p = { .min = 10, .max = 20 }, | |
241 | .p1 = { .min = 1, .max = 2}, | |
242 | .p2 = { .dot_limit = 0, | |
273e27ca | 243 | .p2_slow = 10, .p2_fast = 10 }, |
0206e353 | 244 | .find_pll = intel_find_pll_g4x_dp, |
e4b36699 KP |
245 | }; |
246 | ||
f2b115e6 | 247 | static const intel_limit_t intel_limits_pineview_sdvo = { |
0206e353 AJ |
248 | .dot = { .min = 20000, .max = 400000}, |
249 | .vco = { .min = 1700000, .max = 3500000 }, | |
273e27ca | 250 | /* Pineview's Ncounter is a ring counter */ |
0206e353 AJ |
251 | .n = { .min = 3, .max = 6 }, |
252 | .m = { .min = 2, .max = 256 }, | |
273e27ca | 253 | /* Pineview only has one combined m divider, which we treat as m2. */ |
0206e353 AJ |
254 | .m1 = { .min = 0, .max = 0 }, |
255 | .m2 = { .min = 0, .max = 254 }, | |
256 | .p = { .min = 5, .max = 80 }, | |
257 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
258 | .p2 = { .dot_limit = 200000, |
259 | .p2_slow = 10, .p2_fast = 5 }, | |
6115707b | 260 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
261 | }; |
262 | ||
f2b115e6 | 263 | static const intel_limit_t intel_limits_pineview_lvds = { |
0206e353 AJ |
264 | .dot = { .min = 20000, .max = 400000 }, |
265 | .vco = { .min = 1700000, .max = 3500000 }, | |
266 | .n = { .min = 3, .max = 6 }, | |
267 | .m = { .min = 2, .max = 256 }, | |
268 | .m1 = { .min = 0, .max = 0 }, | |
269 | .m2 = { .min = 0, .max = 254 }, | |
270 | .p = { .min = 7, .max = 112 }, | |
271 | .p1 = { .min = 1, .max = 8 }, | |
273e27ca EA |
272 | .p2 = { .dot_limit = 112000, |
273 | .p2_slow = 14, .p2_fast = 14 }, | |
6115707b | 274 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
275 | }; |
276 | ||
273e27ca EA |
277 | /* Ironlake / Sandybridge |
278 | * | |
279 | * We calculate clock using (register_value + 2) for N/M1/M2, so here | |
280 | * the range value for them is (actual_value - 2). | |
281 | */ | |
b91ad0ec | 282 | static const intel_limit_t intel_limits_ironlake_dac = { |
273e27ca EA |
283 | .dot = { .min = 25000, .max = 350000 }, |
284 | .vco = { .min = 1760000, .max = 3510000 }, | |
285 | .n = { .min = 1, .max = 5 }, | |
286 | .m = { .min = 79, .max = 127 }, | |
287 | .m1 = { .min = 12, .max = 22 }, | |
288 | .m2 = { .min = 5, .max = 9 }, | |
289 | .p = { .min = 5, .max = 80 }, | |
290 | .p1 = { .min = 1, .max = 8 }, | |
291 | .p2 = { .dot_limit = 225000, | |
292 | .p2_slow = 10, .p2_fast = 5 }, | |
4547668a | 293 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
294 | }; |
295 | ||
b91ad0ec | 296 | static const intel_limit_t intel_limits_ironlake_single_lvds = { |
273e27ca EA |
297 | .dot = { .min = 25000, .max = 350000 }, |
298 | .vco = { .min = 1760000, .max = 3510000 }, | |
299 | .n = { .min = 1, .max = 3 }, | |
300 | .m = { .min = 79, .max = 118 }, | |
301 | .m1 = { .min = 12, .max = 22 }, | |
302 | .m2 = { .min = 5, .max = 9 }, | |
303 | .p = { .min = 28, .max = 112 }, | |
304 | .p1 = { .min = 2, .max = 8 }, | |
305 | .p2 = { .dot_limit = 225000, | |
306 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
307 | .find_pll = intel_g4x_find_best_PLL, |
308 | }; | |
309 | ||
310 | static const intel_limit_t intel_limits_ironlake_dual_lvds = { | |
273e27ca EA |
311 | .dot = { .min = 25000, .max = 350000 }, |
312 | .vco = { .min = 1760000, .max = 3510000 }, | |
313 | .n = { .min = 1, .max = 3 }, | |
314 | .m = { .min = 79, .max = 127 }, | |
315 | .m1 = { .min = 12, .max = 22 }, | |
316 | .m2 = { .min = 5, .max = 9 }, | |
317 | .p = { .min = 14, .max = 56 }, | |
318 | .p1 = { .min = 2, .max = 8 }, | |
319 | .p2 = { .dot_limit = 225000, | |
320 | .p2_slow = 7, .p2_fast = 7 }, | |
b91ad0ec ZW |
321 | .find_pll = intel_g4x_find_best_PLL, |
322 | }; | |
323 | ||
273e27ca | 324 | /* LVDS 100mhz refclk limits. */ |
b91ad0ec | 325 | static const intel_limit_t intel_limits_ironlake_single_lvds_100m = { |
273e27ca EA |
326 | .dot = { .min = 25000, .max = 350000 }, |
327 | .vco = { .min = 1760000, .max = 3510000 }, | |
328 | .n = { .min = 1, .max = 2 }, | |
329 | .m = { .min = 79, .max = 126 }, | |
330 | .m1 = { .min = 12, .max = 22 }, | |
331 | .m2 = { .min = 5, .max = 9 }, | |
332 | .p = { .min = 28, .max = 112 }, | |
0206e353 | 333 | .p1 = { .min = 2, .max = 8 }, |
273e27ca EA |
334 | .p2 = { .dot_limit = 225000, |
335 | .p2_slow = 14, .p2_fast = 14 }, | |
b91ad0ec ZW |
336 | .find_pll = intel_g4x_find_best_PLL, |
337 | }; | |
338 | ||
339 | static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = { | |
273e27ca EA |
340 | .dot = { .min = 25000, .max = 350000 }, |
341 | .vco = { .min = 1760000, .max = 3510000 }, | |
342 | .n = { .min = 1, .max = 3 }, | |
343 | .m = { .min = 79, .max = 126 }, | |
344 | .m1 = { .min = 12, .max = 22 }, | |
345 | .m2 = { .min = 5, .max = 9 }, | |
346 | .p = { .min = 14, .max = 42 }, | |
0206e353 | 347 | .p1 = { .min = 2, .max = 6 }, |
273e27ca EA |
348 | .p2 = { .dot_limit = 225000, |
349 | .p2_slow = 7, .p2_fast = 7 }, | |
4547668a ZY |
350 | .find_pll = intel_g4x_find_best_PLL, |
351 | }; | |
352 | ||
353 | static const intel_limit_t intel_limits_ironlake_display_port = { | |
0206e353 AJ |
354 | .dot = { .min = 25000, .max = 350000 }, |
355 | .vco = { .min = 1760000, .max = 3510000}, | |
356 | .n = { .min = 1, .max = 2 }, | |
357 | .m = { .min = 81, .max = 90 }, | |
358 | .m1 = { .min = 12, .max = 22 }, | |
359 | .m2 = { .min = 5, .max = 9 }, | |
360 | .p = { .min = 10, .max = 20 }, | |
361 | .p1 = { .min = 1, .max = 2}, | |
362 | .p2 = { .dot_limit = 0, | |
273e27ca | 363 | .p2_slow = 10, .p2_fast = 10 }, |
0206e353 | 364 | .find_pll = intel_find_pll_ironlake_dp, |
79e53945 JB |
365 | }; |
366 | ||
a0c4da24 JB |
367 | static const intel_limit_t intel_limits_vlv_dac = { |
368 | .dot = { .min = 25000, .max = 270000 }, | |
369 | .vco = { .min = 4000000, .max = 6000000 }, | |
370 | .n = { .min = 1, .max = 7 }, | |
371 | .m = { .min = 22, .max = 450 }, /* guess */ | |
372 | .m1 = { .min = 2, .max = 3 }, | |
373 | .m2 = { .min = 11, .max = 156 }, | |
374 | .p = { .min = 10, .max = 30 }, | |
375 | .p1 = { .min = 2, .max = 3 }, | |
376 | .p2 = { .dot_limit = 270000, | |
377 | .p2_slow = 2, .p2_fast = 20 }, | |
378 | .find_pll = intel_vlv_find_best_pll, | |
379 | }; | |
380 | ||
381 | static const intel_limit_t intel_limits_vlv_hdmi = { | |
382 | .dot = { .min = 20000, .max = 165000 }, | |
383 | .vco = { .min = 5994000, .max = 4000000 }, | |
384 | .n = { .min = 1, .max = 7 }, | |
385 | .m = { .min = 60, .max = 300 }, /* guess */ | |
386 | .m1 = { .min = 2, .max = 3 }, | |
387 | .m2 = { .min = 11, .max = 156 }, | |
388 | .p = { .min = 10, .max = 30 }, | |
389 | .p1 = { .min = 2, .max = 3 }, | |
390 | .p2 = { .dot_limit = 270000, | |
391 | .p2_slow = 2, .p2_fast = 20 }, | |
392 | .find_pll = intel_vlv_find_best_pll, | |
393 | }; | |
394 | ||
395 | static const intel_limit_t intel_limits_vlv_dp = { | |
396 | .dot = { .min = 162000, .max = 270000 }, | |
397 | .vco = { .min = 5994000, .max = 4000000 }, | |
398 | .n = { .min = 1, .max = 7 }, | |
399 | .m = { .min = 60, .max = 300 }, /* guess */ | |
400 | .m1 = { .min = 2, .max = 3 }, | |
401 | .m2 = { .min = 11, .max = 156 }, | |
402 | .p = { .min = 10, .max = 30 }, | |
403 | .p1 = { .min = 2, .max = 3 }, | |
404 | .p2 = { .dot_limit = 270000, | |
405 | .p2_slow = 2, .p2_fast = 20 }, | |
406 | .find_pll = intel_vlv_find_best_pll, | |
407 | }; | |
408 | ||
57f350b6 JB |
409 | u32 intel_dpio_read(struct drm_i915_private *dev_priv, int reg) |
410 | { | |
411 | unsigned long flags; | |
412 | u32 val = 0; | |
413 | ||
414 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
415 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) { | |
416 | DRM_ERROR("DPIO idle wait timed out\n"); | |
417 | goto out_unlock; | |
418 | } | |
419 | ||
420 | I915_WRITE(DPIO_REG, reg); | |
421 | I915_WRITE(DPIO_PKT, DPIO_RID | DPIO_OP_READ | DPIO_PORTID | | |
422 | DPIO_BYTE); | |
423 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) { | |
424 | DRM_ERROR("DPIO read wait timed out\n"); | |
425 | goto out_unlock; | |
426 | } | |
427 | val = I915_READ(DPIO_DATA); | |
428 | ||
429 | out_unlock: | |
430 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
431 | return val; | |
432 | } | |
433 | ||
a0c4da24 JB |
434 | static void intel_dpio_write(struct drm_i915_private *dev_priv, int reg, |
435 | u32 val) | |
436 | { | |
437 | unsigned long flags; | |
438 | ||
439 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
440 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) { | |
441 | DRM_ERROR("DPIO idle wait timed out\n"); | |
442 | goto out_unlock; | |
443 | } | |
444 | ||
445 | I915_WRITE(DPIO_DATA, val); | |
446 | I915_WRITE(DPIO_REG, reg); | |
447 | I915_WRITE(DPIO_PKT, DPIO_RID | DPIO_OP_WRITE | DPIO_PORTID | | |
448 | DPIO_BYTE); | |
449 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) | |
450 | DRM_ERROR("DPIO write wait timed out\n"); | |
451 | ||
452 | out_unlock: | |
453 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
454 | } | |
455 | ||
57f350b6 JB |
456 | static void vlv_init_dpio(struct drm_device *dev) |
457 | { | |
458 | struct drm_i915_private *dev_priv = dev->dev_private; | |
459 | ||
460 | /* Reset the DPIO config */ | |
461 | I915_WRITE(DPIO_CTL, 0); | |
462 | POSTING_READ(DPIO_CTL); | |
463 | I915_WRITE(DPIO_CTL, 1); | |
464 | POSTING_READ(DPIO_CTL); | |
465 | } | |
466 | ||
618563e3 DV |
467 | static int intel_dual_link_lvds_callback(const struct dmi_system_id *id) |
468 | { | |
469 | DRM_INFO("Forcing lvds to dual link mode on %s\n", id->ident); | |
470 | return 1; | |
471 | } | |
472 | ||
473 | static const struct dmi_system_id intel_dual_link_lvds[] = { | |
474 | { | |
475 | .callback = intel_dual_link_lvds_callback, | |
476 | .ident = "Apple MacBook Pro (Core i5/i7 Series)", | |
477 | .matches = { | |
478 | DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), | |
479 | DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro8,2"), | |
480 | }, | |
481 | }, | |
482 | { } /* terminating entry */ | |
483 | }; | |
484 | ||
b0354385 TI |
485 | static bool is_dual_link_lvds(struct drm_i915_private *dev_priv, |
486 | unsigned int reg) | |
487 | { | |
488 | unsigned int val; | |
489 | ||
121d527a TI |
490 | /* use the module option value if specified */ |
491 | if (i915_lvds_channel_mode > 0) | |
492 | return i915_lvds_channel_mode == 2; | |
493 | ||
618563e3 DV |
494 | if (dmi_check_system(intel_dual_link_lvds)) |
495 | return true; | |
496 | ||
b0354385 TI |
497 | if (dev_priv->lvds_val) |
498 | val = dev_priv->lvds_val; | |
499 | else { | |
500 | /* BIOS should set the proper LVDS register value at boot, but | |
501 | * in reality, it doesn't set the value when the lid is closed; | |
502 | * we need to check "the value to be set" in VBT when LVDS | |
503 | * register is uninitialized. | |
504 | */ | |
505 | val = I915_READ(reg); | |
14d94a3d | 506 | if (!(val & ~(LVDS_PIPE_MASK | LVDS_DETECTED))) |
b0354385 TI |
507 | val = dev_priv->bios_lvds_val; |
508 | dev_priv->lvds_val = val; | |
509 | } | |
510 | return (val & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP; | |
511 | } | |
512 | ||
1b894b59 CW |
513 | static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc, |
514 | int refclk) | |
2c07245f | 515 | { |
b91ad0ec ZW |
516 | struct drm_device *dev = crtc->dev; |
517 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2c07245f | 518 | const intel_limit_t *limit; |
b91ad0ec ZW |
519 | |
520 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
b0354385 | 521 | if (is_dual_link_lvds(dev_priv, PCH_LVDS)) { |
b91ad0ec | 522 | /* LVDS dual channel */ |
1b894b59 | 523 | if (refclk == 100000) |
b91ad0ec ZW |
524 | limit = &intel_limits_ironlake_dual_lvds_100m; |
525 | else | |
526 | limit = &intel_limits_ironlake_dual_lvds; | |
527 | } else { | |
1b894b59 | 528 | if (refclk == 100000) |
b91ad0ec ZW |
529 | limit = &intel_limits_ironlake_single_lvds_100m; |
530 | else | |
531 | limit = &intel_limits_ironlake_single_lvds; | |
532 | } | |
533 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || | |
4547668a ZY |
534 | HAS_eDP) |
535 | limit = &intel_limits_ironlake_display_port; | |
2c07245f | 536 | else |
b91ad0ec | 537 | limit = &intel_limits_ironlake_dac; |
2c07245f ZW |
538 | |
539 | return limit; | |
540 | } | |
541 | ||
044c7c41 ML |
542 | static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc) |
543 | { | |
544 | struct drm_device *dev = crtc->dev; | |
545 | struct drm_i915_private *dev_priv = dev->dev_private; | |
546 | const intel_limit_t *limit; | |
547 | ||
548 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
b0354385 | 549 | if (is_dual_link_lvds(dev_priv, LVDS)) |
044c7c41 | 550 | /* LVDS with dual channel */ |
e4b36699 | 551 | limit = &intel_limits_g4x_dual_channel_lvds; |
044c7c41 ML |
552 | else |
553 | /* LVDS with dual channel */ | |
e4b36699 | 554 | limit = &intel_limits_g4x_single_channel_lvds; |
044c7c41 ML |
555 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) || |
556 | intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { | |
e4b36699 | 557 | limit = &intel_limits_g4x_hdmi; |
044c7c41 | 558 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) { |
e4b36699 | 559 | limit = &intel_limits_g4x_sdvo; |
0206e353 | 560 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
e4b36699 | 561 | limit = &intel_limits_g4x_display_port; |
044c7c41 | 562 | } else /* The option is for other outputs */ |
e4b36699 | 563 | limit = &intel_limits_i9xx_sdvo; |
044c7c41 ML |
564 | |
565 | return limit; | |
566 | } | |
567 | ||
1b894b59 | 568 | static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk) |
79e53945 JB |
569 | { |
570 | struct drm_device *dev = crtc->dev; | |
571 | const intel_limit_t *limit; | |
572 | ||
bad720ff | 573 | if (HAS_PCH_SPLIT(dev)) |
1b894b59 | 574 | limit = intel_ironlake_limit(crtc, refclk); |
2c07245f | 575 | else if (IS_G4X(dev)) { |
044c7c41 | 576 | limit = intel_g4x_limit(crtc); |
f2b115e6 | 577 | } else if (IS_PINEVIEW(dev)) { |
2177832f | 578 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
f2b115e6 | 579 | limit = &intel_limits_pineview_lvds; |
2177832f | 580 | else |
f2b115e6 | 581 | limit = &intel_limits_pineview_sdvo; |
a0c4da24 JB |
582 | } else if (IS_VALLEYVIEW(dev)) { |
583 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) | |
584 | limit = &intel_limits_vlv_dac; | |
585 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) | |
586 | limit = &intel_limits_vlv_hdmi; | |
587 | else | |
588 | limit = &intel_limits_vlv_dp; | |
a6c45cf0 CW |
589 | } else if (!IS_GEN2(dev)) { |
590 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
591 | limit = &intel_limits_i9xx_lvds; | |
592 | else | |
593 | limit = &intel_limits_i9xx_sdvo; | |
79e53945 JB |
594 | } else { |
595 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
e4b36699 | 596 | limit = &intel_limits_i8xx_lvds; |
79e53945 | 597 | else |
e4b36699 | 598 | limit = &intel_limits_i8xx_dvo; |
79e53945 JB |
599 | } |
600 | return limit; | |
601 | } | |
602 | ||
f2b115e6 AJ |
603 | /* m1 is reserved as 0 in Pineview, n is a ring counter */ |
604 | static void pineview_clock(int refclk, intel_clock_t *clock) | |
79e53945 | 605 | { |
2177832f SL |
606 | clock->m = clock->m2 + 2; |
607 | clock->p = clock->p1 * clock->p2; | |
608 | clock->vco = refclk * clock->m / clock->n; | |
609 | clock->dot = clock->vco / clock->p; | |
610 | } | |
611 | ||
612 | static void intel_clock(struct drm_device *dev, int refclk, intel_clock_t *clock) | |
613 | { | |
f2b115e6 AJ |
614 | if (IS_PINEVIEW(dev)) { |
615 | pineview_clock(refclk, clock); | |
2177832f SL |
616 | return; |
617 | } | |
79e53945 JB |
618 | clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2); |
619 | clock->p = clock->p1 * clock->p2; | |
620 | clock->vco = refclk * clock->m / (clock->n + 2); | |
621 | clock->dot = clock->vco / clock->p; | |
622 | } | |
623 | ||
79e53945 JB |
624 | /** |
625 | * Returns whether any output on the specified pipe is of the specified type | |
626 | */ | |
4ef69c7a | 627 | bool intel_pipe_has_type(struct drm_crtc *crtc, int type) |
79e53945 | 628 | { |
4ef69c7a | 629 | struct drm_device *dev = crtc->dev; |
4ef69c7a CW |
630 | struct intel_encoder *encoder; |
631 | ||
6c2b7c12 DV |
632 | for_each_encoder_on_crtc(dev, crtc, encoder) |
633 | if (encoder->type == type) | |
4ef69c7a CW |
634 | return true; |
635 | ||
636 | return false; | |
79e53945 JB |
637 | } |
638 | ||
7c04d1d9 | 639 | #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) |
79e53945 JB |
640 | /** |
641 | * Returns whether the given set of divisors are valid for a given refclk with | |
642 | * the given connectors. | |
643 | */ | |
644 | ||
1b894b59 CW |
645 | static bool intel_PLL_is_valid(struct drm_device *dev, |
646 | const intel_limit_t *limit, | |
647 | const intel_clock_t *clock) | |
79e53945 | 648 | { |
79e53945 | 649 | if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1) |
0206e353 | 650 | INTELPllInvalid("p1 out of range\n"); |
79e53945 | 651 | if (clock->p < limit->p.min || limit->p.max < clock->p) |
0206e353 | 652 | INTELPllInvalid("p out of range\n"); |
79e53945 | 653 | if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2) |
0206e353 | 654 | INTELPllInvalid("m2 out of range\n"); |
79e53945 | 655 | if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1) |
0206e353 | 656 | INTELPllInvalid("m1 out of range\n"); |
f2b115e6 | 657 | if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev)) |
0206e353 | 658 | INTELPllInvalid("m1 <= m2\n"); |
79e53945 | 659 | if (clock->m < limit->m.min || limit->m.max < clock->m) |
0206e353 | 660 | INTELPllInvalid("m out of range\n"); |
79e53945 | 661 | if (clock->n < limit->n.min || limit->n.max < clock->n) |
0206e353 | 662 | INTELPllInvalid("n out of range\n"); |
79e53945 | 663 | if (clock->vco < limit->vco.min || limit->vco.max < clock->vco) |
0206e353 | 664 | INTELPllInvalid("vco out of range\n"); |
79e53945 JB |
665 | /* XXX: We may need to be checking "Dot clock" depending on the multiplier, |
666 | * connector, etc., rather than just a single range. | |
667 | */ | |
668 | if (clock->dot < limit->dot.min || limit->dot.max < clock->dot) | |
0206e353 | 669 | INTELPllInvalid("dot out of range\n"); |
79e53945 JB |
670 | |
671 | return true; | |
672 | } | |
673 | ||
d4906093 ML |
674 | static bool |
675 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
676 | int target, int refclk, intel_clock_t *match_clock, |
677 | intel_clock_t *best_clock) | |
d4906093 | 678 | |
79e53945 JB |
679 | { |
680 | struct drm_device *dev = crtc->dev; | |
681 | struct drm_i915_private *dev_priv = dev->dev_private; | |
682 | intel_clock_t clock; | |
79e53945 JB |
683 | int err = target; |
684 | ||
bc5e5718 | 685 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && |
832cc28d | 686 | (I915_READ(LVDS)) != 0) { |
79e53945 JB |
687 | /* |
688 | * For LVDS, if the panel is on, just rely on its current | |
689 | * settings for dual-channel. We haven't figured out how to | |
690 | * reliably set up different single/dual channel state, if we | |
691 | * even can. | |
692 | */ | |
b0354385 | 693 | if (is_dual_link_lvds(dev_priv, LVDS)) |
79e53945 JB |
694 | clock.p2 = limit->p2.p2_fast; |
695 | else | |
696 | clock.p2 = limit->p2.p2_slow; | |
697 | } else { | |
698 | if (target < limit->p2.dot_limit) | |
699 | clock.p2 = limit->p2.p2_slow; | |
700 | else | |
701 | clock.p2 = limit->p2.p2_fast; | |
702 | } | |
703 | ||
0206e353 | 704 | memset(best_clock, 0, sizeof(*best_clock)); |
79e53945 | 705 | |
42158660 ZY |
706 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
707 | clock.m1++) { | |
708 | for (clock.m2 = limit->m2.min; | |
709 | clock.m2 <= limit->m2.max; clock.m2++) { | |
f2b115e6 AJ |
710 | /* m1 is always 0 in Pineview */ |
711 | if (clock.m2 >= clock.m1 && !IS_PINEVIEW(dev)) | |
42158660 ZY |
712 | break; |
713 | for (clock.n = limit->n.min; | |
714 | clock.n <= limit->n.max; clock.n++) { | |
715 | for (clock.p1 = limit->p1.min; | |
716 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
717 | int this_err; |
718 | ||
2177832f | 719 | intel_clock(dev, refclk, &clock); |
1b894b59 CW |
720 | if (!intel_PLL_is_valid(dev, limit, |
721 | &clock)) | |
79e53945 | 722 | continue; |
cec2f356 SP |
723 | if (match_clock && |
724 | clock.p != match_clock->p) | |
725 | continue; | |
79e53945 JB |
726 | |
727 | this_err = abs(clock.dot - target); | |
728 | if (this_err < err) { | |
729 | *best_clock = clock; | |
730 | err = this_err; | |
731 | } | |
732 | } | |
733 | } | |
734 | } | |
735 | } | |
736 | ||
737 | return (err != target); | |
738 | } | |
739 | ||
d4906093 ML |
740 | static bool |
741 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
742 | int target, int refclk, intel_clock_t *match_clock, |
743 | intel_clock_t *best_clock) | |
d4906093 ML |
744 | { |
745 | struct drm_device *dev = crtc->dev; | |
746 | struct drm_i915_private *dev_priv = dev->dev_private; | |
747 | intel_clock_t clock; | |
748 | int max_n; | |
749 | bool found; | |
6ba770dc AJ |
750 | /* approximately equals target * 0.00585 */ |
751 | int err_most = (target >> 8) + (target >> 9); | |
d4906093 ML |
752 | found = false; |
753 | ||
754 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
4547668a ZY |
755 | int lvds_reg; |
756 | ||
c619eed4 | 757 | if (HAS_PCH_SPLIT(dev)) |
4547668a ZY |
758 | lvds_reg = PCH_LVDS; |
759 | else | |
760 | lvds_reg = LVDS; | |
761 | if ((I915_READ(lvds_reg) & LVDS_CLKB_POWER_MASK) == | |
d4906093 ML |
762 | LVDS_CLKB_POWER_UP) |
763 | clock.p2 = limit->p2.p2_fast; | |
764 | else | |
765 | clock.p2 = limit->p2.p2_slow; | |
766 | } else { | |
767 | if (target < limit->p2.dot_limit) | |
768 | clock.p2 = limit->p2.p2_slow; | |
769 | else | |
770 | clock.p2 = limit->p2.p2_fast; | |
771 | } | |
772 | ||
773 | memset(best_clock, 0, sizeof(*best_clock)); | |
774 | max_n = limit->n.max; | |
f77f13e2 | 775 | /* based on hardware requirement, prefer smaller n to precision */ |
d4906093 | 776 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
f77f13e2 | 777 | /* based on hardware requirement, prefere larger m1,m2 */ |
d4906093 ML |
778 | for (clock.m1 = limit->m1.max; |
779 | clock.m1 >= limit->m1.min; clock.m1--) { | |
780 | for (clock.m2 = limit->m2.max; | |
781 | clock.m2 >= limit->m2.min; clock.m2--) { | |
782 | for (clock.p1 = limit->p1.max; | |
783 | clock.p1 >= limit->p1.min; clock.p1--) { | |
784 | int this_err; | |
785 | ||
2177832f | 786 | intel_clock(dev, refclk, &clock); |
1b894b59 CW |
787 | if (!intel_PLL_is_valid(dev, limit, |
788 | &clock)) | |
d4906093 | 789 | continue; |
cec2f356 SP |
790 | if (match_clock && |
791 | clock.p != match_clock->p) | |
792 | continue; | |
1b894b59 CW |
793 | |
794 | this_err = abs(clock.dot - target); | |
d4906093 ML |
795 | if (this_err < err_most) { |
796 | *best_clock = clock; | |
797 | err_most = this_err; | |
798 | max_n = clock.n; | |
799 | found = true; | |
800 | } | |
801 | } | |
802 | } | |
803 | } | |
804 | } | |
2c07245f ZW |
805 | return found; |
806 | } | |
807 | ||
5eb08b69 | 808 | static bool |
f2b115e6 | 809 | intel_find_pll_ironlake_dp(const intel_limit_t *limit, struct drm_crtc *crtc, |
cec2f356 SP |
810 | int target, int refclk, intel_clock_t *match_clock, |
811 | intel_clock_t *best_clock) | |
5eb08b69 ZW |
812 | { |
813 | struct drm_device *dev = crtc->dev; | |
814 | intel_clock_t clock; | |
4547668a | 815 | |
5eb08b69 ZW |
816 | if (target < 200000) { |
817 | clock.n = 1; | |
818 | clock.p1 = 2; | |
819 | clock.p2 = 10; | |
820 | clock.m1 = 12; | |
821 | clock.m2 = 9; | |
822 | } else { | |
823 | clock.n = 2; | |
824 | clock.p1 = 1; | |
825 | clock.p2 = 10; | |
826 | clock.m1 = 14; | |
827 | clock.m2 = 8; | |
828 | } | |
829 | intel_clock(dev, refclk, &clock); | |
830 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); | |
831 | return true; | |
832 | } | |
833 | ||
a4fc5ed6 KP |
834 | /* DisplayPort has only two frequencies, 162MHz and 270MHz */ |
835 | static bool | |
836 | intel_find_pll_g4x_dp(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
837 | int target, int refclk, intel_clock_t *match_clock, |
838 | intel_clock_t *best_clock) | |
a4fc5ed6 | 839 | { |
5eddb70b CW |
840 | intel_clock_t clock; |
841 | if (target < 200000) { | |
842 | clock.p1 = 2; | |
843 | clock.p2 = 10; | |
844 | clock.n = 2; | |
845 | clock.m1 = 23; | |
846 | clock.m2 = 8; | |
847 | } else { | |
848 | clock.p1 = 1; | |
849 | clock.p2 = 10; | |
850 | clock.n = 1; | |
851 | clock.m1 = 14; | |
852 | clock.m2 = 2; | |
853 | } | |
854 | clock.m = 5 * (clock.m1 + 2) + (clock.m2 + 2); | |
855 | clock.p = (clock.p1 * clock.p2); | |
856 | clock.dot = 96000 * clock.m / (clock.n + 2) / clock.p; | |
857 | clock.vco = 0; | |
858 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); | |
859 | return true; | |
a4fc5ed6 | 860 | } |
a0c4da24 JB |
861 | static bool |
862 | intel_vlv_find_best_pll(const intel_limit_t *limit, struct drm_crtc *crtc, | |
863 | int target, int refclk, intel_clock_t *match_clock, | |
864 | intel_clock_t *best_clock) | |
865 | { | |
866 | u32 p1, p2, m1, m2, vco, bestn, bestm1, bestm2, bestp1, bestp2; | |
867 | u32 m, n, fastclk; | |
868 | u32 updrate, minupdate, fracbits, p; | |
869 | unsigned long bestppm, ppm, absppm; | |
870 | int dotclk, flag; | |
871 | ||
af447bd3 | 872 | flag = 0; |
a0c4da24 JB |
873 | dotclk = target * 1000; |
874 | bestppm = 1000000; | |
875 | ppm = absppm = 0; | |
876 | fastclk = dotclk / (2*100); | |
877 | updrate = 0; | |
878 | minupdate = 19200; | |
879 | fracbits = 1; | |
880 | n = p = p1 = p2 = m = m1 = m2 = vco = bestn = 0; | |
881 | bestm1 = bestm2 = bestp1 = bestp2 = 0; | |
882 | ||
883 | /* based on hardware requirement, prefer smaller n to precision */ | |
884 | for (n = limit->n.min; n <= ((refclk) / minupdate); n++) { | |
885 | updrate = refclk / n; | |
886 | for (p1 = limit->p1.max; p1 > limit->p1.min; p1--) { | |
887 | for (p2 = limit->p2.p2_fast+1; p2 > 0; p2--) { | |
888 | if (p2 > 10) | |
889 | p2 = p2 - 1; | |
890 | p = p1 * p2; | |
891 | /* based on hardware requirement, prefer bigger m1,m2 values */ | |
892 | for (m1 = limit->m1.min; m1 <= limit->m1.max; m1++) { | |
893 | m2 = (((2*(fastclk * p * n / m1 )) + | |
894 | refclk) / (2*refclk)); | |
895 | m = m1 * m2; | |
896 | vco = updrate * m; | |
897 | if (vco >= limit->vco.min && vco < limit->vco.max) { | |
898 | ppm = 1000000 * ((vco / p) - fastclk) / fastclk; | |
899 | absppm = (ppm > 0) ? ppm : (-ppm); | |
900 | if (absppm < 100 && ((p1 * p2) > (bestp1 * bestp2))) { | |
901 | bestppm = 0; | |
902 | flag = 1; | |
903 | } | |
904 | if (absppm < bestppm - 10) { | |
905 | bestppm = absppm; | |
906 | flag = 1; | |
907 | } | |
908 | if (flag) { | |
909 | bestn = n; | |
910 | bestm1 = m1; | |
911 | bestm2 = m2; | |
912 | bestp1 = p1; | |
913 | bestp2 = p2; | |
914 | flag = 0; | |
915 | } | |
916 | } | |
917 | } | |
918 | } | |
919 | } | |
920 | } | |
921 | best_clock->n = bestn; | |
922 | best_clock->m1 = bestm1; | |
923 | best_clock->m2 = bestm2; | |
924 | best_clock->p1 = bestp1; | |
925 | best_clock->p2 = bestp2; | |
926 | ||
927 | return true; | |
928 | } | |
a4fc5ed6 | 929 | |
a928d536 PZ |
930 | static void ironlake_wait_for_vblank(struct drm_device *dev, int pipe) |
931 | { | |
932 | struct drm_i915_private *dev_priv = dev->dev_private; | |
933 | u32 frame, frame_reg = PIPEFRAME(pipe); | |
934 | ||
935 | frame = I915_READ(frame_reg); | |
936 | ||
937 | if (wait_for(I915_READ_NOTRACE(frame_reg) != frame, 50)) | |
938 | DRM_DEBUG_KMS("vblank wait timed out\n"); | |
939 | } | |
940 | ||
9d0498a2 JB |
941 | /** |
942 | * intel_wait_for_vblank - wait for vblank on a given pipe | |
943 | * @dev: drm device | |
944 | * @pipe: pipe to wait for | |
945 | * | |
946 | * Wait for vblank to occur on a given pipe. Needed for various bits of | |
947 | * mode setting code. | |
948 | */ | |
949 | void intel_wait_for_vblank(struct drm_device *dev, int pipe) | |
79e53945 | 950 | { |
9d0498a2 | 951 | struct drm_i915_private *dev_priv = dev->dev_private; |
9db4a9c7 | 952 | int pipestat_reg = PIPESTAT(pipe); |
9d0498a2 | 953 | |
a928d536 PZ |
954 | if (INTEL_INFO(dev)->gen >= 5) { |
955 | ironlake_wait_for_vblank(dev, pipe); | |
956 | return; | |
957 | } | |
958 | ||
300387c0 CW |
959 | /* Clear existing vblank status. Note this will clear any other |
960 | * sticky status fields as well. | |
961 | * | |
962 | * This races with i915_driver_irq_handler() with the result | |
963 | * that either function could miss a vblank event. Here it is not | |
964 | * fatal, as we will either wait upon the next vblank interrupt or | |
965 | * timeout. Generally speaking intel_wait_for_vblank() is only | |
966 | * called during modeset at which time the GPU should be idle and | |
967 | * should *not* be performing page flips and thus not waiting on | |
968 | * vblanks... | |
969 | * Currently, the result of us stealing a vblank from the irq | |
970 | * handler is that a single frame will be skipped during swapbuffers. | |
971 | */ | |
972 | I915_WRITE(pipestat_reg, | |
973 | I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS); | |
974 | ||
9d0498a2 | 975 | /* Wait for vblank interrupt bit to set */ |
481b6af3 CW |
976 | if (wait_for(I915_READ(pipestat_reg) & |
977 | PIPE_VBLANK_INTERRUPT_STATUS, | |
978 | 50)) | |
9d0498a2 JB |
979 | DRM_DEBUG_KMS("vblank wait timed out\n"); |
980 | } | |
981 | ||
ab7ad7f6 KP |
982 | /* |
983 | * intel_wait_for_pipe_off - wait for pipe to turn off | |
9d0498a2 JB |
984 | * @dev: drm device |
985 | * @pipe: pipe to wait for | |
986 | * | |
987 | * After disabling a pipe, we can't wait for vblank in the usual way, | |
988 | * spinning on the vblank interrupt status bit, since we won't actually | |
989 | * see an interrupt when the pipe is disabled. | |
990 | * | |
ab7ad7f6 KP |
991 | * On Gen4 and above: |
992 | * wait for the pipe register state bit to turn off | |
993 | * | |
994 | * Otherwise: | |
995 | * wait for the display line value to settle (it usually | |
996 | * ends up stopping at the start of the next frame). | |
58e10eb9 | 997 | * |
9d0498a2 | 998 | */ |
58e10eb9 | 999 | void intel_wait_for_pipe_off(struct drm_device *dev, int pipe) |
9d0498a2 JB |
1000 | { |
1001 | struct drm_i915_private *dev_priv = dev->dev_private; | |
ab7ad7f6 KP |
1002 | |
1003 | if (INTEL_INFO(dev)->gen >= 4) { | |
58e10eb9 | 1004 | int reg = PIPECONF(pipe); |
ab7ad7f6 KP |
1005 | |
1006 | /* Wait for the Pipe State to go off */ | |
58e10eb9 CW |
1007 | if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0, |
1008 | 100)) | |
284637d9 | 1009 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 1010 | } else { |
837ba00f | 1011 | u32 last_line, line_mask; |
58e10eb9 | 1012 | int reg = PIPEDSL(pipe); |
ab7ad7f6 KP |
1013 | unsigned long timeout = jiffies + msecs_to_jiffies(100); |
1014 | ||
837ba00f PZ |
1015 | if (IS_GEN2(dev)) |
1016 | line_mask = DSL_LINEMASK_GEN2; | |
1017 | else | |
1018 | line_mask = DSL_LINEMASK_GEN3; | |
1019 | ||
ab7ad7f6 KP |
1020 | /* Wait for the display line to settle */ |
1021 | do { | |
837ba00f | 1022 | last_line = I915_READ(reg) & line_mask; |
ab7ad7f6 | 1023 | mdelay(5); |
837ba00f | 1024 | } while (((I915_READ(reg) & line_mask) != last_line) && |
ab7ad7f6 KP |
1025 | time_after(timeout, jiffies)); |
1026 | if (time_after(jiffies, timeout)) | |
284637d9 | 1027 | WARN(1, "pipe_off wait timed out\n"); |
ab7ad7f6 | 1028 | } |
79e53945 JB |
1029 | } |
1030 | ||
b24e7179 JB |
1031 | static const char *state_string(bool enabled) |
1032 | { | |
1033 | return enabled ? "on" : "off"; | |
1034 | } | |
1035 | ||
1036 | /* Only for pre-ILK configs */ | |
1037 | static void assert_pll(struct drm_i915_private *dev_priv, | |
1038 | enum pipe pipe, bool state) | |
1039 | { | |
1040 | int reg; | |
1041 | u32 val; | |
1042 | bool cur_state; | |
1043 | ||
1044 | reg = DPLL(pipe); | |
1045 | val = I915_READ(reg); | |
1046 | cur_state = !!(val & DPLL_VCO_ENABLE); | |
1047 | WARN(cur_state != state, | |
1048 | "PLL state assertion failure (expected %s, current %s)\n", | |
1049 | state_string(state), state_string(cur_state)); | |
1050 | } | |
1051 | #define assert_pll_enabled(d, p) assert_pll(d, p, true) | |
1052 | #define assert_pll_disabled(d, p) assert_pll(d, p, false) | |
1053 | ||
040484af JB |
1054 | /* For ILK+ */ |
1055 | static void assert_pch_pll(struct drm_i915_private *dev_priv, | |
92b27b08 CW |
1056 | struct intel_pch_pll *pll, |
1057 | struct intel_crtc *crtc, | |
1058 | bool state) | |
040484af | 1059 | { |
040484af JB |
1060 | u32 val; |
1061 | bool cur_state; | |
1062 | ||
9d82aa17 ED |
1063 | if (HAS_PCH_LPT(dev_priv->dev)) { |
1064 | DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n"); | |
1065 | return; | |
1066 | } | |
1067 | ||
92b27b08 CW |
1068 | if (WARN (!pll, |
1069 | "asserting PCH PLL %s with no PLL\n", state_string(state))) | |
ee7b9f93 | 1070 | return; |
ee7b9f93 | 1071 | |
92b27b08 CW |
1072 | val = I915_READ(pll->pll_reg); |
1073 | cur_state = !!(val & DPLL_VCO_ENABLE); | |
1074 | WARN(cur_state != state, | |
1075 | "PCH PLL state for reg %x assertion failure (expected %s, current %s), val=%08x\n", | |
1076 | pll->pll_reg, state_string(state), state_string(cur_state), val); | |
1077 | ||
1078 | /* Make sure the selected PLL is correctly attached to the transcoder */ | |
1079 | if (crtc && HAS_PCH_CPT(dev_priv->dev)) { | |
d3ccbe86 JB |
1080 | u32 pch_dpll; |
1081 | ||
1082 | pch_dpll = I915_READ(PCH_DPLL_SEL); | |
92b27b08 CW |
1083 | cur_state = pll->pll_reg == _PCH_DPLL_B; |
1084 | if (!WARN(((pch_dpll >> (4 * crtc->pipe)) & 1) != cur_state, | |
1085 | "PLL[%d] not attached to this transcoder %d: %08x\n", | |
1086 | cur_state, crtc->pipe, pch_dpll)) { | |
1087 | cur_state = !!(val >> (4*crtc->pipe + 3)); | |
1088 | WARN(cur_state != state, | |
1089 | "PLL[%d] not %s on this transcoder %d: %08x\n", | |
1090 | pll->pll_reg == _PCH_DPLL_B, | |
1091 | state_string(state), | |
1092 | crtc->pipe, | |
1093 | val); | |
1094 | } | |
d3ccbe86 | 1095 | } |
040484af | 1096 | } |
92b27b08 CW |
1097 | #define assert_pch_pll_enabled(d, p, c) assert_pch_pll(d, p, c, true) |
1098 | #define assert_pch_pll_disabled(d, p, c) assert_pch_pll(d, p, c, false) | |
040484af JB |
1099 | |
1100 | static void assert_fdi_tx(struct drm_i915_private *dev_priv, | |
1101 | enum pipe pipe, bool state) | |
1102 | { | |
1103 | int reg; | |
1104 | u32 val; | |
1105 | bool cur_state; | |
1106 | ||
bf507ef7 ED |
1107 | if (IS_HASWELL(dev_priv->dev)) { |
1108 | /* On Haswell, DDI is used instead of FDI_TX_CTL */ | |
1109 | reg = DDI_FUNC_CTL(pipe); | |
1110 | val = I915_READ(reg); | |
1111 | cur_state = !!(val & PIPE_DDI_FUNC_ENABLE); | |
1112 | } else { | |
1113 | reg = FDI_TX_CTL(pipe); | |
1114 | val = I915_READ(reg); | |
1115 | cur_state = !!(val & FDI_TX_ENABLE); | |
1116 | } | |
040484af JB |
1117 | WARN(cur_state != state, |
1118 | "FDI TX state assertion failure (expected %s, current %s)\n", | |
1119 | state_string(state), state_string(cur_state)); | |
1120 | } | |
1121 | #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true) | |
1122 | #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false) | |
1123 | ||
1124 | static void assert_fdi_rx(struct drm_i915_private *dev_priv, | |
1125 | enum pipe pipe, bool state) | |
1126 | { | |
1127 | int reg; | |
1128 | u32 val; | |
1129 | bool cur_state; | |
1130 | ||
59c859d6 ED |
1131 | if (IS_HASWELL(dev_priv->dev) && pipe > 0) { |
1132 | DRM_ERROR("Attempting to enable FDI_RX on Haswell pipe > 0\n"); | |
1133 | return; | |
1134 | } else { | |
1135 | reg = FDI_RX_CTL(pipe); | |
1136 | val = I915_READ(reg); | |
1137 | cur_state = !!(val & FDI_RX_ENABLE); | |
1138 | } | |
040484af JB |
1139 | WARN(cur_state != state, |
1140 | "FDI RX state assertion failure (expected %s, current %s)\n", | |
1141 | state_string(state), state_string(cur_state)); | |
1142 | } | |
1143 | #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true) | |
1144 | #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false) | |
1145 | ||
1146 | static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv, | |
1147 | enum pipe pipe) | |
1148 | { | |
1149 | int reg; | |
1150 | u32 val; | |
1151 | ||
1152 | /* ILK FDI PLL is always enabled */ | |
1153 | if (dev_priv->info->gen == 5) | |
1154 | return; | |
1155 | ||
bf507ef7 ED |
1156 | /* On Haswell, DDI ports are responsible for the FDI PLL setup */ |
1157 | if (IS_HASWELL(dev_priv->dev)) | |
1158 | return; | |
1159 | ||
040484af JB |
1160 | reg = FDI_TX_CTL(pipe); |
1161 | val = I915_READ(reg); | |
1162 | WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n"); | |
1163 | } | |
1164 | ||
1165 | static void assert_fdi_rx_pll_enabled(struct drm_i915_private *dev_priv, | |
1166 | enum pipe pipe) | |
1167 | { | |
1168 | int reg; | |
1169 | u32 val; | |
1170 | ||
59c859d6 ED |
1171 | if (IS_HASWELL(dev_priv->dev) && pipe > 0) { |
1172 | DRM_ERROR("Attempting to enable FDI on Haswell with pipe > 0\n"); | |
1173 | return; | |
1174 | } | |
040484af JB |
1175 | reg = FDI_RX_CTL(pipe); |
1176 | val = I915_READ(reg); | |
1177 | WARN(!(val & FDI_RX_PLL_ENABLE), "FDI RX PLL assertion failure, should be active but is disabled\n"); | |
1178 | } | |
1179 | ||
ea0760cf JB |
1180 | static void assert_panel_unlocked(struct drm_i915_private *dev_priv, |
1181 | enum pipe pipe) | |
1182 | { | |
1183 | int pp_reg, lvds_reg; | |
1184 | u32 val; | |
1185 | enum pipe panel_pipe = PIPE_A; | |
0de3b485 | 1186 | bool locked = true; |
ea0760cf JB |
1187 | |
1188 | if (HAS_PCH_SPLIT(dev_priv->dev)) { | |
1189 | pp_reg = PCH_PP_CONTROL; | |
1190 | lvds_reg = PCH_LVDS; | |
1191 | } else { | |
1192 | pp_reg = PP_CONTROL; | |
1193 | lvds_reg = LVDS; | |
1194 | } | |
1195 | ||
1196 | val = I915_READ(pp_reg); | |
1197 | if (!(val & PANEL_POWER_ON) || | |
1198 | ((val & PANEL_UNLOCK_REGS) == PANEL_UNLOCK_REGS)) | |
1199 | locked = false; | |
1200 | ||
1201 | if (I915_READ(lvds_reg) & LVDS_PIPEB_SELECT) | |
1202 | panel_pipe = PIPE_B; | |
1203 | ||
1204 | WARN(panel_pipe == pipe && locked, | |
1205 | "panel assertion failure, pipe %c regs locked\n", | |
9db4a9c7 | 1206 | pipe_name(pipe)); |
ea0760cf JB |
1207 | } |
1208 | ||
b840d907 JB |
1209 | void assert_pipe(struct drm_i915_private *dev_priv, |
1210 | enum pipe pipe, bool state) | |
b24e7179 JB |
1211 | { |
1212 | int reg; | |
1213 | u32 val; | |
63d7bbe9 | 1214 | bool cur_state; |
b24e7179 | 1215 | |
8e636784 DV |
1216 | /* if we need the pipe A quirk it must be always on */ |
1217 | if (pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) | |
1218 | state = true; | |
1219 | ||
b24e7179 JB |
1220 | reg = PIPECONF(pipe); |
1221 | val = I915_READ(reg); | |
63d7bbe9 JB |
1222 | cur_state = !!(val & PIPECONF_ENABLE); |
1223 | WARN(cur_state != state, | |
1224 | "pipe %c assertion failure (expected %s, current %s)\n", | |
9db4a9c7 | 1225 | pipe_name(pipe), state_string(state), state_string(cur_state)); |
b24e7179 JB |
1226 | } |
1227 | ||
931872fc CW |
1228 | static void assert_plane(struct drm_i915_private *dev_priv, |
1229 | enum plane plane, bool state) | |
b24e7179 JB |
1230 | { |
1231 | int reg; | |
1232 | u32 val; | |
931872fc | 1233 | bool cur_state; |
b24e7179 JB |
1234 | |
1235 | reg = DSPCNTR(plane); | |
1236 | val = I915_READ(reg); | |
931872fc CW |
1237 | cur_state = !!(val & DISPLAY_PLANE_ENABLE); |
1238 | WARN(cur_state != state, | |
1239 | "plane %c assertion failure (expected %s, current %s)\n", | |
1240 | plane_name(plane), state_string(state), state_string(cur_state)); | |
b24e7179 JB |
1241 | } |
1242 | ||
931872fc CW |
1243 | #define assert_plane_enabled(d, p) assert_plane(d, p, true) |
1244 | #define assert_plane_disabled(d, p) assert_plane(d, p, false) | |
1245 | ||
b24e7179 JB |
1246 | static void assert_planes_disabled(struct drm_i915_private *dev_priv, |
1247 | enum pipe pipe) | |
1248 | { | |
1249 | int reg, i; | |
1250 | u32 val; | |
1251 | int cur_pipe; | |
1252 | ||
19ec1358 | 1253 | /* Planes are fixed to pipes on ILK+ */ |
28c05794 AJ |
1254 | if (HAS_PCH_SPLIT(dev_priv->dev)) { |
1255 | reg = DSPCNTR(pipe); | |
1256 | val = I915_READ(reg); | |
1257 | WARN((val & DISPLAY_PLANE_ENABLE), | |
1258 | "plane %c assertion failure, should be disabled but not\n", | |
1259 | plane_name(pipe)); | |
19ec1358 | 1260 | return; |
28c05794 | 1261 | } |
19ec1358 | 1262 | |
b24e7179 JB |
1263 | /* Need to check both planes against the pipe */ |
1264 | for (i = 0; i < 2; i++) { | |
1265 | reg = DSPCNTR(i); | |
1266 | val = I915_READ(reg); | |
