]>
Commit | Line | Data |
---|---|---|
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 CW |
629 | struct drm_device *dev = crtc->dev; |
630 | struct drm_mode_config *mode_config = &dev->mode_config; | |
631 | struct intel_encoder *encoder; | |
632 | ||
633 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) | |
634 | if (encoder->base.crtc == crtc && encoder->type == type) | |
635 | return true; | |
636 | ||
637 | return false; | |
79e53945 JB |
638 | } |
639 | ||
7c04d1d9 | 640 | #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) |
79e53945 JB |
641 | /** |
642 | * Returns whether the given set of divisors are valid for a given refclk with | |
643 | * the given connectors. | |
644 | */ | |
645 | ||
1b894b59 CW |
646 | static bool intel_PLL_is_valid(struct drm_device *dev, |
647 | const intel_limit_t *limit, | |
648 | const intel_clock_t *clock) | |
79e53945 | 649 | { |
79e53945 | 650 | if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1) |
0206e353 | 651 | INTELPllInvalid("p1 out of range\n"); |
79e53945 | 652 | if (clock->p < limit->p.min || limit->p.max < clock->p) |
0206e353 | 653 | INTELPllInvalid("p out of range\n"); |
79e53945 | 654 | if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2) |
0206e353 | 655 | INTELPllInvalid("m2 out of range\n"); |
79e53945 | 656 | if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1) |
0206e353 | 657 | INTELPllInvalid("m1 out of range\n"); |
f2b115e6 | 658 | if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev)) |
0206e353 | 659 | INTELPllInvalid("m1 <= m2\n"); |
79e53945 | 660 | if (clock->m < limit->m.min || limit->m.max < clock->m) |
0206e353 | 661 | INTELPllInvalid("m out of range\n"); |
79e53945 | 662 | if (clock->n < limit->n.min || limit->n.max < clock->n) |
0206e353 | 663 | INTELPllInvalid("n out of range\n"); |
79e53945 | 664 | if (clock->vco < limit->vco.min || limit->vco.max < clock->vco) |
0206e353 | 665 | INTELPllInvalid("vco out of range\n"); |
79e53945 JB |
666 | /* XXX: We may need to be checking "Dot clock" depending on the multiplier, |
667 | * connector, etc., rather than just a single range. | |
668 | */ | |
669 | if (clock->dot < limit->dot.min || limit->dot.max < clock->dot) | |
0206e353 | 670 | INTELPllInvalid("dot out of range\n"); |
79e53945 JB |
671 | |
672 | return true; | |
673 | } | |
674 | ||
d4906093 ML |
675 | static bool |
676 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
677 | int target, int refclk, intel_clock_t *match_clock, |
678 | intel_clock_t *best_clock) | |
d4906093 | 679 | |
79e53945 JB |
680 | { |
681 | struct drm_device *dev = crtc->dev; | |
682 | struct drm_i915_private *dev_priv = dev->dev_private; | |
683 | intel_clock_t clock; | |
79e53945 JB |
684 | int err = target; |
685 | ||
bc5e5718 | 686 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && |
832cc28d | 687 | (I915_READ(LVDS)) != 0) { |
79e53945 JB |
688 | /* |
689 | * For LVDS, if the panel is on, just rely on its current | |
690 | * settings for dual-channel. We haven't figured out how to | |
691 | * reliably set up different single/dual channel state, if we | |
692 | * even can. | |
693 | */ | |
b0354385 | 694 | if (is_dual_link_lvds(dev_priv, LVDS)) |
79e53945 JB |
695 | clock.p2 = limit->p2.p2_fast; |
696 | else | |
697 | clock.p2 = limit->p2.p2_slow; | |
698 | } else { | |
699 | if (target < limit->p2.dot_limit) | |
700 | clock.p2 = limit->p2.p2_slow; | |
701 | else | |
702 | clock.p2 = limit->p2.p2_fast; | |
703 | } | |
704 | ||
0206e353 | 705 | memset(best_clock, 0, sizeof(*best_clock)); |
79e53945 | 706 | |
42158660 ZY |
707 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
708 | clock.m1++) { | |
709 | for (clock.m2 = limit->m2.min; | |
710 | clock.m2 <= limit->m2.max; clock.m2++) { | |
f2b115e6 AJ |
711 | /* m1 is always 0 in Pineview */ |
712 | if (clock.m2 >= clock.m1 && !IS_PINEVIEW(dev)) | |
42158660 ZY |
713 | break; |
714 | for (clock.n = limit->n.min; | |
715 | clock.n <= limit->n.max; clock.n++) { | |
716 | for (clock.p1 = limit->p1.min; | |
717 | clock.p1 <= limit->p1.max; clock.p1++) { | |
79e53945 JB |
718 | int this_err; |
719 | ||
2177832f | 720 | intel_clock(dev, refclk, &clock); |
1b894b59 CW |
721 | if (!intel_PLL_is_valid(dev, limit, |
722 | &clock)) | |
79e53945 | 723 | continue; |
cec2f356 SP |
724 | if (match_clock && |
725 | clock.p != match_clock->p) | |
726 | continue; | |
79e53945 JB |
727 | |
728 | this_err = abs(clock.dot - target); | |
729 | if (this_err < err) { | |
730 | *best_clock = clock; | |
731 | err = this_err; | |
732 | } | |
733 | } | |
734 | } | |
735 | } | |
736 | } | |
737 | ||
738 | return (err != target); | |
739 | } | |
740 | ||
d4906093 ML |
741 | static bool |
742 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
743 | int target, int refclk, intel_clock_t *match_clock, |
744 | intel_clock_t *best_clock) | |
d4906093 ML |
745 | { |
746 | struct drm_device *dev = crtc->dev; | |
747 | struct drm_i915_private *dev_priv = dev->dev_private; | |
748 | intel_clock_t clock; | |
749 | int max_n; | |
750 | bool found; | |
6ba770dc AJ |
751 | /* approximately equals target * 0.00585 */ |
752 | int err_most = (target >> 8) + (target >> 9); | |
d4906093 ML |
753 | found = false; |
754 | ||
755 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
4547668a ZY |
756 | int lvds_reg; |
757 | ||
c619eed4 | 758 | if (HAS_PCH_SPLIT(dev)) |
4547668a ZY |
759 | lvds_reg = PCH_LVDS; |
760 | else | |
761 | lvds_reg = LVDS; | |
762 | if ((I915_READ(lvds_reg) & LVDS_CLKB_POWER_MASK) == | |
d4906093 ML |
763 | LVDS_CLKB_POWER_UP) |
764 | clock.p2 = limit->p2.p2_fast; | |
765 | else | |
766 | clock.p2 = limit->p2.p2_slow; | |
767 | } else { | |
768 | if (target < limit->p2.dot_limit) | |
769 | clock.p2 = limit->p2.p2_slow; | |
770 | else | |
771 | clock.p2 = limit->p2.p2_fast; | |
772 | } | |
773 | ||
774 | memset(best_clock, 0, sizeof(*best_clock)); | |
775 | max_n = limit->n.max; | |
f77f13e2 | 776 | /* based on hardware requirement, prefer smaller n to precision */ |
d4906093 | 777 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
f77f13e2 | 778 | /* based on hardware requirement, prefere larger m1,m2 */ |
d4906093 ML |
779 | for (clock.m1 = limit->m1.max; |
780 | clock.m1 >= limit->m1.min; clock.m1--) { | |
781 | for (clock.m2 = limit->m2.max; | |
782 | clock.m2 >= limit->m2.min; clock.m2--) { | |
783 | for (clock.p1 = limit->p1.max; | |
784 | clock.p1 >= limit->p1.min; clock.p1--) { | |
785 | int this_err; | |
786 | ||
2177832f | 787 | intel_clock(dev, refclk, &clock); |
1b894b59 CW |
788 | if (!intel_PLL_is_valid(dev, limit, |
789 | &clock)) | |
d4906093 | 790 | continue; |
cec2f356 SP |
791 | if (match_clock && |
792 | clock.p != match_clock->p) | |
793 | continue; | |
1b894b59 CW |
794 | |
795 | this_err = abs(clock.dot - target); | |
d4906093 ML |
796 | if (this_err < err_most) { |
797 | *best_clock = clock; | |
798 | err_most = this_err; | |
799 | max_n = clock.n; | |
800 | found = true; | |
801 | } | |
802 | } | |
803 | } | |
804 | } | |
805 | } | |
2c07245f ZW |
806 | return found; |
807 | } | |
808 | ||
5eb08b69 | 809 | static bool |
f2b115e6 | 810 | intel_find_pll_ironlake_dp(const intel_limit_t *limit, struct drm_crtc *crtc, |
cec2f356 SP |
811 | int target, int refclk, intel_clock_t *match_clock, |
812 | intel_clock_t *best_clock) | |
5eb08b69 ZW |
813 | { |
814 | struct drm_device *dev = crtc->dev; | |
815 | intel_clock_t clock; | |
4547668a | 816 | |
5eb08b69 ZW |
817 | if (target < 200000) { |
818 | clock.n = 1; | |
819 | clock.p1 = 2; | |
820 | clock.p2 = 10; | |
821 | clock.m1 = 12; | |
822 | clock.m2 = 9; | |
823 | } else { | |
824 | clock.n = 2; | |
825 | clock.p1 = 1; | |
826 | clock.p2 = 10; | |
827 | clock.m1 = 14; | |
828 | clock.m2 = 8; | |
829 | } | |
830 | intel_clock(dev, refclk, &clock); | |
831 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); | |
832 | return true; | |
833 | } | |
834 | ||
a4fc5ed6 KP |
835 | /* DisplayPort has only two frequencies, 162MHz and 270MHz */ |
836 | static bool | |
837 | intel_find_pll_g4x_dp(const intel_limit_t *limit, struct drm_crtc *crtc, | |
cec2f356 SP |
838 | int target, int refclk, intel_clock_t *match_clock, |
839 | intel_clock_t *best_clock) | |
a4fc5ed6 | 840 | { |
5eddb70b CW |
841 | intel_clock_t clock; |
842 | if (target < 200000) { | |
843 | clock.p1 = 2; | |
844 | clock.p2 = 10; | |
845 | clock.n = 2; | |
846 | clock.m1 = 23; | |
847 | clock.m2 = 8; | |
848 | } else { | |
849 | clock.p1 = 1; | |
850 | clock.p2 = 10; | |
851 | clock.n = 1; | |
852 | clock.m1 = 14; | |
853 | clock.m2 = 2; | |
854 | } | |
855 | clock.m = 5 * (clock.m1 + 2) + (clock.m2 + 2); | |
856 | clock.p = (clock.p1 * clock.p2); | |
857 | clock.dot = 96000 * clock.m / (clock.n + 2) / clock.p; | |
858 | clock.vco = 0; | |
859 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); | |
860 | return true; | |
a4fc5ed6 | 861 | } |
a0c4da24 JB |
862 | static bool |
863 | intel_vlv_find_best_pll(const intel_limit_t *limit, struct drm_crtc *crtc, | |
864 | int target, int refclk, intel_clock_t *match_clock, | |
865 | intel_clock_t *best_clock) | |
866 | { | |
867 | u32 p1, p2, m1, m2, vco, bestn, bestm1, bestm2, bestp1, bestp2; | |
868 | u32 m, n, fastclk; | |
869 | u32 updrate, minupdate, fracbits, p; | |
870 | unsigned long bestppm, ppm, absppm; | |
871 | int dotclk, flag; | |
872 | ||
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)) | |
ab7ad7f6 KP |
1009 | DRM_DEBUG_KMS("pipe_off wait timed out\n"); |
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)) | |
1027 | DRM_DEBUG_KMS("pipe_off wait timed out\n"); | |
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 DV |
1378 | |
1379 | WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_PIPE_B_SELECT), | |
1380 | "IBX PCH dp port still using transcoder B\n"); | |
291906f1 JB |
1381 | } |
1382 | ||
1383 | static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv, | |
1384 | enum pipe pipe, int reg) | |
1385 | { | |
47a05eca | 1386 | u32 val = I915_READ(reg); |
1519b995 | 1387 | WARN(hdmi_pipe_enabled(dev_priv, val, pipe), |
23c99e77 | 1388 | "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1389 | reg, pipe_name(pipe)); |
de9a35ab DV |
1390 | |
1391 | WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_PIPE_B_SELECT), | |
1392 | "IBX PCH hdmi port still using transcoder B\n"); | |
291906f1 JB |
1393 | } |
1394 | ||
1395 | static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, | |
1396 | enum pipe pipe) | |
1397 | { | |
1398 | int reg; | |
1399 | u32 val; | |
291906f1 | 1400 | |
f0575e92 KP |
1401 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); |
1402 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); | |
1403 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); | |
291906f1 JB |
1404 | |
1405 | reg = PCH_ADPA; | |
1406 | val = I915_READ(reg); | |
1519b995 | 1407 | WARN(adpa_pipe_enabled(dev_priv, val, pipe), |
291906f1 | 1408 | "PCH VGA enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1409 | pipe_name(pipe)); |
291906f1 JB |
1410 | |
1411 | reg = PCH_LVDS; | |
1412 | val = I915_READ(reg); | |
1519b995 | 1413 | WARN(lvds_pipe_enabled(dev_priv, val, pipe), |
291906f1 | 1414 | "PCH LVDS enabled on transcoder %c, should be disabled\n", |
9db4a9c7 | 1415 | pipe_name(pipe)); |
291906f1 JB |
1416 | |
1417 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMIB); | |
1418 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMIC); | |
1419 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMID); | |
1420 | } | |
1421 | ||
63d7bbe9 JB |
1422 | /** |
1423 | * intel_enable_pll - enable a PLL | |
1424 | * @dev_priv: i915 private structure | |
1425 | * @pipe: pipe PLL to enable | |
1426 | * | |
1427 | * Enable @pipe's PLL so we can start pumping pixels from a plane. Check to | |
1428 | * make sure the PLL reg is writable first though, since the panel write | |
1429 | * protect mechanism may be enabled. | |
1430 | * | |
1431 | * Note! This is for pre-ILK only. | |
1432 | */ | |
1433 | static void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) | |
1434 | { | |
1435 | int reg; | |
1436 | u32 val; | |
1437 | ||
1438 | /* No really, not for ILK+ */ | |
a0c4da24 | 1439 | BUG_ON(!IS_VALLEYVIEW(dev_priv->dev) && dev_priv->info->gen >= 5); |
63d7bbe9 JB |
1440 | |
1441 | /* PLL is protected by panel, make sure we can write it */ | |
1442 | if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev)) | |
1443 | assert_panel_unlocked(dev_priv, pipe); | |
1444 | ||
1445 | reg = DPLL(pipe); | |
1446 | val = I915_READ(reg); | |
1447 | val |= DPLL_VCO_ENABLE; | |
1448 | ||
1449 | /* We do this three times for luck */ | |
1450 | I915_WRITE(reg, val); | |
1451 | POSTING_READ(reg); | |
1452 | udelay(150); /* wait for warmup */ | |
1453 | I915_WRITE(reg, val); | |
1454 | POSTING_READ(reg); | |
1455 | udelay(150); /* wait for warmup */ | |
1456 | I915_WRITE(reg, val); | |
1457 | POSTING_READ(reg); | |
1458 | udelay(150); /* wait for warmup */ | |
1459 | } | |
1460 | ||
1461 | /** | |
1462 | * intel_disable_pll - disable a PLL | |
1463 | * @dev_priv: i915 private structure | |
1464 | * @pipe: pipe PLL to disable | |
1465 | * | |
1466 | * Disable the PLL for @pipe, making sure the pipe is off first. | |
1467 | * | |
1468 | * Note! This is for pre-ILK only. | |
1469 | */ | |
1470 | static void intel_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) | |
1471 | { | |
1472 | int reg; | |
1473 | u32 val; | |
1474 | ||
1475 | /* Don't disable pipe A or pipe A PLLs if needed */ | |
1476 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) | |
1477 | return; | |
1478 | ||
1479 | /* Make sure the pipe isn't still relying on us */ | |
1480 | assert_pipe_disabled(dev_priv, pipe); | |
1481 | ||
1482 | reg = DPLL(pipe); | |
1483 | val = I915_READ(reg); | |
1484 | val &= ~DPLL_VCO_ENABLE; | |
1485 | I915_WRITE(reg, val); | |
1486 | POSTING_READ(reg); | |
1487 | } | |
1488 | ||
a416edef ED |
1489 | /* SBI access */ |
1490 | static void | |
1491 | intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value) | |
1492 | { | |
1493 | unsigned long flags; | |
1494 | ||
1495 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
39fb50f6 | 1496 | if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_BUSY) == 0, |
a416edef ED |
1497 | 100)) { |
1498 | DRM_ERROR("timeout waiting for SBI to become ready\n"); | |
1499 | goto out_unlock; | |
1500 | } | |
1501 | ||
1502 | I915_WRITE(SBI_ADDR, | |
1503 | (reg << 16)); | |
1504 | I915_WRITE(SBI_DATA, | |
1505 | value); | |
1506 | I915_WRITE(SBI_CTL_STAT, | |
1507 | SBI_BUSY | | |
1508 | SBI_CTL_OP_CRWR); | |
1509 | ||
39fb50f6 | 1510 | if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0, |
a416edef ED |
1511 | 100)) { |
1512 | DRM_ERROR("timeout waiting for SBI to complete write transaction\n"); | |
1513 | goto out_unlock; | |
1514 | } | |
1515 | ||
1516 | out_unlock: | |
1517 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
1518 | } | |
1519 | ||
1520 | static u32 | |
1521 | intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg) | |
1522 | { | |
1523 | unsigned long flags; | |
39fb50f6 | 1524 | u32 value = 0; |
a416edef ED |
1525 | |
1526 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); | |
39fb50f6 | 1527 | if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_BUSY) == 0, |
a416edef ED |
1528 | 100)) { |
1529 | DRM_ERROR("timeout waiting for SBI to become ready\n"); | |
1530 | goto out_unlock; | |
1531 | } | |
1532 | ||
1533 | I915_WRITE(SBI_ADDR, | |
1534 | (reg << 16)); | |
1535 | I915_WRITE(SBI_CTL_STAT, | |
1536 | SBI_BUSY | | |
1537 | SBI_CTL_OP_CRRD); | |
1538 | ||
39fb50f6 | 1539 | if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0, |
a416edef ED |
1540 | 100)) { |
1541 | DRM_ERROR("timeout waiting for SBI to complete read transaction\n"); | |
1542 | goto out_unlock; | |
1543 | } | |
1544 | ||
1545 | value = I915_READ(SBI_DATA); | |
1546 | ||
1547 | out_unlock: | |
1548 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); | |
1549 | return value; | |
1550 | } | |
1551 | ||
92f2584a JB |
1552 | /** |
1553 | * intel_enable_pch_pll - enable PCH PLL | |
1554 | * @dev_priv: i915 private structure | |
1555 | * @pipe: pipe PLL to enable | |
1556 | * | |
1557 | * The PCH PLL needs to be enabled before the PCH transcoder, since it | |
1558 | * drives the transcoder clock. | |
1559 | */ | |
ee7b9f93 | 1560 | static void intel_enable_pch_pll(struct intel_crtc *intel_crtc) |
92f2584a | 1561 | { |
ee7b9f93 | 1562 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
48da64a8 | 1563 | struct intel_pch_pll *pll; |
92f2584a JB |
1564 | int reg; |
1565 | u32 val; | |
1566 | ||
48da64a8 | 1567 | /* PCH PLLs only available on ILK, SNB and IVB */ |
92f2584a | 1568 | BUG_ON(dev_priv->info->gen < 5); |
48da64a8 CW |
1569 | pll = intel_crtc->pch_pll; |
1570 | if (pll == NULL) | |
1571 | return; | |
1572 | ||
1573 | if (WARN_ON(pll->refcount == 0)) | |
1574 | return; | |
ee7b9f93 JB |
1575 | |
1576 | DRM_DEBUG_KMS("enable PCH PLL %x (active %d, on? %d)for crtc %d\n", | |
1577 | pll->pll_reg, pll->active, pll->on, | |
1578 | intel_crtc->base.base.id); | |
92f2584a JB |
1579 | |
1580 | /* PCH refclock must be enabled first */ | |
1581 | assert_pch_refclk_enabled(dev_priv); | |
1582 | ||
ee7b9f93 | 1583 | if (pll->active++ && pll->on) { |
92b27b08 | 1584 | assert_pch_pll_enabled(dev_priv, pll, NULL); |
ee7b9f93 JB |
1585 | return; |
1586 | } | |
1587 | ||
1588 | DRM_DEBUG_KMS("enabling PCH PLL %x\n", pll->pll_reg); | |
1589 | ||
1590 | reg = pll->pll_reg; | |
92f2584a JB |
1591 | val = I915_READ(reg); |
1592 | val |= DPLL_VCO_ENABLE; | |
1593 | I915_WRITE(reg, val); | |
1594 | POSTING_READ(reg); | |
1595 | udelay(200); | |
ee7b9f93 JB |
1596 | |
1597 | pll->on = true; | |
92f2584a JB |
1598 | } |
1599 | ||
ee7b9f93 | 1600 | static void intel_disable_pch_pll(struct intel_crtc *intel_crtc) |
92f2584a | 1601 | { |
ee7b9f93 JB |
1602 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
1603 | struct intel_pch_pll *pll = intel_crtc->pch_pll; | |
92f2584a | 1604 | int reg; |
ee7b9f93 | 1605 | u32 val; |
4c609cb8 | 1606 | |
92f2584a JB |
1607 | /* PCH only available on ILK+ */ |
1608 | BUG_ON(dev_priv->info->gen < 5); | |
ee7b9f93 JB |
1609 | if (pll == NULL) |
1610 | return; | |
92f2584a | 1611 | |
48da64a8 CW |
1612 | if (WARN_ON(pll->refcount == 0)) |
1613 | return; | |
7a419866 | 1614 | |
ee7b9f93 JB |
1615 | DRM_DEBUG_KMS("disable PCH PLL %x (active %d, on? %d) for crtc %d\n", |
1616 | pll->pll_reg, pll->active, pll->on, | |
1617 | intel_crtc->base.base.id); | |
7a419866 | 1618 | |
48da64a8 | 1619 | if (WARN_ON(pll->active == 0)) { |
92b27b08 | 1620 | assert_pch_pll_disabled(dev_priv, pll, NULL); |
48da64a8 CW |
1621 | return; |
1622 | } | |
1623 | ||
ee7b9f93 | 1624 | if (--pll->active) { |
92b27b08 | 1625 | assert_pch_pll_enabled(dev_priv, pll, NULL); |
7a419866 | 1626 | return; |
ee7b9f93 JB |
1627 | } |
1628 | ||
1629 | DRM_DEBUG_KMS("disabling PCH PLL %x\n", pll->pll_reg); | |
1630 | ||
1631 | /* Make sure transcoder isn't still depending on us */ | |
1632 | assert_transcoder_disabled(dev_priv, intel_crtc->pipe); | |
7a419866 | 1633 | |
ee7b9f93 | 1634 | reg = pll->pll_reg; |
92f2584a JB |
1635 | val = I915_READ(reg); |
1636 | val &= ~DPLL_VCO_ENABLE; | |
1637 | I915_WRITE(reg, val); | |
1638 | POSTING_READ(reg); | |
1639 | udelay(200); | |
ee7b9f93 JB |
1640 | |
1641 | pll->on = false; | |
92f2584a JB |
1642 | } |
1643 | ||
040484af JB |
1644 | static void intel_enable_transcoder(struct drm_i915_private *dev_priv, |
1645 | enum pipe pipe) | |
1646 | { | |
1647 | int reg; | |
5f7f726d | 1648 | u32 val, pipeconf_val; |
7c26e5c6 | 1649 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
040484af JB |
1650 | |
1651 | /* PCH only available on ILK+ */ | |
1652 | BUG_ON(dev_priv->info->gen < 5); | |
1653 | ||
1654 | /* Make sure PCH DPLL is enabled */ | |
92b27b08 CW |
1655 | assert_pch_pll_enabled(dev_priv, |
1656 | to_intel_crtc(crtc)->pch_pll, | |
1657 | to_intel_crtc(crtc)); | |
040484af JB |
1658 | |
1659 | /* FDI must be feeding us bits for PCH ports */ | |
1660 | assert_fdi_tx_enabled(dev_priv, pipe); | |
1661 | assert_fdi_rx_enabled(dev_priv, pipe); | |
1662 | ||
59c859d6 ED |
1663 | if (IS_HASWELL(dev_priv->dev) && pipe > 0) { |
1664 | DRM_ERROR("Attempting to enable transcoder on Haswell with pipe > 0\n"); | |
1665 | return; | |
1666 | } | |
040484af JB |
1667 | reg = TRANSCONF(pipe); |
1668 | val = I915_READ(reg); | |
5f7f726d | 1669 | pipeconf_val = I915_READ(PIPECONF(pipe)); |
e9bcff5c JB |
1670 | |
1671 | if (HAS_PCH_IBX(dev_priv->dev)) { | |
1672 | /* | |
1673 | * make the BPC in transcoder be consistent with | |
1674 | * that in pipeconf reg. | |
1675 | */ | |
1676 | val &= ~PIPE_BPC_MASK; | |
5f7f726d | 1677 | val |= pipeconf_val & PIPE_BPC_MASK; |
e9bcff5c | 1678 | } |
5f7f726d PZ |
1679 | |
1680 | val &= ~TRANS_INTERLACE_MASK; | |
1681 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK) | |
7c26e5c6 PZ |
1682 | if (HAS_PCH_IBX(dev_priv->dev) && |
1683 | intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) | |
1684 | val |= TRANS_LEGACY_INTERLACED_ILK; | |
1685 | else | |
1686 | val |= TRANS_INTERLACED; | |
5f7f726d PZ |
1687 | else |
1688 | val |= TRANS_PROGRESSIVE; | |
1689 | ||
040484af JB |
1690 | I915_WRITE(reg, val | TRANS_ENABLE); |
1691 | if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100)) | |
1692 | DRM_ERROR("failed to enable transcoder %d\n", pipe); | |
1693 | } | |
1694 | ||
1695 | static void intel_disable_transcoder(struct drm_i915_private *dev_priv, | |
1696 | enum pipe pipe) | |
1697 | { | |
1698 | int reg; | |
1699 | u32 val; | |
1700 | ||
1701 | /* FDI relies on the transcoder */ | |
1702 | assert_fdi_tx_disabled(dev_priv, pipe); | |
1703 | assert_fdi_rx_disabled(dev_priv, pipe); | |
1704 | ||
291906f1 JB |
1705 | /* Ports must be off as well */ |
1706 | assert_pch_ports_disabled(dev_priv, pipe); | |
1707 | ||
040484af JB |
1708 | reg = TRANSCONF(pipe); |
1709 | val = I915_READ(reg); | |
1710 | val &= ~TRANS_ENABLE; | |
1711 | I915_WRITE(reg, val); | |
1712 | /* wait for PCH transcoder off, transcoder state */ | |
1713 | if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50)) | |
4c9c18c2 | 1714 | DRM_ERROR("failed to disable transcoder %d\n", pipe); |
040484af JB |
1715 | } |
1716 | ||
b24e7179 | 1717 | /** |
309cfea8 | 1718 | * intel_enable_pipe - enable a pipe, asserting requirements |
b24e7179 JB |
1719 | * @dev_priv: i915 private structure |
1720 | * @pipe: pipe to enable | |
040484af | 1721 | * @pch_port: on ILK+, is this pipe driving a PCH port or not |
b24e7179 JB |
1722 | * |
1723 | * Enable @pipe, making sure that various hardware specific requirements | |
1724 | * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc. | |
1725 | * | |
1726 | * @pipe should be %PIPE_A or %PIPE_B. | |
1727 | * | |
1728 | * Will wait until the pipe is actually running (i.e. first vblank) before | |
1729 | * returning. | |
1730 | */ | |
040484af JB |
1731 | static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, |
1732 | bool pch_port) | |
b24e7179 JB |
1733 | { |
1734 | int reg; | |
1735 | u32 val; | |
1736 | ||
1737 | /* | |
1738 | * A pipe without a PLL won't actually be able to drive bits from | |
1739 | * a plane. On ILK+ the pipe PLLs are integrated, so we don't | |
1740 | * need the check. | |
1741 | */ | |
1742 | if (!HAS_PCH_SPLIT(dev_priv->dev)) | |
1743 | assert_pll_enabled(dev_priv, pipe); | |
040484af JB |
1744 | else { |
1745 | if (pch_port) { | |
1746 | /* if driving the PCH, we need FDI enabled */ | |
1747 | assert_fdi_rx_pll_enabled(dev_priv, pipe); | |
1748 | assert_fdi_tx_pll_enabled(dev_priv, pipe); | |
1749 | } | |
1750 | /* FIXME: assert CPU port conditions for SNB+ */ | |
1751 | } | |
b24e7179 JB |
1752 | |
1753 | reg = PIPECONF(pipe); | |
1754 | val = I915_READ(reg); | |
00d70b15 CW |
1755 | if (val & PIPECONF_ENABLE) |
1756 | return; | |
1757 | ||
1758 | I915_WRITE(reg, val | PIPECONF_ENABLE); | |
b24e7179 JB |
1759 | intel_wait_for_vblank(dev_priv->dev, pipe); |
1760 | } | |
1761 | ||
1762 | /** | |
309cfea8 | 1763 | * intel_disable_pipe - disable a pipe, asserting requirements |
b24e7179 JB |
1764 | * @dev_priv: i915 private structure |
1765 | * @pipe: pipe to disable | |
1766 | * | |
1767 | * Disable @pipe, making sure that various hardware specific requirements | |
1768 | * are met, if applicable, e.g. plane disabled, panel fitter off, etc. | |
1769 | * | |
1770 | * @pipe should be %PIPE_A or %PIPE_B. | |
1771 | * | |
1772 | * Will wait until the pipe has shut down before returning. | |
1773 | */ | |
1774 | static void intel_disable_pipe(struct drm_i915_private *dev_priv, | |
1775 | enum pipe pipe) | |
1776 | { | |
1777 | int reg; | |
1778 | u32 val; | |
1779 | ||
1780 | /* | |
1781 | * Make sure planes won't keep trying to pump pixels to us, | |
1782 | * or we might hang the display. | |
1783 | */ | |
1784 | assert_planes_disabled(dev_priv, pipe); | |
1785 | ||
1786 | /* Don't disable pipe A or pipe A PLLs if needed */ | |
1787 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) | |
1788 | return; | |
1789 | ||
1790 | reg = PIPECONF(pipe); | |
1791 | val = I915_READ(reg); | |
00d70b15 CW |
1792 | if ((val & PIPECONF_ENABLE) == 0) |
1793 | return; | |
1794 | ||
1795 | I915_WRITE(reg, val & ~PIPECONF_ENABLE); | |
b24e7179 JB |
1796 | intel_wait_for_pipe_off(dev_priv->dev, pipe); |
1797 | } | |
1798 | ||
d74362c9 KP |
1799 | /* |
1800 | * Plane regs are double buffered, going from enabled->disabled needs a | |
1801 | * trigger in order to latch. The display address reg provides this. | |
1802 | */ | |
6f1d69b0 | 1803 | void intel_flush_display_plane(struct drm_i915_private *dev_priv, |
d74362c9 KP |
1804 | enum plane plane) |
1805 | { | |
1806 | I915_WRITE(DSPADDR(plane), I915_READ(DSPADDR(plane))); | |
1807 | I915_WRITE(DSPSURF(plane), I915_READ(DSPSURF(plane))); | |
1808 | } | |
1809 | ||
b24e7179 JB |
1810 | /** |
1811 | * intel_enable_plane - enable a display plane on a given pipe | |
1812 | * @dev_priv: i915 private structure | |
1813 | * @plane: plane to enable | |
1814 | * @pipe: pipe being fed | |
1815 | * | |
1816 | * Enable @plane on @pipe, making sure that @pipe is running first. | |
1817 | */ | |
1818 | static void intel_enable_plane(struct drm_i915_private *dev_priv, | |
1819 | enum plane plane, enum pipe pipe) | |
1820 | { | |
1821 | int reg; | |
1822 | u32 val; | |
1823 | ||
1824 | /* If the pipe isn't enabled, we can't pump pixels and may hang */ | |
1825 | assert_pipe_enabled(dev_priv, pipe); | |
1826 | ||
1827 | reg = DSPCNTR(plane); | |
1828 | val = I915_READ(reg); | |
00d70b15 CW |
1829 | if (val & DISPLAY_PLANE_ENABLE) |
1830 | return; | |
1831 | ||
1832 | I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE); | |
d74362c9 | 1833 | intel_flush_display_plane(dev_priv, plane); |
b24e7179 JB |
1834 | intel_wait_for_vblank(dev_priv->dev, pipe); |
1835 | } | |
1836 | ||
b24e7179 JB |
1837 | /** |
1838 | * intel_disable_plane - disable a display plane | |
1839 | * @dev_priv: i915 private structure | |
1840 | * @plane: plane to disable | |
1841 | * @pipe: pipe consuming the data | |
1842 | * | |
1843 | * Disable @plane; should be an independent operation. | |
1844 | */ | |
1845 | static void intel_disable_plane(struct drm_i915_private *dev_priv, | |
1846 | enum plane plane, enum pipe pipe) | |
1847 | { | |
1848 | int reg; | |
1849 | u32 val; | |
1850 | ||
1851 | reg = DSPCNTR(plane); | |
1852 | val = I915_READ(reg); | |
00d70b15 CW |
1853 | if ((val & DISPLAY_PLANE_ENABLE) == 0) |
1854 | return; | |
1855 | ||
1856 | I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE); | |
b24e7179 JB |
1857 | intel_flush_display_plane(dev_priv, plane); |
1858 | intel_wait_for_vblank(dev_priv->dev, pipe); | |
1859 | } | |
1860 | ||
47a05eca | 1861 | static void disable_pch_dp(struct drm_i915_private *dev_priv, |
f0575e92 | 1862 | enum pipe pipe, int reg, u32 port_sel) |
47a05eca JB |
1863 | { |
1864 | u32 val = I915_READ(reg); | |
4e634389 | 1865 | if (dp_pipe_enabled(dev_priv, pipe, port_sel, val)) { |
f0575e92 | 1866 | DRM_DEBUG_KMS("Disabling pch dp %x on pipe %d\n", reg, pipe); |
47a05eca | 1867 | I915_WRITE(reg, val & ~DP_PORT_EN); |
f0575e92 | 1868 | } |
47a05eca JB |
1869 | } |
1870 | ||
1871 | static void disable_pch_hdmi(struct drm_i915_private *dev_priv, | |
1872 | enum pipe pipe, int reg) | |
1873 | { | |
1874 | u32 val = I915_READ(reg); | |
1519b995 | 1875 | if (hdmi_pipe_enabled(dev_priv, val, pipe)) { |
f0575e92 KP |
1876 | DRM_DEBUG_KMS("Disabling pch HDMI %x on pipe %d\n", |
1877 | reg, pipe); | |
47a05eca | 1878 | I915_WRITE(reg, val & ~PORT_ENABLE); |
f0575e92 | 1879 | } |
47a05eca JB |
1880 | } |
1881 | ||
1882 | /* Disable any ports connected to this transcoder */ | |
1883 | static void intel_disable_pch_ports(struct drm_i915_private *dev_priv, | |
1884 | enum pipe pipe) | |
1885 | { | |
1886 | u32 reg, val; | |
1887 | ||
1888 | val = I915_READ(PCH_PP_CONTROL); | |
1889 | I915_WRITE(PCH_PP_CONTROL, val | PANEL_UNLOCK_REGS); | |
1890 | ||
f0575e92 KP |
1891 | disable_pch_dp(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); |
1892 | disable_pch_dp(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); | |
1893 | disable_pch_dp(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); | |
47a05eca JB |
1894 | |
1895 | reg = PCH_ADPA; | |
1896 | val = I915_READ(reg); | |
1519b995 | 1897 | if (adpa_pipe_enabled(dev_priv, val, pipe)) |
47a05eca JB |
1898 | I915_WRITE(reg, val & ~ADPA_DAC_ENABLE); |
1899 | ||
1900 | reg = PCH_LVDS; | |
1901 | val = I915_READ(reg); | |
1519b995 KP |
1902 | if (lvds_pipe_enabled(dev_priv, val, pipe)) { |
1903 | DRM_DEBUG_KMS("disable lvds on pipe %d val 0x%08x\n", pipe, val); | |
47a05eca JB |
1904 | I915_WRITE(reg, val & ~LVDS_PORT_EN); |
1905 | POSTING_READ(reg); | |
1906 | udelay(100); | |
1907 | } | |
1908 | ||
1909 | disable_pch_hdmi(dev_priv, pipe, HDMIB); | |
1910 | disable_pch_hdmi(dev_priv, pipe, HDMIC); | |
1911 | disable_pch_hdmi(dev_priv, pipe, HDMID); | |
1912 | } | |
1913 | ||
127bd2ac | 1914 | int |
48b956c5 | 1915 | intel_pin_and_fence_fb_obj(struct drm_device *dev, |
05394f39 | 1916 | struct drm_i915_gem_object *obj, |
919926ae | 1917 | struct intel_ring_buffer *pipelined) |
6b95a207 | 1918 | { |
ce453d81 | 1919 | struct drm_i915_private *dev_priv = dev->dev_private; |
6b95a207 KH |
1920 | u32 alignment; |
1921 | int ret; | |
1922 | ||
05394f39 | 1923 | switch (obj->tiling_mode) { |
6b95a207 | 1924 | case I915_TILING_NONE: |
534843da CW |
1925 | if (IS_BROADWATER(dev) || IS_CRESTLINE(dev)) |
1926 | alignment = 128 * 1024; | |
a6c45cf0 | 1927 | else if (INTEL_INFO(dev)->gen >= 4) |
534843da CW |
1928 | alignment = 4 * 1024; |
1929 | else | |
1930 | alignment = 64 * 1024; | |
6b95a207 KH |
1931 | break; |
1932 | case I915_TILING_X: | |
1933 | /* pin() will align the object as required by fence */ | |
1934 | alignment = 0; | |
1935 | break; | |
1936 | case I915_TILING_Y: | |
1937 | /* FIXME: Is this true? */ | |
1938 | DRM_ERROR("Y tiled not allowed for scan out buffers\n"); | |
1939 | return -EINVAL; | |
1940 | default: | |
1941 | BUG(); | |
1942 | } | |
1943 | ||
