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2327 | Serge | 1 | /* |
2 | * Copyright © 2006-2007 Intel Corporation |
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3 | * |
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4 | * Permission is hereby granted, free of charge, to any person obtaining a |
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5 | * copy of this software and associated documentation files (the "Software"), |
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6 | * to deal in the Software without restriction, including without limitation |
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7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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8 | * and/or sell copies of the Software, and to permit persons to whom the |
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9 | * Software is furnished to do so, subject to the following conditions: |
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10 | * |
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11 | * The above copyright notice and this permission notice (including the next |
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12 | * paragraph) shall be included in all copies or substantial portions of the |
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13 | * Software. |
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14 | * |
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15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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21 | * DEALINGS IN THE SOFTWARE. |
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22 | * |
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23 | * Authors: |
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24 | * Eric Anholt |
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25 | */ |
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26 | |||
27 | //#include |
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28 | #include |
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29 | //#include |
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30 | #include |
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31 | #include |
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2330 | Serge | 32 | #include |
2327 | Serge | 33 | //#include |
2342 | Serge | 34 | #include |
3031 | serge | 35 | #include |
2327 | Serge | 36 | #include "intel_drv.h" |
3031 | serge | 37 | #include |
2327 | Serge | 38 | #include "i915_drv.h" |
2351 | Serge | 39 | #include "i915_trace.h" |
3031 | serge | 40 | #include |
41 | #include |
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42 | //#include |
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2327 | Serge | 43 | |
44 | phys_addr_t get_bus_addr(void); |
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45 | |||
46 | static inline __attribute__((const)) |
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47 | bool is_power_of_2(unsigned long n) |
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48 | { |
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49 | return (n != 0 && ((n & (n - 1)) == 0)); |
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50 | } |
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51 | |||
2330 | Serge | 52 | #define MAX_ERRNO 4095 |
53 | |||
54 | #define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO) |
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55 | |||
56 | static inline long IS_ERR(const void *ptr) |
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57 | { |
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58 | return IS_ERR_VALUE((unsigned long)ptr); |
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59 | } |
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60 | |||
61 | static inline void *ERR_PTR(long error) |
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62 | { |
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63 | return (void *) error; |
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64 | } |
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65 | |||
66 | |||
2327 | Serge | 67 | #define HAS_eDP (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) |
68 | |||
2342 | Serge | 69 | bool intel_pipe_has_type(struct drm_crtc *crtc, int type); |
2327 | Serge | 70 | static void intel_increase_pllclock(struct drm_crtc *crtc); |
3031 | serge | 71 | //static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on); |
2327 | Serge | 72 | |
73 | typedef struct { |
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74 | /* given values */ |
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75 | int n; |
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76 | int m1, m2; |
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77 | int p1, p2; |
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78 | /* derived values */ |
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79 | int dot; |
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80 | int vco; |
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81 | int m; |
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82 | int p; |
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83 | } intel_clock_t; |
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84 | |||
85 | typedef struct { |
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86 | int min, max; |
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87 | } intel_range_t; |
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88 | |||
89 | typedef struct { |
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90 | int dot_limit; |
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91 | int p2_slow, p2_fast; |
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92 | } intel_p2_t; |
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93 | |||
94 | #define INTEL_P2_NUM 2 |
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95 | typedef struct intel_limit intel_limit_t; |
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96 | struct intel_limit { |
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97 | intel_range_t dot, vco, n, m, m1, m2, p, p1; |
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98 | intel_p2_t p2; |
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99 | bool (* find_pll)(const intel_limit_t *, struct drm_crtc *, |
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3031 | serge | 100 | int, int, intel_clock_t *, intel_clock_t *); |
2327 | Serge | 101 | }; |
102 | |||
103 | /* FDI */ |
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104 | #define IRONLAKE_FDI_FREQ 2700000 /* in kHz for mode->clock */ |
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105 | |||
106 | static bool |
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107 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, |
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3031 | serge | 108 | int target, int refclk, intel_clock_t *match_clock, |
109 | intel_clock_t *best_clock); |
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2327 | Serge | 110 | static bool |
111 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, |
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3031 | serge | 112 | int target, int refclk, intel_clock_t *match_clock, |
113 | intel_clock_t *best_clock); |
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2327 | Serge | 114 | |
115 | static bool |
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116 | intel_find_pll_g4x_dp(const intel_limit_t *, struct drm_crtc *crtc, |
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3031 | serge | 117 | int target, int refclk, intel_clock_t *match_clock, |
118 | intel_clock_t *best_clock); |
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2327 | Serge | 119 | static bool |
120 | intel_find_pll_ironlake_dp(const intel_limit_t *, struct drm_crtc *crtc, |
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3031 | serge | 121 | int target, int refclk, intel_clock_t *match_clock, |
122 | intel_clock_t *best_clock); |
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2327 | Serge | 123 | |
3031 | serge | 124 | static bool |
125 | intel_vlv_find_best_pll(const intel_limit_t *limit, struct drm_crtc *crtc, |
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126 | int target, int refclk, intel_clock_t *match_clock, |
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127 | intel_clock_t *best_clock); |
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128 | |||
2327 | Serge | 129 | static inline u32 /* units of 100MHz */ |
130 | intel_fdi_link_freq(struct drm_device *dev) |
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131 | { |
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132 | if (IS_GEN5(dev)) { |
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133 | struct drm_i915_private *dev_priv = dev->dev_private; |
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134 | return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2; |
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135 | } else |
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136 | return 27; |
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137 | } |
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138 | |||
139 | static const intel_limit_t intel_limits_i8xx_dvo = { |
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140 | .dot = { .min = 25000, .max = 350000 }, |
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141 | .vco = { .min = 930000, .max = 1400000 }, |
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142 | .n = { .min = 3, .max = 16 }, |
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143 | .m = { .min = 96, .max = 140 }, |
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144 | .m1 = { .min = 18, .max = 26 }, |
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145 | .m2 = { .min = 6, .max = 16 }, |
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146 | .p = { .min = 4, .max = 128 }, |
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147 | .p1 = { .min = 2, .max = 33 }, |
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148 | .p2 = { .dot_limit = 165000, |
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149 | .p2_slow = 4, .p2_fast = 2 }, |
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150 | .find_pll = intel_find_best_PLL, |
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151 | }; |
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152 | |||
153 | static const intel_limit_t intel_limits_i8xx_lvds = { |
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154 | .dot = { .min = 25000, .max = 350000 }, |
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155 | .vco = { .min = 930000, .max = 1400000 }, |
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156 | .n = { .min = 3, .max = 16 }, |
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157 | .m = { .min = 96, .max = 140 }, |
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158 | .m1 = { .min = 18, .max = 26 }, |
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159 | .m2 = { .min = 6, .max = 16 }, |
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160 | .p = { .min = 4, .max = 128 }, |
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161 | .p1 = { .min = 1, .max = 6 }, |
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162 | .p2 = { .dot_limit = 165000, |
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163 | .p2_slow = 14, .p2_fast = 7 }, |
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164 | .find_pll = intel_find_best_PLL, |
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165 | }; |
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166 | |||
167 | static const intel_limit_t intel_limits_i9xx_sdvo = { |
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168 | .dot = { .min = 20000, .max = 400000 }, |
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169 | .vco = { .min = 1400000, .max = 2800000 }, |
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170 | .n = { .min = 1, .max = 6 }, |
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171 | .m = { .min = 70, .max = 120 }, |
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172 | .m1 = { .min = 10, .max = 22 }, |
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173 | .m2 = { .min = 5, .max = 9 }, |
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174 | .p = { .min = 5, .max = 80 }, |
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175 | .p1 = { .min = 1, .max = 8 }, |
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176 | .p2 = { .dot_limit = 200000, |
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177 | .p2_slow = 10, .p2_fast = 5 }, |
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178 | .find_pll = intel_find_best_PLL, |
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179 | }; |
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180 | |||
181 | static const intel_limit_t intel_limits_i9xx_lvds = { |
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182 | .dot = { .min = 20000, .max = 400000 }, |
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183 | .vco = { .min = 1400000, .max = 2800000 }, |
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184 | .n = { .min = 1, .max = 6 }, |
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185 | .m = { .min = 70, .max = 120 }, |
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186 | .m1 = { .min = 10, .max = 22 }, |
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187 | .m2 = { .min = 5, .max = 9 }, |
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188 | .p = { .min = 7, .max = 98 }, |
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189 | .p1 = { .min = 1, .max = 8 }, |
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190 | .p2 = { .dot_limit = 112000, |
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191 | .p2_slow = 14, .p2_fast = 7 }, |
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192 | .find_pll = intel_find_best_PLL, |
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193 | }; |
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194 | |||
195 | |||
196 | static const intel_limit_t intel_limits_g4x_sdvo = { |
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197 | .dot = { .min = 25000, .max = 270000 }, |
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198 | .vco = { .min = 1750000, .max = 3500000}, |
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199 | .n = { .min = 1, .max = 4 }, |
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200 | .m = { .min = 104, .max = 138 }, |
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201 | .m1 = { .min = 17, .max = 23 }, |
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202 | .m2 = { .min = 5, .max = 11 }, |
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203 | .p = { .min = 10, .max = 30 }, |
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204 | .p1 = { .min = 1, .max = 3}, |
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205 | .p2 = { .dot_limit = 270000, |
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206 | .p2_slow = 10, |
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207 | .p2_fast = 10 |
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208 | }, |
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209 | .find_pll = intel_g4x_find_best_PLL, |
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210 | }; |
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211 | |||
212 | static const intel_limit_t intel_limits_g4x_hdmi = { |
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213 | .dot = { .min = 22000, .max = 400000 }, |
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214 | .vco = { .min = 1750000, .max = 3500000}, |
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215 | .n = { .min = 1, .max = 4 }, |
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216 | .m = { .min = 104, .max = 138 }, |
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217 | .m1 = { .min = 16, .max = 23 }, |
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218 | .m2 = { .min = 5, .max = 11 }, |
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219 | .p = { .min = 5, .max = 80 }, |
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220 | .p1 = { .min = 1, .max = 8}, |
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221 | .p2 = { .dot_limit = 165000, |
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222 | .p2_slow = 10, .p2_fast = 5 }, |
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223 | .find_pll = intel_g4x_find_best_PLL, |
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224 | }; |
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225 | |||
226 | static const intel_limit_t intel_limits_g4x_single_channel_lvds = { |
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227 | .dot = { .min = 20000, .max = 115000 }, |
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228 | .vco = { .min = 1750000, .max = 3500000 }, |
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229 | .n = { .min = 1, .max = 3 }, |
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230 | .m = { .min = 104, .max = 138 }, |
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231 | .m1 = { .min = 17, .max = 23 }, |
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232 | .m2 = { .min = 5, .max = 11 }, |
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233 | .p = { .min = 28, .max = 112 }, |
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234 | .p1 = { .min = 2, .max = 8 }, |
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235 | .p2 = { .dot_limit = 0, |
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236 | .p2_slow = 14, .p2_fast = 14 |
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237 | }, |
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238 | .find_pll = intel_g4x_find_best_PLL, |
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239 | }; |
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240 | |||
241 | static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { |
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242 | .dot = { .min = 80000, .max = 224000 }, |
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243 | .vco = { .min = 1750000, .max = 3500000 }, |
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244 | .n = { .min = 1, .max = 3 }, |
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245 | .m = { .min = 104, .max = 138 }, |
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246 | .m1 = { .min = 17, .max = 23 }, |
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247 | .m2 = { .min = 5, .max = 11 }, |
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248 | .p = { .min = 14, .max = 42 }, |
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249 | .p1 = { .min = 2, .max = 6 }, |
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250 | .p2 = { .dot_limit = 0, |
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251 | .p2_slow = 7, .p2_fast = 7 |
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252 | }, |
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253 | .find_pll = intel_g4x_find_best_PLL, |
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254 | }; |
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255 | |||
256 | static const intel_limit_t intel_limits_g4x_display_port = { |
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257 | .dot = { .min = 161670, .max = 227000 }, |
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258 | .vco = { .min = 1750000, .max = 3500000}, |
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259 | .n = { .min = 1, .max = 2 }, |
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260 | .m = { .min = 97, .max = 108 }, |
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261 | .m1 = { .min = 0x10, .max = 0x12 }, |
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262 | .m2 = { .min = 0x05, .max = 0x06 }, |
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263 | .p = { .min = 10, .max = 20 }, |
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264 | .p1 = { .min = 1, .max = 2}, |
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265 | .p2 = { .dot_limit = 0, |
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266 | .p2_slow = 10, .p2_fast = 10 }, |
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267 | .find_pll = intel_find_pll_g4x_dp, |
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268 | }; |
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269 | |||
270 | static const intel_limit_t intel_limits_pineview_sdvo = { |
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271 | .dot = { .min = 20000, .max = 400000}, |
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272 | .vco = { .min = 1700000, .max = 3500000 }, |
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273 | /* Pineview's Ncounter is a ring counter */ |
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274 | .n = { .min = 3, .max = 6 }, |
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275 | .m = { .min = 2, .max = 256 }, |
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276 | /* Pineview only has one combined m divider, which we treat as m2. */ |
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277 | .m1 = { .min = 0, .max = 0 }, |
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278 | .m2 = { .min = 0, .max = 254 }, |
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279 | .p = { .min = 5, .max = 80 }, |
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280 | .p1 = { .min = 1, .max = 8 }, |
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281 | .p2 = { .dot_limit = 200000, |
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282 | .p2_slow = 10, .p2_fast = 5 }, |
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283 | .find_pll = intel_find_best_PLL, |
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284 | }; |
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285 | |||
286 | static const intel_limit_t intel_limits_pineview_lvds = { |
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287 | .dot = { .min = 20000, .max = 400000 }, |
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288 | .vco = { .min = 1700000, .max = 3500000 }, |
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289 | .n = { .min = 3, .max = 6 }, |
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290 | .m = { .min = 2, .max = 256 }, |
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291 | .m1 = { .min = 0, .max = 0 }, |
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292 | .m2 = { .min = 0, .max = 254 }, |
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293 | .p = { .min = 7, .max = 112 }, |
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294 | .p1 = { .min = 1, .max = 8 }, |
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295 | .p2 = { .dot_limit = 112000, |
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296 | .p2_slow = 14, .p2_fast = 14 }, |
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297 | .find_pll = intel_find_best_PLL, |
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298 | }; |
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299 | |||
300 | /* Ironlake / Sandybridge |
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301 | * |
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302 | * We calculate clock using (register_value + 2) for N/M1/M2, so here |
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303 | * the range value for them is (actual_value - 2). |
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304 | */ |
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305 | static const intel_limit_t intel_limits_ironlake_dac = { |
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306 | .dot = { .min = 25000, .max = 350000 }, |
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307 | .vco = { .min = 1760000, .max = 3510000 }, |
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308 | .n = { .min = 1, .max = 5 }, |
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309 | .m = { .min = 79, .max = 127 }, |
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310 | .m1 = { .min = 12, .max = 22 }, |
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311 | .m2 = { .min = 5, .max = 9 }, |
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312 | .p = { .min = 5, .max = 80 }, |
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313 | .p1 = { .min = 1, .max = 8 }, |
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314 | .p2 = { .dot_limit = 225000, |
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315 | .p2_slow = 10, .p2_fast = 5 }, |
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316 | .find_pll = intel_g4x_find_best_PLL, |
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317 | }; |
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318 | |||
319 | static const intel_limit_t intel_limits_ironlake_single_lvds = { |
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320 | .dot = { .min = 25000, .max = 350000 }, |
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321 | .vco = { .min = 1760000, .max = 3510000 }, |
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322 | .n = { .min = 1, .max = 3 }, |
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323 | .m = { .min = 79, .max = 118 }, |
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324 | .m1 = { .min = 12, .max = 22 }, |
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325 | .m2 = { .min = 5, .max = 9 }, |
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326 | .p = { .min = 28, .max = 112 }, |
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327 | .p1 = { .min = 2, .max = 8 }, |
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328 | .p2 = { .dot_limit = 225000, |
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329 | .p2_slow = 14, .p2_fast = 14 }, |
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330 | .find_pll = intel_g4x_find_best_PLL, |
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331 | }; |
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332 | |||
333 | static const intel_limit_t intel_limits_ironlake_dual_lvds = { |
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334 | .dot = { .min = 25000, .max = 350000 }, |
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335 | .vco = { .min = 1760000, .max = 3510000 }, |
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336 | .n = { .min = 1, .max = 3 }, |
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337 | .m = { .min = 79, .max = 127 }, |
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338 | .m1 = { .min = 12, .max = 22 }, |
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339 | .m2 = { .min = 5, .max = 9 }, |
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340 | .p = { .min = 14, .max = 56 }, |
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341 | .p1 = { .min = 2, .max = 8 }, |
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342 | .p2 = { .dot_limit = 225000, |
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343 | .p2_slow = 7, .p2_fast = 7 }, |
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344 | .find_pll = intel_g4x_find_best_PLL, |
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345 | }; |
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346 | |||
347 | /* LVDS 100mhz refclk limits. */ |
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348 | static const intel_limit_t intel_limits_ironlake_single_lvds_100m = { |
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349 | .dot = { .min = 25000, .max = 350000 }, |
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350 | .vco = { .min = 1760000, .max = 3510000 }, |
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351 | .n = { .min = 1, .max = 2 }, |
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352 | .m = { .min = 79, .max = 126 }, |
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353 | .m1 = { .min = 12, .max = 22 }, |
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354 | .m2 = { .min = 5, .max = 9 }, |
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355 | .p = { .min = 28, .max = 112 }, |
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2342 | Serge | 356 | .p1 = { .min = 2, .max = 8 }, |
2327 | Serge | 357 | .p2 = { .dot_limit = 225000, |
358 | .p2_slow = 14, .p2_fast = 14 }, |
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359 | .find_pll = intel_g4x_find_best_PLL, |
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360 | }; |
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361 | |||
362 | static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = { |
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363 | .dot = { .min = 25000, .max = 350000 }, |
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364 | .vco = { .min = 1760000, .max = 3510000 }, |
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365 | .n = { .min = 1, .max = 3 }, |
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366 | .m = { .min = 79, .max = 126 }, |
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367 | .m1 = { .min = 12, .max = 22 }, |
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368 | .m2 = { .min = 5, .max = 9 }, |
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369 | .p = { .min = 14, .max = 42 }, |
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2342 | Serge | 370 | .p1 = { .min = 2, .max = 6 }, |
2327 | Serge | 371 | .p2 = { .dot_limit = 225000, |
372 | .p2_slow = 7, .p2_fast = 7 }, |
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373 | .find_pll = intel_g4x_find_best_PLL, |
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374 | }; |
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375 | |||
376 | static const intel_limit_t intel_limits_ironlake_display_port = { |
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377 | .dot = { .min = 25000, .max = 350000 }, |
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378 | .vco = { .min = 1760000, .max = 3510000}, |
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379 | .n = { .min = 1, .max = 2 }, |
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380 | .m = { .min = 81, .max = 90 }, |
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381 | .m1 = { .min = 12, .max = 22 }, |
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382 | .m2 = { .min = 5, .max = 9 }, |
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383 | .p = { .min = 10, .max = 20 }, |
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384 | .p1 = { .min = 1, .max = 2}, |
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385 | .p2 = { .dot_limit = 0, |
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386 | .p2_slow = 10, .p2_fast = 10 }, |
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387 | .find_pll = intel_find_pll_ironlake_dp, |
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388 | }; |
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389 | |||
3031 | serge | 390 | static const intel_limit_t intel_limits_vlv_dac = { |
391 | .dot = { .min = 25000, .max = 270000 }, |
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392 | .vco = { .min = 4000000, .max = 6000000 }, |
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393 | .n = { .min = 1, .max = 7 }, |
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394 | .m = { .min = 22, .max = 450 }, /* guess */ |
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395 | .m1 = { .min = 2, .max = 3 }, |
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396 | .m2 = { .min = 11, .max = 156 }, |
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397 | .p = { .min = 10, .max = 30 }, |
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398 | .p1 = { .min = 2, .max = 3 }, |
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399 | .p2 = { .dot_limit = 270000, |
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400 | .p2_slow = 2, .p2_fast = 20 }, |
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401 | .find_pll = intel_vlv_find_best_pll, |
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402 | }; |
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403 | |||
404 | static const intel_limit_t intel_limits_vlv_hdmi = { |
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405 | .dot = { .min = 20000, .max = 165000 }, |
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406 | .vco = { .min = 5994000, .max = 4000000 }, |
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407 | .n = { .min = 1, .max = 7 }, |
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408 | .m = { .min = 60, .max = 300 }, /* guess */ |
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409 | .m1 = { .min = 2, .max = 3 }, |
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410 | .m2 = { .min = 11, .max = 156 }, |
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411 | .p = { .min = 10, .max = 30 }, |
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412 | .p1 = { .min = 2, .max = 3 }, |
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413 | .p2 = { .dot_limit = 270000, |
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414 | .p2_slow = 2, .p2_fast = 20 }, |
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415 | .find_pll = intel_vlv_find_best_pll, |
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416 | }; |
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417 | |||
418 | static const intel_limit_t intel_limits_vlv_dp = { |
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419 | .dot = { .min = 162000, .max = 270000 }, |
||
420 | .vco = { .min = 5994000, .max = 4000000 }, |
||
421 | .n = { .min = 1, .max = 7 }, |
||
422 | .m = { .min = 60, .max = 300 }, /* guess */ |
||
423 | .m1 = { .min = 2, .max = 3 }, |
||
424 | .m2 = { .min = 11, .max = 156 }, |
||
425 | .p = { .min = 10, .max = 30 }, |
||
426 | .p1 = { .min = 2, .max = 3 }, |
||
427 | .p2 = { .dot_limit = 270000, |
||
428 | .p2_slow = 2, .p2_fast = 20 }, |
||
429 | .find_pll = intel_vlv_find_best_pll, |
||
430 | }; |
||
431 | |||
432 | u32 intel_dpio_read(struct drm_i915_private *dev_priv, int reg) |
||
433 | { |
||
434 | unsigned long flags; |
||
435 | u32 val = 0; |
||
436 | |||
437 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); |
||
438 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) { |
||
439 | DRM_ERROR("DPIO idle wait timed out\n"); |
||
440 | goto out_unlock; |
||
441 | } |
||
442 | |||
443 | I915_WRITE(DPIO_REG, reg); |
||
444 | I915_WRITE(DPIO_PKT, DPIO_RID | DPIO_OP_READ | DPIO_PORTID | |
||
445 | DPIO_BYTE); |
||
446 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) { |
||
447 | DRM_ERROR("DPIO read wait timed out\n"); |
||
448 | goto out_unlock; |
||
449 | } |
||
450 | val = I915_READ(DPIO_DATA); |
||
451 | |||
452 | out_unlock: |
||
453 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); |
||
454 | return val; |
||
455 | } |
||
456 | |||
457 | static void intel_dpio_write(struct drm_i915_private *dev_priv, int reg, |
||
458 | u32 val) |
||
459 | { |
||
460 | unsigned long flags; |
||
461 | |||
462 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); |
||
463 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) { |
||
464 | DRM_ERROR("DPIO idle wait timed out\n"); |
||
465 | goto out_unlock; |
||
466 | } |
||
467 | |||
468 | I915_WRITE(DPIO_DATA, val); |
||
469 | I915_WRITE(DPIO_REG, reg); |
||
470 | I915_WRITE(DPIO_PKT, DPIO_RID | DPIO_OP_WRITE | DPIO_PORTID | |
||
471 | DPIO_BYTE); |
||
472 | if (wait_for_atomic_us((I915_READ(DPIO_PKT) & DPIO_BUSY) == 0, 100)) |
||
473 | DRM_ERROR("DPIO write wait timed out\n"); |
||
474 | |||
475 | out_unlock: |
||
476 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); |
||
477 | } |
||
478 | |||
479 | static void vlv_init_dpio(struct drm_device *dev) |
||
480 | { |
||
481 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
482 | |||
483 | /* Reset the DPIO config */ |
||
484 | I915_WRITE(DPIO_CTL, 0); |
||
485 | POSTING_READ(DPIO_CTL); |
||
486 | I915_WRITE(DPIO_CTL, 1); |
||
487 | POSTING_READ(DPIO_CTL); |
||
488 | } |
||
489 | |||
490 | static int intel_dual_link_lvds_callback(const struct dmi_system_id *id) |
||
491 | { |
||
492 | DRM_INFO("Forcing lvds to dual link mode on %s\n", id->ident); |
||
493 | return 1; |
||
494 | } |
||
495 | |||
496 | static const struct dmi_system_id intel_dual_link_lvds[] = { |
||
497 | { |
||
498 | .callback = intel_dual_link_lvds_callback, |
||
499 | .ident = "Apple MacBook Pro (Core i5/i7 Series)", |
||
500 | .matches = { |
||
501 | DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), |
||
502 | DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro8,2"), |
||
503 | }, |
||
504 | }, |
||
505 | { } /* terminating entry */ |
||
506 | }; |
||
507 | |||
508 | static bool is_dual_link_lvds(struct drm_i915_private *dev_priv, |
||
509 | unsigned int reg) |
||
510 | { |
||
511 | unsigned int val; |
||
512 | |||
513 | /* use the module option value if specified */ |
||
514 | if (i915_lvds_channel_mode > 0) |
||
515 | return i915_lvds_channel_mode == 2; |
||
516 | |||
517 | // if (dmi_check_system(intel_dual_link_lvds)) |
||
518 | // return true; |
||
519 | |||
520 | if (dev_priv->lvds_val) |
||
521 | val = dev_priv->lvds_val; |
||
522 | else { |
||
523 | /* BIOS should set the proper LVDS register value at boot, but |
||
524 | * in reality, it doesn't set the value when the lid is closed; |
||
525 | * we need to check "the value to be set" in VBT when LVDS |
||
526 | * register is uninitialized. |
||
527 | */ |
||
528 | val = I915_READ(reg); |
||
529 | if (!(val & ~(LVDS_PIPE_MASK | LVDS_DETECTED))) |
||
530 | val = dev_priv->bios_lvds_val; |
||
531 | dev_priv->lvds_val = val; |
||
532 | } |
||
533 | return (val & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP; |
||
534 | } |
||
535 | |||
2327 | Serge | 536 | static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc, |
537 | int refclk) |
||
538 | { |
||
539 | struct drm_device *dev = crtc->dev; |
||
540 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
541 | const intel_limit_t *limit; |
||
542 | |||
543 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
||
3031 | serge | 544 | if (is_dual_link_lvds(dev_priv, PCH_LVDS)) { |
2327 | Serge | 545 | /* LVDS dual channel */ |
546 | if (refclk == 100000) |
||
547 | limit = &intel_limits_ironlake_dual_lvds_100m; |
||
548 | else |
||
549 | limit = &intel_limits_ironlake_dual_lvds; |
||
550 | } else { |
||
551 | if (refclk == 100000) |
||
552 | limit = &intel_limits_ironlake_single_lvds_100m; |
||
553 | else |
||
554 | limit = &intel_limits_ironlake_single_lvds; |
||
555 | } |
||
556 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || |
||
557 | HAS_eDP) |
||
558 | limit = &intel_limits_ironlake_display_port; |
||
559 | else |
||
560 | limit = &intel_limits_ironlake_dac; |
||
561 | |||
562 | return limit; |
||
563 | } |
||
564 | |||
565 | static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc) |
||
566 | { |
||
567 | struct drm_device *dev = crtc->dev; |
||
568 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
569 | const intel_limit_t *limit; |
||
570 | |||
571 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
||
3031 | serge | 572 | if (is_dual_link_lvds(dev_priv, LVDS)) |
2327 | Serge | 573 | /* LVDS with dual channel */ |
574 | limit = &intel_limits_g4x_dual_channel_lvds; |
||
575 | else |
||
576 | /* LVDS with dual channel */ |
||
577 | limit = &intel_limits_g4x_single_channel_lvds; |
||
578 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) || |
||
579 | intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { |
||
580 | limit = &intel_limits_g4x_hdmi; |
||
581 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) { |
||
582 | limit = &intel_limits_g4x_sdvo; |
||
2342 | Serge | 583 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
2327 | Serge | 584 | limit = &intel_limits_g4x_display_port; |
585 | } else /* The option is for other outputs */ |
||
586 | limit = &intel_limits_i9xx_sdvo; |
||
587 | |||
588 | return limit; |
||
589 | } |
||
590 | |||
591 | static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk) |
||
592 | { |
||
593 | struct drm_device *dev = crtc->dev; |
||
594 | const intel_limit_t *limit; |
||
595 | |||
596 | if (HAS_PCH_SPLIT(dev)) |
||
597 | limit = intel_ironlake_limit(crtc, refclk); |
||
598 | else if (IS_G4X(dev)) { |
||
599 | limit = intel_g4x_limit(crtc); |
||
600 | } else if (IS_PINEVIEW(dev)) { |
||
601 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
||
602 | limit = &intel_limits_pineview_lvds; |
||
603 | else |
||
604 | limit = &intel_limits_pineview_sdvo; |
||
3031 | serge | 605 | } else if (IS_VALLEYVIEW(dev)) { |
606 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) |
||
607 | limit = &intel_limits_vlv_dac; |
||
608 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) |
||
609 | limit = &intel_limits_vlv_hdmi; |
||
610 | else |
||
611 | limit = &intel_limits_vlv_dp; |
||
2327 | Serge | 612 | } else if (!IS_GEN2(dev)) { |
613 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
||
614 | limit = &intel_limits_i9xx_lvds; |
||
615 | else |
||
616 | limit = &intel_limits_i9xx_sdvo; |
||
617 | } else { |
||
618 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
||
619 | limit = &intel_limits_i8xx_lvds; |
||
620 | else |
||
621 | limit = &intel_limits_i8xx_dvo; |
||
622 | } |
||
623 | return limit; |
||
624 | } |
||
625 | |||
626 | /* m1 is reserved as 0 in Pineview, n is a ring counter */ |
||
627 | static void pineview_clock(int refclk, intel_clock_t *clock) |
||
628 | { |
||
629 | clock->m = clock->m2 + 2; |
||
630 | clock->p = clock->p1 * clock->p2; |
||
631 | clock->vco = refclk * clock->m / clock->n; |
||
632 | clock->dot = clock->vco / clock->p; |
||
633 | } |
||
634 | |||
635 | static void intel_clock(struct drm_device *dev, int refclk, intel_clock_t *clock) |
||
636 | { |
||
637 | if (IS_PINEVIEW(dev)) { |
||
638 | pineview_clock(refclk, clock); |
||
639 | return; |
||
640 | } |
||
641 | clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2); |
||
642 | clock->p = clock->p1 * clock->p2; |
||
643 | clock->vco = refclk * clock->m / (clock->n + 2); |
||
644 | clock->dot = clock->vco / clock->p; |
||
645 | } |
||
646 | |||
647 | /** |
||
648 | * Returns whether any output on the specified pipe is of the specified type |
||
649 | */ |
||
650 | bool intel_pipe_has_type(struct drm_crtc *crtc, int type) |
||
651 | { |
||
652 | struct drm_device *dev = crtc->dev; |
||
653 | struct intel_encoder *encoder; |
||
654 | |||
3031 | serge | 655 | for_each_encoder_on_crtc(dev, crtc, encoder) |
656 | if (encoder->type == type) |
||
2327 | Serge | 657 | return true; |
658 | |||
659 | return false; |
||
660 | } |
||
661 | |||
662 | #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) |
||
663 | /** |
||
664 | * Returns whether the given set of divisors are valid for a given refclk with |
||
665 | * the given connectors. |
||
666 | */ |
||
667 | |||
668 | static bool intel_PLL_is_valid(struct drm_device *dev, |
||
669 | const intel_limit_t *limit, |
||
670 | const intel_clock_t *clock) |
||
671 | { |
||
672 | if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1) |
||
2342 | Serge | 673 | INTELPllInvalid("p1 out of range\n"); |
2327 | Serge | 674 | if (clock->p < limit->p.min || limit->p.max < clock->p) |
2342 | Serge | 675 | INTELPllInvalid("p out of range\n"); |
2327 | Serge | 676 | if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2) |
2342 | Serge | 677 | INTELPllInvalid("m2 out of range\n"); |
2327 | Serge | 678 | if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1) |
2342 | Serge | 679 | INTELPllInvalid("m1 out of range\n"); |
2327 | Serge | 680 | if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev)) |
2342 | Serge | 681 | INTELPllInvalid("m1 <= m2\n"); |
2327 | Serge | 682 | if (clock->m < limit->m.min || limit->m.max < clock->m) |
2342 | Serge | 683 | INTELPllInvalid("m out of range\n"); |
2327 | Serge | 684 | if (clock->n < limit->n.min || limit->n.max < clock->n) |
2342 | Serge | 685 | INTELPllInvalid("n out of range\n"); |