1267 | cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >> | |
1268 | DISPPLANE_SEL_PIPE_SHIFT; | |
1269 | WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe, | |
9db4a9c7 JB |
1270 | "plane %c assertion failure, should be off on pipe %c but is still active\n", |
1271 | plane_name(i), pipe_name(pipe)); | |
b24e7179 JB |
1272 | } |
1273 | } | |
1274 | ||
92f2584a JB |
1275 | static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv) |
1276 | { | |
1277 | u32 val; | |
1278 | bool enabled; | |
1279 | ||
9d82aa17 ED |
1280 | if (HAS_PCH_LPT(dev_priv->dev)) { |
1281 | DRM_DEBUG_DRIVER("LPT does not has PCH refclk, skipping check\n"); | |
1282 | return; | |
1283 | } | |
1284 | ||
92f2584a JB |
1285 | val = I915_READ(PCH_DREF_CONTROL); |
1286 | enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK | | |
1287 | DREF_SUPERSPREAD_SOURCE_MASK)); | |
1288 | WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n"); | |
1289 | } | |
1290 | ||
1291 | static void assert_transcoder_disabled(struct drm_i915_private *dev_priv, | |
1292 | enum pipe pipe) | |
1293 | { | |
1294 | int reg; | |
1295 | u32 val; | |
1296 | bool enabled; | |
1297 | ||
1298 | reg = TRANSCONF(pipe); | |
1299 | val = I915_READ(reg); | |
1300 | enabled = !!(val & TRANS_ENABLE); | |
9db4a9c7 JB |
1301 | WARN(enabled, |
1302 | "transcoder assertion failed, should be off on pipe %c but is still active\n", | |
1303 | pipe_name(pipe)); | |
92f2584a JB |
1304 | } |
1305 | ||
4e634389 KP |
1306 | static bool dp_pipe_enabled(struct drm_i915_private *dev_priv, |
1307 | enum pipe pipe, u32 port_sel, u32 val) | |
f0575e92 KP |
1308 | { |
1309 | if ((val & DP_PORT_EN) == 0) | |
1310 | return false; | |
1311 | ||
1312 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1313 | u32 trans_dp_ctl_reg = TRANS_DP_CTL(pipe); | |
1314 | u32 trans_dp_ctl = I915_READ(trans_dp_ctl_reg); | |
1315 | if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel) | |
1316 | return false; | |
1317 | } else { | |
1318 | if ((val & DP_PIPE_MASK) != (pipe << 30)) | |
1319 | return false; | |
1320 | } | |
1321 | return true; | |
1322 | } | |
1323 | ||
1519b995 KP |
1324 | static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv, |
1325 | enum pipe pipe, u32 val) | |
1326 | { | |
1327 | if ((val & PORT_ENABLE) == 0) | |
1328 | return false; | |
1329 | ||
1330 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1331 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1332 | return false; | |
1333 | } else { | |
1334 | if ((val & TRANSCODER_MASK) != TRANSCODER(pipe)) | |
1335 | return false; | |
1336 | } | |
1337 | return true; | |
1338 | } | |
1339 | ||
1340 | static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv, | |
1341 | enum pipe pipe, u32 val) | |
1342 | { | |
1343 | if ((val & LVDS_PORT_EN) == 0) | |
1344 | return false; | |
1345 | ||
1346 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1347 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1348 | return false; | |
1349 | } else { | |
1350 | if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe)) | |
1351 | return false; | |
1352 | } | |
1353 | return true; | |
1354 | } | |
1355 | ||
1356 | static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv, | |
1357 | enum pipe pipe, u32 val) | |
1358 | { | |
1359 | if ((val & ADPA_DAC_ENABLE) == 0) | |
1360 | return false; | |
1361 | if (HAS_PCH_CPT(dev_priv->dev)) { | |
1362 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) | |
1363 | return false; | |
1364 | } else { | |
1365 | if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe)) | |
1366 | return false; | |
1367 | } | |
1368 | return true; | |
1369 | } | |
1370 | ||
291906f1 | 1371 | static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv, |
f0575e92 | 1372 | enum pipe pipe, int reg, u32 port_sel) |
291906f1 | 1373 | { |
47a05eca | 1374 | u32 val = I915_READ(reg); |
4e634389 | 1375 | WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val), |
291906f1 | 1376 | "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1377 | reg, pipe_name(pipe)); |
de9a35ab | 1378 | |
75c5da27 DV |
1379 | WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0 |
1380 | && (val & DP_PIPEB_SELECT), | |
de9a35ab | 1381 | "IBX PCH dp port still using transcoder B\n"); |
291906f1 JB |
1382 | } |
1383 | ||
1384 | static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv, | |
1385 | enum pipe pipe, int reg) | |
1386 | { | |
47a05eca | 1387 | u32 val = I915_READ(reg); |
e9a851ed | 1388 | WARN(hdmi_pipe_enabled(dev_priv, pipe, val), |
23c99e77 | 1389 | "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1390 | reg, pipe_name(pipe)); |
de9a35ab | 1391 | |
75c5da27 DV |
1392 | WARN(HAS_PCH_IBX(dev_priv->dev) && (val & PORT_ENABLE) == 0 |
1393 | && (val & SDVO_PIPE_B_SELECT), | |
de9a35ab | 1394 | "IBX PCH hdmi port still using transcoder B\n"); |
291906f1 JB |
1395 | } |
1396 | ||
1397 | static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, | |
1398 | enum pipe pipe) | |
1399 | { | |
1400 | int reg; | |
1401 | u32 val; | |
291906f1 | 1402 | |
f0575e92 KP |
1403 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); |
1404 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); | |
1405 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); | |
291906f1 JB |
1406 | |
1407 | reg = PCH_ADPA; | |
1408 | val = I915_READ(reg); | |
e9a851ed | 1409 | WARN(adpa_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1410 | "PCH VGA enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1411 | pipe_name(pipe)); |
291906f1 JB |
1412 | |
1413 | reg = PCH_LVDS; | |
1414 | val = I915_READ(reg); | |
e9a851ed | 1415 | WARN(lvds_pipe_enabled(dev_priv, pipe, val), |
291906f1 | 1416 | "PCH LVDS enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1417 | pipe_name(pipe)); |
291906f1 JB |
1418 | |
1419 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMIB); | |
1420 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMIC); | |
1421 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMID); | |
1422 | } | |
1423 | ||
63d7bbe9 JB |
1424 | /** |
1425 | * intel_enable_pll - enable a PLL | |
1426 | * @dev_priv: i915 private structure | |
1427 | * @pipe: pipe PLL to enable | |
1428 | * | |
1429 | * Enable @pipe's PLL so we can start pumping pixels from a plane. Check to | |
1430 | * make sure the PLL reg is writable first though, since the panel write | |
1431 | * protect mechanism may be enabled. | |
1432 | * | |
1433 | * Note! This is for pre-ILK only. | |
7434a255 TR |
1434 | * |
1435 | * Unfortunately needed by dvo_ns2501 since the dvo depends on it running. | |
63d7bbe9 | 1436 | */ |
a37b9b34 | 1437 | static void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) |
63d7bbe9 JB |
1438 | { |
1439 | int reg; | |
1440 | u32 val; | |
1441 | ||
1442 | /* No really, not for ILK+ */ | |
a0c4da24 | 1443 | BUG_ON(!IS_VALLEYVIEW(dev_priv->dev) && dev_priv->info->gen >= 5); |
63d7bbe9 JB |
1444 | |
1445 | /* PLL is protected by panel, make sure we can write it */ | |
1446 | if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev)) | |
1447 | assert_panel_unlocked(dev_priv, pipe); | |
1448 | ||
1449 | reg = DPLL(pipe); | |
1450 | val = I915_READ(reg); | |
1451 | val |= DPLL_VCO_ENABLE; | |
1452 | ||
1453 | /* We do this three times for luck */ | |
1454 | I915_WRITE(reg, val); | |
1455 | POSTING_READ(reg); | |
1456 | udelay(150); /* wait for warmup */ | |
1457 | I915_WRITE(reg, val); | |
1458 | POSTING_READ(reg); | |
1459 | udelay(150); /* wait for warmup */ | |
1460 | I915_WRITE(reg, val); | |
1461 | POSTING_READ(reg); | |
1462 | udelay(150); /* wait for warmup */ | |
1463 | } | |
1464 | ||
1465 | /** | |
1466 | * intel_disable_pll - disable a PLL | |
1467 | * @dev_priv: i915 private structure | |
1468 | * @pipe: pipe PLL to disable | |
1469 | * | |
1470 | * Disable the PLL for @pipe, making sure the pipe is off first. | |
1471 | * | |
1472 | * Note! This is for pre-ILK only. | |
1473 | */ | |
1474 | static void intel_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) | |
1475 | { | |
1476 | int reg; | |
1477 | u32 val; | |
1478 | ||
1479 | /* Don't disable pipe A or pipe A PLLs if needed */ | |
1480 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) | |
1481 | return; | |
1482 | ||
1483 | /* Make sure the pipe isn't still relying on us */ | |
1484 | assert_pipe_disabled(dev_priv, pipe); | |
1485 | ||
1486 | reg = DPLL(pipe); | |
1487 | val = I915_READ(reg); | |
1488 | val &= ~DPLL_VCO_ENABLE; | |
1489 | I915_WRITE(reg, val); | |
1490 | POSTING_READ(reg); | |
1491 | } | |
1492 | ||
a416edef ED |
1493 | /* SBI access */ |
1494 | static void | |
1495 | intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value) | |
1496 | { | |
1497 | unsigned long flags; | |
1498 | ||
1499 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
39fb50f6 | 1500 | if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_BUSY) == 0, |
a416edef ED |
1501 | 100)) { |
1502 | DRM_ERROR("timeout waiting for SBI to become ready\n"); | |
1503 | goto out_unlock; | |
1504 | } | |
1505 | ||
1506 | I915_WRITE(SBI_ADDR, | |
1507 | (reg << 16)); | |
1508 | I915_WRITE(SBI_DATA, | |
1509 | value); | |
1510 | I915_WRITE(SBI_CTL_STAT, | |
1511 | SBI_BUSY | | |
1512 | SBI_CTL_OP_CRWR); | |
1513 | ||
39fb50f6 | 1514 | if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0, |
a416edef ED |
1515 | 100)) { |
1516 | DRM_ERROR("timeout waiting for SBI to complete write transaction\n"); | |
1517 | goto out_unlock; | |
1518 | } | |
1519 | ||
1520 | out_unlock: | |
1521 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
1522 | } | |
1523 | ||
1524 | static u32 | |
1525 | intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg) | |
1526 | { | |
1527 | unsigned long flags; | |
39fb50f6 | 1528 | u32 value = 0; |
a416edef ED |
1529 | |
1530 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
39fb50f6 | 1531 | if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_BUSY) == 0, |
a416edef ED |
1532 | 100)) { |
1533 | DRM_ERROR("timeout waiting for SBI to become ready\n"); | |
1534 | goto out_unlock; | |
1535 | } | |
1536 | ||
1537 | I915_WRITE(SBI_ADDR, | |
1538 | (reg << 16)); | |
1539 | I915_WRITE(SBI_CTL_STAT, | |
1540 | SBI_BUSY | | |
1541 | SBI_CTL_OP_CRRD); | |
1542 | ||
39fb50f6 | 1543 | if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0, |
a416edef ED |
1544 | 100)) { |
1545 | DRM_ERROR("timeout waiting for SBI to complete read transaction\n"); | |
1546 | goto out_unlock; | |
1547 | } | |
1548 | ||
1549 | value = I915_READ(SBI_DATA); | |
1550 | ||
1551 | out_unlock: | |
1552 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
1553 | return value; | |
1554 | } | |
1555 | ||
92f2584a JB |
1556 | /** |
1557 | * intel_enable_pch_pll - enable PCH PLL | |
1558 | * @dev_priv: i915 private structure | |
1559 | * @pipe: pipe PLL to enable | |
1560 | * | |
1561 | * The PCH PLL needs to be enabled before the PCH transcoder, since it | |
1562 | * drives the transcoder clock. | |
1563 | */ | |
ee7b9f93 | 1564 | static void intel_enable_pch_pll(struct intel_crtc *intel_crtc) |
92f2584a | 1565 | { |
ee7b9f93 | 1566 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
48da64a8 | 1567 | struct intel_pch_pll *pll; |
92f2584a JB |
1568 | int reg; |
1569 | u32 val; | |
1570 | ||
48da64a8 | 1571 | /* PCH PLLs only available on ILK, SNB and IVB */ |
92f2584a | 1572 | BUG_ON(dev_priv->info->gen < 5); |
48da64a8 CW |
1573 | pll = intel_crtc->pch_pll; |
1574 | if (pll == NULL) | |
1575 | return; | |
1576 | ||
1577 | if (WARN_ON(pll->refcount == 0)) | |
1578 | return; | |
ee7b9f93 JB |
1579 | |
1580 | DRM_DEBUG_KMS("enable PCH PLL %x (active %d, on? %d)for crtc %d\n", | |
1581 | pll->pll_reg, pll->active, pll->on, | |
1582 | intel_crtc->base.base.id); | |
92f2584a JB |
1583 | |
1584 | /* PCH refclock must be enabled first */ | |
1585 | assert_pch_refclk_enabled(dev_priv); | |
1586 | ||
ee7b9f93 | 1587 | if (pll->active++ && pll->on) { |
92b27b08 | 1588 | assert_pch_pll_enabled(dev_priv, pll, NULL); |
ee7b9f93 JB |
1589 | return; |
1590 | } | |
1591 | ||
1592 | DRM_DEBUG_KMS("enabling PCH PLL %x\n", pll->pll_reg); | |
1593 | ||
1594 | reg = pll->pll_reg; | |
92f2584a JB |
1595 | val = I915_READ(reg); |
1596 | val |= DPLL_VCO_ENABLE; | |
1597 | I915_WRITE(reg, val); | |
1598 | POSTING_READ(reg); | |
1599 | udelay(200); | |
ee7b9f93 JB |
1600 | |
1601 | pll->on = true; | |
92f2584a JB |
1602 | } |
1603 | ||
ee7b9f93 | 1604 | static void intel_disable_pch_pll(struct intel_crtc *intel_crtc) |
92f2584a | 1605 | { |
ee7b9f93 JB |
1606 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
1607 | struct intel_pch_pll *pll = intel_crtc->pch_pll; | |
92f2584a | 1608 | int reg; |
ee7b9f93 | 1609 | u32 val; |
4c609cb8 | 1610 | |
92f2584a JB |
1611 | /* PCH only available on ILK+ */ |
1612 | BUG_ON(dev_priv->info->gen < 5); | |
ee7b9f93 JB |
1613 | if (pll == NULL) |
1614 | return; | |
92f2584a | 1615 | |
48da64a8 CW |
1616 | if (WARN_ON(pll->refcount == 0)) |
1617 | return; | |
7a419866 | 1618 | |
ee7b9f93 JB |
1619 | DRM_DEBUG_KMS("disable PCH PLL %x (active %d, on? %d) for crtc %d\n", |
1620 | pll->pll_reg, pll->active, pll->on, | |
1621 | intel_crtc->base.base.id); | |
7a419866 | 1622 | |
48da64a8 | 1623 | if (WARN_ON(pll->active == 0)) { |
92b27b08 | 1624 | assert_pch_pll_disabled(dev_priv, pll, NULL); |
48da64a8 CW |
1625 | return; |
1626 | } | |
1627 | ||
ee7b9f93 | 1628 | if (--pll->active) { |
92b27b08 | 1629 | assert_pch_pll_enabled(dev_priv, pll, NULL); |
7a419866 | 1630 | return; |
ee7b9f93 JB |
1631 | } |
1632 | ||
1633 | DRM_DEBUG_KMS("disabling PCH PLL %x\n", pll->pll_reg); | |
1634 | ||
1635 | /* Make sure transcoder isn't still depending on us */ | |
1636 | assert_transcoder_disabled(dev_priv, intel_crtc->pipe); | |
7a419866 | 1637 | |
ee7b9f93 | 1638 | reg = pll->pll_reg; |
92f2584a JB |
1639 | val = I915_READ(reg); |
1640 | val &= ~DPLL_VCO_ENABLE; | |
1641 | I915_WRITE(reg, val); | |
1642 | POSTING_READ(reg); | |
1643 | udelay(200); | |
ee7b9f93 JB |
1644 | |
1645 | pll->on = false; | |
92f2584a JB |
1646 | } |
1647 | ||
040484af JB |
1648 | static void intel_enable_transcoder(struct drm_i915_private *dev_priv, |
1649 | enum pipe pipe) | |
1650 | { | |
1651 | int reg; | |
5f7f726d | 1652 | u32 val, pipeconf_val; |
7c26e5c6 | 1653 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
040484af JB |
1654 | |
1655 | /* PCH only available on ILK+ */ | |
1656 | BUG_ON(dev_priv->info->gen < 5); | |
1657 | ||
1658 | /* Make sure PCH DPLL is enabled */ | |
92b27b08 CW |
1659 | assert_pch_pll_enabled(dev_priv, |
1660 | to_intel_crtc(crtc)->pch_pll, | |
1661 | to_intel_crtc(crtc)); | |
040484af JB |
1662 | |
1663 | /* FDI must be feeding us bits for PCH ports */ | |
1664 | assert_fdi_tx_enabled(dev_priv, pipe); | |
1665 | assert_fdi_rx_enabled(dev_priv, pipe); | |
1666 | ||
59c859d6 ED |
1667 | if (IS_HASWELL(dev_priv->dev) && pipe > 0) { |
1668 | DRM_ERROR("Attempting to enable transcoder on Haswell with pipe > 0\n"); | |
1669 | return; | |
1670 | } | |
040484af JB |
1671 | reg = TRANSCONF(pipe); |
1672 | val = I915_READ(reg); | |
5f7f726d | 1673 | pipeconf_val = I915_READ(PIPECONF(pipe)); |
e9bcff5c JB |
1674 | |
1675 | if (HAS_PCH_IBX(dev_priv->dev)) { | |
1676 | /* | |
1677 | * make the BPC in transcoder be consistent with | |
1678 | * that in pipeconf reg. | |
1679 | */ | |
1680 | val &= ~PIPE_BPC_MASK; | |
5f7f726d | 1681 | val |= pipeconf_val & PIPE_BPC_MASK; |
e9bcff5c | 1682 | } |
5f7f726d PZ |
1683 | |
1684 | val &= ~TRANS_INTERLACE_MASK; | |
1685 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK) | |
7c26e5c6 PZ |
1686 | if (HAS_PCH_IBX(dev_priv->dev) && |
1687 | intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) | |
1688 | val |= TRANS_LEGACY_INTERLACED_ILK; | |
1689 | else | |
1690 | val |= TRANS_INTERLACED; | |
5f7f726d PZ |
1691 | else |
1692 | val |= TRANS_PROGRESSIVE; | |
1693 | ||
040484af JB |
1694 | I915_WRITE(reg, val | TRANS_ENABLE); |
1695 | if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100)) | |
1696 | DRM_ERROR("failed to enable transcoder %d\n", pipe); | |
1697 | } | |
1698 | ||
1699 | static void intel_disable_transcoder(struct drm_i915_private *dev_priv, | |
1700 | enum pipe pipe) | |
1701 | { | |
1702 | int reg; | |
1703 | u32 val; | |
1704 | ||
1705 | /* FDI relies on the transcoder */ | |
1706 | assert_fdi_tx_disabled(dev_priv, pipe); | |
1707 | assert_fdi_rx_disabled(dev_priv, pipe); | |
1708 | ||
291906f1 JB |
1709 | /* Ports must be off as well */ |
1710 | assert_pch_ports_disabled(dev_priv, pipe); | |
1711 | ||
040484af JB |
1712 | reg = TRANSCONF(pipe); |
1713 | val = I915_READ(reg); | |
1714 | val &= ~TRANS_ENABLE; | |
1715 | I915_WRITE(reg, val); | |
1716 | /* wait for PCH transcoder off, transcoder state */ | |
1717 | if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50)) | |
4c9c18c2 | 1718 | DRM_ERROR("failed to disable transcoder %d\n", pipe); |
040484af JB |
1719 | } |
1720 | ||
b24e7179 | 1721 | /** |
309cfea8 | 1722 | * intel_enable_pipe - enable a pipe, asserting requirements |
b24e7179 JB |
1723 | * @dev_priv: i915 private structure |
1724 | * @pipe: pipe to enable | |
040484af | 1725 | * @pch_port: on ILK+, is this pipe driving a PCH port or not |
b24e7179 JB |
1726 | * |
1727 | * Enable @pipe, making sure that various hardware specific requirements | |
1728 | * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc. | |
1729 | * | |
1730 | * @pipe should be %PIPE_A or %PIPE_B. | |
1731 | * | |
1732 | * Will wait until the pipe is actually running (i.e. first vblank) before | |
1733 | * returning. | |
1734 | */ | |
040484af JB |
1735 | static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, |
1736 | bool pch_port) | |
b24e7179 JB |
1737 | { |
1738 | int reg; | |
1739 | u32 val; | |
1740 | ||
1741 | /* | |
1742 | * A pipe without a PLL won't actually be able to drive bits from | |
1743 | * a plane. On ILK+ the pipe PLLs are integrated, so we don't | |
1744 | * need the check. | |
1745 | */ | |
1746 | if (!HAS_PCH_SPLIT(dev_priv->dev)) | |
1747 | assert_pll_enabled(dev_priv, pipe); | |
040484af JB |
1748 | else { |
1749 | if (pch_port) { | |
1750 | /* if driving the PCH, we need FDI enabled */ | |
1751 | assert_fdi_rx_pll_enabled(dev_priv, pipe); | |
1752 | assert_fdi_tx_pll_enabled(dev_priv, pipe); | |
1753 | } | |
1754 | /* FIXME: assert CPU port conditions for SNB+ */ | |
1755 | } | |
b24e7179 JB |
1756 | |
1757 | reg = PIPECONF(pipe); | |
1758 | val = I915_READ(reg); | |
00d70b15 CW |
1759 | if (val & PIPECONF_ENABLE) |
1760 | return; | |
1761 | ||
1762 | I915_WRITE(reg, val | PIPECONF_ENABLE); | |
b24e7179 JB |
1763 | intel_wait_for_vblank(dev_priv->dev, pipe); |
1764 | } | |
1765 | ||
1766 | /** | |
309cfea8 | 1767 | * intel_disable_pipe - disable a pipe, asserting requirements |
b24e7179 JB |
1768 | * @dev_priv: i915 private structure |
1769 | * @pipe: pipe to disable | |
1770 | * | |
1771 | * Disable @pipe, making sure that various hardware specific requirements | |
1772 | * are met, if applicable, e.g. plane disabled, panel fitter off, etc. | |
1773 | * | |
1774 | * @pipe should be %PIPE_A or %PIPE_B. | |
1775 | * | |
1776 | * Will wait until the pipe has shut down before returning. | |
1777 | */ | |
1778 | static void intel_disable_pipe(struct drm_i915_private *dev_priv, | |
1779 | enum pipe pipe) | |
1780 | { | |
1781 | int reg; | |
1782 | u32 val; | |
1783 | ||
1784 | /* | |
1785 | * Make sure planes won't keep trying to pump pixels to us, | |
1786 | * or we might hang the display. | |
1787 | */ | |
1788 | assert_planes_disabled(dev_priv, pipe); | |
1789 | ||
1790 | /* Don't disable pipe A or pipe A PLLs if needed */ | |
1791 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) | |
1792 | return; | |
1793 | ||
1794 | reg = PIPECONF(pipe); | |
1795 | val = I915_READ(reg); | |
00d70b15 CW |
1796 | if ((val & PIPECONF_ENABLE) == 0) |
1797 | return; | |
1798 | ||
1799 | I915_WRITE(reg, val & ~PIPECONF_ENABLE); | |
b24e7179 JB |
1800 | intel_wait_for_pipe_off(dev_priv->dev, pipe); |
1801 | } | |
1802 | ||
d74362c9 KP |
1803 | /* |
1804 | * Plane regs are double buffered, going from enabled->disabled needs a | |
1805 | * trigger in order to latch. The display address reg provides this. | |
1806 | */ | |
6f1d69b0 | 1807 | void intel_flush_display_plane(struct drm_i915_private *dev_priv, |
d74362c9 KP |
1808 | enum plane plane) |
1809 | { | |
1810 | I915_WRITE(DSPADDR(plane), I915_READ(DSPADDR(plane))); | |
1811 | I915_WRITE(DSPSURF(plane), I915_READ(DSPSURF(plane))); | |
1812 | } | |
1813 | ||
b24e7179 JB |
1814 | /** |
1815 | * intel_enable_plane - enable a display plane on a given pipe | |
1816 | * @dev_priv: i915 private structure | |
1817 | * @plane: plane to enable | |
1818 | * @pipe: pipe being fed | |
1819 | * | |
1820 | * Enable @plane on @pipe, making sure that @pipe is running first. | |
1821 | */ | |
1822 | static void intel_enable_plane(struct drm_i915_private *dev_priv, | |
1823 | enum plane plane, enum pipe pipe) | |
1824 | { | |
1825 | int reg; | |
1826 | u32 val; | |
1827 | ||
1828 | /* If the pipe isn't enabled, we can't pump pixels and may hang */ | |
1829 | assert_pipe_enabled(dev_priv, pipe); | |
1830 | ||
1831 | reg = DSPCNTR(plane); | |
1832 | val = I915_READ(reg); | |
00d70b15 CW |
1833 | if (val & DISPLAY_PLANE_ENABLE) |
1834 | return; | |
1835 | ||
1836 | I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE); | |
d74362c9 | 1837 | intel_flush_display_plane(dev_priv, plane); |
b24e7179 JB |
1838 | intel_wait_for_vblank(dev_priv->dev, pipe); |
1839 | } | |
1840 | ||
b24e7179 JB |
1841 | /** |
1842 | * intel_disable_plane - disable a display plane | |
1843 | * @dev_priv: i915 private structure | |
1844 | * @plane: plane to disable | |
1845 | * @pipe: pipe consuming the data | |
1846 | * | |
1847 | * Disable @plane; should be an independent operation. | |
1848 | */ | |
1849 | static void intel_disable_plane(struct drm_i915_private *dev_priv, | |
1850 | enum plane plane, enum pipe pipe) | |
1851 | { | |
1852 | int reg; | |
1853 | u32 val; | |
1854 | ||
1855 | reg = DSPCNTR(plane); | |
1856 | val = I915_READ(reg); | |
00d70b15 CW |
1857 | if ((val & DISPLAY_PLANE_ENABLE) == 0) |
1858 | return; | |
1859 | ||
1860 | I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE); | |
b24e7179 JB |
1861 | intel_flush_display_plane(dev_priv, plane); |
1862 | intel_wait_for_vblank(dev_priv->dev, pipe); | |
1863 | } | |
1864 | ||
127bd2ac | 1865 | int |
48b956c5 | 1866 | intel_pin_and_fence_fb_obj(struct drm_device *dev, |
05394f39 | 1867 | struct drm_i915_gem_object *obj, |
919926ae | 1868 | struct intel_ring_buffer *pipelined) |
6b95a207 | 1869 | { |
ce453d81 | 1870 | struct drm_i915_private *dev_priv = dev->dev_private; |
6b95a207 KH |
1871 | u32 alignment; |
1872 | int ret; | |
1873 | ||
05394f39 | 1874 | switch (obj->tiling_mode) { |
6b95a207 | 1875 | case I915_TILING_NONE: |
534843da CW |
1876 | if (IS_BROADWATER(dev) || IS_CRESTLINE(dev)) |
1877 | alignment = 128 * 1024; | |
a6c45cf0 | 1878 | else if (INTEL_INFO(dev)->gen >= 4) |
534843da CW |
1879 | alignment = 4 * 1024; |
1880 | else | |
1881 | alignment = 64 * 1024; | |
6b95a207 KH |
1882 | break; |
1883 | case I915_TILING_X: | |
1884 | /* pin() will align the object as required by fence */ | |
1885 | alignment = 0; | |
1886 | break; | |
1887 | case I915_TILING_Y: | |
1888 | /* FIXME: Is this true? */ | |
1889 | DRM_ERROR("Y tiled not allowed for scan out buffers\n"); | |
1890 | return -EINVAL; | |
1891 | default: | |
1892 | BUG(); | |
1893 | } | |
1894 | ||
ce453d81 | 1895 | dev_priv->mm.interruptible = false; |
2da3b9b9 | 1896 | ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined); |
48b956c5 | 1897 | if (ret) |
ce453d81 | 1898 | goto err_interruptible; |
6b95a207 KH |
1899 | |
1900 | /* Install a fence for tiled scan-out. Pre-i965 always needs a | |
1901 | * fence, whereas 965+ only requires a fence if using | |
1902 | * framebuffer compression. For simplicity, we always install | |
1903 | * a fence as the cost is not that onerous. | |
1904 | */ | |
06d98131 | 1905 | ret = i915_gem_object_get_fence(obj); |
9a5a53b3 CW |
1906 | if (ret) |
1907 | goto err_unpin; | |
1690e1eb | 1908 | |
9a5a53b3 | 1909 | i915_gem_object_pin_fence(obj); |
6b95a207 | 1910 | |
ce453d81 | 1911 | dev_priv->mm.interruptible = true; |
6b95a207 | 1912 | return 0; |
48b956c5 CW |
1913 | |
1914 | err_unpin: | |
1915 | i915_gem_object_unpin(obj); | |
ce453d81 CW |
1916 | err_interruptible: |
1917 | dev_priv->mm.interruptible = true; | |
48b956c5 | 1918 | return ret; |
6b95a207 KH |
1919 | } |
1920 | ||
1690e1eb CW |
1921 | void intel_unpin_fb_obj(struct drm_i915_gem_object *obj) |
1922 | { | |
1923 | i915_gem_object_unpin_fence(obj); | |
1924 | i915_gem_object_unpin(obj); | |
1925 | } | |
1926 | ||
c2c75131 DV |
1927 | /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel |
1928 | * is assumed to be a power-of-two. */ | |
1929 | static unsigned long gen4_compute_dspaddr_offset_xtiled(int *x, int *y, | |
1930 | unsigned int bpp, | |
1931 | unsigned int pitch) | |
1932 | { | |
1933 | int tile_rows, tiles; | |
1934 | ||
1935 | tile_rows = *y / 8; | |
1936 | *y %= 8; | |
1937 | tiles = *x / (512/bpp); | |
1938 | *x %= 512/bpp; | |
1939 | ||
1940 | return tile_rows * pitch * 8 + tiles * 4096; | |
1941 | } | |
1942 | ||
17638cd6 JB |
1943 | static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb, |
1944 | int x, int y) | |
81255565 JB |
1945 | { |
1946 | struct drm_device *dev = crtc->dev; | |
1947 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1948 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1949 | struct intel_framebuffer *intel_fb; | |
05394f39 | 1950 | struct drm_i915_gem_object *obj; |
81255565 | 1951 | int plane = intel_crtc->plane; |
e506a0c6 | 1952 | unsigned long linear_offset; |
81255565 | 1953 | u32 dspcntr; |
5eddb70b | 1954 | u32 reg; |
81255565 JB |
1955 | |
1956 | switch (plane) { | |
1957 | case 0: | |
1958 | case 1: | |
1959 | break; | |
1960 | default: | |
1961 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); | |
1962 | return -EINVAL; | |
1963 | } | |
1964 | ||
1965 | intel_fb = to_intel_framebuffer(fb); | |
1966 | obj = intel_fb->obj; | |
81255565 | 1967 | |
5eddb70b CW |
1968 | reg = DSPCNTR(plane); |
1969 | dspcntr = I915_READ(reg); | |
81255565 JB |
1970 | /* Mask out pixel format bits in case we change it */ |
1971 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
1972 | switch (fb->bits_per_pixel) { | |
1973 | case 8: | |
1974 | dspcntr |= DISPPLANE_8BPP; | |
1975 | break; | |
1976 | case 16: | |
1977 | if (fb->depth == 15) | |
1978 | dspcntr |= DISPPLANE_15_16BPP; | |
1979 | else | |
1980 | dspcntr |= DISPPLANE_16BPP; | |
1981 | break; | |
1982 | case 24: | |
1983 | case 32: | |
1984 | dspcntr |= DISPPLANE_32BPP_NO_ALPHA; | |
1985 | break; | |
1986 | default: | |
17638cd6 | 1987 | DRM_ERROR("Unknown color depth %d\n", fb->bits_per_pixel); |
81255565 JB |
1988 | return -EINVAL; |
1989 | } | |
a6c45cf0 | 1990 | if (INTEL_INFO(dev)->gen >= 4) { |
05394f39 | 1991 | if (obj->tiling_mode != I915_TILING_NONE) |
81255565 JB |
1992 | dspcntr |= DISPPLANE_TILED; |
1993 | else | |
1994 | dspcntr &= ~DISPPLANE_TILED; | |
1995 | } | |
1996 | ||
5eddb70b | 1997 | I915_WRITE(reg, dspcntr); |
81255565 | 1998 | |
e506a0c6 | 1999 | linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); |
81255565 | 2000 | |
c2c75131 DV |
2001 | if (INTEL_INFO(dev)->gen >= 4) { |
2002 | intel_crtc->dspaddr_offset = | |
2003 | gen4_compute_dspaddr_offset_xtiled(&x, &y, | |
2004 | fb->bits_per_pixel / 8, | |
2005 | fb->pitches[0]); | |
2006 | linear_offset -= intel_crtc->dspaddr_offset; | |
2007 | } else { | |
e506a0c6 | 2008 | intel_crtc->dspaddr_offset = linear_offset; |
c2c75131 | 2009 | } |
e506a0c6 DV |
2010 | |
2011 | DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n", | |
2012 | obj->gtt_offset, linear_offset, x, y, fb->pitches[0]); | |
01f2c773 | 2013 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
a6c45cf0 | 2014 | if (INTEL_INFO(dev)->gen >= 4) { |
c2c75131 DV |
2015 | I915_MODIFY_DISPBASE(DSPSURF(plane), |
2016 | obj->gtt_offset + intel_crtc->dspaddr_offset); | |
5eddb70b | 2017 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
e506a0c6 | 2018 | I915_WRITE(DSPLINOFF(plane), linear_offset); |
5eddb70b | 2019 | } else |
e506a0c6 | 2020 | I915_WRITE(DSPADDR(plane), obj->gtt_offset + linear_offset); |
5eddb70b | 2021 | POSTING_READ(reg); |
81255565 | 2022 | |
17638cd6 JB |
2023 | return 0; |
2024 | } | |
2025 | ||
2026 | static int ironlake_update_plane(struct drm_crtc *crtc, | |
2027 | struct drm_framebuffer *fb, int x, int y) | |
2028 | { | |
2029 | struct drm_device *dev = crtc->dev; | |
2030 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2031 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2032 | struct intel_framebuffer *intel_fb; | |
2033 | struct drm_i915_gem_object *obj; | |
2034 | int plane = intel_crtc->plane; | |
e506a0c6 | 2035 | unsigned long linear_offset; |
17638cd6 JB |
2036 | u32 dspcntr; |
2037 | u32 reg; | |
2038 | ||
2039 | switch (plane) { | |
2040 | case 0: | |
2041 | case 1: | |
27f8227b | 2042 | case 2: |
17638cd6 JB |
2043 | break; |
2044 | default: | |
2045 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); | |
2046 | return -EINVAL; | |
2047 | } | |
2048 | ||
2049 | intel_fb = to_intel_framebuffer(fb); | |
2050 | obj = intel_fb->obj; | |
2051 | ||
2052 | reg = DSPCNTR(plane); | |
2053 | dspcntr = I915_READ(reg); | |
2054 | /* Mask out pixel format bits in case we change it */ | |
2055 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
2056 | switch (fb->bits_per_pixel) { | |
2057 | case 8: | |
2058 | dspcntr |= DISPPLANE_8BPP; | |
2059 | break; | |
2060 | case 16: | |
2061 | if (fb->depth != 16) | |
2062 | return -EINVAL; | |
2063 | ||
2064 | dspcntr |= DISPPLANE_16BPP; | |
2065 | break; | |
2066 | case 24: | |
2067 | case 32: | |
2068 | if (fb->depth == 24) | |
2069 | dspcntr |= DISPPLANE_32BPP_NO_ALPHA; | |
2070 | else if (fb->depth == 30) | |
2071 | dspcntr |= DISPPLANE_32BPP_30BIT_NO_ALPHA; | |
2072 | else | |
2073 | return -EINVAL; | |
2074 | break; | |
2075 | default: | |
2076 | DRM_ERROR("Unknown color depth %d\n", fb->bits_per_pixel); | |
2077 | return -EINVAL; | |
2078 | } | |
2079 | ||
2080 | if (obj->tiling_mode != I915_TILING_NONE) | |
2081 | dspcntr |= DISPPLANE_TILED; | |
2082 | else | |
2083 | dspcntr &= ~DISPPLANE_TILED; | |
2084 | ||
2085 | /* must disable */ | |
2086 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; | |
2087 | ||
2088 | I915_WRITE(reg, dspcntr); | |
2089 | ||
e506a0c6 | 2090 | linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); |
c2c75131 DV |
2091 | intel_crtc->dspaddr_offset = |
2092 | gen4_compute_dspaddr_offset_xtiled(&x, &y, | |
2093 | fb->bits_per_pixel / 8, | |
2094 | fb->pitches[0]); | |
2095 | linear_offset -= intel_crtc->dspaddr_offset; | |
17638cd6 | 2096 | |
e506a0c6 DV |
2097 | DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n", |
2098 | obj->gtt_offset, linear_offset, x, y, fb->pitches[0]); | |
01f2c773 | 2099 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
c2c75131 DV |
2100 | I915_MODIFY_DISPBASE(DSPSURF(plane), |
2101 | obj->gtt_offset + intel_crtc->dspaddr_offset); | |
17638cd6 | 2102 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
e506a0c6 | 2103 | I915_WRITE(DSPLINOFF(plane), linear_offset); |
17638cd6 JB |
2104 | POSTING_READ(reg); |
2105 | ||
2106 | return 0; | |
2107 | } | |
2108 | ||
2109 | /* Assume fb object is pinned & idle & fenced and just update base pointers */ | |
2110 | static int | |
2111 | intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb, | |
2112 | int x, int y, enum mode_set_atomic state) | |
2113 | { | |
2114 | struct drm_device *dev = crtc->dev; | |
2115 | struct drm_i915_private *dev_priv = dev->dev_private; | |
17638cd6 | 2116 | |
6b8e6ed0 CW |
2117 | if (dev_priv->display.disable_fbc) |
2118 | dev_priv->display.disable_fbc(dev); | |
3dec0095 | 2119 | intel_increase_pllclock(crtc); |
81255565 | 2120 | |
6b8e6ed0 | 2121 | return dev_priv->display.update_plane(crtc, fb, x, y); |
81255565 JB |
2122 | } |
2123 | ||
14667a4b CW |
2124 | static int |
2125 | intel_finish_fb(struct drm_framebuffer *old_fb) | |
2126 | { | |
2127 | struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj; | |
2128 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; | |
2129 | bool was_interruptible = dev_priv->mm.interruptible; | |
2130 | int ret; | |
2131 | ||
2132 | wait_event(dev_priv->pending_flip_queue, | |
2133 | atomic_read(&dev_priv->mm.wedged) || | |
2134 | atomic_read(&obj->pending_flip) == 0); | |
2135 | ||
2136 | /* Big Hammer, we also need to ensure that any pending | |
2137 | * MI_WAIT_FOR_EVENT inside a user batch buffer on the | |
2138 | * current scanout is retired before unpinning the old | |
2139 | * framebuffer. | |
2140 | * | |
2141 | * This should only fail upon a hung GPU, in which case we | |
2142 | * can safely continue. | |
2143 | */ | |
2144 | dev_priv->mm.interruptible = false; | |
2145 | ret = i915_gem_object_finish_gpu(obj); | |
2146 | dev_priv->mm.interruptible = was_interruptible; | |
2147 | ||
2148 | return ret; | |
2149 | } | |
2150 | ||
5c3b82e2 | 2151 | static int |
3c4fdcfb | 2152 | intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, |
94352cf9 | 2153 | struct drm_framebuffer *fb) |
79e53945 JB |
2154 | { |
2155 | struct drm_device *dev = crtc->dev; | |
6b8e6ed0 | 2156 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 JB |
2157 | struct drm_i915_master_private *master_priv; |
2158 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
94352cf9 | 2159 | struct drm_framebuffer *old_fb; |
5c3b82e2 | 2160 | int ret; |
79e53945 JB |
2161 | |
2162 | /* no fb bound */ | |
94352cf9 | 2163 | if (!fb) { |
a5071c2f | 2164 | DRM_ERROR("No FB bound\n"); |
5c3b82e2 CW |
2165 | return 0; |
2166 | } | |
2167 | ||
5826eca5 ED |
2168 | if(intel_crtc->plane > dev_priv->num_pipe) { |
2169 | DRM_ERROR("no plane for crtc: plane %d, num_pipes %d\n", | |
2170 | intel_crtc->plane, | |
2171 | dev_priv->num_pipe); | |
5c3b82e2 | 2172 | return -EINVAL; |
79e53945 JB |
2173 | } |
2174 | ||
5c3b82e2 | 2175 | mutex_lock(&dev->struct_mutex); |
265db958 | 2176 | ret = intel_pin_and_fence_fb_obj(dev, |
94352cf9 | 2177 | to_intel_framebuffer(fb)->obj, |
919926ae | 2178 | NULL); |
5c3b82e2 CW |
2179 | if (ret != 0) { |
2180 | mutex_unlock(&dev->struct_mutex); | |
a5071c2f | 2181 | DRM_ERROR("pin & fence failed\n"); |
5c3b82e2 CW |
2182 | return ret; |
2183 | } | |
79e53945 | 2184 | |
94352cf9 DV |
2185 | if (crtc->fb) |
2186 | intel_finish_fb(crtc->fb); | |
265db958 | 2187 | |
94352cf9 | 2188 | ret = dev_priv->display.update_plane(crtc, fb, x, y); |
4e6cfefc | 2189 | if (ret) { |
94352cf9 | 2190 | intel_unpin_fb_obj(to_intel_framebuffer(fb)->obj); |
5c3b82e2 | 2191 | mutex_unlock(&dev->struct_mutex); |
a5071c2f | 2192 | DRM_ERROR("failed to update base address\n"); |
4e6cfefc | 2193 | return ret; |
79e53945 | 2194 | } |
3c4fdcfb | 2195 | |
94352cf9 DV |
2196 | old_fb = crtc->fb; |
2197 | crtc->fb = fb; | |
6c4c86f5 DV |
2198 | crtc->x = x; |
2199 | crtc->y = y; | |
94352cf9 | 2200 | |
b7f1de28 CW |
2201 | if (old_fb) { |
2202 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
1690e1eb | 2203 | intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj); |
b7f1de28 | 2204 | } |
652c393a | 2205 | |
6b8e6ed0 | 2206 | intel_update_fbc(dev); |
5c3b82e2 | 2207 | mutex_unlock(&dev->struct_mutex); |
79e53945 JB |
2208 | |
2209 | if (!dev->primary->master) | |
5c3b82e2 | 2210 | return 0; |
79e53945 JB |
2211 | |
2212 | master_priv = dev->primary->master->driver_priv; | |
2213 | if (!master_priv->sarea_priv) | |
5c3b82e2 | 2214 | return 0; |
79e53945 | 2215 | |
265db958 | 2216 | if (intel_crtc->pipe) { |
79e53945 JB |
2217 | master_priv->sarea_priv->pipeB_x = x; |
2218 | master_priv->sarea_priv->pipeB_y = y; | |
5c3b82e2 CW |
2219 | } else { |
2220 | master_priv->sarea_priv->pipeA_x = x; | |
2221 | master_priv->sarea_priv->pipeA_y = y; | |
79e53945 | 2222 | } |
5c3b82e2 CW |
2223 | |
2224 | return 0; | |
79e53945 JB |
2225 | } |
2226 | ||
5eddb70b | 2227 | static void ironlake_set_pll_edp(struct drm_crtc *crtc, int clock) |
32f9d658 ZW |
2228 | { |
2229 | struct drm_device *dev = crtc->dev; | |
2230 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2231 | u32 dpa_ctl; | |
2232 | ||
28c97730 | 2233 | DRM_DEBUG_KMS("eDP PLL enable for clock %d\n", clock); |
32f9d658 ZW |
2234 | dpa_ctl = I915_READ(DP_A); |
2235 | dpa_ctl &= ~DP_PLL_FREQ_MASK; | |
2236 | ||
2237 | if (clock < 200000) { | |
2238 | u32 temp; | |
2239 | dpa_ctl |= DP_PLL_FREQ_160MHZ; | |
2240 | /* workaround for 160Mhz: | |
2241 | 1) program 0x4600c bits 15:0 = 0x8124 | |
2242 | 2) program 0x46010 bit 0 = 1 | |
2243 | 3) program 0x46034 bit 24 = 1 | |
2244 | 4) program 0x64000 bit 14 = 1 | |
2245 | */ | |
2246 | temp = I915_READ(0x4600c); | |
2247 | temp &= 0xffff0000; | |
2248 | I915_WRITE(0x4600c, temp | 0x8124); | |
2249 | ||
2250 | temp = I915_READ(0x46010); | |
2251 | I915_WRITE(0x46010, temp | 1); | |
2252 | ||
2253 | temp = I915_READ(0x46034); | |
2254 | I915_WRITE(0x46034, temp | (1 << 24)); | |
2255 | } else { | |
2256 | dpa_ctl |= DP_PLL_FREQ_270MHZ; | |
2257 | } | |
2258 | I915_WRITE(DP_A, dpa_ctl); | |
2259 | ||
5eddb70b | 2260 | POSTING_READ(DP_A); |
32f9d658 ZW |
2261 | udelay(500); |
2262 | } | |
2263 | ||
5e84e1a4 ZW |
2264 | static void intel_fdi_normal_train(struct drm_crtc *crtc) |
2265 | { | |
2266 | struct drm_device *dev = crtc->dev; | |
2267 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2268 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2269 | int pipe = intel_crtc->pipe; | |
2270 | u32 reg, temp; | |
2271 | ||
2272 | /* enable normal train */ | |
2273 | reg = FDI_TX_CTL(pipe); | |
2274 | temp = I915_READ(reg); | |
61e499bf | 2275 | if (IS_IVYBRIDGE(dev)) { |
357555c0 JB |
2276 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
2277 | temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE; | |
61e499bf KP |
2278 | } else { |
2279 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2280 | temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE; | |
357555c0 | 2281 | } |
5e84e1a4 ZW |
2282 | I915_WRITE(reg, temp); |
2283 | ||
2284 | reg = FDI_RX_CTL(pipe); | |
2285 | temp = I915_READ(reg); | |
2286 | if (HAS_PCH_CPT(dev)) { | |
2287 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2288 | temp |= FDI_LINK_TRAIN_NORMAL_CPT; | |
2289 | } else { | |
2290 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2291 | temp |= FDI_LINK_TRAIN_NONE; | |
2292 | } | |
2293 | I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); | |
2294 | ||
2295 | /* wait one idle pattern time */ | |
2296 | POSTING_READ(reg); | |
2297 | udelay(1000); | |
357555c0 JB |
2298 | |
2299 | /* IVB wants error correction enabled */ | |
2300 | if (IS_IVYBRIDGE(dev)) | |
2301 | I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE | | |
2302 | FDI_FE_ERRC_ENABLE); | |
5e84e1a4 ZW |
2303 | } |
2304 | ||
291427f5 JB |
2305 | static void cpt_phase_pointer_enable(struct drm_device *dev, int pipe) |
2306 | { | |
2307 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2308 | u32 flags = I915_READ(SOUTH_CHICKEN1); | |
2309 | ||
2310 | flags |= FDI_PHASE_SYNC_OVR(pipe); | |
2311 | I915_WRITE(SOUTH_CHICKEN1, flags); /* once to unlock... */ | |
2312 | flags |= FDI_PHASE_SYNC_EN(pipe); | |
2313 | I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to enable */ | |
2314 | POSTING_READ(SOUTH_CHICKEN1); | |
2315 | } | |
2316 | ||
8db9d77b ZW |
2317 | /* The FDI link training functions for ILK/Ibexpeak. */ |
2318 | static void ironlake_fdi_link_train(struct drm_crtc *crtc) | |
2319 | { | |
2320 | struct drm_device *dev = crtc->dev; | |
2321 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2322 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2323 | int pipe = intel_crtc->pipe; | |
0fc932b8 | 2324 | int plane = intel_crtc->plane; |
5eddb70b | 2325 | u32 reg, temp, tries; |
8db9d77b | 2326 | |
0fc932b8 JB |
2327 | /* FDI needs bits from pipe & plane first */ |
2328 | assert_pipe_enabled(dev_priv, pipe); | |
2329 | assert_plane_enabled(dev_priv, plane); | |
2330 | ||
e1a44743 AJ |
2331 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
2332 | for train result */ | |
5eddb70b CW |
2333 | reg = FDI_RX_IMR(pipe); |
2334 | temp = I915_READ(reg); | |
e1a44743 AJ |
