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79e53945 JB |
1 | /* |
2 | * Copyright © 2006-2007 Intel Corporation | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice (including the next | |
12 | * paragraph) shall be included in all copies or substantial portions of the | |
13 | * Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
21 | * DEALINGS IN THE SOFTWARE. | |
22 | * | |
23 | * Authors: | |
24 | * Eric Anholt <eric@anholt.net> | |
25 | */ | |
26 | ||
27 | #include <linux/i2c.h> | |
7662c8bd | 28 | #include <linux/kernel.h> |
79e53945 JB |
29 | #include "drmP.h" |
30 | #include "intel_drv.h" | |
31 | #include "i915_drm.h" | |
32 | #include "i915_drv.h" | |
a4fc5ed6 | 33 | #include "intel_dp.h" |
79e53945 JB |
34 | |
35 | #include "drm_crtc_helper.h" | |
36 | ||
37 | bool intel_pipe_has_type (struct drm_crtc *crtc, int type); | |
7662c8bd | 38 | static void intel_update_watermarks(struct drm_device *dev); |
79e53945 JB |
39 | |
40 | typedef struct { | |
41 | /* given values */ | |
42 | int n; | |
43 | int m1, m2; | |
44 | int p1, p2; | |
45 | /* derived values */ | |
46 | int dot; | |
47 | int vco; | |
48 | int m; | |
49 | int p; | |
50 | } intel_clock_t; | |
51 | ||
52 | typedef struct { | |
53 | int min, max; | |
54 | } intel_range_t; | |
55 | ||
56 | typedef struct { | |
57 | int dot_limit; | |
58 | int p2_slow, p2_fast; | |
59 | } intel_p2_t; | |
60 | ||
61 | #define INTEL_P2_NUM 2 | |
d4906093 ML |
62 | typedef struct intel_limit intel_limit_t; |
63 | struct intel_limit { | |
79e53945 JB |
64 | intel_range_t dot, vco, n, m, m1, m2, p, p1; |
65 | intel_p2_t p2; | |
d4906093 ML |
66 | bool (* find_pll)(const intel_limit_t *, struct drm_crtc *, |
67 | int, int, intel_clock_t *); | |
68 | }; | |
79e53945 JB |
69 | |
70 | #define I8XX_DOT_MIN 25000 | |
71 | #define I8XX_DOT_MAX 350000 | |
72 | #define I8XX_VCO_MIN 930000 | |
73 | #define I8XX_VCO_MAX 1400000 | |
74 | #define I8XX_N_MIN 3 | |
75 | #define I8XX_N_MAX 16 | |
76 | #define I8XX_M_MIN 96 | |
77 | #define I8XX_M_MAX 140 | |
78 | #define I8XX_M1_MIN 18 | |
79 | #define I8XX_M1_MAX 26 | |
80 | #define I8XX_M2_MIN 6 | |
81 | #define I8XX_M2_MAX 16 | |
82 | #define I8XX_P_MIN 4 | |
83 | #define I8XX_P_MAX 128 | |
84 | #define I8XX_P1_MIN 2 | |
85 | #define I8XX_P1_MAX 33 | |
86 | #define I8XX_P1_LVDS_MIN 1 | |
87 | #define I8XX_P1_LVDS_MAX 6 | |
88 | #define I8XX_P2_SLOW 4 | |
89 | #define I8XX_P2_FAST 2 | |
90 | #define I8XX_P2_LVDS_SLOW 14 | |
91 | #define I8XX_P2_LVDS_FAST 14 /* No fast option */ | |
92 | #define I8XX_P2_SLOW_LIMIT 165000 | |
93 | ||
94 | #define I9XX_DOT_MIN 20000 | |
95 | #define I9XX_DOT_MAX 400000 | |
96 | #define I9XX_VCO_MIN 1400000 | |
97 | #define I9XX_VCO_MAX 2800000 | |
2177832f SL |
98 | #define IGD_VCO_MIN 1700000 |
99 | #define IGD_VCO_MAX 3500000 | |
f3cade5c KH |
100 | #define I9XX_N_MIN 1 |
101 | #define I9XX_N_MAX 6 | |
2177832f SL |
102 | /* IGD's Ncounter is a ring counter */ |
103 | #define IGD_N_MIN 3 | |
104 | #define IGD_N_MAX 6 | |
79e53945 JB |
105 | #define I9XX_M_MIN 70 |
106 | #define I9XX_M_MAX 120 | |
2177832f SL |
107 | #define IGD_M_MIN 2 |
108 | #define IGD_M_MAX 256 | |
79e53945 | 109 | #define I9XX_M1_MIN 10 |
f3cade5c | 110 | #define I9XX_M1_MAX 22 |
79e53945 JB |
111 | #define I9XX_M2_MIN 5 |
112 | #define I9XX_M2_MAX 9 | |
2177832f SL |
113 | /* IGD M1 is reserved, and must be 0 */ |
114 | #define IGD_M1_MIN 0 | |
115 | #define IGD_M1_MAX 0 | |
116 | #define IGD_M2_MIN 0 | |
117 | #define IGD_M2_MAX 254 | |
79e53945 JB |
118 | #define I9XX_P_SDVO_DAC_MIN 5 |
119 | #define I9XX_P_SDVO_DAC_MAX 80 | |
120 | #define I9XX_P_LVDS_MIN 7 | |
121 | #define I9XX_P_LVDS_MAX 98 | |
2177832f SL |
122 | #define IGD_P_LVDS_MIN 7 |
123 | #define IGD_P_LVDS_MAX 112 | |
79e53945 JB |
124 | #define I9XX_P1_MIN 1 |
125 | #define I9XX_P1_MAX 8 | |
126 | #define I9XX_P2_SDVO_DAC_SLOW 10 | |
127 | #define I9XX_P2_SDVO_DAC_FAST 5 | |
128 | #define I9XX_P2_SDVO_DAC_SLOW_LIMIT 200000 | |
129 | #define I9XX_P2_LVDS_SLOW 14 | |
130 | #define I9XX_P2_LVDS_FAST 7 | |
131 | #define I9XX_P2_LVDS_SLOW_LIMIT 112000 | |
132 | ||
044c7c41 ML |
133 | /*The parameter is for SDVO on G4x platform*/ |
134 | #define G4X_DOT_SDVO_MIN 25000 | |
135 | #define G4X_DOT_SDVO_MAX 270000 | |
136 | #define G4X_VCO_MIN 1750000 | |
137 | #define G4X_VCO_MAX 3500000 | |
138 | #define G4X_N_SDVO_MIN 1 | |
139 | #define G4X_N_SDVO_MAX 4 | |
140 | #define G4X_M_SDVO_MIN 104 | |
141 | #define G4X_M_SDVO_MAX 138 | |
142 | #define G4X_M1_SDVO_MIN 17 | |
143 | #define G4X_M1_SDVO_MAX 23 | |
144 | #define G4X_M2_SDVO_MIN 5 | |
145 | #define G4X_M2_SDVO_MAX 11 | |
146 | #define G4X_P_SDVO_MIN 10 | |
147 | #define G4X_P_SDVO_MAX 30 | |
148 | #define G4X_P1_SDVO_MIN 1 | |
149 | #define G4X_P1_SDVO_MAX 3 | |
150 | #define G4X_P2_SDVO_SLOW 10 | |
151 | #define G4X_P2_SDVO_FAST 10 | |
152 | #define G4X_P2_SDVO_LIMIT 270000 | |
153 | ||
154 | /*The parameter is for HDMI_DAC on G4x platform*/ | |
155 | #define G4X_DOT_HDMI_DAC_MIN 22000 | |
156 | #define G4X_DOT_HDMI_DAC_MAX 400000 | |
157 | #define G4X_N_HDMI_DAC_MIN 1 | |
158 | #define G4X_N_HDMI_DAC_MAX 4 | |
159 | #define G4X_M_HDMI_DAC_MIN 104 | |
160 | #define G4X_M_HDMI_DAC_MAX 138 | |
161 | #define G4X_M1_HDMI_DAC_MIN 16 | |
162 | #define G4X_M1_HDMI_DAC_MAX 23 | |
163 | #define G4X_M2_HDMI_DAC_MIN 5 | |
164 | #define G4X_M2_HDMI_DAC_MAX 11 | |
165 | #define G4X_P_HDMI_DAC_MIN 5 | |
166 | #define G4X_P_HDMI_DAC_MAX 80 | |
167 | #define G4X_P1_HDMI_DAC_MIN 1 | |
168 | #define G4X_P1_HDMI_DAC_MAX 8 | |
169 | #define G4X_P2_HDMI_DAC_SLOW 10 | |
170 | #define G4X_P2_HDMI_DAC_FAST 5 | |
171 | #define G4X_P2_HDMI_DAC_LIMIT 165000 | |
172 | ||
173 | /*The parameter is for SINGLE_CHANNEL_LVDS on G4x platform*/ | |
174 | #define G4X_DOT_SINGLE_CHANNEL_LVDS_MIN 20000 | |
175 | #define G4X_DOT_SINGLE_CHANNEL_LVDS_MAX 115000 | |
176 | #define G4X_N_SINGLE_CHANNEL_LVDS_MIN 1 | |
177 | #define G4X_N_SINGLE_CHANNEL_LVDS_MAX 3 | |
178 | #define G4X_M_SINGLE_CHANNEL_LVDS_MIN 104 | |
179 | #define G4X_M_SINGLE_CHANNEL_LVDS_MAX 138 | |
180 | #define G4X_M1_SINGLE_CHANNEL_LVDS_MIN 17 | |
181 | #define G4X_M1_SINGLE_CHANNEL_LVDS_MAX 23 | |
182 | #define G4X_M2_SINGLE_CHANNEL_LVDS_MIN 5 | |
183 | #define G4X_M2_SINGLE_CHANNEL_LVDS_MAX 11 | |
184 | #define G4X_P_SINGLE_CHANNEL_LVDS_MIN 28 | |
185 | #define G4X_P_SINGLE_CHANNEL_LVDS_MAX 112 | |
186 | #define G4X_P1_SINGLE_CHANNEL_LVDS_MIN 2 | |
187 | #define G4X_P1_SINGLE_CHANNEL_LVDS_MAX 8 | |
188 | #define G4X_P2_SINGLE_CHANNEL_LVDS_SLOW 14 | |
189 | #define G4X_P2_SINGLE_CHANNEL_LVDS_FAST 14 | |
190 | #define G4X_P2_SINGLE_CHANNEL_LVDS_LIMIT 0 | |
191 | ||
192 | /*The parameter is for DUAL_CHANNEL_LVDS on G4x platform*/ | |
193 | #define G4X_DOT_DUAL_CHANNEL_LVDS_MIN 80000 | |
194 | #define G4X_DOT_DUAL_CHANNEL_LVDS_MAX 224000 | |
195 | #define G4X_N_DUAL_CHANNEL_LVDS_MIN 1 | |
196 | #define G4X_N_DUAL_CHANNEL_LVDS_MAX 3 | |
197 | #define G4X_M_DUAL_CHANNEL_LVDS_MIN 104 | |
198 | #define G4X_M_DUAL_CHANNEL_LVDS_MAX 138 | |
199 | #define G4X_M1_DUAL_CHANNEL_LVDS_MIN 17 | |
200 | #define G4X_M1_DUAL_CHANNEL_LVDS_MAX 23 | |
201 | #define G4X_M2_DUAL_CHANNEL_LVDS_MIN 5 | |
202 | #define G4X_M2_DUAL_CHANNEL_LVDS_MAX 11 | |
203 | #define G4X_P_DUAL_CHANNEL_LVDS_MIN 14 | |
204 | #define G4X_P_DUAL_CHANNEL_LVDS_MAX 42 | |
205 | #define G4X_P1_DUAL_CHANNEL_LVDS_MIN 2 | |
206 | #define G4X_P1_DUAL_CHANNEL_LVDS_MAX 6 | |
207 | #define G4X_P2_DUAL_CHANNEL_LVDS_SLOW 7 | |
208 | #define G4X_P2_DUAL_CHANNEL_LVDS_FAST 7 | |
209 | #define G4X_P2_DUAL_CHANNEL_LVDS_LIMIT 0 | |
210 | ||
a4fc5ed6 KP |
211 | /*The parameter is for DISPLAY PORT on G4x platform*/ |
212 | #define G4X_DOT_DISPLAY_PORT_MIN 161670 | |
213 | #define G4X_DOT_DISPLAY_PORT_MAX 227000 | |
214 | #define G4X_N_DISPLAY_PORT_MIN 1 | |
215 | #define G4X_N_DISPLAY_PORT_MAX 2 | |
216 | #define G4X_M_DISPLAY_PORT_MIN 97 | |
217 | #define G4X_M_DISPLAY_PORT_MAX 108 | |
218 | #define G4X_M1_DISPLAY_PORT_MIN 0x10 | |
219 | #define G4X_M1_DISPLAY_PORT_MAX 0x12 | |
220 | #define G4X_M2_DISPLAY_PORT_MIN 0x05 | |
221 | #define G4X_M2_DISPLAY_PORT_MAX 0x06 | |
222 | #define G4X_P_DISPLAY_PORT_MIN 10 | |
223 | #define G4X_P_DISPLAY_PORT_MAX 20 | |
224 | #define G4X_P1_DISPLAY_PORT_MIN 1 | |
225 | #define G4X_P1_DISPLAY_PORT_MAX 2 | |
226 | #define G4X_P2_DISPLAY_PORT_SLOW 10 | |
227 | #define G4X_P2_DISPLAY_PORT_FAST 10 | |
228 | #define G4X_P2_DISPLAY_PORT_LIMIT 0 | |
229 | ||
2c07245f ZW |
230 | /* IGDNG */ |
231 | /* as we calculate clock using (register_value + 2) for | |
232 | N/M1/M2, so here the range value for them is (actual_value-2). | |
233 | */ | |
234 | #define IGDNG_DOT_MIN 25000 | |
235 | #define IGDNG_DOT_MAX 350000 | |
236 | #define IGDNG_VCO_MIN 1760000 | |
237 | #define IGDNG_VCO_MAX 3510000 | |
238 | #define IGDNG_N_MIN 1 | |
239 | #define IGDNG_N_MAX 5 | |
240 | #define IGDNG_M_MIN 79 | |
241 | #define IGDNG_M_MAX 118 | |
242 | #define IGDNG_M1_MIN 12 | |
243 | #define IGDNG_M1_MAX 23 | |
244 | #define IGDNG_M2_MIN 5 | |
245 | #define IGDNG_M2_MAX 9 | |
246 | #define IGDNG_P_SDVO_DAC_MIN 5 | |
247 | #define IGDNG_P_SDVO_DAC_MAX 80 | |
248 | #define IGDNG_P_LVDS_MIN 28 | |
249 | #define IGDNG_P_LVDS_MAX 112 | |
250 | #define IGDNG_P1_MIN 1 | |
251 | #define IGDNG_P1_MAX 8 | |
252 | #define IGDNG_P2_SDVO_DAC_SLOW 10 | |
253 | #define IGDNG_P2_SDVO_DAC_FAST 5 | |
254 | #define IGDNG_P2_LVDS_SLOW 14 /* single channel */ | |
255 | #define IGDNG_P2_LVDS_FAST 7 /* double channel */ | |
256 | #define IGDNG_P2_DOT_LIMIT 225000 /* 225Mhz */ | |
257 | ||
d4906093 ML |
258 | static bool |
259 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
260 | int target, int refclk, intel_clock_t *best_clock); | |
261 | static bool | |
262 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
263 | int target, int refclk, intel_clock_t *best_clock); | |
2c07245f ZW |
264 | static bool |
265 | intel_igdng_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
266 | int target, int refclk, intel_clock_t *best_clock); | |
79e53945 | 267 | |
a4fc5ed6 KP |
268 | static bool |
269 | intel_find_pll_g4x_dp(const intel_limit_t *, struct drm_crtc *crtc, | |
270 | int target, int refclk, intel_clock_t *best_clock); | |
271 | ||
e4b36699 | 272 | static const intel_limit_t intel_limits_i8xx_dvo = { |
79e53945 JB |
273 | .dot = { .min = I8XX_DOT_MIN, .max = I8XX_DOT_MAX }, |
274 | .vco = { .min = I8XX_VCO_MIN, .max = I8XX_VCO_MAX }, | |
275 | .n = { .min = I8XX_N_MIN, .max = I8XX_N_MAX }, | |
276 | .m = { .min = I8XX_M_MIN, .max = I8XX_M_MAX }, | |
277 | .m1 = { .min = I8XX_M1_MIN, .max = I8XX_M1_MAX }, | |
278 | .m2 = { .min = I8XX_M2_MIN, .max = I8XX_M2_MAX }, | |
279 | .p = { .min = I8XX_P_MIN, .max = I8XX_P_MAX }, | |
280 | .p1 = { .min = I8XX_P1_MIN, .max = I8XX_P1_MAX }, | |
281 | .p2 = { .dot_limit = I8XX_P2_SLOW_LIMIT, | |
282 | .p2_slow = I8XX_P2_SLOW, .p2_fast = I8XX_P2_FAST }, | |
d4906093 | 283 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
284 | }; |
285 | ||
286 | static const intel_limit_t intel_limits_i8xx_lvds = { | |
79e53945 JB |
287 | .dot = { .min = I8XX_DOT_MIN, .max = I8XX_DOT_MAX }, |
288 | .vco = { .min = I8XX_VCO_MIN, .max = I8XX_VCO_MAX }, | |
289 | .n = { .min = I8XX_N_MIN, .max = I8XX_N_MAX }, | |
290 | .m = { .min = I8XX_M_MIN, .max = I8XX_M_MAX }, | |
291 | .m1 = { .min = I8XX_M1_MIN, .max = I8XX_M1_MAX }, | |
292 | .m2 = { .min = I8XX_M2_MIN, .max = I8XX_M2_MAX }, | |
293 | .p = { .min = I8XX_P_MIN, .max = I8XX_P_MAX }, | |
294 | .p1 = { .min = I8XX_P1_LVDS_MIN, .max = I8XX_P1_LVDS_MAX }, | |
295 | .p2 = { .dot_limit = I8XX_P2_SLOW_LIMIT, | |
296 | .p2_slow = I8XX_P2_LVDS_SLOW, .p2_fast = I8XX_P2_LVDS_FAST }, | |
d4906093 | 297 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
298 | }; |
299 | ||
300 | static const intel_limit_t intel_limits_i9xx_sdvo = { | |
79e53945 JB |
301 | .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX }, |
302 | .vco = { .min = I9XX_VCO_MIN, .max = I9XX_VCO_MAX }, | |
303 | .n = { .min = I9XX_N_MIN, .max = I9XX_N_MAX }, | |
304 | .m = { .min = I9XX_M_MIN, .max = I9XX_M_MAX }, | |
305 | .m1 = { .min = I9XX_M1_MIN, .max = I9XX_M1_MAX }, | |
306 | .m2 = { .min = I9XX_M2_MIN, .max = I9XX_M2_MAX }, | |
307 | .p = { .min = I9XX_P_SDVO_DAC_MIN, .max = I9XX_P_SDVO_DAC_MAX }, | |
308 | .p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX }, | |
309 | .p2 = { .dot_limit = I9XX_P2_SDVO_DAC_SLOW_LIMIT, | |
310 | .p2_slow = I9XX_P2_SDVO_DAC_SLOW, .p2_fast = I9XX_P2_SDVO_DAC_FAST }, | |
d4906093 | 311 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
312 | }; |
313 | ||
314 | static const intel_limit_t intel_limits_i9xx_lvds = { | |
79e53945 JB |
315 | .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX }, |
316 | .vco = { .min = I9XX_VCO_MIN, .max = I9XX_VCO_MAX }, | |
317 | .n = { .min = I9XX_N_MIN, .max = I9XX_N_MAX }, | |
318 | .m = { .min = I9XX_M_MIN, .max = I9XX_M_MAX }, | |
319 | .m1 = { .min = I9XX_M1_MIN, .max = I9XX_M1_MAX }, | |
320 | .m2 = { .min = I9XX_M2_MIN, .max = I9XX_M2_MAX }, | |
321 | .p = { .min = I9XX_P_LVDS_MIN, .max = I9XX_P_LVDS_MAX }, | |
322 | .p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX }, | |
323 | /* The single-channel range is 25-112Mhz, and dual-channel | |
324 | * is 80-224Mhz. Prefer single channel as much as possible. | |
325 | */ | |
326 | .p2 = { .dot_limit = I9XX_P2_LVDS_SLOW_LIMIT, | |
327 | .p2_slow = I9XX_P2_LVDS_SLOW, .p2_fast = I9XX_P2_LVDS_FAST }, | |
d4906093 | 328 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
329 | }; |
330 | ||
044c7c41 | 331 | /* below parameter and function is for G4X Chipset Family*/ |
e4b36699 | 332 | static const intel_limit_t intel_limits_g4x_sdvo = { |
044c7c41 ML |
333 | .dot = { .min = G4X_DOT_SDVO_MIN, .max = G4X_DOT_SDVO_MAX }, |
334 | .vco = { .min = G4X_VCO_MIN, .max = G4X_VCO_MAX}, | |
335 | .n = { .min = G4X_N_SDVO_MIN, .max = G4X_N_SDVO_MAX }, | |
336 | .m = { .min = G4X_M_SDVO_MIN, .max = G4X_M_SDVO_MAX }, | |
337 | .m1 = { .min = G4X_M1_SDVO_MIN, .max = G4X_M1_SDVO_MAX }, | |
338 | .m2 = { .min = G4X_M2_SDVO_MIN, .max = G4X_M2_SDVO_MAX }, | |
339 | .p = { .min = G4X_P_SDVO_MIN, .max = G4X_P_SDVO_MAX }, | |
340 | .p1 = { .min = G4X_P1_SDVO_MIN, .max = G4X_P1_SDVO_MAX}, | |
341 | .p2 = { .dot_limit = G4X_P2_SDVO_LIMIT, | |
342 | .p2_slow = G4X_P2_SDVO_SLOW, | |
343 | .p2_fast = G4X_P2_SDVO_FAST | |
344 | }, | |
d4906093 | 345 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
346 | }; |
347 | ||
348 | static const intel_limit_t intel_limits_g4x_hdmi = { | |
044c7c41 ML |
349 | .dot = { .min = G4X_DOT_HDMI_DAC_MIN, .max = G4X_DOT_HDMI_DAC_MAX }, |
350 | .vco = { .min = G4X_VCO_MIN, .max = G4X_VCO_MAX}, | |
351 | .n = { .min = G4X_N_HDMI_DAC_MIN, .max = G4X_N_HDMI_DAC_MAX }, | |
352 | .m = { .min = G4X_M_HDMI_DAC_MIN, .max = G4X_M_HDMI_DAC_MAX }, | |
353 | .m1 = { .min = G4X_M1_HDMI_DAC_MIN, .max = G4X_M1_HDMI_DAC_MAX }, | |
354 | .m2 = { .min = G4X_M2_HDMI_DAC_MIN, .max = G4X_M2_HDMI_DAC_MAX }, | |
355 | .p = { .min = G4X_P_HDMI_DAC_MIN, .max = G4X_P_HDMI_DAC_MAX }, | |
356 | .p1 = { .min = G4X_P1_HDMI_DAC_MIN, .max = G4X_P1_HDMI_DAC_MAX}, | |
357 | .p2 = { .dot_limit = G4X_P2_HDMI_DAC_LIMIT, | |
358 | .p2_slow = G4X_P2_HDMI_DAC_SLOW, | |
359 | .p2_fast = G4X_P2_HDMI_DAC_FAST | |
360 | }, | |
d4906093 | 361 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
362 | }; |
363 | ||
364 | static const intel_limit_t intel_limits_g4x_single_channel_lvds = { | |
044c7c41 ML |
365 | .dot = { .min = G4X_DOT_SINGLE_CHANNEL_LVDS_MIN, |
366 | .max = G4X_DOT_SINGLE_CHANNEL_LVDS_MAX }, | |
367 | .vco = { .min = G4X_VCO_MIN, | |
368 | .max = G4X_VCO_MAX }, | |
369 | .n = { .min = G4X_N_SINGLE_CHANNEL_LVDS_MIN, | |
370 | .max = G4X_N_SINGLE_CHANNEL_LVDS_MAX }, | |
371 | .m = { .min = G4X_M_SINGLE_CHANNEL_LVDS_MIN, | |
372 | .max = G4X_M_SINGLE_CHANNEL_LVDS_MAX }, | |
373 | .m1 = { .min = G4X_M1_SINGLE_CHANNEL_LVDS_MIN, | |
