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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 |
2327 | Serge | 35 | #include "drmP.h" |
36 | #include "intel_drv.h" |
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2330 | Serge | 37 | #include "i915_drm.h" |
2327 | Serge | 38 | #include "i915_drv.h" |
2351 | Serge | 39 | #include "i915_trace.h" |
2327 | Serge | 40 | #include "drm_dp_helper.h" |
41 | #include "drm_crtc_helper.h" |
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42 | |||
43 | phys_addr_t get_bus_addr(void); |
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44 | |||
45 | static inline __attribute__((const)) |
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46 | bool is_power_of_2(unsigned long n) |
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47 | { |
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48 | return (n != 0 && ((n & (n - 1)) == 0)); |
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49 | } |
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50 | |||
2330 | Serge | 51 | #define MAX_ERRNO 4095 |
52 | |||
53 | #define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO) |
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54 | |||
55 | static inline long IS_ERR(const void *ptr) |
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56 | { |
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57 | return IS_ERR_VALUE((unsigned long)ptr); |
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58 | } |
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59 | |||
60 | static inline void *ERR_PTR(long error) |
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61 | { |
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62 | return (void *) error; |
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63 | } |
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64 | |||
65 | |||
2327 | Serge | 66 | static inline int pci_read_config_word(struct pci_dev *dev, int where, |
67 | u16 *val) |
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68 | { |
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69 | *val = PciRead16(dev->busnr, dev->devfn, where); |
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70 | return 1; |
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71 | } |
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72 | |||
73 | |||
74 | #define HAS_eDP (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) |
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75 | |||
2342 | Serge | 76 | bool intel_pipe_has_type(struct drm_crtc *crtc, int type); |
2327 | Serge | 77 | static void intel_update_watermarks(struct drm_device *dev); |
78 | static void intel_increase_pllclock(struct drm_crtc *crtc); |
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79 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on); |
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80 | |||
81 | typedef struct { |
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82 | /* given values */ |
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83 | int n; |
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84 | int m1, m2; |
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85 | int p1, p2; |
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86 | /* derived values */ |
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87 | int dot; |
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88 | int vco; |
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89 | int m; |
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90 | int p; |
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91 | } intel_clock_t; |
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92 | |||
93 | typedef struct { |
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94 | int min, max; |
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95 | } intel_range_t; |
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96 | |||
97 | typedef struct { |
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98 | int dot_limit; |
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99 | int p2_slow, p2_fast; |
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100 | } intel_p2_t; |
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101 | |||
102 | #define INTEL_P2_NUM 2 |
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103 | typedef struct intel_limit intel_limit_t; |
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104 | struct intel_limit { |
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105 | intel_range_t dot, vco, n, m, m1, m2, p, p1; |
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106 | intel_p2_t p2; |
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107 | bool (* find_pll)(const intel_limit_t *, struct drm_crtc *, |
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108 | int, int, intel_clock_t *); |
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109 | }; |
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110 | |||
111 | /* FDI */ |
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112 | #define IRONLAKE_FDI_FREQ 2700000 /* in kHz for mode->clock */ |
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113 | |||
114 | static bool |
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115 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, |
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116 | int target, int refclk, intel_clock_t *best_clock); |
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117 | static bool |
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118 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, |
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119 | int target, int refclk, intel_clock_t *best_clock); |
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120 | |||
121 | static bool |
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122 | intel_find_pll_g4x_dp(const intel_limit_t *, struct drm_crtc *crtc, |
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123 | int target, int refclk, intel_clock_t *best_clock); |
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124 | static bool |
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125 | intel_find_pll_ironlake_dp(const intel_limit_t *, struct drm_crtc *crtc, |
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126 | int target, int refclk, intel_clock_t *best_clock); |
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127 | |||
128 | static inline u32 /* units of 100MHz */ |
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129 | intel_fdi_link_freq(struct drm_device *dev) |
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130 | { |
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131 | if (IS_GEN5(dev)) { |
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132 | struct drm_i915_private *dev_priv = dev->dev_private; |
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133 | return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2; |
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134 | } else |
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135 | return 27; |
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136 | } |
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137 | |||
138 | static const intel_limit_t intel_limits_i8xx_dvo = { |
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139 | .dot = { .min = 25000, .max = 350000 }, |
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140 | .vco = { .min = 930000, .max = 1400000 }, |
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141 | .n = { .min = 3, .max = 16 }, |
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142 | .m = { .min = 96, .max = 140 }, |
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143 | .m1 = { .min = 18, .max = 26 }, |
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144 | .m2 = { .min = 6, .max = 16 }, |
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145 | .p = { .min = 4, .max = 128 }, |
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146 | .p1 = { .min = 2, .max = 33 }, |
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147 | .p2 = { .dot_limit = 165000, |
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148 | .p2_slow = 4, .p2_fast = 2 }, |
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149 | .find_pll = intel_find_best_PLL, |
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150 | }; |
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151 | |||
152 | static const intel_limit_t intel_limits_i8xx_lvds = { |
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153 | .dot = { .min = 25000, .max = 350000 }, |
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154 | .vco = { .min = 930000, .max = 1400000 }, |
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155 | .n = { .min = 3, .max = 16 }, |
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156 | .m = { .min = 96, .max = 140 }, |
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157 | .m1 = { .min = 18, .max = 26 }, |
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158 | .m2 = { .min = 6, .max = 16 }, |
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159 | .p = { .min = 4, .max = 128 }, |
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160 | .p1 = { .min = 1, .max = 6 }, |
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161 | .p2 = { .dot_limit = 165000, |
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162 | .p2_slow = 14, .p2_fast = 7 }, |
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163 | .find_pll = intel_find_best_PLL, |
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164 | }; |
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165 | |||
166 | static const intel_limit_t intel_limits_i9xx_sdvo = { |
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167 | .dot = { .min = 20000, .max = 400000 }, |
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168 | .vco = { .min = 1400000, .max = 2800000 }, |
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169 | .n = { .min = 1, .max = 6 }, |
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170 | .m = { .min = 70, .max = 120 }, |
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171 | .m1 = { .min = 10, .max = 22 }, |
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172 | .m2 = { .min = 5, .max = 9 }, |
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173 | .p = { .min = 5, .max = 80 }, |
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174 | .p1 = { .min = 1, .max = 8 }, |
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175 | .p2 = { .dot_limit = 200000, |
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176 | .p2_slow = 10, .p2_fast = 5 }, |
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177 | .find_pll = intel_find_best_PLL, |
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178 | }; |
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179 | |||
180 | static const intel_limit_t intel_limits_i9xx_lvds = { |
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181 | .dot = { .min = 20000, .max = 400000 }, |
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182 | .vco = { .min = 1400000, .max = 2800000 }, |
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183 | .n = { .min = 1, .max = 6 }, |
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184 | .m = { .min = 70, .max = 120 }, |
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185 | .m1 = { .min = 10, .max = 22 }, |
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186 | .m2 = { .min = 5, .max = 9 }, |
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187 | .p = { .min = 7, .max = 98 }, |
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188 | .p1 = { .min = 1, .max = 8 }, |
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189 | .p2 = { .dot_limit = 112000, |
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190 | .p2_slow = 14, .p2_fast = 7 }, |
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191 | .find_pll = intel_find_best_PLL, |
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192 | }; |
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193 | |||
194 | |||
195 | static const intel_limit_t intel_limits_g4x_sdvo = { |
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196 | .dot = { .min = 25000, .max = 270000 }, |
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197 | .vco = { .min = 1750000, .max = 3500000}, |
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198 | .n = { .min = 1, .max = 4 }, |
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199 | .m = { .min = 104, .max = 138 }, |
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200 | .m1 = { .min = 17, .max = 23 }, |
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201 | .m2 = { .min = 5, .max = 11 }, |
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202 | .p = { .min = 10, .max = 30 }, |
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203 | .p1 = { .min = 1, .max = 3}, |
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204 | .p2 = { .dot_limit = 270000, |
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205 | .p2_slow = 10, |
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206 | .p2_fast = 10 |
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207 | }, |
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208 | .find_pll = intel_g4x_find_best_PLL, |
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209 | }; |
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210 | |||
211 | static const intel_limit_t intel_limits_g4x_hdmi = { |
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212 | .dot = { .min = 22000, .max = 400000 }, |
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213 | .vco = { .min = 1750000, .max = 3500000}, |
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214 | .n = { .min = 1, .max = 4 }, |
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215 | .m = { .min = 104, .max = 138 }, |
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216 | .m1 = { .min = 16, .max = 23 }, |
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217 | .m2 = { .min = 5, .max = 11 }, |
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218 | .p = { .min = 5, .max = 80 }, |
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219 | .p1 = { .min = 1, .max = 8}, |
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220 | .p2 = { .dot_limit = 165000, |
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221 | .p2_slow = 10, .p2_fast = 5 }, |
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222 | .find_pll = intel_g4x_find_best_PLL, |
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223 | }; |
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224 | |||
225 | static const intel_limit_t intel_limits_g4x_single_channel_lvds = { |
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226 | .dot = { .min = 20000, .max = 115000 }, |
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227 | .vco = { .min = 1750000, .max = 3500000 }, |
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228 | .n = { .min = 1, .max = 3 }, |
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229 | .m = { .min = 104, .max = 138 }, |
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230 | .m1 = { .min = 17, .max = 23 }, |
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231 | .m2 = { .min = 5, .max = 11 }, |
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232 | .p = { .min = 28, .max = 112 }, |
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233 | .p1 = { .min = 2, .max = 8 }, |
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234 | .p2 = { .dot_limit = 0, |
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235 | .p2_slow = 14, .p2_fast = 14 |
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236 | }, |
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237 | .find_pll = intel_g4x_find_best_PLL, |
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238 | }; |
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239 | |||
240 | static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { |
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241 | .dot = { .min = 80000, .max = 224000 }, |
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242 | .vco = { .min = 1750000, .max = 3500000 }, |
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243 | .n = { .min = 1, .max = 3 }, |
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244 | .m = { .min = 104, .max = 138 }, |
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245 | .m1 = { .min = 17, .max = 23 }, |
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246 | .m2 = { .min = 5, .max = 11 }, |
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247 | .p = { .min = 14, .max = 42 }, |
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248 | .p1 = { .min = 2, .max = 6 }, |
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249 | .p2 = { .dot_limit = 0, |
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250 | .p2_slow = 7, .p2_fast = 7 |
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251 | }, |
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252 | .find_pll = intel_g4x_find_best_PLL, |
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253 | }; |
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254 | |||
255 | static const intel_limit_t intel_limits_g4x_display_port = { |
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256 | .dot = { .min = 161670, .max = 227000 }, |
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257 | .vco = { .min = 1750000, .max = 3500000}, |
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258 | .n = { .min = 1, .max = 2 }, |
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259 | .m = { .min = 97, .max = 108 }, |
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260 | .m1 = { .min = 0x10, .max = 0x12 }, |
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261 | .m2 = { .min = 0x05, .max = 0x06 }, |
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262 | .p = { .min = 10, .max = 20 }, |
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263 | .p1 = { .min = 1, .max = 2}, |
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264 | .p2 = { .dot_limit = 0, |
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265 | .p2_slow = 10, .p2_fast = 10 }, |
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266 | .find_pll = intel_find_pll_g4x_dp, |
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267 | }; |
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268 | |||
269 | static const intel_limit_t intel_limits_pineview_sdvo = { |
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270 | .dot = { .min = 20000, .max = 400000}, |
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271 | .vco = { .min = 1700000, .max = 3500000 }, |
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272 | /* Pineview's Ncounter is a ring counter */ |
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273 | .n = { .min = 3, .max = 6 }, |
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274 | .m = { .min = 2, .max = 256 }, |
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275 | /* Pineview only has one combined m divider, which we treat as m2. */ |
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276 | .m1 = { .min = 0, .max = 0 }, |
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277 | .m2 = { .min = 0, .max = 254 }, |
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278 | .p = { .min = 5, .max = 80 }, |
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279 | .p1 = { .min = 1, .max = 8 }, |
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280 | .p2 = { .dot_limit = 200000, |
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281 | .p2_slow = 10, .p2_fast = 5 }, |
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282 | .find_pll = intel_find_best_PLL, |
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283 | }; |
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284 | |||
285 | static const intel_limit_t intel_limits_pineview_lvds = { |
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286 | .dot = { .min = 20000, .max = 400000 }, |
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287 | .vco = { .min = 1700000, .max = 3500000 }, |
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288 | .n = { .min = 3, .max = 6 }, |
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289 | .m = { .min = 2, .max = 256 }, |
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290 | .m1 = { .min = 0, .max = 0 }, |
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291 | .m2 = { .min = 0, .max = 254 }, |
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292 | .p = { .min = 7, .max = 112 }, |
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293 | .p1 = { .min = 1, .max = 8 }, |
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294 | .p2 = { .dot_limit = 112000, |
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295 | .p2_slow = 14, .p2_fast = 14 }, |
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296 | .find_pll = intel_find_best_PLL, |
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297 | }; |
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298 | |||
299 | /* Ironlake / Sandybridge |
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300 | * |
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301 | * We calculate clock using (register_value + 2) for N/M1/M2, so here |
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302 | * the range value for them is (actual_value - 2). |
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303 | */ |
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304 | static const intel_limit_t intel_limits_ironlake_dac = { |
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305 | .dot = { .min = 25000, .max = 350000 }, |
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306 | .vco = { .min = 1760000, .max = 3510000 }, |
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307 | .n = { .min = 1, .max = 5 }, |
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308 | .m = { .min = 79, .max = 127 }, |
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309 | .m1 = { .min = 12, .max = 22 }, |
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310 | .m2 = { .min = 5, .max = 9 }, |
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311 | .p = { .min = 5, .max = 80 }, |
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312 | .p1 = { .min = 1, .max = 8 }, |
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313 | .p2 = { .dot_limit = 225000, |
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314 | .p2_slow = 10, .p2_fast = 5 }, |
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315 | .find_pll = intel_g4x_find_best_PLL, |
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316 | }; |
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317 | |||
318 | static const intel_limit_t intel_limits_ironlake_single_lvds = { |
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319 | .dot = { .min = 25000, .max = 350000 }, |
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320 | .vco = { .min = 1760000, .max = 3510000 }, |
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321 | .n = { .min = 1, .max = 3 }, |
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322 | .m = { .min = 79, .max = 118 }, |
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323 | .m1 = { .min = 12, .max = 22 }, |
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324 | .m2 = { .min = 5, .max = 9 }, |
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325 | .p = { .min = 28, .max = 112 }, |
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326 | .p1 = { .min = 2, .max = 8 }, |
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327 | .p2 = { .dot_limit = 225000, |
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328 | .p2_slow = 14, .p2_fast = 14 }, |
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329 | .find_pll = intel_g4x_find_best_PLL, |
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330 | }; |
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331 | |||
332 | static const intel_limit_t intel_limits_ironlake_dual_lvds = { |
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333 | .dot = { .min = 25000, .max = 350000 }, |
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334 | .vco = { .min = 1760000, .max = 3510000 }, |
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335 | .n = { .min = 1, .max = 3 }, |
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336 | .m = { .min = 79, .max = 127 }, |
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337 | .m1 = { .min = 12, .max = 22 }, |
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338 | .m2 = { .min = 5, .max = 9 }, |
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339 | .p = { .min = 14, .max = 56 }, |
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340 | .p1 = { .min = 2, .max = 8 }, |
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341 | .p2 = { .dot_limit = 225000, |
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342 | .p2_slow = 7, .p2_fast = 7 }, |
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343 | .find_pll = intel_g4x_find_best_PLL, |
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344 | }; |
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345 | |||
346 | /* LVDS 100mhz refclk limits. */ |
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347 | static const intel_limit_t intel_limits_ironlake_single_lvds_100m = { |
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348 | .dot = { .min = 25000, .max = 350000 }, |
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349 | .vco = { .min = 1760000, .max = 3510000 }, |
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350 | .n = { .min = 1, .max = 2 }, |
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351 | .m = { .min = 79, .max = 126 }, |
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352 | .m1 = { .min = 12, .max = 22 }, |
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353 | .m2 = { .min = 5, .max = 9 }, |
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354 | .p = { .min = 28, .max = 112 }, |
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2342 | Serge | 355 | .p1 = { .min = 2, .max = 8 }, |
2327 | Serge | 356 | .p2 = { .dot_limit = 225000, |
357 | .p2_slow = 14, .p2_fast = 14 }, |
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358 | .find_pll = intel_g4x_find_best_PLL, |
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359 | }; |
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360 | |||
361 | static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = { |
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362 | .dot = { .min = 25000, .max = 350000 }, |
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363 | .vco = { .min = 1760000, .max = 3510000 }, |
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364 | .n = { .min = 1, .max = 3 }, |
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365 | .m = { .min = 79, .max = 126 }, |
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366 | .m1 = { .min = 12, .max = 22 }, |
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367 | .m2 = { .min = 5, .max = 9 }, |
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368 | .p = { .min = 14, .max = 42 }, |
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2342 | Serge | 369 | .p1 = { .min = 2, .max = 6 }, |
2327 | Serge | 370 | .p2 = { .dot_limit = 225000, |
371 | .p2_slow = 7, .p2_fast = 7 }, |
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372 | .find_pll = intel_g4x_find_best_PLL, |
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373 | }; |
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374 | |||
375 | static const intel_limit_t intel_limits_ironlake_display_port = { |
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376 | .dot = { .min = 25000, .max = 350000 }, |
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377 | .vco = { .min = 1760000, .max = 3510000}, |
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378 | .n = { .min = 1, .max = 2 }, |
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379 | .m = { .min = 81, .max = 90 }, |
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380 | .m1 = { .min = 12, .max = 22 }, |
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381 | .m2 = { .min = 5, .max = 9 }, |
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382 | .p = { .min = 10, .max = 20 }, |
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383 | .p1 = { .min = 1, .max = 2}, |
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384 | .p2 = { .dot_limit = 0, |
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385 | .p2_slow = 10, .p2_fast = 10 }, |
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386 | .find_pll = intel_find_pll_ironlake_dp, |
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387 | }; |
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388 | |||
389 | static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc, |
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390 | int refclk) |
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391 | { |
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392 | struct drm_device *dev = crtc->dev; |
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393 | struct drm_i915_private *dev_priv = dev->dev_private; |
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394 | const intel_limit_t *limit; |
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395 | |||
396 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
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397 | if ((I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) == |
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398 | LVDS_CLKB_POWER_UP) { |
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399 | /* LVDS dual channel */ |
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400 | if (refclk == 100000) |
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401 | limit = &intel_limits_ironlake_dual_lvds_100m; |
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402 | else |
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403 | limit = &intel_limits_ironlake_dual_lvds; |
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404 | } else { |
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405 | if (refclk == 100000) |
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406 | limit = &intel_limits_ironlake_single_lvds_100m; |
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407 | else |
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408 | limit = &intel_limits_ironlake_single_lvds; |
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409 | } |
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410 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || |
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411 | HAS_eDP) |
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412 | limit = &intel_limits_ironlake_display_port; |
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413 | else |
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414 | limit = &intel_limits_ironlake_dac; |
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415 | |||
416 | return limit; |
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417 | } |
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418 | |||
419 | static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc) |
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420 | { |
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421 | struct drm_device *dev = crtc->dev; |
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422 | struct drm_i915_private *dev_priv = dev->dev_private; |
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423 | const intel_limit_t *limit; |
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424 | |||
425 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
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426 | if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) == |
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427 | LVDS_CLKB_POWER_UP) |
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428 | /* LVDS with dual channel */ |
||
429 | limit = &intel_limits_g4x_dual_channel_lvds; |
||
430 | else |
||
431 | /* LVDS with dual channel */ |
||
432 | limit = &intel_limits_g4x_single_channel_lvds; |
||
433 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) || |
||
434 | intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { |
||
435 | limit = &intel_limits_g4x_hdmi; |
||
436 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) { |
||
437 | limit = &intel_limits_g4x_sdvo; |
||
2342 | Serge | 438 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
2327 | Serge | 439 | limit = &intel_limits_g4x_display_port; |
440 | } else /* The option is for other outputs */ |
||
441 | limit = &intel_limits_i9xx_sdvo; |
||
442 | |||
443 | return limit; |
||
444 | } |
||
445 | |||
446 | static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk) |
||
447 | { |
||
448 | struct drm_device *dev = crtc->dev; |
||
449 | const intel_limit_t *limit; |
||
450 | |||
451 | if (HAS_PCH_SPLIT(dev)) |
||
452 | limit = intel_ironlake_limit(crtc, refclk); |
||
453 | else if (IS_G4X(dev)) { |
||
454 | limit = intel_g4x_limit(crtc); |
||
455 | } else if (IS_PINEVIEW(dev)) { |
||
456 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
||
457 | limit = &intel_limits_pineview_lvds; |
||
458 | else |
||
459 | limit = &intel_limits_pineview_sdvo; |
||
460 | } else if (!IS_GEN2(dev)) { |
||
461 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
||
462 | limit = &intel_limits_i9xx_lvds; |
||
463 | else |
||
464 | limit = &intel_limits_i9xx_sdvo; |
||
465 | } else { |
||
466 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
||
467 | limit = &intel_limits_i8xx_lvds; |
||
468 | else |
||
469 | limit = &intel_limits_i8xx_dvo; |
||
470 | } |
||
471 | return limit; |
||
472 | } |
||
473 | |||
474 | /* m1 is reserved as 0 in Pineview, n is a ring counter */ |
||
475 | static void pineview_clock(int refclk, intel_clock_t *clock) |
||
476 | { |
||
477 | clock->m = clock->m2 + 2; |
||
478 | clock->p = clock->p1 * clock->p2; |
||
479 | clock->vco = refclk * clock->m / clock->n; |
||
480 | clock->dot = clock->vco / clock->p; |
||
481 | } |
||
482 | |||
483 | static void intel_clock(struct drm_device *dev, int refclk, intel_clock_t *clock) |
||
484 | { |
||
485 | if (IS_PINEVIEW(dev)) { |
||
486 | pineview_clock(refclk, clock); |
||
487 | return; |
||
488 | } |
||
489 | clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2); |
||
490 | clock->p = clock->p1 * clock->p2; |
||
491 | clock->vco = refclk * clock->m / (clock->n + 2); |
||
492 | clock->dot = clock->vco / clock->p; |
||
493 | } |
||
494 | |||
495 | /** |
||
496 | * Returns whether any output on the specified pipe is of the specified type |
||
497 | */ |
||
498 | bool intel_pipe_has_type(struct drm_crtc *crtc, int type) |
||
499 | { |
||
500 | struct drm_device *dev = crtc->dev; |
||
501 | struct drm_mode_config *mode_config = &dev->mode_config; |
||
502 | struct intel_encoder *encoder; |
||
503 | |||
504 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) |
||
505 | if (encoder->base.crtc == crtc && encoder->type == type) |
||
506 | return true; |
||
507 | |||
508 | return false; |
||
509 | } |
||
510 | |||
511 | #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) |
||
512 | /** |
||
513 | * Returns whether the given set of divisors are valid for a given refclk with |
||
514 | * the given connectors. |
||
515 | */ |
||
516 | |||
517 | static bool intel_PLL_is_valid(struct drm_device *dev, |
||
518 | const intel_limit_t *limit, |
||
519 | const intel_clock_t *clock) |
||
520 | { |
||
521 | if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1) |
||
2342 | Serge | 522 | INTELPllInvalid("p1 out of range\n"); |
2327 | Serge | 523 | if (clock->p < limit->p.min || limit->p.max < clock->p) |
2342 | Serge | 524 | INTELPllInvalid("p out of range\n"); |
2327 | Serge | 525 | if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2) |
2342 | Serge | 526 | INTELPllInvalid("m2 out of range\n"); |
2327 | Serge | 527 | if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1) |
2342 | Serge | 528 | INTELPllInvalid("m1 out of range\n"); |
2327 | Serge | 529 | if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev)) |
2342 | Serge | 530 | INTELPllInvalid("m1 <= m2\n"); |
2327 | Serge | 531 | if (clock->m < limit->m.min || limit->m.max < clock->m) |
2342 | Serge | 532 | INTELPllInvalid("m out of range\n"); |
2327 | Serge | 533 | if (clock->n < limit->n.min || limit->n.max < clock->n) |
2342 | Serge | 534 | INTELPllInvalid("n out of range\n"); |
2327 | Serge | 535 | if (clock->vco < limit->vco.min || limit->vco.max < clock->vco) |
2342 | Serge | 536 | INTELPllInvalid("vco out of range\n"); |
2327 | Serge | 537 | /* XXX: We may need to be checking "Dot clock" depending on the multiplier, |
538 | * connector, etc., rather than just a single range. |
||
539 | */ |
||
540 | if (clock->dot < limit->dot.min || limit->dot.max < clock->dot) |
||
2342 | Serge | 541 | INTELPllInvalid("dot out of range\n"); |
2327 | Serge | 542 | |
543 | return true; |
||
544 | } |
||
545 | |||
546 | static bool |
||
547 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, |
||
548 | int target, int refclk, intel_clock_t *best_clock) |
||
549 | |||
550 | { |
||
551 | struct drm_device *dev = crtc->dev; |
||
552 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
553 | intel_clock_t clock; |
||
554 | int err = target; |
||
555 | |||
556 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && |
||
557 | (I915_READ(LVDS)) != 0) { |
||
558 | /* |
||
559 | * For LVDS, if the panel is on, just rely on its current |
||
560 | * settings for dual-channel. We haven't figured out how to |
||
561 | * reliably set up different single/dual channel state, if we |
||
562 | * even can. |
||
563 | */ |
||
564 | if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) == |
||
565 | LVDS_CLKB_POWER_UP) |
||
566 | clock.p2 = limit->p2.p2_fast; |
||
567 | else |
||
568 | clock.p2 = limit->p2.p2_slow; |
||
569 | } else { |
||
570 | if (target < limit->p2.dot_limit) |
||
571 | clock.p2 = limit->p2.p2_slow; |
||
572 | else |
||
573 | clock.p2 = limit->p2.p2_fast; |
||
574 | } |
||
575 | |||
2342 | Serge | 576 | memset(best_clock, 0, sizeof(*best_clock)); |
2327 | Serge | 577 | |
578 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
||
579 | clock.m1++) { |
||
580 | for (clock.m2 = limit->m2.min; |
||
581 | clock.m2 <= limit->m2.max; clock.m2++) { |
||
582 | /* m1 is always 0 in Pineview */ |
||
583 | if (clock.m2 >= clock.m1 && !IS_PINEVIEW(dev)) |
||
584 | break; |
||
585 | for (clock.n = limit->n.min; |
||
586 | clock.n <= limit->n.max; clock.n++) { |
||
587 | for (clock.p1 = limit->p1.min; |
||
588 | clock.p1 <= limit->p1.max; clock.p1++) { |
||
589 | int this_err; |
||
590 | |||
591 | intel_clock(dev, refclk, &clock); |
||
592 | if (!intel_PLL_is_valid(dev, limit, |
||
593 | &clock)) |
||
594 | continue; |
||
595 | |||
596 | this_err = abs(clock.dot - target); |
||
597 | if (this_err < err) { |
||
598 | *best_clock = clock; |
||
599 | err = this_err; |
||
600 | } |
||
601 | } |
||
602 | } |
||
603 | } |
||
604 | } |
||
605 | |||
606 | return (err != target); |
||
607 | } |
||
608 | |||
609 | static bool |
||
610 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, |
||
611 | int target, int refclk, intel_clock_t *best_clock) |
||
612 | { |
||
613 | struct drm_device *dev = crtc->dev; |
||
614 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
615 | intel_clock_t clock; |
||
616 | int max_n; |
||
617 | bool found; |
||
618 | /* approximately equals target * 0.00585 */ |
||
619 | int err_most = (target >> 8) + (target >> 9); |
||
620 | found = false; |
||
621 | |||
622 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
||
623 | int lvds_reg; |
||
624 | |||
625 | if (HAS_PCH_SPLIT(dev)) |
||
626 | lvds_reg = PCH_LVDS; |
||
627 | else |
||
628 | lvds_reg = LVDS; |
||
629 | if ((I915_READ(lvds_reg) & LVDS_CLKB_POWER_MASK) == |
||
630 | LVDS_CLKB_POWER_UP) |
||
631 | clock.p2 = limit->p2.p2_fast; |
||
632 | else |
||
633 | clock.p2 = limit->p2.p2_slow; |
||
634 | } else { |
||
635 | if (target < limit->p2.dot_limit) |
||
636 | clock.p2 = limit->p2.p2_slow; |
||
637 | else |
||
638 | clock.p2 = limit->p2.p2_fast; |
||
639 | } |
||
640 | |||
641 | memset(best_clock, 0, sizeof(*best_clock)); |
||
642 | max_n = limit->n.max; |
||
643 | /* based on hardware requirement, prefer smaller n to precision */ |
||
644 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
||
645 | /* based on hardware requirement, prefere larger m1,m2 */ |
||
646 | for (clock.m1 = limit->m1.max; |
||
647 | clock.m1 >= limit->m1.min; clock.m1--) { |
||
648 | for (clock.m2 = limit->m2.max; |
||
649 | clock.m2 >= limit->m2.min; clock.m2--) { |
||
650 | for (clock.p1 = limit->p1.max; |
||
651 | clock.p1 >= limit->p1.min; clock.p1--) { |
||
652 | int this_err; |
||
653 | |||
654 | intel_clock(dev, refclk, &clock); |
||
655 | if (!intel_PLL_is_valid(dev, limit, |
||