2335 | temp &= ~FDI_RX_SYMBOL_LOCK; |
2336 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
2337 | I915_WRITE(reg, temp); |
2338 | I915_READ(reg); | |
e1a44743 AJ |
2339 | udelay(150); |
2340 | ||
8db9d77b | 2341 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
2342 | reg = FDI_TX_CTL(pipe); |
2343 | temp = I915_READ(reg); | |
77ffb597 AJ |
2344 | temp &= ~(7 << 19); |
2345 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
8db9d77b ZW |
2346 | temp &= ~FDI_LINK_TRAIN_NONE; |
2347 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b | 2348 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 2349 | |
5eddb70b CW |
2350 | reg = FDI_RX_CTL(pipe); |
2351 | temp = I915_READ(reg); | |
8db9d77b ZW |
2352 | temp &= ~FDI_LINK_TRAIN_NONE; |
2353 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b CW |
2354 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2355 | ||
2356 | POSTING_READ(reg); | |
8db9d77b ZW |
2357 | udelay(150); |
2358 | ||
5b2adf89 | 2359 | /* Ironlake workaround, enable clock pointer after FDI enable*/ |
6f06ce18 JB |
2360 | if (HAS_PCH_IBX(dev)) { |
2361 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); | |
2362 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR | | |
2363 | FDI_RX_PHASE_SYNC_POINTER_EN); | |
2364 | } | |
5b2adf89 | 2365 | |
5eddb70b | 2366 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 2367 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 2368 | temp = I915_READ(reg); |
8db9d77b ZW |
2369 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2370 | ||
2371 | if ((temp & FDI_RX_BIT_LOCK)) { | |
2372 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
5eddb70b | 2373 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
8db9d77b ZW |
2374 | break; |
2375 | } | |
8db9d77b | 2376 | } |
e1a44743 | 2377 | if (tries == 5) |
5eddb70b | 2378 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
2379 | |
2380 | /* Train 2 */ | |
5eddb70b CW |
2381 | reg = FDI_TX_CTL(pipe); |
2382 | temp = I915_READ(reg); | |
8db9d77b ZW |
2383 | temp &= ~FDI_LINK_TRAIN_NONE; |
2384 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 2385 | I915_WRITE(reg, temp); |
8db9d77b | 2386 | |
5eddb70b CW |
2387 | reg = FDI_RX_CTL(pipe); |
2388 | temp = I915_READ(reg); | |
8db9d77b ZW |
2389 | temp &= ~FDI_LINK_TRAIN_NONE; |
2390 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 2391 | I915_WRITE(reg, temp); |
8db9d77b | 2392 | |
5eddb70b CW |
2393 | POSTING_READ(reg); |
2394 | udelay(150); | |
8db9d77b | 2395 | |
5eddb70b | 2396 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 2397 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 2398 | temp = I915_READ(reg); |
8db9d77b ZW |
2399 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2400 | ||
2401 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
5eddb70b | 2402 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
8db9d77b ZW |
2403 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
2404 | break; | |
2405 | } | |
8db9d77b | 2406 | } |
e1a44743 | 2407 | if (tries == 5) |
5eddb70b | 2408 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
2409 | |
2410 | DRM_DEBUG_KMS("FDI train done\n"); | |
5c5313c8 | 2411 | |
8db9d77b ZW |
2412 | } |
2413 | ||
0206e353 | 2414 | static const int snb_b_fdi_train_param[] = { |
8db9d77b ZW |
2415 | FDI_LINK_TRAIN_400MV_0DB_SNB_B, |
2416 | FDI_LINK_TRAIN_400MV_6DB_SNB_B, | |
2417 | FDI_LINK_TRAIN_600MV_3_5DB_SNB_B, | |
2418 | FDI_LINK_TRAIN_800MV_0DB_SNB_B, | |
2419 | }; | |
2420 | ||
2421 | /* The FDI link training functions for SNB/Cougarpoint. */ | |
2422 | static void gen6_fdi_link_train(struct drm_crtc *crtc) | |
2423 | { | |
2424 | struct drm_device *dev = crtc->dev; | |
2425 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2426 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2427 | int pipe = intel_crtc->pipe; | |
fa37d39e | 2428 | u32 reg, temp, i, retry; |
8db9d77b | 2429 | |
e1a44743 AJ |
2430 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
2431 | for train result */ | |
5eddb70b CW |
2432 | reg = FDI_RX_IMR(pipe); |
2433 | temp = I915_READ(reg); | |
e1a44743 AJ |
2434 | temp &= ~FDI_RX_SYMBOL_LOCK; |
2435 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
2436 | I915_WRITE(reg, temp); |
2437 | ||
2438 | POSTING_READ(reg); | |
e1a44743 AJ |
2439 | udelay(150); |
2440 | ||
8db9d77b | 2441 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
2442 | reg = FDI_TX_CTL(pipe); |
2443 | temp = I915_READ(reg); | |
77ffb597 AJ |
2444 | temp &= ~(7 << 19); |
2445 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
8db9d77b ZW |
2446 | temp &= ~FDI_LINK_TRAIN_NONE; |
2447 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2448 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2449 | /* SNB-B */ | |
2450 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
5eddb70b | 2451 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 2452 | |
5eddb70b CW |
2453 | reg = FDI_RX_CTL(pipe); |
2454 | temp = I915_READ(reg); | |
8db9d77b ZW |
2455 | if (HAS_PCH_CPT(dev)) { |
2456 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2457 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
2458 | } else { | |
2459 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2460 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2461 | } | |
5eddb70b CW |
2462 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2463 | ||
2464 | POSTING_READ(reg); | |
8db9d77b ZW |
2465 | udelay(150); |
2466 | ||
291427f5 JB |
2467 | if (HAS_PCH_CPT(dev)) |
2468 | cpt_phase_pointer_enable(dev, pipe); | |
2469 | ||
0206e353 | 2470 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
2471 | reg = FDI_TX_CTL(pipe); |
2472 | temp = I915_READ(reg); | |
8db9d77b ZW |
2473 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
2474 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
2475 | I915_WRITE(reg, temp); |
2476 | ||
2477 | POSTING_READ(reg); | |
8db9d77b ZW |
2478 | udelay(500); |
2479 | ||
fa37d39e SP |
2480 | for (retry = 0; retry < 5; retry++) { |
2481 | reg = FDI_RX_IIR(pipe); | |
2482 | temp = I915_READ(reg); | |
2483 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2484 | if (temp & FDI_RX_BIT_LOCK) { | |
2485 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
2486 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
2487 | break; | |
2488 | } | |
2489 | udelay(50); | |
8db9d77b | 2490 | } |
fa37d39e SP |
2491 | if (retry < 5) |
2492 | break; | |
8db9d77b ZW |
2493 | } |
2494 | if (i == 4) | |
5eddb70b | 2495 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
2496 | |
2497 | /* Train 2 */ | |
5eddb70b CW |
2498 | reg = FDI_TX_CTL(pipe); |
2499 | temp = I915_READ(reg); | |
8db9d77b ZW |
2500 | temp &= ~FDI_LINK_TRAIN_NONE; |
2501 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
2502 | if (IS_GEN6(dev)) { | |
2503 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2504 | /* SNB-B */ | |
2505 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
2506 | } | |
5eddb70b | 2507 | I915_WRITE(reg, temp); |
8db9d77b | 2508 | |
5eddb70b CW |
2509 | reg = FDI_RX_CTL(pipe); |
2510 | temp = I915_READ(reg); | |
8db9d77b ZW |
2511 | if (HAS_PCH_CPT(dev)) { |
2512 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2513 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
2514 | } else { | |
2515 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2516 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
2517 | } | |
5eddb70b CW |
2518 | I915_WRITE(reg, temp); |
2519 | ||
2520 | POSTING_READ(reg); | |
8db9d77b ZW |
2521 | udelay(150); |
2522 | ||
0206e353 | 2523 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
2524 | reg = FDI_TX_CTL(pipe); |
2525 | temp = I915_READ(reg); | |
8db9d77b ZW |
2526 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
2527 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
2528 | I915_WRITE(reg, temp); |
2529 | ||
2530 | POSTING_READ(reg); | |
8db9d77b ZW |
2531 | udelay(500); |
2532 | ||
fa37d39e SP |
2533 | for (retry = 0; retry < 5; retry++) { |
2534 | reg = FDI_RX_IIR(pipe); | |
2535 | temp = I915_READ(reg); | |
2536 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2537 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
2538 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
2539 | DRM_DEBUG_KMS("FDI train 2 done.\n"); | |
2540 | break; | |
2541 | } | |
2542 | udelay(50); | |
8db9d77b | 2543 | } |
fa37d39e SP |
2544 | if (retry < 5) |
2545 | break; | |
8db9d77b ZW |
2546 | } |
2547 | if (i == 4) | |
5eddb70b | 2548 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
2549 | |
2550 | DRM_DEBUG_KMS("FDI train done.\n"); | |
2551 | } | |
2552 | ||
357555c0 JB |
2553 | /* Manual link training for Ivy Bridge A0 parts */ |
2554 | static void ivb_manual_fdi_link_train(struct drm_crtc *crtc) | |
2555 | { | |
2556 | struct drm_device *dev = crtc->dev; | |
2557 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2558 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2559 | int pipe = intel_crtc->pipe; | |
2560 | u32 reg, temp, i; | |
2561 | ||
2562 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit | |
2563 | for train result */ | |
2564 | reg = FDI_RX_IMR(pipe); | |
2565 | temp = I915_READ(reg); | |
2566 | temp &= ~FDI_RX_SYMBOL_LOCK; | |
2567 | temp &= ~FDI_RX_BIT_LOCK; | |
2568 | I915_WRITE(reg, temp); | |
2569 | ||
2570 | POSTING_READ(reg); | |
2571 | udelay(150); | |
2572 | ||
2573 | /* enable CPU FDI TX and PCH FDI RX */ | |
2574 | reg = FDI_TX_CTL(pipe); | |
2575 | temp = I915_READ(reg); | |
2576 | temp &= ~(7 << 19); | |
2577 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
2578 | temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB); | |
2579 | temp |= FDI_LINK_TRAIN_PATTERN_1_IVB; | |
2580 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2581 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
c4f9c4c2 | 2582 | temp |= FDI_COMPOSITE_SYNC; |
357555c0 JB |
2583 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
2584 | ||
2585 | reg = FDI_RX_CTL(pipe); | |
2586 | temp = I915_READ(reg); | |
2587 | temp &= ~FDI_LINK_TRAIN_AUTO; | |
2588 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2589 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
c4f9c4c2 | 2590 | temp |= FDI_COMPOSITE_SYNC; |
357555c0 JB |
2591 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2592 | ||
2593 | POSTING_READ(reg); | |
2594 | udelay(150); | |
2595 | ||
291427f5 JB |
2596 | if (HAS_PCH_CPT(dev)) |
2597 | cpt_phase_pointer_enable(dev, pipe); | |
2598 | ||
0206e353 | 2599 | for (i = 0; i < 4; i++) { |
357555c0 JB |
2600 | reg = FDI_TX_CTL(pipe); |
2601 | temp = I915_READ(reg); | |
2602 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2603 | temp |= snb_b_fdi_train_param[i]; | |
2604 | I915_WRITE(reg, temp); | |
2605 | ||
2606 | POSTING_READ(reg); | |
2607 | udelay(500); | |
2608 | ||
2609 | reg = FDI_RX_IIR(pipe); | |
2610 | temp = I915_READ(reg); | |
2611 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2612 | ||
2613 | if (temp & FDI_RX_BIT_LOCK || | |
2614 | (I915_READ(reg) & FDI_RX_BIT_LOCK)) { | |
2615 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
2616 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
2617 | break; | |
2618 | } | |
2619 | } | |
2620 | if (i == 4) | |
2621 | DRM_ERROR("FDI train 1 fail!\n"); | |
2622 | ||
2623 | /* Train 2 */ | |
2624 | reg = FDI_TX_CTL(pipe); | |
2625 | temp = I915_READ(reg); | |
2626 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; | |
2627 | temp |= FDI_LINK_TRAIN_PATTERN_2_IVB; | |
2628 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2629 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
2630 | I915_WRITE(reg, temp); | |
2631 | ||
2632 | reg = FDI_RX_CTL(pipe); | |
2633 | temp = I915_READ(reg); | |
2634 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2635 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
2636 | I915_WRITE(reg, temp); | |
2637 | ||
2638 | POSTING_READ(reg); | |
2639 | udelay(150); | |
2640 | ||
0206e353 | 2641 | for (i = 0; i < 4; i++) { |
357555c0 JB |
2642 | reg = FDI_TX_CTL(pipe); |
2643 | temp = I915_READ(reg); | |
2644 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2645 | temp |= snb_b_fdi_train_param[i]; | |
2646 | I915_WRITE(reg, temp); | |
2647 | ||
2648 | POSTING_READ(reg); | |
2649 | udelay(500); | |
2650 | ||
2651 | reg = FDI_RX_IIR(pipe); | |
2652 | temp = I915_READ(reg); | |
2653 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2654 | ||
2655 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
2656 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
2657 | DRM_DEBUG_KMS("FDI train 2 done.\n"); | |
2658 | break; | |
2659 | } | |
2660 | } | |
2661 | if (i == 4) | |
2662 | DRM_ERROR("FDI train 2 fail!\n"); | |
2663 | ||
2664 | DRM_DEBUG_KMS("FDI train done.\n"); | |
2665 | } | |
2666 | ||
88cefb6c | 2667 | static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc) |
2c07245f | 2668 | { |
88cefb6c | 2669 | struct drm_device *dev = intel_crtc->base.dev; |
2c07245f | 2670 | struct drm_i915_private *dev_priv = dev->dev_private; |
2c07245f | 2671 | int pipe = intel_crtc->pipe; |
5eddb70b | 2672 | u32 reg, temp; |
79e53945 | 2673 | |
c64e311e | 2674 | /* Write the TU size bits so error detection works */ |
5eddb70b CW |
2675 | I915_WRITE(FDI_RX_TUSIZE1(pipe), |
2676 | I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK); | |
c64e311e | 2677 | |
c98e9dcf | 2678 | /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ |
5eddb70b CW |
2679 | reg = FDI_RX_CTL(pipe); |
2680 | temp = I915_READ(reg); | |
2681 | temp &= ~((0x7 << 19) | (0x7 << 16)); | |
c98e9dcf | 2682 | temp |= (intel_crtc->fdi_lanes - 1) << 19; |
5eddb70b CW |
2683 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; |
2684 | I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE); | |
2685 | ||
2686 | POSTING_READ(reg); | |
c98e9dcf JB |
2687 | udelay(200); |
2688 | ||
2689 | /* Switch from Rawclk to PCDclk */ | |
5eddb70b CW |
2690 | temp = I915_READ(reg); |
2691 | I915_WRITE(reg, temp | FDI_PCDCLK); | |
2692 | ||
2693 | POSTING_READ(reg); | |
c98e9dcf JB |
2694 | udelay(200); |
2695 | ||
bf507ef7 ED |
2696 | /* On Haswell, the PLL configuration for ports and pipes is handled |
2697 | * separately, as part of DDI setup */ | |
2698 | if (!IS_HASWELL(dev)) { | |
2699 | /* Enable CPU FDI TX PLL, always on for Ironlake */ | |
2700 | reg = FDI_TX_CTL(pipe); | |
2701 | temp = I915_READ(reg); | |
2702 | if ((temp & FDI_TX_PLL_ENABLE) == 0) { | |
2703 | I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE); | |
5eddb70b | 2704 | |
bf507ef7 ED |
2705 | POSTING_READ(reg); |
2706 | udelay(100); | |
2707 | } | |
6be4a607 | 2708 | } |
0e23b99d JB |
2709 | } |
2710 | ||
88cefb6c DV |
2711 | static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc) |
2712 | { | |
2713 | struct drm_device *dev = intel_crtc->base.dev; | |
2714 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2715 | int pipe = intel_crtc->pipe; | |
2716 | u32 reg, temp; | |
2717 | ||
2718 | /* Switch from PCDclk to Rawclk */ | |
2719 | reg = FDI_RX_CTL(pipe); | |
2720 | temp = I915_READ(reg); | |
2721 | I915_WRITE(reg, temp & ~FDI_PCDCLK); | |
2722 | ||
2723 | /* Disable CPU FDI TX PLL */ | |
2724 | reg = FDI_TX_CTL(pipe); | |
2725 | temp = I915_READ(reg); | |
2726 | I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE); | |
2727 | ||
2728 | POSTING_READ(reg); | |
2729 | udelay(100); | |
2730 | ||
2731 | reg = FDI_RX_CTL(pipe); | |
2732 | temp = I915_READ(reg); | |
2733 | I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE); | |
2734 | ||
2735 | /* Wait for the clocks to turn off. */ | |
2736 | POSTING_READ(reg); | |
2737 | udelay(100); | |
2738 | } | |
2739 | ||
291427f5 JB |
2740 | static void cpt_phase_pointer_disable(struct drm_device *dev, int pipe) |
2741 | { | |
2742 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2743 | u32 flags = I915_READ(SOUTH_CHICKEN1); | |
2744 | ||
2745 | flags &= ~(FDI_PHASE_SYNC_EN(pipe)); | |
2746 | I915_WRITE(SOUTH_CHICKEN1, flags); /* once to disable... */ | |
2747 | flags &= ~(FDI_PHASE_SYNC_OVR(pipe)); | |
2748 | I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to lock */ | |
2749 | POSTING_READ(SOUTH_CHICKEN1); | |
2750 | } | |
0fc932b8 JB |
2751 | static void ironlake_fdi_disable(struct drm_crtc *crtc) |
2752 | { | |
2753 | struct drm_device *dev = crtc->dev; | |
2754 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2755 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2756 | int pipe = intel_crtc->pipe; | |
2757 | u32 reg, temp; | |
2758 | ||
2759 | /* disable CPU FDI tx and PCH FDI rx */ | |
2760 | reg = FDI_TX_CTL(pipe); | |
2761 | temp = I915_READ(reg); | |
2762 | I915_WRITE(reg, temp & ~FDI_TX_ENABLE); | |
2763 | POSTING_READ(reg); | |
2764 | ||
2765 | reg = FDI_RX_CTL(pipe); | |
2766 | temp = I915_READ(reg); | |
2767 | temp &= ~(0x7 << 16); | |
2768 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; | |
2769 | I915_WRITE(reg, temp & ~FDI_RX_ENABLE); | |
2770 | ||
2771 | POSTING_READ(reg); | |
2772 | udelay(100); | |
2773 | ||
2774 | /* Ironlake workaround, disable clock pointer after downing FDI */ | |
6f06ce18 JB |
2775 | if (HAS_PCH_IBX(dev)) { |
2776 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); | |
0fc932b8 JB |
2777 | I915_WRITE(FDI_RX_CHICKEN(pipe), |
2778 | I915_READ(FDI_RX_CHICKEN(pipe) & | |
6f06ce18 | 2779 | ~FDI_RX_PHASE_SYNC_POINTER_EN)); |
291427f5 JB |
2780 | } else if (HAS_PCH_CPT(dev)) { |
2781 | cpt_phase_pointer_disable(dev, pipe); | |
6f06ce18 | 2782 | } |
0fc932b8 JB |
2783 | |
2784 | /* still set train pattern 1 */ | |
2785 | reg = FDI_TX_CTL(pipe); | |
2786 | temp = I915_READ(reg); | |
2787 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2788 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2789 | I915_WRITE(reg, temp); | |
2790 | ||
2791 | reg = FDI_RX_CTL(pipe); | |
2792 | temp = I915_READ(reg); | |
2793 | if (HAS_PCH_CPT(dev)) { | |
2794 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2795 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
2796 | } else { | |
2797 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2798 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2799 | } | |
2800 | /* BPC in FDI rx is consistent with that in PIPECONF */ | |
2801 | temp &= ~(0x07 << 16); | |
2802 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; | |
2803 | I915_WRITE(reg, temp); | |
2804 | ||
2805 | POSTING_READ(reg); | |
2806 | udelay(100); | |
2807 | } | |
2808 | ||
e6c3a2a6 CW |
2809 | static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc) |
2810 | { | |
0f91128d | 2811 | struct drm_device *dev = crtc->dev; |
e6c3a2a6 CW |
2812 | |
2813 | if (crtc->fb == NULL) | |
2814 | return; | |
2815 | ||
0f91128d CW |
2816 | mutex_lock(&dev->struct_mutex); |
2817 | intel_finish_fb(crtc->fb); | |
2818 | mutex_unlock(&dev->struct_mutex); | |
e6c3a2a6 CW |
2819 | } |
2820 | ||
040484af JB |
2821 | static bool intel_crtc_driving_pch(struct drm_crtc *crtc) |
2822 | { | |
2823 | struct drm_device *dev = crtc->dev; | |
228d3e36 | 2824 | struct intel_encoder *intel_encoder; |
040484af JB |
2825 | |
2826 | /* | |
2827 | * If there's a non-PCH eDP on this crtc, it must be DP_A, and that | |
2828 | * must be driven by its own crtc; no sharing is possible. | |
2829 | */ | |
228d3e36 | 2830 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
040484af | 2831 | |
6ee8bab0 ED |
2832 | /* On Haswell, LPT PCH handles the VGA connection via FDI, and Haswell |
2833 | * CPU handles all others */ | |
2834 | if (IS_HASWELL(dev)) { | |
2835 | /* It is still unclear how this will work on PPT, so throw up a warning */ | |
2836 | WARN_ON(!HAS_PCH_LPT(dev)); | |
2837 | ||
228d3e36 | 2838 | if (intel_encoder->type == INTEL_OUTPUT_ANALOG) { |
6ee8bab0 ED |
2839 | DRM_DEBUG_KMS("Haswell detected DAC encoder, assuming is PCH\n"); |
2840 | return true; | |
2841 | } else { | |
2842 | DRM_DEBUG_KMS("Haswell detected encoder %d, assuming is CPU\n", | |
228d3e36 | 2843 | intel_encoder->type); |
6ee8bab0 ED |
2844 | return false; |
2845 | } | |
2846 | } | |
2847 | ||
228d3e36 | 2848 | switch (intel_encoder->type) { |
040484af | 2849 | case INTEL_OUTPUT_EDP: |
228d3e36 | 2850 | if (!intel_encoder_is_pch_edp(&intel_encoder->base)) |
040484af JB |
2851 | return false; |
2852 | continue; | |
2853 | } | |
2854 | } | |
2855 | ||
2856 | return true; | |
2857 | } | |
2858 | ||
e615efe4 ED |
2859 | /* Program iCLKIP clock to the desired frequency */ |
2860 | static void lpt_program_iclkip(struct drm_crtc *crtc) | |
2861 | { | |
2862 | struct drm_device *dev = crtc->dev; | |
2863 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2864 | u32 divsel, phaseinc, auxdiv, phasedir = 0; | |
2865 | u32 temp; | |
2866 | ||
2867 | /* It is necessary to ungate the pixclk gate prior to programming | |
2868 | * the divisors, and gate it back when it is done. | |
2869 | */ | |
2870 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE); | |
2871 | ||
2872 | /* Disable SSCCTL */ | |
2873 | intel_sbi_write(dev_priv, SBI_SSCCTL6, | |
2874 | intel_sbi_read(dev_priv, SBI_SSCCTL6) | | |
2875 | SBI_SSCCTL_DISABLE); | |
2876 | ||
2877 | /* 20MHz is a corner case which is out of range for the 7-bit divisor */ | |
2878 | if (crtc->mode.clock == 20000) { | |
2879 | auxdiv = 1; | |
2880 | divsel = 0x41; | |
2881 | phaseinc = 0x20; | |
2882 | } else { | |
2883 | /* The iCLK virtual clock root frequency is in MHz, | |
2884 | * but the crtc->mode.clock in in KHz. To get the divisors, | |
2885 | * it is necessary to divide one by another, so we | |
2886 | * convert the virtual clock precision to KHz here for higher | |
2887 | * precision. | |
2888 | */ | |
2889 | u32 iclk_virtual_root_freq = 172800 * 1000; | |
2890 | u32 iclk_pi_range = 64; | |
2891 | u32 desired_divisor, msb_divisor_value, pi_value; | |
2892 | ||
2893 | desired_divisor = (iclk_virtual_root_freq / crtc->mode.clock); | |
2894 | msb_divisor_value = desired_divisor / iclk_pi_range; | |
2895 | pi_value = desired_divisor % iclk_pi_range; | |
2896 | ||
2897 | auxdiv = 0; | |
2898 | divsel = msb_divisor_value - 2; | |
2899 | phaseinc = pi_value; | |
2900 | } | |
2901 | ||
2902 | /* This should not happen with any sane values */ | |
2903 | WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) & | |
2904 | ~SBI_SSCDIVINTPHASE_DIVSEL_MASK); | |
2905 | WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) & | |
2906 | ~SBI_SSCDIVINTPHASE_INCVAL_MASK); | |
2907 | ||
2908 | DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n", | |
2909 | crtc->mode.clock, | |
2910 | auxdiv, | |
2911 | divsel, | |
2912 | phasedir, | |
2913 | phaseinc); | |
2914 | ||
2915 | /* Program SSCDIVINTPHASE6 */ | |
2916 | temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6); | |
2917 | temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK; | |
2918 | temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel); | |
2919 | temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK; | |
2920 | temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc); | |
2921 | temp |= SBI_SSCDIVINTPHASE_DIR(phasedir); | |
2922 | temp |= SBI_SSCDIVINTPHASE_PROPAGATE; | |
2923 | ||
2924 | intel_sbi_write(dev_priv, | |
2925 | SBI_SSCDIVINTPHASE6, | |
2926 | temp); | |
2927 | ||
2928 | /* Program SSCAUXDIV */ | |
2929 | temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6); | |
2930 | temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1); | |
2931 | temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv); | |
2932 | intel_sbi_write(dev_priv, | |
2933 | SBI_SSCAUXDIV6, | |
2934 | temp); | |
2935 | ||
2936 | ||
2937 | /* Enable modulator and associated divider */ | |
2938 | temp = intel_sbi_read(dev_priv, SBI_SSCCTL6); | |
2939 | temp &= ~SBI_SSCCTL_DISABLE; | |
2940 | intel_sbi_write(dev_priv, | |
2941 | SBI_SSCCTL6, | |
2942 | temp); | |
2943 | ||
2944 | /* Wait for initialization time */ | |
2945 | udelay(24); | |
2946 | ||
2947 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE); | |
2948 | } | |
2949 | ||
f67a559d JB |
2950 | /* |
2951 | * Enable PCH resources required for PCH ports: | |
2952 | * - PCH PLLs | |
2953 | * - FDI training & RX/TX | |
2954 | * - update transcoder timings | |
2955 | * - DP transcoding bits | |
2956 | * - transcoder | |
2957 | */ | |
2958 | static void ironlake_pch_enable(struct drm_crtc *crtc) | |
0e23b99d JB |
2959 | { |
2960 | struct drm_device *dev = crtc->dev; | |
2961 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2962 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2963 | int pipe = intel_crtc->pipe; | |
ee7b9f93 | 2964 | u32 reg, temp; |
2c07245f | 2965 | |
e7e164db CW |
2966 | assert_transcoder_disabled(dev_priv, pipe); |
2967 | ||
c98e9dcf | 2968 | /* For PCH output, training FDI link */ |
674cf967 | 2969 | dev_priv->display.fdi_link_train(crtc); |
2c07245f | 2970 | |
6f13b7b5 CW |
2971 | intel_enable_pch_pll(intel_crtc); |
2972 | ||
e615efe4 ED |
2973 | if (HAS_PCH_LPT(dev)) { |
2974 | DRM_DEBUG_KMS("LPT detected: programming iCLKIP\n"); | |
2975 | lpt_program_iclkip(crtc); | |
2976 | } else if (HAS_PCH_CPT(dev)) { | |
ee7b9f93 | 2977 | u32 sel; |
4b645f14 | 2978 | |
c98e9dcf | 2979 | temp = I915_READ(PCH_DPLL_SEL); |
ee7b9f93 JB |
2980 | switch (pipe) { |
2981 | default: | |
2982 | case 0: | |
2983 | temp |= TRANSA_DPLL_ENABLE; | |
2984 | sel = TRANSA_DPLLB_SEL; | |
2985 | break; | |
2986 | case 1: | |
2987 | temp |= TRANSB_DPLL_ENABLE; | |
2988 | sel = TRANSB_DPLLB_SEL; | |
2989 | break; | |
2990 | case 2: | |
2991 | temp |= TRANSC_DPLL_ENABLE; | |
2992 | sel = TRANSC_DPLLB_SEL; | |
2993 | break; | |
d64311ab | 2994 | } |
ee7b9f93 JB |
2995 | if (intel_crtc->pch_pll->pll_reg == _PCH_DPLL_B) |
2996 | temp |= sel; | |
2997 | else | |
2998 | temp &= ~sel; | |
c98e9dcf | 2999 | I915_WRITE(PCH_DPLL_SEL, temp); |
c98e9dcf | 3000 | } |
5eddb70b | 3001 | |
d9b6cb56 JB |
3002 | /* set transcoder timing, panel must allow it */ |
3003 | assert_panel_unlocked(dev_priv, pipe); | |
5eddb70b CW |
3004 | I915_WRITE(TRANS_HTOTAL(pipe), I915_READ(HTOTAL(pipe))); |
3005 | I915_WRITE(TRANS_HBLANK(pipe), I915_READ(HBLANK(pipe))); | |
3006 | I915_WRITE(TRANS_HSYNC(pipe), I915_READ(HSYNC(pipe))); | |
8db9d77b | 3007 | |
5eddb70b CW |
3008 | I915_WRITE(TRANS_VTOTAL(pipe), I915_READ(VTOTAL(pipe))); |
3009 | I915_WRITE(TRANS_VBLANK(pipe), I915_READ(VBLANK(pipe))); | |
3010 | I915_WRITE(TRANS_VSYNC(pipe), I915_READ(VSYNC(pipe))); | |
0529a0d9 | 3011 | I915_WRITE(TRANS_VSYNCSHIFT(pipe), I915_READ(VSYNCSHIFT(pipe))); |
8db9d77b | 3012 | |
f57e1e3a ED |
3013 | if (!IS_HASWELL(dev)) |
3014 | intel_fdi_normal_train(crtc); | |
5e84e1a4 | 3015 | |
c98e9dcf JB |
3016 | /* For PCH DP, enable TRANS_DP_CTL */ |
3017 | if (HAS_PCH_CPT(dev) && | |
417e822d KP |
3018 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || |
3019 | intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) { | |
9325c9f0 | 3020 | u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) >> 5; |
5eddb70b CW |
3021 | reg = TRANS_DP_CTL(pipe); |
3022 | temp = I915_READ(reg); | |
3023 | temp &= ~(TRANS_DP_PORT_SEL_MASK | | |
220cad3c EA |
3024 | TRANS_DP_SYNC_MASK | |
3025 | TRANS_DP_BPC_MASK); | |
5eddb70b CW |
3026 | temp |= (TRANS_DP_OUTPUT_ENABLE | |
3027 | TRANS_DP_ENH_FRAMING); | |
9325c9f0 | 3028 | temp |= bpc << 9; /* same format but at 11:9 */ |
c98e9dcf JB |
3029 | |
3030 | if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) | |
5eddb70b | 3031 | temp |= TRANS_DP_HSYNC_ACTIVE_HIGH; |
c98e9dcf | 3032 | if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC) |
5eddb70b | 3033 | temp |= TRANS_DP_VSYNC_ACTIVE_HIGH; |
c98e9dcf JB |
3034 | |
3035 | switch (intel_trans_dp_port_sel(crtc)) { | |
3036 | case PCH_DP_B: | |
5eddb70b | 3037 | temp |= TRANS_DP_PORT_SEL_B; |
c98e9dcf JB |
3038 | break; |
3039 | case PCH_DP_C: | |
5eddb70b | 3040 | temp |= TRANS_DP_PORT_SEL_C; |
c98e9dcf JB |
3041 | break; |
3042 | case PCH_DP_D: | |
5eddb70b | 3043 | temp |= TRANS_DP_PORT_SEL_D; |
c98e9dcf JB |
3044 | break; |
3045 | default: | |
3046 | DRM_DEBUG_KMS("Wrong PCH DP port return. Guess port B\n"); | |
5eddb70b | 3047 | temp |= TRANS_DP_PORT_SEL_B; |
c98e9dcf | 3048 | break; |
32f9d658 | 3049 | } |
2c07245f | 3050 | |
5eddb70b | 3051 | I915_WRITE(reg, temp); |
6be4a607 | 3052 | } |
b52eb4dc | 3053 | |
040484af | 3054 | intel_enable_transcoder(dev_priv, pipe); |
f67a559d JB |
3055 | } |
3056 | ||
ee7b9f93 JB |
3057 | static void intel_put_pch_pll(struct intel_crtc *intel_crtc) |
3058 | { | |
3059 | struct intel_pch_pll *pll = intel_crtc->pch_pll; | |
3060 | ||
3061 | if (pll == NULL) | |
3062 | return; | |
3063 | ||
3064 | if (pll->refcount == 0) { | |
3065 | WARN(1, "bad PCH PLL refcount\n"); | |
3066 | return; | |
3067 | } | |
3068 | ||
3069 | --pll->refcount; | |
3070 | intel_crtc->pch_pll = NULL; | |
3071 | } | |
3072 | ||
3073 | static struct intel_pch_pll *intel_get_pch_pll(struct intel_crtc *intel_crtc, u32 dpll, u32 fp) | |
3074 | { | |
3075 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; | |
3076 | struct intel_pch_pll *pll; | |
3077 | int i; | |
3078 | ||
3079 | pll = intel_crtc->pch_pll; | |
3080 | if (pll) { | |
3081 | DRM_DEBUG_KMS("CRTC:%d reusing existing PCH PLL %x\n", | |
3082 | intel_crtc->base.base.id, pll->pll_reg); | |
3083 | goto prepare; | |
3084 | } | |
3085 | ||
98b6bd99 DV |
3086 | if (HAS_PCH_IBX(dev_priv->dev)) { |
3087 | /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */ | |
3088 | i = intel_crtc->pipe; | |
3089 | pll = &dev_priv->pch_plls[i]; | |
3090 | ||
3091 | DRM_DEBUG_KMS("CRTC:%d using pre-allocated PCH PLL %x\n", | |
3092 | intel_crtc->base.base.id, pll->pll_reg); | |
3093 | ||
3094 | goto found; | |
3095 | } | |
3096 | ||
ee7b9f93 JB |
3097 | for (i = 0; i < dev_priv->num_pch_pll; i++) { |
3098 | pll = &dev_priv->pch_plls[i]; | |
3099 | ||
3100 | /* Only want to check enabled timings first */ | |
3101 | if (pll->refcount == 0) | |
3102 | continue; | |
3103 | ||
3104 | if (dpll == (I915_READ(pll->pll_reg) & 0x7fffffff) && | |
3105 | fp == I915_READ(pll->fp0_reg)) { | |
3106 | DRM_DEBUG_KMS("CRTC:%d sharing existing PCH PLL %x (refcount %d, ative %d)\n", | |
3107 | intel_crtc->base.base.id, | |
3108 | pll->pll_reg, pll->refcount, pll->active); | |
3109 | ||
3110 | goto found; | |
3111 | } | |
3112 | } | |
3113 | ||
3114 | /* Ok no matching timings, maybe there's a free one? */ | |
3115 | for (i = 0; i < dev_priv->num_pch_pll; i++) { | |
3116 | pll = &dev_priv->pch_plls[i]; | |
3117 | if (pll->refcount == 0) { | |
3118 | DRM_DEBUG_KMS("CRTC:%d allocated PCH PLL %x\n", | |
3119 | intel_crtc->base.base.id, pll->pll_reg); | |
3120 | goto found; | |
3121 | } | |
3122 | } | |
3123 | ||
3124 | return NULL; | |
3125 | ||
3126 | found: | |
3127 | intel_crtc->pch_pll = pll; | |
3128 | pll->refcount++; | |
3129 | DRM_DEBUG_DRIVER("using pll %d for pipe %d\n", i, intel_crtc->pipe); | |
3130 | prepare: /* separate function? */ | |
3131 | DRM_DEBUG_DRIVER("switching PLL %x off\n", pll->pll_reg); | |
ee7b9f93 | 3132 | |
e04c7350 CW |
3133 | /* Wait for the clocks to stabilize before rewriting the regs */ |
3134 | I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE); | |
ee7b9f93 JB |
3135 | POSTING_READ(pll->pll_reg); |
3136 | udelay(150); | |
e04c7350 CW |
3137 | |
3138 | I915_WRITE(pll->fp0_reg, fp); | |
3139 | I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE); | |
ee7b9f93 JB |
3140 | pll->on = false; |
3141 | return pll; | |
3142 | } | |
3143 | ||
d4270e57 JB |
3144 | void intel_cpt_verify_modeset(struct drm_device *dev, int pipe) |
3145 | { | |
3146 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3147 | int dslreg = PIPEDSL(pipe), tc2reg = TRANS_CHICKEN2(pipe); | |
3148 | u32 temp; | |
3149 | ||
3150 | temp = I915_READ(dslreg); | |
3151 | udelay(500); | |
3152 | if (wait_for(I915_READ(dslreg) != temp, 5)) { | |
3153 | /* Without this, mode sets may fail silently on FDI */ | |
3154 | I915_WRITE(tc2reg, TRANS_AUTOTRAIN_GEN_STALL_DIS); | |
3155 | udelay(250); | |
3156 | I915_WRITE(tc2reg, 0); | |
3157 | if (wait_for(I915_READ(dslreg) != temp, 5)) | |
3158 | DRM_ERROR("mode set failed: pipe %d stuck\n", pipe); | |
3159 | } | |
3160 | } | |
3161 | ||
f67a559d JB |
3162 | static void ironlake_crtc_enable(struct drm_crtc *crtc) |
3163 | { | |
3164 | struct drm_device *dev = crtc->dev; | |
3165 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3166 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3167 | struct intel_encoder *encoder; |
f67a559d JB |
3168 | int pipe = intel_crtc->pipe; |
3169 | int plane = intel_crtc->plane; | |
3170 | u32 temp; | |
3171 | bool is_pch_port; | |
3172 | ||
08a48469 DV |
3173 | WARN_ON(!crtc->enabled); |
3174 | ||
f67a559d JB |
3175 | if (intel_crtc->active) |
3176 | return; | |
3177 | ||
3178 | intel_crtc->active = true; | |
3179 | intel_update_watermarks(dev); | |
3180 | ||
3181 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
3182 | temp = I915_READ(PCH_LVDS); | |
3183 | if ((temp & LVDS_PORT_EN) == 0) | |
3184 | I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN); | |
3185 | } | |
3186 | ||
3187 | is_pch_port = intel_crtc_driving_pch(crtc); | |
3188 | ||
46b6f814 | 3189 | if (is_pch_port) { |
88cefb6c | 3190 | ironlake_fdi_pll_enable(intel_crtc); |
46b6f814 DV |
3191 | } else { |
3192 | assert_fdi_tx_disabled(dev_priv, pipe); | |
3193 | assert_fdi_rx_disabled(dev_priv, pipe); | |
3194 | } | |
f67a559d | 3195 | |
bf49ec8c DV |
3196 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3197 | if (encoder->pre_enable) | |
3198 | encoder->pre_enable(encoder); | |
3199 | ||
f67a559d JB |
3200 | /* Enable panel fitting for LVDS */ |
3201 | if (dev_priv->pch_pf_size && | |
3202 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) || HAS_eDP)) { | |
3203 | /* Force use of hard-coded filter coefficients | |
3204 | * as some pre-programmed values are broken, | |
3205 | * e.g. x201. | |
3206 | */ | |
9db4a9c7 JB |
3207 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3); |
3208 | I915_WRITE(PF_WIN_POS(pipe), dev_priv->pch_pf_pos); | |
3209 | I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size); | |
f67a559d JB |
3210 | } |
3211 | ||
9c54c0dd JB |
3212 | /* |
3213 | * On ILK+ LUT must be loaded before the pipe is running but with | |
3214 | * clocks enabled | |
3215 | */ | |
3216 | intel_crtc_load_lut(crtc); | |
3217 | ||
f67a559d JB |
3218 | intel_enable_pipe(dev_priv, pipe, is_pch_port); |
3219 | intel_enable_plane(dev_priv, plane, pipe); | |
3220 | ||
3221 | if (is_pch_port) | |
3222 | ironlake_pch_enable(crtc); | |
c98e9dcf | 3223 | |
d1ebd816 | 3224 | mutex_lock(&dev->struct_mutex); |
bed4a673 | 3225 | intel_update_fbc(dev); |
d1ebd816 BW |
3226 | mutex_unlock(&dev->struct_mutex); |
3227 | ||
6b383a7f | 3228 | intel_crtc_update_cursor(crtc, true); |
ef9c3aee | 3229 | |
fa5c73b1 DV |
3230 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3231 | encoder->enable(encoder); | |
61b77ddd DV |
3232 | |
3233 | if (HAS_PCH_CPT(dev)) | |
3234 | intel_cpt_verify_modeset(dev, intel_crtc->pipe); | |
6be4a607 JB |
3235 | } |
3236 | ||
3237 | static void ironlake_crtc_disable(struct drm_crtc *crtc) | |
3238 | { | |
3239 | struct drm_device *dev = crtc->dev; | |
3240 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3241 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3242 | struct intel_encoder *encoder; |
6be4a607 JB |
3243 | int pipe = intel_crtc->pipe; |
3244 | int plane = intel_crtc->plane; | |
5eddb70b | 3245 | u32 reg, temp; |
b52eb4dc | 3246 | |
ef9c3aee | 3247 | |
f7abfe8b CW |
3248 | if (!intel_crtc->active) |
3249 | return; | |
3250 | ||
ea9d758d DV |
3251 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3252 | encoder->disable(encoder); | |
3253 | ||
e6c3a2a6 | 3254 | intel_crtc_wait_for_pending_flips(crtc); |
6be4a607 | 3255 | drm_vblank_off(dev, pipe); |
6b383a7f | 3256 | intel_crtc_update_cursor(crtc, false); |
5eddb70b | 3257 | |
b24e7179 | 3258 | intel_disable_plane(dev_priv, plane, pipe); |
913d8d11 | 3259 | |
973d04f9 CW |
3260 | if (dev_priv->cfb_plane == plane) |
3261 | intel_disable_fbc(dev); | |
2c07245f | 3262 | |
b24e7179 | 3263 | intel_disable_pipe(dev_priv, pipe); |
32f9d658 | 3264 | |
6be4a607 | 3265 | /* Disable PF */ |
9db4a9c7 JB |
3266 | I915_WRITE(PF_CTL(pipe), 0); |
3267 | I915_WRITE(PF_WIN_SZ(pipe), 0); | |
2c07245f | 3268 | |
bf49ec8c DV |
3269 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3270 | if (encoder->post_disable) | |
3271 | encoder->post_disable(encoder); | |
3272 | ||
0fc932b8 | 3273 | ironlake_fdi_disable(crtc); |
2c07245f | 3274 | |
040484af | 3275 | intel_disable_transcoder(dev_priv, pipe); |
913d8d11 | 3276 | |
6be4a607 JB |
3277 | if (HAS_PCH_CPT(dev)) { |
3278 | /* disable TRANS_DP_CTL */ | |
5eddb70b CW |
3279 | reg = TRANS_DP_CTL(pipe); |
3280 | temp = I915_READ(reg); | |
3281 | temp &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK); | |
cb3543c6 | 3282 | temp |= TRANS_DP_PORT_SEL_NONE; |
5eddb70b | 3283 | I915_WRITE(reg, temp); |
6be4a607 JB |
3284 | |
3285 | /* disable DPLL_SEL */ | |
3286 | temp = I915_READ(PCH_DPLL_SEL); | |
9db4a9c7 JB |
3287 | switch (pipe) { |
3288 | case 0: | |
d64311ab | 3289 | temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL); |
9db4a9c7 JB |
3290 | break; |
3291 | case 1: | |
6be4a607 | 3292 | temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); |
9db4a9c7 JB |
3293 | break; |
3294 | case 2: | |
4b645f14 | 3295 | /* C shares PLL A or B */ |
d64311ab | 3296 | temp &= ~(TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL); |
9db4a9c7 JB |
3297 | break; |
3298 | default: | |
3299 | BUG(); /* wtf */ | |
3300 | } | |
6be4a607 | 3301 | I915_WRITE(PCH_DPLL_SEL, temp); |
6be4a607 | 3302 | } |
e3421a18 | 3303 | |
6be4a607 | 3304 | /* disable PCH DPLL */ |
ee7b9f93 | 3305 | intel_disable_pch_pll(intel_crtc); |
8db9d77b | 3306 | |
88cefb6c | 3307 | ironlake_fdi_pll_disable(intel_crtc); |
6b383a7f | 3308 | |
f7abfe8b | 3309 | intel_crtc->active = false; |
6b383a7f | 3310 | intel_update_watermarks(dev); |
d1ebd816 BW |
3311 | |
3312 | mutex_lock(&dev->struct_mutex); | |
6b383a7f | 3313 | intel_update_fbc(dev); |
d1ebd816 | 3314 | mutex_unlock(&dev->struct_mutex); |
6be4a607 | 3315 | } |
1b3c7a47 | 3316 | |
ee7b9f93 JB |
3317 | static void ironlake_crtc_off(struct drm_crtc *crtc) |
3318 | { | |
3319 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3320 | intel_put_pch_pll(intel_crtc); | |
3321 | } | |
3322 | ||
02e792fb DV |
3323 | static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable) |
3324 | { | |
02e792fb | 3325 | if (!enable && intel_crtc->overlay) { |
23f09ce3 | 3326 | struct drm_device *dev = intel_crtc->base.dev; |
ce453d81 | 3327 | struct drm_i915_private *dev_priv = dev->dev_private; |
03f77ea5 | 3328 | |
23f09ce3 | 3329 | mutex_lock(&dev->struct_mutex); |
ce453d81 CW |
3330 | dev_priv->mm.interruptible = false; |
3331 | (void) intel_overlay_switch_off(intel_crtc->overlay); | |
3332 | dev_priv->mm.interruptible = true; | |
23f09ce3 | 3333 | mutex_unlock(&dev->struct_mutex); |
02e792fb | 3334 | } |
02e792fb | 3335 | |
5dcdbcb0 CW |
3336 | /* Let userspace switch the overlay on again. In most cases userspace |
3337 | * has to recompute where to put it anyway. | |
3338 | */ | |
02e792fb DV |
3339 | } |
3340 | ||
0b8765c6 | 3341 | static void i9xx_crtc_enable(struct drm_crtc *crtc) |
79e53945 JB |
3342 | { |
3343 | struct drm_device *dev = crtc->dev; | |
79e53945 JB |
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; |
79e53945 | 3347 | int pipe = intel_crtc->pipe; |
80824003 | 3348 | int plane = intel_crtc->plane; |
79e53945 | 3349 | |
08a48469 DV |
3350 | WARN_ON(!crtc->enabled); |
3351 | ||
f7abfe8b CW |
3352 | if (intel_crtc->active) |
3353 | return; | |
3354 | ||
3355 | intel_crtc->active = true; | |
6b383a7f CW |
3356 | intel_update_watermarks(dev); |
3357 | ||
63d7bbe9 | 3358 | intel_enable_pll(dev_priv, pipe); |
040484af | 3359 | intel_enable_pipe(dev_priv, pipe, false); |
b24e7179 | 3360 | intel_enable_plane(dev_priv, plane, pipe); |
79e53945 | 3361 | |
0b8765c6 | 3362 | intel_crtc_load_lut(crtc); |
bed4a673 | 3363 | intel_update_fbc(dev); |
79e53945 | 3364 | |
0b8765c6 JB |
3365 | /* Give the overlay scaler a chance to enable if it's on this pipe */ |
3366 | intel_crtc_dpms_overlay(intel_crtc, true); | |
6b383a7f | 3367 | intel_crtc_update_cursor(crtc, true); |
ef9c3aee | 3368 | |
fa5c73b1 DV |
3369 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3370 | encoder->enable(encoder); | |
0b8765c6 | 3371 | } |