374 | .max = G4X_M1_SINGLE_CHANNEL_LVDS_MAX }, | |
375 | .m2 = { .min = G4X_M2_SINGLE_CHANNEL_LVDS_MIN, | |
376 | .max = G4X_M2_SINGLE_CHANNEL_LVDS_MAX }, | |
377 | .p = { .min = G4X_P_SINGLE_CHANNEL_LVDS_MIN, | |
378 | .max = G4X_P_SINGLE_CHANNEL_LVDS_MAX }, | |
379 | .p1 = { .min = G4X_P1_SINGLE_CHANNEL_LVDS_MIN, | |
380 | .max = G4X_P1_SINGLE_CHANNEL_LVDS_MAX }, | |
381 | .p2 = { .dot_limit = G4X_P2_SINGLE_CHANNEL_LVDS_LIMIT, | |
382 | .p2_slow = G4X_P2_SINGLE_CHANNEL_LVDS_SLOW, | |
383 | .p2_fast = G4X_P2_SINGLE_CHANNEL_LVDS_FAST | |
384 | }, | |
d4906093 | 385 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
386 | }; |
387 | ||
388 | static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { | |
044c7c41 ML |
389 | .dot = { .min = G4X_DOT_DUAL_CHANNEL_LVDS_MIN, |
390 | .max = G4X_DOT_DUAL_CHANNEL_LVDS_MAX }, | |
391 | .vco = { .min = G4X_VCO_MIN, | |
392 | .max = G4X_VCO_MAX }, | |
393 | .n = { .min = G4X_N_DUAL_CHANNEL_LVDS_MIN, | |
394 | .max = G4X_N_DUAL_CHANNEL_LVDS_MAX }, | |
395 | .m = { .min = G4X_M_DUAL_CHANNEL_LVDS_MIN, | |
396 | .max = G4X_M_DUAL_CHANNEL_LVDS_MAX }, | |
397 | .m1 = { .min = G4X_M1_DUAL_CHANNEL_LVDS_MIN, | |
398 | .max = G4X_M1_DUAL_CHANNEL_LVDS_MAX }, | |
399 | .m2 = { .min = G4X_M2_DUAL_CHANNEL_LVDS_MIN, | |
400 | .max = G4X_M2_DUAL_CHANNEL_LVDS_MAX }, | |
401 | .p = { .min = G4X_P_DUAL_CHANNEL_LVDS_MIN, | |
402 | .max = G4X_P_DUAL_CHANNEL_LVDS_MAX }, | |
403 | .p1 = { .min = G4X_P1_DUAL_CHANNEL_LVDS_MIN, | |
404 | .max = G4X_P1_DUAL_CHANNEL_LVDS_MAX }, | |
405 | .p2 = { .dot_limit = G4X_P2_DUAL_CHANNEL_LVDS_LIMIT, | |
406 | .p2_slow = G4X_P2_DUAL_CHANNEL_LVDS_SLOW, | |
407 | .p2_fast = G4X_P2_DUAL_CHANNEL_LVDS_FAST | |
408 | }, | |
d4906093 | 409 | .find_pll = intel_g4x_find_best_PLL, |
e4b36699 KP |
410 | }; |
411 | ||
412 | static const intel_limit_t intel_limits_g4x_display_port = { | |
a4fc5ed6 KP |
413 | .dot = { .min = G4X_DOT_DISPLAY_PORT_MIN, |
414 | .max = G4X_DOT_DISPLAY_PORT_MAX }, | |
415 | .vco = { .min = G4X_VCO_MIN, | |
416 | .max = G4X_VCO_MAX}, | |
417 | .n = { .min = G4X_N_DISPLAY_PORT_MIN, | |
418 | .max = G4X_N_DISPLAY_PORT_MAX }, | |
419 | .m = { .min = G4X_M_DISPLAY_PORT_MIN, | |
420 | .max = G4X_M_DISPLAY_PORT_MAX }, | |
421 | .m1 = { .min = G4X_M1_DISPLAY_PORT_MIN, | |
422 | .max = G4X_M1_DISPLAY_PORT_MAX }, | |
423 | .m2 = { .min = G4X_M2_DISPLAY_PORT_MIN, | |
424 | .max = G4X_M2_DISPLAY_PORT_MAX }, | |
425 | .p = { .min = G4X_P_DISPLAY_PORT_MIN, | |
426 | .max = G4X_P_DISPLAY_PORT_MAX }, | |
427 | .p1 = { .min = G4X_P1_DISPLAY_PORT_MIN, | |
428 | .max = G4X_P1_DISPLAY_PORT_MAX}, | |
429 | .p2 = { .dot_limit = G4X_P2_DISPLAY_PORT_LIMIT, | |
430 | .p2_slow = G4X_P2_DISPLAY_PORT_SLOW, | |
431 | .p2_fast = G4X_P2_DISPLAY_PORT_FAST }, | |
432 | .find_pll = intel_find_pll_g4x_dp, | |
e4b36699 KP |
433 | }; |
434 | ||
435 | static const intel_limit_t intel_limits_igd_sdvo = { | |
2177832f SL |
436 | .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX}, |
437 | .vco = { .min = IGD_VCO_MIN, .max = IGD_VCO_MAX }, | |
438 | .n = { .min = IGD_N_MIN, .max = IGD_N_MAX }, | |
439 | .m = { .min = IGD_M_MIN, .max = IGD_M_MAX }, | |
440 | .m1 = { .min = IGD_M1_MIN, .max = IGD_M1_MAX }, | |
441 | .m2 = { .min = IGD_M2_MIN, .max = IGD_M2_MAX }, | |
442 | .p = { .min = I9XX_P_SDVO_DAC_MIN, .max = I9XX_P_SDVO_DAC_MAX }, | |
443 | .p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX }, | |
444 | .p2 = { .dot_limit = I9XX_P2_SDVO_DAC_SLOW_LIMIT, | |
445 | .p2_slow = I9XX_P2_SDVO_DAC_SLOW, .p2_fast = I9XX_P2_SDVO_DAC_FAST }, | |
6115707b | 446 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
447 | }; |
448 | ||
449 | static const intel_limit_t intel_limits_igd_lvds = { | |
2177832f SL |
450 | .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX }, |
451 | .vco = { .min = IGD_VCO_MIN, .max = IGD_VCO_MAX }, | |
452 | .n = { .min = IGD_N_MIN, .max = IGD_N_MAX }, | |
453 | .m = { .min = IGD_M_MIN, .max = IGD_M_MAX }, | |
454 | .m1 = { .min = IGD_M1_MIN, .max = IGD_M1_MAX }, | |
455 | .m2 = { .min = IGD_M2_MIN, .max = IGD_M2_MAX }, | |
456 | .p = { .min = IGD_P_LVDS_MIN, .max = IGD_P_LVDS_MAX }, | |
457 | .p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX }, | |
458 | /* IGD only supports single-channel mode. */ | |
459 | .p2 = { .dot_limit = I9XX_P2_LVDS_SLOW_LIMIT, | |
460 | .p2_slow = I9XX_P2_LVDS_SLOW, .p2_fast = I9XX_P2_LVDS_SLOW }, | |
6115707b | 461 | .find_pll = intel_find_best_PLL, |
e4b36699 KP |
462 | }; |
463 | ||
464 | static const intel_limit_t intel_limits_igdng_sdvo = { | |
2c07245f ZW |
465 | .dot = { .min = IGDNG_DOT_MIN, .max = IGDNG_DOT_MAX }, |
466 | .vco = { .min = IGDNG_VCO_MIN, .max = IGDNG_VCO_MAX }, | |
467 | .n = { .min = IGDNG_N_MIN, .max = IGDNG_N_MAX }, | |
468 | .m = { .min = IGDNG_M_MIN, .max = IGDNG_M_MAX }, | |
469 | .m1 = { .min = IGDNG_M1_MIN, .max = IGDNG_M1_MAX }, | |
470 | .m2 = { .min = IGDNG_M2_MIN, .max = IGDNG_M2_MAX }, | |
471 | .p = { .min = IGDNG_P_SDVO_DAC_MIN, .max = IGDNG_P_SDVO_DAC_MAX }, | |
472 | .p1 = { .min = IGDNG_P1_MIN, .max = IGDNG_P1_MAX }, | |
473 | .p2 = { .dot_limit = IGDNG_P2_DOT_LIMIT, | |
474 | .p2_slow = IGDNG_P2_SDVO_DAC_SLOW, | |
475 | .p2_fast = IGDNG_P2_SDVO_DAC_FAST }, | |
476 | .find_pll = intel_igdng_find_best_PLL, | |
e4b36699 KP |
477 | }; |
478 | ||
479 | static const intel_limit_t intel_limits_igdng_lvds = { | |
2c07245f ZW |
480 | .dot = { .min = IGDNG_DOT_MIN, .max = IGDNG_DOT_MAX }, |
481 | .vco = { .min = IGDNG_VCO_MIN, .max = IGDNG_VCO_MAX }, | |
482 | .n = { .min = IGDNG_N_MIN, .max = IGDNG_N_MAX }, | |
483 | .m = { .min = IGDNG_M_MIN, .max = IGDNG_M_MAX }, | |
484 | .m1 = { .min = IGDNG_M1_MIN, .max = IGDNG_M1_MAX }, | |
485 | .m2 = { .min = IGDNG_M2_MIN, .max = IGDNG_M2_MAX }, | |
486 | .p = { .min = IGDNG_P_LVDS_MIN, .max = IGDNG_P_LVDS_MAX }, | |
487 | .p1 = { .min = IGDNG_P1_MIN, .max = IGDNG_P1_MAX }, | |
488 | .p2 = { .dot_limit = IGDNG_P2_DOT_LIMIT, | |
489 | .p2_slow = IGDNG_P2_LVDS_SLOW, | |
490 | .p2_fast = IGDNG_P2_LVDS_FAST }, | |
491 | .find_pll = intel_igdng_find_best_PLL, | |
79e53945 JB |
492 | }; |
493 | ||
2c07245f ZW |
494 | static const intel_limit_t *intel_igdng_limit(struct drm_crtc *crtc) |
495 | { | |
496 | const intel_limit_t *limit; | |
497 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
e4b36699 | 498 | limit = &intel_limits_igdng_lvds; |
2c07245f | 499 | else |
e4b36699 | 500 | limit = &intel_limits_igdng_sdvo; |
2c07245f ZW |
501 | |
502 | return limit; | |
503 | } | |
504 | ||
044c7c41 ML |
505 | static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc) |
506 | { | |
507 | struct drm_device *dev = crtc->dev; | |
508 | struct drm_i915_private *dev_priv = dev->dev_private; | |
509 | const intel_limit_t *limit; | |
510 | ||
511 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
512 | if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) == | |
513 | LVDS_CLKB_POWER_UP) | |
514 | /* LVDS with dual channel */ | |
e4b36699 | 515 | limit = &intel_limits_g4x_dual_channel_lvds; |
044c7c41 ML |
516 | else |
517 | /* LVDS with dual channel */ | |
e4b36699 | 518 | limit = &intel_limits_g4x_single_channel_lvds; |
044c7c41 ML |
519 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) || |
520 | intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { | |
e4b36699 | 521 | limit = &intel_limits_g4x_hdmi; |
044c7c41 | 522 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) { |
e4b36699 | 523 | limit = &intel_limits_g4x_sdvo; |
a4fc5ed6 | 524 | } else if (intel_pipe_has_type (crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
e4b36699 | 525 | limit = &intel_limits_g4x_display_port; |
044c7c41 | 526 | } else /* The option is for other outputs */ |
e4b36699 | 527 | limit = &intel_limits_i9xx_sdvo; |
044c7c41 ML |
528 | |
529 | return limit; | |
530 | } | |
531 | ||
79e53945 JB |
532 | static const intel_limit_t *intel_limit(struct drm_crtc *crtc) |
533 | { | |
534 | struct drm_device *dev = crtc->dev; | |
535 | const intel_limit_t *limit; | |
536 | ||
2c07245f ZW |
537 | if (IS_IGDNG(dev)) |
538 | limit = intel_igdng_limit(crtc); | |
539 | else if (IS_G4X(dev)) { | |
044c7c41 | 540 | limit = intel_g4x_limit(crtc); |
2177832f | 541 | } else if (IS_I9XX(dev) && !IS_IGD(dev)) { |
79e53945 | 542 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
e4b36699 | 543 | limit = &intel_limits_i9xx_lvds; |
79e53945 | 544 | else |
e4b36699 | 545 | limit = &intel_limits_i9xx_sdvo; |
2177832f SL |
546 | } else if (IS_IGD(dev)) { |
547 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
e4b36699 | 548 | limit = &intel_limits_igd_lvds; |
2177832f | 549 | else |
e4b36699 | 550 | limit = &intel_limits_igd_sdvo; |
79e53945 JB |
551 | } else { |
552 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) | |
e4b36699 | 553 | limit = &intel_limits_i8xx_lvds; |
79e53945 | 554 | else |
e4b36699 | 555 | limit = &intel_limits_i8xx_dvo; |
79e53945 JB |
556 | } |
557 | return limit; | |
558 | } | |
559 | ||
2177832f SL |
560 | /* m1 is reserved as 0 in IGD, n is a ring counter */ |
561 | static void igd_clock(int refclk, intel_clock_t *clock) | |
79e53945 | 562 | { |
2177832f SL |
563 | clock->m = clock->m2 + 2; |
564 | clock->p = clock->p1 * clock->p2; | |
565 | clock->vco = refclk * clock->m / clock->n; | |
566 | clock->dot = clock->vco / clock->p; | |
567 | } | |
568 | ||
569 | static void intel_clock(struct drm_device *dev, int refclk, intel_clock_t *clock) | |
570 | { | |
571 | if (IS_IGD(dev)) { | |
572 | igd_clock(refclk, clock); | |
573 | return; | |
574 | } | |
79e53945 JB |
575 | clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2); |
576 | clock->p = clock->p1 * clock->p2; | |
577 | clock->vco = refclk * clock->m / (clock->n + 2); | |
578 | clock->dot = clock->vco / clock->p; | |
579 | } | |
580 | ||
79e53945 JB |
581 | /** |
582 | * Returns whether any output on the specified pipe is of the specified type | |
583 | */ | |
584 | bool intel_pipe_has_type (struct drm_crtc *crtc, int type) | |
585 | { | |
586 | struct drm_device *dev = crtc->dev; | |
587 | struct drm_mode_config *mode_config = &dev->mode_config; | |
588 | struct drm_connector *l_entry; | |
589 | ||
590 | list_for_each_entry(l_entry, &mode_config->connector_list, head) { | |
591 | if (l_entry->encoder && | |
592 | l_entry->encoder->crtc == crtc) { | |
593 | struct intel_output *intel_output = to_intel_output(l_entry); | |
594 | if (intel_output->type == type) | |
595 | return true; | |
596 | } | |
597 | } | |
598 | return false; | |
599 | } | |
600 | ||
7c04d1d9 | 601 | #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) |
79e53945 JB |
602 | /** |
603 | * Returns whether the given set of divisors are valid for a given refclk with | |
604 | * the given connectors. | |
605 | */ | |
606 | ||
607 | static bool intel_PLL_is_valid(struct drm_crtc *crtc, intel_clock_t *clock) | |
608 | { | |
609 | const intel_limit_t *limit = intel_limit (crtc); | |
2177832f | 610 | struct drm_device *dev = crtc->dev; |
79e53945 JB |
611 | |
612 | if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1) | |
613 | INTELPllInvalid ("p1 out of range\n"); | |
614 | if (clock->p < limit->p.min || limit->p.max < clock->p) | |
615 | INTELPllInvalid ("p out of range\n"); | |
616 | if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2) | |
617 | INTELPllInvalid ("m2 out of range\n"); | |
618 | if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1) | |
619 | INTELPllInvalid ("m1 out of range\n"); | |
2177832f | 620 | if (clock->m1 <= clock->m2 && !IS_IGD(dev)) |
79e53945 JB |
621 | INTELPllInvalid ("m1 <= m2\n"); |
622 | if (clock->m < limit->m.min || limit->m.max < clock->m) | |
623 | INTELPllInvalid ("m out of range\n"); | |
624 | if (clock->n < limit->n.min || limit->n.max < clock->n) | |
625 | INTELPllInvalid ("n out of range\n"); | |
626 | if (clock->vco < limit->vco.min || limit->vco.max < clock->vco) | |
627 | INTELPllInvalid ("vco out of range\n"); | |
628 | /* XXX: We may need to be checking "Dot clock" depending on the multiplier, | |
629 | * connector, etc., rather than just a single range. | |
630 | */ | |
631 | if (clock->dot < limit->dot.min || limit->dot.max < clock->dot) | |
632 | INTELPllInvalid ("dot out of range\n"); | |
633 | ||
634 | return true; | |
635 | } | |
636 | ||
d4906093 ML |
637 | static bool |
638 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
639 | int target, int refclk, intel_clock_t *best_clock) | |
640 | ||
79e53945 JB |
641 | { |
642 | struct drm_device *dev = crtc->dev; | |
643 | struct drm_i915_private *dev_priv = dev->dev_private; | |
644 | intel_clock_t clock; | |
79e53945 JB |
645 | int err = target; |
646 | ||
647 | if (IS_I9XX(dev) && intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && | |
832cc28d | 648 | (I915_READ(LVDS)) != 0) { |
79e53945 JB |
649 | /* |
650 | * For LVDS, if the panel is on, just rely on its current | |
651 | * settings for dual-channel. We haven't figured out how to | |
652 | * reliably set up different single/dual channel state, if we | |
653 | * even can. | |
654 | */ | |
655 | if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) == | |
656 | LVDS_CLKB_POWER_UP) | |
657 | clock.p2 = limit->p2.p2_fast; | |
658 | else | |
659 | clock.p2 = limit->p2.p2_slow; | |
660 | } else { | |
661 | if (target < limit->p2.dot_limit) | |
662 | clock.p2 = limit->p2.p2_slow; | |
663 | else | |
664 | clock.p2 = limit->p2.p2_fast; | |
665 | } | |
666 | ||
667 | memset (best_clock, 0, sizeof (*best_clock)); | |
668 | ||
669 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; clock.m1++) { | |
2177832f SL |
670 | for (clock.m2 = limit->m2.min; clock.m2 <= limit->m2.max; clock.m2++) { |
671 | /* m1 is always 0 in IGD */ | |
672 | if (clock.m2 >= clock.m1 && !IS_IGD(dev)) | |
673 | break; | |
79e53945 JB |
674 | for (clock.n = limit->n.min; clock.n <= limit->n.max; |
675 | clock.n++) { | |
676 | for (clock.p1 = limit->p1.min; | |
677 | clock.p1 <= limit->p1.max; clock.p1++) { | |
678 | int this_err; | |
679 | ||
2177832f | 680 | intel_clock(dev, refclk, &clock); |
79e53945 JB |
681 | |
682 | if (!intel_PLL_is_valid(crtc, &clock)) | |
683 | continue; | |
684 | ||
685 | this_err = abs(clock.dot - target); | |
686 | if (this_err < err) { | |
687 | *best_clock = clock; | |
688 | err = this_err; | |
689 | } | |
690 | } | |
691 | } | |
692 | } | |
693 | } | |
694 | ||
695 | return (err != target); | |
696 | } | |
697 | ||
d4906093 ML |
698 | static bool |
699 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
700 | int target, int refclk, intel_clock_t *best_clock) | |
701 | { | |
702 | struct drm_device *dev = crtc->dev; | |
703 | struct drm_i915_private *dev_priv = dev->dev_private; | |
704 | intel_clock_t clock; | |
705 | int max_n; | |
706 | bool found; | |
707 | /* approximately equals target * 0.00488 */ | |
708 | int err_most = (target >> 8) + (target >> 10); | |
709 | found = false; | |
710 | ||
711 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
712 | if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) == | |
713 | LVDS_CLKB_POWER_UP) | |
714 | clock.p2 = limit->p2.p2_fast; | |
715 | else | |
716 | clock.p2 = limit->p2.p2_slow; | |
717 | } else { | |
718 | if (target < limit->p2.dot_limit) | |
719 | clock.p2 = limit->p2.p2_slow; | |
720 | else | |
721 | clock.p2 = limit->p2.p2_fast; | |
722 | } | |
723 | ||
724 | memset(best_clock, 0, sizeof(*best_clock)); | |
725 | max_n = limit->n.max; | |
726 | /* based on hardware requriment prefer smaller n to precision */ | |
727 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { | |
728 | /* based on hardware requirment prefere larger m1,m2, p1 */ | |
729 | for (clock.m1 = limit->m1.max; | |
730 | clock.m1 >= limit->m1.min; clock.m1--) { | |
731 | for (clock.m2 = limit->m2.max; | |
732 | clock.m2 >= limit->m2.min; clock.m2--) { | |
733 | for (clock.p1 = limit->p1.max; | |