656 | &clock)) |
||
657 | continue; |
||
658 | |||
659 | this_err = abs(clock.dot - target); |
||
660 | if (this_err < err_most) { |
||
661 | *best_clock = clock; |
||
662 | err_most = this_err; |
||
663 | max_n = clock.n; |
||
664 | found = true; |
||
665 | } |
||
666 | } |
||
667 | } |
||
668 | } |
||
669 | } |
||
670 | return found; |
||
671 | } |
||
672 | |||
673 | static bool |
||
674 | intel_find_pll_ironlake_dp(const intel_limit_t *limit, struct drm_crtc *crtc, |
||
675 | int target, int refclk, intel_clock_t *best_clock) |
||
676 | { |
||
677 | struct drm_device *dev = crtc->dev; |
||
678 | intel_clock_t clock; |
||
679 | |||
680 | if (target < 200000) { |
||
681 | clock.n = 1; |
||
682 | clock.p1 = 2; |
||
683 | clock.p2 = 10; |
||
684 | clock.m1 = 12; |
||
685 | clock.m2 = 9; |
||
686 | } else { |
||
687 | clock.n = 2; |
||
688 | clock.p1 = 1; |
||
689 | clock.p2 = 10; |
||
690 | clock.m1 = 14; |
||
691 | clock.m2 = 8; |
||
692 | } |
||
693 | intel_clock(dev, refclk, &clock); |
||
694 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); |
||
695 | return true; |
||
696 | } |
||
697 | |||
698 | /* DisplayPort has only two frequencies, 162MHz and 270MHz */ |
||
699 | static bool |
||
700 | intel_find_pll_g4x_dp(const intel_limit_t *limit, struct drm_crtc *crtc, |
||
701 | int target, int refclk, intel_clock_t *best_clock) |
||
702 | { |
||
703 | intel_clock_t clock; |
||
704 | if (target < 200000) { |
||
705 | clock.p1 = 2; |
||
706 | clock.p2 = 10; |
||
707 | clock.n = 2; |
||
708 | clock.m1 = 23; |
||
709 | clock.m2 = 8; |
||
710 | } else { |
||
711 | clock.p1 = 1; |
||
712 | clock.p2 = 10; |
||
713 | clock.n = 1; |
||
714 | clock.m1 = 14; |
||
715 | clock.m2 = 2; |
||
716 | } |
||
717 | clock.m = 5 * (clock.m1 + 2) + (clock.m2 + 2); |
||
718 | clock.p = (clock.p1 * clock.p2); |
||
719 | clock.dot = 96000 * clock.m / (clock.n + 2) / clock.p; |
||
720 | clock.vco = 0; |
||
721 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); |
||
722 | return true; |
||
723 | } |
||
724 | |||
725 | /** |
||
726 | * intel_wait_for_vblank - wait for vblank on a given pipe |
||
727 | * @dev: drm device |
||
728 | * @pipe: pipe to wait for |
||
729 | * |
||
730 | * Wait for vblank to occur on a given pipe. Needed for various bits of |
||
731 | * mode setting code. |
||
732 | */ |
||
733 | void intel_wait_for_vblank(struct drm_device *dev, int pipe) |
||
734 | { |
||
735 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
736 | int pipestat_reg = PIPESTAT(pipe); |
||
737 | |||
738 | /* Clear existing vblank status. Note this will clear any other |
||
739 | * sticky status fields as well. |
||
740 | * |
||
741 | * This races with i915_driver_irq_handler() with the result |
||
742 | * that either function could miss a vblank event. Here it is not |
||
743 | * fatal, as we will either wait upon the next vblank interrupt or |
||
744 | * timeout. Generally speaking intel_wait_for_vblank() is only |
||
745 | * called during modeset at which time the GPU should be idle and |
||
746 | * should *not* be performing page flips and thus not waiting on |
||
747 | * vblanks... |
||
748 | * Currently, the result of us stealing a vblank from the irq |
||
749 | * handler is that a single frame will be skipped during swapbuffers. |
||
750 | */ |
||
751 | I915_WRITE(pipestat_reg, |
||
752 | I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS); |
||
753 | |||
754 | /* Wait for vblank interrupt bit to set */ |
||
755 | if (wait_for(I915_READ(pipestat_reg) & |
||
756 | PIPE_VBLANK_INTERRUPT_STATUS, |
||
757 | 50)) |
||
758 | DRM_DEBUG_KMS("vblank wait timed out\n"); |
||
759 | } |
||
760 | |||
761 | /* |
||
762 | * intel_wait_for_pipe_off - wait for pipe to turn off |
||
763 | * @dev: drm device |
||
764 | * @pipe: pipe to wait for |
||
765 | * |
||
766 | * After disabling a pipe, we can't wait for vblank in the usual way, |
||
767 | * spinning on the vblank interrupt status bit, since we won't actually |
||
768 | * see an interrupt when the pipe is disabled. |
||
769 | * |
||
770 | * On Gen4 and above: |
||
771 | * wait for the pipe register state bit to turn off |
||
772 | * |
||
773 | * Otherwise: |
||
774 | * wait for the display line value to settle (it usually |
||
775 | * ends up stopping at the start of the next frame). |
||
776 | * |
||
777 | */ |
||
778 | void intel_wait_for_pipe_off(struct drm_device *dev, int pipe) |
||
779 | { |
||
780 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
781 | |||
782 | if (INTEL_INFO(dev)->gen >= 4) { |
||
783 | int reg = PIPECONF(pipe); |
||
784 | |||
785 | /* Wait for the Pipe State to go off */ |
||
786 | if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0, |
||
787 | 100)) |
||
788 | DRM_DEBUG_KMS("pipe_off wait timed out\n"); |
||
789 | } else { |
||
790 | u32 last_line; |
||
791 | int reg = PIPEDSL(pipe); |
||
792 | unsigned long timeout = jiffies + msecs_to_jiffies(100); |
||
793 | |||
794 | /* Wait for the display line to settle */ |
||
795 | do { |
||
796 | last_line = I915_READ(reg) & DSL_LINEMASK; |
||
797 | mdelay(5); |
||
798 | } while (((I915_READ(reg) & DSL_LINEMASK) != last_line) && |
||
799 | time_after(timeout, jiffies)); |
||
800 | if (time_after(jiffies, timeout)) |
||
801 | DRM_DEBUG_KMS("pipe_off wait timed out\n"); |
||
802 | } |
||
803 | } |
||
804 | |||
805 | static const char *state_string(bool enabled) |
||
806 | { |
||
807 | return enabled ? "on" : "off"; |
||
808 | } |
||
809 | |||
810 | /* Only for pre-ILK configs */ |
||
811 | static void assert_pll(struct drm_i915_private *dev_priv, |
||
812 | enum pipe pipe, bool state) |
||
813 | { |
||
814 | int reg; |
||
815 | u32 val; |
||
816 | bool cur_state; |
||
817 | |||
818 | reg = DPLL(pipe); |
||
819 | val = I915_READ(reg); |
||
820 | cur_state = !!(val & DPLL_VCO_ENABLE); |
||
821 | WARN(cur_state != state, |
||
822 | "PLL state assertion failure (expected %s, current %s)\n", |
||
823 | state_string(state), state_string(cur_state)); |
||
824 | } |
||
825 | #define assert_pll_enabled(d, p) assert_pll(d, p, true) |
||
826 | #define assert_pll_disabled(d, p) assert_pll(d, p, false) |
||
827 | |||
828 | /* For ILK+ */ |
||
829 | static void assert_pch_pll(struct drm_i915_private *dev_priv, |
||
830 | enum pipe pipe, bool state) |
||
831 | { |
||
832 | int reg; |
||
833 | u32 val; |
||
834 | bool cur_state; |
||
835 | |||
2342 | Serge | 836 | if (HAS_PCH_CPT(dev_priv->dev)) { |
837 | u32 pch_dpll; |
||
838 | |||
839 | pch_dpll = I915_READ(PCH_DPLL_SEL); |
||
840 | |||
841 | /* Make sure the selected PLL is enabled to the transcoder */ |
||
842 | WARN(!((pch_dpll >> (4 * pipe)) & 8), |
||
843 | "transcoder %d PLL not enabled\n", pipe); |
||
844 | |||
845 | /* Convert the transcoder pipe number to a pll pipe number */ |
||
846 | pipe = (pch_dpll >> (4 * pipe)) & 1; |
||
847 | } |
||
848 | |||
2327 | Serge | 849 | reg = PCH_DPLL(pipe); |
850 | val = I915_READ(reg); |
||
851 | cur_state = !!(val & DPLL_VCO_ENABLE); |
||
852 | WARN(cur_state != state, |
||
853 | "PCH PLL state assertion failure (expected %s, current %s)\n", |
||
854 | state_string(state), state_string(cur_state)); |
||
855 | } |
||
856 | #define assert_pch_pll_enabled(d, p) assert_pch_pll(d, p, true) |
||
857 | #define assert_pch_pll_disabled(d, p) assert_pch_pll(d, p, false) |
||
858 | |||
859 | static void assert_fdi_tx(struct drm_i915_private *dev_priv, |
||
860 | enum pipe pipe, bool state) |
||
861 | { |
||
862 | int reg; |
||
863 | u32 val; |
||
864 | bool cur_state; |
||
865 | |||
866 | reg = FDI_TX_CTL(pipe); |
||
867 | val = I915_READ(reg); |
||
868 | cur_state = !!(val & FDI_TX_ENABLE); |
||
869 | WARN(cur_state != state, |
||
870 | "FDI TX state assertion failure (expected %s, current %s)\n", |
||
871 | state_string(state), state_string(cur_state)); |
||
872 | } |
||
873 | #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true) |
||
874 | #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false) |
||
875 | |||
876 | static void assert_fdi_rx(struct drm_i915_private *dev_priv, |
||
877 | enum pipe pipe, bool state) |
||
878 | { |
||
879 | int reg; |
||
880 | u32 val; |
||
881 | bool cur_state; |
||
882 | |||
883 | reg = FDI_RX_CTL(pipe); |
||
884 | val = I915_READ(reg); |
||
885 | cur_state = !!(val & FDI_RX_ENABLE); |
||
886 | WARN(cur_state != state, |
||
887 | "FDI RX state assertion failure (expected %s, current %s)\n", |
||
888 | state_string(state), state_string(cur_state)); |
||
889 | } |
||
890 | #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true) |
||
891 | #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false) |
||
892 | |||
893 | static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv, |
||
894 | enum pipe pipe) |
||
895 | { |
||
896 | int reg; |
||
897 | u32 val; |
||
898 | |||
899 | /* ILK FDI PLL is always enabled */ |
||
900 | if (dev_priv->info->gen == 5) |
||
901 | return; |
||
902 | |||
903 | reg = FDI_TX_CTL(pipe); |
||
904 | val = I915_READ(reg); |
||
905 | WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n"); |
||
906 | } |
||
907 | |||
908 | static void assert_fdi_rx_pll_enabled(struct drm_i915_private *dev_priv, |
||
909 | enum pipe pipe) |
||
910 | { |
||
911 | int reg; |
||
912 | u32 val; |
||
913 | |||
914 | reg = FDI_RX_CTL(pipe); |
||
915 | val = I915_READ(reg); |
||
916 | WARN(!(val & FDI_RX_PLL_ENABLE), "FDI RX PLL assertion failure, should be active but is disabled\n"); |
||
917 | } |
||
918 | |||
919 | static void assert_panel_unlocked(struct drm_i915_private *dev_priv, |
||
920 | enum pipe pipe) |
||
921 | { |
||
922 | int pp_reg, lvds_reg; |
||
923 | u32 val; |
||
924 | enum pipe panel_pipe = PIPE_A; |
||
925 | bool locked = true; |
||
926 | |||
927 | if (HAS_PCH_SPLIT(dev_priv->dev)) { |
||
928 | pp_reg = PCH_PP_CONTROL; |
||
929 | lvds_reg = PCH_LVDS; |
||
930 | } else { |
||
931 | pp_reg = PP_CONTROL; |
||
932 | lvds_reg = LVDS; |
||
933 | } |
||
934 | |||
935 | val = I915_READ(pp_reg); |
||
936 | if (!(val & PANEL_POWER_ON) || |
||
937 | ((val & PANEL_UNLOCK_REGS) == PANEL_UNLOCK_REGS)) |
||
938 | locked = false; |
||
939 | |||
940 | if (I915_READ(lvds_reg) & LVDS_PIPEB_SELECT) |
||
941 | panel_pipe = PIPE_B; |
||
942 | |||
943 | WARN(panel_pipe == pipe && locked, |
||
944 | "panel assertion failure, pipe %c regs locked\n", |
||
945 | pipe_name(pipe)); |
||
946 | } |
||
947 | |||
2342 | Serge | 948 | void assert_pipe(struct drm_i915_private *dev_priv, |
2327 | Serge | 949 | enum pipe pipe, bool state) |
950 | { |
||
951 | int reg; |
||
952 | u32 val; |
||
953 | bool cur_state; |
||
954 | |||
955 | reg = PIPECONF(pipe); |
||
956 | val = I915_READ(reg); |
||
957 | cur_state = !!(val & PIPECONF_ENABLE); |
||
958 | WARN(cur_state != state, |
||
959 | "pipe %c assertion failure (expected %s, current %s)\n", |
||
960 | pipe_name(pipe), state_string(state), state_string(cur_state)); |
||
961 | } |
||
962 | |||
963 | static void assert_plane_enabled(struct drm_i915_private *dev_priv, |
||
964 | enum plane plane) |
||
965 | { |
||
966 | int reg; |
||
967 | u32 val; |
||
968 | |||
969 | reg = DSPCNTR(plane); |
||
970 | val = I915_READ(reg); |
||
971 | WARN(!(val & DISPLAY_PLANE_ENABLE), |
||
972 | "plane %c assertion failure, should be active but is disabled\n", |
||
973 | plane_name(plane)); |
||
974 | } |
||
975 | |||
976 | static void assert_planes_disabled(struct drm_i915_private *dev_priv, |
||
977 | enum pipe pipe) |
||
978 | { |
||
979 | int reg, i; |
||
980 | u32 val; |
||
981 | int cur_pipe; |
||
982 | |||
983 | /* Planes are fixed to pipes on ILK+ */ |
||
984 | if (HAS_PCH_SPLIT(dev_priv->dev)) |
||
985 | return; |
||
986 | |||
987 | /* Need to check both planes against the pipe */ |
||
988 | for (i = 0; i < 2; i++) { |
||
989 | reg = DSPCNTR(i); |
||
990 | val = I915_READ(reg); |
||
991 | cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >> |
||
992 | DISPPLANE_SEL_PIPE_SHIFT; |
||
993 | WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe, |
||
994 | "plane %c assertion failure, should be off on pipe %c but is still active\n", |
||
995 | plane_name(i), pipe_name(pipe)); |
||
996 | } |
||
997 | } |
||
998 | |||
999 | static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv) |
||
1000 | { |
||
1001 | u32 val; |
||
1002 | bool enabled; |
||
1003 | |||
1004 | val = I915_READ(PCH_DREF_CONTROL); |
||
1005 | enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK | |
||
1006 | DREF_SUPERSPREAD_SOURCE_MASK)); |
||
1007 | WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n"); |
||
1008 | } |
||
1009 | |||
1010 | static void assert_transcoder_disabled(struct drm_i915_private *dev_priv, |
||
1011 | enum pipe pipe) |
||
1012 | { |
||
1013 | int reg; |
||
1014 | u32 val; |
||
1015 | bool enabled; |
||
1016 | |||
1017 | reg = TRANSCONF(pipe); |
||
1018 | val = I915_READ(reg); |
||
1019 | enabled = !!(val & TRANS_ENABLE); |
||
1020 | WARN(enabled, |
||
1021 | "transcoder assertion failed, should be off on pipe %c but is still active\n", |
||
1022 | pipe_name(pipe)); |
||
1023 | } |
||
1024 | |||
1025 | static bool dp_pipe_enabled(struct drm_i915_private *dev_priv, |
||
1026 | enum pipe pipe, u32 port_sel, u32 val) |
||
1027 | { |
||
1028 | if ((val & DP_PORT_EN) == 0) |
||
1029 | return false; |
||
1030 | |||
1031 | if (HAS_PCH_CPT(dev_priv->dev)) { |
||
1032 | u32 trans_dp_ctl_reg = TRANS_DP_CTL(pipe); |
||
1033 | u32 trans_dp_ctl = I915_READ(trans_dp_ctl_reg); |
||
1034 | if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel) |
||
1035 | return false; |
||
1036 | } else { |
||
1037 | if ((val & DP_PIPE_MASK) != (pipe << 30)) |
||
1038 | return false; |
||
1039 | } |
||
1040 | return true; |
||
1041 | } |
||
1042 | |||
1043 | static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv, |
||
1044 | enum pipe pipe, u32 val) |
||
1045 | { |
||
1046 | if ((val & PORT_ENABLE) == 0) |
||
1047 | return false; |
||
1048 | |||
1049 | if (HAS_PCH_CPT(dev_priv->dev)) { |
||
1050 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) |
||
1051 | return false; |
||
1052 | } else { |
||
1053 | if ((val & TRANSCODER_MASK) != TRANSCODER(pipe)) |
||
1054 | return false; |
||
1055 | } |
||
1056 | return true; |
||
1057 | } |
||
1058 | |||
1059 | static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv, |
||
1060 | enum pipe pipe, u32 val) |
||
1061 | { |
||
1062 | if ((val & LVDS_PORT_EN) == 0) |
||
1063 | return false; |
||
1064 | |||
1065 | if (HAS_PCH_CPT(dev_priv->dev)) { |
||
1066 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) |
||
1067 | return false; |
||
1068 | } else { |
||
1069 | if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe)) |
||
1070 | return false; |
||
1071 | } |
||
1072 | return true; |
||
1073 | } |
||
1074 | |||
1075 | static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv, |
||
1076 | enum pipe pipe, u32 val) |
||
1077 | { |
||
1078 | if ((val & ADPA_DAC_ENABLE) == 0) |
||
1079 | return false; |
||
1080 | if (HAS_PCH_CPT(dev_priv->dev)) { |
||
1081 | if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe)) |
||
1082 | return false; |
||
1083 | } else { |
||
1084 | if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe)) |
||
1085 | return false; |
||
1086 | } |
||
1087 | return true; |
||
1088 | } |
||
1089 | |||
1090 | static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv, |
||
1091 | enum pipe pipe, int reg, u32 port_sel) |
||
1092 | { |
||
1093 | u32 val = I915_READ(reg); |
||
1094 | WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val), |
||
1095 | "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n", |
||
1096 | reg, pipe_name(pipe)); |
||
1097 | } |
||
1098 | |||
1099 | static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv, |
||
1100 | enum pipe pipe, int reg) |
||
1101 | { |
||
1102 | u32 val = I915_READ(reg); |
||
1103 | WARN(hdmi_pipe_enabled(dev_priv, val, pipe), |
||
1104 | "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n", |
||
1105 | reg, pipe_name(pipe)); |
||
1106 | } |
||
1107 | |||
1108 | static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, |
||
1109 | enum pipe pipe) |
||
1110 | { |
||
1111 | int reg; |
||
1112 | u32 val; |
||
1113 | |||
1114 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); |
||
1115 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); |
||
1116 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); |
||
1117 | |||
1118 | reg = PCH_ADPA; |
||
1119 | val = I915_READ(reg); |
||
1120 | WARN(adpa_pipe_enabled(dev_priv, val, pipe), |
||
1121 | "PCH VGA enabled on transcoder %c, should be disabled\n", |
||
1122 | pipe_name(pipe)); |
||
1123 | |||
1124 | reg = PCH_LVDS; |
||
1125 | val = I915_READ(reg); |
||
1126 | WARN(lvds_pipe_enabled(dev_priv, val, pipe), |
||
1127 | "PCH LVDS enabled on transcoder %c, should be disabled\n", |
||
1128 | pipe_name(pipe)); |
||
1129 | |||
1130 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMIB); |
||
1131 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMIC); |
||
1132 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMID); |
||
1133 | } |
||
1134 | |||
1135 | /** |
||
1136 | * intel_enable_pll - enable a PLL |
||
1137 | * @dev_priv: i915 private structure |
||
1138 | * @pipe: pipe PLL to enable |
||
1139 | * |
||
1140 | * Enable @pipe's PLL so we can start pumping pixels from a plane. Check to |
||
1141 | * make sure the PLL reg is writable first though, since the panel write |
||
1142 | * protect mechanism may be enabled. |
||
1143 | * |
||
1144 | * Note! This is for pre-ILK only. |
||
1145 | */ |
||
1146 | static void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) |
||
1147 | { |
||
1148 | int reg; |
||
1149 | u32 val; |
||
1150 | |||
1151 | /* No really, not for ILK+ */ |
||
1152 | BUG_ON(dev_priv->info->gen >= 5); |
||
1153 | |||
1154 | /* PLL is protected by panel, make sure we can write it */ |
||
1155 | if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev)) |
||
1156 | assert_panel_unlocked(dev_priv, pipe); |
||
1157 | |||
1158 | reg = DPLL(pipe); |
||
1159 | val = I915_READ(reg); |
||
1160 | val |= DPLL_VCO_ENABLE; |
||
1161 | |||
1162 | /* We do this three times for luck */ |
||
1163 | I915_WRITE(reg, val); |
||
1164 | POSTING_READ(reg); |
||
1165 | udelay(150); /* wait for warmup */ |
||
1166 | I915_WRITE(reg, val); |
||
1167 | POSTING_READ(reg); |
||
1168 | udelay(150); /* wait for warmup */ |
||
1169 | I915_WRITE(reg, val); |
||
1170 | POSTING_READ(reg); |
||
1171 | udelay(150); /* wait for warmup */ |
||
1172 | } |
||
1173 | |||
1174 | /** |
||
1175 | * intel_disable_pll - disable a PLL |
||
1176 | * @dev_priv: i915 private structure |
||
1177 | * @pipe: pipe PLL to disable |
||
1178 | * |
||
1179 | * Disable the PLL for @pipe, making sure the pipe is off first. |
||
1180 | * |
||
1181 | * Note! This is for pre-ILK only. |
||
1182 | */ |
||
1183 | static void intel_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) |
||
1184 | { |
||
1185 | int reg; |
||
1186 | u32 val; |
||
1187 | |||
1188 | /* Don't disable pipe A or pipe A PLLs if needed */ |
||
1189 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) |
||
1190 | return; |
||
1191 | |||
1192 | /* Make sure the pipe isn't still relying on us */ |
||
1193 | assert_pipe_disabled(dev_priv, pipe); |
||
1194 | |||
1195 | reg = DPLL(pipe); |
||
1196 | val = I915_READ(reg); |
||
1197 | val &= ~DPLL_VCO_ENABLE; |
||
1198 | I915_WRITE(reg, val); |
||
1199 | POSTING_READ(reg); |
||
1200 | } |
||
1201 | |||
1202 | /** |
||
1203 | * intel_enable_pch_pll - enable PCH PLL |
||
1204 | * @dev_priv: i915 private structure |
||
1205 | * @pipe: pipe PLL to enable |
||
1206 | * |
||
1207 | * The PCH PLL needs to be enabled before the PCH transcoder, since it |
||
1208 | * drives the transcoder clock. |
||
1209 | */ |
||
1210 | static void intel_enable_pch_pll(struct drm_i915_private *dev_priv, |
||
1211 | enum pipe pipe) |
||
1212 | { |
||
1213 | int reg; |
||
1214 | u32 val; |
||
1215 | |||
2342 | Serge | 1216 | if (pipe > 1) |
1217 | return; |
||
1218 | |||
2327 | Serge | 1219 | /* PCH only available on ILK+ */ |
1220 | BUG_ON(dev_priv->info->gen < 5); |
||
1221 | |||
1222 | /* PCH refclock must be enabled first */ |
||
1223 | assert_pch_refclk_enabled(dev_priv); |
||
1224 | |||
1225 | reg = PCH_DPLL(pipe); |
||
1226 | val = I915_READ(reg); |
||
1227 | val |= DPLL_VCO_ENABLE; |
||
1228 | I915_WRITE(reg, val); |
||
1229 | POSTING_READ(reg); |
||
1230 | udelay(200); |
||
1231 | } |
||
1232 | |||
1233 | static void intel_disable_pch_pll(struct drm_i915_private *dev_priv, |
||
1234 | enum pipe pipe) |
||
1235 | { |
||
1236 | int reg; |
||
2342 | Serge | 1237 | u32 val, pll_mask = TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL, |
1238 | pll_sel = TRANSC_DPLL_ENABLE; |
||
2327 | Serge | 1239 | |
2342 | Serge | 1240 | if (pipe > 1) |
1241 | return; |
||
1242 | |||
2327 | Serge | 1243 | /* PCH only available on ILK+ */ |
1244 | BUG_ON(dev_priv->info->gen < 5); |
||
1245 | |||
1246 | /* Make sure transcoder isn't still depending on us */ |
||
1247 | assert_transcoder_disabled(dev_priv, pipe); |
||
1248 | |||
2342 | Serge | 1249 | if (pipe == 0) |
1250 | pll_sel |= TRANSC_DPLLA_SEL; |
||
1251 | else if (pipe == 1) |
||
1252 | pll_sel |= TRANSC_DPLLB_SEL; |
||
1253 | |||
1254 | |||
1255 | if ((I915_READ(PCH_DPLL_SEL) & pll_mask) == pll_sel) |
||
1256 | return; |
||
1257 | |||
2327 | Serge | 1258 | reg = PCH_DPLL(pipe); |
1259 | val = I915_READ(reg); |
||
1260 | val &= ~DPLL_VCO_ENABLE; |
||
1261 | I915_WRITE(reg, val); |
||
1262 | POSTING_READ(reg); |
||
1263 | udelay(200); |
||
1264 | } |
||
1265 | |||
1266 | static void intel_enable_transcoder(struct drm_i915_private *dev_priv, |
||
1267 | enum pipe pipe) |
||
1268 | { |
||
1269 | int reg; |
||
1270 | u32 val; |
||
1271 | |||
1272 | /* PCH only available on ILK+ */ |
||
1273 | BUG_ON(dev_priv->info->gen < 5); |
||
1274 | |||
1275 | /* Make sure PCH DPLL is enabled */ |
||
1276 | assert_pch_pll_enabled(dev_priv, pipe); |
||
1277 | |||
1278 | /* FDI must be feeding us bits for PCH ports */ |
||
1279 | assert_fdi_tx_enabled(dev_priv, pipe); |
||
1280 | assert_fdi_rx_enabled(dev_priv, pipe); |
||
1281 | |||
1282 | reg = TRANSCONF(pipe); |
||
1283 | val = I915_READ(reg); |
||
1284 | |||
1285 | if (HAS_PCH_IBX(dev_priv->dev)) { |
||
1286 | /* |
||
1287 | * make the BPC in transcoder be consistent with |
||
1288 | * that in pipeconf reg. |
||
1289 | */ |
||
1290 | val &= ~PIPE_BPC_MASK; |
||
1291 | val |= I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK; |
||
1292 | } |
||
1293 | I915_WRITE(reg, val | TRANS_ENABLE); |
||
1294 | if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100)) |
||
1295 | DRM_ERROR("failed to enable transcoder %d\n", pipe); |
||
1296 | } |
||
1297 | |||
1298 | static void intel_disable_transcoder(struct drm_i915_private *dev_priv, |
||
1299 | enum pipe pipe) |
||
1300 | { |
||
1301 | int reg; |
||
1302 | u32 val; |
||
1303 | |||
1304 | /* FDI relies on the transcoder */ |
||
1305 | assert_fdi_tx_disabled(dev_priv, pipe); |
||
1306 | assert_fdi_rx_disabled(dev_priv, pipe); |
||
1307 | |||
1308 | /* Ports must be off as well */ |
||
1309 | assert_pch_ports_disabled(dev_priv, pipe); |
||
1310 | |||
1311 | reg = TRANSCONF(pipe); |
||
1312 | val = I915_READ(reg); |
||
1313 | val &= ~TRANS_ENABLE; |
||
1314 | I915_WRITE(reg, val); |
||
1315 | /* wait for PCH transcoder off, transcoder state */ |
||
1316 | if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50)) |
||
2342 | Serge | 1317 | DRM_ERROR("failed to disable transcoder %d\n", pipe); |
2327 | Serge | 1318 | } |
1319 | |||
1320 | /** |
||
1321 | * intel_enable_pipe - enable a pipe, asserting requirements |
||
1322 | * @dev_priv: i915 private structure |
||
1323 | * @pipe: pipe to enable |
||
1324 | * @pch_port: on ILK+, is this pipe driving a PCH port or not |
||
1325 | * |
||
1326 | * Enable @pipe, making sure that various hardware specific requirements |
||
1327 | * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc. |
||
1328 | * |
||
1329 | * @pipe should be %PIPE_A or %PIPE_B. |
||
1330 | * |
||
1331 | * Will wait until the pipe is actually running (i.e. first vblank) before |
||
1332 | * returning. |
||
1333 | */ |
||
1334 | static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, |
||
1335 | bool pch_port) |
||
1336 | { |
||
1337 | int reg; |
||
1338 | u32 val; |
||
1339 | |||
1340 | /* |
||
1341 | * A pipe without a PLL won't actually be able to drive bits from |
||
1342 | * a plane. On ILK+ the pipe PLLs are integrated, so we don't |
||
1343 | * need the check. |
||
1344 | */ |
||
1345 | if (!HAS_PCH_SPLIT(dev_priv->dev)) |
||
1346 | assert_pll_enabled(dev_priv, pipe); |
||
1347 | else { |
||
1348 | if (pch_port) { |
||
1349 | /* if driving the PCH, we need FDI enabled */ |
||
1350 | assert_fdi_rx_pll_enabled(dev_priv, pipe); |
||
1351 | assert_fdi_tx_pll_enabled(dev_priv, pipe); |
||
1352 | } |
||
1353 | /* FIXME: assert CPU port conditions for SNB+ */ |
||
1354 | } |
||
1355 | |||
1356 | reg = PIPECONF(pipe); |
||
1357 | val = I915_READ(reg); |
||
1358 | if (val & PIPECONF_ENABLE) |
||
1359 | return; |
||
1360 | |||
1361 | I915_WRITE(reg, val | PIPECONF_ENABLE); |
||
1362 | intel_wait_for_vblank(dev_priv->dev, pipe); |
||
1363 | } |
||
1364 | |||
1365 | /** |
||
1366 | * intel_disable_pipe - disable a pipe, asserting requirements |
||
1367 | * @dev_priv: i915 private structure |
||
1368 | * @pipe: pipe to disable |
||
1369 | * |
||
1370 | * Disable @pipe, making sure that various hardware specific requirements |
||
1371 | * are met, if applicable, e.g. plane disabled, panel fitter off, etc. |
||
1372 | * |
||
1373 | * @pipe should be %PIPE_A or %PIPE_B. |
||
1374 | * |
||
1375 | * Will wait until the pipe has shut down before returning. |
||
1376 | */ |
||
1377 | static void intel_disable_pipe(struct drm_i915_private *dev_priv, |
||
1378 | enum pipe pipe) |
||
1379 | { |
||
1380 | int reg; |
||
1381 | u32 val; |
||
1382 | |||
1383 | /* |
||
1384 | * Make sure planes won't keep trying to pump pixels to us, |
||
1385 | * or we might hang the display. |
||
1386 | */ |
||
1387 | assert_planes_disabled(dev_priv, pipe); |
||
1388 | |||
1389 | /* Don't disable pipe A or pipe A PLLs if needed */ |
||
1390 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) |
||
1391 | return; |
||
1392 | |||
1393 | reg = PIPECONF(pipe); |
||
1394 | val = I915_READ(reg); |
||
1395 | if ((val & PIPECONF_ENABLE) == 0) |
||
1396 | return; |
||
1397 | |||
1398 | I915_WRITE(reg, val & ~PIPECONF_ENABLE); |
||
1399 | intel_wait_for_pipe_off(dev_priv->dev, pipe); |
||
1400 | } |
||
1401 | |||
1402 | /* |
||
1403 | * Plane regs are double buffered, going from enabled->disabled needs a |
||
1404 | * trigger in order to latch. The display address reg provides this. |
||
1405 | */ |
||
1406 | static void intel_flush_display_plane(struct drm_i915_private *dev_priv, |
||
1407 | enum plane plane) |
||
1408 | { |
||
1409 | I915_WRITE(DSPADDR(plane), I915_READ(DSPADDR(plane))); |
||
1410 | I915_WRITE(DSPSURF(plane), I915_READ(DSPSURF(plane))); |
||
1411 | } |
||
1412 | |||
1413 | /** |
||
1414 | * intel_enable_plane - enable a display plane on a given pipe |
||
1415 | * @dev_priv: i915 private structure |
||
1416 | * @plane: plane to enable |
||
1417 | * @pipe: pipe being fed |
||
1418 | * |
||
1419 | * Enable @plane on @pipe, making sure that @pipe is running first. |
||
1420 | */ |
||
1421 | static void intel_enable_plane(struct drm_i915_private *dev_priv, |
||
1422 | enum plane plane, enum pipe pipe) |
||
1423 | { |
||
1424 | int reg; |
||
1425 | u32 val; |
||
1426 | |||
1427 | /* If the pipe isn't enabled, we can't pump pixels and may hang */ |
||
1428 | assert_pipe_enabled(dev_priv, pipe); |
||
1429 | |||
1430 | reg = DSPCNTR(plane); |
||
1431 | val = I915_READ(reg); |
||
1432 | if (val & DISPLAY_PLANE_ENABLE) |
||
1433 | return; |
||
1434 | |||
1435 | I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE); |
||
1436 | intel_flush_display_plane(dev_priv, plane); |
||
1437 | intel_wait_for_vblank(dev_priv->dev, pipe); |
||
1438 | } |
||
1439 | |||
1440 | /** |
||
1441 | * intel_disable_plane - disable a display plane |
||
1442 | * @dev_priv: i915 private structure |
||
1443 | * @plane: plane to disable |
||
1444 | * @pipe: pipe consuming the data |
||
1445 | * |
||
1446 | * Disable @plane; should be an independent operation. |
||
1447 | */ |
||
1448 | static void intel_disable_plane(struct drm_i915_private *dev_priv, |
||
1449 | enum plane plane, enum pipe pipe) |
||
1450 | { |
||
1451 | int reg; |
||
1452 | u32 val; |
||
1453 | |||
1454 | reg = DSPCNTR(plane); |
||
1455 | val = I915_READ(reg); |
||
1456 | if ((val & DISPLAY_PLANE_ENABLE) == 0) |
||
1457 | return; |
||
1458 | |||
1459 | I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE); |
||
1460 | intel_flush_display_plane(dev_priv, plane); |
||
1461 | intel_wait_for_vblank(dev_priv->dev, pipe); |
||
1462 | } |
||
1463 | |||
1464 | static void disable_pch_dp(struct drm_i915_private *dev_priv, |
||
1465 | enum pipe pipe, int reg, u32 port_sel) |
||
1466 | { |
||
1467 | u32 val = I915_READ(reg); |
||
1468 | if (dp_pipe_enabled(dev_priv, pipe, port_sel, val)) { |
||
1469 | DRM_DEBUG_KMS("Disabling pch dp %x on pipe %d\n", reg, pipe); |
||
1470 | I915_WRITE(reg, val & ~DP_PORT_EN); |
||
1471 | } |
||
1472 | } |
||
1473 | |||
1474 | static void disable_pch_hdmi(struct drm_i915_private *dev_priv, |
||
1475 | enum pipe pipe, int reg) |
||
1476 | { |
||
1477 | u32 val = I915_READ(reg); |
||
1478 | if (hdmi_pipe_enabled(dev_priv, val, pipe)) { |
||
1479 | DRM_DEBUG_KMS("Disabling pch HDMI %x on pipe %d\n", |
||
1480 | reg, pipe); |
||
1481 | I915_WRITE(reg, val & ~PORT_ENABLE); |
||
1482 | } |
||
1483 | } |
||
1484 | |||
1485 | /* Disable any ports connected to this transcoder */ |
||
1486 | static void intel_disable_pch_ports(struct drm_i915_private *dev_priv, |
||
1487 | enum pipe pipe) |
||
1488 | { |
||
1489 | u32 reg, val; |
||
1490 | |||
1491 | val = I915_READ(PCH_PP_CONTROL); |
||
1492 | I915_WRITE(PCH_PP_CONTROL, val | PANEL_UNLOCK_REGS); |
||
1493 | |||
1494 | disable_pch_dp(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); |
||
1495 | disable_pch_dp(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); |
||
1496 | disable_pch_dp(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); |
||
1497 | |||
1498 | reg = PCH_ADPA; |
||
1499 | val = I915_READ(reg); |
||
1500 | if (adpa_pipe_enabled(dev_priv, val, pipe)) |
||
1501 | I915_WRITE(reg, val & ~ADPA_DAC_ENABLE); |
||
1502 | |||
1503 | reg = PCH_LVDS; |
||
1504 | val = I915_READ(reg); |
||
1505 | if (lvds_pipe_enabled(dev_priv, val, pipe)) { |
||
1506 | DRM_DEBUG_KMS("disable lvds on pipe %d val 0x%08x\n", pipe, val); |
||
1507 | I915_WRITE(reg, val & ~LVDS_PORT_EN); |
||
1508 | POSTING_READ(reg); |
||
1509 | udelay(100); |
||
1510 | } |
||
1511 | |||
1512 | disable_pch_hdmi(dev_priv, pipe, HDMIB); |
||
1513 | disable_pch_hdmi(dev_priv, pipe, HDMIC); |
||
1514 | disable_pch_hdmi(dev_priv, pipe, HDMID); |
||
1515 | } |
||
1516 | |||
1517 | static void i8xx_disable_fbc(struct drm_device *dev) |
||
1518 | { |
||
1519 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
1520 | u32 fbc_ctl; |
||
1521 | |||
1522 | /* Disable compression */ |
||
1523 | fbc_ctl = I915_READ(FBC_CONTROL); |
||
1524 | if ((fbc_ctl & FBC_CTL_EN) == 0) |
||
1525 | return; |
||
1526 | |||
1527 | fbc_ctl &= ~FBC_CTL_EN; |
||
1528 | I915_WRITE(FBC_CONTROL, fbc_ctl); |
||
1529 | |||
1530 | /* Wait for compressing bit to clear */ |
||
1531 | if (wait_for((I915_READ(FBC_STATUS) & FBC_STAT_COMPRESSING) == 0, 10)) { |
||
1532 | DRM_DEBUG_KMS("FBC idle timed out\n"); |
||
1533 | return; |
||
1534 | } |
||
1535 | |||
1536 | DRM_DEBUG_KMS("disabled FBC\n"); |
||
1537 | } |
||
1538 | |||
1539 | static void i8xx_enable_fbc(struct drm_crtc *crtc, unsigned long interval) |
||
1540 | { |
||
1541 | struct drm_device *dev = crtc->dev; |
||
1542 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
1543 | struct drm_framebuffer *fb = crtc->fb; |
||
1544 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); |
||
1545 | struct drm_i915_gem_object *obj = intel_fb->obj; |
||
1546 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
1547 | int cfb_pitch; |
||
1548 | int plane, i; |
||
1549 | u32 fbc_ctl, fbc_ctl2; |
||
1550 | |||
1551 | cfb_pitch = dev_priv->cfb_size / FBC_LL_SIZE; |
||
2342 | Serge | 1552 | if (fb->pitches[0] < cfb_pitch) |
1553 | cfb_pitch = fb->pitches[0]; |
||
2327 | Serge | 1554 | |
1555 | /* FBC_CTL wants 64B units */ |
||
1556 | cfb_pitch = (cfb_pitch / 64) - 1; |
||
1557 | plane = intel_crtc->plane == 0 ? FBC_CTL_PLANEA : FBC_CTL_PLANEB; |
||
1558 | |||
1559 | /* Clear old tags */ |
||
1560 | for (i = 0; i < (FBC_LL_SIZE / 32) + 1; i++) |
||
1561 | I915_WRITE(FBC_TAG + (i * 4), 0); |
||
1562 | |||
1563 | /* Set it up... */ |
||
1564 | fbc_ctl2 = FBC_CTL_FENCE_DBL | FBC_CTL_IDLE_IMM | FBC_CTL_CPU_FENCE; |
||
1565 | fbc_ctl2 |= plane; |
||
1566 | I915_WRITE(FBC_CONTROL2, fbc_ctl2); |
||
1567 | I915_WRITE(FBC_FENCE_OFF, crtc->y); |
||
1568 | |||
1569 | /* enable it... */ |
||
1570 | fbc_ctl = FBC_CTL_EN | FBC_CTL_PERIODIC; |
||
1571 | if (IS_I945GM(dev)) |
||
1572 | fbc_ctl |= FBC_CTL_C3_IDLE; /* 945 needs special SR handling */ |
||
1573 | fbc_ctl |= (cfb_pitch & 0xff) << FBC_CTL_STRIDE_SHIFT; |
||
1574 | fbc_ctl |= (interval & 0x2fff) << FBC_CTL_INTERVAL_SHIFT; |
||
1575 | fbc_ctl |= obj->fence_reg; |
||
1576 | I915_WRITE(FBC_CONTROL, fbc_ctl); |
||
1577 | |||
1578 | DRM_DEBUG_KMS("enabled FBC, pitch %d, yoff %d, plane %d, ", |
||
1579 | cfb_pitch, crtc->y, intel_crtc->plane); |
||
1580 | } |
||
1581 | |||
1582 | static bool i8xx_fbc_enabled(struct drm_device *dev) |
||
1583 | { |
||
1584 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
1585 | |||
1586 | return I915_READ(FBC_CONTROL) & FBC_CTL_EN; |
||
1587 | } |
||
1588 | |||
1589 | static void g4x_enable_fbc(struct drm_crtc *crtc, unsigned long interval) |
||
1590 | { |
||
1591 | struct drm_device *dev = crtc->dev; |
||
1592 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
1593 | struct drm_framebuffer *fb = crtc->fb; |
||
1594 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); |
||
1595 | struct drm_i915_gem_object *obj = intel_fb->obj; |
||
1596 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
1597 | int plane = intel_crtc->plane == 0 ? DPFC_CTL_PLANEA : DPFC_CTL_PLANEB; |
||
1598 | unsigned long stall_watermark = 200; |
||
1599 | u32 dpfc_ctl; |
||
1600 | |||
1601 | dpfc_ctl = plane | DPFC_SR_EN | DPFC_CTL_LIMIT_1X; |
||
1602 | dpfc_ctl |= DPFC_CTL_FENCE_EN | obj->fence_reg; |
||
1603 | I915_WRITE(DPFC_CHICKEN, DPFC_HT_MODIFY); |
||
1604 | |||
1605 | I915_WRITE(DPFC_RECOMP_CTL, DPFC_RECOMP_STALL_EN | |
||
1606 | (stall_watermark << DPFC_RECOMP_STALL_WM_SHIFT) | |
||
1607 | (interval << DPFC_RECOMP_TIMER_COUNT_SHIFT)); |
||
1608 | I915_WRITE(DPFC_FENCE_YOFF, crtc->y); |
||
1609 | |||
1610 | /* enable it... */ |
||
1611 | I915_WRITE(DPFC_CONTROL, I915_READ(DPFC_CONTROL) | DPFC_CTL_EN); |
||
1612 | |||
1613 | DRM_DEBUG_KMS("enabled fbc on plane %d\n", intel_crtc->plane); |
||
1614 | } |
||
1615 | |||
1616 | static void g4x_disable_fbc(struct drm_device *dev) |
||
1617 | { |
||
1618 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
1619 | u32 dpfc_ctl; |
||
1620 | |||
1621 | /* Disable compression */ |
||
1622 | dpfc_ctl = I915_READ(DPFC_CONTROL); |
||
1623 | if (dpfc_ctl & DPFC_CTL_EN) { |
||
1624 | dpfc_ctl &= ~DPFC_CTL_EN; |
||
1625 | I915_WRITE(DPFC_CONTROL, dpfc_ctl); |
||
1626 | |||
1627 | DRM_DEBUG_KMS("disabled FBC\n"); |
||
1628 | } |
||
1629 | } |
||
1630 | |||
1631 | static bool g4x_fbc_enabled(struct drm_device *dev) |
||
1632 | { |
||
1633 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
1634 | |||
1635 | return I915_READ(DPFC_CONTROL) & DPFC_CTL_EN; |
||
1636 | } |
||
1637 | |||
1638 | static void sandybridge_blit_fbc_update(struct drm_device *dev) |
||
1639 | { |
||
1640 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
1641 | u32 blt_ecoskpd; |
||
1642 | |||
1643 | /* Make sure blitter notifies FBC of writes */ |
||
1644 | gen6_gt_force_wake_get(dev_priv); |
||
1645 | blt_ecoskpd = I915_READ(GEN6_BLITTER_ECOSKPD); |
||
1646 | blt_ecoskpd |= GEN6_BLITTER_FBC_NOTIFY << |
||
1647 | GEN6_BLITTER_LOCK_SHIFT; |
||
1648 | I915_WRITE(GEN6_BLITTER_ECOSKPD, blt_ecoskpd); |
||
1649 | blt_ecoskpd |= GEN6_BLITTER_FBC_NOTIFY; |
||
1650 | I915_WRITE(GEN6_BLITTER_ECOSKPD, blt_ecoskpd); |
||
1651 | blt_ecoskpd &= ~(GEN6_BLITTER_FBC_NOTIFY << |
||
1652 | GEN6_BLITTER_LOCK_SHIFT); |
||
1653 | I915_WRITE(GEN6_BLITTER_ECOSKPD, blt_ecoskpd); |
||
1654 | POSTING_READ(GEN6_BLITTER_ECOSKPD); |
||
1655 | gen6_gt_force_wake_put(dev_priv); |
||
1656 | } |
||
1657 | |||
1658 | static void ironlake_enable_fbc(struct drm_crtc *crtc, unsigned long interval) |
||
1659 | { |
||
1660 | struct drm_device *dev = crtc->dev; |
||
1661 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
1662 | struct drm_framebuffer *fb = crtc->fb; |
||
1663 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); |
||
1664 | struct drm_i915_gem_object *obj = intel_fb->obj; |
||
1665 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
1666 | int plane = intel_crtc->plane == 0 ? DPFC_CTL_PLANEA : DPFC_CTL_PLANEB; |
||
1667 | unsigned long stall_watermark = 200; |
||
1668 | u32 dpfc_ctl; |
||
1669 | |||
1670 | dpfc_ctl = I915_READ(ILK_DPFC_CONTROL); |
||
1671 | dpfc_ctl &= DPFC_RESERVED; |
||
1672 | dpfc_ctl |= (plane | DPFC_CTL_LIMIT_1X); |
||
1673 | /* Set persistent mode for front-buffer rendering, ala X. */ |
||
1674 | dpfc_ctl |= DPFC_CTL_PERSISTENT_MODE; |
||
1675 | dpfc_ctl |= (DPFC_CTL_FENCE_EN | obj->fence_reg); |
||
1676 | I915_WRITE(ILK_DPFC_CHICKEN, DPFC_HT_MODIFY); |
||
1677 | |||
1678 | I915_WRITE(ILK_DPFC_RECOMP_CTL, DPFC_RECOMP_STALL_EN | |
||
1679 | (stall_watermark << DPFC_RECOMP_STALL_WM_SHIFT) | |
||
1680 | (interval << DPFC_RECOMP_TIMER_COUNT_SHIFT)); |
||
1681 | I915_WRITE(ILK_DPFC_FENCE_YOFF, crtc->y); |
||
1682 | I915_WRITE(ILK_FBC_RT_BASE, obj->gtt_offset | ILK_FBC_RT_VALID); |
||
1683 | /* enable it... */ |
||
1684 | I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl | DPFC_CTL_EN); |
||
1685 | |||
1686 | if (IS_GEN6(dev)) { |
||
1687 | I915_WRITE(SNB_DPFC_CTL_SA, |
||
1688 | SNB_CPU_FENCE_ENABLE | obj->fence_reg); |
||
1689 | I915_WRITE(DPFC_CPU_FENCE_OFFSET, crtc->y); |
||
1690 | sandybridge_blit_fbc_update(dev); |
||
1691 | } |
||
1692 | |||
1693 | DRM_DEBUG_KMS("enabled fbc on plane %d\n", intel_crtc->plane); |
||
1694 | } |
||
1695 | |||
1696 | static void ironlake_disable_fbc(struct drm_device *dev) |
||
1697 | { |
||
1698 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
1699 | u32 dpfc_ctl; |
||
1700 | |||
1701 | /* Disable compression */ |
||
1702 | dpfc_ctl = I915_READ(ILK_DPFC_CONTROL); |
||
1703 | if (dpfc_ctl & DPFC_CTL_EN) { |
||
1704 | dpfc_ctl &= ~DPFC_CTL_EN; |
||
1705 | I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl); |
||
1706 | |||
1707 | DRM_DEBUG_KMS("disabled FBC\n"); |
||
1708 | } |
||
1709 | } |
||
1710 | |||
1711 | static bool ironlake_fbc_enabled(struct drm_device *dev) |
||
1712 | { |
||
1713 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
1714 | |||
1715 | return I915_READ(ILK_DPFC_CONTROL) & DPFC_CTL_EN; |
||
1716 | } |
||
1717 | |||
1718 | bool intel_fbc_enabled(struct drm_device *dev) |
||
1719 | { |
||
1720 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
1721 | |||
1722 | if (!dev_priv->display.fbc_enabled) |
||
1723 | return false; |
||
1724 | |||
1725 | return dev_priv->display.fbc_enabled(dev); |
||
1726 | } |
||
1727 | |||
1728 | |||
1729 | |||
1730 | |||
1731 | |||
1732 | |||
1733 | |||
1734 | |||
1735 | |||
1736 | |||
1737 | static void intel_enable_fbc(struct drm_crtc *crtc, unsigned long interval) |
||
1738 | { |
||
1739 | struct intel_fbc_work *work; |
||
1740 | struct drm_device *dev = crtc->dev; |
||
1741 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
1742 | |||
1743 | if (!dev_priv->display.enable_fbc) |
||
1744 | return; |
||
1745 | |||
1746 | // intel_cancel_fbc_work(dev_priv); |
||
1747 | |||
1748 | // work = kzalloc(sizeof *work, GFP_KERNEL); |
||
1749 | // if (work == NULL) { |
||
1750 | // dev_priv->display.enable_fbc(crtc, interval); |
||
1751 | // return; |
||
1752 | // } |
||
1753 | |||
1754 | // work->crtc = crtc; |
||
1755 | // work->fb = crtc->fb; |
||
1756 | // work->interval = interval; |
||
1757 | // INIT_DELAYED_WORK(&work->work, intel_fbc_work_fn); |
||
1758 | |||
1759 | // dev_priv->fbc_work = work; |
||
1760 | |||
1761 | DRM_DEBUG_KMS("scheduling delayed FBC enable\n"); |
||
1762 | |||
1763 | /* Delay the actual enabling to let pageflipping cease and the |
||
1764 | * display to settle before starting the compression. Note that |
||
1765 | * this delay also serves a second purpose: it allows for a |
||
1766 | * vblank to pass after disabling the FBC before we attempt |
||
1767 | * to modify the control registers. |
||
1768 | * |
||
1769 | * A more complicated solution would involve tracking vblanks |
||
1770 | * following the termination of the page-flipping sequence |
||
1771 | * and indeed performing the enable as a co-routine and not |
||
1772 | * waiting synchronously upon the vblank. |
||
1773 | */ |
||
1774 | // schedule_delayed_work(&work->work, msecs_to_jiffies(50)); |
||
1775 | } |
||
1776 | |||