2327 | Serge | 686 | if (clock->vco < limit->vco.min || limit->vco.max < clock->vco) |
2342 | Serge | 687 | INTELPllInvalid("vco out of range\n"); |
2327 | Serge | 688 | /* XXX: We may need to be checking "Dot clock" depending on the multiplier, |
689 | * connector, etc., rather than just a single range. |
||
690 | */ |
||
691 | if (clock->dot < limit->dot.min || limit->dot.max < clock->dot) |
||
2342 | Serge | 692 | INTELPllInvalid("dot out of range\n"); |
2327 | Serge | 693 | |
694 | return true; |
||
695 | } |
||
696 | |||
697 | static bool |
||
698 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, |
||
3031 | serge | 699 | int target, int refclk, intel_clock_t *match_clock, |
700 | intel_clock_t *best_clock) |
||
2327 | Serge | 701 | |
702 | { |
||
703 | struct drm_device *dev = crtc->dev; |
||
704 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
705 | intel_clock_t clock; |
||
706 | int err = target; |
||
707 | |||
708 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && |
||
709 | (I915_READ(LVDS)) != 0) { |
||
710 | /* |
||
711 | * For LVDS, if the panel is on, just rely on its current |
||
712 | * settings for dual-channel. We haven't figured out how to |
||
713 | * reliably set up different single/dual channel state, if we |
||
714 | * even can. |
||
715 | */ |
||
3031 | serge | 716 | if (is_dual_link_lvds(dev_priv, LVDS)) |
2327 | Serge | 717 | clock.p2 = limit->p2.p2_fast; |
718 | else |
||
719 | clock.p2 = limit->p2.p2_slow; |
||
720 | } else { |
||
721 | if (target < limit->p2.dot_limit) |
||
722 | clock.p2 = limit->p2.p2_slow; |
||
723 | else |
||
724 | clock.p2 = limit->p2.p2_fast; |
||
725 | } |
||
726 | |||
2342 | Serge | 727 | memset(best_clock, 0, sizeof(*best_clock)); |
2327 | Serge | 728 | |
729 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
||
730 | clock.m1++) { |
||
731 | for (clock.m2 = limit->m2.min; |
||
732 | clock.m2 <= limit->m2.max; clock.m2++) { |
||
733 | /* m1 is always 0 in Pineview */ |
||
734 | if (clock.m2 >= clock.m1 && !IS_PINEVIEW(dev)) |
||
735 | break; |
||
736 | for (clock.n = limit->n.min; |
||
737 | clock.n <= limit->n.max; clock.n++) { |
||
738 | for (clock.p1 = limit->p1.min; |
||
739 | clock.p1 <= limit->p1.max; clock.p1++) { |
||
740 | int this_err; |
||
741 | |||
742 | intel_clock(dev, refclk, &clock); |
||
743 | if (!intel_PLL_is_valid(dev, limit, |
||
744 | &clock)) |
||
745 | continue; |
||
3031 | serge | 746 | if (match_clock && |
747 | clock.p != match_clock->p) |
||
748 | continue; |
||
2327 | Serge | 749 | |
750 | this_err = abs(clock.dot - target); |
||
751 | if (this_err < err) { |
||
752 | *best_clock = clock; |
||
753 | err = this_err; |
||
754 | } |
||
755 | } |
||
756 | } |
||
757 | } |
||
758 | } |
||
759 | |||
760 | return (err != target); |
||
761 | } |
||
762 | |||
763 | static bool |
||
764 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, |
||
3031 | serge | 765 | int target, int refclk, intel_clock_t *match_clock, |
766 | intel_clock_t *best_clock) |
||
2327 | Serge | 767 | { |
768 | struct drm_device *dev = crtc->dev; |
||
769 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
770 | intel_clock_t clock; |
||
771 | int max_n; |
||
772 | bool found; |
||
773 | /* approximately equals target * 0.00585 */ |
||
774 | int err_most = (target >> 8) + (target >> 9); |
||
775 | found = false; |
||
776 | |||
777 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
||
778 | int lvds_reg; |
||
779 | |||
780 | if (HAS_PCH_SPLIT(dev)) |
||
781 | lvds_reg = PCH_LVDS; |
||
782 | else |
||
783 | lvds_reg = LVDS; |
||
784 | if ((I915_READ(lvds_reg) & LVDS_CLKB_POWER_MASK) == |
||
785 | LVDS_CLKB_POWER_UP) |
||
786 | clock.p2 = limit->p2.p2_fast; |
||
787 | else |
||
788 | clock.p2 = limit->p2.p2_slow; |
||
789 | } else { |
||
790 | if (target < limit->p2.dot_limit) |
||
791 | clock.p2 = limit->p2.p2_slow; |
||
792 | else |
||
793 | clock.p2 = limit->p2.p2_fast; |
||
794 | } |
||
795 | |||
796 | memset(best_clock, 0, sizeof(*best_clock)); |
||
797 | max_n = limit->n.max; |
||
798 | /* based on hardware requirement, prefer smaller n to precision */ |
||
799 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
||
800 | /* based on hardware requirement, prefere larger m1,m2 */ |
||
801 | for (clock.m1 = limit->m1.max; |
||
802 | clock.m1 >= limit->m1.min; clock.m1--) { |
||
803 | for (clock.m2 = limit->m2.max; |
||
804 | clock.m2 >= limit->m2.min; clock.m2--) { |
||
805 | for (clock.p1 = limit->p1.max; |
||
806 | clock.p1 >= limit->p1.min; clock.p1--) { |
||
807 | int this_err; |
||
808 | |||
809 | intel_clock(dev, refclk, &clock); |
||
810 | if (!intel_PLL_is_valid(dev, limit, |
||
811 | &clock)) |
||
812 | continue; |
||
3031 | serge | 813 | if (match_clock && |
814 | clock.p != match_clock->p) |
||
815 | continue; |
||
2327 | Serge | 816 | |
817 | this_err = abs(clock.dot - target); |
||
818 | if (this_err < err_most) { |
||
819 | *best_clock = clock; |
||
820 | err_most = this_err; |
||
821 | max_n = clock.n; |
||
822 | found = true; |
||
823 | } |
||
824 | } |
||
825 | } |
||
826 | } |
||
827 | } |
||
828 | return found; |
||
829 | } |
||
830 | |||
831 | static bool |
||
832 | intel_find_pll_ironlake_dp(const intel_limit_t *limit, struct drm_crtc *crtc, |
||
3031 | serge | 833 | int target, int refclk, intel_clock_t *match_clock, |
834 | intel_clock_t *best_clock) |
||
2327 | Serge | 835 | { |
836 | struct drm_device *dev = crtc->dev; |
||
837 | intel_clock_t clock; |
||
838 | |||
839 | if (target < 200000) { |
||
840 | clock.n = 1; |
||
841 | clock.p1 = 2; |
||
842 | clock.p2 = 10; |
||
843 | clock.m1 = 12; |
||
844 | clock.m2 = 9; |
||
845 | } else { |
||
846 | clock.n = 2; |
||
847 | clock.p1 = 1; |
||
848 | clock.p2 = 10; |
||
849 | clock.m1 = 14; |
||
850 | clock.m2 = 8; |
||
851 | } |
||
852 | intel_clock(dev, refclk, &clock); |
||
853 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); |
||
854 | return true; |
||
855 | } |
||
856 | |||
857 | /* DisplayPort has only two frequencies, 162MHz and 270MHz */ |
||
858 | static bool |
||
859 | intel_find_pll_g4x_dp(const intel_limit_t *limit, struct drm_crtc *crtc, |
||
3031 | serge | 860 | int target, int refclk, intel_clock_t *match_clock, |
861 | intel_clock_t *best_clock) |
||
2327 | Serge | 862 | { |
863 | intel_clock_t clock; |
||
864 | if (target < 200000) { |
||
865 | clock.p1 = 2; |
||
866 | clock.p2 = 10; |
||
867 | clock.n = 2; |
||
868 | clock.m1 = 23; |
||
869 | clock.m2 = 8; |
||
870 | } else { |
||
871 | clock.p1 = 1; |
||
872 | clock.p2 = 10; |
||
873 | clock.n = 1; |
||
874 | clock.m1 = 14; |
||
875 | clock.m2 = 2; |
||
876 | } |
||
877 | clock.m = 5 * (clock.m1 + 2) + (clock.m2 + 2); |
||
878 | clock.p = (clock.p1 * clock.p2); |
||
879 | clock.dot = 96000 * clock.m / (clock.n + 2) / clock.p; |
||
880 | clock.vco = 0; |
||
881 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); |
||
882 | return true; |
||
883 | } |
||
3031 | serge | 884 | static bool |
885 | intel_vlv_find_best_pll(const intel_limit_t *limit, struct drm_crtc *crtc, |
||
886 | int target, int refclk, intel_clock_t *match_clock, |
||
887 | intel_clock_t *best_clock) |
||
888 | { |
||
889 | u32 p1, p2, m1, m2, vco, bestn, bestm1, bestm2, bestp1, bestp2; |
||
890 | u32 m, n, fastclk; |
||
891 | u32 updrate, minupdate, fracbits, p; |
||
892 | unsigned long bestppm, ppm, absppm; |
||
893 | int dotclk, flag; |
||
2327 | Serge | 894 | |
3031 | serge | 895 | flag = 0; |
896 | dotclk = target * 1000; |
||
897 | bestppm = 1000000; |
||
898 | ppm = absppm = 0; |
||
899 | fastclk = dotclk / (2*100); |
||
900 | updrate = 0; |
||
901 | minupdate = 19200; |
||
902 | fracbits = 1; |
||
903 | n = p = p1 = p2 = m = m1 = m2 = vco = bestn = 0; |
||
904 | bestm1 = bestm2 = bestp1 = bestp2 = 0; |
||
905 | |||
906 | /* based on hardware requirement, prefer smaller n to precision */ |
||
907 | for (n = limit->n.min; n <= ((refclk) / minupdate); n++) { |
||
908 | updrate = refclk / n; |
||
909 | for (p1 = limit->p1.max; p1 > limit->p1.min; p1--) { |
||
910 | for (p2 = limit->p2.p2_fast+1; p2 > 0; p2--) { |
||
911 | if (p2 > 10) |
||
912 | p2 = p2 - 1; |
||
913 | p = p1 * p2; |
||
914 | /* based on hardware requirement, prefer bigger m1,m2 values */ |
||
915 | for (m1 = limit->m1.min; m1 <= limit->m1.max; m1++) { |
||
916 | m2 = (((2*(fastclk * p * n / m1 )) + |
||
917 | refclk) / (2*refclk)); |
||
918 | m = m1 * m2; |
||
919 | vco = updrate * m; |
||
920 | if (vco >= limit->vco.min && vco < limit->vco.max) { |
||
921 | ppm = 1000000 * ((vco / p) - fastclk) / fastclk; |
||
922 | absppm = (ppm > 0) ? ppm : (-ppm); |
||
923 | if (absppm < 100 && ((p1 * p2) > (bestp1 * bestp2))) { |
||
924 | bestppm = 0; |
||
925 | flag = 1; |
||
926 | } |
||
927 | if (absppm < bestppm - 10) { |
||
928 | bestppm = absppm; |
||
929 | flag = 1; |
||
930 | } |
||
931 | if (flag) { |
||
932 | bestn = n; |
||
933 | bestm1 = m1; |
||
934 | bestm2 = m2; |
||
935 | bestp1 = p1; |
||
936 | bestp2 = p2; |
||
937 | flag = 0; |
||
938 | } |
||
939 | } |
||
940 | } |
||
941 | } |
||
942 | } |
||
943 | } |
||
944 | best_clock->n = bestn; |
||
945 | best_clock->m1 = bestm1; |
||
946 | best_clock->m2 = bestm2; |
||
947 | best_clock->p1 = bestp1; |
||
948 | best_clock->p2 = bestp2; |
||
949 | |||
950 | return true; |
||
951 | } |
||
952 | |||
953 | static void ironlake_wait_for_vblank(struct drm_device *dev, int pipe) |
||
954 | { |
||
955 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
956 | u32 frame, frame_reg = PIPEFRAME(pipe); |
||
957 | |||
958 | frame = I915_READ(frame_reg); |
||
959 | |||
960 | if (wait_for(I915_READ_NOTRACE(frame_reg) != frame, 50)) |
||
961 | DRM_DEBUG_KMS("vblank wait timed out\n"); |
||
962 | } |
||
963 | |||
2327 | Serge | 964 | /** |
965 | * intel_wait_for_vblank - wait for vblank on a given pipe |
||
966 | * @dev: drm device |
||
967 | * @pipe: pipe to wait for |
||
968 | * |
||
969 | * Wait for vblank to occur on a given pipe. Needed for various bits of |
||
970 | * mode setting code. |
||
971 | */ |
||
972 | void intel_wait_for_vblank(struct drm_device *dev, int pipe) |
||
973 | { |
||
974 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
975 | int pipestat_reg = PIPESTAT(pipe); |
||
976 | |||
3031 | serge | 977 | if (INTEL_INFO(dev)->gen >= 5) { |
978 | ironlake_wait_for_vblank(dev, pipe); |
||
979 | return; |
||
980 | } |
||
981 | |||
2327 | Serge | 982 | /* Clear existing vblank status. Note this will clear any other |
983 | * sticky status fields as well. |
||
984 | * |
||
985 | * This races with i915_driver_irq_handler() with the result |
||
986 | * that either function could miss a vblank event. Here it is not |
||
987 | * fatal, as we will either wait upon the next vblank interrupt or |
||
988 | * timeout. Generally speaking intel_wait_for_vblank() is only |
||
989 | * called during modeset at which time the GPU should be idle and |
||
990 | * should *not* be performing page flips and thus not waiting on |
||
991 | * vblanks... |
||
992 | * Currently, the result of us stealing a vblank from the irq |
||
993 | * handler is that a single frame will be skipped during swapbuffers. |
||
994 | */ |
||
995 | I915_WRITE(pipestat_reg, |
||
996 | I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS); |
||
997 | |||
998 | /* Wait for vblank interrupt bit to set */ |
||
999 | if (wait_for(I915_READ(pipestat_reg) & |
||
1000 | PIPE_VBLANK_INTERRUPT_STATUS, |
||
1001 | 50)) |
||
1002 | DRM_DEBUG_KMS("vblank wait timed out\n"); |
||
1003 | } |
||
1004 | |||
1005 | /* |
||
1006 | * intel_wait_for_pipe_off - wait for pipe to turn off |
||
1007 | * @dev: drm device |
||
1008 | * @pipe: pipe to wait for |
||
1009 | * |
||
1010 | * After disabling a pipe, we can't wait for vblank in the usual way, |
||
1011 | * spinning on the vblank interrupt status bit, since we won't actually |
||
1012 | * see an interrupt when the pipe is disabled. |
||
1013 | * |
||
1014 | * On Gen4 and above: |
||
1015 | * wait for the pipe register state bit to turn off |
||
1016 | * |
||
1017 | * Otherwise: |
||
1018 | * wait for the display line value to settle (it usually |
||
1019 | * ends up stopping at the start of the next frame). |
||
1020 | * |
||
1021 | */ |
||
1022 | void intel_wait_for_pipe_off(struct drm_device *dev, int pipe) |
||
1023 | { |
||
1024 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
1025 | |||
1026 | if (INTEL_INFO(dev)->gen >= 4) { |
||
1027 | int reg = PIPECONF(pipe); |
||
1028 | |||
1029 | /* Wait for the Pipe State to go off */ |
||
1030 | if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0, |
||
1031 | 100)) |
||
3031 | serge | 1032 | WARN(1, "pipe_off wait timed out\n"); |
2327 | Serge | 1033 | } else { |
3031 | serge | 1034 | u32 last_line, line_mask; |
2327 | Serge | 1035 | int reg = PIPEDSL(pipe); |
3031 | serge | 1036 | unsigned long timeout = GetTimerTicks() + msecs_to_jiffies(100); |
2327 | Serge | 1037 | |
3031 | serge | 1038 | if (IS_GEN2(dev)) |
1039 | line_mask = DSL_LINEMASK_GEN2; |
||
1040 | else |
||
1041 | line_mask = DSL_LINEMASK_GEN3; |
||
1042 | |||
2327 | Serge | 1043 | /* Wait for the display line to settle */ |
1044 | do { |
||
3031 | serge | 1045 | last_line = I915_READ(reg) & line_mask; |
2327 | Serge | 1046 | mdelay(5); |
3031 | serge | 1047 | } while (((I915_READ(reg) & line_mask) != last_line) && |
1048 | time_after(timeout, GetTimerTicks())); |
||
1049 | if (time_after(GetTimerTicks(), timeout)) |
||
1050 | WARN(1, "pipe_off wait timed out\n"); |
||
2327 | Serge | 1051 | } |
1052 | } |
||
1053 | |||
1054 | static const char *state_string(bool enabled) |
||
1055 | { |
||
1056 | return enabled ? "on" : "off"; |
||
1057 | } |
||
1058 | |||
1059 | /* Only for pre-ILK configs */ |
||
1060 | static void assert_pll(struct drm_i915_private *dev_priv, |
||
1061 | enum pipe pipe, bool state) |
||
1062 | { |
||
1063 | int reg; |
||
1064 | u32 val; |
||
1065 | bool cur_state; |
||
1066 | |||
1067 | reg = DPLL(pipe); |
||
1068 | val = I915_READ(reg); |
||
1069 | cur_state = !!(val & DPLL_VCO_ENABLE); |
||
1070 | WARN(cur_state != state, |
||
1071 | "PLL state assertion failure (expected %s, current %s)\n", |
||
1072 | state_string(state), state_string(cur_state)); |
||
1073 | } |
||
1074 | #define assert_pll_enabled(d, p) assert_pll(d, p, true) |
||
1075 | #define assert_pll_disabled(d, p) assert_pll(d, p, false) |
||
1076 | |||
1077 | /* For ILK+ */ |
||
1078 | static void assert_pch_pll(struct drm_i915_private *dev_priv, |
||
3031 | serge | 1079 | struct intel_pch_pll *pll, |
1080 | struct intel_crtc *crtc, |
||
1081 | bool state) |
||
2327 | Serge | 1082 | { |
1083 | u32 val; |
||
1084 | bool cur_state; |
||
1085 | |||
3031 | serge | 1086 | if (HAS_PCH_LPT(dev_priv->dev)) { |
1087 | DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n"); |
||
1088 | return; |
||
1089 | } |
||
2342 | Serge | 1090 | |
3031 | serge | 1091 | if (WARN (!pll, |
1092 | "asserting PCH PLL %s with no PLL\n", state_string(state))) |
||
1093 | return; |
||
2342 | Serge | 1094 | |
3031 | serge | 1095 | val = I915_READ(pll->pll_reg); |
1096 | cur_state = !!(val & DPLL_VCO_ENABLE); |
||
1097 | WARN(cur_state != state, |
||
1098 | "PCH PLL state for reg %x assertion failure (expected %s, current %s), val=%08x\n", |
||
1099 | pll->pll_reg, state_string(state), state_string(cur_state), val); |
||
2342 | Serge | 1100 | |
3031 | serge | 1101 | /* Make sure the selected PLL is correctly attached to the transcoder */ |
1102 | if (crtc && HAS_PCH_CPT(dev_priv->dev)) { |
||
1103 | u32 pch_dpll; |
||
2342 | Serge | 1104 | |
3031 | serge | 1105 | pch_dpll = I915_READ(PCH_DPLL_SEL); |
1106 | cur_state = pll->pll_reg == _PCH_DPLL_B; |
||
1107 | if (!WARN(((pch_dpll >> (4 * crtc->pipe)) & 1) != cur_state, |
||
1108 | "PLL[%d] not attached to this transcoder %d: %08x\n", |
||
1109 | cur_state, crtc->pipe, pch_dpll)) { |
||
1110 | cur_state = !!(val >> (4*crtc->pipe + 3)); |
||
2327 | Serge | 1111 | WARN(cur_state != state, |
3031 | serge | 1112 | "PLL[%d] not %s on this transcoder %d: %08x\n", |
1113 | pll->pll_reg == _PCH_DPLL_B, |
||
1114 | state_string(state), |
||
1115 | crtc->pipe, |
||
1116 | val); |
||
1117 | } |
||
1118 | } |
||
2327 | Serge | 1119 | } |
3031 | serge | 1120 | #define assert_pch_pll_enabled(d, p, c) assert_pch_pll(d, p, c, true) |
1121 | #define assert_pch_pll_disabled(d, p, c) assert_pch_pll(d, p, c, false) |
||
2327 | Serge | 1122 | |
1123 | static void assert_fdi_tx(struct drm_i915_private *dev_priv, |
||
1124 | enum pipe pipe, bool state) |
||
1125 | { |
||
1126 | int reg; |
||
1127 | u32 val; |
||
1128 | bool cur_state; |
||
1129 | |||
3031 | serge | 1130 | if (IS_HASWELL(dev_priv->dev)) { |
1131 | /* On Haswell, DDI is used instead of FDI_TX_CTL */ |
||
1132 | reg = DDI_FUNC_CTL(pipe); |
||
1133 | val = I915_READ(reg); |
||
1134 | cur_state = !!(val & PIPE_DDI_FUNC_ENABLE); |
||
1135 | } else { |
||
2327 | Serge | 1136 | reg = FDI_TX_CTL(pipe); |
1137 | val = I915_READ(reg); |
||
1138 | cur_state = !!(val & FDI_TX_ENABLE); |
||
3031 | serge | 1139 | } |
2327 | Serge | 1140 | WARN(cur_state != state, |
1141 | "FDI TX state assertion failure (expected %s, current %s)\n", |
||
1142 | state_string(state), state_string(cur_state)); |
||
1143 | } |
||
1144 | #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true) |
||
1145 | #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false) |
||
1146 | |||
1147 | static void assert_fdi_rx(struct drm_i915_private *dev_priv, |
||
1148 | enum pipe pipe, bool state) |
||
1149 | { |
||
1150 | int reg; |
||
1151 | u32 val; |
||
1152 | bool cur_state; |
||
1153 | |||
3031 | serge | 1154 | if (IS_HASWELL(dev_priv->dev) && pipe > 0) { |
1155 | DRM_ERROR("Attempting to enable FDI_RX on Haswell pipe > 0\n"); |
||
1156 | return; |
||
1157 | } else { |
||
2327 | Serge | 1158 | reg = FDI_RX_CTL(pipe); |
1159 | val = I915_READ(reg); |
||
1160 | cur_state = !!(val & FDI_RX_ENABLE); |
||
3031 | serge | 1161 | } |
2327 | Serge | 1162 | WARN(cur_state != state, |
1163 | "FDI RX state assertion failure (expected %s, current %s)\n", |
||
1164 | state_string(state), state_string(cur_state)); |
||
1165 | } |
||
1166 | #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true) |
||
1167 | #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false) |
||
1168 | |||
1169 | static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv, |
||
1170 | enum pipe pipe) |
||
1171 | { |
||
1172 | int reg; |
||
1173 | u32 val; |
||
1174 | |||
1175 | /* ILK FDI PLL is always enabled */ |
||
1176 | if (dev_priv->info->gen == 5) |
||
1177 | return; |
||
1178 | |||
3031 | serge | 1179 | /* On Haswell, DDI ports are responsible for the FDI PLL setup */ |
1180 | if (IS_HASWELL(dev_priv->dev)) |
||
1181 | return; |
||
1182 | |||
2327 | Serge | 1183 | reg = FDI_TX_CTL(pipe); |
1184 | val = I915_READ(reg); |
||
1185 | WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n"); |
||
1186 | } |
||
1187 | |||
1188 | static void assert_fdi_rx_pll_enabled(struct drm_i915_private *dev_priv, |
||
1189 | enum pipe pipe) |
||
1190 | { |
||
1191 | int reg; |
||
1192 | u32 val; |
||
1193 | |||
3031 | serge | 1194 | if (IS_HASWELL(dev_priv->dev) && pipe > 0) { |
1195 | DRM_ERROR("Attempting to enable FDI on Haswell with pipe > 0\n"); |
||
1196 | return; |
||
1197 | } |
||
2327 | Serge | 1198 | reg = FDI_RX_CTL(pipe); |
1199 | val = I915_READ(reg); |
||
1200 | WARN(!(val & FDI_RX_PLL_ENABLE), "FDI RX PLL assertion failure, should be active but is disabled\n"); |
||
1201 | } |
||
1202 | |||
1203 | static void assert_panel_unlocked(struct drm_i915_private *dev_priv, |
||
1204 | enum pipe pipe) |
||
1205 | { |
||
1206 | int pp_reg, lvds_reg; |
||
1207 | u32 val; |
||
1208 | enum pipe panel_pipe = PIPE_A; |
||
1209 | bool locked = true; |
||
1210 | |||
1211 | if (HAS_PCH_SPLIT(dev_priv->dev)) { |
||
1212 | pp_reg = PCH_PP_CONTROL; |
||
1213 | lvds_reg = PCH_LVDS; |
||
1214 | } else { |
||
1215 | pp_reg = PP_CONTROL; |
||
1216 | lvds_reg = LVDS; |
||
1217 | } |
||
1218 | |||
1219 | val = I915_READ(pp_reg); |
||
1220 | if (!(val & PANEL_POWER_ON) || |
||
1221 | ((val & PANEL_UNLOCK_REGS) == PANEL_UNLOCK_REGS)) |
||
1222 | locked = false; |
||
1223 | |||
1224 | if (I915_READ(lvds_reg) & LVDS_PIPEB_SELECT) |
||
1225 | panel_pipe = PIPE_B; |
||
1226 | |||
1227 | WARN(panel_pipe == pipe && locked, |
||
1228 | "panel assertion failure, pipe %c regs locked\n", |
||
1229 | pipe_name(pipe)); |
||
1230 | } |
||
1231 | |||
2342 | Serge | 1232 | void assert_pipe(struct drm_i915_private *dev_priv, |
2327 | Serge | 1233 | enum pipe pipe, bool state) |
1234 | { |
||
1235 | int reg; |
||
1236 | u32 val; |
||
1237 | bool cur_state; |
||
1238 | |||
3031 | serge | 1239 | /* if we need the pipe A quirk it must be always on */ |
1240 | if (pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) |
||
1241 | state = true; |
||
1242 | |||
2327 | Serge | 1243 | reg = PIPECONF(pipe); |
1244 | val = I915_READ(reg); |
||
1245 | cur_state = !!(val & PIPECONF_ENABLE); |
||
1246 | WARN(cur_state != state, |
||
1247 | "pipe %c assertion failure (expected %s, current %s)\n", |
||
1248 | pipe_name(pipe), state_string(state), state_string(cur_state)); |
||
1249 | } |
||
1250 | |||
3031 | serge | 1251 | static void assert_plane(struct drm_i915_private *dev_priv, |
1252 | enum plane plane, bool state) |
||
2327 | Serge | 1253 | { |
1254 | int reg; |
||
1255 | u32 val; |
||
3031 | serge | 1256 | bool cur_state; |
2327 | Serge | 1257 | |
1258 | reg = DSPCNTR(plane); |
||
1259 | val = I915_READ(reg); |
||
3031 | serge | 1260 | cur_state = !!(val & DISPLAY_PLANE_ENABLE); |
1261 | WARN(cur_state != state, |
||
1262 | "plane %c assertion failure (expected %s, current %s)\n", |
||
1263 | plane_name(plane), state_string(state), state_string(cur_state)); |
||
2327 | Serge | 1264 | } |
1265 | |||
3031 | serge | 1266 | #define assert_plane_enabled(d, p) assert_plane(d, p, true) |
1267 | #define assert_plane_disabled(d, p) assert_plane(d, p, false) |
||
1268 | |||
2327 | Serge | 1269 | static void assert_planes_disabled(struct drm_i915_private *dev_priv, |
1270 | enum pipe pipe) |
||
1271 | { |
||
1272 | int reg, i; |
||
1273 | u32 val; |
||
1274 | int cur_pipe; |
||
1275 | |||
1276 | /* Planes are fixed to pipes on ILK+ */ |
||
3031 | serge | 1277 | if (HAS_PCH_SPLIT(dev_priv->dev)) { |
1278 | reg = DSPCNTR(pipe); |
||
1279 | val = I915_READ(reg); |
||
1280 | WARN((val & DISPLAY_PLANE_ENABLE), |
||
1281 | "plane %c assertion failure, should be disabled but not\n", |
||
1282 | plane_name(pipe)); |
||
2327 | Serge | 1283 | return; |
3031 | serge | 1284 | } |
2327 | Serge | 1285 | |
1286 | /* Need to check both planes against the pipe */ |
||
1287 | for (i = 0; i < 2; i++) { |
||
1288 | reg = DSPCNTR(i); |
||
1289 | val = I915_READ(reg); |
||
1290 | cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >> |
||
1291 | DISPPLANE_SEL_PIPE_SHIFT; |
||
1292 | WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe, |
||
1293 | "plane %c assertion failure, should be off on pipe %c but is still active\n", |
||
1294 | plane_name(i), pipe_name(pipe)); |
||
1295 | } |
||
1296 | } |
||
1297 | |||
1298 | static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv) |
||
1299 | { |
||
1300 | u32 val; |
||
1301 | bool enabled; |
||
1302 | |||
3031 | serge | 1303 | if (HAS_PCH_LPT(dev_priv->dev)) { |
1304 | DRM_DEBUG_DRIVER("LPT does not has PCH refclk, skipping check\n"); |
||
1305 | return; |
||
1306 | } |
||
1307 | |||
2327 | Serge | 1308 | val = I915_READ(PCH_DREF_CONTROL); |
1309 | enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK | |
||
1310 | DREF_SUPERSPREAD_SOURCE_MASK)); |
||
1311 | WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n"); |
||
1312 | } |
||
1313 | |||
1314 | static void assert_transcoder_disabled(struct drm_i915_private *dev_priv, |
||
1315 | enum pipe pipe) |
||
1316 | { |
||
1317 | int reg; |
||
1318 | u32 val; |
||
1319 | bool enabled; |
||
1320 | |||
1321 | reg = TRANSCONF(pipe); |
||
1322 | val = I915_READ(reg); |
||
1323 | enabled = !!(val & TRANS_ENABLE); |
||
1324 | WARN(enabled, |
||
1325 | "transcoder assertion failed, should be off on pipe %c but is still active\n", |
||
1326 | pipe_name(pipe)); |
||
1327 | } |
||
1328 | |||
1329 | static bool dp_pipe_enabled(struct drm_i915_private *dev_priv, |
||
1330 | enum pipe pipe, u32 port_sel, u32 val) |
||
1331 | { |
||
1332 | if ((val & DP_PORT_EN) == 0) |
||
1333 | return false; |
||
1334 | |||
1335 | if (HAS_PCH_CPT(dev_priv->dev)) { |
||
1336 | u32 trans_dp_ctl_reg = TRANS_DP_CTL(pipe); |
||
1337 | u32 trans_dp_ctl = I915_READ(trans_dp_ctl_reg); |
||
1338 | if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel) |
||
1339 | return false; |
||
1340 | } else { |
||
1341 | if ((val & DP_PIPE_MASK) != (pipe << 30)) |
||
1342 | return false; |
||
1343 | } |
||
1344 | return true; |
||
1345 | } |
||
1346 | |||
1347 | static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv, |
||
1348 | enum pipe pipe, u32 val) |
||
1349 | { |
||
1350 | if ((val & PORT_ENABLE) == 0) |
||
1351 | return false; |
||
1352 | |||
1353 | if (HAS_PCH_CPT(dev_priv->dev)) { |
||
1354 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) |
||
1355 | return false; |
||
1356 | } else { |
||
1357 | if ((val & TRANSCODER_MASK) != TRANSCODER(pipe)) |
||
1358 | return false; |
||
1359 | } |
||
1360 | return true; |
||
1361 | } |
||
1362 | |||
1363 | static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv, |
||
1364 | enum pipe pipe, u32 val) |
||
1365 | { |
||
1366 | if ((val & LVDS_PORT_EN) == 0) |
||
1367 | return false; |
||
1368 | |||
1369 | if (HAS_PCH_CPT(dev_priv->dev)) { |
||
1370 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) |
||
1371 | return false; |
||
1372 | } else { |
||
1373 | if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe)) |
||
1374 | return false; |
||
1375 | } |
||
1376 | return true; |
||
1377 | } |
||
1378 | |||
1379 | static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv, |
||
1380 | enum pipe pipe, u32 val) |
||
1381 | { |
||
1382 | if ((val & ADPA_DAC_ENABLE) == 0) |
||
1383 | return false; |
||
1384 | if (HAS_PCH_CPT(dev_priv->dev)) { |
||
1385 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) |
||
1386 | return false; |
||
1387 | } else { |
||
1388 | if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe)) |
||
1389 | return false; |
||
1390 | } |
||
1391 | return true; |
||
1392 | } |
||
1393 | |||
1394 | static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv, |
||
1395 | enum pipe pipe, int reg, u32 port_sel) |
||
1396 | { |
||
1397 | u32 val = I915_READ(reg); |
||
1398 | WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val), |
||
1399 | "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n", |
||
1400 | reg, pipe_name(pipe)); |
||
3031 | serge | 1401 | |
1402 | WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0 |
||
1403 | && (val & DP_PIPEB_SELECT), |
||
1404 | "IBX PCH dp port still using transcoder B\n"); |
||
2327 | Serge | 1405 | } |
1406 | |||
1407 | static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv, |
||
1408 | enum pipe pipe, int reg) |
||
1409 | { |
||
1410 | u32 val = I915_READ(reg); |
||
3031 | serge | 1411 | WARN(hdmi_pipe_enabled(dev_priv, pipe, val), |
1412 | "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n", |
||
2327 | Serge | 1413 | reg, pipe_name(pipe)); |
3031 | serge | 1414 | |
1415 | WARN(HAS_PCH_IBX(dev_priv->dev) && (val & PORT_ENABLE) == 0 |
||
1416 | && (val & SDVO_PIPE_B_SELECT), |
||
1417 | "IBX PCH hdmi port still using transcoder B\n"); |
||
2327 | Serge | 1418 | } |
1419 | |||
1420 | static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, |
||
1421 | enum pipe pipe) |
||
1422 | { |
||
1423 | int reg; |
||
1424 | u32 val; |
||
1425 | |||
1426 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); |
||
1427 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); |
||
1428 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); |
||
1429 | |||
1430 | reg = PCH_ADPA; |
||
1431 | val = I915_READ(reg); |
||
3031 | serge | 1432 | WARN(adpa_pipe_enabled(dev_priv, pipe, val), |
2327 | Serge | 1433 | "PCH VGA enabled on transcoder %c, should be disabled\n", |
1434 | pipe_name(pipe)); |
||
1435 | |||
1436 | reg = PCH_LVDS; |
||
1437 | val = I915_READ(reg); |
||
3031 | serge | 1438 | WARN(lvds_pipe_enabled(dev_priv, pipe, val), |
2327 | Serge | 1439 | "PCH LVDS enabled on transcoder %c, should be disabled\n", |
1440 | pipe_name(pipe)); |
||
1441 | |||
1442 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMIB); |
||
1443 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMIC); |
||
1444 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMID); |
||
1445 | } |
||
1446 | |||
1447 | /** |
||
1448 | * intel_enable_pll - enable a PLL |
||
1449 | * @dev_priv: i915 private structure |
||
1450 | * @pipe: pipe PLL to enable |
||
1451 | * |
||
1452 | * Enable @pipe's PLL so we can start pumping pixels from a plane. Check to |
||
1453 | * make sure the PLL reg is writable first though, since the panel write |
||
1454 | * protect mechanism may be enabled. |
||
1455 | * |
||
1456 | * Note! This is for pre-ILK only. |
||
3031 | serge | 1457 | * |
1458 | * Unfortunately needed by dvo_ns2501 since the dvo depends on it running. |
||
2327 | Serge | 1459 | */ |
1460 | static void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) |
||
1461 | { |
||
1462 | int reg; |
||
1463 | u32 val; |
||
1464 | |||
1465 | /* No really, not for ILK+ */ |
||
3031 | serge | 1466 | BUG_ON(!IS_VALLEYVIEW(dev_priv->dev) && dev_priv->info->gen >= 5); |
2327 | Serge | 1467 | |
1468 | /* PLL is protected by panel, make sure we can write it */ |
||
1469 | if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev)) |
||
1470 | assert_panel_unlocked(dev_priv, pipe); |
||
1471 | |||
1472 | reg = DPLL(pipe); |
||
1473 | val = I915_READ(reg); |
||
1474 | val |= DPLL_VCO_ENABLE; |
||
1475 | |||
1476 | /* We do this three times for luck */ |
||
1477 | I915_WRITE(reg, val); |
||
1478 | POSTING_READ(reg); |
||
1479 | udelay(150); /* wait for warmup */ |
||
1480 | I915_WRITE(reg, val); |
||
1481 | POSTING_READ(reg); |
||
1482 | udelay(150); /* wait for warmup */ |
||
1483 | I915_WRITE(reg, val); |
||
1484 | POSTING_READ(reg); |
||
1485 | udelay(150); /* wait for warmup */ |
||
1486 | } |
||
1487 | |||
1488 | /** |
||
1489 | * intel_disable_pll - disable a PLL |
||
1490 | * @dev_priv: i915 private structure |
||
1491 | * @pipe: pipe PLL to disable |
||
1492 | * |
||
1493 | * Disable the PLL for @pipe, making sure the pipe is off first. |
||
1494 | * |
||
1495 | * Note! This is for pre-ILK only. |
||
1496 | */ |
||
1497 | static void intel_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) |
||
1498 | { |
||
1499 | int reg; |
||
1500 | u32 val; |
||
1501 | |||
1502 | /* Don't disable pipe A or pipe A PLLs if needed */ |
||
1503 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) |
||
1504 | return; |
||
1505 | |||
1506 | /* Make sure the pipe isn't still relying on us */ |
||
1507 | assert_pipe_disabled(dev_priv, pipe); |
||
1508 | |||
1509 | reg = DPLL(pipe); |
||
1510 | val = I915_READ(reg); |
||
1511 | val &= ~DPLL_VCO_ENABLE; |
||
1512 | I915_WRITE(reg, val); |
||
1513 | POSTING_READ(reg); |
||
1514 | } |
||
1515 | |||
3031 | serge | 1516 | /* SBI access */ |
1517 | static void |
||
1518 | intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value) |
||
1519 | { |
||
1520 | unsigned long flags; |
||
1521 | |||
1522 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); |
||
1523 | if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_BUSY) == 0, |
||
1524 | 100)) { |
||
1525 | DRM_ERROR("timeout waiting for SBI to become ready\n"); |
||
1526 | goto out_unlock; |
||
1527 | } |
||
1528 | |||
1529 | I915_WRITE(SBI_ADDR, |
||
1530 | (reg << 16)); |
||
1531 | I915_WRITE(SBI_DATA, |
||
1532 | value); |
||
1533 | I915_WRITE(SBI_CTL_STAT, |
||
1534 | SBI_BUSY | |
||
1535 | SBI_CTL_OP_CRWR); |
||
1536 | |||
1537 | if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0, |
||
1538 | 100)) { |
||
1539 | DRM_ERROR("timeout waiting for SBI to complete write transaction\n"); |
||
1540 | goto out_unlock; |
||
1541 | } |
||
1542 | |||
1543 | out_unlock: |
||
1544 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); |
||
1545 | } |
||
1546 | |||
1547 | static u32 |
||
1548 | intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg) |
||
1549 | { |
||
1550 | unsigned long flags; |
||
1551 | u32 value = 0; |
||
1552 | |||
1553 | spin_lock_irqsave(&dev_priv->dpio_lock, flags); |
||
1554 | if (wait_for((I915_READ(SBI_CTL_STAT) & SBI_BUSY) == 0, |
||
1555 | 100)) { |
||
1556 | DRM_ERROR("timeout waiting for SBI to become ready\n"); |
||
1557 | goto out_unlock; |
||
1558 | } |
||
1559 | |||
1560 | I915_WRITE(SBI_ADDR, |
||
1561 | (reg << 16)); |
||
1562 | I915_WRITE(SBI_CTL_STAT, |
||
1563 | SBI_BUSY | |
||
1564 | SBI_CTL_OP_CRRD); |
||
1565 | |||
1566 | if (wait_for((I915_READ(SBI_CTL_STAT) & (SBI_BUSY | SBI_RESPONSE_FAIL)) == 0, |
||
1567 | 100)) { |
||
1568 | DRM_ERROR("timeout waiting for SBI to complete read transaction\n"); |
||
1569 | goto out_unlock; |
||
1570 | } |
||
1571 | |||
1572 | value = I915_READ(SBI_DATA); |
||
1573 | |||
1574 | out_unlock: |
||
1575 | spin_unlock_irqrestore(&dev_priv->dpio_lock, flags); |
||
1576 | return value; |
||
1577 | } |
||
1578 | |||
2327 | Serge | 1579 | /** |
1580 | * intel_enable_pch_pll - enable PCH PLL |
||
1581 | * @dev_priv: i915 private structure |
||
1582 | * @pipe: pipe PLL to enable |
||
1583 | * |
||
1584 | * The PCH PLL needs to be enabled before the PCH transcoder, since it |
||
1585 | * drives the transcoder clock. |
||
1586 | */ |
||
3031 | serge | 1587 | static void intel_enable_pch_pll(struct intel_crtc *intel_crtc) |
2327 | Serge | 1588 | { |
3031 | serge | 1589 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
1590 | struct intel_pch_pll *pll; |
||
2327 | Serge | 1591 | int reg; |
1592 | u32 val; |
||
1593 | |||
3031 | serge | 1594 | /* PCH PLLs only available on ILK, SNB and IVB */ |
1595 | BUG_ON(dev_priv->info->gen < 5); |
||
1596 | pll = intel_crtc->pch_pll; |
||
1597 | if (pll == NULL) |
||
2342 | Serge | 1598 | return; |
1599 | |||
3031 | serge | 1600 | if (WARN_ON(pll->refcount == 0)) |
1601 | return; |
||
2327 | Serge | 1602 | |
3031 | serge | 1603 | DRM_DEBUG_KMS("enable PCH PLL %x (active %d, on? %d)for crtc %d\n", |
1604 | pll->pll_reg, pll->active, pll->on, |
||
1605 | intel_crtc->base.base.id); |
||
1606 | |||
2327 | Serge | 1607 | /* PCH refclock must be enabled first */ |
1608 | assert_pch_refclk_enabled(dev_priv); |
||
1609 | |||
3031 | serge | 1610 | if (pll->active++ && pll->on) { |
1611 | assert_pch_pll_enabled(dev_priv, pll, NULL); |
||
1612 | return; |
||
1613 | } |
||
1614 | |||
1615 | DRM_DEBUG_KMS("enabling PCH PLL %x\n", pll->pll_reg); |
||
1616 | |||
1617 | reg = pll->pll_reg; |
||
2327 | Serge | 1618 | val = I915_READ(reg); |
1619 | val |= DPLL_VCO_ENABLE; |
||
1620 | I915_WRITE(reg, val); |
||
1621 | POSTING_READ(reg); |
||
1622 | udelay(200); |
||
3031 | serge | 1623 | |
1624 | pll->on = true; |
||
2327 | Serge | 1625 | } |
1626 | |||
3031 | serge | 1627 | static void intel_disable_pch_pll(struct intel_crtc *intel_crtc) |
2327 | Serge | 1628 | { |
3031 | serge | 1629 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
1630 | struct intel_pch_pll *pll = intel_crtc->pch_pll; |
||
2327 | Serge | 1631 | int reg; |
3031 | serge | 1632 | u32 val; |
2327 | Serge | 1633 | |
1634 | /* PCH only available on ILK+ */ |
||
1635 | BUG_ON(dev_priv->info->gen < 5); |
||
3031 | serge | 1636 | if (pll == NULL) |
1637 | return; |
||
2327 | Serge | 1638 | |
3031 | serge | 1639 | if (WARN_ON(pll->refcount == 0)) |
1640 | return; |
||
2327 | Serge | 1641 | |
3031 | serge | 1642 | DRM_DEBUG_KMS("disable PCH PLL %x (active %d, on? %d) for crtc %d\n", |
1643 | pll->pll_reg, pll->active, pll->on, |
||
1644 | intel_crtc->base.base.id); |
||
2342 | Serge | 1645 | |
3031 | serge | 1646 | if (WARN_ON(pll->active == 0)) { |
1647 | assert_pch_pll_disabled(dev_priv, pll, NULL); |
||
1648 | return; |
||
1649 | } |
||
2342 | Serge | 1650 | |
3031 | serge | 1651 | if (--pll->active) { |
1652 | assert_pch_pll_enabled(dev_priv, pll, NULL); |
||
2342 | Serge | 1653 | return; |
3031 | serge | 1654 | } |
2342 | Serge | 1655 | |
3031 | serge | 1656 | DRM_DEBUG_KMS("disabling PCH PLL %x\n", pll->pll_reg); |
1657 | |||
1658 | /* Make sure transcoder isn't still depending on us */ |
||
1659 | assert_transcoder_disabled(dev_priv, intel_crtc->pipe); |
||
1660 | |||
1661 | reg = pll->pll_reg; |
||
2327 | Serge | 1662 | val = I915_READ(reg); |
1663 | val &= ~DPLL_VCO_ENABLE; |
||
1664 | I915_WRITE(reg, val); |
||
1665 | POSTING_READ(reg); |
||
1666 | udelay(200); |
||
3031 | serge | 1667 | |
1668 | pll->on = false; |
||
2327 | Serge | 1669 | } |
1670 | |||
1671 | static void intel_enable_transcoder(struct drm_i915_private *dev_priv, |
||
1672 | enum pipe pipe) |
||
1673 | { |
||
1674 | int reg; |
||
3031 | serge | 1675 | u32 val, pipeconf_val; |
1676 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
||
2327 | Serge | 1677 | |
1678 | /* PCH only available on ILK+ */ |
||
1679 | BUG_ON(dev_priv->info->gen < 5); |
||
1680 | |||
1681 | /* Make sure PCH DPLL is enabled */ |
||
3031 | serge | 1682 | assert_pch_pll_enabled(dev_priv, |
1683 | to_intel_crtc(crtc)->pch_pll, |
||
1684 | to_intel_crtc(crtc)); |
||
2327 | Serge | 1685 | |
1686 | /* FDI must be feeding us bits for PCH ports */ |
||
1687 | assert_fdi_tx_enabled(dev_priv, pipe); |
||
1688 | assert_fdi_rx_enabled(dev_priv, pipe); |
||
1689 | |||
3031 | serge | 1690 | if (IS_HASWELL(dev_priv->dev) && pipe > 0) { |
1691 | DRM_ERROR("Attempting to enable transcoder on Haswell with pipe > 0\n"); |
||
1692 | return; |
||
1693 | } |
||
2327 | Serge | 1694 | reg = TRANSCONF(pipe); |
1695 | val = I915_READ(reg); |
||
3031 | serge | 1696 | pipeconf_val = I915_READ(PIPECONF(pipe)); |
2327 | Serge | 1697 | |
1698 | if (HAS_PCH_IBX(dev_priv->dev)) { |
||
1699 | /* |
||
1700 | * make the BPC in transcoder be consistent with |
||
1701 | * that in pipeconf reg. |
||
1702 | */ |
||
1703 | val &= ~PIPE_BPC_MASK; |
||
3031 | serge | 1704 | val |= pipeconf_val & PIPE_BPC_MASK; |
2327 | Serge | 1705 | } |
3031 | serge | 1706 | |
1707 | val &= ~TRANS_INTERLACE_MASK; |
||
1708 | if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK) |
||
1709 | if (HAS_PCH_IBX(dev_priv->dev) && |
||
1710 | intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) |
||
1711 | val |= TRANS_LEGACY_INTERLACED_ILK; |
||
1712 | else |
||
1713 | val |= TRANS_INTERLACED; |
||
1714 | else |
||
1715 | val |= TRANS_PROGRESSIVE; |
||
1716 | |||
2327 | Serge | 1717 | I915_WRITE(reg, val | TRANS_ENABLE); |
1718 | if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100)) |
||
1719 | DRM_ERROR("failed to enable transcoder %d\n", pipe); |
||
1720 | } |
||
1721 | |||
1722 | static void intel_disable_transcoder(struct drm_i915_private *dev_priv, |
||
1723 | enum pipe pipe) |
||
1724 | { |
||
1725 | int reg; |
||
1726 | u32 val; |
||
1727 | |||
1728 | /* FDI relies on the transcoder */ |
||
1729 | assert_fdi_tx_disabled(dev_priv, pipe); |
||
1730 | assert_fdi_rx_disabled(dev_priv, pipe); |
||
1731 | |||
1732 | /* Ports must be off as well */ |
||
1733 | assert_pch_ports_disabled(dev_priv, pipe); |
||
1734 | |||
1735 | reg = TRANSCONF(pipe); |
||
1736 | val = I915_READ(reg); |
||
1737 | val &= ~TRANS_ENABLE; |
||
1738 | I915_WRITE(reg, val); |
||
1739 | /* wait for PCH transcoder off, transcoder state */ |
||
1740 | if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50)) |
||
2342 | Serge | 1741 | DRM_ERROR("failed to disable transcoder %d\n", pipe); |
2327 | Serge | 1742 | } |
1743 | |||
1744 | /** |
||
1745 | * intel_enable_pipe - enable a pipe, asserting requirements |
||
1746 | * @dev_priv: i915 private structure |
||
1747 | * @pipe: pipe to enable |
||
1748 | * @pch_port: on ILK+, is this pipe driving a PCH port or not |
||
1749 | * |
||
1750 | * Enable @pipe, making sure that various hardware specific requirements |
||
1751 | * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc. |
||
1752 | * |
||
1753 | * @pipe should be %PIPE_A or %PIPE_B. |
||
1754 | * |
||
1755 | * Will wait until the pipe is actually running (i.e. first vblank) before |
||
1756 | * returning. |
||
1757 | */ |
||
1758 | static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, |
||
1759 | bool pch_port) |
||
1760 | { |
||
1761 | int reg; |
||
1762 | u32 val; |
||
1763 | |||
1764 | /* |
||
1765 | * A pipe without a PLL won't actually be able to drive bits from |
||
1766 | * a plane. On ILK+ the pipe PLLs are integrated, so we don't |
||
1767 | * need the check. |
||
1768 | */ |
||
1769 | if (!HAS_PCH_SPLIT(dev_priv->dev)) |
||
1770 | assert_pll_enabled(dev_priv, pipe); |
||
1771 | else { |
||
1772 | if (pch_port) { |
||
1773 | /* if driving the PCH, we need FDI enabled */ |
||
1774 | assert_fdi_rx_pll_enabled(dev_priv, pipe); |
||
1775 | assert_fdi_tx_pll_enabled(dev_priv, pipe); |
||
1776 | } |
||
1777 | /* FIXME: assert CPU port conditions for SNB+ */ |
||
1778 | } |
||
1779 | |||
1780 | reg = PIPECONF(pipe); |
||
1781 | val = I915_READ(reg); |
||
1782 | if (val & PIPECONF_ENABLE) |
||
1783 | return; |
||
1784 | |||
1785 | I915_WRITE(reg, val | PIPECONF_ENABLE); |
||
1786 | intel_wait_for_vblank(dev_priv->dev, pipe); |
||
1787 | } |
||
1788 | |||
1789 | /** |
||
1790 | * intel_disable_pipe - disable a pipe, asserting requirements |
||
1791 | * @dev_priv: i915 private structure |
||
1792 | * @pipe: pipe to disable |
||
1793 | * |
||
1794 | * Disable @pipe, making sure that various hardware specific requirements |
||
1795 | * are met, if applicable, e.g. plane disabled, panel fitter off, etc. |
||
1796 | * |
||
1797 | * @pipe should be %PIPE_A or %PIPE_B. |
||
1798 | * |
||
1799 | * Will wait until the pipe has shut down before returning. |
||
1800 | */ |
||
1801 | static void intel_disable_pipe(struct drm_i915_private *dev_priv, |
||
1802 | enum pipe pipe) |
||
1803 | { |
||
1804 | int reg; |
||
1805 | u32 val; |
||
1806 | |||
3031 | serge | 1807 | /* |
2327 | Serge | 1808 | * Make sure planes won't keep trying to pump pixels to us, |
1809 | * or we might hang the display. |
||
1810 | */ |
||
1811 | assert_planes_disabled(dev_priv, pipe); |
||
1812 | |||
1813 | /* Don't disable pipe A or pipe A PLLs if needed */ |
||
1814 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) |
||
1815 | return; |
||
1816 | |||
1817 | reg = PIPECONF(pipe); |
||
1818 | val = I915_READ(reg); |
||
1819 | if ((val & PIPECONF_ENABLE) == 0) |
||
1820 | return; |
||
1821 | |||
1822 | I915_WRITE(reg, val & ~PIPECONF_ENABLE); |
||
1823 | intel_wait_for_pipe_off(dev_priv->dev, pipe); |
||
1824 | } |
||
1825 | |||
1826 | /* |
||
1827 | * Plane regs are double buffered, going from enabled->disabled needs a |
||
1828 | * trigger in order to latch. The display address reg provides this. |
||
1829 | */ |
||
3031 | serge | 1830 | void intel_flush_display_plane(struct drm_i915_private *dev_priv, |
2327 | Serge | 1831 | enum plane plane) |
1832 | { |
||
1833 | I915_WRITE(DSPADDR(plane), I915_READ(DSPADDR(plane))); |
||
1834 | I915_WRITE(DSPSURF(plane), I915_READ(DSPSURF(plane))); |
||
1835 | } |
||
1836 | |||
1837 | /** |
||
1838 | * intel_enable_plane - enable a display plane on a given pipe |
||
1839 | * @dev_priv: i915 private structure |
||
1840 | * @plane: plane to enable |
||
1841 | * @pipe: pipe being fed |
||
1842 | * |
||
1843 | * Enable @plane on @pipe, making sure that @pipe is running first. |
||
1844 | */ |
||
1845 | static void intel_enable_plane(struct drm_i915_private *dev_priv, |
||
1846 | enum plane plane, enum pipe pipe) |
||
1847 | { |
||
1848 | int reg; |
||
1849 | u32 val; |
||
1850 | |||
1851 | /* If the pipe isn't enabled, we can't pump pixels and may hang */ |
||
1852 | assert_pipe_enabled(dev_priv, pipe); |
||
1853 | |||
1854 | reg = DSPCNTR(plane); |
||
1855 | val = I915_READ(reg); |
||
1856 | if (val & DISPLAY_PLANE_ENABLE) |
||
1857 | return; |
||
1858 | |||
1859 | I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE); |
||
1860 | intel_flush_display_plane(dev_priv, plane); |
||