79e53945 | 3372 | |
0b8765c6 JB |
3373 | static void i9xx_crtc_disable(struct drm_crtc *crtc) |
3374 | { | |
3375 | struct drm_device *dev = crtc->dev; | |
3376 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3377 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
ef9c3aee | 3378 | struct intel_encoder *encoder; |
0b8765c6 JB |
3379 | int pipe = intel_crtc->pipe; |
3380 | int plane = intel_crtc->plane; | |
b690e96c | 3381 | |
ef9c3aee | 3382 | |
f7abfe8b CW |
3383 | if (!intel_crtc->active) |
3384 | return; | |
3385 | ||
ea9d758d DV |
3386 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3387 | encoder->disable(encoder); | |
3388 | ||
0b8765c6 | 3389 | /* Give the overlay scaler a chance to disable if it's on this pipe */ |
e6c3a2a6 CW |
3390 | intel_crtc_wait_for_pending_flips(crtc); |
3391 | drm_vblank_off(dev, pipe); | |
0b8765c6 | 3392 | intel_crtc_dpms_overlay(intel_crtc, false); |
6b383a7f | 3393 | intel_crtc_update_cursor(crtc, false); |
0b8765c6 | 3394 | |
973d04f9 CW |
3395 | if (dev_priv->cfb_plane == plane) |
3396 | intel_disable_fbc(dev); | |
79e53945 | 3397 | |
b24e7179 | 3398 | intel_disable_plane(dev_priv, plane, pipe); |
b24e7179 | 3399 | intel_disable_pipe(dev_priv, pipe); |
63d7bbe9 | 3400 | intel_disable_pll(dev_priv, pipe); |
0b8765c6 | 3401 | |
f7abfe8b | 3402 | intel_crtc->active = false; |
6b383a7f CW |
3403 | intel_update_fbc(dev); |
3404 | intel_update_watermarks(dev); | |
0b8765c6 JB |
3405 | } |
3406 | ||
ee7b9f93 JB |
3407 | static void i9xx_crtc_off(struct drm_crtc *crtc) |
3408 | { | |
3409 | } | |
3410 | ||
976f8a20 DV |
3411 | static void intel_crtc_update_sarea(struct drm_crtc *crtc, |
3412 | bool enabled) | |
2c07245f ZW |
3413 | { |
3414 | struct drm_device *dev = crtc->dev; | |
3415 | struct drm_i915_master_private *master_priv; | |
3416 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3417 | int pipe = intel_crtc->pipe; | |
79e53945 JB |
3418 | |
3419 | if (!dev->primary->master) | |
3420 | return; | |
3421 | ||
3422 | master_priv = dev->primary->master->driver_priv; | |
3423 | if (!master_priv->sarea_priv) | |
3424 | return; | |
3425 | ||
79e53945 JB |
3426 | switch (pipe) { |
3427 | case 0: | |
3428 | master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0; | |
3429 | master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0; | |
3430 | break; | |
3431 | case 1: | |
3432 | master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0; | |
3433 | master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0; | |
3434 | break; | |
3435 | default: | |
9db4a9c7 | 3436 | DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe)); |
79e53945 JB |
3437 | break; |
3438 | } | |
79e53945 JB |
3439 | } |
3440 | ||
976f8a20 DV |
3441 | /** |
3442 | * Sets the power management mode of the pipe and plane. | |
3443 | */ | |
3444 | void intel_crtc_update_dpms(struct drm_crtc *crtc) | |
3445 | { | |
3446 | struct drm_device *dev = crtc->dev; | |
3447 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3448 | struct intel_encoder *intel_encoder; | |
3449 | bool enable = false; | |
3450 | ||
3451 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) | |
3452 | enable |= intel_encoder->connectors_active; | |
3453 | ||
3454 | if (enable) | |
3455 | dev_priv->display.crtc_enable(crtc); | |
3456 | else | |
3457 | dev_priv->display.crtc_disable(crtc); | |
3458 | ||
3459 | intel_crtc_update_sarea(crtc, enable); | |
3460 | } | |
3461 | ||
3462 | static void intel_crtc_noop(struct drm_crtc *crtc) | |
3463 | { | |
3464 | } | |
3465 | ||
cdd59983 CW |
3466 | static void intel_crtc_disable(struct drm_crtc *crtc) |
3467 | { | |
cdd59983 | 3468 | struct drm_device *dev = crtc->dev; |
976f8a20 | 3469 | struct drm_connector *connector; |
ee7b9f93 | 3470 | struct drm_i915_private *dev_priv = dev->dev_private; |
cdd59983 | 3471 | |
976f8a20 DV |
3472 | /* crtc should still be enabled when we disable it. */ |
3473 | WARN_ON(!crtc->enabled); | |
3474 | ||
3475 | dev_priv->display.crtc_disable(crtc); | |
3476 | intel_crtc_update_sarea(crtc, false); | |
ee7b9f93 JB |
3477 | dev_priv->display.off(crtc); |
3478 | ||
931872fc CW |
3479 | assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane); |
3480 | assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe); | |
cdd59983 CW |
3481 | |
3482 | if (crtc->fb) { | |
3483 | mutex_lock(&dev->struct_mutex); | |
1690e1eb | 3484 | intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj); |
cdd59983 | 3485 | mutex_unlock(&dev->struct_mutex); |
976f8a20 DV |
3486 | crtc->fb = NULL; |
3487 | } | |
3488 | ||
3489 | /* Update computed state. */ | |
3490 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
3491 | if (!connector->encoder || !connector->encoder->crtc) | |
3492 | continue; | |
3493 | ||
3494 | if (connector->encoder->crtc != crtc) | |
3495 | continue; | |
3496 | ||
3497 | connector->dpms = DRM_MODE_DPMS_OFF; | |
3498 | to_intel_encoder(connector->encoder)->connectors_active = false; | |
cdd59983 CW |
3499 | } |
3500 | } | |
3501 | ||
a261b246 | 3502 | void intel_modeset_disable(struct drm_device *dev) |
79e53945 | 3503 | { |
a261b246 DV |
3504 | struct drm_crtc *crtc; |
3505 | ||
3506 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
3507 | if (crtc->enabled) | |
3508 | intel_crtc_disable(crtc); | |
3509 | } | |
79e53945 JB |
3510 | } |
3511 | ||
1f703855 | 3512 | void intel_encoder_noop(struct drm_encoder *encoder) |
79e53945 | 3513 | { |
7e7d76c3 JB |
3514 | } |
3515 | ||
ea5b213a | 3516 | void intel_encoder_destroy(struct drm_encoder *encoder) |
7e7d76c3 | 3517 | { |
4ef69c7a | 3518 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); |
ea5b213a | 3519 | |
ea5b213a CW |
3520 | drm_encoder_cleanup(encoder); |
3521 | kfree(intel_encoder); | |
7e7d76c3 JB |
3522 | } |
3523 | ||
5ab432ef DV |
3524 | /* Simple dpms helper for encodres with just one connector, no cloning and only |
3525 | * one kind of off state. It clamps all !ON modes to fully OFF and changes the | |
3526 | * state of the entire output pipe. */ | |
3527 | void intel_encoder_dpms(struct intel_encoder *encoder, int mode) | |
7e7d76c3 | 3528 | { |
5ab432ef DV |
3529 | if (mode == DRM_MODE_DPMS_ON) { |
3530 | encoder->connectors_active = true; | |
3531 | ||
b2cabb0e | 3532 | intel_crtc_update_dpms(encoder->base.crtc); |
5ab432ef DV |
3533 | } else { |
3534 | encoder->connectors_active = false; | |
3535 | ||
b2cabb0e | 3536 | intel_crtc_update_dpms(encoder->base.crtc); |
5ab432ef | 3537 | } |
79e53945 JB |
3538 | } |
3539 | ||
0a91ca29 DV |
3540 | /* Cross check the actual hw state with our own modeset state tracking (and it's |
3541 | * internal consistency). */ | |
b980514c | 3542 | static void intel_connector_check_state(struct intel_connector *connector) |
79e53945 | 3543 | { |
0a91ca29 DV |
3544 | if (connector->get_hw_state(connector)) { |
3545 | struct intel_encoder *encoder = connector->encoder; | |
3546 | struct drm_crtc *crtc; | |
3547 | bool encoder_enabled; | |
3548 | enum pipe pipe; | |
3549 | ||
3550 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", | |
3551 | connector->base.base.id, | |
3552 | drm_get_connector_name(&connector->base)); | |
3553 | ||
3554 | WARN(connector->base.dpms == DRM_MODE_DPMS_OFF, | |
3555 | "wrong connector dpms state\n"); | |
3556 | WARN(connector->base.encoder != &encoder->base, | |
3557 | "active connector not linked to encoder\n"); | |
3558 | WARN(!encoder->connectors_active, | |
3559 | "encoder->connectors_active not set\n"); | |
3560 | ||
3561 | encoder_enabled = encoder->get_hw_state(encoder, &pipe); | |
3562 | WARN(!encoder_enabled, "encoder not enabled\n"); | |
3563 | if (WARN_ON(!encoder->base.crtc)) | |
3564 | return; | |
3565 | ||
3566 | crtc = encoder->base.crtc; | |
3567 | ||
3568 | WARN(!crtc->enabled, "crtc not enabled\n"); | |
3569 | WARN(!to_intel_crtc(crtc)->active, "crtc not active\n"); | |
3570 | WARN(pipe != to_intel_crtc(crtc)->pipe, | |
3571 | "encoder active on the wrong pipe\n"); | |
3572 | } | |
79e53945 JB |
3573 | } |
3574 | ||
5ab432ef DV |
3575 | /* Even simpler default implementation, if there's really no special case to |
3576 | * consider. */ | |
3577 | void intel_connector_dpms(struct drm_connector *connector, int mode) | |
79e53945 | 3578 | { |
5ab432ef | 3579 | struct intel_encoder *encoder = intel_attached_encoder(connector); |
d4270e57 | 3580 | |
5ab432ef DV |
3581 | /* All the simple cases only support two dpms states. */ |
3582 | if (mode != DRM_MODE_DPMS_ON) | |
3583 | mode = DRM_MODE_DPMS_OFF; | |
d4270e57 | 3584 | |
5ab432ef DV |
3585 | if (mode == connector->dpms) |
3586 | return; | |
3587 | ||
3588 | connector->dpms = mode; | |
3589 | ||
3590 | /* Only need to change hw state when actually enabled */ | |
3591 | if (encoder->base.crtc) | |
3592 | intel_encoder_dpms(encoder, mode); | |
3593 | else | |
8af6cf88 | 3594 | WARN_ON(encoder->connectors_active != false); |
0a91ca29 | 3595 | |
b980514c | 3596 | intel_modeset_check_state(connector->dev); |
79e53945 JB |
3597 | } |
3598 | ||
f0947c37 DV |
3599 | /* Simple connector->get_hw_state implementation for encoders that support only |
3600 | * one connector and no cloning and hence the encoder state determines the state | |
3601 | * of the connector. */ | |
3602 | bool intel_connector_get_hw_state(struct intel_connector *connector) | |
ea5b213a | 3603 | { |
24929352 | 3604 | enum pipe pipe = 0; |
f0947c37 | 3605 | struct intel_encoder *encoder = connector->encoder; |
ea5b213a | 3606 | |
f0947c37 | 3607 | return encoder->get_hw_state(encoder, &pipe); |
ea5b213a CW |
3608 | } |
3609 | ||
79e53945 | 3610 | static bool intel_crtc_mode_fixup(struct drm_crtc *crtc, |
35313cde | 3611 | const struct drm_display_mode *mode, |
79e53945 JB |
3612 | struct drm_display_mode *adjusted_mode) |
3613 | { | |
2c07245f | 3614 | struct drm_device *dev = crtc->dev; |
89749350 | 3615 | |
bad720ff | 3616 | if (HAS_PCH_SPLIT(dev)) { |
2c07245f | 3617 | /* FDI link clock is fixed at 2.7G */ |
2377b741 JB |
3618 | if (mode->clock * 3 > IRONLAKE_FDI_FREQ * 4) |
3619 | return false; | |
2c07245f | 3620 | } |
89749350 | 3621 | |
f9bef081 DV |
3622 | /* All interlaced capable intel hw wants timings in frames. Note though |
3623 | * that intel_lvds_mode_fixup does some funny tricks with the crtc | |
3624 | * timings, so we need to be careful not to clobber these.*/ | |
3625 | if (!(adjusted_mode->private_flags & INTEL_MODE_CRTC_TIMINGS_SET)) | |
3626 | drm_mode_set_crtcinfo(adjusted_mode, 0); | |
89749350 | 3627 | |
44f46b42 CW |
3628 | /* WaPruneModeWithIncorrectHsyncOffset: Cantiga+ cannot handle modes |
3629 | * with a hsync front porch of 0. | |
3630 | */ | |
3631 | if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) && | |
3632 | adjusted_mode->hsync_start == adjusted_mode->hdisplay) | |
3633 | return false; | |
3634 | ||
79e53945 JB |
3635 | return true; |
3636 | } | |
3637 | ||
25eb05fc JB |
3638 | static int valleyview_get_display_clock_speed(struct drm_device *dev) |
3639 | { | |
3640 | return 400000; /* FIXME */ | |
3641 | } | |
3642 | ||
e70236a8 JB |
3643 | static int i945_get_display_clock_speed(struct drm_device *dev) |
3644 | { | |
3645 | return 400000; | |
3646 | } | |
79e53945 | 3647 | |
e70236a8 | 3648 | static int i915_get_display_clock_speed(struct drm_device *dev) |
79e53945 | 3649 | { |
e70236a8 JB |
3650 | return 333000; |
3651 | } | |
79e53945 | 3652 | |
e70236a8 JB |
3653 | static int i9xx_misc_get_display_clock_speed(struct drm_device *dev) |
3654 | { | |
3655 | return 200000; | |
3656 | } | |
79e53945 | 3657 | |
e70236a8 JB |
3658 | static int i915gm_get_display_clock_speed(struct drm_device *dev) |
3659 | { | |
3660 | u16 gcfgc = 0; | |
79e53945 | 3661 | |
e70236a8 JB |
3662 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); |
3663 | ||
3664 | if (gcfgc & GC_LOW_FREQUENCY_ENABLE) | |
3665 | return 133000; | |
3666 | else { | |
3667 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
3668 | case GC_DISPLAY_CLOCK_333_MHZ: | |
3669 | return 333000; | |
3670 | default: | |
3671 | case GC_DISPLAY_CLOCK_190_200_MHZ: | |
3672 | return 190000; | |
79e53945 | 3673 | } |
e70236a8 JB |
3674 | } |
3675 | } | |
3676 | ||
3677 | static int i865_get_display_clock_speed(struct drm_device *dev) | |
3678 | { | |
3679 | return 266000; | |
3680 | } | |
3681 | ||
3682 | static int i855_get_display_clock_speed(struct drm_device *dev) | |
3683 | { | |
3684 | u16 hpllcc = 0; | |
3685 | /* Assume that the hardware is in the high speed state. This | |
3686 | * should be the default. | |
3687 | */ | |
3688 | switch (hpllcc & GC_CLOCK_CONTROL_MASK) { | |
3689 | case GC_CLOCK_133_200: | |
3690 | case GC_CLOCK_100_200: | |
3691 | return 200000; | |
3692 | case GC_CLOCK_166_250: | |
3693 | return 250000; | |
3694 | case GC_CLOCK_100_133: | |
79e53945 | 3695 | return 133000; |
e70236a8 | 3696 | } |
79e53945 | 3697 | |
e70236a8 JB |
3698 | /* Shouldn't happen */ |
3699 | return 0; | |
3700 | } | |
79e53945 | 3701 | |
e70236a8 JB |
3702 | static int i830_get_display_clock_speed(struct drm_device *dev) |
3703 | { | |
3704 | return 133000; | |
79e53945 JB |
3705 | } |
3706 | ||
2c07245f ZW |
3707 | struct fdi_m_n { |
3708 | u32 tu; | |
3709 | u32 gmch_m; | |
3710 | u32 gmch_n; | |
3711 | u32 link_m; | |
3712 | u32 link_n; | |
3713 | }; | |
3714 | ||
3715 | static void | |
3716 | fdi_reduce_ratio(u32 *num, u32 *den) | |
3717 | { | |
3718 | while (*num > 0xffffff || *den > 0xffffff) { | |
3719 | *num >>= 1; | |
3720 | *den >>= 1; | |
3721 | } | |
3722 | } | |
3723 | ||
2c07245f | 3724 | static void |
f2b115e6 AJ |
3725 | ironlake_compute_m_n(int bits_per_pixel, int nlanes, int pixel_clock, |
3726 | int link_clock, struct fdi_m_n *m_n) | |
2c07245f | 3727 | { |
2c07245f ZW |
3728 | m_n->tu = 64; /* default size */ |
3729 | ||
22ed1113 CW |
3730 | /* BUG_ON(pixel_clock > INT_MAX / 36); */ |
3731 | m_n->gmch_m = bits_per_pixel * pixel_clock; | |
3732 | m_n->gmch_n = link_clock * nlanes * 8; | |
2c07245f ZW |
3733 | fdi_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n); |
3734 | ||
22ed1113 CW |
3735 | m_n->link_m = pixel_clock; |
3736 | m_n->link_n = link_clock; | |
2c07245f ZW |
3737 | fdi_reduce_ratio(&m_n->link_m, &m_n->link_n); |
3738 | } | |
3739 | ||
a7615030 CW |
3740 | static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) |
3741 | { | |
72bbe58c KP |
3742 | if (i915_panel_use_ssc >= 0) |
3743 | return i915_panel_use_ssc != 0; | |
3744 | return dev_priv->lvds_use_ssc | |
435793df | 3745 | && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE); |
a7615030 CW |
3746 | } |
3747 | ||
5a354204 JB |
3748 | /** |
3749 | * intel_choose_pipe_bpp_dither - figure out what color depth the pipe should send | |
3750 | * @crtc: CRTC structure | |
3b5c78a3 | 3751 | * @mode: requested mode |
5a354204 JB |
3752 | * |
3753 | * A pipe may be connected to one or more outputs. Based on the depth of the | |
3754 | * attached framebuffer, choose a good color depth to use on the pipe. | |
3755 | * | |
3756 | * If possible, match the pipe depth to the fb depth. In some cases, this | |
3757 | * isn't ideal, because the connected output supports a lesser or restricted | |
3758 | * set of depths. Resolve that here: | |
3759 | * LVDS typically supports only 6bpc, so clamp down in that case | |
3760 | * HDMI supports only 8bpc or 12bpc, so clamp to 8bpc with dither for 10bpc | |
3761 | * Displays may support a restricted set as well, check EDID and clamp as | |
3762 | * appropriate. | |
3b5c78a3 | 3763 | * DP may want to dither down to 6bpc to fit larger modes |
5a354204 JB |
3764 | * |
3765 | * RETURNS: | |
3766 | * Dithering requirement (i.e. false if display bpc and pipe bpc match, | |
3767 | * true if they don't match). | |
3768 | */ | |
3769 | static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc, | |
94352cf9 | 3770 | struct drm_framebuffer *fb, |
3b5c78a3 AJ |
3771 | unsigned int *pipe_bpp, |
3772 | struct drm_display_mode *mode) | |
5a354204 JB |
3773 | { |
3774 | struct drm_device *dev = crtc->dev; | |
3775 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5a354204 | 3776 | struct drm_connector *connector; |
6c2b7c12 | 3777 | struct intel_encoder *intel_encoder; |
5a354204 JB |
3778 | unsigned int display_bpc = UINT_MAX, bpc; |
3779 | ||
3780 | /* Walk the encoders & connectors on this crtc, get min bpc */ | |
6c2b7c12 | 3781 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
5a354204 JB |
3782 | |
3783 | if (intel_encoder->type == INTEL_OUTPUT_LVDS) { | |
3784 | unsigned int lvds_bpc; | |
3785 | ||
3786 | if ((I915_READ(PCH_LVDS) & LVDS_A3_POWER_MASK) == | |
3787 | LVDS_A3_POWER_UP) | |
3788 | lvds_bpc = 8; | |
3789 | else | |
3790 | lvds_bpc = 6; | |
3791 | ||
3792 | if (lvds_bpc < display_bpc) { | |
82820490 | 3793 | DRM_DEBUG_KMS("clamping display bpc (was %d) to LVDS (%d)\n", display_bpc, lvds_bpc); |
5a354204 JB |
3794 | display_bpc = lvds_bpc; |
3795 | } | |
3796 | continue; | |
3797 | } | |
3798 | ||
5a354204 JB |
3799 | /* Not one of the known troublemakers, check the EDID */ |
3800 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
3801 | head) { | |
6c2b7c12 | 3802 | if (connector->encoder != &intel_encoder->base) |
5a354204 JB |
3803 | continue; |
3804 | ||
62ac41a6 JB |
3805 | /* Don't use an invalid EDID bpc value */ |
3806 | if (connector->display_info.bpc && | |
3807 | connector->display_info.bpc < display_bpc) { | |
82820490 | 3808 | DRM_DEBUG_KMS("clamping display bpc (was %d) to EDID reported max of %d\n", display_bpc, connector->display_info.bpc); |
5a354204 JB |
3809 | display_bpc = connector->display_info.bpc; |
3810 | } | |
3811 | } | |
3812 | ||
3813 | /* | |
3814 | * HDMI is either 12 or 8, so if the display lets 10bpc sneak | |
3815 | * through, clamp it down. (Note: >12bpc will be caught below.) | |
3816 | */ | |
3817 | if (intel_encoder->type == INTEL_OUTPUT_HDMI) { | |
3818 | if (display_bpc > 8 && display_bpc < 12) { | |
82820490 | 3819 | DRM_DEBUG_KMS("forcing bpc to 12 for HDMI\n"); |
5a354204 JB |
3820 | display_bpc = 12; |
3821 | } else { | |
82820490 | 3822 | DRM_DEBUG_KMS("forcing bpc to 8 for HDMI\n"); |
5a354204 JB |
3823 | display_bpc = 8; |
3824 | } | |
3825 | } | |
3826 | } | |
3827 | ||
3b5c78a3 AJ |
3828 | if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) { |
3829 | DRM_DEBUG_KMS("Dithering DP to 6bpc\n"); | |
3830 | display_bpc = 6; | |
3831 | } | |
3832 | ||
5a354204 JB |
3833 | /* |
3834 | * We could just drive the pipe at the highest bpc all the time and | |
3835 | * enable dithering as needed, but that costs bandwidth. So choose | |
3836 | * the minimum value that expresses the full color range of the fb but | |
3837 | * also stays within the max display bpc discovered above. | |
3838 | */ | |
3839 | ||
94352cf9 | 3840 | switch (fb->depth) { |
5a354204 JB |
3841 | case 8: |
3842 | bpc = 8; /* since we go through a colormap */ | |
3843 | break; | |
3844 | case 15: | |
3845 | case 16: | |
3846 | bpc = 6; /* min is 18bpp */ | |
3847 | break; | |
3848 | case 24: | |
578393cd | 3849 | bpc = 8; |
5a354204 JB |
3850 | break; |
3851 | case 30: | |
578393cd | 3852 | bpc = 10; |
5a354204 JB |
3853 | break; |
3854 | case 48: | |
578393cd | 3855 | bpc = 12; |
5a354204 JB |
3856 | break; |
3857 | default: | |
3858 | DRM_DEBUG("unsupported depth, assuming 24 bits\n"); | |
3859 | bpc = min((unsigned int)8, display_bpc); | |
3860 | break; | |
3861 | } | |
3862 | ||
578393cd KP |
3863 | display_bpc = min(display_bpc, bpc); |
3864 | ||
82820490 AJ |
3865 | DRM_DEBUG_KMS("setting pipe bpc to %d (max display bpc %d)\n", |
3866 | bpc, display_bpc); | |
5a354204 | 3867 | |
578393cd | 3868 | *pipe_bpp = display_bpc * 3; |
5a354204 JB |
3869 | |
3870 | return display_bpc != bpc; | |
3871 | } | |
3872 | ||
a0c4da24 JB |
3873 | static int vlv_get_refclk(struct drm_crtc *crtc) |
3874 | { | |
3875 | struct drm_device *dev = crtc->dev; | |
3876 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3877 | int refclk = 27000; /* for DP & HDMI */ | |
3878 | ||
3879 | return 100000; /* only one validated so far */ | |
3880 | ||
3881 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { | |
3882 | refclk = 96000; | |
3883 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
3884 | if (intel_panel_use_ssc(dev_priv)) | |
3885 | refclk = 100000; | |
3886 | else | |
3887 | refclk = 96000; | |
3888 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) { | |
3889 | refclk = 100000; | |
3890 | } | |
3891 | ||
3892 | return refclk; | |
3893 | } | |
3894 | ||
c65d77d8 JB |
3895 | static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors) |
3896 | { | |
3897 | struct drm_device *dev = crtc->dev; | |
3898 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3899 | int refclk; | |
3900 | ||
a0c4da24 JB |
3901 | if (IS_VALLEYVIEW(dev)) { |
3902 | refclk = vlv_get_refclk(crtc); | |
3903 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
c65d77d8 JB |
3904 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) { |
3905 | refclk = dev_priv->lvds_ssc_freq * 1000; | |
3906 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", | |
3907 | refclk / 1000); | |
3908 | } else if (!IS_GEN2(dev)) { | |
3909 | refclk = 96000; | |
3910 | } else { | |
3911 | refclk = 48000; | |
3912 | } | |
3913 | ||
3914 | return refclk; | |
3915 | } | |
3916 | ||
3917 | static void i9xx_adjust_sdvo_tv_clock(struct drm_display_mode *adjusted_mode, | |
3918 | intel_clock_t *clock) | |
3919 | { | |
3920 | /* SDVO TV has fixed PLL values depend on its clock range, | |
3921 | this mirrors vbios setting. */ | |
3922 | if (adjusted_mode->clock >= 100000 | |
3923 | && adjusted_mode->clock < 140500) { | |
3924 | clock->p1 = 2; | |
3925 | clock->p2 = 10; | |
3926 | clock->n = 3; | |
3927 | clock->m1 = 16; | |
3928 | clock->m2 = 8; | |
3929 | } else if (adjusted_mode->clock >= 140500 | |
3930 | && adjusted_mode->clock <= 200000) { | |
3931 | clock->p1 = 1; | |
3932 | clock->p2 = 10; | |
3933 | clock->n = 6; | |
3934 | clock->m1 = 12; | |
3935 | clock->m2 = 8; | |
3936 | } | |
3937 | } | |
3938 | ||
a7516a05 JB |
3939 | static void i9xx_update_pll_dividers(struct drm_crtc *crtc, |
3940 | intel_clock_t *clock, | |
3941 | intel_clock_t *reduced_clock) | |
3942 | { | |
3943 | struct drm_device *dev = crtc->dev; | |
3944 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3945 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3946 | int pipe = intel_crtc->pipe; | |
3947 | u32 fp, fp2 = 0; | |
3948 | ||
3949 | if (IS_PINEVIEW(dev)) { | |
3950 | fp = (1 << clock->n) << 16 | clock->m1 << 8 | clock->m2; | |
3951 | if (reduced_clock) | |
3952 | fp2 = (1 << reduced_clock->n) << 16 | | |
3953 | reduced_clock->m1 << 8 | reduced_clock->m2; | |
3954 | } else { | |
3955 | fp = clock->n << 16 | clock->m1 << 8 | clock->m2; | |
3956 | if (reduced_clock) | |
3957 | fp2 = reduced_clock->n << 16 | reduced_clock->m1 << 8 | | |
3958 | reduced_clock->m2; | |
3959 | } | |
3960 | ||
3961 | I915_WRITE(FP0(pipe), fp); | |
3962 | ||
3963 | intel_crtc->lowfreq_avail = false; | |
3964 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
3965 | reduced_clock && i915_powersave) { | |
3966 | I915_WRITE(FP1(pipe), fp2); | |
3967 | intel_crtc->lowfreq_avail = true; | |
3968 | } else { | |
3969 | I915_WRITE(FP1(pipe), fp); | |
3970 | } | |
3971 | } | |
3972 | ||
93e537a1 DV |
3973 | static void intel_update_lvds(struct drm_crtc *crtc, intel_clock_t *clock, |
3974 | struct drm_display_mode *adjusted_mode) | |
3975 | { | |
3976 | struct drm_device *dev = crtc->dev; | |
3977 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3978 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3979 | int pipe = intel_crtc->pipe; | |
284d5df5 | 3980 | u32 temp; |
93e537a1 DV |
3981 | |
3982 | temp = I915_READ(LVDS); | |
3983 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; | |
3984 | if (pipe == 1) { | |
3985 | temp |= LVDS_PIPEB_SELECT; | |
3986 | } else { | |
3987 | temp &= ~LVDS_PIPEB_SELECT; | |
3988 | } | |
3989 | /* set the corresponsding LVDS_BORDER bit */ | |
3990 | temp |= dev_priv->lvds_border_bits; | |
3991 | /* Set the B0-B3 data pairs corresponding to whether we're going to | |
3992 | * set the DPLLs for dual-channel mode or not. | |
3993 | */ | |
3994 | if (clock->p2 == 7) | |
3995 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; | |
3996 | else | |
3997 | temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); | |
3998 | ||
3999 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) | |
4000 | * appropriately here, but we need to look more thoroughly into how | |
4001 | * panels behave in the two modes. | |
4002 | */ | |
4003 | /* set the dithering flag on LVDS as needed */ | |
4004 | if (INTEL_INFO(dev)->gen >= 4) { | |
4005 | if (dev_priv->lvds_dither) | |
4006 | temp |= LVDS_ENABLE_DITHER; | |
4007 | else | |
4008 | temp &= ~LVDS_ENABLE_DITHER; | |
4009 | } | |
284d5df5 | 4010 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); |
93e537a1 | 4011 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) |
284d5df5 | 4012 | temp |= LVDS_HSYNC_POLARITY; |
93e537a1 | 4013 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) |
284d5df5 | 4014 | temp |= LVDS_VSYNC_POLARITY; |
93e537a1 DV |
4015 | I915_WRITE(LVDS, temp); |
4016 | } | |
4017 | ||
a0c4da24 JB |
4018 | static void vlv_update_pll(struct drm_crtc *crtc, |
4019 | struct drm_display_mode *mode, | |
4020 | struct drm_display_mode *adjusted_mode, | |
4021 | intel_clock_t *clock, intel_clock_t *reduced_clock, | |
4022 | int refclk, int num_connectors) | |
4023 | { | |
4024 | struct drm_device *dev = crtc->dev; | |
4025 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4026 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4027 | int pipe = intel_crtc->pipe; | |
4028 | u32 dpll, mdiv, pdiv; | |
4029 | u32 bestn, bestm1, bestm2, bestp1, bestp2; | |
4030 | bool is_hdmi; | |
4031 | ||
4032 | is_hdmi = intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI); | |
4033 | ||
4034 | bestn = clock->n; | |
4035 | bestm1 = clock->m1; | |
4036 | bestm2 = clock->m2; | |
4037 | bestp1 = clock->p1; | |
4038 | bestp2 = clock->p2; | |
4039 | ||
4040 | /* Enable DPIO clock input */ | |
4041 | dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REFA_CLK_ENABLE_VLV | | |
4042 | DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_CLOCK_VLV; | |
4043 | I915_WRITE(DPLL(pipe), dpll); | |
4044 | POSTING_READ(DPLL(pipe)); | |
4045 | ||
4046 | mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK)); | |
4047 | mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT)); | |
4048 | mdiv |= ((bestn << DPIO_N_SHIFT)); | |
4049 | mdiv |= (1 << DPIO_POST_DIV_SHIFT); | |
4050 | mdiv |= (1 << DPIO_K_SHIFT); | |
4051 | mdiv |= DPIO_ENABLE_CALIBRATION; | |
4052 | intel_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv); | |
4053 | ||
4054 | intel_dpio_write(dev_priv, DPIO_CORE_CLK(pipe), 0x01000000); | |
4055 | ||
4056 | pdiv = DPIO_REFSEL_OVERRIDE | (5 << DPIO_PLL_MODESEL_SHIFT) | | |
4057 | (3 << DPIO_BIAS_CURRENT_CTL_SHIFT) | (1<<20) | | |
4058 | (8 << DPIO_DRIVER_CTL_SHIFT) | (5 << DPIO_CLK_BIAS_CTL_SHIFT); | |
4059 | intel_dpio_write(dev_priv, DPIO_REFSFR(pipe), pdiv); | |
4060 | ||
4061 | intel_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe), 0x009f0051); | |
4062 | ||
4063 | dpll |= DPLL_VCO_ENABLE; | |
4064 | I915_WRITE(DPLL(pipe), dpll); | |
4065 | POSTING_READ(DPLL(pipe)); | |
4066 | if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1)) | |
4067 | DRM_ERROR("DPLL %d failed to lock\n", pipe); | |
4068 | ||
4069 | if (is_hdmi) { | |
4070 | u32 temp = intel_mode_get_pixel_multiplier(adjusted_mode); | |
4071 | ||
4072 | if (temp > 1) | |
4073 | temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
4074 | else | |
4075 | temp = 0; | |
4076 | ||
4077 | I915_WRITE(DPLL_MD(pipe), temp); | |
4078 | POSTING_READ(DPLL_MD(pipe)); | |
4079 | } | |
4080 | ||
4081 | intel_dpio_write(dev_priv, DPIO_FASTCLK_DISABLE, 0x641); /* ??? */ | |
4082 | } | |
4083 | ||
eb1cbe48 DV |
4084 | static void i9xx_update_pll(struct drm_crtc *crtc, |
4085 | struct drm_display_mode *mode, | |
4086 | struct drm_display_mode *adjusted_mode, | |
4087 | intel_clock_t *clock, intel_clock_t *reduced_clock, | |
4088 | int num_connectors) | |
4089 | { | |
4090 | struct drm_device *dev = crtc->dev; | |
4091 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4092 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4093 | int pipe = intel_crtc->pipe; | |
4094 | u32 dpll; | |
4095 | bool is_sdvo; | |
4096 | ||
4097 | is_sdvo = intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO) || | |
4098 | intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI); | |
4099 | ||
4100 | dpll = DPLL_VGA_MODE_DIS; | |
4101 | ||
4102 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
4103 | dpll |= DPLLB_MODE_LVDS; | |
4104 | else | |
4105 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
4106 | if (is_sdvo) { | |
4107 | int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); | |
4108 | if (pixel_multiplier > 1) { | |
4109 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) | |
4110 | dpll |= (pixel_multiplier - 1) << SDVO_MULTIPLIER_SHIFT_HIRES; | |
4111 | } | |
4112 | dpll |= DPLL_DVO_HIGH_SPEED; | |
4113 | } | |
4114 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) | |
4115 | dpll |= DPLL_DVO_HIGH_SPEED; | |
4116 | ||
4117 | /* compute bitmask from p1 value */ | |
4118 | if (IS_PINEVIEW(dev)) | |
4119 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW; | |
4120 | else { | |
4121 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4122 | if (IS_G4X(dev) && reduced_clock) | |
4123 | dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
4124 | } | |
4125 | switch (clock->p2) { | |
4126 | case 5: | |
4127 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
4128 | break; | |
4129 | case 7: | |
4130 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
4131 | break; | |
4132 | case 10: | |
4133 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
4134 | break; | |
4135 | case 14: | |
4136 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
4137 | break; | |
4138 | } | |
4139 | if (INTEL_INFO(dev)->gen >= 4) | |
4140 | dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT); | |
4141 | ||
4142 | if (is_sdvo && intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) | |
4143 | dpll |= PLL_REF_INPUT_TVCLKINBC; | |
4144 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) | |
4145 | /* XXX: just matching BIOS for now */ | |
4146 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ | |
4147 | dpll |= 3; | |
4148 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
4149 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) | |
4150 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
4151 | else | |
4152 | dpll |= PLL_REF_INPUT_DREFCLK; | |
4153 | ||
4154 | dpll |= DPLL_VCO_ENABLE; | |
4155 | I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); | |
4156 | POSTING_READ(DPLL(pipe)); | |
4157 | udelay(150); | |
4158 | ||
4159 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. | |
4160 | * This is an exception to the general rule that mode_set doesn't turn | |
4161 | * things on. | |
4162 | */ | |
4163 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
4164 | intel_update_lvds(crtc, clock, adjusted_mode); | |
4165 | ||
4166 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) | |
4167 | intel_dp_set_m_n(crtc, mode, adjusted_mode); | |
4168 | ||
4169 | I915_WRITE(DPLL(pipe), dpll); | |
4170 | ||
4171 | /* Wait for the clocks to stabilize. */ | |
4172 | POSTING_READ(DPLL(pipe)); | |
4173 | udelay(150); | |
4174 | ||
4175 | if (INTEL_INFO(dev)->gen >= 4) { | |
4176 | u32 temp = 0; | |
4177 | if (is_sdvo) { | |
4178 | temp = intel_mode_get_pixel_multiplier(adjusted_mode); | |
4179 | if (temp > 1) | |
4180 | temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
4181 | else | |
4182 | temp = 0; | |
4183 | } | |
4184 | I915_WRITE(DPLL_MD(pipe), temp); | |
4185 | } else { | |
4186 | /* The pixel multiplier can only be updated once the | |
4187 | * DPLL is enabled and the clocks are stable. | |
4188 | * | |
4189 | * So write it again. | |
4190 | */ | |
4191 | I915_WRITE(DPLL(pipe), dpll); | |
4192 | } | |
4193 | } | |
4194 | ||
4195 | static void i8xx_update_pll(struct drm_crtc *crtc, | |
4196 | struct drm_display_mode *adjusted_mode, | |
4197 | intel_clock_t *clock, | |
4198 | int num_connectors) | |
4199 | { | |
4200 | struct drm_device *dev = crtc->dev; | |
4201 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4202 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4203 | int pipe = intel_crtc->pipe; | |
4204 | u32 dpll; | |
4205 | ||
4206 | dpll = DPLL_VGA_MODE_DIS; | |
4207 | ||
4208 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
4209 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4210 | } else { | |
4211 | if (clock->p1 == 2) | |
4212 | dpll |= PLL_P1_DIVIDE_BY_TWO; | |
4213 | else | |
4214 | dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4215 | if (clock->p2 == 4) | |
4216 | dpll |= PLL_P2_DIVIDE_BY_4; | |
4217 | } | |
4218 | ||
4219 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) | |
4220 | /* XXX: just matching BIOS for now */ | |
4221 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ | |
4222 | dpll |= 3; | |
4223 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
4224 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) | |
4225 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
4226 | else | |
4227 | dpll |= PLL_REF_INPUT_DREFCLK; | |
4228 | ||
4229 | dpll |= DPLL_VCO_ENABLE; | |
4230 | I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); | |
4231 | POSTING_READ(DPLL(pipe)); | |
4232 | udelay(150); | |
4233 | ||
eb1cbe48 DV |
4234 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. |
4235 | * This is an exception to the general rule that mode_set doesn't turn | |
4236 | * things on. | |
4237 | */ | |
4238 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
4239 | intel_update_lvds(crtc, clock, adjusted_mode); | |
4240 | ||
5b5896e4 DV |
4241 | I915_WRITE(DPLL(pipe), dpll); |
4242 | ||
4243 | /* Wait for the clocks to stabilize. */ | |
4244 | POSTING_READ(DPLL(pipe)); | |
4245 | udelay(150); | |
4246 | ||
eb1cbe48 DV |
4247 | /* The pixel multiplier can only be updated once the |
4248 | * DPLL is enabled and the clocks are stable. | |
4249 | * | |
4250 | * So write it again. | |
4251 | */ | |
4252 | I915_WRITE(DPLL(pipe), dpll); | |
4253 | } | |
4254 | ||
f564048e EA |
4255 | static int i9xx_crtc_mode_set(struct drm_crtc *crtc, |
4256 | struct drm_display_mode *mode, | |
4257 | struct drm_display_mode *adjusted_mode, | |
4258 | int x, int y, | |
94352cf9 | 4259 | struct drm_framebuffer *fb) |
79e53945 JB |
4260 | { |
4261 | struct drm_device *dev = crtc->dev; | |
4262 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4263 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4264 | int pipe = intel_crtc->pipe; | |
80824003 | 4265 | int plane = intel_crtc->plane; |
c751ce4f | 4266 | int refclk, num_connectors = 0; |
652c393a | 4267 | intel_clock_t clock, reduced_clock; |
eb1cbe48 DV |
4268 | u32 dspcntr, pipeconf, vsyncshift; |
4269 | bool ok, has_reduced_clock = false, is_sdvo = false; | |
4270 | bool is_lvds = false, is_tv = false, is_dp = false; | |
5eddb70b | 4271 | struct intel_encoder *encoder; |
d4906093 | 4272 | const intel_limit_t *limit; |
5c3b82e2 | 4273 | int ret; |
79e53945 | 4274 | |
6c2b7c12 | 4275 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
5eddb70b | 4276 | switch (encoder->type) { |
79e53945 JB |
4277 | case INTEL_OUTPUT_LVDS: |
4278 | is_lvds = true; | |
4279 | break; | |
4280 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 4281 | case INTEL_OUTPUT_HDMI: |
79e53945 | 4282 | is_sdvo = true; |
5eddb70b | 4283 | if (encoder->needs_tv_clock) |
e2f0ba97 | 4284 | is_tv = true; |
79e53945 | 4285 | break; |
79e53945 JB |
4286 | case INTEL_OUTPUT_TVOUT: |
4287 | is_tv = true; | |
4288 | break; | |
a4fc5ed6 KP |
4289 | case INTEL_OUTPUT_DISPLAYPORT: |
4290 | is_dp = true; | |
4291 | break; | |
79e53945 | 4292 | } |
43565a06 | 4293 | |
c751ce4f | 4294 | num_connectors++; |
79e53945 JB |
4295 | } |
4296 | ||
c65d77d8 | 4297 | refclk = i9xx_get_refclk(crtc, num_connectors); |
79e53945 | 4298 | |
d4906093 ML |
4299 | /* |
4300 | * Returns a set of divisors for the desired target clock with the given | |
4301 | * refclk, or FALSE. The returned values represent the clock equation: | |
4302 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
4303 | */ | |
1b894b59 | 4304 | limit = intel_limit(crtc, refclk); |
cec2f356 SP |
4305 | ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL, |
4306 | &clock); | |
79e53945 JB |
4307 | if (!ok) { |
4308 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
5c3b82e2 | 4309 | return -EINVAL; |
79e53945 JB |
4310 | } |
4311 | ||
cda4b7d3 | 4312 | /* Ensure that the cursor is valid for the new mode before changing... */ |
6b383a7f | 4313 | intel_crtc_update_cursor(crtc, true); |
cda4b7d3 | 4314 | |
ddc9003c | 4315 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
cec2f356 SP |
4316 | /* |
4317 | * Ensure we match the reduced clock's P to the target clock. | |
4318 | * If the clocks don't match, we can't switch the display clock | |
4319 | * by using the FP0/FP1. In such case we will disable the LVDS | |
4320 | * downclock feature. | |
4321 | */ | |
ddc9003c | 4322 | has_reduced_clock = limit->find_pll(limit, crtc, |
5eddb70b CW |
4323 | dev_priv->lvds_downclock, |
4324 | refclk, | |
cec2f356 | 4325 | &clock, |
5eddb70b | 4326 | &reduced_clock); |
7026d4ac ZW |
4327 | } |
4328 | ||
c65d77d8 JB |
4329 | if (is_sdvo && is_tv) |
4330 | i9xx_adjust_sdvo_tv_clock(adjusted_mode, &clock); | |
7026d4ac | 4331 | |
a7516a05 JB |
4332 | i9xx_update_pll_dividers(crtc, &clock, has_reduced_clock ? |
4333 | &reduced_clock : NULL); | |
79e53945 | 4334 | |
eb1cbe48 DV |
4335 | if (IS_GEN2(dev)) |
4336 | i8xx_update_pll(crtc, adjusted_mode, &clock, num_connectors); | |
a0c4da24 JB |
4337 | else if (IS_VALLEYVIEW(dev)) |
4338 | vlv_update_pll(crtc, mode,adjusted_mode, &clock, NULL, | |
4339 | refclk, num_connectors); | |
79e53945 | 4340 | else |
eb1cbe48 DV |
4341 | i9xx_update_pll(crtc, mode, adjusted_mode, &clock, |
4342 | has_reduced_clock ? &reduced_clock : NULL, | |
4343 | num_connectors); | |
79e53945 JB |
4344 | |
4345 | /* setup pipeconf */ | |
5eddb70b | 4346 | pipeconf = I915_READ(PIPECONF(pipe)); |
79e53945 JB |
4347 | |
4348 | /* Set up the display plane register */ | |
4349 | dspcntr = DISPPLANE_GAMMA_ENABLE; | |
4350 | ||
929c77fb EA |
4351 | if (pipe == 0) |
4352 | dspcntr &= ~DISPPLANE_SEL_PIPE_MASK; | |
4353 | else | |
4354 | dspcntr |= DISPPLANE_SEL_PIPE_B; | |
79e53945 | 4355 | |
a6c45cf0 | 4356 | if (pipe == 0 && INTEL_INFO(dev)->gen < 4) { |
79e53945 JB |
4357 | /* Enable pixel doubling when the dot clock is > 90% of the (display) |
4358 | * core speed. | |
4359 | * | |
4360 | * XXX: No double-wide on 915GM pipe B. Is that the only reason for the | |
4361 | * pipe == 0 check? | |
4362 | */ | |
e70236a8 JB |
4363 | if (mode->clock > |
4364 | dev_priv->display.get_display_clock_speed(dev) * 9 / 10) | |
5eddb70b | 4365 | pipeconf |= PIPECONF_DOUBLE_WIDE; |
79e53945 | 4366 | else |
5eddb70b | 4367 | pipeconf &= ~PIPECONF_DOUBLE_WIDE; |
79e53945 JB |
4368 | } |
4369 | ||
3b5c78a3 AJ |
4370 | /* default to 8bpc */ |
4371 | pipeconf &= ~(PIPECONF_BPP_MASK | PIPECONF_DITHER_EN); | |
4372 | if (is_dp) { | |
0c96c65b | 4373 | if (adjusted_mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) { |
3b5c78a3 AJ |
4374 | pipeconf |= PIPECONF_BPP_6 | |
4375 | PIPECONF_DITHER_EN | | |
4376 | PIPECONF_DITHER_TYPE_SP; | |
4377 | } | |
4378 | } | |
4379 | ||
28c97730 | 4380 | DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B'); |
79e53945 JB |
4381 | drm_mode_debug_printmodeline(mode); |
4382 | ||
a7516a05 JB |
4383 | if (HAS_PIPE_CXSR(dev)) { |
4384 | if (intel_crtc->lowfreq_avail) { | |
28c97730 | 4385 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); |
652c393a | 4386 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; |
a7516a05 | 4387 | } else { |
28c97730 | 4388 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); |
652c393a JB |
4389 | pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK; |
4390 | } | |
4391 | } | |
4392 | ||
617cf884 | 4393 | pipeconf &= ~PIPECONF_INTERLACE_MASK; |
dbb02575 DV |
4394 | if (!IS_GEN2(dev) && |