1777 | void intel_disable_fbc(struct drm_device *dev) |
||
1778 | { |
||
1779 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
1780 | |||
1781 | // intel_cancel_fbc_work(dev_priv); |
||
1782 | |||
1783 | if (!dev_priv->display.disable_fbc) |
||
1784 | return; |
||
1785 | |||
1786 | dev_priv->display.disable_fbc(dev); |
||
1787 | dev_priv->cfb_plane = -1; |
||
1788 | } |
||
1789 | |||
1790 | /** |
||
1791 | * intel_update_fbc - enable/disable FBC as needed |
||
1792 | * @dev: the drm_device |
||
1793 | * |
||
1794 | * Set up the framebuffer compression hardware at mode set time. We |
||
1795 | * enable it if possible: |
||
1796 | * - plane A only (on pre-965) |
||
1797 | * - no pixel mulitply/line duplication |
||
1798 | * - no alpha buffer discard |
||
1799 | * - no dual wide |
||
1800 | * - framebuffer <= 2048 in width, 1536 in height |
||
1801 | * |
||
1802 | * We can't assume that any compression will take place (worst case), |
||
1803 | * so the compressed buffer has to be the same size as the uncompressed |
||
1804 | * one. It also must reside (along with the line length buffer) in |
||
1805 | * stolen memory. |
||
1806 | * |
||
1807 | * We need to enable/disable FBC on a global basis. |
||
1808 | */ |
||
1809 | static void intel_update_fbc(struct drm_device *dev) |
||
1810 | { |
||
1811 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
1812 | struct drm_crtc *crtc = NULL, *tmp_crtc; |
||
1813 | struct intel_crtc *intel_crtc; |
||
1814 | struct drm_framebuffer *fb; |
||
1815 | struct intel_framebuffer *intel_fb; |
||
1816 | struct drm_i915_gem_object *obj; |
||
2342 | Serge | 1817 | int enable_fbc; |
2327 | Serge | 1818 | |
1819 | DRM_DEBUG_KMS("\n"); |
||
1820 | |||
1821 | if (!i915_powersave) |
||
1822 | return; |
||
1823 | |||
1824 | if (!I915_HAS_FBC(dev)) |
||
1825 | return; |
||
1826 | |||
1827 | /* |
||
1828 | * If FBC is already on, we just have to verify that we can |
||
1829 | * keep it that way... |
||
1830 | * Need to disable if: |
||
1831 | * - more than one pipe is active |
||
1832 | * - changing FBC params (stride, fence, mode) |
||
1833 | * - new fb is too large to fit in compressed buffer |
||
1834 | * - going to an unsupported config (interlace, pixel multiply, etc.) |
||
1835 | */ |
||
1836 | list_for_each_entry(tmp_crtc, &dev->mode_config.crtc_list, head) { |
||
1837 | if (tmp_crtc->enabled && tmp_crtc->fb) { |
||
1838 | if (crtc) { |
||
1839 | DRM_DEBUG_KMS("more than one pipe active, disabling compression\n"); |
||
2336 | Serge | 1840 | dev_priv->no_fbc_reason = FBC_MULTIPLE_PIPES; |
2327 | Serge | 1841 | goto out_disable; |
1842 | } |
||
1843 | crtc = tmp_crtc; |
||
1844 | } |
||
1845 | } |
||
1846 | |||
1847 | if (!crtc || crtc->fb == NULL) { |
||
1848 | DRM_DEBUG_KMS("no output, disabling\n"); |
||
2336 | Serge | 1849 | dev_priv->no_fbc_reason = FBC_NO_OUTPUT; |
2327 | Serge | 1850 | goto out_disable; |
1851 | } |
||
1852 | |||
1853 | intel_crtc = to_intel_crtc(crtc); |
||
1854 | fb = crtc->fb; |
||
1855 | intel_fb = to_intel_framebuffer(fb); |
||
1856 | obj = intel_fb->obj; |
||
1857 | |||
2342 | Serge | 1858 | enable_fbc = i915_enable_fbc; |
1859 | if (enable_fbc < 0) { |
||
1860 | DRM_DEBUG_KMS("fbc set to per-chip default\n"); |
||
1861 | enable_fbc = 1; |
||
1862 | if (INTEL_INFO(dev)->gen <= 5) |
||
1863 | enable_fbc = 0; |
||
1864 | } |
||
1865 | if (!enable_fbc) { |
||
1866 | DRM_DEBUG_KMS("fbc disabled per module param\n"); |
||
2336 | Serge | 1867 | dev_priv->no_fbc_reason = FBC_MODULE_PARAM; |
2327 | Serge | 1868 | goto out_disable; |
1869 | } |
||
1870 | if (intel_fb->obj->base.size > dev_priv->cfb_size) { |
||
1871 | DRM_DEBUG_KMS("framebuffer too large, disabling " |
||
1872 | "compression\n"); |
||
2336 | Serge | 1873 | dev_priv->no_fbc_reason = FBC_STOLEN_TOO_SMALL; |
2327 | Serge | 1874 | goto out_disable; |
1875 | } |
||
1876 | if ((crtc->mode.flags & DRM_MODE_FLAG_INTERLACE) || |
||
1877 | (crtc->mode.flags & DRM_MODE_FLAG_DBLSCAN)) { |
||
1878 | DRM_DEBUG_KMS("mode incompatible with compression, " |
||
1879 | "disabling\n"); |
||
2336 | Serge | 1880 | dev_priv->no_fbc_reason = FBC_UNSUPPORTED_MODE; |
2327 | Serge | 1881 | goto out_disable; |
1882 | } |
||
1883 | if ((crtc->mode.hdisplay > 2048) || |
||
1884 | (crtc->mode.vdisplay > 1536)) { |
||
1885 | DRM_DEBUG_KMS("mode too large for compression, disabling\n"); |
||
2336 | Serge | 1886 | dev_priv->no_fbc_reason = FBC_MODE_TOO_LARGE; |
2327 | Serge | 1887 | goto out_disable; |
1888 | } |
||
1889 | if ((IS_I915GM(dev) || IS_I945GM(dev)) && intel_crtc->plane != 0) { |
||
1890 | DRM_DEBUG_KMS("plane not 0, disabling compression\n"); |
||
2336 | Serge | 1891 | dev_priv->no_fbc_reason = FBC_BAD_PLANE; |
2327 | Serge | 1892 | goto out_disable; |
1893 | } |
||
1894 | |||
1895 | /* The use of a CPU fence is mandatory in order to detect writes |
||
1896 | * by the CPU to the scanout and trigger updates to the FBC. |
||
1897 | */ |
||
1898 | // if (obj->tiling_mode != I915_TILING_X || |
||
1899 | // obj->fence_reg == I915_FENCE_REG_NONE) { |
||
1900 | // DRM_DEBUG_KMS("framebuffer not tiled or fenced, disabling compression\n"); |
||
1901 | // dev_priv->no_fbc_reason = FBC_NOT_TILED; |
||
1902 | // goto out_disable; |
||
1903 | // } |
||
1904 | |||
1905 | /* If the kernel debugger is active, always disable compression */ |
||
1906 | if (in_dbg_master()) |
||
1907 | goto out_disable; |
||
1908 | |||
1909 | /* If the scanout has not changed, don't modify the FBC settings. |
||
1910 | * Note that we make the fundamental assumption that the fb->obj |
||
1911 | * cannot be unpinned (and have its GTT offset and fence revoked) |
||
1912 | * without first being decoupled from the scanout and FBC disabled. |
||
1913 | */ |
||
1914 | if (dev_priv->cfb_plane == intel_crtc->plane && |
||
1915 | dev_priv->cfb_fb == fb->base.id && |
||
1916 | dev_priv->cfb_y == crtc->y) |
||
1917 | return; |
||
1918 | |||
1919 | if (intel_fbc_enabled(dev)) { |
||
1920 | /* We update FBC along two paths, after changing fb/crtc |
||
1921 | * configuration (modeswitching) and after page-flipping |
||
1922 | * finishes. For the latter, we know that not only did |
||
1923 | * we disable the FBC at the start of the page-flip |
||
1924 | * sequence, but also more than one vblank has passed. |
||
1925 | * |
||
1926 | * For the former case of modeswitching, it is possible |
||
1927 | * to switch between two FBC valid configurations |
||
1928 | * instantaneously so we do need to disable the FBC |
||
1929 | * before we can modify its control registers. We also |
||
1930 | * have to wait for the next vblank for that to take |
||
1931 | * effect. However, since we delay enabling FBC we can |
||
1932 | * assume that a vblank has passed since disabling and |
||
1933 | * that we can safely alter the registers in the deferred |
||
1934 | * callback. |
||
1935 | * |
||
1936 | * In the scenario that we go from a valid to invalid |
||
1937 | * and then back to valid FBC configuration we have |
||
1938 | * no strict enforcement that a vblank occurred since |
||
1939 | * disabling the FBC. However, along all current pipe |
||
1940 | * disabling paths we do need to wait for a vblank at |
||
1941 | * some point. And we wait before enabling FBC anyway. |
||
1942 | */ |
||
1943 | DRM_DEBUG_KMS("disabling active FBC for update\n"); |
||
1944 | intel_disable_fbc(dev); |
||
1945 | } |
||
1946 | |||
1947 | intel_enable_fbc(crtc, 500); |
||
1948 | return; |
||
1949 | |||
1950 | out_disable: |
||
1951 | /* Multiple disables should be harmless */ |
||
1952 | if (intel_fbc_enabled(dev)) { |
||
1953 | DRM_DEBUG_KMS("unsupported config, disabling FBC\n"); |
||
1954 | intel_disable_fbc(dev); |
||
1955 | } |
||
1956 | } |
||
1957 | |||
2335 | Serge | 1958 | int |
1959 | intel_pin_and_fence_fb_obj(struct drm_device *dev, |
||
1960 | struct drm_i915_gem_object *obj, |
||
1961 | struct intel_ring_buffer *pipelined) |
||
1962 | { |
||
1963 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
1964 | u32 alignment; |
||
1965 | int ret; |
||
2327 | Serge | 1966 | |
2335 | Serge | 1967 | switch (obj->tiling_mode) { |
1968 | case I915_TILING_NONE: |
||
1969 | if (IS_BROADWATER(dev) || IS_CRESTLINE(dev)) |
||
1970 | alignment = 128 * 1024; |
||
1971 | else if (INTEL_INFO(dev)->gen >= 4) |
||
1972 | alignment = 4 * 1024; |
||
1973 | else |
||
1974 | alignment = 64 * 1024; |
||
1975 | break; |
||
1976 | case I915_TILING_X: |
||
1977 | /* pin() will align the object as required by fence */ |
||
1978 | alignment = 0; |
||
1979 | break; |
||
1980 | case I915_TILING_Y: |
||
1981 | /* FIXME: Is this true? */ |
||
1982 | DRM_ERROR("Y tiled not allowed for scan out buffers\n"); |
||
1983 | return -EINVAL; |
||
1984 | default: |
||
1985 | BUG(); |
||
1986 | } |
||
2327 | Serge | 1987 | |
2335 | Serge | 1988 | dev_priv->mm.interruptible = false; |
1989 | ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined); |
||
1990 | if (ret) |
||
1991 | goto err_interruptible; |
||
2327 | Serge | 1992 | |
2335 | Serge | 1993 | /* Install a fence for tiled scan-out. Pre-i965 always needs a |
1994 | * fence, whereas 965+ only requires a fence if using |
||
1995 | * framebuffer compression. For simplicity, we always install |
||
1996 | * a fence as the cost is not that onerous. |
||
1997 | */ |
||
1998 | // if (obj->tiling_mode != I915_TILING_NONE) { |
||
1999 | // ret = i915_gem_object_get_fence(obj, pipelined); |
||
2000 | // if (ret) |
||
2001 | // goto err_unpin; |
||
2002 | // } |
||
2327 | Serge | 2003 | |
2335 | Serge | 2004 | dev_priv->mm.interruptible = true; |
2005 | return 0; |
||
2327 | Serge | 2006 | |
2335 | Serge | 2007 | err_unpin: |
2344 | Serge | 2008 | i915_gem_object_unpin(obj); |
2335 | Serge | 2009 | err_interruptible: |
2010 | dev_priv->mm.interruptible = true; |
||
2011 | return ret; |
||
2012 | } |
||
2327 | Serge | 2013 | |
2014 | static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb, |
||
2015 | int x, int y) |
||
2016 | { |
||
2017 | struct drm_device *dev = crtc->dev; |
||
2018 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2019 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2020 | struct intel_framebuffer *intel_fb; |
||
2021 | struct drm_i915_gem_object *obj; |
||
2022 | int plane = intel_crtc->plane; |
||
2023 | unsigned long Start, Offset; |
||
2024 | u32 dspcntr; |
||
2025 | u32 reg; |
||
2026 | |||
2027 | switch (plane) { |
||
2028 | case 0: |
||
2029 | case 1: |
||
2030 | break; |
||
2031 | default: |
||
2032 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); |
||
2033 | return -EINVAL; |
||
2034 | } |
||
2035 | |||
2036 | intel_fb = to_intel_framebuffer(fb); |
||
2037 | obj = intel_fb->obj; |
||
2038 | |||
2039 | reg = DSPCNTR(plane); |
||
2040 | dspcntr = I915_READ(reg); |
||
2041 | /* Mask out pixel format bits in case we change it */ |
||
2042 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; |
||
2043 | switch (fb->bits_per_pixel) { |
||
2044 | case 8: |
||
2045 | dspcntr |= DISPPLANE_8BPP; |
||
2046 | break; |
||
2047 | case 16: |
||
2048 | if (fb->depth == 15) |
||
2049 | dspcntr |= DISPPLANE_15_16BPP; |
||
2050 | else |
||
2051 | dspcntr |= DISPPLANE_16BPP; |
||
2052 | break; |
||
2053 | case 24: |
||
2054 | case 32: |
||
2055 | dspcntr |= DISPPLANE_32BPP_NO_ALPHA; |
||
2056 | break; |
||
2057 | default: |
||
2058 | DRM_ERROR("Unknown color depth %d\n", fb->bits_per_pixel); |
||
2059 | return -EINVAL; |
||
2060 | } |
||
2061 | if (INTEL_INFO(dev)->gen >= 4) { |
||
2062 | if (obj->tiling_mode != I915_TILING_NONE) |
||
2063 | dspcntr |= DISPPLANE_TILED; |
||
2064 | else |
||
2065 | dspcntr &= ~DISPPLANE_TILED; |
||
2066 | } |
||
2067 | |||
2068 | I915_WRITE(reg, dspcntr); |
||
2069 | |||
2070 | Start = obj->gtt_offset; |
||
2342 | Serge | 2071 | Offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); |
2327 | Serge | 2072 | |
2073 | DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n", |
||
2342 | Serge | 2074 | Start, Offset, x, y, fb->pitches[0]); |
2075 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
||
2327 | Serge | 2076 | if (INTEL_INFO(dev)->gen >= 4) { |
2077 | I915_WRITE(DSPSURF(plane), Start); |
||
2078 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
||
2079 | I915_WRITE(DSPADDR(plane), Offset); |
||
2080 | } else |
||
2081 | I915_WRITE(DSPADDR(plane), Start + Offset); |
||
2082 | POSTING_READ(reg); |
||
2083 | |||
2084 | return 0; |
||
2085 | } |
||
2086 | |||
2087 | static int ironlake_update_plane(struct drm_crtc *crtc, |
||
2088 | struct drm_framebuffer *fb, int x, int y) |
||
2089 | { |
||
2090 | struct drm_device *dev = crtc->dev; |
||
2091 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2092 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2093 | struct intel_framebuffer *intel_fb; |
||
2094 | struct drm_i915_gem_object *obj; |
||
2095 | int plane = intel_crtc->plane; |
||
2096 | unsigned long Start, Offset; |
||
2097 | u32 dspcntr; |
||
2098 | u32 reg; |
||
2099 | |||
2100 | switch (plane) { |
||
2101 | case 0: |
||
2102 | case 1: |
||
2342 | Serge | 2103 | case 2: |
2327 | Serge | 2104 | break; |
2105 | default: |
||
2106 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); |
||
2107 | return -EINVAL; |
||
2108 | } |
||
2109 | |||
2110 | intel_fb = to_intel_framebuffer(fb); |
||
2111 | obj = intel_fb->obj; |
||
2112 | |||
2113 | reg = DSPCNTR(plane); |
||
2114 | dspcntr = I915_READ(reg); |
||
2115 | /* Mask out pixel format bits in case we change it */ |
||
2116 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; |
||
2117 | switch (fb->bits_per_pixel) { |
||
2118 | case 8: |
||
2119 | dspcntr |= DISPPLANE_8BPP; |
||
2120 | break; |
||
2121 | case 16: |
||
2122 | if (fb->depth != 16) |
||
2123 | return -EINVAL; |
||
2124 | |||
2125 | dspcntr |= DISPPLANE_16BPP; |
||
2126 | break; |
||
2127 | case 24: |
||
2128 | case 32: |
||
2129 | if (fb->depth == 24) |
||
2130 | dspcntr |= DISPPLANE_32BPP_NO_ALPHA; |
||
2131 | else if (fb->depth == 30) |
||
2132 | dspcntr |= DISPPLANE_32BPP_30BIT_NO_ALPHA; |
||
2133 | else |
||
2134 | return -EINVAL; |
||
2135 | break; |
||
2136 | default: |
||
2137 | DRM_ERROR("Unknown color depth %d\n", fb->bits_per_pixel); |
||
2138 | return -EINVAL; |
||
2139 | } |
||
2140 | |||
2141 | // if (obj->tiling_mode != I915_TILING_NONE) |
||
2142 | // dspcntr |= DISPPLANE_TILED; |
||
2143 | // else |
||
2144 | dspcntr &= ~DISPPLANE_TILED; |
||
2145 | |||
2146 | /* must disable */ |
||
2147 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; |
||
2148 | |||
2149 | I915_WRITE(reg, dspcntr); |
||
2150 | |||
2336 | Serge | 2151 | Start = obj->gtt_offset; |
2342 | Serge | 2152 | Offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); |
2327 | Serge | 2153 | |
2154 | DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n", |
||
2342 | Serge | 2155 | Start, Offset, x, y, fb->pitches[0]); |
2156 | I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]); |
||
2330 | Serge | 2157 | I915_WRITE(DSPSURF(plane), Start); |
2158 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
||
2159 | I915_WRITE(DSPADDR(plane), Offset); |
||
2160 | POSTING_READ(reg); |
||
2327 | Serge | 2161 | |
2162 | return 0; |
||
2163 | } |
||
2164 | |||
2165 | /* Assume fb object is pinned & idle & fenced and just update base pointers */ |
||
2166 | static int |
||
2167 | intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb, |
||
2168 | int x, int y, enum mode_set_atomic state) |
||
2169 | { |
||
2170 | struct drm_device *dev = crtc->dev; |
||
2171 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2172 | int ret; |
||
2173 | |||
2336 | Serge | 2174 | ENTER(); |
2175 | |||
2327 | Serge | 2176 | ret = dev_priv->display.update_plane(crtc, fb, x, y); |
2177 | if (ret) |
||
2336 | Serge | 2178 | { |
2179 | LEAVE(); |
||
2327 | Serge | 2180 | return ret; |
2336 | Serge | 2181 | }; |
2327 | Serge | 2182 | |
2183 | intel_update_fbc(dev); |
||
2184 | intel_increase_pllclock(crtc); |
||
2336 | Serge | 2185 | LEAVE(); |
2327 | Serge | 2186 | |
2187 | return 0; |
||
2188 | } |
||
2189 | |||
2190 | static int |
||
2191 | intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, |
||
2192 | struct drm_framebuffer *old_fb) |
||
2193 | { |
||
2194 | struct drm_device *dev = crtc->dev; |
||
2195 | struct drm_i915_master_private *master_priv; |
||
2196 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2342 | Serge | 2197 | int ret; |
2327 | Serge | 2198 | |
2336 | Serge | 2199 | ENTER(); |
2200 | |||
2327 | Serge | 2201 | /* no fb bound */ |
2202 | if (!crtc->fb) { |
||
2203 | DRM_ERROR("No FB bound\n"); |
||
2204 | return 0; |
||
2205 | } |
||
2206 | |||
2207 | switch (intel_crtc->plane) { |
||
2208 | case 0: |
||
2209 | case 1: |
||
2210 | break; |
||
2342 | Serge | 2211 | case 2: |
2212 | if (IS_IVYBRIDGE(dev)) |
||
2213 | break; |
||
2214 | /* fall through otherwise */ |
||
2327 | Serge | 2215 | default: |
2216 | DRM_ERROR("no plane for crtc\n"); |
||
2217 | return -EINVAL; |
||
2218 | } |
||
2219 | |||
2220 | mutex_lock(&dev->struct_mutex); |
||
2221 | |||
2336 | Serge | 2222 | ret = intel_pipe_set_base_atomic(crtc, crtc->fb, x, y, |
2223 | LEAVE_ATOMIC_MODE_SET); |
||
2327 | Serge | 2224 | if (ret) { |
2344 | Serge | 2225 | i915_gem_object_unpin(to_intel_framebuffer(crtc->fb)->obj); |
2327 | Serge | 2226 | mutex_unlock(&dev->struct_mutex); |
2227 | DRM_ERROR("failed to update base address\n"); |
||
2336 | Serge | 2228 | LEAVE(); |
2327 | Serge | 2229 | return ret; |
2230 | } |
||
2231 | |||
2336 | Serge | 2232 | mutex_unlock(&dev->struct_mutex); |
2327 | Serge | 2233 | |
2336 | Serge | 2234 | |
2235 | LEAVE(); |
||
2236 | return 0; |
||
2237 | |||
2330 | Serge | 2238 | #if 0 |
2239 | if (!dev->primary->master) |
||
2336 | Serge | 2240 | { |
2241 | LEAVE(); |
||
2330 | Serge | 2242 | return 0; |
2336 | Serge | 2243 | }; |
2327 | Serge | 2244 | |
2330 | Serge | 2245 | master_priv = dev->primary->master->driver_priv; |
2246 | if (!master_priv->sarea_priv) |
||
2336 | Serge | 2247 | { |
2248 | LEAVE(); |
||
2330 | Serge | 2249 | return 0; |
2336 | Serge | 2250 | }; |
2327 | Serge | 2251 | |
2330 | Serge | 2252 | if (intel_crtc->pipe) { |
2253 | master_priv->sarea_priv->pipeB_x = x; |
||
2254 | master_priv->sarea_priv->pipeB_y = y; |
||
2255 | } else { |
||
2256 | master_priv->sarea_priv->pipeA_x = x; |
||
2257 | master_priv->sarea_priv->pipeA_y = y; |
||
2258 | } |
||
2336 | Serge | 2259 | LEAVE(); |
2260 | |||
2261 | return 0; |
||
2330 | Serge | 2262 | #endif |
2336 | Serge | 2263 | |
2327 | Serge | 2264 | } |
2265 | |||
2266 | static void ironlake_set_pll_edp(struct drm_crtc *crtc, int clock) |
||
2267 | { |
||
2268 | struct drm_device *dev = crtc->dev; |
||
2269 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2270 | u32 dpa_ctl; |
||
2271 | |||
2272 | DRM_DEBUG_KMS("eDP PLL enable for clock %d\n", clock); |
||
2273 | dpa_ctl = I915_READ(DP_A); |
||
2274 | dpa_ctl &= ~DP_PLL_FREQ_MASK; |
||
2275 | |||
2276 | if (clock < 200000) { |
||
2277 | u32 temp; |
||
2278 | dpa_ctl |= DP_PLL_FREQ_160MHZ; |
||
2279 | /* workaround for 160Mhz: |
||
2280 | 1) program 0x4600c bits 15:0 = 0x8124 |
||
2281 | 2) program 0x46010 bit 0 = 1 |
||
2282 | 3) program 0x46034 bit 24 = 1 |
||
2283 | 4) program 0x64000 bit 14 = 1 |
||
2284 | */ |
||
2285 | temp = I915_READ(0x4600c); |
||
2286 | temp &= 0xffff0000; |
||
2287 | I915_WRITE(0x4600c, temp | 0x8124); |
||
2288 | |||
2289 | temp = I915_READ(0x46010); |
||
2290 | I915_WRITE(0x46010, temp | 1); |
||
2291 | |||
2292 | temp = I915_READ(0x46034); |
||
2293 | I915_WRITE(0x46034, temp | (1 << 24)); |
||
2294 | } else { |
||
2295 | dpa_ctl |= DP_PLL_FREQ_270MHZ; |
||
2296 | } |
||
2297 | I915_WRITE(DP_A, dpa_ctl); |
||
2298 | |||
2299 | POSTING_READ(DP_A); |
||
2300 | udelay(500); |
||
2301 | } |
||
2302 | |||
2303 | static void intel_fdi_normal_train(struct drm_crtc *crtc) |
||
2304 | { |
||
2305 | struct drm_device *dev = crtc->dev; |
||
2306 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2307 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2308 | int pipe = intel_crtc->pipe; |
||
2309 | u32 reg, temp; |
||
2310 | |||
2311 | /* enable normal train */ |
||
2312 | reg = FDI_TX_CTL(pipe); |
||
2313 | temp = I915_READ(reg); |
||
2314 | if (IS_IVYBRIDGE(dev)) { |
||
2315 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
||
2316 | temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE; |
||
2317 | } else { |
||
2318 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2319 | temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE; |
||
2320 | } |
||
2321 | I915_WRITE(reg, temp); |
||
2322 | |||
2323 | reg = FDI_RX_CTL(pipe); |
||
2324 | temp = I915_READ(reg); |
||
2325 | if (HAS_PCH_CPT(dev)) { |
||
2326 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; |
||
2327 | temp |= FDI_LINK_TRAIN_NORMAL_CPT; |
||
2328 | } else { |
||
2329 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2330 | temp |= FDI_LINK_TRAIN_NONE; |
||
2331 | } |
||
2332 | I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); |
||
2333 | |||
2334 | /* wait one idle pattern time */ |
||
2335 | POSTING_READ(reg); |
||
2336 | udelay(1000); |
||
2337 | |||
2338 | /* IVB wants error correction enabled */ |
||
2339 | if (IS_IVYBRIDGE(dev)) |
||
2340 | I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE | |
||
2341 | FDI_FE_ERRC_ENABLE); |
||
2342 | } |
||
2343 | |||
2344 | static void cpt_phase_pointer_enable(struct drm_device *dev, int pipe) |
||
2345 | { |
||
2346 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2347 | u32 flags = I915_READ(SOUTH_CHICKEN1); |
||
2348 | |||
2349 | flags |= FDI_PHASE_SYNC_OVR(pipe); |
||
2350 | I915_WRITE(SOUTH_CHICKEN1, flags); /* once to unlock... */ |
||
2351 | flags |= FDI_PHASE_SYNC_EN(pipe); |
||
2352 | I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to enable */ |
||
2353 | POSTING_READ(SOUTH_CHICKEN1); |
||
2354 | } |
||
2355 | |||
2356 | /* The FDI link training functions for ILK/Ibexpeak. */ |
||
2357 | static void ironlake_fdi_link_train(struct drm_crtc *crtc) |
||
2358 | { |
||
2359 | struct drm_device *dev = crtc->dev; |
||
2360 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2361 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2362 | int pipe = intel_crtc->pipe; |
||
2363 | int plane = intel_crtc->plane; |
||
2364 | u32 reg, temp, tries; |
||
2365 | |||
2366 | /* FDI needs bits from pipe & plane first */ |
||
2367 | assert_pipe_enabled(dev_priv, pipe); |
||
2368 | assert_plane_enabled(dev_priv, plane); |
||
2369 | |||
2370 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
||
2371 | for train result */ |
||
2372 | reg = FDI_RX_IMR(pipe); |
||
2373 | temp = I915_READ(reg); |
||
2374 | temp &= ~FDI_RX_SYMBOL_LOCK; |
||
2375 | temp &= ~FDI_RX_BIT_LOCK; |
||
2376 | I915_WRITE(reg, temp); |
||
2377 | I915_READ(reg); |
||
2378 | udelay(150); |
||
2379 | |||
2380 | /* enable CPU FDI TX and PCH FDI RX */ |
||
2381 | reg = FDI_TX_CTL(pipe); |
||
2382 | temp = I915_READ(reg); |
||
2383 | temp &= ~(7 << 19); |
||
2384 | temp |= (intel_crtc->fdi_lanes - 1) << 19; |
||
2385 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2386 | temp |= FDI_LINK_TRAIN_PATTERN_1; |
||
2387 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
||
2388 | |||
2389 | reg = FDI_RX_CTL(pipe); |
||
2390 | temp = I915_READ(reg); |
||
2391 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2392 | temp |= FDI_LINK_TRAIN_PATTERN_1; |
||
2393 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
||
2394 | |||
2395 | POSTING_READ(reg); |
||
2396 | udelay(150); |
||
2397 | |||
2398 | /* Ironlake workaround, enable clock pointer after FDI enable*/ |
||
2399 | if (HAS_PCH_IBX(dev)) { |
||
2400 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); |
||
2401 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR | |
||
2402 | FDI_RX_PHASE_SYNC_POINTER_EN); |
||
2403 | } |
||
2404 | |||
2405 | reg = FDI_RX_IIR(pipe); |
||
2406 | for (tries = 0; tries < 5; tries++) { |
||
2407 | temp = I915_READ(reg); |
||
2408 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
||
2409 | |||
2410 | if ((temp & FDI_RX_BIT_LOCK)) { |
||
2411 | DRM_DEBUG_KMS("FDI train 1 done.\n"); |
||
2412 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
||
2413 | break; |
||
2414 | } |
||
2415 | } |
||
2416 | if (tries == 5) |
||
2417 | DRM_ERROR("FDI train 1 fail!\n"); |
||
2418 | |||
2419 | /* Train 2 */ |
||
2420 | reg = FDI_TX_CTL(pipe); |
||
2421 | temp = I915_READ(reg); |
||
2422 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2423 | temp |= FDI_LINK_TRAIN_PATTERN_2; |
||
2424 | I915_WRITE(reg, temp); |
||
2425 | |||
2426 | reg = FDI_RX_CTL(pipe); |
||
2427 | temp = I915_READ(reg); |
||
2428 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2429 | temp |= FDI_LINK_TRAIN_PATTERN_2; |
||
2430 | I915_WRITE(reg, temp); |
||
2431 | |||
2432 | POSTING_READ(reg); |
||
2433 | udelay(150); |
||
2434 | |||
2435 | reg = FDI_RX_IIR(pipe); |
||
2436 | for (tries = 0; tries < 5; tries++) { |
||
2437 | temp = I915_READ(reg); |
||
2438 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
||
2439 | |||
2440 | if (temp & FDI_RX_SYMBOL_LOCK) { |
||
2441 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
||
2442 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
||
2443 | break; |
||
2444 | } |
||
2445 | } |
||
2446 | if (tries == 5) |
||
2447 | DRM_ERROR("FDI train 2 fail!\n"); |
||
2448 | |||
2449 | DRM_DEBUG_KMS("FDI train done\n"); |
||
2450 | |||
2451 | } |
||
2452 | |||
2342 | Serge | 2453 | static const int snb_b_fdi_train_param[] = { |
2327 | Serge | 2454 | FDI_LINK_TRAIN_400MV_0DB_SNB_B, |
2455 | FDI_LINK_TRAIN_400MV_6DB_SNB_B, |
||
2456 | FDI_LINK_TRAIN_600MV_3_5DB_SNB_B, |
||
2457 | FDI_LINK_TRAIN_800MV_0DB_SNB_B, |
||
2458 | }; |
||
2459 | |||
2460 | /* The FDI link training functions for SNB/Cougarpoint. */ |
||
2461 | static void gen6_fdi_link_train(struct drm_crtc *crtc) |
||
2462 | { |
||
2463 | struct drm_device *dev = crtc->dev; |
||
2464 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2465 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2466 | int pipe = intel_crtc->pipe; |
||
2467 | u32 reg, temp, i; |
||
2468 | |||
2469 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
||
2470 | for train result */ |
||
2471 | reg = FDI_RX_IMR(pipe); |
||
2472 | temp = I915_READ(reg); |
||
2473 | temp &= ~FDI_RX_SYMBOL_LOCK; |
||
2474 | temp &= ~FDI_RX_BIT_LOCK; |
||
2475 | I915_WRITE(reg, temp); |
||
2476 | |||
2477 | POSTING_READ(reg); |
||
2478 | udelay(150); |
||
2479 | |||
2480 | /* enable CPU FDI TX and PCH FDI RX */ |
||
2481 | reg = FDI_TX_CTL(pipe); |
||
2482 | temp = I915_READ(reg); |
||
2483 | temp &= ~(7 << 19); |
||
2484 | temp |= (intel_crtc->fdi_lanes - 1) << 19; |
||
2485 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2486 | temp |= FDI_LINK_TRAIN_PATTERN_1; |
||
2487 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
||
2488 | /* SNB-B */ |
||
2489 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; |
||
2490 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
||
2491 | |||
2492 | reg = FDI_RX_CTL(pipe); |
||
2493 | temp = I915_READ(reg); |
||
2494 | if (HAS_PCH_CPT(dev)) { |
||
2495 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; |
||
2496 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; |
||
2497 | } else { |
||
2498 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2499 | temp |= FDI_LINK_TRAIN_PATTERN_1; |
||
2500 | } |
||
2501 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
||
2502 | |||
2503 | POSTING_READ(reg); |
||
2504 | udelay(150); |
||
2505 | |||
2506 | if (HAS_PCH_CPT(dev)) |
||
2507 | cpt_phase_pointer_enable(dev, pipe); |
||
2508 | |||
2342 | Serge | 2509 | for (i = 0; i < 4; i++) { |
2327 | Serge | 2510 | reg = FDI_TX_CTL(pipe); |
2511 | temp = I915_READ(reg); |
||
2512 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
||
2513 | temp |= snb_b_fdi_train_param[i]; |
||
2514 | I915_WRITE(reg, temp); |
||
2515 | |||
2516 | POSTING_READ(reg); |
||
2517 | udelay(500); |
||
2518 | |||
2519 | reg = FDI_RX_IIR(pipe); |
||
2520 | temp = I915_READ(reg); |
||
2521 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
||
2522 | |||
2523 | if (temp & FDI_RX_BIT_LOCK) { |
||
2524 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
||
2525 | DRM_DEBUG_KMS("FDI train 1 done.\n"); |
||
2526 | break; |
||
2527 | } |
||
2528 | } |
||
2529 | if (i == 4) |
||
2530 | DRM_ERROR("FDI train 1 fail!\n"); |
||
2531 | |||
2532 | /* Train 2 */ |
||
2533 | reg = FDI_TX_CTL(pipe); |
||
2534 | temp = I915_READ(reg); |
||
2535 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2536 | temp |= FDI_LINK_TRAIN_PATTERN_2; |
||
2537 | if (IS_GEN6(dev)) { |
||
2538 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
||
2539 | /* SNB-B */ |
||
2540 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; |
||
2541 | } |
||
2542 | I915_WRITE(reg, temp); |
||
2543 | |||
2544 | reg = FDI_RX_CTL(pipe); |
||
2545 | temp = I915_READ(reg); |
||
2546 | if (HAS_PCH_CPT(dev)) { |
||
2547 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; |
||
2548 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; |
||
2549 | } else { |
||
2550 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2551 | temp |= FDI_LINK_TRAIN_PATTERN_2; |
||
2552 | } |
||
2553 | I915_WRITE(reg, temp); |
||
2554 | |||
2555 | POSTING_READ(reg); |
||
2556 | udelay(150); |
||
2557 | |||
2342 | Serge | 2558 | for (i = 0; i < 4; i++) { |
2327 | Serge | 2559 | reg = FDI_TX_CTL(pipe); |
2560 | temp = I915_READ(reg); |
||
2561 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
||
2562 | temp |= snb_b_fdi_train_param[i]; |
||
2563 | I915_WRITE(reg, temp); |
||
2564 | |||
2565 | POSTING_READ(reg); |
||
2566 | udelay(500); |
||
2567 | |||
2568 | reg = FDI_RX_IIR(pipe); |
||
2569 | temp = I915_READ(reg); |
||
2570 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
||
2571 | |||
2572 | if (temp & FDI_RX_SYMBOL_LOCK) { |
||
2573 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
||
2574 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
||
2575 | break; |
||
2576 | } |
||
2577 | } |
||
2578 | if (i == 4) |
||
2579 | DRM_ERROR("FDI train 2 fail!\n"); |
||
2580 | |||
2581 | DRM_DEBUG_KMS("FDI train done.\n"); |
||
2582 | } |
||
2583 | |||
2584 | /* Manual link training for Ivy Bridge A0 parts */ |
||
2585 | static void ivb_manual_fdi_link_train(struct drm_crtc *crtc) |
||
2586 | { |
||
2587 | struct drm_device *dev = crtc->dev; |
||
2588 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2589 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2590 | int pipe = intel_crtc->pipe; |
||
2591 | u32 reg, temp, i; |
||
2592 | |||
2593 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
||
2594 | for train result */ |
||
2595 | reg = FDI_RX_IMR(pipe); |
||
2596 | temp = I915_READ(reg); |
||
2597 | temp &= ~FDI_RX_SYMBOL_LOCK; |
||
2598 | temp &= ~FDI_RX_BIT_LOCK; |
||
2599 | I915_WRITE(reg, temp); |
||
2600 | |||
2601 | POSTING_READ(reg); |
||
2602 | udelay(150); |
||
2603 | |||
2604 | /* enable CPU FDI TX and PCH FDI RX */ |
||
2605 | reg = FDI_TX_CTL(pipe); |
||
2606 | temp = I915_READ(reg); |
||
2607 | temp &= ~(7 << 19); |
||
2608 | temp |= (intel_crtc->fdi_lanes - 1) << 19; |
||
2609 | temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB); |
||
2610 | temp |= FDI_LINK_TRAIN_PATTERN_1_IVB; |
||
2611 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
||
2612 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; |
||
2342 | Serge | 2613 | temp |= FDI_COMPOSITE_SYNC; |
2327 | Serge | 2614 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
2615 | |||
2616 | reg = FDI_RX_CTL(pipe); |
||
2617 | temp = I915_READ(reg); |
||
2618 | temp &= ~FDI_LINK_TRAIN_AUTO; |
||
2619 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; |
||
2620 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; |
||
2342 | Serge | 2621 | temp |= FDI_COMPOSITE_SYNC; |
2327 | Serge | 2622 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
2623 | |||
2624 | POSTING_READ(reg); |
||
2625 | udelay(150); |
||
2626 | |||
2627 | if (HAS_PCH_CPT(dev)) |
||
2628 | cpt_phase_pointer_enable(dev, pipe); |
||
2629 | |||
2342 | Serge | 2630 | for (i = 0; i < 4; i++) { |
2327 | Serge | 2631 | reg = FDI_TX_CTL(pipe); |
2632 | temp = I915_READ(reg); |
||
2633 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
||
2634 | temp |= snb_b_fdi_train_param[i]; |
||
2635 | I915_WRITE(reg, temp); |
||
2636 | |||
2637 | POSTING_READ(reg); |
||
2638 | udelay(500); |
||
2639 | |||
2640 | reg = FDI_RX_IIR(pipe); |
||
2641 | temp = I915_READ(reg); |
||
2642 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
||
2643 | |||
2644 | if (temp & FDI_RX_BIT_LOCK || |
||
2645 | (I915_READ(reg) & FDI_RX_BIT_LOCK)) { |
||
2646 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
||
2647 | DRM_DEBUG_KMS("FDI train 1 done.\n"); |
||
2648 | break; |
||
2649 | } |
||
2650 | } |
||
2651 | if (i == 4) |
||
2652 | DRM_ERROR("FDI train 1 fail!\n"); |
||
2653 | |||
2654 | /* Train 2 */ |
||
2655 | reg = FDI_TX_CTL(pipe); |
||
2656 | temp = I915_READ(reg); |
||
2657 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
||
2658 | temp |= FDI_LINK_TRAIN_PATTERN_2_IVB; |
||
2659 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
||
2660 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; |
||
2661 | I915_WRITE(reg, temp); |
||
2662 | |||
2663 | reg = FDI_RX_CTL(pipe); |
||
2664 | temp = I915_READ(reg); |
||
2665 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; |
||
2666 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; |
||
2667 | I915_WRITE(reg, temp); |
||
2668 | |||
2669 | POSTING_READ(reg); |
||
2670 | udelay(150); |
||
2671 | |||
2342 | Serge | 2672 | for (i = 0; i < 4; i++) { |
2327 | Serge | 2673 | reg = FDI_TX_CTL(pipe); |
2674 | temp = I915_READ(reg); |
||
2675 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
||
2676 | temp |= snb_b_fdi_train_param[i]; |
||
2677 | I915_WRITE(reg, temp); |
||
2678 | |||
2679 | POSTING_READ(reg); |
||
2680 | udelay(500); |
||
2681 | |||
2682 | reg = FDI_RX_IIR(pipe); |
||
2683 | temp = I915_READ(reg); |
||
2684 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
||
2685 | |||
2686 | if (temp & FDI_RX_SYMBOL_LOCK) { |
||
2687 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
||
2688 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
||
2689 | break; |
||
2690 | } |
||
2691 | } |
||
2692 | if (i == 4) |
||
2693 | DRM_ERROR("FDI train 2 fail!\n"); |
||
2694 | |||
2695 | DRM_DEBUG_KMS("FDI train done.\n"); |
||
2696 | } |
||
2697 | |||
2698 | static void ironlake_fdi_pll_enable(struct drm_crtc *crtc) |
||
2699 | { |
||
2700 | struct drm_device *dev = crtc->dev; |
||
2701 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2702 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2703 | int pipe = intel_crtc->pipe; |
||
2704 | u32 reg, temp; |
||
2705 | |||
2706 | /* Write the TU size bits so error detection works */ |
||
2707 | I915_WRITE(FDI_RX_TUSIZE1(pipe), |
||
2708 | I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK); |
||
2709 | |||
2710 | /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ |
||
2711 | reg = FDI_RX_CTL(pipe); |
||
2712 | temp = I915_READ(reg); |
||
2713 | temp &= ~((0x7 << 19) | (0x7 << 16)); |
||
2714 | temp |= (intel_crtc->fdi_lanes - 1) << 19; |
||
2715 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; |
||
2716 | I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE); |
||
2717 | |||
2718 | POSTING_READ(reg); |
||
2719 | udelay(200); |
||
2720 | |||
2721 | /* Switch from Rawclk to PCDclk */ |
||
2722 | temp = I915_READ(reg); |
||
2723 | I915_WRITE(reg, temp | FDI_PCDCLK); |
||
2724 | |||
2725 | POSTING_READ(reg); |
||
2726 | udelay(200); |
||
2727 | |||
2728 | /* Enable CPU FDI TX PLL, always on for Ironlake */ |
||
2729 | reg = FDI_TX_CTL(pipe); |
||
2730 | temp = I915_READ(reg); |
||
2731 | if ((temp & FDI_TX_PLL_ENABLE) == 0) { |
||
2732 | I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE); |
||
2733 | |||
2734 | POSTING_READ(reg); |
||
2735 | udelay(100); |
||
2736 | } |
||
2737 | } |
||
2738 | |||
2739 | static void cpt_phase_pointer_disable(struct drm_device *dev, int pipe) |
||
2740 | { |
||
2741 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2742 | u32 flags = I915_READ(SOUTH_CHICKEN1); |
||
2743 | |||
2744 | flags &= ~(FDI_PHASE_SYNC_EN(pipe)); |
||
2745 | I915_WRITE(SOUTH_CHICKEN1, flags); /* once to disable... */ |
||
2746 | flags &= ~(FDI_PHASE_SYNC_OVR(pipe)); |
||
2747 | I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to lock */ |
||
2748 | POSTING_READ(SOUTH_CHICKEN1); |
||
2749 | } |
||
2750 | static void ironlake_fdi_disable(struct drm_crtc *crtc) |
||
2751 | { |
||
2752 | struct drm_device *dev = crtc->dev; |
||
2753 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2754 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2755 | int pipe = intel_crtc->pipe; |
||
2756 | u32 reg, temp; |
||
2757 | |||
2758 | /* disable CPU FDI tx and PCH FDI rx */ |
||
2759 | reg = FDI_TX_CTL(pipe); |
||
2760 | temp = I915_READ(reg); |
||
2761 | I915_WRITE(reg, temp & ~FDI_TX_ENABLE); |
||
2762 | POSTING_READ(reg); |
||
2763 | |||
2764 | reg = FDI_RX_CTL(pipe); |
||
2765 | temp = I915_READ(reg); |
||
2766 | temp &= ~(0x7 << 16); |
||
2767 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; |
||
2768 | I915_WRITE(reg, temp & ~FDI_RX_ENABLE); |
||
2769 | |||
2770 | POSTING_READ(reg); |
||
2771 | udelay(100); |
||
2772 | |||
2773 | /* Ironlake workaround, disable clock pointer after downing FDI */ |
||
2774 | if (HAS_PCH_IBX(dev)) { |
||
2775 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); |
||
2776 | I915_WRITE(FDI_RX_CHICKEN(pipe), |
||
2777 | I915_READ(FDI_RX_CHICKEN(pipe) & |
||
2778 | ~FDI_RX_PHASE_SYNC_POINTER_EN)); |
||
2779 | } else if (HAS_PCH_CPT(dev)) { |
||
2780 | cpt_phase_pointer_disable(dev, pipe); |
||
2781 | } |
||
2782 | |||
2783 | /* still set train pattern 1 */ |
||
2784 | reg = FDI_TX_CTL(pipe); |
||
2785 | temp = I915_READ(reg); |
||
2786 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2787 | temp |= FDI_LINK_TRAIN_PATTERN_1; |
||
2788 | I915_WRITE(reg, temp); |
||
2789 | |||
2790 | reg = FDI_RX_CTL(pipe); |
||
2791 | temp = I915_READ(reg); |
||
2792 | if (HAS_PCH_CPT(dev)) { |
||
2793 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; |
||
2794 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; |
||
2795 | } else { |
||
2796 | temp &= ~FDI_LINK_TRAIN_NONE; |
||
2797 | temp |= FDI_LINK_TRAIN_PATTERN_1; |
||
2798 | } |
||
2799 | /* BPC in FDI rx is consistent with that in PIPECONF */ |
||
2800 | temp &= ~(0x07 << 16); |
||
2801 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; |
||
2802 | I915_WRITE(reg, temp); |
||
2803 | |||
2804 | POSTING_READ(reg); |
||
2805 | udelay(100); |
||
2806 | } |
||
2807 | |||
2808 | /* |
||
2809 | * When we disable a pipe, we need to clear any pending scanline wait events |
||
2810 | * to avoid hanging the ring, which we assume we are waiting on. |
||
2811 | */ |
||
2812 | static void intel_clear_scanline_wait(struct drm_device *dev) |
||
2813 | { |
||
2814 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2815 | struct intel_ring_buffer *ring; |
||
2816 | u32 tmp; |
||
2817 | |||
2818 | if (IS_GEN2(dev)) |
||
2819 | /* Can't break the hang on i8xx */ |
||
2820 | return; |
||
2821 | |||
2822 | ring = LP_RING(dev_priv); |
||
2823 | tmp = I915_READ_CTL(ring); |
||
2824 | if (tmp & RING_WAIT) |
||
2825 | I915_WRITE_CTL(ring, tmp); |
||
2826 | } |
||
2827 | |||
2828 | static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc) |
||
2829 | { |
||
2830 | struct drm_i915_gem_object *obj; |
||
2831 | struct drm_i915_private *dev_priv; |
||
2832 | |||
2833 | if (crtc->fb == NULL) |
||
2834 | return; |
||
2835 | |||
2836 | obj = to_intel_framebuffer(crtc->fb)->obj; |
||
2837 | dev_priv = crtc->dev->dev_private; |
||
2838 | // wait_event(dev_priv->pending_flip_queue, |
||
2839 | // atomic_read(&obj->pending_flip) == 0); |
||
2840 | } |
||
2841 | |||
2842 | static bool intel_crtc_driving_pch(struct drm_crtc *crtc) |
||
2843 | { |
||
2844 | struct drm_device *dev = crtc->dev; |
||
2845 | struct drm_mode_config *mode_config = &dev->mode_config; |
||
2846 | struct intel_encoder *encoder; |
||
2847 | |||
2848 | /* |
||
2849 | * If there's a non-PCH eDP on this crtc, it must be DP_A, and that |
||
2850 | * must be driven by its own crtc; no sharing is possible. |
||
2851 | */ |
||
2852 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) { |
||
2853 | if (encoder->base.crtc != crtc) |
||
2854 | continue; |
||
2855 | |||
2856 | switch (encoder->type) { |
||
2857 | case INTEL_OUTPUT_EDP: |
||
2858 | if (!intel_encoder_is_pch_edp(&encoder->base)) |
||
2859 | return false; |
||
2860 | continue; |
||
2861 | } |
||
2862 | } |
||
2863 | |||
2864 | return true; |
||
2865 | } |
||
2866 | |||
2867 | /* |
||
2868 | * Enable PCH resources required for PCH ports: |
||
2869 | * - PCH PLLs |
||
2870 | * - FDI training & RX/TX |
||
2871 | * - update transcoder timings |
||
2872 | * - DP transcoding bits |
||
2873 | * - transcoder |
||
2874 | */ |
||
2875 | static void ironlake_pch_enable(struct drm_crtc *crtc) |
||
2876 | { |
||
2877 | struct drm_device *dev = crtc->dev; |
||
2878 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2879 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2880 | int pipe = intel_crtc->pipe; |
||