1861 | intel_wait_for_vblank(dev_priv->dev, pipe); |
||
1862 | } |
||
1863 | |||
1864 | /** |
||
1865 | * intel_disable_plane - disable a display plane |
||
1866 | * @dev_priv: i915 private structure |
||
1867 | * @plane: plane to disable |
||
1868 | * @pipe: pipe consuming the data |
||
1869 | * |
||
1870 | * Disable @plane; should be an independent operation. |
||
1871 | */ |
||
1872 | static void intel_disable_plane(struct drm_i915_private *dev_priv, |
||
1873 | enum plane plane, enum pipe pipe) |
||
1874 | { |
||
1875 | int reg; |
||
1876 | u32 val; |
||
1877 | |||
1878 | reg = DSPCNTR(plane); |
||
1879 | val = I915_READ(reg); |
||
1880 | if ((val & DISPLAY_PLANE_ENABLE) == 0) |
||
1881 | return; |
||
1882 | |||
1883 | I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE); |
||
1884 | intel_flush_display_plane(dev_priv, plane); |
||
3031 | serge | 1885 | intel_wait_for_vblank(dev_priv->dev, pipe); |
2327 | Serge | 1886 | } |
1887 | |||
2335 | Serge | 1888 | int |
1889 | intel_pin_and_fence_fb_obj(struct drm_device *dev, |
||
1890 | struct drm_i915_gem_object *obj, |
||
1891 | struct intel_ring_buffer *pipelined) |
||
1892 | { |
||
1893 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
1894 | u32 alignment; |
||
1895 | int ret; |
||
2327 | Serge | 1896 | |
2335 | Serge | 1897 | switch (obj->tiling_mode) { |
1898 | case I915_TILING_NONE: |
||
1899 | if (IS_BROADWATER(dev) || IS_CRESTLINE(dev)) |
||
1900 | alignment = 128 * 1024; |
||
1901 | else if (INTEL_INFO(dev)->gen >= 4) |
||
1902 | alignment = 4 * 1024; |
||
1903 | else |
||
1904 | alignment = 64 * 1024; |
||
1905 | break; |
||
1906 | case I915_TILING_X: |
||
1907 | /* pin() will align the object as required by fence */ |
||
1908 | alignment = 0; |
||
1909 | break; |
||
1910 | case I915_TILING_Y: |
||
1911 | /* FIXME: Is this true? */ |
||
1912 | DRM_ERROR("Y tiled not allowed for scan out buffers\n"); |
||
1913 | return -EINVAL; |
||
1914 | default: |
||
1915 | BUG(); |
||
1916 | } |
||
2327 | Serge | 1917 | |
2335 | Serge | 1918 | dev_priv->mm.interruptible = false; |
1919 | ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined); |
||
1920 | if (ret) |
||
1921 | goto err_interruptible; |
||
2327 | Serge | 1922 | |
2335 | Serge | 1923 | /* Install a fence for tiled scan-out. Pre-i965 always needs a |
1924 | * fence, whereas 965+ only requires a fence if using |
||
1925 | * framebuffer compression. For simplicity, we always install |
||
1926 | * a fence as the cost is not that onerous. |
||
1927 | */ |
||
1928 | // if (obj->tiling_mode != I915_TILING_NONE) { |
||
1929 | // ret = i915_gem_object_get_fence(obj, pipelined); |
||
1930 | // if (ret) |
||
1931 | // goto err_unpin; |
||
1932 | // } |
||
2327 | Serge | 1933 | |
2335 | Serge | 1934 | dev_priv->mm.interruptible = true; |
1935 | return 0; |
||
2327 | Serge | 1936 | |
2335 | Serge | 1937 | err_unpin: |
2344 | Serge | 1938 | i915_gem_object_unpin(obj); |
2335 | Serge | 1939 | err_interruptible: |
1940 | dev_priv->mm.interruptible = true; |
||
1941 | return ret; |
||
1942 | } |
||
2327 | Serge | 1943 | |
3031 | serge | 1944 | void intel_unpin_fb_obj(struct drm_i915_gem_object *obj) |
1945 | { |
||
1946 | // i915_gem_object_unpin_fence(obj); |
||
1947 | // i915_gem_object_unpin(obj); |
||
1948 | } |
||
1949 | |||
1950 | /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel |
||
1951 | * is assumed to be a power-of-two. */ |
||
1952 | static unsigned long gen4_compute_dspaddr_offset_xtiled(int *x, int *y, |
||
1953 | unsigned int bpp, |
||
1954 | unsigned int pitch) |
||
1955 | { |
||
1956 | int tile_rows, tiles; |
||
1957 | |||
1958 | tile_rows = *y / 8; |
||
1959 | *y %= 8; |
||
1960 | tiles = *x / (512/bpp); |
||
1961 | *x %= 512/bpp; |
||
1962 | |||
1963 | return tile_rows * pitch * 8 + tiles * 4096; |
||
1964 | } |
||
1965 | |||
2327 | Serge | 1966 | static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb, |
1967 | int x, int y) |
||
1968 | { |
||
1969 | struct drm_device *dev = crtc->dev; |
||
1970 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
1971 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
1972 | struct intel_framebuffer *intel_fb; |
||
1973 | struct drm_i915_gem_object *obj; |
||
1974 | int plane = intel_crtc->plane; |
||
3031 | serge | 1975 | unsigned long linear_offset; |
2327 | Serge | 1976 | u32 dspcntr; |
1977 | u32 reg; |
||
1978 | |||
1979 | switch (plane) { |
||
1980 | case 0: |
||
1981 | case 1: |
||
1982 | break; |
||
1983 | default: |
||
1984 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); |
||
1985 | return -EINVAL; |
||
1986 | } |
||
1987 | |||
1988 | intel_fb = to_intel_framebuffer(fb); |
||
1989 | obj = intel_fb->obj; |
||
1990 | |||
1991 | reg = DSPCNTR(plane); |
||
1992 | dspcntr = I915_READ(reg); |
||
1993 | /* Mask out pixel format bits in case we change it */ |
||
1994 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; |
||
1995 | switch (fb->bits_per_pixel) { |
||
1996 | case 8: |
||
1997 | dspcntr |= DISPPLANE_8BPP; |
||
1998 | break; |
||
1999 | case 16: |
||
2000 | if (fb->depth == 15) |
||
2001 | dspcntr |= DISPPLANE_15_16BPP; |
||
2002 | else |
||
2003 | dspcntr |= DISPPLANE_16BPP; |
||
2004 | break; |
||
2005 | case 24: |
||
2006 | case 32: |
||
2007 | dspcntr |= DISPPLANE_32BPP_NO_ALPHA; |
||
2008 | break; |
||
2009 | default: |
||
2010 | DRM_ERROR("Unknown color depth %d\n", fb->bits_per_pixel); |
||
2011 | return -EINVAL; |
||
2012 | } |
||
2013 | if (INTEL_INFO(dev)->gen >= 4) { |
||
2014 | if (obj->tiling_mode != I915_TILING_NONE) |
||
2015 | dspcntr |= DISPPLANE_TILED; |
||
2016 | else |
||
2017 | dspcntr &= ~DISPPLANE_TILED; |
||
2018 | } |
||
2019 | |||
2020 | I915_WRITE(reg, dspcntr); |
||
2021 | |||
3031 | serge | 2022 | linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); |
2327 | Serge | 2023 | |
3031 | serge | 2024 | if (INTEL_INFO(dev)->gen >= 4) { |
2025 | intel_crtc->dspaddr_offset = |
||
2026 | gen4_compute_dspaddr_offset_xtiled(&x, &y, |
||
2027 | fb->bits_per_pixel / 8, |
||
2028 | fb->pitches[0]); |
||
2029 | linear_offset -= intel_crtc->dspaddr_offset; |
||
2030 | } else { |
||
2031 | intel_crtc->dspaddr_offset = linear_offset; |
||
2032 | } |
||
2033 | |||
2034 | DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n", |
||
2035 | obj->gtt_offset, linear_offset, x, y, fb->pitches[0]); |
||
2342 | Serge | 2036 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
2327 | Serge | 2037 | if (INTEL_INFO(dev)->gen >= 4) { |
3031 | serge | 2038 | I915_MODIFY_DISPBASE(DSPSURF(plane), |
2039 | obj->gtt_offset + intel_crtc->dspaddr_offset); |
||
2327 | Serge | 2040 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
3031 | serge | 2041 | I915_WRITE(DSPLINOFF(plane), linear_offset); |
2327 | Serge | 2042 | } else |
3031 | serge | 2043 | I915_WRITE(DSPADDR(plane), obj->gtt_offset + linear_offset); |
2327 | Serge | 2044 | POSTING_READ(reg); |
2045 | |||
2046 | return 0; |
||
2047 | } |
||
2048 | |||
2049 | static int ironlake_update_plane(struct drm_crtc *crtc, |
||
2050 | struct drm_framebuffer *fb, int x, int y) |
||
2051 | { |
||
2052 | struct drm_device *dev = crtc->dev; |
||
2053 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2054 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2055 | struct intel_framebuffer *intel_fb; |
||
2056 | struct drm_i915_gem_object *obj; |
||
2057 | int plane = intel_crtc->plane; |
||
3031 | serge | 2058 | unsigned long linear_offset; |
2327 | Serge | 2059 | u32 dspcntr; |
2060 | u32 reg; |
||
2061 | |||
2062 | switch (plane) { |
||
2063 | case 0: |
||
2064 | case 1: |
||
2342 | Serge | 2065 | case 2: |
2327 | Serge | 2066 | break; |
2067 | default: |
||
2068 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); |
||
2069 | return -EINVAL; |
||
2070 | } |
||
2071 | |||
2072 | intel_fb = to_intel_framebuffer(fb); |
||
2073 | obj = intel_fb->obj; |
||
2074 | |||
2075 | reg = DSPCNTR(plane); |
||
2076 | dspcntr = I915_READ(reg); |
||
2077 | /* Mask out pixel format bits in case we change it */ |
||
2078 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; |
||
2079 | switch (fb->bits_per_pixel) { |
||
2080 | case 8: |
||
2081 | dspcntr |= DISPPLANE_8BPP; |
||
2082 | break; |
||
2083 | case 16: |
||
2084 | if (fb->depth != 16) |
||
2085 | return -EINVAL; |
||
2086 | |||
2087 | dspcntr |= DISPPLANE_16BPP; |
||
2088 | break; |
||
2089 | case 24: |
||
2090 | case 32: |
||
2091 | if (fb->depth == 24) |
||
2092 | dspcntr |= DISPPLANE_32BPP_NO_ALPHA; |
||
2093 | else if (fb->depth == 30) |
||
2094 | dspcntr |= DISPPLANE_32BPP_30BIT_NO_ALPHA; |
||
2095 | else |
||
2096 | return -EINVAL; |
||
2097 | break; |
||
2098 | default: |
||
2099 | DRM_ERROR("Unknown color depth %d\n", fb->bits_per_pixel); |
||
2100 | return -EINVAL; |
||
2101 | } |
||
2102 | |||
2103 | // if (obj->tiling_mode != I915_TILING_NONE) |
||
2104 | // dspcntr |= DISPPLANE_TILED; |
||
2105 | // else |
||
2106 | dspcntr &= ~DISPPLANE_TILED; |
||
2107 | |||
2108 | /* must disable */ |
||
2109 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; |
||
2110 | |||
2111 | I915_WRITE(reg, dspcntr); |
||
2112 | |||
3031 | serge | 2113 | linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); |
2114 | intel_crtc->dspaddr_offset = |
||
2115 | gen4_compute_dspaddr_offset_xtiled(&x, &y, |
||
2116 | fb->bits_per_pixel / 8, |
||
2117 | fb->pitches[0]); |
||
2118 | linear_offset -= intel_crtc->dspaddr_offset; |
||
2327 | Serge | 2119 | |
3031 | serge | 2120 | DRM_DEBUG_KMS("Writing base %08X %08lX %d %d %d\n", |
2121 | obj->gtt_offset, linear_offset, x, y, fb->pitches[0]); |
||
2342 | Serge | 2122 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
3031 | serge | 2123 | I915_MODIFY_DISPBASE(DSPSURF(plane), |
2124 | obj->gtt_offset + intel_crtc->dspaddr_offset); |
||
2330 | Serge | 2125 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
3031 | serge | 2126 | I915_WRITE(DSPLINOFF(plane), linear_offset); |
2330 | Serge | 2127 | POSTING_READ(reg); |
2327 | Serge | 2128 | |
2129 | return 0; |
||
2130 | } |
||
2131 | |||
2132 | /* Assume fb object is pinned & idle & fenced and just update base pointers */ |
||
2133 | static int |
||
2134 | intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb, |
||
2135 | int x, int y, enum mode_set_atomic state) |
||
2136 | { |
||
2137 | struct drm_device *dev = crtc->dev; |
||
2138 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3031 | serge | 2139 | |
2140 | if (dev_priv->display.disable_fbc) |
||
2141 | dev_priv->display.disable_fbc(dev); |
||
2142 | intel_increase_pllclock(crtc); |
||
2143 | |||
2144 | return dev_priv->display.update_plane(crtc, fb, x, y); |
||
2145 | } |
||
2146 | |||
2147 | #if 0 |
||
2148 | static int |
||
2149 | intel_finish_fb(struct drm_framebuffer *old_fb) |
||
2150 | { |
||
2151 | struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj; |
||
2152 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
||
2153 | bool was_interruptible = dev_priv->mm.interruptible; |
||
2327 | Serge | 2154 | int ret; |
2155 | |||
3031 | serge | 2156 | wait_event(dev_priv->pending_flip_queue, |
2157 | atomic_read(&dev_priv->mm.wedged) || |
||
2158 | atomic_read(&obj->pending_flip) == 0); |
||
2327 | Serge | 2159 | |
3031 | serge | 2160 | /* Big Hammer, we also need to ensure that any pending |
2161 | * MI_WAIT_FOR_EVENT inside a user batch buffer on the |
||
2162 | * current scanout is retired before unpinning the old |
||
2163 | * framebuffer. |
||
2164 | * |
||
2165 | * This should only fail upon a hung GPU, in which case we |
||
2166 | * can safely continue. |
||
2167 | */ |
||
2168 | dev_priv->mm.interruptible = false; |
||
2169 | ret = i915_gem_object_finish_gpu(obj); |
||
2170 | dev_priv->mm.interruptible = was_interruptible; |
||
2327 | Serge | 2171 | |
3031 | serge | 2172 | return ret; |
2327 | Serge | 2173 | } |
3031 | serge | 2174 | #endif |
2327 | Serge | 2175 | |
2176 | static int |
||
2177 | intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, |
||
3031 | serge | 2178 | struct drm_framebuffer *fb) |
2327 | Serge | 2179 | { |
2180 | struct drm_device *dev = crtc->dev; |
||
3031 | serge | 2181 | struct drm_i915_private *dev_priv = dev->dev_private; |
2327 | Serge | 2182 | struct drm_i915_master_private *master_priv; |
2183 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
3031 | serge | 2184 | struct drm_framebuffer *old_fb; |
2342 | Serge | 2185 | int ret; |
2327 | Serge | 2186 | |
2187 | /* no fb bound */ |
||
3031 | serge | 2188 | if (!fb) { |
2327 | Serge | 2189 | DRM_ERROR("No FB bound\n"); |
2190 | return 0; |
||
2191 | } |
||
2192 | |||
3031 | serge | 2193 | if(intel_crtc->plane > dev_priv->num_pipe) { |
2194 | DRM_ERROR("no plane for crtc: plane %d, num_pipes %d\n", |
||
2195 | intel_crtc->plane, |
||
2196 | dev_priv->num_pipe); |
||
2327 | Serge | 2197 | return -EINVAL; |
2198 | } |
||
2199 | |||
2200 | mutex_lock(&dev->struct_mutex); |
||
3031 | serge | 2201 | // ret = intel_pin_and_fence_fb_obj(dev, |
2202 | // to_intel_framebuffer(fb)->obj, |
||
2203 | // NULL); |
||
2204 | // if (ret != 0) { |
||
2205 | // mutex_unlock(&dev->struct_mutex); |
||
2206 | // DRM_ERROR("pin & fence failed\n"); |
||
2207 | // return ret; |
||
2208 | // } |
||
2327 | Serge | 2209 | |
3031 | serge | 2210 | // if (crtc->fb) |
2211 | // intel_finish_fb(crtc->fb); |
||
2212 | |||
2213 | ret = dev_priv->display.update_plane(crtc, fb, x, y); |
||
2327 | Serge | 2214 | if (ret) { |
3031 | serge | 2215 | intel_unpin_fb_obj(to_intel_framebuffer(fb)->obj); |
2327 | Serge | 2216 | mutex_unlock(&dev->struct_mutex); |
2217 | DRM_ERROR("failed to update base address\n"); |
||
2218 | return ret; |
||
2219 | } |
||
2220 | |||
3031 | serge | 2221 | old_fb = crtc->fb; |
2222 | crtc->fb = fb; |
||
2223 | crtc->x = x; |
||
2224 | crtc->y = y; |
||
2225 | |||
2226 | if (old_fb) { |
||
2227 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
||
2228 | intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj); |
||
2229 | } |
||
2230 | |||
2231 | intel_update_fbc(dev); |
||
2336 | Serge | 2232 | mutex_unlock(&dev->struct_mutex); |
2327 | Serge | 2233 | |
2336 | Serge | 2234 | return 0; |
2327 | Serge | 2235 | } |
2236 | |||
2237 | static void ironlake_set_pll_edp(struct drm_crtc *crtc, int clock) |
||
2238 | { |
||
2239 | struct drm_device *dev = crtc->dev; |
||
2240 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2241 | u32 dpa_ctl; |
||
2242 | |||
2243 | DRM_DEBUG_KMS("eDP PLL enable for clock %d\n", clock); |
||
2244 | dpa_ctl = I915_READ(DP_A); |
||
2245 | dpa_ctl &= ~DP_PLL_FREQ_MASK; |
||
2246 | |||
2247 | if (clock < 200000) { |
||
2248 | u32 temp; |
||
2249 | dpa_ctl |= DP_PLL_FREQ_160MHZ; |
||
2250 | /* workaround for 160Mhz: |
||
2251 | 1) program 0x4600c bits 15:0 = 0x8124 |
||
2252 | 2) program 0x46010 bit 0 = 1 |
||
2253 | 3) program 0x46034 bit 24 = 1 |
||
2254 | 4) program 0x64000 bit 14 = 1 |
||
2255 | */ |
||
2256 | temp = I915_READ(0x4600c); |
||
2257 | temp &= 0xffff0000; |
||
2258 | I915_WRITE(0x4600c, temp | 0x8124); |
||
2259 | |||
2260 | temp = I915_READ(0x46010); |
||
2261 | I915_WRITE(0x46010, temp | 1); |
||
2262 | |||
2263 | temp = I915_READ(0x46034); |
||
2264 | I915_WRITE(0x46034, temp | (1 << 24)); |
||
2265 | } else { |
||
2266 | dpa_ctl |= DP_PLL_FREQ_270MHZ; |
||
2267 | } |
||
2268 | I915_WRITE(DP_A, dpa_ctl); |
||
2269 | |||
2270 | POSTING_READ(DP_A); |
||
2271 | udelay(500); |
||
2272 | } |
||
2273 | |||
2274 | static void intel_fdi_normal_train(struct drm_crtc *crtc) |
||
2275 | { |
||
2276 | struct drm_device *dev = crtc->dev; |
||
2277 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2278 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2279 | int pipe = intel_crtc->pipe; |
||
2280 | u32 reg, temp; |
||
2281 | |||
2282 | /* enable normal train */ |
||
2283 | reg = FDI_TX_CTL(pipe); |
||
2284 | temp = I915_READ(reg); |
||
2285 | if (IS_IVYBRIDGE(dev)) { |
||
2286 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
||
2287 | temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE; |
||
2288 | } else { |
||
2289 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2290 | temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE; |
||
2291 | } |
||
2292 | I915_WRITE(reg, temp); |
||
2293 | |||
2294 | reg = FDI_RX_CTL(pipe); |
||
2295 | temp = I915_READ(reg); |
||
2296 | if (HAS_PCH_CPT(dev)) { |
||
2297 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; |
||
2298 | temp |= FDI_LINK_TRAIN_NORMAL_CPT; |
||
2299 | } else { |
||
2300 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2301 | temp |= FDI_LINK_TRAIN_NONE; |
||
2302 | } |
||
2303 | I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); |
||
2304 | |||
2305 | /* wait one idle pattern time */ |
||
2306 | POSTING_READ(reg); |
||
2307 | udelay(1000); |
||
2308 | |||
2309 | /* IVB wants error correction enabled */ |
||
2310 | if (IS_IVYBRIDGE(dev)) |
||
2311 | I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE | |
||
2312 | FDI_FE_ERRC_ENABLE); |
||
2313 | } |
||
2314 | |||
2315 | static void cpt_phase_pointer_enable(struct drm_device *dev, int pipe) |
||
2316 | { |
||
2317 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2318 | u32 flags = I915_READ(SOUTH_CHICKEN1); |
||
2319 | |||
2320 | flags |= FDI_PHASE_SYNC_OVR(pipe); |
||
2321 | I915_WRITE(SOUTH_CHICKEN1, flags); /* once to unlock... */ |
||
2322 | flags |= FDI_PHASE_SYNC_EN(pipe); |
||
2323 | I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to enable */ |
||
2324 | POSTING_READ(SOUTH_CHICKEN1); |
||
2325 | } |
||
2326 | |||
2327 | /* The FDI link training functions for ILK/Ibexpeak. */ |
||
2328 | static void ironlake_fdi_link_train(struct drm_crtc *crtc) |
||
2329 | { |
||
2330 | struct drm_device *dev = crtc->dev; |
||
2331 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2332 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2333 | int pipe = intel_crtc->pipe; |
||
2334 | int plane = intel_crtc->plane; |
||
2335 | u32 reg, temp, tries; |
||
2336 | |||
2337 | /* FDI needs bits from pipe & plane first */ |
||
2338 | assert_pipe_enabled(dev_priv, pipe); |
||
2339 | assert_plane_enabled(dev_priv, plane); |
||
2340 | |||
2341 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
||
2342 | for train result */ |
||
2343 | reg = FDI_RX_IMR(pipe); |
||
2344 | temp = I915_READ(reg); |
||
2345 | temp &= ~FDI_RX_SYMBOL_LOCK; |
||
2346 | temp &= ~FDI_RX_BIT_LOCK; |
||
2347 | I915_WRITE(reg, temp); |
||
2348 | I915_READ(reg); |
||
2349 | udelay(150); |
||
2350 | |||
2351 | /* enable CPU FDI TX and PCH FDI RX */ |
||
2352 | reg = FDI_TX_CTL(pipe); |
||
2353 | temp = I915_READ(reg); |
||
2354 | temp &= ~(7 << 19); |
||
2355 | temp |= (intel_crtc->fdi_lanes - 1) << 19; |
||
2356 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2357 | temp |= FDI_LINK_TRAIN_PATTERN_1; |
||
2358 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
||
2359 | |||
2360 | reg = FDI_RX_CTL(pipe); |
||
2361 | temp = I915_READ(reg); |
||
2362 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2363 | temp |= FDI_LINK_TRAIN_PATTERN_1; |
||
2364 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
||
2365 | |||
2366 | POSTING_READ(reg); |
||
2367 | udelay(150); |
||
2368 | |||
2369 | /* Ironlake workaround, enable clock pointer after FDI enable*/ |
||
2370 | if (HAS_PCH_IBX(dev)) { |
||
2371 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); |
||
2372 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR | |
||
2373 | FDI_RX_PHASE_SYNC_POINTER_EN); |
||
2374 | } |
||
2375 | |||
2376 | reg = FDI_RX_IIR(pipe); |
||
2377 | for (tries = 0; tries < 5; tries++) { |
||
2378 | temp = I915_READ(reg); |
||
2379 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
||
2380 | |||
2381 | if ((temp & FDI_RX_BIT_LOCK)) { |
||
2382 | DRM_DEBUG_KMS("FDI train 1 done.\n"); |
||
2383 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
||
2384 | break; |
||
2385 | } |
||
2386 | } |
||
2387 | if (tries == 5) |
||
2388 | DRM_ERROR("FDI train 1 fail!\n"); |
||
2389 | |||
2390 | /* Train 2 */ |
||
2391 | reg = FDI_TX_CTL(pipe); |
||
2392 | temp = I915_READ(reg); |
||
2393 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2394 | temp |= FDI_LINK_TRAIN_PATTERN_2; |
||
2395 | I915_WRITE(reg, temp); |
||
2396 | |||
2397 | reg = FDI_RX_CTL(pipe); |
||
2398 | temp = I915_READ(reg); |
||
2399 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2400 | temp |= FDI_LINK_TRAIN_PATTERN_2; |
||
2401 | I915_WRITE(reg, temp); |
||
2402 | |||
2403 | POSTING_READ(reg); |
||
2404 | udelay(150); |
||
2405 | |||
2406 | reg = FDI_RX_IIR(pipe); |
||
2407 | for (tries = 0; tries < 5; tries++) { |
||
2408 | temp = I915_READ(reg); |
||
2409 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
||
2410 | |||
2411 | if (temp & FDI_RX_SYMBOL_LOCK) { |
||
2412 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
||
2413 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
||
2414 | break; |
||
2415 | } |
||
2416 | } |
||
2417 | if (tries == 5) |
||
2418 | DRM_ERROR("FDI train 2 fail!\n"); |
||
2419 | |||
2420 | DRM_DEBUG_KMS("FDI train done\n"); |
||
2421 | |||
2422 | } |
||
2423 | |||
2342 | Serge | 2424 | static const int snb_b_fdi_train_param[] = { |
2327 | Serge | 2425 | FDI_LINK_TRAIN_400MV_0DB_SNB_B, |
2426 | FDI_LINK_TRAIN_400MV_6DB_SNB_B, |
||
2427 | FDI_LINK_TRAIN_600MV_3_5DB_SNB_B, |
||
2428 | FDI_LINK_TRAIN_800MV_0DB_SNB_B, |
||
2429 | }; |
||
2430 | |||
2431 | /* The FDI link training functions for SNB/Cougarpoint. */ |
||
2432 | static void gen6_fdi_link_train(struct drm_crtc *crtc) |
||
2433 | { |
||
2434 | struct drm_device *dev = crtc->dev; |
||
2435 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2436 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2437 | int pipe = intel_crtc->pipe; |
||
3031 | serge | 2438 | u32 reg, temp, i, retry; |
2327 | Serge | 2439 | |
2440 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
||
2441 | for train result */ |
||
2442 | reg = FDI_RX_IMR(pipe); |
||
2443 | temp = I915_READ(reg); |
||
2444 | temp &= ~FDI_RX_SYMBOL_LOCK; |
||
2445 | temp &= ~FDI_RX_BIT_LOCK; |
||
2446 | I915_WRITE(reg, temp); |
||
2447 | |||
2448 | POSTING_READ(reg); |
||
2449 | udelay(150); |
||
2450 | |||
2451 | /* enable CPU FDI TX and PCH FDI RX */ |
||
2452 | reg = FDI_TX_CTL(pipe); |
||
2453 | temp = I915_READ(reg); |
||
2454 | temp &= ~(7 << 19); |
||
2455 | temp |= (intel_crtc->fdi_lanes - 1) << 19; |
||
2456 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2457 | temp |= FDI_LINK_TRAIN_PATTERN_1; |
||
2458 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
||
2459 | /* SNB-B */ |
||
2460 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; |
||
2461 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
||
2462 | |||
2463 | reg = FDI_RX_CTL(pipe); |
||
2464 | temp = I915_READ(reg); |
||
2465 | if (HAS_PCH_CPT(dev)) { |
||
2466 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; |
||
2467 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; |
||
2468 | } else { |
||
2469 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2470 | temp |= FDI_LINK_TRAIN_PATTERN_1; |
||
2471 | } |
||
2472 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
||
2473 | |||
2474 | POSTING_READ(reg); |
||
2475 | udelay(150); |
||
2476 | |||
2477 | if (HAS_PCH_CPT(dev)) |
||
2478 | cpt_phase_pointer_enable(dev, pipe); |
||
2479 | |||
2342 | Serge | 2480 | for (i = 0; i < 4; i++) { |
2327 | Serge | 2481 | reg = FDI_TX_CTL(pipe); |
2482 | temp = I915_READ(reg); |
||
2483 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
||
2484 | temp |= snb_b_fdi_train_param[i]; |
||
2485 | I915_WRITE(reg, temp); |
||
2486 | |||
2487 | POSTING_READ(reg); |
||
2488 | udelay(500); |
||
2489 | |||
3031 | serge | 2490 | for (retry = 0; retry < 5; retry++) { |
2327 | Serge | 2491 | reg = FDI_RX_IIR(pipe); |
2492 | temp = I915_READ(reg); |
||
2493 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
||
2494 | if (temp & FDI_RX_BIT_LOCK) { |
||
2495 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
||
2496 | DRM_DEBUG_KMS("FDI train 1 done.\n"); |
||
2497 | break; |
||
2498 | } |
||
3031 | serge | 2499 | udelay(50); |
2500 | } |
||
2501 | if (retry < 5) |
||
2502 | break; |
||
2327 | Serge | 2503 | } |
2504 | if (i == 4) |
||
2505 | DRM_ERROR("FDI train 1 fail!\n"); |
||
2506 | |||
2507 | /* Train 2 */ |
||
2508 | reg = FDI_TX_CTL(pipe); |
||
2509 | temp = I915_READ(reg); |
||
2510 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2511 | temp |= FDI_LINK_TRAIN_PATTERN_2; |
||
2512 | if (IS_GEN6(dev)) { |
||
2513 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
||
2514 | /* SNB-B */ |
||
2515 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; |
||
2516 | } |
||
2517 | I915_WRITE(reg, temp); |
||
2518 | |||
2519 | reg = FDI_RX_CTL(pipe); |
||
2520 | temp = I915_READ(reg); |
||
2521 | if (HAS_PCH_CPT(dev)) { |
||
2522 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; |
||
2523 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; |
||
2524 | } else { |
||
2525 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2526 | temp |= FDI_LINK_TRAIN_PATTERN_2; |
||
2527 | } |
||
2528 | I915_WRITE(reg, temp); |
||
2529 | |||
2530 | POSTING_READ(reg); |
||
2531 | udelay(150); |
||
2532 | |||
2342 | Serge | 2533 | for (i = 0; i < 4; i++) { |
2327 | Serge | 2534 | reg = FDI_TX_CTL(pipe); |
2535 | temp = I915_READ(reg); |
||
2536 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
||
2537 | temp |= snb_b_fdi_train_param[i]; |
||
2538 | I915_WRITE(reg, temp); |
||
2539 | |||
2540 | POSTING_READ(reg); |
||
2541 | udelay(500); |
||
2542 | |||
3031 | serge | 2543 | for (retry = 0; retry < 5; retry++) { |
2327 | Serge | 2544 | reg = FDI_RX_IIR(pipe); |
2545 | temp = I915_READ(reg); |
||
2546 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
||
2547 | if (temp & FDI_RX_SYMBOL_LOCK) { |
||
2548 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
||
2549 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
||
2550 | break; |
||
2551 | } |
||
3031 | serge | 2552 | udelay(50); |
2553 | } |
||
2554 | if (retry < 5) |
||
2555 | break; |
||
2327 | Serge | 2556 | } |
2557 | if (i == 4) |
||
2558 | DRM_ERROR("FDI train 2 fail!\n"); |
||
2559 | |||
2560 | DRM_DEBUG_KMS("FDI train done.\n"); |
||
2561 | } |
||
2562 | |||
2563 | /* Manual link training for Ivy Bridge A0 parts */ |
||
2564 | static void ivb_manual_fdi_link_train(struct drm_crtc *crtc) |
||
2565 | { |
||
2566 | struct drm_device *dev = crtc->dev; |
||
2567 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2568 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2569 | int pipe = intel_crtc->pipe; |
||
2570 | u32 reg, temp, i; |
||
2571 | |||
2572 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
||
2573 | for train result */ |
||
2574 | reg = FDI_RX_IMR(pipe); |
||
2575 | temp = I915_READ(reg); |
||
2576 | temp &= ~FDI_RX_SYMBOL_LOCK; |
||
2577 | temp &= ~FDI_RX_BIT_LOCK; |
||
2578 | I915_WRITE(reg, temp); |
||
2579 | |||
2580 | POSTING_READ(reg); |
||
2581 | udelay(150); |
||
2582 | |||
2583 | /* enable CPU FDI TX and PCH FDI RX */ |
||
2584 | reg = FDI_TX_CTL(pipe); |
||
2585 | temp = I915_READ(reg); |
||
2586 | temp &= ~(7 << 19); |
||
2587 | temp |= (intel_crtc->fdi_lanes - 1) << 19; |
||
2588 | temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB); |
||
2589 | temp |= FDI_LINK_TRAIN_PATTERN_1_IVB; |
||
2590 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
||
2591 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; |
||
2342 | Serge | 2592 | temp |= FDI_COMPOSITE_SYNC; |
2327 | Serge | 2593 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
2594 | |||
2595 | reg = FDI_RX_CTL(pipe); |
||
2596 | temp = I915_READ(reg); |
||
2597 | temp &= ~FDI_LINK_TRAIN_AUTO; |
||
2598 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; |
||
2599 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; |
||
2342 | Serge | 2600 | temp |= FDI_COMPOSITE_SYNC; |
2327 | Serge | 2601 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2602 | |||
2603 | POSTING_READ(reg); |
||
2604 | udelay(150); |
||
2605 | |||
2606 | if (HAS_PCH_CPT(dev)) |
||
2607 | cpt_phase_pointer_enable(dev, pipe); |
||
2608 | |||
2342 | Serge | 2609 | for (i = 0; i < 4; i++) { |
2327 | Serge | 2610 | reg = FDI_TX_CTL(pipe); |
2611 | temp = I915_READ(reg); |
||
2612 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
||
2613 | temp |= snb_b_fdi_train_param[i]; |
||
2614 | I915_WRITE(reg, temp); |
||
2615 | |||
2616 | POSTING_READ(reg); |
||
2617 | udelay(500); |
||
2618 | |||
2619 | reg = FDI_RX_IIR(pipe); |
||
2620 | temp = I915_READ(reg); |
||
2621 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
||
2622 | |||
2623 | if (temp & FDI_RX_BIT_LOCK || |
||
2624 | (I915_READ(reg) & FDI_RX_BIT_LOCK)) { |
||
2625 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
||
2626 | DRM_DEBUG_KMS("FDI train 1 done.\n"); |
||
2627 | break; |
||
2628 | } |
||
2629 | } |
||
2630 | if (i == 4) |
||
2631 | DRM_ERROR("FDI train 1 fail!\n"); |
||
2632 | |||
2633 | /* Train 2 */ |
||
2634 | reg = FDI_TX_CTL(pipe); |
||
2635 | temp = I915_READ(reg); |
||
2636 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
||
2637 | temp |= FDI_LINK_TRAIN_PATTERN_2_IVB; |
||
2638 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
||
2639 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; |
||
2640 | I915_WRITE(reg, temp); |
||
2641 | |||
2642 | reg = FDI_RX_CTL(pipe); |
||
2643 | temp = I915_READ(reg); |
||
2644 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; |
||
2645 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; |
||
2646 | I915_WRITE(reg, temp); |
||
2647 | |||
2648 | POSTING_READ(reg); |
||
2649 | udelay(150); |
||
2650 | |||
2342 | Serge | 2651 | for (i = 0; i < 4; i++) { |
2327 | Serge | 2652 | reg = FDI_TX_CTL(pipe); |
2653 | temp = I915_READ(reg); |
||
2654 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
||
2655 | temp |= snb_b_fdi_train_param[i]; |
||
2656 | I915_WRITE(reg, temp); |
||
2657 | |||
2658 | POSTING_READ(reg); |
||
2659 | udelay(500); |
||
2660 | |||
2661 | reg = FDI_RX_IIR(pipe); |
||
2662 | temp = I915_READ(reg); |
||
2663 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
||
2664 | |||
2665 | if (temp & FDI_RX_SYMBOL_LOCK) { |
||
2666 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
||
2667 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
||
2668 | break; |
||
2669 | } |
||
2670 | } |
||
2671 | if (i == 4) |
||
2672 | DRM_ERROR("FDI train 2 fail!\n"); |
||
2673 | |||
2674 | DRM_DEBUG_KMS("FDI train done.\n"); |
||
2675 | } |
||
2676 | |||
3031 | serge | 2677 | static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc) |
2327 | Serge | 2678 | { |
3031 | serge | 2679 | struct drm_device *dev = intel_crtc->base.dev; |
2327 | Serge | 2680 | struct drm_i915_private *dev_priv = dev->dev_private; |
2681 | int pipe = intel_crtc->pipe; |
||
2682 | u32 reg, temp; |
||
2683 | |||
2684 | /* Write the TU size bits so error detection works */ |
||
2685 | I915_WRITE(FDI_RX_TUSIZE1(pipe), |
||
2686 | I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK); |
||
2687 | |||
2688 | /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ |
||
2689 | reg = FDI_RX_CTL(pipe); |
||
2690 | temp = I915_READ(reg); |
||
2691 | temp &= ~((0x7 << 19) | (0x7 << 16)); |
||
2692 | temp |= (intel_crtc->fdi_lanes - 1) << 19; |
||
2693 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; |
||
2694 | I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE); |
||
2695 | |||
2696 | POSTING_READ(reg); |
||
2697 | udelay(200); |
||
2698 | |||
2699 | /* Switch from Rawclk to PCDclk */ |
||
2700 | temp = I915_READ(reg); |
||
2701 | I915_WRITE(reg, temp | FDI_PCDCLK); |
||
2702 | |||
2703 | POSTING_READ(reg); |
||
2704 | udelay(200); |
||
2705 | |||
3031 | serge | 2706 | /* On Haswell, the PLL configuration for ports and pipes is handled |
2707 | * separately, as part of DDI setup */ |
||
2708 | if (!IS_HASWELL(dev)) { |
||
2327 | Serge | 2709 | /* Enable CPU FDI TX PLL, always on for Ironlake */ |
2710 | reg = FDI_TX_CTL(pipe); |
||
2711 | temp = I915_READ(reg); |
||
2712 | if ((temp & FDI_TX_PLL_ENABLE) == 0) { |
||
2713 | I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE); |
||
2714 | |||
2715 | POSTING_READ(reg); |
||
2716 | udelay(100); |
||
2717 | } |
||
3031 | serge | 2718 | } |
2327 | Serge | 2719 | } |
2720 | |||
3031 | serge | 2721 | static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc) |
2722 | { |
||
2723 | struct drm_device *dev = intel_crtc->base.dev; |
||
2724 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2725 | int pipe = intel_crtc->pipe; |
||
2726 | u32 reg, temp; |
||
2727 | |||
2728 | /* Switch from PCDclk to Rawclk */ |
||
2729 | reg = FDI_RX_CTL(pipe); |
||
2730 | temp = I915_READ(reg); |
||
2731 | I915_WRITE(reg, temp & ~FDI_PCDCLK); |
||
2732 | |||
2733 | /* Disable CPU FDI TX PLL */ |
||
2734 | reg = FDI_TX_CTL(pipe); |
||
2735 | temp = I915_READ(reg); |
||
2736 | I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE); |
||
2737 | |||
2738 | POSTING_READ(reg); |
||
2739 | udelay(100); |
||
2740 | |||
2741 | reg = FDI_RX_CTL(pipe); |
||
2742 | temp = I915_READ(reg); |
||
2743 | I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE); |
||
2744 | |||
2745 | /* Wait for the clocks to turn off. */ |
||
2746 | POSTING_READ(reg); |
||
2747 | udelay(100); |
||
2748 | } |
||
2749 | |||
2327 | Serge | 2750 | static void cpt_phase_pointer_disable(struct drm_device *dev, int pipe) |
2751 | { |
||
2752 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2753 | u32 flags = I915_READ(SOUTH_CHICKEN1); |
||
2754 | |||
2755 | flags &= ~(FDI_PHASE_SYNC_EN(pipe)); |
||
2756 | I915_WRITE(SOUTH_CHICKEN1, flags); /* once to disable... */ |
||
2757 | flags &= ~(FDI_PHASE_SYNC_OVR(pipe)); |
||
2758 | I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to lock */ |
||
2759 | POSTING_READ(SOUTH_CHICKEN1); |
||
2760 | } |
||
2761 | static void ironlake_fdi_disable(struct drm_crtc *crtc) |
||
2762 | { |
||
2763 | struct drm_device *dev = crtc->dev; |
||
2764 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2765 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2766 | int pipe = intel_crtc->pipe; |
||
2767 | u32 reg, temp; |
||
2768 | |||
2769 | /* disable CPU FDI tx and PCH FDI rx */ |
||
2770 | reg = FDI_TX_CTL(pipe); |
||
2771 | temp = I915_READ(reg); |
||
2772 | I915_WRITE(reg, temp & ~FDI_TX_ENABLE); |
||
2773 | POSTING_READ(reg); |
||
2774 | |||
2775 | reg = FDI_RX_CTL(pipe); |
||
2776 | temp = I915_READ(reg); |
||
2777 | temp &= ~(0x7 << 16); |
||
2778 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; |
||
2779 | I915_WRITE(reg, temp & ~FDI_RX_ENABLE); |
||
2780 | |||
2781 | POSTING_READ(reg); |
||
2782 | udelay(100); |
||
2783 | |||
2784 | /* Ironlake workaround, disable clock pointer after downing FDI */ |
||
2785 | if (HAS_PCH_IBX(dev)) { |
||
2786 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); |
||
2787 | I915_WRITE(FDI_RX_CHICKEN(pipe), |
||
2788 | I915_READ(FDI_RX_CHICKEN(pipe) & |
||
2789 | ~FDI_RX_PHASE_SYNC_POINTER_EN)); |
||
2790 | } else if (HAS_PCH_CPT(dev)) { |
||
2791 | cpt_phase_pointer_disable(dev, pipe); |
||
2792 | } |
||
2793 | |||
2794 | /* still set train pattern 1 */ |
||
2795 | reg = FDI_TX_CTL(pipe); |
||
2796 | temp = I915_READ(reg); |
||
2797 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2798 | temp |= FDI_LINK_TRAIN_PATTERN_1; |
||
2799 | I915_WRITE(reg, temp); |
||
2800 | |||
2801 | reg = FDI_RX_CTL(pipe); |
||
2802 | temp = I915_READ(reg); |
||
2803 | if (HAS_PCH_CPT(dev)) { |
||
2804 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; |
||
2805 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; |
||
2806 | } else { |
||
2807 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2808 | temp |= FDI_LINK_TRAIN_PATTERN_1; |
||
2809 | } |
||
2810 | /* BPC in FDI rx is consistent with that in PIPECONF */ |
||
2811 | temp &= ~(0x07 << 16); |
||
2812 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; |
||
2813 | I915_WRITE(reg, temp); |
||
2814 | |||
2815 | POSTING_READ(reg); |
||
2816 | udelay(100); |
||
2817 | } |
||
2818 | |||
3031 | serge | 2819 | static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc) |
2327 | Serge | 2820 | { |
3031 | serge | 2821 | struct drm_device *dev = crtc->dev; |
2327 | Serge | 2822 | struct drm_i915_private *dev_priv = dev->dev_private; |
3031 | serge | 2823 | unsigned long flags; |
2824 | bool pending; |
||
2327 | Serge | 2825 | |
3031 | serge | 2826 | if (atomic_read(&dev_priv->mm.wedged)) |
2827 | return false; |
||
2327 | Serge | 2828 | |
3031 | serge | 2829 | spin_lock_irqsave(&dev->event_lock, flags); |
2830 | pending = to_intel_crtc(crtc)->unpin_work != NULL; |
||
2831 | spin_unlock_irqrestore(&dev->event_lock, flags); |
||
2832 | |||
2833 | return pending; |
||
2327 | Serge | 2834 | } |
2835 | |||
3031 | serge | 2836 | #if 0 |
2327 | Serge | 2837 | static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc) |
2838 | { |
||
3031 | serge | 2839 | struct drm_device *dev = crtc->dev; |
2840 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2327 | Serge | 2841 | |
2842 | if (crtc->fb == NULL) |
||
2843 | return; |
||
2844 | |||
2360 | Serge | 2845 | wait_event(dev_priv->pending_flip_queue, |
3031 | serge | 2846 | !intel_crtc_has_pending_flip(crtc)); |
2847 | |||
2848 | mutex_lock(&dev->struct_mutex); |
||
2849 | intel_finish_fb(crtc->fb); |
||
2850 | mutex_unlock(&dev->struct_mutex); |
||
2327 | Serge | 2851 | } |
3031 | serge | 2852 | #endif |
2327 | Serge | 2853 | |
2854 | static bool intel_crtc_driving_pch(struct drm_crtc *crtc) |
||
2855 | { |
||
2856 | struct drm_device *dev = crtc->dev; |
||
3031 | serge | 2857 | struct intel_encoder *intel_encoder; |
2327 | Serge | 2858 | |
2859 | /* |
||
2860 | * If there's a non-PCH eDP on this crtc, it must be DP_A, and that |
||
2861 | * must be driven by its own crtc; no sharing is possible. |
||
2862 | */ |
||
3031 | serge | 2863 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
2327 | Serge | 2864 | |
3031 | serge | 2865 | /* On Haswell, LPT PCH handles the VGA connection via FDI, and Haswell |
2866 | * CPU handles all others */ |
||
2867 | if (IS_HASWELL(dev)) { |
||
2868 | /* It is still unclear how this will work on PPT, so throw up a warning */ |
||
2869 | WARN_ON(!HAS_PCH_LPT(dev)); |
||
2870 | |||
2871 | if (intel_encoder->type == INTEL_OUTPUT_ANALOG) { |
||
2872 | DRM_DEBUG_KMS("Haswell detected DAC encoder, assuming is PCH\n"); |
||
2873 | return true; |
||
2874 | } else { |
||
2875 | DRM_DEBUG_KMS("Haswell detected encoder %d, assuming is CPU\n", |
||
2876 | intel_encoder->type); |
||
2877 | return false; |
||
2878 | } |
||
2879 | } |
||
2880 | |||
2881 | switch (intel_encoder->type) { |
||
2327 | Serge | 2882 | case INTEL_OUTPUT_EDP: |
3031 | serge | 2883 | if (!intel_encoder_is_pch_edp(&intel_encoder->base)) |
2327 | Serge | 2884 | return false; |
2885 | continue; |
||
2886 | } |
||
2887 | } |
||
2888 | |||
2889 | return true; |
||
2890 | } |
||
2891 | |||
3031 | serge | 2892 | /* Program iCLKIP clock to the desired frequency */ |
2893 | static void lpt_program_iclkip(struct drm_crtc *crtc) |
||
2894 | { |
||
2895 | struct drm_device *dev = crtc->dev; |
||
2896 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2897 | u32 divsel, phaseinc, auxdiv, phasedir = 0; |
||
2898 | u32 temp; |
||
2899 | |||
2900 | /* It is necessary to ungate the pixclk gate prior to programming |
||
2901 | * the divisors, and gate it back when it is done. |
||
2902 | */ |
||
2903 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE); |
||
2904 | |||
2905 | /* Disable SSCCTL */ |
||
2906 | intel_sbi_write(dev_priv, SBI_SSCCTL6, |
||
2907 | intel_sbi_read(dev_priv, SBI_SSCCTL6) | |
||
2908 | SBI_SSCCTL_DISABLE); |
||
2909 | |||
2910 | /* 20MHz is a corner case which is out of range for the 7-bit divisor */ |
||
2911 | if (crtc->mode.clock == 20000) { |
||
2912 | auxdiv = 1; |
||
2913 | divsel = 0x41; |
||
2914 | phaseinc = 0x20; |
||
2915 | } else { |
||
2916 | /* The iCLK virtual clock root frequency is in MHz, |
||
2917 | * but the crtc->mode.clock in in KHz. To get the divisors, |
||
2918 | * it is necessary to divide one by another, so we |
||
2919 | * convert the virtual clock precision to KHz here for higher |
||
2920 | * precision. |
||
2921 | */ |
||
2922 | u32 iclk_virtual_root_freq = 172800 * 1000; |
||
2923 | u32 iclk_pi_range = 64; |
||
2924 | u32 desired_divisor, msb_divisor_value, pi_value; |
||
2925 | |||
2926 | desired_divisor = (iclk_virtual_root_freq / crtc->mode.clock); |
||
2927 | msb_divisor_value = desired_divisor / iclk_pi_range; |
||
2928 | pi_value = desired_divisor % iclk_pi_range; |
||
2929 | |||
2930 | auxdiv = 0; |
||
2931 | divsel = msb_divisor_value - 2; |
||
2932 | phaseinc = pi_value; |
||
2933 | } |
||
2934 | |||
2935 | /* This should not happen with any sane values */ |
||
2936 | WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) & |
||
2937 | ~SBI_SSCDIVINTPHASE_DIVSEL_MASK); |
||
2938 | WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) & |
||
2939 | ~SBI_SSCDIVINTPHASE_INCVAL_MASK); |
||
2940 | |||
2941 | DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n", |
||
2942 | crtc->mode.clock, |
||
2943 | auxdiv, |
||
2944 | divsel, |
||
2945 | phasedir, |
||
2946 | phaseinc); |
||
2947 | |||
2948 | /* Program SSCDIVINTPHASE6 */ |
||
2949 | temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6); |
||
2950 | temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK; |
||
2951 | temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel); |
||
2952 | temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK; |
||
2953 | temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc); |
||
2954 | temp |= SBI_SSCDIVINTPHASE_DIR(phasedir); |
||
2955 | temp |= SBI_SSCDIVINTPHASE_PROPAGATE; |
||
2956 | |||
2957 | intel_sbi_write(dev_priv, |
||
2958 | SBI_SSCDIVINTPHASE6, |
||
2959 | temp); |
||
2960 | |||
2961 | /* Program SSCAUXDIV */ |
||
2962 | temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6); |
||
2963 | temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1); |
||
2964 | temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv); |
||
2965 | intel_sbi_write(dev_priv, |
||
2966 | SBI_SSCAUXDIV6, |
||
2967 | temp); |
||
2968 | |||
2969 | |||
2970 | /* Enable modulator and associated divider */ |
||
2971 | temp = intel_sbi_read(dev_priv, SBI_SSCCTL6); |
||
2972 | temp &= ~SBI_SSCCTL_DISABLE; |
||
2973 | intel_sbi_write(dev_priv, |
||
2974 | SBI_SSCCTL6, |
||
2975 | temp); |
||
2976 | |||
2977 | /* Wait for initialization time */ |
||
2978 | udelay(24); |
||
2979 | |||
2980 | I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE); |
||
2981 | } |
||
2982 | |||
2327 | Serge | 2983 | /* |
2984 | * Enable PCH resources required for PCH ports: |
||
2985 | * - PCH PLLs |
||
2986 | * - FDI training & RX/TX |
||
2987 | * - update transcoder timings |
||
2988 | * - DP transcoding bits |
||
2989 | * - transcoder |
||
2990 | */ |
||
2991 | static void ironlake_pch_enable(struct drm_crtc *crtc) |
||
2992 | { |
||
2993 | struct drm_device *dev = crtc->dev; |
||
2994 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2995 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2996 | int pipe = intel_crtc->pipe; |
||
3031 | serge | 2997 | u32 reg, temp; |
2327 | Serge | 2998 | |
3031 | serge | 2999 | assert_transcoder_disabled(dev_priv, pipe); |
3000 | |||
2327 | Serge | 3001 | /* For PCH output, training FDI link */ |
3002 | dev_priv->display.fdi_link_train(crtc); |
||
3003 | |||
3031 | serge | 3004 | intel_enable_pch_pll(intel_crtc); |
2327 | Serge | 3005 | |
3031 | serge | 3006 | if (HAS_PCH_LPT(dev)) { |
3007 | DRM_DEBUG_KMS("LPT detected: programming iCLKIP\n"); |
||
3008 | lpt_program_iclkip(crtc); |
||
3009 | } else if (HAS_PCH_CPT(dev)) { |
||
3010 | u32 sel; |
||
2342 | Serge | 3011 | |
2327 | Serge | 3012 | temp = I915_READ(PCH_DPLL_SEL); |
3031 | serge | 3013 | switch (pipe) { |
3014 | default: |
||
3015 | case 0: |
||
3016 | temp |= TRANSA_DPLL_ENABLE; |
||
3017 | sel = TRANSA_DPLLB_SEL; |
||
3018 | break; |
||
3019 | case 1: |
||
3020 | temp |= TRANSB_DPLL_ENABLE; |
||
3021 | sel = TRANSB_DPLLB_SEL; |
||
3022 | break; |
||
3023 | case 2: |
||
3024 | temp |= TRANSC_DPLL_ENABLE; |