734 | clock.p1 >= limit->p1.min; clock.p1--) { | |
735 | int this_err; | |
736 | ||
2177832f | 737 | intel_clock(dev, refclk, &clock); |
d4906093 ML |
738 | if (!intel_PLL_is_valid(crtc, &clock)) |
739 | continue; | |
740 | this_err = abs(clock.dot - target) ; | |
741 | if (this_err < err_most) { | |
742 | *best_clock = clock; | |
743 | err_most = this_err; | |
744 | max_n = clock.n; | |
745 | found = true; | |
746 | } | |
747 | } | |
748 | } | |
749 | } | |
750 | } | |
2c07245f ZW |
751 | return found; |
752 | } | |
753 | ||
754 | static bool | |
755 | intel_igdng_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, | |
756 | int target, int refclk, intel_clock_t *best_clock) | |
757 | { | |
758 | struct drm_device *dev = crtc->dev; | |
759 | struct drm_i915_private *dev_priv = dev->dev_private; | |
760 | intel_clock_t clock; | |
761 | int max_n; | |
762 | bool found; | |
763 | int err_most = 47; | |
764 | found = false; | |
765 | ||
766 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { | |
767 | if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) == | |
768 | LVDS_CLKB_POWER_UP) | |
769 | clock.p2 = limit->p2.p2_fast; | |
770 | else | |
771 | clock.p2 = limit->p2.p2_slow; | |
772 | } else { | |
773 | if (target < limit->p2.dot_limit) | |
774 | clock.p2 = limit->p2.p2_slow; | |
775 | else | |
776 | clock.p2 = limit->p2.p2_fast; | |
777 | } | |
778 | ||
779 | memset(best_clock, 0, sizeof(*best_clock)); | |
780 | max_n = limit->n.max; | |
781 | /* based on hardware requriment prefer smaller n to precision */ | |
782 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { | |
783 | /* based on hardware requirment prefere larger m1,m2, p1 */ | |
784 | for (clock.m1 = limit->m1.max; | |
785 | clock.m1 >= limit->m1.min; clock.m1--) { | |
786 | for (clock.m2 = limit->m2.max; | |
787 | clock.m2 >= limit->m2.min; clock.m2--) { | |
788 | for (clock.p1 = limit->p1.max; | |
789 | clock.p1 >= limit->p1.min; clock.p1--) { | |
790 | int this_err; | |
d4906093 | 791 | |
2c07245f ZW |
792 | intel_clock(dev, refclk, &clock); |
793 | if (!intel_PLL_is_valid(crtc, &clock)) | |
794 | continue; | |
795 | this_err = abs((10000 - (target*10000/clock.dot))); | |
796 | if (this_err < err_most) { | |
797 | *best_clock = clock; | |
798 | err_most = this_err; | |
799 | max_n = clock.n; | |
800 | found = true; | |
801 | /* found on first matching */ | |
802 | goto out; | |
803 | } | |
804 | } | |
805 | } | |
806 | } | |
807 | } | |
808 | out: | |
d4906093 ML |
809 | return found; |
810 | } | |
811 | ||
a4fc5ed6 KP |
812 | /* DisplayPort has only two frequencies, 162MHz and 270MHz */ |
813 | static bool | |
814 | intel_find_pll_g4x_dp(const intel_limit_t *limit, struct drm_crtc *crtc, | |
815 | int target, int refclk, intel_clock_t *best_clock) | |
816 | { | |
817 | intel_clock_t clock; | |
818 | if (target < 200000) { | |
a4fc5ed6 KP |
819 | clock.p1 = 2; |
820 | clock.p2 = 10; | |
b3d25495 KP |
821 | clock.n = 2; |
822 | clock.m1 = 23; | |
823 | clock.m2 = 8; | |
a4fc5ed6 | 824 | } else { |
a4fc5ed6 KP |
825 | clock.p1 = 1; |
826 | clock.p2 = 10; | |
b3d25495 KP |
827 | clock.n = 1; |
828 | clock.m1 = 14; | |
829 | clock.m2 = 2; | |
a4fc5ed6 | 830 | } |
b3d25495 KP |
831 | clock.m = 5 * (clock.m1 + 2) + (clock.m2 + 2); |
832 | clock.p = (clock.p1 * clock.p2); | |
833 | clock.dot = 96000 * clock.m / (clock.n + 2) / clock.p; | |
a4fc5ed6 KP |
834 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); |
835 | return true; | |
836 | } | |
837 | ||
79e53945 JB |
838 | void |
839 | intel_wait_for_vblank(struct drm_device *dev) | |
840 | { | |
841 | /* Wait for 20ms, i.e. one cycle at 50hz. */ | |
580982d3 | 842 | mdelay(20); |
79e53945 JB |
843 | } |
844 | ||
5c3b82e2 | 845 | static int |
3c4fdcfb KH |
846 | intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, |
847 | struct drm_framebuffer *old_fb) | |
79e53945 JB |
848 | { |
849 | struct drm_device *dev = crtc->dev; | |
850 | struct drm_i915_private *dev_priv = dev->dev_private; | |
851 | struct drm_i915_master_private *master_priv; | |
852 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
853 | struct intel_framebuffer *intel_fb; | |
854 | struct drm_i915_gem_object *obj_priv; | |
855 | struct drm_gem_object *obj; | |
856 | int pipe = intel_crtc->pipe; | |
857 | unsigned long Start, Offset; | |
858 | int dspbase = (pipe == 0 ? DSPAADDR : DSPBADDR); | |
859 | int dspsurf = (pipe == 0 ? DSPASURF : DSPBSURF); | |
860 | int dspstride = (pipe == 0) ? DSPASTRIDE : DSPBSTRIDE; | |
f544847f | 861 | int dsptileoff = (pipe == 0 ? DSPATILEOFF : DSPBTILEOFF); |
79e53945 | 862 | int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR; |
3c4fdcfb | 863 | u32 dspcntr, alignment; |
5c3b82e2 | 864 | int ret; |
79e53945 JB |
865 | |
866 | /* no fb bound */ | |
867 | if (!crtc->fb) { | |
868 | DRM_DEBUG("No FB bound\n"); | |
5c3b82e2 CW |
869 | return 0; |
870 | } | |
871 | ||
872 | switch (pipe) { | |
873 | case 0: | |
874 | case 1: | |
875 | break; | |
876 | default: | |
877 | DRM_ERROR("Can't update pipe %d in SAREA\n", pipe); | |
878 | return -EINVAL; | |
79e53945 JB |
879 | } |
880 | ||
881 | intel_fb = to_intel_framebuffer(crtc->fb); | |
79e53945 JB |
882 | obj = intel_fb->obj; |
883 | obj_priv = obj->driver_private; | |
884 | ||
3c4fdcfb KH |
885 | switch (obj_priv->tiling_mode) { |
886 | case I915_TILING_NONE: | |
887 | alignment = 64 * 1024; | |
888 | break; | |
889 | case I915_TILING_X: | |
2ebed176 CW |
890 | /* pin() will align the object as required by fence */ |
891 | alignment = 0; | |
3c4fdcfb KH |
892 | break; |
893 | case I915_TILING_Y: | |
894 | /* FIXME: Is this true? */ | |
895 | DRM_ERROR("Y tiled not allowed for scan out buffers\n"); | |
5c3b82e2 | 896 | return -EINVAL; |
3c4fdcfb KH |
897 | default: |
898 | BUG(); | |
899 | } | |
900 | ||
5c3b82e2 | 901 | mutex_lock(&dev->struct_mutex); |
8c4b8c3f | 902 | ret = i915_gem_object_pin(obj, alignment); |
5c3b82e2 CW |
903 | if (ret != 0) { |
904 | mutex_unlock(&dev->struct_mutex); | |
905 | return ret; | |
906 | } | |
79e53945 | 907 | |
8c4b8c3f | 908 | ret = i915_gem_object_set_to_gtt_domain(obj, 1); |
5c3b82e2 | 909 | if (ret != 0) { |
8c4b8c3f | 910 | i915_gem_object_unpin(obj); |
5c3b82e2 CW |
911 | mutex_unlock(&dev->struct_mutex); |
912 | return ret; | |
913 | } | |
79e53945 | 914 | |
8c4b8c3f CW |
915 | /* Pre-i965 needs to install a fence for tiled scan-out */ |
916 | if (!IS_I965G(dev) && | |
917 | obj_priv->fence_reg == I915_FENCE_REG_NONE && | |
918 | obj_priv->tiling_mode != I915_TILING_NONE) { | |
919 | ret = i915_gem_object_get_fence_reg(obj); | |
920 | if (ret != 0) { | |
921 | i915_gem_object_unpin(obj); | |
922 | mutex_unlock(&dev->struct_mutex); | |
923 | return ret; | |
924 | } | |
925 | } | |
926 | ||
79e53945 | 927 | dspcntr = I915_READ(dspcntr_reg); |
712531bf JB |
928 | /* Mask out pixel format bits in case we change it */ |
929 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; | |
79e53945 JB |
930 | switch (crtc->fb->bits_per_pixel) { |
931 | case 8: | |
932 | dspcntr |= DISPPLANE_8BPP; | |
933 | break; | |
934 | case 16: | |
935 | if (crtc->fb->depth == 15) | |
936 | dspcntr |= DISPPLANE_15_16BPP; | |
937 | else | |
938 | dspcntr |= DISPPLANE_16BPP; | |
939 | break; | |
940 | case 24: | |
941 | case 32: | |
942 | dspcntr |= DISPPLANE_32BPP_NO_ALPHA; | |
943 | break; | |
944 | default: | |
945 | DRM_ERROR("Unknown color depth\n"); | |
8c4b8c3f | 946 | i915_gem_object_unpin(obj); |
5c3b82e2 CW |
947 | mutex_unlock(&dev->struct_mutex); |
948 | return -EINVAL; | |
79e53945 | 949 | } |
f544847f JB |
950 | if (IS_I965G(dev)) { |
951 | if (obj_priv->tiling_mode != I915_TILING_NONE) | |
952 | dspcntr |= DISPPLANE_TILED; | |
953 | else | |
954 | dspcntr &= ~DISPPLANE_TILED; | |
955 | } | |
956 | ||
79e53945 JB |
957 | I915_WRITE(dspcntr_reg, dspcntr); |
958 | ||
5c3b82e2 CW |
959 | Start = obj_priv->gtt_offset; |
960 | Offset = y * crtc->fb->pitch + x * (crtc->fb->bits_per_pixel / 8); | |
961 | ||
79e53945 | 962 | DRM_DEBUG("Writing base %08lX %08lX %d %d\n", Start, Offset, x, y); |
5c3b82e2 | 963 | I915_WRITE(dspstride, crtc->fb->pitch); |
79e53945 JB |
964 | if (IS_I965G(dev)) { |
965 | I915_WRITE(dspbase, Offset); | |
966 | I915_READ(dspbase); | |
967 | I915_WRITE(dspsurf, Start); | |
968 | I915_READ(dspsurf); | |
f544847f | 969 | I915_WRITE(dsptileoff, (y << 16) | x); |
79e53945 JB |
970 | } else { |
971 | I915_WRITE(dspbase, Start + Offset); | |
972 | I915_READ(dspbase); | |
973 | } | |
974 | ||
3c4fdcfb KH |
975 | intel_wait_for_vblank(dev); |
976 | ||
977 | if (old_fb) { | |
978 | intel_fb = to_intel_framebuffer(old_fb); | |
979 | i915_gem_object_unpin(intel_fb->obj); | |
980 | } | |
5c3b82e2 | 981 | mutex_unlock(&dev->struct_mutex); |
79e53945 JB |
982 | |
983 | if (!dev->primary->master) | |
5c3b82e2 | 984 | return 0; |
79e53945 JB |
985 | |
986 | master_priv = dev->primary->master->driver_priv; | |
987 | if (!master_priv->sarea_priv) | |
5c3b82e2 | 988 | return 0; |
79e53945 | 989 | |
5c3b82e2 | 990 | if (pipe) { |
79e53945 JB |
991 | master_priv->sarea_priv->pipeB_x = x; |
992 | master_priv->sarea_priv->pipeB_y = y; | |
5c3b82e2 CW |
993 | } else { |
994 | master_priv->sarea_priv->pipeA_x = x; | |
995 | master_priv->sarea_priv->pipeA_y = y; | |
79e53945 | 996 | } |
5c3b82e2 CW |
997 | |
998 | return 0; | |
79e53945 JB |
999 | } |
1000 | ||
2c07245f ZW |
1001 | static void igdng_crtc_dpms(struct drm_crtc *crtc, int mode) |
1002 | { | |
1003 | struct drm_device *dev = crtc->dev; | |
1004 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1005 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1006 | int pipe = intel_crtc->pipe; | |
7662c8bd | 1007 | int plane = intel_crtc->plane; |
2c07245f ZW |
1008 | int pch_dpll_reg = (pipe == 0) ? PCH_DPLL_A : PCH_DPLL_B; |
1009 | int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF; | |
1010 | int dspcntr_reg = (plane == 0) ? DSPACNTR : DSPBCNTR; | |
1011 | int dspbase_reg = (plane == 0) ? DSPAADDR : DSPBADDR; | |
1012 | int fdi_tx_reg = (pipe == 0) ? FDI_TXA_CTL : FDI_TXB_CTL; | |
1013 | int fdi_rx_reg = (pipe == 0) ? FDI_RXA_CTL : FDI_RXB_CTL; | |
1014 | int fdi_rx_iir_reg = (pipe == 0) ? FDI_RXA_IIR : FDI_RXB_IIR; | |
1015 | int fdi_rx_imr_reg = (pipe == 0) ? FDI_RXA_IMR : FDI_RXB_IMR; | |
1016 | int transconf_reg = (pipe == 0) ? TRANSACONF : TRANSBCONF; | |
1017 | int pf_ctl_reg = (pipe == 0) ? PFA_CTL_1 : PFB_CTL_1; | |
1018 | int cpu_htot_reg = (pipe == 0) ? HTOTAL_A : HTOTAL_B; | |
1019 | int cpu_hblank_reg = (pipe == 0) ? HBLANK_A : HBLANK_B; | |
1020 | int cpu_hsync_reg = (pipe == 0) ? HSYNC_A : HSYNC_B; | |
1021 | int cpu_vtot_reg = (pipe == 0) ? VTOTAL_A : VTOTAL_B; | |
1022 | int cpu_vblank_reg = (pipe == 0) ? VBLANK_A : VBLANK_B; | |
1023 | int cpu_vsync_reg = (pipe == 0) ? VSYNC_A : VSYNC_B; | |
1024 | int trans_htot_reg = (pipe == 0) ? TRANS_HTOTAL_A : TRANS_HTOTAL_B; | |
1025 | int trans_hblank_reg = (pipe == 0) ? TRANS_HBLANK_A : TRANS_HBLANK_B; | |
1026 | int trans_hsync_reg = (pipe == 0) ? TRANS_HSYNC_A : TRANS_HSYNC_B; | |
1027 | int trans_vtot_reg = (pipe == 0) ? TRANS_VTOTAL_A : TRANS_VTOTAL_B; | |
1028 | int trans_vblank_reg = (pipe == 0) ? TRANS_VBLANK_A : TRANS_VBLANK_B; | |
1029 | int trans_vsync_reg = (pipe == 0) ? TRANS_VSYNC_A : TRANS_VSYNC_B; | |
1030 | u32 temp; | |
1031 | int tries = 5, j; | |
79e53945 | 1032 | |
2c07245f ZW |
1033 | /* XXX: When our outputs are all unaware of DPMS modes other than off |
1034 | * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC. | |
1035 | */ | |
1036 | switch (mode) { | |
1037 | case DRM_MODE_DPMS_ON: | |
1038 | case DRM_MODE_DPMS_STANDBY: | |
1039 | case DRM_MODE_DPMS_SUSPEND: | |
1040 | DRM_DEBUG("crtc %d dpms on\n", pipe); | |
1041 | /* enable PCH DPLL */ | |
1042 | temp = I915_READ(pch_dpll_reg); | |
1043 | if ((temp & DPLL_VCO_ENABLE) == 0) { | |
1044 | I915_WRITE(pch_dpll_reg, temp | DPLL_VCO_ENABLE); | |
1045 | I915_READ(pch_dpll_reg); | |
1046 | } | |
79e53945 | 1047 | |
2c07245f ZW |
1048 | /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ |
1049 | temp = I915_READ(fdi_rx_reg); | |
1050 | I915_WRITE(fdi_rx_reg, temp | FDI_RX_PLL_ENABLE | | |
1051 | FDI_SEL_PCDCLK | | |
1052 | FDI_DP_PORT_WIDTH_X4); /* default 4 lanes */ | |
1053 | I915_READ(fdi_rx_reg); | |
1054 | udelay(200); | |
1055 | ||
1056 | /* Enable CPU FDI TX PLL, always on for IGDNG */ | |
1057 | temp = I915_READ(fdi_tx_reg); | |
1058 | if ((temp & FDI_TX_PLL_ENABLE) == 0) { | |
1059 | I915_WRITE(fdi_tx_reg, temp | FDI_TX_PLL_ENABLE); | |
1060 | I915_READ(fdi_tx_reg); | |
1061 | udelay(100); | |
1062 | } | |
1063 | ||
1064 | /* Enable CPU pipe */ | |
1065 | temp = I915_READ(pipeconf_reg); | |
1066 | if ((temp & PIPEACONF_ENABLE) == 0) { | |
1067 | I915_WRITE(pipeconf_reg, temp | PIPEACONF_ENABLE); | |
1068 | I915_READ(pipeconf_reg); | |
1069 | udelay(100); | |
1070 | } | |
1071 | ||
1072 | /* configure and enable CPU plane */ | |
1073 | temp = I915_READ(dspcntr_reg); | |
1074 | if ((temp & DISPLAY_PLANE_ENABLE) == 0) { | |
1075 | I915_WRITE(dspcntr_reg, temp | DISPLAY_PLANE_ENABLE); | |
1076 | /* Flush the plane changes */ | |
1077 | I915_WRITE(dspbase_reg, I915_READ(dspbase_reg)); | |
1078 | } | |
1079 | ||
1080 | /* enable CPU FDI TX and PCH FDI RX */ | |
1081 | temp = I915_READ(fdi_tx_reg); | |
1082 | temp |= FDI_TX_ENABLE; | |
1083 | temp |= FDI_DP_PORT_WIDTH_X4; /* default */ | |
1084 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1085 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
1086 | I915_WRITE(fdi_tx_reg, temp); | |
1087 | I915_READ(fdi_tx_reg); | |
1088 | ||
1089 | temp = I915_READ(fdi_rx_reg); | |
1090 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1091 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
1092 | I915_WRITE(fdi_rx_reg, temp | FDI_RX_ENABLE); | |
1093 | I915_READ(fdi_rx_reg); | |
1094 | ||
1095 | udelay(150); | |
1096 | ||
1097 | /* Train FDI. */ | |
1098 | /* umask FDI RX Interrupt symbol_lock and bit_lock bit | |
1099 | for train result */ | |
1100 | temp = I915_READ(fdi_rx_imr_reg); | |
1101 | temp &= ~FDI_RX_SYMBOL_LOCK; | |
1102 | temp &= ~FDI_RX_BIT_LOCK; | |
1103 | I915_WRITE(fdi_rx_imr_reg, temp); | |
1104 | I915_READ(fdi_rx_imr_reg); | |
1105 | udelay(150); | |
1106 | ||
1107 | temp = I915_READ(fdi_rx_iir_reg); | |
1108 | DRM_DEBUG("FDI_RX_IIR 0x%x\n", temp); | |
1109 | ||
1110 | if ((temp & FDI_RX_BIT_LOCK) == 0) { | |
1111 | for (j = 0; j < tries; j++) { | |
1112 | temp = I915_READ(fdi_rx_iir_reg); | |
1113 | DRM_DEBUG("FDI_RX_IIR 0x%x\n", temp); | |
1114 | if (temp & FDI_RX_BIT_LOCK) | |
1115 | break; | |
1116 | udelay(200); | |
1117 | } | |
1118 | if (j != tries) | |
1119 | I915_WRITE(fdi_rx_iir_reg, | |
1120 | temp | FDI_RX_BIT_LOCK); | |
1121 | else | |
1122 | DRM_DEBUG("train 1 fail\n"); | |
1123 | } else { | |
1124 | I915_WRITE(fdi_rx_iir_reg, | |
1125 | temp | FDI_RX_BIT_LOCK); | |
1126 | DRM_DEBUG("train 1 ok 2!\n"); | |
1127 | } | |
1128 | temp = I915_READ(fdi_tx_reg); | |
1129 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1130 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
1131 | I915_WRITE(fdi_tx_reg, temp); | |
1132 | ||
1133 | temp = I915_READ(fdi_rx_reg); | |
1134 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1135 | temp |= FDI_LINK_TRAIN_PATTERN_2; | |
1136 | I915_WRITE(fdi_rx_reg, temp); | |
1137 | ||
1138 | udelay(150); | |
1139 | ||
1140 | temp = I915_READ(fdi_rx_iir_reg); | |
1141 | DRM_DEBUG("FDI_RX_IIR 0x%x\n", temp); | |
1142 | ||
1143 | if ((temp & FDI_RX_SYMBOL_LOCK) == 0) { | |
1144 | for (j = 0; j < tries; j++) { | |
1145 | temp = I915_READ(fdi_rx_iir_reg); | |
1146 | DRM_DEBUG("FDI_RX_IIR 0x%x\n", temp); | |
1147 | if (temp & FDI_RX_SYMBOL_LOCK) | |
1148 | break; | |
1149 | udelay(200); | |
1150 | } | |
1151 | if (j != tries) { | |
1152 | I915_WRITE(fdi_rx_iir_reg, | |
1153 | temp | FDI_RX_SYMBOL_LOCK); | |