ce453d81 | 1944 | dev_priv->mm.interruptible = false; |
2da3b9b9 | 1945 | ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined); |
48b956c5 | 1946 | if (ret) |
ce453d81 | 1947 | goto err_interruptible; |
6b95a207 KH |
1948 | |
1949 | /* Install a fence for tiled scan-out. Pre-i965 always needs a | |
1950 | * fence, whereas 965+ only requires a fence if using | |
1951 | * framebuffer compression. For simplicity, we always install | |
1952 | * a fence as the cost is not that onerous. | |
1953 | */ | |
06d98131 | 1954 | ret = i915_gem_object_get_fence(obj); |
9a5a53b3 CW |
1955 | if (ret) |
1956 | goto err_unpin; | |
1690e1eb | 1957 | |
9a5a53b3 | 1958 | i915_gem_object_pin_fence(obj); |
6b95a207 | 1959 | |
ce453d81 | 1960 | dev_priv->mm.interruptible = true; |
6b95a207 | 1961 | return 0; |
48b956c5 CW |
1962 | |
1963 | err_unpin: | |
1964 | i915_gem_object_unpin(obj); | |
ce453d81 CW |
1965 | err_interruptible: |
1966 | dev_priv->mm.interruptible = true; | |
48b956c5 | 1967 | return ret; |
6b95a207 KH |
1968 | } |
1969 | ||
1690e1eb CW |
1970 | void intel_unpin_fb_obj(struct drm_i915_gem_object *obj) |
1971 | { | |
1972 | i915_gem_object_unpin_fence(obj); | |
1973 | i915_gem_object_unpin(obj); | |
1974 | } | |
1975 | ||
c2c75131 DV |
1976 | /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel |
1977 | * is assumed to be a power-of-two. */ | |
1978 | static unsigned long gen4_compute_dspaddr_offset_xtiled(int *x, int *y, | |
1979 | unsigned int bpp, | |
1980 | unsigned int pitch) | |
1981 | { | |
1982 | int tile_rows, tiles; | |
1983 | ||
1984 | tile_rows = *y / 8; | |
1985 | *y %= 8; | |
1986 | tiles = *x / (512/bpp); | |
1987 | *x %= 512/bpp; | |
1988 | ||
1989 | return tile_rows * pitch * 8 + tiles * 4096; | |
1990 | } | |
1991 | ||
17638cd6 JB |
1992 | static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb, |
1993 | int x, int y) | |
81255565 JB |
1994 | { |
1995 | struct drm_device *dev = crtc->dev; | |
1996 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1997 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1998 | struct intel_framebuffer *intel_fb; | |
05394f39 | 1999 | struct drm_i915_gem_object *obj; |
81255565 | 2000 | int plane = intel_crtc->plane; |
e506a0c6 | 2001 | unsigned long linear_offset; |
81255565 | 2002 | u32 dspcntr; |
5eddb70b | 2003 | u32 reg; |
81255565 JB |
2004 | |
2005 | switch (plane) { | |
2006 | case 0: | |
2007 | case 1: | |
2008 | break; | |
2009 | default: | |
2010 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); | |
2011 | return -EINVAL; | |
2012 | } | |
2013 | ||
2014 | intel_fb = to_intel_framebuffer(fb); | |
2015 | obj = intel_fb->obj; | |
81255565 | 2016 | |
5eddb70b CW |
2017 | reg = DSPCNTR(plane); |
2018 | dspcntr = I915_READ(reg); | |
81255565 JB |
2019 | /* Mask out pixel format bits in case we change it */ |
2020 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
2021 | switch (fb->bits_per_pixel) { | |
2022 | case 8: | |
2023 | dspcntr |= DISPPLANE_8BPP; | |
2024 | break; | |
2025 | case 16: | |
2026 | if (fb->depth == 15) | |
2027 | dspcntr |= DISPPLANE_15_16BPP; | |
2028 | else | |
2029 | dspcntr |= DISPPLANE_16BPP; | |
2030 | break; | |
2031 | case 24: | |
2032 | case 32: | |
2033 | dspcntr |= DISPPLANE_32BPP_NO_ALPHA; | |
2034 | break; | |
2035 | default: | |
17638cd6 | 2036 | DRM_ERROR("Unknown color depth %d\n", fb->bits_per_pixel); |
81255565 JB |
2037 | return -EINVAL; |
2038 | } | |
a6c45cf0 | 2039 | if (INTEL_INFO(dev)->gen >= 4) { |
05394f39 | 2040 | if (obj->tiling_mode != I915_TILING_NONE) |
81255565 JB |
2041 | dspcntr |= DISPPLANE_TILED; |
2042 | else | |
2043 | dspcntr &= ~DISPPLANE_TILED; | |
2044 | } | |
2045 | ||
5eddb70b | 2046 | I915_WRITE(reg, dspcntr); |
81255565 | 2047 | |
e506a0c6 | 2048 | linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); |
81255565 | 2049 | |
c2c75131 DV |
2050 | if (INTEL_INFO(dev)->gen >= 4) { |
2051 | intel_crtc->dspaddr_offset = | |
2052 | gen4_compute_dspaddr_offset_xtiled(&x, &y, | |
2053 | fb->bits_per_pixel / 8, | |
2054 | fb->pitches[0]); | |
2055 | linear_offset -= intel_crtc->dspaddr_offset; | |
2056 | } else { | |
e506a0c6 | 2057 | intel_crtc->dspaddr_offset = linear_offset; |
c2c75131 | 2058 | } |
e506a0c6 DV |
2059 | |
2060 | DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n", | |
2061 | obj->gtt_offset, linear_offset, x, y, fb->pitches[0]); | |
01f2c773 | 2062 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
a6c45cf0 | 2063 | if (INTEL_INFO(dev)->gen >= 4) { |
c2c75131 DV |
2064 | I915_MODIFY_DISPBASE(DSPSURF(plane), |
2065 | obj->gtt_offset + intel_crtc->dspaddr_offset); | |
5eddb70b | 2066 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
e506a0c6 | 2067 | I915_WRITE(DSPLINOFF(plane), linear_offset); |
5eddb70b | 2068 | } else |
e506a0c6 | 2069 | I915_WRITE(DSPADDR(plane), obj->gtt_offset + linear_offset); |
5eddb70b | 2070 | POSTING_READ(reg); |
81255565 | 2071 | |
17638cd6 JB |
2072 | return 0; |
2073 | } | |
2074 | ||
2075 | static int ironlake_update_plane(struct drm_crtc *crtc, | |
2076 | struct drm_framebuffer *fb, int x, int y) | |
2077 | { | |
2078 | struct drm_device *dev = crtc->dev; | |
2079 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2080 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2081 | struct intel_framebuffer *intel_fb; | |
2082 | struct drm_i915_gem_object *obj; | |
2083 | int plane = intel_crtc->plane; | |
e506a0c6 | 2084 | unsigned long linear_offset; |
17638cd6 JB |
2085 | u32 dspcntr; |
2086 | u32 reg; | |
2087 | ||
2088 | switch (plane) { | |
2089 | case 0: | |
2090 | case 1: | |
27f8227b | 2091 | case 2: |
17638cd6 JB |
2092 | break; |
2093 | default: | |
2094 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); | |
2095 | return -EINVAL; | |
2096 | } | |
2097 | ||
2098 | intel_fb = to_intel_framebuffer(fb); | |
2099 | obj = intel_fb->obj; | |
2100 | ||
2101 | reg = DSPCNTR(plane); | |
2102 | dspcntr = I915_READ(reg); | |
2103 | /* Mask out pixel format bits in case we change it */ | |
2104 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
2105 | switch (fb->bits_per_pixel) { | |
2106 | case 8: | |
2107 | dspcntr |= DISPPLANE_8BPP; | |
2108 | break; | |
2109 | case 16: | |
2110 | if (fb->depth != 16) | |
2111 | return -EINVAL; | |
2112 | ||
2113 | dspcntr |= DISPPLANE_16BPP; | |
2114 | break; | |
2115 | case 24: | |
2116 | case 32: | |
2117 | if (fb->depth == 24) | |
2118 | dspcntr |= DISPPLANE_32BPP_NO_ALPHA; | |
2119 | else if (fb->depth == 30) | |
2120 | dspcntr |= DISPPLANE_32BPP_30BIT_NO_ALPHA; | |
2121 | else | |
2122 | return -EINVAL; | |
2123 | break; | |
2124 | default: | |
2125 | DRM_ERROR("Unknown color depth %d\n", fb->bits_per_pixel); | |
2126 | return -EINVAL; | |
2127 | } | |
2128 | ||
2129 | if (obj->tiling_mode != I915_TILING_NONE) | |
2130 | dspcntr |= DISPPLANE_TILED; | |
2131 | else | |
2132 | dspcntr &= ~DISPPLANE_TILED; | |
2133 | ||
2134 | /* must disable */ | |
2135 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; | |
2136 | ||
2137 | I915_WRITE(reg, dspcntr); | |
2138 | ||
e506a0c6 | 2139 | linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); |
c2c75131 DV |
2140 | intel_crtc->dspaddr_offset = |
2141 | gen4_compute_dspaddr_offset_xtiled(&x, &y, | |
2142 | fb->bits_per_pixel / 8, | |
2143 | fb->pitches[0]); | |
2144 | linear_offset -= intel_crtc->dspaddr_offset; | |
17638cd6 | 2145 | |
e506a0c6 DV |
2146 | DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n", |
2147 | obj->gtt_offset, linear_offset, x, y, fb->pitches[0]); | |
01f2c773 | 2148 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
c2c75131 DV |
2149 | I915_MODIFY_DISPBASE(DSPSURF(plane), |
2150 | obj->gtt_offset + intel_crtc->dspaddr_offset); | |
17638cd6 | 2151 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
e506a0c6 | 2152 | I915_WRITE(DSPLINOFF(plane), linear_offset); |
17638cd6 JB |
2153 | POSTING_READ(reg); |
2154 | ||
2155 | return 0; | |
2156 | } | |
2157 | ||
2158 | /* Assume fb object is pinned & idle & fenced and just update base pointers */ | |
2159 | static int | |
2160 | intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb, | |
2161 | int x, int y, enum mode_set_atomic state) | |
2162 | { | |
2163 | struct drm_device *dev = crtc->dev; | |
2164 | struct drm_i915_private *dev_priv = dev->dev_private; | |
17638cd6 | 2165 | |
6b8e6ed0 CW |
2166 | if (dev_priv->display.disable_fbc) |
2167 | dev_priv->display.disable_fbc(dev); | |
3dec0095 | 2168 | intel_increase_pllclock(crtc); |
81255565 | 2169 | |
6b8e6ed0 | 2170 | return dev_priv->display.update_plane(crtc, fb, x, y); |
81255565 JB |
2171 | } |
2172 | ||
14667a4b CW |
2173 | static int |
2174 | intel_finish_fb(struct drm_framebuffer *old_fb) | |
2175 | { | |
2176 | struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj; | |
2177 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; | |
2178 | bool was_interruptible = dev_priv->mm.interruptible; | |
2179 | int ret; | |
2180 | ||
2181 | wait_event(dev_priv->pending_flip_queue, | |
2182 | atomic_read(&dev_priv->mm.wedged) || | |
2183 | atomic_read(&obj->pending_flip) == 0); | |
2184 | ||
2185 | /* Big Hammer, we also need to ensure that any pending | |
2186 | * MI_WAIT_FOR_EVENT inside a user batch buffer on the | |
2187 | * current scanout is retired before unpinning the old | |
2188 | * framebuffer. | |
2189 | * | |
2190 | * This should only fail upon a hung GPU, in which case we | |
2191 | * can safely continue. | |
2192 | */ | |
2193 | dev_priv->mm.interruptible = false; | |
2194 | ret = i915_gem_object_finish_gpu(obj); | |
2195 | dev_priv->mm.interruptible = was_interruptible; | |
2196 | ||
2197 | return ret; | |
2198 | } | |
2199 | ||
5c3b82e2 | 2200 | static int |
3c4fdcfb KH |
2201 | intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, |
2202 | struct drm_framebuffer *old_fb) | |
79e53945 JB |
2203 | { |
2204 | struct drm_device *dev = crtc->dev; | |
6b8e6ed0 | 2205 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 JB |
2206 | struct drm_i915_master_private *master_priv; |
2207 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5c3b82e2 | 2208 | int ret; |
79e53945 JB |
2209 | |
2210 | /* no fb bound */ | |
2211 | if (!crtc->fb) { | |
a5071c2f | 2212 | DRM_ERROR("No FB bound\n"); |
5c3b82e2 CW |
2213 | return 0; |
2214 | } | |
2215 | ||
5826eca5 ED |
2216 | if(intel_crtc->plane > dev_priv->num_pipe) { |
2217 | DRM_ERROR("no plane for crtc: plane %d, num_pipes %d\n", | |
2218 | intel_crtc->plane, | |
2219 | dev_priv->num_pipe); | |
5c3b82e2 | 2220 | return -EINVAL; |
79e53945 JB |
2221 | } |
2222 | ||
5c3b82e2 | 2223 | mutex_lock(&dev->struct_mutex); |
265db958 CW |
2224 | ret = intel_pin_and_fence_fb_obj(dev, |
2225 | to_intel_framebuffer(crtc->fb)->obj, | |
919926ae | 2226 | NULL); |
5c3b82e2 CW |
2227 | if (ret != 0) { |
2228 | mutex_unlock(&dev->struct_mutex); | |
a5071c2f | 2229 | DRM_ERROR("pin & fence failed\n"); |
5c3b82e2 CW |
2230 | return ret; |
2231 | } | |
79e53945 | 2232 | |
14667a4b CW |
2233 | if (old_fb) |
2234 | intel_finish_fb(old_fb); | |
265db958 | 2235 | |
6b8e6ed0 | 2236 | ret = dev_priv->display.update_plane(crtc, crtc->fb, x, y); |
4e6cfefc | 2237 | if (ret) { |
1690e1eb | 2238 | intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj); |
5c3b82e2 | 2239 | mutex_unlock(&dev->struct_mutex); |
a5071c2f | 2240 | DRM_ERROR("failed to update base address\n"); |
4e6cfefc | 2241 | return ret; |
79e53945 | 2242 | } |
3c4fdcfb | 2243 | |
b7f1de28 CW |
2244 | if (old_fb) { |
2245 | intel_wait_for_vblank(dev, intel_crtc->pipe); | |
1690e1eb | 2246 | intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj); |
b7f1de28 | 2247 | } |
652c393a | 2248 | |
6b8e6ed0 | 2249 | intel_update_fbc(dev); |
5c3b82e2 | 2250 | mutex_unlock(&dev->struct_mutex); |
79e53945 JB |
2251 | |
2252 | if (!dev->primary->master) | |
5c3b82e2 | 2253 | return 0; |
79e53945 JB |
2254 | |
2255 | master_priv = dev->primary->master->driver_priv; | |
2256 | if (!master_priv->sarea_priv) | |
5c3b82e2 | 2257 | return 0; |
79e53945 | 2258 | |
265db958 | 2259 | if (intel_crtc->pipe) { |
79e53945 JB |
2260 | master_priv->sarea_priv->pipeB_x = x; |
2261 | master_priv->sarea_priv->pipeB_y = y; | |
5c3b82e2 CW |
2262 | } else { |
2263 | master_priv->sarea_priv->pipeA_x = x; | |
2264 | master_priv->sarea_priv->pipeA_y = y; | |
79e53945 | 2265 | } |
5c3b82e2 CW |
2266 | |
2267 | return 0; | |
79e53945 JB |
2268 | } |
2269 | ||
5eddb70b | 2270 | static void ironlake_set_pll_edp(struct drm_crtc *crtc, int clock) |
32f9d658 ZW |
2271 | { |
2272 | struct drm_device *dev = crtc->dev; | |
2273 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2274 | u32 dpa_ctl; | |
2275 | ||
28c97730 | 2276 | DRM_DEBUG_KMS("eDP PLL enable for clock %d\n", clock); |
32f9d658 ZW |
2277 | dpa_ctl = I915_READ(DP_A); |
2278 | dpa_ctl &= ~DP_PLL_FREQ_MASK; | |
2279 | ||
2280 | if (clock < 200000) { | |
2281 | u32 temp; | |
2282 | dpa_ctl |= DP_PLL_FREQ_160MHZ; | |
2283 | /* workaround for 160Mhz: | |
2284 | 1) program 0x4600c bits 15:0 = 0x8124 | |
2285 | 2) program 0x46010 bit 0 = 1 | |
2286 | 3) program 0x46034 bit 24 = 1 | |
2287 | 4) program 0x64000 bit 14 = 1 | |
2288 | */ | |
2289 | temp = I915_READ(0x4600c); | |
2290 | temp &= 0xffff0000; | |
2291 | I915_WRITE(0x4600c, temp | 0x8124); | |
2292 | ||
2293 | temp = I915_READ(0x46010); | |
2294 | I915_WRITE(0x46010, temp | 1); | |
2295 | ||
2296 | temp = I915_READ(0x46034); | |
2297 | I915_WRITE(0x46034, temp | (1 << 24)); | |
2298 | } else { | |
2299 | dpa_ctl |= DP_PLL_FREQ_270MHZ; | |
2300 | } | |
2301 | I915_WRITE(DP_A, dpa_ctl); | |
2302 | ||
5eddb70b | 2303 | POSTING_READ(DP_A); |
32f9d658 ZW |
2304 | udelay(500); |
2305 | } | |
2306 | ||
5e84e1a4 ZW |
2307 | static void intel_fdi_normal_train(struct drm_crtc *crtc) |
2308 | { | |
2309 | struct drm_device *dev = crtc->dev; | |
2310 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2311 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2312 | int pipe = intel_crtc->pipe; | |
2313 | u32 reg, temp; | |
2314 | ||
2315 | /* enable normal train */ | |
2316 | reg = FDI_TX_CTL(pipe); | |
2317 | temp = I915_READ(reg); | |
61e499bf | 2318 | if (IS_IVYBRIDGE(dev)) { |
357555c0 JB |
2319 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
2320 | temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE; | |
61e499bf KP |
2321 | } else { |
2322 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2323 | temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE; | |
357555c0 | 2324 | } |
5e84e1a4 ZW |
2325 | I915_WRITE(reg, temp); |
2326 | ||
2327 | reg = FDI_RX_CTL(pipe); | |
2328 | temp = I915_READ(reg); | |
2329 | if (HAS_PCH_CPT(dev)) { | |
2330 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2331 | temp |= FDI_LINK_TRAIN_NORMAL_CPT; | |
2332 | } else { | |
2333 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2334 | temp |= FDI_LINK_TRAIN_NONE; | |
2335 | } | |
2336 | I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); | |
2337 | ||
2338 | /* wait one idle pattern time */ | |
2339 | POSTING_READ(reg); | |
2340 | udelay(1000); | |
357555c0 JB |
2341 | |
2342 | /* IVB wants error correction enabled */ | |
2343 | if (IS_IVYBRIDGE(dev)) | |
2344 | I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE | | |
2345 | FDI_FE_ERRC_ENABLE); | |
5e84e1a4 ZW |
2346 | } |
2347 | ||
291427f5 JB |
2348 | static void cpt_phase_pointer_enable(struct drm_device *dev, int pipe) |
2349 | { | |
2350 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2351 | u32 flags = I915_READ(SOUTH_CHICKEN1); | |
2352 | ||
2353 | flags |= FDI_PHASE_SYNC_OVR(pipe); | |
2354 | I915_WRITE(SOUTH_CHICKEN1, flags); /* once to unlock... */ | |
2355 | flags |= FDI_PHASE_SYNC_EN(pipe); | |
2356 | I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to enable */ | |
2357 | POSTING_READ(SOUTH_CHICKEN1); | |
2358 | } | |
2359 | ||
8db9d77b ZW |
2360 | /* The FDI link training functions for ILK/Ibexpeak. */ |
2361 | static void ironlake_fdi_link_train(struct drm_crtc *crtc) | |
2362 | { | |
2363 | struct drm_device *dev = crtc->dev; | |
2364 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2365 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2366 | int pipe = intel_crtc->pipe; | |
0fc932b8 | 2367 | int plane = intel_crtc->plane; |
5eddb70b | 2368 | u32 reg, temp, tries; |
8db9d77b | 2369 | |
0fc932b8 JB |
2370 | /* FDI needs bits from pipe & plane first */ |
2371 | assert_pipe_enabled(dev_priv, pipe); | |
2372 | assert_plane_enabled(dev_priv, plane); | |
2373 | ||
e1a44743 AJ |
2374 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
2375 | for train result */ | |
5eddb70b CW |
2376 | reg = FDI_RX_IMR(pipe); |
2377 | temp = I915_READ(reg); | |
e1a44743 AJ |
2378 | temp &= ~FDI_RX_SYMBOL_LOCK; |
2379 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
2380 | I915_WRITE(reg, temp); |
2381 | I915_READ(reg); | |
e1a44743 AJ |
2382 | udelay(150); |
2383 | ||
8db9d77b | 2384 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
2385 | reg = FDI_TX_CTL(pipe); |
2386 | temp = I915_READ(reg); | |
77ffb597 AJ |
2387 | temp &= ~(7 << 19); |
2388 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
8db9d77b ZW |
2389 | temp &= ~FDI_LINK_TRAIN_NONE; |
2390 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b | 2391 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 2392 | |
5eddb70b CW |
2393 | reg = FDI_RX_CTL(pipe); |
2394 | temp = I915_READ(reg); | |
8db9d77b ZW |
2395 | temp &= ~FDI_LINK_TRAIN_NONE; |
2396 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
5eddb70b CW |
2397 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2398 | ||
2399 | POSTING_READ(reg); | |
8db9d77b ZW |
2400 | udelay(150); |
2401 | ||
5b2adf89 | 2402 | /* Ironlake workaround, enable clock pointer after FDI enable*/ |
6f06ce18 JB |
2403 | if (HAS_PCH_IBX(dev)) { |
2404 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); | |
2405 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR | | |
2406 | FDI_RX_PHASE_SYNC_POINTER_EN); | |
2407 | } | |
5b2adf89 | 2408 | |
5eddb70b | 2409 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 2410 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 2411 | temp = I915_READ(reg); |
8db9d77b ZW |
2412 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2413 | ||
2414 | if ((temp & FDI_RX_BIT_LOCK)) { | |
2415 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
5eddb70b | 2416 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
8db9d77b ZW |
2417 | break; |
2418 | } | |
8db9d77b | 2419 | } |
e1a44743 | 2420 | if (tries == 5) |
5eddb70b | 2421 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
2422 | |
2423 | /* Train 2 */ | |
5eddb70b CW |
2424 | reg = FDI_TX_CTL(pipe); |
2425 | temp = I915_READ(reg); | |
8db9d77b ZW |
2426 | temp &= ~FDI_LINK_TRAIN_NONE; |
2427 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 2428 | I915_WRITE(reg, temp); |
8db9d77b | 2429 | |
5eddb70b CW |
2430 | reg = FDI_RX_CTL(pipe); |
2431 | temp = I915_READ(reg); | |
8db9d77b ZW |
2432 | temp &= ~FDI_LINK_TRAIN_NONE; |
2433 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
5eddb70b | 2434 | I915_WRITE(reg, temp); |
8db9d77b | 2435 | |
5eddb70b CW |
2436 | POSTING_READ(reg); |
2437 | udelay(150); | |
8db9d77b | 2438 | |
5eddb70b | 2439 | reg = FDI_RX_IIR(pipe); |
e1a44743 | 2440 | for (tries = 0; tries < 5; tries++) { |
5eddb70b | 2441 | temp = I915_READ(reg); |
8db9d77b ZW |
2442 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
2443 | ||
2444 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
5eddb70b | 2445 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
8db9d77b ZW |
2446 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
2447 | break; | |
2448 | } | |
8db9d77b | 2449 | } |
e1a44743 | 2450 | if (tries == 5) |
5eddb70b | 2451 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
2452 | |
2453 | DRM_DEBUG_KMS("FDI train done\n"); | |
5c5313c8 | 2454 | |
8db9d77b ZW |
2455 | } |
2456 | ||
0206e353 | 2457 | static const int snb_b_fdi_train_param[] = { |
8db9d77b ZW |
2458 | FDI_LINK_TRAIN_400MV_0DB_SNB_B, |
2459 | FDI_LINK_TRAIN_400MV_6DB_SNB_B, | |
2460 | FDI_LINK_TRAIN_600MV_3_5DB_SNB_B, | |
2461 | FDI_LINK_TRAIN_800MV_0DB_SNB_B, | |
2462 | }; | |
2463 | ||
2464 | /* The FDI link training functions for SNB/Cougarpoint. */ | |
2465 | static void gen6_fdi_link_train(struct drm_crtc *crtc) | |
2466 | { | |
2467 | struct drm_device *dev = crtc->dev; | |
2468 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2469 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2470 | int pipe = intel_crtc->pipe; | |
fa37d39e | 2471 | u32 reg, temp, i, retry; |
8db9d77b | 2472 | |
e1a44743 AJ |
2473 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
2474 | for train result */ | |
5eddb70b CW |
2475 | reg = FDI_RX_IMR(pipe); |
2476 | temp = I915_READ(reg); | |
e1a44743 AJ |
2477 | temp &= ~FDI_RX_SYMBOL_LOCK; |
2478 | temp &= ~FDI_RX_BIT_LOCK; | |
5eddb70b CW |
2479 | I915_WRITE(reg, temp); |
2480 | ||
2481 | POSTING_READ(reg); | |
e1a44743 AJ |
2482 | udelay(150); |
2483 | ||
8db9d77b | 2484 | /* enable CPU FDI TX and PCH FDI RX */ |
5eddb70b CW |
2485 | reg = FDI_TX_CTL(pipe); |
2486 | temp = I915_READ(reg); | |
77ffb597 AJ |
2487 | temp &= ~(7 << 19); |
2488 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
8db9d77b ZW |
2489 | temp &= ~FDI_LINK_TRAIN_NONE; |
2490 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2491 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2492 | /* SNB-B */ | |
2493 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
5eddb70b | 2494 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
8db9d77b | 2495 | |
5eddb70b CW |
2496 | reg = FDI_RX_CTL(pipe); |
2497 | temp = I915_READ(reg); | |
8db9d77b ZW |
2498 | if (HAS_PCH_CPT(dev)) { |
2499 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2500 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
2501 | } else { | |
2502 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2503 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2504 | } | |
5eddb70b CW |
2505 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2506 | ||
2507 | POSTING_READ(reg); | |
8db9d77b ZW |
2508 | udelay(150); |
2509 | ||
291427f5 JB |
2510 | if (HAS_PCH_CPT(dev)) |
2511 | cpt_phase_pointer_enable(dev, pipe); | |
2512 | ||
0206e353 | 2513 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
2514 | reg = FDI_TX_CTL(pipe); |
2515 | temp = I915_READ(reg); | |
8db9d77b ZW |
2516 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
2517 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
2518 | I915_WRITE(reg, temp); |
2519 | ||
2520 | POSTING_READ(reg); | |
8db9d77b ZW |
2521 | udelay(500); |
2522 | ||
fa37d39e SP |
2523 | for (retry = 0; retry < 5; retry++) { |
2524 | reg = FDI_RX_IIR(pipe); | |
2525 | temp = I915_READ(reg); | |
2526 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2527 | if (temp & FDI_RX_BIT_LOCK) { | |
2528 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
2529 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
2530 | break; | |
2531 | } | |
2532 | udelay(50); | |
8db9d77b | 2533 | } |
fa37d39e SP |
2534 | if (retry < 5) |
2535 | break; | |
8db9d77b ZW |
2536 | } |
2537 | if (i == 4) | |
5eddb70b | 2538 | DRM_ERROR("FDI train 1 fail!\n"); |
8db9d77b ZW |
2539 | |
2540 | /* Train 2 */ | |
5eddb70b CW |
2541 | reg = FDI_TX_CTL(pipe); |
2542 | temp = I915_READ(reg); | |
8db9d77b ZW |
2543 | temp &= ~FDI_LINK_TRAIN_NONE; |
2544 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
2545 | if (IS_GEN6(dev)) { | |
2546 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2547 | /* SNB-B */ | |
2548 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
2549 | } | |
5eddb70b | 2550 | I915_WRITE(reg, temp); |
8db9d77b | 2551 | |
5eddb70b CW |
2552 | reg = FDI_RX_CTL(pipe); |
2553 | temp = I915_READ(reg); | |
8db9d77b ZW |
2554 | if (HAS_PCH_CPT(dev)) { |
2555 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2556 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
2557 | } else { | |
2558 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2559 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
2560 | } | |
5eddb70b CW |
2561 | I915_WRITE(reg, temp); |
2562 | ||
2563 | POSTING_READ(reg); | |
8db9d77b ZW |
2564 | udelay(150); |
2565 | ||
0206e353 | 2566 | for (i = 0; i < 4; i++) { |
5eddb70b CW |
2567 | reg = FDI_TX_CTL(pipe); |
2568 | temp = I915_READ(reg); | |
8db9d77b ZW |
2569 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
2570 | temp |= snb_b_fdi_train_param[i]; | |
5eddb70b CW |
2571 | I915_WRITE(reg, temp); |
2572 | ||
2573 | POSTING_READ(reg); | |
8db9d77b ZW |
2574 | udelay(500); |
2575 | ||
fa37d39e SP |
2576 | for (retry = 0; retry < 5; retry++) { |
2577 | reg = FDI_RX_IIR(pipe); | |
2578 | temp = I915_READ(reg); | |
2579 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2580 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
2581 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
2582 | DRM_DEBUG_KMS("FDI train 2 done.\n"); | |
2583 | break; | |
2584 | } | |
2585 | udelay(50); | |
8db9d77b | 2586 | } |
fa37d39e SP |
2587 | if (retry < 5) |
2588 | break; | |
8db9d77b ZW |
2589 | } |
2590 | if (i == 4) | |
5eddb70b | 2591 | DRM_ERROR("FDI train 2 fail!\n"); |
8db9d77b ZW |
2592 | |
2593 | DRM_DEBUG_KMS("FDI train done.\n"); | |
2594 | } | |
2595 | ||
357555c0 JB |
2596 | /* Manual link training for Ivy Bridge A0 parts */ |
2597 | static void ivb_manual_fdi_link_train(struct drm_crtc *crtc) | |
2598 | { | |
2599 | struct drm_device *dev = crtc->dev; | |
2600 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2601 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2602 | int pipe = intel_crtc->pipe; | |
2603 | u32 reg, temp, i; | |
2604 | ||
2605 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit | |
2606 | for train result */ | |
2607 | reg = FDI_RX_IMR(pipe); | |
2608 | temp = I915_READ(reg); | |
2609 | temp &= ~FDI_RX_SYMBOL_LOCK; | |
2610 | temp &= ~FDI_RX_BIT_LOCK; | |
2611 | I915_WRITE(reg, temp); | |
2612 | ||
2613 | POSTING_READ(reg); | |
2614 | udelay(150); | |
2615 | ||
2616 | /* enable CPU FDI TX and PCH FDI RX */ | |
2617 | reg = FDI_TX_CTL(pipe); | |
2618 | temp = I915_READ(reg); | |
2619 | temp &= ~(7 << 19); | |
2620 | temp |= (intel_crtc->fdi_lanes - 1) << 19; | |
2621 | temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB); | |
2622 | temp |= FDI_LINK_TRAIN_PATTERN_1_IVB; | |
2623 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2624 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
c4f9c4c2 | 2625 | temp |= FDI_COMPOSITE_SYNC; |
357555c0 JB |
2626 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
2627 | ||
2628 | reg = FDI_RX_CTL(pipe); | |
2629 | temp = I915_READ(reg); | |
2630 | temp &= ~FDI_LINK_TRAIN_AUTO; | |
2631 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2632 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
c4f9c4c2 | 2633 | temp |= FDI_COMPOSITE_SYNC; |
357555c0 JB |
2634 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2635 | ||
2636 | POSTING_READ(reg); | |
2637 | udelay(150); | |
2638 | ||
291427f5 JB |
2639 | if (HAS_PCH_CPT(dev)) |
2640 | cpt_phase_pointer_enable(dev, pipe); | |
2641 | ||
0206e353 | 2642 | for (i = 0; i < 4; i++) { |
357555c0 JB |
2643 | reg = FDI_TX_CTL(pipe); |
2644 | temp = I915_READ(reg); | |
2645 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2646 | temp |= snb_b_fdi_train_param[i]; | |
2647 | I915_WRITE(reg, temp); | |
2648 | ||
2649 | POSTING_READ(reg); | |
2650 | udelay(500); | |
2651 | ||
2652 | reg = FDI_RX_IIR(pipe); | |
2653 | temp = I915_READ(reg); | |
2654 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2655 | ||
2656 | if (temp & FDI_RX_BIT_LOCK || | |
2657 | (I915_READ(reg) & FDI_RX_BIT_LOCK)) { | |
2658 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); | |
2659 | DRM_DEBUG_KMS("FDI train 1 done.\n"); | |
2660 | break; | |
2661 | } | |
2662 | } | |
2663 | if (i == 4) | |
2664 | DRM_ERROR("FDI train 1 fail!\n"); | |
2665 | ||
2666 | /* Train 2 */ | |
2667 | reg = FDI_TX_CTL(pipe); | |
2668 | temp = I915_READ(reg); | |
2669 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; | |
2670 | temp |= FDI_LINK_TRAIN_PATTERN_2_IVB; | |
2671 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2672 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; | |
2673 | I915_WRITE(reg, temp); | |
2674 | ||
2675 | reg = FDI_RX_CTL(pipe); | |
2676 | temp = I915_READ(reg); | |
2677 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2678 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; | |
2679 | I915_WRITE(reg, temp); | |
2680 | ||
2681 | POSTING_READ(reg); | |
2682 | udelay(150); | |
2683 | ||
0206e353 | 2684 | for (i = 0; i < 4; i++) { |
357555c0 JB |
2685 | reg = FDI_TX_CTL(pipe); |
2686 | temp = I915_READ(reg); | |
2687 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; | |
2688 | temp |= snb_b_fdi_train_param[i]; | |
2689 | I915_WRITE(reg, temp); | |
2690 | ||
2691 | POSTING_READ(reg); | |
2692 | udelay(500); | |
2693 | ||
2694 | reg = FDI_RX_IIR(pipe); | |
2695 | temp = I915_READ(reg); | |
2696 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); | |
2697 | ||
2698 | if (temp & FDI_RX_SYMBOL_LOCK) { | |
2699 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); | |
2700 | DRM_DEBUG_KMS("FDI train 2 done.\n"); | |
2701 | break; | |
2702 | } | |
2703 | } | |
2704 | if (i == 4) | |
2705 | DRM_ERROR("FDI train 2 fail!\n"); | |
2706 | ||
2707 | DRM_DEBUG_KMS("FDI train done.\n"); | |
2708 | } | |
2709 | ||
2710 | static void ironlake_fdi_pll_enable(struct drm_crtc *crtc) | |
2c07245f ZW |
2711 | { |
2712 | struct drm_device *dev = crtc->dev; | |
2713 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2714 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2715 | int pipe = intel_crtc->pipe; | |
5eddb70b | 2716 | u32 reg, temp; |
79e53945 | 2717 | |
c64e311e | 2718 | /* Write the TU size bits so error detection works */ |
5eddb70b CW |
2719 | I915_WRITE(FDI_RX_TUSIZE1(pipe), |
2720 | I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK); | |
c64e311e | 2721 | |
c98e9dcf | 2722 | /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ |
5eddb70b CW |
2723 | reg = FDI_RX_CTL(pipe); |
2724 | temp = I915_READ(reg); | |
2725 | temp &= ~((0x7 << 19) | (0x7 << 16)); | |
c98e9dcf | 2726 | temp |= (intel_crtc->fdi_lanes - 1) << 19; |
5eddb70b CW |
2727 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; |
2728 | I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE); | |
2729 | ||
2730 | POSTING_READ(reg); | |
c98e9dcf JB |
2731 | udelay(200); |
2732 | ||
2733 | /* Switch from Rawclk to PCDclk */ | |
5eddb70b CW |
2734 | temp = I915_READ(reg); |
2735 | I915_WRITE(reg, temp | FDI_PCDCLK); | |
2736 | ||
2737 | POSTING_READ(reg); | |
c98e9dcf JB |
2738 | udelay(200); |
2739 | ||
bf507ef7 ED |
2740 | /* On Haswell, the PLL configuration for ports and pipes is handled |
2741 | * separately, as part of DDI setup */ | |
2742 | if (!IS_HASWELL(dev)) { | |
2743 | /* Enable CPU FDI TX PLL, always on for Ironlake */ | |
2744 | reg = FDI_TX_CTL(pipe); | |
2745 | temp = I915_READ(reg); | |
2746 | if ((temp & FDI_TX_PLL_ENABLE) == 0) { | |
2747 | I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE); | |