||
3025 | sel = TRANSC_DPLLB_SEL; |
||
3026 | break; |
||
2342 | Serge | 3027 | } |
3031 | serge | 3028 | if (intel_crtc->pch_pll->pll_reg == _PCH_DPLL_B) |
3029 | temp |= sel; |
||
3030 | else |
||
3031 | temp &= ~sel; |
||
2327 | Serge | 3032 | I915_WRITE(PCH_DPLL_SEL, temp); |
3033 | } |
||
3034 | |||
3035 | /* set transcoder timing, panel must allow it */ |
||
3036 | assert_panel_unlocked(dev_priv, pipe); |
||
3037 | I915_WRITE(TRANS_HTOTAL(pipe), I915_READ(HTOTAL(pipe))); |
||
3038 | I915_WRITE(TRANS_HBLANK(pipe), I915_READ(HBLANK(pipe))); |
||
3039 | I915_WRITE(TRANS_HSYNC(pipe), I915_READ(HSYNC(pipe))); |
||
3040 | |||
3041 | I915_WRITE(TRANS_VTOTAL(pipe), I915_READ(VTOTAL(pipe))); |
||
3042 | I915_WRITE(TRANS_VBLANK(pipe), I915_READ(VBLANK(pipe))); |
||
3043 | I915_WRITE(TRANS_VSYNC(pipe), I915_READ(VSYNC(pipe))); |
||
3031 | serge | 3044 | I915_WRITE(TRANS_VSYNCSHIFT(pipe), I915_READ(VSYNCSHIFT(pipe))); |
2327 | Serge | 3045 | |
3031 | serge | 3046 | if (!IS_HASWELL(dev)) |
2327 | Serge | 3047 | intel_fdi_normal_train(crtc); |
3048 | |||
3049 | /* For PCH DP, enable TRANS_DP_CTL */ |
||
3050 | if (HAS_PCH_CPT(dev) && |
||
2342 | Serge | 3051 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || |
3052 | intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) { |
||
2327 | Serge | 3053 | u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) >> 5; |
3054 | reg = TRANS_DP_CTL(pipe); |
||
3055 | temp = I915_READ(reg); |
||
3056 | temp &= ~(TRANS_DP_PORT_SEL_MASK | |
||
3057 | TRANS_DP_SYNC_MASK | |
||
3058 | TRANS_DP_BPC_MASK); |
||
3059 | temp |= (TRANS_DP_OUTPUT_ENABLE | |
||
3060 | TRANS_DP_ENH_FRAMING); |
||
3061 | temp |= bpc << 9; /* same format but at 11:9 */ |
||
3062 | |||
3063 | if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) |
||
3064 | temp |= TRANS_DP_HSYNC_ACTIVE_HIGH; |
||
3065 | if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC) |
||
3066 | temp |= TRANS_DP_VSYNC_ACTIVE_HIGH; |
||
3067 | |||
3068 | switch (intel_trans_dp_port_sel(crtc)) { |
||
3069 | case PCH_DP_B: |
||
3070 | temp |= TRANS_DP_PORT_SEL_B; |
||
3071 | break; |
||
3072 | case PCH_DP_C: |
||
3073 | temp |= TRANS_DP_PORT_SEL_C; |
||
3074 | break; |
||
3075 | case PCH_DP_D: |
||
3076 | temp |= TRANS_DP_PORT_SEL_D; |
||
3077 | break; |
||
3078 | default: |
||
3079 | DRM_DEBUG_KMS("Wrong PCH DP port return. Guess port B\n"); |
||
3080 | temp |= TRANS_DP_PORT_SEL_B; |
||
3081 | break; |
||
3082 | } |
||
3083 | |||
3084 | I915_WRITE(reg, temp); |
||
3085 | } |
||
3086 | |||
3087 | intel_enable_transcoder(dev_priv, pipe); |
||
3088 | } |
||
3089 | |||
3031 | serge | 3090 | static void intel_put_pch_pll(struct intel_crtc *intel_crtc) |
3091 | { |
||
3092 | struct intel_pch_pll *pll = intel_crtc->pch_pll; |
||
3093 | |||
3094 | if (pll == NULL) |
||
3095 | return; |
||
3096 | |||
3097 | if (pll->refcount == 0) { |
||
3098 | WARN(1, "bad PCH PLL refcount\n"); |
||
3099 | return; |
||
3100 | } |
||
3101 | |||
3102 | --pll->refcount; |
||
3103 | intel_crtc->pch_pll = NULL; |
||
3104 | } |
||
3105 | |||
3106 | static struct intel_pch_pll *intel_get_pch_pll(struct intel_crtc *intel_crtc, u32 dpll, u32 fp) |
||
3107 | { |
||
3108 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
||
3109 | struct intel_pch_pll *pll; |
||
3110 | int i; |
||
3111 | |||
3112 | pll = intel_crtc->pch_pll; |
||
3113 | if (pll) { |
||
3114 | DRM_DEBUG_KMS("CRTC:%d reusing existing PCH PLL %x\n", |
||
3115 | intel_crtc->base.base.id, pll->pll_reg); |
||
3116 | goto prepare; |
||
3117 | } |
||
3118 | |||
3119 | if (HAS_PCH_IBX(dev_priv->dev)) { |
||
3120 | /* Ironlake PCH has a fixed PLL->PCH pipe mapping. */ |
||
3121 | i = intel_crtc->pipe; |
||
3122 | pll = &dev_priv->pch_plls[i]; |
||
3123 | |||
3124 | DRM_DEBUG_KMS("CRTC:%d using pre-allocated PCH PLL %x\n", |
||
3125 | intel_crtc->base.base.id, pll->pll_reg); |
||
3126 | |||
3127 | goto found; |
||
3128 | } |
||
3129 | |||
3130 | for (i = 0; i < dev_priv->num_pch_pll; i++) { |
||
3131 | pll = &dev_priv->pch_plls[i]; |
||
3132 | |||
3133 | /* Only want to check enabled timings first */ |
||
3134 | if (pll->refcount == 0) |
||
3135 | continue; |
||
3136 | |||
3137 | if (dpll == (I915_READ(pll->pll_reg) & 0x7fffffff) && |
||
3138 | fp == I915_READ(pll->fp0_reg)) { |
||
3139 | DRM_DEBUG_KMS("CRTC:%d sharing existing PCH PLL %x (refcount %d, ative %d)\n", |
||
3140 | intel_crtc->base.base.id, |
||
3141 | pll->pll_reg, pll->refcount, pll->active); |
||
3142 | |||
3143 | goto found; |
||
3144 | } |
||
3145 | } |
||
3146 | |||
3147 | /* Ok no matching timings, maybe there's a free one? */ |
||
3148 | for (i = 0; i < dev_priv->num_pch_pll; i++) { |
||
3149 | pll = &dev_priv->pch_plls[i]; |
||
3150 | if (pll->refcount == 0) { |
||
3151 | DRM_DEBUG_KMS("CRTC:%d allocated PCH PLL %x\n", |
||
3152 | intel_crtc->base.base.id, pll->pll_reg); |
||
3153 | goto found; |
||
3154 | } |
||
3155 | } |
||
3156 | |||
3157 | return NULL; |
||
3158 | |||
3159 | found: |
||
3160 | intel_crtc->pch_pll = pll; |
||
3161 | pll->refcount++; |
||
3162 | DRM_DEBUG_DRIVER("using pll %d for pipe %d\n", i, intel_crtc->pipe); |
||
3163 | prepare: /* separate function? */ |
||
3164 | DRM_DEBUG_DRIVER("switching PLL %x off\n", pll->pll_reg); |
||
3165 | |||
3166 | /* Wait for the clocks to stabilize before rewriting the regs */ |
||
3167 | I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE); |
||
3168 | POSTING_READ(pll->pll_reg); |
||
3169 | udelay(150); |
||
3170 | |||
3171 | I915_WRITE(pll->fp0_reg, fp); |
||
3172 | I915_WRITE(pll->pll_reg, dpll & ~DPLL_VCO_ENABLE); |
||
3173 | pll->on = false; |
||
3174 | return pll; |
||
3175 | } |
||
3176 | |||
2342 | Serge | 3177 | void intel_cpt_verify_modeset(struct drm_device *dev, int pipe) |
3178 | { |
||
3179 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3180 | int dslreg = PIPEDSL(pipe), tc2reg = TRANS_CHICKEN2(pipe); |
||
3181 | u32 temp; |
||
3182 | |||
3183 | temp = I915_READ(dslreg); |
||
3184 | udelay(500); |
||
3185 | if (wait_for(I915_READ(dslreg) != temp, 5)) { |
||
3186 | /* Without this, mode sets may fail silently on FDI */ |
||
3187 | I915_WRITE(tc2reg, TRANS_AUTOTRAIN_GEN_STALL_DIS); |
||
3188 | udelay(250); |
||
3189 | I915_WRITE(tc2reg, 0); |
||
3190 | if (wait_for(I915_READ(dslreg) != temp, 5)) |
||
3191 | DRM_ERROR("mode set failed: pipe %d stuck\n", pipe); |
||
3192 | } |
||
3193 | } |
||
3194 | |||
2327 | Serge | 3195 | static void ironlake_crtc_enable(struct drm_crtc *crtc) |
3196 | { |
||
3197 | struct drm_device *dev = crtc->dev; |
||
3198 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3199 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
3031 | serge | 3200 | struct intel_encoder *encoder; |
2327 | Serge | 3201 | int pipe = intel_crtc->pipe; |
3202 | int plane = intel_crtc->plane; |
||
3203 | u32 temp; |
||
3204 | bool is_pch_port; |
||
3205 | |||
3031 | serge | 3206 | WARN_ON(!crtc->enabled); |
3207 | |||
2327 | Serge | 3208 | if (intel_crtc->active) |
3209 | return; |
||
3210 | |||
3211 | intel_crtc->active = true; |
||
3212 | intel_update_watermarks(dev); |
||
3213 | |||
3214 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
||
3215 | temp = I915_READ(PCH_LVDS); |
||
3216 | if ((temp & LVDS_PORT_EN) == 0) |
||
3217 | I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN); |
||
3218 | } |
||
3219 | |||
3220 | is_pch_port = intel_crtc_driving_pch(crtc); |
||
3221 | |||
3031 | serge | 3222 | if (is_pch_port) { |
3223 | ironlake_fdi_pll_enable(intel_crtc); |
||
3224 | } else { |
||
3225 | assert_fdi_tx_disabled(dev_priv, pipe); |
||
3226 | assert_fdi_rx_disabled(dev_priv, pipe); |
||
3227 | } |
||
2327 | Serge | 3228 | |
3031 | serge | 3229 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3230 | if (encoder->pre_enable) |
||
3231 | encoder->pre_enable(encoder); |
||
3232 | |||
2327 | Serge | 3233 | /* Enable panel fitting for LVDS */ |
3234 | if (dev_priv->pch_pf_size && |
||
3235 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) || HAS_eDP)) { |
||
3236 | /* Force use of hard-coded filter coefficients |
||
3237 | * as some pre-programmed values are broken, |
||
3238 | * e.g. x201. |
||
3239 | */ |
||
3240 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3); |
||
3241 | I915_WRITE(PF_WIN_POS(pipe), dev_priv->pch_pf_pos); |
||
3242 | I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size); |
||
3243 | } |
||
3244 | |||
3245 | /* |
||
3246 | * On ILK+ LUT must be loaded before the pipe is running but with |
||
3247 | * clocks enabled |
||
3248 | */ |
||
3249 | intel_crtc_load_lut(crtc); |
||
3250 | |||
3251 | intel_enable_pipe(dev_priv, pipe, is_pch_port); |
||
3252 | intel_enable_plane(dev_priv, plane, pipe); |
||
3253 | |||
3254 | if (is_pch_port) |
||
3255 | ironlake_pch_enable(crtc); |
||
3256 | |||
3257 | mutex_lock(&dev->struct_mutex); |
||
3258 | intel_update_fbc(dev); |
||
3259 | mutex_unlock(&dev->struct_mutex); |
||
3260 | |||
3261 | // intel_crtc_update_cursor(crtc, true); |
||
3031 | serge | 3262 | |
3263 | for_each_encoder_on_crtc(dev, crtc, encoder) |
||
3264 | encoder->enable(encoder); |
||
3265 | |||
3266 | if (HAS_PCH_CPT(dev)) |
||
3267 | intel_cpt_verify_modeset(dev, intel_crtc->pipe); |
||
3268 | |||
3269 | /* |
||
3270 | * There seems to be a race in PCH platform hw (at least on some |
||
3271 | * outputs) where an enabled pipe still completes any pageflip right |
||
3272 | * away (as if the pipe is off) instead of waiting for vblank. As soon |
||
3273 | * as the first vblank happend, everything works as expected. Hence just |
||
3274 | * wait for one vblank before returning to avoid strange things |
||
3275 | * happening. |
||
3276 | */ |
||
3277 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
||
2327 | Serge | 3278 | } |
3279 | |||
3280 | static void ironlake_crtc_disable(struct drm_crtc *crtc) |
||
3281 | { |
||
3282 | struct drm_device *dev = crtc->dev; |
||
3283 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3284 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
3031 | serge | 3285 | struct intel_encoder *encoder; |
2327 | Serge | 3286 | int pipe = intel_crtc->pipe; |
3287 | int plane = intel_crtc->plane; |
||
3288 | u32 reg, temp; |
||
3289 | |||
3031 | serge | 3290 | |
2327 | Serge | 3291 | if (!intel_crtc->active) |
3292 | return; |
||
3293 | |||
3031 | serge | 3294 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3295 | encoder->disable(encoder); |
||
2336 | Serge | 3296 | |
3031 | serge | 3297 | // intel_crtc_wait_for_pending_flips(crtc); |
2327 | Serge | 3298 | // drm_vblank_off(dev, pipe); |
3299 | // intel_crtc_update_cursor(crtc, false); |
||
3300 | |||
3301 | intel_disable_plane(dev_priv, plane, pipe); |
||
3302 | |||
3303 | if (dev_priv->cfb_plane == plane) |
||
3304 | intel_disable_fbc(dev); |
||
3305 | |||
3306 | intel_disable_pipe(dev_priv, pipe); |
||
3307 | |||
3308 | /* Disable PF */ |
||
3309 | I915_WRITE(PF_CTL(pipe), 0); |
||
3310 | I915_WRITE(PF_WIN_SZ(pipe), 0); |
||
3311 | |||
3031 | serge | 3312 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3313 | if (encoder->post_disable) |
||
3314 | encoder->post_disable(encoder); |
||
3315 | |||
2327 | Serge | 3316 | ironlake_fdi_disable(crtc); |
3317 | |||
3318 | intel_disable_transcoder(dev_priv, pipe); |
||
3319 | |||
3320 | if (HAS_PCH_CPT(dev)) { |
||
3321 | /* disable TRANS_DP_CTL */ |
||
3322 | reg = TRANS_DP_CTL(pipe); |
||
3323 | temp = I915_READ(reg); |
||
3324 | temp &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK); |
||
3325 | temp |= TRANS_DP_PORT_SEL_NONE; |
||
3326 | I915_WRITE(reg, temp); |
||
3327 | |||
3328 | /* disable DPLL_SEL */ |
||
3329 | temp = I915_READ(PCH_DPLL_SEL); |
||
3330 | switch (pipe) { |
||
3331 | case 0: |
||
2342 | Serge | 3332 | temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL); |
2327 | Serge | 3333 | break; |
3334 | case 1: |
||
3335 | temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); |
||
3336 | break; |
||
3337 | case 2: |
||
2342 | Serge | 3338 | /* C shares PLL A or B */ |
2327 | Serge | 3339 | temp &= ~(TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL); |
3340 | break; |
||
3341 | default: |
||
3342 | BUG(); /* wtf */ |
||
3343 | } |
||
3344 | I915_WRITE(PCH_DPLL_SEL, temp); |
||
3345 | } |
||
3346 | |||
3347 | /* disable PCH DPLL */ |
||
3031 | serge | 3348 | intel_disable_pch_pll(intel_crtc); |
2327 | Serge | 3349 | |
3031 | serge | 3350 | ironlake_fdi_pll_disable(intel_crtc); |
2327 | Serge | 3351 | |
3352 | intel_crtc->active = false; |
||
3353 | intel_update_watermarks(dev); |
||
3354 | |||
3355 | mutex_lock(&dev->struct_mutex); |
||
3356 | intel_update_fbc(dev); |
||
3357 | mutex_unlock(&dev->struct_mutex); |
||
3358 | } |
||
3359 | |||
3031 | serge | 3360 | static void ironlake_crtc_off(struct drm_crtc *crtc) |
2327 | Serge | 3361 | { |
3362 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
3031 | serge | 3363 | intel_put_pch_pll(intel_crtc); |
2327 | Serge | 3364 | } |
3365 | |||
3366 | static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable) |
||
3367 | { |
||
3368 | if (!enable && intel_crtc->overlay) { |
||
3369 | struct drm_device *dev = intel_crtc->base.dev; |
||
3370 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3371 | |||
3372 | mutex_lock(&dev->struct_mutex); |
||
3373 | dev_priv->mm.interruptible = false; |
||
3374 | // (void) intel_overlay_switch_off(intel_crtc->overlay); |
||
3375 | dev_priv->mm.interruptible = true; |
||
3376 | mutex_unlock(&dev->struct_mutex); |
||
3377 | } |
||
3378 | |||
3379 | /* Let userspace switch the overlay on again. In most cases userspace |
||
3380 | * has to recompute where to put it anyway. |
||
3381 | */ |
||
3382 | } |
||
3383 | |||
3384 | static void i9xx_crtc_enable(struct drm_crtc *crtc) |
||
3385 | { |
||
3386 | struct drm_device *dev = crtc->dev; |
||
3387 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3388 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
3031 | serge | 3389 | struct intel_encoder *encoder; |
2327 | Serge | 3390 | int pipe = intel_crtc->pipe; |
3391 | int plane = intel_crtc->plane; |
||
3392 | |||
3031 | serge | 3393 | WARN_ON(!crtc->enabled); |
3394 | |||
2327 | Serge | 3395 | if (intel_crtc->active) |
3396 | return; |
||
3397 | |||
3398 | intel_crtc->active = true; |
||
3399 | intel_update_watermarks(dev); |
||
3400 | |||
3401 | intel_enable_pll(dev_priv, pipe); |
||
3402 | intel_enable_pipe(dev_priv, pipe, false); |
||
3403 | intel_enable_plane(dev_priv, plane, pipe); |
||
3404 | |||
3405 | intel_crtc_load_lut(crtc); |
||
3406 | intel_update_fbc(dev); |
||
3407 | |||
3408 | /* Give the overlay scaler a chance to enable if it's on this pipe */ |
||
3409 | intel_crtc_dpms_overlay(intel_crtc, true); |
||
3410 | // intel_crtc_update_cursor(crtc, true); |
||
3031 | serge | 3411 | |
3412 | for_each_encoder_on_crtc(dev, crtc, encoder) |
||
3413 | encoder->enable(encoder); |
||
2327 | Serge | 3414 | } |
3415 | |||
3416 | static void i9xx_crtc_disable(struct drm_crtc *crtc) |
||
3417 | { |
||
3418 | struct drm_device *dev = crtc->dev; |
||
3419 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3420 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
3031 | serge | 3421 | struct intel_encoder *encoder; |
2327 | Serge | 3422 | int pipe = intel_crtc->pipe; |
3423 | int plane = intel_crtc->plane; |
||
3424 | |||
3031 | serge | 3425 | |
2327 | Serge | 3426 | if (!intel_crtc->active) |
3427 | return; |
||
3428 | |||
3031 | serge | 3429 | for_each_encoder_on_crtc(dev, crtc, encoder) |
3430 | encoder->disable(encoder); |
||
3431 | |||
2327 | Serge | 3432 | /* Give the overlay scaler a chance to disable if it's on this pipe */ |
3031 | serge | 3433 | // intel_crtc_wait_for_pending_flips(crtc); |
2327 | Serge | 3434 | // drm_vblank_off(dev, pipe); |
3435 | intel_crtc_dpms_overlay(intel_crtc, false); |
||
3436 | // intel_crtc_update_cursor(crtc, false); |
||
3437 | |||
3438 | if (dev_priv->cfb_plane == plane) |
||
3439 | intel_disable_fbc(dev); |
||
3440 | |||
3441 | intel_disable_plane(dev_priv, plane, pipe); |
||
3442 | intel_disable_pipe(dev_priv, pipe); |
||
3443 | intel_disable_pll(dev_priv, pipe); |
||
3444 | |||
3445 | intel_crtc->active = false; |
||
3446 | intel_update_fbc(dev); |
||
3447 | intel_update_watermarks(dev); |
||
3448 | } |
||
3449 | |||
3031 | serge | 3450 | static void i9xx_crtc_off(struct drm_crtc *crtc) |
2327 | Serge | 3451 | { |
3452 | } |
||
3453 | |||
3031 | serge | 3454 | static void intel_crtc_update_sarea(struct drm_crtc *crtc, |
3455 | bool enabled) |
||
2330 | Serge | 3456 | { |
3457 | struct drm_device *dev = crtc->dev; |
||
3458 | struct drm_i915_master_private *master_priv; |
||
3459 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
3460 | int pipe = intel_crtc->pipe; |
||
2327 | Serge | 3461 | |
3462 | |||
2340 | Serge | 3463 | #if 0 |
2330 | Serge | 3464 | if (!dev->primary->master) |
3465 | return; |
||
2327 | Serge | 3466 | |
2330 | Serge | 3467 | master_priv = dev->primary->master->driver_priv; |
3468 | if (!master_priv->sarea_priv) |
||
3469 | return; |
||
2327 | Serge | 3470 | |
2330 | Serge | 3471 | switch (pipe) { |
3472 | case 0: |
||
3473 | master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0; |
||
3474 | master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0; |
||
3475 | break; |
||
3476 | case 1: |
||
3477 | master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0; |
||
3478 | master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0; |
||
3479 | break; |
||
3480 | default: |
||
3481 | DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe)); |
||
3482 | break; |
||
3483 | } |
||
2340 | Serge | 3484 | #endif |
3485 | |||
2330 | Serge | 3486 | } |
2327 | Serge | 3487 | |
3031 | serge | 3488 | /** |
3489 | * Sets the power management mode of the pipe and plane. |
||
3490 | */ |
||
3491 | void intel_crtc_update_dpms(struct drm_crtc *crtc) |
||
3492 | { |
||
3493 | struct drm_device *dev = crtc->dev; |
||
3494 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3495 | struct intel_encoder *intel_encoder; |
||
3496 | bool enable = false; |
||
3497 | |||
3498 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) |
||
3499 | enable |= intel_encoder->connectors_active; |
||
3500 | |||
3501 | if (enable) |
||
3502 | dev_priv->display.crtc_enable(crtc); |
||
3503 | else |
||
3504 | dev_priv->display.crtc_disable(crtc); |
||
3505 | |||
3506 | intel_crtc_update_sarea(crtc, enable); |
||
3507 | } |
||
3508 | |||
3509 | static void intel_crtc_noop(struct drm_crtc *crtc) |
||
3510 | { |
||
3511 | } |
||
3512 | |||
2330 | Serge | 3513 | static void intel_crtc_disable(struct drm_crtc *crtc) |
3514 | { |
||
3515 | struct drm_device *dev = crtc->dev; |
||
3031 | serge | 3516 | struct drm_connector *connector; |
3517 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2327 | Serge | 3518 | |
3031 | serge | 3519 | /* crtc should still be enabled when we disable it. */ |
3520 | WARN_ON(!crtc->enabled); |
||
2327 | Serge | 3521 | |
3031 | serge | 3522 | dev_priv->display.crtc_disable(crtc); |
3523 | intel_crtc_update_sarea(crtc, false); |
||
3524 | dev_priv->display.off(crtc); |
||
3525 | |||
3526 | assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane); |
||
3527 | assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe); |
||
3528 | |||
3529 | // if (crtc->fb) { |
||
3530 | // mutex_lock(&dev->struct_mutex); |
||
3531 | // intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj); |
||
3532 | // mutex_unlock(&dev->struct_mutex); |
||
3533 | // crtc->fb = NULL; |
||
3534 | // } |
||
3535 | |||
3536 | /* Update computed state. */ |
||
3537 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
||
3538 | if (!connector->encoder || !connector->encoder->crtc) |
||
3539 | continue; |
||
3540 | |||
3541 | if (connector->encoder->crtc != crtc) |
||
3542 | continue; |
||
3543 | |||
3544 | connector->dpms = DRM_MODE_DPMS_OFF; |
||
3545 | to_intel_encoder(connector->encoder)->connectors_active = false; |
||
2330 | Serge | 3546 | } |
3547 | } |
||
2327 | Serge | 3548 | |
3031 | serge | 3549 | void intel_modeset_disable(struct drm_device *dev) |
2330 | Serge | 3550 | { |
3031 | serge | 3551 | struct drm_crtc *crtc; |
3552 | |||
3553 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
||
3554 | if (crtc->enabled) |
||
3555 | intel_crtc_disable(crtc); |
||
3556 | } |
||
2330 | Serge | 3557 | } |
2327 | Serge | 3558 | |
3031 | serge | 3559 | void intel_encoder_noop(struct drm_encoder *encoder) |
2330 | Serge | 3560 | { |
3561 | } |
||
2327 | Serge | 3562 | |
3031 | serge | 3563 | void intel_encoder_destroy(struct drm_encoder *encoder) |
2330 | Serge | 3564 | { |
3031 | serge | 3565 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); |
3566 | |||
3567 | drm_encoder_cleanup(encoder); |
||
3568 | kfree(intel_encoder); |
||
2330 | Serge | 3569 | } |
2327 | Serge | 3570 | |
3031 | serge | 3571 | /* Simple dpms helper for encodres with just one connector, no cloning and only |
3572 | * one kind of off state. It clamps all !ON modes to fully OFF and changes the |
||
3573 | * state of the entire output pipe. */ |
||
3574 | void intel_encoder_dpms(struct intel_encoder *encoder, int mode) |
||
2330 | Serge | 3575 | { |
3031 | serge | 3576 | if (mode == DRM_MODE_DPMS_ON) { |
3577 | encoder->connectors_active = true; |
||
3578 | |||
3579 | intel_crtc_update_dpms(encoder->base.crtc); |
||
3580 | } else { |
||
3581 | encoder->connectors_active = false; |
||
3582 | |||
3583 | intel_crtc_update_dpms(encoder->base.crtc); |
||
3584 | } |
||
2330 | Serge | 3585 | } |
2327 | Serge | 3586 | |
3031 | serge | 3587 | /* Cross check the actual hw state with our own modeset state tracking (and it's |
3588 | * internal consistency). */ |
||
3589 | static void intel_connector_check_state(struct intel_connector *connector) |
||
2330 | Serge | 3590 | { |
3031 | serge | 3591 | if (connector->get_hw_state(connector)) { |
3592 | struct intel_encoder *encoder = connector->encoder; |
||
3593 | struct drm_crtc *crtc; |
||
3594 | bool encoder_enabled; |
||
3595 | enum pipe pipe; |
||
3596 | |||
3597 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
||
3598 | connector->base.base.id, |
||
3599 | drm_get_connector_name(&connector->base)); |
||
3600 | |||
3601 | WARN(connector->base.dpms == DRM_MODE_DPMS_OFF, |
||
3602 | "wrong connector dpms state\n"); |
||
3603 | WARN(connector->base.encoder != &encoder->base, |
||
3604 | "active connector not linked to encoder\n"); |
||
3605 | WARN(!encoder->connectors_active, |
||
3606 | "encoder->connectors_active not set\n"); |
||
3607 | |||
3608 | encoder_enabled = encoder->get_hw_state(encoder, &pipe); |
||
3609 | WARN(!encoder_enabled, "encoder not enabled\n"); |
||
3610 | if (WARN_ON(!encoder->base.crtc)) |
||
3611 | return; |
||
3612 | |||
3613 | crtc = encoder->base.crtc; |
||
3614 | |||
3615 | WARN(!crtc->enabled, "crtc not enabled\n"); |
||
3616 | WARN(!to_intel_crtc(crtc)->active, "crtc not active\n"); |
||
3617 | WARN(pipe != to_intel_crtc(crtc)->pipe, |
||
3618 | "encoder active on the wrong pipe\n"); |
||
3619 | } |
||
2330 | Serge | 3620 | } |
2327 | Serge | 3621 | |
3031 | serge | 3622 | /* Even simpler default implementation, if there's really no special case to |
3623 | * consider. */ |
||
3624 | void intel_connector_dpms(struct drm_connector *connector, int mode) |
||
2330 | Serge | 3625 | { |
3031 | serge | 3626 | struct intel_encoder *encoder = intel_attached_encoder(connector); |
2342 | Serge | 3627 | |
3031 | serge | 3628 | /* All the simple cases only support two dpms states. */ |
3629 | if (mode != DRM_MODE_DPMS_ON) |
||
3630 | mode = DRM_MODE_DPMS_OFF; |
||
2342 | Serge | 3631 | |
3031 | serge | 3632 | if (mode == connector->dpms) |
3633 | return; |
||
3634 | |||
3635 | connector->dpms = mode; |
||
3636 | |||
3637 | /* Only need to change hw state when actually enabled */ |
||
3638 | if (encoder->base.crtc) |
||
3639 | intel_encoder_dpms(encoder, mode); |
||
3640 | else |
||
3641 | WARN_ON(encoder->connectors_active != false); |
||
3642 | |||
3643 | intel_modeset_check_state(connector->dev); |
||
2330 | Serge | 3644 | } |
2327 | Serge | 3645 | |
3031 | serge | 3646 | /* Simple connector->get_hw_state implementation for encoders that support only |
3647 | * one connector and no cloning and hence the encoder state determines the state |
||
3648 | * of the connector. */ |
||
3649 | bool intel_connector_get_hw_state(struct intel_connector *connector) |
||
2330 | Serge | 3650 | { |
3031 | serge | 3651 | enum pipe pipe = 0; |
3652 | struct intel_encoder *encoder = connector->encoder; |
||
2330 | Serge | 3653 | |
3031 | serge | 3654 | return encoder->get_hw_state(encoder, &pipe); |
2330 | Serge | 3655 | } |
3656 | |||
3657 | static bool intel_crtc_mode_fixup(struct drm_crtc *crtc, |
||
3031 | serge | 3658 | const struct drm_display_mode *mode, |
2330 | Serge | 3659 | struct drm_display_mode *adjusted_mode) |
3660 | { |
||
3661 | struct drm_device *dev = crtc->dev; |
||
3662 | |||
3663 | if (HAS_PCH_SPLIT(dev)) { |
||
3664 | /* FDI link clock is fixed at 2.7G */ |
||
3665 | if (mode->clock * 3 > IRONLAKE_FDI_FREQ * 4) |
||
3666 | return false; |
||
3667 | } |
||
3668 | |||
3031 | serge | 3669 | /* All interlaced capable intel hw wants timings in frames. Note though |
3670 | * that intel_lvds_mode_fixup does some funny tricks with the crtc |
||
3671 | * timings, so we need to be careful not to clobber these.*/ |
||
3672 | if (!(adjusted_mode->private_flags & INTEL_MODE_CRTC_TIMINGS_SET)) |
||
2330 | Serge | 3673 | drm_mode_set_crtcinfo(adjusted_mode, 0); |
3674 | |||
3031 | serge | 3675 | /* WaPruneModeWithIncorrectHsyncOffset: Cantiga+ cannot handle modes |
3676 | * with a hsync front porch of 0. |
||
3677 | */ |
||
3678 | if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) && |
||
3679 | adjusted_mode->hsync_start == adjusted_mode->hdisplay) |
||
3680 | return false; |
||
3681 | |||
2330 | Serge | 3682 | return true; |
3683 | } |
||
3684 | |||
3031 | serge | 3685 | static int valleyview_get_display_clock_speed(struct drm_device *dev) |
3686 | { |
||
3687 | return 400000; /* FIXME */ |
||
3688 | } |
||
3689 | |||
2327 | Serge | 3690 | static int i945_get_display_clock_speed(struct drm_device *dev) |
3691 | { |
||
3692 | return 400000; |
||
3693 | } |
||
3694 | |||
3695 | static int i915_get_display_clock_speed(struct drm_device *dev) |
||
3696 | { |
||
3697 | return 333000; |
||
3698 | } |
||
3699 | |||
3700 | static int i9xx_misc_get_display_clock_speed(struct drm_device *dev) |
||
3701 | { |
||
3702 | return 200000; |
||
3703 | } |
||
3704 | |||
3705 | static int i915gm_get_display_clock_speed(struct drm_device *dev) |
||
3706 | { |
||
3707 | u16 gcfgc = 0; |
||
3708 | |||
3709 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); |
||
3710 | |||
3711 | if (gcfgc & GC_LOW_FREQUENCY_ENABLE) |
||
3712 | return 133000; |
||
3713 | else { |
||
3714 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { |
||
3715 | case GC_DISPLAY_CLOCK_333_MHZ: |
||
3716 | return 333000; |
||
3717 | default: |
||
3718 | case GC_DISPLAY_CLOCK_190_200_MHZ: |
||
3719 | return 190000; |
||
3720 | } |
||
3721 | } |
||
3722 | } |
||
3723 | |||
3724 | static int i865_get_display_clock_speed(struct drm_device *dev) |
||
3725 | { |
||
3726 | return 266000; |
||
3727 | } |
||
3728 | |||
3729 | static int i855_get_display_clock_speed(struct drm_device *dev) |
||
3730 | { |
||
3731 | u16 hpllcc = 0; |
||
3732 | /* Assume that the hardware is in the high speed state. This |
||
3733 | * should be the default. |
||
3734 | */ |
||
3735 | switch (hpllcc & GC_CLOCK_CONTROL_MASK) { |
||
3736 | case GC_CLOCK_133_200: |
||
3737 | case GC_CLOCK_100_200: |
||
3738 | return 200000; |
||
3739 | case GC_CLOCK_166_250: |
||
3740 | return 250000; |
||
3741 | case GC_CLOCK_100_133: |
||
3742 | return 133000; |
||
3743 | } |
||
3744 | |||
3745 | /* Shouldn't happen */ |
||
3746 | return 0; |
||
3747 | } |
||
3748 | |||
3749 | static int i830_get_display_clock_speed(struct drm_device *dev) |
||
3750 | { |
||
3751 | return 133000; |
||
3752 | } |
||
3753 | |||
3754 | struct fdi_m_n { |
||
3755 | u32 tu; |
||
3756 | u32 gmch_m; |
||
3757 | u32 gmch_n; |
||
3758 | u32 link_m; |
||
3759 | u32 link_n; |
||
3760 | }; |
||
3761 | |||
3762 | static void |
||
3763 | fdi_reduce_ratio(u32 *num, u32 *den) |
||
3764 | { |
||
3765 | while (*num > 0xffffff || *den > 0xffffff) { |
||
3766 | *num >>= 1; |
||
3767 | *den >>= 1; |
||
3768 | } |
||
3769 | } |
||
3770 | |||
3771 | static void |
||
3772 | ironlake_compute_m_n(int bits_per_pixel, int nlanes, int pixel_clock, |
||
3773 | int link_clock, struct fdi_m_n *m_n) |
||
3774 | { |
||
3775 | m_n->tu = 64; /* default size */ |
||
3776 | |||
3777 | /* BUG_ON(pixel_clock > INT_MAX / 36); */ |
||
3778 | m_n->gmch_m = bits_per_pixel * pixel_clock; |
||
3779 | m_n->gmch_n = link_clock * nlanes * 8; |
||
3780 | fdi_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n); |
||
3781 | |||
3782 | m_n->link_m = pixel_clock; |
||
3783 | m_n->link_n = link_clock; |
||
3784 | fdi_reduce_ratio(&m_n->link_m, &m_n->link_n); |
||
3785 | } |
||
3786 | |||
3787 | static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) |
||
3788 | { |
||
2342 | Serge | 3789 | if (i915_panel_use_ssc >= 0) |
3790 | return i915_panel_use_ssc != 0; |
||
3791 | return dev_priv->lvds_use_ssc |
||
2327 | Serge | 3792 | && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE); |
3793 | } |
||
3794 | |||
3795 | /** |
||
3796 | * intel_choose_pipe_bpp_dither - figure out what color depth the pipe should send |
||
3797 | * @crtc: CRTC structure |
||
2342 | Serge | 3798 | * @mode: requested mode |
2327 | Serge | 3799 | * |
3800 | * A pipe may be connected to one or more outputs. Based on the depth of the |
||
3801 | * attached framebuffer, choose a good color depth to use on the pipe. |
||
3802 | * |
||
3803 | * If possible, match the pipe depth to the fb depth. In some cases, this |
||
3804 | * isn't ideal, because the connected output supports a lesser or restricted |
||
3805 | * set of depths. Resolve that here: |
||
3806 | * LVDS typically supports only 6bpc, so clamp down in that case |
||
3807 | * HDMI supports only 8bpc or 12bpc, so clamp to 8bpc with dither for 10bpc |
||
3808 | * Displays may support a restricted set as well, check EDID and clamp as |
||
3809 | * appropriate. |
||
2342 | Serge | 3810 | * DP may want to dither down to 6bpc to fit larger modes |
2327 | Serge | 3811 | * |
3812 | * RETURNS: |
||
3813 | * Dithering requirement (i.e. false if display bpc and pipe bpc match, |
||
3814 | * true if they don't match). |
||
3815 | */ |
||
3816 | static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc, |
||
3031 | serge | 3817 | struct drm_framebuffer *fb, |
2342 | Serge | 3818 | unsigned int *pipe_bpp, |
3819 | struct drm_display_mode *mode) |
||
2327 | Serge | 3820 | { |
3821 | struct drm_device *dev = crtc->dev; |
||
3822 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3823 | struct drm_connector *connector; |
||
3031 | serge | 3824 | struct intel_encoder *intel_encoder; |
2327 | Serge | 3825 | unsigned int display_bpc = UINT_MAX, bpc; |
3826 | |||
3827 | /* Walk the encoders & connectors on this crtc, get min bpc */ |
||
3031 | serge | 3828 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
2327 | Serge | 3829 | |
3830 | if (intel_encoder->type == INTEL_OUTPUT_LVDS) { |
||
3831 | unsigned int lvds_bpc; |
||
3832 | |||
3833 | if ((I915_READ(PCH_LVDS) & LVDS_A3_POWER_MASK) == |
||
3834 | LVDS_A3_POWER_UP) |
||
3835 | lvds_bpc = 8; |
||
3836 | else |
||
3837 | lvds_bpc = 6; |
||
3838 | |||
3839 | if (lvds_bpc < display_bpc) { |
||
2342 | Serge | 3840 | DRM_DEBUG_KMS("clamping display bpc (was %d) to LVDS (%d)\n", display_bpc, lvds_bpc); |
2327 | Serge | 3841 | display_bpc = lvds_bpc; |
3842 | } |
||
3843 | continue; |
||
3844 | } |
||
3845 | |||
3846 | /* Not one of the known troublemakers, check the EDID */ |
||
3847 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
||
3848 | head) { |
||
3031 | serge | 3849 | if (connector->encoder != &intel_encoder->base) |
2327 | Serge | 3850 | continue; |
3851 | |||
3852 | /* Don't use an invalid EDID bpc value */ |
||
3853 | if (connector->display_info.bpc && |
||
3854 | connector->display_info.bpc < display_bpc) { |
||
2342 | Serge | 3855 | DRM_DEBUG_KMS("clamping display bpc (was %d) to EDID reported max of %d\n", display_bpc, connector->display_info.bpc); |
2327 | Serge | 3856 | display_bpc = connector->display_info.bpc; |
3031 | serge | 3857 | } |
3858 | } |
||
2327 | Serge | 3859 | |
3120 | serge | 3860 | if (intel_encoder->type == INTEL_OUTPUT_EDP) { |
3861 | /* Use VBT settings if we have an eDP panel */ |
||
3862 | unsigned int edp_bpc = dev_priv->edp.bpp / 3; |
||
3863 | |||
3864 | if (edp_bpc < display_bpc) { |
||
3865 | DRM_DEBUG_KMS("clamping display bpc (was %d) to eDP (%d)\n", display_bpc, edp_bpc); |
||
3866 | display_bpc = edp_bpc; |
||
3867 | } |
||
3868 | continue; |
||
3869 | } |
||
3870 | |||
2327 | Serge | 3871 | /* |
3872 | * HDMI is either 12 or 8, so if the display lets 10bpc sneak |
||
3873 | * through, clamp it down. (Note: >12bpc will be caught below.) |
||
3874 | */ |
||
3875 | if (intel_encoder->type == INTEL_OUTPUT_HDMI) { |
||
3876 | if (display_bpc > 8 && display_bpc < 12) { |
||
2342 | Serge | 3877 | DRM_DEBUG_KMS("forcing bpc to 12 for HDMI\n"); |
2327 | Serge | 3878 | display_bpc = 12; |
3879 | } else { |
||
2342 | Serge | 3880 | DRM_DEBUG_KMS("forcing bpc to 8 for HDMI\n"); |
2327 | Serge | 3881 | display_bpc = 8; |
3882 | } |
||
3883 | } |
||
3884 | } |
||
3885 | |||
2342 | Serge | 3886 | if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) { |
3887 | DRM_DEBUG_KMS("Dithering DP to 6bpc\n"); |
||
3888 | display_bpc = 6; |
||
3889 | } |
||
3890 | |||
2327 | Serge | 3891 | /* |
3892 | * We could just drive the pipe at the highest bpc all the time and |
||
3893 | * enable dithering as needed, but that costs bandwidth. So choose |
||
3894 | * the minimum value that expresses the full color range of the fb but |
||
3895 | * also stays within the max display bpc discovered above. |
||
3896 | */ |
||
3897 | |||
3031 | serge | 3898 | switch (fb->depth) { |
2327 | Serge | 3899 | case 8: |
3900 | bpc = 8; /* since we go through a colormap */ |
||
3901 | break; |
||
3902 | case 15: |
||
3903 | case 16: |
||
3904 | bpc = 6; /* min is 18bpp */ |
||
3905 | break; |
||
3906 | case 24: |
||
2342 | Serge | 3907 | bpc = 8; |
2327 | Serge | 3908 | break; |
3909 | case 30: |
||
2342 | Serge | 3910 | bpc = 10; |
2327 | Serge | 3911 | break; |
3912 | case 48: |
||
2342 | Serge | 3913 | bpc = 12; |
2327 | Serge | 3914 | break; |
3915 | default: |
||
3916 | DRM_DEBUG("unsupported depth, assuming 24 bits\n"); |
||
3917 | bpc = min((unsigned int)8, display_bpc); |
||
3918 | break; |
||
3919 | } |
||
3920 | |||
2342 | Serge | 3921 | display_bpc = min(display_bpc, bpc); |
3922 | |||
3923 | DRM_DEBUG_KMS("setting pipe bpc to %d (max display bpc %d)\n", |
||
3031 | serge | 3924 | bpc, display_bpc); |
2327 | Serge | 3925 | |
2342 | Serge | 3926 | *pipe_bpp = display_bpc * 3; |
2327 | Serge | 3927 | |
3928 | return display_bpc != bpc; |
||
3929 | } |
||
3930 | |||
3031 | serge | 3931 | static int vlv_get_refclk(struct drm_crtc *crtc) |
2327 | Serge | 3932 | { |
3031 | serge | 3933 | struct drm_device *dev = crtc->dev; |
3934 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3935 | int refclk = 27000; /* for DP & HDMI */ |
||
2327 | Serge | 3936 | |
3031 | serge | 3937 | return 100000; /* only one validated so far */ |
2327 | Serge | 3938 | |
3031 | serge | 3939 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { |
3940 | refclk = 96000; |
||
3941 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
||
3942 | if (intel_panel_use_ssc(dev_priv)) |
||
3943 | refclk = 100000; |
||
3944 | else |
||
3945 | refclk = 96000; |
||
3946 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) { |
||
3947 | refclk = 100000; |
||
3948 | } |
||
2327 | Serge | 3949 | |
3031 | serge | 3950 | return refclk; |
3951 | } |
||
2327 | Serge | 3952 | |
3031 | serge | 3953 | static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors) |
3954 | { |
||
3955 | struct drm_device *dev = crtc->dev; |
||
3956 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3957 | int refclk; |
||
2327 | Serge | 3958 | |
3031 | serge | 3959 | if (IS_VALLEYVIEW(dev)) { |
3960 | refclk = vlv_get_refclk(crtc); |
||
3961 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && |
||
3962 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) { |
||
3963 | refclk = dev_priv->lvds_ssc_freq * 1000; |
||
3964 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", |
||
3965 | refclk / 1000); |
||
3966 | } else if (!IS_GEN2(dev)) { |
||
3967 | refclk = 96000; |
||
3968 | } else { |
||
3969 | refclk = 48000; |
||
3970 | } |
||
2327 | Serge | 3971 | |
3031 | serge | 3972 | return refclk; |
3973 | } |
||
2327 | Serge | 3974 | |
3031 | serge | 3975 | static void i9xx_adjust_sdvo_tv_clock(struct drm_display_mode *adjusted_mode, |
3976 | intel_clock_t *clock) |
||
3977 | { |
||
3978 | /* SDVO TV has fixed PLL values depend on its clock range, |
||
3979 | this mirrors vbios setting. */ |
||
3980 | if (adjusted_mode->clock >= 100000 |
||
3981 | && adjusted_mode->clock < 140500) { |
||
3982 | clock->p1 = 2; |
||
3983 | clock->p2 = 10; |
||
3984 | clock->n = 3; |
||
3985 | clock->m1 = 16; |
||
3986 | clock->m2 = 8; |
||
3987 | } else if (adjusted_mode->clock >= 140500 |
||
3988 | && adjusted_mode->clock <= 200000) { |
||
3989 | clock->p1 = 1; |
||
3990 | clock->p2 = 10; |
||
3991 | clock->n = 6; |
||
3992 | clock->m1 = 12; |
||
3993 | clock->m2 = 8; |
||
3994 | } |
||
3995 | } |
||
2327 | Serge | 3996 | |
3031 | serge | 3997 | static void i9xx_update_pll_dividers(struct drm_crtc *crtc, |
3998 | intel_clock_t *clock, |
||
3999 | intel_clock_t *reduced_clock) |
||
4000 | { |
||
4001 | struct drm_device *dev = crtc->dev; |
||
4002 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4003 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
4004 | int pipe = intel_crtc->pipe; |
||
4005 | u32 fp, fp2 = 0; |
||
2327 | Serge | 4006 | |
3031 | serge | 4007 | if (IS_PINEVIEW(dev)) { |
4008 | fp = (1 << clock->n) << 16 | clock->m1 << 8 | clock->m2; |
||
4009 | if (reduced_clock) |
||
4010 | fp2 = (1 << reduced_clock->n) << 16 | |
||
4011 | reduced_clock->m1 << 8 | reduced_clock->m2; |
||
4012 | } else { |
||
4013 | fp = clock->n << 16 | clock->m1 << 8 | clock->m2; |
||
4014 | if (reduced_clock) |
||
4015 | fp2 = reduced_clock->n << 16 | reduced_clock->m1 << 8 | |
||
4016 | reduced_clock->m2; |
||
4017 | } |
||
2327 | Serge | 4018 | |
3031 | serge | 4019 | I915_WRITE(FP0(pipe), fp); |
2327 | Serge | 4020 | |
3031 | serge | 4021 | intel_crtc->lowfreq_avail = false; |
4022 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && |
||
4023 | reduced_clock && i915_powersave) { |
||
4024 | I915_WRITE(FP1(pipe), fp2); |
||
4025 | intel_crtc->lowfreq_avail = true; |
||
4026 | } else { |
||
4027 | I915_WRITE(FP1(pipe), fp); |
||
4028 | } |
||
4029 | } |
||
2327 | Serge | 4030 | |
3031 | serge | 4031 | static void intel_update_lvds(struct drm_crtc *crtc, intel_clock_t *clock, |
4032 | struct drm_display_mode *adjusted_mode) |
||
4033 | { |
||
4034 | struct drm_device *dev = crtc->dev; |
||
4035 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4036 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
4037 | int pipe = intel_crtc->pipe; |
||
4038 | u32 temp; |
||
2327 | Serge | 4039 | |
3031 | serge | 4040 | temp = I915_READ(LVDS); |
4041 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; |
||
4042 | if (pipe == 1) { |
||
4043 | temp |= LVDS_PIPEB_SELECT; |
||
4044 | } else { |
||
4045 | temp &= ~LVDS_PIPEB_SELECT; |
||
4046 | } |
||
4047 | /* set the corresponsding LVDS_BORDER bit */ |
||
4048 | temp |= dev_priv->lvds_border_bits; |
||
4049 | /* Set the B0-B3 data pairs corresponding to whether we're going to |
||
4050 | * set the DPLLs for dual-channel mode or not. |
||
4051 | */ |
||
4052 | if (clock->p2 == 7) |
||
4053 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; |
||
4054 | else |
||
4055 | temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); |
||
2327 | Serge | 4056 | |
3031 | serge | 4057 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) |
4058 | * appropriately here, but we need to look more thoroughly into how |
||
4059 | * panels behave in the two modes. |
||
4060 | */ |
||
4061 | /* set the dithering flag on LVDS as needed */ |
||
4062 | if (INTEL_INFO(dev)->gen >= 4) { |
||
4063 | if (dev_priv->lvds_dither) |
||
4064 | temp |= LVDS_ENABLE_DITHER; |
||
4065 | else |
||
4066 | temp &= ~LVDS_ENABLE_DITHER; |
||
4067 | } |
||
4068 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); |
||
4069 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) |
||
4070 | temp |= LVDS_HSYNC_POLARITY; |
||
4071 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) |
||
4072 | temp |= LVDS_VSYNC_POLARITY; |
||
4073 | I915_WRITE(LVDS, temp); |
||
4074 | } |
||
2327 | Serge | 4075 | |
3031 | serge | 4076 | static void vlv_update_pll(struct drm_crtc *crtc, |
4077 | struct drm_display_mode *mode, |
||
4078 | struct drm_display_mode *adjusted_mode, |
||
4079 | intel_clock_t *clock, intel_clock_t *reduced_clock, |
||
4080 | int refclk, int num_connectors) |
||
4081 | { |
||
4082 | struct drm_device *dev = crtc->dev; |
||
4083 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4084 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
4085 | int pipe = intel_crtc->pipe; |
||
4086 | u32 dpll, mdiv, pdiv; |
||
4087 | u32 bestn, bestm1, bestm2, bestp1, bestp2; |
||
4088 | bool is_hdmi; |
||
2327 | Serge | 4089 | |
3031 | serge | 4090 | is_hdmi = intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI); |
2327 | Serge | 4091 | |
3031 | serge | 4092 | bestn = clock->n; |
4093 | bestm1 = clock->m1; |
||
4094 | bestm2 = clock->m2; |
||
4095 | bestp1 = clock->p1; |
||
4096 | bestp2 = clock->p2; |
||
4097 | |||
4098 | /* Enable DPIO clock input */ |
||
4099 | dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REFA_CLK_ENABLE_VLV | |
||
4100 | DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_CLOCK_VLV; |
||
4101 | I915_WRITE(DPLL(pipe), dpll); |
||
4102 | POSTING_READ(DPLL(pipe)); |
||
4103 | |||
4104 | mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK)); |
||
4105 | mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT)); |
||
4106 | mdiv |= ((bestn << DPIO_N_SHIFT)); |
||
4107 | mdiv |= (1 << DPIO_POST_DIV_SHIFT); |
||
4108 | mdiv |= (1 << DPIO_K_SHIFT); |
||
4109 | mdiv |= DPIO_ENABLE_CALIBRATION; |
||
4110 | intel_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv); |
||
4111 | |||
4112 | intel_dpio_write(dev_priv, DPIO_CORE_CLK(pipe), 0x01000000); |
||
4113 | |||
4114 | pdiv = DPIO_REFSEL_OVERRIDE | (5 << DPIO_PLL_MODESEL_SHIFT) | |
||
4115 | (3 << DPIO_BIAS_CURRENT_CTL_SHIFT) | (1<<20) | |
||
4116 | (8 << DPIO_DRIVER_CTL_SHIFT) | (5 << DPIO_CLK_BIAS_CTL_SHIFT); |
||
4117 | intel_dpio_write(dev_priv, DPIO_REFSFR(pipe), pdiv); |
||
4118 | |||
4119 | intel_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe), 0x009f0051); |
||
4120 | |||
4121 | dpll |= DPLL_VCO_ENABLE; |
||
4122 | I915_WRITE(DPLL(pipe), dpll); |
||
4123 | POSTING_READ(DPLL(pipe)); |
||
4124 | if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1)) |
||
4125 | DRM_ERROR("DPLL %d failed to lock\n", pipe); |
||
4126 | |||
4127 | if (is_hdmi) { |
||
4128 | u32 temp = intel_mode_get_pixel_multiplier(adjusted_mode); |
||
4129 | |||
4130 | if (temp > 1) |
||
4131 | temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; |
||
4132 | else |
||
4133 | temp = 0; |
||
4134 | |||
4135 | I915_WRITE(DPLL_MD(pipe), temp); |
||
4136 | POSTING_READ(DPLL_MD(pipe)); |
||
4137 | } |
||
4138 | |||
4139 | intel_dpio_write(dev_priv, DPIO_FASTCLK_DISABLE, 0x641); /* ??? */ |
||
4140 | } |
||
4141 | |||
4142 | static void i9xx_update_pll(struct drm_crtc *crtc, |
||
4143 | struct drm_display_mode *mode, |
||
4144 | struct drm_display_mode *adjusted_mode, |
||
4145 | intel_clock_t *clock, intel_clock_t *reduced_clock, |
||
4146 | int num_connectors) |
||
4147 | { |
||
4148 | struct drm_device *dev = crtc->dev; |
||