1154 | DRM_DEBUG("train 2 ok 1!\n"); | |
1155 | } else | |
1156 | DRM_DEBUG("train 2 fail\n"); | |
1157 | } else { | |
1158 | I915_WRITE(fdi_rx_iir_reg, temp | FDI_RX_SYMBOL_LOCK); | |
1159 | DRM_DEBUG("train 2 ok 2!\n"); | |
1160 | } | |
1161 | DRM_DEBUG("train done\n"); | |
1162 | ||
1163 | /* set transcoder timing */ | |
1164 | I915_WRITE(trans_htot_reg, I915_READ(cpu_htot_reg)); | |
1165 | I915_WRITE(trans_hblank_reg, I915_READ(cpu_hblank_reg)); | |
1166 | I915_WRITE(trans_hsync_reg, I915_READ(cpu_hsync_reg)); | |
1167 | ||
1168 | I915_WRITE(trans_vtot_reg, I915_READ(cpu_vtot_reg)); | |
1169 | I915_WRITE(trans_vblank_reg, I915_READ(cpu_vblank_reg)); | |
1170 | I915_WRITE(trans_vsync_reg, I915_READ(cpu_vsync_reg)); | |
1171 | ||
1172 | /* enable PCH transcoder */ | |
1173 | temp = I915_READ(transconf_reg); | |
1174 | I915_WRITE(transconf_reg, temp | TRANS_ENABLE); | |
1175 | I915_READ(transconf_reg); | |
1176 | ||
1177 | while ((I915_READ(transconf_reg) & TRANS_STATE_ENABLE) == 0) | |
1178 | ; | |
1179 | ||
1180 | /* enable normal */ | |
1181 | ||
1182 | temp = I915_READ(fdi_tx_reg); | |
1183 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1184 | I915_WRITE(fdi_tx_reg, temp | FDI_LINK_TRAIN_NONE | | |
1185 | FDI_TX_ENHANCE_FRAME_ENABLE); | |
1186 | I915_READ(fdi_tx_reg); | |
1187 | ||
1188 | temp = I915_READ(fdi_rx_reg); | |
1189 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1190 | I915_WRITE(fdi_rx_reg, temp | FDI_LINK_TRAIN_NONE | | |
1191 | FDI_RX_ENHANCE_FRAME_ENABLE); | |
1192 | I915_READ(fdi_rx_reg); | |
1193 | ||
1194 | /* wait one idle pattern time */ | |
1195 | udelay(100); | |
1196 | ||
1197 | intel_crtc_load_lut(crtc); | |
1198 | ||
1199 | break; | |
1200 | case DRM_MODE_DPMS_OFF: | |
1201 | DRM_DEBUG("crtc %d dpms off\n", pipe); | |
1202 | ||
1203 | /* Disable the VGA plane that we never use */ | |
1204 | I915_WRITE(CPU_VGACNTRL, VGA_DISP_DISABLE); | |
1205 | ||
1206 | /* Disable display plane */ | |
1207 | temp = I915_READ(dspcntr_reg); | |
1208 | if ((temp & DISPLAY_PLANE_ENABLE) != 0) { | |
1209 | I915_WRITE(dspcntr_reg, temp & ~DISPLAY_PLANE_ENABLE); | |
1210 | /* Flush the plane changes */ | |
1211 | I915_WRITE(dspbase_reg, I915_READ(dspbase_reg)); | |
1212 | I915_READ(dspbase_reg); | |
1213 | } | |
1214 | ||
1215 | /* disable cpu pipe, disable after all planes disabled */ | |
1216 | temp = I915_READ(pipeconf_reg); | |
1217 | if ((temp & PIPEACONF_ENABLE) != 0) { | |
1218 | I915_WRITE(pipeconf_reg, temp & ~PIPEACONF_ENABLE); | |
1219 | I915_READ(pipeconf_reg); | |
1220 | /* wait for cpu pipe off, pipe state */ | |
1221 | while ((I915_READ(pipeconf_reg) & I965_PIPECONF_ACTIVE) != 0) | |
1222 | ; | |
1223 | } else | |
1224 | DRM_DEBUG("crtc %d is disabled\n", pipe); | |
1225 | ||
1226 | /* IGDNG-A : disable cpu panel fitter ? */ | |
1227 | temp = I915_READ(pf_ctl_reg); | |
1228 | if ((temp & PF_ENABLE) != 0) { | |
1229 | I915_WRITE(pf_ctl_reg, temp & ~PF_ENABLE); | |
1230 | I915_READ(pf_ctl_reg); | |
1231 | } | |
1232 | ||
1233 | /* disable CPU FDI tx and PCH FDI rx */ | |
1234 | temp = I915_READ(fdi_tx_reg); | |
1235 | I915_WRITE(fdi_tx_reg, temp & ~FDI_TX_ENABLE); | |
1236 | I915_READ(fdi_tx_reg); | |
1237 | ||
1238 | temp = I915_READ(fdi_rx_reg); | |
1239 | I915_WRITE(fdi_rx_reg, temp & ~FDI_RX_ENABLE); | |
1240 | I915_READ(fdi_rx_reg); | |
1241 | ||
1242 | /* still set train pattern 1 */ | |
1243 | temp = I915_READ(fdi_tx_reg); | |
1244 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1245 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
1246 | I915_WRITE(fdi_tx_reg, temp); | |
1247 | ||
1248 | temp = I915_READ(fdi_rx_reg); | |
1249 | temp &= ~FDI_LINK_TRAIN_NONE; | |
1250 | temp |= FDI_LINK_TRAIN_PATTERN_1; | |
1251 | I915_WRITE(fdi_rx_reg, temp); | |
1252 | ||
1253 | /* disable PCH transcoder */ | |
1254 | temp = I915_READ(transconf_reg); | |
1255 | if ((temp & TRANS_ENABLE) != 0) { | |
1256 | I915_WRITE(transconf_reg, temp & ~TRANS_ENABLE); | |
1257 | I915_READ(transconf_reg); | |
1258 | /* wait for PCH transcoder off, transcoder state */ | |
1259 | while ((I915_READ(transconf_reg) & TRANS_STATE_ENABLE) != 0) | |
1260 | ; | |
1261 | } | |
1262 | ||
1263 | /* disable PCH DPLL */ | |
1264 | temp = I915_READ(pch_dpll_reg); | |
1265 | if ((temp & DPLL_VCO_ENABLE) != 0) { | |
1266 | I915_WRITE(pch_dpll_reg, temp & ~DPLL_VCO_ENABLE); | |
1267 | I915_READ(pch_dpll_reg); | |
1268 | } | |
1269 | ||
1270 | temp = I915_READ(fdi_rx_reg); | |
1271 | if ((temp & FDI_RX_PLL_ENABLE) != 0) { | |
1272 | temp &= ~FDI_SEL_PCDCLK; | |
1273 | temp &= ~FDI_RX_PLL_ENABLE; | |
1274 | I915_WRITE(fdi_rx_reg, temp); | |
1275 | I915_READ(fdi_rx_reg); | |
1276 | } | |
1277 | ||
1278 | /* Wait for the clocks to turn off. */ | |
1279 | udelay(150); | |
1280 | break; | |
1281 | } | |
1282 | } | |
1283 | ||
1284 | static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode) | |
79e53945 JB |
1285 | { |
1286 | struct drm_device *dev = crtc->dev; | |
79e53945 JB |
1287 | struct drm_i915_private *dev_priv = dev->dev_private; |
1288 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1289 | int pipe = intel_crtc->pipe; | |
1290 | int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B; | |
1291 | int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR; | |
1292 | int dspbase_reg = (pipe == 0) ? DSPAADDR : DSPBADDR; | |
1293 | int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF; | |
1294 | u32 temp; | |
79e53945 JB |
1295 | |
1296 | /* XXX: When our outputs are all unaware of DPMS modes other than off | |
1297 | * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC. | |
1298 | */ | |
1299 | switch (mode) { | |
1300 | case DRM_MODE_DPMS_ON: | |
1301 | case DRM_MODE_DPMS_STANDBY: | |
1302 | case DRM_MODE_DPMS_SUSPEND: | |
1303 | /* Enable the DPLL */ | |
1304 | temp = I915_READ(dpll_reg); | |
1305 | if ((temp & DPLL_VCO_ENABLE) == 0) { | |
1306 | I915_WRITE(dpll_reg, temp); | |
1307 | I915_READ(dpll_reg); | |
1308 | /* Wait for the clocks to stabilize. */ | |
1309 | udelay(150); | |
1310 | I915_WRITE(dpll_reg, temp | DPLL_VCO_ENABLE); | |
1311 | I915_READ(dpll_reg); | |
1312 | /* Wait for the clocks to stabilize. */ | |
1313 | udelay(150); | |
1314 | I915_WRITE(dpll_reg, temp | DPLL_VCO_ENABLE); | |
1315 | I915_READ(dpll_reg); | |
1316 | /* Wait for the clocks to stabilize. */ | |
1317 | udelay(150); | |
1318 | } | |
1319 | ||
1320 | /* Enable the pipe */ | |
1321 | temp = I915_READ(pipeconf_reg); | |
1322 | if ((temp & PIPEACONF_ENABLE) == 0) | |
1323 | I915_WRITE(pipeconf_reg, temp | PIPEACONF_ENABLE); | |
1324 | ||
1325 | /* Enable the plane */ | |
1326 | temp = I915_READ(dspcntr_reg); | |
1327 | if ((temp & DISPLAY_PLANE_ENABLE) == 0) { | |
1328 | I915_WRITE(dspcntr_reg, temp | DISPLAY_PLANE_ENABLE); | |
1329 | /* Flush the plane changes */ | |
1330 | I915_WRITE(dspbase_reg, I915_READ(dspbase_reg)); | |
1331 | } | |
1332 | ||
1333 | intel_crtc_load_lut(crtc); | |
1334 | ||
1335 | /* Give the overlay scaler a chance to enable if it's on this pipe */ | |
1336 | //intel_crtc_dpms_video(crtc, true); TODO | |
7662c8bd | 1337 | intel_update_watermarks(dev); |
79e53945 JB |
1338 | break; |
1339 | case DRM_MODE_DPMS_OFF: | |
7662c8bd | 1340 | intel_update_watermarks(dev); |
79e53945 JB |
1341 | /* Give the overlay scaler a chance to disable if it's on this pipe */ |
1342 | //intel_crtc_dpms_video(crtc, FALSE); TODO | |
1343 | ||
1344 | /* Disable the VGA plane that we never use */ | |
1345 | I915_WRITE(VGACNTRL, VGA_DISP_DISABLE); | |
1346 | ||
1347 | /* Disable display plane */ | |
1348 | temp = I915_READ(dspcntr_reg); | |
1349 | if ((temp & DISPLAY_PLANE_ENABLE) != 0) { | |
1350 | I915_WRITE(dspcntr_reg, temp & ~DISPLAY_PLANE_ENABLE); | |
1351 | /* Flush the plane changes */ | |
1352 | I915_WRITE(dspbase_reg, I915_READ(dspbase_reg)); | |
1353 | I915_READ(dspbase_reg); | |
1354 | } | |
1355 | ||
1356 | if (!IS_I9XX(dev)) { | |
1357 | /* Wait for vblank for the disable to take effect */ | |
1358 | intel_wait_for_vblank(dev); | |
1359 | } | |
1360 | ||
1361 | /* Next, disable display pipes */ | |
1362 | temp = I915_READ(pipeconf_reg); | |
1363 | if ((temp & PIPEACONF_ENABLE) != 0) { | |
1364 | I915_WRITE(pipeconf_reg, temp & ~PIPEACONF_ENABLE); | |
1365 | I915_READ(pipeconf_reg); | |
1366 | } | |
1367 | ||
1368 | /* Wait for vblank for the disable to take effect. */ | |
1369 | intel_wait_for_vblank(dev); | |
1370 | ||
1371 | temp = I915_READ(dpll_reg); | |
1372 | if ((temp & DPLL_VCO_ENABLE) != 0) { | |
1373 | I915_WRITE(dpll_reg, temp & ~DPLL_VCO_ENABLE); | |
1374 | I915_READ(dpll_reg); | |
1375 | } | |
1376 | ||
1377 | /* Wait for the clocks to turn off. */ | |
1378 | udelay(150); | |
1379 | break; | |
1380 | } | |
2c07245f ZW |
1381 | } |
1382 | ||
1383 | /** | |
1384 | * Sets the power management mode of the pipe and plane. | |
1385 | * | |
1386 | * This code should probably grow support for turning the cursor off and back | |
1387 | * on appropriately at the same time as we're turning the pipe off/on. | |
1388 | */ | |
1389 | static void intel_crtc_dpms(struct drm_crtc *crtc, int mode) | |
1390 | { | |
1391 | struct drm_device *dev = crtc->dev; | |
1392 | struct drm_i915_master_private *master_priv; | |
1393 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1394 | int pipe = intel_crtc->pipe; | |
1395 | bool enabled; | |
1396 | ||
1397 | if (IS_IGDNG(dev)) | |
1398 | igdng_crtc_dpms(crtc, mode); | |
1399 | else | |
1400 | i9xx_crtc_dpms(crtc, mode); | |
79e53945 JB |
1401 | |
1402 | if (!dev->primary->master) | |
1403 | return; | |
1404 | ||
1405 | master_priv = dev->primary->master->driver_priv; | |
1406 | if (!master_priv->sarea_priv) | |
1407 | return; | |
1408 | ||
1409 | enabled = crtc->enabled && mode != DRM_MODE_DPMS_OFF; | |
1410 | ||
1411 | switch (pipe) { | |
1412 | case 0: | |
1413 | master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0; | |
1414 | master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0; | |
1415 | break; | |
1416 | case 1: | |
1417 | master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0; | |
1418 | master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0; | |
1419 | break; | |
1420 | default: | |
1421 | DRM_ERROR("Can't update pipe %d in SAREA\n", pipe); | |
1422 | break; | |
1423 | } | |
1424 | ||
1425 | intel_crtc->dpms_mode = mode; | |
1426 | } | |
1427 | ||
1428 | static void intel_crtc_prepare (struct drm_crtc *crtc) | |
1429 | { | |
1430 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
1431 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF); | |
1432 | } | |
1433 | ||
1434 | static void intel_crtc_commit (struct drm_crtc *crtc) | |
1435 | { | |
1436 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
1437 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); | |
1438 | } | |
1439 | ||
1440 | void intel_encoder_prepare (struct drm_encoder *encoder) | |
1441 | { | |
1442 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
1443 | /* lvds has its own version of prepare see intel_lvds_prepare */ | |
1444 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_OFF); | |
1445 | } | |
1446 | ||
1447 | void intel_encoder_commit (struct drm_encoder *encoder) | |
1448 | { | |
1449 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
1450 | /* lvds has its own version of commit see intel_lvds_commit */ | |
1451 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); | |
1452 | } | |
1453 | ||
1454 | static bool intel_crtc_mode_fixup(struct drm_crtc *crtc, | |
1455 | struct drm_display_mode *mode, | |
1456 | struct drm_display_mode *adjusted_mode) | |
1457 | { | |
2c07245f ZW |
1458 | struct drm_device *dev = crtc->dev; |
1459 | if (IS_IGDNG(dev)) { | |
1460 | /* FDI link clock is fixed at 2.7G */ | |
1461 | if (mode->clock * 3 > 27000 * 4) | |
1462 | return MODE_CLOCK_HIGH; | |
1463 | } | |
79e53945 JB |
1464 | return true; |
1465 | } | |
1466 | ||
1467 | ||
1468 | /** Returns the core display clock speed for i830 - i945 */ | |
1469 | static int intel_get_core_clock_speed(struct drm_device *dev) | |
1470 | { | |
1471 | ||
1472 | /* Core clock values taken from the published datasheets. | |
1473 | * The 830 may go up to 166 Mhz, which we should check. | |
1474 | */ | |
1475 | if (IS_I945G(dev)) | |
1476 | return 400000; | |
1477 | else if (IS_I915G(dev)) | |
1478 | return 333000; | |
2177832f | 1479 | else if (IS_I945GM(dev) || IS_845G(dev) || IS_IGDGM(dev)) |
79e53945 JB |
1480 | return 200000; |
1481 | else if (IS_I915GM(dev)) { | |
1482 | u16 gcfgc = 0; | |
1483 | ||
1484 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); | |
1485 | ||
1486 | if (gcfgc & GC_LOW_FREQUENCY_ENABLE) | |
1487 | return 133000; | |
1488 | else { | |
1489 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { | |
1490 | case GC_DISPLAY_CLOCK_333_MHZ: | |
1491 | return 333000; | |
1492 | default: | |
1493 | case GC_DISPLAY_CLOCK_190_200_MHZ: | |
1494 | return 190000; | |
1495 | } | |
1496 | } | |
1497 | } else if (IS_I865G(dev)) | |
1498 | return 266000; | |
1499 | else if (IS_I855(dev)) { | |
1500 | u16 hpllcc = 0; | |
1501 | /* Assume that the hardware is in the high speed state. This | |
1502 | * should be the default. | |
1503 | */ | |
1504 | switch (hpllcc & GC_CLOCK_CONTROL_MASK) { | |
1505 | case GC_CLOCK_133_200: | |
1506 | case GC_CLOCK_100_200: | |
1507 | return 200000; | |
1508 | case GC_CLOCK_166_250: | |
1509 | return 250000; | |
1510 | case GC_CLOCK_100_133: | |
1511 | return 133000; | |
1512 | } | |
1513 | } else /* 852, 830 */ | |
1514 | return 133000; | |
1515 | ||
1516 | return 0; /* Silence gcc warning */ | |
1517 | } | |
1518 | ||
79e53945 JB |
1519 | /** |
1520 | * Return the pipe currently connected to the panel fitter, | |
1521 | * or -1 if the panel fitter is not present or not in use | |
1522 | */ | |
1523 | static int intel_panel_fitter_pipe (struct drm_device *dev) | |
1524 | { | |
1525 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1526 | u32 pfit_control; | |
1527 | ||
1528 | /* i830 doesn't have a panel fitter */ | |
1529 | if (IS_I830(dev)) | |
1530 | return -1; | |
1531 | ||
1532 | pfit_control = I915_READ(PFIT_CONTROL); | |
1533 | ||
1534 | /* See if the panel fitter is in use */ | |
1535 | if ((pfit_control & PFIT_ENABLE) == 0) | |
1536 | return -1; | |
1537 | ||
1538 | /* 965 can place panel fitter on either pipe */ | |
1539 | if (IS_I965G(dev)) | |
1540 | return (pfit_control >> 29) & 0x3; | |
1541 | ||
1542 | /* older chips can only use pipe 1 */ | |
1543 | return 1; | |
1544 | } | |
1545 | ||
2c07245f ZW |
1546 | struct fdi_m_n { |
1547 | u32 tu; | |
1548 | u32 gmch_m; | |
1549 | u32 gmch_n; | |
1550 | u32 link_m; | |
1551 | u32 link_n; | |
1552 | }; | |
1553 | ||
1554 | static void | |
1555 | fdi_reduce_ratio(u32 *num, u32 *den) | |
1556 | { | |
1557 | while (*num > 0xffffff || *den > 0xffffff) { | |
1558 | *num >>= 1; | |
1559 | *den >>= 1; | |
1560 | } | |
1561 | } | |
1562 | ||
1563 | #define DATA_N 0x800000 | |
1564 | #define LINK_N 0x80000 | |
1565 | ||
1566 | static void | |
1567 | igdng_compute_m_n(int bytes_per_pixel, int nlanes, | |
1568 | int pixel_clock, int link_clock, | |
1569 | struct fdi_m_n *m_n) | |
1570 | { | |
1571 | u64 temp; | |
1572 | ||
1573 | m_n->tu = 64; /* default size */ | |
1574 | ||
1575 | temp = (u64) DATA_N * pixel_clock; | |
1576 | temp = div_u64(temp, link_clock); | |
956dba3c | 1577 | m_n->gmch_m = div_u64(temp * bytes_per_pixel, nlanes); |
2c07245f ZW |
1578 | m_n->gmch_n = DATA_N; |
1579 | fdi_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n); | |
1580 | ||
1581 | temp = (u64) LINK_N * pixel_clock; | |
1582 | m_n->link_m = div_u64(temp, link_clock); | |
1583 | m_n->link_n = LINK_N; | |
1584 | fdi_reduce_ratio(&m_n->link_m, &m_n->link_n); | |
1585 | } | |
1586 | ||
1587 | ||
7662c8bd SL |
1588 | struct intel_watermark_params { |
1589 | unsigned long fifo_size; | |
1590 | unsigned long max_wm; | |