5eddb70b | 2748 | |
bf507ef7 ED |
2749 | POSTING_READ(reg); |
2750 | udelay(100); | |
2751 | } | |
6be4a607 | 2752 | } |
0e23b99d JB |
2753 | } |
2754 | ||
291427f5 JB |
2755 | static void cpt_phase_pointer_disable(struct drm_device *dev, int pipe) |
2756 | { | |
2757 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2758 | u32 flags = I915_READ(SOUTH_CHICKEN1); | |
2759 | ||
2760 | flags &= ~(FDI_PHASE_SYNC_EN(pipe)); | |
2761 | I915_WRITE(SOUTH_CHICKEN1, flags); /* once to disable... */ | |
2762 | flags &= ~(FDI_PHASE_SYNC_OVR(pipe)); | |
2763 | I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to lock */ | |
2764 | POSTING_READ(SOUTH_CHICKEN1); | |
2765 | } | |
0fc932b8 JB |
2766 | static void ironlake_fdi_disable(struct drm_crtc *crtc) |
2767 | { | |
2768 | struct drm_device *dev = crtc->dev; | |
2769 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2770 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2771 | int pipe = intel_crtc->pipe; | |
2772 | u32 reg, temp; | |
2773 | ||
2774 | /* disable CPU FDI tx and PCH FDI rx */ | |
2775 | reg = FDI_TX_CTL(pipe); | |
2776 | temp = I915_READ(reg); | |
2777 | I915_WRITE(reg, temp & ~FDI_TX_ENABLE); | |
2778 | POSTING_READ(reg); | |
2779 | ||
2780 | reg = FDI_RX_CTL(pipe); | |
2781 | temp = I915_READ(reg); | |
2782 | temp &= ~(0x7 << 16); | |
2783 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; | |
2784 | I915_WRITE(reg, temp & ~FDI_RX_ENABLE); | |
2785 | ||
2786 | POSTING_READ(reg); | |
2787 | udelay(100); | |
2788 | ||
2789 | /* Ironlake workaround, disable clock pointer after downing FDI */ | |
6f06ce18 JB |
2790 | if (HAS_PCH_IBX(dev)) { |
2791 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); | |
0fc932b8 JB |
2792 | I915_WRITE(FDI_RX_CHICKEN(pipe), |
2793 | I915_READ(FDI_RX_CHICKEN(pipe) & | |
6f06ce18 | 2794 | ~FDI_RX_PHASE_SYNC_POINTER_EN)); |
291427f5 JB |
2795 | } else if (HAS_PCH_CPT(dev)) { |
2796 | cpt_phase_pointer_disable(dev, pipe); | |
6f06ce18 | 2797 | } |
0fc932b8 JB |
2798 | |
2799 | /* still set train pattern 1 */ | |
2800 | reg = FDI_TX_CTL(pipe); | |
2801 | temp = I915_READ(reg); | |
2802 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2803 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2804 | I915_WRITE(reg, temp); | |
2805 | ||
2806 | reg = FDI_RX_CTL(pipe); | |
2807 | temp = I915_READ(reg); | |
2808 | if (HAS_PCH_CPT(dev)) { | |
2809 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; | |
2810 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; | |
2811 | } else { | |
2812 | temp &= ~FDI_LINK_TRAIN_NONE; | |
2813 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
2814 | } | |
2815 | /* BPC in FDI rx is consistent with that in PIPECONF */ | |
2816 | temp &= ~(0x07 << 16); | |
2817 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; | |
2818 | I915_WRITE(reg, temp); | |
2819 | ||
2820 | POSTING_READ(reg); | |
2821 | udelay(100); | |
2822 | } | |
2823 | ||
e6c3a2a6 CW |
2824 | static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc) |
2825 | { | |
0f91128d | 2826 | struct drm_device *dev = crtc->dev; |
e6c3a2a6 CW |
2827 | |
2828 | if (crtc->fb == NULL) | |
2829 | return; | |
2830 | ||
0f91128d CW |
2831 | mutex_lock(&dev->struct_mutex); |
2832 | intel_finish_fb(crtc->fb); | |
2833 | mutex_unlock(&dev->struct_mutex); | |
e6c3a2a6 CW |
2834 | } |
2835 | ||
040484af JB |
2836 | static bool intel_crtc_driving_pch(struct drm_crtc *crtc) |
2837 | { | |
2838 | struct drm_device *dev = crtc->dev; | |
2839 | struct drm_mode_config *mode_config = &dev->mode_config; | |
2840 | struct intel_encoder *encoder; | |
2841 | ||
2842 | /* | |
2843 | * If there's a non-PCH eDP on this crtc, it must be DP_A, and that | |
2844 | * must be driven by its own crtc; no sharing is possible. | |
2845 | */ | |
2846 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) { | |
2847 | if (encoder->base.crtc != crtc) | |
2848 | continue; | |
2849 | ||
6ee8bab0 ED |
2850 | /* On Haswell, LPT PCH handles the VGA connection via FDI, and Haswell |
2851 | * CPU handles all others */ | |
2852 | if (IS_HASWELL(dev)) { | |
2853 | /* It is still unclear how this will work on PPT, so throw up a warning */ | |
2854 | WARN_ON(!HAS_PCH_LPT(dev)); | |
2855 | ||
2856 | if (encoder->type == DRM_MODE_ENCODER_DAC) { | |
2857 | DRM_DEBUG_KMS("Haswell detected DAC encoder, assuming is PCH\n"); | |
2858 | return true; | |
2859 | } else { | |
2860 | DRM_DEBUG_KMS("Haswell detected encoder %d, assuming is CPU\n", | |
2861 | encoder->type); | |
2862 | return false; | |
2863 | } | |
2864 | } | |
2865 | ||
040484af JB |
2866 | switch (encoder->type) { |
2867 | case INTEL_OUTPUT_EDP: | |
2868 | if (!intel_encoder_is_pch_edp(&encoder->base)) | |
2869 | return false; | |
2870 | continue; | |
2871 | } | |
2872 | } | |
2873 | ||
2874 | return true; | |
2875 | } | |
2876 | ||
e615efe4 ED |
2877 | /* Program iCLKIP clock to the desired frequency */ |
2878 | static void lpt_program_iclkip(struct drm_crtc *crtc) | |
2879 | { | |
2880 | struct drm_device *dev = crtc->dev; | |
2881 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2882 | u32 divsel, phaseinc, auxdiv, phasedir = 0; | |
2883 | u32 temp; | |
2884 | ||
2885 | /* It is necessary to ungate the pixclk gate prior to programming | |
2886 | * the divisors, and gate it back when it is done. | |
2887 | */ | |
2888 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE); | |
2889 | ||
2890 | /* Disable SSCCTL */ | |
2891 | intel_sbi_write(dev_priv, SBI_SSCCTL6, | |
2892 | intel_sbi_read(dev_priv, SBI_SSCCTL6) | | |
2893 | SBI_SSCCTL_DISABLE); | |
2894 | ||
2895 | /* 20MHz is a corner case which is out of range for the 7-bit divisor */ | |
2896 | if (crtc->mode.clock == 20000) { | |
2897 | auxdiv = 1; | |
2898 | divsel = 0x41; | |
2899 | phaseinc = 0x20; | |
2900 | } else { | |
2901 | /* The iCLK virtual clock root frequency is in MHz, | |
2902 | * but the crtc->mode.clock in in KHz. To get the divisors, | |
2903 | * it is necessary to divide one by another, so we | |
2904 | * convert the virtual clock precision to KHz here for higher | |
2905 | * precision. | |
2906 | */ | |
2907 | u32 iclk_virtual_root_freq = 172800 * 1000; | |
2908 | u32 iclk_pi_range = 64; | |
2909 | u32 desired_divisor, msb_divisor_value, pi_value; | |
2910 | ||
2911 | desired_divisor = (iclk_virtual_root_freq / crtc->mode.clock); | |
2912 | msb_divisor_value = desired_divisor / iclk_pi_range; | |
2913 | pi_value = desired_divisor % iclk_pi_range; | |
2914 | ||
2915 | auxdiv = 0; | |
2916 | divsel = msb_divisor_value - 2; | |
2917 | phaseinc = pi_value; | |
2918 | } | |
2919 | ||
2920 | /* This should not happen with any sane values */ | |
2921 | WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) & | |
2922 | ~SBI_SSCDIVINTPHASE_DIVSEL_MASK); | |
2923 | WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) & | |
2924 | ~SBI_SSCDIVINTPHASE_INCVAL_MASK); | |
2925 | ||
2926 | DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n", | |
2927 | crtc->mode.clock, | |
2928 | auxdiv, | |
2929 | divsel, | |
2930 | phasedir, | |
2931 | phaseinc); | |
2932 | ||
2933 | /* Program SSCDIVINTPHASE6 */ | |
2934 | temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6); | |
2935 | temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK; | |
2936 | temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel); | |
2937 | temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK; | |
2938 | temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc); | |
2939 | temp |= SBI_SSCDIVINTPHASE_DIR(phasedir); | |
2940 | temp |= SBI_SSCDIVINTPHASE_PROPAGATE; | |
2941 | ||
2942 | intel_sbi_write(dev_priv, | |
2943 | SBI_SSCDIVINTPHASE6, | |
2944 | temp); | |
2945 | ||
2946 | /* Program SSCAUXDIV */ | |
2947 | temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6); | |
2948 | temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1); | |
2949 | temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv); | |
2950 | intel_sbi_write(dev_priv, | |
2951 | SBI_SSCAUXDIV6, | |
2952 | temp); | |
2953 | ||
2954 | ||
2955 | /* Enable modulator and associated divider */ | |
2956 | temp = intel_sbi_read(dev_priv, SBI_SSCCTL6); | |
2957 | temp &= ~SBI_SSCCTL_DISABLE; | |
2958 | intel_sbi_write(dev_priv, | |
2959 | SBI_SSCCTL6, | |
2960 | temp); | |
2961 | ||
2962 | /* Wait for initialization time */ | |
2963 | udelay(24); | |
2964 | ||
2965 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE); | |
2966 | } | |
2967 | ||
f67a559d JB |
2968 | /* |
2969 | * Enable PCH resources required for PCH ports: | |
2970 | * - PCH PLLs | |
2971 | * - FDI training & RX/TX | |
2972 | * - update transcoder timings | |
2973 | * - DP transcoding bits | |
2974 | * - transcoder | |
2975 | */ | |
2976 | static void ironlake_pch_enable(struct drm_crtc *crtc) | |
0e23b99d JB |
2977 | { |
2978 | struct drm_device *dev = crtc->dev; | |
2979 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2980 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2981 | int pipe = intel_crtc->pipe; | |
ee7b9f93 | 2982 | u32 reg, temp; |
2c07245f | 2983 | |
e7e164db CW |
2984 | assert_transcoder_disabled(dev_priv, pipe); |
2985 | ||
c98e9dcf | 2986 | /* For PCH output, training FDI link */ |
674cf967 | 2987 | dev_priv->display.fdi_link_train(crtc); |
2c07245f | 2988 | |
6f13b7b5 CW |
2989 | intel_enable_pch_pll(intel_crtc); |
2990 | ||
e615efe4 ED |
2991 | if (HAS_PCH_LPT(dev)) { |
2992 | DRM_DEBUG_KMS("LPT detected: programming iCLKIP\n"); | |
2993 | lpt_program_iclkip(crtc); | |
2994 | } else if (HAS_PCH_CPT(dev)) { | |
ee7b9f93 | 2995 | u32 sel; |
4b645f14 | 2996 | |
c98e9dcf | 2997 | temp = I915_READ(PCH_DPLL_SEL); |
ee7b9f93 JB |
2998 | switch (pipe) { |
2999 | default: | |
3000 | case 0: | |
3001 | temp |= TRANSA_DPLL_ENABLE; | |
3002 | sel = TRANSA_DPLLB_SEL; | |
3003 | break; | |
3004 | case 1: | |
3005 | temp |= TRANSB_DPLL_ENABLE; | |
3006 | sel = TRANSB_DPLLB_SEL; | |
3007 | break; | |
3008 | case 2: | |
3009 | temp |= TRANSC_DPLL_ENABLE; | |
3010 | sel = TRANSC_DPLLB_SEL; | |
3011 | break; | |
d64311ab | 3012 | } |
ee7b9f93 JB |
3013 | if (intel_crtc->pch_pll->pll_reg == _PCH_DPLL_B) |
3014 | temp |= sel; | |
3015 | else | |
3016 | temp &= ~sel; | |
c98e9dcf | 3017 | I915_WRITE(PCH_DPLL_SEL, temp); |
c98e9dcf | 3018 | } |
5eddb70b | 3019 | |
d9b6cb56 JB |
3020 | /* set transcoder timing, panel must allow it */ |
3021 | assert_panel_unlocked(dev_priv, pipe); | |
5eddb70b CW |
3022 | I915_WRITE(TRANS_HTOTAL(pipe), I915_READ(HTOTAL(pipe))); |
3023 | I915_WRITE(TRANS_HBLANK(pipe), I915_READ(HBLANK(pipe))); | |
3024 | I915_WRITE(TRANS_HSYNC(pipe), I915_READ(HSYNC(pipe))); | |
8db9d77b | 3025 | |
5eddb70b CW |
3026 | I915_WRITE(TRANS_VTOTAL(pipe), I915_READ(VTOTAL(pipe))); |
3027 | I915_WRITE(TRANS_VBLANK(pipe), I915_READ(VBLANK(pipe))); | |
3028 | I915_WRITE(TRANS_VSYNC(pipe), I915_READ(VSYNC(pipe))); | |
0529a0d9 | 3029 | I915_WRITE(TRANS_VSYNCSHIFT(pipe), I915_READ(VSYNCSHIFT(pipe))); |
8db9d77b | 3030 | |
f57e1e3a ED |
3031 | if (!IS_HASWELL(dev)) |
3032 | intel_fdi_normal_train(crtc); | |
5e84e1a4 | 3033 | |
c98e9dcf JB |
3034 | /* For PCH DP, enable TRANS_DP_CTL */ |
3035 | if (HAS_PCH_CPT(dev) && | |
417e822d KP |
3036 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || |
3037 | intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) { | |
9325c9f0 | 3038 | u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) >> 5; |
5eddb70b CW |
3039 | reg = TRANS_DP_CTL(pipe); |
3040 | temp = I915_READ(reg); | |
3041 | temp &= ~(TRANS_DP_PORT_SEL_MASK | | |
220cad3c EA |
3042 | TRANS_DP_SYNC_MASK | |
3043 | TRANS_DP_BPC_MASK); | |
5eddb70b CW |
3044 | temp |= (TRANS_DP_OUTPUT_ENABLE | |
3045 | TRANS_DP_ENH_FRAMING); | |
9325c9f0 | 3046 | temp |= bpc << 9; /* same format but at 11:9 */ |
c98e9dcf JB |
3047 | |
3048 | if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) | |
5eddb70b | 3049 | temp |= TRANS_DP_HSYNC_ACTIVE_HIGH; |
c98e9dcf | 3050 | if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC) |
5eddb70b | 3051 | temp |= TRANS_DP_VSYNC_ACTIVE_HIGH; |
c98e9dcf JB |
3052 | |
3053 | switch (intel_trans_dp_port_sel(crtc)) { | |
3054 | case PCH_DP_B: | |
5eddb70b | 3055 | temp |= TRANS_DP_PORT_SEL_B; |
c98e9dcf JB |
3056 | break; |
3057 | case PCH_DP_C: | |
5eddb70b | 3058 | temp |= TRANS_DP_PORT_SEL_C; |
c98e9dcf JB |
3059 | break; |
3060 | case PCH_DP_D: | |
5eddb70b | 3061 | temp |= TRANS_DP_PORT_SEL_D; |
c98e9dcf JB |
3062 | break; |
3063 | default: | |
3064 | DRM_DEBUG_KMS("Wrong PCH DP port return. Guess port B\n"); | |
5eddb70b | 3065 | temp |= TRANS_DP_PORT_SEL_B; |
c98e9dcf | 3066 | break; |
32f9d658 | 3067 | } |
2c07245f | 3068 | |
5eddb70b | 3069 | I915_WRITE(reg, temp); |
6be4a607 | 3070 | } |
b52eb4dc | 3071 | |
040484af | 3072 | intel_enable_transcoder(dev_priv, pipe); |
f67a559d JB |
3073 | } |
3074 | ||
ee7b9f93 JB |
3075 | static void intel_put_pch_pll(struct intel_crtc *intel_crtc) |
3076 | { | |
3077 | struct intel_pch_pll *pll = intel_crtc->pch_pll; | |
3078 | ||
3079 | if (pll == NULL) | |
3080 | return; | |
3081 | ||
3082 | if (pll->refcount == 0) { | |
3083 | WARN(1, "bad PCH PLL refcount\n"); | |
3084 | return; | |
3085 | } | |
3086 | ||
3087 | --pll->refcount; | |
3088 | intel_crtc->pch_pll = NULL; | |
3089 | } | |
3090 | ||
3091 | static struct intel_pch_pll *intel_get_pch_pll(struct intel_crtc *intel_crtc, u32 dpll, u32 fp) | |
3092 | { | |
3093 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; | |
3094 | struct intel_pch_pll *pll; | |
3095 | int i; | |
3096 | ||
3097 | pll = intel_crtc->pch_pll; | |
3098 | if (pll) { | |
3099 | DRM_DEBUG_KMS("CRTC:%d reusing existing PCH PLL %x\n", | |
3100 | intel_crtc->base.base.id, pll->pll_reg); | |
3101 | goto prepare; | |
3102 | } | |
3103 | ||
98b6bd99 DV |
3104 | if (HAS_PCH_IBX(dev_priv->dev)) { |
3105 | /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */ | |
3106 | i = intel_crtc->pipe; | |
3107 | pll = &dev_priv->pch_plls[i]; | |
3108 | ||
3109 | DRM_DEBUG_KMS("CRTC:%d using pre-allocated PCH PLL %x\n", | |
3110 | intel_crtc->base.base.id, pll->pll_reg); | |
3111 | ||
3112 | goto found; | |
3113 | } | |
3114 | ||
ee7b9f93 JB |
3115 | for (i = 0; i < dev_priv->num_pch_pll; i++) { |
3116 | pll = &dev_priv->pch_plls[i]; | |
3117 | ||
3118 | /* Only want to check enabled timings first */ | |
3119 | if (pll->refcount == 0) | |
3120 | continue; | |
3121 | ||
3122 | if (dpll == (I915_READ(pll->pll_reg) & 0x7fffffff) && | |
3123 | fp == I915_READ(pll->fp0_reg)) { | |
3124 | DRM_DEBUG_KMS("CRTC:%d sharing existing PCH PLL %x (refcount %d, ative %d)\n", | |
3125 | intel_crtc->base.base.id, | |
3126 | pll->pll_reg, pll->refcount, pll->active); | |
3127 | ||
3128 | goto found; | |
3129 | } | |
3130 | } | |
3131 | ||
3132 | /* Ok no matching timings, maybe there's a free one? */ | |
3133 | for (i = 0; i < dev_priv->num_pch_pll; i++) { | |
3134 | pll = &dev_priv->pch_plls[i]; | |
3135 | if (pll->refcount == 0) { | |
3136 | DRM_DEBUG_KMS("CRTC:%d allocated PCH PLL %x\n", | |
3137 | intel_crtc->base.base.id, pll->pll_reg); | |
3138 | goto found; | |
3139 | } | |
3140 | } | |
3141 | ||
3142 | return NULL; | |
3143 | ||
3144 | found: | |
3145 | intel_crtc->pch_pll = pll; | |
3146 | pll->refcount++; | |
3147 | DRM_DEBUG_DRIVER("using pll %d for pipe %d\n", i, intel_crtc->pipe); | |
3148 | prepare: /* separate function? */ | |
3149 | DRM_DEBUG_DRIVER("switching PLL %x off\n", pll->pll_reg); | |
ee7b9f93 | 3150 | |
e04c7350 CW |
3151 | /* Wait for the clocks to stabilize before rewriting the regs */ |
3152 | I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE); | |
ee7b9f93 JB |
3153 | POSTING_READ(pll->pll_reg); |
3154 | udelay(150); | |
e04c7350 CW |
3155 | |
3156 | I915_WRITE(pll->fp0_reg, fp); | |
3157 | I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE); | |
ee7b9f93 JB |
3158 | pll->on = false; |
3159 | return pll; | |
3160 | } | |
3161 | ||
d4270e57 JB |
3162 | void intel_cpt_verify_modeset(struct drm_device *dev, int pipe) |
3163 | { | |
3164 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3165 | int dslreg = PIPEDSL(pipe), tc2reg = TRANS_CHICKEN2(pipe); | |
3166 | u32 temp; | |
3167 | ||
3168 | temp = I915_READ(dslreg); | |
3169 | udelay(500); | |
3170 | if (wait_for(I915_READ(dslreg) != temp, 5)) { | |
3171 | /* Without this, mode sets may fail silently on FDI */ | |
3172 | I915_WRITE(tc2reg, TRANS_AUTOTRAIN_GEN_STALL_DIS); | |
3173 | udelay(250); | |
3174 | I915_WRITE(tc2reg, 0); | |
3175 | if (wait_for(I915_READ(dslreg) != temp, 5)) | |
3176 | DRM_ERROR("mode set failed: pipe %d stuck\n", pipe); | |
3177 | } | |
3178 | } | |
3179 | ||
f67a559d JB |
3180 | static void ironlake_crtc_enable(struct drm_crtc *crtc) |
3181 | { | |
3182 | struct drm_device *dev = crtc->dev; | |
3183 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3184 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3185 | int pipe = intel_crtc->pipe; | |
3186 | int plane = intel_crtc->plane; | |
3187 | u32 temp; | |
3188 | bool is_pch_port; | |
3189 | ||
3190 | if (intel_crtc->active) | |
3191 | return; | |
3192 | ||
3193 | intel_crtc->active = true; | |
3194 | intel_update_watermarks(dev); | |
3195 | ||
3196 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
3197 | temp = I915_READ(PCH_LVDS); | |
3198 | if ((temp & LVDS_PORT_EN) == 0) | |
3199 | I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN); | |
3200 | } | |
3201 | ||
3202 | is_pch_port = intel_crtc_driving_pch(crtc); | |
3203 | ||
3204 | if (is_pch_port) | |
357555c0 | 3205 | ironlake_fdi_pll_enable(crtc); |
f67a559d JB |
3206 | else |
3207 | ironlake_fdi_disable(crtc); | |
3208 | ||
3209 | /* Enable panel fitting for LVDS */ | |
3210 | if (dev_priv->pch_pf_size && | |
3211 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) || HAS_eDP)) { | |
3212 | /* Force use of hard-coded filter coefficients | |
3213 | * as some pre-programmed values are broken, | |
3214 | * e.g. x201. | |
3215 | */ | |
9db4a9c7 JB |
3216 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3); |
3217 | I915_WRITE(PF_WIN_POS(pipe), dev_priv->pch_pf_pos); | |
3218 | I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size); | |
f67a559d JB |
3219 | } |
3220 | ||
9c54c0dd JB |
3221 | /* |
3222 | * On ILK+ LUT must be loaded before the pipe is running but with | |
3223 | * clocks enabled | |
3224 | */ | |
3225 | intel_crtc_load_lut(crtc); | |
3226 | ||
f67a559d JB |
3227 | intel_enable_pipe(dev_priv, pipe, is_pch_port); |
3228 | intel_enable_plane(dev_priv, plane, pipe); | |
3229 | ||
3230 | if (is_pch_port) | |
3231 | ironlake_pch_enable(crtc); | |
c98e9dcf | 3232 | |
d1ebd816 | 3233 | mutex_lock(&dev->struct_mutex); |
bed4a673 | 3234 | intel_update_fbc(dev); |
d1ebd816 BW |
3235 | mutex_unlock(&dev->struct_mutex); |
3236 | ||
6b383a7f | 3237 | intel_crtc_update_cursor(crtc, true); |
6be4a607 JB |
3238 | } |
3239 | ||
3240 | static void ironlake_crtc_disable(struct drm_crtc *crtc) | |
3241 | { | |
3242 | struct drm_device *dev = crtc->dev; | |
3243 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3244 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3245 | int pipe = intel_crtc->pipe; | |
3246 | int plane = intel_crtc->plane; | |
5eddb70b | 3247 | u32 reg, temp; |
b52eb4dc | 3248 | |
f7abfe8b CW |
3249 | if (!intel_crtc->active) |
3250 | return; | |
3251 | ||
e6c3a2a6 | 3252 | intel_crtc_wait_for_pending_flips(crtc); |
6be4a607 | 3253 | drm_vblank_off(dev, pipe); |
6b383a7f | 3254 | intel_crtc_update_cursor(crtc, false); |
5eddb70b | 3255 | |
b24e7179 | 3256 | intel_disable_plane(dev_priv, plane, pipe); |
913d8d11 | 3257 | |
973d04f9 CW |
3258 | if (dev_priv->cfb_plane == plane) |
3259 | intel_disable_fbc(dev); | |
2c07245f | 3260 | |
b24e7179 | 3261 | intel_disable_pipe(dev_priv, pipe); |
32f9d658 | 3262 | |
6be4a607 | 3263 | /* Disable PF */ |
9db4a9c7 JB |
3264 | I915_WRITE(PF_CTL(pipe), 0); |
3265 | I915_WRITE(PF_WIN_SZ(pipe), 0); | |
2c07245f | 3266 | |
0fc932b8 | 3267 | ironlake_fdi_disable(crtc); |
2c07245f | 3268 | |
47a05eca JB |
3269 | /* This is a horrible layering violation; we should be doing this in |
3270 | * the connector/encoder ->prepare instead, but we don't always have | |
3271 | * enough information there about the config to know whether it will | |
3272 | * actually be necessary or just cause undesired flicker. | |
3273 | */ | |
3274 | intel_disable_pch_ports(dev_priv, pipe); | |
249c0e64 | 3275 | |
040484af | 3276 | intel_disable_transcoder(dev_priv, pipe); |
913d8d11 | 3277 | |
6be4a607 JB |
3278 | if (HAS_PCH_CPT(dev)) { |
3279 | /* disable TRANS_DP_CTL */ | |
5eddb70b CW |
3280 | reg = TRANS_DP_CTL(pipe); |
3281 | temp = I915_READ(reg); | |
3282 | temp &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK); | |
cb3543c6 | 3283 | temp |= TRANS_DP_PORT_SEL_NONE; |
5eddb70b | 3284 | I915_WRITE(reg, temp); |
6be4a607 JB |
3285 | |
3286 | /* disable DPLL_SEL */ | |
3287 | temp = I915_READ(PCH_DPLL_SEL); | |
9db4a9c7 JB |
3288 | switch (pipe) { |
3289 | case 0: | |
d64311ab | 3290 | temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL); |
9db4a9c7 JB |
3291 | break; |
3292 | case 1: | |
6be4a607 | 3293 | temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); |
9db4a9c7 JB |
3294 | break; |
3295 | case 2: | |
4b645f14 | 3296 | /* C shares PLL A or B */ |
d64311ab | 3297 | temp &= ~(TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL); |
9db4a9c7 JB |
3298 | break; |
3299 | default: | |
3300 | BUG(); /* wtf */ | |
3301 | } | |
6be4a607 | 3302 | I915_WRITE(PCH_DPLL_SEL, temp); |
6be4a607 | 3303 | } |
e3421a18 | 3304 | |
6be4a607 | 3305 | /* disable PCH DPLL */ |
ee7b9f93 | 3306 | intel_disable_pch_pll(intel_crtc); |
8db9d77b | 3307 | |
6be4a607 | 3308 | /* Switch from PCDclk to Rawclk */ |
5eddb70b CW |
3309 | reg = FDI_RX_CTL(pipe); |
3310 | temp = I915_READ(reg); | |
3311 | I915_WRITE(reg, temp & ~FDI_PCDCLK); | |
8db9d77b | 3312 | |
6be4a607 | 3313 | /* Disable CPU FDI TX PLL */ |
5eddb70b CW |
3314 | reg = FDI_TX_CTL(pipe); |
3315 | temp = I915_READ(reg); | |
3316 | I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE); | |
3317 | ||
3318 | POSTING_READ(reg); | |
6be4a607 | 3319 | udelay(100); |
8db9d77b | 3320 | |
5eddb70b CW |
3321 | reg = FDI_RX_CTL(pipe); |
3322 | temp = I915_READ(reg); | |
3323 | I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE); | |
2c07245f | 3324 | |
6be4a607 | 3325 | /* Wait for the clocks to turn off. */ |
5eddb70b | 3326 | POSTING_READ(reg); |
6be4a607 | 3327 | udelay(100); |
6b383a7f | 3328 | |
f7abfe8b | 3329 | intel_crtc->active = false; |
6b383a7f | 3330 | intel_update_watermarks(dev); |
d1ebd816 BW |
3331 | |
3332 | mutex_lock(&dev->struct_mutex); | |
6b383a7f | 3333 | intel_update_fbc(dev); |
d1ebd816 | 3334 | mutex_unlock(&dev->struct_mutex); |
6be4a607 | 3335 | } |
1b3c7a47 | 3336 | |
6be4a607 JB |
3337 | static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) |
3338 | { | |
3339 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3340 | int pipe = intel_crtc->pipe; | |
3341 | int plane = intel_crtc->plane; | |
8db9d77b | 3342 | |
6be4a607 JB |
3343 | /* XXX: When our outputs are all unaware of DPMS modes other than off |
3344 | * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC. | |
3345 | */ | |
3346 | switch (mode) { | |
3347 | case DRM_MODE_DPMS_ON: | |
3348 | case DRM_MODE_DPMS_STANDBY: | |
3349 | case DRM_MODE_DPMS_SUSPEND: | |
3350 | DRM_DEBUG_KMS("crtc %d/%d dpms on\n", pipe, plane); | |
3351 | ironlake_crtc_enable(crtc); | |
3352 | break; | |
1b3c7a47 | 3353 | |
6be4a607 JB |
3354 | case DRM_MODE_DPMS_OFF: |
3355 | DRM_DEBUG_KMS("crtc %d/%d dpms off\n", pipe, plane); | |
3356 | ironlake_crtc_disable(crtc); | |
2c07245f ZW |
3357 | break; |
3358 | } | |
3359 | } | |
3360 | ||
ee7b9f93 JB |
3361 | static void ironlake_crtc_off(struct drm_crtc *crtc) |
3362 | { | |
3363 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3364 | intel_put_pch_pll(intel_crtc); | |
3365 | } | |
3366 | ||
02e792fb DV |
3367 | static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable) |
3368 | { | |
02e792fb | 3369 | if (!enable && intel_crtc->overlay) { |
23f09ce3 | 3370 | struct drm_device *dev = intel_crtc->base.dev; |
ce453d81 | 3371 | struct drm_i915_private *dev_priv = dev->dev_private; |
03f77ea5 | 3372 | |
23f09ce3 | 3373 | mutex_lock(&dev->struct_mutex); |
ce453d81 CW |
3374 | dev_priv->mm.interruptible = false; |
3375 | (void) intel_overlay_switch_off(intel_crtc->overlay); | |
3376 | dev_priv->mm.interruptible = true; | |
23f09ce3 | 3377 | mutex_unlock(&dev->struct_mutex); |
02e792fb | 3378 | } |
02e792fb | 3379 | |
5dcdbcb0 CW |
3380 | /* Let userspace switch the overlay on again. In most cases userspace |
3381 | * has to recompute where to put it anyway. | |
3382 | */ | |
02e792fb DV |
3383 | } |
3384 | ||
0b8765c6 | 3385 | static void i9xx_crtc_enable(struct drm_crtc *crtc) |
79e53945 JB |
3386 | { |
3387 | struct drm_device *dev = crtc->dev; | |
79e53945 JB |
3388 | struct drm_i915_private *dev_priv = dev->dev_private; |
3389 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3390 | int pipe = intel_crtc->pipe; | |
80824003 | 3391 | int plane = intel_crtc->plane; |
79e53945 | 3392 | |
f7abfe8b CW |
3393 | if (intel_crtc->active) |
3394 | return; | |
3395 | ||
3396 | intel_crtc->active = true; | |
6b383a7f CW |
3397 | intel_update_watermarks(dev); |
3398 | ||
63d7bbe9 | 3399 | intel_enable_pll(dev_priv, pipe); |
040484af | 3400 | intel_enable_pipe(dev_priv, pipe, false); |
b24e7179 | 3401 | intel_enable_plane(dev_priv, plane, pipe); |
79e53945 | 3402 | |
0b8765c6 | 3403 | intel_crtc_load_lut(crtc); |
bed4a673 | 3404 | intel_update_fbc(dev); |
79e53945 | 3405 | |
0b8765c6 JB |
3406 | /* Give the overlay scaler a chance to enable if it's on this pipe */ |
3407 | intel_crtc_dpms_overlay(intel_crtc, true); | |
6b383a7f | 3408 | intel_crtc_update_cursor(crtc, true); |
0b8765c6 | 3409 | } |
79e53945 | 3410 | |
0b8765c6 JB |
3411 | static void i9xx_crtc_disable(struct drm_crtc *crtc) |
3412 | { | |
3413 | struct drm_device *dev = crtc->dev; | |
3414 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3415 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3416 | int pipe = intel_crtc->pipe; | |
3417 | int plane = intel_crtc->plane; | |
b690e96c | 3418 | |
f7abfe8b CW |
3419 | if (!intel_crtc->active) |
3420 | return; | |
3421 | ||
0b8765c6 | 3422 | /* Give the overlay scaler a chance to disable if it's on this pipe */ |
e6c3a2a6 CW |
3423 | intel_crtc_wait_for_pending_flips(crtc); |
3424 | drm_vblank_off(dev, pipe); | |
0b8765c6 | 3425 | intel_crtc_dpms_overlay(intel_crtc, false); |
6b383a7f | 3426 | intel_crtc_update_cursor(crtc, false); |
0b8765c6 | 3427 | |
973d04f9 CW |
3428 | if (dev_priv->cfb_plane == plane) |
3429 | intel_disable_fbc(dev); | |
79e53945 | 3430 | |
b24e7179 | 3431 | intel_disable_plane(dev_priv, plane, pipe); |
b24e7179 | 3432 | intel_disable_pipe(dev_priv, pipe); |
63d7bbe9 | 3433 | intel_disable_pll(dev_priv, pipe); |
0b8765c6 | 3434 | |
f7abfe8b | 3435 | intel_crtc->active = false; |
6b383a7f CW |
3436 | intel_update_fbc(dev); |
3437 | intel_update_watermarks(dev); | |
0b8765c6 JB |
3438 | } |
3439 | ||
3440 | static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode) | |
3441 | { | |
3442 | /* XXX: When our outputs are all unaware of DPMS modes other than off | |
3443 | * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC. | |
3444 | */ | |
3445 | switch (mode) { | |
3446 | case DRM_MODE_DPMS_ON: | |
3447 | case DRM_MODE_DPMS_STANDBY: | |
3448 | case DRM_MODE_DPMS_SUSPEND: | |
3449 | i9xx_crtc_enable(crtc); | |
3450 | break; | |
3451 | case DRM_MODE_DPMS_OFF: | |
3452 | i9xx_crtc_disable(crtc); | |
79e53945 JB |
3453 | break; |
3454 | } | |
2c07245f ZW |
3455 | } |
3456 | ||
ee7b9f93 JB |
3457 | static void i9xx_crtc_off(struct drm_crtc *crtc) |
3458 | { | |
3459 | } | |
3460 | ||
2c07245f ZW |
3461 | /** |
3462 | * Sets the power management mode of the pipe and plane. | |
2c07245f ZW |
3463 | */ |
3464 | static void intel_crtc_dpms(struct drm_crtc *crtc, int mode) | |
3465 | { | |
3466 | struct drm_device *dev = crtc->dev; | |
e70236a8 | 3467 | struct drm_i915_private *dev_priv = dev->dev_private; |
2c07245f ZW |
3468 | struct drm_i915_master_private *master_priv; |
3469 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3470 | int pipe = intel_crtc->pipe; | |
3471 | bool enabled; | |
3472 | ||
032d2a0d CW |
3473 | if (intel_crtc->dpms_mode == mode) |
3474 | return; | |
3475 | ||
65655d4a | 3476 | intel_crtc->dpms_mode = mode; |
debcaddc | 3477 | |
e70236a8 | 3478 | dev_priv->display.dpms(crtc, mode); |
79e53945 JB |
3479 | |
3480 | if (!dev->primary->master) | |
3481 | return; | |
3482 | ||
3483 | master_priv = dev->primary->master->driver_priv; | |
3484 | if (!master_priv->sarea_priv) | |
3485 | return; | |
3486 | ||
3487 | enabled = crtc->enabled && mode != DRM_MODE_DPMS_OFF; | |
3488 | ||
3489 | switch (pipe) { | |
3490 | case 0: | |
3491 | master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0; | |
3492 | master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0; | |
3493 | break; | |
3494 | case 1: | |
3495 | master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0; | |
3496 | master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0; | |
3497 | break; | |
3498 | default: | |
9db4a9c7 | 3499 | DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe)); |
79e53945 JB |
3500 | break; |
3501 | } | |
79e53945 JB |
3502 | } |
3503 | ||
cdd59983 CW |
3504 | static void intel_crtc_disable(struct drm_crtc *crtc) |
3505 | { | |
3506 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
3507 | struct drm_device *dev = crtc->dev; | |
ee7b9f93 | 3508 | struct drm_i915_private *dev_priv = dev->dev_private; |
cdd59983 CW |
3509 | |
3510 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF); | |
ee7b9f93 JB |
3511 | dev_priv->display.off(crtc); |
3512 | ||
931872fc CW |
3513 | assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane); |
3514 | assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe); | |
cdd59983 CW |
3515 | |
3516 | if (crtc->fb) { | |
3517 | mutex_lock(&dev->struct_mutex); | |
1690e1eb | 3518 | intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj); |
cdd59983 CW |
3519 | mutex_unlock(&dev->struct_mutex); |
3520 | } | |
3521 | } | |
3522 | ||
7e7d76c3 JB |
3523 | /* Prepare for a mode set. |
3524 | * | |
3525 | * Note we could be a lot smarter here. We need to figure out which outputs | |
3526 | * will be enabled, which disabled (in short, how the config will changes) | |
3527 | * and perform the minimum necessary steps to accomplish that, e.g. updating | |
3528 | * watermarks, FBC configuration, making sure PLLs are programmed correctly, | |
3529 | * panel fitting is in the proper state, etc. | |
3530 | */ | |
3531 | static void i9xx_crtc_prepare(struct drm_crtc *crtc) | |
79e53945 | 3532 | { |
7e7d76c3 | 3533 | i9xx_crtc_disable(crtc); |
79e53945 JB |
3534 | } |
3535 | ||
7e7d76c3 | 3536 | static void i9xx_crtc_commit(struct drm_crtc *crtc) |
79e53945 | 3537 | { |
7e7d76c3 | 3538 | i9xx_crtc_enable(crtc); |
7e7d76c3 JB |
3539 | } |
3540 | ||
3541 | static void ironlake_crtc_prepare(struct drm_crtc *crtc) | |