4149 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4150 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
4151 | int pipe = intel_crtc->pipe; |
||
4152 | u32 dpll; |
||
4153 | bool is_sdvo; |
||
4154 | |||
4155 | is_sdvo = intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO) || |
||
4156 | intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI); |
||
4157 | |||
4158 | dpll = DPLL_VGA_MODE_DIS; |
||
4159 | |||
4160 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
||
4161 | dpll |= DPLLB_MODE_LVDS; |
||
4162 | else |
||
4163 | dpll |= DPLLB_MODE_DAC_SERIAL; |
||
4164 | if (is_sdvo) { |
||
4165 | int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); |
||
4166 | if (pixel_multiplier > 1) { |
||
4167 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) |
||
4168 | dpll |= (pixel_multiplier - 1) << SDVO_MULTIPLIER_SHIFT_HIRES; |
||
2342 | Serge | 4169 | } |
3031 | serge | 4170 | dpll |= DPLL_DVO_HIGH_SPEED; |
2342 | Serge | 4171 | } |
3031 | serge | 4172 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) |
4173 | dpll |= DPLL_DVO_HIGH_SPEED; |
||
2342 | Serge | 4174 | |
3031 | serge | 4175 | /* compute bitmask from p1 value */ |
4176 | if (IS_PINEVIEW(dev)) |
||
4177 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW; |
||
4178 | else { |
||
4179 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
||
4180 | if (IS_G4X(dev) && reduced_clock) |
||
4181 | dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; |
||
4182 | } |
||
4183 | switch (clock->p2) { |
||
4184 | case 5: |
||
4185 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; |
||
4186 | break; |
||
4187 | case 7: |
||
4188 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; |
||
4189 | break; |
||
4190 | case 10: |
||
4191 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; |
||
4192 | break; |
||
4193 | case 14: |
||
4194 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; |
||
4195 | break; |
||
4196 | } |
||
4197 | if (INTEL_INFO(dev)->gen >= 4) |
||
4198 | dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT); |
||
2327 | Serge | 4199 | |
3031 | serge | 4200 | if (is_sdvo && intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) |
4201 | dpll |= PLL_REF_INPUT_TVCLKINBC; |
||
4202 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) |
||
4203 | /* XXX: just matching BIOS for now */ |
||
4204 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ |
||
4205 | dpll |= 3; |
||
4206 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && |
||
4207 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
||
4208 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
||
4209 | else |
||
4210 | dpll |= PLL_REF_INPUT_DREFCLK; |
||
2327 | Serge | 4211 | |
3031 | serge | 4212 | dpll |= DPLL_VCO_ENABLE; |
4213 | I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); |
||
4214 | POSTING_READ(DPLL(pipe)); |
||
4215 | udelay(150); |
||
2327 | Serge | 4216 | |
3031 | serge | 4217 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. |
4218 | * This is an exception to the general rule that mode_set doesn't turn |
||
4219 | * things on. |
||
4220 | */ |
||
4221 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
||
4222 | intel_update_lvds(crtc, clock, adjusted_mode); |
||
2327 | Serge | 4223 | |
3031 | serge | 4224 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) |
4225 | intel_dp_set_m_n(crtc, mode, adjusted_mode); |
||
2327 | Serge | 4226 | |
3031 | serge | 4227 | I915_WRITE(DPLL(pipe), dpll); |
2327 | Serge | 4228 | |
3031 | serge | 4229 | /* Wait for the clocks to stabilize. */ |
4230 | POSTING_READ(DPLL(pipe)); |
||
4231 | udelay(150); |
||
2327 | Serge | 4232 | |
3031 | serge | 4233 | if (INTEL_INFO(dev)->gen >= 4) { |
4234 | u32 temp = 0; |
||
4235 | if (is_sdvo) { |
||
4236 | temp = intel_mode_get_pixel_multiplier(adjusted_mode); |
||
4237 | if (temp > 1) |
||
4238 | temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; |
||
4239 | else |
||
4240 | temp = 0; |
||
4241 | } |
||
4242 | I915_WRITE(DPLL_MD(pipe), temp); |
||
4243 | } else { |
||
4244 | /* The pixel multiplier can only be updated once the |
||
4245 | * DPLL is enabled and the clocks are stable. |
||
4246 | * |
||
4247 | * So write it again. |
||
4248 | */ |
||
4249 | I915_WRITE(DPLL(pipe), dpll); |
||
4250 | } |
||
4251 | } |
||
2327 | Serge | 4252 | |
3031 | serge | 4253 | static void i8xx_update_pll(struct drm_crtc *crtc, |
4254 | struct drm_display_mode *adjusted_mode, |
||
4255 | intel_clock_t *clock, |
||
4256 | int num_connectors) |
||
4257 | { |
||
4258 | struct drm_device *dev = crtc->dev; |
||
4259 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4260 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
4261 | int pipe = intel_crtc->pipe; |
||
4262 | u32 dpll; |
||
2327 | Serge | 4263 | |
3031 | serge | 4264 | dpll = DPLL_VGA_MODE_DIS; |
2327 | Serge | 4265 | |
3031 | serge | 4266 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
4267 | dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
||
4268 | } else { |
||
4269 | if (clock->p1 == 2) |
||
4270 | dpll |= PLL_P1_DIVIDE_BY_TWO; |
||
4271 | else |
||
4272 | dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
||
4273 | if (clock->p2 == 4) |
||
4274 | dpll |= PLL_P2_DIVIDE_BY_4; |
||
4275 | } |
||
2327 | Serge | 4276 | |
3031 | serge | 4277 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_TVOUT)) |
4278 | /* XXX: just matching BIOS for now */ |
||
4279 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ |
||
4280 | dpll |= 3; |
||
4281 | else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && |
||
4282 | intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
||
4283 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
||
4284 | else |
||
4285 | dpll |= PLL_REF_INPUT_DREFCLK; |
||
4286 | |||
4287 | dpll |= DPLL_VCO_ENABLE; |
||
4288 | I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); |
||
4289 | POSTING_READ(DPLL(pipe)); |
||
4290 | udelay(150); |
||
4291 | |||
4292 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. |
||
4293 | * This is an exception to the general rule that mode_set doesn't turn |
||
4294 | * things on. |
||
4295 | */ |
||
4296 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
||
4297 | intel_update_lvds(crtc, clock, adjusted_mode); |
||
4298 | |||
4299 | I915_WRITE(DPLL(pipe), dpll); |
||
4300 | |||
4301 | /* Wait for the clocks to stabilize. */ |
||
4302 | POSTING_READ(DPLL(pipe)); |
||
4303 | udelay(150); |
||
4304 | |||
4305 | /* The pixel multiplier can only be updated once the |
||
4306 | * DPLL is enabled and the clocks are stable. |
||
4307 | * |
||
4308 | * So write it again. |
||
4309 | */ |
||
4310 | I915_WRITE(DPLL(pipe), dpll); |
||
4311 | } |
||
4312 | |||
4313 | static int i9xx_crtc_mode_set(struct drm_crtc *crtc, |
||
4314 | struct drm_display_mode *mode, |
||
4315 | struct drm_display_mode *adjusted_mode, |
||
4316 | int x, int y, |
||
4317 | struct drm_framebuffer *fb) |
||
4318 | { |
||
4319 | struct drm_device *dev = crtc->dev; |
||
4320 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4321 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
4322 | int pipe = intel_crtc->pipe; |
||
4323 | int plane = intel_crtc->plane; |
||
4324 | int refclk, num_connectors = 0; |
||
4325 | intel_clock_t clock, reduced_clock; |
||
4326 | u32 dspcntr, pipeconf, vsyncshift; |
||
4327 | bool ok, has_reduced_clock = false, is_sdvo = false; |
||
4328 | bool is_lvds = false, is_tv = false, is_dp = false; |
||
4329 | struct intel_encoder *encoder; |
||
4330 | const intel_limit_t *limit; |
||
4331 | int ret; |
||
4332 | |||
4333 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
||
4334 | switch (encoder->type) { |
||
4335 | case INTEL_OUTPUT_LVDS: |
||
4336 | is_lvds = true; |
||
4337 | break; |
||
4338 | case INTEL_OUTPUT_SDVO: |
||
4339 | case INTEL_OUTPUT_HDMI: |
||
4340 | is_sdvo = true; |
||
4341 | if (encoder->needs_tv_clock) |
||
4342 | is_tv = true; |
||
4343 | break; |
||
4344 | case INTEL_OUTPUT_TVOUT: |
||
4345 | is_tv = true; |
||
4346 | break; |
||
4347 | case INTEL_OUTPUT_DISPLAYPORT: |
||
4348 | is_dp = true; |
||
4349 | break; |
||
4350 | } |
||
4351 | |||
4352 | num_connectors++; |
||
4353 | } |
||
4354 | |||
4355 | refclk = i9xx_get_refclk(crtc, num_connectors); |
||
4356 | |||
4357 | /* |
||
4358 | * Returns a set of divisors for the desired target clock with the given |
||
4359 | * refclk, or FALSE. The returned values represent the clock equation: |
||
4360 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. |
||
4361 | */ |
||
4362 | limit = intel_limit(crtc, refclk); |
||
4363 | ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL, |
||
4364 | &clock); |
||
4365 | if (!ok) { |
||
4366 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); |
||
4367 | return -EINVAL; |
||
4368 | } |
||
4369 | |||
4370 | /* Ensure that the cursor is valid for the new mode before changing... */ |
||
4371 | // intel_crtc_update_cursor(crtc, true); |
||
4372 | |||
4373 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
||
4374 | /* |
||
4375 | * Ensure we match the reduced clock's P to the target clock. |
||
4376 | * If the clocks don't match, we can't switch the display clock |
||
4377 | * by using the FP0/FP1. In such case we will disable the LVDS |
||
4378 | * downclock feature. |
||
4379 | */ |
||
4380 | has_reduced_clock = limit->find_pll(limit, crtc, |
||
4381 | dev_priv->lvds_downclock, |
||
4382 | refclk, |
||
4383 | &clock, |
||
4384 | &reduced_clock); |
||
4385 | } |
||
4386 | |||
4387 | if (is_sdvo && is_tv) |
||
4388 | i9xx_adjust_sdvo_tv_clock(adjusted_mode, &clock); |
||
4389 | |||
4390 | i9xx_update_pll_dividers(crtc, &clock, has_reduced_clock ? |
||
4391 | &reduced_clock : NULL); |
||
4392 | |||
4393 | if (IS_GEN2(dev)) |
||
4394 | i8xx_update_pll(crtc, adjusted_mode, &clock, num_connectors); |
||
4395 | else if (IS_VALLEYVIEW(dev)) |
||
4396 | vlv_update_pll(crtc, mode,adjusted_mode, &clock, NULL, |
||
4397 | refclk, num_connectors); |
||
4398 | else |
||
4399 | i9xx_update_pll(crtc, mode, adjusted_mode, &clock, |
||
4400 | has_reduced_clock ? &reduced_clock : NULL, |
||
4401 | num_connectors); |
||
4402 | |||
4403 | /* setup pipeconf */ |
||
4404 | pipeconf = I915_READ(PIPECONF(pipe)); |
||
4405 | |||
4406 | /* Set up the display plane register */ |
||
4407 | dspcntr = DISPPLANE_GAMMA_ENABLE; |
||
4408 | |||
4409 | if (pipe == 0) |
||
4410 | dspcntr &= ~DISPPLANE_SEL_PIPE_MASK; |
||
4411 | else |
||
4412 | dspcntr |= DISPPLANE_SEL_PIPE_B; |
||
4413 | |||
4414 | if (pipe == 0 && INTEL_INFO(dev)->gen < 4) { |
||
4415 | /* Enable pixel doubling when the dot clock is > 90% of the (display) |
||
4416 | * core speed. |
||
4417 | * |
||
4418 | * XXX: No double-wide on 915GM pipe B. Is that the only reason for the |
||
4419 | * pipe == 0 check? |
||
4420 | */ |
||
4421 | if (mode->clock > |
||
4422 | dev_priv->display.get_display_clock_speed(dev) * 9 / 10) |
||
4423 | pipeconf |= PIPECONF_DOUBLE_WIDE; |
||
4424 | else |
||
4425 | pipeconf &= ~PIPECONF_DOUBLE_WIDE; |
||
4426 | } |
||
4427 | |||
4428 | /* default to 8bpc */ |
||
4429 | pipeconf &= ~(PIPECONF_BPP_MASK | PIPECONF_DITHER_EN); |
||
4430 | if (is_dp) { |
||
4431 | if (adjusted_mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) { |
||
4432 | pipeconf |= PIPECONF_BPP_6 | |
||
4433 | PIPECONF_DITHER_EN | |
||
4434 | PIPECONF_DITHER_TYPE_SP; |
||
4435 | } |
||
4436 | } |
||
4437 | |||
4438 | DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B'); |
||
4439 | drm_mode_debug_printmodeline(mode); |
||
4440 | |||
4441 | if (HAS_PIPE_CXSR(dev)) { |
||
4442 | if (intel_crtc->lowfreq_avail) { |
||
4443 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); |
||
4444 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; |
||
4445 | } else { |
||
4446 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); |
||
4447 | pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK; |
||
4448 | } |
||
4449 | } |
||
4450 | |||
2360 | Serge | 4451 | pipeconf &= ~PIPECONF_INTERLACE_MASK; |
3031 | serge | 4452 | if (!IS_GEN2(dev) && |
4453 | adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { |
||
4454 | pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; |
||
4455 | /* the chip adds 2 halflines automatically */ |
||
4456 | adjusted_mode->crtc_vtotal -= 1; |
||
4457 | adjusted_mode->crtc_vblank_end -= 1; |
||
4458 | vsyncshift = adjusted_mode->crtc_hsync_start |
||
4459 | - adjusted_mode->crtc_htotal/2; |
||
4460 | } else { |
||
2360 | Serge | 4461 | pipeconf |= PIPECONF_PROGRESSIVE; |
3031 | serge | 4462 | vsyncshift = 0; |
4463 | } |
||
2327 | Serge | 4464 | |
3031 | serge | 4465 | if (!IS_GEN3(dev)) |
4466 | I915_WRITE(VSYNCSHIFT(pipe), vsyncshift); |
||
2327 | Serge | 4467 | |
3031 | serge | 4468 | I915_WRITE(HTOTAL(pipe), |
4469 | (adjusted_mode->crtc_hdisplay - 1) | |
||
4470 | ((adjusted_mode->crtc_htotal - 1) << 16)); |
||
4471 | I915_WRITE(HBLANK(pipe), |
||
4472 | (adjusted_mode->crtc_hblank_start - 1) | |
||
4473 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); |
||
4474 | I915_WRITE(HSYNC(pipe), |
||
4475 | (adjusted_mode->crtc_hsync_start - 1) | |
||
4476 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); |
||
2327 | Serge | 4477 | |
3031 | serge | 4478 | I915_WRITE(VTOTAL(pipe), |
4479 | (adjusted_mode->crtc_vdisplay - 1) | |
||
4480 | ((adjusted_mode->crtc_vtotal - 1) << 16)); |
||
4481 | I915_WRITE(VBLANK(pipe), |
||
4482 | (adjusted_mode->crtc_vblank_start - 1) | |
||
4483 | ((adjusted_mode->crtc_vblank_end - 1) << 16)); |
||
4484 | I915_WRITE(VSYNC(pipe), |
||
4485 | (adjusted_mode->crtc_vsync_start - 1) | |
||
4486 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); |
||
2327 | Serge | 4487 | |
3031 | serge | 4488 | /* pipesrc and dspsize control the size that is scaled from, |
4489 | * which should always be the user's requested size. |
||
4490 | */ |
||
4491 | I915_WRITE(DSPSIZE(plane), |
||
4492 | ((mode->vdisplay - 1) << 16) | |
||
4493 | (mode->hdisplay - 1)); |
||
4494 | I915_WRITE(DSPPOS(plane), 0); |
||
4495 | I915_WRITE(PIPESRC(pipe), |
||
4496 | ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); |
||
2327 | Serge | 4497 | |
3031 | serge | 4498 | I915_WRITE(PIPECONF(pipe), pipeconf); |
4499 | POSTING_READ(PIPECONF(pipe)); |
||
4500 | intel_enable_pipe(dev_priv, pipe, false); |
||
2327 | Serge | 4501 | |
3031 | serge | 4502 | intel_wait_for_vblank(dev, pipe); |
2327 | Serge | 4503 | |
3031 | serge | 4504 | I915_WRITE(DSPCNTR(plane), dspcntr); |
4505 | POSTING_READ(DSPCNTR(plane)); |
||
2327 | Serge | 4506 | |
3031 | serge | 4507 | ret = intel_pipe_set_base(crtc, x, y, fb); |
2327 | Serge | 4508 | |
3031 | serge | 4509 | intel_update_watermarks(dev); |
4510 | |||
2327 | Serge | 4511 | return ret; |
4512 | } |
||
4513 | |||
2342 | Serge | 4514 | /* |
4515 | * Initialize reference clocks when the driver loads |
||
4516 | */ |
||
4517 | void ironlake_init_pch_refclk(struct drm_device *dev) |
||
2327 | Serge | 4518 | { |
4519 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4520 | struct drm_mode_config *mode_config = &dev->mode_config; |
||
4521 | struct intel_encoder *encoder; |
||
4522 | u32 temp; |
||
4523 | bool has_lvds = false; |
||
2342 | Serge | 4524 | bool has_cpu_edp = false; |
4525 | bool has_pch_edp = false; |
||
4526 | bool has_panel = false; |
||
4527 | bool has_ck505 = false; |
||
4528 | bool can_ssc = false; |
||
2327 | Serge | 4529 | |
4530 | /* We need to take the global config into account */ |
||
4531 | list_for_each_entry(encoder, &mode_config->encoder_list, |
||
4532 | base.head) { |
||
4533 | switch (encoder->type) { |
||
4534 | case INTEL_OUTPUT_LVDS: |
||
2342 | Serge | 4535 | has_panel = true; |
2327 | Serge | 4536 | has_lvds = true; |
2342 | Serge | 4537 | break; |
2327 | Serge | 4538 | case INTEL_OUTPUT_EDP: |
2342 | Serge | 4539 | has_panel = true; |
4540 | if (intel_encoder_is_pch_edp(&encoder->base)) |
||
4541 | has_pch_edp = true; |
||
4542 | else |
||
4543 | has_cpu_edp = true; |
||
2327 | Serge | 4544 | break; |
4545 | } |
||
4546 | } |
||
2342 | Serge | 4547 | |
4548 | if (HAS_PCH_IBX(dev)) { |
||
4549 | has_ck505 = dev_priv->display_clock_mode; |
||
4550 | can_ssc = has_ck505; |
||
4551 | } else { |
||
4552 | has_ck505 = false; |
||
4553 | can_ssc = true; |
||
2327 | Serge | 4554 | } |
4555 | |||
2342 | Serge | 4556 | DRM_DEBUG_KMS("has_panel %d has_lvds %d has_pch_edp %d has_cpu_edp %d has_ck505 %d\n", |
4557 | has_panel, has_lvds, has_pch_edp, has_cpu_edp, |
||
4558 | has_ck505); |
||
4559 | |||
2327 | Serge | 4560 | /* Ironlake: try to setup display ref clock before DPLL |
4561 | * enabling. This is only under driver's control after |
||
4562 | * PCH B stepping, previous chipset stepping should be |
||
4563 | * ignoring this setting. |
||
4564 | */ |
||
4565 | temp = I915_READ(PCH_DREF_CONTROL); |
||
4566 | /* Always enable nonspread source */ |
||
4567 | temp &= ~DREF_NONSPREAD_SOURCE_MASK; |
||
2342 | Serge | 4568 | |
4569 | if (has_ck505) |
||
4570 | temp |= DREF_NONSPREAD_CK505_ENABLE; |
||
4571 | else |
||
2327 | Serge | 4572 | temp |= DREF_NONSPREAD_SOURCE_ENABLE; |
2342 | Serge | 4573 | |
4574 | if (has_panel) { |
||
2327 | Serge | 4575 | temp &= ~DREF_SSC_SOURCE_MASK; |
4576 | temp |= DREF_SSC_SOURCE_ENABLE; |
||
4577 | |||
2342 | Serge | 4578 | /* SSC must be turned on before enabling the CPU output */ |
4579 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
||
4580 | DRM_DEBUG_KMS("Using SSC on panel\n"); |
||
4581 | temp |= DREF_SSC1_ENABLE; |
||
3031 | serge | 4582 | } else |
4583 | temp &= ~DREF_SSC1_ENABLE; |
||
2327 | Serge | 4584 | |
2342 | Serge | 4585 | /* Get SSC going before enabling the outputs */ |
2327 | Serge | 4586 | I915_WRITE(PCH_DREF_CONTROL, temp); |
4587 | POSTING_READ(PCH_DREF_CONTROL); |
||
4588 | udelay(200); |
||
2342 | Serge | 4589 | |
2327 | Serge | 4590 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
4591 | |||
4592 | /* Enable CPU source on CPU attached eDP */ |
||
2342 | Serge | 4593 | if (has_cpu_edp) { |
4594 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
||
4595 | DRM_DEBUG_KMS("Using SSC on eDP\n"); |
||
2327 | Serge | 4596 | temp |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; |
2342 | Serge | 4597 | } |
2327 | Serge | 4598 | else |
4599 | temp |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; |
||
2342 | Serge | 4600 | } else |
4601 | temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE; |
||
4602 | |||
4603 | I915_WRITE(PCH_DREF_CONTROL, temp); |
||
4604 | POSTING_READ(PCH_DREF_CONTROL); |
||
4605 | udelay(200); |
||
2327 | Serge | 4606 | } else { |
2342 | Serge | 4607 | DRM_DEBUG_KMS("Disabling SSC entirely\n"); |
4608 | |||
4609 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
||
4610 | |||
4611 | /* Turn off CPU output */ |
||
4612 | temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE; |
||
4613 | |||
2327 | Serge | 4614 | I915_WRITE(PCH_DREF_CONTROL, temp); |
4615 | POSTING_READ(PCH_DREF_CONTROL); |
||
4616 | udelay(200); |
||
2342 | Serge | 4617 | |
4618 | /* Turn off the SSC source */ |
||
4619 | temp &= ~DREF_SSC_SOURCE_MASK; |
||
4620 | temp |= DREF_SSC_SOURCE_DISABLE; |
||
4621 | |||
4622 | /* Turn off SSC1 */ |
||
4623 | temp &= ~ DREF_SSC1_ENABLE; |
||
4624 | |||
4625 | I915_WRITE(PCH_DREF_CONTROL, temp); |
||
4626 | POSTING_READ(PCH_DREF_CONTROL); |
||
4627 | udelay(200); |
||
2327 | Serge | 4628 | } |
4629 | } |
||
4630 | |||
2342 | Serge | 4631 | static int ironlake_get_refclk(struct drm_crtc *crtc) |
4632 | { |
||
4633 | struct drm_device *dev = crtc->dev; |
||
4634 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4635 | struct intel_encoder *encoder; |
||
4636 | struct intel_encoder *edp_encoder = NULL; |
||
4637 | int num_connectors = 0; |
||
4638 | bool is_lvds = false; |
||
4639 | |||
3031 | serge | 4640 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
2342 | Serge | 4641 | switch (encoder->type) { |
4642 | case INTEL_OUTPUT_LVDS: |
||
4643 | is_lvds = true; |
||
4644 | break; |
||
4645 | case INTEL_OUTPUT_EDP: |
||
4646 | edp_encoder = encoder; |
||
4647 | break; |
||
4648 | } |
||
4649 | num_connectors++; |
||
4650 | } |
||
4651 | |||
4652 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) { |
||
4653 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", |
||
4654 | dev_priv->lvds_ssc_freq); |
||
4655 | return dev_priv->lvds_ssc_freq * 1000; |
||
4656 | } |
||
4657 | |||
4658 | return 120000; |
||
4659 | } |
||
4660 | |||
3031 | serge | 4661 | static void ironlake_set_pipeconf(struct drm_crtc *crtc, |
4662 | struct drm_display_mode *adjusted_mode, |
||
4663 | bool dither) |
||
4664 | { |
||
4665 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
||
4666 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
4667 | int pipe = intel_crtc->pipe; |
||
4668 | uint32_t val; |
||
4669 | |||
4670 | val = I915_READ(PIPECONF(pipe)); |
||
4671 | |||
4672 | val &= ~PIPE_BPC_MASK; |
||
4673 | switch (intel_crtc->bpp) { |
||
4674 | case 18: |
||
4675 | val |= PIPE_6BPC; |
||
4676 | break; |
||
4677 | case 24: |
||
4678 | val |= PIPE_8BPC; |
||
4679 | break; |
||
4680 | case 30: |
||
4681 | val |= PIPE_10BPC; |
||
4682 | break; |
||
4683 | case 36: |
||
4684 | val |= PIPE_12BPC; |
||
4685 | break; |
||
4686 | default: |
||
4687 | val |= PIPE_8BPC; |
||
4688 | break; |
||
4689 | } |
||
4690 | |||
4691 | val &= ~(PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK); |
||
4692 | if (dither) |
||
4693 | val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP); |
||
4694 | |||
4695 | val &= ~PIPECONF_INTERLACE_MASK; |
||
4696 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) |
||
4697 | val |= PIPECONF_INTERLACED_ILK; |
||
4698 | else |
||
4699 | val |= PIPECONF_PROGRESSIVE; |
||
4700 | |||
4701 | I915_WRITE(PIPECONF(pipe), val); |
||
4702 | POSTING_READ(PIPECONF(pipe)); |
||
4703 | } |
||
4704 | |||
4705 | static bool ironlake_compute_clocks(struct drm_crtc *crtc, |
||
4706 | struct drm_display_mode *adjusted_mode, |
||
4707 | intel_clock_t *clock, |
||
4708 | bool *has_reduced_clock, |
||
4709 | intel_clock_t *reduced_clock) |
||
4710 | { |
||
4711 | struct drm_device *dev = crtc->dev; |
||
4712 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4713 | struct intel_encoder *intel_encoder; |
||
4714 | int refclk; |
||
4715 | const intel_limit_t *limit; |
||
4716 | bool ret, is_sdvo = false, is_tv = false, is_lvds = false; |
||
4717 | |||
4718 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
||
4719 | switch (intel_encoder->type) { |
||
4720 | case INTEL_OUTPUT_LVDS: |
||
4721 | is_lvds = true; |
||
4722 | break; |
||
4723 | case INTEL_OUTPUT_SDVO: |
||
4724 | case INTEL_OUTPUT_HDMI: |
||
4725 | is_sdvo = true; |
||
4726 | if (intel_encoder->needs_tv_clock) |
||
4727 | is_tv = true; |
||
4728 | break; |
||
4729 | case INTEL_OUTPUT_TVOUT: |
||
4730 | is_tv = true; |
||
4731 | break; |
||
4732 | } |
||
4733 | } |
||
4734 | |||
4735 | refclk = ironlake_get_refclk(crtc); |
||
4736 | |||
4737 | /* |
||
4738 | * Returns a set of divisors for the desired target clock with the given |
||
4739 | * refclk, or FALSE. The returned values represent the clock equation: |
||
4740 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. |
||
4741 | */ |
||
4742 | limit = intel_limit(crtc, refclk); |
||
4743 | ret = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, NULL, |
||
4744 | clock); |
||
4745 | if (!ret) |
||
4746 | return false; |
||
4747 | |||
4748 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
||
4749 | /* |
||
4750 | * Ensure we match the reduced clock's P to the target clock. |
||
4751 | * If the clocks don't match, we can't switch the display clock |
||
4752 | * by using the FP0/FP1. In such case we will disable the LVDS |
||
4753 | * downclock feature. |
||
4754 | */ |
||
4755 | *has_reduced_clock = limit->find_pll(limit, crtc, |
||
4756 | dev_priv->lvds_downclock, |
||
4757 | refclk, |
||
4758 | clock, |
||
4759 | reduced_clock); |
||
4760 | } |
||
4761 | |||
4762 | if (is_sdvo && is_tv) |
||
4763 | i9xx_adjust_sdvo_tv_clock(adjusted_mode, clock); |
||
4764 | |||
4765 | return true; |
||
4766 | } |
||
4767 | |||
2327 | Serge | 4768 | static int ironlake_crtc_mode_set(struct drm_crtc *crtc, |
4769 | struct drm_display_mode *mode, |
||
4770 | struct drm_display_mode *adjusted_mode, |
||
4771 | int x, int y, |
||
3031 | serge | 4772 | struct drm_framebuffer *fb) |
2327 | Serge | 4773 | { |
4774 | struct drm_device *dev = crtc->dev; |
||
4775 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4776 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
4777 | int pipe = intel_crtc->pipe; |
||
4778 | int plane = intel_crtc->plane; |
||
3031 | serge | 4779 | int num_connectors = 0; |
2327 | Serge | 4780 | intel_clock_t clock, reduced_clock; |
3031 | serge | 4781 | u32 dpll, fp = 0, fp2 = 0; |
2327 | Serge | 4782 | bool ok, has_reduced_clock = false, is_sdvo = false; |
4783 | bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false; |
||
3031 | serge | 4784 | struct intel_encoder *encoder, *edp_encoder = NULL; |
2327 | Serge | 4785 | int ret; |
4786 | struct fdi_m_n m_n = {0}; |
||
4787 | u32 temp; |
||
4788 | int target_clock, pixel_multiplier, lane, link_bw, factor; |
||
4789 | unsigned int pipe_bpp; |
||
4790 | bool dither; |
||
3031 | serge | 4791 | bool is_cpu_edp = false, is_pch_edp = false; |
2327 | Serge | 4792 | |
3031 | serge | 4793 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
2327 | Serge | 4794 | switch (encoder->type) { |
4795 | case INTEL_OUTPUT_LVDS: |
||
4796 | is_lvds = true; |
||
4797 | break; |
||
4798 | case INTEL_OUTPUT_SDVO: |
||
4799 | case INTEL_OUTPUT_HDMI: |
||
4800 | is_sdvo = true; |
||
4801 | if (encoder->needs_tv_clock) |
||
4802 | is_tv = true; |
||
4803 | break; |
||
4804 | case INTEL_OUTPUT_TVOUT: |
||
4805 | is_tv = true; |
||
4806 | break; |
||
4807 | case INTEL_OUTPUT_ANALOG: |
||
4808 | is_crt = true; |
||
4809 | break; |
||
4810 | case INTEL_OUTPUT_DISPLAYPORT: |
||
4811 | is_dp = true; |
||
4812 | break; |
||
4813 | case INTEL_OUTPUT_EDP: |
||
3031 | serge | 4814 | is_dp = true; |
4815 | if (intel_encoder_is_pch_edp(&encoder->base)) |
||
4816 | is_pch_edp = true; |
||
4817 | else |
||
4818 | is_cpu_edp = true; |
||
4819 | edp_encoder = encoder; |
||
2327 | Serge | 4820 | break; |
4821 | } |
||
4822 | |||
4823 | num_connectors++; |
||
4824 | } |
||
4825 | |||
3031 | serge | 4826 | ok = ironlake_compute_clocks(crtc, adjusted_mode, &clock, |
4827 | &has_reduced_clock, &reduced_clock); |
||
2327 | Serge | 4828 | if (!ok) { |
4829 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); |
||
4830 | return -EINVAL; |
||
4831 | } |
||
4832 | |||
4833 | /* Ensure that the cursor is valid for the new mode before changing... */ |
||
4834 | // intel_crtc_update_cursor(crtc, true); |
||
4835 | |||
4836 | /* FDI link */ |
||
4837 | pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); |
||
4838 | lane = 0; |
||
4839 | /* CPU eDP doesn't require FDI link, so just set DP M/N |
||
4840 | according to current link config */ |
||
3031 | serge | 4841 | if (is_cpu_edp) { |
4842 | intel_edp_link_config(edp_encoder, &lane, &link_bw); |
||
2327 | Serge | 4843 | } else { |
4844 | /* FDI is a binary signal running at ~2.7GHz, encoding |
||
4845 | * each output octet as 10 bits. The actual frequency |
||
4846 | * is stored as a divider into a 100MHz clock, and the |
||
4847 | * mode pixel clock is stored in units of 1KHz. |
||
4848 | * Hence the bw of each lane in terms of the mode signal |
||
4849 | * is: |
||
4850 | */ |
||
4851 | link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10; |
||
4852 | } |
||
4853 | |||
3031 | serge | 4854 | /* [e]DP over FDI requires target mode clock instead of link clock. */ |
4855 | if (edp_encoder) |
||
4856 | target_clock = intel_edp_target_clock(edp_encoder, mode); |
||
4857 | else if (is_dp) |
||
4858 | target_clock = mode->clock; |
||
4859 | else |
||
4860 | target_clock = adjusted_mode->clock; |
||
4861 | |||
2327 | Serge | 4862 | /* determine panel color depth */ |
3031 | serge | 4863 | dither = intel_choose_pipe_bpp_dither(crtc, fb, &pipe_bpp, |
4864 | adjusted_mode); |
||
4865 | if (is_lvds && dev_priv->lvds_dither) |
||
4866 | dither = true; |
||
4867 | |||
4868 | if (pipe_bpp != 18 && pipe_bpp != 24 && pipe_bpp != 30 && |
||
4869 | pipe_bpp != 36) { |
||
2327 | Serge | 4870 | WARN(1, "intel_choose_pipe_bpp returned invalid value %d\n", |
4871 | pipe_bpp); |
||
4872 | pipe_bpp = 24; |
||
4873 | } |
||
4874 | intel_crtc->bpp = pipe_bpp; |
||
4875 | |||
4876 | if (!lane) { |
||
4877 | /* |
||
4878 | * Account for spread spectrum to avoid |
||
4879 | * oversubscribing the link. Max center spread |
||
4880 | * is 2.5%; use 5% for safety's sake. |
||
4881 | */ |
||
4882 | u32 bps = target_clock * intel_crtc->bpp * 21 / 20; |
||
4883 | lane = bps / (link_bw * 8) + 1; |
||
4884 | } |
||
4885 | |||
4886 | intel_crtc->fdi_lanes = lane; |
||
4887 | |||
4888 | if (pixel_multiplier > 1) |
||
4889 | link_bw *= pixel_multiplier; |
||
4890 | ironlake_compute_m_n(intel_crtc->bpp, lane, target_clock, link_bw, |
||
4891 | &m_n); |
||
4892 | |||
4893 | fp = clock.n << 16 | clock.m1 << 8 | clock.m2; |
||
4894 | if (has_reduced_clock) |
||
4895 | fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 | |
||
4896 | reduced_clock.m2; |
||
4897 | |||
4898 | /* Enable autotuning of the PLL clock (if permissible) */ |
||
4899 | factor = 21; |
||
4900 | if (is_lvds) { |
||
4901 | if ((intel_panel_use_ssc(dev_priv) && |
||
4902 | dev_priv->lvds_ssc_freq == 100) || |
||
4903 | (I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP) |
||
4904 | factor = 25; |
||
4905 | } else if (is_sdvo && is_tv) |
||
4906 | factor = 20; |
||
4907 | |||
4908 | if (clock.m < factor * clock.n) |
||
4909 | fp |= FP_CB_TUNE; |
||
4910 | |||
4911 | dpll = 0; |
||
4912 | |||
4913 | if (is_lvds) |
||
4914 | dpll |= DPLLB_MODE_LVDS; |
||
4915 | else |
||
4916 | dpll |= DPLLB_MODE_DAC_SERIAL; |
||
4917 | if (is_sdvo) { |
||
4918 | int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); |
||
4919 | if (pixel_multiplier > 1) { |
||
4920 | dpll |= (pixel_multiplier - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; |
||
4921 | } |
||
4922 | dpll |= DPLL_DVO_HIGH_SPEED; |
||
4923 | } |
||
3031 | serge | 4924 | if (is_dp && !is_cpu_edp) |
2327 | Serge | 4925 | dpll |= DPLL_DVO_HIGH_SPEED; |
4926 | |||
4927 | /* compute bitmask from p1 value */ |
||
4928 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
||
4929 | /* also FPA1 */ |
||
4930 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; |
||
4931 | |||
4932 | switch (clock.p2) { |
||
4933 | case 5: |
||
4934 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; |
||
4935 | break; |
||
4936 | case 7: |
||
4937 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; |
||
4938 | break; |
||
4939 | case 10: |
||
4940 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; |
||
4941 | break; |
||
4942 | case 14: |
||
4943 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; |
||
4944 | break; |
||
4945 | } |
||
4946 | |||
4947 | if (is_sdvo && is_tv) |
||
4948 | dpll |= PLL_REF_INPUT_TVCLKINBC; |
||
4949 | else if (is_tv) |
||
4950 | /* XXX: just matching BIOS for now */ |
||
4951 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ |
||
4952 | dpll |= 3; |
||
4953 | else if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
||
4954 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
||
4955 | else |
||
4956 | dpll |= PLL_REF_INPUT_DREFCLK; |
||
4957 | |||
2342 | Serge | 4958 | DRM_DEBUG_KMS("Mode for pipe %d:\n", pipe); |
2327 | Serge | 4959 | drm_mode_debug_printmodeline(mode); |
4960 | |||
3031 | serge | 4961 | /* CPU eDP is the only output that doesn't need a PCH PLL of its own on |
4962 | * pre-Haswell/LPT generation */ |
||
4963 | if (HAS_PCH_LPT(dev)) { |
||
4964 | DRM_DEBUG_KMS("LPT detected: no PLL for pipe %d necessary\n", |
||
4965 | pipe); |
||
4966 | } else if (!is_cpu_edp) { |
||
4967 | struct intel_pch_pll *pll; |
||
2327 | Serge | 4968 | |
3031 | serge | 4969 | pll = intel_get_pch_pll(intel_crtc, dpll, fp); |
4970 | if (pll == NULL) { |
||
4971 | DRM_DEBUG_DRIVER("failed to find PLL for pipe %d\n", |
||
4972 | pipe); |
||
2342 | Serge | 4973 | return -EINVAL; |
2327 | Serge | 4974 | } |
3031 | serge | 4975 | } else |
4976 | intel_put_pch_pll(intel_crtc); |
||
2327 | Serge | 4977 | |
4978 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. |
||
4979 | * This is an exception to the general rule that mode_set doesn't turn |
||
4980 | * things on. |
||
4981 | */ |
||
4982 | if (is_lvds) { |
||
4983 | temp = I915_READ(PCH_LVDS); |
||
4984 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; |
||
2342 | Serge | 4985 | if (HAS_PCH_CPT(dev)) { |
4986 | temp &= ~PORT_TRANS_SEL_MASK; |
||
4987 | temp |= PORT_TRANS_SEL_CPT(pipe); |
||
4988 | } else { |
||
4989 | if (pipe == 1) |
||
2327 | Serge | 4990 | temp |= LVDS_PIPEB_SELECT; |
4991 | else |
||
4992 | temp &= ~LVDS_PIPEB_SELECT; |
||
4993 | } |
||
2342 | Serge | 4994 | |
2327 | Serge | 4995 | /* set the corresponsding LVDS_BORDER bit */ |
4996 | temp |= dev_priv->lvds_border_bits; |
||
4997 | /* Set the B0-B3 data pairs corresponding to whether we're going to |
||
4998 | * set the DPLLs for dual-channel mode or not. |
||
4999 | */ |
||
5000 | if (clock.p2 == 7) |
||
5001 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; |
||
5002 | else |
||
5003 | temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); |
||
5004 | |||
5005 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) |
||
5006 | * appropriately here, but we need to look more thoroughly into how |
||
5007 | * panels behave in the two modes. |
||
5008 | */ |
||
3031 | serge | 5009 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); |
2327 | Serge | 5010 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) |
3031 | serge | 5011 | temp |= LVDS_HSYNC_POLARITY; |
2327 | Serge | 5012 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) |
3031 | serge | 5013 | temp |= LVDS_VSYNC_POLARITY; |
2327 | Serge | 5014 | I915_WRITE(PCH_LVDS, temp); |
5015 | } |
||
5016 | |||
3031 | serge | 5017 | if (is_dp && !is_cpu_edp) { |
2327 | Serge | 5018 | intel_dp_set_m_n(crtc, mode, adjusted_mode); |
5019 | } else { |
||
5020 | /* For non-DP output, clear any trans DP clock recovery setting.*/ |
||
5021 | I915_WRITE(TRANSDATA_M1(pipe), 0); |
||
5022 | I915_WRITE(TRANSDATA_N1(pipe), 0); |
||
5023 | I915_WRITE(TRANSDPLINK_M1(pipe), 0); |
||
5024 | I915_WRITE(TRANSDPLINK_N1(pipe), 0); |
||
5025 | } |
||
5026 | |||
3031 | serge | 5027 | if (intel_crtc->pch_pll) { |
5028 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); |
||
2327 | Serge | 5029 | |
5030 | /* Wait for the clocks to stabilize. */ |
||
3031 | serge | 5031 | POSTING_READ(intel_crtc->pch_pll->pll_reg); |
2327 | Serge | 5032 | udelay(150); |
5033 | |||
5034 | /* The pixel multiplier can only be updated once the |
||
5035 | * DPLL is enabled and the clocks are stable. |
||
5036 | * |
||
5037 | * So write it again. |
||
5038 | */ |
||
3031 | serge | 5039 | I915_WRITE(intel_crtc->pch_pll->pll_reg, dpll); |
2327 | Serge | 5040 | } |
5041 | |||
5042 | intel_crtc->lowfreq_avail = false; |
||
3031 | serge | 5043 | if (intel_crtc->pch_pll) { |
2327 | Serge | 5044 | if (is_lvds && has_reduced_clock && i915_powersave) { |
3031 | serge | 5045 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp2); |
2327 | Serge | 5046 | intel_crtc->lowfreq_avail = true; |
5047 | } else { |
||
3031 | serge | 5048 | I915_WRITE(intel_crtc->pch_pll->fp1_reg, fp); |
2327 | Serge | 5049 | } |
2342 | Serge | 5050 | } |
2327 | Serge | 5051 | |
5052 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { |
||
5053 | /* the chip adds 2 halflines automatically */ |
||
5054 | adjusted_mode->crtc_vtotal -= 1; |
||
5055 | adjusted_mode->crtc_vblank_end -= 1; |
||
3031 | serge | 5056 | I915_WRITE(VSYNCSHIFT(pipe), |
5057 | adjusted_mode->crtc_hsync_start |
||
5058 | - adjusted_mode->crtc_htotal/2); |
||
5059 | } else { |
||
5060 | I915_WRITE(VSYNCSHIFT(pipe), 0); |
||
5061 | } |
||
2327 | Serge | 5062 | |
5063 | I915_WRITE(HTOTAL(pipe), |
||
5064 | (adjusted_mode->crtc_hdisplay - 1) | |
||
5065 | ((adjusted_mode->crtc_htotal - 1) << 16)); |
||
5066 | I915_WRITE(HBLANK(pipe), |
||
5067 | (adjusted_mode->crtc_hblank_start - 1) | |
||
5068 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); |
||
5069 | I915_WRITE(HSYNC(pipe), |
||
5070 | (adjusted_mode->crtc_hsync_start - 1) | |
||
5071 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); |
||
5072 | |||
5073 | I915_WRITE(VTOTAL(pipe), |
||
5074 | (adjusted_mode->crtc_vdisplay - 1) | |
||
5075 | ((adjusted_mode->crtc_vtotal - 1) << 16)); |
||
5076 | I915_WRITE(VBLANK(pipe), |
||
5077 | (adjusted_mode->crtc_vblank_start - 1) | |
||
5078 | ((adjusted_mode->crtc_vblank_end - 1) << 16)); |
||
5079 | I915_WRITE(VSYNC(pipe), |
||
5080 | (adjusted_mode->crtc_vsync_start - 1) | |
||
5081 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); |
||
5082 | |||
5083 | /* pipesrc controls the size that is scaled from, which should |
||
5084 | * always be the user's requested size. |
||
5085 | */ |
||
5086 | I915_WRITE(PIPESRC(pipe), |
||
5087 | ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); |
||
5088 | |||
5089 | I915_WRITE(PIPE_DATA_M1(pipe), TU_SIZE(m_n.tu) | m_n.gmch_m); |
||
5090 | I915_WRITE(PIPE_DATA_N1(pipe), m_n.gmch_n); |
||
5091 | I915_WRITE(PIPE_LINK_M1(pipe), m_n.link_m); |
||
5092 | I915_WRITE(PIPE_LINK_N1(pipe), m_n.link_n); |
||
5093 | |||
3031 | serge | 5094 | if (is_cpu_edp) |
2327 | Serge | 5095 | ironlake_set_pll_edp(crtc, adjusted_mode->clock); |
5096 | |||
3031 | serge | 5097 | ironlake_set_pipeconf(crtc, adjusted_mode, dither); |
2327 | Serge | 5098 | |
5099 | intel_wait_for_vblank(dev, pipe); |
||
5100 | |||
3031 | serge | 5101 | /* Set up the display plane register */ |
5102 | I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE); |
||
2327 | Serge | 5103 | POSTING_READ(DSPCNTR(plane)); |
5104 | |||
3031 | serge | 5105 | ret = intel_pipe_set_base(crtc, x, y, fb); |
2327 | Serge | 5106 | |
5107 | intel_update_watermarks(dev); |
||
5108 | |||
3031 | serge | 5109 | intel_update_linetime_watermarks(dev, pipe, adjusted_mode); |
2336 | Serge | 5110 | |
2327 | Serge | 5111 | return ret; |
5112 | } |
||
5113 | |||
2330 | Serge | 5114 | static int intel_crtc_mode_set(struct drm_crtc *crtc, |
5115 | struct drm_display_mode *mode, |
||
5116 | struct drm_display_mode *adjusted_mode, |
||
5117 | int x, int y, |
||
3031 | serge | 5118 | struct drm_framebuffer *fb) |
2330 | Serge | 5119 | { |
5120 | struct drm_device *dev = crtc->dev; |
||
5121 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
5122 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
5123 | int pipe = intel_crtc->pipe; |
||
5124 | int ret; |
||
2327 | Serge | 5125 | |
3031 | serge | 5126 | drm_vblank_pre_modeset(dev, pipe); |
2327 | Serge | 5127 | |
2330 | Serge | 5128 | ret = dev_priv->display.crtc_mode_set(crtc, mode, adjusted_mode, |
3031 | serge | 5129 | x, y, fb); |
5130 | drm_vblank_post_modeset(dev, pipe); |
||
2327 | Serge | 5131 | |
2330 | Serge | 5132 | return ret; |
5133 | } |
||
2327 | Serge | 5134 | |
2342 | Serge | 5135 | static bool intel_eld_uptodate(struct drm_connector *connector, |
5136 | int reg_eldv, uint32_t bits_eldv, |
||
5137 | int reg_elda, uint32_t bits_elda, |
||
5138 | int reg_edid) |
||
5139 | { |
||
5140 | struct drm_i915_private *dev_priv = connector->dev->dev_private; |
||
5141 | uint8_t *eld = connector->eld; |
||
5142 | uint32_t i; |
||
5143 | |||
5144 | i = I915_READ(reg_eldv); |
||
5145 | i &= bits_eldv; |
||
5146 | |||
5147 | if (!eld[0]) |
||
5148 | return !i; |
||
5149 | |||
5150 | if (!i) |
||
5151 | return false; |
||
5152 | |||
5153 | i = I915_READ(reg_elda); |
||
5154 | i &= ~bits_elda; |
||
5155 | I915_WRITE(reg_elda, i); |
||
5156 | |||
5157 | for (i = 0; i < eld[2]; i++) |
||
5158 | if (I915_READ(reg_edid) != *((uint32_t *)eld + i)) |
||
5159 | return false; |
||
5160 | |||
5161 | return true; |
||
5162 | } |
||
5163 | |||
5164 | static void g4x_write_eld(struct drm_connector *connector, |
||
5165 | struct drm_crtc *crtc) |
||
5166 | { |
||
5167 | struct drm_i915_private *dev_priv = connector->dev->dev_private; |
||
5168 | uint8_t *eld = connector->eld; |
||
5169 | uint32_t eldv; |
||
5170 | uint32_t len; |
||
5171 | uint32_t i; |
||
5172 | |||
5173 | i = I915_READ(G4X_AUD_VID_DID); |
||
5174 | |||
5175 | if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL) |
||
5176 | eldv = G4X_ELDV_DEVCL_DEVBLC; |
||
5177 | else |
||
5178 | eldv = G4X_ELDV_DEVCTG; |
||
5179 | |||
5180 | if (intel_eld_uptodate(connector, |
||
5181 | G4X_AUD_CNTL_ST, eldv, |
||
5182 | G4X_AUD_CNTL_ST, G4X_ELD_ADDR, |
||
5183 | G4X_HDMIW_HDMIEDID)) |
||
5184 | return; |
||
5185 | |||
5186 | i = I915_READ(G4X_AUD_CNTL_ST); |
||
5187 | i &= ~(eldv | G4X_ELD_ADDR); |
||
5188 | len = (i >> 9) & 0x1f; /* ELD buffer size */ |
||
5189 | I915_WRITE(G4X_AUD_CNTL_ST, i); |
||
5190 | |||
5191 | if (!eld[0]) |
||
5192 | return; |
||
5193 | |||
5194 | len = min_t(uint8_t, eld[2], len); |
||
5195 | DRM_DEBUG_DRIVER("ELD size %d\n", len); |
||
5196 | for (i = 0; i < len; i++) |
||
5197 | I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i)); |
||
5198 | |||
5199 | i = I915_READ(G4X_AUD_CNTL_ST); |
||
5200 | i |= eldv; |
||
5201 | I915_WRITE(G4X_AUD_CNTL_ST, i); |
||
5202 | } |
||
5203 | |||
3031 | serge | 5204 | static void haswell_write_eld(struct drm_connector *connector, |
5205 | struct drm_crtc *crtc) |
||
5206 | { |
||
5207 | struct drm_i915_private *dev_priv = connector->dev->dev_private; |
||
5208 | uint8_t *eld = connector->eld; |
||
5209 | struct drm_device *dev = crtc->dev; |
||
5210 | uint32_t eldv; |
||
5211 | uint32_t i; |
||
5212 | int len; |
||
5213 | int pipe = to_intel_crtc(crtc)->pipe; |
||
5214 | int tmp; |
||
5215 | |||
5216 | int hdmiw_hdmiedid = HSW_AUD_EDID_DATA(pipe); |
||
5217 | int aud_cntl_st = HSW_AUD_DIP_ELD_CTRL(pipe); |
||
5218 | int aud_config = HSW_AUD_CFG(pipe); |
||
5219 | int aud_cntrl_st2 = HSW_AUD_PIN_ELD_CP_VLD; |
||
5220 | |||
5221 | |||
5222 | DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n"); |
||
5223 | |||
5224 | /* Audio output enable */ |
||
5225 | DRM_DEBUG_DRIVER("HDMI audio: enable codec\n"); |
||
5226 | tmp = I915_READ(aud_cntrl_st2); |
||
5227 | tmp |= (AUDIO_OUTPUT_ENABLE_A << (pipe * 4)); |
||
5228 | I915_WRITE(aud_cntrl_st2, tmp); |
||
5229 | |||
5230 | /* Wait for 1 vertical blank */ |
||
5231 | intel_wait_for_vblank(dev, pipe); |
||
5232 | |||
5233 | /* Set ELD valid state */ |
||
5234 | tmp = I915_READ(aud_cntrl_st2); |
||
5235 | DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%8x\n", tmp); |
||
5236 | tmp |= (AUDIO_ELD_VALID_A << (pipe * 4)); |
||
5237 | I915_WRITE(aud_cntrl_st2, tmp); |
||
5238 | tmp = I915_READ(aud_cntrl_st2); |
||
5239 | DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%8x\n", tmp); |
||
5240 | |||
5241 | /* Enable HDMI mode */ |
||
5242 | tmp = I915_READ(aud_config); |
||
5243 | DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%8x\n", tmp); |
||
5244 | /* clear N_programing_enable and N_value_index */ |
||
5245 | tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE); |
||
5246 | I915_WRITE(aud_config, tmp); |
||
5247 | |||
5248 | DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe)); |
||
5249 | |||
5250 | eldv = AUDIO_ELD_VALID_A << (pipe * 4); |
||
5251 | |||
5252 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
||
5253 | DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n"); |
||
5254 | eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */ |
||
5255 | I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */ |
||
5256 | } else |
||
5257 | I915_WRITE(aud_config, 0); |
||
5258 | |||
5259 | if (intel_eld_uptodate(connector, |
||
5260 | aud_cntrl_st2, eldv, |
||
5261 | aud_cntl_st, IBX_ELD_ADDRESS, |
||
5262 | hdmiw_hdmiedid)) |
||
5263 | return; |
||
5264 | |||
5265 | i = I915_READ(aud_cntrl_st2); |
||
5266 | i &= ~eldv; |
||
5267 | I915_WRITE(aud_cntrl_st2, i); |
||
5268 | |||
5269 | if (!eld[0]) |
||
5270 | return; |
||
5271 | |||
5272 | i = I915_READ(aud_cntl_st); |
||
5273 | i &= ~IBX_ELD_ADDRESS; |
||
5274 | I915_WRITE(aud_cntl_st, i); |