2342 | Serge | 2881 | u32 reg, temp, transc_sel; |
2327 | Serge | 2882 | |
2883 | /* For PCH output, training FDI link */ |
||
2884 | dev_priv->display.fdi_link_train(crtc); |
||
2885 | |||
2886 | intel_enable_pch_pll(dev_priv, pipe); |
||
2887 | |||
2888 | if (HAS_PCH_CPT(dev)) { |
||
2342 | Serge | 2889 | transc_sel = intel_crtc->use_pll_a ? TRANSC_DPLLA_SEL : |
2890 | TRANSC_DPLLB_SEL; |
||
2891 | |||
2327 | Serge | 2892 | /* Be sure PCH DPLL SEL is set */ |
2893 | temp = I915_READ(PCH_DPLL_SEL); |
||
2342 | Serge | 2894 | if (pipe == 0) { |
2895 | temp &= ~(TRANSA_DPLLB_SEL); |
||
2327 | Serge | 2896 | temp |= (TRANSA_DPLL_ENABLE | TRANSA_DPLLA_SEL); |
2342 | Serge | 2897 | } else if (pipe == 1) { |
2898 | temp &= ~(TRANSB_DPLLB_SEL); |
||
2327 | Serge | 2899 | temp |= (TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); |
2342 | Serge | 2900 | } else if (pipe == 2) { |
2901 | temp &= ~(TRANSC_DPLLB_SEL); |
||
2902 | temp |= (TRANSC_DPLL_ENABLE | transc_sel); |
||
2903 | } |
||
2327 | Serge | 2904 | I915_WRITE(PCH_DPLL_SEL, temp); |
2905 | } |
||
2906 | |||
2907 | /* set transcoder timing, panel must allow it */ |
||
2908 | assert_panel_unlocked(dev_priv, pipe); |
||
2909 | I915_WRITE(TRANS_HTOTAL(pipe), I915_READ(HTOTAL(pipe))); |
||
2910 | I915_WRITE(TRANS_HBLANK(pipe), I915_READ(HBLANK(pipe))); |
||
2911 | I915_WRITE(TRANS_HSYNC(pipe), I915_READ(HSYNC(pipe))); |
||
2912 | |||
2913 | I915_WRITE(TRANS_VTOTAL(pipe), I915_READ(VTOTAL(pipe))); |
||
2914 | I915_WRITE(TRANS_VBLANK(pipe), I915_READ(VBLANK(pipe))); |
||
2915 | I915_WRITE(TRANS_VSYNC(pipe), I915_READ(VSYNC(pipe))); |
||
2916 | |||
2917 | intel_fdi_normal_train(crtc); |
||
2918 | |||
2919 | /* For PCH DP, enable TRANS_DP_CTL */ |
||
2920 | if (HAS_PCH_CPT(dev) && |
||
2342 | Serge | 2921 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || |
2922 | intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) { |
||
2327 | Serge | 2923 | u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) >> 5; |
2924 | reg = TRANS_DP_CTL(pipe); |
||
2925 | temp = I915_READ(reg); |
||
2926 | temp &= ~(TRANS_DP_PORT_SEL_MASK | |
||
2927 | TRANS_DP_SYNC_MASK | |
||
2928 | TRANS_DP_BPC_MASK); |
||
2929 | temp |= (TRANS_DP_OUTPUT_ENABLE | |
||
2930 | TRANS_DP_ENH_FRAMING); |
||
2931 | temp |= bpc << 9; /* same format but at 11:9 */ |
||
2932 | |||
2933 | if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) |
||
2934 | temp |= TRANS_DP_HSYNC_ACTIVE_HIGH; |
||
2935 | if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC) |
||
2936 | temp |= TRANS_DP_VSYNC_ACTIVE_HIGH; |
||
2937 | |||
2938 | switch (intel_trans_dp_port_sel(crtc)) { |
||
2939 | case PCH_DP_B: |
||
2940 | temp |= TRANS_DP_PORT_SEL_B; |
||
2941 | break; |
||
2942 | case PCH_DP_C: |
||
2943 | temp |= TRANS_DP_PORT_SEL_C; |
||
2944 | break; |
||
2945 | case PCH_DP_D: |
||
2946 | temp |= TRANS_DP_PORT_SEL_D; |
||
2947 | break; |
||
2948 | default: |
||
2949 | DRM_DEBUG_KMS("Wrong PCH DP port return. Guess port B\n"); |
||
2950 | temp |= TRANS_DP_PORT_SEL_B; |
||
2951 | break; |
||
2952 | } |
||
2953 | |||
2954 | I915_WRITE(reg, temp); |
||
2955 | } |
||
2956 | |||
2957 | intel_enable_transcoder(dev_priv, pipe); |
||
2958 | } |
||
2959 | |||
2342 | Serge | 2960 | void intel_cpt_verify_modeset(struct drm_device *dev, int pipe) |
2961 | { |
||
2962 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2963 | int dslreg = PIPEDSL(pipe), tc2reg = TRANS_CHICKEN2(pipe); |
||
2964 | u32 temp; |
||
2965 | |||
2966 | temp = I915_READ(dslreg); |
||
2967 | udelay(500); |
||
2968 | if (wait_for(I915_READ(dslreg) != temp, 5)) { |
||
2969 | /* Without this, mode sets may fail silently on FDI */ |
||
2970 | I915_WRITE(tc2reg, TRANS_AUTOTRAIN_GEN_STALL_DIS); |
||
2971 | udelay(250); |
||
2972 | I915_WRITE(tc2reg, 0); |
||
2973 | if (wait_for(I915_READ(dslreg) != temp, 5)) |
||
2974 | DRM_ERROR("mode set failed: pipe %d stuck\n", pipe); |
||
2975 | } |
||
2976 | } |
||
2977 | |||
2327 | Serge | 2978 | static void ironlake_crtc_enable(struct drm_crtc *crtc) |
2979 | { |
||
2980 | struct drm_device *dev = crtc->dev; |
||
2981 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2982 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2983 | int pipe = intel_crtc->pipe; |
||
2984 | int plane = intel_crtc->plane; |
||
2985 | u32 temp; |
||
2986 | bool is_pch_port; |
||
2987 | |||
2988 | if (intel_crtc->active) |
||
2989 | return; |
||
2990 | |||
2991 | intel_crtc->active = true; |
||
2992 | intel_update_watermarks(dev); |
||
2993 | |||
2994 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
||
2995 | temp = I915_READ(PCH_LVDS); |
||
2996 | if ((temp & LVDS_PORT_EN) == 0) |
||
2997 | I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN); |
||
2998 | } |
||
2999 | |||
3000 | is_pch_port = intel_crtc_driving_pch(crtc); |
||
3001 | |||
3002 | if (is_pch_port) |
||
3003 | ironlake_fdi_pll_enable(crtc); |
||
3004 | else |
||
3005 | ironlake_fdi_disable(crtc); |
||
3006 | |||
3007 | /* Enable panel fitting for LVDS */ |
||
3008 | if (dev_priv->pch_pf_size && |
||
3009 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) || HAS_eDP)) { |
||
3010 | /* Force use of hard-coded filter coefficients |
||
3011 | * as some pre-programmed values are broken, |
||
3012 | * e.g. x201. |
||
3013 | */ |
||
3014 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3); |
||
3015 | I915_WRITE(PF_WIN_POS(pipe), dev_priv->pch_pf_pos); |
||
3016 | I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size); |
||
3017 | } |
||
3018 | |||
3019 | /* |
||
3020 | * On ILK+ LUT must be loaded before the pipe is running but with |
||
3021 | * clocks enabled |
||
3022 | */ |
||
3023 | intel_crtc_load_lut(crtc); |
||
3024 | |||
3025 | intel_enable_pipe(dev_priv, pipe, is_pch_port); |
||
3026 | intel_enable_plane(dev_priv, plane, pipe); |
||
3027 | |||
3028 | if (is_pch_port) |
||
3029 | ironlake_pch_enable(crtc); |
||
3030 | |||
3031 | mutex_lock(&dev->struct_mutex); |
||
3032 | intel_update_fbc(dev); |
||
3033 | mutex_unlock(&dev->struct_mutex); |
||
3034 | |||
3035 | // intel_crtc_update_cursor(crtc, true); |
||
3036 | } |
||
3037 | |||
3038 | static void ironlake_crtc_disable(struct drm_crtc *crtc) |
||
3039 | { |
||
3040 | struct drm_device *dev = crtc->dev; |
||
3041 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3042 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
3043 | int pipe = intel_crtc->pipe; |
||
3044 | int plane = intel_crtc->plane; |
||
3045 | u32 reg, temp; |
||
3046 | |||
3047 | if (!intel_crtc->active) |
||
3048 | return; |
||
3049 | |||
2336 | Serge | 3050 | ENTER(); |
3051 | |||
2327 | Serge | 3052 | intel_crtc_wait_for_pending_flips(crtc); |
3053 | // drm_vblank_off(dev, pipe); |
||
3054 | // intel_crtc_update_cursor(crtc, false); |
||
3055 | |||
3056 | intel_disable_plane(dev_priv, plane, pipe); |
||
3057 | |||
3058 | if (dev_priv->cfb_plane == plane) |
||
3059 | intel_disable_fbc(dev); |
||
3060 | |||
3061 | intel_disable_pipe(dev_priv, pipe); |
||
3062 | |||
3063 | /* Disable PF */ |
||
3064 | I915_WRITE(PF_CTL(pipe), 0); |
||
3065 | I915_WRITE(PF_WIN_SZ(pipe), 0); |
||
3066 | |||
3067 | ironlake_fdi_disable(crtc); |
||
3068 | |||
3069 | /* This is a horrible layering violation; we should be doing this in |
||
3070 | * the connector/encoder ->prepare instead, but we don't always have |
||
3071 | * enough information there about the config to know whether it will |
||
3072 | * actually be necessary or just cause undesired flicker. |
||
3073 | */ |
||
3074 | intel_disable_pch_ports(dev_priv, pipe); |
||
3075 | |||
3076 | intel_disable_transcoder(dev_priv, pipe); |
||
3077 | |||
3078 | if (HAS_PCH_CPT(dev)) { |
||
3079 | /* disable TRANS_DP_CTL */ |
||
3080 | reg = TRANS_DP_CTL(pipe); |
||
3081 | temp = I915_READ(reg); |
||
3082 | temp &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK); |
||
3083 | temp |= TRANS_DP_PORT_SEL_NONE; |
||
3084 | I915_WRITE(reg, temp); |
||
3085 | |||
3086 | /* disable DPLL_SEL */ |
||
3087 | temp = I915_READ(PCH_DPLL_SEL); |
||
3088 | switch (pipe) { |
||
3089 | case 0: |
||
2342 | Serge | 3090 | temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL); |
2327 | Serge | 3091 | break; |
3092 | case 1: |
||
3093 | temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); |
||
3094 | break; |
||
3095 | case 2: |
||
2342 | Serge | 3096 | /* C shares PLL A or B */ |
2327 | Serge | 3097 | temp &= ~(TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL); |
3098 | break; |
||
3099 | default: |
||
3100 | BUG(); /* wtf */ |
||
3101 | } |
||
3102 | I915_WRITE(PCH_DPLL_SEL, temp); |
||
3103 | } |
||
3104 | |||
3105 | /* disable PCH DPLL */ |
||
2342 | Serge | 3106 | if (!intel_crtc->no_pll) |
3107 | intel_disable_pch_pll(dev_priv, pipe); |
||
2327 | Serge | 3108 | |
3109 | /* Switch from PCDclk to Rawclk */ |
||
3110 | reg = FDI_RX_CTL(pipe); |
||
3111 | temp = I915_READ(reg); |
||
3112 | I915_WRITE(reg, temp & ~FDI_PCDCLK); |
||
3113 | |||
3114 | /* Disable CPU FDI TX PLL */ |
||
3115 | reg = FDI_TX_CTL(pipe); |
||
3116 | temp = I915_READ(reg); |
||
3117 | I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE); |
||
3118 | |||
3119 | POSTING_READ(reg); |
||
3120 | udelay(100); |
||
3121 | |||
3122 | reg = FDI_RX_CTL(pipe); |
||
3123 | temp = I915_READ(reg); |
||
3124 | I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE); |
||
3125 | |||
3126 | /* Wait for the clocks to turn off. */ |
||
3127 | POSTING_READ(reg); |
||
3128 | udelay(100); |
||
3129 | |||
3130 | intel_crtc->active = false; |
||
3131 | intel_update_watermarks(dev); |
||
3132 | |||
3133 | mutex_lock(&dev->struct_mutex); |
||
3134 | intel_update_fbc(dev); |
||
3135 | intel_clear_scanline_wait(dev); |
||
3136 | mutex_unlock(&dev->struct_mutex); |
||
2336 | Serge | 3137 | |
3138 | LEAVE(); |
||
3139 | |||
2327 | Serge | 3140 | } |
3141 | |||
3142 | static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) |
||
3143 | { |
||
3144 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
3145 | int pipe = intel_crtc->pipe; |
||
3146 | int plane = intel_crtc->plane; |
||
3147 | |||
3148 | /* XXX: When our outputs are all unaware of DPMS modes other than off |
||
3149 | * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC. |
||
3150 | */ |
||
3151 | switch (mode) { |
||
3152 | case DRM_MODE_DPMS_ON: |
||
3153 | case DRM_MODE_DPMS_STANDBY: |
||
3154 | case DRM_MODE_DPMS_SUSPEND: |
||
3155 | DRM_DEBUG_KMS("crtc %d/%d dpms on\n", pipe, plane); |
||
3156 | ironlake_crtc_enable(crtc); |
||
3157 | break; |
||
3158 | |||
3159 | case DRM_MODE_DPMS_OFF: |
||
3160 | DRM_DEBUG_KMS("crtc %d/%d dpms off\n", pipe, plane); |
||
3161 | ironlake_crtc_disable(crtc); |
||
3162 | break; |
||
3163 | } |
||
3164 | } |
||
3165 | |||
3166 | static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable) |
||
3167 | { |
||
3168 | if (!enable && intel_crtc->overlay) { |
||
3169 | struct drm_device *dev = intel_crtc->base.dev; |
||
3170 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3171 | |||
3172 | mutex_lock(&dev->struct_mutex); |
||
3173 | dev_priv->mm.interruptible = false; |
||
3174 | // (void) intel_overlay_switch_off(intel_crtc->overlay); |
||
3175 | dev_priv->mm.interruptible = true; |
||
3176 | mutex_unlock(&dev->struct_mutex); |
||
3177 | } |
||
3178 | |||
3179 | /* Let userspace switch the overlay on again. In most cases userspace |
||
3180 | * has to recompute where to put it anyway. |
||
3181 | */ |
||
3182 | } |
||
3183 | |||
3184 | static void i9xx_crtc_enable(struct drm_crtc *crtc) |
||
3185 | { |
||
3186 | struct drm_device *dev = crtc->dev; |
||
3187 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3188 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
3189 | int pipe = intel_crtc->pipe; |
||
3190 | int plane = intel_crtc->plane; |
||
3191 | |||
3192 | if (intel_crtc->active) |
||
3193 | return; |
||
3194 | |||
3195 | intel_crtc->active = true; |
||
3196 | intel_update_watermarks(dev); |
||
3197 | |||
3198 | intel_enable_pll(dev_priv, pipe); |
||
3199 | intel_enable_pipe(dev_priv, pipe, false); |
||
3200 | intel_enable_plane(dev_priv, plane, pipe); |
||
3201 | |||
3202 | intel_crtc_load_lut(crtc); |
||
3203 | intel_update_fbc(dev); |
||
3204 | |||
3205 | /* Give the overlay scaler a chance to enable if it's on this pipe */ |
||
3206 | intel_crtc_dpms_overlay(intel_crtc, true); |
||
3207 | // intel_crtc_update_cursor(crtc, true); |
||
3208 | } |
||
3209 | |||
3210 | static void i9xx_crtc_disable(struct drm_crtc *crtc) |
||
3211 | { |
||
3212 | struct drm_device *dev = crtc->dev; |
||
3213 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3214 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
3215 | int pipe = intel_crtc->pipe; |
||
3216 | int plane = intel_crtc->plane; |
||
3217 | |||
3218 | if (!intel_crtc->active) |
||
3219 | return; |
||
3220 | |||
3221 | /* Give the overlay scaler a chance to disable if it's on this pipe */ |
||
3222 | intel_crtc_wait_for_pending_flips(crtc); |
||
3223 | // drm_vblank_off(dev, pipe); |
||
3224 | intel_crtc_dpms_overlay(intel_crtc, false); |
||
3225 | // intel_crtc_update_cursor(crtc, false); |
||
3226 | |||
3227 | if (dev_priv->cfb_plane == plane) |
||
3228 | intel_disable_fbc(dev); |
||
3229 | |||
3230 | intel_disable_plane(dev_priv, plane, pipe); |
||
3231 | intel_disable_pipe(dev_priv, pipe); |
||
3232 | intel_disable_pll(dev_priv, pipe); |
||
3233 | |||
3234 | intel_crtc->active = false; |
||
3235 | intel_update_fbc(dev); |
||
3236 | intel_update_watermarks(dev); |
||
3237 | intel_clear_scanline_wait(dev); |
||
3238 | } |
||
3239 | |||
3240 | static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode) |
||
3241 | { |
||
3242 | /* XXX: When our outputs are all unaware of DPMS modes other than off |
||
3243 | * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC. |
||
3244 | */ |
||
3245 | switch (mode) { |
||
3246 | case DRM_MODE_DPMS_ON: |
||
3247 | case DRM_MODE_DPMS_STANDBY: |
||
3248 | case DRM_MODE_DPMS_SUSPEND: |
||
3249 | i9xx_crtc_enable(crtc); |
||
3250 | break; |
||
3251 | case DRM_MODE_DPMS_OFF: |
||
3252 | i9xx_crtc_disable(crtc); |
||
3253 | break; |
||
3254 | } |
||
3255 | } |
||
3256 | |||
2330 | Serge | 3257 | /** |
3258 | * Sets the power management mode of the pipe and plane. |
||
3259 | */ |
||
3260 | static void intel_crtc_dpms(struct drm_crtc *crtc, int mode) |
||
3261 | { |
||
3262 | struct drm_device *dev = crtc->dev; |
||
3263 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3264 | struct drm_i915_master_private *master_priv; |
||
3265 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
3266 | int pipe = intel_crtc->pipe; |
||
3267 | bool enabled; |
||
2327 | Serge | 3268 | |
2330 | Serge | 3269 | if (intel_crtc->dpms_mode == mode) |
3270 | return; |
||
2327 | Serge | 3271 | |
2330 | Serge | 3272 | intel_crtc->dpms_mode = mode; |
2327 | Serge | 3273 | |
2330 | Serge | 3274 | dev_priv->display.dpms(crtc, mode); |
2327 | Serge | 3275 | |
2340 | Serge | 3276 | #if 0 |
2330 | Serge | 3277 | if (!dev->primary->master) |
3278 | return; |
||
2327 | Serge | 3279 | |
2330 | Serge | 3280 | master_priv = dev->primary->master->driver_priv; |
3281 | if (!master_priv->sarea_priv) |
||
3282 | return; |
||
2327 | Serge | 3283 | |
2330 | Serge | 3284 | enabled = crtc->enabled && mode != DRM_MODE_DPMS_OFF; |
2327 | Serge | 3285 | |
2330 | Serge | 3286 | switch (pipe) { |
3287 | case 0: |
||
3288 | master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0; |
||
3289 | master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0; |
||
3290 | break; |
||
3291 | case 1: |
||
3292 | master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0; |
||
3293 | master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0; |
||
3294 | break; |
||
3295 | default: |
||
3296 | DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe)); |
||
3297 | break; |
||
3298 | } |
||
2340 | Serge | 3299 | #endif |
3300 | |||
2330 | Serge | 3301 | } |
2327 | Serge | 3302 | |
2330 | Serge | 3303 | static void intel_crtc_disable(struct drm_crtc *crtc) |
3304 | { |
||
3305 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; |
||
3306 | struct drm_device *dev = crtc->dev; |
||
2327 | Serge | 3307 | |
2330 | Serge | 3308 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF); |
2327 | Serge | 3309 | |
2330 | Serge | 3310 | if (crtc->fb) { |
3311 | mutex_lock(&dev->struct_mutex); |
||
2344 | Serge | 3312 | i915_gem_object_unpin(to_intel_framebuffer(crtc->fb)->obj); |
2330 | Serge | 3313 | mutex_unlock(&dev->struct_mutex); |
3314 | } |
||
3315 | } |
||
2327 | Serge | 3316 | |
2330 | Serge | 3317 | /* Prepare for a mode set. |
3318 | * |
||
3319 | * Note we could be a lot smarter here. We need to figure out which outputs |
||
3320 | * will be enabled, which disabled (in short, how the config will changes) |
||
3321 | * and perform the minimum necessary steps to accomplish that, e.g. updating |
||
3322 | * watermarks, FBC configuration, making sure PLLs are programmed correctly, |
||
3323 | * panel fitting is in the proper state, etc. |
||
3324 | */ |
||
3325 | static void i9xx_crtc_prepare(struct drm_crtc *crtc) |
||
3326 | { |
||
3327 | i9xx_crtc_disable(crtc); |
||
3328 | } |
||
2327 | Serge | 3329 | |
2330 | Serge | 3330 | static void i9xx_crtc_commit(struct drm_crtc *crtc) |
3331 | { |
||
3332 | i9xx_crtc_enable(crtc); |
||
3333 | } |
||
2327 | Serge | 3334 | |
2330 | Serge | 3335 | static void ironlake_crtc_prepare(struct drm_crtc *crtc) |
3336 | { |
||
3337 | ironlake_crtc_disable(crtc); |
||
3338 | } |
||
2327 | Serge | 3339 | |
2330 | Serge | 3340 | static void ironlake_crtc_commit(struct drm_crtc *crtc) |
3341 | { |
||
3342 | ironlake_crtc_enable(crtc); |
||
3343 | } |
||
2327 | Serge | 3344 | |
2342 | Serge | 3345 | void intel_encoder_prepare(struct drm_encoder *encoder) |
2330 | Serge | 3346 | { |
3347 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; |
||
3348 | /* lvds has its own version of prepare see intel_lvds_prepare */ |
||
3349 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_OFF); |
||
3350 | } |
||
2327 | Serge | 3351 | |
2342 | Serge | 3352 | void intel_encoder_commit(struct drm_encoder *encoder) |
2330 | Serge | 3353 | { |
3354 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; |
||
2342 | Serge | 3355 | struct drm_device *dev = encoder->dev; |
3356 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); |
||
3357 | struct intel_crtc *intel_crtc = to_intel_crtc(intel_encoder->base.crtc); |
||
3358 | |||
2330 | Serge | 3359 | /* lvds has its own version of commit see intel_lvds_commit */ |
3360 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); |
||
2342 | Serge | 3361 | |
3362 | if (HAS_PCH_CPT(dev)) |
||
3363 | intel_cpt_verify_modeset(dev, intel_crtc->pipe); |
||
2330 | Serge | 3364 | } |
2327 | Serge | 3365 | |
2330 | Serge | 3366 | void intel_encoder_destroy(struct drm_encoder *encoder) |
3367 | { |
||
3368 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); |
||
3369 | |||
3370 | drm_encoder_cleanup(encoder); |
||
3371 | kfree(intel_encoder); |
||
3372 | } |
||
3373 | |||
3374 | static bool intel_crtc_mode_fixup(struct drm_crtc *crtc, |
||
3375 | struct drm_display_mode *mode, |
||
3376 | struct drm_display_mode *adjusted_mode) |
||
3377 | { |
||
3378 | struct drm_device *dev = crtc->dev; |
||
3379 | |||
3380 | if (HAS_PCH_SPLIT(dev)) { |
||
3381 | /* FDI link clock is fixed at 2.7G */ |
||
3382 | if (mode->clock * 3 > IRONLAKE_FDI_FREQ * 4) |
||
3383 | return false; |
||
3384 | } |
||
3385 | |||
3386 | /* XXX some encoders set the crtcinfo, others don't. |
||
3387 | * Obviously we need some form of conflict resolution here... |
||
3388 | */ |
||
3389 | if (adjusted_mode->crtc_htotal == 0) |
||
3390 | drm_mode_set_crtcinfo(adjusted_mode, 0); |
||
3391 | |||
3392 | return true; |
||
3393 | } |
||
3394 | |||
2327 | Serge | 3395 | static int i945_get_display_clock_speed(struct drm_device *dev) |
3396 | { |
||
3397 | return 400000; |
||
3398 | } |
||
3399 | |||
3400 | static int i915_get_display_clock_speed(struct drm_device *dev) |
||
3401 | { |
||
3402 | return 333000; |
||
3403 | } |
||
3404 | |||
3405 | static int i9xx_misc_get_display_clock_speed(struct drm_device *dev) |
||
3406 | { |
||
3407 | return 200000; |
||
3408 | } |
||
3409 | |||
3410 | static int i915gm_get_display_clock_speed(struct drm_device *dev) |
||
3411 | { |
||
3412 | u16 gcfgc = 0; |
||
3413 | |||
3414 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); |
||
3415 | |||
3416 | if (gcfgc & GC_LOW_FREQUENCY_ENABLE) |
||
3417 | return 133000; |
||
3418 | else { |
||
3419 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { |
||
3420 | case GC_DISPLAY_CLOCK_333_MHZ: |
||
3421 | return 333000; |
||
3422 | default: |
||
3423 | case GC_DISPLAY_CLOCK_190_200_MHZ: |
||
3424 | return 190000; |
||
3425 | } |
||
3426 | } |
||
3427 | } |
||
3428 | |||
3429 | static int i865_get_display_clock_speed(struct drm_device *dev) |
||
3430 | { |
||
3431 | return 266000; |
||
3432 | } |
||
3433 | |||
3434 | static int i855_get_display_clock_speed(struct drm_device *dev) |
||
3435 | { |
||
3436 | u16 hpllcc = 0; |
||
3437 | /* Assume that the hardware is in the high speed state. This |
||
3438 | * should be the default. |
||
3439 | */ |
||
3440 | switch (hpllcc & GC_CLOCK_CONTROL_MASK) { |
||
3441 | case GC_CLOCK_133_200: |
||
3442 | case GC_CLOCK_100_200: |
||
3443 | return 200000; |
||
3444 | case GC_CLOCK_166_250: |
||
3445 | return 250000; |
||
3446 | case GC_CLOCK_100_133: |
||
3447 | return 133000; |
||
3448 | } |
||
3449 | |||
3450 | /* Shouldn't happen */ |
||
3451 | return 0; |
||
3452 | } |
||
3453 | |||
3454 | static int i830_get_display_clock_speed(struct drm_device *dev) |
||
3455 | { |
||
3456 | return 133000; |
||
3457 | } |
||
3458 | |||
3459 | struct fdi_m_n { |
||
3460 | u32 tu; |
||
3461 | u32 gmch_m; |
||
3462 | u32 gmch_n; |
||
3463 | u32 link_m; |
||
3464 | u32 link_n; |
||
3465 | }; |
||
3466 | |||
3467 | static void |
||
3468 | fdi_reduce_ratio(u32 *num, u32 *den) |
||
3469 | { |
||
3470 | while (*num > 0xffffff || *den > 0xffffff) { |
||
3471 | *num >>= 1; |
||
3472 | *den >>= 1; |
||
3473 | } |
||
3474 | } |
||
3475 | |||
3476 | static void |
||
3477 | ironlake_compute_m_n(int bits_per_pixel, int nlanes, int pixel_clock, |
||
3478 | int link_clock, struct fdi_m_n *m_n) |
||
3479 | { |
||
3480 | m_n->tu = 64; /* default size */ |
||
3481 | |||
3482 | /* BUG_ON(pixel_clock > INT_MAX / 36); */ |
||
3483 | m_n->gmch_m = bits_per_pixel * pixel_clock; |
||
3484 | m_n->gmch_n = link_clock * nlanes * 8; |
||
3485 | fdi_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n); |
||
3486 | |||
3487 | m_n->link_m = pixel_clock; |
||
3488 | m_n->link_n = link_clock; |
||
3489 | fdi_reduce_ratio(&m_n->link_m, &m_n->link_n); |
||
3490 | } |
||
3491 | |||
3492 | |||
3493 | struct intel_watermark_params { |
||
3494 | unsigned long fifo_size; |
||
3495 | unsigned long max_wm; |
||
3496 | unsigned long default_wm; |
||
3497 | unsigned long guard_size; |
||
3498 | unsigned long cacheline_size; |
||
3499 | }; |
||
3500 | |||
3501 | /* Pineview has different values for various configs */ |
||
3502 | static const struct intel_watermark_params pineview_display_wm = { |
||
3503 | PINEVIEW_DISPLAY_FIFO, |
||
3504 | PINEVIEW_MAX_WM, |
||
3505 | PINEVIEW_DFT_WM, |
||
3506 | PINEVIEW_GUARD_WM, |
||
3507 | PINEVIEW_FIFO_LINE_SIZE |
||
3508 | }; |
||
3509 | static const struct intel_watermark_params pineview_display_hplloff_wm = { |
||
3510 | PINEVIEW_DISPLAY_FIFO, |
||
3511 | PINEVIEW_MAX_WM, |
||
3512 | PINEVIEW_DFT_HPLLOFF_WM, |
||
3513 | PINEVIEW_GUARD_WM, |
||
3514 | PINEVIEW_FIFO_LINE_SIZE |
||
3515 | }; |
||
3516 | static const struct intel_watermark_params pineview_cursor_wm = { |
||
3517 | PINEVIEW_CURSOR_FIFO, |
||
3518 | PINEVIEW_CURSOR_MAX_WM, |
||
3519 | PINEVIEW_CURSOR_DFT_WM, |
||
3520 | PINEVIEW_CURSOR_GUARD_WM, |
||
3521 | PINEVIEW_FIFO_LINE_SIZE, |
||
3522 | }; |
||
3523 | static const struct intel_watermark_params pineview_cursor_hplloff_wm = { |
||
3524 | PINEVIEW_CURSOR_FIFO, |
||
3525 | PINEVIEW_CURSOR_MAX_WM, |
||
3526 | PINEVIEW_CURSOR_DFT_WM, |
||
3527 | PINEVIEW_CURSOR_GUARD_WM, |
||
3528 | PINEVIEW_FIFO_LINE_SIZE |
||
3529 | }; |
||
3530 | static const struct intel_watermark_params g4x_wm_info = { |
||
3531 | G4X_FIFO_SIZE, |
||
3532 | G4X_MAX_WM, |
||
3533 | G4X_MAX_WM, |
||
3534 | 2, |
||
3535 | G4X_FIFO_LINE_SIZE, |
||
3536 | }; |
||
3537 | static const struct intel_watermark_params g4x_cursor_wm_info = { |
||
3538 | I965_CURSOR_FIFO, |
||
3539 | I965_CURSOR_MAX_WM, |
||
3540 | I965_CURSOR_DFT_WM, |
||
3541 | 2, |
||
3542 | G4X_FIFO_LINE_SIZE, |
||
3543 | }; |
||
3544 | static const struct intel_watermark_params i965_cursor_wm_info = { |
||
3545 | I965_CURSOR_FIFO, |
||
3546 | I965_CURSOR_MAX_WM, |
||
3547 | I965_CURSOR_DFT_WM, |
||
3548 | 2, |
||
3549 | I915_FIFO_LINE_SIZE, |
||
3550 | }; |
||
3551 | static const struct intel_watermark_params i945_wm_info = { |
||
3552 | I945_FIFO_SIZE, |
||
3553 | I915_MAX_WM, |
||
3554 | 1, |
||
3555 | 2, |
||
3556 | I915_FIFO_LINE_SIZE |
||
3557 | }; |
||
3558 | static const struct intel_watermark_params i915_wm_info = { |
||
3559 | I915_FIFO_SIZE, |
||
3560 | I915_MAX_WM, |
||
3561 | 1, |
||
3562 | 2, |
||
3563 | I915_FIFO_LINE_SIZE |
||
3564 | }; |
||
3565 | static const struct intel_watermark_params i855_wm_info = { |
||
3566 | I855GM_FIFO_SIZE, |
||
3567 | I915_MAX_WM, |
||
3568 | 1, |
||
3569 | 2, |
||
3570 | I830_FIFO_LINE_SIZE |
||
3571 | }; |
||
3572 | static const struct intel_watermark_params i830_wm_info = { |
||
3573 | I830_FIFO_SIZE, |
||
3574 | I915_MAX_WM, |
||
3575 | 1, |
||
3576 | 2, |
||
3577 | I830_FIFO_LINE_SIZE |
||
3578 | }; |
||
3579 | |||
3580 | static const struct intel_watermark_params ironlake_display_wm_info = { |
||
3581 | ILK_DISPLAY_FIFO, |
||
3582 | ILK_DISPLAY_MAXWM, |
||
3583 | ILK_DISPLAY_DFTWM, |
||
3584 | 2, |
||
3585 | ILK_FIFO_LINE_SIZE |
||
3586 | }; |
||
3587 | static const struct intel_watermark_params ironlake_cursor_wm_info = { |
||
3588 | ILK_CURSOR_FIFO, |
||
3589 | ILK_CURSOR_MAXWM, |
||
3590 | ILK_CURSOR_DFTWM, |
||
3591 | 2, |
||
3592 | ILK_FIFO_LINE_SIZE |
||
3593 | }; |
||
3594 | static const struct intel_watermark_params ironlake_display_srwm_info = { |
||
3595 | ILK_DISPLAY_SR_FIFO, |
||
3596 | ILK_DISPLAY_MAX_SRWM, |
||
3597 | ILK_DISPLAY_DFT_SRWM, |
||
3598 | 2, |
||
3599 | ILK_FIFO_LINE_SIZE |
||
3600 | }; |
||
3601 | static const struct intel_watermark_params ironlake_cursor_srwm_info = { |
||
3602 | ILK_CURSOR_SR_FIFO, |
||
3603 | ILK_CURSOR_MAX_SRWM, |
||
3604 | ILK_CURSOR_DFT_SRWM, |
||
3605 | 2, |
||
3606 | ILK_FIFO_LINE_SIZE |
||
3607 | }; |
||
3608 | |||
3609 | static const struct intel_watermark_params sandybridge_display_wm_info = { |
||
3610 | SNB_DISPLAY_FIFO, |
||
3611 | SNB_DISPLAY_MAXWM, |
||
3612 | SNB_DISPLAY_DFTWM, |
||
3613 | 2, |
||
3614 | SNB_FIFO_LINE_SIZE |
||
3615 | }; |
||
3616 | static const struct intel_watermark_params sandybridge_cursor_wm_info = { |
||
3617 | SNB_CURSOR_FIFO, |
||
3618 | SNB_CURSOR_MAXWM, |
||
3619 | SNB_CURSOR_DFTWM, |
||
3620 | 2, |
||
3621 | SNB_FIFO_LINE_SIZE |
||
3622 | }; |
||
3623 | static const struct intel_watermark_params sandybridge_display_srwm_info = { |
||
3624 | SNB_DISPLAY_SR_FIFO, |
||
3625 | SNB_DISPLAY_MAX_SRWM, |
||
3626 | SNB_DISPLAY_DFT_SRWM, |
||
3627 | 2, |
||
3628 | SNB_FIFO_LINE_SIZE |
||
3629 | }; |
||
3630 | static const struct intel_watermark_params sandybridge_cursor_srwm_info = { |
||
3631 | SNB_CURSOR_SR_FIFO, |
||
3632 | SNB_CURSOR_MAX_SRWM, |
||
3633 | SNB_CURSOR_DFT_SRWM, |
||
3634 | 2, |
||
3635 | SNB_FIFO_LINE_SIZE |
||
3636 | }; |
||
3637 | |||
3638 | |||
3639 | /** |
||
3640 | * intel_calculate_wm - calculate watermark level |
||
3641 | * @clock_in_khz: pixel clock |
||
3642 | * @wm: chip FIFO params |
||
3643 | * @pixel_size: display pixel size |
||
3644 | * @latency_ns: memory latency for the platform |
||
3645 | * |
||
3646 | * Calculate the watermark level (the level at which the display plane will |
||
3647 | * start fetching from memory again). Each chip has a different display |
||
3648 | * FIFO size and allocation, so the caller needs to figure that out and pass |
||
3649 | * in the correct intel_watermark_params structure. |
||
3650 | * |
||
3651 | * As the pixel clock runs, the FIFO will be drained at a rate that depends |
||
3652 | * on the pixel size. When it reaches the watermark level, it'll start |
||
3653 | * fetching FIFO line sized based chunks from memory until the FIFO fills |
||
3654 | * past the watermark point. If the FIFO drains completely, a FIFO underrun |
||
3655 | * will occur, and a display engine hang could result. |
||
3656 | */ |
||
3657 | static unsigned long intel_calculate_wm(unsigned long clock_in_khz, |
||
3658 | const struct intel_watermark_params *wm, |
||
3659 | int fifo_size, |
||
3660 | int pixel_size, |
||
3661 | unsigned long latency_ns) |
||
3662 | { |
||
3663 | long entries_required, wm_size; |
||
3664 | |||
3665 | /* |
||
3666 | * Note: we need to make sure we don't overflow for various clock & |
||
3667 | * latency values. |
||
3668 | * clocks go from a few thousand to several hundred thousand. |
||
3669 | * latency is usually a few thousand |
||
3670 | */ |
||
3671 | entries_required = ((clock_in_khz / 1000) * pixel_size * latency_ns) / |
||
3672 | 1000; |
||
3673 | entries_required = DIV_ROUND_UP(entries_required, wm->cacheline_size); |
||
3674 | |||
3675 | DRM_DEBUG_KMS("FIFO entries required for mode: %ld\n", entries_required); |
||
3676 | |||
3677 | wm_size = fifo_size - (entries_required + wm->guard_size); |
||
3678 | |||
3679 | DRM_DEBUG_KMS("FIFO watermark level: %ld\n", wm_size); |
||
3680 | |||
3681 | /* Don't promote wm_size to unsigned... */ |
||
3682 | if (wm_size > (long)wm->max_wm) |
||
3683 | wm_size = wm->max_wm; |
||
3684 | if (wm_size <= 0) |
||
3685 | wm_size = wm->default_wm; |
||
3686 | return wm_size; |
||
3687 | } |
||
3688 | |||
3689 | struct cxsr_latency { |
||
3690 | int is_desktop; |
||
3691 | int is_ddr3; |
||
3692 | unsigned long fsb_freq; |
||
3693 | unsigned long mem_freq; |
||
3694 | unsigned long display_sr; |
||
3695 | unsigned long display_hpll_disable; |
||
3696 | unsigned long cursor_sr; |
||
3697 | unsigned long cursor_hpll_disable; |
||
3698 | }; |
||
3699 | |||
3700 | static const struct cxsr_latency cxsr_latency_table[] = { |
||
3701 | {1, 0, 800, 400, 3382, 33382, 3983, 33983}, /* DDR2-400 SC */ |
||
3702 | {1, 0, 800, 667, 3354, 33354, 3807, 33807}, /* DDR2-667 SC */ |
||
3703 | {1, 0, 800, 800, 3347, 33347, 3763, 33763}, /* DDR2-800 SC */ |
||
3704 | {1, 1, 800, 667, 6420, 36420, 6873, 36873}, /* DDR3-667 SC */ |
||
3705 | {1, 1, 800, 800, 5902, 35902, 6318, 36318}, /* DDR3-800 SC */ |
||
3706 | |||
3707 | {1, 0, 667, 400, 3400, 33400, 4021, 34021}, /* DDR2-400 SC */ |
||
3708 | {1, 0, 667, 667, 3372, 33372, 3845, 33845}, /* DDR2-667 SC */ |
||
3709 | {1, 0, 667, 800, 3386, 33386, 3822, 33822}, /* DDR2-800 SC */ |
||
3710 | {1, 1, 667, 667, 6438, 36438, 6911, 36911}, /* DDR3-667 SC */ |
||
3711 | {1, 1, 667, 800, 5941, 35941, 6377, 36377}, /* DDR3-800 SC */ |
||
3712 | |||
3713 | {1, 0, 400, 400, 3472, 33472, 4173, 34173}, /* DDR2-400 SC */ |
||
3714 | {1, 0, 400, 667, 3443, 33443, 3996, 33996}, /* DDR2-667 SC */ |
||
3715 | {1, 0, 400, 800, 3430, 33430, 3946, 33946}, /* DDR2-800 SC */ |
||
3716 | {1, 1, 400, 667, 6509, 36509, 7062, 37062}, /* DDR3-667 SC */ |
||
3717 | {1, 1, 400, 800, 5985, 35985, 6501, 36501}, /* DDR3-800 SC */ |
||
3718 | |||
3719 | {0, 0, 800, 400, 3438, 33438, 4065, 34065}, /* DDR2-400 SC */ |
||
3720 | {0, 0, 800, 667, 3410, 33410, 3889, 33889}, /* DDR2-667 SC */ |
||
3721 | {0, 0, 800, 800, 3403, 33403, 3845, 33845}, /* DDR2-800 SC */ |
||
3722 | {0, 1, 800, 667, 6476, 36476, 6955, 36955}, /* DDR3-667 SC */ |
||
3723 | {0, 1, 800, 800, 5958, 35958, 6400, 36400}, /* DDR3-800 SC */ |
||
3724 | |||
3725 | {0, 0, 667, 400, 3456, 33456, 4103, 34106}, /* DDR2-400 SC */ |
||
3726 | {0, 0, 667, 667, 3428, 33428, 3927, 33927}, /* DDR2-667 SC */ |
||
3727 | {0, 0, 667, 800, 3443, 33443, 3905, 33905}, /* DDR2-800 SC */ |
||
3728 | {0, 1, 667, 667, 6494, 36494, 6993, 36993}, /* DDR3-667 SC */ |
||
3729 | {0, 1, 667, 800, 5998, 35998, 6460, 36460}, /* DDR3-800 SC */ |
||
3730 | |||
3731 | {0, 0, 400, 400, 3528, 33528, 4255, 34255}, /* DDR2-400 SC */ |
||
3732 | {0, 0, 400, 667, 3500, 33500, 4079, 34079}, /* DDR2-667 SC */ |
||
3733 | {0, 0, 400, 800, 3487, 33487, 4029, 34029}, /* DDR2-800 SC */ |
||
3734 | {0, 1, 400, 667, 6566, 36566, 7145, 37145}, /* DDR3-667 SC */ |
||
3735 | {0, 1, 400, 800, 6042, 36042, 6584, 36584}, /* DDR3-800 SC */ |
||
3736 | }; |
||
3737 | |||
3738 | static const struct cxsr_latency *intel_get_cxsr_latency(int is_desktop, |
||
3739 | int is_ddr3, |
||
3740 | int fsb, |
||
3741 | int mem) |
||
3742 | { |
||
3743 | const struct cxsr_latency *latency; |
||
3744 | int i; |
||
3745 | |||
3746 | if (fsb == 0 || mem == 0) |
||
3747 | return NULL; |
||
3748 | |||
3749 | for (i = 0; i < ARRAY_SIZE(cxsr_latency_table); i++) { |
||
3750 | latency = &cxsr_latency_table[i]; |
||
3751 | if (is_desktop == latency->is_desktop && |
||
3752 | is_ddr3 == latency->is_ddr3 && |
||
3753 | fsb == latency->fsb_freq && mem == latency->mem_freq) |
||
3754 | return latency; |
||
3755 | } |
||
3756 | |||
3757 | DRM_DEBUG_KMS("Unknown FSB/MEM found, disable CxSR\n"); |
||
3758 | |||
3759 | return NULL; |
||
3760 | } |
||
3761 | |||
3762 | static void pineview_disable_cxsr(struct drm_device *dev) |
||
3763 | { |
||
3764 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3765 | |||
3766 | /* deactivate cxsr */ |
||
3767 | I915_WRITE(DSPFW3, I915_READ(DSPFW3) & ~PINEVIEW_SELF_REFRESH_EN); |
||
3768 | } |
||
3769 | |||
3770 | /* |
||
3771 | * Latency for FIFO fetches is dependent on several factors: |
||
3772 | * - memory configuration (speed, channels) |
||
3773 | * - chipset |
||
3774 | * - current MCH state |
||
3775 | * It can be fairly high in some situations, so here we assume a fairly |
||
3776 | * pessimal value. It's a tradeoff between extra memory fetches (if we |
||
3777 | * set this value too high, the FIFO will fetch frequently to stay full) |
||
3778 | * and power consumption (set it too low to save power and we might see |
||
3779 | * FIFO underruns and display "flicker"). |
||
3780 | * |
||
3781 | * A value of 5us seems to be a good balance; safe for very low end |
||
3782 | * platforms but not overly aggressive on lower latency configs. |
||
3783 | */ |
||
3784 | static const int latency_ns = 5000; |
||
3785 | |||
3786 | static int i9xx_get_fifo_size(struct drm_device *dev, int plane) |
||
3787 | { |
||
3788 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3789 | uint32_t dsparb = I915_READ(DSPARB); |
||
3790 | int size; |
||
3791 | |||
3792 | size = dsparb & 0x7f; |
||
3793 | if (plane) |
||
3794 | size = ((dsparb >> DSPARB_CSTART_SHIFT) & 0x7f) - size; |
||
3795 | |||
3796 | DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb, |
||
3797 | plane ? "B" : "A", size); |
||
3798 | |||
3799 | return size; |
||
3800 | } |
||
3801 | |||
3802 | static int i85x_get_fifo_size(struct drm_device *dev, int plane) |
||
3803 | { |
||
3804 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3805 | uint32_t dsparb = I915_READ(DSPARB); |
||
3806 | int size; |
||
3807 | |||
3808 | size = dsparb & 0x1ff; |
||
3809 | if (plane) |
||
3810 | size = ((dsparb >> DSPARB_BEND_SHIFT) & 0x1ff) - size; |
||
3811 | size >>= 1; /* Convert to cachelines */ |
||
3812 | |||
3813 | DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb, |
||
3814 | plane ? "B" : "A", size); |
||
3815 | |||
3816 | return size; |
||
3817 | } |
||
3818 | |||
3819 | static int i845_get_fifo_size(struct drm_device *dev, int plane) |
||
3820 | { |
||
3821 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3822 | uint32_t dsparb = I915_READ(DSPARB); |
||
3823 | int size; |
||
3824 | |||
3825 | size = dsparb & 0x7f; |
||
3826 | size >>= 2; /* Convert to cachelines */ |
||
3827 | |||
3828 | DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb, |
||
3829 | plane ? "B" : "A", |
||
3830 | size); |
||
3831 | |||
3832 | return size; |
||
3833 | } |
||
3834 | |||
3835 | static int i830_get_fifo_size(struct drm_device *dev, int plane) |
||
3836 | { |
||
3837 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3838 | uint32_t dsparb = I915_READ(DSPARB); |
||
3839 | int size; |
||
3840 | |||
3841 | size = dsparb & 0x7f; |
||
3842 | size >>= 1; /* Convert to cachelines */ |
||
3843 | |||
3844 | DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb, |
||
3845 | plane ? "B" : "A", size); |
||
3846 | |||
3847 | return size; |
||
3848 | } |
||
3849 | |||
3850 | static struct drm_crtc *single_enabled_crtc(struct drm_device *dev) |
||
3851 | { |
||
3852 | struct drm_crtc *crtc, *enabled = NULL; |
||
3853 | |||
3854 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
||
3855 | if (crtc->enabled && crtc->fb) { |
||
3856 | if (enabled) |
||
3857 | return NULL; |
||
3858 | enabled = crtc; |
||
3859 | } |
||
3860 | } |
||
3861 | |||
3862 | return enabled; |
||
3863 | } |
||
3864 | |||
3865 | static void pineview_update_wm(struct drm_device *dev) |
||
3866 | { |
||
3867 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
3868 | struct drm_crtc *crtc; |
||
3869 | const struct cxsr_latency *latency; |
||
3870 | u32 reg; |
||
3871 | unsigned long wm; |
||
3872 | |||
3873 | latency = intel_get_cxsr_latency(IS_PINEVIEW_G(dev), dev_priv->is_ddr3, |
||
3874 | dev_priv->fsb_freq, dev_priv->mem_freq); |
||
3875 | if (!latency) { |
||
3876 | DRM_DEBUG_KMS("Unknown FSB/MEM found, disable CxSR\n"); |
||
3877 | pineview_disable_cxsr(dev); |
||
3878 | return; |
||
3879 | } |
||
3880 | |||
3881 | crtc = single_enabled_crtc(dev); |
||
3882 | if (crtc) { |
||
3883 | int clock = crtc->mode.clock; |
||
3884 | int pixel_size = crtc->fb->bits_per_pixel / 8; |
||
3885 | |||
3886 | /* Display SR */ |
||
3887 | wm = intel_calculate_wm(clock, &pineview_display_wm, |
||
3888 | pineview_display_wm.fifo_size, |
||
3889 | pixel_size, latency->display_sr); |
||
3890 | reg = I915_READ(DSPFW1); |
||
3891 | reg &= ~DSPFW_SR_MASK; |
||
3892 | reg |= wm << DSPFW_SR_SHIFT; |
||
3893 | I915_WRITE(DSPFW1, reg); |
||
3894 | DRM_DEBUG_KMS("DSPFW1 register is %x\n", reg); |
||
3895 | |||
3896 | /* cursor SR */ |
||
3897 | wm = intel_calculate_wm(clock, &pineview_cursor_wm, |
||
3898 | pineview_display_wm.fifo_size, |
||
3899 | pixel_size, latency->cursor_sr); |
||
3900 | reg = I915_READ(DSPFW3); |
||
3901 | reg &= ~DSPFW_CURSOR_SR_MASK; |
||
3902 | reg |= (wm & 0x3f) << DSPFW_CURSOR_SR_SHIFT; |
||
3903 | I915_WRITE(DSPFW3, reg); |
||
3904 | |||
3905 | /* Display HPLL off SR */ |
||
3906 | wm = intel_calculate_wm(clock, &pineview_display_hplloff_wm, |
||
3907 | pineview_display_hplloff_wm.fifo_size, |
||
3908 | pixel_size, latency->display_hpll_disable); |
||
3909 | reg = I915_READ(DSPFW3); |
||
3910 | reg &= ~DSPFW_HPLL_SR_MASK; |
||
3911 | reg |= wm & DSPFW_HPLL_SR_MASK; |
||
3912 | I915_WRITE(DSPFW3, reg); |
||
3913 | |||
3914 | /* cursor HPLL off SR */ |
||
3915 | wm = intel_calculate_wm(clock, &pineview_cursor_hplloff_wm, |
||
3916 | pineview_display_hplloff_wm.fifo_size, |
||
3917 | pixel_size, latency->cursor_hpll_disable); |
||
3918 | reg = I915_READ(DSPFW3); |
||
3919 | reg &= ~DSPFW_HPLL_CURSOR_MASK; |
||
3920 | reg |= (wm & 0x3f) << DSPFW_HPLL_CURSOR_SHIFT; |
||
3921 | I915_WRITE(DSPFW3, reg); |
||
3922 | DRM_DEBUG_KMS("DSPFW3 register is %x\n", reg); |
||
3923 | |||
3924 | /* activate cxsr */ |
||
3925 | I915_WRITE(DSPFW3, |
||
3926 | I915_READ(DSPFW3) | PINEVIEW_SELF_REFRESH_EN); |
||
3927 | DRM_DEBUG_KMS("Self-refresh is enabled\n"); |
||
3928 | } else { |
||
3929 | pineview_disable_cxsr(dev); |
||
3930 | DRM_DEBUG_KMS("Self-refresh is disabled\n"); |
||
3931 | } |
||
3932 | } |
||
3933 | |||
3934 | static bool g4x_compute_wm0(struct drm_device *dev, |
||
3935 | int plane, |
||
3936 | const struct intel_watermark_params *display, |
||
3937 | int display_latency_ns, |
||
3938 | const struct intel_watermark_params *cursor, |
||
3939 | int cursor_latency_ns, |
||
3940 | int *plane_wm, |
||
3941 | int *cursor_wm) |
||
3942 | { |
||
3943 | struct drm_crtc *crtc; |
||
3944 | int htotal, hdisplay, clock, pixel_size; |
||
3945 | int line_time_us, line_count; |
||
3946 | int entries, tlb_miss; |
||
3947 | |||
3948 | crtc = intel_get_crtc_for_plane(dev, plane); |
||
3949 | if (crtc->fb == NULL || !crtc->enabled) { |
||
3950 | *cursor_wm = cursor->guard_size; |
||
3951 | *plane_wm = display->guard_size; |
||
3952 | return false; |
||
3953 | } |
||
3954 | |||
3955 | htotal = crtc->mode.htotal; |
||
3956 | hdisplay = crtc->mode.hdisplay; |
||
3957 | clock = crtc->mode.clock; |
||
3958 | pixel_size = crtc->fb->bits_per_pixel / 8; |
||
3959 | |||
3960 | /* Use the small buffer method to calculate plane watermark */ |
||
3961 | entries = ((clock * pixel_size / 1000) * display_latency_ns) / 1000; |
||
3962 | tlb_miss = display->fifo_size*display->cacheline_size - hdisplay * 8; |
||
3963 | if (tlb_miss > 0) |
||
3964 | entries += tlb_miss; |
||
3965 | entries = DIV_ROUND_UP(entries, display->cacheline_size); |
||
3966 | *plane_wm = entries + display->guard_size; |
||
3967 | if (*plane_wm > (int)display->max_wm) |
||
3968 | *plane_wm = display->max_wm; |