3542 | { | |
7e7d76c3 | 3543 | ironlake_crtc_disable(crtc); |
7e7d76c3 JB |
3544 | } |
3545 | ||
3546 | static void ironlake_crtc_commit(struct drm_crtc *crtc) | |
3547 | { | |
7e7d76c3 | 3548 | ironlake_crtc_enable(crtc); |
79e53945 JB |
3549 | } |
3550 | ||
0206e353 | 3551 | void intel_encoder_prepare(struct drm_encoder *encoder) |
79e53945 JB |
3552 | { |
3553 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
3554 | /* lvds has its own version of prepare see intel_lvds_prepare */ | |
3555 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_OFF); | |
3556 | } | |
3557 | ||
0206e353 | 3558 | void intel_encoder_commit(struct drm_encoder *encoder) |
79e53945 JB |
3559 | { |
3560 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
d4270e57 | 3561 | struct drm_device *dev = encoder->dev; |
d47d7cb8 | 3562 | struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc); |
d4270e57 | 3563 | |
79e53945 JB |
3564 | /* lvds has its own version of commit see intel_lvds_commit */ |
3565 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); | |
d4270e57 JB |
3566 | |
3567 | if (HAS_PCH_CPT(dev)) | |
3568 | intel_cpt_verify_modeset(dev, intel_crtc->pipe); | |
79e53945 JB |
3569 | } |
3570 | ||
ea5b213a CW |
3571 | void intel_encoder_destroy(struct drm_encoder *encoder) |
3572 | { | |
4ef69c7a | 3573 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); |
ea5b213a | 3574 | |
ea5b213a CW |
3575 | drm_encoder_cleanup(encoder); |
3576 | kfree(intel_encoder); | |
3577 | } | |
3578 | ||
79e53945 JB |
3579 | static bool intel_crtc_mode_fixup(struct drm_crtc *crtc, |
3580 | struct drm_display_mode *mode, | |
3581 | struct drm_display_mode *adjusted_mode) | |
3582 | { | |
2c07245f | 3583 | struct drm_device *dev = crtc->dev; |
89749350 | 3584 | |
bad720ff | 3585 | if (HAS_PCH_SPLIT(dev)) { |
2c07245f | 3586 | /* FDI link clock is fixed at 2.7G */ |
2377b741 JB |
3587 | if (mode->clock * 3 > IRONLAKE_FDI_FREQ * 4) |
3588 | return false; | |
2c07245f | 3589 | } |
89749350 | 3590 | |
f9bef081 DV |
3591 | /* All interlaced capable intel hw wants timings in frames. Note though |
3592 | * that intel_lvds_mode_fixup does some funny tricks with the crtc | |
3593 | * timings, so we need to be careful not to clobber these.*/ | |
3594 | if (!(adjusted_mode->private_flags & INTEL_MODE_CRTC_TIMINGS_SET)) | |
3595 | drm_mode_set_crtcinfo(adjusted_mode, 0); | |
89749350 | 3596 | |
79e53945 JB |
3597 | return true; |
3598 | } | |
3599 | ||
25eb05fc JB |
3600 | static int valleyview_get_display_clock_speed(struct drm_device *dev) |
3601 | { | |
3602 | return 400000; /* FIXME */ | |
3603 | } | |
3604 | ||
e70236a8 JB |
3605 | static int i945_get_display_clock_speed(struct drm_device *dev) |
3606 | { | |
3607 | return 400000; | |
3608 | } | |
79e53945 | 3609 | |
e70236a8 | 3610 | static int i915_get_display_clock_speed(struct drm_device *dev) |
79e53945 | 3611 | { |
e70236a8 JB |
3612 | return 333000; |
3613 | } | |
79e53945 | 3614 | |
e70236a8 JB |
3615 | static int i9xx_misc_get_display_clock_speed(struct drm_device *dev) |
3616 | { | |
3617 | return 200000; | |
3618 | } | |
79e53945 | 3619 | |
e70236a8 JB |
3620 | static int i915gm_get_display_clock_speed(struct drm_device *dev) |
3621 | { | |
3622 | u16 gcfgc = 0; | |
79e53945 | 3623 | |
e70236a8 JB |
3624 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); |
3625 | ||
3626 | if (gcfgc & GC_LOW_FREQUENCY_ENABLE) | |
3627 | return 133000; | |
3628 | else { | |
3629 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
3630 | case GC_DISPLAY_CLOCK_333_MHZ: | |
3631 | return 333000; | |
3632 | default: | |
3633 | case GC_DISPLAY_CLOCK_190_200_MHZ: | |
3634 | return 190000; | |
79e53945 | 3635 | } |
e70236a8 JB |
3636 | } |
3637 | } | |
3638 | ||
3639 | static int i865_get_display_clock_speed(struct drm_device *dev) | |
3640 | { | |
3641 | return 266000; | |
3642 | } | |
3643 | ||
3644 | static int i855_get_display_clock_speed(struct drm_device *dev) | |
3645 | { | |
3646 | u16 hpllcc = 0; | |
3647 | /* Assume that the hardware is in the high speed state. This | |
3648 | * should be the default. | |
3649 | */ | |
3650 | switch (hpllcc & GC_CLOCK_CONTROL_MASK) { | |
3651 | case GC_CLOCK_133_200: | |
3652 | case GC_CLOCK_100_200: | |
3653 | return 200000; | |
3654 | case GC_CLOCK_166_250: | |
3655 | return 250000; | |
3656 | case GC_CLOCK_100_133: | |
79e53945 | 3657 | return 133000; |
e70236a8 | 3658 | } |
79e53945 | 3659 | |
e70236a8 JB |
3660 | /* Shouldn't happen */ |
3661 | return 0; | |
3662 | } | |
79e53945 | 3663 | |
e70236a8 JB |
3664 | static int i830_get_display_clock_speed(struct drm_device *dev) |
3665 | { | |
3666 | return 133000; | |
79e53945 JB |
3667 | } |
3668 | ||
2c07245f ZW |
3669 | struct fdi_m_n { |
3670 | u32 tu; | |
3671 | u32 gmch_m; | |
3672 | u32 gmch_n; | |
3673 | u32 link_m; | |
3674 | u32 link_n; | |
3675 | }; | |
3676 | ||
3677 | static void | |
3678 | fdi_reduce_ratio(u32 *num, u32 *den) | |
3679 | { | |
3680 | while (*num > 0xffffff || *den > 0xffffff) { | |
3681 | *num >>= 1; | |
3682 | *den >>= 1; | |
3683 | } | |
3684 | } | |
3685 | ||
2c07245f | 3686 | static void |
f2b115e6 AJ |
3687 | ironlake_compute_m_n(int bits_per_pixel, int nlanes, int pixel_clock, |
3688 | int link_clock, struct fdi_m_n *m_n) | |
2c07245f | 3689 | { |
2c07245f ZW |
3690 | m_n->tu = 64; /* default size */ |
3691 | ||
22ed1113 CW |
3692 | /* BUG_ON(pixel_clock > INT_MAX / 36); */ |
3693 | m_n->gmch_m = bits_per_pixel * pixel_clock; | |
3694 | m_n->gmch_n = link_clock * nlanes * 8; | |
2c07245f ZW |
3695 | fdi_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n); |
3696 | ||
22ed1113 CW |
3697 | m_n->link_m = pixel_clock; |
3698 | m_n->link_n = link_clock; | |
2c07245f ZW |
3699 | fdi_reduce_ratio(&m_n->link_m, &m_n->link_n); |
3700 | } | |
3701 | ||
a7615030 CW |
3702 | static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) |
3703 | { | |
72bbe58c KP |
3704 | if (i915_panel_use_ssc >= 0) |
3705 | return i915_panel_use_ssc != 0; | |
3706 | return dev_priv->lvds_use_ssc | |
435793df | 3707 | && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE); |
a7615030 CW |
3708 | } |
3709 | ||
5a354204 JB |
3710 | /** |
3711 | * intel_choose_pipe_bpp_dither - figure out what color depth the pipe should send | |
3712 | * @crtc: CRTC structure | |
3b5c78a3 | 3713 | * @mode: requested mode |
5a354204 JB |
3714 | * |
3715 | * A pipe may be connected to one or more outputs. Based on the depth of the | |
3716 | * attached framebuffer, choose a good color depth to use on the pipe. | |
3717 | * | |
3718 | * If possible, match the pipe depth to the fb depth. In some cases, this | |
3719 | * isn't ideal, because the connected output supports a lesser or restricted | |
3720 | * set of depths. Resolve that here: | |
3721 | * LVDS typically supports only 6bpc, so clamp down in that case | |
3722 | * HDMI supports only 8bpc or 12bpc, so clamp to 8bpc with dither for 10bpc | |
3723 | * Displays may support a restricted set as well, check EDID and clamp as | |
3724 | * appropriate. | |
3b5c78a3 | 3725 | * DP may want to dither down to 6bpc to fit larger modes |
5a354204 JB |
3726 | * |
3727 | * RETURNS: | |
3728 | * Dithering requirement (i.e. false if display bpc and pipe bpc match, | |
3729 | * true if they don't match). | |
3730 | */ | |
3731 | static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc, | |
3b5c78a3 AJ |
3732 | unsigned int *pipe_bpp, |
3733 | struct drm_display_mode *mode) | |
5a354204 JB |
3734 | { |
3735 | struct drm_device *dev = crtc->dev; | |
3736 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3737 | struct drm_encoder *encoder; | |
3738 | struct drm_connector *connector; | |
3739 | unsigned int display_bpc = UINT_MAX, bpc; | |
3740 | ||
3741 | /* Walk the encoders & connectors on this crtc, get min bpc */ | |
3742 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
3743 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); | |
3744 | ||
3745 | if (encoder->crtc != crtc) | |
3746 | continue; | |
3747 | ||
3748 | if (intel_encoder->type == INTEL_OUTPUT_LVDS) { | |
3749 | unsigned int lvds_bpc; | |
3750 | ||
3751 | if ((I915_READ(PCH_LVDS) & LVDS_A3_POWER_MASK) == | |
3752 | LVDS_A3_POWER_UP) | |
3753 | lvds_bpc = 8; | |
3754 | else | |
3755 | lvds_bpc = 6; | |
3756 | ||
3757 | if (lvds_bpc < display_bpc) { | |
82820490 | 3758 | DRM_DEBUG_KMS("clamping display bpc (was %d) to LVDS (%d)\n", display_bpc, lvds_bpc); |
5a354204 JB |
3759 | display_bpc = lvds_bpc; |
3760 | } | |
3761 | continue; | |
3762 | } | |
3763 | ||
3764 | if (intel_encoder->type == INTEL_OUTPUT_EDP) { | |
3765 | /* Use VBT settings if we have an eDP panel */ | |
3766 | unsigned int edp_bpc = dev_priv->edp.bpp / 3; | |
3767 | ||
3768 | if (edp_bpc < display_bpc) { | |
82820490 | 3769 | DRM_DEBUG_KMS("clamping display bpc (was %d) to eDP (%d)\n", display_bpc, edp_bpc); |
5a354204 JB |
3770 | display_bpc = edp_bpc; |
3771 | } | |
3772 | continue; | |
3773 | } | |
3774 | ||
3775 | /* Not one of the known troublemakers, check the EDID */ | |
3776 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
3777 | head) { | |
3778 | if (connector->encoder != encoder) | |
3779 | continue; | |
3780 | ||
62ac41a6 JB |
3781 | /* Don't use an invalid EDID bpc value */ |
3782 | if (connector->display_info.bpc && | |
3783 | connector->display_info.bpc < display_bpc) { | |
82820490 | 3784 | DRM_DEBUG_KMS("clamping display bpc (was %d) to EDID reported max of %d\n", display_bpc, connector->display_info.bpc); |
5a354204 JB |
3785 | display_bpc = connector->display_info.bpc; |
3786 | } | |
3787 | } | |
3788 | ||
3789 | /* | |
3790 | * HDMI is either 12 or 8, so if the display lets 10bpc sneak | |
3791 | * through, clamp it down. (Note: >12bpc will be caught below.) | |
3792 | */ | |
3793 | if (intel_encoder->type == INTEL_OUTPUT_HDMI) { | |
3794 | if (display_bpc > 8 && display_bpc < 12) { | |
82820490 | 3795 | DRM_DEBUG_KMS("forcing bpc to 12 for HDMI\n"); |
5a354204 JB |
3796 | display_bpc = 12; |
3797 | } else { | |
82820490 | 3798 | DRM_DEBUG_KMS("forcing bpc to 8 for HDMI\n"); |
5a354204 JB |
3799 | display_bpc = 8; |
3800 | } | |
3801 | } | |
3802 | } | |
3803 | ||
3b5c78a3 AJ |
3804 | if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) { |
3805 | DRM_DEBUG_KMS("Dithering DP to 6bpc\n"); | |
3806 | display_bpc = 6; | |
3807 | } | |
3808 | ||
5a354204 JB |
3809 | /* |
3810 | * We could just drive the pipe at the highest bpc all the time and | |
3811 | * enable dithering as needed, but that costs bandwidth. So choose | |
3812 | * the minimum value that expresses the full color range of the fb but | |
3813 | * also stays within the max display bpc discovered above. | |
3814 | */ | |
3815 | ||
3816 | switch (crtc->fb->depth) { | |
3817 | case 8: | |
3818 | bpc = 8; /* since we go through a colormap */ | |
3819 | break; | |
3820 | case 15: | |
3821 | case 16: | |
3822 | bpc = 6; /* min is 18bpp */ | |
3823 | break; | |
3824 | case 24: | |
578393cd | 3825 | bpc = 8; |
5a354204 JB |
3826 | break; |
3827 | case 30: | |
578393cd | 3828 | bpc = 10; |
5a354204 JB |
3829 | break; |
3830 | case 48: | |
578393cd | 3831 | bpc = 12; |
5a354204 JB |
3832 | break; |
3833 | default: | |
3834 | DRM_DEBUG("unsupported depth, assuming 24 bits\n"); | |
3835 | bpc = min((unsigned int)8, display_bpc); | |
3836 | break; | |
3837 | } | |
3838 | ||
578393cd KP |
3839 | display_bpc = min(display_bpc, bpc); |
3840 | ||
82820490 AJ |
3841 | DRM_DEBUG_KMS("setting pipe bpc to %d (max display bpc %d)\n", |
3842 | bpc, display_bpc); | |
5a354204 | 3843 | |
578393cd | 3844 | *pipe_bpp = display_bpc * 3; |
5a354204 JB |
3845 | |
3846 | return display_bpc != bpc; | |
3847 | } | |
3848 | ||
a0c4da24 JB |
3849 | static int vlv_get_refclk(struct drm_crtc *crtc) |
3850 | { | |
3851 | struct drm_device *dev = crtc->dev; | |
3852 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3853 | int refclk = 27000; /* for DP & HDMI */ | |
3854 | ||
3855 | return 100000; /* only one validated so far */ | |
3856 | ||
3857 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { | |
3858 | refclk = 96000; | |
3859 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
3860 | if (intel_panel_use_ssc(dev_priv)) | |
3861 | refclk = 100000; | |
3862 | else | |
3863 | refclk = 96000; | |
3864 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) { | |
3865 | refclk = 100000; | |
3866 | } | |
3867 | ||
3868 | return refclk; | |
3869 | } | |
3870 | ||
c65d77d8 JB |
3871 | static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors) |
3872 | { | |
3873 | struct drm_device *dev = crtc->dev; | |
3874 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3875 | int refclk; | |
3876 | ||
a0c4da24 JB |
3877 | if (IS_VALLEYVIEW(dev)) { |
3878 | refclk = vlv_get_refclk(crtc); | |
3879 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
c65d77d8 JB |
3880 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) { |
3881 | refclk = dev_priv->lvds_ssc_freq * 1000; | |
3882 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", | |
3883 | refclk / 1000); | |
3884 | } else if (!IS_GEN2(dev)) { | |
3885 | refclk = 96000; | |
3886 | } else { | |
3887 | refclk = 48000; | |
3888 | } | |
3889 | ||
3890 | return refclk; | |
3891 | } | |
3892 | ||
3893 | static void i9xx_adjust_sdvo_tv_clock(struct drm_display_mode *adjusted_mode, | |
3894 | intel_clock_t *clock) | |
3895 | { | |
3896 | /* SDVO TV has fixed PLL values depend on its clock range, | |
3897 | this mirrors vbios setting. */ | |
3898 | if (adjusted_mode->clock >= 100000 | |
3899 | && adjusted_mode->clock < 140500) { | |
3900 | clock->p1 = 2; | |
3901 | clock->p2 = 10; | |
3902 | clock->n = 3; | |
3903 | clock->m1 = 16; | |
3904 | clock->m2 = 8; | |
3905 | } else if (adjusted_mode->clock >= 140500 | |
3906 | && adjusted_mode->clock <= 200000) { | |
3907 | clock->p1 = 1; | |
3908 | clock->p2 = 10; | |
3909 | clock->n = 6; | |
3910 | clock->m1 = 12; | |
3911 | clock->m2 = 8; | |
3912 | } | |
3913 | } | |
3914 | ||
a7516a05 JB |
3915 | static void i9xx_update_pll_dividers(struct drm_crtc *crtc, |
3916 | intel_clock_t *clock, | |
3917 | intel_clock_t *reduced_clock) | |
3918 | { | |
3919 | struct drm_device *dev = crtc->dev; | |
3920 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3921 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3922 | int pipe = intel_crtc->pipe; | |
3923 | u32 fp, fp2 = 0; | |
3924 | ||
3925 | if (IS_PINEVIEW(dev)) { | |
3926 | fp = (1 << clock->n) << 16 | clock->m1 << 8 | clock->m2; | |
3927 | if (reduced_clock) | |
3928 | fp2 = (1 << reduced_clock->n) << 16 | | |
3929 | reduced_clock->m1 << 8 | reduced_clock->m2; | |
3930 | } else { | |
3931 | fp = clock->n << 16 | clock->m1 << 8 | clock->m2; | |
3932 | if (reduced_clock) | |
3933 | fp2 = reduced_clock->n << 16 | reduced_clock->m1 << 8 | | |
3934 | reduced_clock->m2; | |
3935 | } | |
3936 | ||
3937 | I915_WRITE(FP0(pipe), fp); | |
3938 | ||
3939 | intel_crtc->lowfreq_avail = false; | |
3940 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
3941 | reduced_clock && i915_powersave) { | |
3942 | I915_WRITE(FP1(pipe), fp2); | |
3943 | intel_crtc->lowfreq_avail = true; | |
3944 | } else { | |
3945 | I915_WRITE(FP1(pipe), fp); | |
3946 | } | |
3947 | } | |
3948 | ||
93e537a1 DV |
3949 | static void intel_update_lvds(struct drm_crtc *crtc, intel_clock_t *clock, |
3950 | struct drm_display_mode *adjusted_mode) | |
3951 | { | |
3952 | struct drm_device *dev = crtc->dev; | |
3953 | struct drm_i915_private *dev_priv = dev->dev_private; | |
3954 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
3955 | int pipe = intel_crtc->pipe; | |
284d5df5 | 3956 | u32 temp; |
93e537a1 DV |
3957 | |
3958 | temp = I915_READ(LVDS); | |
3959 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; | |
3960 | if (pipe == 1) { | |
3961 | temp |= LVDS_PIPEB_SELECT; | |
3962 | } else { | |
3963 | temp &= ~LVDS_PIPEB_SELECT; | |
3964 | } | |
3965 | /* set the corresponsding LVDS_BORDER bit */ | |
3966 | temp |= dev_priv->lvds_border_bits; | |
3967 | /* Set the B0-B3 data pairs corresponding to whether we're going to | |
3968 | * set the DPLLs for dual-channel mode or not. | |
3969 | */ | |
3970 | if (clock->p2 == 7) | |
3971 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; | |
3972 | else | |
3973 | temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); | |
3974 | ||
3975 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) | |
3976 | * appropriately here, but we need to look more thoroughly into how | |
3977 | * panels behave in the two modes. | |
3978 | */ | |
3979 | /* set the dithering flag on LVDS as needed */ | |
3980 | if (INTEL_INFO(dev)->gen >= 4) { | |
3981 | if (dev_priv->lvds_dither) | |
3982 | temp |= LVDS_ENABLE_DITHER; | |
3983 | else | |
3984 | temp &= ~LVDS_ENABLE_DITHER; | |
3985 | } | |
284d5df5 | 3986 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); |
93e537a1 | 3987 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) |
284d5df5 | 3988 | temp |= LVDS_HSYNC_POLARITY; |
93e537a1 | 3989 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) |
284d5df5 | 3990 | temp |= LVDS_VSYNC_POLARITY; |
93e537a1 DV |
3991 | I915_WRITE(LVDS, temp); |
3992 | } | |
3993 | ||
a0c4da24 JB |
3994 | static void vlv_update_pll(struct drm_crtc *crtc, |
3995 | struct drm_display_mode *mode, | |
3996 | struct drm_display_mode *adjusted_mode, | |
3997 | intel_clock_t *clock, intel_clock_t *reduced_clock, | |
3998 | int refclk, int num_connectors) | |
3999 | { | |
4000 | struct drm_device *dev = crtc->dev; | |
4001 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4002 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4003 | int pipe = intel_crtc->pipe; | |
4004 | u32 dpll, mdiv, pdiv; | |
4005 | u32 bestn, bestm1, bestm2, bestp1, bestp2; | |
4006 | bool is_hdmi; | |
4007 | ||
4008 | is_hdmi = intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI); | |
4009 | ||
4010 | bestn = clock->n; | |
4011 | bestm1 = clock->m1; | |
4012 | bestm2 = clock->m2; | |
4013 | bestp1 = clock->p1; | |
4014 | bestp2 = clock->p2; | |
4015 | ||
4016 | /* Enable DPIO clock input */ | |
4017 | dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REFA_CLK_ENABLE_VLV | | |
4018 | DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_CLOCK_VLV; | |
4019 | I915_WRITE(DPLL(pipe), dpll); | |
4020 | POSTING_READ(DPLL(pipe)); | |
4021 | ||
4022 | mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK)); | |
4023 | mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT)); | |
4024 | mdiv |= ((bestn << DPIO_N_SHIFT)); | |
4025 | mdiv |= (1 << DPIO_POST_DIV_SHIFT); | |
4026 | mdiv |= (1 << DPIO_K_SHIFT); | |
4027 | mdiv |= DPIO_ENABLE_CALIBRATION; | |
4028 | intel_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv); | |
4029 | ||
4030 | intel_dpio_write(dev_priv, DPIO_CORE_CLK(pipe), 0x01000000); | |
4031 | ||
4032 | pdiv = DPIO_REFSEL_OVERRIDE | (5 << DPIO_PLL_MODESEL_SHIFT) | | |
4033 | (3 << DPIO_BIAS_CURRENT_CTL_SHIFT) | (1<<20) | | |
4034 | (8 << DPIO_DRIVER_CTL_SHIFT) | (5 << DPIO_CLK_BIAS_CTL_SHIFT); | |
4035 | intel_dpio_write(dev_priv, DPIO_REFSFR(pipe), pdiv); | |
4036 | ||
4037 | intel_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe), 0x009f0051); | |
4038 | ||
4039 | dpll |= DPLL_VCO_ENABLE; | |
4040 | I915_WRITE(DPLL(pipe), dpll); | |
4041 | POSTING_READ(DPLL(pipe)); | |
4042 | if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1)) | |
4043 | DRM_ERROR("DPLL %d failed to lock\n", pipe); | |
4044 | ||
4045 | if (is_hdmi) { | |
4046 | u32 temp = intel_mode_get_pixel_multiplier(adjusted_mode); | |
4047 | ||
4048 | if (temp > 1) | |
4049 | temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
4050 | else | |
4051 | temp = 0; | |
4052 | ||
4053 | I915_WRITE(DPLL_MD(pipe), temp); | |
4054 | POSTING_READ(DPLL_MD(pipe)); | |
4055 | } | |
4056 | ||
4057 | intel_dpio_write(dev_priv, DPIO_FASTCLK_DISABLE, 0x641); /* ??? */ | |
4058 | } | |
4059 | ||
eb1cbe48 DV |
4060 | static void i9xx_update_pll(struct drm_crtc *crtc, |
4061 | struct drm_display_mode *mode, | |
4062 | struct drm_display_mode *adjusted_mode, | |
4063 | intel_clock_t *clock, intel_clock_t *reduced_clock, | |
4064 | int num_connectors) | |
4065 | { | |
4066 | struct drm_device *dev = crtc->dev; | |
4067 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4068 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4069 | int pipe = intel_crtc->pipe; | |
4070 | u32 dpll; | |
4071 | bool is_sdvo; | |
4072 | ||
4073 | is_sdvo = intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO) || | |
4074 | intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI); | |
4075 | ||
4076 | dpll = DPLL_VGA_MODE_DIS; | |
4077 | ||
4078 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
4079 | dpll |= DPLLB_MODE_LVDS; | |
4080 | else | |
4081 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
4082 | if (is_sdvo) { | |
4083 | int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); | |
4084 | if (pixel_multiplier > 1) { | |
4085 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) | |
4086 | dpll |= (pixel_multiplier - 1) << SDVO_MULTIPLIER_SHIFT_HIRES; | |
4087 | } | |
4088 | dpll |= DPLL_DVO_HIGH_SPEED; | |
4089 | } | |
4090 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) | |
4091 | dpll |= DPLL_DVO_HIGH_SPEED; | |
4092 | ||
4093 | /* compute bitmask from p1 value */ | |
4094 | if (IS_PINEVIEW(dev)) | |
4095 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW; | |
4096 | else { | |
4097 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4098 | if (IS_G4X(dev) && reduced_clock) | |
4099 | dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
4100 | } | |
4101 | switch (clock->p2) { | |
4102 | case 5: | |
4103 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
4104 | break; | |
4105 | case 7: | |
4106 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
4107 | break; | |
4108 | case 10: | |
4109 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
4110 | break; | |
4111 | case 14: | |
4112 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
4113 | break; | |
4114 | } | |
4115 | if (INTEL_INFO(dev)->gen >= 4) | |
4116 | dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT); | |
4117 | ||
4118 | if (is_sdvo && intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) | |
4119 | dpll |= PLL_REF_INPUT_TVCLKINBC; | |
4120 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) | |
4121 | /* XXX: just matching BIOS for now */ | |
4122 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ | |
4123 | dpll |= 3; | |
4124 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
4125 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) | |
4126 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
4127 | else | |
4128 | dpll |= PLL_REF_INPUT_DREFCLK; | |
4129 | ||
4130 | dpll |= DPLL_VCO_ENABLE; | |
4131 | I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); | |
4132 | POSTING_READ(DPLL(pipe)); | |
4133 | udelay(150); | |
4134 | ||
4135 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. | |
4136 | * This is an exception to the general rule that mode_set doesn't turn | |
4137 | * things on. | |
4138 | */ | |
4139 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
4140 | intel_update_lvds(crtc, clock, adjusted_mode); | |
4141 | ||
4142 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) | |
4143 | intel_dp_set_m_n(crtc, mode, adjusted_mode); | |
4144 | ||
4145 | I915_WRITE(DPLL(pipe), dpll); | |
4146 | ||
4147 | /* Wait for the clocks to stabilize. */ | |
4148 | POSTING_READ(DPLL(pipe)); | |
4149 | udelay(150); | |
4150 | ||
4151 | if (INTEL_INFO(dev)->gen >= 4) { | |
4152 | u32 temp = 0; | |
4153 | if (is_sdvo) { | |
4154 | temp = intel_mode_get_pixel_multiplier(adjusted_mode); | |
4155 | if (temp > 1) | |
4156 | temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; | |
4157 | else | |
4158 | temp = 0; | |
4159 | } | |
4160 | I915_WRITE(DPLL_MD(pipe), temp); | |
4161 | } else { | |
4162 | /* The pixel multiplier can only be updated once the | |
4163 | * DPLL is enabled and the clocks are stable. | |
4164 | * | |
4165 | * So write it again. | |
4166 | */ | |
4167 | I915_WRITE(DPLL(pipe), dpll); | |
4168 | } | |
4169 | } | |
4170 | ||
4171 | static void i8xx_update_pll(struct drm_crtc *crtc, | |
4172 | struct drm_display_mode *adjusted_mode, | |
4173 | intel_clock_t *clock, | |
4174 | int num_connectors) | |
4175 | { | |
4176 | struct drm_device *dev = crtc->dev; | |
4177 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4178 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4179 | int pipe = intel_crtc->pipe; | |
4180 | u32 dpll; | |
4181 | ||
4182 | dpll = DPLL_VGA_MODE_DIS; | |
4183 | ||
4184 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
4185 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4186 | } else { | |
4187 | if (clock->p1 == 2) | |
4188 | dpll |= PLL_P1_DIVIDE_BY_TWO; | |
4189 | else | |
4190 | dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4191 | if (clock->p2 == 4) | |
4192 | dpll |= PLL_P2_DIVIDE_BY_4; | |
4193 | } | |
4194 | ||
4195 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) | |
4196 | /* XXX: just matching BIOS for now */ | |
4197 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ | |
4198 | dpll |= 3; | |
4199 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
4200 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) | |
4201 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
4202 | else | |
4203 | dpll |= PLL_REF_INPUT_DREFCLK; | |
4204 | ||
4205 | dpll |= DPLL_VCO_ENABLE; | |
4206 | I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); | |
4207 | POSTING_READ(DPLL(pipe)); | |
4208 | udelay(150); | |
4209 | ||
4210 | I915_WRITE(DPLL(pipe), dpll); | |
4211 | ||
4212 | /* Wait for the clocks to stabilize. */ | |
4213 | POSTING_READ(DPLL(pipe)); | |
4214 | udelay(150); | |
4215 | ||
4216 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. | |
4217 | * This is an exception to the general rule that mode_set doesn't turn | |
4218 | * things on. | |
4219 | */ | |
4220 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
4221 | intel_update_lvds(crtc, clock, adjusted_mode); | |
4222 | ||
4223 | /* The pixel multiplier can only be updated once the | |
4224 | * DPLL is enabled and the clocks are stable. | |
4225 | * | |
4226 | * So write it again. | |
4227 | */ | |
4228 | I915_WRITE(DPLL(pipe), dpll); | |
4229 | } | |
4230 | ||
f564048e EA |
4231 | static int i9xx_crtc_mode_set(struct drm_crtc *crtc, |
4232 | struct drm_display_mode *mode, | |
4233 | struct drm_display_mode *adjusted_mode, | |
4234 | int x, int y, | |
4235 | struct drm_framebuffer *old_fb) | |
79e53945 JB |
4236 | { |
4237 | struct drm_device *dev = crtc->dev; | |
4238 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4239 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4240 | int pipe = intel_crtc->pipe; | |
80824003 | 4241 | int plane = intel_crtc->plane; |
c751ce4f | 4242 | int refclk, num_connectors = 0; |
652c393a | 4243 | intel_clock_t clock, reduced_clock; |
eb1cbe48 DV |
4244 | u32 dspcntr, pipeconf, vsyncshift; |
4245 | bool ok, has_reduced_clock = false, is_sdvo = false; | |
4246 | bool is_lvds = false, is_tv = false, is_dp = false; | |
79e53945 | 4247 | struct drm_mode_config *mode_config = &dev->mode_config; |
5eddb70b | 4248 | struct intel_encoder *encoder; |
d4906093 | 4249 | const intel_limit_t *limit; |
5c3b82e2 | 4250 | int ret; |
79e53945 | 4251 | |
5eddb70b CW |
4252 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) { |
4253 | if (encoder->base.crtc != crtc) | |
79e53945 JB |
4254 | continue; |
4255 | ||
5eddb70b | 4256 | switch (encoder->type) { |
79e53945 JB |
4257 | case INTEL_OUTPUT_LVDS: |
4258 | is_lvds = true; | |
4259 | break; | |
4260 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 4261 | case INTEL_OUTPUT_HDMI: |
79e53945 | 4262 | is_sdvo = true; |
5eddb70b | 4263 | if (encoder->needs_tv_clock) |
e2f0ba97 | 4264 | is_tv = true; |
79e53945 | 4265 | break; |
79e53945 JB |
4266 | case INTEL_OUTPUT_TVOUT: |
4267 | is_tv = true; | |
4268 | break; | |
a4fc5ed6 KP |
4269 | case INTEL_OUTPUT_DISPLAYPORT: |
4270 | is_dp = true; | |
4271 | break; | |
79e53945 | 4272 | } |
43565a06 | 4273 | |
c751ce4f | 4274 | num_connectors++; |
79e53945 JB |
4275 | } |
4276 | ||
c65d77d8 | 4277 | refclk = i9xx_get_refclk(crtc, num_connectors); |
79e53945 | 4278 | |
d4906093 ML |
4279 | /* |
4280 | * Returns a set of divisors for the desired target clock with the given | |
4281 | * refclk, or FALSE. The returned values represent the clock equation: | |
4282 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
4283 | */ | |
1b894b59 | 4284 | limit = intel_limit(crtc, refclk); |
cec2f356 SP |
4285 | ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL, |
4286 | &clock); | |
79e53945 JB |
4287 | if (!ok) { |
4288 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
5c3b82e2 | 4289 | return -EINVAL; |
79e53945 JB |
4290 | } |
4291 | ||
cda4b7d3 | 4292 | /* Ensure that the cursor is valid for the new mode before changing... */ |
6b383a7f | 4293 | intel_crtc_update_cursor(crtc, true); |
cda4b7d3 | 4294 | |
ddc9003c | 4295 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
cec2f356 SP |
4296 | /* |
4297 | * Ensure we match the reduced clock's P to the target clock. | |
4298 | * If the clocks don't match, we can't switch the display clock | |
4299 | * by using the FP0/FP1. In such case we will disable the LVDS | |
4300 | * downclock feature. | |
4301 | */ | |
ddc9003c | 4302 | has_reduced_clock = limit->find_pll(limit, crtc, |
5eddb70b CW |
4303 | dev_priv->lvds_downclock, |
4304 | refclk, | |
cec2f356 | 4305 | &clock, |
5eddb70b | 4306 | &reduced_clock); |
7026d4ac ZW |
4307 | } |
4308 | ||
c65d77d8 JB |
4309 | if (is_sdvo && is_tv) |
4310 | i9xx_adjust_sdvo_tv_clock(adjusted_mode, &clock); | |
7026d4ac | 4311 | |
a7516a05 JB |
4312 | i9xx_update_pll_dividers(crtc, &clock, has_reduced_clock ? |
4313 | &reduced_clock : NULL); | |
79e53945 | 4314 | |
eb1cbe48 DV |
4315 | if (IS_GEN2(dev)) |
4316 | i8xx_update_pll(crtc, adjusted_mode, &clock, num_connectors); | |
a0c4da24 JB |
4317 | else if (IS_VALLEYVIEW(dev)) |
4318 | vlv_update_pll(crtc, mode,adjusted_mode, &clock, NULL, | |
4319 | refclk, num_connectors); | |
79e53945 | 4320 | else |
eb1cbe48 DV |
4321 | i9xx_update_pll(crtc, mode, adjusted_mode, &clock, |
4322 | has_reduced_clock ? &reduced_clock : NULL, | |
4323 | num_connectors); | |
79e53945 JB |
4324 | |
4325 | /* setup pipeconf */ | |
5eddb70b | 4326 | pipeconf = I915_READ(PIPECONF(pipe)); |
79e53945 JB |
4327 | |
4328 | /* Set up the display plane register */ | |
4329 | dspcntr = DISPPLANE_GAMMA_ENABLE; | |
4330 | ||
929c77fb EA |
4331 | if (pipe == 0) |
4332 | dspcntr &= ~DISPPLANE_SEL_PIPE_MASK; | |
4333 | else | |
4334 | dspcntr |= DISPPLANE_SEL_PIPE_B; | |
79e53945 | 4335 | |
a6c45cf0 | 4336 | if (pipe == 0 && INTEL_INFO(dev)->gen < 4) { |
79e53945 JB |
4337 | /* Enable pixel doubling when the dot clock is > 90% of the (display) |
4338 | * core speed. | |
4339 | * | |
4340 | * XXX: No double-wide on 915GM pipe B. Is that the only reason for the | |
4341 | * pipe == 0 check? | |