1591 | unsigned long default_wm; | |
1592 | unsigned long guard_size; | |
1593 | unsigned long cacheline_size; | |
1594 | }; | |
1595 | ||
1596 | /* IGD has different values for various configs */ | |
1597 | static struct intel_watermark_params igd_display_wm = { | |
1598 | IGD_DISPLAY_FIFO, | |
1599 | IGD_MAX_WM, | |
1600 | IGD_DFT_WM, | |
1601 | IGD_GUARD_WM, | |
1602 | IGD_FIFO_LINE_SIZE | |
1603 | }; | |
1604 | static struct intel_watermark_params igd_display_hplloff_wm = { | |
1605 | IGD_DISPLAY_FIFO, | |
1606 | IGD_MAX_WM, | |
1607 | IGD_DFT_HPLLOFF_WM, | |
1608 | IGD_GUARD_WM, | |
1609 | IGD_FIFO_LINE_SIZE | |
1610 | }; | |
1611 | static struct intel_watermark_params igd_cursor_wm = { | |
1612 | IGD_CURSOR_FIFO, | |
1613 | IGD_CURSOR_MAX_WM, | |
1614 | IGD_CURSOR_DFT_WM, | |
1615 | IGD_CURSOR_GUARD_WM, | |
1616 | IGD_FIFO_LINE_SIZE, | |
1617 | }; | |
1618 | static struct intel_watermark_params igd_cursor_hplloff_wm = { | |
1619 | IGD_CURSOR_FIFO, | |
1620 | IGD_CURSOR_MAX_WM, | |
1621 | IGD_CURSOR_DFT_WM, | |
1622 | IGD_CURSOR_GUARD_WM, | |
1623 | IGD_FIFO_LINE_SIZE | |
1624 | }; | |
1625 | static struct intel_watermark_params i945_wm_info = { | |
dff33cfc | 1626 | I945_FIFO_SIZE, |
7662c8bd SL |
1627 | I915_MAX_WM, |
1628 | 1, | |
dff33cfc JB |
1629 | 2, |
1630 | I915_FIFO_LINE_SIZE | |
7662c8bd SL |
1631 | }; |
1632 | static struct intel_watermark_params i915_wm_info = { | |
dff33cfc | 1633 | I915_FIFO_SIZE, |
7662c8bd SL |
1634 | I915_MAX_WM, |
1635 | 1, | |
dff33cfc | 1636 | 2, |
7662c8bd SL |
1637 | I915_FIFO_LINE_SIZE |
1638 | }; | |
1639 | static struct intel_watermark_params i855_wm_info = { | |
1640 | I855GM_FIFO_SIZE, | |
1641 | I915_MAX_WM, | |
1642 | 1, | |
dff33cfc | 1643 | 2, |
7662c8bd SL |
1644 | I830_FIFO_LINE_SIZE |
1645 | }; | |
1646 | static struct intel_watermark_params i830_wm_info = { | |
1647 | I830_FIFO_SIZE, | |
1648 | I915_MAX_WM, | |
1649 | 1, | |
dff33cfc | 1650 | 2, |
7662c8bd SL |
1651 | I830_FIFO_LINE_SIZE |
1652 | }; | |
1653 | ||
dff33cfc JB |
1654 | /** |
1655 | * intel_calculate_wm - calculate watermark level | |
1656 | * @clock_in_khz: pixel clock | |
1657 | * @wm: chip FIFO params | |
1658 | * @pixel_size: display pixel size | |
1659 | * @latency_ns: memory latency for the platform | |
1660 | * | |
1661 | * Calculate the watermark level (the level at which the display plane will | |
1662 | * start fetching from memory again). Each chip has a different display | |
1663 | * FIFO size and allocation, so the caller needs to figure that out and pass | |
1664 | * in the correct intel_watermark_params structure. | |
1665 | * | |
1666 | * As the pixel clock runs, the FIFO will be drained at a rate that depends | |
1667 | * on the pixel size. When it reaches the watermark level, it'll start | |
1668 | * fetching FIFO line sized based chunks from memory until the FIFO fills | |
1669 | * past the watermark point. If the FIFO drains completely, a FIFO underrun | |
1670 | * will occur, and a display engine hang could result. | |
1671 | */ | |
7662c8bd SL |
1672 | static unsigned long intel_calculate_wm(unsigned long clock_in_khz, |
1673 | struct intel_watermark_params *wm, | |
1674 | int pixel_size, | |
1675 | unsigned long latency_ns) | |
1676 | { | |
dff33cfc JB |
1677 | unsigned long entries_required, wm_size; |
1678 | ||
1679 | entries_required = (clock_in_khz * pixel_size * latency_ns) / 1000000; | |
1680 | entries_required /= wm->cacheline_size; | |
7662c8bd | 1681 | |
dff33cfc JB |
1682 | DRM_DEBUG("FIFO entries required for mode: %d\n", entries_required); |
1683 | ||
1684 | wm_size = wm->fifo_size - (entries_required + wm->guard_size); | |
1685 | ||
1686 | DRM_DEBUG("FIFO watermark level: %d\n", wm_size); | |
7662c8bd SL |
1687 | |
1688 | if (wm_size > wm->max_wm) | |
1689 | wm_size = wm->max_wm; | |
1690 | if (wm_size == 0) | |
1691 | wm_size = wm->default_wm; | |
1692 | return wm_size; | |
1693 | } | |
1694 | ||
1695 | struct cxsr_latency { | |
1696 | int is_desktop; | |
1697 | unsigned long fsb_freq; | |
1698 | unsigned long mem_freq; | |
1699 | unsigned long display_sr; | |
1700 | unsigned long display_hpll_disable; | |
1701 | unsigned long cursor_sr; | |
1702 | unsigned long cursor_hpll_disable; | |
1703 | }; | |
1704 | ||
1705 | static struct cxsr_latency cxsr_latency_table[] = { | |
1706 | {1, 800, 400, 3382, 33382, 3983, 33983}, /* DDR2-400 SC */ | |
1707 | {1, 800, 667, 3354, 33354, 3807, 33807}, /* DDR2-667 SC */ | |
1708 | {1, 800, 800, 3347, 33347, 3763, 33763}, /* DDR2-800 SC */ | |
1709 | ||
1710 | {1, 667, 400, 3400, 33400, 4021, 34021}, /* DDR2-400 SC */ | |
1711 | {1, 667, 667, 3372, 33372, 3845, 33845}, /* DDR2-667 SC */ | |
1712 | {1, 667, 800, 3386, 33386, 3822, 33822}, /* DDR2-800 SC */ | |
1713 | ||
1714 | {1, 400, 400, 3472, 33472, 4173, 34173}, /* DDR2-400 SC */ | |
1715 | {1, 400, 667, 3443, 33443, 3996, 33996}, /* DDR2-667 SC */ | |
1716 | {1, 400, 800, 3430, 33430, 3946, 33946}, /* DDR2-800 SC */ | |
1717 | ||
1718 | {0, 800, 400, 3438, 33438, 4065, 34065}, /* DDR2-400 SC */ | |
1719 | {0, 800, 667, 3410, 33410, 3889, 33889}, /* DDR2-667 SC */ | |
1720 | {0, 800, 800, 3403, 33403, 3845, 33845}, /* DDR2-800 SC */ | |
1721 | ||
1722 | {0, 667, 400, 3456, 33456, 4103, 34106}, /* DDR2-400 SC */ | |
1723 | {0, 667, 667, 3428, 33428, 3927, 33927}, /* DDR2-667 SC */ | |
1724 | {0, 667, 800, 3443, 33443, 3905, 33905}, /* DDR2-800 SC */ | |
1725 | ||
1726 | {0, 400, 400, 3528, 33528, 4255, 34255}, /* DDR2-400 SC */ | |
1727 | {0, 400, 667, 3500, 33500, 4079, 34079}, /* DDR2-667 SC */ | |
1728 | {0, 400, 800, 3487, 33487, 4029, 34029}, /* DDR2-800 SC */ | |
1729 | }; | |
1730 | ||
1731 | static struct cxsr_latency *intel_get_cxsr_latency(int is_desktop, int fsb, | |
1732 | int mem) | |
1733 | { | |
1734 | int i; | |
1735 | struct cxsr_latency *latency; | |
1736 | ||
1737 | if (fsb == 0 || mem == 0) | |
1738 | return NULL; | |
1739 | ||
1740 | for (i = 0; i < ARRAY_SIZE(cxsr_latency_table); i++) { | |
1741 | latency = &cxsr_latency_table[i]; | |
1742 | if (is_desktop == latency->is_desktop && | |
1743 | fsb == latency->fsb_freq && mem == latency->mem_freq) | |
1744 | break; | |
1745 | } | |
1746 | if (i >= ARRAY_SIZE(cxsr_latency_table)) { | |
1747 | DRM_DEBUG("Unknown FSB/MEM found, disable CxSR\n"); | |
1748 | return NULL; | |
1749 | } | |
1750 | return latency; | |
1751 | } | |
1752 | ||
1753 | static void igd_disable_cxsr(struct drm_device *dev) | |
1754 | { | |
1755 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1756 | u32 reg; | |
1757 | ||
1758 | /* deactivate cxsr */ | |
1759 | reg = I915_READ(DSPFW3); | |
1760 | reg &= ~(IGD_SELF_REFRESH_EN); | |
1761 | I915_WRITE(DSPFW3, reg); | |
1762 | DRM_INFO("Big FIFO is disabled\n"); | |
1763 | } | |
1764 | ||
1765 | static void igd_enable_cxsr(struct drm_device *dev, unsigned long clock, | |
1766 | int pixel_size) | |
1767 | { | |
1768 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1769 | u32 reg; | |
1770 | unsigned long wm; | |
1771 | struct cxsr_latency *latency; | |
1772 | ||
1773 | latency = intel_get_cxsr_latency(IS_IGDG(dev), dev_priv->fsb_freq, | |
1774 | dev_priv->mem_freq); | |
1775 | if (!latency) { | |
1776 | DRM_DEBUG("Unknown FSB/MEM found, disable CxSR\n"); | |
1777 | igd_disable_cxsr(dev); | |
1778 | return; | |
1779 | } | |
1780 | ||
1781 | /* Display SR */ | |
1782 | wm = intel_calculate_wm(clock, &igd_display_wm, pixel_size, | |
1783 | latency->display_sr); | |
1784 | reg = I915_READ(DSPFW1); | |
1785 | reg &= 0x7fffff; | |
1786 | reg |= wm << 23; | |
1787 | I915_WRITE(DSPFW1, reg); | |
1788 | DRM_DEBUG("DSPFW1 register is %x\n", reg); | |
1789 | ||
1790 | /* cursor SR */ | |
1791 | wm = intel_calculate_wm(clock, &igd_cursor_wm, pixel_size, | |
1792 | latency->cursor_sr); | |
1793 | reg = I915_READ(DSPFW3); | |
1794 | reg &= ~(0x3f << 24); | |
1795 | reg |= (wm & 0x3f) << 24; | |
1796 | I915_WRITE(DSPFW3, reg); | |
1797 | ||
1798 | /* Display HPLL off SR */ | |
1799 | wm = intel_calculate_wm(clock, &igd_display_hplloff_wm, | |
1800 | latency->display_hpll_disable, I915_FIFO_LINE_SIZE); | |
1801 | reg = I915_READ(DSPFW3); | |
1802 | reg &= 0xfffffe00; | |
1803 | reg |= wm & 0x1ff; | |
1804 | I915_WRITE(DSPFW3, reg); | |
1805 | ||
1806 | /* cursor HPLL off SR */ | |
1807 | wm = intel_calculate_wm(clock, &igd_cursor_hplloff_wm, pixel_size, | |
1808 | latency->cursor_hpll_disable); | |
1809 | reg = I915_READ(DSPFW3); | |
1810 | reg &= ~(0x3f << 16); | |
1811 | reg |= (wm & 0x3f) << 16; | |
1812 | I915_WRITE(DSPFW3, reg); | |
1813 | DRM_DEBUG("DSPFW3 register is %x\n", reg); | |
1814 | ||
1815 | /* activate cxsr */ | |
1816 | reg = I915_READ(DSPFW3); | |
1817 | reg |= IGD_SELF_REFRESH_EN; | |
1818 | I915_WRITE(DSPFW3, reg); | |
1819 | ||
1820 | DRM_INFO("Big FIFO is enabled\n"); | |
1821 | ||
1822 | return; | |
1823 | } | |
1824 | ||
dff33cfc | 1825 | const static int latency_ns = 3000; /* default for non-igd platforms */ |
7662c8bd | 1826 | |
dff33cfc JB |
1827 | static int intel_get_fifo_size(struct drm_device *dev, int plane) |
1828 | { | |
1829 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1830 | uint32_t dsparb = I915_READ(DSPARB); | |
1831 | int size; | |
1832 | ||
1833 | if (IS_I9XX(dev)) { | |
1834 | if (plane == 0) | |
1835 | size = dsparb & 0x7f; | |
1836 | else | |
1837 | size = ((dsparb >> DSPARB_CSTART_SHIFT) & 0x7f) - | |
1838 | (dsparb & 0x7f); | |
1839 | } else if (IS_I85X(dev)) { | |
1840 | if (plane == 0) | |
1841 | size = dsparb & 0x1ff; | |
1842 | else | |
1843 | size = ((dsparb >> DSPARB_BEND_SHIFT) & 0x1ff) - | |
1844 | (dsparb & 0x1ff); | |
1845 | size >>= 1; /* Convert to cachelines */ | |
1846 | } else { | |
1847 | size = dsparb & 0x7f; | |
1848 | size >>= 1; /* Convert to cachelines */ | |
1849 | } | |
1850 | ||
1851 | DRM_DEBUG("FIFO size - (0x%08x) %s: %d\n", dsparb, plane ? "B" : "A", | |
1852 | size); | |
1853 | ||
1854 | return size; | |
1855 | } | |
7662c8bd SL |
1856 | |
1857 | static void i965_update_wm(struct drm_device *dev) | |
1858 | { | |
1859 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1860 | ||
1861 | DRM_DEBUG("Setting FIFO watermarks - A: 8, B: 8, C: 8, SR 8\n"); | |
1862 | ||
1863 | /* 965 has limitations... */ | |
1864 | I915_WRITE(DSPFW1, (8 << 16) | (8 << 8) | (8 << 0)); | |
1865 | I915_WRITE(DSPFW2, (8 << 8) | (8 << 0)); | |
1866 | } | |
1867 | ||
1868 | static void i9xx_update_wm(struct drm_device *dev, int planea_clock, | |
1869 | int planeb_clock, int sr_hdisplay, int pixel_size) | |
1870 | { | |
1871 | struct drm_i915_private *dev_priv = dev->dev_private; | |
dff33cfc JB |
1872 | uint32_t fwater_lo; |
1873 | uint32_t fwater_hi; | |
1874 | int total_size, cacheline_size, cwm, srwm = 1; | |
1875 | int planea_wm, planeb_wm; | |
1876 | struct intel_watermark_params planea_params, planeb_params; | |
7662c8bd SL |
1877 | unsigned long line_time_us; |
1878 | int sr_clock, sr_entries = 0; | |
1879 | ||
dff33cfc | 1880 | /* Create copies of the base settings for each pipe */ |
7662c8bd | 1881 | if (IS_I965GM(dev) || IS_I945GM(dev)) |
dff33cfc | 1882 | planea_params = planeb_params = i945_wm_info; |
7662c8bd | 1883 | else if (IS_I9XX(dev)) |
dff33cfc | 1884 | planea_params = planeb_params = i915_wm_info; |
7662c8bd | 1885 | else |
dff33cfc | 1886 | planea_params = planeb_params = i855_wm_info; |
7662c8bd | 1887 | |
dff33cfc JB |
1888 | /* Grab a couple of global values before we overwrite them */ |
1889 | total_size = planea_params.fifo_size; | |
1890 | cacheline_size = planea_params.cacheline_size; | |
7662c8bd | 1891 | |
dff33cfc JB |
1892 | /* Update per-plane FIFO sizes */ |
1893 | planea_params.fifo_size = intel_get_fifo_size(dev, 0); | |
1894 | planeb_params.fifo_size = intel_get_fifo_size(dev, 1); | |
7662c8bd | 1895 | |
dff33cfc JB |
1896 | planea_wm = intel_calculate_wm(planea_clock, &planea_params, |
1897 | pixel_size, latency_ns); | |
1898 | planeb_wm = intel_calculate_wm(planeb_clock, &planeb_params, | |
1899 | pixel_size, latency_ns); | |
1900 | DRM_DEBUG("FIFO watermarks - A: %d, B: %d\n", planea_wm, planeb_wm); | |
7662c8bd SL |
1901 | |
1902 | /* | |
1903 | * Overlay gets an aggressive default since video jitter is bad. | |
1904 | */ | |
1905 | cwm = 2; | |
1906 | ||
dff33cfc | 1907 | /* Calc sr entries for one plane configs */ |
7662c8bd | 1908 | if (!planea_clock || !planeb_clock) { |
dff33cfc JB |
1909 | /* self-refresh has much higher latency */ |
1910 | const static int sr_latency_ns = 6000; | |
1911 | ||
7662c8bd | 1912 | sr_clock = planea_clock ? planea_clock : planeb_clock; |
dff33cfc JB |
1913 | line_time_us = ((sr_hdisplay * 1000) / sr_clock); |
1914 | ||
1915 | /* Use ns/us then divide to preserve precision */ | |
1916 | sr_entries = (((sr_latency_ns / line_time_us) + 1) * | |
1917 | pixel_size * sr_hdisplay) / 1000; | |
1918 | sr_entries = roundup(sr_entries / cacheline_size, 1); | |
1919 | DRM_DEBUG("self-refresh entries: %d\n", sr_entries); | |
1920 | srwm = total_size - sr_entries; | |
1921 | if (srwm < 0) | |
1922 | srwm = 1; | |
7662c8bd SL |
1923 | } |
1924 | ||
1925 | DRM_DEBUG("Setting FIFO watermarks - A: %d, B: %d, C: %d, SR %d\n", | |
dff33cfc | 1926 | planea_wm, planeb_wm, cwm, srwm); |
7662c8bd | 1927 | |
dff33cfc JB |
1928 | fwater_lo = ((planeb_wm & 0x3f) << 16) | (planea_wm & 0x3f); |
1929 | fwater_hi = (cwm & 0x1f); | |
1930 | ||
1931 | /* Set request length to 8 cachelines per fetch */ | |
1932 | fwater_lo = fwater_lo | (1 << 24) | (1 << 8); | |
1933 | fwater_hi = fwater_hi | (1 << 8); | |
7662c8bd SL |
1934 | |
1935 | I915_WRITE(FW_BLC, fwater_lo); | |
1936 | I915_WRITE(FW_BLC2, fwater_hi); | |
1937 | if (IS_I9XX(dev)) | |
dff33cfc | 1938 | I915_WRITE(FW_BLC_SELF, (srwm & 0x3f)); |
7662c8bd SL |
1939 | } |
1940 | ||
1941 | static void i830_update_wm(struct drm_device *dev, int planea_clock, | |
1942 | int pixel_size) | |
1943 | { | |
1944 | struct drm_i915_private *dev_priv = dev->dev_private; | |
7662c8bd | 1945 | uint32_t fwater_lo = I915_READ(FW_BLC) & MM_FIFO_WATERMARK; |
dff33cfc | 1946 | int planea_wm; |
7662c8bd | 1947 | |
dff33cfc | 1948 | i830_wm_info.fifo_size = intel_get_fifo_size(dev, 0); |
7662c8bd | 1949 | |
dff33cfc JB |
1950 | planea_wm = intel_calculate_wm(planea_clock, &i830_wm_info, |
1951 | pixel_size, latency_ns); | |
1952 | fwater_lo = fwater_lo | planea_wm; | |
7662c8bd SL |
1953 | |
1954 | I915_WRITE(FW_BLC, fwater_lo); | |
1955 | } | |
1956 | ||
1957 | /** | |
1958 | * intel_update_watermarks - update FIFO watermark values based on current modes | |
1959 | * | |
1960 | * Calculate watermark values for the various WM regs based on current mode | |
1961 | * and plane configuration. | |
1962 | * | |
1963 | * There are several cases to deal with here: | |
1964 | * - normal (i.e. non-self-refresh) | |
1965 | * - self-refresh (SR) mode | |
1966 | * - lines are large relative to FIFO size (buffer can hold up to 2) | |
1967 | * - lines are small relative to FIFO size (buffer can hold more than 2 | |
1968 | * lines), so need to account for TLB latency | |
1969 | * | |
1970 | * The normal calculation is: | |
1971 | * watermark = dotclock * bytes per pixel * latency | |
1972 | * where latency is platform & configuration dependent (we assume pessimal | |
1973 | * values here). | |
1974 | * | |
1975 | * The SR calculation is: | |
1976 | * watermark = (trunc(latency/line time)+1) * surface width * | |
1977 | * bytes per pixel | |
1978 | * where | |
1979 | * line time = htotal / dotclock | |
1980 | * and latency is assumed to be high, as above. | |
1981 | * | |
1982 | * The final value programmed to the register should always be rounded up, | |
1983 | * and include an extra 2 entries to account for clock crossings. | |
1984 | * | |
1985 | * We don't use the sprite, so we can ignore that. And on Crestline we have | |
1986 | * to set the non-SR watermarks to 8. | |
1987 | */ | |