4395 | adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { | |
734b4157 KH |
4396 | pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; |
4397 | /* the chip adds 2 halflines automatically */ | |
734b4157 | 4398 | adjusted_mode->crtc_vtotal -= 1; |
734b4157 | 4399 | adjusted_mode->crtc_vblank_end -= 1; |
0529a0d9 DV |
4400 | vsyncshift = adjusted_mode->crtc_hsync_start |
4401 | - adjusted_mode->crtc_htotal/2; | |
4402 | } else { | |
617cf884 | 4403 | pipeconf |= PIPECONF_PROGRESSIVE; |
0529a0d9 DV |
4404 | vsyncshift = 0; |
4405 | } | |
4406 | ||
4407 | if (!IS_GEN3(dev)) | |
4408 | I915_WRITE(VSYNCSHIFT(pipe), vsyncshift); | |
734b4157 | 4409 | |
5eddb70b CW |
4410 | I915_WRITE(HTOTAL(pipe), |
4411 | (adjusted_mode->crtc_hdisplay - 1) | | |
79e53945 | 4412 | ((adjusted_mode->crtc_htotal - 1) << 16)); |
5eddb70b CW |
4413 | I915_WRITE(HBLANK(pipe), |
4414 | (adjusted_mode->crtc_hblank_start - 1) | | |
79e53945 | 4415 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); |
5eddb70b CW |
4416 | I915_WRITE(HSYNC(pipe), |
4417 | (adjusted_mode->crtc_hsync_start - 1) | | |
79e53945 | 4418 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); |
5eddb70b CW |
4419 | |
4420 | I915_WRITE(VTOTAL(pipe), | |
4421 | (adjusted_mode->crtc_vdisplay - 1) | | |
79e53945 | 4422 | ((adjusted_mode->crtc_vtotal - 1) << 16)); |
5eddb70b CW |
4423 | I915_WRITE(VBLANK(pipe), |
4424 | (adjusted_mode->crtc_vblank_start - 1) | | |
79e53945 | 4425 | ((adjusted_mode->crtc_vblank_end - 1) << 16)); |
5eddb70b CW |
4426 | I915_WRITE(VSYNC(pipe), |
4427 | (adjusted_mode->crtc_vsync_start - 1) | | |
79e53945 | 4428 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); |
5eddb70b CW |
4429 | |
4430 | /* pipesrc and dspsize control the size that is scaled from, | |
4431 | * which should always be the user's requested size. | |
79e53945 | 4432 | */ |
929c77fb EA |
4433 | I915_WRITE(DSPSIZE(plane), |
4434 | ((mode->vdisplay - 1) << 16) | | |
4435 | (mode->hdisplay - 1)); | |
4436 | I915_WRITE(DSPPOS(plane), 0); | |
5eddb70b CW |
4437 | I915_WRITE(PIPESRC(pipe), |
4438 | ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); | |
2c07245f | 4439 | |
f564048e EA |
4440 | I915_WRITE(PIPECONF(pipe), pipeconf); |
4441 | POSTING_READ(PIPECONF(pipe)); | |
929c77fb | 4442 | intel_enable_pipe(dev_priv, pipe, false); |
f564048e EA |
4443 | |
4444 | intel_wait_for_vblank(dev, pipe); | |
4445 | ||
f564048e EA |
4446 | I915_WRITE(DSPCNTR(plane), dspcntr); |
4447 | POSTING_READ(DSPCNTR(plane)); | |
4448 | ||
94352cf9 | 4449 | ret = intel_pipe_set_base(crtc, x, y, fb); |
f564048e EA |
4450 | |
4451 | intel_update_watermarks(dev); | |
4452 | ||
f564048e EA |
4453 | return ret; |
4454 | } | |
4455 | ||
9fb526db KP |
4456 | /* |
4457 | * Initialize reference clocks when the driver loads | |
4458 | */ | |
4459 | void ironlake_init_pch_refclk(struct drm_device *dev) | |
13d83a67 JB |
4460 | { |
4461 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4462 | struct drm_mode_config *mode_config = &dev->mode_config; | |
13d83a67 | 4463 | struct intel_encoder *encoder; |
13d83a67 JB |
4464 | u32 temp; |
4465 | bool has_lvds = false; | |
199e5d79 KP |
4466 | bool has_cpu_edp = false; |
4467 | bool has_pch_edp = false; | |
4468 | bool has_panel = false; | |
99eb6a01 KP |
4469 | bool has_ck505 = false; |
4470 | bool can_ssc = false; | |
13d83a67 JB |
4471 | |
4472 | /* We need to take the global config into account */ | |
199e5d79 KP |
4473 | list_for_each_entry(encoder, &mode_config->encoder_list, |
4474 | base.head) { | |
4475 | switch (encoder->type) { | |
4476 | case INTEL_OUTPUT_LVDS: | |
4477 | has_panel = true; | |
4478 | has_lvds = true; | |
4479 | break; | |
4480 | case INTEL_OUTPUT_EDP: | |
4481 | has_panel = true; | |
4482 | if (intel_encoder_is_pch_edp(&encoder->base)) | |
4483 | has_pch_edp = true; | |
4484 | else | |
4485 | has_cpu_edp = true; | |
4486 | break; | |
13d83a67 JB |
4487 | } |
4488 | } | |
4489 | ||
99eb6a01 KP |
4490 | if (HAS_PCH_IBX(dev)) { |
4491 | has_ck505 = dev_priv->display_clock_mode; | |
4492 | can_ssc = has_ck505; | |
4493 | } else { | |
4494 | has_ck505 = false; | |
4495 | can_ssc = true; | |
4496 | } | |
4497 | ||
4498 | DRM_DEBUG_KMS("has_panel %d has_lvds %d has_pch_edp %d has_cpu_edp %d has_ck505 %d\n", | |
4499 | has_panel, has_lvds, has_pch_edp, has_cpu_edp, | |
4500 | has_ck505); | |
13d83a67 JB |
4501 | |
4502 | /* Ironlake: try to setup display ref clock before DPLL | |
4503 | * enabling. This is only under driver's control after | |
4504 | * PCH B stepping, previous chipset stepping should be | |
4505 | * ignoring this setting. | |
4506 | */ | |
4507 | temp = I915_READ(PCH_DREF_CONTROL); | |
4508 | /* Always enable nonspread source */ | |
4509 | temp &= ~DREF_NONSPREAD_SOURCE_MASK; | |
13d83a67 | 4510 | |
99eb6a01 KP |
4511 | if (has_ck505) |
4512 | temp |= DREF_NONSPREAD_CK505_ENABLE; | |
4513 | else | |
4514 | temp |= DREF_NONSPREAD_SOURCE_ENABLE; | |
13d83a67 | 4515 | |
199e5d79 KP |
4516 | if (has_panel) { |
4517 | temp &= ~DREF_SSC_SOURCE_MASK; | |
4518 | temp |= DREF_SSC_SOURCE_ENABLE; | |
13d83a67 | 4519 | |
199e5d79 | 4520 | /* SSC must be turned on before enabling the CPU output */ |
99eb6a01 | 4521 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 4522 | DRM_DEBUG_KMS("Using SSC on panel\n"); |
13d83a67 | 4523 | temp |= DREF_SSC1_ENABLE; |
e77166b5 DV |
4524 | } else |
4525 | temp &= ~DREF_SSC1_ENABLE; | |
199e5d79 KP |
4526 | |
4527 | /* Get SSC going before enabling the outputs */ | |
4528 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
4529 | POSTING_READ(PCH_DREF_CONTROL); | |
4530 | udelay(200); | |
4531 | ||
13d83a67 JB |
4532 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
4533 | ||
4534 | /* Enable CPU source on CPU attached eDP */ | |
199e5d79 | 4535 | if (has_cpu_edp) { |
99eb6a01 | 4536 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 4537 | DRM_DEBUG_KMS("Using SSC on eDP\n"); |
13d83a67 | 4538 | temp |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; |
199e5d79 | 4539 | } |
13d83a67 JB |
4540 | else |
4541 | temp |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; | |
199e5d79 KP |
4542 | } else |
4543 | temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
4544 | ||
4545 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
4546 | POSTING_READ(PCH_DREF_CONTROL); | |
4547 | udelay(200); | |
4548 | } else { | |
4549 | DRM_DEBUG_KMS("Disabling SSC entirely\n"); | |
4550 | ||
4551 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; | |
4552 | ||
4553 | /* Turn off CPU output */ | |
4554 | temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
4555 | ||
4556 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
4557 | POSTING_READ(PCH_DREF_CONTROL); | |
4558 | udelay(200); | |
4559 | ||
4560 | /* Turn off the SSC source */ | |
4561 | temp &= ~DREF_SSC_SOURCE_MASK; | |
4562 | temp |= DREF_SSC_SOURCE_DISABLE; | |
4563 | ||
4564 | /* Turn off SSC1 */ | |
4565 | temp &= ~ DREF_SSC1_ENABLE; | |
4566 | ||
13d83a67 JB |
4567 | I915_WRITE(PCH_DREF_CONTROL, temp); |
4568 | POSTING_READ(PCH_DREF_CONTROL); | |
4569 | udelay(200); | |
4570 | } | |
4571 | } | |
4572 | ||
d9d444cb JB |
4573 | static int ironlake_get_refclk(struct drm_crtc *crtc) |
4574 | { | |
4575 | struct drm_device *dev = crtc->dev; | |
4576 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4577 | struct intel_encoder *encoder; | |
d9d444cb JB |
4578 | struct intel_encoder *edp_encoder = NULL; |
4579 | int num_connectors = 0; | |
4580 | bool is_lvds = false; | |
4581 | ||
6c2b7c12 | 4582 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
d9d444cb JB |
4583 | switch (encoder->type) { |
4584 | case INTEL_OUTPUT_LVDS: | |
4585 | is_lvds = true; | |
4586 | break; | |
4587 | case INTEL_OUTPUT_EDP: | |
4588 | edp_encoder = encoder; | |
4589 | break; | |
4590 | } | |
4591 | num_connectors++; | |
4592 | } | |
4593 | ||
4594 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) { | |
4595 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", | |
4596 | dev_priv->lvds_ssc_freq); | |
4597 | return dev_priv->lvds_ssc_freq * 1000; | |
4598 | } | |
4599 | ||
4600 | return 120000; | |
4601 | } | |
4602 | ||
c8203565 PZ |
4603 | static void ironlake_set_pipeconf(struct drm_crtc *crtc, |
4604 | struct drm_display_mode *adjusted_mode, | |
4605 | bool dither) | |
4606 | { | |
4607 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; | |
4608 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4609 | int pipe = intel_crtc->pipe; | |
4610 | uint32_t val; | |
4611 | ||
4612 | val = I915_READ(PIPECONF(pipe)); | |
4613 | ||
4614 | val &= ~PIPE_BPC_MASK; | |
4615 | switch (intel_crtc->bpp) { | |
4616 | case 18: | |
4617 | val |= PIPE_6BPC; | |
4618 | break; | |
4619 | case 24: | |
4620 | val |= PIPE_8BPC; | |
4621 | break; | |
4622 | case 30: | |
4623 | val |= PIPE_10BPC; | |
4624 | break; | |
4625 | case 36: | |
4626 | val |= PIPE_12BPC; | |
4627 | break; | |
4628 | default: | |
4629 | val |= PIPE_8BPC; | |
4630 | break; | |
4631 | } | |
4632 | ||
4633 | val &= ~(PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK); | |
4634 | if (dither) | |
4635 | val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP); | |
4636 | ||
4637 | val &= ~PIPECONF_INTERLACE_MASK; | |
4638 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) | |
4639 | val |= PIPECONF_INTERLACED_ILK; | |
4640 | else | |
4641 | val |= PIPECONF_PROGRESSIVE; | |
4642 | ||
4643 | I915_WRITE(PIPECONF(pipe), val); | |
4644 | POSTING_READ(PIPECONF(pipe)); | |
4645 | } | |
4646 | ||
6591c6e4 PZ |
4647 | static bool ironlake_compute_clocks(struct drm_crtc *crtc, |
4648 | struct drm_display_mode *adjusted_mode, | |
4649 | intel_clock_t *clock, | |
4650 | bool *has_reduced_clock, | |
4651 | intel_clock_t *reduced_clock) | |
4652 | { | |
4653 | struct drm_device *dev = crtc->dev; | |
4654 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4655 | struct intel_encoder *intel_encoder; | |
4656 | int refclk; | |
4657 | const intel_limit_t *limit; | |
4658 | bool ret, is_sdvo = false, is_tv = false, is_lvds = false; | |
4659 | ||
4660 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { | |
4661 | switch (intel_encoder->type) { | |
4662 | case INTEL_OUTPUT_LVDS: | |
4663 | is_lvds = true; | |
4664 | break; | |
4665 | case INTEL_OUTPUT_SDVO: | |
4666 | case INTEL_OUTPUT_HDMI: | |
4667 | is_sdvo = true; | |
4668 | if (intel_encoder->needs_tv_clock) | |
4669 | is_tv = true; | |
4670 | break; | |
4671 | case INTEL_OUTPUT_TVOUT: | |
4672 | is_tv = true; | |
4673 | break; | |
4674 | } | |
4675 | } | |
4676 | ||
4677 | refclk = ironlake_get_refclk(crtc); | |
4678 | ||
4679 | /* | |
4680 | * Returns a set of divisors for the desired target clock with the given | |
4681 | * refclk, or FALSE. The returned values represent the clock equation: | |
4682 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
4683 | */ | |
4684 | limit = intel_limit(crtc, refclk); | |
4685 | ret = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL, | |
4686 | clock); | |
4687 | if (!ret) | |
4688 | return false; | |
4689 | ||
4690 | if (is_lvds && dev_priv->lvds_downclock_avail) { | |
4691 | /* | |
4692 | * Ensure we match the reduced clock's P to the target clock. | |
4693 | * If the clocks don't match, we can't switch the display clock | |
4694 | * by using the FP0/FP1. In such case we will disable the LVDS | |
4695 | * downclock feature. | |
4696 | */ | |
4697 | *has_reduced_clock = limit->find_pll(limit, crtc, | |
4698 | dev_priv->lvds_downclock, | |
4699 | refclk, | |
4700 | clock, | |
4701 | reduced_clock); | |
4702 | } | |
4703 | ||
4704 | if (is_sdvo && is_tv) | |
4705 | i9xx_adjust_sdvo_tv_clock(adjusted_mode, clock); | |
4706 | ||
4707 | return true; | |
4708 | } | |
4709 | ||
f564048e EA |
4710 | static int ironlake_crtc_mode_set(struct drm_crtc *crtc, |
4711 | struct drm_display_mode *mode, | |
4712 | struct drm_display_mode *adjusted_mode, | |
4713 | int x, int y, | |
94352cf9 | 4714 | struct drm_framebuffer *fb) |
79e53945 JB |
4715 | { |
4716 | struct drm_device *dev = crtc->dev; | |
4717 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4718 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4719 | int pipe = intel_crtc->pipe; | |
80824003 | 4720 | int plane = intel_crtc->plane; |
6591c6e4 | 4721 | int num_connectors = 0; |
652c393a | 4722 | intel_clock_t clock, reduced_clock; |
a1f9e77e | 4723 | u32 dpll, fp = 0, fp2 = 0; |
a07d6787 | 4724 | bool ok, has_reduced_clock = false, is_sdvo = false; |
a4fc5ed6 | 4725 | bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false; |
e3aef172 | 4726 | struct intel_encoder *encoder, *edp_encoder = NULL; |
5c3b82e2 | 4727 | int ret; |
2c07245f | 4728 | struct fdi_m_n m_n = {0}; |
fae14981 | 4729 | u32 temp; |
5a354204 JB |
4730 | int target_clock, pixel_multiplier, lane, link_bw, factor; |
4731 | unsigned int pipe_bpp; | |
4732 | bool dither; | |
e3aef172 | 4733 | bool is_cpu_edp = false, is_pch_edp = false; |
79e53945 | 4734 | |
6c2b7c12 | 4735 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
5eddb70b | 4736 | switch (encoder->type) { |
79e53945 JB |
4737 | case INTEL_OUTPUT_LVDS: |
4738 | is_lvds = true; | |
4739 | break; | |
4740 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 4741 | case INTEL_OUTPUT_HDMI: |
79e53945 | 4742 | is_sdvo = true; |
5eddb70b | 4743 | if (encoder->needs_tv_clock) |
e2f0ba97 | 4744 | is_tv = true; |
79e53945 | 4745 | break; |
79e53945 JB |
4746 | case INTEL_OUTPUT_TVOUT: |
4747 | is_tv = true; | |
4748 | break; | |
4749 | case INTEL_OUTPUT_ANALOG: | |
4750 | is_crt = true; | |
4751 | break; | |
a4fc5ed6 KP |
4752 | case INTEL_OUTPUT_DISPLAYPORT: |
4753 | is_dp = true; | |
4754 | break; | |
32f9d658 | 4755 | case INTEL_OUTPUT_EDP: |
e3aef172 JB |
4756 | is_dp = true; |
4757 | if (intel_encoder_is_pch_edp(&encoder->base)) | |
4758 | is_pch_edp = true; | |
4759 | else | |
4760 | is_cpu_edp = true; | |
4761 | edp_encoder = encoder; | |
32f9d658 | 4762 | break; |
79e53945 | 4763 | } |
43565a06 | 4764 | |
c751ce4f | 4765 | num_connectors++; |
79e53945 JB |
4766 | } |
4767 | ||
6591c6e4 PZ |
4768 | ok = ironlake_compute_clocks(crtc, adjusted_mode, &clock, |
4769 | &has_reduced_clock, &reduced_clock); | |
79e53945 JB |
4770 | if (!ok) { |
4771 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
5c3b82e2 | 4772 | return -EINVAL; |
79e53945 JB |
4773 | } |
4774 | ||
cda4b7d3 | 4775 | /* Ensure that the cursor is valid for the new mode before changing... */ |
6b383a7f | 4776 | intel_crtc_update_cursor(crtc, true); |
cda4b7d3 | 4777 | |
2c07245f | 4778 | /* FDI link */ |
8febb297 EA |
4779 | pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); |
4780 | lane = 0; | |
4781 | /* CPU eDP doesn't require FDI link, so just set DP M/N | |
4782 | according to current link config */ | |
e3aef172 | 4783 | if (is_cpu_edp) { |
e3aef172 | 4784 | intel_edp_link_config(edp_encoder, &lane, &link_bw); |
8febb297 | 4785 | } else { |
8febb297 EA |
4786 | /* FDI is a binary signal running at ~2.7GHz, encoding |
4787 | * each output octet as 10 bits. The actual frequency | |
4788 | * is stored as a divider into a 100MHz clock, and the | |
4789 | * mode pixel clock is stored in units of 1KHz. | |
4790 | * Hence the bw of each lane in terms of the mode signal | |
4791 | * is: | |
4792 | */ | |
4793 | link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10; | |
4794 | } | |
58a27471 | 4795 | |
94bf2ced DV |
4796 | /* [e]DP over FDI requires target mode clock instead of link clock. */ |
4797 | if (edp_encoder) | |
4798 | target_clock = intel_edp_target_clock(edp_encoder, mode); | |
4799 | else if (is_dp) | |
4800 | target_clock = mode->clock; | |
4801 | else | |
4802 | target_clock = adjusted_mode->clock; | |
4803 | ||
8febb297 | 4804 | /* determine panel color depth */ |
0c96c65b JN |
4805 | dither = intel_choose_pipe_bpp_dither(crtc, fb, &pipe_bpp, |
4806 | adjusted_mode); | |
c8203565 PZ |
4807 | if (is_lvds && dev_priv->lvds_dither) |
4808 | dither = true; | |
4809 | ||
4810 | if (pipe_bpp != 18 && pipe_bpp != 24 && pipe_bpp != 30 && | |
4811 | pipe_bpp != 36) { | |
62ac41a6 | 4812 | WARN(1, "intel_choose_pipe_bpp returned invalid value %d\n", |
c8203565 | 4813 | pipe_bpp); |
5a354204 | 4814 | pipe_bpp = 24; |
8febb297 | 4815 | } |
5a354204 | 4816 | intel_crtc->bpp = pipe_bpp; |
5a354204 | 4817 | |
8febb297 EA |
4818 | if (!lane) { |
4819 | /* | |
4820 | * Account for spread spectrum to avoid | |
4821 | * oversubscribing the link. Max center spread | |
4822 | * is 2.5%; use 5% for safety's sake. | |
4823 | */ | |
5a354204 | 4824 | u32 bps = target_clock * intel_crtc->bpp * 21 / 20; |
8febb297 | 4825 | lane = bps / (link_bw * 8) + 1; |
5eb08b69 | 4826 | } |
2c07245f | 4827 | |
8febb297 EA |
4828 | intel_crtc->fdi_lanes = lane; |
4829 | ||
4830 | if (pixel_multiplier > 1) | |
4831 | link_bw *= pixel_multiplier; | |
5a354204 JB |
4832 | ironlake_compute_m_n(intel_crtc->bpp, lane, target_clock, link_bw, |
4833 | &m_n); | |
8febb297 | 4834 | |
a07d6787 EA |
4835 | fp = clock.n << 16 | clock.m1 << 8 | clock.m2; |
4836 | if (has_reduced_clock) | |
4837 | fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 | | |
4838 | reduced_clock.m2; | |
79e53945 | 4839 | |
c1858123 | 4840 | /* Enable autotuning of the PLL clock (if permissible) */ |
8febb297 EA |
4841 | factor = 21; |
4842 | if (is_lvds) { | |
4843 | if ((intel_panel_use_ssc(dev_priv) && | |
4844 | dev_priv->lvds_ssc_freq == 100) || | |
4845 | (I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP) | |
4846 | factor = 25; | |
4847 | } else if (is_sdvo && is_tv) | |
4848 | factor = 20; | |
c1858123 | 4849 | |
cb0e0931 | 4850 | if (clock.m < factor * clock.n) |
8febb297 | 4851 | fp |= FP_CB_TUNE; |
2c07245f | 4852 | |
5eddb70b | 4853 | dpll = 0; |
2c07245f | 4854 | |
a07d6787 EA |
4855 | if (is_lvds) |
4856 | dpll |= DPLLB_MODE_LVDS; | |
4857 | else | |
4858 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
4859 | if (is_sdvo) { | |
4860 | int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); | |
4861 | if (pixel_multiplier > 1) { | |
4862 | dpll |= (pixel_multiplier - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; | |
79e53945 | 4863 | } |
a07d6787 EA |
4864 | dpll |= DPLL_DVO_HIGH_SPEED; |
4865 | } | |
e3aef172 | 4866 | if (is_dp && !is_cpu_edp) |
a07d6787 | 4867 | dpll |= DPLL_DVO_HIGH_SPEED; |
79e53945 | 4868 | |
a07d6787 EA |
4869 | /* compute bitmask from p1 value */ |
4870 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4871 | /* also FPA1 */ | |
4872 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
4873 | ||
4874 | switch (clock.p2) { | |
4875 | case 5: | |
4876 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
4877 | break; | |
4878 | case 7: | |
4879 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
4880 | break; | |
4881 | case 10: | |
4882 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
4883 | break; | |
4884 | case 14: | |
4885 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
4886 | break; | |
79e53945 JB |
4887 | } |
4888 | ||
43565a06 KH |
4889 | if (is_sdvo && is_tv) |
4890 | dpll |= PLL_REF_INPUT_TVCLKINBC; | |
4891 | else if (is_tv) | |
79e53945 | 4892 | /* XXX: just matching BIOS for now */ |
43565a06 | 4893 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ |
79e53945 | 4894 | dpll |= 3; |
a7615030 | 4895 | else if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
43565a06 | 4896 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
79e53945 JB |
4897 | else |
4898 | dpll |= PLL_REF_INPUT_DREFCLK; | |
4899 | ||
f7cb34d4 | 4900 | DRM_DEBUG_KMS("Mode for pipe %d:\n", pipe); |
79e53945 JB |
4901 | drm_mode_debug_printmodeline(mode); |
4902 | ||
9d82aa17 ED |
4903 | /* CPU eDP is the only output that doesn't need a PCH PLL of its own on |
4904 | * pre-Haswell/LPT generation */ | |
4905 | if (HAS_PCH_LPT(dev)) { | |
4906 | DRM_DEBUG_KMS("LPT detected: no PLL for pipe %d necessary\n", | |
4907 | pipe); | |
4908 | } else if (!is_cpu_edp) { | |
ee7b9f93 | 4909 | struct intel_pch_pll *pll; |
4b645f14 | 4910 | |
ee7b9f93 JB |
4911 | pll = intel_get_pch_pll(intel_crtc, dpll, fp); |
4912 | if (pll == NULL) { | |
4913 | DRM_DEBUG_DRIVER("failed to find PLL for pipe %d\n", | |
4914 | pipe); | |
4b645f14 JB |
4915 | return -EINVAL; |
4916 | } | |
ee7b9f93 JB |
4917 | } else |
4918 | intel_put_pch_pll(intel_crtc); | |
79e53945 JB |
4919 | |
4920 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. | |
4921 | * This is an exception to the general rule that mode_set doesn't turn | |
4922 | * things on. | |
4923 | */ | |
4924 | if (is_lvds) { | |
fae14981 | 4925 | temp = I915_READ(PCH_LVDS); |
5eddb70b | 4926 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; |
7885d205 JB |
4927 | if (HAS_PCH_CPT(dev)) { |
4928 | temp &= ~PORT_TRANS_SEL_MASK; | |
4b645f14 | 4929 | temp |= PORT_TRANS_SEL_CPT(pipe); |
7885d205 JB |
4930 | } else { |
4931 | if (pipe == 1) | |
4932 | temp |= LVDS_PIPEB_SELECT; | |
4933 | else | |
4934 | temp &= ~LVDS_PIPEB_SELECT; | |
4935 | } | |
4b645f14 | 4936 | |
a3e17eb8 | 4937 | /* set the corresponsding LVDS_BORDER bit */ |
5eddb70b | 4938 | temp |= dev_priv->lvds_border_bits; |
79e53945 JB |
4939 | /* Set the B0-B3 data pairs corresponding to whether we're going to |
4940 | * set the DPLLs for dual-channel mode or not. | |
4941 | */ | |
4942 | if (clock.p2 == 7) | |
5eddb70b | 4943 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; |
79e53945 | 4944 | else |
5eddb70b | 4945 | temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); |
79e53945 JB |
4946 | |
4947 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) | |
4948 | * appropriately here, but we need to look more thoroughly into how | |
4949 | * panels behave in the two modes. | |
4950 | */ | |
284d5df5 | 4951 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); |
aa9b500d | 4952 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) |
284d5df5 | 4953 | temp |= LVDS_HSYNC_POLARITY; |
aa9b500d | 4954 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) |
284d5df5 | 4955 | temp |= LVDS_VSYNC_POLARITY; |
fae14981 | 4956 | I915_WRITE(PCH_LVDS, temp); |
79e53945 | 4957 | } |
434ed097 | 4958 | |
e3aef172 | 4959 | if (is_dp && !is_cpu_edp) { |
a4fc5ed6 | 4960 | intel_dp_set_m_n(crtc, mode, adjusted_mode); |
8febb297 | 4961 | } else { |
8db9d77b | 4962 | /* For non-DP output, clear any trans DP clock recovery setting.*/ |
9db4a9c7 JB |
4963 | I915_WRITE(TRANSDATA_M1(pipe), 0); |
4964 | I915_WRITE(TRANSDATA_N1(pipe), 0); | |
4965 | I915_WRITE(TRANSDPLINK_M1(pipe), 0); | |
4966 | I915_WRITE(TRANSDPLINK_N1(pipe), 0); | |
8db9d77b | 4967 | } |
79e53945 | 4968 | |
ee7b9f93 JB |
4969 | if (intel_crtc->pch_pll) { |
4970 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); | |
5eddb70b | 4971 | |
32f9d658 | 4972 | /* Wait for the clocks to stabilize. */ |
ee7b9f93 | 4973 | POSTING_READ(intel_crtc->pch_pll->pll_reg); |
32f9d658 ZW |
4974 | udelay(150); |
4975 | ||
8febb297 EA |
4976 | /* The pixel multiplier can only be updated once the |
4977 | * DPLL is enabled and the clocks are stable. | |
4978 | * | |
4979 | * So write it again. | |
4980 | */ | |
ee7b9f93 | 4981 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); |
79e53945 | 4982 | } |
79e53945 | 4983 | |
5eddb70b | 4984 | intel_crtc->lowfreq_avail = false; |
ee7b9f93 | 4985 | if (intel_crtc->pch_pll) { |
4b645f14 | 4986 | if (is_lvds && has_reduced_clock && i915_powersave) { |
ee7b9f93 | 4987 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp2); |
4b645f14 | 4988 | intel_crtc->lowfreq_avail = true; |
4b645f14 | 4989 | } else { |
ee7b9f93 | 4990 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp); |
652c393a JB |
4991 | } |
4992 | } | |
4993 | ||
734b4157 | 4994 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { |
734b4157 | 4995 | /* the chip adds 2 halflines automatically */ |
734b4157 | 4996 | adjusted_mode->crtc_vtotal -= 1; |
734b4157 | 4997 | adjusted_mode->crtc_vblank_end -= 1; |
0529a0d9 DV |
4998 | I915_WRITE(VSYNCSHIFT(pipe), |
4999 | adjusted_mode->crtc_hsync_start | |
5000 | - adjusted_mode->crtc_htotal/2); | |
5001 | } else { | |
0529a0d9 DV |
5002 | I915_WRITE(VSYNCSHIFT(pipe), 0); |
5003 | } | |
734b4157 | 5004 | |
5eddb70b CW |
5005 | I915_WRITE(HTOTAL(pipe), |
5006 | (adjusted_mode->crtc_hdisplay - 1) | | |
79e53945 | 5007 | ((adjusted_mode->crtc_htotal - 1) << 16)); |
5eddb70b CW |
5008 | I915_WRITE(HBLANK(pipe), |
5009 | (adjusted_mode->crtc_hblank_start - 1) | | |
79e53945 | 5010 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); |
5eddb70b CW |
5011 | I915_WRITE(HSYNC(pipe), |
5012 | (adjusted_mode->crtc_hsync_start - 1) | | |
79e53945 | 5013 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); |
5eddb70b CW |
5014 | |
5015 | I915_WRITE(VTOTAL(pipe), | |
5016 | (adjusted_mode->crtc_vdisplay - 1) | | |
79e53945 | 5017 | ((adjusted_mode->crtc_vtotal - 1) << 16)); |
5eddb70b CW |
5018 | I915_WRITE(VBLANK(pipe), |
5019 | (adjusted_mode->crtc_vblank_start - 1) | | |
79e53945 | 5020 | ((adjusted_mode->crtc_vblank_end - 1) << 16)); |
5eddb70b CW |
5021 | I915_WRITE(VSYNC(pipe), |
5022 | (adjusted_mode->crtc_vsync_start - 1) | | |
79e53945 | 5023 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); |
5eddb70b | 5024 | |
8febb297 EA |
5025 | /* pipesrc controls the size that is scaled from, which should |
5026 | * always be the user's requested size. | |
79e53945 | 5027 | */ |
5eddb70b CW |
5028 | I915_WRITE(PIPESRC(pipe), |
5029 | ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); | |
2c07245f | 5030 | |
8febb297 EA |
5031 | I915_WRITE(PIPE_DATA_M1(pipe), TU_SIZE(m_n.tu) | m_n.gmch_m); |
5032 | I915_WRITE(PIPE_DATA_N1(pipe), m_n.gmch_n); | |
5033 | I915_WRITE(PIPE_LINK_M1(pipe), m_n.link_m); | |
5034 | I915_WRITE(PIPE_LINK_N1(pipe), m_n.link_n); | |
2c07245f | 5035 | |
e3aef172 | 5036 | if (is_cpu_edp) |
8febb297 | 5037 | ironlake_set_pll_edp(crtc, adjusted_mode->clock); |
2c07245f | 5038 | |
c8203565 | 5039 | ironlake_set_pipeconf(crtc, adjusted_mode, dither); |
79e53945 | 5040 | |
9d0498a2 | 5041 | intel_wait_for_vblank(dev, pipe); |
79e53945 | 5042 | |
a1f9e77e PZ |
5043 | /* Set up the display plane register */ |
5044 | I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE); | |
b24e7179 | 5045 | POSTING_READ(DSPCNTR(plane)); |
79e53945 | 5046 | |
94352cf9 | 5047 | ret = intel_pipe_set_base(crtc, x, y, fb); |
7662c8bd SL |
5048 | |
5049 | intel_update_watermarks(dev); | |
5050 | ||
1f8eeabf ED |
5051 | intel_update_linetime_watermarks(dev, pipe, adjusted_mode); |
5052 | ||
1f803ee5 | 5053 | return ret; |
79e53945 JB |
5054 | } |
5055 | ||
f564048e EA |
5056 | static int intel_crtc_mode_set(struct drm_crtc *crtc, |
5057 | struct drm_display_mode *mode, | |
5058 | struct drm_display_mode *adjusted_mode, | |
5059 | int x, int y, | |
94352cf9 | 5060 | struct drm_framebuffer *fb) |
f564048e EA |
5061 | { |
5062 | struct drm_device *dev = crtc->dev; | |
5063 | struct drm_i915_private *dev_priv = dev->dev_private; | |
0b701d27 EA |
5064 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5065 | int pipe = intel_crtc->pipe; | |
f564048e EA |
5066 | int ret; |
5067 | ||
0b701d27 | 5068 | drm_vblank_pre_modeset(dev, pipe); |
7662c8bd | 5069 | |
f564048e | 5070 | ret = dev_priv->display.crtc_mode_set(crtc, mode, adjusted_mode, |
94352cf9 | 5071 | x, y, fb); |
79e53945 | 5072 | drm_vblank_post_modeset(dev, pipe); |
5c3b82e2 | 5073 | |
1f803ee5 | 5074 | return ret; |
79e53945 JB |
5075 | } |
5076 | ||
3a9627f4 WF |
5077 | static bool intel_eld_uptodate(struct drm_connector *connector, |
5078 | int reg_eldv, uint32_t bits_eldv, | |
5079 | int reg_elda, uint32_t bits_elda, | |
5080 | int reg_edid) | |
5081 | { | |
5082 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
5083 | uint8_t *eld = connector->eld; | |
5084 | uint32_t i; | |
5085 | ||
5086 | i = I915_READ(reg_eldv); | |
5087 | i &= bits_eldv; | |
5088 | ||
5089 | if (!eld[0]) | |
5090 | return !i; | |
5091 | ||
5092 | if (!i) | |
5093 | return false; | |
5094 | ||
5095 | i = I915_READ(reg_elda); | |
5096 | i &= ~bits_elda; | |
5097 | I915_WRITE(reg_elda, i); | |
5098 | ||
5099 | for (i = 0; i < eld[2]; i++) | |
5100 | if (I915_READ(reg_edid) != *((uint32_t *)eld + i)) | |
5101 | return false; | |
5102 | ||
5103 | return true; | |
5104 | } | |
5105 | ||
e0dac65e WF |
5106 | static void g4x_write_eld(struct drm_connector *connector, |
5107 | struct drm_crtc *crtc) | |
5108 | { | |
5109 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
5110 | uint8_t *eld = connector->eld; | |
5111 | uint32_t eldv; | |
5112 | uint32_t len; | |
5113 | uint32_t i; | |
5114 | ||
5115 | i = I915_READ(G4X_AUD_VID_DID); | |
5116 | ||
5117 | if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL) | |
5118 | eldv = G4X_ELDV_DEVCL_DEVBLC; | |
5119 | else | |
5120 | eldv = G4X_ELDV_DEVCTG; | |
5121 | ||
3a9627f4 WF |
5122 | if (intel_eld_uptodate(connector, |
5123 | G4X_AUD_CNTL_ST, eldv, | |
5124 | G4X_AUD_CNTL_ST, G4X_ELD_ADDR, | |
5125 | G4X_HDMIW_HDMIEDID)) | |
5126 | return; | |
5127 | ||
e0dac65e WF |
5128 | i = I915_READ(G4X_AUD_CNTL_ST); |
5129 | i &= ~(eldv | G4X_ELD_ADDR); | |
5130 | len = (i >> 9) & 0x1f; /* ELD buffer size */ | |
5131 | I915_WRITE(G4X_AUD_CNTL_ST, i); | |
5132 | ||
5133 | if (!eld[0]) | |
5134 | return; | |
5135 | ||
5136 | len = min_t(uint8_t, eld[2], len); | |
5137 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
5138 | for (i = 0; i < len; i++) | |
5139 | I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i)); | |
5140 | ||
5141 | i = I915_READ(G4X_AUD_CNTL_ST); | |
5142 | i |= eldv; | |
5143 | I915_WRITE(G4X_AUD_CNTL_ST, i); | |
5144 | } | |
5145 | ||
83358c85 WX |
5146 | static void haswell_write_eld(struct drm_connector *connector, |
5147 | struct drm_crtc *crtc) | |
5148 | { | |
5149 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
5150 | uint8_t *eld = connector->eld; | |
5151 | struct drm_device *dev = crtc->dev; | |
5152 | uint32_t eldv; | |
5153 | uint32_t i; | |
5154 | int len; | |
5155 | int pipe = to_intel_crtc(crtc)->pipe; | |
5156 | int tmp; | |
5157 | ||
5158 | int hdmiw_hdmiedid = HSW_AUD_EDID_DATA(pipe); | |
5159 | int aud_cntl_st = HSW_AUD_DIP_ELD_CTRL(pipe); | |
5160 | int aud_config = HSW_AUD_CFG(pipe); | |
5161 | int aud_cntrl_st2 = HSW_AUD_PIN_ELD_CP_VLD; | |
5162 | ||
5163 | ||
5164 | DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n"); | |
5165 | ||
5166 | /* Audio output enable */ | |
5167 | DRM_DEBUG_DRIVER("HDMI audio: enable codec\n"); | |
5168 | tmp = I915_READ(aud_cntrl_st2); | |
5169 | tmp |= (AUDIO_OUTPUT_ENABLE_A << (pipe * 4)); | |
5170 | I915_WRITE(aud_cntrl_st2, tmp); | |
5171 | ||
5172 | /* Wait for 1 vertical blank */ | |
5173 | intel_wait_for_vblank(dev, pipe); | |
5174 | ||
5175 | /* Set ELD valid state */ | |
5176 | tmp = I915_READ(aud_cntrl_st2); | |
5177 | DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%8x\n", tmp); | |
5178 | tmp |= (AUDIO_ELD_VALID_A << (pipe * 4)); | |
5179 | I915_WRITE(aud_cntrl_st2, tmp); | |
5180 | tmp = I915_READ(aud_cntrl_st2); | |
5181 | DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%8x\n", tmp); | |
5182 | ||
5183 | /* Enable HDMI mode */ | |
5184 | tmp = I915_READ(aud_config); | |
5185 | DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%8x\n", tmp); | |
5186 | /* clear N_programing_enable and N_value_index */ | |
5187 | tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE); | |
5188 | I915_WRITE(aud_config, tmp); | |
5189 | ||
5190 | DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe)); | |
5191 | ||
5192 | eldv = AUDIO_ELD_VALID_A << (pipe * 4); | |
5193 | ||
5194 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { | |
5195 | DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n"); | |
5196 | eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */ | |
5197 | I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */ | |
5198 | } else | |
5199 | I915_WRITE(aud_config, 0); | |
5200 | ||
5201 | if (intel_eld_uptodate(connector, | |
5202 | aud_cntrl_st2, eldv, | |
5203 | aud_cntl_st, IBX_ELD_ADDRESS, | |
5204 | hdmiw_hdmiedid)) | |
5205 | return; | |
5206 | ||
5207 | i = I915_READ(aud_cntrl_st2); | |
5208 | i &= ~eldv; | |
5209 | I915_WRITE(aud_cntrl_st2, i); | |
5210 | ||
5211 | if (!eld[0]) | |
5212 | return; | |
5213 | ||
5214 | i = I915_READ(aud_cntl_st); | |
5215 | i &= ~IBX_ELD_ADDRESS; | |
5216 | I915_WRITE(aud_cntl_st, i); | |
5217 | i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */ | |
5218 | DRM_DEBUG_DRIVER("port num:%d\n", i); | |
5219 | ||
5220 | len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */ | |
5221 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
5222 | for (i = 0; i < len; i++) | |
5223 | I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i)); | |
5224 | ||
5225 | i = I915_READ(aud_cntrl_st2); | |
5226 | i |= eldv; | |
5227 | I915_WRITE(aud_cntrl_st2, i); | |
5228 | ||
5229 | } | |
5230 | ||
e0dac65e WF |
5231 | static void ironlake_write_eld(struct drm_connector *connector, |
5232 | struct drm_crtc *crtc) | |
5233 | { | |
5234 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
5235 | uint8_t *eld = connector->eld; | |
5236 | uint32_t eldv; | |
5237 | uint32_t i; | |
5238 | int len; | |
5239 | int hdmiw_hdmiedid; | |
b6daa025 | 5240 | int aud_config; |
e0dac65e WF |
5241 | int aud_cntl_st; |
5242 | int aud_cntrl_st2; | |
9b138a83 | 5243 | int pipe = to_intel_crtc(crtc)->pipe; |
e0dac65e | 5244 | |
b3f33cbf | 5245 | if (HAS_PCH_IBX(connector->dev)) { |
9b138a83 WX |
5246 | hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe); |
5247 | aud_config = IBX_AUD_CFG(pipe); | |
5248 | aud_cntl_st = IBX_AUD_CNTL_ST(pipe); | |
1202b4c6 | 5249 | aud_cntrl_st2 = IBX_AUD_CNTL_ST2; |
e0dac65e | 5250 | } else { |
9b138a83 WX |
5251 | hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe); |
5252 | aud_config = CPT_AUD_CFG(pipe); | |
5253 | aud_cntl_st = CPT_AUD_CNTL_ST(pipe); | |
1202b4c6 | 5254 | aud_cntrl_st2 = CPT_AUD_CNTRL_ST2; |
e0dac65e WF |
5255 | } |
5256 | ||
9b138a83 | 5257 | DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe)); |
e0dac65e WF |
5258 | |
5259 | i = I915_READ(aud_cntl_st); | |
9b138a83 | 5260 | i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */ |
e0dac65e WF |
5261 | if (!i) { |
5262 | DRM_DEBUG_DRIVER("Audio directed to unknown port\n"); | |
5263 | /* operate blindly on all ports */ | |
1202b4c6 WF |
5264 | eldv = IBX_ELD_VALIDB; |
5265 | eldv |= IBX_ELD_VALIDB << 4; | |
5266 | eldv |= IBX_ELD_VALIDB << 8; | |
e0dac65e WF |
5267 | } else { |
5268 | DRM_DEBUG_DRIVER("ELD on port %c\n", 'A' + i); | |
1202b4c6 | 5269 | eldv = IBX_ELD_VALIDB << ((i - 1) * 4); |
e0dac65e WF |
5270 | } |
5271 | ||
3a9627f4 WF |
5272 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
5273 | DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n"); | |
5274 | eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */ | |
b6daa025 WF |
5275 | I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */ |
5276 | } else | |
5277 | I915_WRITE(aud_config, 0); | |
e0dac65e | 5278 | |
3a9627f4 WF |
5279 | if (intel_eld_uptodate(connector, |
5280 | aud_cntrl_st2, eldv, | |
5281 | aud_cntl_st, IBX_ELD_ADDRESS, | |
5282 | hdmiw_hdmiedid)) | |
5283 | return; | |
5284 | ||
e0dac65e WF |
5285 | i = I915_READ(aud_cntrl_st2); |
5286 | i &= ~eldv; | |
5287 | I915_WRITE(aud_cntrl_st2, i); | |
5288 | ||
5289 | if (!eld[0]) | |
5290 | return; | |
5291 | ||
e0dac65e | 5292 | i = I915_READ(aud_cntl_st); |
1202b4c6 | 5293 | i &= ~IBX_ELD_ADDRESS; |
e0dac65e WF |
5294 | I915_WRITE(aud_cntl_st, i); |
5295 | ||
5296 | len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */ | |
5297 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
5298 | for (i = 0; i < len; i++) | |
5299 | I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i)); | |
5300 | ||
5301 | i = I915_READ(aud_cntrl_st2); | |
5302 | i |= eldv; | |
5303 | I915_WRITE(aud_cntrl_st2, i); | |
5304 | } | |
5305 | ||
5306 | void intel_write_eld(struct drm_encoder *encoder, | |
5307 | struct drm_display_mode *mode) | |
5308 | { | |
5309 | struct drm_crtc *crtc = encoder->crtc; | |
5310 | struct drm_connector *connector; | |
5311 | struct drm_device *dev = encoder->dev; | |
5312 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5313 | ||
5314 | connector = drm_select_eld(encoder, mode); | |
5315 | if (!connector) | |
5316 | return; | |
5317 | ||
5318 | DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", | |
5319 | connector->base.id, | |
5320 | drm_get_connector_name(connector), | |
5321 | connector->encoder->base.id, | |
5322 | drm_get_encoder_name(connector->encoder)); | |
5323 | ||
5324 | connector->eld[6] = drm_av_sync_delay(connector, mode) / 2; | |
5325 | ||
5326 | if (dev_priv->display.write_eld) | |
5327 | dev_priv->display.write_eld(connector, crtc); | |
5328 | } | |
5329 | ||
79e53945 JB |
5330 | /** Loads the palette/gamma unit for the CRTC with the prepared values */ |
5331 | void intel_crtc_load_lut(struct drm_crtc *crtc) | |
5332 | { | |
5333 | struct drm_device *dev = crtc->dev; | |
5334 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5335 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
9db4a9c7 | 5336 | int palreg = PALETTE(intel_crtc->pipe); |
79e53945 JB |
5337 | int i; |
5338 | ||
5339 | /* The clocks have to be on to load the palette. */ | |
aed3f09d | 5340 | if (!crtc->enabled || !intel_crtc->active) |
79e53945 JB |
5341 | return; |
5342 | ||
f2b115e6 | 5343 | /* use legacy palette for Ironlake */ |
bad720ff | 5344 | if (HAS_PCH_SPLIT(dev)) |
9db4a9c7 | 5345 | palreg = LGC_PALETTE(intel_crtc->pipe); |
2c07245f | 5346 | |
79e53945 JB |
5347 | for (i = 0; i < 256; i++) { |
5348 | I915_WRITE(palreg + 4 * i, | |
5349 | (intel_crtc->lut_r[i] << 16) | | |
5350 | (intel_crtc->lut_g[i] << 8) | | |
5351 | intel_crtc->lut_b[i]); | |
5352 | } | |
5353 | } | |
5354 | ||
560b85bb CW |
5355 | static void i845_update_cursor(struct drm_crtc *crtc, u32 base) |
5356 | { | |
5357 | struct drm_device *dev = crtc->dev; | |
5358 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5359 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5360 | bool visible = base != 0; | |
5361 | u32 cntl; | |
5362 | ||
5363 | if (intel_crtc->cursor_visible == visible) | |
5364 | return; | |
5365 | ||
9db4a9c7 | 5366 | cntl = I915_READ(_CURACNTR); |
560b85bb CW |
5367 | if (visible) { |
5368 | /* On these chipsets we can only modify the base whilst | |
5369 | * the cursor is disabled. | |
5370 | */ | |
9db4a9c7 | 5371 | I915_WRITE(_CURABASE, base); |
560b85bb CW |
5372 | |
5373 | cntl &= ~(CURSOR_FORMAT_MASK); | |
5374 | /* XXX width must be 64, stride 256 => 0x00 << 28 */ | |
5375 | cntl |= CURSOR_ENABLE | | |
5376 | CURSOR_GAMMA_ENABLE | | |
5377 | CURSOR_FORMAT_ARGB; | |
5378 | } else | |
5379 | cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE); | |
9db4a9c7 | 5380 | I915_WRITE(_CURACNTR, cntl); |
560b85bb CW |
5381 | |
5382 | intel_crtc->cursor_visible = visible; | |
5383 | } | |
5384 | ||
5385 | static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base) | |
5386 | { | |
5387 | struct drm_device *dev = crtc->dev; | |
5388 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5389 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5390 | int pipe = intel_crtc->pipe; | |
5391 | bool visible = base != 0; | |
5392 | ||
5393 | if (intel_crtc->cursor_visible != visible) { | |
548f245b | 5394 | uint32_t cntl = I915_READ(CURCNTR(pipe)); |
560b85bb CW |
5395 | if (base) { |
5396 | cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT); | |
5397 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; | |
5398 | cntl |= pipe << 28; /* Connect to correct pipe */ | |
5399 | } else { | |
5400 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); | |
5401 | cntl |= CURSOR_MODE_DISABLE; | |
5402 | } | |
9db4a9c7 | 5403 | I915_WRITE(CURCNTR(pipe), cntl); |
560b85bb CW |
5404 | |
5405 | intel_crtc->cursor_visible = visible; | |
5406 | } | |
5407 | /* and commit changes on next vblank */ | |
9db4a9c7 | 5408 | I915_WRITE(CURBASE(pipe), base); |
560b85bb CW |
5409 | } |
5410 | ||
65a21cd6 JB |
5411 | static void ivb_update_cursor(struct drm_crtc *crtc, u32 base) |
5412 | { | |
5413 | struct drm_device *dev = crtc->dev; | |
5414 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5415 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5416 | int pipe = intel_crtc->pipe; | |
5417 | bool visible = base != 0; | |
5418 | ||
5419 | if (intel_crtc->cursor_visible != visible) { | |