4342 | */ | |
e70236a8 JB |
4343 | if (mode->clock > |
4344 | dev_priv->display.get_display_clock_speed(dev) * 9 / 10) | |
5eddb70b | 4345 | pipeconf |= PIPECONF_DOUBLE_WIDE; |
79e53945 | 4346 | else |
5eddb70b | 4347 | pipeconf &= ~PIPECONF_DOUBLE_WIDE; |
79e53945 JB |
4348 | } |
4349 | ||
3b5c78a3 AJ |
4350 | /* default to 8bpc */ |
4351 | pipeconf &= ~(PIPECONF_BPP_MASK | PIPECONF_DITHER_EN); | |
4352 | if (is_dp) { | |
4353 | if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) { | |
4354 | pipeconf |= PIPECONF_BPP_6 | | |
4355 | PIPECONF_DITHER_EN | | |
4356 | PIPECONF_DITHER_TYPE_SP; | |
4357 | } | |
4358 | } | |
4359 | ||
28c97730 | 4360 | DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B'); |
79e53945 JB |
4361 | drm_mode_debug_printmodeline(mode); |
4362 | ||
a7516a05 JB |
4363 | if (HAS_PIPE_CXSR(dev)) { |
4364 | if (intel_crtc->lowfreq_avail) { | |
28c97730 | 4365 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); |
652c393a | 4366 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; |
a7516a05 | 4367 | } else { |
28c97730 | 4368 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); |
652c393a JB |
4369 | pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK; |
4370 | } | |
4371 | } | |
4372 | ||
617cf884 | 4373 | pipeconf &= ~PIPECONF_INTERLACE_MASK; |
dbb02575 DV |
4374 | if (!IS_GEN2(dev) && |
4375 | adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { | |
734b4157 KH |
4376 | pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; |
4377 | /* the chip adds 2 halflines automatically */ | |
734b4157 | 4378 | adjusted_mode->crtc_vtotal -= 1; |
734b4157 | 4379 | adjusted_mode->crtc_vblank_end -= 1; |
0529a0d9 DV |
4380 | vsyncshift = adjusted_mode->crtc_hsync_start |
4381 | - adjusted_mode->crtc_htotal/2; | |
4382 | } else { | |
617cf884 | 4383 | pipeconf |= PIPECONF_PROGRESSIVE; |
0529a0d9 DV |
4384 | vsyncshift = 0; |
4385 | } | |
4386 | ||
4387 | if (!IS_GEN3(dev)) | |
4388 | I915_WRITE(VSYNCSHIFT(pipe), vsyncshift); | |
734b4157 | 4389 | |
5eddb70b CW |
4390 | I915_WRITE(HTOTAL(pipe), |
4391 | (adjusted_mode->crtc_hdisplay - 1) | | |
79e53945 | 4392 | ((adjusted_mode->crtc_htotal - 1) << 16)); |
5eddb70b CW |
4393 | I915_WRITE(HBLANK(pipe), |
4394 | (adjusted_mode->crtc_hblank_start - 1) | | |
79e53945 | 4395 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); |
5eddb70b CW |
4396 | I915_WRITE(HSYNC(pipe), |
4397 | (adjusted_mode->crtc_hsync_start - 1) | | |
79e53945 | 4398 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); |
5eddb70b CW |
4399 | |
4400 | I915_WRITE(VTOTAL(pipe), | |
4401 | (adjusted_mode->crtc_vdisplay - 1) | | |
79e53945 | 4402 | ((adjusted_mode->crtc_vtotal - 1) << 16)); |
5eddb70b CW |
4403 | I915_WRITE(VBLANK(pipe), |
4404 | (adjusted_mode->crtc_vblank_start - 1) | | |
79e53945 | 4405 | ((adjusted_mode->crtc_vblank_end - 1) << 16)); |
5eddb70b CW |
4406 | I915_WRITE(VSYNC(pipe), |
4407 | (adjusted_mode->crtc_vsync_start - 1) | | |
79e53945 | 4408 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); |
5eddb70b CW |
4409 | |
4410 | /* pipesrc and dspsize control the size that is scaled from, | |
4411 | * which should always be the user's requested size. | |
79e53945 | 4412 | */ |
929c77fb EA |
4413 | I915_WRITE(DSPSIZE(plane), |
4414 | ((mode->vdisplay - 1) << 16) | | |
4415 | (mode->hdisplay - 1)); | |
4416 | I915_WRITE(DSPPOS(plane), 0); | |
5eddb70b CW |
4417 | I915_WRITE(PIPESRC(pipe), |
4418 | ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); | |
2c07245f | 4419 | |
f564048e EA |
4420 | I915_WRITE(PIPECONF(pipe), pipeconf); |
4421 | POSTING_READ(PIPECONF(pipe)); | |
929c77fb | 4422 | intel_enable_pipe(dev_priv, pipe, false); |
f564048e EA |
4423 | |
4424 | intel_wait_for_vblank(dev, pipe); | |
4425 | ||
f564048e EA |
4426 | I915_WRITE(DSPCNTR(plane), dspcntr); |
4427 | POSTING_READ(DSPCNTR(plane)); | |
4428 | ||
4429 | ret = intel_pipe_set_base(crtc, x, y, old_fb); | |
4430 | ||
4431 | intel_update_watermarks(dev); | |
4432 | ||
f564048e EA |
4433 | return ret; |
4434 | } | |
4435 | ||
9fb526db KP |
4436 | /* |
4437 | * Initialize reference clocks when the driver loads | |
4438 | */ | |
4439 | void ironlake_init_pch_refclk(struct drm_device *dev) | |
13d83a67 JB |
4440 | { |
4441 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4442 | struct drm_mode_config *mode_config = &dev->mode_config; | |
13d83a67 | 4443 | struct intel_encoder *encoder; |
13d83a67 JB |
4444 | u32 temp; |
4445 | bool has_lvds = false; | |
199e5d79 KP |
4446 | bool has_cpu_edp = false; |
4447 | bool has_pch_edp = false; | |
4448 | bool has_panel = false; | |
99eb6a01 KP |
4449 | bool has_ck505 = false; |
4450 | bool can_ssc = false; | |
13d83a67 JB |
4451 | |
4452 | /* We need to take the global config into account */ | |
199e5d79 KP |
4453 | list_for_each_entry(encoder, &mode_config->encoder_list, |
4454 | base.head) { | |
4455 | switch (encoder->type) { | |
4456 | case INTEL_OUTPUT_LVDS: | |
4457 | has_panel = true; | |
4458 | has_lvds = true; | |
4459 | break; | |
4460 | case INTEL_OUTPUT_EDP: | |
4461 | has_panel = true; | |
4462 | if (intel_encoder_is_pch_edp(&encoder->base)) | |
4463 | has_pch_edp = true; | |
4464 | else | |
4465 | has_cpu_edp = true; | |
4466 | break; | |
13d83a67 JB |
4467 | } |
4468 | } | |
4469 | ||
99eb6a01 KP |
4470 | if (HAS_PCH_IBX(dev)) { |
4471 | has_ck505 = dev_priv->display_clock_mode; | |
4472 | can_ssc = has_ck505; | |
4473 | } else { | |
4474 | has_ck505 = false; | |
4475 | can_ssc = true; | |
4476 | } | |
4477 | ||
4478 | DRM_DEBUG_KMS("has_panel %d has_lvds %d has_pch_edp %d has_cpu_edp %d has_ck505 %d\n", | |
4479 | has_panel, has_lvds, has_pch_edp, has_cpu_edp, | |
4480 | has_ck505); | |
13d83a67 JB |
4481 | |
4482 | /* Ironlake: try to setup display ref clock before DPLL | |
4483 | * enabling. This is only under driver's control after | |
4484 | * PCH B stepping, previous chipset stepping should be | |
4485 | * ignoring this setting. | |
4486 | */ | |
4487 | temp = I915_READ(PCH_DREF_CONTROL); | |
4488 | /* Always enable nonspread source */ | |
4489 | temp &= ~DREF_NONSPREAD_SOURCE_MASK; | |
13d83a67 | 4490 | |
99eb6a01 KP |
4491 | if (has_ck505) |
4492 | temp |= DREF_NONSPREAD_CK505_ENABLE; | |
4493 | else | |
4494 | temp |= DREF_NONSPREAD_SOURCE_ENABLE; | |
13d83a67 | 4495 | |
199e5d79 KP |
4496 | if (has_panel) { |
4497 | temp &= ~DREF_SSC_SOURCE_MASK; | |
4498 | temp |= DREF_SSC_SOURCE_ENABLE; | |
13d83a67 | 4499 | |
199e5d79 | 4500 | /* SSC must be turned on before enabling the CPU output */ |
99eb6a01 | 4501 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 4502 | DRM_DEBUG_KMS("Using SSC on panel\n"); |
13d83a67 | 4503 | temp |= DREF_SSC1_ENABLE; |
e77166b5 DV |
4504 | } else |
4505 | temp &= ~DREF_SSC1_ENABLE; | |
199e5d79 KP |
4506 | |
4507 | /* Get SSC going before enabling the outputs */ | |
4508 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
4509 | POSTING_READ(PCH_DREF_CONTROL); | |
4510 | udelay(200); | |
4511 | ||
13d83a67 JB |
4512 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
4513 | ||
4514 | /* Enable CPU source on CPU attached eDP */ | |
199e5d79 | 4515 | if (has_cpu_edp) { |
99eb6a01 | 4516 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
199e5d79 | 4517 | DRM_DEBUG_KMS("Using SSC on eDP\n"); |
13d83a67 | 4518 | temp |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; |
199e5d79 | 4519 | } |
13d83a67 JB |
4520 | else |
4521 | temp |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; | |
199e5d79 KP |
4522 | } else |
4523 | temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
4524 | ||
4525 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
4526 | POSTING_READ(PCH_DREF_CONTROL); | |
4527 | udelay(200); | |
4528 | } else { | |
4529 | DRM_DEBUG_KMS("Disabling SSC entirely\n"); | |
4530 | ||
4531 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; | |
4532 | ||
4533 | /* Turn off CPU output */ | |
4534 | temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
4535 | ||
4536 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
4537 | POSTING_READ(PCH_DREF_CONTROL); | |
4538 | udelay(200); | |
4539 | ||
4540 | /* Turn off the SSC source */ | |
4541 | temp &= ~DREF_SSC_SOURCE_MASK; | |
4542 | temp |= DREF_SSC_SOURCE_DISABLE; | |
4543 | ||
4544 | /* Turn off SSC1 */ | |
4545 | temp &= ~ DREF_SSC1_ENABLE; | |
4546 | ||
13d83a67 JB |
4547 | I915_WRITE(PCH_DREF_CONTROL, temp); |
4548 | POSTING_READ(PCH_DREF_CONTROL); | |
4549 | udelay(200); | |
4550 | } | |
4551 | } | |
4552 | ||
d9d444cb JB |
4553 | static int ironlake_get_refclk(struct drm_crtc *crtc) |
4554 | { | |
4555 | struct drm_device *dev = crtc->dev; | |
4556 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4557 | struct intel_encoder *encoder; | |
4558 | struct drm_mode_config *mode_config = &dev->mode_config; | |
4559 | struct intel_encoder *edp_encoder = NULL; | |
4560 | int num_connectors = 0; | |
4561 | bool is_lvds = false; | |
4562 | ||
4563 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) { | |
4564 | if (encoder->base.crtc != crtc) | |
4565 | continue; | |
4566 | ||
4567 | switch (encoder->type) { | |
4568 | case INTEL_OUTPUT_LVDS: | |
4569 | is_lvds = true; | |
4570 | break; | |
4571 | case INTEL_OUTPUT_EDP: | |
4572 | edp_encoder = encoder; | |
4573 | break; | |
4574 | } | |
4575 | num_connectors++; | |
4576 | } | |
4577 | ||
4578 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) { | |
4579 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", | |
4580 | dev_priv->lvds_ssc_freq); | |
4581 | return dev_priv->lvds_ssc_freq * 1000; | |
4582 | } | |
4583 | ||
4584 | return 120000; | |
4585 | } | |
4586 | ||
f564048e EA |
4587 | static int ironlake_crtc_mode_set(struct drm_crtc *crtc, |
4588 | struct drm_display_mode *mode, | |
4589 | struct drm_display_mode *adjusted_mode, | |
4590 | int x, int y, | |
4591 | struct drm_framebuffer *old_fb) | |
79e53945 JB |
4592 | { |
4593 | struct drm_device *dev = crtc->dev; | |
4594 | struct drm_i915_private *dev_priv = dev->dev_private; | |
4595 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
4596 | int pipe = intel_crtc->pipe; | |
80824003 | 4597 | int plane = intel_crtc->plane; |
c751ce4f | 4598 | int refclk, num_connectors = 0; |
652c393a | 4599 | intel_clock_t clock, reduced_clock; |
5eddb70b | 4600 | u32 dpll, fp = 0, fp2 = 0, dspcntr, pipeconf; |
a07d6787 | 4601 | bool ok, has_reduced_clock = false, is_sdvo = false; |
a4fc5ed6 | 4602 | bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false; |
79e53945 | 4603 | struct drm_mode_config *mode_config = &dev->mode_config; |
e3aef172 | 4604 | struct intel_encoder *encoder, *edp_encoder = NULL; |
d4906093 | 4605 | const intel_limit_t *limit; |
5c3b82e2 | 4606 | int ret; |
2c07245f | 4607 | struct fdi_m_n m_n = {0}; |
fae14981 | 4608 | u32 temp; |
5a354204 JB |
4609 | int target_clock, pixel_multiplier, lane, link_bw, factor; |
4610 | unsigned int pipe_bpp; | |
4611 | bool dither; | |
e3aef172 | 4612 | bool is_cpu_edp = false, is_pch_edp = false; |
79e53945 | 4613 | |
5eddb70b CW |
4614 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) { |
4615 | if (encoder->base.crtc != crtc) | |
79e53945 JB |
4616 | continue; |
4617 | ||
5eddb70b | 4618 | switch (encoder->type) { |
79e53945 JB |
4619 | case INTEL_OUTPUT_LVDS: |
4620 | is_lvds = true; | |
4621 | break; | |
4622 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 4623 | case INTEL_OUTPUT_HDMI: |
79e53945 | 4624 | is_sdvo = true; |
5eddb70b | 4625 | if (encoder->needs_tv_clock) |
e2f0ba97 | 4626 | is_tv = true; |
79e53945 | 4627 | break; |
79e53945 JB |
4628 | case INTEL_OUTPUT_TVOUT: |
4629 | is_tv = true; | |
4630 | break; | |
4631 | case INTEL_OUTPUT_ANALOG: | |
4632 | is_crt = true; | |
4633 | break; | |
a4fc5ed6 KP |
4634 | case INTEL_OUTPUT_DISPLAYPORT: |
4635 | is_dp = true; | |
4636 | break; | |
32f9d658 | 4637 | case INTEL_OUTPUT_EDP: |
e3aef172 JB |
4638 | is_dp = true; |
4639 | if (intel_encoder_is_pch_edp(&encoder->base)) | |
4640 | is_pch_edp = true; | |
4641 | else | |
4642 | is_cpu_edp = true; | |
4643 | edp_encoder = encoder; | |
32f9d658 | 4644 | break; |
79e53945 | 4645 | } |
43565a06 | 4646 | |
c751ce4f | 4647 | num_connectors++; |
79e53945 JB |
4648 | } |
4649 | ||
d9d444cb | 4650 | refclk = ironlake_get_refclk(crtc); |
79e53945 | 4651 | |
d4906093 ML |
4652 | /* |
4653 | * Returns a set of divisors for the desired target clock with the given | |
4654 | * refclk, or FALSE. The returned values represent the clock equation: | |
4655 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
4656 | */ | |
1b894b59 | 4657 | limit = intel_limit(crtc, refclk); |
cec2f356 SP |
4658 | ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL, |
4659 | &clock); | |
79e53945 JB |
4660 | if (!ok) { |
4661 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
5c3b82e2 | 4662 | return -EINVAL; |
79e53945 JB |
4663 | } |
4664 | ||
cda4b7d3 | 4665 | /* Ensure that the cursor is valid for the new mode before changing... */ |
6b383a7f | 4666 | intel_crtc_update_cursor(crtc, true); |
cda4b7d3 | 4667 | |
ddc9003c | 4668 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
cec2f356 SP |
4669 | /* |
4670 | * Ensure we match the reduced clock's P to the target clock. | |
4671 | * If the clocks don't match, we can't switch the display clock | |
4672 | * by using the FP0/FP1. In such case we will disable the LVDS | |
4673 | * downclock feature. | |
4674 | */ | |
ddc9003c | 4675 | has_reduced_clock = limit->find_pll(limit, crtc, |
5eddb70b CW |
4676 | dev_priv->lvds_downclock, |
4677 | refclk, | |
cec2f356 | 4678 | &clock, |
5eddb70b | 4679 | &reduced_clock); |
652c393a | 4680 | } |
61e9653f DV |
4681 | |
4682 | if (is_sdvo && is_tv) | |
4683 | i9xx_adjust_sdvo_tv_clock(adjusted_mode, &clock); | |
4684 | ||
7026d4ac | 4685 | |
2c07245f | 4686 | /* FDI link */ |
8febb297 EA |
4687 | pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); |
4688 | lane = 0; | |
4689 | /* CPU eDP doesn't require FDI link, so just set DP M/N | |
4690 | according to current link config */ | |
e3aef172 | 4691 | if (is_cpu_edp) { |
e3aef172 | 4692 | intel_edp_link_config(edp_encoder, &lane, &link_bw); |
8febb297 | 4693 | } else { |
8febb297 EA |
4694 | /* FDI is a binary signal running at ~2.7GHz, encoding |
4695 | * each output octet as 10 bits. The actual frequency | |
4696 | * is stored as a divider into a 100MHz clock, and the | |
4697 | * mode pixel clock is stored in units of 1KHz. | |
4698 | * Hence the bw of each lane in terms of the mode signal | |
4699 | * is: | |
4700 | */ | |
4701 | link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10; | |
4702 | } | |
58a27471 | 4703 | |
94bf2ced DV |
4704 | /* [e]DP over FDI requires target mode clock instead of link clock. */ |
4705 | if (edp_encoder) | |
4706 | target_clock = intel_edp_target_clock(edp_encoder, mode); | |
4707 | else if (is_dp) | |
4708 | target_clock = mode->clock; | |
4709 | else | |
4710 | target_clock = adjusted_mode->clock; | |
4711 | ||
8febb297 EA |
4712 | /* determine panel color depth */ |
4713 | temp = I915_READ(PIPECONF(pipe)); | |
4714 | temp &= ~PIPE_BPC_MASK; | |
3b5c78a3 | 4715 | dither = intel_choose_pipe_bpp_dither(crtc, &pipe_bpp, mode); |
5a354204 JB |
4716 | switch (pipe_bpp) { |
4717 | case 18: | |
4718 | temp |= PIPE_6BPC; | |
8febb297 | 4719 | break; |
5a354204 JB |
4720 | case 24: |
4721 | temp |= PIPE_8BPC; | |
8febb297 | 4722 | break; |
5a354204 JB |
4723 | case 30: |
4724 | temp |= PIPE_10BPC; | |
8febb297 | 4725 | break; |
5a354204 JB |
4726 | case 36: |
4727 | temp |= PIPE_12BPC; | |
8febb297 EA |
4728 | break; |
4729 | default: | |
62ac41a6 JB |
4730 | WARN(1, "intel_choose_pipe_bpp returned invalid value %d\n", |
4731 | pipe_bpp); | |
5a354204 JB |
4732 | temp |= PIPE_8BPC; |
4733 | pipe_bpp = 24; | |
4734 | break; | |
8febb297 | 4735 | } |
77ffb597 | 4736 | |
5a354204 JB |
4737 | intel_crtc->bpp = pipe_bpp; |
4738 | I915_WRITE(PIPECONF(pipe), temp); | |
4739 | ||
8febb297 EA |
4740 | if (!lane) { |
4741 | /* | |
4742 | * Account for spread spectrum to avoid | |
4743 | * oversubscribing the link. Max center spread | |
4744 | * is 2.5%; use 5% for safety's sake. | |
4745 | */ | |
5a354204 | 4746 | u32 bps = target_clock * intel_crtc->bpp * 21 / 20; |
8febb297 | 4747 | lane = bps / (link_bw * 8) + 1; |
5eb08b69 | 4748 | } |
2c07245f | 4749 | |
8febb297 EA |
4750 | intel_crtc->fdi_lanes = lane; |
4751 | ||
4752 | if (pixel_multiplier > 1) | |
4753 | link_bw *= pixel_multiplier; | |
5a354204 JB |
4754 | ironlake_compute_m_n(intel_crtc->bpp, lane, target_clock, link_bw, |
4755 | &m_n); | |
8febb297 | 4756 | |
a07d6787 EA |
4757 | fp = clock.n << 16 | clock.m1 << 8 | clock.m2; |
4758 | if (has_reduced_clock) | |
4759 | fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 | | |
4760 | reduced_clock.m2; | |
79e53945 | 4761 | |
c1858123 | 4762 | /* Enable autotuning of the PLL clock (if permissible) */ |
8febb297 EA |
4763 | factor = 21; |
4764 | if (is_lvds) { | |
4765 | if ((intel_panel_use_ssc(dev_priv) && | |
4766 | dev_priv->lvds_ssc_freq == 100) || | |
4767 | (I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP) | |
4768 | factor = 25; | |
4769 | } else if (is_sdvo && is_tv) | |
4770 | factor = 20; | |
c1858123 | 4771 | |
cb0e0931 | 4772 | if (clock.m < factor * clock.n) |
8febb297 | 4773 | fp |= FP_CB_TUNE; |
2c07245f | 4774 | |
5eddb70b | 4775 | dpll = 0; |
2c07245f | 4776 | |
a07d6787 EA |
4777 | if (is_lvds) |
4778 | dpll |= DPLLB_MODE_LVDS; | |
4779 | else | |
4780 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
4781 | if (is_sdvo) { | |
4782 | int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); | |
4783 | if (pixel_multiplier > 1) { | |
4784 | dpll |= (pixel_multiplier - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; | |
79e53945 | 4785 | } |
a07d6787 EA |
4786 | dpll |= DPLL_DVO_HIGH_SPEED; |
4787 | } | |
e3aef172 | 4788 | if (is_dp && !is_cpu_edp) |
a07d6787 | 4789 | dpll |= DPLL_DVO_HIGH_SPEED; |
79e53945 | 4790 | |
a07d6787 EA |
4791 | /* compute bitmask from p1 value */ |
4792 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
4793 | /* also FPA1 */ | |
4794 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
4795 | ||
4796 | switch (clock.p2) { | |
4797 | case 5: | |
4798 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
4799 | break; | |
4800 | case 7: | |
4801 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
4802 | break; | |
4803 | case 10: | |
4804 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
4805 | break; | |
4806 | case 14: | |
4807 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
4808 | break; | |
79e53945 JB |
4809 | } |
4810 | ||
43565a06 KH |
4811 | if (is_sdvo && is_tv) |
4812 | dpll |= PLL_REF_INPUT_TVCLKINBC; | |
4813 | else if (is_tv) | |
79e53945 | 4814 | /* XXX: just matching BIOS for now */ |
43565a06 | 4815 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ |
79e53945 | 4816 | dpll |= 3; |
a7615030 | 4817 | else if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
43565a06 | 4818 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
79e53945 JB |
4819 | else |
4820 | dpll |= PLL_REF_INPUT_DREFCLK; | |
4821 | ||
4822 | /* setup pipeconf */ | |
5eddb70b | 4823 | pipeconf = I915_READ(PIPECONF(pipe)); |
79e53945 JB |
4824 | |
4825 | /* Set up the display plane register */ | |
4826 | dspcntr = DISPPLANE_GAMMA_ENABLE; | |
4827 | ||
f7cb34d4 | 4828 | DRM_DEBUG_KMS("Mode for pipe %d:\n", pipe); |
79e53945 JB |
4829 | drm_mode_debug_printmodeline(mode); |
4830 | ||
9d82aa17 ED |
4831 | /* CPU eDP is the only output that doesn't need a PCH PLL of its own on |
4832 | * pre-Haswell/LPT generation */ | |
4833 | if (HAS_PCH_LPT(dev)) { | |
4834 | DRM_DEBUG_KMS("LPT detected: no PLL for pipe %d necessary\n", | |
4835 | pipe); | |
4836 | } else if (!is_cpu_edp) { | |
ee7b9f93 | 4837 | struct intel_pch_pll *pll; |
4b645f14 | 4838 | |
ee7b9f93 JB |
4839 | pll = intel_get_pch_pll(intel_crtc, dpll, fp); |
4840 | if (pll == NULL) { | |
4841 | DRM_DEBUG_DRIVER("failed to find PLL for pipe %d\n", | |
4842 | pipe); | |
4b645f14 JB |
4843 | return -EINVAL; |
4844 | } | |
ee7b9f93 JB |
4845 | } else |
4846 | intel_put_pch_pll(intel_crtc); | |
79e53945 JB |
4847 | |
4848 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. | |
4849 | * This is an exception to the general rule that mode_set doesn't turn | |
4850 | * things on. | |
4851 | */ | |
4852 | if (is_lvds) { | |
fae14981 | 4853 | temp = I915_READ(PCH_LVDS); |
5eddb70b | 4854 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; |
7885d205 JB |
4855 | if (HAS_PCH_CPT(dev)) { |
4856 | temp &= ~PORT_TRANS_SEL_MASK; | |
4b645f14 | 4857 | temp |= PORT_TRANS_SEL_CPT(pipe); |
7885d205 JB |
4858 | } else { |
4859 | if (pipe == 1) | |
4860 | temp |= LVDS_PIPEB_SELECT; | |
4861 | else | |
4862 | temp &= ~LVDS_PIPEB_SELECT; | |
4863 | } | |
4b645f14 | 4864 | |
a3e17eb8 | 4865 | /* set the corresponsding LVDS_BORDER bit */ |
5eddb70b | 4866 | temp |= dev_priv->lvds_border_bits; |
79e53945 JB |
4867 | /* Set the B0-B3 data pairs corresponding to whether we're going to |
4868 | * set the DPLLs for dual-channel mode or not. | |
4869 | */ | |
4870 | if (clock.p2 == 7) | |
5eddb70b | 4871 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; |
79e53945 | 4872 | else |
5eddb70b | 4873 | temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); |
79e53945 JB |
4874 | |
4875 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) | |
4876 | * appropriately here, but we need to look more thoroughly into how | |
4877 | * panels behave in the two modes. | |
4878 | */ | |
284d5df5 | 4879 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); |
aa9b500d | 4880 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) |
284d5df5 | 4881 | temp |= LVDS_HSYNC_POLARITY; |
aa9b500d | 4882 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) |
284d5df5 | 4883 | temp |= LVDS_VSYNC_POLARITY; |
fae14981 | 4884 | I915_WRITE(PCH_LVDS, temp); |
79e53945 | 4885 | } |
434ed097 | 4886 | |
8febb297 EA |
4887 | pipeconf &= ~PIPECONF_DITHER_EN; |
4888 | pipeconf &= ~PIPECONF_DITHER_TYPE_MASK; | |
5a354204 | 4889 | if ((is_lvds && dev_priv->lvds_dither) || dither) { |
8febb297 | 4890 | pipeconf |= PIPECONF_DITHER_EN; |
f74974c7 | 4891 | pipeconf |= PIPECONF_DITHER_TYPE_SP; |
434ed097 | 4892 | } |
e3aef172 | 4893 | if (is_dp && !is_cpu_edp) { |
a4fc5ed6 | 4894 | intel_dp_set_m_n(crtc, mode, adjusted_mode); |
8febb297 | 4895 | } else { |
8db9d77b | 4896 | /* For non-DP output, clear any trans DP clock recovery setting.*/ |
9db4a9c7 JB |
4897 | I915_WRITE(TRANSDATA_M1(pipe), 0); |
4898 | I915_WRITE(TRANSDATA_N1(pipe), 0); | |
4899 | I915_WRITE(TRANSDPLINK_M1(pipe), 0); | |
4900 | I915_WRITE(TRANSDPLINK_N1(pipe), 0); | |
8db9d77b | 4901 | } |
79e53945 | 4902 | |
ee7b9f93 JB |
4903 | if (intel_crtc->pch_pll) { |
4904 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); | |
5eddb70b | 4905 | |
32f9d658 | 4906 | /* Wait for the clocks to stabilize. */ |
ee7b9f93 | 4907 | POSTING_READ(intel_crtc->pch_pll->pll_reg); |
32f9d658 ZW |
4908 | udelay(150); |
4909 | ||
8febb297 EA |
4910 | /* The pixel multiplier can only be updated once the |
4911 | * DPLL is enabled and the clocks are stable. | |
4912 | * | |
4913 | * So write it again. | |
4914 | */ | |
ee7b9f93 | 4915 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); |
79e53945 | 4916 | } |
79e53945 | 4917 | |
5eddb70b | 4918 | intel_crtc->lowfreq_avail = false; |
ee7b9f93 | 4919 | if (intel_crtc->pch_pll) { |
4b645f14 | 4920 | if (is_lvds && has_reduced_clock && i915_powersave) { |
ee7b9f93 | 4921 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp2); |
4b645f14 | 4922 | intel_crtc->lowfreq_avail = true; |
4b645f14 | 4923 | } else { |
ee7b9f93 | 4924 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp); |
652c393a JB |
4925 | } |
4926 | } | |
4927 | ||
617cf884 | 4928 | pipeconf &= ~PIPECONF_INTERLACE_MASK; |
734b4157 | 4929 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { |
5def474e | 4930 | pipeconf |= PIPECONF_INTERLACED_ILK; |
734b4157 | 4931 | /* the chip adds 2 halflines automatically */ |
734b4157 | 4932 | adjusted_mode->crtc_vtotal -= 1; |
734b4157 | 4933 | adjusted_mode->crtc_vblank_end -= 1; |
0529a0d9 DV |
4934 | I915_WRITE(VSYNCSHIFT(pipe), |
4935 | adjusted_mode->crtc_hsync_start | |
4936 | - adjusted_mode->crtc_htotal/2); | |
4937 | } else { | |
617cf884 | 4938 | pipeconf |= PIPECONF_PROGRESSIVE; |
0529a0d9 DV |
4939 | I915_WRITE(VSYNCSHIFT(pipe), 0); |
4940 | } | |
734b4157 | 4941 | |
5eddb70b CW |
4942 | I915_WRITE(HTOTAL(pipe), |
4943 | (adjusted_mode->crtc_hdisplay - 1) | | |
79e53945 | 4944 | ((adjusted_mode->crtc_htotal - 1) << 16)); |
5eddb70b CW |
4945 | I915_WRITE(HBLANK(pipe), |
4946 | (adjusted_mode->crtc_hblank_start - 1) | | |
79e53945 | 4947 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); |
5eddb70b CW |
4948 | I915_WRITE(HSYNC(pipe), |
4949 | (adjusted_mode->crtc_hsync_start - 1) | | |
79e53945 | 4950 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); |
5eddb70b CW |
4951 | |
4952 | I915_WRITE(VTOTAL(pipe), | |
4953 | (adjusted_mode->crtc_vdisplay - 1) | | |
79e53945 | 4954 | ((adjusted_mode->crtc_vtotal - 1) << 16)); |
5eddb70b CW |
4955 | I915_WRITE(VBLANK(pipe), |
4956 | (adjusted_mode->crtc_vblank_start - 1) | | |
79e53945 | 4957 | ((adjusted_mode->crtc_vblank_end - 1) << 16)); |
5eddb70b CW |
4958 | I915_WRITE(VSYNC(pipe), |
4959 | (adjusted_mode->crtc_vsync_start - 1) | | |
79e53945 | 4960 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); |
5eddb70b | 4961 | |
8febb297 EA |
4962 | /* pipesrc controls the size that is scaled from, which should |
4963 | * always be the user's requested size. | |
79e53945 | 4964 | */ |
5eddb70b CW |
4965 | I915_WRITE(PIPESRC(pipe), |
4966 | ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); | |
2c07245f | 4967 | |
8febb297 EA |
4968 | I915_WRITE(PIPE_DATA_M1(pipe), TU_SIZE(m_n.tu) | m_n.gmch_m); |
4969 | I915_WRITE(PIPE_DATA_N1(pipe), m_n.gmch_n); | |
4970 | I915_WRITE(PIPE_LINK_M1(pipe), m_n.link_m); | |
4971 | I915_WRITE(PIPE_LINK_N1(pipe), m_n.link_n); | |
2c07245f | 4972 | |
e3aef172 | 4973 | if (is_cpu_edp) |
8febb297 | 4974 | ironlake_set_pll_edp(crtc, adjusted_mode->clock); |
2c07245f | 4975 | |
5eddb70b CW |
4976 | I915_WRITE(PIPECONF(pipe), pipeconf); |
4977 | POSTING_READ(PIPECONF(pipe)); | |
79e53945 | 4978 | |
9d0498a2 | 4979 | intel_wait_for_vblank(dev, pipe); |
79e53945 | 4980 | |
5eddb70b | 4981 | I915_WRITE(DSPCNTR(plane), dspcntr); |
b24e7179 | 4982 | POSTING_READ(DSPCNTR(plane)); |
79e53945 | 4983 | |
5c3b82e2 | 4984 | ret = intel_pipe_set_base(crtc, x, y, old_fb); |
7662c8bd SL |
4985 | |
4986 | intel_update_watermarks(dev); | |
4987 | ||
1f8eeabf ED |
4988 | intel_update_linetime_watermarks(dev, pipe, adjusted_mode); |
4989 | ||
1f803ee5 | 4990 | return ret; |
79e53945 JB |
4991 | } |
4992 | ||
f564048e EA |
4993 | static int intel_crtc_mode_set(struct drm_crtc *crtc, |
4994 | struct drm_display_mode *mode, | |
4995 | struct drm_display_mode *adjusted_mode, | |
4996 | int x, int y, | |
4997 | struct drm_framebuffer *old_fb) | |
4998 | { | |
4999 | struct drm_device *dev = crtc->dev; | |
5000 | struct drm_i915_private *dev_priv = dev->dev_private; | |
0b701d27 EA |
5001 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5002 | int pipe = intel_crtc->pipe; | |
f564048e EA |
5003 | int ret; |
5004 | ||
0b701d27 | 5005 | drm_vblank_pre_modeset(dev, pipe); |
7662c8bd | 5006 | |
f564048e EA |
5007 | ret = dev_priv->display.crtc_mode_set(crtc, mode, adjusted_mode, |
5008 | x, y, old_fb); | |
79e53945 | 5009 | drm_vblank_post_modeset(dev, pipe); |
5c3b82e2 | 5010 | |
d8e70a25 JB |
5011 | if (ret) |
5012 | intel_crtc->dpms_mode = DRM_MODE_DPMS_OFF; | |
5013 | else | |
5014 | intel_crtc->dpms_mode = DRM_MODE_DPMS_ON; | |
120eced9 | 5015 | |
1f803ee5 | 5016 | return ret; |
79e53945 JB |
5017 | } |
5018 | ||
3a9627f4 WF |
5019 | static bool intel_eld_uptodate(struct drm_connector *connector, |
5020 | int reg_eldv, uint32_t bits_eldv, | |
5021 | int reg_elda, uint32_t bits_elda, | |
5022 | int reg_edid) | |
5023 | { | |
5024 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
5025 | uint8_t *eld = connector->eld; | |
5026 | uint32_t i; | |
5027 | ||
5028 | i = I915_READ(reg_eldv); | |
5029 | i &= bits_eldv; | |
5030 | ||
5031 | if (!eld[0]) | |
5032 | return !i; | |
5033 | ||
5034 | if (!i) | |
5035 | return false; | |
5036 | ||
5037 | i = I915_READ(reg_elda); | |
5038 | i &= ~bits_elda; | |
5039 | I915_WRITE(reg_elda, i); | |
5040 | ||
5041 | for (i = 0; i < eld[2]; i++) | |
5042 | if (I915_READ(reg_edid) != *((uint32_t *)eld + i)) | |
5043 | return false; | |
5044 | ||
5045 | return true; | |
5046 | } | |
5047 | ||
e0dac65e WF |
5048 | static void g4x_write_eld(struct drm_connector *connector, |
5049 | struct drm_crtc *crtc) | |
5050 | { | |
5051 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
5052 | uint8_t *eld = connector->eld; | |
5053 | uint32_t eldv; | |
5054 | uint32_t len; | |
5055 | uint32_t i; | |
5056 | ||
5057 | i = I915_READ(G4X_AUD_VID_DID); | |
5058 | ||
5059 | if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL) | |
5060 | eldv = G4X_ELDV_DEVCL_DEVBLC; | |
5061 | else | |
5062 | eldv = G4X_ELDV_DEVCTG; | |
5063 | ||
3a9627f4 WF |
5064 | if (intel_eld_uptodate(connector, |
5065 | G4X_AUD_CNTL_ST, eldv, | |
5066 | G4X_AUD_CNTL_ST, G4X_ELD_ADDR, | |
5067 | G4X_HDMIW_HDMIEDID)) | |
5068 | return; | |
5069 | ||
e0dac65e WF |
5070 | i = I915_READ(G4X_AUD_CNTL_ST); |
5071 | i &= ~(eldv | G4X_ELD_ADDR); | |
5072 | len = (i >> 9) & 0x1f; /* ELD buffer size */ | |
5073 | I915_WRITE(G4X_AUD_CNTL_ST, i); | |
5074 | ||
5075 | if (!eld[0]) | |
5076 | return; | |
5077 | ||
5078 | len = min_t(uint8_t, eld[2], len); | |
5079 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
5080 | for (i = 0; i < len; i++) | |
5081 | I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i)); | |
5082 | ||
5083 | i = I915_READ(G4X_AUD_CNTL_ST); | |
5084 | i |= eldv; | |
5085 | I915_WRITE(G4X_AUD_CNTL_ST, i); | |
5086 | } | |
5087 | ||
5088 | static void ironlake_write_eld(struct drm_connector *connector, | |
5089 | struct drm_crtc *crtc) | |
5090 | { | |
5091 | struct drm_i915_private *dev_priv = connector->dev->dev_private; | |
5092 | uint8_t *eld = connector->eld; | |
5093 | uint32_t eldv; | |
5094 | uint32_t i; | |
5095 | int len; | |
5096 | int hdmiw_hdmiedid; | |
b6daa025 | 5097 | int aud_config; |
e0dac65e WF |
5098 | int aud_cntl_st; |
5099 | int aud_cntrl_st2; | |
5100 | ||
b3f33cbf | 5101 | if (HAS_PCH_IBX(connector->dev)) { |
1202b4c6 | 5102 | hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID_A; |
b6daa025 | 5103 | aud_config = IBX_AUD_CONFIG_A; |
1202b4c6 WF |
5104 | aud_cntl_st = IBX_AUD_CNTL_ST_A; |
5105 | aud_cntrl_st2 = IBX_AUD_CNTL_ST2; | |
e0dac65e | 5106 | } else { |
1202b4c6 | 5107 | hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID_A; |
b6daa025 | 5108 | aud_config = CPT_AUD_CONFIG_A; |
1202b4c6 WF |
5109 | aud_cntl_st = CPT_AUD_CNTL_ST_A; |
5110 | aud_cntrl_st2 = CPT_AUD_CNTRL_ST2; | |
e0dac65e WF |
5111 | } |
5112 | ||
5113 | i = to_intel_crtc(crtc)->pipe; | |
5114 | hdmiw_hdmiedid += i * 0x100; | |