||
5275 | i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */ |
||
5276 | DRM_DEBUG_DRIVER("port num:%d\n", i); |
||
5277 | |||
5278 | len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */ |
||
5279 | DRM_DEBUG_DRIVER("ELD size %d\n", len); |
||
5280 | for (i = 0; i < len; i++) |
||
5281 | I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i)); |
||
5282 | |||
5283 | i = I915_READ(aud_cntrl_st2); |
||
5284 | i |= eldv; |
||
5285 | I915_WRITE(aud_cntrl_st2, i); |
||
5286 | |||
5287 | } |
||
5288 | |||
2342 | Serge | 5289 | static void ironlake_write_eld(struct drm_connector *connector, |
5290 | struct drm_crtc *crtc) |
||
5291 | { |
||
5292 | struct drm_i915_private *dev_priv = connector->dev->dev_private; |
||
5293 | uint8_t *eld = connector->eld; |
||
5294 | uint32_t eldv; |
||
5295 | uint32_t i; |
||
5296 | int len; |
||
5297 | int hdmiw_hdmiedid; |
||
3031 | serge | 5298 | int aud_config; |
2342 | Serge | 5299 | int aud_cntl_st; |
5300 | int aud_cntrl_st2; |
||
3031 | serge | 5301 | int pipe = to_intel_crtc(crtc)->pipe; |
2342 | Serge | 5302 | |
5303 | if (HAS_PCH_IBX(connector->dev)) { |
||
3031 | serge | 5304 | hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe); |
5305 | aud_config = IBX_AUD_CFG(pipe); |
||
5306 | aud_cntl_st = IBX_AUD_CNTL_ST(pipe); |
||
2342 | Serge | 5307 | aud_cntrl_st2 = IBX_AUD_CNTL_ST2; |
5308 | } else { |
||
3031 | serge | 5309 | hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe); |
5310 | aud_config = CPT_AUD_CFG(pipe); |
||
5311 | aud_cntl_st = CPT_AUD_CNTL_ST(pipe); |
||
2342 | Serge | 5312 | aud_cntrl_st2 = CPT_AUD_CNTRL_ST2; |
5313 | } |
||
5314 | |||
3031 | serge | 5315 | DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe)); |
2342 | Serge | 5316 | |
5317 | i = I915_READ(aud_cntl_st); |
||
3031 | serge | 5318 | i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */ |
2342 | Serge | 5319 | if (!i) { |
5320 | DRM_DEBUG_DRIVER("Audio directed to unknown port\n"); |
||
5321 | /* operate blindly on all ports */ |
||
5322 | eldv = IBX_ELD_VALIDB; |
||
5323 | eldv |= IBX_ELD_VALIDB << 4; |
||
5324 | eldv |= IBX_ELD_VALIDB << 8; |
||
5325 | } else { |
||
5326 | DRM_DEBUG_DRIVER("ELD on port %c\n", 'A' + i); |
||
5327 | eldv = IBX_ELD_VALIDB << ((i - 1) * 4); |
||
5328 | } |
||
5329 | |||
5330 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
||
5331 | DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n"); |
||
5332 | eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */ |
||
3031 | serge | 5333 | I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */ |
5334 | } else |
||
5335 | I915_WRITE(aud_config, 0); |
||
2342 | Serge | 5336 | |
5337 | if (intel_eld_uptodate(connector, |
||
5338 | aud_cntrl_st2, eldv, |
||
5339 | aud_cntl_st, IBX_ELD_ADDRESS, |
||
5340 | hdmiw_hdmiedid)) |
||
5341 | return; |
||
5342 | |||
5343 | i = I915_READ(aud_cntrl_st2); |
||
5344 | i &= ~eldv; |
||
5345 | I915_WRITE(aud_cntrl_st2, i); |
||
5346 | |||
5347 | if (!eld[0]) |
||
5348 | return; |
||
5349 | |||
5350 | i = I915_READ(aud_cntl_st); |
||
5351 | i &= ~IBX_ELD_ADDRESS; |
||
5352 | I915_WRITE(aud_cntl_st, i); |
||
5353 | |||
5354 | len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */ |
||
5355 | DRM_DEBUG_DRIVER("ELD size %d\n", len); |
||
5356 | for (i = 0; i < len; i++) |
||
5357 | I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i)); |
||
5358 | |||
5359 | i = I915_READ(aud_cntrl_st2); |
||
5360 | i |= eldv; |
||
5361 | I915_WRITE(aud_cntrl_st2, i); |
||
5362 | } |
||
5363 | |||
5364 | void intel_write_eld(struct drm_encoder *encoder, |
||
5365 | struct drm_display_mode *mode) |
||
5366 | { |
||
5367 | struct drm_crtc *crtc = encoder->crtc; |
||
5368 | struct drm_connector *connector; |
||
5369 | struct drm_device *dev = encoder->dev; |
||
5370 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
5371 | |||
5372 | connector = drm_select_eld(encoder, mode); |
||
5373 | if (!connector) |
||
5374 | return; |
||
5375 | |||
5376 | DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
||
5377 | connector->base.id, |
||
5378 | drm_get_connector_name(connector), |
||
5379 | connector->encoder->base.id, |
||
5380 | drm_get_encoder_name(connector->encoder)); |
||
5381 | |||
5382 | connector->eld[6] = drm_av_sync_delay(connector, mode) / 2; |
||
5383 | |||
5384 | if (dev_priv->display.write_eld) |
||
5385 | dev_priv->display.write_eld(connector, crtc); |
||
5386 | } |
||
5387 | |||
2327 | Serge | 5388 | /** Loads the palette/gamma unit for the CRTC with the prepared values */ |
5389 | void intel_crtc_load_lut(struct drm_crtc *crtc) |
||
5390 | { |
||
5391 | struct drm_device *dev = crtc->dev; |
||
5392 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
5393 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
5394 | int palreg = PALETTE(intel_crtc->pipe); |
||
5395 | int i; |
||
5396 | |||
5397 | /* The clocks have to be on to load the palette. */ |
||
3031 | serge | 5398 | if (!crtc->enabled || !intel_crtc->active) |
2327 | Serge | 5399 | return; |
5400 | |||
5401 | /* use legacy palette for Ironlake */ |
||
5402 | if (HAS_PCH_SPLIT(dev)) |
||
5403 | palreg = LGC_PALETTE(intel_crtc->pipe); |
||
5404 | |||
5405 | for (i = 0; i < 256; i++) { |
||
5406 | I915_WRITE(palreg + 4 * i, |
||
5407 | (intel_crtc->lut_r[i] << 16) | |
||
5408 | (intel_crtc->lut_g[i] << 8) | |
||
5409 | intel_crtc->lut_b[i]); |
||
5410 | } |
||
5411 | } |
||
5412 | |||
3031 | serge | 5413 | #if 0 |
5414 | static void i845_update_cursor(struct drm_crtc *crtc, u32 base) |
||
5415 | { |
||
5416 | struct drm_device *dev = crtc->dev; |
||
5417 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
5418 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
5419 | bool visible = base != 0; |
||
5420 | u32 cntl; |
||
2327 | Serge | 5421 | |
3031 | serge | 5422 | if (intel_crtc->cursor_visible == visible) |
5423 | return; |
||
2327 | Serge | 5424 | |
3031 | serge | 5425 | cntl = I915_READ(_CURACNTR); |
5426 | if (visible) { |
||
5427 | /* On these chipsets we can only modify the base whilst |
||
5428 | * the cursor is disabled. |
||
5429 | */ |
||
5430 | I915_WRITE(_CURABASE, base); |
||
2327 | Serge | 5431 | |
3031 | serge | 5432 | cntl &= ~(CURSOR_FORMAT_MASK); |
5433 | /* XXX width must be 64, stride 256 => 0x00 << 28 */ |
||
5434 | cntl |= CURSOR_ENABLE | |
||
5435 | CURSOR_GAMMA_ENABLE | |
||
5436 | CURSOR_FORMAT_ARGB; |
||
5437 | } else |
||
5438 | cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE); |
||
5439 | I915_WRITE(_CURACNTR, cntl); |
||
2327 | Serge | 5440 | |
3031 | serge | 5441 | intel_crtc->cursor_visible = visible; |
5442 | } |
||
2327 | Serge | 5443 | |
3031 | serge | 5444 | static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base) |
5445 | { |
||
5446 | struct drm_device *dev = crtc->dev; |
||
5447 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
5448 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
5449 | int pipe = intel_crtc->pipe; |
||
5450 | bool visible = base != 0; |
||
2327 | Serge | 5451 | |
3031 | serge | 5452 | if (intel_crtc->cursor_visible != visible) { |
5453 | uint32_t cntl = I915_READ(CURCNTR(pipe)); |
||
5454 | if (base) { |
||
5455 | cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT); |
||
5456 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; |
||
5457 | cntl |= pipe << 28; /* Connect to correct pipe */ |
||
5458 | } else { |
||
5459 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); |
||
5460 | cntl |= CURSOR_MODE_DISABLE; |
||
5461 | } |
||
5462 | I915_WRITE(CURCNTR(pipe), cntl); |
||
2327 | Serge | 5463 | |
3031 | serge | 5464 | intel_crtc->cursor_visible = visible; |
5465 | } |
||
5466 | /* and commit changes on next vblank */ |
||
5467 | I915_WRITE(CURBASE(pipe), base); |
||
5468 | } |
||
2327 | Serge | 5469 | |
3031 | serge | 5470 | static void ivb_update_cursor(struct drm_crtc *crtc, u32 base) |
5471 | { |
||
5472 | struct drm_device *dev = crtc->dev; |
||
5473 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
5474 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
5475 | int pipe = intel_crtc->pipe; |
||
5476 | bool visible = base != 0; |
||
2327 | Serge | 5477 | |
3031 | serge | 5478 | if (intel_crtc->cursor_visible != visible) { |
5479 | uint32_t cntl = I915_READ(CURCNTR_IVB(pipe)); |
||
5480 | if (base) { |
||
5481 | cntl &= ~CURSOR_MODE; |
||
5482 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; |
||
5483 | } else { |
||
5484 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); |
||
5485 | cntl |= CURSOR_MODE_DISABLE; |
||
5486 | } |
||
5487 | I915_WRITE(CURCNTR_IVB(pipe), cntl); |
||
2327 | Serge | 5488 | |
3031 | serge | 5489 | intel_crtc->cursor_visible = visible; |
5490 | } |
||
5491 | /* and commit changes on next vblank */ |
||
5492 | I915_WRITE(CURBASE_IVB(pipe), base); |
||
5493 | } |
||
2327 | Serge | 5494 | |
3031 | serge | 5495 | /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */ |
5496 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, |
||
5497 | bool on) |
||
5498 | { |
||
5499 | struct drm_device *dev = crtc->dev; |
||
5500 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
5501 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
5502 | int pipe = intel_crtc->pipe; |
||
5503 | int x = intel_crtc->cursor_x; |
||
5504 | int y = intel_crtc->cursor_y; |
||
5505 | u32 base, pos; |
||
5506 | bool visible; |
||
2327 | Serge | 5507 | |
3031 | serge | 5508 | pos = 0; |
2327 | Serge | 5509 | |
3031 | serge | 5510 | if (on && crtc->enabled && crtc->fb) { |
5511 | base = intel_crtc->cursor_addr; |
||
5512 | if (x > (int) crtc->fb->width) |
||
5513 | base = 0; |
||
2327 | Serge | 5514 | |
3031 | serge | 5515 | if (y > (int) crtc->fb->height) |
5516 | base = 0; |
||
5517 | } else |
||
5518 | base = 0; |
||
2327 | Serge | 5519 | |
3031 | serge | 5520 | if (x < 0) { |
5521 | if (x + intel_crtc->cursor_width < 0) |
||
5522 | base = 0; |
||
2327 | Serge | 5523 | |
3031 | serge | 5524 | pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT; |
5525 | x = -x; |
||
5526 | } |
||
5527 | pos |= x << CURSOR_X_SHIFT; |
||
2327 | Serge | 5528 | |
3031 | serge | 5529 | if (y < 0) { |
5530 | if (y + intel_crtc->cursor_height < 0) |
||
5531 | base = 0; |
||
2327 | Serge | 5532 | |
3031 | serge | 5533 | pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT; |
5534 | y = -y; |
||
5535 | } |
||
5536 | pos |= y << CURSOR_Y_SHIFT; |
||
2327 | Serge | 5537 | |
3031 | serge | 5538 | visible = base != 0; |
5539 | if (!visible && !intel_crtc->cursor_visible) |
||
5540 | return; |
||
2327 | Serge | 5541 | |
3031 | serge | 5542 | if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) { |
5543 | I915_WRITE(CURPOS_IVB(pipe), pos); |
||
5544 | ivb_update_cursor(crtc, base); |
||
5545 | } else { |
||
5546 | I915_WRITE(CURPOS(pipe), pos); |
||
5547 | if (IS_845G(dev) || IS_I865G(dev)) |
||
5548 | i845_update_cursor(crtc, base); |
||
5549 | else |
||
5550 | i9xx_update_cursor(crtc, base); |
||
5551 | } |
||
5552 | } |
||
2327 | Serge | 5553 | |
3031 | serge | 5554 | static int intel_crtc_cursor_set(struct drm_crtc *crtc, |
5555 | struct drm_file *file, |
||
5556 | uint32_t handle, |
||
5557 | uint32_t width, uint32_t height) |
||
5558 | { |
||
5559 | struct drm_device *dev = crtc->dev; |
||
5560 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
5561 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
5562 | struct drm_i915_gem_object *obj; |
||
5563 | uint32_t addr; |
||
5564 | int ret; |
||
2327 | Serge | 5565 | |
3031 | serge | 5566 | /* if we want to turn off the cursor ignore width and height */ |
5567 | if (!handle) { |
||
5568 | DRM_DEBUG_KMS("cursor off\n"); |
||
5569 | addr = 0; |
||
5570 | obj = NULL; |
||
5571 | mutex_lock(&dev->struct_mutex); |
||
5572 | goto finish; |
||
5573 | } |
||
2327 | Serge | 5574 | |
3031 | serge | 5575 | /* Currently we only support 64x64 cursors */ |
5576 | if (width != 64 || height != 64) { |
||
5577 | DRM_ERROR("we currently only support 64x64 cursors\n"); |
||
5578 | return -EINVAL; |
||
5579 | } |
||
2327 | Serge | 5580 | |
3031 | serge | 5581 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle)); |
5582 | if (&obj->base == NULL) |
||
5583 | return -ENOENT; |
||
2327 | Serge | 5584 | |
3031 | serge | 5585 | if (obj->base.size < width * height * 4) { |
5586 | DRM_ERROR("buffer is to small\n"); |
||
5587 | ret = -ENOMEM; |
||
5588 | goto fail; |
||
5589 | } |
||
2327 | Serge | 5590 | |
3031 | serge | 5591 | /* we only need to pin inside GTT if cursor is non-phy */ |
5592 | mutex_lock(&dev->struct_mutex); |
||
5593 | if (!dev_priv->info->cursor_needs_physical) { |
||
5594 | if (obj->tiling_mode) { |
||
5595 | DRM_ERROR("cursor cannot be tiled\n"); |
||
5596 | ret = -EINVAL; |
||
5597 | goto fail_locked; |
||
5598 | } |
||
2327 | Serge | 5599 | |
3031 | serge | 5600 | ret = i915_gem_object_pin_to_display_plane(obj, 0, NULL); |
5601 | if (ret) { |
||
5602 | DRM_ERROR("failed to move cursor bo into the GTT\n"); |
||
5603 | goto fail_locked; |
||
5604 | } |
||
2327 | Serge | 5605 | |
3031 | serge | 5606 | ret = i915_gem_object_put_fence(obj); |
5607 | if (ret) { |
||
5608 | DRM_ERROR("failed to release fence for cursor"); |
||
5609 | goto fail_unpin; |
||
5610 | } |
||
2327 | Serge | 5611 | |
3031 | serge | 5612 | addr = obj->gtt_offset; |
5613 | } else { |
||
5614 | int align = IS_I830(dev) ? 16 * 1024 : 256; |
||
5615 | ret = i915_gem_attach_phys_object(dev, obj, |
||
5616 | (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1, |
||
5617 | align); |
||
5618 | if (ret) { |
||
5619 | DRM_ERROR("failed to attach phys object\n"); |
||
5620 | goto fail_locked; |
||
5621 | } |
||
5622 | addr = obj->phys_obj->handle->busaddr; |
||
5623 | } |
||
2327 | Serge | 5624 | |
3031 | serge | 5625 | if (IS_GEN2(dev)) |
5626 | I915_WRITE(CURSIZE, (height << 12) | width); |
||
2327 | Serge | 5627 | |
3031 | serge | 5628 | finish: |
5629 | if (intel_crtc->cursor_bo) { |
||
5630 | if (dev_priv->info->cursor_needs_physical) { |
||
5631 | if (intel_crtc->cursor_bo != obj) |
||
5632 | i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo); |
||
5633 | } else |
||
5634 | i915_gem_object_unpin(intel_crtc->cursor_bo); |
||
5635 | drm_gem_object_unreference(&intel_crtc->cursor_bo->base); |
||
5636 | } |
||
2327 | Serge | 5637 | |
3031 | serge | 5638 | mutex_unlock(&dev->struct_mutex); |
2327 | Serge | 5639 | |
3031 | serge | 5640 | intel_crtc->cursor_addr = addr; |
5641 | intel_crtc->cursor_bo = obj; |
||
5642 | intel_crtc->cursor_width = width; |
||
5643 | intel_crtc->cursor_height = height; |
||
2327 | Serge | 5644 | |
3031 | serge | 5645 | // intel_crtc_update_cursor(crtc, true); |
2327 | Serge | 5646 | |
3031 | serge | 5647 | return 0; |
5648 | fail_unpin: |
||
5649 | i915_gem_object_unpin(obj); |
||
5650 | fail_locked: |
||
5651 | mutex_unlock(&dev->struct_mutex); |
||
5652 | fail: |
||
5653 | drm_gem_object_unreference_unlocked(&obj->base); |
||
5654 | return ret; |
||
5655 | } |
||
2327 | Serge | 5656 | |
3031 | serge | 5657 | static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) |
5658 | { |
||
5659 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
5660 | |||
5661 | intel_crtc->cursor_x = x; |
||
5662 | intel_crtc->cursor_y = y; |
||
5663 | |||
5664 | // intel_crtc_update_cursor(crtc, true); |
||
5665 | |||
5666 | return 0; |
||
5667 | } |
||
5668 | #endif |
||
5669 | |||
2332 | Serge | 5670 | /** Sets the color ramps on behalf of RandR */ |
5671 | void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, |
||
5672 | u16 blue, int regno) |
||
5673 | { |
||
5674 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2327 | Serge | 5675 | |
2332 | Serge | 5676 | intel_crtc->lut_r[regno] = red >> 8; |
5677 | intel_crtc->lut_g[regno] = green >> 8; |
||
5678 | intel_crtc->lut_b[regno] = blue >> 8; |
||
5679 | } |
||
2327 | Serge | 5680 | |
2332 | Serge | 5681 | void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, |
5682 | u16 *blue, int regno) |
||
5683 | { |
||
5684 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2327 | Serge | 5685 | |
2332 | Serge | 5686 | *red = intel_crtc->lut_r[regno] << 8; |
5687 | *green = intel_crtc->lut_g[regno] << 8; |
||
5688 | *blue = intel_crtc->lut_b[regno] << 8; |
||
5689 | } |
||
2327 | Serge | 5690 | |
2330 | Serge | 5691 | static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, |
5692 | u16 *blue, uint32_t start, uint32_t size) |
||
5693 | { |
||
5694 | int end = (start + size > 256) ? 256 : start + size, i; |
||
5695 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2327 | Serge | 5696 | |
2330 | Serge | 5697 | for (i = start; i < end; i++) { |
5698 | intel_crtc->lut_r[i] = red[i] >> 8; |
||
5699 | intel_crtc->lut_g[i] = green[i] >> 8; |
||
5700 | intel_crtc->lut_b[i] = blue[i] >> 8; |
||
5701 | } |
||
2327 | Serge | 5702 | |
2330 | Serge | 5703 | intel_crtc_load_lut(crtc); |
5704 | } |
||
2327 | Serge | 5705 | |
2330 | Serge | 5706 | /** |
5707 | * Get a pipe with a simple mode set on it for doing load-based monitor |
||
5708 | * detection. |
||
5709 | * |
||
5710 | * It will be up to the load-detect code to adjust the pipe as appropriate for |
||
5711 | * its requirements. The pipe will be connected to no other encoders. |
||
5712 | * |
||
5713 | * Currently this code will only succeed if there is a pipe with no encoders |
||
5714 | * configured for it. In the future, it could choose to temporarily disable |
||
5715 | * some outputs to free up a pipe for its use. |
||
5716 | * |
||
5717 | * \return crtc, or NULL if no pipes are available. |
||
5718 | */ |
||
2327 | Serge | 5719 | |
2330 | Serge | 5720 | /* VESA 640x480x72Hz mode to set on the pipe */ |
5721 | static struct drm_display_mode load_detect_mode = { |
||
5722 | DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, |
||
5723 | 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), |
||
5724 | }; |
||
2327 | Serge | 5725 | |
3031 | serge | 5726 | static struct drm_framebuffer * |
5727 | intel_framebuffer_create(struct drm_device *dev, |
||
5728 | struct drm_mode_fb_cmd2 *mode_cmd, |
||
5729 | struct drm_i915_gem_object *obj) |
||
5730 | { |
||
5731 | struct intel_framebuffer *intel_fb; |
||
5732 | int ret; |
||
2327 | Serge | 5733 | |
3031 | serge | 5734 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); |
5735 | if (!intel_fb) { |
||
5736 | drm_gem_object_unreference_unlocked(&obj->base); |
||
5737 | return ERR_PTR(-ENOMEM); |
||
5738 | } |
||
2327 | Serge | 5739 | |
3031 | serge | 5740 | ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj); |
5741 | if (ret) { |
||
5742 | drm_gem_object_unreference_unlocked(&obj->base); |
||
5743 | kfree(intel_fb); |
||
5744 | return ERR_PTR(ret); |
||
5745 | } |
||
2327 | Serge | 5746 | |
3031 | serge | 5747 | return &intel_fb->base; |
5748 | } |
||
2327 | Serge | 5749 | |
2330 | Serge | 5750 | static u32 |
5751 | intel_framebuffer_pitch_for_width(int width, int bpp) |
||
5752 | { |
||
5753 | u32 pitch = DIV_ROUND_UP(width * bpp, 8); |
||
5754 | return ALIGN(pitch, 64); |
||
5755 | } |
||
2327 | Serge | 5756 | |
2330 | Serge | 5757 | static u32 |
5758 | intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp) |
||
5759 | { |
||
5760 | u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp); |
||
5761 | return ALIGN(pitch * mode->vdisplay, PAGE_SIZE); |
||
5762 | } |
||
2327 | Serge | 5763 | |
2330 | Serge | 5764 | static struct drm_framebuffer * |
5765 | intel_framebuffer_create_for_mode(struct drm_device *dev, |
||
5766 | struct drm_display_mode *mode, |
||
5767 | int depth, int bpp) |
||
5768 | { |
||
5769 | struct drm_i915_gem_object *obj; |
||
2344 | Serge | 5770 | struct drm_mode_fb_cmd2 mode_cmd; |
2327 | Serge | 5771 | |
2330 | Serge | 5772 | // obj = i915_gem_alloc_object(dev, |
5773 | // intel_framebuffer_size_for_mode(mode, bpp)); |
||
5774 | // if (obj == NULL) |
||
5775 | return ERR_PTR(-ENOMEM); |
||
2327 | Serge | 5776 | |
2330 | Serge | 5777 | // mode_cmd.width = mode->hdisplay; |
5778 | // mode_cmd.height = mode->vdisplay; |
||
5779 | // mode_cmd.depth = depth; |
||
5780 | // mode_cmd.bpp = bpp; |
||
5781 | // mode_cmd.pitch = intel_framebuffer_pitch_for_width(mode_cmd.width, bpp); |
||
2327 | Serge | 5782 | |
2330 | Serge | 5783 | // return intel_framebuffer_create(dev, &mode_cmd, obj); |
5784 | } |
||
2327 | Serge | 5785 | |
2330 | Serge | 5786 | static struct drm_framebuffer * |
5787 | mode_fits_in_fbdev(struct drm_device *dev, |
||
5788 | struct drm_display_mode *mode) |
||
5789 | { |
||
5790 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
5791 | struct drm_i915_gem_object *obj; |
||
5792 | struct drm_framebuffer *fb; |
||
2327 | Serge | 5793 | |
2330 | Serge | 5794 | // if (dev_priv->fbdev == NULL) |
5795 | // return NULL; |
||
2327 | Serge | 5796 | |
2330 | Serge | 5797 | // obj = dev_priv->fbdev->ifb.obj; |
5798 | // if (obj == NULL) |
||
5799 | return NULL; |
||
2327 | Serge | 5800 | |
2330 | Serge | 5801 | // if (obj->base.size < mode->vdisplay * fb->pitch) |
3031 | serge | 5802 | if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay, |
5803 | fb->bits_per_pixel)) |
||
2330 | Serge | 5804 | // return NULL; |
2327 | Serge | 5805 | |
3031 | serge | 5806 | if (obj->base.size < mode->vdisplay * fb->pitches[0]) |
5807 | return NULL; |
||
5808 | |||
2330 | Serge | 5809 | // return fb; |
5810 | } |
||
2327 | Serge | 5811 | |
3031 | serge | 5812 | bool intel_get_load_detect_pipe(struct drm_connector *connector, |
2330 | Serge | 5813 | struct drm_display_mode *mode, |
5814 | struct intel_load_detect_pipe *old) |
||
5815 | { |
||
5816 | struct intel_crtc *intel_crtc; |
||
3031 | serge | 5817 | struct intel_encoder *intel_encoder = |
5818 | intel_attached_encoder(connector); |
||
2330 | Serge | 5819 | struct drm_crtc *possible_crtc; |
5820 | struct drm_encoder *encoder = &intel_encoder->base; |
||
5821 | struct drm_crtc *crtc = NULL; |
||
5822 | struct drm_device *dev = encoder->dev; |
||
3031 | serge | 5823 | struct drm_framebuffer *fb; |
2330 | Serge | 5824 | int i = -1; |
2327 | Serge | 5825 | |
2330 | Serge | 5826 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
5827 | connector->base.id, drm_get_connector_name(connector), |
||
5828 | encoder->base.id, drm_get_encoder_name(encoder)); |
||
2327 | Serge | 5829 | |
2330 | Serge | 5830 | /* |
5831 | * Algorithm gets a little messy: |
||
5832 | * |
||
5833 | * - if the connector already has an assigned crtc, use it (but make |
||
5834 | * sure it's on first) |
||
5835 | * |
||
5836 | * - try to find the first unused crtc that can drive this connector, |
||
5837 | * and use that if we find one |
||
5838 | */ |
||
2327 | Serge | 5839 | |
2330 | Serge | 5840 | /* See if we already have a CRTC for this connector */ |
5841 | if (encoder->crtc) { |
||
5842 | crtc = encoder->crtc; |
||
2327 | Serge | 5843 | |
3031 | serge | 5844 | old->dpms_mode = connector->dpms; |
2330 | Serge | 5845 | old->load_detect_temp = false; |
2327 | Serge | 5846 | |
2330 | Serge | 5847 | /* Make sure the crtc and connector are running */ |
3031 | serge | 5848 | if (connector->dpms != DRM_MODE_DPMS_ON) |
5849 | connector->funcs->dpms(connector, DRM_MODE_DPMS_ON); |
||
2327 | Serge | 5850 | |
2330 | Serge | 5851 | return true; |
5852 | } |
||
2327 | Serge | 5853 | |
2330 | Serge | 5854 | /* Find an unused one (if possible) */ |
5855 | list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) { |
||
5856 | i++; |
||
5857 | if (!(encoder->possible_crtcs & (1 << i))) |
||
5858 | continue; |
||
5859 | if (!possible_crtc->enabled) { |
||
5860 | crtc = possible_crtc; |
||
5861 | break; |
||
5862 | } |
||
5863 | } |
||
2327 | Serge | 5864 | |
2330 | Serge | 5865 | /* |
5866 | * If we didn't find an unused CRTC, don't use any. |
||
5867 | */ |
||
5868 | if (!crtc) { |
||
5869 | DRM_DEBUG_KMS("no pipe available for load-detect\n"); |
||
5870 | return false; |
||
5871 | } |
||
2327 | Serge | 5872 | |
3031 | serge | 5873 | intel_encoder->new_crtc = to_intel_crtc(crtc); |
5874 | to_intel_connector(connector)->new_encoder = intel_encoder; |
||
2327 | Serge | 5875 | |
2330 | Serge | 5876 | intel_crtc = to_intel_crtc(crtc); |
3031 | serge | 5877 | old->dpms_mode = connector->dpms; |
2330 | Serge | 5878 | old->load_detect_temp = true; |
5879 | old->release_fb = NULL; |
||
2327 | Serge | 5880 | |
2330 | Serge | 5881 | if (!mode) |
5882 | mode = &load_detect_mode; |
||
2327 | Serge | 5883 | |
2330 | Serge | 5884 | /* We need a framebuffer large enough to accommodate all accesses |
5885 | * that the plane may generate whilst we perform load detection. |
||
5886 | * We can not rely on the fbcon either being present (we get called |
||
5887 | * during its initialisation to detect all boot displays, or it may |
||
5888 | * not even exist) or that it is large enough to satisfy the |
||
5889 | * requested mode. |
||
5890 | */ |
||
3031 | serge | 5891 | fb = mode_fits_in_fbdev(dev, mode); |
5892 | if (fb == NULL) { |
||
2330 | Serge | 5893 | DRM_DEBUG_KMS("creating tmp fb for load-detection\n"); |
3031 | serge | 5894 | fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32); |
5895 | old->release_fb = fb; |
||
2330 | Serge | 5896 | } else |
5897 | DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n"); |
||
3031 | serge | 5898 | if (IS_ERR(fb)) { |
2330 | Serge | 5899 | DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n"); |
3031 | serge | 5900 | goto fail; |
2330 | Serge | 5901 | } |
2327 | Serge | 5902 | |
3031 | serge | 5903 | if (!intel_set_mode(crtc, mode, 0, 0, fb)) { |
2330 | Serge | 5904 | DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n"); |
5905 | if (old->release_fb) |
||
5906 | old->release_fb->funcs->destroy(old->release_fb); |
||
3031 | serge | 5907 | goto fail; |
2330 | Serge | 5908 | } |
2327 | Serge | 5909 | |
2330 | Serge | 5910 | /* let the connector get through one full cycle before testing */ |
5911 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
||
2327 | Serge | 5912 | |
2330 | Serge | 5913 | return true; |
3031 | serge | 5914 | fail: |
5915 | connector->encoder = NULL; |
||
5916 | encoder->crtc = NULL; |
||
5917 | return false; |
||
2330 | Serge | 5918 | } |
2327 | Serge | 5919 | |
3031 | serge | 5920 | void intel_release_load_detect_pipe(struct drm_connector *connector, |
2330 | Serge | 5921 | struct intel_load_detect_pipe *old) |
5922 | { |
||
3031 | serge | 5923 | struct intel_encoder *intel_encoder = |
5924 | intel_attached_encoder(connector); |
||
2330 | Serge | 5925 | struct drm_encoder *encoder = &intel_encoder->base; |
2327 | Serge | 5926 | |
2330 | Serge | 5927 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
5928 | connector->base.id, drm_get_connector_name(connector), |
||
5929 | encoder->base.id, drm_get_encoder_name(encoder)); |
||
2327 | Serge | 5930 | |
2330 | Serge | 5931 | if (old->load_detect_temp) { |
3031 | serge | 5932 | struct drm_crtc *crtc = encoder->crtc; |
2327 | Serge | 5933 | |
3031 | serge | 5934 | to_intel_connector(connector)->new_encoder = NULL; |
5935 | intel_encoder->new_crtc = NULL; |
||
5936 | intel_set_mode(crtc, NULL, 0, 0, NULL); |
||
5937 | |||
2330 | Serge | 5938 | if (old->release_fb) |
5939 | old->release_fb->funcs->destroy(old->release_fb); |
||
2327 | Serge | 5940 | |
2330 | Serge | 5941 | return; |
5942 | } |
||
2327 | Serge | 5943 | |
2330 | Serge | 5944 | /* Switch crtc and encoder back off if necessary */ |
3031 | serge | 5945 | if (old->dpms_mode != DRM_MODE_DPMS_ON) |
5946 | connector->funcs->dpms(connector, old->dpms_mode); |
||
2330 | Serge | 5947 | } |
2327 | Serge | 5948 | |
2330 | Serge | 5949 | /* Returns the clock of the currently programmed mode of the given pipe. */ |
5950 | static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc) |
||
5951 | { |
||
5952 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
5953 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
5954 | int pipe = intel_crtc->pipe; |
||
5955 | u32 dpll = I915_READ(DPLL(pipe)); |
||
5956 | u32 fp; |
||
5957 | intel_clock_t clock; |
||
2327 | Serge | 5958 | |
2330 | Serge | 5959 | if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) |
5960 | fp = I915_READ(FP0(pipe)); |
||
5961 | else |
||
5962 | fp = I915_READ(FP1(pipe)); |
||
2327 | Serge | 5963 | |
2330 | Serge | 5964 | clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; |
5965 | if (IS_PINEVIEW(dev)) { |
||
5966 | clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; |
||
5967 | clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT; |
||
5968 | } else { |
||
5969 | clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; |
||
5970 | clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; |
||
5971 | } |
||
2327 | Serge | 5972 | |
2330 | Serge | 5973 | if (!IS_GEN2(dev)) { |
5974 | if (IS_PINEVIEW(dev)) |
||
5975 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >> |
||
5976 | DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW); |
||
5977 | else |
||
5978 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> |
||
5979 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
||
2327 | Serge | 5980 | |
2330 | Serge | 5981 | switch (dpll & DPLL_MODE_MASK) { |
5982 | case DPLLB_MODE_DAC_SERIAL: |
||
5983 | clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? |
||
5984 | 5 : 10; |
||
5985 | break; |
||
5986 | case DPLLB_MODE_LVDS: |
||
5987 | clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? |
||
5988 | 7 : 14; |
||
5989 | break; |
||
5990 | default: |
||
5991 | DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed " |
||
5992 | "mode\n", (int)(dpll & DPLL_MODE_MASK)); |
||
5993 | return 0; |
||
5994 | } |
||
2327 | Serge | 5995 | |
2330 | Serge | 5996 | /* XXX: Handle the 100Mhz refclk */ |
5997 | intel_clock(dev, 96000, &clock); |
||
5998 | } else { |
||
5999 | bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN); |
||
2327 | Serge | 6000 | |
2330 | Serge | 6001 | if (is_lvds) { |
6002 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> |
||
6003 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
||
6004 | clock.p2 = 14; |
||
2327 | Serge | 6005 | |
2330 | Serge | 6006 | if ((dpll & PLL_REF_INPUT_MASK) == |
6007 | PLLB_REF_INPUT_SPREADSPECTRUMIN) { |
||
6008 | /* XXX: might not be 66MHz */ |
||
6009 | intel_clock(dev, 66000, &clock); |
||
6010 | } else |
||
6011 | intel_clock(dev, 48000, &clock); |
||
6012 | } else { |
||
6013 | if (dpll & PLL_P1_DIVIDE_BY_TWO) |
||
6014 | clock.p1 = 2; |
||
6015 | else { |
||
6016 | clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> |
||
6017 | DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; |
||
6018 | } |
||
6019 | if (dpll & PLL_P2_DIVIDE_BY_4) |
||
6020 | clock.p2 = 4; |
||
6021 | else |
||
6022 | clock.p2 = 2; |
||
2327 | Serge | 6023 | |
2330 | Serge | 6024 | intel_clock(dev, 48000, &clock); |
6025 | } |
||
6026 | } |
||
2327 | Serge | 6027 | |
2330 | Serge | 6028 | /* XXX: It would be nice to validate the clocks, but we can't reuse |
6029 | * i830PllIsValid() because it relies on the xf86_config connector |
||
6030 | * configuration being accurate, which it isn't necessarily. |
||
6031 | */ |
||
2327 | Serge | 6032 | |
2330 | Serge | 6033 | return clock.dot; |
6034 | } |
||
2327 | Serge | 6035 | |
2330 | Serge | 6036 | /** Returns the currently programmed mode of the given pipe. */ |
6037 | struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, |
||
6038 | struct drm_crtc *crtc) |
||
6039 | { |
||
6040 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
6041 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
6042 | int pipe = intel_crtc->pipe; |
||
6043 | struct drm_display_mode *mode; |
||
6044 | int htot = I915_READ(HTOTAL(pipe)); |
||
6045 | int hsync = I915_READ(HSYNC(pipe)); |
||
6046 | int vtot = I915_READ(VTOTAL(pipe)); |
||
6047 | int vsync = I915_READ(VSYNC(pipe)); |
||
2327 | Serge | 6048 | |
2330 | Serge | 6049 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); |
6050 | if (!mode) |
||
6051 | return NULL; |
||
6052 | |||
6053 | mode->clock = intel_crtc_clock_get(dev, crtc); |
||
6054 | mode->hdisplay = (htot & 0xffff) + 1; |
||
6055 | mode->htotal = ((htot & 0xffff0000) >> 16) + 1; |
||
6056 | mode->hsync_start = (hsync & 0xffff) + 1; |
||
6057 | mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; |
||
6058 | mode->vdisplay = (vtot & 0xffff) + 1; |
||
6059 | mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; |
||
6060 | mode->vsync_start = (vsync & 0xffff) + 1; |
||
6061 | mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; |
||
6062 | |||
6063 | drm_mode_set_name(mode); |
||
6064 | |||
6065 | return mode; |
||
6066 | } |
||
6067 | |||
2327 | Serge | 6068 | static void intel_increase_pllclock(struct drm_crtc *crtc) |
6069 | { |
||
6070 | struct drm_device *dev = crtc->dev; |
||
6071 | drm_i915_private_t *dev_priv = dev->dev_private; |
||
6072 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
6073 | int pipe = intel_crtc->pipe; |
||
6074 | int dpll_reg = DPLL(pipe); |
||
6075 | int dpll; |
||
6076 | |||
6077 | if (HAS_PCH_SPLIT(dev)) |
||
6078 | return; |
||
6079 | |||
6080 | if (!dev_priv->lvds_downclock_avail) |
||
6081 | return; |
||
6082 | |||
6083 | dpll = I915_READ(dpll_reg); |
||
6084 | if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) { |
||
6085 | DRM_DEBUG_DRIVER("upclocking LVDS\n"); |
||
6086 | |||
3031 | serge | 6087 | assert_panel_unlocked(dev_priv, pipe); |
2327 | Serge | 6088 | |
6089 | dpll &= ~DISPLAY_RATE_SELECT_FPA1; |
||
6090 | I915_WRITE(dpll_reg, dpll); |
||
6091 | intel_wait_for_vblank(dev, pipe); |
||
6092 | |||
6093 | dpll = I915_READ(dpll_reg); |
||
6094 | if (dpll & DISPLAY_RATE_SELECT_FPA1) |
||
6095 | DRM_DEBUG_DRIVER("failed to upclock LVDS!\n"); |
||
6096 | } |
||
6097 | } |
||
6098 | |||
3031 | serge | 6099 | static void intel_decrease_pllclock(struct drm_crtc *crtc) |
6100 | { |
||
6101 | struct drm_device *dev = crtc->dev; |
||
6102 | drm_i915_private_t *dev_priv = dev->dev_private; |
||
6103 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2327 | Serge | 6104 | |
3031 | serge | 6105 | if (HAS_PCH_SPLIT(dev)) |
6106 | return; |
||
2327 | Serge | 6107 | |
3031 | serge | 6108 | if (!dev_priv->lvds_downclock_avail) |
6109 | return; |
||
2327 | Serge | 6110 | |
3031 | serge | 6111 | /* |
6112 | * Since this is called by a timer, we should never get here in |
||
6113 | * the manual case. |
||
6114 | */ |
||
6115 | if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) { |
||
6116 | int pipe = intel_crtc->pipe; |
||
6117 | int dpll_reg = DPLL(pipe); |
||
6118 | int dpll; |
||
2327 | Serge | 6119 | |
3031 | serge | 6120 | DRM_DEBUG_DRIVER("downclocking LVDS\n"); |
2327 | Serge | 6121 | |
3031 | serge | 6122 | assert_panel_unlocked(dev_priv, pipe); |
2327 | Serge | 6123 | |
3031 | serge | 6124 | dpll = I915_READ(dpll_reg); |
6125 | dpll |= DISPLAY_RATE_SELECT_FPA1; |
||
6126 | I915_WRITE(dpll_reg, dpll); |
||
6127 | intel_wait_for_vblank(dev, pipe); |
||
6128 | dpll = I915_READ(dpll_reg); |
||
6129 | if (!(dpll & DISPLAY_RATE_SELECT_FPA1)) |
||
6130 | DRM_DEBUG_DRIVER("failed to downclock LVDS!\n"); |
||
6131 | } |
||
2327 | Serge | 6132 | |
3031 | serge | 6133 | } |
2327 | Serge | 6134 | |
3031 | serge | 6135 | void intel_mark_busy(struct drm_device *dev) |
6136 | { |
||
6137 | i915_update_gfx_val(dev->dev_private); |
||
6138 | } |
||
2327 | Serge | 6139 | |
3031 | serge | 6140 | void intel_mark_idle(struct drm_device *dev) |
6141 | { |
||
6142 | } |
||
2327 | Serge | 6143 | |
3031 | serge | 6144 | void intel_mark_fb_busy(struct drm_i915_gem_object *obj) |
6145 | { |
||
6146 | struct drm_device *dev = obj->base.dev; |
||
6147 | struct drm_crtc *crtc; |
||
2327 | Serge | 6148 | |
3031 | serge | 6149 | if (!i915_powersave) |
6150 | return; |
||
2327 | Serge | 6151 | |
3031 | serge | 6152 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
6153 | if (!crtc->fb) |
||
6154 | continue; |
||
2327 | Serge | 6155 | |
3031 | serge | 6156 | if (to_intel_framebuffer(crtc->fb)->obj == obj) |
6157 | intel_increase_pllclock(crtc); |
||
6158 | } |
||
6159 | } |
||
2327 | Serge | 6160 | |
3031 | serge | 6161 | void intel_mark_fb_idle(struct drm_i915_gem_object *obj) |
6162 | { |
||
6163 | struct drm_device *dev = obj->base.dev; |
||
6164 | struct drm_crtc *crtc; |
||
2327 | Serge | 6165 | |
3031 | serge | 6166 | if (!i915_powersave) |
6167 | return; |
||
2327 | Serge | 6168 | |
3031 | serge | 6169 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
6170 | if (!crtc->fb) |
||
6171 | continue; |
||
2327 | Serge | 6172 | |
3031 | serge | 6173 | if (to_intel_framebuffer(crtc->fb)->obj == obj) |
6174 | intel_decrease_pllclock(crtc); |
||
6175 | } |
||
6176 | } |
||
2327 | Serge | 6177 | |
2330 | Serge | 6178 | static void intel_crtc_destroy(struct drm_crtc *crtc) |
6179 | { |
||
6180 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
6181 | struct drm_device *dev = crtc->dev; |
||
6182 | struct intel_unpin_work *work; |
||
6183 | unsigned long flags; |
||
2327 | Serge | 6184 | |
2330 | Serge | 6185 | spin_lock_irqsave(&dev->event_lock, flags); |
6186 | work = intel_crtc->unpin_work; |
||
6187 | intel_crtc->unpin_work = NULL; |
||
6188 | spin_unlock_irqrestore(&dev->event_lock, flags); |
||
2327 | Serge | 6189 | |
2330 | Serge | 6190 | if (work) { |
6191 | // cancel_work_sync(&work->work); |
||
6192 | kfree(work); |
||
6193 | } |
||
2327 | Serge | 6194 | |
2330 | Serge | 6195 | drm_crtc_cleanup(crtc); |
2327 | Serge | 6196 | |
2330 | Serge | 6197 | kfree(intel_crtc); |
6198 | } |
||
2327 | Serge | 6199 | |
3031 | serge | 6200 | #if 0 |
6201 | static void intel_unpin_work_fn(struct work_struct *__work) |
||
6202 | { |
||
6203 | struct intel_unpin_work *work = |
||
6204 | container_of(__work, struct intel_unpin_work, work); |
||
2327 | Serge | 6205 | |
3031 | serge | 6206 | mutex_lock(&work->dev->struct_mutex); |
6207 | intel_unpin_fb_obj(work->old_fb_obj); |
||
6208 | drm_gem_object_unreference(&work->pending_flip_obj->base); |
||
6209 | drm_gem_object_unreference(&work->old_fb_obj->base); |
||
2327 | Serge | 6210 | |
3031 | serge | 6211 | intel_update_fbc(work->dev); |
6212 | mutex_unlock(&work->dev->struct_mutex); |
||
6213 | kfree(work); |
||
6214 | } |
||
2327 | Serge | 6215 | |
3031 | serge | 6216 | static void do_intel_finish_page_flip(struct drm_device *dev, |
6217 | struct drm_crtc *crtc) |
||
6218 | { |
||
6219 | drm_i915_private_t *dev_priv = dev->dev_private; |
||
6220 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
6221 | struct intel_unpin_work *work; |
||
6222 | struct drm_i915_gem_object *obj; |
||
6223 | struct drm_pending_vblank_event *e; |
||
6224 | struct timeval tvbl; |
||
6225 | unsigned long flags; |
||
2327 | Serge | 6226 | |
3031 | serge | 6227 | /* Ignore early vblank irqs */ |
6228 | if (intel_crtc == NULL) |
||
6229 | return; |
||
2327 | Serge | 6230 | |
3031 | serge | 6231 | spin_lock_irqsave(&dev->event_lock, flags); |
6232 | work = intel_crtc->unpin_work; |
||
6233 | if (work == NULL || !work->pending) { |
||
6234 | spin_unlock_irqrestore(&dev->event_lock, flags); |
||
6235 | return; |
||
6236 | } |
||
2327 | Serge | 6237 | |
3031 | serge | 6238 | intel_crtc->unpin_work = NULL; |
2327 | Serge | 6239 | |
3031 | serge | 6240 | if (work->event) { |
6241 | e = work->event; |
||
6242 | e->event.sequence = drm_vblank_count_and_time(dev, intel_crtc->pipe, &tvbl); |
||
2327 | Serge | 6243 | |
3031 | serge | 6244 | e->event.tv_sec = tvbl.tv_sec; |
6245 | e->event.tv_usec = tvbl.tv_usec; |
||
2327 | Serge | 6246 | |
3031 | serge | 6247 | list_add_tail(&e->base.link, |
6248 | &e->base.file_priv->event_list); |
||
6249 | wake_up_interruptible(&e->base.file_priv->event_wait); |
||
6250 | } |
||
2327 | Serge | 6251 | |
3031 | serge | 6252 | drm_vblank_put(dev, intel_crtc->pipe); |
2327 | Serge | 6253 | |
3031 | serge | 6254 | spin_unlock_irqrestore(&dev->event_lock, flags); |
2327 | Serge | 6255 | |
3031 | serge | 6256 | obj = work->old_fb_obj; |
2327 | Serge | 6257 | |
3031 | serge | 6258 | atomic_clear_mask(1 << intel_crtc->plane, |
6259 | &obj->pending_flip.counter); |
||
2327 | Serge | 6260 | |
3031 | serge | 6261 | wake_up(&dev_priv->pending_flip_queue); |
6262 | schedule_work(&work->work); |
||
2327 | Serge | 6263 | |
3031 | serge | 6264 | trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj); |
6265 | } |
||
2327 | Serge | 6266 | |
3031 | serge | 6267 | void intel_finish_page_flip(struct drm_device *dev, int pipe) |
6268 | { |
||
6269 | drm_i915_private_t *dev_priv = dev->dev_private; |
||
6270 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
||
2327 | Serge | 6271 | |
3031 | serge | 6272 | do_intel_finish_page_flip(dev, crtc); |
6273 | } |
||
2327 | Serge | 6274 | |
3031 | serge | 6275 | void intel_finish_page_flip_plane(struct drm_device *dev, int plane) |
6276 | { |
||
6277 | drm_i915_private_t *dev_priv = dev->dev_private; |
||
6278 | struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane]; |
||
2327 | Serge | 6279 | |
3031 | serge | 6280 | do_intel_finish_page_flip(dev, crtc); |
6281 | } |
||
2327 | Serge | 6282 | |
3031 | serge | 6283 | void intel_prepare_page_flip(struct drm_device *dev, int plane) |
6284 | { |
||
6285 | drm_i915_private_t *dev_priv = dev->dev_private; |
||
6286 | struct intel_crtc *intel_crtc = |
||
6287 | to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]); |
||
6288 | unsigned long flags; |
||
2327 | Serge | 6289 | |
3031 | serge | 6290 | spin_lock_irqsave(&dev->event_lock, flags); |
6291 | if (intel_crtc->unpin_work) { |
||
6292 | if ((++intel_crtc->unpin_work->pending) > 1) |
||
6293 | DRM_ERROR("Prepared flip multiple times\n"); |
||
6294 | } else { |
||
6295 | DRM_DEBUG_DRIVER("preparing flip with no unpin work?\n"); |
||
6296 | } |
||
6297 | spin_unlock_irqrestore(&dev->event_lock, flags); |
||
6298 | } |
||
2327 | Serge | 6299 | |
3031 | serge | 6300 | static int intel_gen2_queue_flip(struct drm_device *dev, |
6301 | struct drm_crtc *crtc, |
||
6302 | struct drm_framebuffer *fb, |
||
6303 | struct drm_i915_gem_object *obj) |
||
6304 | { |
||
6305 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
6306 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
6307 | u32 flip_mask; |
||
6308 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
||
6309 | int ret; |
||
2327 | Serge | 6310 | |
3031 | serge | 6311 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
6312 | if (ret) |
||
6313 | goto err; |
||
2327 | Serge | 6314 | |
3031 | serge | 6315 | ret = intel_ring_begin(ring, 6); |
6316 | if (ret) |
||
6317 | goto err_unpin; |
||
2327 | Serge | 6318 | |
3031 | serge | 6319 | /* Can't queue multiple flips, so wait for the previous |
6320 | * one to finish before executing the next. |
||
6321 | */ |
||
6322 | if (intel_crtc->plane) |
||
6323 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; |
||
6324 | else |
||
6325 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; |
||
6326 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
||
6327 | intel_ring_emit(ring, MI_NOOP); |
||
6328 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
||
6329 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); |
||
6330 | intel_ring_emit(ring, fb->pitches[0]); |
||
6331 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
||
6332 | intel_ring_emit(ring, 0); /* aux display base address, unused */ |
||
6333 | intel_ring_advance(ring); |
||
6334 | return 0; |
||
2327 | Serge | 6335 | |
3031 | serge | 6336 | err_unpin: |
6337 | intel_unpin_fb_obj(obj); |
||
6338 | err: |
||
6339 | return ret; |
||
6340 | } |
||
2327 | Serge | 6341 | |
3031 | serge | 6342 | static int intel_gen3_queue_flip(struct drm_device *dev, |
6343 | struct drm_crtc *crtc, |
||
6344 | struct drm_framebuffer *fb, |
||
6345 | struct drm_i915_gem_object *obj) |
||
6346 | { |
||
6347 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
6348 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
6349 | u32 flip_mask; |
||
6350 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
||
6351 | int ret; |
||
2327 | Serge | 6352 | |
3031 | serge | 6353 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
6354 | if (ret) |
||
6355 | goto err; |
||
2327 | Serge | 6356 | |
3031 | serge | 6357 | ret = intel_ring_begin(ring, 6); |
6358 | if (ret) |
||
6359 | goto err_unpin; |
||
2327 | Serge | 6360 | |