||
3969 | |||
3970 | /* Use the large buffer method to calculate cursor watermark */ |
||
3971 | line_time_us = ((htotal * 1000) / clock); |
||
3972 | line_count = (cursor_latency_ns / line_time_us + 1000) / 1000; |
||
3973 | entries = line_count * 64 * pixel_size; |
||
3974 | tlb_miss = cursor->fifo_size*cursor->cacheline_size - hdisplay * 8; |
||
3975 | if (tlb_miss > 0) |
||
3976 | entries += tlb_miss; |
||
3977 | entries = DIV_ROUND_UP(entries, cursor->cacheline_size); |
||
3978 | *cursor_wm = entries + cursor->guard_size; |
||
3979 | if (*cursor_wm > (int)cursor->max_wm) |
||
3980 | *cursor_wm = (int)cursor->max_wm; |
||
3981 | |||
3982 | return true; |
||
3983 | } |
||
3984 | |||
3985 | /* |
||
3986 | * Check the wm result. |
||
3987 | * |
||
3988 | * If any calculated watermark values is larger than the maximum value that |
||
3989 | * can be programmed into the associated watermark register, that watermark |
||
3990 | * must be disabled. |
||
3991 | */ |
||
3992 | static bool g4x_check_srwm(struct drm_device *dev, |
||
3993 | int display_wm, int cursor_wm, |
||
3994 | const struct intel_watermark_params *display, |
||
3995 | const struct intel_watermark_params *cursor) |
||
3996 | { |
||
3997 | DRM_DEBUG_KMS("SR watermark: display plane %d, cursor %d\n", |
||
3998 | display_wm, cursor_wm); |
||
3999 | |||
4000 | if (display_wm > display->max_wm) { |
||
4001 | DRM_DEBUG_KMS("display watermark is too large(%d/%ld), disabling\n", |
||
4002 | display_wm, display->max_wm); |
||
4003 | return false; |
||
4004 | } |
||
4005 | |||
4006 | if (cursor_wm > cursor->max_wm) { |
||
4007 | DRM_DEBUG_KMS("cursor watermark is too large(%d/%ld), disabling\n", |
||
4008 | cursor_wm, cursor->max_wm); |
||
4009 | return false; |
||
4010 | } |
||
4011 | |||
4012 | if (!(display_wm || cursor_wm)) { |
||
4013 | DRM_DEBUG_KMS("SR latency is 0, disabling\n"); |
||
4014 | return false; |
||
4015 | } |
||
4016 | |||
4017 | return true; |
||
4018 | } |
||
4019 | |||
4020 | static bool g4x_compute_srwm(struct drm_device *dev, |
||
4021 | int plane, |
||
4022 | int latency_ns, |
||
4023 | const struct intel_watermark_params *display, |
||
4024 | const struct intel_watermark_params *cursor, |
||
4025 | int *display_wm, int *cursor_wm) |
||
4026 | { |
||
4027 | struct drm_crtc *crtc; |
||
4028 | int hdisplay, htotal, pixel_size, clock; |
||
4029 | unsigned long line_time_us; |
||
4030 | int line_count, line_size; |
||
4031 | int small, large; |
||
4032 | int entries; |
||
4033 | |||
4034 | if (!latency_ns) { |
||
4035 | *display_wm = *cursor_wm = 0; |
||
4036 | return false; |
||
4037 | } |
||
4038 | |||
4039 | crtc = intel_get_crtc_for_plane(dev, plane); |
||
4040 | hdisplay = crtc->mode.hdisplay; |
||
4041 | htotal = crtc->mode.htotal; |
||
4042 | clock = crtc->mode.clock; |
||
4043 | pixel_size = crtc->fb->bits_per_pixel / 8; |
||
4044 | |||
4045 | line_time_us = (htotal * 1000) / clock; |
||
4046 | line_count = (latency_ns / line_time_us + 1000) / 1000; |
||
4047 | line_size = hdisplay * pixel_size; |
||
4048 | |||
4049 | /* Use the minimum of the small and large buffer method for primary */ |
||
4050 | small = ((clock * pixel_size / 1000) * latency_ns) / 1000; |
||
4051 | large = line_count * line_size; |
||
4052 | |||
4053 | entries = DIV_ROUND_UP(min(small, large), display->cacheline_size); |
||
4054 | *display_wm = entries + display->guard_size; |
||
4055 | |||
4056 | /* calculate the self-refresh watermark for display cursor */ |
||
4057 | entries = line_count * pixel_size * 64; |
||
4058 | entries = DIV_ROUND_UP(entries, cursor->cacheline_size); |
||
4059 | *cursor_wm = entries + cursor->guard_size; |
||
4060 | |||
4061 | return g4x_check_srwm(dev, |
||
4062 | *display_wm, *cursor_wm, |
||
4063 | display, cursor); |
||
4064 | } |
||
4065 | |||
4066 | #define single_plane_enabled(mask) is_power_of_2(mask) |
||
4067 | |||
4068 | static void g4x_update_wm(struct drm_device *dev) |
||
4069 | { |
||
4070 | static const int sr_latency_ns = 12000; |
||
4071 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4072 | int planea_wm, planeb_wm, cursora_wm, cursorb_wm; |
||
4073 | int plane_sr, cursor_sr; |
||
4074 | unsigned int enabled = 0; |
||
4075 | |||
4076 | if (g4x_compute_wm0(dev, 0, |
||
4077 | &g4x_wm_info, latency_ns, |
||
4078 | &g4x_cursor_wm_info, latency_ns, |
||
4079 | &planea_wm, &cursora_wm)) |
||
4080 | enabled |= 1; |
||
4081 | |||
4082 | if (g4x_compute_wm0(dev, 1, |
||
4083 | &g4x_wm_info, latency_ns, |
||
4084 | &g4x_cursor_wm_info, latency_ns, |
||
4085 | &planeb_wm, &cursorb_wm)) |
||
4086 | enabled |= 2; |
||
4087 | |||
4088 | plane_sr = cursor_sr = 0; |
||
4089 | if (single_plane_enabled(enabled) && |
||
4090 | g4x_compute_srwm(dev, ffs(enabled) - 1, |
||
4091 | sr_latency_ns, |
||
4092 | &g4x_wm_info, |
||
4093 | &g4x_cursor_wm_info, |
||
4094 | &plane_sr, &cursor_sr)) |
||
4095 | I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN); |
||
4096 | else |
||
4097 | I915_WRITE(FW_BLC_SELF, |
||
4098 | I915_READ(FW_BLC_SELF) & ~FW_BLC_SELF_EN); |
||
4099 | |||
4100 | DRM_DEBUG_KMS("Setting FIFO watermarks - A: plane=%d, cursor=%d, B: plane=%d, cursor=%d, SR: plane=%d, cursor=%d\n", |
||
4101 | planea_wm, cursora_wm, |
||
4102 | planeb_wm, cursorb_wm, |
||
4103 | plane_sr, cursor_sr); |
||
4104 | |||
4105 | I915_WRITE(DSPFW1, |
||
4106 | (plane_sr << DSPFW_SR_SHIFT) | |
||
4107 | (cursorb_wm << DSPFW_CURSORB_SHIFT) | |
||
4108 | (planeb_wm << DSPFW_PLANEB_SHIFT) | |
||
4109 | planea_wm); |
||
4110 | I915_WRITE(DSPFW2, |
||
4111 | (I915_READ(DSPFW2) & DSPFW_CURSORA_MASK) | |
||
4112 | (cursora_wm << DSPFW_CURSORA_SHIFT)); |
||
4113 | /* HPLL off in SR has some issues on G4x... disable it */ |
||
4114 | I915_WRITE(DSPFW3, |
||
4115 | (I915_READ(DSPFW3) & ~DSPFW_HPLL_SR_EN) | |
||
4116 | (cursor_sr << DSPFW_CURSOR_SR_SHIFT)); |
||
4117 | } |
||
4118 | |||
4119 | static void i965_update_wm(struct drm_device *dev) |
||
4120 | { |
||
4121 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4122 | struct drm_crtc *crtc; |
||
4123 | int srwm = 1; |
||
4124 | int cursor_sr = 16; |
||
4125 | |||
4126 | /* Calc sr entries for one plane configs */ |
||
4127 | crtc = single_enabled_crtc(dev); |
||
4128 | if (crtc) { |
||
4129 | /* self-refresh has much higher latency */ |
||
4130 | static const int sr_latency_ns = 12000; |
||
4131 | int clock = crtc->mode.clock; |
||
4132 | int htotal = crtc->mode.htotal; |
||
4133 | int hdisplay = crtc->mode.hdisplay; |
||
4134 | int pixel_size = crtc->fb->bits_per_pixel / 8; |
||
4135 | unsigned long line_time_us; |
||
4136 | int entries; |
||
4137 | |||
4138 | line_time_us = ((htotal * 1000) / clock); |
||
4139 | |||
4140 | /* Use ns/us then divide to preserve precision */ |
||
4141 | entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) * |
||
4142 | pixel_size * hdisplay; |
||
4143 | entries = DIV_ROUND_UP(entries, I915_FIFO_LINE_SIZE); |
||
4144 | srwm = I965_FIFO_SIZE - entries; |
||
4145 | if (srwm < 0) |
||
4146 | srwm = 1; |
||
4147 | srwm &= 0x1ff; |
||
4148 | DRM_DEBUG_KMS("self-refresh entries: %d, wm: %d\n", |
||
4149 | entries, srwm); |
||
4150 | |||
4151 | entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) * |
||
4152 | pixel_size * 64; |
||
4153 | entries = DIV_ROUND_UP(entries, |
||
4154 | i965_cursor_wm_info.cacheline_size); |
||
4155 | cursor_sr = i965_cursor_wm_info.fifo_size - |
||
4156 | (entries + i965_cursor_wm_info.guard_size); |
||
4157 | |||
4158 | if (cursor_sr > i965_cursor_wm_info.max_wm) |
||
4159 | cursor_sr = i965_cursor_wm_info.max_wm; |
||
4160 | |||
4161 | DRM_DEBUG_KMS("self-refresh watermark: display plane %d " |
||
4162 | "cursor %d\n", srwm, cursor_sr); |
||
4163 | |||
4164 | if (IS_CRESTLINE(dev)) |
||
4165 | I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN); |
||
4166 | } else { |
||
4167 | /* Turn off self refresh if both pipes are enabled */ |
||
4168 | if (IS_CRESTLINE(dev)) |
||
4169 | I915_WRITE(FW_BLC_SELF, I915_READ(FW_BLC_SELF) |
||
4170 | & ~FW_BLC_SELF_EN); |
||
4171 | } |
||
4172 | |||
4173 | DRM_DEBUG_KMS("Setting FIFO watermarks - A: 8, B: 8, C: 8, SR %d\n", |
||
4174 | srwm); |
||
4175 | |||
4176 | /* 965 has limitations... */ |
||
4177 | I915_WRITE(DSPFW1, (srwm << DSPFW_SR_SHIFT) | |
||
4178 | (8 << 16) | (8 << 8) | (8 << 0)); |
||
4179 | I915_WRITE(DSPFW2, (8 << 8) | (8 << 0)); |
||
4180 | /* update cursor SR watermark */ |
||
4181 | I915_WRITE(DSPFW3, (cursor_sr << DSPFW_CURSOR_SR_SHIFT)); |
||
4182 | } |
||
4183 | |||
4184 | static void i9xx_update_wm(struct drm_device *dev) |
||
4185 | { |
||
4186 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4187 | const struct intel_watermark_params *wm_info; |
||
4188 | uint32_t fwater_lo; |
||
4189 | uint32_t fwater_hi; |
||
4190 | int cwm, srwm = 1; |
||
4191 | int fifo_size; |
||
4192 | int planea_wm, planeb_wm; |
||
4193 | struct drm_crtc *crtc, *enabled = NULL; |
||
4194 | |||
4195 | if (IS_I945GM(dev)) |
||
4196 | wm_info = &i945_wm_info; |
||
4197 | else if (!IS_GEN2(dev)) |
||
4198 | wm_info = &i915_wm_info; |
||
4199 | else |
||
4200 | wm_info = &i855_wm_info; |
||
4201 | |||
4202 | fifo_size = dev_priv->display.get_fifo_size(dev, 0); |
||
4203 | crtc = intel_get_crtc_for_plane(dev, 0); |
||
4204 | if (crtc->enabled && crtc->fb) { |
||
4205 | planea_wm = intel_calculate_wm(crtc->mode.clock, |
||
4206 | wm_info, fifo_size, |
||
4207 | crtc->fb->bits_per_pixel / 8, |
||
4208 | latency_ns); |
||
4209 | enabled = crtc; |
||
4210 | } else |
||
4211 | planea_wm = fifo_size - wm_info->guard_size; |
||
4212 | |||
4213 | fifo_size = dev_priv->display.get_fifo_size(dev, 1); |
||
4214 | crtc = intel_get_crtc_for_plane(dev, 1); |
||
4215 | if (crtc->enabled && crtc->fb) { |
||
4216 | planeb_wm = intel_calculate_wm(crtc->mode.clock, |
||
4217 | wm_info, fifo_size, |
||
4218 | crtc->fb->bits_per_pixel / 8, |
||
4219 | latency_ns); |
||
4220 | if (enabled == NULL) |
||
4221 | enabled = crtc; |
||
4222 | else |
||
4223 | enabled = NULL; |
||
4224 | } else |
||
4225 | planeb_wm = fifo_size - wm_info->guard_size; |
||
4226 | |||
4227 | DRM_DEBUG_KMS("FIFO watermarks - A: %d, B: %d\n", planea_wm, planeb_wm); |
||
4228 | |||
4229 | /* |
||
4230 | * Overlay gets an aggressive default since video jitter is bad. |
||
4231 | */ |
||
4232 | cwm = 2; |
||
4233 | |||
4234 | /* Play safe and disable self-refresh before adjusting watermarks. */ |
||
4235 | if (IS_I945G(dev) || IS_I945GM(dev)) |
||
4236 | I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN_MASK | 0); |
||
4237 | else if (IS_I915GM(dev)) |
||
4238 | I915_WRITE(INSTPM, I915_READ(INSTPM) & ~INSTPM_SELF_EN); |
||
4239 | |||
4240 | /* Calc sr entries for one plane configs */ |
||
4241 | if (HAS_FW_BLC(dev) && enabled) { |
||
4242 | /* self-refresh has much higher latency */ |
||
4243 | static const int sr_latency_ns = 6000; |
||
4244 | int clock = enabled->mode.clock; |
||
4245 | int htotal = enabled->mode.htotal; |
||
4246 | int hdisplay = enabled->mode.hdisplay; |
||
4247 | int pixel_size = enabled->fb->bits_per_pixel / 8; |
||
4248 | unsigned long line_time_us; |
||
4249 | int entries; |
||
4250 | |||
4251 | line_time_us = (htotal * 1000) / clock; |
||
4252 | |||
4253 | /* Use ns/us then divide to preserve precision */ |
||
4254 | entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) * |
||
4255 | pixel_size * hdisplay; |
||
4256 | entries = DIV_ROUND_UP(entries, wm_info->cacheline_size); |
||
4257 | DRM_DEBUG_KMS("self-refresh entries: %d\n", entries); |
||
4258 | srwm = wm_info->fifo_size - entries; |
||
4259 | if (srwm < 0) |
||
4260 | srwm = 1; |
||
4261 | |||
4262 | if (IS_I945G(dev) || IS_I945GM(dev)) |
||
4263 | I915_WRITE(FW_BLC_SELF, |
||
4264 | FW_BLC_SELF_FIFO_MASK | (srwm & 0xff)); |
||
4265 | else if (IS_I915GM(dev)) |
||
4266 | I915_WRITE(FW_BLC_SELF, srwm & 0x3f); |
||
4267 | } |
||
4268 | |||
4269 | DRM_DEBUG_KMS("Setting FIFO watermarks - A: %d, B: %d, C: %d, SR %d\n", |
||
4270 | planea_wm, planeb_wm, cwm, srwm); |
||
4271 | |||
4272 | fwater_lo = ((planeb_wm & 0x3f) << 16) | (planea_wm & 0x3f); |
||
4273 | fwater_hi = (cwm & 0x1f); |
||
4274 | |||
4275 | /* Set request length to 8 cachelines per fetch */ |
||
4276 | fwater_lo = fwater_lo | (1 << 24) | (1 << 8); |
||
4277 | fwater_hi = fwater_hi | (1 << 8); |
||
4278 | |||
4279 | I915_WRITE(FW_BLC, fwater_lo); |
||
4280 | I915_WRITE(FW_BLC2, fwater_hi); |
||
4281 | |||
4282 | if (HAS_FW_BLC(dev)) { |
||
4283 | if (enabled) { |
||
4284 | if (IS_I945G(dev) || IS_I945GM(dev)) |
||
4285 | I915_WRITE(FW_BLC_SELF, |
||
4286 | FW_BLC_SELF_EN_MASK | FW_BLC_SELF_EN); |
||
4287 | else if (IS_I915GM(dev)) |
||
4288 | I915_WRITE(INSTPM, I915_READ(INSTPM) | INSTPM_SELF_EN); |
||
4289 | DRM_DEBUG_KMS("memory self refresh enabled\n"); |
||
4290 | } else |
||
4291 | DRM_DEBUG_KMS("memory self refresh disabled\n"); |
||
4292 | } |
||
4293 | } |
||
4294 | |||
4295 | static void i830_update_wm(struct drm_device *dev) |
||
4296 | { |
||
4297 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4298 | struct drm_crtc *crtc; |
||
4299 | uint32_t fwater_lo; |
||
4300 | int planea_wm; |
||
4301 | |||
4302 | crtc = single_enabled_crtc(dev); |
||
4303 | if (crtc == NULL) |
||
4304 | return; |
||
4305 | |||
4306 | planea_wm = intel_calculate_wm(crtc->mode.clock, &i830_wm_info, |
||
4307 | dev_priv->display.get_fifo_size(dev, 0), |
||
4308 | crtc->fb->bits_per_pixel / 8, |
||
4309 | latency_ns); |
||
4310 | fwater_lo = I915_READ(FW_BLC) & ~0xfff; |
||
4311 | fwater_lo |= (3<<8) | planea_wm; |
||
4312 | |||
4313 | DRM_DEBUG_KMS("Setting FIFO watermarks - A: %d\n", planea_wm); |
||
4314 | |||
4315 | I915_WRITE(FW_BLC, fwater_lo); |
||
4316 | } |
||
4317 | |||
4318 | #define ILK_LP0_PLANE_LATENCY 700 |
||
4319 | #define ILK_LP0_CURSOR_LATENCY 1300 |
||
4320 | |||
4321 | /* |
||
4322 | * Check the wm result. |
||
4323 | * |
||
4324 | * If any calculated watermark values is larger than the maximum value that |
||
4325 | * can be programmed into the associated watermark register, that watermark |
||
4326 | * must be disabled. |
||
4327 | */ |
||
4328 | static bool ironlake_check_srwm(struct drm_device *dev, int level, |
||
4329 | int fbc_wm, int display_wm, int cursor_wm, |
||
4330 | const struct intel_watermark_params *display, |
||
4331 | const struct intel_watermark_params *cursor) |
||
4332 | { |
||
4333 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4334 | |||
4335 | DRM_DEBUG_KMS("watermark %d: display plane %d, fbc lines %d," |
||
4336 | " cursor %d\n", level, display_wm, fbc_wm, cursor_wm); |
||
4337 | |||
4338 | if (fbc_wm > SNB_FBC_MAX_SRWM) { |
||
4339 | DRM_DEBUG_KMS("fbc watermark(%d) is too large(%d), disabling wm%d+\n", |
||
4340 | fbc_wm, SNB_FBC_MAX_SRWM, level); |
||
4341 | |||
4342 | /* fbc has it's own way to disable FBC WM */ |
||
4343 | I915_WRITE(DISP_ARB_CTL, |
||
4344 | I915_READ(DISP_ARB_CTL) | DISP_FBC_WM_DIS); |
||
4345 | return false; |
||
4346 | } |
||
4347 | |||
4348 | if (display_wm > display->max_wm) { |
||
4349 | DRM_DEBUG_KMS("display watermark(%d) is too large(%d), disabling wm%d+\n", |
||
4350 | display_wm, SNB_DISPLAY_MAX_SRWM, level); |
||
4351 | return false; |
||
4352 | } |
||
4353 | |||
4354 | if (cursor_wm > cursor->max_wm) { |
||
4355 | DRM_DEBUG_KMS("cursor watermark(%d) is too large(%d), disabling wm%d+\n", |
||
4356 | cursor_wm, SNB_CURSOR_MAX_SRWM, level); |
||
4357 | return false; |
||
4358 | } |
||
4359 | |||
4360 | if (!(fbc_wm || display_wm || cursor_wm)) { |
||
4361 | DRM_DEBUG_KMS("latency %d is 0, disabling wm%d+\n", level, level); |
||
4362 | return false; |
||
4363 | } |
||
4364 | |||
4365 | return true; |
||
4366 | } |
||
4367 | |||
4368 | /* |
||
4369 | * Compute watermark values of WM[1-3], |
||
4370 | */ |
||
4371 | static bool ironlake_compute_srwm(struct drm_device *dev, int level, int plane, |
||
4372 | int latency_ns, |
||
4373 | const struct intel_watermark_params *display, |
||
4374 | const struct intel_watermark_params *cursor, |
||
4375 | int *fbc_wm, int *display_wm, int *cursor_wm) |
||
4376 | { |
||
4377 | struct drm_crtc *crtc; |
||
4378 | unsigned long line_time_us; |
||
4379 | int hdisplay, htotal, pixel_size, clock; |
||
4380 | int line_count, line_size; |
||
4381 | int small, large; |
||
4382 | int entries; |
||
4383 | |||
4384 | if (!latency_ns) { |
||
4385 | *fbc_wm = *display_wm = *cursor_wm = 0; |
||
4386 | return false; |
||
4387 | } |
||
4388 | |||
4389 | crtc = intel_get_crtc_for_plane(dev, plane); |
||
4390 | hdisplay = crtc->mode.hdisplay; |
||
4391 | htotal = crtc->mode.htotal; |
||
4392 | clock = crtc->mode.clock; |
||
4393 | pixel_size = crtc->fb->bits_per_pixel / 8; |
||
4394 | |||
4395 | line_time_us = (htotal * 1000) / clock; |
||
4396 | line_count = (latency_ns / line_time_us + 1000) / 1000; |
||
4397 | line_size = hdisplay * pixel_size; |
||
4398 | |||
4399 | /* Use the minimum of the small and large buffer method for primary */ |
||
4400 | small = ((clock * pixel_size / 1000) * latency_ns) / 1000; |
||
4401 | large = line_count * line_size; |
||
4402 | |||
4403 | entries = DIV_ROUND_UP(min(small, large), display->cacheline_size); |
||
4404 | *display_wm = entries + display->guard_size; |
||
4405 | |||
4406 | /* |
||
4407 | * Spec says: |
||
4408 | * FBC WM = ((Final Primary WM * 64) / number of bytes per line) + 2 |
||
4409 | */ |
||
4410 | *fbc_wm = DIV_ROUND_UP(*display_wm * 64, line_size) + 2; |
||
4411 | |||
4412 | /* calculate the self-refresh watermark for display cursor */ |
||
4413 | entries = line_count * pixel_size * 64; |
||
4414 | entries = DIV_ROUND_UP(entries, cursor->cacheline_size); |
||
4415 | *cursor_wm = entries + cursor->guard_size; |
||
4416 | |||
4417 | return ironlake_check_srwm(dev, level, |
||
4418 | *fbc_wm, *display_wm, *cursor_wm, |
||
4419 | display, cursor); |
||
4420 | } |
||
4421 | |||
4422 | static void ironlake_update_wm(struct drm_device *dev) |
||
4423 | { |
||
4424 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4425 | int fbc_wm, plane_wm, cursor_wm; |
||
4426 | unsigned int enabled; |
||
4427 | |||
4428 | enabled = 0; |
||
4429 | if (g4x_compute_wm0(dev, 0, |
||
4430 | &ironlake_display_wm_info, |
||
4431 | ILK_LP0_PLANE_LATENCY, |
||
4432 | &ironlake_cursor_wm_info, |
||
4433 | ILK_LP0_CURSOR_LATENCY, |
||
4434 | &plane_wm, &cursor_wm)) { |
||
4435 | I915_WRITE(WM0_PIPEA_ILK, |
||
4436 | (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm); |
||
4437 | DRM_DEBUG_KMS("FIFO watermarks For pipe A -" |
||
4438 | " plane %d, " "cursor: %d\n", |
||
4439 | plane_wm, cursor_wm); |
||
4440 | enabled |= 1; |
||
4441 | } |
||
4442 | |||
4443 | if (g4x_compute_wm0(dev, 1, |
||
4444 | &ironlake_display_wm_info, |
||
4445 | ILK_LP0_PLANE_LATENCY, |
||
4446 | &ironlake_cursor_wm_info, |
||
4447 | ILK_LP0_CURSOR_LATENCY, |
||
4448 | &plane_wm, &cursor_wm)) { |
||
4449 | I915_WRITE(WM0_PIPEB_ILK, |
||
4450 | (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm); |
||
4451 | DRM_DEBUG_KMS("FIFO watermarks For pipe B -" |
||
4452 | " plane %d, cursor: %d\n", |
||
4453 | plane_wm, cursor_wm); |
||
4454 | enabled |= 2; |
||
4455 | } |
||
4456 | |||
4457 | /* |
||
4458 | * Calculate and update the self-refresh watermark only when one |
||
4459 | * display plane is used. |
||
4460 | */ |
||
4461 | I915_WRITE(WM3_LP_ILK, 0); |
||
4462 | I915_WRITE(WM2_LP_ILK, 0); |
||
4463 | I915_WRITE(WM1_LP_ILK, 0); |
||
4464 | |||
4465 | if (!single_plane_enabled(enabled)) |
||
4466 | return; |
||
4467 | enabled = ffs(enabled) - 1; |
||
4468 | |||
4469 | /* WM1 */ |
||
4470 | if (!ironlake_compute_srwm(dev, 1, enabled, |
||
4471 | ILK_READ_WM1_LATENCY() * 500, |
||
4472 | &ironlake_display_srwm_info, |
||
4473 | &ironlake_cursor_srwm_info, |
||
4474 | &fbc_wm, &plane_wm, &cursor_wm)) |
||
4475 | return; |
||
4476 | |||
4477 | I915_WRITE(WM1_LP_ILK, |
||
4478 | WM1_LP_SR_EN | |
||
4479 | (ILK_READ_WM1_LATENCY() << WM1_LP_LATENCY_SHIFT) | |
||
4480 | (fbc_wm << WM1_LP_FBC_SHIFT) | |
||
4481 | (plane_wm << WM1_LP_SR_SHIFT) | |
||
4482 | cursor_wm); |
||
4483 | |||
4484 | /* WM2 */ |
||
4485 | if (!ironlake_compute_srwm(dev, 2, enabled, |
||
4486 | ILK_READ_WM2_LATENCY() * 500, |
||
4487 | &ironlake_display_srwm_info, |
||
4488 | &ironlake_cursor_srwm_info, |
||
4489 | &fbc_wm, &plane_wm, &cursor_wm)) |
||
4490 | return; |
||
4491 | |||
4492 | I915_WRITE(WM2_LP_ILK, |
||
4493 | WM2_LP_EN | |
||
4494 | (ILK_READ_WM2_LATENCY() << WM1_LP_LATENCY_SHIFT) | |
||
4495 | (fbc_wm << WM1_LP_FBC_SHIFT) | |
||
4496 | (plane_wm << WM1_LP_SR_SHIFT) | |
||
4497 | cursor_wm); |
||
4498 | |||
4499 | /* |
||
4500 | * WM3 is unsupported on ILK, probably because we don't have latency |
||
4501 | * data for that power state |
||
4502 | */ |
||
4503 | } |
||
4504 | |||
2342 | Serge | 4505 | void sandybridge_update_wm(struct drm_device *dev) |
2327 | Serge | 4506 | { |
4507 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4508 | int latency = SNB_READ_WM0_LATENCY() * 100; /* In unit 0.1us */ |
||
4509 | int fbc_wm, plane_wm, cursor_wm; |
||
4510 | unsigned int enabled; |
||
4511 | |||
4512 | enabled = 0; |
||
4513 | if (g4x_compute_wm0(dev, 0, |
||
4514 | &sandybridge_display_wm_info, latency, |
||
4515 | &sandybridge_cursor_wm_info, latency, |
||
4516 | &plane_wm, &cursor_wm)) { |
||
4517 | I915_WRITE(WM0_PIPEA_ILK, |
||
4518 | (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm); |
||
4519 | DRM_DEBUG_KMS("FIFO watermarks For pipe A -" |
||
4520 | " plane %d, " "cursor: %d\n", |
||
4521 | plane_wm, cursor_wm); |
||
4522 | enabled |= 1; |
||
4523 | } |
||
4524 | |||
4525 | if (g4x_compute_wm0(dev, 1, |
||
4526 | &sandybridge_display_wm_info, latency, |
||
4527 | &sandybridge_cursor_wm_info, latency, |
||
4528 | &plane_wm, &cursor_wm)) { |
||
4529 | I915_WRITE(WM0_PIPEB_ILK, |
||
4530 | (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm); |
||
4531 | DRM_DEBUG_KMS("FIFO watermarks For pipe B -" |
||
4532 | " plane %d, cursor: %d\n", |
||
4533 | plane_wm, cursor_wm); |
||
4534 | enabled |= 2; |
||
4535 | } |
||
4536 | |||
2342 | Serge | 4537 | /* IVB has 3 pipes */ |
4538 | if (IS_IVYBRIDGE(dev) && |
||
4539 | g4x_compute_wm0(dev, 2, |
||
4540 | &sandybridge_display_wm_info, latency, |
||
4541 | &sandybridge_cursor_wm_info, latency, |
||
4542 | &plane_wm, &cursor_wm)) { |
||
4543 | I915_WRITE(WM0_PIPEC_IVB, |
||
4544 | (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm); |
||
4545 | DRM_DEBUG_KMS("FIFO watermarks For pipe C -" |
||
4546 | " plane %d, cursor: %d\n", |
||
4547 | plane_wm, cursor_wm); |
||
4548 | enabled |= 3; |
||
4549 | } |
||
4550 | |||
2327 | Serge | 4551 | /* |
4552 | * Calculate and update the self-refresh watermark only when one |
||
4553 | * display plane is used. |
||
4554 | * |
||
4555 | * SNB support 3 levels of watermark. |
||
4556 | * |
||
4557 | * WM1/WM2/WM2 watermarks have to be enabled in the ascending order, |
||
4558 | * and disabled in the descending order |
||
4559 | * |
||
4560 | */ |
||
4561 | I915_WRITE(WM3_LP_ILK, 0); |
||
4562 | I915_WRITE(WM2_LP_ILK, 0); |
||
4563 | I915_WRITE(WM1_LP_ILK, 0); |
||
4564 | |||
2342 | Serge | 4565 | if (!single_plane_enabled(enabled) || |
4566 | dev_priv->sprite_scaling_enabled) |
||
2327 | Serge | 4567 | return; |
4568 | enabled = ffs(enabled) - 1; |
||
4569 | |||
4570 | /* WM1 */ |
||
4571 | if (!ironlake_compute_srwm(dev, 1, enabled, |
||
4572 | SNB_READ_WM1_LATENCY() * 500, |
||
4573 | &sandybridge_display_srwm_info, |
||
4574 | &sandybridge_cursor_srwm_info, |
||
4575 | &fbc_wm, &plane_wm, &cursor_wm)) |
||
4576 | return; |
||
4577 | |||
4578 | I915_WRITE(WM1_LP_ILK, |
||
4579 | WM1_LP_SR_EN | |
||
4580 | (SNB_READ_WM1_LATENCY() << WM1_LP_LATENCY_SHIFT) | |
||
4581 | (fbc_wm << WM1_LP_FBC_SHIFT) | |
||
4582 | (plane_wm << WM1_LP_SR_SHIFT) | |
||
4583 | cursor_wm); |
||
4584 | |||
4585 | /* WM2 */ |
||
4586 | if (!ironlake_compute_srwm(dev, 2, enabled, |
||
4587 | SNB_READ_WM2_LATENCY() * 500, |
||
4588 | &sandybridge_display_srwm_info, |
||
4589 | &sandybridge_cursor_srwm_info, |
||
4590 | &fbc_wm, &plane_wm, &cursor_wm)) |
||
4591 | return; |
||
4592 | |||
4593 | I915_WRITE(WM2_LP_ILK, |
||
4594 | WM2_LP_EN | |
||
4595 | (SNB_READ_WM2_LATENCY() << WM1_LP_LATENCY_SHIFT) | |
||
4596 | (fbc_wm << WM1_LP_FBC_SHIFT) | |
||
4597 | (plane_wm << WM1_LP_SR_SHIFT) | |
||
4598 | cursor_wm); |
||
4599 | |||
4600 | /* WM3 */ |
||
4601 | if (!ironlake_compute_srwm(dev, 3, enabled, |
||
4602 | SNB_READ_WM3_LATENCY() * 500, |
||
4603 | &sandybridge_display_srwm_info, |
||
4604 | &sandybridge_cursor_srwm_info, |
||
4605 | &fbc_wm, &plane_wm, &cursor_wm)) |
||
4606 | return; |
||
4607 | |||
4608 | I915_WRITE(WM3_LP_ILK, |
||
4609 | WM3_LP_EN | |
||
4610 | (SNB_READ_WM3_LATENCY() << WM1_LP_LATENCY_SHIFT) | |
||
4611 | (fbc_wm << WM1_LP_FBC_SHIFT) | |
||
4612 | (plane_wm << WM1_LP_SR_SHIFT) | |
||
4613 | cursor_wm); |
||
2342 | Serge | 4614 | } |
2336 | Serge | 4615 | |
2342 | Serge | 4616 | static bool |
4617 | sandybridge_compute_sprite_wm(struct drm_device *dev, int plane, |
||
4618 | uint32_t sprite_width, int pixel_size, |
||
4619 | const struct intel_watermark_params *display, |
||
4620 | int display_latency_ns, int *sprite_wm) |
||
4621 | { |
||
4622 | struct drm_crtc *crtc; |
||
4623 | int clock; |
||
4624 | int entries, tlb_miss; |
||
2336 | Serge | 4625 | |
2342 | Serge | 4626 | crtc = intel_get_crtc_for_plane(dev, plane); |
4627 | if (crtc->fb == NULL || !crtc->enabled) { |
||
4628 | *sprite_wm = display->guard_size; |
||
4629 | return false; |
||
4630 | } |
||
4631 | |||
4632 | clock = crtc->mode.clock; |
||
4633 | |||
4634 | /* Use the small buffer method to calculate the sprite watermark */ |
||
4635 | entries = ((clock * pixel_size / 1000) * display_latency_ns) / 1000; |
||
4636 | tlb_miss = display->fifo_size*display->cacheline_size - |
||
4637 | sprite_width * 8; |
||
4638 | if (tlb_miss > 0) |
||
4639 | entries += tlb_miss; |
||
4640 | entries = DIV_ROUND_UP(entries, display->cacheline_size); |
||
4641 | *sprite_wm = entries + display->guard_size; |
||
4642 | if (*sprite_wm > (int)display->max_wm) |
||
4643 | *sprite_wm = display->max_wm; |
||
4644 | |||
4645 | return true; |
||
2327 | Serge | 4646 | } |
4647 | |||
2342 | Serge | 4648 | static bool |
4649 | sandybridge_compute_sprite_srwm(struct drm_device *dev, int plane, |
||
4650 | uint32_t sprite_width, int pixel_size, |
||
4651 | const struct intel_watermark_params *display, |
||
4652 | int latency_ns, int *sprite_wm) |
||
4653 | { |
||
4654 | struct drm_crtc *crtc; |
||
4655 | unsigned long line_time_us; |
||
4656 | int clock; |
||
4657 | int line_count, line_size; |
||
4658 | int small, large; |
||
4659 | int entries; |
||
4660 | |||
4661 | if (!latency_ns) { |
||
4662 | *sprite_wm = 0; |
||
4663 | return false; |
||
4664 | } |
||
4665 | |||
4666 | crtc = intel_get_crtc_for_plane(dev, plane); |
||
4667 | clock = crtc->mode.clock; |
||
4668 | |||
4669 | line_time_us = (sprite_width * 1000) / clock; |
||
4670 | line_count = (latency_ns / line_time_us + 1000) / 1000; |
||
4671 | line_size = sprite_width * pixel_size; |
||
4672 | |||
4673 | /* Use the minimum of the small and large buffer method for primary */ |
||
4674 | small = ((clock * pixel_size / 1000) * latency_ns) / 1000; |
||
4675 | large = line_count * line_size; |
||
4676 | |||
4677 | entries = DIV_ROUND_UP(min(small, large), display->cacheline_size); |
||
4678 | *sprite_wm = entries + display->guard_size; |
||
4679 | |||
4680 | return *sprite_wm > 0x3ff ? false : true; |
||
4681 | } |
||
4682 | |||
4683 | static void sandybridge_update_sprite_wm(struct drm_device *dev, int pipe, |
||
4684 | uint32_t sprite_width, int pixel_size) |
||
4685 | { |
||
4686 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4687 | int latency = SNB_READ_WM0_LATENCY() * 100; /* In unit 0.1us */ |
||
4688 | int sprite_wm, reg; |
||
4689 | int ret; |
||
4690 | |||
4691 | switch (pipe) { |
||
4692 | case 0: |
||
4693 | reg = WM0_PIPEA_ILK; |
||
4694 | break; |
||
4695 | case 1: |
||
4696 | reg = WM0_PIPEB_ILK; |
||
4697 | break; |
||
4698 | case 2: |
||
4699 | reg = WM0_PIPEC_IVB; |
||
4700 | break; |
||
4701 | default: |
||
4702 | return; /* bad pipe */ |
||
4703 | } |
||
4704 | |||
4705 | ret = sandybridge_compute_sprite_wm(dev, pipe, sprite_width, pixel_size, |
||
4706 | &sandybridge_display_wm_info, |
||
4707 | latency, &sprite_wm); |
||
4708 | if (!ret) { |
||
4709 | DRM_DEBUG_KMS("failed to compute sprite wm for pipe %d\n", |
||
4710 | pipe); |
||
4711 | return; |
||
4712 | } |
||
4713 | |||
4714 | I915_WRITE(reg, I915_READ(reg) | (sprite_wm << WM0_PIPE_SPRITE_SHIFT)); |
||
4715 | DRM_DEBUG_KMS("sprite watermarks For pipe %d - %d\n", pipe, sprite_wm); |
||
4716 | |||
4717 | |||
4718 | ret = sandybridge_compute_sprite_srwm(dev, pipe, sprite_width, |
||
4719 | pixel_size, |
||
4720 | &sandybridge_display_srwm_info, |
||
4721 | SNB_READ_WM1_LATENCY() * 500, |
||
4722 | &sprite_wm); |
||
4723 | if (!ret) { |
||
4724 | DRM_DEBUG_KMS("failed to compute sprite lp1 wm on pipe %d\n", |
||
4725 | pipe); |
||
4726 | return; |
||
4727 | } |
||
4728 | I915_WRITE(WM1S_LP_ILK, sprite_wm); |
||
4729 | |||
4730 | /* Only IVB has two more LP watermarks for sprite */ |
||
4731 | if (!IS_IVYBRIDGE(dev)) |
||
4732 | return; |
||
4733 | |||
4734 | ret = sandybridge_compute_sprite_srwm(dev, pipe, sprite_width, |
||
4735 | pixel_size, |
||
4736 | &sandybridge_display_srwm_info, |
||
4737 | SNB_READ_WM2_LATENCY() * 500, |
||
4738 | &sprite_wm); |
||
4739 | if (!ret) { |
||
4740 | DRM_DEBUG_KMS("failed to compute sprite lp2 wm on pipe %d\n", |
||
4741 | pipe); |
||
4742 | return; |
||
4743 | } |
||
4744 | I915_WRITE(WM2S_LP_IVB, sprite_wm); |
||
4745 | |||
4746 | ret = sandybridge_compute_sprite_srwm(dev, pipe, sprite_width, |
||
4747 | pixel_size, |
||
4748 | &sandybridge_display_srwm_info, |
||
4749 | SNB_READ_WM3_LATENCY() * 500, |
||
4750 | &sprite_wm); |
||
4751 | if (!ret) { |
||
4752 | DRM_DEBUG_KMS("failed to compute sprite lp3 wm on pipe %d\n", |
||
4753 | pipe); |
||
4754 | return; |
||
4755 | } |
||
4756 | I915_WRITE(WM3S_LP_IVB, sprite_wm); |
||
4757 | } |
||
4758 | |||
2327 | Serge | 4759 | /** |
4760 | * intel_update_watermarks - update FIFO watermark values based on current modes |
||
4761 | * |
||
4762 | * Calculate watermark values for the various WM regs based on current mode |
||
4763 | * and plane configuration. |
||
4764 | * |
||
4765 | * There are several cases to deal with here: |
||
4766 | * - normal (i.e. non-self-refresh) |
||
4767 | * - self-refresh (SR) mode |
||
4768 | * - lines are large relative to FIFO size (buffer can hold up to 2) |
||
4769 | * - lines are small relative to FIFO size (buffer can hold more than 2 |
||
4770 | * lines), so need to account for TLB latency |
||
4771 | * |
||
4772 | * The normal calculation is: |
||
4773 | * watermark = dotclock * bytes per pixel * latency |
||
4774 | * where latency is platform & configuration dependent (we assume pessimal |
||
4775 | * values here). |
||
4776 | * |
||
4777 | * The SR calculation is: |
||
4778 | * watermark = (trunc(latency/line time)+1) * surface width * |
||
4779 | * bytes per pixel |
||
4780 | * where |
||
4781 | * line time = htotal / dotclock |
||
4782 | * surface width = hdisplay for normal plane and 64 for cursor |
||
4783 | * and latency is assumed to be high, as above. |
||
4784 | * |
||
4785 | * The final value programmed to the register should always be rounded up, |
||
4786 | * and include an extra 2 entries to account for clock crossings. |
||
4787 | * |
||
4788 | * We don't use the sprite, so we can ignore that. And on Crestline we have |
||
4789 | * to set the non-SR watermarks to 8. |
||
4790 | */ |
||
4791 | static void intel_update_watermarks(struct drm_device *dev) |
||
4792 | { |
||
4793 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2351 | Serge | 4794 | |
2327 | Serge | 4795 | if (dev_priv->display.update_wm) |
4796 | dev_priv->display.update_wm(dev); |
||
4797 | } |
||
4798 | |||
2342 | Serge | 4799 | void intel_update_sprite_watermarks(struct drm_device *dev, int pipe, |
4800 | uint32_t sprite_width, int pixel_size) |
||
4801 | { |
||
4802 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4803 | |||
4804 | if (dev_priv->display.update_sprite_wm) |
||
4805 | dev_priv->display.update_sprite_wm(dev, pipe, sprite_width, |
||
4806 | pixel_size); |
||
4807 | } |
||
4808 | |||
2327 | Serge | 4809 | static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) |
4810 | { |
||
2342 | Serge | 4811 | if (i915_panel_use_ssc >= 0) |
4812 | return i915_panel_use_ssc != 0; |
||
4813 | return dev_priv->lvds_use_ssc |
||
2327 | Serge | 4814 | && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE); |
4815 | } |
||
4816 | |||
4817 | /** |
||
4818 | * intel_choose_pipe_bpp_dither - figure out what color depth the pipe should send |
||
4819 | * @crtc: CRTC structure |
||
2342 | Serge | 4820 | * @mode: requested mode |
2327 | Serge | 4821 | * |
4822 | * A pipe may be connected to one or more outputs. Based on the depth of the |
||
4823 | * attached framebuffer, choose a good color depth to use on the pipe. |
||
4824 | * |
||
4825 | * If possible, match the pipe depth to the fb depth. In some cases, this |
||
4826 | * isn't ideal, because the connected output supports a lesser or restricted |
||
4827 | * set of depths. Resolve that here: |
||
4828 | * LVDS typically supports only 6bpc, so clamp down in that case |
||
4829 | * HDMI supports only 8bpc or 12bpc, so clamp to 8bpc with dither for 10bpc |
||
4830 | * Displays may support a restricted set as well, check EDID and clamp as |
||
4831 | * appropriate. |
||
2342 | Serge | 4832 | * DP may want to dither down to 6bpc to fit larger modes |
2327 | Serge | 4833 | * |
4834 | * RETURNS: |
||
4835 | * Dithering requirement (i.e. false if display bpc and pipe bpc match, |
||
4836 | * true if they don't match). |
||
4837 | */ |
||
4838 | static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc, |
||
2342 | Serge | 4839 | unsigned int *pipe_bpp, |
4840 | struct drm_display_mode *mode) |
||
2327 | Serge | 4841 | { |
4842 | struct drm_device *dev = crtc->dev; |
||
4843 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4844 | struct drm_encoder *encoder; |
||
4845 | struct drm_connector *connector; |
||
4846 | unsigned int display_bpc = UINT_MAX, bpc; |
||
4847 | |||
4848 | /* Walk the encoders & connectors on this crtc, get min bpc */ |
||
4849 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
||
4850 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); |
||
4851 | |||
4852 | if (encoder->crtc != crtc) |
||
4853 | continue; |
||
4854 | |||
4855 | if (intel_encoder->type == INTEL_OUTPUT_LVDS) { |
||
4856 | unsigned int lvds_bpc; |
||
4857 | |||
4858 | if ((I915_READ(PCH_LVDS) & LVDS_A3_POWER_MASK) == |
||
4859 | LVDS_A3_POWER_UP) |
||
4860 | lvds_bpc = 8; |
||
4861 | else |
||
4862 | lvds_bpc = 6; |
||
4863 | |||
4864 | if (lvds_bpc < display_bpc) { |
||
2342 | Serge | 4865 | DRM_DEBUG_KMS("clamping display bpc (was %d) to LVDS (%d)\n", display_bpc, lvds_bpc); |
2327 | Serge | 4866 | display_bpc = lvds_bpc; |
4867 | } |
||
4868 | continue; |
||
4869 | } |
||
4870 | |||
4871 | if (intel_encoder->type == INTEL_OUTPUT_EDP) { |
||
4872 | /* Use VBT settings if we have an eDP panel */ |
||
4873 | unsigned int edp_bpc = dev_priv->edp.bpp / 3; |
||
4874 | |||
4875 | if (edp_bpc < display_bpc) { |
||
2342 | Serge | 4876 | DRM_DEBUG_KMS("clamping display bpc (was %d) to eDP (%d)\n", display_bpc, edp_bpc); |
2327 | Serge | 4877 | display_bpc = edp_bpc; |
4878 | } |
||
4879 | continue; |
||
4880 | } |
||
4881 | |||
4882 | /* Not one of the known troublemakers, check the EDID */ |
||
4883 | list_for_each_entry(connector, &dev->mode_config.connector_list, |
||
4884 | head) { |
||
4885 | if (connector->encoder != encoder) |
||
4886 | continue; |
||
4887 | |||
4888 | /* Don't use an invalid EDID bpc value */ |
||
4889 | if (connector->display_info.bpc && |
||
4890 | connector->display_info.bpc < display_bpc) { |
||
2342 | Serge | 4891 | DRM_DEBUG_KMS("clamping display bpc (was %d) to EDID reported max of %d\n", display_bpc, connector->display_info.bpc); |
2327 | Serge | 4892 | display_bpc = connector->display_info.bpc; |
4893 | } |
||
4894 | } |
||
4895 | |||
4896 | /* |
||
4897 | * HDMI is either 12 or 8, so if the display lets 10bpc sneak |
||
4898 | * through, clamp it down. (Note: >12bpc will be caught below.) |
||
4899 | */ |
||
4900 | if (intel_encoder->type == INTEL_OUTPUT_HDMI) { |
||
4901 | if (display_bpc > 8 && display_bpc < 12) { |
||
2342 | Serge | 4902 | DRM_DEBUG_KMS("forcing bpc to 12 for HDMI\n"); |
2327 | Serge | 4903 | display_bpc = 12; |
4904 | } else { |
||
2342 | Serge | 4905 | DRM_DEBUG_KMS("forcing bpc to 8 for HDMI\n"); |
2327 | Serge | 4906 | display_bpc = 8; |
4907 | } |
||
4908 | } |
||
4909 | } |
||
4910 | |||
2342 | Serge | 4911 | if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) { |
4912 | DRM_DEBUG_KMS("Dithering DP to 6bpc\n"); |
||
4913 | display_bpc = 6; |
||
4914 | } |
||
4915 | |||
2327 | Serge | 4916 | /* |
4917 | * We could just drive the pipe at the highest bpc all the time and |
||
4918 | * enable dithering as needed, but that costs bandwidth. So choose |
||
4919 | * the minimum value that expresses the full color range of the fb but |
||
4920 | * also stays within the max display bpc discovered above. |
||
4921 | */ |
||
4922 | |||
4923 | switch (crtc->fb->depth) { |
||
4924 | case 8: |
||
4925 | bpc = 8; /* since we go through a colormap */ |
||
4926 | break; |
||
4927 | case 15: |
||
4928 | case 16: |
||
4929 | bpc = 6; /* min is 18bpp */ |
||
4930 | break; |
||
4931 | case 24: |
||
2342 | Serge | 4932 | bpc = 8; |
2327 | Serge | 4933 | break; |
4934 | case 30: |
||
2342 | Serge | 4935 | bpc = 10; |
2327 | Serge | 4936 | break; |
4937 | case 48: |
||
2342 | Serge | 4938 | bpc = 12; |
2327 | Serge | 4939 | break; |
4940 | default: |
||
4941 | DRM_DEBUG("unsupported depth, assuming 24 bits\n"); |
||
4942 | bpc = min((unsigned int)8, display_bpc); |
||
4943 | break; |
||
4944 | } |
||
4945 | |||
2342 | Serge | 4946 | display_bpc = min(display_bpc, bpc); |
4947 | |||
4948 | DRM_DEBUG_KMS("setting pipe bpc to %d (max display bpc %d)\n", |
||
2327 | Serge | 4949 | bpc, display_bpc); |
4950 | |||
2342 | Serge | 4951 | *pipe_bpp = display_bpc * 3; |
2327 | Serge | 4952 | |
4953 | return display_bpc != bpc; |
||
4954 | } |
||
4955 | |||
4956 | static int i9xx_crtc_mode_set(struct drm_crtc *crtc, |
||
4957 | struct drm_display_mode *mode, |
||
4958 | struct drm_display_mode *adjusted_mode, |
||
4959 | int x, int y, |
||
4960 | struct drm_framebuffer *old_fb) |
||
4961 | { |
||
4962 | struct drm_device *dev = crtc->dev; |
||
4963 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
4964 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
4965 | int pipe = intel_crtc->pipe; |
||
4966 | int plane = intel_crtc->plane; |
||
4967 | int refclk, num_connectors = 0; |
||
4968 | intel_clock_t clock, reduced_clock; |
||
4969 | u32 dpll, fp = 0, fp2 = 0, dspcntr, pipeconf; |
||
4970 | bool ok, has_reduced_clock = false, is_sdvo = false, is_dvo = false; |
||
4971 | bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false; |
||
4972 | struct drm_mode_config *mode_config = &dev->mode_config; |
||
4973 | struct intel_encoder *encoder; |
||
4974 | const intel_limit_t *limit; |
||
4975 | int ret; |
||
4976 | u32 temp; |
||
4977 | u32 lvds_sync = 0; |
||
4978 | |||
4979 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) { |
||
4980 | if (encoder->base.crtc != crtc) |
||
4981 | continue; |
||
4982 | |||
4983 | switch (encoder->type) { |
||
4984 | case INTEL_OUTPUT_LVDS: |
||
4985 | is_lvds = true; |
||
4986 | break; |
||
4987 | case INTEL_OUTPUT_SDVO: |
||
4988 | case INTEL_OUTPUT_HDMI: |
||
4989 | is_sdvo = true; |
||
4990 | if (encoder->needs_tv_clock) |
||
4991 | is_tv = true; |
||
4992 | break; |
||
4993 | case INTEL_OUTPUT_DVO: |
||
4994 | is_dvo = true; |
||
4995 | break; |
||
4996 | case INTEL_OUTPUT_TVOUT: |
||
4997 | is_tv = true; |
||
4998 | break; |
||
4999 | case INTEL_OUTPUT_ANALOG: |
||
5000 | is_crt = true; |
||
5001 | break; |
||
5002 | case INTEL_OUTPUT_DISPLAYPORT: |
||
5003 | is_dp = true; |
||
5004 | break; |
||
5005 | } |
||
5006 | |||
5007 | num_connectors++; |
||
5008 | } |
||
5009 | |||
5010 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) { |
||
5011 | refclk = dev_priv->lvds_ssc_freq * 1000; |
||
5012 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", |
||
5013 | refclk / 1000); |
||
5014 | } else if (!IS_GEN2(dev)) { |
||
5015 | refclk = 96000; |
||
5016 | } else { |
||
5017 | refclk = 48000; |
||
5018 | } |
||
5019 | |||
5020 | /* |
||
5021 | * Returns a set of divisors for the desired target clock with the given |
||
5022 | * refclk, or FALSE. The returned values represent the clock equation: |
||
5023 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. |
||
5024 | */ |
||
5025 | limit = intel_limit(crtc, refclk); |
||
5026 | ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, &clock); |
||
5027 | if (!ok) { |
||
5028 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); |
||
5029 | return -EINVAL; |
||
5030 | } |
||
5031 | |||
5032 | /* Ensure that the cursor is valid for the new mode before changing... */ |
||
5033 | // intel_crtc_update_cursor(crtc, true); |