5115 | aud_cntl_st += i * 0x100; | |
b6daa025 | 5116 | aud_config += i * 0x100; |
e0dac65e WF |
5117 | |
5118 | DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(i)); | |
5119 | ||
5120 | i = I915_READ(aud_cntl_st); | |
5121 | i = (i >> 29) & 0x3; /* DIP_Port_Select, 0x1 = PortB */ | |
5122 | if (!i) { | |
5123 | DRM_DEBUG_DRIVER("Audio directed to unknown port\n"); | |
5124 | /* operate blindly on all ports */ | |
1202b4c6 WF |
5125 | eldv = IBX_ELD_VALIDB; |
5126 | eldv |= IBX_ELD_VALIDB << 4; | |
5127 | eldv |= IBX_ELD_VALIDB << 8; | |
e0dac65e WF |
5128 | } else { |
5129 | DRM_DEBUG_DRIVER("ELD on port %c\n", 'A' + i); | |
1202b4c6 | 5130 | eldv = IBX_ELD_VALIDB << ((i - 1) * 4); |
e0dac65e WF |
5131 | } |
5132 | ||
3a9627f4 WF |
5133 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
5134 | DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n"); | |
5135 | eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */ | |
b6daa025 WF |
5136 | I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */ |
5137 | } else | |
5138 | I915_WRITE(aud_config, 0); | |
e0dac65e | 5139 | |
3a9627f4 WF |
5140 | if (intel_eld_uptodate(connector, |
5141 | aud_cntrl_st2, eldv, | |
5142 | aud_cntl_st, IBX_ELD_ADDRESS, | |
5143 | hdmiw_hdmiedid)) | |
5144 | return; | |
5145 | ||
e0dac65e WF |
5146 | i = I915_READ(aud_cntrl_st2); |
5147 | i &= ~eldv; | |
5148 | I915_WRITE(aud_cntrl_st2, i); | |
5149 | ||
5150 | if (!eld[0]) | |
5151 | return; | |
5152 | ||
e0dac65e | 5153 | i = I915_READ(aud_cntl_st); |
1202b4c6 | 5154 | i &= ~IBX_ELD_ADDRESS; |
e0dac65e WF |
5155 | I915_WRITE(aud_cntl_st, i); |
5156 | ||
5157 | len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */ | |
5158 | DRM_DEBUG_DRIVER("ELD size %d\n", len); | |
5159 | for (i = 0; i < len; i++) | |
5160 | I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i)); | |
5161 | ||
5162 | i = I915_READ(aud_cntrl_st2); | |
5163 | i |= eldv; | |
5164 | I915_WRITE(aud_cntrl_st2, i); | |
5165 | } | |
5166 | ||
5167 | void intel_write_eld(struct drm_encoder *encoder, | |
5168 | struct drm_display_mode *mode) | |
5169 | { | |
5170 | struct drm_crtc *crtc = encoder->crtc; | |
5171 | struct drm_connector *connector; | |
5172 | struct drm_device *dev = encoder->dev; | |
5173 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5174 | ||
5175 | connector = drm_select_eld(encoder, mode); | |
5176 | if (!connector) | |
5177 | return; | |
5178 | ||
5179 | DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", | |
5180 | connector->base.id, | |
5181 | drm_get_connector_name(connector), | |
5182 | connector->encoder->base.id, | |
5183 | drm_get_encoder_name(connector->encoder)); | |
5184 | ||
5185 | connector->eld[6] = drm_av_sync_delay(connector, mode) / 2; | |
5186 | ||
5187 | if (dev_priv->display.write_eld) | |
5188 | dev_priv->display.write_eld(connector, crtc); | |
5189 | } | |
5190 | ||
79e53945 JB |
5191 | /** Loads the palette/gamma unit for the CRTC with the prepared values */ |
5192 | void intel_crtc_load_lut(struct drm_crtc *crtc) | |
5193 | { | |
5194 | struct drm_device *dev = crtc->dev; | |
5195 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5196 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
9db4a9c7 | 5197 | int palreg = PALETTE(intel_crtc->pipe); |
79e53945 JB |
5198 | int i; |
5199 | ||
5200 | /* The clocks have to be on to load the palette. */ | |
aed3f09d | 5201 | if (!crtc->enabled || !intel_crtc->active) |
79e53945 JB |
5202 | return; |
5203 | ||
f2b115e6 | 5204 | /* use legacy palette for Ironlake */ |
bad720ff | 5205 | if (HAS_PCH_SPLIT(dev)) |
9db4a9c7 | 5206 | palreg = LGC_PALETTE(intel_crtc->pipe); |
2c07245f | 5207 | |
79e53945 JB |
5208 | for (i = 0; i < 256; i++) { |
5209 | I915_WRITE(palreg + 4 * i, | |
5210 | (intel_crtc->lut_r[i] << 16) | | |
5211 | (intel_crtc->lut_g[i] << 8) | | |
5212 | intel_crtc->lut_b[i]); | |
5213 | } | |
5214 | } | |
5215 | ||
560b85bb CW |
5216 | static void i845_update_cursor(struct drm_crtc *crtc, u32 base) |
5217 | { | |
5218 | struct drm_device *dev = crtc->dev; | |
5219 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5220 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5221 | bool visible = base != 0; | |
5222 | u32 cntl; | |
5223 | ||
5224 | if (intel_crtc->cursor_visible == visible) | |
5225 | return; | |
5226 | ||
9db4a9c7 | 5227 | cntl = I915_READ(_CURACNTR); |
560b85bb CW |
5228 | if (visible) { |
5229 | /* On these chipsets we can only modify the base whilst | |
5230 | * the cursor is disabled. | |
5231 | */ | |
9db4a9c7 | 5232 | I915_WRITE(_CURABASE, base); |
560b85bb CW |
5233 | |
5234 | cntl &= ~(CURSOR_FORMAT_MASK); | |
5235 | /* XXX width must be 64, stride 256 => 0x00 << 28 */ | |
5236 | cntl |= CURSOR_ENABLE | | |
5237 | CURSOR_GAMMA_ENABLE | | |
5238 | CURSOR_FORMAT_ARGB; | |
5239 | } else | |
5240 | cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE); | |
9db4a9c7 | 5241 | I915_WRITE(_CURACNTR, cntl); |
560b85bb CW |
5242 | |
5243 | intel_crtc->cursor_visible = visible; | |
5244 | } | |
5245 | ||
5246 | static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base) | |
5247 | { | |
5248 | struct drm_device *dev = crtc->dev; | |
5249 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5250 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5251 | int pipe = intel_crtc->pipe; | |
5252 | bool visible = base != 0; | |
5253 | ||
5254 | if (intel_crtc->cursor_visible != visible) { | |
548f245b | 5255 | uint32_t cntl = I915_READ(CURCNTR(pipe)); |
560b85bb CW |
5256 | if (base) { |
5257 | cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT); | |
5258 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; | |
5259 | cntl |= pipe << 28; /* Connect to correct pipe */ | |
5260 | } else { | |
5261 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); | |
5262 | cntl |= CURSOR_MODE_DISABLE; | |
5263 | } | |
9db4a9c7 | 5264 | I915_WRITE(CURCNTR(pipe), cntl); |
560b85bb CW |
5265 | |
5266 | intel_crtc->cursor_visible = visible; | |
5267 | } | |
5268 | /* and commit changes on next vblank */ | |
9db4a9c7 | 5269 | I915_WRITE(CURBASE(pipe), base); |
560b85bb CW |
5270 | } |
5271 | ||
65a21cd6 JB |
5272 | static void ivb_update_cursor(struct drm_crtc *crtc, u32 base) |
5273 | { | |
5274 | struct drm_device *dev = crtc->dev; | |
5275 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5276 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5277 | int pipe = intel_crtc->pipe; | |
5278 | bool visible = base != 0; | |
5279 | ||
5280 | if (intel_crtc->cursor_visible != visible) { | |
5281 | uint32_t cntl = I915_READ(CURCNTR_IVB(pipe)); | |
5282 | if (base) { | |
5283 | cntl &= ~CURSOR_MODE; | |
5284 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; | |
5285 | } else { | |
5286 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); | |
5287 | cntl |= CURSOR_MODE_DISABLE; | |
5288 | } | |
5289 | I915_WRITE(CURCNTR_IVB(pipe), cntl); | |
5290 | ||
5291 | intel_crtc->cursor_visible = visible; | |
5292 | } | |
5293 | /* and commit changes on next vblank */ | |
5294 | I915_WRITE(CURBASE_IVB(pipe), base); | |
5295 | } | |
5296 | ||
cda4b7d3 | 5297 | /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */ |
6b383a7f CW |
5298 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, |
5299 | bool on) | |
cda4b7d3 CW |
5300 | { |
5301 | struct drm_device *dev = crtc->dev; | |
5302 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5303 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5304 | int pipe = intel_crtc->pipe; | |
5305 | int x = intel_crtc->cursor_x; | |
5306 | int y = intel_crtc->cursor_y; | |
560b85bb | 5307 | u32 base, pos; |
cda4b7d3 CW |
5308 | bool visible; |
5309 | ||
5310 | pos = 0; | |
5311 | ||
6b383a7f | 5312 | if (on && crtc->enabled && crtc->fb) { |
cda4b7d3 CW |
5313 | base = intel_crtc->cursor_addr; |
5314 | if (x > (int) crtc->fb->width) | |
5315 | base = 0; | |
5316 | ||
5317 | if (y > (int) crtc->fb->height) | |
5318 | base = 0; | |
5319 | } else | |
5320 | base = 0; | |
5321 | ||
5322 | if (x < 0) { | |
5323 | if (x + intel_crtc->cursor_width < 0) | |
5324 | base = 0; | |
5325 | ||
5326 | pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT; | |
5327 | x = -x; | |
5328 | } | |
5329 | pos |= x << CURSOR_X_SHIFT; | |
5330 | ||
5331 | if (y < 0) { | |
5332 | if (y + intel_crtc->cursor_height < 0) | |
5333 | base = 0; | |
5334 | ||
5335 | pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT; | |
5336 | y = -y; | |
5337 | } | |
5338 | pos |= y << CURSOR_Y_SHIFT; | |
5339 | ||
5340 | visible = base != 0; | |
560b85bb | 5341 | if (!visible && !intel_crtc->cursor_visible) |
cda4b7d3 CW |
5342 | return; |
5343 | ||
0cd83aa9 | 5344 | if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) { |
65a21cd6 JB |
5345 | I915_WRITE(CURPOS_IVB(pipe), pos); |
5346 | ivb_update_cursor(crtc, base); | |
5347 | } else { | |
5348 | I915_WRITE(CURPOS(pipe), pos); | |
5349 | if (IS_845G(dev) || IS_I865G(dev)) | |
5350 | i845_update_cursor(crtc, base); | |
5351 | else | |
5352 | i9xx_update_cursor(crtc, base); | |
5353 | } | |
cda4b7d3 CW |
5354 | } |
5355 | ||
79e53945 | 5356 | static int intel_crtc_cursor_set(struct drm_crtc *crtc, |
05394f39 | 5357 | struct drm_file *file, |
79e53945 JB |
5358 | uint32_t handle, |
5359 | uint32_t width, uint32_t height) | |
5360 | { | |
5361 | struct drm_device *dev = crtc->dev; | |
5362 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5363 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
05394f39 | 5364 | struct drm_i915_gem_object *obj; |
cda4b7d3 | 5365 | uint32_t addr; |
3f8bc370 | 5366 | int ret; |
79e53945 | 5367 | |
28c97730 | 5368 | DRM_DEBUG_KMS("\n"); |
79e53945 JB |
5369 | |
5370 | /* if we want to turn off the cursor ignore width and height */ | |
5371 | if (!handle) { | |
28c97730 | 5372 | DRM_DEBUG_KMS("cursor off\n"); |
3f8bc370 | 5373 | addr = 0; |
05394f39 | 5374 | obj = NULL; |
5004417d | 5375 | mutex_lock(&dev->struct_mutex); |
3f8bc370 | 5376 | goto finish; |
79e53945 JB |
5377 | } |
5378 | ||
5379 | /* Currently we only support 64x64 cursors */ | |
5380 | if (width != 64 || height != 64) { | |
5381 | DRM_ERROR("we currently only support 64x64 cursors\n"); | |
5382 | return -EINVAL; | |
5383 | } | |
5384 | ||
05394f39 | 5385 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle)); |
c8725226 | 5386 | if (&obj->base == NULL) |
79e53945 JB |
5387 | return -ENOENT; |
5388 | ||
05394f39 | 5389 | if (obj->base.size < width * height * 4) { |
79e53945 | 5390 | DRM_ERROR("buffer is to small\n"); |
34b8686e DA |
5391 | ret = -ENOMEM; |
5392 | goto fail; | |
79e53945 JB |
5393 | } |
5394 | ||
71acb5eb | 5395 | /* we only need to pin inside GTT if cursor is non-phy */ |
7f9872e0 | 5396 | mutex_lock(&dev->struct_mutex); |
b295d1b6 | 5397 | if (!dev_priv->info->cursor_needs_physical) { |
d9e86c0e CW |
5398 | if (obj->tiling_mode) { |
5399 | DRM_ERROR("cursor cannot be tiled\n"); | |
5400 | ret = -EINVAL; | |
5401 | goto fail_locked; | |
5402 | } | |
5403 | ||
2da3b9b9 | 5404 | ret = i915_gem_object_pin_to_display_plane(obj, 0, NULL); |
e7b526bb CW |
5405 | if (ret) { |
5406 | DRM_ERROR("failed to move cursor bo into the GTT\n"); | |
2da3b9b9 | 5407 | goto fail_locked; |
e7b526bb CW |
5408 | } |
5409 | ||
d9e86c0e CW |
5410 | ret = i915_gem_object_put_fence(obj); |
5411 | if (ret) { | |
2da3b9b9 | 5412 | DRM_ERROR("failed to release fence for cursor"); |
d9e86c0e CW |
5413 | goto fail_unpin; |
5414 | } | |
5415 | ||
05394f39 | 5416 | addr = obj->gtt_offset; |
71acb5eb | 5417 | } else { |
6eeefaf3 | 5418 | int align = IS_I830(dev) ? 16 * 1024 : 256; |
05394f39 | 5419 | ret = i915_gem_attach_phys_object(dev, obj, |
6eeefaf3 CW |
5420 | (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1, |
5421 | align); | |
71acb5eb DA |
5422 | if (ret) { |
5423 | DRM_ERROR("failed to attach phys object\n"); | |
7f9872e0 | 5424 | goto fail_locked; |
71acb5eb | 5425 | } |
05394f39 | 5426 | addr = obj->phys_obj->handle->busaddr; |
3f8bc370 KH |
5427 | } |
5428 | ||
a6c45cf0 | 5429 | if (IS_GEN2(dev)) |
14b60391 JB |
5430 | I915_WRITE(CURSIZE, (height << 12) | width); |
5431 | ||
3f8bc370 | 5432 | finish: |
3f8bc370 | 5433 | if (intel_crtc->cursor_bo) { |
b295d1b6 | 5434 | if (dev_priv->info->cursor_needs_physical) { |
05394f39 | 5435 | if (intel_crtc->cursor_bo != obj) |
71acb5eb DA |
5436 | i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo); |
5437 | } else | |
5438 | i915_gem_object_unpin(intel_crtc->cursor_bo); | |
05394f39 | 5439 | drm_gem_object_unreference(&intel_crtc->cursor_bo->base); |
3f8bc370 | 5440 | } |
80824003 | 5441 | |
7f9872e0 | 5442 | mutex_unlock(&dev->struct_mutex); |
3f8bc370 KH |
5443 | |
5444 | intel_crtc->cursor_addr = addr; | |
05394f39 | 5445 | intel_crtc->cursor_bo = obj; |
cda4b7d3 CW |
5446 | intel_crtc->cursor_width = width; |
5447 | intel_crtc->cursor_height = height; | |
5448 | ||
6b383a7f | 5449 | intel_crtc_update_cursor(crtc, true); |
3f8bc370 | 5450 | |
79e53945 | 5451 | return 0; |
e7b526bb | 5452 | fail_unpin: |
05394f39 | 5453 | i915_gem_object_unpin(obj); |
7f9872e0 | 5454 | fail_locked: |
34b8686e | 5455 | mutex_unlock(&dev->struct_mutex); |
bc9025bd | 5456 | fail: |
05394f39 | 5457 | drm_gem_object_unreference_unlocked(&obj->base); |
34b8686e | 5458 | return ret; |
79e53945 JB |
5459 | } |
5460 | ||
5461 | static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) | |
5462 | { | |
79e53945 | 5463 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 5464 | |
cda4b7d3 CW |
5465 | intel_crtc->cursor_x = x; |
5466 | intel_crtc->cursor_y = y; | |
652c393a | 5467 | |
6b383a7f | 5468 | intel_crtc_update_cursor(crtc, true); |
79e53945 JB |
5469 | |
5470 | return 0; | |
5471 | } | |
5472 | ||
5473 | /** Sets the color ramps on behalf of RandR */ | |
5474 | void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, | |
5475 | u16 blue, int regno) | |
5476 | { | |
5477 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5478 | ||
5479 | intel_crtc->lut_r[regno] = red >> 8; | |
5480 | intel_crtc->lut_g[regno] = green >> 8; | |
5481 | intel_crtc->lut_b[regno] = blue >> 8; | |
5482 | } | |
5483 | ||
b8c00ac5 DA |
5484 | void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, |
5485 | u16 *blue, int regno) | |
5486 | { | |
5487 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5488 | ||
5489 | *red = intel_crtc->lut_r[regno] << 8; | |
5490 | *green = intel_crtc->lut_g[regno] << 8; | |
5491 | *blue = intel_crtc->lut_b[regno] << 8; | |
5492 | } | |
5493 | ||
79e53945 | 5494 | static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, |
7203425a | 5495 | u16 *blue, uint32_t start, uint32_t size) |
79e53945 | 5496 | { |
7203425a | 5497 | int end = (start + size > 256) ? 256 : start + size, i; |
79e53945 | 5498 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
79e53945 | 5499 | |
7203425a | 5500 | for (i = start; i < end; i++) { |
79e53945 JB |
5501 | intel_crtc->lut_r[i] = red[i] >> 8; |
5502 | intel_crtc->lut_g[i] = green[i] >> 8; | |
5503 | intel_crtc->lut_b[i] = blue[i] >> 8; | |
5504 | } | |
5505 | ||
5506 | intel_crtc_load_lut(crtc); | |
5507 | } | |
5508 | ||
5509 | /** | |
5510 | * Get a pipe with a simple mode set on it for doing load-based monitor | |
5511 | * detection. | |
5512 | * | |
5513 | * It will be up to the load-detect code to adjust the pipe as appropriate for | |
c751ce4f | 5514 | * its requirements. The pipe will be connected to no other encoders. |
79e53945 | 5515 | * |
c751ce4f | 5516 | * Currently this code will only succeed if there is a pipe with no encoders |
79e53945 JB |
5517 | * configured for it. In the future, it could choose to temporarily disable |
5518 | * some outputs to free up a pipe for its use. | |
5519 | * | |
5520 | * \return crtc, or NULL if no pipes are available. | |
5521 | */ | |
5522 | ||
5523 | /* VESA 640x480x72Hz mode to set on the pipe */ | |
5524 | static struct drm_display_mode load_detect_mode = { | |
5525 | DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, | |
5526 | 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), | |
5527 | }; | |
5528 | ||
d2dff872 CW |
5529 | static struct drm_framebuffer * |
5530 | intel_framebuffer_create(struct drm_device *dev, | |
308e5bcb | 5531 | struct drm_mode_fb_cmd2 *mode_cmd, |
d2dff872 CW |
5532 | struct drm_i915_gem_object *obj) |
5533 | { | |
5534 | struct intel_framebuffer *intel_fb; | |
5535 | int ret; | |
5536 | ||
5537 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); | |
5538 | if (!intel_fb) { | |
5539 | drm_gem_object_unreference_unlocked(&obj->base); | |
5540 | return ERR_PTR(-ENOMEM); | |
5541 | } | |
5542 | ||
5543 | ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj); | |
5544 | if (ret) { | |
5545 | drm_gem_object_unreference_unlocked(&obj->base); | |
5546 | kfree(intel_fb); | |
5547 | return ERR_PTR(ret); | |
5548 | } | |
5549 | ||
5550 | return &intel_fb->base; | |
5551 | } | |
5552 | ||
5553 | static u32 | |
5554 | intel_framebuffer_pitch_for_width(int width, int bpp) | |
5555 | { | |
5556 | u32 pitch = DIV_ROUND_UP(width * bpp, 8); | |
5557 | return ALIGN(pitch, 64); | |
5558 | } | |
5559 | ||
5560 | static u32 | |
5561 | intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp) | |
5562 | { | |
5563 | u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp); | |
5564 | return ALIGN(pitch * mode->vdisplay, PAGE_SIZE); | |
5565 | } | |
5566 | ||
5567 | static struct drm_framebuffer * | |
5568 | intel_framebuffer_create_for_mode(struct drm_device *dev, | |
5569 | struct drm_display_mode *mode, | |
5570 | int depth, int bpp) | |
5571 | { | |
5572 | struct drm_i915_gem_object *obj; | |
308e5bcb | 5573 | struct drm_mode_fb_cmd2 mode_cmd; |
d2dff872 CW |
5574 | |
5575 | obj = i915_gem_alloc_object(dev, | |
5576 | intel_framebuffer_size_for_mode(mode, bpp)); | |
5577 | if (obj == NULL) | |
5578 | return ERR_PTR(-ENOMEM); | |
5579 | ||
5580 | mode_cmd.width = mode->hdisplay; | |
5581 | mode_cmd.height = mode->vdisplay; | |
308e5bcb JB |
5582 | mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width, |
5583 | bpp); | |
5ca0c34a | 5584 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); |
d2dff872 CW |
5585 | |
5586 | return intel_framebuffer_create(dev, &mode_cmd, obj); | |
5587 | } | |
5588 | ||
5589 | static struct drm_framebuffer * | |
5590 | mode_fits_in_fbdev(struct drm_device *dev, | |
5591 | struct drm_display_mode *mode) | |
5592 | { | |
5593 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5594 | struct drm_i915_gem_object *obj; | |
5595 | struct drm_framebuffer *fb; | |
5596 | ||
5597 | if (dev_priv->fbdev == NULL) | |
5598 | return NULL; | |
5599 | ||
5600 | obj = dev_priv->fbdev->ifb.obj; | |
5601 | if (obj == NULL) | |
5602 | return NULL; | |
5603 | ||
5604 | fb = &dev_priv->fbdev->ifb.base; | |
01f2c773 VS |
5605 | if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay, |
5606 | fb->bits_per_pixel)) | |
d2dff872 CW |
5607 | return NULL; |
5608 | ||
01f2c773 | 5609 | if (obj->base.size < mode->vdisplay * fb->pitches[0]) |
d2dff872 CW |
5610 | return NULL; |
5611 | ||
5612 | return fb; | |
5613 | } | |
5614 | ||
7173188d CW |
5615 | bool intel_get_load_detect_pipe(struct intel_encoder *intel_encoder, |
5616 | struct drm_connector *connector, | |
5617 | struct drm_display_mode *mode, | |
8261b191 | 5618 | struct intel_load_detect_pipe *old) |
79e53945 JB |
5619 | { |
5620 | struct intel_crtc *intel_crtc; | |
5621 | struct drm_crtc *possible_crtc; | |
4ef69c7a | 5622 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 JB |
5623 | struct drm_crtc *crtc = NULL; |
5624 | struct drm_device *dev = encoder->dev; | |
d2dff872 | 5625 | struct drm_framebuffer *old_fb; |
79e53945 JB |
5626 | int i = -1; |
5627 | ||
d2dff872 CW |
5628 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
5629 | connector->base.id, drm_get_connector_name(connector), | |
5630 | encoder->base.id, drm_get_encoder_name(encoder)); | |
5631 | ||
79e53945 JB |
5632 | /* |
5633 | * Algorithm gets a little messy: | |
7a5e4805 | 5634 | * |
79e53945 JB |
5635 | * - if the connector already has an assigned crtc, use it (but make |
5636 | * sure it's on first) | |
7a5e4805 | 5637 | * |
79e53945 JB |
5638 | * - try to find the first unused crtc that can drive this connector, |
5639 | * and use that if we find one | |
79e53945 JB |
5640 | */ |
5641 | ||
5642 | /* See if we already have a CRTC for this connector */ | |
5643 | if (encoder->crtc) { | |
5644 | crtc = encoder->crtc; | |
8261b191 | 5645 | |
79e53945 | 5646 | intel_crtc = to_intel_crtc(crtc); |
8261b191 CW |
5647 | old->dpms_mode = intel_crtc->dpms_mode; |
5648 | old->load_detect_temp = false; | |
5649 | ||
5650 | /* Make sure the crtc and connector are running */ | |
79e53945 | 5651 | if (intel_crtc->dpms_mode != DRM_MODE_DPMS_ON) { |
6492711d CW |
5652 | struct drm_encoder_helper_funcs *encoder_funcs; |
5653 | struct drm_crtc_helper_funcs *crtc_funcs; | |
5654 | ||
79e53945 JB |
5655 | crtc_funcs = crtc->helper_private; |
5656 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); | |
6492711d CW |
5657 | |
5658 | encoder_funcs = encoder->helper_private; | |
79e53945 JB |
5659 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); |
5660 | } | |
8261b191 | 5661 | |
7173188d | 5662 | return true; |
79e53945 JB |
5663 | } |
5664 | ||
5665 | /* Find an unused one (if possible) */ | |
5666 | list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) { | |
5667 | i++; | |
5668 | if (!(encoder->possible_crtcs & (1 << i))) | |
5669 | continue; | |
5670 | if (!possible_crtc->enabled) { | |
5671 | crtc = possible_crtc; | |
5672 | break; | |
5673 | } | |
79e53945 JB |
5674 | } |
5675 | ||
5676 | /* | |
5677 | * If we didn't find an unused CRTC, don't use any. | |
5678 | */ | |
5679 | if (!crtc) { | |
7173188d CW |
5680 | DRM_DEBUG_KMS("no pipe available for load-detect\n"); |
5681 | return false; | |
79e53945 JB |
5682 | } |
5683 | ||
5684 | encoder->crtc = crtc; | |
c1c43977 | 5685 | connector->encoder = encoder; |
79e53945 JB |
5686 | |
5687 | intel_crtc = to_intel_crtc(crtc); | |
8261b191 CW |
5688 | old->dpms_mode = intel_crtc->dpms_mode; |
5689 | old->load_detect_temp = true; | |
d2dff872 | 5690 | old->release_fb = NULL; |
79e53945 | 5691 | |
6492711d CW |
5692 | if (!mode) |
5693 | mode = &load_detect_mode; | |
79e53945 | 5694 | |
d2dff872 CW |
5695 | old_fb = crtc->fb; |
5696 | ||
5697 | /* We need a framebuffer large enough to accommodate all accesses | |
5698 | * that the plane may generate whilst we perform load detection. | |
5699 | * We can not rely on the fbcon either being present (we get called | |
5700 | * during its initialisation to detect all boot displays, or it may | |
5701 | * not even exist) or that it is large enough to satisfy the | |
5702 | * requested mode. | |
5703 | */ | |
5704 | crtc->fb = mode_fits_in_fbdev(dev, mode); | |
5705 | if (crtc->fb == NULL) { | |
5706 | DRM_DEBUG_KMS("creating tmp fb for load-detection\n"); | |
5707 | crtc->fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32); | |
5708 | old->release_fb = crtc->fb; | |
5709 | } else | |
5710 | DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n"); | |
5711 | if (IS_ERR(crtc->fb)) { | |
5712 | DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n"); | |
5713 | crtc->fb = old_fb; | |
5714 | return false; | |
79e53945 | 5715 | } |
79e53945 | 5716 | |
d2dff872 | 5717 | if (!drm_crtc_helper_set_mode(crtc, mode, 0, 0, old_fb)) { |
6492711d | 5718 | DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n"); |
d2dff872 CW |
5719 | if (old->release_fb) |
5720 | old->release_fb->funcs->destroy(old->release_fb); | |
5721 | crtc->fb = old_fb; | |
6492711d | 5722 | return false; |
79e53945 | 5723 | } |
7173188d | 5724 | |
79e53945 | 5725 | /* let the connector get through one full cycle before testing */ |
9d0498a2 | 5726 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
79e53945 | 5727 | |
7173188d | 5728 | return true; |
79e53945 JB |
5729 | } |
5730 | ||
c1c43977 | 5731 | void intel_release_load_detect_pipe(struct intel_encoder *intel_encoder, |
8261b191 CW |
5732 | struct drm_connector *connector, |
5733 | struct intel_load_detect_pipe *old) | |
79e53945 | 5734 | { |
4ef69c7a | 5735 | struct drm_encoder *encoder = &intel_encoder->base; |
79e53945 JB |
5736 | struct drm_device *dev = encoder->dev; |
5737 | struct drm_crtc *crtc = encoder->crtc; | |
5738 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
5739 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
5740 | ||
d2dff872 CW |
5741 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
5742 | connector->base.id, drm_get_connector_name(connector), | |
5743 | encoder->base.id, drm_get_encoder_name(encoder)); | |
5744 | ||
8261b191 | 5745 | if (old->load_detect_temp) { |
c1c43977 | 5746 | connector->encoder = NULL; |
79e53945 | 5747 | drm_helper_disable_unused_functions(dev); |
d2dff872 CW |
5748 | |
5749 | if (old->release_fb) | |
5750 | old->release_fb->funcs->destroy(old->release_fb); | |
5751 | ||
0622a53c | 5752 | return; |
79e53945 JB |
5753 | } |
5754 | ||
c751ce4f | 5755 | /* Switch crtc and encoder back off if necessary */ |
0622a53c CW |
5756 | if (old->dpms_mode != DRM_MODE_DPMS_ON) { |
5757 | encoder_funcs->dpms(encoder, old->dpms_mode); | |
8261b191 | 5758 | crtc_funcs->dpms(crtc, old->dpms_mode); |
79e53945 JB |
5759 | } |
5760 | } | |
5761 | ||
5762 | /* Returns the clock of the currently programmed mode of the given pipe. */ | |
5763 | static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc) | |
5764 | { | |
5765 | struct drm_i915_private *dev_priv = dev->dev_private; | |
5766 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5767 | int pipe = intel_crtc->pipe; | |
548f245b | 5768 | u32 dpll = I915_READ(DPLL(pipe)); |
79e53945 JB |
5769 | u32 fp; |
5770 | intel_clock_t clock; | |
5771 | ||
5772 | if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) | |
39adb7a5 | 5773 | fp = I915_READ(FP0(pipe)); |
79e53945 | 5774 | else |
39adb7a5 | 5775 | fp = I915_READ(FP1(pipe)); |
79e53945 JB |
5776 | |
5777 | clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; | |
f2b115e6 AJ |
5778 | if (IS_PINEVIEW(dev)) { |
5779 | clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; | |
5780 | clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
2177832f SL |
5781 | } else { |
5782 | clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; | |
5783 | clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
5784 | } | |
5785 | ||
a6c45cf0 | 5786 | if (!IS_GEN2(dev)) { |
f2b115e6 AJ |
5787 | if (IS_PINEVIEW(dev)) |
5788 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >> | |
5789 | DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW); | |
2177832f SL |
5790 | else |
5791 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> | |
79e53945 JB |
5792 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
5793 | ||
5794 | switch (dpll & DPLL_MODE_MASK) { | |
5795 | case DPLLB_MODE_DAC_SERIAL: | |
5796 | clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? | |
5797 | 5 : 10; | |
5798 | break; | |
5799 | case DPLLB_MODE_LVDS: | |
5800 | clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? | |
5801 | 7 : 14; | |
5802 | break; | |
5803 | default: | |
28c97730 | 5804 | DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed " |
79e53945 JB |
5805 | "mode\n", (int)(dpll & DPLL_MODE_MASK)); |
5806 | return 0; | |
5807 | } | |
5808 | ||
5809 | /* XXX: Handle the 100Mhz refclk */ | |
2177832f | 5810 | intel_clock(dev, 96000, &clock); |
79e53945 JB |
5811 | } else { |
5812 | bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN); | |
5813 | ||
5814 | if (is_lvds) { | |
5815 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> | |
5816 | DPLL_FPA01_P1_POST_DIV_SHIFT); | |
5817 | clock.p2 = 14; | |
5818 | ||
5819 | if ((dpll & PLL_REF_INPUT_MASK) == | |
5820 | PLLB_REF_INPUT_SPREADSPECTRUMIN) { | |
5821 | /* XXX: might not be 66MHz */ | |
2177832f | 5822 | intel_clock(dev, 66000, &clock); |
79e53945 | 5823 | } else |
2177832f | 5824 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
5825 | } else { |
5826 | if (dpll & PLL_P1_DIVIDE_BY_TWO) | |
5827 | clock.p1 = 2; | |
5828 | else { | |
5829 | clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> | |
5830 | DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; | |
5831 | } | |
5832 | if (dpll & PLL_P2_DIVIDE_BY_4) | |
5833 | clock.p2 = 4; | |
5834 | else | |
5835 | clock.p2 = 2; | |
5836 | ||
2177832f | 5837 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
5838 | } |
5839 | } | |
5840 | ||
5841 | /* XXX: It would be nice to validate the clocks, but we can't reuse | |
5842 | * i830PllIsValid() because it relies on the xf86_config connector | |
5843 | * configuration being accurate, which it isn't necessarily. | |
5844 | */ | |
5845 | ||
5846 | return clock.dot; | |
5847 | } | |
5848 | ||
5849 | /** Returns the currently programmed mode of the given pipe. */ | |
5850 | struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, | |
5851 | struct drm_crtc *crtc) | |
5852 | { | |
548f245b | 5853 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 JB |
5854 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
5855 | int pipe = intel_crtc->pipe; | |
5856 | struct drm_display_mode *mode; | |
548f245b JB |
5857 | int htot = I915_READ(HTOTAL(pipe)); |
5858 | int hsync = I915_READ(HSYNC(pipe)); | |
5859 | int vtot = I915_READ(VTOTAL(pipe)); | |
5860 | int vsync = I915_READ(VSYNC(pipe)); | |
79e53945 JB |
5861 | |
5862 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); | |
5863 | if (!mode) | |
5864 | return NULL; | |
5865 | ||
5866 | mode->clock = intel_crtc_clock_get(dev, crtc); | |
5867 | mode->hdisplay = (htot & 0xffff) + 1; | |
5868 | mode->htotal = ((htot & 0xffff0000) >> 16) + 1; | |
5869 | mode->hsync_start = (hsync & 0xffff) + 1; | |
5870 | mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; | |
5871 | mode->vdisplay = (vtot & 0xffff) + 1; | |
5872 | mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; | |
5873 | mode->vsync_start = (vsync & 0xffff) + 1; | |
5874 | mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; | |
5875 | ||
5876 | drm_mode_set_name(mode); | |
79e53945 JB |
5877 | |
5878 | return mode; | |
5879 | } | |
5880 | ||
652c393a JB |
5881 | #define GPU_IDLE_TIMEOUT 500 /* ms */ |
5882 | ||
5883 | /* When this timer fires, we've been idle for awhile */ | |
5884 | static void intel_gpu_idle_timer(unsigned long arg) | |
5885 | { | |
5886 | struct drm_device *dev = (struct drm_device *)arg; | |
5887 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5888 | ||
ff7ea4c0 CW |
5889 | if (!list_empty(&dev_priv->mm.active_list)) { |
5890 | /* Still processing requests, so just re-arm the timer. */ | |
5891 | mod_timer(&dev_priv->idle_timer, jiffies + | |
5892 | msecs_to_jiffies(GPU_IDLE_TIMEOUT)); | |
5893 | return; | |
5894 | } | |
652c393a | 5895 | |
ff7ea4c0 | 5896 | dev_priv->busy = false; |
01dfba93 | 5897 | queue_work(dev_priv->wq, &dev_priv->idle_work); |
652c393a JB |
5898 | } |
5899 | ||
652c393a JB |
5900 | #define CRTC_IDLE_TIMEOUT 1000 /* ms */ |
5901 | ||
5902 | static void intel_crtc_idle_timer(unsigned long arg) | |
5903 | { | |