3031 | serge | 6361 | if (intel_crtc->plane) |
6362 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; |
||
6363 | else |
||
6364 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; |
||
6365 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask); |
||
6366 | intel_ring_emit(ring, MI_NOOP); |
||
6367 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | |
||
6368 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); |
||
6369 | intel_ring_emit(ring, fb->pitches[0]); |
||
6370 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
||
6371 | intel_ring_emit(ring, MI_NOOP); |
||
2327 | Serge | 6372 | |
3031 | serge | 6373 | intel_ring_advance(ring); |
6374 | return 0; |
||
2327 | Serge | 6375 | |
3031 | serge | 6376 | err_unpin: |
6377 | intel_unpin_fb_obj(obj); |
||
6378 | err: |
||
6379 | return ret; |
||
6380 | } |
||
2327 | Serge | 6381 | |
3031 | serge | 6382 | static int intel_gen4_queue_flip(struct drm_device *dev, |
6383 | struct drm_crtc *crtc, |
||
6384 | struct drm_framebuffer *fb, |
||
6385 | struct drm_i915_gem_object *obj) |
||
6386 | { |
||
6387 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
6388 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
6389 | uint32_t pf, pipesrc; |
||
6390 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
||
6391 | int ret; |
||
2327 | Serge | 6392 | |
3031 | serge | 6393 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
6394 | if (ret) |
||
6395 | goto err; |
||
2327 | Serge | 6396 | |
3031 | serge | 6397 | ret = intel_ring_begin(ring, 4); |
6398 | if (ret) |
||
6399 | goto err_unpin; |
||
2327 | Serge | 6400 | |
3031 | serge | 6401 | /* i965+ uses the linear or tiled offsets from the |
6402 | * Display Registers (which do not change across a page-flip) |
||
6403 | * so we need only reprogram the base address. |
||
6404 | */ |
||
6405 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
||
6406 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); |
||
6407 | intel_ring_emit(ring, fb->pitches[0]); |
||
6408 | intel_ring_emit(ring, |
||
6409 | (obj->gtt_offset + intel_crtc->dspaddr_offset) | |
||
6410 | obj->tiling_mode); |
||
2327 | Serge | 6411 | |
3031 | serge | 6412 | /* XXX Enabling the panel-fitter across page-flip is so far |
6413 | * untested on non-native modes, so ignore it for now. |
||
6414 | * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE; |
||
6415 | */ |
||
6416 | pf = 0; |
||
6417 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; |
||
6418 | intel_ring_emit(ring, pf | pipesrc); |
||
6419 | intel_ring_advance(ring); |
||
6420 | return 0; |
||
2327 | Serge | 6421 | |
3031 | serge | 6422 | err_unpin: |
6423 | intel_unpin_fb_obj(obj); |
||
6424 | err: |
||
6425 | return ret; |
||
6426 | } |
||
2327 | Serge | 6427 | |
3031 | serge | 6428 | static int intel_gen6_queue_flip(struct drm_device *dev, |
6429 | struct drm_crtc *crtc, |
||
6430 | struct drm_framebuffer *fb, |
||
6431 | struct drm_i915_gem_object *obj) |
||
6432 | { |
||
6433 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
6434 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
6435 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
||
6436 | uint32_t pf, pipesrc; |
||
6437 | int ret; |
||
2327 | Serge | 6438 | |
3031 | serge | 6439 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
6440 | if (ret) |
||
6441 | goto err; |
||
2327 | Serge | 6442 | |
3031 | serge | 6443 | ret = intel_ring_begin(ring, 4); |
6444 | if (ret) |
||
6445 | goto err_unpin; |
||
2327 | Serge | 6446 | |
3031 | serge | 6447 | intel_ring_emit(ring, MI_DISPLAY_FLIP | |
6448 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); |
||
6449 | intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode); |
||
6450 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
||
2327 | Serge | 6451 | |
3031 | serge | 6452 | /* Contrary to the suggestions in the documentation, |
6453 | * "Enable Panel Fitter" does not seem to be required when page |
||
6454 | * flipping with a non-native mode, and worse causes a normal |
||
6455 | * modeset to fail. |
||
6456 | * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE; |
||
6457 | */ |
||
6458 | pf = 0; |
||
6459 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; |
||
6460 | intel_ring_emit(ring, pf | pipesrc); |
||
6461 | intel_ring_advance(ring); |
||
6462 | return 0; |
||
2327 | Serge | 6463 | |
3031 | serge | 6464 | err_unpin: |
6465 | intel_unpin_fb_obj(obj); |
||
6466 | err: |
||
6467 | return ret; |
||
6468 | } |
||
2327 | Serge | 6469 | |
3031 | serge | 6470 | /* |
6471 | * On gen7 we currently use the blit ring because (in early silicon at least) |
||
6472 | * the render ring doesn't give us interrpts for page flip completion, which |
||
6473 | * means clients will hang after the first flip is queued. Fortunately the |
||
6474 | * blit ring generates interrupts properly, so use it instead. |
||
6475 | */ |
||
6476 | static int intel_gen7_queue_flip(struct drm_device *dev, |
||
6477 | struct drm_crtc *crtc, |
||
6478 | struct drm_framebuffer *fb, |
||
6479 | struct drm_i915_gem_object *obj) |
||
6480 | { |
||
6481 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
6482 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
6483 | struct intel_ring_buffer *ring = &dev_priv->ring[BCS]; |
||
6484 | uint32_t plane_bit = 0; |
||
6485 | int ret; |
||
2327 | Serge | 6486 | |
3031 | serge | 6487 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
6488 | if (ret) |
||
6489 | goto err; |
||
2327 | Serge | 6490 | |
3031 | serge | 6491 | switch(intel_crtc->plane) { |
6492 | case PLANE_A: |
||
6493 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A; |
||
6494 | break; |
||
6495 | case PLANE_B: |
||
6496 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B; |
||
6497 | break; |
||
6498 | case PLANE_C: |
||
6499 | plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C; |
||
6500 | break; |
||
6501 | default: |
||
6502 | WARN_ONCE(1, "unknown plane in flip command\n"); |
||
6503 | ret = -ENODEV; |
||
6504 | goto err_unpin; |
||
6505 | } |
||
2327 | Serge | 6506 | |
3031 | serge | 6507 | ret = intel_ring_begin(ring, 4); |
6508 | if (ret) |
||
6509 | goto err_unpin; |
||
2327 | Serge | 6510 | |
3031 | serge | 6511 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit); |
6512 | intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode)); |
||
6513 | intel_ring_emit(ring, obj->gtt_offset + intel_crtc->dspaddr_offset); |
||
6514 | intel_ring_emit(ring, (MI_NOOP)); |
||
6515 | intel_ring_advance(ring); |
||
6516 | return 0; |
||
2327 | Serge | 6517 | |
3031 | serge | 6518 | err_unpin: |
6519 | intel_unpin_fb_obj(obj); |
||
6520 | err: |
||
6521 | return ret; |
||
6522 | } |
||
2327 | Serge | 6523 | |
3031 | serge | 6524 | static int intel_default_queue_flip(struct drm_device *dev, |
6525 | struct drm_crtc *crtc, |
||
6526 | struct drm_framebuffer *fb, |
||
6527 | struct drm_i915_gem_object *obj) |
||
6528 | { |
||
6529 | return -ENODEV; |
||
6530 | } |
||
2327 | Serge | 6531 | |
3031 | serge | 6532 | static int intel_crtc_page_flip(struct drm_crtc *crtc, |
6533 | struct drm_framebuffer *fb, |
||
6534 | struct drm_pending_vblank_event *event) |
||
6535 | { |
||
6536 | struct drm_device *dev = crtc->dev; |
||
6537 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
6538 | struct intel_framebuffer *intel_fb; |
||
6539 | struct drm_i915_gem_object *obj; |
||
6540 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
6541 | struct intel_unpin_work *work; |
||
6542 | unsigned long flags; |
||
6543 | int ret; |
||
2327 | Serge | 6544 | |
3031 | serge | 6545 | /* Can't change pixel format via MI display flips. */ |
6546 | if (fb->pixel_format != crtc->fb->pixel_format) |
||
6547 | return -EINVAL; |
||
2327 | Serge | 6548 | |
3031 | serge | 6549 | /* |
6550 | * TILEOFF/LINOFF registers can't be changed via MI display flips. |
||
6551 | * Note that pitch changes could also affect these register. |
||
6552 | */ |
||
6553 | if (INTEL_INFO(dev)->gen > 3 && |
||
6554 | (fb->offsets[0] != crtc->fb->offsets[0] || |
||
6555 | fb->pitches[0] != crtc->fb->pitches[0])) |
||
6556 | return -EINVAL; |
||
2327 | Serge | 6557 | |
3031 | serge | 6558 | work = kzalloc(sizeof *work, GFP_KERNEL); |
6559 | if (work == NULL) |
||
6560 | return -ENOMEM; |
||
2327 | Serge | 6561 | |
3031 | serge | 6562 | work->event = event; |
6563 | work->dev = crtc->dev; |
||
6564 | intel_fb = to_intel_framebuffer(crtc->fb); |
||
6565 | work->old_fb_obj = intel_fb->obj; |
||
6566 | INIT_WORK(&work->work, intel_unpin_work_fn); |
||
2327 | Serge | 6567 | |
3031 | serge | 6568 | ret = drm_vblank_get(dev, intel_crtc->pipe); |
6569 | if (ret) |
||
6570 | goto free_work; |
||
2327 | Serge | 6571 | |
3031 | serge | 6572 | /* We borrow the event spin lock for protecting unpin_work */ |
6573 | spin_lock_irqsave(&dev->event_lock, flags); |
||
6574 | if (intel_crtc->unpin_work) { |
||
6575 | spin_unlock_irqrestore(&dev->event_lock, flags); |
||
6576 | kfree(work); |
||
6577 | drm_vblank_put(dev, intel_crtc->pipe); |
||
2327 | Serge | 6578 | |
3031 | serge | 6579 | DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); |
6580 | return -EBUSY; |
||
6581 | } |
||
6582 | intel_crtc->unpin_work = work; |
||
6583 | spin_unlock_irqrestore(&dev->event_lock, flags); |
||
2327 | Serge | 6584 | |
3031 | serge | 6585 | intel_fb = to_intel_framebuffer(fb); |
6586 | obj = intel_fb->obj; |
||
2327 | Serge | 6587 | |
3031 | serge | 6588 | ret = i915_mutex_lock_interruptible(dev); |
6589 | if (ret) |
||
6590 | goto cleanup; |
||
2327 | Serge | 6591 | |
3031 | serge | 6592 | /* Reference the objects for the scheduled work. */ |
6593 | drm_gem_object_reference(&work->old_fb_obj->base); |
||
6594 | drm_gem_object_reference(&obj->base); |
||
2327 | Serge | 6595 | |
3031 | serge | 6596 | crtc->fb = fb; |
2327 | Serge | 6597 | |
3031 | serge | 6598 | work->pending_flip_obj = obj; |
2327 | Serge | 6599 | |
3031 | serge | 6600 | work->enable_stall_check = true; |
6601 | |||
6602 | /* Block clients from rendering to the new back buffer until |
||
6603 | * the flip occurs and the object is no longer visible. |
||
6604 | */ |
||
6605 | atomic_add(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); |
||
6606 | |||
6607 | ret = dev_priv->display.queue_flip(dev, crtc, fb, obj); |
||
6608 | if (ret) |
||
6609 | goto cleanup_pending; |
||
6610 | |||
6611 | intel_disable_fbc(dev); |
||
6612 | intel_mark_fb_busy(obj); |
||
6613 | mutex_unlock(&dev->struct_mutex); |
||
6614 | |||
6615 | trace_i915_flip_request(intel_crtc->plane, obj); |
||
6616 | |||
6617 | return 0; |
||
6618 | |||
6619 | cleanup_pending: |
||
6620 | atomic_sub(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); |
||
6621 | drm_gem_object_unreference(&work->old_fb_obj->base); |
||
6622 | drm_gem_object_unreference(&obj->base); |
||
6623 | mutex_unlock(&dev->struct_mutex); |
||
6624 | |||
6625 | cleanup: |
||
6626 | spin_lock_irqsave(&dev->event_lock, flags); |
||
6627 | intel_crtc->unpin_work = NULL; |
||
6628 | spin_unlock_irqrestore(&dev->event_lock, flags); |
||
6629 | |||
6630 | drm_vblank_put(dev, intel_crtc->pipe); |
||
6631 | free_work: |
||
6632 | kfree(work); |
||
6633 | |||
6634 | return ret; |
||
6635 | } |
||
6636 | |||
6637 | #endif |
||
6638 | |||
6639 | static struct drm_crtc_helper_funcs intel_helper_funcs = { |
||
6640 | .mode_set_base_atomic = intel_pipe_set_base_atomic, |
||
6641 | .load_lut = intel_crtc_load_lut, |
||
6642 | .disable = intel_crtc_noop, |
||
6643 | }; |
||
6644 | |||
6645 | bool intel_encoder_check_is_cloned(struct intel_encoder *encoder) |
||
2330 | Serge | 6646 | { |
3031 | serge | 6647 | struct intel_encoder *other_encoder; |
6648 | struct drm_crtc *crtc = &encoder->new_crtc->base; |
||
2327 | Serge | 6649 | |
3031 | serge | 6650 | if (WARN_ON(!crtc)) |
6651 | return false; |
||
2327 | Serge | 6652 | |
3031 | serge | 6653 | list_for_each_entry(other_encoder, |
6654 | &crtc->dev->mode_config.encoder_list, |
||
6655 | base.head) { |
||
6656 | |||
6657 | if (&other_encoder->new_crtc->base != crtc || |
||
6658 | encoder == other_encoder) |
||
6659 | continue; |
||
6660 | else |
||
6661 | return true; |
||
6662 | } |
||
6663 | |||
6664 | return false; |
||
6665 | } |
||
6666 | |||
6667 | static bool intel_encoder_crtc_ok(struct drm_encoder *encoder, |
||
6668 | struct drm_crtc *crtc) |
||
6669 | { |
||
6670 | struct drm_device *dev; |
||
6671 | struct drm_crtc *tmp; |
||
6672 | int crtc_mask = 1; |
||
6673 | |||
6674 | WARN(!crtc, "checking null crtc?\n"); |
||
6675 | |||
6676 | dev = crtc->dev; |
||
6677 | |||
6678 | list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) { |
||
6679 | if (tmp == crtc) |
||
6680 | break; |
||
6681 | crtc_mask <<= 1; |
||
6682 | } |
||
6683 | |||
6684 | if (encoder->possible_crtcs & crtc_mask) |
||
6685 | return true; |
||
6686 | return false; |
||
6687 | } |
||
6688 | |||
6689 | /** |
||
6690 | * intel_modeset_update_staged_output_state |
||
6691 | * |
||
6692 | * Updates the staged output configuration state, e.g. after we've read out the |
||
6693 | * current hw state. |
||
6694 | */ |
||
6695 | static void intel_modeset_update_staged_output_state(struct drm_device *dev) |
||
6696 | { |
||
6697 | struct intel_encoder *encoder; |
||
6698 | struct intel_connector *connector; |
||
6699 | |||
6700 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
||
6701 | base.head) { |
||
6702 | connector->new_encoder = |
||
6703 | to_intel_encoder(connector->base.encoder); |
||
6704 | } |
||
6705 | |||
6706 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
||
6707 | base.head) { |
||
6708 | encoder->new_crtc = |
||
6709 | to_intel_crtc(encoder->base.crtc); |
||
6710 | } |
||
6711 | } |
||
6712 | |||
6713 | /** |
||
6714 | * intel_modeset_commit_output_state |
||
6715 | * |
||
6716 | * This function copies the stage display pipe configuration to the real one. |
||
6717 | */ |
||
6718 | static void intel_modeset_commit_output_state(struct drm_device *dev) |
||
6719 | { |
||
6720 | struct intel_encoder *encoder; |
||
6721 | struct intel_connector *connector; |
||
6722 | |||
6723 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
||
6724 | base.head) { |
||
6725 | connector->base.encoder = &connector->new_encoder->base; |
||
6726 | } |
||
6727 | |||
6728 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
||
6729 | base.head) { |
||
6730 | encoder->base.crtc = &encoder->new_crtc->base; |
||
6731 | } |
||
6732 | } |
||
6733 | |||
6734 | static struct drm_display_mode * |
||
6735 | intel_modeset_adjusted_mode(struct drm_crtc *crtc, |
||
6736 | struct drm_display_mode *mode) |
||
6737 | { |
||
6738 | struct drm_device *dev = crtc->dev; |
||
6739 | struct drm_display_mode *adjusted_mode; |
||
6740 | struct drm_encoder_helper_funcs *encoder_funcs; |
||
6741 | struct intel_encoder *encoder; |
||
6742 | |||
6743 | adjusted_mode = drm_mode_duplicate(dev, mode); |
||
6744 | if (!adjusted_mode) |
||
6745 | return ERR_PTR(-ENOMEM); |
||
6746 | |||
6747 | /* Pass our mode to the connectors and the CRTC to give them a chance to |
||
6748 | * adjust it according to limitations or connector properties, and also |
||
6749 | * a chance to reject the mode entirely. |
||
2330 | Serge | 6750 | */ |
3031 | serge | 6751 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
6752 | base.head) { |
||
2327 | Serge | 6753 | |
3031 | serge | 6754 | if (&encoder->new_crtc->base != crtc) |
6755 | continue; |
||
6756 | encoder_funcs = encoder->base.helper_private; |
||
6757 | if (!(encoder_funcs->mode_fixup(&encoder->base, mode, |
||
6758 | adjusted_mode))) { |
||
6759 | DRM_DEBUG_KMS("Encoder fixup failed\n"); |
||
6760 | goto fail; |
||
6761 | } |
||
6762 | } |
||
2327 | Serge | 6763 | |
3031 | serge | 6764 | if (!(intel_crtc_mode_fixup(crtc, mode, adjusted_mode))) { |
6765 | DRM_DEBUG_KMS("CRTC fixup failed\n"); |
||
6766 | goto fail; |
||
6767 | } |
||
6768 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
||
2327 | Serge | 6769 | |
3031 | serge | 6770 | return adjusted_mode; |
6771 | fail: |
||
6772 | drm_mode_destroy(dev, adjusted_mode); |
||
6773 | return ERR_PTR(-EINVAL); |
||
6774 | } |
||
2327 | Serge | 6775 | |
3031 | serge | 6776 | /* Computes which crtcs are affected and sets the relevant bits in the mask. For |
6777 | * simplicity we use the crtc's pipe number (because it's easier to obtain). */ |
||
6778 | static void |
||
6779 | intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes, |
||
6780 | unsigned *prepare_pipes, unsigned *disable_pipes) |
||
6781 | { |
||
6782 | struct intel_crtc *intel_crtc; |
||
6783 | struct drm_device *dev = crtc->dev; |
||
6784 | struct intel_encoder *encoder; |
||
6785 | struct intel_connector *connector; |
||
6786 | struct drm_crtc *tmp_crtc; |
||
6787 | |||
6788 | *disable_pipes = *modeset_pipes = *prepare_pipes = 0; |
||
6789 | |||
6790 | /* Check which crtcs have changed outputs connected to them, these need |
||
6791 | * to be part of the prepare_pipes mask. We don't (yet) support global |
||
6792 | * modeset across multiple crtcs, so modeset_pipes will only have one |
||
6793 | * bit set at most. */ |
||
6794 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
||
6795 | base.head) { |
||
6796 | if (connector->base.encoder == &connector->new_encoder->base) |
||
6797 | continue; |
||
6798 | |||
6799 | if (connector->base.encoder) { |
||
6800 | tmp_crtc = connector->base.encoder->crtc; |
||
6801 | |||
6802 | *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe; |
||
6803 | } |
||
6804 | |||
6805 | if (connector->new_encoder) |
||
6806 | *prepare_pipes |= |
||
6807 | 1 << connector->new_encoder->new_crtc->pipe; |
||
6808 | } |
||
6809 | |||
6810 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
||
6811 | base.head) { |
||
6812 | if (encoder->base.crtc == &encoder->new_crtc->base) |
||
6813 | continue; |
||
6814 | |||
6815 | if (encoder->base.crtc) { |
||
6816 | tmp_crtc = encoder->base.crtc; |
||
6817 | |||
6818 | *prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe; |
||
6819 | } |
||
6820 | |||
6821 | if (encoder->new_crtc) |
||
6822 | *prepare_pipes |= 1 << encoder->new_crtc->pipe; |
||
6823 | } |
||
6824 | |||
6825 | /* Check for any pipes that will be fully disabled ... */ |
||
6826 | list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, |
||
6827 | base.head) { |
||
6828 | bool used = false; |
||
6829 | |||
6830 | /* Don't try to disable disabled crtcs. */ |
||
6831 | if (!intel_crtc->base.enabled) |
||
6832 | continue; |
||
6833 | |||
6834 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
||
6835 | base.head) { |
||
6836 | if (encoder->new_crtc == intel_crtc) |
||
6837 | used = true; |
||
6838 | } |
||
6839 | |||
6840 | if (!used) |
||
6841 | *disable_pipes |= 1 << intel_crtc->pipe; |
||
6842 | } |
||
6843 | |||
6844 | |||
6845 | /* set_mode is also used to update properties on life display pipes. */ |
||
6846 | intel_crtc = to_intel_crtc(crtc); |
||
6847 | if (crtc->enabled) |
||
6848 | *prepare_pipes |= 1 << intel_crtc->pipe; |
||
6849 | |||
6850 | /* We only support modeset on one single crtc, hence we need to do that |
||
6851 | * only for the passed in crtc iff we change anything else than just |
||
6852 | * disable crtcs. |
||
6853 | * |
||
6854 | * This is actually not true, to be fully compatible with the old crtc |
||
6855 | * helper we automatically disable _any_ output (i.e. doesn't need to be |
||
6856 | * connected to the crtc we're modesetting on) if it's disconnected. |
||
6857 | * Which is a rather nutty api (since changed the output configuration |
||
6858 | * without userspace's explicit request can lead to confusion), but |
||
6859 | * alas. Hence we currently need to modeset on all pipes we prepare. */ |
||
6860 | if (*prepare_pipes) |
||
6861 | *modeset_pipes = *prepare_pipes; |
||
6862 | |||
6863 | /* ... and mask these out. */ |
||
6864 | *modeset_pipes &= ~(*disable_pipes); |
||
6865 | *prepare_pipes &= ~(*disable_pipes); |
||
2330 | Serge | 6866 | } |
2327 | Serge | 6867 | |
3031 | serge | 6868 | static bool intel_crtc_in_use(struct drm_crtc *crtc) |
2330 | Serge | 6869 | { |
3031 | serge | 6870 | struct drm_encoder *encoder; |
2330 | Serge | 6871 | struct drm_device *dev = crtc->dev; |
2327 | Serge | 6872 | |
3031 | serge | 6873 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) |
6874 | if (encoder->crtc == crtc) |
||
6875 | return true; |
||
6876 | |||
6877 | return false; |
||
6878 | } |
||
6879 | |||
6880 | static void |
||
6881 | intel_modeset_update_state(struct drm_device *dev, unsigned prepare_pipes) |
||
6882 | { |
||
6883 | struct intel_encoder *intel_encoder; |
||
6884 | struct intel_crtc *intel_crtc; |
||
6885 | struct drm_connector *connector; |
||
6886 | |||
6887 | list_for_each_entry(intel_encoder, &dev->mode_config.encoder_list, |
||
6888 | base.head) { |
||
6889 | if (!intel_encoder->base.crtc) |
||
6890 | continue; |
||
6891 | |||
6892 | intel_crtc = to_intel_crtc(intel_encoder->base.crtc); |
||
6893 | |||
6894 | if (prepare_pipes & (1 << intel_crtc->pipe)) |
||
6895 | intel_encoder->connectors_active = false; |
||
6896 | } |
||
6897 | |||
6898 | intel_modeset_commit_output_state(dev); |
||
6899 | |||
6900 | /* Update computed state. */ |
||
6901 | list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, |
||
6902 | base.head) { |
||
6903 | intel_crtc->base.enabled = intel_crtc_in_use(&intel_crtc->base); |
||
6904 | } |
||
6905 | |||
6906 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
||
6907 | if (!connector->encoder || !connector->encoder->crtc) |
||
6908 | continue; |
||
6909 | |||
6910 | intel_crtc = to_intel_crtc(connector->encoder->crtc); |
||
6911 | |||
6912 | if (prepare_pipes & (1 << intel_crtc->pipe)) { |
||
6913 | struct drm_property *dpms_property = |
||
6914 | dev->mode_config.dpms_property; |
||
6915 | |||
6916 | connector->dpms = DRM_MODE_DPMS_ON; |
||
6917 | drm_connector_property_set_value(connector, |
||
6918 | dpms_property, |
||
6919 | DRM_MODE_DPMS_ON); |
||
6920 | |||
6921 | intel_encoder = to_intel_encoder(connector->encoder); |
||
6922 | intel_encoder->connectors_active = true; |
||
6923 | } |
||
6924 | } |
||
6925 | |||
6926 | } |
||
6927 | |||
6928 | #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \ |
||
6929 | list_for_each_entry((intel_crtc), \ |
||
6930 | &(dev)->mode_config.crtc_list, \ |
||
6931 | base.head) \ |
||
6932 | if (mask & (1 <<(intel_crtc)->pipe)) \ |
||
6933 | |||
6934 | void |
||
6935 | intel_modeset_check_state(struct drm_device *dev) |
||
6936 | { |
||
6937 | struct intel_crtc *crtc; |
||
6938 | struct intel_encoder *encoder; |
||
6939 | struct intel_connector *connector; |
||
6940 | |||
6941 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
||
6942 | base.head) { |
||
6943 | /* This also checks the encoder/connector hw state with the |
||
6944 | * ->get_hw_state callbacks. */ |
||
6945 | intel_connector_check_state(connector); |
||
6946 | |||
6947 | WARN(&connector->new_encoder->base != connector->base.encoder, |
||
6948 | "connector's staged encoder doesn't match current encoder\n"); |
||
6949 | } |
||
6950 | |||
6951 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
||
6952 | base.head) { |
||
6953 | bool enabled = false; |
||
6954 | bool active = false; |
||
6955 | enum pipe pipe, tracked_pipe; |
||
6956 | |||
6957 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", |
||
6958 | encoder->base.base.id, |
||
6959 | drm_get_encoder_name(&encoder->base)); |
||
6960 | |||
6961 | WARN(&encoder->new_crtc->base != encoder->base.crtc, |
||
6962 | "encoder's stage crtc doesn't match current crtc\n"); |
||
6963 | WARN(encoder->connectors_active && !encoder->base.crtc, |
||
6964 | "encoder's active_connectors set, but no crtc\n"); |
||
6965 | |||
6966 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
||
6967 | base.head) { |
||
6968 | if (connector->base.encoder != &encoder->base) |
||
6969 | continue; |
||
6970 | enabled = true; |
||
6971 | if (connector->base.dpms != DRM_MODE_DPMS_OFF) |
||
6972 | active = true; |
||
6973 | } |
||
6974 | WARN(!!encoder->base.crtc != enabled, |
||
6975 | "encoder's enabled state mismatch " |
||
6976 | "(expected %i, found %i)\n", |
||
6977 | !!encoder->base.crtc, enabled); |
||
6978 | WARN(active && !encoder->base.crtc, |
||
6979 | "active encoder with no crtc\n"); |
||
6980 | |||
6981 | WARN(encoder->connectors_active != active, |
||
6982 | "encoder's computed active state doesn't match tracked active state " |
||
6983 | "(expected %i, found %i)\n", active, encoder->connectors_active); |
||
6984 | |||
6985 | active = encoder->get_hw_state(encoder, &pipe); |
||
6986 | WARN(active != encoder->connectors_active, |
||
6987 | "encoder's hw state doesn't match sw tracking " |
||
6988 | "(expected %i, found %i)\n", |
||
6989 | encoder->connectors_active, active); |
||
6990 | |||
6991 | if (!encoder->base.crtc) |
||
6992 | continue; |
||
6993 | |||
6994 | tracked_pipe = to_intel_crtc(encoder->base.crtc)->pipe; |
||
6995 | WARN(active && pipe != tracked_pipe, |
||
6996 | "active encoder's pipe doesn't match" |
||
6997 | "(expected %i, found %i)\n", |
||
6998 | tracked_pipe, pipe); |
||
6999 | |||
7000 | } |
||
7001 | |||
7002 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, |
||
7003 | base.head) { |
||
7004 | bool enabled = false; |
||
7005 | bool active = false; |
||
7006 | |||
7007 | DRM_DEBUG_KMS("[CRTC:%d]\n", |
||
7008 | crtc->base.base.id); |
||
7009 | |||
7010 | WARN(crtc->active && !crtc->base.enabled, |
||
7011 | "active crtc, but not enabled in sw tracking\n"); |
||
7012 | |||
7013 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
||
7014 | base.head) { |
||
7015 | if (encoder->base.crtc != &crtc->base) |
||
7016 | continue; |
||
7017 | enabled = true; |
||
7018 | if (encoder->connectors_active) |
||
7019 | active = true; |
||
7020 | } |
||
7021 | WARN(active != crtc->active, |
||
7022 | "crtc's computed active state doesn't match tracked active state " |
||
7023 | "(expected %i, found %i)\n", active, crtc->active); |
||
7024 | WARN(enabled != crtc->base.enabled, |
||
7025 | "crtc's computed enabled state doesn't match tracked enabled state " |
||
7026 | "(expected %i, found %i)\n", enabled, crtc->base.enabled); |
||
7027 | |||
7028 | assert_pipe(dev->dev_private, crtc->pipe, crtc->active); |
||
7029 | } |
||
7030 | } |
||
7031 | |||
7032 | bool intel_set_mode(struct drm_crtc *crtc, |
||
7033 | struct drm_display_mode *mode, |
||
7034 | int x, int y, struct drm_framebuffer *fb) |
||
7035 | { |
||
7036 | struct drm_device *dev = crtc->dev; |
||
7037 | drm_i915_private_t *dev_priv = dev->dev_private; |
||
7038 | struct drm_display_mode *adjusted_mode, saved_mode, saved_hwmode; |
||
7039 | struct drm_encoder_helper_funcs *encoder_funcs; |
||
7040 | struct drm_encoder *encoder; |
||
7041 | struct intel_crtc *intel_crtc; |
||
7042 | unsigned disable_pipes, prepare_pipes, modeset_pipes; |
||
7043 | bool ret = true; |
||
7044 | |||
7045 | intel_modeset_affected_pipes(crtc, &modeset_pipes, |
||
7046 | &prepare_pipes, &disable_pipes); |
||
7047 | |||
7048 | DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n", |
||
7049 | modeset_pipes, prepare_pipes, disable_pipes); |
||
7050 | |||
7051 | for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc) |
||
7052 | intel_crtc_disable(&intel_crtc->base); |
||
7053 | |||
7054 | saved_hwmode = crtc->hwmode; |
||
7055 | saved_mode = crtc->mode; |
||
7056 | |||
7057 | /* Hack: Because we don't (yet) support global modeset on multiple |
||
7058 | * crtcs, we don't keep track of the new mode for more than one crtc. |
||
7059 | * Hence simply check whether any bit is set in modeset_pipes in all the |
||
7060 | * pieces of code that are not yet converted to deal with mutliple crtcs |
||
7061 | * changing their mode at the same time. */ |
||
7062 | adjusted_mode = NULL; |
||
7063 | if (modeset_pipes) { |
||
7064 | adjusted_mode = intel_modeset_adjusted_mode(crtc, mode); |
||
7065 | if (IS_ERR(adjusted_mode)) { |
||
7066 | return false; |
||
7067 | } |
||
7068 | } |
||
7069 | |||
7070 | for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) { |
||
7071 | if (intel_crtc->base.enabled) |
||
7072 | dev_priv->display.crtc_disable(&intel_crtc->base); |
||
7073 | } |
||
7074 | |||
7075 | /* crtc->mode is already used by the ->mode_set callbacks, hence we need |
||
7076 | * to set it here already despite that we pass it down the callchain. |
||
2330 | Serge | 7077 | */ |
3031 | serge | 7078 | if (modeset_pipes) |
7079 | crtc->mode = *mode; |
||
2327 | Serge | 7080 | |
3031 | serge | 7081 | /* Only after disabling all output pipelines that will be changed can we |
7082 | * update the the output configuration. */ |
||
7083 | intel_modeset_update_state(dev, prepare_pipes); |
||
7084 | |||
7085 | /* Set up the DPLL and any encoders state that needs to adjust or depend |
||
7086 | * on the DPLL. |
||
2330 | Serge | 7087 | */ |
3031 | serge | 7088 | for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) { |
7089 | ret = !intel_crtc_mode_set(&intel_crtc->base, |
||
7090 | mode, adjusted_mode, |
||
7091 | x, y, fb); |
||
7092 | if (!ret) |
||
7093 | goto done; |
||
7094 | |||
7095 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
||
7096 | |||
7097 | if (encoder->crtc != &intel_crtc->base) |
||
7098 | continue; |
||
7099 | |||
7100 | DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n", |
||
7101 | encoder->base.id, drm_get_encoder_name(encoder), |
||
7102 | mode->base.id, mode->name); |
||
7103 | encoder_funcs = encoder->helper_private; |
||
7104 | encoder_funcs->mode_set(encoder, mode, adjusted_mode); |
||
7105 | } |
||
7106 | } |
||
7107 | |||
7108 | /* Now enable the clocks, plane, pipe, and connectors that we set up. */ |
||
7109 | for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) |
||
7110 | dev_priv->display.crtc_enable(&intel_crtc->base); |
||
7111 | |||
7112 | if (modeset_pipes) { |
||
7113 | /* Store real post-adjustment hardware mode. */ |
||
7114 | crtc->hwmode = *adjusted_mode; |
||
7115 | |||
7116 | /* Calculate and store various constants which |
||
7117 | * are later needed by vblank and swap-completion |
||
7118 | * timestamping. They are derived from true hwmode. |
||
7119 | */ |
||
7120 | drm_calc_timestamping_constants(crtc); |
||
7121 | } |
||
7122 | |||
7123 | /* FIXME: add subpixel order */ |
||
7124 | done: |
||
7125 | drm_mode_destroy(dev, adjusted_mode); |
||
7126 | if (!ret && crtc->enabled) { |
||
7127 | crtc->hwmode = saved_hwmode; |
||
7128 | crtc->mode = saved_mode; |
||
7129 | } else { |
||
7130 | intel_modeset_check_state(dev); |
||
7131 | } |
||
7132 | |||
7133 | return ret; |
||
2330 | Serge | 7134 | } |
2327 | Serge | 7135 | |
3031 | serge | 7136 | #undef for_each_intel_crtc_masked |
2327 | Serge | 7137 | |
3031 | serge | 7138 | static void intel_set_config_free(struct intel_set_config *config) |
7139 | { |
||
7140 | if (!config) |
||
7141 | return; |
||
7142 | |||
7143 | kfree(config->save_connector_encoders); |
||
7144 | kfree(config->save_encoder_crtcs); |
||
7145 | kfree(config); |
||
7146 | } |
||
7147 | |||
7148 | static int intel_set_config_save_state(struct drm_device *dev, |
||
7149 | struct intel_set_config *config) |
||
7150 | { |
||
7151 | struct drm_encoder *encoder; |
||
7152 | struct drm_connector *connector; |
||
7153 | int count; |
||
7154 | |||
7155 | config->save_encoder_crtcs = |
||
7156 | kcalloc(dev->mode_config.num_encoder, |
||
7157 | sizeof(struct drm_crtc *), GFP_KERNEL); |
||
7158 | if (!config->save_encoder_crtcs) |
||
7159 | return -ENOMEM; |
||
7160 | |||
7161 | config->save_connector_encoders = |
||
7162 | kcalloc(dev->mode_config.num_connector, |
||
7163 | sizeof(struct drm_encoder *), GFP_KERNEL); |
||
7164 | if (!config->save_connector_encoders) |
||
7165 | return -ENOMEM; |
||
7166 | |||
7167 | /* Copy data. Note that driver private data is not affected. |
||
7168 | * Should anything bad happen only the expected state is |
||
7169 | * restored, not the drivers personal bookkeeping. |
||
7170 | */ |
||
7171 | count = 0; |
||
7172 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
||
7173 | config->save_encoder_crtcs[count++] = encoder->crtc; |
||
7174 | } |
||
7175 | |||
7176 | count = 0; |
||
7177 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
||
7178 | config->save_connector_encoders[count++] = connector->encoder; |
||
7179 | } |
||
7180 | |||
7181 | return 0; |
||
7182 | } |
||
7183 | |||
7184 | static void intel_set_config_restore_state(struct drm_device *dev, |
||
7185 | struct intel_set_config *config) |
||
7186 | { |
||
7187 | struct intel_encoder *encoder; |
||
7188 | struct intel_connector *connector; |
||
7189 | int count; |
||
7190 | |||
7191 | count = 0; |
||
7192 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
||
7193 | encoder->new_crtc = |
||
7194 | to_intel_crtc(config->save_encoder_crtcs[count++]); |
||
7195 | } |
||
7196 | |||
7197 | count = 0; |
||
7198 | list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) { |
||
7199 | connector->new_encoder = |
||
7200 | to_intel_encoder(config->save_connector_encoders[count++]); |
||
7201 | } |
||
7202 | } |
||
7203 | |||
7204 | static void |
||
7205 | intel_set_config_compute_mode_changes(struct drm_mode_set *set, |
||
7206 | struct intel_set_config *config) |
||
7207 | { |
||
7208 | |||
7209 | /* We should be able to check here if the fb has the same properties |
||
7210 | * and then just flip_or_move it */ |
||
7211 | if (set->crtc->fb != set->fb) { |
||
7212 | /* If we have no fb then treat it as a full mode set */ |
||
7213 | if (set->crtc->fb == NULL) { |
||
7214 | DRM_DEBUG_KMS("crtc has no fb, full mode set\n"); |
||
7215 | config->mode_changed = true; |
||
7216 | } else if (set->fb == NULL) { |
||
7217 | config->mode_changed = true; |
||
7218 | } else if (set->fb->depth != set->crtc->fb->depth) { |
||
7219 | config->mode_changed = true; |
||
7220 | } else if (set->fb->bits_per_pixel != |
||
7221 | set->crtc->fb->bits_per_pixel) { |
||
7222 | config->mode_changed = true; |
||
7223 | } else |
||
7224 | config->fb_changed = true; |
||
7225 | } |
||
7226 | |||
7227 | if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y)) |
||
7228 | config->fb_changed = true; |
||
7229 | |||
7230 | if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) { |
||
7231 | DRM_DEBUG_KMS("modes are different, full mode set\n"); |
||
7232 | drm_mode_debug_printmodeline(&set->crtc->mode); |
||
7233 | drm_mode_debug_printmodeline(set->mode); |
||
7234 | config->mode_changed = true; |
||
7235 | } |
||
7236 | } |
||
7237 | |||
7238 | static int |
||
7239 | intel_modeset_stage_output_state(struct drm_device *dev, |
||
7240 | struct drm_mode_set *set, |
||
7241 | struct intel_set_config *config) |
||
7242 | { |
||
7243 | struct drm_crtc *new_crtc; |
||
7244 | struct intel_connector *connector; |
||
7245 | struct intel_encoder *encoder; |
||
7246 | int count, ro; |
||
7247 | |||
7248 | /* The upper layers ensure that we either disabl a crtc or have a list |
||
7249 | * of connectors. For paranoia, double-check this. */ |
||
7250 | WARN_ON(!set->fb && (set->num_connectors != 0)); |
||
7251 | WARN_ON(set->fb && (set->num_connectors == 0)); |
||
7252 | |||
7253 | count = 0; |
||
7254 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
||
7255 | base.head) { |
||
7256 | /* Otherwise traverse passed in connector list and get encoders |
||
7257 | * for them. */ |
||
7258 | for (ro = 0; ro < set->num_connectors; ro++) { |
||
7259 | if (set->connectors[ro] == &connector->base) { |
||
7260 | connector->new_encoder = connector->encoder; |
||
7261 | break; |
||
7262 | } |
||
7263 | } |
||
7264 | |||
7265 | /* If we disable the crtc, disable all its connectors. Also, if |
||
7266 | * the connector is on the changing crtc but not on the new |
||
7267 | * connector list, disable it. */ |
||
7268 | if ((!set->fb || ro == set->num_connectors) && |
||
7269 | connector->base.encoder && |
||
7270 | connector->base.encoder->crtc == set->crtc) { |
||
7271 | connector->new_encoder = NULL; |
||
7272 | |||
7273 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n", |
||
7274 | connector->base.base.id, |
||
7275 | drm_get_connector_name(&connector->base)); |
||
7276 | } |
||
7277 | |||
7278 | |||
7279 | if (&connector->new_encoder->base != connector->base.encoder) { |
||
7280 | DRM_DEBUG_KMS("encoder changed, full mode switch\n"); |
||
7281 | config->mode_changed = true; |
||
7282 | } |
||
7283 | |||
7284 | /* Disable all disconnected encoders. */ |
||
7285 | if (connector->base.status == connector_status_disconnected) |
||
7286 | connector->new_encoder = NULL; |
||
7287 | } |
||
7288 | /* connector->new_encoder is now updated for all connectors. */ |
||
7289 | |||
7290 | /* Update crtc of enabled connectors. */ |
||
7291 | count = 0; |
||
7292 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
||
7293 | base.head) { |
||
7294 | if (!connector->new_encoder) |
||
7295 | continue; |
||
7296 | |||
7297 | new_crtc = connector->new_encoder->base.crtc; |
||
7298 | |||
7299 | for (ro = 0; ro < set->num_connectors; ro++) { |
||
7300 | if (set->connectors[ro] == &connector->base) |
||
7301 | new_crtc = set->crtc; |
||
7302 | } |
||
7303 | |||
7304 | /* Make sure the new CRTC will work with the encoder */ |
||
7305 | if (!intel_encoder_crtc_ok(&connector->new_encoder->base, |
||
7306 | new_crtc)) { |
||
7307 | return -EINVAL; |
||
7308 | } |
||
7309 | connector->encoder->new_crtc = to_intel_crtc(new_crtc); |
||
7310 | |||
7311 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n", |
||
7312 | connector->base.base.id, |
||
7313 | drm_get_connector_name(&connector->base), |
||
7314 | new_crtc->base.id); |
||
7315 | } |
||
7316 | |||
7317 | /* Check for any encoders that needs to be disabled. */ |
||
7318 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
||
7319 | base.head) { |
||
7320 | list_for_each_entry(connector, |
||
7321 | &dev->mode_config.connector_list, |
||
7322 | base.head) { |
||
7323 | if (connector->new_encoder == encoder) { |
||
7324 | WARN_ON(!connector->new_encoder->new_crtc); |
||
7325 | |||
7326 | goto next_encoder; |
||
7327 | } |
||
7328 | } |
||
7329 | encoder->new_crtc = NULL; |
||
7330 | next_encoder: |
||
7331 | /* Only now check for crtc changes so we don't miss encoders |
||
7332 | * that will be disabled. */ |
||
7333 | if (&encoder->new_crtc->base != encoder->base.crtc) { |
||
7334 | DRM_DEBUG_KMS("crtc changed, full mode switch\n"); |
||
7335 | config->mode_changed = true; |
||
7336 | } |
||
7337 | } |
||
7338 | /* Now we've also updated encoder->new_crtc for all encoders. */ |
||
7339 | |||
7340 | return 0; |
||
7341 | } |
||
7342 | |||
7343 | static int intel_crtc_set_config(struct drm_mode_set *set) |
||
7344 | { |
||
7345 | struct drm_device *dev; |
||
7346 | struct drm_mode_set save_set; |
||
7347 | struct intel_set_config *config; |
||
7348 | int ret; |
||
7349 | |||
7350 | BUG_ON(!set); |
||
7351 | BUG_ON(!set->crtc); |
||
7352 | BUG_ON(!set->crtc->helper_private); |
||
7353 | |||
7354 | if (!set->mode) |
||
7355 | set->fb = NULL; |
||
7356 | |||
7357 | /* The fb helper likes to play gross jokes with ->mode_set_config. |
||
7358 | * Unfortunately the crtc helper doesn't do much at all for this case, |
||
7359 | * so we have to cope with this madness until the fb helper is fixed up. */ |
||
7360 | if (set->fb && set->num_connectors == 0) |
||
7361 | return 0; |
||
7362 | |||
7363 | if (set->fb) { |
||
7364 | DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n", |
||
7365 | set->crtc->base.id, set->fb->base.id, |
||
7366 | (int)set->num_connectors, set->x, set->y); |
||
7367 | } else { |
||
7368 | DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id); |
||
7369 | } |
||
7370 | |||
7371 | dev = set->crtc->dev; |
||
7372 | |||
7373 | ret = -ENOMEM; |
||
7374 | config = kzalloc(sizeof(*config), GFP_KERNEL); |
||
7375 | if (!config) |
||
7376 | goto out_config; |
||
7377 | |||
7378 | ret = intel_set_config_save_state(dev, config); |
||
7379 | if (ret) |
||
7380 | goto out_config; |
||
7381 | |||
7382 | save_set.crtc = set->crtc; |
||
7383 | save_set.mode = &set->crtc->mode; |
||
7384 | save_set.x = set->crtc->x; |
||
7385 | save_set.y = set->crtc->y; |
||
7386 | save_set.fb = set->crtc->fb; |
||
7387 | |||
7388 | /* Compute whether we need a full modeset, only an fb base update or no |
||
7389 | * change at all. In the future we might also check whether only the |
||
7390 | * mode changed, e.g. for LVDS where we only change the panel fitter in |
||
7391 | * such cases. */ |
||
7392 | intel_set_config_compute_mode_changes(set, config); |
||
7393 | |||
7394 | ret = intel_modeset_stage_output_state(dev, set, config); |
||
7395 | if (ret) |
||
7396 | goto fail; |
||
7397 | |||
7398 | if (config->mode_changed) { |
||
7399 | if (set->mode) { |
||
7400 | DRM_DEBUG_KMS("attempting to set mode from" |
||
7401 | " userspace\n"); |
||
7402 | drm_mode_debug_printmodeline(set->mode); |
||
7403 | } |
||
7404 | |||
7405 | if (!intel_set_mode(set->crtc, set->mode, |
||
7406 | set->x, set->y, set->fb)) { |
||
7407 | DRM_ERROR("failed to set mode on [CRTC:%d]\n", |
||
7408 | set->crtc->base.id); |
||
7409 | ret = -EINVAL; |
||
7410 | goto fail; |
||
7411 | } |
||
7412 | } else if (config->fb_changed) { |
||
7413 | ret = intel_pipe_set_base(set->crtc, |
||
7414 | set->x, set->y, set->fb); |
||
7415 | } |
||
7416 | |||
7417 | intel_set_config_free(config); |
||
7418 | |||
7419 | return 0; |
||
7420 | |||
7421 | fail: |
||
7422 | intel_set_config_restore_state(dev, config); |
||
7423 | |||
7424 | /* Try to restore the config */ |
||
7425 | if (config->mode_changed && |
||
7426 | !intel_set_mode(save_set.crtc, save_set.mode, |
||
7427 | save_set.x, save_set.y, save_set.fb)) |
||
7428 | DRM_ERROR("failed to restore config after modeset failure\n"); |
||
7429 | |||
7430 | out_config: |
||
7431 | intel_set_config_free(config); |
||
7432 | return ret; |
||
7433 | } |
||
7434 | |||
2330 | Serge | 7435 | static const struct drm_crtc_funcs intel_crtc_funcs = { |
7436 | // .cursor_set = intel_crtc_cursor_set, |
||
7437 | // .cursor_move = intel_crtc_cursor_move, |
||
7438 | .gamma_set = intel_crtc_gamma_set, |
||
3031 | serge | 7439 | .set_config = intel_crtc_set_config, |
2330 | Serge | 7440 | .destroy = intel_crtc_destroy, |
7441 | // .page_flip = intel_crtc_page_flip, |
||
7442 | }; |
||
2327 | Serge | 7443 | |
3031 | serge | 7444 | static void intel_pch_pll_init(struct drm_device *dev) |
7445 | { |
||
7446 | drm_i915_private_t *dev_priv = dev->dev_private; |
||
7447 | int i; |
||
7448 | |||
7449 | if (dev_priv->num_pch_pll == 0) { |
||
7450 | DRM_DEBUG_KMS("No PCH PLLs on this hardware, skipping initialisation\n"); |
||
7451 | return; |
||
7452 | } |
||
7453 | |||
7454 | for (i = 0; i < dev_priv->num_pch_pll; i++) { |
||
7455 | dev_priv->pch_plls[i].pll_reg = _PCH_DPLL(i); |
||
7456 | dev_priv->pch_plls[i].fp0_reg = _PCH_FP0(i); |
||
7457 | dev_priv->pch_plls[i].fp1_reg = _PCH_FP1(i); |
||
7458 | } |
||
7459 | } |
||
7460 | |||
2330 | Serge | 7461 | static void intel_crtc_init(struct drm_device *dev, int pipe) |
7462 | { |
||
7463 | drm_i915_private_t *dev_priv = dev->dev_private; |
||
7464 | struct intel_crtc *intel_crtc; |
||
7465 | int i; |
||
2327 | Serge | 7466 | |
2330 | Serge | 7467 | intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL); |
7468 | if (intel_crtc == NULL) |
||
7469 | return; |
||
2327 | Serge | 7470 | |
2330 | Serge | 7471 | drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs); |
2327 | Serge | 7472 | |
2330 | Serge | 7473 | drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256); |
7474 | for (i = 0; i < 256; i++) { |
||
7475 | intel_crtc->lut_r[i] = i; |
||
7476 | intel_crtc->lut_g[i] = i; |
||
7477 | intel_crtc->lut_b[i] = i; |
||
7478 | } |
||
2327 | Serge | 7479 | |
2330 | Serge | 7480 | /* Swap pipes & planes for FBC on pre-965 */ |
7481 | intel_crtc->pipe = pipe; |
||
7482 | intel_crtc->plane = pipe; |
||
7483 | if (IS_MOBILE(dev) && IS_GEN3(dev)) { |
||
7484 | DRM_DEBUG_KMS("swapping pipes & planes for FBC\n"); |
||
7485 | intel_crtc->plane = !pipe; |
||
7486 | } |
||
2327 | Serge | 7487 | |
2330 | Serge | 7488 | BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) || |