5420 | uint32_t cntl = I915_READ(CURCNTR_IVB(pipe)); | |
5421 | if (base) { | |
5422 | cntl &= ~CURSOR_MODE; | |
5423 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; | |
5424 | } else { | |
5425 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); | |
5426 | cntl |= CURSOR_MODE_DISABLE; | |
5427 | } | |
5428 | I915_WRITE(CURCNTR_IVB(pipe), cntl); | |
5429 | ||
5430 | intel_crtc->cursor_visible = visible; | |
5431 | } | |
5432 | /* and commit changes on next vblank */ | |
5433 | I915_WRITE(CURBASE_IVB(pipe), base); | |
5434 | } | |
5435 | ||
cda4b7d3 | 5436 | /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */ |
6b383a7f CW |
5437 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, |
5438 | bool on) | |
cda4b7d3 CW |
5439 | { |
5440 | struct drm_device *dev = crtc->dev; | |
5441 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5442 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5443 | int pipe = intel_crtc->pipe; | |
5444 | int x = intel_crtc->cursor_x; | |
5445 | int y = intel_crtc->cursor_y; | |
560b85bb | 5446 | u32 base, pos; |
cda4b7d3 CW |
5447 | bool visible; |
5448 | ||
5449 | pos = 0; | |
5450 | ||
6b383a7f | 5451 | if (on && crtc->enabled && crtc->fb) { |
cda4b7d3 CW |
5452 | base = intel_crtc->cursor_addr; |
5453 | if (x > (int) crtc->fb->width) | |
5454 | base = 0; | |
5455 | ||
5456 | if (y > (int) crtc->fb->height) | |
5457 | base = 0; | |
5458 | } else | |
5459 | base = 0; | |
5460 | ||
5461 | if (x < 0) { | |
5462 | if (x + intel_crtc->cursor_width < 0) | |
5463 | base = 0; | |
5464 | ||
5465 | pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT; | |
5466 | x = -x; | |
5467 | } | |
5468 | pos |= x << CURSOR_X_SHIFT; | |
5469 | ||
5470 | if (y < 0) { | |
5471 | if (y + intel_crtc->cursor_height < 0) | |
5472 | base = 0; | |
5473 | ||
5474 | pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT; | |
5475 | y = -y; | |
5476 | } | |
5477 | pos |= y << CURSOR_Y_SHIFT; | |
5478 | ||
5479 | visible = base != 0; | |
560b85bb | 5480 | if (!visible && !intel_crtc->cursor_visible) |
cda4b7d3 CW |
5481 | return; |
5482 | ||
0cd83aa9 | 5483 | if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) { |
65a21cd6 JB |
5484 | I915_WRITE(CURPOS_IVB(pipe), pos); |
5485 | ivb_update_cursor(crtc, base); | |
5486 | } else { | |
5487 | I915_WRITE(CURPOS(pipe), pos); | |
5488 | if (IS_845G(dev) || IS_I865G(dev)) | |
5489 | i845_update_cursor(crtc, base); | |
5490 | else | |
5491 | i9xx_update_cursor(crtc, base); | |
5492 | } | |
cda4b7d3 CW |
5493 | } |
5494 | ||
79e53945 | 5495 | static int intel_crtc_cursor_set(struct drm_crtc *crtc, |
05394f39 | 5496 | struct drm_file *file, |
79e53945 JB |
5497 | uint32_t handle, |
5498 | uint32_t width, uint32_t height) | |
5499 | { | |
5500 | struct drm_device *dev = crtc->dev; | |
5501 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5502 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
05394f39 | 5503 | struct drm_i915_gem_object *obj; |
cda4b7d3 | 5504 | uint32_t addr; |
3f8bc370 | 5505 | int ret; |
79e53945 | 5506 | |
79e53945 JB |
5507 | /* if we want to turn off the cursor ignore width and height */ |
5508 | if (!handle) { | |
28c97730 | 5509 | DRM_DEBUG_KMS("cursor off\n"); |
3f8bc370 | 5510 | addr = 0; |
05394f39 | 5511 | obj = NULL; |
5004417d | 5512 | mutex_lock(&dev->struct_mutex); |
3f8bc370 | 5513 | goto finish; |
79e53945 JB |
5514 | } |
5515 | ||
5516 | /* Currently we only support 64x64 cursors */ | |
5517 | if (width != 64 || height != 64) { | |
5518 | DRM_ERROR("we currently only support 64x64 cursors\n"); | |
5519 | return -EINVAL; | |
5520 | } | |
5521 | ||
05394f39 | 5522 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle)); |
c8725226 | 5523 | if (&obj->base == NULL) |
79e53945 JB |
5524 | return -ENOENT; |
5525 | ||
05394f39 | 5526 | if (obj->base.size < width * height * 4) { |
79e53945 | 5527 | DRM_ERROR("buffer is to small\n"); |
34b8686e DA |
5528 | ret = -ENOMEM; |
5529 | goto fail; | |
79e53945 JB |
5530 | } |
5531 | ||
71acb5eb | 5532 | /* we only need to pin inside GTT if cursor is non-phy */ |
7f9872e0 | 5533 | mutex_lock(&dev->struct_mutex); |
b295d1b6 | 5534 | if (!dev_priv->info->cursor_needs_physical) { |
d9e86c0e CW |
5535 | if (obj->tiling_mode) { |
5536 | DRM_ERROR("cursor cannot be tiled\n"); | |
5537 | ret = -EINVAL; | |
5538 | goto fail_locked; | |
5539 | } | |
5540 | ||
2da3b9b9 | 5541 | ret = i915_gem_object_pin_to_display_plane(obj, 0, NULL); |
e7b526bb CW |
5542 | if (ret) { |
5543 | DRM_ERROR("failed to move cursor bo into the GTT\n"); | |
2da3b9b9 | 5544 | goto fail_locked; |
e7b526bb CW |
5545 | } |
5546 | ||
d9e86c0e CW |
5547 | ret = i915_gem_object_put_fence(obj); |
5548 | if (ret) { | |
2da3b9b9 | 5549 | DRM_ERROR("failed to release fence for cursor"); |
d9e86c0e CW |
5550 | goto fail_unpin; |
5551 | } | |
5552 | ||
05394f39 | 5553 | addr = obj->gtt_offset; |
71acb5eb | 5554 | } else { |
6eeefaf3 | 5555 | int align = IS_I830(dev) ? 16 * 1024 : 256; |
05394f39 | 5556 | ret = i915_gem_attach_phys_object(dev, obj, |
6eeefaf3 CW |
5557 | (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1, |
5558 | align); | |
71acb5eb DA |
5559 | if (ret) { |
5560 | DRM_ERROR("failed to attach phys object\n"); | |
7f9872e0 | 5561 | goto fail_locked; |
71acb5eb | 5562 | } |
05394f39 | 5563 | addr = obj->phys_obj->handle->busaddr; |
3f8bc370 KH |
5564 | } |
5565 | ||
a6c45cf0 | 5566 | if (IS_GEN2(dev)) |
14b60391 JB |
5567 | I915_WRITE(CURSIZE, (height << 12) | width); |
5568 | ||
3f8bc370 | 5569 | finish: |
3f8bc370 | 5570 | if (intel_crtc->cursor_bo) { |
b295d1b6 | 5571 | if (dev_priv->info->cursor_needs_physical) { |
05394f39 | 5572 | if (intel_crtc->cursor_bo != obj) |
71acb5eb DA |
5573 | i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo); |
5574 | } else | |
5575 | i915_gem_object_unpin(intel_crtc->cursor_bo); | |
05394f39 | 5576 | drm_gem_object_unreference(&intel_crtc->cursor_bo->base); |
3f8bc370 | 5577 | } |
80824003 | 5578 | |
7f9872e0 | 5579 | mutex_unlock(&dev->struct_mutex); |
3f8bc370 KH |
5580 | |
5581 | intel_crtc->cursor_addr = addr; | |
05394f39 | 5582 | intel_crtc->cursor_bo = obj; |
cda4b7d3 CW |
5583 | intel_crtc->cursor_width = width; |
5584 | intel_crtc->cursor_height = height; | |
5585 | ||
6b383a7f | 5586 | intel_crtc_update_cursor(crtc, true); |
3f8bc370 | 5587 | |
79e53945 | 5588 | return 0; |
e7b526bb | 5589 | fail_unpin: |
05394f39 | 5590 | i915_gem_object_unpin(obj); |
7f9872e0 | 5591 | fail_locked: |
34b8686e | 5592 | mutex_unlock(&dev->struct_mutex); |
bc9025bd | 5593 | fail: |
05394f39 | 5594 | drm_gem_object_unreference_unlocked(&obj->base); |
34b8686e | 5595 | return ret; |
79e53945 JB |
5596 | } |
5597 | ||
5598 | static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) | |
5599 | { | |
79e53945 | 5600 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 5601 | |
cda4b7d3 CW |
5602 | intel_crtc->cursor_x = x; |
5603 | intel_crtc->cursor_y = y; | |
652c393a | 5604 | |
6b383a7f | 5605 | intel_crtc_update_cursor(crtc, true); |
79e53945 JB |
5606 | |
5607 | return 0; | |
5608 | } | |
5609 | ||
5610 | /** Sets the color ramps on behalf of RandR */ | |
5611 | void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, | |
5612 | u16 blue, int regno) | |
5613 | { | |
5614 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5615 | ||
5616 | intel_crtc->lut_r[regno] = red >> 8; | |
5617 | intel_crtc->lut_g[regno] = green >> 8; | |
5618 | intel_crtc->lut_b[regno] = blue >> 8; | |
5619 | } | |
5620 | ||
b8c00ac5 DA |
5621 | void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, |
5622 | u16 *blue, int regno) | |
5623 | { | |
5624 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5625 | ||
5626 | *red = intel_crtc->lut_r[regno] << 8; | |
5627 | *green = intel_crtc->lut_g[regno] << 8; | |
5628 | *blue = intel_crtc->lut_b[regno] << 8; | |
5629 | } | |
5630 | ||
79e53945 | 5631 | static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, |
7203425a | 5632 | u16 *blue, uint32_t start, uint32_t size) |
79e53945 | 5633 | { |
7203425a | 5634 | int end = (start + size > 256) ? 256 : start + size, i; |
79e53945 | 5635 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 5636 | |
7203425a | 5637 | for (i = start; i < end; i++) { |
79e53945 JB |
5638 | intel_crtc->lut_r[i] = red[i] >> 8; |
5639 | intel_crtc->lut_g[i] = green[i] >> 8; | |
5640 | intel_crtc->lut_b[i] = blue[i] >> 8; | |
5641 | } | |
5642 | ||
5643 | intel_crtc_load_lut(crtc); | |
5644 | } | |
5645 | ||
5646 | /** | |
5647 | * Get a pipe with a simple mode set on it for doing load-based monitor | |
5648 | * detection. | |
5649 | * | |
5650 | * It will be up to the load-detect code to adjust the pipe as appropriate for | |
c751ce4f | 5651 | * its requirements. The pipe will be connected to no other encoders. |
79e53945 | 5652 | * |
c751ce4f | 5653 | * Currently this code will only succeed if there is a pipe with no encoders |
79e53945 JB |
5654 | * configured for it. In the future, it could choose to temporarily disable |
5655 | * some outputs to free up a pipe for its use. | |
5656 | * | |
5657 | * \return crtc, or NULL if no pipes are available. | |
5658 | */ | |
5659 | ||
5660 | /* VESA 640x480x72Hz mode to set on the pipe */ | |
5661 | static struct drm_display_mode load_detect_mode = { | |
5662 | DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, | |
5663 | 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), | |
5664 | }; | |
5665 | ||
d2dff872 CW |
5666 | static struct drm_framebuffer * |
5667 | intel_framebuffer_create(struct drm_device *dev, | |
308e5bcb | 5668 | struct drm_mode_fb_cmd2 *mode_cmd, |
d2dff872 CW |
5669 | struct drm_i915_gem_object *obj) |
5670 | { | |
5671 | struct intel_framebuffer *intel_fb; | |
5672 | int ret; | |
5673 | ||
5674 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); | |
5675 | if (!intel_fb) { | |
5676 | drm_gem_object_unreference_unlocked(&obj->base); | |
5677 | return ERR_PTR(-ENOMEM); | |
5678 | } | |
5679 | ||
5680 | ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj); | |
5681 | if (ret) { | |
5682 | drm_gem_object_unreference_unlocked(&obj->base); | |
5683 | kfree(intel_fb); | |
5684 | return ERR_PTR(ret); | |
5685 | } | |
5686 | ||
5687 | return &intel_fb->base; | |
5688 | } | |
5689 | ||
5690 | static u32 | |
5691 | intel_framebuffer_pitch_for_width(int width, int bpp) | |
5692 | { | |
5693 | u32 pitch = DIV_ROUND_UP(width * bpp, 8); | |
5694 | return ALIGN(pitch, 64); | |
5695 | } | |
5696 | ||
5697 | static u32 | |
5698 | intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp) | |
5699 | { | |
5700 | u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp); | |
5701 | return ALIGN(pitch * mode->vdisplay, PAGE_SIZE); | |
5702 | } | |
5703 | ||
5704 | static struct drm_framebuffer * | |
5705 | intel_framebuffer_create_for_mode(struct drm_device *dev, | |
5706 | struct drm_display_mode *mode, | |
5707 | int depth, int bpp) | |
5708 | { | |
5709 | struct drm_i915_gem_object *obj; | |
308e5bcb | 5710 | struct drm_mode_fb_cmd2 mode_cmd; |
d2dff872 CW |
5711 | |
5712 | obj = i915_gem_alloc_object(dev, | |
5713 | intel_framebuffer_size_for_mode(mode, bpp)); | |
5714 | if (obj == NULL) | |
5715 | return ERR_PTR(-ENOMEM); | |
5716 | ||
5717 | mode_cmd.width = mode->hdisplay; | |
5718 | mode_cmd.height = mode->vdisplay; | |
308e5bcb JB |
5719 | mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width, |
5720 | bpp); | |
5ca0c34a | 5721 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); |
d2dff872 CW |
5722 | |
5723 | return intel_framebuffer_create(dev, &mode_cmd, obj); | |
5724 | } | |
5725 | ||
5726 | static struct drm_framebuffer * | |
5727 | mode_fits_in_fbdev(struct drm_device *dev, | |
5728 | struct drm_display_mode *mode) | |
5729 | { | |
5730 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5731 | struct drm_i915_gem_object *obj; | |
5732 | struct drm_framebuffer *fb; | |
5733 | ||
5734 | if (dev_priv->fbdev == NULL) | |
5735 | return NULL; | |
5736 | ||
5737 | obj = dev_priv->fbdev->ifb.obj; | |
5738 | if (obj == NULL) | |
5739 | return NULL; | |
5740 | ||
5741 | fb = &dev_priv->fbdev->ifb.base; | |
01f2c773 VS |
5742 | if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay, |
5743 | fb->bits_per_pixel)) | |
d2dff872 CW |
5744 | return NULL; |
5745 | ||
01f2c773 | 5746 | if (obj->base.size < mode->vdisplay * fb->pitches[0]) |
d2dff872 CW |
5747 | return NULL; |
5748 | ||
5749 | return fb; | |
5750 | } | |
5751 | ||
d2434ab7 | 5752 | bool intel_get_load_detect_pipe(struct drm_connector *connector, |
7173188d | 5753 | struct drm_display_mode *mode, |
8261b191 | 5754 | struct intel_load_detect_pipe *old) |
79e53945 JB |
5755 | { |
5756 | struct intel_crtc *intel_crtc; | |
d2434ab7 DV |
5757 | struct intel_encoder *intel_encoder = |
5758 | intel_attached_encoder(connector); | |
79e53945 | 5759 | struct drm_crtc *possible_crtc; |
4ef69c7a | 5760 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 JB |
5761 | struct drm_crtc *crtc = NULL; |
5762 | struct drm_device *dev = encoder->dev; | |
94352cf9 | 5763 | struct drm_framebuffer *fb; |
79e53945 JB |
5764 | int i = -1; |
5765 | ||
d2dff872 CW |
5766 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
5767 | connector->base.id, drm_get_connector_name(connector), | |
5768 | encoder->base.id, drm_get_encoder_name(encoder)); | |
5769 | ||
79e53945 JB |
5770 | /* |
5771 | * Algorithm gets a little messy: | |
7a5e4805 | 5772 | * |
79e53945 JB |
5773 | * - if the connector already has an assigned crtc, use it (but make |
5774 | * sure it's on first) | |
7a5e4805 | 5775 | * |
79e53945 JB |
5776 | * - try to find the first unused crtc that can drive this connector, |
5777 | * and use that if we find one | |
79e53945 JB |
5778 | */ |
5779 | ||
5780 | /* See if we already have a CRTC for this connector */ | |
5781 | if (encoder->crtc) { | |
5782 | crtc = encoder->crtc; | |
8261b191 | 5783 | |
24218aac | 5784 | old->dpms_mode = connector->dpms; |
8261b191 CW |
5785 | old->load_detect_temp = false; |
5786 | ||
5787 | /* Make sure the crtc and connector are running */ | |
24218aac DV |
5788 | if (connector->dpms != DRM_MODE_DPMS_ON) |
5789 | connector->funcs->dpms(connector, DRM_MODE_DPMS_ON); | |
8261b191 | 5790 | |
7173188d | 5791 | return true; |
79e53945 JB |
5792 | } |
5793 | ||
5794 | /* Find an unused one (if possible) */ | |
5795 | list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) { | |
5796 | i++; | |
5797 | if (!(encoder->possible_crtcs & (1 << i))) | |
5798 | continue; | |
5799 | if (!possible_crtc->enabled) { | |
5800 | crtc = possible_crtc; | |
5801 | break; | |
5802 | } | |
79e53945 JB |
5803 | } |
5804 | ||
5805 | /* | |
5806 | * If we didn't find an unused CRTC, don't use any. | |
5807 | */ | |
5808 | if (!crtc) { | |
7173188d CW |
5809 | DRM_DEBUG_KMS("no pipe available for load-detect\n"); |
5810 | return false; | |
79e53945 JB |
5811 | } |
5812 | ||
fc303101 DV |
5813 | intel_encoder->new_crtc = to_intel_crtc(crtc); |
5814 | to_intel_connector(connector)->new_encoder = intel_encoder; | |
79e53945 JB |
5815 | |
5816 | intel_crtc = to_intel_crtc(crtc); | |
24218aac | 5817 | old->dpms_mode = connector->dpms; |
8261b191 | 5818 | old->load_detect_temp = true; |
d2dff872 | 5819 | old->release_fb = NULL; |
79e53945 | 5820 | |
6492711d CW |
5821 | if (!mode) |
5822 | mode = &load_detect_mode; | |
79e53945 | 5823 | |
d2dff872 CW |
5824 | /* We need a framebuffer large enough to accommodate all accesses |
5825 | * that the plane may generate whilst we perform load detection. | |
5826 | * We can not rely on the fbcon either being present (we get called | |
5827 | * during its initialisation to detect all boot displays, or it may | |
5828 | * not even exist) or that it is large enough to satisfy the | |
5829 | * requested mode. | |
5830 | */ | |
94352cf9 DV |
5831 | fb = mode_fits_in_fbdev(dev, mode); |
5832 | if (fb == NULL) { | |
d2dff872 | 5833 | DRM_DEBUG_KMS("creating tmp fb for load-detection\n"); |
94352cf9 DV |
5834 | fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32); |
5835 | old->release_fb = fb; | |
d2dff872 CW |
5836 | } else |
5837 | DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n"); | |
94352cf9 | 5838 | if (IS_ERR(fb)) { |
d2dff872 | 5839 | DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n"); |
24218aac | 5840 | goto fail; |
79e53945 | 5841 | } |
79e53945 | 5842 | |
94352cf9 | 5843 | if (!intel_set_mode(crtc, mode, 0, 0, fb)) { |
6492711d | 5844 | DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n"); |
d2dff872 CW |
5845 | if (old->release_fb) |
5846 | old->release_fb->funcs->destroy(old->release_fb); | |
24218aac | 5847 | goto fail; |
79e53945 | 5848 | } |
7173188d | 5849 | |
79e53945 | 5850 | /* let the connector get through one full cycle before testing */ |
9d0498a2 | 5851 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
79e53945 | 5852 | |
7173188d | 5853 | return true; |
24218aac DV |
5854 | fail: |
5855 | connector->encoder = NULL; | |
5856 | encoder->crtc = NULL; | |
24218aac | 5857 | return false; |
79e53945 JB |
5858 | } |
5859 | ||
d2434ab7 | 5860 | void intel_release_load_detect_pipe(struct drm_connector *connector, |
8261b191 | 5861 | struct intel_load_detect_pipe *old) |
79e53945 | 5862 | { |
d2434ab7 DV |
5863 | struct intel_encoder *intel_encoder = |
5864 | intel_attached_encoder(connector); | |
4ef69c7a | 5865 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 | 5866 | |
d2dff872 CW |
5867 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
5868 | connector->base.id, drm_get_connector_name(connector), | |
5869 | encoder->base.id, drm_get_encoder_name(encoder)); | |
5870 | ||
8261b191 | 5871 | if (old->load_detect_temp) { |
fc303101 DV |
5872 | struct drm_crtc *crtc = encoder->crtc; |
5873 | ||
5874 | to_intel_connector(connector)->new_encoder = NULL; | |
5875 | intel_encoder->new_crtc = NULL; | |
5876 | intel_set_mode(crtc, NULL, 0, 0, NULL); | |
d2dff872 CW |
5877 | |
5878 | if (old->release_fb) | |
5879 | old->release_fb->funcs->destroy(old->release_fb); | |
5880 | ||
0622a53c | 5881 | return; |
79e53945 JB |
5882 | } |
5883 | ||
c751ce4f | 5884 | /* Switch crtc and encoder back off if necessary */ |
24218aac DV |
5885 | if (old->dpms_mode != DRM_MODE_DPMS_ON) |
5886 | connector->funcs->dpms(connector, old->dpms_mode); | |
79e53945 JB |
5887 | } |
5888 | ||
5889 | /* Returns the clock of the currently programmed mode of the given pipe. */ | |
5890 | static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc) | |
5891 | { | |
5892 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5893 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5894 | int pipe = intel_crtc->pipe; | |
548f245b | 5895 | u32 dpll = I915_READ(DPLL(pipe)); |
79e53945 JB |
5896 | u32 fp; |
5897 | intel_clock_t clock; | |
5898 | ||
5899 | if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) | |
39adb7a5 | 5900 | fp = I915_READ(FP0(pipe)); |
79e53945 | 5901 | else |
39adb7a5 | 5902 | fp = I915_READ(FP1(pipe)); |
79e53945 JB |
5903 | |
5904 | clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; | |
f2b115e6 AJ |
5905 | if (IS_PINEVIEW(dev)) { |
5906 | clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; | |
5907 | clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
2177832f SL |
5908 | } else { |
5909 | clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; | |
5910 | clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
5911 | } | |
5912 | ||
a6c45cf0 | 5913 | if (!IS_GEN2(dev)) { |
f2b115e6 AJ |
5914 | if (IS_PINEVIEW(dev)) |
5915 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >> | |
5916 | DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW); | |
2177832f SL |
5917 | else |
5918 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> | |
79e53945 JB |
5919 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
5920 | ||
5921 | switch (dpll & DPLL_MODE_MASK) { | |
5922 | case DPLLB_MODE_DAC_SERIAL: | |
5923 | clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? | |
5924 | 5 : 10; | |
5925 | break; | |
5926 | case DPLLB_MODE_LVDS: | |
5927 | clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? | |
5928 | 7 : 14; | |
5929 | break; | |
5930 | default: | |
28c97730 | 5931 | DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed " |
79e53945 JB |
5932 | "mode\n", (int)(dpll & DPLL_MODE_MASK)); |
5933 | return 0; | |
5934 | } | |
5935 | ||
5936 | /* XXX: Handle the 100Mhz refclk */ | |
2177832f | 5937 | intel_clock(dev, 96000, &clock); |
79e53945 JB |
5938 | } else { |
5939 | bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN); | |
5940 | ||
5941 | if (is_lvds) { | |
5942 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> | |
5943 | DPLL_FPA01_P1_POST_DIV_SHIFT); | |
5944 | clock.p2 = 14; | |
5945 | ||
5946 | if ((dpll & PLL_REF_INPUT_MASK) == | |
5947 | PLLB_REF_INPUT_SPREADSPECTRUMIN) { | |
5948 | /* XXX: might not be 66MHz */ | |
2177832f | 5949 | intel_clock(dev, 66000, &clock); |
79e53945 | 5950 | } else |
2177832f | 5951 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
5952 | } else { |
5953 | if (dpll & PLL_P1_DIVIDE_BY_TWO) | |
5954 | clock.p1 = 2; | |
5955 | else { | |
5956 | clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> | |
5957 | DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; | |
5958 | } | |
5959 | if (dpll & PLL_P2_DIVIDE_BY_4) | |
5960 | clock.p2 = 4; | |
5961 | else | |
5962 | clock.p2 = 2; | |
5963 | ||
2177832f | 5964 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
5965 | } |
5966 | } | |
5967 | ||
5968 | /* XXX: It would be nice to validate the clocks, but we can't reuse | |
5969 | * i830PllIsValid() because it relies on the xf86_config connector | |
5970 | * configuration being accurate, which it isn't necessarily. | |
5971 | */ | |
5972 | ||
5973 | return clock.dot; | |
5974 | } | |
5975 | ||
5976 | /** Returns the currently programmed mode of the given pipe. */ | |
5977 | struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, | |
5978 | struct drm_crtc *crtc) | |
5979 | { | |
548f245b | 5980 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 JB |
5981 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5982 | int pipe = intel_crtc->pipe; | |
5983 | struct drm_display_mode *mode; | |
548f245b JB |
5984 | int htot = I915_READ(HTOTAL(pipe)); |
5985 | int hsync = I915_READ(HSYNC(pipe)); | |
5986 | int vtot = I915_READ(VTOTAL(pipe)); | |
5987 | int vsync = I915_READ(VSYNC(pipe)); | |
79e53945 JB |
5988 | |
5989 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); | |
5990 | if (!mode) | |
5991 | return NULL; | |
5992 | ||
5993 | mode->clock = intel_crtc_clock_get(dev, crtc); | |
5994 | mode->hdisplay = (htot & 0xffff) + 1; | |
5995 | mode->htotal = ((htot & 0xffff0000) >> 16) + 1; | |
5996 | mode->hsync_start = (hsync & 0xffff) + 1; | |
5997 | mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; | |
5998 | mode->vdisplay = (vtot & 0xffff) + 1; | |
5999 | mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; | |
6000 | mode->vsync_start = (vsync & 0xffff) + 1; | |
6001 | mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; | |
6002 | ||
6003 | drm_mode_set_name(mode); | |
79e53945 JB |
6004 | |
6005 | return mode; | |
6006 | } | |
6007 | ||
3dec0095 | 6008 | static void intel_increase_pllclock(struct drm_crtc *crtc) |
652c393a JB |
6009 | { |
6010 | struct drm_device *dev = crtc->dev; | |
6011 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6012 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6013 | int pipe = intel_crtc->pipe; | |
dbdc6479 JB |
6014 | int dpll_reg = DPLL(pipe); |
6015 | int dpll; | |
652c393a | 6016 | |
bad720ff | 6017 | if (HAS_PCH_SPLIT(dev)) |
652c393a JB |
6018 | return; |
6019 | ||
6020 | if (!dev_priv->lvds_downclock_avail) | |
6021 | return; | |
6022 | ||
dbdc6479 | 6023 | dpll = I915_READ(dpll_reg); |
652c393a | 6024 | if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) { |
44d98a61 | 6025 | DRM_DEBUG_DRIVER("upclocking LVDS\n"); |
652c393a | 6026 | |
8ac5a6d5 | 6027 | assert_panel_unlocked(dev_priv, pipe); |
652c393a JB |
6028 | |
6029 | dpll &= ~DISPLAY_RATE_SELECT_FPA1; | |
6030 | I915_WRITE(dpll_reg, dpll); | |
9d0498a2 | 6031 | intel_wait_for_vblank(dev, pipe); |
dbdc6479 | 6032 | |
652c393a JB |
6033 | dpll = I915_READ(dpll_reg); |
6034 | if (dpll & DISPLAY_RATE_SELECT_FPA1) | |
44d98a61 | 6035 | DRM_DEBUG_DRIVER("failed to upclock LVDS!\n"); |
652c393a | 6036 | } |
652c393a JB |
6037 | } |
6038 | ||
6039 | static void intel_decrease_pllclock(struct drm_crtc *crtc) | |
6040 | { | |
6041 | struct drm_device *dev = crtc->dev; | |
6042 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6043 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
652c393a | 6044 | |
bad720ff | 6045 | if (HAS_PCH_SPLIT(dev)) |
652c393a JB |
6046 | return; |
6047 | ||
6048 | if (!dev_priv->lvds_downclock_avail) | |
6049 | return; | |
6050 | ||
6051 | /* | |
6052 | * Since this is called by a timer, we should never get here in | |
6053 | * the manual case. | |
6054 | */ | |
6055 | if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) { | |
dc257cf1 DV |
6056 | int pipe = intel_crtc->pipe; |
6057 | int dpll_reg = DPLL(pipe); | |
6058 | int dpll; | |
f6e5b160 | 6059 | |
44d98a61 | 6060 | DRM_DEBUG_DRIVER("downclocking LVDS\n"); |
652c393a | 6061 | |
8ac5a6d5 | 6062 | assert_panel_unlocked(dev_priv, pipe); |
652c393a | 6063 | |
dc257cf1 | 6064 | dpll = I915_READ(dpll_reg); |
652c393a JB |
6065 | dpll |= DISPLAY_RATE_SELECT_FPA1; |
6066 | I915_WRITE(dpll_reg, dpll); | |
9d0498a2 | 6067 | intel_wait_for_vblank(dev, pipe); |
652c393a JB |
6068 | dpll = I915_READ(dpll_reg); |
6069 | if (!(dpll & DISPLAY_RATE_SELECT_FPA1)) | |
44d98a61 | 6070 | DRM_DEBUG_DRIVER("failed to downclock LVDS!\n"); |
652c393a JB |
6071 | } |
6072 | ||
6073 | } | |
6074 | ||
f047e395 CW |
6075 | void intel_mark_busy(struct drm_device *dev) |
6076 | { | |
f047e395 CW |
6077 | i915_update_gfx_val(dev->dev_private); |
6078 | } | |
6079 | ||
6080 | void intel_mark_idle(struct drm_device *dev) | |
652c393a | 6081 | { |
f047e395 CW |
6082 | } |
6083 | ||
6084 | void intel_mark_fb_busy(struct drm_i915_gem_object *obj) | |
6085 | { | |
6086 | struct drm_device *dev = obj->base.dev; | |
652c393a | 6087 | struct drm_crtc *crtc; |
652c393a JB |
6088 | |
6089 | if (!i915_powersave) | |
6090 | return; | |
6091 | ||
652c393a | 6092 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
652c393a JB |
6093 | if (!crtc->fb) |
6094 | continue; | |
6095 | ||
f047e395 CW |
6096 | if (to_intel_framebuffer(crtc->fb)->obj == obj) |
6097 | intel_increase_pllclock(crtc); | |
652c393a | 6098 | } |
652c393a JB |
6099 | } |
6100 | ||
f047e395 | 6101 | void intel_mark_fb_idle(struct drm_i915_gem_object *obj) |
652c393a | 6102 | { |
f047e395 CW |
6103 | struct drm_device *dev = obj->base.dev; |
6104 | struct drm_crtc *crtc; | |
652c393a | 6105 | |
f047e395 | 6106 | if (!i915_powersave) |
acb87dfb CW |
6107 | return; |
6108 | ||
652c393a JB |
6109 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
6110 | if (!crtc->fb) | |
6111 | continue; | |
6112 | ||
f047e395 CW |
6113 | if (to_intel_framebuffer(crtc->fb)->obj == obj) |
6114 | intel_decrease_pllclock(crtc); | |
652c393a JB |
6115 | } |
6116 | } | |
6117 | ||
79e53945 JB |
6118 | static void intel_crtc_destroy(struct drm_crtc *crtc) |
6119 | { | |
6120 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
67e77c5a DV |
6121 | struct drm_device *dev = crtc->dev; |
6122 | struct intel_unpin_work *work; | |
6123 | unsigned long flags; | |
6124 | ||
6125 | spin_lock_irqsave(&dev->event_lock, flags); | |
6126 | work = intel_crtc->unpin_work; | |
6127 | intel_crtc->unpin_work = NULL; | |
6128 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6129 | ||
6130 | if (work) { | |
6131 | cancel_work_sync(&work->work); | |
6132 | kfree(work); | |
6133 | } | |
79e53945 JB |
6134 | |
6135 | drm_crtc_cleanup(crtc); | |
67e77c5a | 6136 | |
79e53945 JB |
6137 | kfree(intel_crtc); |
6138 | } | |
6139 | ||
6b95a207 KH |
6140 | static void intel_unpin_work_fn(struct work_struct *__work) |
6141 | { | |
6142 | struct intel_unpin_work *work = | |
6143 | container_of(__work, struct intel_unpin_work, work); | |
6144 | ||
6145 | mutex_lock(&work->dev->struct_mutex); | |
1690e1eb | 6146 | intel_unpin_fb_obj(work->old_fb_obj); |
05394f39 CW |
6147 | drm_gem_object_unreference(&work->pending_flip_obj->base); |
6148 | drm_gem_object_unreference(&work->old_fb_obj->base); | |
d9e86c0e | 6149 | |
7782de3b | 6150 | intel_update_fbc(work->dev); |
6b95a207 KH |
6151 | mutex_unlock(&work->dev->struct_mutex); |
6152 | kfree(work); | |
6153 | } | |
6154 | ||
1afe3e9d | 6155 | static void do_intel_finish_page_flip(struct drm_device *dev, |
49b14a5c | 6156 | struct drm_crtc *crtc) |
6b95a207 KH |
6157 | { |
6158 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6b95a207 KH |
6159 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6160 | struct intel_unpin_work *work; | |
05394f39 | 6161 | struct drm_i915_gem_object *obj; |
6b95a207 | 6162 | struct drm_pending_vblank_event *e; |
49b14a5c | 6163 | struct timeval tnow, tvbl; |
6b95a207 KH |
6164 | unsigned long flags; |
6165 | ||
6166 | /* Ignore early vblank irqs */ | |
6167 | if (intel_crtc == NULL) | |
6168 | return; | |
6169 | ||
49b14a5c MK |
6170 | do_gettimeofday(&tnow); |
6171 | ||
6b95a207 KH |
6172 | spin_lock_irqsave(&dev->event_lock, flags); |
6173 | work = intel_crtc->unpin_work; | |
6174 | if (work == NULL || !work->pending) { | |
6175 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6176 | return; | |
6177 | } | |
6178 | ||
6179 | intel_crtc->unpin_work = NULL; | |
6b95a207 KH |
6180 | |
6181 | if (work->event) { | |
6182 | e = work->event; | |
49b14a5c | 6183 | e->event.sequence = drm_vblank_count_and_time(dev, intel_crtc->pipe, &tvbl); |
0af7e4df MK |
6184 | |
6185 | /* Called before vblank count and timestamps have | |
6186 | * been updated for the vblank interval of flip | |
6187 | * completion? Need to increment vblank count and | |
6188 | * add one videorefresh duration to returned timestamp | |
49b14a5c MK |
6189 | * to account for this. We assume this happened if we |
6190 | * get called over 0.9 frame durations after the last | |
6191 | * timestamped vblank. | |
6192 | * | |
6193 | * This calculation can not be used with vrefresh rates | |
6194 | * below 5Hz (10Hz to be on the safe side) without | |
6195 | * promoting to 64 integers. | |
0af7e4df | 6196 | */ |
49b14a5c MK |
6197 | if (10 * (timeval_to_ns(&tnow) - timeval_to_ns(&tvbl)) > |
6198 | 9 * crtc->framedur_ns) { | |
0af7e4df | 6199 | e->event.sequence++; |
49b14a5c MK |
6200 | tvbl = ns_to_timeval(timeval_to_ns(&tvbl) + |
6201 | crtc->framedur_ns); | |
0af7e4df MK |
6202 | } |
6203 | ||
49b14a5c MK |
6204 | e->event.tv_sec = tvbl.tv_sec; |
6205 | e->event.tv_usec = tvbl.tv_usec; | |
0af7e4df | 6206 | |
6b95a207 KH |
6207 | list_add_tail(&e->base.link, |
6208 | &e->base.file_priv->event_list); | |
6209 | wake_up_interruptible(&e->base.file_priv->event_wait); | |
6210 | } | |
6211 | ||
0af7e4df MK |
6212 | drm_vblank_put(dev, intel_crtc->pipe); |
6213 | ||
6b95a207 KH |
6214 | spin_unlock_irqrestore(&dev->event_lock, flags); |
6215 | ||
05394f39 | 6216 | obj = work->old_fb_obj; |
d9e86c0e | 6217 | |
e59f2bac | 6218 | atomic_clear_mask(1 << intel_crtc->plane, |
05394f39 CW |
6219 | &obj->pending_flip.counter); |
6220 | if (atomic_read(&obj->pending_flip) == 0) | |
f787a5f5 | 6221 | wake_up(&dev_priv->pending_flip_queue); |
d9e86c0e | 6222 | |
6b95a207 | 6223 | schedule_work(&work->work); |
e5510fac JB |
6224 | |
6225 | trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj); | |
6b95a207 KH |
6226 | } |
6227 | ||
1afe3e9d JB |
6228 | void intel_finish_page_flip(struct drm_device *dev, int pipe) |
6229 | { | |
6230 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6231 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
6232 | ||
49b14a5c | 6233 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
6234 | } |
6235 | ||
6236 | void intel_finish_page_flip_plane(struct drm_device *dev, int plane) | |
6237 | { | |
6238 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6239 | struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane]; | |
6240 | ||
49b14a5c | 6241 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
6242 | } |
6243 | ||
6b95a207 KH |
6244 | void intel_prepare_page_flip(struct drm_device *dev, int plane) |
6245 | { | |
6246 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6247 | struct intel_crtc *intel_crtc = | |
6248 | to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]); | |
6249 | unsigned long flags; | |
6250 | ||
6251 | spin_lock_irqsave(&dev->event_lock, flags); | |
de3f440f | 6252 | if (intel_crtc->unpin_work) { |
4e5359cd SF |
6253 | if ((++intel_crtc->unpin_work->pending) > 1) |
6254 | DRM_ERROR("Prepared flip multiple times\n"); | |
de3f440f JB |
6255 | } else { |
6256 | DRM_DEBUG_DRIVER("preparing flip with no unpin work?\n"); | |
6257 | } | |
6b95a207 KH |
6258 | spin_unlock_irqrestore(&dev->event_lock, flags); |
6259 | } | |
6260 | ||
8c9f3aaf JB |
6261 | static int intel_gen2_queue_flip(struct drm_device *dev, |
6262 | struct drm_crtc *crtc, | |
6263 | struct drm_framebuffer *fb, | |
6264 | struct drm_i915_gem_object *obj) | |
6265 | { | |
6266 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6267 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
8c9f3aaf | 6268 | u32 flip_mask; |
6d90c952 | 6269 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
6270 | int ret; |
6271 | ||
6d90c952 | 6272 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 6273 | if (ret) |
83d4092b | 6274 | goto err; |
8c9f3aaf | 6275 | |
6d90c952 | 6276 | ret = intel_ring_begin(ring, 6); |
8c9f3aaf | 6277 | if (ret) |
83d4092b | 6278 | goto err_unpin; |
8c9f3aaf JB |
6279 | |
6280 | /* Can't queue multiple flips, so wait for the previous | |
6281 | * one to finish before executing the next. | |
6282 | */ | |
6283 | if (intel_crtc->plane) | |
6284 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
6285 | else | |
6286 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
6287 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
6288 | intel_ring_emit(ring, MI_NOOP); | |
6289 | intel_ring_emit(ring, MI_DISPLAY_FLIP | | |
6290 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
6291 | intel_ring_emit(ring, fb->pitches[0]); | |
e506a0c6 | 6292 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
6d90c952 DV |
6293 | intel_ring_emit(ring, 0); /* aux display base address, unused */ |
6294 | intel_ring_advance(ring); | |
83d4092b CW |
6295 | return 0; |
6296 | ||
6297 | err_unpin: | |
6298 | intel_unpin_fb_obj(obj); | |
6299 | err: | |
8c9f3aaf JB |
6300 | return ret; |
6301 | } | |
6302 | ||
6303 | static int intel_gen3_queue_flip(struct drm_device *dev, | |
6304 | struct drm_crtc *crtc, | |
6305 | struct drm_framebuffer *fb, | |
6306 | struct drm_i915_gem_object *obj) | |
6307 | { | |
6308 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6309 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
8c9f3aaf | 6310 | u32 flip_mask; |
6d90c952 | 6311 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
6312 | int ret; |
6313 | ||
6d90c952 | 6314 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 6315 | if (ret) |
83d4092b | 6316 | goto err; |
8c9f3aaf | 6317 | |
6d90c952 | 6318 | ret = intel_ring_begin(ring, 6); |
8c9f3aaf | 6319 | if (ret) |
83d4092b | 6320 | goto err_unpin; |
8c9f3aaf JB |
6321 | |
6322 | if (intel_crtc->plane) | |
6323 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
6324 | else | |
6325 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
6326 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
6327 | intel_ring_emit(ring, MI_NOOP); | |
6328 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | | |
6329 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
6330 | intel_ring_emit(ring, fb->pitches[0]); | |
e506a0c6 | 6331 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
6d90c952 DV |
6332 | intel_ring_emit(ring, MI_NOOP); |
6333 | ||
6334 | intel_ring_advance(ring); | |
83d4092b CW |
6335 | return 0; |
6336 | ||
6337 | err_unpin: | |
6338 | intel_unpin_fb_obj(obj); | |
6339 | err: | |
8c9f3aaf JB |
6340 | return ret; |
6341 | } | |
6342 | ||
6343 | static int intel_gen4_queue_flip(struct drm_device *dev, | |
6344 | struct drm_crtc *crtc, | |
6345 | struct drm_framebuffer *fb, | |
6346 | struct drm_i915_gem_object *obj) | |
6347 | { | |
6348 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6349 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6350 | uint32_t pf, pipesrc; | |
6d90c952 | 6351 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
6352 | int ret; |
6353 | ||
6d90c952 | 6354 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 6355 | if (ret) |
83d4092b | 6356 | goto err; |
8c9f3aaf | 6357 | |
6d90c952 | 6358 | ret = intel_ring_begin(ring, 4); |
8c9f3aaf | 6359 | if (ret) |
83d4092b | 6360 | goto err_unpin; |
8c9f3aaf JB |
6361 | |
6362 | /* i965+ uses the linear or tiled offsets from the | |
6363 | * Display Registers (which do not change across a page-flip) | |
6364 | * so we need only reprogram the base address. | |
6365 | */ | |
6d90c952 DV |
6366 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
6367 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
6368 | intel_ring_emit(ring, fb->pitches[0]); | |
c2c75131 DV |
6369 | intel_ring_emit(ring, |
6370 | (obj->gtt_offset + intel_crtc->dspaddr_offset) | | |
6371 | obj->tiling_mode); | |
8c9f3aaf JB |
6372 | |
6373 | /* XXX Enabling the panel-fitter across page-flip is so far | |
6374 | * untested on non-native modes, so ignore it for now. | |
6375 | * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE; | |
6376 | */ | |
6377 | pf = 0; | |
6378 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; | |
6d90c952 DV |
6379 | intel_ring_emit(ring, pf | pipesrc); |
6380 | intel_ring_advance(ring); | |
83d4092b CW |
6381 | return 0; |
6382 | ||
6383 | err_unpin: | |
6384 | intel_unpin_fb_obj(obj); | |
6385 | err: | |
8c9f3aaf JB |
6386 | return ret; |
6387 | } | |
6388 | ||
6389 | static int intel_gen6_queue_flip(struct drm_device *dev, | |
6390 | struct drm_crtc *crtc, | |
6391 | struct drm_framebuffer *fb, | |
6392 | struct drm_i915_gem_object *obj) | |
6393 | { | |
6394 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6395 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6d90c952 | 6396 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
6397 | uint32_t pf, pipesrc; |
6398 | int ret; | |
6399 | ||
6d90c952 | 6400 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 6401 | if (ret) |
83d4092b | 6402 | goto err; |
8c9f3aaf | 6403 | |
6d90c952 | 6404 | ret = intel_ring_begin(ring, 4); |
8c9f3aaf | 6405 | if (ret) |
83d4092b | 6406 | goto err_unpin; |
8c9f3aaf | 6407 | |
6d90c952 DV |
6408 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
6409 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
6410 | intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode); | |
c2c75131 | 6411 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
8c9f3aaf | 6412 | |
dc257cf1 DV |
6413 | /* Contrary to the suggestions in the documentation, |
6414 | * "Enable Panel Fitter" does not seem to be required when page | |
6415 | * flipping with a non-native mode, and worse causes a normal | |
6416 | * modeset to fail. | |
6417 | * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE; | |
6418 | */ | |
6419 | pf = 0; | |
8c9f3aaf | 6420 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; |
6d90c952 DV |
6421 | intel_ring_emit(ring, pf | pipesrc); |
6422 | intel_ring_advance(ring); | |
83d4092b CW |
6423 | return 0; |
6424 | ||
6425 | err_unpin: | |
6426 | intel_unpin_fb_obj(obj); | |
6427 | err: | |
8c9f3aaf JB |
6428 | return ret; |
6429 | } | |
6430 | ||
7c9017e5 JB |
6431 | /* |
6432 | * On gen7 we currently use the blit ring because (in early silicon at least) | |
6433 | * the render ring doesn't give us interrpts for page flip completion, which | |
6434 | * means clients will hang after the first flip is queued. Fortunately the | |
6435 | * blit ring generates interrupts properly, so use it instead. | |
6436 | */ | |
6437 | static int intel_gen7_queue_flip(struct drm_device *dev, | |
6438 | struct drm_crtc *crtc, | |
6439 | struct drm_framebuffer *fb, | |
6440 | struct drm_i915_gem_object *obj) | |