||
5034 | |||
5035 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
||
5036 | has_reduced_clock = limit->find_pll(limit, crtc, |
||
5037 | dev_priv->lvds_downclock, |
||
5038 | refclk, |
||
5039 | &reduced_clock); |
||
5040 | if (has_reduced_clock && (clock.p != reduced_clock.p)) { |
||
5041 | /* |
||
5042 | * If the different P is found, it means that we can't |
||
5043 | * switch the display clock by using the FP0/FP1. |
||
5044 | * In such case we will disable the LVDS downclock |
||
5045 | * feature. |
||
5046 | */ |
||
5047 | DRM_DEBUG_KMS("Different P is found for " |
||
5048 | "LVDS clock/downclock\n"); |
||
5049 | has_reduced_clock = 0; |
||
5050 | } |
||
5051 | } |
||
5052 | /* SDVO TV has fixed PLL values depend on its clock range, |
||
5053 | this mirrors vbios setting. */ |
||
5054 | if (is_sdvo && is_tv) { |
||
5055 | if (adjusted_mode->clock >= 100000 |
||
5056 | && adjusted_mode->clock < 140500) { |
||
5057 | clock.p1 = 2; |
||
5058 | clock.p2 = 10; |
||
5059 | clock.n = 3; |
||
5060 | clock.m1 = 16; |
||
5061 | clock.m2 = 8; |
||
5062 | } else if (adjusted_mode->clock >= 140500 |
||
5063 | && adjusted_mode->clock <= 200000) { |
||
5064 | clock.p1 = 1; |
||
5065 | clock.p2 = 10; |
||
5066 | clock.n = 6; |
||
5067 | clock.m1 = 12; |
||
5068 | clock.m2 = 8; |
||
5069 | } |
||
5070 | } |
||
5071 | |||
5072 | if (IS_PINEVIEW(dev)) { |
||
5073 | fp = (1 << clock.n) << 16 | clock.m1 << 8 | clock.m2; |
||
5074 | if (has_reduced_clock) |
||
5075 | fp2 = (1 << reduced_clock.n) << 16 | |
||
5076 | reduced_clock.m1 << 8 | reduced_clock.m2; |
||
5077 | } else { |
||
5078 | fp = clock.n << 16 | clock.m1 << 8 | clock.m2; |
||
5079 | if (has_reduced_clock) |
||
5080 | fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 | |
||
5081 | reduced_clock.m2; |
||
5082 | } |
||
5083 | |||
5084 | dpll = DPLL_VGA_MODE_DIS; |
||
5085 | |||
5086 | if (!IS_GEN2(dev)) { |
||
5087 | if (is_lvds) |
||
5088 | dpll |= DPLLB_MODE_LVDS; |
||
5089 | else |
||
5090 | dpll |= DPLLB_MODE_DAC_SERIAL; |
||
5091 | if (is_sdvo) { |
||
5092 | int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); |
||
5093 | if (pixel_multiplier > 1) { |
||
5094 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) |
||
5095 | dpll |= (pixel_multiplier - 1) << SDVO_MULTIPLIER_SHIFT_HIRES; |
||
5096 | } |
||
5097 | dpll |= DPLL_DVO_HIGH_SPEED; |
||
5098 | } |
||
5099 | if (is_dp) |
||
5100 | dpll |= DPLL_DVO_HIGH_SPEED; |
||
5101 | |||
5102 | /* compute bitmask from p1 value */ |
||
5103 | if (IS_PINEVIEW(dev)) |
||
5104 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW; |
||
5105 | else { |
||
5106 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
||
5107 | if (IS_G4X(dev) && has_reduced_clock) |
||
5108 | dpll |= (1 << (reduced_clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; |
||
5109 | } |
||
5110 | switch (clock.p2) { |
||
5111 | case 5: |
||
5112 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; |
||
5113 | break; |
||
5114 | case 7: |
||
5115 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; |
||
5116 | break; |
||
5117 | case 10: |
||
5118 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; |
||
5119 | break; |
||
5120 | case 14: |
||
5121 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; |
||
5122 | break; |
||
5123 | } |
||
5124 | if (INTEL_INFO(dev)->gen >= 4) |
||
5125 | dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT); |
||
5126 | } else { |
||
5127 | if (is_lvds) { |
||
5128 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
||
5129 | } else { |
||
5130 | if (clock.p1 == 2) |
||
5131 | dpll |= PLL_P1_DIVIDE_BY_TWO; |
||
5132 | else |
||
5133 | dpll |= (clock.p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
||
5134 | if (clock.p2 == 4) |
||
5135 | dpll |= PLL_P2_DIVIDE_BY_4; |
||
5136 | } |
||
5137 | } |
||
5138 | |||
5139 | if (is_sdvo && is_tv) |
||
5140 | dpll |= PLL_REF_INPUT_TVCLKINBC; |
||
5141 | else if (is_tv) |
||
5142 | /* XXX: just matching BIOS for now */ |
||
5143 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ |
||
5144 | dpll |= 3; |
||
5145 | else if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
||
5146 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
||
5147 | else |
||
5148 | dpll |= PLL_REF_INPUT_DREFCLK; |
||
5149 | |||
5150 | /* setup pipeconf */ |
||
5151 | pipeconf = I915_READ(PIPECONF(pipe)); |
||
5152 | |||
5153 | /* Set up the display plane register */ |
||
5154 | dspcntr = DISPPLANE_GAMMA_ENABLE; |
||
5155 | |||
5156 | /* Ironlake's plane is forced to pipe, bit 24 is to |
||
5157 | enable color space conversion */ |
||
5158 | if (pipe == 0) |
||
5159 | dspcntr &= ~DISPPLANE_SEL_PIPE_MASK; |
||
5160 | else |
||
5161 | dspcntr |= DISPPLANE_SEL_PIPE_B; |
||
5162 | |||
5163 | if (pipe == 0 && INTEL_INFO(dev)->gen < 4) { |
||
5164 | /* Enable pixel doubling when the dot clock is > 90% of the (display) |
||
5165 | * core speed. |
||
5166 | * |
||
5167 | * XXX: No double-wide on 915GM pipe B. Is that the only reason for the |
||
5168 | * pipe == 0 check? |
||
5169 | */ |
||
5170 | if (mode->clock > |
||
5171 | dev_priv->display.get_display_clock_speed(dev) * 9 / 10) |
||
5172 | pipeconf |= PIPECONF_DOUBLE_WIDE; |
||
5173 | else |
||
5174 | pipeconf &= ~PIPECONF_DOUBLE_WIDE; |
||
5175 | } |
||
5176 | |||
2342 | Serge | 5177 | /* default to 8bpc */ |
5178 | pipeconf &= ~(PIPECONF_BPP_MASK | PIPECONF_DITHER_EN); |
||
5179 | if (is_dp) { |
||
5180 | if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) { |
||
5181 | pipeconf |= PIPECONF_BPP_6 | |
||
5182 | PIPECONF_DITHER_EN | |
||
5183 | PIPECONF_DITHER_TYPE_SP; |
||
5184 | } |
||
5185 | } |
||
5186 | |||
2327 | Serge | 5187 | dpll |= DPLL_VCO_ENABLE; |
5188 | |||
5189 | DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B'); |
||
5190 | drm_mode_debug_printmodeline(mode); |
||
5191 | |||
5192 | I915_WRITE(FP0(pipe), fp); |
||
5193 | I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); |
||
5194 | |||
5195 | POSTING_READ(DPLL(pipe)); |
||
5196 | udelay(150); |
||
5197 | |||
5198 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. |
||
5199 | * This is an exception to the general rule that mode_set doesn't turn |
||
5200 | * things on. |
||
5201 | */ |
||
5202 | if (is_lvds) { |
||
5203 | temp = I915_READ(LVDS); |
||
5204 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; |
||
5205 | if (pipe == 1) { |
||
5206 | temp |= LVDS_PIPEB_SELECT; |
||
5207 | } else { |
||
5208 | temp &= ~LVDS_PIPEB_SELECT; |
||
5209 | } |
||
5210 | /* set the corresponsding LVDS_BORDER bit */ |
||
5211 | temp |= dev_priv->lvds_border_bits; |
||
5212 | /* Set the B0-B3 data pairs corresponding to whether we're going to |
||
5213 | * set the DPLLs for dual-channel mode or not. |
||
5214 | */ |
||
5215 | if (clock.p2 == 7) |
||
5216 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; |
||
5217 | else |
||
5218 | temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); |
||
5219 | |||
5220 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) |
||
5221 | * appropriately here, but we need to look more thoroughly into how |
||
5222 | * panels behave in the two modes. |
||
5223 | */ |
||
5224 | /* set the dithering flag on LVDS as needed */ |
||
5225 | if (INTEL_INFO(dev)->gen >= 4) { |
||
5226 | if (dev_priv->lvds_dither) |
||
5227 | temp |= LVDS_ENABLE_DITHER; |
||
5228 | else |
||
5229 | temp &= ~LVDS_ENABLE_DITHER; |
||
5230 | } |
||
5231 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) |
||
5232 | lvds_sync |= LVDS_HSYNC_POLARITY; |
||
5233 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) |
||
5234 | lvds_sync |= LVDS_VSYNC_POLARITY; |
||
5235 | if ((temp & (LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY)) |
||
5236 | != lvds_sync) { |
||
5237 | char flags[2] = "-+"; |
||
5238 | DRM_INFO("Changing LVDS panel from " |
||
5239 | "(%chsync, %cvsync) to (%chsync, %cvsync)\n", |
||
5240 | flags[!(temp & LVDS_HSYNC_POLARITY)], |
||
5241 | flags[!(temp & LVDS_VSYNC_POLARITY)], |
||
5242 | flags[!(lvds_sync & LVDS_HSYNC_POLARITY)], |
||
5243 | flags[!(lvds_sync & LVDS_VSYNC_POLARITY)]); |
||
5244 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); |
||
5245 | temp |= lvds_sync; |
||
5246 | } |
||
5247 | I915_WRITE(LVDS, temp); |
||
5248 | } |
||
5249 | |||
5250 | if (is_dp) { |
||
5251 | intel_dp_set_m_n(crtc, mode, adjusted_mode); |
||
5252 | } |
||
5253 | |||
5254 | I915_WRITE(DPLL(pipe), dpll); |
||
5255 | |||
5256 | /* Wait for the clocks to stabilize. */ |
||
5257 | POSTING_READ(DPLL(pipe)); |
||
5258 | udelay(150); |
||
5259 | |||
5260 | if (INTEL_INFO(dev)->gen >= 4) { |
||
5261 | temp = 0; |
||
5262 | if (is_sdvo) { |
||
5263 | temp = intel_mode_get_pixel_multiplier(adjusted_mode); |
||
5264 | if (temp > 1) |
||
5265 | temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; |
||
5266 | else |
||
5267 | temp = 0; |
||
5268 | } |
||
5269 | I915_WRITE(DPLL_MD(pipe), temp); |
||
5270 | } else { |
||
5271 | /* The pixel multiplier can only be updated once the |
||
5272 | * DPLL is enabled and the clocks are stable. |
||
5273 | * |
||
5274 | * So write it again. |
||
5275 | */ |
||
5276 | I915_WRITE(DPLL(pipe), dpll); |
||
5277 | } |
||
5278 | |||
5279 | intel_crtc->lowfreq_avail = false; |
||
5280 | if (is_lvds && has_reduced_clock && i915_powersave) { |
||
5281 | I915_WRITE(FP1(pipe), fp2); |
||
5282 | intel_crtc->lowfreq_avail = true; |
||
5283 | if (HAS_PIPE_CXSR(dev)) { |
||
5284 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); |
||
5285 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; |
||
5286 | } |
||
5287 | } else { |
||
5288 | I915_WRITE(FP1(pipe), fp); |
||
5289 | if (HAS_PIPE_CXSR(dev)) { |
||
5290 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); |
||
5291 | pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK; |
||
5292 | } |
||
5293 | } |
||
5294 | |||
5295 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { |
||
5296 | pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; |
||
5297 | /* the chip adds 2 halflines automatically */ |
||
5298 | adjusted_mode->crtc_vdisplay -= 1; |
||
5299 | adjusted_mode->crtc_vtotal -= 1; |
||
5300 | adjusted_mode->crtc_vblank_start -= 1; |
||
5301 | adjusted_mode->crtc_vblank_end -= 1; |
||
5302 | adjusted_mode->crtc_vsync_end -= 1; |
||
5303 | adjusted_mode->crtc_vsync_start -= 1; |
||
5304 | } else |
||
2342 | Serge | 5305 | pipeconf &= ~PIPECONF_INTERLACE_MASK; /* progressive */ |
2327 | Serge | 5306 | |
5307 | I915_WRITE(HTOTAL(pipe), |
||
5308 | (adjusted_mode->crtc_hdisplay - 1) | |
||
5309 | ((adjusted_mode->crtc_htotal - 1) << 16)); |
||
5310 | I915_WRITE(HBLANK(pipe), |
||
5311 | (adjusted_mode->crtc_hblank_start - 1) | |
||
5312 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); |
||
5313 | I915_WRITE(HSYNC(pipe), |
||
5314 | (adjusted_mode->crtc_hsync_start - 1) | |
||
5315 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); |
||
5316 | |||
5317 | I915_WRITE(VTOTAL(pipe), |
||
5318 | (adjusted_mode->crtc_vdisplay - 1) | |
||
5319 | ((adjusted_mode->crtc_vtotal - 1) << 16)); |
||
5320 | I915_WRITE(VBLANK(pipe), |
||
5321 | (adjusted_mode->crtc_vblank_start - 1) | |
||
5322 | ((adjusted_mode->crtc_vblank_end - 1) << 16)); |
||
5323 | I915_WRITE(VSYNC(pipe), |
||
5324 | (adjusted_mode->crtc_vsync_start - 1) | |
||
5325 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); |
||
5326 | |||
5327 | /* pipesrc and dspsize control the size that is scaled from, |
||
5328 | * which should always be the user's requested size. |
||
5329 | */ |
||
5330 | I915_WRITE(DSPSIZE(plane), |
||
5331 | ((mode->vdisplay - 1) << 16) | |
||
5332 | (mode->hdisplay - 1)); |
||
5333 | I915_WRITE(DSPPOS(plane), 0); |
||
5334 | I915_WRITE(PIPESRC(pipe), |
||
5335 | ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); |
||
5336 | |||
5337 | I915_WRITE(PIPECONF(pipe), pipeconf); |
||
5338 | POSTING_READ(PIPECONF(pipe)); |
||
5339 | intel_enable_pipe(dev_priv, pipe, false); |
||
5340 | |||
5341 | intel_wait_for_vblank(dev, pipe); |
||
5342 | |||
5343 | I915_WRITE(DSPCNTR(plane), dspcntr); |
||
5344 | POSTING_READ(DSPCNTR(plane)); |
||
5345 | intel_enable_plane(dev_priv, plane, pipe); |
||
5346 | |||
5347 | ret = intel_pipe_set_base(crtc, x, y, old_fb); |
||
5348 | |||
5349 | intel_update_watermarks(dev); |
||
5350 | |||
5351 | return ret; |
||
5352 | } |
||
5353 | |||
2342 | Serge | 5354 | /* |
5355 | * Initialize reference clocks when the driver loads |
||
5356 | */ |
||
5357 | void ironlake_init_pch_refclk(struct drm_device *dev) |
||
2327 | Serge | 5358 | { |
5359 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
5360 | struct drm_mode_config *mode_config = &dev->mode_config; |
||
5361 | struct intel_encoder *encoder; |
||
5362 | u32 temp; |
||
5363 | bool has_lvds = false; |
||
2342 | Serge | 5364 | bool has_cpu_edp = false; |
5365 | bool has_pch_edp = false; |
||
5366 | bool has_panel = false; |
||
5367 | bool has_ck505 = false; |
||
5368 | bool can_ssc = false; |
||
2327 | Serge | 5369 | |
5370 | /* We need to take the global config into account */ |
||
5371 | list_for_each_entry(encoder, &mode_config->encoder_list, |
||
5372 | base.head) { |
||
5373 | switch (encoder->type) { |
||
5374 | case INTEL_OUTPUT_LVDS: |
||
2342 | Serge | 5375 | has_panel = true; |
2327 | Serge | 5376 | has_lvds = true; |
2342 | Serge | 5377 | break; |
2327 | Serge | 5378 | case INTEL_OUTPUT_EDP: |
2342 | Serge | 5379 | has_panel = true; |
5380 | if (intel_encoder_is_pch_edp(&encoder->base)) |
||
5381 | has_pch_edp = true; |
||
5382 | else |
||
5383 | has_cpu_edp = true; |
||
2327 | Serge | 5384 | break; |
5385 | } |
||
5386 | } |
||
2342 | Serge | 5387 | |
5388 | if (HAS_PCH_IBX(dev)) { |
||
5389 | has_ck505 = dev_priv->display_clock_mode; |
||
5390 | can_ssc = has_ck505; |
||
5391 | } else { |
||
5392 | has_ck505 = false; |
||
5393 | can_ssc = true; |
||
2327 | Serge | 5394 | } |
5395 | |||
2342 | Serge | 5396 | DRM_DEBUG_KMS("has_panel %d has_lvds %d has_pch_edp %d has_cpu_edp %d has_ck505 %d\n", |
5397 | has_panel, has_lvds, has_pch_edp, has_cpu_edp, |
||
5398 | has_ck505); |
||
5399 | |||
2327 | Serge | 5400 | /* Ironlake: try to setup display ref clock before DPLL |
5401 | * enabling. This is only under driver's control after |
||
5402 | * PCH B stepping, previous chipset stepping should be |
||
5403 | * ignoring this setting. |
||
5404 | */ |
||
5405 | temp = I915_READ(PCH_DREF_CONTROL); |
||
5406 | /* Always enable nonspread source */ |
||
5407 | temp &= ~DREF_NONSPREAD_SOURCE_MASK; |
||
2342 | Serge | 5408 | |
5409 | if (has_ck505) |
||
5410 | temp |= DREF_NONSPREAD_CK505_ENABLE; |
||
5411 | else |
||
2327 | Serge | 5412 | temp |= DREF_NONSPREAD_SOURCE_ENABLE; |
2342 | Serge | 5413 | |
5414 | if (has_panel) { |
||
2327 | Serge | 5415 | temp &= ~DREF_SSC_SOURCE_MASK; |
5416 | temp |= DREF_SSC_SOURCE_ENABLE; |
||
5417 | |||
2342 | Serge | 5418 | /* SSC must be turned on before enabling the CPU output */ |
5419 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
||
5420 | DRM_DEBUG_KMS("Using SSC on panel\n"); |
||
5421 | temp |= DREF_SSC1_ENABLE; |
||
5422 | } |
||
2327 | Serge | 5423 | |
2342 | Serge | 5424 | /* Get SSC going before enabling the outputs */ |
2327 | Serge | 5425 | I915_WRITE(PCH_DREF_CONTROL, temp); |
5426 | POSTING_READ(PCH_DREF_CONTROL); |
||
5427 | udelay(200); |
||
2342 | Serge | 5428 | |
2327 | Serge | 5429 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
5430 | |||
5431 | /* Enable CPU source on CPU attached eDP */ |
||
2342 | Serge | 5432 | if (has_cpu_edp) { |
5433 | if (intel_panel_use_ssc(dev_priv) && can_ssc) { |
||
5434 | DRM_DEBUG_KMS("Using SSC on eDP\n"); |
||
2327 | Serge | 5435 | temp |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; |
2342 | Serge | 5436 | } |
2327 | Serge | 5437 | else |
5438 | temp |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; |
||
2342 | Serge | 5439 | } else |
5440 | temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE; |
||
5441 | |||
5442 | I915_WRITE(PCH_DREF_CONTROL, temp); |
||
5443 | POSTING_READ(PCH_DREF_CONTROL); |
||
5444 | udelay(200); |
||
2327 | Serge | 5445 | } else { |
2342 | Serge | 5446 | DRM_DEBUG_KMS("Disabling SSC entirely\n"); |
5447 | |||
5448 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
||
5449 | |||
5450 | /* Turn off CPU output */ |
||
5451 | temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE; |
||
5452 | |||
2327 | Serge | 5453 | I915_WRITE(PCH_DREF_CONTROL, temp); |
5454 | POSTING_READ(PCH_DREF_CONTROL); |
||
5455 | udelay(200); |
||
2342 | Serge | 5456 | |
5457 | /* Turn off the SSC source */ |
||
5458 | temp &= ~DREF_SSC_SOURCE_MASK; |
||
5459 | temp |= DREF_SSC_SOURCE_DISABLE; |
||
5460 | |||
5461 | /* Turn off SSC1 */ |
||
5462 | temp &= ~ DREF_SSC1_ENABLE; |
||
5463 | |||
5464 | I915_WRITE(PCH_DREF_CONTROL, temp); |
||
5465 | POSTING_READ(PCH_DREF_CONTROL); |
||
5466 | udelay(200); |
||
2327 | Serge | 5467 | } |
5468 | } |
||
5469 | |||
2342 | Serge | 5470 | static int ironlake_get_refclk(struct drm_crtc *crtc) |
5471 | { |
||
5472 | struct drm_device *dev = crtc->dev; |
||
5473 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
5474 | struct intel_encoder *encoder; |
||
5475 | struct drm_mode_config *mode_config = &dev->mode_config; |
||
5476 | struct intel_encoder *edp_encoder = NULL; |
||
5477 | int num_connectors = 0; |
||
5478 | bool is_lvds = false; |
||
5479 | |||
5480 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) { |
||
5481 | if (encoder->base.crtc != crtc) |
||
5482 | continue; |
||
5483 | |||
5484 | switch (encoder->type) { |
||
5485 | case INTEL_OUTPUT_LVDS: |
||
5486 | is_lvds = true; |
||
5487 | break; |
||
5488 | case INTEL_OUTPUT_EDP: |
||
5489 | edp_encoder = encoder; |
||
5490 | break; |
||
5491 | } |
||
5492 | num_connectors++; |
||
5493 | } |
||
5494 | |||
5495 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) { |
||
5496 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", |
||
5497 | dev_priv->lvds_ssc_freq); |
||
5498 | return dev_priv->lvds_ssc_freq * 1000; |
||
5499 | } |
||
5500 | |||
5501 | return 120000; |
||
5502 | } |
||
5503 | |||
2327 | Serge | 5504 | static int ironlake_crtc_mode_set(struct drm_crtc *crtc, |
5505 | struct drm_display_mode *mode, |
||
5506 | struct drm_display_mode *adjusted_mode, |
||
5507 | int x, int y, |
||
5508 | struct drm_framebuffer *old_fb) |
||
5509 | { |
||
5510 | struct drm_device *dev = crtc->dev; |
||
5511 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
5512 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
5513 | int pipe = intel_crtc->pipe; |
||
5514 | int plane = intel_crtc->plane; |
||
5515 | int refclk, num_connectors = 0; |
||
5516 | intel_clock_t clock, reduced_clock; |
||
5517 | u32 dpll, fp = 0, fp2 = 0, dspcntr, pipeconf; |
||
5518 | bool ok, has_reduced_clock = false, is_sdvo = false; |
||
5519 | bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false; |
||
5520 | struct intel_encoder *has_edp_encoder = NULL; |
||
5521 | struct drm_mode_config *mode_config = &dev->mode_config; |
||
5522 | struct intel_encoder *encoder; |
||
5523 | const intel_limit_t *limit; |
||
5524 | int ret; |
||
5525 | struct fdi_m_n m_n = {0}; |
||
5526 | u32 temp; |
||
5527 | u32 lvds_sync = 0; |
||
5528 | int target_clock, pixel_multiplier, lane, link_bw, factor; |
||
5529 | unsigned int pipe_bpp; |
||
5530 | bool dither; |
||
5531 | |||
2336 | Serge | 5532 | ENTER(); |
5533 | |||
2327 | Serge | 5534 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) { |
5535 | if (encoder->base.crtc != crtc) |
||
5536 | continue; |
||
5537 | |||
5538 | switch (encoder->type) { |
||
5539 | case INTEL_OUTPUT_LVDS: |
||
5540 | is_lvds = true; |
||
5541 | break; |
||
5542 | case INTEL_OUTPUT_SDVO: |
||
5543 | case INTEL_OUTPUT_HDMI: |
||
5544 | is_sdvo = true; |
||
5545 | if (encoder->needs_tv_clock) |
||
5546 | is_tv = true; |
||
5547 | break; |
||
5548 | case INTEL_OUTPUT_TVOUT: |
||
5549 | is_tv = true; |
||
5550 | break; |
||
5551 | case INTEL_OUTPUT_ANALOG: |
||
5552 | is_crt = true; |
||
5553 | break; |
||
5554 | case INTEL_OUTPUT_DISPLAYPORT: |
||
5555 | is_dp = true; |
||
5556 | break; |
||
5557 | case INTEL_OUTPUT_EDP: |
||
5558 | has_edp_encoder = encoder; |
||
5559 | break; |
||
5560 | } |
||
5561 | |||
5562 | num_connectors++; |
||
5563 | } |
||
5564 | |||
2342 | Serge | 5565 | refclk = ironlake_get_refclk(crtc); |
2327 | Serge | 5566 | |
5567 | /* |
||
5568 | * Returns a set of divisors for the desired target clock with the given |
||
5569 | * refclk, or FALSE. The returned values represent the clock equation: |
||
5570 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. |
||
5571 | */ |
||
5572 | limit = intel_limit(crtc, refclk); |
||
5573 | ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, &clock); |
||
5574 | if (!ok) { |
||
5575 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); |
||
5576 | return -EINVAL; |
||
5577 | } |
||
5578 | |||
5579 | /* Ensure that the cursor is valid for the new mode before changing... */ |
||
5580 | // intel_crtc_update_cursor(crtc, true); |
||
5581 | |||
5582 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
||
5583 | has_reduced_clock = limit->find_pll(limit, crtc, |
||
5584 | dev_priv->lvds_downclock, |
||
5585 | refclk, |
||
5586 | &reduced_clock); |
||
5587 | if (has_reduced_clock && (clock.p != reduced_clock.p)) { |
||
5588 | /* |
||
5589 | * If the different P is found, it means that we can't |
||
5590 | * switch the display clock by using the FP0/FP1. |
||
5591 | * In such case we will disable the LVDS downclock |
||
5592 | * feature. |
||
5593 | */ |
||
5594 | DRM_DEBUG_KMS("Different P is found for " |
||
5595 | "LVDS clock/downclock\n"); |
||
5596 | has_reduced_clock = 0; |
||
5597 | } |
||
5598 | } |
||
5599 | /* SDVO TV has fixed PLL values depend on its clock range, |
||
5600 | this mirrors vbios setting. */ |
||
5601 | if (is_sdvo && is_tv) { |
||
5602 | if (adjusted_mode->clock >= 100000 |
||
5603 | && adjusted_mode->clock < 140500) { |
||
5604 | clock.p1 = 2; |
||
5605 | clock.p2 = 10; |
||
5606 | clock.n = 3; |
||
5607 | clock.m1 = 16; |
||
5608 | clock.m2 = 8; |
||
5609 | } else if (adjusted_mode->clock >= 140500 |
||
5610 | && adjusted_mode->clock <= 200000) { |
||
5611 | clock.p1 = 1; |
||
5612 | clock.p2 = 10; |
||
5613 | clock.n = 6; |
||
5614 | clock.m1 = 12; |
||
5615 | clock.m2 = 8; |
||
5616 | } |
||
5617 | } |
||
5618 | |||
5619 | /* FDI link */ |
||
5620 | pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); |
||
5621 | lane = 0; |
||
5622 | /* CPU eDP doesn't require FDI link, so just set DP M/N |
||
5623 | according to current link config */ |
||
5624 | if (has_edp_encoder && |
||
5625 | !intel_encoder_is_pch_edp(&has_edp_encoder->base)) { |
||
5626 | target_clock = mode->clock; |
||
5627 | intel_edp_link_config(has_edp_encoder, |
||
5628 | &lane, &link_bw); |
||
5629 | } else { |
||
5630 | /* [e]DP over FDI requires target mode clock |
||
5631 | instead of link clock */ |
||
5632 | if (is_dp || intel_encoder_is_pch_edp(&has_edp_encoder->base)) |
||
5633 | target_clock = mode->clock; |
||
5634 | else |
||
5635 | target_clock = adjusted_mode->clock; |
||
5636 | |||
5637 | /* FDI is a binary signal running at ~2.7GHz, encoding |
||
5638 | * each output octet as 10 bits. The actual frequency |
||
5639 | * is stored as a divider into a 100MHz clock, and the |
||
5640 | * mode pixel clock is stored in units of 1KHz. |
||
5641 | * Hence the bw of each lane in terms of the mode signal |
||
5642 | * is: |
||
5643 | */ |
||
5644 | link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10; |
||
5645 | } |
||
5646 | |||
5647 | /* determine panel color depth */ |
||
5648 | temp = I915_READ(PIPECONF(pipe)); |
||
5649 | temp &= ~PIPE_BPC_MASK; |
||
2342 | Serge | 5650 | dither = intel_choose_pipe_bpp_dither(crtc, &pipe_bpp, mode); |
2327 | Serge | 5651 | switch (pipe_bpp) { |
5652 | case 18: |
||
5653 | temp |= PIPE_6BPC; |
||
5654 | break; |
||
5655 | case 24: |
||
5656 | temp |= PIPE_8BPC; |
||
5657 | break; |
||
5658 | case 30: |
||
5659 | temp |= PIPE_10BPC; |
||
5660 | break; |
||
5661 | case 36: |
||
5662 | temp |= PIPE_12BPC; |
||
5663 | break; |
||
5664 | default: |
||
5665 | WARN(1, "intel_choose_pipe_bpp returned invalid value %d\n", |
||
5666 | pipe_bpp); |
||
5667 | temp |= PIPE_8BPC; |
||
5668 | pipe_bpp = 24; |
||
5669 | break; |
||
5670 | } |
||
5671 | |||
5672 | intel_crtc->bpp = pipe_bpp; |
||
5673 | I915_WRITE(PIPECONF(pipe), temp); |
||
5674 | |||
5675 | if (!lane) { |
||
5676 | /* |
||
5677 | * Account for spread spectrum to avoid |
||
5678 | * oversubscribing the link. Max center spread |
||
5679 | * is 2.5%; use 5% for safety's sake. |
||
5680 | */ |
||
5681 | u32 bps = target_clock * intel_crtc->bpp * 21 / 20; |
||
5682 | lane = bps / (link_bw * 8) + 1; |
||
5683 | } |
||
5684 | |||
5685 | intel_crtc->fdi_lanes = lane; |
||
5686 | |||
5687 | if (pixel_multiplier > 1) |
||
5688 | link_bw *= pixel_multiplier; |
||
5689 | ironlake_compute_m_n(intel_crtc->bpp, lane, target_clock, link_bw, |
||
5690 | &m_n); |
||
5691 | |||
5692 | fp = clock.n << 16 | clock.m1 << 8 | clock.m2; |
||
5693 | if (has_reduced_clock) |
||
5694 | fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 | |
||
5695 | reduced_clock.m2; |
||
5696 | |||
5697 | /* Enable autotuning of the PLL clock (if permissible) */ |
||
5698 | factor = 21; |
||
5699 | if (is_lvds) { |
||
5700 | if ((intel_panel_use_ssc(dev_priv) && |
||
5701 | dev_priv->lvds_ssc_freq == 100) || |
||
5702 | (I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP) |
||
5703 | factor = 25; |
||
5704 | } else if (is_sdvo && is_tv) |
||
5705 | factor = 20; |
||
5706 | |||
5707 | if (clock.m < factor * clock.n) |
||
5708 | fp |= FP_CB_TUNE; |
||
5709 | |||
5710 | dpll = 0; |
||
5711 | |||
5712 | if (is_lvds) |
||
5713 | dpll |= DPLLB_MODE_LVDS; |
||
5714 | else |
||
5715 | dpll |= DPLLB_MODE_DAC_SERIAL; |
||
5716 | if (is_sdvo) { |
||
5717 | int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); |
||
5718 | if (pixel_multiplier > 1) { |
||
5719 | dpll |= (pixel_multiplier - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; |
||
5720 | } |
||
5721 | dpll |= DPLL_DVO_HIGH_SPEED; |
||
5722 | } |
||
5723 | if (is_dp || intel_encoder_is_pch_edp(&has_edp_encoder->base)) |
||
5724 | dpll |= DPLL_DVO_HIGH_SPEED; |
||
5725 | |||
5726 | /* compute bitmask from p1 value */ |
||
5727 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
||
5728 | /* also FPA1 */ |
||
5729 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; |
||
5730 | |||
5731 | switch (clock.p2) { |
||
5732 | case 5: |
||
5733 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; |
||
5734 | break; |
||
5735 | case 7: |
||
5736 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; |
||
5737 | break; |
||
5738 | case 10: |
||
5739 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; |
||
5740 | break; |
||
5741 | case 14: |
||
5742 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; |
||
5743 | break; |
||
5744 | } |
||
5745 | |||
5746 | if (is_sdvo && is_tv) |
||
5747 | dpll |= PLL_REF_INPUT_TVCLKINBC; |
||
5748 | else if (is_tv) |
||
5749 | /* XXX: just matching BIOS for now */ |
||
5750 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ |
||
5751 | dpll |= 3; |
||
5752 | else if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
||
5753 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
||
5754 | else |
||
5755 | dpll |= PLL_REF_INPUT_DREFCLK; |
||
5756 | |||
5757 | /* setup pipeconf */ |
||
5758 | pipeconf = I915_READ(PIPECONF(pipe)); |
||
5759 | |||
5760 | /* Set up the display plane register */ |
||
5761 | dspcntr = DISPPLANE_GAMMA_ENABLE; |
||
5762 | |||
2342 | Serge | 5763 | DRM_DEBUG_KMS("Mode for pipe %d:\n", pipe); |
2327 | Serge | 5764 | drm_mode_debug_printmodeline(mode); |
5765 | |||
5766 | /* PCH eDP needs FDI, but CPU eDP does not */ |
||
2342 | Serge | 5767 | if (!intel_crtc->no_pll) { |
5768 | if (!has_edp_encoder || |
||
5769 | intel_encoder_is_pch_edp(&has_edp_encoder->base)) { |
||
2327 | Serge | 5770 | I915_WRITE(PCH_FP0(pipe), fp); |
5771 | I915_WRITE(PCH_DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); |
||
5772 | |||
5773 | POSTING_READ(PCH_DPLL(pipe)); |
||
5774 | udelay(150); |
||
5775 | } |
||
2342 | Serge | 5776 | } else { |
5777 | if (dpll == (I915_READ(PCH_DPLL(0)) & 0x7fffffff) && |
||
5778 | fp == I915_READ(PCH_FP0(0))) { |
||
5779 | intel_crtc->use_pll_a = true; |
||
5780 | DRM_DEBUG_KMS("using pipe a dpll\n"); |
||
5781 | } else if (dpll == (I915_READ(PCH_DPLL(1)) & 0x7fffffff) && |
||
5782 | fp == I915_READ(PCH_FP0(1))) { |
||
5783 | intel_crtc->use_pll_a = false; |
||
5784 | DRM_DEBUG_KMS("using pipe b dpll\n"); |
||
5785 | } else { |
||
5786 | DRM_DEBUG_KMS("no matching PLL configuration for pipe 2\n"); |
||
5787 | return -EINVAL; |
||
2327 | Serge | 5788 | } |
5789 | } |
||
5790 | |||
5791 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. |
||
5792 | * This is an exception to the general rule that mode_set doesn't turn |
||
5793 | * things on. |
||
5794 | */ |
||
5795 | if (is_lvds) { |
||
5796 | temp = I915_READ(PCH_LVDS); |
||
5797 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; |
||
2342 | Serge | 5798 | if (HAS_PCH_CPT(dev)) { |
5799 | temp &= ~PORT_TRANS_SEL_MASK; |
||
5800 | temp |= PORT_TRANS_SEL_CPT(pipe); |
||
5801 | } else { |
||
5802 | if (pipe == 1) |
||
2327 | Serge | 5803 | temp |= LVDS_PIPEB_SELECT; |
5804 | else |
||
5805 | temp &= ~LVDS_PIPEB_SELECT; |
||
5806 | } |
||
2342 | Serge | 5807 | |
2327 | Serge | 5808 | /* set the corresponsding LVDS_BORDER bit */ |
5809 | temp |= dev_priv->lvds_border_bits; |
||
5810 | /* Set the B0-B3 data pairs corresponding to whether we're going to |
||
5811 | * set the DPLLs for dual-channel mode or not. |
||
5812 | */ |
||
5813 | if (clock.p2 == 7) |
||
5814 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; |
||
5815 | else |
||
5816 | temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); |
||
5817 | |||
5818 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) |
||
5819 | * appropriately here, but we need to look more thoroughly into how |
||
5820 | * panels behave in the two modes. |
||
5821 | */ |
||
5822 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) |
||
5823 | lvds_sync |= LVDS_HSYNC_POLARITY; |
||
5824 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) |
||
5825 | lvds_sync |= LVDS_VSYNC_POLARITY; |
||
5826 | if ((temp & (LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY)) |
||
5827 | != lvds_sync) { |
||
5828 | char flags[2] = "-+"; |
||
5829 | DRM_INFO("Changing LVDS panel from " |
||
5830 | "(%chsync, %cvsync) to (%chsync, %cvsync)\n", |
||
5831 | flags[!(temp & LVDS_HSYNC_POLARITY)], |
||
5832 | flags[!(temp & LVDS_VSYNC_POLARITY)], |
||
5833 | flags[!(lvds_sync & LVDS_HSYNC_POLARITY)], |
||
5834 | flags[!(lvds_sync & LVDS_VSYNC_POLARITY)]); |
||
5835 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); |
||
5836 | temp |= lvds_sync; |
||
5837 | } |
||
5838 | I915_WRITE(PCH_LVDS, temp); |
||
5839 | } |
||
5840 | |||
5841 | pipeconf &= ~PIPECONF_DITHER_EN; |
||
5842 | pipeconf &= ~PIPECONF_DITHER_TYPE_MASK; |
||
5843 | if ((is_lvds && dev_priv->lvds_dither) || dither) { |
||
5844 | pipeconf |= PIPECONF_DITHER_EN; |
||
2342 | Serge | 5845 | pipeconf |= PIPECONF_DITHER_TYPE_SP; |
2327 | Serge | 5846 | } |
5847 | if (is_dp || intel_encoder_is_pch_edp(&has_edp_encoder->base)) { |
||
5848 | intel_dp_set_m_n(crtc, mode, adjusted_mode); |
||
5849 | } else { |
||
5850 | /* For non-DP output, clear any trans DP clock recovery setting.*/ |
||
5851 | I915_WRITE(TRANSDATA_M1(pipe), 0); |
||
5852 | I915_WRITE(TRANSDATA_N1(pipe), 0); |
||
5853 | I915_WRITE(TRANSDPLINK_M1(pipe), 0); |
||
5854 | I915_WRITE(TRANSDPLINK_N1(pipe), 0); |
||
5855 | } |
||
5856 | |||
2342 | Serge | 5857 | if (!intel_crtc->no_pll && |
5858 | (!has_edp_encoder || |
||
5859 | intel_encoder_is_pch_edp(&has_edp_encoder->base))) { |
||
2327 | Serge | 5860 | I915_WRITE(PCH_DPLL(pipe), dpll); |
5861 | |||
5862 | /* Wait for the clocks to stabilize. */ |
||
5863 | POSTING_READ(PCH_DPLL(pipe)); |
||
5864 | udelay(150); |
||
5865 | |||
5866 | /* The pixel multiplier can only be updated once the |
||
5867 | * DPLL is enabled and the clocks are stable. |
||
5868 | * |
||
5869 | * So write it again. |
||
5870 | */ |
||
5871 | I915_WRITE(PCH_DPLL(pipe), dpll); |
||
5872 | } |
||
5873 | |||
5874 | intel_crtc->lowfreq_avail = false; |
||
2342 | Serge | 5875 | if (!intel_crtc->no_pll) { |
2327 | Serge | 5876 | if (is_lvds && has_reduced_clock && i915_powersave) { |
5877 | I915_WRITE(PCH_FP1(pipe), fp2); |
||
5878 | intel_crtc->lowfreq_avail = true; |
||
5879 | if (HAS_PIPE_CXSR(dev)) { |
||
5880 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); |
||
5881 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; |
||
5882 | } |
||
5883 | } else { |
||
5884 | I915_WRITE(PCH_FP1(pipe), fp); |
||
5885 | if (HAS_PIPE_CXSR(dev)) { |
||
5886 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); |
||
5887 | pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK; |
||
5888 | } |
||
5889 | } |
||
2342 | Serge | 5890 | } |
2327 | Serge | 5891 | |
5892 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { |
||
5893 | pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; |
||
5894 | /* the chip adds 2 halflines automatically */ |
||
5895 | adjusted_mode->crtc_vdisplay -= 1; |
||
5896 | adjusted_mode->crtc_vtotal -= 1; |
||
5897 | adjusted_mode->crtc_vblank_start -= 1; |
||
5898 | adjusted_mode->crtc_vblank_end -= 1; |
||
5899 | adjusted_mode->crtc_vsync_end -= 1; |
||
5900 | adjusted_mode->crtc_vsync_start -= 1; |
||
5901 | } else |
||
5902 | pipeconf &= ~PIPECONF_INTERLACE_W_FIELD_INDICATION; /* progressive */ |
||
5903 | |||
5904 | I915_WRITE(HTOTAL(pipe), |
||
5905 | (adjusted_mode->crtc_hdisplay - 1) | |
||
5906 | ((adjusted_mode->crtc_htotal - 1) << 16)); |
||
5907 | I915_WRITE(HBLANK(pipe), |
||
5908 | (adjusted_mode->crtc_hblank_start - 1) | |
||
5909 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); |
||
5910 | I915_WRITE(HSYNC(pipe), |
||
5911 | (adjusted_mode->crtc_hsync_start - 1) | |
||
5912 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); |
||
5913 | |||
5914 | I915_WRITE(VTOTAL(pipe), |
||
5915 | (adjusted_mode->crtc_vdisplay - 1) | |
||
5916 | ((adjusted_mode->crtc_vtotal - 1) << 16)); |
||
5917 | I915_WRITE(VBLANK(pipe), |
||
5918 | (adjusted_mode->crtc_vblank_start - 1) | |
||
5919 | ((adjusted_mode->crtc_vblank_end - 1) << 16)); |
||
5920 | I915_WRITE(VSYNC(pipe), |
||
5921 | (adjusted_mode->crtc_vsync_start - 1) | |
||
5922 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); |
||
5923 | |||
5924 | /* pipesrc controls the size that is scaled from, which should |
||
5925 | * always be the user's requested size. |
||
5926 | */ |
||
5927 | I915_WRITE(PIPESRC(pipe), |
||
5928 | ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); |
||
5929 | |||
5930 | I915_WRITE(PIPE_DATA_M1(pipe), TU_SIZE(m_n.tu) | m_n.gmch_m); |
||
5931 | I915_WRITE(PIPE_DATA_N1(pipe), m_n.gmch_n); |
||
5932 | I915_WRITE(PIPE_LINK_M1(pipe), m_n.link_m); |
||
5933 | I915_WRITE(PIPE_LINK_N1(pipe), m_n.link_n); |
||
5934 | |||
5935 | if (has_edp_encoder && |
||
5936 | !intel_encoder_is_pch_edp(&has_edp_encoder->base)) { |
||
5937 | ironlake_set_pll_edp(crtc, adjusted_mode->clock); |
||
5938 | } |
||
5939 | |||
5940 | I915_WRITE(PIPECONF(pipe), pipeconf); |
||
5941 | POSTING_READ(PIPECONF(pipe)); |
||
5942 | |||
5943 | intel_wait_for_vblank(dev, pipe); |
||
5944 | |||
5945 | if (IS_GEN5(dev)) { |
||
5946 | /* enable address swizzle for tiling buffer */ |
||
5947 | temp = I915_READ(DISP_ARB_CTL); |
||
5948 | I915_WRITE(DISP_ARB_CTL, temp | DISP_TILE_SURFACE_SWIZZLING); |
||
5949 | } |
||
5950 | |||
5951 | I915_WRITE(DSPCNTR(plane), dspcntr); |
||
5952 | POSTING_READ(DSPCNTR(plane)); |
||
5953 | |||
5954 | ret = intel_pipe_set_base(crtc, x, y, old_fb); |
||
5955 | |||
2336 | Serge | 5956 | dbgprintf("Set base\n"); |
5957 | |||
2327 | Serge | 5958 | intel_update_watermarks(dev); |
5959 | |||
2336 | Serge | 5960 | LEAVE(); |
5961 | |||
2327 | Serge | 5962 | return ret; |
5963 | } |
||
5964 | |||
2330 | Serge | 5965 | static int intel_crtc_mode_set(struct drm_crtc *crtc, |
5966 | struct drm_display_mode *mode, |
||
5967 | struct drm_display_mode *adjusted_mode, |
||
5968 | int x, int y, |
||
5969 | struct drm_framebuffer *old_fb) |
||
5970 | { |
||
5971 | struct drm_device *dev = crtc->dev; |
||
5972 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
5973 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
5974 | int pipe = intel_crtc->pipe; |
||
5975 | int ret; |
||
2327 | Serge | 5976 | |
2330 | Serge | 5977 | // drm_vblank_pre_modeset(dev, pipe); |
2336 | Serge | 5978 | ENTER(); |
2327 | Serge | 5979 | |
2330 | Serge | 5980 | ret = dev_priv->display.crtc_mode_set(crtc, mode, adjusted_mode, |
5981 | x, y, old_fb); |
||
2327 | Serge | 5982 | |
2330 | Serge | 5983 | // drm_vblank_post_modeset(dev, pipe); |
2327 | Serge | 5984 | |
2330 | Serge | 5985 | intel_crtc->dpms_mode = DRM_MODE_DPMS_ON; |
2336 | Serge | 5986 | LEAVE(); |
2327 | Serge | 5987 | |
2330 | Serge | 5988 | return ret; |
5989 | } |
||
2327 | Serge | 5990 | |
2342 | Serge | 5991 | static bool intel_eld_uptodate(struct drm_connector *connector, |
5992 | int reg_eldv, uint32_t bits_eldv, |
||
5993 | int reg_elda, uint32_t bits_elda, |
||
5994 | int reg_edid) |
||
5995 | { |
||
5996 | struct drm_i915_private *dev_priv = connector->dev->dev_private; |
||
5997 | uint8_t *eld = connector->eld; |
||
5998 | uint32_t i; |
||
5999 | |||
6000 | i = I915_READ(reg_eldv); |
||
6001 | i &= bits_eldv; |
||
6002 | |||
6003 | if (!eld[0]) |
||
6004 | return !i; |
||
6005 | |||
6006 | if (!i) |
||
6007 | return false; |
||
6008 | |||
6009 | i = I915_READ(reg_elda); |
||
6010 | i &= ~bits_elda; |
||
6011 | I915_WRITE(reg_elda, i); |
||
6012 | |||
6013 | for (i = 0; i < eld[2]; i++) |
||
6014 | if (I915_READ(reg_edid) != *((uint32_t *)eld + i)) |
||
6015 | return false; |
||
6016 | |||
6017 | return true; |
||
6018 | } |
||
6019 | |||
6020 | static void g4x_write_eld(struct drm_connector *connector, |
||
6021 | struct drm_crtc *crtc) |
||
6022 | { |
||
6023 | struct drm_i915_private *dev_priv = connector->dev->dev_private; |
||
6024 | uint8_t *eld = connector->eld; |
||
6025 | uint32_t eldv; |
||
6026 | uint32_t len; |
||
6027 | uint32_t i; |
||
6028 | |||
6029 | i = I915_READ(G4X_AUD_VID_DID); |
||
6030 | |||
6031 | if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL) |
||
6032 | eldv = G4X_ELDV_DEVCL_DEVBLC; |
||
6033 | else |
||
6034 | eldv = G4X_ELDV_DEVCTG; |
||
6035 | |||
6036 | if (intel_eld_uptodate(connector, |
||
6037 | G4X_AUD_CNTL_ST, eldv, |
||
6038 | G4X_AUD_CNTL_ST, G4X_ELD_ADDR, |
||
6039 | G4X_HDMIW_HDMIEDID)) |
||
6040 | return; |
||
6041 | |||
6042 | i = I915_READ(G4X_AUD_CNTL_ST); |
||
6043 | i &= ~(eldv | G4X_ELD_ADDR); |
||
6044 | len = (i >> 9) & 0x1f; /* ELD buffer size */ |
||
6045 | I915_WRITE(G4X_AUD_CNTL_ST, i); |
||
6046 | |||
6047 | if (!eld[0]) |
||
6048 | return; |
||
6049 | |||
6050 | len = min_t(uint8_t, eld[2], len); |
||
6051 | DRM_DEBUG_DRIVER("ELD size %d\n", len); |
||
6052 | for (i = 0; i < len; i++) |
||
6053 | I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i)); |
||
6054 | |||
6055 | i = I915_READ(G4X_AUD_CNTL_ST); |
||
6056 | i |= eldv; |
||
6057 | I915_WRITE(G4X_AUD_CNTL_ST, i); |
||
6058 | } |
||
6059 | |||
6060 | static void ironlake_write_eld(struct drm_connector *connector, |
||
6061 | struct drm_crtc *crtc) |
||
6062 | { |
||
6063 | struct drm_i915_private *dev_priv = connector->dev->dev_private; |
||
6064 | uint8_t *eld = connector->eld; |
||
6065 | uint32_t eldv; |
||
6066 | uint32_t i; |
||
6067 | int len; |
||
6068 | int hdmiw_hdmiedid; |
||
6069 | int aud_cntl_st; |
||
6070 | int aud_cntrl_st2; |
||
6071 | |||
6072 | if (HAS_PCH_IBX(connector->dev)) { |
||
6073 | hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID_A; |
||
6074 | aud_cntl_st = IBX_AUD_CNTL_ST_A; |
||
6075 | aud_cntrl_st2 = IBX_AUD_CNTL_ST2; |
||
6076 | } else { |
||
6077 | hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID_A; |
||
6078 | aud_cntl_st = CPT_AUD_CNTL_ST_A; |
||
6079 | aud_cntrl_st2 = CPT_AUD_CNTRL_ST2; |
||
6080 | } |
||
6081 | |||
6082 | i = to_intel_crtc(crtc)->pipe; |
||
6083 | hdmiw_hdmiedid += i * 0x100; |
||
6084 | aud_cntl_st += i * 0x100; |
||
6085 | |||
6086 | DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(i)); |
||
6087 | |||
6088 | i = I915_READ(aud_cntl_st); |
||
6089 | i = (i >> 29) & 0x3; /* DIP_Port_Select, 0x1 = PortB */ |
||
6090 | if (!i) { |
||
6091 | DRM_DEBUG_DRIVER("Audio directed to unknown port\n"); |
||
6092 | /* operate blindly on all ports */ |
||
6093 | eldv = IBX_ELD_VALIDB; |
||
6094 | eldv |= IBX_ELD_VALIDB << 4; |
||
6095 | eldv |= IBX_ELD_VALIDB << 8; |
||
6096 | } else { |
||
6097 | DRM_DEBUG_DRIVER("ELD on port %c\n", 'A' + i); |
||
6098 | eldv = IBX_ELD_VALIDB << ((i - 1) * 4); |
||
6099 | } |
||
6100 | |||
6101 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
||
6102 | DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n"); |
||
6103 | eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */ |
||
6104 | } |
||
6105 | |||
6106 | if (intel_eld_uptodate(connector, |
||
6107 | aud_cntrl_st2, eldv, |
||
6108 | aud_cntl_st, IBX_ELD_ADDRESS, |
||