1988 | static void intel_update_watermarks(struct drm_device *dev) | |
1989 | { | |
1990 | struct drm_crtc *crtc; | |
1991 | struct intel_crtc *intel_crtc; | |
1992 | int sr_hdisplay = 0; | |
1993 | unsigned long planea_clock = 0, planeb_clock = 0, sr_clock = 0; | |
1994 | int enabled = 0, pixel_size = 0; | |
1995 | ||
1996 | if (DSPARB_HWCONTROL(dev)) | |
1997 | return; | |
1998 | ||
1999 | /* Get the clock config from both planes */ | |
2000 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
2001 | intel_crtc = to_intel_crtc(crtc); | |
2002 | if (crtc->enabled) { | |
2003 | enabled++; | |
2004 | if (intel_crtc->plane == 0) { | |
2005 | DRM_DEBUG("plane A (pipe %d) clock: %d\n", | |
2006 | intel_crtc->pipe, crtc->mode.clock); | |
2007 | planea_clock = crtc->mode.clock; | |
2008 | } else { | |
2009 | DRM_DEBUG("plane B (pipe %d) clock: %d\n", | |
2010 | intel_crtc->pipe, crtc->mode.clock); | |
2011 | planeb_clock = crtc->mode.clock; | |
2012 | } | |
2013 | sr_hdisplay = crtc->mode.hdisplay; | |
2014 | sr_clock = crtc->mode.clock; | |
2015 | if (crtc->fb) | |
2016 | pixel_size = crtc->fb->bits_per_pixel / 8; | |
2017 | else | |
2018 | pixel_size = 4; /* by default */ | |
2019 | } | |
2020 | } | |
2021 | ||
2022 | if (enabled <= 0) | |
2023 | return; | |
2024 | ||
dff33cfc | 2025 | /* Single plane configs can enable self refresh */ |
7662c8bd SL |
2026 | if (enabled == 1 && IS_IGD(dev)) |
2027 | igd_enable_cxsr(dev, sr_clock, pixel_size); | |
2028 | else if (IS_IGD(dev)) | |
2029 | igd_disable_cxsr(dev); | |
2030 | ||
2031 | if (IS_I965G(dev)) | |
2032 | i965_update_wm(dev); | |
2033 | else if (IS_I9XX(dev) || IS_MOBILE(dev)) | |
2034 | i9xx_update_wm(dev, planea_clock, planeb_clock, sr_hdisplay, | |
2035 | pixel_size); | |
2036 | else | |
2037 | i830_update_wm(dev, planea_clock, pixel_size); | |
2038 | } | |
2039 | ||
5c3b82e2 CW |
2040 | static int intel_crtc_mode_set(struct drm_crtc *crtc, |
2041 | struct drm_display_mode *mode, | |
2042 | struct drm_display_mode *adjusted_mode, | |
2043 | int x, int y, | |
2044 | struct drm_framebuffer *old_fb) | |
79e53945 JB |
2045 | { |
2046 | struct drm_device *dev = crtc->dev; | |
2047 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2048 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2049 | int pipe = intel_crtc->pipe; | |
2050 | int fp_reg = (pipe == 0) ? FPA0 : FPB0; | |
2051 | int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B; | |
2052 | int dpll_md_reg = (intel_crtc->pipe == 0) ? DPLL_A_MD : DPLL_B_MD; | |
2053 | int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR; | |
2054 | int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF; | |
2055 | int htot_reg = (pipe == 0) ? HTOTAL_A : HTOTAL_B; | |
2056 | int hblank_reg = (pipe == 0) ? HBLANK_A : HBLANK_B; | |
2057 | int hsync_reg = (pipe == 0) ? HSYNC_A : HSYNC_B; | |
2058 | int vtot_reg = (pipe == 0) ? VTOTAL_A : VTOTAL_B; | |
2059 | int vblank_reg = (pipe == 0) ? VBLANK_A : VBLANK_B; | |
2060 | int vsync_reg = (pipe == 0) ? VSYNC_A : VSYNC_B; | |
2061 | int dspsize_reg = (pipe == 0) ? DSPASIZE : DSPBSIZE; | |
2062 | int dsppos_reg = (pipe == 0) ? DSPAPOS : DSPBPOS; | |
2063 | int pipesrc_reg = (pipe == 0) ? PIPEASRC : PIPEBSRC; | |
43565a06 | 2064 | int refclk, num_outputs = 0; |
79e53945 JB |
2065 | intel_clock_t clock; |
2066 | u32 dpll = 0, fp = 0, dspcntr, pipeconf; | |
2067 | bool ok, is_sdvo = false, is_dvo = false; | |
a4fc5ed6 | 2068 | bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false; |
79e53945 JB |
2069 | struct drm_mode_config *mode_config = &dev->mode_config; |
2070 | struct drm_connector *connector; | |
d4906093 | 2071 | const intel_limit_t *limit; |
5c3b82e2 | 2072 | int ret; |
2c07245f ZW |
2073 | struct fdi_m_n m_n = {0}; |
2074 | int data_m1_reg = (pipe == 0) ? PIPEA_DATA_M1 : PIPEB_DATA_M1; | |
2075 | int data_n1_reg = (pipe == 0) ? PIPEA_DATA_N1 : PIPEB_DATA_N1; | |
2076 | int link_m1_reg = (pipe == 0) ? PIPEA_LINK_M1 : PIPEB_LINK_M1; | |
2077 | int link_n1_reg = (pipe == 0) ? PIPEA_LINK_N1 : PIPEB_LINK_N1; | |
2078 | int pch_fp_reg = (pipe == 0) ? PCH_FPA0 : PCH_FPB0; | |
2079 | int pch_dpll_reg = (pipe == 0) ? PCH_DPLL_A : PCH_DPLL_B; | |
2080 | int fdi_rx_reg = (pipe == 0) ? FDI_RXA_CTL : FDI_RXB_CTL; | |
541998a1 | 2081 | int lvds_reg = LVDS; |
2c07245f ZW |
2082 | u32 temp; |
2083 | int sdvo_pixel_multiply; | |
79e53945 JB |
2084 | |
2085 | drm_vblank_pre_modeset(dev, pipe); | |
2086 | ||
2087 | list_for_each_entry(connector, &mode_config->connector_list, head) { | |
2088 | struct intel_output *intel_output = to_intel_output(connector); | |
2089 | ||
2090 | if (!connector->encoder || connector->encoder->crtc != crtc) | |
2091 | continue; | |
2092 | ||
2093 | switch (intel_output->type) { | |
2094 | case INTEL_OUTPUT_LVDS: | |
2095 | is_lvds = true; | |
2096 | break; | |
2097 | case INTEL_OUTPUT_SDVO: | |
7d57382e | 2098 | case INTEL_OUTPUT_HDMI: |
79e53945 | 2099 | is_sdvo = true; |
e2f0ba97 JB |
2100 | if (intel_output->needs_tv_clock) |
2101 | is_tv = true; | |
79e53945 JB |
2102 | break; |
2103 | case INTEL_OUTPUT_DVO: | |
2104 | is_dvo = true; | |
2105 | break; | |
2106 | case INTEL_OUTPUT_TVOUT: | |
2107 | is_tv = true; | |
2108 | break; | |
2109 | case INTEL_OUTPUT_ANALOG: | |
2110 | is_crt = true; | |
2111 | break; | |
a4fc5ed6 KP |
2112 | case INTEL_OUTPUT_DISPLAYPORT: |
2113 | is_dp = true; | |
2114 | break; | |
79e53945 | 2115 | } |
43565a06 KH |
2116 | |
2117 | num_outputs++; | |
79e53945 JB |
2118 | } |
2119 | ||
43565a06 KH |
2120 | if (is_lvds && dev_priv->lvds_use_ssc && num_outputs < 2) { |
2121 | refclk = dev_priv->lvds_ssc_freq * 1000; | |
2122 | DRM_DEBUG("using SSC reference clock of %d MHz\n", refclk / 1000); | |
2123 | } else if (IS_I9XX(dev)) { | |
79e53945 | 2124 | refclk = 96000; |
2c07245f ZW |
2125 | if (IS_IGDNG(dev)) |
2126 | refclk = 120000; /* 120Mhz refclk */ | |
79e53945 JB |
2127 | } else { |
2128 | refclk = 48000; | |
2129 | } | |
a4fc5ed6 | 2130 | |
79e53945 | 2131 | |
d4906093 ML |
2132 | /* |
2133 | * Returns a set of divisors for the desired target clock with the given | |
2134 | * refclk, or FALSE. The returned values represent the clock equation: | |
2135 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. | |
2136 | */ | |
2137 | limit = intel_limit(crtc); | |
2138 | ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, &clock); | |
79e53945 JB |
2139 | if (!ok) { |
2140 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); | |
1f803ee5 | 2141 | drm_vblank_post_modeset(dev, pipe); |
5c3b82e2 | 2142 | return -EINVAL; |
79e53945 JB |
2143 | } |
2144 | ||
7026d4ac ZW |
2145 | /* SDVO TV has fixed PLL values depend on its clock range, |
2146 | this mirrors vbios setting. */ | |
2147 | if (is_sdvo && is_tv) { | |
2148 | if (adjusted_mode->clock >= 100000 | |
2149 | && adjusted_mode->clock < 140500) { | |
2150 | clock.p1 = 2; | |
2151 | clock.p2 = 10; | |
2152 | clock.n = 3; | |
2153 | clock.m1 = 16; | |
2154 | clock.m2 = 8; | |
2155 | } else if (adjusted_mode->clock >= 140500 | |
2156 | && adjusted_mode->clock <= 200000) { | |
2157 | clock.p1 = 1; | |
2158 | clock.p2 = 10; | |
2159 | clock.n = 6; | |
2160 | clock.m1 = 12; | |
2161 | clock.m2 = 8; | |
2162 | } | |
2163 | } | |
2164 | ||
2c07245f ZW |
2165 | /* FDI link */ |
2166 | if (IS_IGDNG(dev)) | |
2167 | igdng_compute_m_n(3, 4, /* lane num 4 */ | |
2168 | adjusted_mode->clock, | |
2169 | 270000, /* lane clock */ | |
2170 | &m_n); | |
2171 | ||
2177832f SL |
2172 | if (IS_IGD(dev)) |
2173 | fp = (1 << clock.n) << 16 | clock.m1 << 8 | clock.m2; | |
2174 | else | |
2175 | fp = clock.n << 16 | clock.m1 << 8 | clock.m2; | |
79e53945 | 2176 | |
2c07245f ZW |
2177 | if (!IS_IGDNG(dev)) |
2178 | dpll = DPLL_VGA_MODE_DIS; | |
2179 | ||
79e53945 JB |
2180 | if (IS_I9XX(dev)) { |
2181 | if (is_lvds) | |
2182 | dpll |= DPLLB_MODE_LVDS; | |
2183 | else | |
2184 | dpll |= DPLLB_MODE_DAC_SERIAL; | |
2185 | if (is_sdvo) { | |
2186 | dpll |= DPLL_DVO_HIGH_SPEED; | |
2c07245f ZW |
2187 | sdvo_pixel_multiply = adjusted_mode->clock / mode->clock; |
2188 | if (IS_I945G(dev) || IS_I945GM(dev)) | |
79e53945 | 2189 | dpll |= (sdvo_pixel_multiply - 1) << SDVO_MULTIPLIER_SHIFT_HIRES; |
2c07245f ZW |
2190 | else if (IS_IGDNG(dev)) |
2191 | dpll |= (sdvo_pixel_multiply - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; | |
79e53945 | 2192 | } |
a4fc5ed6 KP |
2193 | if (is_dp) |
2194 | dpll |= DPLL_DVO_HIGH_SPEED; | |
79e53945 JB |
2195 | |
2196 | /* compute bitmask from p1 value */ | |
2177832f SL |
2197 | if (IS_IGD(dev)) |
2198 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_IGD; | |
2c07245f | 2199 | else { |
2177832f | 2200 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
2c07245f ZW |
2201 | /* also FPA1 */ |
2202 | if (IS_IGDNG(dev)) | |
2203 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; | |
2204 | } | |
79e53945 JB |
2205 | switch (clock.p2) { |
2206 | case 5: | |
2207 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; | |
2208 | break; | |
2209 | case 7: | |
2210 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; | |
2211 | break; | |
2212 | case 10: | |
2213 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; | |
2214 | break; | |
2215 | case 14: | |
2216 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; | |
2217 | break; | |
2218 | } | |
2c07245f | 2219 | if (IS_I965G(dev) && !IS_IGDNG(dev)) |
79e53945 JB |
2220 | dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT); |
2221 | } else { | |
2222 | if (is_lvds) { | |
2223 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
2224 | } else { | |
2225 | if (clock.p1 == 2) | |
2226 | dpll |= PLL_P1_DIVIDE_BY_TWO; | |
2227 | else | |
2228 | dpll |= (clock.p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT; | |
2229 | if (clock.p2 == 4) | |
2230 | dpll |= PLL_P2_DIVIDE_BY_4; | |
2231 | } | |
2232 | } | |
2233 | ||
43565a06 KH |
2234 | if (is_sdvo && is_tv) |
2235 | dpll |= PLL_REF_INPUT_TVCLKINBC; | |
2236 | else if (is_tv) | |
79e53945 | 2237 | /* XXX: just matching BIOS for now */ |
43565a06 | 2238 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ |
79e53945 | 2239 | dpll |= 3; |
43565a06 KH |
2240 | else if (is_lvds && dev_priv->lvds_use_ssc && num_outputs < 2) |
2241 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; | |
79e53945 JB |
2242 | else |
2243 | dpll |= PLL_REF_INPUT_DREFCLK; | |
2244 | ||
2245 | /* setup pipeconf */ | |
2246 | pipeconf = I915_READ(pipeconf_reg); | |
2247 | ||
2248 | /* Set up the display plane register */ | |
2249 | dspcntr = DISPPLANE_GAMMA_ENABLE; | |
2250 | ||
2c07245f ZW |
2251 | /* IGDNG's plane is forced to pipe, bit 24 is to |
2252 | enable color space conversion */ | |
2253 | if (!IS_IGDNG(dev)) { | |
2254 | if (pipe == 0) | |
2255 | dspcntr |= DISPPLANE_SEL_PIPE_A; | |
2256 | else | |
2257 | dspcntr |= DISPPLANE_SEL_PIPE_B; | |
2258 | } | |
79e53945 JB |
2259 | |
2260 | if (pipe == 0 && !IS_I965G(dev)) { | |
2261 | /* Enable pixel doubling when the dot clock is > 90% of the (display) | |
2262 | * core speed. | |
2263 | * | |
2264 | * XXX: No double-wide on 915GM pipe B. Is that the only reason for the | |
2265 | * pipe == 0 check? | |
2266 | */ | |
2267 | if (mode->clock > intel_get_core_clock_speed(dev) * 9 / 10) | |
2268 | pipeconf |= PIPEACONF_DOUBLE_WIDE; | |
2269 | else | |
2270 | pipeconf &= ~PIPEACONF_DOUBLE_WIDE; | |
2271 | } | |
2272 | ||
2273 | dspcntr |= DISPLAY_PLANE_ENABLE; | |
2274 | pipeconf |= PIPEACONF_ENABLE; | |
2275 | dpll |= DPLL_VCO_ENABLE; | |
2276 | ||
2277 | ||
2278 | /* Disable the panel fitter if it was on our pipe */ | |
2c07245f | 2279 | if (!IS_IGDNG(dev) && intel_panel_fitter_pipe(dev) == pipe) |
79e53945 JB |
2280 | I915_WRITE(PFIT_CONTROL, 0); |
2281 | ||
2282 | DRM_DEBUG("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B'); | |
2283 | drm_mode_debug_printmodeline(mode); | |
2284 | ||
2c07245f ZW |
2285 | /* assign to IGDNG registers */ |
2286 | if (IS_IGDNG(dev)) { | |
2287 | fp_reg = pch_fp_reg; | |
2288 | dpll_reg = pch_dpll_reg; | |
2289 | } | |
79e53945 JB |
2290 | |
2291 | if (dpll & DPLL_VCO_ENABLE) { | |
2292 | I915_WRITE(fp_reg, fp); | |
2293 | I915_WRITE(dpll_reg, dpll & ~DPLL_VCO_ENABLE); | |
2294 | I915_READ(dpll_reg); | |
2295 | udelay(150); | |
2296 | } | |
2297 | ||
2c07245f ZW |
2298 | if (IS_IGDNG(dev)) { |
2299 | /* enable PCH clock reference source */ | |
2300 | /* XXX need to change the setting for other outputs */ | |
2301 | u32 temp; | |
2302 | temp = I915_READ(PCH_DREF_CONTROL); | |
2303 | temp &= ~DREF_NONSPREAD_SOURCE_MASK; | |
2304 | temp |= DREF_NONSPREAD_CK505_ENABLE; | |
2305 | temp &= ~DREF_SSC_SOURCE_MASK; | |
2306 | temp |= DREF_SSC_SOURCE_ENABLE; | |
2307 | temp &= ~DREF_SSC1_ENABLE; | |
2308 | /* if no eDP, disable source output to CPU */ | |
2309 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; | |
2310 | temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE; | |
2311 | I915_WRITE(PCH_DREF_CONTROL, temp); | |
2312 | } | |
2313 | ||
79e53945 JB |
2314 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. |
2315 | * This is an exception to the general rule that mode_set doesn't turn | |
2316 | * things on. | |
2317 | */ | |
2318 | if (is_lvds) { | |
541998a1 | 2319 | u32 lvds; |
79e53945 | 2320 | |
541998a1 ZW |
2321 | if (IS_IGDNG(dev)) |
2322 | lvds_reg = PCH_LVDS; | |
2323 | ||
2324 | lvds = I915_READ(lvds_reg); | |
79e53945 JB |
2325 | lvds |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP | LVDS_PIPEB_SELECT; |
2326 | /* Set the B0-B3 data pairs corresponding to whether we're going to | |
2327 | * set the DPLLs for dual-channel mode or not. | |
2328 | */ | |
2329 | if (clock.p2 == 7) | |
2330 | lvds |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; | |
2331 | else | |
2332 | lvds &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); | |
2333 | ||
2334 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) | |
2335 | * appropriately here, but we need to look more thoroughly into how | |
2336 | * panels behave in the two modes. | |
2337 | */ | |
2338 | ||
541998a1 ZW |
2339 | I915_WRITE(lvds_reg, lvds); |
2340 | I915_READ(lvds_reg); | |
79e53945 | 2341 | } |
a4fc5ed6 KP |
2342 | if (is_dp) |
2343 | intel_dp_set_m_n(crtc, mode, adjusted_mode); | |
79e53945 JB |
2344 | |
2345 | I915_WRITE(fp_reg, fp); | |
2346 | I915_WRITE(dpll_reg, dpll); | |
2347 | I915_READ(dpll_reg); | |
2348 | /* Wait for the clocks to stabilize. */ | |
2349 | udelay(150); | |
2350 | ||
2c07245f ZW |
2351 | if (IS_I965G(dev) && !IS_IGDNG(dev)) { |
2352 | sdvo_pixel_multiply = adjusted_mode->clock / mode->clock; | |
79e53945 JB |
2353 | I915_WRITE(dpll_md_reg, (0 << DPLL_MD_UDI_DIVIDER_SHIFT) | |
2354 | ((sdvo_pixel_multiply - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT)); | |
2355 | } else { | |
2356 | /* write it again -- the BIOS does, after all */ | |
2357 | I915_WRITE(dpll_reg, dpll); | |
2358 | } | |
2359 | I915_READ(dpll_reg); | |
2360 | /* Wait for the clocks to stabilize. */ | |
2361 | udelay(150); | |
2362 | ||
2363 | I915_WRITE(htot_reg, (adjusted_mode->crtc_hdisplay - 1) | | |
2364 | ((adjusted_mode->crtc_htotal - 1) << 16)); | |
2365 | I915_WRITE(hblank_reg, (adjusted_mode->crtc_hblank_start - 1) | | |
2366 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); | |
2367 | I915_WRITE(hsync_reg, (adjusted_mode->crtc_hsync_start - 1) | | |
2368 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); | |
2369 | I915_WRITE(vtot_reg, (adjusted_mode->crtc_vdisplay - 1) | | |
2370 | ((adjusted_mode->crtc_vtotal - 1) << 16)); | |
2371 | I915_WRITE(vblank_reg, (adjusted_mode->crtc_vblank_start - 1) | | |
2372 | ((adjusted_mode->crtc_vblank_end - 1) << 16)); | |
2373 | I915_WRITE(vsync_reg, (adjusted_mode->crtc_vsync_start - 1) | | |
2374 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); | |
2375 | /* pipesrc and dspsize control the size that is scaled from, which should | |