6441 | { | |
6442 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6443 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6444 | struct intel_ring_buffer *ring = &dev_priv->ring[BCS]; | |
cb05d8de | 6445 | uint32_t plane_bit = 0; |
7c9017e5 JB |
6446 | int ret; |
6447 | ||
6448 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); | |
6449 | if (ret) | |
83d4092b | 6450 | goto err; |
7c9017e5 | 6451 | |
cb05d8de DV |
6452 | switch(intel_crtc->plane) { |
6453 | case PLANE_A: | |
6454 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A; | |
6455 | break; | |
6456 | case PLANE_B: | |
6457 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B; | |
6458 | break; | |
6459 | case PLANE_C: | |
6460 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C; | |
6461 | break; | |
6462 | default: | |
6463 | WARN_ONCE(1, "unknown plane in flip command\n"); | |
6464 | ret = -ENODEV; | |
ab3951eb | 6465 | goto err_unpin; |
cb05d8de DV |
6466 | } |
6467 | ||
7c9017e5 JB |
6468 | ret = intel_ring_begin(ring, 4); |
6469 | if (ret) | |
83d4092b | 6470 | goto err_unpin; |
7c9017e5 | 6471 | |
cb05d8de | 6472 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit); |
01f2c773 | 6473 | intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode)); |
c2c75131 | 6474 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
7c9017e5 JB |
6475 | intel_ring_emit(ring, (MI_NOOP)); |
6476 | intel_ring_advance(ring); | |
83d4092b CW |
6477 | return 0; |
6478 | ||
6479 | err_unpin: | |
6480 | intel_unpin_fb_obj(obj); | |
6481 | err: | |
7c9017e5 JB |
6482 | return ret; |
6483 | } | |
6484 | ||
8c9f3aaf JB |
6485 | static int intel_default_queue_flip(struct drm_device *dev, |
6486 | struct drm_crtc *crtc, | |
6487 | struct drm_framebuffer *fb, | |
6488 | struct drm_i915_gem_object *obj) | |
6489 | { | |
6490 | return -ENODEV; | |
6491 | } | |
6492 | ||
6b95a207 KH |
6493 | static int intel_crtc_page_flip(struct drm_crtc *crtc, |
6494 | struct drm_framebuffer *fb, | |
6495 | struct drm_pending_vblank_event *event) | |
6496 | { | |
6497 | struct drm_device *dev = crtc->dev; | |
6498 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6499 | struct intel_framebuffer *intel_fb; | |
05394f39 | 6500 | struct drm_i915_gem_object *obj; |
6b95a207 KH |
6501 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6502 | struct intel_unpin_work *work; | |
8c9f3aaf | 6503 | unsigned long flags; |
52e68630 | 6504 | int ret; |
6b95a207 | 6505 | |
e6a595d2 VS |
6506 | /* Can't change pixel format via MI display flips. */ |
6507 | if (fb->pixel_format != crtc->fb->pixel_format) | |
6508 | return -EINVAL; | |
6509 | ||
6510 | /* | |
6511 | * TILEOFF/LINOFF registers can't be changed via MI display flips. | |
6512 | * Note that pitch changes could also affect these register. | |
6513 | */ | |
6514 | if (INTEL_INFO(dev)->gen > 3 && | |
6515 | (fb->offsets[0] != crtc->fb->offsets[0] || | |
6516 | fb->pitches[0] != crtc->fb->pitches[0])) | |
6517 | return -EINVAL; | |
6518 | ||
6b95a207 KH |
6519 | work = kzalloc(sizeof *work, GFP_KERNEL); |
6520 | if (work == NULL) | |
6521 | return -ENOMEM; | |
6522 | ||
6b95a207 KH |
6523 | work->event = event; |
6524 | work->dev = crtc->dev; | |
6525 | intel_fb = to_intel_framebuffer(crtc->fb); | |
b1b87f6b | 6526 | work->old_fb_obj = intel_fb->obj; |
6b95a207 KH |
6527 | INIT_WORK(&work->work, intel_unpin_work_fn); |
6528 | ||
7317c75e JB |
6529 | ret = drm_vblank_get(dev, intel_crtc->pipe); |
6530 | if (ret) | |
6531 | goto free_work; | |
6532 | ||
6b95a207 KH |
6533 | /* We borrow the event spin lock for protecting unpin_work */ |
6534 | spin_lock_irqsave(&dev->event_lock, flags); | |
6535 | if (intel_crtc->unpin_work) { | |
6536 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6537 | kfree(work); | |
7317c75e | 6538 | drm_vblank_put(dev, intel_crtc->pipe); |
468f0b44 CW |
6539 | |
6540 | DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); | |
6b95a207 KH |
6541 | return -EBUSY; |
6542 | } | |
6543 | intel_crtc->unpin_work = work; | |
6544 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6545 | ||
6546 | intel_fb = to_intel_framebuffer(fb); | |
6547 | obj = intel_fb->obj; | |
6548 | ||
79158103 CW |
6549 | ret = i915_mutex_lock_interruptible(dev); |
6550 | if (ret) | |
6551 | goto cleanup; | |
6b95a207 | 6552 | |
75dfca80 | 6553 | /* Reference the objects for the scheduled work. */ |
05394f39 CW |
6554 | drm_gem_object_reference(&work->old_fb_obj->base); |
6555 | drm_gem_object_reference(&obj->base); | |
6b95a207 KH |
6556 | |
6557 | crtc->fb = fb; | |
96b099fd | 6558 | |
e1f99ce6 | 6559 | work->pending_flip_obj = obj; |
e1f99ce6 | 6560 | |
4e5359cd SF |
6561 | work->enable_stall_check = true; |
6562 | ||
e1f99ce6 CW |
6563 | /* Block clients from rendering to the new back buffer until |
6564 | * the flip occurs and the object is no longer visible. | |
6565 | */ | |
05394f39 | 6566 | atomic_add(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); |
e1f99ce6 | 6567 | |
8c9f3aaf JB |
6568 | ret = dev_priv->display.queue_flip(dev, crtc, fb, obj); |
6569 | if (ret) | |
6570 | goto cleanup_pending; | |
6b95a207 | 6571 | |
7782de3b | 6572 | intel_disable_fbc(dev); |
f047e395 | 6573 | intel_mark_fb_busy(obj); |
6b95a207 KH |
6574 | mutex_unlock(&dev->struct_mutex); |
6575 | ||
e5510fac JB |
6576 | trace_i915_flip_request(intel_crtc->plane, obj); |
6577 | ||
6b95a207 | 6578 | return 0; |
96b099fd | 6579 | |
8c9f3aaf JB |
6580 | cleanup_pending: |
6581 | atomic_sub(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); | |
05394f39 CW |
6582 | drm_gem_object_unreference(&work->old_fb_obj->base); |
6583 | drm_gem_object_unreference(&obj->base); | |
96b099fd CW |
6584 | mutex_unlock(&dev->struct_mutex); |
6585 | ||
79158103 | 6586 | cleanup: |
96b099fd CW |
6587 | spin_lock_irqsave(&dev->event_lock, flags); |
6588 | intel_crtc->unpin_work = NULL; | |
6589 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6590 | ||
7317c75e JB |
6591 | drm_vblank_put(dev, intel_crtc->pipe); |
6592 | free_work: | |
96b099fd CW |
6593 | kfree(work); |
6594 | ||
6595 | return ret; | |
6b95a207 KH |
6596 | } |
6597 | ||
f6e5b160 | 6598 | static struct drm_crtc_helper_funcs intel_helper_funcs = { |
f6e5b160 CW |
6599 | .mode_set_base_atomic = intel_pipe_set_base_atomic, |
6600 | .load_lut = intel_crtc_load_lut, | |
976f8a20 | 6601 | .disable = intel_crtc_noop, |
f6e5b160 CW |
6602 | }; |
6603 | ||
6ed0f796 | 6604 | bool intel_encoder_check_is_cloned(struct intel_encoder *encoder) |
47f1c6c9 | 6605 | { |
6ed0f796 DV |
6606 | struct intel_encoder *other_encoder; |
6607 | struct drm_crtc *crtc = &encoder->new_crtc->base; | |
47f1c6c9 | 6608 | |
6ed0f796 DV |
6609 | if (WARN_ON(!crtc)) |
6610 | return false; | |
6611 | ||
6612 | list_for_each_entry(other_encoder, | |
6613 | &crtc->dev->mode_config.encoder_list, | |
6614 | base.head) { | |
6615 | ||
6616 | if (&other_encoder->new_crtc->base != crtc || | |
6617 | encoder == other_encoder) | |
6618 | continue; | |
6619 | else | |
6620 | return true; | |
f47166d2 CW |
6621 | } |
6622 | ||
6ed0f796 DV |
6623 | return false; |
6624 | } | |
47f1c6c9 | 6625 | |
50f56119 DV |
6626 | static bool intel_encoder_crtc_ok(struct drm_encoder *encoder, |
6627 | struct drm_crtc *crtc) | |
6628 | { | |
6629 | struct drm_device *dev; | |
6630 | struct drm_crtc *tmp; | |
6631 | int crtc_mask = 1; | |
47f1c6c9 | 6632 | |
50f56119 | 6633 | WARN(!crtc, "checking null crtc?\n"); |
47f1c6c9 | 6634 | |
50f56119 | 6635 | dev = crtc->dev; |
47f1c6c9 | 6636 | |
50f56119 DV |
6637 | list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) { |
6638 | if (tmp == crtc) | |
6639 | break; | |
6640 | crtc_mask <<= 1; | |
6641 | } | |
47f1c6c9 | 6642 | |
50f56119 DV |
6643 | if (encoder->possible_crtcs & crtc_mask) |
6644 | return true; | |
6645 | return false; | |
47f1c6c9 | 6646 | } |
79e53945 | 6647 | |
9a935856 DV |
6648 | /** |
6649 | * intel_modeset_update_staged_output_state | |
6650 | * | |
6651 | * Updates the staged output configuration state, e.g. after we've read out the | |
6652 | * current hw state. | |
6653 | */ | |
6654 | static void intel_modeset_update_staged_output_state(struct drm_device *dev) | |
f6e5b160 | 6655 | { |
9a935856 DV |
6656 | struct intel_encoder *encoder; |
6657 | struct intel_connector *connector; | |
f6e5b160 | 6658 | |
9a935856 DV |
6659 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
6660 | base.head) { | |
6661 | connector->new_encoder = | |
6662 | to_intel_encoder(connector->base.encoder); | |
6663 | } | |
f6e5b160 | 6664 | |
9a935856 DV |
6665 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
6666 | base.head) { | |
6667 | encoder->new_crtc = | |
6668 | to_intel_crtc(encoder->base.crtc); | |
6669 | } | |
f6e5b160 CW |
6670 | } |
6671 | ||
9a935856 DV |
6672 | /** |
6673 | * intel_modeset_commit_output_state | |
6674 | * | |
6675 | * This function copies the stage display pipe configuration to the real one. | |
6676 | */ | |
6677 | static void intel_modeset_commit_output_state(struct drm_device *dev) | |
6678 | { | |
6679 | struct intel_encoder *encoder; | |
6680 | struct intel_connector *connector; | |
f6e5b160 | 6681 | |
9a935856 DV |
6682 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
6683 | base.head) { | |
6684 | connector->base.encoder = &connector->new_encoder->base; | |
6685 | } | |
f6e5b160 | 6686 | |
9a935856 DV |
6687 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
6688 | base.head) { | |
6689 | encoder->base.crtc = &encoder->new_crtc->base; | |
6690 | } | |
6691 | } | |
6692 | ||
7758a113 DV |
6693 | static struct drm_display_mode * |
6694 | intel_modeset_adjusted_mode(struct drm_crtc *crtc, | |
6695 | struct drm_display_mode *mode) | |
ee7b9f93 | 6696 | { |
7758a113 DV |
6697 | struct drm_device *dev = crtc->dev; |
6698 | struct drm_display_mode *adjusted_mode; | |
6699 | struct drm_encoder_helper_funcs *encoder_funcs; | |
6700 | struct intel_encoder *encoder; | |
ee7b9f93 | 6701 | |
7758a113 DV |
6702 | adjusted_mode = drm_mode_duplicate(dev, mode); |
6703 | if (!adjusted_mode) | |
6704 | return ERR_PTR(-ENOMEM); | |
6705 | ||
6706 | /* Pass our mode to the connectors and the CRTC to give them a chance to | |
6707 | * adjust it according to limitations or connector properties, and also | |
6708 | * a chance to reject the mode entirely. | |
6709 | */ | |
6710 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
6711 | base.head) { | |
6712 | ||
6713 | if (&encoder->new_crtc->base != crtc) | |
6714 | continue; | |
6715 | encoder_funcs = encoder->base.helper_private; | |
6716 | if (!(encoder_funcs->mode_fixup(&encoder->base, mode, | |
6717 | adjusted_mode))) { | |
6718 | DRM_DEBUG_KMS("Encoder fixup failed\n"); | |
6719 | goto fail; | |
6720 | } | |
ee7b9f93 JB |
6721 | } |
6722 | ||
7758a113 DV |
6723 | if (!(intel_crtc_mode_fixup(crtc, mode, adjusted_mode))) { |
6724 | DRM_DEBUG_KMS("CRTC fixup failed\n"); | |
6725 | goto fail; | |
ee7b9f93 | 6726 | } |
7758a113 DV |
6727 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
6728 | ||
6729 | return adjusted_mode; | |
6730 | fail: | |
6731 | drm_mode_destroy(dev, adjusted_mode); | |
6732 | return ERR_PTR(-EINVAL); | |
ee7b9f93 JB |
6733 | } |
6734 | ||
e2e1ed41 DV |
6735 | /* Computes which crtcs are affected and sets the relevant bits in the mask. For |
6736 | * simplicity we use the crtc's pipe number (because it's easier to obtain). */ | |
6737 | static void | |
6738 | intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes, | |
6739 | unsigned *prepare_pipes, unsigned *disable_pipes) | |
79e53945 JB |
6740 | { |
6741 | struct intel_crtc *intel_crtc; | |
e2e1ed41 DV |
6742 | struct drm_device *dev = crtc->dev; |
6743 | struct intel_encoder *encoder; | |
6744 | struct intel_connector *connector; | |
6745 | struct drm_crtc *tmp_crtc; | |
79e53945 | 6746 | |
e2e1ed41 | 6747 | *disable_pipes = *modeset_pipes = *prepare_pipes = 0; |
79e53945 | 6748 | |
e2e1ed41 DV |
6749 | /* Check which crtcs have changed outputs connected to them, these need |
6750 | * to be part of the prepare_pipes mask. We don't (yet) support global | |
6751 | * modeset across multiple crtcs, so modeset_pipes will only have one | |
6752 | * bit set at most. */ | |
6753 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
6754 | base.head) { | |
6755 | if (connector->base.encoder == &connector->new_encoder->base) | |
6756 | continue; | |
79e53945 | 6757 | |
e2e1ed41 DV |
6758 | if (connector->base.encoder) { |
6759 | tmp_crtc = connector->base.encoder->crtc; | |
6760 | ||
6761 | *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe; | |
6762 | } | |
6763 | ||
6764 | if (connector->new_encoder) | |
6765 | *prepare_pipes |= | |
6766 | 1 << connector->new_encoder->new_crtc->pipe; | |
79e53945 JB |
6767 | } |
6768 | ||
e2e1ed41 DV |
6769 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
6770 | base.head) { | |
6771 | if (encoder->base.crtc == &encoder->new_crtc->base) | |
6772 | continue; | |
6773 | ||
6774 | if (encoder->base.crtc) { | |
6775 | tmp_crtc = encoder->base.crtc; | |
6776 | ||
6777 | *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe; | |
6778 | } | |
6779 | ||
6780 | if (encoder->new_crtc) | |
6781 | *prepare_pipes |= 1 << encoder->new_crtc->pipe; | |
80824003 JB |
6782 | } |
6783 | ||
e2e1ed41 DV |
6784 | /* Check for any pipes that will be fully disabled ... */ |
6785 | list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, | |
6786 | base.head) { | |
6787 | bool used = false; | |
22fd0fab | 6788 | |
e2e1ed41 DV |
6789 | /* Don't try to disable disabled crtcs. */ |
6790 | if (!intel_crtc->base.enabled) | |
6791 | continue; | |
7e7d76c3 | 6792 | |
e2e1ed41 DV |
6793 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
6794 | base.head) { | |
6795 | if (encoder->new_crtc == intel_crtc) | |
6796 | used = true; | |
6797 | } | |
6798 | ||
6799 | if (!used) | |
6800 | *disable_pipes |= 1 << intel_crtc->pipe; | |
7e7d76c3 JB |
6801 | } |
6802 | ||
e2e1ed41 DV |
6803 | |
6804 | /* set_mode is also used to update properties on life display pipes. */ | |
6805 | intel_crtc = to_intel_crtc(crtc); | |
6806 | if (crtc->enabled) | |
6807 | *prepare_pipes |= 1 << intel_crtc->pipe; | |
6808 | ||
6809 | /* We only support modeset on one single crtc, hence we need to do that | |
6810 | * only for the passed in crtc iff we change anything else than just | |
6811 | * disable crtcs. | |
6812 | * | |
6813 | * This is actually not true, to be fully compatible with the old crtc | |
6814 | * helper we automatically disable _any_ output (i.e. doesn't need to be | |
6815 | * connected to the crtc we're modesetting on) if it's disconnected. | |
6816 | * Which is a rather nutty api (since changed the output configuration | |
6817 | * without userspace's explicit request can lead to confusion), but | |
6818 | * alas. Hence we currently need to modeset on all pipes we prepare. */ | |
6819 | if (*prepare_pipes) | |
6820 | *modeset_pipes = *prepare_pipes; | |
6821 | ||
6822 | /* ... and mask these out. */ | |
6823 | *modeset_pipes &= ~(*disable_pipes); | |
6824 | *prepare_pipes &= ~(*disable_pipes); | |
6825 | } | |
6826 | ||
ea9d758d DV |
6827 | static bool intel_crtc_in_use(struct drm_crtc *crtc) |
6828 | { | |
6829 | struct drm_encoder *encoder; | |
6830 | struct drm_device *dev = crtc->dev; | |
6831 | ||
6832 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
6833 | if (encoder->crtc == crtc) | |
6834 | return true; | |
6835 | ||
6836 | return false; | |
6837 | } | |
6838 | ||
6839 | static void | |
6840 | intel_modeset_update_state(struct drm_device *dev, unsigned prepare_pipes) | |
6841 | { | |
6842 | struct intel_encoder *intel_encoder; | |
6843 | struct intel_crtc *intel_crtc; | |
6844 | struct drm_connector *connector; | |
6845 | ||
6846 | list_for_each_entry(intel_encoder, &dev->mode_config.encoder_list, | |
6847 | base.head) { | |
6848 | if (!intel_encoder->base.crtc) | |
6849 | continue; | |
6850 | ||
6851 | intel_crtc = to_intel_crtc(intel_encoder->base.crtc); | |
6852 | ||
6853 | if (prepare_pipes & (1 << intel_crtc->pipe)) | |
6854 | intel_encoder->connectors_active = false; | |
6855 | } | |
6856 | ||
6857 | intel_modeset_commit_output_state(dev); | |
6858 | ||
6859 | /* Update computed state. */ | |
6860 | list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, | |
6861 | base.head) { | |
6862 | intel_crtc->base.enabled = intel_crtc_in_use(&intel_crtc->base); | |
6863 | } | |
6864 | ||
6865 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
6866 | if (!connector->encoder || !connector->encoder->crtc) | |
6867 | continue; | |
6868 | ||
6869 | intel_crtc = to_intel_crtc(connector->encoder->crtc); | |
6870 | ||
6871 | if (prepare_pipes & (1 << intel_crtc->pipe)) { | |
68d34720 DV |
6872 | struct drm_property *dpms_property = |
6873 | dev->mode_config.dpms_property; | |
6874 | ||
ea9d758d | 6875 | connector->dpms = DRM_MODE_DPMS_ON; |
68d34720 DV |
6876 | drm_connector_property_set_value(connector, |
6877 | dpms_property, | |
6878 | DRM_MODE_DPMS_ON); | |
ea9d758d DV |
6879 | |
6880 | intel_encoder = to_intel_encoder(connector->encoder); | |
6881 | intel_encoder->connectors_active = true; | |
6882 | } | |
6883 | } | |
6884 | ||
6885 | } | |
6886 | ||
25c5b266 DV |
6887 | #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \ |
6888 | list_for_each_entry((intel_crtc), \ | |
6889 | &(dev)->mode_config.crtc_list, \ | |
6890 | base.head) \ | |
6891 | if (mask & (1 <<(intel_crtc)->pipe)) \ | |
6892 | ||
b980514c | 6893 | void |
8af6cf88 DV |
6894 | intel_modeset_check_state(struct drm_device *dev) |
6895 | { | |
6896 | struct intel_crtc *crtc; | |
6897 | struct intel_encoder *encoder; | |
6898 | struct intel_connector *connector; | |
6899 | ||
6900 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
6901 | base.head) { | |
6902 | /* This also checks the encoder/connector hw state with the | |
6903 | * ->get_hw_state callbacks. */ | |
6904 | intel_connector_check_state(connector); | |
6905 | ||
6906 | WARN(&connector->new_encoder->base != connector->base.encoder, | |
6907 | "connector's staged encoder doesn't match current encoder\n"); | |
6908 | } | |
6909 | ||
6910 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
6911 | base.head) { | |
6912 | bool enabled = false; | |
6913 | bool active = false; | |
6914 | enum pipe pipe, tracked_pipe; | |
6915 | ||
6916 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", | |
6917 | encoder->base.base.id, | |
6918 | drm_get_encoder_name(&encoder->base)); | |
6919 | ||
6920 | WARN(&encoder->new_crtc->base != encoder->base.crtc, | |
6921 | "encoder's stage crtc doesn't match current crtc\n"); | |
6922 | WARN(encoder->connectors_active && !encoder->base.crtc, | |
6923 | "encoder's active_connectors set, but no crtc\n"); | |
6924 | ||
6925 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
6926 | base.head) { | |
6927 | if (connector->base.encoder != &encoder->base) | |
6928 | continue; | |
6929 | enabled = true; | |
6930 | if (connector->base.dpms != DRM_MODE_DPMS_OFF) | |
6931 | active = true; | |
6932 | } | |
6933 | WARN(!!encoder->base.crtc != enabled, | |
6934 | "encoder's enabled state mismatch " | |
6935 | "(expected %i, found %i)\n", | |
6936 | !!encoder->base.crtc, enabled); | |
6937 | WARN(active && !encoder->base.crtc, | |
6938 | "active encoder with no crtc\n"); | |
6939 | ||
6940 | WARN(encoder->connectors_active != active, | |
6941 | "encoder's computed active state doesn't match tracked active state " | |
6942 | "(expected %i, found %i)\n", active, encoder->connectors_active); | |
6943 | ||
6944 | active = encoder->get_hw_state(encoder, &pipe); | |
6945 | WARN(active != encoder->connectors_active, | |
6946 | "encoder's hw state doesn't match sw tracking " | |
6947 | "(expected %i, found %i)\n", | |
6948 | encoder->connectors_active, active); | |
6949 | ||
6950 | if (!encoder->base.crtc) | |
6951 | continue; | |
6952 | ||
6953 | tracked_pipe = to_intel_crtc(encoder->base.crtc)->pipe; | |
6954 | WARN(active && pipe != tracked_pipe, | |
6955 | "active encoder's pipe doesn't match" | |
6956 | "(expected %i, found %i)\n", | |
6957 | tracked_pipe, pipe); | |
6958 | ||
6959 | } | |
6960 | ||
6961 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, | |
6962 | base.head) { | |
6963 | bool enabled = false; | |
6964 | bool active = false; | |
6965 | ||
6966 | DRM_DEBUG_KMS("[CRTC:%d]\n", | |
6967 | crtc->base.base.id); | |
6968 | ||
6969 | WARN(crtc->active && !crtc->base.enabled, | |
6970 | "active crtc, but not enabled in sw tracking\n"); | |
6971 | ||
6972 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
6973 | base.head) { | |
6974 | if (encoder->base.crtc != &crtc->base) | |
6975 | continue; | |
6976 | enabled = true; | |
6977 | if (encoder->connectors_active) | |
6978 | active = true; | |
6979 | } | |
6980 | WARN(active != crtc->active, | |
6981 | "crtc's computed active state doesn't match tracked active state " | |
6982 | "(expected %i, found %i)\n", active, crtc->active); | |
6983 | WARN(enabled != crtc->base.enabled, | |
6984 | "crtc's computed enabled state doesn't match tracked enabled state " | |
6985 | "(expected %i, found %i)\n", enabled, crtc->base.enabled); | |
6986 | ||
6987 | assert_pipe(dev->dev_private, crtc->pipe, crtc->active); | |
6988 | } | |
6989 | } | |
6990 | ||
a6778b3c DV |
6991 | bool intel_set_mode(struct drm_crtc *crtc, |
6992 | struct drm_display_mode *mode, | |
94352cf9 | 6993 | int x, int y, struct drm_framebuffer *fb) |
a6778b3c DV |
6994 | { |
6995 | struct drm_device *dev = crtc->dev; | |
dbf2b54e | 6996 | drm_i915_private_t *dev_priv = dev->dev_private; |
a6778b3c | 6997 | struct drm_display_mode *adjusted_mode, saved_mode, saved_hwmode; |
a6778b3c | 6998 | struct drm_encoder_helper_funcs *encoder_funcs; |
a6778b3c | 6999 | struct drm_encoder *encoder; |
25c5b266 DV |
7000 | struct intel_crtc *intel_crtc; |
7001 | unsigned disable_pipes, prepare_pipes, modeset_pipes; | |
a6778b3c DV |
7002 | bool ret = true; |
7003 | ||
e2e1ed41 | 7004 | intel_modeset_affected_pipes(crtc, &modeset_pipes, |
25c5b266 DV |
7005 | &prepare_pipes, &disable_pipes); |
7006 | ||
7007 | DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n", | |
7008 | modeset_pipes, prepare_pipes, disable_pipes); | |
e2e1ed41 | 7009 | |
976f8a20 DV |
7010 | for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc) |
7011 | intel_crtc_disable(&intel_crtc->base); | |
87f1faa6 | 7012 | |
a6778b3c DV |
7013 | saved_hwmode = crtc->hwmode; |
7014 | saved_mode = crtc->mode; | |
a6778b3c | 7015 | |
25c5b266 DV |
7016 | /* Hack: Because we don't (yet) support global modeset on multiple |
7017 | * crtcs, we don't keep track of the new mode for more than one crtc. | |
7018 | * Hence simply check whether any bit is set in modeset_pipes in all the | |
7019 | * pieces of code that are not yet converted to deal with mutliple crtcs | |
7020 | * changing their mode at the same time. */ | |
7021 | adjusted_mode = NULL; | |
7022 | if (modeset_pipes) { | |
7023 | adjusted_mode = intel_modeset_adjusted_mode(crtc, mode); | |
7024 | if (IS_ERR(adjusted_mode)) { | |
7025 | return false; | |
7026 | } | |
25c5b266 | 7027 | } |
a6778b3c | 7028 | |
ea9d758d DV |
7029 | for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) { |
7030 | if (intel_crtc->base.enabled) | |
7031 | dev_priv->display.crtc_disable(&intel_crtc->base); | |
7032 | } | |
a6778b3c | 7033 | |
6c4c86f5 DV |
7034 | /* crtc->mode is already used by the ->mode_set callbacks, hence we need |
7035 | * to set it here already despite that we pass it down the callchain. | |
7036 | */ | |
7037 | if (modeset_pipes) | |
25c5b266 | 7038 | crtc->mode = *mode; |
7758a113 | 7039 | |
ea9d758d DV |
7040 | /* Only after disabling all output pipelines that will be changed can we |
7041 | * update the the output configuration. */ | |
7042 | intel_modeset_update_state(dev, prepare_pipes); | |
7043 | ||
a6778b3c DV |
7044 | /* Set up the DPLL and any encoders state that needs to adjust or depend |
7045 | * on the DPLL. | |
7046 | */ | |
25c5b266 DV |
7047 | for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) { |
7048 | ret = !intel_crtc_mode_set(&intel_crtc->base, | |
7049 | mode, adjusted_mode, | |
7050 | x, y, fb); | |
7051 | if (!ret) | |
7052 | goto done; | |
a6778b3c | 7053 | |
25c5b266 | 7054 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
a6778b3c | 7055 | |
25c5b266 DV |
7056 | if (encoder->crtc != &intel_crtc->base) |
7057 | continue; | |
a6778b3c | 7058 | |
25c5b266 DV |
7059 | DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n", |
7060 | encoder->base.id, drm_get_encoder_name(encoder), | |
7061 | mode->base.id, mode->name); | |
7062 | encoder_funcs = encoder->helper_private; | |
7063 | encoder_funcs->mode_set(encoder, mode, adjusted_mode); | |
7064 | } | |
a6778b3c DV |
7065 | } |
7066 | ||
7067 | /* Now enable the clocks, plane, pipe, and connectors that we set up. */ | |
25c5b266 DV |
7068 | for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) |
7069 | dev_priv->display.crtc_enable(&intel_crtc->base); | |
a6778b3c | 7070 | |
25c5b266 DV |
7071 | if (modeset_pipes) { |
7072 | /* Store real post-adjustment hardware mode. */ | |
7073 | crtc->hwmode = *adjusted_mode; | |
a6778b3c | 7074 | |
25c5b266 DV |
7075 | /* Calculate and store various constants which |
7076 | * are later needed by vblank and swap-completion | |
7077 | * timestamping. They are derived from true hwmode. | |
7078 | */ | |
7079 | drm_calc_timestamping_constants(crtc); | |
7080 | } | |
a6778b3c DV |
7081 | |
7082 | /* FIXME: add subpixel order */ | |
7083 | done: | |
7084 | drm_mode_destroy(dev, adjusted_mode); | |
25c5b266 | 7085 | if (!ret && crtc->enabled) { |
a6778b3c DV |
7086 | crtc->hwmode = saved_hwmode; |
7087 | crtc->mode = saved_mode; | |
8af6cf88 DV |
7088 | } else { |
7089 | intel_modeset_check_state(dev); | |
a6778b3c DV |
7090 | } |
7091 | ||
7092 | return ret; | |
7093 | } | |
7094 | ||
25c5b266 DV |
7095 | #undef for_each_intel_crtc_masked |
7096 | ||
d9e55608 DV |
7097 | static void intel_set_config_free(struct intel_set_config *config) |
7098 | { | |
7099 | if (!config) | |
7100 | return; | |
7101 | ||
1aa4b628 DV |
7102 | kfree(config->save_connector_encoders); |
7103 | kfree(config->save_encoder_crtcs); | |
d9e55608 DV |
7104 | kfree(config); |
7105 | } | |
7106 | ||
85f9eb71 DV |
7107 | static int intel_set_config_save_state(struct drm_device *dev, |
7108 | struct intel_set_config *config) | |
7109 | { | |
85f9eb71 DV |
7110 | struct drm_encoder *encoder; |
7111 | struct drm_connector *connector; | |
7112 | int count; | |
7113 | ||
1aa4b628 DV |
7114 | config->save_encoder_crtcs = |
7115 | kcalloc(dev->mode_config.num_encoder, | |
7116 | sizeof(struct drm_crtc *), GFP_KERNEL); | |
7117 | if (!config->save_encoder_crtcs) | |
85f9eb71 DV |
7118 | return -ENOMEM; |
7119 | ||
1aa4b628 DV |
7120 | config->save_connector_encoders = |
7121 | kcalloc(dev->mode_config.num_connector, | |
7122 | sizeof(struct drm_encoder *), GFP_KERNEL); | |
7123 | if (!config->save_connector_encoders) | |
85f9eb71 DV |
7124 | return -ENOMEM; |
7125 | ||
7126 | /* Copy data. Note that driver private data is not affected. | |
7127 | * Should anything bad happen only the expected state is | |
7128 | * restored, not the drivers personal bookkeeping. | |
7129 | */ | |
85f9eb71 DV |
7130 | count = 0; |
7131 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
1aa4b628 | 7132 | config->save_encoder_crtcs[count++] = encoder->crtc; |
85f9eb71 DV |
7133 | } |
7134 | ||
7135 | count = 0; | |
7136 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
1aa4b628 | 7137 | config->save_connector_encoders[count++] = connector->encoder; |
85f9eb71 DV |
7138 | } |
7139 | ||
7140 | return 0; | |
7141 | } | |
7142 | ||
7143 | static void intel_set_config_restore_state(struct drm_device *dev, | |
7144 | struct intel_set_config *config) | |
7145 | { | |
9a935856 DV |
7146 | struct intel_encoder *encoder; |
7147 | struct intel_connector *connector; | |
85f9eb71 DV |
7148 | int count; |
7149 | ||
85f9eb71 | 7150 | count = 0; |
9a935856 DV |
7151 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
7152 | encoder->new_crtc = | |
7153 | to_intel_crtc(config->save_encoder_crtcs[count++]); | |
85f9eb71 DV |
7154 | } |
7155 | ||
7156 | count = 0; | |
9a935856 DV |
7157 | list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) { |
7158 | connector->new_encoder = | |
7159 | to_intel_encoder(config->save_connector_encoders[count++]); | |
85f9eb71 DV |
7160 | } |
7161 | } | |
7162 | ||
5e2b584e DV |
7163 | static void |
7164 | intel_set_config_compute_mode_changes(struct drm_mode_set *set, | |
7165 | struct intel_set_config *config) | |
7166 | { | |
7167 | ||
7168 | /* We should be able to check here if the fb has the same properties | |
7169 | * and then just flip_or_move it */ | |
7170 | if (set->crtc->fb != set->fb) { | |
7171 | /* If we have no fb then treat it as a full mode set */ | |
7172 | if (set->crtc->fb == NULL) { | |
7173 | DRM_DEBUG_KMS("crtc has no fb, full mode set\n"); | |
7174 | config->mode_changed = true; | |
7175 | } else if (set->fb == NULL) { | |
7176 | config->mode_changed = true; | |
7177 | } else if (set->fb->depth != set->crtc->fb->depth) { | |
7178 | config->mode_changed = true; | |
7179 | } else if (set->fb->bits_per_pixel != | |
7180 | set->crtc->fb->bits_per_pixel) { | |
7181 | config->mode_changed = true; | |
7182 | } else | |
7183 | config->fb_changed = true; | |
7184 | } | |
7185 | ||
835c5873 | 7186 | if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y)) |
5e2b584e DV |
7187 | config->fb_changed = true; |
7188 | ||
7189 | if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) { | |
7190 | DRM_DEBUG_KMS("modes are different, full mode set\n"); | |
7191 | drm_mode_debug_printmodeline(&set->crtc->mode); | |
7192 | drm_mode_debug_printmodeline(set->mode); | |
7193 | config->mode_changed = true; | |
7194 | } | |
7195 | } | |
7196 | ||
2e431051 | 7197 | static int |
9a935856 DV |
7198 | intel_modeset_stage_output_state(struct drm_device *dev, |
7199 | struct drm_mode_set *set, | |
7200 | struct intel_set_config *config) | |
50f56119 | 7201 | { |
85f9eb71 | 7202 | struct drm_crtc *new_crtc; |
9a935856 DV |
7203 | struct intel_connector *connector; |
7204 | struct intel_encoder *encoder; | |
2e431051 | 7205 | int count, ro; |
50f56119 | 7206 | |
9a935856 DV |
7207 | /* The upper layers ensure that we either disabl a crtc or have a list |
7208 | * of connectors. For paranoia, double-check this. */ | |
7209 | WARN_ON(!set->fb && (set->num_connectors != 0)); | |
7210 | WARN_ON(set->fb && (set->num_connectors == 0)); | |
7211 | ||
50f56119 | 7212 | count = 0; |
9a935856 DV |
7213 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
7214 | base.head) { | |
7215 | /* Otherwise traverse passed in connector list and get encoders | |
7216 | * for them. */ | |
50f56119 | 7217 | for (ro = 0; ro < set->num_connectors; ro++) { |
9a935856 DV |
7218 | if (set->connectors[ro] == &connector->base) { |
7219 | connector->new_encoder = connector->encoder; | |
50f56119 DV |
7220 | break; |
7221 | } | |
7222 | } | |
7223 | ||
9a935856 DV |
7224 | /* If we disable the crtc, disable all its connectors. Also, if |
7225 | * the connector is on the changing crtc but not on the new | |
7226 | * connector list, disable it. */ | |
7227 | if ((!set->fb || ro == set->num_connectors) && | |
7228 | connector->base.encoder && | |
7229 | connector->base.encoder->crtc == set->crtc) { | |
7230 | connector->new_encoder = NULL; | |
7231 | ||
7232 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n", | |
7233 | connector->base.base.id, | |
7234 | drm_get_connector_name(&connector->base)); | |
7235 | } | |
7236 | ||
7237 | ||
7238 | if (&connector->new_encoder->base != connector->base.encoder) { | |
50f56119 | 7239 | DRM_DEBUG_KMS("encoder changed, full mode switch\n"); |
5e2b584e | 7240 | config->mode_changed = true; |
50f56119 | 7241 | } |
9a935856 DV |
7242 | |
7243 | /* Disable all disconnected encoders. */ | |
7244 | if (connector->base.status == connector_status_disconnected) | |
7245 | connector->new_encoder = NULL; | |
50f56119 | 7246 | } |
9a935856 | 7247 | /* connector->new_encoder is now updated for all connectors. */ |
50f56119 | 7248 | |
9a935856 | 7249 | /* Update crtc of enabled connectors. */ |
50f56119 | 7250 | count = 0; |
9a935856 DV |
7251 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
7252 | base.head) { | |
7253 | if (!connector->new_encoder) | |
50f56119 DV |
7254 | continue; |
7255 | ||
9a935856 | 7256 | new_crtc = connector->new_encoder->base.crtc; |
50f56119 DV |
7257 | |
7258 | for (ro = 0; ro < set->num_connectors; ro++) { | |
9a935856 | 7259 | if (set->connectors[ro] == &connector->base) |
50f56119 DV |
7260 | new_crtc = set->crtc; |
7261 | } | |
7262 | ||
7263 | /* Make sure the new CRTC will work with the encoder */ | |
9a935856 DV |
7264 | if (!intel_encoder_crtc_ok(&connector->new_encoder->base, |
7265 | new_crtc)) { | |
5e2b584e | 7266 | return -EINVAL; |
50f56119 | 7267 | } |
9a935856 DV |
7268 | connector->encoder->new_crtc = to_intel_crtc(new_crtc); |
7269 | ||
7270 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n", | |
7271 | connector->base.base.id, | |
7272 | drm_get_connector_name(&connector->base), | |
7273 | new_crtc->base.id); | |
7274 | } | |
7275 | ||
7276 | /* Check for any encoders that needs to be disabled. */ | |
7277 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
7278 | base.head) { | |
7279 | list_for_each_entry(connector, | |
7280 | &dev->mode_config.connector_list, | |
7281 | base.head) { | |
7282 | if (connector->new_encoder == encoder) { | |
7283 | WARN_ON(!connector->new_encoder->new_crtc); | |
7284 | ||
7285 | goto next_encoder; | |
7286 | } | |
7287 | } | |
7288 | encoder->new_crtc = NULL; | |
7289 | next_encoder: | |
7290 | /* Only now check for crtc changes so we don't miss encoders | |
7291 | * that will be disabled. */ | |
7292 | if (&encoder->new_crtc->base != encoder->base.crtc) { | |
50f56119 | 7293 | DRM_DEBUG_KMS("crtc changed, full mode switch\n"); |
5e2b584e | 7294 | config->mode_changed = true; |
50f56119 DV |
7295 | } |
7296 | } | |
9a935856 | 7297 | /* Now we've also updated encoder->new_crtc for all encoders. */ |
50f56119 | 7298 | |
2e431051 DV |
7299 | return 0; |
7300 | } | |
7301 | ||
7302 | static int intel_crtc_set_config(struct drm_mode_set *set) | |
7303 | { | |
7304 | struct drm_device *dev; | |
2e431051 DV |
7305 | struct drm_mode_set save_set; |
7306 | struct intel_set_config *config; | |
7307 | int ret; | |
2e431051 | 7308 | |
8d3e375e DV |
7309 | BUG_ON(!set); |
7310 | BUG_ON(!set->crtc); | |
7311 | BUG_ON(!set->crtc->helper_private); | |
2e431051 DV |
7312 | |
7313 | if (!set->mode) | |
7314 | set->fb = NULL; | |
7315 | ||
431e50f7 DV |
7316 | /* The fb helper likes to play gross jokes with ->mode_set_config. |
7317 | * Unfortunately the crtc helper doesn't do much at all for this case, | |
7318 | * so we have to cope with this madness until the fb helper is fixed up. */ | |
7319 | if (set->fb && set->num_connectors == 0) | |
7320 | return 0; | |
7321 | ||
2e431051 DV |
7322 | if (set->fb) { |
7323 | DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n", | |
7324 | set->crtc->base.id, set->fb->base.id, | |
7325 | (int)set->num_connectors, set->x, set->y); | |
7326 | } else { | |
7327 | DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id); | |
2e431051 DV |
7328 | } |
7329 | ||
7330 | dev = set->crtc->dev; | |
7331 | ||
7332 | ret = -ENOMEM; | |
7333 | config = kzalloc(sizeof(*config), GFP_KERNEL); | |
7334 | if (!config) | |
7335 | goto out_config; | |
7336 | ||
7337 | ret = intel_set_config_save_state(dev, config); | |
7338 | if (ret) | |
7339 | goto out_config; | |
7340 | ||
7341 | save_set.crtc = set->crtc; | |
7342 | save_set.mode = &set->crtc->mode; | |
7343 | save_set.x = set->crtc->x; | |
7344 | save_set.y = set->crtc->y; | |
7345 | save_set.fb = set->crtc->fb; | |
7346 | ||
7347 | /* Compute whether we need a full modeset, only an fb base update or no | |
7348 | * change at all. In the future we might also check whether only the | |
7349 | * mode changed, e.g. for LVDS where we only change the panel fitter in | |
7350 | * such cases. */ | |
7351 | intel_set_config_compute_mode_changes(set, config); | |
7352 | ||
9a935856 | 7353 | ret = intel_modeset_stage_output_state(dev, set, config); |
2e431051 DV |
7354 | if (ret) |
7355 | goto fail; | |
7356 | ||
5e2b584e | 7357 | if (config->mode_changed) { |
87f1faa6 | 7358 | if (set->mode) { |
50f56119 DV |
7359 | DRM_DEBUG_KMS("attempting to set mode from" |
7360 | " userspace\n"); | |
7361 | drm_mode_debug_printmodeline(set->mode); | |
87f1faa6 DV |
7362 | } |
7363 | ||
7364 | if (!intel_set_mode(set->crtc, set->mode, | |
7365 | set->x, set->y, set->fb)) { | |
7366 | DRM_ERROR("failed to set mode on [CRTC:%d]\n", | |
7367 | set->crtc->base.id); | |
7368 | ret = -EINVAL; | |
7369 | goto fail; | |
7370 | } | |
5e2b584e | 7371 | } else if (config->fb_changed) { |
4f660f49 | 7372 | ret = intel_pipe_set_base(set->crtc, |
94352cf9 | 7373 | set->x, set->y, set->fb); |
50f56119 DV |
7374 | } |
7375 | ||
d9e55608 DV |
7376 | intel_set_config_free(config); |
7377 | ||
50f56119 DV |
7378 | return 0; |
7379 | ||
7380 | fail: | |
85f9eb71 | 7381 | intel_set_config_restore_state(dev, config); |
50f56119 DV |
7382 | |
7383 | /* Try to restore the config */ | |
5e2b584e | 7384 | if (config->mode_changed && |
a6778b3c DV |
7385 | !intel_set_mode(save_set.crtc, save_set.mode, |
7386 | save_set.x, save_set.y, save_set.fb)) | |
50f56119 DV |
7387 | DRM_ERROR("failed to restore config after modeset failure\n"); |
7388 | ||
d9e55608 DV |
7389 | out_config: |
7390 | intel_set_config_free(config); | |
50f56119 DV |
7391 | return ret; |
7392 | } | |
7393 | ||
f6e5b160 | 7394 | static const struct drm_crtc_funcs intel_crtc_funcs = { |
f6e5b160 CW |
7395 | .cursor_set = intel_crtc_cursor_set, |
7396 | .cursor_move = intel_crtc_cursor_move, | |
7397 | .gamma_set = intel_crtc_gamma_set, | |
50f56119 | 7398 | .set_config = intel_crtc_set_config, |
f6e5b160 CW |
7399 | .destroy = intel_crtc_destroy, |
7400 | .page_flip = intel_crtc_page_flip, | |
7401 | }; | |
7402 | ||
ee7b9f93 JB |
7403 | static void intel_pch_pll_init(struct drm_device *dev) |
7404 | { | |
7405 | drm_i915_private_t *dev_priv = dev->dev_private; | |
7406 | int i; | |
7407 | ||
7408 | if (dev_priv->num_pch_pll == 0) { | |
7409 | DRM_DEBUG_KMS("No PCH PLLs on this hardware, skipping initialisation\n"); | |
7410 | return; | |
7411 | } | |
7412 | ||
7413 | for (i = 0; i < dev_priv->num_pch_pll; i++) { | |
7414 | dev_priv->pch_plls[i].pll_reg = _PCH_DPLL(i); | |
7415 | dev_priv->pch_plls[i].fp0_reg = _PCH_FP0(i); | |
7416 | dev_priv->pch_plls[i].fp1_reg = _PCH_FP1(i); | |
7417 | } | |
7418 | } | |
7419 | ||
b358d0a6 | 7420 | static void intel_crtc_init(struct drm_device *dev, int pipe) |
79e53945 | 7421 | { |
22fd0fab | 7422 | drm_i915_private_t *dev_priv = dev->dev_private; |
79e53945 JB |
7423 | struct intel_crtc *intel_crtc; |
7424 | int i; | |
7425 | ||
7426 | intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL); | |
7427 | if (intel_crtc == NULL) | |
7428 | return; | |
7429 | ||
7430 | drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs); | |
7431 | ||
7432 | drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256); | |
79e53945 JB |
7433 | for (i = 0; i < 256; i++) { |
7434 | intel_crtc->lut_r[i] = i; | |
7435 | intel_crtc->lut_g[i] = i; | |
7436 | intel_crtc->lut_b[i] = i; | |
7437 | } | |
7438 | ||
80824003 JB |
7439 | /* Swap pipes & planes for FBC on pre-965 */ |
7440 | intel_crtc->pipe = pipe; | |
7441 | intel_crtc->plane = pipe; | |
e2e767ab | 7442 | if (IS_MOBILE(dev) && IS_GEN3(dev)) { |
28c97730 | 7443 | DRM_DEBUG_KMS("swapping pipes & planes for FBC\n"); |
e2e767ab | 7444 | intel_crtc->plane = !pipe; |
80824003 JB |
7445 | } |
7446 | ||
22fd0fab JB |
7447 | BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) || |
7448 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL); | |
7449 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base; | |
7450 | dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base; | |
7451 | ||
5a354204 | 7452 | intel_crtc->bpp = 24; /* default for pre-Ironlake */ |
7e7d76c3 | 7453 | |
79e53945 | 7454 | drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); |