7489 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL); |
||
7490 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base; |
||
7491 | dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base; |
||
2327 | Serge | 7492 | |
2330 | Serge | 7493 | intel_crtc->bpp = 24; /* default for pre-Ironlake */ |
2327 | Serge | 7494 | |
2330 | Serge | 7495 | drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); |
2327 | Serge | 7496 | |
3037 | serge | 7497 | DRM_DEBUG_KMS("CRTC %d mode %x FB %x enable %d\n", |
3031 | serge | 7498 | intel_crtc->base.base.id, intel_crtc->base.mode, |
7499 | intel_crtc->base.fb, intel_crtc->base.enabled); |
||
2327 | Serge | 7500 | |
2330 | Serge | 7501 | } |
2327 | Serge | 7502 | |
3031 | serge | 7503 | int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, |
7504 | struct drm_file *file) |
||
7505 | { |
||
7506 | struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; |
||
7507 | struct drm_mode_object *drmmode_obj; |
||
7508 | struct intel_crtc *crtc; |
||
2327 | Serge | 7509 | |
3031 | serge | 7510 | drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id, |
7511 | DRM_MODE_OBJECT_CRTC); |
||
2327 | Serge | 7512 | |
3031 | serge | 7513 | if (!drmmode_obj) { |
7514 | DRM_ERROR("no such CRTC id\n"); |
||
7515 | return -EINVAL; |
||
7516 | } |
||
2327 | Serge | 7517 | |
3031 | serge | 7518 | crtc = to_intel_crtc(obj_to_crtc(drmmode_obj)); |
7519 | pipe_from_crtc_id->pipe = crtc->pipe; |
||
2327 | Serge | 7520 | |
3031 | serge | 7521 | return 0; |
7522 | } |
||
2327 | Serge | 7523 | |
3031 | serge | 7524 | static int intel_encoder_clones(struct intel_encoder *encoder) |
2330 | Serge | 7525 | { |
3031 | serge | 7526 | struct drm_device *dev = encoder->base.dev; |
7527 | struct intel_encoder *source_encoder; |
||
2330 | Serge | 7528 | int index_mask = 0; |
7529 | int entry = 0; |
||
2327 | Serge | 7530 | |
3031 | serge | 7531 | list_for_each_entry(source_encoder, |
7532 | &dev->mode_config.encoder_list, base.head) { |
||
7533 | |||
7534 | if (encoder == source_encoder) |
||
2330 | Serge | 7535 | index_mask |= (1 << entry); |
3031 | serge | 7536 | |
7537 | /* Intel hw has only one MUX where enocoders could be cloned. */ |
||
7538 | if (encoder->cloneable && source_encoder->cloneable) |
||
7539 | index_mask |= (1 << entry); |
||
7540 | |||
2330 | Serge | 7541 | entry++; |
7542 | } |
||
2327 | Serge | 7543 | |
2330 | Serge | 7544 | return index_mask; |
7545 | } |
||
2327 | Serge | 7546 | |
2330 | Serge | 7547 | static bool has_edp_a(struct drm_device *dev) |
7548 | { |
||
7549 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2327 | Serge | 7550 | |
2330 | Serge | 7551 | if (!IS_MOBILE(dev)) |
7552 | return false; |
||
2327 | Serge | 7553 | |
2330 | Serge | 7554 | if ((I915_READ(DP_A) & DP_DETECTED) == 0) |
7555 | return false; |
||
2327 | Serge | 7556 | |
2330 | Serge | 7557 | if (IS_GEN5(dev) && |
7558 | (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE)) |
||
7559 | return false; |
||
2327 | Serge | 7560 | |
2330 | Serge | 7561 | return true; |
7562 | } |
||
2327 | Serge | 7563 | |
2330 | Serge | 7564 | static void intel_setup_outputs(struct drm_device *dev) |
7565 | { |
||
7566 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
7567 | struct intel_encoder *encoder; |
||
7568 | bool dpd_is_edp = false; |
||
3031 | serge | 7569 | bool has_lvds; |
2327 | Serge | 7570 | |
2330 | Serge | 7571 | has_lvds = intel_lvds_init(dev); |
7572 | if (!has_lvds && !HAS_PCH_SPLIT(dev)) { |
||
7573 | /* disable the panel fitter on everything but LVDS */ |
||
7574 | I915_WRITE(PFIT_CONTROL, 0); |
||
7575 | } |
||
2327 | Serge | 7576 | |
2330 | Serge | 7577 | if (HAS_PCH_SPLIT(dev)) { |
7578 | dpd_is_edp = intel_dpd_is_edp(dev); |
||
2327 | Serge | 7579 | |
2330 | Serge | 7580 | if (has_edp_a(dev)) |
3031 | serge | 7581 | intel_dp_init(dev, DP_A, PORT_A); |
2327 | Serge | 7582 | |
2330 | Serge | 7583 | if (dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED)) |
3031 | serge | 7584 | intel_dp_init(dev, PCH_DP_D, PORT_D); |
2330 | Serge | 7585 | } |
2327 | Serge | 7586 | |
2330 | Serge | 7587 | intel_crt_init(dev); |
2327 | Serge | 7588 | |
3031 | serge | 7589 | if (IS_HASWELL(dev)) { |
2330 | Serge | 7590 | int found; |
2327 | Serge | 7591 | |
3031 | serge | 7592 | /* Haswell uses DDI functions to detect digital outputs */ |
7593 | found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED; |
||
7594 | /* DDI A only supports eDP */ |
||
7595 | if (found) |
||
7596 | intel_ddi_init(dev, PORT_A); |
||
7597 | |||
7598 | /* DDI B, C and D detection is indicated by the SFUSE_STRAP |
||
7599 | * register */ |
||
7600 | found = I915_READ(SFUSE_STRAP); |
||
7601 | |||
7602 | if (found & SFUSE_STRAP_DDIB_DETECTED) |
||
7603 | intel_ddi_init(dev, PORT_B); |
||
7604 | if (found & SFUSE_STRAP_DDIC_DETECTED) |
||
7605 | intel_ddi_init(dev, PORT_C); |
||
7606 | if (found & SFUSE_STRAP_DDID_DETECTED) |
||
7607 | intel_ddi_init(dev, PORT_D); |
||
7608 | } else if (HAS_PCH_SPLIT(dev)) { |
||
7609 | int found; |
||
7610 | |||
2330 | Serge | 7611 | if (I915_READ(HDMIB) & PORT_DETECTED) { |
7612 | /* PCH SDVOB multiplex with HDMIB */ |
||
3031 | serge | 7613 | found = intel_sdvo_init(dev, PCH_SDVOB, true); |
2330 | Serge | 7614 | if (!found) |
3031 | serge | 7615 | intel_hdmi_init(dev, HDMIB, PORT_B); |
2330 | Serge | 7616 | if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) |
3031 | serge | 7617 | intel_dp_init(dev, PCH_DP_B, PORT_B); |
2330 | Serge | 7618 | } |
2327 | Serge | 7619 | |
2330 | Serge | 7620 | if (I915_READ(HDMIC) & PORT_DETECTED) |
3031 | serge | 7621 | intel_hdmi_init(dev, HDMIC, PORT_C); |
2327 | Serge | 7622 | |
3031 | serge | 7623 | if (!dpd_is_edp && I915_READ(HDMID) & PORT_DETECTED) |
7624 | intel_hdmi_init(dev, HDMID, PORT_D); |
||
2327 | Serge | 7625 | |
2330 | Serge | 7626 | if (I915_READ(PCH_DP_C) & DP_DETECTED) |
3031 | serge | 7627 | intel_dp_init(dev, PCH_DP_C, PORT_C); |
2327 | Serge | 7628 | |
2330 | Serge | 7629 | if (!dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED)) |
3031 | serge | 7630 | intel_dp_init(dev, PCH_DP_D, PORT_D); |
7631 | } else if (IS_VALLEYVIEW(dev)) { |
||
7632 | int found; |
||
2327 | Serge | 7633 | |
3031 | serge | 7634 | if (I915_READ(SDVOB) & PORT_DETECTED) { |
7635 | /* SDVOB multiplex with HDMIB */ |
||
7636 | found = intel_sdvo_init(dev, SDVOB, true); |
||
7637 | if (!found) |
||
7638 | intel_hdmi_init(dev, SDVOB, PORT_B); |
||
7639 | if (!found && (I915_READ(DP_B) & DP_DETECTED)) |
||
7640 | intel_dp_init(dev, DP_B, PORT_B); |
||
7641 | } |
||
7642 | |||
7643 | if (I915_READ(SDVOC) & PORT_DETECTED) |
||
7644 | intel_hdmi_init(dev, SDVOC, PORT_C); |
||
7645 | |||
7646 | /* Shares lanes with HDMI on SDVOC */ |
||
7647 | if (I915_READ(DP_C) & DP_DETECTED) |
||
7648 | intel_dp_init(dev, DP_C, PORT_C); |
||
2330 | Serge | 7649 | } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) { |
7650 | bool found = false; |
||
2327 | Serge | 7651 | |
2330 | Serge | 7652 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
7653 | DRM_DEBUG_KMS("probing SDVOB\n"); |
||
3031 | serge | 7654 | found = intel_sdvo_init(dev, SDVOB, true); |
2330 | Serge | 7655 | if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) { |
7656 | DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); |
||
3031 | serge | 7657 | intel_hdmi_init(dev, SDVOB, PORT_B); |
2330 | Serge | 7658 | } |
2327 | Serge | 7659 | |
2330 | Serge | 7660 | if (!found && SUPPORTS_INTEGRATED_DP(dev)) { |
7661 | DRM_DEBUG_KMS("probing DP_B\n"); |
||
3031 | serge | 7662 | intel_dp_init(dev, DP_B, PORT_B); |
2330 | Serge | 7663 | } |
7664 | } |
||
2327 | Serge | 7665 | |
2330 | Serge | 7666 | /* Before G4X SDVOC doesn't have its own detect register */ |
2327 | Serge | 7667 | |
2330 | Serge | 7668 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
7669 | DRM_DEBUG_KMS("probing SDVOC\n"); |
||
3031 | serge | 7670 | found = intel_sdvo_init(dev, SDVOC, false); |
2330 | Serge | 7671 | } |
2327 | Serge | 7672 | |
2330 | Serge | 7673 | if (!found && (I915_READ(SDVOC) & SDVO_DETECTED)) { |
2327 | Serge | 7674 | |
2330 | Serge | 7675 | if (SUPPORTS_INTEGRATED_HDMI(dev)) { |
7676 | DRM_DEBUG_KMS("probing HDMI on SDVOC\n"); |
||
3031 | serge | 7677 | intel_hdmi_init(dev, SDVOC, PORT_C); |
2330 | Serge | 7678 | } |
7679 | if (SUPPORTS_INTEGRATED_DP(dev)) { |
||
7680 | DRM_DEBUG_KMS("probing DP_C\n"); |
||
3031 | serge | 7681 | intel_dp_init(dev, DP_C, PORT_C); |
2330 | Serge | 7682 | } |
7683 | } |
||
2327 | Serge | 7684 | |
2330 | Serge | 7685 | if (SUPPORTS_INTEGRATED_DP(dev) && |
7686 | (I915_READ(DP_D) & DP_DETECTED)) { |
||
7687 | DRM_DEBUG_KMS("probing DP_D\n"); |
||
3031 | serge | 7688 | intel_dp_init(dev, DP_D, PORT_D); |
2330 | Serge | 7689 | } |
7690 | } else if (IS_GEN2(dev)) |
||
7691 | intel_dvo_init(dev); |
||
2327 | Serge | 7692 | |
2330 | Serge | 7693 | // if (SUPPORTS_TV(dev)) |
7694 | // intel_tv_init(dev); |
||
2327 | Serge | 7695 | |
2330 | Serge | 7696 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
7697 | encoder->base.possible_crtcs = encoder->crtc_mask; |
||
7698 | encoder->base.possible_clones = |
||
3031 | serge | 7699 | intel_encoder_clones(encoder); |
2330 | Serge | 7700 | } |
2327 | Serge | 7701 | |
3031 | serge | 7702 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) |
2342 | Serge | 7703 | ironlake_init_pch_refclk(dev); |
2330 | Serge | 7704 | } |
7705 | |||
7706 | |||
7707 | |||
2335 | Serge | 7708 | static const struct drm_framebuffer_funcs intel_fb_funcs = { |
7709 | // .destroy = intel_user_framebuffer_destroy, |
||
7710 | // .create_handle = intel_user_framebuffer_create_handle, |
||
7711 | }; |
||
2327 | Serge | 7712 | |
2335 | Serge | 7713 | int intel_framebuffer_init(struct drm_device *dev, |
7714 | struct intel_framebuffer *intel_fb, |
||
2342 | Serge | 7715 | struct drm_mode_fb_cmd2 *mode_cmd, |
2335 | Serge | 7716 | struct drm_i915_gem_object *obj) |
7717 | { |
||
7718 | int ret; |
||
2327 | Serge | 7719 | |
2335 | Serge | 7720 | if (obj->tiling_mode == I915_TILING_Y) |
7721 | return -EINVAL; |
||
2327 | Serge | 7722 | |
2342 | Serge | 7723 | if (mode_cmd->pitches[0] & 63) |
2335 | Serge | 7724 | return -EINVAL; |
2327 | Serge | 7725 | |
2342 | Serge | 7726 | switch (mode_cmd->pixel_format) { |
7727 | case DRM_FORMAT_RGB332: |
||
7728 | case DRM_FORMAT_RGB565: |
||
7729 | case DRM_FORMAT_XRGB8888: |
||
3031 | serge | 7730 | case DRM_FORMAT_XBGR8888: |
2342 | Serge | 7731 | case DRM_FORMAT_ARGB8888: |
7732 | case DRM_FORMAT_XRGB2101010: |
||
7733 | case DRM_FORMAT_ARGB2101010: |
||
7734 | /* RGB formats are common across chipsets */ |
||
2335 | Serge | 7735 | break; |
2342 | Serge | 7736 | case DRM_FORMAT_YUYV: |
7737 | case DRM_FORMAT_UYVY: |
||
7738 | case DRM_FORMAT_YVYU: |
||
7739 | case DRM_FORMAT_VYUY: |
||
7740 | break; |
||
2335 | Serge | 7741 | default: |
3031 | serge | 7742 | DRM_DEBUG_KMS("unsupported pixel format %u\n", |
7743 | mode_cmd->pixel_format); |
||
2335 | Serge | 7744 | return -EINVAL; |
7745 | } |
||
2327 | Serge | 7746 | |
2335 | Serge | 7747 | ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); |
7748 | if (ret) { |
||
7749 | DRM_ERROR("framebuffer init failed %d\n", ret); |
||
7750 | return ret; |
||
7751 | } |
||
2327 | Serge | 7752 | |
2335 | Serge | 7753 | drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); |
7754 | intel_fb->obj = obj; |
||
7755 | return 0; |
||
7756 | } |
||
2327 | Serge | 7757 | |
7758 | |||
2360 | Serge | 7759 | static const struct drm_mode_config_funcs intel_mode_funcs = { |
7760 | .fb_create = NULL /*intel_user_framebuffer_create*/, |
||
7761 | .output_poll_changed = NULL /*intel_fb_output_poll_changed*/, |
||
7762 | }; |
||
2327 | Serge | 7763 | |
3031 | serge | 7764 | /* Set up chip specific display functions */ |
7765 | static void intel_init_display(struct drm_device *dev) |
||
7766 | { |
||
7767 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2327 | Serge | 7768 | |
3031 | serge | 7769 | /* We always want a DPMS function */ |
7770 | if (HAS_PCH_SPLIT(dev)) { |
||
7771 | dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set; |
||
7772 | dev_priv->display.crtc_enable = ironlake_crtc_enable; |
||
7773 | dev_priv->display.crtc_disable = ironlake_crtc_disable; |
||
7774 | dev_priv->display.off = ironlake_crtc_off; |
||
7775 | dev_priv->display.update_plane = ironlake_update_plane; |
||
7776 | } else { |
||
7777 | dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set; |
||
7778 | dev_priv->display.crtc_enable = i9xx_crtc_enable; |
||
7779 | dev_priv->display.crtc_disable = i9xx_crtc_disable; |
||
7780 | dev_priv->display.off = i9xx_crtc_off; |
||
7781 | dev_priv->display.update_plane = i9xx_update_plane; |
||
7782 | } |
||
2327 | Serge | 7783 | |
3031 | serge | 7784 | /* Returns the core display clock speed */ |
7785 | if (IS_VALLEYVIEW(dev)) |
||
7786 | dev_priv->display.get_display_clock_speed = |
||
7787 | valleyview_get_display_clock_speed; |
||
7788 | else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev))) |
||
7789 | dev_priv->display.get_display_clock_speed = |
||
7790 | i945_get_display_clock_speed; |
||
7791 | else if (IS_I915G(dev)) |
||
7792 | dev_priv->display.get_display_clock_speed = |
||
7793 | i915_get_display_clock_speed; |
||
7794 | else if (IS_I945GM(dev) || IS_845G(dev) || IS_PINEVIEW_M(dev)) |
||
7795 | dev_priv->display.get_display_clock_speed = |
||
7796 | i9xx_misc_get_display_clock_speed; |
||
7797 | else if (IS_I915GM(dev)) |
||
7798 | dev_priv->display.get_display_clock_speed = |
||
7799 | i915gm_get_display_clock_speed; |
||
7800 | else if (IS_I865G(dev)) |
||
7801 | dev_priv->display.get_display_clock_speed = |
||
7802 | i865_get_display_clock_speed; |
||
7803 | else if (IS_I85X(dev)) |
||
7804 | dev_priv->display.get_display_clock_speed = |
||
7805 | i855_get_display_clock_speed; |
||
7806 | else /* 852, 830 */ |
||
7807 | dev_priv->display.get_display_clock_speed = |
||
7808 | i830_get_display_clock_speed; |
||
2327 | Serge | 7809 | |
3031 | serge | 7810 | if (HAS_PCH_SPLIT(dev)) { |
7811 | if (IS_GEN5(dev)) { |
||
7812 | dev_priv->display.fdi_link_train = ironlake_fdi_link_train; |
||
7813 | dev_priv->display.write_eld = ironlake_write_eld; |
||
7814 | } else if (IS_GEN6(dev)) { |
||
7815 | dev_priv->display.fdi_link_train = gen6_fdi_link_train; |
||
7816 | dev_priv->display.write_eld = ironlake_write_eld; |
||
7817 | } else if (IS_IVYBRIDGE(dev)) { |
||
7818 | /* FIXME: detect B0+ stepping and use auto training */ |
||
7819 | dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train; |
||
7820 | dev_priv->display.write_eld = ironlake_write_eld; |
||
7821 | } else if (IS_HASWELL(dev)) { |
||
7822 | dev_priv->display.fdi_link_train = hsw_fdi_link_train; |
||
7823 | dev_priv->display.write_eld = haswell_write_eld; |
||
7824 | } else |
||
7825 | dev_priv->display.update_wm = NULL; |
||
7826 | } else if (IS_G4X(dev)) { |
||
7827 | dev_priv->display.write_eld = g4x_write_eld; |
||
7828 | } |
||
2327 | Serge | 7829 | |
3031 | serge | 7830 | /* Default just returns -ENODEV to indicate unsupported */ |
7831 | // dev_priv->display.queue_flip = intel_default_queue_flip; |
||
2327 | Serge | 7832 | |
7833 | |||
7834 | |||
7835 | |||
3031 | serge | 7836 | } |
7837 | |||
7838 | /* |
||
7839 | * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend, |
||
7840 | * resume, or other times. This quirk makes sure that's the case for |
||
7841 | * affected systems. |
||
7842 | */ |
||
7843 | static void quirk_pipea_force(struct drm_device *dev) |
||
2330 | Serge | 7844 | { |
7845 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2327 | Serge | 7846 | |
3031 | serge | 7847 | dev_priv->quirks |= QUIRK_PIPEA_FORCE; |
7848 | DRM_INFO("applying pipe a force quirk\n"); |
||
7849 | } |
||
2327 | Serge | 7850 | |
3031 | serge | 7851 | /* |
7852 | * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason |
||
7853 | */ |
||
7854 | static void quirk_ssc_force_disable(struct drm_device *dev) |
||
7855 | { |
||
7856 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
7857 | dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE; |
||
7858 | DRM_INFO("applying lvds SSC disable quirk\n"); |
||
2330 | Serge | 7859 | } |
2327 | Serge | 7860 | |
3031 | serge | 7861 | /* |
7862 | * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight |
||
7863 | * brightness value |
||
7864 | */ |
||
7865 | static void quirk_invert_brightness(struct drm_device *dev) |
||
2330 | Serge | 7866 | { |
7867 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3031 | serge | 7868 | dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS; |
7869 | DRM_INFO("applying inverted panel brightness quirk\n"); |
||
7870 | } |
||
2327 | Serge | 7871 | |
3031 | serge | 7872 | struct intel_quirk { |
7873 | int device; |
||
7874 | int subsystem_vendor; |
||
7875 | int subsystem_device; |
||
7876 | void (*hook)(struct drm_device *dev); |
||
7877 | }; |
||
2327 | Serge | 7878 | |
3031 | serge | 7879 | /* For systems that don't have a meaningful PCI subdevice/subvendor ID */ |
7880 | struct intel_dmi_quirk { |
||
7881 | void (*hook)(struct drm_device *dev); |
||
7882 | const struct dmi_system_id (*dmi_id_list)[]; |
||
7883 | }; |
||
2327 | Serge | 7884 | |
3031 | serge | 7885 | static int intel_dmi_reverse_brightness(const struct dmi_system_id *id) |
7886 | { |
||
7887 | DRM_INFO("Backlight polarity reversed on %s\n", id->ident); |
||
7888 | return 1; |
||
2330 | Serge | 7889 | } |
2327 | Serge | 7890 | |
3031 | serge | 7891 | static const struct intel_dmi_quirk intel_dmi_quirks[] = { |
7892 | { |
||
7893 | .dmi_id_list = &(const struct dmi_system_id[]) { |
||
7894 | { |
||
7895 | .callback = intel_dmi_reverse_brightness, |
||
7896 | .ident = "NCR Corporation", |
||
7897 | .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"), |
||
7898 | DMI_MATCH(DMI_PRODUCT_NAME, ""), |
||
7899 | }, |
||
7900 | }, |
||
7901 | { } /* terminating entry */ |
||
7902 | }, |
||
7903 | .hook = quirk_invert_brightness, |
||
7904 | }, |
||
7905 | }; |
||
2327 | Serge | 7906 | |
3031 | serge | 7907 | static struct intel_quirk intel_quirks[] = { |
7908 | /* HP Mini needs pipe A force quirk (LP: #322104) */ |
||
7909 | { 0x27ae, 0x103c, 0x361a, quirk_pipea_force }, |
||
2327 | Serge | 7910 | |
3031 | serge | 7911 | /* Toshiba Protege R-205, S-209 needs pipe A force quirk */ |
7912 | { 0x2592, 0x1179, 0x0001, quirk_pipea_force }, |
||
2327 | Serge | 7913 | |
3031 | serge | 7914 | /* ThinkPad T60 needs pipe A force quirk (bug #16494) */ |
7915 | { 0x2782, 0x17aa, 0x201a, quirk_pipea_force }, |
||
2327 | Serge | 7916 | |
3031 | serge | 7917 | /* 830/845 need to leave pipe A & dpll A up */ |
7918 | { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, |
||
7919 | { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, |
||
2327 | Serge | 7920 | |
3031 | serge | 7921 | /* Lenovo U160 cannot use SSC on LVDS */ |
7922 | { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable }, |
||
2327 | Serge | 7923 | |
3031 | serge | 7924 | /* Sony Vaio Y cannot use SSC on LVDS */ |
7925 | { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable }, |
||
2327 | Serge | 7926 | |
3031 | serge | 7927 | /* Acer Aspire 5734Z must invert backlight brightness */ |
7928 | { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness }, |
||
7929 | }; |
||
2327 | Serge | 7930 | |
3031 | serge | 7931 | static void intel_init_quirks(struct drm_device *dev) |
2330 | Serge | 7932 | { |
3031 | serge | 7933 | struct pci_dev *d = dev->pdev; |
7934 | int i; |
||
2327 | Serge | 7935 | |
3031 | serge | 7936 | for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { |
7937 | struct intel_quirk *q = &intel_quirks[i]; |
||
2327 | Serge | 7938 | |
3031 | serge | 7939 | if (d->device == q->device && |
7940 | (d->subsystem_vendor == q->subsystem_vendor || |
||
7941 | q->subsystem_vendor == PCI_ANY_ID) && |
||
7942 | (d->subsystem_device == q->subsystem_device || |
||
7943 | q->subsystem_device == PCI_ANY_ID)) |
||
7944 | q->hook(dev); |
||
7945 | } |
||
7946 | // for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) { |
||
7947 | // if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0) |
||
7948 | // intel_dmi_quirks[i].hook(dev); |
||
7949 | // } |
||
2330 | Serge | 7950 | } |
2327 | Serge | 7951 | |
3031 | serge | 7952 | /* Disable the VGA plane that we never use */ |
7953 | static void i915_disable_vga(struct drm_device *dev) |
||
2330 | Serge | 7954 | { |
7955 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3031 | serge | 7956 | u8 sr1; |
7957 | u32 vga_reg; |
||
2327 | Serge | 7958 | |
3031 | serge | 7959 | if (HAS_PCH_SPLIT(dev)) |
7960 | vga_reg = CPU_VGACNTRL; |
||
7961 | else |
||
7962 | vga_reg = VGACNTRL; |
||
2327 | Serge | 7963 | |
3031 | serge | 7964 | // vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO); |
7965 | out8(SR01, VGA_SR_INDEX); |
||
7966 | sr1 = in8(VGA_SR_DATA); |
||
7967 | out8(sr1 | 1<<5, VGA_SR_DATA); |
||
7968 | // vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); |
||
7969 | udelay(300); |
||
2327 | Serge | 7970 | |
3031 | serge | 7971 | I915_WRITE(vga_reg, VGA_DISP_DISABLE); |
7972 | POSTING_READ(vga_reg); |
||
2330 | Serge | 7973 | } |
7974 | |||
3031 | serge | 7975 | void intel_modeset_init_hw(struct drm_device *dev) |
2342 | Serge | 7976 | { |
3031 | serge | 7977 | /* We attempt to init the necessary power wells early in the initialization |
7978 | * time, so the subsystems that expect power to be enabled can work. |
||
2342 | Serge | 7979 | */ |
3031 | serge | 7980 | intel_init_power_wells(dev); |
2342 | Serge | 7981 | |
3031 | serge | 7982 | intel_prepare_ddi(dev); |
2342 | Serge | 7983 | |
3031 | serge | 7984 | intel_init_clock_gating(dev); |
7985 | |||
7986 | // mutex_lock(&dev->struct_mutex); |
||
7987 | // intel_enable_gt_powersave(dev); |
||
7988 | // mutex_unlock(&dev->struct_mutex); |
||
2342 | Serge | 7989 | } |
7990 | |||
3031 | serge | 7991 | void intel_modeset_init(struct drm_device *dev) |
2330 | Serge | 7992 | { |
3031 | serge | 7993 | struct drm_i915_private *dev_priv = dev->dev_private; |
7994 | int i, ret; |
||
2330 | Serge | 7995 | |
3031 | serge | 7996 | drm_mode_config_init(dev); |
2330 | Serge | 7997 | |
3031 | serge | 7998 | dev->mode_config.min_width = 0; |
7999 | dev->mode_config.min_height = 0; |
||
2330 | Serge | 8000 | |
3031 | serge | 8001 | dev->mode_config.preferred_depth = 24; |
8002 | dev->mode_config.prefer_shadow = 1; |
||
2330 | Serge | 8003 | |
3031 | serge | 8004 | dev->mode_config.funcs = &intel_mode_funcs; |
2330 | Serge | 8005 | |
3031 | serge | 8006 | intel_init_quirks(dev); |
2330 | Serge | 8007 | |
3031 | serge | 8008 | intel_init_pm(dev); |
2330 | Serge | 8009 | |
3031 | serge | 8010 | intel_init_display(dev); |
2330 | Serge | 8011 | |
3031 | serge | 8012 | if (IS_GEN2(dev)) { |
8013 | dev->mode_config.max_width = 2048; |
||
8014 | dev->mode_config.max_height = 2048; |
||
8015 | } else if (IS_GEN3(dev)) { |
||
8016 | dev->mode_config.max_width = 4096; |
||
8017 | dev->mode_config.max_height = 4096; |
||
8018 | } else { |
||
8019 | dev->mode_config.max_width = 8192; |
||
8020 | dev->mode_config.max_height = 8192; |
||
8021 | } |
||
8022 | dev->mode_config.fb_base = dev_priv->mm.gtt_base_addr; |
||
2330 | Serge | 8023 | |
3031 | serge | 8024 | DRM_DEBUG_KMS("%d display pipe%s available.\n", |
8025 | dev_priv->num_pipe, dev_priv->num_pipe > 1 ? "s" : ""); |
||
2330 | Serge | 8026 | |
3031 | serge | 8027 | for (i = 0; i < dev_priv->num_pipe; i++) { |
8028 | intel_crtc_init(dev, i); |
||
8029 | ret = intel_plane_init(dev, i); |
||
8030 | if (ret) |
||
8031 | DRM_DEBUG_KMS("plane %d init failed: %d\n", i, ret); |
||
2330 | Serge | 8032 | } |
8033 | |||
3031 | serge | 8034 | intel_pch_pll_init(dev); |
2330 | Serge | 8035 | |
3031 | serge | 8036 | /* Just disable it once at startup */ |
8037 | i915_disable_vga(dev); |
||
8038 | intel_setup_outputs(dev); |
||
8039 | } |
||
2330 | Serge | 8040 | |
3031 | serge | 8041 | static void |
8042 | intel_connector_break_all_links(struct intel_connector *connector) |
||
8043 | { |
||
8044 | connector->base.dpms = DRM_MODE_DPMS_OFF; |
||
8045 | connector->base.encoder = NULL; |
||
8046 | connector->encoder->connectors_active = false; |
||
8047 | connector->encoder->base.crtc = NULL; |
||
2330 | Serge | 8048 | } |
8049 | |||
3031 | serge | 8050 | static void intel_enable_pipe_a(struct drm_device *dev) |
2330 | Serge | 8051 | { |
3031 | serge | 8052 | struct intel_connector *connector; |
8053 | struct drm_connector *crt = NULL; |
||
8054 | struct intel_load_detect_pipe load_detect_temp; |
||
2330 | Serge | 8055 | |
3031 | serge | 8056 | /* We can't just switch on the pipe A, we need to set things up with a |
8057 | * proper mode and output configuration. As a gross hack, enable pipe A |
||
8058 | * by enabling the load detect pipe once. */ |
||
8059 | list_for_each_entry(connector, |
||
8060 | &dev->mode_config.connector_list, |
||
8061 | base.head) { |
||
8062 | if (connector->encoder->type == INTEL_OUTPUT_ANALOG) { |
||
8063 | crt = &connector->base; |
||
8064 | break; |
||
2330 | Serge | 8065 | } |
8066 | } |
||
8067 | |||
3031 | serge | 8068 | if (!crt) |
8069 | return; |
||
2330 | Serge | 8070 | |
3031 | serge | 8071 | if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp)) |
8072 | intel_release_load_detect_pipe(crt, &load_detect_temp); |
||
2327 | Serge | 8073 | |
8074 | |||
8075 | } |
||
8076 | |||
3031 | serge | 8077 | static bool |
8078 | intel_check_plane_mapping(struct intel_crtc *crtc) |
||
2327 | Serge | 8079 | { |
3031 | serge | 8080 | struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; |
8081 | u32 reg, val; |
||
2327 | Serge | 8082 | |
3031 | serge | 8083 | if (dev_priv->num_pipe == 1) |
8084 | return true; |
||
2327 | Serge | 8085 | |
3031 | serge | 8086 | reg = DSPCNTR(!crtc->plane); |
8087 | val = I915_READ(reg); |
||
2327 | Serge | 8088 | |
3031 | serge | 8089 | if ((val & DISPLAY_PLANE_ENABLE) && |
8090 | (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe)) |
||
8091 | return false; |
||
2327 | Serge | 8092 | |
3031 | serge | 8093 | return true; |
2327 | Serge | 8094 | } |
8095 | |||
3031 | serge | 8096 | static void intel_sanitize_crtc(struct intel_crtc *crtc) |
2327 | Serge | 8097 | { |
3031 | serge | 8098 | struct drm_device *dev = crtc->base.dev; |
2327 | Serge | 8099 | struct drm_i915_private *dev_priv = dev->dev_private; |
3031 | serge | 8100 | u32 reg; |
2327 | Serge | 8101 | |
3031 | serge | 8102 | /* Clear any frame start delays used for debugging left by the BIOS */ |
8103 | reg = PIPECONF(crtc->pipe); |
||
8104 | I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK); |
||
2327 | Serge | 8105 | |
3031 | serge | 8106 | /* We need to sanitize the plane -> pipe mapping first because this will |
8107 | * disable the crtc (and hence change the state) if it is wrong. Note |
||
8108 | * that gen4+ has a fixed plane -> pipe mapping. */ |
||
8109 | if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) { |
||
8110 | struct intel_connector *connector; |
||
8111 | bool plane; |
||
2327 | Serge | 8112 | |
3031 | serge | 8113 | DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n", |
8114 | crtc->base.base.id); |
||
2327 | Serge | 8115 | |
3031 | serge | 8116 | /* Pipe has the wrong plane attached and the plane is active. |
8117 | * Temporarily change the plane mapping and disable everything |
||
8118 | * ... */ |
||
8119 | plane = crtc->plane; |
||
8120 | crtc->plane = !plane; |
||
8121 | dev_priv->display.crtc_disable(&crtc->base); |
||
8122 | crtc->plane = plane; |
||
2342 | Serge | 8123 | |
3031 | serge | 8124 | /* ... and break all links. */ |
8125 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
||
8126 | base.head) { |
||
8127 | if (connector->encoder->base.crtc != &crtc->base) |
||
8128 | continue; |
||
2327 | Serge | 8129 | |
3031 | serge | 8130 | intel_connector_break_all_links(connector); |
8131 | } |
||
2327 | Serge | 8132 | |
3031 | serge | 8133 | WARN_ON(crtc->active); |
8134 | crtc->base.enabled = false; |
||
8135 | } |
||
2327 | Serge | 8136 | |
3031 | serge | 8137 | if (dev_priv->quirks & QUIRK_PIPEA_FORCE && |
8138 | crtc->pipe == PIPE_A && !crtc->active) { |
||
8139 | /* BIOS forgot to enable pipe A, this mostly happens after |
||
8140 | * resume. Force-enable the pipe to fix this, the update_dpms |
||
8141 | * call below we restore the pipe to the right state, but leave |
||
8142 | * the required bits on. */ |
||
8143 | intel_enable_pipe_a(dev); |
||
8144 | } |
||
2327 | Serge | 8145 | |
3031 | serge | 8146 | /* Adjust the state of the output pipe according to whether we |
8147 | * have active connectors/encoders. */ |
||
8148 | intel_crtc_update_dpms(&crtc->base); |
||
2327 | Serge | 8149 | |
3031 | serge | 8150 | if (crtc->active != crtc->base.enabled) { |
8151 | struct intel_encoder *encoder; |
||
2327 | Serge | 8152 | |
3031 | serge | 8153 | /* This can happen either due to bugs in the get_hw_state |
8154 | * functions or because the pipe is force-enabled due to the |
||
8155 | * pipe A quirk. */ |
||
8156 | DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n", |
||
8157 | crtc->base.base.id, |
||
8158 | crtc->base.enabled ? "enabled" : "disabled", |
||
8159 | crtc->active ? "enabled" : "disabled"); |
||
2327 | Serge | 8160 | |
3031 | serge | 8161 | crtc->base.enabled = crtc->active; |
2327 | Serge | 8162 | |
3031 | serge | 8163 | /* Because we only establish the connector -> encoder -> |
8164 | * crtc links if something is active, this means the |
||
8165 | * crtc is now deactivated. Break the links. connector |
||
8166 | * -> encoder links are only establish when things are |
||
8167 | * actually up, hence no need to break them. */ |
||
8168 | WARN_ON(crtc->active); |
||
2327 | Serge | 8169 | |
3031 | serge | 8170 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) { |
8171 | WARN_ON(encoder->connectors_active); |
||
8172 | encoder->base.crtc = NULL; |
||
8173 | } |
||
8174 | } |
||
2327 | Serge | 8175 | } |
8176 | |||
3031 | serge | 8177 | static void intel_sanitize_encoder(struct intel_encoder *encoder) |
2327 | Serge | 8178 | { |
3031 | serge | 8179 | struct intel_connector *connector; |
8180 | struct drm_device *dev = encoder->base.dev; |
||
2327 | Serge | 8181 | |
3031 | serge | 8182 | /* We need to check both for a crtc link (meaning that the |
8183 | * encoder is active and trying to read from a pipe) and the |
||
8184 | * pipe itself being active. */ |
||
8185 | bool has_active_crtc = encoder->base.crtc && |
||
8186 | to_intel_crtc(encoder->base.crtc)->active; |
||
2327 | Serge | 8187 | |
3031 | serge | 8188 | if (encoder->connectors_active && !has_active_crtc) { |
8189 | DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n", |
||
8190 | encoder->base.base.id, |
||
8191 | drm_get_encoder_name(&encoder->base)); |
||
2327 | Serge | 8192 | |
3031 | serge | 8193 | /* Connector is active, but has no active pipe. This is |
8194 | * fallout from our resume register restoring. Disable |
||
8195 | * the encoder manually again. */ |
||
8196 | if (encoder->base.crtc) { |
||
8197 | DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n", |
||
8198 | encoder->base.base.id, |
||
8199 | drm_get_encoder_name(&encoder->base)); |
||
8200 | encoder->disable(encoder); |
||
8201 | } |
||
2327 | Serge | 8202 | |
3031 | serge | 8203 | /* Inconsistent output/port/pipe state happens presumably due to |
8204 | * a bug in one of the get_hw_state functions. Or someplace else |
||
8205 | * in our code, like the register restore mess on resume. Clamp |
||
8206 | * things to off as a safer default. */ |
||
8207 | list_for_each_entry(connector, |
||
8208 | &dev->mode_config.connector_list, |
||
8209 | base.head) { |
||
8210 | if (connector->encoder != encoder) |
||
8211 | continue; |
||
2327 | Serge | 8212 | |
3031 | serge | 8213 | intel_connector_break_all_links(connector); |
8214 | } |
||
8215 | } |
||
8216 | /* Enabled encoders without active connectors will be fixed in |
||
8217 | * the crtc fixup. */ |
||
2327 | Serge | 8218 | } |
8219 | |||
3031 | serge | 8220 | /* Scan out the current hw modeset state, sanitizes it and maps it into the drm |
8221 | * and i915 state tracking structures. */ |
||
8222 | void intel_modeset_setup_hw_state(struct drm_device *dev) |
||
2332 | Serge | 8223 | { |
8224 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3031 | serge | 8225 | enum pipe pipe; |
8226 | u32 tmp; |
||
8227 | struct intel_crtc *crtc; |
||
8228 | struct intel_encoder *encoder; |
||
8229 | struct intel_connector *connector; |
||
2327 | Serge | 8230 | |
3031 | serge | 8231 | for_each_pipe(pipe) { |
8232 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); |
||
2327 | Serge | 8233 | |
3031 | serge | 8234 | tmp = I915_READ(PIPECONF(pipe)); |
8235 | if (tmp & PIPECONF_ENABLE) |
||
8236 | crtc->active = true; |
||
8237 | else |
||
8238 | crtc->active = false; |
||
2327 | Serge | 8239 | |
3031 | serge | 8240 | crtc->base.enabled = crtc->active; |
2330 | Serge | 8241 | |
3031 | serge | 8242 | DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n", |
8243 | crtc->base.base.id, |
||
8244 | crtc->active ? "enabled" : "disabled"); |
||
2339 | Serge | 8245 | } |
2332 | Serge | 8246 | |
3031 | serge | 8247 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
8248 | base.head) { |
||
8249 | pipe = 0; |
||
2332 | Serge | 8250 | |
3031 | serge | 8251 | if (encoder->get_hw_state(encoder, &pipe)) { |
8252 | encoder->base.crtc = |
||
8253 | dev_priv->pipe_to_crtc_mapping[pipe]; |
||
8254 | } else { |
||
8255 | encoder->base.crtc = NULL; |
||
8256 | } |
||
2332 | Serge | 8257 | |
3031 | serge | 8258 | encoder->connectors_active = false; |
8259 | DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe=%i\n", |
||
8260 | encoder->base.base.id, |
||
8261 | drm_get_encoder_name(&encoder->base), |
||
8262 | encoder->base.crtc ? "enabled" : "disabled", |
||
8263 | pipe); |
||
8264 | } |
||
2332 | Serge | 8265 | |
3031 | serge | 8266 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
8267 | base.head) { |
||
8268 | if (connector->get_hw_state(connector)) { |
||
8269 | connector->base.dpms = DRM_MODE_DPMS_ON; |
||
8270 | connector->encoder->connectors_active = true; |
||
8271 | connector->base.encoder = &connector->encoder->base; |
||
8272 | } else { |
||
8273 | connector->base.dpms = DRM_MODE_DPMS_OFF; |
||
8274 | connector->base.encoder = NULL; |
||
8275 | } |
||
8276 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n", |
||
8277 | connector->base.base.id, |
||
8278 | drm_get_connector_name(&connector->base), |
||
8279 | connector->base.encoder ? "enabled" : "disabled"); |
||
2332 | Serge | 8280 | } |
8281 | |||
3031 | serge | 8282 | /* HW state is read out, now we need to sanitize this mess. */ |
8283 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, |
||
8284 | base.head) { |
||
8285 | intel_sanitize_encoder(encoder); |
||
2332 | Serge | 8286 | } |
8287 | |||
3031 | serge | 8288 | for_each_pipe(pipe) { |
8289 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); |
||
8290 | intel_sanitize_crtc(crtc); |
||
2332 | Serge | 8291 | } |
8292 | |||
3031 | serge | 8293 | intel_modeset_update_staged_output_state(dev); |
2332 | Serge | 8294 | |
3031 | serge | 8295 | intel_modeset_check_state(dev); |
2332 | Serge | 8296 | } |
8297 | |||
3031 | serge | 8298 | void intel_modeset_gem_init(struct drm_device *dev) |
2330 | Serge | 8299 | { |
3031 | serge | 8300 | intel_modeset_init_hw(dev); |
2330 | Serge | 8301 | |
3031 | serge | 8302 | // intel_setup_overlay(dev); |
2330 | Serge | 8303 | |
3031 | serge | 8304 | intel_modeset_setup_hw_state(dev); |
2330 | Serge | 8305 | } |
8306 | |||
3031 | serge | 8307 | void intel_modeset_cleanup(struct drm_device *dev) |
2327 | Serge | 8308 | { |
3031 | serge | 8309 | #if 0 |
8310 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
8311 | struct drm_crtc *crtc; |
||
8312 | struct intel_crtc *intel_crtc; |
||
2327 | Serge | 8313 | |
3031 | serge | 8314 | // drm_kms_helper_poll_fini(dev); |
8315 | mutex_lock(&dev->struct_mutex); |
||
2327 | Serge | 8316 | |
3031 | serge | 8317 | // intel_unregister_dsm_handler(); |
2327 | Serge | 8318 | |
8319 | |||
3031 | serge | 8320 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
8321 | /* Skip inactive CRTCs */ |
||
8322 | if (!crtc->fb) |
||
8323 | continue; |
||
2342 | Serge | 8324 | |
3031 | serge | 8325 | intel_crtc = to_intel_crtc(crtc); |
8326 | intel_increase_pllclock(crtc); |
||
8327 | } |
||
2342 | Serge | 8328 | |
3031 | serge | 8329 | intel_disable_fbc(dev); |
2342 | Serge | 8330 | |
3031 | serge | 8331 | intel_disable_gt_powersave(dev); |
2342 | Serge | 8332 | |
3031 | serge | 8333 | ironlake_teardown_rc6(dev); |
2327 | Serge | 8334 | |
3031 | serge | 8335 | if (IS_VALLEYVIEW(dev)) |
8336 | vlv_init_dpio(dev); |
||
2327 | Serge | 8337 | |
3031 | serge | 8338 | mutex_unlock(&dev->struct_mutex); |
2327 | Serge | 8339 | |
3031 | serge | 8340 | /* Disable the irq before mode object teardown, for the irq might |
8341 | * enqueue unpin/hotplug work. */ |
||
8342 | // drm_irq_uninstall(dev); |
||
8343 | // cancel_work_sync(&dev_priv->hotplug_work); |
||
8344 | // cancel_work_sync(&dev_priv->rps.work); |
||
2327 | Serge | 8345 | |
3031 | serge | 8346 | /* flush any delayed tasks or pending work */ |
8347 | // flush_scheduled_work(); |
||
2327 | Serge | 8348 | |
3031 | serge | 8349 | drm_mode_config_cleanup(dev); |
2327 | Serge | 8350 | #endif |
8351 | } |
||
8352 | |||
8353 | /* |
||
3031 | serge | 8354 | * Return which encoder is currently attached for connector. |
2327 | Serge | 8355 | */ |
3031 | serge | 8356 | struct drm_encoder *intel_best_encoder(struct drm_connector *connector) |
2327 | Serge | 8357 | { |
3031 | serge | 8358 | return &intel_attached_encoder(connector)->base; |
8359 | } |
||
2327 | Serge | 8360 | |
3031 | serge | 8361 | void intel_connector_attach_encoder(struct intel_connector *connector, |
8362 | struct intel_encoder *encoder) |
||
8363 | { |
||
8364 | connector->encoder = encoder; |
||
8365 | drm_mode_connector_attach_encoder(&connector->base, |
||
8366 | &encoder->base); |
||
2327 | Serge | 8367 | } |
8368 | |||
8369 | /* |
||
3031 | serge | 8370 | * set vga decode state - true == enable VGA decode |
2327 | Serge | 8371 | */ |
3031 | serge | 8372 | int intel_modeset_vga_set_state(struct drm_device *dev, bool state) |
2327 | Serge | 8373 | { |
2330 | Serge | 8374 | struct drm_i915_private *dev_priv = dev->dev_private; |
3031 | serge | 8375 | u16 gmch_ctrl; |
2327 | Serge | 8376 | |
3031 | serge | 8377 | pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl); |
8378 | if (state) |
||
8379 | gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE; |
||
2330 | Serge | 8380 | else |
3031 | serge | 8381 | gmch_ctrl |= INTEL_GMCH_VGA_DISABLE; |
8382 | pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl); |
||
8383 | return 0; |
||
2330 | Serge | 8384 | } |
8385 | |||
3031 | serge | 8386 | #ifdef CONFIG_DEBUG_FS |
8387 | #include |
||
2327 | Serge | 8388 | |
3031 | serge | 8389 | struct intel_display_error_state { |
8390 | struct intel_cursor_error_state { |
||
8391 | u32 control; |
||
8392 | u32 position; |
||
8393 | u32 base; |
||
8394 | u32 size; |
||
8395 | } cursor[I915_MAX_PIPES]; |
||
2327 | Serge | 8396 | |
3031 | serge | 8397 | struct intel_pipe_error_state { |
8398 | u32 conf; |
||
8399 | u32 source; |
||
2327 | Serge | 8400 | |
3031 | serge | 8401 | u32 htotal; |
8402 | u32 hblank; |
||
8403 | u32 hsync; |
||
8404 | u32 vtotal; |
||
8405 | u32 vblank; |
||
8406 | u32 vsync; |
||
8407 | } pipe[I915_MAX_PIPES]; |
||
2327 | Serge | 8408 | |
3031 | serge | 8409 | struct intel_plane_error_state { |
8410 | u32 control; |
||
8411 | u32 stride; |
||
8412 | u32 size; |
||
8413 | u32 pos; |
||
8414 | u32 addr; |
||
8415 | u32 surface; |
||
8416 | u32 tile_offset; |
||
8417 | } plane[I915_MAX_PIPES]; |
||
8418 | }; |
||
2327 | Serge | 8419 | |
3031 | serge | 8420 | struct intel_display_error_state * |
8421 | intel_display_capture_error_state(struct drm_device *dev) |
||
8422 | { |
||
8423 | drm_i915_private_t *dev_priv = dev->dev_private; |
||
8424 | struct intel_display_error_state *error; |
||
8425 | int i; |
||
2327 | Serge | 8426 | |
3031 | serge | 8427 | error = kmalloc(sizeof(*error), GFP_ATOMIC); |
8428 | if (error == NULL) |
||
8429 | return NULL; |
||
2327 | Serge | 8430 | |
3031 | serge | 8431 | for_each_pipe(i) { |
8432 | error->cursor[i].control = I915_READ(CURCNTR(i)); |
||
8433 | error->cursor[i].position = I915_READ(CURPOS(i)); |
||
8434 | error->cursor[i].base = I915_READ(CURBASE(i)); |
||
2327 | Serge | 8435 | |
3031 | serge | 8436 | error->plane[i].control = I915_READ(DSPCNTR(i)); |
8437 | error->plane[i].stride = I915_READ(DSPSTRIDE(i)); |
||
8438 | error->plane[i].size = I915_READ(DSPSIZE(i)); |
||
8439 | error->plane[i].pos = I915_READ(DSPPOS(i)); |
||
8440 | error->plane[i].addr = I915_READ(DSPADDR(i)); |
||
8441 | if (INTEL_INFO(dev)->gen >= 4) { |
||
8442 | error->plane[i].surface = I915_READ(DSPSURF(i)); |
||
8443 | error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i)); |
||
8444 | } |
||
2327 | Serge | 8445 | |
3031 | serge | 8446 | error->pipe[i].conf = I915_READ(PIPECONF(i)); |
8447 | error->pipe[i].source = I915_READ(PIPESRC(i)); |
||
8448 | error->pipe[i].htotal = I915_READ(HTOTAL(i)); |
||
8449 | error->pipe[i].hblank = I915_READ(HBLANK(i)); |
||
8450 | error->pipe[i].hsync = I915_READ(HSYNC(i)); |
||
8451 | error->pipe[i].vtotal = I915_READ(VTOTAL(i)); |
||
8452 | error->pipe[i].vblank = I915_READ(VBLANK(i)); |
||
8453 | error->pipe[i].vsync = I915_READ(VSYNC(i)); |
||
8454 | } |
||
2327 | Serge | 8455 | |
3031 | serge | 8456 | return error; |
2330 | Serge | 8457 | } |
2327 | Serge | 8458 | |
3031 | serge | 8459 | void |
8460 | intel_display_print_error_state(struct seq_file *m, |
||
8461 | struct drm_device *dev, |
||
8462 | struct intel_display_error_state *error) |
||
2332 | Serge | 8463 | { |
3031 | serge | 8464 | drm_i915_private_t *dev_priv = dev->dev_private; |
8465 | int i; |
||
2330 | Serge | 8466 | |
3031 | serge | 8467 | seq_printf(m, "Num Pipes: %d\n", dev_priv->num_pipe); |
8468 | for_each_pipe(i) { |
||
8469 | seq_printf(m, "Pipe [%d]:\n", i); |
||
8470 | seq_printf(m, " CONF: %08x\n", error->pipe[i].conf); |
||
8471 | seq_printf(m, " SRC: %08x\n", error->pipe[i].source); |
||
8472 | seq_printf(m, " HTOTAL: %08x\n", error->pipe[i].htotal); |
||
8473 | seq_printf(m, " HBLANK: %08x\n", error->pipe[i].hblank); |
||
8474 | seq_printf(m, " HSYNC: %08x\n", error->pipe[i].hsync); |
||
8475 | seq_printf(m, " VTOTAL: %08x\n", error->pipe[i].vtotal); |
||
8476 | seq_printf(m, " VBLANK: %08x\n", error->pipe[i].vblank); |
||
8477 | seq_printf(m, " VSYNC: %08x\n", error->pipe[i].vsync); |
||
2332 | Serge | 8478 | |
3031 | serge | 8479 | seq_printf(m, "Plane [%d]:\n", i); |
8480 | seq_printf(m, " CNTR: %08x\n", error->plane[i].control); |
||
8481 | seq_printf(m, " STRIDE: %08x\n", error->plane[i].stride); |
||
8482 | seq_printf(m, " SIZE: %08x\n", error->plane[i].size); |
||
8483 | seq_printf(m, " POS: %08x\n", error->plane[i].pos); |
||
8484 | seq_printf(m, " ADDR: %08x\n", error->plane[i].addr); |
||
8485 | if (INTEL_INFO(dev)->gen >= 4) { |
||
8486 | seq_printf(m, " SURF: %08x\n", error->plane[i].surface); |
||
8487 | seq_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset); |
||
8488 | } |
||
2332 | Serge | 8489 | |
3031 | serge | 8490 | seq_printf(m, "Cursor [%d]:\n", i); |
8491 | seq_printf(m, " CNTR: %08x\n", error->cursor[i].control); |
||
8492 | seq_printf(m, " POS: %08x\n", error->cursor[i].position); |
||
8493 | seq_printf(m, " BASE: %08x\n", error->cursor[i].base); |
||
8494 | } |
||
2327 | Serge | 8495 | } |
3031 | serge | 8496 | #endif>>5,><5,>>>><>><>>>>>(intel_crtc)-><(intel_crtc)->><>><>><>><>><>><>><>><>=><=>><>><>><>><>>>>>><>><>><>><>>><>><>>>><>><>>>><>><>><>><>>>><>><>><>><>>><>><>><>><>>>><>><>><>><>><>><>><>>><>><>><>><>><>>><>><>><>><>>><>><>><>><>><>><>><>><>>>><>><>><>><>>><>><>><>><>><>><>><>><>><>><>><>20)><20)>><>><>><>><>><>><>><>><>><>><>><>><>><>><>><>><>><>><>=>>>>>>>>>><>><>><>><>><>><>><>><>><>>>><>><>>>>>>>><>><>>>><>><>><>>><>><>>>>><>><>><>>>>>=>=>>>>=>>>=>=>=>=>>>>>>>>>>=>=>>>>>>>>> |