2376 | * always be the user's requested size. | |
2377 | */ | |
2c07245f ZW |
2378 | if (!IS_IGDNG(dev)) { |
2379 | I915_WRITE(dspsize_reg, ((mode->vdisplay - 1) << 16) | | |
2380 | (mode->hdisplay - 1)); | |
2381 | I915_WRITE(dsppos_reg, 0); | |
2382 | } | |
79e53945 | 2383 | I915_WRITE(pipesrc_reg, ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); |
2c07245f ZW |
2384 | |
2385 | if (IS_IGDNG(dev)) { | |
2386 | I915_WRITE(data_m1_reg, TU_SIZE(m_n.tu) | m_n.gmch_m); | |
2387 | I915_WRITE(data_n1_reg, TU_SIZE(m_n.tu) | m_n.gmch_n); | |
2388 | I915_WRITE(link_m1_reg, m_n.link_m); | |
2389 | I915_WRITE(link_n1_reg, m_n.link_n); | |
2390 | ||
2391 | /* enable FDI RX PLL too */ | |
2392 | temp = I915_READ(fdi_rx_reg); | |
2393 | I915_WRITE(fdi_rx_reg, temp | FDI_RX_PLL_ENABLE); | |
2394 | udelay(200); | |
2395 | } | |
2396 | ||
79e53945 JB |
2397 | I915_WRITE(pipeconf_reg, pipeconf); |
2398 | I915_READ(pipeconf_reg); | |
2399 | ||
2400 | intel_wait_for_vblank(dev); | |
2401 | ||
2402 | I915_WRITE(dspcntr_reg, dspcntr); | |
2403 | ||
2404 | /* Flush the plane changes */ | |
5c3b82e2 | 2405 | ret = intel_pipe_set_base(crtc, x, y, old_fb); |
7662c8bd SL |
2406 | |
2407 | intel_update_watermarks(dev); | |
2408 | ||
79e53945 | 2409 | drm_vblank_post_modeset(dev, pipe); |
5c3b82e2 | 2410 | |
1f803ee5 | 2411 | return ret; |
79e53945 JB |
2412 | } |
2413 | ||
2414 | /** Loads the palette/gamma unit for the CRTC with the prepared values */ | |
2415 | void intel_crtc_load_lut(struct drm_crtc *crtc) | |
2416 | { | |
2417 | struct drm_device *dev = crtc->dev; | |
2418 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2419 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2420 | int palreg = (intel_crtc->pipe == 0) ? PALETTE_A : PALETTE_B; | |
2421 | int i; | |
2422 | ||
2423 | /* The clocks have to be on to load the palette. */ | |
2424 | if (!crtc->enabled) | |
2425 | return; | |
2426 | ||
2c07245f ZW |
2427 | /* use legacy palette for IGDNG */ |
2428 | if (IS_IGDNG(dev)) | |
2429 | palreg = (intel_crtc->pipe == 0) ? LGC_PALETTE_A : | |
2430 | LGC_PALETTE_B; | |
2431 | ||
79e53945 JB |
2432 | for (i = 0; i < 256; i++) { |
2433 | I915_WRITE(palreg + 4 * i, | |
2434 | (intel_crtc->lut_r[i] << 16) | | |
2435 | (intel_crtc->lut_g[i] << 8) | | |
2436 | intel_crtc->lut_b[i]); | |
2437 | } | |
2438 | } | |
2439 | ||
2440 | static int intel_crtc_cursor_set(struct drm_crtc *crtc, | |
2441 | struct drm_file *file_priv, | |
2442 | uint32_t handle, | |
2443 | uint32_t width, uint32_t height) | |
2444 | { | |
2445 | struct drm_device *dev = crtc->dev; | |
2446 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2447 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2448 | struct drm_gem_object *bo; | |
2449 | struct drm_i915_gem_object *obj_priv; | |
2450 | int pipe = intel_crtc->pipe; | |
2451 | uint32_t control = (pipe == 0) ? CURACNTR : CURBCNTR; | |
2452 | uint32_t base = (pipe == 0) ? CURABASE : CURBBASE; | |
14b60391 | 2453 | uint32_t temp = I915_READ(control); |
79e53945 | 2454 | size_t addr; |
3f8bc370 | 2455 | int ret; |
79e53945 JB |
2456 | |
2457 | DRM_DEBUG("\n"); | |
2458 | ||
2459 | /* if we want to turn off the cursor ignore width and height */ | |
2460 | if (!handle) { | |
2461 | DRM_DEBUG("cursor off\n"); | |
14b60391 JB |
2462 | if (IS_MOBILE(dev) || IS_I9XX(dev)) { |
2463 | temp &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); | |
2464 | temp |= CURSOR_MODE_DISABLE; | |
2465 | } else { | |
2466 | temp &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE); | |
2467 | } | |
3f8bc370 KH |
2468 | addr = 0; |
2469 | bo = NULL; | |
5004417d | 2470 | mutex_lock(&dev->struct_mutex); |
3f8bc370 | 2471 | goto finish; |
79e53945 JB |
2472 | } |
2473 | ||
2474 | /* Currently we only support 64x64 cursors */ | |
2475 | if (width != 64 || height != 64) { | |
2476 | DRM_ERROR("we currently only support 64x64 cursors\n"); | |
2477 | return -EINVAL; | |
2478 | } | |
2479 | ||
2480 | bo = drm_gem_object_lookup(dev, file_priv, handle); | |
2481 | if (!bo) | |
2482 | return -ENOENT; | |
2483 | ||
2484 | obj_priv = bo->driver_private; | |
2485 | ||
2486 | if (bo->size < width * height * 4) { | |
2487 | DRM_ERROR("buffer is to small\n"); | |
34b8686e DA |
2488 | ret = -ENOMEM; |
2489 | goto fail; | |
79e53945 JB |
2490 | } |
2491 | ||
71acb5eb | 2492 | /* we only need to pin inside GTT if cursor is non-phy */ |
7f9872e0 | 2493 | mutex_lock(&dev->struct_mutex); |
71acb5eb DA |
2494 | if (!dev_priv->cursor_needs_physical) { |
2495 | ret = i915_gem_object_pin(bo, PAGE_SIZE); | |
2496 | if (ret) { | |
2497 | DRM_ERROR("failed to pin cursor bo\n"); | |
7f9872e0 | 2498 | goto fail_locked; |
71acb5eb | 2499 | } |
79e53945 | 2500 | addr = obj_priv->gtt_offset; |
71acb5eb DA |
2501 | } else { |
2502 | ret = i915_gem_attach_phys_object(dev, bo, (pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1); | |
2503 | if (ret) { | |
2504 | DRM_ERROR("failed to attach phys object\n"); | |
7f9872e0 | 2505 | goto fail_locked; |
71acb5eb DA |
2506 | } |
2507 | addr = obj_priv->phys_obj->handle->busaddr; | |
3f8bc370 KH |
2508 | } |
2509 | ||
14b60391 JB |
2510 | if (!IS_I9XX(dev)) |
2511 | I915_WRITE(CURSIZE, (height << 12) | width); | |
2512 | ||
2513 | /* Hooray for CUR*CNTR differences */ | |
2514 | if (IS_MOBILE(dev) || IS_I9XX(dev)) { | |
2515 | temp &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT); | |
2516 | temp |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; | |
2517 | temp |= (pipe << 28); /* Connect to correct pipe */ | |
2518 | } else { | |
2519 | temp &= ~(CURSOR_FORMAT_MASK); | |
2520 | temp |= CURSOR_ENABLE; | |
2521 | temp |= CURSOR_FORMAT_ARGB | CURSOR_GAMMA_ENABLE; | |
2522 | } | |
79e53945 | 2523 | |
3f8bc370 | 2524 | finish: |
79e53945 JB |
2525 | I915_WRITE(control, temp); |
2526 | I915_WRITE(base, addr); | |
2527 | ||
3f8bc370 | 2528 | if (intel_crtc->cursor_bo) { |
71acb5eb DA |
2529 | if (dev_priv->cursor_needs_physical) { |
2530 | if (intel_crtc->cursor_bo != bo) | |
2531 | i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo); | |
2532 | } else | |
2533 | i915_gem_object_unpin(intel_crtc->cursor_bo); | |
3f8bc370 KH |
2534 | drm_gem_object_unreference(intel_crtc->cursor_bo); |
2535 | } | |
7f9872e0 | 2536 | mutex_unlock(&dev->struct_mutex); |
3f8bc370 KH |
2537 | |
2538 | intel_crtc->cursor_addr = addr; | |
2539 | intel_crtc->cursor_bo = bo; | |
2540 | ||
79e53945 | 2541 | return 0; |
34b8686e DA |
2542 | fail: |
2543 | mutex_lock(&dev->struct_mutex); | |
7f9872e0 | 2544 | fail_locked: |
34b8686e DA |
2545 | drm_gem_object_unreference(bo); |
2546 | mutex_unlock(&dev->struct_mutex); | |
2547 | return ret; | |
79e53945 JB |
2548 | } |
2549 | ||
2550 | static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) | |
2551 | { | |
2552 | struct drm_device *dev = crtc->dev; | |
2553 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2554 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2555 | int pipe = intel_crtc->pipe; | |
2556 | uint32_t temp = 0; | |
2557 | uint32_t adder; | |
2558 | ||
2559 | if (x < 0) { | |
2245fda8 | 2560 | temp |= CURSOR_POS_SIGN << CURSOR_X_SHIFT; |
79e53945 JB |
2561 | x = -x; |
2562 | } | |
2563 | if (y < 0) { | |
2245fda8 | 2564 | temp |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT; |
79e53945 JB |
2565 | y = -y; |
2566 | } | |
2567 | ||
2245fda8 KP |
2568 | temp |= x << CURSOR_X_SHIFT; |
2569 | temp |= y << CURSOR_Y_SHIFT; | |
79e53945 JB |
2570 | |
2571 | adder = intel_crtc->cursor_addr; | |
2572 | I915_WRITE((pipe == 0) ? CURAPOS : CURBPOS, temp); | |
2573 | I915_WRITE((pipe == 0) ? CURABASE : CURBBASE, adder); | |
2574 | ||
2575 | return 0; | |
2576 | } | |
2577 | ||
2578 | /** Sets the color ramps on behalf of RandR */ | |
2579 | void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, | |
2580 | u16 blue, int regno) | |
2581 | { | |
2582 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2583 | ||
2584 | intel_crtc->lut_r[regno] = red >> 8; | |
2585 | intel_crtc->lut_g[regno] = green >> 8; | |
2586 | intel_crtc->lut_b[regno] = blue >> 8; | |
2587 | } | |
2588 | ||
2589 | static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, | |
2590 | u16 *blue, uint32_t size) | |
2591 | { | |
2592 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2593 | int i; | |
2594 | ||
2595 | if (size != 256) | |
2596 | return; | |
2597 | ||
2598 | for (i = 0; i < 256; i++) { | |
2599 | intel_crtc->lut_r[i] = red[i] >> 8; | |
2600 | intel_crtc->lut_g[i] = green[i] >> 8; | |
2601 | intel_crtc->lut_b[i] = blue[i] >> 8; | |
2602 | } | |
2603 | ||
2604 | intel_crtc_load_lut(crtc); | |
2605 | } | |
2606 | ||
2607 | /** | |
2608 | * Get a pipe with a simple mode set on it for doing load-based monitor | |
2609 | * detection. | |
2610 | * | |
2611 | * It will be up to the load-detect code to adjust the pipe as appropriate for | |
2612 | * its requirements. The pipe will be connected to no other outputs. | |
2613 | * | |
2614 | * Currently this code will only succeed if there is a pipe with no outputs | |
2615 | * configured for it. In the future, it could choose to temporarily disable | |
2616 | * some outputs to free up a pipe for its use. | |
2617 | * | |
2618 | * \return crtc, or NULL if no pipes are available. | |
2619 | */ | |
2620 | ||
2621 | /* VESA 640x480x72Hz mode to set on the pipe */ | |
2622 | static struct drm_display_mode load_detect_mode = { | |
2623 | DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, | |
2624 | 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), | |
2625 | }; | |
2626 | ||
2627 | struct drm_crtc *intel_get_load_detect_pipe(struct intel_output *intel_output, | |
2628 | struct drm_display_mode *mode, | |
2629 | int *dpms_mode) | |
2630 | { | |
2631 | struct intel_crtc *intel_crtc; | |
2632 | struct drm_crtc *possible_crtc; | |
2633 | struct drm_crtc *supported_crtc =NULL; | |
2634 | struct drm_encoder *encoder = &intel_output->enc; | |
2635 | struct drm_crtc *crtc = NULL; | |
2636 | struct drm_device *dev = encoder->dev; | |
2637 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
2638 | struct drm_crtc_helper_funcs *crtc_funcs; | |
2639 | int i = -1; | |
2640 | ||
2641 | /* | |
2642 | * Algorithm gets a little messy: | |
2643 | * - if the connector already has an assigned crtc, use it (but make | |
2644 | * sure it's on first) | |
2645 | * - try to find the first unused crtc that can drive this connector, | |
2646 | * and use that if we find one | |
2647 | * - if there are no unused crtcs available, try to use the first | |
2648 | * one we found that supports the connector | |
2649 | */ | |
2650 | ||
2651 | /* See if we already have a CRTC for this connector */ | |
2652 | if (encoder->crtc) { | |
2653 | crtc = encoder->crtc; | |
2654 | /* Make sure the crtc and connector are running */ | |
2655 | intel_crtc = to_intel_crtc(crtc); | |
2656 | *dpms_mode = intel_crtc->dpms_mode; | |
2657 | if (intel_crtc->dpms_mode != DRM_MODE_DPMS_ON) { | |
2658 | crtc_funcs = crtc->helper_private; | |
2659 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); | |
2660 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); | |
2661 | } | |
2662 | return crtc; | |
2663 | } | |
2664 | ||
2665 | /* Find an unused one (if possible) */ | |
2666 | list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) { | |
2667 | i++; | |
2668 | if (!(encoder->possible_crtcs & (1 << i))) | |
2669 | continue; | |
2670 | if (!possible_crtc->enabled) { | |
2671 | crtc = possible_crtc; | |
2672 | break; | |
2673 | } | |
2674 | if (!supported_crtc) | |
2675 | supported_crtc = possible_crtc; | |
2676 | } | |
2677 | ||
2678 | /* | |
2679 | * If we didn't find an unused CRTC, don't use any. | |
2680 | */ | |
2681 | if (!crtc) { | |
2682 | return NULL; | |
2683 | } | |
2684 | ||
2685 | encoder->crtc = crtc; | |
03d60699 | 2686 | intel_output->base.encoder = encoder; |
79e53945 JB |
2687 | intel_output->load_detect_temp = true; |
2688 | ||
2689 | intel_crtc = to_intel_crtc(crtc); | |
2690 | *dpms_mode = intel_crtc->dpms_mode; | |
2691 | ||
2692 | if (!crtc->enabled) { | |
2693 | if (!mode) | |
2694 | mode = &load_detect_mode; | |
3c4fdcfb | 2695 | drm_crtc_helper_set_mode(crtc, mode, 0, 0, crtc->fb); |
79e53945 JB |
2696 | } else { |
2697 | if (intel_crtc->dpms_mode != DRM_MODE_DPMS_ON) { | |
2698 | crtc_funcs = crtc->helper_private; | |
2699 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); | |
2700 | } | |
2701 | ||
2702 | /* Add this connector to the crtc */ | |
2703 | encoder_funcs->mode_set(encoder, &crtc->mode, &crtc->mode); | |
2704 | encoder_funcs->commit(encoder); | |
2705 | } | |
2706 | /* let the connector get through one full cycle before testing */ | |
2707 | intel_wait_for_vblank(dev); | |
2708 | ||
2709 | return crtc; | |
2710 | } | |
2711 | ||
2712 | void intel_release_load_detect_pipe(struct intel_output *intel_output, int dpms_mode) | |
2713 | { | |
2714 | struct drm_encoder *encoder = &intel_output->enc; | |
2715 | struct drm_device *dev = encoder->dev; | |
2716 | struct drm_crtc *crtc = encoder->crtc; | |
2717 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
2718 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
2719 | ||
2720 | if (intel_output->load_detect_temp) { | |
2721 | encoder->crtc = NULL; | |
03d60699 | 2722 | intel_output->base.encoder = NULL; |
79e53945 JB |
2723 | intel_output->load_detect_temp = false; |
2724 | crtc->enabled = drm_helper_crtc_in_use(crtc); | |
2725 | drm_helper_disable_unused_functions(dev); | |
2726 | } | |
2727 | ||
2728 | /* Switch crtc and output back off if necessary */ | |
2729 | if (crtc->enabled && dpms_mode != DRM_MODE_DPMS_ON) { | |
2730 | if (encoder->crtc == crtc) | |
2731 | encoder_funcs->dpms(encoder, dpms_mode); | |
2732 | crtc_funcs->dpms(crtc, dpms_mode); | |
2733 | } | |
2734 | } | |
2735 | ||
2736 | /* Returns the clock of the currently programmed mode of the given pipe. */ | |
2737 | static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc) | |
2738 | { | |
2739 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2740 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2741 | int pipe = intel_crtc->pipe; | |
2742 | u32 dpll = I915_READ((pipe == 0) ? DPLL_A : DPLL_B); | |
2743 | u32 fp; | |
2744 | intel_clock_t clock; | |
2745 | ||
2746 | if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) | |
2747 | fp = I915_READ((pipe == 0) ? FPA0 : FPB0); | |
2748 | else | |
2749 | fp = I915_READ((pipe == 0) ? FPA1 : FPB1); | |
2750 | ||
2751 | clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; | |
2177832f SL |
2752 | if (IS_IGD(dev)) { |
2753 | clock.n = ffs((fp & FP_N_IGD_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; | |
2754 | clock.m2 = (fp & FP_M2_IGD_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
2755 | } else { | |
2756 | clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; | |
2757 | clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; | |
2758 | } | |
2759 | ||
79e53945 | 2760 | if (IS_I9XX(dev)) { |
2177832f SL |
2761 | if (IS_IGD(dev)) |
2762 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_IGD) >> | |
2763 | DPLL_FPA01_P1_POST_DIV_SHIFT_IGD); | |
2764 | else | |
2765 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> | |
79e53945 JB |
2766 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
2767 | ||
2768 | switch (dpll & DPLL_MODE_MASK) { | |
2769 | case DPLLB_MODE_DAC_SERIAL: | |
2770 | clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? | |
2771 | 5 : 10; | |
2772 | break; | |
2773 | case DPLLB_MODE_LVDS: | |
2774 | clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? | |
2775 | 7 : 14; | |
2776 | break; | |
2777 | default: | |
2778 | DRM_DEBUG("Unknown DPLL mode %08x in programmed " | |
2779 | "mode\n", (int)(dpll & DPLL_MODE_MASK)); | |
2780 | return 0; | |
2781 | } | |
2782 | ||
2783 | /* XXX: Handle the 100Mhz refclk */ | |