79e53945 JB |
7455 | } |
7456 | ||
08d7b3d1 | 7457 | int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, |
05394f39 | 7458 | struct drm_file *file) |
08d7b3d1 | 7459 | { |
08d7b3d1 | 7460 | struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; |
c05422d5 DV |
7461 | struct drm_mode_object *drmmode_obj; |
7462 | struct intel_crtc *crtc; | |
08d7b3d1 | 7463 | |
1cff8f6b DV |
7464 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
7465 | return -ENODEV; | |
08d7b3d1 | 7466 | |
c05422d5 DV |
7467 | drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id, |
7468 | DRM_MODE_OBJECT_CRTC); | |
08d7b3d1 | 7469 | |
c05422d5 | 7470 | if (!drmmode_obj) { |
08d7b3d1 CW |
7471 | DRM_ERROR("no such CRTC id\n"); |
7472 | return -EINVAL; | |
7473 | } | |
7474 | ||
c05422d5 DV |
7475 | crtc = to_intel_crtc(obj_to_crtc(drmmode_obj)); |
7476 | pipe_from_crtc_id->pipe = crtc->pipe; | |
08d7b3d1 | 7477 | |
c05422d5 | 7478 | return 0; |
08d7b3d1 CW |
7479 | } |
7480 | ||
66a9278e | 7481 | static int intel_encoder_clones(struct intel_encoder *encoder) |
79e53945 | 7482 | { |
66a9278e DV |
7483 | struct drm_device *dev = encoder->base.dev; |
7484 | struct intel_encoder *source_encoder; | |
79e53945 | 7485 | int index_mask = 0; |
79e53945 JB |
7486 | int entry = 0; |
7487 | ||
66a9278e DV |
7488 | list_for_each_entry(source_encoder, |
7489 | &dev->mode_config.encoder_list, base.head) { | |
7490 | ||
7491 | if (encoder == source_encoder) | |
79e53945 | 7492 | index_mask |= (1 << entry); |
66a9278e DV |
7493 | |
7494 | /* Intel hw has only one MUX where enocoders could be cloned. */ | |
7495 | if (encoder->cloneable && source_encoder->cloneable) | |
7496 | index_mask |= (1 << entry); | |
7497 | ||
79e53945 JB |
7498 | entry++; |
7499 | } | |
4ef69c7a | 7500 | |
79e53945 JB |
7501 | return index_mask; |
7502 | } | |
7503 | ||
4d302442 CW |
7504 | static bool has_edp_a(struct drm_device *dev) |
7505 | { | |
7506 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7507 | ||
7508 | if (!IS_MOBILE(dev)) | |
7509 | return false; | |
7510 | ||
7511 | if ((I915_READ(DP_A) & DP_DETECTED) == 0) | |
7512 | return false; | |
7513 | ||
7514 | if (IS_GEN5(dev) && | |
7515 | (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE)) | |
7516 | return false; | |
7517 | ||
7518 | return true; | |
7519 | } | |
7520 | ||
79e53945 JB |
7521 | static void intel_setup_outputs(struct drm_device *dev) |
7522 | { | |
725e30ad | 7523 | struct drm_i915_private *dev_priv = dev->dev_private; |
4ef69c7a | 7524 | struct intel_encoder *encoder; |
cb0953d7 | 7525 | bool dpd_is_edp = false; |
f3cfcba6 | 7526 | bool has_lvds; |
79e53945 | 7527 | |
f3cfcba6 | 7528 | has_lvds = intel_lvds_init(dev); |
c5d1b51d CW |
7529 | if (!has_lvds && !HAS_PCH_SPLIT(dev)) { |
7530 | /* disable the panel fitter on everything but LVDS */ | |
7531 | I915_WRITE(PFIT_CONTROL, 0); | |
7532 | } | |
79e53945 | 7533 | |
bad720ff | 7534 | if (HAS_PCH_SPLIT(dev)) { |
cb0953d7 | 7535 | dpd_is_edp = intel_dpd_is_edp(dev); |
30ad48b7 | 7536 | |
4d302442 | 7537 | if (has_edp_a(dev)) |
ab9d7c30 | 7538 | intel_dp_init(dev, DP_A, PORT_A); |
32f9d658 | 7539 | |
cb0953d7 | 7540 | if (dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED)) |
ab9d7c30 | 7541 | intel_dp_init(dev, PCH_DP_D, PORT_D); |
cb0953d7 AJ |
7542 | } |
7543 | ||
7544 | intel_crt_init(dev); | |
7545 | ||
0e72a5b5 ED |
7546 | if (IS_HASWELL(dev)) { |
7547 | int found; | |
7548 | ||
7549 | /* Haswell uses DDI functions to detect digital outputs */ | |
7550 | found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED; | |
7551 | /* DDI A only supports eDP */ | |
7552 | if (found) | |
7553 | intel_ddi_init(dev, PORT_A); | |
7554 | ||
7555 | /* DDI B, C and D detection is indicated by the SFUSE_STRAP | |
7556 | * register */ | |
7557 | found = I915_READ(SFUSE_STRAP); | |
7558 | ||
7559 | if (found & SFUSE_STRAP_DDIB_DETECTED) | |
7560 | intel_ddi_init(dev, PORT_B); | |
7561 | if (found & SFUSE_STRAP_DDIC_DETECTED) | |
7562 | intel_ddi_init(dev, PORT_C); | |
7563 | if (found & SFUSE_STRAP_DDID_DETECTED) | |
7564 | intel_ddi_init(dev, PORT_D); | |
7565 | } else if (HAS_PCH_SPLIT(dev)) { | |
cb0953d7 AJ |
7566 | int found; |
7567 | ||
30ad48b7 | 7568 | if (I915_READ(HDMIB) & PORT_DETECTED) { |
461ed3ca | 7569 | /* PCH SDVOB multiplex with HDMIB */ |
eef4eacb | 7570 | found = intel_sdvo_init(dev, PCH_SDVOB, true); |
30ad48b7 | 7571 | if (!found) |
08d644ad | 7572 | intel_hdmi_init(dev, HDMIB, PORT_B); |
5eb08b69 | 7573 | if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) |
ab9d7c30 | 7574 | intel_dp_init(dev, PCH_DP_B, PORT_B); |
30ad48b7 ZW |
7575 | } |
7576 | ||
7577 | if (I915_READ(HDMIC) & PORT_DETECTED) | |
08d644ad | 7578 | intel_hdmi_init(dev, HDMIC, PORT_C); |
30ad48b7 | 7579 | |
b708a1d5 | 7580 | if (!dpd_is_edp && I915_READ(HDMID) & PORT_DETECTED) |
08d644ad | 7581 | intel_hdmi_init(dev, HDMID, PORT_D); |
30ad48b7 | 7582 | |
5eb08b69 | 7583 | if (I915_READ(PCH_DP_C) & DP_DETECTED) |
ab9d7c30 | 7584 | intel_dp_init(dev, PCH_DP_C, PORT_C); |
5eb08b69 | 7585 | |
cb0953d7 | 7586 | if (!dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED)) |
ab9d7c30 | 7587 | intel_dp_init(dev, PCH_DP_D, PORT_D); |
4a87d65d JB |
7588 | } else if (IS_VALLEYVIEW(dev)) { |
7589 | int found; | |
7590 | ||
7591 | if (I915_READ(SDVOB) & PORT_DETECTED) { | |
7592 | /* SDVOB multiplex with HDMIB */ | |
7593 | found = intel_sdvo_init(dev, SDVOB, true); | |
7594 | if (!found) | |
08d644ad | 7595 | intel_hdmi_init(dev, SDVOB, PORT_B); |
4a87d65d | 7596 | if (!found && (I915_READ(DP_B) & DP_DETECTED)) |
ab9d7c30 | 7597 | intel_dp_init(dev, DP_B, PORT_B); |
4a87d65d JB |
7598 | } |
7599 | ||
7600 | if (I915_READ(SDVOC) & PORT_DETECTED) | |
08d644ad | 7601 | intel_hdmi_init(dev, SDVOC, PORT_C); |
5eb08b69 | 7602 | |
4a87d65d JB |
7603 | /* Shares lanes with HDMI on SDVOC */ |
7604 | if (I915_READ(DP_C) & DP_DETECTED) | |
ab9d7c30 | 7605 | intel_dp_init(dev, DP_C, PORT_C); |
103a196f | 7606 | } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) { |
27185ae1 | 7607 | bool found = false; |
7d57382e | 7608 | |
725e30ad | 7609 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 7610 | DRM_DEBUG_KMS("probing SDVOB\n"); |
eef4eacb | 7611 | found = intel_sdvo_init(dev, SDVOB, true); |
b01f2c3a JB |
7612 | if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) { |
7613 | DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); | |
08d644ad | 7614 | intel_hdmi_init(dev, SDVOB, PORT_B); |
b01f2c3a | 7615 | } |
27185ae1 | 7616 | |
b01f2c3a JB |
7617 | if (!found && SUPPORTS_INTEGRATED_DP(dev)) { |
7618 | DRM_DEBUG_KMS("probing DP_B\n"); | |
ab9d7c30 | 7619 | intel_dp_init(dev, DP_B, PORT_B); |
b01f2c3a | 7620 | } |
725e30ad | 7621 | } |
13520b05 KH |
7622 | |
7623 | /* Before G4X SDVOC doesn't have its own detect register */ | |
13520b05 | 7624 | |
b01f2c3a JB |
7625 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
7626 | DRM_DEBUG_KMS("probing SDVOC\n"); | |
eef4eacb | 7627 | found = intel_sdvo_init(dev, SDVOC, false); |
b01f2c3a | 7628 | } |
27185ae1 ML |
7629 | |
7630 | if (!found && (I915_READ(SDVOC) & SDVO_DETECTED)) { | |
7631 | ||
b01f2c3a JB |
7632 | if (SUPPORTS_INTEGRATED_HDMI(dev)) { |
7633 | DRM_DEBUG_KMS("probing HDMI on SDVOC\n"); | |
08d644ad | 7634 | intel_hdmi_init(dev, SDVOC, PORT_C); |
b01f2c3a JB |
7635 | } |
7636 | if (SUPPORTS_INTEGRATED_DP(dev)) { | |
7637 | DRM_DEBUG_KMS("probing DP_C\n"); | |
ab9d7c30 | 7638 | intel_dp_init(dev, DP_C, PORT_C); |
b01f2c3a | 7639 | } |
725e30ad | 7640 | } |
27185ae1 | 7641 | |
b01f2c3a JB |
7642 | if (SUPPORTS_INTEGRATED_DP(dev) && |
7643 | (I915_READ(DP_D) & DP_DETECTED)) { | |
7644 | DRM_DEBUG_KMS("probing DP_D\n"); | |
ab9d7c30 | 7645 | intel_dp_init(dev, DP_D, PORT_D); |
b01f2c3a | 7646 | } |
bad720ff | 7647 | } else if (IS_GEN2(dev)) |
79e53945 JB |
7648 | intel_dvo_init(dev); |
7649 | ||
103a196f | 7650 | if (SUPPORTS_TV(dev)) |
79e53945 JB |
7651 | intel_tv_init(dev); |
7652 | ||
4ef69c7a CW |
7653 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
7654 | encoder->base.possible_crtcs = encoder->crtc_mask; | |
7655 | encoder->base.possible_clones = | |
66a9278e | 7656 | intel_encoder_clones(encoder); |
79e53945 | 7657 | } |
47356eb6 | 7658 | |
40579abe | 7659 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) |
9fb526db | 7660 | ironlake_init_pch_refclk(dev); |
79e53945 JB |
7661 | } |
7662 | ||
7663 | static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb) | |
7664 | { | |
7665 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
79e53945 JB |
7666 | |
7667 | drm_framebuffer_cleanup(fb); | |
05394f39 | 7668 | drm_gem_object_unreference_unlocked(&intel_fb->obj->base); |
79e53945 JB |
7669 | |
7670 | kfree(intel_fb); | |
7671 | } | |
7672 | ||
7673 | static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb, | |
05394f39 | 7674 | struct drm_file *file, |
79e53945 JB |
7675 | unsigned int *handle) |
7676 | { | |
7677 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
05394f39 | 7678 | struct drm_i915_gem_object *obj = intel_fb->obj; |
79e53945 | 7679 | |
05394f39 | 7680 | return drm_gem_handle_create(file, &obj->base, handle); |
79e53945 JB |
7681 | } |
7682 | ||
7683 | static const struct drm_framebuffer_funcs intel_fb_funcs = { | |
7684 | .destroy = intel_user_framebuffer_destroy, | |
7685 | .create_handle = intel_user_framebuffer_create_handle, | |
7686 | }; | |
7687 | ||
38651674 DA |
7688 | int intel_framebuffer_init(struct drm_device *dev, |
7689 | struct intel_framebuffer *intel_fb, | |
308e5bcb | 7690 | struct drm_mode_fb_cmd2 *mode_cmd, |
05394f39 | 7691 | struct drm_i915_gem_object *obj) |
79e53945 | 7692 | { |
79e53945 JB |
7693 | int ret; |
7694 | ||
05394f39 | 7695 | if (obj->tiling_mode == I915_TILING_Y) |
57cd6508 CW |
7696 | return -EINVAL; |
7697 | ||
308e5bcb | 7698 | if (mode_cmd->pitches[0] & 63) |
57cd6508 CW |
7699 | return -EINVAL; |
7700 | ||
308e5bcb | 7701 | switch (mode_cmd->pixel_format) { |
04b3924d VS |
7702 | case DRM_FORMAT_RGB332: |
7703 | case DRM_FORMAT_RGB565: | |
7704 | case DRM_FORMAT_XRGB8888: | |
b250da79 | 7705 | case DRM_FORMAT_XBGR8888: |
04b3924d VS |
7706 | case DRM_FORMAT_ARGB8888: |
7707 | case DRM_FORMAT_XRGB2101010: | |
7708 | case DRM_FORMAT_ARGB2101010: | |
308e5bcb | 7709 | /* RGB formats are common across chipsets */ |
b5626747 | 7710 | break; |
04b3924d VS |
7711 | case DRM_FORMAT_YUYV: |
7712 | case DRM_FORMAT_UYVY: | |
7713 | case DRM_FORMAT_YVYU: | |
7714 | case DRM_FORMAT_VYUY: | |
57cd6508 CW |
7715 | break; |
7716 | default: | |
aca25848 ED |
7717 | DRM_DEBUG_KMS("unsupported pixel format %u\n", |
7718 | mode_cmd->pixel_format); | |
57cd6508 CW |
7719 | return -EINVAL; |
7720 | } | |
7721 | ||
79e53945 JB |
7722 | ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); |
7723 | if (ret) { | |
7724 | DRM_ERROR("framebuffer init failed %d\n", ret); | |
7725 | return ret; | |
7726 | } | |
7727 | ||
7728 | drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); | |
79e53945 | 7729 | intel_fb->obj = obj; |
79e53945 JB |
7730 | return 0; |
7731 | } | |
7732 | ||
79e53945 JB |
7733 | static struct drm_framebuffer * |
7734 | intel_user_framebuffer_create(struct drm_device *dev, | |
7735 | struct drm_file *filp, | |
308e5bcb | 7736 | struct drm_mode_fb_cmd2 *mode_cmd) |
79e53945 | 7737 | { |
05394f39 | 7738 | struct drm_i915_gem_object *obj; |
79e53945 | 7739 | |
308e5bcb JB |
7740 | obj = to_intel_bo(drm_gem_object_lookup(dev, filp, |
7741 | mode_cmd->handles[0])); | |
c8725226 | 7742 | if (&obj->base == NULL) |
cce13ff7 | 7743 | return ERR_PTR(-ENOENT); |
79e53945 | 7744 | |
d2dff872 | 7745 | return intel_framebuffer_create(dev, mode_cmd, obj); |
79e53945 JB |
7746 | } |
7747 | ||
79e53945 | 7748 | static const struct drm_mode_config_funcs intel_mode_funcs = { |
79e53945 | 7749 | .fb_create = intel_user_framebuffer_create, |
eb1f8e4f | 7750 | .output_poll_changed = intel_fb_output_poll_changed, |
79e53945 JB |
7751 | }; |
7752 | ||
e70236a8 JB |
7753 | /* Set up chip specific display functions */ |
7754 | static void intel_init_display(struct drm_device *dev) | |
7755 | { | |
7756 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7757 | ||
7758 | /* We always want a DPMS function */ | |
f564048e | 7759 | if (HAS_PCH_SPLIT(dev)) { |
f564048e | 7760 | dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set; |
76e5a89c DV |
7761 | dev_priv->display.crtc_enable = ironlake_crtc_enable; |
7762 | dev_priv->display.crtc_disable = ironlake_crtc_disable; | |
ee7b9f93 | 7763 | dev_priv->display.off = ironlake_crtc_off; |
17638cd6 | 7764 | dev_priv->display.update_plane = ironlake_update_plane; |
f564048e | 7765 | } else { |
f564048e | 7766 | dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set; |
76e5a89c DV |
7767 | dev_priv->display.crtc_enable = i9xx_crtc_enable; |
7768 | dev_priv->display.crtc_disable = i9xx_crtc_disable; | |
ee7b9f93 | 7769 | dev_priv->display.off = i9xx_crtc_off; |
17638cd6 | 7770 | dev_priv->display.update_plane = i9xx_update_plane; |
f564048e | 7771 | } |
e70236a8 | 7772 | |
e70236a8 | 7773 | /* Returns the core display clock speed */ |
25eb05fc JB |
7774 | if (IS_VALLEYVIEW(dev)) |
7775 | dev_priv->display.get_display_clock_speed = | |
7776 | valleyview_get_display_clock_speed; | |
7777 | else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev))) | |
e70236a8 JB |
7778 | dev_priv->display.get_display_clock_speed = |
7779 | i945_get_display_clock_speed; | |
7780 | else if (IS_I915G(dev)) | |
7781 | dev_priv->display.get_display_clock_speed = | |
7782 | i915_get_display_clock_speed; | |
f2b115e6 | 7783 | else if (IS_I945GM(dev) || IS_845G(dev) || IS_PINEVIEW_M(dev)) |
e70236a8 JB |
7784 | dev_priv->display.get_display_clock_speed = |
7785 | i9xx_misc_get_display_clock_speed; | |
7786 | else if (IS_I915GM(dev)) | |
7787 | dev_priv->display.get_display_clock_speed = | |
7788 | i915gm_get_display_clock_speed; | |
7789 | else if (IS_I865G(dev)) | |
7790 | dev_priv->display.get_display_clock_speed = | |
7791 | i865_get_display_clock_speed; | |
f0f8a9ce | 7792 | else if (IS_I85X(dev)) |
e70236a8 JB |
7793 | dev_priv->display.get_display_clock_speed = |
7794 | i855_get_display_clock_speed; | |
7795 | else /* 852, 830 */ | |
7796 | dev_priv->display.get_display_clock_speed = | |
7797 | i830_get_display_clock_speed; | |
7798 | ||
7f8a8569 | 7799 | if (HAS_PCH_SPLIT(dev)) { |
f00a3ddf | 7800 | if (IS_GEN5(dev)) { |
674cf967 | 7801 | dev_priv->display.fdi_link_train = ironlake_fdi_link_train; |
e0dac65e | 7802 | dev_priv->display.write_eld = ironlake_write_eld; |
1398261a | 7803 | } else if (IS_GEN6(dev)) { |
674cf967 | 7804 | dev_priv->display.fdi_link_train = gen6_fdi_link_train; |
e0dac65e | 7805 | dev_priv->display.write_eld = ironlake_write_eld; |
357555c0 JB |
7806 | } else if (IS_IVYBRIDGE(dev)) { |
7807 | /* FIXME: detect B0+ stepping and use auto training */ | |
7808 | dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train; | |
e0dac65e | 7809 | dev_priv->display.write_eld = ironlake_write_eld; |
c82e4d26 ED |
7810 | } else if (IS_HASWELL(dev)) { |
7811 | dev_priv->display.fdi_link_train = hsw_fdi_link_train; | |
83358c85 | 7812 | dev_priv->display.write_eld = haswell_write_eld; |
7f8a8569 ZW |
7813 | } else |
7814 | dev_priv->display.update_wm = NULL; | |
6067aaea | 7815 | } else if (IS_G4X(dev)) { |
e0dac65e | 7816 | dev_priv->display.write_eld = g4x_write_eld; |
e70236a8 | 7817 | } |
8c9f3aaf JB |
7818 | |
7819 | /* Default just returns -ENODEV to indicate unsupported */ | |
7820 | dev_priv->display.queue_flip = intel_default_queue_flip; | |
7821 | ||
7822 | switch (INTEL_INFO(dev)->gen) { | |
7823 | case 2: | |
7824 | dev_priv->display.queue_flip = intel_gen2_queue_flip; | |
7825 | break; | |
7826 | ||
7827 | case 3: | |
7828 | dev_priv->display.queue_flip = intel_gen3_queue_flip; | |
7829 | break; | |
7830 | ||
7831 | case 4: | |
7832 | case 5: | |
7833 | dev_priv->display.queue_flip = intel_gen4_queue_flip; | |
7834 | break; | |
7835 | ||
7836 | case 6: | |
7837 | dev_priv->display.queue_flip = intel_gen6_queue_flip; | |
7838 | break; | |
7c9017e5 JB |
7839 | case 7: |
7840 | dev_priv->display.queue_flip = intel_gen7_queue_flip; | |
7841 | break; | |
8c9f3aaf | 7842 | } |
e70236a8 JB |
7843 | } |
7844 | ||
b690e96c JB |
7845 | /* |
7846 | * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend, | |
7847 | * resume, or other times. This quirk makes sure that's the case for | |
7848 | * affected systems. | |
7849 | */ | |
0206e353 | 7850 | static void quirk_pipea_force(struct drm_device *dev) |
b690e96c JB |
7851 | { |
7852 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7853 | ||
7854 | dev_priv->quirks |= QUIRK_PIPEA_FORCE; | |
bc0daf48 | 7855 | DRM_INFO("applying pipe a force quirk\n"); |
b690e96c JB |
7856 | } |
7857 | ||
435793df KP |
7858 | /* |
7859 | * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason | |
7860 | */ | |
7861 | static void quirk_ssc_force_disable(struct drm_device *dev) | |
7862 | { | |
7863 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7864 | dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE; | |
bc0daf48 | 7865 | DRM_INFO("applying lvds SSC disable quirk\n"); |
435793df KP |
7866 | } |
7867 | ||
4dca20ef | 7868 | /* |
5a15ab5b CE |
7869 | * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight |
7870 | * brightness value | |
4dca20ef CE |
7871 | */ |
7872 | static void quirk_invert_brightness(struct drm_device *dev) | |
7873 | { | |
7874 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7875 | dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS; | |
bc0daf48 | 7876 | DRM_INFO("applying inverted panel brightness quirk\n"); |
435793df KP |
7877 | } |
7878 | ||
b690e96c JB |
7879 | struct intel_quirk { |
7880 | int device; | |
7881 | int subsystem_vendor; | |
7882 | int subsystem_device; | |
7883 | void (*hook)(struct drm_device *dev); | |
7884 | }; | |
7885 | ||
c43b5634 | 7886 | static struct intel_quirk intel_quirks[] = { |
b690e96c | 7887 | /* HP Mini needs pipe A force quirk (LP: #322104) */ |
0206e353 | 7888 | { 0x27ae, 0x103c, 0x361a, quirk_pipea_force }, |
b690e96c | 7889 | |
b690e96c JB |
7890 | /* Toshiba Protege R-205, S-209 needs pipe A force quirk */ |
7891 | { 0x2592, 0x1179, 0x0001, quirk_pipea_force }, | |
7892 | ||
b690e96c JB |
7893 | /* ThinkPad T60 needs pipe A force quirk (bug #16494) */ |
7894 | { 0x2782, 0x17aa, 0x201a, quirk_pipea_force }, | |
7895 | ||
7896 | /* 855 & before need to leave pipe A & dpll A up */ | |
7897 | { 0x3582, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, | |
7898 | { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, | |
dcdaed6e | 7899 | { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, |
435793df KP |
7900 | |
7901 | /* Lenovo U160 cannot use SSC on LVDS */ | |
7902 | { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable }, | |
070d329a MAS |
7903 | |
7904 | /* Sony Vaio Y cannot use SSC on LVDS */ | |
7905 | { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable }, | |
5a15ab5b CE |
7906 | |
7907 | /* Acer Aspire 5734Z must invert backlight brightness */ | |
7908 | { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness }, | |
b690e96c JB |
7909 | }; |
7910 | ||
7911 | static void intel_init_quirks(struct drm_device *dev) | |
7912 | { | |
7913 | struct pci_dev *d = dev->pdev; | |
7914 | int i; | |
7915 | ||
7916 | for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { | |
7917 | struct intel_quirk *q = &intel_quirks[i]; | |
7918 | ||
7919 | if (d->device == q->device && | |
7920 | (d->subsystem_vendor == q->subsystem_vendor || | |
7921 | q->subsystem_vendor == PCI_ANY_ID) && | |
7922 | (d->subsystem_device == q->subsystem_device || | |
7923 | q->subsystem_device == PCI_ANY_ID)) | |
7924 | q->hook(dev); | |
7925 | } | |
7926 | } | |
7927 | ||
9cce37f4 JB |
7928 | /* Disable the VGA plane that we never use */ |
7929 | static void i915_disable_vga(struct drm_device *dev) | |
7930 | { | |
7931 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7932 | u8 sr1; | |
7933 | u32 vga_reg; | |
7934 | ||
7935 | if (HAS_PCH_SPLIT(dev)) | |
7936 | vga_reg = CPU_VGACNTRL; | |
7937 | else | |
7938 | vga_reg = VGACNTRL; | |
7939 | ||
7940 | vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO); | |
3fdcf431 | 7941 | outb(SR01, VGA_SR_INDEX); |
9cce37f4 JB |
7942 | sr1 = inb(VGA_SR_DATA); |
7943 | outb(sr1 | 1<<5, VGA_SR_DATA); | |
7944 | vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); | |
7945 | udelay(300); | |
7946 | ||
7947 | I915_WRITE(vga_reg, VGA_DISP_DISABLE); | |
7948 | POSTING_READ(vga_reg); | |
7949 | } | |
7950 | ||
f817586c DV |
7951 | void intel_modeset_init_hw(struct drm_device *dev) |
7952 | { | |
0232e927 ED |
7953 | /* We attempt to init the necessary power wells early in the initialization |
7954 | * time, so the subsystems that expect power to be enabled can work. | |
7955 | */ | |
7956 | intel_init_power_wells(dev); | |
7957 | ||
a8f78b58 ED |
7958 | intel_prepare_ddi(dev); |
7959 | ||
f817586c DV |
7960 | intel_init_clock_gating(dev); |
7961 | ||
79f5b2c7 | 7962 | mutex_lock(&dev->struct_mutex); |
8090c6b9 | 7963 | intel_enable_gt_powersave(dev); |
79f5b2c7 | 7964 | mutex_unlock(&dev->struct_mutex); |
f817586c DV |
7965 | } |
7966 | ||
79e53945 JB |
7967 | void intel_modeset_init(struct drm_device *dev) |
7968 | { | |
652c393a | 7969 | struct drm_i915_private *dev_priv = dev->dev_private; |
b840d907 | 7970 | int i, ret; |
79e53945 JB |
7971 | |
7972 | drm_mode_config_init(dev); | |
7973 | ||
7974 | dev->mode_config.min_width = 0; | |
7975 | dev->mode_config.min_height = 0; | |
7976 | ||
019d96cb DA |
7977 | dev->mode_config.preferred_depth = 24; |
7978 | dev->mode_config.prefer_shadow = 1; | |
7979 | ||
e6ecefaa | 7980 | dev->mode_config.funcs = &intel_mode_funcs; |
79e53945 | 7981 | |
b690e96c JB |
7982 | intel_init_quirks(dev); |
7983 | ||
1fa61106 ED |
7984 | intel_init_pm(dev); |
7985 | ||
e70236a8 JB |
7986 | intel_init_display(dev); |
7987 | ||
a6c45cf0 CW |
7988 | if (IS_GEN2(dev)) { |
7989 | dev->mode_config.max_width = 2048; | |
7990 | dev->mode_config.max_height = 2048; | |
7991 | } else if (IS_GEN3(dev)) { | |
5e4d6fa7 KP |
7992 | dev->mode_config.max_width = 4096; |
7993 | dev->mode_config.max_height = 4096; | |
79e53945 | 7994 | } else { |
a6c45cf0 CW |
7995 | dev->mode_config.max_width = 8192; |
7996 | dev->mode_config.max_height = 8192; | |
79e53945 | 7997 | } |
dd2757f8 | 7998 | dev->mode_config.fb_base = dev_priv->mm.gtt_base_addr; |
79e53945 | 7999 | |
28c97730 | 8000 | DRM_DEBUG_KMS("%d display pipe%s available.\n", |
a3524f1b | 8001 | dev_priv->num_pipe, dev_priv->num_pipe > 1 ? "s" : ""); |
79e53945 | 8002 | |
a3524f1b | 8003 | for (i = 0; i < dev_priv->num_pipe; i++) { |
79e53945 | 8004 | intel_crtc_init(dev, i); |
00c2064b JB |
8005 | ret = intel_plane_init(dev, i); |
8006 | if (ret) | |
8007 | DRM_DEBUG_KMS("plane %d init failed: %d\n", i, ret); | |
79e53945 JB |
8008 | } |
8009 | ||
ee7b9f93 JB |
8010 | intel_pch_pll_init(dev); |
8011 | ||
9cce37f4 JB |
8012 | /* Just disable it once at startup */ |
8013 | i915_disable_vga(dev); | |
79e53945 | 8014 | intel_setup_outputs(dev); |
2c7111db CW |
8015 | } |
8016 | ||
24929352 DV |
8017 | static void |
8018 | intel_connector_break_all_links(struct intel_connector *connector) | |
8019 | { | |
8020 | connector->base.dpms = DRM_MODE_DPMS_OFF; | |
8021 | connector->base.encoder = NULL; | |
8022 | connector->encoder->connectors_active = false; | |
8023 | connector->encoder->base.crtc = NULL; | |
8024 | } | |
8025 | ||
7fad798e DV |
8026 | static void intel_enable_pipe_a(struct drm_device *dev) |
8027 | { | |
8028 | struct intel_connector *connector; | |
8029 | struct drm_connector *crt = NULL; | |
8030 | struct intel_load_detect_pipe load_detect_temp; | |
8031 | ||
8032 | /* We can't just switch on the pipe A, we need to set things up with a | |
8033 | * proper mode and output configuration. As a gross hack, enable pipe A | |
8034 | * by enabling the load detect pipe once. */ | |
8035 | list_for_each_entry(connector, | |
8036 | &dev->mode_config.connector_list, | |
8037 | base.head) { | |
8038 | if (connector->encoder->type == INTEL_OUTPUT_ANALOG) { | |
8039 | crt = &connector->base; | |
8040 | break; | |
8041 | } | |
8042 | } | |
8043 | ||
8044 | if (!crt) | |
8045 | return; | |
8046 | ||
8047 | if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp)) | |
8048 | intel_release_load_detect_pipe(crt, &load_detect_temp); | |
8049 | ||
8050 | ||
8051 | } | |
8052 | ||
24929352 DV |
8053 | static void intel_sanitize_crtc(struct intel_crtc *crtc) |
8054 | { | |
8055 | struct drm_device *dev = crtc->base.dev; | |
8056 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8057 | u32 reg, val; | |
8058 | ||
24929352 DV |
8059 | /* Clear any frame start delays used for debugging left by the BIOS */ |
8060 | reg = PIPECONF(crtc->pipe); | |
8061 | I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK); | |
8062 | ||
8063 | /* We need to sanitize the plane -> pipe mapping first because this will | |
8064 | * disable the crtc (and hence change the state) if it is wrong. */ | |
8065 | if (!HAS_PCH_SPLIT(dev)) { | |
8066 | struct intel_connector *connector; | |
8067 | bool plane; | |
8068 | ||
8069 | reg = DSPCNTR(crtc->plane); | |
8070 | val = I915_READ(reg); | |
8071 | ||
8072 | if ((val & DISPLAY_PLANE_ENABLE) == 0 && | |
8073 | (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe)) | |
8074 | goto ok; | |
8075 | ||
8076 | DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n", | |
8077 | crtc->base.base.id); | |
8078 | ||
8079 | /* Pipe has the wrong plane attached and the plane is active. | |
8080 | * Temporarily change the plane mapping and disable everything | |
8081 | * ... */ | |
8082 | plane = crtc->plane; | |
8083 | crtc->plane = !plane; | |
8084 | dev_priv->display.crtc_disable(&crtc->base); | |
8085 | crtc->plane = plane; | |
8086 | ||
8087 | /* ... and break all links. */ | |
8088 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
8089 | base.head) { | |
8090 | if (connector->encoder->base.crtc != &crtc->base) | |
8091 | continue; | |
8092 | ||
8093 | intel_connector_break_all_links(connector); | |
8094 | } | |
8095 | ||
8096 | WARN_ON(crtc->active); | |
8097 | crtc->base.enabled = false; | |
8098 | } | |
8099 | ok: | |
8100 | ||
7fad798e DV |
8101 | if (dev_priv->quirks & QUIRK_PIPEA_FORCE && |
8102 | crtc->pipe == PIPE_A && !crtc->active) { | |
8103 | /* BIOS forgot to enable pipe A, this mostly happens after | |
8104 | * resume. Force-enable the pipe to fix this, the update_dpms | |
8105 | * call below we restore the pipe to the right state, but leave | |
8106 | * the required bits on. */ | |
8107 | intel_enable_pipe_a(dev); | |
8108 | } | |
8109 | ||
24929352 DV |
8110 | /* Adjust the state of the output pipe according to whether we |
8111 | * have active connectors/encoders. */ | |
8112 | intel_crtc_update_dpms(&crtc->base); | |
8113 | ||
8114 | if (crtc->active != crtc->base.enabled) { | |
8115 | struct intel_encoder *encoder; | |
8116 | ||
8117 | /* This can happen either due to bugs in the get_hw_state | |
8118 | * functions or because the pipe is force-enabled due to the | |
8119 | * pipe A quirk. */ | |
8120 | DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n", | |
8121 | crtc->base.base.id, | |
8122 | crtc->base.enabled ? "enabled" : "disabled", | |
8123 | crtc->active ? "enabled" : "disabled"); | |
8124 | ||
8125 | crtc->base.enabled = crtc->active; | |
8126 | ||
8127 | /* Because we only establish the connector -> encoder -> | |
8128 | * crtc links if something is active, this means the | |
8129 | * crtc is now deactivated. Break the links. connector | |
8130 | * -> encoder links are only establish when things are | |
8131 | * actually up, hence no need to break them. */ | |
8132 | WARN_ON(crtc->active); | |
8133 | ||
8134 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) { | |
8135 | WARN_ON(encoder->connectors_active); | |
8136 | encoder->base.crtc = NULL; | |
8137 | } | |
8138 | } | |
8139 | } | |
8140 | ||
8141 | static void intel_sanitize_encoder(struct intel_encoder *encoder) | |
8142 | { | |
8143 | struct intel_connector *connector; | |
8144 | struct drm_device *dev = encoder->base.dev; | |
8145 | ||
8146 | /* We need to check both for a crtc link (meaning that the | |
8147 | * encoder is active and trying to read from a pipe) and the | |
8148 | * pipe itself being active. */ | |
8149 | bool has_active_crtc = encoder->base.crtc && | |
8150 | to_intel_crtc(encoder->base.crtc)->active; | |
8151 | ||
8152 | if (encoder->connectors_active && !has_active_crtc) { | |
8153 | DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n", | |
8154 | encoder->base.base.id, | |
8155 | drm_get_encoder_name(&encoder->base)); | |
8156 | ||
8157 | /* Connector is active, but has no active pipe. This is | |
8158 | * fallout from our resume register restoring. Disable | |
8159 | * the encoder manually again. */ | |
8160 | if (encoder->base.crtc) { | |
8161 | DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n", | |
8162 | encoder->base.base.id, | |
8163 | drm_get_encoder_name(&encoder->base)); | |
8164 | encoder->disable(encoder); | |
8165 | } | |
8166 | ||
8167 | /* Inconsistent output/port/pipe state happens presumably due to | |
8168 | * a bug in one of the get_hw_state functions. Or someplace else | |
8169 | * in our code, like the register restore mess on resume. Clamp | |
8170 | * things to off as a safer default. */ | |
8171 | list_for_each_entry(connector, | |
8172 | &dev->mode_config.connector_list, | |
8173 | base.head) { | |
8174 | if (connector->encoder != encoder) | |
8175 | continue; | |
8176 | ||
8177 | intel_connector_break_all_links(connector); | |
8178 | } | |
8179 | } | |
8180 | /* Enabled encoders without active connectors will be fixed in | |
8181 | * the crtc fixup. */ | |
8182 | } | |
8183 | ||
8184 | /* Scan out the current hw modeset state, sanitizes it and maps it into the drm | |
8185 | * and i915 state tracking structures. */ | |
8186 | void intel_modeset_setup_hw_state(struct drm_device *dev) | |
8187 | { | |
8188 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8189 | enum pipe pipe; | |
8190 | u32 tmp; | |
8191 | struct intel_crtc *crtc; | |
8192 | struct intel_encoder *encoder; | |
8193 | struct intel_connector *connector; | |
8194 | ||
8195 | for_each_pipe(pipe) { | |
8196 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); | |
8197 | ||
8198 | tmp = I915_READ(PIPECONF(pipe)); | |
8199 | if (tmp & PIPECONF_ENABLE) | |
8200 | crtc->active = true; | |
8201 | else | |
8202 | crtc->active = false; | |
8203 | ||
8204 | crtc->base.enabled = crtc->active; | |
8205 | ||
8206 | DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n", | |
8207 | crtc->base.base.id, | |
8208 | crtc->active ? "enabled" : "disabled"); | |
8209 | } | |
8210 | ||
8211 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
8212 | base.head) { | |
8213 | pipe = 0; | |
8214 | ||
8215 | if (encoder->get_hw_state(encoder, &pipe)) { | |
8216 | encoder->base.crtc = | |
8217 | dev_priv->pipe_to_crtc_mapping[pipe]; | |
8218 | } else { | |
8219 | encoder->base.crtc = NULL; | |
8220 | } | |
8221 | ||
8222 | encoder->connectors_active = false; | |
8223 | DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe=%i\n", | |
8224 | encoder->base.base.id, | |
8225 | drm_get_encoder_name(&encoder->base), | |
8226 | encoder->base.crtc ? "enabled" : "disabled", | |
8227 | pipe); | |
8228 | } | |
8229 | ||
8230 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
8231 | base.head) { | |
8232 | if (connector->get_hw_state(connector)) { | |
8233 | connector->base.dpms = DRM_MODE_DPMS_ON; | |
8234 | connector->encoder->connectors_active = true; | |
8235 | connector->base.encoder = &connector->encoder->base; | |
8236 | } else { | |
8237 | connector->base.dpms = DRM_MODE_DPMS_OFF; | |
8238 | connector->base.encoder = NULL; | |
8239 | } | |
8240 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n", | |
8241 | connector->base.base.id, | |
8242 | drm_get_connector_name(&connector->base), | |
8243 | connector->base.encoder ? "enabled" : "disabled"); | |
8244 | } | |
8245 | ||
8246 | /* HW state is read out, now we need to sanitize this mess. */ | |
8247 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, | |
8248 | base.head) { | |
8249 | intel_sanitize_encoder(encoder); | |
8250 | } | |
8251 | ||
8252 | for_each_pipe(pipe) { | |
8253 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); | |
8254 | intel_sanitize_crtc(crtc); | |
8255 | } | |
9a935856 DV |
8256 | |
8257 | intel_modeset_update_staged_output_state(dev); | |
8af6cf88 DV |
8258 | |
8259 | intel_modeset_check_state(dev); | |
24929352 DV |
8260 | } |
8261 | ||
2c7111db CW |
8262 | void intel_modeset_gem_init(struct drm_device *dev) |
8263 | { | |
1833b134 | 8264 | intel_modeset_init_hw(dev); |
02e792fb DV |
8265 | |
8266 | intel_setup_overlay(dev); | |
24929352 DV |
8267 | |
8268 | intel_modeset_setup_hw_state(dev); | |
79e53945 JB |
8269 | } |
8270 | ||
8271 | void intel_modeset_cleanup(struct drm_device *dev) | |
8272 | { | |
652c393a JB |
8273 | struct drm_i915_private *dev_priv = dev->dev_private; |
8274 | struct drm_crtc *crtc; | |
8275 | struct intel_crtc *intel_crtc; | |
8276 | ||
f87ea761 | 8277 | drm_kms_helper_poll_fini(dev); |
652c393a JB |
8278 | mutex_lock(&dev->struct_mutex); |
8279 | ||
723bfd70 JB |
8280 | intel_unregister_dsm_handler(); |
8281 | ||
8282 | ||
652c393a JB |
8283 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
8284 | /* Skip inactive CRTCs */ | |
8285 | if (!crtc->fb) | |
8286 | continue; | |
8287 | ||
8288 | intel_crtc = to_intel_crtc(crtc); | |
3dec0095 | 8289 | intel_increase_pllclock(crtc); |
652c393a JB |
8290 | } |
8291 | ||
973d04f9 | 8292 | intel_disable_fbc(dev); |
e70236a8 | 8293 | |
8090c6b9 | 8294 | intel_disable_gt_powersave(dev); |
0cdab21f | 8295 | |
930ebb46 DV |
8296 | ironlake_teardown_rc6(dev); |
8297 | ||
57f350b6 JB |
8298 | if (IS_VALLEYVIEW(dev)) |
8299 | vlv_init_dpio(dev); | |
8300 | ||
69341a5e KH |
8301 | mutex_unlock(&dev->struct_mutex); |
8302 | ||
6c0d9350 DV |
8303 | /* Disable the irq before mode object teardown, for the irq might |
8304 | * enqueue unpin/hotplug work. */ | |
8305 | drm_irq_uninstall(dev); | |
8306 | cancel_work_sync(&dev_priv->hotplug_work); | |
c6a828d3 | 8307 | cancel_work_sync(&dev_priv->rps.work); |
6c0d9350 | 8308 | |
1630fe75 CW |
8309 | /* flush any delayed tasks or pending work */ |
8310 | flush_scheduled_work(); | |
8311 | ||
79e53945 JB |
8312 | drm_mode_config_cleanup(dev); |
8313 | } | |
8314 | ||
f1c79df3 ZW |
8315 | /* |
8316 | * Return which encoder is currently attached for connector. | |
8317 | */ | |
df0e9248 | 8318 | struct drm_encoder *intel_best_encoder(struct drm_connector *connector) |
79e53945 | 8319 | { |
df0e9248 CW |
8320 | return &intel_attached_encoder(connector)->base; |
8321 | } | |
f1c79df3 | 8322 | |
df0e9248 CW |
8323 | void intel_connector_attach_encoder(struct intel_connector *connector, |
8324 | struct intel_encoder *encoder) | |
8325 | { | |
8326 | connector->encoder = encoder; | |
8327 | drm_mode_connector_attach_encoder(&connector->base, | |
8328 | &encoder->base); | |
79e53945 | 8329 | } |
28d52043 DA |
8330 | |
8331 | /* | |
8332 | * set vga decode state - true == enable VGA decode | |
8333 | */ | |
8334 | int intel_modeset_vga_set_state(struct drm_device *dev, bool state) | |
8335 | { | |
8336 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8337 | u16 gmch_ctrl; | |
8338 | ||
8339 | pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl); | |
8340 | if (state) | |
8341 | gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE; | |
8342 | else | |
8343 | gmch_ctrl |= INTEL_GMCH_VGA_DISABLE; | |
8344 | pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl); | |
8345 | return 0; | |
8346 | } | |
c4a1d9e4 CW |
8347 | |
8348 | #ifdef CONFIG_DEBUG_FS | |
8349 | #include <linux/seq_file.h> | |
8350 | ||
8351 | struct intel_display_error_state { | |
8352 | struct intel_cursor_error_state { | |
8353 | u32 control; | |
8354 | u32 position; | |
8355 | u32 base; | |
8356 | u32 size; | |
52331309 | 8357 | } cursor[I915_MAX_PIPES]; |
c4a1d9e4 CW |
8358 | |
8359 | struct intel_pipe_error_state { | |
8360 | u32 conf; | |
8361 | u32 source; | |
8362 | ||
8363 | u32 htotal; | |
8364 | u32 hblank; | |
8365 | u32 hsync; | |
8366 | u32 vtotal; | |
8367 | u32 vblank; | |
8368 | u32 vsync; | |
52331309 | 8369 | } pipe[I915_MAX_PIPES]; |
c4a1d9e4 CW |
8370 | |
8371 | struct intel_plane_error_state { | |
8372 | u32 control; | |
8373 | u32 stride; | |
8374 | u32 size; | |
8375 | u32 pos; | |
8376 | u32 addr; | |
8377 | u32 surface; | |
8378 | u32 tile_offset; | |
52331309 | 8379 | } plane[I915_MAX_PIPES]; |
c4a1d9e4 CW |
8380 | }; |
8381 | ||
8382 | struct intel_display_error_state * | |
8383 | intel_display_capture_error_state(struct drm_device *dev) | |
8384 | { | |
0206e353 | 8385 | drm_i915_private_t *dev_priv = dev->dev_private; |
c4a1d9e4 CW |
8386 | struct intel_display_error_state *error; |
8387 | int i; | |
8388 | ||
8389 | error = kmalloc(sizeof(*error), GFP_ATOMIC); | |
8390 | if (error == NULL) | |
8391 | return NULL; | |
8392 | ||
52331309 | 8393 | for_each_pipe(i) { |
c4a1d9e4 CW |
8394 | error->cursor[i].control = I915_READ(CURCNTR(i)); |
8395 | error->cursor[i].position = I915_READ(CURPOS(i)); | |
8396 | error->cursor[i].base = I915_READ(CURBASE(i)); | |
8397 | ||
8398 | error->plane[i].control = I915_READ(DSPCNTR(i)); | |
8399 | error->plane[i].stride = I915_READ(DSPSTRIDE(i)); | |
8400 | error->plane[i].size = I915_READ(DSPSIZE(i)); | |
0206e353 | 8401 | error->plane[i].pos = I915_READ(DSPPOS(i)); |
c4a1d9e4 CW |
8402 | error->plane[i].addr = I915_READ(DSPADDR(i)); |
8403 | if (INTEL_INFO(dev)->gen >= 4) { | |
8404 | error->plane[i].surface = I915_READ(DSPSURF(i)); | |
8405 | error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i)); | |
8406 | } | |
8407 | ||
8408 | error->pipe[i].conf = I915_READ(PIPECONF(i)); | |
8409 | error->pipe[i].source = I915_READ(PIPESRC(i)); | |
8410 | error->pipe[i].htotal = I915_READ(HTOTAL(i)); | |
8411 | error->pipe[i].hblank = I915_READ(HBLANK(i)); | |
8412 | error->pipe[i].hsync = I915_READ(HSYNC(i)); | |
8413 | error->pipe[i].vtotal = I915_READ(VTOTAL(i)); | |
8414 | error->pipe[i].vblank = I915_READ(VBLANK(i)); | |
8415 | error->pipe[i].vsync = I915_READ(VSYNC(i)); | |
8416 | } | |
8417 | ||
8418 | return error; | |
8419 | } | |
8420 | ||
8421 | void | |
8422 | intel_display_print_error_state(struct seq_file *m, | |
8423 | struct drm_device *dev, | |
8424 | struct intel_display_error_state *error) | |
8425 | { | |
52331309 | 8426 | drm_i915_private_t *dev_priv = dev->dev_private; |
c4a1d9e4 CW |
8427 | int i; |
8428 | ||
52331309 DL |
8429 | seq_printf(m, "Num Pipes: %d\n", dev_priv->num_pipe); |
8430 | for_each_pipe(i) { | |
c4a1d9e4 CW |
8431 | seq_printf(m, "Pipe [%d]:\n", i); |
8432 | seq_printf(m, " CONF: %08x\n", error->pipe[i].conf); | |
8433 | seq_printf(m, " SRC: %08x\n", error->pipe[i].source); | |
8434 | seq_printf(m, " HTOTAL: %08x\n", error->pipe[i].htotal); | |
8435 | seq_printf(m, " HBLANK: %08x\n", error->pipe[i].hblank); | |
8436 | seq_printf(m, " HSYNC: %08x\n", error->pipe[i].hsync); | |
8437 | seq_printf(m, " VTOTAL: %08x\n", error->pipe[i].vtotal); | |
8438 | seq_printf(m, " VBLANK: %08x\n", error->pipe[i].vblank); | |
8439 | seq_printf(m, " VSYNC: %08x\n", error->pipe[i].vsync); | |
8440 | ||
8441 | seq_printf(m, "Plane [%d]:\n", i); | |
8442 | seq_printf(m, " CNTR: %08x\n", error->plane[i].control); | |
8443 | seq_printf(m, " STRIDE: %08x\n", error->plane[i].stride); | |
8444 | seq_printf(m, " SIZE: %08x\n", error->plane[i].size); | |
8445 | seq_printf(m, " POS: %08x\n", error->plane[i].pos); | |
8446 | seq_printf(m, " ADDR: %08x\n", error->plane[i].addr); | |
8447 | if (INTEL_INFO(dev)->gen >= 4) { | |
8448 | seq_printf(m, " SURF: %08x\n", error->plane[i].surface); | |
8449 | seq_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset); | |
8450 | } | |
8451 | ||
8452 | seq_printf(m, "Cursor [%d]:\n", i); | |
8453 | seq_printf(m, " CNTR: %08x\n", error->cursor[i].control); | |
8454 | seq_printf(m, " POS: %08x\n", error->cursor[i].position); | |
8455 | seq_printf(m, " BASE: %08x\n", error->cursor[i].base); | |
8456 | } | |
8457 | } | |
8458 | #endif |