6109 | hdmiw_hdmiedid)) |
||
6110 | return; |
||
6111 | |||
6112 | i = I915_READ(aud_cntrl_st2); |
||
6113 | i &= ~eldv; |
||
6114 | I915_WRITE(aud_cntrl_st2, i); |
||
6115 | |||
6116 | if (!eld[0]) |
||
6117 | return; |
||
6118 | |||
6119 | i = I915_READ(aud_cntl_st); |
||
6120 | i &= ~IBX_ELD_ADDRESS; |
||
6121 | I915_WRITE(aud_cntl_st, i); |
||
6122 | |||
6123 | len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */ |
||
6124 | DRM_DEBUG_DRIVER("ELD size %d\n", len); |
||
6125 | for (i = 0; i < len; i++) |
||
6126 | I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i)); |
||
6127 | |||
6128 | i = I915_READ(aud_cntrl_st2); |
||
6129 | i |= eldv; |
||
6130 | I915_WRITE(aud_cntrl_st2, i); |
||
6131 | } |
||
6132 | |||
6133 | void intel_write_eld(struct drm_encoder *encoder, |
||
6134 | struct drm_display_mode *mode) |
||
6135 | { |
||
6136 | struct drm_crtc *crtc = encoder->crtc; |
||
6137 | struct drm_connector *connector; |
||
6138 | struct drm_device *dev = encoder->dev; |
||
6139 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
6140 | |||
6141 | connector = drm_select_eld(encoder, mode); |
||
6142 | if (!connector) |
||
6143 | return; |
||
6144 | |||
6145 | DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
||
6146 | connector->base.id, |
||
6147 | drm_get_connector_name(connector), |
||
6148 | connector->encoder->base.id, |
||
6149 | drm_get_encoder_name(connector->encoder)); |
||
6150 | |||
6151 | connector->eld[6] = drm_av_sync_delay(connector, mode) / 2; |
||
6152 | |||
6153 | if (dev_priv->display.write_eld) |
||
6154 | dev_priv->display.write_eld(connector, crtc); |
||
6155 | } |
||
6156 | |||
2327 | Serge | 6157 | /** Loads the palette/gamma unit for the CRTC with the prepared values */ |
6158 | void intel_crtc_load_lut(struct drm_crtc *crtc) |
||
6159 | { |
||
6160 | struct drm_device *dev = crtc->dev; |
||
6161 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
6162 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
6163 | int palreg = PALETTE(intel_crtc->pipe); |
||
6164 | int i; |
||
6165 | |||
6166 | /* The clocks have to be on to load the palette. */ |
||
6167 | if (!crtc->enabled) |
||
6168 | return; |
||
6169 | |||
6170 | /* use legacy palette for Ironlake */ |
||
6171 | if (HAS_PCH_SPLIT(dev)) |
||
6172 | palreg = LGC_PALETTE(intel_crtc->pipe); |
||
6173 | |||
6174 | for (i = 0; i < 256; i++) { |
||
6175 | I915_WRITE(palreg + 4 * i, |
||
6176 | (intel_crtc->lut_r[i] << 16) | |
||
6177 | (intel_crtc->lut_g[i] << 8) | |
||
6178 | intel_crtc->lut_b[i]); |
||
6179 | } |
||
6180 | } |
||
6181 | |||
6182 | |||
6183 | |||
6184 | |||
6185 | |||
6186 | |||
6187 | |||
6188 | |||
6189 | |||
6190 | |||
6191 | |||
6192 | |||
6193 | |||
6194 | |||
6195 | |||
6196 | |||
6197 | |||
6198 | |||
6199 | |||
6200 | |||
6201 | |||
6202 | |||
6203 | |||
6204 | |||
6205 | |||
6206 | |||
6207 | |||
6208 | |||
6209 | |||
6210 | |||
6211 | |||
6212 | |||
6213 | |||
6214 | |||
6215 | |||
6216 | |||
6217 | |||
2332 | Serge | 6218 | /** Sets the color ramps on behalf of RandR */ |
6219 | void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, |
||
6220 | u16 blue, int regno) |
||
6221 | { |
||
6222 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2327 | Serge | 6223 | |
2332 | Serge | 6224 | intel_crtc->lut_r[regno] = red >> 8; |
6225 | intel_crtc->lut_g[regno] = green >> 8; |
||
6226 | intel_crtc->lut_b[regno] = blue >> 8; |
||
6227 | } |
||
2327 | Serge | 6228 | |
2332 | Serge | 6229 | void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, |
6230 | u16 *blue, int regno) |
||
6231 | { |
||
6232 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2327 | Serge | 6233 | |
2332 | Serge | 6234 | *red = intel_crtc->lut_r[regno] << 8; |
6235 | *green = intel_crtc->lut_g[regno] << 8; |
||
6236 | *blue = intel_crtc->lut_b[regno] << 8; |
||
6237 | } |
||
2327 | Serge | 6238 | |
2330 | Serge | 6239 | static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, |
6240 | u16 *blue, uint32_t start, uint32_t size) |
||
6241 | { |
||
6242 | int end = (start + size > 256) ? 256 : start + size, i; |
||
6243 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2327 | Serge | 6244 | |
2330 | Serge | 6245 | for (i = start; i < end; i++) { |
6246 | intel_crtc->lut_r[i] = red[i] >> 8; |
||
6247 | intel_crtc->lut_g[i] = green[i] >> 8; |
||
6248 | intel_crtc->lut_b[i] = blue[i] >> 8; |
||
6249 | } |
||
2327 | Serge | 6250 | |
2330 | Serge | 6251 | intel_crtc_load_lut(crtc); |
6252 | } |
||
2327 | Serge | 6253 | |
2330 | Serge | 6254 | /** |
6255 | * Get a pipe with a simple mode set on it for doing load-based monitor |
||
6256 | * detection. |
||
6257 | * |
||
6258 | * It will be up to the load-detect code to adjust the pipe as appropriate for |
||
6259 | * its requirements. The pipe will be connected to no other encoders. |
||
6260 | * |
||
6261 | * Currently this code will only succeed if there is a pipe with no encoders |
||
6262 | * configured for it. In the future, it could choose to temporarily disable |
||
6263 | * some outputs to free up a pipe for its use. |
||
6264 | * |
||
6265 | * \return crtc, or NULL if no pipes are available. |
||
6266 | */ |
||
2327 | Serge | 6267 | |
2330 | Serge | 6268 | /* VESA 640x480x72Hz mode to set on the pipe */ |
6269 | static struct drm_display_mode load_detect_mode = { |
||
6270 | DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, |
||
6271 | 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), |
||
6272 | }; |
||
2327 | Serge | 6273 | |
6274 | |||
6275 | |||
6276 | |||
6277 | |||
2330 | Serge | 6278 | static u32 |
6279 | intel_framebuffer_pitch_for_width(int width, int bpp) |
||
6280 | { |
||
6281 | u32 pitch = DIV_ROUND_UP(width * bpp, 8); |
||
6282 | return ALIGN(pitch, 64); |
||
6283 | } |
||
2327 | Serge | 6284 | |
2330 | Serge | 6285 | static u32 |
6286 | intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp) |
||
6287 | { |
||
6288 | u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp); |
||
6289 | return ALIGN(pitch * mode->vdisplay, PAGE_SIZE); |
||
6290 | } |
||
2327 | Serge | 6291 | |
2330 | Serge | 6292 | static struct drm_framebuffer * |
6293 | intel_framebuffer_create_for_mode(struct drm_device *dev, |
||
6294 | struct drm_display_mode *mode, |
||
6295 | int depth, int bpp) |
||
6296 | { |
||
6297 | struct drm_i915_gem_object *obj; |
||
2344 | Serge | 6298 | struct drm_mode_fb_cmd2 mode_cmd; |
2327 | Serge | 6299 | |
2330 | Serge | 6300 | // obj = i915_gem_alloc_object(dev, |
6301 | // intel_framebuffer_size_for_mode(mode, bpp)); |
||
6302 | // if (obj == NULL) |
||
6303 | return ERR_PTR(-ENOMEM); |
||
2327 | Serge | 6304 | |
2330 | Serge | 6305 | // mode_cmd.width = mode->hdisplay; |
6306 | // mode_cmd.height = mode->vdisplay; |
||
6307 | // mode_cmd.depth = depth; |
||
6308 | // mode_cmd.bpp = bpp; |
||
6309 | // mode_cmd.pitch = intel_framebuffer_pitch_for_width(mode_cmd.width, bpp); |
||
2327 | Serge | 6310 | |
2330 | Serge | 6311 | // return intel_framebuffer_create(dev, &mode_cmd, obj); |
6312 | } |
||
2327 | Serge | 6313 | |
2330 | Serge | 6314 | static struct drm_framebuffer * |
6315 | mode_fits_in_fbdev(struct drm_device *dev, |
||
6316 | struct drm_display_mode *mode) |
||
6317 | { |
||
6318 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
6319 | struct drm_i915_gem_object *obj; |
||
6320 | struct drm_framebuffer *fb; |
||
2327 | Serge | 6321 | |
2330 | Serge | 6322 | // if (dev_priv->fbdev == NULL) |
6323 | // return NULL; |
||
2327 | Serge | 6324 | |
2330 | Serge | 6325 | // obj = dev_priv->fbdev->ifb.obj; |
6326 | // if (obj == NULL) |
||
6327 | // return NULL; |
||
2327 | Serge | 6328 | |
2330 | Serge | 6329 | // fb = &dev_priv->fbdev->ifb.base; |
6330 | // if (fb->pitch < intel_framebuffer_pitch_for_width(mode->hdisplay, |
||
6331 | // fb->bits_per_pixel)) |
||
6332 | return NULL; |
||
2327 | Serge | 6333 | |
2330 | Serge | 6334 | // if (obj->base.size < mode->vdisplay * fb->pitch) |
6335 | // return NULL; |
||
2327 | Serge | 6336 | |
2330 | Serge | 6337 | // return fb; |
6338 | } |
||
2327 | Serge | 6339 | |
2330 | Serge | 6340 | bool intel_get_load_detect_pipe(struct intel_encoder *intel_encoder, |
6341 | struct drm_connector *connector, |
||
6342 | struct drm_display_mode *mode, |
||
6343 | struct intel_load_detect_pipe *old) |
||
6344 | { |
||
6345 | struct intel_crtc *intel_crtc; |
||
6346 | struct drm_crtc *possible_crtc; |
||
6347 | struct drm_encoder *encoder = &intel_encoder->base; |
||
6348 | struct drm_crtc *crtc = NULL; |
||
6349 | struct drm_device *dev = encoder->dev; |
||
6350 | struct drm_framebuffer *old_fb; |
||
6351 | int i = -1; |
||
2327 | Serge | 6352 | |
2330 | Serge | 6353 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
6354 | connector->base.id, drm_get_connector_name(connector), |
||
6355 | encoder->base.id, drm_get_encoder_name(encoder)); |
||
2327 | Serge | 6356 | |
2330 | Serge | 6357 | /* |
6358 | * Algorithm gets a little messy: |
||
6359 | * |
||
6360 | * - if the connector already has an assigned crtc, use it (but make |
||
6361 | * sure it's on first) |
||
6362 | * |
||
6363 | * - try to find the first unused crtc that can drive this connector, |
||
6364 | * and use that if we find one |
||
6365 | */ |
||
2327 | Serge | 6366 | |
2330 | Serge | 6367 | /* See if we already have a CRTC for this connector */ |
6368 | if (encoder->crtc) { |
||
6369 | crtc = encoder->crtc; |
||
2327 | Serge | 6370 | |
2330 | Serge | 6371 | intel_crtc = to_intel_crtc(crtc); |
6372 | old->dpms_mode = intel_crtc->dpms_mode; |
||
6373 | old->load_detect_temp = false; |
||
2327 | Serge | 6374 | |
2330 | Serge | 6375 | /* Make sure the crtc and connector are running */ |
6376 | if (intel_crtc->dpms_mode != DRM_MODE_DPMS_ON) { |
||
6377 | struct drm_encoder_helper_funcs *encoder_funcs; |
||
6378 | struct drm_crtc_helper_funcs *crtc_funcs; |
||
2327 | Serge | 6379 | |
2330 | Serge | 6380 | crtc_funcs = crtc->helper_private; |
6381 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); |
||
2327 | Serge | 6382 | |
2330 | Serge | 6383 | encoder_funcs = encoder->helper_private; |
6384 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); |
||
6385 | } |
||
2327 | Serge | 6386 | |
2330 | Serge | 6387 | return true; |
6388 | } |
||
2327 | Serge | 6389 | |
2330 | Serge | 6390 | /* Find an unused one (if possible) */ |
6391 | list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) { |
||
6392 | i++; |
||
6393 | if (!(encoder->possible_crtcs & (1 << i))) |
||
6394 | continue; |
||
6395 | if (!possible_crtc->enabled) { |
||
6396 | crtc = possible_crtc; |
||
6397 | break; |
||
6398 | } |
||
6399 | } |
||
2327 | Serge | 6400 | |
2330 | Serge | 6401 | /* |
6402 | * If we didn't find an unused CRTC, don't use any. |
||
6403 | */ |
||
6404 | if (!crtc) { |
||
6405 | DRM_DEBUG_KMS("no pipe available for load-detect\n"); |
||
6406 | return false; |
||
6407 | } |
||
2327 | Serge | 6408 | |
2330 | Serge | 6409 | encoder->crtc = crtc; |
6410 | connector->encoder = encoder; |
||
2327 | Serge | 6411 | |
2330 | Serge | 6412 | intel_crtc = to_intel_crtc(crtc); |
6413 | old->dpms_mode = intel_crtc->dpms_mode; |
||
6414 | old->load_detect_temp = true; |
||
6415 | old->release_fb = NULL; |
||
2327 | Serge | 6416 | |
2330 | Serge | 6417 | if (!mode) |
6418 | mode = &load_detect_mode; |
||
2327 | Serge | 6419 | |
2330 | Serge | 6420 | old_fb = crtc->fb; |
2327 | Serge | 6421 | |
2330 | Serge | 6422 | /* We need a framebuffer large enough to accommodate all accesses |
6423 | * that the plane may generate whilst we perform load detection. |
||
6424 | * We can not rely on the fbcon either being present (we get called |
||
6425 | * during its initialisation to detect all boot displays, or it may |
||
6426 | * not even exist) or that it is large enough to satisfy the |
||
6427 | * requested mode. |
||
6428 | */ |
||
6429 | crtc->fb = mode_fits_in_fbdev(dev, mode); |
||
6430 | if (crtc->fb == NULL) { |
||
6431 | DRM_DEBUG_KMS("creating tmp fb for load-detection\n"); |
||
6432 | crtc->fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32); |
||
6433 | old->release_fb = crtc->fb; |
||
6434 | } else |
||
6435 | DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n"); |
||
6436 | if (IS_ERR(crtc->fb)) { |
||
6437 | DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n"); |
||
6438 | crtc->fb = old_fb; |
||
6439 | return false; |
||
6440 | } |
||
2327 | Serge | 6441 | |
2330 | Serge | 6442 | if (!drm_crtc_helper_set_mode(crtc, mode, 0, 0, old_fb)) { |
6443 | DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n"); |
||
6444 | if (old->release_fb) |
||
6445 | old->release_fb->funcs->destroy(old->release_fb); |
||
6446 | crtc->fb = old_fb; |
||
6447 | return false; |
||
6448 | } |
||
2327 | Serge | 6449 | |
2330 | Serge | 6450 | /* let the connector get through one full cycle before testing */ |
6451 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
||
2327 | Serge | 6452 | |
2330 | Serge | 6453 | return true; |
6454 | } |
||
2327 | Serge | 6455 | |
2330 | Serge | 6456 | void intel_release_load_detect_pipe(struct intel_encoder *intel_encoder, |
6457 | struct drm_connector *connector, |
||
6458 | struct intel_load_detect_pipe *old) |
||
6459 | { |
||
6460 | struct drm_encoder *encoder = &intel_encoder->base; |
||
6461 | struct drm_device *dev = encoder->dev; |
||
6462 | struct drm_crtc *crtc = encoder->crtc; |
||
6463 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; |
||
6464 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; |
||
2327 | Serge | 6465 | |
2330 | Serge | 6466 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
6467 | connector->base.id, drm_get_connector_name(connector), |
||
6468 | encoder->base.id, drm_get_encoder_name(encoder)); |
||
2327 | Serge | 6469 | |
2330 | Serge | 6470 | if (old->load_detect_temp) { |
6471 | connector->encoder = NULL; |
||
6472 | drm_helper_disable_unused_functions(dev); |
||
2327 | Serge | 6473 | |
2330 | Serge | 6474 | if (old->release_fb) |
6475 | old->release_fb->funcs->destroy(old->release_fb); |
||
2327 | Serge | 6476 | |
2330 | Serge | 6477 | return; |
6478 | } |
||
2327 | Serge | 6479 | |
2330 | Serge | 6480 | /* Switch crtc and encoder back off if necessary */ |
6481 | if (old->dpms_mode != DRM_MODE_DPMS_ON) { |
||
6482 | encoder_funcs->dpms(encoder, old->dpms_mode); |
||
6483 | crtc_funcs->dpms(crtc, old->dpms_mode); |
||
6484 | } |
||
6485 | } |
||
2327 | Serge | 6486 | |
2330 | Serge | 6487 | /* Returns the clock of the currently programmed mode of the given pipe. */ |
6488 | static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc) |
||
6489 | { |
||
6490 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
6491 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
6492 | int pipe = intel_crtc->pipe; |
||
6493 | u32 dpll = I915_READ(DPLL(pipe)); |
||
6494 | u32 fp; |
||
6495 | intel_clock_t clock; |
||
2327 | Serge | 6496 | |
2330 | Serge | 6497 | if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) |
6498 | fp = I915_READ(FP0(pipe)); |
||
6499 | else |
||
6500 | fp = I915_READ(FP1(pipe)); |
||
2327 | Serge | 6501 | |
2330 | Serge | 6502 | clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; |
6503 | if (IS_PINEVIEW(dev)) { |
||
6504 | clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; |
||
6505 | clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT; |
||
6506 | } else { |
||
6507 | clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; |
||
6508 | clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; |
||
6509 | } |
||
2327 | Serge | 6510 | |
2330 | Serge | 6511 | if (!IS_GEN2(dev)) { |
6512 | if (IS_PINEVIEW(dev)) |
||
6513 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >> |
||
6514 | DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW); |
||
6515 | else |
||
6516 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> |
||
6517 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
||
2327 | Serge | 6518 | |
2330 | Serge | 6519 | switch (dpll & DPLL_MODE_MASK) { |
6520 | case DPLLB_MODE_DAC_SERIAL: |
||
6521 | clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? |
||
6522 | 5 : 10; |
||
6523 | break; |
||
6524 | case DPLLB_MODE_LVDS: |
||
6525 | clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? |
||
6526 | 7 : 14; |
||
6527 | break; |
||
6528 | default: |
||
6529 | DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed " |
||
6530 | "mode\n", (int)(dpll & DPLL_MODE_MASK)); |
||
6531 | return 0; |
||
6532 | } |
||
2327 | Serge | 6533 | |
2330 | Serge | 6534 | /* XXX: Handle the 100Mhz refclk */ |
6535 | intel_clock(dev, 96000, &clock); |
||
6536 | } else { |
||
6537 | bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN); |
||
2327 | Serge | 6538 | |
2330 | Serge | 6539 | if (is_lvds) { |
6540 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> |
||
6541 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
||
6542 | clock.p2 = 14; |
||
2327 | Serge | 6543 | |
2330 | Serge | 6544 | if ((dpll & PLL_REF_INPUT_MASK) == |
6545 | PLLB_REF_INPUT_SPREADSPECTRUMIN) { |
||
6546 | /* XXX: might not be 66MHz */ |
||
6547 | intel_clock(dev, 66000, &clock); |
||
6548 | } else |
||
6549 | intel_clock(dev, 48000, &clock); |
||
6550 | } else { |
||
6551 | if (dpll & PLL_P1_DIVIDE_BY_TWO) |
||
6552 | clock.p1 = 2; |
||
6553 | else { |
||
6554 | clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> |
||
6555 | DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; |
||
6556 | } |
||
6557 | if (dpll & PLL_P2_DIVIDE_BY_4) |
||
6558 | clock.p2 = 4; |
||
6559 | else |
||
6560 | clock.p2 = 2; |
||
2327 | Serge | 6561 | |
2330 | Serge | 6562 | intel_clock(dev, 48000, &clock); |
6563 | } |
||
6564 | } |
||
2327 | Serge | 6565 | |
2330 | Serge | 6566 | /* XXX: It would be nice to validate the clocks, but we can't reuse |
6567 | * i830PllIsValid() because it relies on the xf86_config connector |
||
6568 | * configuration being accurate, which it isn't necessarily. |
||
6569 | */ |
||
2327 | Serge | 6570 | |
2330 | Serge | 6571 | return clock.dot; |
6572 | } |
||
2327 | Serge | 6573 | |
2330 | Serge | 6574 | /** Returns the currently programmed mode of the given pipe. */ |
6575 | struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, |
||
6576 | struct drm_crtc *crtc) |
||
6577 | { |
||
6578 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
6579 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
6580 | int pipe = intel_crtc->pipe; |
||
6581 | struct drm_display_mode *mode; |
||
6582 | int htot = I915_READ(HTOTAL(pipe)); |
||
6583 | int hsync = I915_READ(HSYNC(pipe)); |
||
6584 | int vtot = I915_READ(VTOTAL(pipe)); |
||
6585 | int vsync = I915_READ(VSYNC(pipe)); |
||
2327 | Serge | 6586 | |
2330 | Serge | 6587 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); |
6588 | if (!mode) |
||
6589 | return NULL; |
||
6590 | |||
6591 | mode->clock = intel_crtc_clock_get(dev, crtc); |
||
6592 | mode->hdisplay = (htot & 0xffff) + 1; |
||
6593 | mode->htotal = ((htot & 0xffff0000) >> 16) + 1; |
||
6594 | mode->hsync_start = (hsync & 0xffff) + 1; |
||
6595 | mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; |
||
6596 | mode->vdisplay = (vtot & 0xffff) + 1; |
||
6597 | mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; |
||
6598 | mode->vsync_start = (vsync & 0xffff) + 1; |
||
6599 | mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; |
||
6600 | |||
6601 | drm_mode_set_name(mode); |
||
6602 | drm_mode_set_crtcinfo(mode, 0); |
||
6603 | |||
6604 | return mode; |
||
6605 | } |
||
6606 | |||
6607 | #define GPU_IDLE_TIMEOUT 500 /* ms */ |
||
6608 | |||
6609 | |||
6610 | |||
6611 | |||
6612 | #define CRTC_IDLE_TIMEOUT 1000 /* ms */ |
||
6613 | |||
6614 | |||
6615 | |||
6616 | |||
2327 | Serge | 6617 | static void intel_increase_pllclock(struct drm_crtc *crtc) |
6618 | { |
||
6619 | struct drm_device *dev = crtc->dev; |
||
6620 | drm_i915_private_t *dev_priv = dev->dev_private; |
||
6621 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
6622 | int pipe = intel_crtc->pipe; |
||
6623 | int dpll_reg = DPLL(pipe); |
||
6624 | int dpll; |
||
6625 | |||
2336 | Serge | 6626 | ENTER(); |
6627 | |||
2327 | Serge | 6628 | if (HAS_PCH_SPLIT(dev)) |
6629 | return; |
||
6630 | |||
6631 | if (!dev_priv->lvds_downclock_avail) |
||
6632 | return; |
||
6633 | |||
6634 | dpll = I915_READ(dpll_reg); |
||
6635 | if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) { |
||
6636 | DRM_DEBUG_DRIVER("upclocking LVDS\n"); |
||
6637 | |||
6638 | /* Unlock panel regs */ |
||
6639 | I915_WRITE(PP_CONTROL, |
||
6640 | I915_READ(PP_CONTROL) | PANEL_UNLOCK_REGS); |
||
6641 | |||
6642 | dpll &= ~DISPLAY_RATE_SELECT_FPA1; |
||
6643 | I915_WRITE(dpll_reg, dpll); |
||
6644 | intel_wait_for_vblank(dev, pipe); |
||
6645 | |||
6646 | dpll = I915_READ(dpll_reg); |
||
6647 | if (dpll & DISPLAY_RATE_SELECT_FPA1) |
||
6648 | DRM_DEBUG_DRIVER("failed to upclock LVDS!\n"); |
||
6649 | |||
6650 | /* ...and lock them again */ |
||
6651 | I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) & 0x3); |
||
6652 | } |
||
6653 | |||
2336 | Serge | 6654 | LEAVE(); |
6655 | |||
2327 | Serge | 6656 | /* Schedule downclock */ |
6657 | } |
||
6658 | |||
6659 | |||
6660 | |||
6661 | |||
6662 | |||
6663 | |||
6664 | |||
6665 | |||
6666 | |||
6667 | |||
6668 | |||
6669 | |||
6670 | |||
6671 | |||
6672 | |||
6673 | |||
6674 | |||
6675 | |||
6676 | |||
6677 | |||
6678 | |||
6679 | |||
2330 | Serge | 6680 | static void intel_crtc_destroy(struct drm_crtc *crtc) |
6681 | { |
||
6682 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
6683 | struct drm_device *dev = crtc->dev; |
||
6684 | struct intel_unpin_work *work; |
||
6685 | unsigned long flags; |
||
2327 | Serge | 6686 | |
2330 | Serge | 6687 | spin_lock_irqsave(&dev->event_lock, flags); |
6688 | work = intel_crtc->unpin_work; |
||
6689 | intel_crtc->unpin_work = NULL; |
||
6690 | spin_unlock_irqrestore(&dev->event_lock, flags); |
||
2327 | Serge | 6691 | |
2330 | Serge | 6692 | if (work) { |
6693 | // cancel_work_sync(&work->work); |
||
6694 | kfree(work); |
||
6695 | } |
||
2327 | Serge | 6696 | |
2330 | Serge | 6697 | drm_crtc_cleanup(crtc); |
2327 | Serge | 6698 | |
2330 | Serge | 6699 | kfree(intel_crtc); |
6700 | } |
||
2327 | Serge | 6701 | |
6702 | |||
6703 | |||
6704 | |||
6705 | |||
6706 | |||
6707 | |||
6708 | |||
6709 | |||
6710 | |||
6711 | |||
6712 | |||
6713 | |||
6714 | |||
6715 | |||
6716 | |||
6717 | |||
6718 | |||
6719 | |||
6720 | |||
6721 | |||
6722 | |||
6723 | |||
6724 | |||
6725 | |||
6726 | |||
6727 | |||
6728 | |||
6729 | |||
6730 | |||
6731 | |||
6732 | |||
6733 | |||
6734 | |||
6735 | |||
6736 | |||
6737 | |||
6738 | |||
6739 | |||
6740 | |||
6741 | |||
6742 | |||
6743 | |||
6744 | |||
6745 | |||
6746 | |||
6747 | |||
6748 | |||
6749 | |||
6750 | |||
6751 | |||
6752 | |||
6753 | |||
6754 | |||
6755 | |||
6756 | |||
6757 | |||
6758 | |||
6759 | |||
6760 | |||
6761 | |||
6762 | |||
6763 | |||
6764 | |||
6765 | |||
6766 | |||
2330 | Serge | 6767 | static void intel_sanitize_modesetting(struct drm_device *dev, |
6768 | int pipe, int plane) |
||
6769 | { |
||
6770 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
6771 | u32 reg, val; |
||
2327 | Serge | 6772 | |
2330 | Serge | 6773 | if (HAS_PCH_SPLIT(dev)) |
6774 | return; |
||
2327 | Serge | 6775 | |
2330 | Serge | 6776 | /* Who knows what state these registers were left in by the BIOS or |
6777 | * grub? |
||
6778 | * |
||
6779 | * If we leave the registers in a conflicting state (e.g. with the |
||
6780 | * display plane reading from the other pipe than the one we intend |
||
6781 | * to use) then when we attempt to teardown the active mode, we will |
||
6782 | * not disable the pipes and planes in the correct order -- leaving |
||
6783 | * a plane reading from a disabled pipe and possibly leading to |
||
6784 | * undefined behaviour. |
||
6785 | */ |
||
2327 | Serge | 6786 | |
2330 | Serge | 6787 | reg = DSPCNTR(plane); |
6788 | val = I915_READ(reg); |
||
2327 | Serge | 6789 | |
2330 | Serge | 6790 | if ((val & DISPLAY_PLANE_ENABLE) == 0) |
6791 | return; |
||
6792 | if (!!(val & DISPPLANE_SEL_PIPE_MASK) == pipe) |
||
6793 | return; |
||
2327 | Serge | 6794 | |
2330 | Serge | 6795 | /* This display plane is active and attached to the other CPU pipe. */ |
6796 | pipe = !pipe; |
||
2327 | Serge | 6797 | |
2330 | Serge | 6798 | /* Disable the plane and wait for it to stop reading from the pipe. */ |
6799 | intel_disable_plane(dev_priv, plane, pipe); |
||
6800 | intel_disable_pipe(dev_priv, pipe); |
||
6801 | } |
||
2327 | Serge | 6802 | |
2330 | Serge | 6803 | static void intel_crtc_reset(struct drm_crtc *crtc) |
6804 | { |
||
6805 | struct drm_device *dev = crtc->dev; |
||
6806 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
||
2327 | Serge | 6807 | |
2330 | Serge | 6808 | /* Reset flags back to the 'unknown' status so that they |
6809 | * will be correctly set on the initial modeset. |
||
6810 | */ |
||
6811 | intel_crtc->dpms_mode = -1; |
||
2327 | Serge | 6812 | |
2330 | Serge | 6813 | /* We need to fix up any BIOS configuration that conflicts with |
6814 | * our expectations. |
||
6815 | */ |
||
6816 | intel_sanitize_modesetting(dev, intel_crtc->pipe, intel_crtc->plane); |
||
6817 | } |
||
2327 | Serge | 6818 | |
2330 | Serge | 6819 | static struct drm_crtc_helper_funcs intel_helper_funcs = { |
6820 | .dpms = intel_crtc_dpms, |
||
6821 | .mode_fixup = intel_crtc_mode_fixup, |
||
6822 | .mode_set = intel_crtc_mode_set, |
||
6823 | .mode_set_base = intel_pipe_set_base, |
||
6824 | .mode_set_base_atomic = intel_pipe_set_base_atomic, |
||
6825 | .load_lut = intel_crtc_load_lut, |
||
6826 | .disable = intel_crtc_disable, |
||
6827 | }; |
||
2327 | Serge | 6828 | |
2330 | Serge | 6829 | static const struct drm_crtc_funcs intel_crtc_funcs = { |
6830 | .reset = intel_crtc_reset, |
||
6831 | // .cursor_set = intel_crtc_cursor_set, |
||
6832 | // .cursor_move = intel_crtc_cursor_move, |
||
6833 | .gamma_set = intel_crtc_gamma_set, |
||
6834 | .set_config = drm_crtc_helper_set_config, |
||
6835 | .destroy = intel_crtc_destroy, |
||
6836 | // .page_flip = intel_crtc_page_flip, |
||
6837 | }; |
||
2327 | Serge | 6838 | |
2330 | Serge | 6839 | static void intel_crtc_init(struct drm_device *dev, int pipe) |
6840 | { |
||
6841 | drm_i915_private_t *dev_priv = dev->dev_private; |
||
6842 | struct intel_crtc *intel_crtc; |
||
6843 | int i; |
||
2327 | Serge | 6844 | |
2330 | Serge | 6845 | intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL); |
6846 | if (intel_crtc == NULL) |
||
6847 | return; |
||
2327 | Serge | 6848 | |
2330 | Serge | 6849 | drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs); |
2327 | Serge | 6850 | |
2330 | Serge | 6851 | drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256); |
6852 | for (i = 0; i < 256; i++) { |
||
6853 | intel_crtc->lut_r[i] = i; |
||
6854 | intel_crtc->lut_g[i] = i; |
||
6855 | intel_crtc->lut_b[i] = i; |
||
6856 | } |
||
2327 | Serge | 6857 | |
2330 | Serge | 6858 | /* Swap pipes & planes for FBC on pre-965 */ |
6859 | intel_crtc->pipe = pipe; |
||
6860 | intel_crtc->plane = pipe; |
||
6861 | if (IS_MOBILE(dev) && IS_GEN3(dev)) { |
||
6862 | DRM_DEBUG_KMS("swapping pipes & planes for FBC\n"); |
||
6863 | intel_crtc->plane = !pipe; |
||
6864 | } |
||
2327 | Serge | 6865 | |
2330 | Serge | 6866 | BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) || |
6867 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL); |
||
6868 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base; |
||
6869 | dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base; |
||
2327 | Serge | 6870 | |
2330 | Serge | 6871 | intel_crtc_reset(&intel_crtc->base); |
6872 | intel_crtc->active = true; /* force the pipe off on setup_init_config */ |
||
6873 | intel_crtc->bpp = 24; /* default for pre-Ironlake */ |
||
2327 | Serge | 6874 | |
2330 | Serge | 6875 | if (HAS_PCH_SPLIT(dev)) { |
2342 | Serge | 6876 | if (pipe == 2 && IS_IVYBRIDGE(dev)) |
6877 | intel_crtc->no_pll = true; |
||
2330 | Serge | 6878 | intel_helper_funcs.prepare = ironlake_crtc_prepare; |
6879 | intel_helper_funcs.commit = ironlake_crtc_commit; |
||
6880 | } else { |
||
6881 | intel_helper_funcs.prepare = i9xx_crtc_prepare; |
||
6882 | intel_helper_funcs.commit = i9xx_crtc_commit; |
||
6883 | } |
||
2327 | Serge | 6884 | |
2330 | Serge | 6885 | drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); |
2327 | Serge | 6886 | |
2330 | Serge | 6887 | intel_crtc->busy = false; |
2327 | Serge | 6888 | |
2330 | Serge | 6889 | } |
2327 | Serge | 6890 | |
6891 | |||
6892 | |||
6893 | |||
6894 | |||
6895 | |||
6896 | |||
2330 | Serge | 6897 | static int intel_encoder_clones(struct drm_device *dev, int type_mask) |
6898 | { |
||
6899 | struct intel_encoder *encoder; |
||
6900 | int index_mask = 0; |
||
6901 | int entry = 0; |
||
2327 | Serge | 6902 | |
2330 | Serge | 6903 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
6904 | if (type_mask & encoder->clone_mask) |
||
6905 | index_mask |= (1 << entry); |
||
6906 | entry++; |
||
6907 | } |
||
2327 | Serge | 6908 | |
2330 | Serge | 6909 | return index_mask; |
6910 | } |
||
2327 | Serge | 6911 | |
2330 | Serge | 6912 | static bool has_edp_a(struct drm_device *dev) |
6913 | { |
||
6914 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2327 | Serge | 6915 | |
2330 | Serge | 6916 | if (!IS_MOBILE(dev)) |
6917 | return false; |
||
2327 | Serge | 6918 | |
2330 | Serge | 6919 | if ((I915_READ(DP_A) & DP_DETECTED) == 0) |
6920 | return false; |
||
2327 | Serge | 6921 | |
2330 | Serge | 6922 | if (IS_GEN5(dev) && |
6923 | (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE)) |
||
6924 | return false; |
||
2327 | Serge | 6925 | |
2330 | Serge | 6926 | return true; |
6927 | } |
||
2327 | Serge | 6928 | |
2330 | Serge | 6929 | static void intel_setup_outputs(struct drm_device *dev) |
6930 | { |
||
6931 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
6932 | struct intel_encoder *encoder; |
||
6933 | bool dpd_is_edp = false; |
||
6934 | bool has_lvds = false; |
||
2327 | Serge | 6935 | |
2336 | Serge | 6936 | ENTER(); |
6937 | |||
2330 | Serge | 6938 | if (IS_MOBILE(dev) && !IS_I830(dev)) |
6939 | has_lvds = intel_lvds_init(dev); |
||
6940 | if (!has_lvds && !HAS_PCH_SPLIT(dev)) { |
||
6941 | /* disable the panel fitter on everything but LVDS */ |
||
6942 | I915_WRITE(PFIT_CONTROL, 0); |
||
6943 | } |
||
2327 | Serge | 6944 | |
2330 | Serge | 6945 | if (HAS_PCH_SPLIT(dev)) { |
6946 | dpd_is_edp = intel_dpd_is_edp(dev); |
||
2327 | Serge | 6947 | |
2330 | Serge | 6948 | if (has_edp_a(dev)) |
6949 | intel_dp_init(dev, DP_A); |
||
2327 | Serge | 6950 | |
2330 | Serge | 6951 | if (dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED)) |
6952 | intel_dp_init(dev, PCH_DP_D); |
||
6953 | } |
||
2327 | Serge | 6954 | |
2330 | Serge | 6955 | intel_crt_init(dev); |
2327 | Serge | 6956 | |
2330 | Serge | 6957 | if (HAS_PCH_SPLIT(dev)) { |
6958 | int found; |
||
2327 | Serge | 6959 | |
2330 | Serge | 6960 | if (I915_READ(HDMIB) & PORT_DETECTED) { |
6961 | /* PCH SDVOB multiplex with HDMIB */ |
||
6962 | found = intel_sdvo_init(dev, PCH_SDVOB); |
||
6963 | if (!found) |
||
6964 | intel_hdmi_init(dev, HDMIB); |
||
6965 | if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) |
||
6966 | intel_dp_init(dev, PCH_DP_B); |
||
6967 | } |
||
2327 | Serge | 6968 | |
2330 | Serge | 6969 | if (I915_READ(HDMIC) & PORT_DETECTED) |
6970 | intel_hdmi_init(dev, HDMIC); |
||
2327 | Serge | 6971 | |
2330 | Serge | 6972 | if (I915_READ(HDMID) & PORT_DETECTED) |
6973 | intel_hdmi_init(dev, HDMID); |
||
2327 | Serge | 6974 | |
2330 | Serge | 6975 | if (I915_READ(PCH_DP_C) & DP_DETECTED) |
6976 | intel_dp_init(dev, PCH_DP_C); |
||
2327 | Serge | 6977 | |
2330 | Serge | 6978 | if (!dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED)) |
6979 | intel_dp_init(dev, PCH_DP_D); |
||
2327 | Serge | 6980 | |
2330 | Serge | 6981 | } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) { |
6982 | bool found = false; |
||
2327 | Serge | 6983 | |
2330 | Serge | 6984 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
6985 | DRM_DEBUG_KMS("probing SDVOB\n"); |
||
6986 | found = intel_sdvo_init(dev, SDVOB); |
||
6987 | if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) { |
||
6988 | DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); |
||
6989 | intel_hdmi_init(dev, SDVOB); |
||
6990 | } |
||
2327 | Serge | 6991 | |
2330 | Serge | 6992 | if (!found && SUPPORTS_INTEGRATED_DP(dev)) { |
6993 | DRM_DEBUG_KMS("probing DP_B\n"); |
||
6994 | intel_dp_init(dev, DP_B); |
||
6995 | } |
||
6996 | } |
||
2327 | Serge | 6997 | |
2330 | Serge | 6998 | /* Before G4X SDVOC doesn't have its own detect register */ |
2327 | Serge | 6999 | |
2330 | Serge | 7000 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
7001 | DRM_DEBUG_KMS("probing SDVOC\n"); |
||
7002 | found = intel_sdvo_init(dev, SDVOC); |
||
7003 | } |
||
2327 | Serge | 7004 | |
2330 | Serge | 7005 | if (!found && (I915_READ(SDVOC) & SDVO_DETECTED)) { |
2327 | Serge | 7006 | |
2330 | Serge | 7007 | if (SUPPORTS_INTEGRATED_HDMI(dev)) { |
7008 | DRM_DEBUG_KMS("probing HDMI on SDVOC\n"); |
||
7009 | intel_hdmi_init(dev, SDVOC); |
||
7010 | } |
||
7011 | if (SUPPORTS_INTEGRATED_DP(dev)) { |
||
7012 | DRM_DEBUG_KMS("probing DP_C\n"); |
||
7013 | intel_dp_init(dev, DP_C); |
||
7014 | } |
||
7015 | } |
||
2327 | Serge | 7016 | |
2330 | Serge | 7017 | if (SUPPORTS_INTEGRATED_DP(dev) && |
7018 | (I915_READ(DP_D) & DP_DETECTED)) { |
||
7019 | DRM_DEBUG_KMS("probing DP_D\n"); |
||
7020 | intel_dp_init(dev, DP_D); |
||
7021 | } |
||
7022 | } else if (IS_GEN2(dev)) |
||
7023 | intel_dvo_init(dev); |
||
2327 | Serge | 7024 | |
2330 | Serge | 7025 | // if (SUPPORTS_TV(dev)) |
7026 | // intel_tv_init(dev); |
||
2327 | Serge | 7027 | |
2330 | Serge | 7028 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
7029 | encoder->base.possible_crtcs = encoder->crtc_mask; |
||
7030 | encoder->base.possible_clones = |
||
7031 | intel_encoder_clones(dev, encoder->clone_mask); |
||
7032 | } |
||
2327 | Serge | 7033 | |
2330 | Serge | 7034 | /* disable all the possible outputs/crtcs before entering KMS mode */ |
7035 | // drm_helper_disable_unused_functions(dev); |
||
2336 | Serge | 7036 | |
2342 | Serge | 7037 | if (HAS_PCH_SPLIT(dev)) |
7038 | ironlake_init_pch_refclk(dev); |
||
7039 | |||
2336 | Serge | 7040 | LEAVE(); |
2330 | Serge | 7041 | } |
7042 | |||
7043 | |||
7044 | |||
7045 | |||
2327 | Serge | 7046 | static const struct drm_mode_config_funcs intel_mode_funcs = { |
7047 | .fb_create = NULL /*intel_user_framebuffer_create*/, |
||
7048 | .output_poll_changed = NULL /*intel_fb_output_poll_changed*/, |
||
7049 | }; |
||
7050 | |||
7051 | |||
7052 | |||
7053 | |||
2335 | Serge | 7054 | static const struct drm_framebuffer_funcs intel_fb_funcs = { |
7055 | // .destroy = intel_user_framebuffer_destroy, |
||
7056 | // .create_handle = intel_user_framebuffer_create_handle, |
||
7057 | }; |
||
2327 | Serge | 7058 | |
2335 | Serge | 7059 | int intel_framebuffer_init(struct drm_device *dev, |
7060 | struct intel_framebuffer *intel_fb, |
||
2342 | Serge | 7061 | struct drm_mode_fb_cmd2 *mode_cmd, |
2335 | Serge | 7062 | struct drm_i915_gem_object *obj) |
7063 | { |
||
7064 | int ret; |
||
2327 | Serge | 7065 | |
2335 | Serge | 7066 | if (obj->tiling_mode == I915_TILING_Y) |
7067 | return -EINVAL; |
||
2327 | Serge | 7068 | |
2342 | Serge | 7069 | if (mode_cmd->pitches[0] & 63) |
2335 | Serge | 7070 | return -EINVAL; |
2327 | Serge | 7071 | |
2342 | Serge | 7072 | switch (mode_cmd->pixel_format) { |
7073 | case DRM_FORMAT_RGB332: |
||
7074 | case DRM_FORMAT_RGB565: |
||
7075 | case DRM_FORMAT_XRGB8888: |
||
7076 | case DRM_FORMAT_ARGB8888: |
||
7077 | case DRM_FORMAT_XRGB2101010: |
||
7078 | case DRM_FORMAT_ARGB2101010: |
||
7079 | /* RGB formats are common across chipsets */ |
||
2335 | Serge | 7080 | break; |
2342 | Serge | 7081 | case DRM_FORMAT_YUYV: |
7082 | case DRM_FORMAT_UYVY: |
||
7083 | case DRM_FORMAT_YVYU: |
||
7084 | case DRM_FORMAT_VYUY: |
||
7085 | break; |
||
2335 | Serge | 7086 | default: |
2342 | Serge | 7087 | DRM_ERROR("unsupported pixel format\n"); |
2335 | Serge | 7088 | return -EINVAL; |
7089 | } |
||
2327 | Serge | 7090 | |
2335 | Serge | 7091 | ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); |
7092 | if (ret) { |
||
7093 | DRM_ERROR("framebuffer init failed %d\n", ret); |
||
7094 | return ret; |
||
7095 | } |
||
2327 | Serge | 7096 | |
2335 | Serge | 7097 | drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); |
7098 | intel_fb->obj = obj; |
||
7099 | return 0; |
||
7100 | } |
||
2327 | Serge | 7101 | |
7102 | |||
7103 | |||
7104 | |||
7105 | |||
7106 | |||
7107 | |||
7108 | |||
7109 | |||
7110 | |||
7111 | |||
7112 | |||
2330 | Serge | 7113 | bool ironlake_set_drps(struct drm_device *dev, u8 val) |
7114 | { |
||
7115 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
7116 | u16 rgvswctl; |
||
2327 | Serge | 7117 | |
2330 | Serge | 7118 | rgvswctl = I915_READ16(MEMSWCTL); |
7119 | if (rgvswctl & MEMCTL_CMD_STS) { |
||
7120 | DRM_DEBUG("gpu busy, RCS change rejected\n"); |
||
7121 | return false; /* still busy with another command */ |
||
7122 | } |
||
2327 | Serge | 7123 | |
2330 | Serge | 7124 | rgvswctl = (MEMCTL_CMD_CHFREQ << MEMCTL_CMD_SHIFT) | |
7125 | (val << MEMCTL_FREQ_SHIFT) | MEMCTL_SFCAVM; |
||
7126 | I915_WRITE16(MEMSWCTL, rgvswctl); |
||
7127 | POSTING_READ16(MEMSWCTL); |
||
2327 | Serge | 7128 | |
2330 | Serge | 7129 | rgvswctl |= MEMCTL_CMD_STS; |
7130 | I915_WRITE16(MEMSWCTL, rgvswctl); |
||
2327 | Serge | 7131 | |
2330 | Serge | 7132 | return true; |
7133 | } |
||
2327 | Serge | 7134 | |
2330 | Serge | 7135 | void ironlake_enable_drps(struct drm_device *dev) |
7136 | { |
||
7137 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
7138 | u32 rgvmodectl = I915_READ(MEMMODECTL); |
||
7139 | u8 fmax, fmin, fstart, vstart; |
||
2327 | Serge | 7140 | |
2330 | Serge | 7141 | /* Enable temp reporting */ |
7142 | I915_WRITE16(PMMISC, I915_READ(PMMISC) | MCPPCE_EN); |
||
7143 | I915_WRITE16(TSC1, I915_READ(TSC1) | TSE); |
||
2327 | Serge | 7144 | |
2330 | Serge | 7145 | /* 100ms RC evaluation intervals */ |
7146 | I915_WRITE(RCUPEI, 100000); |
||
7147 | I915_WRITE(RCDNEI, 100000); |
||
2327 | Serge | 7148 | |
2330 | Serge | 7149 | /* Set max/min thresholds to 90ms and 80ms respectively */ |
7150 | I915_WRITE(RCBMAXAVG, 90000); |
||
7151 | I915_WRITE(RCBMINAVG, 80000); |
||
2327 | Serge | 7152 | |
2330 | Serge | 7153 | I915_WRITE(MEMIHYST, 1); |
2327 | Serge | 7154 | |
2330 | Serge | 7155 | /* Set up min, max, and cur for interrupt handling */ |
7156 | fmax = (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT; |
||
7157 | fmin = (rgvmodectl & MEMMODE_FMIN_MASK); |
||
7158 | fstart = (rgvmodectl & MEMMODE_FSTART_MASK) >> |
||
7159 | MEMMODE_FSTART_SHIFT; |
||
2327 | Serge | 7160 | |
2330 | Serge | 7161 | vstart = (I915_READ(PXVFREQ_BASE + (fstart * 4)) & PXVFREQ_PX_MASK) >> |
7162 | PXVFREQ_PX_SHIFT; |
||
2327 | Serge | 7163 | |
2330 | Serge | 7164 | dev_priv->fmax = fmax; /* IPS callback will increase this */ |
7165 | dev_priv->fstart = fstart; |
||
2327 | Serge | 7166 | |
2330 | Serge | 7167 | dev_priv->max_delay = fstart; |
7168 | dev_priv->min_delay = fmin; |
||
7169 | dev_priv->cur_delay = fstart; |
||
2327 | Serge | 7170 | |
2330 | Serge | 7171 | DRM_DEBUG_DRIVER("fmax: %d, fmin: %d, fstart: %d\n", |
7172 | fmax, fmin, fstart); |
||
2327 | Serge | 7173 | |
2330 | Serge | 7174 | I915_WRITE(MEMINTREN, MEMINT_CX_SUPR_EN | MEMINT_EVAL_CHG_EN); |
2327 | Serge | 7175 | |
2330 | Serge | 7176 | /* |
7177 | * Interrupts will be enabled in ironlake_irq_postinstall |
||
7178 | */ |
||
2327 | Serge | 7179 | |
2330 | Serge | 7180 | I915_WRITE(VIDSTART, vstart); |
7181 | POSTING_READ(VIDSTART); |
||
2327 | Serge | 7182 | |
2330 | Serge | 7183 | rgvmodectl |= MEMMODE_SWMODE_EN; |
7184 | I915_WRITE(MEMMODECTL, rgvmodectl); |
||
2327 | Serge | 7185 | |
2330 | Serge | 7186 | if (wait_for((I915_READ(MEMSWCTL) & MEMCTL_CMD_STS) == 0, 10)) |
7187 | DRM_ERROR("stuck trying to change perf mode\n"); |
||
7188 | msleep(1); |
||
2327 | Serge | 7189 | |
2330 | Serge | 7190 | ironlake_set_drps(dev, fstart); |
2327 | Serge | 7191 | |
2330 | Serge | 7192 | dev_priv->last_count1 = I915_READ(0x112e4) + I915_READ(0x112e8) + |
7193 | I915_READ(0x112e0); |
||
7194 | // dev_priv->last_time1 = jiffies_to_msecs(jiffies); |
||
7195 | dev_priv->last_count2 = I915_READ(0x112f4); |
||
7196 | // getrawmonotonic(&dev_priv->last_time2); |
||
7197 | } |
||
2327 | Serge | 7198 | |
7199 | |||
7200 | |||
7201 | |||
7202 | |||
7203 | |||
7204 | |||
7205 | |||
7206 | |||
7207 | |||
7208 | |||
7209 | |||
2330 | Serge | 7210 | static unsigned long intel_pxfreq(u32 vidfreq) |
7211 | { |
||
7212 | unsigned long freq; |
||
7213 | int div = (vidfreq & 0x3f0000) >> 16; |
||
7214 | int post = (vidfreq & 0x3000) >> 12; |
||
7215 | int pre = (vidfreq & 0x7); |
||
2327 | Serge | 7216 | |
2330 | Serge | 7217 | if (!pre) |
7218 | return 0; |
||
2327 | Serge | 7219 | |
2330 | Serge | 7220 | freq = ((div * 133333) / ((1< |
2327 | Serge | 7221 | |
2330 | Serge | 7222 | return freq; |
7223 | } |
||
2327 | Serge | 7224 | |
2330 | Serge | 7225 | void intel_init_emon(struct drm_device *dev) |
7226 | { |
||
7227 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
7228 | u32 lcfuse; |
||