5904 | struct intel_crtc *intel_crtc = (struct intel_crtc *)arg; | |
5905 | struct drm_crtc *crtc = &intel_crtc->base; | |
5906 | drm_i915_private_t *dev_priv = crtc->dev->dev_private; | |
ff7ea4c0 | 5907 | struct intel_framebuffer *intel_fb; |
652c393a | 5908 | |
ff7ea4c0 CW |
5909 | intel_fb = to_intel_framebuffer(crtc->fb); |
5910 | if (intel_fb && intel_fb->obj->active) { | |
5911 | /* The framebuffer is still being accessed by the GPU. */ | |
5912 | mod_timer(&intel_crtc->idle_timer, jiffies + | |
5913 | msecs_to_jiffies(CRTC_IDLE_TIMEOUT)); | |
5914 | return; | |
5915 | } | |
652c393a | 5916 | |
ff7ea4c0 | 5917 | intel_crtc->busy = false; |
01dfba93 | 5918 | queue_work(dev_priv->wq, &dev_priv->idle_work); |
652c393a JB |
5919 | } |
5920 | ||
3dec0095 | 5921 | static void intel_increase_pllclock(struct drm_crtc *crtc) |
652c393a JB |
5922 | { |
5923 | struct drm_device *dev = crtc->dev; | |
5924 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5925 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
5926 | int pipe = intel_crtc->pipe; | |
dbdc6479 JB |
5927 | int dpll_reg = DPLL(pipe); |
5928 | int dpll; | |
652c393a | 5929 | |
bad720ff | 5930 | if (HAS_PCH_SPLIT(dev)) |
652c393a JB |
5931 | return; |
5932 | ||
5933 | if (!dev_priv->lvds_downclock_avail) | |
5934 | return; | |
5935 | ||
dbdc6479 | 5936 | dpll = I915_READ(dpll_reg); |
652c393a | 5937 | if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) { |
44d98a61 | 5938 | DRM_DEBUG_DRIVER("upclocking LVDS\n"); |
652c393a | 5939 | |
8ac5a6d5 | 5940 | assert_panel_unlocked(dev_priv, pipe); |
652c393a JB |
5941 | |
5942 | dpll &= ~DISPLAY_RATE_SELECT_FPA1; | |
5943 | I915_WRITE(dpll_reg, dpll); | |
9d0498a2 | 5944 | intel_wait_for_vblank(dev, pipe); |
dbdc6479 | 5945 | |
652c393a JB |
5946 | dpll = I915_READ(dpll_reg); |
5947 | if (dpll & DISPLAY_RATE_SELECT_FPA1) | |
44d98a61 | 5948 | DRM_DEBUG_DRIVER("failed to upclock LVDS!\n"); |
652c393a JB |
5949 | } |
5950 | ||
5951 | /* Schedule downclock */ | |
3dec0095 DV |
5952 | mod_timer(&intel_crtc->idle_timer, jiffies + |
5953 | msecs_to_jiffies(CRTC_IDLE_TIMEOUT)); | |
652c393a JB |
5954 | } |
5955 | ||
5956 | static void intel_decrease_pllclock(struct drm_crtc *crtc) | |
5957 | { | |
5958 | struct drm_device *dev = crtc->dev; | |
5959 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5960 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
652c393a | 5961 | |
bad720ff | 5962 | if (HAS_PCH_SPLIT(dev)) |
652c393a JB |
5963 | return; |
5964 | ||
5965 | if (!dev_priv->lvds_downclock_avail) | |
5966 | return; | |
5967 | ||
5968 | /* | |
5969 | * Since this is called by a timer, we should never get here in | |
5970 | * the manual case. | |
5971 | */ | |
5972 | if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) { | |
dc257cf1 DV |
5973 | int pipe = intel_crtc->pipe; |
5974 | int dpll_reg = DPLL(pipe); | |
5975 | int dpll; | |
f6e5b160 | 5976 | |
44d98a61 | 5977 | DRM_DEBUG_DRIVER("downclocking LVDS\n"); |
652c393a | 5978 | |
8ac5a6d5 | 5979 | assert_panel_unlocked(dev_priv, pipe); |
652c393a | 5980 | |
dc257cf1 | 5981 | dpll = I915_READ(dpll_reg); |
652c393a JB |
5982 | dpll |= DISPLAY_RATE_SELECT_FPA1; |
5983 | I915_WRITE(dpll_reg, dpll); | |
9d0498a2 | 5984 | intel_wait_for_vblank(dev, pipe); |
652c393a JB |
5985 | dpll = I915_READ(dpll_reg); |
5986 | if (!(dpll & DISPLAY_RATE_SELECT_FPA1)) | |
44d98a61 | 5987 | DRM_DEBUG_DRIVER("failed to downclock LVDS!\n"); |
652c393a JB |
5988 | } |
5989 | ||
5990 | } | |
5991 | ||
5992 | /** | |
5993 | * intel_idle_update - adjust clocks for idleness | |
5994 | * @work: work struct | |
5995 | * | |
5996 | * Either the GPU or display (or both) went idle. Check the busy status | |
5997 | * here and adjust the CRTC and GPU clocks as necessary. | |
5998 | */ | |
5999 | static void intel_idle_update(struct work_struct *work) | |
6000 | { | |
6001 | drm_i915_private_t *dev_priv = container_of(work, drm_i915_private_t, | |
6002 | idle_work); | |
6003 | struct drm_device *dev = dev_priv->dev; | |
6004 | struct drm_crtc *crtc; | |
6005 | struct intel_crtc *intel_crtc; | |
6006 | ||
6007 | if (!i915_powersave) | |
6008 | return; | |
6009 | ||
6010 | mutex_lock(&dev->struct_mutex); | |
6011 | ||
7648fa99 JB |
6012 | i915_update_gfx_val(dev_priv); |
6013 | ||
652c393a JB |
6014 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
6015 | /* Skip inactive CRTCs */ | |
6016 | if (!crtc->fb) | |
6017 | continue; | |
6018 | ||
6019 | intel_crtc = to_intel_crtc(crtc); | |
6020 | if (!intel_crtc->busy) | |
6021 | intel_decrease_pllclock(crtc); | |
6022 | } | |
6023 | ||
45ac22c8 | 6024 | |
652c393a JB |
6025 | mutex_unlock(&dev->struct_mutex); |
6026 | } | |
6027 | ||
6028 | /** | |
6029 | * intel_mark_busy - mark the GPU and possibly the display busy | |
6030 | * @dev: drm device | |
6031 | * @obj: object we're operating on | |
6032 | * | |
6033 | * Callers can use this function to indicate that the GPU is busy processing | |
6034 | * commands. If @obj matches one of the CRTC objects (i.e. it's a scanout | |
6035 | * buffer), we'll also mark the display as busy, so we know to increase its | |
6036 | * clock frequency. | |
6037 | */ | |
05394f39 | 6038 | void intel_mark_busy(struct drm_device *dev, struct drm_i915_gem_object *obj) |
652c393a JB |
6039 | { |
6040 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6041 | struct drm_crtc *crtc = NULL; | |
6042 | struct intel_framebuffer *intel_fb; | |
6043 | struct intel_crtc *intel_crtc; | |
6044 | ||
5e17ee74 ZW |
6045 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
6046 | return; | |
6047 | ||
9104183d CW |
6048 | if (!dev_priv->busy) { |
6049 | intel_sanitize_pm(dev); | |
28cf798f | 6050 | dev_priv->busy = true; |
9104183d | 6051 | } else |
28cf798f CW |
6052 | mod_timer(&dev_priv->idle_timer, jiffies + |
6053 | msecs_to_jiffies(GPU_IDLE_TIMEOUT)); | |
652c393a | 6054 | |
acb87dfb CW |
6055 | if (obj == NULL) |
6056 | return; | |
6057 | ||
652c393a JB |
6058 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
6059 | if (!crtc->fb) | |
6060 | continue; | |
6061 | ||
6062 | intel_crtc = to_intel_crtc(crtc); | |
6063 | intel_fb = to_intel_framebuffer(crtc->fb); | |
6064 | if (intel_fb->obj == obj) { | |
6065 | if (!intel_crtc->busy) { | |
6066 | /* Non-busy -> busy, upclock */ | |
3dec0095 | 6067 | intel_increase_pllclock(crtc); |
652c393a JB |
6068 | intel_crtc->busy = true; |
6069 | } else { | |
6070 | /* Busy -> busy, put off timer */ | |
6071 | mod_timer(&intel_crtc->idle_timer, jiffies + | |
6072 | msecs_to_jiffies(CRTC_IDLE_TIMEOUT)); | |
6073 | } | |
6074 | } | |
6075 | } | |
6076 | } | |
6077 | ||
79e53945 JB |
6078 | static void intel_crtc_destroy(struct drm_crtc *crtc) |
6079 | { | |
6080 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
67e77c5a DV |
6081 | struct drm_device *dev = crtc->dev; |
6082 | struct intel_unpin_work *work; | |
6083 | unsigned long flags; | |
6084 | ||
6085 | spin_lock_irqsave(&dev->event_lock, flags); | |
6086 | work = intel_crtc->unpin_work; | |
6087 | intel_crtc->unpin_work = NULL; | |
6088 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6089 | ||
6090 | if (work) { | |
6091 | cancel_work_sync(&work->work); | |
6092 | kfree(work); | |
6093 | } | |
79e53945 JB |
6094 | |
6095 | drm_crtc_cleanup(crtc); | |
67e77c5a | 6096 | |
79e53945 JB |
6097 | kfree(intel_crtc); |
6098 | } | |
6099 | ||
6b95a207 KH |
6100 | static void intel_unpin_work_fn(struct work_struct *__work) |
6101 | { | |
6102 | struct intel_unpin_work *work = | |
6103 | container_of(__work, struct intel_unpin_work, work); | |
6104 | ||
6105 | mutex_lock(&work->dev->struct_mutex); | |
1690e1eb | 6106 | intel_unpin_fb_obj(work->old_fb_obj); |
05394f39 CW |
6107 | drm_gem_object_unreference(&work->pending_flip_obj->base); |
6108 | drm_gem_object_unreference(&work->old_fb_obj->base); | |
d9e86c0e | 6109 | |
7782de3b | 6110 | intel_update_fbc(work->dev); |
6b95a207 KH |
6111 | mutex_unlock(&work->dev->struct_mutex); |
6112 | kfree(work); | |
6113 | } | |
6114 | ||
1afe3e9d | 6115 | static void do_intel_finish_page_flip(struct drm_device *dev, |
49b14a5c | 6116 | struct drm_crtc *crtc) |
6b95a207 KH |
6117 | { |
6118 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6b95a207 KH |
6119 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6120 | struct intel_unpin_work *work; | |
05394f39 | 6121 | struct drm_i915_gem_object *obj; |
6b95a207 | 6122 | struct drm_pending_vblank_event *e; |
49b14a5c | 6123 | struct timeval tnow, tvbl; |
6b95a207 KH |
6124 | unsigned long flags; |
6125 | ||
6126 | /* Ignore early vblank irqs */ | |
6127 | if (intel_crtc == NULL) | |
6128 | return; | |
6129 | ||
49b14a5c MK |
6130 | do_gettimeofday(&tnow); |
6131 | ||
6b95a207 KH |
6132 | spin_lock_irqsave(&dev->event_lock, flags); |
6133 | work = intel_crtc->unpin_work; | |
6134 | if (work == NULL || !work->pending) { | |
6135 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6136 | return; | |
6137 | } | |
6138 | ||
6139 | intel_crtc->unpin_work = NULL; | |
6b95a207 KH |
6140 | |
6141 | if (work->event) { | |
6142 | e = work->event; | |
49b14a5c | 6143 | e->event.sequence = drm_vblank_count_and_time(dev, intel_crtc->pipe, &tvbl); |
0af7e4df MK |
6144 | |
6145 | /* Called before vblank count and timestamps have | |
6146 | * been updated for the vblank interval of flip | |
6147 | * completion? Need to increment vblank count and | |
6148 | * add one videorefresh duration to returned timestamp | |
49b14a5c MK |
6149 | * to account for this. We assume this happened if we |
6150 | * get called over 0.9 frame durations after the last | |
6151 | * timestamped vblank. | |
6152 | * | |
6153 | * This calculation can not be used with vrefresh rates | |
6154 | * below 5Hz (10Hz to be on the safe side) without | |
6155 | * promoting to 64 integers. | |
0af7e4df | 6156 | */ |
49b14a5c MK |
6157 | if (10 * (timeval_to_ns(&tnow) - timeval_to_ns(&tvbl)) > |
6158 | 9 * crtc->framedur_ns) { | |
0af7e4df | 6159 | e->event.sequence++; |
49b14a5c MK |
6160 | tvbl = ns_to_timeval(timeval_to_ns(&tvbl) + |
6161 | crtc->framedur_ns); | |
0af7e4df MK |
6162 | } |
6163 | ||
49b14a5c MK |
6164 | e->event.tv_sec = tvbl.tv_sec; |
6165 | e->event.tv_usec = tvbl.tv_usec; | |
0af7e4df | 6166 | |
6b95a207 KH |
6167 | list_add_tail(&e->base.link, |
6168 | &e->base.file_priv->event_list); | |
6169 | wake_up_interruptible(&e->base.file_priv->event_wait); | |
6170 | } | |
6171 | ||
0af7e4df MK |
6172 | drm_vblank_put(dev, intel_crtc->pipe); |
6173 | ||
6b95a207 KH |
6174 | spin_unlock_irqrestore(&dev->event_lock, flags); |
6175 | ||
05394f39 | 6176 | obj = work->old_fb_obj; |
d9e86c0e | 6177 | |
e59f2bac | 6178 | atomic_clear_mask(1 << intel_crtc->plane, |
05394f39 CW |
6179 | &obj->pending_flip.counter); |
6180 | if (atomic_read(&obj->pending_flip) == 0) | |
f787a5f5 | 6181 | wake_up(&dev_priv->pending_flip_queue); |
d9e86c0e | 6182 | |
6b95a207 | 6183 | schedule_work(&work->work); |
e5510fac JB |
6184 | |
6185 | trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj); | |
6b95a207 KH |
6186 | } |
6187 | ||
1afe3e9d JB |
6188 | void intel_finish_page_flip(struct drm_device *dev, int pipe) |
6189 | { | |
6190 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6191 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; | |
6192 | ||
49b14a5c | 6193 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
6194 | } |
6195 | ||
6196 | void intel_finish_page_flip_plane(struct drm_device *dev, int plane) | |
6197 | { | |
6198 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6199 | struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane]; | |
6200 | ||
49b14a5c | 6201 | do_intel_finish_page_flip(dev, crtc); |
1afe3e9d JB |
6202 | } |
6203 | ||
6b95a207 KH |
6204 | void intel_prepare_page_flip(struct drm_device *dev, int plane) |
6205 | { | |
6206 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6207 | struct intel_crtc *intel_crtc = | |
6208 | to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]); | |
6209 | unsigned long flags; | |
6210 | ||
6211 | spin_lock_irqsave(&dev->event_lock, flags); | |
de3f440f | 6212 | if (intel_crtc->unpin_work) { |
4e5359cd SF |
6213 | if ((++intel_crtc->unpin_work->pending) > 1) |
6214 | DRM_ERROR("Prepared flip multiple times\n"); | |
de3f440f JB |
6215 | } else { |
6216 | DRM_DEBUG_DRIVER("preparing flip with no unpin work?\n"); | |
6217 | } | |
6b95a207 KH |
6218 | spin_unlock_irqrestore(&dev->event_lock, flags); |
6219 | } | |
6220 | ||
8c9f3aaf JB |
6221 | static int intel_gen2_queue_flip(struct drm_device *dev, |
6222 | struct drm_crtc *crtc, | |
6223 | struct drm_framebuffer *fb, | |
6224 | struct drm_i915_gem_object *obj) | |
6225 | { | |
6226 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6227 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
8c9f3aaf | 6228 | u32 flip_mask; |
6d90c952 | 6229 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
6230 | int ret; |
6231 | ||
6d90c952 | 6232 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 6233 | if (ret) |
83d4092b | 6234 | goto err; |
8c9f3aaf | 6235 | |
6d90c952 | 6236 | ret = intel_ring_begin(ring, 6); |
8c9f3aaf | 6237 | if (ret) |
83d4092b | 6238 | goto err_unpin; |
8c9f3aaf JB |
6239 | |
6240 | /* Can't queue multiple flips, so wait for the previous | |
6241 | * one to finish before executing the next. | |
6242 | */ | |
6243 | if (intel_crtc->plane) | |
6244 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
6245 | else | |
6246 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
6247 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
6248 | intel_ring_emit(ring, MI_NOOP); | |
6249 | intel_ring_emit(ring, MI_DISPLAY_FLIP | | |
6250 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
6251 | intel_ring_emit(ring, fb->pitches[0]); | |
e506a0c6 | 6252 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
6d90c952 DV |
6253 | intel_ring_emit(ring, 0); /* aux display base address, unused */ |
6254 | intel_ring_advance(ring); | |
83d4092b CW |
6255 | return 0; |
6256 | ||
6257 | err_unpin: | |
6258 | intel_unpin_fb_obj(obj); | |
6259 | err: | |
8c9f3aaf JB |
6260 | return ret; |
6261 | } | |
6262 | ||
6263 | static int intel_gen3_queue_flip(struct drm_device *dev, | |
6264 | struct drm_crtc *crtc, | |
6265 | struct drm_framebuffer *fb, | |
6266 | struct drm_i915_gem_object *obj) | |
6267 | { | |
6268 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6269 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
8c9f3aaf | 6270 | u32 flip_mask; |
6d90c952 | 6271 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
6272 | int ret; |
6273 | ||
6d90c952 | 6274 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 6275 | if (ret) |
83d4092b | 6276 | goto err; |
8c9f3aaf | 6277 | |
6d90c952 | 6278 | ret = intel_ring_begin(ring, 6); |
8c9f3aaf | 6279 | if (ret) |
83d4092b | 6280 | goto err_unpin; |
8c9f3aaf JB |
6281 | |
6282 | if (intel_crtc->plane) | |
6283 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; | |
6284 | else | |
6285 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; | |
6d90c952 DV |
6286 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
6287 | intel_ring_emit(ring, MI_NOOP); | |
6288 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | | |
6289 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
6290 | intel_ring_emit(ring, fb->pitches[0]); | |
e506a0c6 | 6291 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
6d90c952 DV |
6292 | intel_ring_emit(ring, MI_NOOP); |
6293 | ||
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_gen4_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); | |
6310 | uint32_t pf, pipesrc; | |
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, 4); |
8c9f3aaf | 6319 | if (ret) |
83d4092b | 6320 | goto err_unpin; |
8c9f3aaf JB |
6321 | |
6322 | /* i965+ uses the linear or tiled offsets from the | |
6323 | * Display Registers (which do not change across a page-flip) | |
6324 | * so we need only reprogram the base address. | |
6325 | */ | |
6d90c952 DV |
6326 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
6327 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
6328 | intel_ring_emit(ring, fb->pitches[0]); | |
c2c75131 DV |
6329 | intel_ring_emit(ring, |
6330 | (obj->gtt_offset + intel_crtc->dspaddr_offset) | | |
6331 | obj->tiling_mode); | |
8c9f3aaf JB |
6332 | |
6333 | /* XXX Enabling the panel-fitter across page-flip is so far | |
6334 | * untested on non-native modes, so ignore it for now. | |
6335 | * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE; | |
6336 | */ | |
6337 | pf = 0; | |
6338 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; | |
6d90c952 DV |
6339 | intel_ring_emit(ring, pf | pipesrc); |
6340 | intel_ring_advance(ring); | |
83d4092b CW |
6341 | return 0; |
6342 | ||
6343 | err_unpin: | |
6344 | intel_unpin_fb_obj(obj); | |
6345 | err: | |
8c9f3aaf JB |
6346 | return ret; |
6347 | } | |
6348 | ||
6349 | static int intel_gen6_queue_flip(struct drm_device *dev, | |
6350 | struct drm_crtc *crtc, | |
6351 | struct drm_framebuffer *fb, | |
6352 | struct drm_i915_gem_object *obj) | |
6353 | { | |
6354 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6355 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6d90c952 | 6356 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
8c9f3aaf JB |
6357 | uint32_t pf, pipesrc; |
6358 | int ret; | |
6359 | ||
6d90c952 | 6360 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
8c9f3aaf | 6361 | if (ret) |
83d4092b | 6362 | goto err; |
8c9f3aaf | 6363 | |
6d90c952 | 6364 | ret = intel_ring_begin(ring, 4); |
8c9f3aaf | 6365 | if (ret) |
83d4092b | 6366 | goto err_unpin; |
8c9f3aaf | 6367 | |
6d90c952 DV |
6368 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
6369 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); | |
6370 | intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode); | |
c2c75131 | 6371 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
8c9f3aaf | 6372 | |
dc257cf1 DV |
6373 | /* Contrary to the suggestions in the documentation, |
6374 | * "Enable Panel Fitter" does not seem to be required when page | |
6375 | * flipping with a non-native mode, and worse causes a normal | |
6376 | * modeset to fail. | |
6377 | * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE; | |
6378 | */ | |
6379 | pf = 0; | |
8c9f3aaf | 6380 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; |
6d90c952 DV |
6381 | intel_ring_emit(ring, pf | pipesrc); |
6382 | intel_ring_advance(ring); | |
83d4092b CW |
6383 | return 0; |
6384 | ||
6385 | err_unpin: | |
6386 | intel_unpin_fb_obj(obj); | |
6387 | err: | |
8c9f3aaf JB |
6388 | return ret; |
6389 | } | |
6390 | ||
7c9017e5 JB |
6391 | /* |
6392 | * On gen7 we currently use the blit ring because (in early silicon at least) | |
6393 | * the render ring doesn't give us interrpts for page flip completion, which | |
6394 | * means clients will hang after the first flip is queued. Fortunately the | |
6395 | * blit ring generates interrupts properly, so use it instead. | |
6396 | */ | |
6397 | static int intel_gen7_queue_flip(struct drm_device *dev, | |
6398 | struct drm_crtc *crtc, | |
6399 | struct drm_framebuffer *fb, | |
6400 | struct drm_i915_gem_object *obj) | |
6401 | { | |
6402 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6403 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6404 | struct intel_ring_buffer *ring = &dev_priv->ring[BCS]; | |
cb05d8de | 6405 | uint32_t plane_bit = 0; |
7c9017e5 JB |
6406 | int ret; |
6407 | ||
6408 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); | |
6409 | if (ret) | |
83d4092b | 6410 | goto err; |
7c9017e5 | 6411 | |
cb05d8de DV |
6412 | switch(intel_crtc->plane) { |
6413 | case PLANE_A: | |
6414 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A; | |
6415 | break; | |
6416 | case PLANE_B: | |
6417 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B; | |
6418 | break; | |
6419 | case PLANE_C: | |
6420 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C; | |
6421 | break; | |
6422 | default: | |
6423 | WARN_ONCE(1, "unknown plane in flip command\n"); | |
6424 | ret = -ENODEV; | |
6425 | goto err; | |
6426 | } | |
6427 | ||
7c9017e5 JB |
6428 | ret = intel_ring_begin(ring, 4); |
6429 | if (ret) | |
83d4092b | 6430 | goto err_unpin; |
7c9017e5 | 6431 | |
cb05d8de | 6432 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit); |
01f2c773 | 6433 | intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode)); |
c2c75131 | 6434 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
7c9017e5 JB |
6435 | intel_ring_emit(ring, (MI_NOOP)); |
6436 | intel_ring_advance(ring); | |
83d4092b CW |
6437 | return 0; |
6438 | ||
6439 | err_unpin: | |
6440 | intel_unpin_fb_obj(obj); | |
6441 | err: | |
7c9017e5 JB |
6442 | return ret; |
6443 | } | |
6444 | ||
8c9f3aaf JB |
6445 | static int intel_default_queue_flip(struct drm_device *dev, |
6446 | struct drm_crtc *crtc, | |
6447 | struct drm_framebuffer *fb, | |
6448 | struct drm_i915_gem_object *obj) | |
6449 | { | |
6450 | return -ENODEV; | |
6451 | } | |
6452 | ||
6b95a207 KH |
6453 | static int intel_crtc_page_flip(struct drm_crtc *crtc, |
6454 | struct drm_framebuffer *fb, | |
6455 | struct drm_pending_vblank_event *event) | |
6456 | { | |
6457 | struct drm_device *dev = crtc->dev; | |
6458 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6459 | struct intel_framebuffer *intel_fb; | |
05394f39 | 6460 | struct drm_i915_gem_object *obj; |
6b95a207 KH |
6461 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
6462 | struct intel_unpin_work *work; | |
8c9f3aaf | 6463 | unsigned long flags; |
52e68630 | 6464 | int ret; |
6b95a207 | 6465 | |
e6a595d2 VS |
6466 | /* Can't change pixel format via MI display flips. */ |
6467 | if (fb->pixel_format != crtc->fb->pixel_format) | |
6468 | return -EINVAL; | |
6469 | ||
6470 | /* | |
6471 | * TILEOFF/LINOFF registers can't be changed via MI display flips. | |
6472 | * Note that pitch changes could also affect these register. | |
6473 | */ | |
6474 | if (INTEL_INFO(dev)->gen > 3 && | |
6475 | (fb->offsets[0] != crtc->fb->offsets[0] || | |
6476 | fb->pitches[0] != crtc->fb->pitches[0])) | |
6477 | return -EINVAL; | |
6478 | ||
6b95a207 KH |
6479 | work = kzalloc(sizeof *work, GFP_KERNEL); |
6480 | if (work == NULL) | |
6481 | return -ENOMEM; | |
6482 | ||
6b95a207 KH |
6483 | work->event = event; |
6484 | work->dev = crtc->dev; | |
6485 | intel_fb = to_intel_framebuffer(crtc->fb); | |
b1b87f6b | 6486 | work->old_fb_obj = intel_fb->obj; |
6b95a207 KH |
6487 | INIT_WORK(&work->work, intel_unpin_work_fn); |
6488 | ||
7317c75e JB |
6489 | ret = drm_vblank_get(dev, intel_crtc->pipe); |
6490 | if (ret) | |
6491 | goto free_work; | |
6492 | ||
6b95a207 KH |
6493 | /* We borrow the event spin lock for protecting unpin_work */ |
6494 | spin_lock_irqsave(&dev->event_lock, flags); | |
6495 | if (intel_crtc->unpin_work) { | |
6496 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6497 | kfree(work); | |
7317c75e | 6498 | drm_vblank_put(dev, intel_crtc->pipe); |
468f0b44 CW |
6499 | |
6500 | DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); | |
6b95a207 KH |
6501 | return -EBUSY; |
6502 | } | |
6503 | intel_crtc->unpin_work = work; | |
6504 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6505 | ||
6506 | intel_fb = to_intel_framebuffer(fb); | |
6507 | obj = intel_fb->obj; | |
6508 | ||
468f0b44 | 6509 | mutex_lock(&dev->struct_mutex); |
6b95a207 | 6510 | |
75dfca80 | 6511 | /* Reference the objects for the scheduled work. */ |
05394f39 CW |
6512 | drm_gem_object_reference(&work->old_fb_obj->base); |
6513 | drm_gem_object_reference(&obj->base); | |
6b95a207 KH |
6514 | |
6515 | crtc->fb = fb; | |
96b099fd | 6516 | |
e1f99ce6 | 6517 | work->pending_flip_obj = obj; |
e1f99ce6 | 6518 | |
4e5359cd SF |
6519 | work->enable_stall_check = true; |
6520 | ||
e1f99ce6 CW |
6521 | /* Block clients from rendering to the new back buffer until |
6522 | * the flip occurs and the object is no longer visible. | |
6523 | */ | |
05394f39 | 6524 | atomic_add(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); |
e1f99ce6 | 6525 | |
8c9f3aaf JB |
6526 | ret = dev_priv->display.queue_flip(dev, crtc, fb, obj); |
6527 | if (ret) | |
6528 | goto cleanup_pending; | |
6b95a207 | 6529 | |
7782de3b | 6530 | intel_disable_fbc(dev); |
acb87dfb | 6531 | intel_mark_busy(dev, obj); |
6b95a207 KH |
6532 | mutex_unlock(&dev->struct_mutex); |
6533 | ||
e5510fac JB |
6534 | trace_i915_flip_request(intel_crtc->plane, obj); |
6535 | ||
6b95a207 | 6536 | return 0; |
96b099fd | 6537 | |
8c9f3aaf JB |
6538 | cleanup_pending: |
6539 | atomic_sub(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); | |
05394f39 CW |
6540 | drm_gem_object_unreference(&work->old_fb_obj->base); |
6541 | drm_gem_object_unreference(&obj->base); | |
96b099fd CW |
6542 | mutex_unlock(&dev->struct_mutex); |
6543 | ||
6544 | spin_lock_irqsave(&dev->event_lock, flags); | |
6545 | intel_crtc->unpin_work = NULL; | |
6546 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
6547 | ||
7317c75e JB |
6548 | drm_vblank_put(dev, intel_crtc->pipe); |
6549 | free_work: | |
96b099fd CW |
6550 | kfree(work); |
6551 | ||
6552 | return ret; | |
6b95a207 KH |
6553 | } |
6554 | ||
47f1c6c9 CW |
6555 | static void intel_sanitize_modesetting(struct drm_device *dev, |
6556 | int pipe, int plane) | |
6557 | { | |
6558 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6559 | u32 reg, val; | |
a9dcf84b | 6560 | int i; |
47f1c6c9 | 6561 | |
f47166d2 | 6562 | /* Clear any frame start delays used for debugging left by the BIOS */ |
a9dcf84b DV |
6563 | for_each_pipe(i) { |
6564 | reg = PIPECONF(i); | |
f47166d2 CW |
6565 | I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK); |
6566 | } | |
6567 | ||
47f1c6c9 CW |
6568 | if (HAS_PCH_SPLIT(dev)) |
6569 | return; | |
6570 | ||
6571 | /* Who knows what state these registers were left in by the BIOS or | |
6572 | * grub? | |
6573 | * | |
6574 | * If we leave the registers in a conflicting state (e.g. with the | |
6575 | * display plane reading from the other pipe than the one we intend | |
6576 | * to use) then when we attempt to teardown the active mode, we will | |
6577 | * not disable the pipes and planes in the correct order -- leaving | |
6578 | * a plane reading from a disabled pipe and possibly leading to | |
6579 | * undefined behaviour. | |
6580 | */ | |
6581 | ||
6582 | reg = DSPCNTR(plane); | |
6583 | val = I915_READ(reg); | |
6584 | ||
6585 | if ((val & DISPLAY_PLANE_ENABLE) == 0) | |
6586 | return; | |
6587 | if (!!(val & DISPPLANE_SEL_PIPE_MASK) == pipe) | |
6588 | return; | |
6589 | ||
6590 | /* This display plane is active and attached to the other CPU pipe. */ | |
6591 | pipe = !pipe; | |
6592 | ||
6593 | /* Disable the plane and wait for it to stop reading from the pipe. */ | |
b24e7179 JB |
6594 | intel_disable_plane(dev_priv, plane, pipe); |
6595 | intel_disable_pipe(dev_priv, pipe); | |
47f1c6c9 | 6596 | } |
79e53945 | 6597 | |
f6e5b160 CW |
6598 | static void intel_crtc_reset(struct drm_crtc *crtc) |
6599 | { | |
6600 | struct drm_device *dev = crtc->dev; | |
6601 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6602 | ||
6603 | /* Reset flags back to the 'unknown' status so that they | |
6604 | * will be correctly set on the initial modeset. | |
6605 | */ | |
6606 | intel_crtc->dpms_mode = -1; | |
6607 | ||
6608 | /* We need to fix up any BIOS configuration that conflicts with | |
6609 | * our expectations. | |
6610 | */ | |
6611 | intel_sanitize_modesetting(dev, intel_crtc->pipe, intel_crtc->plane); | |
6612 | } | |
6613 | ||
6614 | static struct drm_crtc_helper_funcs intel_helper_funcs = { | |
6615 | .dpms = intel_crtc_dpms, | |
6616 | .mode_fixup = intel_crtc_mode_fixup, | |
6617 | .mode_set = intel_crtc_mode_set, | |
6618 | .mode_set_base = intel_pipe_set_base, | |
6619 | .mode_set_base_atomic = intel_pipe_set_base_atomic, | |
6620 | .load_lut = intel_crtc_load_lut, | |
6621 | .disable = intel_crtc_disable, | |
6622 | }; | |
6623 | ||
6624 | static const struct drm_crtc_funcs intel_crtc_funcs = { | |
6625 | .reset = intel_crtc_reset, | |
6626 | .cursor_set = intel_crtc_cursor_set, | |
6627 | .cursor_move = intel_crtc_cursor_move, | |
6628 | .gamma_set = intel_crtc_gamma_set, | |
6629 | .set_config = drm_crtc_helper_set_config, | |
6630 | .destroy = intel_crtc_destroy, | |
6631 | .page_flip = intel_crtc_page_flip, | |
6632 | }; | |
6633 | ||
ee7b9f93 JB |
6634 | static void intel_pch_pll_init(struct drm_device *dev) |
6635 | { | |
6636 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6637 | int i; | |
6638 | ||
6639 | if (dev_priv->num_pch_pll == 0) { | |
6640 | DRM_DEBUG_KMS("No PCH PLLs on this hardware, skipping initialisation\n"); | |
6641 | return; | |
6642 | } | |
6643 | ||
6644 | for (i = 0; i < dev_priv->num_pch_pll; i++) { | |
6645 | dev_priv->pch_plls[i].pll_reg = _PCH_DPLL(i); | |
6646 | dev_priv->pch_plls[i].fp0_reg = _PCH_FP0(i); | |
6647 | dev_priv->pch_plls[i].fp1_reg = _PCH_FP1(i); | |
6648 | } | |
6649 | } | |
6650 | ||
b358d0a6 | 6651 | static void intel_crtc_init(struct drm_device *dev, int pipe) |
79e53945 | 6652 | { |
22fd0fab | 6653 | drm_i915_private_t *dev_priv = dev->dev_private; |
79e53945 JB |
6654 | struct intel_crtc *intel_crtc; |
6655 | int i; | |
6656 | ||
6657 | intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL); | |
6658 | if (intel_crtc == NULL) | |
6659 | return; | |
6660 | ||
6661 | drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs); | |
6662 | ||
6663 | drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256); | |
79e53945 JB |
6664 | for (i = 0; i < 256; i++) { |
6665 | intel_crtc->lut_r[i] = i; | |
6666 | intel_crtc->lut_g[i] = i; | |
6667 | intel_crtc->lut_b[i] = i; | |
6668 | } | |
6669 | ||
80824003 JB |
6670 | /* Swap pipes & planes for FBC on pre-965 */ |
6671 | intel_crtc->pipe = pipe; | |
6672 | intel_crtc->plane = pipe; | |
e2e767ab | 6673 | if (IS_MOBILE(dev) && IS_GEN3(dev)) { |
28c97730 | 6674 | DRM_DEBUG_KMS("swapping pipes & planes for FBC\n"); |
e2e767ab | 6675 | intel_crtc->plane = !pipe; |
80824003 JB |
6676 | } |
6677 | ||
22fd0fab JB |
6678 | BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) || |
6679 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL); | |
6680 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base; | |
6681 | dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base; | |
6682 | ||
5d1d0cc8 | 6683 | intel_crtc_reset(&intel_crtc->base); |
04dbff52 | 6684 | intel_crtc->active = true; /* force the pipe off on setup_init_config */ |
5a354204 | 6685 | intel_crtc->bpp = 24; /* default for pre-Ironlake */ |
7e7d76c3 JB |
6686 | |
6687 | if (HAS_PCH_SPLIT(dev)) { | |
6688 | intel_helper_funcs.prepare = ironlake_crtc_prepare; | |
6689 | intel_helper_funcs.commit = ironlake_crtc_commit; | |
6690 | } else { | |
6691 | intel_helper_funcs.prepare = i9xx_crtc_prepare; | |
6692 | intel_helper_funcs.commit = i9xx_crtc_commit; | |
6693 | } | |
6694 | ||
79e53945 JB |
6695 | drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); |
6696 | ||
652c393a JB |
6697 | intel_crtc->busy = false; |
6698 | ||
6699 | setup_timer(&intel_crtc->idle_timer, intel_crtc_idle_timer, | |