2177832f | 2784 | intel_clock(dev, 96000, &clock); |
79e53945 JB |
2785 | } else { |
2786 | bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN); | |
2787 | ||
2788 | if (is_lvds) { | |
2789 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> | |
2790 | DPLL_FPA01_P1_POST_DIV_SHIFT); | |
2791 | clock.p2 = 14; | |
2792 | ||
2793 | if ((dpll & PLL_REF_INPUT_MASK) == | |
2794 | PLLB_REF_INPUT_SPREADSPECTRUMIN) { | |
2795 | /* XXX: might not be 66MHz */ | |
2177832f | 2796 | intel_clock(dev, 66000, &clock); |
79e53945 | 2797 | } else |
2177832f | 2798 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
2799 | } else { |
2800 | if (dpll & PLL_P1_DIVIDE_BY_TWO) | |
2801 | clock.p1 = 2; | |
2802 | else { | |
2803 | clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> | |
2804 | DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; | |
2805 | } | |
2806 | if (dpll & PLL_P2_DIVIDE_BY_4) | |
2807 | clock.p2 = 4; | |
2808 | else | |
2809 | clock.p2 = 2; | |
2810 | ||
2177832f | 2811 | intel_clock(dev, 48000, &clock); |
79e53945 JB |
2812 | } |
2813 | } | |
2814 | ||
2815 | /* XXX: It would be nice to validate the clocks, but we can't reuse | |
2816 | * i830PllIsValid() because it relies on the xf86_config connector | |
2817 | * configuration being accurate, which it isn't necessarily. | |
2818 | */ | |
2819 | ||
2820 | return clock.dot; | |
2821 | } | |
2822 | ||
2823 | /** Returns the currently programmed mode of the given pipe. */ | |
2824 | struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, | |
2825 | struct drm_crtc *crtc) | |
2826 | { | |
2827 | struct drm_i915_private *dev_priv = dev->dev_private; | |
2828 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2829 | int pipe = intel_crtc->pipe; | |
2830 | struct drm_display_mode *mode; | |
2831 | int htot = I915_READ((pipe == 0) ? HTOTAL_A : HTOTAL_B); | |
2832 | int hsync = I915_READ((pipe == 0) ? HSYNC_A : HSYNC_B); | |
2833 | int vtot = I915_READ((pipe == 0) ? VTOTAL_A : VTOTAL_B); | |
2834 | int vsync = I915_READ((pipe == 0) ? VSYNC_A : VSYNC_B); | |
2835 | ||
2836 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); | |
2837 | if (!mode) | |
2838 | return NULL; | |
2839 | ||
2840 | mode->clock = intel_crtc_clock_get(dev, crtc); | |
2841 | mode->hdisplay = (htot & 0xffff) + 1; | |
2842 | mode->htotal = ((htot & 0xffff0000) >> 16) + 1; | |
2843 | mode->hsync_start = (hsync & 0xffff) + 1; | |
2844 | mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; | |
2845 | mode->vdisplay = (vtot & 0xffff) + 1; | |
2846 | mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; | |
2847 | mode->vsync_start = (vsync & 0xffff) + 1; | |
2848 | mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; | |
2849 | ||
2850 | drm_mode_set_name(mode); | |
2851 | drm_mode_set_crtcinfo(mode, 0); | |
2852 | ||
2853 | return mode; | |
2854 | } | |
2855 | ||
2856 | static void intel_crtc_destroy(struct drm_crtc *crtc) | |
2857 | { | |
2858 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2859 | ||
7ff14559 DA |
2860 | if (intel_crtc->mode_set.mode) |
2861 | drm_mode_destroy(crtc->dev, intel_crtc->mode_set.mode); | |
79e53945 JB |
2862 | drm_crtc_cleanup(crtc); |
2863 | kfree(intel_crtc); | |
2864 | } | |
2865 | ||
2866 | static const struct drm_crtc_helper_funcs intel_helper_funcs = { | |
2867 | .dpms = intel_crtc_dpms, | |
2868 | .mode_fixup = intel_crtc_mode_fixup, | |
2869 | .mode_set = intel_crtc_mode_set, | |
2870 | .mode_set_base = intel_pipe_set_base, | |
2871 | .prepare = intel_crtc_prepare, | |
2872 | .commit = intel_crtc_commit, | |
2873 | }; | |
2874 | ||
2875 | static const struct drm_crtc_funcs intel_crtc_funcs = { | |
2876 | .cursor_set = intel_crtc_cursor_set, | |
2877 | .cursor_move = intel_crtc_cursor_move, | |
2878 | .gamma_set = intel_crtc_gamma_set, | |
2879 | .set_config = drm_crtc_helper_set_config, | |
2880 | .destroy = intel_crtc_destroy, | |
2881 | }; | |
2882 | ||
2883 | ||
b358d0a6 | 2884 | static void intel_crtc_init(struct drm_device *dev, int pipe) |
79e53945 JB |
2885 | { |
2886 | struct intel_crtc *intel_crtc; | |
2887 | int i; | |
2888 | ||
2889 | intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL); | |
2890 | if (intel_crtc == NULL) | |
2891 | return; | |
2892 | ||
2893 | drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs); | |
2894 | ||
2895 | drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256); | |
2896 | intel_crtc->pipe = pipe; | |
7662c8bd | 2897 | intel_crtc->plane = pipe; |
79e53945 JB |
2898 | for (i = 0; i < 256; i++) { |
2899 | intel_crtc->lut_r[i] = i; | |
2900 | intel_crtc->lut_g[i] = i; | |
2901 | intel_crtc->lut_b[i] = i; | |
2902 | } | |
2903 | ||
2904 | intel_crtc->cursor_addr = 0; | |
2905 | intel_crtc->dpms_mode = DRM_MODE_DPMS_OFF; | |
2906 | drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); | |
2907 | ||
2908 | intel_crtc->mode_set.crtc = &intel_crtc->base; | |
2909 | intel_crtc->mode_set.connectors = (struct drm_connector **)(intel_crtc + 1); | |
2910 | intel_crtc->mode_set.num_connectors = 0; | |
2911 | ||
2912 | if (i915_fbpercrtc) { | |
2913 | ||
2914 | ||
2915 | ||
2916 | } | |
2917 | } | |
2918 | ||
08d7b3d1 CW |
2919 | int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, |
2920 | struct drm_file *file_priv) | |
2921 | { | |
2922 | drm_i915_private_t *dev_priv = dev->dev_private; | |
2923 | struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; | |
2924 | struct drm_crtc *crtc = NULL; | |
2925 | int pipe = -1; | |
2926 | ||
2927 | if (!dev_priv) { | |
2928 | DRM_ERROR("called with no initialization\n"); | |
2929 | return -EINVAL; | |
2930 | } | |
2931 | ||
2932 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
2933 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2934 | if (crtc->base.id == pipe_from_crtc_id->crtc_id) { | |
2935 | pipe = intel_crtc->pipe; | |
2936 | break; | |
2937 | } | |
2938 | } | |
2939 | ||
2940 | if (pipe == -1) { | |
2941 | DRM_ERROR("no such CRTC id\n"); | |
2942 | return -EINVAL; | |
2943 | } | |
2944 | ||
2945 | pipe_from_crtc_id->pipe = pipe; | |
2946 | ||
2947 | return 0; | |
2948 | } | |
2949 | ||
79e53945 JB |
2950 | struct drm_crtc *intel_get_crtc_from_pipe(struct drm_device *dev, int pipe) |
2951 | { | |
2952 | struct drm_crtc *crtc = NULL; | |
2953 | ||
2954 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
2955 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
2956 | if (intel_crtc->pipe == pipe) | |
2957 | break; | |
2958 | } | |
2959 | return crtc; | |
2960 | } | |
2961 | ||
b358d0a6 | 2962 | static int intel_connector_clones(struct drm_device *dev, int type_mask) |
79e53945 JB |
2963 | { |
2964 | int index_mask = 0; | |
2965 | struct drm_connector *connector; | |
2966 | int entry = 0; | |
2967 | ||
2968 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
2969 | struct intel_output *intel_output = to_intel_output(connector); | |
2970 | if (type_mask & (1 << intel_output->type)) | |
2971 | index_mask |= (1 << entry); | |
2972 | entry++; | |
2973 | } | |
2974 | return index_mask; | |
2975 | } | |
2976 | ||
2977 | ||
2978 | static void intel_setup_outputs(struct drm_device *dev) | |
2979 | { | |
725e30ad | 2980 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 JB |
2981 | struct drm_connector *connector; |
2982 | ||
2983 | intel_crt_init(dev); | |
2984 | ||
2985 | /* Set up integrated LVDS */ | |
541998a1 | 2986 | if (IS_MOBILE(dev) && !IS_I830(dev)) |
79e53945 JB |
2987 | intel_lvds_init(dev); |
2988 | ||
2c07245f | 2989 | if (IS_IGDNG(dev)) { |
30ad48b7 ZW |
2990 | int found; |
2991 | ||
2992 | if (I915_READ(HDMIB) & PORT_DETECTED) { | |
2993 | /* check SDVOB */ | |
2994 | /* found = intel_sdvo_init(dev, HDMIB); */ | |
2995 | found = 0; | |
2996 | if (!found) | |
2997 | intel_hdmi_init(dev, HDMIB); | |
2998 | } | |
2999 | ||
3000 | if (I915_READ(HDMIC) & PORT_DETECTED) | |
3001 | intel_hdmi_init(dev, HDMIC); | |
3002 | ||
3003 | if (I915_READ(HDMID) & PORT_DETECTED) | |
3004 | intel_hdmi_init(dev, HDMID); | |
3005 | ||
2c07245f | 3006 | } else if (IS_I9XX(dev)) { |
7d57382e | 3007 | int found; |
13520b05 | 3008 | u32 reg; |
7d57382e | 3009 | |
725e30ad EA |
3010 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
3011 | found = intel_sdvo_init(dev, SDVOB); | |
3012 | if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) | |
3013 | intel_hdmi_init(dev, SDVOB); | |
a4fc5ed6 KP |
3014 | if (!found && SUPPORTS_INTEGRATED_DP(dev)) |
3015 | intel_dp_init(dev, DP_B); | |
725e30ad | 3016 | } |
13520b05 KH |
3017 | |
3018 | /* Before G4X SDVOC doesn't have its own detect register */ | |
3019 | if (IS_G4X(dev)) | |
3020 | reg = SDVOC; | |
3021 | else | |
3022 | reg = SDVOB; | |
3023 | ||
3024 | if (I915_READ(reg) & SDVO_DETECTED) { | |
725e30ad EA |
3025 | found = intel_sdvo_init(dev, SDVOC); |
3026 | if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) | |
3027 | intel_hdmi_init(dev, SDVOC); | |
a4fc5ed6 KP |
3028 | if (!found && SUPPORTS_INTEGRATED_DP(dev)) |
3029 | intel_dp_init(dev, DP_C); | |
725e30ad | 3030 | } |
a4fc5ed6 KP |
3031 | if (SUPPORTS_INTEGRATED_DP(dev) && (I915_READ(DP_D) & DP_DETECTED)) |
3032 | intel_dp_init(dev, DP_D); | |
79e53945 JB |
3033 | } else |
3034 | intel_dvo_init(dev); | |
3035 | ||
2c07245f | 3036 | if (IS_I9XX(dev) && IS_MOBILE(dev) && !IS_IGDNG(dev)) |
79e53945 JB |
3037 | intel_tv_init(dev); |
3038 | ||
3039 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
3040 | struct intel_output *intel_output = to_intel_output(connector); | |
3041 | struct drm_encoder *encoder = &intel_output->enc; | |
3042 | int crtc_mask = 0, clone_mask = 0; | |
3043 | ||
3044 | /* valid crtcs */ | |
3045 | switch(intel_output->type) { | |
7d57382e EA |
3046 | case INTEL_OUTPUT_HDMI: |
3047 | crtc_mask = ((1 << 0)| | |
3048 | (1 << 1)); | |
3049 | clone_mask = ((1 << INTEL_OUTPUT_HDMI)); | |
3050 | break; | |
79e53945 JB |
3051 | case INTEL_OUTPUT_DVO: |
3052 | case INTEL_OUTPUT_SDVO: | |
3053 | crtc_mask = ((1 << 0)| | |
3054 | (1 << 1)); | |
3055 | clone_mask = ((1 << INTEL_OUTPUT_ANALOG) | | |
3056 | (1 << INTEL_OUTPUT_DVO) | | |
3057 | (1 << INTEL_OUTPUT_SDVO)); | |
3058 | break; | |
3059 | case INTEL_OUTPUT_ANALOG: | |
3060 | crtc_mask = ((1 << 0)| | |
3061 | (1 << 1)); | |
3062 | clone_mask = ((1 << INTEL_OUTPUT_ANALOG) | | |
3063 | (1 << INTEL_OUTPUT_DVO) | | |
3064 | (1 << INTEL_OUTPUT_SDVO)); | |
3065 | break; | |
3066 | case INTEL_OUTPUT_LVDS: | |
3067 | crtc_mask = (1 << 1); | |
3068 | clone_mask = (1 << INTEL_OUTPUT_LVDS); | |
3069 | break; | |
3070 | case INTEL_OUTPUT_TVOUT: | |
3071 | crtc_mask = ((1 << 0) | | |
3072 | (1 << 1)); | |
3073 | clone_mask = (1 << INTEL_OUTPUT_TVOUT); | |
3074 | break; | |
a4fc5ed6 KP |
3075 | case INTEL_OUTPUT_DISPLAYPORT: |
3076 | crtc_mask = ((1 << 0) | | |
3077 | (1 << 1)); | |
3078 | clone_mask = (1 << INTEL_OUTPUT_DISPLAYPORT); | |
3079 | break; | |
79e53945 JB |
3080 | } |
3081 | encoder->possible_crtcs = crtc_mask; | |
3082 | encoder->possible_clones = intel_connector_clones(dev, clone_mask); | |
3083 | } | |
3084 | } | |
3085 | ||
3086 | static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb) | |
3087 | { | |
3088 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
3089 | struct drm_device *dev = fb->dev; | |
3090 | ||
3091 | if (fb->fbdev) | |
3092 | intelfb_remove(dev, fb); | |
3093 | ||
3094 | drm_framebuffer_cleanup(fb); | |
3095 | mutex_lock(&dev->struct_mutex); | |
3096 | drm_gem_object_unreference(intel_fb->obj); | |
3097 | mutex_unlock(&dev->struct_mutex); | |
3098 | ||
3099 | kfree(intel_fb); | |
3100 | } | |
3101 | ||
3102 | static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb, | |
3103 | struct drm_file *file_priv, | |
3104 | unsigned int *handle) | |
3105 | { | |
3106 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); | |
3107 | struct drm_gem_object *object = intel_fb->obj; | |
3108 | ||
3109 | return drm_gem_handle_create(file_priv, object, handle); | |
3110 | } | |
3111 | ||
3112 | static const struct drm_framebuffer_funcs intel_fb_funcs = { | |
3113 | .destroy = intel_user_framebuffer_destroy, | |
3114 | .create_handle = intel_user_framebuffer_create_handle, | |
3115 | }; | |
3116 | ||
3117 | int intel_framebuffer_create(struct drm_device *dev, | |
3118 | struct drm_mode_fb_cmd *mode_cmd, | |
3119 | struct drm_framebuffer **fb, | |
3120 | struct drm_gem_object *obj) | |
3121 | { | |
3122 | struct intel_framebuffer *intel_fb; | |
3123 | int ret; | |
3124 | ||
3125 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); | |
3126 | if (!intel_fb) | |
3127 | return -ENOMEM; | |
3128 | ||
3129 | ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); | |
3130 | if (ret) { | |
3131 | DRM_ERROR("framebuffer init failed %d\n", ret); | |
3132 | return ret; | |
3133 | } | |
3134 | ||
3135 | drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); | |
3136 | ||
3137 | intel_fb->obj = obj; | |
3138 | ||
3139 | *fb = &intel_fb->base; | |
3140 | ||
3141 | return 0; | |
3142 | } | |
3143 | ||
3144 | ||
3145 | static struct drm_framebuffer * | |
3146 | intel_user_framebuffer_create(struct drm_device *dev, | |
3147 | struct drm_file *filp, | |
3148 | struct drm_mode_fb_cmd *mode_cmd) | |
3149 | { | |
3150 | struct drm_gem_object *obj; | |
3151 | struct drm_framebuffer *fb; | |
3152 | int ret; | |
3153 | ||
3154 | obj = drm_gem_object_lookup(dev, filp, mode_cmd->handle); | |
3155 | if (!obj) | |
3156 | return NULL; | |
3157 | ||
3158 | ret = intel_framebuffer_create(dev, mode_cmd, &fb, obj); | |
3159 | if (ret) { | |
496818f0 | 3160 | mutex_lock(&dev->struct_mutex); |
79e53945 | 3161 | drm_gem_object_unreference(obj); |
496818f0 | 3162 | mutex_unlock(&dev->struct_mutex); |
79e53945 JB |
3163 | return NULL; |
3164 | } | |
3165 | ||
3166 | return fb; | |
3167 | } | |
3168 | ||
79e53945 | 3169 | static const struct drm_mode_config_funcs intel_mode_funcs = { |
79e53945 JB |
3170 | .fb_create = intel_user_framebuffer_create, |
3171 | .fb_changed = intelfb_probe, | |
3172 | }; | |
3173 | ||
3174 | void intel_modeset_init(struct drm_device *dev) | |
3175 | { | |
3176 | int num_pipe; | |
3177 | int i; | |
3178 | ||
3179 | drm_mode_config_init(dev); | |
3180 | ||
3181 | dev->mode_config.min_width = 0; | |
3182 | dev->mode_config.min_height = 0; | |
3183 | ||
3184 | dev->mode_config.funcs = (void *)&intel_mode_funcs; | |
3185 | ||
3186 | if (IS_I965G(dev)) { | |
3187 | dev->mode_config.max_width = 8192; | |
3188 | dev->mode_config.max_height = 8192; | |
5e4d6fa7 KP |
3189 | } else if (IS_I9XX(dev)) { |
3190 | dev->mode_config.max_width = 4096; | |
3191 | dev->mode_config.max_height = 4096; | |
79e53945 JB |
3192 | } else { |
3193 | dev->mode_config.max_width = 2048; | |
3194 | dev->mode_config.max_height = 2048; | |
3195 | } | |
3196 | ||
3197 | /* set memory base */ | |
3198 | if (IS_I9XX(dev)) | |
3199 | dev->mode_config.fb_base = pci_resource_start(dev->pdev, 2); | |
3200 | else | |
3201 | dev->mode_config.fb_base = pci_resource_start(dev->pdev, 0); | |
3202 | ||
3203 | if (IS_MOBILE(dev) || IS_I9XX(dev)) | |
3204 | num_pipe = 2; | |
3205 | else | |
3206 | num_pipe = 1; | |
3207 | DRM_DEBUG("%d display pipe%s available.\n", | |
3208 | num_pipe, num_pipe > 1 ? "s" : ""); | |
3209 | ||
3210 | for (i = 0; i < num_pipe; i++) { | |
3211 | intel_crtc_init(dev, i); | |
3212 | } | |
3213 | ||
3214 | intel_setup_outputs(dev); | |
3215 | } | |
3216 | ||
3217 | void intel_modeset_cleanup(struct drm_device *dev) | |
3218 | { | |
3219 | drm_mode_config_cleanup(dev); | |
3220 | } | |
3221 | ||
3222 | ||
3223 | /* current intel driver doesn't take advantage of encoders | |
3224 | always give back the encoder for the connector | |
3225 | */ | |
3226 | struct drm_encoder *intel_best_encoder(struct drm_connector *connector) | |
3227 | { | |
3228 | struct intel_output *intel_output = to_intel_output(connector); | |
3229 | ||
3230 | return &intel_output->enc; | |
3231 | } |