7229 | u8 pxw[16]; |
||
7230 | int i; |
||
2327 | Serge | 7231 | |
2330 | Serge | 7232 | /* Disable to program */ |
7233 | I915_WRITE(ECR, 0); |
||
7234 | POSTING_READ(ECR); |
||
2327 | Serge | 7235 | |
2330 | Serge | 7236 | /* Program energy weights for various events */ |
7237 | I915_WRITE(SDEW, 0x15040d00); |
||
7238 | I915_WRITE(CSIEW0, 0x007f0000); |
||
7239 | I915_WRITE(CSIEW1, 0x1e220004); |
||
7240 | I915_WRITE(CSIEW2, 0x04000004); |
||
2327 | Serge | 7241 | |
2330 | Serge | 7242 | for (i = 0; i < 5; i++) |
7243 | I915_WRITE(PEW + (i * 4), 0); |
||
7244 | for (i = 0; i < 3; i++) |
||
7245 | I915_WRITE(DEW + (i * 4), 0); |
||
2327 | Serge | 7246 | |
2330 | Serge | 7247 | /* Program P-state weights to account for frequency power adjustment */ |
7248 | for (i = 0; i < 16; i++) { |
||
7249 | u32 pxvidfreq = I915_READ(PXVFREQ_BASE + (i * 4)); |
||
7250 | unsigned long freq = intel_pxfreq(pxvidfreq); |
||
7251 | unsigned long vid = (pxvidfreq & PXVFREQ_PX_MASK) >> |
||
7252 | PXVFREQ_PX_SHIFT; |
||
7253 | unsigned long val; |
||
2327 | Serge | 7254 | |
2330 | Serge | 7255 | val = vid * vid; |
7256 | val *= (freq / 1000); |
||
7257 | val *= 255; |
||
7258 | val /= (127*127*900); |
||
7259 | if (val > 0xff) |
||
7260 | DRM_ERROR("bad pxval: %ld\n", val); |
||
7261 | pxw[i] = val; |
||
7262 | } |
||
7263 | /* Render standby states get 0 weight */ |
||
7264 | pxw[14] = 0; |
||
7265 | pxw[15] = 0; |
||
2327 | Serge | 7266 | |
2330 | Serge | 7267 | for (i = 0; i < 4; i++) { |
7268 | u32 val = (pxw[i*4] << 24) | (pxw[(i*4)+1] << 16) | |
||
7269 | (pxw[(i*4)+2] << 8) | (pxw[(i*4)+3]); |
||
7270 | I915_WRITE(PXW + (i * 4), val); |
||
7271 | } |
||
2327 | Serge | 7272 | |
2330 | Serge | 7273 | /* Adjust magic regs to magic values (more experimental results) */ |
7274 | I915_WRITE(OGW0, 0); |
||
7275 | I915_WRITE(OGW1, 0); |
||
7276 | I915_WRITE(EG0, 0x00007f00); |
||
7277 | I915_WRITE(EG1, 0x0000000e); |
||
7278 | I915_WRITE(EG2, 0x000e0000); |
||
7279 | I915_WRITE(EG3, 0x68000300); |
||
7280 | I915_WRITE(EG4, 0x42000000); |
||
7281 | I915_WRITE(EG5, 0x00140031); |
||
7282 | I915_WRITE(EG6, 0); |
||
7283 | I915_WRITE(EG7, 0); |
||
2327 | Serge | 7284 | |
2330 | Serge | 7285 | for (i = 0; i < 8; i++) |
7286 | I915_WRITE(PXWL + (i * 4), 0); |
||
2327 | Serge | 7287 | |
2330 | Serge | 7288 | /* Enable PMON + select events */ |
7289 | I915_WRITE(ECR, 0x80000019); |
||
2327 | Serge | 7290 | |
2330 | Serge | 7291 | lcfuse = I915_READ(LCFUSE02); |
7292 | |||
7293 | dev_priv->corr = (lcfuse & LCFUSE_HIV_MASK); |
||
7294 | } |
||
7295 | |||
2342 | Serge | 7296 | static bool intel_enable_rc6(struct drm_device *dev) |
7297 | { |
||
7298 | /* |
||
7299 | * Respect the kernel parameter if it is set |
||
7300 | */ |
||
7301 | if (i915_enable_rc6 >= 0) |
||
7302 | return i915_enable_rc6; |
||
7303 | |||
7304 | /* |
||
7305 | * Disable RC6 on Ironlake |
||
7306 | */ |
||
7307 | if (INTEL_INFO(dev)->gen == 5) |
||
7308 | return 0; |
||
7309 | |||
7310 | /* |
||
7311 | * Disable rc6 on Sandybridge |
||
7312 | */ |
||
7313 | if (INTEL_INFO(dev)->gen == 6) { |
||
7314 | DRM_DEBUG_DRIVER("Sandybridge: RC6 disabled\n"); |
||
7315 | return 0; |
||
7316 | } |
||
7317 | DRM_DEBUG_DRIVER("RC6 enabled\n"); |
||
7318 | return 1; |
||
7319 | } |
||
7320 | |||
2330 | Serge | 7321 | void gen6_enable_rps(struct drm_i915_private *dev_priv) |
7322 | { |
||
7323 | u32 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP); |
||
7324 | u32 gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS); |
||
7325 | u32 pcu_mbox, rc6_mask = 0; |
||
7326 | int cur_freq, min_freq, max_freq; |
||
7327 | int i; |
||
7328 | |||
7329 | /* Here begins a magic sequence of register writes to enable |
||
7330 | * auto-downclocking. |
||
7331 | * |
||
7332 | * Perhaps there might be some value in exposing these to |
||
7333 | * userspace... |
||
7334 | */ |
||
7335 | I915_WRITE(GEN6_RC_STATE, 0); |
||
7336 | mutex_lock(&dev_priv->dev->struct_mutex); |
||
7337 | gen6_gt_force_wake_get(dev_priv); |
||
7338 | |||
7339 | /* disable the counters and set deterministic thresholds */ |
||
7340 | I915_WRITE(GEN6_RC_CONTROL, 0); |
||
7341 | |||
7342 | I915_WRITE(GEN6_RC1_WAKE_RATE_LIMIT, 1000 << 16); |
||
7343 | I915_WRITE(GEN6_RC6_WAKE_RATE_LIMIT, 40 << 16 | 30); |
||
7344 | I915_WRITE(GEN6_RC6pp_WAKE_RATE_LIMIT, 30); |
||
7345 | I915_WRITE(GEN6_RC_EVALUATION_INTERVAL, 125000); |
||
7346 | I915_WRITE(GEN6_RC_IDLE_HYSTERSIS, 25); |
||
7347 | |||
7348 | for (i = 0; i < I915_NUM_RINGS; i++) |
||
7349 | I915_WRITE(RING_MAX_IDLE(dev_priv->ring[i].mmio_base), 10); |
||
7350 | |||
7351 | I915_WRITE(GEN6_RC_SLEEP, 0); |
||
7352 | I915_WRITE(GEN6_RC1e_THRESHOLD, 1000); |
||
7353 | I915_WRITE(GEN6_RC6_THRESHOLD, 50000); |
||
7354 | I915_WRITE(GEN6_RC6p_THRESHOLD, 100000); |
||
7355 | I915_WRITE(GEN6_RC6pp_THRESHOLD, 64000); /* unused */ |
||
7356 | |||
2342 | Serge | 7357 | if (intel_enable_rc6(dev_priv->dev)) |
2330 | Serge | 7358 | rc6_mask = GEN6_RC_CTL_RC6p_ENABLE | |
7359 | GEN6_RC_CTL_RC6_ENABLE; |
||
7360 | |||
7361 | I915_WRITE(GEN6_RC_CONTROL, |
||
7362 | rc6_mask | |
||
7363 | GEN6_RC_CTL_EI_MODE(1) | |
||
7364 | GEN6_RC_CTL_HW_ENABLE); |
||
7365 | |||
7366 | I915_WRITE(GEN6_RPNSWREQ, |
||
7367 | GEN6_FREQUENCY(10) | |
||
7368 | GEN6_OFFSET(0) | |
||
7369 | GEN6_AGGRESSIVE_TURBO); |
||
7370 | I915_WRITE(GEN6_RC_VIDEO_FREQ, |
||
7371 | GEN6_FREQUENCY(12)); |
||
7372 | |||
7373 | I915_WRITE(GEN6_RP_DOWN_TIMEOUT, 1000000); |
||
7374 | I915_WRITE(GEN6_RP_INTERRUPT_LIMITS, |
||
7375 | 18 << 24 | |
||
7376 | 6 << 16); |
||
7377 | I915_WRITE(GEN6_RP_UP_THRESHOLD, 10000); |
||
7378 | I915_WRITE(GEN6_RP_DOWN_THRESHOLD, 1000000); |
||
7379 | I915_WRITE(GEN6_RP_UP_EI, 100000); |
||
7380 | I915_WRITE(GEN6_RP_DOWN_EI, 5000000); |
||
7381 | I915_WRITE(GEN6_RP_IDLE_HYSTERSIS, 10); |
||
7382 | I915_WRITE(GEN6_RP_CONTROL, |
||
7383 | GEN6_RP_MEDIA_TURBO | |
||
2342 | Serge | 7384 | GEN6_RP_MEDIA_HW_MODE | |
2330 | Serge | 7385 | GEN6_RP_MEDIA_IS_GFX | |
7386 | GEN6_RP_ENABLE | |
||
7387 | GEN6_RP_UP_BUSY_AVG | |
||
7388 | GEN6_RP_DOWN_IDLE_CONT); |
||
7389 | |||
7390 | if (wait_for((I915_READ(GEN6_PCODE_MAILBOX) & GEN6_PCODE_READY) == 0, |
||
7391 | 500)) |
||
7392 | DRM_ERROR("timeout waiting for pcode mailbox to become idle\n"); |
||
7393 | |||
7394 | I915_WRITE(GEN6_PCODE_DATA, 0); |
||
7395 | I915_WRITE(GEN6_PCODE_MAILBOX, |
||
7396 | GEN6_PCODE_READY | |
||
7397 | GEN6_PCODE_WRITE_MIN_FREQ_TABLE); |
||
7398 | if (wait_for((I915_READ(GEN6_PCODE_MAILBOX) & GEN6_PCODE_READY) == 0, |
||
7399 | 500)) |
||
7400 | DRM_ERROR("timeout waiting for pcode mailbox to finish\n"); |
||
7401 | |||
7402 | min_freq = (rp_state_cap & 0xff0000) >> 16; |
||
7403 | max_freq = rp_state_cap & 0xff; |
||
7404 | cur_freq = (gt_perf_status & 0xff00) >> 8; |
||
7405 | |||
7406 | /* Check for overclock support */ |
||
7407 | if (wait_for((I915_READ(GEN6_PCODE_MAILBOX) & GEN6_PCODE_READY) == 0, |
||
7408 | 500)) |
||
7409 | DRM_ERROR("timeout waiting for pcode mailbox to become idle\n"); |
||
7410 | I915_WRITE(GEN6_PCODE_MAILBOX, GEN6_READ_OC_PARAMS); |
||
7411 | pcu_mbox = I915_READ(GEN6_PCODE_DATA); |
||
7412 | if (wait_for((I915_READ(GEN6_PCODE_MAILBOX) & GEN6_PCODE_READY) == 0, |
||
7413 | 500)) |
||
7414 | DRM_ERROR("timeout waiting for pcode mailbox to finish\n"); |
||
7415 | if (pcu_mbox & (1<<31)) { /* OC supported */ |
||
7416 | max_freq = pcu_mbox & 0xff; |
||
7417 | DRM_DEBUG_DRIVER("overclocking supported, adjusting frequency max to %dMHz\n", pcu_mbox * 50); |
||
7418 | } |
||
7419 | |||
7420 | /* In units of 100MHz */ |
||
7421 | dev_priv->max_delay = max_freq; |
||
7422 | dev_priv->min_delay = min_freq; |
||
7423 | dev_priv->cur_delay = cur_freq; |
||
7424 | |||
7425 | /* requires MSI enabled */ |
||
7426 | I915_WRITE(GEN6_PMIER, |
||
7427 | GEN6_PM_MBOX_EVENT | |
||
7428 | GEN6_PM_THERMAL_EVENT | |
||
7429 | GEN6_PM_RP_DOWN_TIMEOUT | |
||
7430 | GEN6_PM_RP_UP_THRESHOLD | |
||
7431 | GEN6_PM_RP_DOWN_THRESHOLD | |
||
7432 | GEN6_PM_RP_UP_EI_EXPIRED | |
||
7433 | GEN6_PM_RP_DOWN_EI_EXPIRED); |
||
7434 | // spin_lock_irq(&dev_priv->rps_lock); |
||
7435 | // WARN_ON(dev_priv->pm_iir != 0); |
||
7436 | I915_WRITE(GEN6_PMIMR, 0); |
||
7437 | // spin_unlock_irq(&dev_priv->rps_lock); |
||
7438 | /* enable all PM interrupts */ |
||
7439 | I915_WRITE(GEN6_PMINTRMSK, 0); |
||
7440 | |||
7441 | gen6_gt_force_wake_put(dev_priv); |
||
7442 | mutex_unlock(&dev_priv->dev->struct_mutex); |
||
7443 | } |
||
7444 | |||
7445 | void gen6_update_ring_freq(struct drm_i915_private *dev_priv) |
||
7446 | { |
||
7447 | int min_freq = 15; |
||
7448 | int gpu_freq, ia_freq, max_ia_freq; |
||
7449 | int scaling_factor = 180; |
||
7450 | |||
7451 | // max_ia_freq = cpufreq_quick_get_max(0); |
||
7452 | /* |
||
7453 | * Default to measured freq if none found, PCU will ensure we don't go |
||
7454 | * over |
||
7455 | */ |
||
7456 | // if (!max_ia_freq) |
||
7457 | max_ia_freq = 3000000; //tsc_khz; |
||
7458 | |||
7459 | /* Convert from kHz to MHz */ |
||
7460 | max_ia_freq /= 1000; |
||
7461 | |||
7462 | mutex_lock(&dev_priv->dev->struct_mutex); |
||
7463 | |||
7464 | /* |
||
7465 | * For each potential GPU frequency, load a ring frequency we'd like |
||
7466 | * to use for memory access. We do this by specifying the IA frequency |
||
7467 | * the PCU should use as a reference to determine the ring frequency. |
||
7468 | */ |
||
7469 | for (gpu_freq = dev_priv->max_delay; gpu_freq >= dev_priv->min_delay; |
||
7470 | gpu_freq--) { |
||
7471 | int diff = dev_priv->max_delay - gpu_freq; |
||
7472 | |||
7473 | /* |
||
7474 | * For GPU frequencies less than 750MHz, just use the lowest |
||
7475 | * ring freq. |
||
7476 | */ |
||
7477 | if (gpu_freq < min_freq) |
||
7478 | ia_freq = 800; |
||
7479 | else |
||
7480 | ia_freq = max_ia_freq - ((diff * scaling_factor) / 2); |
||
7481 | ia_freq = DIV_ROUND_CLOSEST(ia_freq, 100); |
||
7482 | |||
7483 | I915_WRITE(GEN6_PCODE_DATA, |
||
7484 | (ia_freq << GEN6_PCODE_FREQ_IA_RATIO_SHIFT) | |
||
7485 | gpu_freq); |
||
7486 | I915_WRITE(GEN6_PCODE_MAILBOX, GEN6_PCODE_READY | |
||
7487 | GEN6_PCODE_WRITE_MIN_FREQ_TABLE); |
||
7488 | if (wait_for((I915_READ(GEN6_PCODE_MAILBOX) & |
||
7489 | GEN6_PCODE_READY) == 0, 10)) { |
||
7490 | DRM_ERROR("pcode write of freq table timed out\n"); |
||
7491 | continue; |
||
7492 | } |
||
7493 | } |
||
7494 | |||
7495 | mutex_unlock(&dev_priv->dev->struct_mutex); |
||
7496 | } |
||
7497 | |||
2327 | Serge | 7498 | static void ironlake_init_clock_gating(struct drm_device *dev) |
7499 | { |
||
7500 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
7501 | uint32_t dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE; |
||
7502 | |||
7503 | /* Required for FBC */ |
||
7504 | dspclk_gate |= DPFCUNIT_CLOCK_GATE_DISABLE | |
||
7505 | DPFCRUNIT_CLOCK_GATE_DISABLE | |
||
7506 | DPFDUNIT_CLOCK_GATE_DISABLE; |
||
7507 | /* Required for CxSR */ |
||
7508 | dspclk_gate |= DPARBUNIT_CLOCK_GATE_DISABLE; |
||
7509 | |||
7510 | I915_WRITE(PCH_3DCGDIS0, |
||
7511 | MARIUNIT_CLOCK_GATE_DISABLE | |
||
7512 | SVSMUNIT_CLOCK_GATE_DISABLE); |
||
7513 | I915_WRITE(PCH_3DCGDIS1, |
||
7514 | VFMUNIT_CLOCK_GATE_DISABLE); |
||
7515 | |||
7516 | I915_WRITE(PCH_DSPCLK_GATE_D, dspclk_gate); |
||
7517 | |||
7518 | /* |
||
7519 | * According to the spec the following bits should be set in |
||
7520 | * order to enable memory self-refresh |
||
7521 | * The bit 22/21 of 0x42004 |
||
7522 | * The bit 5 of 0x42020 |
||
7523 | * The bit 15 of 0x45000 |
||
7524 | */ |
||
7525 | I915_WRITE(ILK_DISPLAY_CHICKEN2, |
||
7526 | (I915_READ(ILK_DISPLAY_CHICKEN2) | |
||
7527 | ILK_DPARB_GATE | ILK_VSDPFD_FULL)); |
||
7528 | I915_WRITE(ILK_DSPCLK_GATE, |
||
7529 | (I915_READ(ILK_DSPCLK_GATE) | |
||
7530 | ILK_DPARB_CLK_GATE)); |
||
7531 | I915_WRITE(DISP_ARB_CTL, |
||
7532 | (I915_READ(DISP_ARB_CTL) | |
||
7533 | DISP_FBC_WM_DIS)); |
||
7534 | I915_WRITE(WM3_LP_ILK, 0); |
||
7535 | I915_WRITE(WM2_LP_ILK, 0); |
||
7536 | I915_WRITE(WM1_LP_ILK, 0); |
||
7537 | |||
7538 | /* |
||
7539 | * Based on the document from hardware guys the following bits |
||
7540 | * should be set unconditionally in order to enable FBC. |
||
7541 | * The bit 22 of 0x42000 |
||
7542 | * The bit 22 of 0x42004 |
||
7543 | * The bit 7,8,9 of 0x42020. |
||
7544 | */ |
||
7545 | if (IS_IRONLAKE_M(dev)) { |
||
7546 | I915_WRITE(ILK_DISPLAY_CHICKEN1, |
||
7547 | I915_READ(ILK_DISPLAY_CHICKEN1) | |
||
7548 | ILK_FBCQ_DIS); |
||
7549 | I915_WRITE(ILK_DISPLAY_CHICKEN2, |
||
7550 | I915_READ(ILK_DISPLAY_CHICKEN2) | |
||
7551 | ILK_DPARB_GATE); |
||
7552 | I915_WRITE(ILK_DSPCLK_GATE, |
||
7553 | I915_READ(ILK_DSPCLK_GATE) | |
||
7554 | ILK_DPFC_DIS1 | |
||
7555 | ILK_DPFC_DIS2 | |
||
7556 | ILK_CLK_FBC); |
||
7557 | } |
||
7558 | |||
7559 | I915_WRITE(ILK_DISPLAY_CHICKEN2, |
||
7560 | I915_READ(ILK_DISPLAY_CHICKEN2) | |
||
7561 | ILK_ELPIN_409_SELECT); |
||
7562 | I915_WRITE(_3D_CHICKEN2, |
||
7563 | _3D_CHICKEN2_WM_READ_PIPELINED << 16 | |
||
7564 | _3D_CHICKEN2_WM_READ_PIPELINED); |
||
7565 | } |
||
7566 | |||
7567 | static void gen6_init_clock_gating(struct drm_device *dev) |
||
7568 | { |
||
7569 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
7570 | int pipe; |
||
7571 | uint32_t dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE; |
||
7572 | |||
7573 | I915_WRITE(PCH_DSPCLK_GATE_D, dspclk_gate); |
||
7574 | |||
7575 | I915_WRITE(ILK_DISPLAY_CHICKEN2, |
||
7576 | I915_READ(ILK_DISPLAY_CHICKEN2) | |
||
7577 | ILK_ELPIN_409_SELECT); |
||
7578 | |||
7579 | I915_WRITE(WM3_LP_ILK, 0); |
||
7580 | I915_WRITE(WM2_LP_ILK, 0); |
||
7581 | I915_WRITE(WM1_LP_ILK, 0); |
||
7582 | |||
2342 | Serge | 7583 | /* According to the BSpec vol1g, bit 12 (RCPBUNIT) clock |
7584 | * gating disable must be set. Failure to set it results in |
||
7585 | * flickering pixels due to Z write ordering failures after |
||
7586 | * some amount of runtime in the Mesa "fire" demo, and Unigine |
||
7587 | * Sanctuary and Tropics, and apparently anything else with |
||
7588 | * alpha test or pixel discard. |
||
7589 | * |
||
7590 | * According to the spec, bit 11 (RCCUNIT) must also be set, |
||
7591 | * but we didn't debug actual testcases to find it out. |
||
7592 | */ |
||
7593 | I915_WRITE(GEN6_UCGCTL2, |
||
7594 | GEN6_RCPBUNIT_CLOCK_GATE_DISABLE | |
||
7595 | GEN6_RCCUNIT_CLOCK_GATE_DISABLE); |
||
7596 | |||
2327 | Serge | 7597 | /* |
7598 | * According to the spec the following bits should be |
||
7599 | * set in order to enable memory self-refresh and fbc: |
||
7600 | * The bit21 and bit22 of 0x42000 |
||
7601 | * The bit21 and bit22 of 0x42004 |
||
7602 | * The bit5 and bit7 of 0x42020 |
||
7603 | * The bit14 of 0x70180 |
||
7604 | * The bit14 of 0x71180 |
||
7605 | */ |
||
7606 | I915_WRITE(ILK_DISPLAY_CHICKEN1, |
||
7607 | I915_READ(ILK_DISPLAY_CHICKEN1) | |
||
7608 | ILK_FBCQ_DIS | ILK_PABSTRETCH_DIS); |
||
7609 | I915_WRITE(ILK_DISPLAY_CHICKEN2, |
||
7610 | I915_READ(ILK_DISPLAY_CHICKEN2) | |
||
7611 | ILK_DPARB_GATE | ILK_VSDPFD_FULL); |
||
7612 | I915_WRITE(ILK_DSPCLK_GATE, |
||
7613 | I915_READ(ILK_DSPCLK_GATE) | |
||
7614 | ILK_DPARB_CLK_GATE | |
||
7615 | ILK_DPFD_CLK_GATE); |
||
7616 | |||
7617 | for_each_pipe(pipe) { |
||
7618 | I915_WRITE(DSPCNTR(pipe), |
||
7619 | I915_READ(DSPCNTR(pipe)) | |
||
7620 | DISPPLANE_TRICKLE_FEED_DISABLE); |
||
7621 | intel_flush_display_plane(dev_priv, pipe); |
||
7622 | } |
||
7623 | } |
||
7624 | |||
7625 | static void ivybridge_init_clock_gating(struct drm_device *dev) |
||
7626 | { |
||
7627 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
7628 | int pipe; |
||
7629 | uint32_t dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE; |
||
7630 | |||
7631 | I915_WRITE(PCH_DSPCLK_GATE_D, dspclk_gate); |
||
7632 | |||
7633 | I915_WRITE(WM3_LP_ILK, 0); |
||
7634 | I915_WRITE(WM2_LP_ILK, 0); |
||
7635 | I915_WRITE(WM1_LP_ILK, 0); |
||
7636 | |||
7637 | I915_WRITE(ILK_DSPCLK_GATE, IVB_VRHUNIT_CLK_GATE); |
||
7638 | |||
2342 | Serge | 7639 | I915_WRITE(IVB_CHICKEN3, |
7640 | CHICKEN3_DGMG_REQ_OUT_FIX_DISABLE | |
||
7641 | CHICKEN3_DGMG_DONE_FIX_DISABLE); |
||
7642 | |||
2327 | Serge | 7643 | for_each_pipe(pipe) { |
7644 | I915_WRITE(DSPCNTR(pipe), |
||
7645 | I915_READ(DSPCNTR(pipe)) | |
||
7646 | DISPPLANE_TRICKLE_FEED_DISABLE); |
||
7647 | intel_flush_display_plane(dev_priv, pipe); |
||
7648 | } |
||
7649 | } |
||
7650 | |||
7651 | static void g4x_init_clock_gating(struct drm_device *dev) |
||
7652 | { |
||
7653 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
7654 | uint32_t dspclk_gate; |
||
7655 | |||
7656 | I915_WRITE(RENCLK_GATE_D1, 0); |
||
7657 | I915_WRITE(RENCLK_GATE_D2, VF_UNIT_CLOCK_GATE_DISABLE | |
||
7658 | GS_UNIT_CLOCK_GATE_DISABLE | |
||
7659 | CL_UNIT_CLOCK_GATE_DISABLE); |
||
7660 | I915_WRITE(RAMCLK_GATE_D, 0); |
||
7661 | dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE | |
||
7662 | OVRUNIT_CLOCK_GATE_DISABLE | |
||
7663 | OVCUNIT_CLOCK_GATE_DISABLE; |
||
7664 | if (IS_GM45(dev)) |
||
7665 | dspclk_gate |= DSSUNIT_CLOCK_GATE_DISABLE; |
||
7666 | I915_WRITE(DSPCLK_GATE_D, dspclk_gate); |
||
7667 | } |
||
7668 | |||
7669 | static void crestline_init_clock_gating(struct drm_device *dev) |
||
7670 | { |
||
7671 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
7672 | |||
7673 | I915_WRITE(RENCLK_GATE_D1, I965_RCC_CLOCK_GATE_DISABLE); |
||
7674 | I915_WRITE(RENCLK_GATE_D2, 0); |
||
7675 | I915_WRITE(DSPCLK_GATE_D, 0); |
||
7676 | I915_WRITE(RAMCLK_GATE_D, 0); |
||
7677 | I915_WRITE16(DEUC, 0); |
||
7678 | } |
||
7679 | |||
7680 | static void broadwater_init_clock_gating(struct drm_device *dev) |
||
7681 | { |
||
7682 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
7683 | |||
7684 | I915_WRITE(RENCLK_GATE_D1, I965_RCZ_CLOCK_GATE_DISABLE | |
||
7685 | I965_RCC_CLOCK_GATE_DISABLE | |
||
7686 | I965_RCPB_CLOCK_GATE_DISABLE | |
||
7687 | I965_ISC_CLOCK_GATE_DISABLE | |
||
7688 | I965_FBC_CLOCK_GATE_DISABLE); |
||
7689 | I915_WRITE(RENCLK_GATE_D2, 0); |
||
7690 | } |
||
7691 | |||
7692 | static void gen3_init_clock_gating(struct drm_device *dev) |
||
7693 | { |
||
7694 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
7695 | u32 dstate = I915_READ(D_STATE); |
||
7696 | |||
7697 | dstate |= DSTATE_PLL_D3_OFF | DSTATE_GFX_CLOCK_GATING | |
||
7698 | DSTATE_DOT_CLOCK_GATING; |
||
7699 | I915_WRITE(D_STATE, dstate); |
||
7700 | } |
||
7701 | |||
7702 | static void i85x_init_clock_gating(struct drm_device *dev) |
||
7703 | { |
||
7704 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
7705 | |||
7706 | I915_WRITE(RENCLK_GATE_D1, SV_CLOCK_GATE_DISABLE); |
||
7707 | } |
||
7708 | |||
7709 | static void i830_init_clock_gating(struct drm_device *dev) |
||
7710 | { |
||
7711 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
7712 | |||
7713 | I915_WRITE(DSPCLK_GATE_D, OVRUNIT_CLOCK_GATE_DISABLE); |
||
7714 | } |
||
7715 | |||
7716 | static void ibx_init_clock_gating(struct drm_device *dev) |
||
7717 | { |
||
7718 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
7719 | |||
7720 | /* |
||
7721 | * On Ibex Peak and Cougar Point, we need to disable clock |
||
7722 | * gating for the panel power sequencer or it will fail to |
||
7723 | * start up when no ports are active. |
||
7724 | */ |
||
7725 | I915_WRITE(SOUTH_DSPCLK_GATE_D, PCH_DPLSUNIT_CLOCK_GATE_DISABLE); |
||
7726 | } |
||
7727 | |||
7728 | static void cpt_init_clock_gating(struct drm_device *dev) |
||
7729 | { |
||
7730 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
7731 | int pipe; |
||
7732 | |||
7733 | /* |
||
7734 | * On Ibex Peak and Cougar Point, we need to disable clock |
||
7735 | * gating for the panel power sequencer or it will fail to |
||
7736 | * start up when no ports are active. |
||
7737 | */ |
||
7738 | I915_WRITE(SOUTH_DSPCLK_GATE_D, PCH_DPLSUNIT_CLOCK_GATE_DISABLE); |
||
7739 | I915_WRITE(SOUTH_CHICKEN2, I915_READ(SOUTH_CHICKEN2) | |
||
7740 | DPLS_EDP_PPS_FIX_DIS); |
||
7741 | /* Without this, mode sets may fail silently on FDI */ |
||
7742 | for_each_pipe(pipe) |
||
7743 | I915_WRITE(TRANS_CHICKEN2(pipe), TRANS_AUTOTRAIN_GEN_STALL_DIS); |
||
7744 | } |
||
7745 | |||
2332 | Serge | 7746 | static void ironlake_teardown_rc6(struct drm_device *dev) |
7747 | { |
||
7748 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2327 | Serge | 7749 | |
2332 | Serge | 7750 | if (dev_priv->renderctx) { |
7751 | // i915_gem_object_unpin(dev_priv->renderctx); |
||
7752 | // drm_gem_object_unreference(&dev_priv->renderctx->base); |
||
7753 | dev_priv->renderctx = NULL; |
||
7754 | } |
||
2327 | Serge | 7755 | |
2332 | Serge | 7756 | if (dev_priv->pwrctx) { |
7757 | // i915_gem_object_unpin(dev_priv->pwrctx); |
||
7758 | // drm_gem_object_unreference(&dev_priv->pwrctx->base); |
||
7759 | dev_priv->pwrctx = NULL; |
||
7760 | } |
||
7761 | } |
||
2327 | Serge | 7762 | |
2339 | Serge | 7763 | static void ironlake_disable_rc6(struct drm_device *dev) |
7764 | { |
||
7765 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2330 | Serge | 7766 | |
2339 | Serge | 7767 | if (I915_READ(PWRCTXA)) { |
7768 | /* Wake the GPU, prevent RC6, then restore RSTDBYCTL */ |
||
7769 | I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) | RCX_SW_EXIT); |
||
7770 | wait_for(((I915_READ(RSTDBYCTL) & RSX_STATUS_MASK) == RSX_STATUS_ON), |
||
7771 | 50); |
||
2332 | Serge | 7772 | |
2339 | Serge | 7773 | I915_WRITE(PWRCTXA, 0); |
7774 | POSTING_READ(PWRCTXA); |
||
2332 | Serge | 7775 | |
2339 | Serge | 7776 | I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) & ~RCX_SW_EXIT); |
7777 | POSTING_READ(RSTDBYCTL); |
||
7778 | } |
||
2332 | Serge | 7779 | |
2339 | Serge | 7780 | ironlake_teardown_rc6(dev); |
7781 | } |
||
2332 | Serge | 7782 | |
7783 | static int ironlake_setup_rc6(struct drm_device *dev) |
||
7784 | { |
||
7785 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
7786 | |||
7787 | if (dev_priv->renderctx == NULL) |
||
7788 | // dev_priv->renderctx = intel_alloc_context_page(dev); |
||
7789 | if (!dev_priv->renderctx) |
||
7790 | return -ENOMEM; |
||
7791 | |||
7792 | if (dev_priv->pwrctx == NULL) |
||
7793 | // dev_priv->pwrctx = intel_alloc_context_page(dev); |
||
7794 | if (!dev_priv->pwrctx) { |
||
7795 | ironlake_teardown_rc6(dev); |
||
7796 | return -ENOMEM; |
||
7797 | } |
||
7798 | |||
7799 | return 0; |
||
7800 | } |
||
7801 | |||
7802 | void ironlake_enable_rc6(struct drm_device *dev) |
||
7803 | { |
||
7804 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
7805 | int ret; |
||
7806 | |||
7807 | /* rc6 disabled by default due to repeated reports of hanging during |
||
7808 | * boot and resume. |
||
7809 | */ |
||
2342 | Serge | 7810 | if (!intel_enable_rc6(dev)) |
2332 | Serge | 7811 | return; |
7812 | |||
7813 | mutex_lock(&dev->struct_mutex); |
||
7814 | ret = ironlake_setup_rc6(dev); |
||
7815 | if (ret) { |
||
7816 | mutex_unlock(&dev->struct_mutex); |
||
7817 | return; |
||
7818 | } |
||
7819 | |||
7820 | /* |
||
7821 | * GPU can automatically power down the render unit if given a page |
||
7822 | * to save state. |
||
7823 | */ |
||
7824 | #if 0 |
||
7825 | ret = BEGIN_LP_RING(6); |
||
7826 | if (ret) { |
||
7827 | ironlake_teardown_rc6(dev); |
||
7828 | mutex_unlock(&dev->struct_mutex); |
||
7829 | return; |
||
7830 | } |
||
7831 | |||
7832 | OUT_RING(MI_SUSPEND_FLUSH | MI_SUSPEND_FLUSH_EN); |
||
7833 | OUT_RING(MI_SET_CONTEXT); |
||
7834 | OUT_RING(dev_priv->renderctx->gtt_offset | |
||
7835 | MI_MM_SPACE_GTT | |
||
7836 | MI_SAVE_EXT_STATE_EN | |
||
7837 | MI_RESTORE_EXT_STATE_EN | |
||
7838 | MI_RESTORE_INHIBIT); |
||
7839 | OUT_RING(MI_SUSPEND_FLUSH); |
||
7840 | OUT_RING(MI_NOOP); |
||
7841 | OUT_RING(MI_FLUSH); |
||
7842 | ADVANCE_LP_RING(); |
||
7843 | |||
7844 | /* |
||
7845 | * Wait for the command parser to advance past MI_SET_CONTEXT. The HW |
||
7846 | * does an implicit flush, combined with MI_FLUSH above, it should be |
||
7847 | * safe to assume that renderctx is valid |
||
7848 | */ |
||
7849 | ret = intel_wait_ring_idle(LP_RING(dev_priv)); |
||
7850 | if (ret) { |
||
7851 | DRM_ERROR("failed to enable ironlake power power savings\n"); |
||
7852 | ironlake_teardown_rc6(dev); |
||
7853 | mutex_unlock(&dev->struct_mutex); |
||
7854 | return; |
||
7855 | } |
||
7856 | #endif |
||
7857 | |||
7858 | I915_WRITE(PWRCTXA, dev_priv->pwrctx->gtt_offset | PWRCTX_EN); |
||
7859 | I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) & ~RCX_SW_EXIT); |
||
7860 | mutex_unlock(&dev->struct_mutex); |
||
7861 | } |
||
7862 | |||
2330 | Serge | 7863 | void intel_init_clock_gating(struct drm_device *dev) |
7864 | { |
||
7865 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
7866 | |||
7867 | dev_priv->display.init_clock_gating(dev); |
||
7868 | |||
7869 | if (dev_priv->display.init_pch_clock_gating) |
||
7870 | dev_priv->display.init_pch_clock_gating(dev); |
||
7871 | } |
||
7872 | |||
2327 | Serge | 7873 | /* Set up chip specific display functions */ |
7874 | static void intel_init_display(struct drm_device *dev) |
||
7875 | { |
||
7876 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
7877 | |||
7878 | /* We always want a DPMS function */ |
||
7879 | if (HAS_PCH_SPLIT(dev)) { |
||
7880 | dev_priv->display.dpms = ironlake_crtc_dpms; |
||
7881 | dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set; |
||
7882 | dev_priv->display.update_plane = ironlake_update_plane; |
||
7883 | } else { |
||
7884 | dev_priv->display.dpms = i9xx_crtc_dpms; |
||
7885 | dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set; |
||
7886 | dev_priv->display.update_plane = i9xx_update_plane; |
||
7887 | } |
||
7888 | |||
7889 | if (I915_HAS_FBC(dev)) { |
||
7890 | if (HAS_PCH_SPLIT(dev)) { |
||
7891 | dev_priv->display.fbc_enabled = ironlake_fbc_enabled; |
||
7892 | dev_priv->display.enable_fbc = ironlake_enable_fbc; |
||
7893 | dev_priv->display.disable_fbc = ironlake_disable_fbc; |
||
7894 | } else if (IS_GM45(dev)) { |
||
7895 | dev_priv->display.fbc_enabled = g4x_fbc_enabled; |
||
7896 | dev_priv->display.enable_fbc = g4x_enable_fbc; |
||
7897 | dev_priv->display.disable_fbc = g4x_disable_fbc; |
||
7898 | } else if (IS_CRESTLINE(dev)) { |
||
7899 | dev_priv->display.fbc_enabled = i8xx_fbc_enabled; |
||
7900 | dev_priv->display.enable_fbc = i8xx_enable_fbc; |
||
7901 | dev_priv->display.disable_fbc = i8xx_disable_fbc; |
||
7902 | } |
||
7903 | /* 855GM needs testing */ |
||
7904 | } |
||
7905 | |||
7906 | /* Returns the core display clock speed */ |
||
2342 | Serge | 7907 | if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev))) |
2327 | Serge | 7908 | dev_priv->display.get_display_clock_speed = |
7909 | i945_get_display_clock_speed; |
||
7910 | else if (IS_I915G(dev)) |
||
7911 | dev_priv->display.get_display_clock_speed = |
||
7912 | i915_get_display_clock_speed; |
||
7913 | else if (IS_I945GM(dev) || IS_845G(dev) || IS_PINEVIEW_M(dev)) |
||
7914 | dev_priv->display.get_display_clock_speed = |
||
7915 | i9xx_misc_get_display_clock_speed; |
||
7916 | else if (IS_I915GM(dev)) |
||
7917 | dev_priv->display.get_display_clock_speed = |
||
7918 | i915gm_get_display_clock_speed; |
||
7919 | else if (IS_I865G(dev)) |
||
7920 | dev_priv->display.get_display_clock_speed = |
||
7921 | i865_get_display_clock_speed; |
||
7922 | else if (IS_I85X(dev)) |
||
7923 | dev_priv->display.get_display_clock_speed = |
||
7924 | i855_get_display_clock_speed; |
||
7925 | else /* 852, 830 */ |
||
7926 | dev_priv->display.get_display_clock_speed = |
||
7927 | i830_get_display_clock_speed; |
||
7928 | |||
7929 | /* For FIFO watermark updates */ |
||
7930 | if (HAS_PCH_SPLIT(dev)) { |
||
2342 | Serge | 7931 | dev_priv->display.force_wake_get = __gen6_gt_force_wake_get; |
7932 | dev_priv->display.force_wake_put = __gen6_gt_force_wake_put; |
||
7933 | |||
7934 | /* IVB configs may use multi-threaded forcewake */ |
||
7935 | if (IS_IVYBRIDGE(dev)) { |
||
7936 | u32 ecobus; |
||
7937 | |||
7938 | /* A small trick here - if the bios hasn't configured MT forcewake, |
||
7939 | * and if the device is in RC6, then force_wake_mt_get will not wake |
||
7940 | * the device and the ECOBUS read will return zero. Which will be |
||
7941 | * (correctly) interpreted by the test below as MT forcewake being |
||
7942 | * disabled. |
||
7943 | */ |
||
7944 | mutex_lock(&dev->struct_mutex); |
||
7945 | __gen6_gt_force_wake_mt_get(dev_priv); |
||
7946 | ecobus = I915_READ_NOTRACE(ECOBUS); |
||
7947 | __gen6_gt_force_wake_mt_put(dev_priv); |
||
7948 | mutex_unlock(&dev->struct_mutex); |
||
7949 | |||
7950 | if (ecobus & FORCEWAKE_MT_ENABLE) { |
||
7951 | DRM_DEBUG_KMS("Using MT version of forcewake\n"); |
||
7952 | dev_priv->display.force_wake_get = |
||
7953 | __gen6_gt_force_wake_mt_get; |
||
7954 | dev_priv->display.force_wake_put = |
||
7955 | __gen6_gt_force_wake_mt_put; |
||
7956 | } |
||
7957 | } |
||
7958 | |||
2327 | Serge | 7959 | if (HAS_PCH_IBX(dev)) |
7960 | dev_priv->display.init_pch_clock_gating = ibx_init_clock_gating; |
||
7961 | else if (HAS_PCH_CPT(dev)) |
||
7962 | dev_priv->display.init_pch_clock_gating = cpt_init_clock_gating; |
||
7963 | |||
7964 | if (IS_GEN5(dev)) { |
||
7965 | if (I915_READ(MLTR_ILK) & ILK_SRLT_MASK) |
||
7966 | dev_priv->display.update_wm = ironlake_update_wm; |
||
7967 | else { |
||
7968 | DRM_DEBUG_KMS("Failed to get proper latency. " |
||
7969 | "Disable CxSR\n"); |
||
7970 | dev_priv->display.update_wm = NULL; |
||
7971 | } |
||
7972 | dev_priv->display.fdi_link_train = ironlake_fdi_link_train; |
||
7973 | dev_priv->display.init_clock_gating = ironlake_init_clock_gating; |
||
2342 | Serge | 7974 | dev_priv->display.write_eld = ironlake_write_eld; |
2327 | Serge | 7975 | } else if (IS_GEN6(dev)) { |
7976 | if (SNB_READ_WM0_LATENCY()) { |
||
7977 | dev_priv->display.update_wm = sandybridge_update_wm; |
||
2342 | Serge | 7978 | dev_priv->display.update_sprite_wm = sandybridge_update_sprite_wm; |
2327 | Serge | 7979 | } else { |
7980 | DRM_DEBUG_KMS("Failed to read display plane latency. " |
||
7981 | "Disable CxSR\n"); |
||
7982 | dev_priv->display.update_wm = NULL; |
||
7983 | } |
||
7984 | dev_priv->display.fdi_link_train = gen6_fdi_link_train; |
||
7985 | dev_priv->display.init_clock_gating = gen6_init_clock_gating; |
||
2342 | Serge | 7986 | dev_priv->display.write_eld = ironlake_write_eld; |
2327 | Serge | 7987 | } else if (IS_IVYBRIDGE(dev)) { |
7988 | /* FIXME: detect B0+ stepping and use auto training */ |
||
7989 | dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train; |
||
7990 | if (SNB_READ_WM0_LATENCY()) { |
||
7991 | dev_priv->display.update_wm = sandybridge_update_wm; |
||
2342 | Serge | 7992 | dev_priv->display.update_sprite_wm = sandybridge_update_sprite_wm; |
2327 | Serge | 7993 | } else { |
7994 | DRM_DEBUG_KMS("Failed to read display plane latency. " |
||
7995 | "Disable CxSR\n"); |
||
7996 | dev_priv->display.update_wm = NULL; |
||
7997 | } |
||
7998 | dev_priv->display.init_clock_gating = ivybridge_init_clock_gating; |
||
2342 | Serge | 7999 | dev_priv->display.write_eld = ironlake_write_eld; |
2327 | Serge | 8000 | } else |
8001 | dev_priv->display.update_wm = NULL; |
||
8002 | } else if (IS_PINEVIEW(dev)) { |
||
8003 | if (!intel_get_cxsr_latency(IS_PINEVIEW_G(dev), |
||
8004 | dev_priv->is_ddr3, |
||
8005 | dev_priv->fsb_freq, |
||
8006 | dev_priv->mem_freq)) { |
||
8007 | DRM_INFO("failed to find known CxSR latency " |
||
8008 | "(found ddr%s fsb freq %d, mem freq %d), " |
||
8009 | "disabling CxSR\n", |
||
2342 | Serge | 8010 | (dev_priv->is_ddr3 == 1) ? "3" : "2", |
2327 | Serge | 8011 | dev_priv->fsb_freq, dev_priv->mem_freq); |
8012 | /* Disable CxSR and never update its watermark again */ |
||
8013 | pineview_disable_cxsr(dev); |
||
8014 | dev_priv->display.update_wm = NULL; |
||
8015 | } else |
||
8016 | dev_priv->display.update_wm = pineview_update_wm; |
||
8017 | dev_priv->display.init_clock_gating = gen3_init_clock_gating; |
||
8018 | } else if (IS_G4X(dev)) { |
||
2342 | Serge | 8019 | dev_priv->display.write_eld = g4x_write_eld; |
2327 | Serge | 8020 | dev_priv->display.update_wm = g4x_update_wm; |
8021 | dev_priv->display.init_clock_gating = g4x_init_clock_gating; |
||
8022 | } else if (IS_GEN4(dev)) { |
||
8023 | dev_priv->display.update_wm = i965_update_wm; |
||
8024 | if (IS_CRESTLINE(dev)) |
||
8025 | dev_priv->display.init_clock_gating = crestline_init_clock_gating; |
||
8026 | else if (IS_BROADWATER(dev)) |
||
8027 | dev_priv->display.init_clock_gating = broadwater_init_clock_gating; |
||
8028 | } else if (IS_GEN3(dev)) { |
||
8029 | dev_priv->display.update_wm = i9xx_update_wm; |
||
8030 | dev_priv->display.get_fifo_size = i9xx_get_fifo_size; |
||
8031 | dev_priv->display.init_clock_gating = gen3_init_clock_gating; |
||
8032 | } else if (IS_I865G(dev)) { |
||
8033 | dev_priv->display.update_wm = i830_update_wm; |
||
8034 | dev_priv->display.init_clock_gating = i85x_init_clock_gating; |
||
8035 | dev_priv->display.get_fifo_size = i830_get_fifo_size; |
||
8036 | } else if (IS_I85X(dev)) { |
||
8037 | dev_priv->display.update_wm = i9xx_update_wm; |
||
8038 | dev_priv->display.get_fifo_size = i85x_get_fifo_size; |
||
8039 | dev_priv->display.init_clock_gating = i85x_init_clock_gating; |
||
8040 | } else { |
||
8041 | dev_priv->display.update_wm = i830_update_wm; |
||
8042 | dev_priv->display.init_clock_gating = i830_init_clock_gating; |
||
8043 | if (IS_845G(dev)) |
||
8044 | dev_priv->display.get_fifo_size = i845_get_fifo_size; |
||
8045 | else |
||
8046 | dev_priv->display.get_fifo_size = i830_get_fifo_size; |
||
8047 | } |
||
8048 | |||
8049 | /* Default just returns -ENODEV to indicate unsupported */ |
||
8050 | // dev_priv->display.queue_flip = intel_default_queue_flip; |
||
8051 | |||
8052 | #if 0 |
||
8053 | switch (INTEL_INFO(dev)->gen) { |
||
8054 | case 2: |
||
8055 | dev_priv->display.queue_flip = intel_gen2_queue_flip; |
||
8056 | break; |
||
8057 | |||
8058 | case 3: |
||
8059 | dev_priv->display.queue_flip = intel_gen3_queue_flip; |
||
8060 | break; |
||
8061 | |||
8062 | case 4: |
||
8063 | case 5: |
||
8064 | dev_priv->display.queue_flip = intel_gen4_queue_flip; |
||
8065 | break; |
||
8066 | |||
8067 | case 6: |
||
8068 | dev_priv->display.queue_flip = intel_gen6_queue_flip; |
||
8069 | break; |
||
8070 | case 7: |
||
8071 | dev_priv->display.queue_flip = intel_gen7_queue_flip; |
||
8072 | break; |
||
8073 | } |
||
8074 | #endif |
||
8075 | } |
||
8076 | |||
8077 | /* |
||
8078 | * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend, |
||
8079 | * resume, or other times. This quirk makes sure that's the case for |
||
8080 | * affected systems. |
||
8081 | */ |
||
2342 | Serge | 8082 | static void quirk_pipea_force(struct drm_device *dev) |
2327 | Serge | 8083 | { |
8084 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
8085 | |||
8086 | dev_priv->quirks |= QUIRK_PIPEA_FORCE; |
||
8087 | DRM_DEBUG_DRIVER("applying pipe a force quirk\n"); |
||
8088 | } |
||
8089 | |||
8090 | /* |
||
8091 | * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason |
||
8092 | */ |
||
8093 | static void quirk_ssc_force_disable(struct drm_device *dev) |
||
8094 | { |
||
8095 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
8096 | dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE; |
||
8097 | } |
||
8098 | |||
8099 | struct intel_quirk { |
||
8100 | int device; |
||
8101 | int subsystem_vendor; |
||
8102 | int subsystem_device; |
||
8103 | void (*hook)(struct drm_device *dev); |
||
8104 | }; |
||
8105 | |||
8106 | struct intel_quirk intel_quirks[] = { |
||
8107 | /* HP Compaq 2730p needs pipe A force quirk (LP: #291555) */ |
||
8108 | { 0x2a42, 0x103c, 0x30eb, quirk_pipea_force }, |
||
8109 | /* HP Mini needs pipe A force quirk (LP: #322104) */ |
||
2342 | Serge | 8110 | { 0x27ae, 0x103c, 0x361a, quirk_pipea_force }, |
2327 | Serge | 8111 | |
8112 | /* Thinkpad R31 needs pipe A force quirk */ |
||
8113 | { 0x3577, 0x1014, 0x0505, quirk_pipea_force }, |
||
8114 | /* Toshiba Protege R-205, S-209 needs pipe A force quirk */ |
||
8115 | { 0x2592, 0x1179, 0x0001, quirk_pipea_force }, |
||
8116 | |||
8117 | /* ThinkPad X30 needs pipe A force quirk (LP: #304614) */ |
||
8118 | { 0x3577, 0x1014, 0x0513, quirk_pipea_force }, |
||
8119 | /* ThinkPad X40 needs pipe A force quirk */ |
||
8120 | |||
8121 | /* ThinkPad T60 needs pipe A force quirk (bug #16494) */ |
||
8122 | { 0x2782, 0x17aa, 0x201a, quirk_pipea_force }, |
||
8123 | |||
8124 | /* 855 & before need to leave pipe A & dpll A up */ |
||
8125 | { 0x3582, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, |
||
8126 | { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, |
||
8127 | |||
8128 | /* Lenovo U160 cannot use SSC on LVDS */ |
||
8129 | { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable }, |
||
8130 | |||
8131 | /* Sony Vaio Y cannot use SSC on LVDS */ |
||
8132 | { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable }, |
||
8133 | }; |
||
8134 | |||
8135 | static void intel_init_quirks(struct drm_device *dev) |
||
8136 | { |
||
8137 | struct pci_dev *d = dev->pdev; |
||
8138 | int i; |
||
8139 | |||
8140 | for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { |
||
8141 | struct intel_quirk *q = &intel_quirks[i]; |
||
8142 | |||
8143 | if (d->device == q->device && |
||
8144 | (d->subsystem_vendor == q->subsystem_vendor || |
||
8145 | q->subsystem_vendor == PCI_ANY_ID) && |
||
8146 | (d->subsystem_device == q->subsystem_device || |
||
8147 | q->subsystem_device == PCI_ANY_ID)) |
||
8148 | q->hook(dev); |
||
8149 | } |
||
8150 | } |
||
8151 | |||
2330 | Serge | 8152 | /* Disable the VGA plane that we never use */ |
8153 | static void i915_disable_vga(struct drm_device *dev) |
||
8154 | { |
||
8155 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
8156 | u8 sr1; |
||
8157 | u32 vga_reg; |
||
2327 | Serge | 8158 | |
2330 | Serge | 8159 | if (HAS_PCH_SPLIT(dev)) |
8160 | vga_reg = CPU_VGACNTRL; |
||
8161 | else |
||
8162 | vga_reg = VGACNTRL; |
||
8163 | |||
8164 | // vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO); |
||
8165 | out8(VGA_SR_INDEX, 1); |
||
8166 | sr1 = in8(VGA_SR_DATA); |
||
8167 | out8(VGA_SR_DATA,sr1 | 1<<5); |
||
8168 | // vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); |
||
8169 | udelay(300); |
||
8170 | |||
8171 | I915_WRITE(vga_reg, VGA_DISP_DISABLE); |
||
8172 | POSTING_READ(vga_reg); |
||
8173 | } |
||
8174 | |||
2327 | Serge | 8175 | void intel_modeset_init(struct drm_device *dev) |
8176 | { |
||
8177 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
2342 | Serge | 8178 | int i, ret; |
2327 | Serge | 8179 | |
8180 | drm_mode_config_init(dev); |
||
8181 | |||
8182 | dev->mode_config.min_width = 0; |
||
8183 | dev->mode_config.min_height = 0; |
||
8184 | |||
8185 | dev->mode_config.funcs = (void *)&intel_mode_funcs; |
||
8186 | |||
8187 | intel_init_quirks(dev); |
||
8188 | |||
8189 | intel_init_display(dev); |
||
8190 | |||
8191 | if (IS_GEN2(dev)) { |
||
8192 | dev->mode_config.max_width = 2048; |
||
8193 | dev->mode_config.max_height = 2048; |
||
8194 | } else if (IS_GEN3(dev)) { |
||
8195 | dev->mode_config.max_width = 4096; |
||
8196 | dev->mode_config.max_height = 4096; |
||
8197 | } else { |
||
8198 | dev->mode_config.max_width = 8192; |
||
8199 | dev->mode_config.max_height = 8192; |
||
8200 | } |
||
8201 | dev->mode_config.fb_base = get_bus_addr(); |
||
8202 | |||
8203 | DRM_DEBUG_KMS("%d display pipe%s available.\n", |
||
8204 | dev_priv->num_pipe, dev_priv->num_pipe > 1 ? "s" : ""); |
||
8205 | |||
8206 | for (i = 0; i < dev_priv->num_pipe; i++) { |
||
8207 | intel_crtc_init(dev, i); |
||
2342 | Serge | 8208 | ret = intel_plane_init(dev, i); |
8209 | if (ret) |
||
8210 | DRM_DEBUG_KMS("plane %d init failed: %d\n", i, ret); |
||
2327 | Serge | 8211 | } |
8212 | |||
8213 | /* Just disable it once at startup */ |
||
8214 | i915_disable_vga(dev); |
||
8215 | intel_setup_outputs(dev); |
||
8216 | |||
8217 | intel_init_clock_gating(dev); |
||
8218 | |||
8219 | if (IS_IRONLAKE_M(dev)) { |
||
8220 | ironlake_enable_drps(dev); |
||
8221 | intel_init_emon(dev); |
||
8222 | } |
||
8223 | |||
8224 | if (IS_GEN6(dev) || IS_GEN7(dev)) { |
||
8225 | gen6_enable_rps(dev_priv); |
||
8226 | gen6_update_ring_freq(dev_priv); |
||
8227 | } |
||
8228 | |||
2332 | Serge | 8229 | // INIT_WORK(&dev_priv->idle_work, intel_idle_update); |
8230 | // setup_timer(&dev_priv->idle_timer, intel_gpu_idle_timer, |
||
8231 | // (unsigned long)dev); |
||
2330 | Serge | 8232 | } |
2327 | Serge | 8233 | |
2332 | Serge | 8234 | void intel_modeset_gem_init(struct drm_device *dev) |
8235 | { |
||
8236 | if (IS_IRONLAKE_M(dev)) |
||
8237 | ironlake_enable_rc6(dev); |
||
2330 | Serge | 8238 | |
2332 | Serge | 8239 | // intel_setup_overlay(dev); |
8240 | } |
||
8241 | |||
8242 | |||
2330 | Serge | 8243 | /* |
8244 | * Return which encoder is currently attached for connector. |
||
8245 | */ |
||
8246 | struct drm_encoder *intel_best_encoder(struct drm_connector *connector) |
||
8247 | { |
||
8248 | return &intel_attached_encoder(connector)->base; |
||
2327 | Serge | 8249 | } |
8250 | |||
2330 | Serge | 8251 | void intel_connector_attach_encoder(struct intel_connector *connector, |
8252 | struct intel_encoder *encoder) |
||
8253 | { |
||
8254 | connector->encoder = encoder; |
||
8255 | drm_mode_connector_attach_encoder(&connector->base, |
||
8256 | &encoder->base); |
||
8257 | }>5); |
||
2327 | Serge | 8258 | |
2330 | Serge | 8259 |