6700 | (unsigned long)intel_crtc); | |
79e53945 JB |
6701 | } |
6702 | ||
08d7b3d1 | 6703 | int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, |
05394f39 | 6704 | struct drm_file *file) |
08d7b3d1 | 6705 | { |
08d7b3d1 | 6706 | struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; |
c05422d5 DV |
6707 | struct drm_mode_object *drmmode_obj; |
6708 | struct intel_crtc *crtc; | |
08d7b3d1 | 6709 | |
1cff8f6b DV |
6710 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
6711 | return -ENODEV; | |
08d7b3d1 | 6712 | |
c05422d5 DV |
6713 | drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id, |
6714 | DRM_MODE_OBJECT_CRTC); | |
08d7b3d1 | 6715 | |
c05422d5 | 6716 | if (!drmmode_obj) { |
08d7b3d1 CW |
6717 | DRM_ERROR("no such CRTC id\n"); |
6718 | return -EINVAL; | |
6719 | } | |
6720 | ||
c05422d5 DV |
6721 | crtc = to_intel_crtc(obj_to_crtc(drmmode_obj)); |
6722 | pipe_from_crtc_id->pipe = crtc->pipe; | |
08d7b3d1 | 6723 | |
c05422d5 | 6724 | return 0; |
08d7b3d1 CW |
6725 | } |
6726 | ||
c5e4df33 | 6727 | static int intel_encoder_clones(struct drm_device *dev, int type_mask) |
79e53945 | 6728 | { |
4ef69c7a | 6729 | struct intel_encoder *encoder; |
79e53945 | 6730 | int index_mask = 0; |
79e53945 JB |
6731 | int entry = 0; |
6732 | ||
4ef69c7a CW |
6733 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
6734 | if (type_mask & encoder->clone_mask) | |
79e53945 JB |
6735 | index_mask |= (1 << entry); |
6736 | entry++; | |
6737 | } | |
4ef69c7a | 6738 | |
79e53945 JB |
6739 | return index_mask; |
6740 | } | |
6741 | ||
4d302442 CW |
6742 | static bool has_edp_a(struct drm_device *dev) |
6743 | { | |
6744 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6745 | ||
6746 | if (!IS_MOBILE(dev)) | |
6747 | return false; | |
6748 | ||
6749 | if ((I915_READ(DP_A) & DP_DETECTED) == 0) | |
6750 | return false; | |
6751 | ||
6752 | if (IS_GEN5(dev) && | |
6753 | (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE)) | |
6754 | return false; | |
6755 | ||
6756 | return true; | |
6757 | } | |
6758 | ||
79e53945 JB |
6759 | static void intel_setup_outputs(struct drm_device *dev) |
6760 | { | |
725e30ad | 6761 | struct drm_i915_private *dev_priv = dev->dev_private; |
4ef69c7a | 6762 | struct intel_encoder *encoder; |
cb0953d7 | 6763 | bool dpd_is_edp = false; |
f3cfcba6 | 6764 | bool has_lvds; |
79e53945 | 6765 | |
f3cfcba6 | 6766 | has_lvds = intel_lvds_init(dev); |
c5d1b51d CW |
6767 | if (!has_lvds && !HAS_PCH_SPLIT(dev)) { |
6768 | /* disable the panel fitter on everything but LVDS */ | |
6769 | I915_WRITE(PFIT_CONTROL, 0); | |
6770 | } | |
79e53945 | 6771 | |
bad720ff | 6772 | if (HAS_PCH_SPLIT(dev)) { |
cb0953d7 | 6773 | dpd_is_edp = intel_dpd_is_edp(dev); |
30ad48b7 | 6774 | |
4d302442 | 6775 | if (has_edp_a(dev)) |
32f9d658 ZW |
6776 | intel_dp_init(dev, DP_A); |
6777 | ||
cb0953d7 AJ |
6778 | if (dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED)) |
6779 | intel_dp_init(dev, PCH_DP_D); | |
6780 | } | |
6781 | ||
6782 | intel_crt_init(dev); | |
6783 | ||
0e72a5b5 ED |
6784 | if (IS_HASWELL(dev)) { |
6785 | int found; | |
6786 | ||
6787 | /* Haswell uses DDI functions to detect digital outputs */ | |
6788 | found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED; | |
6789 | /* DDI A only supports eDP */ | |
6790 | if (found) | |
6791 | intel_ddi_init(dev, PORT_A); | |
6792 | ||
6793 | /* DDI B, C and D detection is indicated by the SFUSE_STRAP | |
6794 | * register */ | |
6795 | found = I915_READ(SFUSE_STRAP); | |
6796 | ||
6797 | if (found & SFUSE_STRAP_DDIB_DETECTED) | |
6798 | intel_ddi_init(dev, PORT_B); | |
6799 | if (found & SFUSE_STRAP_DDIC_DETECTED) | |
6800 | intel_ddi_init(dev, PORT_C); | |
6801 | if (found & SFUSE_STRAP_DDID_DETECTED) | |
6802 | intel_ddi_init(dev, PORT_D); | |
6803 | } else if (HAS_PCH_SPLIT(dev)) { | |
cb0953d7 AJ |
6804 | int found; |
6805 | ||
30ad48b7 | 6806 | if (I915_READ(HDMIB) & PORT_DETECTED) { |
461ed3ca | 6807 | /* PCH SDVOB multiplex with HDMIB */ |
eef4eacb | 6808 | found = intel_sdvo_init(dev, PCH_SDVOB, true); |
30ad48b7 ZW |
6809 | if (!found) |
6810 | intel_hdmi_init(dev, HDMIB); | |
5eb08b69 ZW |
6811 | if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) |
6812 | intel_dp_init(dev, PCH_DP_B); | |
30ad48b7 ZW |
6813 | } |
6814 | ||
6815 | if (I915_READ(HDMIC) & PORT_DETECTED) | |
6816 | intel_hdmi_init(dev, HDMIC); | |
6817 | ||
b708a1d5 | 6818 | if (!dpd_is_edp && I915_READ(HDMID) & PORT_DETECTED) |
30ad48b7 ZW |
6819 | intel_hdmi_init(dev, HDMID); |
6820 | ||
5eb08b69 ZW |
6821 | if (I915_READ(PCH_DP_C) & DP_DETECTED) |
6822 | intel_dp_init(dev, PCH_DP_C); | |
6823 | ||
cb0953d7 | 6824 | if (!dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED)) |
5eb08b69 | 6825 | intel_dp_init(dev, PCH_DP_D); |
4a87d65d JB |
6826 | } else if (IS_VALLEYVIEW(dev)) { |
6827 | int found; | |
6828 | ||
6829 | if (I915_READ(SDVOB) & PORT_DETECTED) { | |
6830 | /* SDVOB multiplex with HDMIB */ | |
6831 | found = intel_sdvo_init(dev, SDVOB, true); | |
6832 | if (!found) | |
6833 | intel_hdmi_init(dev, SDVOB); | |
6834 | if (!found && (I915_READ(DP_B) & DP_DETECTED)) | |
6835 | intel_dp_init(dev, DP_B); | |
6836 | } | |
6837 | ||
6838 | if (I915_READ(SDVOC) & PORT_DETECTED) | |
6839 | intel_hdmi_init(dev, SDVOC); | |
5eb08b69 | 6840 | |
4a87d65d JB |
6841 | /* Shares lanes with HDMI on SDVOC */ |
6842 | if (I915_READ(DP_C) & DP_DETECTED) | |
6843 | intel_dp_init(dev, DP_C); | |
103a196f | 6844 | } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) { |
27185ae1 | 6845 | bool found = false; |
7d57382e | 6846 | |
725e30ad | 6847 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
b01f2c3a | 6848 | DRM_DEBUG_KMS("probing SDVOB\n"); |
eef4eacb | 6849 | found = intel_sdvo_init(dev, SDVOB, true); |
b01f2c3a JB |
6850 | if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) { |
6851 | DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); | |
725e30ad | 6852 | intel_hdmi_init(dev, SDVOB); |
b01f2c3a | 6853 | } |
27185ae1 | 6854 | |
b01f2c3a JB |
6855 | if (!found && SUPPORTS_INTEGRATED_DP(dev)) { |
6856 | DRM_DEBUG_KMS("probing DP_B\n"); | |
a4fc5ed6 | 6857 | intel_dp_init(dev, DP_B); |
b01f2c3a | 6858 | } |
725e30ad | 6859 | } |
13520b05 KH |
6860 | |
6861 | /* Before G4X SDVOC doesn't have its own detect register */ | |
13520b05 | 6862 | |
b01f2c3a JB |
6863 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
6864 | DRM_DEBUG_KMS("probing SDVOC\n"); | |
eef4eacb | 6865 | found = intel_sdvo_init(dev, SDVOC, false); |
b01f2c3a | 6866 | } |
27185ae1 ML |
6867 | |
6868 | if (!found && (I915_READ(SDVOC) & SDVO_DETECTED)) { | |
6869 | ||
b01f2c3a JB |
6870 | if (SUPPORTS_INTEGRATED_HDMI(dev)) { |
6871 | DRM_DEBUG_KMS("probing HDMI on SDVOC\n"); | |
725e30ad | 6872 | intel_hdmi_init(dev, SDVOC); |
b01f2c3a JB |
6873 | } |
6874 | if (SUPPORTS_INTEGRATED_DP(dev)) { | |
6875 | DRM_DEBUG_KMS("probing DP_C\n"); | |
a4fc5ed6 | 6876 | intel_dp_init(dev, DP_C); |
b01f2c3a | 6877 | } |
725e30ad | 6878 | } |
27185ae1 | 6879 | |
b01f2c3a JB |
6880 | if (SUPPORTS_INTEGRATED_DP(dev) && |
6881 | (I915_READ(DP_D) & DP_DETECTED)) { | |
6882 | DRM_DEBUG_KMS("probing DP_D\n"); | |
a4fc5ed6 | 6883 | intel_dp_init(dev, DP_D); |
b01f2c3a | 6884 | } |
bad720ff | 6885 | } else if (IS_GEN2(dev)) |
79e53945 JB |
6886 | intel_dvo_init(dev); |
6887 | ||
103a196f | 6888 | if (SUPPORTS_TV(dev)) |
79e53945 JB |
6889 | intel_tv_init(dev); |
6890 | ||
4ef69c7a CW |
6891 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
6892 | encoder->base.possible_crtcs = encoder->crtc_mask; | |
6893 | encoder->base.possible_clones = | |
6894 | intel_encoder_clones(dev, encoder->clone_mask); | |
79e53945 | 6895 | } |
47356eb6 | 6896 | |
2c7111db CW |
6897 | /* disable all the possible outputs/crtcs before entering KMS mode */ |
6898 | drm_helper_disable_unused_functions(dev); | |
9fb526db | 6899 | |
40579abe | 6900 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) |
9fb526db | 6901 | ironlake_init_pch_refclk(dev); |
79e53945 JB |
6902 | } |
6903 | ||
6904 | static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb) | |
6905 | { | |
6906 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
79e53945 JB |
6907 | |
6908 | drm_framebuffer_cleanup(fb); | |
05394f39 | 6909 | drm_gem_object_unreference_unlocked(&intel_fb->obj->base); |
79e53945 JB |
6910 | |
6911 | kfree(intel_fb); | |
6912 | } | |
6913 | ||
6914 | static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb, | |
05394f39 | 6915 | struct drm_file *file, |
79e53945 JB |
6916 | unsigned int *handle) |
6917 | { | |
6918 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
05394f39 | 6919 | struct drm_i915_gem_object *obj = intel_fb->obj; |
79e53945 | 6920 | |
05394f39 | 6921 | return drm_gem_handle_create(file, &obj->base, handle); |
79e53945 JB |
6922 | } |
6923 | ||
6924 | static const struct drm_framebuffer_funcs intel_fb_funcs = { | |
6925 | .destroy = intel_user_framebuffer_destroy, | |
6926 | .create_handle = intel_user_framebuffer_create_handle, | |
6927 | }; | |
6928 | ||
38651674 DA |
6929 | int intel_framebuffer_init(struct drm_device *dev, |
6930 | struct intel_framebuffer *intel_fb, | |
308e5bcb | 6931 | struct drm_mode_fb_cmd2 *mode_cmd, |
05394f39 | 6932 | struct drm_i915_gem_object *obj) |
79e53945 | 6933 | { |
79e53945 JB |
6934 | int ret; |
6935 | ||
05394f39 | 6936 | if (obj->tiling_mode == I915_TILING_Y) |
57cd6508 CW |
6937 | return -EINVAL; |
6938 | ||
308e5bcb | 6939 | if (mode_cmd->pitches[0] & 63) |
57cd6508 CW |
6940 | return -EINVAL; |
6941 | ||
308e5bcb | 6942 | switch (mode_cmd->pixel_format) { |
04b3924d VS |
6943 | case DRM_FORMAT_RGB332: |
6944 | case DRM_FORMAT_RGB565: | |
6945 | case DRM_FORMAT_XRGB8888: | |
b250da79 | 6946 | case DRM_FORMAT_XBGR8888: |
04b3924d VS |
6947 | case DRM_FORMAT_ARGB8888: |
6948 | case DRM_FORMAT_XRGB2101010: | |
6949 | case DRM_FORMAT_ARGB2101010: | |
308e5bcb | 6950 | /* RGB formats are common across chipsets */ |
b5626747 | 6951 | break; |
04b3924d VS |
6952 | case DRM_FORMAT_YUYV: |
6953 | case DRM_FORMAT_UYVY: | |
6954 | case DRM_FORMAT_YVYU: | |
6955 | case DRM_FORMAT_VYUY: | |
57cd6508 CW |
6956 | break; |
6957 | default: | |
aca25848 ED |
6958 | DRM_DEBUG_KMS("unsupported pixel format %u\n", |
6959 | mode_cmd->pixel_format); | |
57cd6508 CW |
6960 | return -EINVAL; |
6961 | } | |
6962 | ||
79e53945 JB |
6963 | ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); |
6964 | if (ret) { | |
6965 | DRM_ERROR("framebuffer init failed %d\n", ret); | |
6966 | return ret; | |
6967 | } | |
6968 | ||
6969 | drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); | |
79e53945 | 6970 | intel_fb->obj = obj; |
79e53945 JB |
6971 | return 0; |
6972 | } | |
6973 | ||
79e53945 JB |
6974 | static struct drm_framebuffer * |
6975 | intel_user_framebuffer_create(struct drm_device *dev, | |
6976 | struct drm_file *filp, | |
308e5bcb | 6977 | struct drm_mode_fb_cmd2 *mode_cmd) |
79e53945 | 6978 | { |
05394f39 | 6979 | struct drm_i915_gem_object *obj; |
79e53945 | 6980 | |
308e5bcb JB |
6981 | obj = to_intel_bo(drm_gem_object_lookup(dev, filp, |
6982 | mode_cmd->handles[0])); | |
c8725226 | 6983 | if (&obj->base == NULL) |
cce13ff7 | 6984 | return ERR_PTR(-ENOENT); |
79e53945 | 6985 | |
d2dff872 | 6986 | return intel_framebuffer_create(dev, mode_cmd, obj); |
79e53945 JB |
6987 | } |
6988 | ||
79e53945 | 6989 | static const struct drm_mode_config_funcs intel_mode_funcs = { |
79e53945 | 6990 | .fb_create = intel_user_framebuffer_create, |
eb1f8e4f | 6991 | .output_poll_changed = intel_fb_output_poll_changed, |
79e53945 JB |
6992 | }; |
6993 | ||
e70236a8 JB |
6994 | /* Set up chip specific display functions */ |
6995 | static void intel_init_display(struct drm_device *dev) | |
6996 | { | |
6997 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6998 | ||
6999 | /* We always want a DPMS function */ | |
f564048e | 7000 | if (HAS_PCH_SPLIT(dev)) { |
f2b115e6 | 7001 | dev_priv->display.dpms = ironlake_crtc_dpms; |
f564048e | 7002 | dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set; |
ee7b9f93 | 7003 | dev_priv->display.off = ironlake_crtc_off; |
17638cd6 | 7004 | dev_priv->display.update_plane = ironlake_update_plane; |
f564048e | 7005 | } else { |
e70236a8 | 7006 | dev_priv->display.dpms = i9xx_crtc_dpms; |
f564048e | 7007 | dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set; |
ee7b9f93 | 7008 | dev_priv->display.off = i9xx_crtc_off; |
17638cd6 | 7009 | dev_priv->display.update_plane = i9xx_update_plane; |
f564048e | 7010 | } |
e70236a8 | 7011 | |
e70236a8 | 7012 | /* Returns the core display clock speed */ |
25eb05fc JB |
7013 | if (IS_VALLEYVIEW(dev)) |
7014 | dev_priv->display.get_display_clock_speed = | |
7015 | valleyview_get_display_clock_speed; | |
7016 | else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev))) | |
e70236a8 JB |
7017 | dev_priv->display.get_display_clock_speed = |
7018 | i945_get_display_clock_speed; | |
7019 | else if (IS_I915G(dev)) | |
7020 | dev_priv->display.get_display_clock_speed = | |
7021 | i915_get_display_clock_speed; | |
f2b115e6 | 7022 | else if (IS_I945GM(dev) || IS_845G(dev) || IS_PINEVIEW_M(dev)) |
e70236a8 JB |
7023 | dev_priv->display.get_display_clock_speed = |
7024 | i9xx_misc_get_display_clock_speed; | |
7025 | else if (IS_I915GM(dev)) | |
7026 | dev_priv->display.get_display_clock_speed = | |
7027 | i915gm_get_display_clock_speed; | |
7028 | else if (IS_I865G(dev)) | |
7029 | dev_priv->display.get_display_clock_speed = | |
7030 | i865_get_display_clock_speed; | |
f0f8a9ce | 7031 | else if (IS_I85X(dev)) |
e70236a8 JB |
7032 | dev_priv->display.get_display_clock_speed = |
7033 | i855_get_display_clock_speed; | |
7034 | else /* 852, 830 */ | |
7035 | dev_priv->display.get_display_clock_speed = | |
7036 | i830_get_display_clock_speed; | |
7037 | ||
7f8a8569 | 7038 | if (HAS_PCH_SPLIT(dev)) { |
f00a3ddf | 7039 | if (IS_GEN5(dev)) { |
674cf967 | 7040 | dev_priv->display.fdi_link_train = ironlake_fdi_link_train; |
e0dac65e | 7041 | dev_priv->display.write_eld = ironlake_write_eld; |
1398261a | 7042 | } else if (IS_GEN6(dev)) { |
674cf967 | 7043 | dev_priv->display.fdi_link_train = gen6_fdi_link_train; |
e0dac65e | 7044 | dev_priv->display.write_eld = ironlake_write_eld; |
357555c0 JB |
7045 | } else if (IS_IVYBRIDGE(dev)) { |
7046 | /* FIXME: detect B0+ stepping and use auto training */ | |
7047 | dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train; | |
e0dac65e | 7048 | dev_priv->display.write_eld = ironlake_write_eld; |
c82e4d26 ED |
7049 | } else if (IS_HASWELL(dev)) { |
7050 | dev_priv->display.fdi_link_train = hsw_fdi_link_train; | |
4abb3c8c | 7051 | dev_priv->display.write_eld = ironlake_write_eld; |
7f8a8569 ZW |
7052 | } else |
7053 | dev_priv->display.update_wm = NULL; | |
6067aaea | 7054 | } else if (IS_G4X(dev)) { |
e0dac65e | 7055 | dev_priv->display.write_eld = g4x_write_eld; |
e70236a8 | 7056 | } |
8c9f3aaf JB |
7057 | |
7058 | /* Default just returns -ENODEV to indicate unsupported */ | |
7059 | dev_priv->display.queue_flip = intel_default_queue_flip; | |
7060 | ||
7061 | switch (INTEL_INFO(dev)->gen) { | |
7062 | case 2: | |
7063 | dev_priv->display.queue_flip = intel_gen2_queue_flip; | |
7064 | break; | |
7065 | ||
7066 | case 3: | |
7067 | dev_priv->display.queue_flip = intel_gen3_queue_flip; | |
7068 | break; | |
7069 | ||
7070 | case 4: | |
7071 | case 5: | |
7072 | dev_priv->display.queue_flip = intel_gen4_queue_flip; | |
7073 | break; | |
7074 | ||
7075 | case 6: | |
7076 | dev_priv->display.queue_flip = intel_gen6_queue_flip; | |
7077 | break; | |
7c9017e5 JB |
7078 | case 7: |
7079 | dev_priv->display.queue_flip = intel_gen7_queue_flip; | |
7080 | break; | |
8c9f3aaf | 7081 | } |
e70236a8 JB |
7082 | } |
7083 | ||
b690e96c JB |
7084 | /* |
7085 | * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend, | |
7086 | * resume, or other times. This quirk makes sure that's the case for | |
7087 | * affected systems. | |
7088 | */ | |
0206e353 | 7089 | static void quirk_pipea_force(struct drm_device *dev) |
b690e96c JB |
7090 | { |
7091 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7092 | ||
7093 | dev_priv->quirks |= QUIRK_PIPEA_FORCE; | |
bc0daf48 | 7094 | DRM_INFO("applying pipe a force quirk\n"); |
b690e96c JB |
7095 | } |
7096 | ||
435793df KP |
7097 | /* |
7098 | * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason | |
7099 | */ | |
7100 | static void quirk_ssc_force_disable(struct drm_device *dev) | |
7101 | { | |
7102 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7103 | dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE; | |
bc0daf48 | 7104 | DRM_INFO("applying lvds SSC disable quirk\n"); |
435793df KP |
7105 | } |
7106 | ||
4dca20ef | 7107 | /* |
5a15ab5b CE |
7108 | * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight |
7109 | * brightness value | |
4dca20ef CE |
7110 | */ |
7111 | static void quirk_invert_brightness(struct drm_device *dev) | |
7112 | { | |
7113 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7114 | dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS; | |
bc0daf48 | 7115 | DRM_INFO("applying inverted panel brightness quirk\n"); |
435793df KP |
7116 | } |
7117 | ||
b690e96c JB |
7118 | struct intel_quirk { |
7119 | int device; | |
7120 | int subsystem_vendor; | |
7121 | int subsystem_device; | |
7122 | void (*hook)(struct drm_device *dev); | |
7123 | }; | |
7124 | ||
c43b5634 | 7125 | static struct intel_quirk intel_quirks[] = { |
b690e96c | 7126 | /* HP Mini needs pipe A force quirk (LP: #322104) */ |
0206e353 | 7127 | { 0x27ae, 0x103c, 0x361a, quirk_pipea_force }, |
b690e96c JB |
7128 | |
7129 | /* Thinkpad R31 needs pipe A force quirk */ | |
7130 | { 0x3577, 0x1014, 0x0505, quirk_pipea_force }, | |
7131 | /* Toshiba Protege R-205, S-209 needs pipe A force quirk */ | |
7132 | { 0x2592, 0x1179, 0x0001, quirk_pipea_force }, | |
7133 | ||
7134 | /* ThinkPad X30 needs pipe A force quirk (LP: #304614) */ | |
7135 | { 0x3577, 0x1014, 0x0513, quirk_pipea_force }, | |
7136 | /* ThinkPad X40 needs pipe A force quirk */ | |
7137 | ||
7138 | /* ThinkPad T60 needs pipe A force quirk (bug #16494) */ | |
7139 | { 0x2782, 0x17aa, 0x201a, quirk_pipea_force }, | |
7140 | ||
7141 | /* 855 & before need to leave pipe A & dpll A up */ | |
7142 | { 0x3582, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, | |
7143 | { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, | |
435793df KP |
7144 | |
7145 | /* Lenovo U160 cannot use SSC on LVDS */ | |
7146 | { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable }, | |
070d329a MAS |
7147 | |
7148 | /* Sony Vaio Y cannot use SSC on LVDS */ | |
7149 | { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable }, | |
5a15ab5b CE |
7150 | |
7151 | /* Acer Aspire 5734Z must invert backlight brightness */ | |
7152 | { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness }, | |
b690e96c JB |
7153 | }; |
7154 | ||
7155 | static void intel_init_quirks(struct drm_device *dev) | |
7156 | { | |
7157 | struct pci_dev *d = dev->pdev; | |
7158 | int i; | |
7159 | ||
7160 | for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { | |
7161 | struct intel_quirk *q = &intel_quirks[i]; | |
7162 | ||
7163 | if (d->device == q->device && | |
7164 | (d->subsystem_vendor == q->subsystem_vendor || | |
7165 | q->subsystem_vendor == PCI_ANY_ID) && | |
7166 | (d->subsystem_device == q->subsystem_device || | |
7167 | q->subsystem_device == PCI_ANY_ID)) | |
7168 | q->hook(dev); | |
7169 | } | |
7170 | } | |
7171 | ||
9cce37f4 JB |
7172 | /* Disable the VGA plane that we never use */ |
7173 | static void i915_disable_vga(struct drm_device *dev) | |
7174 | { | |
7175 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7176 | u8 sr1; | |
7177 | u32 vga_reg; | |
7178 | ||
7179 | if (HAS_PCH_SPLIT(dev)) | |
7180 | vga_reg = CPU_VGACNTRL; | |
7181 | else | |
7182 | vga_reg = VGACNTRL; | |
7183 | ||
7184 | vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO); | |
3fdcf431 | 7185 | outb(SR01, VGA_SR_INDEX); |
9cce37f4 JB |
7186 | sr1 = inb(VGA_SR_DATA); |
7187 | outb(sr1 | 1<<5, VGA_SR_DATA); | |
7188 | vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); | |
7189 | udelay(300); | |
7190 | ||
7191 | I915_WRITE(vga_reg, VGA_DISP_DISABLE); | |
7192 | POSTING_READ(vga_reg); | |
7193 | } | |
7194 | ||
f82cfb6b JB |
7195 | static void ivb_pch_pwm_override(struct drm_device *dev) |
7196 | { | |
7197 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7198 | ||
7199 | /* | |
7200 | * IVB has CPU eDP backlight regs too, set things up to let the | |
7201 | * PCH regs control the backlight | |
7202 | */ | |
7cf41601 | 7203 | I915_WRITE(BLC_PWM_CPU_CTL2, BLM_PWM_ENABLE); |
f82cfb6b | 7204 | I915_WRITE(BLC_PWM_CPU_CTL, 0); |
7cf41601 | 7205 | I915_WRITE(BLC_PWM_PCH_CTL1, BLM_PCH_PWM_ENABLE | BLM_PCH_OVERRIDE_ENABLE); |
f82cfb6b JB |
7206 | } |
7207 | ||
f817586c DV |
7208 | void intel_modeset_init_hw(struct drm_device *dev) |
7209 | { | |
a8f78b58 ED |
7210 | intel_prepare_ddi(dev); |
7211 | ||
f817586c DV |
7212 | intel_init_clock_gating(dev); |
7213 | ||
79f5b2c7 | 7214 | mutex_lock(&dev->struct_mutex); |
8090c6b9 | 7215 | intel_enable_gt_powersave(dev); |
79f5b2c7 | 7216 | mutex_unlock(&dev->struct_mutex); |
f82cfb6b JB |
7217 | |
7218 | if (IS_IVYBRIDGE(dev)) | |
7219 | ivb_pch_pwm_override(dev); | |
f817586c DV |
7220 | } |
7221 | ||
79e53945 JB |
7222 | void intel_modeset_init(struct drm_device *dev) |
7223 | { | |
652c393a | 7224 | struct drm_i915_private *dev_priv = dev->dev_private; |
b840d907 | 7225 | int i, ret; |
79e53945 JB |
7226 | |
7227 | drm_mode_config_init(dev); | |
7228 | ||
7229 | dev->mode_config.min_width = 0; | |
7230 | dev->mode_config.min_height = 0; | |
7231 | ||
019d96cb DA |
7232 | dev->mode_config.preferred_depth = 24; |
7233 | dev->mode_config.prefer_shadow = 1; | |
7234 | ||
e6ecefaa | 7235 | dev->mode_config.funcs = &intel_mode_funcs; |
79e53945 | 7236 | |
b690e96c JB |
7237 | intel_init_quirks(dev); |
7238 | ||
1fa61106 ED |
7239 | intel_init_pm(dev); |
7240 | ||
e70236a8 JB |
7241 | intel_init_display(dev); |
7242 | ||
a6c45cf0 CW |
7243 | if (IS_GEN2(dev)) { |
7244 | dev->mode_config.max_width = 2048; | |
7245 | dev->mode_config.max_height = 2048; | |
7246 | } else if (IS_GEN3(dev)) { | |
5e4d6fa7 KP |
7247 | dev->mode_config.max_width = 4096; |
7248 | dev->mode_config.max_height = 4096; | |
79e53945 | 7249 | } else { |
a6c45cf0 CW |
7250 | dev->mode_config.max_width = 8192; |
7251 | dev->mode_config.max_height = 8192; | |
79e53945 | 7252 | } |
dd2757f8 | 7253 | dev->mode_config.fb_base = dev_priv->mm.gtt_base_addr; |
79e53945 | 7254 | |
28c97730 | 7255 | DRM_DEBUG_KMS("%d display pipe%s available.\n", |
a3524f1b | 7256 | dev_priv->num_pipe, dev_priv->num_pipe > 1 ? "s" : ""); |
79e53945 | 7257 | |
a3524f1b | 7258 | for (i = 0; i < dev_priv->num_pipe; i++) { |
79e53945 | 7259 | intel_crtc_init(dev, i); |
00c2064b JB |
7260 | ret = intel_plane_init(dev, i); |
7261 | if (ret) | |
7262 | DRM_DEBUG_KMS("plane %d init failed: %d\n", i, ret); | |
79e53945 JB |
7263 | } |
7264 | ||
ee7b9f93 JB |
7265 | intel_pch_pll_init(dev); |
7266 | ||
9cce37f4 JB |
7267 | /* Just disable it once at startup */ |
7268 | i915_disable_vga(dev); | |
79e53945 | 7269 | intel_setup_outputs(dev); |
652c393a | 7270 | |
652c393a JB |
7271 | INIT_WORK(&dev_priv->idle_work, intel_idle_update); |
7272 | setup_timer(&dev_priv->idle_timer, intel_gpu_idle_timer, | |
7273 | (unsigned long)dev); | |
2c7111db CW |
7274 | } |
7275 | ||
7276 | void intel_modeset_gem_init(struct drm_device *dev) | |
7277 | { | |
1833b134 | 7278 | intel_modeset_init_hw(dev); |
02e792fb DV |
7279 | |
7280 | intel_setup_overlay(dev); | |
79e53945 JB |
7281 | } |
7282 | ||
7283 | void intel_modeset_cleanup(struct drm_device *dev) | |
7284 | { | |
652c393a JB |
7285 | struct drm_i915_private *dev_priv = dev->dev_private; |
7286 | struct drm_crtc *crtc; | |
7287 | struct intel_crtc *intel_crtc; | |
7288 | ||
f87ea761 | 7289 | drm_kms_helper_poll_fini(dev); |
652c393a JB |
7290 | mutex_lock(&dev->struct_mutex); |
7291 | ||
723bfd70 JB |
7292 | intel_unregister_dsm_handler(); |
7293 | ||
7294 | ||
652c393a JB |
7295 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
7296 | /* Skip inactive CRTCs */ | |
7297 | if (!crtc->fb) | |
7298 | continue; | |
7299 | ||
7300 | intel_crtc = to_intel_crtc(crtc); | |
3dec0095 | 7301 | intel_increase_pllclock(crtc); |
652c393a JB |
7302 | } |
7303 | ||
973d04f9 | 7304 | intel_disable_fbc(dev); |
e70236a8 | 7305 | |
8090c6b9 | 7306 | intel_disable_gt_powersave(dev); |
0cdab21f | 7307 | |
930ebb46 DV |
7308 | ironlake_teardown_rc6(dev); |
7309 | ||
57f350b6 JB |
7310 | if (IS_VALLEYVIEW(dev)) |
7311 | vlv_init_dpio(dev); | |
7312 | ||
69341a5e KH |
7313 | mutex_unlock(&dev->struct_mutex); |
7314 | ||
6c0d9350 DV |
7315 | /* Disable the irq before mode object teardown, for the irq might |
7316 | * enqueue unpin/hotplug work. */ | |
7317 | drm_irq_uninstall(dev); | |
7318 | cancel_work_sync(&dev_priv->hotplug_work); | |
6fdd4d98 | 7319 | cancel_work_sync(&dev_priv->rps_work); |
6c0d9350 | 7320 | |
1630fe75 CW |
7321 | /* flush any delayed tasks or pending work */ |
7322 | flush_scheduled_work(); | |
7323 | ||
3dec0095 DV |
7324 | /* Shut off idle work before the crtcs get freed. */ |
7325 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
7326 | intel_crtc = to_intel_crtc(crtc); | |
7327 | del_timer_sync(&intel_crtc->idle_timer); | |
7328 | } | |
7329 | del_timer_sync(&dev_priv->idle_timer); | |
7330 | cancel_work_sync(&dev_priv->idle_work); | |
7331 | ||
79e53945 JB |
7332 | drm_mode_config_cleanup(dev); |
7333 | } | |
7334 | ||
f1c79df3 ZW |
7335 | /* |
7336 | * Return which encoder is currently attached for connector. | |
7337 | */ | |
df0e9248 | 7338 | struct drm_encoder *intel_best_encoder(struct drm_connector *connector) |
79e53945 | 7339 | { |
df0e9248 CW |
7340 | return &intel_attached_encoder(connector)->base; |
7341 | } | |
f1c79df3 | 7342 | |
df0e9248 CW |
7343 | void intel_connector_attach_encoder(struct intel_connector *connector, |
7344 | struct intel_encoder *encoder) | |
7345 | { | |
7346 | connector->encoder = encoder; | |
7347 | drm_mode_connector_attach_encoder(&connector->base, | |
7348 | &encoder->base); | |
79e53945 | 7349 | } |
28d52043 DA |
7350 | |
7351 | /* | |
7352 | * set vga decode state - true == enable VGA decode | |
7353 | */ | |
7354 | int intel_modeset_vga_set_state(struct drm_device *dev, bool state) | |
7355 | { | |
7356 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7357 | u16 gmch_ctrl; | |
7358 | ||
7359 | pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl); | |
7360 | if (state) | |
7361 | gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE; | |
7362 | else | |
7363 | gmch_ctrl |= INTEL_GMCH_VGA_DISABLE; | |
7364 | pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl); | |
7365 | return 0; | |
7366 | } | |
c4a1d9e4 CW |
7367 | |
7368 | #ifdef CONFIG_DEBUG_FS | |
7369 | #include <linux/seq_file.h> | |
7370 | ||
7371 | struct intel_display_error_state { | |
7372 | struct intel_cursor_error_state { | |
7373 | u32 control; | |
7374 | u32 position; | |
7375 | u32 base; | |
7376 | u32 size; | |
7377 | } cursor[2]; | |
7378 | ||
7379 | struct intel_pipe_error_state { | |
7380 | u32 conf; | |
7381 | u32 source; | |
7382 | ||
7383 | u32 htotal; | |
7384 | u32 hblank; | |
7385 | u32 hsync; | |
7386 | u32 vtotal; | |
7387 | u32 vblank; | |
7388 | u32 vsync; | |
7389 | } pipe[2]; | |
7390 | ||
7391 | struct intel_plane_error_state { | |
7392 | u32 control; | |
7393 | u32 stride; | |
7394 | u32 size; | |
7395 | u32 pos; | |
7396 | u32 addr; | |
7397 | u32 surface; | |
7398 | u32 tile_offset; | |
7399 | } plane[2]; | |
7400 | }; | |
7401 | ||
7402 | struct intel_display_error_state * | |
7403 | intel_display_capture_error_state(struct drm_device *dev) | |
7404 | { | |
0206e353 | 7405 | drm_i915_private_t *dev_priv = dev->dev_private; |
c4a1d9e4 CW |
7406 | struct intel_display_error_state *error; |
7407 | int i; | |
7408 | ||
7409 | error = kmalloc(sizeof(*error), GFP_ATOMIC); | |
7410 | if (error == NULL) | |
7411 | return NULL; | |
7412 | ||
7413 | for (i = 0; i < 2; i++) { | |
7414 | error->cursor[i].control = I915_READ(CURCNTR(i)); | |
7415 | error->cursor[i].position = I915_READ(CURPOS(i)); | |
7416 | error->cursor[i].base = I915_READ(CURBASE(i)); | |
7417 | ||
7418 | error->plane[i].control = I915_READ(DSPCNTR(i)); | |
7419 | error->plane[i].stride = I915_READ(DSPSTRIDE(i)); | |
7420 | error->plane[i].size = I915_READ(DSPSIZE(i)); | |
0206e353 | 7421 | error->plane[i].pos = I915_READ(DSPPOS(i)); |
c4a1d9e4 CW |
7422 | error->plane[i].addr = I915_READ(DSPADDR(i)); |
7423 | if (INTEL_INFO(dev)->gen >= 4) { | |
7424 | error->plane[i].surface = I915_READ(DSPSURF(i)); | |
7425 | error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i)); | |
7426 | } | |
7427 | ||
7428 | error->pipe[i].conf = I915_READ(PIPECONF(i)); | |
7429 | error->pipe[i].source = I915_READ(PIPESRC(i)); | |
7430 | error->pipe[i].htotal = I915_READ(HTOTAL(i)); | |
7431 | error->pipe[i].hblank = I915_READ(HBLANK(i)); | |
7432 | error->pipe[i].hsync = I915_READ(HSYNC(i)); | |
7433 | error->pipe[i].vtotal = I915_READ(VTOTAL(i)); | |
7434 | error->pipe[i].vblank = I915_READ(VBLANK(i)); | |
7435 | error->pipe[i].vsync = I915_READ(VSYNC(i)); | |
7436 | } | |
7437 | ||
7438 | return error; | |
7439 | } | |
7440 | ||
7441 | void | |
7442 | intel_display_print_error_state(struct seq_file *m, | |
7443 | struct drm_device *dev, | |
7444 | struct intel_display_error_state *error) | |
7445 | { | |
7446 | int i; | |
7447 | ||
7448 | for (i = 0; i < 2; i++) { | |
7449 | seq_printf(m, "Pipe [%d]:\n", i); | |
7450 | seq_printf(m, " CONF: %08x\n", error->pipe[i].conf); | |
7451 | seq_printf(m, " SRC: %08x\n", error->pipe[i].source); | |
7452 | seq_printf(m, " HTOTAL: %08x\n", error->pipe[i].htotal); | |
7453 | seq_printf(m, " HBLANK: %08x\n", error->pipe[i].hblank); | |
7454 | seq_printf(m, " HSYNC: %08x\n", error->pipe[i].hsync); | |
7455 | seq_printf(m, " VTOTAL: %08x\n", error->pipe[i].vtotal); | |
7456 | seq_printf(m, " VBLANK: %08x\n", error->pipe[i].vblank); | |
7457 | seq_printf(m, " VSYNC: %08x\n", error->pipe[i].vsync); | |
7458 | ||
7459 | seq_printf(m, "Plane [%d]:\n", i); | |
7460 | seq_printf(m, " CNTR: %08x\n", error->plane[i].control); | |
7461 | seq_printf(m, " STRIDE: %08x\n", error->plane[i].stride); | |
7462 | seq_printf(m, " SIZE: %08x\n", error->plane[i].size); | |
7463 | seq_printf(m, " POS: %08x\n", error->plane[i].pos); | |
7464 | seq_printf(m, " ADDR: %08x\n", error->plane[i].addr); | |
7465 | if (INTEL_INFO(dev)->gen >= 4) { | |
7466 | seq_printf(m, " SURF: %08x\n", error->plane[i].surface); | |
7467 | seq_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset); | |
7468 | } | |
7469 | ||
7470 | seq_printf(m, "Cursor [%d]:\n", i); | |
7471 | seq_printf(m, " CNTR: %08x\n", error->cursor[i].control); | |
7472 | seq_printf(m, " POS: %08x\n", error->cursor[i].position); | |
7473 | seq_printf(m, " BASE: %08x\n", error->cursor[i].base); | |
7474 | } | |
7475 | } | |
7476 | #endif |